A low resistance and high pressure double eccentric butterfly valve

Abstract

The present invention relates to the field of valve technology, specifically a low-resistance, high-pressure double-eccentric butterfly valve, comprising a valve body, two flanges, a valve core, a battery, and a rotating shaft, wherein the two flanges are fixedly mounted at both ends of the valve body, a sealing ring is embedded on the outer wall of the middle position of the valve core, the valve core is eccentrically arranged with respect to the valve body, and the valve core is located at the end inside the valve body. The present invention can quickly open and close the valve body according to demand, can improve the efficiency of opening and closing the valve body, is conducive to the use of the valve body, can utilize the kinetic energy of the fluid to generate electricity, avoid external power supply, can be used in an environment where electricity is inconvenient, can improve the practicality of the butterfly valve, can make the lubricating oil flow continuously, can ensure the lubrication effect, and the metal spoiler has good thermal conductivity. When the lubricating oil is sucked into the spoiler, the fluid flow can take away the heat of the lubricating oil due to the working process, can avoid the lubricating oil from failing due to high temperature, and can ensure the lubrication effect.

Description

Technical Field

[0001] The present invention relates to the technical field of valves, in particular to a low-resistance and high-pressure double-eccentric butterfly valve. Background Art

[0002] Double eccentric butterfly valve, also known as high-performance butterfly valve, is a regulating and intercepting device on water pipelines. It is mainly used in drainage systems such as water plants, power plants, steel mills, chemical plants, water source projects, and environmental facilities construction. It is especially suitable for use as a regulating and intercepting device on water pipelines. Compared with the centerline butterfly valve, the double eccentric butterfly valve is more resistant to high pressure, has a longer lifespan, and is more stable.

[0003] The double eccentric butterfly valve is a further improvement on the single eccentric butterfly valve. Its structural feature is that the valve stem axis deviates from both the center of the butterfly disc and the center of the body. The double eccentric effect enables the butterfly disc to quickly separate from the valve seat after the valve is opened, greatly eliminating unnecessary excessive squeezing and scraping between the butterfly disc and the valve seat, reducing the opening resistance, reducing wear, and increasing the life of the valve seat. The significant reduction in scraping also allows the double eccentric butterfly valve to use a metal valve seat, improving the application of the butterfly valve in high-temperature fields.

[0004] A water plant refers to a plant with certain production equipment that can complete the entire production process of tap water. The water quality meets the general production water and domestic water requirements, and can be used as a production unit for the company's internal first-level accounting. In the process of producing tap water, water needs to be frequently regulated and intercepted, so the valves need to be opened and closed frequently. In order to facilitate the opening and closing of the valves, the valves are controlled by electric means in conjunction with gear transmission. An external power supply or frequent battery replacement is required, which increases the limitations of use. In addition, since the valves are frequently opened and closed, the number of gear rotations will increase, the temperature of the gears will rise, and the lubricating oil that provides lubrication will be damaged due to high temperature, affecting the lubrication effect and further affecting the transmission effect.

[0005] Therefore, a low-resistance and high-pressure double-eccentric butterfly valve is proposed. Summary of the Invention

[0006] The purpose of the present invention is to provide a low-resistance and high-pressure double-eccentric butterfly valve, which improves the advertising effect by slowly rotating the two screens on the mounting frame to evenly display advertisements in all directions, and can make the push plate slide back and forth in the slide groove to discharge the hot air in the mounting frame, ensure the heat dissipation effect, and put the electrical components in the mounting frame in a suitable environment. When the screen and the mounting frame are in contact, an air wall is formed on the outside of the screen to drive away flying insects attracted by the screen light at night, thereby preventing the flying insects from affecting the display effect of the screen.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] The cam is connected with the valve core, and the cam is connected with the valve body to the cam face, and the cam face has the cam face and the cam face has an eccentric rotation.

[0009] Preferably, the drive assembly includes a rotating disk rotatably mounted in a drive box, the rotating disk being provided with worm gear teeth, and the drive box also rotatably mounting a worm that meshes with the worm gear teeth, the rotating disk being designed to be circular, the central axis of the rotating disk being fixedly connected to the central axis of the rotating shaft, and the worm gear teeth occupying one quarter of the rotating disk.

[0010] Preferably, a motor is fixedly mounted on the side wall of the drive box, the output end of the motor is fixedly connected to the central axis of the worm, and the motor is electrically connected to the battery at the bottom end of the valve body.

[0011] Through the above scheme, when the motor is working, the motor can drive the worm to rotate counterclockwise in the drive box. At this time, the worm can move the worm gear teeth on the rotating disk, and can drive the rotating shaft to rotate in the valve body. At this time, the valve core can be opened. Similarly, when the motor drives the worm to rotate clockwise, the rotating shaft can be closed. The valve body can be opened and closed quickly according to needs, which can improve the efficiency of opening and closing the valve body, which is beneficial to the use of the valve body. The battery can provide sufficient energy for the valve body to ensure the normal use of the valve body.

[0012] Preferably, the two ends of the reinforcing rib are designed to be arc-shaped, the energy storage assembly includes a small generator motor fixedly installed in the through hole, a turbine blade is fixedly connected to the central axis of the small generator motor, and a pressurizing part is provided near the turbine blade in the through hole. The aperture of the pressurizing part gradually becomes smaller, and the aperture of the pressurizing part near the turbine blade is the smallest.

[0013] Through the above scheme, the reinforcing ribs can occupy a certain space inside the valve body, can increase the pressure inside the butterfly valve, and the arc-shaped reinforcing ribs can reduce the resistance of the fluid passing through the valve body. When the fluid passes through the valve body, the turbine blades can be driven by the fluid. At this time, the turbine blades can drive the small generator motor to work, can use the kinetic energy of the fluid to generate electricity, can avoid external power supply, can be used in an environment where electricity is inconvenient, can improve the practicality of the butterfly valve, and because the inner diameter of the pressurized part gradually decreases, the pressure of the fluid entering the pressurized part becomes greater, so that the speed of rotation of the turbine blades will become faster, which can ensure the power generation efficiency.

[0014] Preferably, the three small generator motors are electrically connected to the battery respectively.

[0015] Through the above solution, the battery can be charged by multiple small generator motors, which can provide sufficient energy for the motor and ensure that the valve core can open and close normally.

[0016] Preferably, an oil storage tank is provided in the maintenance box, the oil storage tank is filled with lubricating oil, the bottom wall of the oil storage tank is inclined downward, a vent is provided at the top of the maintenance box, the bottom end of the oil storage tank is connected to an oil guide head, and the bottom end of the oil guide head extends to the meshing point of the worm gear teeth and the worm.

[0017] Through the above scheme, the lubricating oil in the oil storage tank can flow along the oil guide head to the meshing point of the worm gear and the worm, lubricate the worm gear and the worm, ensure the transmission effect of the worm gear and the worm, reduce the wear of the worm gear and the worm, ensure the rotation of the valve core, and the vent hole can ensure that the lubricating oil in the closed oil storage tank can flow smoothly.

[0018] Preferably, the commutation assembly includes a piston slidably mounted in the spoiler cylinder, and the piston fits against the inner wall of the spoiler cylinder, a movable ring is fixedly mounted on the inner side of the piston, a reciprocating screw is fixedly mounted on the central axis of the turbine blade, the movable ring is sleeved on the outer side of the reciprocating screw, and a threaded hole adapted to the reciprocating screw is opened at the center of the movable ring.

[0019] Through the above scheme, in the process of fluid driving the turbine blades to rotate, the reciprocating screw can rotate synchronously. At this time, the reciprocating screw can drive the movable ring to move back and forth along the reciprocating screw. In the process of the reciprocating movement of the movable ring, the piston can move back and forth synchronously. At this time, the piston can generate negative pressure in the spoiler, so that the lubricating oil in the oil storage tank fills the drive box along the oil guide head and enters the spoiler from the top of the oil suction pipe. Then, the lubricating oil in the spoiler is re-injected into the oil storage tank along the oil filling pipe, so that the lubricating oil can flow continuously, provide lubrication to the worm gear and worm, and dissipate heat to the lubricating oil, thereby ensuring the lubrication effect.

[0020] Preferably, an oil suction pipe and an oil filling pipe are connected to the side wall of the top of the spoiler, and the oil suction pipe and the oil filling pipe are arranged through the connecting frame. The top of the oil filling pipe passes through the center of the rotating shaft and is fixedly connected to the oil return pipe, and the top of the oil return pipe extends into the maintenance box, and the other end of the oil suction pipe passes through the rotating shaft and extends to the bottom end of the drive box.

[0021] Through the above solution, the oil suction pipe and the oil filling pipe arranged inside the connecting frame save space, avoid the obstruction of the oil circuit design to the fluid flow, and are conducive to the flow of lubricating oil.

[0022] Preferably, the oil filling pipe and the oil suction pipe are both provided with corresponding one-way valves.

[0023] Through the above solution, the one-way valve can ensure that the lubricating oil enters the spoiler cylinder in one direction along the oil suction pipe and flows back to the oil storage tank in one direction along the oil filling pipe, thereby ensuring the flow of the lubricating oil.

[0024] Preferably, the end of the spoiler is configured to be conical, a connecting frame is fixedly mounted on the end of the spoiler, and the spoiler is fixedly mounted in the through hole via the connecting frame, the spoiler is made of metal, and the thickness of the spoiler is 0.2 cm.

[0025] Through the above solution, the spoiler with a tapered end can reduce the resistance of the fluid when passing through the through hole, and the spoiler made of metal has good thermal conductivity. Therefore, when the lubricating oil is sucked into the spoiler, the fluid flow can take away the heat of the lubricating oil during the working process, which can prevent the lubricating oil from failing due to high temperature and ensure the lubrication effect. The small thickness is conducive to the heat dissipation of the lubricating oil.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] 1. By setting up a drive assembly, the motor can drive the worm to rotate counterclockwise in the drive box. At this time, the worm can move the worm gear teeth on the rotating disk, and can drive the rotating shaft to rotate in the valve body. At this time, the valve core can be opened. Similarly, when the motor drives the worm to rotate clockwise, the rotating shaft can be closed. The valve body can be opened and closed quickly according to demand, which can improve the efficiency of opening and closing the valve body and is beneficial to the use of the valve body. The battery can provide sufficient energy for the valve body to ensure the normal use of the valve body.

[0028] 2. By setting up an energy storage component, when the fluid passes through the valve body, the turbine blades can be driven by the fluid. At this time, the turbine blades can drive the small generator motor to work, and can use the kinetic energy of the fluid to generate electricity, which can avoid external power supply and can be used in environments where electricity is inconvenient. The practicality of the butterfly valve can be improved. Since the inner diameter of the pressurized part gradually decreases, the pressure of the fluid entering the pressurized part becomes greater, so that the speed of rotation of the turbine blades will become faster, which can ensure the power generation efficiency. The battery can be charged through multiple small generator motors, which can provide sufficient energy for the motor and ensure that the valve core can be opened and closed normally.

[0029] 3. By setting up a commutation component, in the process of the fluid driving the turbine blades to rotate, the reciprocating screw can rotate synchronously and the piston can reciprocate synchronously. At this time, the piston can generate negative pressure in the spoiler, so that the lubricating oil in the oil storage tank flows along the oil guide head to fill the drive box and enter the spoiler from the top of the oil suction pipe. Then the lubricating oil in the spoiler is re-injected into the oil storage tank along the oil filling pipe, so that the lubricating oil can flow continuously and the lubrication effect can be guaranteed. The spoiler with a tapered end can reduce the resistance of the fluid when passing through the through hole, and the spoiler made of metal has good thermal conductivity. When the lubricating oil is sucked into the spoiler, the fluid flow can take away the heat of the lubricating oil due to the working process, which can prevent the lubricating oil from failing due to high temperature and ensure the lubrication effect. The small thickness is conducive to the heat dissipation of the lubricating oil. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the overall structure of the outer side of the present invention;

[0031] Figure 2 It is a schematic diagram of the overall structure of the inner side of the present invention;

[0032] Figure 3 for Figure 1 Schematic diagram of the cross-sectional structure of AA;

[0033] Figure 4 for Figure 1 Schematic diagram of the cross-sectional structure of the middle BB;

[0034] Figure 5 This is a schematic diagram of a partial cross-sectional structure of a valve body in an embodiment of the present invention;

[0035] Figure 6 This is a schematic diagram of the cross-sectional structure of the top end of the drive box in an embodiment of the present invention;

[0036] Figure 7 This is a schematic diagram of the front cross-sectional structure of the drive box and the maintenance box in an embodiment of the present invention;

[0037] Figure 8 Schematic diagram of the structure of the reinforcing rib in an embodiment of the present invention;

[0038] Figure 9 Schematic diagram of the cross-sectional structure of the reinforcing rib in an embodiment of the present invention.

[0039] In the figure: 1. Valve body; 101. Flange; 102. Valve core; 1021. Reinforcement rib; 1022. Through hole; 1023. Small generator motor; 1024. Turbine blade; 1025. Pressurizing part; 1026. Sealing ring; 103. Battery; 104. Rotating shaft; 2. Drive box; 201. Motor; 202. Rotating disk; 203. Worm; 204. Worm gear; 3. Maintenance box; 301. Oil storage tank; 302. Vent; 303. Oil guide head; 304. Oil return pipe; 4. Turbine; 401. Reciprocating screw; 402. Movable ring; 403. Piston; 404. One-way valve; 405. Connecting frame; 4051. Oil filling pipe; 4052. Oil suction pipe. DETAILED DESCRIPTION

[0040] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0041] See also Figures 1 to 9 The present invention provides a low-resistance and high-pressure double-eccentric butterfly valve, and the technical solution is as follows:

[0042] A low-resistance, high-pressure double-eccentric butterfly valve comprises a valve body 1, two flanges 101, a valve core 102, a battery 103 and a rotating shaft 104. The two flanges 101 are fixedly mounted at both ends of the valve body 1, and a sealing ring 1026 is embedded on the outer wall of the middle position of the valve core 102. The valve core 102 is eccentrically arranged with respect to the valve body 1, and the valve core 102 is located at the end inside the valve body 1. The rotating shaft 104 is fixedly connected to the rear end of the valve core 102. The rotating shaft 104 is eccentrically rotatably mounted in the valve body 1. A drive box 2 is fixedly mounted on the top of the valve body 1, a maintenance box 3 is fixedly mounted on the top of the drive box 2, and a drive valve core 102 is arranged in the drive box 2. The driving component rotates within the range of 0° to 90°, and a reinforcing rib 1021 is fixedly installed on the side of the valve core 102 close to the rotating shaft 104. A plurality of through holes 1022 are evenly opened on the reinforcing rib 1021. A spoiler cylinder 4 is fixedly installed on the top through hole 1022. A commutation component that provides maintenance effect for the driving component is arranged in the spoiler cylinder 4, and an energy storage component that provides energy for the driving component is arranged in the through hole 1022, and the energy storage component drives the commutation component to operate.

[0043] The drive assembly includes a rotating disk 202 rotatably mounted in the drive box 2, on which worm gear teeth 204 are provided. A worm 203 rotatably mounted on the drive box 2 and meshing with the worm gear teeth 204 is also rotatably mounted. The rotating disk 202 is designed to be circular, and the central axis of the rotating disk 202 is fixedly connected to the central axis of the rotating shaft 104, and the worm gear teeth 204 occupy one quarter of the rotating disk 202.

[0044] A motor 201 is fixedly mounted on the side wall of the drive box 2 , the output end of the motor 201 is fixedly connected to the central axis of the worm 203 , and the motor 201 is electrically connected to the battery 103 at the bottom end of the valve body 1 .

[0045] In this embodiment, when the motor 201 is working, the motor 201 can drive the worm 203 to rotate counterclockwise in the drive box 2. At this time, the worm 203 can move the worm gear teeth 204 on the rotating disk 202, and can drive the rotating shaft 104 to rotate in the valve body 1. At this time, the valve core 102 can be opened. Similarly, when the motor 201 drives the worm 203 to rotate clockwise, the rotating shaft 104 can be closed. The valve body 1 can be opened and closed quickly according to demand, which can improve the opening and closing efficiency of the valve body 1, which is beneficial to the use of the valve body 1. The battery 103 can provide sufficient energy for the valve body 1, which can ensure the normal use of the valve body 1.

[0046] As an embodiment of the present invention, refer to Figure 2-Figure 4 The two ends of the reinforcing rib 1021 are designed to be arc-shaped. The energy storage component includes a small generator motor 1023 fixedly installed in the through hole 1022. The turbine blade 1024 is fixedly connected to the central axis of the small generator motor 1023. A pressurizing part 1025 is provided near the turbine blade 1024 in the through hole 1022. The aperture of the pressurizing part 1025 gradually becomes smaller, and the aperture of the pressurizing part 1025 near the turbine blade 1024 is the smallest.

[0047] In this embodiment, the reinforcing rib 1021 can occupy a certain space inside the valve body 1, can increase the pressure inside the butterfly valve, and the arc-shaped reinforcing rib 1021 can reduce the resistance of the fluid passing through the valve body 1. When the fluid passes through the valve body 1, the turbine blade 1024 can be driven by the fluid. At this time, the turbine blade 1024 can drive the small generator motor 1023 to work, can use the kinetic energy of the fluid to generate electricity, can avoid external power supply, can be used in an environment where electricity is inconvenient, can improve the practicality of the butterfly valve, and because the inner diameter of the pressurizing part 1025 gradually decreases, the pressure of the fluid entering the pressurizing part 1025 becomes greater, so that the speed of rotation of the turbine blade 1024 will become faster, which can ensure the power generation efficiency.

[0048] As an embodiment of the present invention, refer to Figure 4 The three small generator motors 1023 are electrically connected to the battery 103 respectively.

[0049] In this embodiment, the battery 103 can be charged by a plurality of small generator motors 1023 , which can provide sufficient energy for the motor 201 and ensure that the valve core 102 can be opened and closed normally.

[0050] As an embodiment of the present invention, refer to Figure 7 An oil storage tank 301 is provided in the maintenance box 3, and the oil storage tank 301 is filled with lubricating oil. The bottom wall of the oil storage tank 301 is tilted downward, and a vent hole 302 is provided at the top of the maintenance box 3. The bottom end of the oil storage tank 301 is connected to an oil guide head 303, and the bottom end of the oil guide head 303 extends to the meshing position of the worm gear teeth 204 and the worm 203.

[0051] In this embodiment, the lubricating oil in the oil storage tank 301 can flow along the oil guide head 303 to the meshing point of the worm gear teeth 204 and the worm 203, lubricate the worm gear teeth 204 and the worm 203, ensure the transmission effect of the worm gear teeth 204 and the worm 203, reduce the wear of the worm gear teeth 204 and the worm 203, ensure the rotation of the valve core 102, and the air vent 302 can ensure that the lubricating oil in the closed oil storage tank 301 can flow smoothly.

[0052] As an embodiment of the present invention, refer to Figure 9 The commutation assembly includes a piston 403 slidably mounted in the spoiler cylinder 4, and the piston 403 fits against the inner wall of the spoiler cylinder 4. A movable ring 402 is fixedly mounted on the inner side of the piston 403. A reciprocating screw 401 is fixedly mounted on the central axis of the turbine blade 1024. The movable ring 402 is sleeved on the outer side of the reciprocating screw 401, and a threaded hole compatible with the reciprocating screw 401 is opened at the center of the movable ring 402.

[0053] In this embodiment, when the fluid drives the turbine blades 1024 to rotate, the reciprocating screw 401 can rotate synchronously. At this time, the reciprocating screw 401 can drive the movable ring 402 to move back and forth along the reciprocating screw 401. During the reciprocating movement of the movable ring 402, the piston 403 can move back and forth synchronously. At this time, the piston 403 can generate negative pressure in the spoiler cylinder 4, so that the lubricating oil in the oil storage tank 301 fills the drive box 2 along the oil guide head 303 and enters the spoiler cylinder 4 from the top of the oil suction pipe 4052. Then, the lubricating oil in the spoiler cylinder 4 is re-injected into the oil storage tank 301 along the oil filling pipe 4051, so that the lubricating oil can flow continuously, and can provide lubrication to the worm gear teeth 204 and the worm 203 while dissipating the lubricating oil, thereby ensuring the lubrication effect.

[0054] As an embodiment of the present invention, refer to Figure 9An oil suction pipe 4052 and an oil filling pipe 4051 are connected to the side wall of the top of the spoiler 4. The oil suction pipe 4052 and the oil filling pipe 4051 are arranged through the connecting frame 405. The top of the oil filling pipe 4051 passes through the center of the rotating shaft 104 and is fixedly connected to the oil return pipe 304. The top of the oil return pipe 304 extends into the maintenance box 3, and the other end of the oil suction pipe 4052 passes through the rotating shaft 104 and extends to the bottom end of the drive box 2.

[0055] In this embodiment, the oil suction pipe 4052 and the oil filling pipe 4051 arranged inside the connecting frame 405 save space, avoid the obstruction of the oil circuit design to the fluid flow, and facilitate the flow of lubricating oil.

[0056] As an embodiment of the present invention, refer to Figure 9 Corresponding one-way valves 404 are provided on the oil filling pipe 4051 and the oil suction pipe 4052.

[0057] In this embodiment, the one-way valve 404 can ensure that the lubricating oil enters the spoiler 4 along the oil suction pipe 4052 in one direction and flows back to the oil storage tank 301 along the oil filling pipe 4051 in one direction, thereby ensuring the flow of the lubricating oil.

[0058] As an embodiment of the present invention, refer to Figure 9 The end of the spoiler tube 4 is set to a cone, the end of the spoiler tube 4 is fixedly installed with a connecting frame 405, and the spoiler tube 4 is fixedly installed in the through hole 1022 through the connecting frame 405. The spoiler tube 4 is made of metal, and the thickness of the spoiler tube 4 is 0.2 cm.

[0059] In this embodiment, the spoiler 4 with a tapered end can reduce the resistance of the fluid when passing through the through hole 1022, and the spoiler 4 made of metal has good thermal conductivity. Therefore, when the lubricating oil is sucked into the spoiler 4, the fluid flow can take away the heat of the lubricating oil during the working process, which can prevent the lubricating oil from failing due to high temperature and ensure the lubrication effect. In addition, the small thickness is conducive to the heat dissipation of the lubricating oil.

[0060] Working principle: First, the valve body 1 is installed through the flange 101. When the motor 201 is working, the motor 201 can drive the worm 203 to rotate counterclockwise in the drive box 2. At this time, the worm 203 can dial the worm gear 204 on the rotating disk 202, which can drive the rotating shaft 104 to rotate in the valve body 1. At this time, the valve core 102 can be opened. Similarly, when the motor 201 drives the worm 203 to rotate clockwise, the rotating shaft 104 can be closed, and the sealing ring 1026 can ensure the sealing effect of the valve core 102 when it is closed. The valve body 1 can be opened and closed quickly according to needs, which can improve the opening and closing efficiency of the valve body 1 and is beneficial to the use of the valve body 1. The battery 103 can provide sufficient energy for the valve body 1 to ensure the normal use of the valve body 1.

[0061] The reinforcing rib 1021 can occupy a certain space inside the valve body 1, which can increase the pressure in the butterfly valve, and the arc-shaped reinforcing rib 1021 can reduce the resistance of the fluid passing through the valve body 1. When the fluid passes through the valve body 1, the turbine blade 1024 can be driven by the fluid. At this time, the turbine blade 1024 can drive the small generator motor 1023 to work, and can use the kinetic energy of the fluid to generate electricity, which can avoid external power supply and can be used in environments where electricity is inconvenient, thereby improving the practicality of the butterfly valve. Moreover, since the inner diameter of the pressurizing part 1025 gradually decreases, the pressure of the fluid entering the pressurizing part 1025 increases, so that the speed of rotation of the turbine blade 1024 will become faster, which can ensure the power generation efficiency. Moreover, the battery 103 can be charged by multiple small generator motors 1023, which can provide sufficient energy for the motor 201 and ensure that the valve core 102 can be opened and closed normally.

[0062] During use, the lubricating oil in the oil storage tank 301 can flow along the oil guide head 303 to the meshing portion between the worm gear 204 and the worm 203, thereby lubricating the worm gear 204 and the worm 203, ensuring the transmission effect of the worm gear 204 and the worm 203, reducing the wear of the worm gear 204 and the worm 203, and ensuring the rotation of the valve core 102. In addition, the vent hole 302 can ensure that the lubricating oil in the sealed oil storage tank 301 can flow smoothly.

[0063] When the fluid drives the turbine blades 1024 to rotate, the reciprocating screw 401 can rotate synchronously. At this time, the reciprocating screw 401 can drive the movable ring 402 to move back and forth along the reciprocating screw 401. During the reciprocating movement of the movable ring 402, the piston 403 can move back and forth synchronously. At this time, the piston 403 can generate negative pressure in the spoiler 4, so that the lubricating oil in the oil storage tank 301 is filled with the drive box 2 along the oil guide head 303 and enters the spoiler 4 from the top of the oil suction pipe 4052. Then, the lubricating oil in the spoiler 4 is re-injected into the oil storage tank 301 along the oil filling pipe 4051, which can make the lubricating oil flow continuously, and can provide lubrication to the worm gear 204 and the worm 203 while dissipating the lubricating oil, so as to ensure the lubrication effect. The oil suction pipe 4052 and the oil filling pipe 4051 arranged inside the connecting frame 405 save space, avoid the oil circuit design from hindering the fluid flow, and are conducive to the flow of lubricating oil;

[0064] The one-way valve 404 can ensure that the lubricating oil enters the spoiler 4 in one direction along the oil suction pipe 4052 and flows back to the oil storage tank 301 in one direction along the oil filling pipe 4051, thereby ensuring the flow of the lubricating oil. The spoiler 4 with a tapered end can reduce the resistance of the fluid when passing through the through hole 1022. The spoiler 4 made of metal has good thermal conductivity. Therefore, when the lubricating oil is sucked into the spoiler 4, the fluid flow can take away the heat of the lubricating oil during the working process, thereby preventing the lubricating oil from failing due to high temperature and ensuring the lubrication effect. The small thickness is conducive to the heat dissipation of the lubricating oil.

[0065] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A low-resistance, high-pressure double-eccentric butterfly valve, comprising a valve body (1), two flanges (101), a valve core (102), a battery (103), and a rotating shaft (104), wherein the two flanges (101) are fixedly mounted on both ends of the valve body (1), and a sealing ring (1026) is embedded on the outer wall of the middle position of the valve core (102), characterized in that: The valve core (102) is eccentrically arranged with respect to the valve body (1), and the valve core (102) is located at the end portion inside the valve body (1), the rotating shaft (104) is fixedly connected to the rear end of the valve core (102), and the rotating shaft (104) is eccentrically rotatably installed inside the valve body (1), a driving box (2) is fixedly installed at the top end of the valve body (1), a maintenance box (3) is fixedly installed at the top end of the driving box (2), and a driving valve core (102) is provided in the driving box (2) within the range of 0°-90°. A rotating drive assembly, wherein a reinforcing rib (1021) is fixedly installed on one side of the valve core (102) close to the rotating shaft (104), a plurality of through holes (1022) are evenly opened on the reinforcing rib (1021), a spoiler cylinder (4) is fixedly installed on the top through hole (1022), a spoiler cylinder (4) is provided in the spoiler cylinder (4) for providing a maintenance effect for the drive assembly, an energy storage assembly is provided in the through hole (1022) for providing energy for the drive assembly, and the energy storage assembly drives the spoiler assembly to operate; The drive assembly comprises a rotating disk (202) rotatably mounted in a drive box (2), a worm gear (204) being provided on the rotating disk (202), and a worm (203) meshing with the worm gear (204) being rotatably mounted on the drive box (2), the rotating disk (202) being designed as a circle, the central axis of the rotating disk (202) being fixedly connected to the central axis of the rotating shaft (104), and the worm gear (204) occupying one quarter of the rotating disk (202); A motor (201) is fixedly mounted on the side wall of the drive box (2), the output end of the motor (201) is fixedly connected to the central axis of the worm (203), and the motor (201) is electrically connected to the battery (103) at the bottom end of the valve body (1); The two ends of the reinforcing rib (1021) are designed to be arc-shaped. The energy storage assembly includes a small generator motor (1023) fixedly installed in the through hole (1022). The central axis of the small generator motor (1023) is fixedly connected to the turbine blade (1024). A pressurizing portion (1025) is provided near the turbine blade (1024) of the through hole (1022). The aperture of the pressurizing portion (1025) gradually decreases, and the aperture of the pressurizing portion (1025) near the turbine blade (1024) is the smallest. The spoiler assembly comprises a piston (403) slidably mounted in the spoiler tube (4), and the piston (403) is in contact with the inner wall of the spoiler tube (4); a movable ring (402) is fixedly mounted on the inner side of the piston (403); a reciprocating screw (401) is fixedly mounted on the central axis of the turbine blade (1024); the movable ring (402) is sleeved on the outer side of the reciprocating screw (401), and a threaded hole adapted to the reciprocating screw (401) is provided at the center of the movable ring (402); The end of the spoiler tube (4) is configured to be tapered, a connecting frame (405) is fixedly mounted on the end of the spoiler tube (4), and the spoiler tube (4) is fixedly mounted in the through hole (1022) via the connecting frame (405), the spoiler tube (4) is made of metal, and the thickness of the spoiler tube (4) is 0.2 cm.

2. A low resistance and high pressure double eccentric butterfly valve according to claim 1, characterized in that: The three small generator motors (1023) are electrically connected to the battery (103) respectively.

3. The low resistance and high pressure double eccentric butterfly valve according to claim 1, characterized in that: An oil storage tank (301) is provided in the maintenance box (3), and the oil storage tank (301) is filled with lubricating oil. The bottom wall of the oil storage tank (301) is tilted downward, and a vent hole (302) is provided at the top of the maintenance box (3). The bottom end of the oil storage tank (301) is connected to an oil guide head (303), and the bottom end of the oil guide head (303) extends to the meshing position of the worm gear teeth (204) and the worm (203).

4. The low resistance and high pressure double eccentric butterfly valve according to claim 1, characterized in that: An oil suction pipe (4052) and an oil injection pipe (4051) are connected to the side wall of the top end of the spoiler cylinder (4), and the oil suction pipe (4052) and the oil injection pipe (4051) are arranged through the connecting frame (405). The top end of the oil injection pipe (4051) passes through the center of the rotating shaft (104) and is fixedly connected to the oil return pipe (304), and the top end of the oil return pipe (304) extends into the maintenance box (3). The other end of the oil suction pipe (4052) passes through the rotating shaft (104) and extends to the bottom end of the drive box (2).

5. The low resistance and high pressure double eccentric butterfly valve according to claim 4, characterized in that: The oil filling pipe (4051) and the oil suction pipe (4052) are both provided with corresponding one-way valves (404).

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