Double-brake caliper assembly
By installing a protective base shell on the outside of the brake caliper's oil passage and an isolation rubber sleeve at the piston, the problem of easy damage to the oil passage is solved, ensuring the safety of the braking system, protecting the piston from dust and dirt, and achieving stable operation and safety of the braking system.
Patent Information
- Application Number
- CN202520233720.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-14
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2035-02-14
AI Technical Summary
In existing technologies, the brake caliper's oil passages are exposed, making them vulnerable to damage from high-speed flying stones and other objects, leading to brake system failure and affecting vehicle and personnel safety.
A protective base and a buffer pad are installed on the outside of the brake caliper's oil passage, and an isolation rubber sleeve is installed between the piston and the brake friction block. The protective base is fixed by a mounting bracket. The protective base protects the oil passage, and the isolation rubber sleeve protects the piston, preventing dust and dirt from adhering.
It effectively protects the oil circuit, prevents damage from stones and other objects, ensures the normal operation of the braking system, avoids piston rust or lubricant failure, and guarantees the safety of the vehicle and its occupants.
Smart Images

Figure CN223767988U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of brake, in particular, relate to a double brake caliper assembly. BACKGROUND
[0002] The brake caliper is a key component in the automobile brake system responsible for converting hydraulic energy into mechanical force to slow down or stop the vehicle. The double brake caliper is a brake device with two pistons, commonly known as a double-piston caliper. Compared with single calipers, it has more uniform clamping force distribution on the inner and outer sides and provides more stable braking performance.
[0003] As disclosed in the utility model with the authorized announcement number CN217029750U, a double-cylinder front brake caliper assembly includes an upper caliper body and a lower caliper body. The upper caliper body is fixedly installed on the upper surface of the lower caliper body. The upper surface of the upper caliper body is provided with a mounting hole. The inside of the mounting hole is provided with a mounting hole sleeve. The inside of the upper caliper body is provided with a piston slot. The inside of the piston slot is provided with a piston. The utility model effectively prevents dust from entering between the piston and the piston slot by setting a piston dust cover inside the upper caliper body, avoiding the phenomenon of piston wall wear caused by impurities entering during piston movement, prolonging the service life of the piston, and improving the sealing between the piston and the piston slot by setting a first sealing rubber ring and a second sealing rubber ring inside the piston slot, avoiding the phenomenon of sealing between the piston and the piston slot after long-term use, and further improving the practicability of the double-cylinder front brake caliper assembly. However, in the application process of this technical solution, the oil line connecting the cylinder body is exposed, and high-speed flying stones and other objects brought by the vehicle during driving can easily damage the oil line, causing the brake system to fail and affecting the safety of the vehicle and personnel. There is a technical problem that the brake caliper oil line cannot be protected and the safety of the brake system cannot be ensured. SUMMARY
[0004] To solve the above-mentioned shortcomings of the prior art, the utility model provides a double brake caliper assembly, which can effectively solve the problems of the prior art.
[0005] To solve the above-mentioned technical problems, the utility model is realized by the following technical solutions:
[0006] The utility model discloses a kind of double brake caliper assemblies, including brake caliper body, further include: the both ends of brake caliper body bottom are provided with mounting plate, brake caliper body both ends middle position is provided with cylinder body, the inside of cylinder body is provided with piston, the front end of one side of cylinder body is inserted with oil inlet nozzle, oil passage is provided between the cylinder body of one side of brake caliper body, brake caliper body inside both ends bottom both sides are provided with brake sliding pin, the inside of brake caliper body of one end of piston is provided with brake friction block, one end of cylinder body inside is provided with oil seal, the outside of cylinder body of brake caliper body both ends is provided with dust cover, the bottom of oil passage outside is provided with protective bottom shell, the both ends of protective bottom shell inside are provided with buffer pad, the side of protective bottom shell bottom both ends is provided with fixed seat, the outside of piston between brake caliper body inside and brake friction block is provided with isolation protection assembly.
[0007] Further, the protective bottom shell is "U" shaped, and the vertical cross-section of the protective bottom shell is semi-circular, the inside diameter of the protective bottom shell is greater than the cross-sectional diameter of the oil passage.
[0008] Further, the fixed seat is "L" shaped, and one end of the fixed seat is fixedly connected to one side of both ends of the brake caliper body by bolts.
[0009] Further, the oil passage is "U" shaped, and the oil passage is in communication with the inside of the cylinder body, the brake friction blocks of the cylinder body are symmetrically arranged inside the brake caliper body, and the brake friction blocks are parallel to each other.
[0010] Further, the dust cover and the oil seal are annular, and the inside of the oil seal is in contact with the outside of the piston.
[0011] Further, the isolation protection assembly includes an isolation rubber sleeve, the isolation rubber sleeve is arranged outside the piston between the brake caliper body inside and the brake friction block, both ends of the isolation rubber sleeve are provided with connecting rings, and the connecting rings are glued to the brake caliper body inside and the brake friction block outside.
[0012] The utility model has the following beneficial effects:
[0013] 1. The protective assembly is arranged on the bottom outside of the oil passage, the protective bottom shell is sleeved on the bottom end outside of the oil passage during use, the buffer pad is arranged between the contact surface between the oil passage outside and the protective bottom shell inside, the fixed seat is installed and fixed on one side of both ends of the brake caliper body, so that the protective bottom shell is positioned and stably installed, the oil passage is protected by the protective bottom shell during vehicle driving, the oil passage is prevented from being damaged by stones and other objects thrown by wheels, brake fluid leakage is avoided, the normal operation of the brake system is ensured, the safety of the brake is ensured, and the safety of the vehicle and the driver and passengers is ensured.
[0014] 2, the utility model discloses a separation protection subassembly is provided with between the piston outside between the inner side of brake caliper body and brake friction block, when using, through connecting ring, the separation rubber cover is connected and installed between the piston outside between brake caliper body and brake friction block, utilize separation rubber cover and separate protection to piston, avoid dust and soil etc. being carried and adhering on the outside of piston to make the piston surface rust or lubricant failure, thereby leading to the piston cannot flow, thereby further realized the separation protection to piston to ensure the purpose of brake system safe normal work. BRIEF DESCRIPTION OF DRAWINGS
[0015] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will be to the embodiment description needed to use the drawing briefly introduced, obviously, the drawing in the following description only some embodiments of the utility model, for the ordinary skilled person in the art, under the premise of not paying creative labor, can also obtain other drawings according to these drawings.
[0016] Figure 1 It is the three-dimensional structure schematic diagram of the utility model;
[0017] Figure 2 It is the bottom view three-dimensional structure schematic diagram of the utility model;
[0018] Figure 3 It is the side view cross section structure schematic diagram of the utility model;
[0019] Figure 4 It is the Figure 3 Amplification structure schematic diagram of the utility model in A place.
[0020] In the drawing, the component list represented by each sign is as follows:
[0021] 1, brake caliper body;2, oil inlet nozzle;3, brake friction block;4, oil circuit;5, protection bottom shell;6, buffer pad;7, fixed seat;8, mounting plate;9, cylinder body;10, brake sliding pin;11, separation rubber cover;12, piston;13, dust cover;14, connecting ring;15, oil seal. DETAILED DESCRIPTION
[0022] The technical scheme in the embodiments of the utility model will be described clearly and completely in conjunction with the drawings in the embodiments of the utility model.
[0023] Please refer to Figures 1-4As shown, the utility model is a kind of double brake caliper assembly, including brake caliper body 1, still include: the both ends of brake caliper body 1 bottom are provided with mounting plate 8, the middle position of brake caliper body 1 both ends is provided with cylinder body 9, the inside of cylinder body 9 is provided with piston 12, the front end of cylinder body 9 side is inserted with oil inlet nozzle 2, is connected with brake fluid delivery pipeline by oil inlet nozzle 2, and the cylinder body 9 between brake caliper body 1 side is provided with the oil passage 4 of "U" letter shape, and the inside of oil passage 4 is connected with cylinder body 9, and the both sides of brake caliper body 1 inside both ends bottom are provided with brake sliding pin 10, and the inside of brake caliper body 1 one end of piston 12 is provided with brake friction block 3, and brake friction block 3 is symmetrically arranged in the inside of brake caliper body 1 of cylinder body 9, and brake friction block 3 is parallel between each other, when braking, brake fluid is delivered to cylinder body 9 by brake pump, simultaneously, brake fluid is guided to another cylinder body 9 by oil passage 4, and piston 12 is moved towards to push brake friction block 3 and clamps brake disc to brake, and one end of the inside of cylinder body 9 is provided with annular oil seal 15, and the outside of cylinder body 9 of brake caliper body 1 inside both ends is provided with annular dust cover 13, and the inside of oil seal 15 is attached to the outside of piston 12, and oil leakage and dust are avoided by oil seal 15 and dust cover 13 to enter cylinder body 9.
[0024] As further embodiments of the present embodiment, as shown in Figure 1 And Figure 2 As shown, the bottom of the outside of oil passage 4 is provided with the "U" letter-shaped protective bottom shell 5, and the vertical section of protective bottom shell 5 is semi-annular, the inside diameter of protective bottom shell 5 is greater than the cross-sectional diameter of oil passage 4, one side of the bottom of protective bottom shell 5 is provided with the "L" letter-shaped fixing seat 7, one end of fixing seat 7 is fixedly connected with one side of the both ends of brake caliper body 1 by bolt, and the purpose of positioning and stably installing protective bottom shell 5 can be achieved by installing fixing seat 7 on one side of the both ends of brake caliper body 1, and the both ends of the inside of protective bottom shell 5 are provided with buffer pad 6, and the contact surface between the outside of oil passage 4 and the inside of protective bottom shell 5 is protected by buffer pad 6, and oil passage 4 is protected by protective bottom shell 5 during vehicle driving, so as to avoid that the objects such as stones on the road are brought up and thrown by wheels to hit and destroy oil passage 4, causing brake fluid leakage to affect the normal work of brake system, thereby ensuring the safety of brake, and further ensuring the safety of vehicle and driver and passenger;
[0025] When used, protective bottom shell 5 is sleeved on the bottom end of the outside of oil passage 4, and the contact surface between the outside of oil passage 4 and the inside of protective bottom shell 5 is protected by buffer pad 6, and protective bottom shell 5 is positioned and stably installed by installing fixing seat 7 on one side of the both ends of brake caliper body 1, and oil passage 4 is protected by protective bottom shell 5 during vehicle driving;
[0026] As further embodiments of the present embodiment, as shown in Figures 1-4As shown, the piston 12 between the inner side of the brake caliper body 1 and the brake friction block 3 is externally provided with an isolation protection assembly, which comprises an isolation rubber sleeve 11 arranged outside the piston 12 between the inner side of the brake caliper body 1 and the brake friction block 3, and the isolation rubber sleeve 11 is provided with a connecting ring 14 at both ends, which is glued to the outer side of the brake caliper body 1 and the brake friction block 3, and the isolation rubber sleeve 11 is connected and installed outside the piston 12 between the brake caliper body 1 and the brake friction block 3 through the connecting ring 14. When the vehicle is running, the piston 12 is isolated and protected by the isolation rubber sleeve 11, so that dust and soil are not brought up and attached to the outside of the piston 12 to cause the surface of the piston 12 to rust or the lubricant to fail, thereby further achieving the purpose of isolating and protecting the piston 12 to ensure the safe and normal working of the brake system.
[0027] Working principle: when the double brake caliper assembly is used, first, the protection bottom shell 5 is sleeved at the bottom end outside the oil way 4, and is protected between the oil way 4 outside and the inner side contact surface of the protection bottom shell 5 through the buffer pad 6, and the protection bottom shell 5 is positioned and stably installed by installing the fixing seat 7 on one side of the two ends of the brake caliper body 1, and the isolation rubber sleeve 11 is connected and installed outside the piston 12 between the brake caliper body 1 and the brake friction block 3 through the connecting ring 14, and the piston 12 is isolated and protected by the isolation rubber sleeve 11, then the brake caliper body 1 is positioned and installed through the installation plate 8, and the brake caliper is connected with the hydraulic oil delivery system through the oil inlet 2, and when the vehicle is running, the brake liquid is delivered into the cylinder body 9 through the brake pump, and the brake liquid is guided into the other cylinder body 9 through the oil way 4 to drive the piston 12 to move towards each other to drive the brake friction block 3 to clamp the brake disc to brake, and the protection bottom shell 5 protects the oil way 4, and the oil leakage and the dust entering the cylinder body 9 are avoided through the oil seal 15 and the dust cover 13, and the piston 12 is isolated and protected by the isolation rubber sleeve 11 to avoid that the dust and soil are brought up and attached to the outside of the piston 12 to cause the surface of the piston 12 to rust or the lubricant to fail.
[0028] The above is only the preferred embodiment of the present application, and does not limit the present application, any modification, equivalent replacement, improvement of any modification, equivalent replacement, improvement of the technical solutions recorded in the foregoing embodiments, all belong to the protection scope of the present application.
Claims
1. A dual caliper assembly comprising a caliper body (1), characterized in that, Also include: The bottom of the brake caliper body (1) is provided with mounting plate (8), the brake caliper body (1) both ends of the middle position is provided with cylinder (9), the inside of cylinder (9) is provided with piston (12), the front end of one side of cylinder (9) is inserted with oil nozzle (2), the brake caliper body (1) one side between cylinder (9) is provided with oil channel (4), the brake caliper body (1) inside both ends bottom both sides are provided with brake sliding pin (10), the inside of brake caliper body (1) one end of piston (12) is provided with brake friction block (3), one end of cylinder (9) inside is provided with oil seal (15), the outside of cylinder (9) of brake caliper body (1) both ends is provided with dust cover (13), the bottom of oil channel (4) outside is provided with protective bottom shell (5), both ends of protective bottom shell (5) inside is provided with buffer pad (6), one side of protective bottom shell (5) bottom both ends is provided with fixed seat (7), the outside of piston (12) between brake caliper body (1) inside and brake friction block (3) is provided with isolation protection assembly.
2. A dual caliper assembly according to claim 1, wherein, The protective bottom shell (5) is "U” shaped, and the vertical section of the protective bottom shell (5) is semicircular, the inside diameter of the protective bottom shell (5) is greater than the cross-sectional diameter of the oil channel (4).
3. A dual caliper assembly according to claim 1, wherein, The fixed seat (7) is "L” shaped, and one end of the fixed seat (7) is fixedly connected with one side of the both ends of the brake caliper body (1) by bolts.
4. A dual caliper assembly according to claim 1, wherein, The oil channel (4) is "U” shaped, and the oil channel (4) is connected with the inside of the cylinder (9), the brake friction block (3) is symmetrically arranged on the inside of the brake caliper body (1), and the brake friction block (3) is parallel to each other.
5. A dual caliper assembly according to claim 1, wherein, The dust cover (13) and the oil seal (15) are annular, and the inside of the oil seal (15) is in contact with the outside of the piston (12).
6. A dual caliper assembly according to claim 1, wherein, The isolation protection assembly comprises an isolation rubber sleeve (11), which is arranged outside the piston (12) between the inside of the brake caliper body (1) and the brake friction block (3), and the both ends of the isolation rubber sleeve (11) are provided with connecting rings (14), which are glued to the inside of the brake caliper body (1) and the outside of the brake friction block (3).
Citation Information
Patent Citations
Double-cylinder front brake caliper assembly
CN217029750U