A herbicide directional spraying device

By using a linkage design between the rotating shaft and the guide plate, and the use of a rubber sleeve, the problem of pesticide deviation in windy conditions has been solved in existing devices. This enables precise directional spraying and sealing of the herbicide, improving weeding efficiency and safety.

CN224368877UActive Publication Date: 2026-06-19JIANGXI LVCHUAN BIOLOGICAL TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGXI LVCHUAN BIOLOGICAL TECH CO LTD
Filing Date
2025-07-02
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

Existing herbicide spraying devices have difficulty accurately controlling the spray range and direction, especially in windy conditions where the spray can easily deviate from the target area, resulting in low weed control efficiency and increased environmental risks.

Method used

The design incorporates a rotating shaft and guide plate linkage, combined with a rubber sleeve and an adjustable guide plate, to achieve flexible guidance and sealing of the liquid medicine. The rubber sleeve achieves a zero-gap seal when closed and forms a flexible barrier when opened, reducing drug diffusion and airflow disturbance.

Benefits of technology

It enables precise and targeted spraying of herbicides, reducing damage to non-target plants, improving weeding efficiency, and reducing the risk of herbicide diffusion and mechanical damage.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a herbicide directional spraying device, comprising: a fixed plate fixedly connected to the side surface of a delivery pipe; a rotating shaft rotatably connected to the fixed plate; a guide plate fixedly connected to the side surface of the rotating shaft; a rubber sleeve provided inside the guide plate; a nozzle provided above the rubber sleeve; two fixed blocks 1 provided on the outer surface of the guide plate; a fixed post provided between the fixed blocks 1; the fixed post being fixedly connected to the outer surface of the rubber sleeve; bolts 2 provided on the fixed blocks 1; bolts 2 passing through the fixed post; and sliders 2 slidably connected to the delivery pipe; a connecting rod 2 rotatably connected to the side surface of the slider 2; and connecting rod 2 rotatably connected to the outer surface of the guide plate. Through this structure, the guide plate can flexibly adjust its angle, precisely control the spraying direction of the herbicide, effectively prevent the herbicide from spreading outside the target area, reduce damage to non-target plants, and improve weeding efficiency.
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Description

Technical Field

[0001] This utility model relates to the field of directional spraying technology of herbicides, and in particular to a directional spraying device for herbicides. Background Technology

[0002] Chemical herbicides are widely used to control weed growth in agricultural production and garden maintenance. However, their spraying process often suffers from problems such as herbicide diffusion and drift, which can easily damage non-target plants and even pollute the surrounding environment. Traditional spraying devices typically use fixed nozzles or simple mechanical structures for directional spraying. However, due to the lack of flexible guiding and sealing designs, it is difficult to accurately control the spray range and direction of the herbicide, especially in windy conditions. The herbicide is easily disturbed by airflow and deviates from the target area, resulting in reduced weeding efficiency and increased environmental risks.

[0003] Currently, some improved spraying devices attempt to reduce pesticide drift by adding baffles or flow guiding structures. However, these structures are often inconvenient to adjust and have poor sealing, failing to completely block pesticide leakage when closed or effectively prevent airflow interference when open. Furthermore, the guide components of existing devices are mostly made of rigid materials, lacking flexibility and adaptability, making it difficult to adapt to different spraying angles and terrain requirements, thus affecting actual performance. Utility Model Content

[0004] The purpose of this utility model is to solve at least one of the technical problems existing in the prior art, and to provide a herbicide directional spraying device that solves the problem that the herbicide cannot be flexibly guided and sealed during spraying in the prior art, and can accurately control the spraying range and direction of the liquid, and cannot reduce the problem of the herbicide deviating from the target due to airflow disturbance.

[0005] This utility model also provides a herbicide directional spraying device, comprising: a delivery pipe, a fixed plate fixedly connected to the side surface of the delivery pipe, a rotating shaft rotatably connected to the fixed plate, a guide plate fixedly connected to the side surface of the rotating shaft, a rubber sleeve provided on the inner side of the guide plate, a nozzle provided above the rubber sleeve, the nozzle being detachably connected to the top of the delivery pipe, two fixing blocks I provided on the outer surface of the guide plate, a fixing post provided between the fixing blocks I, the fixing post being fixedly connected to the outer surface of the rubber sleeve, a bolt II provided on the fixing block I, the bolt II passing through the fixing post and threadedly connected to the other fixing block I, a slider II slidably connected to the delivery pipe, a connecting rod II rotatably connected to the side surface of the slider II, the connecting rod II being rotatably connected to the outer surface of the guide plate. Through the above structure, the guide plate can flexibly adjust its angle, precisely control the spraying direction of the herbicide, effectively prevent the herbicide from spreading outside the target area, reduce damage to non-target plants, improve weeding efficiency, and when closed, the silicone sleeve fits tightly to achieve a zero-gap seal; when opened, it forms a flexible barrier to reduce airflow disturbance.

[0006] According to the herbicide directional spraying device of this utility model, a fixing ring is threadedly connected to the delivery pipe. The fixing ring is located above the rubber sleeve and below the nozzle. The above structure facilitates the fixing of the rubber sleeve.

[0007] According to the herbicide directional spraying device of this utility model, a set screw is threadedly connected to the second slider. The set screw passes through the second slider and is in contact with the outer surface of the delivery pipe. The above structure facilitates the positioning of the second slider.

[0008] According to the herbicide directional spraying device of this utility model, a slider is slidably connected to the delivery pipe, a connecting rod is rotatably connected to one side surface of the slider, and a fixing block is fixedly connected to the end of the connecting rod away from the slider. With the above structure, the movement of the slider can drive the fixing block to move.

[0009] According to the herbicide directional spraying device of this utility model, two fixing blocks are fixedly connected to the upper surface of the fixing block three, and a connecting block is provided between the fixing blocks two. The connecting block is fixedly connected to the outer surface of the rubber sleeve. Through the above structure, it is convenient to fix the connecting block and determine the position of the connecting block and the fixing blocks two.

[0010] According to the herbicide directional spraying device of this utility model, a bolt is threadedly connected to the fixing block 2. The bolt passes through the connecting block and extends to the other side of the connecting block. Through the above structure, it is convenient to fix the position of the connecting block, thereby fixing the rubber sleeve.

[0011] According to the herbicide directional spraying device of this utility model, a second set screw is threadedly connected to one side surface of the slider. The second set screw passes through the slider and fits against the outer surface of the delivery pipe. The above structure facilitates the positioning of the slider.

[0012] According to the herbicide directional spraying device of this utility model, a connector is fixedly connected to the end of the conveying pipe away from the rubber sleeve. A limiting ring is provided above the connector and the limiting ring is fixedly connected to the outer surface of the conveying pipe. Through the above structure, it is convenient to limit the position of slider one and slider two to prevent them from falling off, and at the same time, it is convenient to connect the conveying pipe and the material cylinder.

[0013] Beneficial effects:

[0014] 1. The herbicide directional spraying device of this technical solution, through the rotational connection between the rotating shaft and the fixed plate, and the linkage design of the second slider and the second connecting rod, allows the guide plate to flexibly adjust the angle, accurately control the spraying direction of the herbicide, effectively prevent the herbicide from spreading outside the target area, reduce damage to non-target plants, and improve weeding efficiency.

[0015] 2. The herbicide directional spraying device of this technical solution uses a double-layer seal. When closed, the silicone sleeve fits tightly to achieve a zero-gap seal, preventing dust from entering and preventing the herbicide from evaporating. When opened, the silicone sleeve expands with the sleeve plate to form a flexible barrier that conforms better to the contours of weeds than a rigid sleeve plate, reducing airflow disturbance and forming a physical barrier to prevent the herbicide from drifting laterally. At the same time, the elasticity of the silicone can buffer accidental contact and reduce the risk of the operator being injured by the machinery. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0017] Figure 1 This is an overall structural diagram of a herbicide directional spraying device according to the present invention;

[0018] Figure 2 This is a bottom view of the structure of a herbicide directional spraying device according to the present invention;

[0019] Figure 3 This is a cross-sectional view of a herbicide directional spraying device according to the present invention;

[0020] Figure 4 This utility model relates to a directional spraying device for herbicides. Figure 2 Enlarged structural diagram at point B in the middle.

[0021] Legend:

[0022] 1. Delivery pipe; 2. Connector; 3. Limiting ring; 4. Slider 1; 5. Slider 2; 6. Connecting rod 1; 7. Set screw 1; 8. Set screw 2; 9. Connecting rod 2; 10. Rubber sleeve; 11. Fixing ring; 12. Nozzle; 13. Guide plate; 14. Fixing block 1; 15. Fixing column; 16. Fixing plate; 17. Rotating shaft; 18. Fixing block 2; 19. Fixing block 3; 20. Connecting block; 21. Bolt 1; 22. Bolt 2. Detailed Implementation

[0023] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0024] Reference Figure 1-4 This utility model discloses a herbicide directional spraying device, comprising: a delivery pipe 1; a fixing plate 16 fixedly connected to the side surface of the delivery pipe 1; a rotating shaft 17 rotatably connected to the fixing plate 16; a guide plate 13 fixedly connected to the side surface of the rotating shaft 17; a rubber sleeve 10 disposed inside the guide plate 13; a nozzle 12 disposed above the rubber sleeve 10; the nozzle 12 being detachably connected to the top end of the delivery pipe 1; two fixing blocks 14 disposed on the outer surface of the guide plate 13; a fixing post 15 disposed between the fixing blocks 14; the fixing post 15 being fixedly connected to the outer surface of the rubber sleeve 10; a bolt 22 disposed on the fixing block 14; the bolt 22 passing through the fixing post 15 and threadedly connected to the other fixing block 14; a slider 2 5 slidably connected to the delivery pipe 1; a connecting rod 2 9 rotatably connected to the side surface of the slider 2 5; the connecting rod 2 9 being rotatably connected to the outer surface of the guide plate 13; and a set screw 7 threadedly connected to the slider 2 5, the set screw 7 passing through the slider 2 5. The conveying pipe 1 is threaded with a fixing ring 11, which is located above the rubber sleeve 10 and below the nozzle 12. A connector 2 is fixedly connected to the end of the conveying pipe 1 away from the rubber sleeve 10. A limit ring 3 is set above the connector 2 and is fixedly connected to the outer surface of the conveying pipe 1. A slider 4 is slidably connected to the conveying pipe 1. A connecting rod 6 is rotatably connected to the side surface of the slider 4. A fixing block 19 is fixedly connected to the end of the connecting rod 6 away from the slider 4. Two fixing blocks 18 are fixedly connected to the upper surface of the fixing block 19. A connecting block 20 is set between the fixing blocks 18 and is fixedly connected to the outer surface of the rubber sleeve 10. A bolt 21 is threadedly connected to the fixing block 18. The bolt 21 passes through the connecting block 20 and extends to the other side of the connecting block 20. A set screw 8 is threadedly connected to the side surface of the slider 4. The set screw 8 passes through the slider 4 and is attached to the outer surface of the conveying pipe 1.

[0025] Specifically, the nozzle 12 is installed at the top of the delivery pipe 1, ensuring a tight connection to prevent herbicide leakage. Before installing the nozzle 12, the rubber sleeve 10 and the retaining ring 11 are installed. The retaining ring 11 is tightened on the delivery pipe 1, positioning it above the rubber sleeve 10 and below the nozzle 12, further securing the positions of the nozzle 12 and the rubber sleeve 10 and enhancing the overall structural stability. The connector 2 is then connected to the external herbicide delivery pipeline. The limiting ring 3 provides positioning and limiting during the connection process, ensuring a secure connection of the connector 2. Finally, the connecting block 20 is fixed between the two retaining blocks 18 using bolt 21, ensuring that the rubber sleeve 10 and the slider 4 are properly connected. After initial connection, use set screw 28 to pass through slider 4 and tighten it to ensure a tight fit with the outer surface of the delivery pipe 1, fixing slider 4 in position on the delivery pipe 1. Similarly, use bolt 22 to fix the fixing post 15 between the two fixing blocks 14, connect the rubber sleeve 10 to slider 5, and use set screw 7 to fix slider 5 in position on the delivery pipe 1. Rotate the rotating shaft 17 to drive the guide plate 13 to rotate around the fixing plate 16. Adjust the tilt angle of the guide plate 13 as needed to determine the spraying direction of the herbicide. The rubber sleeve 10 on the inner side of the guide plate 13 can act as a buffer and protect during adjustment to avoid damage to crops. Start the external herbicide delivery equipment. The herbicide is sprayed through the delivery pipe 1 and nozzle 12. Guided by the guide plate 13, the herbicide is sprayed directionally along the set direction to reduce the impact on non-target areas. During spraying operations, if it is necessary to adjust the spraying direction or height, loosen top screw 7 and top screw 8, slide slider 4 and slider 5 up and down, and move components such as rubber sleeve 10 and guide plate 13. After adjustment, tighten top screw 7 and top screw 8 again. If it is necessary to fine-tune the angle of guide plate 13, rotate the rotating shaft 17 again for adjustment. When it is necessary to retract the guide plate, if it is necessary to expose the part of the rubber sleeve that is not in contact with guide plate 13, simply keep slider 4 stationary when retracting guide plate 13, and fix it by the mutual clamping of guide plate 13.

[0026] Working principle: During use, the nozzle 12 is installed at the top of the delivery pipe 1, and works in conjunction with the pre-installed rubber sleeve 10 and fixing ring 11. The fixing ring 11 is tightened on the delivery pipe 1, positioned above the rubber sleeve 10 and below the nozzle 12. The three components work together to ensure a tight connection of the nozzle and prevent herbicide leakage. The connector 2 is connected to the external herbicide delivery pipeline, and the limiting ring 3 serves to position and limit the connection, ensuring a stable connection. In terms of structural fixation, the connecting block 20 is fixed between the two fixing blocks 18 by bolt 21, initially connecting the rubber sleeve 10 and the slider 4. After tightening the set screw 8, the slider 4 fits tightly against the delivery pipe 1, fixing its position. Similarly, bolt 22 fixes the fixing post 15 between the two fixing blocks 14, connecting the rubber sleeve 10 and the slider 5. The set screw 7 fixes the slider 5. The spraying direction and height are flexibly adjustable. Rotating the rotating shaft 17 causes the guide plate 13 to rotate around the fixed plate 16, adjusting the tilt angle of the guide plate 13 and thus determining the spraying direction of the herbicide. The rubber sleeve 10 acts as a buffer and protector during the adjustment process. To adjust the spraying height, loosen the first screw 7 and the second screw 8, and slide the first slider 4 and the second slider 5 up and down, moving the rubber sleeve 10, guide plate 13, and other components. After adjustment, tighten the first screw to fix the position. To fine-tune the angle of the guide plate 13, simply rotate the rotating shaft 17 again. During operation, the external herbicide delivery equipment is activated, and the herbicide is sprayed from the nozzle 12 through the delivery pipe 1. Guided by the guide plate 13, it achieves directional spraying, reducing the impact on non-target areas. When the device is retracted, keep the first slider 4 stationary and use the guide plates 13 to clamp and fix it, exposing the parts of the rubber sleeve that do not contact the guide plate 13 for easy storage and subsequent operation.

[0027] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A herbicide directional spraying device, characterized in that, include: A conveying pipe (1) is fixedly connected to a fixing plate (16) on its side surface. A rotating shaft (17) is rotatably connected to the fixing plate (16). A guide plate (13) is fixedly connected to the side surface of the rotating shaft (17). A rubber sleeve (10) is provided on the inner side of the guide plate (13). A nozzle (12) is provided above the rubber sleeve (10). The nozzle (12) is detachably connected to the top of the conveying pipe (1). Two fixing blocks (14) are provided on the outer surface of the guide plate (13). A fixing post (15) is provided between the fixing blocks (14). The fixing post (15) is fixedly connected to the outer surface of the rubber sleeve (10). A bolt (22) is provided on the fixing block (14). The bolt (22) passes through the fixing post (15) and is threadedly connected to another fixing block (14). A slider (5) is slidably connected on the conveying pipe (1). A connecting rod (9) is rotatably connected to the side surface of the slider (5). The connecting rod (9) is rotatably connected to the outer surface of the guide plate (13).

2. The herbicide directional spraying device according to claim 1, characterized in that, A fixing ring (11) is threaded onto the delivery pipe (1). The fixing ring (11) is located above the rubber sleeve (10) and below the nozzle (12).

3. The herbicide directional spraying device of claim 1, wherein, The slider two (5) is threaded with a set screw one (7), which passes through the slider two (5) and is in contact with the outer surface of the conveying pipe (1).

4. The herbicide directional spraying device of claim 1, wherein, A slider (4) is slidably connected to the conveying pipe (1), and a connecting rod (6) is rotatably connected to the side surface of the slider (4). A fixing block (19) is fixedly connected to the end of the connecting rod (6) away from the slider (4).

5. A herbicide directional spraying device according to claim 4, wherein, Two fixing blocks (18) are fixedly connected to the upper surface of the fixing block three (19), and a connecting block (20) is provided between the fixing blocks two (18). The connecting block (20) is fixedly connected to the outer surface of the rubber sleeve (10).

6. A herbicide directional spraying device according to claim 5, wherein, The fixing block 2 (18) is threaded with a bolt 1 (21), which passes through the connecting block (20) and extends to the other side of the connecting block (20).

7. A directed spray device for herbicides as claimed in claim 4, wherein, The slider one (4) has a threaded connection to a set screw two (8) on its side surface. The set screw two (8) passes through the slider one (4) and is attached to the outer surface of the conveying pipe (1).

8. The herbicide directional spraying device of claim 1, wherein, The end of the conveying pipe (1) away from the rubber sleeve (10) is fixedly connected to a connector (2), and a limit ring (3) is provided above the connector (2). The limit ring (3) is fixedly connected to the outer surface of the conveying pipe (1).