Liquid fertilizer application device for rice planting

Abstract

The present invention relates to the technical field of crop fertilization, specifically to a liquid fertilizer application device for rice planting, which solves the problem that the liquid fertilizer needs to be manually carried on the back for spraying during the existing rice planting process, the spraying efficiency is limited, it is time-consuming and labor-intensive, and the liquid fertilizer cannot be sprayed evenly. The device comprises a mixing liquid replenishment base station and a mobile spraying module, wherein the mobile spraying module is composed of a driving support rod mechanism, a liquid storage and control mechanism, and a multi-directional spraying mechanism. The rear end face of the mixing liquid replenishment base station is equipped with a mobile spraying module, the inner side of the middle part of the driving support rod mechanism is equipped with a multi-directional spraying mechanism, the upper end face of the driving support rod mechanism is equipped with a liquid storage and control mechanism, and the driving support rod mechanism includes a mounting seat. The present invention can effectively improve the spraying efficiency by performing multi-directional spraying at multiple points during movement, and the spraying amount is easier to control. Moreover, the establishment of a base station can facilitate the replenishment of liquid fertilizers with different dilution degrees.

Description

Technical Field

[0001] The invention relates to the technical field of crop fertilization, in particular to a liquid fertilizer application device for rice planting. Background Art

[0002] Liquid fertilizer is a liquid product containing one or more nutrients required by crops. In addition to the main raw materials of nitrogen, phosphorus and potassium, liquid fertilizer can also be added with a variety of biologically active substances such as calcium, magnesium, iron, manganese, boron, zinc and other trace elements. Liquid fertilizer is not only richer in nutrients than traditional fertilizers, but also can be directly absorbed by crops at a fast speed. Therefore, spraying liquid fertilizer on growing rice is a new way to provide nutrition to rice faster.

[0003] In the existing process of rice planting, liquid fertilizer needs to be carried manually for spraying, which has limited spraying efficiency, is time-consuming and labor-intensive, and cannot ensure uniform spraying of the liquid fertilizer; therefore, it does not meet the existing needs. In this regard, we propose a liquid fertilizer application device for rice planting. Summary of the invention

[0004] The purpose of the present invention is to provide a liquid fertilizer application device for rice planting to solve the problem raised in the above background technology that in the process of rice planting, liquid fertilizer needs to be manually carried for spraying, the spraying efficiency is limited, it is time-consuming and labor-intensive, and the liquid fertilizer cannot be sprayed evenly.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a liquid fertilizer application device for rice planting, comprising a mixing and liquid replenishing base station and a mobile spraying module, wherein the mobile spraying module is composed of a driving support rod mechanism, a liquid storage and regulating mechanism and a multi-directional spraying mechanism, the mobile spraying module is installed on the rear end face of the mixing and liquid replenishing base station, the multi-directional spraying mechanism is installed on the inner side of the middle part of the driving support rod mechanism, the liquid storage and regulating mechanism is installed on the upper end face of the driving support rod mechanism, the driving support rod mechanism comprises a mounting seat, a supporting upright frame is fixedly installed on the front end of the mounting seat, and a supporting inclined frame is fixedly installed on the rear end of the mounting seat;

[0006] The multi-directional spraying mechanism includes a fixed plate, which is fixedly connected to the middle part of the mounting seat, a steering seat is rotatably connected between the fixed plate and the mounting seat, a steering dial is rollingly connected to one side of the fixed plate, a third transmission motor is installed at the bottom end of the steering dial, a diverter seat is fixedly installed in the middle part of the lower end surface of the fixed plate, a water pump is fixedly installed on the lower end surface of the diverter seat, a plurality of feed hoses are installed on both sides of the diverter seat, a spray head is installed at one end of the feed hose, and a manipulator is installed between the spray head and the feed hose.

[0007] Preferably, the mixing and replenishing base station includes a supporting frame, a power control box and a liquid storage tank are fixedly installed on the front end face of the supporting frame, a feed pipe is provided on one side of the liquid storage tank, and a delivery elbow is provided on the other side of the liquid storage tank, a mixing box is fixedly installed on the upper end of the delivery elbow, a guide pipe is fixedly installed on the rear end face of the mixing box, liquid level gauges are installed on the inner sides of the upper ends of the liquid storage tank and the mixing box, a first transmission motor is installed on one side of one of the liquid level gauges, and a water inlet pipe is installed on one side of the first transmission motor.

[0008] Preferably, the driving support rod mechanism also includes two driving wheels rotatably connected to the bottom end of the supporting stand, a transmission shaft is fixedly installed between the two driving wheels, a gear box is installed on the outer side of one end of the transmission shaft, a second transmission motor is fixedly installed on one side of the gear box, a battery is fixedly installed in the middle of the supporting oblique frame, and the bottom end of the supporting oblique frame is rotatably connected to two universal wheels.

[0009] Preferably, the liquid storage and regulation mechanism includes a connecting plate, the bottom end of the connecting plate is fixedly connected to the mounting seat, the front end surface of the connecting plate is fixedly mounted with a liquid fertilizer temporary storage box, the rear end surface of the connecting plate is fixedly mounted with a water tank, the upper end surface of the water tank is fixedly mounted with a control panel, two water tanks are installed on the rear end surface of the water tank, and a steering handle is rotatably connected between the two water tanks.

[0010] Preferably, the liquid storage tank is connected to the mixing box through a feed elbow, the mixing box is fixedly connected to the support frame, a mixing frame is provided inside the mixing box, the first transmission motor is fixedly connected to the upper end of the mixing box, the output end of the first transmission motor is plugged into the inner side of the mixing box and fixedly connected to the mixing frame, and the mixing box is connected to the liquid fertilizer temporary storage box through a guide pipe.

[0011] Preferably, the gear box is fixedly connected to the bottom end of the supporting frame, a gear set is provided on the inner side of the gear box, and the output end of the second transmission motor is plugged into the inner side of the gear box and connected to the transmission shaft through the gear set.

[0012] Preferably, the water tank is fixedly connected to the two handle mounting seats, a pin is provided in the middle of the handle mounting seat, both ends of the steering handle are rotatably connected to the two handle mounting seats through the pin, the inner sides of the liquid fertilizer temporary storage box and the bottom of the water tank are provided with solenoid valves, and the battery is electrically connected to the battery valve.

[0013] Preferably, the bottom end of the third transmission motor is fixedly connected to the steering seat, the output end of the third transmission motor is fixedly connected to the steering dial, the steering dial is in close contact with the side of the fixed disk, and the steering seat swings back and forth relative to the center of the fixed disk.

[0014] Preferably, the upper end of the diverter seat passes through the fixed plate and the mounting seat and is in close contact with the lower end surfaces of the liquid fertilizer temporary storage box and the water tank. The upper end of the diverter seat is through-connected with the liquid fertilizer temporary storage box and the water tank. A diverter paddle is fixedly provided on the inner side of the diverter seat. The diverter seat is through-connected with multiple sprinkler heads through a feed hose.

[0015] Preferably, both ends of the steering seat are rotatably connected to multiple spray heads, the manipulator consists of a clamp and an electric push rod, the electric push rod is fixedly connected to the steering seat, and the output end of the electric push rod is fixedly connected to the spray head via the clamp.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The present invention provides a stirring frame inside the stirring box, the output end of the first transmission motor is fixedly connected to the stirring frame, and water is injected into the stirring box through the water inlet pipe, so that the first transmission motor can continuously dilute and stir the liquid fertilizer through the stirring frame, and the internal liquid levels of the liquid storage tank and the stirring box can be monitored by the liquid level meter, and then the dilution degree of the liquid fertilizer can be monitored to meet the preparation of liquid fertilizers with different dilution degrees. The diluted liquid fertilizer can be diverted to the inner side of the liquid fertilizer temporary storage box through the guide pipe, so as to replenish the liquid fertilizers with different dilution degrees;

[0018] 2. The present invention drives the two driving wheels to rotate via the second transmission motor through the gear set and the transmission shaft, and then the whole can be moved smoothly during the process of holding the direction of the two universal wheels through the steering handle. The spray head can spray the liquid fertilizer at multiple points through the diversion of the feeding hose. The third transmission motor drives the steering dial to rotate, and then the steering dial can drive the steering seat to swing back and forth relative to the center of the fixed disk while rotating relative to the fixed disk. The manipulator is composed of an electric push rod and a clamp, so that the electric push rod drives the spray head to swing relative to the steering seat through the clamp, and then the spraying angles of multiple spray heads can be adjusted, thereby realizing multi-angle spraying operation, improving the uniformity of spraying of liquid fertilizer, and covering a wider area. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic structural diagram of a mixing and liquid replenishing base station of the present invention;

[0020] Figure 2 It is a rear side view of the mixing and liquid replenishing base station of the present invention;

[0021] Figure 3 A side view of the present invention as a whole;

[0022] Figure 4 This is a schematic diagram of the installation structure of the mobile spraying module of the present invention;

[0023] Figure 5 It is a structural schematic diagram of the driving support rod mechanism of the present invention;

[0024] Figure 6 It is a partial structural schematic diagram of the multi-directional spraying mechanism of the present invention.

[0025] In the figure: 1. Mixing and liquid replenishing base station; 101. Support frame; 102. Power connection control box; 103. Liquid storage tank; 104. Feed pipe; 105. Liquid level meter; 106. Feeding elbow; 107. First transmission motor; 108. Mixing box; 109. Water inlet pipe; 110. Guide pipe; 2. Mobile spraying module; 3. Drive support rod mechanism; 301. Mounting seat; 302. Support stand; 303. Drive wheel; 304. Support inclined frame; 305. Universal wheel; 306. Battery; 307 , gear box; 308, second transmission motor; 309, transmission shaft; 4, liquid storage and control mechanism; 401, connecting plate; 402, liquid fertilizer temporary storage box; 403, water tank; 404, control panel; 405, steering handle; 406, handle mounting seat; 5, multi-directional spraying mechanism; 501, steering seat; 502, fixing plate; 503, third transmission motor; 504, steering dial; 505, diverter seat; 506, water pump; 507, feed hose; 508, sprinkler head; 509, manipulator. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0027] The first transmission motor 107 (model GV50-3.7KW-60-S), the second transmission motor 308 (model KOM7080), the third transmission motor 503 (model YEJ3-112M-4) and the water pump 506 (model MDZ-20-180) mentioned in the present invention can all be purchased from the market or obtained through private customization.

[0028] See also Figures 1 to 3 , an embodiment provided by the present invention: a liquid fertilizer application device for rice planting, comprising a mixing and liquid replenishing base station 1 and a mobile spraying module 2, the mobile spraying module 2 is composed of a driving support rod mechanism 3, a liquid storage and control mechanism 4 and a multi-directional spraying mechanism 5, the mobile spraying module 2 is installed on the rear end face of the mixing and liquid replenishing base station 1, and the mobile spraying module 2 can replenish liquid fertilizer at a fixed point through the mixing and liquid replenishing base station 1;

[0029] The mixing and replenishing liquid base station 1 includes a supporting frame 101, and a power control box 102 and a liquid storage tank 103 are fixedly installed on the front end surface of the supporting frame 101. A feeding pipe 104 is provided on one side of the liquid storage tank 103, and a material delivery elbow 106 is provided on the other side of the liquid storage tank 103. A stirring box 108 is fixedly installed on the upper end of the material delivery elbow 106, and a guide pipe 110 is fixedly installed on the rear end surface of the stirring box 108. Liquid level gauges 105 are installed on the inner sides of the upper ends of the liquid storage tank 103 and the stirring box 108, and a first transmission motor 107 is installed on one side of one of the liquid level gauges 105, and a first transmission motor 107 is installed on one side of the first transmission motor 107. A water inlet pipe 109 is provided, the liquid storage tank 103 and the mixing tank 108 are connected through a feed elbow 106, the mixing tank 108 is fixedly connected to the support frame 101, a mixing frame is provided inside the mixing tank 108, a first transmission motor 107 is fixedly connected to the upper end of the mixing tank 108, an output end of the first transmission motor 107 is plugged into the inner side of the mixing tank 108 and fixedly connected to the mixing frame, the internal liquid levels of the liquid storage tank 103 and the mixing tank 108 can be monitored by a liquid level meter 105, and then the dilution degree of the liquid fertilizer can be monitored to meet the preparation of liquid fertilizers with different dilution degrees.

[0030] See also Figures 3 to 5 The driving support rod mechanism 3 includes a mounting seat 301, a supporting frame 302 is fixedly installed at the front end of the mounting seat 301, and two driving wheels 303 are rotatably connected to the bottom end of the supporting frame 302, and a transmission shaft 309 is fixedly installed between the two driving wheels 303, and a gear box 307 is installed on the outer side of one end of the transmission shaft 309, and a second transmission motor 308 is fixedly installed on one side of the gear box 307, and the gear box 307 is fixedly connected to the bottom end of the supporting frame 302, and a gear set is provided on the inner side of the gear box 307, and the output end of the second transmission motor 308 is plugged into the inner side of the gear box 307 and is connected to the transmission shaft 309 through the gear set. A battery 306 is fixedly installed in the middle of the supporting inclined frame 304, so that the second transmission motor 308 drives the two driving wheels 303 to rotate through the gear set and the transmission shaft 309, thereby driving the mobile spraying module 2;

[0031] A supporting inclined frame 304 is fixedly installed at the rear end of the mounting seat 301, and the bottom end of the supporting inclined frame 304 is rotatably connected to two universal wheels 305. The two universal wheels 305 can swing at an angle while providing auxiliary support, so as to facilitate adjustment of the moving direction of the mobile spraying module 2.

[0032] See also Figures 3 to 5, a liquid storage regulating mechanism 4 is installed on the upper end surface of the driving support rod mechanism 3, and the liquid storage regulating mechanism 4 includes a connecting plate 401, the bottom end of the connecting plate 401 is fixedly connected to the mounting seat 301, and a liquid fertilizer temporary storage box 402 is fixedly installed on the front end surface of the connecting plate 401. The stirring box 108 is connected to the liquid fertilizer temporary storage box 402 through the guide pipe 110, and a water tank 403 is fixedly installed on the rear end surface of the connecting plate 401. The inner sides of the bottom ends of the liquid fertilizer temporary storage box 402 and the water tank 403 are both provided with electromagnetic valves, and the battery 306 is electrically connected to the battery valve. The two electromagnetic valves are used to connect and disconnect the diverter seat 505 and the liquid fertilizer temporary storage box 402 and the water tank 403, so as to facilitate the selection of liquid fertilizer or water;

[0033] A control panel 404 is fixedly installed on the upper end surface of the water tank 403, and two water tanks 403 are installed on the rear end surface of the water tank 403. A steering handle 405 is rotatably connected between the two water tanks 403. The water tank 403 is fixedly connected to two handle mounting seats 406. A pin is provided in the middle of the handle mounting seat 406. Both ends of the steering handle 405 are rotatably connected to the two handle mounting seats 406 through the pin. In the process of controlling the direction of the two universal wheels 305 by the steering handle 405, the driving wheel 303 can be used to move the whole body smoothly.

[0034] See also Figure 4 and Figure 6 A multi-directional spraying mechanism 5 is installed on the inner side of the middle part of the driving support rod mechanism 3, and the multi-directional spraying mechanism 5 includes a fixed disk 502, which is fixedly connected to the middle part of the mounting seat 301, and a steering seat 501 is rotatably connected between the fixed disk 502 and the mounting seat 301, and a steering dial 504 is rollingly connected to one side of the fixed disk 502, and a third transmission motor 503 is installed at the bottom end of the steering dial 504, and the bottom end of the third transmission motor 503 is fixedly connected to the steering seat 501, and the output end of the third transmission motor 503 is fixedly connected to the steering dial 504, and the steering dial 504 is in close contact with the side of the fixed disk 502, and the steering seat 501 swings back and forth relative to the center of the fixed disk 502, so as to facilitate the horizontal adjustment of the spraying direction of multiple sprinkler heads 508;

[0035] A diverter seat 505 is fixedly installed in the middle of the lower end surface of the fixed plate 502, and a water pump 506 is fixedly installed on the lower end surface of the diverter seat 505. The upper end of the diverter seat 505 penetrates the fixed plate 502 and the mounting seat 301 and is in close contact with the lower end surfaces of the liquid fertilizer temporary storage box 402 and the water tank 403. The upper end of the diverter seat 505 is connected with the liquid fertilizer temporary storage box 402 and the water tank 403. A diverter paddle is fixedly provided on the inner side of the diverter seat 505, so that the water pump 506 can extract the liquid fertilizer and evenly divert it to the inner side of multiple feeding hoses 507 through the diverter paddle.

[0036] Multiple feeding hoses 507 are installed on both sides of the diverter seat 505, and a spray head 508 is installed at one end of the feeding hose 507. The diverter seat 505 and the multiple spray heads 508 are connected through the feeding hose 507. The spray head 508 can spray liquid fertilizer at multiple points through the diversion of the feeding hose 507. A manipulator 509 is installed between the spray head 508 and the feeding hose 507. Both ends of the steering seat 501 and the multiple spray heads 508 are rotated. The manipulator 509 is composed of a clamp and an electric push rod, which is fixedly connected to the steering seat 501. The output end of the electric push rod is fixedly connected to the spray head 508 through the clamp, so that the electric push rod drives the spray head 508 to swing relative to the steering seat 501 through the clamp, and then the spraying angles of multiple spray heads 508 can be adjusted, thereby realizing multi-angle spraying operation, improving the uniformity of spraying of liquid fertilizer, and covering a wider area.

[0037] When in use, the undiluted liquid fertilizer is injected into the inner side of the liquid storage tank 103 through the feed pipe 104, and the power supply of the docking electric control box 102 is turned on, so that the liquid storage tank 103 conveys the liquid fertilizer to the inner side of the mixing box 108 through the feed elbow 106. A stirring frame is provided inside the mixing box 108, and the output end of the first transmission motor 107 is fixedly connected to the stirring frame. Water is injected into the mixing box 108 through the water inlet pipe 109, and the first transmission motor 107 is started, so that the first transmission motor 107 can continuously dilute and stir the liquid fertilizer through the stirring frame under the support of the mixing box 108. The internal liquid levels of the liquid storage tank 103 and the mixing box 108 can be monitored by the liquid level meter 105, and then the dilution degree of the liquid fertilizer can be monitored, so as to meet the preparation of liquid fertilizers with different dilution degrees;

[0038] The mobile spraying module 2 is moved to the rear end face of the mixing and replenishing base station 1, so that the quick connector provided at the bottom end of the guide tube 110 is connected to the upper end of the liquid fertilizer temporary storage box 402, and then the diluted liquid fertilizer can be guided to the inner side of the liquid fertilizer temporary storage box 402 through the guide tube 110. When fertilizing the liquid fertilizer, the second transmission motor 308 is started, so that the second transmission motor 308 drives the two driving wheels 303 to rotate through the gear set and the transmission shaft 309 under the support of the gear box 307, and then the steering handle 405 is used to control the direction of the two universal wheels 305. The whole can be moved smoothly, and the battery 306 is fixedly installed in the middle of the supporting inclined frame 304, so that the mobile spraying module 2 can be powered by the battery 306 while facilitating counterweighting;

[0039] The upper end of the diverter seat 505 penetrates the fixed plate 502 and the mounting seat 301 and is connected to the liquid fertilizer temporary storage box 402 and the water tank 403. Solenoid valves are provided on the inner sides of the bottom ends of the liquid fertilizer temporary storage box 402 and the water tank 403, so that the diverter seat 505 and the liquid fertilizer temporary storage box 402 and the water tank 403 are connected and disconnected through the two solenoid valves. A diverter paddle is provided on the inner side of the diverter seat 505, and the water pump 506 is started, so that the water pump 506 can extract the liquid fertilizer under the support of the diverter seat 505 and evenly divert it to the inner sides of multiple feeding hoses 507 through the diverter paddle, and then the spray head 508 can spray the liquid fertilizer at multiple points through the diversion of the feeding hose 507;

[0040] The third transmission motor 503 is started, so that the third transmission motor 503 drives the steering dial 504 to rotate under the support of the steering seat 501, and then the steering dial 504 rotates relative to the fixed disk 502, and at the same time, it can drive the steering seat 501 to swing back and forth relative to the center of the fixed disk 502, and the manipulator 509 is composed of an electric push rod and a clamp, so that the electric push rod drives the spray head 508 to swing relative to the steering seat 501 through the clamp, and then the spraying angles of multiple spray heads 508 can be adjusted, so as to realize multi-angle spraying operation, improve the uniformity of spraying of liquid fertilizer, and cover a wider area.

[0041] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A liquid fertilizer application device for rice planting, comprising a mixing and liquid replenishing base station (1) and a mobile spraying module (2), wherein the mobile spraying module (2) is composed of a driving support rod mechanism (3), a liquid storage and regulating mechanism (4) and a multi-directional spraying mechanism (5), characterized in that: A mobile spraying module (2) is installed on the rear end face of the mixing liquid replenishing base station (1); a multi-directional spraying mechanism (5) is installed on the inner side of the middle part of the driving support rod mechanism (3); a liquid storage regulating mechanism (4) is installed on the upper end face of the driving support rod mechanism (3); the driving support rod mechanism (3) comprises a mounting seat (301); a supporting upright frame (302) is fixedly installed on the front end of the mounting seat (301); and a supporting inclined frame (304) is fixedly installed on the rear end of the mounting seat (301); The multi-directional spraying mechanism (5) comprises a fixed plate (502), the fixed plate (502) being fixedly connected to the middle of the mounting seat (301), a steering seat (501) being rotatably connected between the fixed plate (502) and the mounting seat (301), a steering dial (504) being rollingly connected to one side of the fixed plate (502), a third transmission motor (503) being installed at the bottom end of the steering dial (504), a diverter seat (505) being fixedly installed at the middle of the lower end surface of the fixed plate (502), a water pump (506) being fixedly installed at the lower end surface of the diverter seat (505), a plurality of material delivery hoses (507) being installed on both sides of the diverter seat (505), a spray head (508) being installed at one end of the material delivery hose (507), and a manipulator (509) being installed between the spray head (508) and the material delivery hose (507); The mixing and liquid replenishing base station (1) comprises a supporting frame (101), a power connection control box (102) and a liquid storage tank (103) are fixedly mounted on the front end surface of the supporting frame (101), a feeding pipe (104) is provided on one side of the liquid storage tank (103), a material conveying elbow (106) is provided on the other side of the liquid storage tank (103), a stirring box (108) is fixedly mounted on the upper end of the material conveying elbow (106), a flow guide pipe (110) is fixedly mounted on the rear end surface of the stirring box (108), and liquid level gauges (105) are mounted on the inner sides of the upper ends of the liquid storage tank (103) and the stirring box (108), a first transmission motor (107) is mounted on one side of one of the liquid level gauges (105), and a water inlet pipe (109) is mounted on one side of the first transmission motor (107).

2. A liquid fertilizer application device for rice planting according to claim 1, characterized in that: The driving support rod mechanism (3) further comprises two driving wheels (303) rotatably connected to the bottom end of the supporting stand (302); a transmission shaft (309) is fixedly mounted between the two driving wheels (303); a gear box (307) is mounted on the outer side of one end of the transmission shaft (309); a second transmission motor (308) is fixedly mounted on one side of the gear box (307); a battery (306) is fixedly mounted in the middle of the supporting inclined frame (304); and the bottom end of the supporting inclined frame (304) is rotatably connected to two universal wheels (305).

3. A liquid fertilizer application device for rice planting according to claim 2, characterized in that: The liquid storage regulating mechanism (4) comprises a connecting plate (401), the bottom end of the connecting plate (401) is fixedly connected to the mounting seat (301), a liquid fertilizer temporary storage box (402) is fixedly mounted on the front end surface of the connecting plate (401), a water tank (403) is fixedly mounted on the rear end surface of the connecting plate (401), a control panel (404) is fixedly mounted on the upper end surface of the water tank (403), two water tanks (403) are mounted on the rear end surface of the water tank (403), and a steering handle (405) is rotatably connected between the two water tanks (403).

4. The liquid fertilizer application device for rice planting according to claim 1, characterized in that: The liquid storage tank (103) is connected to the mixing tank (108) via a feed elbow (106); the mixing tank (108) is fixedly connected to the support frame (101); a mixing frame is provided inside the mixing tank (108); the first transmission motor (107) is fixedly connected to the upper end of the mixing tank (108); the output end of the first transmission motor (107) is plugged into the inner side of the mixing tank (108) and fixedly connected to the mixing frame; the mixing tank (108) is connected to the liquid fertilizer temporary storage tank (402) via a guide pipe (110).

5. The liquid fertilizer application device for rice planting according to claim 2, characterized in that: The gear box (307) is fixedly connected to the bottom end of the supporting stand (302); a gear set is provided inside the gear box (307); the output end of the second transmission motor (308) is plugged into the inside of the gear box (307) and is connected to the transmission shaft (309) through the gear set.

6. The liquid fertilizer application device for rice planting according to claim 3, characterized in that: The water tank (403) is fixedly connected to the two handle mounting seats (406); a pin is provided in the middle of the handle mounting seats (406); both ends of the steering handle (405) are rotatably connected to the two handle mounting seats (406) via the pin; solenoid valves are provided on the inner sides of the bottom ends of the liquid fertilizer temporary storage box (402) and the water tank (403); and the battery (306) is electrically connected to the battery valve.

7. The liquid fertilizer application device for rice planting according to claim 2, characterized in that: The bottom end of the third transmission motor (503) is fixedly connected to the steering seat (501), the output end of the third transmission motor (503) is fixedly connected to the steering dial wheel (504), the steering dial wheel (504) is in close contact with the side of the fixed disk (502), and the steering seat (501) swings back and forth relative to the center of the fixed disk (502).

8. The liquid fertilizer application device for rice planting according to claim 7, characterized in that: The upper end of the diverter seat (505) penetrates the fixed plate (502) and the mounting seat (301) and is in close contact with the lower end surfaces of the liquid fertilizer temporary storage box (402) and the water tank (403); the upper end of the diverter seat (505) is in continuous connection with the liquid fertilizer temporary storage box (402) and the water tank (403); a diverter paddle is fixedly provided on the inner side of the diverter seat (505); and the diverter seat (505) and the plurality of spray heads (508) are in continuous connection with each other via a material delivery hose (507).

9. The liquid fertilizer application device for rice planting according to claim 8, characterized in that: Both ends of the steering seat (501) are rotatably connected to a plurality of spray heads (508); the manipulator (509) is composed of a clamp and an electric push rod; the electric push rod is fixedly connected to the steering seat (501); and the output end of the electric push rod is fixedly connected to the spray head (508) via the clamp.

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