Corn stalk base pesticide application anti-lodging injector

By designing an automated corn stalk base sprayer to prevent lodging, and utilizing a servo motor to drive the threaded rod and sleeve structure, the problem of poor fixation in existing technologies has been solved, achieving convenient operation and stable spraying.

CN224538892UActive Publication Date: 2026-07-24孙天奇 +4
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
孙天奇
Filing Date
2025-08-21
Publication Date
2026-07-24

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Abstract

The utility model discloses corn stem base applies medicine and prevents lodging injection device, including hand seat, the top of hand seat is provided with the connecting seat of sliding, the top of hand seat is provided with needle tube body, the inside sliding of needle tube body has the press bar, the press bar sliding joint is in the inside of connecting seat. Through the inner surface of the sliding plug -in of the ridge edge of needle tube body in the socket, the handle body of press bar is sliding plug -in in the inner surface of connecting seat simultaneously, then through the rotation adjusting screw, under the rotation of adjusting screw, drive the movement of limiting plate, and through the guide limiting of guide groove seat, make limiting plate fastening and fit in the outer surface of needle tube body, finally, through the adjustment structure drive connecting seat and move, thereby drive press bar and stretch or push in the inside of needle tube body, through set above structure, replaced the hand -held fixed mode, operator also need not press with hand, improve the fixed effect, thereby facilitated operation.
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Description

Technical Field

[0001] This utility model belongs to the field of corn planting technology, and in particular relates to a corn stalk base sprayer for preventing lodging. Background Technology

[0002] The corn stalk base sprayer is a special spraying tool designed to prevent lodging in corn. It mainly enhances the plant's resistance to lodging by precisely applying pesticides at the base of the stalk.

[0003] Existing injection methods typically involve drawing anti-lodging agents through an injection tube, with the agent applied directly to the growing point at the base of the stem via the injector. Compared to foliar spraying, this allows for more precise control of agent absorption, reduces evaporation and loss, and improves efficacy. However, during injection, the injector needs to hold the injection tube with both hands, observe the liquid flow, and finally press the lever inside the tube to push the liquid into the base of the corn. The manual support method is not very effective at securing the liquid, increasing the difficulty of operation. Therefore, we propose a corn stem-based anti-lodging injector to address the shortcomings of existing technologies. Utility Model Content

[0004] The purpose of this invention is to provide a corn stalk base sprayer for preventing lodging, which improves the fixing effect and facilitates operation, thereby solving the aforementioned technical problems.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A corn stalk base sprayer for preventing lodging includes a hand grip, a connecting seat slidably disposed on the top of the hand grip, a needle body disposed on the top of the hand grip, a pressing rod slidably disposed inside the needle body, the pressing rod being slidably engaged inside the connecting seat, a support cylinder integrally fixedly connected to the top of the hand grip, an adjusting screw rotatably connected to the top of the support cylinder via a bearing seat, a limiting plate being threadedly connected to the outer surface of the adjusting screw, a guide groove seat fixedly connected to the side of the hand grip, the inner surface of the guide groove seat being slidably disposed between the guide groove seat and the limiting plate, the bottom of the limiting plate being tightly fitted to the needle body, an adjusting structure for moving the connecting seat being disposed inside the hand grip, a socket for limiting the needle body being fixedly disposed on the top of the hand grip, and the edge of the end face of the needle body being inserted into the groove of the socket.

[0006] Preferably, the inner surface of the connector is provided with a insertion groove for sliding insertion of the pressing rod handle.

[0007] Preferably, the adjustment structure includes a servo motor fixedly installed inside the hand grip, the output shaft of the servo motor is fixedly connected to a threaded rod, the surface of the threaded rod is threadedly connected to a threaded sleeve, the outer surface of the threaded sleeve is fixedly connected to a movable plate, the top of the movable plate passes through the hand grip and extends to the top of the hand grip and is fixedly connected to the bottom of the connecting seat.

[0008] Preferably, a guide rod slides through the interior of the movable plate, the guide rod is fixedly connected to the hand grip, a spring is sleeved on the outer surface of the guide rod, one side of the spring is fixedly connected to the movable plate, and the other side of the spring is fixedly connected to the inner wall of the hand grip.

[0009] Preferably, a guide block is slidably connected to the inner surface of the guide groove seat, and the guide block is fixedly connected to the limiting plate.

[0010] The beneficial effects of this utility model are: 1. This utility model involves sliding the edge of the needle tube body into the inner surface of the socket, while simultaneously sliding the handle of the pressing rod into the inner surface of the connecting seat. Then, by rotating the adjusting screw, the limiting plate is moved and guided and limited by the guide groove seat, so that the limiting plate is firmly attached to the outer surface of the needle tube body. Finally, the connecting seat is moved by the adjusting structure, thereby causing the pressing rod to stretch or push inside the needle tube body. By setting the above structure, the method of hand support and fixation is replaced, and the operator does not need to press with their hands, improving the fixation effect and making the operation more convenient. 2. This utility model limits the position of the pressing rod by inserting it into the insertion slot, thereby facilitating the adjustment structure to move the pressing rod. 3. This utility model uses a servo motor to drive the threaded rod to rotate, which in turn drives the threaded sleeve to rotate. Under the rotation of the threaded sleeve, the moving plate slides and is limited on the outer surface of the guide rod, thereby driving the connecting seat to move. The spring is used for buffering and limiting the movement by stretching or compressing. 4. This utility model has a guide block slidably connected to the inner surface of the guide groove seat, which can guide the up and down movement of the limiting plate. Attached Figure Description

[0011] in: Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the internal cross-section of the structure of this utility model; Figure 3 This is a schematic diagram of the adjustment structure of this utility model; Figure 4 This is a top view of the structure of this utility model. Detailed Implementation

[0012] In the following description, embodiments of the corn stalk base sprayer for preventing lodging will be described with reference to the accompanying drawings. Example 1

[0013] Figure 1-4 This invention illustrates an embodiment of a corn stalk base sprayer for preventing lodging, comprising a handgrip 1, a connecting seat 2 slidably disposed on the top of the handgrip 1, a needle tube 3 disposed on the top of the handgrip 1, and a pressing rod 4 slidably disposed inside the needle tube 3. The inner surface of the connecting seat 2 has an insertion groove for the handle of the pressing rod 4 to slide into. The pressing rod 4 is inserted into the insertion groove, limiting its position and facilitating the adjustment mechanism to move the pressing rod 4. The pressing rod 4 is slidably engaged inside the connecting seat 2. A support cylinder 5 is integrally fixedly connected to the top of the grip 1. An adjusting screw 6 is rotatably connected to the top of the support cylinder 5 via a bearing seat. A limit plate 7 is threadedly connected to the outer surface of the adjusting screw 6. A guide groove seat 8 is fixedly connected to the side of the grip 1. The inner surface of the guide groove seat 8 slides between itself and the limit plate 7. The bottom of the limit plate 7 is tightly fitted to the needle tube body 3. An adjustment structure for moving the connecting seat 2 is provided inside the grip 1. The adjustment structure includes a servo motor 10 fixedly installed inside the grip 1. The output shaft of 10 is fixedly connected to a threaded rod 11. A threaded sleeve 12 is threadedly connected to the surface of the threaded rod 11. A movable plate 13 is fixedly connected to the outer surface of the threaded sleeve 12. The top of the movable plate 13 passes through the handgrip 1 and extends to the top of the handgrip 1, where it is fixedly connected to the bottom of the connecting seat 2. A guide rod 14 slides through the interior of the movable plate 13. The guide rod 14 is fixedly connected to the handgrip 1. A spring 15 is sleeved on the outer surface of the guide rod 14. One side of the spring 15 is fixedly connected to the movable plate 13. The other side of the spring 15 is fixedly connected to the inner wall of the hand grip 1. The servo motor 10 drives the threaded rod 11 to rotate, thereby driving the threaded sleeve 12 to rotate. Under the rotation of the threaded sleeve 12, the moving plate 13 is slidably limited on the outer surface of the guide rod 14, thereby driving the connecting seat 2 to move. The spring 15 is stretched or compressed to buffer and limit the movement. The top of the hand grip 1 is fixedly provided with a socket 9 for limiting the needle body 3. The edge of the end face of the needle body 3 is inserted into the groove of the socket 9. Example 2

[0014] Figure 1-4This invention illustrates an embodiment of a corn stalk base sprayer for preventing lodging, comprising a handgrip 1, a connecting seat 2 slidably disposed on the top of the handgrip 1, a needle tube 3 disposed on the top of the handgrip 1, a pressing rod 4 slidably disposed inside the needle tube 3, the pressing rod 4 being slidably engaged inside the connecting seat 2, a support cylinder 5 integrally fixedly connected to the top of the handgrip 1, an adjusting screw 6 rotatably connected to the top of the support cylinder 5 via a bearing seat, a limit plate 7 threadedly connected to the outer surface of the adjusting screw 6, and a guide groove seat 8 fixedly connected to the side of the handgrip 1. A guide block 16 is slidably connected to the inner surface of the seat 8. The guide block 16 is fixedly connected to the limiting plate 7. The guide block 16 is slidably connected to the inner surface of the guide groove seat 8, which can guide the up and down movement of the limiting plate 7. The inner surface of the guide groove seat 8 is slidably set with the limiting plate 7. The bottom of the limiting plate 7 is tightly fitted with the needle tube body 3. The inside of the hand grip seat 1 is provided with an adjustment structure that drives the connecting seat 2 to move. The top of the hand grip seat 1 is fixedly provided with a socket 9 for limiting the needle tube body 3. The edge of the end face of the needle tube body 3 is inserted into the groove of the socket 9.

[0015] Working principle: In use, the needle tube body 3 is slidably inserted into the inner surface of the socket 9, and the handle of the pressing rod 4 is slidably inserted into the inner surface of the connecting seat 2. Then, by rotating the adjusting screw 6, the limiting plate 7 is moved and guided by the guide groove seat 8, so that the limiting plate 7 is tightly attached to the outer surface of the needle tube body 3. Finally, the servo motor 10 drives the threaded rod 11 to rotate, thereby driving the threaded sleeve 12 to rotate. The rotation of the threaded sleeve 12 drives the moving plate 13 to slide and limit on the outer surface of the guide rod 14, thereby driving the connecting seat 2 to move. The spring 15 is stretched or compressed for buffering and limiting, thereby driving the pressing rod 4 to stretch or push inside the needle tube body 3. Finally, the needle connected to the needle tube body 3 is inserted into the base of the corn, which can replace the method of hand support and fixation. The operator does not need to press with their hands, which improves the fixation effect and facilitates operation.

Claims

1. A corn stalk base sprayer for preventing lodging, comprising a hand grip (1), characterized in that, A connecting seat (2) is slidably provided on the top of the hand grip (1), and a needle tube body (3) is provided on the top of the hand grip (1). A pressing rod (4) is slidably provided inside the needle tube body (3). The pressing rod (4) is slidably engaged inside the connecting seat (2). A support cylinder (5) is integrally fixedly connected to the top of the hand grip (1). An adjusting screw (6) is rotatably connected to the top of the support cylinder (5) through a bearing seat. A limit plate (7) is threadedly connected to the outer surface of the adjusting screw (6). The side of the hand grip (1) is fixedly connected to a guide groove seat (8). The inner surface of the guide groove seat (8) is slidably disposed between the guide groove seat (8) and the limiting plate (7). The bottom of the limiting plate (7) is tightly fitted with the needle body (3). The hand grip (1) is provided with an adjustment structure that drives the connecting seat (2) to move. The top of the hand grip (1) is fixedly provided with a socket (9) for limiting the needle body (3). The edge of the end face of the needle body (3) is inserted into the groove of the socket (9).

2. The corn stalk base sprayer for lodging prevention according to claim 1, characterized in that, The inner surface of the connecting seat (2) is provided with a insertion groove for sliding insertion of the handle of the pressing rod (4).

3. The corn stalk base sprayer for lodging prevention according to claim 1, characterized in that, The adjustment structure includes a servo motor (10) fixedly installed inside the hand grip (1). The output shaft of the servo motor (10) is fixedly connected to a threaded rod (11). A threaded sleeve (12) is threadedly connected to the surface of the threaded rod (11). A movable plate (13) is fixedly connected to the outer surface of the threaded sleeve (12). The top of the movable plate (13) passes through the hand grip (1) and extends to the top of the hand grip (1) and is fixedly connected to the bottom of the connecting seat (2).

4. The corn stalk base sprayer for lodging prevention according to claim 3, characterized in that, A guide rod (14) slides through the interior of the movable plate (13). The guide rod (14) is fixedly connected to the hand grip (1). A spring (15) is sleeved on the outer surface of the guide rod (14). One side of the spring (15) is fixedly connected to the movable plate (13), and the other side of the spring (15) is fixedly connected to the inner wall of the hand grip (1).

5. The corn stalk base sprayer for lodging prevention according to claim 1, characterized in that, The inner surface of the guide groove seat (8) is slidably connected to a guide block (16), and the guide block (16) is fixedly connected to the limiting plate (7).