Deep sea ball valve

Abstract

The invention relates to the technical field of ball valves, and discloses a deep sea ball valve which solves the problem that after a worker reaches a preset position, a pipeline cannot be controlled in time. The deep sea ball valve comprises a valve body, a control box is fixedly connected to the top of the valve body, a valve rod is rotationally connected into the valve body, and a valve ball matched with the valve body is fixedly connected to the bottom end of the valve rod; the top end of the valve rod is fixedly connected with a worm gear located in the control box, a worm meshed with the worm gear is rotationally connected into the control box, a fixing disc is fixedly installed on the worm, a first gear groove is formed in the fixing disc, a first gear is arranged in the first gear groove, and a first rotating shaft is rotationally connected to the control box. The first rotating shaft is provided with a reset unit matched with the first gear. A worker controls the worm to rotate through the manual switching structure, the worm can drive the valve rod and the valve ball to rotate to the preset position through the worm gear, then the worker replaces and overhauls the driving mechanism, and control over a pipeline can be completed in time.

Description

Technical Field

[0001] The invention belongs to the technical field of ball valves, in particular to a deep-sea ball valve. Background Art

[0002] Deep-sea ball valve is a ball valve used for opening and closing pipelines in industries such as underwater manifolds, submarine pipeline terminals and oil and gas transmission pipelines in offshore oil and gas projects. It plays a key role in the safe transportation of submarine oil and gas. Deep-sea ball valves are generally remotely controlled by electric actuators. However, it is worth considering that when the electric actuator fails, the staff is required to replace and repair the electric actuator. After the staff arrives at the preset position, they cannot complete the control of the pipeline in time, which has certain limitations.

[0003] Therefore, in order to solve the above problems, a related facility that better meets the usage requirements is needed. Summary of the invention

[0004] 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 in the above background technology that the staff cannot complete the control of the pipeline in time after reaching the preset position.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a deep-sea ball valve, comprising a valve body, a control box is fixedly connected to the top of the valve body, a valve stem is rotatably connected in the valve body, a valve ball matched with the valve body is fixedly connected to the bottom end of the valve stem, a worm gear located in the control box is fixedly connected to the top of the valve stem, a worm meshing with the worm gear is rotatably connected in the control box, a fixed disk is fixedly installed on the worm gear, a first gear groove is provided on the fixed disk, a first gear groove is provided in the first gear groove, a first rotating shaft is rotatably connected to the control box, a reset unit matched with the first gear is installed on the first rotating shaft, a driving mechanism matched with the first rotating shaft is installed in the control box, and a manual switching structure matched with the worm is installed in the control box.

[0006] Preferably, the manual switching structure includes a fixed shell fixedly mounted on the outside of the control box, a movable seat is provided in the fixed shell, a rotating disk is rotatably connected to the movable seat, a second gear located in the fixed shell is fixedly mounted on the worm, a second gear groove matching the second gear is provided on the rotating disk, a push rod is passed through the worm, an avoidance hole matching the push rod is provided on the inner wall of the first gear groove, one end of the push rod is located in the avoidance hole, the other end of the push rod passes through the second gear, and the push rod is fixedly connected to the inner wall of the second gear groove, a magnetic suction controller matching the movable seat is installed on the fixed shell, a second rotating shaft is rotatably connected to the movable seat, a handle located outside the fixed shell is fixedly mounted on the second rotating shaft, and a synchronous part matching the rotating disk is installed on the second rotating shaft.

[0007] Preferably, the synchronizer comprises a first sprocket fixedly mounted on the second rotating shaft, and the first sprocket is located in a fixed shell, an outer fixed sleeve of the rotating disk is provided with a second sprocket, and the second sprocket and the first sprocket are connected by a chain.

[0008] Preferably, a supporting shell is fixedly connected to the outer wall of the fixed shell, the second rotating shaft passes through the supporting shell, the outer sleeve of the second rotating shaft is provided with a sealing sleeve, and the sealing sleeve and the outer wall of the supporting shell are fixedly connected, the outer fixed sleeve of the second rotating shaft is provided with a third gear located in the supporting shell, and a gear ring meshing with the third gear is fixedly connected in the supporting shell.

[0009] Preferably, the magnetic 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 shell, at least two guide columns pass through the movable seat, the guide columns are fixedly connected to the inner wall of the fixed shell, and the movable seat and the inner wall of the fixed shell are connected by a first compression spring.

[0010] 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 provided on the first rotating shaft, an end of the first slider away from the first gear is located in 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.

[0011] Preferably, the driving mechanism includes a mounting base arranged outside the control box, a waterproof motor is fixedly connected to the mounting base, a clamping block is fixedly connected to the output end of the waterproof motor, an end of the first rotating shaft away from the first gear is located outside the control box, and a clamping slot matching the clamping block is opened on the first rotating shaft, the clamping block is located in the clamping slot, and the control box is equipped with a disassembly and assembly unit matching the mounting base.

[0012] Preferably, the disassembly and assembly unit includes two support plates fixedly mounted on the outer wall of the control box, the support plates pass through the mounting seat, both sides of the support plates are respectively fixedly connected with support parts, the mounting seat is in contact with the support part on one side facing the control box, and the mounting seat is equipped with a locator adapted to the support part.

[0013] Preferably, the positioner includes movable plates symmetrically arranged on both sides of the mounting seat, two blocks are fixedly connected to the sides of the two movable plates that are close to each other, and the side of the support part away from the mounting seat is in contact with the corresponding block, second sliding grooves are respectively provided on both sides of the mounting seat, a second slider is slidably provided in the second sliding groove, one side of the second slider is fixedly connected to the corresponding movable plate, and the other side of the second slider is connected to the inner wall of the second sliding groove by a tension spring.

[0014] Preferably, a pull ring is fixedly connected to a side of the movable plate away from the mounting seat.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 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

[0016] 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.

[0017] In the attached picture: Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the structure inside the control box of the present invention; Figure 3 It is a schematic diagram of the structure inside the fixed shell of the present invention; Figure 4 It is a schematic structural diagram of a worm gear cutaway of the present invention; Figure 5 It is a structural schematic diagram of the movable seat of the present invention; Figure 6 It is a structural schematic diagram of the driving mechanism of the present invention; Figure 7 It is a schematic structural diagram of the first rotating shaft of the present invention; 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.

[0018] In the figure: 1, valve body; 2, control box; 3, valve stem; 4, valve ball; 5, worm; 6, worm wheel; 7, fixed plate; 8, first gear groove; 9, first rotating shaft; 10, first gear; 11, fixed shell; 12, movable seat; 13, second gear; 14, rotating plate; 15, second gear groove; 16, push rod; 17, avoidance hole; 18, second rotating shaft; 19, handle; 20, first sprocket; 21, second sprocket; 22, chain; 23, support shell; 24 , the third gear; 25, the gear ring; 26, the sealing sleeve; 27, the iron plate; 28, the magnet block; 29, the guide column; 30, the first compression spring; 31, the first slider; 32, the first slide groove; 33, the second compression spring; 34, the mounting seat; 35, the waterproof motor; 36, the block; 37, the slot; 38, the support plate; 39, the support part; 40, the movable plate; 41, the block; 42, the second slide groove; 43, the second slider; 44, the tension spring; 45, the pull ring. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0020] Embodiment 1, by 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.

[0021] Embodiment 2, based on embodiment 1, Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 7The manual switching structure includes a fixed shell 11 fixedly mounted on the outside of the control box 2, a movable seat 12 is arranged in the fixed shell 11, a rotating disk 14 is rotatably connected to the movable seat 12, a second gear 13 located in the fixed shell 11 is fixedly mounted on the worm 5, a second gear groove 15 matched with the second gear 13 is provided on the rotating disk 14, a push rod 16 is passed through the worm 5, an avoidance hole 17 matched with the push rod 16 is provided on the inner wall of the first gear groove 8, 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 connected to the second gear 13. The inner wall of the second gear groove 15 is fixedly connected, the fixed shell 11 is equipped with a magnetic controller adapted to the movable seat 12, the movable seat 12 is rotatably connected with a second rotating shaft 18, the second rotating shaft 18 is fixedly equipped with a handle 19 located outside the fixed shell 11, the second rotating shaft 18 is equipped with a synchronous member adapted to the rotating disk 14, the synchronous member includes a first sprocket 20 fixedly installed on the second rotating shaft 18, and the first sprocket 20 is located in the fixed shell 11, the outer fixed sleeve of the rotating disk 14 is provided with a second sprocket 21, and the second sprocket 21 and the first sprocket 20 are connected by a chain 22, and the fixed 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, the outer fixed sleeve of the second rotating shaft 18 is provided with a third gear 24 located in the support shell 23, and a gear ring 25 meshing with the third gear 24 is fixedly connected in the support shell 23, and the magnetic controller includes an iron plate 27 fixedly installed on the side of the movable seat 12 facing the control box 2, and 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 and the fixed shell The movable seat 12 is fixedly connected to the inner wall of the fixed shell 11, at least two guide columns 29 are passed 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 is connected to the inner wall of the fixed shell 11 through a first compression spring 30, the reset unit includes a first slider 31 fixedly mounted on the side of the first gear 10 away from the worm 5, a first slide groove 32 is opened 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 the inner wall of the first slide groove 32 are connected through a second compression spring 33; The first compression spring 30 is initially in a compressed state, and the first compression spring 30 applies pressure to the movable seat 12 to make the movable seat 12 contact with the inner wall of the fixed shell 11, and at this time the third gear 24 is located in the gear ring 25. The design of the gear ring 25 and the third gear 24 prevents the second shaft 18 from rotating relative to the movable seat 12 due to non-human factors. The design of the sealing sleeve 26 increases the sealing performance of the penetration point between the support shell 23 and the second shaft 18. When the driving mechanism on the ball valve fails and the staff reaches the preset position, the staff drives the second shaft 18 to slide relative to the support shell 23 through the handle 19, and the second shaft 18 drives the third gear 24 disengages from the gear ring 25, and the second rotating shaft 18 pushes the movable seat 12 to slide relative to the fixed shell 11 and the guide column 29, the length of the first compression spring 30 becomes shorter, the iron plate 27 moves toward the magnet block 28, and the movable seat 12 drives the push rod 16 to slide relative to the worm 5 through the rotating disk 14, the push rod 16 pushes the first gear 10 to disengage from the first gear groove 8, and the first gear 10 drives the first slider 31 to slide relative to the first slide groove 32, the second compression spring 33 is in a compressed state, 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, the worm 5 and the rotating disk 14 can rotate synchronously, at this time, the iron plate 27 moves toward the magnet block 28, and the movable seat 12 drives the push rod 16 to slide relative to the worm 5 through the rotating disk 14, the push rod 16 pushes the first gear 10 to disengage from the first gear groove 8, and the first gear 10 drives the first slider 31 to slide relative to the first slide groove 32, the second compression spring 33 is in a compressed state, 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, the worm 5 and the rotating disk 14 can rotate synchronously, The plate 27 is in contact with the magnet block 28, and the magnet block 28 applies magnetic force to the iron plate 27 to fix the movable seat 12 relative to the fixed shell 11. The staff does not need to continuously apply force toward the fixed shell 11 to the second rotating shaft 18 through the handle 19. At this time, the staff drives the handle 19 to rotate, and 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 control the rotation of the valve stem 3 and the valve ball 4 through the worm wheel 6, and the control of the pipeline can be completed in time. When the drive mechanism is replaced and overhauled, the work The personnel drives the handle 19 and the second rotating shaft 18 to move in the opposite 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, and the first compression spring 30 pushes the movable seat 12 to move in the opposite direction to the initial position, and the rotating disk 14 and the push rod 16 move in the opposite 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, and when the driving mechanism drives the first rotating shaft 9 to rotate again, the first rotating shaft 9 can again drive the fixed disk 7 and the worm 5 to rotate synchronously through the first gear 10 to complete the automatic control.

[0022] Embodiment 3, based on embodiment 1, Figure 2 , Figure 6 , Figure 7 and Figure 8The driving mechanism includes a mounting seat 34 arranged outside the control box 2, a waterproof motor 35 is fixedly connected to the mounting seat 34, a block 36 is fixedly connected to the output end of the waterproof motor 35, the end of the first rotating shaft 9 away from the first gear 10 is located outside the control box 2, and a slot 37 adapted to the block 36 is opened on the first rotating shaft 9, the block 36 is located in the slot 37, the control box 2 is equipped with a disassembly unit adapted to the mounting seat 34, the disassembly unit includes two support plates 38 fixedly installed on the outer wall of the control box 2, the support plate 38 passes through the mounting seat 34, and the two sides of the support plate 38 are respectively fixedly connected with support parts 39, and the mounting seat 34 faces one side of the control box 2 and the support part 39 are in contact with each other, and the mounting seat 34 is equipped with a positioner adapted to the support portion 39, and the positioner includes movable plates 40 symmetrically arranged on both sides of the mounting seat 34, and the two movable plates 40 are fixedly connected to two stoppers 41 on the sides close to each other, and the side of the support portion 39 away from the mounting seat 34 is in contact with the corresponding stopper 41, and the mounting seat 34 is respectively 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 by a tension spring 44, and the side of the movable plate 40 away from the mounting seat 34 is fixedly connected with a pull ring 45; The waterproof motor 35 drives the block 36 to rotate, and the block 36 can drive the first rotating shaft 9 to rotate synchronously. Since the support plate 38 passes through the mounting seat 34, and the stopper 41 and the mounting seat 34 clamp the support portion 39, the mounting seat 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 in the direction away from the mounting seat 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 seat 34, and the movable plate 40 drives the second slider 43 to slide relative to the second slide groove 42. The tension spring 44 is in a stretched state, and the limitation on the position of the mounting seat 34 is released. The staff drives the mounting seat 34 to move in the direction away from the control box 2, so that the support plate 38 is separated from the mounting seat 34, and the block 36 is separated from the slot 37, and the mounting seat 34 and the waterproof motor 35 can be removed, which is convenient for replacement and maintenance.

[0023] 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. The first compression spring 30 is initially in a compressed state, and the first compression spring 30 applies pressure to the movable seat 12 to make the movable seat 12 contact with the inner wall of the fixed shell 11, and at this time the third gear 24 is located in the gear ring 25. The design of the gear ring 25 and the third gear 24 prevents the second shaft 18 from rotating relative to the movable seat 12 due to non-human factors. The design of the sealing sleeve 26 increases the sealing performance of the penetration point between the support shell 23 and the second shaft 18. When the driving mechanism on the ball valve fails and the staff reaches the preset position, the staff drives the second shaft 18 to slide relative to the support shell 23 through the handle 19, and the second shaft 18 drives the third gear 24 disengages from the gear ring 25, and the second rotating shaft 18 pushes the movable seat 12 to slide relative to the fixed shell 11 and the guide column 29, the length of the first compression spring 30 becomes shorter, the iron plate 27 moves toward the magnet block 28, and the movable seat 12 drives the push rod 16 to slide relative to the worm 5 through the rotating disk 14, the push rod 16 pushes the first gear 10 to disengage from the first gear groove 8, and the first gear 10 drives the first slider 31 to slide relative to the first slide groove 32, the second compression spring 33 is in a compressed state, 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, the worm 5 and the rotating disk 14 can rotate synchronously, at this time, the iron plate 27 moves toward the magnet block 28, and the movable seat 12 drives the push rod 16 to slide relative to the worm 5 through the rotating disk 14, the push rod 16 pushes the first gear 10 to disengage from the first gear groove 8, and the first gear 10 drives the first slider 31 to slide relative to the first slide groove 32, the second compression spring 33 is in a compressed state, 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, the worm 5 and the rotating disk 14 can rotate synchronously, The plate 27 is in contact with the magnet block 28, and the magnet block 28 applies magnetic force to the iron plate 27 to fix the movable seat 12 relative to the fixed shell 11. The staff does not need to continuously apply force toward the fixed shell 11 to the second rotating shaft 18 through the handle 19. At this time, the staff drives the handle 19 to rotate, and 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 control the rotation of the valve stem 3 and the valve ball 4 through the worm wheel 6, and the control of the pipeline can be completed in time. When the drive mechanism is replaced and overhauled, the work The operator drives the handle 19 and the second rotating shaft 18 to move in the opposite 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, and the first compression spring 30 pushes the movable seat 12 to move in the opposite direction to the initial position, and the rotating disk 14 and the push rod 16 move in the opposite 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, and 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, thereby completing the automatic control; The waterproof motor 35 drives the block 36 to rotate, and the block 36 can drive the first rotating shaft 9 to rotate synchronously. Since the support plate 38 passes through the mounting seat 34, and the stopper 41 and the mounting seat 34 clamp the support portion 39, the mounting seat 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 in the direction away from the mounting seat 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 seat 34, and the movable plate 40 drives the second slider 43 to slide relative to the second slide groove 42. The tension spring 44 is in a stretched state, and the limitation on the position of the mounting seat 34 is released. The staff drives the mounting seat 34 to move in the direction away from the control box 2, so that the support plate 38 is separated from the mounting seat 34, and the block 36 is separated from the slot 37, and the mounting seat 34 and the waterproof motor 35 can be removed, which is convenient for replacement and maintenance.

[0024] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0025] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that 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).

2. A deep sea ball valve according to claim 1, characterized in that: The manual switching structure comprises a fixed shell (11) fixedly mounted on the outside of the control box (2), a movable seat (12) being arranged in the fixed shell (11), a rotating disk (14) being rotatably connected to the movable seat (12), a second gear (13) located in 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 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).

3. A deep sea ball valve according to claim 2, 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).

4. A deep sea ball valve according to claim 2, characterized in that: 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).

5. A deep sea ball valve according to claim 2, 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).

6. 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).

7. 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).

8. A deep sea ball valve according to claim 7, 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).

9. A deep sea ball valve according to claim 8, 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).

10. A deep sea ball valve according to claim 9, 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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