The utility model discloses an underground
engineering leak stoppage is with grouting auxiliary
pipe, including grouting auxiliary
pipe, the grouting auxiliary
pipe's grouting pipe mouth end is connected with grouting head main part, grouting head main part, grouting head main part includes fixed ring, is equipped with the connecting sleeve on the fixed ring, is used for with the connection of grouting auxiliary pipe, is seted up three groups of
accommodation cavities in the connecting sleeve, each group of
accommodation cavities all slide and set up the arc
pressboard, and the inner wall of connecting sleeve still is equipped with friction pad. The utility model discloses through three groups of arc
pressboard on connecting sleeve in the
accommodation cavity movement, can make it with the outer wall of underground
engineering leak stoppage is with grouting auxiliary pipe closely contact, cooperate the effect of friction pad, has improved the stability and sealing property that grouting head and underground
engineering leak stoppage are connected with grouting auxiliary pipe, avoid the leakage of
grout from the junction in the process of grouting, has guaranteed that
grout can flow along the direction of grouting auxiliary pipe laying, simultaneously, grouting head can be repeatedly used, has saved the use cost.