High-safety-factor vehicle-mounted type LNG storage tank supporting frame

The invention provides a high-safety-factor vehicle-mounted type LNG storage tank supporting frame. The high-safety-factor vehicle-mounted type LNG storage tank supporting frame is characterized in that the high-safety-factor vehicle-mounted type LNG storage tank supporting frame comprises reinforcing frames, a double-layer frame, an LNG storage tank, a combustible gas detector, an exhaust port, aprotective cover, a vehicle-mounted box and a buffering cushion; the double-layer frame is mounted in the vehicle-mounted box, the two sides of the lower portion of the double-layer frame are fixed and reinforced through the reinforcing frames, and the LNG storage tank is arranged in the double-layer frame; and the buffering cushion is arranged between the LNG storage tank and the double-layer frame and is in shapes of an upper semicircle and a lower semicircle, the protective cover is arranged at the upper end of the vehicle-mounted box, one side of the vehicle-mounted box is provided with the combustible gas detect