CN203856942U - Anti-oil-leakage shock absorber - Google Patents
Anti-oil-leakage shock absorber Download PDFInfo
- Publication number
- CN203856942U CN203856942U CN201420277601.2U CN201420277601U CN203856942U CN 203856942 U CN203856942 U CN 203856942U CN 201420277601 U CN201420277601 U CN 201420277601U CN 203856942 U CN203856942 U CN 203856942U
- Authority
- CN
- China
- Prior art keywords
- oil
- oil cylinder
- groove
- shell
- guide bearing
- 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
Abstract
The utility model discloses an anti-oil-leakage shock absorber. According to the technical scheme, the anti-oil-leakage shock absorber is characterized by comprising a shell, a cylinder, a piston shaft, a bottom valve, a guide bearing, an oil seal base, and a piston. The shell and the cylinder are coaxial. The bottom valve is disposed at the bottom of the cylinder. The piston is disposed at the lower end of the piston shaft. The guide bearing sleeves the piston shaft. The lower portion of the guide bearing is in interference fit with the cylinder; the upper portion of the guide bearing is in interference fit with the shell. The oil seal base is disposed on the upper portion of the guide bearing and is in interference fit with the shell. The inner wall of the cylinder is provided with a groove. Springs and sliders which are slidable are arranged in the groove. One end of every spring is connected with one end, facing the bottom valve, of the groove; the other end of each spring is connected with each slider. A chamber is arranged between the cylinder and the shell. The sidewall of the chamber is provided with oil outlets communicated with the groove. The anti-oil-leakage shock absorber has the advantages interior pressure of the cylinder can be effectively reduced and oil leakage is prevented.
Description
Technical field
The utility model relates to a kind of vibration damper, and more particularly, it relates to a kind of anti-oil leakage damper.
Background technique
Vibration damper is a part of part very important in vehicle; and vibration damper in use often there will be oil leakage phenomenon, main cause be in-oil cylinder oil when pressure is large, be easily penetrated into oil sealing base place; cause oil sealing base leakage of oil, thereby make vibration damper lose the function of damping.
Model utility content
The deficiency existing for prior art, the purpose of this utility model is to provide a kind of vibration damper of oil-leakage-prevention.
For achieving the above object, the utility model provides following technological scheme: a kind of anti-oil leakage damper, comprise shell, oil cylinder, piston shaft, bottom valve, guide bearing, oil sealing base and piston, described shell is coaxial with oil cylinder, the bottom of described oil cylinder is provided with bottom valve, described piston shaft lower end is provided with piston, described guide bearing is sheathed on piston shaft, the bottom of described guide bearing and oil cylinder interference fit, top and shell interference fit, the top of described guide bearing is provided with oil sealing base, described oil sealing base and shell interference fit, the inwall of described oil cylinder is provided with groove, in described groove, be provided with the slide block of spring and slip, one end of described spring is connected with one end of the relative bottom valve of groove, the other end of described spring is connected with slide block, between described oil cylinder and shell, be provided with cavity, the sidewall of described cavity is provided with draining hole, described draining hole communicates with groove.
By adopting technique scheme, when in-oil cylinder oil pressure is excessive, slide block can slide towards the direction of spring, thereby cause spring compressed, after the distance of slide block slip one end, the meeting of draining hole and oil pocket inside communicate, so a part of oil will and flow in cavity by draining hole, and in-oil cylinder like this pressure is also reduced, when in-oil cylinder pressure decreased, spring will promote slide block and slide, slide block will be blocked draining hole, oil in oil pocket also cannot flow in cavity, can effectively reduce in-oil cylinder pressure like this, prevent that oil is penetrated into oil sealing base place, improve the working life of vibration damper.
The utility model is further set to: described vibration damper also comprises the collar that is provided with a plurality of through holes, and the described collar is enclosed within on bottom valve, is positioned at bottom valve and oil cylinder joint, with oil cylinder interference fit.
By adopting technique scheme, due to the existence of the collar, can guarantee between piston shaft and oil cylinder coaxial, thereby make the service behaviour of vibration damper more stable.
The utility model is further set to: the sidewall of described slide block is provided with annular groove, in described annular groove, is provided with O-ring seals, and described O-ring seals and groove are sealed and matched.
By adopting technique scheme, increase the sealing between slide block and groove.
Accompanying drawing explanation
Fig. 1 is the utility model anti-oil leakage damper embodiment's structural representation;
Fig. 2 is the partial enlarged drawing of A in Fig. 1.
Reference character: 1, oil sealing base; 2, piston shaft; 3, guide bearing; 4, shell; 5, oil cylinder; 6, piston; 7, bottom valve; 8, the collar; 9, slide block; 10, spring; 11, draining hole; 12, annular groove; 13, O-ring seals; 14, groove; 15, cavity.
Embodiment
Referring to figs. 1 through Fig. 2, the utility model anti-oil leakage damper embodiment is described further.
A kind of anti-oil leakage damper, comprise shell 4, oil cylinder 5, piston 6 axles 2, bottom valve 7, guide bearing 3, oil sealing base 1 and piston 6, described shell 4 is coaxial with oil cylinder 5, the bottom of described oil cylinder 5 is provided with bottom valve 7, described piston 6 axle 2 lower ends are provided with piston 6, described guide bearing 3 is sheathed on piston shaft 2, the bottom of described guide bearing 3 and oil cylinder 5 interference fit, top and shell 4 interference fit, the top of described guide bearing 3 is provided with oil sealing base 1, described oil sealing base 1 and shell 4 interference fit, the inwall of described oil cylinder 5 is provided with groove 14, in described groove 14, be provided with spring 10 and the slide block 9 sliding, one end of one end bottom valve 7 relative to groove 14 of described spring 10 is connected, the other end of described spring 10 is connected with slide block 9, the sidewall of described slide block 9 is provided with annular groove 12, in described annular groove 12, be provided with O-ring seals 13, described O-ring seals 13 is sealed and matched with groove 14, between described oil cylinder 5 and shell 4, be provided with cavity 15, the sidewall of described cavity 15 is provided with draining hole 11, described draining hole 11 communicates with groove 14, on described bottom valve 7, cover has the collar 8, be positioned at bottom valve 7 and oil cylinder 5 joints, with oil cylinder 5 interference fit.
When oil pressure in oil cylinder 5 is excessive, slide block 9 can slide towards the direction of spring 10, thereby cause spring 10 compressed, after slide block 9 slip one end distances, 11 meetings of draining hole and oil cylinder 5 inside communicate, so a part of oil will and flow in cavity 15 by draining hole 11, and like this pressure in oil cylinder 5 is also reduced, pressure decreased in oil cylinder 5, spring 10 will promote slide block 9 and slide, slide block 9 will be blocked draining hole 11, and slide block 9 is provided with O-ring seals 13, good airproof performance between slide block 9 and chute, oil in oil pocket also cannot flow in cavity 15, can effectively reduce the pressure in oil cylinder 5 like this, prevent that oil is penetrated into oil sealing base 1 place, improve the working life of vibration damper, and the existence of the collar 8, can guarantee between piston 6 axles 2 and oil cylinder 5 coaxial, thereby make the service behaviour of vibration damper more stable.
Claims (3)
1. an anti-oil leakage damper, comprise shell, oil cylinder, piston shaft, bottom valve, guide bearing, oil sealing base and piston, described shell is coaxial with oil cylinder, the bottom of described oil cylinder is provided with bottom valve, described piston shaft lower end is provided with piston, described guide bearing is sheathed on piston shaft, the bottom of described guide bearing and oil cylinder interference fit, top and shell interference fit, the top of described guide bearing is provided with oil sealing base, described oil sealing base and shell interference fit, it is characterized in that: the inwall of described oil cylinder is provided with groove, in described groove, be provided with the slide block of spring and slip, one end of described spring is connected with one end of the relative bottom valve of groove, the other end of described spring is connected with slide block, between described oil cylinder and shell, be provided with cavity, the sidewall of described cavity is provided with draining hole, described draining hole communicates with groove.
2. anti-oil leakage damper according to claim 1, is characterized in that: described vibration damper also comprises the collar that is provided with a plurality of through holes, and the described collar is enclosed within on bottom valve, is positioned at bottom valve and oil cylinder joint, with oil cylinder interference fit.
3. anti-oil leakage damper according to claim 1 and 2, is characterized in that: the sidewall of described slide block is provided with annular groove, in described annular groove, is provided with O-ring seals, and described O-ring seals and groove are sealed and matched.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420277601.2U CN203856942U (en) | 2014-05-27 | 2014-05-27 | Anti-oil-leakage shock absorber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420277601.2U CN203856942U (en) | 2014-05-27 | 2014-05-27 | Anti-oil-leakage shock absorber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203856942U true CN203856942U (en) | 2014-10-01 |
Family
ID=51606793
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420277601.2U Expired - Fee Related CN203856942U (en) | 2014-05-27 | 2014-05-27 | Anti-oil-leakage shock absorber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203856942U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108458032A (en) * | 2018-03-29 | 2018-08-28 | 青岛理工大学 | Built-in enhanced variable damping viscous damping devices |
-
2014
- 2014-05-27 CN CN201420277601.2U patent/CN203856942U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108458032A (en) * | 2018-03-29 | 2018-08-28 | 青岛理工大学 | Built-in enhanced variable damping viscous damping devices |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203835821U (en) | Piston-type energy accumulator | |
| CN204041829U (en) | Vibration damper | |
| CN203856942U (en) | Anti-oil-leakage shock absorber | |
| CN203614162U (en) | Oil filter | |
| CN208106322U (en) | A kind of rock bit bearing pressure balanced structure | |
| CN104405693A (en) | Piston type energy accumulator | |
| CN203856941U (en) | Anti-oil-leakage shock absorber | |
| CN204127191U (en) | Gas-liquid two-way interaction spring assembly | |
| CN203730718U (en) | Combined seal bearing end cover for speed reducer | |
| CN209469643U (en) | A kind of high-speed overload actuator | |
| CN202418311U (en) | Clutch master cylinder | |
| CN204372178U (en) | A kind of oil sealing with double-layer sealing structure | |
| CN202500919U (en) | Clutch brake master cylinder | |
| CN205745295U (en) | A kind of oil field valve body sealing ring | |
| CN204372026U (en) | Single cylinder air-bag vibration damper | |
| CN209510992U (en) | A kind of guider assembly of damper | |
| CN203322251U (en) | Piston seal ring | |
| CN204805405U (en) | Damper | |
| CN203335707U (en) | Sealable gas spring | |
| CN202251629U (en) | Air spring by adopting dual sealing structures | |
| CN104088949A (en) | Fluid seal leakage-free damper | |
| CN204140690U (en) | Interface is without oozing sealed hydraulic release bearing | |
| CN203730456U (en) | Mini-type high-pressure oil hydraulic cylinder | |
| CN207261556U (en) | A kind of shock absorber sealing structure | |
| CN204784942U (en) | Three -section admission valve gland |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141001 Termination date: 20160527 |