Full-automatic biochemical analyzer liquid-transferring arm combined device

Abstract

The invention relates to a full-automation biochemical analyzer liquor relief arm combination device, which is characterized in that: the device consists of a liquor relief arm and a liquor relief arm rotary disc; the liquor relief arm is embedded at the upper end of the liquor relief arm rotary disc, and comprises a linear motor; a lifting loop bar is arranged on the axis of the linear motor; a cover shell is fixed at the top end of a liquor relief arm holder; a liquor relief lower arm is connected with the cover shell; a silicone tube is arranged inside the liquor relief lower arm with the top end provided with a needle wiper; a liquor relief upper arm is arranged at the top end of the lifting loop bar; a loading needle is arranged at the top end of the liquor relief upper arm, and the lower end of the loading needle passes through the needle wiper; a sleeve pipe is connected with the liquor relief upper arm; a plastic capillary tube is arranged inside the sleeve pipe with the upper end connected with the loading needle; a mounting bottom plate of the liquor relief arm rotary disc is arranged at the upper end of a bearing pedestal; a rotary shaft sleeve is arranged at the upper end of the mounting bottom plate; and a step motor is connected with the rotary shaft sleeve. The full-automation biochemical analyzer liquor relief arm combination device has the advantages that: the device has simple and compact structure, high positioning precision and furthest reduced kinematic error, and can save testing time.

Description

technical field [0001] The invention relates to a pipetting arm combination device of a fully automatic biochemical analyzer, in particular to a pipetting arm which can be used for pipetting reagents and samples in biochemical analysis instruments for medical clinical examination, and belongs to the technical field of fully automatic biochemical analyzers. Background technique [0002] At present, in the medical clinical examination, the pipetting arm device of the automatic biochemical analyzer has the following problems: [0003] 1. The needle washing device is separated from the pipetting arm, and the needle washing action must be moved after each suction, which makes it impossible to continuously perform inspection actions and waste time; [0004] 2. The screw device that moves up and down is not in the same axis as the rotating device, causing problems in the force, making it easy to shake and move inaccurately during movement; [0005] 3. The pipetting arm and the tur...

AI Technical Summary

Problems solved by technology

[0003] 1. The needle washing device is separated from the pipetting arm, and the needle washing action must be moved after each suction, which makes it impossible to continuously perform inspection actions and waste time;

[0004] 2. The screw device that moves up and down is not in the same axis as the rotating device, causing problems in the force, making it easy to shake and move inaccurately during movement;

[0005] 3. The pipetting arm and the turntable are not in a nested structure, the installation is complicated, it is not conducive to production and maintenance, and it is easy to cause positioning errors

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