CN2625179Y - Rear shock-absorber for sedan - Google Patents
Rear shock-absorber for sedan Download PDFInfo
- Publication number
- CN2625179Y CN2625179Y CN 03232383 CN03232383U CN2625179Y CN 2625179 Y CN2625179 Y CN 2625179Y CN 03232383 CN03232383 CN 03232383 CN 03232383 U CN03232383 U CN 03232383U CN 2625179 Y CN2625179 Y CN 2625179Y
- Authority
- CN
- China
- Prior art keywords
- valve
- circulation
- rear shock
- shock absorber
- compression
- 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 - Lifetime
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Abstract
The utility model relates to an improved structure for car rear damper, which is characterized in that: a circulation valve system of a piston rod props closely to a circulation valve element via a circulation leaf spring; the circulation leaf spring is configured with claw shape; a gasket is positioned at a compression valve piece of a compression valve; the components in the valve system are connected solidly via valve rod riveting; a convex platform is positioned at the middle on the working surface of the gasket; the surface under the convex platform is configured with an oblique platform with high internal side and low external side; an internal valve line is lower than an external valve line in a compression valve stand. With the advantages of simple and feasible structure, low production cost and reliable sealing of valve system, the utility model is able to effectively prevent the early stage invalidity resulted from loosened connection.
Description
Technical field
The utility model relates to a kind of car bumper, particularly a kind of improvement of car rear shock absorber structure.
Background technology
The car rear shock absorber is an important component part in the passenger-car chassis system, and its effect mainly is the vibration that absorbs and suppress vehicle body, alleviates the high vibration that vehicle produces when uneven road surface travels, and guarantees vehicle ride comfort under steam and occupant's traveling comfort.The car bumper of prior art, stream in its piston rod branch unit system valve system adopts the circulation valve block directly to seal, and this structure is after being subjected to reciprocal hydraulic efficiency impact, and the circulation valve block holds because of fatiguability and produces distortion very much, thereby the reduction sealing property causes the early failure of product; Secondly, the compression valve structure adopts screw thread to tighten connection, so it is subjected to the influence of the screw thread width of cloth bigger, and requirement height to part processing precision, cost also improves thereupon, and when batch manufacturing the compressive force instability, product in use is subjected to the hydraulic efficiency impact of reciprocal load, screw thread easily produces loosening, and makes whole bumper product early failure.
Summary of the invention
The utility model mainly is to solve existing in prior technology: produce distortion because of the circulation valve block in the piston rod branch unit holds because of fatiguability very much, thereby reduction sealing property, the early failure that causes product, and the compression valve branch unit adopts screw thread to tighten connection, compressive force instability when batch manufacturing, product in use easy generation of screw thread becomes flexible, and makes the deficiency of whole bumper product early failure.
Above-mentioned technical matters of the present utility model is mainly solved by following technical proposals: the flowing valve system of piston rod adopts the circulation spring leaf to hold out against the circulation valve block.
As preferably, also have packing ring outside the compression valve block of compression valve, valve is that the part connection is the fixed connection structure that valve rod revolves riveting.
As preferably, be boss in the middle of the driving surface of packing ring, the face under the boss is low inside and high outside inclined-plane.
As preferably, the internal valve line of compression valve valve seat is lower than outer valve line.
As preferably, the circulation spring leaf is a claw type.
Therefore, the utlity model has simple and reasonable for structurely, productive costs is low, and valve is that sealing property is reliable, can effectively prevent simultaneously because of connecting the loosening early failure that produces, and has improved product service life.
Description of drawings
Accompanying drawing 1 is a piston rod branch unit constructional drawing of the present utility model;
Accompanying drawing 2 is compression valve branch unit structure of the present utility model (amplification) figure;
Accompanying drawing 3 is compression valve gasket construction (amplification) figure of Fig. 2;
Accompanying drawing 4 is piston rod flowing valve spring leaf side-looking (amplification) figure of Fig. 1;
Accompanying drawing 5 is that the piston rod flowing valve spring leaf of Fig. 1 is faced (amplification) figure;
Accompanying drawing 6 is valve seat front elevations of Fig. 2.
Below by embodiment, and in conjunction with the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment: the car rear shock absorber comprises spacing bump rubber, piston rod branch unit clutch release slave cylinder, compression valve branch unit, fuel tank branch unit, rubber bush assembly; As shown in Figure 1, piston rod branch unit 16 comprises flowing valve limiting device 2, restore bearing cap shim 3, flowing valve spring leaf 4, circulation valve block 5 comes the Lift of restricted circulation valve block 5 by flowing valve limiting device 2, by the flowing valve spring leaf shown in Fig. 4,54 like the claw type structure, act on the stretch pressure of flowing valve spring leaf 4, the valve block 5 of guaranteeing to circulate does not produce distortion under the effect of reciprocal hydraulic coupling.As shown in Figure 2, compression valve branch unit 19 comprises valve rod 6, compression valve seat 9, and compression throttling valve block 13, compression valve block 12, packing ring 11 and valve rod 6 take to revolve the connection structure of riveting; The outer valve line face of compression valve seat 9 is higher than internal valve line face, in order to improving leak tightness; Owing to adopt and to revolve the fixed connection structure of riveting, making after the valve rod 6 riveted joint distortion valve is that part is connected firmly, and product quality is reached more than 98%, has prevented effectively because of connecting the loosening product early failure that produces; The compression valve packing ring 11 as shown in Figure 3, adopt cold-extrusion technology, and the centre of its driving surface is a boss 14, and the face under the boss is low inside and high outside inclined-plane 15, and it is stable that liquid stream is flowed.During work,, promptly compress, circulate, restore, compensate because the crank motion of piston rod makes whole bumper form four valve systems, when piston rod moved downward, compression valve, flowing valve were opened, and produced compression damping, when piston rod up moved, rebuilt valve, throttle compensating valve were opened, and produced to restore resistance.
The utility model has been avoided the early failure of valve system owing to take abovementioned technology, has improved product service life, is specially adapted to the rear shock absorber of Jetta car.
Claims (6)
1. a car rear shock absorber contains guides at cylinder barrel, spacing bump rubber, and piston rod, compression valve is characterized in that: the flowing valve system of piston rod (16) adopts circulation spring leaf (4) to hold out against circulation valve block (5).
2. car rear shock absorber according to claim 1 is characterized in that: compression valve block (12) outside of compression valve (19) also has packing ring (11), and valve is that the part connection is that valve rod (6) revolves the fixed connection structure of riveting.
3. car rear shock absorber according to claim 1 and 2 is characterized in that: be boss (14) in the middle of the driving surface of described packing ring (11), the face under the boss is low inside and high outside inclined-plane (15).
4. car rear shock absorber according to claim 1 and 2 is characterized in that: the internal valve line (17) of described valve seat (9) is lower than outer valve line (18).
5. car rear shock absorber according to claim 3 is characterized in that: the internal valve line (17) of described valve seat (9) is lower than outer valve line (18).
6. car rear shock absorber according to claim 1 is characterized in that: described circulation spring leaf (4) is a claw type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03232383 CN2625179Y (en) | 2003-06-18 | 2003-06-18 | Rear shock-absorber for sedan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03232383 CN2625179Y (en) | 2003-06-18 | 2003-06-18 | Rear shock-absorber for sedan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2625179Y true CN2625179Y (en) | 2004-07-14 |
Family
ID=34248588
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03232383 Expired - Lifetime CN2625179Y (en) | 2003-06-18 | 2003-06-18 | Rear shock-absorber for sedan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2625179Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100549454C (en) * | 2005-09-07 | 2009-10-14 | 萱场工业株式会社 | The damping force generating mechanism of hydraulic bjuffer |
| CN105020317A (en) * | 2015-07-23 | 2015-11-04 | 瑞安市朝日汽车部件有限公司 | Telescopic shock absorber |
-
2003
- 2003-06-18 CN CN 03232383 patent/CN2625179Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100549454C (en) * | 2005-09-07 | 2009-10-14 | 萱场工业株式会社 | The damping force generating mechanism of hydraulic bjuffer |
| CN105020317A (en) * | 2015-07-23 | 2015-11-04 | 瑞安市朝日汽车部件有限公司 | Telescopic shock absorber |
| CN105020317B (en) * | 2015-07-23 | 2017-11-17 | 瑞安市朝日汽车部件有限公司 | Telescopic shock absorber |
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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 | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20130618 Granted publication date: 20040714 |