Glue injection gun with adjustable single injection amount and injection amount adjusting method

By designing a glue gun with adjustable single injection volume, and utilizing a combination of a quantitative propulsion module and a drive component, the problem of difficult-to-control syringe injection volume was solved, achieving precise adjustment of injection volume and ease of operation, and improving the stability and safety of the injection process.

CN121846428APending Publication Date: 2026-04-14WEIHAI MAIKANG MEDICAL TECH CO LTD
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Patent Information

Application Number
CN202610233180.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-02-27
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

In existing technologies, the injection volume of syringes is difficult to control flexibly, especially in medical applications that require precise control of the injection volume per dose. The operation flexibility of glue guns is insufficient.

Method used

A dispensing gun with adjustable single injection volume was designed. By combining a quantitative propulsion module and a drive component, and by adjusting the distance between the arc surface and the rotation center and adjusting the single rotation angle of the rotating arm, the precise injection volume of the fluid agent can be controlled.

Benefits of technology

It achieves precise control of injection volume, is easy to operate, improves the stability and safety of the injection process, reduces fluid drug dosage changes caused by misoperation, simplifies the mechanical structure, and improves transmission reliability.

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Abstract

The invention discloses a glue injection gun with an adjustable single injection amount and an injection amount adjusting method, and relates to the technical field of injectors. The glue injection gun with the adjustable single injection amount comprises a quantitative propelling module, and the quantitative propelling module comprises a shell, a propelling assembly and a driving assembly; the propelling assembly comprises a push rod and a propelling plate; the driving assembly comprises a first rotating shaft, a first rotating arm and a second rotating arm. The first rotating arm drives the second rotating arm to rotate, the arc-shaped surface of the second rotating arm is matched and clamped with the arc-shaped clamping groove of the propelling plate, and the pushed teeth on the bottom surface of the push rod are matched and engaged with the propelling teeth of the propelling plate, so that the second rotating arm can push the push rod to advance for a specific distance when rotating for a constant angle, and then the piston rod of the injector is pushed to advance for a specific distance; therefore, the single injection amount of the fluid medicament is controlled. Such form is simple in structure and convenient to operate, and a user can conveniently and accurately control the total injection amount of the fluid medicament within a specific time period by recording the number of times of pressing the first cantilever.
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