CN2687418Y - Air spring - Google Patents
Air spring Download PDFInfo
- Publication number
- CN2687418Y CN2687418Y CN 200420025741 CN200420025741U CN2687418Y CN 2687418 Y CN2687418 Y CN 2687418Y CN 200420025741 CN200420025741 CN 200420025741 CN 200420025741 U CN200420025741 U CN 200420025741U CN 2687418 Y CN2687418 Y CN 2687418Y
- Authority
- CN
- China
- Prior art keywords
- piston
- shaped
- air spring
- piston rod
- packing groove
- 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
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- Fluid-Damping Devices (AREA)
Abstract
The utility model relates to a structure modification of an air spring. The air spring of the utility model mainly is composed of a cylinder sleeve, a piston, a piston rod, a guide sleeve, and a tail seal. The structure modification of the utility model is that a packing groove is arranged near one end of the piston rod; one end of the piston is provided with a blind hole which is fixedly sheathed on one end of the piston rod with the packing groove; the bind hole is pressed and embedded into the packing groove to form a fixing connection structure. The utility model makes the working stability and reliability of the air spring obviously improved.
Description
Technical field
The utility model relates to a kind of spring, especially a kind of architecture advances of air spring.
Background technique
Understand according to the claimant, existing air spring mainly is made up of cylinder liner, piston, piston rod, guide sleeve, tail envelope, and piston wherein adopts nut to fixedly connected with piston rod, fixes each other to have centring error easily, and manufacturability is bad.In addition, the damping hole on the piston is positioned at the sealing range of O RunddichtringO, at work by the shutoff of O RunddichtringO, influences the stability of motions of piston easily.
Summary of the invention
The technical problem that will solve of the present utility model is: at the shortcoming that above prior art exists, propose that a kind of piston is connected with piston rod reliably, the air spring of good manufacturability.
In order to solve above technical problem, air spring of the present utility model mainly is made up of cylinder liner, piston, piston rod, guide sleeve, tail envelope, its improvements are, be shaped on packing groove near one end of described piston rod, one end of described piston is shaped on blind hole, tightly be enclosed within piston rod and be shaped on an end of packing groove, and the structure that forms a fixed connection in the extruding embedding packing groove.Like this, piston and piston rod can be fastened together by riveted joint, are easy to guarantee concentricity, good manufacturability, and long-term work is also indeformable loosening.
The top that the further improvement of the utility model is described piston is shaped on central hole, the bottleneck of side is shaped on the damping hole that communicates with described central hole, thereby avoided damping hole in pistons work by the possibility of O RunddichtringO shutoff, guaranteed that piston can easy movement, the buffering resilience.
In a word, the utility model makes the stability of air spring work, reliability be improved significantly.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further described.
Fig. 1 is an embodiment's of the utility model a structural representation.
Embodiment
Embodiment one
The air spring of present embodiment mainly is made up of cylinder liner 8, piston 1, piston rod 6, guide sleeve 5, tail envelope 7 as shown in Figure 1.Wherein, guide sleeve 5 and tail envelope 7 difference sealing and fixing also are fixed with backbone sealing ring 3 in guide sleeve 5 one ends, and are shaped on the spacing depression of piston motion on the cylinder liner 8 near guide sleeve 5 one ends at the two ends of cylinder liner 8.Be shaped on flat packing groove near one end of piston rod 6, an end of piston 1 is shaped on blind hole, tightly is enclosed within the end that piston rod is shaped on packing groove, and extruding embeds the structure that forms a fixed connection in the packing groove.
Piston 1 is equipped with the O RunddichtringO with the face of moving with the touch of cylinder liner 8.The top of piston 1 is shaped on central hole, and the bottleneck of side is shaped on the damping hole that communicates with central hole.
The air spring that experiment showed, present embodiment is rational in infrastructure, good manufacturability, and piston motion is free and relaxed, and the buffering resilience is effective, long-term work all-the-time stable, reliable.
Claims (5)
1. air spring, mainly form by cylinder liner, piston, piston rod, guide sleeve, tail envelope, it is characterized in that: be shaped on packing groove near the end of described piston rod, one end of described piston is shaped on blind hole, tightly be enclosed within piston rod and be shaped on an end of packing groove, and the structure that forms a fixed connection in the extruding embedding packing groove.
2. according to the described air spring of claim 1, it is characterized in that: the top of described piston is shaped on central hole, and the bottleneck of side is shaped on the damping hole that communicates with described central hole.
3. according to the described air spring of claim 1, it is characterized in that: be shaped on flat packing groove near the end of described piston rod.
4. according to the described air spring of claim 2, it is characterized in that: sealing and fixing is at the two ends of cylinder liner respectively for described guide sleeve and tail envelope, and guide sleeve one end is fixed with backbone sealing ring.
5. according to claim 2 or 3 described air springs, it is characterized in that: near guide sleeve one end, be shaped on the spacing depression of piston motion on the described cylinder liner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420025741 CN2687418Y (en) | 2004-03-26 | 2004-03-26 | Air spring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420025741 CN2687418Y (en) | 2004-03-26 | 2004-03-26 | Air spring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2687418Y true CN2687418Y (en) | 2005-03-23 |
Family
ID=34669988
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420025741 Expired - Fee Related CN2687418Y (en) | 2004-03-26 | 2004-03-26 | Air spring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2687418Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103398125A (en) * | 2013-08-09 | 2013-11-20 | 林建斌 | Gas spring device |
| CN103527556A (en) * | 2013-10-24 | 2014-01-22 | 梁克 | Piston, air cylinder and manufacturing process of piston |
-
2004
- 2004-03-26 CN CN 200420025741 patent/CN2687418Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103398125A (en) * | 2013-08-09 | 2013-11-20 | 林建斌 | Gas spring device |
| CN103527556A (en) * | 2013-10-24 | 2014-01-22 | 梁克 | Piston, air cylinder and manufacturing process of piston |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |