Patent ID: 11946923
Assignee: QINGDAO UNIVERSITY OF TECHNOLOGY
Field: Measurement (Instruments)
Classification: CPC G  E | IPC E  G

Claim 3:
4. The device for monitoring freezing-thawing damage of an underwater concrete member in situ according to claim 3, wherein a waterproof power supply #2 and a spring set are disposed inside the probe launching box, the waterproof power supply #2 is connected to an electromagnet by using a wireless switch #2, the spring set is connected to a steel plate bracket, an iron block is disposed on a left end of the steel plate bracket, a magnet #1 is disposed on a right end of the steel plate bracket, a hollow conduit is disposed on an end portion of the probe launching box, a magnet #2 is disposed on an inner end of the conduit, a pulley is disposed on an outer end of the conduit, a launching guide rod is disposed in the conduit, a rubber seal ring is disposed between the conduit and the launching guide rod, and a probe is disposed on an end portion of the launching guide rod.