A clutch system exhaust auxiliary tooling

Abstract

The present invention provides a clutch system exhaust auxiliary tooling, which includes a base plate, a foot pedal, a lower pressure arm, a fixed arm, a column vertically arranged on the base plate, and an oil pump body. A pressing rod is floatingly arranged on the top of the oil pump body, and a pressing plate is provided at the upper end of the pressing rod, and a liquid outlet pipe is provided on one side of the pressing plate. The right end of the right section of the lower pressure arm is rotatably connected to the upper end of the column, and the right section has a pressing surface. The left section of the lower pressure arm is arranged downwardly, and the foot pedal is connected to the left end of the left section. The lower end of the fixed arm is connected to the upper end of the column, and a first elastic member is provided between the upper end of the fixed arm and the left end of the right section. When in use, the foot pedal is stepped on, and the foot pedal drives the pressing surface on the lower pressure arm to press down the pressing plate and the pressing rod, thereby pumping brake fluid in the oil pump body cavity into the oil pipe. When the foot pedal is released, the brake fluid in the oil pump body cavity stops flowing into the oil pipe. The present invention can make the exhaust process of the clutch system more time-saving and labor-saving, and reduce the waste of brake fluid.

Description

Technical Field

[0001] The invention belongs to the technical field of automobile parts, and in particular relates to an exhaust auxiliary tooling for a clutch system. Background Art

[0002] The clutch system is essential for manual transmission vehicles. Its primary function is to transmit and disconnect engine power, ensuring smooth shifting and preventing overload. This provides safe and reliable clutching performance, while also preventing issues like excessive slip, starting shock, and hill climbing difficulties during operation. It also provides a sound foundation for transmission NVH. On today's automotive production lines, improved sealant performance and mature production line operating techniques mean that the clutch system piping is virtually sealed on newly-produced vehicles, with minimal air or oil leaks.

[0003] However, newly-produced cars sometimes still experience a clutch failure, meaning the clutch pedal becomes weak or the clutch pedal cannot return to its original position due to air entering the clutch system's pipelines. This is mainly because when the equipment is used to vacuum and refill the clutch pipeline with brake fluid, it is not always completely vacuumed, which causes gas to enter the pipeline. In this case, the clutch system needs to be vented after the vehicle rolls off the assembly line. Because the production line is an assembly line operation, the venting process needs to be as time-saving and labor-saving as possible. When designers need to verify clutch pipeline components, or replace clutch system components for maintenance, the clutch system also needs to be vented after reassembling the clutch pipeline and refilling the brake fluid. In all of the above situations, the clutch system needs to be vented to ensure normal operation.

[0004] There are two methods for exhausting the clutch system in the prior art:

[0005] The first one is: Figure 1 As shown, when the pipeline is sealed, one person repeatedly steps on the clutch pedal 13 in the cab. After stepping on it about ten times, the clutch pedal is not released. At this time, another person unscrews the drain bolt 16 of the clutch booster. At this time, brake fluid will flow out from the drain port into the oil receiving basin 17. After the brake fluid flows for a while, the drain bolt is tightened. After repeating the above steps about 3 or 4 times, the air in the clutch pipeline will be completely exhausted. This exhaust process requires two people to complete. At the same time, brake fluid continues to flow out during the exhaust process. When the brake fluid in the oil reservoir is below the lower limit, an appropriate amount of brake fluid needs to be added (the brake fluid in the oil reservoir does not exceed its upper limit).

[0006] Another method is to prepare a modified syringe, which is inserted into an oil pipe 19 of appropriate length on an ordinary syringe 18, such as Figure 2As shown, first fill the syringe 18 with brake fluid through the oil pipe. Figure 3 As shown, an oil receiving basin 17 is placed on the ground just below the oil drain bolt to receive the brake fluid flowing out during the exhaust process; the specific exhaust process is: Step 1: Loosen the oil drain bolt and quickly insert the oil pipe 19 of the modified syringe, then push the syringe 181 hard by hand, and use pressure to push the brake fluid in the syringe into the clutch booster and into the clutch pipeline, and finally the pushed brake fluid enters the oil reservoir; Step 2: When all the brake fluid in the syringe 18 is pushed out, unplug the oil pipe, and quickly tighten the oil drain bolt at the same time, refill the syringe with brake fluid, and repeat step 1. During the pushing process, pay attention to the oil in the oil reservoir. If it exceeds the upper limit of its liquid level, use another syringe to suck away the excess brake fluid; taking a syringe with a capacity of 100ml as an example, generally repeating 2-3 times can empty the gas in the clutch pipeline. If a large-capacity syringe is used, the process of pushing the syringe is very laborious and is not suitable for this exhaust process.

[0007] The first exhaust method mentioned above requires the cooperation of two people to complete the operation, which involves a large number of people. At the same time, it is necessary to continuously step on the clutch pedal in the cab. The space in the cab is limited, and stepping on the pedal is relatively laborious. In addition, the exhaust process takes a long time. Moreover, since the drain bolt used to seal the oil drain port is removed, brake fluid continues to flow out of the oil drain port during the exhaust process, resulting in a large amount of brake fluid being wasted.

[0008] Although the second exhaust method mentioned above reduces the number of people used and only requires one person, it is very laborious to push the syringe by hand, and 2-3 tubes of brake fluid are needed to completely exhaust the gas in the clutch pipeline, resulting in a time-consuming and labor-intensive exhaust process. In addition, when the syringe is replenished with brake fluid 2 to 3 times during the exhaust process, the brake fluid will flow out of the drain port each time the drain bolt is removed and installed, resulting in a lot of brake fluid waste.

[0009] Therefore, how to design a clutch system exhaust auxiliary tooling to make the clutch system exhaust process more time-saving and labor-saving and reduce the waste of brake fluid has become a technical problem that technical personnel in this field urgently need to solve. Summary of the Invention

[0010] The purpose of the present invention is to provide a clutch system exhaust auxiliary tooling to solve the above technical problems in the prior art.

[0011] To achieve the above object, the present invention provides the following technical solutions:

[0012] The top end of the oil pump is installed in the oil pumping station, and the top end of the oil pump is installed in the oil pumping station, and the top end of the oil pump is installed in the oil pumping station. The pedal is arranged horizontally and is connected to the left end of the left section of the lower pressure arm, and the foot pedal and the column are symmetrically arranged on the left and right sides of the oil pump body; the lower end of the fixed arm is connected to the upper end of the column, the upper end of the fixed arm is bent to the left and is located directly above the right section, and a first elastic member is provided between the upper end of the fixed arm and the left end of the right section for keeping the pressing surface and the top surface of the pressing plate at a certain distance in the vertical direction; when in use, by stepping on the foot pedal, the foot pedal drives the pressing surface on the lower pressure arm to press downward on the pressing plate and the pressing rod, so that the brake fluid in the inner cavity of the oil pump body can be drawn into the oil pipe, and when the foot pedal is released, the brake fluid in the inner cavity of the oil pump body stops flowing into the oil pipe.

[0013] Preferably, the oil pump body includes a sealing cover, a mounting hole is provided on the top of the oil pump body, a limiting cylinder extending vertically downward is provided in the mounting hole, and the sealing cover is used to seal the upper end port of the limiting cylinder; the diameter of the lower part of the pressing rod is larger than the diameter of the upper part of the pressing rod, and the upper side surface of the step plate at the connection between the upper and lower parts of the pressing rod is used to block and connect with the inner wall of the sealing cover, and the sealing cover is provided with a through hole for the upper part of the pressing rod to pass through, and the through hole is slidably fitted with the upper part of the pressing rod; the outer circumferential surface of the lower part of the pressing rod is slidably fitted with the inner circumferential surface of the limiting cylinder, and a second elastic member is provided between the bottom of the limiting cylinder and the lower side surface of the step plate.

[0014] Preferably, the second elastic member is a spring.

[0015] Preferably, a limiting cover for the second elastic member to be sleeved is provided in the bottom of the limiting cylinder.

[0016] Preferably, the limiting cover is a conical structure.

[0017] Preferably, the limiting cover includes a circular plate and a circular ring parallel to the circular plate. The circular plate and the circular ring are coaxially arranged and the circular plate is located above the circular ring. The circular plate and the circular ring are connected by a plurality of inclined connecting rods, and each of the connecting rods is evenly distributed on the circumference of the circular plate.

[0018] Preferably, the bottom of the limit cylinder has an oil inlet, and the oil inlet is provided with an oil inlet pipe extending to the bottom of the oil pump body; the upper end of the oil inlet is provided with a lower stop ball, and the limit cover is provided on the lower stop ball; a limit tube is provided in the upper end of the upper part of the pressing rod, the inner hole of the limit tube is an inverted conical hole, and an upper stop ball is provided in the upper part of the inverted conical hole, and a limit part for limiting the upper stop ball is provided on the inner wall of the connecting channel.

[0019] Preferably, the limiting member is a limiting column, the lower end surface of the limiting column is arranged close to the upper flow-stop ball, and the lower end surface of the limiting column is a flat surface.

[0020] Preferably, the limiting column is an inverted conical boss.

[0021] Preferably, a circular contact plate is provided on the pressing surface.

[0022] The beneficial effects of the present invention are:

[0023] The clutch system exhaust auxiliary tooling of the present invention is used by connecting the oil pipe to the oil drain port of the clutch booster, and then stepping on the foot pedal. The foot pedal drives the pressing surface on the pressing arm to press down the pressing plate and the pressing rod, so that the brake fluid in the inner cavity of the oil pump body can be pumped into the oil pipe. When the foot pedal is released, the brake fluid in the inner cavity of the oil pump body stops flowing into the oil pipe. By continuously stepping on and releasing the foot pedal, the brake fluid in the oil pump body can continuously flow into the clutch pipeline until the exhaust operation of the clutch system is completed. It can be seen that in the above-mentioned exhaust process, the drain bolt only needs to be disassembled and installed once, which makes the brake fluid of the clutch booster flow out only during this disassembly and assembly process, thereby reducing the waste of brake fluid; at the same time, the operator can step on the foot pedal while standing outside the cab, without having to sit in the limited space of the cab to step on the clutch pedal, and the length of the lower pressure arm connected to the foot pedal can be designed to be longer, while the pedal arm of the clutch pedal in the cab is limited in length due to space constraints, which makes the exhaust process more time-saving and labor-saving; and the volume of the oil pump body can be designed to be larger, which can well meet the needs of one-time exhaust operation of the clutch system, without having to stop to refill it with brake fluid during the exhaust operation, thereby effectively saving the time of the exhaust operation and improving the efficiency of the exhaust operation; and only one person is needed to complete the exhaust operation, which saves manpower. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the embodiments, and further describe the specific embodiments of the present invention in detail with reference to the drawings.

[0025] Figure 1 A schematic diagram of the existing clutch system during exhaust operation;

[0026] Figure 2 A schematic diagram of an existing modified syringe;

[0027] Figure 3 This is a schematic diagram of an existing modified syringe used for clutch system exhaust operation;

[0028] Figure 4 A schematic diagram of a clutch system exhaust auxiliary tooling provided in an embodiment of the present invention;

[0029] Figure 5 A schematic diagram of the internal structure of an oil pump body provided in an embodiment of the present invention;

[0030] Figure 6 A schematic diagram of the connection between the pressing plate and the upper end of the pressing rod provided in an embodiment of the present invention;

[0031] Figure 7 A schematic diagram of a position limiting cover provided in an embodiment of the present invention;

[0032] Figure 8 A schematic diagram of a position limiting cover provided in an embodiment of the present invention when it is disposed on a lower flow-stopping ball;

[0033] Figure 9 A schematic diagram of a pressing rod provided by an embodiment of the present invention being pressed downward;

[0034] Figure 10 for Figure 9 Enlarged view of point A in the middle;

[0035] Figure 11 A schematic diagram of the pressing rod provided in an embodiment of the present invention when returning to its original position;

[0036] Figure 12 A schematic diagram of the position of the lower check ball during the return process of the pressing rod provided in an embodiment of the present invention;

[0037] Markings in the accompanying drawings:

[0038] 11. Oil reservoir, 12. Clutch master cylinder, 13. Clutch pedal, 14. Clutch pipeline,

[0039] 15. Clutch booster, 16. Oil drain bolt, 17. Oil pan, 18. Syringe,

[0040] 181, needle tube, 19, oil tube;

[0041] 21. Bottom plate, 22. Column; 31. Right section, 32. Left section, 33. Foot pedal,

[0042] 34. Pin, 35. Contact plate, 36. U-shaped opening; 41. Fixed arm,

[0043] 42. First elastic member; 51. Oil pipe; 61. Pressing plate; 62. Pressing rod; 63. Liquid outlet pipe; 64. Lower portion of pressing rod; 65. Step plate; 66. Upper stop ball; 67. Limiting column;

[0044] 671, flat surface, 68, limit tube, 681, inverted tapered hole;

[0045] 71. Oil pump body, 72. Sealing cover, 73. Limiting cylinder, 74. Second elastic member,

[0046] 75, lower check ball, 76, oil inlet; 81, limit cover, 82, round plate, 83, connecting rod,

[0047] 84. Ring; 91. Oil inlet pipe. DETAILED DESCRIPTION

[0048] In order to enable those skilled in the art to better understand the technical solution of the present invention, the solution will be further described in detail below in conjunction with specific embodiments.

[0049] like Figures 4 to 12 As shown, an embodiment of the present invention provides a clutch system exhaust auxiliary tooling, which includes a base plate 21, a column 22, an oil pump body 71, a foot pedal 33, a lower pressure arm and a fixed arm 41, and the column and the oil pump body are both vertically arranged on the base plate 21; a pressing rod 62 is floatingly provided on the top of the oil pump body, and a pressing plate 61 vertically connected thereto is provided at the upper end of the pressing rod, and a liquid outlet pipe 63 for connecting to the oil pipe 51 is provided on one side of the pressing plate, and the pressing rod is a hollow structure, and the liquid outlet pipe is connected to the inner cavity of the oil pump body through the connecting channel in the pressing plate and the hollow cavity of the pressing rod; the right end of the right section 31 of the lower pressure arm is rotatably connected to the upper end of the column, and the right section has a pressing surface for contacting the top surface of the pressing plate; the The left section 32 of the lower pressure arm is tilted downward, the foot pedal is horizontally arranged and connected to the left end of the left section of the lower pressure arm, and the foot pedal 33 and the column are symmetrically arranged on the left and right sides of the oil pump body; the lower end of the fixed arm 41 is connected to the upper end of the column, and the upper end of the fixed arm 41 is bent to the left and is located directly above the right section 31. A first elastic member 42 is provided between the upper end of the fixed arm and the left end of the right section to keep the pressing surface and the top surface of the pressing plate at a certain distance in the vertical direction; when in use, by stepping on the foot pedal, the foot pedal drives the pressing surface on the lower pressure arm to press down the pressing plate and the pressing rod, so that the brake fluid in the inner cavity of the oil pump body can be drawn into the oil pipe, and when the foot pedal is released, the brake fluid in the inner cavity of the oil pump body stops flowing into the oil pipe.

[0050] The clutch system exhaust auxiliary tooling provided in an embodiment of the present invention is used by connecting the oil pipe to the oil drain port of the clutch booster, and then stepping on the foot pedal 33. The foot pedal drives the pressing surface on the pressing arm to press down the pressing plate and the pressing rod, so that the brake fluid in the inner cavity of the oil pump body 71 can be pumped into the oil pipe 51. When the foot pedal is released, the brake fluid in the inner cavity of the oil pump body stops flowing into the oil pipe. By continuously stepping on and releasing the foot pedal, the brake fluid in the oil pump body can continuously flow into the clutch pipeline until the exhaust operation of the clutch system is completed.

[0051] It can be seen that in the above-mentioned exhaust process, the drain bolt only needs to be disassembled and assembled once, which makes the brake fluid of the clutch booster flow out only during this disassembly and assembly process, thereby reducing the waste of brake fluid; at the same time, the operator can step on the foot pedal while standing outside the cab, without having to sit in the limited space of the cab to step on the clutch pedal, and the length of the lower pressure arm connected to the foot pedal can be designed to be longer, and the lever ratio when applying force is large, while the pedal arm of the clutch pedal in the cab is limited by space and its length is limited, which makes the exhaust process more time-saving and labor-saving, and much more labor-saving than pushing the needle by hand in the prior art; and the volume of the oil pump body 71 can be designed to be larger, which can well meet the needs of one-time exhaust operation of the clutch system, without having to stop to refill it with brake fluid during the exhaust operation, thereby effectively saving the time of the exhaust operation and improving the efficiency of the exhaust operation; and only one person is needed to complete the exhaust operation, which saves manpower.

[0052] Furthermore, the oil pump body includes a sealing cover 72. A mounting hole is provided at the top of the oil pump body, and a vertically downwardly extending stopper 73 is provided in the mounting hole. The sealing cover is used to seal the upper end of the stopper. The diameter of the lower portion 64 of the pressing rod is larger than the diameter of the upper portion of the pressing rod. The upper side of the step plate 65 at the connection between the upper and lower portions of the pressing rod is used to abut against the inner wall of the sealing cover. The sealing cover is provided with a through hole for the upper portion of the pressing rod to pass through, and the through hole is slidably engaged with the upper portion of the pressing rod. The outer circumferential surface of the lower portion of the pressing rod is slidably engaged with the inner circumferential surface of the stopper. A second elastic member 74 is provided between the bottom of the stopper and the lower side of the step plate. With this solution, the second elastic member enables the pressing rod to return to its initial position after being pressed, thereby conveniently achieving a floating arrangement of the pressing rod on the oil pump body. It can be understood that when the foot pedal is released and the pressing rod returns to its initial position, the lower pressing arm also returns under the action of the restoring force of the first elastic member, so that a certain distance is maintained between the pressing surface and the top surface of the pressing plate; the outer circumferential surface of the lower part of the pressing rod slides and fits with the inner circumferential surface of the limiting cylinder, and the through hole slides and fits with the upper part of the pressing rod and the two fit together, so that a better sealing effect can be achieved to avoid brake fluid leakage.

[0053] Preferably, the second elastic member 74 is a spring. The first elastic member can also be a spring.

[0054] Furthermore, a limiting cover for the second elastic member to be sleeved is provided in the bottom of the limiting cylinder, so that the spring can be better positioned by utilizing the limiting cover 81 .

[0055] Preferably, the limiting cover 81 is a conical structure, so as to facilitate the spring to be sleeved on the limiting cover 81 .

[0056] like Figure 7 As shown, the limiting cover 81 comprises a circular plate 82 and a circular ring 84 parallel to the plate. The circular plate and the ring are coaxially arranged and positioned above the ring. The circular plate and the ring are connected by a plurality of inclined connecting rods 83, each of which is evenly distributed around the circumference of the circular plate. This solution simplifies the structure of the limiting cover. Furthermore, after the spring is mounted on the limiting cover, the connecting rods can effectively limit the spring. It is understood that the diameter of the circular plate is smaller than the inner diameter of the ring.

[0057] Furthermore, the bottom of the limiting cylinder 73 has an oil inlet 76, and the oil inlet is provided with an oil inlet pipe 91 for extending to the bottom of the oil pump body; the upper end of the oil inlet is provided with a lower stop ball 75, and the limiting cover is provided on the lower stop ball; the upper end of the upper part of the pressing rod is provided with a limiting tube 68, the inner hole of the limiting tube is an inverted conical hole 681, and the upper part of the inverted conical hole is provided with an upper stop ball 66, and the inner wall of the connecting channel is provided with a limiting member for limiting the upper stop ball. With this solution, the limiting cover can be used to better prevent the lower stop ball from moving around, and the limiting member can be used to prevent the upper stop ball from moving up too much or moving around. It can be understood that when the pressing rod is not pressed down, under the action of gravity, the upper stop ball blocks the inverted conical hole of the column, and the lower stop ball blocks the oil inlet, that is, both are in their respective initial positions, such as Figure 2 As shown, a better sealing effect can be achieved at this time.

[0058] The working principle of extracting brake fluid from the oil pump body is:

[0059] When the foot pedal 33 is stepped on, the pressing arm is used to press the pressing rod downward through the pressing plate. The brake fluid in the limit cylinder 73 is compressed (for the first time use, there is gas in the limit cylinder when pressing). The pressure increases, and the lower check ball is pressed to block the oil inlet. At this time, no brake fluid enters the limit cylinder through the oil inlet. At the same time, due to the increase in pressure, the upper check ball 66 is pushed upward. Figure 9 and Figure 10 As shown, when the inverted tapered hole 681 is opened, the brake fluid in the limit cylinder (when used for the first time, the limit cylinder contains gas when pressed) will flow through the inverted tapered hole and the connecting channel into the liquid outlet pipe, and then into the oil pipe, thereby achieving the pumping out of the brake fluid in the oil pump body;

[0060] When the foot pedal is released, the pressing rod returns to its original position under the restoring force of the second elastic member 74. At this time, the step plate is away from the bottom of the limiting cylinder, so that the space in the inner cavity of the limiting cylinder becomes larger, forming a low-pressure area, so that the lower flow-stopping ball 75 is sucked and moves upward. Figure 11 and Figure 12 As shown, the oil inlet 76 is opened, and the brake fluid in the inner cavity of the oil pump body enters the limiting cylinder through the oil inlet. At the same time, the upper stop ball is sucked downward due to the low pressure generated by the limiting cylinder and blocks the inverted tapered hole. As the limiting cylinder returns to its original position, only the brake fluid in the oil pump body can enter the limiting cylinder, and external air or liquid is prevented from entering the limiting cylinder through the inverted tapered hole. When the pressing rod returns to its initial position, the pressure in the limiting cylinder is the same as the pressure in the oil pump body, and the lower stop ball returns to its initial position under the action of gravity to continue to block the oil inlet.

[0061] By repeatedly pressing and releasing the foot pedal 33, the brake fluid can be continuously flowed from the oil pump body to the oil pipe.

[0062] Specifically, the stopper is a stopper post 67, the lower end of which is positioned adjacent to the upper check ball. The lower end of the stopper post is a flat surface 671, simplifying the stopper's structure while effectively retaining the upper check ball. It will be appreciated that the distance between the flat surface and the upper check ball can be adjusted to a desired value to ensure proper operation.

[0063] Preferably, the limiting column 67 is an inverted conical boss, so as to facilitate the flow of brake fluid and reduce resistance.

[0064] Specifically, a circular contact plate 35 is provided on the pressing surface, thereby effectively increasing the contact area with the top surface of the pressing plate 61. It can be understood that at this time, under the action of the restoring force of the first elastic member 42, when the lower pressing arm is in the initial position, a certain distance is maintained between the bottom surface of the contact plate and the top surface of the pressing plate in the vertical direction, such as Figure 1 The first elastic member 42 can preferably be a spring; the bending angle between the left section 32 and the right section 31 of the lower pressure arm cannot be too small, and the left section 32 must not contact the oil pump body when the pressing rod is fully pressed down to ensure that the auxiliary tooling works properly.

[0065] Preferably, a U-shaped opening 36 is provided at the upper end of the column 22, and the right end of the right section 31 of the lower pressure arm is rotatably connected to the two side walls of the U-shaped opening through a pin shaft 34, thereby conveniently realizing the rotational connection between the lower pressure arm and the column.

[0066] The specific process of using the present invention for exhaust work is: place an oil receiving basin directly below the oil drain port, remove the oil drain bolt in the oil drain port, connect the oil pipe 51 to the oil drain port, and the operator steps on the foot pedal 33 with his foot to make the lower pressure arm rotate downward around the pin shaft 34, and the contact plate is driven by the lower pressure arm to contact the pressing plate, and press the pressing plate and the pressing rod 62 to move downward together. At this time, the brake fluid in the oil pump body will be drawn into the oil pipe 51, and then enter the clutch booster and clutch pipeline. Repeatedly stepping on and releasing the foot pedal can make the brake fluid in the oil pump body 71 continuously flow into the oil pipe until the exhaust operation of the clutch system is completed, and then the oil pipe is pulled out and the oil drain bolt is installed in the oil drain port.

[0067] The above are only preferred embodiments of the present invention. It should be pointed out that these embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention. Moreover, after reading the contents of the present invention, relevant technical personnel in this field can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the claims attached to this application.

Claims

1. A clutch system exhaust auxiliary tooling, characterized in that: The jackup jack has its upper end fixed with the top end of the oil pump, and its lower end is provided with an oil pump, and its lower end is provided with an oil pumping stop, and its lower end is provided with an oil pumping stop. The left end of the left section of the left pedal is connected, and the foot pedal and the column are symmetrically arranged on the left and right sides of the oil pump body; the lower end of the fixed arm is connected to the upper end of the column, and the upper end of the fixed arm is bent to the left and is located just above the right section, and a first elastic member is provided between the upper end of the fixed arm and the left end of the right section for keeping the pressing surface and the top surface of the pressing plate at a certain distance in the vertical direction; when in use, by stepping on the foot pedal, the foot pedal drives the pressing surface on the lower pressing arm to press downward on the pressing plate and the pressing rod, so as to draw the brake fluid in the inner cavity of the oil pump body into the oil pipe, and when the foot pedal is released, the brake fluid in the inner cavity of the oil pump body stops flowing into the oil pipe; The cam is provided with a camming hole at the top of the oil pump body, and a limiting cylinder extending vertically downward is provided in the limiting cylinder, and the sealing cover is used to seal the upper end of the limiting cylinder; the diameter of the lower portion of the pressing rod is larger than the diameter of the upper portion of the pressing rod, and the upper side surface of the step plate at the connection between the upper portion and the lower portion of the pressing rod is used to block and engage with the inner wall of the sealing cover, and the sealing cover is provided with a through hole for the upper portion of the pressing rod to pass through, and the through hole is slidably engaged with the upper portion of the pressing rod; the outer circumferential surface of the lower portion of the pressing rod is slidably engaged with the inner circumferential surface of the limiting cylinder, and a second elastic member is provided between the bottom of the limiting cylinder and the lower side surface of the step plate; A limiting cover for the second elastic member to be sleeved is provided in the bottom of the limiting cylinder; The bottom of the limit cylinder has an oil inlet, and the oil inlet is provided with an oil inlet pipe for extending to the bottom of the oil pump body; the upper end of the oil inlet is provided with a lower stop ball, and the limit cover is provided on the lower stop ball; a limit tube is provided in the upper end of the upper part of the pressing rod, the inner hole of the limit tube is an inverted conical hole, and an upper stop ball is provided in the upper part of the inverted conical hole, and a limit part for limiting the upper stop ball is provided on the inner wall of the connecting channel.

2. The clutch system exhaust auxiliary tooling according to claim 1, characterized in that: The second elastic member is a spring.

3. The clutch system exhaust auxiliary tooling according to claim 1, characterized in that: The limiting cover is a conical structure.

4. The clutch system exhaust auxiliary tooling according to claim 3, characterized in that: The limiting cover includes a circular plate and a circular ring parallel to the circular plate. The circular plate and the circular ring are coaxially arranged and the circular plate is located above the circular ring. The circular plate and the circular ring are connected by a plurality of inclined connecting rods, and each of the connecting rods is evenly distributed on the circumference of the circular plate.

5. The clutch system exhaust auxiliary tooling according to claim 1, characterized in that: The limiting component is a limiting column, the lower end surface of the limiting column is arranged close to the upper flow-stop ball, and the lower end surface of the limiting column is a flat surface.

6. The clutch system exhaust auxiliary tooling according to claim 5, characterized in that: The limiting column is an inverted conical boss.

7. The clutch system exhaust auxiliary tooling according to any one of claims 1 to 6, characterized in that: A circular contact plate is provided on the pressing surface.

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