Liquid level control device

Abstract

The invention discloses a liquid level control device, and belongs to the technical field of liquid level control. The liquid level control device comprises a container assembly, a detection assembly,an alarm assembly and a lifting assembly, wherein the container assembly comprises a liquid supply container and a liquid discharge container, the detection assembly comprises a first weight sensor and a second weight sensor which are respectively arranged below the liquid supply container and the liquid discharge container and are respectively used for detecting the solution amounts in the liquid supply container and the liquid discharge container, the alarm assembly comprises a liquid shortage alarm electrically connected with the first weight sensor and a liquid overflow alarm electricallyconnected with the second weight sensor, and the lifting assembly comprises a liquid supply pipe extending into the liquid supply container, a liquid discharge pipe extending into the liquid discharge container, and a driving unit used for driving the liquid supply pipe and the liquid discharge pipe to move. According to the liquid level control device, the solution amount in the container can bedetected in real time, the pollution-free detection is achieved, the detection stability and reliability are improved, and the operation convenience is improved.

Description

technical field [0001] The invention relates to the technical field of liquid level control, in particular to a liquid level control device. Background technique [0002] Many equipment and instruments need to be cleaned during use and produce waste liquid. Usually, it is necessary to equip specific cleaning liquid containers and waste liquid containers to provide cleaning liquid and recover waste liquid. When in use, the user needs to be reminded to replace when the cleaning liquid is insufficient, and the user needs to be reminded to clean up when the waste liquid is full. At present, the methods of detecting liquid shortage and overflow include: the first is to use the principle of a connecting device to detect the amount of solution through a connecting liquid column. Although this method can be directly read, it is poor in automation and needs to be observed all the time, which is inconvenient to operate; the second is to use Floating ball detection, the floating ball ...

AI Technical Summary

Problems solved by technology

At present, the methods of detecting liquid shortage and overflow include: the first is to use the principle of a connecting device to detect the amount of solution through a connecting liquid column. Although this method can be directly read, it is poor in automation and needs to be observed all the time, which is inconvenient to operate; the second is to use Floating ball detection, the floating ball detection needs to be in contact with the liquid, there is a risk of cross-contamination when testing multiple times or when testing multiple solutions; the third is to use the inductance-capacitance ratio for detection, although this method does not contact with liquid , but changes in the surrounding environment will affect the inductance and capacitance values, and the detection stability is poor

[0003] At the same time, the cleaning liquid container and the waste liquid container need to be connected with pipelines during suction and discharge. When the cleaning liquid container and waste liquid container need to be replaced or cleaned, the suction and discharge pipeline is generally removed manually at present. , and then manually insert the suction and discharge pipes, which is cumbersome and inconvenient to operate

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