Sealed water pipe connecting mechanism

The invention discloses a sealed water pipe connecting mechanism. The sealed water pipe connecting mechanism comprises a water pipe joint; a metal embedding pipe is fixedly arranged in a water pipe positioning hole of the water pipe joint in a sleeving mode; an internal screw thread is disposed on the inner wall of the metal embedding pipe. The sealed water pipe connecting mechanism is characterized in that the water pipe positioning hole is a stepped hole; the inner diameter of a small hole of the stepped hole is smaller than that of the metal embedding pipe to form a sealed step; a seal ring is disposed on the inner wall of the upper end port of the metal embedding pipe; the inner diameter of the upper end of the seal ring is equal to that of the internal screw thread; the inner diameter of the lower end of the seal ring is smaller than that of the internal screw thread; the inner diameter of the seal ring is in smooth transition from bottom to top. The sealed water pipe connecting mechanism has the beneficial effects that the structure is simple; dismounting is convenient; multiple sealing between the metal embedding pipe and the pipe joint and between the metal embedding pipe and an external pipe is achieved; the sealing effect is greatly improved; meanwhile, the anti-seismic property of the pipe connecting structure is improved.