CN203702971U - Piston assembly for automotive shock absorber - Google Patents
Piston assembly for automotive shock absorber Download PDFInfo
- Publication number
- CN203702971U CN203702971U CN201420096929.4U CN201420096929U CN203702971U CN 203702971 U CN203702971 U CN 203702971U CN 201420096929 U CN201420096929 U CN 201420096929U CN 203702971 U CN203702971 U CN 203702971U
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- Prior art keywords
- piston
- passage
- piston assembly
- valve
- valve block
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- 239000006096 absorbing agent Substances 0.000 title claims abstract description 43
- 230000035939 shock Effects 0.000 title abstract description 10
- 238000012856 packing Methods 0.000 claims description 16
- 239000012530 fluid Substances 0.000 description 30
- 238000000034 method Methods 0.000 description 5
- 238000013461 design Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 238000013475 authorization Methods 0.000 description 2
- 210000000078 claw Anatomy 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000009514 concussion Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
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- Fluid-Damping Devices (AREA)
Abstract
The utility model provides a piston assembly for an automotive shock absorber and belongs to the technical field of automobile production. The piston assembly for the automotive shock absorber solves the problems that the existing shock absorber piston structure is complex in structure and high in cost. The piston assembly for the automotive shock absorber comprises a piston rod ad a piston; the piston sleeves the bottom of the piston rod; the piston comprises an annular body; the upper portion of the annular body is provided with a valve block and a valve pad which sleeve the piston rod; a channel I which penetrates the annular body is formed inside the annular body; the lateral portion of the valve block is abut against one end of the channel I; the valve block which is elastic is compressed between the valve pad and the body; an incline portion I is arranged between the lateral portion and the end surface of the valve pad. The piston assembly for the automotive shock absorber has the advantages of being simple in structure, high in practicability, low in cost and the like.
Description
Technical field
The utility model belongs to field of automobile, relates to a kind of piston assembly of automobile absorber.
Background technique
For the vibration that makes vehicle frame and vehicle body decays rapidly, improve smoothness and the travelling comfort of automobile running, vibration damper is generally all housed on automobile suspension system, what on automobile, extensively adopt is two-way function telescopic shock absorber.Concussion when vibration damper is mainly used to suppress rebound after spring shock-absorbing and from the impact on road surface, in this process, vibration damper is realized the conversion of energy by the to-and-fro motion of fluid in piston, well imagine, the structure of piston is most important, some inappropriate designs can weaken the using effect of vibration damper, can cause what is more defective shock absorber.
For example Chinese patent literature data discloses auto absorber piston valve [application number 201320050210.2, notice of authorization number: CN203051602U], this auto absorber piston valve is fixedly connected on the bottom of automobile absorber inner piston rod, piston valve comprises the nut of valve body and fixed valve body, piston rod is provided with a step, between the upper end of valve body and step, be provided with the first support pad, between the lower end of valve body and nut, be provided with the second support pad, in valve body, be provided with and the homoaxial oil inlet passage of piston rod and oil discharge passage, the upper end of oil inlet passage and oil discharge passage is provided with the first shim pack, the lower end of oil inlet passage and oil discharge passage is provided with the second shim pack, the first shim pack and the second shim pack are made up of some pads, each pad is provided with some perforates or breach.
It is shim pack that this kind of auto absorber piston valve is provided with valve, by changing shim pack specification, the damping force size of control vibration damper that can be more accurate in the time that piston rod moves with friction speed.But in this kind of structure, between the first support pad and the first shim pack, arrange and leave multi-stage stairs, after repeatedly using, easily cause pad bending dislocation, cannot reach ideal effect.
And for example Chinese patent literature data discloses a kind of vehicle shock absorber flowing valve [application number 201220506218.0; Notice of authorization number: CN202851801U], this kind of flowing valve comprises circulation valve block, it also comprises circulation valve seat and spring, the inner side of circulation valve block has the claw of some protrusions, and circulation valve seat is " protruding " font, and the neck of its protrusion has annular groove, and the outer end of its neck is annular gear edge, when spring housing is contained in after the neck of circulation valve seat, rotate after pressing down spring by circulation valve block, the claw of the valve block that makes to circulate with the gear of the valve seat that circulates along phase clamping.
This kind of flowing valve is arranged on piston and uses, and in the process using, circulation valve block and spring easily deform in the situation that access times are more, thereby flowing valve cannot be used.
Summary of the invention
The purpose of this utility model is for the above-mentioned problems in the prior art, and a kind of piston assembly of automobile absorber is provided, and this piston structure is simple, and practicability is high, and cost is low, has solved existing piston structure of shock absorber complexity, the problem that cost is high.
The purpose of this utility model can realize by following technical proposal: a kind of piston assembly of automobile absorber, described piston assembly comprises piston rod and piston, described piston sleeve is located at the bottom of piston rod, described piston comprises ringwise body, described body top has the valve block and the valve pad that are sheathed on piston rod, in described body, there is the passage one that runs through body, described valve block sidepiece is resisted against one end of described passage one, it is characterized in that: described valve block has elasticity and is pressed between described valve pad and body, between the sidepiece of described valve pad and end face, there is rake one.
Valve pad is ring, valve block and valve pad composition one-way flow valve, and valve block, by one end sealing of passage one, can upwards be opened valve block from the lower end of passage one.The sidepiece of valve pad has rake one, when automobile bumpiness is violent, fluid is opened valve block and valve block is resisted against on rake one, this kind of structure is simple in structure, thereby can pass through the passage velocity of liquid assets of flow control fluid for the moment by control piston inner fluid, between valve pad and body, only there is the valve block being pressed by both simultaneously, there is no step, can not cause valve block distortion seriously and dislocation.
In the piston assembly of above-mentioned a kind of automobile absorber, one end of described passage one is axially relative with described rake one.
One end of passage one is corresponding at axial position with rake one, make valve block corresponding at axial position with valve pad simultaneously, when valve block is opened, the free end distortion of valve block is just resisted against on rake one, because valve block is axially relative with valve pad, under the restriction of rake one, can not make the free end of valve block produce unnecessary distortion.Simplicity of design, practicality.
In the piston assembly of above-mentioned a kind of automobile absorber, described passage one parallel to an axis is in described piston rod.
Fluid circulates toward upper end from the lower end of passage one, and passage one parallel to an axis piston rod makes the fluid can circulate.
In the piston assembly of above-mentioned a kind of automobile absorber, described piston outside cover has piston ring.
Piston ring has sealing, control oil, and the effect of heat conduction, prevents that piston from directly contacting with cylinder wall.
In the piston assembly of above-mentioned a kind of automobile absorber, in described body, there is the passage two of inclination, described body upper end is run through in described passage two one end, and the other end of described passage two is against there being unidirectional.
In passage two, the circulating direction of fluid is contrary with passage one, and fluid can only be by unidirectional unidirectional passing through, and passage two passage for tilting, plays leading role to fluid, makes that fluid is smooth and easy to be passed through.
In the piston assembly of above-mentioned a kind of automobile absorber, described unidirectional is sheathed on described piston rod.
In the piston assembly of above-mentioned a kind of automobile absorber, in described body, also there is passage three, described passage two the other ends are connected with passage three one end, and described passage three the other ends run through described body lower end.
Passage two and passage three run through piston only, and fluid is by passage two inlet passages three.
In the piston assembly of above-mentioned a kind of automobile absorber, described unidirectional between passage two and passage three.
Fluid is by opening unidirectional in passage two inlet passages three, and unidirectional makes the fluid can only be from passage two inlet passages three.
In the piston assembly of above-mentioned a kind of automobile absorber, described unidirectional downside has packing ring, and described unidirectional is pressed between described body and described packing ring.
Unidirectional is pressed between packing ring and piston only by packing ring, there is no step, can not cause unidirectional dislocation.
In the piston assembly of above-mentioned a kind of automobile absorber, between described packing ring sidepiece and end face, there is rake two.
The existence of rake two makes unidirectional can open downwards, thereby makes in fluid inlet passage three.This kind of structure do not have unnecessary part, only needs can realize through the packing ring of processing, and cost is low.
Compared with prior art, the piston assembly of this automobile absorber has the following advantages:
1, in the piston assembly of this automobile absorber, flowing valve only includes valve pad and valve block, and part is few, and cost is low, valve block there is elasticity and be pressed on valve pad and body between, between the sidepiece of valve pad and end face, there is rake one, open space be provided for valve block, simple in structure, reasonable in design.
2, in the piston assembly of this automobile absorber, there is the passage two of inclination, thereby can make to the fluid guiding of the passage two of flowing through that fluid is smooth and easy to be passed through.
3, in the piston assembly of this automobile absorber, the valve pad of flowing valve and valve block are directly installed on piston rod, install simple.
Accompanying drawing explanation
Fig. 1 is the structural representation of the piston assembly of this automobile absorber.
In figure, 1, piston rod; 2, body; 2a, passage one; 2b, passage two; 2c, passage three; 3, valve block; 4, valve pad; 4a, rake one; 5, piston ring; 6, unidirectional; 7, packing ring; 7a, rake two.
Embodiment
As shown in Figure 1, the piston assembly of this automobile absorber, piston assembly comprises piston rod 1 and piston, piston sleeve is located at the bottom of piston rod 1, and piston outside cover has piston ring 5, and piston ring 5 has sealing, control oil, the effect of heat conduction, prevents that piston from directly contacting with cylinder wall.Piston comprises ringwise body 2, body 2 tops have the valve block 3 and the valve pad 4 that are set on piston rod 1, valve block 3 has elasticity, valve pad 4 is ring, valve block 3 is pressed between valve pad 4 and body 2, between the sidepiece of valve pad 4 and end face, have rake one 4a, valve block 3 and valve pad 4 form one-way flow valve.Body 2 one sides have passage one 2a that runs through body 2, passage one 2a parallel to an axis, in piston rod 1, can circulate fluid smooth and easy, and valve block 3 sidepieces are resisted against one end of passage one 2a, valve block 3, by one end sealing of passage one 2a, can upwards be opened valve block 3 from the lower end of passage one 2a.One end of passage one 2a is corresponding at axial position with rake one 4a, make valve block 3 corresponding at axial position with valve pad 4 simultaneously, when valve block 3 is opened, the free end distortion of valve block 3 is just resisted against on rake one 4a, under the restriction of rake one 4a, can not make the free end of valve block 3 produce unnecessary distortion.Simplicity of design, practicality.
When automobile bumpiness is violent, fluid enters from the lower end of passage one 2a and valve block 3 is opened and valve block 3 is resisted against on rake one 4a, this kind of structure is simple in structure, there is no complicated part, saved cost, thus this structure can control piston inner fluid flow during by passage one 2a control the velocity of liquid assets of fluid, between valve pad 4 and body 2, only there is the valve block 3 being pressed by both simultaneously, there is no step, can not cause valve block 3 distortion seriously and dislocation.
Body 2 opposite sides also have passage two 2b of inclination, body 2 upper ends are run through in passage two 2b one end, the other end of passage two 2b is against there being unidirectional 6, be set in for unidirectional 6 on piston rod 1, in body 2, also there are passage three 2c, passage two 2b are connected with passage three 2c one end against the one end that has unidirectional 6, and the passage three 2c the other ends run through body 2 lower ends, and unidirectional 6 between passage two 2b and passage three 2c.In passage two 2b, the circulating direction of fluid is contrary with passage one 2a, fluid can only by unidirectional 6 unidirectional by inlet passage three 2c, passage two 2b are the passage tilting, and fluid is played to leading role, make that fluid is smooth and easy to be passed through.Unidirectional 6 downsides have packing ring 7, by packing ring 7, unidirectional 6 are pressed between body 2 and packing ring 7, there is no step, can not cause unidirectional 6 dislocation.Between packing ring 7 sidepieces and end face, there are ringwise rake two 7a, existing for unidirectional 6 and opening of rake two 7a provides space, thereby makes in fluid inlet passage three 2c, and this kind of structure do not have unnecessary part, only need can realize through the packing ring 7 of processing, cost is low.
In this piston assembly, piston is riveted on piston rod 1 by rushing riveter skill, and its working procedure is as follows, while moving upward by Fig. 1 direction as shown piston, fluid, by passage two 2b that tilt, makes fluid flow into the chamber of piston below thereby open unidirectional 6 flow channel three 2c.When piston moves downward, in fluid inlet passage one 2a, upwards open valve block 3, thereby flow in the chamber of top.In said process, by fluid back and forth reciprocal motion the vibrational energy of automobile is converted to the heat energy of fluid motion.
Specific embodiment described herein is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various modifications or supplements or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Although more used the terms such as piston rod 1, body 2, passage one 2a, passage two 2b, passage three 2c, valve block 3, valve pad 4, rake one 4a, piston ring 5, unidirectional 6, packing ring 7, rake two 7a herein, do not got rid of the possibility that uses other term.Use these terms to be only used to describe more easily and explain essence of the present utility model; They are construed to any additional restriction is all contrary with the utility model spirit.
Claims (10)
1. the piston assembly of an automobile absorber, described piston assembly comprises piston rod (1) and piston, described piston sleeve is located at the bottom of piston rod (1), described piston comprises ringwise body (2), described body (2) top has the valve block (3) and the valve pad (4) that are sheathed on piston rod (1), in described body (2), there is the passage one (2a) that runs through body (2), described valve block (3) sidepiece is resisted against one end of described passage one (2a), it is characterized in that: described valve block (3) there is elasticity and be pressed on described valve pad (4) and body (2) between, between the sidepiece of described valve pad (4) and end face, there is rake one (4a).
2. the piston assembly of a kind of automobile absorber according to claim 1, is characterized in that, one end of described passage one (2a) is axially relative with described rake one (4a).
3. the piston assembly of a kind of automobile absorber according to claim 1 and 2, is characterized in that, described passage one (2a) parallel to an axis is in described piston rod (1).
4. the piston assembly of a kind of automobile absorber according to claim 1 and 2, is characterized in that, described piston outside cover has piston ring (5).
5. the piston assembly of a kind of automobile absorber according to claim 1 and 2, it is characterized in that, in described body (2), there is the passage two (2b) of inclination, described body (2) upper end is run through in described passage two (2b) one end, and the other end of described passage two (2b) is against there being unidirectional (6).
6. the piston assembly of a kind of automobile absorber according to claim 5, is characterized in that, described unidirectional (6) are sheathed on described piston rod (1).
7. the piston assembly of a kind of automobile absorber according to claim 5, it is characterized in that, in described body (2), also there is passage three (2c), described passage two (2b) the other end is connected with passage three (2c) one end, and described passage three (2c) the other end runs through described body (2) lower end.
8. the piston assembly of a kind of automobile absorber according to claim 6, is characterized in that, described unidirectional (6) are positioned between passage two (2b) and passage three (2c).
9. the piston assembly of a kind of automobile absorber according to claim 8, is characterized in that, described unidirectional (6) downside has packing ring (7), and described unidirectional (6) are pressed between described body (2) and described packing ring (7).
10. the piston assembly of a kind of automobile absorber according to claim 9, is characterized in that, has rake two (7a) between described packing ring (7) sidepiece and end face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420096929.4U CN203702971U (en) | 2014-03-05 | 2014-03-05 | Piston assembly for automotive shock absorber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420096929.4U CN203702971U (en) | 2014-03-05 | 2014-03-05 | Piston assembly for automotive shock absorber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203702971U true CN203702971U (en) | 2014-07-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420096929.4U Expired - Lifetime CN203702971U (en) | 2014-03-05 | 2014-03-05 | Piston assembly for automotive shock absorber |
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| Country | Link |
|---|---|
| CN (1) | CN203702971U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109488717A (en) * | 2018-12-07 | 2019-03-19 | 宁波金城减震器有限公司 | A kind of automobile absorber |
-
2014
- 2014-03-05 CN CN201420096929.4U patent/CN203702971U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109488717A (en) * | 2018-12-07 | 2019-03-19 | 宁波金城减震器有限公司 | A kind of automobile absorber |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140709 |