Novel hydraulic brake structure for three-wheeled vehicle

Abstract

The utility model provides a novel tricycle hydraulic brake structure, including main cylinder body, front cylinder cavity and rear cylinder cavity, the front end position of main cylinder body is provided with front cylinder cavity, the rear end position of main cylinder body is provided with rear cylinder cavity, and the connecting port outside rear cylinder cavity is connected with rear cavity oil guide pipe, and one end of rear cavity oil guide pipe is connected with rear brake ware no.

Description

Technical Field

[0001] This utility model belongs to the field of vehicle braking technology and relates to a novel hydraulic vehicle braking structure for tricycles. Background Technology

[0002] like Figure 2 The traditional tricycle braking system uses a dual-chamber parallel master cylinder connected to the front brake to form a front braking circuit, and the right chamber connected to the two rear brakes via a T-junction to form a rear braking circuit. This braking system has the following two drawbacks, affecting the user's braking:

[0003] Because the brakes in the front and rear braking circuits are of different sizes and quantities, the system fluid consumption of the two circuits is inconsistent, resulting in a significant difference in hydraulic pressure between the two chambers of the master cylinder. The chamber with higher fluid consumption produces lower hydraulic pressure than the chamber with lower fluid consumption. Furthermore, the difference in fluid consumption between the two chambers varies with the overall system hydraulic pressure. Therefore, throughout the braking process, the output pressure difference between the two chambers of the master cylinder constantly changes, causing the braking force generated by the brake to be non-linear and inconsistent with the user's expectations.

[0004] The brake pedal is connected to the two input rods of the master cylinder. The pedal input force is distributed to the two parallel pistons, resulting in a lower hydraulic pressure generated by the master cylinder and a weaker braking force generated by the brake. In order to achieve the hydraulic pressure required for braking without increasing the pedal input force, the lever ratio of the brake pedal can only be increased, but this will increase the pedal free travel. Summary of the Invention

[0005] The purpose of this invention is to provide a novel hydraulic braking structure for tricycles to solve the problems mentioned in the background section.

[0006] The objective of this utility model can be achieved through the following technical solutions:

[0007] A novel hydraulic service brake structure for a tricycle includes a main cylinder, a front cylinder chamber, and a rear cylinder chamber. The front cylinder chamber is located at the front end of the main cylinder, and the rear cylinder chamber is located at the rear end of the main cylinder. A rear cylinder guide pipe is connected to the connecting port on the outside of the rear cylinder chamber, and one end of the rear cylinder guide pipe is connected to a rear brake (first type). The output end of the rear brake (first type) is connected to a rear brake (second type) via a straight pipe.

[0008] In the aforementioned novel tricycle hydraulic braking structure, a front chamber oil guide pipe is connected to the connection port on the outer side of the front cylinder cavity, and one end of the front chamber oil guide pipe is connected to the front brake.

[0009] In the aforementioned novel hydraulic braking structure for tricycles, a liquid storage pipe is connected to the outside of the main cylinder, and one end of the liquid storage pipe is connected to a liquid storage tank.

[0010] In the aforementioned novel hydraulic braking structure for tricycles, a handbrake line is connected to the end of the rear cylinder chamber, and a handbrake brake component is connected to one end of the handbrake line.

[0011] In the aforementioned novel hydraulic braking structure for tricycles, a piston push rod is provided at the front end of the main cylinder, which is connected to the piston inside the front cylinder cavity, and one end of the piston push rod is connected to a pedal bracket.

[0012] In the aforementioned novel hydraulic braking structure for tricycles, a pedal transmission rod is movably mounted inside the pedal frame via a pin, and one end of the pedal transmission rod is connected to a brake pedal.

[0013] Compared with the prior art, the advantages of this utility model's novel hydraulic driving brake structure for tricycles are:

[0014] This application changes the arrangement of the two chambers of the master cylinder from parallel to series, so that the pressure difference between the two chambers of the master cylinder is not affected by the change in fluid consumption, making the braking force generated by the brake more linear and stable. The maximum hydraulic pressure output of the master cylinder can be doubled, and the brake can generate greater braking force, creating an opportunity to reduce the pedal leverage ratio, resulting in a smaller pedal free travel and a better braking feel. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the novel hydraulic driving brake structure for tricycles according to this utility model.

[0016] Figure 2 This is a schematic diagram of the structure of a traditional hydraulic vehicle braking system.

[0017] Figure 3 This is a side view of the novel hydraulic braking structure for tricycles according to this utility model.

[0018] In the diagram, 1. Master cylinder; 2. Rear cylinder chamber; 3. Front cylinder chamber; 4. Piston push rod; 5. Pedal bracket; 6. Pedal transmission rod; 7. Brake pedal; 8. Rear chamber oil guide pipe; 9. Rear brake one; 10. Rear brake two; 11. Straight pipe; 12. Handbrake line; 13. Handbrake component; 14. Front brake; 15. Reservoir. Detailed Implementation

[0019] 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.

[0020] A new type of hydraulic service brake structure for tricycles includes a main cylinder body 1, a front cylinder chamber 3, and a rear cylinder chamber 2. The front cylinder chamber 3 is located at the front end of the main cylinder body 1, and the rear cylinder chamber 2 is located at the rear end of the main cylinder body 1. A rear cylinder guide pipe 8 is connected to the connection port on the outside of the rear cylinder chamber 2, and one end of the rear cylinder guide pipe 8 is connected to a rear brake 9. The output end of the rear brake 9 is connected to a rear brake 10 through a straight pipe 11.

[0021] like Figure 1 , Figure 3 As shown, the present invention relates to a novel hydraulic braking structure for a tricycle. Specifically, a front cylinder guide pipe is connected to the connecting port on the outer side of the front cylinder cavity 3, and one end of the front cylinder guide pipe is connected to a front brake 14. The front brake 14, rear brake 9, and rear brake 10 of this application are respectively installed at the front and rear wheels of the vehicle body to brake the front and rear wheels of the tricycle. The front brake 14, rear brake 9, and rear brake 10 are commercially available devices known to those skilled in the art. Here, we are only using them without making any structural or functional improvements, and we will not elaborate further.

[0022] like Figure 1 , Figure 3 As shown, the present invention relates to a novel hydraulic braking structure for a tricycle. Specifically, a liquid storage pipe is connected to the outside of the main cylinder 1, and a liquid storage tank 15 is connected to one end of the liquid storage pipe. The liquid storage tank 15 stores the hydraulic oil inside the main cylinder 1.

[0023] like Figure 1 , Figure 3 As shown, the present invention relates to a novel hydraulic braking structure for a tricycle. Specifically, a handbrake line 12 is connected to the end of the rear cylinder chamber 2, and a handbrake brake component 13 is connected to one end of the handbrake line 12. The handbrake brake component 13 consists of a handbrake handle and a brake fluid box.

[0024] like Figure 1 , Figure 3 As shown, the present invention relates to a novel hydraulic braking structure for a tricycle. Specifically, the front end of the main cylinder 1 is provided with a piston push rod 4 that is connected to the piston inside the front cylinder chamber 3, and one end of the piston push rod 4 is connected to a pedal bracket 5.

[0025] like Figure 1 , Figure 3 As shown, the present invention relates to a novel hydraulic braking structure for a tricycle. Specifically, a pedal transmission rod 6 is movably mounted inside the pedal frame 5 via a pin. One end of the pedal transmission rod 6 is connected to a brake pedal 7. When braking, pressing the brake pedal 7 causes the pedal transmission rod 6 to rotate, which in turn causes the pedal transmission rod 6 to move the piston push rod 4. As a result, all the input force is converted into hydraulic pressure in the front chamber, which in turn causes the front brake 14 to generate braking force.

[0026] This utility model relates to a novel hydraulic service brake structure for tricycles, such as... Figure 1 The front cylinder chamber 3 and the rear cylinder chamber 2 of the main cylinder body 1 are arranged in series. The front chamber is connected to the front brake 14 to form the front brake circuit. The rear cylinder chamber 2 is connected to the rear brake 9 and then to the rear brake 10. The two rear brakes are connected through the straight pipe 11 to form the rear brake circuit. The piston push rod 4 of the pedal linkage acts directly on the piston of the front chamber of the main cylinder. All the input force is converted into hydraulic pressure in the front chamber, which makes the front brake 14 generate braking force. At the same time, the hydraulic pressure in the front chamber pushes the piston in the rear chamber to move, generating hydraulic pressure in the rear chamber, which makes the rear brake 9 and the rear brake 10 generate braking force.

[0027] Contents not described in detail herein are existing technologies known to those skilled in the art. The specific embodiments described herein are merely illustrative examples illustrating the spirit of this invention. Those skilled in the art to which this invention 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 invention or exceeding the scope defined by the appended claims.

Claims

1. A novel hydraulic braking structure for a tricycle, comprising a main cylinder (1), a front cylinder chamber (3), and a rear cylinder chamber (2), characterized in that, The front end of the main cylinder body (1) is provided with a front cylinder cavity (3), and the rear end of the main cylinder body (1) is provided with a rear cylinder cavity (2). A rear cylinder guide pipe (8) is connected to the connection port on the outside of the rear cylinder cavity (2). One end of the rear cylinder guide pipe (8) is connected to a rear brake one (9), and the output end of the rear brake one (9) is connected to a rear brake two (10) through a straight pipe (11).

2. The novel hydraulic braking structure for tricycles according to claim 1, characterized in that, The front cylinder cavity (3) is connected to a front cavity oil guide pipe at the connection port on the outside, and one end of the front cavity oil guide pipe is connected to a front brake (14).

3. The novel hydraulic braking structure for tricycles according to claim 1, characterized in that, The main cylinder (1) is connected to a liquid storage pipe on its outer side, and one end of the liquid storage pipe is connected to a liquid storage tank (15).

4. The novel hydraulic braking structure for tricycles according to claim 1, characterized in that, The rear cylinder cavity (2) is connected to a handbrake line (12), and one end of the handbrake line (12) is connected to a handbrake brake element (13).

5. The novel hydraulic braking structure for tricycles according to claim 1, characterized in that, The front end of the main cylinder (1) is provided with a piston push rod (4) that is connected to the piston inside the front cylinder cavity (3), and one end of the piston push rod (4) is connected to a pedal bracket (5).

6. The novel hydraulic service brake structure for a tricycle according to claim 5, characterized in that, The pedal frame (5) is movably mounted with a pedal transmission rod (6) via a pin, and one end of the pedal transmission rod (6) is connected to a brake pedal (7).

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