A motorcycle direct-push brake master cylinder

Abstract

This utility model provides a direct-push brake master cylinder for motorcycles, belonging to the field of motor vehicle braking technology. It solves the problem of unstable oil pressure in existing brake lines. This direct-push brake master cylinder includes a brake cylinder body, with a brake fluid reservoir externally mounted on the cylinder body via a mounting frame and connected to the cylinder body via a connecting pipe. An external pipe connecting to the braking system is located at the lower end of the cylinder body. A piston assembly is housed within the cylinder body and moves within its cavity. A brake handle controlling the forward and backward movement of the piston assembly is located externally. The piston assembly includes a piston portion, a fixing member, a fixing rod, and a connecting spring. This utility model offers the advantage of excellent braking performance.

Description

Technical Field

[0001] This utility model belongs to the field of motor vehicle braking technology, and relates to a brake master cylinder, particularly a motorcycle direct-push brake master cylinder. Background Technology

[0002] Current motorcycle / electric vehicle disc brakes mainly consist of a brake lever, a handbrake hydraulic cylinder, disc brake pads, and a hydraulic braking device. The brake lever is the control mechanism for generating braking force. When the brake lever is turned, the handbrake hydraulic cylinder is compressed, thereby controlling the hydraulic braking device to brake the brake pads and generate braking force.

[0003] The standard configuration for most small and medium displacement motorcycles is a side-pump pump. The direction of movement of its hydraulic piston is perpendicular to the direction of movement of the brake handle. Therefore, its movement distance and piston stroke are non-linear. Furthermore, the existing brake piston and brake handle cannot be adjusted, both of which significantly affect the user experience and operation.

[0004] The existing brake master cylinder experiences unstable oil pressure in the brake lines during braking, and the brake lines cannot maintain a certain residual pressure when the brake is released, which affects the braking performance of the brake master cylinder. Summary of the Invention

[0005] The purpose of this invention is to address the aforementioned problems in the existing technology by providing a direct-push master cylinder for motorcycles with good braking performance.

[0006] The objective of this utility model can be achieved through the following technical solution: A direct-push brake master cylinder for motorcycles, comprising a brake cylinder body, characterized in that a brake fluid tank is provided outside the brake cylinder body, the brake fluid tank is fixedly installed on the brake cylinder body by a mounting frame and connected to the brake cylinder body by a connecting pipe, an external pipe connected to the braking system is provided at the lower end of the brake cylinder body, a piston assembly is provided inside the brake cylinder body and the piston assembly moves within the cavity of the brake cylinder body, a brake handle is provided outside the brake cylinder body to control the forward and backward movement of the piston assembly, the piston assembly includes a piston part, a fixing member, a fixing rod and a connecting spring, the fixing member is connected to the piston part by the connecting spring and the fixing member is fixedly provided at the front end of the brake cylinder body, the piston part is provided on the fixing rod, and one end of the fixing rod extends out of the brake cylinder body and is provided with a stop member, the stop member abuts against the brake handle so that the piston part moves forward and backward by controlling the brake handle, an adjusting member is provided on the brake handle and at a position relative to the stop member, the direction of movement of the hydraulic piston is the same as the direction of movement of the brake handle.

[0007] In the above-mentioned motorcycle direct-push brake master cylinder, an oil inlet chamber is provided at the upper end of the brake cylinder body, and an oil inlet hole for oil inlet is provided between the oil inlet chamber and the cavity of the brake cylinder body.

[0008] In the aforementioned motorcycle direct-push brake master cylinder, the adjusting member is integrally mounted on the brake handle, and the lower end of the adjusting member has five abutment surfaces that can abut against the abutment member, and the upper end of the adjusting member is provided with an adjustment mark.

[0009] Compared with existing technologies, this motorcycle's direct-push brake master cylinder uses a direct-push design, which makes the direction of movement of the hydraulic piston the same as the direction of movement of the brake handle, thus enhancing the user experience. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of this utility model.

[0011] Figure 2 This is a cross-sectional structural diagram of the present invention.

[0012] Figure 3 This is a schematic diagram of the adjusting component in this utility model.

[0013] In the diagram, 1. Brake cylinder body; 2. Brake fluid reservoir; 3. Mounting frame; 4. External pipeline; 5. Piston assembly; 6. Brake handle; 7. Piston part; 8. Fixing component; 9. Fixing rod; 10. Connecting spring; 11. Abutment component; 12. Adjusting component; 13. Abutment surface. Detailed Implementation

[0014] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0015] like Figure 1 , Figure 2 , Figure 3As shown, this motorcycle direct-push brake master cylinder includes a brake cylinder body 1. A brake fluid reservoir 2 is externally mounted to the brake cylinder body 1 via a mounting frame 3 and connected to the brake cylinder body 1 via a connecting pipe. An external pipe 4 connected to the braking system is located at the lower end of the brake cylinder body 1. A piston assembly 5 is installed inside the brake cylinder body 1 and moves within the cavity of the brake cylinder body 1. A brake handle 6, which controls the forward and backward movement of the piston assembly 5, is movably mounted externally to the brake cylinder body 1. The piston assembly 5 includes a piston portion. 7. Fixing member 8, fixing rod 9, and connecting spring 10. The fixing member 8 is connected to the piston part 7 through the connecting spring 10, and the fixing member 8 is fixedly installed at the front end of the brake cylinder body 1. The piston part 7 is installed on the fixing rod 9, and one end of the fixing rod 9 extends out of the brake cylinder body 1 and is provided with abutment member 11. An adjusting member 12 is provided on the brake handle 6 at a position relative to the abutment member 11. The abutment member 11 abuts against the adjusting member 12 of the brake handle 6, thereby controlling the piston part 7 to move back and forth through the brake handle 6. The direction of movement of the hydraulic piston is the same as the direction of movement of the brake handle.

[0016] To elaborate further, the characteristic of the direct-pump brake pump is that the direction of its hydraulic piston is consistent with the direction of movement of the brake lever, presenting a direct proportional relationship, providing the driver with an intuitive and linear operating experience, and ensuring precise braking.

[0017] To elaborate further, when the brake handle 6 is rotated, it swings forward, which in turn moves the fixed rod 9 forward. The fixed rod 9 then moves the piston 7 forward, compressing the space in the brake chamber and allowing brake fluid to be output from the brake line to the vehicle's braking system. When the brake handle 6 returns to its original position, the fixed rod 9 loses the pressure from the brake handle 6, and the return spring moves the piston 7 back to its original position, allowing the brake fluid to flow back and releasing the brakes.

[0018] To elaborate further, the upper end of the brake cylinder body 1 is provided with an oil inlet chamber, and an oil inlet hole for oil inlet is provided between the oil inlet chamber and the cavity of the brake cylinder body 1.

[0019] To elaborate further, the adjusting member 12 is integrally mounted on the brake handle 6, and the lower end of the adjusting member 12 has five abutment surfaces 13 that can abut against the abutment member 11, while the upper end of the adjusting member 12 is provided with an adjustment mark. These five abutment surfaces 13 are all different, allowing the distance between the piston part 7 and the brake handle 6 to be controlled by rotating the adjusting member 12.

[0020] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

[0021] Although this document frequently uses terms such as brake cylinder body 1, brake fluid tank 2, mounting frame 3, external pipeline 4, piston assembly 5, brake handle 6, piston part 7, fixing member 8, fixing rod 9, connecting spring 10, abutment member 11, adjusting member 12, and abutment surface 13, the possibility of using other terms is not excluded. The use of these terms is merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any additional limitation would contradict the spirit of this utility model.

Claims

1. A motorcycle direct brake master cylinder comprising a brake cylinder body (1), characterized in that, The brake cylinder body (1) is provided with a brake fluid tank (2) on its exterior. The brake fluid tank (2) is fixedly installed on the brake cylinder body (1) by a mounting frame (3) and connected to the brake cylinder body (1) by a connecting pipe. The lower end of the brake cylinder body (1) is provided with an external pipe (4) connected to the braking system. The brake cylinder body (1) is provided with a piston assembly (5) inside, and the piston assembly (5) moves within the cavity of the brake cylinder body (1). The brake cylinder body (1) is provided with a brake handle (6) outside, which controls the piston assembly (5) to move back and forth. The piston assembly (5) includes a piston part (7), a fixing part (8), and a fixing rod. (9) and connecting spring (10), the fixing member (8) and piston part (7) are connected by connecting spring (10), and the fixing member (8) is fixedly set at the front end of brake cylinder body (1). The piston part (7) is set on fixing rod (9), and one end of fixing rod (9) extends out of brake cylinder body (1) and is provided with abutting member (11). The abutting member (11) abuts against brake handle (6) so that the piston part (7) can be controlled to move back and forth by brake handle (6). An adjusting member (12) is provided on brake handle (6) and at a position relative to abutting member (11). The direction of movement of hydraulic piston is the same as the direction of operation of brake handle.

2. A motorcycle direct-push brake master cylinder according to claim 1, characterized in that, The upper end of the brake cylinder body (1) is provided with an oil inlet chamber, and an oil inlet hole for oil inlet is provided between the oil inlet chamber and the cavity of the brake cylinder body (1).

3. A motorcycle direct-push brake master cylinder according to claim 1, characterized in that, The adjusting member (12) is integrally mounted on the brake handle (6), and the lower end of the adjusting member (12) has five abutting surfaces (13) that can abut against the abutting member (11), and the upper end of the adjusting member (12) is provided with an adjusting mark.

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