Sebific duct hoop

A rubber hose collar clamp that is particularly applied to aviation pressure fueling filling tie-in comprises a hoop body whose two ends are two hangings projecting outwards that are respectively provided with two connecting holes. To achieve the above-mentioned destination, the rubber hose collar clamp has three pieces of collar clamp bodies that circle a cavity with tube-shaped, the space between the adjacent clamp bodies are connected via screw threads connecting components via the connecting hole, teeth are provided on the inner wall of the collar clamp. The utility model adopts a collar clamp that is formed by three pieces of collar clamps, the clamp force that is exerted on the fuel filling tie-in and the oil-transporting rubber hose is distributed evenly, the teeth on the inner wall is locked with the teeth on the aviation pressure fuel filling tie-in, so the aviation pressure fuel filling tie-in is closely combined with the oil-transporting rubber hose, which avoids the phenomenon of oil-oozing. The utility model does not process screw thread on the collar clamp body, but adopts a hexangular screw female via the inner installation in the collar clamp, when the tooth is damaged, only the hexangular screw female is needed to change, which prolongs the life span of the collar clamp.