81results about How to "Low construction environment requirements" patented technology

The invention provides a transverse moving flat car of a portal crane and a transverse moving method, and solves the problems of reassembly, prolonging of the construction period and increment of the cost in transverse movement of the portal crane from one set of operation rails to the other set of operation rails or even multiple sets of operation rails. The transverse moving flat car of the portal crane comprises a connecting beam, two walking mechanisms, two jacking systems, a rail bracket and a walking mechanism traction device; the two walking mechanisms are positioned at two ends of the connecting beam, and are connected through the walking mechanism traction device; the walking mechanisms can linearly move back and forth along portal crane operation guide rails; the two jacking mechanisms are positioned on the inner sides of the two walking mechanisms; one ends of the jacking mechanisms are arranged on the rail bracket; the rail bracket is matched with transverse moving flat car operation guide rails; the portal crane operation guide rails are arranged below the rail bracket; and the other ends are contacted with the connecting beam.

The invention relates to a water landscape device, which comprises a substrate arranged underwater. The substrate is provided with a viewing container; the viewing container is of an inverted flask-shaped structure of which the bottom diameter is bigger than the top diameter; the mouth of the viewing container is arranged underwater; a gas pipeline and a liquid pipeline are arranged in the viewing container; one end of the gas pipeline is inserted from the lower part of the viewing container to extend above the water in the viewing container; the other end of the gas pipeline is connected with a vacuum pump; one end of the liquid pipeline is inserted from the lower part of the viewing container to extend below the water in the viewing container; the other end of the liquid pipeline is connected with a circulating water pump. According to the water landscape device provided by the invention, by matching the viewing container, the gas pipeline and the liquid pipeline with the vacuum pump and the circulating water pump, underwater landscapes are lifted to be above the water. The Torricelli principle, the lens principle, the total reflection principle and the theory of communicating vessels are fully utilized, and therefore, the water landscape device has the advantages that the structure is simple, the construction and the maintenance are convenient, the ornamental effect is strong, the stereoscopic impression is strong and the visual impact strength is high.