Filtering device for water conservancy irrigation

Abstract

The invention relates to the technical field of water conservancy irrigation equipment, in particular to a water conservancy irrigation filtering device which comprises a filtering tank, a water inlet pipe is arranged on the lower portion of the filtering tank, and a water outlet pipe is arranged on the upper portion of the filtering tank. The filter screen is rotationally arranged in the filter tank, and the filter screen is connected with the inner wall of the filter tank through a magnetic connecting mechanism; the flow guide plate is rotationally arranged in the filtering tank and is positioned between the filtering net and the water inlet pipe; the blow-off pipe is arranged on the side surface of the water outlet pipe in a communicating manner; the device solves the problems that a traditional filtering device for water conservancy irrigation is low in cleaning efficiency and inconvenient to operate.

Description

Technical Field

[0001] The invention relates to the technical field of water conservancy irrigation equipment, and in particular to a filtering device for water conservancy irrigation. Background Art

[0002] The water conservancy irrigation filter is a device used to remove impurities and suspended matter from the water in the water supply irrigation system. Its purpose is to ensure that the water in the irrigation system can flow cleanly and avoid impurities clogging pipes, sprinklers and other equipment, thereby ensuring the normal operation of the irrigation system.

[0003] A Chinese patent with patent publication number CN222076034U discloses an irrigation filter, including a tank body, a pumping member, a filtering mechanism and a cleaning mechanism. The lower part of the tank body is provided with a water inlet, the upper part of the tank body is provided with a water outlet, the water outlet is connected to the pumping member, the filtering mechanism is provided inside the tank body, the cleaning mechanism is provided below the filtering mechanism, and the cleaning mechanism is connected to the tank body.

[0004] Most of the existing water conservancy irrigation filtering devices clean the filter by backflushing. This cleaning method usually separates the filter and dirt through the impact of water flow, but backflushing cleaning has high requirements for water pressure. If the water pressure is low, it is easy to cause the filter to be not cleaned properly. In addition, backflushing cleaning requires the input and output ends of the filter to be reversed, and the operation is relatively cumbersome. Therefore, it is necessary to develop a water conservancy irrigation filtering device with high cleaning efficiency and easy operation. Summary of the invention

[0005] The purpose of the present invention is to provide a water conservancy irrigation filtering device, which solves the problems of low cleaning efficiency and inconvenient operation of traditional water conservancy irrigation filtering devices.

[0006] The technical solution adopted by the present invention to solve the technical problem is:

[0007] The present invention provides a filtering device for water conservancy irrigation, comprising a filtering tank, wherein a water inlet pipe is provided at the lower part of the filtering tank, and a water outlet pipe is provided at the upper part; a filter screen, wherein the filter screen is rotatably arranged inside the filtering tank, and the filter screen and the inner wall of the filtering tank are connected by a magnetic connection mechanism; a guide plate, wherein the guide plate is rotatably arranged inside the filtering tank and is located between the filter screen and the water inlet pipe; and a sewage pipe, wherein the sewage pipe is connected and arranged on the side of the water outlet pipe.

[0008] Furthermore, the magnetic connection mechanism includes a first groove, a second groove, a first magnet and a second magnet, the first grooves are arranged on the side of the filter net, the second grooves are arranged correspondingly on the inner wall of the filter tank, the first magnet is fixedly arranged inside the first groove, and the second magnet is fixedly arranged inside the second groove.

[0009] Furthermore, the first magnet is a permanent magnet, and the second magnet is an electromagnet.

[0010] Furthermore, the filter screen is rotatably arranged inside the filter tank via a first rotating shaft.

[0011] Furthermore, the guide plate is rotatably arranged inside the filter tank via a second rotating shaft, the second rotating shaft penetrates the side wall of the filter tank and is connected to the motor, and the motor is arranged on the outside of the filter tank via a bracket.

[0012] Furthermore, the first rotating shaft and the second rotating shaft are arranged in parallel, and the motor is a stepping motor.

[0013] Furthermore, an ultrasonic sensor is provided on the inner wall of the bottom surface of the filter tank, and a first supporting leg is provided on the lower part of the filter tank.

[0014] Furthermore, the water outlet pipe is provided with a first valve, the sewage pipe is provided with a second valve, and the sewage pipe is in an L-shape.

[0015] Furthermore, a water recovery tank is provided below the sewage pipe, and the water recovery tank is connected to the filter tank through a connecting rod. An upwardly protruding block is provided on the upper part of the water recovery tank, a collecting enclosure is provided on the lower side of the water recovery tank, a drainage pipe is provided at the lower part of the water recovery tank, and a second support leg is provided at the lower part of the water recovery tank.

[0016] Furthermore, the filter tank is cylindrical in shape, the filter screen is circular in shape, and the diameter of the filter screen is smaller than the inner diameter of the filter tank.

[0017] Technical effects of the present invention:

[0018] Compared with the prior art, the water conservancy irrigation filtering device involved in the present invention, by providing a rotatable filter screen, a guide plate, a first magnet and a second magnet, allows the device to quickly clean the filter screen through the impact of the water flow and the centrifugal action generated when the filter screen rotates, thereby greatly improving the cleaning efficiency of the device and facilitating the cleaning and maintenance of the device. In addition, the magnets are sensitive to each other, and the filter screen can be quickly fixed and separated, further improving the cleaning and filtering efficiency of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0020] Figure 2 It is a longitudinal cross-sectional view of the filter tank in the present invention;

[0021] Figure 3 For the present invention Figure 2 AA section view;

[0022] Figure 4 For the present invention Figure 3 A schematic diagram of the enlarged structure of part B;

[0023] Figure 5 It is a partial cross-sectional view of the filter tank in the present invention;

[0024] Figure 6 It is a longitudinal sectional view of the water recovery tank in the present invention.

[0025] in:

[0026] 1. Filter tank; 2. Water recovery tank; 3. Water inlet pipe; 4. Water outlet pipe; 5. Sewage pipe; 6. Motor; 7. Bracket; 8. First valve; 9. Second valve; 10. Connecting rod; 11. First leg; 12. Filter net; 13. First rotating shaft; 14. Second rotating shaft; 15. Guide plate; 16. Ultrasonic sensor; 17. First groove; 18. First magnet; 19. Second groove; 20. Second magnet; 21. Blocking net; 22. Second leg; 23. Drain pipe; 24. Collection enclosure. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] Example:

[0029] like Figure 1 , 2As shown in Figures 3 and 5, a water conservancy irrigation filtering device according to the present embodiment comprises a filtering tank 1, wherein a water inlet pipe 3 is provided at the bottom of the filtering tank 1, and a water outlet pipe 4 is provided at the top. An ultrasonic sensor 16 is provided on the inner wall of the bottom surface of the filtering tank 1, and the ultrasonic sensor 16 measures the time change of the propagation of sound waves to infer the accumulation of dirt, and then determines whether the device needs to be cleaned. A first leg 11 is provided at the bottom of the filtering tank 1; a filter screen 12 is rotatably arranged inside the filtering tank 1, and the filter screen 12 is connected to the inner wall of the filtering tank 1 by a magnetic connection mechanism. The filtering tank 1 is cylindrical in shape, and the filter screen 12 is circular in shape. The diameter of the filter screen 12 is less than The inner diameter of the filter tank 1 is used to control the water flow to impact one side of the filter screen 12 when cleaning the filter screen 12. Under the impact of the water flow, the filter screen 12 rotates rapidly inside the filter tank 1. Under the impact of the water flow and the centrifugal effect generated when the filter screen 12 rotates, the filter screen 12 is quickly cleaned; the guide plate 15 is rotatably arranged inside the filter tank 1 and is located between the filter screen 12 and the water inlet pipe 3. The guide plate 15 is used to control the flow direction of the water flow so that the water flow on one side of the filter screen 12 is greater than the water flow on the other side, thereby causing the filter screen 12 to rotate rapidly; the sewage pipe 5 is connected to the side of the water outlet pipe 4, and the sewage pipe 5 is used to discharge dirt separated from the filter screen 12.

[0030] like Figure 4 As shown, the magnetic connection mechanism includes a first groove 17, a second groove 19, a first magnet 18 and a second magnet 20. The first groove 17 is arranged on the side of the filter screen 12, and the second groove 19 is arranged on the inner wall of the filter tank 1. The first magnet 18 is fixedly arranged inside the first groove 17, and the second magnet 20 is fixedly arranged inside the second groove 19. The first magnet 18 is a permanent magnet, and the second magnet 20 is an electromagnet. When filtering, the second magnet 20 is started, and the second magnet 20 is attracted to the first magnet 18 to fix the filter screen 12 inside the filter tank 1. When the filtering work of the device is completed and cleaning is performed, the second magnet 20 is turned off, and the filter screen 12 rotates rapidly under the impact of the water flow to complete the cleaning of the filter screen 12; by providing a rotatable filter screen 12, a guide plate 15, a first magnet 18 and a second magnet 20, the device can quickly clean the filter screen 12 through the impact of the water flow and the centrifugal action generated when the filter screen 12 rotates, which greatly improves the cleaning efficiency of the device and facilitates the cleaning and maintenance of the device. In addition, the magnets are sensitive to each other, and the fixing and separation of the filter screen 12 can be quickly completed, further improving the cleaning and filtering efficiency of the device.

[0031] like Figure 2 , 5As shown, the filter screen 12 is rotatably arranged inside the filter tank 1 through the first rotating shaft 13, and the guide plate 15 is rotatably arranged inside the filter tank 1 through the second rotating shaft 14. The second rotating shaft 14 penetrates the side wall of the filter tank 1 and is connected to the motor 6. The motor 6 is arranged on the outside of the filter tank 1 through the bracket 7. The first rotating shaft 13 and the second rotating shaft 14 are arranged in parallel. The motor 6 is a bipolar stepper motor. The bipolar stepper motor can provide a large holding torque when it stops, so as to maintain the guide plate 15 at a fixed angle. When water filtering is performed, the motor 6 is controlled to rotate so that the guide plate 15 is perpendicular to the filter screen 12, so that the forces on both sides of the filter screen 12 are balanced. When cleaning the filter screen 12, the motor 6 is controlled to rotate so that the guide plate 15 is inclined 30°-60° with the filter screen 12. The forces on both sides of the filter screen 12 are uneven, and the filter screen 12 rotates rapidly.

[0032] like Figure 1 , 6 As shown, the water outlet pipe 4 is provided with a first valve 8, the sewage pipe 5 is provided with a second valve 9, the first valve 8 and the second valve 9 are both solenoid valves, the sewage pipe 5 is in an L-shape, a water recovery tank 2 is provided below the sewage pipe 5, the water recovery tank 2 is connected to the filter tank 1 through a connecting rod 10, an upwardly protruding blocking net 21 is provided on the upper part of the water recovery tank 2, a collecting enclosure 24 is provided on the lower side of the water recovery tank 2, a drain pipe 23 is provided at the lower part of the water recovery tank 2, and a second support leg 22 is provided at the lower part of the water recovery tank 2.

[0033] How it works

[0034] When filtering irrigation water, the first valve 8 is opened and the second valve 9 is closed, and then the motor 6 is controlled to rotate so that the guide plate 15 is perpendicular to the filter screen 12, and irrigation water is introduced into the water inlet pipe 3, and the irrigation water enters the interior of the filter tank 1, and the electromagnet is started, and the electromagnet fixes the filter screen 12. When the irrigation water passes through the filter screen 12, impurities in the irrigation water are intercepted by the filter screen 12, and the clean irrigation water passes through the filter screen 12 and is output from the water outlet pipe 4, completing the filtration of the irrigation water;

[0035] When cleaning the device, the ultrasonic sensor 16 detects that there is a lot of dirt accumulated on the filter screen 12, and then closes the first valve 8 and opens the second valve 9, and then controls the motor 6 to rotate, so that the guide plate 15 and the filter screen 12 are inclined at 45 degrees, and water is passed into the water inlet pipe 3. Under the guiding effect of the guide plate 15, the water flow on one side of the filter screen 12 is large, and the water flow on the other side is small, and the two sides of the filter screen 12 are unevenly stressed. Then the electromagnet is closed, and the filter screen 12 rotates rapidly under the impact of the water flow. Under the dual effects of the impact of the water flow and the centrifugal force generated when the filter screen 12 rotates, the dirt is separated from the filter screen 12 and enters the sewage pipe 5. After the dirt is output from the sewage pipe 5, it falls onto the collection enclosure 24 under the interception effect of the blocking net 21, and the remaining water is recovered into the water recovery tank 2, completing the cleaning of the device.

[0036] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the attached claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0037] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A filtering device for water conservancy irrigation, characterized in that: include: A filter tank, wherein a water inlet pipe is provided at the lower part of the filter tank, and a water outlet pipe is provided at the upper part of the filter tank; A filter screen, the filter screen is rotatably disposed inside the filter tank, and the filter screen is connected to the inner wall of the filter tank via a magnetic connection mechanism; A guide plate, the guide plate is rotatably arranged inside the filter tank and is located between the filter screen and the water inlet pipe; A sewage pipe is connected and arranged on the side of the water outlet pipe.

2. A water conservancy irrigation filtering device according to claim 1, characterized in that: The magnetic connection mechanism includes a first groove, a second groove, a first magnet and a second magnet. The first grooves are arranged on the side of the filter net, and the second grooves are arranged on the inner wall of the filter tank accordingly. The first magnet is fixedly arranged inside the first groove, and the second magnet is fixedly arranged inside the second groove.

3. A water conservancy irrigation filtering device according to claim 2, characterized in that: The first magnet is a permanent magnet, and the second magnet is an electromagnet.

4. A water conservancy irrigation filtering device according to claim 1, characterized in that: The filter screen is rotatably arranged inside the filter tank via a first rotating shaft.

5. A water conservancy irrigation filtering device according to claim 4, characterized in that: The guide plate is rotatably arranged inside the filter tank via a second rotating shaft, the second rotating shaft penetrates the side wall of the filter tank and is connected to a motor, and the motor is arranged outside the filter tank via a bracket.

6. A water conservancy irrigation filtering device according to claim 5, characterized in that: The first rotating shaft and the second rotating shaft are arranged in parallel, and the motor is a stepping motor.

7. A water conservancy irrigation filtering device according to claim 1, characterized in that: An ultrasonic sensor is arranged on the inner wall of the bottom surface of the filter tank, and a first supporting leg is arranged at the lower part of the filter tank.

8. A water conservancy irrigation filtering device according to claim 1, characterized in that: The water outlet pipe is provided with a first valve, the sewage pipe is provided with a second valve, and the sewage pipe is in an L-shape.

9. A water conservancy irrigation filtering device according to claim 8, characterized in that: A water recovery tank is provided below the sewage pipe, and the water recovery tank is connected to the filter tank through a connecting rod. An upwardly protruding block is provided on the upper part of the water recovery tank, a collecting enclosure is provided on the lower side of the water recovery tank, a drainage pipe is provided at the lower part of the water recovery tank, and a second support leg is provided at the lower part of the water recovery tank.

10. A water conservancy irrigation filtering device according to claim 1, characterized in that: The filter tank is cylindrical in shape, the filter screen is circular in shape, and the diameter of the filter screen is smaller than the inner diameter of the filter tank.

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