CN204852141U - Bumper shock absorber sealing structure - Google Patents
Bumper shock absorber sealing structure Download PDFInfo
- Publication number
- CN204852141U CN204852141U CN201520540567.8U CN201520540567U CN204852141U CN 204852141 U CN204852141 U CN 204852141U CN 201520540567 U CN201520540567 U CN 201520540567U CN 204852141 U CN204852141 U CN 204852141U
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- CN
- China
- Prior art keywords
- oil sealing
- rod
- atrium
- guider
- support chamber
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- 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 bumper shock absorber sealing structure, including director and oil blanket, the director passes through the central through hole to be installed on the body of rod of piston rod, and the oil blanket is located between director and the piston rod, and the central through hole inner wall of director is equipped with the rampart, this rampart hole and body of rod clearance fit, and rampart one side is equipped with the annular groove, inlay in this annular groove and be equipped with the bush, but the rampart opposite side has the fuel feeding seals the atrium that holds, and during the oil blanket inlayed and locates this atrium, the atrium inner wall was equipped with the bearing chamber, and the oil blanket edge is arranged in this bearing chamber. The utility model has the advantages of effect of shock absorbers is good, stable in structure.
Description
Technical field
The utility model relates to the vibration damper technical field in shockproof system, especially a kind of vibration damper seal structure.
Background technique
Vehicle is when rough ride, and the piston rod in vibration damper constantly does fore and aft motion in cylinder body, and the damping oil in cylinder body constantly flows back and forth, cushion impact forces, slows down degree of jolting and plays cushioning effect, increases the stationarity that vehicle travels.Telescopic shock absorber generally includes cylindrical shell, the piston rod with hydraulic pressure cavity, one end that piston rod stretches into cylindrical shell is arranged with piston assembly, the other end of piston rod is connected with fitting seat, piston rod is provided with oil sealing and guider near one end of fitting seat, because this oil seal lip place is easily out of shape, causes seal failure or cause the phenomenons such as leakage of oil; The connecting end outer circumferential face of piston rod is provided with L shape step surface, fitting seat abuts with this L shape step surface and forms plane-plane contact, but because these two surface of contact are in mutual vertical relation, after the connecting end of piston rod to be threaded with fitting seat and to put in place, can be limited it axially displaced, but due to the surface of contact between fitting seat and L shape step surface can only be spacing in the axial direction, cannot carry out spacing to its gap on radial end face, in use for some time, the potential safety hazard that piston rod is deviate from can still be there is.
Model utility content
In order to overcome the deficiencies in the prior art, the utility model provides good, the constitutionally stable vibration damper seal structure of a kind of shock-proof effect.
To achieve these goals, the technical solution adopted in the utility model is: a kind of vibration damper seal structure, comprise guider and oil sealing, guider is installed on the body of rod of piston rod by central through bore, oil sealing is between guider and piston rod, it is characterized in that: the central through bore inwall of described guider is provided with ring wall, this ring wall endoporus and body of rod Spielpassung, ring wall side is provided with annular groove, lining is embedded with in this annular groove, ring wall opposite side has the atrium that can hold for oil sealing, oil sealing is embedded in this atrium, atrium inwall is provided with support chamber, oil sealing edge is arranged in this support chamber.
In said structure, guider and oil sealing are installed on the opening end of dampener sleeve, and guider is sheathed on the piston rod body of rod, guider central through bore is greater than body of rod diameter, this guider forms radial location by the ring wall of central through bore inwall with the body of rod and coordinates, this ring wall is arranged in the middle part of guider, lining is arranged on ring wall side inwardly, lining is arranged between guider and the body of rod, reduce fretting wear, oil sealing is arranged in ring wall atrium outwardly, oil sealing is provided with the edge expanded outwardly, by the transition of cambered surface profile between this edge and oil sealing body, this edge and cambered surface changeover portion are arranged in this support chamber, not only there is support supporting effect in this support chamber to oil sealing, make its not easily interior notch distortion, axially there is good positioning action to it simultaneously, its axial slip can be prevented, improve structure stability, ensure sealing uniformity.
As further setting of the present utility model, the part that described oil sealing edge is arranged in support chamber is embedded with ring washer, oil sealing edge is provided with gasket recess, the opening side of this gasket recess is towards support chamber sidewall, and ring washer is embedded in gasket recess and the local of ring washer and contacts with support chamber.
In said structure, this is sheathed on the ring washer of oil sealing its periphery, oil sealing is had to the effect supporting and prevent compressive deformation, improve its non-deformability, this ring washer is installed on after in gasket recess simultaneously, and directly and support chamber sidewall contact, this oil sealing and ring washer are that two kinds of different sealing materials are made to its end face being exposed to gasket recess opening side, they are different from the stiction formed between support chamber separately, can improve the installation stability of oil sealing.
As further setting of the present utility model, described oil sealing one end is arranged in this atrium, the oil sealing the other end has the epipharynx limit of stretching out and contacting with the body of rod outside atrium, leaves tapering space between this epipharynx limit and body of rod, and described gasket recess position is corresponding with this tapering space to be arranged.
In said structure, air is full of between this epipharynx limit and body of rod, the adsorption force between epipharynx limit and the body of rod can be strengthened, promote the sealability between oil sealing epipharynx limit and the body of rod, this tapering space is reduced towards both sides gradually by centre simultaneously, when packing ring is to when having a squeezing action in the middle part of this tapering space, area of contact between the epipharynx limit and the body of rod of tapering space end is increased, improves sealing effect further.
As further setting of the present utility model, one end outer circumferential face that described oil sealing is arranged in atrium is embedded with bail wire.
In said structure, this bail wire makes to form close contact between oil sealing medial extremity and the body of rod, reduces radial displacement, ensures that mounting structure is firm.
Below in conjunction with accompanying drawing, the utility model is further described.
Accompanying drawing explanation
Accompanying drawing 1 is the structural representation of the utility model specific embodiment vibration damper;
Accompanying drawing 2 is the mounting structure schematic diagram of the utility model specific embodiment piston rod and guider and oil sealing;
Accompanying drawing 3 is the enlarged view of A in the utility model specific embodiment accompanying drawing 1;
The body of rod 1, piston assembly 2, guider 3, ring wall 31, annular groove 32, atrium 33, support chamber 34, oil sealing 4, oil sealing body 40, edge 41, gasket recess 411, cambered surface profile 42, epipharynx limit 43, tapering space 44, lining 5, ring washer 6, bail wire 7, sleeve 8.
Embodiment
Specific embodiment of the utility model is vibration damper as Figure 1-3, comprise the body of rod 1, one end that the body of rod 1 stretches into dampener sleeve 8 is provided with piston assembly 2, the body of rod 1 the other end is connected with fitting seat, the body of rod 1 is provided with seal structure near one end of fitting seat, this seal structure comprises guider 3 and oil sealing 4, guider 3 is provided with central through bore, this central through bore inwall is provided with ring wall 31, this ring wall 31 endoporus and the body of rod 1 Spielpassung, ring wall 31 side is provided with annular groove 32, lining 5 is embedded with in this annular groove 32, ring wall 31 opposite side has the atrium 33 that can hold for oil sealing 4, oil sealing 4 is embedded in this atrium 33, atrium 33 inwall is provided with support chamber 34, oil sealing 4 edge 41 is arranged in this support chamber 34.
Above-mentioned guider 3 is sheathed on this body of rod 1, guider 3 central through bore is greater than the body of rod 1 diameter, this guider 3 forms radial location by the ring wall 31 of central through bore inwall with the body of rod 1 and coordinates, this ring wall 31 is arranged in the middle part of guider 3, lining 5 is arranged on ring wall 31 side inwardly, lining 5 is arranged between guider 3 and the body of rod 1, reduce fretting wear, oil sealing 4 is arranged in ring wall 31 atrium 33 outwardly, oil sealing 4 is provided with the edge 41 expanded outwardly, by cambered surface profile 42 transition between this edge 41 and oil sealing body 40, this edge 41 and cambered surface profile 42 changeover portion are arranged in this support chamber 34, not only there is support supporting effect in this support chamber 34 to oil sealing 4, make its not easily interior notch distortion, axially there is good positioning action to it simultaneously, its axial slip can be prevented, improve structure stability, ensure sealing uniformity.
The part that above-mentioned oil sealing 4 edge 41 is arranged in support chamber 34 is embedded with ring washer 6, oil sealing 4 edge 41 is provided with gasket recess 411, the opening side of this gasket recess 411 is towards support chamber 34 sidewall, and ring washer 6 is embedded in the gasket recess 411 and local of ring washer 6 and contacts with support chamber 34.
The above-mentioned ring washer 6 being sheathed on periphery, oil sealing 4 edge 41, oil sealing 4 is had to the effect supporting and prevent compressive deformation, improve its non-deformability, this ring washer 6 is installed on after in gasket recess 411 simultaneously, its end face being exposed to gasket recess 411 opening side directly and support chamber 34 sidewall contact, this oil sealing 4 is that two kinds of different sealing materials are made with ring washer 6, and they are different from the stiction formed between support chamber 34 separately, can improve the installation stability of oil sealing 4.
Above-mentioned oil sealing 4 one end is arranged in this atrium 33, and oil sealing 4 the other end has the epipharynx limit 43 of stretching out and contacting with the body of rod 1 outside atrium 33, leaves tapering space 44 between this epipharynx limit 43 and body of rod 1, and gasket recess 411 position is corresponding with this tapering space 44 to be arranged.Air is full of between this epipharynx limit 43 and body of rod 1, the adsorption force between epipharynx limit 43 and the body of rod 1 can be strengthened, promote the sealability between oil sealing 4 epipharynx limit 43 and the body of rod 1, this tapering space 44 is reduced towards both sides gradually by centre simultaneously, when packing ring is to when having a squeezing action in the middle part of this tapering space 44, area of contact between the epipharynx limit 43 and the body of rod 1 of tapering space 44 end is increased, improves sealing effect further.
One end outer circumferential face that above-mentioned oil sealing 4 is arranged in atrium 33 is embedded with bail wire 7.This bail wire 7 makes to form close contact between oil sealing 4 medial extremity and the body of rod 1, reduces radial displacement, ensures that mounting structure is firm.
The utility model is not limited to above-mentioned embodiment; persons skilled in the art are content disclosed in the utility model; other multiple embodiments can be adopted to implement of the present utility model; or every employing project organization of the present utility model and thinking; do simple change or change, all fall into protection domain of the present utility model.
Claims (4)
1. a vibration damper seal structure, comprise guider and oil sealing, guider is installed on the body of rod of piston rod by central through bore, oil sealing is between guider and piston rod, it is characterized in that: the central through bore inwall of described guider is provided with ring wall, this ring wall endoporus and body of rod Spielpassung, ring wall side is provided with annular groove, lining is embedded with in this annular groove, ring wall opposite side has the atrium that can hold for oil sealing, oil sealing is embedded in this atrium, and atrium inwall is provided with support chamber, and oil sealing edge is arranged in this support chamber.
2. vibration damper seal structure according to claim 1, it is characterized in that: the part that described oil sealing edge is arranged in support chamber is embedded with ring washer, oil sealing edge is provided with gasket recess, the opening side of this gasket recess is towards support chamber sidewall, and ring washer is embedded in gasket recess and the local of ring washer and contacts with support chamber.
3. vibration damper seal structure according to claim 2, it is characterized in that: described oil sealing one end is arranged in this atrium, the oil sealing the other end has the epipharynx limit of stretching out and contacting with the body of rod outside atrium, leave tapering space between this epipharynx limit and body of rod, described gasket recess position is corresponding with this tapering space to be arranged.
4. vibration damper seal structure according to claim 3, is characterized in that: one end outer circumferential face that described oil sealing is arranged in atrium is embedded with bail wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520540567.8U CN204852141U (en) | 2015-07-23 | 2015-07-23 | Bumper shock absorber sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520540567.8U CN204852141U (en) | 2015-07-23 | 2015-07-23 | Bumper shock absorber sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204852141U true CN204852141U (en) | 2015-12-09 |
Family
ID=54742691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520540567.8U Expired - Fee Related CN204852141U (en) | 2015-07-23 | 2015-07-23 | Bumper shock absorber sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204852141U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106825172A (en) * | 2016-12-28 | 2017-06-13 | 隆昌山川精密焊管有限责任公司 | A kind of shock absorber rolls mouth-sealing method |
-
2015
- 2015-07-23 CN CN201520540567.8U patent/CN204852141U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106825172A (en) * | 2016-12-28 | 2017-06-13 | 隆昌山川精密焊管有限责任公司 | A kind of shock absorber rolls mouth-sealing method |
| CN106825172B (en) * | 2016-12-28 | 2018-09-28 | 隆昌山川精密焊管有限责任公司 | A kind of damper rolling mouth-sealing method |
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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: 20151209 Termination date: 20210723 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |