Brake pad positioning assembly

Abstract

The utility model provides a brake pad positioning assembly which comprises calipers, a metal base plate installed on the calipers and a brake track formed by integrally bending the metal base plate, an upper limiting plate of the brake track serves as a lower positioning plate of a positioning groove at the same time, and the opening direction of the positioning groove is opposite to the opening direction of the brake track. According to the technical scheme, the metal base plate is bent to integrally form the brake track containing the brake pad installation part and the positioning groove matched with the calipers in a positioning mode, the brake track and the calipers are preliminarily positioned, the limiting boss is formed at the outer end of the surface of the positioning protruding block, and the upper positioning plate of the positioning groove tends to incline upwards relative to the surface of the positioning protruding block; an included angle for containing the limiting boss is formed between the upper positioning plate and the groove bottom plate of the positioning groove, the pressing plate at the hollowed-out position of the upper positioning plate is in contact fit with the upper surface of the positioning protruding block, the outer end of the pressing plate abuts against the side of the limiting boss, secondary positioning is formed, and the positioning installation structure is easy to produce and stable in positioning.

Description

Technical Field

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

[0002] At present, the brake structure used for braking inside a motorcycle or a bicycle generally includes a brake track and brake pads. The brake track is provided with a brake groove for the brake pads to slide. The brake track includes a metal substrate and a groove formed by bending the metal substrate. When the brake pads (including the brake pad steel back connected to the brake pad body) move in the brake groove, they have an initial position and a braking position. When the brake pad steel back reaches the braking position and completes the braking action, after the external pressure is cancelled, relying on the vibration generated during the vehicle driving, it gradually moves from the braking position to the initial position to achieve reset.

[0003] The brake pads are connected to the caliper in a limited way through the brake track. If the external thrusts of the left and right brake pads are uneven or the brake track is deformed after long-term use, it will cause the brake pads to tilt or be unable to move stably, resulting in unnecessary contact and friction between the brake pads and the brake disc, or reducing the braking effect, 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 piece (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. Installation holes are provided at the junction of the back plate and each middle leg and at the junction of the back plate and each clamping leg. This brake spring piece enables the brake pads to be accurately installed and positioned. It can not only ensure that the brake pads are completely separated from the brake disc when returning, avoid unnecessary wear of the brake pads, extend the service life of the brake pads, but also greatly reduce the braking noise.

[0004] To further improve the stability of brake pad positioning, the applicant has improved the design of the caliper and the brake track for installing the brake pads, making the installation of the brake track and the brake pads more stable, so that the brake pads can still be stably positioned during the sliding process. Content of the Utility Model

[0005] The purpose of the utility model is to overcome the defects and deficiencies existing in the prior art, and provide a brake pad positioning component. The technical solution adopted by the utility model is as follows:

[0006] A brake pad positioning assembly, comprising a caliper, a metal substrate mounted on the caliper, and a brake track integrally bent from the metal substrate. The metal substrate is integrally provided with two left and right positioning units. Each positioning unit includes a positioning groove located above the brake track, and the upper limit plate of the brake track simultaneously serves as the lower positioning plate of the positioning groove. The opening direction of the positioning groove is opposite to the opening direction of the brake track;

[0007] The caliper is formed with a positioning groove and a positioning protrusion. The outer end of the upper surface of the positioning protrusion protrudes upward to form a limiting boss. The positioning protrusion extends into the positioning groove on the metal substrate, and the brake track is embedded in the positioning groove. The upper positioning plate of the positioning groove is inclined upward so that the included angle α between it and the metal substrate is an acute angle to make way for the limiting boss on the surface of the positioning protrusion. The middle of the upper positioning plate is hollowed out, and a pressing plate extends from the hollowed-out part. The pressing plate is in contact and cooperation with the upper surface of the positioning protrusion, and the outer end of the pressing plate abuts against the inner side of the limiting boss.

[0008] Preferably, the upper positioning plate of the positioning groove is connected to the groove bottom plate of the positioning groove. The groove bottom plate is in contact and cooperation with the outer end face of the positioning protrusion, and a side positioning plate extends from the side of the groove bottom plate. The side positioning plate is in side positioning cooperation with the positioning protrusion.

[0009] Preferably, the two left and right positioning units are spaced apart by an empty groove, and the side positioning plate is arranged on the side where the two left and right positioning units are close to each other.

[0010] Preferably, the middle of the lower limit plate of the brake track is hollowed out, and an extension plate extends from the hollowed-out part of the lower limit plate. The extension plate includes a supporting elastic piece bent upward. There is a distance between the supporting elastic piece and the upper surface of the lower limit plate. The installation part of the brake pad is installed in the brake track and is clamped and positioned by the upward supporting force provided by the supporting elastic piece.

[0011] Preferably, the outer end of the supporting elastic piece is a supporting parallel section parallel to the lower limit plate. The supporting parallel section of the supporting elastic piece plays a certain guiding role for the brake pad.

[0012] Preferably, the outer end of the lower limit plate includes an upwardly warped section and a limiting parallel section connected to the outer end of the warped section and parallel to the lower limit plate. The parallel section of the lower limit plate plays a further guiding role for the installation part of the brake pad. After the installation part of the brake pad is installed on the supporting parallel section, it presses down on the supporting parallel section. At this time, the installation part of the brake pad just contacts the limiting parallel section.

[0013] The brake pad in this solution includes a brake pad back plate. The installation parts protruding outward on both sides of the brake pad back plate are slidably arranged in the brake track.

[0014] The beneficial effects of the present utility model are as follows: In this technical solution, the metal substrate is bent integrally to form a brake track for accommodating the brake pad installation part and a positioning groove for positioning and cooperating with the caliper, so as to initially position the brake track and the caliper. A limiting boss is formed at the outer end of the surface of the positioning boss. The upper positioning plate of the positioning groove has an upward inclination trend relative to the surface of the positioning boss, so that an acute angle is formed between the upper positioning plate and the metal substrate, and an angle for accommodating the limiting boss is formed between the upper positioning plate and the bottom plate of the positioning groove. The pressing plate at the hollow part of the upper positioning plate is in contact and cooperation with the upper surface of the positioning boss, and the outer end of the pressing plate abuts against the side of the limiting boss to form secondary positioning. This positioning and installation structure is easy to produce and has stable positioning. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] 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.

[0016] Figure 1 Assembly schematic diagram of the brake pad positioning component in Embodiment 1 (only a part of the caliper is shown);

[0017] Figure 2 Structural schematic diagram of the metal substrate and the brake track in Embodiment 1;

[0018] Figure 3 Side view of the metal substrate and the brake track in Embodiment 1;

[0019] Figure 4 Partial structural schematic diagram of the caliper in Embodiment 1;

[0020] Figure 5 For Figure 4 Enlarged view at A in

[0021] In the figure, 1 - metal substrate, 101 - brake track, 102 - positioning groove, 11 - upper limiting plate, 12 - lower limiting plate, 121 - extension plate, 122 - supporting elastic piece, 123 - limiting parallel section, 13 - upper positioning plate, 131 - pressing plate, 14 - side positioning plate, 2 - caliper, 21 - positioning groove, 22 - positioning boss, 221 - limiting boss, 3 - brake pad, 31 - brake pad back plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] In order to make the purpose, technical solutions and advantages of the present utility model clearer, the following will further describe the present utility model in detail in conjunction with the embodiments and the drawings.

[0023] 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 attached drawings. Therefore, the directional and positional terms used are for the purpose of explaining and understanding the present utility model, rather than limiting the protection scope of the present utility model.

[0024] Embodiment 1

[0025] As Figures 1-5 shown, a brake pad positioning assembly includes a caliper 2, a metal substrate 1 mounted on the caliper 2, and a brake track 101 integrally bent from the metal substrate 1. Two left and right positioning units are integrally provided on the metal substrate 1. Each positioning unit includes a positioning groove 102 located above the brake track 101, and the upper limiting plate 11 of the brake track 101 simultaneously serves as the lower positioning plate of the positioning groove 102. The opening direction of the positioning groove 102 is opposite to the opening direction of the brake track 101; a positioning groove 21 and a positioning protrusion 22 are formed on the caliper 2. The outer end of the upper surface of the positioning protrusion 22 protrudes upward to form a limiting protrusion 221 (refer to Figure 5 , it can be understood that the outer end in this solution refers to the end far from the main body part of the caliper). The positioning protrusion 22 extends into the positioning groove 102 on the metal substrate 1, and the brake track 101 is embedded into the positioning groove 21;

[0026] The upper positioning plate 13 of the positioning groove 102 is inclined upward so that the included angle α between it and the metal substrate 1 is an acute angle to make way for the limiting protrusion 221 on the surface of the positioning protrusion 22. The middle part of the upper positioning plate 13 is hollowed out, and a pressing plate 131 extends from the hollowed-out part. The pressing plate 131 is in contact and cooperation with the upper surface of the positioning protrusion 22, and the outer end of the pressing plate 131 abuts against the inner side (the side facing the main body part of the caliper) of the limiting protrusion 221.

[0027] The upper positioning plate 13 of the positioning groove 102 is connected to the bottom plate of the positioning groove. The bottom plate is in contact and cooperation with the outer end surface of the positioning protrusion 22, and a side positioning plate 14 extends from the side of the bottom plate. The side positioning plate 14 is in side positioning cooperation with the positioning protrusion 22.

[0028] The two left and right positioning units are spaced apart by an empty groove, and the side positioning plate 14 is arranged on the side where the two left and right positioning units are close to each other.

[0029] The lower limit plate 12 in the middle of the brake track 101 is hollowed out, and an extension plate 121 extends from the hollowed-out part of the lower limit plate 12. The extension plate 121 includes a supporting elastic piece 122 bent upward. There is a distance between the supporting elastic piece 122 and the upper surface of the lower limit plate 12. The installation part of the brake pad is installed in the brake track and is clamped and positioned by the upward supporting force provided by the supporting elastic piece.

[0030] The outer end of the supporting elastic piece 122 is a supporting parallel section parallel to the lower limit plate 12, and the supporting parallel section of the supporting elastic piece 122 plays a certain guiding role for the brake pad.

[0031] The outer end of the lower limit plate 12 includes an upwardly warped section and a limiting parallel section 123 connected to the outer end of the warped section and parallel to the lower limit plate 12. The parallel section of the lower limit plate plays a further guiding role for the installation part of the brake pad. After the installation part of the brake pad is installed on the supporting parallel section, it presses down on the supporting parallel section. At this time, the installation part of the brake pad just contacts the limiting parallel section.

[0032] The brake pad 3 includes a brake pad back plate 31, and the installation parts protruding outward on both sides of the brake pad back plate 31 can be slidably arranged in the brake track 101.

[0033] 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 positioning assembly, comprising a caliper (2), a metal substrate (1) mounted on the caliper (2), and a brake track (101) integrally bent from the metal substrate (1), characterized in that: On the metal substrate (1), two positioning units, namely a left positioning unit and a right positioning unit, are integrally provided. Each positioning unit includes a braking track (101) and a positioning groove (102) located above the braking track (101). Moreover, the upper limiting plate (11) of the braking track (101) simultaneously serves as the lower positioning plate of the positioning groove (102), and the opening direction of the positioning groove (102) is opposite to that of the braking track (101). On the caliper (2), a positioning groove (21) and a positioning protrusion (22) are formed. The outer end of the upper surface of the positioning protrusion (22) protrudes upward to form a limiting boss (221). The positioning protrusion (22) extends into the positioning groove (102) on the metal substrate (1), and the braking track (101) is embedded into the positioning groove (21). The upper positioning plate (13) of the positioning groove (102) is inclined upward so that the included angle α between it and the metal substrate (1) is an acute angle to make way for the limiting boss (221) on the surface of the positioning protrusion (22). The middle part of the upper positioning plate (13) is hollowed out, and a pressing plate (131) is formed by extending the hollowed-out part. The pressing plate (131) is in contact and cooperation with the upper surface of the positioning protrusion (22), and the outer end of the pressing plate (131) abuts against the inner side of the limiting boss (221).

2. The brake pad positioning assembly according to claim 1, characterized in that: The upper positioning plate (13) of the positioning groove (102) is connected to the bottom plate of the groove of the positioning groove. The bottom plate is in contact and cooperation with the outer end face of the positioning protrusion (22), and a side positioning plate (14) extends from the side of the bottom plate. The side positioning plate (14) is in side positioning cooperation with the positioning protrusion (22).

3. The positioning assembly for a brake pad according to claim 2, characterized in that: The left and right positioning units are arranged at intervals through an empty groove, and the side positioning plate (14) is arranged on the side where the left and right positioning units are close to each other.

4. The positioning assembly for a brake pad according to claim 1, wherein: The middle part of the lower limiting plate (12) of the braking track (101) is hollowed out, and an extension plate (121) extends from the hollowed-out part of the lower limiting plate (12). The extension plate (121) includes a supporting elastic piece (122) bent upward. There is a distance between the supporting elastic piece (122) and the upper surface of the lower limiting plate (12).

5. The positioning assembly for a brake pad according to claim 4, wherein: The outer end of the supporting elastic piece (122) is a supporting parallel section parallel to the lower limiting plate (12).

6. The positioning assembly for a brake pad according to claim 4, wherein: The outer end of the lower limiting plate (12) includes an upwardly warped section and a limiting parallel section (123) parallel to the lower limiting plate (12) connected to the outer end of the upwardly warped section.

7. A brake pad positioning assembly according to claim 1, characterized in that: The brake pad (3) includes a brake pad back plate (31). The installation parts protruding outward on both sides of the brake pad back plate (31) are slidably arranged in the braking track (101).

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