Plate washer waste liquid discharge device

Abstract

The invention discloses a waste liquid discharge device for a plate washer. The device comprises a sealed waste liquid bottle, a waste liquid feeding tube, a waste liquid discharge tube and a pressure tube group which are communicated with the waste liquid bottle and a liquid level sensor in the waste liquid bottle. The pressure tube group comprises a common tube, a negative-pressure tube providing negative pressure, a positive-pressure tube providing positive pressure and a first solenoid valve which is connected between the positive-pressure tube and the negative-pressure tube. One end of the common tube is connected with the waste liquid bottle, and the other end of the common tube is connected with one ends of the negative-pressure tube and the positive-pressure tube; and the other ends of the negative-pressure tube and the positive-pressure tube are connected with corresponding air tubes respectively. When the liquid level sensor senses that the liquid level in the waste liquid bottle reaches a preset value, an electric control board of the plate washer controls the solenoid valves to communicate the positive-pressure tube with the waste liquid discharge tube, so that the waste liquid is discharged outwards automatically. Besides, a siphon principle can be further uses as required, so that the waste liquid in the wasted liquid bottle can be discharged through a manual mode. The device is simple in structure and capable of facilitating user usage.

Description

technical field [0001] The invention relates to the technical field of enzyme label washing machines, in particular to a waste liquid discharge device of the washing machine. Background technique [0002] In the enzyme-linked immunosorbent assay (enzymelinkedimmunosorbentassay, ELISA) experiment, an automatic enzyme-labeled plate washer (hereinafter referred to as the plate washer) is usually used to clean the samples and reagents that have not participated in the reaction in the enzyme-linked immunosorbent well plate. The plate washer is usually composed of power supply, control circuit, pressure pump (vacuum pump), pipeline, solenoid valve, mechanical system, cleaning head, carrier plate, tray, washing liquid bottle, waste liquid bottle and other components. Among them, the pressure pump is responsible for Positive pressure is generated in the washing liquid bottle, and negative pressure is generated in the waste liquid bottle, which is the driving force of the liquid flow...

AI Technical Summary

Problems solved by technology

Since there are many pipelines (negative pressure tubes, waste tubes, sensors, etc.) on the cap of the waste liquid bottle, frequent opening or closing of the cap will make the operation cumbersome and inconvenient for users, and the cap is often opened or closed , its sealing performance may degrade

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