CN202118171U - Gas spring capable of stably inflating - Google Patents
Gas spring capable of stably inflating Download PDFInfo
- Publication number
- CN202118171U CN202118171U CN2011201693362U CN201120169336U CN202118171U CN 202118171 U CN202118171 U CN 202118171U CN 2011201693362 U CN2011201693362 U CN 2011201693362U CN 201120169336 U CN201120169336 U CN 201120169336U CN 202118171 U CN202118171 U CN 202118171U
- Authority
- CN
- China
- Prior art keywords
- cylinder barrel
- oil seal
- piston rod
- boss
- guide ring
- 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
A gas spring capable of stably inflating relates to the field of a spring, a shock absorber and a vibration damper, in particular to the structure of the gas spring. The gas spring comprises a cylinder barrel, a piston rod, a guide ring and an oil seal, wherein the piston rod is penetrated and arranged in the cylinder barrel; the guide ring and the oil seal are respectively arranged between the cylinder barrel and the piston rod; the oil seal is arranged at the rear side of the guide ring; a cylinder barrel boss is arranged in the cylinder barrel in the radial direction; the cylinder barrel boss is arranged at the rear side of the oil seal; bushes are sheathed outside the piston rod at intervals and are arranged between the oil seal and the cylinder barrel boss; at least three small bosses are axially arranged at the periphery of the bushes; the small bosses are respectively arranged in the cylinder barrel in a matching manner; and grooves are respectively and axially arranged outside the bush between the two adjacent bosses. After being pressed into the cylinder barrel, the air spring produces little amount of plastic deformation so as to be supported and remained at a needed position for fixing the oil seal by adopting the design and installing the bushes between the oil seal and the cylinder barrel boss, thereby eliminating the unstable force value caused by the displacement of the oil seal.
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.The air spring of inflation is in gas replenishment process before existing, and oil sealing has displacement or distortion in various degree, influences the volume of inflatable air chamber, and then causes the instability of air spring power value, has a strong impact on quality of product.
Summary of the invention
The purpose of the utility model is in order to overcome the deficiency of existing technology, a kind of air spring that prevents the stablized inflation of oil sealing displacement to be provided.
The purpose of the utility model is achieved in that the air spring that can stablize inflation, comprises cylinder barrel, piston rod, guide ring and oil sealing, and piston rod is set in the cylinder barrel; Guide ring and oil sealing are separately positioned between cylinder barrel and the piston rod, and oil sealing is arranged on the rear side of guide ring, and said internal diameter of cylinder is to the cylinder barrel boss is set; The cylinder barrel boss is arranged on the rear side of oil sealing; The outer spacer sleeve of said piston rod is put lining, and lining is arranged between said oil sealing and the cylinder barrel boss, at least three small boss of peripheral, axial setting of lining; Each small boss is equipped with respectively in cylinder barrel, and the lining between adjacent two small boss axially is provided with groove outward respectively.
The utility model is through above design; Mounting bush between oil sealing and cylinder barrel boss is pressed into behind the cylinder barrel and can produces a small amount of plastic deformation, is able to support resting on needed position; Be used for fixing the oil sealing position, can eliminate the power value instability of the system of leading owing to the displacement of oil sealing.
Description of drawings
Fig. 1 is a kind of structural representation of the utility model.
Fig. 2 is the structural representation of lining.
Among the figure, 1 piston rod, 2 cylinder barrel boss, 3 linings, 4 oil sealings, 5 cylinder barrels, 6 guide rings, 7 small boss, 8 grooves.
Embodiment
Like Fig. 1, shown in 2, the utility model comprises cylinder barrel 5, piston rod 1, guide ring 6 and oil sealing 4, and piston rod 1 is set in the cylinder barrel 5; Guide ring 6 and oil sealing 4 are separately positioned between cylinder barrel 5 and the piston rod 1, and oil sealing 4 is arranged on the rear side of guide ring 6, and cylinder barrel boss 2 radially is set in the cylinder barrel 5; Cylinder barrel boss 2 is arranged on the rear side of oil sealing 4; Piston rod 1 outer spacer sleeve is put lining 3, and lining 3 is arranged between oil sealing 4 and the cylinder barrel boss 2, and the peripheral, axial of lining 3 is provided with four small boss 7; Each small boss 7 is equipped with respectively in cylinder barrel 5, the lining 3 outer grooves 8 that axially are provided with respectively between adjacent two small boss 7.
Claims (1)
1. can stablize the air spring of inflation, comprise cylinder barrel, piston rod, guide ring and oil sealing, piston rod is set in the cylinder barrel; Guide ring and oil sealing are separately positioned between cylinder barrel and the piston rod, and oil sealing is arranged on the rear side of guide ring, and said internal diameter of cylinder is to the cylinder barrel boss is set; The cylinder barrel boss is arranged on the rear side of oil sealing; It is characterized in that: the outer spacer sleeve of said piston rod is put lining, and lining is arranged between said oil sealing and the cylinder barrel boss, at least three small boss of peripheral, axial setting of lining; Each small boss is equipped with respectively in cylinder barrel, and the lining between adjacent two small boss axially is provided with groove outward respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201693362U CN202118171U (en) | 2011-05-25 | 2011-05-25 | Gas spring capable of stably inflating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201693362U CN202118171U (en) | 2011-05-25 | 2011-05-25 | Gas spring capable of stably inflating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202118171U true CN202118171U (en) | 2012-01-18 |
Family
ID=45459238
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201693362U Expired - Fee Related CN202118171U (en) | 2011-05-25 | 2011-05-25 | Gas spring capable of stably inflating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202118171U (en) |
-
2011
- 2011-05-25 CN CN2011201693362U patent/CN202118171U/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 | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: JIANGSU MINGRUI GAS SPRING CO., LTD. Assignor: Jiangdu Mingrui Gas Spring Manufacturing Co.,Ltd. Contract record no.: 2014320000601 Denomination of utility model: Stably inflatable gas spring Granted publication date: 20120118 License type: Exclusive License Record date: 20140722 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120118 Termination date: 20170525 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |