Energy storage type hydraulic control check valve control system

Abstract

The invention relates to the technical field of check valves, and discloses an energy storage type hydraulic control check valve control system which is characterized in that a rotating shaft is sleeved with a rotating ring, the rotating ring is connected with an output shaft of an energy storage tank, two sliding grooves are formed in the inner side wall of the rotating ring, connecting strips are movably connected into the two sliding grooves, moving strips are fixedly mounted on the two connecting strips, and the moving strips are movably connected with the rotating shaft; when the valve needs to be opened, the air cylinder a is started to enable the output shaft of the air cylinder a to retract, the air cylinder a is started to drive the connecting strips to move backwards to be separated from the sliding grooves, and when the valve needs to be opened, the air cylinder a is started to enable the output shaft of the air cylinder a to retract. In this way, the pressure of the pressure spring drives the connecting strip to enter the sliding groove, the energy storage tank can drive the rotating shaft to rotate, the air cylinder a is started to enable the output shaft of the air cylinder a to stretch out after the valve is closed, and the situation that the energy storage tank is started to open the valve due to mistaken touch and the like when the valve is closed can be avoided.

Description

Technical Field

[0001] This invention relates to the technical field of controlled check valves, specifically to a accumulator-type hydraulic controlled check valve control system. Background Technology

[0002] In many technical fields such as industrial fluid transportation, hydraulic control systems, and water supply and drainage engineering, check valves, as key fluid control components, play a crucial role in preventing fluid backflow and ensuring stable system operation in a preset direction. This avoids safety hazards such as equipment damage, abnormal system pressure, and erratic operating conditions caused by reverse fluid flow. With the improvement of industrial automation, traditional manually controlled or pressure-driven check valves are no longer sufficient to meet the requirements of precise control, rapid response, and safety protection under complex operating conditions. Accumulated hydraulic check valves, with their stable driving force provided by their energy storage mechanism, exhibit significant advantages in opening and closing response speed and adaptability to operating conditions, and are gradually becoming the mainstream choice for medium and high pressure fluid systems.

[0003] However, existing accumulator-type hydraulic check valve control systems still have many technical shortcomings that urgently need to be addressed in practical applications: The safety of preventing accidental activation after valve closure is insufficient. In existing systems, the accumulator and valve drive mechanism (such as a rotary shaft) are often in a continuous linkage state. Even if the valve is closed, accidental opening of the valve due to operational errors, control system signal interference, or unexpected start-up of the accumulator can easily lead to safety accidents such as fluid backflow and system depressurization. This risk can cause serious economic losses and safety hazards, especially in scenarios with extremely high requirements for operational stability, such as petrochemical and high-pressure hydraulic systems.

[0004] Therefore, developing an energy storage hydraulic check valve control system with anti-accidental touch function has become a key technical requirement for improving the safety and stability of fluid system operation and reducing operation and maintenance costs, and is of great significance for promoting the technological upgrading of related fields. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides an energy storage hydraulic check valve control system. This system has the advantage of preventing the energy storage tank from starting and opening the valve due to accidental contact when the valve is closed. It solves the problem that accidental valve opening due to operational errors, control system signal interference, or unexpected start-up of the energy storage tank can easily lead to safety accidents such as fluid backflow and system depressurization. This is especially true in scenarios with extremely high requirements for operational stability, such as petrochemical and high-pressure hydraulic systems, where such risks can cause serious economic losses and safety hazards.

[0006] To achieve the aforementioned goal of preventing the accumulator tank from opening the valve due to accidental activation when the valve is closed, the present invention provides the following technical solution: an accumulator-type hydraulic check valve control system, comprising a main body, a base fixedly mounted on the main body, a connecting pipe fixedly mounted on the main body, a rotating shaft movably connected inside the connecting pipe, a connecting frame fixedly mounted on the rotating shaft, a baffle fixedly mounted on the connecting frame, a fixing frame fixedly mounted on the connecting pipe, an accumulator tank mounted on the fixing frame, and a rotating ring sleeved on the rotating shaft, the rotating ring being connected to the output shaft of the accumulator tank. Two sliding grooves are formed on the inner side wall of the rotating ring, and connecting bars are movably connected in both grooves. Moving bars are fixedly installed on the two connecting bars. Two horizontal grooves are formed on the rotating shaft, and the two connecting bars are movably connected to the two horizontal grooves respectively. A long groove is formed on the front of the rotating shaft, and the long groove communicates with the two horizontal grooves. The moving bars are movably connected to the long groove. Two pressure springs are fixedly installed on the rear side of the moving bars, and the two pressure springs are fixedly connected to the rear inner wall of the long groove. A circular box is fixedly connected to the fixed frame, and cylinder a is fixedly installed on the front of the circular box. The output shaft of cylinder a movably passes through the circular box.

[0007] Preferably, each of the connecting strips has two fixing grooves, and several short rods are fixedly installed in each fixing groove. Each short rod is movably sleeved with a short post.

[0008] Preferably, a square box is fixedly connected to the rear side of the main body, a vertical box is fixedly connected to the square box, a rotating block is movably connected inside the square box, a through groove is opened on the rotating block, a rotating shaft movably passes through the square box, and the rotating block and the rotating shaft are fixedly connected.

[0009] Preferably, a lifting block is movably connected inside the vertical box, and two lifting rods are fixedly installed on the upper side of the lifting block. Both lifting rods movably pass through the upper wall of the vertical box, and control strips are fixedly installed on the two lifting rods.

[0010] Preferably, the inner wall of the main body is provided with an annular groove, an annular airbag is fixedly installed in the annular groove, and a round tube is fixedly installed on the upper side of the main body.

[0011] Preferably, an annular plate is fixedly installed inside the circular tube, and a vertical tube is fixedly installed inside the annular plate. The vertical tube is fixedly inserted through the main body and fixedly connected to the annular airbag.

[0012] Preferably, a bracket is fixedly installed at the upper end of the circular tube, a cylinder b is fixedly installed on the bracket, a circular plate is fixedly installed at the lower end of the output shaft of the cylinder b, a lifting plug is fixedly installed on the lower side of the circular plate, and the lifting plug is movably connected to the circular tube.

[0013] Compared with the prior art, the present invention provides a storable hydraulic check valve control system, which has the following beneficial effects: This accumulator-type hydraulic check valve control system, after the connecting bar enters the chute, allows the accumulator to drive the rotating ring to rotate, which in turn drives the rotating shaft to rotate back and forth. When the rotating shaft rotates and causes the baffle to rotate and close the valve, cylinder A can be activated to use its output shaft to squeeze the moving bar backward. This causes the connecting bar to move backward and separate from the chute, preventing the accumulator from driving the rotating shaft. When it is necessary to open the valve, cylinder A is activated to retract its output shaft. The pressure of the pressure spring then drives the moving bar forward, which in turn drives the connecting bar into the chute, allowing the accumulator to drive the rotating shaft to rotate. Thus, after the valve is closed, cylinder A is activated to extend its output shaft. This prevents the accumulator from opening the valve due to accidental activation when the valve is closed. This invention achieves controllable linkage / separation between the accumulator and the rotating shaft through the coordinated operation of cylinder A, the moving bar, the connecting bar, and the pressure spring. After the valve is closed, cylinder A drives the output shaft to squeeze the moving bar, causing the connecting bar to separate from the groove of the rotating ring, cutting off the driving force transmission of the accumulator to the rotating shaft. Even if the accumulator is accidentally started or there is signal interference, it will not be able to drive the valve to open. This eliminates the risk of unexpected opening and closing from the mechanical structure level and greatly improves the operational safety of the system under high pressure and high-risk conditions.

[0014] This accumulator-type hydraulic check valve control system utilizes a short rod that can rotate, reducing friction between the connecting bar and the transverse groove. This minimizes friction and extends the device's lifespan. The short rod and rotatable short rod, positioned within the fixed groove of the connecting bar, transform the rigid sliding friction between the connecting bar and the transverse groove into rolling friction of the short rod, significantly reducing frictional resistance and component wear during transmission. This design effectively prevents component deformation and decreased fit accuracy caused by long-term operation, lowers maintenance and replacement frequency, extends the overall control system's lifespan, and ensures valve opening and closing flexibility and response accuracy.

[0015] This accumulator-type hydraulic check valve control system uses an accumulator tank to rotate a baffle to close the valve. After the valve is closed, the rotating block rotates along with it, causing the through slot to stand upright. This allows the lifting block to align with the through slot and move downwards into the slot, thus locking the rotating block. This prevents the rotating shaft from rotating when the valve is closed, thereby preventing the valve from opening. When the valve needs to be opened, the lifting block can be moved upwards by pulling the control bar.

[0016] This accumulator-type hydraulic check valve control system uses cylinder b to move the lifting plug downwards after the valve is closed. This allows air to be injected into the annular air bladder through the vertical pipe, causing it to expand. This allows the annular air bladder to fit tightly against the baffle, thus improving the valve's sealing effect.

[0017] 5. The energy storage hydraulic check valve control system of this invention features a compact layout of functional modules and clear linkage logic. When the valve is opened, power transmission and unlocking can be restored simply by retracting the output shaft via cylinder a and raising the lifting block via the control bar, making the operation process simple. Furthermore, the mounting structure of the core transmission and sealing components is easy to disassemble, facilitating daily inspection, maintenance, and replacement, thus reducing operating costs. It is suitable for various fluid media and pressure levels, demonstrating strong adaptability. Attached Figure Description

[0018] Figure 1 This is a frontal perspective view of the present invention; Figure 2 This is a three-dimensional structural diagram of the rotating shaft of the present invention; Figure 3 This is a three-dimensional structural diagram of the connecting strip of the present invention; Figure 4 This is a three-dimensional structural diagram of the short column of the present invention; Figure 5 This is a cross-sectional perspective view of the three-dimensional structure of the square box of the present invention; Figure 6 This is a three-dimensional structural diagram of the circular box of the present invention; Figure 7 This is a cross-sectional perspective view of the three-dimensional structure of the circular box of the present invention; Figure 8 This is a three-dimensional structural diagram of cylinder b of the present invention.

[0019] In the diagram: 1. Main body; 2. Annular wall groove; 3. Annular airbag; 4. Base; 5. Round box; 6. Cylinder a; 7. Fixing frame; 8. Rotating ring; 9. Energy storage tank; 10. Connecting pipe; 11. Rotating shaft; 12. Cylinder b; 13. Round pipe; 14. Vertical box; 15. Control bar; 16. Square box; 17. Connecting frame; 18. Baffle; 19. Round plate; 20. Lifting plug; 21. Bracket; 22. Vertical pipe; 23. Annular plate; 24. Lifting rod; 25. Lifting block; 26. Rotating block; 27. Through groove; 28. Pressure spring; 29. ​​Short column; 30. Fixing groove; 31. Connecting bar; 32. Moving bar; 33. Short rod; 34. Horizontal groove; 35. Sliding groove; 36. Long groove. Detailed Implementation

[0020] The present invention will be further described in detail below with reference to the accompanying drawings, wherein the same parts are indicated by the same reference numerals. It should be noted that the terms “front”, “rear”, “left”, “right”, “upper” and “lower”, “bottom surface” and “top surface” used in the following description refer to the directions in the drawings, and the terms “inner” and “outer” refer to the directions toward or away from the geometric center of a specific part, respectively.

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] Please see Figures 1-8 The present invention provides a technical solution: a storage-type hydraulic check valve control system, comprising a main body 1, a base 4 fixedly mounted on the main body 1, a connecting pipe 10 fixedly mounted on the main body 1, a rotating shaft 11 movably connected inside the connecting pipe 10, a connecting frame 17 fixedly mounted on the rotating shaft 11, a baffle 18 fixedly mounted on the connecting frame 17, a fixing frame 7 fixedly mounted on the connecting pipe 10, an energy storage tank 9 mounted on the fixing frame 7, and a rotating ring 8 sleeved on the rotating shaft 11, the rotating ring 8 being connected to the output shaft of the energy storage tank 9. Next, two sliding grooves 35 are formed on the inner side wall of the rotating ring 8, and connecting strips 31 are movably connected in both sliding grooves 35. Moving strips 32 are fixedly installed on the two connecting strips 31. Two transverse grooves 34 are formed on the rotating shaft 11, and the two connecting strips 31 are movably connected to the two transverse grooves 34 respectively. A long groove 36 is formed on the front of the rotating shaft 11, and the long groove 36 communicates with the two transverse grooves 34. The moving strips 32 are movably connected to the long groove 36. Two pressure springs 28 are fixedly installed on the rear side of the moving strips 32. The energy storage tank 9 is fixedly connected to the inner wall of the long groove 36. A round box 5 is fixedly connected to the fixed frame 7. A cylinder a6 is fixedly installed on the front of the round box 5. The output shaft of the cylinder a6 moves through the round box 5 and enters the slide groove 35 through the connecting strip 31. The energy storage tank 9 can drive the rotating shaft 11 to rotate back and forth by driving the rotating ring 8 to rotate. When the rotating shaft 11 rotates and drives the baffle 18 to rotate and close the valve, the cylinder a6 can be started to use the output shaft to squeeze the moving strip 32 to move backward. This can drive the connecting strip 31 to move backward and separate from the slide groove 35. In this way, the energy storage tank 9 cannot drive the rotating shaft 11 to rotate. When it is necessary to open the valve, the cylinder a6 is started to retract its output shaft. In this way, the pressure of the pressure spring 28 will drive the moving strip 32 to move forward, thereby driving the connecting strip 31 into the slide groove 35. In this way, the energy storage tank 9 can drive the rotating shaft 11 to rotate. Thus, after the valve is closed, the cylinder a6 is started to extend its output shaft. This can prevent the energy storage tank 9 from starting to open the valve due to accidental contact when the valve is closed. Each connecting bar 31 has two fixing grooves 30, and several short rods 33 are fixedly installed in each fixing groove 30. Each short rod 33 is movably sleeved with a short post 29, which allows rotation on the short rod 33. This reduces the friction between the connecting bar 31 and the transverse groove 34, thereby reducing friction and improving the service life of the device. A square box 16 is fixedly connected to the rear side of the main body 1. A vertical box 14 is fixedly connected to the square box 16. A rotating block 26 is movably connected inside the square box 16. The rotating block 26 has a... There is a through slot 27, and a rotating shaft 11 movably passes through the square box 16. A rotating block 26 is fixedly connected to the rotating shaft 11. A lifting block 25 is movably connected inside the vertical box 14. Two lifting rods 24 are fixedly installed on the upper side of the lifting block 25. Both lifting rods 24 movably pass through the upper wall of the vertical box 14. Control bars 15 are fixedly installed on the two lifting rods 24. After the energy storage tank 9 drives the baffle 18 to rotate and close the valve, the rotating block 26 will rotate accordingly, causing the through slot 27 to stand upright. In this way, the lifting block 25 will align with the through slot 27 and move downward into the through slot 27. The rotating block 26 is locked inside the valve, thus preventing the rotating shaft 11 from rotating when the valve is closed, thereby preventing the valve from opening. When the valve needs to be opened, the lifting block 25 can be moved upward by pulling the control bar 15. An annular groove 2 is provided on the inner side wall of the main body 1, and an annular airbag 3 is fixedly installed in the annular groove 2. A round tube 13 is fixedly installed on the upper side of the main body 1, and an annular plate 23 is fixedly installed in the round tube 13. A vertical tube 22 is fixedly installed in the annular plate 23, and the vertical tube 22 is fixedly installed through the main body 1 and fixedly connected to the annular airbag 3. A bracket 21 is fixedly installed on the upper end of the circular tube 13. A cylinder b12 is fixedly installed on the bracket 21. A circular plate 19 is fixedly installed on the lower end of the output shaft of the cylinder b12. A lifting plug 20 is fixedly installed on the lower side of the circular plate 19. The lifting plug 20 is movably connected to the circular tube 13. After the valve is closed, the cylinder b12 can drive the lifting plug 20 to move downward, so that air can be injected into the annular airbag 3 through the vertical tube 22 to make it expand. This allows the annular airbag 3 to fit tightly against the baffle 18, thereby improving the sealing effect of the valve.

[0023] In use, the first step is as follows: After the connecting bar 31 enters the slide groove 35, the energy storage tank 9 can drive the rotating ring 8 to rotate, which in turn drives the rotating shaft 11 to rotate back and forth. When the rotating shaft 11 rotates and drives the baffle 18 to rotate and close the valve, the cylinder a6 can be activated to use the output shaft to squeeze the moving bar 32 to move backward. This will drive the connecting bar 31 to move backward and separate from the slide groove 35, so the energy storage tank 9 cannot drive the rotating shaft 11 to rotate. When it is necessary to open the valve, the cylinder a6 is activated to retract its output shaft. The pressure of the pressure spring 28 will then drive the moving bar 32 to move forward, thereby driving the connecting bar 31 into the slide groove 35. This will allow the energy storage tank 9 to drive the rotating shaft 11 to rotate. After the valve is closed, the cylinder a6 is activated to extend its output shaft. This can prevent the energy storage tank 9 from opening the valve due to accidental contact when the valve is closed.

[0024] Step 2: The short column 29 can rotate on the short rod 33, which reduces the friction between the connecting strip 31 and the transverse groove 34, thereby reducing friction and improving the service life of the device.

[0025] Step 3: After the energy storage tank 9 drives the baffle 18 to rotate and close the valve, the rotating block 26 will rotate to make the through groove 27 stand up. In this way, the lifting block 25 will be aligned with the through groove 27 and move downward into the through groove 27, thereby locking the rotating block 26. This can prevent the rotating shaft 11 from rotating when the valve is closed, thus preventing the valve from opening. When it is necessary to open the valve, the lifting block 25 can be pulled upward by the control bar 15.

[0026] Step 4: After the valve is closed, the cylinder b12 can drive the lifting plug 20 to move downward, so that air can be injected into the annular airbag 3 through the vertical pipe 22 to make it expand, so that the annular airbag 3 can fit tightly with the baffle 18, thus improving the sealing effect of the valve.

[0027] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A storage-type hydraulic check valve control system, comprising a main body (1), a base (4) fixedly mounted on the main body (1), a connecting pipe (10) fixedly mounted on the main body (1), a rotating shaft (11) movably connected inside the connecting pipe (10), a connecting frame (17) fixedly mounted on the rotating shaft (11), a baffle (18) fixedly mounted on the connecting frame (17), a fixing frame (7) fixedly mounted on the connecting pipe (10), and a storage tank (9) mounted on the fixing frame (7), characterized in that: A rotating ring (8) is sleeved on the rotating shaft (11). The rotating ring (8) is connected to the output shaft of the energy storage tank (9). Two sliding grooves (35) are opened on the inner side wall of the rotating ring (8). Connecting strips (31) are movably connected in both sliding grooves (35). Moving strips (32) are fixedly installed on the two connecting strips (31). Two transverse grooves (34) are opened on the rotating shaft (11). The two connecting strips (31) are movably connected to the two transverse grooves (34) respectively. A long groove (36) is opened on the front of the rotating shaft (11). The long groove (36) is connected to the two transverse grooves (34). Moving strips (32) are movably connected to the long groove (36). Two pressure springs (28) are fixedly installed on the rear side of the moving strip (32). The two pressure springs (28) are fixedly connected to the rear inner wall of the long groove (36). A round box (5) is fixedly connected on the fixed frame (7). A cylinder a (6) is fixedly installed on the front of the round box (5). The output shaft of cylinder a (6) movably passes through the round box (5).

2. The energy storage type hydraulic check valve control system according to claim 1, characterized in that: Each of the connecting bars (31) has two fixed grooves (30), and each fixed groove (30) has several short rods (33) fixedly installed in it. Each short rod (33) has a short post (29) movably sleeved on it.

3. The energy storage type hydraulic check valve control system according to claim 1, characterized in that: A square box (16) is fixedly connected to the rear side of the main body (1). A vertical box (14) is fixedly connected to the square box (16). A rotating block (26) is movably connected inside the square box (16). A through groove (27) is opened on the rotating block (26). A rotating shaft (11) movably passes through the square box (16). The rotating block (26) is fixedly connected to the rotating shaft (11).

4. The energy storage type hydraulic check valve control system according to claim 3, characterized in that: The vertical box (14) is movably connected to a lifting block (25). Two lifting rods (24) are fixedly installed on the upper side of the lifting block (25). Both lifting rods (24) movably pass through the upper wall of the vertical box (14). Control bars (15) are fixedly installed on the two lifting rods (24).

5. The energy storage hydraulic check valve control system according to claim 1, characterized in that: The inner wall of the main body (1) is provided with an annular groove (2), an annular airbag (3) is fixedly installed in the annular groove (2), and a round tube (13) is fixedly installed on the upper side of the main body (1).

6. The energy storage type hydraulic check valve control system according to claim 5, characterized in that: An annular plate (23) is fixedly installed inside the circular tube (13), and a vertical tube (22) is fixedly installed inside the annular plate (23). The vertical tube (22) is fixedly inserted through the main body (1) and fixedly connected to the annular airbag (3).

7. The energy storage type hydraulic check valve control system according to claim 5, characterized in that: A bracket (21) is fixedly installed on the upper end of the circular tube (13), a cylinder b (12) is fixedly installed on the bracket (21), a circular plate (19) is fixedly installed on the lower end of the output shaft of the cylinder b (12), a lifting plug (20) is fixedly installed on the lower side of the circular plate (19), and the lifting plug (20) is movably connected to the circular tube (13).

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