Clutch master cylinder with joint direction self-defining function and automobile

Abstract

The utility model relates to a clutch master cylinder with the function of customizing the direction of a connector and an automobile, and the clutch master cylinder with the function of customizing the direction of the connector comprises a cylinder main body part, an oil inlet connector and an oil supplementing valve. Therefore, the clutch master cylinder is not limited by the joint in the fixed direction when being installed.

Description

Technical Field

[0001] The utility model relates to the technical field of clutch master cylinders, and particularly relates to a clutch master cylinder with a function of customizing the joint direction and an automobile. Background Technique

[0002] As an important hydraulic transmission component in automobiles or mechanical equipment, the clutch master cylinder is widely used in the clutch control system, and its main function is through hydraulic transmission. The function of the clutch master cylinder is to convert the pedal force into hydraulic pressure. For example, the driver manipulates the clutch pedal to push the piston of the clutch master cylinder, so that hydraulic pressure is established in the clutch master cylinder. The hydraulic pressure is transmitted through the pipeline to the clutch slave cylinder and converted into a driving force to push the release fork, realizing the separation of the clutch. The whole process is from pedal force to hydraulic pressure and then to thrust. Components such as the clutch master cylinder, slave cylinder and hydraulic pipeline realize the function of force transmission. The existing clutch master cylinders are relatively mature in design and structure, but there are still some technical limitations, especially in the installation and adaptability of the oil circuit joints.

[0003] At present, the commonly used clutch master cylinders generally adopt oil inlet joints with a fixed direction. For example, the joints of this type of clutch master cylinder are fixed by threads or clamps, and can only meet the installation in a specific direction. Once the installation direction of the oil inlet joint is determined, when it is subsequently installed on a vehicle or equipment, if the installation space of the master cylinder is limited, it may cause the direction of the oil inlet joint to not match the actual requirements. Summary of the Utility Model

[0004] In order to solve the above technical problems, the utility model provides a clutch master cylinder with a function of customizing the joint direction and an automobile.

[0005] The purpose of the utility model is realized through the following technical solutions:

[0006] In the first aspect, a clutch master cylinder with a function of customizing the joint direction is provided. The clutch master cylinder with a function of customizing the joint direction includes:

[0007] A pump main body part, including a pump body, a piston assembly with a spring and a push rod assembly. The pump body has a cavity, an oil outlet hole and a supplementary oil hole communicated with the cavity. The oil outlet hole of the pump body is communicated with the cavity, and the supplementary oil hole of the pump body is located at the top of the pump body; the piston assembly includes a piston and a main leather ring sleeved on the piston. The outer edge of the main leather ring is the part in contact with the side wall of the cavity of the pump body. The cavity space of the pump body is divided into a working cavity and a storage cavity by the main leather ring. Among them, the storage cavity is closer to the push rod assembly than the working cavity. The piston assembly is arranged in the cavity of the pump body, and at least a part of the push rod assembly is located outside the cavity of the pump body and is connected with the piston assembly;

[0008] The oil inlet joint is rotatably disposed at the oil replenishing hole of the pump body by 360°;

[0009] An oil replenishing valve with a spring is disposed in the oil replenishing hole of the pump body; and

[0010] The interior of the oil inlet joint is communicated with the interior of the oil replenishing hole near the cavity of the pump body through the oil replenishing valve; the oil replenishing hole is located on the movement path of the piston and the main leather ring, and the horizontal lateral dimension of the main leather ring is smaller than the aperture of the oil replenishing hole.

[0011] In some embodiments, when the clutch master cylinder is in the first working state, the oil replenishing valve is in an open state, an opening is formed between the oil replenishing hole of the pump body and the main leather ring, and the oil replenishing hole of the pump body is communicated with the working chamber of the pump body through the opening.

[0012] In some embodiments, when the clutch master cylinder is in the second working state, the oil replenishing valve is in a closed state, and the working chamber in the pump body is communicated with the oil storage chamber.

[0013] In some embodiments, the spring of the piston assembly is horizontally and laterally arranged and sleeved on a part of the piston located in the working chamber of the pump body, and both ends of the piston are respectively connected to the piston and the left side wall of the cavity of the pump body.

[0014] In some embodiments, the pump body is provided with a connecting sleeve at the oil replenishing hole;

[0015] The oil inlet joint includes a vertical pipe section and an inclined pipe section connected to the vertical pipe section at an angle;

[0016] At least a part of the vertical pipe section is rotatably disposed in the connecting sleeve by 360°, and the lower end of the vertical pipe section is connected to the oil inlet of the oil replenishing valve.

[0017] In some embodiments, the connection between the inclined pipe section and the vertical pipe section adopts an arc angle.

[0018] In some embodiments, the oil replenishing valve includes:

[0019] A mounting seat having a vertical oil inlet passage therein, and the mounting seat is disposed inside the oil replenishing hole of the pump body;

[0020] A valve core for blocking the oil inlet passage of the mounting seat;

[0021] A vertically arranged spring for setting the valve core in the oil inlet passage of the mounting seat; and the valve core is suspended at the lower end of the spring.

[0022] In some embodiments, the oil inlet passage of the mounting seat includes a flower-shaped diversion hole.

[0023] In a second aspect, a vehicle is provided, which includes the clutch master cylinder with the function of customizing the joint direction provided in the first aspect.

[0024] The beneficial effects of the present utility model are as follows: By adopting the design of a 360° rotatable oil inlet joint, the installation of the clutch master cylinder is no longer restricted by the joints with fixed directions. Regardless of how compact or complex the installation space of the master cylinder is, the direction of the oil inlet joint can be flexibly adjusted according to actual needs, thus greatly improving the adaptability of installation. Since the oil inlet joint can freely adjust its direction, the waste of installation space caused by the fixed joint direction in the prior art is avoided. This enables the master cylinder to make more efficient use of the limited installation space and adapt to more different equipment layout requirements, thereby enhancing the space utilization rate of equipment design. Through the rotatable design of the oil inlet joint, when maintenance personnel deal with problems such as pipeline leakage or joint damage, they do not need to readjust the entire pump body position, but only need to adjust the joint direction for maintenance, significantly reducing the time and labor costs during maintenance and enhancing the convenience and efficiency of equipment maintenance. The design of the main leather ring contacting the side wall of the pump body cavity divides the cavity into a working chamber and an oil storage chamber, and through the reasonable layout of the oil replenishing valve and the oil replenishing hole, the sealing performance and the smoothness of oil replenishment during the operation of the clutch master cylinder are ensured, thereby improving the working stability and service life of the master cylinder. The clutch master cylinder of the present utility model can adapt to a variety of complex usage environments, and through the function of customizing the joint direction, its versatility and practicality in various equipment are significantly improved. Description of the Drawings

[0025] 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 following described drawings 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.

[0026] Figure 1 It is a schematic structural diagram of the clutch master cylinder provided in an embodiment of the present utility model;

[0027] Figure 2 It is a schematic structural diagram of the installation part of the oil inlet joint provided in an embodiment of the present utility model;

[0028] Figure 3 It is the working state of the oil inlet joint at different angles provided in an embodiment of the present utility model;

[0029] Figure 4 It is a schematic structural diagram of the oil replenishing valve provided in an embodiment of the present utility model. Detailed Embodiments

[0030] To better understand the technical solution of this application, the embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0031] Currently, the common clutch master cylinder generally uses an oil inlet joint with a fixed direction. Once the installation direction of the oil inlet joint is determined, if the installation space of the master cylinder is limited during subsequent installation on a vehicle or equipment, it may cause the direction of the oil inlet joint to not match the actual requirements. To solve the above technical problems, the present utility model provides a clutch master cylinder with a function of customizing the joint direction. The clutch master cylinder with the function of customizing the joint direction is applied to an automobile.

[0032] As Figure 1 — Figure 4 shown, in one embodiment, a clutch master cylinder with a function of customizing the joint direction is provided. The clutch master cylinder with the function of customizing the joint direction includes a pump main body part, an oil inlet joint, and a replenishing valve.

[0033] The pump main body part includes a pump body 1, a piston assembly with a spring, and a push rod assembly.

[0034] The pump body 1 has a cavity 101, an oil outlet hole 102, and a replenishing hole 103 communicating with the cavity 101. The length of the cavity 101 of the pump body 1 extends horizontally. The oil outlet hole 102 of the pump body 1 communicates with the cavity 101, and the oil outlet hole 102 is located at the bottom of the pump body 1. The replenishing hole 103 of the pump body 1 is generally annular and located at the top of the pump body 1. The hole length of the replenishing hole 103 extends vertically to the cavity 101. In some embodiments, the pump body 1 is provided with a connecting sleeve 6 on the inner side wall of the replenishing hole 103 and a resisting ring 117 below the connecting sleeve 6, and the connecting sleeve 6 is made of an elastic material.

[0035] The piston 3 assembly includes a piston 3 and a main leather ring 5. The length of the piston 3 extends horizontally. The left end of the piston 3 extends to a certain distance from the left side wall of the cavity 101 of the pump body 1, and the right end of the piston 3 extends close to the right side wall of the cavity 101 of the pump body 1. There is an opening on the right side wall of the cavity 101. There are a main leather ring 5 groove and an auxiliary leather ring 9 groove on the piston 3. The main leather ring 5 is sleeved at the main leather ring 5 groove of the piston 3, and the auxiliary leather ring 9 is sleeved at the auxiliary leather ring 9 groove of the piston 3. The outer edge of the main leather ring 5 serves as the part in contact with the side wall of the cavity 101 of the pump body 1, and the outer edge of the auxiliary leather ring 9 serves as the part in contact with the side wall of the cavity 101 of the pump body 1. Both the main leather ring 5 and the auxiliary leather ring 9 have the function of sealing oil under normal conditions. And the space of the cavity 101 of the pump body 1 is divided into a working chamber 104 and an oil storage chamber 105 by the main leather ring 5. Among them, the working chamber 104 is composed of the main leather ring 5, the piston 3 and the chamber wall on the left side of the main leather ring 5 in the cavity 101. The oil storage chamber 105 is closer to the push rod assembly relative to the working chamber 104. The spring 2 is arranged horizontally and sleeved on the piston 3. The right end of the piston 3 is connected to the piston 3 and the left end is connected to the left inner wall of the cavity 101 of the pump body 1. The spring 2 is located in the working chamber 104 of the pump body 1.

[0036] The piston 3 assembly is arranged in the cavity 101 of the pump body 1, and at least a part of the push rod assembly is located outside the cavity 101 of the pump body 1 and is connected to the piston 3 assembly; in one embodiment, the push rod assembly includes a push rod 12 and a push rod 12 fork. The left end of the push rod 12 extends from the right end opening of the cavity 101 of the pump body 1 into the cavity 101. There is a retaining ring 11 inside the right side of the cavity 101 of the pump body 1 to prevent the push rod 12 from being pulled out of the pump body 1. A dust-proof cover 10 is sleeved on the push rod 12 and is located outside the pump body 1. The upper and lower wings of the dust-proof cover 10 are connected to the outer side wall of the pump body 1. The right side wall of the dust-proof cover 10 and the push rod 12 form a covering structure for the right end opening of the pump body 1 to achieve the effect of dust-proof for the right end opening of the pump body 1. The push rod 12 fork is connected to the right end of the push rod 12.

[0037] The oil inlet joint 4 is rotatably arranged at the oil replenishing hole 103 of the pump body 1 by 360°; in one embodiment, the oil inlet joint 4 includes a vertical pipe section and an inclined pipe section connected to the vertical pipe section and forming an angle. At least a part of the vertical pipe section is rotatably arranged in the connecting sleeve 6 by 360°, and the lower end of the vertical pipe section is connected to the oil inlet of the oil replenishing valve 8. In some embodiments, the connecting sleeve 6 is made of imported rubber material, which has a small density, good chemical stability, excellent ozone and weather resistance, and can withstand high temperature up to 150 °C, and can provide a high pre-tightening force for the joint; in some embodiments, the connection between the inclined pipe section and the vertical pipe section adopts a rounded corner. The oil inlet joint 4 is made of reinforced nylon, and the channel turning is processed with a rounded corner transition design to improve the product strength and meet the vehicle loading requirements.

[0038] The oil replenishing valve 8 with a spring is arranged in the oil replenishing hole 103 of the pump body 1; in some embodiments, the oil replenishing valve 8 includes: a mounting seat, a valve core 83 and a spring 2. The mounting seat has a vertical oil inlet passage inside. The mounting seat is arranged inside the oil replenishing hole 103 of the pump body 1. The mounting seat includes: a support 81, an oil replenishing valve leather ring 82 and a valve seat 85. The oil replenishing valve leather ring 82 is located between the support 81 and the valve seat 85; the valve core 83 is located at the oil inlet passage of the support 81 and is used to block the oil inlet passage of the support 81. The valve core 83 is made of 6061 material and its surface is treated by hard anodizing to ensure good wear resistance and sealing requirements on the surface; the valve body spring 84 is arranged vertically. The lower end of the valve body spring 84 is connected to the valve core 83 and the upper end is connected to the inner side wall of the valve seat 85, so that the valve core 83 is suspended at the lower end of the valve body spring 84. The valve body spring 84 is used to set the valve core 83 in the oil inlet passage of the mounting seat. The valve body spring 84 is made of imported piano wire material, which can accurately control the opening force and closing force of the oil replenishing valve 8 to ensure the sensitivity of the oil replenishing function of the product. In some embodiments, the oil inlet passage of the mounting seat includes a flower-shaped diversion hole to ensure smooth hydraulic flow rate and enhance the oil replenishing effect by energizing acceleration.

[0039] The inside of the oil inlet joint 4 is communicated with the inside of the oil replenishing hole 103 near the cavity 101 of the pump body 1 through the oil replenishing valve 8; the oil replenishing hole 103 is located on the movement path of the piston 3 and the main leather ring 5, and the horizontal lateral dimension of the main leather ring 5 is smaller than the aperture of the oil replenishing hole 103.

[0040] In some embodiments, when the clutch master cylinder is in the first working state, the oil replenishing valve 8 is in the open state, and an opening is formed between the oil replenishing hole 103 of the pump body 1 and the main leather ring 5. The oil replenishing hole 103 of the pump body 1 is communicated with the working chamber 104 of the pump body 1 through the opening.

[0041] In some embodiments, when the clutch master cylinder is in the second working state, the oil replenishing valve 8 is in the closed state, and the working chamber 104 in the pump body 1 is communicated with the oil storage chamber 105.

[0042] Before work, the liquid in the oil storage cup enters the oil inlet joint 4 through the pipeline (the oil inlet joint 4 is connected to the pipeline, and the joint angle can be customized according to the pipeline routing requirements), and flows into the working chamber 104 through the oil replenishing valve 8 to fill the entire cavity 101. When the product is working, the driver manipulates the clutch pedal, and through a certain lever ratio, transmits the pedal force to the fork of the push rod 12, overcomes the elastic force of the return spring 2, drives the push rod 12 fixedly connected thereto, and pushes the piston 3 to move axially (horizontally). When the piston 3 drives the main leather ring 5 past the oil replenishing hole 103, parts such as the pump body 1, the spring 2, the main leather ring 5, the piston 3, etc. form a cavity 101 communicating with the liquid outlet hole. In this process, the piston 3 drives the auxiliary leather ring 9 and moves forward quickly, which will instantly drive the liquid pressure in the oil storage cavity 105 to rise. Under the spring 2 force of the valve body spring 84 of the oil replenishing valve 8, the valve core 83 closes the liquid passage of the valve port. As the piston 3 continues to move forward, the liquid in the oil storage cavity 105 will quickly flow into the working chamber 104 through the back of the main leather ring 5. During the process of the piston 3 driving the main leather ring 5 to continue moving, the volume in the working chamber 104 gradually decreases, 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. When the driver releases the clutch pedal, under the combined action of the pressure in the hydraulic pipeline and the spring 2 force, the piston 3 quickly retracts. A pressure difference will be generated between the two working chambers 104 on both sides of the main leather ring 5 in the clutch master cylinder. At this time, the liquid connecting the oil storage cup will quickly replenish back into the working chamber 104 through the back of the oil replenishing valve leather ring 82 and the back of the main leather ring 5 in the oil replenishing valve 8. After the piston 3 retracts to its original position, the excess liquid replenished during the retraction process flows back through the compensation hole of the cylinder block through the oil replenishing valve 8 (the excess liquid will cause the pressure in the oil storage cavity 105 to rise, the valve core 83 overcomes the spring 2 force of the valve body spring 84, the valve core 83 moves upward, and the liquid passage of the valve port opens) and then to the oil storage cup (when the pressures on both sides of the valve core 83 reach equilibrium, under the spring 2 force of the valve body spring 84, the valve core 83 closes the liquid passage of the valve port again) to complete a working cycle.

[0043] By adopting the design of a 360° rotatable oil inlet joint 4, the clutch master cylinder is no longer restricted by the fixed-direction joint during installation. Regardless of how compact or complex the installation space of the master cylinder is, the direction of the oil inlet joint 4 can be flexibly adjusted according to actual needs, thus greatly improving the adaptability of installation. Since the oil inlet joint 4 can freely adjust its direction, it avoids the waste of installation space caused by the fixed joint direction in the prior art. This enables the master cylinder to make more efficient use of the limited installation space, adapt to more different equipment layout requirements, and thus improves the space utilization rate of equipment design. Through the rotatable design of the oil inlet joint 4, when maintenance personnel deal with problems such as pipeline leakage or joint damage, they do not need to readjust the position of the entire pump body 1. They only need to adjust the joint direction to carry out maintenance, significantly reducing the time and labor costs during maintenance and improving the convenience and efficiency of equipment maintenance. The design that the main leather ring 5 contacts the side wall of the cavity 101 of the pump body 1 divides the cavity 101 into a working chamber 104 and an oil storage chamber 105. And through the reasonable layout of the oil replenishing valve 8 and the oil replenishing hole 103, it ensures the sealing performance and smooth oil replenishing of the clutch master cylinder during operation, thus improving the working stability and service life of the master cylinder. This clutch master cylinder can adapt to a variety of complex use environments. Through the function of customizing the joint direction, it significantly improves its versatility and practicality in various equipment.

[0044] The clutch master cylinder is designed with a structure at the oil replenishing hole 103 that can achieve the function of rapid oil replenishment. This structure can quickly replenish the oil in the oil storage chamber 105 to the working chamber 104, thereby improving the oil injection efficiency of the whole vehicle and reducing the labor intensity of maintenance personnel.

[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 scope of protection of one or more embodiments of the present utility model.

Claims

1. The clutch master cylinder with the function of customizing the joint direction is characterized in that Comprising: A pump main body part, including a pump body, a piston assembly with a spring, and a push rod assembly. The pump body has a cavity, an oil outlet hole, and a supplementary oil hole communicating with the cavity. The oil outlet hole of the pump body communicates with the cavity, and the supplementary oil hole of the pump body is located at the top of the pump body; the piston assembly includes a piston and a main leather ring sleeved on the piston. The outer edge of the main leather ring serves as the part in contact with the side wall of the cavity of the pump body. The cavity space of the pump body is divided into a working chamber and a storage chamber by the main leather ring. Among them, the storage chamber is relatively closer to the push rod assembly than the working chamber. The piston assembly is arranged in the cavity of the pump body, and at least a part of the push rod assembly is located outside the cavity of the pump body and is connected to the piston assembly; An oil inlet joint rotatably arranged at the supplementary oil hole of the pump body by 360°; A supplementary oil valve with a spring, arranged in the supplementary oil hole of the pump body; and The interior of the oil inlet joint is communicated with the interior of the supplementary oil hole near the cavity of the pump body through the supplementary oil valve; the supplementary oil hole is located on the movement path of the piston and the main leather ring, and the horizontal lateral dimension of the main leather ring is smaller than the aperture of the supplementary oil hole.

2. The clutch master cylinder with a function of customizing the joint direction according to claim 1, characterized in that: When the clutch master cylinder is in the first working state, the supplementary oil valve is in an open state, and an opening is formed between the supplementary oil hole of the pump body and the main leather ring. The supplementary oil hole of the pump body is communicated with the working chamber of the pump body through the opening.

3. The clutch master cylinder with a function of customizing the joint direction according to claim 1, characterized in that: When the clutch master cylinder is in the second working state, the supplementary oil valve is in a closed state, and the working chamber in the pump body is communicated with the storage chamber.

4. The master cylinder of the clutch with the function of customizing the joint direction according to claim 1, characterized in that, The spring of the piston assembly is horizontally and laterally arranged and sleeved on a part of the piston located in the working chamber of the pump body. Both ends of the piston are respectively connected to the piston and the left side wall of the cavity of the pump body.

5. The master cylinder of the clutch with the function of customizing the joint direction according to claim 4, characterized in that, A connecting sleeve is provided at the supplementary oil hole of the pump body; The oil inlet joint includes a vertical pipe section and an inclined pipe section connected to the vertical pipe section and forming an angle; At least a part of the vertical pipe section is rotatably arranged in the connecting sleeve by 360°, and the lower end of the vertical pipe section is connected to the oil inlet of the supplementary oil valve.

6. The master cylinder of the clutch with the function of customizing the joint direction according to claim 5, characterized in that: The connection part between the inclined pipe section and the vertical pipe section adopts a rounded corner.

7. The master cylinder of the clutch with the function of customizing the joint direction as claimed in claim 1, wherein, The supplementary oil valve includes: A mounting seat with a vertical oil inlet channel inside, and the mounting seat is arranged inside the supplementary oil hole of the pump body; A valve core for blocking the oil inlet channel of the mounting seat; A vertically arranged spring for setting the valve core in the oil inlet channel of the mounting seat; and The valve core is suspended at the lower end of the spring.

8. The master cylinder of the clutch with the function of customizing the joint direction according to claim 7, characterized in that: The oil inlet channel of the mounting seat includes a flower-shaped diversion hole.

9. A vehicle, characterized in that, Including the clutch master cylinder with a function of customizing the joint direction according to any one of claims 1-8.

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