CN210949656U - Dust cover and automobile shock absorber ware - Google Patents

Abstract

The utility model discloses a dust cover and an automobile shock absorber, which relate to the technical field of automobile parts and comprise a cover body and a cylindrical body which are connected with each other, wherein the middle part of the cover body is provided with a through hole for a connecting rod of the shock absorber to pass through, and the dust cover also comprises an annular sealing element; the hole wall of the through hole is provided with a limiting groove; the sealing element is arranged in the through hole, and the outer circular surface of the sealing element is provided with a limiting bulge matched with the limiting groove; the inner circle surface of the sealing element is sequentially provided with a plurality of lip edges matched with the shock absorber connecting rod from top to bottom, and the contact surface of each lip edge and the shock absorber connecting rod is an arc-shaped depressed part.

Description

Dust cover and automobile shock absorber ware

Technical Field

The utility model relates to an automobile parts technical field, specifically a shield and automobile shock absorber ware.

Background

The automobile shock absorber is mainly used for inhibiting the shock when the spring absorbs the shock and rebounds and the impact from the road surface. When the shock absorber passes through the uneven road surface, although the shock absorbing spring can filter the shock of the road surface, the spring can still reciprocate, and the shock absorber is used for inhibiting the spring from jumping.

The automobile shock absorber dust cap is a part arranged on an automobile shock absorber, and mainly plays a role in dust prevention and water prevention, and the quality of the dust cap directly influences the stability and the comfort of the whole automobile.

For example, patent document "a front shock absorber dust cap sealing structure" (patent application No. 201720088480.0) discloses a dust cap which can effectively improve the dust-proof and waterproof effects of a shock absorber, has a very obvious quality improvement effect, and is easy to develop and implement.

However, the technical scheme has the following defects:

1. the sealing element is connected with the connecting rod in a single-layer lip mode, and the sealing effect is poor.

2. Because the lip is in close contact with the connecting rod, in the motion process of the connecting rod, the lip can scrape off an oil film on the surface of the connecting rod, and the service life of a part is influenced.

SUMMERY OF THE UTILITY MODEL

To the defect that exists among the prior art, the utility model aims to provide a shield and automobile shock absorber ware has improved sealed effect, has prolonged the life of part.

In order to achieve the above purpose, the utility model adopts the technical proposal that: a dustproof cover comprises a cover body and a cylindrical body which are connected, wherein the middle part of the cover body is provided with a through hole for a connecting rod of a shock absorber to pass through, and the dustproof cover also comprises an annular sealing piece; the hole wall of the through hole is provided with a limiting groove; the sealing element is arranged in the through hole, and the outer circular surface of the sealing element is provided with a limiting bulge matched with the limiting groove; the inner circle surface of the sealing element is sequentially provided with a plurality of lip edges matched with the shock absorber connecting rod from top to bottom, and the contact surface of each lip edge and the shock absorber connecting rod is an arc-shaped concave part.

The further improvement lies in that: the outer side end of the through hole is flush with the cover body, and the inner side end of the through hole protrudes out of the cover body.

The further improvement lies in that: the outer wall of the cylindrical body is provided with a thread section matched with the shell of the shock absorber.

The further improvement lies in that: the lip limit is provided with three, all sets up in the slope of going up.

The further improvement lies in that: the sealing element is of an integrated structure formed by vulcanizing a framework and a rubber body.

The utility model also provides an automobile shock absorber, which comprises a shell and a connecting rod, wherein the shell is internally provided with a cylinder body, and the opening at the upper end of the shell is provided with the dustproof cover; the lower end of the cylinder body is provided with a bottom valve, and a piston valve is arranged in the cylinder body; one end of the connecting rod is connected with the piston valve, and the other end of the connecting rod penetrates out of the through hole of the cover body.

The further improvement lies in that: and an oil seal is arranged at the upper end of the cylinder body.

The beneficial effects of the utility model reside in that:

1. the utility model discloses in, the interior disc top-down of sealing member set gradually with the multilayer lip limit of bumper shock absorber connecting rod looks adaptation, even the lip limit of certain one deck became invalid, can not influence the leakproofness of part yet, improved the sealed effect of product.

2. The utility model discloses in, the contact surface of each lip limit and bumper shock absorber connecting rod is the arc depressed part, promptly at the motion process of connecting rod, can prevent that the oil film of connecting rod from being struck off, has prolonged the life of part.

3. The utility model discloses in, the outer disc of sealing member be provided with spacing arch of spacing groove looks adaptation, spacing effect is better.

Drawings

Fig. 1 is a schematic structural view of a dust cap in an embodiment of the present invention;

FIG. 2 is a sectional view of a dust cap according to an embodiment of the present invention;

FIG. 3 is an enlarged schematic view of the portion of the retaining slot of FIG. 2;

fig. 4 is a schematic structural diagram of a sealing member in an embodiment of the present invention;

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

fig. 6 is an enlarged schematic view of a lip portion in an embodiment of the present invention;

FIG. 7 is a schematic view illustrating the installation of the sealing member and the dust cap according to the embodiment of the present invention;

fig. 8 is a schematic structural view of an automobile shock absorber according to an embodiment of the present invention.

Reference numerals:

1-a cover body; 11-a through hole; 12-a cylindrical body; 13-a limiting groove; 14-a threaded segment;

2-a seal; 21-lip edge; 22-a limit bump; 23-an arcuate recess;

3-cylinder body; 31-a housing; 32-a bottom valve; 33-a piston valve; 34-a connecting rod; and 35-oil sealing.

Detailed Description

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout.

In the description of the present invention, it should be noted that, for the orientation words, such as the terms "center", "lateral (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., the orientation and the positional relationship are indicated based on the orientation or the positional relationship shown in the drawings, and the description is only for convenience of describing the present invention and simplifying the description, but not for indicating or implying that the device or the element referred to must have a specific orientation, be constructed and operated in a specific orientation, and should not be construed as limiting the specific protection scope of the present invention.

The technical solution and the advantages of the present invention will be more clear and clear by further describing the embodiments of the present invention with reference to the drawings of the specification. The embodiments described below are exemplary and are intended to be illustrative of the present invention, but should not be construed as limiting the invention.

Referring to fig. 1 to 3, an embodiment of the present invention provides a dust cover, including a cover body 1 and a cylindrical body 12 connected to each other, a through hole 11 for a connecting rod 34 of a shock absorber to pass through is provided in the middle of the cover body 1, and a limiting groove 13 is provided on the wall of the through hole 11; specifically, the outer end of the through hole 11 is flush with the cover 1, and the inner end of the through hole 11 protrudes from the cover 1. The outer wall of the cylindrical body 12 is provided with a threaded section 14 adapted to the damper housing 31.

Referring to fig. 4 to 7, the dust cap further includes a ring-shaped sealing member 2; the sealing element 2 is arranged in the through hole 11, and the outer circular surface of the sealing element 2 is provided with a limiting bulge 22 matched with the limiting groove 13; the inner circle surface of the sealing member 2 is provided with a plurality of lips 21 matched with the shock absorber connecting rod 34 from top to bottom in sequence, and the contact surface of each lip 21 and the shock absorber connecting rod 34 is an arc-shaped concave part 23. In this embodiment, three lips 21 are provided, each of which is inclined upward. Specifically, the sealing element 2 is formed by vulcanizing a framework and a rubber body into an integral structure, so that the integral strength of the sealing element is ensured.

Referring to fig. 8, an embodiment of the present invention further provides an automobile shock absorber, which includes a housing 31 and a connecting rod 34, wherein a cylinder 3 is disposed in the housing 31, and a dust cap is disposed at an opening at an upper end of the housing 31; the lower end of the cylinder body 3 is provided with a bottom valve 32, and a piston valve 33 is arranged in the cylinder body 3; one end of the link 34 is connected to the piston valve 33, and the other end of the link 34 protrudes from the through hole 11 of the lid body 1. Specifically, the upper end of the cylinder block 3 is provided with an oil seal 35.

In the description of the specification, reference to the description of "one embodiment," "preferably," "an example," "a specific example" or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention, and schematic representations of the terms in this specification do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

With the above structure and principle in mind, those skilled in the art should understand that the present invention is not limited to the above embodiments, and all modifications and substitutions based on the present invention and adopting the known technology in the art are within the scope of the present invention, which should be limited by the claims.

Claims (7)

1. The utility model provides a dust cover, is including the lid (1) and the barrel (12) that link to each other, the middle part of lid (1) is provided with through-hole (11) that connecting rod (34) that supply the bumper shock absorber passed, its characterized in that: also comprises an annular seal (2); the hole wall of the through hole (11) is provided with a limiting groove (13);

the sealing element (2) is arranged in the through hole (11), and the outer circular surface of the sealing element (2) is provided with a limiting bulge (22) matched with the limiting groove (13); the inner circle surface of the sealing element (2) is sequentially provided with a plurality of lip edges (21) matched with the shock absorber connecting rod (34) from top to bottom, and the contact surface of each lip edge (21) and the shock absorber connecting rod (34) is an arc-shaped concave part (23).

2. The dust cover of claim 1, wherein: the outer side end of the through hole (11) is flush with the cover body (1), and the inner side end of the through hole (11) protrudes out of the cover body (1).

3. The dust cover of claim 1, wherein: the outer wall of the cylindrical body (12) is provided with a thread section (14) matched with the shock absorber shell (31).

4. The dust cover of claim 1, wherein: the lip edges (21) are arranged in three numbers and are all obliquely arranged upwards.

5. The dust cover of claim 1, wherein: the sealing element (2) is of an integrated structure formed by a framework and a rubber body in a vulcanization mode.

6. An automobile shock absorber includes a housing (31) and a connecting rod (34), characterized in that: a cylinder body (3) is arranged in the shell (31), and a dust cover as claimed in claim 1 is arranged at an opening at the upper end of the shell (31); a bottom valve (32) is arranged at the lower end of the cylinder body (3), and a piston valve (33) is arranged in the cylinder body (3); one end of the connecting rod (34) is connected with the piston valve (33), and the other end of the connecting rod (34) penetrates out of the through hole (11) of the cover body (1).

7. The shock absorber for vehicle as claimed in claim 6, wherein: and an oil seal (35) is arranged at the upper end of the cylinder body (3).

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