Vertical brake master cylinder

Abstract

This utility model relates to the field of brake master cylinder technology, and in particular to a vertical brake master cylinder; it includes a pump body, a piston chamber inside the pump body, an oil inlet connected to one end of the piston chamber and an oil outlet connected to the other end, an oil reservoir connected to the piston chamber on the pump body, a piston mechanism installed in the piston chamber, mounting ears on both sides of the lower end of the pump body, the piston chamber is axially arranged in a vertical direction, the oil inlet is located on the side of the piston chamber near the mounting ears, and the oil reservoir is located on the side of the piston chamber near the oil outlet; this utility model improves upon the prior art by setting the piston chamber axially in a vertical direction, significantly reducing the space occupied by the brake master cylinder in the horizontal direction, making it suitable for installation scenarios with limited horizontal space, such as compact cars and special vehicles.

Description

Technical Field

[0001] This utility model relates to the field of brake master cylinder technology, and in particular to a vertical brake master cylinder. Background Technology

[0002] In a hydraulic braking system, the master cylinder plays a crucial role. Its main function is to convert the mechanical force generated by the driver pressing the brake pedal into hydraulic pressure, which is then transmitted through the brake lines to the wheel cylinders, thereby achieving vehicle braking.

[0003] Currently, most brake master cylinders on the market are installed horizontally. This installation method has certain limitations: First, the structural design of a horizontal brake master cylinder requires a large amount of space in the horizontal direction. When designing a brake master cylinder, to ensure the performance of hydraulic conversion and transmission, its internal piston chamber and other structures need a certain length and width, resulting in a large overall horizontal dimension. However, in some vehicle designs, horizontal space is very limited, such as some compact cars and special vehicles. Because of the large horizontal space occupied, the installation of a horizontal brake master cylinder on these vehicles is greatly restricted, or even impossible, thus affecting its applicability to specific types of vehicles.

[0004] Therefore, it is necessary to improve upon the shortcomings of the existing technologies mentioned above. Summary of the Invention

[0005] The technical problem to be solved by this utility model is to provide a vertical brake master cylinder to address the shortcomings of the prior art, thereby solving the problems of large horizontal space occupation, limited installation and poor applicability of the horizontal brake master cylinder in the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a vertical brake master cylinder, comprising a pump body, a piston chamber provided within the pump body, an oil inlet connected to one end of the piston chamber and an oil outlet connected to the other end, an oil reservoir connected to the piston chamber on the pump body, a piston mechanism installed within the piston chamber, mounting ears provided on both sides of the lower end of the pump body, the piston chamber being vertically oriented, the oil inlet located on the side of the piston chamber near the mounting ears, and the oil reservoir located on the side of the piston chamber near the oil outlet.

[0007] By adopting the above technical solution, the piston chamber is set vertically and the oil reservoir is set on one side of the upper end of the piston chamber. This changes the structural layout of the traditional horizontal brake master cylinder, which can directly reduce the space occupied in the horizontal direction and significantly reduce the space occupied by the brake master cylinder in the horizontal direction, making it suitable for installation scenarios with limited horizontal space, such as compact cars and special vehicles.

[0008] A further feature of the above technical solution is that the mounting ear is provided with a mounting hole, which allows the pump body to be fixedly mounted on the vehicle body by passing screws through the mounting hole.

[0009] Using the above technical solution, the mounting hole provides a connection structure for fixing the pump body to the vehicle body, and the screws, in conjunction with the mounting hole, can achieve stable installation of the pump body.

[0010] A further provision of the above technical solution is that the piston chamber is provided with an oil inlet channel and an oil return channel that are connected to the oil storage tank.

[0011] By adopting the above technical solution, the oil inlet channel can realize the supply of oil from the oil tank to the piston chamber, and the oil return channel can realize the return flow of oil from the piston chamber to the oil tank, thus ensuring the stable oil circulation of the hydraulic system.

[0012] A further configuration of the above technical solution is as follows: the piston mechanism includes a piston and a return spring, the piston is slidably connected to one end of the piston chamber near the oil inlet, one end of the return spring abuts against the piston and the other end abuts against the bottom of the piston chamber.

[0013] By adopting the above technical solution, the piston seal sliding can ensure the effective establishment of hydraulic pressure, and the return spring can push the piston back after braking ends, preparing for the next braking and ensuring the continuity of braking operation.

[0014] A further provision of the above technical solution is that the piston chambers are configured as two parallel chambers, each with a corresponding piston mechanism installed inside.

[0015] By adopting the above technical solution, the two parallel piston chambers and piston mechanism can form a dual-circuit braking structure, which improves the safety of the braking system. Even if one circuit fails, the other circuit can still partially realize the braking function.

[0016] A further feature of the above technical solution is that a cap is detachably connected to the upper end of the oil storage tank.

[0017] By adopting the above technical solution, the detachable cover makes it easy to open the oil tank for oil replenishment, inspection or cleaning, reducing maintenance costs.

[0018] A further provision of the above technical solution is that an oil pipe connector is installed at the oil outlet.

[0019] Using the above technical solution, the oil pipe joint can quickly connect the oil outlet to the brake line, simplifying the installation process, while ensuring the sealing of oil transmission and preventing leakage.

[0020] A further provision of the above technical solution is as follows: the pump body is provided with a core-pulling countersunk hole on one side of the piston chamber for core-pulling of the oil inlet and return channels, a sealing cover is installed in the core-pulling countersunk hole, and a sealing ring is provided under the sealing cover.

[0021] Using the above technical solution, the core-pulling countersunk hole is a necessary structure in the processing of the oil inlet and return channels. The sealing cover and sealing ring can seal the core-pulling countersunk hole to prevent oil leakage from the countersunk hole and ensure the sealing performance of the hydraulic system.

[0022] The beneficial effects achieved by this utility model are as follows: by setting the piston chamber axially in the vertical direction, the space occupied by the brake master cylinder in the horizontal direction is significantly reduced, making it adaptable to installation scenarios with limited horizontal space, such as compact cars and special vehicles; without changing the basic function and performance of the brake master cylinder, the problem of large horizontal space occupation in the prior art is solved by changing the structural layout, thereby improving the installation applicability of the brake master cylinder. Attached Figure Description

[0023] Figure 1 This is a structural schematic diagram of an embodiment of the present utility model; Figure 2 This is an exploded structural diagram of an embodiment of the present invention; Figure 3 This is a cross-sectional view of the pump body in an embodiment of this utility model.

[0024] Reference numerals in the attached drawings: 1. Pump body; 2. Piston chamber; 21. Oil inlet channel; 22. Oil return channel; 3. Oil inlet; 4. Oil outlet; 41. Oil pipe joint; 5. Oil reservoir; 51. Cover; 6. Piston mechanism; 61. Piston; 62. Return spring; 7. Mounting lug; 71. Mounting hole; 8. Core pulling countersunk hole; 9. Sealing cover; 10. Sealing ring. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] like Figure 1-3As shown, a vertical brake master cylinder includes a pump body 1, with a piston chamber 2 inside the pump body 1. One end of the piston chamber 2 is connected to an oil inlet 3, and the other end is connected to an oil outlet 4. An oil pipe connector 41 is installed at the oil outlet 4 for connecting to the brake line. An oil reservoir 5 connected to the piston chamber 2 is provided on the pump body 1. A cover 51 is detachably connected to the upper end of the oil reservoir 5. Brake fluid can be added to the oil reservoir 5 by opening the cover 51. Mounting ears 7 are provided on both sides of the lower end of the pump body 1. Mounting ears 7 have mounting holes 71. The pump body 1 can be fixedly mounted on the vehicle body by screws passing through the mounting holes 71. The piston chamber 2 is arranged vertically, with the oil inlet 3 located on the side of the piston chamber 2 near the mounting ears 7, and the oil reservoir 5 located on the side of the piston chamber 2 near the oil outlet 4, thereby reducing the horizontal space occupied.

[0027] like Figure 1-3 As shown, a piston mechanism 6 is installed in the piston chamber 2. The piston mechanism 6 includes a piston 61 and a return spring 62. The piston 61 is slidably connected to one end of the piston chamber 2 near the oil inlet 3. One end of the return spring 62 abuts against the piston 61 and the other end abuts against the bottom of the piston chamber 2. When braking, the piston 61 compresses the return spring 62 and moves towards the bottom of the piston chamber 2 to establish hydraulic pressure. After braking, the return spring 62 pushes the piston 61 to return to its original position.

[0028] like Figure 1-3 As shown, the piston chamber 2 is provided with an oil inlet channel 21 and an oil return channel 22 in the middle, which are connected to the oil storage tank 5. The oil inlet channel 21 is used to supply oil from the oil storage tank 5 to the piston chamber 2, and the oil return channel 22 is used to return oil from the piston chamber 2 to the oil storage tank 5. The pump body 1 is provided with a core-pulling countersunk hole 8 on one side of the piston chamber 2 for core-pulling of the oil inlet channel 21 and the oil return channel 22. A sealing cover 9 is installed in the core-pulling countersunk hole 8, and a sealing ring 10 is provided under the sealing cover 9. The sealing ring 10 can enhance the sealing performance between the sealing cover 9 and the core-pulling countersunk hole 8 and prevent oil leakage.

[0029] like Figure 1-3 As shown, the piston chamber 2 can be configured as two parallel chambers, each with a corresponding piston mechanism 6 installed inside, forming a dual-circuit braking structure to improve braking safety.

[0030] This vertical brake master cylinder significantly reduces the horizontal space occupied by the brake master cylinder by setting the piston chamber 2 axially in the vertical direction, making it suitable for installation scenarios with limited horizontal space, such as compact cars and special vehicles. Without changing the basic function and performance of the brake master cylinder, the structural layout has been changed to solve the problem of large horizontal space occupation in the prior art, thus improving the installation applicability of the brake master cylinder.

Claims

1. A vertical brake master cylinder, comprising a pump body, wherein a piston chamber is provided within the pump body, one end of the piston chamber is connected to an oil inlet and the other end is connected to an oil outlet, an oil reservoir connected to the piston chamber is provided on the pump body, and a piston mechanism is installed within the piston chamber, characterized in that: The pump body has mounting ears on both sides at the lower end, the piston chamber is arranged vertically, the oil inlet is located on the side of the piston chamber near the mounting ears, and the oil storage tank is located on the side of the piston chamber near the oil outlet.

2. A vertical brake master cylinder according to claim 1, characterized in that: The mounting ear is provided with mounting holes, which can be used to fix the pump body to the vehicle body by passing screws through the mounting holes.

3. A vertical brake master cylinder according to claim 2, characterized in that: The piston chamber is provided with an oil inlet channel and an oil return channel that are connected to the oil reservoir.

4. A vertical brake master cylinder according to claim 3, characterized in that: The piston mechanism includes a piston and a return spring. The piston is slidably connected to one end of the piston chamber near the oil inlet. One end of the return spring abuts against the piston, and the other end abuts against the bottom of the piston chamber.

5. A vertical brake master cylinder according to any one of claims 1-4, characterized in that: The piston chambers are configured as two parallel chambers, each containing a corresponding piston mechanism.

6. A vertical brake master cylinder according to claim 5, characterized in that: The upper end of the oil storage tank is detachably connected to a cover.

7. A vertical brake master cylinder according to claim 6, characterized in that: The oil outlet is equipped with an oil pipe connector.

8. A vertical brake master cylinder according to claim 7, characterized in that: The pump body has a core-pulling countersunk hole on one side of the piston chamber for core-pulling of the oil inlet and return channels. A sealing cover is installed in the core-pulling countersunk hole, and a sealing ring is provided under the sealing cover.

Images