Automobile brake caliper assembly
By using a steel backing to position and engage with the brake pads in the automotive brake caliper, and by utilizing the design of a convex push block and a positioning rod, the problems of unstable brake pad installation and insufficient sealing performance are solved, thus achieving stable installation of the brake pads and improving their sealing performance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WENZHOU SAIBAO AUTO PARTS CO LTD
- Filing Date
- 2025-08-20
- Publication Date
- 2026-07-03
AI Technical Summary
Existing automotive brake calipers suffer from unstable brake pad installation, inconvenient rebound, insufficient sealing performance, and a simplistic hydraulic mechanism.
The brake pads are positioned and snapped together with a steel backing and secured with bolts. The design, combined with a convex push block and positioning rod, ensures stable installation and rebound of the brake pads. A sealing ring is used to clamp and compress the pads to improve sealing performance.
It achieves stable installation and firm fixation of brake pads, facilitates easy rebound, ensures stable connection of guide channels, and improves the sealing performance of the joint.
Smart Images

Figure CN224453477U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive brake caliper assemblies, and more specifically, to an automotive brake caliper assembly. Background Technology
[0002] Brake calipers are key components in a car's braking system, primarily functioning to slow down, stop, or maintain a stopped state of the moving wheels. Brake calipers are typically used in disc brake systems. They receive hydraulic pressure from the master cylinder, pushing the brake pads into contact with the brake disc, generating friction and thus braking the vehicle. The brake caliper contains critical components such as pistons, piston separators, and dust separators. When the driver presses the brake pedal, brake fluid transmits hydraulic pressure through the brake lines to the pistons inside the caliper. The pistons expand outward, pushing the brake pads to clamp the brake disc, generating friction and braking torque, thereby slowing down or stopping the vehicle.
[0003] In the prior art, such as the authorized announcement number CN215805903U, this utility model relates to the field of brake caliper technology, and in particular to an automotive brake caliper assembly, including a brake caliper housing, the brake caliper housing including a first caliper housing and a second caliper housing, each of the first caliper housing and the second caliper housing having mounting holes on their opposite surfaces, and each mounting hole having a circular piston mounted on it, the end face of the circular piston having a mounting bracket, and a friction block being mounted on the mounting bracket; the friction block includes a heat dissipation surface and a connecting surface that is fitted onto the mounting bracket, a heat dissipation layer being provided between the heat dissipation surface and the connecting surface; a friction layer with the same diameter as the circular piston is provided in the middle of the heat dissipation surface, the end face of the friction layer slightly exceeding the end face of the heat dissipation surface; heat dissipation grooves are provided on the friction layer, and a plurality of heat dissipation holes are provided on the heat dissipation surface to cooperate with the heat dissipation grooves for heat dissipation. During braking, the heat dissipation grooves and heat dissipation holes provided on the friction block can dissipate heat in a timely manner, thereby avoiding damage to the friction block and improving friction performance;
[0004] In the aforementioned patent, the hydraulic drive mechanism uses circular brake pads, which are small in size and have low friction. The brake pads are not easily installed, and the built-in hydraulic mechanism and rebound mechanism are simple, making rebound inconvenient. Furthermore, at the joint, the oil passages are squeezed together to allow the left and right caliper seats to communicate, and the sealing performance at the joint needs to be improved. Utility Model Content
[0005] To address the problems existing in the prior art, the purpose of this utility model is to provide an automotive brake caliper assembly. By using a steel backing to position and engage with the brake pads, and then fixing them with bolts, the brake pads are easy and secure to install. The convex push block can be positioned by four built-in positioning rods, and four springs provide spring-back compression, making spring-back convenient. The guide channel is easy to connect, and a positioning protrusion is provided for snapping and positioning. The sealing ring clamps and compresses to seal, improving the sealing performance of the connection.
[0006] To solve the above problems, the present invention adopts the following technical solution.
[0007] An automotive brake caliper assembly includes a first automotive brake caliper seat and a second automotive brake caliper seat. The inner sides of the first and second automotive brake caliper seats are provided with sliding grooves, within which a convex push block is slidably connected. A steel back and a brake pad are fixed to the outer end of the convex push block. The brake pad and the steel back are fixed to the outer surface of the convex push block by bolts. A positioning protrusion is provided on the back of the brake pad. A positioning rod is fixed to the inner surface of the sliding grooves of the first and second automotive brake caliper seats. The outer surface of the convex push block is sleeved on the outer surface of the positioning rod. A spring is fitted onto the outer surface of the rod. An oil inlet is provided at the outer end of the first automotive brake caliper seat. Guide channels are provided on the inner sides of the first and second automotive brake caliper seats. The outer surface of the brake pad is provided with a grid-like anti-slip groove. The brake pad is installed conveniently and securely by using a steel backing to position and snap onto the brake pad, and then fixing it with bolts. The convex push block can be positioned by the four built-in positioning rods, and the four springs can rebound and compress, making rebound convenient. The guide channel is easy to connect, and a positioning protrusion is provided to snap into the positioning. The sealing ring clamps and compresses to seal, improving the sealing performance of the connection.
[0008] Furthermore, the inner end of the first automotive brake caliper seat is provided with a positioning protrusion, which is engaged with the inner surface of the second automotive brake caliper seat. The guide channel of the second automotive brake caliper seat is provided with a groove, and its positioning protrusion is engaged with the groove for positioning.
[0009] Furthermore, a sealing ring is clamped between the positioning protrusion and the groove, and the sealing ring is made of rubber.
[0010] Furthermore, the four corners of the outer end of the convex push block are provided with through holes, and the positioning rods are distributed in the four corners of the sliding grooves of the first and second automobile brake caliper seats.
[0011] Furthermore, the brake pad has positioning protrusions at its upper and lower ends, and positioning grooves on the surface of the steel backing, with the positioning protrusions engaging with the inner surface of the positioning grooves.
[0012] Furthermore, the outer surface of the convex pusher is closely fitted to the inner surface of the groove of the first and second automotive brake caliper seats.
[0013] Furthermore, the left and right sets of brake pads are fixed to the outer surface of the steel backing, and each set of brake pads is fixed by two bolts.
[0014] Compared with existing technologies, the advantages of this utility model are:
[0015] (1) By using steel back and brake pad positioning and clamping, and then fixing with bolts, the brake pad is easy and firm to install. The convex push block can be positioned by the four built-in positioning rods, and the four springs can rebound and squeeze, making rebound convenient. The guide hole is easy to connect, and a positioning protrusion is set to be inserted and positioned. The sealing ring clamps and squeezes to seal, improving the sealing performance of the connection. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0017] Figure 2 This is a schematic cross-sectional view of the overall structure of this utility model;
[0018] Figure 3 This is a first schematic diagram showing the distribution relationship between the brake pads and the convex push block of this utility model;
[0019] Figure 4 This is a second schematic diagram showing the distribution relationship between the brake pads and the convex push block of this utility model;
[0020] Figure 5 This is a third schematic diagram showing the distribution relationship between the brake pads and the convex push block of this utility model.
[0021] Explanation of the labels in the diagram:
[0022] 1 First automotive brake caliper seat, 2 Second automotive brake caliper seat, 3 Convex push block, 4 Steel back, 5 Brake pad, 50 Positioning protrusion, 6 Bolt, 8 Positioning rod, 9 Spring, 10 Oil inlet, 11 Guide channel, 12 Positioning protrusion, 13 Sealing ring, 30 Through hole. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example 1:
[0024] Please see Figure 1-5A type of automotive brake caliper assembly includes a first automotive brake caliper seat 1 and a second automotive brake caliper seat 2. The inner sides of the first and second automotive brake caliper seats 1 and 2 are provided with sliding grooves. A convex push block 3 is slidably connected within the sliding grooves. A steel back 4 and a brake pad 5 are fixed to the outer end of the convex push block 3. The brake pad 5 and the steel back 4 are fixed to the outer surface of the convex push block 3 by bolts 6. A positioning protrusion 50 is provided on the back of the brake pad 5. A positioning rod 8 is fixed to the inner surface of the sliding grooves of the first and second automotive brake caliper seats 1 and 2. The outer surface of the convex push block 3 is sleeved on the outer surface of the positioning rod 8. A spring 9 is sleeved on the outer surface of the positioning rod 8. An oil inlet 10 is provided at the outer end of the first automotive brake caliper seat 1. A guide channel 11 is provided on the inner side of the first automotive brake caliper seat 1 and the second automotive brake caliper seat 2. A grid-like anti-slip groove is provided on the outer surface of the brake pad 5. The brake pad is installed conveniently and firmly by using a steel back to position and snap it with the brake pad, and then fixing it with bolts. The convex push block can be positioned by the four built-in positioning rods, and the four springs can rebound and squeeze, making rebound convenient. The guide channel is easy to connect, and a positioning protrusion is provided to snap into the positioning. The sealing ring clamps and squeezes to seal, improving the sealing performance of the connection.
[0025] The inner end of the first automobile brake caliper seat 1 is provided with a positioning protrusion 12, which is engaged with the inner surface of the second automobile brake caliper seat 2. The guide channel 11 of the second automobile brake caliper seat 2 is provided with a groove, and the positioning protrusion 12 is engaged in the groove for positioning.
[0026] A sealing ring 13 is clamped between the positioning protrusion 12 and the groove. The sealing ring 13 is made of rubber ring material to improve sealing performance.
[0027] The four corners of the outer end of the convex push block 3 are provided with through holes 30. The positioning rods 8 are distributed in the four corners of the sliding groove of the first automobile brake caliper seat 1 and the second automobile brake caliper seat 2. Four sets of positioning rods 8 are provided, and the convex push block 3 can be sleeved on the positioning rod 8 and slide. Four sets of springs 9 rebound and squeeze, making squeezing convenient and the rebound squeezing stable.
[0028] The upper and lower ends of the brake pad 5 are provided with positioning protrusions 50, and the surface of the steel back is provided with positioning grooves. The positioning protrusions 50 are engaged with the inner surface of the positioning grooves.
[0029] The outer surface of the convex pusher 3 is tightly attached to the inner surface of the groove of the first automobile brake caliper seat 1 and the second automobile brake caliper seat 2; the left and right sets of brake pads 5 are fixed to the outer surface of the steel back 4 and each set of brake pads 5 is fixed by two bolts 6.
[0030] In use, a sliding groove is provided on the inner side of the first automotive brake caliper seat 1 and the second automotive brake caliper seat 2. A convex push block 3 is slidably connected in the sliding groove. A steel back 4 and a brake pad 5 are fixed to the outer end of the convex push block 3. The brake pad 5 and the steel back 4 are fixed to the outer surface of the convex push block 3 by bolts 6. A positioning protrusion 50 is provided on the back of the brake pad 5. Positioning protrusions 50 are provided at the upper and lower ends of the brake pad 5. A positioning groove is provided on the surface of the steel back. The positioning protrusion 50 is engaged with the inner surface of the positioning groove. The left and right sets of brake pads 5 are fixed to the outer surface of the steel back 4, and each set of brake pads 5 is fixed by two bolts 6. The fixing is firm and stable, and the installation is convenient and secure. The outer surface of the brake pad 5 is provided with a grid-like anti-slip groove to increase friction and improve braking effect.
[0031] Furthermore, an oil inlet 10 is provided at the outer end of the first automotive brake caliper seat 1, and a guide channel 11 is provided on the inner side of the first automotive brake caliper seat 1 and the second automotive brake caliper seat 2. A positioning protrusion 12 is provided at the inner end of the first automotive brake caliper seat 1, and the positioning protrusion 12 is engaged with the inner surface of the second automotive brake caliper seat 2. A groove is provided at the guide channel 11 of the second automotive brake caliper seat 2, and the positioning protrusion 12 is engaged in the groove for positioning. A sealing ring 13 is clamped between the positioning protrusion 12 and the groove. The sealing ring 13 is made of rubber ring material, which improves the sealing performance and ensures stable connection. The guide channel 11 improves the sealing performance when guiding oil.
Claims
1. A motor vehicle brake caliper assembly comprising a first motor vehicle brake caliper carrier (1), a second motor vehicle brake caliper carrier (2), characterized in that: The first car brake caliper seat (1) and the second car brake caliper seat (2) are provided with a sliding groove, and a convex push block (3) is slidably connected in the sliding groove. The outer end of the convex push block (3) is fixed with a steel back (4) and a brake pad (5). The brake pad (5) and the steel back (4) are fixed to the outer surface of the convex push block (3) by bolts (6), and a positioning protrusion (50) is provided on the back of the brake pad (5). A positioning rod (8) is fixed on the inner surface of the sliding groove of the first car brake caliper seat (1) and the second car brake caliper seat (2). The outer surface of the convex push block (3) is sleeved on the outer surface of the positioning rod (8). A spring (9) is sleeved on the outer surface of the positioning rod (8). An oil inlet (10) is provided at the outer end of the first car brake caliper seat (1). A guide channel (11) is provided on the inner side of the first car brake caliper seat (1) and the second car brake caliper seat (2). A grid-shaped anti-slip groove is provided on the outer surface of the brake pad (5).
2. A vehicle brake caliper assembly according to claim 1, characterized in that: The first automotive brake caliper seat (1) has a positioning protrusion (12) at its inner end. The positioning protrusion (12) is engaged with the inner surface of the second automotive brake caliper seat (2). The second automotive brake caliper seat (2) has a groove at its guide channel (11), and its positioning protrusion (12) is engaged with the groove for positioning.
3. A vehicle brake caliper assembly according to claim 2, wherein: A sealing ring (13) is held between the positioning protrusion (12) and the groove. The sealing ring (13) is made of rubber.
4. A vehicle brake caliper assembly according to claim 1, wherein: The convex pusher (3) has through holes (30) at the four corners of its outer end, and the positioning rods (8) are distributed in the four corners of the grooves of the first car brake caliper seat (1) and the second car brake caliper seat (2).
5. A vehicle brake caliper assembly according to claim 1, wherein: The brake pad (5) is provided with positioning protrusions (50) at the upper and lower ends, and the steel back (4) is provided with positioning grooves on the surface. The positioning protrusions (50) are engaged with the inner surface of the positioning grooves.
6. A vehicle brake caliper assembly according to claim 1, wherein: The outer surface of the convex pusher (3) is closely attached to the inner surface of the groove of the first automobile brake caliper seat (1) and the second automobile brake caliper seat (2).
7. A vehicle brake caliper assembly according to claim 1, wherein: The brake pads (5) are fixed to the outer surface of the steel back (4) in two sets on the left and right, and each set of brake pads (5) is fixed by two bolts (6).