Hydraulic brake with integrated quick release function
By creating threaded holes in the piston body and using the rear cover bolts to generate outward pulling force, the problem of difficult disassembly of the hydraulic brake piston assembly was solved, achieving rapid disassembly without damaging the piston assembly.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- IMPRO FLUID TECH (ZHENJIANG) CO LTD
- Filing Date
- 2025-06-24
- Publication Date
- 2026-07-03
AI Technical Summary
The piston assembly of existing hydraulic brakes is difficult to disassemble and is easily damaged.
A threaded hole is made in the piston body, and the piston assembly is separated from the brake housing by the outward pulling force generated by the rear cover bolt and the friction pair assembly, thus achieving quick disassembly.
It enables quick disassembly of the piston assembly, avoiding damage to the piston assembly.
Smart Images

Figure CN224453461U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of brake technology, specifically a hydraulic brake with integrated quick disassembly function. Background Technology
[0002] Hydraulic brakes are commonly used braking devices in industry. They consist of a brake housing and a rear cover. Inside the brake housing are a rotating shaft, a friction pair assembly, and a piston assembly. The piston assembly and the inner wall of the brake housing form a release cavity. Two sealing rings are installed on the outer wall of the piston assembly to ensure the sealing of the release cavity. During assembly, the piston assembly is pressed into the brake housing under the pressure of a servo press. Finally, the rear cover is closed. When the piston assembly needs to be disassembled, it is very difficult to disassemble because the piston assembly and the brake housing are interference fit, and the piston assembly is easily damaged. Summary of the Invention
[0003] To solve the above-mentioned technical problems, this utility model provides a hydraulic brake with integrated quick disassembly function, which can realize the quick disassembly of the piston assembly without causing damage.
[0004] The technical solution is as follows: A hydraulic brake with integrated quick disassembly function includes a brake housing and a rear cover. The rear cover is connected to the brake housing by a rear cover bolt. A friction pair assembly and a piston assembly are disposed inside the brake housing. The piston assembly includes a piston body and a sealing ring installed on the outer peripheral surface of the piston body. The piston assembly and the stepped surface of the inner wall of the brake housing form a release cavity. The side wall of the brake housing is provided with a release port corresponding to the release cavity. The piston body is characterized by having at least two threaded holes. The diameter of the threaded holes is consistent with the outer diameter of the threaded section of the rear cover bolt. The opening position of the threaded holes avoids the release cavity. When disassembling the piston assembly, after removing the rear cover, the rear cover bolt is screwed into the threaded hole of the piston body, which abuts against the friction pair assembly and generates an outward pulling force, causing the piston assembly to separate from the brake housing.
[0005] A further feature is that the rear cover bolts are provided in three parts.
[0006] By adopting this utility model, a threaded hole corresponding to the rear cover bolt is made on the piston body. During disassembly, no other tools are needed. The rear cover bolt is directly screwed into the threaded hole of the piston body. After the rear cover bolt abuts against the friction pair assembly, the piston assembly is pulled outward by continuing to turn the rear cover bolt, so that the piston assembly is separated from the brake housing. The force generated during the pulling is axial and will not damage the piston body, thus achieving quick disassembly. Attached Figure Description
[0007] Figure 1This is a schematic diagram of the piston assembly in the present invention in the state before disassembly;
[0008] Figure 2 This is a schematic diagram showing the piston assembly after disassembly in this utility model. Detailed Implementation
[0009] See Figure 1 , Figure 2 As shown, a hydraulic brake with integrated quick disassembly function includes a brake housing 1 and a rear cover 2. The rear cover 2 is connected to the brake housing 1 by three rear cover bolts 3. A friction pair assembly 4 and a piston assembly 5 are disposed within the brake housing 1. The piston assembly 5 includes a piston body 5-1 and two sealing rings 5-2 mounted on the outer circumferential surface of the piston body. The piston assembly 5 and the stepped inner wall of the brake housing 1 form a release cavity 6, which is sealed by the sealing rings 5-2. A release port 7 corresponding to the release cavity 6 is provided on the side wall of the brake housing 1. Two or three threaded holes are provided on the piston body 5-1, the diameter of which is consistent with the outer diameter of the threaded section of the rear cover bolts 3. The opening position of the threaded holes avoids the release cavity 6. A spring 8 is disposed within the rear cover 2.
[0010] When disassembling piston assembly 5, first unscrew the rear cover bolt 3, remove the rear cover 2, and then screw the rear cover bolt 3 into the threaded hole of piston body 5-1 until the end of the rear cover bolt 3 abuts against the friction pair assembly 4. Then continue to screw the rear cover bolt 3 to generate an outward pulling force, allowing piston assembly 5 to overcome friction and separate from brake housing 1.
Claims
1. A hydraulic brake with integrated quick disassembly function, comprising a brake housing and a rear cover, the rear cover being connected to the brake housing by rear cover bolts, a friction pair assembly and a piston assembly disposed within the brake housing, the piston assembly comprising a piston body and a sealing ring mounted on the outer peripheral surface of the piston body, the piston assembly forming a release cavity with the stepped surface of the inner wall of the brake housing, and a release port corresponding to the release cavity being disposed on the side wall of the brake housing, characterized in that... The piston body has at least two threaded holes, the diameter of which is the same as the outer diameter of the threaded section of the rear cover bolt. The opening position of the threaded holes avoids the release cavity. When disassembling the piston assembly, after removing the rear cover, the rear cover bolt is screwed into the threaded hole of the piston body. After pressing against the friction pair assembly, an outward pulling force is generated, causing the piston assembly to separate from the brake housing.
2. The hydraulic brake according to claim 1, wherein The rear cover is provided with three bolts.