A large-caliber intelligent photoelectric spring-pressure sealed gate valve

Abstract

The present invention relates to a large-caliber intelligent photoelectric spring-pressure sealing gate valve, comprising a valve seat, a gate, an inner valve plate, an outer valve plate, a spring, and an intelligent photoelectric switch. A vertical rectangular groove is opened at the front end of the valve seat, the inner valve plate is installed at the bottom of the rectangular groove, the outer valve plate is installed on the outer side of the inner valve plate through a plurality of screws and nuts, a plurality of gaskets are arranged between the outer valve plate and the inner valve plate, each gasket is correspondingly sleeved on the screw, a spring is designed between the nut and the outer valve plate, the spring is sleeved on the screw, the nut is rotatably installed on the screw, one end of the spring is pressed against the outer side of the outer valve plate, the other end of the spring is pressed against the inner side of the nut, and the gate is slidably installed between the outer valve plate and the inner valve plate. The advantage is that the gate is designed between the outer valve plate and the inner valve plate, and the outer side of the outer valve plate is pressed against the outer side of the inner valve plate through the nut and the spring, the spring provides a pressing force, ensures that the outer valve plate is always tightly pressed against the outer side of the inner valve plate, ensures that the gate plate and the outer valve plate slide and seal, is safe and reliable, and prolongs the service life.

Description

Technical Field

[0001] The invention relates to an agricultural irrigation water supply regulating gate valve, in particular to a large-caliber intelligent photoelectric spring-pressure sealing gate valve. Background Art

[0002] Regulating gates are important facilities used in water conservancy projects to regulate water flow and water level. Their main functions include raising the water level in the channel, cutting off the water flow in the channel, and implementing rotation irrigation. Regulating gates are often built downstream of diversion gates and sluice gates to facilitate water diversion and discharge; or built upstream of aqueducts, inverted siphons, etc. to control water flow and accident maintenance.

[0003] At present, agricultural irrigation water supply control gate valves are large in size. After long-term use, components such as sealing rings are easily damaged, and poor sealing is prone to leakage. In addition, large gate valves are opened and closed by motor-driven screw rods. However, once the gate valve is stuck, the motor will be overloaded. Moreover, agricultural irrigation uses remote monitoring, and the problem of gate valve sticking cannot be discovered in time, which can easily cause damage to the motor and connecting shaft. Summary of the invention

[0004] In order to solve the above technical problems, the present invention proposes a large-caliber intelligent photoelectric spring-pressure sealed gate valve, which has a clever design, a reasonable and compact structure, good sealing performance, and meets the needs of long-term use.

[0005] The technical solution of the present invention: A large-caliber intelligent photoelectric spring-pressure sealed gate valve, which includes a valve seat, a gate, an inner valve plate, an outer valve plate, a spring, and an intelligent photoelectric switch part. The valve seat is designed as a rectangular body, and a vertical rectangular groove is opened at the front end of the valve seat. The vertical rectangular groove runs through the upper and lower end surfaces of the valve seat, and the inner valve plate is installed at the bottom of the rectangular groove. The outer valve plate is installed on the outer side of the inner valve plate through a plurality of screws and nuts. A plurality of gaskets are padded between the outer valve plate and the inner valve plate, and each gasket is correspondingly sleeved on the screw. A spring is designed between the nut and the outer valve plate, and the spring is sleeved on the screw. The nut is rotatably installed on the screw. One end of the spring is pressed against the outer side of the outer valve plate, and the other end of the spring is pressed against the inner side of the nut. The gate is slidably installed between the outer valve plate and the inner valve plate. The intelligent photoelectric switch part is installed above the valve seat, and the lower end of the intelligent photoelectric switch part is driven to connect to the upper end of the gate plate; a circular hole is horizontally opened on the valve seat, and circular holes are also opened on the inner valve plate and the outer valve plate, respectively. The circular hole of the valve seat is connected with the circular holes of the inner valve plate and the outer valve plate.

[0006] The intelligent photoelectric switch unit includes a door-type frame, a driving motor, a worm gear assembly, a lead screw and an electromagnetic clutch. The door-type frame is installed on the valve seat, the lower end of the lead screw is connected to the middle position of the upper end of the gate plate, the worm gear assembly is installed on the upper end of the door-type frame, and the driving motor is also installed on the upper end of the door-type frame. The driving motor is connected to the worm gear assembly through the electromagnetic clutch. The middle of the worm wheel of the worm gear assembly is designed with a thread, and the lead screw is rotatably installed in the middle of the worm wheel.

[0007] The intelligent photoelectric switch unit also includes a wireless monitoring and control box, a solar photovoltaic panel, an upstream water level probe, a downstream low water level probe, a downstream high water level probe, and a wireless antenna. The upstream water level probe is installed at the upper end of the circular hole inside the valve seat, and the downstream low water level probe and the downstream high water level probe are installed in sequence at the upper end of the outer side of the outer valve plate. The wireless monitoring and control box is installed at the upper end of one side of the door-type frame, and a wireless antenna is installed at the upper end of the wireless monitoring and control box. A solar photovoltaic panel is installed on one side of the upper end of the door-type frame through a support rod. The wireless monitoring and control box is electrically connected to the solar photovoltaic panel, the upstream water level probe, the downstream low water level probe, the downstream high water level probe, the wireless antenna, the electromagnetic clutch and the drive motor.

[0008] One end of the worm of the worm gear assembly is connected to the electromagnetic clutch, and the other end of the worm passes through the housing of the worm gear assembly to extend a section of end shaft, which is designed to be a rectangular block and has a hand wheel installed on it.

[0009] The electromagnetic clutch is a dry non-contact electromagnetic clutch.

[0010] The valve seat is prefabricated in one piece with reinforced concrete, and a plurality of screw rods are pre-buried on the valve seat.

[0011] A sleeve is also designed at the upper end of the door-shaped frame, which is sleeved on the outer side of the upper end of the screw rod, and the lower end of the sleeve is installed on the housing of the worm gear assembly; an upper proximity switch is installed on one side of the sleeve near the upper end, and a lower proximity switch is installed on one side of the sleeve near the lower end, and the wireless monitoring control box is electrically connected to the upper proximity switch and the lower proximity switch respectively.

[0012] The thickness of the gate plate is the same as the thickness of the gasket.

[0013] The advantages of the present invention are: The gate is designed between the outer valve plate and the inner valve plate, and the outer side of the outer valve plate is pressed against the outer side of the inner valve plate by a nut and a spring. The spring provides a pressing force to ensure that the outer valve plate is always pressed tightly against the outer side of the inner valve plate, ensuring the sliding seal between the gate and the outer valve plate, which is safe and reliable and extends the service life. The driving motor and the worm gear assembly are connected through an electromagnetic clutch, which solves the problem of motor overload driving after the gate is stuck. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a front view schematic diagram of the present invention.

[0015] Figure 2 It is a top view schematic diagram of the inner valve plate and the outer valve plate of the present invention.

[0016] Figure 3 It is a rear view of the valve seat of the present invention. DETAILED DESCRIPTION

[0017] Referring to the accompanying drawings, a large-caliber intelligent photoelectric spring-pressure sealed gate valve includes a valve seat 1, a gate plate 2, an inner valve plate 3, an outer valve plate 4, a spring 5, and an intelligent photoelectric switch. The valve seat 1 is designed as a rectangular body. A vertical rectangular groove is opened at the front end of the valve seat 1. The vertical rectangular groove passes through the upper and lower end surfaces of the valve seat 1. The inner valve plate 3 is installed at the bottom of the rectangular groove. The outer valve plate 4 is installed on the outer side of the inner valve plate 3 through a plurality of screws 6 and nuts 7. A plurality of gaskets 20 are arranged between the outer valve plate 4 and the inner valve plate 3. Each gasket 20 is correspondingly sleeved on the screw 6. The nut A spring 5 is designed between the valve seat 7 and the outer valve plate 4. The spring 5 is sleeved on the screw 6. The nut 7 is rotatably installed on the screw 6. One end of the spring 5 is pressed against the outer side of the outer valve plate 4, and the other end of the spring 5 is pressed against the inner side of the nut 7. The gate 2 is slidably installed between the outer valve plate 4 and the inner valve plate 3. The intelligent photoelectric switch part is installed above the valve seat 1. The lower end of the intelligent photoelectric switch part is driven to connect the upper end of the gate 2. The valve seat 1 is horizontally opened with a circular hole, and the inner valve plate 3 and the outer valve plate 4 are also respectively opened with circular holes. The circular hole of the valve seat 1 is connected with the circular holes of the inner valve plate 3 and the outer valve plate 4. The gate slides up and down between the inner valve plate and the outer valve plate to achieve the conduction and cutoff of the circular hole of the valve seat and the circular hole of the outer valve plate.

[0018] The thickness of the gate plate 2 is the same as that of the gasket 20. Ensure that the gate plate can slide up and down while ensuring the necessary sealing performance. The gasket design also forms a hollow state between the outer valve plate and the inner valve plate. During use, even if there is some sludge, it can be squeezed out from the bottom, and it will not cause a jamming problem. The gate plate width is larger than the circular hole diameter of the outer valve plate and the inner valve plate, and the gate plate width is less than or equal to the horizontal distance between the gaskets on both sides to prevent the gasket from interfering with the lifting and lowering of the gate plate. The nut locks the outer valve plate and a spring is designed on the outside of the inner valve plate for pre-tightening. The nut compresses the spring so that the spring accumulates force and always presses the outer valve plate, so that the outer valve plate can always be tightly moved inward, ensuring that the gap between the outer valve plate and the inner valve plate remains unchanged, and the sealing effect is good after the gate plate is closed.

[0019] The intelligent photoelectric switch unit includes a door-type frame 8, a drive motor 9, a worm gear assembly 10, a screw 11 and an electromagnetic clutch 12. The door-type frame 8 is installed on the valve seat 1. The lower end of the screw 11 is connected to the middle position of the upper end of the gate plate 2. The worm gear assembly 10 is installed on the upper end of the door-type frame 8. The drive motor 9 is also installed on the upper end of the door-type frame 8. The drive motor 9 is driven by the electromagnetic clutch 12 to connect the worm gear assembly 10. The middle of the worm wheel of the worm gear assembly 10 is designed with a thread, and the screw 11 is rotatably installed in the middle of the worm wheel. The worm gear assembly drives the screw to move the gate plate up and down, which belongs to the prior art and is briefly described in the present invention. This design mainly adds an electromagnetic clutch to replace the previous mechanical interlocking coupling. The electromagnetic clutch 12 is a dry non-contact electromagnetic clutch 12. The driving end of the drive motor is connected to the rotating end (moving plate) of the electromagnetic clutch, and the armature flange of the electromagnetic clutch is fixedly connected to one end of the worm. The gap between the rotating end (moving plate) and the armature flange is installed and matched, with a reservation of about 0.2mm. When powered on, magnetic adsorption is performed. When overloaded, the rotating end (moving plate) of the electromagnetic clutch and the armature flange can slip to prevent the drive motor from being damaged by overload. Manufacturer of electromagnetic clutch: Tianjin Jieyun Transmission Machinery Co., Ltd.

[0020] The intelligent photoelectric switch unit also includes a wireless monitoring control box 13, a solar photovoltaic panel 14, an upstream water level probe 15, a downstream low water level probe 16, a downstream high water level probe 17, and a wireless antenna 18. The upper end of the circular hole of the valve seat 1 is equipped with an upstream water level probe 15, and the upper end of the outer side of the outer valve plate 4 is equipped with a downstream low water level probe 16 and a downstream high water level probe 17 in sequence. The wireless monitoring control box 13 is installed on the upper end of one side of the door-type frame 8, and the upper end of the wireless monitoring control box 13 is equipped with a wireless antenna 18. A solar photovoltaic panel 14 is installed on one side of the upper end of the door-type frame 8 through a support rod. The wireless monitoring control box 13 is electrically connected to the solar photovoltaic panel 14, the upstream water level probe 15, the downstream low water level probe 16, the downstream high water level probe 17, the wireless antenna 18, the electromagnetic clutch 12, and the drive motor 9. The installation position of the upstream water level probe is used to detect whether there is water upstream. When there is water, the gate is opened to effectively irrigate and prevent water from flowing back. The downstream low water level probe 16 and the downstream high water level probe 17 are used to monitor the water level of the downstream farmland, and can automatically feedback signals to achieve automatic irrigation. The upper end of the upstream water level probe 15 passes through the valve seat.

[0021] One end of the worm of the worm gear assembly 10 is connected to the electromagnetic clutch 12, and the other end of the worm passes through the housing of the worm gear assembly 10 and extends out a section of end shaft, which is designed to be a rectangular block, and a handwheel is installed on the end shaft. The handwheel design ensures that the staff can manually switch on and off on site. The electromagnetic clutch designed by the present invention is separated from the worm gear assembly and the drive motor when there is no power, which is very labor-saving and convenient for manual switch operation. The valve seat 1 is prefabricated with reinforced concrete and processed as a whole, and a number of screws 6 are pre-buried on the valve seat 1. The design is simple and practical, low cost, good effect, and the screws are firmly installed.

[0022] A sleeve 19 is also designed at the upper end of the door-shaped frame 8, and the sleeve 19 is sleeved on the outer side of the upper end of the screw rod 11, and the lower end of the sleeve 19 is installed on the housing 8 of the worm gear assembly 10; an upper proximity switch 21 is installed on one side of the sleeve 19 near the upper end, and a lower proximity switch 22 is installed on one side of the sleeve 19 near the lower end, and the wireless monitoring control box 13 is electrically connected to the upper proximity switch 21 and the lower proximity switch 22 respectively. The upper and lower proximity switches are designed to monitor whether the gate valve is in place. If the drive motor is not in place for a long time (generally 1-2 minutes), it indicates that a fault occurs during the gate valve opening and closing process, and a signal can be fed back to the mobile phone or computer remote control terminal, and someone can be sent to conduct on-site troubleshooting. The worm gear assembly, the electric clutch and the drive motor can be covered on the top of the door-shaped frame by a rectangular cover to play a protective role, and the screw rod and the sleeve can pass through it.

[0023] When the present invention is used, the valve seat is pre-cast with reinforced concrete at the position where the gate valve of the present invention needs to be installed. After solidification, the other components of the present invention are assembled on site. The wireless monitoring control box is connected to a mobile phone or computer via a wireless antenna for remote operation; the solar photovoltaic panel can charge the battery pack in the wireless monitoring control box, and no additional power supply is required, and it can still be used outdoors; the upstream water level probe monitors the presence of water at the upstream water inlet. When the downstream low water level probe cannot detect the water level, the feedback signal is a low water level, the wireless monitoring control box receives the signal, and controls the drive motor to rotate, and the electromagnetic clutch is also energized to generate suction, thereby driving the motor The worm gear assembly is driven to rotate, and the worm gear rotates to act on the middle lead screw. The lead screw rises under the action of the thread, and the lead screw brings the gate up until the upper proximity switch senses the lead screw approaching signal and feeds back to the wireless monitoring control box. The wireless monitoring control box controls the drive motor to stop rotating and open in place; when the downstream high water level probe senses the water level, the feedback signal of high water level is given to the wireless monitoring control box, and the wireless monitoring control box controls the drive motor to rotate in the opposite direction, thereby controlling the gate to move downward, and the lower proximity switch cannot sense the lead screw signal and feeds back to the wireless monitoring control box. The wireless monitoring control box controls the drive motor to stop rotating and close in place.

Claims

1. A large-caliber intelligent photoelectric spring-pressure sealed gate valve, characterized in that: It includes a valve seat, a gate, an inner valve plate, an outer valve plate, a spring, and an intelligent photoelectric switch part. The valve seat is designed as a rectangular body. A vertical rectangular groove is opened at the front end of the valve seat. The vertical rectangular groove runs through the upper and lower end surfaces of the valve seat, and the inner valve plate is installed at the bottom of the rectangular groove. The outer valve plate is installed on the outer side of the inner valve plate through a plurality of screws and nuts. A plurality of gaskets are arranged between the outer valve plate and the inner valve plate, and each gasket is correspondingly sleeved on the screw. A spring is designed between the nut and the outer valve plate, and the spring is sleeved on the screw. The nut is rotatably installed on the screw. One end of the spring is pressed against the outer side of the outer valve plate, and the other end of the spring is pressed against the inner side of the nut. The gate is slidably installed between the outer valve plate and the inner valve plate. The intelligent photoelectric switch part is installed above the valve seat, and the lower end of the intelligent photoelectric switch part is driven to connect to the upper end of the gate plate. A circular hole is horizontally opened on the valve seat, and circular holes are also opened on the inner valve plate and the outer valve plate, respectively. The circular hole of the valve seat is connected with the circular holes of the inner valve plate and the outer valve plate.

2. A large-caliber intelligent photoelectric spring-pressure sealed gate valve according to claim 1, characterized in that: The intelligent photoelectric switch unit includes a door-type frame, a driving motor, a worm gear assembly, a lead screw and an electromagnetic clutch. The door-type frame is installed on the valve seat, the lower end of the lead screw is connected to the middle position of the upper end of the gate plate, the worm gear assembly is installed on the upper end of the door-type frame, and the driving motor is also installed on the upper end of the door-type frame. The driving motor is connected to the worm gear assembly through the electromagnetic clutch. The middle of the worm wheel of the worm gear assembly is designed with a thread, and the lead screw is rotatably installed in the middle of the worm wheel.

3. A large-caliber intelligent photoelectric spring-pressure sealed gate valve according to claim 2, characterized in that: The intelligent photoelectric switch unit also includes a wireless monitoring and control box, a solar photovoltaic panel, an upstream water level probe, a downstream low water level probe, a downstream high water level probe, and a wireless antenna. The upstream water level probe is installed at the upper end of the circular hole inside the valve seat, and the downstream low water level probe and the downstream high water level probe are installed in sequence at the upper end of the outer side of the outer valve plate. The wireless monitoring and control box is installed at the upper end of one side of the door-type frame, and a wireless antenna is installed at the upper end of the wireless monitoring and control box. A solar photovoltaic panel is installed on one side of the upper end of the door-type frame through a support rod. The wireless monitoring and control box is electrically connected to the solar photovoltaic panel, the upstream water level probe, the downstream low water level probe, the downstream high water level probe, the wireless antenna, the electromagnetic clutch and the drive motor.

4. A large-caliber intelligent photoelectric spring-pressure sealed gate valve according to claim 2 or 3, characterized in that: One end of the worm of the worm gear assembly is connected to the electromagnetic clutch, and the other end of the worm passes through the housing of the worm gear assembly to extend a section of end shaft, which is designed to be a rectangular block and has a hand wheel installed on it.

5. A large-caliber intelligent photoelectric spring-pressure sealing gate valve according to claim 4, characterized in that: The electromagnetic clutch is a dry non-contact electromagnetic clutch.

6. A large-caliber intelligent photoelectric spring-pressure sealed gate valve according to claim 1, characterized in that: The valve seat is prefabricated in one piece with reinforced concrete, and a plurality of screw rods are pre-buried on the valve seat.

7. A large-caliber intelligent photoelectric spring-pressure sealed gate valve according to claim 2, characterized in that: A sleeve is also designed at the upper end of the door-shaped frame, which is sleeved on the outer side of the upper end of the screw rod, and the lower end of the sleeve is installed on the housing of the worm gear assembly; an upper proximity switch is installed on one side of the sleeve near the upper end, and a lower proximity switch is installed on one side of the sleeve near the lower end, and the wireless monitoring control box is electrically connected to the upper proximity switch and the lower proximity switch respectively.

8. The large-caliber intelligent photoelectric spring-pressure sealing gate valve according to claim 1 is characterized in that: The thickness of the gate plate is the same as the thickness of the gasket.

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