CN216618363U - Air compression shock absorber - Google Patents
Air compression shock absorber Download PDFInfo
- Publication number
- CN216618363U CN216618363U CN202220015349.2U CN202220015349U CN216618363U CN 216618363 U CN216618363 U CN 216618363U CN 202220015349 U CN202220015349 U CN 202220015349U CN 216618363 U CN216618363 U CN 216618363U
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- CN
- China
- Prior art keywords
- air cavity
- air
- piston rod
- shock absorber
- cylinder body
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 230000035939 shock Effects 0.000 title claims abstract description 21
- 239000006096 absorbing agent Substances 0.000 title claims abstract description 20
- 230000006835 compression Effects 0.000 title claims abstract description 16
- 238000007906 compression Methods 0.000 title claims abstract description 16
- 238000007789 sealing Methods 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims abstract description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 5
- 230000004308 accommodation Effects 0.000 abstract 1
- 230000003139 buffering effect Effects 0.000 description 4
- 241000227287 Elliottia pyroliflora Species 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
Images
Abstract
The utility model discloses an air compression shock absorber which comprises a cylinder body, a sealing head, a piston rod and a cylinder body cover. A second air cavity is formed between the outer wall of the piston rod and the inner wall of the cylinder body; the piston is internally provided with a third air cavity. The second air cavity and the third air cavity are connected through the hole. When the piston rod rebounds, the gas in the second air cavity can be compressed first, and then part of the gas in the second air cavity can be pressed into the third air cavity gradually, so that the rebounding speed of the piston rod can be reduced, and the comfort level is improved. When the fourth air cavity that sets up in the piston rod communicates with the third air cavity, have bigger gas accommodation space, the cushioning effect is better, and the comfort level is higher. The hole is the reducing hole, and the internal diameter that is close to third air cavity one side is less, and the internal diameter that keeps away from third air cavity one side is great, therefore continuous in-process piston rod's rebound amplitude fluctuation can be less from top to bottom, has further improved the comfort level.
Description
Technical Field
The utility model relates to the technical field of shock absorbers, in particular to an air compression shock absorber.
Background
The air compression shock absorber is a shock absorber which can absorb shock through compressed air, has the advantages of low noise, long service life and the like, and is widely applied. Most air compression shock absorbers are directly rebounded when rebounding, so that the rebounding speed of the piston rod is high, and the buffering effect is poor. Especially, in the process of continuous up-and-down vibration of the automobile or motorcycle, the feeling of the driver and the passenger is not good.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present invention is directed to the defects in the prior art, and the main object of the present invention is to provide an air compression damper, which can rebound in stages during rebound, and slow down the rebound speed of a piston rod, thereby overcoming the disadvantages in the prior art.
In order to achieve the purpose, the utility model adopts the following technical scheme:
the application provides an air compression shock absorber, which comprises a cylinder body, wherein a first air cavity is arranged in the cylinder body; the first air valve is communicated with the first air cavity; a sealing head is sleeved in the opening of the first air cavity; one end of the piston rod is connected with a piston, a cylinder cover covers the opening of the first air cavity, the piston rod penetrates through a sliding hole in the cylinder cover, and the piston slides back and forth in the first air cavity; a second air cavity is formed between the outer wall of the piston rod and the inner wall of the cylinder body; a third air cavity is arranged in the piston; the second inflating valve is communicated with the second air cavity; the second air chamber and the third air chamber are connected through the hole.
Preferably, a fourth air cavity is arranged in the piston rod, and the third air cavity is connected with the fourth air cavity.
Preferably, the hole is a variable diameter hole; wherein, the inner diameter of one side close to the third air cavity is smaller, and the inner diameter of one side far away from the third air cavity is larger.
Preferably, the second air cavity and the second valve mouth are communicated together through an air ring.
Furthermore, a dustproof oil seal is arranged in the sliding hole.
Furthermore, the first valve and the second valve are both provided with a valve cap.
Furthermore, the outer side end of the cylinder body and the outer side end of the piston rod are both provided with copper sleeves.
Further, the sealing head is provided with a flange, and the flange is pressed on the opening edge of the second air cavity by the inner wall of the cylinder cover.
Compared with the prior art, the air compression shock absorber has obvious advantages and beneficial effects, and particularly, according to the technical scheme, the air compression shock absorber comprises a cylinder body, a sealing head, a piston rod and a cylinder body cover. A second air cavity is formed between the outer wall of the piston rod and the inner wall of the cylinder body; the piston is internally provided with a third air cavity. Second air cavity and third air cavity through the hole link to each other, therefore when the piston rod kick-backs, the gas of second air cavity can be compressed earlier, then partial gas in the second air cavity can be impressed the third air cavity gradually, can slow down the rebound speed of piston rod, has improved the comfort level.
When the fourth air cavity is arranged in the piston rod and the third air cavity is communicated with the fourth air cavity, the piston rod has a larger air accommodating space, and the buffering effect is softer.
The hole is a reducing hole; wherein, the inner diameter of one side close to the third air cavity is smaller, and the inner diameter of one side far away from the third air cavity is larger. The design can ensure that the rebound amplitude fluctuation of the piston rod is small in the continuous up-and-down vibration process of the automobile or the motorcycle, and is favorable for improving the comfort level.
To more clearly illustrate the structural features and effects of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present invention.
FIG. 2 is an exploded view of an embodiment of the present invention.
FIG. 3 is a cross-sectional view of the compressed state of the embodiment of the present invention.
FIG. 4 is a cross-sectional view illustrating a rebound state of the present invention.
The attached drawings indicate the following:
10. cylinder body 11 and first air cavity
12. First valve mouth 13 and sealing head
14. Flange 15, second valve
16. Gas ring 17, gas channel
18. Dustproof oil seal 19 and copper sleeve
20. Piston rod 21, fourth air chamber
22. Piston 23 and cylinder cover
25. Second air chamber 26, third air chamber
27. Hole 28, air nozzle cap.
Detailed Description
Referring to fig. 1 to 4, a structure of a preferred embodiment of the present invention is shown, which is an air compression damper.
Wherein, second air cavity 25 and third air cavity 26 link to each other through hole 27, and when piston rod 20 rebounded, the gas of second air cavity 25 can be compressed earlier, and then some gas in second air cavity 25 can be impressed into third air cavity 26 gradually, has slowed down piston rod 20's rebound speed, has improved the comfort level. When the fourth air cavity 21 arranged in the piston rod 20 is communicated with the third air cavity 26, the fourth air cavity 21 and the third air cavity 26 are matched to contain more air, so that the buffer effect is better, and the comfort is better.
The application provides an air compression shock absorber, which comprises a cylinder body 10, wherein a first air cavity 11 is arranged in the cylinder body 10; the first air valve 12 is communicated with the first air cavity 11; a sealing head 13 is sleeved in the opening of the first air cavity 11; one end of the piston rod 20 is connected with a piston, a cylinder cover 23 covers the opening of the first air cavity 11, the piston rod 20 passes through a sliding hole on the cylinder cover 23, and the piston slides back and forth in the first air cavity 11; a second air cavity 25 is formed between the outer wall of the piston rod 20 and the inner wall of the cylinder body 10; a third air cavity 26 is arranged in the piston; the second air valve 15 is communicated with the second air cavity 25; the second air chamber 25 and the third air chamber 26 are connected through a hole 27. Gas is injected into the first gas chamber 11 from the first valve 12, gas is injected into the second gas chamber 25 from the second valve 15, and part of the gas in the second gas chamber 25 enters the third gas chamber 26 from the holes 27. Further, the first valve mouth 12 and the second valve mouth 15 are both provided with a valve mouth cap 28. When the air pressure on the left side and the air pressure on the right side are adjusted to the design values, the first valve 12 and the second valve 15 are protected by the valve caps 28. The sealing head 13 can seal the second air chamber 25 to prevent air leakage. In the compressed state, the piston compresses the gas in the first gas chamber 11. During the resilience state, the gas in the first air cavity 11 releases pressure, the piston compresses the gas in the second air cavity 25, at this time, the gas in the second air cavity 25 is compressed firstly, then part of the gas in the second air cavity 25 is pressed into the third air cavity 26 gradually, the resilience speed of the piston rod 20 can be reduced, and the comfort level is improved.
Preferably, a fourth air chamber 21 is provided in the piston rod 20, and the third air chamber 26 is connected to the fourth air chamber 21. When the third air chamber 26 and the fourth air chamber 21 are communicated, the chamber can be larger, and more air can be accommodated, so that the rebound speed of the piston rod 20 can be softer, and the buffering effect is better and more comfortable.
Preferably, the holes 27 may be one, two or more. The number and position of the holes 27 can be set according to the use scene.
Preferably, the hole 27 is a reducing hole; wherein the inner diameter of the side close to the third air chamber 26 is smaller and the inner diameter of the side away from the third air chamber 26 is larger. This design allows the gas in the second gas chamber 25 to enter the third gas chamber 26 relatively quickly, while the gas in the third gas chamber 26 returns to the second gas chamber 25 relatively slowly. Therefore, the structure of the hole 27 can reduce the rebound amplitude fluctuation of the piston rod 20 in the continuous up-and-down vibration process of the automobile or the motorcycle, and is beneficial to improving the comfort level. The reducing hole can be a cone or a circular truncated cone structure or a channel formed by combining a cone and a cylinder.
Preferably, the second air chamber 25 and the second valve 15 are communicated together through an air ring 16. The gas ring 16 is provided with gas channels 17 inside. The second valve 15 is communicated with the second air cavity 25 through the air channel 17, so that the pressure of the second valve 15 can be reduced, and the service life of the second valve 15 is prolonged.
Further, the sliding hole is provided with a dust-proof oil seal 18, which can effectively prevent dust and foreign matters from entering the second air cavity 25, and can protect the air compression damper.
Further, the outer side end of the cylinder 10 and the outer side end of the piston rod 20 are both provided with a copper sleeve 19. The copper bush 19 is preferably a plain bearing. The copper bush 19 can reduce friction force, so that the air compression damper can flexibly rotate during installation, and the abrasion degree of the connecting part of the air compression damper is reduced.
Further, the sealing head 13 has a flange 14 thereon, and the flange 14 is pressed against an opening edge of the second air chamber 25 by an inner wall of the cylinder head 23. When the cylinder cover 23 is screwed on the cylinder body 10, the flange 14 can be pressed tightly at the opening edge of the second air cavity 25 by skillfully utilizing the inner wall of the cylinder cover 23, thereby achieving the sealing effect and having very simple structure.
In conclusion, the present invention is designed with the focus that the second air chamber 25 formed between the outer wall of the piston rod 20 and the inner wall of the cylinder 10 communicates with the third air chamber 26 inside the piston. When the piston rod 20 rebounds, the gas in the second air chamber 25 will be compressed first, and then part of the gas in the second air chamber 25 will be gradually pressed into the third air chamber 26, so that the rebounding speed of the piston rod 20 can be reduced, and the comfort level and the buffering effect are improved. When the fourth air chamber 21 in the piston rod 20 communicates with the third air chamber 26, there is a larger air accommodating space, so the rebound speed of the piston rod 20 can be more gentle, and the cushioning effect is better and more comfortable.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so that any minor modifications, equivalent changes and modifications made to the above embodiment according to the technical spirit of the present invention are within the technical scope of the present invention.
Claims (8)
1. An air compression shock absorber comprises a cylinder body, wherein a first air cavity is arranged in the cylinder body; the first air valve is communicated with the first air cavity; a sealing head is sleeved in the opening of the first air cavity; one end of the piston rod is connected with a piston, a cylinder body cover covers the opening of the first air cavity, the piston rod penetrates through a sliding hole in the cylinder body cover, and the piston slides back and forth in the first air cavity; the method is characterized in that: a second air cavity is formed between the outer wall of the piston rod and the inner wall of the cylinder body; a third air cavity is arranged in the piston; the second inflating valve is communicated with the second air cavity; the second air chamber and the third air chamber are connected through the hole.
2. The pneumatic shock absorber according to claim 1, wherein: and a fourth air cavity is arranged in the piston rod and connected with the third air cavity.
3. The pneumatic shock absorber according to any one of claims 1-2, wherein: the hole is a reducing hole; wherein, the inner diameter of one side close to the third air cavity is smaller, and the inner diameter of one side far away from the third air cavity is larger.
4. The pneumatic shock absorber according to claim 1, wherein: the second air chamber and the second valve are communicated together through an air ring.
5. The pneumatic shock absorber according to claim 1, wherein: and a dustproof oil seal is arranged in the sliding hole.
6. The pneumatic shock absorber according to claim 1, wherein: and the first valve nozzle and the second valve nozzle are both provided with a valve cap.
7. The pneumatic shock absorber according to claim 1, wherein: and the outer side end of the cylinder body and the outer side end of the piston rod are both provided with copper sleeves.
8. The pneumatic shock absorber according to claim 1, wherein: the sealing head is provided with a flange which is pressed by the inner wall of the cylinder cover at the opening edge of the second air cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220015349.2U CN216618363U (en) | 2022-01-05 | 2022-01-05 | Air compression shock absorber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220015349.2U CN216618363U (en) | 2022-01-05 | 2022-01-05 | Air compression shock absorber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216618363U true CN216618363U (en) | 2022-05-27 |
Family
ID=81688014
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220015349.2U Active CN216618363U (en) | 2022-01-05 | 2022-01-05 | Air compression shock absorber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216618363U (en) |
-
2022
- 2022-01-05 CN CN202220015349.2U patent/CN216618363U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231120 Address after: No. 52 Shenshan South Street, Baiyun District, Guangzhou City, Guangdong Province, 510000 Patentee after: Liu Yongzhong Address before: 410201 room 8419, floor 4, building 3, No. 369, Section 1, Xiangjiang North Road, Qingzhuhu street, Kaifu District, Changsha City, Hunan Province Patentee before: Changsha chucheng Technology Co.,Ltd. |