CN202118169U - Air spring for preventing over-loosing or over-tension of retainer ring - Google Patents
Air spring for preventing over-loosing or over-tension of retainer ring Download PDFInfo
- Publication number
- CN202118169U CN202118169U CN2011201678502U CN201120167850U CN202118169U CN 202118169 U CN202118169 U CN 202118169U CN 2011201678502 U CN2011201678502 U CN 2011201678502U CN 201120167850 U CN201120167850 U CN 201120167850U CN 202118169 U CN202118169 U CN 202118169U
- Authority
- CN
- China
- Prior art keywords
- retainer ring
- piston rod
- over
- air spring
- tension
- 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
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Abstract
The utility model discloses an air spring for preventing over-loosing or over-tension of a retainer ring, relating to the field of a spring, a shock absorber and a shock absorbing device, particularly to a structure of an air spring, wherein the air spring for preventing over-loosing or over-tension of the retainer ring comprises a limitation regulating retainer ring and a piston rod; the limitation regulating retainer ring is integrally provided with at least one small lug on the inner circumference thereof; and each small lug is respectively arranged between the limitation regulating retainer ring and the piston rod. In the utility model, the small lug is designed in an inner hole of the limitation regulating retainer ring; the inner diameter of an inscribed circle formed by the small lug is smaller than the outer diameter of the piston rod after the piston rod is inserted; and the small lug is deformed to hold the piston. The contact area of the lug is small (generally including three points), so redundant magnitude of interference is eliminated due to deformation of the small lug; thereby fulfilling the aim of preventing loosing and tension.
Description
Technical field
The utility model relates to the field of a kind of spring, vibration damper, damping device, particularly the structure of air spring.
Background technique
Air spring is a kind ofly can play support, buffering, braking, highly regulate and the accessory of function such as angle adjustment, is widely used in fields such as medical equipment, automobile, furniture, Weaving device, machine-building.Principle is in airtight cylinder barrel, 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.Existing spacing adjusting collar generally adopts working of plastics, and internal diameter size is wayward accurately, and internal diameter can occur becoming flexible during greater than the piston rod external diameter, and string is moving in the course of action sends the sound or skid off; Internal diameter snaps in difficulty and yielding during less than piston rod, has increased the resistance that slides.
Summary of the invention
The purpose of the utility model is in order to overcome the deficiency of existing technology, to provide a kind of anti-collar to cross the air spring of loose tension.
The purpose of the utility model is achieved in that anti-collar crosses the air spring of loose tension; Comprise spacing adjusting collar and piston rod; Spacing adjusting collar is nested with outside piston rod; The interior Zhou Lianti of said spacing adjusting collar is provided with at least one small boss, and each small boss is separately positioned between spacing adjusting collar and the piston rod.
The utility model goes out small boss through the bore design at spacing adjusting collar, snap in piston rod after, the incircle internal diameter that small boss forms is less than the piston rod external diameter, small boss produces distortion, embraces piston rod.Because of boss area of contact little (being generally 3 points), unnecessary magnitude of interference can eliminate because of the distortion of small boss.So played locking and don't tight purpose.
Description of drawings
Fig. 1 is a kind of structural representation of the utility model.
Fig. 2 is an I place enlarged view among Fig. 1.
Embodiment
Like Fig. 1, shown in 2; Cross the air spring of loose tension for anti-collar; Comprise spacing adjusting collar 1 and piston rod 3; Spacing adjusting collar 1 is nested with outside piston rod 3, and the interior Zhou Lianti of spacing adjusting collar 1 is provided with three small boss 2, and each small boss 2 is separately positioned between spacing adjusting collar 1 and the piston rod 3.
Claims (1)
1. anti-collar is crossed the air spring of loose tension; Comprise spacing adjusting collar and piston rod; Spacing adjusting collar is nested with outside piston rod; It is characterized in that: the interior Zhou Lianti of said spacing adjusting collar is provided with at least one small boss, and each small boss is separately positioned between spacing adjusting collar and the piston rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201678502U CN202118169U (en) | 2011-05-24 | 2011-05-24 | Air spring for preventing over-loosing or over-tension of retainer ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201678502U CN202118169U (en) | 2011-05-24 | 2011-05-24 | Air spring for preventing over-loosing or over-tension of retainer ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202118169U true CN202118169U (en) | 2012-01-18 |
Family
ID=45459236
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201678502U Expired - Fee Related CN202118169U (en) | 2011-05-24 | 2011-05-24 | Air spring for preventing over-loosing or over-tension of retainer ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202118169U (en) |
-
2011
- 2011-05-24 CN CN2011201678502U patent/CN202118169U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120118 Termination date: 20140524 |