A brake

Abstract

The application relates to the technical field of vehicle brakes, in particular to a brake. The brake assembly comprises a fixed seat body, a first brake pad and a first groove; the first groove is arranged on the fixed seat body; the first brake pad partially extends into the first groove; the elastic sheet assembly comprises a clamping unit and an abutting unit; the abutting unit comprises a first abutting part, a second abutting part, a third abutting part, a fourth abutting part and a fifth abutting part; the brake comprises a first state and a second state; the first state comprises that the part of the clamping unit close to one end of the first abutting part is in abutment with the first groove, and the fifth abutting part is in abutment with the first brake pad and is arranged in a spaced mode with the first groove; the second state comprises that the first brake pad is subjected to a force, and the fifth abutting part and the clamping unit are deformed; wherein the maximum displacement amount of the side of the clamping unit close to the first abutting part in the second state is greater than the maximum displacement amount of the fifth abutting part. Thus, the unstable connection between the brake pad and the fixed seat body is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle brakes, and in particular to a brake. Background Art

[0002] The disc brake devices commonly used in current vehicle braking systems primarily consist of a fixed seat, brake pads, and a spring assembly as their core functional components. The fixed seat serves as a structural support, carrying and guiding the motion of other components. The brake pads generate braking torque by applying pressure to the surface of the brake disc. The specially designed spring assembly performs a critical return function, providing the necessary mechanical rebound force after hydraulic pressure is released, prompting the brake pads to promptly detach from the brake disc surface. The spring assembly is also positioned between the fixed seat and the brake pad to secure their relative position. Under standard operating conditions, this structure maintains a working clearance between the brake pad and the brake disc that meets design specifications through the preset deformation recovery characteristics of the spring assembly, ensuring basic responsiveness during routine braking operations.

[0003] However, the brake pad may vibrate or even shift during vehicle driving. At this time, a spring assembly is needed to fix the relative position of the brake pad and the fixed seat body to prevent the relative position of the fixed seat body and the brake pad from shifting, while also having a certain shock-absorbing effect to prevent affecting the braking process. Summary of the Invention

[0004] In order to solve the problem of unstable connection between the brake pad and the fixed seat body, the present invention provides a brake, which includes:

[0005] A brake assembly, comprising a fixed seat, a first brake pad, and a first groove; the first groove is provided on the fixed seat; the first brake pad partially extends into the first groove;

[0006] The spring piece assembly includes a locking unit and an abutting unit; the locking unit abuts against the fixed seat body; the abutting unit includes a first abutting portion, a second abutting portion, a third abutting portion, a fourth abutting portion, and a fifth abutting portion; the locking unit, the first abutting portion, the second abutting portion, the third abutting portion, the fourth abutting portion, and the fifth abutting portion are fixedly connected in sequence; part of the locking unit, the first abutting portion, the second abutting portion, the third abutting portion, and the fourth abutting portion are respectively arranged in the first groove; one side of the first brake pad abuts against a side of the locking unit close to the fifth abutting portion; the other side of the first brake pad abuts against the fifth abutting portion;

[0007] The brake includes a first state and a second state; the first state includes the part of the engaging unit close to one end of the first abutting portion abutting against the first groove, and the fifth abutting portion abutting against the first brake pad and spaced apart from the first groove; the second state includes the first brake pad being subjected to a force, causing the fifth abutting portion and the engaging unit to deform; wherein, in the second state, the maximum displacement of the side of the engaging unit close to the first abutting portion is greater than the maximum displacement of the fifth abutting portion.

[0008] In some embodiments, the first brake pad includes a first brake body and a first sliding body; the first brake body and the first sliding body are fixedly connected; one side of the first sliding body abuts against a side of the engaging unit close to the fifth abutting portion, and the other side abuts against the fifth abutting portion;

[0009] A<B; wherein A is the distance between the space enclosed by the first groove and the fifth abutting portion, and B is the distance between the fifth abutting portion and the first brake pad.

[0010] In some embodiments, the first state also includes the second abutting portion being spaced apart from the inner circumferential wall of the first groove on a side away from the first brake pad; the second state also includes the second abutting portion being abutted against the inner circumferential wall of the first groove on a side away from the first brake pad.

[0011] In some embodiments, the elastic coefficient of the fifth abutting portion is greater than the elastic coefficient of the second abutting portion.

[0012] In some embodiments, the spring assembly further includes a rebound unit; one end of the rebound unit is fixedly connected to the third abutting portion, and the other end abuts against one side of the first brake pad in the thickness direction.

[0013] In some embodiments, the rebound unit includes a first section, a second section, a third section, and a fourth section; the first section is connected to the third abutting portion, and the other end extends along the thickness direction of the first brake pad toward and away from the third abutting portion; the second section is configured as an arc-shaped piece; one end of the second section and the first section extend in the direction of the first brake pad away from the third abutting portion; one end of the third section is connected to one end of the second section close to the first brake pad, and the other end extends to abut against one side in the thickness direction of the first brake pad; one end of the fourth section is connected to one end of the third section close to the first brake pad, and the other end extends toward and away from the third abutting portion.

[0014] In some embodiments, the brake assembly further includes a second brake pad and a second groove; the second groove is disposed on the fixing seat; the second brake pad partially extends into the second groove;

[0015] The spring assembly further includes a locking unit and an abutting unit; a portion of the locking unit, the first abutting portion, the second abutting portion, the third abutting portion, and the fourth abutting portion are respectively disposed in the second groove; one side of the second brake pad abuts against a side of the locking unit in the second groove close to the fifth abutting portion, and the other side abuts against the fifth abutting portion in the second groove;

[0016] The brake includes a third state and a fourth state; the third state includes the part of the engaging unit in the second groove close to one end of the first abutting portion abutting against the second groove, and the fifth abutting portion in the second groove abutting against the first brake pad and spaced apart from the second groove; the fourth state includes the second brake pad being subjected to a force, causing the fifth abutting portion in the second groove and the engaging unit to deform; wherein, in the fourth state, the maximum displacement of the side of the engaging unit close to the first abutting portion is greater than the maximum displacement of the fifth abutting portion.

[0017] In some embodiments, the engaging unit includes a second engaging portion, a third engaging portion, and a fourth engaging portion;

[0018] One second engaging portion, one third engaging portion, one fourth engaging portion, and one first abutting portion are fixedly connected in sequence; one second engaging portion abuts against a portion of the fixing seat body close to the first groove, and another second engaging portion abuts against a portion of the fixing seat body close to the second groove;

[0019] The first state also includes the portion of the fourth engaging portion in the first groove abutting against the first groove; the second state also includes the fourth engaging portion in the first groove abutting against the first groove; the third state also includes the portion of the fourth engaging portion in the second groove abutting against the second groove; the fourth state also includes the fourth engaging portion in the second groove abutting against the second groove; wherein, in the second state, the maximum displacement of the fourth engaging portion is greater than the maximum displacement of the fifth abutting portion, and in the fourth state, the maximum displacement of the fourth engaging portion is greater than the maximum displacement of the fifth abutting portion.

[0020] In some embodiments, the locking unit further includes a first locking portion; one end of one of the first locking portions is fixedly connected to one end of the second locking portion; and two of the first locking portions are connected at one end away from the second locking portion.

[0021] In some embodiments, the second brake pad includes a second brake body and a second sliding body; the second brake body and the second sliding body are fixedly connected; one side of the second sliding body abuts against a side of the engaging unit close to the fifth abutting portion, and the other side abuts against the fifth abutting portion;

[0022] C<D; wherein C is the distance between the space enclosed by the second groove and the adjacent fifth abutting portion, and D is the distance between the fifth abutting portion and the adjacent second brake pad.

[0023] To solve the problem of unstable connection between the brake pad and the fixed seat body, the present invention has the following advantages:

[0024] When the brake is in the first state, the portion of the engaging unit near the first abutting portion abuts against the first groove, while the fifth abutting portion abuts against the first brake pad and is spaced apart from the first groove, thereby fixing the relative position of the first brake pad and the fixed seat. When the braking operation is implemented to cause the brake to enter the second state, the force acting on the first brake pad causes the fifth abutting portion and the engaging unit to deform, wherein the maximum displacement of the engaging unit near the first abutting portion is greater than the maximum displacement of the fifth abutting portion. This difference in deformation allows the fifth abutting portion to accumulate greater elastic potential energy during the force application process, suppressing the vibration and displacement of the first brake pad under continuous braking or emergency braking conditions, maintaining the stability of the relative position between the fixed seat and the first brake pad, and ensuring a smooth and reliable braking process. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A schematic diagram of a brake from a first perspective according to an embodiment is shown;

[0026] Figure 2 A schematic diagram of a brake according to an embodiment from a second perspective is shown;

[0027] Figure 3 A schematic diagram of a brake according to an embodiment from a third perspective is shown;

[0028] Figure 4 A schematic diagram of a brake according to an embodiment from a fourth perspective is shown;

[0029] Figure 5 A partial schematic diagram of a brake according to an embodiment is shown;

[0030] Figure 6 A schematic diagram of a spring assembly according to an embodiment from a first perspective is shown;

[0031] Figure 7 A schematic diagram of a spring assembly from a second perspective according to an embodiment is shown.

[0032] Figure numerals: 10 brake assembly; 11 fixed seat; 12 first brake pad; 121 first brake body; 122 first sliding body; 13 second brake pad; 131 second brake body; 132 second sliding body; 14 first groove; 15 second groove; 20 spring assembly; 21 locking unit; 211 first locking part; 212 second locking part; 213 third locking part; 214 fourth locking part; 22 abutting unit; 221 first abutting part; 222 second abutting part; 223 third abutting part; 224 fourth abutting part; 225 fifth abutting part; 23 rebound unit; 231 first section; 232 second section; 233 third section; 234 fourth section. DETAILED DESCRIPTION

[0033] The present disclosure will now be discussed with reference to several exemplary embodiments. It should be understood that these embodiments are discussed only to enable those skilled in the art to better understand and implement the present disclosure, rather than to imply any limitation on the scope of the present disclosure.

[0034] As used herein, the term "including" and its variations are to be interpreted as open-ended terms meaning "including, but not limited to." The term "based on" is to be interpreted as "based, at least in part, on." The terms "one embodiment" and "an embodiment" are to be interpreted as "at least one embodiment." The term "another embodiment" is to be interpreted as "at least one other embodiment." Terms such as "upper," "lower," "left," "right," "front," "back," "top," "bottom," "inner," "outer," "vertical," "horizontal," "transverse," and "longitudinal" indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. These terms are primarily intended to better describe the present application and its embodiments and are not intended to limit the devices, elements, or components indicated to having a specific orientation, or to being constructed and operated in a specific orientation. Furthermore, some of the above terms may be used to indicate other meanings besides orientation or positional relationships. For example, the term "on" may, in certain circumstances, be used to indicate a dependency or connection relationship. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances. Furthermore, the terms "installed," "disposed," "provided with," "connected," and "connected" are to be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection, an indirect connection through an intermediate medium, or an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances. In addition, the terms "first", "second", etc. are mainly used to distinguish different devices, elements, or components (the specific types and structures may be the same or different), and are not used to indicate or imply the relative importance or quantity of the indicated devices, elements, or components. Unless otherwise specified, "plurality" means two or more.

[0035] In a vehicle braking system, vibration and deflection occur during brake operation, requiring the spring assembly 20 to dampen the brake pads. This places high demands on the damping capacity of the brake assembly 10. Excessive brake vibration during braking can cause deflection between the first brake pad 12 and the brake disc, increasing wear and tear, and ultimately impacting brake life and driving safety.

[0036] Embodiment 1: This embodiment discloses a brake, such as Figure 4 As shown, the brake includes a brake assembly 10 and a spring assembly 20. The brake assembly 10 includes a fixed seat body 11, a first brake pad 12 and a first groove 14. The first groove 14 is provided on the fixed seat body 11. The first brake pad 12 partially extends into the first groove 14.

[0037] The spring assembly 20 includes a snap-fit ​​unit 21 and a contact unit 22. The snap-fit ​​unit 21 contacts the fixed seat 11. Figure 5 As shown, the abutment unit 22 includes a first abutment portion 221, a second abutment portion 222, a third abutment portion 223, a fourth abutment portion 224, and a fifth abutment portion 225. The engaging unit 21, the first abutment portion 221, the second abutment portion 222, the third abutment portion 223, the fourth abutment portion 224, and the fifth abutment portion 225 are fixedly connected in sequence. Portions of the engaging unit 21, the first abutment portion 221, the second abutment portion 222, the third abutment portion 223, and the fourth abutment portion 224 are respectively disposed within the first groove 14. One side of the first brake pad 12 abuts against the side of the engaging unit 21 near the fifth abutment portion 225. The other side of the first brake pad 12 abuts against the fifth abutment portion 225.

[0038] The brake includes a first state and a second state. In the first state, the portion of the locking unit 21 near one end of the first abutting portion 221 abuts against the first groove 14, and the fifth abutting portion 225 abuts against the first brake pad 12 and is spaced apart from the first groove 14, so that the first brake pad 12 and the fixed seat body 11 have a certain relative displacement, which has a shock-absorbing effect during the use of the first brake pad 12. In the second state, the first brake pad 12 is subjected to an action force, causing the fifth abutting portion 225 and the locking unit 21 to deform. At this time, due to the relative displacement between the first brake pad 12 and the first groove 14, the deformation of the fifth abutting portion 225 and the locking unit 21 is required to provide a rebound force to prevent the first brake pad 12 from detaching from the first groove 14. In the second state, the maximum displacement of the side of the locking unit 21 near the first abutting portion 221 is greater than the maximum displacement of the fifth abutting portion 225. When the force applied is low, the fifth abutting portion 225 is located outside the space enclosed by the first groove 14. At this time, the side of the engaging unit 21 closest to the first abutting portion 221 deforms, allowing the first groove 14 to support the first brake pad 12 via the side of the engaging unit 21 closest to the first abutting portion 221, thereby fixing the relative position of the first brake pad 12 and the first groove 14. The maximum displacement of the side of the engaging unit 21 closest to the first abutting portion 221 is greater than the maximum displacement of the fifth abutting portion 225, preventing the first brake pad 12 from deforming excessively toward the side closest to the fifth abutting portion 225, which could result in excessive relative displacement between the first brake pad 12 and the first groove 14.

[0039] Furthermore, the first brake pad 12 includes a first brake body 121 and a first sliding body 122. The first brake body 121 and the first sliding body 122 are fixedly connected. One side of the first sliding body 122 abuts against the side of the engaging unit 21 near the fifth abutting portion 225, and the other side abuts against the fifth abutting portion 225.

[0040] like Figure 1As shown, A < B. Wherein, A is the distance between the space surrounded by the first groove 14 and the fifth abutting portion 225, B is the distance between the fifth abutting portion 225 and the first brake pad 12. By setting the distance A < B, the length of the force arm when the spring sheet assembly 20 is deformed is shorter, so that when the first brake pad 12 vibrates downward, the relative displacement angle of the third abutting portion 223 and the fourth abutting portion 224 is smaller, achieving the effect of reducing vibration and impact noise, and preventing the force arm from being too long and causing fatigue after long-term use.

[0041] Further, the first state further includes that the second abutting portion 222 is spaced apart from the inner wall of the first groove 14 on the side away from the first brake pad 12. The spacing of the second abutting portion 222 from the inner wall of the first groove 14 in the first state can reduce the contact area, achieving the effect of reducing resonance. The second state further includes that the second abutting portion 222 abuts the inner wall of the first groove 14 on the side away from the first brake pad 12. The abutment of the second abutting portion 222 with the inner wall of the first groove 14 in the second state can provide additional rebound force to help the brake cope with high pressure load.

[0042] Preferably, the elastic coefficient of the fifth abutting portion 225 is greater than the elastic coefficient of the second abutting portion 222. By making the elastic coefficient of the fifth abutting portion 225 greater than the elastic coefficient of the second abutting portion 222, the fifth abutting portion 225 can provide greater rebound force to the brake. At the same time, the smaller elastic coefficient of the second abutting portion 222 makes it easier to deform, so that the second abutting portion 222 can respond faster when the state of the spring sheet assembly 20 changes.

[0043] Further, the spring sheet assembly 20 further includes a rebound unit 23. One end of the rebound unit 23 is fixedly connected with the third abutting portion 223, and the other end abuts one side of the first brake pad 12 in the thickness direction. The fixed connection of the rebound unit 23 with the third abutting portion 223 and the abutment with the first brake pad 12 can form an elastic support structure, providing additional rebound force to help the brake reset after being stressed.

[0044] Further, as shown in FIG. 6, the spring sheet assembly 20 further includes a rebound unit 23. One end of the rebound unit 23 is fixedly connected with the third abutting portion 223, and the other end abuts one side of the first brake pad 12 in the thickness direction. The fixed connection of the rebound unit 23 with the third abutting portion 223 and the abutment with the first brake pad 12 can form an elastic support structure, providing additional rebound force to help the brake reset after being stressed. Figure 6As shown, the rebound unit 23 includes a first section 231, a second section 232, a third section 233, and a fourth section 234. The first section 231 is connected to the third abutting portion 223, and the other end extends in the thickness direction of the first brake pad 12 in a direction away from the third abutting portion 223. The second section 232 is configured as an arc-shaped piece. One end of the second section 232 extends from the first section 231 in the direction of the first brake pad 12 away from the third abutting portion 223. One end of the third section 233 is connected to the end of the second section 232 close to the first brake pad 12, and the other end extends to abut against one side of the first brake pad 12 in the thickness direction. One end of the fourth section 234 is connected to the end of the third section 233 close to the first brake pad 12, and the other end extends in a direction away from the third abutting portion 223. The arrangement of the first section 231, the second section 232, the third section 233 and the fourth section 234 can form a multi-section elastic structure. At the same time, the design of the rebound unit 23 makes the connection between the spring assembly 20 and the fixed seat body 11 more secure, preventing the spring assembly 20 from relative displacement during the operation of the brake. At the same time, the deformation of the fourth section 234 provides a rebound force for the first sliding body 122, thereby helping the first brake pad 12 to reset during the braking process.

[0045] Preferably, if Figure 2 As shown, the brake assembly 10 further includes a second brake pad 13 and a second groove 15. Figure 3 As shown, first brake pad 12 and second brake pad 13 are spaced apart. Second groove 15 is provided on fixed base body 11. Second brake pad 13 partially extends into second groove 15. By providing second brake pad 13 and second groove 15, braking force can be provided simultaneously by first brake pad 12 and second brake pad 13 during vehicle braking, increasing the braking contact area and achieving better braking effect.

[0046] The spring assembly 20 also includes a locking unit 21 and an abutting unit 22. Portions of the locking unit 21, the first abutting portion 221, the second abutting portion 222, the third abutting portion 223, and the fourth abutting portion 224 are respectively disposed within the second groove 15. One side of the second brake pad 13 abuts against the side of the locking unit 21 near the fifth abutting portion 225 within the second groove 15, and the other side abuts against the fifth abutting portion 225 within the second groove 15.

[0047] The brake includes a third state and a fourth state. In the third state, the portion of the engaging unit 21 in the second groove 15 near one end of the first abutting portion 221 abuts against the second groove 15, and the fifth abutting portion 225 in the second groove 15 abuts against the first brake pad 12 and is spaced apart from the second groove 15, so that the second brake pad 13 and the fixed seat body 11 have a certain relative displacement, which has a shock-absorbing effect during the use of the second brake pad 13. In the fourth state, the second brake pad 13 is subjected to an applied force, causing the fifth abutting portion 225 in the second groove 15 and the engaging unit 21 to deform. At this time, due to the relative displacement between the second brake pad 13 and the second groove 15, the deformation of the fifth abutting portion 225 and the engaging unit 21 is required to provide a rebound force to prevent the second brake pad 13 from disengaging from the second groove 15. In the fourth state, the maximum displacement of the side of the engaging unit 21 near the first abutting portion 221 is greater than the maximum displacement of the fifth abutting portion 225. When the fifth abutting portion 225 is subjected to a relatively small force, it is located outside the space enclosed by the second groove 15. At this time, the side of the engaging unit 21 near the first abutting portion 221 deforms, allowing the second groove 15 to support the second brake pad 13 via the side of the engaging unit 21 near the first abutting portion 221, thereby fixing the relative position of the second brake pad 13 and the second groove 15. The maximum displacement of the side of the engaging unit 21 near the first abutting portion 221 is greater than the maximum displacement of the fifth abutting portion 225, preventing the second brake pad 13 from deforming excessively toward the side near the fifth abutting portion 225, which would result in excessive relative displacement between the second brake pad 13 and the second groove 15.

[0048] Furthermore, if Figure 7 As shown, the engaging unit 21 includes a second engaging portion 212 , a third engaging portion 213 , and a fourth engaging portion 214 .

[0049] A second engaging portion 212, a third engaging portion 213, a fourth engaging portion 214, and a first abutting portion 221 are sequentially fixedly connected. One second engaging portion 212 abuts against a portion of the fixed base body 11 near the first groove 14, and the other second engaging portion 212 abuts against a portion of the fixed base body 11 near the second groove 15. This allows a portion of the fixed base body 11 to be disposed between the second engaging portion 212 and the fourth engaging portion 214 and to be clamped by the second engaging portion 212 and the fourth engaging portion 214, thereby further strengthening the connection between the fixed base body 11 and the spring assembly 20.

[0050] The first state also includes a portion of the fourth engaging portion 214 within the first groove 14 abutting against the first groove 14, at which point the fourth engaging portion 214 deforms to fix the relative position of the first brake pad 12 to the first groove 14. The second state also includes a portion of the fourth engaging portion 214 within the first groove 14 abutting against the first groove 14, at which point the fourth engaging portion 214 deforms to fix the relative position of the first brake pad 12 to the first groove 14. The third state also includes a portion of the fourth engaging portion 214 within the second groove 15 abutting against the second groove 15, at which point the fourth engaging portion 214 deforms to fix the relative position of the second brake pad 13 to the second groove 15. The fourth state also includes a portion of the fourth engaging portion 214 within the second groove 15 abutting against the second groove 15, at which point the fourth engaging portion 214 deforms to fix the relative position of the second brake pad 13 to the second groove 15. In the second state, the maximum displacement of the fourth engaging portion 214 is greater than the maximum displacement of the fifth abutting portion 225. When the fifth abutting portion 225 is subjected to a relatively low force, it is located outside the space enclosed by the first groove 14. At this time, the fourth engaging portion 214 deforms, allowing the first groove 14 to support the first brake pad 12 via the fourth engaging portion 214, thereby fixing the relative position of the first brake pad 12 and the first groove 14. The maximum displacement of the fourth engaging portion 214 is greater than the maximum displacement of the fifth abutting portion 225, preventing the first brake pad 12 from deforming excessively toward the side closer to the fifth abutting portion 225, which would result in excessive relative displacement between the first brake pad 12 and the first groove 14. In the fourth state, the maximum displacement of the fourth engaging portion 214 is greater than the maximum displacement of the fifth abutting portion 225. When subjected to low force, the fifth abutting portion 225 is located outside the space enclosed by the second groove 15. At this time, the fourth engaging portion 214 deforms, allowing the second groove 15 to support the second brake pad 13 via the fourth engaging portion 214, thereby fixing the relative position of the second brake pad 13 and the second groove 15. The maximum displacement of the fourth engaging portion 214 is greater than the maximum displacement of the fifth abutting portion 225, preventing the second brake pad 13 from deforming excessively toward the side closest to the fifth abutting portion 225, which could result in excessive relative displacement between the second brake pad 13 and the second groove 15.

[0051] Preferably, the locking unit 21 also includes a first locking portion 211. One end of the first locking portion 211 is fixedly connected to one end of the second locking portion 212. The two first locking portions 211 are connected away from one end of the second locking portion 212. By providing the first locking portion 211, the locking unit 21 can be more tightly engaged with the fixed seat body 11, while reducing the deformation of the second locking portion 212 and providing a more stable locking effect. When the rebound unit 23 drives the first friction plate and the second friction plate to move closer to each other, the rebound unit 23 will generate a force moving away from each other, and the two first locking portions 211 are connected away from one end of the second locking portion 212 to prevent the locking unit 21 from moving due to the mutual approach of the first friction plate and the second friction plate.

[0052] Furthermore, the second brake pad 13 includes a second brake body 131 and a second sliding body 132. The second brake body 131 and the second sliding body 132 are fixedly connected. One side of the second sliding body 132 abuts against the side of the engaging unit 21 near the fifth abutting portion 225, and the other side of the second sliding body abuts against the fifth abutting portion 225.

[0053] like Figure 2 As shown, C < D. Here, C is the distance between the space enclosed by the second groove 15 and the adjacent fifth abutting portion 225, and D is the distance between the fifth abutting portion 225 and the adjacent second brake pad 13. By setting the spacing C < D, the lever arm length during deformation of the spring assembly 20 is shortened. This reduces the relative displacement angle between the third abutting portion 223 and the fourth abutting portion 224 when the second brake pad 13 vibrates downward, thereby reducing vibration and impact noise, and preventing fatigue caused by an excessively long lever arm after prolonged use.

[0054] Those skilled in the art will appreciate that the above-mentioned embodiments are specific examples for implementing the present disclosure, and that in actual applications, various changes may be made thereto in form and detail without departing from the scope of the present disclosure.

Claims

1. A brake, characterized in that: The brake comprises: A brake assembly, comprising a fixed seat, a first brake pad, and a first groove; the first groove is provided on the fixed seat; the first brake pad partially extends into the first groove; The spring piece assembly includes a locking unit and an abutting unit; the locking unit abuts against the fixed seat body; the abutting unit includes a first abutting portion, a second abutting portion, a third abutting portion, a fourth abutting portion, and a fifth abutting portion; the locking unit, the first abutting portion, the second abutting portion, the third abutting portion, the fourth abutting portion, and the fifth abutting portion are fixedly connected in sequence; part of the locking unit, the first abutting portion, the second abutting portion, the third abutting portion, and the fourth abutting portion are respectively arranged in the first groove; one side of the first brake pad abuts against a side of the locking unit close to the fifth abutting portion; the other side of the first brake pad abuts against the fifth abutting portion; The brake includes a first state and a second state; the first state includes a portion of the engaging unit close to one end of the first abutting portion abutting against the first groove, and the fifth abutting portion abutting against the first brake pad and spaced apart from the first groove; the second state includes a force acting on the first brake pad, causing the fifth abutting portion and the engaging unit to deform; wherein, in the second state, the maximum displacement of the side of the engaging unit close to the first abutting portion is greater than the maximum displacement of the fifth abutting portion; The first brake pad includes a first brake body and a first sliding body; the first brake body and the first sliding body are fixedly connected; one side of the first sliding body abuts against the side of the engaging unit close to the fifth abutting portion, and the other side abuts against the fifth abutting portion; A<B; wherein A is the distance between the space enclosed by the first groove and the fifth abutting portion, and B is the distance between the fifth abutting portion and the first brake pad.

2. A brake according to claim 1, characterized in that: The first state also includes the second abutting portion being spaced apart from the inner circumferential wall of the first groove on one side away from the first brake pad; the second state also includes the second abutting portion being in contact with the inner circumferential wall of the first groove on one side away from the first brake pad.

3. A brake according to claim 2, characterized in that: The elastic coefficient of the fifth abutting portion is greater than the elastic coefficient of the second abutting portion.

4. A brake according to claim 1, characterized in that: The elastic sheet assembly further includes a rebound unit; one end of the rebound unit is fixedly connected to the third abutting portion, and the other end abuts against one side of the first brake pad in the thickness direction.

5. A brake according to claim 4, characterized in that: The rebound unit includes a first section, a second section, a third section, and a fourth section; the first section is connected to the third abutting portion, and the other end extends along the thickness direction of the first brake pad in a direction away from the third abutting portion; the second section is configured as an arc-shaped piece; one end of the second section and the first section extend in the direction of the first brake pad away from the third abutting portion; one end of the third section is connected to an end of the second section close to the first brake pad, and the other end extends to abut against one side in the thickness direction of the first brake pad; One end of the fourth section is connected to one end of the third section close to the first brake pad, and the other end extends in a direction away from the third abutting portion.

6. A brake according to claim 1, characterized in that: The brake assembly further includes a second brake pad and a second groove; the second groove is provided on the fixing seat; the second brake pad partially extends into the second groove; The spring assembly further includes a locking unit and an abutting unit; a portion of the locking unit, the first abutting portion, the second abutting portion, the third abutting portion, and the fourth abutting portion are respectively disposed in the second groove; one side of the second brake pad abuts against a side of the locking unit in the second groove close to the fifth abutting portion, and the other side abuts against the fifth abutting portion in the second groove; The brake includes a third state and a fourth state; the third state includes the part of the engaging unit in the second groove close to one end of the first abutting portion abutting against the second groove, and the fifth abutting portion in the second groove abutting against the first brake pad and spaced apart from the second groove; the fourth state includes the second brake pad being subjected to a force, causing the fifth abutting portion in the second groove and the engaging unit to deform; wherein, in the fourth state, the maximum displacement of the side of the engaging unit close to the first abutting portion is greater than the maximum displacement of the fifth abutting portion.

7. A brake according to claim 6, characterized in that: The engaging unit includes a second engaging portion, a third engaging portion, and a fourth engaging portion; One second engaging portion, one third engaging portion, one fourth engaging portion, and one first abutting portion are fixedly connected in sequence; one second engaging portion abuts against a portion of the fixing seat body close to the first groove, and another second engaging portion abuts against a portion of the fixing seat body close to the second groove; The first state also includes the portion of the fourth engaging portion in the first groove abutting against the first groove; the second state also includes the fourth engaging portion in the first groove abutting against the first groove; the third state also includes the portion of the fourth engaging portion in the second groove abutting against the second groove; the fourth state also includes the fourth engaging portion in the second groove abutting against the second groove; wherein, in the second state, the maximum displacement of the fourth engaging portion is greater than the maximum displacement of the fifth abutting portion, and in the fourth state, the maximum displacement of the fourth engaging portion is greater than the maximum displacement of the fifth abutting portion.

8. A brake according to claim 7, characterized in that: The clamping unit further includes a first clamping portion; one end of one of the first clamping portions is fixedly connected to one end of the second clamping portion; and two first clamping portions are connected at one end away from the second clamping portion.

9. A brake according to claim 8, characterized in that: The second brake pad includes a second brake body and a second sliding body; the second brake body and the second sliding body are fixedly connected; one side of the second sliding body abuts against a side of the engaging unit close to the fifth abutting portion, and the other side abuts against the fifth abutting portion; C<D; wherein C is the distance between the space enclosed by the second groove and the adjacent fifth abutting portion, and D is the distance between the fifth abutting portion and the adjacent second brake pad.

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