Self-cleaning mesh filter for agricultural irrigation and automatic control method therefor

Abstract

The present invention belongs to the technical field of filters. Disclosed are a self-cleaning mesh filter for agricultural irrigation and an automatic control method therefor. The filter mainly comprises a box body. A moving block is disposed in the interior of the box body, and the moving block is suitable for moving within the box body. A circular accommodating recess is arranged on one side of the moving block. An annular rotating frame is rotatably disposed within the accommodating recess, a plurality of rotating slots are circumferentially distributed on the rotating frame, and a filter screen is provided in each rotating slot. A water inlet, a water outlet, and a drainage outlet are provided on the moving block, and the water inlet, the water outlet, and the drainage outlet are each aligned with one rotating slot. A water intake pipe, a water discharge pipe, and a drainage pipe are fixed on the outside of the box body, and the water intake pipe, the water discharge pipe, and the drainage pipe correspond to the positions of the water inlet, the water outlet, and the drainage outlet, respectively. A valve is disposed within the drainage pipe, and the height of the water discharge pipe is higher than that of the drainage pipe. The self-cleaning mesh filter for agricultural irrigation and the automatic control method therefor of the present application achieve the effect of allowing fertilizer particles to pass through.

Description

Self-cleaning screen filter for agricultural irrigation and automatic control method thereof TECHNICAL FIELD

[0001] The present application relates to the technical field of filter, more particularly, it relates to a self-cleaning screen filter for agricultural irrigation and an automatic control method thereof. BACKGROUND

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

[0003] However, when the air temperature is too low or too little clean water is added during deployment, the fertilizer will not be fully dissolved, and the fertilizer particles in the fertilizer water will be filtered out by the filter, thereby causing insufficient fertilizer spraying and affecting vegetable growth due to insufficient nutrients.

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

[0005] SUMMARY

[0006] 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 screen filter for agricultural irrigation and an automatic control method thereof, so that the fertilizer particles can pass through.

[0007] The technical scheme adopted by the present application to solve the technical problems is: a self-cleaning screen 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 adapted to move 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 circumferentially distributed 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 one rotating groove, a water inlet pipe, a water outlet pipe and a drain pipe are fixed outside the box body, the water inlet pipe, the water outlet pipe and the drain pipe are respectively corresponding to the position of the water inlet, the water outlet and the drain, a valve is arranged in the drain pipe, and the height of the water outlet pipe is higher than that of the drain pipe.

[0008] Further, a plurality of first guide rails are fixed on the inner wall of the box body, the length direction of the first guide rail is parallel to the rotation axis of the rotating frame, the moving block is slidably connected with the first guide rail, a plurality of telescopic rods are fixed on one side of the outer wall of the box body, and the output rod of the telescopic rod is fixed to one side of the moving block after extending into the inside of the box body.

[0009] Further, the box is rotatably connected with a driving shaft between two ends inside the box, the rotating center of the rotating frame is fixed with a shaft sleeve, the shaft sleeve is slidably sleeved on the driving shaft, one side of the box is fixed with a driver, and the output shaft of the driver is fixed with the driving shaft.

[0010] Further, the rotating frame is circumferentially provided with a plurality of rotating grooves, the inside of the rotating groove is provided with a lifting frame, the filter screen is fixed to the side of the lifting frame away from the shaft sleeve, and the two sides of the rotating groove are provided with lifting rails.

[0011] Further, the bottom surface of the accommodating groove is provided with a guide groove, one side of the rotating groove is provided with a through groove, one side of the lifting frame is fixed with a guide rod, and one end of the guide rod extends into the guide groove after penetrating through the through groove.

[0012] Further, the guide groove comprises a first arc-shaped groove and a second arc-shaped groove, the radius of the first arc-shaped groove is greater than that of the second arc-shaped groove, the two ends of the first arc-shaped groove and the two ends of the second arc-shaped groove are connected with a connecting groove, the water inlet and the water outlet are positionally corresponding to the first arc-shaped groove, and the drain is positionally corresponding to the second arc-shaped groove.

[0013] An automatic control method of a self-cleaning net filter for agricultural irrigation comprises a control system, a flow sensor is arranged in the water outlet, a water supply device is connected with the water inlet, an irrigation device is connected with the water outlet, the irrigation device, the water supply device, the flow sensor, a driver and a valve are connected with the control system, and an irrigation system and a fertilization system are arranged in the control system.

[0014] Further, when the irrigation system is running, the moving block is positionally overlapped with the water inlet pipe, the water outlet pipe and the drain pipe, the water supply device is started, irrigation water is transported to the irrigation device through the box, at the same time, the valve is closed, and the flow sensor is used for detecting the flow of the irrigation water at the water outlet; the control system is provided with a flow threshold value of the irrigation water at the water outlet, when the flow of the irrigation water at the water outlet is lower than the flow threshold value, the driver is started to drive the rotating frame to rotate, so that the water inlet, the water outlet and the drain are switched to another rotating groove, at the same time, the valve is opened; when the water inlet, the water outlet and the drain are switched to another rotating groove, the valve is closed.

[0015] Further, when the fertilization system is running, the telescopic rod drives the moving block to be positionally disengaged with the water inlet pipe, the water outlet pipe and the drain pipe, the valve is closed, the water supply device is started, fertilizer water is transported to the irrigation device through the box, and at this time, the fertilizer water is directly transported to the irrigation device through the box.

[0016] The beneficial effects of the present application are:

[0017] When the irrigation system is running, due to the opening of the valve and the lower height of the drain outlet than the water outlet, the irrigation water will flow out from the drain outlet first, at this time, the irrigation water will reverse flush the filter screen at the drain outlet, and the impurities on the filter screen will be washed away and discharged from the drain pipe, thereby achieving the effect of self-cleaning filter screen, so that the filter screen can be recycled.

[0018] When the fertilization system is running, due to the position offset of the moving block and the water inlet pipe, the water outlet pipe and the drain pipe, the fertilizer water can be directly transported to the irrigation equipment through the box, and due to the departure of the filter screen, the fertilizer particles in the fertilizer water can be avoided to be blocked, and the fertilizer irrigation effect can be avoided to be reduced. BRIEF DESCRIPTION OF DRAWINGS

[0019] The drawings accompanying the specification of this application form a part thereof, serve to provide further understanding of the application, and together with the description of the exemplary embodiments of the application given below, explain the application, and do not constitute an improper limitation of the application. In the drawings:

[0020] Fig. 1 is a whole schematic view of a self-cleaning screen filter for agricultural irrigation in the present application;

[0021] Fig. 2 is an exploded schematic view of a self-cleaning screen filter for agricultural irrigation in Fig. 1;

[0022] Fig. 3 is a working state schematic view one of a self-cleaning screen filter for agricultural irrigation in Fig. 2;

[0023] Fig. 4 is a working state schematic view two of a self-cleaning screen filter for agricultural irrigation in Fig. 2;

[0024] Fig. 5 is a structural schematic view of a guide groove in Fig. 2;

[0025] Fig. 6 is a structural schematic view of a rotating frame in Fig. 2;

[0026] Fig. 7 is an enlarged schematic view of A in Fig. 6;

[0027] In the drawings: 1, box; 11, first guide rail; 12, telescopic rod; 13, drive shaft; 14, driver; 15, water inlet pipe; 16, water outlet pipe; 17, drain pipe; 171, valve; 2, moving block; 21, containing groove; 22, guide groove; 221, first arc-shaped groove; 222, second arc-shaped groove; 223, connecting groove; 23, water inlet; 24, water outlet; 25, drain outlet; 3, rotating frame; 31, shaft sleeve; 32, rotating groove; 321, lifting guide rail; 322, through groove; 33, lifting frame; 331, filter screen; 332, guide rod. DETAILED DESCRIPTION

[0028] It should be noted that the embodiments and features in the embodiments of the present application can be combined with each other in the case of no conflict. The present application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0029] It should be noted that all technical and scientific terms used in the present application have the same meaning as generally understood by those skilled in the art to which the present application belongs, unless otherwise specified.

[0030] In the present application, unless otherwise specified, the orientation such as "up, down" is generally directed to the direction shown in the drawings, or is directed to the vertical, perpendicular or gravity direction; similarly, for the convenience of understanding and description, "left, right" is generally directed to the left and right shown in the drawings; "inner, outer" refers to the inner and outer relative to the contour of each component itself, but the above orientation words are not used to limit the present application.

[0031] As shown in FIGS. 1-7, the present application provides a self-cleaning mesh filter for agricultural irrigation, comprising a box body 1, a moving block 2 is arranged inside the box body 1, a circular containing groove 21 is arranged on one side of the moving block 2, and a circular ring-shaped rotating frame 3 is rotatably arranged in the containing groove 21.

[0032] 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, and the moving block 2 is slidably connected with the first guide rails 11.

[0033] A plurality of extension rods 12 are fixed to one side of the outer wall of the box body 1, and the output rod of the extension rod 12 extends into the inside of the box body 1 and is fixed to one side of the moving block 2.

[0034] A driving shaft 13 is rotatably connected between the two ends inside the box body 1, an axle sleeve 31 is fixed to the rotation center of the rotating frame 3, the axle sleeve 31 is slidably sleeved on the driving shaft 13, a driver 14 is fixed to one side outside the box body 1, in the present embodiment, the driver 14 is a motor, and the output shaft of the driver 14 is fixed with the driving shaft 13.

[0035] A plurality of rotating grooves 32 are circumferentially distributed on the rotating frame 3, and a lifting frame 33 is arranged inside each rotating groove 32.

[0036] Lifting guide rails 321 are arranged on both sides of the rotating groove 32, and the lifting frame 33 is slidably connected with the lifting guide rails 321.

[0037] The bottom surface of the accommodating groove 21 is provided with a guide groove 22, the guide groove 22 comprises a first arc-shaped groove 221 and a second arc-shaped groove 222, the second arc-shaped groove 222 is located at the lower side of the first arc-shaped groove 221, the radius of the first arc-shaped groove 221 is greater than the radius of the second arc-shaped groove 222, and the two ends of the first arc-shaped groove 221 and the two ends of the second arc-shaped groove 222 are connected with a connecting groove 223.

[0038] One side of the rotating groove 32 is provided with a through groove 322, one side of the lifting frame 33 is fixed with a guide rod 332, one end of the guide rod 332 extends into the guide groove 22 after penetrating through the through groove 322.

[0039] The two sides of the moving block 2 are respectively provided with a water inlet 23 and a water outlet 24, the lower side of the moving block 2 is provided with a drain port 25, the water inlet 23, the water outlet 24 and the drain port 25 are respectively aligned with a rotating groove 32, the water inlet 23 and the water outlet 24 are positionally corresponding to the first arc-shaped groove 221, and the drain port 25 is positionally corresponding to the second arc-shaped groove 222. The water inlet pipe 15, the water outlet pipe 16 and the drain pipe 17 are fixed outside the box body 1 and positionally correspond to the water inlet 23, the water outlet 24 and the drain port 25.

[0040] The drain pipe 17 is provided with a valve 171.

[0041] Through the extension and retraction of the telescopic rod 12, the moving block 2 can be moved in the box body 1, so that the moving block 2 is overlapped with the water inlet pipe 15, the water outlet pipe 16 and the drain pipe 17, or the moving block 2 is away from the positions of the water inlet pipe 15, the water outlet pipe 16 and the drain pipe 17.

[0042] An automatic control method of a self-cleaning mesh filter for agricultural irrigation, comprising a control system, a flow sensor is arranged in the water outlet 24, the water inlet 23 is connected with a water supply device, the water outlet 24 is connected with an irrigation device, the irrigation device, the water supply device, the flow sensor, the driver 14 and the valve 171 are connected with the control system, and the control system is provided with an irrigation system and a fertilization system.

[0043] When the irrigation system is running, the moving block 2 is overlapped with the water inlet pipe 15, the water outlet pipe 16 and the drain pipe 17, the water supply device is started, the irrigation water is transported to the irrigation device through the box body 1, and at the same time the valve 171 is closed, and the flow sensor is used for detecting the flow of the irrigation water at the water outlet 24; the control system is provided with a flow threshold of the irrigation water at the water outlet 24, when the flow of the irrigation water at the water outlet 24 is lower than the flow 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 drain port 25 are switched to another rotating groove 32, and at the same time the valve 171 is opened; when the water inlet 23, the water outlet 24 and the drain port 25 are switched to another rotating groove 32, the valve 171 is closed.

[0044] In the above process, when the water supply device supplies irrigation water to the irrigation device, the impurities in the irrigation water are filtered out through the filter screen 331 at the water outlet 24. When the flow of irrigation water at the water outlet 24 is too small, it indicates that most of the filter holes of the filter screen 331 at the water outlet 24 have been blocked.

[0045] When the driver 14 is started, the filter screen 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 is replaced by a filter screen 331 that is not blocked, so that filtering can continue when the water supply device resumes supplying water to the irrigation device, avoiding the need to disassemble the filter screen 331 for cleaning in the prior art.

[0046] When the driver 14 is started, the filter screen 331 at the water inlet 23 is moved to the drain outlet 25, so that the filter screen 331 at the drain outlet 25 is replaced by a filter screen 331 blocked by impurities. When the valve 171 is opened, because the height of the drain outlet 25 is lower than the height of the water outlet 24, irrigation water will flow out of the drain outlet 25 first. At this time, the irrigation water will perform reverse flushing on the filter screen 331 at the drain outlet 25, washing away the impurities on the filter screen 331, and then being discharged from the drain pipe 17, thereby achieving the effect of self-cleaning of the filter screen 331, so that the filter screen 331 can be recycled.

[0047] The guide rod 332 is guided by the guide groove 22 pair, so that the rotating frame 3 rotates while the lifting frame 33 moves the filter screen 331 in the rotating groove 32. The first arc-shaped groove 221 allows the filter screen 331 to be located at one end of the rotating groove 32 close to the shaft sleeve 31, so that there is a gap between the filter screen 331 and the inner wall of the containing groove 21, facilitating the filter screen 331 to move from the water inlet 23 to the drain outlet 25. The rotating groove 32 can carry all the impurities inside the device, avoiding the situation that the inner wall of the water inlet 23 scrapes the impurities on the filter screen 331, to ensure that the impurities are cleaned completely; the second arc-shaped groove 222 allows the filter screen 331 to be located at one end of the rotating groove 32 away from the shaft sleeve 31, so that the filter screen 331 will be attached to the inner wall of the containing 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, thereby scraping away the impurities on the filter screen 331 that have not been washed away by reverse flushing, improving the cleaning effect.

[0048] When the fertilization system is running, 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 device is started, and the fertilizer water is transported to the irrigation device through the box 1, at this time, the fertilizer water can be directly transported to the irrigation device through the box 1. Because the filter screen 331 is away, 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 device starts to transport clean water, at the same time, the valve 171 is opened, the residual fertilizer water in the box 1 is discharged, and the residual fertilizer particles are washed clean by using the clean water, finally, the valve 171 and the water supply device are closed, and the telescopic rod 12 drives the moving block 2 to reset.

[0049] Obviously, the above-described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor should belong to the protection scope of the present application.

[0050] It should be noted that the terms used herein are only intended to describe specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. As used herein, the singular form is intended to include the plural form, unless the context clearly indicates otherwise, and it should also be understood that, when the terms "comprise" and / or "include" are used in the specification, there is a feature, step, work, device, component and / or combination thereof.

[0051] It should be noted that the terms "first", "second" and the like in the specification and claims of the present application and the above-described drawings are used to distinguish similar objects, and do not necessarily indicate a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0052] The above only describes the preferred embodiments of the present application, and is not intended to limit the present application. For those skilled in the art, the present application can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

[0053] The above only describes the preferred embodiments of the present application, and the protection scope of the present application is not limited to the above-described embodiments. Any technical solutions belonging to the technical solutions under the concept of the present application should belong to the protection scope of the present application. It should be noted that, for ordinary skilled in the art, some improvements and refinements without departing from the principles of the present application should also be considered as the protection scope of the present application.

Claims

1. A self-cleaning screen filter for agricultural irrigation, characterized by: The utility model provides a filter device, including box (1), the inside of box (1) is provided with moving block (2), moving block (2) is suitable for moving in box (1), one side of moving block (2) is provided with circular accommodating groove (21), circular annular rotating frame (3) is rotationally arranged in accommodating groove (21), rotating frame (3) is circumferentially distributed with a plurality of rotating grooves (32), filter screen (331) is arranged in rotating groove (32), inlet (23), outlet (24) and drain (25) are arranged on moving block (2), inlet (23), outlet (24) and drain (25) are respectively aligned with a rotating groove (32), inlet pipe (15), outlet pipe (16) and drain pipe (17) are fixed outside box (1), inlet pipe (15), outlet pipe (16) and drain pipe (17) are respectively corresponding with the position of inlet (23), outlet (24) and drain (25), valve (171) is arranged in drain pipe (17), the height of outlet pipe (16) is higher than drain pipe (17).

2. A self-cleaning screen filter for agricultural irrigation according to claim 1, characterized in that: The inner wall of the box (1) is fixed with a plurality of first guide rails (11), the length direction of the first guide rail (11) is parallel to the rotation axis of the rotating frame (3), the moving block (2) is slidably connected with the first guide rail (11), and the outer wall of the box (1) is fixed with a plurality of telescopic rods (12). The output rod of the telescopic rod (12) extends into the interior of the box (1) and is fixed to one side of the moving block (2).

3. A self-cleaning screen filter for agricultural irrigation according to claim 1, characterized in that: The driving shaft (13) is rotationally connected between the two ends of the box (1), the shaft sleeve (31) is fixed at the center of the rotating frame (3), the shaft sleeve (31) is slidably sleeved on the driving shaft (13), and the driving device (14) is fixed on one side of the box (1). The output shaft of the driving device (14) is fixed with the driving shaft (13).

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

5. A self-cleaning screen filter for agricultural irrigation according to claim 4, wherein: The bottom surface of the accommodating groove (21) is provided with a guide groove (22), one side of the rotating groove (32) is provided with a through groove (322), one side of the lifting frame (33) is fixed with a guide rod (332), and one end of the guide rod (332) penetrates through the through groove (322) and extends into the guide groove (22).

6. A self-cleaning screen filter for agricultural irrigation according to claim 5, wherein: The guide groove (22) comprises a first arc-shaped groove (221) and a second arc-shaped groove (222), the radius of the first arc-shaped groove (221) is greater than that of the second arc-shaped groove (222), a connecting groove (223) is connected between the two ends of the first arc-shaped groove (221) and the two ends of the second arc-shaped groove (222), the water inlet (23) and the water outlet (24) are in position correspondence with the first arc-shaped groove (221), and the drain port (25) is in position correspondence with the second arc-shaped groove (222).

7. An automatic control method of the self-cleaning screen filter for agricultural irrigation according to any one of claims 1 to 6, characterized by: The control system is provided with a flow sensor in the water outlet (24), the water inlet (23) is connected with a water supply device, the water outlet (24) is connected with an irrigation device, the irrigation device, the water supply device, the flow sensor, the driver (14) and the valve (171) are connected with the control system, and the control system is provided with an irrigation system and a fertilization system.

8. The automatic control method of a self-cleaning screen filter for agricultural irrigation according to claim 7, characterized in that: When the irrigation system is running, the moving block (2) is in position overlap with the water inlet pipe (15), the water outlet pipe (16) and the drain pipe (17), the water supply device is started, the irrigation water is transported to the irrigation device through the box (1), and the valve (171) is closed, and the flow sensor is used for detecting the flow of the irrigation water at the water outlet (24); the control system is provided with a flow threshold value of the irrigation water at the water outlet (24), when the flow of the irrigation water at the water outlet (24) is lower than the flow threshold value, the driver (14) is started, the rotating frame (3) is rotated, the water inlet (23), the water outlet (24) and the drain port (25) are switched to another rotating groove (32), and the valve (171) is opened; when the water inlet (23), the water outlet (24) and the drain port (25) are switched to another rotating groove (32), the valve (171) is closed.

9. The automatic control method of a self-cleaning screen filter for agricultural irrigation according to claim 7, characterized in that: When the fertilization system is running, the telescopic rod (12) drives the moving block (2) to be out of position with the water inlet pipe (15), the water outlet pipe (16) and the drain pipe (17), the valve (171) is closed, the water supply device is started, the fertilizer water is transported to the irrigation device through the box (1), and the fertilizer water is directly transported to the irrigation device through the box (1).

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