Fixing device for composite rubber hose

The utility model provides a fixing device for a composite rubber hose, the composite rubber hose comprises a hose and a plurality of steel rings, the outer side of the hose is provided with protruding parts which are uniformly arranged at intervals and protrude outwards, the steel rings are respectively and correspondingly arranged on the inner sides of the protruding parts, the fixing device comprises a plurality of parts which can be spliced, a sealing gasket and a fastener, fixing parts are arranged on the two edges of each part, the sealing gasket is arranged between every two adjacent fixing parts, every two adjacent fixing parts and the sealing gasket are fixed through fasteners, a plurality of clamping pieces protruding towards the inner side are arranged on the inner side of each part, and the parts are spliced through the fasteners to form a cylinder matched with a hose. The clamping pieces corresponding to the positions are spliced to form a clamping ring, and the end face of the clamping ring is a