A nest medicine injection device for red imported fire ant prevention and control

By designing an injection device with multiple outlet holes and utilizing the combination of rubber plugs and injection components, the problems of clogging and leakage of the drug injection device inside the red imported fire ant nest were solved, achieving widespread diffusion and deep coverage of the drug solution, thus improving the extermination effect and operational efficiency.

CN224386583UActive Publication Date: 2026-06-23保山市土壤肥料与植保植检站(保山市农药监督管理所)

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
保山市土壤肥料与植保植检站(保山市农药监督管理所)
Filing Date
2025-07-28
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

Existing red imported fire ant control devices are prone to clogging and pesticide leakage when inserted into the ant nest, failing to achieve widespread diffusion of the pesticide solution within the nest, resulting in pesticide waste and incomplete extermination.

Method used

A syringe with multiple outlet holes was designed, equipped with a rubber plug and an injection assembly. The rubber plug seals the outlet holes during insertion. During injection, the movement of the rubber plug is controlled by the cooperation of the ring and the top ring to expose the outlet holes. Combined with the push of the piston, the liquid is diffused in a porous manner.

Benefits of technology

It effectively prevents soil clogging, reduces pesticide waste, ensures that the pesticide penetrates deep into the ant nest, and improves the comprehensiveness and efficiency of pest control.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a nest medicine injection device for solenopsis invicta prevention and control, including injection cylinder, the bottom fixed connection of injection cylinder has the conical head, the inside slide connection of injection cylinder has the piston, the top fixed connection of piston has the metal support piece, the top fixed connection of metal support piece has the push rod. The utility model discloses through the rubber plug set in the process of inserting the anthill to form reliable seal to multiple liquid outlet holes, prevent the soil from entering and cause the blockage, and when injecting medicine, only need through the cooperation of annular ring and top ring can control rubber plug set to move and expose liquid outlet hole, both reduce the medicine waste, and can ensure that the medicine liquid reaches the deep layer in the nest, through the extrusion force of piston makes the insecticide spread to the solenopsis invicta nest inside from multiple liquid outlet holes, better covers the complicated nest passage, improves the overall nature of killing, reduces the recurrence hidden danger, and simultaneously convenient to multiple anthill continuously injects and kills, improves the operation efficiency.
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Description

Technical Field

[0001] This utility model relates to the field of red imported fire ant control technology, and in particular to a nest-injection device for red imported fire ant control. Background Technology

[0002] Red imported fire ants are a highly aggressive and prolific invasive species. Their nests are complex, typically 0.5 to 1 meter deep, and are difficult to detect in their early stages, only becoming easily discovered when they mature and rise above the ground. Therefore, once a red imported fire ant nest is discovered, effective control measures must be taken to prevent its spread and harm to humans. Injection is a precise method of exterminating red imported fire ants in their nests. By directly injecting a liquid containing a highly effective pesticide into the nest, the queen and most worker ants can be quickly killed, thus completely destroying the colony's reproductive capacity.

[0003] In existing technologies, traditional injection devices are prone to clogging when soil directly enters the liquid outlet during insertion into the ant nest. Furthermore, leakage often occurs during drug injection due to poor sealing, wasting drug and failing to ensure that the drug reaches the deeper layers of the nest. Traditional injection devices are mostly designed with a single or a few liquid outlets, which cannot achieve the wide diffusion of the drug within the nest as with multiple liquid outlets. Therefore, we propose an in-nest drug injection device for the control of red imported fire ants to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing an in-nest drug injection device for the control of red imported fire ants.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A nest-injection device for controlling red imported fire ants includes an injection cylinder, a conical head fixedly connected to the bottom of the injection cylinder, a piston slidably connected inside the injection cylinder, a metal support plate fixedly connected to the top of the piston, a push rod fixedly connected to the top of the metal support plate, multiple liquid outlet holes on the outer wall of the injection cylinder, a rubber plug sleeve slidably fitted on the outer wall of the injection cylinder, a metal sleeve fixedly fitted on the outer wall of the rubber plug sleeve, and an injection assembly on the outer wall of the injection cylinder.

[0007] Preferably, the injection assembly includes two connecting rods, the bottom of which is fixedly connected to the top of the metal sleeve, and the top of the two connecting rods is fixedly connected to the same ring. The top of the ring is fixedly connected to two springs, and the top of the two springs is fixedly connected to the same top ring. The bottom of the top ring is fixedly connected to the top of the syringe. This design facilitates continuous use of the injection assembly.

[0008] Preferably, the outer wall of the metal support plate is slidably connected to the inner wall of the injection cylinder, and the piston is moved by setting the metal support plate.

[0009] Preferably, a handle is fixedly connected to the top of the push rod, and the handle drives the push rod to move so that the piston can push out the insecticide.

[0010] Preferably, the inner wall of the ring is slidably connected to the outer wall of the syringe.

[0011] Preferably, a transparent acrylic plate is fixedly embedded in the outer wall of the injection cylinder, and the outer wall of the transparent acrylic plate is provided with multiple scale lines. By setting the transparent acrylic plate and scale lines, it is convenient to observe the amount of injection.

[0012] Compared with the prior art, the advantages of this utility model are:

[0013] This solution uses rubber plugs to reliably seal multiple effluent holes during insertion into the ant nest, preventing soil from entering and causing blockages. When injecting the pesticide, the movement of the rubber plugs to expose the effluent holes is controlled simply by the cooperation of the ring and the top ring, which reduces pesticide waste and ensures that the pesticide reaches deep into the nest. The piston extrusion force diffuses the insecticide from multiple effluent holes into the interior of the red imported fire ant nest, better covering the complex internal channels of the nest, improving the comprehensiveness of extermination, reducing the risk of recurrence, and facilitating continuous injection of pesticides into multiple nests, thus improving operational efficiency. Attached Figure Description

[0014] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the specific embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a three-dimensional structural diagram of an in-nest drug injection device for controlling red imported fire ants proposed in this utility model;

[0016] Figure 2 This is a cross-sectional structural diagram of an in-nest drug injection device for controlling red imported fire ants proposed in this utility model;

[0017] Figure 3 This utility model proposes an in-nest drug injection device for the control of red imported fire ants. Figure 2 A magnified structural diagram of part A in the diagram;

[0018] Figure 4 This is a front view structural diagram of an in-nest drug injection device for controlling red imported fire ants proposed in this utility model.

[0019] In the diagram: 1. Injector; 2. Conical head; 3. Piston; 4. Metal support plate; 5. Push rod; 6. Handle; 7. Dispensing hole; 8. Rubber plug; 9. Metal sleeve; 10. Connecting rod; 11. Ring; 12. Spring; 13. Top ring; 14. Transparent acrylic sheet; 15. Scale line. 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] Depend on Figures 1-4 As shown, this invention relates to an in-nest drug injection device for controlling red imported fire ants, including an injection cylinder 1, which provides storage space for the insecticide. A conical head 2 is fixedly connected to the bottom of the injection cylinder 1, and a piston 3 is slidably connected inside the injection cylinder 1. A metal support plate 4 is fixedly connected to the top of the piston 3. By pushing the piston 3, the insecticide in the injection cylinder 1 can be smoothly pushed out to achieve the injection of the agent. The outer wall of the metal support plate 4 is slidably connected to the inner wall of the injection cylinder 1. The metal support plate 4 enhances the structural strength of the piston 3, prevents the piston 3 from deforming due to uneven force during the pushing process, and can more stably transmit the thrust brought by the push rod 5 to ensure the smooth movement of the piston 3.

[0022] A push rod 5 is fixedly connected to the top of the metal support plate 4, and a handle 6 is fixedly connected to the top of the push rod 5. Multiple liquid outlet holes 7 are opened on the outer wall of the syringe 1. The agent is sprayed out through the multiple liquid outlet holes 7, so that the agent is more widely dispersed into the interior of the red imported fire ant nest. A rubber plug 8 is slidably fitted on the outer wall of the syringe 1. The rubber plug 8 can seal the multiple liquid outlet holes 7 to prevent soil from entering and blocking the liquid outlet holes 7. When injecting, the rubber plug 8 is moved to expose the liquid outlet holes 7, ensuring that the agent is sprayed out smoothly. Its rubber material has good sealing and elasticity, and the sealing effect is reliable. A metal sleeve 9 is fixedly fitted on the outer wall of the rubber plug 8, and the metal sleeve 9 enhances the structural stability of the rubber plug 8.

[0023] The outer wall of the syringe 1 is provided with an injection assembly, which includes two connecting rods 10. The two connecting rods 10 transmit the moving force of the ring 11 to the metal sleeve 9, thereby driving the rubber plug 8 to move. The two connecting rods 10 are symmetrically arranged to ensure the balance of force transmission.

[0024] The bottom of both connecting rods 10 is fixedly connected to the top of the metal sleeve 9. The top of both connecting rods 10 is fixedly connected to the same ring 11. The inner wall of the ring 11 is slidably connected to the outer wall of the syringe 1. The top of the ring 11 is fixedly connected to two springs 12. The top of the two springs 12 is fixedly connected to the same top ring 13. The elastic force of the springs 12 can drive the ring 11 to reset, thereby causing the rubber plug 8 to re-block the liquid outlet 7, realizing automatic reset, eliminating the manual reset step, and improving the efficiency of continuous operation. The bottom of the top ring 13 is fixedly connected to the top of the syringe 1.

[0025] A transparent acrylic plate 14 is fixedly embedded in the outer wall of the syringe 1. The outer wall of the transparent acrylic plate 14 is provided with multiple scale lines 15. The transparent acrylic plate 14 and multiple scale lines 15 make it easy for users to observe the remaining amount of medicine in the syringe 1, understand the status of the medicine in time, and replenish the medicine in a timely manner.

[0026] Working principle: In use, a synthetic insecticide (such as pyrethroid) is mixed with water and poured into syringe 1. The piston 3 is then inserted into syringe 1 via handle 6 and push rod 5. The entire syringe is then inserted into the red imported fire ant nest via conical head 2, reaching deep inside. Two fingers are placed on the bottom of ring 11, and the thumb on the top ring 13. Pressing firmly moves ring 11 towards the top ring 13, compressing the two springs 12. This movement of ring 11 drives the two connecting rods 10 upwards, which in turn moves the metal sleeve 9 upwards. The metal sleeve 9 moves upward, causing the rubber plug 8 to move upward. The upward movement of the rubber plug 8 exposes multiple liquid outlet holes 7. The other hand presses the handle 6, causing the handle 6 to move the push rod 5 downward. The push rod 5 pushes the metal support plate 4 and piston 3 downward. The piston 3 pushes the insecticide in the syringe 1 to spray outward from the multiple liquid outlet holes 7, which helps to disperse into the interior of the red imported fire ant nest. When the ring 11 is released, the ring 11 is reset by the elastic force of the two springs 12, causing the rubber plug 8 to block the multiple liquid outlet holes 7 again, preventing the insecticide from flowing out, and then injecting and killing other red imported fire ant nests.

[0027] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A nest-injection device for controlling red imported fire ants, comprising an injection cylinder (1), characterized in that, A conical head (2) is fixedly connected to the bottom of the syringe (1). A piston (3) is slidably connected inside the syringe (1). A metal support plate (4) is fixedly connected to the top of the piston (3). A push rod (5) is fixedly connected to the top of the metal support plate (4). Multiple liquid outlet holes (7) are opened on the outer wall of the syringe (1). A rubber plug (8) is slidably fitted on the outer wall of the syringe (1). A metal sleeve (9) is fixedly fitted on the outer wall of the rubber plug (8). An injection assembly is provided on the outer wall of the syringe (1).

2. The nest-injection device for controlling red imported fire ants according to claim 1, characterized in that, The injection assembly includes two connecting rods (10), the bottom of which is fixedly connected to the top of the metal sleeve (9), and the top of the two connecting rods (10) is fixedly connected to the same ring (11). The top of the ring (11) is fixedly connected to two springs (12), and the top of the two springs (12) is fixedly connected to the same top ring (13). The bottom of the top ring (13) is fixedly connected to the top of the injection cylinder (1).

3. The nest-injection device for controlling red imported fire ants according to claim 1, characterized in that, The outer wall of the metal support plate (4) is slidably connected to the inner wall of the injection cylinder (1).

4. The nest-injection device for controlling red imported fire ants according to claim 1, characterized in that, A handle (6) is fixedly connected to the top of the push rod (5).

5. The nest-injection device for controlling red imported fire ants according to claim 2, characterized in that, The inner wall of the ring (11) is slidably connected to the outer wall of the injection cylinder (1).

6. The nest-injection device for controlling red imported fire ants according to claim 1, characterized in that, The outer wall of the injection cylinder (1) is fixedly inlaid with a transparent acrylic plate (14), and the outer wall of the transparent acrylic plate (14) is provided with multiple scale lines (15).