Low-resistance high-pressure double-eccentric butterfly valve

Abstract

The invention relates to the technical field of valves, in particular to a low-resistance high-pressure double-eccentric butterfly valve which comprises a valve body, two flange plates, a valve element, a storage battery and a rotating shaft, the two flange plates are fixedly installed at the two ends of the valve body respectively, a sealing ring is embedded in the outer side wall of the middle position of the valve element, and the valve element is eccentrically arranged relative to the valve body; and the valve core is positioned at the end part in the valve body. The valve body can be quickly opened and closed according to requirements, the opening and closing efficiency of the valve body can be improved, use of the valve body is facilitated, kinetic energy of fluid can be utilized for power generation, an external power source is avoided, the butterfly valve can be used in the environment where electrification is inconvenient, the practicability of the butterfly valve can be improved, lubricating oil can continuously flow, and the service life of the butterfly valve is prolonged. And the turbulent flow cylinder made of metal is good in heat conduction performance, when lubricating oil is sucked into the turbulent flow cylinder, fluid flowing can take away heat of the lubricating oil in the working process, the situation that the lubricating oil loses efficacy due to high temperature can be avoided, and the lubricating effect can be guaranteed.

Description

Technical Field

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

[0002] The double-eccentric butterfly valve, also known as a high-performance butterfly valve, is a regulating and intercepting device on water pipelines, mainly applicable to the drainage in systems such as water plants, power plants, steel plant smelting, chemical industry, water source projects, environmental facility construction, etc. Especially when used 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 service life, and better stability. The double-eccentric butterfly valve is further improved on the basis of the single-eccentric butterfly valve; its structural feature is that the axis of the valve stem deviates from both the center of the butterfly plate and the center of the body. The effect of double eccentricity enables the butterfly plate to quickly disengage from the valve seat after the valve is opened, greatly eliminating the unnecessary excessive extrusion and scraping between the butterfly plate and the valve seat, reducing the opening resistance distance, decreasing wear, increasing the service life of the valve seat. The significant reduction of scraping also enables the double-eccentric butterfly valve to adopt a metal valve seat, improving the application of the butterfly valve in the high-temperature field. A water treatment plant refers to a production unit with certain production equipment that can complete the entire production process of tap water, whose water quality meets the requirements of general production water and domestic water, and can be used as an internal first-level accounting production unit of the company. During the production of tap water, it is necessary to frequently adjust and intercept water, so the valve needs to be frequently opened and closed. To facilitate the opening and closing of the valve, it is therefore controlled by an electric method in cooperation with gear transmission, which requires an external power supply or frequent replacement of the battery, increasing the limitations of use. Moreover, since the valve is frequently opened and closed, the number of rotations of the gear will increase, the temperature of the gear will rise, and the lubricating oil providing lubrication will be damaged due to high temperature, affecting the lubrication effect and further affecting the transmission effect.

[0003] Therefore, a low-resistance high-pressure double-eccentric butterfly valve is proposed. Summary of the Invention

[0004] The purpose of the present invention is to provide a low-resistance high-pressure double-eccentric butterfly valve, which can improve the advertising effect by slowly rotating two screens on the mounting frame to evenly and comprehensively display advertisements, and can enable the push plate to reciprocate in the chute to discharge the hot air in the mounting frame, ensuring the heat dissipation effect, enabling the electrical components in the mounting frame to be in a suitable environment, and forming an air wall outside the screen when the screen fits the mounting frame to drive away the flying insects attracted by the screen light at night, avoiding the influence of flying insects on the display effect of the screen.

[0005] To achieve the above object, the present invention provides the following technical solutions: A low-resistance, high-pressure double-eccentric butterfly valve comprises a valve body, two flanges, a valve core, a battery and a rotating shaft, the two flanges are fixedly mounted at two ends of the valve body respectively, a sealing ring is embedded in the outer side wall at 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 rotating shaft is fixedly connected to the rear end of the valve core, the rotating shaft is eccentrically rotatably mounted in the valve body, a driving box is fixedly mounted on the top of the valve body, a maintenance box is fixedly mounted on the top of the driving box, a driving assembly for driving the valve core to rotate within a range of 0° to 90° is arranged in the driving box, a reinforcing rib is fixedly mounted on one side of the valve core close to the rotating shaft, a plurality of through holes are evenly opened on the reinforcing rib, a spoiler cylinder is fixedly mounted on the top through hole, a commutation assembly for providing maintenance effect for the driving assembly is arranged in the spoiler cylinder, an energy storage assembly for providing energy for the driving assembly is arranged in the through hole, and the energy storage assembly drives the commutation assembly to operate.

[0006] 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 is designed to be circular, and the central axis of the rotating disk is fixedly connected to the central axis of the rotating shaft, and the worm gear teeth occupy one quarter of the rotating disk.

[0007] Preferably, a motor is fixedly mounted on the side wall of the drive box, an output end of the motor is fixedly connected to the central axis of the worm, and the motor is electrically connected to a battery at the bottom end of the valve body.

[0008] 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.

[0009] Preferably, both 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 decreases, and the aperture of the pressurizing part near the turbine blade is the smallest.

[0010] 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 it is inconvenient to power on, 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.

[0011] Preferably, the three small generator motors are electrically connected to the battery respectively.

[0012] 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 be opened and closed normally.

[0013] 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 position of the worm gear teeth and the worm.

[0014] 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, so as to 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 air vent can ensure that the lubricating oil in the closed oil storage tank can flow smoothly.

[0015] Preferably, the commutation assembly includes a piston slidably mounted in the spoiler cylinder, and the piston is in contact with 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 matching the reciprocating screw is opened at the center of the movable ring.

[0016] 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 cylinder, so that the lubricating oil in the oil storage tank flows along the oil guide head to fill the drive box, and enters the spoiler cylinder from the top of the oil suction pipe. Then, the lubricating oil in the spoiler cylinder 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 the worm, and dissipate the heat of the lubricating oil, thereby ensuring the lubrication effect.

[0017] Preferably, an oil suction pipe and an oil filling pipe are connected to the side wall of the top of the spoiler cylinder, and the oil suction pipe and the oil filling pipe are arranged through a connecting frame. The top of the oil filling pipe passes through the center of the rotating shaft and is fixedly connected to an 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.

[0018] Through the above solution, the oil suction pipe and the oil filling pipe arranged inside the connecting frame save space, avoid the oil circuit design from hindering the flow of fluid, and are conducive to the flow of lubricating oil.

[0019] Preferably, the oil injection pipe and the oil suction pipe are both provided with corresponding one-way valves.

[0020] Through the above scheme, 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.

[0021] Preferably, the end of the spoiler tube is configured to be conical, a connecting frame is fixedly mounted on the end of the spoiler tube, and the spoiler tube is fixedly mounted in the through hole through the connecting frame, the spoiler tube is made of metal, and the thickness of the spoiler tube is 0.2 cm.

[0022] Through the above scheme, the spoiler with a conical 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.

[0023] Compared with the prior art, the present invention has the following beneficial effects: 1. By setting up the driving assembly, the motor can drive the worm to rotate counterclockwise in the driving 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 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.

[0024] 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 a 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 an environment 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 increases, 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.

[0025] 3. By setting up a commutation component, in the process of 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 conical 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 avoid the failure of the lubricating oil 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

[0026] Figure 1 It is a schematic diagram of the overall structure of the outer side of the present invention; Figure 2 It is a schematic diagram of the overall structure of the inner side of the present invention; Figure 3 for Figure 1 Schematic diagram of the cross-sectional structure of AA; Figure 4 for Figure 1 Schematic diagram of the cross-sectional structure of the middle BB; Figure 5 It is a schematic diagram of a partial cross-sectional structure of a valve body in an embodiment of the present invention; Figure 6 It is a schematic diagram of the cross-sectional structure of the top end of the driving box in an embodiment of the present invention; Figure 7 It is a schematic diagram of the front cross-sectional structure of the drive box and the maintenance box in the embodiment of the present invention; Figure 8 is a schematic diagram of the structure of the reinforcing ribs in an embodiment of the present invention; Figure 9 Schematic diagram of the cross-sectional structure of the reinforcing rib in an embodiment of the present invention.

[0027] In the figure: 1. Valve body; 101. Flange; 102. Spool; 1021. Reinforcing rib; 1022. Through hole; 1023. Small generator motor; 1024. Turbine blade; 1025. Pressurizing part; 1026. Sealing ring; 103. Storage battery; 104. Rotating shaft; 2. Drive box; 201. Motor; 202. Rotating disk; 203. Worm; 204. Worm gear teeth; 3. Maintenance box; 301. Oil storage tank; 302. Vent hole; 303. Oil guide head; 304. Oil return pipe; 4. Turbulence tube; 401. Reciprocating lead screw; 402. Movable ring; 403. Piston; 404. Check valve; 405. Connecting frame; 4051. Oil injection pipe; 4052. Oil suction pipe. Detailed implementation mode

[0028] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0029] Please refer to Figures 1 to 9 , the present invention provides a low-resistance high-pressure double-eccentric butterfly valve, and the technical solution is as follows: A low-resistance high-pressure double-eccentric butterfly valve includes a valve body 1, two flanges 101, a spool 102, a storage battery 103, and a rotating shaft 104. The two flanges 101 are respectively fixedly installed at both ends of the valve body 1. A sealing ring 1026 is embedded on the outer side wall of the middle position of the spool 102. The spool 102 is eccentrically arranged with respect to the valve body 1, and at the end of the spool 102 located inside the valve body 1, the rotating shaft 104 is fixedly connected to the rear end of the spool 102. The rotating shaft 104 is eccentrically rotatably installed inside the valve body 1. A drive box 2 is fixedly installed at the top of the valve body 1, and a maintenance box 3 is fixedly installed at the top of the drive box 2. A drive assembly for driving the spool 102 to rotate within the range of 0° to 90° is provided inside the drive box 2. A reinforcing rib 1021 is fixedly installed on one side of the spool 102 close to the rotating shaft 104. A plurality of through holes 1022 are evenly opened on the reinforcing rib 1021. A turbulence tube 4 is fixedly installed on the topmost through hole 1022. A flow conversion assembly for providing a maintenance effect for the drive assembly is provided inside the turbulence tube 4. An energy storage assembly for providing energy for the drive assembly is provided inside the through hole 1022, and the energy storage assembly drives the flow conversion assembly to operate.

[0030] The driving assembly includes a rotating disk 202 rotatably mounted in the driving box 2, on which a worm gear 204 is provided. A worm 203 meshing with the worm gear 204 is also rotatably mounted on the driving box 2. 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 204 occupies one quarter of the rotating disk 202.

[0031] A motor 201 is fixedly mounted on the side wall of the driving 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 .

[0032] 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 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 needs, 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, and can ensure the normal use of the valve body 1.

[0033] As an embodiment of the present invention, refer to Figures 2 - 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 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.

[0034] 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 blades 1024 can be driven by the fluid. At this time, the turbine blades 1024 can drive the small generator motor 1023 to work, and can use the kinetic energy of the fluid to generate electricity, can avoid external power supply, can be used in an environment where it is inconvenient to power on, and can improve the practicality of the butterfly valve. 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 rotation speed of the turbine blades 1024 will become faster, which can ensure the power generation efficiency.

[0035] 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.

[0036] In this embodiment, a plurality of small power generation motors 1023 can charge the storage battery 103, can provide sufficient energy for the motor 201, and ensure that the valve core 102 can be opened and closed normally.

[0037] As an implementation manner of the present invention, referring to Figure 7 , an oil storage tank 301 is provided in the maintenance box 3. The oil storage tank 301 is filled with lubricating oil. The bottom wall of the oil storage tank 301 is inclined downward. A ventilation hole 302 is provided at the top of the maintenance box 3. The bottom end of the oil storage tank 301 is connected with an oil guiding head 303, and the bottom end of the oil guiding head 303 extends to the meshing part of the worm gear 204 and the worm 203.

[0038] In this embodiment, the lubricating oil in the oil storage tank 301 can flow along the oil guiding head 303 to the meshing part of the worm gear 204 and the worm 203, can lubricate the worm gear 204 and the worm 203, can ensure the transmission effect of the worm gear 204 and the worm 203, can reduce the wear of the worm gear 204 and the worm 203, can ensure the rotation of the valve core 102, and the ventilation hole 302 can ensure the smooth flow of the lubricating oil in the closed oil storage tank 301.

[0039] As an implementation manner of the present invention, referring to Figure 9 , the commutation assembly includes a piston 403 slidably installed in the spoiler cylinder 4, and the piston 403 is in contact with the inner wall of the spoiler cylinder 4. A movable ring 402 is fixedly installed inside the piston 403. A reciprocating lead screw 401 is fixedly installed on the central axis of the turbine blade 1024. The movable ring 402 is sleeved outside the reciprocating lead screw 401, and a threaded hole adapted to the reciprocating lead screw 401 is provided at the center of the movable ring 402.

[0040] In this embodiment, during the process of the fluid driving the turbine blade 1024 to rotate, the reciprocating lead screw 401 can rotate synchronously. At this time, the reciprocating lead screw 401 can drive the movable ring 402 to reciprocate along the reciprocating lead screw 401. During the reciprocating movement of the movable ring 402, the piston 403 can reciprocate synchronously. At this time, the piston 403 can create a 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 guiding head 303 and enters the spoiler cylinder 4 from the top end of the oil suction pipe 4052, and then injects the lubricating oil in the spoiler cylinder 4 back into the oil storage tank 301 along the oil injection pipe 4051. It can make the lubricating oil flow continuously, can lubricate the worm gear 204 and the worm 203, and can dissipate heat from the lubricating oil, and can ensure the lubrication effect.

[0041] As an implementation manner of the present invention, referring to Figure 9An oil suction pipe 4052 and an oil filling pipe 4051 are connected to the side wall at 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.

[0042] In this embodiment, 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 flow of fluid, and facilitate the flow of lubricating oil.

[0043] 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.

[0044] 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.

[0045] As an embodiment of the present invention, refer to Figure 9 The end of the spoiler tube 4 is set to be conical, and a connecting frame 405 is fixedly installed on the end of the spoiler tube 4. 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.

[0046] 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. The small thickness is conducive to the heat dissipation of the lubricating oil.

[0047] 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 move the worm gear 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, and the sealing ring 1026 can ensure the sealing effect when the valve core 102 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, 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. 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 power generation motor 1023 to work, can generate electricity by using the kinetic energy of the fluid, can avoid an external power supply, can be used in an environment where it is inconvenient to power on, can improve the practicability of the butterfly valve, and because the inner diameter of the pressure increasing part 1025 gradually decreases, the pressure of the fluid entering the pressure increasing part 1025 becomes larger, so the rotation speed of the turbine blade 1024 will become faster, which can ensure the power generation efficiency. And through multiple small power generation motors 1023, the storage battery 103 can be charged, can provide sufficient energy for the motor 201, and ensure that the valve core 102 can be opened and closed normally; During use, the lubricating oil in the oil storage tank 301 can flow along the oil guiding head 303 to the meshing part of the worm gear teeth 204 and the worm 203, can lubricate the worm gear teeth 204 and the worm 203, can ensure the transmission effect of the worm gear teeth 204 and the worm 203, can reduce the wear of the worm gear teeth 204 and the worm 203, can ensure the rotation of the valve core 102, and the vent hole 302 can ensure that the lubricating oil in the sealed oil storage tank 301 can flow smoothly; During the process of the fluid driving the turbine blade 1024 to rotate, the reciprocating lead screw 401 can rotate synchronously. At this time, the reciprocating lead screw 401 can drive the movable ring 402 to reciprocate along the reciprocating lead screw 401. During the reciprocating movement of the movable ring 402, the piston 403 can reciprocate synchronously. At this time, the piston 403 can generate a negative pressure in the spoiler tube 4, so that the lubricating oil in the oil storage tank 301 fills the drive box 2 along the oil guiding head 303 and enters the spoiler tube 4 from the top of the oil suction pipe 4052, and then the lubricating oil in the spoiler tube 4 is re-injected into the oil storage tank 301 along the oil injection pipe 4051, which can make the lubricating oil flow continuously, can lubricate the worm gear teeth 204 and the worm 203 while dissipating heat from the lubricating oil, can ensure the lubrication effect. The oil suction pipe 4052 and the oil injection pipe 4051 arranged inside the connecting frame 405 save the occupied space and avoid the oil circuit design from hindering the fluid flow, which is beneficial to the flow of the lubricating oil; The one-way valve 404 can ensure that the lubricating oil enters the spoiler tube 4 unidirectionally along the oil suction pipe 4052 and flows back to the oil storage tank 301 unidirectionally along the oil injection pipe 4051, can ensure the flow of the lubricating oil, and the spoiler tube 4 with a tapered end can reduce the resistance of the fluid passing through the through hole 1022. And the spoiler tube 4 made of metal has good heat conduction performance. Therefore, when the lubricating oil is sucked into the spoiler tube 4, the fluid flow can take away the heat of the lubricating oil during the working process, can prevent the lubricating oil from failing due to high temperature, can ensure the lubrication effect, and the smaller thickness helps to dissipate the heat of the lubricating oil.

[0048] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A low resistance and 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 respectively fixedly mounted on the two ends of the valve body (1), and a sealing ring (1026) is embedded on the outer wall at 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 an end portion 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 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); a driving box (2) is provided inside the driving box (2) to drive the valve core (102) within a range of 0° to 90° A rotating drive component, wherein a reinforcing rib (1021) is fixedly mounted on one side of the valve core (102) close to the rotating shaft (104), a plurality of through holes (1022) are evenly arranged on the reinforcing rib (1021), a spoiler cylinder (4) is fixedly mounted on the topmost through hole (1022), a flow conversion component for providing a maintenance effect for the drive component is arranged in the spoiler cylinder (4), an energy storage component for providing energy for the drive component is arranged in the through hole (1022), and the energy storage component drives the flow conversion component to operate.

2. A low resistance and high pressure double eccentric butterfly valve according to claim 1, characterized in that: The drive assembly comprises a rotating disk (202) rotatably mounted in a drive box (2), the rotating disk (202) being provided with worm gear teeth (204), and the drive box (2) also rotatably mounting a worm (203) meshing with the worm gear teeth (204), the rotating disk (202) being designed to be circular, the central axis of the rotating disk (202) being fixedly connected to the central axis of a rotating shaft (104), and the worm gear teeth (204) occupying one quarter of the rotating disk (202).

3. A low resistance and high pressure double eccentric butterfly valve according to claim 2, characterized in that: 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).

4. A low resistance and high pressure double eccentric butterfly valve according to claim 3, characterized in that: The two ends of the reinforcing rib (1021) are designed to be arc-shaped. The energy storage assembly comprises a small generator motor (1023) fixedly mounted in the through hole (1022). A turbine blade (1024) is fixedly connected to the central axis of the small generator motor (1023). 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.

5. A low resistance and high pressure double eccentric butterfly valve according to claim 4, characterized in that: The three small generator motors (1023) are electrically connected to the storage battery (103) respectively.

6. A low resistance and high pressure double eccentric butterfly valve according to claim 4, 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 arranged to be inclined 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).

7. A low resistance and high pressure double eccentric butterfly valve according to claim 6, characterized in that: The commutation assembly comprises a piston (403) slidably mounted in a spoiler cylinder (4), the piston (403) being in contact with the inner wall of the spoiler cylinder (4), a movable ring (402) being fixedly mounted on the inner side of the piston (403), a reciprocating screw (401) being fixedly mounted on the central axis of the turbine blade (1024), the movable ring (402) being sleeved on the outer side of the reciprocating screw (401), and a threaded hole matching the reciprocating screw (401) being provided at the center of the movable ring (402).

8. A low resistance and high pressure double eccentric butterfly valve according to claim 7, characterized in that: An oil suction pipe (4052) and an oil injection pipe (4051) are connected and arranged on the side wall at the top end of the spoiler cylinder (4); 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 an oil return pipe (304); the top end 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).

9. A low resistance and high pressure double eccentric butterfly valve according to claim 8, characterized in that: The oil injection pipe (4051) and the oil suction pipe (4052) are both provided with corresponding one-way valves (404).

10. A low resistance and high pressure double eccentric butterfly valve according to claim 9, characterized in that: The end of the spoiler tube (4) is arranged to be conical, 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.

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