A high-efficiency pesticide spraying device for rice cultivation

By designing a high-efficiency spraying device that includes a base plate, a back frame, a spraying rod, and a spraying pump, the problems of high labor intensity and uneven spraying in rice cultivation spraying devices are solved. It achieves uniform spraying over large areas and reduces labor intensity, making it suitable for small-scale farmland operations.

CN224386582UActive Publication Date: 2026-06-23GUANGDONG OCEAN UNIVERSITY
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGDONG OCEAN UNIVERSITY
Filing Date
2025-07-29
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

Existing rice cultivation spraying devices are labor-intensive, have uneven spraying range, and limited single spraying area. Traditional drone spraying devices have limited pesticide capacity and limited single spraying area.

Method used

A high-efficiency spraying device was designed, comprising a base plate, a back frame, a spray bar, a nozzle, a spray pump, and a delivery hose. The spray bar can be extended to expand the coverage area by carrying it on the back strap, the nozzle angle can be adjusted, and the spray pump and hose can be combined to quickly deliver the pesticide solution to meet the needs of field operations.

Benefits of technology

It improves spraying efficiency and flexibility, reduces labor burden, sprays evenly and covers a large area in a single application, is suitable for small-scale farmland operations, and reduces fatigue from long-term work.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224386582U_ABST
    Figure CN224386582U_ABST
Patent Text Reader

Abstract

The utility model relates to pesticide spraying device technical field discloses a kind of high-efficiency pesticide spraying devices for rice cultivation, including substrate and back frame, the upper surface of substrate is fixedly connected with side block in the position close to both ends, the inside rotationally connected with triangle connecting plate in side block, the bottom fixedly connected with extension plate in triangle connecting plate, the upper surface of substrate is fixedly connected with shaft seat, the inside rotationally connected with first spray rod in shaft seat, the both ends of first spray rod are threadedly connected with bellows.The utility model significantly improves pesticide spraying efficiency and flexibility, and is suitable for small inconvenient mechanization farmland operation, through pesticide spraying pump, conveying hose and other components cooperation, pesticide solution can be quickly conveyed to multiple spray head and sprayed out;Different model spray head can be replaced, and the spray head elevation angle can be adjusted by rocker, to control pesticide spraying distance and range;When spraying pesticide, spray rod is unfolded to expand coverage area, and after finishing, it is folded to reduce length, which is convenient for carrying, to adapt to field operation demand.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of spraying device technology, specifically a high-efficiency spraying device for rice cultivation. Background Technology

[0002] Rice, as one of the world's most important food crops, is the main food source for more than half of the population. Its yield and quality are directly related to food security and agricultural economic development. In rice cultivation, pest and disease control is a crucial link in ensuring a good harvest. Common pests and diseases such as rice blast, sheath blight, and rice stem borer can spread rapidly, causing leaf wilting, reduced grain filling rate, and even plant death. Therefore, timely application of pesticides through spraying is necessary to inhibit the spread of pests and diseases and ensure normal rice growth.

[0003] Existing traditional manual sprayers rely on manual carrying, which is not only labor-intensive and limits the area that a single person can cover, but also results in uneven spraying. While some mechanized spraying equipment, such as drones, is convenient, the limited spraying capacity of drones restricts the area that can be covered in a single application. We propose a high-efficiency spraying device for rice cultivation to address these problems. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a high-efficiency spraying device for rice cultivation, which has the advantages of wide spraying range, uniform spraying, and large single spraying area, thus solving the aforementioned technical problems.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a high-efficiency spraying device for rice cultivation, comprising a base plate and a back frame. Side blocks are fixedly connected to the upper surface of the base plate near both ends. Triangular connecting plates are rotatably connected to the interior of the side blocks. An extension plate is fixedly connected to the bottom of the triangular connecting plates. A bearing seat is fixedly connected to the upper surface of the base plate. A first spraying rod is rotatably connected to the interior of the bearing seat. Corrugated pipes are threaded to both ends of the first spraying rod. A second spraying rod is threaded to one end of the corrugated pipe. Spray nozzles are threaded to the outer walls of both the first and second spraying rods. A rocker arm is fixedly connected to the outer wall of the first spraying rod, and a T-shaped valve is threaded to one end of the first spraying rod. A delivery hose is threaded to the middle section of the T-shaped valve. Ear blocks are fixedly connected to the top and bottom of the back frame. A carrying strap is sewn into the ear blocks. A handrail is bolted to the outer surface of the back frame near the bottom.

[0008] Preferably, a collar is fixedly connected to the end of the handrail away from the back frame, the back frame is I-shaped, and two insert rods are fixedly connected to the lower surface of the base plate, with the outer diameter of the insert rods and the inner diameter of the collar fitting together with a clearance.

[0009] Preferably, the end of the delivery hose away from the T-shaped valve is connected to the spraying pump, the bottom surface of the spraying pump is fixedly connected to a trolley, the top surface of the trolley is bolted to a winding reel, and the outer surface of the winding reel is wound with the delivery hose.

[0010] Preferably, a medicine barrel is fixedly connected to the upper surface of the cart, and a suction tube is inserted into the inside of the medicine barrel. The end of the suction tube away from the medicine barrel is connected to the inlet of the spraying pump.

[0011] Preferably, both ends of the T-shaped valve are threadedly connected to a first spray rod, the end of the second spray rod away from the bellows is closed, and multiple nozzles are threadedly connected at equal intervals on the outer walls of the first and second spray rods.

[0012] Preferably, a bearing seat is fixedly connected to the upper surface of both the substrate and the extension plate, and a second spraying rod is rotatably connected inside the bearing seat on the upper surface of the extension plate.

[0013] Compared with the prior art, this utility model provides a high-efficiency spraying device for rice cultivation, which has the following beneficial effects:

[0014] 1. This utility model significantly improves spraying efficiency and flexibility, and is suitable for small-scale farmland operations that are inconvenient to mechanize. With the cooperation of components such as spray pump and delivery hose, the liquid pesticide can be quickly delivered to multiple nozzles for spraying. Different models of nozzles can be replaced, and the nozzle elevation angle can be adjusted by a rocker arm to control the spraying distance and range. When spraying, the spraying rod can be unfolded to expand the coverage area, and after the spraying is finished, it can be folded up to reduce the length for easy carrying, thus meeting the needs of field operations.

[0015] 2. This utility model can effectively reduce the labor burden of spraying personnel. Spraying personnel can carry the back frame with a shoulder strap, and then insert the bottom stick of the base plate into the collar, so that the base plate and spraying-related components can be hung on the handrail. There is no need to carry the medicine box and hold the spray pipe all the time, making the spraying process more labor-saving and reducing fatigue during long-term work. Attached Figure Description

[0016] Figure 1 This is a three-dimensional schematic diagram of the components of this utility model, including the cart, medicine barrel, and spraying pump.

[0017] Figure 2 This is a three-dimensional schematic diagram of the components such as the first spray bar and the second spray bar in this utility model;

[0018] Figure 3 This utility model Figure 2A magnified view of part A in the diagram;

[0019] Figure 4 This is a three-dimensional schematic diagram of the back frame, straps, and handrails in this utility model.

[0020] The components are: 1. Base plate; 2. Side block; 3. Triangular connecting plate; 4. Extension plate; 5. Shaft seat; 6. First spray bar; 7. Corrugated pipe; 8. Second spray bar; 9. Nozzle; 10. Rocker arm; 11. T-valve; 12. Delivery hose; 13. Back frame; 14. Ear block; 15. Shoulder strap; 16. Handrail; 17. Collar; 18. Spray pump; 19. Trolley; 20. Reel; 21. Medicine tank; 22. Suction pipe. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figures 1-4 A high-efficiency spraying device for rice cultivation includes a base plate 1 and a back frame 13. Side blocks 2 are fixedly connected to the upper surface of the base plate 1 near both ends. Triangular connecting plates 3 are rotatably connected inside the side blocks 2. An extension plate 4 is fixedly connected to the bottom of the triangular connecting plates 3. A bearing seat 5 is fixedly connected to the upper surface of the base plate 1. A first spraying rod 6 is rotatably connected inside the bearing seat 5. Corrugated pipes 7 are threaded to both ends of the first spraying rod 6. A second spraying rod 8 is threaded to one end of the corrugated pipe 7. Spray nozzles 9 are threaded to the outer walls of both the first spraying rod 6 and the second spraying rod 8. A rocker arm 10 is fixedly connected to the outer wall of the first spraying rod 6. A T-shaped valve 11 is threaded to one end of the first spraying rod 6. A delivery hose 12 is threaded to the middle section of the T-shaped valve 11. Ear blocks 14 are fixedly connected to the top and bottom ends of the back frame 13. A carrying strap 15 is sewn into the ear blocks 14. A handrail 16 is bolted to the outer surface of the back frame 13 near the bottom.

[0023] Specifically, a collar 17 is fixedly connected to the end of the handrail 16 away from the back frame 13. The back frame 13 is I-shaped, and two insert rods are fixedly connected to the lower surface of the base plate 1. The outer diameter of the insert rods and the inner diameter of the collar 17 are in clearance fit.

[0024] The advantage is that the sprayer can carry the back frame 13 on their back using the shoulder strap 15, and then insert the two inserts on the bottom of the base plate 1 into the collar 17. This allows the sprayer to hang the base plate 1, the first spraying rod 6, and the second spraying rod 8 on the top of the two handrails 16. During the spraying process, the sprayer walks in the field, which moves the first spraying rod 6 and the second spraying rod 8 in the field. Compared with the traditional manual spraying method, this avoids the need for the sprayer to carry the pesticide box and hold the spray pipe all the time, thus reducing the labor burden to a certain extent.

[0025] Specifically, the end of the delivery hose 12 away from the T-shaped valve 11 is connected to the spraying pump 18. A trolley 19 is fixedly connected to the bottom surface of the spraying pump 18. A take-up reel 20 is bolted to the top surface of the trolley 19. The delivery hose 12 is wound around the outer surface of the take-up reel 20.

[0026] Specifically, a medicine tank 21 is fixedly connected to the upper surface of the cart 19, and a suction tube 22 is inserted into the inside of the medicine tank 21. The end of the suction tube 22 away from the medicine tank 21 is connected to the inlet of the medicine pump 18.

[0027] The advantage is that by preparing the pesticide solution in the pesticide tank 21, and then starting the spraying pump 18, the pesticide solution is drawn from the pesticide tank 21 through the suction pipe 22 into the delivery hose 12. By connecting the delivery hose 12 to the T-shaped valve 11, when the T-shaped valve 11 is opened, the pesticide solution can enter the first spray bar 6, and then enter the second spray bar 8 through the corrugated pipe 7. Finally, it is sprayed out through multiple nozzles 9, thereby spraying pesticides on rice. Since the nozzles 9 are threadedly connected to the first spray bar 6 and the second spray bar 8, the model of the nozzle 9 can be replaced.

[0028] Specifically, both ends of the T-shaped valve 11 are threadedly connected to a first spray rod 6, and the end of the second spray rod 8 away from the bellows 7 is closed. Multiple nozzles 9 are threadedly connected at equal intervals on the outer walls of the first spray rod 6 and the second spray rod 8.

[0029] Specifically, a bearing seat 5 is fixedly connected to the upper surface of both the base plate 1 and the extension plate 4, and the second spraying rod 8 is rotatably connected inside the bearing seat 5 on the upper surface of the extension plate 4.

[0030] The advantages are that by pulling the delivery hose 12, it can be released from the reel 20. As the sprayer moves, the delivery hose 12 extends, allowing components such as the first spray bar 6 and the second spray bar 8 to move with the sprayer in the field. Because of the bearing 5, the first and second spray bars 6 and 8 can be rotated by holding two rockers 10, causing multiple nozzles 9 to rotate as well. This allows adjustment of the nozzle angle during spraying, facilitating control of the spraying distance and area. After spraying, flipping the extension plate 4 causes the triangular connecting plate 3 to rotate around the axis connected to the side block 2. The corrugated pipe 7 allows the extension plate 4 to fold up the second spray bar 8, reducing the total length between the first and second spray bars 6 and 8 for easier carrying. During spraying, the extension plate 4 can be unfolded, aligning the first and second spray bars 6 and 8, greatly increasing the spraying area and allowing a single spray to cover a large rice paddy area.

[0031] In use, first, prepare the pesticide solution in the pesticide tank 21 according to the ratio, insert the suction tube 22 into the pesticide tank 21, and ensure that the suction tube 22 is tightly connected to the inlet of the spraying pump 18; then, the spraying personnel carry the back frame 13 on their back using the shoulder strap 15, insert the two inserts on the lower surface of the base plate 1 into the collar 17 at the end of the handrail 16, and complete the assembly of the base plate 1 and related components with the back frame 13; then, unfold the extension plate 4, so that it drives the triangular connecting plate 3 to rotate around the side block 2 to a suitable position, so that the first spray bar 6 and the second spray bar 8 are aligned, and select the appropriate type of nozzle 9 according to the spraying requirements, and install it on the outer wall of the first spray bar 6 and the second spray bar 8 respectively; then, connect one end of the delivery hose 12 to the middle of the T-shaped valve 11. One end is connected to the other end, which is wound around the take-up reel 20 and connected to the spray pump 18. The T-valve 11 is opened and the spray pump 18 is started. The pesticide enters the first spray bar 6 through the suction pipe 22, the spray pump 18, and the delivery hose 12, and then flows into the second spray bar 8 through the corrugated pipe 7. Finally, it is sprayed out from each nozzle 9. The sprayer walks in the field holding the handrail 16. During the process, the delivery hose 12 can be pulled to release it from the take-up reel 20. At the same time, the hand crank 10 is used to rotate the first spray bar 6 and the second spray bar 8 to adjust the elevation angle of the nozzle 9 to control the spraying distance and range. After spraying, the spray pump 18 and the T-valve 11 are closed. The extension plate 4 is flipped to drive the second spray bar 8 to fold, reducing the overall length, and the device is tidied up for easy carrying.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency spraying device for rice cultivation, comprising a base plate (1) and a back frame (13), characterized in that: Side blocks (2) are fixedly connected to the upper surface of the substrate (1) near both ends. A triangular connecting plate (3) is rotatably connected inside the side blocks (2). An extension plate (4) is fixedly connected to the bottom of the triangular connecting plate (3). A bearing seat (5) is fixedly connected to the upper surface of the substrate (1). A first spray rod (6) is rotatably connected inside the bearing seat (5). A bellows (7) is threaded to both ends of the first spray rod (6). A second spray rod (8) is threaded to one end of the bellows (7). The first spray rod (6) and the second spray rod (8) are connected to each other. The outer walls of the two spray rods (8) are threaded with nozzles (9), the outer walls of the first spray rod (6) are fixedly connected with rocker arms (10), and one end of the first spray rod (6) is threaded with a T-shaped valve (11). The middle section of the T-shaped valve (11) is threaded with a delivery hose (12). The top and bottom ends of the back frame (13) are fixedly connected with lugs (14), and the lugs (14) are sewn together with shoulder straps (15). The outer surface of the back frame (13) near the bottom is bolted with a handrail (16).

2. The high-efficiency spraying device for rice cultivation according to claim 1, characterized in that: The handrail (16) is fixedly connected to a collar (17) at the end away from the back frame (13). The back frame (13) is I-shaped. Two insert rods are fixedly connected to the lower surface of the base plate (1). The outer diameter of the insert rods and the inner diameter of the collar (17) are in clearance fit.

3. The high-efficiency spraying device for rice cultivation according to claim 1, characterized in that: The end of the delivery hose (12) away from the T-shaped valve (11) is connected to the spraying pump (18). A trolley (19) is fixedly connected to the bottom surface of the spraying pump (18). A take-up reel (20) is bolted to the top surface of the trolley (19). The delivery hose (12) is wound around the outer surface of the take-up reel (20).

4. The high-efficiency spraying device for rice cultivation according to claim 3, characterized in that: A medicine barrel (21) is fixedly connected to the upper surface of the cart (19). A suction tube (22) is inserted into the inside of the medicine barrel (21). The end of the suction tube (22) away from the medicine barrel (21) is connected to the inlet of the medicine pump (18).

5. The high-efficiency spraying device for rice cultivation according to claim 1, characterized in that: Both ends of the T-shaped valve (11) are threadedly connected to a first spray rod (6), and the end of the second spray rod (8) away from the bellows (7) is closed. Multiple nozzles (9) are threadedly connected at equal intervals on the outer walls of the first spray rod (6) and the second spray rod (8).

6. The high-efficiency spraying device for rice cultivation according to claim 1, characterized in that: The upper surfaces of the substrate (1) and the extension plate (4) are both fixedly connected with bearing seats (5), and the second spray rod (8) is rotatably connected inside the bearing seats (5) on the upper surface of the extension plate (4).