Biconcave head and tip pipe strap

The utility model discloses a biconcave head and tip pipe strap, it includes two clamp bodies, and the both sides portion of clamp body corresponds to be equipped with and connects the ear, connects the through -hole that has a perfect understanding about being equipped with in the ear, and the bolt passes with two these body couplings of clamp behind the through -hole, all is equipped with the lock arm on two clamp bodies, and the terminal surface of the lock arm that corresponds on two clamp bodies is through breach and bellied to inserting the laminating of formula structure, and the surface of clamp body is equipped with outer convexo -convex muscle, correspond the breach that is equipped with inside concave yield on the lower terminal surface of the lock arm of one of them clamp body both sides, the corresponding arch that suits with gap shape that is equipped with on the lower terminal surface of the lock arm of another clamp body both sides. The utility model discloses can realize the sealing connectio