A metal butterfly valve
By designing the lifting and lowering conversion mechanism and the lifting driving mechanism in the metal butterfly valve, the conversion between the replacement block and the flow guide block is solved, and the existing butterfly valve is difficult to disassemble and assemble when there is water, achieving a fast and stable disassembly and assemble process.
Patent Information
- Application Number
- CN202510020627.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-07
- Publication Date
- 2025-04-04
AI Technical Summary
When disassembly and assemble existing butterfly valves are difficult to align with the flange in water, resulting in difficulty in disassembly and assembly.
A metal butterfly valve is designed, including a flow guide main mechanism, a lift and converting mechanism, a valve mechanism, an on-off control mechanism, a lift and drive mechanism and a lubrication mechanism. The lifting and lowering mechanism is driven by the lifting and lowering mechanism, and the conversion between the replacement block and the flow guide block is used to prevent large-scale outflow of water flow, and provide connection support through the flow guide main mechanism to ensure that the pipeline is not interrupted.
It realizes the rapid and convenient disassembly and assembly of butterfly valves in the presence of water, avoids the impact of water flow affecting positioning, and ensures the stability and rapid positioning of pipeline connections.
Smart Images
Figure CN119755338A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of butterfly valves, in particular to a metal butterfly valve. Background Art
[0002] A butterfly valve, also known as a flap valve, is a regulating valve with a simple structure. It can be used for the on-off control of low-pressure pipeline media. A butterfly valve refers to a valve with a closing member as a disc, which rotates around the valve axis to achieve opening and closing. The valve can be used to control the flow of various types of fluids such as air, water, steam, various corrosive media, mud, oil, liquid metal and radioactive media. It mainly plays a cutting and throttling role in the pipeline. The butterfly valve opening and closing member is a disc-shaped butterfly plate, which rotates around its own axis in the valve body to achieve the purpose of opening and closing or regulation.
[0003] When disassembling and assembling the valve body of the butterfly valve on the market, the flange bolts need to be disassembled in the middle of the pipeline, which causes the pipeline to be interrupted in the middle. When operating in the presence of water, the impact of the water flow causes shaking, making it difficult to align the flanges between the two sections of the pipeline, making it difficult to disassemble and assemble in the presence of water. Summary of the invention
[0004] In view of the deficiencies in the prior art, the present invention provides a metal butterfly valve to solve the problems mentioned in the above background.
[0005] The present invention provides the following technical solution: a metal butterfly valve, comprising: a flow guide main body mechanism, a lifting conversion mechanism is arranged inside the flow guide main body mechanism, a valve mechanism is arranged inside the lifting conversion mechanism, an on-off control mechanism is arranged on the top of the lifting conversion mechanism, a lifting drive mechanism is arranged inside the lifting conversion mechanism, and the lifting drive mechanism is located below the lifting conversion mechanism, and a lubrication mechanism is arranged inside the lifting drive mechanism.
[0006] Preferably, the flow guide main body mechanism includes a mounting shell, a docking joint, a lower edge body, a positioning sliding ridge, a first fluid sealing ring and a flange sealing ring, the docking joint is integrally arranged on both sides of the mounting shell, the lower edge body is integrally arranged at the bottom of the mounting shell, the positioning sliding ridge is integrally arranged on the inner walls of the mounting shell and the lower edge body, the first fluid sealing ring is fixedly connected to the inner wall of the mounting shell, and the number of the first fluid sealing rings is two, and the flange sealing ring is respectively fixedly connected to the upper surface of the mounting shell, the side surface of the docking joint and the lower surface of the lower edge body.
[0007] Preferably, the lifting and conversion mechanism includes a guide block, a guide channel, a first positioning groove, a fixed block and a sealing rubber ring, the guide block is slidably connected to the inner wall of the mounting shell, the guide channel passes through and is opened on the surface of the guide block, the first positioning groove is embedded in the surface of the guide block, and the guide block is slidably connected to the positioning slide ridge through the first positioning groove, the fixed block is fixedly connected to the inner wall of the guide block, and the sealing rubber ring is fixedly connected to the inner wall of the guide block through the fixed block.
[0008] Preferably, the lifting and conversion mechanism also includes a displacement block, a second positioning groove and a threaded groove, the displacement block is slidably connected between the mounting shell and the lower edge body, the second positioning groove is embedded in the surface of the displacement block, and the displacement block is slidably connected to the positioning sliding ridge through the second positioning groove, and the threaded groove is opened at the bottom end of the displacement block.
[0009] Preferably, the valve mechanism includes a torsion valve column, a hexagonal column, a limit block, a butterfly valve plate, a docking sleeve, a support valve column and a second fluid sealing ring, the torsion valve column and the support valve column are both rotatably connected to the inside of the guide block through bearings, the hexagonal column is integrally arranged at the top of the torsion valve column, the limit block is fixedly sleeved on the surface of the torsion valve column, the butterfly valve plate is movably arranged inside the guide channel, and the surface of the butterfly valve plate is slidably connected to the surface of the sealing rubber ring, the docking sleeve is integrally arranged on the surface of the butterfly valve plate, and the butterfly valve plate is fixedly connected to the torsion valve column and the support valve column through two docking sleeves respectively, the second fluid sealing ring is fixedly connected to the inside of the torsion valve column, and the number of the second fluid sealing rings is two, and the inner walls of the two second fluid sealing rings are slidably connected to the inner wall of the torsion valve column and the inner wall of the support valve column respectively.
[0010] Preferably, the on-off control mechanism includes a top cover, a connecting frame, a shift ring and a shift port, the top cover is fixedly connected to the top of the mounting shell by bolts, the connecting frame and the shift ring are fixedly connected to the inner wall of the top cover, and the shift ring is located below the connecting frame, and the lower surface of the shift ring is movably connected to the upper surface of the guide block, the shift port is penetrated through the interior of the shift ring, and the limit stop block is located inside the shift port.
[0011] Preferably, the on-off control mechanism also includes a transmission shaft, a worm, a hexagonal socket, a turbine, an on-off handwheel and a rubber sleeve. The transmission shaft is rotatably connected to the inner wall of the top cover through a bearing, the worm is fixedly sleeved on the surface of the transmission shaft, the hexagonal socket is rotatably connected to the inner wall of the connecting frame through a bearing, and a hexagonal groove is provided inside the hexagonal socket, and the hexagonal socket is movably sleeved on the surface of the hexagonal column through the hexagonal groove, the turbine is fixedly sleeved on the surface of the hexagonal socket, and the turbine is meshingly connected to the worm, the on-off handwheel is fixedly sleeved on both ends of the transmission shaft, the rubber sleeve is fixedly connected to the inner wall of the top cover, and the inner wall of the rubber sleeve is slidably connected to the surface of the transmission shaft.
[0012] Preferably, the lifting drive mechanism includes a bottom cover, a threaded push pin, a third fluid sealing ring, a disassembly hand wheel and a dustproof sealing ring. The bottom cover is fixedly installed on the bottom of the lower edge body by bolts, the threaded push pin is rotatably connected to the inside of the bottom cover through a bearing, and the surface of the threaded push pin is threadedly connected to the inner wall of the threaded groove, the third fluid sealing ring is fixedly connected to the inner wall of the bottom cover, and the surface of the third fluid sealing ring is slidably connected to the surface of the threaded push pin, the disassembly hand wheel is fixedly sleeved on the bottom end of the threaded push pin, the dustproof sealing ring is fixedly connected to one side of the disassembly hand wheel, and the surface of the dustproof sealing ring is slidably connected to the surface of the bottom cover.
[0013] Preferably, the lifting drive mechanism includes a lubricating oil sealing ring, a threaded ring, an inner edge block and an oil guide groove, the lubricating oil sealing ring is fixedly connected to the inner wall of the top end of the threaded push column, the threaded ring is threadedly connected to the inner wall of the bottom end of the threaded push column, the inner edge block is integrally arranged on the inner wall of the threaded ring, and the oil guide groove is opened on the surface of the top end of the threaded push column.
[0014] Preferably, the lubrication mechanism includes a spring bottle, an oil guiding hose and a counterweight ring, the spring bottle is arranged inside the threaded push column, and the surface of the top end of the spring bottle is fixedly connected to the inner wall of the threaded push column, the oil guiding hose is fixedly connected to the inside of the spring bottle, the counterweight ring is fixedly sleeved on the bottom end of the oil guiding hose, and lubricating oil is arranged inside the spring bottle.
[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The metal butterfly valve, through the provided flow guide body mechanism, lifting conversion mechanism, valve mechanism, on-off control mechanism, lifting drive mechanism and lubrication mechanism, can, during disassembly and assembly, push the lifting conversion mechanism up and down through the lifting drive mechanism after the bolts of the on-off control mechanism are removed, thereby ensuring that the water flow is prevented from flowing out over a large area for a long time by utilizing the conversion between the displacement block and the flow guide block during disassembly and assembly, and utilizing the flow guide body mechanism to ensure connection support, avoid interruption in the middle of the pipeline, facilitate quick positioning, and is suitable for disassembly and assembly in the presence of water.
[0016] 2. The metal butterfly valve, through the installation shell, the joint, the lower edge body, the positioning sliding ridge, the first fluid sealing ring and the flange sealing ring, can provide support after the valve body composed of the lifting conversion mechanism and the on-off control mechanism is disassembled, to ensure that there is no disconnection in the middle of the pipes at both ends, and to avoid the impact of water flow on positioning.
[0017] 3. The metal butterfly valve, through the set guide block, guide channel, first positioning slide groove, fixed block, sealing rubber ring, replacement block, second positioning slide groove and threaded groove, can replace the position of the guide block by the replacement block during disassembly to avoid the water flow being always open, and can assist in the disassembly of the guide block by pushing the replacement block when it rises.
[0018] 4. The metal butterfly valve, through the twisting valve column, hexagonal column, limit block, butterfly valve plate, docking tube, support valve column and second fluid sealing ring, can realize the opening and closing of the passage by changing the angle of the butterfly valve plate, and form positioning through the limit block to ensure that the user can get resistance feedback at maximum water flow and closing.
[0019] 5. The metal butterfly valve, through the bottom cover, threaded push pin, third fluid sealing ring, disassembly hand wheel, dustproof sealing ring, lubricating oil sealing ring, threaded ring, inner edge block and oil guide groove, can use the rotation of the threaded push pin to push the displacement block up and down, thereby assisting the disassembly of the guide block.
[0020] 6. The metal butterfly valve, through the provided spring bottle, oil guide hose and counterweight ring, can squeeze the spring bottle to spray out lubricating oil before using the threaded push rod, thereby improving the smoothness of the threaded push rod when twisting. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 It is a side sectional view of the present invention; Figure 3 It is a schematic diagram of the explosion structure of the present invention; Figure 4 This is a schematic diagram of the structure of the flow guide main body mechanism of the present invention; Figure 5 It is a schematic diagram of the internal explosion of the on-off control mechanism of the present invention from a bottom-up perspective; Figure 6 It is a schematic diagram of the connection structure between the limit stopper and the stop ring of the present invention; Figure 7 It is a structural schematic diagram of the guide block position of the present invention; Figure 8 It is a schematic diagram of the explosion structure at the position of the valve mechanism of the present invention; Fig. 9 This is a schematic diagram of the internal explosion structure of the lifting conversion mechanism of the present invention; Fig.10It is a schematic diagram of the structure of the lifting drive mechanism of the present invention; Fig.11 It is a cross-sectional view of the lifting drive mechanism of the present invention.
[0022] In the figure: 101, mounting shell; 102, docking joint; 103, lower edge body; 104, positioning sliding ridge; 105, first fluid sealing ring; 106, flange sealing ring; 201, guide block; 202, guide channel; 203, first positioning slide groove; 204, fixing block; 205, sealing rubber ring; 206, displacement block; 207, second positioning slide groove; 208, thread groove; 301, twisting valve column; 302, hexagonal column; 303, limit stopper; 304, butterfly valve plate; 305, docking sleeve; 306, support valve column; 307, second fluid Sealing ring; 401, top cover; 402, connecting frame; 403, shift ring; 404, shift port; 405, transmission shaft; 406, worm; 407, hexagon socket; 408, turbine; 409, on-off handwheel; 410, rubber sleeve; 501, bottom cover; 502, threaded push pin; 503, third fluid sealing ring; 504, disassembly handwheel; 505, dustproof sealing ring; 506, lubricating oil sealing ring; 507, threaded ring; 508, inner edge block; 509, oil guide groove; 601, spring bottle; 602, oil guide hose; 603, counterweight ring. DETAILED DESCRIPTION
[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.
[0024] See also Figure 1-11 A metal butterfly valve comprises: a flow guiding body mechanism, a lifting conversion mechanism is arranged inside the flow guiding body mechanism, a valve mechanism is arranged inside the lifting conversion mechanism, an on-off control mechanism is arranged on the top of the lifting conversion mechanism, a lifting drive mechanism is arranged inside the lifting conversion mechanism, and the lifting drive mechanism is located below the lifting conversion mechanism, and a lubrication mechanism is arranged inside the lifting drive mechanism. Through the provided flow guiding body mechanism, lifting conversion mechanism, valve mechanism, on-off control mechanism, lifting drive mechanism and lubrication mechanism, the lifting conversion mechanism can be lifted and lowered by the lifting drive mechanism after the bolts of the on-off control mechanism are removed during disassembly and assembly, thereby ensuring that the water flow is prevented from flowing out over a large area for a long time by utilizing the conversion between the displacement block 206 and the flow guiding block 201 during disassembly and assembly, and utilizing the flow guiding body mechanism to ensure connection support, avoid interruption in the middle of the pipeline, facilitate quick positioning, and be suitable for disassembly and assembly in the presence of water.
[0025] The main body of the flow guide mechanism includes a mounting shell 101, a butt joint 102, a lower body 103, a positioning ridge 104, a first fluid sealing ring 105 and a flange sealing ring 106. The butt joint 102 is integrally arranged on both sides of the mounting shell 101, the lower body 103 is integrally arranged at the bottom of the mounting shell 101, the positioning ridge 104 is integrally arranged on the inner wall of the mounting shell 101 and the lower body 103, the first fluid sealing ring 105 is fixedly connected to the inner wall of the mounting shell 101, and the first fluid sealing ring 106 is fixedly connected to the inner wall of the mounting shell 101. There are two rings 105, and the flange sealing ring 106 is respectively fixedly connected to the upper surface of the mounting shell 101, the side of the docking joint 102 and the lower surface of the lower edge body 103. Through the arrangement of the mounting shell 101, the docking joint 102, the lower edge body 103, the positioning sliding ridge 104, the first fluid sealing ring 105 and the flange sealing ring 106, support can be provided after the valve body composed of the lifting conversion mechanism and the on-off control mechanism is disassembled, ensuring that there is no disconnection in the middle of the pipes at both ends, thereby avoiding the impact of water flow on positioning.
[0026] Among them; the lifting and conversion mechanism includes a guide block 201, a guide channel 202, a first positioning groove 203, a fixed block 204 and a sealing rubber ring 205, the guide block 201 is slidably connected to the inner wall of the mounting shell 101, the guide channel 202 runs through the surface of the guide block 201, the first positioning groove 203 is embedded in the surface of the guide block 201, and the guide block 201 is slidably connected to the positioning slide ridge 104 through the first positioning groove 203, the fixed block 204 is fixedly connected to the inner wall of the guide block 201, and the sealing rubber ring 205 is fixedly connected to the inner wall of the guide block 201 through the fixed block 204.
[0027] Among them; the lifting and conversion mechanism also includes a replacement block 206, a second positioning groove 207 and a threaded groove 208. The replacement block 206 is slidably connected between the mounting shell 101 and the lower edge body 103. The second positioning groove 207 is embedded in the surface of the replacement block 206, and the replacement block 206 is slidably connected with the positioning sliding ridge 104 through the second positioning groove 207. The threaded groove 208 is opened at the bottom end of the replacement block 206. Through the set guide block 201, guide channel 202, first positioning groove 203, fixed block 204, sealing rubber ring 205, replacement block 206, second positioning groove 207 and threaded groove 208, the position of the guide block 201 can be replaced by the replacement block 206 during disassembly to avoid the water flow being always open, and the auxiliary guide block 201 can be disassembled by pushing the replacement block 206 when it rises.
[0028] The valve mechanism includes a twisting valve column 301, a hexagonal column 302, a limit stopper 303, a butterfly valve plate 304, a docking sleeve 305, a support valve column 306 and a second fluid sealing ring 307. The twisting valve column 301 and the support valve column 306 are both rotatably connected to the inside of the guide block 201 through a bearing. The hexagonal column 302 is integrally arranged at the top of the twisting valve column 301. The limit stopper 303 is fixedly sleeved on the surface of the twisting valve column 301. The butterfly valve plate 304 is movably arranged in the inside of the guide channel 202, and the surface of the butterfly valve plate 304 is slidably connected to the surface of the sealing rubber ring 205. The docking sleeve 305 is integrally arranged on the surface of the butterfly valve plate 304, and the butterfly valve plate 304 is respectively connected to the surface of the sealing rubber ring 205 through two docking sleeves 30 5 is fixedly connected to the twisting valve column 301 and the supporting valve column 306, the second fluid sealing ring 307 is fixedly connected to the inside of the twisting valve column 301, and the number of the second fluid sealing rings 307 is two, and the inner walls of the two second fluid sealing rings 307 are respectively slidably connected to the inner wall of the twisting valve column 301 and the inner wall of the supporting valve column 306, through the twisting valve column 301, the hexagonal column 302, the limit stopper 303, the butterfly valve plate 304, the docking sleeve 305, the supporting valve column 306 and the second fluid sealing ring 307, the opening and closing of the passage can be realized by changing the angle of the butterfly valve plate 304, and the positioning is formed by the limit stopper 303, so as to ensure that the user can get the resistance feedback when the maximum water flow and the closing are achieved.
[0029] Among them; the on-off control mechanism includes a top cover 401, a connecting frame 402, a shift ring 403 and a shift port 404, the top cover 401 is fixedly connected to the top of the mounting shell 101 by bolts, the connecting frame 402 and the shift ring 403 are fixedly connected to the inner wall of the top cover 401, and the shift ring 403 is located below the connecting frame 402, and the lower surface of the shift ring 403 is movably connected to the upper surface of the guide block 201, the shift port 404 is opened through the inside of the shift ring 403, and the limit stopper 303 is located inside the shift port 404. When in use, the limit stopper 303 will be blocked by the shift port 404 when it rotates ninety degrees, so that the user can know whether the butterfly valve plate 304 is opened to the maximum or closed through resistance feedback.
[0030] Among them, the on-off control mechanism also includes a transmission shaft 405, a worm 406, a hexagon socket 407, a turbine 408, an on-off handwheel 409 and a rubber sleeve 410. The transmission shaft 405 is rotatably connected to the inner wall of the top cover 401 through a bearing, the worm 406 is fixedly sleeved on the surface of the transmission shaft 405, the hexagon socket 407 is rotatably connected to the inner wall of the connecting frame 402 through a bearing, and the hexagon socket 407 is provided with a hexagonal groove inside, and the hexagon socket 407 is movable through the hexagonal groove. The movable sleeve is connected to the surface of the hexagonal column 302, the turbine 408 is fixedly sleeved on the surface of the inner hexagonal plug 407, and the turbine 408 is meshed with the worm 406, the on-off handwheel 409 is fixedly sleeved on both ends of the transmission shaft 405, the rubber sleeve 410 is fixedly connected to the inner wall of the top cover 401, and the inner wall of the rubber sleeve 410 is slidably connected to the surface of the transmission shaft 405, and the inner hexagonal plug 407 is connected to the hexagonal column 302 through the docking, so that the on-off control mechanism and the valve mechanism can be separated at any time.
[0031] The lifting drive mechanism includes a bottom cover 501, a threaded push column 502, a third fluid sealing ring 503, a disassembly hand wheel 504 and a dustproof sealing ring 505. The bottom cover 501 is fixedly installed at the bottom of the lower body 103 by bolts, the threaded push column 502 is rotatably connected to the inside of the bottom cover 501 through a bearing, and the surface of the threaded push column 502 is threadedly connected to the inner wall of the thread groove 208, the third fluid sealing ring 503 is fixedly connected to the inner wall of the bottom cover 501, and the surface of the third fluid sealing ring 503 is slidably connected to the surface of the threaded push column 502, and the disassembly hand wheel 504 is connected to the inner wall of the thread groove 208. The wheel 504 is fixedly sleeved on the bottom end of the threaded push column 502, the dustproof sealing ring 505 is fixedly connected to one side of the disassembly hand wheel 504, and the surface of the dustproof sealing ring 505 is slidably connected to the surface of the bottom cover 501. Through the bottom cover 501, threaded push column 502, third fluid sealing ring 503, disassembly hand wheel 504, dustproof sealing ring 505, lubricating oil sealing ring 506, threaded ring 507, inner edge block 508 and oil guide groove 509, the rotation of the threaded push column 502 can be used to push the replacement block 206 up and down, thereby assisting the disassembly of the guide block 201.
[0032] Among them, the lifting drive mechanism preferably includes a lubricating oil sealing ring 506, a threaded ring 507, an inner edge block 508 and an oil guide groove 509. The lubricating oil sealing ring 506 is fixedly connected to the inner wall of the top end of the threaded push column 502, the threaded ring 507 is threadedly connected to the inner wall of the bottom end of the threaded push column 502, the inner edge block 508 is integrally arranged on the inner wall of the threaded ring 507, and the oil guide groove 509 is opened on the surface of the top end of the threaded push column 502.
[0033] Among them; the lubrication mechanism includes a spring bottle 601, an oil guiding hose 602 and a counterweight ring 603, the spring bottle 601 is arranged inside the threaded push column 502, and the surface of the top end of the spring bottle 601 is fixedly connected to the inner wall of the threaded push column 502, the oil guiding hose 602 is fixedly connected to the inside of the spring bottle 601, the counterweight ring 603 is fixedly sleeved on the bottom end of the oil guiding hose 602, and the inside of the spring bottle 601 is provided with lubricating oil, by means of the arranged spring bottle 601, the lubricating oil can be squeezed out of the spring bottle 601 before using the threaded push column 502, thereby improving the smoothness of the threaded push column 502 when twisting.
[0034] Working principle: when switching, twist the on-off hand wheel 409, the on-off hand wheel 409 drives the worm 406 to rotate through the transmission shaft 405, the worm 406 drives the turbine 408 to rotate, the turbine 408 drives the hexagonal column 302 through the hexagonal plug 407 to rotate the twisting valve column 301, and the twisting valve column 301 rotates and drives the butterfly valve plate 304 to rotate, and the switch is realized by changing the rotation angle of the butterfly valve plate 304. At the same time, when rotating, the limit stopper 303 rotates 90 degrees and will be blocked by the inner wall of the stopper port 404, forming a limit; When disassembling the valve body, first squeeze the threaded push column 502 from under the threaded ring 507, and then squeeze the spring bottle 601. The spring bottle 601 is compressed, and the lubricating oil inside it is discharged from the outlet of the spring bottle 601 through the oil guide hose 602, and then enters the threaded groove 208 along the oil guide groove 509 for lubrication, and then remove the bolts between the top cover 401 and the mounting shell 101, and then twist the disassembly hand wheel 504, the disassembly hand wheel 504 drives the threaded push column 502, and the threaded push column 502 pushes the displacement block 206 to rise through the thread, and when the displacement block 206 rises, it pushes the guide block 201 to rise until the displacement block 206 replaces the original position of the guide block 201, and then directly take out the lifting conversion mechanism and the on-off control mechanism as the valve body, and then replace the new valve body, and install the new conversion mechanism and on-off control mechanism; During installation, first align the first positioning groove 203 of the guide block 201 with the positioning slide ridge 104, then press the guide block 201 down, and twist the disassembly hand wheel 504 in the opposite direction at the same time. The disassembly hand wheel 504 drives the threaded push column 502 to reverse, and the threaded push column 502 pushes the replacement block 206 down through the thread, so that the guide block 201 gradually slides down to the position of replacing the replacement block 206 inside the installation shell 101 until the replacement block 206 reaches the end. At this time, the guide block 201 also reaches the specified position, and then the hexagonal socket 407 of the on-off control mechanism is aligned with the hexagonal column 302 and sleeved, and then the bolt holes between the top cover 401 and the installation shell 101 are aligned and fixed by bolts.
[0035] Although 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 the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A metal butterfly valve, characterized in that: include: A flow guide body mechanism, wherein a lifting conversion mechanism is arranged inside the flow guide body mechanism, a valve mechanism is arranged inside the lifting conversion mechanism, an on-off control mechanism is arranged on the top of the lifting conversion mechanism, a lifting drive mechanism is arranged inside the lifting conversion mechanism, and the lifting drive mechanism is located below the lifting conversion mechanism, and a lubrication mechanism is arranged inside the lifting drive mechanism.
2. A metal butterfly valve according to claim 1, characterized in that: The flow guide main body mechanism comprises a mounting shell (101), a docking head (102), a lower edge body (103), a positioning sliding ridge (104), a first fluid sealing ring (105) and a flange sealing ring (106); the docking head (102) is respectively arranged in an integral manner on both sides of the mounting shell (101); the lower edge body (103) is arranged in an integral manner at the bottom of the mounting shell (101); the positioning sliding ridge (104) is arranged in an integral manner on the inner walls of the mounting shell (101) and the lower edge body (103); the first fluid sealing ring (105) is fixedly connected to the inner wall of the mounting shell (101); and the number of the first fluid sealing rings (105) is two; and the flange sealing ring (106) is respectively fixedly connected to the upper surface of the mounting shell (101), the side surface of the docking head (102) and the lower surface of the lower edge body (103).
3. A metal butterfly valve according to claim 2, characterized in that: The lifting conversion mechanism comprises a guide block (201), a guide channel (202), a first positioning slide groove (203), a fixed block (204) and a sealing rubber ring (205); the guide block (201) is slidably connected to the inner wall of the mounting shell (101); the guide channel (202) penetrates and is opened on the surface of the guide block (201); the first positioning slide groove (203) is embedded in the surface of the guide block (201); the guide block (201) is slidably connected to the positioning slide ridge (104) through the first positioning slide groove (203); the fixed block (204) is fixedly connected to the inner wall of the guide block (201); and the sealing rubber ring (205) is fixedly connected to the inner wall of the guide block (201) through the fixed block (204).
4. A metal butterfly valve according to claim 3, characterized in that: The lifting conversion mechanism also includes a displacement block (206), a second positioning slide groove (207) and a threaded groove (208); the displacement block (206) is slidably connected between the mounting shell (101) and the lower edge body (103); the second positioning slide groove (207) is embedded in the surface of the displacement block (206); and the displacement block (206) is slidably connected to the positioning slide ridge (104) via the second positioning slide groove (207); and the threaded groove (208) is provided at the bottom end of the displacement block (206).
5. A metal butterfly valve according to claim 3, characterized in that: The valve mechanism comprises a twisting valve column (301), a hexagonal column (302), a limit stopper (303), a butterfly valve plate (304), a docking sleeve (305), a support valve column (306) and a second fluid sealing ring (307); the twisting valve column (301) and the support valve column (306) are both rotatably connected to the inside of the guide block (201) via a bearing; the hexagonal column (302) is integrally arranged on the top of the twisting valve column (301); the limit stopper (303) is fixedly sleeved on the surface of the twisting valve column (301); the butterfly valve plate (304) is movably arranged inside the guide channel (202); and The surface of the butterfly valve plate (304) is slidably connected to the surface of the sealing rubber ring (205); the docking sleeve (305) is integrally arranged on the surface of the butterfly valve plate (304); and the butterfly valve plate (304) is fixedly connected to the twisting valve column (301) and the supporting valve column (306) through the two docking sleeves (305); the second fluid sealing ring (307) is fixedly connected to the inside of the twisting valve column (301); and the number of the second fluid sealing rings (307) is two, and the inner walls of the two second fluid sealing rings (307) are slidably connected to the inner wall of the twisting valve column (301) and the inner wall of the supporting valve column (306).
6. A metal butterfly valve according to claim 5, characterized in that: The on-off control mechanism comprises a top cover (401), a connecting frame (402), a shift ring (403) and a shift opening (404); the top cover (401) is fixedly connected to the top of the mounting shell (101) by means of bolts; the connecting frame (402) and the shift ring (403) are both fixedly connected to the inner wall of the top cover (401); the shift ring (403) is located below the connecting frame (402); the lower surface of the shift ring (403) is movably connected to the upper surface of the guide block (201); the shift opening (404) is opened through the inside of the shift ring (403); and the limit stopper (303) is located inside the shift opening (404).
7. A metal butterfly valve according to claim 6, characterized in that: The on-off control mechanism further comprises a transmission shaft (405), a worm (406), an inner hexagon socket (407), a turbine (408), an on-off hand wheel (409) and a rubber sleeve (410); the transmission shaft (405) is rotatably connected to the inner wall of the top cover (401) via a bearing; the worm (406) is fixedly sleeved on the surface of the transmission shaft (405); the inner hexagon socket (407) is rotatably connected to the inner wall of the connecting frame (402) via a bearing; and the inner opening of the inner hexagon socket (407) is A hexagonal slot is provided, and the inner hexagonal insert (407) is movably sleeved on the surface of the hexagonal column (302) through the hexagonal slot, the turbine (408) is fixedly sleeved on the surface of the inner hexagonal insert (407), and the turbine (408) is meshingly connected with the worm (406), the on-off hand wheel (409) is fixedly sleeved on both ends of the transmission shaft (405), the rubber sleeve (410) is fixedly connected to the inner wall of the top cover (401), and the inner wall of the rubber sleeve (410) is slidably connected to the surface of the transmission shaft (405).
8. A metal butterfly valve according to claim 4, characterized in that: The lifting drive mechanism comprises a bottom cover (501), a threaded push column (502), a third fluid sealing ring (503), a disassembly hand wheel (504) and a dustproof sealing ring (505); the bottom cover (501) is fixedly mounted on the bottom of the lower edge body (103) by means of bolts; the threaded push column (502) is rotatably connected to the inside of the bottom cover (501) by means of a bearing; the surface of the threaded push column (502) is threadedly connected to the inner wall of the threaded groove (208); the third fluid sealing ring (503) is fixedly connected to the inner wall of the bottom cover (501); the surface of the third fluid sealing ring (503) is slidably connected to the surface of the threaded push column (502); the disassembly hand wheel (504) is fixedly sleeved on the bottom end of the threaded push column (502); the dustproof sealing ring (505) is fixedly connected to one side of the disassembly hand wheel (504); and the surface of the dustproof sealing ring (505) is slidably connected to the surface of the bottom cover (501).
9. A metal butterfly valve according to claim 8, characterized in that: The lifting drive mechanism preferably comprises a lubricating oil sealing ring (506), a threaded ring (507), an inner edge block (508) and an oil guide groove (509); the lubricating oil sealing ring (506) is fixedly connected to the inner wall at the top end of the threaded push column (502); the threaded ring (507) is threadedly connected to the inner wall at the bottom end of the threaded push column (502); the inner edge block (508) is integrally arranged on the inner wall of the threaded ring (507); and the oil guide groove (509) is opened on the surface of the top end of the threaded push column (502).
10. A metal butterfly valve according to claim 9, characterized in that: The lubrication mechanism comprises a spring bottle (601), an oil guide hose (602) and a counterweight ring (603); the spring bottle (601) is arranged inside the threaded push column (502), and the surface of the top end of the spring bottle (601) is fixedly connected to the inner wall of the threaded push column (502); the oil guide hose (602) is fixedly connected to the inside of the spring bottle (601); the counterweight ring (603) is fixedly sleeved on the bottom end of the oil guide hose (602), and lubricating oil is arranged inside the spring bottle (601).