CN215171767U - Air spring for vehicle - Google Patents
Air spring for vehicle Download PDFInfo
- Publication number
- CN215171767U CN215171767U CN202023161433.5U CN202023161433U CN215171767U CN 215171767 U CN215171767 U CN 215171767U CN 202023161433 U CN202023161433 U CN 202023161433U CN 215171767 U CN215171767 U CN 215171767U
- Authority
- CN
- China
- Prior art keywords
- piston rod
- piston
- outer cylinder
- end cap
- sealed end
- Prior art date
- 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.)
- Expired - Fee Related
Links
- 238000007789 sealing Methods 0.000 claims description 28
- 125000006850 spacer group Chemical group 0.000 claims 2
- 230000013011 mating Effects 0.000 claims 1
- 239000003921 oil Substances 0.000 abstract description 14
- 239000010687 lubricating oil Substances 0.000 abstract description 9
- 238000005299 abrasion Methods 0.000 abstract description 2
- 230000001050 lubricating effect Effects 0.000 abstract description 2
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 12
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000000428 dust Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
Images
Landscapes
- Fluid-Damping Devices (AREA)
Abstract
The utility model relates to the technical field of automobile parts, concretely relates to automobile-used air spring, both ends are the opening form about the outer cylinder, the port is equipped with sealed end cap on it, its lower port is equipped with down sealed end cap, the outer cylinder, sealed end cap forms the piston chamber on and sealed end cap down, the mobilizable configuration of piston rod is in the piston chamber, its lower extreme is equipped with piston assembly, its upper end extends to the outside of sealed end cap, the below of going up sealed end cap is equipped with the uide bushing, be equipped with the oil pocket in the uide bushing, the piston rod passes through in the oil pocket, the upper portion and the lower part of uide bushing are equipped with the lip rubber pad, the lip rubber pad contacts with the piston rod. The piston rod passes through the oil cavity, and lubricating oil is filled in the oil cavity, so that the lubricating oil is prevented from leaking from a gap between the guide sleeve and the piston rod, the lubricating oil can play a lubricating role, the friction force between the piston rod and the guide sleeve is reduced, the abrasion of the piston rod is reduced, and the service life of the piston rod is prolonged.
Description
Technical Field
The utility model relates to an automobile parts technical field, concretely relates to automobile-used air spring.
Background
The gas spring mainly comprises a cylinder barrel, a piston in the cylinder barrel, a piston rod, a valve rod and the like, wherein gas and oil liquid are stored in the cylinder barrel. Because the piston occupies the volume in the cylinder barrel, the piston rod is pressed into the cylinder barrel when the piston works, and the piston axially moves in the cylinder barrel to compress gas so as to enable the piston to reach a working position; when the external force loaded on the piston rod disappears, the gas recovers and expands, the expanded gas pushes the oil to reset the piston, the piston rod is moved out, and the gas spring realizes compression motion and recovery damping motion.
In the prior art, a piston rod in the air spring is in rigid friction with a cylinder body part, so that the piston rod is greatly abraded.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem in this application, the utility model provides an automobile-used air spring.
The utility model provides a following technical scheme: the utility model provides an automobile-used air spring, includes outer cylinder and piston rod, both ends are the opening form about the outer cylinder, and its upper port is equipped with sealed end cap, and its lower port is equipped with down sealed end cap, outer cylinder barrel go up sealed end cap and sealed end cap forms the piston chamber down, the mobilizable configuration of piston rod is in the piston chamber, its lower extreme is equipped with piston assembly, and its upper end extends to go up sealed end cap's the outside, the below of going up sealed end cap is equipped with the uide bushing, be equipped with the oil pocket in the uide bushing, the piston rod passes through in the oil pocket, the upper portion and the lower part of uide bushing are equipped with the lip rubber pad, the lip rubber pad with the piston rod contact.
Preferably, a first sealing ring is arranged between the upper sealing plug and the guide sleeve.
Preferably, the upper part of the outer cylinder barrel is sleeved with a cylindrical dustproof sleeve, the dustproof sleeve is in interference fit with the outer cylinder barrel and is fixed on the outer cylinder barrel, the top end of the dustproof sleeve is provided with a hollow convex round table, and the outer surface of the convex round table is a conical surface.
Preferably, the piston assembly comprises a gasket arranged at the end of the piston rod extending into the cylinder body, a piston ring arranged below the gasket from top to bottom, and a split piston.
Preferably, the lower sealing plug and the outer cylinder barrel are provided with a second sealing ring.
Preferably, an air valve and an air pipe are arranged on the lower sealing plug, the air valve is communicated with the piston cavity, one end of the air pipe is connected with the air valve, and the other end of the air pipe extends to the end face of the lower sealing plug.
Preferably, the lower end face of the piston rod is provided with a bolt hole, and the piston assembly is mounted on the piston rod through matching of a bolt and the bolt hole.
The utility model relates to an automobile-used air spring, its beneficial effect lies in: the piston rod passes through in the oil pocket, it has lubricating oil to fill in the oil pocket, and the lip rubber pad of top and below plays sealed effect, prevents that lubricating oil from spilling from the gap between uide bushing and the piston rod, and lubricating oil can play lubricated effect, has reduced the frictional force between piston rod and the uide bushing to reduce the wearing and tearing of piston rod, increased the life of piston rod.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic structural diagram of the device of the present invention;
FIG. 2 is an enlarged partial schematic view at A of FIG. 1;
labeled as: 1. an outer cylinder barrel; 2. a piston rod; 3. an upper sealing plug; 4. a lower sealing plug; 5. a piston cavity; 6. a piston assembly; 61. a gasket; 62. a piston ring; 63. a split piston; 7. a guide sleeve; 8. a first seal ring; 9. an oil chamber; 10. lip-shaped rubber pads; 11. a dust-proof sleeve; 12. a convex circular truncated cone; 13. a second seal ring; 14. an air valve; 15. an air tube; 16. and (4) bolts.
Detailed Description
The conception, the specific structure and the technical effects of the present invention will be clearly and completely described below in conjunction with the embodiments and the accompanying drawings to fully understand the objects, the schemes and the effects of the present invention. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. It should be noted that, unless otherwise specified, when a feature is referred to as being "fixed" or "connected" to another feature, it may be directly fixed or connected to the other feature or indirectly fixed or connected to the other feature. Further, the description of the upper, lower, left, right, etc. used in the present invention is only with respect to the positional relationship of the respective components of the present invention with respect to each other in the drawings.
The following describes preferred embodiments of the present invention in detail with reference to the accompanying drawings.
As shown in fig. 1 to 2, a gas spring for a vehicle comprises an outer cylinder 1 and a piston rod 2, wherein the upper end and the lower end of the outer cylinder 1 are open, an upper sealing plug 3 is arranged at the upper port of the piston, a lower sealing plug 4 is arranged at the lower port of the piston, a piston cavity 5 is formed by the outer cylinder barrel 1, the upper sealing plug 3 and the lower sealing plug 4, the piston rod 2 is movably arranged in the piston cavity 5, the lower end of the upper sealing plug is provided with a piston component 6, the upper end of the upper sealing plug extends to the outer side of the upper sealing plug 3, a guide sleeve 7 is arranged below the upper sealing plug 3, a first sealing ring 8 is arranged between the upper sealing plug 3 and the guide sleeve 7, an oil cavity 9 is arranged in the guide sleeve 7, the piston rod 2 passes through the oil cavity 9, lip-shaped rubber pads 10 are arranged on the upper portion and the lower portion of the guide sleeve 7, and the lip-shaped rubber pads 10 are in contact with the piston rod 2. The gas used in the gas spring is generally nitrogen, the nitrogen is filled in the piston cavity 5 below the piston assembly 6, when the piston assembly 6 moves downwards, the gas is compressed, so that the compressed gas provides upward resistance, the oil cavity 9 is filled with lubricating oil, the upper lip-shaped rubber pad 10 and the lower lip-shaped rubber pad 10 play a role in sealing, the lubricating oil is prevented from leaking out from a gap between the guide sleeve 7 and the piston rod 2, the lubricating oil can play a role in lubricating, the friction force between the piston rod 2 and the guide sleeve 7 is reduced, the abrasion of the piston rod 7 is reduced, and the service life of the piston rod 7 is prolonged.
The upper portion of the outer cylinder barrel 1 is sleeved with a cylindrical dustproof sleeve 11, the dustproof sleeve 11 is in interference fit with the outer cylinder barrel 1 and is fixed on the outer cylinder barrel 1, a hollow convex circular table 12 is arranged at the top end of the dustproof sleeve 11, and the outer surface of the convex circular table 12 is a conical surface. The piston rod 2 penetrates out of the hollow boss 12, the dustproof sleeve 11 can effectively prevent dust of the air spring, the outer surface of the boss 12 is a conical surface, and the upper end of the boss is in a knife edge shape, so that sundries such as dust attached to the piston rod 2 can be scraped.
The piston assembly 6 comprises a gasket 61 arranged at the end of the piston rod 2 extending into the cylinder, a piston ring 62 arranged below the gasket 61 from top to bottom, and a split piston 63.
And the lower sealing plug 4 and the outer cylinder barrel 1 are provided with a second sealing ring 13. An air valve 14 and an air pipe 15 are arranged on the lower sealing plug 4, the air valve 14 is communicated with the piston cavity 5, one end of the air pipe 15 is connected to the air valve 14, and the other end of the air pipe extends to the end face of the lower sealing plug 4. The second sealing ring 13 can improve the sealing function between the lower sealing plug 4 and the outer cylinder barrel 1, and prevent gas leakage. The air valve 14 comprises a valve seat, a valve clack and a spring, an air inlet pipe is arranged on the valve seat, the valve clack is plugged into the air inlet pipe through the spring, the air inlet pipe is communicated with an air pipe 15, the air pipe 15 is connected with an inflator, the inflator fills air into the air inlet pipe from the air pipe 15, the spring is compressed, so that a gap appears between the valve clack and the air inlet pipe, the air can enter the piston cavity 5, after the air is filled, under the action of the spring, the air inlet pipe is plugged by the valve clack, and the air is sealed in the piston cavity 5.
In addition, the lower end face of the piston rod 2 is provided with a bolt hole, the piston assembly 6 is installed on the piston rod 2 through the matching of a bolt 16 and the bolt hole, the piston assembly 6 is convenient to disassemble, and therefore maintenance is convenient.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The utility model provides an automobile-used air spring, includes outer cylinder and piston rod, its characterized in that, both ends are the opening form about the outer cylinder, and its upper port is equipped with sealed end cap, and its lower port is equipped with sealed end cap down, the outer cylinder go up sealed end cap and sealed end cap forms the piston chamber down, the mobilizable configuration of piston rod is in the piston chamber, its lower extreme is equipped with piston assembly, and its upper end extends to go up sealed end cap's the outside, the below of going up sealed end cap is equipped with the uide bushing, be equipped with the oil pocket in the uide bushing, the piston rod passes through in the oil pocket, the upper portion and the lower part of uide bushing are equipped with the lip rubber pad, the lip rubber pad with the piston rod contact.
2. The vehicular gas spring as set forth in claim 1, wherein a first seal ring is disposed between said upper seal plug and said guide sleeve.
3. The gas spring as claimed in claim 1, wherein a cylindrical dust-proof sleeve is sleeved on the upper portion of the outer cylinder barrel, the dust-proof sleeve is in interference fit with the outer cylinder barrel and is fixed on the outer cylinder barrel, a hollow convex truncated cone is arranged at the top end of the dust-proof sleeve, and the outer surface of the convex truncated cone is a conical surface.
4. The vehicular gas spring as set forth in claim 1, wherein said piston assembly includes a spacer disposed at an end of said piston rod projecting into said outer cylinder tube, a piston ring disposed below said spacer from top to bottom, and a split piston.
5. The vehicular gas spring as claimed in claim 1, wherein the lower seal plug and the outer cylinder are provided with a second seal ring.
6. The gas spring for the vehicle as claimed in any one of claims 1 to 5, wherein the lower sealing plug is provided with a gas valve and a gas pipe, the gas valve is communicated with the piston cavity, one end of the gas pipe is connected to the gas valve, and the other end of the gas pipe extends to the end face of the lower sealing plug.
7. The vehicular gas spring according to claim 1, wherein the lower end face of the piston rod is provided with a bolt hole, and the piston assembly is mounted to the piston rod by mating of a bolt and the bolt hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023161433.5U CN215171767U (en) | 2020-12-23 | 2020-12-23 | Air spring for vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023161433.5U CN215171767U (en) | 2020-12-23 | 2020-12-23 | Air spring for vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215171767U true CN215171767U (en) | 2021-12-14 |
Family
ID=79379691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023161433.5U Expired - Fee Related CN215171767U (en) | 2020-12-23 | 2020-12-23 | Air spring for vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215171767U (en) |
-
2020
- 2020-12-23 CN CN202023161433.5U patent/CN215171767U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4527673A (en) | Multi-purpose fluid seal for movement control dampers and the like | |
| CN101149088A (en) | Shock absorber | |
| CN215171767U (en) | Air spring for vehicle | |
| CN201575164U (en) | Operation rod sealing device of pneumatic baffle valve | |
| CN109751356A (en) | Dampening arrangement | |
| CN209990906U (en) | Sealing element for automobile crane | |
| CN201547168U (en) | Double-layer sealing hydraulic shock absorber | |
| CN211737853U (en) | Automobile shock-absorbing device | |
| CN105673763A (en) | Inflatable type damper guider sealing structure | |
| CN205423673U (en) | Inflatable bumper shock absorber director seal structure | |
| CN111810572A (en) | Can lubricate and have bumper shock absorber of preventing leaking function | |
| CN107575525B (en) | Hydraulic buffer applied in pneumatic environment | |
| CN201382193Y (en) | Valve seat for ball valve and ball valve using same | |
| CN219932818U (en) | Piston rod shock-absorbing structure | |
| CN101517242B (en) | Valve arrangement for a hydrostatic machine | |
| CN209838999U (en) | Hydraulic release bearing with dustproof sealing structure piston | |
| CN200949628Y (en) | Oil sealing guidance tape seal ring assembly mounted on single-cylinder shock absorber | |
| JP2000145860A (en) | Gas spring | |
| CN220434977U (en) | Novel compressor cylinder | |
| JPS6243157Y2 (en) | ||
| CN215370735U (en) | Hydraulic rear shock absorber for motorcycle | |
| CN212744831U (en) | One-way valve guider structure of shock absorber | |
| KR100489424B1 (en) | Sealing device of gas filling part at the gas shock absorber | |
| CN215293405U (en) | Low-noise hydraulic vibration-damping bottom valve and vibration-damper inner cylinder | |
| CN2396240Y (en) | Sealing device for hydraulic vibration damper |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211214 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |