Brake pad assembly

Abstract

The utility model provides a brake pad assembly which comprises a brake track, the brake track comprises a vertically-arranged upper base plate, the two sides of the upper base plate are both connected with back hook parts which are bent forwards and downwards in a hook shape, guide grooves for containing installation parts of a brake pad back plate are formed in the back hook parts, and openings of the guide grooves face the rear portion of the upper base plate; a pair of reset reeds is arranged between the hook-back portions on the two sides of the upper base plate. The installation portion of the brake pad back plate can slide in the guide groove so that the brake pad can have a brake position and a non-brake position. The reset reed abuts against the brake pad located at the brake position so as to assist the brake pad to move to the non-brake position. The guide grooves are formed by the hook-back portions on the two sides of the upper base plate to contain the installation portions of the brake pad back plate, the openings of the guide grooves face the rear portion of the upper base plate, the guide grooves are matched with calipers to achieve stable positioning of the brake pad during assembly, the reset reeds on the inner sides of the hook-back portions assist in achieving reset of the brake pad, and the brake pad can return rapidly.

Description

Technical Field

[0001] The utility model relates to the technical field of brake pads, in particular to a brake pad assembly. Background Art

[0002] The brake pads are connected to the caliper in the brake device in a limiting manner. The left and right oppositely arranged brake pads approach each other to achieve frictional braking on the tire or its linkage structure. If the external thrusts of the left and right brake pads are uneven or the brake track deforms after long-term use, the brake pads will tilt or be unable to displace stably, resulting in unnecessary contact and friction between the brake pads and the brake disc, or reducing the braking effect and causing unnecessary wear of the brake pads, shortening the service life of the brake pads and generating noise during use. To solve such problems, the applicant previously developed a brake spring plate (CN212250910U), which includes a back plate and leg assemblies symmetrically arranged on both sides of the back plate. The leg assemblies include middle legs and clamping legs symmetrically arranged on both sides of the middle legs. The middle legs and the clamping legs are bent towards the same side of the back plate, and an arc-shaped bending part protruding towards the bending direction of the middle leg is provided at a position near the end of the middle leg. The distance between the end of the clamping leg and the back plate is greater than the distance between the arc-shaped bending part of the middle leg and the back plate; mounting holes are provided at the junctions of the back plate and each middle leg and at the junctions of the back plate and each clamping leg. This brake spring plate enables the accurate installation and positioning of the brake pads, not only ensuring that the brake pads are completely separated from the brake disc when returning, avoiding unnecessary wear of the brake pads to extend the service life of the brake pads, but also greatly reducing the braking noise.

[0003] To further improve the stability of the positioning and displacement of the brake pads, the applicant has improved the design of the assembly for installing the brake pads, making the brake track and the installation of the brake pads more stable and capable of assisting in the reset of the brake pads. Summary of the Utility Model

[0004] The purpose of the utility model is to overcome the shortcomings and deficiencies existing in the prior art, and provide a brake pad assembly. The technical solution adopted by the utility model is as follows:

[0005] A brake pad assembly includes a brake track. The brake track includes a vertically arranged upper substrate made of metal. Hook-shaped bending parts that bend forward and downward are connected to both sides of the upper substrate. A guiding groove for forming an installation part for accommodating the back plate of the brake pad is formed inside the hook-shaped bending parts, and the opening of the guiding groove faces the rear of the upper substrate; A pair of reset spring plates are arranged between the hook-shaped bending parts on both sides of the upper substrate. The installation part of the back plate of the brake pad can slide in the guiding groove so that the brake pad has a braking position where the two brake pads displace inward and approach each other to generate frictional force on the tire and a non-braking position where the two brake pads displace outward and move away from each other; The reset spring plate abuts against the brake pad in the braking position to assist the brake pad in displacing to the non-braking position.

[0006] Preferably, the hooking part includes an upper travel plate, a lower travel plate, and an arc connecting part connecting the upper and lower travel plates. A travel groove is formed on the upper travel plate and / or the lower travel plate. The surface of the mounting part of the brake pad back plate has a hemispherical protrusion, and the hemispherical protrusion is limited in the travel groove.

[0007] Preferably, it further includes a lower substrate vertically arranged relative to the upper substrate. A suspended plate is arranged at the lower end of the upper substrate. The suspended plate is suspended above the lower substrate and is parallel to the lower substrate or matches the slope of the side of the brake pad. The suspended plate plays a certain role in resisting and positioning the bottom or both sides of the brake pad body. Preferably, both sides of the brake pad body have inclined surfaces to cooperate with the suspended plate, and the lower substrate can further support the lower surface of the brake pad body and guide it.

[0008] Preferably, an extension plate extends downward from the hollow part at the lower end of the upper substrate. The suspended plate is connected to the upper substrate through the extension plate. There is an arc-shaped bending part between the extension plate and the suspended plate. The extension plate and the suspended plate are integrally connected and hollow in the middle.

[0009] Finally, the middle position of the lower substrate has an empty groove, and both ends of the lower substrate extend upward and are connected to the fixing part.

[0010] The beneficial effects of the present utility model are as follows: The device forms a guiding groove through the hooking parts on both sides of the upper substrate to accommodate the mounting part of the brake pad back plate. The opening of the guiding groove faces the rear of the upper substrate, and during assembly, it cooperates with the caliper to achieve stable positioning of the brake pad. And at the inner position of the hooking part, a return spring piece assists in resetting the brake pad, enabling the brake pad to quickly return to its position. Description of the Drawings

[0011] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, obtaining other drawings based on these drawings still belongs to the scope of the present utility model.

[0012] Figure 1 It is a schematic structural diagram of the upper and lower substrates of the brake track;

[0013] Figure 2 It is a schematic structural diagram of the brake pad cooperating with the brake track;

[0014] Figure 3 It is a front view of the brake track;

[0015] Figure 4 It is for Figure 1 The enlarged view at A in

[0016] In the figure, 1 is the upper substrate, 11 is the hook-back part, 111 is the upper stroke plate, 112 is the arc connecting part, 113 is the lower stroke plate, 12 is the reset reed, 13 is the suspended plate, 131 is the extension plate, 2 is the lower substrate, 21 is the empty groove, 22 is the connecting plate, 23 is the guiding plate, 3 is the connecting and fixing part, 4 is the brake pad, 41 is the brake pad back plate, and 42 is the hemispherical protrusion. Specific embodiments

[0017] To make the objectives, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below in conjunction with embodiments and the accompanying drawings.

[0018] The directional and positional terms mentioned in the present utility model, such as "upper", "lower", "front", "rear", "left", "right", "inner", "outer", "top", "bottom", "side", etc., are only with reference to the directions or positions in the accompanying drawings. Therefore, the directional and positional terms used are for explaining and understanding the present utility model, rather than limiting the protection scope of the present utility model.

[0019] Embodiment 1

[0020] As Figures 1-4 shown, a brake pad assembly includes a brake track. The brake track includes a vertically arranged upper substrate 1 made of metal. Hook-back parts 11 that are bent forward and downward in a hook shape are connected to both sides of the upper substrate 1. A guiding groove for accommodating the installation part of the brake pad back plate 41 is formed inside the hook-back part 11, and the opening of the guiding groove faces the rear of the upper substrate 1;

[0021] A pair of reset reeds 12 are arranged between the hook-back parts 11 on both sides of the upper substrate 1. The installation part of the brake pad back plate 41 can slide in the guiding groove so that the brake pad 4 has a braking position where the two brake pads displace inward and approach each other to generate frictional force on the tire and a non-braking position where the two brake pads displace outward and move away from each other; the reset reed 12 abuts against the brake pad 4 in the braking position to assist the brake pad 4 to displace to the non-braking position. Referring to Figure 1 , the reset reed 12 extends downward from the upper end of the upper substrate 1, and it has multiple bends to make it elastic. Its lower end has a baffle or an inclined surface that abuts against the brake pad 4, preferably set as an inclined surface, so that the inclined surface gradually deforms and adheres to the brake pad during the process of abutting against the brake pad 4, and generates a restoring force on the brake pad 4 after the external force on the brake pad back plate is withdrawn.

[0022] The hook-back part 11 includes an upper stroke plate 111, a lower stroke plate 113, and an arc connecting part 112 connecting the upper and lower stroke plates. Stroke grooves are opened on the upper stroke plate 111 and / or the lower stroke plate 113. The surface of the installation part of the brake pad back plate 41 has a hemispherical protrusion 42, and the hemispherical protrusion 42 is limited in the stroke groove.

[0023] Further included is a lower substrate 2 vertically disposed relative to the upper substrate 1. A suspended plate 13 is provided at the lower end of the upper substrate 1. The suspended plate 13 is suspended above the lower substrate 2 and is parallel to the lower substrate 2 or matches the side slope of the brake pad 4. The suspended plate 13 plays a certain role in resisting and positioning the bottom or both sides of the brake pad body. Preferably, both sides of the brake pad body have inclined surfaces to cooperate with the suspended plate. The lower substrate can further support the lower surface of the brake pad body and guide it.

[0024] An extension plate 131 extends downward from the hollow portion at the lower end of the upper substrate 1. The suspended plate 13 is connected to the upper substrate 1 through the extension plate 131. There is an arc-shaped bending portion between the extension plate 131 and the suspended plate 13. The extension plate 131 and the suspended plate 13 are integrally connected and hollow in the middle.

[0025] Finally, a hollow slot 21 is provided at the middle position of the lower substrate 2. The two ends of the lower substrate 2 extend upward and are connected to the fixing portion 3.

[0026] The above-disclosed are only the preferred embodiments of the present invention. Of course, the scope of the rights of the present invention cannot be limited thereby. Therefore, equivalent changes made according to the claims of the present invention still fall within the scope covered by the present invention.

Claims

1. A brake pad assembly, comprising a brake track, the brake track including a vertically arranged upper substrate (1), characterized in that: On both sides of the upper substrate (1), there are hook-back portions (11) that are bent forward and downward in a hook shape. A guiding groove for accommodating the mounting portion of the brake pad back plate (41) is formed within the hook-back portion (11), and the opening of the guiding groove faces the rear of the upper substrate (1). Between the hook-back portions (11) on both sides of the upper substrate (1), there is a pair of reset reed pieces (12). The mounting portion of the brake pad back plate (41) can slide within the guiding groove so that the brake pad (4) has a braking position and a non-braking position. The reset reed piece (12) abuts against the brake pad (4) in the braking position to assist the brake pad (4) in displacing to the non-braking position.

2. The brake pad assembly according to claim 1, wherein: The hook-back portion (11) includes an upper travel plate (111), a lower travel plate (113), and an arc-shaped connecting portion (112) connecting the upper and lower travel plates. A travel groove is formed on the upper travel plate (111) and / or the lower travel plate (113). A hemispherical protrusion (42) is provided on the surface of the mounting portion of the brake pad back plate (41), and the hemispherical protrusion (42) is limited within the travel groove.

3. A brake pad assembly according to claim 1, characterized in that: It further includes a lower substrate (2) vertically arranged relative to the upper substrate (1). A suspension plate (13) is provided at the lower end of the upper substrate (1), and the suspension plate (13) is suspended above the lower substrate (2) and is parallel to the lower substrate (2) or matches the slope of the side of the brake pad (4).

4. The brake pad assembly according to claim 3, wherein: An extension plate (131) extends downward from the hollowed-out portion at the lower end of the upper substrate (1), and the suspension plate (13) is connected to the upper substrate (1) through the extension plate (131).

5. A brake pad assembly according to claim 4, characterized in that: There is an arc-shaped bending portion between the extension plate (131) and the suspension plate (13).

6. A brake pad assembly according to claim 4, characterized in that: The extension plate (131) and the suspension plate (13) are integrally connected and hollow in the middle.

7. A brake pad assembly according to claim 3, wherein: At the middle position of the lower substrate (2), there is an empty groove (21). The two ends of the lower substrate (2) extend upward and are connected to the fixing portion (3).

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