Liquid level measurer for mortar box or mud box

Abstract

The embodiment of the invention discloses a liquid level measurer for a mortar box or a mud box, which comprises a mounting support, a laser sensor, a signal acquisition unit and an output unit, wherein the mounting support is fixedly connected to the upper part of a box body of the mortar box or the mud box; the laser sensor is fixedly connected to the mounting support, and a laser of the laser sensor is positioned above a cavity of the mortar box or the mud box and is arranged downwards; the signal acquisition unit is connected with the laser sensor and is used for acquiring distance data signals obtained by the laser sensor; and the output unit is connected with the signal acquisition unit and is used for outputting the signals acquired by the signal acquisition unit. Because the adopted laser sensor is not necessary to contact mortar or mud, the liquid level measurer solves the problem that in the prior art, the liquid level measurer generates misreports because an electrode bar is coated with the mortar or the mud to form a conducting state.

Description

technical field [0001] The invention relates to the field of shield machines, in particular to a liquid level measuring device for a mortar box or a mud box. Background technique [0002] At present, when measuring the liquid level in the mortar box and mud box of the shield machine, a liquid level conduction relay, that is, an electrode rod liquid level measuring device, is used. The liquid level measuring device is set in the mortar box or the mud box, and the height of the measuring end of the electrode rod is set. The contact creates different current potentials in the measuring device's circuit, which allows the measurement of whether the mortar or mud in the mortar or mud box has reached the set height. [0003] In practical applications, in order to measure whether the liquid level in the mortar box or mud box is within a reasonable range, multiple electrode rods are often required to measure different liquid levels at different liquid level heights. In order to kee...

AI Technical Summary

Problems solved by technology

During the working process, the bracket and a plurality of electrode rods may be coated with mortar or mud. Since the bracket is connected with a plurality of electrode rods, at this time, the electrode rods will form a The state of electrical conduction, so that the electrode rod liquid level measuring device will generate false alarms when the liquid level is not at the set height, resulting in inaccurate measurement results

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