Safety belt hanging point detection and signal sending device

The utility model relates to a safety belt hanging point detection and signal transmission device, which comprises a liquid container filled with conductive liquid, and the volume of the conductive liquid is smaller than that of the liquid container; the two probes are inserted into the top end of the liquid container and are vertically arranged, the height of the tail ends, located in the liquidcontainer, of the probes is higher than the horizontal plane of the conductive liquid, and fasteners are arranged at the positions, extending out of the liquid container, of the probes; the upper cover is detachably connected to the top of the liquid container; the signal sending assembly comprises a circuit board, a battery, an insulation fixing plate and two springs, and all the assemblies are sequentially fixed in a layered mode through a fixing support and arranged in the upper cover; and the power switch and the indicating lamp are communicated with the circuit board. The safety belt hanging point position detect