Dual leakage-proof hydraulic valve with automatic detection function

Abstract

The utility model discloses a dual leakproof hydraulic valve with an automatic detection function, which comprises a valve body, an end cover is arranged above the valve body, a screw rod is arranged at the center of the end cover, a rotary handle is arranged at one end of the screw rod, a connecting plate is arranged on the outer wall of the screw rod, and a hydraulic cylinder is arranged on the outer wall of the connecting plate. A spring is arranged below the connecting plate, a partition plate is arranged below the spring, a main sealing ring is arranged below the partition plate, a valve element is arranged below the main sealing ring, auxiliary sealing rings are arranged on the two sides of the valve element, and a pressure sensor is arranged on one side of the main sealing ring. A sealing mechanism is arranged on one side of the pressure sensor, connecting pipes are arranged on the two sides of the valve body, through a double-sealing structure and an automatic detection mechanism, the sealing performance and the system reliability of the hydraulic valve are remarkably improved, the leakage possibility is reduced, meanwhile, the maintenance cost is reduced, and the downtime is shortened. And the economical efficiency and the operation efficiency of the equipment are improved.

Description

Technical Field

[0001] The utility model relates to the field of hydraulic valves, and more specifically, to a double anti-leakage hydraulic valve with an automatic detection function. Background Art

[0002] In modern industry, hydraulic systems are widely used in various machines and equipment. As a key component for controlling fluid flow, the performance of hydraulic valves directly affects the reliability and safety of the entire system.

[0003] After searching, the existing patent (publication number: CN215214807U) discloses a detachable hydraulic oil anti-leakage hydraulic valve, including a valve body, a control valve assembly is provided on the top of the valve body, connecting flanges are provided on both sides of the valve body, grooves are provided on the outside of the top of the valve body and the outside of the bottom of the control valve assembly, and clamps are provided on the outsides of the two groups of grooves. A flow control assembly is provided on one side of the inside of the valve body; through the mutual cooperation between the sealing cover, threaded rod, L-shaped limit groove, connecting plate A, limit block, connecting plate B, spring A, partition, connecting rod and valve block, the disassembly and control functions of the device are realized, so that maintenance personnel can quickly disassemble and assemble, reduce the use of tools, and improve the practicality of the device, and through the mutual cooperation between the hollow partition, spring B, metal ball and hollow limit plate, the flow direction of the liquid is controlled, backflow is prevented, and the safety of the device is improved. In the process of realizing the utility model, the inventor found that the existing technology has the following problems:

[0004] Existing hydraulic valves use a single-layer sealing structure. This design is prone to wear and aging during long-term operation, resulting in a decrease in sealing performance and leakage. At the same time, most traditional hydraulic valves do not have a built-in detection system to monitor the valve's operating status in real time. This means that if a leak or other fault occurs, the operator may not be able to detect and repair it in time, increasing safety risks.

[0005] Therefore, in order to solve the above problems, a double anti-leakage hydraulic valve with automatic detection function is proposed. Utility Model Content

[0006] In order to overcome the above-mentioned defects of the prior art, the utility model provides a double anti-leakage hydraulic valve with an automatic detection function to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: a double anti-leakage hydraulic valve with an automatic detection function, comprising a valve body, an end cover is provided above the valve body, a spiral rod is provided at the center of the end cover, a rotating handle is provided at one end of the spiral rod, a connecting plate is provided on the outer wall of the spiral rod, a spring is provided below the connecting plate, a partition is provided below the spring, a main sealing ring is provided below the partition, a valve core is provided below the main sealing ring, auxiliary sealing rings are provided on both sides of the valve core, a pressure sensor is provided on one side of the main sealing ring, a sealing mechanism is provided on one side of the pressure sensor, and connecting pipes are provided on both sides of the valve body.

[0008] Preferably, the bottom of the valve core is arc-shaped, and a valve seat is provided below the valve core. The valve seat is consistent in shape with the bottom of the valve core, and the top of the valve core is connected to the spiral rod. The valve core can be moved up and down by rotating the spiral rod, thereby combining the valve core and the valve seat.

[0009] Preferably, the main sealing ring is located at the top of the valve core and is close to the valve seat, and the auxiliary sealing ring is close to the inlets and outlets on both sides of the valve body.

[0010] Preferably, the sealing mechanism includes a power supply, a driving motor, a rotating rod, a driving gear, a telescopic rod and a sealing plate, a driving motor is arranged below the power supply, a rotating rod is arranged on one side of the driving motor, a driving gear is arranged on the outer wall of the rotating rod, a telescopic rod is arranged on one side of the driving gear, and a sealing plate is arranged at one end of the telescopic rod.

[0011] Preferably, the sealing plate is arranged along the vertical direction of the valve body, and the pressure sensor monitors the pressure change near the main sealing ring, so that the driving motor drives the sealing plate to move up and down.

[0012] Preferably, a groove is provided on the contact surface between the valve body and the sealing mechanism, the cross section of the groove is consistent with the cross section of the sealing plate, and the sealing plate is driven into the groove by the driving motor to seal the inlet and outlet on one side of the valve body.

[0013] The technical effects and advantages of this utility model are:

[0014] 1. Compared with the existing technology, this dual anti-leakage hydraulic valve with automatic detection function significantly improves the sealing performance of the hydraulic valve and reduces the possibility of leakage through the coordinated work of the main sealing ring and the auxiliary sealing ring. Under normal working conditions, the main sealing ring undertakes the main sealing task, while the auxiliary sealing ring is on standby. Once the performance of the main sealing ring deteriorates due to long-term use, the auxiliary sealing ring immediately takes effect to fill the potential leakage path.

[0015] 2. Compared with the existing technology, this dual anti-leakage hydraulic valve with automatic detection function monitors the working status and sealing performance of the valve in real time through a built-in pressure sensor. Once an abnormality is detected, the system will quickly close the valve through the sealing mechanism to cut off the fluid flow, thereby reducing losses and improving the reliability of the valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0017] Figure 2 It is a schematic diagram of the overall outer three-dimensional structure of the utility model.

[0018] Figure 3 This is a schematic diagram of the sealing mechanism and the local structure of the valve body of the utility model.

[0019] Figure 4 It is a partial three-dimensional structural diagram of the valve body and sealing mechanism of the utility model.

[0020] The accompanying drawings are marked as follows: 1. valve body; 2. end cover; 3. screw rod; 4. rotating handle; 5. connecting plate; 6. spring; 7. partition; 8. main sealing ring; 9. valve core; 10. auxiliary sealing ring; 11. pressure sensor; 12. sealing mechanism; 13. connecting pipe; 14. valve seat; 15. power supply; 16. driving motor; 17. rotating rod; 18. driving gear; 19. telescopic rod; 20. sealing plate; 21. slot. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] Example 1

[0023] As attached Figures 1 to 4The double anti-leakage hydraulic valve with automatic detection function shown in the figure includes a valve body 1. The valve body 1 is made of high-hardness metal material and plays a role in supporting normal internal use. An end cover 2 is arranged above the valve body 1. The end cover 2 plays a role in closing the upper part of the valve body 1 to protect the internal components from the influence of the external environment. It also provides support and fixation for internal components such as the screw rod 3. A screw rod 3 is arranged at the center of the end cover 2, and a rotating handle 4 is arranged at one end of the screw rod 3. The screw rod 3 connects the rotating handle 4 and the valve core 9, and is the key part connecting the operation interface with the actual control component. The user drives the screw rod 3 to rotate by rotating the rotating handle 4, thereby converting the rotational action into the up and down linear motion of the screw rod 3. This conversion mechanism allows the user to accurately control the opening and closing state of the valve core 9 to achieve fluid regulation and control.

[0024] A connecting plate 5 is provided on the outer wall of the screw rod 3. The connecting plate 5 is usually used to fix and support other components around the screw rod 3 to ensure that these components maintain the correct position and direction during the operation of the screw rod 3. It provides the necessary physical interface for the spring 6, etc. to ensure the effective transmission of mechanical force and maintain the stability of the internal structure. A spring 6 is provided below the connecting plate 5. The main function of the spring 6 is to provide elastic force to help buffer and absorb the impact force generated by changes in fluid pressure or during operation. At the same time, the spring 6 can also help push the valve core 9 back to the initial position in the non-working state to ensure the closed state of the valve, thereby playing a safety protection role. A partition 7 is provided below the spring 6. The partition 7 is mainly used to separate and protect internal sensitive components, such as the main sealing ring 8 and the pressure sensor 11, etc., to prevent these components from being directly exposed to harsh working environments.

[0025] A main seal ring 8 is provided below the partition 7. The main seal ring 8 is made of polytetrafluoroethylene (PTFE) material. The main seal ring 8 is responsible for preventing fluid leakage from the inside of the valve body 1. It is installed around the valve core 9, directly bearing and blocking the fluid pressure. It is the first line of defense, which ensures that the valve can effectively prevent fluid leakage when it is closed, ensuring the safety and efficiency of the system. A valve core 9 is provided below the main seal ring 8. The valve core 9 is the core moving component of the hydraulic valve. By precisely controlling the position of the valve core 9, fine adjustment of the fluid flow can be achieved. Auxiliary seal rings 10 are provided on both sides of the valve core 9. The auxiliary seal ring 10 is made of nitrile rubber (NBR) material. As a second safety measure, the auxiliary seal ring 10 is usually located downstream of the main seal ring 8. It is used to provide additional protection when the main seal ring 8 fails or leaks, thereby further reducing the risk of leakage. The setting of the auxiliary seal ring 10 increases the redundancy and safety of the system. Even if the main seal ring 8 fails due to wear, aging or damage, the auxiliary seal ring 10 can still maintain the sealing and prevent accidental leakage.

[0026] A pressure sensor 11 is provided on one side of the main sealing ring 8. The model of the pressure sensor 11 is a diffused silicon pressure sensor. It adopts diffused silicon technology and has excellent temperature performance and long-term stability. It is suitable for harsh environments and high-precision measurements. The pressure sensor 11 is used to monitor the pressure changes near the valve core 9 in real time to ensure the normal operation of the system. A sealing mechanism 12 is provided on one side of the pressure sensor 11. The sealing mechanism 12 is set to respond quickly when leakage or pressure abnormality is detected, automatically close the valve, cut off the fluid flow, reduce losses and protect the key components of the system. Connecting pipes 13 are provided on both sides of the valve body 1. The connecting pipes 13 are responsible for connecting the hydraulic valve with other parts of the system to ensure that the fluid can be smoothly input and output from the valve.

[0027] Example 2

[0028] Based on Example 1, the solution in Example 1 is further detailed in combination with the following specific working methods. Figures 1 to 4 As shown, see the following description for details:

[0029] As a preferred embodiment, the bottom of the valve core 9 is arc-shaped, and a valve seat 14 is provided below the valve core 9. The valve seat 14 is consistent in shape with the bottom of the valve core 9. The top of the valve core 9 is connected to the spiral rod 3. The valve core 9 can be displaced up and down by the rotation of the spiral rod 3, so that the valve core 9 is combined with the valve seat 14. Furthermore, the bottom of the valve core 9 is arc-shaped, consistent with the shape of the valve seat 14. This design enables the valve core 9 to be tightly combined with the valve seat 14 in the closed state to form an effective seal. The arc-shaped design helps to disperse pressure and ensure uniform contact of the sealing surface. At the same time, the arc-shaped design helps to reduce wear between the valve core 9 and the valve seat 14 and extend the service life.

[0030] As a preferred embodiment, the main sealing ring 8 is located at the top of the valve core 9 and is close to the valve seat 14, and the auxiliary sealing ring 10 is close to the inlets and outlets on both sides of the valve body 1. Furthermore, the design of the main sealing ring 8 close to the valve seat 14 makes it possible for the main sealing ring 8 to be in a compressed state when the valve core 9 and the valve seat 14 are closed, forming a preliminary static seal. This positional relationship ensures that when the valve core 9 is closed, the fluid pressure acts on the opposite side of the main sealing ring 8, thereby enhancing the sealing effect. The auxiliary sealing ring 10 is arranged near the inlets and outlets on both sides of the valve body 1, mainly to provide secondary sealing protection in case the main sealing ring 8 fails.

[0031] As a preferred embodiment, the sealing mechanism 12 includes a power supply 15, a drive motor 16, a rotating rod 17, a drive gear 18, a telescopic rod 19 and a sealing plate 20. The drive motor 16 is provided below the power supply 15, and a rotating rod 17 is provided on one side of the drive motor 16. The outer wall of the rotating rod 17 is provided with a drive gear 18, and a telescopic rod 19 is provided on one side of the drive gear 18. A sealing plate 20 is provided at one end of the telescopic rod 19. Further, the power supply 15 provides the required electrical energy for the drive motor 16, and the drive motor 16 is the power source of the entire sealing mechanism 12. It is connected to the sealing plate 20. The electrical energy is converted into mechanical energy to drive the rotating rod 17 to rotate. The rotating rod 17 is connected to the driving motor 16 and the driving gear 18, and the rotational power of the driving motor 16 is transmitted to the driving gear 18. The driving gear 18 further transmits power and may amplify the torque through the gear ratio to meet actual needs. The telescopic rod 19 connects the driving gear 18 and the sealing plate 20, and converts the rotational motion into the linear motion of the sealing plate 20. The sealing plate 20 is the component that directly performs the sealing action. It can move up and down by the push of the telescopic rod 19, thereby realizing the opening or closing of the fluid channel.

[0032] As a preferred embodiment, the sealing plate 20 is arranged along the vertical direction of the valve body 1, and the pressure change near the main sealing ring 8 is monitored by the pressure sensor 11, so that the driving motor 16 drives the sealing plate 20 to move up and down. Furthermore, the pressure change is monitored in real time by the pressure sensor 11, and the device can promptly detect potential leaks or pressure anomalies, so as to respond quickly and reduce potential risks and losses. When a dangerous situation is detected, such as pressure exceeding a safe range or other faults indicating leakage, the automatic closing mechanism can quickly cut off the fluid flow and protect the system from more serious damage.

[0033] As a preferred embodiment, a groove 21 is provided on the contact surface between the valve body 1 and the sealing mechanism 12. The cross-section of the groove 21 is consistent with the cross-section of the sealing plate 20. The sealing plate 20 is driven into the groove 21 by the driving motor 16 to seal the inlet and outlet on one side of the valve body 1. Furthermore, the cross-section of the groove 21 is designed to be consistent with the cross-section of the sealing plate 20, ensuring that the sealing plate 20 can be accurately embedded in the groove 21 when moved to the closed position. This precise matching ensures good contact between the sealing surfaces and improves the sealing effect.

[0034] The working process of the utility model is as follows: first, a double sealing ring is arranged around the valve core 9 to ensure the sealing of the valve body 1, and the pressure sensor 11 continuously monitors the pressure near the main sealing ring 8. When the pressure sensor 11 detects an abnormal pressure change, it sends an instruction to the drive motor 16. After the drive motor 16 is started, the power is transmitted to the telescopic rod 19 through the rotating rod 17 and the drive gear 18. The telescopic rod 19 pushes the sealing plate 20 to move up and down in the vertical direction of the valve body 1. At this time, the sealing plate 20 moves to the inlet and outlet of the valve body 1, close to the valve seat 14 to form a seal, preventing the fluid from continuing to flow, and the sealing plate 20 enters the groove 21. Since its cross-section is consistent with the groove 21, the sealing is ensured and the leakage of the medium is prevented. The above is the working principle of this double anti-leakage hydraulic valve with automatic detection function.

Claims

1. A double anti-leakage hydraulic valve with automatic detection function, comprising a valve body (1), characterized in that: An end cover (2) is provided above the valve body (1), a spiral rod (3) is provided at the center of the end cover (2), a rotating handle (4) is provided at one end of the spiral rod (3), a connecting plate (5) is provided on the outer wall of the spiral rod (3), a spring (6) is provided below the connecting plate (5), a partition (7) is provided below the spring (6), a main sealing ring (8) is provided below the partition (7), a valve core (9) is provided below the main sealing ring (8), auxiliary sealing rings (10) are provided on both sides of the valve core (9), a pressure sensor (11) is provided on one side of the main sealing ring (8), a sealing mechanism (12) is provided on one side of the pressure sensor (11), and connecting pipes (13) are provided on both sides of the valve body (1).

2. The double anti-leakage hydraulic valve with automatic detection function according to claim 1, characterized in that: The bottom of the valve core (9) is arc-shaped, and a valve seat (14) is provided below the valve core (9). The valve seat (14) is consistent in shape with the bottom of the valve core (9). The top of the valve core (9) is connected to the spiral rod (3). The valve core (9) can be displaced up and down by the rotation of the spiral rod (3), so that the valve core (9) and the valve seat (14) are combined.

3. The double anti-leakage hydraulic valve with automatic detection function according to claim 2, characterized in that: The main sealing ring (8) is located at the top of the valve core (9) and is close to the valve seat (14), and the auxiliary sealing ring (10) is close to the inlets and outlets on both sides of the valve body (1).

4. The double anti-leakage hydraulic valve with automatic detection function according to claim 1, characterized in that: The sealing mechanism (12) comprises a power supply (15), a driving motor (16), a rotating rod (17), a driving gear (18), a telescopic rod (19) and a sealing plate (20). The driving motor (16) is arranged below the power supply (15), the rotating rod (17) is arranged on one side of the driving motor (16), the driving gear (18) is arranged on the outer wall of the rotating rod (17), the telescopic rod (19) is arranged on one side of the driving gear (18), and the sealing plate (20) is arranged at one end of the telescopic rod (19).

5. The double anti-leakage hydraulic valve with automatic detection function according to claim 4, characterized in that: The sealing plate (20) is arranged along the vertical direction of the valve body (1), and the pressure sensor (11) monitors the pressure change near the main sealing ring (8), so that the driving motor (16) drives the sealing plate (20) to move up and down.

6. The double anti-leakage hydraulic valve with automatic detection function according to claim 4, characterized in that: A groove (21) is provided on the contact surface between the valve body (1) and the sealing mechanism (12); the cross section of the groove (21) is consistent with the cross section of the sealing plate (20); the sealing plate (20) is driven by the driving motor (16) into the groove (21) to seal the inlet and outlet on one side of the valve body (1).

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