A long cowpea biocontrol agent injection device
By using a modularly designed long bean biocontrol agent injection device, combined with an electromagnetic flowmeter and remote control, lightweight operation and precise injection are achieved, solving the problem that existing application tools cannot meet the requirements of rhizosphere application and improving work efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XIANGYANG ACADEMY OF AGRICULTURAL SCIENCES
- Filing Date
- 2025-06-30
- Publication Date
- 2026-06-12
Smart Images

Figure CN224343885U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of agricultural equipment technology, specifically to a long bean biocontrol agent injection device. Background Technology
[0002] Long beans are one of the most widely cultivated high-quality protein vegetables in my country, accounting for about one-fifth of the world's total cultivation area. With the industrialization and large-scale development of long bean cultivation, most plots have been planted continuously for many years, leading to a gradual increase in soil-borne diseases. Currently, biological control technology is considered the safest pest and disease control measure and is therefore widely used in agricultural production systems worldwide. Biological control refers to the strategy of using antagonistic microorganisms and their preparations to kill or inhibit pathogens. In other words, it involves controlling diseases through the use of microbial agents. Data shows that in long bean cultivation, the control of soil-borne diseases highly depends on the precise rhizosphere application of biocontrol agents. Since soil-borne pathogens often lurk underground, injection of the agent can directly reach the pathogen's habitat, overcoming the limitations of traditional surface application which has difficulty penetrating the soil.
[0003] Traditional electric sprayers atomize pesticides using a booster pump and spray them onto the ground or leaves. However, their design principle makes them unsuitable for root zone application. While existing injection devices can be inserted into the soil, they are bulky, difficult to maneuver in densely packed areas, and take a long time to align the nozzle with the plant roots. They cannot balance lightweight design with precise dosing, resulting in low work efficiency. Therefore, there is an urgent need to design a biocontrol agent spraying device for cowpeas to solve the above technical problems. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model provides a cowpea biocontrol agent injection device to solve the problem that current application tools are not suitable.
[0005] This utility model discloses an injection device for a cowpea biocontrol agent, comprising a medicine box, a discharge pipe, an air pump, a hollow rod, and a buffer tube. The medicine box has an integrally formed partition dividing it into a storage chamber and a control chamber. The discharge pipe is fixedly connected between the storage chamber and the control chamber. One end of the discharge pipe passes through the partition and communicates with the storage chamber, while the other end passes through the bottom of the medicine box and is fixedly connected to a first pipe connector. An electromagnetic flowmeter and a solenoid valve are sequentially installed on the surface of the discharge pipe from top to bottom. The output end passes through the bottom of the medicine box and is fixedly connected to a second pipe connector. One end of the hollow rod is fixedly connected to a third pipe connector. A first connecting hose is detachably fixed between the first and third pipe connectors. One end of the buffer tube is fixedly connected to the other end of the hollow rod. A puncture part is detachably installed on the other end of the buffer tube. A fourth pipe connector is fixedly connected to the side of the buffer tube away from the puncture part. A second connecting hose is detachably fixed between the fourth and second pipe connectors.
[0006] As a further improvement of this utility model, a power supply is provided in the center of the medicine box, and a controller is installed on the front of the medicine box. The power supply is electrically connected to the electromagnetic flow meter, the electromagnetic valve, the controller and the air pump respectively.
[0007] As a further improvement of this utility model, the controller is electrically connected to the electromagnetic flow meter, the electromagnetic valve and the air pump respectively, and a remote control is fixedly connected to the surface of the hollow rod. The remote control is electrically connected to the controller and includes a first control button and a second control button.
[0008] As a further improvement of this utility model, the puncture part includes a screw cap, an injection needle is fixedly connected to the center of the screw cap, the screw cap is threaded to the end of the buffer tube away from the hollow rod, and the injection needle communicates with the interior of the buffer tube.
[0009] As a further improvement of this utility model, an anti-slip sleeve is fixedly connected to the surface of the hollow rod and the side near the third pipe joint.
[0010] As a further improvement of this utility model, the upper surface of the medicine box is fixedly connected to a feed pipe that communicates with the medicine storage chamber, and the top of the feed pipe is threaded with a sealing cap.
[0011] As a further improvement of this utility model, a guide plate is fixedly connected to the inner wall of the medicine storage chamber near the bottom, and the guide plate is inclined towards the discharge pipe.
[0012] As a further improvement of this utility model, a carrying strap is provided on the back of the medicine box.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0014] The hollow rod and buffer tube of this utility model have a separate structure. Combined with the carrying strap of the medicine box, the operator can carry the medicine box and hold the rod with one hand to move flexibly between field scaffolding materials, which meets the requirements of lightweight design. Through the setting of electromagnetic flow meter, solenoid valve, controller and air pump, and with the first control button and second control button on the remote control, the operator can accurately control the injection volume of each injection by operating the remote control. The injection needle injects a certain amount of fungicide directly into the rhizosphere soil under air pressure, which can effectively control the error value of the injection volume and achieve the purpose of precise injection. Attached Figure Description
[0015] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:
[0016] Figure 1This is a schematic diagram of the overall three-dimensional structure of the present invention;
[0017] Figure 2 This is a schematic diagram of the overall front sectional structure of this utility model;
[0018] Figure 3 This is a schematic diagram of the overall back structure of this utility model.
[0019] In the diagram: 1. Medicine box; 101. Feed pipe; 102. Sealing cap; 103. Guide plate; 104. Shoulder strap; 2. Medicine storage chamber; 3. Control room; 4. Discharge pipe; 5. Electromagnetic flow meter; 6. Solenoid valve; 7. First pipe connector; 8. Power supply; 9. Controller; 10. Air pump; 11. Second pipe connector; 12. First connecting hose; 13. Second connecting hose; 14. Hollow rod; 15. Third pipe connector; 16. Check valve; 17. Buffer tube; 18. Fourth pipe connector; 19. Screw cap; 20. Injection needle; 21. Remote control; 22. Anti-slip sleeve. Detailed Implementation
[0020] The following illustrations will reveal several embodiments of the present invention. For clarity, many physical details will be described in the following description. However, it should be understood that these physical details should not be used to limit the present invention. That is, in some embodiments of the present invention, these physical details are not essential. Furthermore, for the sake of simplicity, some conventional structures and components will be shown in a simple schematic manner in the illustrations.
[0021] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.
[0022] In the description of this technology, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set up," "install," "connect," and "link" 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 technology based on the specific circumstances.
[0023] Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.
[0024] Please see Figure 1-3 This utility model discloses a cowpea biocontrol agent injection device, comprising a medicine box 1, a discharge pipe 4, an air pump 10, a hollow rod 14, and a buffer tube 17. A shoulder strap 104 is provided on the back of the medicine box 1 for easy carrying by personnel. An integrally formed partition divides the medicine box 1 into a storage chamber 2 and a control chamber 3. The discharge pipe 4 is fixedly connected between the storage chamber 2 and the control chamber 3. One end of the discharge pipe 4 passes through the partition and communicates with the storage chamber 2, while the other end passes through the bottom of the medicine box 1 and is fixedly connected to a first pipe connector 7. An electromagnetic flow meter 5 and a solenoid valve 6 are sequentially installed on the surface of the discharge pipe 4 from top to bottom. The output end passes through the bottom of the medicine box 1 and is fixedly connected to a second... The first connector 11 is fixedly connected to one end of the hollow rod 14 with a third connector 15. A first connecting hose 12 is detachably fixed between the first connector 7 and the third connector 15. One end of the buffer tube 17 is fixedly connected to the other end of the hollow rod 14. A puncture part is detachably installed at the other end of the buffer tube 17. The puncture part includes a cap 19. An injection needle 20 is fixedly connected to the center of the cap 19. The cap 19 is threaded to the end of the buffer tube 17 away from the hollow rod 14. The injection needle 20 is connected to the interior of the buffer tube 17. A fourth connector 18 is fixedly connected to the side of the buffer tube 17 away from the puncture part. A second connecting hose 13 is detachably fixed between the fourth connector 18 and the second connector 11.
[0025] In this embodiment, a power supply 8 is provided in the center of the medicine box 1. The power supply 8 is a rechargeable battery, and its charging port is located on the back of the medicine box 1. A controller 9 is installed on the front of the medicine box 1. The power supply 8 is electrically connected to the electromagnetic flow meter 5, the solenoid valve 6, the controller 9, and the air pump 10. The controller 9 is also electrically connected to the electromagnetic flow meter 5, the solenoid valve 6, and the air pump 10. A remote control 21 is fixedly connected to the surface of the hollow rod 14. The remote control 21 is electrically connected to the controller 9. The remote control 21 includes a first control button and a second control button. The first control button controls the opening or closing of the solenoid valve 6 through the controller 9, and the second control button controls the opening or closing of the air pump 10 through the controller 9.
[0026] Among them, the air pump 10 is preferably an F16H high-pressure micro piston air pump, the controller 9 is a PLC controller, the solenoid valve 6 is preferably an SMC lightweight solenoid valve, and the electromagnetic flow meter 5 is preferably a MEACON compact electromagnetic flow meter.
[0027] It should be noted that the power supply 8 is connected to the power supply port of the controller 9 by wire soldering or terminal block. The output end of the controller 9 is connected to the RS485 communication interface of the electromagnetic flowmeter 5, the coil terminal of the solenoid valve 6, and the motor drive end of the air pump 10 through three cables to achieve electrical connection. The built-in wireless transmitter of the remote controller 21 establishes communication with the receiving module of the controller 9. The first control button triggers the controller 9 to send an electrical signal to the control end of the solenoid valve 6, and the second control button sends an electrical signal to the air pump 10.
[0028] The technology of achieving precise quantitative output of liquid by coordinating the controller 9, electromagnetic flowmeter 5, and solenoid valve 6 is recognized as a mature existing technology and should be known by those skilled in the art.
[0029] This device achieves synergistic optimization of lightweight operation and quantitative control through modular design, and its workflow can be divided into three key stages:
[0030] First, when the staff carries the medicine box 1 and moves, the hollow rod 14 is connected to the medicine box 1 through the first connecting hose 12, which makes it easy for the staff to turn freely on the site. The buffer tube 17 and the puncture part set at the end of the hollow rod 14 allow the staff to operate with one hand to quickly align the injection needle 20 in the puncture part with the plant root and insert it, so that the needle buckle of the injection needle 20 is directly aligned with the plant root system.
[0031] Secondly, the remote control 21 triggers the solenoid valve 6 to link with the air pump 10. The bacterial agent in the storage chamber 2 is collected by the guide plate 103 to the discharge pipe 4. After being measured in real time by the electromagnetic flow meter 5, it flows into the interior of the buffer pipe 17 through the first connecting hose 12 and the hollow pipe.
[0032] Finally, the microbial agent is pressurized by the air pump 10, so that the microbial agent is directly injected into the rhizosphere soil under air pressure. In addition, the air pressure generated by the air pump 10 can also wash away the soil in the injection needle 20 to prevent blockage.
[0033] In this embodiment, an anti-slip sleeve 22 is fixedly connected to the surface of the hollow rod 14 and the side near the third pipe joint 15. The anti-slip sleeve 22 makes it easier for the staff to hold the hollow rod 14 to perform piercing and pulling operations.
[0034] In this embodiment, a feed pipe 101 communicating with the storage chamber 2 is fixedly connected to the upper surface of the medicine box 1. A sealing cap 102 is threadedly connected to the top of the feed pipe 101. The feed pipe 101 is designed to facilitate the addition of microbial agents to the medicine box 1 by the operator, while the sealing cap 102 prevents the microbial agents from leaking out.
[0035] In some other embodiments, a guide plate 103 is fixedly connected to the inner wall of the storage chamber 2 near the bottom. The guide plate 103 is inclined toward the discharge pipe 4. The guide plate 103 allows the bacterial agent in the storage chamber 2 to flow automatically toward the discharge pipe 4, preventing waste of the bacterial agent.
[0036] In some other embodiments, a one-way valve 16 is also provided at the connection between the hollow tube and the buffer tube 17. The one-way valve 16 can prevent gas from entering the hollow rod 14.
[0037] The above description is merely an embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.
Claims
1. A biocontrol agent injection device for cowpea, characterized in that, include: Medicine box (1), the medicine box (1) has an integrally formed partition inside, the partition divides the medicine box (1) into a medicine storage room (2) and a control room (3); The discharge pipe (4) is fixedly connected between the medicine storage chamber (2) and the control chamber (3). One end of the discharge pipe (4) passes through the partition and communicates with the medicine storage chamber (2). The other end of the discharge pipe (4) passes through the bottom of the medicine box (1) and is fixedly connected with the first pipe joint (7). The surface of the discharge pipe (4) is equipped with an electromagnetic flow meter (5) and a solenoid valve (6) from top to bottom. Air pump (10), the air pump (10) is installed in the control room (3) and on the side away from the discharge pipe (4), the output end of the air pump (10) passes through the bottom of the medicine box (1) and is fixedly connected to a second pipe joint (11). Hollow rod (14), one end of which is fixedly connected to a third pipe joint (15), and a first connecting hose (12) is detachably fixed between the first pipe joint (7) and the third pipe joint (15). A buffer tube (17) is fixedly connected at one end to the other end of a hollow rod (14). A puncture part is detachably installed at the other end of the buffer tube (17). A fourth pipe connector (18) is fixedly connected at the side of the buffer tube (17) away from the puncture part. A second connecting hose (13) is detachably fixed between the fourth pipe connector (18) and the second pipe connector (11).
2. The long bean biocontrol agent injection device according to claim 1, characterized in that, A power supply (8) is located in the center of the medicine box (1), and a controller (9) is installed on the front of the medicine box (1). The power supply (8) is electrically connected to the electromagnetic flow meter (5), the solenoid valve (6), the controller (9), and the air pump (10).
3. The long bean biocontrol agent injection device according to claim 2, characterized in that, The controller (9) is electrically connected to the electromagnetic flowmeter (5), the solenoid valve (6) and the air pump (10) respectively. A remote control (21) is fixedly connected to the surface of the hollow rod (14). The remote control (21) is electrically connected to the controller (9). The remote control (21) includes a first control button and a second control button.
4. The long bean biocontrol agent injection device according to claim 1, characterized in that, The puncture section includes a cap (19), and an injection needle (20) is fixedly connected to the center of the cap (19). The cap (19) is threaded to the end of the buffer tube (17) away from the hollow rod (14). The injection needle (20) communicates with the interior of the buffer tube (17).
5. The long bean biocontrol agent injection device according to claim 1, characterized in that, An anti-slip sleeve (22) is fixedly connected to the surface of the hollow rod (14) and the side near the third pipe joint (15).
6. The long bean biocontrol agent injection device according to claim 1, characterized in that, The upper surface of the medicine box (1) is fixedly connected to a feed pipe (101) that communicates with the medicine storage chamber (2), and the top of the feed pipe (101) is threaded with a sealing cap (102).
7. The long bean biocontrol agent injection device according to claim 1, characterized in that, A guide plate (103) is fixedly connected to the inner wall of the storage chamber (2) near the bottom, and the guide plate (103) is inclined toward the discharge pipe (4).
8. The long bean biocontrol agent injection device according to claim 1, characterized in that, The back of the medicine box (1) is provided with a shoulder strap (104).