CN214305002U

CN214305002U - Valve seat for automobile shock absorber

Info

Publication number: CN214305002U
Application number: CN202120580325.7U
Authority: CN
Inventors: 徐信国; 刘姝彤; 黄益军
Original assignee: Ningbo Ningjiang Powder Metallurgy Co ltd
Current assignee: Ningbo Ningjiang Powder Metallurgy Co ltd
Priority date: 2021-03-22
Filing date: 2021-03-22
Publication date: 2021-09-28
Anticipated expiration: 2031-03-22

Abstract

The utility model discloses a valve seat for automobile shock absorber, including the valve seat body, the outward flange department of valve seat body upper end is provided with the annular step that is used for with the lower extreme gomphosis of the work cylinder in the automobile shock absorber, be provided with the annular clamping groove on the inside wall of annular step, inlay on the bottom surface of annular step and be equipped with the sealing washer, the outward flange of sealing washer flushes with the outward flange of valve seat body, be provided with the annular vertical limit that upwards extends on the interior tip of sealing washer, the embedding of annular vertical limit is in the annular clamping groove, the periphery wall of annular vertical limit protrudes from the interior perisporium of annular clamping groove, after the valve seat body assembles with the work cylinder, the periphery wall of annular vertical limit is laminated with the interior perisporium of work cylinder and the up end of sealing washer is supported and leaned on with the lower terminal surface of work cylinder; the utility model discloses can improve the sealed effect between disk seat body and the working cylinder to can effectively avoid appearing the phenomenon of oil leak between disk seat body and the working cylinder.

Description

Valve seat for automobile shock absorber

Technical Field

The utility model relates to an automobile shock absorber technical field, concretely relates to disk seat for automobile shock absorber.

Background

The valve seat is an important part in the automobile shock absorber, the valve seat is arranged at the lower end of a working cylinder barrel positioned in the automobile shock absorber when in use, and a sealing structure is arranged between the outer peripheral wall of the valve seat and the inner peripheral wall of the working cylinder barrel.

SUMMERY OF THE UTILITY MODEL

The utility model provides a not enough to prior art, the utility model provides a disk seat for automobile shock absorber, its working cylinder with in the automobile shock absorber assembly back, can realize double-seal structure between disk seat body and the working cylinder, so, can improve the sealed effect between disk seat body and the working cylinder to can effectively avoid appearing the phenomenon of oil leak between disk seat body and the working cylinder, and then can ensure automobile shock absorber's working property, and can improve automobile shock absorber's life.

The utility model discloses a valve seat for automobile shock absorber, which comprises a valve seat body, wherein the middle part of the valve seat body is provided with a through hole for a valve rod in the automobile shock absorber to pass through, the through hole is coaxially arranged with the valve seat body, the outer edge of the upper end of the valve seat body is provided with an annular step for being embedded with the lower end of a working cylinder barrel in the automobile shock absorber, the inner side wall of the annular step is provided with an annular clamping groove, the bottom surface of the annular step is embedded with a sealing ring, the outer edge of the sealing ring is flush with the outer edge of the valve seat body, the inner end part of the sealing ring is provided with an annular vertical edge extending upwards, the annular vertical edge is embedded in the annular clamping groove, the outer peripheral wall of the annular vertical edge protrudes out of the inner peripheral wall of the annular clamping groove, after the valve seat body is assembled with the working cylinder barrel, the periphery wall of the annular vertical edge is attached to the inner periphery wall of the working cylinder barrel, and the upper end face of the sealing ring abuts against the lower end face of the working cylinder barrel.

The utility model discloses a valve seat for automobile shock absorber, wherein, the outer edge of the upper end of the valve seat body is provided with an annular guide surface which is used for being matched and guided with the inner peripheral wall of the working cylinder barrel so as to be convenient for the lower end of the working cylinder barrel to be embedded on the annular step; through the setting of annular spigot surface, when the lower extreme of work cylinder and the annular step on the disk seat body gomphosis, the internal perisporium of work cylinder can lead with the cooperation of annular spigot surface to the lower extreme gomphosis of convenient work cylinder is to the annular step.

The utility model discloses a valve seat for automobile shock absorber, wherein, the outer edge of the upper end of the annular vertical edge is provided with an annular chamfer surface which is used for being matched and guided with the inner peripheral wall of the working cylinder barrel so as to be convenient for the annular vertical edge to be embedded into the working cylinder barrel; through the setting of annular chamfer face, when annular vertical limit and work cylinder inlay, annular chamfer face can lead with the interior perisporium cooperation of work cylinder in order to make things convenient for annular vertical limit to imbed into work cylinder.

The utility model discloses a valve seat for automobile shock absorber, wherein, the edge of valve seat body lower extreme face integrated into one piece has a plurality of bosss that are circumference evenly distributed, the lower extreme of every boss all is used for supporting on the interior bottom of the base in the automobile shock absorber, the outer edge of every boss lower extreme all is provided with the inclined plane that is used for leaning on with the interior bottom of the base in the automobile shock absorber, the lateral surface middle part of every boss all is provided with the recess that extends along the radial direction of valve seat body; after the groove is formed in the middle of the outer side face of each boss, the structural strength of each boss can be improved, and the purpose of saving material cost can be achieved (metal powder materials can be saved due to the fact that the valve seat body is formed by pressing of metal powder).

The utility model discloses a valve seat for automobile shock absorber, wherein, the inner peripheral wall of the upper end of the through hole is provided with an annular conical surface which is used for matching with the outer surface of the valve rod in the automobile shock absorber to guide so as to facilitate the valve rod to pass through the through hole; through the setting of the annular conical surface, when the valve rod is about to pass the through-hole, the periphery wall of valve rod can be with the cooperation direction of annular conical surface so that the valve rod passes the through-hole.

The utility model discloses after with the working cylinder assembly in the automobile shock absorber, can realize double seal's structure between disk seat body and the working cylinder, sealing between the internal perisporium of annular step and the internal perisporium of working cylinder can be realized to the vertical limit of annular on the sealing washer promptly, the sealing washer then can realize sealed between the lower extreme of working cylinder and the bottom surface of annular step, so, can improve the sealed effect between disk seat body and the working cylinder, thereby can effectively avoid appearing the phenomenon of oil leak between disk seat body and the working cylinder, and then can ensure automobile shock absorber's working property, and can improve automobile shock absorber's life.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

FIG. 1 is a perspective view of a valve seat body;

FIG. 2 is a perspective view of the valve seat body;

FIG. 3 is a schematic cross-sectional view of the assembled seal ring and valve seat body;

fig. 4 is an enlarged schematic view of a portion a in fig. 3.

Detailed Description

In the following description, numerous implementation details are set forth in order to provide a more thorough understanding of the present invention. It should be understood, however, that these implementation details should not be used to limit the invention. That is, in some embodiments of the invention, details of these implementations are not necessary. In addition, some conventional structures and components are shown in simplified schematic form in the drawings.

In addition, the descriptions related to "first", "second", etc. in the present invention are only for description purposes, not specifically referring to the order or sequence, and are not intended to limit the present invention, but only to distinguish the components or operations described in the same technical terms, and are not to be construed as indicating or implying any relative importance or implicit indication of the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

The utility model discloses a valve seat for automobile shock absorber, including valve seat body 1, the middle part of valve seat body 1 is provided with through-hole 11 for the valve rod in the automobile shock absorber to pass, through-hole 11 and valve seat body 1 are coaxial to be set up, the outer edge department of the upper end of valve seat body 1 is provided with annular step 12 for the lower extreme gomphosis of the working cylinder barrel in the automobile shock absorber, annular neck 13 is provided on the inside wall of annular step 12, the bottom surface of annular step 12 is inlayed and is equipped with sealing washer 2, the outer edge of sealing washer 2 is flush with the outer edge of valve seat body 1, the interior tip of sealing washer 2 is provided with the vertical limit 21 of annular that upwards extends, the vertical limit 21 of annular is inlayed in annular neck 13, the outer peripheral wall of the annular vertical edge 21 protrudes out of the inner peripheral wall of the annular clamping groove 13, after the valve seat body 1 is assembled with the working cylinder barrel, the peripheral wall of the annular vertical edge 21 is attached to the inner peripheral wall of the working cylinder, and the upper end face of the sealing ring 2 abuts against the lower end face of the working cylinder.

An annular guide surface 14 which is used for being matched with the inner peripheral wall of the working cylinder barrel for guiding so as to facilitate the lower end of the working cylinder barrel to be embedded on the annular step 12 is arranged at the outer edge of the upper end of the valve seat body 1; through the setting of annular spigot surface, when the lower extreme of work cylinder and the annular step on the disk seat body gomphosis, the internal perisporium of work cylinder can lead with the cooperation of annular spigot surface to the lower extreme gomphosis of convenient work cylinder is to the annular step.

An annular chamfer surface 22 which is used for being matched with the inner peripheral wall of the working cylinder barrel for guiding so as to facilitate the annular vertical edge 21 to be embedded into the working cylinder barrel is arranged at the outer edge of the upper end of the annular vertical edge 21; through the setting of annular chamfer face, when annular vertical limit and work cylinder inlay, annular chamfer face can lead with the interior perisporium cooperation of work cylinder in order to make things convenient for annular vertical limit to imbed into work cylinder.

A plurality of bosses 15 which are uniformly distributed in the circumferential direction are integrally formed at the edge of the lower end face of the valve seat body 1, the lower end of each boss 15 is used for being supported on the inner bottom of a base in an automobile shock absorber, an inclined plane 16 which is used for abutting against the inner bottom of the base in the automobile shock absorber is arranged at the outer edge of the lower end of each boss 15, and a groove 17 which extends along the radial direction of the valve seat body 1 is arranged in the middle of the outer side face of each boss 15; after the groove is formed in the middle of the outer side face of each boss, the structural strength of each boss can be improved, and the purpose of saving material cost can be achieved (metal powder materials can be saved due to the fact that the valve seat body is formed by pressing of metal powder).

The inner peripheral wall of the upper end of the through hole 11 is provided with an annular conical surface 18 which is used for being matched and guided with the outer surface of a valve rod in the automobile shock absorber so as to facilitate the valve rod to pass through the through hole 11; through the setting of the annular conical surface, when the valve rod is about to pass the through-hole, the periphery wall of valve rod can be with the cooperation direction of annular conical surface so that the valve rod passes the through-hole.

The above description is only an embodiment of the present invention, and is not intended to limit the present invention. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims

1. The utility model provides a disk seat for automobile shock absorber, includes disk seat body (1), the middle part of disk seat body (1) is provided with through-hole (11) that are arranged in supplying the valve rod among the automobile shock absorber to pass, through-hole (11) and disk seat body (1) coaxial setting, disk seat body (1) upper end outward flange department be provided with be used for with the annular step (12) of the lower extreme gomphosis of the working cylinder barrel among the automobile shock absorber, its characterized in that: be provided with ring groove (13) on the inside wall of ring step (12), it is equipped with sealing washer (2) to inlay on the bottom surface of ring step (12), the outward flange of sealing washer (2) flushes with the outward flange of disk seat body (1), be provided with the vertical limit of annular (21) of upwards extending on the interior tip of sealing washer (2), the embedding of the vertical limit of annular (21) is in ring groove (13), the internal perisporium of the vertical limit of annular (21) protrusion in ring groove (13), disk seat body (1) and work cylinder assembly back, the peripheral wall of the vertical limit of annular (21) with the laminating of the internal perisporium of work cylinder just the up end of sealing washer (2) with the lower terminal surface of work cylinder offsets and leans on.

2. The valve seat for the automobile shock absorber as claimed in claim 1, wherein the outer edge of the upper end of the valve seat body (1) is provided with an annular guide surface (14) for guiding in cooperation with the inner peripheral wall of the working cylinder so as to facilitate the lower end of the working cylinder to be fitted onto the annular step (12).

3. The valve seat for the vibration damper of the automobile according to claim 1, wherein an annular chamfered surface (22) for guiding in cooperation with an inner peripheral wall of the working cylinder to facilitate the insertion of the annular vertical edge (21) into the working cylinder is provided at an outer edge of an upper end of the annular vertical edge (21).

4. The valve seat for the automobile shock absorber is characterized in that a plurality of bosses (15) which are uniformly distributed in the circumferential direction are integrally formed at the edge of the lower end face of the valve seat body (1), the lower end of each boss (15) is used for being supported on the inner bottom of a base in the automobile shock absorber, an inclined surface (16) which is used for abutting against the inner bottom of the base in the automobile shock absorber is arranged at the outer edge of the lower end of each boss (15), and a groove (17) which extends along the radial direction of the valve seat body (1) is arranged in the middle of the outer side face of each boss (15).

5. The valve seat for the shock absorber of the automobile as set forth in claim 1, wherein the inner peripheral wall of the upper end of the through hole (11) is provided with an annular tapered surface (18) for guiding in cooperation with the outer surface of the valve stem in the shock absorber of the automobile to facilitate the passage of the valve stem through the through hole (11).