Fastening device for binding type large volume high pressure gas cylinder transport vehicle

The utility model relates to the improvement of a fastening device for binding type large volume high pressure gas cylinder transport vehicles. The fastening device is reserved at least two binding steel belts after improved, and also comprises support cushion blocks which are arranged between each layer of high pressure gas cylinders, front and back end port supporting plates which support the front and the back end ports of each high pressure gas cylinder, wherein the supporting plates are fixed on front and back transverse support frames which are fixedly connected with vertical auxiliary beams of a chassis; the support cushion blocks are arranged between the high pressure gas cylinders or between the high pressure gas cylinders and the vertical auxiliary beams of the chassis; the connection of the supporting plates and the front and the back transverse auxiliary beams is realized by front and back stable draw rods which are symmetrically arranged. The design of the utility model adopts second class chassis structure which is the integration structure of a driving cabin and a bearing chassis, a rigidity bearing device which is composed of the vertical auxiliary beams and the transversal auxiliary beams is fixed on a bearing crossbeam of the chassis and is provided with a rigidity accessory box in matching, and the vertical auxiliary beams and the transversal auxiliary beams are connected into an integral body.