Automobile brake pad convenient to replace
By designing a fixed frame and an insert plate structure driven by an electric push rod, the removal and replacement of automotive brake pads are facilitated, solving the problem of difficult brake pad removal caused by thinning and improving replacement efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG LIANGSHAN NETZSCH AUTO PARTS CO LTD
- Filing Date
- 2025-05-12
- Publication Date
- 2026-06-26
AI Technical Summary
Existing car brake pads become thinner after prolonged use, making them difficult to remove efficiently and affecting replacement efficiency.
A type of automotive brake pad has been designed, comprising a fixed frame, connecting block, slot, connecting strip, spring rod, and electric push rod. It is connected to the caliper via the connecting strip, and the electric push rod drives the moving plate to move. The plate is inserted between the brake pad and the brake caliper piston, pressed into the cavity, reducing friction and loosening the bolts for replacement.
It enables convenient and efficient removal and replacement of automotive brake pads, reduces damage to the brake pad mounting bracket, and improves replacement efficiency.
Smart Images

Figure CN224414205U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive brake pad replacement technology, specifically to an easy-to-replace automotive brake pad. Background Technology
[0002] Automotive brake pads are components of the automotive braking system, typically consisting of a steel plate, an adhesive heat insulation layer, and friction blocks. The steel plate is coated for rust prevention, and the temperature distribution during the coating process can be monitored using an SMT-4 oven temperature tracker to ensure quality. The heat insulation layer is composed of non-heat-conducting materials, while the friction blocks consist of friction materials and adhesives. Different automotive brake pads will have different coefficients of friction due to differences in materials, and will have optimal suitable temperatures and operating temperature ranges.
[0003] According to Chinese Patent Publication No. CN214146364U, "An Easy-to-Replace Automobile Brake Pad", the main feature described is that the mounting blocks on both sides of the brake pad mounting plate and the mounting grooves on both sides of the brake pad body are designed to facilitate the installation of the brake pad body. With the addition of a lifting mechanism, when the brake pad body and brake pad mounting plate are difficult to remove, the brake pad body can be removed by pulling the lifting ring, avoiding damage to the brake pad mounting bracket. The operation is convenient and quick, improving the practicality of the device.
[0004] Common brake pads are usually placed inside the car's brake disc. It is necessary to remove the bolts on the caliper to replace the brake pads. Common calipers have an inspection groove. However, brake pads will become thinner during long-term use, causing the brake caliper piston to press against one side of the brake pad, which affects the removal of the brake pad. Utility Model Content
[0005] In view of the shortcomings of the prior art, this utility model provides an easy-to-replace automotive brake pad to improve the disassembly efficiency of brake pads.
[0006] The technical solution adopted by this utility model to solve the technical problem is as follows: a replaceable car brake pad, including a fixed frame, with connecting blocks fixedly connected to both sides of the fixed frame, slots opened on the connecting blocks, connecting strips inserted into the slots, through holes evenly opened on the connecting strips, spring rods inserted into the through holes, and the spring rods movably inserted into the connecting blocks, electric push rods fixedly connected to the upper and lower sides of the fixed frame, a moving plate fixedly connected to the output end of the electric push rods, an extension block fixedly connected to one side of the moving plate, an adjusting rod threadedly connected to one side of the extension block, an adjusting disc fixedly connected to one end of the adjusting rod, and an insert plate rotatably connected to the side of the adjusting rod away from the adjusting disc via a bearing, a sliding groove opened on one side of the extension block and the moving plate, and one side of the insert plate corresponding to the car brake pad.
[0007] As a preferred technical solution of this utility model, a limiting rod is fixedly connected inside the fixed frame, and the limiting rod is movably inserted into the moving plate. By setting the limiting rod, the stability of the moving plate movement is increased.
[0008] As a preferred technical solution of this utility model, a limiting groove is provided on the moving plate, and a limiting strip contacts the limiting groove. The limiting strip is fixedly connected in the fixed frame. By setting the limiting strip, the stability of the moving plate can be further increased.
[0009] As a preferred technical solution of this utility model, the extension block has a slot on the side away from the moving plate, and a temporary card is inserted into the slot. The temporary card has a recess that corresponds to the adjusting rod. By setting the temporary card, the maximum movement distance of the adjusting rod can be limited, thereby preventing the inserting plate from moving out of the slide groove.
[0010] As a preferred technical solution of this utility model, the insert plate has a right-angled trapezoidal structure, and the side of the insert plate away from the tip has an arc angle, which is located in the slide groove. By setting the arc angle, it is easy for the insert plate to enter and exit the slide groove.
[0011] As a preferred technical solution of this utility model, the insert plate is provided with an adaptation groove evenly on one side. The adaptation groove has a trapezoidal structure. By setting the adaptation groove, the contact surface between the insert plate and the brake pad is reduced, and friction is reduced.
[0012] This utility model has the following advantages: the connecting strip and spring rod connect the fixed frame to the car caliper, and the adjusting rod rotates to insert the clamping plate through the caliper observation hole and connect the car brake pad or brake caliper piston. Then, the electric push rod drives the moving plate to squeeze the brake pad and brake caliper piston, which facilitates the subsequent replacement of the brake pad and improves the replacement efficiency. Attached Figure Description
[0013] Figure 1 This is a three-dimensional structural diagram of a preferred embodiment of the present invention, showing an easily replaceable automotive brake pad.
[0014] Figure 2 This is a three-dimensional sectional view of the movable plate of an automobile brake pad that is easy to replace, according to a preferred embodiment of the present invention.
[0015] Figure 3 This is a side sectional view of the connecting block of an easily replaceable automotive brake pad according to a preferred embodiment of the present invention.
[0016] Explanation of reference numerals in the attached drawings: 1. Fixed frame; 2. Connecting block; 3. Slot; 4. Connecting strip; 5. Spring rod; 6. Electric push rod; 7. Moving plate; 8. Extension block; 9. Adjusting rod; 10. Adjusting disc; 11. Insert plate; 12. Limiting rod; 13. Limiting strip; 14. Slot; 15. Temporary slot; 16. Arc; 17. Adaptive slot. Detailed Implementation
[0017] The present invention will be further described below with reference to the accompanying drawings.
[0018] Please refer to the following: Figure 1-3 The diagram shows a replaceable car brake pad, comprising a fixed frame 1, with connecting blocks 2 fixedly connected to both sides of the fixed frame 1. The connecting blocks 2 have slots 3, into which connecting strips 4 are inserted. A spring rod 5 is inserted into a through hole on the connecting strip 4 to ensure connection between the fixed frame 1 and the car caliper. The connecting strip 4 has evenly spaced through holes, into which spring rods 5 are inserted, movably connecting to the connecting blocks 2. Electric push rods 6 are fixedly connected to both the upper and lower sides of the fixed frame 1, allowing a moving plate 7 to move up and down. The output end of the electric push rod 6 is fixedly connected to the moving plate 7. An extension block 8 is fixedly connected to one side of the moving plate 7, and an adjusting rod 9 is threadedly connected to one side of the extension block 8. Rotating the adjusting rod 9 allows a insert plate 11 to move within a groove. An adjusting disc 10 is fixedly connected to one end of the adjusting rod 9. The side of the adjusting rod 9 away from the adjusting disc 10 is rotatably connected to the insert plate 11 via a bearing. Grooves are formed on one side of both the extension block 8 and the moving plate 7, contacting the insert plate 11. One side of the insert plate 11 corresponds to the car brake pad.
[0019] The fixed frame 1 is fixedly connected to a limiting rod 12, which is movably inserted into the sliding plate 7. By setting the limiting rod 12, the sliding plate 7 can be moved stably.
[0020] The movable plate 7 has a limiting groove, and a limiting strip 13 contacts the limiting groove. The limiting strip 13 is fixedly connected to the fixed frame 1. By setting the limiting strip 13, the stable movement of the movable plate 7 can be further improved.
[0021] The extension block 8 has a slot 14 on the side away from the moving plate 7. A temporary card 15 is inserted into the slot 14. The temporary card 15 has a recess that corresponds to the adjusting rod 9. By setting the temporary card 15, the movement distance of the insert plate 11 can be limited when the temporary card 15 is removed, ensuring that the insert plate 11 will not fall out of the slide. At the same time, when it is necessary to adjust the contact surface between the insert plate 11 and the car brake pad, the temporary card 15 can be removed to increase the movement distance of the insert plate 11, thereby facilitating the flipping of the insert plate 11.
[0022] The insert plate 11 has a right-angled trapezoidal structure. An arc angle 16 is provided on the side of the insert plate 11 away from the tip. The arc angle 16 is located in the slide groove. By setting the arc angle 16, it is easy for the insert plate 11 to enter the slide groove after the contact surface changes.
[0023] The insert plate 11 has an evenly spaced adaptation groove 17 on one side. The adaptation groove 17 has a trapezoidal structure. By setting the adaptation groove 17, the contact surface between the insert plate 11 and the brake pad or brake caliper piston is reduced, thereby reducing friction.
[0024] Working principle: When it is necessary to remove and replace the car brake pads, first use the connecting strip 4 and connecting block 2 to connect the fixing frame 1 with the car caliper. Then, start the electric push rod 6 so that the moving plate 7 corresponds to the brake caliper piston on the bottom side of the brake pad. Rotate the adjusting plate 10 to rotate the adjusting rod 9. At this time, the insert plate 11 is inserted between the brake caliper piston and the brake pad. Then, the electric push rod 6 is extended and retracted to reduce the adhesion between the brake pad and the caliper and press the brake caliper piston into the cavity. Then, remove the bolts on the caliper to loosen and replace the car brake pad.
[0025] The above are merely preferred embodiments of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model.
[0026] All other parts of this utility model that are not described in detail belong to the prior art, and therefore will not be described in detail here.
[0027] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.
Claims
1. A replaceable automotive brake pad, comprising a mounting frame (1), characterized in that, Both sides of the fixed frame (1) are fixedly connected to connecting blocks (2). The connecting blocks (2) have slots (3) and connecting strips (4) are inserted into the slots (3). The connecting strips (4) have through holes evenly distributed. The through holes have spring rods (5) inserted into the through holes. The spring rods (5) are movably inserted into the connecting blocks (2). Both the upper and lower sides of the fixed frame (1) are fixedly connected to electric push rods (6). The output end of the electric push rods (6) is fixedly connected to a moving plate (7). One side of the moving plate (7) is fixedly connected to an extension block (8). One side of the extension block (8) is threadedly connected to an adjusting rod (9). One end of the adjusting rod (9) is fixedly connected to an adjusting disc (10). The side of the adjusting rod (9) away from the adjusting disc (10) is rotatably connected to a plug plate (11) through a bearing. Both the extension block (8) and the moving plate (7) have sliding grooves on one side. One side of the plug plate (11) corresponds to the car brake pad.
2. A brake pad for a vehicle as claimed in claim 1, wherein, A limiting rod (12) is fixedly connected inside the fixed frame (1), and the limiting rod (12) is movably inserted into the sliding plate (7).
3. A brake pad for a vehicle according to claim 2, wherein A limiting groove is provided on the moving plate (7), and a limiting strip (13) contacts the limiting groove. The limiting strip (13) is fixedly connected to the fixed frame (1).
4. The easily replaceable automotive brake pad of claim 1 wherein, The extension block (8) has a slot (14) on the side away from the moving plate (7), and a temporary card plate (15) is inserted into the slot (14). The temporary card plate (15) has a recess that corresponds to the adjusting rod (9).
5. The replaceable automotive brake pad of claim 1 wherein, The insert plate (11) has a right-angled trapezoidal structure, and an arc corner (16) is provided on the side of the insert plate (11) away from the tip. The arc corner (16) is located in the groove.
6. A brake pad for a vehicle according to claim 5, wherein The insert plate (11) has uniformly provided adaptation grooves (17) on one side, and the adaptation grooves (17) have a trapezoidal structure.