Waterproof stopper in prestressing force pore and prestressed structure

The utility model relates to a waterproof stopper of prestressed aperture and prestressed structure, the waterproof stopper of prestressed aperture, including cock body, connecting piece, gripping member and anticreep spare, the cock body is the elasticity rotary-table, said connecting piece inserts in the said cock body, its both ends all send forth said cock body terminal surface, the gripping member fixed connection be in said connecting piece is sent forth the sector of the great end of cock body, anticreep spare is connected said connecting piece is sent forth the sector of the less end of cock body. The prestressed structure includes the concrete structure body, prestressed aperture, anchor backing plate and waterproof stopper, the cock body of waterproof stopper with hole on the said anchor backing plate matches, works as the cock body of waterproof stopper inserts during said anchor backing plate, said cock body outer wall with prestressed aperture tip inner wall is closely laminated. In the current prestressed structure work progress of this application solve, thereby the prestressed aperture is intake easily and is influenced prestressing force dry mass's problem.