CN218377400U

CN218377400U - Low-drag brake caliper pin dust cover

Info

Publication number: CN218377400U
Application number: CN202221987746.2U
Authority: CN
Inventors: 刘畅; 汪诚涛
Original assignee: Wanxiang Qianchao Shanghai Automotive Systems Co ltd
Current assignee: Wanxiang Qianchao Shanghai Automotive Systems Co ltd
Priority date: 2022-07-29
Filing date: 2022-07-29
Publication date: 2023-01-24
Anticipated expiration: 2032-07-29

Abstract

The utility model discloses a low brake caliper round pin dust cover that drags, include: the dustproof cover comprises a dustproof cover body, wherein the dustproof cover body comprises a first channel, an abdominal cavity and a second channel which are sequentially connected, the abdominal cavity is arranged in a corrugated mode along the axial cross section of the dustproof cover body, a ring body is arranged on the inner wall of the first channel and arranged along the circumferential direction of the first channel, the minimum inner diameter of the abdominal cavity is larger than the inner diameter of the second channel, a clamping groove is formed in the outer wall of the second channel, and a plurality of grooves are formed in the inner wall of the second channel. Through the application of the utility model, the dust cover of the low-drag brake caliper pin is provided, the two ends of the dust cover are respectively provided with the ring body and the clamping groove, the dust cover is connected with the guide pin and the caliper body through the ring body and the clamping groove, the sealing effect is enhanced, the groove is arranged in the dust cover, the storage amount of lubricating oil is increased, the friction is further reduced, and the resetting of the caliper body is facilitated; the utility model discloses simple structure, the production of being convenient for.

Description

Low-drag brake caliper pin dust cover

Technical Field

The utility model relates to a spare part technical field is used in the automobile braking, especially relates to a low brake caliper round pin dust cover that drags.

Background

The floating caliper disc brake pushes the inner friction plate to the brake disc under the hydraulic action through the piston, and meanwhile, the reverse force acting on the caliper body pushes the caliper body to move along the guide pin, so that the outer friction plate is pressed against the brake disc, and the brake disc is clamped by the friction plates on two sides to realize braking. After braking is finished, the friction plate and the brake disc cannot be timely separated along with the return of the piston, dragging torque can be generated, and the problems of abnormal sound, abnormal abrasion of the friction plate, reduction of automobile fuel economy and the like can be caused. The guide pin dust cover is used as a matching piece of the guide pin and the guide pin support, and has direct influence on noise generated by vibration and impact of the guide pin and the pin hole on the guide pin support except for the functions of dust prevention and water prevention. The existing guide pin dust cover has large pressing force on the guide pin, and hinders the return of the guide pin to a certain extent, so that the outer friction plate is difficult to separate and has large drag; and the possibility that the edge of the dust cover is mistakenly turned into the guide pin assembling groove when the guide pin dust cover and the pin are assembled exists at the matched part of the guide pin dust cover and the pin, so that water leakage is caused.

SUMMERY OF THE UTILITY MODEL

In view of the above, in order to solve the above problem, an object of the present invention is to provide a low drag brake caliper pin dust cover, including:

the dustproof cover body, the dustproof cover body is including the first passageway that connects gradually, abdominal cavity and second passageway, the abdominal cavity is the corrugate setting along the axial cross-section of dustproof cover body, be provided with a ring body on the inner wall of first passageway, the ring body sets up along the circumference of first passageway, abdominal cavity minimum internal diameter is greater than the internal diameter of second passageway, be provided with a joint groove on the outer wall of second passageway, the joint groove sets up along the circumference of second passageway, be provided with a plurality of recesses on the inner wall of second passageway, the circumference setting of second passageway is all followed to a plurality of recesses.

In another preferred embodiment, the ring body divides the first passage into an anterior passage and a posterior passage, and the inner diameter of the anterior passage at the end away from the posterior passage gradually decreases from the inner diameter of the anterior passage at the end closer to the posterior passage.

In another preferred embodiment, a sealing bulge is arranged on the outer wall of one end of the second channel close to the abdominal cavity, the sealing bulge is arranged along the circumferential direction of the second channel, and the sealing bulge is arranged above the clamping groove.

In another preferred embodiment, the dust boot body is made of a rubber material.

The utility model discloses owing to adopted above-mentioned technical scheme, make it compare with prior art positive effect that has be: through the application of the utility model, a low-drag brake caliper pin dust cover is provided, a ring body and a clamping groove are respectively arranged at two ends of the dust cover, the dust cover is connected with a guide pin and a bracket through the ring body and the clamping groove, the sealing effect is enhanced, and a groove is arranged in the dust cover, the storage amount of lubricating oil is increased, and further the friction is reduced, so that the caliper body can be conveniently reset; the utility model discloses simple structure, the production of being convenient for.

Drawings

Fig. 1 is a schematic cross-sectional view of a low drag brake caliper pin dust cover of the present invention.

Fig. 2 is an installation schematic diagram of the low drag brake caliper pin dust cover of the present invention.

In the drawings: 1. a dust cover body; 2. a first channel; 3. the abdominal cavity; 4. a second channel; 5. a ring body; 6. a clamping groove; 7. a groove; 8. a front channel; 9. a back channel; 10. and sealing the protrusion.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and specific embodiments, but the present invention is not limited thereto.

1-2, a preferred embodiment of a low drag brake caliper pin dust cover is shown, comprising:

dust cover body 1, dust cover body 1 is including the first passageway 2 that connects gradually, abdominal cavity 3 and second passageway 4, abdominal cavity 3 is the corrugate setting along 1 axial cross-sections of dust cover body, be provided with a ring body 5 on the inner wall of first passageway 2, ring body 5 sets up along the circumference of first passageway 2, the minimum internal diameter of abdominal cavity 3 is greater than second passageway 4's internal diameter, be provided with a joint groove 6 on second passageway 4's the outer wall, joint groove 6 sets up along second passageway 4's circumference, be provided with a plurality of recesses 7 on second passageway 4's the inner wall, a plurality of recesses 7 all set up along second passageway 4's circumference.

In the in-service use process, locate the uide pin with 1 cover of dust cover body for ring body 5 and the uide pin joint in the first passageway 2 make joint groove 6 and the uide pin support joint on the 4 outer walls of second passageway simultaneously, accomplish the installation promptly.

Further, as a preferred embodiment, the grooves 7 are spirally arranged. Further, the spiral groove 7 increases the removal amount of the inner wall of the second channel 4, so that the storage amount of lubricating oil in the groove 7 is increased, and friction is reduced.

Further, as a preferred embodiment, the ring body 5 divides the first passage 2 into a front passage 8 and a rear passage 9, and the inner diameter of the front passage 8 at the end far from the rear passage 9 is gradually reduced to the inner diameter of the front passage 8 at the end near the rear passage 9.

Further, as a preferred embodiment, a plurality of bumps are disposed on the outer wall of the first channel 2, and the plurality of bumps are sequentially disposed along the circumferential direction of the first channel 2. Further, a plurality of lugs are isosceles trapezoid along first passageway 2's radial cross-section and set up, be provided with a mounting groove on the outer wall of uide pin, the circumference setting of uide pin is followed to the mounting groove, when ring body 5 in first passageway 2 installs in the mounting groove of uide pin, a plurality of lugs are used for preventing that ring body 5 from producing the skew in the mounting groove, specifically, when ring body 5 rocks the range in the mounting groove too big promptly, a plurality of lugs support with the outer wall card of uide pin, guarantee the stability of installation.

Further, as a preferred embodiment, a sealing protrusion 10 is disposed on an outer wall of one end of the second channel 4 close to the abdominal cavity 3, the sealing protrusion 10 is disposed along a circumferential direction of the second channel 4, and the sealing protrusion 10 is disposed above the clamping groove 6. Further, in the in-service use process, the uide pin support has a mounting hole, 4 covers of second passageway locate in the mounting hole of uide pin support, the outer wall of second passageway 4 blocks with the inner wall of the mounting hole of uide pin support promptly, the inner wall of the mounting hole of uide pin support is provided with a connection arch, the circumference setting along the mounting hole of connection arch, joint groove 6 sets up with the joint of connection arch, sealed arch 10 blocks with the outer wall of uide pin support and supports, the leakproofness between dust cover body 1 and the uide pin support has been guaranteed, a plurality of recesses 7 have reduced the area of contact of second passageway 4 with the uide pin outer wall, and then reduced frictional force.

Further, as a preferred embodiment, the dust cover body 1 is made of a rubber material.

The above is merely an example of the preferred embodiments of the present invention, and the embodiments and the protection scope of the present invention are not limited thereby.

The utility model discloses still have following embodiment on above-mentioned basis:

the utility model discloses a in the further embodiment, still include: the fastening belt is sleeved on the outer wall of the first channel 2. Further, when the installation is completed, the fastening belt is sleeved on the outer wall of the first channel 2, and the dust cover body 1 is prevented from falling off.

In the further embodiment of the utility model, a plurality of exhaust holes have been seted up on the outer wall of dust cover body 1, and a plurality of exhaust holes all communicate with abdominal cavity 3. Further, when the guide pin moves and drives the dust cover body 1 to contract, the exhaust hole is used for exhausting air in the dust cover body 1 to prevent the dust cover body 1 from being damaged.

The above is only a preferred embodiment of the present invention, and not intended to limit the scope of the invention, and it should be appreciated by those skilled in the art that various equivalent substitutions and obvious changes made in the specification and drawings should be included within the scope of the present invention.

Claims

1. A low drag brake caliper pin dust cover comprising:

the dustproof cover comprises a dustproof cover body, the dustproof cover body comprises a first channel, an abdominal cavity and a second channel which are connected in sequence, the abdominal cavity is along the corrugated setting of the axial cross section of the dustproof cover body, a ring body is arranged on the inner wall of the first channel, the ring body is along the circumferential setting of the first channel, the minimum inner diameter of the abdominal cavity is larger than the inner diameter of the second channel, a clamping groove is formed in the outer wall of the second channel, the clamping groove is along the circumferential setting of the second channel, a plurality of grooves are formed in the inner wall of the second channel, and the grooves are all along the circumferential setting of the second channel.

2. The low drag brake pin dust boot of claim 1, wherein said ring body divides said first passageway into a front passageway and a rear passageway, the inner diameter of the end of said front passageway distal from said rear passageway tapering to the inner diameter of the end of said front passageway proximal to said rear passageway.

3. The dust cover for the brake caliper pin with low drag according to claim 1, wherein a sealing protrusion is disposed on an outer wall of the second channel at an end close to the abdominal cavity, the sealing protrusion is disposed along a circumferential direction of the second channel, and the sealing protrusion is disposed above the clamping groove.

4. The low drag brake caliper pin dust boot of claim 1, wherein the dust boot body is made of a rubber material.