CN220168406U - Piston dust cover for brake caliper and brake caliper - Google Patents

Abstract

The utility model discloses a piston dust cover for a brake caliper and the brake caliper, wherein the brake caliper is provided with a brake caliper body and a piston, the piston is movably arranged on the brake caliper body, and the piston dust cover comprises: the dustproof cover body is suitable for being arranged between the brake caliper body and the piston, and is sleeved on the piston; the framework is arranged in the dust cover body. Therefore, according to the piston dust cover disclosed by the embodiment of the utility model, the skeleton is arranged in the dust cover body, so that the structural strength of the dust cover body is improved, and the restoring force acting on the piston is generated when the dust cover body is deformed and restored, so that the piston can be quickly restored under the auxiliary action of the piston dust cover, the restoring quantity of the piston is increased, the dragging moment of a brake caliper is reduced, and the working reliability of the brake caliper is improved.

Description

Piston dust cover for brake caliper and brake caliper

Technical Field

The utility model relates to the field of vehicles, in particular to a piston dust cover for a brake caliper and the brake caliper with the piston dust cover.

Background

In the related art, the function of the existing piston dust cover is single and is dustproof and splash-proof, so that the piston arranged on the brake caliper body is protected, and the existing piston dust cover has no other functions and is single in functionality.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, an object of the present utility model is to provide a piston dust cover for a brake caliper, so that the piston dust cover can assist in returning of a piston in the process of returning of the piston, increase the returning amount of the piston, and improve the working reliability of the brake caliper.

The utility model also provides a brake caliper with the piston dust cover.

The piston dust cover for a brake caliper according to the present utility model includes:

the dustproof cover body is suitable for being arranged between the brake caliper body and the piston, and is sleeved on the piston;

the framework is arranged in the dust cover body.

According to the piston dust cover for the brake caliper, the framework is arranged in the dust cover body, so that the structural strength of the dust cover body is improved, and restoring force acting on the piston is generated when the dust cover body is deformed and restored, so that the piston can be quickly restored under the auxiliary action of the piston dust cover, the restoring quantity of the piston is increased, the dragging moment of the brake caliper is reduced, and the working reliability of the brake caliper is improved.

In some examples of the utility model, the dust cover body has a first main body portion, the skeleton is disposed in the first main body portion, the first main body portion is sleeved on the piston, and an outer peripheral wall of the first main body portion is adapted to be in interference fit with the brake caliper body, and an inner peripheral wall of the first main body portion is adapted to be in interference fit with the piston.

In some examples of the present utility model, the dust cover body further has a second main body portion connected to the first main body portion, the second main body portion is sleeved on the piston, a mounting groove is formed in an outer peripheral wall of the piston, and at least part of the second main body portion is located in the mounting groove.

In some examples of the utility model, the skeleton includes a first support section and a second support section connected, the first support section being parallel to the axial direction of the dust cover body, and the first support section being disposed adjacent to the outer peripheral wall of the first main body portion, the second support section forming an angle with the first support section and extending toward the inner peripheral wall of the first main body portion.

In some examples of the utility model, the first support section and the second support section are an integral piece.

In some examples of the utility model, the framework is configured as a ring structure.

In some examples of the utility model, the skeleton includes a plurality of sub-skeletons that are sequentially arranged along the circumferential direction of the dust cover body.

In some examples of the utility model, the outer peripheral wall of the first body portion is formed with a first stopper portion, and the brake caliper is formed with a second stopper portion that is in stopper engagement with the first stopper portion.

In some examples of the present utility model, the first limiting portion is one of a limiting boss and a limiting groove, and the second limiting portion is the other of the limiting boss and the limiting groove, and the limiting boss is installed in the limiting groove.

The brake caliper according to the present utility model includes:

the brake caliper comprises a brake caliper body and a piston, wherein the piston is movably arranged on the brake caliper body;

the piston dust cover is arranged between the brake caliper body and the piston and sleeved on the piston, and the piston dust cover is the piston dust cover for the brake caliper.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

FIG. 1 is a schematic perspective view of a piston dust cap according to an embodiment of the utility model;

FIG. 2 is a schematic illustration of an assembly of a piston dust cap, a brake caliper body and a piston in accordance with an embodiment of the present utility model;

FIG. 3 is an enlarged view at A in FIG. 2;

fig. 4 is a schematic view of a dust cap body according to an embodiment of the present utility model in a deformed state.

Reference numerals:

a piston dust cap 100;

a dust cover body 1; a first body portion 1a; a first stopper 10;

a second body portion 1b; a deformation section 11; a fixed block 12;

a framework 2; a first support section 21; a second support section 22;

brake caliper 1000;

a brake caliper body 200; a second stopper 201; a hydraulic cylinder 202;

a piston 300; a mounting groove 30;

a limit boss 31; a limit groove 32; a seal groove 33;

seal ring 400.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

A piston dust cover 100 for a brake caliper 1000 according to an embodiment of the present utility model will be described with reference to fig. 1 to 4, and the piston dust cover 100 may be applied to the brake caliper 1000, but the present utility model is not limited thereto, and the brake caliper 1000 may be applied to other devices where the brake caliper 1000 needs to be disposed, and the present utility model will be described with reference to the application of the piston dust cover 100 to the brake caliper 1000.

As shown in fig. 2, the brake caliper 1000 has a caliper body 200 and a piston 300, the piston 300 is movably mounted to the caliper body 200, the caliper body 200 may be formed with a hydraulic cylinder 202, the piston 300 is movably mounted in the hydraulic cylinder 202, and hydraulic oil is pumped or sucked into the hydraulic cylinder 202 by a hydraulic device to move the piston 300 in an axial direction of the piston 300, thereby achieving an effect that the piston 300 is movably mounted to the caliper body 200.

And the caliper 1000 further has a friction pad, a mounting bracket mounted to the caliper body 200, a friction pad mounted to the mounting bracket, and a brake disc adapted to be mounted and fixed to a wheel of a vehicle, the over-control piston 300 being moved relative to the caliper body 200 in an axial direction of the piston 300 so that the piston 300 selectively drives the friction pad into contact with the brake disc, achieving effects of vehicle braking and vehicle braking release.

In the process of braking the vehicle, the hydraulic device pumps hydraulic oil into the hydraulic cylinder 202, the pressure in the hydraulic cylinder 202 is increased, so that the piston 300 moves towards the direction away from the hydraulic cylinder 202, and further, the piston 300 drives the friction pad to move towards the direction close to the brake disc, and the friction pad is in contact with the brake disc, so that the effect of braking the vehicle is achieved. In the process of releasing the brake of the vehicle, the pressure in the hydraulic cylinder 202 is reduced, the piston 300 moves towards the direction approaching the hydraulic cylinder 202, the gap between the piston 300 and the friction pad is released, the friction pad is impacted along with the rotation of the brake disc, the friction pad moves towards the direction far away from the brake disc, and the friction pad is spaced from the brake disc, so that the effect of releasing the brake of the vehicle is realized.

As shown in fig. 1 to 3, the piston dust cover 100 according to the embodiment of the present utility model includes a dust cover body 1 and a skeleton 2, as shown in fig. 1, the piston dust cover 100 may be configured as a ring structure, so that the dust cover body 1 is suitable for being installed between the brake caliper body 200 and the piston 300, and the dust cover body 1 is sleeved on the piston 300, and the function of the piston dust cover 100 is to protect the piston 300 from dust, fine particles, and the like entering a gap between the brake caliper body 200 and the piston 300 during operation, so as to avoid the situation that foreign matters enter the gap between the brake caliper body 200 and the piston 300 to cause the piston 300 to be blocked and unable to operate normally, thereby being beneficial to improving the operational reliability of the brake caliper 1000, reducing the failure rate of the brake caliper 1000, and prolonging the service life of the brake caliper 1000, and being beneficial to improving the running safety of a vehicle.

The framework 2 is disposed in the dust cover body 1, the dust cover body 1 can be made of a material which can be elastically deformed such as rubber, and the framework 2 can be made of a material which has a certain structural strength such as metal, for example: the materials such as iron, steel, aluminum, copper or alloy are beneficial to improving the structural strength of the dust cover body 1, and, as shown in fig. 3 and 4, at least part of the structure of the dust cover body 1 is elastically deformed under the action of the piston 300 in the braking process of the vehicle, wherein the acting force generated by the part of the deformation structure of the dust cover body 1 acts on the framework 2, so that the restoring force acting on the piston 300 is generated when the deformation of the dust cover body 1 is restored in the braking process of the vehicle, the force direction of the restoring force is from the piston 300 to the side of the hydraulic cylinder 202, and compared with the prior art, the effect of reducing the dragging moment in the restoring process of the piston 300 is achieved, so that the restoring quantity of the piston 300 is increased under the auxiliary action of the piston dust cover 100, the piston 300 can be quickly restored, the risk of contact between a friction pad and a brake disc is reduced when the vehicle releases the braking, and the working reliability of the brake caliper 1000 is improved.

Therefore, according to the piston dust cover 100 of the embodiment of the utility model, the piston dust cover 100 can avoid the situation that foreign matters enter the gap between the brake caliper body 200 and the piston 300 to cause the piston 300 to be blocked and not to work normally, thereby being beneficial to improving the working reliability of the brake caliper 1000, reducing the failure rate of the brake caliper 1000, prolonging the service life of the brake caliper 1000 and further being beneficial to improving the running safety of a vehicle.

And, through being equipped with skeleton 2 in dust cover body 1, be favorable to promoting the structural strength of dust cover body 1, and the dust cover body 1 produces the restoring force that acts on piston 300 when warp and resume to make piston 300 under the auxiliary action of piston dust cover 100, be favorable to piston 300 to reach maximum return volume, so that piston 300 can reset rapidly, and then reduce the risk that friction pad and brake disc contacted when the vehicle releases the braking, promote the operational reliability of brake caliper 1000.

In some embodiments of the present utility model, as shown in fig. 3 and 4, the dust cover body 1 has a first main body portion 1a, and the skeleton 2 is disposed in the first main body portion 1a, so as to facilitate the improvement of the structural strength of the first main body portion 1a, so that when the first main body portion 1a is deformed and recovered, the first main body portion 1a generates a restoring force to make the piston 300 face a direction approaching to the hydraulic cylinder 202, so that the drag torque of the vehicle during the process of releasing the brake is reduced, the return amount of the piston 300 is increased, the effect of achieving the maximum return amount of the piston 300 is facilitated, the effect of enabling the piston 300 to quickly return is facilitated, the risk of the friction pad contacting the brake disc is reduced when the vehicle releases the brake, and the working reliability of the brake caliper 1000 is improved.

The piston 300 is sleeved with the first main body portion 1a, the outer peripheral wall of the first main body portion 1a is suitable for being in interference fit with the brake caliper body 200, the inner peripheral wall of the first main body portion 1a is suitable for being in interference fit with the piston 300, and in the process that the piston 300 moves along the axial direction of the piston 300 towards the direction close to the hydraulic cylinder 202, the first main body portion 1a elastically deforms to generate a restoring force, and the restoring force acts on the piston 300, so that dragging moment in the returning process of the piston 300 is reduced, and the effect that the piston 300 is quickly reset under the auxiliary action of the piston dust cover 100 is achieved.

In addition, during the long-term use process of the brake caliper 1000, the piston 300 reciprocates for many times relative to the brake caliper body 200 along the axial direction of the piston 300, so that the braking and releasing effects of the brake caliper 1000 are realized, the first main body part 1a is in interference fit with the brake caliper body 200 and the piston 300, so that the first main body part 1a is reliably arranged between the piston 300 and the brake caliper body 200, the effect that the piston dust cover 100 is reliably arranged between the piston 300 and the brake caliper body 200 is realized, the risk that the piston dust cover 100 is separated from the brake caliper body 200 is reduced, the working reliability of the brake caliper 1000 is improved, the failure rate of the brake caliper 1000 is reduced, the service life of the brake caliper 1000 is prolonged, and the running safety of a vehicle is further improved. As shown in fig. 4, the H region shown in fig. 4 is a deformed region of the first body portion 1a when the piston 300 moves in a direction away from the hydraulic cylinder 202.

In some embodiments of the present utility model, as shown in fig. 1 and 3, the dust cover body 1 further has a second main body portion 1b connected to the first main body portion 1a, the second main body portion 1b is sleeved on the piston 300, an installation groove 30 is formed on an outer peripheral wall of the piston 300, and at least a portion of the second main body portion 1b is located in the installation groove 30, so that during the reciprocating movement of the piston 300, a part of the structure of the second main body portion 1b is elastically deformed, thereby ensuring that the piston dust cover 100 reliably seals a gap between the piston 300 and the caliper body 200, so as to avoid a situation that foreign matters enter the gap between the caliper body 200 and the piston 300 to cause the piston 300 to be blocked and not to work normally, which is beneficial to improving the working reliability of the caliper 1000 and reducing the failure rate of the caliper 1000.

In some embodiments, as shown in fig. 3 and 4, the second main body 1b has a deformation section 11 and a fixing block 12, the fixing block 12 is connected with the deformation section 11, and the fixing block 12 is installed in the installation groove 30, when the piston 300 moves, the piston 300 drives the fixing block 12 to move, so that the deformation section 11 is elastically deformed, so that the piston dust cover 100 reliably seals a gap between the piston 300 and the brake caliper body 200, foreign matters are prevented from entering the gap between the brake caliper body 200 and the piston 300, which is beneficial to improving the working reliability of the brake caliper 1000 and reducing the failure rate of the brake caliper 1000.

In some embodiments of the present utility model, as shown in fig. 3 and 4, the skeleton 2 may include a first support section 21 and a second support section 22 connected, where the first support section 21 is parallel to the axial direction of the dust cover body 1 and is disposed near the outer circumferential wall of the first main body portion 1a along the radial direction of the dust cover body 1, so as to facilitate the improvement of the structural strength of the first main body portion 1a, and facilitate the interference fit of the outer circumferential wall of the first main body portion 1a with the caliper body 200, reducing the deformation amount of the outer circumferential wall of the first main body portion 1a, and thus facilitate the reduction of the risk of the piston dust cover 100 being detached from the caliper body 200.

As shown in fig. 3 and fig. 4, an included angle is formed between the second support section 22 and the first support section 21, and the second support section 22 extends towards the inner peripheral wall of the first main body portion 1a along the radial direction of the dust cover body 1, as shown in fig. 3, in the process that the piston 300 moves away from the hydraulic cylinder 202, part of the structure of the first main body portion 1a is elastically deformed, and the second support section 22 is arranged in the first main body portion 1a, so that the second support section 22 reliably supports the deformation area of the first main body portion 1a, a restoring force is generated when the deformation of the first main body portion 1a is restored, a dragging moment in the restoring process of the piston 300 is reduced, and an effect that the piston 300 is quickly restored under the auxiliary action of the piston dust cover 100 is achieved.

In some embodiments, as shown in fig. 3, the cross section of the skeleton 2 may be similar to a "7" structure, so as to meet the requirements that the first support section 21 is parallel to the axial direction of the dust cover body 1, the first support section 21 is close to the peripheral wall of the first main body portion 1a, and the second support section 22 extends along the radial direction of the dust cover body 1, so that the peripheral wall of the first main body portion 1a is reliably in interference fit with the brake caliper body 200, the deformation amount of the peripheral wall of the first main body portion 1a is reduced, the risk that the piston dust cover 100 is separated from the brake caliper body 200 is further reduced, meanwhile, the second support section 22 can reliably support the deformation area of the first main body portion 1a, so that a restoring force is generated when the deformation of the first main body portion 1a is restored, the dragging moment in the restoring process of the piston 300 is reduced, and the effect that the piston 300 is quickly restored under the auxiliary action of the piston dust cover 100 is achieved.

In other embodiments, the cross section of the skeleton 2 may also be similar to a "T" -shaped structure, so as to meet the requirements that the first support section 21 is parallel to the axial direction of the dust cover body 1, that the first support section 21 is disposed close to the outer peripheral wall of the first main body portion 1a, and that the second support section 22 extends in the radial direction of the dust cover body 1.

In some embodiments of the present utility model, as shown in fig. 3 and 4, the first support section 21 and the second support section 22 are integrally formed, so that the structural strength of the connection between the first support section 21 and the second support section 22 is improved, the risk of fracture and separation of the first support section 21 and the second support section 22 is reduced, the effect of improving the structural strength of the skeleton 2 is achieved, and the reliability of the piston dust cover 100 is improved.

In some embodiments, the skeleton 2 may be produced by stamping, casting or forging, so as to achieve the effect that the first support section 21 and the second support section 22 are integrally formed, and in some embodiments, the skeleton 2 is formed by stamping, so as to be beneficial to reducing the production cost of the skeleton 2 under the condition that the first support section 21 and the second support section 22 are integrally formed, thereby achieving the effect of reducing the cost of the piston dust cover 100.

In some embodiments of the present utility model, as shown in fig. 1 and 2, the skeleton 2 may be configured as an annular structure, so that the skeleton 2 is suitable for being disposed inside the dust cover body 1, and because the skeleton 2 is an integral annular structure, it is beneficial to improve the overall structural strength of the skeleton 2, to improve the structural strength of the first main body portion 1a, so that the first main body portion 1a is in reliable interference fit with the brake caliper body 200 and the piston 300, and to generate a restoring force with respect to the first main body portion 1a, so that the piston 300 can be quickly restored, and an effect of increasing the restoring amount of the piston 300 is achieved.

In some embodiments of the present utility model, the skeleton 2 may include a plurality of sub-skeletons 2, where the plurality of sub-skeletons 2 are all disposed in the dust cover body 1, and the plurality of sub-skeletons 2 are sequentially arranged along the circumferential direction of the dust cover body 1, so that the plurality of sub-skeletons 2 are arranged in a ring form, and two adjacent sub-skeletons 2 are connected or spaced apart. In some embodiments, the two adjacent sub-skeletons 2 are arranged at intervals, so that the mass of the skeletons 2 is reduced, and the effect of lightweight design of the piston dust cover 100 is achieved.

In some embodiments of the present utility model, as shown in fig. 1 to 3, the outer peripheral wall of the first main body portion 1a is formed with a first limiting portion 10, the brake caliper body 200 is formed with a second limiting portion 201 in limiting engagement with the first limiting portion 10, and the first main body portion 1a is reliably mounted between the brake caliper body 200 and the piston 300 through the limiting engagement of the first limiting portion 10 and the second limiting portion 201, so that the effect that the piston dust cover 100 is reliably mounted between the piston 300 and the brake caliper body 200 is achieved, which is beneficial to reducing the risk that the piston dust cover 100 is separated from the brake caliper body 200.

In some embodiments of the present utility model, the first limiting portion 10 is one of the limiting boss 31 and the limiting groove 32, and the second limiting portion 201 is the other of the limiting boss 31 and the limiting groove 32, and it may also be understood that when the first limiting portion 10 is the limiting boss 31, the second limiting portion 201 is the limiting groove 32, and when the first limiting portion 10 is the limiting groove 32, the second limiting portion 201 is the limiting boss 31, and the limiting boss 31 is mounted in the limiting groove 32, so as to achieve the effect of limiting cooperation of the first limiting portion 10 and the second limiting portion 201. As shown in fig. 1 to 3, in some embodiments of the present utility model, the first limiting portion 10 is taken as a limiting boss 31, and the second limiting portion 201 is taken as a limiting groove 32 for illustration, so as to achieve the effect of limiting the first main body portion 1a and the brake caliper body 200.

In some embodiments of the present utility model, as shown in fig. 1 and 3, the limit boss 31 may be configured as an integral annular boss, and the limit boss 31 protrudes from the outer circumferential wall of the first body portion 1a along the circumferential direction of the first body portion 1a, and the limit groove 32 is configured as an integral annular groove correspondingly matched with the limit boss 31, so that when the piston dust cover 100 is installed between the piston 300 and the caliper body 200, the limit boss 31 is suitable for being installed in the limit groove 32, thereby achieving the effect of limit matching of the first limit portion 10 and the second limit portion 201.

In some embodiments of the present utility model, a plurality of limiting bosses 31 are formed on the outer peripheral wall of the first body portion 1a, and the plurality of limiting bosses 31 are arranged along the circumferential direction of the first body portion 1a, so that the plurality of limiting bosses 31 are arranged in an annular form, wherein two adjacent limiting bosses 31 are connected or spaced, and the brake caliper body 200 is formed with a plurality of limiting grooves 32, and the plurality of limiting grooves 32 are in one-to-one correspondence with the limiting bosses 31, so that the plurality of limiting bosses 31 are adapted to be respectively installed in the plurality of limiting grooves 32, thereby achieving the effect of limiting cooperation of the first limiting portion 10 and the second limiting portion 201.

As shown in fig. 2, the brake caliper 1000 according to the embodiment of the utility model includes a brake caliper body 200, a piston 300 and a piston dust cover 100, the piston 300 is movably mounted on the brake caliper body 200, and the piston dust cover 100 is mounted between the brake caliper body 200 and the piston 300 and is sleeved on the piston 300, so that the situation that foreign matters enter a gap between the brake caliper body 200 and the piston 300 to cause the piston 300 to be blocked and unable to work normally is avoided, which is beneficial to improving the working reliability of the brake caliper 1000, reducing the failure rate of the brake caliper 1000, prolonging the service life of the brake caliper 1000, and further improving the running safety of a vehicle. Wherein the piston dust cap 100 is the piston dust cap 100 for the brake caliper 1000 of the above-described embodiment.

Therefore, with the brake caliper 1000 of the piston dust cover 100 according to the embodiment of the present utility model, during the return process of the piston 300, the dust cover body 1 generates a restoring force acting on the piston 300, so that the piston 300 is beneficial to achieving the effect of achieving the maximum return amount of the piston 300 during the brake release process of the vehicle under the auxiliary action of the piston dust cover 100, and achieving the effect of rapidly returning the piston 300, thereby reducing the risk of contact between the friction pads and the brake disc during the brake release process of the vehicle, and improving the working reliability of the brake caliper 1000.

In some embodiments of the present utility model, as shown in fig. 2, the brake caliper 1000 may further include a seal ring 400, the seal ring 400 being disposed between the piston 300 and the brake caliper body 200. Specifically, as shown in fig. 3, the inner peripheral wall of the hydraulic cylinder 202 is formed with a seal groove 33, the seal groove 33 is configured in a ring shape, and the seal groove 33 is provided extending in the circumferential direction of the hydraulic cylinder 202, a seal ring 400 is adapted to be installed in the seal groove 33, and when the piston 300 is installed in the hydraulic cylinder 202, the seal ring 400 is fitted over the piston 300 such that the seal ring 400 is located between the piston 300 and the caliper body 200 in the radial direction of the hydraulic cylinder 202, and the seal ring 400 is used to seal a gap between the piston 300 and the caliper body 200, thereby reducing the risk of leakage of hydraulic oil located in the hydraulic cylinder 202 from the gap between the piston 300 and the caliper body 200.

In some embodiments, the seal ring 400 is made of an elastic material, so that the seal ring 400 can be elastically deformed, and in the process of resetting the piston 300, the elastic deformation is performed by the seal ring 400, so that a restoring force acting on the piston 300 is generated when the deformation of the seal ring 400 is recovered, and the piston 300 is under the auxiliary action of the seal ring 400, so that the resetting amount of the piston 300 is increased, the risk that a friction pad contacts with a brake disc when the vehicle releases the brake is reduced, and the working reliability of the brake caliper 1000 is improved. In some embodiments, during the braking of the vehicle, the restoring force generated by the piston dust cover 100 and the restoring force generated by the seal ring 400 act on the piston 300 together, so that the piston 300 moves towards the direction approaching the hydraulic cylinder 202, and the gap between the piston 300 and the friction pad is released, and the friction pad is impacted by the rotation of the brake disc, so that the friction pad moves towards the direction away from the brake disc, and the friction pad is separated from the brake disc, thereby achieving the braking releasing effect of the vehicle.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., 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 utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. A piston dust cover for a brake caliper having a caliper body and a piston movably mounted to the caliper body, the piston dust cover comprising:

the dustproof cover body is suitable for being arranged between the brake caliper body and the piston, and is sleeved on the piston;

and the framework is arranged in the dust cover body.

2. The piston dust cover for a brake caliper according to claim 1, wherein the dust cover body has a first main body portion, the skeleton is provided in the first main body portion, the first main body portion is sleeved on the piston, an outer peripheral wall of the first main body portion is adapted to be in interference fit with the brake caliper body, and an inner peripheral wall of the first main body portion is adapted to be in interference fit with the piston.

3. The piston dust cover for a brake caliper according to claim 2, wherein the dust cover body further has a second main body portion connected to the first main body portion, the second main body portion is sleeved on the piston, a mounting groove is formed in an outer peripheral wall of the piston, and at least a part of the second main body portion is located in the mounting groove.

4. The piston dust cover for a brake caliper according to claim 2, wherein the backbone includes a first support section and a second support section connected, the first support section being parallel to an axial direction of the dust cover body, and the first support section being disposed adjacent to an outer peripheral wall of the first main body portion, the second support section forming an angle with the first support section and extending toward an inner peripheral wall of the first main body portion.

5. The piston dust cap for a brake caliper of claim 4, wherein the first support section and the second support section are an integral piece.

6. A piston dust cap for a brake caliper according to any one of claims 1 to 5, wherein the skeleton is configured in a ring-like structure.

7. A piston dust cap for a brake caliper according to any one of claims 1 to 5, wherein the skeleton includes a plurality of sub-skeletons, the plurality of sub-skeletons being arranged in order along a circumferential direction of the dust cap body.

8. A piston dust cap for a brake caliper according to any one of claims 2 to 5, wherein a first stopper portion is formed on an outer peripheral wall of the first main body portion, and the brake caliper body is formed with a second stopper portion which is in stopper engagement with the first stopper portion.

9. The piston dust cap for a brake caliper of claim 8, wherein the first limit portion is one of a limit boss and a limit groove, the second limit portion is the other of the limit boss and the limit groove, and the limit boss is installed in the limit groove.

10. A brake caliper, comprising:

the brake caliper comprises a brake caliper body and a piston, wherein the piston is movably arranged on the brake caliper body;

a piston dust cover mounted between the brake caliper body and the piston and sleeved on the piston, the piston dust cover being a piston dust cover for a brake caliper according to any one of claims 1 to 9.