Disc brake convenient for gap adjustment

Abstract

The utility model discloses a disc brake convenient for gap adjustment, and relates to the technical field of disc brakes. The disc brake comprises a disc brake shell and a brake pad, cleaning assemblies are arranged on the left side and the right side of the disc brake shell, and an adjusting assembly is arranged in the center of the disc brake shell. The adjusting assembly is arranged, specifically, during use, a brake is stepped down to output a signal to a disc brake, a motor drives a threaded rod to rotate, the threaded rod rotates to drive a first sliding block to move leftwards, the first sliding block drives a first connecting rod to rotate leftwards with a first rotating shaft as the axis, and the top of the right side of the first connecting rod is lifted; then the top plate and the brake pad are pushed to move in the direction of the brake disc, the brake disc is braked under the action of the hydraulic pump, the gap between the brake pad and the brake disc can be rapidly adjusted, the situation that the brake distance is prolonged due to the fact that the distance between the brake pad and the brake disc is too long is prevented, and the safety of a driver in the driving process is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of disc brakes, in particular to a disc brake which is convenient for gap adjustment. Background Art

[0002] Disc brakes are a common automotive brake component. The brake disc is fixed to the wheel and rotates with the wheel. When the user wants to stop the car, they step on the brake, causing the car system to send a signal to the brake. After receiving the signal, the brake controls the calipers on both sides of the brake disc to move closer together, clamping the brake disc and stopping the rotation of the brake disc through friction.

[0003] However, after long-term use, the surfaces of the brake pads and calipers of disc brakes will wear out due to long-term friction, causing the gap between the disc brake surface and the calipers on both sides to become larger and larger. This will cause the calipers to take longer to move to the sides of the brake disc and work on it when the user steps on the brake, which will extend the braking distance of the car and increase the driving risk for the driver. In order to solve this problem, we have proposed a disc brake that is easy to adjust the gap. Utility Model Content

[0004] The present invention aims to provide a disc brake that facilitates clearance adjustment. The invention provides an adjustment assembly. Specifically, when the brake is stepped on during use, a signal is output to the disc brake, causing the motor to drive the threaded rod to rotate. The rotation of the threaded rod drives the slider 1 to move to the left. The slider 1 drives the connecting rod 1 to rotate to the left about the rotating shaft 1, lifting the top of the right side of the connecting rod 1. Then, the top plate and the dynamic brake pad are pushed toward the brake disc. The brake disc is stopped in cooperation with the action of the hydraulic pump. The clearance between the brake pad and the brake disc can be quickly adjusted to prevent the distance between the brake pad and the brake disc from being too long, which leads to a longer braking distance. This improves the safety of the driver during driving. The invention solves the problem that the existing disc brake will cause the surfaces of the brake pad and the caliper to wear due to long-term friction after long-term use, resulting in an increasing gap between the surface of the disc brake and the calipers on both sides. This will cause the calipers to take longer to move to both sides of the brake disc and work when the user steps on the brake, which will extend the braking distance of the vehicle and increase the driving risk for the driver.

[0005] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0006] The utility model is a disc brake for facilitating clearance adjustment, comprising a disc brake housing and a brake pad, cleaning assemblies being provided on both the left and right sides of the disc brake housing, and an adjustment assembly being provided at the center of the disc brake housing;

[0007] The top of the top plate is fixedly connected to the two sliding bars, and the top of the sliding bar is fixedly connected to the two sliding bars, and the sliding bar is slidably connected to the two sliding bars, and the side of the slider closes and is rotatably connected to the right top of the link second. By moving the slider one, the link one and the link one can drive the link one and the link to rotate, thereby shortening the time required for adjusting the gap between the brake pad and the brake disc, so that the brake pad and the brake disc can quickly approach each other, reducing the braking distance of the brake and improving the braking performance of the brake.

[0008] Furthermore, the cleaning component includes two rotating shafts 2 and two fixed blocks 2, the two rotating shafts 2 are arranged in a horizontal mirror image, the two rotating shafts 2 extend outward through the left side of the disc brake housing and are rotatably connected, the bottoms of the two rotating shafts 2 are fixedly connected with roller brushes, the two fixed blocks 2 are fixedly connected to the left and right sides of the disc brake housing respectively, the two fixed blocks 2 are fixedly connected to bracket 2 on one side close to the top of the disc brake housing, the bracket 2 is fixedly connected to fixed block 1 on the side away from fixed block 2, the bottom of the fixed block 1 is fixedly connected with a scraper, the scraper is fixedly connected to bracket 1 on the side close to the disc brake housing, and the bracket 1 is fixedly connected to the disc brake housing on the side away from the scraper, which can clean contaminants attached to the brake disc, prevent contaminants from entering the inside of the disc brake housing and causing disc brake failure, and ensure the driver's life safety while driving.

[0009] Furthermore, a vertical plate is fixedly connected to the inner center of the bottom of the shell, and the left side of the vertical plate is fixedly connected to the motor, and a threaded hole is opened on the vertical plate, and a threaded rod is rotatably connected in the threaded hole of the vertical plate, the left side of the threaded rod is fixedly connected to the output end of the motor, and the right side of the threaded rod is rotatably connected to the threaded rod limiting protrusion, the bottom of the threaded rod limiting protrusion is fixedly connected to the inner wall of the shell, and the threaded rod is threadedly connected to the slider one, and the left and right sides of the slider two are fixedly connected to the slider limiting protrusions, and the bottom of the slider limiting protrusion is fixedly connected to the inner wall of the bottom of the shell. When the driver steps on the brake, the computer will send a signal to the adjusting component, and the adjusting component will start the motor after receiving the signal. The motor will drive the threaded rod to rotate, and drive the slider one to slide to the left along the slider two on both sides of the bottom through the thread.

[0010] Furthermore, a brake disc is arranged between the two brake pads, and a hydraulic pump is fixedly connected to the left and right sides of the disc brake housing. A hydraulic push rod is slidably connected to the side of the hydraulic pump close to the outer wall of the disc brake housing. When the driver steps on the brake, the computer will send a signal to the disc brake, and the disc brake will transmit the signal to the hydraulic pump after receiving the signal, and the hydraulic pump will push the hydraulic push rod to move through hydraulic pressure after receiving the signal.

[0011] Furthermore, the bottom of the housing is fixedly connected to the hydraulic push rod, and a number of special-shaped protrusions are fixedly connected to the left and right sides of the housing. Special-shaped grooves are provided on both sides of the disc brake housing. The special-shaped grooves of the disc brake housing match the special-shaped protrusions of the housing, which can prevent the housing from causing the brake pad to shake when moving, affecting the friction effect between the brake pad and the brake disc, and further improving the braking performance of the disc brake.

[0012] Furthermore, the top and bottom of the shell are both provided with an outward convex structure, and the bottom of the shell is fixedly connected to the output end of the hydraulic push rod. The hydraulic push rod pushes the brake pad to move toward the brake disc. When the brake pad contacts the brake disc, the brake pad will grab the brake disc and stop the rotation of the brake disc through friction, thereby stopping the displacement of the tire in a moving state.

[0013] Furthermore, the front and rear sides of the protruding structure on the top of the shell are fixedly connected with a plurality of protrusions 1, and the side of the protrusion 1 close to the brake pad is fixedly connected with a spring, and the side of the spring close to the brake pad is fixedly connected to the brake pad. The setting of the spring can allow the brake pad to move to a certain extent, and can also absorb vibration to prevent vibration from interfering with the working state of the brake pad.

[0014] Furthermore, a convex ring is fixedly connected to the top of the shell, the top plate is slidably connected to the inner wall of the shell, the top of the shell is fixedly connected to the brake pad, and the size of the top plate is larger than the inner diameter of the convex ring on the top of the shell. While allowing the top plate to move inside the shell, it can also prevent the top plate from excessively moving and causing the top plate to fall off with the brake pad, affecting the operation of the disc brake, thereby ensuring the safety of the driver during driving.

[0015] The utility model has the following beneficial effects:

[0016] 1. The utility model is provided with an adjustment component. Specifically, when the brake is stepped on during use, a signal is output to the disc brake, so that the motor drives the threaded rod to rotate. When the threaded rod rotates, it drives the slider 1 to move to the left. The slider 1 drives the connecting rod 1 to rotate to the left with the rotating shaft 1 as the axis, so that the top of the right side of the connecting rod 1 is lifted, and then the top plate and the dynamic brake pad are pushed toward the brake disc, and the brake disc is stopped by the action of the hydraulic pump. The gap between the brake pad and the brake disc can be quickly adjusted to prevent the distance between the brake pad and the brake disc from being too long, which leads to an extension of the braking distance, thereby improving the safety of the driver while driving.

[0017] 2. The utility model sets a cleaning component. Specifically, when the brake disc rotates, the brake disc will contact the roller brush and the scraper. The rotation of the brake disc will drive the roller brush to rotate. The roller brush rotates and contacts the surfaces on both sides of the brake disc, removing the pollutants attached to the brake disc. The setting of this structure can prevent pollutants such as mud and sand from entering the disc brake, causing the disc brake to be blocked and affecting the braking performance, thereby improving the safety of the driver while driving.

[0018] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the bottom structure of the disc brake of the utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the hydraulic pump of the utility model;

[0023] Figure 4 This is a schematic cross-sectional view of the housing of the utility model;

[0024] Figure 5 This is a schematic diagram of the bottom structure of the top plate of the utility model;

[0025] Figure 6 This is a schematic diagram of the roller brush structure of the utility model.

[0026] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0027] 1. Disc brake housing; 11. Hydraulic pump; 12. Hydraulic push rod; 13. Brake pad; 14. Brake disc; 2. Adjustment assembly; 21. Housing; 221. Bump 1; 222. Spring; 23. Top plate; 231. Slider 1; 241. Slider 2; 242. Slider limit bump; 243. Limit block; 2441. Vertical plate; 2442. Threaded rod; 2443. Threaded rod limit bump; 2444. Motor; 251. Slider 1; 252. Connecting rod 1; 253. Rotating shaft 1; 254. Connecting rod 2; 255. Slider 2; 3. Cleaning assembly; 311. Rotating shaft 2; 312. Roller brush; 321. Scraper; 322. Fixing block 1; 323. Fixing block 2; 324. Bracket 1; 325. Bracket 2. DETAILED DESCRIPTION

[0028] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] See also Figure 1-6 As shown, the present invention is a disc brake for facilitating clearance adjustment, comprising a disc brake housing 1 and a brake pad 13. Cleaning assemblies 3 are provided on the left and right sides of the disc brake housing 1, and an adjustment assembly 2 is provided at the center of the disc brake housing 1.

[0030] The adjusting assembly 2 includes two connecting rods 254 and two connecting rods 1 252. Circular holes are opened at the centers of the connecting rods 254 and 1 252. The circular holes of the connecting rods 254 and 1 252 are rotatably connected with the rotating shaft 1 253. The sides of the left bottom of the two connecting rods 254 close to each other are rotatably connected with the limit block 243. The bottom of the limit block 243 is fixedly connected with the shell 21. Two sliding rods 241 are provided at the bottom of the inner wall of the shell 21. The sliding rod 241 is slidably connected with the slider 1 251. The side of the slider 1 251 close to the inner wall of the shell 21 is rotatably connected to the bottom right side of the connecting rod 1 252. The top left side of the connecting rod 1 252 is rotatably connected to the top plate 23. The top of the top plate 23 is fixedly connected with two sliding rods 1 231. The sliding rod 1 231 is slidably connected with the slider 2 255. The side of the two 255 that is close to each other is rotatably connected to the top right side of the connecting rod 254. By setting the adjustment component 2, specifically when the brake is stepped on during use, a signal is output to the disc brake, so that the motor 2444 drives the threaded rod 2442 to rotate. When the threaded rod 2442 rotates, it drives the slider 1 251 to move to the left. The slider 1 251 drives the connecting rod 1 252 to rotate to the left with the rotating shaft 1 253 as the axis, so that the top right side of the connecting rod 1 252 is lifted, and then the top plate 23 and the dynamic brake pad 13 are pushed toward the brake disc 14, and the brake disc 14 is stopped by the action of the hydraulic pump 11. The gap between the brake pad 13 and the brake disc 14 can be quickly adjusted to prevent the distance between the brake pad 13 and the brake disc 14 from being too long, resulting in an extension of the braking distance, thereby improving the safety of the driver during driving.

[0031] The cleaning component 3 includes two rotating shafts 2 311 and two fixed blocks 2 323. The two rotating shafts 2 311 are arranged in a horizontal mirror image. The two rotating shafts 2 311 extend outward from the left side of the disc brake housing 1 and are rotatably connected. The bottoms of the two rotating shafts 2 311 are fixedly connected to roller brushes 312. The two fixed blocks 2 323 are fixedly connected to the left and right sides of the disc brake housing 1 respectively. The two fixed blocks 2 323 are fixedly connected to the bracket 2 325 on one side close to the top of the disc brake housing 1. The bracket 2 325 is fixedly connected to the fixed block 1 322 on the side away from the fixed block 2 323. The bottom of the fixed block 1 322 is fixedly connected to a scraper 321. The scraper 321 is close to the disc brake housing. A bracket 324 is fixedly connected to one side of the brake housing 1, and the side of the bracket 324 away from the scraper 321 is fixedly connected to the disc brake housing 1. By setting the cleaning component 3, specifically when the brake disc 14 rotates, the brake disc 14 will contact the roller brush 312 and the scraper 321. The rotation of the brake disc 14 will drive the roller brush 312 to rotate. The roller brush 312 rotates and contacts the surfaces on both sides of the brake disc 14 to remove the pollutants attached to the brake disc 14. The scraper 321 will scrape off the pollutants attached to the brake disc 14. The setting of this structure can prevent pollutants such as mud and sand from entering the disc brake, causing the disc brake to be blocked and affecting the braking performance, thereby improving the safety of the driver while driving.

[0032] A vertical plate 2441 is fixedly connected to the inner center of the bottom of the shell 21, and a motor 2444 is fixedly connected to the left side of the vertical plate 2441. A threaded hole is opened on the vertical plate 2441, and a threaded rod 2442 is rotatably connected in the threaded hole of the vertical plate 2441. The left side of the threaded rod 2442 is fixedly connected to the output end of the motor 2444, and the right side of the side threaded rod 2442 is rotatably connected to the threaded rod limiting protrusion 2443. The bottom of the threaded rod limiting protrusion 2443 is fixedly connected to the inner wall of the shell 21, and the threaded rod 2442 is threadedly connected to the slider 1 251. The left and right sides of the slider 241 are fixedly connected with the slider limiting protrusion 242, and the bottom of the slider limiting protrusion 242 is fixedly connected to the inner wall of the bottom of the shell 21.

[0033] A brake disc 14 is provided between the two brake pads 13 . A hydraulic pump 11 is fixedly connected to the left and right sides of the disc brake housing 1 . A hydraulic push rod 12 is slidably connected to the side of the hydraulic pump 11 close to the outer wall of the disc brake housing 1 .

[0034] The bottom of the housing 21 is fixedly connected to the hydraulic push rod 12, and a number of special-shaped protrusions are fixedly connected to the left and right sides of the housing 21. Special-shaped grooves are opened on both sides of the disc brake housing 1, and the special-shaped grooves of the disc brake housing 1 match the special-shaped protrusions of the housing 21.

[0035] The top and bottom of the housing 21 are both provided with convex structures, and the bottom of the housing 21 is fixedly connected to the output end of the hydraulic push rod 12.

[0036] The front and rear sides of the protruding structure on the top of the shell 21 are fixedly connected with several protrusions 221, and the side of the protrusion 221 close to the brake pad 13 is fixedly connected with a spring 222, and the side of the spring 222 close to the brake pad 13 is fixedly connected to the brake pad 13.

[0037] A convex ring is fixedly connected to the top of the housing 21 , the top plate 23 is slidably connected to the inner wall of the housing 21 , and the top of the housing 21 is fixedly connected to the brake pad 13 .

[0038] A specific application of this embodiment is as follows: when the driver steps on the brake, the computer sends a signal to the disc brake. After receiving the signal, the disc brake transmits the signal to the hydraulic pump 11 and the adjustment component 2, so that the hydraulic pump 11 and the adjustment component 2 enter the working mode at the same time. After receiving the signal, the hydraulic pump 11 pushes the hydraulic push rod 12 to move by hydraulic pressure. After receiving the signal, the adjustment component 2 starts the motor 2444. The motor 2444 drives the threaded rod 2442 to rotate, and drives the slider 1 251 to slide to the left along the slider 2 241 on both sides of the bottom through the thread. The slider 1 251 pushes the connecting rod 1 2 52 rotates clockwise around the rotating shaft 1 253 as the center, causing the top left end of the connecting rod 1 252 to gradually rise, pushing the top plate 23 on the top to move toward the surface of the brake disc 14. The movement of the top plate 23 drives the slider 2 255 on the slider 1 231 to move to the left. A convex ring is provided on the top of the housing 21 to prevent the top plate 23 from falling off. This arrangement can shorten the time required to adjust the gap between the brake pad 13 and the brake disc 14, allowing the brake pad 13 and the brake disc 14 to quickly approach each other, reducing the braking distance, improving the braking performance, and ensuring the driver's life safety while driving.

[0039] After long-term operation, the wheels will inevitably be contaminated with mud, sand and dust, causing disc brake contamination and causing pollutants to adhere to the surface of the brake disc 14. This will cause the brake pad 13 to be unable to effectively rub the brake disc 14 and cause the brake disc 14 to stop rotating. In addition, during the friction process, the pollutants on the surface of the brake disc 14 will also stick to the brake pad 13, further reducing the performance of the brake pad 13 and the friction effect between the brake pad 13 and the brake disc 14. This will affect the braking effect of the disc brake and increase the driving risk for the driver. In addition, when the brake disc 14 rotates, it is easy to throw pollutants such as mud and sand into the inside of the disc brake housing 1, causing the disc brake to be blocked. This will also affect the braking performance of the disc brake. Therefore, cleaning components 3 are provided at the left and right ends of the disc brake housing 1. When the brake disc 14 rotates, the brake disc 14 drives the roller brush 312 of the rotating shaft 2 311 to rotate. The rotation of the roller brush 312 can sweep away the mud and sand attached to the surface of both sides of the brake disc 14. The scrapers 321 provided at both ends of the disc brake housing 1 can also scrape off the contaminants attached to the brake disc 14 when the brake disc 14 rotates. This arrangement can clean the contaminants attached to the brake disc 14, prevent the contaminants from entering the interior of the disc brake housing 1 and causing disc brake failure, and ensure the driver's life safety while driving.

[0040] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0041] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. These preferred embodiments do not exhaust all details, nor do they limit the present invention to the specific embodiments described. Obviously, numerous modifications and variations are possible based on the teachings of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art of disc brake technology to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A disc brake for facilitating clearance adjustment, comprising a disc brake housing (1) and a brake pad (13), wherein a cleaning assembly (3) is provided on both the left and right sides of the disc brake housing (1), and an adjustment assembly (2) is provided at the center of the disc brake housing (1), characterized in that ； The adjustment assembly (2) includes two connecting rods (254) and two connecting rods (252). Circular holes are provided at the centers of the connecting rods (254) and the connecting rods (252). A rotating shaft (253) is rotatably connected in the circular holes of the connecting rods (254) and the connecting rods (252). The sides of the left bottoms of the two connecting rods (254) that are close to each other are rotatably connected to the limiting blocks (243). The bottoms of the limiting blocks (243) are fixedly connected to the housing (21). The bottom of the inner wall of the housing (21) is provided with two sliding rods (253). (241), the sliding rod 2 (241) is slidably connected to a sliding block 1 (251), the side of the sliding block 1 (251) close to the inner wall of the shell (21) is rotatably connected to the bottom right side of the connecting rod 1 (252), the top left side of the connecting rod 1 (252) is rotatably connected to the top plate (23), the top of the top plate (23) is fixedly connected to two sliding rods 1 (231), the sliding block 2 (255) is slidably connected to the sliding block 1 (231), and the side of the sliding block 2 (255) close to each other is rotatably connected to the top right side of the connecting rod 2 (254).

2. The disc brake for facilitating clearance adjustment according to claim 1, characterized in that: The cleaning assembly (3) comprises two rotating shafts (311) and two fixed blocks (323). The two rotating shafts (311) are arranged in a horizontal mirror image. The two rotating shafts (311) extend outwardly through the left side of the disc brake housing (1) and are rotatably connected. The bottoms of the two rotating shafts (311) are fixedly connected with a roller brush (312). The two fixed blocks (323) are fixedly connected to the left and right sides of the disc brake housing (1) respectively. The two fixed blocks (323) are close to the left and right sides of the disc brake housing (1). A second bracket (325) is fixedly connected to a side near the top of the disc brake housing (1); a first fixed block (322) is fixedly connected to a side of the second bracket (325) away from the second fixed block (323); a scraper (321) is fixedly connected to a bottom of the first fixed block (322); a first bracket (324) is fixedly connected to a side of the scraper (321) near the disc brake housing (1); and a side of the first bracket (324) away from the scraper (321) is fixedly connected to the disc brake housing (1).

3. The disc brake with easy clearance adjustment according to claim 2, characterized in that: A vertical plate (2441) is fixedly connected to the inner center of the bottom of the shell (21), and a motor (2444) is fixedly connected to the left side of the vertical plate (2441). A threaded hole is opened on the vertical plate (2441), and a threaded rod (2442) is rotatably connected in the threaded hole of the vertical plate (2441). The left side of the threaded rod (2442) is fixedly connected to the output end of the motor (2444), and the right side of the threaded rod (2442) is rotatably connected to a threaded rod limiting protrusion (2443). The bottom of the threaded rod limiting protrusion (2443) is fixedly connected to the inner wall of the shell (21). The threaded rod (2442) is threadedly connected to the slider 1 (251). The left and right sides of the slider 2 (241) are fixedly connected to the slider limiting protrusion (242), and the bottom of the slider limiting protrusion (242) is fixedly connected to the inner wall of the bottom of the shell (21).

4. The disc brake with easy clearance adjustment according to claim 2, characterized in that: A brake disc (14) is provided between the two brake pads (13), and a hydraulic pump (11) is fixedly connected to the left and right sides of the disc brake housing (1), and a hydraulic push rod (12) is slidably connected to the side of the hydraulic pump (11) close to the outer wall of the disc brake housing (1).

5. The disc brake with easy clearance adjustment according to claim 3, characterized in that: The bottom of the housing (21) is fixedly connected to the hydraulic push rod (12), and a plurality of special-shaped protrusions are fixedly connected to the left and right sides of the housing (21). Special-shaped grooves are provided on both sides of the disc brake housing (1), and the special-shaped grooves of the disc brake housing (1) match the special-shaped protrusions of the housing (21).

6. The disc brake with easy clearance adjustment according to claim 4, characterized in that: The top and bottom of the housing (21) are both provided with convex structures, and the bottom of the housing (21) is fixedly connected to the output end of the hydraulic push rod (12).

7. The disc brake with easy clearance adjustment according to claim 1, characterized in that: The front and rear sides of the protruding structure on the top of the housing (21) are fixedly connected to a plurality of protrusions (221); a side of the protrusion (221) close to the brake pad (13) is fixedly connected to a spring (222); a side of the spring (222) close to the brake pad (13) is fixedly connected to the brake pad (13).

8. The disc brake with easy clearance adjustment according to claim 1, characterized in that: The top of the housing (21) is fixedly connected to a convex ring, the top plate (23) is slidably connected to the inner wall of the housing (21), and the top of the housing (21) is fixedly connected to the brake pad (13).

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