A sample dragging device for blood cell analyzer

Abstract

The present invention relates to the technical field of medical and health equipment, in particular to a sample dragging device for a blood cell analyzer, including a transmission device, a guide rail, a grabbing device and a drag chain, and the transmission device includes a mounting plate, a motor, a driving wheel, A transmission belt, a driven wheel and a fixed plate, a motor is arranged on one side of the mounting plate, the motor is connected to a driving wheel, the driving wheel is connected to a driven wheel through a transmission belt, the driven wheel is installed on the fixed plate, and one side of the transmission belt is set There is a guide rail, the guide rail is equipped with a grabbing device, and one side of the guide rail is provided with a drag chain. The invention has the advantages of simple structure, high stroke and position accuracy, sufficient rigidity, can bear large static load and dynamic load, good vibration damping performance, good impact protection performance, stable and reliable operation, reduced assembly complexity, and convenient assembly and maintenance , long service life, easy processing and low cost.

Description

technical field [0001] The invention relates to the technical field of medical and health instruments, in particular to a sample dragging device for a blood cell analyzer. Background technique [0002] Blood cell analyzer is one of the most widely used instruments in hospital clinical examination. With the rapid development of computer technology, blood cell analysis has also changed from three-dimensional to five-dimensional, and from two-dimensional to three-dimensional. The sorting technology uses the same technology as today's most advanced flow cytometers, such as scattered light detection technology, sheath flow technology, laser technology and so on. [0003] The dragging device of the blood analyzer in the existing market is to drive the synchronous pulley and the synchronous belt through the motor to realize the rotation into the linear motion, and the grasping mechanism fixed on the synchronous belt reciprocates back and forth; Bearings are used in conjunction wit...

AI Technical Summary

Problems solved by technology

In medical equipment with a high degree of automation, the guiding accuracy of linear bearings has been difficult to meet the requirements of accurate positioning; the one-way stroke of the dragging device belt of the blood analyzer reaches more than 700mm, the space is narrow, and the guide shaft is long, resulting in two aspects Problems: 1. Insufficient rigidity of the guide shaft leads to reduced guide accuracy

2. The double guide shaft structure has high requirements for assembly, which increases the difficulty of installation and is very troublesome to maintain

[0004] Another disadvantage of the dragging mechanism in the existing market is the protection of the moving cables. Since the moving parts contain motors, the motor power supply and control cables need to move with the grabbing device when dragging the sample, and its cable distribution is messy. , irregular rules, so that the life of the cable is greatly reduced

During the sample conveying process, the grasping device fixed on the conveyor belt needs to realize accurate and reliable grasping function; due to the narrow space and the long reciprocating stroke of the grasping mechanism, the grasping device design on the existing market It is quite complicated, the positioning accuracy is low, the assembly requirements are high, assembly problems and reliability problems are easy to occur, and the maintenance is inconvenient and the cost is high

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