A hydraulically controlled drive mechanism for a non-return butterfly valve

Abstract

The present invention relates to the technical field of hydraulic drive mechanisms of check butterfly valves, and discloses a hydraulic drive mechanism for a check butterfly valve, comprising: a check butterfly valve body and a fixing frame, the inner side of the fixing frame is rotatably connected to a hydraulic rod, the telescopic end of the hydraulic rod is connected to a push head, the outer side of the push head is rotatably connected to a connecting plate, a swivel column is provided inside the connecting plate, a connecting cylinder is fixed at one end of the swivel column close to the check butterfly valve body, a valve stem is rotatably connected inside the check butterfly valve body, and further comprises: a shaking-stopping part, which is provided at one end of the connecting cylinder close to the valve stem and is located between the valve stem and the connecting cylinder; a matching part, which is provided at one end of the shaking-stopping part close to the valve stem and is connected to the valve stem; an auxiliary lubrication part, which is provided at the inner side of the shaking-stopping part; the present invention utilizes the shaking-stopping part and the matching part to connect the hydraulic drive mechanism to the valve stem, so that the rotational shaking of the valve stem caused by the impact of water flow can be transmitted to the shaking-stopping part through the matching part, and the shaking-stopping part is utilized to prevent the rotational shaking of the valve stem from being transmitted to the hydraulic drive mechanism.

Description

Technical Field

[0001] The invention relates to the technical field of hydraulically controlled drive mechanisms for check butterfly valves, and in particular to a hydraulically controlled drive mechanism for check butterfly valves. Background Art

[0002] In the technical field of hydraulically controlled drive mechanisms of check butterfly valves, check butterfly valves usually need to be equipped with hydraulically controlled drive mechanisms, and the fixed frame, connecting tube, connecting plate and hydraulic rod constitute the hydraulically controlled drive mechanism. The hydraulic rod in the hydraulically controlled drive mechanism is used to push the connecting plate to rotate under the support of the fixed frame, so that the connecting plate can push the valve stem to rotate, and the valve stem drives the valve to rotate on the inner side of the check butterfly valve body, thereby controlling the opening and closing of the valve. However, the hydraulically controlled drive mechanism used in traditional check butterfly valves still has problems in actual operation.

[0003] For example, during actual operation, the valve stem will rotate and vibrate due to the impact of water flow in the check butterfly valve. This vibration will be transmitted to the hydraulic drive mechanism through the valve stem and other connecting parts, causing the hydraulic drive structure to vibrate, increase noise and shorten the service life of the mechanism. Summary of the invention

[0004] The present invention provides a hydraulically controlled drive mechanism for a check butterfly valve, which connects the hydraulically controlled drive mechanism to a valve stem by utilizing an anti-shake portion and a matching portion, so that rotational shaking of the valve stem caused by water flow impact can be transmitted to the anti-shake portion through the matching portion, and the anti-shake portion is utilized to prevent the rotational shaking of the valve stem from being transmitted to the hydraulically controlled drive mechanism, thereby reducing noise and extending the service life of the hydraulically controlled drive mechanism.

[0005] In order to solve the above technical problems, the technical solution of the present invention is as follows:

[0006] In the first aspect, a hydraulically controlled drive mechanism for a check butterfly valve comprises: a check butterfly valve body and a fixed frame arranged on one side of the check butterfly valve body, a hydraulic rod is rotatably connected to the inner side of the fixed frame, a push head is connected to the telescopic end of the hydraulic rod, and the push head is rotatably connected to the fixed frame, a connecting plate is rotatably connected to the outer side of the push head, a swivel column is penetrated inside the connecting plate, and the swivel column penetrates the fixed frame for rotational connection, a connecting cylinder is fixed to one end of the swivel column close to the check butterfly valve body, a valve stem is rotatably penetrated inside the check butterfly valve body, and the positions of the valve stem and the connecting cylinder correspond, a valve is fixed to the outer side of the valve stem, and the valve is located on the inner side of the check butterfly valve body, and further comprises:

[0007] The anti-shake part is arranged at one end of the connecting tube close to the valve stem and is located between the valve stem and the connecting tube to prevent the rotational shake generated by the valve from being transmitted to the connecting tube;

[0008] The anti-shake part includes a connecting piece and a buffer piece, the connecting piece is connected to the connecting tube and the valve stem, and the buffer piece is arranged in the connecting piece;

[0009] The matching part is arranged at one end of the anti-shake part close to the valve stem and connected to the valve stem to adapt to and connect valve stems of various sizes;

[0010] The matching part includes an adjusting member and an adapting member, wherein the adjusting member is arranged through the connecting member, and the adapting member is connected to the adjusting member and to the valve stem;

[0011] The auxiliary lubrication part is arranged inside the anti-shake part, connected to the anti-shake part, and penetrates a side of the anti-shake part close to the fixing frame, so as to lubricate the hydraulic control driving mechanism with the assistance of the anti-shake part;

[0012] The auxiliary lubrication part includes an extrusion part and a spray storage part. The extrusion part is arranged on the inner side of the connecting part and is connected to the buffer part. The spray storage part is arranged on the inner side of the connecting part and penetrates the connecting part. The extrusion part contacts the spray storage part.

[0013] Furthermore, the connecting piece includes:

[0014] A cone cover is fixed to an end of the connecting tube away from the fixing frame;

[0015] There are two push plates, which are symmetrically arranged on the inner side of the cone cover;

[0016] A first J-plate, movably passing through the cone cover and being guide-connected to one of the push plates;

[0017] The second J plate is movably arranged to penetrate the cone cover and be far away from the first J plate, and is connected to the other push plate guide, and the first J plate and the second J plate are connected to the valve stem through a fixing component.

[0018] Furthermore, the buffer member comprises:

[0019] There are two C sleeves, the two C sleeves are symmetrically fixed on the inner side of the cone cover, and the push plate is located between the two C sleeves;

[0020] The movable groove is opened through the interior of the C sleeve;

[0021] The air grooves are symmetrically arranged inside the C sleeve and located on both sides of the movable groove;

[0022] The buffer part is arranged inside the movable groove and the air groove.

[0023] Further, the buffer component comprises:

[0024] A through hole is symmetrically provided on the C sleeve and is connected to the movable groove and the air groove;

[0025] The first piston is arranged inside the movable groove and fits with the C sleeve;

[0026] The second piston is arranged inside the air groove and fits with the C sleeve;

[0027] A buffer solution is filled between the movable groove and the first piston and between the air groove and the second piston, and passes through the through hole;

[0028] The arc guide rod has one end fixedly connected to the first piston and the other end fixedly connected to the push plate and is located inside the movable groove.

[0029] Furthermore, the adjusting member comprises:

[0030] The movable port is symmetrically opened through the cone cover and is located outside the first J plate and the second J plate;

[0031] A clearance hole is opened through the top of the cone cover and is connected with the moving port;

[0032] A pull rope, one end of which is fixed to a side of the second J plate close to the first J plate, and the other end of which passes through a side of the first J plate close to the second J plate and is fixedly connected to the first J plate;

[0033] The push-adjusting part is arranged at a position that penetrates the cone cover and is far away from the first J plate.

[0034] Further, the push-adjusting part includes:

[0035] A screw rod passes through the cone cover and is rotatably connected at a position away from the first J plate;

[0036] A rotary handle is fixed to an end of the screw rod away from the first J plate;

[0037] The semicircular plate is threadably sleeved on the outer side of the screw rod and is fixedly connected to the second J-plate.

[0038] Furthermore, the adapter comprises:

[0039] There are two guide plates, and the two guide plates are respectively fixedly connected to one end of the two push plates away from the arc guide rod;

[0040] The first J-plate and the second J-plate are respectively sleeved on the outer sides of the two guide plates;

[0041] The fixing hole is formed through the first J-plate and the second J-plate on a side away from the guide plate.

[0042] Further, the extrusion member comprises:

[0043] An air bag, fixed to one end of one of the C sleeves and connected to the air groove;

[0044] A support rod, fixed on the inner side of the cone cover and located between the two C sleeves;

[0045] A lever, rotatably connected to the outside of the support rod;

[0046] A push block is fixed to one end of the lever and contacts the side of the air bag away from the C sleeve;

[0047] A pressure plate is fixed to the other end of the lever.

[0048] The inner ring is fixed on the inner side of the cone cover and is located between the two C sleeves. The pressure plate is located between one of the C sleeves and the inner ring.

[0049] A rubber bag is fixed on the outer side of the inner ring and is located between the inner ring and the pressure plate;

[0050] A bellows, fixed to one end of the rubber bag;

[0051] The bent pipe has one end fixed to the end of the bellows away from the rubber bag and fixedly connected to the outer side of the inner ring, and the other end penetrates the side of the cone close to the fixing frame, and the diameter of the mouth gradually shrinks towards the fixing frame;

[0052] The injection and discharge parts are arranged on the elbow and pass through the cone cover.

[0053] Further, the injection-discharging parts include:

[0054] A row pipe, one end of which is fixed to the other end of the bent pipe, and the diameter of the row pipe gradually shrinks towards the fixing frame;

[0055] A filling pipe, one end of which is arranged on the elbow and communicated with the elbow, and the other end of which passes through the cone cover;

[0056] A filling cylinder, fixed to the other end of the filling pipe;

[0057] A threaded cap that is threaded onto the outside of the filling cylinder.

[0058] The above solution of the present invention includes at least the following beneficial effects:

[0059] By providing the anti-shake part and the matching part, the staff can use the fixing parts to connect the matching part and the anti-shake part to the valve stem from the adapter provided in the matching part, and at the same time, the valve stem can be connected to the connecting tube through the cooperation of the anti-shake part and the matching part. When the valve stem produces rotational shaking due to the impact of water flow in the check butterfly valve body, the valve stem will transmit the external force to the adapter provided in the matching part and the connecting part provided in the anti-shake part, so that the connecting part uses the external force to push the buffer part, thereby causing the buffer part to consume the external force and prevent the shaking from being transmitted to the connecting tube, thereby preventing the shaking caused by the water flow impact in the butterfly valve body from being transmitted to the connecting tube, the connecting plate and the hydraulic rod, thereby reducing the generation of noise and improving the service life of the hydraulic control drive mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0060] Figure 1 A schematic diagram of the overall three-dimensional structure of a check butterfly valve and a hydraulically controlled drive mechanism provided in an embodiment of the present invention;

[0061] Figure 2 A schematic diagram of the three-dimensional structure of a connection disk provided in an embodiment of the present invention;

[0062] Figure 3 A schematic diagram of a three-dimensional structure of a cone cover, a fixing frame, a first J-plate, a second J-plate and a screw rod assembly provided in an embodiment of the present invention;

[0063] Figure 4 The embodiment of the present invention provides Figure 3 Schematic diagram of the structure at A in FIG.

[0064] Figure 5 A schematic diagram of a three-dimensional structure of a hydraulic rod, a fixing frame, a connecting plate and a connecting cylinder assembly provided in an embodiment of the present invention;

[0065] Figure 6 A schematic diagram of the three-dimensional structure of a hydraulic rod, a connecting plate and a connecting cylinder combination provided in an embodiment of the present invention;

[0066] Figure 7 A schematic diagram of the three-dimensional structure of a cone cover close to a connecting tube provided in an embodiment of the present invention;

[0067] Figure 8 A schematic diagram of a three-dimensional structure of a first J-plate and a second J-plate provided in an embodiment of the present invention in a state where the first J-plate and the second J-plate are away from each other;

[0068] Fig. 9 The embodiment of the present invention provides Figure 8 Schematic diagram of the structure at B in FIG.

[0069] Fig.10 A schematic diagram of a cross-sectional three-dimensional structure of a cone cover, a C cover and an air slot combination provided in an embodiment of the present invention;

[0070] Fig.11 A schematic cross-sectional three-dimensional structural diagram of a cone cover, a C cover, an arc guide rod and a movable groove combination provided in an embodiment of the present invention;

[0071] Fig.12 A schematic diagram of a planar structure of a C sleeve, an air slot and a through hole combination provided in an embodiment of the present invention;

[0072] Fig.13 A schematic cross-sectional three-dimensional structure diagram of a C sleeve, cone cover, air slot and airbag assembly provided in an embodiment of the present invention;

[0073] Fig.14 A schematic diagram of a cross-sectional three-dimensional structure of a cone cover, a C sleeve, an airbag and a perforation assembly provided in an embodiment of the present invention;

[0074] Fig.15A schematic diagram of the three-dimensional structure of a lever, a bent pipe, a filling cylinder, a rubber bag and a discharge pipe assembly provided in an embodiment of the present invention;

[0075] Fig.16 A schematic plan view of the structure of a lever, a push block, a pressure plate and a support rod assembly provided in an embodiment of the present invention.

[0076] Description of reference numerals:

[0077] In the figure: 1. Check butterfly valve body; 2. Fixing ring; 3. Support foot; 4. Fixing plate; 5. Shaft seal; 6. Valve stem; 7. Reinforcement plate; 8. Valve; 9. Connecting plate; 10. Fixing frame; 11. Support frame; 12. Rotating rod; 13. Hydraulic rod; 14. Pushing head; 15. Rotating rod; 16. Connecting plate; 17. Rotating column; 18. Connecting cylinder; 19. Cone cover; 20. C sleeve; 21. Movable groove; 22. Air groove; 23. Through hole; 24. First piston; 25. Second piston; 26. Buffer; 27. Arc guide Rod; 28, push plate; 29, guide plate; 30, first J plate; 31, fixing hole; 32, second J plate; 33, pull rope; 34, screw rod; 35, rotary handle; 36, semicircular plate; 37, inner ring; 38, rubber bag; 39, corrugated cylinder; 40, bent pipe; 41, air bag; 42, support rod; 43, lever; 44, push block; 45, pressure plate; 46, perforation; 47, drain pipe; 48, filling pipe; 49, filling cylinder; 50, threaded cover; 51, moving port; 52, clearance hole; 53, oil level sensor. DETAILED DESCRIPTION

[0078] The exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present invention and to enable the scope of the present invention to be fully communicated to those skilled in the art.

[0079] like Figures 1 to 16 As shown, an embodiment of the present invention provides a hydraulically controlled driving mechanism for a check butterfly valve, comprising: a check butterfly valve body 1 and a fixing frame 10 arranged on one side of the check butterfly valve body 1, a hydraulic rod 13 is rotatably connected to the inner side of the fixing frame 10, a push head 14 is connected to the telescopic end of the hydraulic rod 13, and the push head 14 is rotatably connected to the fixing frame 10, a connecting plate 16 is rotatably connected to the outer side of the push head 14, a rotary column 17 is penetrated inside the connecting plate 16, and the rotary column 17 penetrates the fixing frame 10 and is rotatably connected, a connecting cylinder 18 is fixed to one end of the rotary column 17 close to the check butterfly valve body 1, a valve stem 6 is rotatably penetrated inside the check butterfly valve body 1, and the positions of the valve stem 6 and the connecting cylinder 18 correspond, a valve 8 is fixed to the outer side of the valve stem 6, and the valve 8 is located on the inner side of the check butterfly valve body 1, and it is characterized in that it also includes:

[0080] The anti-shake part is arranged at one end of the connecting tube 18 close to the valve stem 6 and is located between the valve stem 6 and the connecting tube 18 to prevent the rotational shake generated by the valve 8 from being transmitted to the connecting tube 18;

[0081] The anti-shake part includes a connecting piece and a buffering piece, the connecting piece is connected to the connecting tube 18 and the valve stem 6, and the buffering piece is arranged in the connecting piece;

[0082] The matching part is arranged at one end of the anti-shake part close to the valve stem 6 and connected to the valve stem 6 to adapt to and connect valve stems 6 of various sizes;

[0083] The matching part includes an adjusting member and an adapting member, the adjusting member is arranged through the connecting member, the adapting member is connected to the adjusting member and is connected to the valve stem 6;

[0084] The auxiliary lubrication part is arranged inside the anti-shake part, connected to the anti-shake part, and penetrates a side of the anti-shake part close to the fixing frame 10, so as to lubricate the hydraulic control driving mechanism with the assistance of the anti-shake part;

[0085] The auxiliary lubrication part includes an extrusion part and a spray storage part. The extrusion part is arranged on the inner side of the connecting part and is connected with the buffer part. The spray storage part is arranged on the inner side of the connecting part and penetrates the connecting part. The extrusion part contacts the spray storage part.

[0086] Specifically, a fixing ring 2 is fixed to the outside of the check butterfly valve body 1, and a support foot 3 is symmetrically fixed to the outside of the check butterfly valve body 1. A fixing plate 4 is fixed to the end of the support foot 3 away from the check butterfly valve body 1, and a shaft seal 5 is fixed through the inside of the check butterfly valve body 1. A valve stem 6 is rotatably connected to the inside of the shaft seal 5. A connecting disk 9 is fixed to the outside of the valve stem 6, and the connecting disk 9 is located near the fixing frame 10. The connecting disk 9 is fixedly connected to the first J plate 30 and the second J plate 32 from the fixing hole 31 through a fixing component. A support frame 11 is fixed to one side of the support foot 3, and the support frame 11 is fixedly connected to the fixing frame 10. The liquid A rotating rod 12 is symmetrically fixed to the outside of the pressure rod 13, and the rotating rod 12 passes through the fixed frame 10 for rotational connection. A rotating rod 15 is installed inside the push head 14, and the connecting plate 16 is rotatably mounted on the outside of the rotating rod 15. The check butterfly valve body 1 can provide a circulation channel for the liquid and can provide a rotation space for the valve 8. A reinforcing plate 7 is fixed to the outside of the valve stem 6, and the reinforcing plate 7 is fixedly connected to the valve 8. The valve 8 fits with the inner side of the check butterfly valve body 1, and can play a role in closing the channel of the check butterfly valve body 1. The shaft seal 5 can provide rotation support for the valve stem 6 and can play a sealing role. The inside of the air groove 22 is filled with air.

[0087] In the actual application process of this embodiment: Figure 1As shown: the staff can use the support foot 3 to place the check butterfly valve body 1 at the work site, and use the fixing component to penetrate the support foot 3 to firmly fix the support foot 3 to the work site. The support foot 3 can provide a firm support for the fixed frame 10 through the support frame 11. The staff can control the extension of the hydraulic rod 13 under the support of the fixed frame 10 and the rotating rod 12 according to the actual needs, so that the hydraulic rod 13 uses the telescopic end to push the push head 14, so that the push head 14 pushes the connecting plate 16 through the rotating rod 15 under the action of external force. At the same time, the hydraulic rod 13 will drive the rotating rod 12 to rotate clockwise under the support of the fixed frame 10 under the action of external force. At the same time, as the hydraulic rod 13 is extended, the push head 14 will push the connecting plate 16 through the rotating rod 15, and at the same time, the connecting plate 16 is away from the rotating column 17. The end will rotate with the rotary rod 15 as the center under the support of the push head 14, so that the connecting plate 16 can drive the rotary column 17 to rotate clockwise with the rotary column 17 as the center under the support of the fixed frame 10, and then the rotary column 17 uses the rotational power to drive the connecting cylinder 18 to rotate together, and the connecting cylinder 18 will transmit the external force to the cone cover 19, so that the cone cover 19 can pass through the C sleeve 20, the air in the air groove 22, the buffer 26, the arc guide rod 27, the push plate 28, the guide plate 29, the first J plate 30 and the second J plate 32 to push the connecting plate 9 to rotate clockwise together, so that the connecting plate 9 can drive the valve stem 6 to rotate clockwise under the support of the shaft seal 5, so that the valve stem 6 uses the external force to drive the valve 8 to rotate clockwise in the check butterfly valve body 1 through the reinforcement plate 7, thereby opening the channel of the check butterfly valve body 1.

[0088] As a preferred embodiment of the present invention, the connecting piece includes:

[0089] The cone cover 19 is fixed to the end of the connecting tube 18 away from the fixing frame 10;

[0090] There are two push plates 28, and the two push plates 28 are symmetrically arranged on the inner side of the cone cover 19;

[0091] A first J-plate 30 is movably disposed through the cone cover 19 and is guide-connected to one of the push plates 28;

[0092] The second J-plate 32 is movably arranged to penetrate the cone cover 19 and be far away from the first J-plate 30 , and is connected to another push plate 28 for guidance. The first J-plate 30 and the second J-plate 32 are connected to the valve stem 6 through a fixing component.

[0093] Buffer parts include:

[0094] There are two C sleeves 20, which are symmetrically fixed on the inner side of the cone cover 19, and the push plate 28 is located between the two C sleeves 20;

[0095] The movable groove 21 is opened through the interior of the C sleeve 20;

[0096] The air grooves 22 are symmetrically arranged inside the C sleeve 20 and located on both sides of the movable groove 21;

[0097] The buffer component is arranged inside the movable groove 21 and the air groove 22 .

[0098] Specifically, the connecting tube 18 can provide stable support for the cone cover 19, the cone cover 19 can stably support the C sleeve 20, the C sleeve 20 can provide opening space for the movable groove 21 and the air groove 22, the movable groove 21 can provide moving space and guiding function for the first piston 24, and can provide moving space for the arc guide rod 27, and the air groove 22 can provide moving space and guiding function for the second piston 25.

[0099] Buffer parts include:

[0100] The through hole 23 is symmetrically provided on the C sleeve 20 and communicates with the movable groove 21 and the air groove 22;

[0101] The first piston 24 is disposed inside the movable groove 21 and is fitted with the C sleeve 20;

[0102] The second piston 25 is disposed inside the air groove 22 and is in contact with the C sleeve 20;

[0103] The buffer 26 is filled between the movable groove 21 and the first piston 24 and between the air groove 22 and the second piston 25, and passes through the through hole 23;

[0104] The arc guide rod 27 has one end fixedly connected to the first piston 24 and the other end fixedly connected to the push plate 28 , and is located inside the movable groove 21 .

[0105] Specifically, the movable groove 21, the air groove 22 and the through hole 23 can provide a circulation channel for the buffer solution 26. The first piston 24 and the second piston 25 are made of rubber material and can fit with the C sleeve 20 by utilizing their own elasticity, and respectively play a sealing role in the movable groove 21 and the air groove 22. The first piston 24 can push the buffer solution 26 under the action of external force, and the buffer solution 26 can use external force to push the second piston 25, so that the second piston 25 moves along the air groove 22 to squeeze the air.

[0106] In the actual application of this embodiment, when the valve 8 is in the Figure 1In the state shown, when the water flow impact in the check butterfly valve body 1 causes the valve 8 to rotate and shake, the rotational shaking generated by the valve 8 will be transmitted to the valve stem 6, and the valve stem 6 will be transmitted to the first J plate 30 and the second J plate 32 through the connecting plate 9 and the fixing component, and the first J plate 30 and the second J plate 32 will be pushed to rotate and shake together under the action of the rotational shaking, so that the first J plate 30 and the second J plate 32 can push the guide plate 29 to rotate and shake together with the valve stem 6 under the action of external force, so that the guide plate 29 uses external force to drive the push plate 28 to rotate and shake with the valve stem 6, and at the same time, the push plate 28 will use external force to push the arc guide rod 27, so that the arc guide rod 27 pushes the first piston 24 on the inner side of the movable groove 21, so that the first piston 24 moves along the movable groove 21 under the action of external force and the support of the C sleeve 20, so that the first piston 24 squeezes the buffer solution 26 during the movement, so that the buffer solution 26 passes through the through hole 23 under the action of external force and moves to the inner side of the air groove 22, and at the same time squeezes the buffer solution 26 inside the air groove 22, so that the buffer solution 26 can push the second piston 25 under the action of external force, so that the second piston 25 moves along the air groove 22 under the support of the C sleeve 20, and squeezes the air in the air groove 22 to buffer and consume the external force, and at the same time, the air will move to the inner side of the airbag 41 under the action of pressure, so that the airbag 41 will expand and tighten, and at the same time, the airbag 41 will use the external force to push the push block 44 during the expansion process.

[0107] In another preferred embodiment of the present invention, the adjusting member comprises:

[0108] The moving opening 51 is symmetrically opened through the cone cover 19 and is located outside the first J-plate 30 and the second J-plate 32;

[0109] The clearance hole 52 is opened through the top of the cone cover 19 and communicates with the moving port 51;

[0110] A pull rope 33, one end of which is fixed to a side of the second J-plate 32 close to the first J-plate 30, and the other end of which passes through a side of the first J-plate 30 close to the second J-plate 32 and is fixedly connected to the first J-plate 30;

[0111] The push-adjusting component penetrates the cone cover 19 and is arranged at a position away from the first J-plate 30 .

[0112] Specifically, the cone cover 19 can provide opening space for the moving opening 51 and the giving way hole 52. The moving opening 51 can provide penetration, movement and swing space for the first J plate 30 and the second J plate 32, and the giving way hole 52 can provide a penetration channel for the pull rope 33. The pull rope 33 can be deformed under the action of external force. When the second J plate 32 moves downward, it will use external force to penetrate the moving opening 51 to pull the pull rope 33, so that the pull rope 33 uses external force to pull the first J plate 30 upward under the support of the cone cover 19. When the second J plate 32 moves upward, the pulling force on the pull rope 33 will be released, and the length of the released pull rope 33 will be determined according to the distance the second J plate 32 moves upward, so that the first J plate 30 can penetrate the moving opening 51 and move downward under the action of gravity. At this time, the first J plate 30 will pull the pull rope 33 to straighten, so that the first J plate 30 and the second J plate 32 maintain a symmetrical position.

[0113] Push adjustment parts include:

[0114] The screw rod 34 penetrates through the cone cover 19 and is rotatably connected to the position away from the first J plate 30;

[0115] A rotary handle 35 is fixed to an end of the screw rod 34 away from the first J-plate 30;

[0116] The semicircular plate 36 is threadably mounted on the outer side of the screw rod 34 and is fixedly connected to the second J-plate 32 .

[0117] Specifically, the cone cover 19 can provide rotational support for the screw rod 34, and the screw rod 34 can firmly support the rotary handle 35. The staff can push the screw rod 34 to rotate through the rotary handle 35. The screw rod 34 can use the threaded action to push the semicircular plate 36 up and down according to the rotation direction. The semicircular plate 36 can push the second J plate 32 to move together under the action of external force.

[0118] Adapter parts include:

[0119] There are two guide plates 29, and the two guide plates 29 are respectively fixedly connected to one end of the two push plates 28 away from the arc guide rod 27;

[0120] The first J-plate 30 and the second J-plate 32 are respectively mounted on the outer sides of the two guide plates 29;

[0121] The fixing hole 31 is formed through a surface of the first J-plate 30 and the second J-plate 32 away from the guide plate 29 .

[0122] Specifically, the push plate 28 can provide support for the guide plate 29 under the support of the arc guide rod 27, and the guide plate 29 can provide movement guiding function for the first J plate 30 and the second J plate 32. When the first J plate 30 and the second J plate 32 are moving, they move along the guide plate 29 under the guidance of the guide plate 29. The first J plate 30 and the second J plate 32 can provide opening space for the fixing hole 31. The staff can use the fixing parts to penetrate the fixing hole 31 and the connecting plate 9, so that the first J plate 30 and the second J plate 32 can be connected to the connecting plate 9.

[0123] In the actual application of this embodiment, before installing the hydraulic drive mechanism, the staff can rotate the handle 35 according to the actual needs, so that the handle 35 uses external force to push the screw rod 34 to rotate under the support of the cone cover 19, so that the screw rod 34 uses the rotational power and the thread action to push the semicircular plate 36 to move upward or downward according to the rotation direction, so that the semicircular plate 36 pushes the second J plate 32 to move upward or downward along the guide plate 29 together, and at the same time, with the cooperation of the pull rope 33, the second J plate 32 and the first J plate 30 are moved along the guide plate 29 at the same time and maintain symmetrical positions, so that the positions of the fixing holes 31 opened on the first J plate 30 and the second J plate 32 correspond to the fixed positions of the connecting disk 9 to be connected, so that the position of the fixing hole 31 can be adapted to the connecting disk 9 to be connected, and then the fixing component is used to penetrate the fixing hole 31 and the connecting disk 9 to fix the first J plate 30 and the second J plate 32 to the connecting disk 9, so that the device can adapt to connecting disks 9 of various sizes, and then it is convenient to connect with valve stems 6 of various diameters, thereby improving adaptability.

[0124] As a preferred embodiment of the present invention, the extrusion member comprises:

[0125] An air bag 41 is fixed to one end of one of the C sleeves 20 and communicates with the air groove 22;

[0126] The support rod 42 is fixed to the inner side of the cone cover 19 and is located between the two C sleeves 20;

[0127] A lever 43 is rotatably connected to the outer side of the support rod 42;

[0128] A push block 44 is fixed to one end of the lever 43 and contacts a side of the air bag 41 away from the C sleeve 20;

[0129] The pressing plate 45 is fixed to the other end of the lever 43 .

[0130] Specifically, the C sleeve 20 can provide stable support for the airbag 41. The airbag 41 is elastic and can be deformed under the action of external force. It will rebound after the external force disappears. The cone cover 19 can stably support the support rod 42. The support rod 42 can provide rotational support for the lever 43. The lever 43 can provide support for the push block 44 and the pressure plate 45. The push block 44 has a certain curvature. The pressure plate 45 can squeeze the rubber bag 38 under the action of external force, and the weight of the pressure plate 45 is greater than that of the push block 44.

[0131] The spray storage parts include:

[0132] The inner ring 37 is fixed on the inner side of the cone cover 19 and is located between the two C sleeves 20 . The pressure plate 45 is located between one of the C sleeves 20 and the inner ring 37 .

[0133] A rubber bag 38 is fixed to the outside of the inner ring 37 and is located between the inner ring 37 and the pressure plate 45;

[0134] A bellows 39 is fixed to one end of the rubber bag 38;

[0135] The bent pipe 40 has one end fixed to the end of the bellows 39 away from the rubber bag 38 and fixedly connected to the outer side of the inner ring 37, and the other end penetrates the side of the cone close to the fixing frame 10, and the diameter of the opening gradually shrinks in the direction close to the fixing frame 10;

[0136] The injection and discharge parts are arranged on the elbow 40 and pass through the cone cover 19.

[0137] Specifically, the rubber bag 38 is made of rubber material and can be squeezed and deformed under the action of external force, and will rebound after the external force disappears. The inner ring 37 can provide stable support for the rubber bag 38 and the curved pipe 40 under the support of the cone cover 19. The cone cover 19 is penetrated by a through hole 46 on one side close to the fixing frame 10, and the through hole 46 is located on the outside of the curved pipe 40. The outer wall of the curved pipe 40 is penetrated and fixed with an oil level sensor 53, and the oil level sensor 53 extends to the inner side of the rubber bag 38. The rubber bag 38 can provide stable support for the bellows 39. The bellows 39 can be stretched and deformed under the action of external force, and will rebound and reset after the external force disappears. The bellows 39, the curved pipe 40 and the rubber bag 38 can provide storage space for lubricating oil. The oil level sensor 53 can detect the oil level in the rubber bag 38 so that the staff can judge the oil amount.

[0138] The injection parts include:

[0139] One end of the row pipe 47 is fixed to the other end of the elbow 40, and the opening diameter of the row pipe 47 gradually shrinks toward the fixing frame 10;

[0140] A filling pipe 48, one end of which is disposed on the elbow 40 and communicated with the elbow 40, and the other end of which is disposed through the cone cover 19;

[0141] A filling cylinder 49 is fixed to the other end of the filling pipe 48;

[0142] The threaded cover 50 is threadedly connected to the outer side of the filling cylinder 49 .

[0143] Specifically, the bent pipe 40 can provide support for the drain pipe 47, and the drain pipe 47 can provide a discharge channel and guide for the lubricating oil, so that the lubricating oil can be discharged to the connection between the connecting cylinder 18, the rotating column 17 and the fixed frame 10. The filling pipe 48 can provide support for the filling cylinder 49 under the support of the bent pipe 40. The filling cylinder 49 and the filling pipe 48 can provide a channel for the lubricating oil to enter the bent pipe 40, and the threaded cap 50 can cover the filling cylinder 49.

[0144] In the actual application process of this embodiment, Fig.13 As shown: the staff can use the thread action to rotate the threaded cover 50 according to the actual needs, so that the threaded cover 50 is separated from the filling cylinder 49, the opening of the filling cylinder 49 is opened, and then the lubricating oil is injected into the inner side of the filling cylinder 49, so that the lubricating oil can pass through the filling cylinder 49 into the filling pipe 48, and flow into the inner side of the elbow 40 along the filling pipe 48, and then flow into the inner side of the rubber bag 38 for storage along the elbow 40 under the action of gravity. When the air bag 41 expands and tightens, it will use external force to push the push block 44, so that the push block 44 pushes the lever 43 under the action of external force, and then the lever 43 rotates clockwise with the support rod 42 as the center of the circle under the action of external force and the support of the cone cover 19, so that the lever 43 can use external force to push the pressure plate 45 to move in the direction close to the inner ring 37. During the rotation of the inner ring 43, the pressure plate 45 will use external force to squeeze the rubber bag 38, so that the rubber bag 38 is squeezed and deformed under the support of the inner ring 37. At the same time, the rubber bag 38 will pull the bellows 39 under the action of external force, so that the bellows 39 is stretched and deformed under the support of the elbow 40. At this time, the lubricating oil in the rubber bag 38 will be squeezed and discharged into the bellows 39, and pass through the bellows 39 to flow to the inner side of the elbow 40, and under the action of the squeezing force, the lubricating oil flows along the elbow 40 to the inner side of the drain pipe 47, so that part of the lubricating oil can flow into the drain pipe 47, and then be discharged to the connection between the connecting cylinder 18, the swivel column 17 and the fixing frame 10 along the drain pipe 47 under the action of gravity, so that the lubricating oil can provide lubrication for the connection between the connecting cylinder 18, the swivel column 17 and the fixing frame 10, thereby reducing wear.

[0145] When the pressure on the airbag 41 disappears, it will rebound and return to its original position by rebound force, thereby canceling the squeezing of the push block 44, so that the lever 43 can be moved with the support rod 42 as the center under the gravity of the pressure plate 45. Fig.13 As shown in the figure, the rubber bag 38 will rebound and reset, and the bellows 39 will rebound and reset together. Some of the lubricating oil remaining on the inner side of the curved pipe 40 will flow into the rubber bag 38 along the curved pipe 40 and the bellows 39 under the action of gravity and be stored.

[0146] In the process that the airbag 41 pushes the lever 43 to squeeze the rubber bag 38 to discharge the lubricating oil, the external force transmitted by the rotation and vibration of the valve 8 can be consumed, which has a buffering effect.

[0147] Working principle: the hydraulic rod 13 drives the push head 14 through its telescopic end, the push head 14 drives the connecting plate 16 to rotate, the connecting plate 16 pushes the rotary column 17 through the rotary rod 15, and the rotary column 17 drives the connecting tube 18 to rotate, and finally drives the valve 8 to rotate by connecting with the valve stem 6, thereby controlling the switch of the valve 8.

[0148] A vibration-stopping part is provided between the connecting tube 18 and the valve stem 6, and the part includes a connecting part and a buffer part. The buffer part can absorb the vibration generated by the rotation of the valve 8, prevent the vibration from being transmitted to other key parts, and ensure stability.

[0149] The matching part can adapt to valve stems 6 and connecting plates 9 of different sizes through the design of the adjusting part and the adapter, thereby enhancing the applicability of the hydraulic control drive mechanism. The staff can adjust the component as needed to connect with valve stems 6 of different specifications, thereby improving the versatility and flexibility of the device.

[0150] In order to reduce friction and wear, the lubrication part is designed. By setting the spray storage part and the extrusion part in the anti-shake part, the component can effectively provide lubrication for the hydraulic drive mechanism, reduce friction, and thus improve the service life and stability of the device.

[0151] The present invention designs multiple buffering mechanisms, including the role of mitigating external force impact through the airbag 41 and the buffer 26. The lubricating oil flows through a special channel, which reduces the friction between the components, prolongs the service life, and reduces the damage caused by vibration and impact.

[0152] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A hydraulically controlled drive mechanism for a non-return butterfly valve, comprising: A check butterfly valve body (1) and a fixing frame (10) arranged on one side of the check butterfly valve body (1), wherein a hydraulic rod (13) is rotatably connected to the inner side of the fixing frame (10), a push head (14) is connected to the telescopic end of the hydraulic rod (13), and the push head (14) is rotatably connected to the fixing frame (10), a connecting plate (16) is rotatably connected to the outer side of the push head (14), a rotary column (17) is arranged inside the connecting plate (16), and the rotary column (17) penetrates the fixing frame (10) and is rotatably connected, a connecting cylinder (18) is fixed to one end of the rotary column (17) close to the check butterfly valve body (1), a valve stem (6) is rotatably penetrated inside the check butterfly valve body (1), and the positions of the valve stem (6) and the connecting cylinder (18) correspond, a valve (8) is fixed to the outer side of the valve stem (6), and the valve (8) is located on the inner side of the check butterfly valve body (1), and the characteristic is that it also includes: A shaking prevention portion is arranged at an end of the connecting tube (18) close to the valve stem (6) and is located between the valve stem (6) and the connecting tube (18) to prevent rotational shaking generated by the valve (8) from being transmitted to the connecting tube (18); The anti-shake part comprises a connecting piece and a buffer piece, the connecting piece is connected to the connecting cylinder (18) and the valve stem (6), and the buffer piece is arranged inside the connecting piece; A matching portion, arranged at one end of the anti-shake portion close to the valve stem (6), and connected to the valve stem (6) so as to adapt to and connect valve stems (6) of various sizes; The matching part comprises an adjusting member and an adapting member, the adjusting member is arranged through the connecting member, and the adapting member is connected to the adjusting member and is also connected to the valve stem (6); An auxiliary lubrication part, arranged inside the anti-shake part and connected to the anti-shake part, and passing through a side of the anti-shake part close to the fixing frame (10), so as to lubricate the hydraulically controlled driving mechanism with the assistance of the anti-shake part; The auxiliary lubrication part includes an extrusion part and a spray storage part. The extrusion part is arranged on the inner side of the connecting part and is connected to the buffer part. The spray storage part is arranged on the inner side of the connecting part and penetrates the connecting part. The extrusion part contacts the spray storage part.

2. The hydraulically controlled drive mechanism for the check butterfly valve according to claim 1, characterized in that: The connecting piece comprises: A cone cover (19) is fixed to an end of the connecting tube (18) away from the fixing frame (10); There are two push plates (28), and the two push plates (28) are symmetrically arranged on the inner side of the cone cover (19); A first J-plate (30) is movably disposed through the cone cover (19) and is guide-connected to one of the push plates (28); The second J plate (32) is movably arranged to penetrate the cone cover (19) and be away from the first J plate (30), and is connected to the other push plate (28) in a guiding manner, and the first J plate (30) and the second J plate (32) are connected to the valve stem (6) via a fixing component.

3. The hydraulically controlled drive mechanism for the check butterfly valve according to claim 2, characterized in that: The buffer member comprises: There are two C sleeves (20), the two C sleeves (20) are symmetrically fixed on the inner side of the cone cover (19), and the push plate (28) is located between the two C sleeves (20); A movable groove (21) is provided through the interior of the C sleeve (20); The air grooves (22) are symmetrically arranged inside the C sleeve (20) and located on both sides of the movable groove (21); The buffer part is arranged inside the movable groove (21) and the air groove (22).

4. The hydraulically controlled drive mechanism for the check butterfly valve according to claim 3, characterized in that: The buffer part comprises: A through hole (23) is symmetrically formed on the C sleeve (20) and is communicated with the movable groove (21) and the air groove (22); A first piston (24) is disposed inside the movable groove (21) and is in contact with the C sleeve (20); A second piston (25) is disposed inside the air groove (22) and is in contact with the C sleeve (20); A buffer solution (26) is filled between the movable groove (21) and the first piston (24) and between the air groove (22) and the second piston (25), and passes through the through hole (23); The arc guide rod (27) has one end fixedly connected to the first piston (24) and the other end fixedly connected to the push plate (28), and is located inside the movable groove (21).

5. The hydraulically controlled drive mechanism for the check butterfly valve according to claim 4, characterized in that: The adjusting member comprises: The movable opening (51) is symmetrically opened through the cone cover (19) and is located outside the first J plate (30) and the second J plate (32); A clearance hole (52) is formed through the top of the cone cover (19) and is communicated with the moving port (51); A pull rope (33), one end of which is fixed to a side of the second J plate (32) close to the first J plate (30), and the other end of which passes through a side of the first J plate (30) close to the second J plate (32) and is fixedly connected to the first J plate (30); The push-adjusting part is arranged at a position penetrating through the cone cover (19) and away from the first J plate (30).

6. The hydraulically controlled drive mechanism for the check butterfly valve according to claim 5, characterized in that: The push and adjust parts include: A screw rod (34) passes through the cone cover (19) and is rotatably connected to a position away from the first J plate (30); A rotary handle (35) is fixed to an end of the screw rod (34) away from the first J-plate (30); The semicircular plate (36) is threadably mounted on the outer side of the screw rod (34) and is fixedly connected to the second J plate (32).

7. The hydraulically controlled drive mechanism for the check butterfly valve according to claim 6, characterized in that: The adapter comprises: There are two guide plates (29), and the two guide plates (29) are respectively fixedly connected to one end of the two push plates (28) away from the arc guide rod (27); The first J-plate (30) and the second J-plate (32) are respectively mounted on the outer sides of the two guide plates (29); A fixing hole (31) is formed through a surface of the first J-plate (30) and the second J-plate (32) away from the guide plate (29).

8. The hydraulically controlled drive mechanism for the check butterfly valve according to claim 7, characterized in that: The extrusion comprises: An air bag (41) is fixed to one end of one of the C sleeves (20) and is in communication with the air groove (22); A support rod (42) fixed to the inner side of the cone cover (19) and located between the two C sleeves (20); A lever (43) rotatably connected to the outer side of the support rod (42); A push block (44) is fixed to one end of the lever (43) and contacts a side of the air bag (41) away from the C sleeve (20); The pressing plate (45) is fixed to the other end of the lever (43).

9. The hydraulically controlled drive mechanism for the check butterfly valve according to claim 8, characterized in that: The spray storage component comprises: An inner ring (37) is fixed on the inner side of the cone cover (19) and is located between the two C sleeves (20), and the pressure plate (45) is located between one of the C sleeves (20) and the inner ring (37); A rubber bag (38) is fixed on the outside of the inner ring (37) and is located between the inner ring (37) and the pressure plate (45); A bellows (39) fixed to one end of the rubber bag (38); The bent pipe (40) has one end fixed to the end of the corrugated cylinder (39) away from the rubber bag (38) and fixedly connected to the outer side of the inner ring (37), and the other end penetrates the side of the cone close to the fixing frame (10), and the radial direction of the opening gradually shrinks in the direction close to the fixing frame (10); The injection and discharge parts are arranged on the curved pipe (40) and penetrate the cone cover (19).

10. The hydraulically controlled drive mechanism for the check butterfly valve according to claim 9, characterized in that: The injection molding parts include: A row pipe (47) has one end fixed to the other end of the bent pipe (40), and the opening radial direction of the row pipe (47) gradually shrinks in a direction close to the fixing frame (10); A filling pipe (48), one end of which is arranged on the curved pipe (40) and communicates with the curved pipe (40), and the other end of which is arranged to penetrate the cone cover (19); A filling cylinder (49) fixed to the other end of the filling pipe (48); A threaded cover (50) is threadedly connected to the outer side of the filling cylinder (49).

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