Abstract:
The present invention relates to a cylinder mechanism, which applies force to completely open a hatch when the hatch of a vehicle is opened more than a certain angle. According to a preferred embodiment of the present invention, a cylinder mechanism for hatch opening of a vehicle includes: a cylinder body of which an internal space is filled with gas; a piston unit which is inserted into the cylinder body to reciprocate longitudinally; a guide which covers part of the outer surface of the piston unit in order to inhibit shaking in the other direction except the movement of the piston unit in a longitudinal direction; an oil chamber which is arranged in the guide to receive a lubricant; an oil spreading pad which is formed to protrude toward the outer surface of the piston unit from the oil chamber, and spreads the lubricant supplied from the oil chamber over the outer surface of the piston unit; and a pressurizing fluid chamber which receives a fluid, which expands in volume at a temperature less than or equal to a certain temperature, therein, and pressurizes the oil chamber according to a change in an outdoor temperature such that the oil spreading pad selectively comes into contact with the outer surface of the piston unit.
Abstract:
The present invention relates to multipurpose stepping-stones performing a role of stepping-stone as well as both roles of a fishway and a weir. The multipurpose stepping-stone comprises stepping stones of one or more rows comprising a plurality of fixing blocks including a first change unit so that the stepping-stones are fixed or move only in the vertical direction and a movable weir of one or more rows comprising a plurality of change blocks including a second change unit so that the stepping-stones are connected to the side of the fixing block and changed around the fixing block.
Abstract:
The present invention relates to a turning type weir for adjusting the water level in rivers and, more specifically, to an enhanced turning type weir to minimize the height difference between upper stream and down stream. The present invention increases discharge efficiency by making the thickness of floodgates be thinner than the diameter.
Abstract:
The present invention relates to an environmentally friendly method for restoring natural ecosystem by naturally purifying polluted river water using multistage automatic fishway and river ecosystem restoration system, which includes a step of installing a base pedestal (507) on the top of foundation concrete (100); a step of installing a rotary shaft (502) on one upper side and the other upper side of the base pedestal (507); a step of forming a guide frame (501) shaped into a ⊂ and a ⊃ on one side and the other side of the rotary shaft (502); a step of forming a cylinder rod support plate (508); a step of forming an operating cylinder rod hinge (202); a step of forming an operating cylinder hinge (511) on the bottom of the concrete (100); a step of hinging an operating cylinder (200) to the operating cylinder hinge (511); a step of hinging a cylinder rod (203) joined to the operating cylinder (200) to the operating cylinder rod hinge (202); a step of forming a multipurpose movable weir floodgate plate (500) functioning as a discharge path (600); a step of forming a hydraulic cylinder rod (503); and a step of completing the operating system of a multipurpose movable weir floodgate (700) functioning as a water purifier having the sedimentation sludge discharge path (600) functioning as a fishway by joining the multipurpose movable weir floodgate (700) functioning as a water purifier to a CC camera comprehensive control system and a water level checker.
Abstract:
The present invention relates to an environmentally friendly method for naturally purifying contaminated river water by primarily discharging clean river water having a great specific gravity using a multipurpose automatic weir operation system functioning as a fishway and a water purifier, which includes a step of installing a base pedestal (507) on the top of foundation concrete (100); a step of installing a rotary shaft (502) on one upper side and the other upper side of the base pedestal (507); a step of forming a guide frame (501) shaped into a ⊂ and a ⊃ on one side and the other side of the rotary shaft (502); a step of forming a cylinder rod support plate (508); a step of forming an operating cylinder rod hinge (202); a step of forming an operating cylinder hinge (511) on the bottom of the concrete (100); a step of hinging an operating cylinder (200) to the operating cylinder hinge (511); a step of hinging a cylinder rod (203) joined to the operating cylinder (200) to the operating cylinder rod hinge (202); a step of forming a multipurpose movable weir floodgate plate (500) functioning as a discharge path (600); a step of forming a hydraulic cylinder rod (503); and a step of completing the operating system of a multipurpose movable weir floodgate (700) functioning as a water purifier having the sedimentation sludge discharge path (600) functioning as a fishway by joining the multipurpose movable weir floodgate (700) functioning as a water purifier to a CC camera comprehensive control system and a water level checker.
Abstract:
The present invention relates to an environmentally friendly method for restoring a river ecosystem and purifying polluted river water using a dual operational multipurpose movable weir floodgate having a sludge deposit outlet functioning as a fishway to purify polluted river water flowing to a river by forming a fishway for ecosystem restoration and discharging polluted river water flowing to the river after purifying it; and to maintain a predetermined amount of river water by preventing river water from being completely discharged through the bottom water discharge passage of a floodgate during a dry season.
Abstract:
The present invention relates to an environmentally friendly method for functioning as a fishway for restoring a natural ecosystem and naturally purifying polluted river water by primarily discharging clean river water a having great specific gravity to purify polluted river water flowing to a river by forming a fishway for ecosystem restoration and discharging polluted river water flowing to the river after purifying it; and to maintain a predetermined amount of river water by preventing river water from being completely discharged through the bottom water discharge passage of a floodgate during a dry season.
Abstract:
The present invention relates to an environmentally friendly method for naturally purifying polluted river water using an ecosystem restoration process by constantly forming a fishway for ecosystem restoration to purify polluted river water flowing to a river by forming a fishway for ecosystem restoration and discharging polluted river water flowing to the river after purifying it; and to maintain a predetermined amount of river water by preventing river water from being completely discharged through the bottom water discharge passage of a floodgate during a dry season.
Abstract:
The present invention relates to a miter gate system using buoyancy and an operating method thereof in order for a door plate of a miter gate to be smoothly operated when the door plates each installed to both inner sides of the miter gate are rotated to the upper part around the inner lower surface of the miter gate by the buoyancy of the water supplied while being lifted by a cylinder.
Abstract:
PURPOSE: A heat conduction type floodgate system is provided to simplify a controlling structure, facilitate installation, and improve the distortion and jamming of a floodgate without a pier. CONSTITUTION: A heat conduction type floodgate system comprises a floodgate part(11), a water guide board part(12), a cutwater board part(13), a supporting part(14), a hydraulic cylinder part(15), a power transmission part(16), and a rail part(17). The floodgate part is rotatably fastened to the upper surface(S1) of a protrusion. The hydraulic cylinder part is fixed to a wall surface(S2) which is formed by the protrusion and is fixed in parallel to the lower surface(S3) of the protrusion. The rail part is formed in the lower surface of the protrusion and provides a route on which the wheel of the power transmission part moves.