Gas pipeline through hole ware

The utility model discloses a gas pipeline through hole ware belongs to gas pipeline construction equipment field, its technical scheme as follows, including first sleeve, first telescopic both ends are fixed with second sleeve and third sleeve respectively, be equipped with the retaining thread on the third sleeve, the push rod has been cup jointed in the first sleeve, the push rod is close to the telescopic one end of third and is fixed with the hole cutter head, the other end of push rod is equipped with the propulsion screw thread. Has the advantage that can not take place the gas and leakwhen carrying out the trompil. 本实用新型公开了种燃气管道通孔器，属于燃气管道施工装置领域，其技术方案如下，包括第套筒，所述第套筒的两端分别固定有第二套筒和第三套筒，所述第三套筒上设有固定螺纹，所述第套筒内套接有推杆，所述推杆靠近第三套筒的端固定有开孔钻头，所述推杆的另端设有推进螺纹。具有在进行开孔时不会发生燃气泄漏的优点。