Deinsectization spraying device for rice seedlings

By designing an adjustable-height spray bar structure and a windproof baffle, the problems of inaccurate spraying and wind influence caused by the fixed height of the rice insecticide device were solved, improving the ease of operation and accuracy of the spraying device, and reducing labor intensity and maintenance costs.

CN224179005UActive Publication Date: 2026-05-01SHANGHAI SHENGSHI AGRICULTURAL TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI SHENGSHI AGRICULTURAL TECHNOLOGY CO LTD
Filing Date
2025-06-03
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

The existing rice insecticide spraying device has an adjustable spray rod height, which cannot be adapted to rice at different growth stages. This results in inaccurate spraying, waste of pesticides, increased labor intensity and costs, and is also susceptible to wind, leading to uneven spraying.

Method used

It adopts an adjustable height spray bar structure, and through the design of limit components and baffles, it can achieve flexible adjustment of the spray bar height and wind protection. The combination of limit frame, slider, limit bar, spring, push button and baffle can achieve convenient adjustment and wind protection function.

Benefits of technology

It improves the ease of operation and accuracy of spraying devices, reduces labor intensity and maintenance costs, and adapts to rice at different growth stages and complex field environments.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a rice seedling disinsection spraying device, which relates to the technical field of rice seedling disinsection, and comprises a mounting vehicle body, a pesticide storage barrel, spraying rods arranged on the two sides of the mounting vehicle body, and adjusting pieces arranged on the outer sides of the two ends of the mounting vehicle body and used for adjusting the height of the spraying rods, the pressing button is pressed to drive the limiting rod to vertically move on the inner side of the sliding block, the compression spring stores elastic potential energy, so that the limiting ball is separated from the limiting block, the pressure between the non-slip mat and the inner wall face of the trapezoidal through groove of the limiting frame is reduced, and a user can pull the spraying rod to adjust the vertical height. After the pressure is released, the elastic potential energy of the spring pushes the limiting rod to reset, and the limiting ball relimits the block and extrudes the inner wall surface of the trapezoidal through groove of the limiting frame through the non-slip mat.
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Description

A rice seedling pest control spraying device Technical Field

[0001] This utility model relates to the field of pest control technology for rice seedlings, and in particular to a rice seedling pest control spraying device. Background Technology

[0002] Rice, a vital food crop with a long history of cultivation and consumption spanning millennia, feeds half the world's population. Across the vast plains of Asia, the fields of southern Europe, the wetlands of tropical America, and parts of Africa, swaying rice stalks create unique agricultural landscapes. Although rice ranks after maize and wheat in global food crop production, its immense capacity to sustain populations makes it a crucial food source for many lives.

[0003] Insecticide devices for rice cultivation are agricultural machinery specifically designed to kill pests during rice cultivation through physical, chemical, or biological methods, thereby protecting the healthy growth of rice. Their core function is to precisely and efficiently reduce pest damage to rice, lower the risk of diseases and pests, and improve rice yield and quality.

[0004] A search revealed Chinese patent number CN218571254U, which discloses an insecticidal device for rice cultivation, belonging to the technical field of rice pest control equipment. This insecticidal device for rice cultivation includes a vehicle body, a spraying mechanism, and a mixing mechanism. The vehicle body includes a frame and a push rod welded to the outer wall of the top of the frame. Two wheels are connected to the outer walls of both sides of the frame by bearings, improving insecticidal efficiency and thus preventing mass mortality of rice and increasing yield.

[0005] However, during the implementation of the above technical solution, at least the following technical problems were discovered:

[0006] Difficulty in adjusting height: The vertical height of the spray bar of the above-mentioned rice insecticide device cannot be adjusted, making it unsuitable for rice at different growth stages. During the seedling stage, the rice seedlings are short, and a fixed-height spray bar can easily cause the pesticide to be sprayed too high, with most of the pesticide falling to the ground before contacting the seedlings, wasting pesticides and resulting in poor insecticidal effect. The equipment needs to be adjusted multiple times or manually bent over to operate, increasing labor intensity. In addition, the equipment needs to be replaced at different stages, resulting in high costs.

[0007] Susceptible to environmental influences: The higher the spraying pole is, the more easily the sprayed pesticide is affected by wind. Field winds can cause the sprayed droplets to deviate from the target rice and spread to the surrounding area, resulting in insufficient pesticide application to the rice plants, reduced insecticidal effect, and some pesticide solution is wasted due to drift, requiring repeated spraying and increasing costs. It is difficult to adapt to complex field conditions. Summary of the Invention

[0008] The purpose of this utility model is to provide a rice seedling insecticidal spraying device that solves the problems of the inability to adjust the vertical height of the spraying rod in the above-mentioned rice insecticidal devices, making them unsuitable for rice at different growth stages. During the rice seedling stage, the rice seedlings are short, and a fixed-height spraying rod can easily lead to the spraying of pesticides too high, with most of the pesticide falling to the ground before contacting the seedlings, wasting pesticides and resulting in poor insecticidal effect. It also requires multiple adjustments to the equipment or manual bending operation, increasing labor intensity. Furthermore, the equipment needs to be replaced at different stages, which is costly. In addition, wind in the field can cause the sprayed droplets to deviate from the target rice and spread to the surrounding area, resulting in insufficient pesticide coverage on the rice plants, reduced insecticidal effect, and some pesticides being wasted due to drift, requiring repeated spraying, increasing costs and making it difficult to adapt to complex field conditions.

[0009] To achieve the above objectives, the present invention adopts the following technical solution: a rice seedling pest control spraying device, comprising a mounting vehicle and a pesticide storage tank, and further comprising spraying rods disposed on both sides of the mounting vehicle, adjusting components disposed on the outer sides of both ends of the mounting vehicle for adjusting the height of the spraying rods, baffles disposed on the outer side of the spraying rods, and limiting components disposed on one side of the baffles.

[0010] In a preferred embodiment, the adjusting component includes a limiting frame disposed on the outer sides of both ends of the mounting vehicle body, a slider disposed on the inner side of the limiting frame, a spraying rod disposed on one side of the slider for spraying medicine at a designated location, a limiting rod disposed on the inner side of the slider, a limiting ball disposed on the outer side of the limiting rod, and limiting blocks disposed on the inner sides of both ends of the slider for limiting the position of the slider.

[0011] In a preferred embodiment, a spring is fixedly connected to the outer side of the bottom end of the limiting rod, and one outer end of the spring is connected to the inner side of the bottom end of the slider.

[0012] In a preferred embodiment, a push button is provided on the outer side of one end of the limiting rod, and the push button is made of silicone.

[0013] In a preferred embodiment, an anti-slip pad is provided on the outer side of one end of the limiting block, and the anti-slip pad is made of rubber.

[0014] In a preferred embodiment, a handle is provided on one side of the spray bar.

[0015] In a preferred embodiment, the limiting component includes a mounting frame disposed on the outer sides of both ends of the mounting vehicle body, a lead screw disposed on the inner side of the mounting frame, and a moving block disposed on the outer side of the lead screw, for driving the baffle to move.

[0016] In a preferred embodiment, the bottom end of the baffle is provided with a rectangular through groove for rice to pass through its inner side.

[0017] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0018] 1. In use, pressing the button causes the limiting rod to move vertically inside the slider, compressing the spring to store elastic potential energy. This causes the limiting ball to disengage from the limiting block, and reduces the pressure between the anti-slip pad and the inner wall of the trapezoidal groove of the limiting frame. The user can pull the spraying rod to adjust the vertical height. After releasing the pressure, the elastic potential energy of the spring pushes the limiting rod to reset, the limiting ball to re-limit the block, and the anti-slip pad to press against the inner wall of the trapezoidal groove of the limiting frame. The single-button trigger and elastic potential energy-assisted reset provide the advantages of convenient operation. The segmented limiting allows for free height adjustment, making the adjustment more flexible. It can accurately adapt to different seedling heights and quickly switch working states, thereby improving field operation efficiency and pest control effect.

[0019] 2. In use, this utility model allows the moving block to slide inside the mounting frame by rotating the knob to drive the lead screw, thus clamping and unfolding the two baffles. It has multiple advantages: the simple method of rotating the knob enables quick adjustment and is easy to use; when the baffles are clamped, they wrap around the outside of the spraying rod, which on the one hand ensures that the rice can pass through the channel and the pesticide can be sprayed accurately, effectively resisting wind interference and improving spraying accuracy and pest control effect; on the other hand, it can protect the spraying rod, buffer external impacts, reduce component damage, enhance the practicality and durability of the device, adapt to complex field operation environments, and reduce maintenance costs. Attached Figure Description

[0020] Figure 1 is a schematic diagram of the main structure of a rice seedling pest control spraying device provided by this utility model;

[0021] Figure 2 is a schematic diagram of the limiting frame and slider in a rice seedling pest control spraying device provided by this utility model;

[0022] Figure 3 is a schematic diagram of the push button and anti-slip pad in a rice seedling pest control spraying device provided by this utility model;

[0023] Figure 4 is a cross-sectional view of the slider in a rice seedling pest control spraying device provided by this utility model;

[0024] Figure 5 is an enlarged view of point A in Figure 1 of a rice seedling insect control spraying device provided by this utility model.

[0025] Legend:

[0026] 1. Vehicle body; 2. Medicine storage tank; 3. Spraying bar; 301. Limiting frame; 302. Slider; 303. Limiting rod; 304. Limiting ball; 305. Limiting block; 306. Spring; 307. Press button; 308. Anti-slip mat; 309. Handle; 4. Baffle; 401. Mounting frame; 402. Lead screw; 403. Moving block; 404. Knob. Detailed Implementation

[0027] 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.

[0028] Example 1

[0029] Please refer to Figures 1 to 4. This utility model provides a technical solution: a rice seedling pest control spraying device, including a mounting vehicle 1, a storage tank 2, a spraying rod 3, and an adjusting component, wherein the storage tank 2 is installed on the upper surface of the mounting vehicle 1.

[0030] In this embodiment, as shown in Figure 4, the adjusting component includes: a limiting frame 301 fixedly connected to the outer sides of both ends of the mounting vehicle body 1; a trapezoidal through groove is provided on the inner side of one end of the limiting frame 301; a slider 302 is slidably connected to the inner side of the trapezoidal through groove of the limiting frame 301; rectangular through grooves are provided on the inner sides of both ends of the slider 302; a limiting block 305 is slidably connected to the inner side of the slider 302; an inclined structure on one side of the limiting block 305 contacts the inner wall surface of the trapezoidal through groove of the limiting frame 301; two spherical limiting balls 304 are fixedly connected to the outer side of the limiting rod 303 to limit the limiting block 305; a spring 306 is fixedly connected to the outer side of one end of the limiting rod 303; the outer side of one end of the spring 306 is fixedly connected to the inner side of the bottom end of the slider 302; a press button 307 made of silicone is fixedly connected to the outer side of one end of the limiting rod 303; and one side of the spray rod 3 is fixedly connected to one side of the slider 302.

[0031] The spray bar 3 has a handle 309 fixedly connected to its upper surface to facilitate vertical movement of the spray bar 3. A rubber anti-slip pad 308 fixedly connected to one side of the limiting block 305 is used to increase the friction with the limiting frame 301.

[0032] In specific implementation: When using the device, the user can spray medicine at a designated location using the spray rod 3. When the user needs to adjust the vertical height of the spray rod 3, the user can press the button 307. The button 307 drives the limiting rod 303 to move vertically inside the slider 302, simultaneously compressing the spring 306 and storing elastic potential energy, until the limiting ball 304 moves to the outside of one end of the limiting block 305. At this time, the limiting ball 304 disengages from the limiting block 305, and the limiting block 305 loses the limiting effect of the limiting ball 304, thus allowing the slider 302 to move vertically. The inner side moves to a certain extent, that is, the pressure between the anti-slip pad 308 at the end of the limiting block 305 and the inner wall of the trapezoidal groove of the limiting frame 301 is reduced. At this time, the user can pull the spray rod 3 vertically upward by the handle 309. After reaching the position, the pressure on the button 307 is released, the elastic potential energy of the spring 306 is released, and then the limiting rod 303 is pushed vertically upward, which can drive the limiting ball 304 to limit the inner side of the limiting block 305 again, and then push the limiting block 305 and the anti-slip pad 308 to squeeze the inner wall of the trapezoidal groove of the limiting frame 301 again.

[0033] Example 2

[0034] This application provides a technical solution for wind protection during the spraying of medicine by the spraying rod 3, as shown in Figures 1 and 5. The overall concept is as follows:

[0035] The limiting component includes: a mounting frame 401 fixedly connected to the outer sides of both ends of the mounting vehicle body 1 for mounting baffle 4; a lead screw 402 rotatably connected to the inner side of the mounting frame 401; a moving block 403 threadedly connected to the outer side of the lead screw 402; the lead screw 402 is used to drive the moving block 403 to move horizontally within the mounting frame 401; a knob 404 is fixedly connected to the outer side of the end of the lead screw 402; and one side of the moving block 403 is fixedly connected to one side of the baffle 4.

[0036] Among them, the baffle 4 has an arc-shaped structure. When the outer ends of the two baffles 4 come into contact, they can completely cover the outer side of the spray bar 3.

[0037] It should be noted that a rectangular through groove is provided on the outer side of the bottom end of the baffle 4, and the highest point of the through groove on the baffle 4 is flush with the spraying part of the spraying rod 3, so as to ensure that most of the rice can pass through its inner side.

[0038] In practice, when the user needs to protect the sides of the spray bar 3 from wind, the user can rotate the screw 402 through the knob 404, which will cause the moving block 403 to slide inside the mounting frame 401. This will cause the two baffles 4 to clamp towards the center or move to the sides. When they clamp towards the center, they can wrap around the outside of the spray bar 3. When the rice passes through the slots in the baffles 4, the spray bar 3 can spray the rice with pesticides. This can minimize the impact of wind on the pesticide spraying range. At the same time, the baffles 4 can provide a certain degree of protection for the spray bar 3, preventing it from being directly impacted.

[0039] Working principle:

[0040] Based on Example 1, pressing the button 307 causes the limiting rod 303 to move vertically inside the slider 302, compressing the spring 306 to store elastic potential energy. This causes the limiting ball 304 to disengage from the limiting block 305, reducing the pressure on the anti-slip pad 308 and the inner wall of the trapezoidal groove of the limiting frame 301. The user can pull the spraying rod 3 to adjust the vertical height. After releasing the pressure, the elastic potential energy of the spring 306 pushes the limiting rod 303 back to its original position, and the limiting ball 304 re-limits the block 305 and presses the inner wall of the trapezoidal groove of the limiting frame 301 through the anti-slip pad 308. The system is triggered by a single button and reset with the assistance of elastic potential energy, offering the advantages of convenient operation. The segmented limiting allows for free height adjustment, making the adjustment more flexible. It can accurately adapt to different seedling heights and quickly switch working states, thereby improving field operation efficiency and pest control effect.

[0041] Based on Example 2, rotating the knob 404 drives the lead screw 402, causing the moving block 403 to slide inside the mounting frame 401, thereby clamping and unfolding the two baffles 4. This method has multiple advantages. The simple method of rotating the knob 404 enables quick adjustment and is easy to use. When the baffles 4 are clamped, they wrap around the outside of the spraying rod 3. On the one hand, they can ensure that the rice can pass through the channel and the pesticide can be sprayed accurately, effectively resisting wind interference and improving spraying accuracy and pest control effect. On the other hand, they can provide protection for the spraying rod 3, buffer external impacts, reduce component damage, enhance the practicality and durability of the device, adapt to complex field operation environments, and reduce maintenance costs.

[0042] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the present utility model.

Claims

1. A rice seedling pest control spraying device, comprising a mounting vehicle (1) and a pesticide storage tank (2), characterized in that: Also includes: Spraying rod (3) is provided on both sides of the mounting vehicle body (1); adjusting member is provided on the outer side of both ends of the mounting vehicle body (1) for driving the spraying rod (3) to move vertically and limiting it; baffle (4) is provided on the outer side of the spraying rod (3); limiting member is provided on one side of the baffle (4).

2. The rice seedling pest control spraying device according to claim 1, characterized in that: The adjusting components include: a limiting frame (301) disposed on the outer sides of both ends of the mounting vehicle body (1); a slider (302) disposed on the inner side of the limiting frame (301); a spraying rod (3) disposed on one side of the slider (302) for spraying medicine at a designated location; a limiting rod (303) disposed on the inner side of the slider (302); a limiting ball (304) disposed on the outer side of the limiting rod (303); and a limiting block (305) disposed on the inner sides of both ends of the slider (302) for limiting the position of the slider (302).

3. The rice seedling pest control spraying device according to claim 2, characterized in that: A spring (306) is fixedly connected to the outer side of the bottom end of the limiting rod (303), and one side of the spring (306) is connected to the inner side of the bottom end of the slider (302).

4. The rice seedling pest control spraying device according to claim 2, characterized in that: A button (307) is provided on the outer side of one end of the limiting rod (303), and the button (307) is made of silicone.

5. The rice seedling pest control spraying device according to claim 2, characterized in that: An anti-slip pad (308) is provided on the outer side of one end of the limiting block (305), and the anti-slip pad (308) is made of rubber.

6. The rice seedling pest control spraying device according to claim 2, characterized in that: A handle (309) is provided on one side of the spray bar (3).

7. The rice seedling pest control spraying device according to claim 1, characterized in that: The limiting component includes: a mounting frame (401) disposed on the outer sides of both ends of the mounting vehicle body (1); a lead screw (402) disposed on the inner side of the mounting frame (401); and a moving block (403) disposed on the outer side of the lead screw (402) for driving the baffle (4) to move laterally.

8. The rice seedling pest control spraying device according to claim 1, characterized in that: The bottom end of the baffle (4) is provided with a rectangular through groove for rice to pass through its inner side.

Citation Information

Patent Citations

  • Insecticidal device for rice planting

    CN218571254U