Grain plant protection spraying device

Abstract

The utility model relates to agricultural plant protection equipment technical field, concretely is a kind of grain plant protection spraying apparatus, the utility model includes main frame body, spraying mechanism, control mechanism and conveying mechanism, and two fixed rods are fixedly connected on main frame body;Spraying mechanism is provided with two groups, is connected on two fixed rods respectively, and spraying mechanism includes fixed ring that is rotatably connected on fixed rod by bearing, and spraying pipe fixedly connected in one side of fixed ring, and the bottom of spraying pipe is provided with several spray holes;The utility model utilizes arc-shaped guide tube and arc-shaped guide frame as the pipeline of liquid medicine input, when spraying pipe rotates, arc-shaped guide tube is driven to move in arc-shaped guide frame, does not influence the rotation of spraying pipe, so that liquid medicine input is not needed through hose connection spraying pipe, avoid in the ground handling, maintenance process before and after operation, exposed hose is hooked by branch, tool etc., cause damage.

Description

Technical Field

[0001] This utility model relates to the field of agricultural plant protection equipment technology, specifically a grain plant protection spraying device. Background Technology

[0002] Plant protection operations are a crucial link in ensuring food security, and their effectiveness directly affects crop yield and quality. In recent years, plant protection drone technology has been widely promoted and applied due to its high efficiency, labor-saving, and adaptability, in order to address issues such as rural labor shortages, the inefficiency of traditional pesticide application methods, and insufficient safety.

[0003] However, in current grassroots plant protection practices, drone spraying systems generally use flexible hoses to connect the spray tank and the spray boom. For example, a plant protection kit for a plant protection drone proposed in patent application number "CN202420728189.5" can achieve flexible rotation of the spray boom through the cooperation of electric cylinder, spray boom and locking sleeve. However, in order to accommodate the rotation of the spray boom, it is necessary to use a hose to connect the spray pipe and the external spray tank.

[0004] When operating in the field, especially when navigating through complex terrain and crop canopies, hoses are easily snagged or pulled by obstacles such as branches and crops, leading to pipeline damage and pesticide leakage. Furthermore, exposed and swaying hoses increase the air resistance of the aircraft, consume additional drone power, shorten the duration of a single flight, reduce operational efficiency, and increase the operational and time costs of organizing large-scale plant protection services.

[0005] Therefore, there is an urgent need for a more reliable, efficient, and durable drone spraying device to overcome the inherent defects of hose connections, improve the continuous operation capability and reliability of plant protection drone teams, and thus better serve the large-scale and efficient integrated pest management work within the county, ensuring stable and increased grain production. Utility Model Content

[0006] The purpose of this invention is to provide a grain plant protection spraying device to solve the problems mentioned in the background art.

[0007] The objective of this utility model can be achieved through the following technical solutions: A grain plant protection spraying device includes a main frame, a spraying mechanism, a control mechanism, and a conveying mechanism, with two fixed rods fixedly connected to the main frame; The spraying mechanism is provided in two sets, which are respectively connected to two fixed rods. The spraying mechanism includes a fixed ring that is rotatably connected to the fixed rod through a bearing, and a spraying pipe that is fixedly connected to one side of the fixed ring. Several spraying holes are opened at the bottom of the spraying pipe. The conveying mechanism is used to convey liquid medicine to the spray pipe. It includes a fixed arc-shaped guide frame and an arc-shaped guide pipe that rotates synchronously with the spray pipe. One end of the arc-shaped guide pipe extends into the guide cavity of the arc-shaped guide frame and can slide relative to it to form a sliding seal connection.

[0008] Preferably, the control mechanism is connected to the main frame and is used to adjust and lock the pitch angle of the spray pipe; The control mechanism includes an inclined support plate, which is connected to the main frame via a first fixed shaft and to a fixed rod via a second fixed shaft. A limit groove is provided on the main frame, and a sliding block is slidably connected in the limit groove. A sliding plate is fixedly connected to one side of the sliding block, and an adjusting plate is rotatably connected to the sliding plate. The other end of the adjusting plate is rotatably connected to the spray pipe.

[0009] Preferably, the control mechanism further includes a top locking block and a bottom locking block fixed to the support plate. The bottom locking block is provided with a locking bolt, which can pass through the opening on the sliding block and be threadedly connected to the bottom locking block to fix the sliding block in the desired position.

[0010] Preferably, the arc-shaped guide frame is fixed to the bottom of the support plate, and one side of it is provided with a medicine inlet that communicates with the guide cavity.

[0011] Preferably, one end of the arc-shaped conductive tube located inside the conductive cavity is fixedly connected to a connecting tube head, and a sealing gasket is fixed on the connecting tube head to form a seal with the inner wall of the conductive cavity.

[0012] Preferably, a liquid outlet hole is provided at the bottom of the inner wall of the conductive cavity. When the spray pipe is rotated to a horizontal position, the arc-shaped conductive pipe causes the sealing gasket to seal the opening end of the arc-shaped conductive frame under the action of tension.

[0013] The beneficial effects of this utility model are: This invention utilizes an arc-shaped guide pipe and an arc-shaped guide frame as the pipeline for inputting the liquid medicine. When the spray pipe rotates, it drives the arc-shaped guide pipe to move within the arc-shaped guide frame without affecting the rotation of the spray pipe. This eliminates the need for connecting the spray pipe to a flexible hose for liquid medicine input, preventing the exposed hose from being snagged by branches, tools, etc., during ground handling and maintenance before and after operation, thus avoiding damage. It also prevents entanglement between the hose and spray mechanism components, and prevents the hose from shaking and generating greater air resistance, which would affect the drone's endurance. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a utility model Figure 1 Schematic diagram of the structure of the central spray pipe section; Figure 3 This is a utility model Figure 2 Rear view of the central support plate; Figure 4 This is a utility model Figure 2 Cross-sectional view of the arc-shaped conductor frame.

[0015] The attached figures are labeled as follows: 1. Main frame; 101. Fixing rod; 201. Fixing ring; 202. Spray pipe; 301. Support plate; 302. First fixing shaft; 303. Second fixing shaft; 304. Limiting groove; 305. Sliding block; 306. Sliding plate; 307. Adjusting connecting plate; 4. Top locking block; 5. Bottom locking block; 6. Locking bolt; 401. Arc-shaped guide frame; 402. Arc-shaped guide pipe; 403. Guide cavity; 404. Liquid inlet; 405. Connecting pipe head; 406. Sealing gasket; 407. Liquid outlet. Detailed Implementation

[0016] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0017] like Figures 1-4 A grain plant protection spraying device includes a main frame 1, a spraying mechanism, a control mechanism, and a conveying mechanism. The main frame 1 is made of metal and is mounted on a plant protection drone. The plant protection drone drives the main frame 1 to move. Two fixed rods 101 are fixedly connected to the main frame 1. like Figure 1 The spraying mechanism is provided in two sets, which are respectively connected to two fixed rods 101 and located on both sides of the main frame 1. The spraying mechanism includes a fixed ring 201, which is rotatably connected to the middle area of ​​the fixed rod 101 through a bearing. A spraying pipe 202 is fixedly connected to one side of the fixed ring 201. The bottom of the spraying pipe 202 is provided with a linear array of spraying holes, which can spray the fertilizer mixed in water through the spraying holes during the flight of the main frame driven by the UAV.

[0018] like Figure 2The control mechanism is connected to the main frame 1 and includes a support plate 301. The support plate 301 is inclined and has the same inclination as the support part of the main frame 1. The top two sides of the support plate 301 are fixedly connected to the first fixed shaft 302, and the other end of the first fixed shaft 302 is fixedly connected to the main frame 1. The bottom two sides of the support plate 301 are fixedly connected to the second fixed shaft 303, and the other end of the second fixed shaft 303 is fixedly connected to the fixed rod 101, which together provide support for the support plate 301. Figure 1 , Figure 2 and Figure 3 A limiting groove 304 is provided on the main frame 1. A sliding block 305 is slidably connected in the limiting groove 304. A sliding plate 306 is fixedly connected to one side of the sliding block 305. An adjusting connecting plate 307 is rotatably connected to the upper part of the sliding plate 306. The end of the adjusting connecting plate 307 away from the sliding plate 306 is rotatably connected to the spray pipe 202. By utilizing the sliding connection between the sliding block 305 and the limiting groove 304, the sliding plate 306 can move along the surface of the support plate 301. Figure 1 , Figure 2 and Figure 3 Two top locking blocks 4 and two bottom locking blocks 5 are fixedly connected to the side of the support plate 301 away from the sliding plate 306. The two top locking blocks 4 are at the same height and are located on both sides of the limiting slide groove 304. The two bottom locking blocks 5 are at the same height and are located on both sides of the limiting slide groove 304. Locking bolts 6 are provided on the bottom locking blocks 5. Screw holes are provided on both the top locking blocks 4 and the bottom locking blocks 5. The sliding block 305 has an opening, and the opening on the sliding block 305 is aligned with the screw hole on the bottom locking block 5. The locking bolts 6 pass through the opening on the sliding block 305 and are threadedly connected to the screw hole on the bottom locking block 5 to fix the sliding block 305 and restrict the movement of the sliding block 305 and the sliding plate 306. The sliding plate 306 cannot move, and the spray pipe 202 connected to the sliding plate 306 by adjusting the connecting plate 307 also cannot move. like Figure 1 and Figure 4 The conveying mechanism includes an arc-shaped guide frame 401 and an arc-shaped guide pipe 402. The arc-shaped guide frame 401 and the arc-shaped guide pipe 402 have the same curvature and the center of the arc is also located at the same place. The center of the arc is the same as the rotation center of the spray pipe 202. The arc-shaped guide frame 401 is fixed to the bottom of the support plate 301. The arc-shaped guide frame 401 has a guide cavity 403 inside. One end of the arc-shaped guide frame 401 is provided with an opening. A liquid medicine inlet 404 is fixedly connected to one side of the arc-shaped guide frame 401. The liquid medicine inlet 404 and the guide cavity 403 are connected. The main frame 1 is also equipped with a medicine storage container. The medicine storage container is connected to the medicine inlet 404 through a pump and a pipe, which can input the medicine into the interior of the conductive cavity 403 through the medicine inlet 404. The medicine inlet pipe is an iron pipe. The medicine storage container, pump and medicine inlet pipe are all existing technologies, and will not be described in detail here. They are also unrelated to the technical solution of this application. Therefore, the medicine storage container, pump and medicine inlet pipe are not shown in the figure.

[0019] One end of the arc-shaped guide tube 402 is fixed to the spray pipe 202. The other end of the arc-shaped guide tube 402 passes through the opening of the arc-shaped guide frame 401 and extends into the interior of the guide cavity 403. A connecting pipe head 405 is fixedly connected to the end of the arc-shaped guide tube 402 located inside the guide cavity 403. A sealing gasket 406 is fixedly connected to the end of the connecting pipe head 405 located on the outer surface of the arc-shaped guide tube 402. A liquid outlet hole 407 is provided at the bottom of the inner wall of the conductive cavity 403; When the spray pipe 202 is rotated to a horizontal position, the spray pipe 202 exerts a pulling force on the arc-shaped guide pipe 402 and the connecting pipe head 405 towards the outside of the arc-shaped guide frame 401. At this time, the connecting pipe head 405 can press the sealing gasket 406 to one end of the inner wall of the guide cavity 403, and seal the open end of the arc-shaped guide frame 401, so that no liquid leakage will occur at the open end of the arc-shaped guide frame 401 when the liquid is sprayed.

[0020] The working principle of the grain plant protection spraying device provided by this utility model is as follows: Remove the locking bolt 6, and slide the sliding plate 306 on the support plate 301. The sliding plate 306 moves up and down, which will pull or push the spray pipe 202 through the adjusting connecting plate 307, so that the spray pipe 202 rotates around the fixed ring 201 as the center. When spraying is needed, rotate the spray pipe 202 to a horizontal state, and fix the sliding block 305 at the bottom locking block 5 with the locking bolt 6. After spraying is completed, the spray pipe 202 can be rotated upward to reduce space occupation, and then the sliding block 305 can be fixed at the top locking block 4 with the locking bolt 6. When the spray pipe 202 is rotated downwards to a horizontal position, it will pull the arc-shaped guide pipe 402 outwards. The arc-shaped guide pipe 402 drives the connecting pipe head 405 to move, so that the sealing gasket 406 is pressed against the inner wall of the guide cavity 403, sealing the open end of the arc-shaped guide frame 401. During spraying, the liquid enters the guide cavity 403 through the liquid inlet 404. Some of the liquid will be sprayed out from the liquid outlet 407, and the other part of the liquid will enter the spray pipe 202 through the arc-shaped guide pipe 402 and then be sprayed out from the spray hole at the bottom of the spray pipe 202. Together, they spray the liquid to achieve grain plant protection spraying.

[0021] Compared with related technologies, the grain plant protection spraying device provided by this utility model has the following beneficial effects: This invention utilizes an arc-shaped guide pipe 402 and an arc-shaped guide frame 401 as the pipeline for inputting the liquid medicine. When the spray pipe 202 rotates, it drives the arc-shaped guide pipe 402 to move within the arc-shaped guide frame 401 without affecting the rotation of the spray pipe 202. This eliminates the need for connecting the spray pipe 202 with a flexible hose for inputting the liquid medicine, preventing the exposed hose from being hooked by branches, tools, etc., during ground handling and maintenance before and after operation, thus avoiding damage. It also prevents the hose from becoming entangled with the spray mechanism components and prevents the hose from shaking and generating greater air resistance, which would affect the drone's endurance.

[0022] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A grain plant protection spraying device, comprising a main frame (1), a spraying mechanism, a control mechanism, and a conveying mechanism, characterized in that, Two fixed rods (101) are fixedly connected to the main frame (1); The spraying mechanism is provided in two sets, which are respectively connected to two fixed rods (101). The spraying mechanism includes a fixed ring (201) rotatably connected to the fixed rod (101) via a bearing, and a spraying pipe (202) fixedly connected to one side of the fixed ring (201). Several spraying holes are opened at the bottom of the spraying pipe (202). The conveying mechanism is used to convey liquid medicine to the spray pipe (202). It includes a fixed arc-shaped guide frame (401) and an arc-shaped guide pipe (402) that rotates synchronously with the spray pipe (202). One end of the arc-shaped guide pipe (402) extends into the guide cavity (403) of the arc-shaped guide frame (401) and can slide relative to it to form a sliding seal connection.

2. A grain plant protection spraying device according to claim 1, characterized in that, The control mechanism is connected to the main frame (1) and is used to adjust and lock the pitch angle of the spray pipe (202); The control mechanism includes an inclined support plate (301), which is connected to the main frame (1) via a first fixed shaft (302) and to a fixed rod (101) via a second fixed shaft (303). A limit groove (304) is provided on the main frame (1), and a sliding block (305) is slidably connected in the limit groove (304). A sliding plate (306) is fixedly connected to one side of the sliding block (305), and an adjusting connecting plate (307) is rotatably connected to the sliding plate (306). The other end of the adjusting connecting plate (307) is rotatably connected to the spray pipe (202).

3. A grain plant protection spraying device according to claim 2, characterized in that, The control mechanism also includes a top locking block (4) and a bottom locking block (5) fixed on the support plate (301). The bottom locking block (5) is provided with a locking bolt (6). The locking bolt (6) can pass through the opening on the sliding block (305) and be threadedly connected to the bottom locking block (5) to fix the sliding block (305) in the desired position.

4. A grain plant protection spraying device according to claim 1, characterized in that, The arc-shaped guide frame (401) is fixed to the bottom of the support plate (301), and a liquid inlet (404) is provided on one side of it, which is connected to the guide cavity (403).

5. A grain plant protection spraying device according to claim 4, characterized in that, The arc-shaped conduit (402) is located inside the conduit cavity (403) and is fixedly connected to a connecting pipe head (405). A sealing gasket (406) is fixed on the connecting pipe head (405) to form a seal with the inner wall of the conduit cavity (403).

6. A grain plant protection spraying device according to claim 5, characterized in that, The bottom of the inner wall of the conductive cavity (403) is provided with a liquid outlet hole (407). When the spray pipe (202) is rotated to a horizontal state, the arc-shaped conductive pipe (402) causes the sealing gasket (406) to block the opening end of the arc-shaped conductive frame (401) under the action of tension.

Images