A connecting structure of a brake master cylinder body and a reservoir

Abstract

The utility model relates to a kind of connecting structure of brake master cylinder body and liquid storage tank, belong to the brake master cylinder of automobile brake system technical field area with liquid storage tank assembly.Liquid storage tank is directly installed on the oil inlet of main cylinder by oil outlet, and the two clamping claws of the bottom of liquid storage tank are respectively connected with the both ends of pin on main cylinder body.Optimal feature is novel structure, cancels fixed screw, pin is directly cast on main cylinder blank, directly connected with liquid storage tank, pin is integrally formed with main cylinder body, can reduce the number of parts, reduce assembly complexity, high connection strength, good connection sealing, enhance anti-vibration capacity, avoid the risk of brake failure caused by screw loosening, can guarantee vehicle safety performance, reduce cost, improve production efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of automotive braking system technology, specifically relating to a brake master cylinder assembly with a reservoir, and more specifically to a connection structure between the brake master cylinder body and the reservoir. Background Technology

[0002] The brake master cylinder assembly with reservoir is a major sub-assembly of the automotive braking system. The master cylinder assembly is the core component of the system, primarily responsible for converting the force applied by the driver's brake pedal into hydraulic pressure. The reservoir, typically mounted above the master cylinder, stores brake fluid and replenishes it as needed. Screws are used to secure the reservoir to the master cylinder. The connection between them allows brake fluid to flow between the master cylinder and the reservoir while ensuring a tight seal throughout the system.

[0003] The reservoir is directly installed on the master cylinder inlet via the outlet, allowing brake fluid to flow freely and replenish the fluid level in the master cylinder. When the brakes are applied, the master cylinder piston moves and may require more brake fluid; the reservoir replenishes the fluid in time to prevent air from entering the system and causing brake failure.

[0004] Currently, the brake master cylinder 2 and the reservoir 1 are fixedly connected using screws 3. Figure 5 As shown, this fixing method may cause the screws to gradually loosen during vehicle operation if the road is bumpy and vibrates continuously, which may damage the sealing of the connection and cause brake leakage. If the fixing screws are not tightened to the standard torque (too loose or too tight) when installing, the screw threads will wear faster and the connection will fail. Summary of the Invention

[0005] This utility model provides a connection structure between the brake master cylinder and the reservoir to solve the problem that when the brake master cylinder and the reservoir are fixedly connected by screws, the screws may loosen or the screw threads may wear easily, leading to connection failure.

[0006] The technical solution adopted by this utility model is as follows: it includes a liquid storage tank and a main cylinder body. The liquid storage tank is directly installed on the oil inlet of the main cylinder through the oil outlet. The two claws at the bottom of the liquid storage tank are respectively connected to the two ends of the pin on the main cylinder body.

[0007] The liquid storage tank has two claws, an oil outlet, and a pin mounting hole at the bottom. The two claws are located in the middle of the oil outlet, and each claw has a mounting hole.

[0008] The front end of the claw is angled to directly guide the pin into the pin mounting hole.

[0009] A pin is cast on the main cylinder body for connecting to the liquid storage tank, and there are oil inlets on both sides of the pin.

[0010] The advantages of this utility model are its novel structure, which eliminates the need for fixing screws. The pin is directly cast onto the main cylinder blank and directly connected to the liquid storage tank. The pin is integrally formed with the main cylinder body, which reduces the number of parts, lowers the assembly complexity, provides high connection strength and good connection sealing, enhances vibration resistance, avoids the risk of brake failure due to loose screws, ensures vehicle safety performance, reduces costs, and improves production efficiency. Attached Figure Description

[0011] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 This is a schematic diagram of the structure of the liquid storage tank of this utility model;

[0014] Figure 3 yes Figure 2 AA section view;

[0015] Figure 4 This is a schematic diagram of the main cylinder body of this utility model;

[0016] Figure 5 This is a schematic diagram of the existing connection structure between the brake master cylinder and the reservoir. Detailed Implementation

[0017] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0018] See Figure 1 It includes a liquid storage tank 1 and a main cylinder body 2. The liquid storage tank 1 is directly installed on the oil inlet 202 of the main cylinder body 2 through the oil outlet 102. The two claws 101 at the bottom of the liquid storage tank 1 are respectively connected to the two ends of the pin 201 on the main cylinder body 2.

[0019] See Figure 2 The liquid storage tank 1 has two claws 101, an oil outlet 102 and a pin mounting hole 103 at the bottom. The two claws 101 are located in the middle of the oil outlet 102, and each claw 101 has a mounting hole 103.

[0020] See Figure 3The front end of the claw 101 is angled 104 to effectively guide the pin directly into the pin mounting hole 103, which improves the assemblability of the product by transitioning with the liquid storage tank.

[0021] See Figure 4 A pin 201 is cast on the main cylinder 2 by casting process, and is integrally formed with the main cylinder. The pin 201 is used to connect with the liquid storage tank 1. There are oil inlets 202 on both sides of the pin 201.

[0022] Working principle

[0023] The pin 201 is directly formed on the main cylinder 2 using a casting process, and a sealed connection is achieved by transition fitting with the connection hole 103 of the reservoir 1. At the same time, the bottom of the clamp 101 at the reservoir connection position is made into an angle 104, which can smoothly press the reservoir mounting hole 103 into the pin 201, solving the problem of jamming and difficulty in pressing in during the assembly process. It eliminates the need to use fixing screws to connect the main cylinder and the reservoir, and does not require additional processing of pin holes. Using this utility model can avoid brake failure caused by insufficient brake fluid due to loose fixing screws and oil leakage.

[0024] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the scope of protection of the present invention is not limited to the specific details in the above embodiments. Within the scope of the technical concept of the present invention, any equivalent substitutions or modifications made by those skilled in the art based on the technical solution and the inventive concept of the present invention within the scope of the technical concept disclosed in the present invention shall all fall within the scope of protection of the present invention.

Claims

1. A connection structure between a brake master cylinder and a reservoir, characterized in that: It includes a liquid storage tank and a main cylinder body. The liquid storage tank is directly installed on the oil inlet of the main cylinder through the oil outlet. The two claws at the bottom of the liquid storage tank are respectively connected to the two ends of the pin on the main cylinder body.

2. The connection structure between the brake master cylinder and the reservoir according to claim 1, characterized in that: The liquid storage tank has two claws, an oil outlet, and a pin mounting hole at the bottom. The two claws are located in the middle of the oil outlet, and each claw has a mounting hole.

3. The connection structure between the brake master cylinder and the reservoir according to claim 2, characterized in that: The front end of the claw is angled to directly guide the pin into the pin mounting hole.

4. The connection structure between the brake master cylinder and the reservoir according to claim 1, characterized in that: A pin is cast on the main cylinder body for connecting to the liquid storage tank, and there are oil inlets on both sides of the pin.

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