CN203939912U - A kind of air spring - Google Patents
A kind of air spring Download PDFInfo
- Publication number
- CN203939912U CN203939912U CN201420278733.7U CN201420278733U CN203939912U CN 203939912 U CN203939912 U CN 203939912U CN 201420278733 U CN201420278733 U CN 201420278733U CN 203939912 U CN203939912 U CN 203939912U
- Authority
- CN
- China
- Prior art keywords
- circular plate
- piston rod
- cylinder body
- air spring
- joint
- 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
Landscapes
- Fluid-Damping Devices (AREA)
Abstract
The utility model proposes a kind of air spring, comprising: piston rod, the tail end of described piston rod is provided with rod end joint, and the head end of described piston rod is fixed on a piston; Described piston is slidably arranged in a circle tube cylinder, and one end of described cylinder body is provided with the import and export suitable with described piston rod bar footpath; In described cylinder body, near importing and exporting one end, be provided with sealing guidance system, described cylinder body the other end outside is provided with pipe end joint; Described piston is comprised of the first circular plate, the second circular plate and joint, and described joint fixed cover is placed in piston rod head end; Described the first circular plate and the second circular plate are provided with the straight tube hole of running through circular plate; On described the first circular plate, be also provided with the conical damping hole that runs through circular plate.This air spring has solved the problem that in prior art, air spring is not easily opened.
Description
Technical field
The utility model relates to automobile shock field, refers to especially a kind of air spring.
Background technique
At present, along with the development of automotive industry, the use of air spring is also more and more.Existing air spring is mainly comprised of cylinder body, piston and piston rod.On piston, have throttling pore, cylinder body plays storing high pressure gas effect, and back and forth flowing passage is provided for pressurized gas.But existing inside of air spring does not have dustproof facilities, inside easily enters dust, causes obstruction.Air spring after obstruction gently can cause motion uneven, there is jam phenomenon, increase damping force, heavy cause air spring cannot move, ineffective.
And, existing air spring, during, overpressure large in the temperature difference, air spring is easily by the top distortion of institute's supporter.And when the temperature difference is larger, air spring is not easily opened.
Model utility content
The utility model proposes a kind of air spring, solved the problem that in prior art, air spring is not easily opened.
The technical solution of the utility model is achieved in that
An air spring, its structure comprises:
Piston rod, the tail end of described piston rod is provided with rod end joint, and the head end of described piston rod is fixed on a piston;
Described piston is slidably arranged in a circle tube cylinder, and one end of described cylinder body is provided with the import and export suitable with described piston rod bar footpath;
In described cylinder body, near importing and exporting one end, be provided with sealing guidance system, described cylinder body the other end outside is provided with pipe end joint;
Described piston is comprised of the first circular plate, the second circular plate and joint, and described joint fixed cover is placed in piston rod head end;
Described the first circular plate and the second circular plate are provided with the straight tube hole of running through circular plate;
On described the first circular plate, be also provided with the conical damping hole that runs through circular plate.
Concrete, described in technique scheme in piston structure, near piston rod head end be the first circular plate, from piston rod head end away from is the second circular plate.These two circular plates are parallel to each other and can slide along inboard wall of cylinder block with cylinder diameter is suitable.In the middle of two circular plates, it is the joint that fixed cover is placed in piston rod head end.
Wherein, on the first and second circular plates, be equipped with the straight tube hole of running through circular plate.And, on the first and second circular plates, be preferably respectively provided with four straight tube holes of running through circular plate.The diameter in described straight tube hole can be 1 millimeter.
Wherein, the conical damping hole arranging on described the first circular plate, its less bottom surface is positioned at the first circular plate on the end face of the second circular plate, and larger bottom surface is positioned on the first circular plate other end, and runs through the first circular plate.
Conical damping hole in technique scheme can provide air-flow buffer when piston movement speed is very fast, thereby makes this air spring flexible more flexible, and can normal operation under the larger environment of the temperature difference, there will not be the phenomenon of not opening.
As another of technique scheme, improve, described piston rod and described cylinder ends are imported and exported the slip part of joining and are provided with dust-proof cover.
Described dust-proof cover comprises that one is fixedly installed on the built-in seal ring that cylinder body is imported and exported internal end surface, and one is fixedly installed on the external seal ring that cylinder body is imported and exported outside end face.Described built-in seal ring and external seal ring are fixedly installed on respectively inside and outside the cylinder body end face of import and export, and are placed on slidably on piston rod, form double-layer sealing structure.
Or, described dust-proof cover can adopt the design of " work " font, described dust-proof cover comprises that one is positioned at external seal ring and the joint sleeve that the inner built-in seal ring and of cylinder body import and export is located at cylinder body import and export outside, and described joint jacket casing is placed in outside piston rod, thereby plays seal action.
The dust-proof cover arranging in piston rod turnover cylinder body part, can prevent that external dust from entering, and has effectively prevented the obstruction that inside of air spring device contamination causes.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the overall structure schematic diagram of the utility model air spring;
Fig. 2 is the cross section structure schematic diagram of piston shown in Fig. 1;
In figure: 1-pipe end joint; 2-cylinder body; 3-piston rod; 4-piston; 5-guidance system; 6-rod end joint; 7-dust-proof cover; 41-the first circular plate; 42-the second circular plate; 43-joint; 44-straight tube hole; 45-conical damping hole.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technological scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, rather than whole embodiments.Embodiment based in the utility model, those of ordinary skills are not making the every other embodiment who obtains under creative work prerequisite, all belong to the scope of the utility model protection.
As depicted in figs. 1 and 2, air spring of the present utility model, its structure comprises:
Piston rod 3, the tail end of described piston rod 3 is provided with rod end joint 6, and the head end 31 of described piston rod 3 is fixed on a piston 4;
Described piston 4 is slidably arranged in a circle tube cylinder 2, and one end of described cylinder body 2 is provided with the import and export suitable with described piston rod 3 bar footpaths;
Described cylinder body 2 is interior is provided with sealing guidance system 5 near importing and exporting one end, and described cylinder body 2 the other end outsides are provided with pipe end joint 1;
Described piston 4 is comprised of the first circular plate 41, the second circular plate 42 and joint 43, and described joint 43 fixed covers are placed in piston rod head end 31;
Described the first circular plate 41 and the second circular plate 42 are provided with the straight tube hole 44 of running through circular plate;
On described the first circular plate 41, be also provided with the conical damping hole 45 that runs through circular plate.
Concrete, as shown in Figure 2, described piston 4 is " work " font along the cross section that is parallel to piston rod 3 directions, parallel to each other by as shown in Figure 2 two and form with the suitable circular plate of cylinder body 2 internal diameters and the joint 43 in the middle of two circular plates.Described joint 43 fixed covers are placed in piston rod head end 31, wherein, near piston rod head end 31 be the first circular plate 41, from piston rod head end 31 away from is the second circular plate 42.On the first and second circular plates, be equipped with the straight tube hole 44 of running through circular plate.And, on the first and second circular plates, be preferably respectively provided with four straight tube holes 44 of running through circular plate.The diameter in described straight tube hole 44 can be 1 millimeter.
Wherein, the conical damping hole 45 arranging on described the first circular plate 41, its less bottom surface is positioned at the first circular plate 41 on the end face of the second circular plate 42, and larger bottom surface is positioned on the first circular plate 41 other ends, and runs through the first circular plate 41.
Conical damping hole 45 in technique scheme, can provide air-flow buffer when very fast in piston 4 movement velocitys, thereby makes this air spring flexible more flexible, and can normal operation under the larger environment of the temperature difference, there will not be the phenomenon of not opening.
As another of technique scheme, improve, described piston rod 3 and described cylinder body 2 ends are imported and exported the part of joining of sliding and are provided with dust-proof cover 7.
Described dust-proof cover 7 comprises that one is fixedly installed on the built-in seal ring that cylinder body 2 is imported and exported internal end surface, and one is fixedly installed on the external seal ring that cylinder body is imported and exported outside end face.Described built-in seal ring and external seal ring are fixedly installed on respectively inside and outside cylinder body 2 end faces of import and export, and are placed on slidably on piston rod 3, form double-layer sealing structure.
Or, described dust-proof cover can adopt the design of " work " font, described dust-proof cover 7 comprises that one is positioned at external seal ring and the joint sleeve that the inner built-in seal ring and of cylinder body 2 import and export is located at cylinder body 2 import and export outsides, described joint jacket casing is placed in outside piston rod 3, thereby plays seal action.
The dust-proof cover 7 arranging in piston rod 3 turnover cylinder body 2 parts, can prevent that external dust from entering, and has effectively prevented the obstruction that inside of air spring device contamination causes.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (6)
1. an air spring, is characterized in that, comprising:
Piston rod, the tail end of described piston rod is provided with rod end joint, and the head end of described piston rod is fixed on a piston;
Described piston is slidably arranged in a circle tube cylinder, and one end of described cylinder body is provided with the import and export suitable with described piston rod bar footpath;
In described cylinder body, near importing and exporting one end, be provided with sealing guidance system, described cylinder body the other end outside is provided with pipe end joint;
Described piston is comprised of the first circular plate, the second circular plate and joint, and described joint fixed cover is placed in piston rod head end;
Described the first circular plate and the second circular plate are provided with the straight tube hole of running through circular plate;
On described the first circular plate, be also provided with the conical damping hole that runs through circular plate.
2. air spring according to claim 1, is characterized in that:
The straight tube hole arranging on the first circular plate and the second circular plate is four.
3. air spring according to claim 2, is characterized in that:
The conical damping hole arranging on described the first circular plate, its less bottom surface is positioned at the first circular plate on the end face of the second circular plate, and larger bottom surface is positioned on the first circular plate other end.
4. air spring according to claim 3, is characterized in that:
Described piston rod and described cylinder ends are imported and exported the part of joining of sliding and are provided with dust-proof cover.
5. air spring according to claim 4, is characterized in that:
Described dust-proof cover comprises that one is fixedly installed on the built-in seal ring that cylinder body is imported and exported internal end surface, and one is fixedly installed on the external seal ring that cylinder body is imported and exported outside end face.
6. air spring according to claim 4, is characterized in that:
Described dust-proof cover comprises that one is positioned at external seal ring and the joint sleeve that the inner built-in seal ring and of cylinder body import and export is located at cylinder body import and export outside, and described joint jacket casing is placed in outside piston rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420278733.7U CN203939912U (en) | 2014-05-28 | 2014-05-28 | A kind of air spring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420278733.7U CN203939912U (en) | 2014-05-28 | 2014-05-28 | A kind of air spring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203939912U true CN203939912U (en) | 2014-11-12 |
Family
ID=51859226
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420278733.7U Expired - Fee Related CN203939912U (en) | 2014-05-28 | 2014-05-28 | A kind of air spring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203939912U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106801718A (en) * | 2017-03-03 | 2017-06-06 | 锦州立德减振器有限公司 | A kind of combined shock absorber dustproof construction |
| CN111520433A (en) * | 2020-03-31 | 2020-08-11 | 株洲时代新材料科技股份有限公司 | Double-piston viscous damper |
-
2014
- 2014-05-28 CN CN201420278733.7U patent/CN203939912U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106801718A (en) * | 2017-03-03 | 2017-06-06 | 锦州立德减振器有限公司 | A kind of combined shock absorber dustproof construction |
| CN111520433A (en) * | 2020-03-31 | 2020-08-11 | 株洲时代新材料科技股份有限公司 | Double-piston viscous damper |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203939912U (en) | A kind of air spring | |
| CN201991879U (en) | Hydraulic cylinder buffering device | |
| CN103711830A (en) | Novel intelligent damper | |
| CN103267168B (en) | Valve buffer | |
| CN203362943U (en) | Bidirectional damping multi-cavity gas spring | |
| CN205446521U (en) | Utilize power -wasting fluid damping ware of elastomer vibration | |
| CN104251277A (en) | Large-connecting-rod two-grade buffering shock absorber | |
| CN203023523U (en) | Valve | |
| CN203926215U (en) | A kind of oil hydraulic cylinder | |
| CN103075570B (en) | Valve buffer | |
| CN203670582U (en) | Novel intelligent damper | |
| CN203926575U (en) | A kind of vibration damper hermetic oil seal | |
| CN204387002U (en) | A kind of double-telescopic upright post device laid for railway | |
| CN103267167B (en) | Valve buffer | |
| CN205991045U (en) | A kind of pneumatic type fixes corner servo motor | |
| CN206738646U (en) | A kind of dual fail-safe check valve | |
| CN204591870U (en) | Built-in guide rod oil hydraulic cylinder | |
| MX2015015597A (en) | Fluid pressure cylinder. | |
| CN104405724A (en) | Double-telescopic upright post device for laying railway | |
| CN204267420U (en) | A kind of lifting hydraulic jack | |
| CN204878499U (en) | Buffer with multi -level buffer mechanism | |
| CN104405815A (en) | Front shock absorber for motorcycles | |
| CN203822742U (en) | Hollow hydraulic cylinder with built-in sensor | |
| CN204619275U (en) | Treadmill trident damping | |
| CN204025512U (en) | A kind of automobile absorber |
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: 20141112 Termination date: 20150528 |
|
| EXPY | Termination of patent right or utility model |