Underwater ball valve capable of being remotely operated by surface pull cable

Abstract

The application discloses a kind of underwater ball valves of water surface remote cable control in the technical field of offshore wind power foundation grouting control, including valve body mechanism, control mechanism and pull handle mechanism;Valve body mechanism includes valve body, spherical valve core and valve stem, control mechanism includes shell, runner, vertical pull rod and reset spring, pull handle mechanism includes first pull handle and second pull handle;Spherical valve core is rotatably arranged in valve cavity;One end of valve stem is fixedly connected with spherical valve core, the other end penetrates valve body and is fixedly connected with runner, first pull handle and second pull handle in circumference;Runner is rotatably arranged in the mounting cavity of shell, and at least two stop grooves are provided on runner;Vertical pull rod is arranged in shell in a lifting manner, and the bottom end of vertical pull rod is fixedly connected with stop block which is inserted and stopped in cooperation with stop groove.The underwater ball valve of the application can replace diver operation, improve construction safety and convenience.

Description

Technical Field

[0001] The present invention relates to the technical field of offshore wind power foundation grouting control, and in particular to an underwater ball valve that can be controlled by a remote cable on the water surface. Background Art

[0002] The suction tube jacket foundation is one of the offshore wind power foundations. After the suction tube jacket foundation is sunk into place, the suction tube needs to be pumped out of negative pressure and grouting is carried out. When pumping out negative pressure and grouting the suction tube, the valves on multiple compartments of the suction tube need to be opened and closed.

[0003] The existing operation method is generally manual operation, which means that divers need to dive to the seabed to perform underwater operations to open or close the valves on the grouting pipes; but since the grouting operation lasts for a long time, divers need to be on standby underwater for a long time, resulting in high underwater construction costs. Summary of the Invention

[0004] In view of this, the object of the present invention is to provide an underwater ball valve that can be controlled by a remote cable on the water surface, so as to solve the technical problem of high construction cost of underwater grouting operation of existing suction tube jacket foundation.

[0005] The technical solution adopted by the present invention is: an underwater ball valve that can be remotely controlled by a cable on the water surface, comprising: a valve body mechanism, a control mechanism and a handle mechanism arranged in sequence along the horizontal direction;

[0006] The valve body mechanism includes a valve body, a spherical valve core and a valve stem. The top end of the valve body is provided with a liquid inlet pipe communicating with the valve cavity, and the bottom end of the valve body is provided with a liquid outlet pipe communicating with the valve cavity. The spherical valve core is rotatably arranged in the valve cavity. One end of the valve stem is fixedly connected to the spherical valve core, and the other end of the valve stem extends horizontally and passes through the valve body and the control mechanism.

[0007] The control mechanism includes a shell, a rotating wheel, a vertical pull rod and a return spring, the shell is fixedly arranged on one side of the valve body; the rotating wheel is rotatably arranged in the installation cavity of the shell and is fixedly connected to the valve stem in the circumferential direction, and at least two stop grooves are provided on the rotating wheel along the circumferential direction; the vertical pull rod is liftably arranged in the installation cavity of the shell, and the top end of the vertical pull rod extends upward and passes through the shell, and the bottom end of the vertical pull rod is fixedly connected to a stop block; the return spring is transmission-connected to the vertical pull rod so that the stop block can move downward to form a plug-in stop fit with the stop groove and hinder the circumferential rotation of the rotating wheel;

[0008] The handle mechanism includes a first handle and a second handle, and the rotating ends of the first handle and the second handle are circumferentially fixedly connected to the valve stem and are used to drive the valve stem to rotate.

[0009] Preferably, the cross-section of the stop block is an isosceles trapezoid that is larger at the top and smaller at the bottom, and two stop blocks are provided on the outer circumferential surface of the wheel along the circumferential direction, and a stop groove that cooperates with the stop block is provided in the middle of the stop block, and on the projection surface perpendicular to the axis direction of the valve stem, the projections of the two stop grooves coincide with the projections of the first pull handle and the second pull handle one by one.

[0010] Preferably, the included angle between the first handle and the second handle is 90°.

[0011] Preferably, a stop surface is provided on the inner wall of the shell, which forms a stop fit with the stop block and enables the stop groove to be located directly below the stop block.

[0012] Preferably, the shell is provided with a partition plate that divides the installation cavity into an upper chamber and a lower chamber, the partition plate is provided with a through hole connecting the upper chamber and the lower chamber, and the through hole is provided with a pressure membrane that balances the internal pressure of the upper chamber and the lower chamber.

[0013] Preferably, the lower chamber is filled with lubricating oil, and the bottom of the shell is provided with an oil filling hole connected with the lower chamber, and a hole plug is installed in the oil filling hole.

[0014] Preferably, the middle part of the vertical pull rod is sealed and slidably connected to the partition plate, the top fixed sleeve of the vertical pull rod is provided with a conical rubber sleeve that is larger at the top and smaller at the bottom, and a limiting ring is fixedly connected to the vertical pull rod, and the limiting ring is located between the partition plate and the conical rubber sleeve.

[0015] Preferably, the top end of the vertical pull rod is connected to a pulling rope, and the pulling rope is provided with a pulling overload separator.

[0016] Preferably, the return spring is a compression spring that is sleeved on the vertical pull rod and abuts between the partition plate and the stop block.

[0017] Preferably, the pulling end of the first pull handle is connected to a valve opening pull rope, and the valve opening pull rope is provided with a valve opening overload separator; the pulling end of the second pull handle is connected to a valve closing pull rope, and the valve closing pull rope is provided with a valve closing overload separator.

[0018] Beneficial effects of the present invention:

[0019] The present invention fixes one end of the valve stem to the spherical valve core in the inner cavity of the valve body, so that the other end of the valve stem passes through the valve body in the horizontal direction and is fixedly connected to the rotary wheel, the first pull handle and the second pull handle. The spherical valve core can be driven to rotate by driving the first pull handle or the second pull handle to rotate around the valve stem axis, thereby performing the opening and closing actions of the underwater ball valve; the present invention is provided with a plurality of stop grooves on the outer circumferential surface of the rotary wheel, and a liftable vertical pull rod is provided above the rotary wheel, and a stop block is fixedly connected to the bottom end of the vertical pull rod; when the vertical pull rod moves upward, the stop block is in a separated state from the rotary wheel, so that the rotary wheel can rotate freely around the valve stem axis, so that the first pull handle or the second pull handle can drive the spherical valve core to rotate, thereby realizing the opening and closing of the underwater ball valve; when the vertical pull rod moves downward under the elastic force of the reset spring and forms a plug-in stop match with the stop groove, the stop block can hinder the circumferential rotation of the rotary wheel, thereby locking and fixing the position of the spherical valve core to prevent misoperation of the underwater ball valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional schematic diagram of an underwater ball valve that can be controlled by a remote cable on the water surface according to the present invention;

[0021] Figure 2 This is a schematic diagram of the explosion structure of the underwater ball valve that can be remotely controlled by a cable on the water surface according to the present invention;

[0022] Figure 3 It is a structural diagram of the control mechanism;

[0023] Figure 4 This is a reference diagram of the underwater ball valve in the open state;

[0024] Figure 5 This is a reference diagram of the underwater ball valve in the intermediate transition state;

[0025] Figure 6 This is a reference diagram of the underwater ball valve in closed state.

[0026] Description of reference numerals in the figures:

[0027] 100. Valve body mechanism;

[0028] 110, valve body; 120, spherical valve core; 130, valve stem; 140, liquid inlet pipe; 150, liquid outlet pipe;

[0029] 200. Control agency;

[0030] 210, housing; 220, rotating wheel; 230, vertical pull rod; 240, return spring; 250, pulling rope; 260, pulling overload separator;

[0031] 211, upper chamber; 212, lower chamber; 213, stopper surface; 214, partition plate; 215, pressure membrane; 216, hole plug; 217, cover plate;

[0032] 221, stop groove; 222, stop block;

[0033] 231. Stop block; 232. Conical rubber sleeve; 233. Limiting ring;

[0034] 300, handle mechanism;

[0035] 310. First pull handle; 320. Valve opening pull rope; 330. Valve opening overload separator; 340. Second pull handle; 350. Valve closing pull rope; 360. Valve closing overload separator. DETAILED DESCRIPTION

[0036] The specific embodiments of the present invention will be described in further detail below in conjunction with the accompanying drawings. These embodiments are only used to illustrate the present invention and are not intended to limit the present invention.

[0037] In the description of the present invention, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inside," and "outside" and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0038] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0039] Furthermore, in the description of the present invention, unless otherwise specified, “plurality” means two or more.

[0040] Examples, such as Figures 1-6 As shown, an underwater ball valve that can be remotely controlled by a cable on the water surface comprises: a valve body mechanism 100, a control mechanism 200 and a handle mechanism 300 arranged in sequence along the horizontal direction; wherein

[0041] The valve body mechanism 100 includes a valve body 110, a spherical valve core 120 and a valve stem 130. The valve body 110 has a spherical valve cavity (not shown in the figure), and the top end of the valve body 110 is provided with a liquid inlet pipe 140 connected to the valve cavity, and the bottom end of the valve body 110 is provided with a liquid outlet pipe 150 connected to the valve cavity; the spherical valve core 120 is rotatably arranged in the valve cavity; one end of the valve stem 130 is fixedly connected to the spherical valve core 120, and the axis of the valve stem 130 is collinear with the rotation axis of the spherical valve core 120, and the other end of the valve stem 130 extends in the horizontal direction and passes through the valve body 110 and the control mechanism 200.

[0042] The control mechanism 200 includes a housing 210, a rotating wheel 220, a vertical pull rod 230 and a return spring 240. The housing 210 is fixedly arranged on one side of the valve body 110, and the housing 210 has a mounting cavity; the rotating wheel 220 is rotatably arranged in the mounting cavity of the housing 210 and is circumferentially fixedly connected to the valve stem 130, and the rotation axis of the rotating wheel 220 is colinear with the rotation axis of the valve stem 130. At least two stop grooves 221 are provided on the outer circumferential surface of the rotating wheel 220 in the circumferential direction; the vertical pull rod 230 is arranged in the mounting cavity of the housing 210 in a vertically movable manner, and the vertical pull rod 230 is arranged in the mounting cavity of the housing 210 in a vertically movable manner. 0 is located directly above the rotating wheel 220, the top end of the vertical pull rod 230 extends upward and passes through the shell 210, and the bottom end of the vertical pull rod 230 is fixedly connected to a stop block 231 that cooperates with the stop groove 221. Under the action of external force, the vertical pull rod 230 can drive the stop block 231 to rise and be in a separated state with the rotating wheel 220 to allow the circumferential rotation of the rotating wheel 220; the return spring 240 is transmission-connected to the vertical pull rod 230, so that the stop block 231 can descend under the elastic force of the return spring 240 and form a plug-in stop fit with the stop groove 221 to hinder the circumferential rotation of the rotating wheel 220.

[0043] The handle mechanism 300 includes a first handle 310 and a second handle 340 , and the rotating ends of the first handle 310 and the second handle 340 are respectively fixedly connected to the valve stem 130 in the circumferential direction and are used to drive the valve stem 130 to rotate.

[0044] The present application fixes one end of the valve stem 130 to the spherical valve core 120 in the inner cavity of the valve body 110, and the other end of the valve stem 130 passes through the valve body 110 in the horizontal direction and is fixedly connected to the rotary wheel 220, the first pull handle 310 and the second pull handle 340. The first pull handle 310 or the second pull handle 340 can be driven to rotate around the axis of the valve stem 130 and drive the spherical valve core 120 to rotate, thereby performing the opening and closing actions of the underwater ball valve; the present application provides a plurality of stop grooves 221 on the outer circumferential surface of the rotary wheel 220, and a vertical pull rod 230 that can be lifted and lowered is provided above the rotary wheel 220. The bottom end is fixedly connected with a stop block 231. When the vertical pull rod 230 rises, the stop block 231 is in a separated state from the rotary wheel 220, so that the rotary wheel 220 can rotate freely around the axis of the valve stem 130, so that the first pull handle 310 or the second pull handle 340 can drive the spherical valve core 120 to rotate, thereby realizing the opening and closing of the underwater ball valve; when the vertical pull rod 230 descends under the elastic force of the reset spring 240 and forms a stop with the stop groove 221, the stop block 231 can hinder the circumferential rotation of the rotary wheel 220, thereby locking and fixing the position of the spherical valve core 120 to prevent misoperation of the underwater ball valve.

[0045] In a specific embodiment, if Figure 2 、 Figure 3 、 Figure 4 、 Figure 6 As shown, the cross-section of the stop block 231 is an isosceles trapezoid with a larger upper portion and a smaller lower portion. The length direction of the stop block 231 is parallel to the valve stem 130. The trapezoidal cross-section of the stop block 231 is parallel to the end face of the runner 220, and the middle portion of the upper end face of the stop block 231 is fixedly connected to the bottom end of the vertical pull rod 230; two outwardly protruding stop blocks 222 are provided on the outer circumferential surface of the runner 220, and the two stop blocks 222 are provided along the circumferential direction of the runner 220, and a stop groove 221 is provided in the middle portion of the stop block 222. The stop groove 221 is parallel to the valve stem 130, and the cross-section of the stop groove 221 is an isosceles trapezoid with a larger upper portion and a smaller lower portion, so that the stop block 231 can be inserted into the stop groove 221 under the drive of the vertical pull rod 230, and the two side walls of the stop block 231 form a stop fit with the two side walls of the stop groove 221 to hinder the circumferential rotation of the runner 220.

[0046] Preferably, the radial angle of the two stop grooves 221 (the angle between the two diameters of the rotating wheel 220 where the two stop grooves 221 are located) is equal to the angle between the first handle 310 and the second handle 340, and on the projection plane perpendicular to the rotation axis of the valve stem 130, the projections of the first handle 310 and the second handle 340 respectively coincide with the projection of one stop groove 221.

[0047] More preferably, the included angle between the first handle 310 and the second handle 340 is 90°.

[0048] This arrangement is because: the valve stem 130 rotates under the drive of the first handle 310 and the second handle 340. When the first handle 310 rotates to a vertical position, the stop groove 221 opposite to the first handle 310 will follow the rotary wheel 220 to rotate to directly below the stop block 231. In this way, it is convenient for the stop block 231 to be accurately inserted into the stop groove 221 and form a stop fit; at the same time, when the second handle 340 rotates to a vertical position, the stop groove 221 opposite to the second handle 340 will follow the rotary wheel 220 to rotate to directly below the stop block 231.

[0049] More preferably, a stop surface 213 is provided on the inner wall of the housing 210 to form a stop fit with the stop block 222 and to position the stop groove 221 directly below the stop block 231 .

[0050] Specifically, the housing 210 includes a cylindrical portion and a columnar portion. The cylindrical portion is coaxially arranged with the valve stem 130. The columnar portion is positioned above the cylindrical portion, with the bottom end of the columnar portion fixedly connected to the cylindrical portion. The upper inner diameter of the cylindrical portion is larger than the lower inner diameter, so that stop surfaces 213 are formed on the sidewalls of the cylindrical portion.

[0051] This arrangement is because: stop surfaces 213 are provided on the inner walls on both sides of the shell 210. When the first handle 310 rotates to form a stop fit with the stop surface 213 on the rotating wheel 220, the second handle 340 just rotates to a vertical position, which facilitates positioning of the second handle 340 to prevent the second handle 340 from rotating excessively.

[0052] In a specific embodiment, if Figure 1 、 Figure 2 、 Figure 3 As shown, the installation cavity of the shell 210 includes a cylindrical section and a prismatic section, and a cover plate 217 is detachably fixedly connected on both sides of the shell 210 to make the installation cavity a sealed cavity; the cylindrical section is coaxially arranged with the valve stem 130, and the prismatic section is arranged above the cylindrical section and connected with the cylindrical section; a partition plate 214 is provided in the prismatic section, and the partition plate 214 separates the installation cavity of the shell 210 into an upper chamber 211 and a lower chamber 212 that are not connected to each other, and at the same time, a through hole (not shown in the figure) connecting the upper chamber 211 and the lower chamber 212 is provided on the partition plate 214, and a pressure membrane 215 is provided in the through hole, and the pressure membrane 215 can balance the pressure of the upper chamber 211 and the lower chamber 212 so that the vertical pull rod 230 can rise or fall.

[0053] Preferably, the lower chamber 212 is a sealed chamber and is filled with lubricating oil. The lubricating oil is used to lubricate the rotation of the impeller 220 and the plug-in fit between the stop block 231 and the stop groove 221, and also has the function of preventing seawater from entering and preventing rust. An oil filling hole (not shown in the figure) connected to the lower chamber 212 is provided at the bottom of the shell 210, and a plug 216 is installed in the oil filling hole.

[0054] More preferably, the middle part of the vertical pull rod 230 is sealed and slidably connected to the partition plate 214 so that the vertical pull rod 230 can be raised and lowered; the top end of the vertical pull rod 230 extends upward and passes through the through hole at the top end of the shell 210 (not shown in the figure), and a conical rubber sleeve 232 with a larger upper part and a smaller lower part is fixedly sleeved on the top end of the vertical pull rod 230. The conical rubber sleeve 232 can synchronously follow the vertical pull rod to rise and fall, thereby connecting the upper chamber 211 with the outside world, or making the upper chamber 211 in a closed state to prevent foreign matter from entering the upper chamber 211; a limit ring 233 is fixedly connected to the vertical pull rod 230, and the limit ring 233 is located between the partition plate 214 and the conical rubber sleeve 232, and is used to limit the rise of the vertical pull rod 230.

[0055] In a specific embodiment, if Figure 2 、 Figure 5 As shown, a pull rope 250 is connected to the top of the vertical pull rod 230, and a pull overload separator 260 is provided on the pull rope 250. When the pulling force applied to the pull rope 250 exceeds the set value of the pull overload separator 260, the pull overload separator 260 can be disconnected from the pull rope 250 below, thereby separating the pull rope 250 from the vertical pull rod 230.

[0056] In a specific embodiment, if Figure 3 As shown, the return spring 240 is a compression spring mounted on the vertical pull rod 230, the top end of the compression spring is connected to the partition plate 214, and the bottom end of the compression spring is connected to the stop block 231, so as to drive the stop block 231 to return downward through the elastic deformation of the compression spring.

[0057] In a specific embodiment, if Figure 2 、 Figure 5 As shown, a valve opening rope 320 is connected to the pulling end of the first pull handle 310, and a valve opening overload separator 330 is provided on the valve opening rope 320; a valve closing rope 350 is connected to the pulling end of the second pull handle 340, and a valve closing overload separator 360 is provided on the valve closing rope 350.

[0058] This arrangement is because: when the tension applied to the valve opening rope 320 exceeds the set value of the valve opening overload separator 330, the valve opening overload separator 330 can be disconnected from the valve opening rope 320 below, thereby realizing the separation of the valve opening rope 320 and the first pull handle 310; when the tension applied to the valve closing rope 350 exceeds the set value of the valve closing overload separator 360, the valve closing overload separator 360 can be disconnected from the valve closing rope 350 below, thereby realizing the separation of the valve closing rope 350 and the second pull handle 340.

[0059] The use process of the underwater ball valve of this application is as follows:

[0060] First, the installation of the underwater ball valve in the present application is the same as that of the existing valve, that is, the liquid inlet pipe 140 of the underwater ball valve is connected to the grouting pipe, and the liquid outlet pipe 150 is connected to the suction cylinder.

[0061] like Figure 2 、 Figure 3 As shown, the lubricating oil is filled into the lower chamber 212 through the oil filling hole at the bottom of the shell 210. The lubricating oil plays an anti-corrosion and lubricating role. The upper chamber 211 of the shell 210 is connected to the external seawater. The vertical pull rod 230 and the partition plate 214 are sealed and slidably connected, so that the upper chamber 211 and the lower chamber 212 are not connected to each other. The pressure between the upper chamber 211 and the lower chamber 212 is balanced by two pressure membranes 215 provided on the partition plate 214. The return spring 240 mounted on the vertical pull rod 230 is always in a compressed state.

[0062] When the pulling rope 250 is lifted upward, the vertical pull rod 230 overcomes the elastic force of the return spring 240 and moves upward until the limiting ring 233 on the vertical pull rod 230 presses against the shell 210. At this time, the stop block 231 and the rotary wheel 220 are in a separated state, and the distance from the stop block 231 to the axis of the valve stem 130 is greater than the distance from the stop block 222 to the valve stem 130, so that the rotary wheel 220 can rotate circumferentially.

[0063] When the pulling rope 250 is released, under the elastic force of the return spring 240, the vertical pull rod 230 and the stop block 231 move downward synchronously until the conical rubber sleeve 232 on the vertical pull rod 230 presses against the upper surface of the shell 210, and the conical rubber sleeve 232 serves to seal the upper chamber 211 of the shell 210; at the same time, the stop block 231 at the bottom end of the vertical pull rod 230 is inserted into the stop groove 221 on the rotary wheel 220, and the stop block 231 cooperates with the stop groove 221 to hinder the rotation of the rotary wheel 220, thereby fixing the position of the spherical valve core 120 in the valve body 110.

[0064] like Figure 6As shown, when the underwater ball valve is in a closed state, the stop block 231 at the bottom end of the vertical pull rod 230 is pressed against the stop groove 221 on the left side of the rotary wheel 220, and the rotary wheel 220 cannot rotate. If the pulling rope 250 connected to the top end of the vertical pull rod 230 is not pulled to release the rotary wheel 220, the underwater ball valve cannot be opened by pulling the valve opening rope 320.

[0065] like Figure 4 、 Figure 5 As shown, the action process of opening the underwater ball valve is as follows: first pull the pulling rope 250 connected to the vertical pull rod 230 upwards, the vertical pull rod 230 will move upwards under the action of external force, the stop block 231 follows the vertical pull rod 230 to move upwards and disengage from the stop groove 221 on the left side of the rotating wheel 220, so that the rotating wheel 220 can rotate counterclockwise; then pull the valve opening pull rope 320 connected to the first pull handle 310 upwards, the first pull handle 310 will drive the valve stem 130 to rotate around the axis under the action of external force, and then drive the spherical valve core 120 to rotate in the inner cavity of the valve body 110, The underwater ball valve is now opened; when the rotary wheel 220 rotates along with the valve stem 130 until the underwater ball valve is fully opened (the stop block 222 on the left side of the rotary wheel 220 abuts the stop surface 213 on the left side of the inner wall of the shell 210), the stop groove 221 on the right side of the rotary wheel 220 rotates to just below the stop block 231, and the pulling rope 250 is released. Under the elastic force of the return spring 240, the stop block 231 will move downward synchronously with the vertical pull rod 230 until the stop block 231 abuts against the stop groove 221 on the left side of the rotary wheel 220, thereby locking the rotation of the rotary wheel 220.

[0066] like Figure 5 、 Figure 6 As shown, the action process of closing the underwater ball valve is as follows: first, pull the pulling rope 250 connected to the top of the vertical pull rod 230 upwards, the vertical pull rod 230 will move upwards under the action of external force, and the stop block 231 at the bottom end of the vertical pull rod 230 will move upwards synchronously with the vertical pull rod 230 until the stop block 231 is disengaged from the stop groove 221 on the right side of the rotating wheel 220, so that the rotating wheel 220 can rotate clockwise; then pull the valve closing rope 350 connected to the second pull handle 340 upwards, under the action of external force, the second pull handle 340 will drive the valve stem 130 and the rotating wheel 220 to rotate, The spherical valve core 120 is then rotated in the valve body 110 to close the underwater ball valve; when the underwater ball valve is fully closed (the stop block 222 on the right side of the rotary wheel 220 abuts the stop surface 213 on the right side of the inner wall of the shell 210), the stop groove 221 on the left side of the rotary wheel 220 rotates to directly below the stop block 231; the pulling rope 250 is released, and under the elastic force of the reset spring 240, the vertical pull rod 230 and the stop block 231 move downward synchronously until the stop block 231 abuts against the stop groove 221 on the left side of the rotary wheel 220, thereby locking the rotation of the rotary wheel 220.

[0067] like Figure 4 、 Figure 6 As shown, after the grouting is completed, the process of permanently closing the underwater ball valve is as follows: when the underwater ball valve is fully open, the valve opening rope 320 is applied with a separation value exceeding the valve opening overload separator 330 to separate the valve opening rope 320 from the first pull handle 310; then the underwater ball valve is switched to a fully closed state, and the valve closing rope 350 is applied with a separation value exceeding the valve closing overload separator 360 to separate the valve closing rope 350 from the second pull handle 340; and then the lifting rope 250 is separated from the vertical pull rod 230 by applying a separation value exceeding the lifting overload separator 260.

[0068] Compared with the existing technology, this application has at least the following beneficial technical effects:

[0069] The underwater ball valve in this application can be opened and closed remotely on the water surface, thereby replacing the underwater operation of divers during grouting operations, improving construction safety and convenience, and reducing the cost of offshore wind power construction.

[0070] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be regarded as the scope of protection of the present invention.

Claims

1. An underwater ball valve that can be remotely controlled by a cable on the water surface, characterized in that: include: A valve body mechanism (100), a control mechanism (200), and a handle mechanism (300) are arranged in sequence; The valve body mechanism (100) comprises a valve body (110), a spherical valve core (120), and a valve stem (130); the top end of the valve body (110) is provided with a liquid inlet pipe (140) communicating with the valve cavity, and the bottom end of the valve body (110) is provided with a liquid outlet pipe (150) communicating with the valve cavity; the spherical valve core (120) is rotatably arranged in the valve cavity; one end of the valve stem (130) is fixedly connected to the spherical valve core (120), and the other end of the valve stem (130) extends in a horizontal direction and penetrates the valve body (110) and the control mechanism (200); The control mechanism (200) includes a housing (210), a rotating wheel (220), a vertical pull rod (230) and a return spring (240), wherein the housing (210) is fixedly arranged on one side of the valve body (110); the rotating wheel (220) is rotatably arranged in the installation cavity of the housing (210) and is circumferentially fixedly connected to the valve stem (130), and at least two stop grooves (221) are provided on the rotating wheel (220) along the circumferential direction; the vertical pull rod (230) is fixedly arranged on the valve body (110) and the return spring (24 ... 30) is arranged in a mounting cavity of the housing (210) in a liftable manner, and the top end of the vertical pull rod (230) extends upward and passes through the housing (210), and the bottom end of the vertical pull rod (230) is fixedly connected with a stop block (231); the return spring (240) is transmission-connected to the vertical pull rod (230) so that the stop block (231) can move downward to form a plug-in stop fit with the stop groove (221) and hinder the circumferential rotation of the rotating wheel (220); The pull handle mechanism (300) comprises a first pull handle (310) and a second pull handle (340), and the rotating ends of the first pull handle (310) and the second pull handle (340) are circumferentially fixedly connected to the valve stem (130) and are used to drive the valve stem (130) to rotate; The housing (210) is provided with a partition plate (214) for dividing the installation cavity into an upper chamber (211) and a lower chamber (212); the partition plate (214) is provided with a through hole for connecting the upper chamber (211) and the lower chamber (212); and the through hole is provided with a pressure membrane (215) for balancing the internal pressure of the upper chamber (211) and the lower chamber (212); The middle portion of the vertical pull rod (230) is sealed and slidably connected to the partition plate (214), and a top fixed sleeve of the vertical pull rod (230) is provided with a conical rubber sleeve (232) that is larger at the top and smaller at the bottom. A limiting ring (233) is fixedly connected to the vertical pull rod (230), and the limiting ring (233) is located between the partition plate (214) and the conical rubber sleeve (232).

2. The underwater ball valve that can be remotely controlled by a cable on the water surface according to claim 1 is characterized in that: The cross section of the stop block (231) is an isosceles trapezoid that is larger at the top and smaller at the bottom, and two stop blocks (222) are provided on the outer circumferential surface of the rotating wheel (220) along the circumferential direction, and a stop groove (221) that matches the stop block (231) is provided in the middle of the stop block (222), and on the projection surface perpendicular to the axial direction of the valve stem (130), the projections of the two stop grooves (221) coincide with the projections of the first pull handle (310) and the second pull handle (340) in a one-to-one correspondence.

3. The underwater ball valve that can be remotely controlled by a cable on the water surface according to claim 2 is characterized in that: The included angle between the first pull handle (310) and the second pull handle (340) is 90°.

4. The underwater ball valve capable of being remotely controlled by a cable on the water surface according to claim 2, characterized in that: A stop surface (213) is provided on the inner wall of the housing (210) to form a stop fit with the stop block (222) and to position the stop groove (221) directly below the stop block (231).

5. The underwater ball valve that can be remotely controlled by a cable on the water surface according to claim 1 is characterized in that: Lubricating oil is injected into the lower chamber (212), and an oil injection hole communicating with the lower chamber (212) is provided at the bottom of the housing (210), with a hole plug (216) installed in the oil injection hole.

6. The underwater ball valve capable of being remotely controlled by a cable on the water surface according to claim 1, characterized in that: The top end of the vertical pull rod (230) is connected to a pulling rope (250), and a pulling overload separator (260) is provided on the pulling rope (250).

7. The underwater ball valve that can be remotely controlled by a cable on the water surface according to claim 1 is characterized in that: The return spring (240) is a compression spring sleeved on the vertical pull rod (230) and abutting between the partition plate (214) and the stop block (231).

8. The underwater ball valve capable of being remotely controlled by a cable on the water surface according to claim 1, characterized in that: The lifting end of the first pull handle (310) is connected to a valve opening pull rope (320), and the valve opening pull rope (320) is provided with a valve opening overload separator (330); the lifting end of the second pull handle (340) is connected to a valve closing pull rope (350), and the valve closing pull rope (350) is provided with a valve closing overload separator (360).

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