CN214331488U

CN214331488U - Dust cover based on automobile steering pull rod joint assembly

Info

Publication number: CN214331488U
Application number: CN202022968730.4U
Authority: CN
Inventors: 罗炳钢
Original assignee: Zhejiang Longbang Auto Parts Manufacturing Co ltd
Current assignee: Zhejiang Longbang Auto Parts Manufacturing Co ltd
Priority date: 2020-12-10
Filing date: 2020-12-10
Publication date: 2021-10-01
Anticipated expiration: 2030-12-10

Abstract

The utility model discloses a dust cover based on an automobile steering pull rod joint assembly, which is of a polyurethane integral structure and is provided with flexibility, the upper opening of a protective inner cavity in a dust cover body is connected with an upper connecting hole, a lower opening is connected with a lower connecting hole and forms a through inner cavity, the dust cover body is provided with a middle spittoon-shaped protective ring, the upper end of a circular arc ring sleeve which protrudes outwards in the middle of the protective ring is connected with the large end of an upper taper sleeve, the small end of the upper taper sleeve is connected with an upper bayonet, the lower end of the circular arc ring sleeve is connected with the large end of the lower taper sleeve, the small end of the lower taper sleeve is connected with a lower bayonet, buffer sections are arranged between the upper taper sleeve and the upper bayonet, and between the lower taper sleeve and the lower bayonet, the utility model can be sleeved outside the steering pull rod joint assembly, effectively prevent dust from entering the interior, and has the bayonet structure at the upper end and the lower end, has strong self-locking performance, is convenient to install and maintain, can be deformed arbitrarily and automatically closed in direction, and has no one-way stretch and tear in application, good dustproof effect and long service life.

Description

Dust cover based on automobile steering pull rod joint assembly

Technical Field

The utility model belongs to the technical field of the auto steering system, especially, a dust cover based on auto steering pull rod connects assembly.

Background

At present, all have the steering linkage joint assembly of hydro-cylinder helping hand in publicly known large-scale two bridges, the three-axle freight train, in order to avoid the dust to get into the spare part cooperation connection position of steering linkage joint assembly, the outside generally adopts the suit dust cover to shelter from, and common dust cover is awl section of thick bamboo formula, and upper and lower end respectively is connected with the spare part that the cooperation is connected the position, and the connected mode is for adopting the adhesive traditional mode of glue to it is tight that outside ribbon surrounding type presss from both sides tightly to add, and the drawback of similar mode is: firstly, due to the cone-cylinder structure, no buffer space exists in the axial direction, and the stretching generated in the application process can directly cause the hidden trouble of breakage of the fibers of the dust cover material; secondly, the dust cover is determined to be disposable by the inherent installation mode, only the damage type disassembly is needed, and the maintenance cost is relatively high.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art and provide a dust cover based on an automobile steering pull rod joint assembly, which is of a polyurethane integrated structure and has flexibility, the upper opening of a protective inner cavity in the dust cover body is connected with an upper connecting hole, a lower opening is connected with a lower connecting hole to form a through inner cavity, the dust cover body is provided with a middle spittoon-shaped protective ring, the upper end of a circular arc ring sleeve which protrudes outwards in the middle of the protective ring is connected with the big end of an upper taper sleeve, the small end of the upper taper sleeve is connected with an upper bayonet, the lower end of the circular arc ring sleeve is connected with the big end of the lower taper sleeve, the small end of the lower taper sleeve is connected with a lower bayonet, buffer sections are arranged between the connection part of the upper taper sleeve and the upper bayonet and between the lower taper sleeve and the lower bayonet, the utility model can be sleeved outside the steering pull rod joint assembly to effectively prevent dust from entering the interior, and has the bayonet structure at the upper end and the lower end, has strong self-locking property and convenient installation and maintenance, can deform at will and automatically fit in the direction, has no unidirectional stretching and tearing in application, good dustproof effect and long service life.

In order to achieve the above purpose, the technical scheme of the utility model is that: a dust cover based on an automobile steering pull rod joint assembly is of an integrated structure and comprises a dust cover body, wherein a protection inner cavity expanding towards the outer circumference is arranged in the dust cover body, the upper opening of the protection inner cavity is connected with an upper connecting hole, the lower opening of the protection inner cavity is connected with a lower connecting hole, and the protection inner cavity, the upper connecting hole and the lower connecting hole form a communicated inner cavity;

the dustproof cover body is provided with a protection ring in a middle of a spittoon shape, an arc ring sleeve protruding outwards is arranged in the middle of the protection ring, the upper end of the arc ring sleeve is connected with the large end of an upper conical sleeve, the small end of the upper conical sleeve is connected with an upper bayonet, the lower end of the arc ring sleeve is connected with the large end of a lower conical sleeve, and the small end of the lower conical sleeve is connected with a lower bayonet;

a buffer section is arranged at the joint of the upper taper sleeve and the upper bayonet, and a buffer section is arranged between the lower taper sleeve and the lower bayonet.

It is further provided that the circumferential wall of the upper taper sleeve is gradually thickened from bottom to top.

Further, the width of the buffer section is not less than 5 mm.

Further, the dust cover body is made of polyurethane, and the Shore hardness is not less than 55 degrees.

The utility model has the advantages that: the utility model discloses can the suit in the outside of steering linkage joint assembly, prevent that the dust gets into inside effectively, the structure of upper and lower end bayonet type, strong self-locking nature, installation and maintenance convenience can be arbitrary deformation and the direction is automatic agrees with, does not have unidirectional stretching and tears in using, and is dustproof effectual, long service life.

Drawings

Fig. 1 is a schematic view of the present invention.

In the figure: the dustproof cover comprises a dustproof cover body 1, an upper bayonet 2, an upper taper sleeve 3, an arc-shaped ring sleeve 4, a lower taper sleeve 5, a protective ring 6, a lower bayonet 7, an upper connecting hole 8, a protective inner cavity 9, a lower connecting hole 10 and a buffer section 11.

Detailed Description

The technical solution of the present invention is further specifically described below by way of examples and with reference to the accompanying drawings.

As shown in fig. 1, a dust cover based on an automobile steering pull rod joint assembly is of an integrated structure, a protective inner cavity 9 expanded outwards in the circumference is arranged in a dust cover body 1, an upper opening of the protective inner cavity 9 is connected with an upper connecting hole 8, a lower opening of the protective inner cavity is connected with a lower connecting hole 10, the protective inner cavity 9, the upper connecting hole 8 and the lower connecting hole 10 form a through inner cavity, and the protective inner cavity 9 is in a spherical hole shape and has a large axial tensile deformation range and a large radial distortion deformation value;

the dust cover body 1 is made of polyurethane, the Shore hardness is not less than 55 degrees, the dust cover body has high flexibility and tensile strength, the middle of the middle protective ring 6 is provided with an outward convex arc ring sleeve 4, the upper end of the middle protective ring is connected with the large end of the upper taper sleeve 3, the lower end of the middle protective ring is connected with the large end of the lower taper sleeve 5, the circumferential wall of the upper taper sleeve 3 is gradually thickened from bottom to top, the upper axial traction force can be provided, the arc ring sleeve 4 is prevented from collapsing downwards under the action of self weight, the integral extension and natural state of the protective ring 6 are kept, the small end of the upper taper sleeve 3 is connected with the upper bayonet 2, the small end of the lower taper sleeve 5 is connected with the lower bayonet 7, and an elastomer capable of axial stretching is formed,

go up taper sleeve 3 and establish buffer segment 11 with last bayonet socket 2 junction, establish buffer segment 11 between lower taper sleeve 5 and lower bayonet socket 7, the width of buffer segment 11 is not less than 5mm, the installation of being convenient for.

During the application, dust cover body 1 suit is in the outside of steering linkage joint assembly, prevents effectively that the dust from getting into inside, the structure of upper and lower end bayonet type, and is strong from the lock nature, and installation and maintenance are convenient, can deform wantonly and the direction agrees with automatically, does not have unidirectional stretching and tear in the application, and is dustproof effectual, long service life.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the protection scope of the present invention.

Claims

1. The utility model provides a dust cover based on car steering linkage connects assembly, formula structure as an organic whole, its characterized in that: the dustproof cover comprises a dustproof cover body (1), wherein a protective inner cavity (9) which expands outwards circumferentially is arranged in the dustproof cover body (1), the upper opening of the protective inner cavity (9) is connected with an upper connecting hole (8), the lower opening of the protective inner cavity (9) is connected with a lower connecting hole (10), and the protective inner cavity (9), the upper connecting hole (8) and the lower connecting hole (10) form a through inner cavity;

the dustproof cover comprises a dustproof cover body (1), wherein a middle spittoon-shaped protective ring (6) is arranged on the dustproof cover body, an arc ring sleeve (4) protruding outwards is arranged in the middle of the protective ring (6), the upper end of the arc ring sleeve (4) is connected with the large end of an upper taper sleeve (3), the small end of the upper taper sleeve (3) is connected with an upper bayonet (2), the lower end of the arc ring sleeve (4) is connected with the large end of a lower taper sleeve (5), and the small end of the lower taper sleeve (5) is connected with a lower bayonet (7);

go up taper sleeve (3) and last bayonet socket (2) junction and establish buffer segment (11), establish buffer segment (11) between lower taper sleeve (5) and lower bayonet socket (7).

2. The dust cover based on the steering tie-rod joint assembly of the automobile as claimed in claim 1, wherein: the circumferential wall of the upper taper sleeve (3) is gradually thickened from bottom to top.

3. The dust cover based on the steering tie-rod joint assembly of the automobile as claimed in claim 1, wherein: the width of the buffer section (11) is not less than 5 mm.

4. The dust cover based on the steering tie-rod joint assembly of the automobile as claimed in claim 1, wherein: the dust cover body (1) is made of polyurethane, and the Shore hardness is not less than 55 degrees.