Portable safety belt hook

The utility model discloses a portable safety belt hook, and belongs to the technical field of safety belts. The safety device is composed of a supporting body, a matching body, a first safety assembly, a second safety assembly, a force bearing shaft, a safety rope and a nut, the supporting body and the matching body are connected into a whole through the force bearing shaft and the nut, the safety rope is fixed to the force bearing shaft, and the first safety assembly comprises a safety pin, a first safety spring, a first safety rope and a pressing screw and is vertically installed in the matching body; the first safety spring pushes the safety pin into the supporting body to prevent the matching body from being opened by external force. The second safety assembly comprises two second safety springs, a second safety rope and a plug, the second safety assembly is transversely installed between the supporting body and the matching body, and the second safety springs prevent the matching body from being opened.