Tunnel detection device

The utility model discloses a tunnel detection device relates to tunnel detection technical field. This tunnel detection device, including the base, the bottom fixed mounting of base has the supporting shoe, it is equipped with the pivot to alternate on the supporting shoe, the equal fixed mounting in both sides of pivot has the rail wheel, the top interlude of base is equipped with the sliding seat, the bottom fixed mounting of sliding seat has the limiting plate, the last both sides that just are located the sliding seat of limiting plate are all inlayed and are had the sliding sleeve. This tunnel detection device through the setting to electro -magnet, permanent magnet, supporting spring, supporting seat, bull stick, makes the check out test set at the in -process that uses, detects the head and can control the regulation detection, makes whole equipment detect in the inside to the tunnel that the in -process that uses can be quick like this to the effectual detection efficiency who improves the tunnel has