A clutch pump convenient for disassembly and maintenance

Abstract

The utility model discloses a clutch pump convenient to disassemble and maintain belongs to clutch pump technical field, including cylinder, its inside sliding installation has piston assembly, and the rear side of piston assembly is provided with push rod, rear anti -unhooking cover, its detachable installation is in the cylinder rear end, front closed head, its detachable installation is in the cylinder front end, and is sealed with cylinder connection, wherein, the front closed head inner end fixed setting has spring fixed cylinder, and the reset spring is set up on it. Its technical key points are: through detachable installation front closed head and rear anti -unhooking cover at the front and rear of cylinder respectively, can improve the convenience of entire clutch pump when disassembling, when need disassembling reset spring, can through single disassembly front closed head directly and take out reset spring, and when need to take out piston assembly, can remove front closed head and rear anti -unhooking cover, when, can through the rod object directly push out piston assembly, make disassembly maintenance operation very simple and easy.

Description

Technical Field

[0001] This utility model relates to the field of clutch pump technology, specifically a clutch pump that is easy to disassemble and maintain. Background Technology

[0002] The clutch pump is a core hydraulic component of the automotive clutch operating system, consisting of a master cylinder and slave cylinders. The master cylinder connects to the clutch pedal and, through a push rod, pushes a piston to compress hydraulic oil, converting the pedal's mechanical force into hydraulic power, which is then transmitted to the slave cylinders via oil lines. The slave cylinders receive the high-pressure oil and push their pistons and release bearings, thus disengaging and engaging the clutch. This hydraulic transmission mechanism makes clutch operation more precise and efficient, ensuring smooth vehicle starts, seamless gear shifts, and preventing overload of the transmission system. The clutch pump is compact, reliable, and an indispensable key component of the automotive transmission system.

[0003] Utility model patent CN202719043U discloses a clutch master cylinder, which comprises a pump body, a pump chamber, and a piston that reciprocates within the pump chamber. The piston divides the pump chamber into an oil supply chamber and a pressure chamber. The pump body has an oil inlet and an oil outlet. The piston is connected to one end of a push rod via a universal joint, with the other end extending beyond the rear end of the pump body. The piston is cylindrical and has a transverse through-hole. A limiting rod is fixed to the pump body and passes through the transverse through-hole. The piston has an on / off mechanism that connects or blocks the oil supply chamber and the pressure chamber with the cooperation of the limiting rod. The advantages of this clutch master cylinder are: high reliability, easy establishment of oil outlet pressure, good sealing, no compensation hole structure, avoiding scratching of the master piston cup during piston movement, and extended service life.

[0004] However, the aforementioned clutch master cylinder is highly integrated, making it difficult to disassemble in detail. This results in difficulties in quickly disassembling and replacing damaged parts of the clutch master cylinder for efficient repair. For example, when the clutch master cylinder spring fails or needs to be replaced with a spring of different elasticity, the piston assembly must be disassembled first before the spring can be removed. Furthermore, disassembling the piston assembly usually requires the use of an air pump or other air supply structure to apply pressure to hold it in place. This makes the entire disassembly process very cumbersome and difficult to operate. Therefore, to address the above problems, a clutch pump that is easy to disassemble and repair is proposed. Utility Model Content

[0005] To address the technical problem in comparative technologies where clutch pumps are highly integrated and difficult to disassemble meticulously, making it difficult to quickly disassemble and replace damaged parts for efficient repair, this invention provides a clutch pump that is easy to disassemble and repair.

[0006] The technical solution adopted by the embodiments of this application to solve its technical problem is:

[0007] A clutch pump that is easy to disassemble and maintain includes a cylinder with a piston assembly slidably mounted inside, a push rod disposed on the rear side of the piston assembly, and an oil inlet cylinder fixedly disposed in the middle of the cylinder; a rear anti-disengagement cover, which is detachably mounted on the rear end of the cylinder to limit the stroke of the push rod and prevent it from disengaging from the cylinder; a front sealing head, which is detachably mounted on the front end of the cylinder and is sealed to the cylinder; and an oil supply pipe, which is detachably mounted in the oil inlet cylinder for supplying oil to the cylinder; wherein, a spring retaining cylinder is fixedly disposed on the inner end of the front sealing head, a return spring is sleeved on it, and the other end of the return spring is sleeved on the front end of the piston assembly.

[0008] In one possible implementation, the surface of the spring fixing cylinder is fixedly provided with a number of anti-slip ridges arranged in a circumferential array, and the spring fixing cylinder is provided with a number of oil passage holes arranged in a circumferential array.

[0009] In one possible implementation, the front end of the front sealing head is provided with an oil outlet, and a hexagonal ring is fixedly provided on the front sealing head. The rear end of the front sealing head is threadedly connected to the inner wall of the front end of the cylinder, wherein a sealing gasket is snapped into the front end of the cylinder.

[0010] In one possible implementation, the cylinder and the front end cap are provided with a number of sets of horn-shaped connecting holes arranged in a circumferential array, wherein threaded connectors that fit the size of the horn-shaped connecting holes are provided, and the threaded connectors fix the cylinder and the front end cap together as a whole.

[0011] In one possible implementation, the rear anti-detachment cover includes a cover plate, which is threadedly connected to the inner wall of the rear end of the cylinder via a threaded cylinder provided on the front end face, and a hexagonal head is fixedly provided on the cover plate.

[0012] In one possible implementation, the rear end of the cylinder is machined to form a connecting platform, on which a plurality of connecting holes are arranged in a circumferential array, and a plurality of anti-loosening bolts are threaded through the cover plate and connected to the connecting holes.

[0013] In one possible implementation, an oil inlet is formed at the junction of the oil inlet cylinder and the cylinder barrel, the bottom end of the oil supply pipe is threaded to the inner wall of the oil inlet cylinder, and a sealing plate for sealing the oil inlet cylinder is fixedly provided on the outer wall of the oil supply pipe.

[0014] In one possible implementation, the oil supply pipe is fitted with a threaded cover, which is used to compress the sealing plate to fit against the oil inlet cylinder, and is threadedly connected to the outer wall of the oil inlet cylinder.

[0015] In summary, this utility model has the following beneficial technical effects:

[0016] By detachably installing the front sealing head and the rear anti-disengagement cover at the front and rear ends of the cylinder, the convenience of disassembling the entire clutch pump can be improved. When it is necessary to remove the return spring, the return spring can be directly removed by removing the front sealing head alone, without having to remove the piston assembly first and then the return spring. When it is necessary to remove the piston assembly, both the front sealing head and the rear anti-disengagement cover can be removed. At this time, the piston assembly can be directly pushed out by inserting a rod-shaped object from the front end of the cylinder. This makes the disassembly operation very simple and easy, which can significantly improve the working efficiency of the clutch pump during maintenance and reduce the difficulty of maintenance.

[0017] In addition, since the oil supply pipe is detachably connected to the cylinder, the externally connected oil storage unit can be quickly disassembled and separated from the cylinder. This facilitates separate cleaning of the oil storage unit and the inside of the oil supply pipe, preventing residual oil from aging and affecting the effect of newly injected oil, thus making it easy to use. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0019] Figure 1 This is a cross-sectional view of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the front structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the front closed head structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the rear structure of this utility model;

[0023] Figure 5 This is a schematic diagram of the oil supply pipe installation structure of this utility model.

[0024] In the diagram: 1. Cylinder; 11. Connecting base; 12. Connecting hole; 13. Oil inlet; 14. Oil inlet cylinder; 2. Piston assembly; 3. Rear anti-slip cover; 31. Cover plate; 32. Threaded cylinder; 33. Hexagonal head; 34. Anti-loosening bolt; 4. Push rod; 5. Front sealing head; 51. Oil outlet; 52. Hexagonal ring; 53. Trumpet-shaped connecting hole; 54. Threaded connector; 55. Spring retaining sleeve; 56. Oil passage hole; 57. Anti-slip ridge; 6. Return spring; 7. Oil supply pipe; 71. Sealing plate; 72. Threaded cover; 8. Sealing gasket. Detailed Implementation

[0025] The technical solution in this application embodiment is to solve the problems mentioned in the background art, and the overall idea is as follows:

[0026] like Figure 1 , Figure 5 As shown, this embodiment provides a clutch pump that is easy to disassemble and maintain, including a cylinder 1, in which a piston assembly 2 is slidably installed, and a push rod 4 is provided on the rear side of the piston assembly 2. At the same time, an oil inlet cylinder 14 is fixedly provided in the middle of the cylinder 1; a rear anti-disengagement cover 3, which is detachably installed at the rear end of the cylinder 1 to limit the stroke of the push rod 4 and prevent it from disengaging from the cylinder 1; a front sealing head 5, which is detachably installed at the front end of the cylinder 1 and is sealed to the cylinder 1; an oil supply pipe 7, which is detachably installed in the oil inlet cylinder 14 to supply oil to the cylinder 1; wherein, a spring fixing cylinder 55 is fixedly provided at the inner end of the front sealing head 5, and a return spring 6 is sleeved on it, and the other end of the return spring 6 is sleeved on the front end of the piston assembly 2.

[0027] Based on the above structural form, when it is necessary to remove the return spring 6, the return spring 6 can be directly removed by removing the front sealing head 5 alone, without having to remove the piston assembly 2 first and then remove the return spring 6. When it is necessary to remove the piston assembly 2, both the front sealing head 5 and the rear anti-disengagement cover 3 can be removed. At this time, the piston assembly 2 can be directly pushed out by inserting a rod-shaped object from the front end of the cylinder 1. This makes the disassembly operation very simple and easy, which can significantly improve the working efficiency of the clutch pump during maintenance and reduce the maintenance difficulty.

[0028] Meanwhile, since the oil supply pipe 7 is detachably connected to the cylinder 1, the externally connected oil storage unit can also be quickly disassembled and separated from the cylinder 1. This facilitates separate cleaning of the oil storage unit and the inside of the oil supply pipe 7, preventing residual oil from aging and affecting the effect of newly injected oil, and making it easy to use.

[0029] In order to improve the stability of the connection between the spring retaining sleeve 55 and the return spring 6, such as Figure 2 - Figure 3 As shown, the surface of the spring fixing cylinder 55 is fixedly provided with a number of anti-slip ridges 57 arranged in a circumferential array, and the spring fixing cylinder 55 is provided with a number of oil passage holes 56 arranged in a circumferential array. The oil passage holes 56 are provided to allow oil to pass through, and the flow of oil will not be obstructed by the setting of the spring fixing cylinder 55.

[0030] To ensure a tight seal between the front sealing head 5 and the cylinder barrel 1, and to prevent oil leakage at the connection point, such as... Figure 2As shown, the front end of the front sealing head 5 has an oil outlet 51, and a hexagonal ring 52 is fixedly installed on the front end of the front sealing head 5. The rear end of the front sealing head 5 is threadedly connected to the inner wall of the front end of the cylinder 1. A sealing gasket 8 is snapped into the front end of the cylinder 1. The above-mentioned threaded connection can seal the connection with the sealing gasket 8 to prevent oil leakage. In addition, in order to prevent the threaded connection between the front sealing head 5 and the cylinder 1 from loosening, several sets of horn-shaped connecting holes 53 arranged in a circumferential array are provided on the cylinder 1 and the front sealing head 5. Threaded connectors 54 that fit the size of the horn-shaped connecting holes 53 are provided. The threaded connectors 54 fix the cylinder 1 and the front sealing head 5 together. By connecting the cylinder 1 and the front sealing head 5 with the threaded connectors 54, relative rotation between the cylinder 1 and the front sealing head 5 can be prevented, thereby effectively preventing the threaded connection from loosening.

[0031] To ensure the stability of the connection between the rear anti-detachment cover 3 and the cylinder 1, such as Figure 4 As shown, the rear anti-detachment cover 3 includes a cover plate 31, which is threadedly connected to the inner wall of the rear end of the cylinder 1 via a threaded cylinder 32 provided on the front end face. A hexagonal head 33 is fixedly provided on the cover plate 31. In addition, a connecting platform 11 is machined to the rear end of the cylinder 1, which has a plurality of connecting holes 12 arranged in a circumferential array. A plurality of anti-loosening bolts 34 are threaded through the cover plate 31 and are threadedly connected to the connecting holes 12. Based on the above structural scheme, after the rear anti-detachment cover 3 is threadedly connected to the cylinder 1, the two can be further fixedly connected by the anti-loosening bolts 34. The anti-loosening bolts 34 can prevent relative rotation between the rear anti-detachment cover 3 and the cylinder 1, thereby effectively preventing the threaded connection from loosening.

[0032] Finally, to ensure the sealing of the oil supply pipe 7 connection, such as Figure 5 As shown, an oil inlet 13 is formed at the junction of the oil inlet cylinder 14 and the cylinder 1. The bottom end of the oil supply pipe 7 is threadedly connected to the inner wall of the oil inlet cylinder 14. At the same time, a sealing plate 71 for sealing the oil inlet cylinder 14 is fixedly installed on the outer wall of the oil supply pipe 7. Meanwhile, a threaded cover 72 is fitted on the oil supply pipe 7 to squeeze the sealing plate 71 so that it fits against the oil inlet cylinder 14. It is also threadedly connected to the outer wall of the oil inlet cylinder 14. Based on the above structural scheme, after the oil supply pipe 7 is threadedly connected to the oil inlet cylinder 14, the threaded cover 72 can apply downward pressure to the sealing plate 71. At this time, the sealing plate 71 fits tightly against the top of the oil inlet cylinder 14 under the tension of the oil supply pipe 7 and the pressure of the threaded cover 72, thereby ensuring the sealing effect at the connection.

[0033] The working principle and usage process of this utility model:

[0034] When it is necessary to remove the return spring 6, the return spring 6 can be removed directly by removing the front sealing head 5 alone, without having to remove the piston assembly 2 first and then the return spring 6. When it is necessary to remove the piston assembly 2, both the front sealing head 5 and the rear anti-disengagement cover 3 can be removed. At this time, the piston assembly 2 can be directly pushed out by inserting a rod-shaped object from the front end of the cylinder 1. This makes the disassembly operation very simple and easy, which can significantly improve the working efficiency of the clutch pump during maintenance and reduce the difficulty of maintenance. In summary, by detachably installing the front sealing head 5 and the rear anti-disengagement cover 3 at the front and rear ends of the cylinder 1 respectively, the convenience of disassembling the entire clutch pump can be improved, which facilitates the smooth progress of maintenance work.

[0035] In addition, to ensure the stability of the connection between the parts, the cylinder 1 and the front sealing head 5 are fixedly connected as one unit by the threaded connector 54. This method can prevent relative rotation between the cylinder 1 and the front sealing head 5, thereby effectively preventing the threaded connection from loosening. In addition, after the rear anti-detachment cover 3 is threadedly connected to the cylinder 1, the two can be further fixed by the anti-loosening bolt 34. The anti-loosening bolt 34 can prevent relative rotation between the rear anti-detachment cover 3 and the cylinder 1, thereby effectively preventing the threaded connection from loosening.

[0036] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A clutch pump that is easy to disassemble and maintain, characterized in that, include: The cylinder (1) has a piston assembly (2) slidably installed inside it, and a push rod (4) is provided on the rear side of the piston assembly (2). At the same time, an oil inlet cylinder (14) is fixedly provided in the middle of the cylinder (1). The rear anti-detachment cover (3) is detachably installed at the rear end of the cylinder (1) to limit the stroke of the push rod (4) so ​​that it cannot detach from the cylinder (1); The front sealing head (5) is detachably installed at the front end of the cylinder (1) and is sealed to the cylinder (1); Oil supply pipe (7), which is detachably installed in oil inlet cylinder (14), is used to supply oil to cylinder (1); The inner end of the front closed head (5) is fixedly provided with a spring fixing cylinder (55), on which a reset spring (6) is sleeved, and the other end of the reset spring (6) is sleeved on the front end of the piston assembly (2).

2. The clutch pump for easy disassembly and maintenance according to claim 1, characterized in that: The surface of the spring fixing cylinder (55) is fixedly provided with a number of anti-slip ridges (57) arranged in a circumferential array, and the spring fixing cylinder (55) is provided with a number of oil passage holes (56) arranged in a circumferential array.

3. The clutch pump for easy disassembly and maintenance according to claim 1, characterized in that: The front end of the front sealing head (5) is provided with an oil outlet (51), and a hexagonal ring (52) is fixedly provided on the front sealing head (5). The rear end of the front sealing head (5) is threadedly connected to the inner wall of the front end of the cylinder (1), wherein a sealing gasket (8) is snapped into the front end of the cylinder (1).

4. A clutch pump that is easy to disassemble and maintain according to claim 1, characterized in that: The cylinder (1) and the front sealing head (5) are provided with a number of sets of horn-shaped connecting holes (53) arranged in a circumferential array, and threaded connectors (54) that fit the size of the horn-shaped connecting holes (53) are provided. The threaded connectors (54) fix the cylinder (1) and the front sealing head (5) together as one unit.

5. A clutch pump that is easy to disassemble and maintain according to claim 1, characterized in that: The rear anti-detachment cover (3) includes a cover plate (31), which is threadedly connected to the inner wall of the rear end of the cylinder (1) through a threaded cylinder (32) provided on the front end face, and a hexagonal head (33) is fixedly provided on the cover plate (31).

6. A clutch pump that is easy to disassemble and maintain according to claim 5, characterized in that: The cylinder (1) has a connecting base (11) formed at its rear end, and a number of connecting holes (12) arranged in a circular array are provided on it. A number of anti-loosening bolts (34) are provided on the cover plate (31) and are threaded to the connecting holes (12).

7. A clutch pump that is easy to disassemble and maintain according to claim 1, characterized in that: An oil inlet (13) is formed at the junction of the oil inlet cylinder (14) and the cylinder (1). The bottom end of the oil supply pipe (7) is threaded to the inner wall of the oil inlet cylinder (14). At the same time, a sealing plate (71) for sealing the oil inlet cylinder (14) is fixedly provided on the outer wall of the oil supply pipe (7).

8. A clutch pump that is easy to disassemble and maintain according to claim 7, characterized in that: The oil supply pipe (7) is fitted with a threaded cover (72), which is used to squeeze the sealing plate (71) to fit it against the oil inlet cylinder (14), and it is threadedly connected to the outer wall of the oil inlet cylinder (14).

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