Fixed calipers and vehicles

Abstract

The utility model discloses a fixed calipers and vehicle, include: the body of pincers, two brake blocks and return spring, two brake blocks are opposite setting, and can be opposite the body of pincers movement, make the fixed calipers be configured as brake or unbrake, return spring has two first bending parts and the connecting portion for connecting two first bending parts, two first bending parts all protrude in the first direction, and both and the connecting portion opposite end one to one correspond and insert to two brake blocks, to make the first bending part generate the first return force of support the brake block, the connecting portion protrude in the second direction perpendicular to the first direction, and fix in the body of pincers, the first bending part inserts to the one end in the brake block and is located in the middle part of this brake block, or is located in the downside of this brake block middle part. The utility model solves the technical problem of traditional sheet spring structure complex, and easy to cause the technical problem of insufficient or uneven return force.

Description

Technical Field

[0001] This utility model relates to the field of caliper technology, specifically to fixed calipers and vehicles. Background Technology

[0002] In braking systems, leaf springs are used to quickly return the brake pads to their original position after brake release, preventing drag and wear. However, traditional leaf springs have a complex structure and are often installed too high (above the brake pads), resulting in insufficient or uneven return force. This prevents the brake pads from fully returning to their original position, leading to brake disc wear and increased energy consumption. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a fixed caliper and vehicle to solve the technical problems of the complex structure of traditional plate springs and the tendency to cause insufficient or uneven return force.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A fixed caliper includes: a caliper body and two brake blocks, the two brake blocks being arranged opposite to each other and movable relative to the caliper body, thereby configuring the fixed caliper to brake or release the brake.

[0006] The fixed caliper also includes:

[0007] A return spring has two first curved portions and a connecting portion for connecting the two first curved portions. Both first curved portions protrude in a first direction, and their ends opposite to the connecting portion are inserted into two brake blocks to generate a first return force supporting the brake blocks. The connecting portion protrudes in a second direction perpendicular to the first direction and is fixed to the clamp body.

[0008] Wherein, one end of the first curved portion inserted into the brake block is located in the middle of the brake block, or is located on the lower side of the middle of the brake block.

[0009] Furthermore, the distance between the protruding portions of the two first bends is L1, and the distance between the protruding portions of the first bends from the end into the brake block is L2, satisfying: L2 > L1.

[0010] Furthermore, the first curved portion has a bending angle α, which satisfies: 80°≤α≤90°.

[0011] Furthermore, the first curved portion is inserted into the brake block at an angle.

[0012] Furthermore, the brake block is provided with an inclined slot to accommodate the first curved portion.

[0013] Furthermore, the end of the slot extends to the end face of the brake block, and a chamfered structure is provided at the connection between the two.

[0014] Furthermore, the first curved portion and the connecting portion are connected by a second curved portion.

[0015] Furthermore, the second curved portion protrudes in the opposite direction to the first direction to generate a second return force supporting the brake block, wherein the first return force and the second return force are arranged in the same direction.

[0016] Furthermore, the protruding portion of the connecting part is fixed to the clamp body by screws.

[0017] Vehicles, including the aforementioned fixed calipers.

[0018] Compared with the prior art, this utility model has the following advantages: the two first curved parts of the return spring are connected by a connecting part, which simplifies the structure and improves its stability and reliability; furthermore, by placing the point of action of the return spring in the middle or lower part of the brake block, the lever arm of the force is improved, so that the return spring can return the brake block completely with a more efficient and uniform torque, reducing abnormal wear of the brake disc and extending its service life; at the same time, the point of action of the return spring is located in the main body area of ​​the brake block, which can provide a more uniform and direct return force, avoiding the brake block from tilting or jamming during the return process, and ensuring that the brake blocks on both sides can be smoothly and uniformly disengaged after each release of the brake. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of a fixed caliper according to an embodiment of the present invention;

[0020] Figure 2 This is a schematic diagram of the fixed caliper according to an embodiment of the present invention, omitting the caliper body;

[0021] Figure 3 for Figure 2 Partial diagram of the explosion;

[0022] Figure 4 This is a schematic diagram of the structure of a return spring according to an embodiment of the present invention;

[0023] Figure 5 This is a schematic diagram of the structure of a return spring according to an embodiment of the present invention.

[0024] Figure 6 This is a schematic diagram of the slot structure according to an embodiment of the present invention.

[0025] The reference numerals in the accompanying drawings include:

[0026] 1. Clamp body;

[0027] 2. Brake block; 201. Slot; 202. Chamfered structure;

[0028] 3. Return spring; 301. First bent portion; 302. Connecting portion; 303. Second bent portion;

[0029] 4. Screws. Detailed Implementation

[0030] The present invention will be further described in detail below through specific embodiments:

[0031] In the embodiments of this utility model, such as Figures 1-4 As shown, the fixed caliper includes: a caliper body 1, two brake blocks 2, and a return spring 3. The two brake blocks 2 are arranged opposite to each other and can move relative to the caliper body 1, so that the fixed caliper is configured to brake or release the brake. The return spring 3 has two first curved portions 301 and a connecting portion 302 for connecting the two first curved portions 301. Both first curved portions 301 protrude in a first direction, and the ends of both that are opposite to the connecting portion 302 are inserted into the two brake blocks 2, so that the first curved portions 301 generate a first return force to support the brake blocks 2. The connecting portion 302 protrudes in a second direction perpendicular to the first direction and is fixed to the caliper body 1.

[0032] Wherein, one end of the first curved portion 301 inserted into the brake block 2 is located in the middle of the brake block 2, or is located on the lower side of the middle of the brake block 2.

[0033] Specifically, in this embodiment of the invention, two brake blocks 2 are arranged opposite to each other and are movably connected to the clamp body 1, so that the two brake blocks 2 can move relative to the clamp body 1 to have a braking mode and a braking release mode. The above is prior art and will not be described in detail here.

[0034] In this embodiment of the invention, the two brake blocks 2 are connected by return springs 3 to return to their original positions. To ensure balanced force on the brake blocks 2, two return springs 3 are symmetrically arranged, located at two symmetrical points on the two brake blocks 2. To further provide a more uniform rebound force to the two brake blocks 2, ensuring complete return, the return springs 3 include two first bending portions 301 and a connecting portion 302.

[0035] Specifically, the two first curved portions 301 are symmetrically arranged relative to the connecting portion 302, and the two are connected by the connecting portion 302. Furthermore, each first curved portion 301 protrudes in a first direction to form a protruding part of the first curved portion 301, which can deform under external force. Additionally, to provide a more uniform return force, the end of the first curved portion 301 facing away from the connecting portion 302 is inserted into the middle or lower middle part of the brake block 2 on the same side. Thus, by placing the point of action of the return spring 3 in the middle or lower middle part of the brake block 2, the lever arm of the force is optimized compared to a conventional leaf spring, allowing the return spring 3 to return the brake block 2 with a more stable and efficient torque. This ensures that the two brake blocks 2 can return quickly, synchronously, and completely, eliminating abnormal wear caused by incomplete return. At the same time, the point of action of the return spring 3 is located in the main body area of ​​the brake block 2, providing a more uniform and direct return force and preventing the brake block 2 from tilting or jamming during the return process. Of course, the complete return of brake block 2 can also prevent the caliper from overheating.

[0036] In this embodiment, the return spring 3 is divided into two first curved parts 301, and the two first curved parts 301 are connected by a connecting part 302. The first curved parts 301 can be inserted into the middle or lower middle part of the brake block 2, so that the return spring 3 is not only simple in structure, but also can provide a more uniform return force to the brake block 2.

[0037] like Figure 5 As shown, in one embodiment, the distance between the protruding portions of the two first curved portions 301 is L1, and the distance between the protruding portions of the first curved portions 301 from their ends inserted into the brake block 2 is L2, satisfying: L2 > L1. Specifically, the longitudinal depth of a single first curved portion 301 is greater than the lateral span between the two first curved portions 301; this ensures that the deformation and force output of the return spring 3 are linear and controllable when under force, avoiding excessively strong initial return force or excessively rapid attenuation at the end. Simultaneously, it ensures that after the brake block 2 is pushed out, the return spring 3 can store sufficient energy and provide a sufficient and smooth return force stroke upon release.

[0038] Furthermore, the smaller size of L1 allows the protruding portions of the two first bends 301 to be closer together, resulting in a more compact overall lateral dimension of the return spring 3; simultaneously, the larger size of L2 allows the first bends 301 to extend sufficiently deep into the middle or lower part of the brake block 2, ensuring that the end point of action of the return spring 3 is located in the middle or lower part of the brake block 2 for optimal lever arm. This also ensures the stability and reliability of the return spring 3.

[0039] like Figure 5As shown, in one embodiment, the first bent portion 301 has a bending angle α, satisfying: 80°≤α≤90°. Specifically, by constraining the bending angle of the first bent portion 301, it is ensured that after installation, the return force applied by the return spring 3 to the brake block 2 is mainly along the return direction of the brake block 2, reducing the loss of force component and allowing the elastic force of the return spring 3 to be quickly converted into the return action of the brake block 2, thereby improving the force transmission efficiency. In addition, at this bending angle, the overall stability of the brake block 2 during operation can be improved, reducing abnormal noise and wear.

[0040] To prevent the return spring 3 from disengaging from the brake block 2, in this embodiment, the first bent portion 301 is inserted into the brake block 2 at an angle. Furthermore, the lateral constraint provided by the angled insertion prevents the brake block 2 from tilting during pushing or returning. Preferably, as shown... Figure 6 As shown, the brake block 2 is provided with an inclined slot 201 to accommodate the first bent portion 301. Preferably, for ease of assembly, the end of the slot 201 extends to the end face of the brake block 2, and a chamfered structure 202 is provided at the connection between the two. Specifically, the chamfered structure 202 forms a smooth transition slope from the end face to the slot 201. When installing the return spring 3, this slope can guide the return spring 3 into the slot 201 without the need for repeated adjustments by the worker. At the same time, this slope can also prevent damage during the assembly process.

[0041] For example, 1- Figure 4 As shown, in one embodiment, the first bent portion 301 and the connecting portion 302 are connected by a second bent portion 303. Specifically, when the first bent portion 301 and the connecting portion 302 are connected at a right angle or a small angle, a region of high stress concentration will be formed at the connection point, which is prone to fatigue cracks or fracture during repeated force cycles of the return spring 3. Therefore, in this embodiment, a second bent portion 303 is provided between the two, so that the second bent portion 303 acts as a smooth transition, making the force transmission path smoother and improving the fatigue resistance of the return spring 3.

[0042] Furthermore, the second curved portion 303 protrudes in the opposite direction to the first direction, so that the second curved portion 303 generates a second return force to support the brake block 2. The first return force and the second return force are arranged in the same direction. In this way, the second curved portion 303 itself forms a flexible elastic region, so that the first curved portion 301 and the second curved portion 303 form a series elastic unit. During braking, they are compressed and stored simultaneously, and after the braking is released, the elastic potential energy stored in both is released simultaneously. The resulting return is superimposed along the same direction to prevent the brake block 2 from dragging.

[0043] like Figure 1As shown, to prevent the return spring 3 from detaching from the brake block 2, in this embodiment, the protruding portion of the connecting part 302 is fixed to the clamp body 1 by a screw 4. During assembly, only one screw 4 is needed to install the return spring 3 in the corresponding position, improving its assembly efficiency.

[0044] This embodiment also provides a vehicle, including the fixed caliper described above. The specific structure of the caliper is as described in the above embodiment. Since this vehicle adopts all the technical solutions of the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. Fixed calipers, including: The caliper has a caliper body and two brake blocks, which are arranged opposite to each other and can move relative to the caliper body, so that the fixed caliper is configured to brake or release the brake. Its features are, The fixed caliper also includes: A return spring has two first curved portions and a connecting portion for connecting the two first curved portions. Both first curved portions protrude in a first direction, and their ends opposite to the connecting portion are inserted into two brake blocks to generate a first return force supporting the brake blocks. The connecting portion protrudes in a second direction perpendicular to the first direction and is fixed to the clamp body. Wherein, one end of the first curved portion inserted into the brake block is located in the middle of the brake block, or is located on the lower side of the middle of the brake block.

2. The fixed caliper as described in claim 1, characterized in that, The distance between the protruding portions of the two first bends is L1, and the distance between the protruding portions of the first bends from the end into the brake block is L2, satisfying: L2 > L1.

3. The fixed caliper as described in claim 1, characterized in that, The first curved portion has a bending angle α, which satisfies: 80°≤α≤90°.

4. The fixed caliper as described in any one of claims 1-3, characterized in that, The first curved portion is inserted into the brake block at an angle.

5. The fixed caliper as described in claim 4, characterized in that, The brake block is provided with an inclined slot to accommodate the first curved portion.

6. The fixed caliper as described in claim 5, characterized in that, The end of the slot extends to the end face of the brake block, and a chamfered structure is provided at the connection between the two.

7. The fixed caliper as described in claim 1, characterized in that, The first curved portion is connected to the connecting portion via a second curved portion.

8. The fixed caliper as described in claim 7, characterized in that, The second curved portion protrudes in the opposite direction to the first direction to generate a second return force supporting the brake block, wherein the first return force and the second return force are arranged in the same direction.

9. The fixed caliper as described in claim 1, characterized in that, The protruding part of the connecting part is fixed to the clamp body by screws.

10. A vehicle, characterized in that, include: The fixed caliper as described in any one of claims 1-9.

Images