A deep-sea ball valve

Abstract

The present invention relates to the technical field of ball valves, and discloses a deep-sea ball valve, which solves the problem that the staff cannot timely complete the control of the pipeline after reaching the preset position. It includes a valve body, a control box is fixedly connected to the top of the valve body, a valve rod is rotatably connected in the valve body, a valve ball adapted to the valve body is fixedly connected to the bottom end of the valve rod, a worm gear is fixedly connected to the top end of the valve rod and is located in the control box, a worm meshing with the worm gear is rotatably connected in the control box, a fixed disk is fixedly installed on the worm, a first gear groove is formed in the fixed disk, a first gear is arranged in the first gear groove, a first rotating shaft is rotatably connected to the control box, and a reset unit adapted to the first gear is installed on the first rotating shaft; the staff controls the rotation of the worm through a manual switching structure, and the worm can drive the valve rod and the valve ball to rotate to the preset position through the worm gear, and then the staff replaces and repairs the driving mechanism, and can timely complete the control of the pipeline.

Description

Technical Field

[0001] The present invention belongs to the technical field of ball valves, and particularly relates to a deep-sea ball valve. Background Art

[0002] A deep-sea ball valve is a ball valve used for opening and closing pipeline lines in industries such as underwater manifolds, subsea pipeline terminals, and oil and gas transmission pipelines in offshore oil and gas engineering, and plays a key role in the safe transportation of subsea oil and gas. Generally, a deep-sea ball valve realizes remote control through an electric actuator;

[0003] However, it is worth considering that when the electric actuator fails, it is necessary for the staff to replace and repair the electric actuator. After the staff reaches the preset position, they cannot complete the control of the pipeline in a timely manner, which has certain limitations.

[0004] Therefore, in order to solve the above problems, there is a need for the emergence of a related facility that better meets the usage requirements. Summary of the Invention

[0005] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a deep-sea ball valve, which effectively solves the problem that the staff cannot complete the control of the pipeline in a timely manner after reaching the preset position in the above background art.

[0006] To achieve the above object, the present invention provides the following technical solution: A deep-sea ball valve includes a valve body. A control box is fixedly connected to the top of the valve body. A valve stem is rotatably connected inside the valve body. The bottom end of the valve stem is fixedly connected to a valve ball adapted to the valve body. The top end of the valve stem is fixedly connected to a worm gear located inside the control box. A worm is rotatably connected inside the control box and meshes with the worm gear. A fixed disk is fixedly installed on the worm. A first gear groove is formed on the fixed disk. A first gear is provided inside the first gear groove. A first rotating shaft is rotatably connected to the control box. A reset unit adapted to the first gear is installed on the first rotating shaft. A driving mechanism adapted to the first rotating shaft is installed on the control box. A manual switching structure adapted to the worm is installed on the control box.

[0007] Preferably, the manual switching structure includes a fixed shell fixedly installed outside the control box. An activity seat is provided inside the fixed shell. A rotating disk is rotatably connected to the activity seat. A second gear is fixedly installed on the worm and located inside the fixed shell. A second gear groove adapted to the second gear is formed on the rotating disk. A top rod penetrates through the worm. An avoidance hole adapted to the top rod is formed on the inner wall of the first gear groove. One end of the top rod is located inside the avoidance hole. The other end of the top rod penetrates through the second gear and is fixedly connected to the inner wall of the second gear groove. A magnetic attraction controller adapted to the activity seat is installed on the fixed shell. A second rotating shaft is rotatably connected to the activity seat. A handle located outside the fixed shell is fixedly installed on the second rotating shaft. A synchronization member adapted to the rotating disk is installed on the second rotating shaft.

[0008] Preferably, the synchronizing member includes a first sprocket fixedly mounted on the second rotating shaft, and the first sprocket is located inside the fixed housing. A second sprocket is fixedly sleeved outside the rotating disk, and the second sprocket and the first sprocket are connected by a chain.

[0009] Preferably, a support housing is fixedly connected to the outer wall of the fixed housing. The second rotating shaft penetrates through the support housing. A sealing sleeve is sleeved outside the second rotating shaft, and the sealing sleeve is fixedly connected to the outer wall of the support housing. A third gear is fixedly sleeved outside the second rotating shaft and is located inside the support housing. A gear ring meshing with the third gear is fixedly connected inside the support housing.

[0010] Preferably, the magnetic attraction controller includes an iron plate fixedly mounted on the side of the movable seat facing the control box. A magnet block is provided on the side of the iron plate away from the movable seat, and the magnet block is fixedly connected to the inner wall of the fixed housing. At least two guide posts penetrate through the movable seat, and the guide posts are fixedly connected to the inner wall of the fixed housing. The movable seat and the inner wall of the fixed housing are connected by a first compression spring.

[0011] Preferably, the reset unit includes a first slider fixedly mounted on the side of the first gear away from the worm. A first sliding groove is formed on the first rotating shaft. One end of the first slider away from the first gear is located inside the first sliding groove, and the side of the first slider away from the first gear and the inner wall of the first sliding groove are connected by a second compression spring.

[0012] Preferably, the driving mechanism includes a mounting seat arranged outside the control box. A waterproof motor is fixedly connected to the mounting seat. The output end of the waterproof motor is fixedly connected with a clamping block. One end of the first rotating shaft away from the first gear is located outside the control box, and a clamping groove adapted to the clamping block is formed on the first rotating shaft. The clamping block is located inside the clamping groove. The control box is equipped with a disassembly and assembly unit adapted to the mounting seat.

[0013] Preferably, the disassembly and assembly unit includes two support plates fixedly mounted on the outer wall of the control box. The support plates penetrate through the mounting seat. Support portions are respectively fixedly connected to both sides of the support plates. The side of the mounting seat facing the control box is in contact with the support portions. The mounting seat is equipped with a locator adapted to the support portions.

[0014] Preferably, the locator includes movable plates symmetrically arranged on both sides of the mounting seat. Two blocking blocks are respectively fixedly connected to the sides of the two movable plates close to each other, and the side of the support portion away from the mounting seat is in contact with the corresponding blocking block. Second sliding grooves are respectively formed on both sides of the mounting seat. Second sliders are slidably arranged inside the second sliding grooves. One side of the second slider is fixedly connected to the corresponding movable plate, and the other side of the second slider and the inner wall of the second sliding groove are connected by a tension spring.

[0015] Preferably, a pull ring is fixedly connected to the side of the movable plate away from the mounting seat.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The first rotating shaft is driven to rotate by the driving mechanism, and the first rotating shaft drives the first gear, the fixed plate and the worm to rotate synchronously through the reset unit. The worm drives the valve stem and the valve ball to rotate through the worm wheel, so that the control of the pipeline can be completed. When the driving mechanism on the ball valve fails and the staff comes to the preset position, the staff controls the first gear to disengage from the first gear groove through the manual switching structure, and releases the synchronous rotation relationship between the first rotating shaft and the worm. The staff then controls the worm to rotate through the manual switching structure, and the worm can drive the valve stem and the valve ball to rotate to the preset position through the worm wheel. Then the staff replaces and repairs the driving mechanism, and the control of the pipeline can be completed in time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0019] In the attached picture:

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 It is a schematic diagram of the structure inside the control box of the present invention;

[0022] Figure 3 It is a schematic diagram of the structure inside the fixed shell of the present invention;

[0023] Figure 4 It is a schematic structural diagram of a worm gear cutaway of the present invention;

[0024] Figure 5 It is a structural schematic diagram of the movable seat of the present invention;

[0025] Figure 6 It is a structural schematic diagram of the driving mechanism of the present invention;

[0026] Figure 7 It is a schematic structural diagram of the first rotating shaft of the present invention;

[0027] Figure 8 It is a schematic diagram of the structure of the movable plate and the mounting seat being separated according to the present invention.

[0028] In the figure: 1, valve body; 2, control box; 3, valve stem; 4, valve ball; 5, worm; 6, worm gear; 7, fixed disk; 8, first gear groove; 9, first rotating shaft; 10, first gear; 11, fixed housing; 12, movable seat; 13, second gear; 14, rotating disk; 15, second gear groove; 16, ejector rod; 17, avoidance hole; 18, second rotating shaft; 19, handle; 20, first sprocket; 21, second sprocket; 22, chain; 23, support housing; 24, third gear; 25, gear ring; 26, sealing sleeve; 27, iron plate; 28, magnet block; 29, guide post; 30, first compression spring; 31, first slider; 32, first chute; 33, second compression spring; 34, mounting seat; 35, waterproof motor; 36, fixture block; 37, fixture groove; 38, support plate; 39, support portion; 40, movable plate; 41, stop block; 42, second chute; 43, second slider; 44, tension spring; 45, pull ring. Specific embodiments

[0029] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0030] Embodiment 1, consists of Figure 1 , Figure 2 , Figure 4 and Figure 6The present invention includes a valve body 1, a control box 2 is fixedly connected to the top of the valve body 1, a valve stem 3 is rotatably connected inside the valve body 1, a valve ball 4 matched with the valve body 1 is fixedly connected to the bottom end of the valve stem 3, a worm wheel 6 located in the control box 2 is fixedly connected to the top end of the valve stem 3, a worm 5 meshing with the worm wheel 6 is rotatably connected inside the control box 2, a fixed disk 7 is fixedly installed on the worm 5, a first gear groove 8 is provided on the fixed disk 7, a first gear 10 is provided in the first gear groove 8, a first rotating shaft 9 is rotatably connected to the control box 2, a reset unit matched with the first gear 10 is installed on the first rotating shaft 9, a driving mechanism matched with the first rotating shaft 9 is installed on the control box 2, and a manual switching structure matched with the worm 5 is installed on the control box 2 ; The first rotating shaft 9 is driven to rotate by the driving mechanism, and the first rotating shaft 9 drives the first gear 10, the fixed disk 7 and the worm 5 to rotate synchronously through the reset unit, and the worm 5 drives the valve stem 3 and the valve ball 4 to rotate through the worm wheel 6, so as to complete the control of the pipeline. When the driving mechanism on the ball valve fails and the staff comes to the preset position, the staff controls the first gear 10 to disengage from the first gear groove 8 through the manual switching structure, and releases the synchronous rotation relationship between the first rotating shaft 9 and the worm 5. The staff then controls the worm 5 to rotate through the manual switching structure, and the worm 5 can drive the valve stem 3 and the valve ball 4 to rotate to the preset position through the worm wheel 6. Then the staff replaces and repairs the driving mechanism, and the control of the pipeline can be completed in time.

[0031] Embodiment 2, based on embodiment 1, Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 7Given that the manual switching structure includes a fixed shell 11 fixedly installed outside the control box 2. Inside the fixed shell 11, there is a movable seat 12. A rotating disk 14 is rotatably connected to the movable seat 12. A second gear 13 located inside the fixed shell 11 is fixedly installed on the worm 5. A second gear groove 15 adapted to the second gear 13 is formed on the rotating disk 14. A push rod 16 penetrates through the worm 5. An avoidance hole 17 adapted to the push rod 16 is formed on the inner wall of the first gear groove 8. One end of the push rod 16 is located inside the avoidance hole 17, and the other end of the push rod 16 penetrates through the second gear 13 and is fixedly connected to the inner wall of the second gear groove 15. The fixed shell 11 is equipped with a magnetic controller adapted to the movable seat 12. A second rotating shaft 18 is rotatably connected to the movable seat 12. A handle 19 located outside the fixed shell 11 is fixedly installed on the second rotating shaft 18. A synchronizing member adapted to the rotating disk 14 is installed on the second rotating shaft 18. The synchronizing member includes a first sprocket 20 fixedly installed on the second rotating shaft 18, and the first sprocket 20 is located inside the fixed shell 11. A second sprocket 21 is fixedly sleeved on the outside of the rotating disk 14, and the second sprocket 21 and the first sprocket 20 are connected by a chain 22. A support shell 23 is fixedly connected to the outer wall of the fixed shell 11. The second rotating shaft 18 penetrates through the support shell 23. A sealing sleeve 26 is sleeved on the outside of the second rotating shaft 18, and the sealing sleeve 26 is fixedly connected to the outer wall of the support shell 23. A third gear 24 located inside the support shell 23 is fixedly sleeved on the outside of the second rotating shaft 18. A gear ring 25 meshing with the third gear 24 is fixedly connected inside the support shell 23. The magnetic controller includes an iron plate 27 fixedly installed on the side of the movable seat 12 facing the control box 2. A magnet block 28 is provided on the side of the iron plate 27 away from the movable seat 12, and the magnet block 28 is fixedly connected to the inner wall of the fixed shell 11. At least two guide posts 29 penetrate through the movable seat 12, and the guide posts 29 are fixedly connected to the inner wall of the fixed shell 11. The movable seat 12 and the inner wall of the fixed shell 11 are connected by a first compression spring 30. The reset unit includes a first slider 31 fixedly installed on the side of the first gear 10 away from the worm 5. A first sliding groove 32 is formed on the first rotating shaft 9. One end of the first slider 31 away from the first gear 10 is located inside the first sliding groove 32, and the side of the first slider 31 away from the first gear 10 and the inner wall of the first sliding groove 32 are connected by a second compression spring 33;

[0032] The first compression spring 30 is initially in a compressed state. The first compression spring 30 exerts a pressure on the movable seat 12 so that the movable seat 12 contacts the inner wall of the fixed housing 11. At this time, the third gear 24 is located within the gear ring 25. Through the design of the gear ring 25 and the third gear 24, it is avoided that the second rotating shaft 18 rotates relative to the movable seat 12 due to non-human factors. Through the design of the sealing sleeve 26, the sealing performance at the penetration of the support housing 23 and the second rotating shaft 18 is increased. When a failure occurs in the driving mechanism on the ball valve and the staff arrives at the preset position, the staff drives the second rotating shaft 18 to slide relative to the support housing 23 through the handle 19. The second rotating shaft 18 drives the third gear 24 to disengage from the gear ring 25, and the second rotating shaft 18 pushes the movable seat 12 to slide relative to the fixed housing 11 and the guide post 29. The length of the first compression spring 30 becomes shorter, the iron plate 27 moves towards the magnet block 28, and the movable seat 12 drives the ejector rod 16 to slide relative to the worm 5 through the rotating disk 14. The ejector rod 16 pushes the first gear 10 out of the first gear groove 8, and the first gear 10 drives the first slider 31 to slide relative to the first chute 32. The second compression spring 33 is in a compressed state, and the synchronous rotation relationship between the worm 5 and the first rotating shaft 9 can be released. And the second gear 13 slides into the second gear groove 15, and the worm 5 and the rotating disk 14 can rotate synchronously. At this time, the iron plate 27 and the magnet block 28 are in contact, and the magnet block 28 exerts a magnetic force on the iron plate 27 to fix the movable seat 12 relative to the fixed housing 11, without the staff continuously applying a force towards the fixed housing 11 to the second rotating shaft 18 through the handle 19. At this time, the staff drives the handle 19 to rotate. The handle 19 drives the first sprocket 20 to rotate through the second rotating shaft 18. The first sprocket 20 drives the second sprocket 21 and the rotating disk 14 to rotate through the chain 22. The rotating disk 14 drives the worm 5 to rotate through the second gear 13. The worm 5 can drive the valve stem 3 and the valve ball 4 to rotate through the worm gear 6, and the control of the pipeline can be completed in time. When the replacement and maintenance of the driving mechanism are completed, the staff drives the handle 19 and the second rotating shaft 18 to move in the reverse direction so that the second rotating shaft 18 drives the iron plate 27 through the movable seat 12 to no longer contact the magnet block 28. The first compression spring 30 pushes the movable seat 12 to move in the reverse direction to the initial position. The rotating disk 14 and the ejector rod 16 move in the reverse direction so that the second gear 13 is no longer located in the second gear groove 15, and the second compression spring 33 pushes the first slider 31 and the first gear 10 to move so that the first gear 10 slides into the first gear groove 8. When the driving mechanism drives the first rotating shaft 9 to rotate again, the first rotating shaft 9 can drive the fixed disk 7 and the worm 5 to rotate synchronously again to complete the automatic control.

[0033] Embodiment 3, on the basis of Embodiment 1, by Figure 2 、 Figure 6 、 Figure 7 and Figure 8Given that the driving mechanism includes a mounting base 34 disposed outside the control box 2. A waterproof motor 35 is fixedly connected to the mounting base 34. The output end of the waterproof motor 35 is fixedly connected with a clamping block 36. One end of the first rotating shaft 9 away from the first gear 10 is located outside the control box 2, and a clamping groove 37 adapted to the clamping block 36 is formed on the first rotating shaft 9. The clamping block 36 is located in the clamping groove 37. The control box 2 is equipped with a disassembly and assembly unit adapted to the mounting base 34. The disassembly and assembly unit includes two support plates 38 fixedly mounted on the outer wall of the control box 2. The support plates 38 penetrate through the mounting base 34. Support portions 39 are fixedly connected to both sides of the support plates 38 respectively. One side of the mounting base 34 facing the control box 2 is in contact with the support portions 39. The mounting base 34 is equipped with a positioner adapted to the support portions 39. The positioner includes movable plates 40 symmetrically arranged on both sides of the mounting base 34. Two stoppers 41 are fixedly connected to the sides of the two movable plates 40 close to each other respectively. And the side of the support portion 39 away from the mounting base 34 is in contact with the corresponding stopper 41. Second sliding grooves 42 are formed on both sides of the mounting base 34 respectively. Second sliding blocks 43 are slidably arranged in the second sliding grooves 42. One side of the second sliding block 43 is fixedly connected to the corresponding movable plate 40. The other side of the second sliding block 43 is connected to the inner wall of the second sliding groove 42 through a tension spring 44. A pull ring 45 is fixedly connected to the side of the movable plate 40 away from the mounting base 34;

[0034] By driving the clamping block 36 to rotate through the waterproof motor 35, the clamping block 36 can drive the first rotating shaft 9 to rotate synchronously. Since the support plate 38 penetrates through the mounting base 34 and the stopper 41 and the mounting base 34 clamp the support portion 39, the mounting base 34 can be fixed relative to the support plate 38 and the control box 2. When the waterproof motor 35 needs to be replaced and repaired, the staff drives the movable plate 40 to move away from the mounting base 34 through the pull ring 45. The stopper 41 is no longer located on the side of the support portion 39 away from the mounting base 34, and the movable plate 40 drives the second sliding block 43 to slide relative to the second sliding groove 42. The tension spring 44 is in a stretched state, releasing the limitation of the position of the mounting base 34. The staff drives the mounting base 34 to move away from the control box 2 so that the support plate 38 disengages from the mounting base 34 and the clamping block 36 disengages from the clamping groove 37, and the disassembly of the mounting base 34 and the waterproof motor 35 can be completed, facilitating replacement and repair.

[0035] Working principle: The first rotating shaft 9 is driven to rotate by the driving mechanism, and the first rotating shaft 9 drives the first gear 10, the fixed plate 7 and the worm 5 to rotate synchronously through the reset unit. The worm 5 drives the valve stem 3 and the valve ball 4 to rotate through the worm wheel 6, so as to complete the control of the pipeline. When the driving mechanism on the ball valve fails and the staff comes to the preset position, the staff controls the first gear 10 to disengage from the first gear groove 8 through the manual switching structure, and releases the synchronous rotation relationship between the first rotating shaft 9 and the worm 5. The staff then controls the worm 5 to rotate through the manual switching structure, and the worm 5 can drive the valve stem 3 and the valve ball 4 to rotate to the preset position through the worm wheel 6. Then the staff replaces and repairs the driving mechanism, and can complete the control of the pipeline in time.

[0036] The first compression spring 30 is initially in a compressed state. The first compression spring 30 exerts a pressure on the movable seat 12 so that the movable seat 12 contacts the inner wall of the fixed housing 11. At this time, the third gear 24 is located within the toothed ring 25. Through the design of the toothed ring 25 and the third gear 24, it is avoided that the second rotating shaft 18 rotates relative to the movable seat 12 due to non-human factors. Through the design of the sealing sleeve 26, the sealing performance at the penetration of the support housing 23 and the second rotating shaft 18 is increased. When a failure occurs in the driving mechanism on the ball valve and the staff arrives at the preset position, the staff drives the second rotating shaft 18 to slide relative to the support housing 23 through the handle 19. The second rotating shaft 18 drives the third gear 24 to disengage from the toothed ring 25, and the second rotating shaft 18 pushes the movable seat 12 to slide relative to the fixed housing 11 and the guide post 29. The length of the first compression spring 30 becomes shorter, the iron plate 27 moves towards the magnet block 28, and the movable seat 12 drives the ejector rod 16 to slide relative to the worm 5 through the rotating disk 14. The ejector rod 16 pushes the first gear 10 out of the first gear groove 8, and the first gear 10 drives the first slider 31 to slide relative to the first chute 32. The second compression spring 33 is in a compressed state, and the synchronous rotation relationship between the worm 5 and the first rotating shaft 9 can be released. And the second gear 13 slides into the second gear groove 15, and the worm 5 and the rotating disk 14 can rotate synchronously. At this time, the iron plate 27 and the magnet block 28 are in contact, and the magnet block 28 exerts a magnetic force on the iron plate 27 to fix the movable seat 12 relative to the fixed housing 11, and it is not necessary for the staff to continuously apply a force towards the fixed housing 11 to the second rotating shaft 18 through the handle 19. At this time, the staff drives the handle 19 to rotate. The handle 19 drives the first sprocket 20 to rotate through the second rotating shaft 18. The first sprocket 20 drives the second sprocket 21 and the rotating disk 14 to rotate through the chain 22. The rotating disk 14 drives the worm 5 to rotate through the second gear 13. The worm 5 can drive the valve rod 3 and the valve ball 4 to rotate through the worm gear 6, and the control of the pipeline can be completed in time. When the replacement and maintenance of the driving mechanism are completed, the staff drives the handle 19 and the second rotating shaft 18 to move in the reverse direction so that the second rotating shaft 18 drives the iron plate 27 through the movable seat 12 to no longer contact the magnet block 28. The first compression spring 30 pushes the movable seat 12 to move in the reverse direction to the initial position. The rotating disk 14 and the ejector rod 16 move in the reverse direction so that the second gear 13 is no longer located within the second gear groove 15, and the second compression spring 33 pushes the first slider 31 and the first gear 10 to move so that the first gear 10 slides into the first gear groove 8. When the driving mechanism drives the first rotating shaft 9 to rotate again, the first rotating shaft 9 can drive the fixed disk 7 and the worm 5 to rotate synchronously again through the first gear 10 to complete the automatic control;

[0037] The waterproof motor 35 drives the rotating block 36 to rotate. The rotating block 36 can drive the first rotating shaft 9 to rotate synchronously. Since the support plate 38 penetrates through the mounting seat 34, and the stopper 41 and the mounting seat 34 clamp the supporting portion 39, the mounting seat 34 can be fixed relative to the support plate 38 and the control box 2. When it is necessary to replace and repair the waterproof motor 35, the staff drives the movable plate 40 to move away from the mounting seat 34 through the pull ring 45. The stopper 41 is no longer located on the side of the supporting portion 39 away from the mounting seat 34, and the movable plate 40 drives the second slider 43 to slide relative to the second chute 42. The tension spring 44 is in a stretched state, releasing the limitation on the position of the mounting seat 34. The staff drives the mounting seat 34 to move away from the control box 2, so that the support plate 38 is separated from the mounting seat 34, and the rotating block 36 is separated from the card slot 37, and the removal of the mounting seat 34 and the waterproof motor 35 can be completed, which is convenient for replacement and repair.

[0038] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variation thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0039] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A deep-sea ball valve, comprising a valve body (1), characterized in that: The top of the valve body (1) is fixedly connected to a control box (2), a valve stem (3) is rotatably connected inside the valve body (1), a valve ball (4) matched with the valve body (1) is fixedly connected to the bottom end of the valve stem (3), a worm wheel (6) located inside the control box (2) is fixedly connected to the top end of the valve stem (3), a worm (5) meshing with the worm wheel (6) is rotatably connected inside the control box (2), a fixed disk (7) is fixedly installed on the worm wheel (5), a first gear groove (8) is provided on the fixed disk (7), a first gear (10) is provided in the first gear groove (8), a first rotating shaft (9) is rotatably connected to the control box (2), a reset unit matched with the first gear (10) is installed on the first rotating shaft (9), a driving mechanism matched with the first rotating shaft (9) is installed on the control box (2), and a manual switching structure matched with the worm wheel (5) is installed on the control box (2); The manual switching structure comprises a fixed shell (11) fixedly mounted on the outside of a control box (2), a movable seat (12) being arranged inside the fixed shell (11), a rotating disk (14) being rotatably connected to the movable seat (12), a second gear (13) located inside the fixed shell (11) being fixedly mounted on the worm (5), a second gear groove (15) matching with the second gear (13) being provided on the rotating disk (14), a push rod (16) penetrating the worm (5), and an avoidance hole (16) matching with the push rod (16) being provided on the inner wall of the first gear groove (8). 17), one end of the push rod (16) is located in the avoidance hole (17), the other end of the push rod (16) passes through the second gear (13), and the push rod (16) is fixedly connected to the inner wall of the second gear groove (15), the fixed shell (11) is equipped with a magnetic controller adapted to the movable seat (12), the movable seat (12) is rotatably connected to the second rotating shaft (18), the second rotating shaft (18) is fixedly equipped with a handle (19) located outside the fixed shell (11), and the second rotating shaft (18) is equipped with a synchronizing member adapted to the rotating disk (14); A support shell (23) is fixedly connected to the outer wall of the fixed shell (11); the second rotating shaft (18) passes through the support shell (23); a sealing sleeve (26) is provided on the outer sleeve of the second rotating shaft (18); and the sealing sleeve (26) is fixedly connected to the outer wall of the support shell (23); a third gear (24) located inside the support shell (23) is provided on the outer fixed sleeve of the second rotating shaft (18); and a gear ring (25) meshing with the third gear (24) is fixedly connected inside the support shell (23).

2. A deep sea ball valve according to claim 1, characterized in that: The synchronous component comprises a first sprocket (20) fixedly mounted on the second rotating shaft (18), the first sprocket (20) being located in the fixed housing (11), the outer fixed sleeve of the rotating disk (14) being provided with a second sprocket (21), and the second sprocket (21) and the first sprocket (20) being connected via a chain (22).

3. A deep sea ball valve according to claim 1, characterized in that: The magnetic controller comprises an iron plate (27) fixedly mounted on a side of the movable seat (12) facing the control box (2); a magnet block (28) is provided on a side of the iron plate (27) away from the movable seat (12); the magnet block (28) is fixedly connected to the inner wall of the fixed shell (11); at least two guide columns (29) pass through the movable seat (12); the guide columns (29) are fixedly connected to the inner wall of the fixed shell (11); and the movable seat (12) and the inner wall of the fixed shell (11) are connected via a first compression spring (30).

4. A deep sea ball valve according to claim 1, characterized in that: The reset unit comprises a first slider (31) fixedly mounted on a side of the first gear (10) away from the worm (5); a first slide groove (32) is provided on the first rotating shaft (9); an end of the first slider (31) away from the first gear (10) is located in the first slide groove (32); and a side of the first slider (31) away from the first gear (10) and an inner wall of the first slide groove (32) are connected via a second compression spring (33).

5. A deep sea ball valve according to claim 1, characterized in that: The driving mechanism comprises a mounting seat (34) arranged outside the control box (2); a waterproof motor (35) is fixedly connected to the mounting seat (34); a clamping block (36) is fixedly connected to the output end of the waterproof motor (35); an end of the first rotating shaft (9) away from the first gear (10) is located outside the control box (2); a clamping groove (37) adapted to the clamping block (36) is formed on the first rotating shaft (9); the clamping block (36) is located in the clamping groove (37); and a disassembly unit adapted to the mounting seat (34) is installed on the control box (2).

6. A deep sea ball valve according to claim 5, characterized in that: The disassembly and assembly unit comprises two support plates (38) fixedly mounted on the outer wall of the control box (2), the support plates (38) passing through the mounting seat (34), the two sides of the support plates (38) being fixedly connected with support portions (39) respectively, the side of the mounting seat (34) facing the control box (2) being in contact with the support portion (39), and the mounting seat (34) being mounted with a positioner matched with the support portion (39).

7. A deep sea ball valve according to claim 6, characterized in that: The positioner comprises movable plates (40) symmetrically arranged on both sides of the mounting seat (34), the two movable plates (40) are fixedly connected to two blocks (41) on the sides close to each other, and the side of the support portion (39) away from the mounting seat (34) contacts the corresponding block (41), and the mounting seat (34) is provided with a second slide groove (42) on both sides, and a second slider (43) is slidably arranged in the second slide groove (42), one side of the second slider (43) is fixedly connected to the corresponding movable plate (40), and the other side of the second slider (43) is connected to the inner wall of the second slide groove (42) via a tension spring (44).

8. A deep sea ball valve according to claim 7, characterized in that: A pull ring (45) is fixedly connected to a side of the movable plate (40) away from the mounting seat (34).

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