Integrated installation device for toilet drain pipe

The utility model discloses a toilet drain pipe integrated installation device, which relates to the technical field of house decoration and comprises a first assembly frame and a second assembly frame, a bolt is inserted into one side of the first assembly frame and one side of the second assembly frame, a fixing piece is inserted into one end of the bolt, and a nut is in threaded connection with one end of the bolt. The first c-shaped channel steel and the second c-shaped channel steel are installed on the inner side of the assembly frame, the positions of the first c-shaped channel steel and the second c-shaped channel steel are adjusted, and the sleeve mold with the pulleys is placed on the inner side of the assembly frame to clamp the limiting blocks at the proper positions. The drainage pipes which are cut in a unified mode can be directly installed and integrated into a whole, the drainage pipes can be directly and fixedly installed in a one-time climbing mode, the installation unification error is sma