Brake pump structure for a motorcycle

By introducing a fixing structure for the upper and lower shells into the motorcycle brake pump structure, and using cylinders and arc-shaped blocks to abut against the handlebars, the problem of the main pump body shaking when the handlebars are thin is solved, and the brake pump can be stably installed on different handlebars.

CN224375810UActive Publication Date: 2026-06-19ZHEJIANG CHUANGYU AUTOMOBILE & MOTORCYCLE PARTS CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG CHUANGYU AUTOMOBILE & MOTORCYCLE PARTS CO LTD
Filing Date
2025-08-22
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

When the motorcycle handlebars are thin, the upper and lower fixing blocks cannot fit tightly against the handlebars, causing the main pump body to wobble.

Method used

Design a brake pump structure for motorcycles, which adopts a fixed structure of upper and lower shells, and uses multiple cylinders inserted into slots and connected by bolts, combined with an arc-shaped block to abut against the handlebars, to achieve positioning for handlebars of different thicknesses.

🎯Benefits of technology

It effectively reduces the wobbling of the main pump body on handlebars of different thicknesses, ensuring the stability and sealing of the brake pump structure.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224375810U_ABST
    Figure CN224375810U_ABST
Patent Text Reader

Abstract

This utility model relates to the field of brake pump technology, and in particular to a brake pump structure for motorcycles. It includes a main pump body and a handle. The handle is mounted on top of the main pump body, and a fixing structure is located below the main pump body. The fixing structure includes an upper shell and a lower shell. Multiple cylinders are fixedly connected to the lower part of the upper shell, and the outer walls of each cylinder are inserted into slots. These slots are machined into the inner wall of the lower shell. The upper shell is connected to the lower shell by multiple bolts. In this motorcycle brake pump structure, through the cooperation of the main pump body and the fixing structure, the upper and lower shells are placed on both sides of the motorcycle handlebars, allowing the multiple cylinders to be inserted into the slots. At this point, the outer walls of multiple arc-shaped blocks are pressed against the motorcycle handlebars. Then, by rotating the multiple bolts, the upper and lower shells are fixed together. The multiple arc-shaped blocks can serve as a centering point, reducing the likelihood of the main pump body wobbling on motorcycle handlebars of different thicknesses within a certain range.
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Description

Technical Field

[0001] This utility model relates to the field of brake pump technology, specifically a brake pump structure for motorcycles. Background Technology

[0002] The motorcycle brake pump is an important component of the motorcycle braking system, used for braking the motorcycle. The brake pump assembly mainly includes the main pump body and the handle. By pressing the handle, the push rod inside the main pump body moves down, which in turn pushes the piston rod and the retaining spring down, thereby pushing the brake fluid in the chamber out through the oil outlet pipe. The hydraulic pressure then pushes the lower pump piston, causing the brake pads to generate friction with the brake disc, thus forming effective braking.

[0003] For example, a motorcycle brake pump assembly with announcement number "CN222797996U" has a sealing sleeve installed on the top of the main pump body, which fits snugly against the inner wall of the oil chamber. Simultaneously, the sealing sleeve is slidably connected to the outer wall of the push rod, creating an effective seal. When the handle is pressed, the push rod moves, pushing the piston cylinder and retaining spring downwards, squeezing the brake fluid inside the oil chamber and forcing it out through the outlet pipe. Simultaneously, hydraulic pressure pushes the lower pump piston, causing friction between the brake pads and the brake disc, resulting in effective braking and preventing brake fluid leakage, thus ensuring the hydraulic pressure required for braking. However, in this brake pump assembly, the main pump body is fixed to the motorcycle handlebars by upper and lower fixing blocks. When the motorcycle handlebars are thin, the upper and lower fixing blocks cannot fit tightly against the thin handlebars, easily causing the main pump body to wobble. Utility Model Content

[0004] The purpose of this utility model is to solve the problem that when the main pump body is fixed to the motorcycle handlebars by the upper and lower fixing blocks, the upper and lower fixing blocks cannot fit tightly with the thin motorcycle handlebars, which easily leads to the main pump body shaking. Therefore, a brake pump structure for motorcycles is proposed.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] Design a brake pump structure for a motorcycle, including a main pump body and a handle. The handle is installed on the top of the main pump body, and a fixing structure is provided below the main pump body. The fixing structure includes an upper shell and a lower shell. Multiple cylinders are fixedly connected to the lower part of the upper shell. The outer walls of the cylinders are all inserted into slots. The slots are all machined on the inner wall of the lower shell. The upper shell is connected to the lower shell by multiple bolts.

[0007] Preferably, multiple arc-shaped blocks are fixedly connected to the inner sides of both the upper and lower shells, and the upper shell is fixedly connected to the main pump body.

[0008] Preferably, the handle is abutted against the push rod at the bottom.

[0009] Preferably, an oil outlet pipe is fixedly connected to the left side of the main pump body.

[0010] Preferably, an oil reservoir is installed on the front side of the main pump body.

[0011] Preferably, the push rod is mounted on the inner wall of the main pump body.

[0012] The present invention proposes a motorcycle brake pump structure with the following advantages: by cooperating with the main pump body and the fixing structure, the upper and lower shells are placed on both sides of the motorcycle handlebars, and multiple cylinders are inserted into the slots. At this time, the outer walls of multiple arc-shaped blocks are pressed against the motorcycle handlebars. Then, by rotating multiple bolts, the upper and lower shells are fixed together. The multiple arc-shaped blocks can play a role in center positioning, and within a certain range, can reduce the shaking of the main pump body on motorcycle handlebars of different thicknesses. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 for Figure 1 A partial right-side sectional view;

[0015] Figure 3 This is a three-dimensional schematic diagram of the upper shell;

[0016] Figure 4 This is a three-dimensional schematic diagram of the lower shell.

[0017] In the diagram: 1. Main pump body, 2. Oil outlet pipe, 3. Fixed structure, 301. Upper shell, 302. Lower shell, 303. Arc-shaped block, 304. Cylinder, 305. Slot, 4. Oil reservoir, 5. Push rod, 6. Handle. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings:

[0019] See attached document Figure 1-4 In this embodiment, a motorcycle brake pump structure includes a main pump body 1 and a handle 6. The handle 6 is installed on the top of the main pump body 1, and a fixing structure 3 is provided below the main pump body 1. The fixing structure 3 includes an upper shell 301 and a lower shell 302. Multiple cylinders 304 are fixedly connected to the lower part of the upper shell 301. The outer walls of the cylinders 304 are all inserted into slots 305. The slots 305 are all machined on the inner wall of the lower shell 302. The cooperation between the slots 305 and the cylinders 304 can play a positioning role. The upper shell 301 is connected to the lower shell 302 by multiple bolts.

[0020] Multiple arc-shaped blocks 303 are fixedly connected to the inner sides of the upper shell 301 and the lower shell 302. The upper shell 301 is fixedly connected to the main pump body 1 at the top. The handle 6 is pressed against the push rod 5 at the bottom. The oil outlet pipe 2 is fixedly connected to the left side of the main pump body 1. An oil storage tank 4 is installed on the front side of the main pump body 1. The push rod 5 is installed on the inner wall of the main pump body 1.

[0021] Working principle:

[0022] The operator places the upper shell 301 and the lower shell 302 on both sides of the motorcycle handlebars, inserts multiple cylinders 304 into the slots 305, and at this time, the outer walls of multiple arc blocks 303 are pressed against the motorcycle handlebars. Then, multiple bolts are turned to fix the upper shell 301 and the lower shell 302 together. The multiple arc blocks 303 can play the role of center positioning. Within a certain range, it can reduce the shaking of the main pump body 1 on motorcycle handlebars of different thicknesses.

[0023] Connect the oil outlet pipe 2 to the wheel brake of the motorcycle. The oil can be added through the door on the front side of the oil tank 4. When braking is required, press the handle 6. The handle 6 drives the push rod 5 to move into the oil chamber on the inner wall of the main pump body 2, increasing the pressure in the oil chamber. This allows the brake fluid to be delivered to the wheel brake through the oil outlet pipe, so that the brake pads and brake discs are in close contact, generating friction to slow down or stop the wheels and complete the braking.

[0024] When the brake is not needed, release handle 6, and the spring inside the main pump body 1 pushes the push rod 5 back to its original position.

[0025] Although the present invention has been illustrated and described with reference to preferred embodiments, those skilled in the art should understand that various changes in form and detail are possible within the scope of the claims.

Claims

1. A brake pump structure for a motorcycle, comprising a main pump body (1) and a handle (6), wherein the handle (6) is mounted on top of the main pump body (1), characterized in that: The main pump body (1) is provided with a fixed structure (3) below it. The fixed structure (3) includes an upper shell (301) and a lower shell (302). Multiple cylinders (304) are fixedly connected to the lower part of the upper shell (301). The outer walls of the cylinders (304) are all inserted into slots (305). The slots (305) are all machined on the inner wall of the lower shell (302). The upper shell (301) is connected to the lower shell (302) by multiple bolts.

2. The motorcycle brake pump structure according to claim 1, characterized in that: Multiple arc-shaped blocks (303) are fixedly connected to the inner sides of the upper shell (301) and the lower shell (302), and the upper shell (301) is fixedly connected to the main pump body (1).

3. The motorcycle brake pump structure according to claim 1, characterized in that: The handle (6) is pressed against the push rod (5) below.

4. The motorcycle brake pump structure according to claim 1, characterized in that: The main pump body (1) has an oil outlet pipe (2) fixedly connected to its left side.

5. The motorcycle brake pump structure according to claim 1, characterized in that: An oil storage tank (4) is installed on the front side of the main pump body (1).

6. The motorcycle brake pump structure according to claim 3, characterized in that: The push rod (5) is installed on the inner wall of the main pump body (1).