Inoculation device for preventing and treating corn ear rot
By combining the injection gun, electric push rod, and positioning plate, the problem of poor structure in existing corn ear rot inoculation devices has been solved, enabling rapid, accurate, and quantitative pathogen inoculation, avoiding accidental hand injuries, and improving inoculation efficiency and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GANSU AGRI UNIV
- Filing Date
- 2025-05-09
- Publication Date
- 2026-04-17
AI Technical Summary
The existing inoculation device for the prevention and control of corn ear rot has a poor structural design, which makes the pathogen inoculation process time-consuming, labor-intensive and unsafe, and cannot achieve accurate quantitative inoculation, thus affecting inoculation efficiency and safety.
The device employs a combination design of an injection gun, an electric push rod, a positioning plate, and an elastic strap. The electric push rod drives the positioning plate to pull the corn ear into contact with the gun head, achieving rapid and accurate inoculation. The spore suspension is evenly injected through the dispersed injection holes, and the elastic strap secures the ear to prevent accidental hand injury.
This method enables rapid, precise, and quantitative inoculation of corn ears, improving inoculation efficiency and safety, ensuring uniform distribution of spore suspension, and enhancing the control of corn ear rot.
Smart Images

Figure CN224133056U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of planting inoculation technology, specifically to an inoculation device for the prevention and control of corn ear rot. Background Technology
[0002] Corn ear rot is a widespread disease in corn-producing areas and a significant threat during the later stages of corn growth. Besides causing yield losses, the toxins produced by its pathogen, such as fumonisin and aflatoxin, pose serious health risks to humans and animals. Therefore, scientific control of corn ear rot is crucial. In research on corn ear rot prevention and control, pathogen inoculation is a vital prerequisite for determining the virulence of the pathogen, assessing the resistance of corn germplasm resources to ear rot, and controlling the disease. Quantitative injection of corn ears is an important inoculation method in this research. However, in current practice, workers must hold the corn ear and align the middle of the ear with the inoculation syringe before inoculation, which increases the risk of hand injury from the needle and makes the process cumbersome. Furthermore, to accurately identify the resistance of corn germplasm resources to ear rot, a quantitative amount of pathogen is usually inoculated into the ear; however, current syringe designs are relatively simple and cannot achieve precise and controllable quantitative inoculation of the corn ear rot pathogen. Utility Model Content
[0003] This invention provides an inoculation device for the prevention and control of corn ear rot, in order to solve the problems mentioned above.
[0004] To achieve the above objectives, the present invention adopts the following technical solution:
[0005] An inoculation device for the prevention and control of corn ear rot includes an injection gun, one end of which is equipped with a nozzle, the other end of which is equipped with a drive motor, and a handle at the bottom of the injection gun. A solvent tank is detachably connected to the top of the injection gun, and multiple electric push rods are fixedly and horizontally arranged on the side of the injection gun. The piston rods of the electric push rods are all fixedly connected to positioning plates, and the positioning plates are arranged facing the nozzle.
[0006] Furthermore, the side of the injection gun is fixedly provided with multiple mounting brackets, and the electric push rods are all detachably connected to the mounting brackets.
[0007] Furthermore, the piston rod of the electric push rod is connected to a connecting plate, and the positioning plate and the connecting plate are vertically fixedly connected.
[0008] Furthermore, a perforation is provided at the position where the positioning plate and the gun head are directly opposite each other, and elastic straps are also fixed on the positioning plate on both the top and bottom sides of the perforation, with the elastic straps located on the side closer to the gun head.
[0009] Furthermore, the nozzle is provided with multiple injection holes evenly distributed at the liquid outlet.
[0010] This utility model has the following beneficial effects:
[0011] This invention provides an inoculation device for the prevention and control of corn ear rot, mainly comprising an injection gun, a solvent tank, an electric push rod, and a positioning plate. The positioning plate is placed on one side of the corn ear, and the electric push rod drives the retracting positioning plate to pull the corn ear into contact with the injection gun head, thus inserting the gun head into the corn ear. The injection gun is then activated to evenly inject the spore suspension from the solvent tank into the corn ear through the gun head, completing the inoculation process. Alternatively, the operator can open the elastic band and insert the corn ear inside to limit its position, facilitating subsequent injection. The entire inoculation process effectively achieves rapid and accurate inoculation, while also greatly reducing the risk of accidental hand injury to the operator during injection. This significantly ensures the overall efficiency of corn ear inoculation and solves the problem that current inoculation devices for controlling corn ear rot pathogens are often poorly designed, resulting in time-consuming, labor-intensive, and unsafe inoculation processes, ultimately affecting injection accuracy and efficiency.
[0012] In this invention, the tip of the syringe is provided with a dispersive injection hole, through which the spore suspension can be dispersed and injected into the corn ear, effectively ensuring the uniformity of the spore suspension distribution and improving the inoculation effect. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0014] Figure 2 This is a side view of the overall structure of this utility model.
[0015] Figure 3 This is a schematic diagram of the overall structure of the mounting bracket of this utility model.
[0016] The meanings of the reference numerals in the attached figures are as follows:
[0017] 1. Injection gun; 2. Gun head; 3. Solvent tank; 4. Mounting bracket; 5. Electric push rod; 6. Connecting plate; 7. Elastic strap; 8. Positioning plate; 9. Perforation; 10. Injection port; 11. Handle; 12. Drive motor. Detailed Implementation
[0018] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.
[0019] like Figure 1-3As shown, an inoculation device for the prevention and control of corn ear rot includes an injection gun 1, one end of which is provided with a gun head 2, the other end of which is provided with a drive motor 12, and the bottom of the injection gun 1 is provided with a handle 11. The top of the injection gun 1 is threadedly connected to a solvent tank 3, and a set of electric push rods 5 are fixedly and horizontally electrically connected to the side of the injection gun 1. The piston rods of the electric push rods 5 are all fixedly connected to positioning plates 8, and the positioning plates 8 and the gun head 2 are arranged facing each other.
[0020] A set of mounting brackets 4 are fixedly provided on the side of the injection gun 1, and all the electric push rods 5 are bolted to the mounting brackets 4.
[0021] The piston rod of the electric push rod 5 is connected to the connecting plate 6, and the positioning plate 8 and the connecting plate 6 are vertically fixedly connected. The positioning plate 8 is arc-shaped.
[0022] A perforation 9 is provided at the position where the positioning plate 8 and the gun head 2 are directly opposite each other. Elastic straps 7 are also fixed on the positioning plate 8 on both the top and bottom sides of the perforation 9, and the elastic straps 7 are located on the side closer to the gun head 2.
[0023] Multiple injection holes 10 are evenly distributed at the liquid outlet of the nozzle 2.
[0024] In practical application, the various components of the device are pre-assembled according to the diagram. Then, the operator adds the spore suspension to the solvent tank 3 and screws it onto the injection gun 1. The operator then holds the injection gun 1 and places the positioning plate 8 on one side of the corn cob. The electric push rod 5 is then activated, causing the positioning plate 8 to retract. The retracted positioning plate 8 pulls the corn cob into contact with the injection head 2, thus inserting the injection head 2 into the corn cob. At this point, pressing the control button activates the injection gun 1, injecting the spore suspension from the solvent tank 3 evenly into the corn cob through the injection hole 10 of the injection head 2. This completes the inoculation process. Furthermore, for uninoculated corn ears, the operator can open the elastic straps 7 and insert the corn ears into the gaps created by the open straps 7, thus fixing and limiting the corn ears and facilitating subsequent injection. Using this injection method, rapid, accurate, and quantitatively controllable inoculation of corn ears can be effectively achieved. It also greatly reduces the risk of hand injuries to operators during the injection process, significantly improving the efficiency of the inoculation process for controlling corn ear rot pathogens. Therefore, this device has excellent practicality.
Claims
1. An inoculation device for controlling corn ear rot, comprising an injection gun (1), one end of which is provided with a nozzle (2), the other end of which is provided with a drive motor (12), and the bottom of which is provided with a handle (11), characterized in that: The top of the injection gun (1) is detachably connected to a solvent tank (3), and the side of the injection gun (1) is fixedly and horizontally provided with multiple electric push rods (5). The piston rods of the electric push rods (5) are all fixedly connected to a positioning plate (8), and the positioning plate (8) and the gun head (2) are arranged facing each other.
2. The inoculation device for the prevention of corn ear rot according to claim 1, characterized in that: The side of the injection gun (1) is fixedly provided with multiple mounting brackets (4), and the electric push rods (5) are all detachably connected to the mounting brackets (4).
3. The inoculation device for the prevention of corn ear rot according to claim 2, characterized in that: The piston rod of the electric push rod (5) is connected to the connecting plate (6), and the positioning plate (8) and the connecting plate (6) are vertically fixedly connected.
4. The inoculation device for the prevention of corn ear rot according to claim 3, characterized in that: A perforation (9) is provided at the position where the positioning plate (8) and the gun head (2) are directly opposite each other. An elastic strap (7) is also fixed on the positioning plate (8) on both the top and bottom sides of the perforation (9), and the elastic strap (7) is located on the side closer to the gun head (2).
5. The inoculation device for the prevention of corn ear rot according to claim 4, characterized in that: The nozzle (2) is also provided with multiple injection holes (10) evenly distributed at the liquid outlet.