An upper-mounted C-shaped wear-resistant ball valve

Abstract

The application belongs to the technical field of C-shaped ball valves, and particularly relates to an upper-mounted C-shaped wear-resistant ball valve, which comprises a shell part, a sealing part and a ball part.

Description

A top-mounted C-shaped wear-resistant ball valve Technical Field

[0001] This invention belongs to the field of C-shaped ball valve technology, specifically a top-mounted C-shaped wear-resistant ball valve. Background Technology

[0002] With the rapid development of industries such as petrochemicals, power, coal chemicals, and polysilicon, processes are becoming increasingly advanced, operating conditions are becoming increasingly demanding, and the requirements for energy conservation and emission reduction are becoming increasingly stringent. Under certain harsh operating conditions, traditional metal hard-seal ball valves suffer from erosion and other effects, resulting in a significantly shortened service life. In contrast, the C-type high-performance wear-resistant ball valve, due to its special opening and closing structure, is frictionless, has low erosion and low wear, and is particularly suitable for harsh operating conditions such as those involving particles, viscous substances, erosion, crystallization, scaling, and wear.

[0003] Publication No. CN117128335B discloses a top-mounted ultra-low temperature C-type wear-resistant ball valve, including a valve body, a "C"-shaped ball rotatably connected to the valve body, a pad installed on the valve body, a top-mounted bracket fixedly connected to the pad, a drive mechanism installed on the top-mounted bracket, and the output end of the drive mechanism being connected to the "C"-shaped ball via an upper shaft.

[0004] Publication number CN111173953B relates to a high-temperature hexagonal hole wear-resistant ball valve, including a valve body, a valve cover, a ball, and a valve stem. The ball is disposed in the inner cavity of the valve body, the valve cover is fixed to the front side of the inner cavity of the valve body, the valve stem is connected to the upper end of the ball, and front and rear valve seats are disposed in the inner cavity on the front and rear sides of the ball. The rear valve seat is pressed and fixed in the valve body by a valve seat pressure ring, and the valve seat pressure ring is fixed in the valve body by bolts. The front valve seat passes through the valve cover.

[0005] When the ball valve needs to be partially opened to adjust the flow rate of the medium, the ball rotates at a certain angle and partially blocks the ball valve. At this time, the space inside the ball valve suddenly increases and the pressure decreases. As a result, bubbles are generated inside the medium and cavitation occurs downstream of the ball valve cavity, affecting its structural strength.

[0006] Furthermore, if the ball valve is used for a long time, the medium will continuously exert force on the valve seat and cause metal fatigue, thereby reducing the elastic compression sealing effect of the valve seat on the ball.

[0007] When the ball valve is opened from closed, due to the double eccentric setting of the ball and the elastic compression seal with the valve seat, the ball needs to rotate a certain angle and break away from the sealing state with the valve seat before it can continue to rotate to open the ball valve and allow the medium to flow inside the ball valve. This results in a jump in the flow regulation of the ball valve and reduces the accuracy of the flow regulation of the medium inside the ball valve.

[0008] Meanwhile, the medium inside the ball valve will flow along the outer surface of the front end of the ball. When the ball valve is fully open and the medium is in a low-speed flow state, but because the ball is in a static state for a long time and the viscosity of the medium increases due to low-speed flow, some impurities inside the medium will stick to the outer surface of the front end of the ball or settle inside the ball valve, thus affecting the flow of the subsequent medium. Summary of the Invention

[0009] To address the above problems, this invention provides a top-mounted C-shaped wear-resistant ball valve.

[0010] To achieve the above objectives, the present invention provides the following technical solution: a top-mounted C-shaped wear-resistant ball valve, comprising:

[0011] The housing includes a valve body and a valve chamber, through which the medium flows.

[0012] A sealing part, which is movably connected to the inside of the housing part, is used for resilient sealing when the ball valve is closed, including a valve seat, which is movably connected to the inside of the valve chamber;

[0013] The ball section, which is movably connected to the inside of the housing section, is used to regulate the flow rate of the medium inside the valve chamber. It includes a C-shaped ball and a mounting block. A plug is movably connected to one end of the mounting block. The mounting block has a moving hole inside. When the C-shaped ball rotates and the blocking area of ​​the medium increases, the amount of gas discharged into the valve chamber through the moving hole increases. When the C-shaped ball closes the valve chamber, the air flow inside the moving hole stops and the plug is elastically pressed against the valve seat.

[0014] The regulating part is movably connected above the ball part; it includes a vent pipe and a valve stem, and the vent pipe has an oblique hole inside for adjusting the amount of gas inside the moving hole.

[0015] This top-mounted C-shaped wear-resistant ball valve is simple to operate, safe and stable. The double eccentric setting improves the elastic compression sealing effect and provides precise control of the internal medium flow rate to meet actual use needs. It is easy and quick to assemble, has high control accuracy, strong adaptability, and avoids air bubbles in the valve chamber and cavitation on its inner wall.

[0016] Preferably, the housing portion further includes:

[0017] The feed chamber is located inside the valve body and on one side of the valve chamber. The medium flows into the valve chamber through the feed chamber.

[0018] The discharge chamber is located inside the valve body and on the other side of the valve chamber, through which the medium inside the valve chamber is discharged.

[0019] The actuation chamber, located at the connection between the discharge chamber and the valve chamber, is used to block and guide the mixed droplets of medium and gas. When the C-shaped ball rotates and partially blocks the valve chamber, the mixed droplets of medium and gas reach the actuation chamber and are eventually guided into the discharge chamber for discharge.

[0020] Preferably, the housing portion further includes:

[0021] The valve cover is threadedly fixed to the top of the valve body and is used to seal and fix the top of the valve body.

[0022] The packing is installed between the valve cover and the valve stem. A pressure plate is installed on the top of the packing, and a pressure sleeve is installed on the top of the pressure plate. The bottom of the pressure sleeve is threadedly fixed to the top of the valve cover.

[0023] The bracket is threadedly fixed to the top of the valve cover. A pressing ring is fixedly connected to the top outer surface of the vent pipe. A handle is fixedly connected to one side of the pressing ring. A reset body is fixedly connected to the bottom of the handle. The bottom of the reset body is fixedly connected to the top of the bracket. The reset body is elastic and has a locking part inside.

[0024] Preferably, the sealing part further includes:

[0025] A stepped trough is located between the valve chamber and the feed chamber;

[0026] The baffle is fixedly connected inside the stepped groove, and one side of the valve seat is movably connected inside the baffle to block and limit the valve seat on the side near the C-shaped ball.

[0027] The pressure ring is a sealing and movable connection inside the stepped groove, and the pressure ring and the valve seat are elastically connected by a sealing ring, which is used to elastically press the valve seat.

[0028] Preferably, the sealing part further includes:

[0029] The ash discharge ring is fixedly connected to the inner wall of the stepped groove away from the baffle, and the inner wall of the ash discharge ring matches the inner wall of the feed chamber to provide elastic support for the side wall of the valve seat. Multiple ash discharge grooves are evenly opened on the inner wall of the ash discharge ring.

[0030] The disc spring has one end elastically supported by the side wall of the ash removal ring and the other end elastically supported by the side wall of the pressure ring. The disc spring is elastic and applies an elastic support force to the pressure ring.

[0031] Preferably, the spherical portion further includes:

[0032] The linkage seat is fixedly connected to the top of the C-shaped ball, and the bottom circumferential side of the valve stem is fixedly connected to the insertion rod. The insertion rod is inserted and fixed to the linkage seat. The valve stem rotates and drives the C-shaped ball to rotate through the insertion rod and the linkage seat.

[0033] The connecting hole is located inside the linkage seat and is used for gas flow inside the inclined hole. One end of the connecting hole corresponds to the inclined hole through the matching hole, and the other end is connected to the moving hole. The matching hole is located inside the valve stem and the insert rod.

[0034] Preferably, the spherical portion further includes:

[0035] The push rod is sealed and movably connected inside the moving hole to drive the blockage body to move. The top of the push rod has a guide groove, and a pressure body is fixedly connected inside the guide groove. The top of the guide groove is connected to the end of the connecting hole away from the inclined hole, and the other end is connected to the inside of the moving hole.

[0036] A limiting ring is fixedly connected to the inner wall of the moving hole on the side away from the push rod, and is used to block and seal the moving hole. An elastic body is fixedly connected between the limiting ring and the push rod, and the elastic body is elastic.

[0037] The unidirectional body is fixedly connected inside the limiting ring and is used to discharge the gas inside the moving hole in one direction. The side walls of both the limiting ring and the unidirectional body are matched with the inner wall of the mounting block.

[0038] Preferably, the spherical portion further includes:

[0039] The inner cavity is located at the end of the C-shaped sphere and the mounting block, and the outer surface of the plug is in a sealing sliding connection with the inner wall of the inner cavity. The inner cavity is connected to the moving hole and is used to limit the movement direction of the plug.

[0040] The mounting hole has a C-shaped ball bottom, and a bottom shaft is fixedly connected to the bottom of the mounting hole. The outer surface of the bottom shaft is rotatably and sealingly connected to the bottom of the valve body.

[0041] Preferably, the valve stem's axis is eccentrically distributed with respect to the valve body's axis, and the valve stem's axis is eccentrically distributed with respect to the C-shaped ball's axis. The top of the oblique hole is horizontally positioned and the bottom is inclined. The height of the oblique hole gradually increases from one end to the other. The height of the bottom of the vent pipe and the bottommost end of the oblique hole is greater than the diameter of the matching hole, while the minimum height of the oblique hole is greater than the diameter of the matching hole.

[0042] Preferably, the valve chamber is located at the center of the valve body, the C-shaped ball is rotatably connected to the inside of the valve chamber, the top of the valve stem has a movable cavity, the inner wall of the movable cavity is rotatably connected to the outer surface of the vent pipe, and the mounting block is fixed to the two side walls of the C-shaped ball by bolts.

[0043] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0044] 1. This application, through the mutual cooperation of components such as valve stem and C-shaped ball, allows the medium to enter the valve chamber along the feed chamber. The double eccentric setting of the C-shaped ball and valve stem, as well as the valve stem and valve body, ensures that the C-shaped ball does not contact the valve seat during opening and closing, resulting in frictionless rotation that reduces wear and extends service life. Furthermore, after the C-shaped ball detaches from the valve seat, the medium washes away impurities along the surface of the C-shaped ball and the blockage body, and scrapes away particulate matter on the valve seat surface, reducing erosion.

[0045] 2. This application, through the mutual cooperation of components such as inclined holes and matching holes, ensures that when the C-shaped ball rotates and adjusts the flow rate inside the valve chamber, the gas inside the moving hole is continuously discharged and mixes with the bubbles inside the medium to form droplets. This avoids the generation of bubbles and cavitation of the valve chamber wall under the pressure reduction of the medium, effectively improving the removal effect of bubbles inside the medium and improving the durability and safety of the valve body.

[0046] 3. This application, through the cooperation of components such as the plug and the valve seat, ensures that when the ball valve is closed, the plug moves outward along the inner cavity and increases the elastic squeezing force with the valve seat, effectively guaranteeing the sealing and plugging effect on the medium; when the ball valve is opened, the plug moves inward along the inner cavity and breaks away from the elastic squeezing with the valve seat, so that when the valve stem is rotated and the C-shaped ball is rotated, there will be no jumping phenomenon in the medium flow rate, thus improving the accuracy of medium flow rate control.

[0047] 4. This application, through the cooperation of components such as push rods and guide grooves, allows the blockage body to continuously reciprocate inside the inner cavity and adjust the distance between the blockage body and the inner wall of the valve chamber when the medium flows at low speed for a long time. This adjusts the flow rate of the medium between the two, effectively flushing and cleaning the impurities attached to the outer surface of the C-shaped ball and the blockage body, as well as those deposited inside the valve chamber, ensuring the stability and continuity of the subsequent medium flow. Attached Figure Description

[0048] Figure 1 is a three-dimensional structural schematic diagram of the present invention;

[0049] Figure 2 is a frontal view of the internal three-dimensional structure of the present invention;

[0050] Figure 3 is an enlarged view of point A in Figure 2;

[0051] Figure 4 is a top-view three-dimensional structural diagram of the internal structure of the present invention;

[0052] Figure 5 is a three-dimensional structural diagram of the spherical part and the adjustment part of the present invention;

[0053] Figure 6 is a right-view three-dimensional structural diagram of the spherical part and the adjustment part of the present invention;

[0054] Figure 7 is a three-dimensional structural diagram of the spherical part of the present invention;

[0055] Figure 8 is a top view of the internal three-dimensional structure of the spherical part of the present invention;

[0056] Figure 9 is an enlarged view of point B in Figure 8;

[0057] Figure 10 is a three-dimensional structural diagram of the vent pipe portion of the present invention;

[0058] Figure 11 is a three-dimensional structural diagram of the valve stem portion of the present invention.

[0059] In the diagram: 1. Shell section; 101. Valve body; 102. Feed chamber; 103. Discharge chamber; 104. Valve chamber; 105. Flange; 106. Valve cover; 107. Packing; 108. Pressure plate; 109. Pressure sleeve; 110. Support; 111. Bottom shaft; 112. Actuation chamber; 2. Sealing section; 201. Valve seat; 202. Baffle; 203. Sealing ring; 204. Pressure ring; 205. Butterfly spring; 206. Ash discharge ring; 207. Stepped groove; 208. Ash discharge trough; 3. Ball section; 301. C-shaped ball 302. Linkage seat; 303. Connecting hole; 304. Moving hole; 305. Mounting block; 306. Push rod; 307. Elastic body; 308. Limiting ring; 309. One-way body; 310. Inner cavity; 311. Blocking body; 312. Mounting hole; 313. Guide groove; 314. Pressure body; 4. Adjustment part; 401. Vent pipe; 402. Pressing ring; 403. Handle; 404. Reset body; 405. Matching hole; 406. Inclined hole; 407. Valve stem; 408. Movable cavity; 409. Insert rod. Detailed Implementation

[0060] 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.

[0061] As shown in Figures 1 to 11, a top-mounted C-shaped wear-resistant ball valve includes: a housing 1, comprising a valve body 101 and a valve chamber 104, wherein the valve chamber 104 is located at the center of the valve body 101; a feed chamber 102, which is opened inside the valve body 101 and located on one side of the valve chamber 104, through which the medium flows into the valve chamber 104, thereby facilitating the flow of the medium; and a discharge chamber 103, which is opened inside the valve body 101 and located on the other side of the valve chamber 104, through which the medium inside the valve chamber 104 is discharged, thereby realizing the flow of the medium inside the valve body 101. The diameter of the discharge chamber 103 is slightly larger than the diameter of the feed chamber 102, thereby cooperating with the actuation chamber 112 to conveniently block and completely discharge the medium inside the valve chamber 104.

[0062] The actuation chamber 112 is located at the connection between the discharge chamber 103 and the valve chamber 104. The actuation chamber 112 is used to block and guide the mixed droplets of medium and gas. The actuation chamber 112 prevents droplets generated by the mixture of medium passing through the valve chamber 104 and gas discharged from the moving hole 304 from impacting the downstream side wall surface of the valve chamber 104. It guides these droplets to the downstream side of the discharge chamber 103. Specifically, when the C-shaped ball 301 rotates and partially blocks the valve chamber 104, the mixed droplets of medium and gas reach the end of the actuation chamber 112. The liquid is then guided to the discharge chamber 103 for discharge. Specifically, the actuation chamber 112 is an enlarged section relative to the feed chamber 102 and the discharge chamber 103. This allows the droplets to be smoothly guided to the downstream side of the discharge chamber 103 and prevents droplet collision. The ratio of the diameter of the feed chamber 102 to the diameter of the discharge chamber 103 is set to approximately 1:1.3, preferably less than 1:1.4. Setting the diameter ratio to 1.4 or less prevents a decrease in economic efficiency due to an increase in the diameter.

[0063] The valve cover 106 is threadedly fixed to the top of the valve body 101, and is used to seal and fix the top of the valve body 101. The valve cover 106 seals the top of the valve body 101, thus realizing the top-mounted design. That is, when the C-shaped ball 301 needs to be repaired or replaced, the valve cover 106 can be opened and the C-shaped ball 301 can be taken out upwards. The packing 107 is sealed between the valve cover 106 and the valve stem 407. The setting of the packing 107 ensures the sealing effect between the valve stem 407 and the valve cover 106, and prevents the medium from leaking upwards along the valve cover 106. A pressure plate 108 is installed on the top of the packing 107, and a pressure sleeve 109 is installed on the top of the pressure plate 108. The bottom of the pressure sleeve 109 is threadedly fixed to the top of the valve cover 106. The pressure sleeve 109, together with the pressure plate 108, seals and limits the packing 107, and prevents the packing 107 from falling off and being lost during the rotation of the valve stem 407.

[0064] A bracket 110 is threadedly fixed to the top of the valve cover 106. A knob is movably connected inside the bracket 110, and the knob is fixedly connected to the valve stem 407, causing the valve stem 407 to rotate and adjust the medium flow rate. A pressing ring 402 is fixedly connected to the top outer surface of the vent pipe 401. A handle 403 is fixedly connected to one side of the pressing ring 402, facilitating the up-and-down movement of the vent pipe 401 by the pressing ring 402. A reset body 404 is fixedly connected to the bottom of the handle 403. The reset body 404 is elastic and... The bottom of the reset body 404 is fixedly connected to the top of the bracket 110, and the reset body 404 is provided with a locking part. That is, when the handle 403 presses the reset body 404 to a certain height, the locking part works and locks the position of the handle 403. When the handle 403 needs to be reset, the locking part stops working and drives the handle 403 to reset under the elastic force of the reset body 404. The handle 403 drives the air tube 401 to reset synchronously through the pressing ring 402. This setting improves the accuracy of adjusting the height of the air tube 401.

[0065] The sealing part 2, which is movably connected inside the housing part 1, is used for elastic sealing when the ball valve is closed. It includes a valve seat 201, which is movably connected inside the valve chamber 104. The valve seat 201 moves within the valve chamber 104 to adjust the elastic sealing effect accordingly. A stepped groove 207 is formed between the valve chamber 104 and the feed chamber 102. The diameter of the stepped groove 207 increases from the feed chamber 102 to the discharge chamber 103, facilitating subsequent elastic support and installation of the valve seat 201. A baffle 202 is fixedly connected inside the stepped groove 207. The position of the baffle 202 remains unchanged, and one side of the valve seat 201... The valve seat 201 is movably connected inside the baffle 202 and is used to block and limit the valve seat 201 near the C-shaped ball 301. That is, the baffle 202 limits the position of the valve seat 201 to prevent the valve seat 201 from detaching from the stepped groove 207 under the elastic force of the butterfly spring 205 and the impact force of the medium and affecting the subsequent sealing effect. The pressure ring 204 is movably connected inside the stepped groove 207 and is elastically connected to the valve seat 201 through the sealing ring 203. It is used to elastically press the valve seat 201. The movement of the pressure ring 204 drives the valve seat 201 to move synchronously through the sealing ring 203.

[0066] The ash discharge ring 206 is fixedly connected to the inner wall of the stepped groove 207 away from the baffle 202, and the inner wall of the ash discharge ring 206 matches the inner wall of the feed chamber 102. It is used to elastically support the side wall of the valve seat 201. The medium inside the feed chamber 102 directly enters the ash discharge ring 206 for flow. Multiple ash discharge grooves 208 are evenly opened on the inner wall of the ash discharge ring 206. Impurities flow inside the ash discharge grooves 208. The impurities inside the medium flow into the ash discharge grooves 208 for storage, which is convenient for subsequent cleaning. The butterfly spring 205 is elastically supported at one end to the side wall of the ash discharge ring 206 and at the other end to the side wall of the pressure ring 204. The butterfly spring 205 is elastic and applies an elastic support force to the pressure ring 204. The position of the ash discharge ring 206 remains unchanged. The pressure ring 204 is elastically supported by the elastic force of the butterfly spring 205. The pressure ring 204 elastically supports the valve seat 201 through the sealing ring 203.

[0067] The ball part 3, movably connected inside the housing part 1, is used to adjust the flow rate of the medium inside the valve chamber 104. Specifically, rotating the ball part 3 at different angles adjusts the amount of medium flowing inside the valve chamber 104. It includes a C-shaped ball 301 and a mounting block 305. A blockage body 311 is movably connected to one end of the mounting block 305. Each mounting block 305 has a moving hole 304 inside. The C-shaped ball 301 can rotate inside the valve chamber 104, causing the mounting block 305 to rotate synchronously. The C-shaped ball 301 adjusts the blocking area of ​​the feed chamber 102, correspondingly adjusting the flow rate of the medium inside the valve chamber 104. The mounting block 305 is fixed to the two side walls of the C-shaped ball 301 by bolts, facilitating the disassembly and installation of the mounting block 305 while ensuring the structural integrity of the C-shaped ball 301. When the C-shaped ball 301 rotates and increases the area of ​​the medium blockage, the amount of gas discharged into the valve chamber 104 through the moving hole 304 inside the mounting block 305 increases, stabilizing the pressure inside the valve chamber 104. The gas discharged from the moving hole 304 can mix with the medium, thus preventing the medium from reaching the valve chamber 104 along the C-shaped ball 301 and causing a decrease in medium pressure due to the increased volume, resulting in bubbles and corresponding cavitation on the inner wall of the valve chamber 104. When the C-shaped ball 301 closes the valve chamber 104, the gas flow inside the moving hole 304 stops, and the blockage body 311 is elastically pressed against the valve seat 201. The elastic extrusion force between the blockage body 311 and the valve seat 201 can be adjusted accordingly, preventing metal fatigue of the butterfly spring 205 from affecting the subsequent sealing quality after long-term use.

[0068] The linkage seat 302 is fixedly connected above the C-shaped ball 301, and the bottom circumferential side of the valve stem 407 is fixedly connected to the insertion rod 409. The insertion rod 409 is inserted and fixed to the linkage seat 302. The rotation of the valve stem 407 drives the C-shaped ball 301 to rotate through the insertion rod 409 and the linkage seat 302. The rotation of the C-shaped ball 301 drives the mounting blocks 305 on both sides to rotate synchronously, thereby realizing the precise adjustment of the rotation angle of the C-shaped ball 301. The connecting hole 303 is opened inside the C-shaped ball 301 for the gas flow inside the inclined hole 406. Gas flows inside the connecting hole 303. One end of the connecting hole 303 corresponds to the inclined hole 406 through the matching hole 405. The matching hole 405 is opened inside the valve stem 407 and the insertion rod 409. Therefore, the gas inside the inclined hole 406 enters the connecting hole 303 through the matching hole 405.

[0069] Push rod 306 is movably and sealingly connected inside moving hole 304 to move plug 311. When push rod 306 moves inside moving hole 304, it simultaneously moves plug 311. A guide groove 313 is provided at the top of push rod 306, and a pressure body 314 is fixedly connected inside guide groove 313. Pressure body 314 can be a baffle structure connected by a torsion spring. When the gas pressure inside guide groove 313 is greater than the torsion spring torque, the baffle opens, and the gas inside guide groove 313 enters and flows into moving hole 304. The top of guide groove 313 is connected to the end of connecting hole 303 away from inclined hole 406, and the other end... Since the guide groove 313 is connected to the interior of the moving hole 304 and its length is greater than the diameter of the connecting hole 303, when the push rod 306 moves the guide groove 313 inside the moving hole 304, the bottom of the connecting hole 303 is always connected to the top of the connecting hole 303. The gas inside the connecting hole 303 first enters the guide groove 313 and, under the action of the pressure body 314, drives the push rod 306 to move inside the moving hole 304. When the pressure inside the guide groove 313 reaches the preset pressure value set by the pressure body 314, the pressure body 314 opens, and the gas inside the guide groove 313 enters the moving hole 304 to flow.

[0070] A limiting ring 308 is fixedly connected to the inner wall of the moving hole 304 on the side away from the push rod 306. It is used to block and seal the moving hole 304, allowing gas inside the moving hole 304 to escape along the inside of the limiting ring 308. An elastic body 307 is fixedly connected between the limiting ring 308 and the push rod 306. The elastic body 307 is elastic; when the air pressure inside the guide groove 313 decreases, the elastic body 307 causes the push rod 306 to move in the opposite direction along the moving hole 304 to return to its original position. A one-way body 309 is fixedly connected inside the limiting ring 308. The part is used to discharge the gas inside the moving hole 304 in one direction. The one-way body 309 is set so that the gas inside the moving hole 304 can only be discharged outward along the inside of the limiting ring 308. The one-way body 309 can be set as a lever structure. The lever is located outside the limiting ring 308. Therefore, when the gas flows inside the limiting ring 308, the lever rotates outward and opens the moving hole 304. The gas inside the moving hole 304 is discharged outward, and the medium inside the valve chamber 104 cannot flow back to the moving hole 304 along the one-way body 309, causing leakage.

[0071] The sidewalls of the limiting ring 308 and the one-way body 309 are matched with the inner walls of the C-shaped ball 301 and the mounting block 305. When the one-way body 309 is opened, there is less surrounding medium flowing around it, and the medium will not directly impact the one-way body 309. Therefore, the impact on the opening of the one-way body 309 is reduced, thereby ensuring the smoothness of the C-shaped ball 301 and the mounting block 305 and ensuring the stability and efficiency of the medium flow. In addition, the valve stem 407 and the insert rod 409 are provided with pressure relief holes, which are located on the opposite side of the inclined hole 406 (not shown in the figure). When the valve stem 407 moves upward to a certain height, the gas inside the matching hole 405 is discharged along the pressure relief hole, thereby realizing the elastic reset function of the push rod 306.

[0072] The inner cavity 310 is located at the end of the C-shaped ball 301 and the mounting block 305. The outer surface of the plug 311 is slidably connected to the inner wall of the inner cavity 310. The inner cavity 310 is connected to the moving hole 304 to limit the movement direction of the plug 311. Therefore, when the push rod 306 is subjected to the elastic force of the elastic body 307 and moves along the moving hole 304, the push rod 306 synchronously drives the plug 311 to move along the inner cavity 310 and adjusts the extension amount of the plug 311, thereby correspondingly adjusting the elastic extrusion force between the plug 311 and the valve seat 201. The mounting hole 312 is located at the bottom of the C-shaped ball 301. The bottom shaft 111 is fixedly connected to the bottom of the mounting hole 312. The outer surface of the bottom shaft 111 is rotatably connected to the bottom of the valve body 101. The rotational stability of the C-shaped ball 301 is improved by the rotational connection between the bottom shaft 111 and the valve body 101.

[0073] Adjustment unit 4 is movably connected above ball part 3; it is used to adjust the rotation angle of ball part 3 inside valve chamber 104. It includes vent pipe 401 and valve stem 407. Vent pipe 401 can move up and down and rotate inside valve stem 407 to adjust the air flow. At the same time, the top of vent pipe 401 is connected to a hose. Gas is introduced into the hose. When the gas reaches the inside of valve chamber 104, it can mix with the bubbles generated when the medium pressure decreases to form droplets, thereby avoiding the bubbles from causing cavitation on the downstream inner wall of valve chamber 104.

[0074] The vent pipe 401 has an inclined hole 406 inside, which is used to adjust the amount of gas inside the moving hole 304. The gas inside the vent pipe 401 is discharged along the inclined hole 406. The axis of the valve stem 407 is eccentrically distributed with the axis of the valve body 101, and the axis of the valve stem 407 is eccentrically distributed with the axis of the C-shaped ball 301. The offset of the valve stem 407 on the two planes generates a double vector cam motion of rotation and translation of the C-shaped ball 301. Therefore, when the valve is closed, the C-shaped ball 301 and the valve seat 201 generate a torque seal of cam wedge tightening. The power of this torque seal comes from the handle, gear, and actuator. From a mechanical principle perspective, it ensures that a tight shut-off is achieved without relying on the butterfly spring 205 or process pressure. This double eccentric setting further improves the wedge-shaped compression sealing effect between the subsequent plug 311 and the valve seat 201.

[0075] Meanwhile, since the valve seat 201 can only move slightly along the flow path, during the process of the valve opening from closed, once the C-shaped ball 301 rotates to a certain angle, the C-shaped ball 301 and the mounting block 305 instantly detach from the valve seat 201. At this time, the torque on the valve stem 407 is only the frictional torque between the packing 107 and the valve cover 106 and the frictional torque between the C-shaped ball 301 and the sealing bearing. The resistance to opening the valve is very low, referred to as micro-torque. Conversely, during the process of the valve closing from open, the pressure difference between the inlet chamber 102 and the outlet chamber 103 can be ignored. At this time, the torque on the valve stem 407 is only the frictional torque of the packing 107 and the valve cover 106. The resistance to closing the valve is very low. Only when fully closed does the valve torque suddenly increase. The greater the valve closing force, the better the valve sealing effect.

[0076] The top of the inclined hole 406 is horizontal and the bottom is inclined. The height of the inclined hole 406 gradually increases from one end to the other. The height of the bottom of the vent pipe 401 and the bottommost end of the inclined hole 406 is greater than the diameter of the matching hole 405, while the minimum height of the inclined hole 406 is greater than the diameter of the matching hole 405. The structural dimensions of the inclined hole 406 further ensure its overlap and connection with the matching hole 405. The top of the valve stem 407 has a movable cavity 408. The inner wall of the movable cavity 408 is sealed and rotatably connected to the outer surface of the vent pipe 401. The pressure relief hole is connected to the movable cavity 408. The gas inside the matching hole 405 reaches the pressure relief hole along the movable cavity 408 and is discharged, thereby adjusting the gas pressure inside the guide groove 313. Flanges 105 are symmetrically fixedly connected to both sides of the valve body 101. The flanges 105 improve the connectivity of the ball valve.

[0077] When the ball valve needs to be partially opened to regulate the medium flow, the C-shaped ball 301 and the mounting block 305 rotate at a certain angle and partially block the feed chamber 102. At this time, when the medium enters the valve chamber 104 along the feed chamber 102, the internal space suddenly increases and the pressure decreases, which in turn generates bubbles inside the medium and causes cavitation downstream of the valve chamber 104, affecting its structural strength. Furthermore, if the ball valve is used for a long time, the medium continuously applies force to the valve seat 201, causing metal fatigue of the internal butterfly spring 205, thereby reducing the elastic support effect of the butterfly spring 205 on the valve seat 201 and ultimately affecting the elastic compression sealing effect between the valve seat 201 and the block 311. When the ball valve is opened from closed, due to the C-shaped ball 301, the medium rotates at a certain angle and partially blocks the feed chamber 102. Because of its own double eccentric setting and elastic compression seal with valve seat 201, after valve stem 407 drives C-shaped ball 301 and mounting block 305 to rotate a certain angle and disengage from the sealing state with valve seat 201, the medium inside feed chamber 102 can enter valve chamber 104 to flow after C-shaped ball 301 continues to rotate, resulting in a jump in flow regulation and reducing the accuracy of flow regulation of medium inside ball valve. At the same time, when ball valve is fully open and medium is in a low-speed flow state, medium inside valve chamber 104 will flow along the front end of block body 311. Then some impurities inside the medium will adhere to the outer surface of C-shaped ball 301 and block body 311 or settle inside valve chamber 104, thus affecting the flowability of subsequent medium.

[0078] To address the aforementioned issues, in actual use, the top-mounted C-shaped wear-resistant ball valve is first installed by bolting the mounting block 305 to both sides of the C-shaped ball 301, with the connecting hole 303 connected to the matching hole 405. The valve cover 106 is then opened, and the C-shaped ball 301 is placed inside the valve chamber 104. Simultaneously, the valve cover 106 is inserted and fixed along the outer surface of the valve stem 407, facilitating subsequent replacement and maintenance of the C-shaped ball 301. Finally, the valve body 101 is connected to the pipeline via the flange 105. The medium enters the valve chamber 104 along the feed chamber 102 and is finally discharged along the discharge chamber 103. The valve stem 407 drives the C-shaped ball 301 and the mounting block 305 to the initial position. The inner wall of the C-shaped ball 301 and the mounting block 305 is parallel to the flow direction of the medium inside the valve chamber 104, which further ensures the stability and smoothness of the medium flow. In addition, some of the medium flows at the front end of the blockage body 311, which further realizes the comprehensive flow cleaning of the blockage body 311 and the C-shaped ball 301 by the medium.

[0079] Simultaneously, under the elastic force of the reset body 404, the handle 403 drives the pressing ring 402 to the initial height. The pressing ring 402 drives the vent pipe 401 to the initial height inside the movable cavity 408 inside the valve stem 407. The oblique hole 406 and the matching hole 405 are misaligned and blocked. The gas inside the vent pipe 401 cannot flow through the matching hole 405. Then, under the elastic force of the elastic body 307, the push rod 306 is driven to the initial position. The push rod 306 drives the blocking body 311 to the initial position. The blocking body 311 and the inner wall of the inner cavity 310 are at the initial distance.

[0080] Subsequently, with the continuous use of the ball valve, when it is necessary to adjust and reduce the flow rate inside the valve chamber 104, the valve stem 407 rotates and drives the C-shaped ball 301 and the mounting block 305 to rotate at a certain angle. The C-shaped ball 301 and the mounting block 305 partially block the feed chamber 102. The medium inside the feed chamber 102 enters the valve chamber 104 through the open position after being blocked and guided by the C-shaped ball 301 and the mounting block 305. At this time, since the volume of the valve chamber 104 is greater than the medium flow rate, the medium pressure decreases and some bubbles are generated. These bubbles flow downstream inside the valve chamber 104 and are prone to causing cavitation on the inner wall of the valve chamber 104.

[0081] At this time, because the valve stem 407 drives the C-shaped ball 301 and the mounting block 305 to rotate, while the position of the vent pipe 401 remains unchanged, the valve stem 407 drives the matching hole 405 to rotate synchronously. The matching hole 405 partially overlaps with the inclined hole 406. The gas inside the vent pipe 401 enters the matching hole 405 along the inclined hole 406. The gas inside the matching hole 405 enters the multiple guide grooves 313 along the connecting hole 303. The air pressure inside the guide grooves 313 continuously increases and drives the push rod 306 to move along the moving hole 304 to squeeze the elastic body 307 towards the end closer to the limiting ring 308. When the push rod 306 moves, it simultaneously drives the plug 311 to move along the inner cavity 310 to the end and seals the inner cavity 310, preventing the medium from entering the inner cavity 310 through the gap between the plug 311 and the inner cavity 310 and affecting the subsequent elastic compression blockage of the plug 311 and the valve seat 201. At the same time, the plug 311 moves along the inner cavity 310 and reduces its extension length, thereby preventing the C-shaped ball 301 and the mounting block 305 from elastically squeezing and contacting the valve seat 201 during the rotation of the plug 311 and affecting the accuracy of its subsequent flow regulation.

[0082] Then, when the pressure inside the guide channel 313 reaches the preset pressure value set by the pressure body 314, the pressure body 314 opens, and the gas inside the guide channel 313 enters the moving hole 304 and is discharged outward along the moving hole 304 and the one-way body 309, thereby realizing the flow and circulation of gas. After the gas is discharged along the moving hole 304, it faces the inside of the valve chamber 104. The gas mixes with the medium flowing into the valve chamber 104 to form droplets, thereby stabilizing the medium pressure and preventing the generation of bubbles inside the valve chamber 104. This effectively avoids the cavitation phenomenon of bubbles on the inner wall of the valve chamber 104. The droplets continue to reach the actuation chamber 112 along the valve chamber 104 and are discharged along the discharge chamber 103 under the blocking and guiding effect of the actuation chamber 112, thereby ensuring the stability of the gas pressure inside the valve chamber 104 and the uniformity and stability of the medium.

[0083] Furthermore, as the required flow rate inside valve chamber 104 continuously decreases, the rotation angle of valve stem 407 continuously increases. Correspondingly, valve stem 407 drives the C-shaped ball 301 and mounting block 305 to continuously increase their rotation angles. This increases the blocking area of ​​the C-shaped ball 301 and mounting block 305 inside the feed chamber 102. Consequently, the flow rate of the medium inside the feed chamber 102 entering valve chamber 104 along the gap between the side wall of mounting block 305 and the inner wall of feed chamber 102 continuously decreases. This leads to a continuous decrease in pressure inside valve chamber 104 and an increase in the number of air bubbles generated. The cavitation phenomenon caused by these air bubbles on the inner wall of valve chamber 104 becomes increasingly severe. As the valve stem 407 rotates, the overlapping area between the matching hole 405 and the inclined hole 406 increases. This increases the amount of gas entering the matching hole 405 through the inclined hole 406 from the vent pipe 401. The amount of gas entering the guide groove 313 through the connecting hole 303 from the matching hole 405 also increases. Finally, the amount of gas discharged through the guide groove 313 and the moving hole 304 increases. This improves the mixing efficiency of the gas with the bubbles generated by the medium inside the valve chamber 104, effectively preventing cavitation of the inner wall of the valve chamber 104 and its impact on the quality of the inner wall.

[0084] When the ball valve needs to be closed, the valve stem 407 rotates and drives the C-shaped ball 301 and the mounting block 305 to rotate 90 degrees and reach the end of the feed chamber 102. At this time, the double eccentric structure of the C-shaped ball 301 makes the block body 311 located at the valve seat 201. Due to the air pressure of the gas inside the guide groove 313, the push rod 306 squeezes the elastic body 307 to the end close to the limit ring 308. The push rod 306 simultaneously drives the block body 311 to be located inside the inner cavity 310. Therefore, the block body 311 is not elastically squeezed and sealed with the valve seat 201.

[0085] At this point, by pulling the handle 403 to reset the body 404, the pressing ring 402 moves upward. The pressing ring 402 moves the vent pipe 401 upward, causing the inclined hole 406 to disengage from the matching hole 405. The gas inside the inclined hole 406 no longer flows into the matching hole 405, and the height of the vent pipe 401 is higher than the top of the matching hole 405. The matching hole 405 is connected to the pressure relief hole through the movable cavity 408. The gas inside the moving hole 304 is discharged along the one-way body 309 and into the guide groove 313. After the gas is no longer introduced and is discharged in the reverse direction along the pressure relief hole, the air pressure inside the guide groove 313 continuously decreases. Under the elastic force of the elastic body 307, the push rod 306 moves in the reverse direction along the moving hole 304 and drives the plug body 311 to move in the reverse direction along the inner cavity 310. The plug body 311 elastically squeezes the valve seat 201, and the valve seat 201 elastically squeezes the butterfly spring 205 through the sealing ring 203 and the pressure ring 204, so as to avoid the gap between the valve seat 201 and the plug body 311 and affect the subsequent sealing effect on the medium.

[0086] When the ball valve is used for a long time, the medium inside the feed chamber 102 continuously exerts a backward pushing force on the pressure ring 204 and the valve seat 201. Consequently, the pressure ring 204 continuously stretches the butterfly spring 205. Combined with the continuous scouring of the butterfly spring 205 by the medium, its metal strength is affected. Therefore, the elastic compressive force subsequently exerted by the butterfly spring 205 on the pressure ring 204 is affected. Thus, as the ball valve is used, when the metal strength of the butterfly spring 205 weakens, and some medium still flows inside the valve chamber 104, the time it takes for the vent pipe 401 to drive the inclined hole 406 upward increases. Therefore, the guide groove 313... As the amount of gas discharged in the reverse direction along the pressure relief hole increases, the internal air pressure value of the guide groove 313 decreases. The elastic body 307 applies elastic force to the push rod 306, causing the push rod 306 to drive the plug body 311 to move outward along the inner cavity 310. The elastic compressive force between the plug body 311 and the valve seat 201 increases. Under the compressive action of the plug body 311, the valve seat 201 compresses the butterfly spring 205 in the reverse direction through the sealing ring 203 and the pressure ring 204, further preventing the butterfly spring 205 from changing its own metal strength after long-term use and affecting the subsequent elastic sealing effect between the valve seat 201 and the plug body 311.

[0087] After the valve seat 201 and the plug 311 are sealed and plugged, the handle 403 moves the vent pipe 401 downward to the sealing height through the pressing ring 402. This sealing height is higher than the initial height. The vent pipe 401 moves the inclined hole 406 to the sealing height. The inclined hole 406 and the matching hole 405 are misaligned. The gas inside the vent pipe 401 no longer enters the matching hole 405. The corresponding moving hole 304 no longer flows gas and is discharged outward. The matching hole 405 is no longer connected to the moving chamber 408 and is depressurized. At this time, the self-locking component of the reset body 404 is closed, and the ball valve is in a stable closed state.

[0088] When the ball valve needs to be opened, due to the elastic compression between the valve seat 201 and the plug 311, directly rotating the valve stem 407 cannot disengage the C-shaped ball 301 and the valve seat 201. This will cause a delay in opening the C-shaped ball 301 and adjusting the medium flow rate. When the plug 311 disengages from the valve seat 201, the medium inside the feed chamber 102 will suddenly flow along the feed chamber 102 to the valve chamber 104, causing a jump in the adjustment of the medium flow rate and affecting the accuracy of the adjustment. At the same time, at the moment the ball valve is opened, because the C-shaped ball 301 and the plug 311 still partially block the feed chamber 102, the flow rate and pressure of the medium inside the feed chamber 102 decrease when it enters the valve chamber 104. The medium will generate a large number of bubbles and produce cavitation, reducing the strength of the inner wall of the valve chamber 104.

[0089] Therefore, before rotating the valve stem 407, the locking part inside the reset body 404 is opened. At the same time, the reset body 404 drives the handle 403 to move downward to the initial height. The handle 403 drives the vent pipe 401 downward through the pressing ring 402. The vent pipe 401 drives the inclined hole 406 downward and re-aligns it with the matching hole 405. The gas inside the inclined hole 406 enters the guide groove 313 along the matching hole 405 and the connecting hole 303, increasing the gas pressure inside the guide groove 313. The push rod 306 compresses the elastic body 307 and moves it closer to the limiting ring 308. The push rod 306 also causes the blocking body 311 to move inward along the inner cavity 310. The blocking body 311 is released from the elastic compression state of the valve seat 201. At this time, the valve rod 407 is rotated to drive the C-shaped ball 301 and the mounting block 305 to rotate and release the blocking state of the feed chamber 102. The medium inside the feed chamber 102 continuously enters the valve chamber 104 for flow, resulting in higher adjustment accuracy and better adjustment effect.

[0090] Meanwhile, as the gas pressure inside the guide channel 313 increases and reaches the preset pressure value set by the pressure body 314, the pressure body 314 opens. The gas inside the guide channel 313 enters the moving hole 304 along the pressure body 314 and continues to be discharged into the valve chamber 104 along the one-way body 309. The gas mixes with the bubbles after the medium enters the valve chamber 104 to form droplets, which are then discharged along the discharge chamber 103 under the guiding action of the actuation chamber 112. This ensures the stability and bubble-free nature of the medium flow and avoids the generation of bubbles due to the decrease in pressure inside the medium, which would cause cavitation on the inner wall of the valve chamber 104 and affect the quality.

[0091] Then, the valve stem 407 rotates and drives the C-shaped ball 301 and the mounting block 305 to rotate in the opposite direction. According to the above process, the flow rate of the medium inside the feed chamber 102 into the valve chamber 104 continuously increases, the pressure inside the valve chamber 104 continuously increases, and the generated bubbles continuously decrease. Meanwhile, the overlapping area of ​​the inclined hole 406 and the matching hole 405 continuously decreases, the amount of gas discharged from the moving hole 304 continuously decreases, and the amount of dripping formed by the mixture of this gas and the bubbles inside the medium continuously decreases, so that the medium continues to flow steadily.

[0092] When the valve stem 407 drives the C-shaped ball 301 and the mounting block 305 to rotate 90 degrees in the opposite direction and be in the fully open state, the medium inside the feed chamber 102 enters the valve chamber 104 and is finally discharged along the discharge chamber 103. At this time, the inclined hole 406 and the matching hole 405 are completely blocked, the gas inside the inclined hole 406 no longer flows into the matching hole 405, the gas inside the moving hole 304 is discharged along the one-way body 309 and no more gas is discharged, and the air pressure value inside the guide groove 313 is closed after reaching the pressure value set by the pressure body 314. The push rod 306 and the blocking body 311 are both in a stable state, while some of the medium flows to the outer surface of the C-shaped ball 301 and the blocking body 311 to flow and achieve all-round flow flushing without dead angles.

[0093] If the medium is in a low-speed flow state for a long time, and the C-shaped ball 301 and the blockage body 311 are in a fully open state for a long time, the flow velocity of the medium on the outer surface of the C-shaped ball 301 and the blockage body 311 will decrease. Impurities inside the medium are likely to slowly adhere to the outer surface of the C-shaped ball 301 and the blockage body 311 or settle in the top of the valve chamber 104 and affect the subsequent flow of the medium. The flow velocity of the medium discharged along the discharge chamber 103 will decrease. Then the operator will drive the handle 403 to move up and down in a small range. The handle 403 drives the vent pipe 401 to move up and down inside the active chamber 408 through the pressing ring 402. The vent pipe 401 drives the inclined hole 406 to move up and down. The inclined hole 406 and the pressure relief hole reciprocate and communicate with the matching hole 405. The amount of gas inside the matching hole 405 changes in a small range.

[0094] When the vent pipe 401 moves the inclined hole 406 downward and partially overlaps with the matching hole 405, the gas inside the vent pipe 401 enters the matching hole 405 along the inclined hole 406. The gas inside the matching hole 405 enters the guide groove 313 along the connecting hole 303 and drives the push rod 306 to squeeze the elastic body 307 along the moving hole 304 towards the end near the limiting ring 308. The push rod 306 drives the blocking body 311 to move inward along the inner cavity 310. Afterward, when the vent pipe 401 moves the inclined hole 406 upward and disengages from blocking the matching hole 405, the gas inside the matching hole 405 enters the pressure relief hole along the movable cavity 408 and is discharged. The gas inside the guide groove 313 is discharged in the opposite direction along the connecting hole 303 to the matching hole. Inside 405, the air pressure inside the guide groove 313 decreases, and under the elastic force of the elastic body 307, it drives the push rod 306 to move in the opposite direction along the moving hole 304. The push rod 306 drives the blockage body 311 to move outward along the inner cavity 310. The above process is repeated continuously, so the blockage body 311 moves back and forth continuously inside the inner cavity 310. The distance between the blockage body 311 and the inner wall of the valve chamber 104 changes continuously, and the medium flow rate between the blockage body 311 and the inner wall of the valve chamber 104 changes continuously. As a result, the flow scouring force exerted by the medium on the outer surface of the C-shaped ball 301 and the blockage body 311 changes continuously, further realizing the self-cleaning effect under low medium speed conditions and avoiding the precipitation and adhesion of impurities inside the medium.

[0095] After the self-cleaning process is completed, the vent pipe 401 stops moving, and the above process is repeated to achieve precise control of the medium flow by the ball valve.

[0096] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0097] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A top-mounted C-shaped wear-resistant ball valve, characterized in that, include: The housing part (1) includes a valve body (101) and a valve chamber (104) in which the medium flows. The sealing part (2) is movably connected to the inside of the housing part (1) and is used for elastic sealing when the ball valve is closed. It includes a valve seat (201) which is movably connected to the inside of the valve chamber (104). The ball part (3) is movably connected to the inside of the housing part (1) and is used to regulate the flow rate of the medium inside the valve chamber (104). It includes a C-shaped ball (301) and a mounting block (305). One end of the mounting block (305) is movably connected to a block (311). The mounting block (305) is provided with a moving hole (304). When the C-shaped ball (301) rotates and the blockage area of ​​the medium increases, the moving hole (311) moves. 04) The amount of gas discharged into the valve chamber (104) increases; when the C-shaped ball (301) closes the valve chamber (104), the gas flow inside the moving hole (304) stops and the plug (311) is elastically pressed against the valve seat (201); the adjusting part (4) is movably connected above the ball part (3); it includes a vent pipe (401) and a valve stem (407), and the vent pipe (401) has an oblique hole (406) inside for adjusting the amount of gas inside the moving hole (304); the ball part (3) also includes: a linkage seat (302), which is fixedly connected above the C-shaped ball (301), and a plug rod (409) is fixedly connected to the bottom circumferential side of the valve stem (407), the plug rod (409) and the linkage seat (301) are connected to each other. 2) Insertion and fixing: The valve stem (407) rotates and drives the C-shaped ball (301) to rotate through the insert rod (409) and the linkage seat (302); the connecting hole (303) is opened inside the linkage seat (302) for gas flow inside the inclined hole (406), one end of the connecting hole (303) corresponds to the inclined hole (406) through the matching hole (405), and the matching hole (405) is opened inside the valve stem (407) and the insert rod (409); the push rod (306) is sealed and movablely connected inside the moving hole (304) for driving the blockage body (311) to move, and the top of the push rod (306) is provided with a guide groove (313), and a pressure body (314) is fixedly connected inside the guide groove (313). The top of the guide groove (313) is connected to one end of the connecting hole (303) away from the inclined hole (406), and the other end is connected to the inside of the moving hole (304); the limiting ring (308) is fixedly connected to the inner wall of the moving hole (304) away from the push rod (306) to block and seal the moving hole (304); an elastic body (307) is fixedly connected between the limiting ring (308) and the push rod (306), and the elastic body (307) is elastic; the one-way body (309) is fixedly connected to the inside of the limiting ring (308) to discharge the gas inside the moving hole (304) in one direction; the side walls of the limiting ring (308) and the one-way body (309) are matched with the inner wall of the mounting block (305);The valve stem (407) is eccentrically positioned at its axis relative to the valve body (101), and eccentrically positioned at its axis relative to the C-shaped ball (301). The oblique hole (406) is horizontally positioned at its top and inclined at its bottom. The height of the oblique hole (406) gradually increases from one end to the other. The height of the bottom of the vent pipe (401) relative to the bottommost point of the oblique hole (406) is greater than the diameter of the matching hole (405), and the minimum height of the oblique hole (406) is greater than the diameter of the matching hole (405).

2. The top-mounted C-shaped wear-resistant ball valve according to claim 1, characterized in that, The housing part (1) further includes: a feed chamber (102), which is opened inside the valve body (101) and located on one side of the valve chamber (104), through which the medium enters the valve chamber (104) via the feed chamber (102); a discharge chamber (103), which is opened inside the valve body (101) and located on the other side of the valve chamber (104), through which the medium inside the valve chamber (104) is discharged via the discharge chamber (103); and an actuation chamber (112), which is opened at the connection between the discharge chamber (103) and the valve chamber (104), for blocking and guiding the mixed droplets of medium and gas. When the C-shaped ball (301) rotates and partially blocks the valve chamber (104), the mixed droplets of medium and gas reach the end of the actuation chamber (112) and are finally guided to the discharge chamber (103) for discharge.

3. The top-mounted C-shaped wear-resistant ball valve according to claim 1, characterized in that, The housing part (1) further includes: a valve cover (106), which is threadedly fixed to the top of the valve body (101) for sealing and fixing the top of the valve body (101); packing (107), which is sealed between the valve cover (106) and the valve stem (407), a pressure plate (108) is installed on the top of the packing (107), a pressure sleeve (109) is installed on the top of the pressure plate (108), and the bottom of the pressure sleeve (109) is threadedly fixed to the top of the valve cover (106); a bracket (1 10), which is threadedly fixed to the top of the valve cover (106), and a pressing ring (402) is fixedly connected to the top outer surface of the vent pipe (401). A handle (403) is fixedly connected to one side of the pressing ring (402). A reset body (404) is fixedly connected to the bottom of the handle (403), and the bottom of the reset body (404) is fixedly connected to the top of the bracket (110). The reset body (404) is elastic, and a locking part is provided inside the reset body (404).

4. The top-mounted C-shaped wear-resistant ball valve according to claim 2, characterized in that, The sealing part (2) further includes: a stepped groove (207) which is opened between the valve chamber (104) and the feed chamber (102); a baffle (202) which is fixedly connected inside the stepped groove (207), and one side of the valve seat (201) is movably connected inside the baffle (202) for blocking and limiting the valve seat (201) near the C-shaped ball (301); a pressure ring (204) which is movably connected inside the stepped groove (207), and the pressure ring (204) and the valve seat (201) are elastically connected by a sealing ring (203) for elastically pressing the valve seat (201).

5. The top-mounted C-shaped wear-resistant ball valve according to claim 4, characterized in that, The sealing part (2) further includes: a ash discharge ring (206), which is fixedly connected to the inner wall of the stepped groove (207) away from the baffle (202), and the inner wall of the ash discharge ring (206) matches the inner wall of the feed chamber (102) for elastic support of the side wall of the valve seat (201). The inner wall of the ash discharge ring (206) is evenly provided with multiple ash discharge grooves (208); a butterfly spring (205), one end of which is elastically supported by the side wall of the ash discharge ring (206), and the other end is elastically supported by the side wall of the pressure ring (204). The butterfly spring (205) is elastic and applies an elastic support force to the pressure ring (204).

6. The top-mounted C-shaped wear-resistant ball valve according to claim 1, characterized in that, The ball part (3) also includes: an inner cavity (310), which is opened at the end of the C-shaped ball (301) and the mounting block (305), and the outer surface of the plug (311) is sealed and slidably connected to the inner wall of the inner cavity (310). The inner cavity (310) is connected to the moving hole (304) to limit the moving direction of the plug (311); and a mounting hole (312), which is opened at the bottom of the C-shaped ball (301). The bottom of the mounting hole (312) is fixedly connected to the bottom shaft (111), and the outer surface of the bottom shaft (111) is sealed and rotatably connected to the bottom of the valve body (101).

7. The top-mounted C-shaped wear-resistant ball valve according to claim 1, characterized in that, The valve chamber (104) is located at the center of the valve body (101). The C-shaped ball (301) is rotatably connected inside the valve chamber (104). The top of the valve stem (407) has a movable cavity (408). The inner wall of the movable cavity (408) is rotatably connected to the outer surface of the vent pipe (401). The mounting block (305) is threadedly fixed to the two side walls of the C-shaped ball (301) by bolts.

Images