Irrigation device for agricultural water conservancy irrigation

Abstract

The invention relates to the technical field of agricultural irrigation, and discloses an irrigation device for agricultural water conservancy irrigation, which comprises a bottom fixing frame serving as an installation foundation of the device and comprising a central connecting frame formed by a telescopic rectangular frame and used for transversely adjusting the width of the device; the movable fixing frames are arranged on the two sides of the central connecting frame in a bilateral symmetry and front-back staggered mode, the movable fixing frames are slidably connected with the central connecting frame through telescopic beams, the telescopic beams are driven by the central connecting frame and the movable fixing frames at the bottom of the device through servo motors, and flexible adjustment can be conducted according to the ridge width or line spacing of farmland; the agricultural irrigation device is suitable for farmlands with different widths, the applicability and practicability of the device are improved, the bottom irrigation blind area of a traditional wide-bottom box body is avoided through the narrow and high box body design, full-coverage spraying of the farmlands is achieved by combining the spraying pieces which are symmetrically arranged and opposite in spraying direction, spraying omission is reduced, and the irrigation efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of agricultural irrigation, in particular to an irrigation device used for agricultural water irrigation. Background Art

[0002] Agricultural irrigation technology is crucial for efficient modern agricultural production. The design of sprinkler systems directly impacts water resource utilization and crop growth uniformity. Traditional irrigation systems suffer from widespread issues such as blind spots, insufficient adjustment capabilities, and resource waste, making them inadequate for precision agriculture. The following analysis examines the innovative background behind this system's full-coverage spraying design, citing the limitations of existing sprinkler technology.

[0003] Coverage limitations of traditional spraying devices: Blind areas of coverage of fixed sprinklers: Early sprinkler systems mostly used fixed sprinklers. Due to the limitations of installation position and spray angle, the spraying range was distributed in a circular or fan-shaped manner, and irrigation blind areas were easily formed at the roots of crops between rows. Especially for narrow-row densely planted crops (such as wheat and vegetables), it is difficult for adjacent sprinkler heads to overlap, resulting in uneven soil wetting. Studies have shown that the field uniformity of fixed sprinkler irrigation is only 60%-70%, and the water resource waste rate is as high as 30%; Adjustment defects of mobile equipment: In order to improve flexibility, some equipment uses a mobile bracket and dragging nozzle design, but the bracket width is fixed and cannot be adapted to farmland with different ridge widths. For example, the row spacing in orchards is often 2-4 meters, while the row spacing of field crops is only 0.5-1 meter, making it difficult for a single device to be applied across scenarios. Furthermore, traditional sprinkler angle adjustment relies on manual operation, resulting in low precision and easy deviation, making it impossible to achieve three-dimensional irrigation (i.e., simultaneous wetting of the tree canopy and roots). Liquid level monitoring and flow control are also inadequate: existing liquid storage tanks often rely on simple float valves or visual level measurement, lacking precise monitoring and early warning capabilities. During spraying, operators struggle to detect insufficient liquid flow, which can lead to irrigation interruptions or over-pumping. Furthermore, flow control relies on mechanical valves, making quantitative adjustment difficult and exacerbating unnecessary waste of water and fertilizer resources.

[0004] To address the above problems, this device focuses on structural innovation and precise control, and achieves full coverage spraying through the following designs: Symmetrical staggered narrow row spray box: The box layout is symmetrical on the left and right and staggered front and back, combined with reverse jet nozzles, so that the single spray coverage width is increased to twice that of traditional equipment, eliminating blind spots between rows; stepless angle adjustment and self-locking: The arc-shaped meshing structure realizes rapid adjustment of the nozzle angle and is fixed by mechanical self-locking to meet the three-dimensional irrigation needs of low crops and tall fruit trees; servo motor-driven width adaptation: The telescopic beam and the triangular support frame work together to enable the device width to be steplessly adjusted between 0.8-3 meters, adapting to a variety of scenarios such as wheat fields, orchards and greenhouses; dual closed-loop control of liquid level and flow: The reed switch magnetic control liquid level monitoring is linked with the flow meter to realize liquid volume early warning and quantitative spraying, ensuring irrigation continuity and reducing resource waste. Summary of the Invention

[0005] (1) Technical problems solved

[0006] In view of the deficiencies in the prior art, the present invention provides an irrigation device for agricultural water irrigation, which has the advantage of full coverage spraying.

[0007] (2) Technical solution

[0008] In order to achieve the above-mentioned full coverage spraying purpose, the present invention provides the following technical solution: an irrigation device for agricultural water conservancy irrigation, comprising:

[0009] The bottom bracket serves as the mounting base for the device and includes:

[0010] A central connecting frame, consisting of a retractable rectangular frame, used to adjust the width of the device laterally;

[0011] The movable fixing frame is symmetrical and staggered front and back and is arranged on both sides of the central connecting frame. The movable fixing frame is slidably connected to the central connecting frame through a telescopic beam;

[0012] The narrow row quantitative spray box is set in one-to-one correspondence with the mobile fixed frame and serves as a storage device for the spray liquid, including:

[0013] The box body is arranged in a narrow and high shape and is fixedly arranged on the upper end of the corresponding movable fixed frame;

[0014] The quantitative spraying parts are symmetrically arranged at the upper end of the box body and spray in opposite directions;

[0015] An angle adjustment member is fixedly mounted on the upper end of the box body and is provided in a one-to-one correspondence with the positioning spraying member for adjusting the spraying angle;

[0016] A liquid level monitoring component is disposed in the box to monitor the level of the spraying liquid;

[0017] When agricultural irrigation is carried out, the narrow row quantitative spraying boxes that are symmetrical left and right and staggered front and back are used to achieve full coverage and uniform spraying of the farmland.

[0018] According to the above solution, the central connecting frame includes:

[0019] The central connecting beam is a hollow rectangular structure with sliding tracks symmetrically arranged on both sides;

[0020] a telescopic beam nested in the central connecting beam;

[0021] A servo motor is fixedly mounted at the center of the upper end of the central connecting beam, with its output end extending into the central connecting beam;

[0022] Bevel gear 1, fixedly mounted on the output end of the servo motor;

[0023] A movable shaft is movably mounted in the central connecting beam via a shaft seat and is provided in a one-to-one correspondence with the telescopic beams, one end of which is threadedly connected to the telescopic beam, and the other end of which is fixedly mounted with a bevel gear 2 that meshes with the bevel gear 1;

[0024] The handle is in a Y-shaped bifurcated structure, with an anti-slip sleeve at the end, and is fixed to the upper end of the central connecting beam.

[0025] According to the appeal scheme, the mobile fixed frame includes:

[0026] A hollow fixing frame, serving as the installation base of the narrow row quantitative spraying box, is fixed to the end of the telescopic beam by bolts;

[0027] Universal wheels, symmetrically fixedly mounted on the lower end of the hollow fixing frame;

[0028] A movable connecting beam, one end of which is movably mounted on the side wall of the hollow fixing frame;

[0029] A T-shaped slider, movably mounted at the end of the movable connecting beam and movably mounted in a T-shaped sliding groove on the side wall of the central connecting beam;

[0030] The hollow fixing frame, the movable connecting beam, the central connecting beam and the telescopic beam form a triangular stable support frame

[0031] According to the above solution, the quantitative spraying part includes:

[0032] A spray handle, one end of which is provided with a spray head, and the other end of which is connected to the bottom of the box body through a connecting pipe;

[0033] A delivery pump, fixedly mounted on the side wall of the box, for pumping the liquid in the box to the spray head;

[0034] A flow meter is provided on the connecting pipe and is electrically connected to the delivery pump to control the flow rate.

[0035] According to the above solution, the angle adjustment member includes:

[0036] A fixing seat, fixedly mounted on the upper end of the box;

[0037] The movable plate is movably mounted in the fixing seat via an angle clamp and can rotate around the axis of the fixing seat;

[0038] The movable clamping hoop is fixedly mounted on the upper end of the movable disc and is used for clamping the quantitative spraying member and adjusting its spraying direction.

[0039] According to the above solution, the angle clip includes:

[0040] A movable block is symmetrically and movably mounted in an edge placement groove in the movable disk;

[0041] A telescopic spring is fixedly installed between the movable blocks to reset the movable blocks;

[0042] An arc-shaped clamping joint is provided in a one-to-one correspondence with the movable block and is fixedly mounted on an end of the movable block away from the telescopic spring, with an end thereof movably mounted in the arc-shaped clamping groove on the inner wall of the fixed base;

[0043] By rotating the movable clamping hoop to apply external force, the arc-shaped clamping head slides along the arc-shaped clamping groove, thereby realizing stepless adjustment of the spraying angle, and the angle is fixed by the self-locking property of the arc-shaped meshing structure.

[0044] According to the appeal scheme, the liquid level monitoring component includes:

[0045] A central positioning rod, fixedly installed at the center of the box;

[0046] A floating plate movably floats on the central positioning rod and moves up and down with the liquid level;

[0047] A magnet, embedded and fixed on the floating plate;

[0048] A reed switch is mounted on the lower end of the box;

[0049] The buzzer alarm is fixedly mounted on the outer wall of the box body and is electrically connected to the reed switch via a wire.

[0050] According to the above solution, the side wall of the box body is provided with a visual observation window and the side wall of the visual observation window is provided with a liquid level scale line.

[0051] (3) Beneficial effects

[0052] Compared with the prior art, the present invention provides an irrigation device for agricultural water conservancy irrigation, which has the following beneficial effects:

[0053] 1. Flexibility in width adjustment: The central connecting frame and the mobile fixed frame at the bottom of the device drive the telescopic beam through a servo motor, which can be flexibly adjusted according to the ridge width or row spacing of the farmland, adapting to farmlands of different widths, thereby improving the applicability and practicality of the device.

[0054] 2. Full coverage spraying: The narrow and high box design avoids the bottom irrigation blind area of the traditional wide-bottom box. Combined with the symmetrically arranged spraying parts with opposite spraying directions, it achieves full coverage spraying of the farmland, reduces spraying omissions, and improves irrigation efficiency.

[0055] 3. Precise angle adjustment: Through the stepless adjustment structure of the arc-shaped clamping joint and the arc-shaped clamping groove, users can quickly adjust the spraying angle according to the height and distribution requirements of different crops, and fix the angle through the self-locking feature to ensure the accuracy and stability of the spraying direction, thereby improving the uniformity and effect of the spraying.

[0056] 4. Intelligent liquid level monitoring: The liquid level monitoring system monitors the amount of liquid in the tank in real time. When the liquid level is lower than the set threshold, the buzzer alarm will sound an alarm to remind the user to replenish the liquid in time to avoid spraying interruption due to insufficient liquid, thereby increasing the reliability and intelligence level of the device.

[0057] 5. Visual liquid level observation: The visual observation window and liquid level scale on the side wall of the box allow users to observe the liquid level at any time, assist in judging the remaining liquid amount, and increase the convenience and intuitiveness of operation.

[0058] 6. High efficiency and water saving: Through the cooperation of flow meter and delivery pump, the device can realize quantitative spraying and accurately control liquid flow, thus reducing the waste of water resources and improving the water-saving effect of irrigation.

[0059] 7. Structural stability: The triangular stable support frame and movable connecting beam design at the bottom of the device enhance the stability of the overall structure, prevent the device from tilting or overturning due to vibration or movement during spraying, and improve the safety and durability of the device.

[0060] 8. Dense row spacing adaptation: For the narrow row spacing commonly used for low-lying crops (such as wheat row spacing of 15-20cm), the servo motor drives the telescopic beam to narrow the width of the device, so that the coverage of the symmetrical spray head accurately matches the row spacing.

[0061] 9. Applicability in multiple scenarios: The device has a flexible design and is suitable for a variety of agricultural scenarios such as wheat fields, orchards, greenhouses, etc. Whether it is low crops or tall fruit trees, it can meet different irrigation needs by adjusting the spraying angle and flow rate. It has wide applicability and market prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0062] Figure 1 It is a schematic diagram of the first three-dimensional structure of the present invention;

[0063] Figure 2 is a schematic diagram of a second three-dimensional structure of the present invention;

[0064] Figure 3 is a schematic diagram of a third three-dimensional structure of the present invention;

[0065] Figure 4 is a schematic diagram of a fourth three-dimensional structure of the present invention;

[0066] Figure 5 is a schematic diagram of a fifth three-dimensional structure of the present invention;

[0067] Figure 6 It is a schematic diagram of a first partial three-dimensional structure of the present invention;

[0068] Figure 7 is a schematic diagram of a second partial three-dimensional structure of the present invention;

[0069] Figure 8 is a schematic diagram of a third partial three-dimensional structure of the present invention;

[0070] Figure 9 is a schematic diagram of a fourth partial three-dimensional structure of the present invention;

[0071] Figure 10 For the present invention Figure 9 Enlarged schematic diagram of point A in the middle.

[0072] Figure: 1. Central connecting frame; 11. Central connecting beam; 12. Telescopic beam; 13. Servo motor; 14. Bevel gear 1; 15. Movable shaft; 16. Bevel gear 2; 17. Handle; 18. Anti-slip sleeve; 2. Mobile fixing frame; 21. Hollow fixing frame; 22. Universal wheel; 23. Movable connecting beam; 24. T-shaped slider; 3. Box; 31. Visual observation window; 32. Liquid level mark; 4. Dosing sprayer ;41. Spraying handle;42. Delivery pump;43. Flow meter;44. Connecting pipe;45. Spraying head;5. Angle adjustment part;51. Fixed seat;52. Movable disk;53. Movable clamp;6. Liquid level monitoring part;61. Central positioning rod;62. Floating plate;63. Magnet;64. Reed switch;65. Buzzer alarm;7. Angle clamp;71. Movable block;72. Telescopic spring;73. Arc clamp joint. DETAILED DESCRIPTION

[0073] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0074] See also Figure 1-10 The present invention provides a technical solution: an irrigation device for agricultural water conservancy irrigation, comprising:

[0075] The bottom bracket serves as the mounting base for the device and includes:

[0076] The central connecting frame 1 is composed of a retractable rectangular frame and is used to adjust the width of the device laterally;

[0077] The movable fixing frame 2 is symmetrical and staggered front and back and is arranged on both sides of the central connecting frame 1. The movable fixing frame 2 is slidably connected to the central connecting frame 1 through a telescopic beam 12;

[0078] The narrow row quantitative spray box is set in one-to-one correspondence with the mobile fixed frame 2 and serves as a storage device for the spray liquid, including:

[0079] The box body 3 is narrow and high and is fixedly mounted on the upper end of the corresponding movable fixed frame 2;

[0080] The quantitative spraying member 4 is symmetrically arranged on the upper end of the box 3 and sprays in opposite directions;

[0081] An angle adjustment member 5 is fixedly mounted on the upper end of the box body 3 and is provided in a one-to-one correspondence with the positioning spraying member 4 for adjusting the spraying angle;

[0082] A liquid level monitoring component 6 is provided in the box 3 to monitor the level of the spraying liquid;

[0083] When agricultural irrigation is carried out, the narrow row quantitative spraying boxes that are symmetrical left and right and staggered front and back are used to achieve full coverage and uniform spraying of the farmland.

[0084] Specifically, the central connecting frame 1 includes:

[0085] The central connecting beam 11 is a hollow rectangular parallelepiped structure with sliding tracks symmetrically arranged on both sides of the interior;

[0086] The telescopic beam 12 is nested in the central connecting beam 11;

[0087] The servo motor 13 is fixedly mounted at the center of the upper end of the central connecting beam 11, and its output end extends into the central connecting beam 11;

[0088] Bevel gear 14 is fixedly mounted on the output end of the servo motor 13;

[0089] A movable shaft 15 is movably mounted in the central connecting beam 11 via a shaft seat and is provided in a one-to-one correspondence with the telescopic beam 12. One end of the movable shaft 15 is threadedly connected to the telescopic beam 12, and the other end of the movable shaft 15 is fixedly mounted with a bevel gear 2 16 that meshes with the bevel gear 1 14.

[0090] The handle 17 is a Y-shaped bifurcated structure with an anti-slip sleeve 18 at the end thereof, and is fixed to the upper end of the central connecting beam 11 .

[0091] Specifically, the mobile fixing frame 2 includes:

[0092] A hollow fixing frame 21, serving as the installation base of the narrow row quantitative spraying box, is fixed to the end of the telescopic beam 12 by bolts;

[0093] Universal wheels 22, symmetrically fixedly mounted on the lower end of the hollow fixing frame 21;

[0094] A movable connecting beam 23, one end of which is movably mounted on the side wall of the hollow fixing frame 21;

[0095] A T-shaped slider 24 is movably mounted at the end of the movable connecting beam 23 and movably mounted in a T-shaped sliding groove on the side wall of the central connecting beam 11;

[0096] The hollow fixing frame 21, the movable connecting beam 23, the central connecting beam 11 and the telescopic beam 12 form a triangular stable support frame

[0097] Specifically, the quantitative spraying member 4 includes:

[0098] A spray handle 41 is provided with a spray head 45 at one end, and the other end is connected to the bottom of the box body 3 through a connecting pipe 44;

[0099] A delivery pump 42, fixedly mounted on the side wall of the box 3, for pumping the liquid in the box 3 to the spray head;

[0100] The flow meter 43 is provided on the connecting pipe 44 and is electrically connected to the delivery pump 42 to control the flow rate.

[0101] Specifically, the angle adjustment member 5 includes:

[0102] A fixing base 51 is fixedly mounted on the upper end of the box body 3;

[0103] The movable plate 52 is movably mounted in the fixing seat 51 through the angle clamping member 7 and can rotate around the axis of the fixing seat 51;

[0104] The movable clamp 53 is fixedly mounted on the upper end of the movable disc 52 and is used to clamp the quantitative spraying member 4 and adjust its spraying direction.

[0105] Specifically, the angle clamping member 7 includes:

[0106] The movable block 71 is symmetrically mounted in the edge placement groove of the movable plate 52;

[0107] A telescopic spring 72 is fixedly installed between the movable blocks 71 to reset the movable blocks 71;

[0108] The arc-shaped clamping joint 73 is provided in a one-to-one correspondence with the movable block 71 and is fixedly mounted on the end of the movable block 71 away from the telescopic spring 72, and the end thereof is movably mounted in the arc-shaped clamping groove on the inner wall of the fixing seat 51;

[0109] By rotating the movable clamping hoop 53 and applying external force, the arc-shaped clamping joint 73 slides along the arc-shaped clamping groove to achieve stepless adjustment of the spraying angle, and the angle is fixed by the self-locking characteristics of the arc-shaped meshing structure.

[0110] Specifically, the liquid level monitoring component 6 includes:

[0111] A central positioning rod 61 is fixedly installed at the central position of the box body 3;

[0112] The floating plate 62 movably floats on the central positioning rod 61 and moves up and down with the liquid level;

[0113] The magnet 63 is embedded and fixed on the floating plate 62;

[0114] The reed switch 64 is embedded in the lower end of the box 3;

[0115] The buzzer alarm 65 is fixedly mounted on the outer wall of the box 3 and is electrically connected to the reed switch 64 via a wire;

[0116] Specifically, a visual observation window 31 is provided on the side wall of the box body 3 , and a liquid level scale line 32 is provided on the side wall of the visual observation window 31 .

[0117] The functional structure of the components of this device is as follows:

[0118] Bottom fixing bracket

[0119] Function: Serves as the basic support structure of the device, providing stability and mobility to adapt to different farmland widths.

[0120] Central connecting frame 1:

[0121] The central connecting beam 11 is a hollow rectangular parallelepiped structure with sliding tracks symmetrically arranged on both sides thereof to accommodate the telescopic movement of the telescopic beam 12 .

[0122] Telescopic beam 12: nested in the central connecting beam 11, driven by servo motor 13 to extend and retract horizontally, adjusting the overall width of the device to adapt to the size of the farmland.

[0123] The servo motor 13 transmits power to the movable shaft 15 through the bevel gear set (14, 16), driving the telescopic beam 12 to extend and retract synchronously.

[0124] Bevel gear 1 14 and bevel gear 2 16 are meshed to convert the rotational motion of the servo motor into the linear motion of the movable shaft 15 .

[0125] Handle 17: Y-shaped bifurcated design, with an anti-slip sleeve 18 at the end to facilitate manual pushing of the device.

[0126] Mobile mount 2:

[0127] Hollow fixing frame 21: The end of the telescopic beam 12 is fixed by bolts and serves as the installation platform of the narrow row quantitative spraying box. The hollow design reduces weight.

[0128] Universal wheels 22: symmetrically mounted on the bottom of the hollow fixing frame 21 to achieve flexible movement and steering of the device.

[0129] Active connecting beam 23 and T-shaped slider 24: One end of the active connecting beam 23 is hinged to the hollow fixing frame 21, and the other end is embedded in the T-shaped slide groove of the central connecting beam 11 through the T-shaped slider 24, forming a triangular stable support frame to prevent the device from tilting.

[0130] Narrow row metered spray box

[0131] Function: Store spray liquid and realize quantitative, directional and full coverage irrigation.

[0132] Box 3:

[0133] Narrow and high design: reduces floor space and avoids the obstruction of irrigation in the bottom area by traditional wide-bottom boxes; fixed on the upper end of the mobile fixing frame 2, with the bottom higher than the ground to avoid the irrigation area.

[0134] Visual observation window 31 and liquid level scale line 32: The transparent material window displays the liquid level in real time, and the scale line assists in judging the remaining liquid amount.

[0135] Quantitative spraying part 4:

[0136] The spraying handle 41 and the spraying head 45 are symmetrically arranged and in opposite directions, thereby expanding the coverage of a single spraying.

[0137] Connecting pipe 44: extracts liquid from the bottom of the box 3 to prevent sediment from clogging the spray head.

[0138] Delivery pump 42: provides power to pump liquid from tank 3 to spray head 45.

[0139] Flow meter 43: monitors the liquid flow in real time and works in conjunction with the delivery pump 42 to achieve quantitative spraying (e.g., automatically starts and stops after setting a flow threshold).

[0140] Angle adjustment part 5:

[0141] The fixing seat 51 is fixed to the upper end of the box body 3 and has an annular arc-shaped clamping groove on the inner side.

[0142] Movable disc 52: connected to the fixed seat 51 through the angle clamping piece 7, and can be rotated around the axis to adjust the spraying angle.

[0143] The movable clamping collar 53 clamps the spraying handle 41 and applies external force by rotating it to drive the movable disc 52 to rotate and adjust the spraying direction.

[0144] Angle connector 7:

[0145] Movable block 71 and telescopic spring 72 : The symmetrical movable block 71 is reset by the telescopic spring 72 , ensuring that the arc-shaped clamping joint 73 is tightly engaged with the arc-shaped clamping groove of the fixing seat 51 .

[0146] Arc-shaped clamping joint 73: Sliding engagement with the arc-shaped clamping groove to achieve stepless adjustment of the spraying angle; the angle is fixed by relying on the self-locking characteristics of the arc-shaped engagement structure to avoid deviation during the spraying process.

[0147] Liquid level monitoring component 6:

[0148] Central positioning rod 61 : vertically fixed to the center of the box body 3 to limit the movement trajectory of the floating plate 62 .

[0149] Floating plate 62 and magnet 63: The floating plate 62 floats up and down with the liquid level, and the magnet 63 is embedded in its bottom to trigger the reed switch 64.

[0150] Reed switch 64: Normally closed magnetic switch. When the liquid level is normal, the magnet 63 moves away from the reed switch 64, the reed switch 64 remains closed, the circuit is connected, and the buzzer is silent. When the liquid level is too low, the magnet 63 moves close to the reed switch 64, the reed switch 64 is disconnected, the circuit is cut off, and the buzzer 65 triggers an alarm through an external relay or backup power supply.

[0151] Buzzer alarm 65: connected in series with the reed switch 64. When the liquid level is too low, the circuit is disconnected, the buzzer stops being silent and an alarm is triggered.

[0152] Working Principle: This device achieves full coverage and precise irrigation of farmland through an adjustable width bottom bracket, symmetrically offset spray boxes, a quantitative spraying system, and liquid level monitoring functions. Its core working principle is as follows:

[0153] Width adjustment and mobile positioning

[0154] Servo motor drives telescopic movement: Start the servo motor 13, and drive the movable shaft 15 to rotate through the meshing transmission of the bevel gear 14 and the bevel gear 2 16, driving the telescopic beam 12 to synchronously extend and retract in the central connecting beam 11, adjusting the overall width of the device to adapt to the size of the farmland.

[0155] Triangular stable support: The mobile fixing frame 2 is slidably connected to the central connecting frame 1 through the movable connecting beam 23 and the T-shaped slider 24, forming a triangular stable support frame to ensure that the structure is stable when the device moves.

[0156] Flexible movement of universal wheels: By pushing the device with the handle 17, the universal wheels 22 can move in multiple directions to adapt to complex field terrain.

[0157] Stepless adjustment of spray angle

[0158] Rotational self-locking structure: Rotating the movable clamping hoop 53 drives the movable disk 52 to rotate, so that the arc-shaped clamping joint 73 slides along the arc-shaped clamping groove on the inner wall of the fixing seat 51 to adjust the spraying direction of the spraying handle 41.

[0159] Self-locking fixation: The arc-shaped meshing structure automatically locks the angle without external force, avoiding angle deviation caused by vibration during spraying.

[0160] Quantitative spraying and flow control

[0161] Symmetrical reverse spraying: Two sets of quantitative spraying parts 4 are symmetrically arranged at the upper end of the box 3, and the spray heads 45 are in opposite directions to expand the coverage of a single spray.

[0162] Precise flow control: The delivery pump 42 pumps the liquid from the tank 3 to the spray head 45. The flow meter 43 monitors the flow in real time and sets a threshold through the electronic control system. When the threshold is exceeded, the pump speed is automatically adjusted or shut down.

[0163] Liquid level monitoring and alarm

[0164] The floating plate floats with the liquid level: when the liquid level drops, the floating plate 62 moves downward along the central positioning rod 61, driving the magnet 63 to approach the reed switch 64 at the bottom of the box.

[0165] Trigger alarm logic:

[0166] The reed switch is of normally closed type: when the liquid level is normal, the magnet 63 moves away from the reed switch 64, the reed switch 64 remains closed, the circuit is connected, and the buzzer is silent; when the liquid level is too low, the magnet 63 moves close to the reed switch 64, the reed switch 64 is disconnected, the circuit is cut off, and the buzzer 65 triggers an alarm through an external relay or backup power supply.

[0167] The workflow of this device is divided into the following main steps, which detail the entire process from device startup to completed irrigation:

[0168] 1. Device startup and positioning

[0169] Step 1.1: Move the device to the working position

[0170] Operation: Push the device by the handle 17 and use the universal wheels 22 on the bottom fixing frame to flexibly move the device to the starting position of the farmland.

[0171] Purpose: To ensure that the device can adapt to different terrains and field layouts and quickly reach the designated operating area.

[0172] Step 1.2: Adjust the Width of the Device

[0173] Operation: Start the servo motor 13, and drive the movable shaft 15 to rotate through the meshing transmission of the bevel gear 14 and the bevel gear 2 16, driving the telescopic beam 12 to extend and retract in the central connecting beam 11, and adjusting the overall width of the device to adapt to the ridge width or row spacing of the farmland.

[0174] Purpose: To ensure that the spraying range matches the width of the farmland to avoid omissions or waste of spraying.

[0175] Step 1.3: Adjustment of the triangular support frame

[0176] Operation: The movable connecting beam 23 slides in the T-shaped slot of the central connecting beam 11 through the T-shaped slider 24, and cooperates with the adjustment of the telescopic beam 12 to form a stable triangular support frame.

[0177] Purpose: To enhance the stability of the device and prevent it from tipping over due to vibration or movement during spraying.

[0178] 2. Setting of spraying angle and flow rate

[0179] Step 2.1: Adjust the spray angle

[0180] Operation: Rotate the movable clamping collar 53 to drive the movable disk 52 to rotate, so that the arc-shaped clamping joint 73 slides along the arc-shaped clamping groove on the inner wall of the fixing seat 51 to adjust the spraying direction of the spraying handle 41.

[0181] Purpose: Adjust the spraying angle according to the height and distribution of crops to ensure that the liquid evenly covers the roots or leaves of crops.

[0182] Step 2.2: Set the spray flow rate

[0183] Operation: Set the spraying flow rate, such as 8 L / min, through the flow meter 43 and electrically connect it to the delivery pump 42 to ensure that the flow rate of the pumped liquid is within the set range.

[0184] Purpose: To achieve precise quantitative spraying and avoid waste of resources and over-irrigation.

[0185] 3. Spraying operation

[0186] Step 3.1: Start the Spraying System

[0187] Operation: Turn on the delivery pump 42 to pump the liquid in the tank 3 to the spray head 45 through the connecting pipe 44.

[0188] Purpose: The spraying operation starts, and liquid is sprayed from the symmetrically arranged spray heads 45 to cover the inter-row area of the farmland.

[0189] Step 3.2: Move the device to spray full coverage

[0190] Operation: Push the device along the farmland and use the symmetrically staggered spray boxes to ensure full coverage of the front, back, left and right areas.

[0191] Purpose: To achieve uniform irrigation of farmland and avoid omissions through continuous movement and spraying.

[0192] Step 3.3: Real-time monitoring of spraying status

[0193] Operation: Observe the liquid level in the box body 3 through the visual observation window 31 and use the liquid level scale line 32 to judge the remaining liquid amount.

[0194] Purpose: To replenish spraying liquid in time to ensure the continuity of operation.

[0195] 4. Liquid level monitoring and alarm

[0196] Step 4.1: Liquid level drop monitoring

[0197] Operation: As the liquid is sprayed, the floating plate 62 moves downward along the central positioning rod 61, driving the magnet 63 away from the reed switch 64 at the bottom of the box.

[0198] Purpose: When the liquid level falls below the set threshold, trigger the liquid level monitoring system.

[0199] Step 4.2: Trigger the alarm mechanism

[0200] Operation: The magnet 63 approaches the reed switch 64, causing the reed switch 64 to disconnect, the circuit to be cut off, and the buzzer alarm 65 to sound an alarm.

[0201] Purpose: To remind operators to replenish liquid in time to avoid spraying interruption due to insufficient liquid.

[0202] 5. Operation completed and device folded up

[0203] Step 5.1: Refill fluid or end the operation

[0204] Operation: Add spraying liquid or end the operation based on the liquid level monitoring results.

[0205] Purpose: To ensure that the device can continue to operate or be safely withdrawn from the farmland.

[0206] Step 5.2: Adjust the device width to the minimum

[0207] Operation: The telescopic beam 12 is retracted by the servo motor 13 to reduce the width of the device for easy movement and storage.

[0208] Purpose: To optimize the storage and transportation of the device and reduce space occupation.

[0209] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An irrigation device for agricultural water conservancy irrigation, characterized in that: include: The bottom bracket serves as the mounting base for the device and includes: A central connecting frame (1) consisting of a retractable rectangular frame for adjusting the width of the device laterally; The movable fixing frame (2) is symmetrical and staggered on both sides of the central connecting frame (1), and the movable fixing frame (2) is slidably connected to the central connecting frame (1) via a telescopic beam (12); The narrow row quantitative spray box is provided in one-to-one correspondence with the mobile fixed frame (2) and serves as a storage device for the spray liquid, and includes: The box body (3) is arranged in a narrow and high shape and is fixedly arranged on the upper end of the corresponding movable fixed frame (2); A quantitative spraying member (4) is symmetrically arranged at the upper end of the box (3) and has opposite spraying directions; An angle adjustment member (5) is fixedly mounted on the upper end of the box (3) and is provided in one-to-one correspondence with the positioning spraying member (4) for adjusting the spraying angle; A liquid level monitoring component (6) is arranged in the box (3) to monitor the level of the spraying liquid; When agricultural irrigation is carried out, the narrow row quantitative spraying boxes that are symmetrical left and right and staggered front and back are used to achieve full coverage and uniform spraying of the farmland.

2. The irrigation device for agricultural water conservancy irrigation according to claim 1, characterized in that: The central connecting frame (1) comprises: The central connecting beam (11) is a hollow rectangular parallelepiped structure with sliding tracks symmetrically arranged on both sides of the interior; a telescopic beam (12) nested in the central connecting beam (11); A servo motor (13) is fixedly mounted at the center of the upper end of the central connecting beam (11), with its output end extending into the central connecting beam (11); A bevel gear (14) is fixedly mounted on the output end of the servo motor (13); A movable shaft (15) is movably mounted in the central connecting beam (11) via a shaft seat and is arranged in a one-to-one correspondence with the telescopic beam (12), one end of which is threadedly connected to the telescopic beam (12) and the other end of which is fixedly mounted with a second bevel gear (16) meshing with the first bevel gear (14); The handle (17) is a Y-shaped bifurcated structure, with an anti-slip sleeve (18) at the end, and is fixed to the upper end of the central connecting beam (11).

3. The irrigation device for agricultural water conservancy irrigation according to claim 2, characterized in that: The movable fixed frame (2) comprises: A hollow fixing frame (21), serving as an installation base for the narrow-row quantitative spraying box, is fixed to the end of the telescopic beam (12) by means of bolts; Universal wheels (22) are symmetrically fixedly mounted on the lower end of the hollow fixing frame (21); A movable connecting beam (23), one end of which is movably mounted on the side wall of the hollow fixing frame (21); A T-shaped sliding block (24) is movably mounted on the end of the movable connecting beam (23) and is movably mounted in a T-shaped sliding groove on the side wall of the central connecting beam (11); The hollow fixing frame (21), the movable connecting beam (23), the central connecting beam (11) and the telescopic beam (12) form a triangular stable support frame.

4. The irrigation device for agricultural water conservancy irrigation according to claim 1, characterized in that: The quantitative spraying member (4) comprises: A spraying handle (41) is provided with a spraying head (45) at one end, and the other end is connected to the bottom of the box (3) through a connecting pipe (44); A delivery pump (42) is fixedly mounted on the side wall of the box (3) and is used to pump the liquid in the box (3) to the spray head; A flow meter (43) is provided on the connecting pipe (44) and is electrically connected to the delivery pump (42) to control the flow rate.

5. The irrigation device for agricultural water conservancy irrigation according to claim 1, characterized in that: The angle adjustment member (5) comprises: A fixing seat (51) is fixedly mounted on the upper end of the box (3); A movable disk (52) is movably mounted in the fixing seat (51) via an angle clamping member (7) and is rotatable around the axis of the fixing seat (51); The movable clamping hoop (53) is fixedly mounted on the upper end of the movable disc (52) and is used for clamping the quantitative spraying member (4) and adjusting its spraying direction.

6. The irrigation device for agricultural water conservancy irrigation according to claim 5, characterized in that: The angle clamping member (7) comprises: A movable block (71) is symmetrically mounted in an edge placement groove in the movable plate (52); A telescopic spring (72) is fixedly mounted between the movable blocks (71) to reset the movable blocks (71); An arc-shaped clamping joint (73) is provided in one-to-one correspondence with the movable block (71) and is fixedly mounted on one end of the movable block (71) away from the telescopic spring (72), with the end thereof being movably mounted in the arc-shaped clamping groove on the inner wall of the fixing seat (51); By rotating the movable clamping hoop (53) and applying external force, the arc-shaped clamping joint (73) slides along the arc-shaped clamping groove, thereby achieving stepless adjustment of the spraying angle, and fixing the angle through the self-locking characteristics of the arc-shaped meshing structure.

7. The irrigation device for agricultural water conservancy irrigation according to claim 1, characterized in that: The liquid level monitoring component (6) comprises: A central positioning rod (61) is fixedly mounted at the central position of the box (3); A floating plate (62) movably floats on the central positioning rod (61) and moves up and down with the liquid level; A magnet (63) is embedded and fixedly mounted on the floating plate (62); A reed switch (64) is embedded in the lower end of the box (3); The buzzer alarm (65) is fixedly mounted on the outer wall of the box (3) and is electrically connected to the reed switch (64) via a wire.

8. The irrigation device for agricultural water conservancy irrigation according to claim 1, characterized in that: The side wall of the box body (3) is provided with a visual observation window (31), and the side wall of the visual observation window (31) is provided with a liquid level scale line (32).

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