CN213235899U - Exhaust noise reduction structure of shock absorber - Google Patents
Exhaust noise reduction structure of shock absorber Download PDFInfo
- Publication number
- CN213235899U CN213235899U CN202021787413.6U CN202021787413U CN213235899U CN 213235899 U CN213235899 U CN 213235899U CN 202021787413 U CN202021787413 U CN 202021787413U CN 213235899 U CN213235899 U CN 213235899U
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- China
- Prior art keywords
- exhaust
- dust cover
- shock absorber
- shield
- piston rod
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Abstract
The utility model discloses a structure of making an uproar falls in bumper shock absorber exhaust, including dust cover, shield and piston rod setting are in the dust cover, and the one end and the shield of dust cover are connected, and the shield is connected with the piston rod, are equipped with the exhaust hole on the lateral wall of shield, the inside and outside of exhaust hole intercommunication shield. The utility model provides a structure of making an uproar falls in bumper shock absorber exhaust can effectively reduce the exhaust noise of dust cover.
Description
Technical Field
The utility model belongs to the technical field of the automobile shock absorber ware and specifically relates to a structure of making an uproar falls in bumper shock absorber exhaust is related to.
Background
In order to quickly attenuate the vibration of the frame and the body and improve the smoothness and comfort of the running of the automobile, a shock absorber is generally arranged on an automobile suspension system. A piston rod on the shock absorber can stretch and retract when an automobile runs, if dust or other stains can be stained on the piston rod, the service life of the piston rod can be influenced, and a dust hood is generally sleeved outside the piston rod in order to keep the surface of the piston rod clean. Dust cover confined gas can only be exhausted from the gap of dust cover terminal surface among the prior art at piston rod reciprocating motion in-process, and when the piston rod fast motion in-process, the displacement of fumes and gas is great, produces great exhaust noise when gas passes through the exhaust hole, influences the driver and drives experience. Therefore, it is desirable to design an exhaust noise reduction structure of a shock absorber, which can effectively reduce the exhaust noise of the dust cover.
Chinese patent application publication No. CN203488623U, published as 2014 03 and 19, entitled "Integrated dust cover of automobile shock absorber", discloses an integrated dust cover of an automobile shock absorber, which comprises a dust cover and a buffer spring; the dustproof cover and the buffer spring are vulcanized into an integral structure; one end of a buffer spring in the dust cover is integrally provided with a buffer spring lower cushion, the lower surface of the buffer spring lower cushion is connected with an upper end oil seal of the shock absorber, and the upper surface of the buffer spring lower cushion is connected with the buffer spring; and closing-up structures are arranged at two ends of the dust cover. The dust cover of this patent is not suitable for use in the automotive shock absorber of the present application.
Disclosure of Invention
The utility model discloses an overcome among the prior art dust cover confined gas in piston rod reciprocating motion process gas can only be followed the gap of shield terminal surface and exhausted, and in the piston rod rapid movement process, the displacement is great, and gas produces great exhaust noise when passing through the exhaust hole, influences the problem that driver's driving experienced, provides a structure of making an uproar falls in bumper shock absorber exhaust, can effectively reduce the exhaust noise of dust cover.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a structure of making an uproar falls in bumper shock absorber exhaust, includes dust cover, shield and piston rod, and shield and piston rod setting are in the dust cover, and the one end and the shield of dust cover are connected, and the shield is connected with the piston rod, are equipped with the exhaust hole on the lateral wall of shield, the inside and outside of exhaust hole intercommunication shield.
Among the above-mentioned technical scheme, through set up the exhaust hole on the lateral wall at the shield, can be when the piston rod rapid movement, discharge the gas in the dust cover rapidly, the exhaust noise that produces when having avoided a large amount of exhaust gases in the slot. This structural style is simple easily to be realized, and is little to the shield performance influence, can effectively get rid of dust cover exhaust noise to reduce cost.
Preferably, the side wall of the dustproof cover is provided with a positioning block, one end of the dustproof cover, which is far away from the piston rod, is provided with a positioning ring, and one end of the dustproof cover is fixed between the positioning block and the positioning ring. The structure can play the fixed effect of location to the one end of dust cover, and the one end of dust cover is equipped with the elastic ring, overlaps and establishes between locating piece and holding ring.
Preferably, one end of the positioning block, which is close to the piston rod, is provided with a guide inclined plane. The structure is convenient for one end of the dust cover to be sleeved in.
Preferably, the positioning ring, the positioning block and the dust cover are of an integrally formed structure. The structure is convenient for the shield processing, guarantees structural strength simultaneously.
Preferably, the number of the exhaust holes is multiple, and the exhaust holes are uniformly distributed along the circumferential direction of the dust cover.
Preferably, the number of the positioning blocks is multiple, and the positioning blocks and the exhaust holes are arranged in a staggered mode. The structure can prevent the vent holes from being blocked by the positioning blocks, and can enhance the strength of the part which is not dug.
Preferably, the exhaust hole penetrates through one end of the dust cover far away from the piston rod. The structure can increase the exhaust effect and is convenient to process.
The utility model has the advantages that: (1) the structure is simple and easy to process, the manufacturing cost is low, and the influence on the performance of the dustproof cover is small; (2) the exhaust noise of the dust cover can be effectively eliminated; (3) the connection between the dust cover and the dust cover is reliable and simple.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a schematic structural diagram of the middle dust cover of the present invention.
In the figure: dust cover 1, shield 2, exhaust hole 2.1, locating piece 2.2, direction inclined plane 2.2.1, holding ring 2.3, piston rod 3.
Detailed Description
The invention is further described with reference to the accompanying drawings and specific embodiments.
Example 1:
as shown in fig. 1 and 2, an exhaust and noise reduction structure of a shock absorber comprises a dust cover 1, a dust cover 2 and a piston rod 3, wherein the dust cover 2 and the piston rod 3 are arranged in the dust cover 1, one end of the dust cover 1 is connected with the dust cover 2, the dust cover 2 is connected with the piston rod 3, 3 exhaust holes 2.1 are arranged on the side wall of the dust cover 2, the 3 exhaust holes 2.1 are uniformly distributed along the circumferential direction of the dust cover 2, and the exhaust holes 2.1 are communicated with the inner side and the outer side of the dust cover 2; the exhaust hole 2.1 penetrates through one end of the dust cover 2 far away from the piston rod 3. 3 positioning blocks 2.2 are arranged on the side wall of the dust cover 2, the positioning blocks 2.2 and the exhaust holes 2.1 are arranged in a staggered mode, one end, far away from the piston rod 3, of the dust cover 2 is provided with a positioning ring 2.3, and one end of the dust cover 1 is fixed between the positioning blocks 2.2 and the positioning ring 2.3; one end of the positioning block 2.2 close to the piston rod 3 is provided with a guide inclined plane 2.2.1; the positioning ring 2.3, the positioning block 2.2 and the dust cover 2 are of an integrally formed structure.
Among the above-mentioned technical scheme, through set up exhaust hole 2.1 on the lateral wall at shield 2, can be when 3 rapid movements of piston rod, discharge the gas in the dust cover 1 rapidly, the exhaust noise that produces when having avoided a large amount of exhaust gases in the slot. The positioning block 2.2 and the positioning ring 2.3 can fix one end of the dust cover 1, an elastic ring is arranged at one end of the dust cover 1 and sleeved between the positioning block 2.2 and the positioning ring 2.3, and the guide inclined plane 2.2.1 facilitates the sleeving of one end of the dust cover 1.
The utility model has the advantages that: the structure is simple and easy to process, the manufacturing cost is low, and the influence on the performance of the dustproof cover is small; the exhaust noise of the dust cover can be effectively eliminated; the connection between the dust cover and the dust cover is reliable and simple.
Claims (7)
1. The utility model provides a structure of making an uproar falls in bumper shock absorber exhaust, characterized by, includes dust cover, shield and piston rod, and shield and piston rod setting are in the dust cover, and the one end and the shield of dust cover are connected, and the shield is connected with the piston rod, are equipped with the exhaust hole on the lateral wall of shield, the inside and outside of exhaust hole intercommunication shield.
2. The exhaust and noise reduction structure of a shock absorber as claimed in claim 1, wherein the side wall of the dust cap is provided with a positioning block, the end of the dust cap away from the piston rod is provided with a positioning ring, and the end of the dust cap is fixed between the positioning block and the positioning ring.
3. The exhaust and noise reduction structure of a shock absorber according to claim 2, wherein the end of the positioning block close to the piston rod is provided with a guide inclined surface.
4. The exhaust and noise reduction structure of a shock absorber as claimed in claim 2, wherein the positioning ring, the positioning block and the dust cap are integrally formed.
5. The exhaust and noise reduction structure of the shock absorber as claimed in claim 2, 3 or 4, wherein the number of the exhaust holes is plural, and the plural exhaust holes are uniformly distributed along the circumferential direction of the dust cap.
6. The exhaust and noise reduction structure of the shock absorber as claimed in claim 5, wherein the number of the positioning blocks is plural, and the positioning blocks and the exhaust holes are arranged in a staggered manner.
7. The exhaust and noise reduction structure of a shock absorber as claimed in claim 1, 2, 3 or 4, wherein said exhaust hole penetrates through an end of said dust cap remote from said piston rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021787413.6U CN213235899U (en) | 2020-08-24 | 2020-08-24 | Exhaust noise reduction structure of shock absorber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021787413.6U CN213235899U (en) | 2020-08-24 | 2020-08-24 | Exhaust noise reduction structure of shock absorber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213235899U true CN213235899U (en) | 2021-05-18 |
Family
ID=75901568
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021787413.6U Expired - Fee Related CN213235899U (en) | 2020-08-24 | 2020-08-24 | Exhaust noise reduction structure of shock absorber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213235899U (en) |
-
2020
- 2020-08-24 CN CN202021787413.6U patent/CN213235899U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210518 |