Patent of unmanned tower crane
After the roof of the climbing tower crane in the super high-rise building is disintegrated, it is suspended by adding a roof, and the roof crane is unloaded by a handle or a small elevator, and the rest is unloaded by a construction elevator; Internal climbing tower crane, referred to as internal climbing crane, is a kind of tower crane installed in the elevator shaft or stairwell inside the building and gradually climbs up with the construction process.