Electric liquid transferring device

Abstract

The invention provides an electric liquid transferring device. The electric liquid transferring device comprises two sliding tables symmetrically arranged on the two opposite sides of a central transverse shaft, wherein at least one electric liquid transferring device is installed on each sliding table; each electric liquid transferring device comprises a loading mechanism and an executing mechanism; each loading mechanism comprises a supporting frame and a first motor; each executing mechanism comprises a rack, a second motor and a liquid transferring assembly; the liquid transferring assemblies are positioned at the central transverse shaft; the second motors are positioned on the outer side of the central transverse shaft; the first motors are positioned on the outer side of a supporting point; and when the electric liquid transferring devices on the two sliding tables are gathered side by side, the liquid transferring assemblies of the electric liquid transferring devices on the two sliding tables are sequentially and alternately arranged at the central transverse shaft along the central transverse shaft. On the premise that the requirement for the center distance of a vessel foundation is met, the common motors are adopted, the shortest distance between the reciprocating motion axis of the executing mechanisms and the vertical line between the supporting points is achieved, and harmful overturning moment and fatigue deformation generated when the executing mechanisms are downwards connected with liquid transferring heads in a frequently-pressed mode along the axes of the executing mechanisms are reduced.

Description

technical field [0001] The invention relates to a sample adding device, in particular to an electric pipetting device. Background technique [0002] In the detection work in the fields of medicine, food, biology, etc., it is necessary to carry out a lot of pre-processing work on biological materials and samples (usually in liquid state). The high-throughput automated biological sample automatic processing system can be completed in batches in a short time Pipetting, adding samples, mixing and other operations, as well as the preparation of templates for a large number of biological samples. [0003] The electric pipette is the core technical unit in the automatic processing system of biological samples. When electric pipettes are used in combination, because the working objects are various and standardized vessels, the distance between the movement axis of any pipette and the movement axis of the side pipette must meet the basic center distance of the conventional vessel. ...

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to provide an electric liquid pipetting device, which can not only solve the problem of high price in the existing technology of using small-diameter high-speed motors, but also solve the problem of using a small-diameter high-speed motor on the premise of meeting the requirements of the center distance of the container foundation. There is a large distance between the reciprocating axis of the pipetting actuator and the vertical line of the mechanism fulcrum in the conventional motor, and the large harmful overturning moment and fatigue deformation caused by the frequent press-fit connection between the pipetting actuator and the pipetting head along the axis

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