49results about How to "Fast snow removal" patented technology

A self-propelled snow remover has a machine body, travel units mounted on the machine body to undergo turning movement and linear movement, and at least one steering member mounted to the machine body and operable to turn the travel units. A snow-removing implement is mounted to the machine body to undergo lifting, lowering and rolling movements relative to the machine body. A lift drive mechanism lifts and lowers the snow-removing implement. A control unit controls the lift drive mechanism by issuing a lift drive instruction to the lift drive mechanism so as to automatically lift the snow-removing implement when a steering condition in which the steering member is turned is determined to be satisfied, and by issuing a lowering drive instruction to the lift drive mechanism so as to automatically lower the snow-removing implement when the steering condition is determined to be no longer satisfied.

An apparatus for removing snow from the surface of a pitched roof that is a substantially rectangular, flat, flexible sheet with a snow grasping surface and a snow sliding surface, said sheet being conformable to the shape of the snow.

A composite type of snow melting liquid is prepared from water, calcium chloride magnesium chloride, urea, sodium bisilicate and sodium molybdate. The liquid is solution in concentration of 20-80% and can be properly used in northern cites at temp of -33 deg.C.

The invention discloses a thermal insulation ceiling of a cement building and relates to the technical field of construction. The thermal insulation ceiling comprises thermal insulation plates, crossbeams, main supporting rods, auxiliary supporting rods, a main rod, a connecting cylinder and a top cover; the main rod is matched with the connecting cylinder; a connecting casing is fixed to the circumferential side face of the connecting cylinder; multiple connecting plates are fixed to the circumferential side face of the connecting cylinder; the main rod is matched with the top cover; a clamping groove is formed in the inner surface of the top cover; the connecting plates are matched with the cross beams; a connection base is fixed to one surface of each cross beam; each second groove isformed in one surface of the corresponding cross beam; the second grooves are matched with the thermal insulation plates; multiple connecting columns are fixed to the circumferential side faces of thethermal insulation plates; a retractable rod is fixed to one surface of each thermal insulation plate, and a third groove is formed in one surface of each thermal insulation plate. By using the smallcombined-type thermal insulation plates, clamping connection and sleeving connection are adopted on multiple parts, convenience is provided for installation and dismantling, and the thermal insulation plates can be recycled; the thermal insulation plates can be adjusted, the maximum adjustment angle is 90 degrees, and the problems that existing solid sunshades are inconvenient to disassemble andassemble, influence lighting and block the view are solved.

The invention relates to a moving inflation hangar door. The door comprises a rotary mechanism, an air rib door body, skin, a lifting mechanism and a windproof net, the outer side of the air rib doorbody is wrapped by the skin, the bottom of the air rib door body is connected with the rotary mechanism, the surface of the skin is covered with the windproof net, and the lifting mechanism is fixedlyinstalled on the inner side of the air rib door body. The door has the advantages that the air rib door body can be easily lifted or dropped, the air tightness of air ribs is strong after the air ribs are shaped, the maintaining time is long, the power consumption is low, the rain, snow and wind resisting performance is strong, the disguising and heat insulating performance is good, the skin andthe loosening of a pull net can be adjusted, snow removing can be rapidly conducted, the installation and dismantling time is short, and the shaping is fast.