Abstract:
An opening and closing device of the water gate is provided that the installation cost is decreased and the installation space can be minimized since a plurality of water gates can be opened and closed by one winch. An opening and closing device of the water gate comprises a water gate(100) in which a first wire rope(120) is connected to one side of the bottom part, a winch unit(200) in which a second wire rope(220) is reeled in the wire drum and is wound by the driving device, a wire rope connector which interconnects the first wire rope and the second wire rope, a winch unit transfer device opening and closing a plurality of water gates.
Abstract:
A dam using an environment-friendly method of construction is provided to prevent the formation of pollutants and to purify polluted water by discharging the water of the reservoir side together with pollutants at a time through a water channel formed over the whole cross section and the whole width of a water channel and aerating while discharging pollutants, and to prevent the accumulation of soil around a water channel by discharging soil together with water. The dam using an environment-friendly method of construction for purifying polluted water and discharging soil easily by installing a drainage system of the whole cross section and the whole width of a water channel comprises a dam structure(100) composed of an upper dam structure(110) and a lower dam structure(120), and many supports(130) placed between the upper dam structure and the lower dam structure and extended longitudinally from the reservoir side to the drainage side to form a water channel(140) in a space between the upper dam structure and the lower dam structure, and a water gate(200) installed to the reservoir side of the water channel to open and close the water channel over the whole cross section and the whole width of the water channel and composed of unit water gates(210) which are provided with many guide grooves and connected with each other by packing members to be movable. In addition, a winch(320) for lifting up a water gate is installed between winches(310) for guiding a water gate of the upper dam structure and connected with a water gate lifting bar(321) connected with the top of the water gate to be reciprocable vertically.
Abstract:
PURPOSE: A furniture door opening/closing device is provided to help elderly people or children to more easily, conveniently open or close a furniture door, more particularly, a heavy furniture door. CONSTITUTION: The furniture door opening/closing device includes a first guide groove(14) formed at inner wall surfaces on both sides of the furniture(10); a second guide groove(15) longitudinally extended and tilted at a designated; a sliding bracket(20) having first and second guide projections(24,25) slidably movable on the first and second guide grooves(14,15), respectively; a cylinder(30) connected to the sliding bracket(20) and for compressing the sliding bracket(20) to move along the first and second guide grooves(14,15) in the rear upper direction; a closed section(12) formed at the front portion of the first guide groove(14); and an opened section(13) formed at the rear portion of the closed section(13).