CN212106926U

CN212106926U - TPE dust cover

Info

Publication number: CN212106926U
Application number: CN202020648131.1U
Authority: CN
Inventors: 苏招富
Original assignee: Zhejiang Dingfu Rubber Plastic Technology Co ltd
Current assignee: Zhejiang Dingfu Rubber Plastic Technology Co ltd
Priority date: 2020-04-25
Filing date: 2020-04-25
Publication date: 2020-12-08
Anticipated expiration: 2030-04-25

Abstract

The utility model discloses a TPE dust cover relates to a rubber and plastic articles for use, and its technical scheme main points are: the corrugated pipe comprises a corrugated pipe section, wherein a first fixing end and a second fixing end are respectively arranged at two ends of the corrugated pipe section, the size of the cross section of the first fixing end is larger than that of the cross section of the second fixing end, and an outer flange is arranged on the outer wall, far away from the corrugated pipe section, of the first fixing end; an inner flange is arranged on the outer wall, close to the corrugated pipe section, of the first fixing end, and an installation ring groove for installation of the pressure sleeve is formed between the outer flange and the inner flange. The outer wall of stiff end one is equipped with the draw-in groove, the draw-in groove extends annularly along the circumference of stiff end one, the draw-in groove is located between outer flange, the interior flange. The dust cover is provided with the inner flange, so that the pressing sleeve cannot collide with the elastic part of the corrugated pipe section, and the dust cover is not easy to damage; this dust cover has higher dustproof sealing performance, and structural strength is high.

Description

TPE dust cover

Technical Field

The utility model relates to a rubber and plastic articles for use, in particular to TPE dust cover.

Background

The dust cover is the article that play dustproof effect, and on the car, the dust cover of protection club, ball groove hookup location mostly is the tubulose TPE dust cover of ripple. TPE is thermoplastic elastomer, and this type of dust cover also is applied to the dustproof between guide arm, guide hole.

The prior Chinese utility model with the publication number of CN209238664U discloses a rubber dust cover, which comprises a shock absorber device, wherein a dust cover device is arranged outside the shock absorber device; the shock absorber device comprises a cylinder, an upper connecting rod, an upper shaft seat, a supporting ring, a guide rod, a spring, a supporting seat, a lower connecting rod and a lower shaft seat, wherein the upper end of the cylinder is fixedly connected with the upper connecting rod; the dust cover device comprises an annular seat, a circular groove, a dust cover, a lower flange, an upper flange, a compression ring, a compression sleeve and a through hole. The dust cover is made by rubber, has elasticity, and the circular recess provides installation space for the dust cover, is convenient for fix a position the dust cover, and the dust cover is provided with flange down, and lower flange cup joints with the circular recess slides.

The dust cover is positioned by the lower flange and the mounting position (namely, the pressing sleeve). When the dust cover is used for preventing dust of a ball rod and a ball groove, the dust cover can generate larger torsional deformation when in use; when the dust cover is deformed, the contact position of the pressing sleeve and the dust cover has the possibility of moving towards the direction of the corrugated pipe section, and the pressing sleeve can collide with the elastic part of the corrugated pipe section of the dust cover, so that the dust cover is damaged.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a TPE dust cover presses the elasticity position that the cover can not collide with the ripple pipeline section, and the dust cover is not fragile.

The above technical purpose of the present invention can be achieved by the following technical solutions: a TPE dust cover comprises a corrugated pipe section, wherein a first fixing end and a second fixing end are arranged at two ends of the corrugated pipe section respectively, the size of the cross section of the first fixing end is larger than that of the cross section of the second fixing end, and an outer flange is arranged on the outer wall, far away from the corrugated pipe section, of the first fixing end; an inner flange is arranged on the outer wall, close to the corrugated pipe section, of the first fixing end, and an installation ring groove for installation of the pressure sleeve is formed between the outer flange and the inner flange.

Through the technical scheme, the first fixed end is the large end of the dust cover and is used for being fixed with the ball seat or other fixed seats; the second fixed end is a small end of the dust cover and is used for being sleeved outside the ball rod or the ball pin and the guide rod. The pressing sleeve surrounds the fixed end I and is embedded in the mounting ring groove.

When the club activity made the dust cover deformation, this dust cover was through the limiting displacement of interior flange, and the contact position of pressing cover and dust cover can not remove to bellows section direction, then the elastic part that the bellows section was touched in the pressure cover can not collide with, and the dust cover is not fragile.

Preferably, the outer wall of stiff end one is equipped with the draw-in groove, the draw-in groove extends annularly along the circumference of stiff end one, the draw-in groove is located between outer flange, the interior flange.

Through above-mentioned technical scheme, the draw-in groove is used for supplying the snap ring embedding, and the snap ring is to the stiff end effect of location, improvement installation steadiness together.

Preferably, the inner wall of stiff end one is equipped with the bellying, the bellying extends annularly along the circumference of stiff end one, bellying, draw-in groove are located a stiff end axial same position.

Through the technical scheme, when the dust cover is sleeved at the installation position through the fixed end, the protruding part abuts against the outer wall of the installation position to achieve a good dust-proof sealing effect; after the clamping ring is arranged in the clamping groove, the elastic force of the clamping ring acts on the protruding part to further improve the dustproof effect.

Preferably, the longitudinal cross-sectional shape of the protrusion is a circular arc.

Through above-mentioned technical scheme, when the bellying increased with the pressure of mounted position, the bellying also increased with the area of contact of mounted position, and convex bellying can provide better leakproofness.

Preferably, the wall thickness of the first fixed end close to the corrugated pipe section is larger than that of the corrugated pipe section close to the first fixed end, and the transition is performed between the inner wall of the first fixed end and the inner wall of the corrugated pipe section through the arrangement of the arc surface.

Through the technical scheme, the thicker first fixed end can provide higher structural strength, so that the dust cover is stably installed; the thinner end of the bellows portion facilitates its deformation. Through the transition of the arc surface, the dust cover is not easy to crack when the corrugated pipe section and the fixed end are deformed.

Preferably, a positioning bulge is arranged on the end face of the fixed end, which is far away from the corrugated pipe section.

Through the technical scheme, the end face of the first fixing end and the mounting position of the first fixing end are convenient to position through the positioning protrusions.

To sum up, the utility model discloses the beneficial effect who contrasts in prior art does:

1. by arranging the inner flange, the pressing sleeve cannot collide with the elastic part of the corrugated pipe section, and the dust cover is not easy to damage;

2. this dust cover has higher dustproof sealing performance.

Drawings

FIG. 1 is a cross-sectional view of one TPE boot of an embodiment;

FIG. 2 is an enlarged view of FIG. 1 at A;

fig. 3 is a schematic view illustrating an installation of a TPE dust cover according to an embodiment.

In the figure, 1, a corrugated pipe section; 2. a first fixed end; 3. a second fixed end; 11. a circular arc surface; 21. an outer flange; 22. an inner flange; 23. mounting a ring groove; 24. a card slot; 25. a boss portion; 26. positioning the projection; 5. a shaft; 51. a ball groove; 52. a ball seat; 53. pressing the sleeve; 531. a snap ring; 54. and (6) mounting the cylinder.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, for the utility model discloses a TPE dust cover, including bellows section 1, the both ends of bellows section 1 are equipped with stiff end one 2, stiff end two 3 respectively. Bellows section 1, stiff end 2, stiff end two 3 three are by rubber materials integrated into one piece, and bellows section 1, stiff end 2, stiff end two 3 combination form the cylinder, and the inside cavity and the both ends of dust cover link up. The cross section shapes of the corrugated pipe section 1, the first fixing end 2 and the second fixing end 3 are all circular, wherein the cross section size of the first fixing end 2 is larger than that of the second fixing end 3. The cross-section referred to in this embodiment refers to the radial cross-section of the boot and the longitudinal cross-section referred to refers to the axial mid-section of the boot.

Referring to fig. 2 and 3, the wall thickness of the fixed end one 2 close to the corrugated pipe section 1 is greater than the wall thickness of the corrugated pipe section 1 close to the fixed end one 2, and the inner wall of the fixed end one 2 and the inner wall of the corrugated pipe section 1 are transited by arranging an arc surface 11. The thicker fixed end I2 can provide higher structural strength, so that the dust cover is stably installed; the end part of the thin corrugated pipe section 1 is convenient for deformation, and the dust cover is not easy to crack when the corrugated pipe section 1 and the fixed end I2 are deformed through the transition of the arc surface 11.

The outer wall that corrugated pipe section 1 was kept away from to stiff end 2 is equipped with outer flange 21, and stiff end 2 is close to corrugated pipe section 1's outer wall and is equipped with interior flange 22, and outer flange 21, interior flange 22 all extend annularly along stiff end 2's circumference, and outer flange 21, interior flange 22 and stiff end 2 are by rubber integrated into one piece. An installation ring groove 23 for installing the pressing sleeve 53 is formed between the outer flange 21 and the inner flange 22. The outer wall of the first fixing end 2 is provided with a clamping groove 24, the clamping groove 24 extends in the circumferential direction of the first fixing end 2 to form a ring, and the clamping groove 24 is located between the outer flange 21 and the inner flange 22.

The inner wall of the first fixing end 2 is integrally fixed with a protruding portion 25, the protruding portion 25 extends in a ring shape along the circumferential direction of the first fixing end 2, the protruding portion 25 and the clamping groove 24 are located at the same axial position of the first fixing end 2, and the longitudinal section of the protruding portion 25 is arc-shaped.

A positioning bulge 26 is integrally formed on the end face, away from the corrugated pipe section 1, of the fixed end I2, and the positioning bulge 26 extends in a ring shape along the circumferential direction of the fixed end I2.

When the dust cover is structurally attached to the ball bar 5 and the ball groove 51, the ball bar 5 is inserted through the dust cover, the first fixed end 2 is attached to the ball seat 52 (the ball groove 51 is provided on the ball seat 52), and the second fixed end 3 is attached to the outer wall of the ball bar 5. The ball seat 52 surrounds the first fixing end 2 through the pressing sleeve 53, the pressing sleeve 53 is embedded in the mounting ring groove 23, the pressing sleeve 53 is provided with a clamping ring 531, and the clamping ring 531 is embedded in the clamping groove 24 to form positioning. The dust cover is sleeved outside the installation tube 54 of the ball seat 52 through the fixed end I2, and the protruding part 25 abuts against the outer wall of the installation tube 54 to achieve a good dust-proof sealing effect. The pressing sleeve 53 is matched with the mounting cylinder 54 to fix the fixed end I2.

When the club 5 moves to deform the dust cover, the dust cover does not move towards the corrugated pipe section 1 through the limiting action of the inner flange 22, the contact position of the pressing sleeve 53 and the dust cover is not moved, the pressing sleeve 53 cannot collide with the elastic part of the corrugated pipe section 1, and the dust cover is not easy to damage.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. A TPE dust cover comprises a corrugated pipe section (1), wherein a first fixing end (2) and a second fixing end (3) are respectively arranged at two ends of the corrugated pipe section (1), the size of the cross section of the first fixing end (2) is larger than that of the cross section of the second fixing end (3), and an outer flange (21) is arranged on the outer wall, far away from the corrugated pipe section (1), of the first fixing end (2); the method is characterized in that: the outer wall that stiff end (2) are close to bellows section (1) is equipped with interior flange (22), form between outer flange (21), interior flange (22) and supply to press installation annular (23) of cover (53) installation.

2. A TPE dust cap as set forth in claim 1, wherein: the outer wall of stiff end (2) is equipped with draw-in groove (24), draw-in groove (24) extend annularly along the circumference of stiff end (2), draw-in groove (24) are located between flange (21), interior flange (22) outward.

3. A TPE dust cap as set forth in claim 2 wherein: the inner wall of stiff end (2) is equipped with bellying (25), bellying (25) extend annularly along the circumference of stiff end (2), bellying (25), draw-in groove (24) are located stiff end (2) axial same position.

4. A TPE dust cap as set forth in claim 3 wherein: the longitudinal section of the bulge (25) is arc-shaped.

5. A TPE dust cap as set forth in claim 1, wherein: the wall thickness that stiff end (2) are close to bellows section (1) is greater than the wall thickness that bellows section (1) are close to stiff end (2), pass through setting up arc surface (11) between the inner wall of stiff end (2) and the inner wall of bellows section (1) and pass through.

6. A TPE dust cap as set forth in claim 1, wherein: and a positioning bulge (26) is arranged on the end face of the fixed end I (2) deviating from the corrugated pipe section (1).