CN202500935U - Shock absorber used for light motor vehicle - Google Patents
Shock absorber used for light motor vehicle Download PDFInfo
- Publication number
- CN202500935U CN202500935U CN2012200756797U CN201220075679U CN202500935U CN 202500935 U CN202500935 U CN 202500935U CN 2012200756797 U CN2012200756797 U CN 2012200756797U CN 201220075679 U CN201220075679 U CN 201220075679U CN 202500935 U CN202500935 U CN 202500935U
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- CN
- China
- Prior art keywords
- damping spring
- piston rod
- spring
- bobbin
- urceolus
- 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 shock absorber used for a light motor vehicle comprises an end cap, a middle cylindrical tube, a dust prevention cover, an outer cylinder, a piston rod, a buffer spring and a damping spring. The middle cylindrical tube is inserted in the outer cylinder; a seal nut is arranged in the middle of the outer cylinder; a tail end of the outer cylinder is provided with an end portion fixing part; a front end of the outer cylinder is provided with the dust prevention cover; an end portion of the middle cylindrical tube is provided with an end cover; the piston rod is inserted in the middle cylindrical tube; the buffer spring sheathes on a rod body of the piston rod; an outer end of the piston rod is provided with a support end; the damping spring includes an outer damping spring and an inner damping spring; the outer damping spring is arranged between the outer end of the piston rod in a tube body of the middle cylindrical tube and the end cover; the outer damping spring sheathes on the support end of the piston rod; and the inner damping spring which is arranged inside the outer damping spring is buckled between the support end of the piston rod and the end cover. According to the shock absorber of the utility model, the other damping spring is arranged in one damping spring of the existing shock absorber used for the light motor vehicle, such that stability of the shock absorber can be improved.
Description
Technical field
The utility model relates to light-duty vehicle shock-absorption device field, particularly relates to a kind of light-duty vehicle and uses vibration damper.
Background technique
Concussion when vibration damper mainly is used for suppressing bounce-back after the spring shock-absorbing and from the impact on road surface.Through uneven road surface the time, though the shock-absorbing spring can filter the vibrations on road surface, spring self also has to-and-fro motion, and vibration damper is used for suppressing this spring jump.If the vibration damper inner spring is too soft; Vehicle body will jump up and down; Opposite if the vibration damper inner spring will bring too big resistance too firmly, hinder the spring proper functioning, so the hardness of spring is closely bound up with car weight again; Heavier car generally adopts the harder vibration damper of spring, and lighter car generally adopts the softer vibration damper of spring.Because the quality of the traffic tool such as automobile or motorcycle changes with the variation of its carrying capacity, therefore the hardness of required vibration damper preferably could reach the damping requirement with the car weight variation preferably.And the spring in the spring damper that uses at present; Equal sub-thread helical springs for forming by a steel wire coiling, its elastic stiffness coefficient is exactly a constant, can not change with magnitude of load; Therefore the sub-thread helical spring shock absorber can't satisfy the damping requirement under the situation of load change well; And stranded wire helical spring elastic stiffness coefficient is a non-constant, is used for the damping requirement under the situation that vibration damper can satisfy load change, but only uses stranded wire helical spring to substitute the sub-thread spring; There is less stable in stranded wire helical spring, the shortcoming of damaging easily.
The model utility content
The utility model is provided with a damping spring in the damping spring of vibration damper to improve vibration damper stability again at former light-duty vehicle, and for reaching this purpose, the utility model provides a kind of light-duty vehicle to use vibration damper; Comprise end cap, middle bobbin, dust cover, urceolus, piston rod, damping spring and damping spring, said middle bobbin is inserted in the urceolus, and there is sealing nut at said urceolus middle part; The urceolus tail end has the end fixed block, and outer cylinder front end has dust cover, and said intermediate cylinder tube end is equipped with end cap; Be fitted with piston rod in the middle bobbin, said damping spring is a stranded wire helical spring, and damping spring is sleeved on the piston rod body of rod; There is support end said piston rod outer end; Said damping spring comprises outer damping spring and internal damping spring, and said outer damping spring is a stranded wire helical spring, and outer damping spring is arranged between the body inner piston rod outer end and end cap of middle bobbin; Outer damping spring is sleeved on the piston rod support end; Said internal damping spring is the sub-thread helical spring, and the internal damping spring is arranged in the outer damping spring, and said internal damping spring clip is between piston rod support end and end cap.
As between the said intermediate cylinder tube end of a kind of improvement of the utility model and the end cap seal ring being installed; The middle part seal ring is installed between said piston rod middle part and the middle bobbin; Between bobbin afterbody and the piston rod tail seal circle is installed in the middle of said, through the sealing that seal ring can improve whole body is set.
The utility model damping spring adopts stranded wire helical spring with outer damping spring, because the sense of rotation of the rich rope of its steel wire is opposite with spring Hand of spiral, when bearing pressure; Along with the increase of decrement, the degree of tightening of cable wire also can increase to some extent, and the torsional stiffness of cable wire also can increase gradually; Thereby cause the spring [coefficient of to increase; Thereby make its hardness can be according to the variation of vehicle load and deadweight and dynamic change, thereby improved damping effect, in addition owing to be provided with sub-thread internal damping spring in its outer damping spring; Thereby can improve the stability of entire equipment greatly, still can continue to use through the internal damping spring if outer damping spring is damaged.
Description of drawings
Fig. 1 is the utility model structural representation;
Member among the figure is:
1, end cap; 2, seal ring; 3, middle bobbin;
4, dust cover; 5, urceolus; 6, middle part seal ring;
7, piston rod; 7-1, support end; 8, sealing nut;
9, tail seal circle; 10, end fixed block; 11, damping spring;
12, outer damping spring; 13, internal damping spring;
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is done detailed explanation.
The utility model is provided with a damping spring in the damping spring of vibration damper to improve vibration damper stability again at former light-duty vehicle.
Provide structural representation a kind of light-duty vehicle as shown in Figure 1 to use vibration damper as a kind of specific embodiment the utility model of the utility model, comprise end cap 1, middle bobbin 3, dust cover 4, urceolus 5, piston rod 7, damping spring 11 and damping spring, said middle bobbin 3 is inserted in the urceolus 5; There is sealing nut 8 at said urceolus 5 middle parts, and urceolus 5 tail ends have end fixed block 10, and urceolus 5 front ends have dust cover 4; Bobbin 3 ends are equipped with end cap 1 in the middle of said; Be fitted with piston rod 7 in the middle bobbin 3, between said middle bobbin 3 ends and the end cap 1 seal ring 2 be installed, middle part seal ring 6 is installed between said piston rod 7 middle parts and the middle bobbin 3; Between bobbin 3 afterbodys and the piston rod 7 tail seal circle 9 is installed in the middle of said; Through the sealing that seal ring can improve whole body is set, said damping spring 11 is a stranded wire helical spring, and damping spring 11 is sleeved on piston rod 7 bodies of rod; There is support end 7-1 said piston rod 7 outer ends; Said damping spring comprises outer damping spring 12 and internal damping spring 13, and said outer damping spring 12 is a stranded wire helical spring, and outer damping spring 12 is arranged between body inner piston rod 7 outer ends and end cap 1 of middle bobbin 3; Outer damping spring 12 is sleeved on the piston rod 7 support end 7-1; Said internal damping spring 13 is the sub-thread helical spring, and internal damping spring 13 is arranged in the outer damping spring 12, and said internal damping spring 13 is stuck between piston rod 7 support end 7-1 and the end cap 1.
The utility model damping spring 11 adopts stranded wire helical spring with outer damping spring 12, because the sense of rotation of the rich rope of its steel wire is opposite with spring Hand of spiral, when bearing pressure; Along with the increase of decrement, the degree of tightening of cable wire also can increase to some extent, and the torsional stiffness of cable wire also can increase gradually; Thereby cause the spring [coefficient of to increase; Thereby make its hardness can be according to the variation of vehicle load and deadweight and dynamic change, thereby improved damping effect, in addition owing to be provided with sub-thread internal damping spring 13 in its outer damping spring 12; Thereby can improve the stability of entire equipment greatly, still can continue to use through internal damping spring 13 if outer damping spring 12 is damaged.
The above; It only is the preferred embodiment of the utility model; Be not to be the utility model to be done the restriction of any other form, and, still belong to the utility model scope required for protection according to any modification or equivalent variations that the technical spirit of the utility model is done.
Claims (4)
1. a light-duty vehicle is used vibration damper; Comprise end cap (1), middle bobbin (3), dust cover (4), urceolus (5), piston rod (7), damping spring (11) and damping spring, said middle bobbin (3) is inserted in the urceolus (5), and there is sealing nut (8) at said urceolus (5) middle part; Urceolus (5) tail end has end fixed block (10); Urceolus (5) front end has dust cover (4), and said middle bobbin (3) end is equipped with end cap (1), is fitted with piston rod (7) in the middle bobbin (3); It is characterized in that: said damping spring (11) is a stranded wire helical spring; Damping spring (11) is sleeved on piston rod (7) body of rod, and there is support end (7-1) said piston rod (7) outer end, and said damping spring comprises outer damping spring (12) and internal damping spring (13); Said outer damping spring (12) is a stranded wire helical spring; Between body inner piston rod (7) outer end and end cap (1) of bobbin (3), outer damping spring (12) was sleeved on piston rod (7) support end (7-1) in the middle of outer damping spring (12) was arranged on, and said internal damping spring (13) is the sub-thread helical spring; Internal damping spring (13) is arranged in the outer damping spring (12), and said internal damping spring (13) is stuck between piston rod (7) support end (7-1) and the end cap (1).
2. a kind of light-duty vehicle according to claim 1 is used vibration damper, it is characterized in that: between bobbin (3) end and the end cap (1) seal ring (2) is installed in the middle of said.
3. a kind of light-duty vehicle according to claim 1 is used vibration damper, it is characterized in that: middle part seal ring (10) is installed between said piston rod (7) middle part and the middle bobbin (3).
4. a kind of light-duty vehicle according to claim 1 is used vibration damper, it is characterized in that: between bobbin (3) afterbody and the piston rod (7) tail seal circle (9) is installed in the middle of said.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200756797U CN202500935U (en) | 2012-03-02 | 2012-03-02 | Shock absorber used for light motor vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200756797U CN202500935U (en) | 2012-03-02 | 2012-03-02 | Shock absorber used for light motor vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202500935U true CN202500935U (en) | 2012-10-24 |
Family
ID=47037549
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200756797U Expired - Fee Related CN202500935U (en) | 2012-03-02 | 2012-03-02 | Shock absorber used for light motor vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202500935U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106595732A (en) * | 2016-11-22 | 2017-04-26 | 何英 | Shockproof instrument |
-
2012
- 2012-03-02 CN CN2012200756797U patent/CN202500935U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106595732A (en) * | 2016-11-22 | 2017-04-26 | 何英 | Shockproof instrument |
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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: 20121024 Termination date: 20130302 |