CN214001433U

CN214001433U - Cam limiting mechanism for automobile seat damping device

Info

Publication number: CN214001433U
Application number: CN202022389403.3U
Authority: CN
Inventors: 俞龙生; 李振中; 朱伟荣; 姜小兵; 钱有涛
Original assignee: Zhejiang Longsheng Auto Parts Technology Co Ltd
Current assignee: Zhejiang Longsheng Auto Parts Technology Co Ltd
Priority date: 2020-10-24
Filing date: 2020-10-24
Publication date: 2021-08-20
Anticipated expiration: 2030-10-24

Abstract

The utility model relates to a cam stop gear for car seat damping device, in order to solve among the prior art damping device can not the altitude mixture control, fill the easy excessive problem of gassing, proposed a technical scheme and be: a cam limiting mechanism for a damping device of an automobile seat comprises a valve, a rotating plate, a cam, a stay cable, a spring, a rotating shaft and a mounting column; the rotating shaft, the inhaul cable and the mounting column are fixed on a shear shank of the automobile seat damping device; the rotating plate is rotatably connected to the rotating shaft; the valve is fixed on the rotating plate; the cam is fixedly connected with the mounting column; a stay cable wire is arranged in the stay cable; one end of the stay cable line is fixed on the stay cable, and the other end of the stay cable line is fixed on the rotating plate; one end of the spring is fixed on the scissor rack, and the other end of the spring is fixed on the rotating plate; the valve cooperates with a cam. The utility model discloses have altitude mixture control function and can avoid the gasbag to fill the gassing excessive.

Description

Cam limiting mechanism for automobile seat damping device

Technical Field

The utility model relates to a cam stop gear for car seat damping device, mainly used car seat's damping device.

Background

The present invention relates to a shock absorbing device for a vehicle seat, and more particularly to a shock absorbing device for a vehicle seat, which is capable of preventing a driver from being in a good driving state. Such shock-absorbing structure can't realize the regulation to seat height, and the working height is single, can't satisfy different crowds ' demand to lack stop gear, the gasbag fills when gassing easy excessive.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the above-mentioned not enough that exists among the prior art, and provide a structural design is reasonable, has height-adjusting function's a cam stop gear for car seat damping device.

The utility model provides a technical scheme that above-mentioned problem adopted is: the cam limiting mechanism for the automobile seat damping device comprises a valve, a rotating plate, a cam, a pull rope, a spring, a rotating shaft and a mounting column; the rotating shaft, the inhaul cable and the mounting column are fixed on a shear shank of the automobile seat damping device; the rotating plate is rotatably connected to the rotating shaft; the valve is fixed on the rotating plate; the cam is fixedly connected with the mounting column; a pull cable wire is arranged in the pull cable, a handle for pulling the pull cable wire is further connected to the pull cable, one end of the pull cable wire is fixed on the handle, and the other end of the pull cable wire is fixed on the rotating plate; one end of the spring is fixed on the scissor rack, and the other end of the spring is fixed on the rotating plate; the valve cooperates with a cam.

Preferably, in the present invention, the cam is fixedly connected to the mounting post through a pin.

Preferably, the cam of the utility model is further provided with a sleeve for connecting the mounting post; and the sleeve is provided with a pin hole for mounting a pin.

Preferably, the valve in the utility model is also connected with the air bag of the automobile seat damping device; and the valve is provided with an air inlet switch for controlling the inflation of the air bag and an air outlet switch for controlling the deflation of the air bag.

Preferably, the utility model discloses in still be equipped with on the valve and be used for connecting the gasbag interface that the gasbag aerifys and be used for connecting the air inlet interface of outside air supply and be used for connecting the gasbag and carry out the exhaust interface of gassing.

Preferably, the rotating plate of the present invention is further provided with a wire hole for connecting a cable wire and a spring hole for connecting a spring.

Preferably, the cam in the utility model is fan-shaped; the cam is respectively provided with an upper limiting inclined plane for preventing the air bag from being excessively inflated and a lower limiting inclined plane for preventing the air bag from being excessively deflated at two ends of the fan-shaped cambered surface.

Preferably, the scissor rack of the utility model comprises an inner scissor rack and an outer scissor rack; the inner scissor frame and the outer scissor frame are arranged in a crossed manner; the inner scissor frame is rotatably connected with the outer scissor frame through the mounting column.

Preferably, in the utility model, the pull cable and the rotating shaft are fixed on the inner scissor frame; the mounting post is fixed on the outer scissor frame.

Compared with the prior art, the utility model, have following advantage and effect: the utility model discloses a cable pulling valve, cooperation cam are to the gasbag fill the gassing and carry out the altitude mixture control of car seat, convenient operation, can adjust the height according to user's self demand, and is more nimble, and the comfort level is high; the utility model discloses set up spacing inclined plane and lower spacing inclined plane on the cam, the gasbag is aerifyd or is bled to certain degree, and the cam can break away from with the valve, can avoid the gasbag to aerify like this or bleed excessively, and it is too hard to aerify excessive meeting and lead to the gasbag rigidity, and the shock attenuation effect is poor, and the comfort is poor, and it is poor that excessive meeting leads to gasbag energy-absorbing shock attenuation effect to bleed.

Drawings

Fig. 1 is a schematic front view of a cam limiting mechanism for a shock absorbing device of an automobile seat according to an embodiment of the present invention.

Fig. 2 is an enlarged view of a portion a in fig. 1.

Fig. 3 is a schematic perspective view of a cam limiting mechanism for a shock absorbing device of an automobile seat according to an embodiment of the present invention.

Fig. 4 is a schematic perspective view of a shock absorbing device for a car seat according to an embodiment of the present invention.

Fig. 5 is a schematic rear view of the valve according to the embodiment of the present invention.

Fig. 6 is a schematic top view of the valve according to the embodiment of the present invention.

Fig. 7 is a schematic perspective view of a valve according to an embodiment of the present invention.

Fig. 8 is a schematic perspective view of a cam according to an embodiment of the present invention.

In the figure: the scissors assembly comprises a valve 1, a rotating plate 2, a cam 3, a pull rope 4, a spring 5, a rotating shaft 6, a mounting column 7, a scissor rack 8, a handle 9, an air bag 10, an air inlet switch 11, an air outlet switch 12, an air bag interface 13, an air inlet interface 14, an air outlet interface 15, a wire hole 21, a spring hole 22, an upper limiting inclined plane 31, a lower limiting inclined plane 32, a sleeve 33, a pin hole 34, a pull rope wire 41, a pin 71, an inner scissor rack 81 and an outer scissor rack 82.

Detailed Description

The present invention will be described in further detail by way of examples with reference to the accompanying drawings, which are illustrative of the present invention and are not intended to limit the present invention.

Examples

Referring to fig. 1 to 8, the cam limiting mechanism for the automobile seat damping device in the present embodiment includes a valve 1, a rotating plate 2, a cam 3, a cable 4, a spring 5, a rotating shaft 6, and a mounting post 7; the rotating shaft 6, the inhaul cable 4 and the mounting column 7 are fixed on a shear shank 8 of the automobile seat damping device; the rotating plate 2 is rotatably connected to the rotating shaft 6; the valve 1 is fixed on the rotating plate 2; the cam 3 is fixedly connected with the mounting column 7; a stay wire 41 is arranged in the stay 4; the pull cable 4 is also connected with a handle 9 for pulling the pull cable wire 41, one end of the pull cable wire 41 is fixed on the handle 9, and the other end is fixed on the rotating plate 2; one end of the spring 5 is fixed on the scissor rack 8, and the other end is fixed on the rotating plate 2; the valve 1 and the cam 3 cooperate. The rotation direction and the rotation angle of the valve 1 are controlled by the cooperation of the inhaul cable 4 and the spring 5; the valve 1 is matched with the cam 3 to control the air bag 10 to inflate and deflate so as to realize the height adjusting function of the automobile seat; the rotation shaft 6 is located between the valve 1 and the cam 3, and the rotation shaft 6 is a rotation center of the valve 1.

The valve 1 in this embodiment is also connected to an airbag 10 of a shock absorbing device for an automobile seat; the valve 1 is provided with an air inlet switch 11 for controlling the air inflation of the air bag 10 and an air outlet switch 12 for controlling the air deflation of the air bag 10; the valve 1 is also provided with an air bag interface 13 for connecting the air bag 10 to inflate, an air inlet interface 14 for connecting an external air source and an air outlet interface 15 for connecting the air bag 10 to deflate; the rotating plate 2 is further provided with a wire hole 21 for connecting the stay wire 41 and a spring hole 22 for connecting the spring 5.

The cam 3 in the embodiment is fixedly connected with the mounting column 7 through a pin 71; the cam 3 is also provided with a sleeve 33 for connecting the mounting post 7; the sleeve 33 is provided with a pin hole 34 for mounting the pin 71; the cam 3 is fan-shaped; the cam 3 is provided with an upper limit inclined surface 31 for preventing the air bag 10 from being excessively inflated and a lower limit inclined surface 32 for preventing the air bag 10 from being excessively deflated at both ends of the fan-shaped arc surface, respectively. An upper limit inclined surface 31 and a lower limit inclined surface 32 are arranged on the cam 3, the air bag 10 is inflated or deflated to a certain degree, the cam 3 can be separated from the valve 1, and thus the excessive inflation or deflation of the air bag 10 can be avoided.

Scissor frame 8 in this embodiment includes an inner scissor frame 81 and an outer scissor frame 82; the inner scissor frame 81 and the outer scissor frame 82 are arranged crosswise; the inner scissor frame 81 is rotatably connected with the outer scissor frame 82 through the mounting post 7; the guy cable 4 and the rotating shaft 6 are fixed on the inner scissor frame 81; the mounting posts 7 are fixed to the outer scissor frame 82.

In the operation of the embodiment, the height adjusting process comprises a working height raising step and a working height reducing step.

The working height raising step comprises:

the method comprises the following steps: the handle 9 is pulled upwards, the rotating plate 2 is pulled through a cable wire 41 in the cable 4, the rotating plate 2 rotates anticlockwise around the rotating shaft 6, the rotating plate 2 rotates and drives the valve 1 to rotate anticlockwise, the air inlet switch 11 on the valve 1 is close to the cam 3, and the air bag 10 starts to inflate when the cam 3 is in contact with the air inlet switch 11 and the air inlet switch 11 is opened;

step two: after the air bag 10 is inflated to a preset position, the handle 8 is sent downwards for a certain distance, the rotating plate 2 rotates clockwise around the rotating shaft 6 under the pulling action of the spring 5, so that the cam 3 is separated from the air inlet switch 11, at the moment, the valve 1 is not in contact with the cam 3, and the air bag 10 stops inflating;

step three: in the process of inflating the air bag 10, the contact point of the cam 3 and the air inlet switch 11 continuously moves towards the upper limit inclined plane 31, if the air inlet switch 11 is continuously inflated to raise the working height after contacting the upper limit inclined plane 31, the air inlet switch 11 is separated from the cam 3, the air bag 10 stops inflating, and at the moment, the working height reaches the maximum set value.

The working height reducing step includes:

the method comprises the following steps: the handle 9 is pressed downwards, the stay cable wire 41 in the stay cable 4 does not have pulling force on the rotating plate 2 any more, the rotating plate 2 rotates clockwise around the rotating shaft 6 under the pulling action of the spring 5, the rotating plate 2 rotates and drives the valve 1 to rotate clockwise, so that the exhaust switch 12 on the valve 1 is close to the cam 3, until the cam 3 is contacted with the exhaust switch 12, the exhaust switch 12 is opened, and the air bag 10 begins to deflate;

step two: after the air bag 10 is deflated to a preset position, the handle 8 is pulled upwards for a certain distance, so that the cam 3 is separated from the exhaust switch 12, the valve 1 is not in contact with the cam 3, and the air bag 10 stops deflating;

step three: in the process of deflating the air bag 10, the contact point of the cam 3 and the exhaust switch 12 continuously moves towards the lower limit inclined plane 32, if the exhaust switch 12 is continuously deflated after contacting the lower limit inclined plane 32 to reduce the working height, the exhaust switch 12 is separated from the cam 3, the air bag 10 stops deflating, and the working height reaches the minimum set value at the moment.

The preset position in the embodiment is a body feeling suitable position set by a user according to the self condition; in the embodiment, the valve 1 and the cam 3 are matched to control the inflation and deflation of the air bag 10, so that the height adjusting function of the automobile seat is realized.

In addition, it should be noted that the specific embodiments described in the present specification may be different in the components, the shapes of the components, the names of the components, and the like, and the above description is only an example of the structure of the present invention. All the equivalent changes or simple changes made according to the structure, characteristics and principle of the utility model are included in the protection scope of the utility model. Various modifications, additions and substitutions may be made by those skilled in the art without departing from the scope of the invention as defined in the accompanying claims.

Claims

1. A cam limiting mechanism for a shock absorption device of an automobile seat comprises a stay cable (4), a spring (5), a rotating shaft (6) and a mounting column (7); the device is characterized by also comprising a valve (1), a rotating plate (2) and a cam (3); the rotating shaft (6), the inhaul cable (4) and the mounting column (7) are fixed on a shear shank (8) of the automobile seat damping device; the rotating plate (2) is rotatably connected to the rotating shaft (6); the valve (1) is fixed on the rotating plate (2); the cam (3) is fixedly connected with the mounting column (7); a stay cable wire (41) is arranged in the stay cable (4); the pull cable (4) is also connected with a handle (9) for pulling the pull cable wire (41); one end of the pull rope wire (41) is fixed on the handle (9), and the other end is fixed on the rotating plate (2); one end of the spring (5) is fixed on the scissor rack (8), and the other end of the spring is fixed on the rotating plate (2); the valve (1) is matched with the cam (3).

2. The cam limit mechanism for a shock absorbing device of an automobile seat as set forth in claim 1, wherein the cam (3) is fixedly connected to the mounting post (7) by a pin (71).

3. The cam limit mechanism for the shock absorbing device of the automobile seat as claimed in claim 2, wherein the cam (3) is further provided with a sleeve (33) for connecting with the mounting post (7); the sleeve (33) is provided with a pin hole (34) for mounting a pin (71).

4. The cam limit mechanism for the shock absorbing device of the automobile seat as claimed in claim 1, wherein the valve (1) is further connected with an air bag (10) of the shock absorbing device of the automobile seat; the valve (1) is provided with an air inlet switch (11) for controlling the inflation of the air bag (10) and an air outlet switch (12) for controlling the deflation of the air bag (10).

5. The cam limit mechanism for the shock absorption device of the automobile seat is characterized in that an air bag interface (13) used for connecting an air bag (10) for inflation, an air inlet interface (14) used for connecting an external air source and an air outlet interface (15) used for connecting the air bag (10) for deflation are further arranged on the valve (1).

6. The cam limit mechanism for a shock-absorbing device of an automobile seat as set forth in claim 1, wherein the rotating plate (2) is further provided with a wire hole (21) for connecting the cable wire (41) and a spring hole (22) for connecting the spring (5).

7. The cam limit mechanism for a shock-absorbing device of an automobile seat as set forth in claim 1, wherein the cam (3) is fan-shaped; the two ends of the fan-shaped cambered surface of the cam (3) are respectively provided with an upper limiting inclined surface (31) for preventing the air bag (10) from being excessively inflated and a lower limiting inclined surface (32) for preventing the air bag (10) from being excessively deflated.

8. The cam limit mechanism for shock absorbing device of car seat according to claim 1 characterized in that said scissors-frame (8) comprises an inner scissors-frame (81) and an outer scissors-frame (82); the inner scissor frame (81) and the outer scissor frame (82) are arranged in a crossed manner; the inner scissor frame (81) is rotatably connected with the outer scissor frame (82) through a mounting column (7).

9. The cam limit mechanism for the shock absorbing device of the car seat as claimed in claim 8, wherein the cable (4) and the rotation shaft (6) are fixed on an inner scissor frame (81); the mounting post (7) is fixed on the outer scissor frame (82).