CN212028535U

CN212028535U - Dust cover

Info

Publication number: CN212028535U
Application number: CN202020205480.6U
Authority: CN
Inventors: 梅军; 柏永权; 张功法
Original assignee: Zhejiang Manulife Automobile Parts Co ltd
Current assignee: Zhejiang Manulife Automobile Parts Co ltd
Priority date: 2020-02-25
Filing date: 2020-02-25
Publication date: 2020-11-27
Anticipated expiration: 2030-02-25

Abstract

The utility model relates to a dust-proof boot, including control rod linkage segment, fold section, elasticity go-between and hole linkage segment, control rod linkage segment, fold section and hole linkage segment all are ring shape, the hole linkage segment passes through the fold section with control rod linkage segment connecting seat is in the same place, the one end of elasticity go-between with the fold section links together, the other end with the hole linkage segment links together, the generating line of the inner peripheral surface of elasticity ring is the pitch arc, the generating line of the outer peripheral face of elasticity ring is the pitch arc, the skew direction of the generating line of the outer peripheral face of elasticity ring is the same with the skew direction of the generating line of the inner peripheral surface of elasticity ring, the generating line of the inner peripheral surface of elasticity ring is askew towards the axis of elasticity go-between. The utility model aims at providing a be difficult to produce phenomenon of rupture's dust cover between fold section and the hole linkage segment, the problem of the easy phenomenon of rupture that produces of junction of the fold section of having solved current dust cover and hole linkage segment is provided.

Description

Dust cover

Technical Field

The utility model relates to an automobile parts especially relates to a dust cover.

Background

When an operating lever (hereinafter referred to as an operating lever) of a parking brake and the like on an automobile and movably connected with an automobile body is installed, a hole which is much larger than the operating lever is required to be arranged on the automobile body so as to enable the operating lever to swing, at the moment, dust easily enters the operating lever and the automobile body through the hole to be connected with the movably connected position, so that the operating lever is unsmooth in action, and a dust cover is sleeved on the operating lever. The dust cover includes control rod linkage segment, fold section and hole linkage segment, and the control rod linkage segment is the ring shape, and the fold section is the ring shape, and the hole linkage segment passes through the fold section is in the same place with control rod linkage segment connecting seat. Wherein the operating rod connecting section is sleeved on the operating rod in a sealing manner, and the hole connecting section is connected on the hole in a sealing manner so that the dust cover covers the hole, thereby playing a role in preventing dust from entering through the hole.

However, the existing dust cover has the following disadvantages: in the use process, the connection part of the fold section and the hole connection section is easy to generate the fracture phenomenon.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a be difficult to produce phenomenon of rupture's dust cover between fold section and the hole linkage segment, the problem of the easy phenomenon of rupture that produces of junction of the fold section of having solved current dust cover and hole linkage segment is provided.

The technical problem is solved by the following technical scheme: the utility model provides a dust boot, includes control lever linkage segment, fold section and hole linkage segment, the control lever linkage segment is the ring shape, the fold section is the ring shape, the hole linkage segment passes through the fold section with control lever linkage segment connecting seat is in the same place, its characterized in that still includes the elasticity go-between, the one end of elasticity go-between with the fold section links together, the other end with the hole linkage segment links together, the generating line of the inner peripheral surface of elasticity go-between is the pitch arc, the generating line of the outer peripheral surface of elasticity go-between is the pitch arc, the skew direction of the generating line of the outer peripheral surface of elasticity go-between is the same with the skew direction of the generating line of the inner peripheral surface of elasticity go-between, the generating line of the inner peripheral surface of elasticity. During the use, will the utility model discloses the cover is established on the control rod, and the control rod stretches out from control rod linkage segment place end the utility model discloses and supply the user to operate, the control rod linkage segment is in the same place with control rod sealing connection, and the hole sealing connection that the hole linkage segment supplied the control rod to stretch out on the automobile body is in the same place and covers the hole that supplies the control rod to stretch out on the automobile body with the hole sealing connection that the control rod stretches out on the automobile. When the operating lever is operated to cause the dust cover to swing, the deformation of the connection part of the fold section and the hole connection section is generated on the elastic connection ring, so that the fracture phenomenon can be effectively prevented.

Preferably, one end of the hole connecting section, which is connected with the elastic connecting ring, is provided with a flanging, the flanging is connected with the elastic connecting ring together to realize the connection of the elastic connecting ring and the hole connecting section, the end face, which is far away from one end of the hole connecting section, of the flanging is a plane perpendicular to the axis of the hole connecting section, an annular boss extending along the circumferential direction of the fold section is arranged on the inner circumferential surface of one end of the fold section, which is connected with the elastic connecting ring, and the annular boss is located on the end face, which is far away from one end of the hole connecting section, of the flanging. The fracture phenomenon at the joint of the fold section and the hole connecting section can be further effectively prevented.

Preferably, an annular clamping groove extending along the circumferential direction of the hole connecting section is arranged on the outer circumferential surface of the hole connecting section. During the use, insert the hole linkage segment in the hole that supplies the control rod to stretch out on the automobile body, the edge card of the hole that supplies the control rod to stretch out on the automobile body is in ring groove and realize with the utility model discloses a connect. The connection is convenient.

Preferably, one end of the hole connecting section, which is far away from the fold section, is provided with a leading-in section of which the outer surface is a conical surface. The utility model discloses it is convenient when inserting in the hole that supplies the control rod to stretch out on the automobile body to play the effect of the convenience when improving the installation.

Preferably, the outer peripheral surface of the operating lever connecting section is provided with an annular anti-slip groove extending along the circumferential direction of the operating lever connecting section. When the operating rod and the operating rod connecting section cannot be reliably fixed together due to abrasion in the using process, the operating rod and the operating rod connecting section are reinforced by tightly holding the fastening piece (avoiding the hoop) in the annular anti-falling groove.

Preferably, the corrugated section comprises a plurality of conical rings distributed along the circumference of the corrugated section; between two adjacent conical rings, the large-diameter end of one conical ring faces the hole connecting section, and the large-diameter end of the other conical ring faces the operating rod connecting section; two adjacent conical rings at the small-diameter end are connected together through a first elastic ring, and a generatrix of the outer peripheral surface of the first elastic ring is an arc line which is bent towards an axis far away from the first elastic ring; two adjacent tapered rings at the large-diameter end are connected together through a second elastic ring, and a generatrix of the outer peripheral surface of the second elastic ring is an arc line bent towards the axis of the second elastic ring. Smooth and difficult damage when this technical scheme's fold section swings.

Preferably, the inner circumferential surface of the first elastic ring is provided with a first elastic ring annular groove extending along the circumferential direction of the first elastic ring, and a generatrix of the wall surface of the first elastic ring annular groove is an arc line. Can further avoid the utility model discloses the swing in-process damages.

Preferably, a straight line defined by a circle center of a circle where a generatrix of the wall surface of the annular groove of the first elastic ring portion is located and a circle center of a circle where a generatrix of the outer circumferential surface of the first elastic ring is located is perpendicular to an axis of the first elastic ring. Is not easy to be damaged when in use.

Preferably, the hole connecting section, the elastic connecting ring, the corrugated section and the operating lever connecting section are integrally formed together.

The utility model has the advantages of that: set up the elasticity go-between and link together fold section and hole linkage segment, when the shield was driven by the control lever and when swinging in the use, the department of deformation of fold section and hole linkage segment produced on the elasticity go-between, and the elasticity go-between can elastic deformation to make the junction of other hole linkage segments of fold section be difficult to produce the phenomenon of rupture.

Drawings

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

Fig. 2 is a schematic view of a usage state of the first embodiment.

Fig. 3 is a schematic diagram of a second embodiment of the present invention.

In the figure: the control rod comprises a control rod connecting section 1, a folding section 2, a hole connecting section 3, an annular clamping groove 4, a leading-in section 5, a flanging 6, an end face 7 of one end of the flanging, which is far away from the hole connecting section, an elastic connecting ring 8, a bus 9 of the inner peripheral surface of the elastic connecting ring, a bus 10 of the outer peripheral surface of the elastic connecting ring, an annular boss 11, an annular anti-falling groove 12, a conical ring 13, a first elastic ring 14, a bus 15 of the outer peripheral surface of the first elastic ring, a second elastic ring 16, a bus 17 of the outer peripheral surface of the second elastic ring, a control rod 18, an operating end 19 of the control rod, a hole 20 for extending out of the control rod on a vehicle body, a first elastic ring annular groove 21 and a.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and examples.

First embodiment, referring to fig. 1, a dust boot includes a control rod connection section 1, a corrugated section 2, and a hole connection section 3. The operating lever connecting section is a circular ring made of rubber. The fold section is a circular ring made of rubber. The hole connecting section is a circular ring made of rubber. And the outer peripheral surface of the hole connecting section is provided with an annular clamping groove 4 extending along the circumferential direction of the hole connecting section. And one end of the hole connecting section, which is far away from the fold section, is provided with a leading-in section 5 of which the outer surface is a conical surface. One end of the hole connecting section facing the fold section is provided with an outward flange 6. The end surface 7 of the flanging, which is far away from one end of the hole connecting section, is a plane vertical to the axis of the hole connecting section. The outward flange is integrally formed with one end of the elastic connecting ring 8. The elastic connecting ring is made of rubber. The other end of the elastic connecting ring is integrally formed with one end of the corrugated section. The generatrix 9 of the inner peripheral surface of the elastic connecting ring is an arc line. The generatrix 10 of the peripheral surface of the elastic connecting ring is arc elastic. The direction of distortion of the generatrix of the outer peripheral surface of the elastic ring is the same as the direction of distortion of the generatrix of the inner peripheral surface of the elastic ring. The generatrix of the inner peripheral surface of the elastic connection ring is distorted toward the axis of the elastic connection ring. An annular boss 11 extending along the circumferential direction of the corrugated section is arranged on the inner circumferential surface of one end of the corrugated section, which is connected with the elastic connecting ring. The projection of the annular boss towards the hole connecting section along the axial direction of the elastic connecting ring is positioned on the end face of one end of the flanging, which is far away from the hole connecting section. The other end of the fold section and the control rod connecting section are integrally formed together. The outer peripheral surface of the operating lever connecting section is provided with an annular anti-slip groove 12 extending along the circumferential direction of the operating lever connecting section. The corrugated section comprises a plurality of conical rings 13 distributed along the circumferential direction of the corrugated section; between two adjacent conical rings, the large-diameter end of one conical ring faces the hole connecting section, and the large-diameter end of the other conical ring faces the operating rod connecting section; two adjacent conical rings with small diameter ends are connected together through a first elastic ring 14, and a generatrix 15 of the outer peripheral surface of the first elastic ring is an arc line which is bent towards an axis far away from the first elastic ring; two adjacent conical rings with large-diameter ends are connected together through a second elastic ring 16, and a generatrix 17 of the outer peripheral surface of the second elastic ring is an arc line bent towards the axis of the second elastic ring. The operating rod connecting section, the elastic connecting ring folding section, the hole connecting section and the elastic connecting ring 4 are coaxial.

Referring to fig. 2, during the use, will the utility model discloses the cover is established on control rod 18, and the operation end 19 of control rod stretches out from control rod linkage segment place end the utility model discloses and supply the user to operate, the control rod linkage segment is in the same place with control rod sealing connection, inserts the hole 20 that supplies the control rod to stretch out on the automobile body with the hole linkage segment, and the edge card of the hole that supplies the control rod to stretch out on the automobile body is realized in ring groove with the utility model discloses a connect, this moment the utility model discloses cover the hole that supplies the control rod to stretch out on the automobile body.

The second embodiment is different from the first embodiment in that:

referring to fig. 3, a first elastic ring annular groove 21 extending along the circumferential direction of the first elastic ring is formed on the inner circumferential surface of the first elastic ring. The generatrix 22 of the wall surface of the annular groove of the first elastic ring part is an arc line. The straight line determined by the circle center of the circle where the generatrix of the wall surface of the annular groove of the first elastic ring is located and the circle center of the circle where the generatrix of the peripheral surface of the first elastic ring is located is perpendicular to the axis of the first elastic ring.

Claims

1. The utility model provides a dust cover, includes control lever linkage segment, fold section and hole linkage segment, the control lever linkage segment is the ring shape, the fold section is the ring shape, the hole linkage segment passes through the fold section with control lever linkage segment connecting seat is in the same place, its characterized in that still includes the elasticity go-between, the one end of elasticity go-between with the fold section links together, the other end with the hole linkage segment links together, the generating line of the inner peripheral surface of elasticity go-between is the pitch arc, the generating line of the outer peripheral face of elasticity go-between is the pitch arc, the skew direction of the generating line of the outer peripheral face of elasticity go-between is the same with the skew direction of the generating line of the inner peripheral surface of elasticity go-between, the generating line of the inner peripheral surface of.

2. The dust cover according to claim 1, wherein a flange is arranged at one end of the hole connecting section connected with the elastic connecting ring, the flange is connected with the elastic connecting ring to realize the connection of the elastic connecting ring with the hole connecting section, the end face of the flange, which is far away from one end of the hole connecting section, is a plane perpendicular to the axis of the hole connecting section, an annular boss extending along the circumferential direction of the corrugated section is arranged on the inner circumferential surface of the end of the corrugated section, which is connected with the elastic connecting ring, and the projection of the annular boss towards the hole connecting section along the axial direction of the elastic connecting ring is located on the end face of the flange, which is far away from one end of the hole connecting section.

3. The dust boot of claim 1, wherein the outer peripheral surface of the aperture attachment section is provided with an annular groove extending circumferentially around the aperture attachment section.

4. A dust boot as claimed in claim 3, wherein the end of the aperture connecting section remote from the corrugated section is provided with a lead-in section having a conical outer surface.

5. The dust cover of claim 1, wherein the lever connecting section is provided at an outer circumferential surface thereof with an annular slip-off preventing groove extending in a circumferential direction of the lever connecting section.

6. A dust boot in accordance with claim 1, wherein said pleat legs comprise a plurality of conical rings circumferentially distributed about the pleat legs; between two adjacent conical rings, the large-diameter end of one conical ring faces the hole connecting section, and the large-diameter end of the other conical ring faces the operating rod connecting section; two adjacent conical rings at the small-diameter end are connected together through a first elastic ring, and a generatrix of the outer peripheral surface of the first elastic ring is an arc line which is bent towards an axis far away from the first elastic ring; two adjacent tapered rings at the large-diameter end are connected together through a second elastic ring, and a generatrix of the outer peripheral surface of the second elastic ring is an arc line bent towards the axis of the second elastic ring.

7. The dust cover according to claim 6, wherein the first elastic ring has a first elastic ring annular groove extending circumferentially along the first elastic ring on an inner peripheral surface thereof, and a generatrix of a wall surface of the first elastic ring annular groove is an arc line.

8. The dust cover according to claim 7, wherein a straight line defined by a circle center of a circle where a generatrix of the wall surface of the annular groove of the first elastic ring portion is located and a circle center of a circle where a generatrix of the outer peripheral surface of the first elastic ring is located is perpendicular to an axis of the first elastic ring.

9. The dust boot of claim 1, wherein the aperture connection section, the resilient connection ring, the corrugated section and the lever connection section are integrally formed together.