CN102434614A - Gas spring - Google Patents
Gas spring Download PDFInfo
- Publication number
- CN102434614A CN102434614A CN2011102876365A CN201110287636A CN102434614A CN 102434614 A CN102434614 A CN 102434614A CN 2011102876365 A CN2011102876365 A CN 2011102876365A CN 201110287636 A CN201110287636 A CN 201110287636A CN 102434614 A CN102434614 A CN 102434614A
- Authority
- CN
- China
- Prior art keywords
- cylinder body
- piston rod
- gas spring
- dirt
- dustproof sleeve
- 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.)
- Pending
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- Sealing Devices (AREA)
Abstract
The invention discloses a gas spring, which comprises a cylinder body and a piston rod; a front annular bump and a rear annular bump that are in parallel are arranged in the internal part of the cylinder body; a dustproof sleeve is arranged in the connecting place of the inner side of the end part of the cylinder body and the piston rod; the dustproof sleeve is located by the front bump; a guide sleeve, an oil seal and a gasket are arranged between the front and rear bumps in sequence; the outer diameter of the cylinder body is 22mm; the outer diameter of the dustproof sleeve is 19mm; and the outer diameter of the piston rod is 10mm. dust can be effectively prevented from coming into the internal part of the gas spring and the service life of the gas spring is prolonged by setting a dustproof sleeve in the connecting place of the inner side of the end part of the cylinder body and the piston rod, locating the dustproof sleeve by the annular bump in the internal part of the cylinder body and matching the annular bump and the dustproof sleeve. The sealing property of the gas spring is better by arranging a guide sleeve, an oil seal and a gasket between the front and rear bumps in sequence. Compared with the prior art, the gas spring has the advantages of convenient use and long service life.
Description
Technical field
The present invention relates to the auto parts machinery field, relate in particular to a kind of air spring.
Background technique
The working principle of air spring is in airtight pressure cylinder, to charge into inert gas or gas mixture; Make the pressure in the cavity be higher than atmospheric several times or tens times, thereby the pressure difference that the cross-section area that utilizes piston rod produces less than the cross-section area of piston realize the motion of piston rod.In the piston rod movement process, the impurity such as dust that will cover are above that easily brought air spring inside into, will damage inner Sealing like this, and inner lubricant oil was lost efficacy, and have influenced its working life, make troubles to use.
Summary of the invention
The objective of the invention is to address the above problem, a kind of air spring is provided, its good seal performance can prevent impurity entering air spring inside such as dust, has the advantage of easy to use and long service life.
The objective of the invention is to realize through following technological scheme:
A kind of air spring comprises cylinder body, piston rod, two annular protrusions before and after said cylinder interior laterally arranges; The inboard junction point with piston rod of said cylinder ends is provided with dirt-proof boot; Said dirt-proof boot sets gradually guide sleeve, oil sealing, pad through preceding protruding location between two convexities of said front and back, and the external diameter of said cylinder body is 22mm; The external diameter of said dirt-proof boot is 19mm, and the external diameter of said piston rod is 10mm.
Said dirt-proof boot is a boot seal.
Beneficial effect of the present invention is: through being provided with dirt-proof boot at the inboard junction point with piston rod of cylinder ends; And the annular protrusion that passes through the cylinder interior setting is located; Annular protrusion and dirt-proof boot cooperatively interact; It is inner to prevent effectively that dust from getting into air spring, has prolonged the working life of air spring; Through between two convexities of front and back, setting gradually guide sleeve, oil sealing, pad, make the better tightness of air spring, the contrast existing technology, this air spring has the advantage of easy to use and long service life.
Description of drawings
According to accompanying drawing and embodiment the present invention is done further explain below.
Fig. 1 is the structural representation of air spring of the present invention.
Among the figure:
1, cylinder body; 2, piston rod; 3, convexity; 4, dirt-proof boot; 5, guide sleeve; 6, oil sealing; 7, pad.
Embodiment
Among the embodiment as shown in Figure 1, air spring of the present invention, two annular protrusions 3 before and after cylinder body 1 inside laterally arranges; The inboard junction point with piston rod 2 in cylinder body 1 end is provided with boot seal 4; Dirt-proof boot 4 sets gradually guide sleeve 5, oil sealing 6, pad 7 through preceding protruding 3 location between the said front and back two protruding 3, and wherein the external diameter of cylinder body 1 is 22mm; The external diameter of dirt-proof boot 4 is 19mm, and the external diameter of piston rod 2 is 10mm.
Claims (2)
1. air spring; Comprise cylinder body (1), piston rod (2), it is characterized in that, two annular protrusions (3) before and after said cylinder body (1) inside laterally arranges; The inboard junction point with piston rod (2) in said cylinder body (1) end is provided with dirt-proof boot (4); Said dirt-proof boot (4) sets gradually guide sleeve (5), oil sealing (6), pad (7) through preceding convexity (3) location between said front and back two convexities (3), the external diameter of said cylinder body (1) is 22mm; The external diameter of said dirt-proof boot (4) is 19mm, and the external diameter of said piston rod (2) is 10mm.
2. air spring according to claim 1 is characterized in that, said dirt-proof boot (4) is a boot seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102876365A CN102434614A (en) | 2011-09-26 | 2011-09-26 | Gas spring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102876365A CN102434614A (en) | 2011-09-26 | 2011-09-26 | Gas spring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102434614A true CN102434614A (en) | 2012-05-02 |
Family
ID=45982873
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102876365A Pending CN102434614A (en) | 2011-09-26 | 2011-09-26 | Gas spring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102434614A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105257759A (en) * | 2015-10-31 | 2016-01-20 | 重庆市安太弹簧有限责任公司 | Gas spring device with self-cleaning function |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2360677Y (en) * | 1999-01-26 | 2000-01-26 | 汪沛华 | Sealing device of Drum type viberator |
| JP2007211915A (en) * | 2006-02-10 | 2007-08-23 | Kayaba Ind Co Ltd | Gas spring |
| CN201152333Y (en) * | 2008-01-14 | 2008-11-19 | 江阴强顺科技有限公司 | End head air admittance gas extension spring |
| CN201202763Y (en) * | 2008-05-27 | 2009-03-04 | 吴建清 | Gas spring |
| CN202251633U (en) * | 2011-09-26 | 2012-05-30 | 无锡诤烨气动器件有限公司 | Gas spring |
-
2011
- 2011-09-26 CN CN2011102876365A patent/CN102434614A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2360677Y (en) * | 1999-01-26 | 2000-01-26 | 汪沛华 | Sealing device of Drum type viberator |
| JP2007211915A (en) * | 2006-02-10 | 2007-08-23 | Kayaba Ind Co Ltd | Gas spring |
| CN101082359A (en) * | 2006-02-10 | 2007-12-05 | 萱场工业株式会社 | Gas spring |
| CN201152333Y (en) * | 2008-01-14 | 2008-11-19 | 江阴强顺科技有限公司 | End head air admittance gas extension spring |
| CN201202763Y (en) * | 2008-05-27 | 2009-03-04 | 吴建清 | Gas spring |
| CN202251633U (en) * | 2011-09-26 | 2012-05-30 | 无锡诤烨气动器件有限公司 | Gas spring |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105257759A (en) * | 2015-10-31 | 2016-01-20 | 重庆市安太弹簧有限责任公司 | Gas spring device with self-cleaning function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20120502 |