PCCP (prestressed concrete cylinder pipe) bell and spigot pressure testing hole forming device

The utility model discloses a PCCP (prestressed concrete cylinder pipe) bell and spigot pressure testing hole forming device, it contains the steel cylinder, the one end of steel cylinder is provided with the socket steel loop, be provided with outer wall concrete structure layer on the surface of steel cylinder, be provided with inner wall concrete structure layer on the internal surface of steel cylinder and socket steel loop, run through the body wall of socket steel loop is provided with connecting bolt, runs through inner wall concrete structure layer is provided with the plug, connecting bolt inner with be in the same place through threaded connection in the inner of plug, the plug is tubaeform, and its outer end diameter is greater than inner diameter. Connecting bolt's outer end is provided with interior hexagon bayonet socket or interior square bayonet socket. The utility model discloses an use of new interior hexagonal screw and installation procedure's adjustment have been avoided in the follow -up