Clutch master cylinder and automobile

Abstract

The utility model relates to a clutch master cylinder and an automobile, the clutch master cylinder comprises a clutch master cylinder main body part, a quick return structure with at least two springs, and an air filtering structure, through the arrangement of the air filtering structure and the quick return structure, the efficient work of the clutch master cylinder is realized; the air filtering structure effectively prevents external impurities from entering the oil cup body, cleanliness of a hydraulic system is guaranteed, and the service life of the system is prolonged. Meanwhile, the quick return structure can drive the piston to quickly return through the design of at least two springs, so that the response speed and the working efficiency of the clutch master cylinder are remarkably improved. In addition, the position design of the compensation hole enables the oil cup body and the liquid storage space to achieve rapid liquid supplementing, the stability of a hydraulic system is guaranteed, and the overall performance of the clutch is further optimized.

Description

Technical Field

[0001] The utility model relates to the technical field of automotive clutch master cylinders, and particularly relates to a clutch master cylinder and an automobile thereof. Background Art

[0002] The conventional clutch master cylinder is internally provided with a single spring. Due to the limited internal structural space of the master cylinder, a large return force cannot be provided. When the driver operates the clutch pedal, the clutch cannot return quickly, which affects the driver's operation speed. Moreover, dust easily enters the interior of the clutch master cylinder, affecting the functional use effect of the clutch master cylinder and shortening the service life of the clutch master cylinder. Summary of the Utility Model

[0003] In order to solve the above technical problems, the utility model provides a clutch master cylinder and an automobile thereof.

[0004] The purpose of the utility model is achieved through the following technical solutions:

[0005] In the first aspect, a clutch master cylinder is provided, which includes:

[0006] The main body part of the clutch master cylinder, including a pump body, a piston assembly and an oil cup body. The pump body has a liquid outlet hole, a compensation hole and a cavity whose length extends along the horizontal transverse direction. The liquid outlet hole and the compensation hole of the pump body are communicated with the cavity, and the compensation hole is located at the top of the pump body; the piston assembly is arranged in the cavity of the pump body and extends along the horizontal direction in length. The piston assembly includes a piston, and the oil cup body is arranged at the compensation hole of the pump body;

[0007] An air filtering structure, which is arranged on the oil cup body and communicated with the interior of the oil cup body;

[0008] A quick return structure that drives the piston to move horizontally in the transverse direction and has at least two springs, which is arranged on the pump body and connected to the piston assembly;

[0009] The piston and the cavity of the pump body together form a liquid storage space whose internal space changes due to the horizontal transverse movement of the piston. The liquid outlet hole of the pump body is communicated with the liquid storage space; the compensation hole is located on the horizontal transverse movement path of the side wall of the piston, and the compensation hole serves as a liquid replenishing channel for the internal communication between the oil cup body and the liquid storage space.

[0010] In some embodiments, when the clutch master cylinder is in a non-compensated state, the piston in the piston assembly is in a position where the side wall of the piston completely blocks the liquid replenishing channel through the quick return structure;

[0011] When the master clutch cylinder is in the compensation state, the piston in the piston assembly is located at a position where the side wall of the piston is away from the liquid replenishing channel through the quick return structure, and the liquid replenishing channel is in an open state.

[0012] In some embodiments, the quick return structure includes: a first return spring connecting the piston to the inner wall of the cavity of the pump body, and the first return spring is horizontally placed and located in the liquid storage space.

[0013] In some embodiments, the air filtering structure includes:

[0014] An air vent pipe, connected to the oil cup body and internally communicating; and

[0015] A filter element, arranged on the air vent pipe.

[0016] In some embodiments, the quick return structure further includes:

[0017] A push rod whose rod length extends horizontally to the cavity of the pump body, and is located away from the liquid storage space relative to the piston;

[0018] An elastic dust-proof cover assembly arranged on the pump body, sleeved on the push rod;

[0019] A spring assembly providing buffering for the horizontal movement of the push rod, with two ends respectively connected to the elastic dust-proof cover assembly and the pump body, and the spring assembly is located around the push rod, and

[0020] The piston is on the path of the horizontal movement of the push rod.

[0021] In some embodiments, the elastic dust-proof cover assembly includes:

[0022] A spring support seat, fixedly sleeved on the push rod;

[0023] A dust-proof cover that relies on a spring to expand and contract in the horizontal direction, with two ends respectively connected to the spring support seat and the pump body.

[0024] In a second aspect, there is provided a vehicle, which includes the master clutch cylinder provided in the first aspect.

[0025] The beneficial effects of the present utility model are as follows: By providing an air filtration structure and a quick return structure, the present utility model realizes the efficient operation of the clutch master cylinder. The air filtration structure effectively prevents external impurities from entering the oil cup body, ensuring the cleanliness of the hydraulic system and extending the service life of the system. At the same time, the quick return structure, through the design of at least two springs, can drive the piston to quickly return to its original position, significantly improving the response speed and working efficiency of the clutch master cylinder. In addition, the position design of the compensation hole enables the oil cup body and the liquid storage space to achieve rapid liquid replenishment, ensuring the stability of the hydraulic system and further optimizing the overall performance of the clutch. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0027] Figure 1 FIG. 1 is a schematic structural diagram of a clutch master cylinder provided by the present utility model in an embodiment;

[0028] Figure 2 FIG. 2 is a schematic structural diagram of the part where the air filtration structure is located provided by the present utility model in an embodiment;

[0029] Figure 3 FIG. 3 is a schematic structural diagram of a part of the quick return structure provided by the present utility model in an embodiment. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0030] In order to better understand the technical solutions of the present application, the following will describe the embodiments of the present application in detail with reference to the drawings.

[0031] The present utility model provides a clutch master cylinder, which includes a clutch master cylinder main body part, a quick return structure, and an air filtration structure. Among them, the quick return structure solves the problem that a conventional clutch master cylinder has a single spring built-in. Due to the limited internal structure space of the master cylinder, it is impossible to provide a large return force. When the driver operates the clutch pedal, the clutch cannot quickly return to its original position, affecting the driver's operation speed. The air filtration structure solves the problem that dust easily enters the interior of the clutch master cylinder, affecting the functional use effect and shortening the service life of the clutch master cylinder. This clutch master cylinder is applied to automobiles.

[0032] As Figure 1 — Figure 3 shown, in an embodiment, a clutch master cylinder is provided, which includes a clutch master cylinder main body part, a quick return structure, and an air filtration structure.

[0033] The main body part of the clutch master cylinder includes a pump body 1, a piston assembly and an oil cup body. The length of the pump body 1 extends along the horizontal transverse direction. There is a cavity 20 inside the pump body 1 with a length extending along the horizontal transverse direction. The right end of the cavity 20 is located at the right end of the pump body 1, and the left end of the cavity 20 is close to the left end of the pump body 1. The pump body 1 also has a liquid outlet hole 21 and a compensation hole 22. Among them, the liquid outlet hole 21 is located at the left end of the pump body, and the compensation hole 22 is located at the top of the pump body. Both the liquid outlet hole 21 and the compensation hole 22 communicate with the cavity 20 inside the pump body. The communication part of the liquid outlet hole with the cavity 20 is located on the left side wall of the cavity 20. The aperture of the liquid outlet hole 21 at the communication part with the cavity 20 is smaller than the radial length of the cavity 20 at this position. A first return spring 2 with a length extending along the horizontal transverse direction is arranged in the cavity 20 of the pump body 1. The left end of the first return spring 2 is connected to the left side wall of the cavity 20 in the pump body, and the right end of the first return spring 2 is connected to the piston 5. The piston 5 is part of the piston assembly, and the first return spring 2 is part of the quick return structure. A main leather ring 6 is provided on the outer peripheral wall of the piston 5, so that the piston 5 is slidably connected in a sealed manner on the inner side wall of the cavity 20 in the pump body 1. The length of the outer top wall of the piston 5 is not less than the aperture of the compensation hole 22 in the pump body 1, and the compensation hole 22 is located on the movement path of the piston 5. A gasket 8 is connected to the right end of the piston 5, and a fixing seat 10 with a hole penetrating in the horizontal transverse direction is connected to the gasket 8.

[0034] The oil cup body is arranged at the compensation hole 22 of the pump body 1. The oil cup body includes an oil cup 3 and a cup cover 17. The oil cup 3 is installed at the compensation hole 22 through a sealing sleeve 4, and the cup cover 17 is implemented at the opening of the oil cup 3 through a sealing gasket 18. An air filtering structure 19 is installed on the cup cover 17, and the air filtering structure 19 communicates with the inside of the oil cup 3.

[0035] As Figure 2 shown, in an embodiment, the air filtering structure 19 includes an air pipe 192, a fixed joint 191, a fixed seat 193 and a filter element 194. One end of the air pipe 192 is connected to the fixed joint 191 and the cup cover 17, and the other end is connected to the filter element 194 through the fixed seat. The air filtering structure 19 is installed by putting the fixed joint 191 into the oil cup cover 17 and fixing and tightening it. The filter element 194 is sintered from copper particles at high temperature into a cylindrical shape. The particles are spherical. After forming, the particles are arranged in an irregular contact. There are gaps between the spherical particles, and air can freely pass through the filter element 194, and impurities and dust are not easy to enter. The fixed seat 193 is made of copper H59 and is manufactured by die forming. The function of the fixed seat 193 is to place the filter element 194 in it without falling off. The inner hole size of the fixed seat 193 is designed according to the outer diameter size of the filter element 194, so that the filter element 194 is installed in the fixed seat 193. One end of the fixed seat 193 is designed with a tapered inclined surface, and the filter element 194 is fixed by a riveting process.

[0036] The quick return structure is arranged on the pump body 1 and connected to the piston assembly. The quick return structure further includes a push rod 14 and a dust cover 12 that expands and contracts in the horizontal lateral direction by relying on a spring. The push rod 14 is elastically connected to the pump body 1 in the horizontal lateral direction. The rod length of the push rod 14 extends along the horizontal lateral direction of the pump body 1, and the left end passes through the right end opening of the cavity 20 of the pump body and extends into the cavity 20. The piston 5 is on the horizontal movement path of the left end of the push rod 14. The push rod 14 is relatively far from the piston 5 in terms of position from the liquid storage space.

[0037] The elastic dust cover assembly includes a spring support seat 13 and a dust cover 12 that expands and contracts in the horizontal lateral direction by relying on a spring. A spring support seat 13 is fixedly sleeved on the push rod 14. The spring support seat 13 is located to the right of the fixed seat 10. A second return spring 11 is connected between the spring support seat 13 and the fixed seat 10. The second return spring 11 is located on the periphery of the push rod 14.

[0038] The right end of the dust cover 12 is connected to the spring support seat 13 and the left end is connected to the pump body 1. The dust cover 12 is located on the periphery of the second return spring 11. The dust cover 12, the spring support seat 13 and the pump body 1 together form a dust-proof structure, so that the opening area between the spring support seat 13 and the right port of the pump body 1 is isolated from external impurities through the dust cover 12. The left side wall of the snap ring for hole 9 is located on the right side wall of the gasket 8. The outer side wall of the snap ring for hole 9 is clamped to the inner wall of the pump body 1 near the right port of the pump body 1. The connecting fork 16 is connected to the right end of the push rod 14 through a nut 15.

[0039] The piston 5 and the cavity 20 of the pump body 1 together form a liquid storage space whose internal space changes due to the horizontal lateral movement of the piston 5. The liquid outlet hole 21 of the pump body 1 is communicated with the liquid storage space. The compensation hole 22 is located on the horizontal lateral movement path of the side wall of the piston 5. The compensation hole 22 serves as a liquid replenishing channel for the oil cup body to communicate with the inside of the liquid storage space.

[0040] When the clutch master cylinder is in a non-compensated state, the piston in the piston assembly is in a position where the side wall of the piston completely blocks the liquid replenishing channel through the quick return structure;

[0041] When the clutch master cylinder is in a compensated state, the piston in the piston assembly is in a position where the side wall of the piston is far from the liquid replenishing channel through the quick return structure, and the liquid replenishing channel is in an open state.

[0042] As Figure 1 — Figure 3As shown in the figure, parts such as the pump body 1, the first return spring 2, the main leather ring 6, and the piston 5 form a hydraulic working chamber. Before work, the liquid in the oil storage cup enters the sealing sleeve 4 and flows into the working chamber to fill the entire cavity 20. When this clutch master cylinder works, the driver manipulates the clutch pedal, and through a certain lever ratio, transfers the pedal force to the push rod fork 16, overcoming the elastic force of the first return spring 2 and the accelerating second return spring 11, driving the push rod 14 fixedly connected thereto, and pushing the piston 5 to move horizontally. When the piston 5 drives the main leather ring 6 across the compensation hole, parts such as the pump body 1, the first return spring 2, the main leather ring 6, and the piston 5 form a closed chamber communicating with the liquid outlet hole. During the process of the piston 5 continuing to move with the main leather ring 6, the volume of the closed chamber gradually becomes smaller, and the liquid pressure in the chamber gradually increases, forcing the liquid to flow from the liquid outlet to the hydraulic pipeline to achieve the function of establishing hydraulic pressure.

[0043] When the driver releases the clutch pedal, under the combined action of the pressure in the hydraulic pipeline, the elastic force of the first return spring 2 and the accelerating second return spring 11, the push rod 14 returns more quickly, and the return performance of the clutch pedal is better than that of the single-spring return structure.

[0044] This clutch master cylinder includes the main body part of the clutch master cylinder, a quick return structure, and an air filtration structure 19. The quick return structure enables the clutch master cylinder to have a quick return function through its double return spring structure, making the return performance of the clutch pedal better than that of the single-spring return structure and enhancing the driver's comfort. This air filtration structure ensures the cleanliness inside the clutch master cylinder, improves the execution efficiency of the clutch master cylinder and its supporting system, and is applicable to the hydraulic clutch system of vehicles.

[0045] The above are only the preferred embodiments of one or more embodiments of the present utility model, and are not intended to limit one or more embodiments of the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of one or more embodiments of the present utility model shall be included within the protection scope of one or more embodiments of the present utility model.

Claims

1. Master cylinder of clutch, characterized in that, Comprising: The main body part of the clutch master cylinder, including a pump body, a piston assembly and an oil cup body. The pump body has a liquid outlet hole, a compensation hole and a cavity whose length extends along the horizontal transverse direction. The liquid outlet hole and the compensation hole of the pump body communicate with the cavity, and the compensation hole is located at the top of the pump body; the piston assembly is arranged in the cavity of the pump body and extends along the horizontal direction in length. The piston assembly includes a piston, and the oil cup body is arranged at the compensation hole of the pump body; An air filtering structure, arranged on the oil cup body and communicating with the inside of the oil cup body; A quick return structure that drives the piston to move horizontally and has at least two springs, arranged on the pump body and connected to the piston assembly; The piston and the cavity of the pump body jointly form a liquid storage space whose internal space changes due to the horizontal transverse movement of the piston. The liquid outlet hole of the pump body communicates with the liquid storage space; the compensation hole is located on the horizontal transverse movement path of the side wall of the piston, and the compensation hole serves as a liquid replenishing channel for the internal communication between the oil cup body and the liquid storage space.

2. The clutch master cylinder according to claim 1, characterized in that: When the clutch master cylinder is in a non-compensated state, the piston in the piston assembly is in a position where the side wall of the piston completely blocks the liquid replenishing channel through the quick return structure; When the clutch master cylinder is in a compensated state, the piston in the piston assembly is in a position where the side wall of the piston is away from the liquid replenishing channel through the quick return structure, and the liquid replenishing channel is in an open state.

3. The clutch master cylinder according to claim 1, wherein, The air filtering structure includes: A ventilation pipe, connected to the oil cup body and internally communicating; and A filter element, arranged on the ventilation pipe.

4. The master cylinder of the clutch according to claim 1, characterized in that, The quick return structure includes: a first return spring connecting the piston to the inner wall of the cavity of the pump body. The first return spring is horizontally and transversely placed and located in the liquid storage space.

5. The master cylinder for clutch according to claim 4, characterized in that, The quick return structure further includes: A push rod whose rod length extends horizontally and transversely into the cavity of the pump body; An elastic dust-proof cover assembly arranged on the pump body, sleeved on the push rod; A spring assembly that provides buffering for the horizontal transverse movement of the push rod, with two ends respectively connected to the elastic dust-proof cover assembly and the pump body. The spring assembly is located outside the push rod, and The piston is on the horizontal transverse movement path of the push rod.

6. The master cylinder of the clutch according to claim 5, characterized in that, The elastic dust-proof cover assembly includes: A spring support seat, fixedly sleeved on the push rod; A dust-proof cover that relies on a spring to expand and contract in the horizontal transverse direction, with two ends respectively connected to the spring support seat and the pump body.

7. A vehicle, characterized in that, Including the clutch master cylinder according to any one of claims 1-6.

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