A pesticide application device for ant nests

Abstract

This utility model relates to the field of pesticide application devices, and in particular to a pesticide application device for ant nests; it includes a T-shaped structure with a main cylinder and handle integrally formed, and an inverted quadrangular pyramidal diffuser head fixed at the bottom of the main cylinder; the main pesticide hole is provided at the bottom of the inclined surface of the diffuser head, and the upper part has radially distributed downward diagonal diffuser holes, the inner wall of the diffuser holes is tapered and rounded to prevent clogging; the top of the diffuser head is hinged to a diffuser plate that matches the inclined surface, forming an interference seal when closed; the handle drives the diffuser plate to open at an angle of 45°-65° through a pull rod, opening the diffuser chamber in the nest; the pesticide storage tube is connected to the main pesticide hole to form a continuous channel; this device realizes direct application of the pesticide to the core area and multi-directional scattering of the pesticide through the ant trails, expanding the coverage area and overcoming the shortcomings of insufficient diffusion in traditional pesticide application.

Description

Technical Field

[0001] This utility model relates to the field of pesticide application devices, and in particular to a pesticide application device for ant nests. Background Technology

[0002] Ant nest spraying devices are key tools in agricultural pest control, specifically designed for precise application of pesticides to underground ant nests. Their core function is to deliver insecticidal granules or powders directly deep into the nest, achieving efficient eradication by disrupting the ant colony's reproductive chain. These devices typically consist of a pesticide reservoir, a spray pipe, and an operating mechanism, and must balance soil penetration with pesticide diffusion efficiency.

[0003] However, traditional straight-tube or funnel-type pesticide application devices have serious drawbacks. When the operator pours the pesticide into the ant nest entrance through the straight tube, the pesticide accumulates in the shallow area of ​​the channel due to gravity, making it difficult to penetrate into the intricate deep ant tunnel network. In a typical control scenario, farmers face large-scale outbreaks of red imported fire ant nests after rain. At this time, the surface of the ant mound is hardened by rainwater, and the granular pesticide applied through the straight tube often remains within 5cm of the nest entrance, while the queen's reproductive chamber is often located 10cm or even deeper underground. Because the pesticide cannot spread to the core area of ​​the nest, worker ants can only clean the contaminated soil at the nest entrance, resulting in a queen survival rate of over 70%. Three weeks later, the recurrence rate of ant nests in the same area exceeds 60%, forcing farmers to repeatedly apply pesticides, increasing economic costs and exacerbating pesticide environmental pollution. More seriously, traditional devices are completely ineffective against multi-layered ant nests. For example, in harvest ant nests, the crisscrossing storage channels and nurseries are distributed within a horizontal radius of 20 centimeters. The pesticide injected through the straight pipe only covers less than 10% of the effective area, leading to the complete failure of the control operation. These structural defects have long restricted the actual effectiveness of agricultural pest control technology.

[0004] Therefore, this application provides a pesticide application device for ant nests to solve the problems mentioned in the background art. Utility Model Content

[0005] The purpose of this invention is to provide a pesticide application device for ant nests, which solves the problems of traditional straight pipe or funnel-type pesticide application devices that cause pesticides to accumulate at the entrance of the nest, resulting in a small diffusion range and low penetration efficiency of the pesticides within the nest.

[0006] To solve the above-mentioned technical problems, this utility model provides a pesticide application device for ant nests, including a T-shaped structure in which the main body and handle are integrally formed. An inverted quadrangular pyramid diffuser head is fixedly connected to the bottom of the main body. The diffuser head has a vertical surface, an inclined surface opposite to the vertical surface, and two transitional side surfaces connecting the two. A main pesticide hole penetrating the diffuser head is provided at the center of the lowest position of the inclined surface, and multiple downwardly oriented diffuser holes are evenly distributed in the upper area of ​​the inclined surface. The diffuser head is hinged to the top of the diffuser via a pivot, and the shape of the diffuser matches and fits the inclined surface; a pressure handle is set on the lower side of the handle, and the pressure handle is driven to a vertically set pull rod, the bottom of which is connected to the outer wall of the diffuser; a drug storage tube is fixedly installed inside the main cylinder cavity, the top of the drug storage tube is connected to a funnel-shaped lower drug hopper, and the bottom of the drug storage tube is connected to the main drug hole to form a continuous drug channel.

[0007] A further improvement of this utility model is that the vertical surface of the diffuser head is parallel to the axis of the main cylinder, the inclined surface is at an angle of 35°-50° to the horizontal plane, and the two transitional sides smoothly connect the edges of the vertical surface and the inclined surface.

[0008] A further improvement of this utility model is that: when the diffuser is closed, it completely covers the inclined surface, and an interference-sealed fit structure is formed between the edge of the diffuser and the inclined surface.

[0009] The further improvement of this utility model is that: the diameter of the main drug hole is 8-12mm and its axis is parallel to the vertical plane; the number of diffusion holes is 4-6 and the diameter of the holes is 3-5mm; and the axis of all diffusion holes extends obliquely downward at 10°-20° to the normal of the inclined plane.

[0010] A further improvement of this utility model is that the diffusion holes are radially distributed on the inclined surface with the main drug hole connecting node as the center.

[0011] A further improvement of this utility model is that: the inner wall of the diffusion hole has a taper of 3°-5°, the taper direction is that the diameter gradually decreases from the hole opening to the bottom of the hole, the edge of the hole opening is rounded, and the depth of the diffusion hole is 2.5-3 times the hole diameter.

[0012] A further improvement of this utility model is that the pull rod is vertically installed inside the guide ring on the side wall of the main cylinder, the top end of the pull rod is hinged to the pressure handle, and the bottom end of the pull rod is directly hinged to the middle of the outer side wall of the diffuser.

[0013] A further improvement of this utility model is that the pressure handle is an arc-shaped trigger structure, a 3-5cm reset gap is reserved between the pressure handle and the handle, and the opening angle of the pull rod travel limiting diffuser is 45°-65°.

[0014] By adopting the above technical solution, this utility model has the following beneficial effects: 1. This utility model provides a pesticide application device for ant nests. The device utilizes a partitioned layout of a main pesticide hole at the bottom of a sloping surface and radially arranged diffusion holes at the top to create a three-dimensional diffusion network of pesticide within the nest. The main pesticide hole, with a diameter of 8-12 mm, reaches the deepest reproductive chamber of the nest. Four to six diffusion holes are evenly distributed radially around the main pesticide hole, each extending downwards at a 10°-20° angle, forming a pesticide coverage network radiating from the core area to the surrounding ant tunnels. This structure overcomes the shortcomings of traditional devices that accumulate pesticide at the nest entrance, allowing the pesticide to cover both vertical depth and horizontal breadth simultaneously, increasing the pesticide concentration in the core area of ​​the nest by more than three times.

[0015] 2. This utility model provides a pesticide application device for ant nests. The device utilizes a 3°-5° tapered inner wall of the diffuser hole combined with a continuous channel via a pesticide storage tube to construct a residue-free pesticide delivery system. The gradually narrowing diameter from the orifice opening to the bottom prevents granular pesticide from getting stuck, while rounded corners eliminate the risk of soil embedding. A 2.5-3 times depth-to-diameter ratio maintains the kinetic energy for pesticide spraying. Simultaneously, the pesticide storage tube directly connects to the main pesticide hole, forming a continuous channel and avoiding pesticide retention in the transfer chamber of traditional devices. This dual-effect synergy achieves a pesticide utilization rate of 98%, reducing pesticide waste by 80% compared to traditional devices.

[0016] 3. This utility model provides a pesticide application device for ant nests. The device achieves stable penetration and efficient operation through a T-shaped structure where the main cylinder and handle are integrally formed, combined with linear transmission via the pressure handle and pull rod. The integrally formed main cylinder and handle provide vertical penetration torque, while the vertical surface of the inverted square pyramid diffuser head resists soil lateral pressure. Combined with a 3-5cm reset gap and a 45°-65° limiting opening angle on the pressure handle, the entire process of penetration, spreading, and application can be completed with one hand. It maintains precise operation even in compacted soil, increasing efficiency by 3 times.

[0017] 4. This utility model provides a pesticide application device for ant nests. This device overcomes the problem of pesticide application channel blockage through an interference seal between the diffuser plate and the inclined surface, and a dynamic opening and closing mechanism. When the diffuser plate is closed, it completely seals the inclined surface with a 0.05mm micro-interference seal, preventing soil from entering the main pesticide hole and the diffuser hole. When it opens, the precise transmission of the pull rod within the guide ring expands the diffuser chamber within the nest. Even in heavy clay soil, it can ensure 100% opening and closing reliability, eliminating the soil backflow failure of traditional devices at its source. Attached Figure Description

[0018] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of an overall device for applying pesticides to ant nests. Figure 2 for Figure 1 The main view; Figure 3 This is a schematic diagram of the overall expansion state of the diffuser sheet; Figure 4 for Figure 3 An enlarged schematic diagram of part A in the middle; Figure 5 A cross-sectional view of a pesticide application device for ant nests; Figure 6 for Figure 5 Enlarged schematic diagram of part B.

[0020] Reference numerals in the attached drawings: 1. Main cylinder; 2. Handle; 3. Diffuser head; 4. Vertical surface; 5. Inclined surface; 6. Diffuser plate; 7. Pull rod; 8. Pressure handle; 9. Drug storage tube; 10. Drug hopper; 11. Main drug hole; 12. Diffuser hole; 13. Guide ring. Detailed Implementation

[0021] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0022] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] The present invention will be further explained below with reference to specific embodiments.

[0025] like Figures 1-6 As shown, this embodiment provides a pesticide application device for ant nests, comprising a T-shaped structure integrally formed with a main cylinder 1 and a handle 2, which ensures stable transmission of operating torque. An inverted quadrangular pyramidal diffuser head 3 is fixedly connected to the bottom of the main cylinder 1. The diffuser head 3 has a vertical surface 4, an inclined surface 5 opposite to the vertical surface 4, and two smoothly connected transition sides. The vertical surface 4 is parallel to the axis of the main cylinder 1, resisting lateral displacement when inserted into the soil; the inclined surface 5 forms a 40° angle with the horizontal plane, reducing penetration resistance; the transition sides are rounded to eliminate stress concentration.

[0026] like Figures 1-4 As shown, in this embodiment, a through-hole 11 is provided at the center of the lowest part of the inclined plane 5, with its axis parallel to the vertical plane 4 to maintain a vertical drug delivery path. Four diffusion holes 12, each with a diameter of 4 mm, are evenly distributed in the upper region of the inclined plane, with their axes extending downwards at a 15° angle to the normal of the inclined plane 5. The diffusion holes 12 are radially distributed with the center of the through-hole 11 as a reference, and the center-to-center distance between adjacent holes is equal. The inner wall of the diffusion hole 12 is machined with a 3° taper, the diameter gradually decreasing from the opening to the bottom, the edge of the opening is rounded, and the depth is controlled to be 2.8 times the hole diameter. This design eliminates the risk of particle retention.

[0027] like Figures 1-4 As shown, in this embodiment, the top of the diffuser head 3 is hinged to the diffuser plate 6 via a pivot, and the curvature of the diffuser plate 6 perfectly matches the inclined surface 5. When closed, the edge of the diffuser plate 6 forms a 0.05mm interference seal with the inclined surface 5, preventing soil from entering the pores. An arc-shaped pressure handle 8 is provided on the lower side of the handle 2, with a 4cm reset gap reserved between the pressure handle 8 and the handle 2. The pressure handle 8 is hinged to the top of the pull rod 7, which is vertically installed in the guide ring 13 on the side wall of the main cylinder 1, and its bottom end is directly hinged to the middle of the outer side wall of the diffuser plate 6. This transmission mechanism allows the diffuser plate 6 to open up to 65°, expanding the diffusion chamber in the soil. A drug storage tube 9 is fixedly installed inside the cylinder cavity of the main cylinder 1. The top of the drug storage tube 9 is connected to a funnel-shaped lower drug hopper 10 for drug filling, and the bottom is connected to the main drug hole 11 through a smooth transition section. After the device is inserted into the nest, press the handle 8 to open the diffuser plate 6. The pesticide falls directly into the core area at the bottom of the nest through the main pesticide hole 11, and at the same time, it is scattered into the horizontal ant trails through the diffuser hole 12, achieving three-dimensional coverage. After releasing the handle 8, the diffuser plate 6 closes and seals the channel, and the device is pulled out vertically to complete the operation.

[0028] This utility model also provides a working principle for an ant nest pesticide application device: During operation, the user first injects granular pesticide into the storage tube 9 through the dispensing hopper 10. The pesticide falls freely down the storage tube 9 to the main pesticide hole 11 for temporary storage. Holding the handle 2, the user aligns the device vertically with the entrance of the ant nest. The diffuser head 3 at the bottom of the main cylinder 1 penetrates the soil layer thanks to the lateral pressure resistance of the vertical surface 4 and the inverted square pyramid tip structure. Once the diffuser head 3 has penetrated deep into the core area of ​​the nest, pressing the handle 8 with a single finger drives the pull rod 7 downward along the guide ring 13. The pull rod 7 pulls the diffuser plate 6 to open outward around the hinge axis, creating a temporary diffusion chamber in the soil. At this time, the pesticide falls directly into the breeding area at the bottom of the nest through the main pesticide hole 11, and simultaneously scatters in multiple directions to the surrounding ant tunnels through the radially distributed diffuser holes 12 on the inclined surface 5. After completing the application, the user releases the handle 8, and the diffuser plate 6 automatically closes to restore the sealed state. The interference seal structure blocks the soil backflow channel, and the device is then pulled out vertically to complete a single operation.

[0029] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. An ant nest baiting device, characterised in that: The T-shaped structure includes a main body (1) and a handle (2) integrally formed. The bottom of the main body (1) is fixedly connected to an inverted quadrangular pyramid diffuser head (3). The diffuser head (3) has a vertical surface (4), an inclined surface (5) opposite to the vertical surface (4), and two transitional side surfaces connecting the two. The main medicine hole (11) penetrating the diffuser head (3) is provided at the center of the bottom of the inclined surface (5). Multiple downwardly arranged diffuser holes (12) are evenly distributed in the upper part of the inclined surface (5). The diffuser head (3) is hinged to the diffuser plate (6) at the top via a pivot, and the diffuser plate (6) is shaped to fit the inclined surface (5); a pressure handle (8) is provided on the lower side of the handle (2), and the pressure handle (8) is connected to a vertically arranged pull rod (7), and the bottom end of the pull rod (7) is connected to the outer wall of the diffuser plate (6); a drug storage tube (9) is fixedly installed inside the main cylinder (1), and the top of the drug storage tube (9) is connected to the funnel-shaped lower drug hopper (10), and the bottom of the drug storage tube (9) is connected to the main drug hole (11) to form a continuous drug channel.

2. A device for applying a pesticide to an ant nest according to claim 1, wherein: The vertical surface (4) of the diffuser head (3) is parallel to the axis of the main cylinder (1), and the inclined surface (5) is inclined at an angle of 35°-50° to the horizontal plane. The two transitional sides smoothly connect the edges of the vertical surface (4) and the inclined surface (5).

3. A device for applying a pesticide to an ant nest according to claim 1, wherein: When the diffuser (6) is closed, it completely covers the inclined surface (5), and an interference seal is formed between the edge of the diffuser (6) and the inclined surface (5).

4. A device for applying a pesticide to an ant nest according to claim 1, wherein: The main orifice (11) has a diameter of 8-12 mm and its axis is parallel to the vertical plane (4). There are 4-6 diffuser holes (12) with a diameter of 3-5 mm. The axis of all diffuser holes (12) extends downward at an angle of 10°-20° to the normal of the inclined plane (5).

5. A device for applying a pesticide to an ant nest according to claim 4 wherein: The diffusion holes (12) are radially distributed on the inclined surface (5) with the main drug hole (11) as the center.

6. A device for applying a pesticide to an ant nest according to claim 5 wherein: The inner wall of the diffuser hole (12) has a taper of 3°-5°, and the taper direction is from the hole opening to the bottom of the hole, the hole opening edge is rounded, and the depth of the diffuser hole (12) is 2.5-3 times the hole diameter.

7. A device for applying a pesticide to an ant nest according to claim 1, wherein: The pull rod (7) is vertically installed inside the guide ring (13) on the side wall of the main cylinder (1). The top end of the pull rod (7) is hinged to the pressure handle (8), and the bottom end of the pull rod (7) is directly hinged to the middle of the outer side wall of the diffuser (6).

8. A device for applying a pesticide to an ant nest according to claim 1, wherein: The pressure handle (8) is an arc-shaped trigger structure. A 3-5cm reset gap is reserved between the pressure handle (8) and the handle (2). The travel limit diffuser (6) of the pull rod (7) has an opening angle of 45°-65°.

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