CN216447358U

CN216447358U - Noise reduction type automobile shock absorber

Info

Publication number: CN216447358U
Application number: CN202123371748.7U
Authority: CN
Inventors: 范志文; 武杰; 荀杰
Original assignee: Changzhou Deweisheng Auto Parts Co ltd
Current assignee: Changzhou Deweisheng Auto Parts Co ltd
Priority date: 2021-12-30
Filing date: 2021-12-30
Publication date: 2022-05-06
Anticipated expiration: 2031-12-30

Abstract

The utility model provides a noise reduction type automobile shock absorber which comprises a shock absorber body, wherein the shock absorber body comprises a shock absorption cylinder, a dust cover and a piston rod, the dust cover is installed at the upper end of the shock absorption cylinder in a threaded manner, the piston rod penetrates through the dust cover and is movably installed in the shock absorption cylinder, the upper end of the dust cover is provided with a noise reduction cylinder, the inner wall of the noise reduction cylinder is attached with a sealing ring, the lower part of the noise reduction cylinder radially penetrates through two exhaust holes, the upper part of the piston rod is provided with an exhaust column through external threads, the lower edge of the outer side of the exhaust column is fixedly provided with a sealing ring, and the sealing ring is in sealing fit with the inner wall of the sealing ring; according to the utility model, the noise reduction cylinder is additionally arranged on the dustproof cover, and sealing buffering is realized through the sealing ring, the exhaust column and the sealing ring, so that air is directly exhausted from the exhaust hole and sucked, soft contact and soft extraction of the piston rod during up-and-down expansion are realized, the effect of buffering the pressure of the piston rod can be achieved while noise is reduced, and the service life of the shock absorber body is prolonged.

Description

Noise reduction type automobile shock absorber

Technical Field

The utility model belongs to the technical field of automobile shock absorbers, and particularly relates to a noise reduction type automobile shock absorber.

Background

The term "shock absorber" is a general term used in the automotive chassis industry, and an automotive shock absorber is actually a vibration damper, and the shock absorber is not only used in a suspension in an automobile, but also used in other positions, such as a cab, a saddle, a steering wheel and the like, and can be used as a buffer on a vehicle bumper; automobile shock absorber ware usually can overlap the dust cover in the bumper shock absorber outside, mainly plays dustproof, waterproof effect, though the dust that can simply prevent the bumper shock absorber side of the body, but the piston rod of bumper shock absorber receives the friction static influence when flexible, can adsorb partial dust.

However, in the prior art, hard contact exists between the piston rod and the dust cap of the automobile shock absorber during piston movement, so that the rod body and the connector are easy to collide with the dust cap to generate noise and abrasion during piston movement of the piston rod, and the service life of the shock absorber is influenced.

SUMMERY OF THE UTILITY MODEL

In view of the problems of the background art, the present invention provides the following technical solutions:

the utility model provides a type of making an uproar automobile shock absorber ware falls, includes the bumper shock absorber body, the bumper shock absorber body includes surge drum, shield and piston rod, the shield screw thread is installed in the surge drum upper end, the piston rod passes shield movable mounting in the surge drum, the shield upper end is provided with the section of thick bamboo of making an uproar falls, the laminating of the section of thick bamboo inner wall of making an uproar falls has the sealing washer, it has two exhaust holes to fall the radial run-through of a section of thick bamboo lower part of making an uproar, the exhaust post is installed through the external screw thread on piston rod upper portion, border department fixed mounting has the sealing ring under the exhaust post outside, sealing ring and the sealed cooperation of sealing washer inner wall.

The preferred, the sealing ring includes retainer plate and gasket, exhaust post outside lower part is opened there is the mounting groove, the retainer plate is fixed in the mounting groove, the gasket is cyclic annular sheet rubber, gasket inner circle fixed cover is in the retainer plate outside.

Preferably, the outer diameter of the fixed ring is consistent with the outer diameter of the exhaust column.

Preferably, a distance sleeve is further installed between the exhaust column and the connector of the piston rod, and the distance sleeve is propped against the lower end of the connector of the piston rod through the exhaust column installed in a threaded mode.

Preferably, the axial lead of the exhaust column, the axial lead of the noise reduction barrel and the axial lead of the piston rod are collinear.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the utility model, the noise reduction cylinder is additionally arranged on the dustproof cover, and sealing buffering is realized through the sealing ring, the exhaust column and the sealing ring, so that air is directly exhausted from the exhaust hole and sucked in, and soft contact and soft extraction of the piston rod during up-and-down stretching are realized, thus the effects of reducing noise and buffering the pressure of the piston rod can be achieved, and the service life of the shock absorber body is prolonged;

2. the upper end of the exhaust column is also provided with the distance sleeve, so that the distance between the exhaust column and the piston rod connector is controllable, the supporting force of the exhaust column when the exhaust column is pressed down is increased, the unidirectional abrasion of the threads between the piston rod and the exhaust column is reduced, and the stability of the exhaust column is improved.

Drawings

The utility model is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a schematic structural view of an embodiment of the present invention after installation;

FIG. 3 is a cross-sectional view of an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a seal ring according to an embodiment of the present invention;

FIG. 5 is a cross-sectional view of a seal ring in an embodiment of the present invention;

the embodiment of the utility model mainly comprises the following component symbols:

the damping cylinder-1, the piston rod-2, the dust cap-3, the noise reduction cylinder-4, the sealing ring-401, the exhaust hole-402, the exhaust column-5, the mounting groove-501, the sealing ring-6, the fixing ring-601, the sealing sheet-602 and the distance sleeve-7.

Detailed Description

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like, indicate orientations and positional relationships based on the orientations and positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be considered as limiting the present invention.

As shown in fig. 1-3, a type of making an uproar automobile shock absorber ware falls, including the bumper shock absorber body, the bumper shock absorber body includes surge drum 1, shield 3 and

piston rod

2, 3 threaded installations of shield are in 1 upper ends of surge drum, piston rod 2 passes 3 movable mounting of shield in

surge drum

1, 3 upper ends of shield are provided with and fall a section of thick bamboo 4 of making an uproar, 4 inner walls of a section of thick bamboo of making an uproar are laminated and are had sealing

washer

401, 4 lower parts of a section of thick bamboo of making an uproar radially run through there are two exhaust holes 402, exhaust post 5 is installed through the external screw thread on 2 upper portions of piston rod, border department fixed mounting has sealing ring 6 under the exhaust post 5 outside, sealing ring 6 and the sealed cooperation of sealing washer 401 inner wall.

According to the utility model, the noise reduction cylinder 4 is additionally arranged on the dustproof cover 3, and sealing buffering is realized through the sealing ring 401, the exhaust column 5 and the sealing ring 6, so that air is directly exhausted and sucked from the exhaust hole 402, soft contact and soft extraction of the piston rod 2 during up-and-down extension are realized, the effect of buffering the pressure of the piston rod 2 can be achieved while noise reduction is achieved, and the service life of the shock absorber body is prolonged.

As shown in fig. 4 and 5, the sealing ring 6 includes a fixing ring 601 and a sealing sheet 602, the lower portion of the outer side of the exhaust column 5 is provided with an installation groove 501, the fixing ring 601 is fixed in the installation groove 501, the sealing sheet 602 is an annular rubber sheet, and the inner ring of the sealing sheet 602 is fixedly sleeved on the outer side of the fixing ring 601.

The sealing sheet 602 which can be folded up and down facilitates the up-and-down movement of the exhaust column 5, so that the sealing is realized in the sealing ring 401, and the noise reduction effect is better achieved.

The outer diameter of the fixing ring 601 is identical to the outer diameter of the exhaust column 5.

Still install distance cover 7 between the connector of exhaust post 5 and piston rod 2, distance cover 7 pushes up at the connector lower extreme of piston rod 2 through the exhaust post 5 of screw thread installation.

According to the utility model, the distance sleeve 7 is arranged at the upper end of the exhaust column 5, so that the distance between the exhaust column 5 and the connector of the piston rod 2 is controllable, the supporting force of the exhaust column 5 when the exhaust column 5 is pressed down is increased, the one-way abrasion of the threads between the piston rod 2 and the exhaust column 5 is reduced, and the stability of the exhaust column 5 is improved.

The axial lead of the exhaust column 5, the axial lead of the noise reduction barrel 4 and the axial lead of the piston rod 2 are collinear.

In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations can be made by the worker in the light of the above teachings without departing from the spirit of the utility model. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

1. The utility model provides a type of making an uproar automobile shock absorber ware falls, includes the bumper shock absorber body, the bumper shock absorber body includes surge drum, shield and piston rod, the shield screw thread is installed in the surge drum upper end, the piston rod passes shield movable mounting in the surge drum, its characterized in that: the utility model discloses a seal structure of making an uproar, including a dust cover, a piston rod, a sealing ring and a sealing ring inner wall, the section of thick bamboo inner wall laminating of making an uproar falls, it has two exhaust holes to fall a radial penetration in section of thick bamboo lower part of making an uproar, the exhaust post is installed through the external screw thread in piston rod upper portion, the fixed mounting of border department has the sealing ring under the exhaust post outside, sealing ring and the sealed cooperation of sealing ring inner wall.

2. The noise-reducing type automobile shock absorber according to claim 1, wherein: the sealing ring comprises a fixing ring and a sealing piece, wherein a mounting groove is formed in the lower portion of the outer side of the exhaust column, the fixing ring is fixed in the mounting groove, the sealing piece is an annular rubber piece, and the inner ring of the sealing piece is fixedly sleeved on the outer side of the fixing ring.

3. The noise-reducing type automobile shock absorber according to claim 2, wherein: the outer diameter of the fixed ring is consistent with that of the exhaust column.

4. The noise-reducing type automobile shock absorber according to claim 3, wherein: still install the distance cover between the connector of exhaust column and piston rod, the exhaust column top that the distance cover was installed through the screw thread is at the connector lower extreme of piston rod.

5. The noise reduction type automobile shock absorber according to claim 4, wherein: the axial lead of the exhaust column, the axial lead of the noise reduction barrel and the axial lead of the piston rod are collinear.