CN215171766U - Gas spring piston assembly - Google Patents
Gas spring piston assembly Download PDFInfo
- Publication number
- CN215171766U CN215171766U CN202023135140.XU CN202023135140U CN215171766U CN 215171766 U CN215171766 U CN 215171766U CN 202023135140 U CN202023135140 U CN 202023135140U CN 215171766 U CN215171766 U CN 215171766U
- Authority
- CN
- China
- Prior art keywords
- ring
- piston rod
- cylinder
- install
- piston
- 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
- 239000000428 dust Substances 0.000 claims abstract description 29
- 238000007789 sealing Methods 0.000 claims abstract description 16
- 210000003437 trachea Anatomy 0.000 abstract description 9
- 239000007789 gas Substances 0.000 description 19
- 239000000203 mixture Substances 0.000 description 10
- 230000009471 action Effects 0.000 description 2
- 239000011261 inert gas Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Images
Landscapes
- Fluid-Damping Devices (AREA)
Abstract
The utility model provides an air spring piston assembly, including cylinder, piston rod and annular base, install the piston rod in the cylinder, be equipped with the ring channel on the piston rod, install annular base in the ring channel, install the gasket in annular base and the ring channel, install the fender ring on the piston rod, install the dust ring on the piston rod, the uide bushing is installed to the below of dust ring, the first sealing washer is installed to the below of uide bushing, the cylinder inner chamber is installed with the piston cover, be equipped with arc annular first on the piston cover, be equipped with arc annular second on the cylinder inner wall, install the holding ring in arc annular first and the arc annular second, install the second sealing washer between piston cover and the cylinder inner wall, the top of piston rod is installed and is connected; install L type trachea in the cylinder, the tracheal one end of L type is installed in cylinder inner chamber bottom, the tracheal other end of L type meets with air feeder.
Description
Technical Field
The utility model belongs to the technical field of the air spring, concretely relates to air spring piston assembly.
Background
The gas spring is an industrial accessory which can play a role in supporting, buffering, braking, height adjustment, angle adjustment and the like. It is composed of the following parts: the device comprises a pressure cylinder, a piston rod, a piston, a sealing guide sleeve and filler inert gas or oil-gas mixture, wherein the in-cylinder control element and the out-cylinder control element refer to a controllable gas spring, a connector and the like. The principle is that inert gas or oil-gas mixture is filled in a closed pressure cylinder, the pressure in a cavity is several times or dozens of times higher than the atmospheric pressure, and the motion of a piston rod is realized by utilizing the pressure difference generated by the cross section area of the piston rod smaller than that of the piston.
For example, a publication No. CN204664274U discloses a piston rod subassembly for gas spring, including the piston rod and the piston that is connected, its characterized in that: the piston comprises an integrated shaft shoulder and a connecting section, wherein the shaft shoulder is provided with a ring groove used for installing a sealing ring along the radial direction, the shaft shoulder facing the connecting section is provided with more than two first flow channels, the first flow channels are communicated with the ring groove, the middle part of the shaft shoulder of the piston is provided with a second flow channel, and the connecting section is provided with an assembling hole; the piston rod with the blind hole on one side is in press connection with an assembly hole in the piston connecting body, a second flow channel on the piston is communicated with the blind hole on the piston rod, a radial damping hole on the piston rod is communicated with the blind hole, an annular clamping groove or at least two clamping grooves are arranged on the piston rod, and a convex block at the end part of the connecting section is clamped in the annular clamping groove or the clamping grooves.
In the prior art, the piston for the air spring can take out oil-gas mixture in the cylinder barrel in the process of stretching and retracting, so that the oil-gas mixture is leaked, and the structure of the piston rod is unstable.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the problems existing in the prior art, the utility model provides an air spring piston assembly, the structure is firm, prevents that the inside oil-gas mixture of cylinder from leaking.
The utility model provides a following technical scheme:
the utility model provides an air spring piston assembly, includes cylinder, piston rod and annular base, install the piston rod in the cylinder, be equipped with the ring channel on the piston rod, install annular base in the ring channel, install the gasket in annular base and the ring channel, install on the piston rod and keep off the ring, install the dust ring on the piston rod, the uide bushing is installed to the below of dust ring, first sealing washer is installed to the below of uide bushing, the piston cover is installed to the cylinder inner chamber, be equipped with arc annular one on the piston cover, be equipped with arc annular two on the cylinder inner wall, install the holding ring in arc annular one and the arc annular two, install the second sealing washer between piston cover and the cylinder inner wall, the joint is installed to the top of piston rod.
Further, the annular base is installed at the bottom of the piston rod, and the baffle ring is located above the annular base.
Furthermore, a triangular ring groove is formed in the dust ring, and the upper end face of the dust ring is flush with the upper end face of the cylinder barrel.
Furthermore, an arc-shaped annular groove I on the piston sleeve and an arc-shaped annular groove II on the inner wall of the cylinder barrel just form an annular groove.
Further, the second sealing ring is located below the positioning ring.
Further, install L type trachea in the cylinder, the tracheal one end of L type is installed in cylinder inner chamber bottom, the tracheal other end of L type meets with air feeder, install the valve on the trachea of L type.
The utility model has the advantages that: a positioning ring is arranged between the cylinder barrel and the piston sleeve, so that the coaxiality of the piston rod and the cylinder barrel is ensured when the piston rod is installed; the outer wall of the piston rod is provided with a dust ring, the dust ring is provided with a triangular ring groove, when the piston rod extends and retracts, the triangular ring groove blocks dust adhered to the outer wall of the piston rod outside and cannot enter the cylinder barrel, and the dust falls into the triangular ring groove, so that the dust can be cleaned regularly; the sealing rings are arranged at multiple positions, so that the oil-gas mixture in the cylinder barrel is prevented from leaking, and the inconvenience in use of operators is avoided.
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 cross-sectional view of the present invention;
fig. 2 is an enlarged view of a portion a of the present invention.
Labeled as: 1. an annular base; 2. a gasket; 3. a second seal ring; 4. a second arc-shaped ring groove; 5. a guide sleeve; 6. a dust ring; 601. a triangular ring groove; 7. a joint; 8. a piston rod; 9. a piston sleeve; 10. a first seal ring; 11. a positioning ring; 12. a first arc-shaped ring groove; 13. a baffle ring; 14. an annular groove; 15. a cylinder barrel; 16. an L-shaped trachea; 17. and (4) a valve.
Detailed Description
As shown in fig. 1 and 2, a gas spring piston assembly, including cylinder 15, piston rod 8 and annular base 1, install piston rod 8 in the cylinder 15, be equipped with ring channel 14 on the piston rod 8, install annular base 1 in the ring channel 14, annular base 1 is installed in the piston rod 8 bottom, install gasket 2 in annular base 1 and the ring channel 14, install on the piston rod 8 and keep off ring 13, keep off ring 13 and be located annular base 1 top, annular base 1 installs in ring channel 14, play a limiting displacement to piston rod 8, prevent piston rod 8 roll-off cylinder 15 in, gasket 2 between annular base 1 and the ring channel 14 plays a guard action, reduce frictional force, make piston rod 8 motion more steady and reliable.
The dust ring 6 is mounted on the piston rod 8, the triangular ring groove 601 is arranged on the dust ring 6, the upper end face of the dust ring 6 is flush with the upper end face of the cylinder barrel 15, when the piston rod 8 extends out of the cylinder barrel 15, external dust can be adhered to the surface of the piston rod 8, the triangular ring groove 601 on the dust ring 6 prevents the dust adhered to the piston rod 8 from entering the cylinder barrel 15, the dust is prevented from polluting oil-gas mixtures in the cylinder barrel 15, the service life is prolonged, and the bottom end of the dust ring 6 can prevent the oil-gas mixtures in the cylinder barrel 15 from leaking; a guide sleeve 5 is arranged below the dust ring 6, and is used for guiding the movement of the piston rod 8, so that the service life of the air spring is prolonged, a first sealing ring 10 is arranged below the guide sleeve 5, a piston sleeve 9 is arranged in the inner cavity of the cylinder barrel 15, a first arc-shaped annular groove 12 is arranged on the piston sleeve 9, a second arc-shaped annular groove 4 is arranged on the inner wall of the cylinder barrel 15, the first arc-shaped annular groove 12 on the piston sleeve 9 and the second arc-shaped annular groove 4 on the inner wall of the cylinder barrel 15 just form a circular groove, and positioning rings 11 are arranged in the first arc-shaped annular groove 12 and the second arc-shaped annular groove 4, so that the coaxiality of the piston rod 8 and the cylinder barrel 15 is ensured, and the structure is more compact and reliable; a second sealing ring 3 is arranged between the piston sleeve 9 and the inner wall of the cylinder barrel 15, the second sealing ring 3 is positioned below the positioning ring 11, and sealing rings are arranged at multiple positions to prevent oil-gas mixture in the cylinder barrel 15 from leaking; a joint 7 is mounted above the piston rod 8.
Install L type trachea 16 in the cylinder 15, the one end of L type trachea 16 is installed in 15 inner chamber bottom ends of cylinder, and L type trachea 16's the other end meets with air feeder, installs valve 17 on the L type trachea 16, inflates the cylinder 15 inner chamber through L type trachea 16, and valve 17 prevents that the interior gas of cylinder 15 from leaking.
When the utility model is used, firstly, the inner cavity of the cylinder barrel is filled with gas through the L-shaped air pipe 16, after the filling is finished, the valve 17 is closed, because the through hole is arranged in the piston rod 8, the sections of the two ends of the piston rod 8 are different, under the action of gas pressure, pressure towards the side with small sectional area is generated, the piston rod 8 extends out of the supporting equipment, when the piston rod 8 extends out, the dust ring 6 prevents the oil-gas mixture in the cylinder 15 from leaking along with the extension of the piston rod 8, meanwhile, the first sealing ring 10 and the second sealing ring 3 are opposite to the gas leakage in the cylinder 15, the positioning ring 11 ensures that the piston rod 8 and the cylinder 15 are coaxial, the guide sleeve 5 plays a role in guiding the piston rod 8 when the piston rod 8 moves, and when the piston rod 8 retracts, dust can adhere to the outer wall of the piston rod 8, and at the moment, the triangular ring groove 601 on the dust ring 6 prevents the dust adhering to the outer wall of the piston rod 8 from entering the cylinder barrel 15.
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 (6)
1. The utility model provides an air spring piston assembly, includes cylinder (15), piston rod (8) and ring base (1), its characterized in that, install piston rod (8) in cylinder (15), be equipped with ring channel (14) on piston rod (8), install ring base (1) in ring channel (14), install gasket (2) in ring base (1) and ring channel (14), install fender ring (13) on piston rod (8), install dust ring (6) on piston rod (8), uide bushing (5) are installed to the below of dust ring (6), first sealing washer (10) are installed to the below of uide bushing (5), piston cover (9) are installed to cylinder (15) inner chamber, be equipped with arc annular (12) on piston cover (9), be equipped with arc annular two (4) on cylinder (15) inner wall, install holding ring (11) in arc annular one (12) and arc annular two (4), install second sealing washer (3) between piston sleeve (9) and cylinder (15) inner wall, joint (7) are installed to the top of piston rod (8).
2. A gas spring piston assembly according to claim 1, characterized in that said annular base (1) is mounted on the bottom of the piston rod (8) and said retainer ring (13) is located above the annular base (1).
3. A gas spring piston assembly according to claim 1, characterized in that said dust ring (6) is provided with a triangular ring groove (601), the upper end surface of said dust ring (6) being flush with the upper end surface of the cylinder barrel (15).
4. A gas spring piston assembly according to claim 1, characterized in that said first arcuate groove (12) in said piston sleeve (9) and said second arcuate groove (4) in the inner wall of said cylinder barrel (15) form exactly one circular groove.
5. A gas spring piston assembly according to claim 1, characterized in that said second seal ring (3) is located below a locating ring (11).
6. A gas spring piston assembly according to claim 1, characterized in that an L-shaped gas pipe (16) is mounted within said cylinder (15), one end of said L-shaped gas pipe (16) is mounted at the bottom end of the inner chamber of the cylinder (15), the other end of said L-shaped gas pipe (16) is connected to a gas supply means, and a valve (17) is mounted on said L-shaped gas pipe (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023135140.XU CN215171766U (en) | 2020-12-23 | 2020-12-23 | Gas spring piston assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023135140.XU CN215171766U (en) | 2020-12-23 | 2020-12-23 | Gas spring piston assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215171766U true CN215171766U (en) | 2021-12-14 |
Family
ID=79379543
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023135140.XU Expired - Fee Related CN215171766U (en) | 2020-12-23 | 2020-12-23 | Gas spring piston assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215171766U (en) |
-
2020
- 2020-12-23 CN CN202023135140.XU patent/CN215171766U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101578451A (en) | Load ring mounting of pumping plunger | |
| KR20060072143A (en) | Sealing device for reciprocating shaft | |
| CN215171766U (en) | Gas spring piston assembly | |
| USRE33715E (en) | Shock absorber | |
| CA1223607A (en) | Pneumatic vehicle suspension unit with air sleeve guide | |
| US20080217127A1 (en) | Shock absorber | |
| KR102298611B1 (en) | buffer | |
| CN214888565U (en) | Shock absorber for automobile cab | |
| CN216200878U (en) | Reliably sealed check valve | |
| CN214146094U (en) | Swing valve oil cylinder | |
| CN206738476U (en) | Sealing device | |
| CN114517819A (en) | Monotube damper assembly and hydraulic rebound stop assembly therefor | |
| US20020078823A1 (en) | Guide for the piston rod of a piston-cylinder assembly | |
| CN110509203B (en) | Integrated bolt device with air tightness detection function for workpiece positioning | |
| CN207879968U (en) | Small-sized nitrogen gas spring clip spring structure | |
| CN215214518U (en) | Gas spring assembly | |
| JPWO2009116155A1 (en) | damper | |
| CN109734042A (en) | Refueling nozzle and fuel-servicing equipment | |
| CN215214517U (en) | Pressure adjustable air spring | |
| JPS6131559Y2 (en) | ||
| CN110953282A (en) | Novel shock absorber | |
| CN215805480U (en) | Internal thread pneumatic shuttle valve | |
| CN215521779U (en) | Guide sealing structure and shock absorber | |
| CN215334141U (en) | Sealing device for reciprocating vehicle shock absorber | |
| CN219953797U (en) | High-sealing hydraulic cylinder |
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 |