Patent attributes
A pipework has an outer pipe, an inner pipe a position hole, a pressing element and a bolt. The outer pipe has an outer wall. The inner pipe is slidably mounted in the outer pipe. The position hole is formed through the outer wall of the outer pipe and has an inner thread and at least one locating slot. The pressing element is mounted in the position hole and has a mounting recess and at least one locating block formed on and protruding from the pressing element. The blot is connected to the pressing element, is screwed with the position hole and has a body and a mounting head. The body is mounted in the position hole and has a mounting segment and an operating segment. The mounting head is formed on the mounting segment and is mounted rotatably in the mounting recess.
