CN101589932A - Vacuum cleaner suction head connection structure and vacuum cleaner with the same structure - Google Patents

Abstract

The invention relates to a suction head connection structure of a vacuum cleaner and a vacuum cleaner with the structure. In the connection structure of the vacuum cleaner suction head of the present invention, it includes: a suction head body, a connecting pipe and an extension pipe. The connection pipe is connected between the tip body and the extension pipe, and the connection pipe is provided with a first joint part connected and fixed with the extension pipe at the connection with the extension pipe, and the extension pipe The pipe is provided with a second joint part that is combined with the first joint part at the joint with the connecting pipe so that the extension pipe and the connecting pipe are connected and fixed, covering the first joint part in the An uncoupling portion capable of uncoupling the first and second coupling portions is provided above the connecting pipe. The uncoupling part is provided substantially along the longitudinal direction of the connecting pipe, and has a supporting part pivotally supported on the outer surface of the connecting pipe at one end, and an operating part for operating the uncoupling part at the other end.

Description

Vacuum cleaner suction head connection structure and vacuum cleaner with the same structure

technical field

The invention relates to a vacuum cleaner suction head connection structure and a vacuum cleaner with the structure.

Background technique

In the previous vacuum cleaners, when connecting the floor suction head, the extension tube is usually directly inserted into the connection pipe of the floor suction head, and fixed by the cooperation between the outer diameter and the inner diameter of the two. Attaches to the floor suction head, but movement of the extension tube by the user's hand can cause the connection to loosen. Therefore, it is conceivable to provide fixing pins and through holes on the extension pipe and the connecting pipe respectively, and fix by inserting the extension pipe into the connecting pipe and popping the fixing pins out of the through holes. However, when disassembling, it will cause inconvenience, and the user must bend down, or pick up the floor suction head to release the cooperation between the fixing pin and the through hole.

Contents of the invention

The present invention is made in view of the above problems, and provides a vacuum cleaner suction head connection structure and a vacuum cleaner using the connection structure. The connection structure of the suction head can be operated by the user to release the connection between the fixing pin and the through hole, which greatly improves the convenience of use.

The suction head connection structure of the vacuum cleaner of the present invention includes: a suction head body, a connecting pipe and an extension pipe; the connection pipe is connected between the suction head body and the extension pipe, and the connection pipe is connected to the extension The connecting part of the pipe is provided with a first joint part which is fixedly connected with the extension pipe; the extension pipe is provided with a joint part which is combined with the first joint part at the connection part of the connecting pipe so that the extension pipe and the The connecting pipe is connected to the fixed second joint part; covering the first joint part, a joint release part that can release the mutual joint between the first joint part and the second joint part is arranged on the top of the joint pipe, and the joint The release part is provided substantially along the longitudinal direction of the connection pipe, and has a support part pivotally supported on the outer surface of the connection pipe at one end and an operation part for operating the release part at the other end. With such a configuration, the extension pipe and the connection pipe can be detached by the user operating the coupling release portion, thereby facilitating the operation.

In addition, in the connection structure of the suction head of the vacuum cleaner of the present invention, it is also preferable that the first joint part is a through hole provided on the pipe wall above the connecting pipe; protruding joint pin, and can be interlocked with the through hole, the joint release part protrudes toward the through hole direction of the first joint part, and pushes inward in the radial direction of the connecting pipe Press the thimble of the second joint. This structure can make the connection stable and not easy to fall off.

Furthermore, it is preferable that the coupling releasing portion has elastic means for applying an elastic force between the pipe wall of the connecting tube and the coupling releasing portion to separate the coupling releasing portion from the first coupling portion. Even if the operation part accidentally collides with other objects, the combination is not easily released, preventing misoperation.

In addition, it is preferable that the width of the operation part in the horizontal direction is larger than the pipe diameter of the connecting pipe. By enlarging the area of the operation part and making the operation part a larger pedal, the user can operate it with his feet from any direction, which improves the convenience of use.

In addition, in the connection structure of the suction head of the vacuum cleaner of the present invention, it is also preferable that the operation part is located above the suction head body, and the operation part is operated downward to release the fastening of the first and second joint parts. , the operation part is supported by the suction head body. It can prevent damage to the first and second joint parts caused by excessive force of the user.

And preferably, when the operation part is operated downwards and the operation part is supported by the suction head body, the part of the lower surface of the operation part in contact with the upper surface of the suction head body forms a circular arc corresponding to each other. shape. It can further prevent damage to the first and second coupling parts caused by the user's excessive force, and stabilize the release operation.

In addition, it is preferable that the operation part is bilaterally symmetrical in a direction along the connecting pipe. The user can operate the operation part from any direction, and there will be no difference in the feeling of the action when the release operation is performed from different directions.

In addition, the present invention also provides a vacuum cleaner, which has the connection structure for the suction head of the vacuum cleaner as described above.

Description of drawings

Fig. 1 is an example of the structure of the floor suction head of the vacuum cleaner of the present invention.

Fig. 2 is a schematic diagram of a combined state of the floor suction head shown in Fig. 1 .

Fig. 3 is a top view of the assembled floor suction head and extension pipe of the vacuum cleaner of the present invention.

Fig. 4 is a schematic diagram of the disassembly process of the floor suction head and the extension pipe of the vacuum cleaner of the present invention.

Fig. 5 is an overall perspective view of the vacuum cleaner of the present invention.

Detailed ways

Below, specific embodiments of the present invention will be described in detail in conjunction with the accompanying drawings.

As shown in Figure 1, it is an example of the floor suction head of the vacuum cleaner of the present invention. In the connection structure of the vacuum cleaner head in this embodiment, there is a floor suction head for sucking dust on the floor, a connecting pipe 10 connected to the rear of the floor suction head, and an extension pipe 8 connected to the rear of the connecting pipe 10 . The floor suction head includes a suction head body 1 arranged at its front and a floor suction head arm 2 movably connected with the suction head body 1 , and the floor suction head is connected to the connecting pipe 10 by using the floor suction head arm 2 . An extension pipe 8 is connected to the rear portion of the connecting pipe 10 for the user to hold and push the floor suction head to move on the floor surface for cleaning.

As shown in Figure 1, the connection pipe 10 is provided with a through hole 11 (first joint part) on the part connected with the extension pipe 8, and the extension pipe 8 is provided with a joint pin 9 at the connection part with the connection pipe. The coupling pin 9 protrudes radially outward of the extension pipe 8 and exerts an outward elastic force by a spring, shrapnel, etc. arranged on the inner side of the wall of the connection pipe 10 . When the extension tube 8 is inserted into the connection tube 10, the joint pin 9 is pushed down by the tube wall of the connection tube 10, so that it can be inserted. When the connecting pin 9 reaches the through hole 11 , it bounces up under the action of elastic force, so that the connecting pipe 10 and the extension pipe 8 are fixed to each other through the combination of the connecting pin 9 and the through hole 11 .

Moreover, in the embodiment, above the through hole 11 (and the joint pin 9 combined with it), there is also a joint release part 12, and the joint pin 9 can be pressed down by the joint release part 12, so that the extension tube 8 can be moved from Pull out from the connecting pipe 10, thereby releasing the connection and fixing of the extension pipe 8 and the connecting pipe 10. As shown in Figure 2, it is a cross-sectional view of the combined state. As long as the through hole 11 and the position of the coupling pin 9 on the connecting pipe 10 and the extension pipe 8 are properly set, the length of the extension pipe 8 inserted into the connecting pipe 10 can be determined, and the inner diameter of the connecting pipe 10 and the length of the extension pipe 8 can be determined. The outer diameter is appropriately set so that the connection pipe 10 and the extension pipe 8 can be stably fixed by the combination of the fixing pin 9 and the through hole 11 .

After the user has used it, it is necessary to clean and store the suction head of the vacuum cleaner, so the connecting pipe 10 and the extension pipe 8 need to be disassembled. The joint release part 12 is formed. Next, the configuration of the uncoupling unit 12 will be described in detail.

In this embodiment, the uncoupling portion 12 is provided approximately along the longitudinal direction of the connecting pipe 10, and covers the through hole 11 (and the coupling pin 9 combined therewith), and has a shaft support at the end of the connecting pipe 10 in the longitudinal direction. The supporting portion 13 on the outer surface of the connecting pipe 10 has an operating portion 5 at the other end; a thimble 12 a is provided at a position corresponding to the through hole 11 , and the thimble 12 a protrudes toward the through hole 11 . According to the present embodiment with the above-mentioned structure, as shown in FIG. 2 , pressing the operation part 5 downward from the direction indicated by the arrow A in the figure can make the joint release part 12 rotate around the support part 13 provided at the end thereof as a fulcrum. , so that the thimble 12a is inserted into the through hole 11 in the direction of the through hole 11, the coupling pin 9 is pressed down to release the combination of the through hole 11 and the coupling pin 9, and the extension tube 8 is pulled out from the connecting tube 10.

In addition, for the convenience of operation, a spring 6 (elastic force device) is also provided in the joint releasing portion 12 . In the present embodiment, the spring 6 is provided between the release part and the connection pipe 10 , and applies an elastic force between the connection release part 12 and the connection pipe 10 to separate them from each other. Under the action of the elastic force of the spring 6 , the uncoupling part 12 is lifted up with the support part 13 as a fulcrum, and the thimble 12 a and the operation part 5 are lifted upward. In this state, the thimble 12a leaves the through hole 11 and does not exert pressure on the coupling pin 9 . Any configuration can be used for the structure that restricts the lift-up height of the end side of the operation portion 5 of the coupling release portion 12 . For example, in this embodiment, a through hole is set on the joint release portion 12, and the nut 7 passing through the through hole and vertically screwed into the side wall of the connecting pipe 10 is fixed. The edge of the through hole is used to limit the lifting height of the joint releasing portion 12 . Of course, it is also possible to set relatively protruding hooks on the combination releasing part 12 and the connecting pipe 10, and when the combination releasing part 12 is bounced by the spring 6, the lifting height can be realized by hooking the ends of the two hooks to each other. limits.

In this embodiment, as shown in FIG. 3 , it is a top view of the vacuum cleaner nozzle of this embodiment seen from above. In order to facilitate the operation when the extension pipe 8 and the connecting pipe 10 are detached, the operation part 5 is provided as a pedal (hereinafter referred to as the pedal 5 ) whose width increases toward both sides in the horizontal direction. By making the width of the pedal 5 exceed the diameter of the connecting pipe 10, the user can press down on the pedal 5 with his foot after cleaning the floor, so that the thimble of the joint releasing part 12 pushes down the joint pin 9 to release the extension tube. 8 is fixed with the connection of connecting pipe 10. And as shown in Figure 4, pull out the operation extension tube 8 in the direction shown by arrow B.

In addition, in this embodiment, as shown in FIGS. 1 and 2 , the pedal 5 extends above the floor suction head, that is, reaches above the floor suction head arm 2 . Since the connecting pipe 10 and the floor suction head arm 2 are connected and fixed, the angle between the pedal 5 and the floor suction head arm 2 can be made very small, thereby reducing the angle of the pedal 5 in the horizontal direction, which is convenient for the user to operate the pedal downward 5.

And, in the state where the user presses the pedal 5 to release the thimble 12a from the combination of the through hole 11 and the coupling pin 9, the lower surface of the pedal 5 is supported on the floor suction head (in this embodiment, the floor suction head arm 2). surface. Therefore, the user's operation is stable, and the coupling pin 9 will not be damaged due to the excessive insertion depth of the thimble 12a into the through hole.

Moreover, in the state where the user presses the pedal 5 and the thimble 12a releases the combination of the through hole 11 and the coupling pin 9, the lower surface of the pedal 5 is aligned with the upper surface of the floor suction head (in this embodiment, the floor suction head arm 2). The surfaces become arc-shaped to cooperate with each other. In this way, the force supporting range between the pedal 5 and the floor suction head is increased during the release operation, making the user's operation stable, and ensuring that the joint release part 12 will not be damaged due to stress concentration when the force is applied.

In addition, the present invention also provides a vacuum cleaner using the connection structure of the vacuum cleaner suction head of the present invention, as shown in Figure 5, including the floor suction head, the above connection structure, and the hose 20 connected to the extension pipe and connected to the hose. 20 ends are used for the vacuum cleaner body 30 of vacuum cleaner power. According to the vacuum cleaner of the present invention described above, the user can separate the extension pipe and the connection pipe of the floor suction head from each other through a simple operation, thereby making it convenient to use.

In addition, the present invention is not limited to the drawings and specific embodiments, and those skilled in the art can modify and change the present invention as required without departing from the spirit and scope of the present invention. These modifications and changes all fall within the scope of the present invention.

Claims (8)

1. A vacuum cleaner suction head connection structure, characterized in that, Including: tip body, connecting tube and extension tube; The connecting tube is connected between the tip body and the extension tube, The connection pipe is provided with a first joint part connected and fixed with the extension pipe at the connection point with the extension pipe; The extension tube is provided with a second joint part that is combined with the first joint part at the connection point with the connection pipe so that the extension tube and the connection pipe are connected and fixed; Covering the first joint part, a joint release part that can release the mutual joint between the first joint part and the second joint part is provided above the connecting pipe, The uncoupling part is provided substantially along the length direction of the connecting pipe, and has a supporting part pivotally supported on the outer surface of the connecting pipe at one end and an operating part for operating the uncoupling part at the other end. 2. The vacuum cleaner nozzle connection structure according to claim 1, characterized in that: The first joint part is configured as a through hole provided on the pipe wall above the connecting pipe; The second coupling part is configured as a coupling pin protruding elastically from the surface of the extension tube, and can be engaged with the through hole, The coupling release portion has a thimble that protrudes toward the through hole of the first coupling portion and presses the second coupling portion inwardly in a radial direction of the connecting pipe. 3. The vacuum cleaner suction head connection structure according to claim 1, characterized in that: The uncoupling part further includes elastic means for applying an elastic force between the pipe wall of the connection tube and the uncoupling part to separate the uncoupling part from the first coupling part. 4. The vacuum cleaner suction head connection structure according to claim 1, characterized in that: The width of the operating part in the horizontal direction is larger than the diameter of the connecting pipe. 5. The vacuum cleaner suction head connection structure according to claims 1-4, characterized in that: The operation part is located above the suction head body, and is supported by the suction head body when the operation part is operated downward to release the fastening of the first and second coupling parts. 6. The suction head connection structure of a vacuum cleaner according to claim 5, characterized in that: When the operation part is operated downwards and supported by the suction head body, the parts of the lower surface of the operation part in contact with the upper surface of the suction head body are arc-shaped corresponding to each other. 7. The suction head connection structure of a vacuum cleaner according to claims 1-4, characterized in that: The operation part is left-right symmetrical in a direction along the connecting pipe. 8. A vacuum cleaner, characterized in that: It has the connection structure of the suction head of the vacuum cleaner according to any one of claims 1-7.

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