Single-switch two-point type liquid level meter

Abstract

The invention relates to a liquid level meter, in particular to a single-switch two-point type liquid level meter. The liquid level meter comprises a housing, and a sliding block, a microswitch and aspring are arranged in the housing. A pull rope is installed in the spring, wherein one end of the pull rope is connected with the sliding blocks, and the other end of the pull rope passes through thehousing and extends out of the housing. A hollow ball balancing weight and a solid ball balancing weight are sequentially arranged on the pull rope from top to bottom. The core electrical apparatus elements are all arranged in the housing, do not make contact with liquid, and can adapt to various environments from pure water to acid-base concentrated liquid or other corrosive liquid and the like;the number of the liquid level meters does not need to be increased, the switching point positions of the liquid level meter do not need to be increased, and the signal output can be achieved throughone microswitch when the ascending control point and the descending control point are not located on the same liquid level in the liquid level ascending and descending process; the heights of the twoliquid level points are adjusted through the two limiting blocks arranged at the two ends of the hollow ball balancing weight; the liquid level meter is simple in structure, and is convenient to use.

Description

technical field [0001] The invention relates to a liquid level gauge, in particular to a single-switch two-point liquid level gauge. It can be widely used in water and sewage environment, acid and alkali, mud, food and other environments. Background technique [0002] In industrial production, it is often necessary to detect whether the water level is normal to ensure that the production pressure is within the rated range. At present, the commonly used liquid level controller uses a floating ball to drive the connecting rod to move or rotate, so as to realize the fixed-point detection and control of the liquid level. The liquid level in the prior art The controller generally uses an inductive floating ball sensor. When the water level changes, the silicon rod connected to the floating ball moves in the inductance coil, which causes the inductance at both ends of the inductance coil to change, and the changed inductance is sent to the two The secondary instrument, when the s...

AI Technical Summary

Problems solved by technology

However, installing two liquid level gauges in one place will not only increase the cost of use, but also may cause the rope to be entangled during use, resulting in failure to work and affecting use

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