A clutch master cylinder

Abstract

The utility model discloses a clutch master cylinder, including a cylinder body, an oil chamber is arranged in the cylinder body, a piston assembly is movably connected in the oil chamber, a push rod assembly is connected to the end of the piston assembly, an oil filling channel is arranged at one end of the oil chamber away from the push rod assembly, a one-way valve assembly is arranged between the oil filling channel and the piston assembly, the cylinder body is connected to an oil cup assembly, the oil cup assembly includes an oil storage chamber, and the oil storage chamber is connected to the oil filling channel. The utility model provides a clutch master cylinder, which can ensure the smoothness of the clutch master cylinder operation on the basis of reducing the processing cost, and can quickly realize the filling and discharge of the oil in the cylinder body.

Description

Technical Field

[0001] The utility model relates to the technical field of clutches, in particular to a clutch master cylinder. Background Art

[0002] At present, compensation holes are generally provided in the clutch master cylinder to ensure the smooth flow of internal oil and the stable operation of the clutch master cylinder. However, the processing of the compensation holes requires extremely high precision, has high production requirements, and increases production costs.

[0003] For example, the publication number "CN103982572A" discloses "a self-adjusting fulcrum mechanism of a mechanical clutch operating mechanism", including a support rod, a mounting seat, a constant pressure spring, a free-travel piston and a return spring. A support rod piston cavity is provided in the mounting seat, and the piston portion of the support rod is installed in the support rod piston cavity and is provided with a guide hole. Its support portion extends out of the support rod piston cavity, and a free-travel piston cylinder is provided in the support rod piston cavity. The constant pressure spring is sleeved on the free-travel piston cylinder, and its two ends respectively abut against the end face of the support rod piston cavity and the bottom of the guide hole. The free-travel piston and the return spring are installed in the free-travel piston cylinder, and one end of the free-travel piston has a conical surface, and the return spring abuts between the free-travel piston and the end face of the free-travel piston cylinder. However, in actual applications, due to the high requirements for opening compensation holes, there is a problem of high cost in machining compensation holes. Summary of the invention

[0004] In view of the problems in the prior art mentioned in the background technology that the cost of machining compensation holes is high and the production requirements are high, the utility model provides a clutch master cylinder, which can ensure the smooth operation of the clutch master cylinder on the basis of reducing the machining cost and can quickly realize the filling and discharge of the oil inside the cylinder.

[0005] The second invention objective of the present application is to improve the connection stability and fluidity between the oil cup assembly and the cylinder body.

[0006] To achieve the above purpose, the utility model adopts the following technical solutions.

[0007] A clutch master cylinder comprises a cylinder body, an oil chamber is arranged in the cylinder body, a piston assembly is movably connected in the oil chamber, a push rod assembly is connected to the end of the piston assembly, an oil injection channel is arranged at one end of the oil chamber away from the push rod assembly, a one-way valve assembly is arranged between the oil injection channel and the piston assembly, the cylinder body is connected to an oil cup assembly, the oil cup assembly includes an oil storage chamber, and the oil storage chamber is connected to the oil injection channel. An oil chamber is provided inside the cylinder body, and a piston assembly is slidably connected to the oil chamber. The piston assembly can slide in the oil chamber to squeeze the oil, thereby realizing action feedback in the vehicle system, wherein an oil filling channel is opened on the oil cylinder, the oil filling channel is connected to the oil cup assembly, and a one-way valve assembly is provided between the piston assembly and the oil filling channel. The one-way valve assembly can be used to open and close the one-way valve assembly according to the movement of the piston assembly during use, thereby realizing rapid oil discharge and oil filling. The one-way valve assembly is used to control the flow direction of the oil during the compression and recovery process, thereby realizing adaptive changes and improving stability. There is no need to open high-precision compensation holes, thereby reducing production costs.

[0008] Preferably, the oil cup assembly includes an oil cup body, the oil cup body includes an oil cup bottom plate, a connecting port is provided on the oil cup bottom plate, a connecting bolt is connected to the connecting port, and the connecting bolt passes through the connecting port to connect with the cylinder body. By connecting the connecting bolt through the connecting port to connect with the cylinder body, the connection stability between the oil cup assembly and the cylinder body can be improved.

[0009] Preferably, the connecting bolt is provided with a bolt flow channel, and the bolt flow channel connects the oil storage chamber and the oil injection channel. The connecting bolt is provided with a bolt flow channel, and the connection between the oil storage chamber and the oil injection channel is achieved through the bolt flow channel, so that the smoothness of the oil flow can be ensured without affecting the connection stability, thereby achieving the second invention purpose of the present invention.

[0010] Preferably, the one-way valve assembly abuts against the oil injection channel and is connected to the piston assembly. The one-way valve assembly abuts against the oil injection channel to control the opening and closing of the oil injection channel, and is connected to the piston assembly to realize the correlation control of the piston assembly action on the opening and closing action of the oil injection channel, thereby improving the adaptability of the device.

[0011] Preferably, the one-way valve assembly abuts against the oil injection channel and is connected to the piston assembly, and a return spring is connected to the piston assembly, and the other end of the return spring away from the piston assembly abuts against the one-way valve assembly. A return spring is arranged between the one-way valve assembly and the piston assembly, and the ends of the return spring abut against the piston assembly and the one-way valve assembly respectively, so as to quickly realize the self-reset effect of the piston assembly in an unstressed state, realize the rapid reset of the piston assembly, and prevent the one-way valve assembly from being separated from the position of the end of the oil chamber, thereby ensuring the stability of the one-way valve assembly.

[0012] Preferably, the one-way valve assembly is provided with a one-way valve seat on one side close to the oil injection channel, a one-way sealing ring is provided inside the one-way valve seat, a one-way sealing ring is connected to the one-way spring, and the one-way spring is connected to the one-way valve seat. The one-way sealing ring of the one-way valve seat, the one-way spring and the one-way valve stem provide a stable positioning and guiding function to ensure the stability of the one-way valve assembly, and the one-way sealing ring is used to realize the opening and closing control of the oil injection channel, and the one-way spring is used to realize the reset and abutment effect of the one-way sealing ring, and is used in conjunction with the one-way valve stem, and the one-way valve stem ensures the connectivity between the piston assembly and the one-way valve assembly.

[0013] Preferably, the cylinder body is connected with an oil outlet assembly, the oil outlet assembly includes an oil outlet connection portion arranged on the cylinder body, the oil outlet connection portion includes an oil outlet channel, the oil outlet channel is arranged close to the tangential direction of the oil chamber, and the oil outlet channel communicates with the oil chamber. The cylinder body is connected with an oil outlet assembly, the oil outlet assembly realizes the oil outlet action inside the oil chamber during the extrusion process, wherein the oil outlet assembly includes an oil outlet connection portion arranged on the cylinder body, the oil outlet connection portion and the cylinder body are an integrally formed structure, the oil outlet connection portion is provided with an oil outlet channel, wherein the oil outlet channel is close to the tangential direction of the oil chamber, so that the oil outlet inside the oil chamber can be smoother, the connecting area between the oil chamber and the oil outlet channel is increased, and the stability of the oil flow is ensured.

[0014] Preferably, the oil outlet connection part is detachably connected to an oil outlet pipe joint, a sealing cone is provided between the oil outlet pipe joint and the oil outlet connection part, and the sealing cone is snap-connected in the oil outlet passage. A sealing cone is provided between the pipe joint and the oil outlet connection part, wherein the sealing cone can improve the sealing performance, and the oil outlet pipe joint and the oil outlet connection part are non-tighteningly connected.

[0015] Preferably, the oil outlet pipe joint is provided with an opening at one end away from the oil outlet connection portion, and a dust plug is detachably connected to the opening to prevent external dust from falling into the interior of the pipeline.

[0016] Preferably, the piston assembly is sleeved with a spring seat on the side away from the push rod assembly, the return spring is arranged on the spring seat, a clamping spring sheet is arranged on the spring seat, a stop groove is arranged on the piston assembly, and the clamping spring sheet is clamped and connected to the stop groove. The clamping spring sheet connected to the stop groove can reduce the complexity of processing, and the return spring is limited by sleeved spring seat.

[0017] The beneficial effects of the utility model are as follows:

[0018] (1) It can ensure the smooth operation of the clutch master cylinder while reducing the processing cost, and can quickly realize the filling and discharge of the oil inside the cylinder;

[0019] (2) Improve the connection stability and fluidity between the oil cup assembly and the cylinder body;

[0020] (3) Able to ensure smoothness and stability during oil discharge. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a cross-sectional view of the utility model.

[0022] Figure 2 It is a top view of the utility model.

[0023] Figure 3 yes Figure 1 A partial enlarged view of point A in the middle.

[0024] Figure 4 yes Figure 1 A partial enlarged view of point B in the middle.

[0025] Figure 5 yes Figure 1 A partial enlarged view of point C in the middle.

[0026] Figure 6 yes Figure 2 Rotated cross-sectional view at AA in the middle.

[0027] In the figure:

[0028] 1 cylinder body, 11 shield, 12 elastic retaining ring for hole;

[0029] 2 oil chambers, 21 oil injection channels;

[0030] 3 piston assembly, 31 connecting chamber, 32 spring seat, 321 clamping spring sheet, 33 back-stop groove;

[0031] 4 push rod assembly;

[0032] 5 one-way valve assembly, 51 one-way valve stem, 52 one-way valve seat, 53 one-way sealing ring, 54 one-way spring,

[0033] 6 oil cup assembly, 61 oil storage chamber, 62 oil cup body, 63 oil cup bottom plate, 64 connecting port, 65 connecting bolt, 651 bolt flow channel;

[0034] 7 oil outlet assembly, 71 oil outlet connection portion, 72 oil outlet channel, 73 oil outlet pipe joint, 74 sealing cone, 75 opening, 76 dust plug;

[0035] 8 Return spring. DETAILED DESCRIPTION

[0036] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0037] Embodiment 1:

[0038] like Figure 1 ,2 As shown in Figure 3, a clutch master cylinder includes a cylinder body 1, an oil chamber 2 is provided in the cylinder body 1, a piston assembly 3 is movably connected in the oil chamber 2, a push rod assembly 4 is connected to the end of the piston assembly 3, an oil injection channel 21 is provided at one end of the oil chamber 2 away from the push rod assembly 4, a one-way valve assembly 5 is provided between the oil injection channel 21 and the piston assembly 3, an oil cup assembly 6 is connected to the cylinder body 1, the oil cup assembly 6 includes an oil storage chamber 61, and the oil storage chamber 61 is connected to the oil injection channel 21. The one-way valve assembly 5 abuts against the oil injection channel 21 and is connected to the piston assembly 3. The one-way valve assembly 5 abuts against the oil injection channel 21 and is connected to the piston assembly 3, and a return spring 8 is connected to the piston assembly 3, and the other end of the return spring 8 away from the piston assembly 3 abuts against the one-way valve assembly 5. A one-way valve seat 52 is provided on one side of the one-way valve assembly 5 close to the oil injection channel 21 . A one-way sealing ring 53 is provided inside the one-way valve seat 52 . A one-way spring 54 is connected to the one-way sealing ring 53 . The one-way spring 54 is connected to the one-way valve seat 52 .

[0039] An oil chamber 2 is provided inside the cylinder body 1, and the oil chamber 2 is slidably connected to a piston assembly 3. The piston assembly 3 can slide in the oil chamber 2 to squeeze the oil, thereby providing action feedback in the vehicle system, wherein an oil injection channel 21 is provided on the oil cylinder, the oil injection channel 21 is connected to the oil cup assembly, and a one-way valve assembly 5 is provided between the piston assembly 3 and the oil injection channel 21. During use, the one-way valve assembly 5 can be opened and closed according to the movement of the piston assembly 3, thereby realizing the actions of rapid oil discharge and oil injection, and the one-way valve assembly 5 is used to control the flow direction of the oil during the compression and recovery process, thereby realizing adaptive changes and improving stability. There is no need to open high-precision compensation holes, thereby reducing production costs.

[0040] The one-way valve assembly 5 abuts against the oil injection channel 21 to control the opening and closing of the oil injection channel 21. At the same time, it is connected with the piston assembly 3 to realize the correlation control of the opening and closing of the oil injection channel 21 by the action of the piston assembly 3, thereby improving the adaptability of the device.

[0041] A return spring 8 is arranged between the one-way valve assembly 5 and the piston assembly 3. The ends of the return spring 8 respectively abut against the piston assembly 3 and the one-way valve assembly 5 to quickly realize the self-resetting effect of the piston assembly 3 in an unstressed state, thereby realizing rapid resetting of the piston assembly 3 and preventing the one-way valve assembly 5 from being separated from the end of the oil chamber 2, thereby ensuring the stability of the one-way valve assembly 5.

[0042] The one-way valve seat 52, the one-way sealing ring 53, the one-way spring 54 and the one-way valve stem 51 provide a stable positioning and guiding function to ensure the stability of the one-way valve assembly 5, and the one-way sealing ring 53 is used to realize the opening and closing control of the oil injection channel 21, and the one-way spring 54 is used to realize the resetting and abutment effect of the one-way sealing ring 53. When used in conjunction with the one-way valve stem 51, the one-way valve stem 51 ensures the connectivity between the piston assembly 3 and the one-way valve assembly 5.

[0043] The assembly and working process of the clutch master cylinder in this embodiment are as follows: In this embodiment, a cylinder body 1 is included as a main body, and the cylinder body 1 includes an oil outlet connection part 71, and the cylinder body 1 is also provided with an oil inlet connection part connected to the oil cup assembly 6, wherein the two are vertically staggered, and an oil chamber 2 is provided inside the cylinder body 1, wherein the oil chamber 2 is in the shape of a circular hollow cavity structure, and a piston assembly 3 is slidably connected in the oil chamber 2, and the end of the piston assembly 3 is connected to the push rod assembly 4, wherein a shield 11 is connected to the end of the cylinder body 1 near the push rod assembly 4, and the shield 11 is in the shape of The push rod assembly 4 is in the shape of an "E", and a spherical ball head is provided at the end of the push rod assembly 4 close to the piston assembly 3, and an arc-shaped groove corresponding to the ball head is provided at the corresponding connected part of the piston assembly 3. An elastic retaining ring 12 for a hole is connected to the end of the cylinder body 1, wherein a connecting cavity 31 is provided on the side of the piston assembly 3 away from the push rod assembly 4, and the side of the connecting cavity 31 close to the push rod assembly 4 is a closed structure, and the other side is a through hole structure, and a one-way valve stem 51 in the one-way valve assembly 5 is connected inside the connecting cavity 31, and one end of the one-way valve stem 51 is connected to the connecting cavity 31, and the other end is connected to the one-way valve stem 51. The one-way valve seat 52 is connected, and a one-way spring 54 and a one-way sealing ring 53 are arranged inside the one-way valve seat 52, wherein the one-way spring 54 is connected to the one-way sealing ring 53, and the one-way sealing ring 53 is directly opposite to the oil injection channel 21, thereby forming a one-way valve structure, and the oil injection channel 21 is connected to the oil cup assembly 6 connected to the cylinder body 1. During the working process, when the push rod assembly 4 drives the piston assembly 3 to move, an extrusion force is generated, and the one-way valve assembly 5 is driven to move at the same time, the one-way sealing ring 53 abuts against the oil injection channel 21 to close the oil inlet path, and oil is discharged through the oil outlet connection part 71. Then, when the movement stops, After the operation, the push rod assembly 4 removes the external force. At this time, due to the elastic effect of the return spring 8, the piston assembly 3 can be driven to return to the initial position. At this time, the one-way valve assembly 5 is also restored to the initial position, and the oil filling channel 21 is reconnected to the oil chamber 2, ensuring the uniform and rapid filling of the internal oil. In this embodiment, an outer plate for connection is also provided on the outside of the cylinder body 1, and stud bolts are provided on the outer plate for connection. In this embodiment, the above-mentioned arrangement can quickly realize the filling and discharge of the oil inside the cylinder body 1, thereby ensuring the normal operation of the clutch.

[0044] Embodiment 2:

[0045] like Figure 4As shown, different from the embodiment 1, in this embodiment, a spring seat 32 is sleeved on the side of the piston assembly 3 away from the push rod assembly 4, the return spring 8 is arranged on the spring seat 32, a clamping spring piece 321 is arranged on the spring seat 32, a stop groove 33 is arranged on the piston assembly 3, and the clamping spring piece 321 is clamped and connected to the stop groove 33. The clamping spring piece 321 connected to the stop groove 33 can reduce the complexity of processing, and the return spring 8 can be limited by sleeved spring seat 32.

[0046] The assembly and working process of the clutch master cylinder in this embodiment are as follows: In this embodiment, a cylinder body 1 is included as a main body, and the cylinder body 1 includes an oil outlet connection part 71. The cylinder body 1 is also provided with an oil inlet connection part connected to the oil cup assembly 6, wherein the two are vertically staggered, and an oil chamber 2 is provided inside the cylinder body 1, wherein the oil chamber 2 is a circular hollow cavity structure, and a piston assembly 3 is slidably connected in the oil chamber 2, and a push rod assembly 4 is connected to the end of the piston assembly 3, wherein a shield 11 is connected to the end of the cylinder body 1 close to the push rod assembly 4, and the shield 11 is in the shape of an "E" letter, and a spherical ball head is provided at the end of the push rod assembly 4 close to the piston assembly 3, and a circular arc groove corresponding to the ball head is provided at the corresponding connection part of the piston assembly 3, and the cylinder body 1 is provided with a circular arc groove corresponding to the ball head. The end of the piston assembly 3 is connected with an elastic circlip 12 for a hole, and a spring seat 32 is provided on the side of the piston assembly 3 away from the push rod assembly 4. The shape of the spring seat 32 is similar to the shape of the piston assembly 3 at this location, and is a sleeve-like structure, which is sleeved on the end of the piston assembly 3, wherein the spring seat 32 is also provided with a snap-on spring piece 321 that can be elastically deformed, and a stop groove 33 is provided at the corresponding position of the piston assembly 3, wherein the stop direction of the stop groove 33 is the side away from the push rod assembly 4, and the snap-on spring piece 321 is snap-connected with the stop groove 33, and the spring seat 32 is provided with an avoidance opening 75 at the position corresponding to the connecting chamber 31, and a retaining ring that can limit the reset spring 8 is provided on the spring seat 32. During the installation process, the spring seat 32 is first sleeved on the end of the piston assembly 3, Subsequently, the return spring 8 is sleeved on the spring seat 32, wherein a connecting chamber 31 is provided on the side of the piston assembly 3 away from the push rod assembly 4, the side of the connecting chamber 31 close to the push rod assembly 4 is a closed structure, and the other side is a through-hole structure, and a one-way valve stem 51 in the one-way valve assembly 5 is connected inside the connecting chamber 31, one end of the one-way valve stem 51 is connected to the connecting chamber 31, and the other end is connected to the one-way valve seat 52, and a one-way spring 54 and a one-way sealing ring 53 are provided inside the one-way valve seat 52, wherein the one-way spring 54 is connected to the one-way sealing ring 53, and the one-way sealing ring 53 is opposite to the oil injection channel 21, thereby forming a one-way valve structure, and the oil injection channel 21 is connected to the oil cup assembly 6 connected to the cylinder body 1, and during operation, when the push rod assembly 4 drives the piston assembly 3 The one-way valve assembly 5 is in motion, generating an extrusion force, and driving the one-way valve assembly 5 to move, closing the oil inlet path through the one-way sealing ring 53 abutting the oil filling channel 21, and discharging oil through the oil outlet connection 71. Subsequently, when the action stops, the push rod assembly 4 removes the external force. At this time, due to the elastic effect of the reset spring 8, the piston assembly 3 can be driven to return to its initial position. At this time, the one-way valve assembly 5 also returns to its initial position, and the oil filling channel 21 is reconnected to the oil chamber 2, thereby ensuring uniform and rapid filling of the internal oil. In this embodiment, an outer plate for connection is also provided on the outside of the cylinder body 1, and stud bolts are provided on the outer plate for connection. In this embodiment, the above-mentioned arrangement can quickly realize the filling and discharge of the oil inside the cylinder body 1, thereby ensuring the normal operation of the clutch.

[0047] Embodiment 3:

[0048] like Figure 5 As shown, different from the embodiment 1, the oil cup assembly 6 in this embodiment includes an oil cup body 62, the oil cup body 62 includes an oil cup bottom plate 63, the oil cup bottom plate 63 is provided with a connecting port 64, the connecting port 64 is connected with a connecting bolt 65, and the connecting bolt 65 passes through the connecting port 64 and is connected to the cylinder body 1. The connecting bolt 65 is provided with a bolt flow channel 651, and the bolt flow channel 651 connects the oil storage chamber 61 and the oil injection channel 21.

[0049] The connection bolt 65 passes through the connecting port 64 and is connected to the cylinder body 1, which can improve the connection stability between the oil cup assembly and the cylinder body 1. A bolt flow channel 651 is provided on the connection bolt 65, and the connection between the oil storage chamber 61 and the oil injection channel 21 is achieved through the bolt flow channel 651, so that the smoothness of the oil flow can be ensured without affecting the connection stability, thereby achieving the second invention purpose of the present invention.

[0050] The assembly and working process of the clutch master cylinder in this embodiment are as follows: In this embodiment, it includes a cylinder body 1 as a main body, the cylinder body 1 includes an oil outlet connection part 71, and the cylinder body 1 is also provided with an oil inlet connection part connected to the oil cup assembly 6, wherein the two are vertically staggered, wherein the oil cup assembly 6 includes an oil cup body 62, and an oil storage chamber 61 capable of accommodating oil is arranged inside the oil cup body 62, and the oil cup body 62 includes an oil cup bottom plate 63 arranged at the bottom, and a connecting port 64 is opened on the oil cup bottom plate 63, wherein a connecting bolt 65 is arranged on the connecting port 64, and the connecting bolt 65 passes through the connecting port 64 to be connected to the cylinder body 1, and in this embodiment, a connecting bolt 65 is provided on the connecting bolt 65 to communicate with the oil injection channel 21 The bolt flow channel 651 is provided with a gasket between the connecting bolt 65 and the oil cup bottom plate 63, and an O-ring is provided between the oil cup bottom plate 63 and the cylinder body 1. An oil chamber 2 is provided inside the cylinder body 1, wherein the oil chamber 2 is a circular hollow cavity structure, a piston assembly 3 is slidably connected in the oil chamber 2, and a push rod assembly 4 is connected to the end of the piston assembly 3, wherein a shield 11 is connected to the end of the cylinder body 1 close to the push rod assembly 4, and the shield 11 is in an "E" shape. A spherical ball head is provided at the end of the push rod assembly 4 close to the piston assembly 3, and a circular arc groove corresponding to the ball head is provided at the corresponding connection part of the piston assembly 3, and a hole elastic retaining ring 12 is connected to the end of the cylinder body 1, wherein the piston assembly 3 is far away from the piston assembly 3. A connecting chamber 31 is provided on one side away from the push rod assembly 4. The side of the connecting chamber 31 close to the push rod assembly 4 is a closed structure, and the other side is a through-hole structure. A one-way valve stem 51 in the one-way valve assembly 5 is connected inside the connecting chamber 31. One end of the one-way valve stem 51 is connected to the connecting chamber 31, and the other end is connected to the one-way valve seat 52. A one-way spring 54 and a one-way sealing ring 53 are provided inside the one-way valve seat 52, wherein the one-way spring 54 is connected to the one-way sealing ring 53, and the one-way sealing ring 53 is directly opposite to the oil injection channel 21, thereby forming a one-way valve structure. The oil injection channel 21 is connected to the oil cup assembly 6 connected to the cylinder body 1. During operation, when the push rod assembly 4 drives the piston assembly 3 to move, an extrusion force is generated, and the one-way valve stem 51 is driven to move. It moves toward the valve assembly 5, closes the oil inlet path through the one-way sealing ring 53 abutting the oil filling channel 21, and the oil is discharged through the oil outlet connection 71. Then, when the action stops, the push rod assembly 4 removes the external force. At this time, due to the elastic effect of the reset spring 8, the piston assembly 3 can be driven to return to the initial position. At this time, the one-way valve assembly 5 also returns to the initial position, and the oil filling channel 21 is reconnected to the oil chamber 2, ensuring the uniform and rapid filling of the internal oil. In this embodiment, an outer plate for connection is also provided on the outside of the cylinder body 1, and stud bolts are provided on the outer plate for connection. In this embodiment, the above-mentioned arrangement can quickly realize the filling and discharge of the oil inside the cylinder body 1, thereby ensuring the normal operation of the clutch.

[0051] Embodiment 4:

[0052] like Figure 6 As shown, the difference from the embodiment 1 is that the cylinder body 1 in this embodiment is connected with an oil outlet assembly 7, and the oil outlet assembly 7 includes an oil outlet connection portion 71 arranged on the cylinder body 1, and the oil outlet connection portion 71 includes an oil outlet passage 72, and the oil outlet passage 72 is arranged in a tangential direction close to the oil chamber 2, and the oil outlet passage 72 communicates with the oil chamber 2. The oil outlet connection portion 71 is detachably connected with an oil outlet pipe joint 73, and a sealing cone 74 is arranged between the oil outlet pipe joint 73 and the oil outlet connection portion 71, and the sealing cone 74 is snap-connected in the oil outlet passage 72. The oil outlet pipe joint 73 is provided with an opening 75 at one end away from the oil outlet connection portion 71, and a dust plug 76 is detachably connected to the opening 75.

[0053] The cylinder body 1 is connected to an oil outlet assembly 7, which realizes the oil outlet action inside the oil chamber 2 during the extrusion process, wherein the oil outlet assembly 7 includes an oil outlet connection portion 71 arranged on the cylinder body 1, and the oil outlet connection portion 71 and the cylinder body 1 are an integrally formed structure, and an oil outlet channel 72 is arranged on the oil outlet connection portion 71, wherein the oil outlet channel 72 is close to the tangential direction of the oil chamber 2, so that the oil outlet inside the oil chamber 2 can be smoother, and the connecting area between the oil chamber 2 and the oil outlet channel 72 is increased, thereby ensuring the stability of the oil flow. A sealing cone 74 is arranged between the pipe joint and the oil outlet connection portion 71, wherein the sealing cone 74 can improve the sealing performance, and the oil outlet pipe joint 73 and the oil outlet connection portion 71 are non-tighteningly connected. The dust plug 76 can prevent external dust from falling into the interior of the pipeline.

Claims

1. A clutch master cylinder, comprising a cylinder body (1), wherein an oil chamber (2) is provided in the cylinder body (1), a piston assembly (3) is movably connected in the oil chamber (2), and a push rod assembly (4) is connected to the end of the piston assembly (3), characterized in that: An oil injection passage (21) is provided at one end of the oil chamber (2) away from the push rod assembly (4), and a one-way valve assembly (5) is provided between the oil injection passage (21) and the piston assembly (3); the cylinder body (1) is connected to an oil cup assembly (6), and the oil cup assembly (6) includes an oil storage chamber (61), and the oil storage chamber (61) is connected to the oil injection passage (21); the cylinder body (1) is connected to an oil outlet assembly (7), and the oil outlet assembly (7) includes an oil outlet connection portion (71) provided on the cylinder body (1), and the oil outlet connection portion (71) includes an oil outlet passage (72), and the oil outlet passage (72) is provided in a tangential direction close to the oil chamber (2), and the oil outlet passage (72) is connected to the oil chamber (2).

2. A clutch master cylinder according to claim 1, characterized in that: The oil cup assembly (6) comprises an oil cup body (62), the oil cup body (62) comprises an oil cup bottom plate (63), a connecting port (64) is provided on the oil cup bottom plate (63), a connecting bolt (65) is connected to the connecting port (64), and the connecting bolt (65) passes through the connecting port (64) to be connected to the cylinder body (1).

3. A clutch master cylinder according to claim 2, characterized in that: The connecting bolt (65) is provided with a bolt flow channel (651), and the bolt flow channel (651) is connected to the oil storage chamber (61) and the oil injection channel (21).

4. A clutch master cylinder according to claim 1, characterized in that: The one-way valve assembly (5) abuts against the oil injection channel (21) and is connected to the piston assembly (3); a return spring (8) is connected to the piston assembly (3); the other end of the return spring (8) away from the piston assembly (3) abuts against the one-way valve assembly (5).

5. A clutch master cylinder according to claim 4, characterized in that: The one-way valve assembly (5) comprises a one-way valve stem (51), and the piston assembly (3) comprises a connecting chamber (31), wherein the connecting chamber (31) is movably connected to the one-way valve stem (51).

6. A clutch master cylinder according to claim 4, characterized in that: A one-way valve seat (52) is provided on one side of the one-way valve assembly (5) close to the oil injection channel (21), a one-way sealing ring (53) is provided inside the one-way valve seat (52), a one-way spring (54) is connected to the one-way sealing ring (53), and the one-way spring (54) is connected to the one-way valve seat (52).

7. A clutch master cylinder according to claim 1, characterized in that: The oil outlet connection portion (71) is detachably connected to an oil outlet pipe joint (73), a sealing cone (74) is provided between the oil outlet pipe joint (73) and the oil outlet connection portion (71), and the sealing cone (74) is snap-fitted and connected in the oil outlet passage (72).

8. A clutch master cylinder according to claim 7, characterized in that: An opening (75) is provided at one end of the oil outlet pipe joint (73) away from the oil outlet connection portion (71), and a dust plug (76) is detachably connected to the opening (75).

9. A clutch master cylinder according to any one of claims 4 to 6, characterized in that: A spring seat (32) is sleeved on a side of the piston assembly (3) away from the push rod assembly (4); the return spring (8) is arranged on the spring seat (32); a snap-fit ​​spring sheet (321) is arranged on the spring seat (32); a stop groove (33) is arranged on the piston assembly (3); and the snap-fit ​​spring sheet (321) is snap-connected to the stop groove (33).

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