CN204985488U - Oil blanket bush of air spring - Google Patents
Oil blanket bush of air spring Download PDFInfo
- Publication number
- CN204985488U CN204985488U CN201520534745.6U CN201520534745U CN204985488U CN 204985488 U CN204985488 U CN 204985488U CN 201520534745 U CN201520534745 U CN 201520534745U CN 204985488 U CN204985488 U CN 204985488U
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- China
- Prior art keywords
- air spring
- ring body
- oil sealing
- annular body
- utility
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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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Abstract
The utility model discloses an oil blanket bush of air spring, including annular body, be equipped with the piston rod hole in the middle part of the annular body, the side of annular body still has the annular and clamps the arch, and it is perpendicular with annular body to clamp bellied two rings shape side, clamp protruding and the downthehole wall of piston rod apart from L be greater than clamp protruding and annular body periphery apart from L'. The utility model discloses avoid taking place the oil leak phenomenon, the oil blanket can not warp moreover, excellent in use effect.
Description
Technical field
The utility model relates to a kind of oil sealing lining of air spring.
Background technique
Air spring purposes widely, the working principle of air spring is filled with inert gas or gas mixture in airtight pressure cylinder, make the pressure in cavity higher than atmospheric manyfold, utilize the cross-section area of piston rod be less than piston cross-section area thus produce pressure difference to realize the motion of piston rod.In piston rod movement process, need to arrange oil sealing, traditional air spring some use single oil sealing, some uses dual-oil seal, and the shortcoming of single oil sealing is that dust can enter in cylinder body, and working life is short, oil leakage phenomenon is serious, the shortcoming of dual-oil seal is that oil sealing is easily out of shape, and causes gas to be difficult to enter in cylinder body, and the using effect of air spring is reduced.
Summary of the invention
The purpose of this utility model is to provide one to avoid oil leakage phenomenon occurs, and oil sealing can not be out of shape, the oil sealing lining of the air spring that using effect is good.
In order to achieve the above object, the technical solution of the utility model is: a kind of oil sealing lining of air spring, comprises ring body, be provided with rod aperture in the middle part of ring body, the side of described ring body also has annular and clamps projection, clamps two protruding annular side vertical with ring body.
The described projection that clamps is greater than with the distance L of rod aperture internal face the distance L ' clamping protruding and ring body periphery.
The described distance L clamping projection and rod aperture internal face clamps twice that is protruding and the distance L ' of ring body periphery.
After adopting said structure, the utility model is located between two oil sealings, and clamp projection and be installed in the annular groove of one of them oil sealing, make in piston rod movement process, clamp raised support and live oil sealing, oil sealing can not be out of shape, avoid oil leakage phenomenon occurs, and air can be made very smoothly to enter in cylinder body, air spring using effect is good.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the A-A sectional view of Fig. 1;
Fig. 3 is using state figure of the present utility model.
Embodiment
The embodiment provided below in conjunction with accompanying drawing is described in further detail the utility model.
Shown in Fig. 1,2, an oil sealing lining for air spring, comprises ring body 1, is provided with rod aperture 1-1 in the middle part of ring body 1, the side of described ring body 1 also has annular and clamps protruding 2, and two annular side 21 clamping projection 2 are vertical with ring body 1.
Shown in Fig. 1,2, in order to better meet the groove size of oil sealing, the utility model is installed on oil sealing 3 more firm, described in clamp protruding 2 with the distance L of rod aperture 1-1 internal face be greater than clamp protruding 2 with the distance L ' of ring body 1 periphery.The described distance L clamping projection 2 and rod aperture 1-1 internal face is the twice of the distance L ' clamping projection 2 and ring body 1 periphery.
Shown in Fig. 1,2,3, for ensureing the sealability of cylinder body 4, avoid leakage of oil, the cylinder body 4 of air spring is provided with the first oil sealing 5 and the second oil sealing 6, the utility model is located between two oil sealings, and clamp protruding 2 and be installed in the annular groove of the first oil sealing 5, make in piston rod movement process, clamp protruding 2 and support the first oil sealing 5, first oil sealing 5 can not be out of shape, avoid oil leakage phenomenon occurs, and air can be made very smoothly to enter in cylinder body, air spring using effect is good.
Above-described is only preferred implementation of the present utility model; it should be pointed out that for the person of ordinary skill of the art, under the prerequisite not departing from the utility model creation design; can also make some distortion and improvement, these all belong to protection domain of the present utility model.
Claims (3)
1. the oil sealing lining of an air spring, comprise ring body (1), ring body (1) middle part is provided with rod aperture (1-1), it is characterized in that: the side of described ring body (1) also has annular and clamps projection (2), two annular side (2-1) clamping projection (2) are vertical with ring body (1).
2. the oil sealing lining of air spring according to claim 1, is characterized in that: described in clamp projection (2) and rod aperture (1-1) internal face distance L be greater than the distance L ' clamping projection (2) and ring body (1) periphery.
3. the oil sealing lining of air spring according to claim 2, is characterized in that: described in clamp projection (2) and rod aperture (1-1) internal face distance L be the twice clamping projection (2) and the distance L ' of ring body (1) periphery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520534745.6U CN204985488U (en) | 2015-07-22 | 2015-07-22 | Oil blanket bush of air spring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520534745.6U CN204985488U (en) | 2015-07-22 | 2015-07-22 | Oil blanket bush of air spring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204985488U true CN204985488U (en) | 2016-01-20 |
Family
ID=55119861
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520534745.6U Active CN204985488U (en) | 2015-07-22 | 2015-07-22 | Oil blanket bush of air spring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204985488U (en) |
-
2015
- 2015-07-22 CN CN201520534745.6U patent/CN204985488U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 213000 Changzhou Longxiang Gas Spring Co., Ltd. No. 1 Longting Road, Wujin District, Changzhou City, Jiangsu Province Patentee after: Changzhou Longxiang Gas Spring Co., Ltd. Address before: 213000 Changzhou Longxiang Gas Spring Co., Ltd. No. 1 Longting Road, Wujin District, Changzhou City, Jiangsu Province Patentee before: CHANGZHOU LONGXIANG AIR SPRING CO., LTD. |