2results about How to "Achieve demolition" patented technology

This invention discloses a dismantling device and method for the substructure of a bridge, belonging to the technical field of bridge dismantling equipment. It includes self-locking casters, a lifting platform, a support platform, a support panel, an insertion device, a rotating device, a drilling device, a top-support device, a release device, a transmission device, and a removal device. The insertion device and the rotating device are mounted on the support platform. The drilling device is connected to the insertion device. Two top-support devices are symmetrically arranged on the support panel. The release device and the removal device are both mounted on the support panel. The transmission device is also mounted on the removal device. This device provides a convenient method for dismantling square timber and back bracing by using screws or similar methods to limit their position on the side of the bridge abutment. By saving time and effort and releasing most of the required pulling force to the ground, the stability and operational efficiency of this device are improved.

The utility model relates to perpendicularity detection technical field, and disclose a kind of engineering supervision perpendicularity detection device, including plumb bob;By controlling main rod makes its one end to be elevated, and then make fixed idler wheel seat adhere wall, wherein movable idler wheel seat is tightly attached to wall under the action of limiting rod and buffer spring, and then make main rod occur inclination fixed idler wheel seat and movable idler wheel seat are tightly attached to wall, ensure that lifting line hook is more labor-saving, when line hook is lifted to high place, plumb bob can be lifted by pulling traction rope, by controlling buckle column is embedded in limiting seat and rotates, make limiting plate reach the depth of buckle groove, at this moment, locating seat will be deeply into buckle groove under the action of supporting spring, and then realize the fixation of limiting plate, reach the effect of main rod extension, after use is completed, after limiting limiting seat by pulling locating seat, buckle column can be taken out from limiting seat, realize the removal of auxiliary rod.