Oil cup integrated clutch master cylinder

Abstract

The utility model provides an oil cup integrated clutch master cylinder, and belongs to the technical field of pumps. An oil cup integrated clutch master cylinder comprises a main body, a push rod, a piston, a sealing ejector rod, a breathing lung and an oil cup cover which are integrally formed, the main body is provided with an oil cup, a cylinder body and an oil inlet hole part, and the oil cup is communicated with the cylinder body; the central axis of the oil cup is perpendicular to the central axis of the cylinder body, the oil inlet hole part is connected to the oil cup and the cylinder body and penetrates through the inner wall of the cylinder body, the piston is arranged in the cylinder body in a sliding mode, a leather cup is fixed to the piston, and the push rod is connected with the piston. The sealing ejector rod is slidably and telescopically connected with the piston, and a sealing gasket is fixed to the end of the sealing ejector rod and used for opening and closing a channel between the oil cylinder and the oil cup. A spring is arranged between the sealing gasket and the piston, the breathing lung is installed on the oil cup, the oil cup cover is fixed to the oil cup and shields the breathing lung, and a vent hole is formed in the middle of the oil cup cover.

Description

Technical Field

[0001] The utility model belongs to the technical field of pumps, in particular to an oil cup integrated clutch master cylinder. Background Technique

[0002] After a vehicle has been used for a long time, the method of connecting the body of the traditional clutch master cylinder and the oil cup through a oil pipe is prone to the situation of aging and loosening of the oil pipe, thus generating a risk of oil leakage. Moreover, the vehicle will continuously generate vibrations during driving. When the engine is working or the vehicle is driving on a bumpy road surface, the vibrations will be transmitted to the clutch master cylinder and the oil pipe connected thereto, which is also one of the factors leading to oil leakage. Summary of the Invention

[0003] The purpose of the utility model is to address the above problems existing in the prior art, and propose an oil cup integrated clutch master cylinder, which solves the problem of oil leakage at the position of the oil pipe by eliminating the oil pipe arrangement.

[0004] The purpose of the utility model can be achieved by the following technical solutions:

[0005] An oil cup integrated clutch master cylinder, comprising: an integrally formed main body, a push rod, a piston, a sealing push rod, a breathing lung, and a cup cover. The main body is provided with an oil cup, a cylinder block, and an oil inlet hole part. The oil cup is communicated with the cylinder block; the central axis of the oil cup is perpendicular to the central axis of the cylinder block. The oil inlet hole part is arranged on the connection between the oil cup and the cylinder block, and the oil inlet hole part penetrates the inner wall of the cylinder block. The piston is slidably arranged in the cylinder block, and a leather cup is fixed on the piston. The push rod is connected to the piston; the sealing push rod is slidably and telescopically connected to the piston, and a sealing pad is fixed at the end of the sealing push rod. The sealing pad is used to open and close the channel between the oil cylinder and the oil cup; a spring is arranged between the sealing pad and the piston. The breathing lung is installed on the oil cup, and the cup cover is fixed on the oil cup and covers the breathing lung. A ventilation hole is arranged in the middle of the cup cover.

[0006] In the above oil cup integrated clutch master cylinder, the cylinder block is cylindrical.

[0007] In the above oil cup integrated clutch master cylinder, the oil cup is located at the end position of the cylinder block and gradually moves away from the oil cup and the cylinder block from the inner end of the oil inlet hole part towards the outer end of the oil inlet hole part.

[0008] In the above oil cup integrated clutch master cylinder, the channel includes an oil groove arranged at the bottom of the oil cup and a communication hole arranged at the inner bottom of the oil cylinder. The communication hole is communicated with the oil groove, and the communication hole is perpendicular to the oil groove.

[0009] In the above oil cup integrated clutch master cylinder, a connecting part is fixed on the outer surface of the cylinder block.

[0010] In the above oil cup integrated clutch master cylinder, a limiting block is fixed on the outer surface of the cylinder block, and there is a gap between the limiting block and the connecting portion.

[0011] Compared with the prior art, the present application has the following advantages:

[0012] In the present application, the main body adopts an integrally formed design, and the oil cup and the cylinder block are integrated. Compared with the traditional method of connecting the oil cup and the master cylinder body through a oil pipe, the risk of oil leakage caused by the aging and loosening of the oil pipe is reduced, the overall structure is more compact, and the stability is higher. When the vehicle is running and facing vibrations and other situations, it is not easy to have problems such as failures caused by the loosening of the connection parts. Brief Description of the Drawings

[0013] Figure 1 is a sectional view structure diagram in the present application;

[0014] Figure 2 is a sectional view structure diagram of the main body in the present application;

[0015] Figure 3 is a top view of the main body in the present application;

[0016] In the figure,

[0017] 2. Main body; 21. Oil cup; 211. Oil groove; 22. Cylinder block; 221. AC hole; 222. Connecting portion; 223. Limiting block; 23. Oil inlet hole portion;

[0018] 3. Push rod;

[0019] 4. Piston; 41. Leather cup;

[0020] 5. Sealing push rod; 51. Sealing gasket;

[0021] 6. Breather lung;

[0022] 7. Cup cover; 71. Vent hole. Detailed Embodiments

[0023] The following combines the attached Figures 1 - 3 drawings and specific embodiments to further illustrate the present application:

[0024] First of all, it should be noted here that in the description of this application, when terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and other orientation words appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings. It is only for the convenience of 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 to this application; in addition, when terms such as "first", "second", "third" and other numerical quantifiers appear, they are only for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, in this application, unless otherwise clearly specified and limited, when terms such as "installation", "connection", "linkage" are used, they should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, an interference fit, a transition fit and other limiting connections, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium; therefore, for those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0025] As Figures 1 to 3 shown, an oil cup 21 integrated clutch master cylinder includes: an integrally formed main body 2, a push rod 3, a piston 4, a sealing push rod 5, a breathing lung 6, and a cup cover 7. The main body 2 has an oil cup 21, a cylinder block 22, and an oil inlet hole portion 23. The oil cup 21 communicates with the cylinder block 22; the central axis of the oil cup 21 is perpendicular to the central axis of the cylinder block 22. The oil inlet hole portion 23 is provided on the connection between the oil cup 21 and the cylinder block 22, and the oil inlet hole portion 23 penetrates the inner wall of the cylinder block 22. The piston 4 is slidably arranged in the cylinder block 22. A leather cup 41 is fixed on the piston 4. The push rod 3 is connected to the piston 4; the sealing push rod 5 is slidably telescopically connected to the piston 4. A sealing gasket 51 is fixed at the end of the sealing push rod 5. The sealing gasket 51 is used to open and close the channel between the oil cylinder and the oil cup 21; a spring is arranged between the sealing gasket 51 and the piston 4. The breathing lung 6 is installed on the oil cup 21. The cup cover 7 is fixed on the oil cup 21 and covers the breathing lung 6. A ventilation hole 71 is provided in the middle of the cup cover 7.

[0026] In this application, the main body 2 adopts an integrally formed design, and the oil cup 21 and the cylinder block 22 are integrated. Compared with the traditional method of connecting the oil cup 21 and the master cylinder body through a oil pipe, the risk of oil leakage caused by the aging and loosening of the oil pipe is reduced. The overall structure is more compact and the stability is higher. When the vehicle is running and facing vibrations and other conditions, it is not easy to have problems caused by the loosening of the connecting part 222 and resulting in failures.

[0027] Since the oil cup 21, the cylinder block 22, and the oil inlet hole part 23 are integrally formed directly, the oil in the oil cup 21 can enter the interior of the cylinder block 22 more smoothly and directly through the oil inlet hole part 23. Compared with the traditional method that relies on external oil pipes for connection and the oil needs to flow through a longer pipeline, the resistance and energy loss of the oil during transmission are reduced, and it can respond more quickly to the demand for oil replenishment when the cylinder block 22 is working, ensuring that the master clutch cylinder can obtain sufficient oil in time to maintain normal operation.

[0028] In this application, when the push rod 3 moves, it drives the internal piston 4 to move towards the oil cup 21, pressing out the internal hydraulic oil from the oil inlet hole part 23. When the push rod 3 returns to its original position, if a local vacuum is generated inside, it is replenished by the hydraulic oil in the oil cup 21. The working principle of this application is the same as that of an ordinary clutch.

[0029] Specifically, the cylinder block 22 is cylindrical.

[0030] The cylindrical structure of the cylinder block 22 enables its inner wall to be uniformly stressed when bearing the oil pressure. No matter from which direction the oil pressure is applied, the circumferential wall of the cylinder block 22 can bear it in a relatively balanced manner.

[0031] Specifically, the oil cup 21 is located at the end of the cylinder block 22 and gradually moves away from the oil cup 21 and the cylinder block 22 from the inner end of the oil inlet hole part 23 towards the outer end of the oil inlet hole part 23.

[0032] This design can set the oil inlet hole part 23 between them without affecting the use effect and without the need to further extend the length of the cylinder block 22, thereby further reducing the overall size of the product.

[0033] Specifically, the channel includes an oil groove 211 provided at the bottom of the oil cup 21 and a communication hole 221 provided at the inner bottom of the oil cylinder. The communication hole 221 is communicated with the oil groove 211 and is vertically arranged with the oil groove 211.

[0034] Specifically, a connecting part 222 is fixed on the outer surface of the cylinder block 22. The connecting part 222 is used to facilitate the fixing of the cylinder block 22.

[0035] Specifically, a limiting block 223 is fixed on the outer surface of the cylinder block 22, and there is a gap between the limiting block 223 and the connecting part 222.

[0036] It should be noted that the above embodiments are only used to illustrate the present application and do not limit the technical solutions described in the present application. Although the present specification has described the present application in detail with reference to the above embodiments, those of ordinary skill in the art should understand that those skilled in the art can still modify or make equivalent substitutions to the present application, and all technical solutions and their improvements that do not depart from the spirit and scope of the present application should be covered within the scope of the claims of the present application.

Claims

1. A clutch master cylinder with an oil cup (21) integrated therein, characterized in that: include: An integrally formed main body (2), a push rod (3), a piston (4), a sealing push rod (5), a breathing lung (6), and a cup cover (7); the main body (2) is provided with an oil cup (21), a cylinder body (22), and an oil inlet hole (23); the oil cup (21) is connected to the cylinder body (22); the central axis of the oil cup (21) is perpendicular to the central axis of the cylinder body (22); the oil inlet hole (23) is arranged on the connection between the oil cup (21) and the cylinder body (22), and the oil inlet hole (23) penetrates the inner wall of the cylinder body (22); the piston (4) is slidably arranged in the cylinder body (22); the piston (4) is fixed with a leather cup (41), the push rod (3) is connected to the piston (4); the sealing top rod (5) is slidably and telescopically connected to the piston (4), a sealing gasket (51) is fixed to the end of the sealing top rod (5), and the sealing gasket (51) is used to open and close the channel between the oil cylinder and the oil cup (21); a spring is arranged between the sealing gasket (51) and the piston (4), the breathing lung (6) is installed on the oil cup (21), the cup cover (7) is fixed on the oil cup (21) and covers the breathing lung (6), and a vent hole (71) is arranged in the middle of the cup cover (7).

2. The oil cup (21) integrated clutch master cylinder according to claim 1, characterized in that: The cylinder body (22) is cylindrical.

3. The oil cup (21) integrated clutch master cylinder according to claim 2, characterized in that: The oil cup (21) is located at the rear end of the cylinder body (22), and gradually moves away from the oil cup (21) and the cylinder body (22) from the inner end of the oil inlet hole (23) toward the outer end of the oil inlet hole (23).

4. The oil cup (21) integrated clutch master cylinder according to claim 3, characterized in that: The channel comprises an oil groove (211) arranged at the bottom of the oil cup (21) and a communication hole (221) arranged at the inner bottom of the oil cylinder; the communication hole (221) is communicated with the oil groove (211), and the communication hole (221) and the oil groove (211) are arranged vertically.

5. The oil cup (21) integrated clutch master cylinder according to claim 1, characterized in that: A connecting portion (222) is fixed on the outer surface of the cylinder body (22).

6. The oil cup (21) integrated clutch master cylinder according to claim 5, characterized in that: A limit block (223) is fixed on the outer surface of the cylinder body (22), and there is a gap between the limit block (223) and the connecting portion (222).

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