CN219472631U - Cap member for automobile damper and automobile damper - Google Patents
Cap member for automobile damper and automobile damper Download PDFInfo
- Publication number
- CN219472631U CN219472631U CN202320178711.2U CN202320178711U CN219472631U CN 219472631 U CN219472631 U CN 219472631U CN 202320178711 U CN202320178711 U CN 202320178711U CN 219472631 U CN219472631 U CN 219472631U
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- shock absorber
- cap member
- automobile shock
- wall portion
- automobile
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Abstract
A cap member for an automobile shock absorber, which is connected to one end of a base shell of an automobile shock absorber, wherein the cap member (1) for an automobile shock absorber is formed in a bottomed tubular shape, and comprises a peripheral wall portion (10) and a bottom wall portion (13), and a plurality of through holes (100) penetrating in the wall thickness direction are formed at least one of the peripheral wall portion (10) and the bottom wall portion (13) with a spacing therebetween.
Description
Technical Field
The present utility model relates to a cap member for an automobile shock absorber and an automobile shock absorber.
Background
Currently, conventional vehicles use various suspensions to improve the operability or riding comfort. In particular, a suspension (shock absorber) incorporating a spring is used between the wheel and the vehicle body in order to absorb vibration or impact force.
In general, a shock absorber includes a cylinder filled with a working fluid, a cap member covering one end of the cylinder, a piston fitted into the cylinder via the cap member, a piston rod fitted over the piston, a dust cover fitted over the outside of the cap member, and the like. The interior of the cylinder of the shock absorber is divided into an upper chamber and a lower chamber by a piston having a flow valve and a extension valve. A reserve tube is formed at the lower end of the cylinder body, and is connected with the lower chamber via a partition plate having a compression valve and a compensation valve.
The shock absorber achieves a shock absorbing effect in the following manner.
When the piston rod of the shock absorber is compressed, the piston descends, the volume of the upper cavity is increased, the volume of the lower cavity is reduced, the circulation valve is opened, and oil in the lower cavity enters the upper cavity through the circulation valve; and simultaneously, a part of oil liquid of the compression valve is opened to enter the oil storage cylinder. The throttling action of the two valves on the oil liquid causes the shock absorber to generate damping action when in compression motion.
In addition, when the piston rod of the shock absorber is stretched, the piston moves upwards, the volume of the upper cavity is reduced, the volume of the lower cavity is increased, the stretching valve is opened, and oil in the upper cavity enters the lower cavity through the stretching valve; and simultaneously, the compensation valve is opened, and a part of oil enters the lower cavity from the oil storage cylinder. The throttling action of the two valves on the oil liquid causes the shock absorber to generate damping action during the stretching movement.
In the shock absorber, friction is generated between the piston and the fluid in the cylinder body due to frequent repetitive movement, and therefore, the temperature of the shock absorber becomes high. When the damper is at a high temperature for a long time, the damper is deteriorated and the service life is shortened, so how to dissipate heat of the damper is a problem to be solved. In addition, in the past, weight reduction has been increasingly demanded for shock absorbers, and therefore, how to reduce the weight of shock absorbers has also become a problem to be solved.
Disclosure of Invention
The present utility model has been made in view of the above-described problems, and an object thereof is to provide a cap member for an automobile shock absorber that has excellent heat radiation properties and can reduce the weight of the shock absorber, and an automobile shock absorber having the cap member for an automobile shock absorber.
In order to achieve the above object, the present utility model provides a cap member for an automobile shock absorber, which is connected to one end of a base shell of an automobile shock absorber, and which is formed in a bottomed tubular shape, and which includes a peripheral wall portion and a bottom wall portion, and in which a plurality of through holes penetrating in a wall thickness direction are formed at least one of the peripheral wall portion and the bottom wall portion at intervals.
According to the cap member for an automobile shock absorber of the present utility model, which is formed in a bottomed tubular shape, including the peripheral wall portion and the bottom wall portion, a plurality of through holes penetrating in the wall thickness direction are formed at least one of the peripheral wall portion and the bottom wall portion at intervals, whereby heat generated in the automobile shock absorber due to frequent repeated movement of the piston can be dissipated through the through holes formed in the cap member for an automobile shock absorber, deterioration of the shock absorber is prevented, and the service life is prolonged. In addition, the through hole is formed in the cap member for the automobile damper, so that the weight of the cap member for the automobile damper can be reduced, the weight of the automobile damper can be further reduced, and the requirement for weight reduction of the damper can be met.
In the cap member for an automobile shock absorber according to the present utility model, the plurality of through holes are formed in the peripheral wall portion at equal intervals in the circumferential direction.
In the cap member for an automobile shock absorber according to the present utility model, the insertion hole through which the piston rod of the automobile shock absorber is inserted is formed in the center of the bottom wall portion, and the plurality of through holes are formed at the same angle in the circumferential direction around the insertion hole at different positions from the insertion hole in the bottom wall portion.
In the cap member for an automobile shock absorber of the present utility model, the through hole is formed in a circular shape, and the diameter of the through hole is 5 mm to 10 mm.
In the cap member for an automobile shock absorber according to the present utility model, the plurality of locking projections for engaging with the dust cover of the automobile shock absorber are formed in the peripheral wall portion.
In the cap member for an automobile shock absorber according to the present utility model, a flange for stopping and engaging with the dust cover of the automobile shock absorber is formed at the opening end of the cap member for an automobile shock absorber.
In the cap member for an automobile shock absorber according to the present utility model, the recess is formed on the side of the flange that blocks the dust cover of the automobile shock absorber at a distance along the circumferential direction of the flange.
In the cap member for an automobile shock absorber according to the present utility model, the plurality of grooves and the plurality of ridges are formed in the outer surface of the bottom wall portion along the radial direction of the bottom wall portion, and the grooves and the ridges are alternately arranged.
The utility model also provides an automobile shock absorber, which comprises a base shell, the cap component for the automobile shock absorber and a piston embedded in the base shell.
As described above, according to the cap member for an automobile shock absorber and the automobile shock absorber of the present utility model, which are formed in a bottomed tubular shape, including the peripheral wall portion and the bottom wall portion, a plurality of through holes penetrating in the wall thickness direction are formed at least one of the peripheral wall portion and the bottom wall portion at intervals, whereby heat generated in the automobile shock absorber due to frequent repeated movement of the piston can be dissipated through the through holes formed in the cap member for an automobile shock absorber, deterioration of the shock absorber is prevented, and the service life is prolonged. In addition, the through hole is formed in the cap member for the automobile damper, so that the weight of the cap member for the automobile damper can be reduced, the weight of the automobile damper can be further reduced, and the requirement for weight reduction of the damper can be met.
Drawings
Fig. 1 is a schematic view of an automobile shock absorber of the present utility model.
Fig. 2 is a perspective view of the cap member of the automotive shock absorber of the utility model.
Fig. 3 is another perspective view of the automotive shock absorber cap member of the present utility model.
Detailed Description
Hereinafter, embodiments of the present utility model will be described with reference to the drawings. However, the cap member for an automobile shock absorber and the automobile shock absorber disclosed in the following embodiments are merely examples, and are not limited to the following embodiments as long as the effects of the present utility model can be achieved.
Fig. 1 is a schematic view of an automobile shock absorber of the present utility model. Fig. 2 is a perspective view of the cap member of the automotive shock absorber of the utility model. Fig. 3 is another perspective view of the automotive shock absorber cap member of the present utility model.
The automobile damper of the present embodiment includes a cap member 1, a base housing 2 of the automobile damper having one end covered with the cap member 1, and a piston fitted into the base housing 2, a piston rod 30 of the piston extending from the cap member 1, and a dust cover 3 covering the piston rod 30 and the outside of the cap member 1. The inside of the base shell 2 of the shock absorber is divided into an upper chamber and a lower chamber by a piston having a flow valve and a extension valve. A reserve tube is formed at a lower end of the cylinder body, and the reserve tube is connected to a lower chamber (both not shown) via a diaphragm having a compression valve and a compensation valve.
In the present embodiment, the cap member 1 is formed in a bottomed tubular shape, and includes a peripheral wall portion 10 and a bottom wall portion 13, and a plurality of through holes 100 penetrating in the wall thickness direction are formed at intervals in at least one of the peripheral wall portion 10 and the bottom wall portion 13. A penetration hole 130 through which a piston rod of the automobile damper is penetrated is formed in the center of the bottom wall portion 13.
Specifically, a plurality of through holes 100 are formed in the peripheral wall portion 10 at equal intervals in the circumferential direction. In addition, a plurality of through holes 100 (not shown) may be formed in the bottom wall portion 13 at different positions from the insertion holes 130 at the same angle in the circumferential direction around the insertion holes 130. Further, the through-hole 100 may be formed in both the peripheral wall portion 10 and the bottom wall portion 13.
In the shock absorber, friction is generated between the piston and the fluid in the cylinder body due to frequent repetitive movement, and therefore, the temperature of the shock absorber becomes high. When the shock absorber is at a high temperature for a long time, the shock absorber is deteriorated and the service life is shortened. In addition, currently, weight reduction is increasingly demanded for shock absorbers.
According to the cap member for an automobile shock absorber of the present utility model, which is formed in a bottomed tubular shape, including the peripheral wall portion and the bottom wall portion, a plurality of through holes penetrating in the wall thickness direction are formed at least one of the peripheral wall portion and the bottom wall portion at intervals, whereby heat generated in the automobile shock absorber due to frequent repeated movement of the piston can be dissipated through the through holes formed in the cap member for an automobile shock absorber, deterioration of the shock absorber is prevented, and the service life is prolonged. In addition, the through hole is formed in the cap member for the automobile damper, so that the weight of the cap member for the automobile damper can be reduced, the weight of the automobile damper can be further reduced, and the requirement for weight reduction of the damper can be met.
The through hole 100 is formed as a circular through hole or a square through hole, but is not limited thereto, and may be formed in any other shape as long as heat dissipation and weight reduction of the automobile damper are possible.
The size of the through hole 100 is not limited, and may be any size as long as the strength of the cap member for an automobile shock absorber is satisfied. For example, in the case where the through hole is circular, the diameter thereof is formed to be 10 mm or less. The diameter is preferably 5 mm to 10 mm. When the diameter of the through hole exceeds 10 mm, there is a possibility that the strength of the cap member for the automobile damper is affected, and when the diameter of the through hole is less than 5 mm, the heat dissipation property is affected due to the too small through hole. In addition, when the through hole 100 is formed in a square shape or other irregular shape, it is sufficient if the area thereof is between 20 square millimeters and 80 square millimeters.
The number of through holes 100 is not limited, and for example, 4 through holes 100 are formed at an angle of 90 degrees in the circumferential direction around the insertion hole 130 at a position different from the insertion hole 130 in the bottom wall portion 13, and 8 through holes 100 are formed at equal intervals in the circumferential direction in the peripheral wall portion 10. Of course, a number of through holes greater than 4 or less than 4 may be formed in the bottom wall portion 13, and for example, 3, 5, 6, 7, 8, or other numbers may be used. In addition, the number of through holes larger than 8 or smaller than 8 may be formed in the peripheral wall portion 10, and for example, 3 to 7 or 9, 10 or other numbers may be formed.
In addition, the through holes 100 formed in the peripheral wall portion 10 are not limited to being arranged in the circumferential direction, but may be arranged in the axial direction of the cap member, and may be arranged in both the circumferential direction and the axial direction of the cap member, as long as heat dissipation and weight reduction of the automobile shock absorber are enabled.
The cap member for an automobile shock absorber may be formed of metal or resin, and may be formed of, for example, PA66+gf30 or PA6 +gf15.
In the cap member for an automobile shock absorber of the present embodiment, a plurality of locking projections 102 for engaging with the dust cover of the automobile shock absorber are formed in the peripheral wall portion 10. The number of the locking projections 102 is not limited in this application, and may be 2, 3, 4, 5 or more, preferably 3.
In the cap member for an automobile shock absorber of the present embodiment, a flange 104 for stopping and engaging with the dust cover of the automobile shock absorber is formed at the opening end of the cap member 1 for an automobile shock absorber.
By providing the detent projections 102 and the flange 104, connection with dust covers of different types of automotive shock absorbers is facilitated.
In the cap member for an automobile shock absorber of the present embodiment, the recess 106 is formed on the side of the flange 104 that blocks the dust cover of the automobile shock absorber at intervals along the circumferential direction of the flange 104. In addition, the number of the concave portions 106 is not limited in this application, and may be 2, 3, 4, 5 or more, preferably 3. By providing the recess 106, it is possible to exhaust air and prevent abnormal noise from occurring when the dust cover moves relative to the base shell 2 of the damper.
In the cap member for an automobile shock absorber of the present embodiment, a plurality of grooves 131 and a plurality of ribs 132 are formed on the outer surface of the bottom wall portion 13 along the radial direction of the bottom wall portion 13, and the grooves 131 and the ribs 132 are alternately arranged.
By providing the protruding strips 132, the contact area between the cushion block 4 provided on the piston rod 30 and the cap member 1 can be reduced, and abnormal noise caused by contact can be reduced. Further, the air can be exhausted by providing the recess 131.
As described above, according to the cap member for an automobile shock absorber and the automobile shock absorber of the present utility model, which are formed in a bottomed tubular shape, including the peripheral wall portion and the bottom wall portion, a plurality of through holes penetrating in the wall thickness direction are formed at least one of the peripheral wall portion and the bottom wall portion at intervals, whereby heat generated in the automobile shock absorber due to frequent repeated movement of the piston can be dissipated through the through holes formed in the cap member for an automobile shock absorber, deterioration of the shock absorber is prevented, and the service life is prolonged. In addition, the through hole is formed in the cap member for the automobile damper, so that the weight of the cap member for the automobile damper can be reduced, the weight of the automobile damper can be further reduced, and the requirement for weight reduction of the damper can be met.
Finally, it should be noted that: the above embodiments are merely specific embodiments of the present utility model, and are not intended to limit the scope of the present utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: modifications and variations of the embodiments described herein will be apparent to those skilled in the art, and equivalents may be substituted for elements thereof without departing from the scope of the utility model. Such modifications, changes or substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model, and are intended to be included in the scope of the present utility model.
Claims (9)
1. A cap member for an automobile shock absorber, which is connected to one end of a base shell of an automobile shock absorber, characterized in that the cap member (1) for an automobile shock absorber is formed in a bottomed tubular shape, and comprises a peripheral wall portion (10) and a bottom wall portion (13), and a plurality of through holes (100) penetrating in the wall thickness direction are formed at least one of the peripheral wall portion (10) and the bottom wall portion (13) with a spacing therebetween.
2. The cap member for an automobile shock absorber according to claim 1, wherein a plurality of the through holes (100) are formed in the peripheral wall portion (10) at regular intervals in the circumferential direction.
3. The cap member for an automobile shock absorber according to claim 2, wherein,
an insertion hole (130) for inserting a piston rod of the automobile damper is formed in the center of the bottom wall portion (13),
a plurality of through holes (100) are formed in the bottom wall (13) at the same angle in the circumferential direction around the insertion hole (130) at different positions from the insertion hole (130).
4. A cap member for an automobile shock absorber according to claim 3, wherein the through hole (100) is formed in a circular shape, and the through hole (100) is formed to have a diameter of 5 mm or more and 10 mm or less.
5. The cap member for an automobile shock absorber according to any one of claims 1 to 4, wherein a plurality of locking projections (102) for engagement with a dust cover of an automobile shock absorber are formed in the peripheral wall portion (10).
6. The cap member for an automobile shock absorber according to any one of claims 1 to 4, wherein a flange (104) for stopping and engaging with a dust cover of an automobile shock absorber is formed at an opening end of the cap member (1) for an automobile shock absorber.
7. The cap member for an automobile shock absorber according to claim 6, wherein recesses (106) are formed at intervals along a circumferential direction of the flange (104) on a side of the flange (104) where a dust cover of the automobile shock absorber is stopped.
8. The cap member for an automobile shock absorber according to claim 7, wherein a plurality of grooves (131) and a plurality of ridges (132) are formed on an outer surface of the bottom wall portion (13) along a radial direction of the bottom wall portion (13), the grooves (131) and the ridges (132) being alternately arranged.
9. An automobile shock absorber comprising a base shell, the cap member for an automobile shock absorber according to any one of claims 1 to 8, and a piston embedded in the base shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320178711.2U CN219472631U (en) | 2023-02-07 | 2023-02-07 | Cap member for automobile damper and automobile damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320178711.2U CN219472631U (en) | 2023-02-07 | 2023-02-07 | Cap member for automobile damper and automobile damper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219472631U true CN219472631U (en) | 2023-08-04 |
Family
ID=87434627
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320178711.2U Active CN219472631U (en) | 2023-02-07 | 2023-02-07 | Cap member for automobile damper and automobile damper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219472631U (en) |
-
2023
- 2023-02-07 CN CN202320178711.2U patent/CN219472631U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |