Pin-free flange rubber lining butterfly valve

Abstract

The utility model relates to the technical field of butterfly valves, in particular to a pin-free flange rubber lining butterfly valve which comprises a butterfly valve shell, a round valve plate, a rubber lining sleeve and an electric cylinder, the rubber lining sleeve is sleeved with the butterfly valve shell, the round valve plate is arranged in the rubber lining sleeve, a sealing block is installed at a shaft hole in the top of the butterfly valve shell through a screw, and the electric cylinder is arranged in the butterfly valve shell. A sleeve seat is mounted at the top of the sealing block through a screw, a circular sleeve shell is arranged at the top of the sleeve seat, a shaft rod sleeve shell is arranged on one side of the circular sleeve shell, an electric cylinder is mounted at one end of the shaft rod sleeve shell through a mounting plate, and a control box is mounted at one end of the electric cylinder through a screw; an electric cylinder controller is mounted in the control box through a screw, and a remote control switch is mounted at one end of the electric cylinder controller through a screw; the pin-free flange rubber lining butterfly valve is convenient to remotely control the opening and closing of the valve, and is provided with the high-elasticity lining rubber sleeve, so that the sealing performance between the circular valve plate and the butterfly valve shell is improved, and leakage is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of butterfly valves, in particular to a pinless flange rubber-lined butterfly valve. Background Art

[0002] Pinless flange rubber lined butterfly valve refers to a butterfly valve with a pinless connection between the valve disc and the valve stem, which is connected by a flange. At the same time, the inner wall of the valve body is lined with a rubber layer, which reduces the friction and wear that may be caused by traditional pin connection and improves the stability and service life of the valve.

[0003] The existing pinless flange rubber-lined butterfly valve is not convenient for remotely controlling the opening and closing of the valve, does not have a highly elastic inner lining rubber sleeve, and cannot improve the sealing between the circular valve plate and the butterfly valve housing to prevent leakage. Utility Model Content

[0004] In response to the problems in the existing technology, the utility model provides a pinless flange rubber lined butterfly valve. The pinless flange rubber lined butterfly valve is convenient for remote control of the opening and closing of the valve. It has a highly elastic inner lining rubber sleeve to improve the sealing between the circular valve plate and the butterfly valve shell to prevent leakage.

[0005] The technical solution adopted by the utility model to solve its technical problems is a pinless flange rubber-lined butterfly valve, comprising a butterfly valve housing, a circular valve plate, an inner lining rubber sleeve and an electric cylinder, wherein the inner sleeve of the butterfly valve housing is provided with an inner lining rubber sleeve and a circular valve plate is provided in the inner lining rubber sleeve, a sealing block is installed at the top shaft hole of the butterfly valve housing by screws, a sleeve seat is installed on the top of the sealing block by screws and a circular sleeve shell is provided on the top of the sleeve seat, a shaft rod housing is provided on one side of the circular sleeve shell, an electric cylinder is installed on one end of the shaft rod housing by a mounting plate, a control box is installed on one end of the electric cylinder by screws, an electric cylinder controller is installed in the control box by screws and a remote control switch is installed on one end of the electric cylinder controller by screws;

[0006] The output of the electric cylinder is connected to a shaft and a rack is installed on one side of the shaft through a screw. A valve stem is sleeved through the sealing block and a gear is sleeved on the top of the valve stem. A hollow cavity is provided in the plate body of the circular valve plate and the hollow cavity is filled with polyurethane elastic particles.

[0007] By adopting the above technical solution, the pinless flange rubber lined butterfly valve is convenient for remote control of the opening and closing of the valve, and has a high-elasticity lining rubber sleeve to improve the sealing between the circular valve plate and the butterfly valve shell to prevent leakage.

[0008] Specifically, the shaft and the rack are both located in a shaft housing, the rack and the gear are meshed with each other, and a movable end is sleeved on one end of the shaft.

[0009] Specifically, the valve stem passes through the sleeve and the bottom end of the valve stem is connected to the circular valve plate through a mounting hole.

[0010] Specifically, the output end of the remote control switch and the electric cylinder controller is electrically connected to the input end of the electric cylinder via a wire.

[0011] By adopting the above technical solution, the output stroke of the electric cylinder can be easily controlled using the electric cylinder controller, a connection can be established with the remote control switch using a smart phone or PC, and the opening and closing of the electric cylinder can be remotely controlled using the smart phone or PC.

[0012] Specifically, flanges are welded to both ends of the butterfly valve housing and rubber sealing gaskets are bonded to the outer sides of the flanges.

[0013] Specifically, the inner surface of the lining rubber sleeve is provided with an anti-adhesion layer, and the anti-adhesion layer is specifically made of Teflon material.

[0014] By adopting the above technical solution, the anti-adhesion layer is made of Teflon material to prevent the adhesion of water flow dirt and impurities, which is easy to clean. The coating has high strength, is not easy to peel off, and is durable.

[0015] Beneficial effects of the utility model:

[0016] (1) The pinless flange rubber-lined butterfly valve described in the present invention utilizes flanges and matching bolts at both ends of the butterfly valve housing to facilitate pipe connection, utilizes rubber sealing gaskets with high elasticity and good adhesion to prevent leakage at the connecting pipe, utilizes an electric cylinder controller to facilitate control of the output stroke of the electric cylinder, so that the electric cylinder pushes the shaft to move, and the rack and gear engage with each other, thereby driving the valve stem to rotate, so that the circular valve plate in the butterfly valve housing rotates and opens, and uses a smartphone or PC to establish a connection with a remote control switch, and uses a smartphone or PC to remotely control the opening and closing of the electric cylinder, which has a high degree of intelligence.

[0017] (2) The pinless flange rubber-lined butterfly valve described in the present invention utilizes polyurethane elastic particles filled in the hollow cavity to greatly increase the elasticity and toughness of the inner lining rubber sleeve, thereby improving the sealing between the circular valve plate and the butterfly valve shell and preventing leakage. The anti-adhesion layer is specifically made of Teflon material to prevent the adhesion of water flow dirt and impurities, making it easy to clean, and the coating has high strength, is not easy to peel off, and is durable. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the internal structure of the circular housing and the shaft housing of the present invention;

[0021] Figure 3 This is a schematic diagram of the internal structure of the control box of the utility model;

[0022] Figure 4 This is a schematic diagram of the structure of the inner lining rubber sleeve material of the present utility model.

[0023] In the figure: 1. Flange; 2. Rubber sealing gasket; 3. Lined rubber sleeve; 4. Round valve plate; 5. Sleeve; 6. Round housing; 7. Electric cylinder; 8. Control box; 9. Shaft housing; 10. Movable end; 11. Sealing block; 12. Butterfly valve housing; 13. Shaft; 14. Rack; 15. Gear; 16. Valve stem; 17. Electric cylinder controller; 18. Remote control switch; 19. Anti-adhesion layer; 20. Hollow cavity; 21. Polyurethane elastic particles. DETAILED DESCRIPTION

[0024] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0025] In order to facilitate the remote control of the opening and closing of the valve, the pinless flange lined rubber butterfly valve has a high elastic lining rubber sleeve 3 to improve the sealing between the circular valve plate 4 and the butterfly valve shell 12 to prevent leakage. Figure 1-4 As shown, the pinless flange rubber lined butterfly valve described in the present invention includes a butterfly valve housing 12, a circular valve plate 4, an inner lining rubber sleeve 3 and an electric cylinder 7. The inner lining rubber sleeve 3 is provided in the butterfly valve housing 12 and the inner lining rubber sleeve 3 is provided with a circular valve plate 4. A sealing block 11 is installed at the top shaft hole of the butterfly valve housing 12 by screws, a sleeve 5 is installed on the top of the sealing block 11 by screws, and a circular sleeve 6 is provided on the top of the sleeve 5, a shaft housing 9 is provided on one side of the circular sleeve 6, an electric cylinder 7 is installed on one end of the shaft housing 9 through a mounting plate, a control box 8 is installed on one end of the electric cylinder 7 by screws, an electric cylinder controller 17 is installed in the control box 8 by screws, and a remote control switch 18 is installed on one end of the electric cylinder controller 17 by screws;

[0026] The output of the electric cylinder 7 is connected to a shaft 13 and a rack 14 is installed on one side of the shaft 13 by screws. A valve stem 16 is sleeved through the sealing block 11 and a gear 15 is sleeved on the top of the valve stem 16. A hollow cavity 20 is provided in the plate body of the circular valve plate 4 and the hollow cavity 20 is filled with polyurethane elastic particles 21.

[0027] When in use, the pinless flange rubber-lined butterfly valve facilitates remote control of the opening and closing of the valve. It has a highly elastic inner lining rubber sleeve 3, which improves the sealing between the circular valve plate 4 and the butterfly valve housing 12 to prevent leakage.

[0028] For example, Figure 1 、2 As shown, the present invention further includes that the shaft 13 and the rack 14 are both located in the shaft housing 9 , the rack 14 and the gear 15 are meshed with each other, and one end of the shaft 13 is sleeved with a movable end 10 .

[0029] When in use, the rack 14 and the gear 15 mesh with each other, thereby driving the valve stem 16 to rotate.

[0030] For example, Figure 1 、 2 As shown, the present invention further includes that the valve stem 16 passes through the sleeve 5 and the bottom end of the valve stem 16 is connected to the circular valve plate 4 through a mounting hole.

[0031] When in use, the valve stem 16 rotates to rotate and open the circular valve plate 4 in the butterfly valve housing 12 .

[0032] For example, Figure 1 、 3 As shown, the present invention further includes that the output end of the remote control switch 18 and the electric cylinder controller 17 are electrically connected to the input end of the electric cylinder 7 through a wire.

[0033] When in use, the electric cylinder controller 17 is used to control the output stroke of the electric cylinder 7, and a connection is established with the remote control switch 18 using a smart phone or PC, so that the opening and closing of the electric cylinder 7 can be remotely controlled using the smart phone or PC.

[0034] For example, Figure 1 As shown, the present invention further includes that flanges 1 are welded to both ends of the butterfly valve housing 12 and rubber sealing gaskets 2 are bonded to the outer sides of the flanges 1 .

[0035] When in use, the rubber sealing gasket 2 has high elasticity and good adhesion, which prevents leakage at the connecting pipe.

[0036] For example, Figure 4 As shown, the present invention further includes that the inner surface layer of the inner lining rubber sleeve 3 is provided with an anti-adhesion layer 19 and the anti-adhesion layer 19 is specifically made of Teflon material.

[0037] When in use, the anti-adhesion layer 19 is made of Teflon material to prevent the adhesion of water flow dirt and impurities, which is easy to clean. The coating has high strength, is not easy to peel off, and is durable.

[0038] When the utility model is in use, the flanges 1 at both ends of the butterfly valve housing 12 and the matching bolts are used to facilitate the connection of pipes, and the rubber sealing gasket 2 has high elasticity and good adhesion to prevent leakage at the pipe connection;

[0039] The electric cylinder controller 17 is used to easily control the output stroke of the electric cylinder 7, so that the electric cylinder 7 pushes the shaft 13 to move. Since the rack 14 and the gear 15 are engaged with each other, the valve stem 16 is driven to rotate, so that the circular valve plate 4 in the butterfly valve housing 12 rotates and opens. A connection is established with the remote control switch 18 via a smartphone or PC, and the opening and closing of the electric cylinder 7 can be remotely controlled via the smartphone or PC, which has a high degree of intelligence.

[0040] The polyurethane elastic particles 21 filled in the hollow cavity 20 greatly increase the elasticity and toughness of the lining rubber sleeve 3, improve the sealing between the circular valve plate 4 and the butterfly valve housing 12, and prevent leakage. The anti-adhesion layer 19 is made of Teflon material to prevent the adhesion of water flow dirt and impurities, making it easy to clean. The coating has high strength, is not easy to peel off, and is durable.

[0041] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A pinless flange rubber lined butterfly valve, characterized in that: The invention comprises a butterfly valve housing (12), a circular valve plate (4), an inner lining rubber sleeve (3) and an electric cylinder (7); the inner lining rubber sleeve (3) is provided in the butterfly valve housing (12), and the inner lining rubber sleeve (3) is provided with a circular valve plate (4); a sealing block (11) is installed at the top shaft hole of the butterfly valve housing (12) by screws; a sleeve (5) is installed on the top of the sealing block (11) by screws, and a circular sleeve (6) is provided on the top of the sleeve (5); a shaft sleeve (9) is provided on one side of the circular sleeve (6); an electric cylinder (7) is installed on one end of the shaft sleeve (9) by a mounting plate; a control box (8) is installed on one end of the electric cylinder (7) by screws; an electric cylinder controller (17) is installed in the control box (8) by screws, and a remote control switch (18) is installed on one end of the electric cylinder controller (17) by screws; The output of the electric cylinder (7) is connected to a shaft (13) and a rack (14) is installed on one side of the shaft (13) by means of screws. A valve stem (16) is sleeved through the sealing block (11) and a gear (15) is sleeved on the top end of the valve stem (16). A hollow cavity (20) is provided in the plate body of the circular valve plate (4) and the hollow cavity (20) is filled with polyurethane elastic particles (21).

2. A pinless flange rubber lined butterfly valve according to claim 1, characterized in that: The shaft (13) and the rack (14) are both located in the shaft housing (9), the rack (14) and the gear (15) are meshed with each other, and one end of the shaft (13) is sleeved with a movable end (10).

3. The pinless flange rubber lined butterfly valve according to claim 1 is characterized in that: The valve stem (16) passes through the sleeve (5) and the bottom end of the valve stem (16) is connected to the circular valve plate (4) through a mounting hole.

4. The pinless flange rubber lined butterfly valve according to claim 1, characterized in that: The output ends of the remote control switch (18) and the electric cylinder controller (17) are electrically connected to the input end of the electric cylinder (7) via a wire.

5. The pinless flange rubber lined butterfly valve according to claim 1, characterized in that: Flanges (1) are welded to both ends of the butterfly valve housing (12), and rubber sealing gaskets (2) are bonded to the outer sides of the flanges (1).

6. The pinless flange rubber lined butterfly valve according to claim 1, characterized in that: The inner surface layer of the lining rubber sleeve (3) is provided with an anti-adhesion layer (19), and the anti-adhesion layer (19) is specifically made of Teflon material.

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