Butterfly valve with high protection performance

Abstract

The invention discloses a butterfly valve with high protection performance, and relates to the technical field of valves. The valve comprises a valve body, a valve rod is vertically and rotatably installed on the valve body, the bottom end of the valve rod is located in the valve body and provided with a valve plate, and a motor used for driving the valve rod to rotate is installed on the valve body; and the water storage mechanism is mounted on the valve body. Part of liquid in the valve body is conveyed into the water storage cavity through the water storage mechanism, then when the valve plate in the open state needs to be closed, force can be applied to the liquid in the water storage cavity through the pressure applying mechanism so that the liquid can be squeezed into the drainage cavity, and then after the pressurized liquid in the water storage cavity is introduced into the drainage cavity, due to the fact that pressure is too large, the liquid cannot flow out of the drainage cavity. Due to the fact that the drainage grooves are formed in the valve body, pressurized liquid can form water columns when penetrating through the drainage grooves, the water columns are ejected out of the drainage grooves, metal hard objects or impurities on the inner wall of the valve body are washed away, friction between the valve plate and the valve body is effectively reduced, abrasion of the valve plate is reduced, the service life of the valve is prolonged, and the sealing effect of the valve is improved.

Description

Technical Field

[0001] The present application relates to the field of valve technology, and in particular to a butterfly valve with high protection performance. Background Art

[0002] In fluid control systems, butterfly valves are widely used in many fields such as petroleum, chemical industry, and water treatment as a common regulating and shutoff device. However, traditional butterfly valves often encounter some problems during long-term operation. For example, a butterfly valve and a butterfly valve seat disclosed in publication number CN116857376A include a valve pipe, flanges are symmetrically welded at both ends of the valve pipe, a support seat is provided at the center position of the top of the valve pipe, a mounting seat is provided at the top of the support seat, the mounting seat and the support seat are vertically rotatably inserted with the same valve stem, the bottom end of the valve stem extends into the interior of the valve pipe, a butterfly plate is inserted into the inner wall of the valve pipe, a connecting component for fixing the butterfly plate is provided on the side of the butterfly plate close to the valve stem, a valve seat is provided on the side of the butterfly plate away from the valve stem, a driving component for controlling the rotation of the butterfly plate is provided on the top of the valve stem, and a sealing component for sealing the valve pipe is provided at the intersection of the support seat and the valve stem. However, when the valve is in use, as metal impurities or foreign matter accumulate, these impurities may come from pipeline wear, improper maintenance, or impurities carried by the liquid flowing in the pipeline. When these impurities accumulate inside the valve, when the valve is closed, the metal impurities are easily stuck between the valve plate and the valve body, resulting in a loose seal or increasing the friction between the valve plate and the valve body, causing wear of the valve plate, and thus affecting the sealing performance of the valve.

[0003] Therefore, the present invention proposes a butterfly valve with high protection performance. Summary of the invention

[0004] The purpose of this application is to solve the problems in the above-mentioned background technology and provide a butterfly valve with high protection performance.

[0005] In order to achieve the above-mentioned purpose, this application specifically adopts the following technical solutions: A high protection performance butterfly valve, comprising: A valve body, on which a valve stem is vertically rotatably mounted, the bottom end of the valve stem is located in the valve body and is mounted with a valve plate, and a motor for driving the valve stem to rotate is mounted on the valve body; A water storage mechanism is installed on the valve body, and a water storage cavity is constructed at the thick part of the valve body wall, and part of the liquid in the valve body is transported to the water storage cavity through the water storage mechanism; A drainage mechanism, wherein a drainage cavity is constructed at the thick part of the valve body wall, and a plurality of drainage grooves are provided in a circular array on the inner circumference of the drainage cavity. When the valve plate is in a closed state, the valve plate blocks the drainage grooves. A plugging member for plugging the drainage grooves is installed in the drainage cavity, and the drainage cavity is connected to the water storage cavity; The pressure mechanism is installed on the valve body. When the water storage chamber is filled with liquid, the pressure mechanism is used to pressurize the liquid in the water storage chamber into the drainage chamber.

[0006] Furthermore, a plurality of sliding cavities are provided in a circular array at the thickness of the valve body wall, a liquid inlet connected to the interior of the valve body is provided on the sliding cavity, a filter screen is installed on the liquid inlet, the water storage mechanism includes a piston plate slidably installed in the sliding cavity, an annular cavity is constructed at the thickness of the valve body wall, a sliding ring is slidably installed in the annular cavity, a plurality of connecting convex plates are constructed on the side of the sliding ring close to the valve plate, the free ends of the plurality of connecting convex plates respectively pass through the sliding cavity and are connected to the plurality of piston plates, a water inlet hole connected to the water storage cavity is provided on the sliding cavity, a one-way valve is installed in the water inlet hole, and a driving component for driving the sliding ring to move is installed on the valve body.

[0007] Furthermore, the pressure mechanism includes an arc-shaped push plate horizontally slidably installed in the water storage chamber, a pressure spring is installed between the side of the arc-shaped push plate away from the water inlet hole and the water storage chamber, and a locking assembly is installed on the valve body. When the arc-shaped push plate moves to the locking assembly, the locking assembly limits the arc-shaped push plate, and when the arc-shaped push plate is limited by the locking assembly, the pressure spring is in a compressed state.

[0008] Furthermore, the locking assembly includes a mounting tube installed on the outside of the valve body, a wedge plate is slidably inserted in the mounting tube, a return spring is installed between the mounting tube and the wedge plate, the free end of the wedge plate is located in the water storage chamber, the inclined surface of the wedge plate is used to contact the arc-shaped push plate, and a toggle piece is installed on the valve body, and the toggle piece is used to toggle the wedge plate to move in a direction away from the valve body.

[0009] Furthermore, the toggle member includes a driving ring slidably mounted on the valve body, the driving ring is provided with a wedge-shaped protrusion at one end facing the mounting tube, the wedge plate is provided with a driving protrusion at one end located in the mounting tube and passing through the mounting tube, and the driving protrusion is provided with an inclined surface for contacting the inclined surface of the wedge-shaped protrusion.

[0010] Furthermore, the drive assembly includes a sliding frame plate horizontally slidably installed on the valve body, a connecting protrusion is constructed on the outer side of the sliding ring, the connecting protrusion passes through the valve body and is connected to the sliding frame plate, an installation cavity is constructed inside the valve body, a sliding rod slidably inserted into the installation cavity is horizontally constructed on the connecting protrusion, a return spring is installed between the sliding rod and the installation cavity, a forcing convex plate is constructed on one side of the sliding frame plate, a rotating rod is vertically rotatably installed on the valve body, a convex disk is constructed at the bottom of the rotating rod, and a forcing convex rod is eccentrically constructed at the bottom of the convex disk, which is used to contact the forcing convex plate, and a transmission member for driving the rotating rod to rotate is installed on the valve stem.

[0011] Furthermore, the transmission member comprises a connection plate sleeved on the valve stem, the bottom of the connection plate is configured with two arc-shaped racks in a circular array, and the top of the rotating rod is sleeved with a driven gear for meshing with the arc-shaped racks.

[0012] Furthermore, the driving ring is provided with a forcing long plate, one side of which is an inclined surface, so that the long plate is higher than the driven gear, and the circular array at the bottom end of the connecting plate is provided with two forcing rods for contacting the inclined surface of the forcing long plate.

[0013] Furthermore, the sealing member includes a connecting tube installed in a circular array in the drainage cavity, an arc-shaped sealing plate is slidably installed at one end of the connecting tube, a clamping spring is installed between the arc-shaped sealing plate and the connecting tube, and the arc-shaped sealing plate has a cutout at one end away from the corresponding connecting tube.

[0014] Furthermore, a sealing cover is installed on the outer side of the valve body, and the motor is installed on the sealing cover.

[0015] The beneficial effects of this application are as follows: The present application uses a water storage mechanism to transport part of the liquid inside the valve body to the water storage chamber. When the valve plate in the open state needs to be closed, the pressure mechanism will apply force to the liquid inside the water storage chamber to squeeze it into the drainage chamber. After the pressurized liquid in the water storage chamber is introduced into the drainage chamber, because the pressure is too large, the pressurized liquid will form a water column when passing through the drainage groove, and multiple drainage grooves will spray water columns, thereby washing away metal hard objects or impurities on the inner wall of the valve body, effectively reducing the friction between the valve plate and the valve body, reducing the wear of the valve plate, and thus improving the service life of the valve and the sealing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of this application; Figure 2 It is a schematic diagram of the structure of part of this application; Figure 3 This application Figure 2 Partial stereoscopic cutaway view; Figure 4 This application Figure 2 Another partial stereoscopic cross-sectional view; Figure 5 This application Figure 2 Schematic diagram from another perspective; Figure 6 This application Figure 5 Partial stereoscopic cutaway view; Figure 7 This application Figure 3 A magnified view of the structure at center; Figure 8 This application Figure 4A magnified view of the structure at B in the middle; Fig. 9 This application Figure 6 A magnified view of the structure at C in the middle; Fig.10 It is another structural diagram of this application; Fig.11 This application Fig.11 Partial stereoscopic cutaway view; Fig.12 It is a schematic diagram of another part of the structure of this application; Fig.13 This application Fig.12 Schematic diagram from another perspective; Figure numerals: 1, valve body; 2, valve stem; 3, valve plate; 4, water storage mechanism; 401, sliding chamber; 402, liquid inlet; 403, filter screen; 404, piston plate; 405, annular chamber; 406, sliding ring; 407, connecting convex plate; 408, water inlet hole; 409, one-way valve; 5, water storage chamber; 6, liquid discharge mechanism; 601, drainage chamber; 602, drainage groove; 603, blocking member; 6031, connecting cylinder; 6032, arc-shaped sealing plate; 6033, pressing spring; 6034, cutout; 7, pressure mechanism; 701, arc-shaped push plate; 702, pressure spring; 703, locking assembly ;7031, mounting cylinder;7032, wedge plate;7033, toggle member;70331, drive ring;70332, wedge-shaped protrusion;70333, driving protrusion plate;7034, return spring;8, drive assembly;801, sliding frame plate;802, connecting protrusion;803, mounting cavity;804, sliding rod;805, return spring;806, rotating rod;807, forcing protrusion rod;808, forcing protrusion plate;809, protrusion disk;9, transmission member;901, connecting disk;902, arc-shaped rack;903, driven gear;10, forcing long plate;11, forcing rod;12, sealing cover. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application.

[0018] like Figure 1-Figure 13 As shown, a high protection performance butterfly valve proposed in one embodiment of the present application includes: A valve body 1, on which a valve stem 2 is vertically rotatably mounted, the bottom end of the valve stem 2 is located in the valve body 1 and is mounted with a valve plate 3, and a motor for driving the valve stem 2 to rotate is mounted on the valve body 1, and the rotation of the motor drives the valve stem 2 to rotate, thereby realizing the rotation of the valve plate 3 connected to the valve stem 2; The water storage mechanism 4 is installed on the valve body 1. A water storage chamber 5 is constructed at the thick wall of the valve body 1. The water storage mechanism 4 is used to transport part of the liquid in the valve body 1 to the water storage chamber 5. That is to say, during the use of the valve body 1, part of the liquid remaining in the valve body 1 will be transported to the water storage chamber 5 through the water storage mechanism 4. The drainage mechanism 6 is a drainage cavity 601 constructed at the thick wall of the valve body 1. A plurality of drainage grooves 602 are provided in a circular array on the inner circumference of the drainage cavity 601. When the valve plate 3 is in a closed state, the valve plate 3 blocks the drainage grooves 602. A plugging member 603 for plugging the drainage grooves 602 is installed in the drainage cavity 601. The drainage cavity 601 is connected with the water storage cavity 5. That is to say, when the water storage cavity 5 is filled with liquid, the drainage cavity 601 is also filled with liquid at the same time. At this time, the plugging member 603 is in a closed state to prevent the water in the drainage cavity 601 and the water storage cavity 5 from flowing out of the drainage grooves 602. At the same time, the plugging member 603 can also prevent the liquid in the valve body 1 from entering the drainage cavity 601 from the drainage grooves 602. The pressure-applying mechanism 7 is installed on the valve body 1. When the water storage chamber 5 is full of liquid, the pressure-applying mechanism 7 is used to pressurize part of the liquid inside the water storage chamber 5 into the drainage chamber 601. When the valve plate 3 in the open state needs to be closed, the motor is started to drive the valve stem 2 to rotate. The valve stem 2 drives the valve plate 3 to rotate when rotating. When the valve plate 3 is about to be in the closed state and contact the inner circumference of the valve body 1, the pressure-applying mechanism 7 will apply force to the liquid inside the water storage chamber 5 to squeeze it into the drainage chamber 601. At this time, the blocking member 603 is in the open state and no longer blocks the drainage groove 602. After the pressurized liquid in the water storage chamber 5 is introduced into the drainage chamber 601, due to the excessive pressure, the pressurized liquid will form a water column when passing through the drainage groove 602, so that multiple drainage grooves 602 will spray out water columns, thereby washing away the metal hard objects or impurities on the inner wall of the valve body 1, so that the metal hard objects or impurities are washed away along the water flow inside the valve body 1, thereby preventing the valve plate 3 from being closed firmly due to the metal hard objects or impurities during subsequent closing, and effectively reducing the friction between the valve plate 3 and the valve body 1, reducing the wear of the valve plate 3, thereby improving the service life of the valve and the sealing effect.

[0019] like Figure 6 , Figure 7 and Fig.13As shown, in some embodiments, a plurality of sliding cavities 401 are provided in a circular array at the wall thickness of the valve body 1, a liquid inlet 402 communicating with the interior of the valve body 1 is provided on the sliding cavity 401, a filter screen 403 is installed on the liquid inlet 402, the water storage mechanism 4 includes a piston plate 404 slidably installed in the sliding cavity 401, an annular cavity 405 is constructed at the wall thickness of the valve body 1, a sliding ring 406 is slidably installed in the annular cavity 405, and a plurality of connecting convex plates 407 are constructed on one side of the sliding ring 406 close to the valve plate 3, and a plurality of The free ends of the connecting convex plates 407 pass through the sliding chamber 401 and are connected to the multiple piston plates 404. The sliding chamber 401 is provided with a water inlet hole 408 that is connected to the water storage chamber 5. A one-way valve 409 is installed in the water inlet hole 408. The valve body 1 is provided with a driving assembly 8 for driving the sliding ring 406 to move. The filter screen 403 can effectively prevent impurities in the liquid of the valve body 1 from entering the liquid inlet 402. The sliding ring 406 is moved by the driving assembly 8, and the sliding ring 406 drives the multiple connecting When the connecting convex plate 407 moves, the connecting convex plate 407 drives the piston plate 404 connected thereto to move, so that the piston plate 404 moves in the direction of the water inlet hole 408. During the movement of the piston plate 404, the connecting convex plate 407 blocks the liquid inlet 402 to prevent the liquid in the valve body 1 from further entering the liquid inlet 402. Therefore, when the piston plate 404 moves in the direction of the liquid inlet 402, it can prevent the liquid in the valve body 1 from entering the liquid inlet 402. At this time, the piston plate 404 located in the sliding cavity 408 is 1 will be squeezed into the water inlet hole 408 due to the movement of the piston plate 404, and finally the liquid in the sliding chamber 401 will pass through the water inlet hole 408 and enter the water storage chamber 5, and the design of the one-way valve 409 can effectively prevent the liquid entering the water storage chamber 5 from flowing back into the sliding chamber 401. At this time, the blocking member 603 is in a closed state, and the one-way valve 409 cooperates with the blocking member 603 to effectively temporarily store the water in the water storage chamber 5, so as to squeeze and release the water in the water storage chamber 5 through the pressure-applying mechanism 7 at a later time.

[0020] like Fig.12 and Fig.13As shown, in some embodiments, the pressure mechanism 7 includes an arc-shaped push plate 701 horizontally slidably installed in the water storage chamber 5, and a pressure spring 702 is installed between the side of the arc-shaped push plate 701 away from the water inlet hole 408 and the water storage chamber 5, and a locking assembly 703 is installed on the valve body 1. When the arc-shaped push plate 701 moves to the locking assembly 703, the locking assembly 703 limits the arc-shaped push plate 701. When the arc-shaped push plate 701 is limited by the locking assembly 703, the pressure spring 702 is in a compressed state. It should be noted that when the arc-shaped push plate 701 is in a normal state, the pressure spring 702 will make the arc-shaped push plate 701 contact the side of the water storage chamber 5 where the water inlet hole 408 is opened, so the liquid in the sliding chamber 401 at this time will not enter the water storage chamber 5, and when the piston plate 404 moves toward the water inlet hole 408, the liquid in the sliding chamber 401 will be squeezed into the water inlet hole 408. , and then the liquid will enter the sliding cavity 401 from the water inlet hole 408 to push the arc push plate 701 to move. As the arc push plate 701 moves, the arc push plate 701 will move onto the locking assembly 703, so that the arc push plate 701 is limited by the locking assembly 703 to complete water storage. When the liquid in the water storage cavity 5 needs to be sprayed out, it is only necessary to unlock the limit of the arc push plate 701 through the locking assembly 703. At this time, the pressure spring 702 will move due to its own elastic deformation, thereby causing the arc push plate 701 to move rapidly. When moving, the arc push plate 701 pushes the liquid in the water storage cavity 5 into the drainage cavity 601. The impact force provided by the arc push plate 701 causes the liquid in the water storage cavity 5 to quickly flow into the drainage cavity 601. At this time, the blocking member 603 is in an open state, so that water is sprayed out of the drainage groove 602 to achieve flushing of the inner wall of the valve body 1.

[0021] like Fig. 9 , Fig.12 and Fig.13As shown, in some embodiments, the locking assembly 703 includes a mounting cylinder 7031 mounted on the outside of the valve body 1, a wedge plate 7032 is slidably inserted in the mounting cylinder 7031, a return spring 7034 is installed between the mounting cylinder 7031 and the wedge plate 7032, the free end of the wedge plate 7032 is located in the water storage chamber 5, the inclined surface of the wedge plate 7032 is used to contact the arc-shaped push plate 701, and a toggle member 7033 is installed on the valve body 1, and the toggle member 7033 is used to toggle the wedge plate 7032 to move in a direction away from the valve body 1. That is to say, when the arc-shaped push plate 701 moves in a direction away from the water inlet hole 408, the arc-shaped push plate 701 will contact the inclined surface of the wedge plate 7032, so that the wedge plate 7032 moves in a direction away from the mounting cylinder 7031. When the arc-shaped push plate 701 passes through After the wedge plate 7032 is moved, the return spring piece 7034 will be reset due to its own elastic deformation, so that the wedge plate 7032 is once again located in the water storage chamber 5. At this time, the arc push plate 701 will abut against the side plane of the wedge plate 7032, thereby limiting the arc push plate 701. When it is necessary to drive the arc push plate 701 to move, it is only necessary to use the toggle member 7033 to move the wedge plate 7032 in the direction away from the valve plate 3, so that the side plane of the wedge plate 7032 no longer abuts against the arc push plate 701. At this time, the arc push plate 701 will return to its original position due to the elastic deformation characteristics of the pressure spring 702, thereby providing an impact force to the arc push plate 701. The design of the wedge plate 7032 ensures that the arc push plate 701 will be automatically limited after moving to the corresponding position, which is convenient to use.

[0022] like Fig. 9 and Fig.13 As shown, in some embodiments, the toggle member 7033 includes a driving ring 70331 slidably mounted on the valve body 1, and the end of the driving ring 70331 facing the mounting tube 7031 is configured with a wedge-shaped protrusion 70332, and the end of the wedge plate 7032 located in the mounting tube 7031 passes through the mounting tube 7031 and is configured with a driving protrusion 70333, and the driving protrusion plate 70333 is configured with an inclined surface for contacting the inclined surface of the wedge-shaped protrusion 70332. That is to say, when the driving ring 70331 moves in a direction close to the mounting tube 7031, the inclined surface on the wedge-shaped protrusion 70332 will contact the inclined surface of the driving protrusion plate 70333, thereby forcing the wedge plate 7032 to move in a direction away from the valve body 1. In this embodiment, an electric push rod or other structure that can drive the driving ring 70331 to move can be used.

[0023] like Fig. 9 and Fig.13As shown, in some embodiments, the driving assembly 8 includes a sliding frame plate 801 horizontally slidably mounted on the valve body 1, a connecting protrusion 802 is configured on the outer side of the sliding ring 406, the connecting protrusion 802 passes through the valve body 1 and is connected to the sliding frame plate 801, a mounting cavity 803 is configured inside the valve body 1, a sliding rod 804 slidably inserted in the mounting cavity 803 is horizontally configured on the connecting protrusion 802, a return spring 805 is installed between the sliding rod 804 and the mounting cavity 803, a forcing convex plate 808 is configured on one side of the sliding frame plate 801, a rotating rod 806 is vertically rotatably mounted on the valve body 1, a convex disk 809 is configured at the bottom of the rotating rod 806, and a forcing convex rod 807 is eccentrically configured at the bottom of the convex disk 809, which is used to contact the forcing convex plate 808, and a valve stem 2 is installed for driving the rotating rod 80 6 rotating transmission member 9, that is, the transmission member 9 drives the rotating rod 806 to rotate, the rotating rod 806 will drive the convex plate 809 to rotate when rotating, and the convex plate 809 will drive the forced convex rod 807 to rotate when rotating, and the forced convex rod 807 will contact the forced convex plate 808 when rotating, thereby driving the forced convex plate 808 to move, and the sliding frame plate 801 will also move at this time, thereby causing the sliding ring 406 to move. After the sliding ring 406 moves toward the direction of the valve plate 3, as the convex plate 809 rotates, the forced convex rod 807 on the convex plate 809 will gradually separate from the forced convex plate 808, and then the sliding frame plate 801 is reset through the reset spring 805. The transmission member 9 in this embodiment can be a motor, which is installed on the valve body 1 and one end of which is connected to the rotating rod 806.

[0024] like Figure 11-13 As shown, in some embodiments, the transmission member 9 includes a connecting disk 901 mounted on the valve stem 2, and a circular array is constructed at the bottom of the connecting disk 901 with two arc-shaped racks 902. A driven gear 903 for meshing with the arc-shaped rack 902 is mounted on the top of the rotating rod 806. In this embodiment, when the valve plate 3 is rotated ninety degrees from a closed state to an open state, one of the arc-shaped racks 902 will mesh with the driven gear 903 during this process, thereby driving the rotating rod 806 to rotate. The rotation of the rotating rod 806 will drive the convex disk 809 to rotate one circle, so that the arc-shaped push plate 701 moves back and forth for a stroke, thereby completing the liquid delivery to the water storage chamber 5.

[0025] like Figure 9-13As shown, in some embodiments, a forcing long plate 10 is constructed on the driving ring 70331, and one side of the forcing long plate 10 is an inclined surface, and the forcing long plate 10 is higher than the driven gear 903. The circular array at the bottom end of the connecting plate 901 is constructed with two forcing rods 11 for contacting the inclined surface of the forcing long plate 10. In this embodiment, the valve plate 3 rotates in one direction to realize the opening and closing of the valve. When the valve plate 3 rotates ninety degrees from the closed state to the open state, one of the arc-shaped racks 902 will rotate with the driven gear 903, and then the water storage chamber 5 is opened and closed by moving the arc-shaped push plate 701. When the valve plate 3 is rotated 90 degrees from the open state to the closed state, when the valve plate 3 is about to isolate the valve inner cavity, the forcing rod 11 will contact the forcing long plate 10, thereby forcing the driving ring 70331 to move in the direction of the wedge block, thereby realizing the movement of the wedge plate 7032 in the direction of the mounting cylinder 7031, releasing the limit on the arc push plate 701, and the arc push plate 701 moves rapidly through the pressure spring 702 to make the water column spray out of the drainage groove 602, and so on. Fig.13 As shown, automatic water storage and automatic water jetting can be achieved by rotating clockwise without the need for additional driving force, making it more convenient to use.

[0026] like Figure 9-13 As shown, in some embodiments, the sealing member 603 includes a connecting tube 6031 installed in a circular array in the drainage chamber 601, an arc-shaped sealing plate 6032 is slidably installed at one end of the connecting tube 6031, a locking spring 6033 is installed between the arc-shaped sealing plate 6032 and the connecting tube 6031, and the arc-shaped sealing plate 6032 is configured with a notch 6034 at one end away from the corresponding connecting tube 6031, and the notch 6034 is designed to increase the contact area with the liquid. When the water pressure in the drainage chamber 601 gradually increases, the arc-shaped sealing plate 6032 will move due to the increase in water pressure, thereby causing multiple drainage grooves 602 to spray out water columns, and there is no need to additionally control the movement of the arc-shaped sealing plate 6032.

[0027] like Figure 1 As shown, in some embodiments, a sealing cover 12 is installed on the outside of the valve body 1, and the motor is installed on the sealing cover 12. The design of the sealing cover 12 can effectively protect the structure exposed to the outside and effectively prevent the structure exposed to the outside from being damaged by the outside.

[0028] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A high protection performance butterfly valve, characterized in that: include: A valve body (1), a valve stem (2) being mounted on the valve body (1) for vertical rotation, the bottom end of the valve stem (2) being located inside the valve body (1) and being mounted with a valve plate (3), and a motor for driving the valve stem (2) to rotate being mounted on the valve body (1); A water storage mechanism (4) is mounted on the valve body (1); a water storage chamber (5) is formed in the wall thickness of the valve body (1); and part of the liquid in the valve body (1) is transported to the water storage chamber (5) through the water storage mechanism (4); A drainage mechanism (6), wherein a drainage cavity (601) is constructed at a thick portion of the valve body (1), a plurality of drainage grooves (602) are provided in a circular array on the inner circumference of the drainage cavity (601), when the valve plate (3) is in a closed state, the valve plate (3) blocks the drainage grooves (602), a blocking member (603) for blocking the drainage grooves (602) is installed in the drainage cavity (601), and the drainage cavity (601) is in communication with the water storage cavity (5); The pressure-applying mechanism (7) is mounted on the valve body (1). When the water storage chamber (5) is filled with liquid, the pressure-applying mechanism (7) is used to pressurize the liquid in the water storage chamber (5) and squeeze it into the drainage chamber (601).

2. A high protection performance butterfly valve according to claim 1, characterized in that: A plurality of sliding cavities (401) are provided in a circular array at the wall thickness of the valve body (1); a liquid inlet (402) communicating with the interior of the valve body (1) is provided on the sliding cavity (401); a filter screen (403) is installed on the liquid inlet (402); the water storage mechanism (4) comprises a piston plate (404) slidably installed in the sliding cavity (401); an annular cavity (405) is constructed at the wall thickness of the valve body (1); a sliding ring (406) is slidably installed in the annular cavity (405); A plurality of connecting convex plates (407) are constructed on one side of the sliding ring (406) close to the valve plate (3); the free ends of the plurality of connecting convex plates (407) respectively pass through the sliding cavity (401) and are connected to the plurality of piston plates (404); a water inlet hole (408) communicating with the water storage cavity (5) is provided on the sliding cavity (401); a one-way valve (409) is installed in the water inlet hole (408); and a driving component (8) for driving the sliding ring (406) to move is installed on the valve body (1).

3. A high protection performance butterfly valve according to claim 2, characterized in that: The pressure mechanism (7) comprises an arc-shaped push plate (701) horizontally slidably mounted in the water storage chamber (5); a pressure spring (702) is mounted between the side of the arc-shaped push plate (701) away from the water inlet hole (408) and the water storage chamber (5); a locking assembly (703) is mounted on the valve body (1); when the arc-shaped push plate (701) moves onto the locking assembly (703), the locking assembly (703) limits the arc-shaped push plate (701); when the arc-shaped push plate (701) is limited by the locking assembly (703), the pressure spring (702) is in a compressed state.

4. A high protection performance butterfly valve according to claim 3, characterized in that: The locking assembly (703) comprises a mounting tube (7031) mounted on the outside of the valve body (1), a wedge plate (7032) being slidably inserted in the mounting tube (7031), a return spring (7034) being mounted between the mounting tube (7031) and the wedge plate (7032), a free end of the wedge plate (7032) being located in the water storage chamber (5), an inclined surface of the wedge plate (7032) being used to contact the arc-shaped push plate (701), and a toggle member (7033) being mounted on the valve body (1), the toggle member (7033) being used to toggle the wedge plate (7032) to move in a direction away from the valve body (1).

5. A high protection performance butterfly valve according to claim 4, characterized in that: The toggle member (7033) comprises a drive ring (70331) slidably mounted on the valve body (1); one end of the drive ring (70331) facing the mounting tube (7031) is configured with a wedge-shaped protrusion (70332); one end of the wedge plate (7032) located in the mounting tube (7031) passes through the mounting tube (7031) and is configured with a driving protrusion (70333); the driving protrusion (70333) is configured with an inclined surface for contacting the inclined surface of the wedge-shaped protrusion (70332).

6. A high protection performance butterfly valve according to claim 1, characterized in that: The driving assembly (8) comprises a sliding frame plate (801) horizontally slidably mounted on the valve body (1); a connecting protrusion (802) is configured on the outer side of the sliding ring (406); the connecting protrusion (802) passes through the valve body (1) and is connected to the sliding frame plate (801); a mounting cavity (803) is configured inside the valve body (1); a sliding rod (804) is horizontally configured on the connecting protrusion (802) and is slidably inserted into the mounting cavity (803); the sliding rod (804) is connected to the mounting cavity (803), a return spring (805) is installed between the sliding frame plate (801), a forcing convex plate (808) is constructed on one side of the sliding frame plate (801), a rotating rod (806) is vertically rotatably installed on the valve body (1), a convex plate (809) is constructed at the bottom of the rotating rod (806), and a forcing convex rod (807) is eccentrically constructed at the bottom of the convex plate (809) for contacting the forcing convex plate (808), and a transmission member (9) for driving the rotating rod (806) to rotate is installed on the valve stem (2).

7. A high protection performance butterfly valve according to claim 6, characterized in that: The transmission member (9) comprises a connection plate (901) sleeved on the valve stem (2), the bottom of the connection plate (901) being configured with two arc-shaped racks (902) in a circular array, and the top of the rotating rod (806) being sleeved with a driven gear (903) for meshing with the arc-shaped racks (902).

8. A high protection performance butterfly valve according to claim 7, characterized in that: The driving ring (70331) is provided with a forcing long plate (10), one side of which is an inclined surface, so that the forcing long plate (10) is higher than the driven gear (903), and the circular array at the bottom end of the connecting plate (901) is provided with two forcing rods (11) for contacting the inclined surface of the forcing long plate (10).

9. A high protection performance butterfly valve according to claim 1, characterized in that: The blocking member (603) comprises connecting tubes (6031) installed in a circular array in the drainage cavity (601); an arc-shaped sealing plate (6032) is slidably installed at one end of the connecting tube (6031); a clamping spring (6033) is installed between the arc-shaped sealing plate (6032) and the connecting tube (6031); and a cutout (6034) is configured at one end of the arc-shaped sealing plate (6032) away from the corresponding connecting tube (6031).

10. A high protection performance butterfly valve according to claim 1, characterized in that: A sealing cover (12) is installed on the outside of the valve body (1), and the motor is installed on the sealing cover (12).

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