Portable pesticide spraying device for agricultural commercial crops

By designing an automatic pressurization system for the frame, wheels, and transmission components, the problems of carrying and pressurization in existing devices have been solved, achieving efficient spraying and convenient transportation.

CN223786967UActive Publication Date: 2026-01-13JIANGSU CHAODA INTELLIGENT TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202422866468.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-25
Publication Date
2026-01-13
Estimated Expiration
2034-11-25

AI Technical Summary

Technical Problem

Existing portable agricultural and cash crop spraying devices require farmers to carry the spraying device for long periods of time, and the pressurized operation is inconvenient, resulting in high labor intensity and low efficiency.

Method used

A portable spraying device comprising a frame, wheels, a transmission assembly, and a spraying assembly was designed. The automatic pressurization is achieved by the chain and chain drive system driven by the wheels. Combined with the foldable extension rod and spraying assembly, it enables push-pull operation, reducing the need for manual carrying and frequent pressurization.

Benefits of technology

It improves the efficiency of the spraying process, reduces the workload of farmers, and facilitates transportation and storage through automatic pressurization and a foldable design.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a portable agricultural commercial crop pesticide spraying device, which belongs to the technical field of agricultural pesticide spraying equipment and comprises a frame, wheels, a transmission component and a spraying component are arranged in the frame, a handlebar and supporting legs are arranged at one end of the frame, and a pesticide storage tank and a shell are arranged at the position, close to the wheels, of the frame. Through the arrangement of the frame, the device can be pushed and pulled through the handle during use, a pesticide storage tank does not need to be carried on the back, through the arrangement of the transmission assembly, the movable rod and the piston pump are driven to do reciprocating motion in the vertical direction through the combined action of the wheels, the chain disc and the rotating rod in the moving process, and pesticide is pumped into the atomizing nozzle; the automatic pressurizing function in the moving process is achieved, by arranging the spraying assembly, an extension rod can be rotated and locked, the function of reducing occupied space during storage is achieved, and then the effect of facilitating transportation and storage is achieved.
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Description

Technical Field

[0001] This utility model relates to the field of agricultural spraying equipment technology, and in particular to a convenient spraying device for agricultural economic crops. Background Technology

[0002] Agricultural cash crops refer to crops that can produce economic benefits, including cotton, hemp, sesame, etc. During the growth process of agricultural cash crops, pesticides need to be sprayed on the planting fields for weeding or pest control.

[0003] Existing portable agricultural and cash crop spraying devices adopt a backpack design, which requires farmers to carry the spraying device for a long time when spraying pesticides, resulting in high work intensity and low work efficiency.

[0004] Existing portable agricultural crop spraying devices use manual pressurization, requiring farmers to frequently operate levers to increase pressure during spraying, which is inconvenient. Utility Model Content

[0005] The purpose of this invention is to solve the problems of inconvenience in the existing agricultural spraying equipment, which requires carrying the spraying device for long periods of time and operating under pressure. Therefore, this invention proposes a convenient agricultural and economic crop spraying device.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A portable agricultural crop spraying device includes a frame, with a wheel rotatably connected to one end of the frame and a handlebar at the other end. Support legs are located at the bottom of the frame corresponding to the handlebar. A transmission assembly and a spraying assembly are located in the middle section of the frame. A housing is fixedly installed near the wheel on the frame. The housing includes a base, and a positioning rod, a protective plate, and a mounting seat are provided on the surface of the base. A pesticide storage tank is placed between the positioning rods. A top cover is fixedly connected to the top of the positioning rods and the protective plate. A sealing cap is threaded to the top of one end of the pesticide storage tank, and a piston pump is located at the top of the other end of the pesticide storage tank.

[0008] Preferably, the frame is composed of several hollow square tubes welded together, and screw holes are provided on both sides of the frame corresponding to the base.

[0009] Preferably, the transmission assembly includes a rotating rod and a second chain plate. The two ends of the rotating rod are rotatably connected to the frame. One end of the rotating rod passes through the frame and is fixedly connected to a first chain plate. The other end of the rotating rod passes through the frame and is fixedly connected to a connecting rod. The second chain plate passes through the frame and is fixedly connected to one end of the wheel. A chain is provided between the first chain plate and the second chain plate. The gear ratio between the first chain plate and the second chain plate is set to 3:1.

[0010] Preferably, the output end of the connecting rod is rotatably connected to the mounting base, a socket is provided on one side of the connecting rod, a movable rod is inserted into the socket, and the other end of the movable rod is rotatably connected to the top of the piston pump.

[0011] Preferably, the spraying assembly includes a support rod and a water pipe. The bottom end of the support rod is welded to the surface of the frame, and a mounting plate is welded to the top end of the support rod. A sleeve is provided through the center of the mounting plate. A locking hole is provided on one side of the sleeve. An extension rod is rotatably connected inside the sleeve. Through holes are provided on the four walls of the extension rod corresponding to the locking hole. Multiple atomizing nozzles are provided on the outer wall of the extension rod. The input end of the atomizing nozzle is connected to the output end of the piston pump through a water pipe.

[0012] Preferably, the surface of the mounting plate corresponding to the locking hole is provided with a bolt, and the surface of the mounting plate corresponding to the bolt is provided with a limiting plate.

[0013] Preferably, the bottom of the base is provided with a slot for matching the frame, and through holes are provided on both sides of the slot corresponding to the screw holes of the frame.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] 1. With the combined action of the frame, wheels, handle, and base, the pesticide storage tank can be installed on the base surface. When in use, the spraying device can be pushed and pulled by the handle, eliminating the need for farmers to carry the pesticide storage tank for extended periods.

[0016] 2. This utility model, by setting up a transmission component, can automatically pressurize without a drive device. By holding the handlebars and pushing or pulling the frame, the wheels drive the frame to move. During the movement, the wheels drive the second chain to rotate, and the second chain drives the first chain to rotate via a chain. The first chain drives the connecting rod to rotate via a rotating rod. When the connecting rod rotates, it drives the movable rod to reciprocate. The movable rod drives the piston pump to reciprocate vertically. The piston pump pumps the medicine from the water pipe into the atomizing nozzle, realizing the function of automatic pressurization during movement and improving work efficiency.

[0017] 3. This utility model, by setting up a spraying component, can evenly spray pesticides and fold the equipment through the extension rod. When spraying is needed, the extension rod is rotated to an angle perpendicular to the frame, and the bolt is inserted through the through hole of the extension rod into the locking hole to complete the locking. When storage is needed, the extension rod is rotated to an angle parallel to the frame and locked by the bolt. This realizes the function of reducing space occupation when storing, thereby achieving the effect of facilitating transportation and storage. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of a convenient agricultural and economic crop spraying device proposed in this utility model;

[0019] Figure 2 This is a schematic diagram of the working state of a convenient agricultural and economic crop spraying device proposed in this utility model.

[0020] Figure 3 This is an enlarged view of the structure at point A in diagram 2;

[0021] Figure 4 This is an assembly drawing of the pesticide storage tank and shell in a convenient agricultural and economic crop spraying device proposed in this utility model.

[0022] Figure 5 This is a schematic diagram of the transmission component in a convenient agricultural and economic crop spraying device proposed in this utility model.

[0023] Figure 6 This is a schematic diagram of the spraying component in a convenient agricultural and economic crop spraying device proposed in this utility model.

[0024] In the diagram: 1. Frame; 2. Wheel; 3. Handlebar; 4. Base; 5. Positioning rod; 6. Protective plate; 7. Mounting seat; 8. Top cover; 9. Medicine tank; 10. Sealing cover; 11. Piston pump; 12. Rotating rod; 13. First chainring; 14. Connecting rod; 15. Second chainring; 16. Chain; 17. Insertion hole; 18. Movable rod; 19. Support rod; 20. Water pipe; 21. Mounting plate; 22. Sleeve; 23. Locking hole; 24. Extension rod; 25. Through hole; 26. Atomizing nozzle; 27. Bolt; 28. Limiting plate; 29. ​​Slot. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0026] Reference Figure 1-6 A convenient agricultural crop spraying device includes a frame 1, with a wheel 2 rotatably connected to one end of the frame 1, a handlebar 3 at the other end of the frame 1, a support foot at the bottom of the frame 1 corresponding to the handlebar 3, a transmission component and a spraying component in the middle section of the frame 1, a housing fixedly installed near the wheel 2 on the frame 1, the housing including a base 4, a positioning rod 5, a guard plate 6 and a mounting seat 7 on the surface of the base 4, a pesticide storage tank 9 placed between the positioning rods 5, a top cover 8 fixedly connected to the top of the positioning rods 5 and the guard plate 6, a sealing cap 10 threadedly connected to the top of one end of the pesticide storage tank 9, and a piston pump 11 installed on the top of the other end of the pesticide storage tank 9.

[0027] It should be noted that: wheel 2 needs to be fitted with field tires, and handlebar 3 has a handle cover attached to the handle. When this portable agricultural and economic crop spraying device is stored, the device is kept upright by having the outriggers in contact with the ground, and the combined action of wheel 2 and outriggers.

[0028] Furthermore, the frame 1 is composed of several hollow square tubes welded together, and screw holes are provided on both sides of the frame 1 corresponding to the base 4.

[0029] Furthermore, the transmission assembly includes a rotating rod 12 and a second chain disk 15. Both ends of the rotating rod 12 are rotatably connected to the frame 1. One end of the rotating rod 12 passes through the frame 1 and is fixedly connected to a first chain disk 13. The other end of the rotating rod 12 passes through the frame 1 and is fixedly connected to a connecting rod 14. The second chain disk 15 passes through the frame 1 and is fixedly connected to one end of the wheel 2. A chain 16 is provided between the first chain disk 13 and the second chain disk 15. The gear ratio between the first chain disk 13 and the second chain disk 15 is set to 3:1. The output end of the connecting rod 14 is rotatably connected to the mounting base 7. A socket 17 is provided on one side of the connecting rod 14. A movable rod 18 is inserted into the socket 17. The other end of the movable rod 18 is rotatably connected to the top of the piston pump 11.

[0030] It should be noted that the piston pump 11 is existing technology. When only the equipment needs to be moved, press the bottom end of the movable rod 18 by hand. The movable rod 18 bends due to its flexibility and moves away from the insertion hole 17. Then move the bottom end of the movable rod 18 to the outside of the connecting rod 14, so that the connecting rod 14 loses its driving effect on the piston pump 11. When spraying, simply reset the movable rod 18.

[0031] A further advantage of the above is that by holding the handlebar 3 and pushing or pulling the frame 1, the frame 1 is moved by the handlebar 3 via the wheel 2. During the movement, the wheel 2 drives the second chain 15 to rotate, and the second chain 15 drives the first chain 13 to rotate via the chain 16. The first chain 13 drives the connecting rod 14 to rotate via the rotating rod 12. When the connecting rod 14 rotates, it drives the movable rod 18 to reciprocate. The movable rod 18 drives the piston pump 11 to reciprocate vertically. The piston pump 11 pumps the medicine from the water pipe 20 into the atomizing nozzle 26. By setting the gear ratio at 3:1, the wheel 2 can drive the piston pump 11 to move in a short-stroke, high-frequency manner when moving. This mode of movement reduces the resistance when pushing the equipment and realizes the function of automatic pressurization during movement.

[0032] Furthermore, the spraying assembly includes a support rod 19 and a water pipe 20. The bottom end of the support rod 19 is welded to the surface of the frame 1, and a mounting plate 21 is welded to the top end of the support rod 19. A sleeve 22 is provided through the center of the mounting plate 21. A locking hole 23 is provided on one side of the sleeve 22. An extension rod 24 is rotatably connected inside the sleeve 22. Through holes 25 are provided on the four walls of the extension rod 24 corresponding to the locking hole 23. Multiple atomizing nozzles 26 are provided on the outer wall of the extension rod 24. The input end of the atomizing nozzle 26 is connected to the output end of the piston pump 11 through the water pipe 20. A plug 27 is provided on the surface of the mounting plate 21 corresponding to the locking hole 23, and a limit plate 28 is provided on the surface of the mounting plate 21 corresponding to the plug 27.

[0033] It should be noted that: a gap is provided between the limiting plates 28 to match the insertion and withdrawal states of the plug 27, which is used to limit the plug 27. The atomizing nozzle 26 is existing technology. Under the combined action of the extension rod 24 and the atomizing nozzle 26, the spray coverage area can be increased.

[0034] A further advantage of the above is that when spraying is required, the extension rod 24 is rotated to an angle perpendicular to the frame 1, and the locking hole 23 is inserted through the through hole 25 of the extension rod 24 by the bolt 27 to complete the locking. When storage is required, the extension rod 24 is rotated to an angle parallel to the frame 1 and locked by the bolt 27, which realizes the function of reducing space occupation when storing, thereby achieving the effect of facilitating transportation and storage.

[0035] Furthermore, the bottom of the base 4 is provided with a slot 29 for matching the frame 1, and through holes 25 are provided on both sides of the slot 29 corresponding to the screw holes of the frame 1.

[0036] It should be noted that a reinforcing mesh is provided between the card slots 29.

[0037] When using this utility model, the frame 1 is lifted by the handlebar 3 so that the support legs are off the ground. If there is a certain distance from the field, the bottom end of the movable rod 18 is pressed by hand. The movable rod 18 bends due to its flexibility and moves away from the insertion hole 17. The bottom end of the movable rod 18 is moved to the outside of the connecting rod 14 so that the connecting rod 14 loses its driving effect on the piston pump 11. Then the device is pushed to the working area and the movable rod 18 is reset.

[0038] Before spraying, rotate the extension rod 24 to the angle of the vertical frame 1, and insert the bolt 27 through the through hole 25 of the extension rod 24 into the locking hole 23 to complete the locking. Then push or pull the handlebar 3 to move the equipment. When the equipment moves, the wheel 2 drives the second chain 15 to rotate. The second chain 15 drives the first chain 13 to rotate through the chain 16. The first chain 13 drives the connecting rod 14 to rotate through the rotating rod 12. When the connecting rod 14 rotates, it drives the movable rod 18 to reciprocate. The movable rod 18 drives the piston pump 11 to reciprocate in the vertical direction. The piston pump 11 pumps the medicine into the atomizing nozzle 26 through the water pipe 20. By setting the gear ratio at a ratio of 3:1, the wheel 2 can drive the piston pump 11 to move in a short stroke and high frequency mode when moving. This mode of movement reduces the resistance when pushing the equipment and maintains the spray quality, realizing the function of automatic pressurization during movement.

[0039] After spraying, the extension rod 24 is rotated to the angle parallel to the frame 1 and locked by the bolt 27, making it easy to place in the rear basket of the electric tricycle during transportation and reducing the space occupied during storage.

[0040] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A portable agricultural economic crop pesticide spraying device comprising a frame (1), characterized in that, The frame (1) is rotatably connected with a wheel (2) at one end, and is provided with a handle (3) at the other end, and is provided with a support at the bottom corresponding to the handle (3), and is provided with a transmission assembly and a spraying assembly at the middle section, and is fixedly installed with a shell close to the wheel (2), and the shell comprises a base (4), and the surface of the base (4) is provided with a positioning rod (5), a guard plate (6) and a mounting seat (7), and the positioning rod (5) is placed with a medicine storage tank (9) between the positioning rod (5) and the guard plate (6), and the top of the positioning rod (5) and the guard plate (6) is fixedly connected with a top cover (8), and the top of one end of the medicine storage tank (9) is threadedly connected with a sealing cover (10), and the top of the other end of the medicine storage tank (9) is provided with a piston pump (11).

2. The portable agricultural economic crop pesticide spraying device according to claim 1, characterized in that: The frame (1) is composed of several hollow square tubes welded together, and screw holes are formed on both sides of the frame (1) corresponding to the base (4).

3. The portable agricultural economic crop pesticide spraying device according to claim 1, characterized in that: The transmission assembly comprises a rotating rod (12) and a second chain disc (15), both ends of the rotating rod (12) are rotatably connected with the frame (1), one end of the rotating rod (12) is fixedly connected with a first chain disc (13) penetrating through the frame (1), the other end of the rotating rod (12) is fixedly connected with a connecting rod (14) penetrating through the frame (1), the second chain disc (15) is fixedly connected with one end of the wheel (2) penetrating through the frame (1), a chain (16) is arranged between the first chain disc (13) and the second chain disc (15), and the gear ratio of the first chain disc (13) and the second chain disc (15) is 3:

1.

4. The portable agricultural economic crop pesticide spraying device according to claim 3, characterized in that: The output end of the connecting rod (14) is rotatably connected with the mounting seat (7), a bushing (17) is formed on one side of the connecting rod (14), a movable rod (18) is inserted into the bushing (17), and the other end of the movable rod (18) is rotatably connected with the top end of the piston pump (11).

5. The portable agricultural economic crop pesticide spraying device according to claim 1, characterized in that: The spraying assembly comprises a support rod (19) and a water pipe (20), the bottom end of the support rod (19) is welded with the surface of the frame (1), the top end of the support rod (19) is welded with a mounting plate (21), the center of the mounting plate (21) is provided with a sleeve (22), a locking hole (23) is formed on one side of the sleeve (22), a movable rod (24) is rotatably connected in the sleeve (22), a through hole (25) is formed on the four walls of the sleeve (22) corresponding to the locking hole (23), a plurality of atomizing nozzles (26) are arranged on the outer wall of the movable rod (24), and the input end of the atomizing nozzle (26) is connected with the output end of the piston pump (11) through the water pipe (20).

6. The portable agricultural economic crop pesticide spraying device according to claim 5, characterized in that: The surface of the mounting plate (21) corresponding to the locking hole (23) is provided with a plug (27), and the surface of the mounting plate (21) corresponding to the plug (27) is provided with a limiting plate (28).

7. The portable agricultural economic crop pesticide spraying device according to claim 2, characterized in that: The bottom of the base (4) is provided with a clamping groove (29) matched with the frame (1), and through holes (25) are formed in the clamping groove (29) corresponding to the screw holes of the frame (1).