Worm gear wafer butterfly valve

Abstract

The utility model relates to the technical field of butterfly valves, in particular to a worm gear wafer butterfly valve, which can improve the control accuracy of a valve plate under the assistance of an auxiliary device when the valve plate is pneumatically controlled, can reduce the cost, is environment-friendly and labor-saving compared with electric control when the valve plate is manually controlled, and can improve the control accuracy of the valve plate when the valve plate is manually controlled. The pneumatic effect is achieved, the cost is saved, and control is more accurate; comprising a valve body, a valve plate, a box body, two sets of fixing frames, a worm, a worm gear, a manual device, a pneumatic device and an auxiliary device, the pneumatic device is installed on the upper side of the box body, and the auxiliary device is installed on the pneumatic device, connected with the box body in a matched mode and connected with the left end of the worm in a matched mode.

Description

Technical Field

[0001] The utility model relates to the technical field of butterfly valves, in particular to a worm gear clamp butterfly valve. Background Art

[0002] The worm gear wafer butterfly valve is small in size and light in weight. It can be used as a device to cut off and regulate flow in various media pipelines. The wafer butterfly valve is used in pipelines of petroleum, chemical, food, medicine, papermaking, hydropower, shipbuilding, water supply and drainage, smelting, energy and other systems. The worm gear wafer butterfly valve can be used as a regulating and intercepting device on a variety of corrosive and non-corrosive gas, liquid, semi-fluid and solid powder pipes and containers.

[0003] Usually, worm gear wafer butterfly valves use three transmission methods: manual, pneumatic, and electric. Manually controlled butterfly valves have a low degree of automation and consume a lot of manpower. The disadvantage of pneumatic is the low control accuracy. The electric one has a simpler structure and higher production cost. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a worm gear clamp butterfly valve which, by setting up this equipment, can improve the accuracy of valve plate control with the assistance of auxiliary devices when the valve plate is pneumatically controlled. When the valve plate is manually controlled, it can not only reduce costs more than electric control, be environmentally friendly and labor-saving, but also has the cost savings of pneumatic and more precise control.

[0005] The utility model discloses a worm gear clamp butterfly valve, comprising a valve body, a valve plate, a box, two groups of fixing frames, a worm, a worm gear, a manual device, a pneumatic device and an auxiliary device. The valve plate is located inside the valve body, the box is installed at the top end of the valve body, a through hole is provided at the bottom of the box, a valve shaft is provided on the valve plate, the valve shaft is rotatably installed in the through hole of the box, the two groups of fixing frames are respectively installed in the box, the worm is rotatably installed on the two groups of fixing frames, the worm gear is installed at the top end of the valve shaft of the valve plate, the worm gear is meshed with the worm, the manual device is installed on the right side of the box, the manual device is connected to the right end of the worm, the pneumatic device is installed on the upper side of the box, the auxiliary device is installed on the pneumatic device, the auxiliary device is matched with the box, and the auxiliary device is matched with the left end of the worm.

[0006] The utility model discloses a worm gear clamp butterfly valve, the manual device comprises a slide rod, a hand wheel, a first bolt, a rotating ring, a clamping block, two groups of limit blocks and a first connecting rod, the hand wheel is mounted on the right end of the slide rod, a mounting opening is connected to the lower side of the right end of a box body, the rotating ring is rotatably mounted at the mounting opening of the box body, the slide rod is slidably connected to the rotating ring, a threaded hole is connected to the right side of the front end of the rotating ring, the first bolt is threadedly connected to the threaded hole of the rotating ring, the first bolt is tightened against the slide rod, the clamping block is mounted on the left end of the slide rod, the two groups of limit blocks are respectively mounted on the upper and lower parts of the right side of the first connecting rod, the two groups of limit blocks are clamped together with the clamping block, and the left end of the first connecting rod is connected to the right end of the worm.

[0007] The utility model discloses a worm gear clamp butterfly valve, a pneumatic device comprises an inner tank, a cover plate, two groups of second bolts, a solenoid valve, four groups of L-shaped plates, a collecting plate, a filter screen, a piston and a mounting frame, the inner tank is mounted on the bottom end of the cover plate through the mounting frame, the cover plate is fixed to the top end of the box body through the two groups of second bolts, the solenoid valve is mounted on the upper right end of the box body, the output end of the solenoid valve is communicated with the inner tank, a working chamber is arranged inside the inner tank, the left sides of the top end and the bottom end of the inner tank are both communicated with exhaust ports, the output end of the exhaust port at the top end of the inner tank passes through the cover plate and extends to the upper side of the cover plate, the four groups of L-shaped plates are symmetrically mounted on the left side of the bottom end of the inner tank, the collecting plate is slidably connected to the four groups of L-shaped plates, the collecting plate corresponds to the exhaust port position at the bottom end of the inner tank, the filter screen is mounted on the output end of the exhaust port at the top end of the inner tank, the piston slides in the working chamber of the inner tank, and the piston is cooperatively connected with the auxiliary device.

[0008] The utility model discloses a worm gear clamp butterfly valve, an auxiliary device comprises a slide rail, a mounting seat, a micro electric push rod, a second connecting rod, a gear, a rack, two groups of third connecting rods and two groups of fourth connecting rods, the slide rail is mounted on the left side of the bottom end of the cover plate, the mounting seat is slidably connected to the slide rail, the micro electric push rod is mounted on the bottom end of the mounting seat, the top end of the second connecting rod is connected to the output end of the micro electric push rod, the gear is mounted on the left end of the worm, the rack is mounted on the bottom end of the second connecting rod, the rack is meshed with the gear, a slot is arranged on the upper side of the left end of the box body, the left end of the left third connecting rod of the two groups of third connecting rods is matched and clamped with the slot in the box body, the right end of the right third connecting rod passes through the left end of the inner tank and is connected to the left end of the piston, the right third connecting rod is slidably and sealingly connected to the inner tank, the top ends of the two groups of fourth connecting rods are respectively rotatably connected to the inner ends of the two groups of third connecting rods, and the bottom ends of the two groups of fourth connecting rods are both rotatably connected to the top ends of the racks.

[0009] Compared with the prior art, the beneficial effects of the utility model are as follows: when the valve plate is pneumatically controlled, air and oil are quantitatively introduced into the pneumatic device, and then the auxiliary device is opened. The pneumatic device and the auxiliary device cooperate to drive the worm to rotate, and the worm is engaged with the worm wheel, and the worm wheel drives the valve shaft on the valve plate to rotate, thereby controlling the valve plate. When the valve plate is manually controlled, the worm is driven to rotate by the manual device, and the worm is engaged with the worm wheel, and the worm wheel drives the valve shaft on the valve plate to rotate, thereby controlling the valve plate. By setting this device, when the valve plate is pneumatically controlled, the accuracy of the valve plate control can be improved with the assistance of the auxiliary device. When the valve plate is manually controlled, it can not only reduce costs more than electric control, be environmentally friendly and labor-saving, but also have the cost savings of pneumatics and more precise control. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a structural schematic diagram of the utility model;

[0011] Figure 2 yes Figure 1 A is a schematic diagram of the enlarged structure of the middle part;

[0012] Figure 3 yes Figure 1 Schematic diagram of the enlarged structure of B;

[0013] Markings in the attached drawings: 1. valve body; 2. valve plate; 3. box body; 4. perforation; 5. fixing bracket; 6. worm; 7. worm gear; 8. slide rod; 9. hand wheel; 10. first bolt; 11. rotating ring; 12. block; 13. limit block; 14. first connecting rod; 15. working chamber; 16. liner; 17. cover plate; 18. second bolt; 19. solenoid valve; 20. L-shaped plate; 21. collecting plate; 22. filter screen; 23. piston; 24. mounting bracket; 25. slide rail; 26. mounting seat; 27. micro electric push rod; 28. second connecting rod; 29. ​​gear; 30. rack; 31. third connecting rod; 32. fourth connecting rod. DETAILED DESCRIPTION

[0014] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0015] like Figures 1 to 3As shown, a worm gear clamp butterfly valve of the utility model comprises a valve body 1, a valve plate 2, a box body 3, two sets of fixing frames 5, a worm 6, a worm wheel 7, a manual device, a pneumatic device and an auxiliary device, the valve plate 2 is located inside the valve body 1, the box body 3 is installed at the top of the valve body 1, the bottom of the box body 3 is connected with a through hole 4, a valve shaft is provided on the valve plate 2, the valve shaft is rotatably installed in the through hole 4 of the box body 3, the two sets of fixing frames 5 are respectively installed in the box body 3, the worm 6 is rotatably installed on the two sets of fixing frames 5, the worm wheel 7 is installed at the top of the valve shaft of the valve plate 2, the worm wheel 7 is meshed with the worm 6, the manual device is installed on the right side of the box body 3, the manual device is connected to the right end of the worm 6, the pneumatic device is installed on the upper side of the box body 3, the auxiliary device is installed on the pneumatic device, the auxiliary device is matched with the box body 3, and the auxiliary device is matched with the left end of the worm 6;

[0016] When the valve plate 2 is pneumatically controlled, air and oil are quantitatively introduced into the pneumatic device, and then the auxiliary device is opened. The pneumatic device and the auxiliary device cooperate to drive the worm 6 to rotate, and the worm 6 is meshed with the worm gear 7, and the worm gear 7 drives the valve shaft on the valve plate 2 to rotate, thereby controlling the valve plate 2. When the valve plate 2 is manually controlled, the worm 6 is driven to rotate by the manual device, and the worm 6 is meshed with the worm gear 7, and the worm gear 7 drives the valve shaft on the valve plate 2 to rotate, thereby controlling the valve plate 2. By setting up this equipment, when the valve plate 2 is pneumatically controlled, the accuracy of controlling the valve plate 2 can be improved with the assistance of the auxiliary device. When the valve plate 2 is manually controlled, it can not only reduce costs more than electric control, be environmentally friendly and labor-saving, but also have the cost savings of pneumatics and more precise control.

[0017] The utility model discloses a worm gear clamp butterfly valve, the manual device comprises a slide bar 8, a hand wheel 9, a first bolt 10, a rotating ring 11, a clamping block 12, two groups of limit blocks 13 and a first connecting rod 14, the hand wheel 9 is mounted on the right end of the slide bar 8, the lower side of the right end of the box body 3 is connected with a mounting port, the rotating ring 11 is rotatably mounted at the mounting port of the box body 3, the slide bar 8 is slidably connected with the rotating ring 11, the right side of the front end of the rotating ring 11 is connected with a threaded hole, the first bolt 10 is threadedly connected with the threaded hole of the rotating ring 11, the first bolt 10 is tightened against the slide bar 8, the clamping block 12 is mounted on the left end of the slide bar 8, the two groups of limit blocks 13 are respectively mounted on the upper and lower parts of the right side of the first connecting rod 14, the two groups of limit blocks 13 are matched with the clamping block 12 for clamping, and the left end of the first connecting rod 14 is connected with the right end of the worm 6;

[0018] By arranging the slide bar 8, the hand wheel 9, the first bolt 10, the rotating ring 11, the clamping block 12, the limit block 13 and the first connecting rod 14, when the valve plate 2 is manually operated, the slide bar 8 is moved to the left through the rotating ring 11 by the hand wheel 9, and when the clamping block 12 is engaged with the two groups of limit blocks 13 on the first connecting rod 14, the first bolt 10 is rotated, and the first bolt 10 is threadedly connected with the rotating ring 11, and the rotating ring 11 tightens the slide bar 8, and then the slide bar 8 is rotated by the hand wheel 9, and the slide bar 8 drives the worm 6 to rotate through the clamping block 12, the two groups of limit blocks 13 and the first connecting rod 14, so as to manually operate the valve plate 2.

[0019] The utility model is a worm gear clamp butterfly valve, the pneumatic device includes an inner tank 16, a cover plate 17, two groups of second bolts 18, a solenoid valve 19, four groups of L-shaped plates 20, a collecting plate 21, a filter screen 22, a piston 23 and a mounting frame 24, the inner tank 16 is mounted on the bottom end of the cover plate 17 through the mounting frame 24, the cover plate 17 is fixed to the top of the box body 3 through the two groups of second bolts 18, the solenoid valve 19 is mounted on the upper side of the right end of the box body 3, the output end of the solenoid valve 19 is connected to the inner tank 16, and a working chamber is provided inside the inner tank 16 15, the left side of the top and bottom of the inner tank 16 are both connected to each other and are provided with exhaust ports, the exhaust port output end of the top of the inner tank 16 passes through the cover plate 17 and extends to the upper side of the cover plate 17, four groups of L-shaped plates 20 are symmetrically installed on the left side of the bottom of the inner tank 16, the collecting plate 21 is slidably connected to the four groups of L-shaped plates 20, the collecting plate 21 corresponds to the exhaust port position at the bottom of the inner tank 16, the filter screen 22 is installed at the exhaust port output end of the top of the inner tank 16, the piston 23 slides in the working chamber 15 of the inner tank 16, and the piston 23 is connected with the auxiliary device;

[0020] By setting the working chamber 15, the inner tank 16, the cover plate 17, the second bolt 18, the solenoid valve 19, the L-shaped plate 20, the collecting plate 21, the filter screen 22, the piston 23 and the mounting frame 24, the cover plate 17 is installed on the top of the box body 3, and then the two groups of second bolts 18 are used to fix the cover plate 17, and then the air and oil are introduced into the inner tank 16 under the flow control of the solenoid valve 19, and the air and oil push the piston 23 to slide to the left in the inner tank 16, and the piston 23 drives the auxiliary device to move and open the auxiliary device at the same time, and the auxiliary device drives the worm 6 to rotate. When the piston 23 moves to the left side of the two groups of exhaust ports of the inner tank 16, the air is discharged after being filtered by the filter screen 22 through the exhaust port at the top of the inner tank 16, and the oil falls into the collecting plate 21 through the exhaust port at the bottom of the inner tank 16 for collection, which plays a role in starting and controlling the valve plate 2.

[0021] The utility model discloses a worm gear clamp butterfly valve, the auxiliary device includes a slide rail 25, a mounting seat 26, a micro electric push rod 27, a second connecting rod 28, a gear 29, a rack 30, two sets of third connecting rods 31 and two sets of fourth connecting rods 32, the slide rail 25 is mounted on the left side of the bottom end of the cover plate 17, the mounting seat 26 is slidably connected to the slide rail 25, the micro electric push rod 27 is mounted on the bottom end of the mounting seat 26, the top of the second connecting rod 28 is connected to the output end of the micro electric push rod 27, the gear 29 is mounted on the left end of the worm 6, and the rack 30 is mounted on At the bottom end of the second connecting rod 28, the rack 30 is meshed with the gear 29, and a slot is provided on the upper side of the left end in the box body 3. The left end of the left third connecting rod 31 in the two sets of third connecting rods 31 is engaged with the slot in the box body 3, and the right end of the right third connecting rod 31 passes through the left end of the inner liner 16 and is connected to the left end of the piston 23. The right third connecting rod 31 is slidably and sealedly connected to the inner liner 16. The top ends of the two sets of fourth connecting rods 32 are respectively rotatably connected to the inner ends of the two sets of third connecting rods 31, and the bottom ends of the two sets of fourth connecting rods 32 are both rotatably connected to the top ends of the racks 30.

[0022] By arranging the slide rail 25, the mounting seat 26, the micro electric push rod 27, the second connecting rod 28, the gear 29, the rack 30, the third connecting rod 31 and the fourth connecting rod 32, when the piston 23 moves to the left, the third connecting rod 31 on the right side moves inward, and the third connecting rod 31 on the right side drives the rack 30 to move downward through the fourth connecting rod 32 on the right side, and the mounting seat 26 slides on the slide rail 25 and opens the micro electric push rod 27 at the same time, and the micro electric push rod 27 assists the rack 30 to move downward, and the rack 30 meshes with the gear 29, and the gear 29 drives the worm 6 to rotate, which can assist in driving the rack 30 to move, thereby improving the accuracy of the pneumatic control valve plate 2.

[0023] The utility model is a worm gear clamp butterfly valve, which, when working, firstly, when the pneumatic control valve plate 2 is passed, the cover plate 17 is installed on the top of the box body 3, and then the two groups of second bolts 18 are used to fix the cover plate 17, and the left third connecting rod 31 is clamped with the box body 3, and then the air and oil are introduced into the inner tank 16 under the flow control of the solenoid valve 19, and the air and oil push the piston 23 to slide to the left in the inner tank 16, and the piston 23 drives the right third connecting rod 31 to move to the left, and the right third connecting rod 31 drives the rack 30 to move downward through the right fourth connecting rod 32, and the mounting seat 26 slides on the slide rail 25, and at the same time, the micro electric push rod 27 is opened, and the micro electric push rod 27 assists the rack 30 to move downward, and the rack 30 is meshed with the gear 29, and the gear 29 drives the worm 6 to rotate, and the worm 6 is meshed with the worm wheel 7, and the worm wheel 7 drives the valve plate 2 The valve shaft rotates to control the valve plate 2. When the piston 23 moves to the left side of the two groups of exhaust ports of the inner tank 16, the air is discharged after being filtered through the filter screen 22 through the exhaust port at the top of the inner tank 16, and the oil falls into the collecting plate 21 through the exhaust port at the bottom of the inner tank 16 for collection. When the valve plate 2 is manually controlled, the slide rod 8 is moved to the left through the rotating ring 11 by the hand wheel 9. When the clamping block 12 is engaged with the two groups of limit blocks 13 on the first connecting rod 14, the first bolt 10 is rotated, and the first bolt 10 is threadedly connected with the rotating ring 11. The rotating ring 11 tightens the slide rod 8, and then the slide rod 8 is rotated by the hand wheel 9. The slide rod 8 drives the worm 6 to rotate through the clamping block 12, the two groups of limit blocks 13 and the first connecting rod 14. The worm 6 is meshed with the worm gear 7, and the worm gear 7 drives the valve shaft on the valve plate 2 to rotate, thereby controlling the valve plate 2.

[0024] The installation, connection or setting methods of the worm gear wafer butterfly valve of the utility model are all common mechanical methods, and any method that can achieve its beneficial effects can be implemented; the solenoid valve 19 and the micro electric push rod 27 of the worm gear wafer butterfly valve of the utility model are purchased on the market, and technicians in the industry only need to install and operate them according to the accompanying instruction manual.

[0025] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A worm gear wafer butterfly valve, characterized in that: The invention comprises a valve body (1), a valve plate (2), a housing (3), two sets of fixing frames (5), a worm (6), a worm gear (7), a manual device, a pneumatic device and an auxiliary device. The valve plate (2) is located inside the valve body (1). The housing (3) is mounted on the top of the valve body (1). The bottom of the housing (3) is connected to a through hole (4). A valve shaft is arranged on the valve plate (2). The valve shaft is rotatably mounted in the through hole (4) of the housing (3). The two sets of fixing frames (5) are respectively mounted in the housing (3). The worm (6) is rotatably mounted on the two sets of fixing frames (5). The worm gear (7) is mounted on the top of the valve shaft of the valve plate (2). The worm gear (7) is meshed with the worm (6). The manual device is mounted on the right side of the housing (3). The manual device is connected to the right end of the worm (6). The pneumatic device is mounted on the upper side of the housing (3). The auxiliary device is mounted on the pneumatic device. The auxiliary device is connected to the housing (3). The auxiliary device is connected to the left end of the worm (6).

2. A worm gear wafer butterfly valve as claimed in claim 1, characterized in that: The manual device comprises a slide bar (8), a hand wheel (9), a first bolt (10), a rotating ring (11), a clamping block (12), two groups of limit blocks (13) and a first connecting rod (14). The hand wheel (9) is mounted on the right end of the slide bar (8). A mounting opening is provided at the lower side of the right end of the box body (3). The rotating ring (11) is rotatably mounted at the mounting opening of the box body (3). The slide bar (8) is slidably connected with the rotating ring (11). A threaded hole is provided at the right side of the front end of the rotating ring (11). The first bolt (10) is threadedly connected with the threaded hole of the rotating ring (11). The first bolt (10) is tightened against the slide bar (8). The clamping block (12) is mounted on the left end of the slide bar (8). The two groups of limit blocks (13) are respectively mounted on the upper and lower parts of the right side of the first connecting rod (14). The two groups of limit blocks (13) are clamped together with the clamping block (12). The left end of the first connecting rod (14) is connected to the right end of the worm (6).

3. A worm gear wafer butterfly valve as claimed in claim 2, characterized in that: The pneumatic device comprises an inner liner (16), a cover plate (17), two groups of second bolts (18), a solenoid valve (19), four groups of L-shaped plates (20), a collecting plate (21), a filter screen (22), a piston (23) and a mounting frame (24). The inner liner (16) is mounted on the bottom end of the cover plate (17) through the mounting frame (24). The cover plate (17) is fixed to the top end of the box body (3) through the two groups of second bolts (18). The solenoid valve (19) is mounted on the upper right side of the box body (3). The output end of the solenoid valve (19) is connected to the inner liner (16). A working chamber (15) is arranged inside the inner liner (16). The left sides of the top and bottom of the inner container (16) are both connected and provided with exhaust ports. The exhaust port output end of the top of the inner container (16) passes through the cover plate (17) and extends to the upper side of the cover plate (17). Four groups of L-shaped plates (20) are symmetrically mounted on the left side of the bottom of the inner container (16). The collecting plate (21) is slidably connected to the four groups of L-shaped plates (20). The collecting plate (21) corresponds to the position of the exhaust port at the bottom of the inner container (16). The filter screen (22) is mounted on the exhaust port output end of the top of the inner container (16). The piston (23) slides in the working chamber (15) of the inner container (16). The piston (23) is cooperatively connected to the auxiliary device.

4. A worm gear wafer butterfly valve as claimed in claim 3, characterized in that: The auxiliary device comprises a slide rail (25), a mounting seat (26), a micro electric push rod (27), a second connecting rod (28), a gear (29), a rack (30), two sets of third connecting rods (31) and two sets of fourth connecting rods (32), wherein the slide rail (25) is mounted on the left side of the bottom end of the cover plate (17), the mounting seat (26) is slidably connected to the slide rail (25), the micro electric push rod (27) is mounted on the bottom end of the mounting seat (26), the top end of the second connecting rod (28) is connected to the output end of the micro electric push rod (27), the gear (29) is mounted on the left end of the worm (6), and the rack (30) is mounted on the second connecting rod (28) bottom end, the rack (30) is meshed with the gear (29), a slot is provided on the upper side of the left end inside the casing (3), the left end of the left third connecting rod (31) of the two sets of third connecting rods (31) is engaged with the slot inside the casing (3), the right end of the right third connecting rod (31) passes through the left end of the inner liner (16) and is connected to the left end of the piston (23), the right third connecting rod (31) is connected to the inner liner (16) in a sliding and sealing manner, the top ends of the two sets of fourth connecting rods (32) are respectively rotatably connected to the inner ends of the two sets of third connecting rods (31), and the bottom ends of the two sets of fourth connecting rods (32) are both rotatably connected to the top end of the rack (30).

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