Elastic element for a brake and brake

Abstract

The application discloses a spring of a brake and the brake, and the spring of the brake comprises a main body, a plurality of brake pad return portions connected to two sides of the main body respectively, and brake pad return surfaces provided on the brake pad return portions and bent relative to the main body to provide return force for external brake pads. The brake pad return surfaces of the plurality of brake pad return portions can be in contact with the brake pads more conveniently, the brake pads can be provided with better return force, the brake pads can be returned better, the plurality of brake pad return portions are uniformly distributed on the two sides of the main body, the brake pads can be returned in parallel, the return efficiency of the brake pads is improved, and the brake pads are prevented from being dragged and from generating abnormal sound.

Description

Technical Field

[0001] This invention relates to the field of vehicle technology, and in particular to an elastic element for a brake and a brake itself. Background Technology

[0002] In existing technologies, the elastic component of the brake uses a split structure, with the main body and the limiting and returning parts of the brake pads being processed separately. However, this requires two sets of molds, and a subsequent riveting process is needed to join the two parts together, which increases the processing cost of the elastic component. Moreover, the brake pad returning part of the elastic component has one on each side, located on the centerline of the brake pads they contact. This means that when the brake pad returning part helps the brake pad return, there is a probability that the brake pad will not return in parallel, thus increasing the risk of abnormal noise, increased drag time, and increased torque.

[0003] In addition, if the elastic element concentrates the limiting and returning functions of the brake pad, it will cause the bearing force of the limiting and returning parts of the same brake pad to be highly concentrated when the brake pad is braking. This will cause the elastic force of the limiting and returning parts of the brake pad to decay too quickly, resulting in a shortened service life and making it prone to breakage. Summary of the Invention

[0004] The present invention aims to at least solve one of the technical problems existing in the prior art. To this end, the present invention proposes an elastic element for a brake, which can help the brake pad return to its original position and improve the return efficiency of the brake pad, avoiding situations such as brake pad dragging and abnormal noise.

[0005] The present invention further proposes a brake.

[0006] The elastic element for a brake according to the present invention includes: a main body; a plurality of brake pad return portions, the plurality of brake pad return portions being respectively connected to both sides of the main body, the brake pad return portions being bent relative to the main body and having brake pad return surfaces for providing return force to external brake pads.

[0007] According to the elastic element for a brake of the present invention, by providing multiple brake pad return portions, and the brake pad return portions being bent relative to the main body, the brake pad return surfaces of the multiple brake pad return portions can more easily come into contact with the brake pad, thereby providing better return force to the brake pad and thus helping the brake pad return. In addition, the multiple brake pad return portions are evenly distributed on both sides of the main body, so that during the return process of the brake pad, the parallel return of the brake pad can be controlled, improving the return efficiency of the brake pad and avoiding situations such as brake pad dragging and abnormal noise.

[0008] In some examples of the present invention, the brake pad return section includes: a first bending section and a return section, one end of the first bending section is connected to the main body and is bent, the return section is connected to the other end of the first bending section, and the return section is provided with the brake pad return surface.

[0009] In some examples of the present invention, the elastic element for the brake further includes: a plurality of brake pad limiting portions, which are respectively connected to both sides of the main body, and the brake pad return portion and the brake pad limiting portion are spaced apart on one side of the main body.

[0010] In some examples of the present invention, the brake pad limiting portion includes a second bending segment and a limiting segment, wherein the second bending segment is connected to one side of the main body and bent relative to the main body, and the limiting segment is connected to the second bending segment and bent relative to the second bending segment, for providing a limiting force for the external brake pad.

[0011] In some examples of the present invention, a plurality of brake pad return portions and a plurality of brake pad limiting portions are integrally formed on the main body.

[0012] In some examples of the present invention, at least two brake pad limiting portions and at least two brake pad returning portions are provided on one side of the main body, and the at least two brake pad limiting portions are located between the at least two brake pad returning portions.

[0013] In some examples of the present invention, the main body includes: a first straight section, a third bent section and a second straight section, the third bent section being arc-shaped and connected between the first straight section and the second straight section, and a plurality of brake pad limiting portions and a plurality of brake pad returning portions being connected to the lateral sides of the first straight section and the second straight section.

[0014] In some examples of the present invention, the elastic element for the brake further includes: a mounting shaft fixing part, which is respectively connected to the longitudinal ends of the main body.

[0015] In some examples of the present invention, the mounting shaft fixing part forms a limiting groove, and a ratchet is provided at one end of the mounting shaft fixing part away from the main body. The ratchet extends into the opening of the limiting groove and is bent to form a C-shaped space with the limiting groove.

[0016] According to the present invention, a brake includes: a caliper body; a piston disposed in the caliper body; a brake pad disposed in the caliper body and drivingly engaging with the piston; and the elastic element for the brake described above, wherein when the brake is in a braking state, the brake pad return portion abuts against the brake pad.

[0017] Additional aspects and advantages of the invention 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 invention. Attached Figure Description

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0019] Figure 1 This is a structural schematic diagram of the elastic member at a first angle according to an embodiment of the present invention;

[0020] Figure 2 This is a structural schematic diagram of the second angle of the elastic member according to an embodiment of the present invention;

[0021] Figure 3 This is a partially enlarged view of the elastic element according to an embodiment of the present invention;

[0022] Figure 4 This is a schematic diagram of the installation of the elastic element and the latch assembly;

[0023] Figure 5 This is a schematic diagram of the contact between the elastic element and the brake pad;

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

[0025] Figure label:

[0026] Elastic component 1;

[0027] Main body 10; First straight section 11; Third bending section 12; Second straight section 13;

[0028] Brake pad limiting part 20; Brake pad limiting surface 21; Second bending section 22; Limiting section 23;

[0029] Brake pad return section 30; Brake pad return surface 31; First bending section 32; Return section 33;

[0030] Mounting shaft fixing part 40; limiting groove 41; ratchet 42; brake 2;

[0031] Clamp body 50; piston 60; brake pad 70; upper end face 71; inner end face 72; pin assembly 80. Detailed Implementation

[0032] The embodiments of the present invention are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. The embodiments of the present invention are described in detail below.

[0033] The following is for reference. Figures 1-6The elastic member 1 for a brake 2 according to an embodiment of the present invention is described. The brake 2 includes a brake pad 70 and an elastic member 1, wherein the elastic member 1 abuts against the brake pad 70.

[0034] like Figure 1 and Figure 2 As shown, the elastic element 1 of the brake 2 according to an embodiment of the present invention includes: a main body 10 and a brake pad return portion 30. The main body 10 serves as the main body connection of the elastic element 1, thereby forming the main body structure of the elastic element 1. The brake pad return portion 30 abuts against the brake pad 70, and the brake pad return portion 30 mainly provides a return force to the brake pad 70, so that the brake pad 70 can return to its normal position after braking.

[0035] like Figure 1 , Figure 2 and Figure 5 As shown, when the brake pad 70 is not braking, the brake pad return portion 30 abuts against the brake pad 70, which reduces vibration and abnormal noise of the brake pad 70. When the brake pad 70 is braking, the brake pad 70 moves towards one end of the brake pad return portion 30, and the elastic force between the brake pad return portion 30 and the brake pad 70 increases, which also increases the return force of the brake pad return portion 30 on the brake pad 70, helping the brake pad 70 to return to its original position. There are multiple brake pad return portions 30, which are respectively connected to both sides of the main body 10. This facilitates the arrangement of the elastic element 1, making it easier for multiple brake pad return portions 30 to abut against the brake pad 70. Moreover, the multiple brake pad return portions 30 are evenly distributed on both sides of the main body 10, so that during the return process of the brake pad 70, the parallel return of the brake pad 70 can be controlled, improving the return efficiency of the brake pad 70 and avoiding dragging and abnormal noise of the brake pad 70.

[0036] In addition, the brake pad return portion 30 is bent relative to the main body 10, which allows the brake pad return portion 30 to better contact the brake pad 70. Moreover, the brake pad return portion 30 is provided with a brake pad return surface 31, which abuts against the brake pad 70. Thus, during braking with the brake pad 70, the brake pad return portion 30 can provide a return force to the brake pad 70.

[0037] Among them, such as Figure 1 and Figure 2 As shown, the brake pad return section 30 includes a first bending section 32 and a return section 33. One end of the first bending section 32 is connected to the main body 10, and the first bending section 32 is bent relative to the main body 10. The return section 33 is connected to the other end of the first bending section 32, and the return section 33 is provided with a brake pad return surface 31.

[0038] One end of the first bent section 32 is connected to one side of the main body 10, and the first bent section 32 is bent relative to the main body 10. This allows the brake pad return portion 30 to be positioned closer to the brake pad 70, enabling the brake pad return portion 30 to abut against the brake pad 70. The return section 33 is connected to the other end of the first bent section 32, and the return section 33 is provided with a brake pad return surface 31. This allows the return section 33 to be angled so that the brake pad return surface 31 can better abut against the brake pad 70, and also avoids interference between the brake pad return portion 30 and the brake pad limiting portion 20. In addition, the return section 33 is curved, which increases the elasticity of the return section 33, thereby enabling the brake pad return portion 30 to provide sufficient return force.

[0039] In addition, such as Figure 1 and Figure 2 As shown, the elastic element 1 for the brake 2 further includes: multiple brake pad limiting portions 20, which are respectively connected to both sides of the main body 10. The brake pad return portion 30 and the brake pad limiting portions 20 located on one side of the main body 10 are spaced apart. The brake pad limiting portions 20 abut against the brake pad 70 and are subjected to the reaction force of the brake pad 70. There are multiple brake pad limiting portions 20, which are evenly distributed, meeting mechanical requirements. Each brake pad limiting portion 20 can be evenly stressed, effectively preventing breakage and increasing its lifespan. This also provides better limiting effect and reduces vibration of the brake pad 70. The multiple brake pad limiting portions 20 are respectively connected to both sides of the main body 10, facilitating the arrangement of the elastic element 1 and allowing the multiple brake pad limiting portions 20 to abut against the brake pad 70 more easily. Each brake pad limiting part 20 has a brake pad limiting surface 21 on one side, which abuts against the brake pad 70 to limit the brake pad 70. The brake pad return part 30 and the brake pad limiting part 20 are spaced apart on one side of the main body 10, so that the brake pad return part 30 and the brake pad limiting part 20 abut against the brake pad 70 respectively, avoiding interference between the brake pad return part 30 and the brake pad limiting part 20.

[0040] It should be noted that the brake pad limiting part 20 and the brake pad return part 30 are set separately. This can avoid the limiting and return functions of the elastic element 1 being concentrated, which would cause excessive force during the limiting and return process, resulting in the elastic force of the elastic element 1 decaying too quickly, shortening the service life of the elastic element 1, and making the elastic element 1 prone to breakage.

[0041] According to an optional embodiment of the present invention, such as Figure 1 and Figure 2As shown, the brake pad limiting portion 20 includes a second bending section 22 and a limiting section 23. The second bending section 22 is connected to one side of the main body 10 and is bent relative to the main body 10. The limiting section 23 is connected to the second bending section 22 and is bent relative to the second bending section 22, so as to provide a limiting force for the external brake pad 70.

[0042] The second bent segment 22 is connected to one side of the main body 10, and the second bent segment 22 is bent relative to the main body 10. This allows the brake pad limiting portion 20 to be positioned closer to the brake pad 70, thereby enabling the brake pad limiting portion 20 to abut against the brake pad 70. The limiting segment 23 is connected to the second bent segment 22, and the limiting segment 23 is bent relative to the second bent segment 22. This provides a limiting force to the external brake pad 70, preventing the brake pad 70 from shifting. Furthermore, while ensuring that the brake pad limiting surface 21 of the limiting segment 23 can abut against the brake pad 70, it also improves the connection strength between the limiting segment 23 and the second bent segment 22. In addition, the surface of the brake pad limiting surface 21 is parallel to the surface of the main body 10 and the surface of the side of the brake pad 70 that abuts against it. This better ensures the limiting effect of the brake pad limiting portion 20, preventing the brake pad 70 from shifting upwards.

[0043] Furthermore, such as Figure 1 and Figure 2 As shown, multiple brake pad return portions 30 and multiple brake pad limiting portions 20 are integrally formed on the main body 10. The multiple brake pad limiting portions 20 and multiple brake pad return portions 30 are all integrally formed with the main body 10. This makes the connection between the brake pad limiting portions 20 and the brake pad return portions 30 and the main body 10 more stable, avoiding stress concentration at the joint points of the brake pad limiting portions 20 and the brake pad return portions 30 and the main body 10, which could lead to problems such as breakage or deformation of the elastic element 1. Furthermore, the integral formation of the multiple brake pad limiting portions 20 and the multiple brake pad return portions 30 with the main body 10 makes processing more convenient, reduces the need for processing molds, and thus reduces processing costs.

[0044] Optionally, such as Figure 1 and Figure 2As shown, at least two brake pad limiting portions 20 and at least two brake pad return portions 30 are correspondingly provided on one side of the main body 10, with the at least two brake pad limiting portions 20 located between the at least two brake pad return portions 30. The provision of at least two brake pad limiting portions 20 and at least two brake pad return portions 30 ensures that the brake pad limiting portions 20 are evenly stressed, preventing breakage and extending their lifespan. It also controls the parallel return of the brake pad 70 during its return process, improving the return efficiency and preventing dragging and abnormal noise. Since the return section 33 extends laterally outward, the brake pad return surface 31 on the outer side of the return section 33 better abuts against the brake pad 70. Positioning the at least two brake pad limiting portions 20 between the at least two brake pad return portions 30 prevents interference between them, allowing the elastic member 1 to function properly in both limiting and return functions.

[0045] Specifically, such as Figure 1 and Figure 2 As shown, the main body 10 includes: a first straight section 11, a third bent section 12, and a second straight section 13. The third bent section 12 is arc-shaped and connects the first straight section 11 and the second straight section 13. Multiple brake pad limiting portions 20 and multiple brake pad return portions 30 are respectively connected to the lateral sides of the first straight section 11 and the second straight section 13. The third bent section 12 connects the first straight section 11 and the second straight section 13, and the third bent section 12 is arc-shaped. This allows the third bent section 12 to provide longitudinal buffering and shock absorption for the entire elastic member 1, thereby improving the overall structural strength of the elastic member 1. The surfaces of the first straight section 11 and the second straight section 13 are flat, which makes it easy to connect the multiple brake pad limiting parts 20 and the multiple brake pad return parts 30 to the lateral sides of the first straight section 11 and the second straight section 13. Moreover, this makes it easy to install the elastic member 1 as a whole on the brake 2, so that the multiple brake pad limiting parts 20 and the multiple brake pad return parts 30 can better abut against the brake pad 70.

[0046] Of course, such as Figure 4 and Figure 6 As shown, the elastic element 1 of the brake 2 further includes a mounting shaft fixing part 40, which is connected to both ends of the main body 10. The mounting shaft fixing part 40 is provided at both ends of the main body 10. The mounting shaft fixing part 40 can be fixed to the pin assembly 80 of the brake 2, thus fixing the elastic element 1 to the brake 2. The elastic element 1 can limit and return the brake pad 70 of the brake 2, thereby ensuring that the brake pad 70 can work normally.

[0047] In addition, such as Figure 4 and Figure 6As shown, the mounting shaft fixing part 40 forms a limiting groove 41. A ratchet 42 is provided at the end of the mounting shaft fixing part 40 away from the main body 10. The ratchet 42 extends into the opening of the limiting groove 41 and is bent to form a C-shaped space with the limiting groove 41. The mounting shaft fixing part 40 forms a limiting groove 41, allowing the pin assembly 80 to engage within it. The ratchet 42 at the end of the mounting shaft fixing part 40 away from the main body 10 extends into the opening of the limiting groove 41, thus allowing the pin assembly 80 to be engaged within the limiting groove 41. The mounting shaft fixing part 40 is fixed to the pin assembly 80 by elastic force, thereby fixing the elastic element 1 to the brake 2. The bent ratchet 42 forms a C-shaped space with the limiting groove 41, providing a fixing force for the installation of the pin assembly 80, thus making the connection of the pin assembly 80 more stable.

[0048] It should be noted that the elastic element 1 in this case can be specifically modified to change the bending angle and surface area of ​​the brake pad return portion 30 according to actual needs, thereby providing a larger or smaller return force. For different models of brake pads 70, the arc angle of the third bending segment 12 can be adjusted according to the change of the brake pad 70 contour, and the arrangement angle of the brake pad limiting portion 20 can also be adaptively adjusted according to the change of the brake pad 70 contour, but the function and functional distribution of the elastic element 1 in this case will not differ significantly.

[0049] like Figure 6 As shown, the brake 2 according to an embodiment of the present invention includes: a caliper 50, a piston 60, a brake pad 70, and an elastic member 1 of the brake 2 described in the above embodiment. The piston 60 is disposed in the caliper 50, and the brake pad 70 is disposed in the caliper 50. Moreover, the brake pad 70 is in a transmission cooperation with the piston 60. When the brake 2 is in a braking state, the brake pad return portion 41 abuts against the brake pad 70.

[0050] In other words, when the elastic element 1 is fixed to the brake 2, the brake pad limiting surface 21 abuts against the upper end surface 71 of the brake pad 70, and the brake pad return surface 31 abuts against the inner end surface 72 of the brake pad 70. This reduces the vibration and noise of the brake pad 70. When the brake 2 is in the braking state, the piston 60 and the brake pad 70 are engaged in transmission. The piston 60 pushes the brake pad 70 in the direction of the elastic element 1 laterally inward. After pushing a certain distance, the brake pad 70 stops braking, the piston 60 stops pushing and returns to its original position. During the pushing process of the piston 60, the elastic force between the brake pad return part 30 and the brake pad 70 also increases. At the same time, this also increases the return force of the brake pad return part 30 on the brake pad 70. When the piston 60 stops pushing and returns to its original position, the return force of the brake pad return part 30 on the brake pad 70 helps the brake pad 70 return to its original position. Throughout the entire braking process, the brake pad limiting surface 21 always abuts against the upper end surface 71 of the brake pad 70, which can prevent the brake pad 70 from shifting upward during braking.

[0051] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0052] In the description of this invention, "first feature" and "second feature" may include one or more of the features. In the description of this invention, "a plurality of" means two or more. In the description of this invention, "above" or "below" the second feature may include direct contact between the first and second features, or it may include contact between the first and second features not being in direct contact but through another feature between them. In the description of this invention, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicating that the first feature is at a higher horizontal level than the second feature.

[0053] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0054] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An elastic element (1) for a brake (2), characterized in that, include: Main body (10); Multiple brake pad return sections (30) are respectively connected to both sides of the main body (10). Each brake pad return section (30) is bent relative to the main body (10) and is provided with a brake pad return surface (31) to provide return force for the external brake pad (70). Multiple brake pad limiting parts (20) are respectively connected to both sides of the main body (10), and the brake pad return part (30) and the brake pad limiting part (20) located on one side of the main body (10) are spaced apart; The main body (10) includes: a first straight section (11), a third bent section (12) and a second straight section (13). The third bent section (12) is arc-shaped and connected between the first straight section (11) and the second straight section (13). A plurality of brake pad return parts (30) are connected to the lateral sides of the first straight section (11) and the second straight section (13). Multiple brake pad return portions (30) and multiple brake pad limiting portions (20) are integrally formed on the main body (10).

2. The elastic element (1) for the brake (2) according to claim 1, characterized in that, The brake pad return section (30) includes a first bending section (32) and a return section (33). One end of the first bending section (32) is connected to the main body (10) and is bent. The return section (33) is connected to the other end of the first bending section (32). The return section (33) is provided with the brake pad return surface (31).

3. The elastic element (1) for the brake (2) according to claim 1, characterized in that, The brake pad limiting portion (20) includes a second bending section (22) and a limiting section (23). The second bending section (22) is connected to one side of the main body (10) and bent relative to the main body (10). The limiting section (23) is connected to the second bending section (22) and bent relative to the second bending section (22) to provide a limiting force for the external brake pad (70).

4. The elastic element (1) for the brake (2) according to claim 1, characterized in that, At least two brake pad limiting parts (20) and at least two brake pad returning parts (30) are provided on one side of the main body (10), and at least two brake pad limiting parts (20) are located between at least two brake pad returning parts (30).

5. The elastic element (1) for the brake (2) according to claim 1, characterized in that, Also includes: Mounting shaft fixing part (40) is connected to both ends of the main body (10).

6. The elastic element (1) for the brake (2) according to claim 5, characterized in that, The mounting shaft fixing part (40) forms a limiting groove (41). A ratchet (42) is provided at one end of the mounting shaft fixing part (40) away from the main body (10). The ratchet (42) extends into the groove of the limiting groove (41) and is bent to form a C-shaped space with the limiting groove (41).

7. A brake (2), characterized in that, include: clamp body (50); Piston (60), the piston (60) being disposed on the clamp body (50); Brake pad (70), the brake pad (70) is disposed in the caliper body (50) and is in transmission cooperation with the piston (60); The elastic member (1) for the brake (2) according to any one of claims 1-6, wherein when the brake (2) is in a braking state, the brake pad return portion abuts against the brake pad (70).

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