Double-sealing flange type electric butterfly valve

Abstract

The utility model relates to the technical field of electric butterfly valves, and discloses a double-seal flange type electric butterfly valve which comprises a valve port, a connecting shell is fixedly connected to the outer wall of the upper end of the valve port, a control valve is fixedly connected to the outer wall of the upper end of the connecting shell, a rotating rod is fixedly connected to the inner wall of the valve port, and the rotating rod is fixedly connected to the outer wall of the upper end of the connecting shell. The outer wall of the rotating rod is sleeved with a sleeve shell, the outer wall of the sleeve shell is fixedly connected with a valve plate, and a sealing assembly is arranged in the valve port. According to the double-sealing flange type electric butterfly valve, a transmission rod is driven by a motor to rotate, the transmission rod rotates, a sleeve shell drives a valve plate to rotate, at the moment, a transmission bevel gear moves on a driving bevel gear to make the transmission bevel gear rotate, and therefore the transmission bevel gear drives a rotating disc to rotate; at the moment, the protruding block is driven by the rotating disc to rotate to make contact with the push plate and can make the push plate move, so that the clamping plate extends out to further seal the valve port, and the sealing effect of double sealing of the butterfly valve is better.

Description

TECHNICAL FIELD

[0001] The utility model relates to electric butterfly valve technical field, concretely is a kind of double sealing flange type electric butterfly valve. BACKGROUND

[0002] Electric butterfly valve as important execution unit in industrial automation control field, has wide application in textile, power station, petrochemical industry, heating refrigeration, pharmacy, shipbuilding, metallurgy, light industry, environmental protection and so on.

[0003] According to the double sealing flange type electric butterfly valve (announcement number: CN214617896U) of publicizing, when the half valve plate needs to be installed in the above-mentioned application, two half valve plates are attached at the end of rotating shaft, rubber sheet is clamped between two half valve plates, sealing effect is achieved, and the tightness of connection is also ensured, then connecting screw is tightened to make the connection between half valve plates tight, finally mounting bolt is tightened, to form firm installation relationship between half valve plate and rotating shaft, realize the function of easy installation, disassembly and replacement of valve plate, solve the problem that the device does not have the function of easy installation, disassembly and replacement of valve plate.

[0004] But the sealing degree of the above-mentioned equipment is not enough in actual use process, only relying on sealing ring to seal valve port, after long time use of butterfly valve, gap may be generated between valve plate, so that water flow may overflow, resulting in valve failure, in view of this, we propose a double sealing flange type electric butterfly valve. SUMMARY

[0005] The utility model aims at providing a kind of double sealing flange type electric butterfly valve, to solve the problem raised in the above background art.

[0006] To achieve the above object, the utility model provides the following technical scheme: a kind of double sealing flange type electric butterfly valve, including valve port, the upper end outer wall of the valve port is fixedly connected with connecting shell, the upper end outer wall of the connecting shell is fixedly connected with control valve, the inner wall of the valve port is fixedly connected with rotating rod, the outer wall of the rotating rod is sleeved with sleeve shell, the outer wall of the sleeve shell is fixedly connected with valve plate, the inside of the valve port is provided with sealing assembly, the sealing assembly includes:

[0007] Motor, the output end of the motor is fixedly connected with transmission rod, the lower end inner wall of the transmission rod is rotatably connected with rotating rod, the outer wall of the rotating rod is fixedly connected with driving bevel gear, the outer wall of the driving bevel gear is engaged with transmission bevel gear;

[0008] Rotating disc, the rotating disc is fixedly connected with the axle of transmission bevel gear, the outer wall of the rotating disc is fixedly connected with lug, the inner wall of the valve plate is slidably connected with push plate, the end of the push plate away from the rotating disc is fixedly connected with clamping plate, the outer wall of the clamping plate is fixedly connected with spring.

[0009] Preferably, the inside of the valve plate is provided with a fixing assembly, the inner wall of the valve port is provided with a clamping groove, the inner wall of the clamping groove is fixedly connected with a limiting block, and the inner wall of the clamping groove and the outer wall of the valve plate are both fixedly connected with a friction pad, so that when the clamping plate is pushed out by the protruding block and extends, the clamping plate can be clamped with the clamping groove, and the friction pad can fill the gap between the clamping plate and the clamping groove.

[0010] Preferably, the lower end of the transmission rod is fixedly connected with the sleeve, the transmission bevel gear is rotatably connected with the inner wall of the sleeve, and the rotating disc is rotatably connected with the inner wall of the valve plate, so that when the sleeve is driven by the motor to move the transmission bevel gear on the driving bevel gear, the transmission bevel gear rotates to drive the rotating disc to rotate, thereby enabling the protruding block to push the push plate to move.

[0011] Preferably, the clamping plate penetrates through the valve plate and is slidably connected with the inner wall of the valve plate, the clamping plate is clamped with the inner wall of the clamping groove, and the distance between the limiting blocks is consistent with the length of the clamping plate, so that when the clamping plate is pushed out, the gap between the clamping plates in the clamping groove can be filled.

[0012] Preferably, the protruding block is in contact with the push plate, one end of the push plate close to the protruding block is provided with a curved surface, and the other end of the spring away from the clamping plate is fixedly connected with the inner wall of the valve plate, so that the rotating disc is rotated to drive the protruding block to easily lift the push plate, thereby enabling the clamping plate to extend out of the valve plate.

[0013] Preferably, the area of the valve plate is consistent with the opening area of the valve port, and the edge of the valve plate is provided with a sealing strip, and the edge of the valve plate is in contact with the inner wall of the valve port, so that the valve plate can more completely block the valve port.

[0014] Compared with the prior art, the double-sealing flange type electric butterfly valve has the following beneficial effects:

[0015] 1. The double-sealing flange type electric butterfly valve, the motor drives the transmission rod to rotate, the transmission rod drives the valve plate to rotate through the sleeve, at this time the transmission bevel gear moves on the driving bevel gear to make the transmission bevel gear rotate, thereby enabling the transmission bevel gear to drive the rotating disc to rotate, at this time the protruding block rotates to contact the push plate to make the push plate move, thereby enabling the clamping plate to extend out to further seal the valve port, and the sealing effect of the butterfly valve is better.

[0016] 2. The double-sealing flange type electric butterfly valve, when the clamping plate is pushed out by the protruding block and extends, the clamping plate can be clamped with the clamping groove, and the friction pad can fill the gap between the clamping plate and the clamping groove, thereby sealing the clamping plate and the clamping groove, and further improving the sealing effect of the butterfly valve. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a schematic view of the main body structure of the utility model.

[0018] Figure 2 It is the valve port section structure schematic diagram of the utility model;

[0019] Figure 3 It is the transmission rod section structure schematic diagram of the utility model;

[0020] Figure 4 It is the valve plate section structure schematic diagram of the utility model;

[0021] Figure 5 It is the valve port structure schematic diagram of the utility model.

[0022] In the drawing: 1, valve port;2, connecting shell;3, control valve;4, rotating rod;5, cover shell;6, valve plate;7, sealing assembly;71, motor;72, transmission rod;73, driving bevel gear;74, transmission bevel gear;75, rotating disc;76, protruding block;77, push plate;78, clamping plate;79, spring;8, fixing assembly;81, clamping groove;82, limiting block;83, friction pad. DETAILED DESCRIPTION

[0023] As Figures 1-5 Indicated, the utility model provides a kind of technical scheme: a double-sealing flange type electric butterfly valve, including valve port 1, the upper end outer wall of valve port 1 is fixedly connected with connecting shell 2, the upper end outer wall of connecting shell 2 is fixedly connected with control valve 3, the inner wall of valve port 1 is fixedly connected with rotating rod 4, the outer wall of rotating rod 4 is sleeved with cover shell 5, the outer wall of cover shell 5 is fixedly connected with valve plate 6, the inside of valve port 1 is provided with sealing assembly 7, and sealing assembly 7 includes motor 71, transmission rod 72, driving bevel gear 73, transmission bevel gear 74, rotating disc 75, protruding block 76, push plate 77, clamping plate 78, spring 79.

[0024] In an embodiment of the utility model, motor 71 is fixedly connected on the inner wall of cover shell 5, the output end of motor 71 is fixedly connected with transmission rod 72, the lower end inner wall of transmission rod 72 is rotatably connected with rotating rod 4, the outer wall of rotating rod 4 is fixedly connected with driving bevel gear 73, and the outer wall of driving bevel gear 73 is engaged with transmission bevel gear 74.

[0025] In an embodiment of the utility model, rotating disc 75 is fixedly connected at the axis of transmission bevel gear 74, the outer wall of rotating disc 75 is fixedly connected with protruding block 76, the inner wall of valve plate 6 is slidably connected with push plate 77, the end of push plate 77 away from rotating disc 75 is fixedly connected with clamping plate 78, and the outer wall of clamping plate 78 is fixedly connected with spring 79.

[0026] In addition, the inside of the valve plate 6 is provided with a fixing assembly 8, the fixing assembly 8 comprises a clamping groove 81, the inner wall of the valve port 1 is provided with the clamping groove 81, the inner wall of the clamping groove 81 is fixedly connected with a limiting block 82, the inner wall of the clamping groove 81 and the outer wall of the valve plate 6 are fixedly connected with a friction pad 83, so that when the clamping plate 78 is pushed out and stretched out by the protruding block 76, the clamping plate 78 can be clamped with the clamping groove 81, and the friction pad 83 can fill the gap between the clamping plate 78 and the clamping groove 81, so that the clamping plate 78 and the clamping groove 81 are sealed, and the sealing effect of the butterfly valve is improved.

[0027] In the embodiment of the utility model, the lower end outer wall of transmission rod 72 is fixedly connected with sleeve 5, transmission bevel gear 74 is rotatably connected with the inner wall of sleeve 5, and rotary disc 75 is rotatably connected with the inner wall of valve plate 6, when sleeve 5 is driven by motor 71 to make transmission bevel gear 74 move on driving bevel gear 73, transmission bevel gear 74 rotates, transmission bevel gear 74 drives rotary disc 75 to rotate, thereby protruding block 76 can push push plate 77 to move, thereby clamping plate 78 stretches out and further seals valve port 1.

[0028] In the embodiment of the utility model, clamping plate 78 penetrates valve plate 6, and clamping plate 78 is slidably connected with the inner wall of valve plate 6, clamping plate 78 is clamped with the inner wall of clamping groove 81, the distance between limiting block 82 is consistent with the length of clamping plate 78, when clamping plate 78 is pushed out, the gap between clamping plate 78 in clamping groove 81 can be filled, and the sealing effect of valve plate 6 is better.

[0029] In the embodiment of the utility model, protruding block 76 contacts push plate 77, one end of push plate 77 close to protruding block 76 is provided with an arc surface, one end of spring 79 away from clamping plate 78 is fixedly connected with the inner wall of valve plate 6, rotary disc 75 drives protruding block 76 to make protruding block 76 easily lift push plate 77, thereby clamping plate 78 can stretch out from valve plate 6, and valve plate 6 can be sealed.

[0030] In the embodiment of the utility model, the area of valve plate 6 is consistent with the opening area of valve port 1, and the edge of valve plate 6 is provided with a sealing strip, the edge of valve plate 6 contacts the inner wall of valve port 1, so that valve plate 6 can completely block valve port 1 and seal valve port 1.

[0031] In the utility model, when using, the transmission rod 72 is driven to rotate through the motor 71, the transmission rod 72 drives the valve plate 6 to rotate through the sleeve 5, the transmission bevel gear 74 rotates on the driving bevel gear 73 at this moment, the transmission bevel gear 74 rotates, the knob 76 rotates to contact the push plate 77 and makes the push plate 77 move, the clamping plate 78 extends and further seals the valve port 1, the sealing effect of the butterfly valve is better, when the clamping plate 78 is pushed out and extends, the clamping plate 78 can be clamped with the clamping groove 81, and the friction pad 83 can fill the gap between the clamping plate 78 and the clamping groove 81, so that the clamping plate 78 and the clamping groove 81 are sealed, and the sealing effect of the butterfly valve is further improved.

[0032] The utility model has been described in detail above, but some modifications or improvements can be made on the basis of the utility model, which is obvious to the general technical personnel in the technical field. Therefore, the modifications or improvements without departing from the utility model's ideological spirit are within the scope of the utility model.

Claims

1. A double-sealed flange type electric butterfly valve, comprising a valve port (1), wherein a connecting shell (2) is fixedly connected to the upper outer wall of the valve port (1), a control valve (3) is fixedly connected to the upper outer wall of the connecting shell (2), a rotating rod (4) is fixedly connected to the inner wall of the valve port (1), a sleeve (5) is sleeved on the outer wall of the rotating rod (4), and a valve plate (6) is fixedly connected to the outer wall of the sleeve (5), characterized in that: The valve port (1) is internally provided with a sealing assembly (7), which comprises: The motor (71) is fixedly connected to the inner wall of the sleeve (5), and the output end of the motor (71) is fixedly connected with a transmission rod (72), the lower end of the transmission rod (72) is rotatably connected with the rotating rod (4), the outer wall of the rotating rod (4) is fixedly connected with a driving bevel gear (73), and the outer wall of the driving bevel gear (73) is engaged with a transmission bevel gear (74). The rotating disc (75) is fixedly connected to the shaft of the transmission bevel gear (74), the outer wall of the rotating disc (75) is fixedly connected with a protruding block (76), the inner wall of the valve plate (6) is slidably connected with a push plate (77), the end of the push plate (77) away from the rotating disc (75) is fixedly connected with a clamping plate (78), and the outer wall of the clamping plate (78) is fixedly connected with a spring (79).

2. A double-seal flanged electric butterfly valve according to claim 1, characterized in that: The inner wall of the valve plate (6) is provided with a fixing assembly (8), the fixing assembly (8) comprises a clamping groove (81), the inner wall of the valve port (1) is provided with a clamping groove (81), the inner wall of the clamping groove (81) is fixedly connected with a limiting block (82), and the inner wall of the clamping groove (81) and the outer wall of the valve plate (6) are both fixedly connected with a friction pad (83).

3. A double-seal flanged electric butterfly valve according to claim 1, characterized in that: The lower end of the transmission rod (72) is fixedly connected with the sleeve (5), the transmission bevel gear (74) is rotatably connected with the inner wall of the sleeve (5), and the rotating disc (75) is rotatably connected with the inner wall of the valve plate (6).

4. A double-seal flanged electric butterfly valve according to claim 2, characterized in that: The clamping plate (78) penetrates the valve plate (6), and the clamping plate (78) is slidably connected with the inner wall of the valve plate (6), the clamping plate (78) is connected with the inner wall of the clamping groove (81), and the distance between the limiting blocks (82) is consistent with the length of the clamping plate (78).

5. A double-seal flanged electric butterfly valve according to claim 1, characterized in that: The protruding block (76) is in contact with the push plate (77), one end of the push plate (77) close to the protruding block (76) is provided with a curved surface, and the end of the spring (79) away from the clamping plate (78) is fixedly connected with the inner wall of the valve plate (6).

6. A double-seal flanged electric butterfly valve according to claim 1, characterized in that: The area of the valve plate (6) is consistent with the opening area of the valve port (1), and the edge of the valve plate (6) is provided with a sealing strip, and the edge of the valve plate (6) is in contact with the inner wall of the valve port (1).

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