CN202531714U - Shock absorber - Google Patents
Shock absorber Download PDFInfo
- Publication number
- CN202531714U CN202531714U CN2012200873714U CN201220087371U CN202531714U CN 202531714 U CN202531714 U CN 202531714U CN 2012200873714 U CN2012200873714 U CN 2012200873714U CN 201220087371 U CN201220087371 U CN 201220087371U CN 202531714 U CN202531714 U CN 202531714U
- Authority
- CN
- China
- Prior art keywords
- cylinder body
- floating piston
- piston
- spring
- shock absorber
- 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 a shock absorber which comprises an upper cylinder body, a lower cylinder body, a floating piston, a piston rod and an air reservoir, wherein a limiting groove is arranged between the upper cylinder body and the lower cylinder body, an air vent and an ventilation gap are arranged at the bottom of the whole cylinder body formed by the upper cylinder body and the lower cylinder body, nitrogen is fully filled in a gap between the air reservoir and the whole cylinder body, a piston ring and a guider are arranged between the piston rod and the whole cylinder body, a dust protecting hood is arranged at the top of the whole cylinder, the upper surface and the lower surface of the floating piston are respectively provided with one spring, the whole cylinder body and the spring are arranged in a coaxial way, multiple springs on the upper surface of the floating piston and multiple springs on the lower surface of the floating piston are same in number, and the springs are arranged around the floating piston in a circle shape. According to the shock absorber, under very large outside impulsive force, when the floating piston moves upwards or downwards within a relatively large range, the springs can prop against the top or the bottom of the cylinder body of the shock absorber, so that the speed and the range of the upward movement or the downward movement of the floating piston can be slowed down, the severe movement of the floating piston can be avoided so as to prevent the condition that the shock absorber is in failure.
Description
Technical field
The utility model relates to the vibration damper field, relates in particular to a kind of vibration damper that is provided with spring in the floating piston top and bottom.
Background technique
Vibration damper is the indispensable part of automobile, and the cushioning effect of traditional shock absorber mainly is to move up and down the drive floating piston through piston rod to move up and down, and external shock or impact are discharged, and reaches the effect of damping.When very big, floating piston moves up and down distance and strengthens in foreign impacts or vibrations, and speed is bigger, makes the vibration damper serious wear easily, even causes losing efficacy.
Summary of the invention
In order to overcome the above problems, the utility model discloses a kind of vibration damper.This vibration damper can prevent effectively that foreign impacts is too big, causes floating piston to move acutely, vibration damper serious wear, the problem that the life-span shortens.
Vibration damper; Comprise the peripheral gas cylinder of floating piston, piston rod and cylinder body of the top cylinder body that is full of damping oil, the bottom cylinder body that is full of nitrogen, cylinder interior, be provided with restraining groove between top cylinder body and the bottom cylinder body, cylinder base is provided with vent and airspace; Space between gas cylinder and the cylinder body is full of nitrogen; Be provided with piston ring, guider between piston rod and the cylinder body, the cylinder body top is provided with dust-proof cover, it is characterized in that said floating piston upper and lower surface is provided with spring.
The spring of floating piston top and bottom respectively is one, spring and the coaxial setting of cylinder body.
Quantity such as the spring of floating piston top and bottom is a plurality of, spring is around the rounded arrangement in center of floating piston.
When foreign impacts was too big, floating piston moved up and down acutely, when floating piston moves up or down distance when very big; Spring will touch the top or the bottom of cylinder body, and the spring buffer impact force makes floating piston slow down travelling speed; Shorten displacement distance, the vibration damper life-span is prolonged.
Description of drawings
Fig. 1 is the structural representation of vibration damper,
Fig. 2 is the plan view of floating piston,
Accompanying drawing is indicated tabulation: 1-piston rod, 2-dust-proof cover, 3-guider, 4-piston ring, 5-top cylinder body; 6-damping oil, 7-gas cylinder, 8-restraining groove, 9-floating piston, 10-bottom cylinder body; 11-nitrogen, 12-vent, 13-airspace, 14-spring.
Embodiment
Below in conjunction with accompanying drawing and embodiment, further illustrate the utility model.
Vibration damper; The peripheral gas cylinder 7 of floating piston 9, piston rod 1 and cylinder body that comprises the top cylinder body 5 that is full of damping oil, the bottom cylinder body 10 that is full of nitrogen, cylinder interior; Be provided with restraining groove 8 between top cylinder body 5 and the bottom cylinder body 10; Cylinder base is provided with vent 12 and airspace 13, and the space between gas cylinder 7 and the cylinder body is full of nitrogen 11, is provided with piston ring 4, guider 3 between piston rod 1 and the cylinder body; The cylinder body top is provided with dust-proof cover 2, and said floating piston 9 upper and lower surfaces are provided with spring 14.The spring 14 of floating piston 9 top and bottom respectively is one, spring 14 and the coaxial setting of cylinder body.Quantity such as the spring 14 of floating piston 9 top and bottom is a plurality of, spring is around the rounded arrangement in center of floating piston 9.
There are impact or vibrations in the external world; Floating piston 9 will move up and down, and the generation damping force is slowed down and absorbed impact or vibrations, when extraneous impact force is too big; The mobile degree of floating piston 9 can strengthen; The power that need bear also can strengthen, and the vibration damper under the load is easy to produce heavy wear like this, even causes defective shock absorber.This vibration damper; Under the very big situation of extraneous impulse force; Floating piston 9 moves up or down when big, and travelling speed and degree that floating piston 9 continues are up or down slowed down in spring 14 can the conflict top or the bottom of vibration damper cylinder body; It is too violent to avoid floating piston 9 to move, and causes defective shock absorber.
Claims (3)
1. vibration damper; Comprise the peripheral gas cylinder of floating piston, piston rod and cylinder body of the top cylinder body that is full of damping oil, the bottom cylinder body that is full of nitrogen, cylinder interior, be provided with restraining groove between top cylinder body and the bottom cylinder body, cylinder base is provided with vent and airspace; Space between gas cylinder and the cylinder body is full of nitrogen; Be provided with piston ring and guider between piston rod and the cylinder body, the cylinder body top is provided with dust-proof cover, it is characterized in that said floating piston upper and lower surface is provided with spring.
2. vibration damper according to claim 1 is characterized in that the spring of said floating piston top and bottom respectively is one, spring and the coaxial setting of cylinder body.
3. quantity such as vibration damper according to claim 1, the spring that it is characterized in that said floating piston top and bottom are a plurality of, spring is around the rounded arrangement in center of floating piston.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200873714U CN202531714U (en) | 2012-03-09 | 2012-03-09 | Shock absorber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200873714U CN202531714U (en) | 2012-03-09 | 2012-03-09 | Shock absorber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202531714U true CN202531714U (en) | 2012-11-14 |
Family
ID=47132901
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200873714U Expired - Fee Related CN202531714U (en) | 2012-03-09 | 2012-03-09 | Shock absorber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202531714U (en) |
-
2012
- 2012-03-09 CN CN2012200873714U patent/CN202531714U/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: 20121114 Termination date: 20130309 |