Plant root growth-promoting bacterium injection device

By designing soil expansion components and air jet anti-clogging components, the soil clogging problem of the plant root growth-promoting bacteria injection device was solved, enabling smooth discharge of bacterial solution and improving operational efficiency, while reducing the risk of root damage.

CN224267503UActive Publication Date: 2026-05-26BEIJING UNIV OF AGRI
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Patent Information

Application Number
CN202521440495.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-07-10
Publication Date
2026-05-26
Estimated Expiration
2035-07-10

AI Technical Summary

Technical Problem

Existing plant root growth promoter injection devices are prone to clogging by soil particles during injection, which hinders the discharge of the bacterial solution and requires frequent manual unblocking, reducing work efficiency and increasing the risk of root damage.

Method used

The system employs a soil expansion component and an air jet anti-clogging component. The soil expansion component controls the connecting plate to expand the soil voids through an adjustment mechanism, while the air jet anti-clogging component uses airflow to clear blockages, preventing soil particles from entering the pipe cavity and ensuring smooth discharge of the bacterial solution.

Benefits of technology

It effectively avoids soil blockage, improves injection continuity, reduces the frequency of manual unblocking, lowers the risk of root damage, and improves operational efficiency.

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Abstract

The utility model discloses a plant root system growth-promoting bacterium injection device, and relates to the technical field of plant root system growth-promoting bacterium injection. The soil expanding device comprises a pipe body, a soil expanding assembly and an air injection anti-blocking assembly, the bottom of the pipe body is communicated with an injection head, a piston is arranged in an inner cavity of the pipe body, the top of the piston is communicated with a pressing pipe, the top of the pressing pipe penetrates to the outer side of the pipe body, the soil expanding assembly comprises a control shell, and the front side of the control shell is fixedly connected with the pipe body. Through the soil expanding assembly, when the device is inserted into soil, the adjusting mechanism controls the connecting plate to move, so that the soil expanding shell is expanded outwards, soil around the injection head is pushed away, a gap is formed, and soil particles are prevented from being reversely squeezed into a pipe cavity to form a hard blockage, so that the risk that bacterial liquid discharge is blocked during injection is reduced, frequent manual dredging is not needed, and the operation is simple and convenient. In a non-use state, the soil expanding shell is kept closed, and the soil expanding shell is used for protecting the injection head.
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