CN223874336U - Resistance clutch structure on running machine - Google Patents

Abstract

This utility model relates to the field of fitness equipment technology, and more particularly to a resistance clutch structure for a treadmill. It includes a wheel assembly rotatably mounted on the frame and connected to the running track, a clutch wheel coaxially mounted with the wheel assembly, and a clutch transmission device connected to a clutch control component. The clutch wheel is connected to a resistance adjustment mechanism, and a clutch assembly is provided between the clutch wheel and the wheel in the wheel assembly. The clutch transmission device controls the clutch wheel to move closer to or further away from the wheel in the wheel assembly. When the clutch wheel moves closer to the wheel, it is engaged with the wheel assembly through the clutch assembly; when the clutch wheel moves further away from the wheel, it disengages from the wheel assembly. This solution has the advantages of simple structure, convenient adjustment, and good user experience.

Description

Resistance clutch structure on running machine

Technical Field

The utility model relates to the technical field of fitness equipment, in particular to a resistance clutch structure on a running machine.

Background

With the increasing competition in the fitness equipment market, manufacturers are continually creating and improving products to appeal to consumers. The running machine with the resistance clutch structure has a large selling point of products because of richer functions and better training effect, and is beneficial to improving the competitiveness and market share of the products. Along with the improvement of health consciousness of people, the requirements on the functions of fitness equipment are also increasing. Simple running has failed to meet the needs of some users. Therefore, it has become a trend to provide a resistance device on exercise equipment (such as a running machine, an elliptical machine and an exercise bicycle) for improving the exercise intensity and achieving a better exercise effect. For users who want to do high-strength and high-resistance exercise (such as simulated climbing running, sprint running, etc.), the resistance of running belt running is increased through the resistance clutch structure, so that leg muscle strength, endurance improvement, etc. can be better exercised. And for people who only perform easy jogging or rehabilitation exercise, the resistance is reduced, so that the running belt runs more smoothly, and the people can conveniently exercise in a comfortable state. In addition, different road surface conditions can be simulated by adjusting the resistance clutch, such as running on flat ground, running on mountain roads with certain gradient, and the like. For example, when the resistance is properly increased, the feeling of needing to overcome larger resistance when the user climbs the slope can be created, and the exercise effect is more similar to the running condition under outdoor varied road conditions.

In the prior art, chinese patent publication No. CN117942527A describes an unpowered treadmill comprising a treadmill body and a resistance device. According to the scheme, the running resistance is increased through the resistance device, the running resistance can be adjusted through the resistance device, and the running resistance device can be suitable for the use requirements of different users on different running resistance. Furthermore, in the scheme, whether the resistance device provides running resistance for the belt wheel and the running belt or not can be controlled through the clutch, so that the applicability of the product on the running resistance is further improved.

However, the clutch adjusting structure in the scheme is complex, and the clutch adjusting structure is inconvenient, rapid and convenient to adjust. Such a complex structure not only increases the manufacturing costs of the product, but may also reduce the user experience. In the actual use process, the user may need to frequently adjust the resistance, and complicated adjusting structure can lead to complex operation, influences continuity and the effect of taking exercise. In addition, the complex structure may increase the difficulty of maintenance and repair, reducing the durability and reliability of the product.

In view of the above, there is a need in the art for improvements.

Disclosure of Invention

In order to solve the problems, the utility model aims to provide a resistance clutch structure on a running machine, which has the advantages of simple structure, convenient adjustment and good use experience.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

a resistance clutch structure on a running machine comprises a wheel assembly rotatably arranged on a frame and connected with a runway, a clutch wheel coaxially arranged with the wheel assembly, and a clutch transmission device connected with a clutch control component, wherein the clutch wheel is connected with a resistance adjusting mechanism, the clutch assembly is arranged between the clutch wheel and a wheel in the wheel assembly, the clutch transmission device controls the clutch wheel to approach or separate from the wheel in the wheel assembly, when the clutch wheel approaches to the wheel, the clutch wheel is linked with the wheel assembly through the clutch assembly, and when the clutch wheel separates from the wheel, the clutch wheel is separated from the wheel assembly.

Furthermore, the application also provides a clutch bushing which is movably arranged on the axle of the wheel assembly, the clutch wheel is rotatably arranged on the clutch bushing through a bearing, and a pressing plate is fixedly connected to the free end of the clutch bushing and used for limiting the bearing and the clutch wheel.

The clutch assembly comprises a first grab disc fixedly connected with a clutch wheel, a second grab disc connected with the wheel, and a clutch elastic reset component used for driving the first grab disc to approach or separate from the second grab disc, wherein the first grab disc is engaged with or separated from the second grab disc under the action of a clutch transmission device and the clutch elastic reset component.

Furthermore, the application also provides that the clutch elastic resetting component is constructed as a pressure spring arranged on an axle between the first grabbing disc and the second grabbing disc, and the clutch transmission device is constructed as a shifting fork type clutch device capable of pressing the clutch wheel and the first grabbing disc fixedly connected with the clutch wheel to the second grabbing disc.

Furthermore, the application also provides that the clutch elastic resetting component is constructed as a pressure spring arranged on an axle outside the clutch wheel, and the clutch transmission device is constructed as a traction type clutch device which can separate the clutch wheel and the first grabbing disc fixedly connected with the clutch wheel from the second grabbing disc.

The application further provides a clutch assembly which comprises a rubber disc fixedly connected with a clutch wheel or a wheel, and a clutch elastic reset component used for driving the clutch wheel to approach or separate from the wheel, wherein when the clutch wheel is tightly pressed against the wheel, the rubber disc enables the clutch wheel and the wheel to synchronously rotate.

The application further provides that the inner side of the clutch wheel is provided with a connecting ring, the rubber disc is sleeved on the connecting ring, the rubber disc is in a frustum shape, the end face of the rubber disc, which faces the wheel, is in a rough surface, and the end face of the wheel, which faces the rubber disc, is in a groove matched with the frustum shape of the rubber disc.

Furthermore, the application also provides that the clutch elastic resetting component is constructed as a pressure spring arranged on an axle between the rubber disc and the wheel or between the rubber disc and the clutch wheel, and the clutch transmission device is constructed as a shifting fork type clutch device capable of pressing the clutch wheel and the clutch wheel fixedly connected with the clutch wheel to the wheel.

Furthermore, the application also proposes that the clutch elastic restoring element is constructed as a compression spring arranged on the axle outside the clutch wheel, and the clutch transmission is constructed as a traction clutch device which can distance the clutch wheel from the wheel.

The application further provides a shifting fork type clutch device, which comprises a clutch shifting fork rotating on a frame and a pull rod connected to the input end of the clutch shifting fork, wherein the tail end of the clutch control component is connected with the pull rod, when the pull rod is pulled, the clutch shifting fork rotates along the axis point of the pull rod, and the tail end of the clutch shifting fork is pressed against a clutch wheel.

The application further provides a traction type clutch device, which comprises a pull rope seat fixed on the frame and a traction pull rope connected with the clutch control component, wherein the tail end of the traction pull rope penetrates through the pull rope seat to be connected with the pressing plate, the clutch elastic reset component presses the pressing plate tightly, when the traction pull rope pulls the pressing plate, the clutch wheel is separated from the wheel, and when the traction force is removed, the clutch elastic reset component presses the clutch wheel to the wheel to enable the clutch wheel and the wheel to synchronously rotate.

The application further provides a resistance adjusting mechanism which comprises a flywheel rotatably arranged on the frame and a magnetic control assembly arranged on a frame beside the flywheel, wherein the flywheel is connected with the clutch wheel through an enhanced transmission assembly.

The application further provides that the flywheel and the clutch wheel are respectively arranged on two sides of the frame, the reinforced transmission assembly comprises a first belt wheel assembly and a second belt wheel assembly, the first belt wheel assembly comprises a first belt wheel, a second belt wheel and a belt wheel shaft, the first belt wheel and the second belt wheel are respectively arranged on two sides of the frame, the belt wheel shaft is connected with the first belt wheel and the second belt wheel, the second belt wheel assembly is arranged on the same side of the frame, the third belt wheel and the fourth belt wheel are connected with the third belt wheel and the fourth belt wheel, the first belt wheel is connected with the clutch wheel through a belt, the second belt wheel is connected with the third belt wheel through a belt, and the fourth belt wheel is connected with a fifth belt wheel on the flywheel through a belt.

The resistance clutch structure on the running machine comprises a wheel assembly rotatably arranged on a frame and connected with a runway, a clutch wheel coaxially arranged with the wheel assembly, and a clutch transmission device connected with a clutch control component, wherein the clutch wheel is connected with a resistance adjusting mechanism, the clutch assembly is arranged between the clutch wheel and a wheel in the wheel assembly, the clutch transmission device controls the clutch wheel to approach or separate from the wheel in the wheel assembly, when the clutch wheel approaches to the wheel, the clutch wheel is linked with the wheel assembly through the clutch assembly, and when the clutch wheel separates from the wheel, the clutch wheel is separated from the wheel assembly. The resistance is quickly adjusted through the simple clutch structure, and the clutch has the advantages of being simple in structure, convenient to adjust and good in use experience.

Drawings

Fig. 1 is a schematic perspective view of a first structure of a drag clutch structure according to the present application.

Fig. 2 is a schematic top view of a first structure of a drag clutch structure according to the present application.

Fig. 3 is an exploded view of a first structural installation of the drag clutch structure provided by the present application.

Fig. 4 is a partial exploded view of a second construction of the drag clutch construction provided by the present application.

Fig. 5 is a partial exploded view of a third configuration of the drag clutch configuration provided by the present application.

Fig. 6 is a schematic perspective view of a fourth structure of the drag clutch structure provided by the present application.

Fig. 7 is a schematic top view of a fourth structure of the drag clutch structure according to the present application.

Fig. 8 is an exploded view of a fourth construction installation of the drag clutch construction provided by the present application.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is two or more, unless otherwise clearly defined.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected via an intervening medium, or in communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

As shown in fig. 1 to 8, the present embodiment relates to a resistance clutch structure on a running machine, which comprises a wheel assembly 11 rotatably arranged on a frame 1 and connected with a runway, a clutch wheel 2 coaxially arranged with the wheel assembly 11, and a clutch transmission device connected with a clutch control component, wherein the clutch wheel 2 is connected with a resistance adjusting mechanism, a clutch assembly is arranged between the clutch wheel 2 and a wheel 10 in the wheel assembly 11, the clutch transmission device controls the clutch wheel 2 to approach or separate from the wheel 10 in the wheel assembly 11, when the clutch wheel 2 approaches to the wheel 10, the clutch wheel 2 is linked with the wheel assembly 11 through the clutch assembly, and when the clutch wheel 2 separates from the wheel 10, the clutch wheel 2 is separated from the wheel assembly 11. According to the technical scheme, the rapid adjustment of the resistance clutch of the running machine is realized by arranging the clutch wheel 2, the clutch transmission device and the clutch assembly. The clutch wheel 2 is coaxially arranged with the wheel assembly 11, and the clutch control part controls the clutch wheel 2 to be close to or far away from the wheel 10 through the clutch transmission device, so that the clutch wheel 2 is linked with or separated from the wheel 10. The structure simplifies the complexity of clutch adjustment, so that a user can more conveniently adjust the resistance of the running machine, and different exercise requirements are met. Compared with the prior art, the technical scheme of the application has the advantages of simple structure and convenient adjustment, and can effectively solve the technical problems of complex resistance clutch structure and inconvenient adjustment on the running machine.

As shown in fig. 1-3 and 6-8, the resistance adjusting mechanism comprises a flywheel 30 rotatably arranged on the frame 1 and a magnetic control assembly arranged on a frame beside the flywheel 30, wherein the flywheel 30 is connected with the clutch wheel 2 through an enhanced transmission assembly. In a specific scheme, the flywheel 30 and the clutch wheel 2 are respectively positioned at two sides of the frame 1, the reinforced transmission assembly comprises a first pulley assembly 300 and a second pulley assembly 301, the first pulley assembly 300 comprises a first pulley 31 and a second pulley 32 which are respectively positioned at two sides of the frame, and pulley shafts for connecting the first pulley 31 and the second pulley 32, a third pulley 33 and a fourth pulley 34 which are positioned at the same side of the frame as the second pulley assembly 301, and pulley shafts for connecting the third pulley 33 and the fourth pulley 34, the first pulley 31 and the clutch wheel 2 are connected and synchronized by adopting a belt, the second pulley 32 and the third pulley 33 are connected and synchronized by adopting a belt, and the fourth pulley 34 and a fifth pulley 35 on the flywheel 30 are connected and synchronized by adopting a belt.

In the above-described scheme, in the resistance adjusting mechanism, the clutch wheel 2 serves as the end of the transmission chain, and the rotation state thereof is precisely controlled. When the clutch wheel 2 starts to rotate, this action is synchronously transmitted to the first pulley 31 in the first pulley assembly 300 via the belt connection. The first pulley 31 is located on one side of the frame and is directly connected to the clutch pulley 2, ensuring a seamless transfer of energy. As the first pulley 31 rotates, the belt transfers energy further to a second pulley 32 located on the other side of the frame. The second belt pulley 32 is tightly connected with the first belt pulley 31 through a firm belt pulley shaft, so that the stability and the continuity of transmission are ensured. At this point, the rotation of the second pulley 32 marks that the energy has successfully crossed the frame, entering the next stage of the drive train. Next, the rotation of the second pulley 32 is synchronously transmitted to the third pulley 33 in the second pulley assembly 301 through the belt connection. The third pulley 33 and the fourth pulley 34 are located on the same side of the frame and are closely connected by another pulley shaft. This design not only enhances the stability of the drive, but also facilitates subsequent reluctance adjustment. When the third pulley 33 receives energy and starts to rotate, it transmits this energy again to the fourth pulley 34 via the belt. The fourth pulley 34, which is the key ring in the drive chain, is synchronized with the fifth pulley 35 on the flywheel 30 by means of a belt. This step marks that energy has been successfully transferred from the clutch 2 side to the flywheel 30 side. On the flywheel 30 side, rotation of the fifth pulley 35 drives the flywheel 30 to start operation. The flywheel 30 acts as one of the sources of resistance to the drive train, and the resistance generated by its own rotation not only provides a constant resistance to the overall system, but also creates an adjustable reluctance effect by the interaction of the magnetic control assembly with the magnetic field beside the flywheel 30. The magnetic resistance effect not only introduces extra resistance to the transmission system, but also realizes dynamic control of the transmission resistance through accurate adjustment of the magnetic control component.

It is worth noting that the magnetic control assembly always plays a key role in the whole transmission process, but the magnetic control assembly can adopt the scheme on the existing body-building equipment. According to the actual requirement of the transmission system, the magnetic field generated by the flywheel 30 is accurately regulated, so that the flexible control of the magnetic resistance effect is realized. The enhancement and adjustment of the reluctance not only improves the stability and response speed of the transmission system, but also enables the whole system to maintain optimal transmission performance in the face of different loads or running conditions. In summary, the resistance adjustment mechanism achieves an efficient, stable and controllable transmission process between the flywheel 30 and the clutch wheel 2 through its unique enhanced transmission assembly design. The magnetic resistance effect is obviously enhanced, the performance and stability of the transmission system are improved, and strong technical support is provided for wide application in the fields of body building equipment, power transmission and the like.

As shown in fig. 3-5 and 8, a clutch liner 12 is movably arranged on an axle of a wheel assembly 11, a clutch wheel 2 is rotatably arranged on the clutch liner 12 through a bearing 13, and a pressing plate 14 is fixedly connected to the free end of the clutch liner 12 for limiting the bearing 13 and the clutch wheel 2. In this solution, the clutch sleeve 12 is arranged such that the clutch wheel 2 can be moved on the axle while the rotation of the clutch wheel 2 is effected via the bearing 13. The pressing plate 14 is used for limiting the bearing 13 and the clutch wheel 2, so that the clutch wheel 2, the bearing 13, the clutch bushing 12 and the pressing plate 14 are integrated, and the stability of the clutch wheel 2 in the moving and rotating processes is ensured. This structural design effectively solves the problems of connection and limitation between the clutch wheel 2 and the wheel assembly 11, so that the clutch wheel 2 can be stably linked with or disconnected from the wheel assembly 11, thereby realizing effective adjustment of the resistance of the running machine. Specifically, the clutch liner 12 may be made of a metallic material to ensure its strength and wear resistance. The bearing 13 may be a rolling bearing or a sliding bearing, the specific choice depending on the desired rotational accuracy and load capacity. The pressure plate 14 may be fixed to the free end of the clutch bushing 12 by means of bolts or welding or the like to ensure its stability. Furthermore, the movement of the clutch sleeve 12 may be effected by manual or automatic control, for example by means of a shifting fork clutch or a traction clutch. Therefore, the technical scheme of the application realizes stable connection and limit between the clutch wheel 2 and the wheel assembly 11 through the combined design of the clutch liner 12, the bearing 13 and the pressing plate 14, and solves the problems of complex clutch adjusting structure and inconvenient and rapid adjustment in the prior art. Compared with the prior art, the technical scheme of the application has the advantages of simple structure, convenient adjustment, high stability and the like, and can effectively improve the use experience and the body-building effect of the running machine.

In the drawing, a wheel 10 of a wheel assembly 11 is rotatably provided on an axle through a bearing 13.

The clutch assembly may take one of two embodiments:

First embodiment of the clutch assembly as shown in fig. 3 and 4, the clutch assembly comprises a first grab disk 21 fixedly connected with a clutch wheel 2, a second grab disk 22 connected with a wheel 10, and a clutch elastic reset component 23 for driving the first grab disk 21 to approach or separate from the second grab disk 22, wherein the first grab disk 21 is in close engagement with or separate from the second grab disk 22 under the action of a clutch transmission device and the clutch elastic reset component 23. Specifically, the first grab disk 21 is fixedly connected with the clutch wheel 2, the second grab disk 22 is connected with the wheel 10, and the clutch elastic restoring member 23 drives the first grab disk 21 to approach or separate from the second grab disk 22. The clutch elastic restoring member 23 may be constructed as a compression spring provided on the axle between the first and second grab discs 21, 22 or as a compression spring provided on the axle outside the clutch wheel 2. The clutch transmission can be constructed as a fork clutch which can press the clutch wheel 2 and its fixedly connected first catch plate 21 against the second catch plate 22 or as a traction clutch which can distance the clutch wheel 2 and its fixedly connected first catch plate 21 from the second catch plate 22. The clutch assembly thus effects the coupling or decoupling of the clutch wheel 2 from the wheel 10 by the engagement of the first catch plate 21 with the second catch plate 22. When the clutch transmission device and the clutch elastic reset part 23 work together, the first grabbing disc 21 and the second grabbing disc 22 can be stably engaged or disengaged, so that the effective control of the resistance clutch structure of the running machine is realized. The design ensures the stability and reliability of the clutch assembly in the engaging and disengaging process, and solves the problems of complex traditional clutch structure and inconvenient adjustment.

A second embodiment of the clutch assembly is shown in fig. 5 and 8, and the clutch assembly comprises a rubber disc 24 fixedly connected with the clutch wheel 2 or the wheel 10, and a clutch elastic resetting member 23 for driving the clutch wheel 2 to approach or separate from the wheel 10, wherein the clutch wheel 2 and the wheel 10 synchronously rotate through the rubber disc 24 when the clutch wheel 2 presses the wheel 10. The rubber plate 24 is used as a connecting member, and may be made of rubber or other materials with good friction performance, so as to ensure that the rotational force can be effectively transmitted when the clutch wheel 2 is pressed against the wheel 10. The glue tray 24 may be circular, oval or other suitable shape, the specific shape being designed according to the contact surface of the clutch wheel 2 and the wheel 10. The thickness and hardness of the glue tray 24 may be adjusted according to the desired friction and durability. The clutch elastic restoring member 23 may be a spring, an elastic piece, or other mechanical member having elasticity for driving the clutch wheel 2 toward or away from the wheel 10 by the clutch transmission. The spring force of the clutch spring return member 23 can be adjusted according to the contact pressure between the clutch wheel 2 and the wheel 10 to ensure that the clutch wheel 2 can be effectively pressed against or separated from the wheel 10. According to the technical scheme, the rubber plate 24 is fixedly connected with the clutch wheel 2 or the wheel 10, so that the clutch wheel 2 is directly connected with the wheel 10. The clutch elastic restoring member 23 functions to drive the clutch wheel 2 toward or away from the wheel 10, thereby controlling the interlocking or decoupling of the clutch wheel 2 and the wheel 10. When the clutch wheel 2 presses the wheel 10, the rubber disc 24 is used for enabling the clutch wheel 2 and the wheel 10 to synchronously rotate, so that the resistance of the running machine is adjusted. The clutch structure is simplified by the design, so that the adjustment is more convenient and quick. Compared with the prior art, the technical scheme of the application has the advantages of simple structure, convenient adjustment, high reliability and the like, and can effectively solve the technical problems of complex resistance clutch structure and inconvenient adjustment of the running machine.

In a specific scheme, a connecting ring 20 is constructed on the inner side of the clutch wheel 2, a rubber disc 24 is sleeved on the connecting ring 20, the rubber disc 24 is constructed in a frustum shape, the end face of the rubber disc 24 facing the wheel 10 is constructed in a rough surface, and the end face of the wheel 10 facing the rubber disc 24 is constructed in a groove matched with the frustum shape of the rubber disc 24. The function of the connecting ring 20 is to provide a stable connection point, so that the rubber disc 24 can be tightly sleeved on the clutch wheel 2, thereby enhancing the connection strength between the two. The frustoconical design of the rubber disc 24 not only increases the contact area with the wheel 10, but also further improves the stability of the connection by adapting its shape to the recess on the wheel 10. The rough surface on the rubber disc 24 is matched with the groove on the wheel 10, so that friction force is increased, and the slipping phenomenon is effectively prevented. The roughened surface may be formed by a special treatment, such as sanding or texturing, on the surface of the glue pan 24 to increase the coefficient of friction. The grooves on the wheel 10 may be formed by precision machining to ensure that the shape and size thereof exactly matches the frustoconical shape of the glue disc 24. Therefore, the connection stability between the clutch wheel 2 and the wheel 10 is obviously enhanced by constructing the connection ring 20, the frustum-shaped rubber disk 24 and the design of the rough surface and the groove. Specifically, the connection ring 20 enables the rubber disc 24 to be firmly sleeved on the clutch wheel 2, the contact area is increased by the design of the conical rubber disc 24, and friction force is further improved by the cooperation of the rough surface and the groove, so that slipping is prevented. The technical characteristics act together to solve the problem that the connection between the clutch wheel 2 and the wheel 10 is unstable and easy to slip, and improve the reliability and stability of the resistance clutch structure of the running machine. Compared with the prior art, the technical scheme of the application has the advantages of simpler structure, more convenient operation, and capability of quickly and effectively adjusting the clutch state, thereby improving the user experience.

The clutch transmission also has the following two embodiments, including a fork type clutch device and a traction type clutch device:

As shown in fig. 1-3 and 5, the fork-type clutch device comprises a clutch fork 41 rotating on a frame 1 and a pull rod 42 connected to the input end of the clutch fork 41, wherein the tail end of a clutch control component is connected with the pull rod 42, and the clutch control component can be a clutch control handle arranged at the upper end of a stand column. When the pull rod 42 is pulled, the clutch fork 41 rotates along its axis point, and the tip of the clutch fork 41 is pressed against the clutch wheel 2. Specifically, the rotational movement of the clutch fork 41 is achieved by driving the pull rod 42, and the pull rod 42 is connected to the clutch control part, so that the clutch operation is more direct and rapid. The tip of the clutch fork 41 is directly pressed against the clutch wheel 2, ensuring the stability and reliability of the clutch action. As a preferred embodiment, the shaft point of the clutch fork 41 may be provided at a fixed position of the frame 1 to ensure stability and accuracy of rotation. The tie rod 42 may be made of a metal material to improve durability and response speed. The clutch control component can be a lever operated manually or an actuator controlled electrically so as to adapt to different use scenes and requirements. Therefore, the technical scheme realizes the compression or release of the clutch wheel 2 through the rotary motion of the clutch fork 41, thereby solving the technical problem of rapid and stable clutch between the clutch wheel 2 and the wheel assembly 11 on the running machine. Compared with the prior art, the scheme simplifies the structure of the clutch operation, improves the convenience and response speed of the operation, and ensures the stability and reliability of the clutch action. The tail end of the clutch shifting fork 41 is directly pressed to the clutch wheel 2, so that a complex transmission mechanism is avoided, the failure rate and the maintenance cost are reduced, and the overall performance and the user experience of the product are improved.

When a fork-type clutch device is used, the clutch elastic restoring member 23 needs to be matched for working. As shown in fig. 3, when the clutch elastic restoring member 23 is engaged with the first clutch assembly, it is constructed as a compression spring provided on an axle between the first and second clutch plates 21 and 22, and the clutch transmission is constructed as a fork-type clutch device capable of pressing the clutch wheel 2 and the first clutch plate 21 fixedly connected thereto toward the second clutch plate 22. Specifically, the arrangement position of the compression spring is located on the axle between the first and second grab discs 21, 22, and its function is to spread the first and second grab discs 21, 22 by elastic force, so that they remain in a disengaged state when they are not acted upon by external force. The shifting fork type clutch device can effectively press the clutch wheel 2 and the first grabbing disc 21 fixedly connected with the clutch wheel to the second grabbing disc 22 through the structural design of the shifting fork type clutch device, so that the clutch wheel 2 and the wheel 10 are linked. Therefore, the technical scheme not only simplifies the structure of the clutch transmission device, but also improves the reliability and efficiency of clutch operation through the cooperation of the shifting fork type clutch device and the pressure spring. Specifically, the arrangement of the compression spring enables the first catch plate 21 and the second catch plate 22 to be automatically disengaged when no external force acts on the discs, so that unnecessary friction and abrasion are avoided. The shifting fork type clutch device can rapidly and accurately press the clutch wheel 2 and the first grabbing disc 21 fixedly connected with the clutch wheel to the second grabbing disc 22 through the structural design of the shifting fork type clutch device, and effective engagement between the clutch wheel 2 and the wheel 10 is ensured. Compared with the prior art, the technical scheme has the advantages of simple structure, reliable operation, high efficiency and the like, and can effectively solve the design problem of the clutch transmission device and the clutch elastic reset part 23 in the resistance clutch structure of the running machine.

As shown in fig. 5, when being matched with the second clutch assembly, the clutch elastic restoring component 23 is constructed as a pressure spring arranged on an axle between the rubber disc 24 and the wheel 10 or between the rubber disc 24 and the clutch wheel 2, and the clutch transmission device is constructed as a shifting fork type clutch device capable of pressing the clutch wheel 2 and the clutch wheel 2 fixedly connected with the clutch wheel towards the wheel 10. The clutch elastic restoring member 23 is provided on the axle between the rubber disc 24 and the wheel 10 or between the rubber disc 24 and the clutch wheel 2 in the form of a compression spring, and the compression spring has the function of expanding and separating the rubber disc 24 from the wheel 10 or the clutch wheel 2 which are not connected with the rubber disc 24, even if the rubber disc 24 and the clutch wheel 2 are separated from each other. The shifting fork type clutch device can effectively press the clutch wheel 2 to the wheel 10 through the structural design, and ensures the linkage between the clutch wheel 2 and the wheel 10. The elastic force of the pressure spring can achieve different resetting effects by adjusting parameters such as the material, the diameter, the length and the like of the pressure spring. Therefore, the technical scheme of the application realizes quick and simple clutch adjustment between the clutch wheel 2 and the wheel 10 by constructing the clutch elastic resetting component 23 as a pressure spring arranged on an axle between the rubber disc 24 and the wheel 10 or between the rubber disc 24 and the clutch wheel 2 and constructing the clutch transmission device as a shifting fork type clutch device. The compression spring has the function of spreading the rubber disc 24 away from the wheel 10 or the clutch wheel 2 which is not connected with the rubber disc, even if the rubber disc and the clutch wheel are separated. The shifting fork type clutch device can effectively press the clutch wheel 2 to the wheel 10 through the structural design, and ensures the linkage between the clutch wheel 2 and the wheel 10. Therefore, through the cooperation of the shifting fork type clutch device and the pressure spring, the structure of the clutch transmission device is simplified, and the reliability and the efficiency of clutch operation are improved. Compared with the prior art, the technical scheme of the application has simpler structure and more convenient operation, and can effectively solve the technical problems of complex resistance clutch structure and inconvenient adjustment of the running machine.

As shown in fig. 4, 6-8, the traction clutch device comprises a pull rope seat 43 fixed on the frame and a traction pull rope 44 connected with the clutch control component. The clutch control part can be a clutch control handle arranged at the upper end of the upright post. The tail end of the traction rope 44 passes through the rope seat 43 to be connected with the pressing plate 14, the clutch elastic reset component 23 presses the pressing plate 14, when the traction rope 44 pulls the pressing plate 14, the clutch wheel 2 is separated from the wheel 10, and when the traction force is removed, the clutch elastic reset component 23 presses the clutch wheel 2 to the wheel 10 so as to enable the clutch wheel 2 and the wheel to synchronously rotate. The traction clutch in this embodiment exhibits an innovative clutch mechanism, the core assembly of which includes a pull-cord seat 43 firmly mounted on the frame, and a traction cord 44 closely connected to the clutch control member. The end of the pull cord 44 passes through the cord seat 43 neatly and is connected with the pressure plate 14 reliably. At the same time, the clutch elastic restoring element 23 plays an important role, which tightly presses the pressure plate 14, ensuring the stability of the device in the inactive state. Specifically, when the clutch control member applies a pulling force to the pressure plate 14 through the pull cord 44, this action triggers the release mechanism of the clutch wheel 2 out of contact with the wheel 10, thereby effecting the release of the clutch. In contrast, once the traction force is withdrawn, the clutch elastic restoring member 23 exerts its elastic restoring function instantly, pushing the pressing plate 14 to press the clutch wheel 2 tightly against the wheel 10, causing both to resume the state of synchronous rotation. As an optimized design strategy, the rope seat 43 is fixed on the frame, which provides a stable fulcrum for pulling the rope 44, and ensures the accuracy and stability of the clutch operation. The use of the pull cord 44 not only simplifies the complexity of the clutching operation, but also significantly increases the response speed and flexibility of the operation. The design of the clutch elastic restoring member 23 further enhances the reliability and automatic restoring capability of the clutch action. In summary, the traction clutch device realizes fast and stable clutch control between the clutch wheel 2 and the wheel 10 through the cooperation of the traction and release of the traction rope 44 and the clutch elastic restoring member 23. Compared with the prior art, the scheme not only simplifies the clutch structure and improves the convenience of operation, but also ensures the stability and reliability of clutch action. Through a direct and efficient clutch mechanism, the failure rate is reduced, and the maintenance cost is reduced, so that the overall performance and user experience of the product are comprehensively improved.

When a traction clutch is used, it is necessary to work in conjunction with the clutch elastic restoring member 23. As shown in fig. 4, when the clutch elastic restoring member 23 is matched with the first clutch assembly, the clutch elastic restoring member is constructed as a pressure spring arranged on an axle outside the clutch wheel 2, and the clutch transmission device is constructed as a traction type clutch device capable of keeping the clutch wheel 2 and the first grab disk 21 fixedly connected with the clutch wheel away from the second grab disk 22. Specifically, the clutch elastic restoring member 23 is a compression spring provided on the axle outside the clutch wheel 2 for providing an elastic force so that the clutch wheel 2 can maintain a coupled state with the wheel 10 when not subjected to an external force. The traction clutch overcomes the elastic force of the compression spring by applying external force, so that the clutch wheel 2 is separated from the wheel 10. When the traction rope 44 pulls the pressing plate 14, the clutch wheel 2 is separated from the wheel 10, and when the traction force is removed, the pressure spring presses the clutch wheel 2 to the wheel 10, so that the clutch wheel and the wheel rotate synchronously. As a preferred embodiment, the traction clutch may also comprise other forms of traction means, for example traction means driven by an electric motor, or traction means realized by a hydraulic or pneumatic system. These variants all enable the separation and coupling of the clutch wheel 2 from the wheel 10 and have different application scenarios and advantages. Therefore, the technical scheme of the application realizes the separation and combination of the clutch wheel 2 and the wheel 10 by arranging the clutch elastic restoring component 23 as a pressure spring on the axle outside the clutch wheel 2 and constructing a traction type clutch device. The compression spring functions to provide a necessary elastic force so that the clutch wheel 2 can maintain a coupled state with the wheel 10 when not subjected to an external force. The traction clutch overcomes the elastic force of the compression spring by applying external force, so that the clutch wheel 2 is separated from the wheel 10. The design ensures that the resistance adjustment of the running machine is more flexible and reliable, and can meet the exercise requirements of different users. Compared with the prior art, the technical scheme of the application has the advantages that firstly, through the combination of the pressure spring and the traction type clutch device, the quick and reliable separation and combination of the clutch wheel 2 and the wheel 10 are realized, and the flexibility and the accuracy of the resistance adjustment of the running machine are improved. And secondly, the traction type clutch device is simple in structure and convenient to operate, can quickly respond to the adjustment requirement of a user, and improves the user experience.

As shown in fig. 8, when engaged with the second clutch assembly, the clutch elastic restoring member 23 is constructed as a compression spring provided on an axle outside the clutch wheel 2, and the clutch transmission is constructed as a traction type clutch device capable of moving the clutch wheel 2 away from the wheel 10. The technical proposal of the application simplifies the structure of clutch adjustment by designing the clutch elastic restoring component 23 as a pressure spring positioned on the axle outside the clutch wheel 2 and adopting a traction type clutch device to control the movement of the clutch wheel 2. This design allows the clutch wheel 2 to be quickly moved away from the wheel 10 by the traction clutch, allowing for quick adjustment of the resistance of the treadmill. The arrangement of the pressure spring ensures that the clutch wheel 2 can automatically reset when not acted by external force, and keeps contact with the wheel 10. The traction clutch overcomes the elastic force of the compression spring by applying external force, so that the clutch wheel 2 and the rubber disc 24 thereon are separated from the wheel 10. The use effect and the mode are basically consistent with the scheme.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives, and variations may be made in the above embodiments by those skilled in the art without departing from the spirit and principles of the utility model.

Claims (13)

1. A resistance clutch structure on a running machine is characterized by comprising a wheel assembly (11) rotatably arranged on a frame (1) and connected with a runway, a clutch wheel (2) coaxially arranged with the wheel assembly (11), and a clutch transmission device connected with a clutch control component, wherein the clutch wheel (2) is connected with a resistance adjusting mechanism, the clutch assembly is arranged between the clutch wheel (2) and a wheel (10) in the wheel assembly (11), the clutch transmission device controls the clutch wheel (2) to be close to or far away from the wheel (10) in the wheel assembly (11), when the clutch wheel (2) is close to the wheel (10), the clutch wheel (2) is linked with the wheel assembly (11) through the clutch assembly, and when the clutch wheel (2) is far away from the wheel (10), the clutch wheel (2) is separated from the wheel assembly (11).

2. The structure of claim 1, wherein a clutch bush (12) is movably arranged on an axle of the wheel assembly (11), the clutch wheel (2) is rotatably arranged on the clutch bush (12) through a bearing (13), and a pressing plate (14) is fixedly connected to the free end of the clutch bush (12) for limiting the bearing (13) and the clutch wheel (2).

3. The resistance clutch structure on the running machine according to claim 2, wherein the clutch assembly comprises a first grabbing disc (21) fixedly connected with the clutch wheel (2), a second grabbing disc (22) connected with the wheel (10), and a clutch elastic reset component (23) for driving the first grabbing disc (21) to approach or separate from the second grabbing disc (22), and the first grabbing disc (21) is closely engaged or separated from the second grabbing disc (22) under the action of the clutch transmission device and the clutch elastic reset component (23).

4. A resistance clutch structure on a running machine according to claim 3, wherein the clutch elastic restoring member (23) is constructed as a compression spring arranged on an axle between the first grab disk (21) and the second grab disk (22), and the clutch transmission device is constructed as a shifting fork type clutch device capable of pressing the clutch wheel (2) and the first grab disk (21) fixedly connected with the clutch wheel towards the second grab disk (22).

5. A resistance clutch structure on a running machine according to claim 3, wherein the clutch elastic reset component (23) is constructed as a pressure spring arranged on an axle outside the clutch wheel (2), and the clutch transmission device is constructed as a traction clutch device capable of keeping the clutch wheel (2) and the first grabbing disc (21) fixedly connected with the clutch wheel away from the second grabbing disc (22).

6. The resistance clutch structure on the running machine according to claim 2, wherein the clutch assembly comprises a rubber disc (24) fixedly connected with the clutch wheel (2) or the wheel (10), and a clutch elastic reset component (23) for driving the clutch wheel (2) to be close to or far away from the wheel (10), and when the clutch wheel (2) presses the wheel (10), the clutch wheel (2) and the wheel (10) are synchronously rotated through the rubber disc (24).

7. The resistance clutch structure on the running machine according to claim 6, wherein a connecting ring (20) is constructed on the inner side of the clutch wheel (2), the rubber disc (24) is sleeved on the connecting ring (20), the rubber disc (24) is constructed in a frustum shape, the end face of the rubber disc (24) facing the wheel (10) is constructed in a rough surface, and the end face of the wheel (10) facing the rubber disc (24) is constructed in a groove matched with the frustum shape of the rubber disc (24).

8. A resistance clutch structure on a running machine according to claim 6, wherein the clutch elastic restoring component (23) is constructed as a pressure spring arranged on an axle between a rubber disc (24) and a wheel (10) or between the rubber disc (24) and a clutch wheel (2), and the clutch transmission device is constructed as a shifting fork type clutch device capable of pressing the clutch wheel (2) and the clutch wheel (2) fixedly connected with the clutch wheel to the wheel (10).

9. A resistance clutch structure on a running machine according to claim 6, wherein the clutch elastic restoring member (23) is constructed as a compression spring provided on an axle outside the clutch wheel (2), and the clutch transmission is constructed as a traction clutch device capable of moving the clutch wheel (2) away from the wheel (10).

10. A resistance clutch structure on a running machine according to claim 4 or 8, wherein the fork-type clutch means comprises a clutch fork (41) rotated on the frame (1), and a pull rod (42) connected to an input end of the clutch fork (41), and a tip end of the clutch control member is connected to the pull rod (42), and when the pull rod (42) is pulled, the clutch fork (41) rotates along its axis point, and the tip end of the clutch fork (41) is pressed against the clutch wheel (2).

11. The resistance clutch structure on the running machine according to claim 5 or 9, wherein the traction clutch device comprises a pull rope seat (43) fixed on the machine frame and a traction pull rope (44) connected with the clutch control component, the tail end of the traction pull rope (44) passes through the pull rope seat (43) to be connected with the pressing plate (14), the clutch elastic reset component (23) presses the pressing plate (14), when the traction pull rope (44) pulls the pressing plate (14), the clutch wheel (2) is separated from the wheel (10), and when traction force is removed, the clutch elastic reset component (23) presses the clutch wheel (2) to the wheel (10) to enable the clutch wheel (10) to synchronously rotate.

12. The resistance clutch structure on a running machine according to claim 1 or 2, wherein the resistance adjusting mechanism comprises a flywheel (30) rotatably arranged on a frame (1) and a magnetic control assembly arranged on a frame beside the flywheel (30), and the flywheel (30) is connected with a clutch wheel (2) through an enhanced transmission assembly.

13. The structure according to claim 12, wherein the flywheel (30) and the clutch wheel (2) are respectively arranged at two sides of the frame (1), the enhanced transmission assembly comprises a first pulley assembly (300) and a second pulley assembly (301), the first pulley assembly (300) comprises a first pulley (31) and a second pulley (32) which are respectively arranged at two sides of the frame, and pulley shafts for connecting the first pulley (31) and the second pulley (32), a third pulley (33) and a fourth pulley (34) which are respectively arranged at the same side of the frame as the second pulley assembly (301), and pulley shafts for connecting the third pulley (33) and the fourth pulley (34), the first pulley (31) and the clutch wheel (2) are connected and synchronized by a belt, the second pulley (32) and the third pulley (33) are connected and synchronized by a belt, and the fourth pulley (34) and a fifth pulley (35) arranged on the flywheel (30) are connected and synchronized by a belt.