Herbicide spraying device for agricultural production
By designing a rotating nozzle and an airflow diffusion spraying assembly, the problem of uneven spraying in existing devices has been solved, achieving uniform spraying of herbicides and efficient weed control, while reducing usage costs and damage to crops.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HENAN XINXIANG ACADEMY OF AGRI SCI
- Filing Date
- 2025-05-20
- Publication Date
- 2026-04-14
AI Technical Summary
Existing herbicide spraying devices have uneven distribution within the spraying area, which may result in excessive or insufficient herbicide application, affecting weed control and the healthy growth of crops.
It adopts a spray assembly design, including air supply duct, fan, spray assembly and pressurization system, to achieve uniform spraying of herbicides through rotating nozzles and airflow diffusion, and is equipped with a filtration system to prevent clogging.
It achieves uniform distribution of herbicides within the spraying area, improves weed control, reduces potential damage to crops, and lowers usage costs and labor intensity.
Smart Images
Figure CN224112001U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of weeding equipment technology, and in particular to a herbicide spraying device for agricultural production. Background Technology
[0002] In the field of agricultural production, the growth of weeds has always been one of the important factors affecting the yield and quality of crops. Weeds not only compete with crops for nutrients, water and sunlight, but they can also become breeding grounds for pests and diseases, threatening the healthy growth of crops. Therefore, weeding operations occupy a vital position in agricultural production.
[0003] Currently, herbicide spraying devices are one of the most widely used weeding tools in agricultural production. Existing herbicide spraying devices usually consist of a spray bottle, a spray hose, and a simple nozzle. The spray bottle is used to store the herbicide and is generally equipped with a pressurization system that can pressurize the herbicide to provide the pressure basis for the herbicide to be sprayed out of the spraying device. The spray hose connects the spray bottle and the nozzle, guiding the pressurized herbicide from the spray bottle to the nozzle, and finally spraying the herbicide onto the target area through the nozzle.
[0004] However, most existing spraying devices use a straight spraying method, which often results in uneven distribution of herbicides within the spraying area. In some areas, excessive herbicide application may occur, which not only wastes herbicides and increases agricultural production costs, but also may cause phytotoxicity to crops, affecting their normal growth and development. In other areas, insufficient herbicide application may occur, resulting in weeds not being effectively removed, thus affecting the weeding effect and allowing weeds to continue to grow and compete with crops for resources. Utility Model Content
[0005] To address the shortcomings of existing technologies, this utility model provides an agricultural herbicide spraying device that features uniform spraying and wide coverage, solving the problem of uneven herbicide distribution within the spraying area caused by the spraying methods of existing agricultural herbicide spraying devices.
[0006] This utility model provides the following technical solution: an agricultural herbicide spraying device, comprising a spray can, a spray pipe fixedly connected to the surface of the spray can, a spraying assembly disposed at the end of the spray pipe away from the spray can, the spraying assembly including an air supply pipe, a connecting pipe disposed inside the air supply pipe, a connecting hole formed on the bottom surface of the air supply pipe, a first fixing bracket fixedly connected to the inner wall surface of the end of the air supply pipe near the spray can, a drive motor fixedly connected to the surface of the first fixing bracket away from the spray can, a fan fixedly connected to the output shaft of the drive motor via a coupling, a spraying assembly disposed at the end of the connecting pipe away from the spray can, a battery box fixedly connected to the top surface of the air supply pipe, and a handle fixedly connected to the top surface of the battery box. The spray bottle stores the herbicide and has an internal pressurization system to pressurize it, providing the pressure basis for the herbicide to be sprayed from the spraying device. One end of the spray pipe is fixedly connected to the spray bottle, and the other end is fixedly connected to the connecting pipe through the connection hole at the bottom of the air supply pipe. This serves to transport the pressurized herbicide from the spray bottle to the spraying assembly. The spraying assembly is the core part of the entire device that enables the herbicide spraying function. Through the coordinated work of various internal components, it completes the filtering, rotating spraying, and diffusion of the herbicide with the help of airflow, achieving large-area and uniform herbicide spraying. The connection hole is opened on the bottom surface of the air supply pipe, allowing the spray pipe to be fixedly connected to the connecting pipe set inside the air supply pipe through the hole, realizing the transport of the herbicide from the spray pipe to the connecting pipe.
[0007] Preferably, one end of the spray pipe is fixedly connected to a connecting pipe located inside the air supply pipe through a connecting hole. The spray assembly is located at the end of the air supply pipe away from the spray bottle. Both ends of the air supply pipe are open, providing installation space for the internal components and serving as a channel for airflow and herbicide spraying. This allows the airflow generated by the fan to pass smoothly and act on the rotating sprayed herbicide. The connecting pipe is located inside the air supply pipe, with one end connected to the spray pipe and the other end connected to the spray assembly, used to further guide the herbicide delivered by the spray pipe to the spray assembly.
[0008] Preferably, both ends of the air supply pipe are open, and the fan is installed inside the air supply pipe. The fan is located inside the air supply pipe and close to the end of the spray bottle. Driven by the drive motor, the fan rotates to generate airflow, creating a negative pressure area at the end of the air supply pipe close to the spray bottle and a positive pressure area at the end away from the spray bottle. The airflow is drawn in from the negative pressure end, accelerated by the fan, and blown out at high speed from the positive pressure end, blowing the rotating herbicide to a farther and wider area.
[0009] Preferably, the battery box contains a battery, the drive motor is electrically connected to the battery via wires, the drive motor is electrically connected to the battery in the battery box via wires, and its output shaft is fixedly connected to the fan via a coupling to drive the fan to rotate and generate airflow.
[0010] Preferably, the spray assembly includes a second fixing frame fixedly connected between the inner wall surfaces of the air supply pipe, a fixing pipe fixedly connected to the inner wall surface of the second fixing frame, a filter plate fixedly connected to the inner wall surface of the fixing pipe near the connecting pipe, a third fixing frame fixedly connected to the inner wall surface of the fixing pipe away from the connecting pipe, a rotating shaft rotatably connected inside the third fixing frame, a brush plate uniformly fixedly connected to the end surface of the rotating shaft passing through the filter plate, a conical head fixedly connected to the end surface of the rotating shaft away from the filter plate, and guide grooves uniformly formed on the end surface of the conical head near the fixing pipe. The spray assembly performs operations such as filtering and rotating spraying of the herbicide to ensure that the herbicide can be sprayed evenly and effectively onto the target area.
[0011] Preferably, the fixed tube is fixedly connected to the connecting tube, the brush plates all abut against one end surface of the filter plate, the conical head is rotatably connected to one end surface of the fixed tube, and the fixed tube is fixedly connected between the inner wall surfaces of the air supply pipe and the connecting tube via a second fixing bracket. It serves as the channel for the herbicide to enter the spray assembly from the connecting tube. The internal components include a filter plate and a third fixing bracket, providing space for the filtration and rotary spraying of the herbicide.
[0012] Compared with the prior art, the present invention has the following beneficial effects:
[0013] 1. By designing the spraying components, the herbicide can be sprayed in a rotating manner. The spray trajectory is divergent due to the rotation of the conical head and the guide channel. The airflow generated by the fan rotating in the air supply pipe blows the herbicide sprayed from the guide channel to a farther and wider area. Compared with the existing straight spraying, the rotating spraying combined with airflow makes the herbicide more evenly distributed in the spraying area, avoiding the situation of excessive or insufficient herbicide in some areas that may occur with straight spraying. This ensures that each target area receives an appropriate amount of herbicide, thereby improving the weeding effect and avoiding the problem of weed residue or crop damage caused by uneven distribution of herbicide.
[0014] 2. With the brush plate in place, when the conical head rotates under the pressure of the herbicide, the rotating shaft drives the brush plate to rotate, cleaning the surface of the filter plate. This promptly removes blockages caused by impurities in the herbicide, preventing the filter plate from clogging. This ensures that the herbicide can pass smoothly through the filter plate and reach the guide groove of the conical head, thus ensuring the normal operation of the spraying device. It also reduces cleaning and maintenance work caused by clogging, lowering operating costs and labor intensity. Attached Figure Description
[0015] Figure 1 This is a front view of the structure of this utility model;
[0016] Figure 2 This is a schematic diagram of the spraying component in the structure of this utility model;
[0017] Figure 3 This is a schematic diagram of the spray assembly in the structure of this utility model;
[0018] Figure 4 for Figure 3 Enlarged view of point A in the middle.
[0019] In the diagram: 1. Sprayer bottle; 2. Spray pipe; 3. Spray assembly; 31. Air supply pipe; 32. Connecting pipe; 33. Connecting hole; 34. First mounting bracket; 35. Drive motor; 36. Fan; 37. Spray assembly; 371. Second mounting bracket; 372. Mounting pipe; 373. Filter plate; 374. Third mounting bracket; 375. Rotating shaft; 376. Brush plate; 377. Conical head; 378. Guide channel; 38. Battery box; 39. Handle. Detailed Implementation
[0020] 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.
[0021] Please see Figure 1 - Figure 4This utility model provides an embodiment of a herbicide spraying device for agricultural production, comprising a spray bottle 1, a spray pipe 2 fixedly connected to the surface of the spray bottle 1, a spraying assembly 3 disposed at the end of the spray pipe 2 away from the spray bottle 1, the spraying assembly 3 including an air supply pipe 31, a connecting pipe 32 disposed inside the air supply pipe 31, a connecting hole 33 opened on the bottom surface of the air supply pipe 31, a first fixing bracket 34 fixedly connected to the inner wall surface of the end of the air supply pipe 31 near the spray bottle 1, a drive motor 35 fixedly connected to the surface of the first fixing bracket 34 away from the spray bottle 1, a fan 36 fixedly connected to the output shaft of the drive motor 35 via a coupling, a spraying assembly 37 disposed at the end of the connecting pipe 32 away from the spray bottle 1, a battery box 38 fixedly connected to the top surface of the air supply pipe 31, a handle 39 fixedly connected to the top surface of the battery box 38, and one end of the spray pipe 2 fixedly connected to the connecting pipe 32 disposed inside the air supply pipe 31 via the connecting hole 33. The spray assembly 37 is located at the end of the air supply pipe 31 away from the spray bottle 1. Both ends of the air supply pipe 31 are open. The fan 36 is located inside the air supply pipe 31. The battery box 38 contains a battery. The drive motor 35 is electrically connected to the battery via wires. By installing the fan 36 in the spray assembly 3, when the drive motor 35 drives the fan 36 to rotate, a strong airflow is generated. The airflow is blown out at high speed from the end of the air supply pipe 31 away from the spray bottle 1, blowing the rotating herbicide to a farther and wider area, greatly increasing the spraying range of the herbicide. At the same time, since the herbicide is rotated and sprayed from the guide groove 378 of the conical head 377, combined with the airflow generated by the fan 36, the herbicide can be evenly distributed in the spraying area, avoiding local over- or under-spraying, improving the weeding effect and efficiency, reducing potential damage to crops, and also helping to more effectively control weed growth and ensure the healthy growth of crops.
[0022] Please see Figure 1 - Figure 4The spray assembly 37 includes a second fixing frame 371 fixedly connected between the inner wall surfaces of the air supply duct 31. A fixing pipe 372 is fixedly connected to the inner wall surface of the second fixing frame 371. A filter plate 373 is fixedly connected to the inner wall surface of the fixing pipe 372 near the connecting pipe 32. A third fixing frame 374 is fixedly connected to the inner wall surface of the fixing pipe 372 away from the connecting pipe 32. A rotating shaft 375 is rotatably connected inside the third fixing frame 374. A brush plate 376 is uniformly fixedly connected to the end surface of the rotating shaft 375 that passes through the filter plate 373. A conical head 377 is fixedly connected to the end surface of the rotating shaft 375 away from the filter plate 373. Guide grooves 378 are uniformly formed on the end surface of the conical head 377 near the fixing pipe 372. 372 is fixedly connected to the connecting pipe 32. Brush plates 376 all abut against one end surface of the filter plate 373. A conical head 377 is rotatably connected to one end surface of the fixed pipe 372. The herbicide is contained inside the spray bottle 1. The filter plate 373 is fixedly connected to the inner wall surface of the fixed pipe 372 near the connecting pipe 32, filtering the herbicide entering the fixed pipe 372 to remove impurities and prevent them from affecting the normal operation of subsequent components. A third fixing bracket 374 is fixedly connected to the inner wall surface of the fixed pipe 372 away from the connecting pipe 32, and internally rotatably connected to a rotating shaft 375, providing rotational support for the rotating shaft 375 and ensuring stable rotation of the conical head 377. The rotating shaft 375 passes through the filter plate 373, and one end surface is uniformly fixedly connected with… A brush plate 376 has a conical head 377 fixedly connected to its other end surface. When the conical head 377 rotates, it drives the brush plate 376 to rotate, thus cleaning the surface of the filter plate 373. The brush plates 376 are evenly fixedly connected to one end surface of the rotating shaft 375 that passes through the filter plate 373, and all abut against one end surface of the filter plate 373. Driven by the rotating shaft 375, they rotate to clean the surface of the filter plate 373, preventing clogging. The conical head 377 is fixedly connected to the end surface of the rotating shaft 375 away from the filter plate 373, and rotatably connected to one end surface of the fixed pipe 372. The end surface near the fixed pipe 372 has evenly distributed guide grooves 378. Due to the special shape of the guide grooves 378, the pressurized herbicide flows through the guide grooves 378. The herbicide is squeezed by 78, causing the conical head 377 to rotate, thus achieving the rotational spraying of the herbicide. The guide grooves 378 are evenly distributed on the surface of the conical head 377 near the fixed tube 372. Their special shape allows the pressurized herbicide to squeeze the conical head 377, pushing it to rotate and simultaneously guiding the herbicide to be sprayed out from the other end of the guide grooves 378. The spray bottle 1 has an internal pressurization system that pressurizes the herbicide inside. The herbicide is transported from the spray pipe 2 and connecting pipe 32 to the fixed tube 372, then filtered by the filter plate 373 before reaching the guide grooves 378 on the surface of the conical head 377. Due to the special shape of the guide grooves 378, the pressurized herbicide squeezes the guide grooves 378.The conical head 377 rotates, and the herbicide is then sprayed out from the other end of the guide channel 378. The spray trajectory diverges due to the rotation of the conical head 377 and the guide channel 378, and airflow is generated within the air supply pipe 31 by the rotating fan 36. This airflow propels the herbicide sprayed from the guide channel 378 to a wider and farther area. Simultaneously, the rotating herbicide has a larger diffusion area and stronger diffusion capacity in the air, allowing it to mix better with the air and spread further with the airflow. Furthermore, the more uniform and finer droplet distribution formed by the rotating spray helps the herbicide adhere better to the surface of weed leaves, increasing the contact area and contact time between the herbicide and the weeds, thus enhancing the weeding effect.
[0023] Working principle: During operation, the herbicide is loaded into the spray bottle 1. The built-in pressurization system in the spray bottle 1 is activated to pressurize the herbicide. The pressurized herbicide enters the spray pipe 2. One end of the spray pipe 2 is fixedly connected to the spray bottle 1, and the other end is fixedly connected to the connecting pipe 32 located inside the air supply pipe 31 through the connecting hole 33 on the bottom surface of the air supply pipe 31. The herbicide then enters the connecting pipe 32. At the same time, the battery in the battery box 38 powers the drive motor 35, which starts. Its output shaft drives the fan 36 to rotate through the coupling. The fan 36 is located inside the air supply pipe 31 and close to one end of the spray bottle 1. The airflow generated by the fan creates a negative pressure area at the opening of the air supply pipe 31 near the spray bottle 1, and a positive pressure area at the opening away from the spray bottle 1. Airflow is drawn in from the negative pressure end, accelerated by the fan 36, and then blown out at high speed from the positive pressure end. Simultaneously, airflow flows from the end of the air supply pipe 31 near the spray bottle 1 to the end away from the spray bottle 1. The end of the connecting pipe 32 away from the spray bottle 1 is connected to the spray assembly 37. In the spray assembly 37, the fixed pipe 372 is fixedly connected to the inner wall surface of the air supply pipe 31 via a second fixing bracket 371, and the fixed pipe 372 is also fixedly connected to the connecting pipe 32. The herbicide enters the fixed pipe 372 from the connecting pipe 32. The herbicide is filtered through a filter plate 373 fixedly connected to the inner wall surface of the fixed pipe 372 near the connecting pipe 32. The filtered herbicide reaches the interior of the evenly spaced guide grooves 378 on the surface of the conical head 377. Due to the special shape of the guide grooves 378, the pressurized herbicide squeezes the guide grooves 378, causing the conical head 377 to rotate. The conical head 377 is rotatably connected to the third fixed frame 374 via a rotating shaft 375. The third fixed frame 374 is fixedly connected to the inner wall surface of the fixed pipe 372 away from the connecting pipe 32. A brush plate 376 is evenly fixedly connected to the end surface of the filter plate 373 through the rotating shaft 375. All 376 abut against one end surface of the filter plate 373. When the conical head 377 rotates, the rotating shaft 375 drives the brush plate 376 to rotate, cleaning the surface of the filter plate 373 and preventing clogging. The herbicide is sprayed out from the other end of the guide channel 378. At the same time, the airflow generated by the fan 36 blows out from the end of the air supply pipe 31 away from the spray bottle 1, blowing the rotating sprayed herbicide to a farther and wider area, thereby realizing large-area herbicide spraying operation. The battery box 38 fixedly connected to the top surface of the air supply pipe 31 provides storage space for the battery. The handle 39 fixedly connected to the top surface of the battery box 38 makes it convenient for the user to carry and operate the spraying device.
Claims
1. An agricultural herbicide spraying device, comprising a spray bottle (1), characterized in that: The surface of the spray bottle (1) is fixedly connected to a spray pipe (2), and a spraying component (3) is provided at the end of the spray pipe (2) away from the spray bottle (1). The spraying assembly (3) includes an air supply pipe (31), a connecting pipe (32) is provided inside the air supply pipe (31), a connecting hole (33) is provided on the bottom surface of the air supply pipe (31), a first fixing bracket (34) is fixedly connected to the inner wall surface of the end of the air supply pipe (31) near the spray bottle (1), a drive motor (35) is fixedly connected to the end surface of the first fixing bracket (34) away from the spray bottle (1), a fan (36) is fixedly connected to the output shaft of the drive motor (35) through a coupling, a spraying assembly (37) is provided at the end of the connecting pipe (32) away from the spray bottle (1), a battery box (38) is fixedly connected to the top surface of the air supply pipe (31), and a handle (39) is fixedly connected to the top surface of the battery box (38).
2. The herbicide spraying device for agricultural production according to claim 1, characterized in that: The spray assembly (37) includes a second fixing frame (371) fixedly connected between the inner wall surfaces of the air supply pipe (31). A fixing pipe (372) is fixedly connected to the inner wall surface of the second fixing frame (371). A filter plate (373) is fixedly connected to the inner wall surface of the fixing pipe (372) near the connecting pipe (32). A third fixing frame (374) is fixedly connected to the inner wall surface of the fixing pipe (372) away from the connecting pipe (32). A rotating shaft (375) is rotatably connected inside the third fixing frame (374). A brush plate (376) is uniformly fixedly connected to the end surface of the rotating shaft (375) that passes through the filter plate (373). A conical head (377) is fixedly connected to the end surface of the rotating shaft (375) away from the filter plate (373). A guide groove (378) is uniformly opened on the end surface of the conical head (377) near the fixing pipe (372).
3. The herbicide spraying device for agricultural production according to claim 1, characterized in that: One end of the spray pipe (2) is fixedly connected to the connecting pipe (32) inside the air supply pipe (31) through the connecting hole (33), and the spray assembly (37) is located at the end of the air supply pipe (31) away from the spray bottle (1).
4. The herbicide spraying device for agricultural production according to claim 1, characterized in that: Both ends of the air supply pipe (31) are open, and the fan (36) is located inside the air supply pipe (31).
5. The herbicide spraying device for agricultural production according to claim 1, characterized in that: The battery box (38) contains a battery, and the drive motor (35) is electrically connected to the battery via wires.
6. The herbicide spraying device for agricultural production according to claim 2, characterized in that: The fixed tube (372) is fixedly connected to the connecting tube (32), the brush plate (376) is abutted against one end surface of the filter plate (373), and the conical head (377) is rotatably connected to one end surface of the fixed tube (372).