A self-cleaning mesh filter for agricultural irrigation and automatic control method thereof

Abstract

The present invention discloses a self-cleaning mesh filter for agricultural irrigation and an automatic control method thereof, belonging to the technical field of filters. It mainly comprises a box body, a moving block is arranged inside the box body, the moving block is suitable for moving in the box body, a circular receiving groove is arranged on one side of the moving block, a circular ring-shaped rotating frame is arranged rotatably in the receiving groove, a plurality of rotating grooves are distributed circumferentially on the rotating frame, a filter screen is arranged in the rotating groove, a water inlet, a water outlet and a drain are arranged on the moving block, the water inlet, the water outlet and the drain are respectively aligned with a rotating groove, an inlet pipe, a water outlet pipe and a drain pipe are fixed on the outside of the box body, the water inlet pipe, the water outlet pipe and the drain pipe correspond to the positions of the water inlet, the water outlet and the drain pipe, a valve is arranged in the drain pipe, and the height of the water outlet pipe is higher than the drain pipe. The self-cleaning mesh filter for agricultural irrigation and the automatic control method thereof of the present application achieve the effect of allowing fertilizer particles to pass through.

Description

Technical Field

[0001] The present invention relates to the technical field of filters, and more particularly to a self-cleaning mesh filter for agricultural irrigation and an automatic control method thereof. Background Art

[0002] In existing agricultural irrigation equipment, a mesh filter is usually used to filter irrigation water, and the agricultural irrigation equipment is also used to spray fertilizer water.

[0003] However, when the temperature is too low, or too little water is added during mixing, the fertilizer will not dissolve fully. At this time, the fertilizer particles in the fertilizer water will be filtered out by the filter, resulting in insufficient fertilizer spraying, insufficient nutrients for vegetables, and affecting vegetable growth.

[0004] Therefore, it is necessary to provide a self-cleaning mesh filter for agricultural irrigation and an automatic control method thereof to solve the above problems. Summary of the invention

[0005] Based on the above problems existing in the prior art, the purpose of the embodiments of the present application is to provide a self-cleaning mesh filter for agricultural irrigation and an automatic control method thereof, so as to achieve the effect of allowing fertilizer particles to pass through.

[0006] The technical solution adopted by the present application to solve its technical problems is: a self-cleaning mesh filter for agricultural irrigation and an automatic control method thereof, comprising a box body, a moving block is arranged inside the box body, the moving block is suitable for moving in the box body, a circular accommodating groove is arranged on one side of the moving block, a circular ring-shaped rotating frame is rotatably arranged in the accommodating groove, a plurality of rotating grooves are distributed circumferentially on the rotating frame, a filter is arranged in the rotating groove, a water inlet, a water outlet and a drain are arranged on the moving block, the water inlet, the water outlet and the drain are respectively aligned with a rotating groove, an inlet pipe, a water outlet pipe and a drain pipe are fixed on the outside of the box body, the water inlet pipe, the water outlet pipe and the drain pipe correspond to the positions of the water inlet, the water outlet and the drain respectively, a valve is arranged in the drain pipe, and the height of the water outlet pipe is higher than the drain pipe.

[0007] Furthermore, a plurality of first guide rails are fixed to the inner wall of the box body, the length direction of the first guide rails is parallel to the rotation axis of the rotating frame, the moving block is slidably connected to the first guide rails, a plurality of telescopic rods are fixed to one side of the outer wall of the box body, and the output rods of the telescopic rods are extended into the interior of the box body and fixed to one side of the moving block.

[0008] Furthermore, a driving shaft is rotatably connected between the two ends of the box body, a shaft sleeve is fixed at the rotation center of the rotating frame, the shaft sleeve is slidably sleeved on the driving shaft, a driver is fixed on one side of the outside of the box body, and the output shaft of the driver is fixed to the driving shaft.

[0009] Furthermore, the rotating frame is circumferentially distributed with a plurality of rotating grooves, each of which is provided with a lifting frame, the filter is fixed to a side of the lifting frame away from the sleeve, lifting guide rails are provided on both sides of the rotating groove, and the lifting frame is slidably connected to the lifting guide rails.

[0010] Furthermore, a guide groove is provided on the bottom surface of the accommodating groove, a through groove is provided on one side of the rotating groove, a guide rod is fixed on one side of the lifting frame, and one end of the guide rod passes through the through groove and then extends into the guide groove.

[0011] Furthermore, the guide groove includes a first arc groove and a second arc groove, the radius of the first arc groove is greater than the radius of the second arc groove, and connecting grooves are connected between the two ends of the first arc groove and the two ends of the second arc groove, the water inlet and the water outlet both correspond to the position of the first arc groove, and the drain outlet corresponds to the position of the second arc groove.

[0012] An automatic control method for a self-cleaning mesh filter for agricultural irrigation includes a control system, a flow sensor is arranged in a water outlet, a water inlet is connected to a water supply device, and a water outlet is connected to an irrigation device. The irrigation device, the water supply device, the flow sensor, the driver and the valve are all connected to the control system, and an irrigation system and a fertilization system are arranged in the control system.

[0013] Furthermore, when the irrigation system is in operation, the moving block overlaps with the positions of the water inlet pipe, the water outlet pipe and the drain pipe, the water supply equipment is started, and the irrigation water is transmitted to the irrigation equipment through the box. At the same time, the valve is closed, and the flow sensor is used to detect the flow of the irrigation water at the water outlet; a flow threshold of the irrigation water at the water outlet is set in the control system. When the irrigation water flow at the water outlet is lower than the flow threshold, the driver is started, driving the rotating frame to rotate, so that the water inlet, the water outlet and the drain are all switched to another rotating slot, and the valve is opened at the same time; when the water inlet, the water outlet and the drain are all switched to another rotating slot, the valve is closed.

[0014] Furthermore, when the fertilization system is in operation, the telescopic rod drives the moving block to be staggered with the water inlet pipe, the water outlet pipe and the drain pipe, the valve is closed, the water supply equipment is started, and the fertilizer water is transported to the irrigation equipment through the box. At this time, the fertilizer water is directly transported to the irrigation equipment through the box.

[0015] The beneficial effects of the present invention are:

[0016] When the irrigation system is running, since the valve is open and the height of the drain port is lower than that of the water outlet, the irrigation water will flow out from the drain port first. At this time, the irrigation water will backwash the filter at the drain port, flushing away the impurities on the filter and discharging them from the drain pipe, thus achieving the effect of self-cleaning the filter and enabling the filter to be recycled.

[0017] When the fertilization system is running, since the moving block is staggered with the water inlet pipe, outlet pipe and drain pipe, the fertilizer water can be directly transported to the irrigation equipment through the box. Due to the departure of the filter, the fertilizer particles in the fertilizer water can be prevented from being blocked, thereby preventing the fertilizer irrigation effect from being reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0019] Figure 1 This is an overall schematic diagram of a self-cleaning mesh filter for agricultural irrigation in this application;

[0020] Figure 2 for Figure 1 A schematic diagram of an exploded view of a self-cleaning mesh filter for agricultural irrigation;

[0021] Figure 3 for Figure 2 A schematic diagram of the working state of a self-cleaning mesh filter for agricultural irrigation Figure 1 ;

[0022] Figure 4 for Figure 2 A schematic diagram of the working state of a self-cleaning mesh filter for agricultural irrigation Figure 2 ;

[0023] Figure 5 for Figure 2 Structural schematic diagram of the middle guide groove;

[0024] Figure 6 for Figure 2 The structural diagram of the rotating frame;

[0025] Figure 7 for Figure 6 The enlarged schematic diagram of point A in the middle;

[0026] In the figure:

[0027] 1. Box body; 11. First guide rail; 12. Telescopic rod; 13. Driving shaft; 14. Driver; 15. Water inlet pipe; 16. Water outlet pipe; 17. Drain pipe; 171. Valve;

[0028] 2. Moving block; 21. Accommodating groove; 22. Guide groove; 221. First arc groove; 222. Second arc groove; 223. Connecting groove; 23. Water inlet; 24. Water outlet; 25. Drainage outlet;

[0029] 3. Rotating frame; 31. Bushing; 32. Rotating slot; 321. Lifting guide rail; 322. Through slot; 33. Lifting frame; 331. Filter screen; 332. Guide rod. DETAILED DESCRIPTION

[0030] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application may be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0031] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0032] In the present invention, unless otherwise specified, the directions used, such as "up" and "down", usually refer to the directions shown in the drawings, or to the vertical, perpendicular or gravity directions; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directions are not used to limit the present invention.

[0033] like Figure 1-7 As shown, the present application provides a self-cleaning mesh filter for agricultural irrigation, including a box body 1, a moving block 2 is arranged inside the box body 1, a circular receiving groove 21 is arranged on one side of the moving block 2, and a circular rotating frame 3 is rotatably arranged in the receiving groove 21.

[0034] A plurality of first guide rails 11 are fixed to the inner wall of the box body 1 . The length direction of the first guide rails 11 is parallel to the rotation axis of the rotating frame 3 . The moving block 2 is slidably connected to the first guide rails 11 .

[0035] A plurality of telescopic rods 12 are fixed to one side of the outer wall of the box body 1 , and the output rods of the telescopic rods 12 extend into the interior of the box body 1 and are fixed to one side of the moving block 2 .

[0036] A driving shaft 13 is rotatably connected between the two ends inside the box body 1, a shaft sleeve 31 is fixed at the rotation center of the rotating frame 3, and the shaft sleeve 31 is slidably sleeved on the driving shaft 13. A driver 14 is fixed to one side outside the box body 1. In this embodiment, the driver 14 is a motor, and the output shaft of the driver 14 is fixed to the driving shaft 13.

[0037] The rotating frame 3 is circumferentially provided with a plurality of rotating grooves 32 , each of which is provided with a lifting frame 33 , and a filter screen 331 is fixed on a side of the lifting frame 33 away from the shaft sleeve 31 .

[0038] Lifting guide rails 321 are disposed on both sides of the rotating groove 32 , and the lifting frame 33 is slidably connected to the lifting guide rails 321 .

[0039] A guide groove 22 is provided on the bottom surface of the accommodating groove 21, and the guide groove 22 includes a first arc groove 221 and a second arc groove 222. The second arc groove 222 is located at the lower side of the first arc groove 221. The radius of the first arc groove 221 is greater than the radius of the second arc groove 222. A connecting groove 223 is connected between the two ends of the first arc groove 221 and the two ends of the second arc groove 222.

[0040] A through slot 322 is provided on one side of the rotating slot 32 , a guide rod 332 is fixed on one side of the lifting frame 33 , and one end of the guide rod 332 passes through the through slot 322 and then extends into the guide slot 22 .

[0041] The two sides of the moving block 2 are respectively provided with a water inlet 23 and a water outlet 24, and the lower side of the moving block 2 is provided with a drain 25. The water inlet 23, the water outlet 24 and the drain 25 are respectively aligned with a rotating groove 32. The water inlet 23 and the water outlet 24 correspond to the positions of the first arc groove 221, and the drain 25 corresponds to the position of the second arc groove 222. The outer side of the box body 1 is fixed with a water inlet pipe 15, a water outlet pipe 16 and a drain pipe 17. The water inlet pipe 15, the water outlet pipe 16 and the drain pipe 17 correspond to the positions of the water inlet 23, the water outlet 24 and the drain 25, respectively.

[0042] A valve 171 is provided in the drain pipe 17 .

[0043] By extending and retracting the telescopic rod 12, the moving block 2 can be driven to move in the box 1, so that the moving block 2 overlaps with the water inlet pipe 15, the water outlet pipe 16 and the drain pipe 17, or the moving block 2 leaves the water inlet pipe 15, the water outlet pipe 16 and the drain pipe 17.

[0044] An automatic control method for a self-cleaning mesh filter for agricultural irrigation includes a control system, a flow sensor is arranged in a water outlet 24, a water inlet 23 is connected to a water supply device, and the water outlet 24 is connected to an irrigation device. The irrigation device, the water supply device, the flow sensor, the driver 14 and the valve 171 are all connected to the control system, and an irrigation system and a fertilization system are arranged in the control system.

[0045] When the irrigation system is running, the moving block 2 overlaps with the water inlet pipe 15, the water outlet pipe 16 and the drain pipe 17, the water supply equipment is started, and the irrigation water is transmitted to the irrigation equipment through the box 1. At the same time, the valve 171 is closed, and the flow sensor is used to detect the flow of the irrigation water at the water outlet 24; the control system is set with a flow threshold of the irrigation water at the water outlet 24. When the irrigation water flow at the water outlet 24 is lower than the flow threshold, the driver 14 is started, driving the rotating frame 3 to rotate, so that the water inlet 23, the water outlet 24 and the drain 25 are all switched to another rotating groove 32, and the valve 171 is opened; when the water inlet 23, the water outlet 24 and the drain 25 are all switched to another rotating groove 32, the valve 171 is closed.

[0046] In the above process, when the water supply equipment transmits irrigation water to the irrigation equipment, impurities in the irrigation water are filtered out through the filter 331 at the water outlet 24. When the irrigation water flow at the water outlet 24 is too small, it means that most of the filter holes of the filter 331 at the water outlet 24 have been blocked.

[0047] When the driver 14 is started, the filter screens 331 at the water inlet 23, the water outlet 24 and the drain outlet 25 can be replaced by rotating the rotating frame 3, so that the filter screen 331 at the water inlet 23 can be replaced with an unblocked filter screen 331, so that when the water supply equipment is restored to supply water to the irrigation equipment, filtering can continue, avoiding the process of disassembling the machine to clean the filter screen 331 in the prior art.

[0048] When the driver 14 is started, the filter 331 blocked at the water inlet 23 will move toward the drain outlet 25, so the filter 331 blocked by impurities will be replaced at the drain outlet 25. When the valve 171 is opened, since the height of the drain outlet 25 is lower than the height of the water outlet 24, the irrigation water will flow out from the drain outlet 25 first. At this time, the irrigation water will backwash the filter 331 at the drain outlet 25, flush away the impurities on the filter 331, and discharge it from the drain pipe 17, thereby achieving the effect of self-cleaning the filter 331 and allowing the filter 331 to be recycled.

[0049] Guided by the guide rods 332 of the guide grooves 22, the lifting frame 33 drives the filter screen 331 to move in the rotating groove 32 while the rotating frame 3 rotates. The first arc groove 221 makes the filter screen 331 located at one end of the rotating groove 32 close to the sleeve 31, so that there is a gap between the filter screen 331 and the inner wall of the receiving groove 21, so that when the filter screen 331 moves from the water inlet 23 to the drain outlet 25, the rotating groove 32 can take away all the impurities inside the filter screen, avoiding the situation where the inner wall of the water inlet 23 scrapes off the impurities on the filter screen 331, so as to ensure that the impurities are cleaned up; the second arc groove 222 makes the filter screen 331 located at one end of the rotating groove 32 away from the sleeve 31, so that the filter screen 331 will fit with the inner wall of the receiving groove 21, so that when the filter screen 331 leaves the drain outlet 25, the inner wall of the drain outlet 25 will scrape the filter screen 331, and then scrape away the impurities on the filter screen 331 that have not been backwashed away, thereby improving the cleaning effect.

[0050] When the fertilization system is in operation, the telescopic rod 12 drives the moving block 2 to be staggered with the water inlet pipe 15, the water outlet pipe 16 and the drain pipe 17, the valve 171 is closed, the water supply equipment is started, and the fertilizer water is transported to the irrigation equipment through the box 1. At this time, the fertilizer water can be directly transported to the irrigation equipment through the box 1. Due to the departure of the filter 331, the fertilizer particles in the fertilizer water can be prevented from being blocked, and the fertilizer irrigation effect can be prevented from being reduced. After the fertilizer water irrigation is completed, the water supply equipment starts to transport clean water, and at the same time the valve 171 is opened to discharge the fertilizer water remaining in the box 1, and the remaining fertilizer particles are rinsed with clean water. Finally, the valve 171 and the water supply equipment are closed, and the telescopic rod 12 drives the moving block 2 to reset.

[0051] Obviously, the embodiments described above are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0052] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0053] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0054] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

[0055] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A self-cleaning mesh filter for agricultural irrigation, characterized in that: The invention comprises a box body (1), wherein a moving block (2) is arranged inside the box body (1), wherein the moving block (2) is suitable for moving inside the box body (1), wherein a circular receiving groove (21) is arranged on one side of the moving block (2), wherein a ring-shaped rotating frame (3) is rotatably arranged inside the receiving groove (21), wherein the rotating frame (3) has a plurality of rotating grooves (32) distributed in the circumferential direction, wherein a filter screen (331) is arranged inside the rotating groove (32), and wherein a water inlet (23), a water outlet (24) and a water discharge outlet (25) are arranged on the moving block (2). ), the water inlet (23), the water outlet (24) and the drain outlet (25) are respectively aligned with a rotating groove (32); a water inlet pipe (15), a water outlet pipe (16) and a drain pipe (17) are fixed to the outside of the box body (1); the water inlet pipe (15), the water outlet pipe (16) and the drain pipe (17) correspond to the positions of the water inlet (23), the water outlet (24) and the drain outlet (25) respectively; a valve (171) is provided in the drain pipe (17); and the height of the water outlet pipe (16) is higher than that of the drain pipe (17); A plurality of first guide rails (11) are fixed to the inner wall of the box body (1), the length direction of the first guide rails (11) is parallel to the rotation axis of the rotating frame (3), the moving block (2) is slidably connected to the first guide rails (11), and a plurality of telescopic rods (12) are fixed to one side of the outer wall of the box body (1), and the output rods of the telescopic rods (12) extend into the interior of the box body (1) and are fixed to one side of the moving block (2).

2. A self-cleaning mesh filter for agricultural irrigation according to claim 1, characterized in that: A driving shaft (13) is rotatably connected between the two ends of the box body (1), a shaft sleeve (31) is fixed at the rotation center of the rotating frame (3), and the shaft sleeve (31) is slidably sleeved on the driving shaft (13). A driver (14) is fixed on one side of the outside of the box body (1), and an output shaft of the driver (14) is fixed to the driving shaft (13).

3. The self-cleaning mesh filter for agricultural irrigation according to claim 1, characterized in that: The rotating frame (3) is provided with a plurality of rotating grooves (32) distributed in the circumference, and a lifting frame (33) is provided inside each of the rotating grooves (32). The filter screen (331) is fixed to a side of the lifting frame (33) away from the shaft sleeve (31), and lifting guide rails (321) are provided on both sides of the rotating groove (32), and the lifting frame (33) is slidably connected to the lifting guide rails (321).

4. A self-cleaning mesh filter for agricultural irrigation according to claim 3, characterized in that: A guide groove (22) is provided on the bottom surface of the accommodating groove (21), a through groove (322) is provided on one side of the rotating groove (32), a guide rod (332) is fixed on one side of the lifting frame (33), and one end of the guide rod (332) passes through the through groove (322) and then extends into the guide groove (22).

5. The self-cleaning mesh filter for agricultural irrigation according to claim 4, characterized in that: The guide groove (22) comprises a first arc groove (221) and a second arc groove (222); the radius of the first arc groove (221) is greater than the radius of the second arc groove (222); a connecting groove (223) is connected between the two ends of the first arc groove (221) and the two ends of the second arc groove (222); the water inlet (23) and the water outlet (24) both correspond to the positions of the first arc groove (221); and the water outlet (25) corresponds to the position of the second arc groove (222).

6. An automatic control method for a self-cleaning mesh filter for agricultural irrigation, comprising any one of claims 2 to 5, characterized in that: The invention comprises a control system, wherein a flow sensor is arranged in a water outlet (24), a water inlet (23) is connected to a water supply device, and an irrigation device is connected to the water outlet (24). The irrigation device, the water supply device, the flow sensor, the driver (14) and the valve (171) are all connected to the control system, and an irrigation system and a fertilization system are arranged in the control system.

7. The automatic control method of a self-cleaning screen filter for agricultural irrigation according to claim 6, characterized in that: When the irrigation system is in operation, the moving block (2) overlaps with the water inlet pipe (15), the water outlet pipe (16) and the drainage pipe (17), the water supply device is started, and the irrigation water is transmitted to the irrigation device through the box (1). At the same time, the valve (171) is closed, and the flow sensor is used to detect the flow rate of the irrigation water at the water outlet (24); a flow rate threshold of the irrigation water at the water outlet (24) is set in the control system. When the irrigation water flow rate at the water outlet (24) is lower than the flow rate threshold, the driver (14) is started to drive the rotating frame (3) to rotate, so that the water inlet (23), the water outlet (24) and the drainage outlet (25) are all switched to another rotating groove (32), and the valve (171) is opened at the same time; when the water inlet (23), the water outlet (24) and the drainage outlet (25) are all switched to another rotating groove (32), the valve (171) is closed.

8. The automatic control method of a self-cleaning screen filter for agricultural irrigation according to claim 6, characterized in that: When the fertilization system is in operation, the telescopic rod (12) drives the moving block (2) to be offset from the water inlet pipe (15), the water outlet pipe (16) and the drainage pipe (17), the valve (171) is closed, the water supply device is started, and the fertilizer water is transported to the irrigation device through the box (1). At this time, the fertilizer water is directly transported to the irrigation device through the box (1).

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