Hydraulic clutch pump structure

Abstract

The utility model discloses a hydraulic clutch pump structure which is characterized in that a clutch pump is fixed on a clutch pump cover through a mounting bolt, the clutch pump is connected with a transmission rod and a hydraulic oil pipe, the transmission rod is fixed in the clutch pump and is connected with a piston, a concave plane is arranged at the front end of the piston, piston bulges are arranged on two sides of the concave plane, and the piston is connected with a fixed spring. The packing cups are embedded into the two sides of the piston, an annular groove is formed in the middle of the piston, the O-shaped ring is embedded into the annular groove, a gap is reserved between the packing cups and the O-shaped ring, the clutch pump and the clutch pump cover form an L shape, one side of the hydraulic oil pipe is connected with the clutch pump, and the other side of the hydraulic oil pipe is connected with the deflation nozzle through an air pipe bolt. The double-sealing structure is adopted, leakage is prevented, the piston is of the concave structure, and the working efficiency is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of clutch pumps, in particular to a hydraulic clutch pump structure. Background Art

[0002] The clutch pump is a complex and important field. Most motorcycles use a left-handle cable-controlled clutch. This cable-controlled clutch structure is relatively simple and low-cost, but because it directly transmits power through a steel wire, it has no force amplification effect and the hand-operated feel is heavy. In addition, the cable-controlled clutch also has problems such as the clutch cable suddenly breaking.

[0003] In the prior art, patent number CN110576739A discloses a clutch pump with a center valve structure for light trucks, including a cylinder body, a piston, a valve stem, a sealing ring, a stop pin, a stop pin retaining ring, a stop pin spring, a small spring, an elastic retaining ring for a hole, a gasket, and a center valve in conjunction with a movable limit stop pin. By adding one or more gaskets, the gap between the center valve sealing ring and the piston sealing surface is adjusted to ensure the smoothness of the hydraulic oil round-trip channel, and to ensure the time for quickly closing the channel to establish hydraulic pressure, thereby improving the performance of the clutch pump and ensuring the working stability of the clutch pump. Utility Model Content

[0004] The purpose of the utility model is to provide a hydraulic clutch pump structure which is leak-proof and has good performance.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a hydraulic clutch pump structure, comprising a clutch pump fixed on a clutch pump cover by mounting bolts; the clutch pump is connected to a transmission rod and a hydraulic oil pipe; the transmission rod is fixed in the clutch pump and connected to a piston; and a concave plane is provided at the front end of the piston.

[0006] Preferably, piston protrusions are provided on both sides of the concave plane.

[0007] Preferably, the piston is connected to a fixed spring; and leather cups are embedded on both sides of the piston.

[0008] Preferably, one side of the leather cup is in close contact with the piston, and the other side is in close contact with the inner wall of the clutch pump.

[0009] Preferably, an annular groove is provided in the middle of the piston to embed the O-ring; and a gap is left between the leather cup and the O-ring.

[0010] Preferably, the clutch pump and the clutch pump cover are L-shaped.

[0011] Preferably, one side of the hydraulic oil pipe is connected to the clutch pump, and a sealing gasket is provided at the connection.

[0012] Preferably, the other side of the hydraulic oil pipe is connected to a bleed nozzle via an air pipe bolt; the end of the bleed nozzle is connected to a dust cover.

[0013] Preferably, a sealing gasket is provided on the side of the bleed nozzle connected to the hydraulic oil pipe.

[0014] Compared with the prior art, the beneficial effects of the present invention are: the present invention is easy to operate, the hydraulic clutch works through the hydraulic transmission device, and is subject to less frictional resistance. The hydraulic system can amplify the force, making the operation easier; the internal seal of the hydraulic brake clutch pump adopts a double sealing structure of a leather cup and an O-ring, which is not easy to cause hydraulic oil leakage when the hydraulic pressure is strong and the back and forth movement is frequent; the piston of the present invention adopts a concave structure, which has higher working efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the main structure of the utility model.

[0016] Figure 2 It is a top view of the utility model.

[0017] Figure 3 This is the cross-sectional view AA of the present invention.

[0018] In the figure: 1. Mounting bolts; 2. Clutch pump cover; 3. Sealing gasket; 4. Hydraulic oil pipe; 5. Dust cover; 6. Clutch pump; 7. Retaining spring; 8. Piston; 81. Concave surface; 82. Piston protrusion; 9. Leather cup; 10. O-ring; 11. Drive rod; 12. Oil seal; 13. Valve bolt; 14. Bleed nozzle. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0020] The following describes an embodiment of the present invention in detail. In the hydraulic clutch pump structure, the shape of the clutch pump (6) can be designed according to actual conditions to adapt to different installation spaces and design requirements. This design allows it to achieve efficient hydraulic energy conversion in a limited space. The clutch pump 6 is made of strong and durable materials, such as aluminum alloy or cast iron. These materials are not only strong, but also have good wear resistance and corrosion resistance, and can withstand high pressure and repeated operations. The clutch pump 6 is compactly designed to adapt to the limited space while maintaining sufficient internal volume to store hydraulic oil, ensuring that the hydraulic system has sufficient oil volume for operation. The clutch pump 6 may include one or more pistons and a valve for controlling the flow of hydraulic oil. The piston is responsible for converting the mechanical energy of the pedal into hydraulic energy, while the valve controls the flow direction and pressure of the hydraulic oil. The main function of the clutch pump 6 is to convert the mechanical energy of the pedal into hydraulic energy, compress the hydraulic oil through the reciprocating motion of the piston, and thus drive the separation and engagement of the clutch.

[0021] Mounting bolts 1 are used for tool tightening. They are made of high-strength steel to withstand the tensile and shear forces generated during the tightening process. Mounting bolts 1 pass through the preset holes in the clutch pump cover 2 and are secured with nuts or other fasteners (such as screws, washers, etc.) to ensure that the clutch pump 6 is stably installed on the clutch pump cover. During installation, first place the clutch pump 6 in the predetermined position on the clutch pump cover 2. Then, mount bolts 1 are passed through the holes in the clutch pump cover 2 and screwed into the corresponding holes in the clutch pump 6. Finally, the clutch pump 6 is secured by tightening the nuts or other fasteners.

[0022] Clutch pump cover 2 is designed with bolt holes to accommodate mounting bolts 1. Clutch pump cover 2 is made of metal, such as steel or aluminum alloy, to provide sufficient strength and rigidity. The primary function of clutch pump cover 2 is to protect the components within clutch pump 6 from dust, moisture, and other impurities, while also protecting the operator from injury from moving parts. Clutch pump cover 2 may be designed with ventilation holes or air vents to allow air flow and pressure equalization, thereby preventing excessive internal pressure from building up during operation.

[0023] The transmission rod 11 is an elongated component designed to withstand high pressure and repeated mechanical stress. In this embodiment, the transmission rod can be made of high-strength steel, a material with excellent strength and toughness, capable of withstanding the repeated loads generated during the transmission process. One end of the transmission rod 11 is fixed within the clutch pump 6 and connected to the piston 8. The other end extends outside the clutch pump 6 to transmit force to other parts of the clutch. The main function of the transmission rod 11 is to transmit force within the clutch pump 6 to the clutch system, achieving clutch disengagement and engagement. Through its connection with the piston 8, it converts the piston's reciprocating motion into linear motion of the clutch, ensuring the high performance and long-term stability of the hydraulic clutch pump structure.

[0024] Piston 8 is a key component within clutch pump 6, designed to move to control the flow of hydraulic oil. In the hydraulic system, the reciprocating motion of piston 8 compresses the hydraulic oil, thereby driving the clutch's engagement and disengagement. Piston 8 is typically made of high-strength aluminum alloy or engineering plastics, materials with excellent wear resistance and self-lubricating properties to reduce friction and increase durability.

[0025] The front end of piston 8 is designed with a concave surface 81, which is the key area connecting piston 8 to transmission rod 11. The design of concave surface 81 cleverly provides a stable contact surface for transmission rod 11, making the connection between the two more stable and reliable. In hydraulic systems, piston 8 is required to reciprocate under high pressure. The presence of concave surface 81 ensures that transmission rod 11 can stably transmit force to piston 8 even in such high-pressure environments, thereby ensuring the effective operation of the hydraulic system.

[0026] Piston protrusions 82, located on either side of concave surface 81, form another key component in the connection between piston 8 and transmission rod 11. These protrusions mate with specific areas of transmission rod 11 to form a highly efficient force transmission mechanism. The design of piston protrusions 82 not only provides additional support points but also helps reduce wear on transmission rod 11 as it moves along piston 8. This interaction ensures stable and precise movement of transmission rod 11 even under high pressure and repeated operation, thereby extending the service life of piston 8 and transmission rod 11 and improving the reliability of the entire hydraulic system.

[0027] Furthermore, the coordinated operation of piston protrusion 82 and concave surface 81 helps improve the efficiency and precision of piston 8's reciprocating motion. In a hydraulic system, every movement of piston 8 is a test of system performance. This design reduces friction and improves connection stability, ensuring that piston 8 responds smoothly and accurately to every operating instruction. Therefore, this design of piston 8 not only improves the structural stability of the connection but also functionally enhances the performance and efficiency of the entire hydraulic system.

[0028] Retainer spring 7 is connected to piston 8, typically located at its rear end. Retainer spring 7 provides a restoring force for piston 8, ensuring it quickly returns to its initial position after compressing the hydraulic fluid. This rapid return action helps improve the hydraulic system's responsiveness.

[0029] Leather cups 9 are embedded on either side of piston 8, one side resting against piston 8 and the other against the inner wall of clutch pump 6. This design forms a primary sealing line, preventing hydraulic oil from leaking from either side of piston 8 and ensuring that the hydraulic oil flows only along its intended path. Leather cups 9 are typically made of elastic materials such as wear-resistant rubber or polyurethane. These materials offer excellent elasticity and oil resistance, enabling them to maintain a stable seal even under high pressure.

[0030] The clutch pump 6 and clutch pump cover 2 are designed to be L-shaped. This L-shaped structure can provide greater space utilization efficiency, allowing the clutch pump 6 to be installed more compactly on the clutch pump cover 2, thereby saving space and facilitating the layout of other components. When the clutch pump 6 is operating, the fluid (such as hydraulic oil) will flow along the L-shaped path. This path design can reduce resistance to fluid flow and improve the operating efficiency of the pump.

[0031] In addition, the L-shaped structure also helps to enhance the stability of the components. Since the connection between the clutch pump 6 and the clutch pump cover 2 forms a sturdy support structure, this helps to reduce vibration and noise when the pump is working, and improves the stability and durability of the entire system. The L-shaped design also provides convenience. Since the connection between the clutch pump 6 and the clutch pump cover 2 is relatively open, it allows maintenance personnel to more easily access the internal components of the pump and perform necessary inspections and repairs. Finally, the L-shaped layout also helps to improve heat dissipation performance. Heat is generated during the operation of the clutch pump 6, and the L-shaped design facilitates air circulation, thereby helping to dissipate heat and maintain a suitable operating temperature for the pump.

[0032] An annular groove is provided in the middle of the piston 8, which is designed to embed the O-ring 10. This design enhances the sealing between the piston 8 and the inner wall of the clutch pump 6, forming a second sealing line of defense.

[0033] The O-ring 10 is embedded in the annular groove in the middle of the piston 8. A gap is left between the O-ring 10 and the leather cup 9. This design further improves the sealing performance between the piston 8 and the inner wall of the clutch pump 6, achieving double sealing.

[0034] The O-ring 10 can be made of oil-resistant rubber, polytetrafluoroethylene (PTFE) or other high-performance sealing materials to adapt to the chemical properties and working pressure of the hydraulic oil.

[0035] The gap design between the O-ring 10 and the leather cup 9 can reduce mutual interference between the seals and improve the overall sealing performance.

[0036] The advantage of this double seal structure is that it provides two independent sealing lines of defense. Even if one of the seals fails, the other can prevent the leakage of hydraulic oil, thereby improving the reliability and safety of the entire hydraulic system.

[0037] In order to ensure the long-term effectiveness of the double seal structure, it is necessary to regularly check the wear and sealing effect of the leather cup 9 and the O-ring 10. If aging, cracks or other damage are found, they should be replaced in time to avoid leakage of hydraulic oil.

[0038] The utility model makes the piston 8 in the hydraulic clutch pump structure have high efficiency and long-term stability. The reciprocating motion of the piston 8 not only controls the flow of hydraulic oil, but also ensures the sealing and response speed of the system through its design.

[0039] The hydraulic oil pipe 4 plays a crucial role in the hydraulic clutch pump structure. It is responsible for transporting hydraulic oil from the clutch pump 6 to the rest of the clutch, directly impacting the system's response speed and efficiency. The hydraulic oil pipe 4 is typically made of oil-, pressure-, and corrosion-resistant materials, such as rubber, nylon, or specialized polymers. These materials ensure the pipe's reliability and durability within the hydraulic system. The pipe wall is designed to have a certain thickness to withstand high pressure without deformation or rupture, ensuring the pipe's stability under high-pressure operating conditions.

[0040] One end of the hydraulic oil pipe 4 is connected to the clutch pump 6. This connection typically features a sealing gasket 3 to ensure a tight seal and prevent hydraulic oil leakage. The sealing gasket 3 is typically made of oil-resistant rubber, polytetrafluoroethylene (PTFE), or other high-performance sealing materials. It elastically deforms to fill the gap between components, achieving a good seal. The other end is connected to a bleed nipple 14 via an air pipe bolt. This design allows the hydraulic oil pipe 4 to be flexibly adapted to various installation positions and angles, while also facilitating the discharge of gas from the system.

[0041] A bleed nozzle 14 is connected to the other side of the hydraulic oil pipe 4 via a gas pipe bolt and is used to release gas from the system to ensure the normal operation of the hydraulic system. The end of the bleed nozzle 14 is connected to a dust cover 5, which is usually made of plastic or other lightweight materials to prevent dust and other impurities from entering the hydraulic system, keeping the system clean.

[0042] The air pipe bolt is used to fix the air bleed nozzle 14 on the hydraulic oil pipe 4, ensuring that the air bleed nozzle 14 is stably connected to the hydraulic oil pipe 4. This connection method not only ensures the sealing of the system, but also facilitates maintenance and replacement operations.

[0043] Sealing gasket 3 is located at the connection between hydraulic oil pipe 4 and clutch pump 6, as well as at the connection between bleed nozzle 14 and hydraulic oil pipe 4. Its primary function is to prevent hydraulic oil leakage. It fills the microscopic gaps at the connection, creating a seal that prevents hydraulic oil from leaking, thereby maintaining system pressure and performance. Sealing gasket 3 is typically made of oil-resistant rubber, polytetrafluoroethylene (PTFE), or other high-performance sealing materials to accommodate the hydraulic oil's chemical properties and operating pressure.

[0044] The bleed nipple 14 is connected to the other side of the hydraulic oil pipe 4 via an air pipe bolt and is used to release gas from the system. After the hydraulic system is initially refueled or repaired, air may be mixed into the system. The bleed nipple 14 can remove this air to ensure the normal operation of the hydraulic system. The bleed nipple 14 is usually easy to operate. You can manually loosen the bleed nipple to release the gas. After the gas in the system is completely discharged, tighten the bleed nipple again.

[0045] A dust cover 5 is mounted on the end of the bleed nozzle 14. Its primary function is to prevent dust and other impurities from entering the hydraulic system. By covering the bleed nozzle 14, it prevents external contaminants from entering the connection between the hydraulic oil pipe 4 and the bleed nozzle 14. The dust cover 5 is typically made of plastic or other lightweight materials that are both durable and easy to manufacture and replace.

[0046] The air pipe bolt secures the bleed nozzle 14 to the hydraulic oil pipe 4, ensuring a stable connection. Designed with the hydraulic system's operating pressure and operating environment in mind, the air pipe bolt typically features high mechanical strength and corrosion resistance. During installation, the bolt must be properly tightened to ensure a secure and airtight connection between the bleed nozzle 14 and the hydraulic oil pipe 4. The design and coordination of these components ensures efficient performance and long-term stability of the hydraulic oil pipe 4 within the hydraulic clutch pump structure. By ensuring smooth flow of hydraulic oil and a tight seal within the system, these components are crucial to maintaining the performance of the entire hydraulic system.

[0047] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A hydraulic clutch pump structure, characterized in that: The invention comprises a clutch pump (6) fixed on a clutch pump cover (2) via mounting bolts (1); the clutch pump (6) is connected to a transmission rod (11) and a hydraulic oil pipe (4); the transmission rod (11) is fixed in the clutch pump (6) and connected to a piston (8); and a concave plane (81) is provided at the front end of the piston (8).

2. A hydraulic clutch pump structure according to claim 1, characterized in that: Piston protrusions (82) are provided on both sides of the concave plane (81).

3. A hydraulic clutch pump structure according to claim 1 or 2, characterized in that: The piston (8) is connected to a fixed spring (7); leather cups (9) are embedded on both sides of the piston (8).

4. A hydraulic clutch pump structure according to claim 3, characterized in that: One side of the leather cup (9) is in close contact with the piston (8), and the other side is in close contact with the inner wall of the clutch pump (6).

5. The hydraulic clutch pump structure according to claim 4, characterized in that: An annular groove is provided in the middle of the piston (8) to embed the O-ring (10); a gap is left between the leather cup (9) and the O-ring (10).

6. The hydraulic clutch pump structure according to claim 1, characterized in that: The clutch pump (6) and the clutch pump cover (2) are in an L shape.

7. The hydraulic clutch pump structure according to claim 1, characterized in that: One side of the hydraulic oil pipe (4) is connected to the clutch pump (6), and a sealing gasket (3) is provided at the connection.

8. A hydraulic clutch pump structure according to claim 1 or 7, characterized in that: The other side of the hydraulic oil pipe (4) is connected to a bleed nozzle (14) via an air pipe bolt; the end of the bleed nozzle (14) is connected to a dust cover (5).

9. The hydraulic clutch pump structure according to claim 8, characterized in that: A sealing gasket (3) is provided on one side of the air release nozzle (14) connected to the hydraulic oil pipe (4).

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