An electrically controlled valve

Abstract

The present invention discloses an electric control valve, which relates to the field of control valves and includes a valve body opening and closing mechanism. The valve body opening and closing mechanism includes a valve body, on which a right outlet and a left outlet are fixedly installed. A bidirectional electric cylinder is fixedly installed on the valve body. The left telescopic end of the bidirectional electric cylinder is fixedly installed with a left rack. A rotating plate is rotatably installed on the valve body, and a left gear is fixedly installed on the rotating plate. The left gear and the left rack form a gear-rack cooperation. By the elongation of the telescopic end of the bidirectional electric cylinder, the left rack is driven to move. The movement of the left rack drives the left gear to rotate, and the rotation of the left gear drives the rotating plate to rotate, thereby controlling the opening or closing of the input end of the valve body. The valve of the present invention is provided with two outlets, which can meet the requirements of various valve application occasions. At the same time, the valve can freely control the opening and closing and the selection of the outlet.

Description

Technical Field

[0001] The present invention relates to the field of control valves, and particularly to an electric control valve. Background Art

[0002] A valve is a common pipeline component for controlling the flow of liquid. Existing electric control valves can usually only be used in pipelines with relatively low pressure-bearing capacity, and their application scope is limited. Using them in high-pressure pipelines is prone to risks.

[0003] Chinese Utility Model Patent with Publication No. CN218377772U discloses an electric control valve for opening and closing an air compressor storage tank. One end of the valve port of the valve pipe is provided with a pressure inlet, and the other end of the valve port of the valve pipe is provided with a pressure outlet. A valve core mechanism is connected through the valve cavity of the valve pipe. A valve core is arranged in the middle of the shaft rod of the output shaft between two seal ring seats. The structure adopted by this utility model increases the pressure-bearing capacity of the valve body, making it safer and more reliable during use. However, the valve only has one outlet, which cannot meet the requirements of various occasions. At the same time, the valve cannot freely control the opening and closing and the selection of the outlet. Summary of the Invention

[0004] To solve the above technical problems, the technical solution adopted by the present invention is: an electric control valve, including a valve body opening and closing mechanism and a passage switching mechanism, and the passage switching mechanism is installed on the valve body opening and closing mechanism.

[0005] The valve body opening and closing mechanism includes a valve body, on which a right outlet and a left outlet are fixedly installed. A bidirectional electric cylinder is fixedly installed on the valve body. A left rack is fixedly installed at the left telescopic end of the bidirectional electric cylinder. A rotating plate is rotatably installed on the valve body, and a left gear is fixedly installed on the rotating plate. The left gear and the left rack form a gear-rack cooperation.

[0006] The passage switching mechanism includes a right rack fixedly installed at the right telescopic end of the bidirectional electric cylinder. A right gear is rotatably installed on the valve body. A sliding bar is fixedly installed on the valve body. A water blocking piece is slidably installed on the sliding bar. A sliding rack is fixedly installed on the water blocking piece. The sliding rack and the right gear form a gear-rack cooperation. A switching partition is fixedly installed on the water blocking piece.

[0007] Furthermore, a discharge plate is fixedly installed on the valve body. A push plate is slidably installed on the discharge plate. An inner spring is fixedly installed on the push plate and is connected to the discharge plate.

[0008] Furthermore, the control valve further includes a linkage flow measurement mechanism. The linkage flow measurement mechanism includes a lifting plate slidably installed on the valve body. A folding rod is slidably installed on the valve body. The folding rod forms a cooperation with the water blocking piece. A starting spring is fixedly installed on the folding rod and is connected to the valve body. The folding rod forms a cooperation with the lifting plate. An upper spring is fixedly installed on the lifting plate and is fixedly connected to the valve body. A flow meter is fixedly installed on the lifting plate.

[0009] Furthermore, linkage flow measurement mechanisms are arranged on both the right outlet and the left outlet.

[0010] Furthermore, the control valve further includes a power generation mechanism. The power generation mechanism includes a power generation shaft rotatably installed on the valve body. An impeller is fixedly installed on the power generation shaft, and an input bevel gear is fixedly installed on the power generation shaft. A generator is fixedly installed on the valve body. An output bevel gear is fixedly installed on the input rod of the generator, and the output bevel gear forms a gear engagement with the input bevel gear.

[0011] Furthermore, a cable is installed on the generator, and the cable is connected to the bidirectional electric cylinder.

[0012] Furthermore, the control valve further includes an overspeed protection mechanism. The overspeed protection mechanism includes a centrifugal disc fixedly installed on the power generation shaft. A sliding groove is provided on the centrifugal disc. A sliding rod is installed on the sliding groove of the centrifugal disc, and the sliding rod is slidably installed on the centrifugal disc. A centrifugal wheel is fixedly installed on the sliding rod, and a tension spring is fixedly installed on the sliding rod. The tension spring is fixedly connected to the centrifugal disc, and a sensor is fixedly installed on the centrifugal disc.

[0013] Furthermore, the sensor is electrically connected to the bidirectional electric cylinder.

[0014] The beneficial effects of the present invention compared with the prior art are as follows: (1) The present invention is provided with two outlets, which can meet the requirements of various valve application occasions. At the same time, the valve can freely control the opening and closing and the selection of the outlet; (2) The present invention is provided with a linkage flow measurement mechanism. Only the ammeter is used to measure the flow rate at the valve outlet where water flows through, reducing energy waste; (3) The present invention is provided with a power generation mechanism, which converts the kinetic energy of the flowing water into electrical energy for storage and gives it to the valve body itself for use, increasing the energy utilization rate; (4) The present invention is provided with an overspeed protection mechanism to prevent the valve body from being damaged due to excessive water flow and extend the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0016] Figure 2 It is a schematic diagram of the valve body opening and closing mechanism of the present invention.

[0017] Figure 3 It is a partial schematic diagram of the valve body opening and closing mechanism of the present invention.

[0018] Figure 4 It is a schematic diagram of the path switching mechanism of the present invention.

[0019] Figure 5 It is Figure 4 a partial enlarged schematic diagram at A in

[0020] Figure 6 Schematic diagram of the power generation mechanism of the present invention.

[0021] Figure 7 is Figure 6 Partially enlarged schematic diagram at position B in

[0022] Reference numerals in the drawings: 1 - valve body; 2 - right outlet; 3 - left outlet; 4 - double-acting cylinder; 5 - left rack; 6 - left gear; 7 - rotating plate; 8 - push plate; 9 - discharge plate; 10 - inner spring; 11 - right rack; 12 - right gear; 13 - sliding rack; 14 - water baffle; 15 - switching partition; 16 - sliding bar; 17 - lifting plate; 18 - folding rod; 19 - starting spring; 20 - upper spring; 21 - flowmeter; 22 - impeller; 23 - power generation shaft; 24 - input bevel gear; 25 - output bevel gear; 26 - generator; 27 - centrifugal disc; 28 - centrifugal wheel; 29 - sliding rod; 30 - tension spring; 31 - sensor; 32 - cable. Specific implementation manner

[0023] The technical solution of the present invention will be further described below with reference to the accompanying drawings and through specific implementation manners.

[0024] Embodiment: An electric control valve includes a valve body opening and closing mechanism and a passage switching mechanism, and the passage switching mechanism is installed on the valve body opening and closing mechanism.

[0025] The valve body opening and closing mechanism includes a valve body 1, on which a right outlet 2 and a left outlet 3 are fixedly installed, a double-acting cylinder 4 is fixedly installed on the valve body 1, a left rack 5 is fixedly installed at the left telescopic end of the double-acting cylinder 4, a rotating plate 7 is rotatably installed on the valve body 1, a left gear 6 is fixedly installed on the rotating plate 7, and the left gear 6 and the left rack 5 form a gear-rack cooperation; when the telescopic end of the double-acting cylinder 4 extends, the left rack 5 moves, the left rack 5 drives the left gear 6 to rotate, and the left gear 6 drives the rotating plate 7 to rotate, so as to control the opening or closing of the input end of the valve body 1.

[0026] The passage switching mechanism includes a right rack 11, which is fixedly installed at the right telescopic end of the bidirectional electric cylinder 4. A right gear 12 is rotatably installed on the valve body 1. A sliding strip 16 is fixedly installed on the valve body 1. A water blocking plate 14 is slidably installed on the sliding strip 16. A sliding rack 13 is fixedly installed on the water blocking plate 14. The sliding rack 13 and the right gear 12 form a gear-rack fit. A switching partition 15 is fixedly installed on the water blocking plate 14. When the right telescopic end of the bidirectional electric cylinder 4 extends, it drives the right rack 11 to move. The right rack 11 drives the right gear 12 to rotate. The right gear 12 drives the sliding rack 13 to slide. The sliding rack 13 drives the water blocking plate 14 to move. The water blocking plate 14 drives the switching partition 15 to slide. The switching partition 15 blocks the right outlet 2 or the left outlet 3, realizing the switching of the two valve body outlets. When the switching partition 15 moves to the outlet of the right outlet 2, the water blocking plate 14 will block the opening on the upper surface of the valve body 1 to prevent leakage from the upper end.

[0027] A discharge plate 9 is fixedly installed on the valve body 1. A push plate 8 is slidably installed on the discharge plate 9. An inner spring 10 is fixedly installed on the push plate 8. The inner spring 10 is connected to the discharge plate 9. The rotating plate 7 rotates to push the push plate 8 and compresses the inner spring 10. After compression, water can pass through the valve body. At the same time, a short convex plate is provided on the side of the rotating plate 7. When the valve body is closed, the short convex plate supports the push plate 8, and the water flow cannot push the push plate 8 open.

[0028] The control valve further includes a linkage flow measurement mechanism. The linkage flow measurement mechanism includes a lifting plate 17, which is slidably installed on the valve body 1. A folding rod 18 is slidably installed on the valve body 1. The folding rod 18 forms a fit with the water blocking plate 14. A starting spring 19 is fixedly installed on the folding rod 18. The starting spring 19 is connected to the valve body 1. The folding rod 18 forms a fit with the lifting plate 17. An upper spring 20 is fixedly installed on the lifting plate 17. The upper spring 20 is fixedly connected to the valve body 1. A flowmeter 21 is fixedly installed on the lifting plate 17. When the water blocking plate 14 moves horizontally, the water blocking plate 14 pushes the folding rod 18 to slide. The folding rod 18 slides to compress the starting spring 19 and pushes the lifting plate 17 to lift upward. The flowmeter 21 below the lifting plate 17 also rises simultaneously. When the switching partition 15 blocks the outlet of the right outlet 2, there is no water flow at the right outlet 2 at this time. Therefore, the lifting plate 17 and the flowmeter 21 are lifted by the folding rod 18, and only the unblocked liquid outlet is measured for flow.

[0029] Linkage flow measurement mechanisms are arranged on both the right outlet 2 and the left outlet 3.

[0030] The control valve further includes a power generation mechanism. The power generation mechanism includes a power generation shaft 23, which is rotatably installed on the valve body 1. An impeller 22 is fixedly installed on the power generation shaft 23, and an input bevel gear 24 is fixedly installed on the power generation shaft 23. A generator 26 is fixedly installed on the valve body 1, and an output bevel gear 25 is fixedly installed on the input rod of the generator 26. The output bevel gear 25 forms a gear engagement with the input bevel gear 24. Water flow impacts the impeller 22, the rotation of the impeller 22 drives the rotation of the power generation shaft 23, the power generation shaft 23 drives the rotation of the input bevel gear 24, the input bevel gear 24 drives the rotation of the output bevel gear 25, and the output bevel gear 25 drives the rotation of the input shaft of the generator 26 to generate electricity, collecting the energy of the water flow passing through.

[0031] A cable 32 is installed on the generator 26, and the cable 32 is connected to the double-acting cylinder 4. The electric energy stored in the generator 26 is transmitted to the double-acting cylinder 4 through the cable 32 to control the operation of the double-acting cylinder 4.

[0032] The control valve further includes an overspeed protection mechanism. The overspeed protection mechanism includes a centrifugal disc 27, which is fixedly installed on the power generation shaft 23. A chute is provided on the centrifugal disc 27, and a sliding rod 29 is installed on the chute of the centrifugal disc 27. The sliding rod 29 is slidably installed on the centrifugal disc 27. A centrifugal wheel 28 is fixedly installed on the sliding rod 29, a tension spring 30 is fixedly installed on the sliding rod 29, the tension spring 30 is fixedly connected to the centrifugal disc 27, and a sensor 31 is fixedly installed on the centrifugal disc 27. The rotation of the power generation shaft 23 drives the rotation of the centrifugal disc 27. When the centrifugal disc 27 rotates, due to the centrifugal force, the centrifugal wheel 28 tends to move outward and controls the movement of the sliding rod 29, while stretching the tension spring 30. When the speed is too high, the centrifugal wheel 28 will contact the sensor 31, and the sensor 31 will generate an electrical signal.

[0033] The sensor 31 is electrically connected to the double-acting cylinder 4. The signal generated by the sensor 31 is transmitted to the double-acting cylinder 4 to control the double-acting cylinder 4 to close and prevent the valve from being damaged.

Claims

1. An electric control valve, comprising a valve body opening and closing mechanism and a passage switching mechanism. The passage switching mechanism is installed on the valve body opening and closing mechanism, and is characterized in that: The valve body opening and closing mechanism includes a valve body (1), on which a right outlet (2) and a left outlet (3) are fixedly installed. A double-acting cylinder (4) is fixedly installed on the valve body (1). A left rack (5) is fixedly installed at the left telescopic end of the double-acting cylinder (4). A rotating plate (7) is rotatably installed on the valve body (1). A left gear (6) is fixedly installed on the rotating plate (7). The left gear (6) and the left rack (5) form a gear-rack engagement. The passage switching mechanism includes a right rack (11), which is fixedly installed at the right telescopic end of the double-acting cylinder (4). A right gear (12) is rotatably installed on the valve body (1). A sliding bar (16) is fixedly installed on the valve body (1). A water baffle (14) is slidably installed on the sliding bar (16). A sliding rack (13) is fixedly installed on the water baffle (14). The sliding rack (13) and the right gear (12) form a gear-rack engagement. A switching partition (15) is fixedly installed on the water baffle (14). The control valve further includes a linkage flow measurement mechanism, which includes a lifting plate (17). The lifting plate (17) is slidably installed on the valve body (1). A folding rod (18) is slidably installed on the valve body (1). The folding rod (18) and the water baffle (14) form a cooperation. A starting spring (19) is fixedly installed on the folding rod (18). The starting spring (19) is connected to the valve body (1). The folding rod (18) and the lifting plate (17) form a cooperation. An upper spring (20) is fixedly installed on the lifting plate (17). The upper spring (20) is fixedly connected to the valve body (1). A flowmeter (21) is fixedly installed on the lifting plate (17). The control valve further includes a power generation mechanism, which includes a power generation shaft (23). The power generation shaft (23) is rotatably installed on the valve body (1). An impeller (22) is fixedly installed on the power generation shaft (23). An input bevel gear (24) is fixedly installed on the power generation shaft (23). A generator (26) is fixedly installed on the valve body (1). An output bevel gear (25) is fixedly installed on the input rod of the generator (26). The output bevel gear (25) and the input bevel gear (24) form a gear engagement. The control valve further includes an overspeed protection mechanism, which includes a centrifugal disc (27). The centrifugal disc (27) is fixedly installed on the power generation shaft (23). A chute is provided on the centrifugal disc (27). A sliding rod (29) is installed on the chute of the centrifugal disc (27). The sliding rod (29) is slidably installed on the centrifugal disc (27). A centrifugal wheel (28) is fixedly installed on the sliding rod (29). A tension spring (30) is fixedly installed on the sliding rod (29). The tension spring (30) is fixedly connected to the centrifugal disc (27). A sensor (31) is fixedly installed on the centrifugal disc (27).

2. An electric control valve according to claim 1, characterized in that: A discharge plate (9) is fixedly installed on the valve body (1). A push plate (8) is slidably installed on the discharge plate (9). An inner spring (10) is fixedly installed on the push plate (8). The inner spring (10) is connected to the discharge plate (9).

3. An electric control valve according to claim 2, characterized in that: Linkage flow measurement mechanisms are arranged on both the right outlet (2) and the left outlet (3).

4. An electric control valve according to claim 3, characterized in that: A cable (32) is installed on the generator (26), and the cable (32) is connected to the bidirectional electric cylinder (4).

5. An electric control valve according to claim 4, characterized in that: The sensor (31) is electrically connected to the bidirectional electric cylinder (4).

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