Automatic volume control device

By designing an automatic volumetric accelerator and utilizing a peristaltic pump and infrared signal control, the problems of large size and easy cross-contamination of traditional equipment have been solved. This has enabled precise liquid volumetric accelerator control, simplified operation, reduced costs, and improved experimental accuracy.

CN224317105UActive Publication Date: 2026-06-02SCI RES ACADEMY OF GUANGXI ENVIRONMENTAL PROTECTION
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-08-07
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

Traditional labeling instruments and pipetting workstations are bulky, expensive, prone to cross-contamination, complex to operate, increase labor and time costs, and long tubing leads to reagent waste and residue, affecting the accuracy of experimental results.

Method used

An automatic volumetric calibrator was designed, which uses a peristaltic pump and infrared signal to control the liquid volume through an infrared signal transmitter and receiver. Combined with an adjustable lead screw and transmission system, it can achieve volume calibration of centrifuge tubes of different diameters, simplifying the operation process.

Benefits of technology

It achieves precise liquid volume determination, reduces reagent waste and cross-contamination, lowers equipment costs, simplifies operating procedures, and improves the reliability of experimental results.

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Abstract

This utility model discloses an automatic volumetric calibrator, including a mounting base and a liquid-adding beaker. A U-shaped support frame is fixedly mounted on the upper end of the mounting base. Vertical limiting grooves are formed through both sides of the upper end of the U-shaped support frame. An adjusting screw is rotatably connected to the center of the vertical limiting groove via a rotating shaft. An H-shaped lifting slider is threaded onto the outer curved surface of the upper end of the adjusting screw. An infrared signal transmitter and an infrared signal receiver are fixedly mounted inside the H-shaped lifting slider. A rotating base is rotatably connected to the bottom of the U-shaped support frame via a rotating shaft. Several tube seats for limiting the volume of centrifuge tubes of different diameters are fixedly mounted on the upper end of the rotating base. This utility model enables the volumetric calibrator to be adjusted while simultaneously adjusting the liquid level and calibrating centrifuge tubes of different diameters.
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