CN202274036U - Air spring - Google Patents
Air spring Download PDFInfo
- Publication number
- CN202274036U CN202274036U CN2011203606335U CN201120360633U CN202274036U CN 202274036 U CN202274036 U CN 202274036U CN 2011203606335 U CN2011203606335 U CN 2011203606335U CN 201120360633 U CN201120360633 U CN 201120360633U CN 202274036 U CN202274036 U CN 202274036U
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- CN
- China
- Prior art keywords
- piston rod
- ring
- guide sleeve
- air spring
- dust
- 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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- Fluid-Damping Devices (AREA)
Abstract
The utility model relates to the field of elastic buffer devices formed by air compression systems and aims at providing an air spring which prevents dust from entering a gap between a piston rod and a guide sleeve, reduces motion resistance of the piston rod, and prolongs service life of the piston rod and the guide sleeve. The air spring comprises a cylinder sleeve, a piston, the piston rod and the guide sleeve and is characterized in that a dustproof ring is arranged between the guide sleeve and the front end of the cylinder sleeve. One end of the piston rod is fixedly connected with the piston, and the other end of the piston rod penetrates through the guide sleeve, the dustproof ring and the front end of the cylinder sleeve to extend out of the cylinder sleeve. In the using process of the air spring, external dust cannot enter the gap between the piston rod and the guide sleeve along with the movement of the piston rod because of blocking of the dustproof ring, thereby reducing motion resistance of the piston rod, and prolong service life of the piston rod and the guide sleeve.
Description
Technical field
The utility model relates to the elastic buffering mechanism field that air compression system constitutes, and especially a kind of dust that prevents gets in the gap between piston rod and the guide sleeve, reduces the resistance to motion of piston rod and prolongs piston rod and the air spring in the working life of guide sleeve.
Background technique
Air spring has good buffering and shock-proof effect, and the air spring volume is little, cost is low, is widely used in fields such as body building device, automobile and train; The model utility of Chinese patent notification number CN2687418Y relates to a kind of air spring; Mainly form by cylinder liner, piston, piston rod, guide sleeve, tail envelope; Its improvements are, are shaped on packing groove near the end of said piston rod, and an end of said 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.The deficiency that this air spring exists is: be slidingly connected between piston rod and the guide sleeve; When piston rod movement; Dust can get in the gap between piston rod and the guide sleeve along with piston rod, increases the resistance to motion of piston rod and shortens piston rod and the working life of guide sleeve; Be prone to get in the gap between piston rod and the guide sleeve in order to overcome present air spring dust; Increase the resistance to motion of piston rod and shorten piston rod and the deficiency in the working life of guide sleeve; Designing a kind of dust that prevents gets in the gap between piston rod and the guide sleeve; Reduce the resistance to motion of piston rod and prolong piston rod and the air spring in the working life of guide sleeve, become problem demanding prompt solution.
The model utility content
The purpose of the utility model is to be prone to get in the gap between piston rod and the guide sleeve in order to overcome present air spring dust; Increase the resistance to motion of piston rod and shorten piston rod and the deficiency in the working life of guide sleeve; Provide a kind of dust that prevents to get in the gap between piston rod and the guide sleeve, reduce the resistance to motion of piston rod and prolong piston rod and the air spring in the working life of guide sleeve.
The concrete technological scheme of the utility model is:
A kind of air spring comprises cylinder liner, piston, piston rod and guide sleeve; It is characterized in that: described air spring is provided with dust ring between the front end of guide sleeve and cylinder liner; One end of piston rod is fixedly connected with piston, and the front end that the other end of piston rod passes guide sleeve, dust ring and cylinder liner stretches out outside the cylinder liner.In this air spring using process, outside dust, because the stopping of dust ring, can not be with being moved in the gap between piston rod and the guide sleeve of piston rod, reduce the resistance to motion of piston rod and prolonged working life of piston rod and guide sleeve.
As preferably, described dust ring comprises inner ring, outer ring, fastener rings and lip circle; Described inner ring and outer ring are positioned at the homonymy of fastener rings, and described fastener rings is connected with an end of inner ring and an end of outer ring respectively; The lip circle be shaped as frustum type, the lip circle is positioned at the opposite side of fastener rings, the big end of lip circle is connected with fastener rings; Described dust ring is provided with mesopore, and mesopore connects inner ring and lip circle, and mesopore is enclosed within outside the piston rod and with piston rod and is slidingly connected.Dust ring is simple in structure, and frustum type lip circle blocks dust effect is better.
As preferably, described dust ring is provided with skeleton ring; Described skeleton ring is arranged in fastener rings and extends to inner ring.Skeleton ring has strengthened the strength and stiffness of dust ring.
As preferably, the middle part of the mesopore of described dust ring is provided with groove.Groove makes the lip circle can make a concession to the inside when stressed in the outside, dustproof better effects if.
As preferably, the sectional shape of described groove is an arc.Easily manufactured.
As preferably, be provided with stiffening rib between described inner ring and the outer ring.Stiffening rib has strengthened the strength and stiffness of dust ring.
The beneficial effect of the utility model is:
Compared with prior art; Described air spring has the following advantages: one. in this air spring using process; Outside dust; Because the stopping of dust ring, can not be with being moved in the gap between piston rod and the guide sleeve of piston rod, reduce the resistance to motion of piston rod and prolonged working life of piston rod and guide sleeve.Two. dust ring is simple in structure, and frustum type lip circle blocks dust effect is better.Three. skeleton ring and stiffening rib have strengthened the strength and stiffness of dust ring.Four. groove makes the lip circle can make a concession to the inside when stressed in the outside, dustproof better effects if; The sectional shape of groove is an arc.Easily manufactured.
Description of drawings
Fig. 1 is a kind of structural representation of the utility model;
Fig. 2 is the structural representation of dust ring among Fig. 1.
Among the figure: cylinder liner-1, front end-11, piston-2, piston rod-3, guide sleeve-4, dust ring-5, mesopore-51, inner ring-52, outer ring-53, fastener rings-54, lip circle-55, skeleton ring-56, groove-57, stiffening rib-8.
Embodiment
Below in conjunction with shown in the accompanying drawing the utility model is described further.
Shown in accompanying drawing 1, accompanying drawing 2: a kind of air spring comprises cylinder liner 1, piston 2, piston rod 3 and guide sleeve 4.
Described air spring is provided with dust ring 5 between the front end 11 of guide sleeve 4 and cylinder liner 1; Dust ring 5 comprises inner ring 52, outer ring 53, fastener rings 54 and lip circle 55; Inner ring 52 and outer ring 53 are positioned at the homonymy of fastener rings 54, and fastener rings 54 is connected with an end of inner ring 52 and an end of outer ring 53 respectively; Be provided with four stiffening ribs that are uniformly distributed along the circumference 58 between inner ring and the outer ring; Dust ring 5 is provided with skeleton ring 56; Skeleton ring 56 is arranged in fastener rings 54 and extends to inner ring 52; Lip circle 55 be shaped as frustum type, lip circle 55 is positioned at the opposite side of fastener rings 54, the big end of lip circle 55 is connected with fastener rings 54; Dust ring 5 is provided with mesopore 51, and mesopore 51 connects inner ring 52 and lip circle 55, and the middle part of mesopore 51 is provided with groove 57, and the sectional shape of groove 57 is an arc; Mesopore 51 is enclosed within outside the piston rod 3 and with piston rod 3 and is slidingly connected, and an end of piston rod 3 is fixedly connected with piston 2, and the front end 11 that the other end of piston rod 3 passes guide sleeve 4, dust ring 5 and cylinder liner 1 stretches out outside the cylinder liner 1.
In this air spring using process, outside dust, because the stopping of dust ring 5, can not be with being moved in the gap between piston rod 3 and the guide sleeve 4 of piston rod 3, reduce the resistance to motion of piston rod 3 and prolonged working life of piston rod 3 and guide sleeve 4.
In this air spring using process, outside dust, because the stopping of dust ring, can not be with being moved in the gap between piston rod and the guide sleeve of piston rod, reduce the resistance to motion of piston rod and prolonged working life of piston rod and guide sleeve.Dust ring is simple in structure, and frustum type lip circle blocks dust effect is better.Skeleton ring and stiffening rib have strengthened the strength and stiffness of dust ring.Groove makes the lip circle can make a concession to the inside when stressed in the outside, dustproof better effects if; The sectional shape of groove is an arc.Easily manufactured.
It is apparent to one skilled in the art that the utility model can be changed into multiple mode, and the scope that breaks away from the utility model is not thought in such change.The conspicuous modification of the technician to said field that all are such is within the scope that is included in this claim.
Claims (6)
1. an air spring comprises cylinder liner, piston, piston rod and guide sleeve; It is characterized in that: described air spring is provided with dust ring between the front end of guide sleeve and cylinder liner; One end of piston rod is fixedly connected with piston, and the front end that the other end of piston rod passes guide sleeve, dust ring and cylinder liner stretches out outside the cylinder liner.
2. air spring according to claim 1 is characterized in that: described dust ring comprises inner ring, outer ring, fastener rings and lip circle; Described inner ring and outer ring are positioned at the homonymy of fastener rings, and described fastener rings is connected with an end of inner ring and an end of outer ring respectively; The lip circle be shaped as frustum type, the lip circle is positioned at the opposite side of fastener rings, the big end of lip circle is connected with fastener rings; Described dust ring is provided with mesopore, and mesopore connects inner ring and lip circle, and mesopore is enclosed within outside the piston rod and with piston rod and is slidingly connected.
3. air spring according to claim 1 and 2 is characterized in that: described dust ring is provided with skeleton ring; Described skeleton ring is arranged in fastener rings and extends to inner ring.
4. air spring according to claim 1 and 2 is characterized in that: the middle part of the mesopore of described dust ring is provided with groove.
5. air spring according to claim 4 is characterized in that: the sectional shape of described groove is an arc.
6. air spring according to claim 1 and 2 is characterized in that: be provided with stiffening rib between described inner ring and the outer ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203606335U CN202274036U (en) | 2011-09-23 | 2011-09-23 | Air spring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203606335U CN202274036U (en) | 2011-09-23 | 2011-09-23 | Air spring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202274036U true CN202274036U (en) | 2012-06-13 |
Family
ID=46194397
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203606335U Expired - Fee Related CN202274036U (en) | 2011-09-23 | 2011-09-23 | Air spring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202274036U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103953674A (en) * | 2014-04-28 | 2014-07-30 | 贵州龙飞气弹簧有限责任公司 | Variable damping gas spring |
| CN104229675A (en) * | 2014-09-26 | 2014-12-24 | 徐州华恒机器人系统有限公司 | Anti-falling mechanism and hydraulic lifting device utilizing same |
| CN106808275A (en) * | 2017-03-24 | 2017-06-09 | 常州轻工职业技术学院 | Left-hand thread mechanism and tool striking device |
-
2011
- 2011-09-23 CN CN2011203606335U patent/CN202274036U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103953674A (en) * | 2014-04-28 | 2014-07-30 | 贵州龙飞气弹簧有限责任公司 | Variable damping gas spring |
| CN104229675A (en) * | 2014-09-26 | 2014-12-24 | 徐州华恒机器人系统有限公司 | Anti-falling mechanism and hydraulic lifting device utilizing same |
| CN106808275A (en) * | 2017-03-24 | 2017-06-09 | 常州轻工职业技术学院 | Left-hand thread mechanism and tool striking device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120613 Termination date: 20150923 |
|
| EXPY | Termination of patent right or utility model |