Hydraulic brake master cylinder stable in operation

Abstract

The utility model discloses a hydraulic brake master pump stable in operation, and relates to the technical field of brake master pumps. The hydraulic brake master pump stable in operation comprises a hydraulic brake master pump body, a push rod is arranged on the hydraulic brake master pump body, a mounting sleeve is fixedly connected to the left side of the hydraulic brake master pump body, the left end of the push rod slidably penetrates out of the inner wall of the mounting sleeve, a conical pipe is arranged on the left side of the mounting sleeve, and a second circular through hole communicated with the conical pipe is formed in the right side of the conical pipe; a first round through hole communicated with the conical pipe is formed in the right side of the conical pipe, the left end of the push rod sequentially penetrates through the second round through hole and the inner wall of the first round through hole in a sliding mode, and when the push rod passes through the first round through hole, dust or other impurities adhering to the surface of the push rod can be completely scraped by the edge of the conical pipe. The influence of dust or other impurities on the push rod is reduced, the operation stability of the hydraulic brake master cylinder is improved, the service life of the hydraulic brake master cylinder is prolonged, and the dust collecting box can collect the dust or other impurities.

Description

Technical Field

[0001] The utility model relates to the technical field of master cylinders, and particularly relates to a hydraulic master cylinder with stable operation. Background Art

[0002] A double-circuit hydraulic master cylinder with the publication number of CN205273446U. The utility model discloses a double-circuit hydraulic master cylinder, which includes a cylinder block. A front piston and a rear piston are sequentially arranged in the cylinder block. A return spring II is arranged between the front piston and the cylinder block. A baffle is arranged between the front piston and the rear piston. A return spring I is arranged between the baffle and the rear piston. The rear piston is provided with a push rod I, and the push rod I passes through the baffle and contacts the end face of the front piston. The utility model has the advantages of simple structure, easy processing, without changing the original vehicle system, and can greatly improve the driving safety of the vehicle.

[0003] However, for the above double-circuit hydraulic master cylinder, the sealing performance of the push rod that applies pressure to the piston in the pump body is insufficient, and some dust will enter the interior, resulting in the accumulation of dust impurities on the push rod. Prolonged use will cause an increase in the friction force of the push rod, wear the push rod, reduce its service life, and affect the service life of the master cylinder and the overall braking efficiency of the braking system. Content of the Utility Model

[0004] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art, and provide a hydraulic master cylinder with stable operation, which can solve the problem that the insufficient sealing performance of the push rod that applies pressure to the piston in the pump body will cause the accumulation of dust and other impurities on the push rod, and will affect the normal movement of the push rod over time, as well as the service life of the master cylinder and the overall braking efficiency of the braking system.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A hydraulic master cylinder with stable operation, including a hydraulic master cylinder, a push rod is arranged on the hydraulic master cylinder, and a mounting sleeve is fixedly connected to the left side of the hydraulic master cylinder;

[0006] Wherein, the left end of the push rod slides through the inner wall of the mounting sleeve, a tapered tube is arranged on the left side of the mounting sleeve, and a second circular through hole communicating with it is opened on the right side of the tapered tube;

[0007] Wherein, a first circular through hole communicating with it is opened on the right side of the tapered tube, and the left end of the push rod sequentially slides through the inner walls of the second circular through hole and the first circular through hole.

[0008] Preferably, a connecting tube is integrally formed on the left side of the tapered tube, and a circular hole communicating with it is opened on the left side of the connecting tube.

[0009] Preferably, the left end of the push rod slides through the inner wall of the circular hole.

[0010] Preferably, a dust collection box communicating with the lower surface of the connecting pipe is fixedly connected thereto.

[0011] Preferably, four mounting plates arranged in a cross shape are fixedly connected to the outer surface of the conical pipe, and mounting holes are formed in all four mounting plates.

[0012] Preferably, four screws arranged in a cross shape are fixedly connected to the left side of the mounting sleeve.

[0013] Preferably, nuts are arranged on all four screws.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] (1) For the hydraulic master cylinder with stable operation, when the push rod passes through the first circular through hole, the dust or other impurities adhered to the surface of the push rod will be scraped clean by the edge of the conical pipe, reducing the influence of dust or other impurities on the push rod, ensuring the service life of the push rod, and further improving the operation stability and service life of the hydraulic master cylinder. The dust collection box will collect the dust or other impurities.

[0016] (2) For the hydraulic master cylinder with stable operation, when the whole conical pipe needs to be replaced, the user only needs to disassemble the four nuts with external tools, and then the whole conical pipe can be disassembled, improving the convenience of replacing the whole conical pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The following further describes the present utility model in conjunction with the drawings and embodiments:

[0018] Figure 1 is a schematic structural diagram of the whole of the present utility model;

[0019] Figure 2 is a schematic connection diagram of the conical pipe and the connecting pipe of the present utility model;

[0020] Figure 3 is a schematic diagram of the surface of the conical pipe of the present utility model;

[0021] Figure 4 is a schematic connection diagram of the screw and the mounting sleeve of the present utility model.

[0022] Reference numerals: 1, hydraulic master cylinder; 2, mounting sleeve; 3, connecting pipe; 4, dust collection box; 5, circular hole; 6, push rod; 7, conical pipe; 8, mounting plate; 9, mounting hole; 10, screw; 11, nut; 12, first circular through hole; 13, second circular through hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the drawings. The role of the drawings is to supplement the description of the text part of the specification, enabling people to intuitively and vividly understand each technical feature and the overall technical solution of the present utility model. However, it should not be construed as a limitation on the protection scope of the present utility model.

[0024] In the description of the present utility model, it should be understood that with regard to the orientation description, such as the orientation or positional relationship indicated by up, down, front, back, left, right, etc., it is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation on the present utility model.

[0025] In the description of the present utility model, greater than, less than, exceeding, etc. are understood as not including the number itself, and above, below, within, etc. are understood as including the number itself. If there is a description of first and second, it is only for the purpose of distinguishing technical features and cannot be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or the sequence relationship of the indicated technical features.

[0026] In the description of the present utility model, unless otherwise clearly defined, words such as setting, installing, connecting, etc. should be understood in a broad sense. Those skilled in the art can reasonably determine the specific meanings of the above words in the present utility model in combination with the specific content of the technical solution.

[0027] Please refer to Figures 1-4 , the present utility model provides a technical solution: a hydraulic brake master cylinder with stable operation, including a hydraulic brake master cylinder 1, a push rod 6 is arranged on the hydraulic brake master cylinder 1, and an installation sleeve 2 is fixedly connected to the left side of the hydraulic brake master cylinder 1;

[0028] Among them, the left end of the push rod 6 slides through the inner wall of the installation sleeve 2, a tapered tube 7 is arranged on the left side of the installation sleeve 2, and a second circular through hole 13 communicating with it is opened on the right side of the tapered tube 7;

[0029] Among them, a first circular through hole 12 communicating with it is opened on the right side of the tapered tube 7, and the left end of the push rod 6 sequentially slides through the inner walls of the second circular through hole 13 and the first circular through hole 12.

[0030] Furthermore, a connecting tube 3 is integrally formed on the left side of the tapered tube 7, and a circular hole 5 communicating with it is opened on the left side of the connecting tube 3.

[0031] Furthermore, the left end of the push rod 6 slides through the inner wall of the circular hole 5.

[0032] Further, a dust collection box 4 communicating with the lower surface of the connecting pipe 3 is fixedly connected thereto.

[0033] Further, four mounting plates 8 arranged in a cross shape are fixedly connected to the outer surface of the conical pipe 7, and mounting holes 9 are formed in all four mounting plates 8.

[0034] Further, four screws 10 arranged in a cross shape are fixedly connected to the left side of the mounting sleeve 2.

[0035] Further, nuts 11 are arranged on all four screws 10.

[0036] Further, when using a hydraulic brake master cylinder with stable operation, when the hydraulic brake master cylinder 1 is working, its push rod 6 will continuously move. During the movement of the push rod 6, if dust or other impurities adhere to the surface of the push rod 6, when the push rod 6 passes through the first circular through hole 12, the dust or other impurities adhering to the surface of the push rod 6 will be scraped clean by the edge of the conical pipe 7, reducing the influence of dust or other impurities on the push rod 6, ensuring the service life of the push rod 6, and further improving the operation stability and service life of the hydraulic brake master cylinder. The dust collection box 4 will collect the dust or other impurities.

[0037] Further, when the whole conical pipe 7 needs to be replaced, the user only needs to disassemble the four nuts 11 with external tools, and the whole conical pipe 7 can be disassembled, improving the convenience of replacing the whole conical pipe 7.

[0038] Working principle: When using a hydraulic brake master cylinder with stable operation, when the hydraulic brake master cylinder 1 is working, its push rod 6 will continuously move. During the movement of the push rod 6, if dust or other impurities adhere to the surface of the push rod 6, when the push rod 6 passes through the first circular through hole 12, the dust or other impurities adhering to the surface of the push rod 6 will be scraped clean by the edge of the conical pipe 7, reducing the influence of dust or other impurities on the push rod 6, ensuring the service life of the push rod 6, and further improving the operation stability and service life of the hydraulic brake master cylinder. The dust collection box 4 will collect the dust or other impurities.

[0039] Further, when the whole conical pipe 7 needs to be replaced, the user only needs to disassemble the four nuts 11 with external tools, and the whole conical pipe 7 can be disassembled, improving the convenience of replacing the whole conical pipe 7.

[0040] The above has described the embodiments of the present invention in detail with reference to the drawings. However, the present invention is not limited to the above embodiments, and various changes can be made without departing from the gist of the present invention within the knowledge scope of those of ordinary skill in the art.

Claims

1. A master cylinder for hydraulic braking with stable operation, characterized in that, Comprising: A master cylinder for hydraulic braking (1), on which a push rod (6) is provided; The left side of the master cylinder for hydraulic braking (1) is fixedly connected with a mounting sleeve (2); Among them, the left end of the push rod (6) slidably penetrates through the inner wall of the mounting sleeve (2), and a tapered pipe (7) is arranged on the left side of the mounting sleeve (2). A second circular through hole (13) communicating with it is opened on the right side of the tapered pipe (7); Among them, a first circular through hole (12) communicating with it is opened on the right side of the tapered pipe (7), and the left end of the push rod (6) sequentially slidably penetrates through the inner walls of the second circular through hole (13) and the first circular through hole (12).

2. A master cylinder for hydraulic braking with stable operation according to claim 1, characterized in that: A connecting pipe (3) is integrally formed on the left side of the tapered pipe (7), and a circular hole (5) communicating with it is opened on the left side of the connecting pipe (3).

3. A master cylinder for hydraulic braking with stable operation according to claim 1, characterized in that: The left end of the push rod (6) slidably penetrates through the inner wall of the circular hole (5).

4. A master cylinder for hydraulic braking with stable operation according to claim 2, characterized in that: A dust collection box (4) communicating with it is fixedly connected to the lower surface of the connecting pipe (3).

5. A master cylinder for hydraulic braking with stable operation according to claim 1, characterized in that: Four mounting plates (8) arranged in a cross shape are fixedly connected to the outer surface of the tapered pipe (7), and mounting holes (9) are opened on all four mounting plates (8).

6. A master cylinder for hydraulic braking with stable operation according to claim 1, characterized in that: Four screws (10) arranged in a cross shape are fixedly connected to the left side of the mounting sleeve (2).

7. A master cylinder for hydraulic braking with stable operation according to claim 6, characterized in that: Nuts (11) are arranged on all four screws (10).

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