Throat hoop is a fastener at the joint of soft and hard pipes. The throat hoop solves the problem of dead angle and liquid and gas leakage when the throat hoop is used for connecting small diameter soft and hard pipes in the prior art. The throat hoop adopts an open inner and outer ring structure and is fastened with bolts. The throat hoop effectively solves the problems of dead angle and liquid and gas leakage when small diameter soft and hard pipes are connected. The structure is simple and easy to make, and the cost is 30% of the original product. The throat hoop is widely used in motor vehicles, petrochemical, pharmaceutical, food, wine making, sewage treatment, purification, dust removal, automobile accessories and other machine accessories.

Throat hoop features: worm friction is small, suitable for high and medium models or anti-corrosion material parts connection. The throat hoop has a wide range of application, anti torsion and pressure resistance, balanced torsion torque, firm locking, tight, and wide range of adjustment. The throat hoop is suitable for fasteners connecting soft and hard pipes over 30mm, with beautiful appearance after assembly.