DEVICE FOR TRENCHLESS LAYING OF PIPE-LINES BY METHOD OF PUNCTURE Russian patent published in 2002 - IPC

FIELD: construction engineering, applicable for arrangement of concealed passages in construction of pipe-lines, underground communication cable lines and electric power transmission lines. SUBSTANCE: device has a hollow tapered end piece connected to a rod through a hinge installed on rotation supports, with a rod, vibrator of circular vibrations in the form of a roller resting on the inner surface of the hollow working end piece, vibrator drive installed in the laid pipe- line and connected to the rod, and a haulage mechanism. The rod is installed on the rotation supports on the flange fastened on the frond end of the laid pipe-line, if viewed in the direction of puncture. EFFECT: simplified construction and enhanced reliability of the device. 3 dwg