Under-mulch drip irrigation cotton water and fertilizer precision regulation and control device

Abstract

The utility model relates to the technical field of drip irrigation, and discloses an under-mulch drip irrigation cotton water and fertilizer precision regulation and control device which comprises a regulation and control pipe in a Z shape. The flow speed regulation and control assembly comprises a first regulation and control valve and a second regulation and control valve; the filtering assembly comprises a filtering box, and the filtering box is communicated with the regulation and control pipe; the filter screen unit is arranged in a cavity of the filter box and the regulation and control pipe, and the filter screen unit comprises a first filter screen and a second filter screen. The regulation and control pipe is arranged to be in a Z shape, water flow enters from the water inlet in the high position and flows out from the water outlet in the low position through the filtering assembly at the corner, the Z shape facilitates arrangement of the filtering assembly, later maintenance and cleaning are more convenient, and the flow speed of a water and fertilizer solution passing through the regulation and control pipe can be controlled by arranging the flow speed regulation and control assembly; the device has the advantages that regulation and control are convenient, the pipeline is prevented from being blocked, and the filter screen is convenient to disassemble and clean.

Description

Technical Field

[0001] The utility model relates to the technical field of drip irrigation, in particular to a water and fertilizer precision control device for drip irrigation of cotton under film. Background Art

[0002] After searching the prior art, a sub-membrane drip irrigation cotton water and fertilizer precision control device (publication number: CN216567110U) is disclosed, including a base plate, a control unit, a mounting unit, a filter unit and an adjusting pipe; a fixed bracket is installed on the upper surface of the base plate; the control unit includes a first bevel gear, a first rotating shaft, a second bevel gear, a second rotating shaft, a first semicircular plate, a second semicircular plate and a slider, the first rotating shaft is rotatably installed on the lower surface of the upper end of the adjusting pipe, the first rotating shaft is installed on the first rotating shaft, the second rotating shaft is rotatably installed on the side of the adjusting pipe, the second bevel gear is installed on the left end of the second rotating shaft, the second bevel gear and the first bevel gear are meshingly connected, and a slide groove is opened on the inner surface of the adjusting pipe.

[0003] The existing method uses a control unit to adjust the amount of water and fertilizer solution passing through the regulating pipe, thereby adjusting the drip irrigation amount, and uses a filter unit to filter the pipe to prevent particles in the water and fertilizer solution from clogging the regulating pipe. The filter screen of the prior art is installed on one side of the regulating pipe and is disassembled through the second card and the second card slot. However, this method requires the water inlet pipe to be disassembled and cleaned during the disassembly process. The water pipe needs to be disassembled for each cleaning, which is relatively cumbersome. After repeated operations, the sealing between the water pipe and the regulating pipe is reduced.

[0004] Therefore, those skilled in the art provide a device for precise control of water and fertilizer for cotton under-film drip irrigation to solve the problems raised in the above-mentioned background technology. Utility Model Content

[0005] The utility model mainly solves the technical problem of adjusting pipeline filtering and disassembly, and provides a water and fertilizer precise control device for cotton under membrane drip irrigation.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A device for regulating the amount of water and fertilizer for cotton under membrane drip irrigation, comprising: a regulating pipe, the regulating pipe is arranged on the ground, the regulating pipe is in a "Z" shape, and water inlets and water outlets are respectively arranged at two ends of the regulating pipe from high to low; a flow rate regulating component, the flow rate regulating component comprises a first regulating valve and a second regulating valve arranged at the top end of the regulating pipe, the first regulating valve controls the flow rate of the water inlet, and the second regulating valve controls the flow rate of the water outlet; a filter component, the filter component comprises a filter box arranged at the top end of the side wall surface at the corner of the outer wall surface of the regulating pipe, the cross-section of the filter box is a right-angled trapezoid, and the filter box is connected with the regulating pipe; a filter screen unit, the filter screen unit is arranged in the cavity of the filter box and the regulating pipe, and the filter screen unit comprises a first filter screen and a second filter screen.

[0008] According to the sub-membrane drip irrigation cotton water and fertilizer precision control device, the top of the filter box is open, a rectangular block is movably engaged at the top of the filter box, a rubber sealing gasket is bonded and fixed to the outer wall of the rectangular block, a cover plate is fixedly connected to the top of the rectangular block, and a handle is fixedly installed on the top of the cover plate.

[0009] According to the device for precise control of water and fertilizer for cotton under-membrane drip irrigation, both front and rear sides of the first filter screen are fixedly connected with a first frame plate, and both front and rear sides of the second filter screen are fixedly connected with a second frame plate.

[0010] According to the sub-membrane drip irrigation cotton water and fertilizer precision control device, the first filter screen is fixedly connected to the second filter screen at one end close to each other, the first frame plate and the second frame plate are fixedly connected at one side close to each other, and the first filter screen is fixedly connected to an extension plate in a horizontal state at one end away from the second filter screen.

[0011] According to the device for precise control of water and fertilizer for cotton under-membrane drip irrigation, the first filter screen is in a downward tilted state, the second filter screen is in an upward tilted state, and the cross-section of the combination of the first filter screen and the second filter screen is in a "√" shape.

[0012] According to the sub-membrane drip irrigation cotton water and fertilizer precision control device, the first control valve and the second control valve both include a valve body arranged on a control pipe, a valve core is movably engaged in the valve body, a screw is rotatably arranged on the top of the valve core, and an end of the screw away from the valve core movably passes through the top of the valve body and is fixedly connected to a handwheel.

[0013] According to the device for precise control of water and fertilizer for cotton under membrane drip irrigation, an inclined surface is provided on one side wall of the valve core, and the valve core is movably engaged with the control tube cavity during the lifting and lowering process.

[0014] The utility model provides a device for precise control of water and fertilizer for cotton under-film drip irrigation. It has the following beneficial effects:

[0015] (1) By setting the control pipe in a "Z" shape, water flows in from the high water inlet, passes through the filter component at the corner and flows out from the low water outlet. The "Z" shape is convenient for setting the filter component, and later repair and cleaning are more convenient. By setting the flow rate control component, the flow rate of the water fertilizer solution passing through the control pipe can be controlled, which helps to achieve precise control. The device has the advantages of easy control, prevention of pipeline blockage, and easy removal and cleaning of the filter.

[0016] (2) By setting the top of the filter box to be open and bonding and fixing the rubber sealing gasket on the outer wall surface of the rectangular block, the sealing effect of the device can be improved when the rectangular block and the rubber sealing gasket are engaged with the opening at the top of the filter box. A cover plate and a handle are provided to facilitate the staff to lift the rectangular block, which is convenient for subsequent maintenance.

[0017] (3) By setting the first filter and the second filter to be fixedly connected at one end close to each other, the first frame plates on both sides of the first filter and the second frame plates on both sides of the second filter are fixedly connected, so that the first filter and the second filter are combined into a whole. When the water in the control pipe passes through the first filter and the second filter, the particles in the water remain above the second filter and the first filter. Since the first filter is in a downward tilted state and the second filter is in an upward tilted state, the cross-section of the combination of the first filter and the second filter is in a "√" shape, thereby leaving particles or impurities at the junction of the first filter and the second filter. By setting one end of the first filter to be connected to an extension plate, the extension plate is in contact with the wall surface of the control tube cavity. A support plate is provided on the inner wall surface of the control tube below the first frame plate and the second frame plate, so that the first filter and the second filter are firmly engaged and easy to disassemble. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a three-dimensional structural schematic diagram of a water and fertilizer precision control device for cotton under-film drip irrigation according to the utility model;

[0019] Figure 2 This is a schematic diagram of the positional relationship between the filter unit and the control pipe of a water and fertilizer precision control device for cotton under-membrane drip irrigation according to the utility model;

[0020] Figure 3 It is a schematic diagram of the connection relationship between a rectangular block, a rubber sealing pad and a cover plate of a water and fertilizer precision control device for drip irrigation of cotton under film according to the utility model;

[0021] Figure 4 This is a schematic diagram of the three-dimensional structure of a filter unit of a water and fertilizer precision control device for cotton under-membrane drip irrigation according to the utility model;

[0022] Figure 5 This is a front view of a filter unit of a water and fertilizer precision control device for cotton under-membrane drip irrigation according to the utility model;

[0023] Figure 6 The utility model is a schematic diagram of the three-dimensional structure of a valve core and a screw rod of a water and fertilizer precision control device for cotton under-membrane drip irrigation.

[0024] Legend:

[0025] 10. Control pipe; 11. First control valve; 12. Second control valve; 13. Filter box; 14. Filter unit; 15. Cover plate; 16. Handle; 17. Rectangular block; 18. Rubber sealing pad; 19. First filter; 20. First frame plate; 21. Second filter; 22. Second frame plate; 23. Extension plate; 24. Screw; 25. Hand wheel; 26. Valve core; 27. Inclined surface. DETAILED DESCRIPTION

[0026] like Figure 1-6 As shown: a water and fertilizer precision control device for cotton under film drip irrigation, comprising: a control pipe 10, the control pipe 10 is arranged on the ground, the control pipe 10 is a rectangular pipe, the control pipe 10 is in a "Z" shape, and the two ends of the control pipe 10 are respectively provided with a water inlet and a water outlet from high to low; a flow rate control component, the flow rate control component includes a first control valve 11 and a second control valve 12 arranged at the top of the control pipe 10, the first control valve 11 controls the flow rate of the water inlet, and the second control valve 12 controls the flow rate of the water outlet; a filter component, the filter component includes a filter box 13 arranged at the top of the side wall surface at the corner of the outer wall surface of the control pipe 10, the cross-section of the filter box 13 is a right-angle trapezoid, and the filter box 13 is connected with the control pipe 10; a filter unit 14, the filter unit 14 is arranged in the cavity of the filter box 13 and the control pipe 10, and the filter unit 14 includes a first filter 19 and a second filter 21.

[0027] Specifically, by setting the control pipe 10 in a "Z" shape, water flows in from the high water inlet, passes through the filter component at the corner and flows out from the low water outlet. The "Z" shape is convenient for setting the filter component in the device, and later repair and cleaning are more convenient. By setting the flow rate control component, the flow rate of the water-fertilizer solution passing through the control pipe 10 can be controlled, which helps to achieve precise control. The device has the advantages of easy control, prevention of pipeline blockage, and easy disassembly and cleaning of the filter.

[0028] The top of the filter box 13 is open, and a rectangular block 17 is movably engaged with the top of the filter box 13. A rubber sealing pad 18 is bonded and fixed to the outer wall of the rectangular block 17. The top of the rectangular block 17 is fixedly connected to the cover plate 15, and a handle 16 is fixedly installed on the top of the cover plate 15.

[0029] Specifically, by setting the top of the filter box 13 to be open, and bonding and fixing the rubber sealing gasket 18 on the outer wall surface of the rectangular block 17, when the rectangular block 17 and the rubber sealing gasket 18 are engaged with the opening at the top of the filter box 13, the sealing effect of the device can be improved. The cover plate 15 and the handle 16 are provided to facilitate the staff to lift the rectangular block 17, which is convenient for subsequent maintenance.

[0030] The first filter screen 19 is fixedly connected to the first frame plate 20 on both the front and rear sides, and the second filter screen 21 is fixedly connected to the second frame plate 22 on both the front and rear sides. The first filter screen 19 and the second filter screen 21 are fixedly connected at one end close to each other, and the first frame plate 20 and the second frame plate 22 are fixedly connected on one side close to each other. The first filter screen 19 is fixedly connected to the extension plate 23 in a horizontal state at one end away from the second filter screen 21. The first filter screen 19 is in a tilted downward state, and the second filter screen 21 is in a tilted upward state. The cross section of the combination of the first filter screen 19 and the second filter screen 21 is in a "√" shape, and a support plate is provided on the inner wall surface of the control tube 10 below the first frame plate 20 and the second frame plate 22.

[0031] Specifically, by setting the first filter screen 19 and the second filter screen 21 to be fixedly connected at one end thereof close to each other, the first frame plates 20 on both sides of the first filter screen 19 are fixedly connected with the second frame plates 22 on both sides of the second filter screen 21, so that the first filter screen 19 and the second filter screen 21 are combined into a whole. When the water in the control pipe 10 passes through the first filter screen 19 and the second filter screen 21, the particles in the water remain above the second filter screen 21 and the first filter screen 19. Since the first filter screen 19 is in a tilted downward state and the second filter screen 21 is in a tilted upward state, the cross-section of the combination of the first filter screen 19 and the second filter screen 21 is in a "√" shape, thereby leaving particles or impurities at the junction of the first filter screen 19 and the second filter screen 21. By setting one end of the first filter screen 19 to be connected to the extension plate 23, the extension plate 23 is in contact with the wall surface in the cavity of the control pipe 10. A support plate is provided on the inner wall surface of the control pipe 10 below the first frame plate 20 and the second frame plate 22, so that the first filter screen 19 and the second filter screen 21 are firmly engaged and easy to disassemble.

[0032] The first regulating valve 11 and the second regulating valve 12 both include a valve body disposed on the regulating tube 10, in which a valve core 26 is movably engaged, and the valve core 26 is a rectangular body, and a screw 24 is rotatably disposed at the top of the valve core 26, and one end of the screw 24 away from the valve core 26 movably passes through the top of the valve body and is fixedly connected to a hand wheel 25. An inclined surface 27 is provided on one side wall of the valve core 26, and the valve core 26 is movably engaged with the cavity of the regulating tube 10 during the lifting process.

[0033] Specifically, by setting the first regulating valve 11 and the second regulating valve 12, the valve bodies are set at both ends of the regulating pipe 10, and the staff drives the screw 24 to rotate synchronously by rotating the hand wheel 25. The screw 24 moves through the top of the valve body, and the bottom end of the screw 24 is rotatably connected with the corresponding valve core 26. The lifting and lowering of the screw 24 drives the valve core 26 to lift and lower synchronously, thereby controlling the flow rate of water and fertilizer in the cavity of the regulating pipe 10. By providing an inclined surface 27 on one side of the valve core 26, a guiding effect is played on the water and fertilizer solution.

[0034] The working principle of the water and fertilizer precision control device for cotton under membrane drip irrigation in the present application is: by setting a first control valve 11 and a second control valve 12 at both ends of a control tube 10 to precisely control the flow rate of the water and fertilizer solution passing therethrough, by setting a filter box 13 at the top of the side wall surface at the corner of the outer wall surface of the control tube 10, the filter box 13 is connected with the cavity of the control tube 10, and a filter unit 14 is jointly set in the cavity of the filter box 13 and the control tube 10 to filter the water and fertilizer solution. This method is more convenient and simple to clean and replace the first filter screen 19 and the second filter screen 21 at a later stage.

[0035] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. The technicians in this industry should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A device for precise control of water and fertilizer for cotton under film drip irrigation, characterized in that: include: A control pipe (10), wherein the control pipe (10) is arranged on the ground, the control pipe (10) is in a "Z" shape, and two ends of the control pipe (10) are respectively provided with a water inlet and a water outlet from high to low; A flow rate control component, the flow rate control component comprising a first control valve (11) and a second control valve (12) arranged at the top end of the control pipe (10), the first control valve (11) controlling the flow rate of the water inlet, and the second control valve (12) controlling the flow rate of the water outlet; A filter assembly, the filter assembly comprising a filter box (13) arranged at the top end of the side wall surface at the corner of the outer wall surface of the control tube (10), the cross section of the filter box (13) is a right-angle trapezoid, and the filter box (13) and the control tube (10) are connected; A filter unit (14), wherein the filter unit (14) is arranged in the cavity between the filter box (13) and the regulating tube (10), and the filter unit (14) comprises a first filter (19) and a second filter (21).

2. The device for precise control of water and fertilizer for cotton under film drip irrigation according to claim 1, characterized in that: The top of the filter box (13) is open, a rectangular block (17) is movably engaged with the top of the filter box (13), a rubber sealing pad (18) is bonded and fixed to the outer wall surface of the rectangular block (17), the top of the rectangular block (17) is fixedly connected to a cover plate (15), and a handle (16) is fixedly installed on the top of the cover plate (15).

3. The device for precise control of water and fertilizer for cotton under film drip irrigation according to claim 1, characterized in that: The front and rear sides of the first filter screen (19) are both fixedly connected to a first frame plate (20), and the front and rear sides of the second filter screen (21) are both fixedly connected to a second frame plate (22).

4. The device for precise control of water and fertilizer for cotton under film drip irrigation according to claim 3 is characterized by: The first filter screen (19) and the second filter screen (21) are fixedly connected at one end close to each other, the first frame plate (20) and the second frame plate (22) are fixedly connected at one side close to each other, and the first filter screen (19) is fixedly connected to an extension plate (23) in a horizontal state at one end away from the second filter screen (21).

5. The device for precise control of water and fertilizer for cotton under film drip irrigation according to claim 3 is characterized by: The first filter screen (19) is in a state of tilting downward, the second filter screen (21) is in a state of tilting upward, and the cross section of the combination of the first filter screen (19) and the second filter screen (21) is in a "√" shape.

6. The device for precise control of water and fertilizer for cotton under film drip irrigation according to claim 1, characterized in that: The first regulating valve (11) and the second regulating valve (12) both comprise a valve body arranged on a regulating pipe (10), a valve core (26) being movably engaged in the valve body, a screw (24) being rotatably arranged at the top end of the valve core (26), and an end of the screw (24) away from the valve core (26) movably passing through the top end of the valve body and being fixedly connected to a hand wheel (25).

7. The device for precise control of water and fertilizer for cotton under film drip irrigation according to claim 6, characterized in that: An inclined surface (27) is provided on one side wall of the valve core (26), and the valve core (26) is movably engaged with the cavity of the control tube (10) during the lifting and lowering process.

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