An electrically powered hydroelectric gate valve

Abstract

The application discloses a kind of electric water power gate valves, including valve body, and be opened with transverse flow passage in valve body, and be installed with opening and closing member for transverse flow passage opening and closing at valve body, and opening and closing member is cylindrical, and the bottom of opening and closing member is provided with upper pair of notches, and the inner end surface of upper pair of notches is fixed with sealing pad, and lower pair of notches are opened on valve body, and lower pair of notches are fixed with protrusion matched with upper pair of notches;Valve body is opened with longitudinal channel communicated with transverse flow passage, and sleeve is fixed on longitudinal channel, and the bottom of inner contour of sleeve is provided with the support platform of the shape of 'V', and circular annular groove is installed on support platform, and sealing ring is installed at circular annular groove, and the top of opening and closing member is provided with conical compression platform, and the inner contour surface of sleeve is provided with self-lubricating metal layer.The application can be closed under high-pressure medium environment, and when sealing ring is damaged, it can be repaired and replaced without closing pipeline, with small loss and low maintenance cost, and is worth popularization and application.

Description

Technical Field

[0001] This invention relates to the field of high-end devices, particularly valves used in high-pressure media environments in hydropower, and especially a high-pressure gate valve used in the hydropower field. Background Technology

[0002] Current gate valves use a gate as the opening and closing element, with the gate's movement direction perpendicular to the fluid direction. In high-pressure media environments (such as in hydropower, where the water head is very high and the water pressure is very large, placing extremely high demands on the seals), the gate is prone to deformation due to pressure impact. This results in high pressure resistance, making it difficult to open and reset the gate. Furthermore, in high-pressure media environments, the seals on the pressure-bearing surface (where the gate and seals are perpendicular) are subject to high friction when opening or resetting the gate, which easily leads to premature wear of the seals. This results in a short service life for the gate valve, requiring frequent replacement of damaged seals and incurring high operating costs. Moreover, replacing seals requires shutting down the pipeline for inspection and replacement, causing significant economic losses.

[0003] Chinese utility model patent CN 203703203 U discloses a double-seal single-gate flat gate valve, comprising a valve body, valve seat, gate, sealing structure, valve cover, bracket, handwheel, and extended sleeve. The valve seat is located within the valve body, and the gate passes through the middle of the valve seat and is inserted into the valve body, with the valve seat and gate tightly fitted and sealed. The valve cover is located on the valve body and is sequentially connected to the bracket, handwheel, and extended sleeve from bottom to top. A groove is provided at the sealing point between the valve seat and the gate, and a sealing structure is embedded in the groove. The sealing structure consists of a low-pressure sealing ring and a high-pressure sealing ring, with the low-pressure sealing ring positioned above the high-pressure sealing ring. The low-pressure sealing ring has a right-angled triangular cross-section, while the high-pressure sealing ring has a rectangular cross-section. In high-pressure media environments, the low-pressure and high-pressure sealing rings on the right side of the gate experience very high compressive forces. When the gate moves up to open or down to reset, the end face of the gate experiences high friction on the low-pressure and high-pressure sealing rings, causing them to wear easily, resulting in a short service life and requiring frequent replacement of the seals, thus increasing operating costs. Summary of the Invention

[0004] The present invention aims to overcome the shortcomings of the prior art and provide an electric hydroelectric gate valve and its usage method that can be applied in high water pressure hydroelectric environments, with no deformation of the opening and closing parts, no severe wear of the sealing ring when the opening and closing parts are opened and reset, and a long service life. This invention meets the requirements of easy opening and closing of the gate valve, minimal wear of the sealing parts, and low maintenance costs in high water pressure hydroelectric environments.

[0005] The technical solution adopted by this invention to solve its technical problem is as follows: This electric water gate valve includes a valve body with a transverse flow channel inside. An opening / closing component for opening and closing the transverse flow channel is installed on the valve body. The opening / closing component is cylindrical, with an upper mating recess at its bottom. A sealing gasket is fixed to the inner end face of the upper mating recess. A lower mating recess is opened on the valve body, with a protrusion that mates with the upper mating recess fixed at the lower mating recess. A longitudinal channel communicating with the transverse flow channel is opened on the valve body. A sleeve is fixed on the longitudinal channel. A V-shaped support platform is provided at the bottom of the inner contour of the sleeve. An annular groove is installed on the support platform, and a sealing ring is installed at the annular groove. A conical pressing platform is provided at the top of the opening / closing component. A self-lubricating metal layer is provided on the inner contour surface of the sleeve. A cylindrical rod is fixed on the opening / closing component. The bottom end of the rod extends into the cavity of the opening and closing component and is fixed at the outer end face of the notch. The outer contour surface of the cylindrical rod is threaded, and an anti-rotation plane is provided on the cylindrical rod. An anti-rotation plate that mates with the anti-rotation plane is fixed on the valve body. An annular protrusion is fixed on the valve body, and a circular limiting groove is opened in the annular protrusion. A rotating block is rotatably connected to the circular limiting groove. A threaded through hole that mates with the thread of the cylindrical rod is opened on the rotating block. A drive mechanism is fixed at the top of the valve body. The drive mechanism includes a housing. A first bevel gear is rotatably connected inside the housing. A second bevel gear that meshes with the first bevel gear is rotatably connected inside the housing. A first drive motor that drives the first bevel gear to rotate is fixed at the housing. A rotating shaft that is fixed together with the rotating block is fixed on the bottom surface of the second bevel gear. A passage for the cylindrical rod to pass through is opened on the rotating shaft.The valve body, transverse flow channel, and opening / closing element here are used for opening and closing pipelines. The cylindrical shape of the opening / closing element allows it to withstand much higher medium pressure without deformation compared to traditional gate valves, given the same stress area, and also allows for longer service life. The upper and lower matching recesses and protrusions provide support to both the upper and lower parts of the opening / closing element when sealing the pipeline, enabling it to withstand extremely high medium pressure without bending or deformation when closing high-pressure media, demonstrating strong load-bearing capacity. The sleeve, annular groove on the support platform, sealing ring, conical clamping platform, and sealing gasket are also included. Its function is to seal both the upper and lower gate valve areas of the opening and closing element, thereby enabling a shut-off and sealing operation on the pipeline. Because this invention uses a top-down compression sealing method, the sealing ring experiences minimal wear compared to traditional gate valves (where the sealing ring moves up and down due to compression), resulting in a very long service life. Replacement is only necessary when the sealing ring ages. The self-lubricating metal layer reduces friction between the opening and closing element and the sleeve during up-and-down movement, thus reducing resistance and requiring less effort. The components include a cylindrical rod, threads, an anti-rotation plane, an anti-rotation plate, and annular protrusions. The functions of the main body, circular limiting groove, rotating block, threaded through hole, and drive mechanism are to move the opening and closing parts up and down, thereby enabling electric opening and closing operations on the pipeline. The anti-rotation plane and anti-rotation plate prevent the cylindrical rod from rotating synchronously when the rotating block rotates within the circular limiting groove. This prevents the cylindrical rod from rotating synchronously, thus moving the opening and closing parts up and down. The drive mechanism electrically drives the gate valve to open and close, making it easier in high-pressure media environments. The working principle of the drive mechanism is: the first drive motor drives the first umbrella... The rotation of the gear drives the rotation of the second bevel gear, which in turn drives the rotation of the shaft, which in turn drives the rotation of the rotating block, thereby causing the cylindrical rod to move up and down, and thus the opening and closing parts to move up and down. The self-lubricating metal layer here is made of tin bronze. The upper and lower movement limits of the opening and closing parts can be controlled by a microcontroller to control the number of rotations of the motor, or by a position signal switch to control the upper movement limit (pipe fully open position) and the lower movement limit (pipe partially open position). The microcontroller here is a commercially available product, and products from companies such as Freescale, Renesas Electronics, Infineon, and Toshiba can be selected.

[0006] Further improvements include the addition of a pair of symmetrically arranged conical support frames fixed within the cavity of the opening and closing component. The purpose of these conical support frames is to increase the strength of the opening and closing component, thereby enabling it to resist high-pressure media and preventing deformation due to impact.

[0007] Further improvements include an insertion hole on the protrusion and a longitudinally penetrating hole with an elliptical cross-section inside the cylindrical rod. A support rod is inserted into the longitudinally penetrating hole, and a threaded hole is provided inside the support rod, with a threaded rod threadedly connected to the threaded hole. A second drive motor is fixed on the housing to drive the rotation of the threaded rod. The function of the longitudinally penetrating hole, support rod, threaded hole, and second drive motor is to provide anti-bending support for the opening and closing parts, enabling them to withstand higher medium pressures without deformation, thus extending their service life. The upper and lower movement limits of the support rod can be controlled by a microcontroller to control the number of rotations of the motor, or by a position signal switch. The microcontroller is a commercially available product; options include those from Freescale, Renesas Electronics, Infineon, and Toshiba. The elliptical cross-section of the longitudinally penetrating hole prevents the support rod from rotating synchronously with the threaded rod, thus allowing the support rod to move up and down while the threaded rod rotates.

[0008] Further improvements include the installation of a pipe body at both the inlet and outlet ends of the valve body. Threaded blind holes are formed at the upper and lower positions of the pipe body cavity. Each of the two threaded blind holes has a movable insertion hole at its side end, located on the pipe body and communicating with the threaded blind holes. The cross-section of the movable insertion hole is larger than that of the threaded blind holes. A cylindrical rotating core is positioned between the two threaded blind holes, with a radial channel hole on the cylindrical rotating core. Insert blocks that connect to the movable insertion holes are fixed at both the top and bottom ends of the cylindrical rotating core. The upper and lower ends of the cylindrical rotating core are each provided with a first thread that connects to the two threaded blind holes respectively. A shaft extending from the movable insertion hole is fixed on the square insertion block, and a hand crank is fixed to the top of the shaft. A first sealing ring is installed at the upper and lower ends of the two movable insertion holes. A connecting pipe is connected between the two pipe bodies. The inlet end of the connecting pipe is located on the left side of the left cylindrical rotating core, and the outlet end of the connecting pipe is located on the right side of the right cylindrical rotating core. A needle valve is installed on the connecting pipe. Pipes are installed on both pipe bodies, and valve switches are installed on both pipes. Pressure gauges are installed on both valve switches. The left pipe is located on the right side of the cylindrical rotating core, and the right pipe is located on the left side of the cylindrical rotating core. The function of the pipe body, threaded blind hole, movable insertion hole, radial channel hole, first thread, shaft, first sealing ring, connecting pipe, and needle valve here is to intercept the medium in the pipeline. This allows for the replacement of vulnerable parts (such as sealing rings) in the gate valve components without closing the pipeline, thus reducing losses. The working principle of the pipeline medium diversion is as follows: When it is necessary to replace the vulnerable parts in the gate valve, simply turn the handwheel counterclockwise, which will drive the cylindrical core to rotate counterclockwise. Since the cylindrical core is threaded into the threaded blind hole, the cylindrical core will move downwards, and the upper and lower ends of the cylindrical core will press against the first sealing ring. At the sealing ring, to prevent leakage, the flow channel of the pipe is sealed. At this time, the needle valve is in the open state, and the medium will flow through the connecting pipe to the right-hand pipe. Thus, the vulnerable parts of the gate valve can be replaced without sealing the pipe, greatly reducing the losses caused by pipeline maintenance. Because the cylindrical rotor is cylindrical, it can withstand a high medium pressure per unit area (compared to traditional gate valves). The role of the pipeline, valve switch, and pressure gauge here is to detect whether the cylindrical rotor has closed the pipe. When the pressure gauge shows zero pressure, it means that the pipe is completely closed. At this time, it is safe to replace the damaged parts in the valve body without sealing the pipe.

[0009] Further improvements include a cylindrical column fixed to the lower movable socket, with a socket channel on the bottom surface of the cylindrical rotating core, and the cylindrical column fitting into the socket channel. The function of the cylindrical column and the socket channel is to reduce the displacement of the cylindrical rotating core due to the influence of the high-pressure medium during movement, thereby reducing the moving resistance of the cylindrical rotating core.

[0010] Further improvements include the installation of self-lubricating bushings on both movable insertion holes and the insertion hole channels. The function of these self-lubricating bushings is to greatly reduce the frictional forces experienced by the cylindrical core during rotation and movement; these self-lubricating bushings are made of tin bronze.

[0011] Further improvements include a sealing end cap fixed to the top of the valve body with fasteners, and a channel tube fixed to the top of the sealing end cap with fasteners. The valve body is mounted on the channel tube. The function of the sealing end cap and channel tube is to facilitate the installation, replacement, and maintenance of the opening and closing components and seals.

[0012] The method of using this electric water gate valve includes the following steps:

[0013] S1. Gate valve installation and use: First, insert the sleeve into the longitudinal channel and tighten it onto the valve body with fasteners. Next, insert the opening and closing parts into the sleeve and make the upper and lower mating recesses engage. Then, fit the anti-rotation plate onto the anti-rotation plane. Next, thread the cylindrical rod onto the rotating block. Then, insert the support rod into the longitudinal through hole and make the support rod and the insertion hole engage together. Next, thread the threaded rod onto the threaded hole. Finally, install the sealing end cap and channel tube, and then install the housing onto the top of the channel tube.

[0014] S2. Pipe opening and use: Start the first drive motor, which drives the first bevel gear to rotate counterclockwise, thereby driving the second bevel gear to rotate, and then driving the rotating block to rotate through the rotating shaft. Since the cylindrical rod is prevented from rotating by the anti-rotation plate through the anti-rotation plane, the rotating block will drive the cylindrical rod to move upward when it rotates, thereby driving the opening and closing parts to move upward and opening the pipe to flow. Finally, start the second servo motor to drive the threaded rod to rotate counterclockwise, thereby driving the support rod to move upward and move out of the transverse flow channel;

[0015] S3. Pipeline Closure Operation: Start the second servo motor to drive the threaded rod to rotate clockwise, thereby moving the support rod downward and inserting it into the socket. Then, start the first drive motor, which drives the first bevel gear to rotate clockwise, thereby driving the second bevel gear to rotate. The rotating block is then rotated via the shaft. Since the cylindrical rod is prevented from rotating by engaging with the anti-rotation plate through the anti-rotation plane, the rotation of the rotating block will cause the cylindrical rod to move downward, thereby causing the opening and closing parts to move downward. When the upper matching notch aligns with the protrusion, the pipeline flow is closed, thus shutting off the pipeline.

[0016] S4. Replacement of parts for unsealed pipes: Open the needle valve, then turn the hand crank and rotate the cylindrical core downwards, so that the insert block is pressed against the first sealing ring. At this time, the radial channel hole rotates 90 degrees, and the contour surface of the cylindrical core seals the pipe flow channel, thereby draining the high-pressure water through the connecting pipe. Then, the sealing end cap and channel pipe can be removed, and the damaged parts in the valve body can be replaced.

[0017] The beneficial effects of this invention are:

[0018] 1) Gate valves allow for easy and effortless opening and closing of pipelines with minimal resistance;

[0019] 2) The opening and closing mechanism uses longitudinal pressure to close the pipeline, which minimizes wear on the sealing components, thus extending the service life of the sealing components and the gate valve.

[0020] 3) The method of replacing gate valve parts (sealing rings, vulnerable parts) without sealing the pipeline results in low maintenance costs and no economic loss;

[0021] 4) The opening and closing parts are made of cylinders, which can withstand greater water pressure, have less deformation, and have lower production costs compared to gates.

[0022] 5) It adopts an assembly form, which is convenient for installation and maintenance, and has low maintenance costs. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of the present invention;

[0024] Figure 2 for Figure 1 A magnified view of a portion of region A;

[0025] Figure 3 for Figure 1 A magnified view of a portion of region B;

[0026] Figure 4 for Figure 1 A magnified view of a portion of region C;

[0027] Figure 5 This is a cross-sectional view of the anti-spinning plate area in this invention;

[0028] Figure 6 The three-dimensional anti-spin plate area in this invention Figure 1 ;

[0029] Figure 7 The three-dimensional anti-spin plate area in this invention Figure 2 ;

[0030] Figure 8 This is a schematic diagram of the structure of the sealing end cap area in this invention;

[0031] Figure 9 This is the front view of the present invention;

[0032] Figure 10 This is a schematic diagram of the cylindrical core rotation region in this invention;

[0033] Figure 11 This is a flowchart illustrating the working principle of the opening and closing mechanism in this invention.

[0034] Figure 12 This is a flowchart illustrating the working principle of the cylindrical rotating core in this invention.

[0035] Explanation of reference numerals in the attached drawings: Valve body 1, transverse flow channel 1-1, lower mating notch 1-2, protrusion 1-3, anti-rotation plate 1-3a, insertion hole 1-3b, longitudinal channel 1-4, annular protrusion 1-5, circular limiting groove 1-5a, opening and closing element 2, upper mating notch 2-1, sealing gasket 2-2, sleeve 3, self-lubricating metal layer 3a, support platform 3-1, annular groove 3-1a, sealing ring 3-1b, cylindrical rod 4, thread 4-1, anti-rotation plane 4-2, longitudinal through hole 4-3, rotating block 5, threaded through hole 5-1, drive mechanism 6, housing 6-1, first bevel gear 6-2, second... Bevel gear 6-3, first drive motor 6-4, rotating shaft 6-5, through channel 6-5a, conical support frame 7, support rod 8, threaded hole 8-1, threaded rod 9, second drive motor 10, tube body 11, threaded blind hole 11-1, movable insertion hole 11-2, first sealing ring 11-2a, cylindrical rotating core 12, radial channel hole 12-1, insertion block 12-2, first thread 12-3, insertion channel 12-4, shaft 13, hand crank 14, needle valve 16, round column 17, self-lubricating bushing 18, sealing end cap 19, channel tube 20, pipe 21, valve switch 22, pressure gauge 23. Detailed Implementation

[0036] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0037] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0038] See attached document Figures 1-8 This type of electric water gate valve includes a valve body 1, with a transverse flow channel 1-1 inside the valve body 1. An opening / closing element 2 for opening and closing the transverse flow channel 1-1 is installed on the valve body 1. The opening / closing element 2 is cylindrical, with an upper mating recess 2-1 at its bottom. A sealing gasket 2-2 is fixed to the inner end face of the upper mating recess 2-1. A lower mating recess 1-2 is opened on the valve body 1, with a protrusion 1-3 fixed to the lower mating recess 1-2 to mate with the upper mating recess 2-1. The valve body 1 also has a section for connecting the transverse flow channel 1-1. -1 Connects the longitudinal channel 1-4, on which a sleeve 3 is fixed. The bottom of the inner contour of the sleeve 3 is provided with a "V"-shaped support platform 3-1. A circular groove 3-1a is installed on the support platform 3-1, and a sealing ring 3-1b is installed at the circular groove 3-1a. A conical pressing platform 2-3 is provided at the top of the opening and closing part 2. A self-lubricating metal layer 3a is provided on the inner contour surface of the sleeve 3. A cylindrical rod 4 is fixed on the opening and closing part 2, and the bottom end of the cylindrical rod 4 extends into the cavity of the opening and closing part 2. It is fixed at the outer end face of the notch 2-1. The outer contour surface of the cylindrical rod 4 is provided with a thread 4-1. The cylindrical rod 4 is provided with an anti-rotation plane 4-2. The valve body 1 is fixed with an anti-rotation plate 1-3a that mates with the anti-rotation plane 4-2. The valve body 1 is fixed with an annular protrusion 1-5. The annular protrusion 1-5 has a circular limiting groove 1-5a. A rotating block 5 is rotatably connected to the circular limiting groove 1-5a. The rotating block 5 has a threaded through hole 5-1 that mates with the thread of the cylindrical rod 4. The valve body 1 A drive mechanism 6 is fixed at the top. The drive mechanism 6 includes a housing 6-1. A first bevel gear 6-2 is rotatably connected inside the housing 6-1. A second bevel gear 6-3, which meshes with the first bevel gear 6-2, is rotatably connected inside the housing 6-1. A first drive motor 6-4, which drives the first bevel gear 6-2 to rotate, is fixed at the housing 6-1. A rotating shaft 6-5, which is fixed together with the rotating block 5, is fixed on the bottom surface of the second bevel gear 6-3. A passage 6-5a is opened on the rotating shaft 6-5 for the cylindrical rod 4 to pass through.

[0039] A pair of cone-shaped support frames 7, arranged symmetrically at the top and bottom, are fixed inside the cavity of the opening and closing component 2.

[0040] The protrusion 1-3 has an insertion hole 1-3b. The cylindrical rod 4 has a longitudinal through hole 4-3 with an elliptical cross section. A support rod 8 is inserted into the longitudinal through hole 4-3. The support rod 8 has a threaded hole 8-1. A threaded rod 9 is threadedly connected to the threaded hole 8-1. A second drive motor 10 that drives the threaded rod 9 to rotate is fixed on the housing 6-1.

[0041] A pipe body 11 is installed at both the inlet and outlet ends of the valve body 1. Threaded blind holes 11-1 are provided at the upper and lower positions of the cavity of the pipe body 11. A movable insertion hole 11-2, located at the pipe body 11 and communicating with the threaded blind holes 11-1, is provided at the side end of each of the two threaded blind holes 11-1. The cross-section of the movable insertion hole 11-2 is larger than the cross-section of the threaded blind holes 11-1. A cylindrical rotating core 12 is provided between the two threaded blind holes 11-1. A radial channel hole 12-1 is provided on the cylindrical rotating core 12. Insert blocks 12-2, which are inserted into the movable insertion holes 11-2, are fixed at both the top and bottom ends of the cylindrical rotating core 12. The upper and lower ends of the cylindrical rotating core 12 are respectively provided with a first thread 12-3 that is threadedly connected to the two threaded blind holes 11-1. A shaft 13 extending from the movable insertion hole 11-2 is fixed on the insertion block 12-2. A hand crank 14 is fixed to the top of the shaft 13. A first sealing ring 11-2a is installed at the upper and lower ends of the two movable insertion holes 11-2. A connecting pipe 15 is connected between the two pipe bodies 11. The inlet end of the connecting pipe 15 is located on the left side of the left cylindrical rotating core 12, and the outlet end of the connecting pipe 15 is located on the right side of the right cylindrical rotating core 12. A needle valve 16 is installed on the connecting pipe 15. Pipes 21 are installed on both pipe bodies 11. A valve switch 22 is installed on both pipes 21. A pressure gauge 23 is installed on both valve switches 22. The left pipe 21 is located on the right side of the cylindrical rotating core 12, and the right pipe 21 is located on the left side of the cylindrical rotating core 12.

[0042] A cylindrical column 17 is fixed on the lower side movable insertion hole 11-2. The bottom surface of the cylindrical rotating core 12 has an insertion hole channel 12-4, and the cylindrical column 17 is fitted into the insertion hole channel 12-4.

[0043] Self-lubricating bushings 18 are installed on the upper part of the two movable sockets 11-2 and the socket channel 12-4.

[0044] A sealing end cap 19 is fixed to the top of the valve body 1 by fasteners, and a channel pipe 20 is fixed to the top of the sealing end cap 19 by fasteners. The housing 6-1 is mounted on the channel pipe 20.

[0045] The method of using this electric water gate valve includes the following steps:

[0046] S1. Gate valve installation and use: First, insert the sleeve 3 into the longitudinal channel 1-3 and tighten it onto the valve body 1 with fasteners. Next, insert the opening and closing element 2 into the sleeve 3 so that the upper mating notch 2-1 and the lower mating notch 1-2 are engaged. Then, engage the anti-rotation plate 1-3a on the anti-rotation plane 4-2. Then, thread the cylindrical rod 4 onto the rotating block 5. Next, insert the support rod 8 into the longitudinal through hole 4-3 so that the support rod 8 is engaged with the insertion hole 1-3b. Next, thread the threaded rod 9 onto the threaded hole 8-1. Finally, install the sealing end cap 18 and the channel tube 19, and then install the housing 6-1 on the top of the channel tube 19.

[0047] S2. Pipeline opening and use: Start the first drive motor 6-4. The first drive motor 6-4 drives the first bevel gear 6-2 to rotate counterclockwise, thereby driving the second bevel gear 6-3 to rotate. Then, the rotating block 5 is driven to rotate through the rotating shaft 6-5. Since the cylindrical rod 4 is prevented from rotating by cooperating with the anti-rotation plate 1-3a through the anti-rotation plane 4-2, the rotating block 5 will drive the cylindrical rod 4 to move upward when it rotates, thereby driving the opening and closing part 2 to move upward and opening the pipeline to flow. Finally, start the second servo motor 10 to drive the threaded rod 9 to rotate counterclockwise, thereby driving the support rod 8 to move upward and out of the transverse flow channel 1-1.

[0048] S3. Pipeline Closure: Start the second servo motor 10 to drive the threaded rod 9 to rotate clockwise, thereby moving the support rod 8 downward and inserting it into the socket 1-3b. Then, start the first drive motor 6-4, which drives the first bevel gear 6-2 to rotate clockwise, thereby driving the second bevel gear 6-3 to rotate. The rotating block 5 is then rotated through the rotating shaft 6-5. Since the cylindrical rod 4 is prevented from rotating by cooperating with the anti-rotation plate 1-3a through the anti-rotation plane 4-2, the rotating block 5 will drive the cylindrical rod 4 to move downward when it rotates, thereby driving the opening and closing part 2 to move downward. When the upper matching notch 2-1 is matched with the protrusion 1-3, the pipeline is closed.

[0049] S4. Replacement of parts for unsealed pipelines: Open needle valve 16, then turn hand crank 14 and drive cylindrical rotating core 12 to rotate and move downward, so that insert block 12-2 is pressed against the first sealing ring 11-2a. At this time, radial channel hole 12-1 rotates 90 degrees, and the contour surface of cylindrical rotating core 12 seals the flow channel of pipe body 11, thereby draining high-pressure water through connecting pipe 15. At this time, sealing end cap 19 and channel pipe 20 can be removed, and damaged parts inside valve body 1 can be replaced.

[0050] The working principle of this invention is as follows: When opening the gate valve, it is only necessary to first start the first drive motor 6-4. The first drive motor 6-4 drives the first bevel gear 6-2 to rotate counterclockwise, thereby driving the second bevel gear 6-3 to rotate. Then, the rotating block 5 is driven to rotate through the rotating shaft 6-5. Since the cylindrical rod 4 is prevented from rotating by cooperating with the anti-rotation plate 1-3a through the anti-rotation plane 4-2, the rotation of the rotating block 5 will drive the cylindrical rod 4 to move upward, thereby driving the opening and closing part 2 to move upward and opening the pipeline for flow. Finally, the second servo motor 10 is started to drive the threaded rod 9 to rotate counterclockwise, thereby driving the support rod 8 to move upward and out of the transverse flow channel 1-1 (e.g., Figure 11 (as shown)

[0051] When the gate valve is closed, the second servo motor 10 is started to drive the threaded rod 9 to rotate clockwise, thereby moving the support rod 8 downward and inserting it into the socket 1-3b. Then, the first drive motor 6-4 is started, which drives the first bevel gear 6-2 to rotate clockwise, thereby driving the second bevel gear 6-3 to rotate. The rotating block 5 is then rotated through the rotating shaft 6-5. Since the cylindrical rod 4 is prevented from rotating by cooperating with the anti-rotation plate 1-3a through the anti-rotation plane 4-2, the rotating block 5 will drive the cylindrical rod 4 to move downward when it rotates, thereby driving the opening and closing part 2 to move downward, and causing the conical pressing table 2-3 to cooperate with the support table 3-1. The upper matching notch 2-1 is cooperated with the protrusion 1-3, thereby closing the pipeline.

[0052] When it is necessary to replace damaged parts in a pipe without sealing it, simply open the needle valve 16 first, then turn the hand crank 14 to rotate and move the cylindrical rotating core 12 downward, so that the insert 12-2 is pressed against the first sealing ring 11-2a. At this time, the radial channel hole 12-1 rotates 90 degrees, and the contour surface of the cylindrical rotating core 12 seals the flow channel of the pipe body 11, thereby draining the high-pressure water through the connecting pipe 15. When the reading of the pressure gauge 23 is all at zero, it means that the pipe body 11 is completely blocked. Then the drive mechanism 6, sealing end cap 19, channel pipe 20, and opening and closing part 2 can be unscrewed, so that the vulnerable parts (the sealing rings need to be replaced due to aging) can be replaced without sealing the pipe, which can greatly save costs.

[0053] The opening and closing component 2 of this invention is cylindrical, which can withstand extremely high water pressure compared to traditional gate valves. As a result, the opening and closing component does not deform after long-term use and is easy to open and close. In addition, the cylindrical rotating core 12 is also cylindrical and can withstand extremely high water pressure without deformation. The gate valve has a long service life, is easy to operate, and has low operating costs, making it worthy of widespread application.

[0054] Although the present invention has been illustrated and described with reference to preferred embodiments, those skilled in the art will understand that various changes in form and detail are possible within the scope of the claims.

Claims

1. An electrically operated water power gate valve comprising a valve body having a transverse flow passage formed therein, characterised in that: The valve body is provided with an opening and closing member for opening and closing the transverse flow channel, the opening and closing member is cylindrical, the bottom of the opening and closing member is provided with an upper matching recess, the inner end surface of the upper matching recess is fixed with a sealing pad, the valve body is provided with a lower matching recess, the lower matching recess is fixed with a protrusion matched with the upper matching recess; The valve body is provided with a longitudinal channel communicated with the transverse flow channel, the longitudinal channel is fixed with a sleeve, the inner contour bottom end of the sleeve is provided with a "V"-shaped support table, the support table is provided with a circular annular groove, the circular annular groove is provided with a sealing ring, the top end of the opening and closing member is provided with a conical compression table, the inner contour surface of the sleeve is provided with a self-lubricating metal layer; The opening and closing member is fixed with a cylindrical rod, the bottom end of the cylindrical rod is deeply inserted into the opening and closing member cavity and is fixed at the outer end surface of the recess, the outer contour surface of the cylindrical rod is provided with a thread, the cylindrical rod is provided with a rotation stopping plane, the valve body is fixed with an anti-rotation plate matched with the rotation stopping plane, the valve body is fixed with a circular annular protrusion, the circular annular protrusion is provided with a circular limiting slot, the circular limiting slot is rotatably connected with a rotating block, the rotating block is provided with a threaded through hole matched with the thread of the cylindrical rod; The top end of the valve body is fixed with a driving mechanism, the driving mechanism comprises a housing, the housing is rotatably connected with a first bevel gear, the housing is rotatably connected with a second bevel gear engaged with the first bevel gear, the housing is fixed with a first driving motor driving the first bevel gear to rotate, the bottom surface of the second bevel gear is fixed with a rotating shaft fixed with the rotating block, the rotating shaft is provided with a through channel; The cavity of the opening and closing member is fixed with a pair of upper and lower symmetrical conical support frames; The protrusion is provided with a socket, the cylindrical rod is provided with an elliptical longitudinal through hole, the longitudinal through hole is inserted with a support rod, the support rod is provided with a threaded hole, the threaded hole is threadedly connected with a threaded rod, the housing is fixed with a second driving motor driving the threaded rod to rotate.

2. An electrically powered water valve according to claim 1, characterized in that: The inlet end and the outlet end of the valve body are provided with pipe bodies, the cavities of the pipe bodies are provided with threaded blind holes at upper and lower positions, the side ends of the two threaded blind holes are provided with moving sockets opened in the pipe bodies and communicated with the threaded blind holes, the cross section of the moving socket is larger than that of the threaded blind hole, a cylindrical rotating core is arranged between the two threaded blind holes, the cylindrical rotating core is provided with a radial channel hole, the top end and the bottom end of the cylindrical rotating core are fixed with plug blocks inserted into the moving sockets, the upper and lower ends of the cylindrical rotating core are provided with first threads threadedly connected with the two threaded blind holes respectively, the plug block at the upper end is fixed with a shaft rod extending out of the moving socket, the top end of the shaft rod is fixed with a hand wheel, the upper and lower ends of the two moving sockets are provided with first sealing rings; the two pipe bodies are connected with a communication pipe, the inlet end of the communication pipe is located to the left of the left cylindrical rotating core, the outlet end of the communication pipe is located to the right of the right cylindrical rotating core, the communication pipe is provided with a needle valve.

3. An electrically powered water valve according to claim 2, characterised in that: The lower side of the mobile jack is fixed with a round column, the bottom surface of the rotating core of the round column is provided with a jack channel, and the round column is matched in the jack channel.

4. An electrically powered water valve according to claim 3, characterised in that: Self-lubricating bushings are installed on the upper side of the two mobile jacks and the jack channel.

5. An electrically powered water valve according to claim 4, characterised in that: The top end of the valve body is fixed with a sealing end cover through fasteners, the top end of the sealing end cover is fixed with a channel pipe through fasteners, and the shell is installed on the channel pipe.

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