CN201940914U - labor saving pliers - Google Patents

Abstract

The utility model relates to a labor-saving cutting nipper, which comprises a first body, the bottom end of which is a first handle part, the top part corresponding to the handle part is a first working part, the first working part is provided with a first assembling part, the side edge of the top part of the first assembling part is provided with a first jaw part, an arc chute is arranged between the first assembling part and the first handle part, a second working part is provided with a second assembling part connected with the first assembling part, the side edge of the top end of the second working part is provided with a second jaw part corresponding to the first jaw part, the bottom of the second assembling part of the second working part is convexly provided with a group of connecting rods, the top end of the handle part is provided with a sliding rod arranged on the arc chute, the second handle part is provided with a sliding groove close to the middle position, the group of connecting rods are arranged on the sliding groove, the sliding rod and the sliding groove are respectively arranged on the arc chute and the sliding groove through the sliding rod and the group of the sliding rod, thereby increasing the force applying arm and increasing the force applying force.

Description

labor saving pliers

technical field

The utility model relates to a pair of scissors, in particular to a labor-saving cutter.

Background technique

Existing pliers tools mainly include two opposite pliers. One end of the pliers is the working end, and the other end is the handle end. The working end can be driven to carry out a clamping action, and because the working end can have different operating modes such as cutting or pressing according to needs, the use of the existing pliers tool is mainly transparent Through the principle of leverage, the working end is regarded as the force arm and the handle end is regarded as the force arm. If the working end needs a greater force, a longer force arm is required than the handle end to achieve this effect. To increase the moment arm, in addition to lengthening the length of the grip rod end, there is another existing method, such as the labor-saving pliers of the Chinese application No. 200620038906.3, which is mainly provided with a floating fulcrum on a working handle, and the design of the floating fulcrum increases the grip. The moment arm of the handle is long, which can further increase the force applied to the working end.

However, although the structure of the existing force-saving pliers can increase the length of its force arm, the moving position of its floating fulcrum is limited, so the effect of the increased force arm is not good, and at the same time, the opening width of the pliers cannot be increased, so It is not much different from existing pliers tools in use.

Utility model content

In order to solve the problems of the prior art, the purpose of the utility model is to provide a labor-saving cutter.

The utility model provides a labor-saving scissors, which includes a first body, the bottom of the first body is a first handle, and the top of the first body is a first working part relative to the handle. The first working part is provided with a first joint part, and the top side of the first joint part is provided with a first jaw part. In addition, a joint is provided between the first joint part and the first handle Arc chute, a second working part, the second working part is set relative to the first working part, and the second working part is provided with a second joint part connected with the first joint part, so that the first joint part A working part and the second working part can produce relative rotational movement, and at the same time, a second jaw is provided on the top side of the second working part opposite to the first jaw, and at the same time, the second working part is positioned on the first jaw. The bottom of the two joints is protruded with a set of connecting rods and a second handle. The top of the handle is provided with a sliding bar sliding on the arc chute, and the second handle is provided with a sliding joint near the middle position. slot, the set of connecting rods is slid in the sliding slot;

Wherein, at least one end of the arc slide groove is provided with a limiting groove;

Wherein, the first connecting part is a disk surface, and a through hole is formed in the center of the disk surface, and at the same time, the second connecting part is also a disk surface opposite to the first connecting part, and The center of the second assembly part is provided with a through hole, and the first assembly part and the through hole of the second assembly part are overlapped and combined with a fixing element, wherein the fixing element is a bolt and a screw The bolt is combined with the cap, the bolt is passed through the through hole of the first joint part and the through hole of the second joint part, and the end is locked with a nut, wherein the fixing element is a rivet.

The beneficial effect of the utility model is that the labor-saving cutter of the utility model can relatively increase its force through the setting of floating fulcrums such as the sliding bar sliding on the arc chute and the set of connecting rods sliding on the sliding slot. The arm can relatively increase the applied force between the first jaw and the second jaw.

Description of drawings

Fig. 1 is a perspective view of a preferred embodiment of the utility model.

Fig. 2 is a three-dimensional exploded view of a preferred embodiment of the utility model.

Fig. 3 is a schematic diagram of the opening action of the preferred embodiment of the present invention.

Fig. 4 is a schematic diagram of a force applying action in a preferred embodiment of the present invention.

Fig. 5 is a schematic diagram of the closing action of the preferred embodiment of the present invention.

Fig. 6 is a schematic diagram of another embodiment of the present invention.

Description of main component symbols

10 first ontology

11 first shank

12 The first working department 121 The first assembly department

122 through hole 123 first jaw

13 arc chute 131 limit slot

20 Second Working Department

21 The second group connection part 211 Through hole

22 The second jaw 23 sets of connecting rods

30 second shank

31 sliding rod 32 sliding groove

40 fixing elements

41 Bolts 42 Nuts

Detailed ways

Please refer to Fig. 1 and Fig. 2, the utility model provides a preferred embodiment of labor-saving scissors, which mainly includes;

A first body 10, the bottom end of the first body 10 is a first handle 11, and the top of the first body 10 is formed with a first working part 12 on the top of the first handle 11. There is a first joint part 121, the first joint part 121 is a disk surface, a through hole 122 is formed in the center of the disk surface, and a first jaw is provided on the top side of the first working part 123. In addition, an arc sliding groove 13 is formed between the first assembly part 121 and the first handle part 11;

A second working part 20, the second working part 20 is arranged relative to the first working part 10, the second working part 20 is provided with a second joint part 21 overlapping with the first joint part 121, the The second assembly part 21 is also a disk surface opposite to the first assembly part 121, and the center of the second assembly part 21 is provided with a through hole 211, so that the first working part 12 and the second The two working parts 20 can produce relative rotational movement. At the same time, a second jaw 22 is provided on the top side of the second working part 20. The second jaw 22 corresponds to the first jaw 122 and can pass through the The rotation between the first working part 12 and the second working part 20 makes the first jaw part 122 approach or move away from the second jaw part 22. A set of connecting rods 23 is protruded from the bottom of the bottom;

A second handle 30, the second handle 30 is a rod body, the top of the rod body is protruded with a slide bar 31 to slide on the arc chute 13, and the second handle 30 is provided with a sliding rod near the middle position Connecting groove 32, the sliding connecting groove 32 is provided for the set of connecting rods 23 to slide.

A fixing element 40, which includes a bolt 41 and a nut 42, which can also be formed by a rivet, the bolt 41 passes through the through hole 122 of the first assembly part 121 and the second assembly part 21 After the through hole 211, the end is locked with a nut 42.

In order to further understand the structural features of the utility model, the use of technical means and the expected effects, the usage of the utility model is described hereby. It is believed that the utility model can have a deeper and more specific understanding, as follows:

Please refer to Fig. 3 , which is a fully open schematic view of the labor-saving scissors of the present invention. At this time, both the first handle 11 and the second handle 30 are moving outward. At this time, the slide bar 31 is located at At the bottom of the arc sliding groove 13, at the same time, the connecting rod 23 is also located at the bottom of the sliding connecting groove 32, and the gap between the first jaw 123 and the second jaw 22 is the largest, and this design can make the The openings of the first jaw 123 and the second jaw 22 can be increased to accommodate the introduction of workpieces with a larger width. Then, please refer to Figures 4 and 5, which are schematic diagrams of the operation of the labor-saving cutters of the present invention. When the first handle 11 and the second handle 30 exert force inward, the sliding rod 31 of the second handle 30 will slide to the top of the arc slide groove 13 with the fixing element 40 as a fulcrum. A moment arm can be produced between the slide bar 31 and the fixing element 40, meanwhile, the slide bar 31 is also a fulcrum, so that a moment arm is also produced between the slide bar 31 and the set of connecting rods 23, and the set of connecting rods 23 will also slide towards the top of the sliding groove 32, through the multiplication effect of the force arm, the applied force of the first handle 11 and the second handle 30 can be added, so that the first handle 11 and the second handle 30 can be added. The force exerted by the first jaw 123 and the second jaw 22 on the workpiece is increased.

Please refer to Fig. 6 again, the utility model provides another embodiment of a kind of labor-saving cutting pliers, its main structure is the same as that of the previous embodiment so it will not be repeated, wherein the top of the arc chute 13 is recessed There is a limit groove 131, which can have a limit effect on the slide bar 31. When the applied force is not large or the operation does not require a large working width, the slide bar 31 can be limited to this limit. In the position slot 131 , a force arm can be generated between the set of connecting rods 32 and the fixing element 40 .

In summary, the utility model has excellent progressive practicability among similar products. At the same time, the technical data of this type of structure has been searched at home and abroad, and no identical or similar structure has been found in the literature. Therefore, the utility model already meets the requirements of a new patent, and the application is filed according to law.

However, the above is only a preferred feasible embodiment of the utility model, so all equivalent structural changes made by using the specification of the utility model and the scope of the patent application should be included in the patent scope of the utility model.

Claims (5)

1. A structure of labor-saving scissors, characterized in that it comprises; A first body, the bottom end of the first body is a first handle, the top of the first body relative to the handle is a first working part, and the first working part is provided with a first assembly part, the top side of the first connecting part is provided with a first jaw part, in addition, an arc chute is provided between the first connecting part and the first handle; A second working part, the second working part is arranged relative to the first working part, and the second working part is provided with a second connecting part connected with the first connecting part, so that the first working part and the first working part The second working part can produce relative rotational movement. At the same time, the top side of the second working part is provided with a second jaw relative to the first jaw. At the same time, the second working part is connected to the second connecting part There is a set of connecting rods protruding from the bottom; A second shank, the top of the shank is provided with a sliding rod slidably arranged on the arc chute, and the second shank is provided with a sliding connection groove near the middle position, and the connecting rod is slidably arranged in the sliding connection groove . 2. The labor-saving cutter according to claim 1, wherein at least one end of the arc sliding groove is provided with a limiting groove. 3. The labor-saving scissors according to claim 1, wherein the first assembly part is a disk surface, and a through hole is provided in the center of the disk surface, and at the same time, the second assembly part is also A disk surface is opposite to the first joint part, and the center of the second joint part is provided with a through hole, and the first joint part and the through hole of the second joint part overlap and form a Fixed elements combined. 4. The labor-saving cutter according to claim 3, wherein the fixing element is a combination of a bolt and a nut, and the bolt passes through the through hole of the first assembly part and the second assembly part. After the through hole in the part, the end is locked with a nut. 5. The labor-saving cutter according to claim 3, wherein the fixing element is a rivet.

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