Liquid level switch device and shield tunneling machine

• Main Authors: DING MENGJUN, WANG YOUZENG, MENG XIANGCHAO, YE LEI, XU JINQIU, LI JIANGHUA, SU ZHIXUE, LIU XINXIN, YUAN HAOHAO, ZHAN CHENFEI, ZHANG WEIQIANG, DONG KE, ZHOU XIAOLEI, WANG JINGJING, ZHONG YU
• Format: Patent
• Language: Chinese; English
• Published: 28.05.2021
• Subjects: EARTH DRILLING; FIXED CONSTRUCTIONS; GALLERIES; LARGE UNDERGROUND CHAMBERS; MEASURING; MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUIDLEVEL; METERING BY VOLUME; MINING; PHYSICS; SHAFTS; TESTING; TUNNELS

The invention relates to a liquid level switch device and a shield tunneling machine, the liquid level switch device used for being installed in an air cushion bin of the shield tunneling machine comprises an insulation base body which is internally provided with two monitoring electrodes at intervals in an insulation mode to achieve liquid level monitoring; the insulating substrate is provided with two wire inlet holes which are not communicated with each other, the two wire inlet holes and the two monitoring electrodes are arranged in a one-to-one correspondence manner, each wire inlet hole is hermetically provided with a corresponding signal cable in a penetrating manner, and the signal cables are conductively connected with the corresponding monitoring electrodes. The two wire inlet holes which are not communicated with each other are arranged on the insulation substrate corresponding to the two monitoring electrodes so that corresponding signal cables can be respectively and hermetically introduced conve