Abstract:
Die Erfindung betrifft einen Türantrieb oder Türschließer (1), aufweisend mindestens ein Gehäuse (2) und wenigstens einen in einer Aufnahme (5) des Gehäuses (2) bewegbar gelagerten Kolben (7), wobei die Oberflächen (6, 8) der Aufnahme (5) und/oder des wenigstens einen Kolbens (7) durch Belichtung mit elektromagnetischer Strahlung behandelt sind.
Abstract:
Beschrieben wird eine Kraftspeicher-Rückstelleinheit für eine Tür (20), bei welcher die gespeicherte Energie über ein Anpresselement verfügbar ist. Die Rückstelleinheit ist dadurch gekennzeichnet, dass das Anpresselement wenigstens mittelbar mit einem in einem ersten Zylinder (16) axial geführten ersten Kolben (2,42) verbunden ist, wobei dieser erste Kolben (2,42) im ersten Zylinder (16) einen ersten Hydraulikraum (36) begrenzt, und der erste Hydraulikraum (36) über wenigstens einen Verbindungskanal (39) mit einem zweiten Hydraulikraum (37), in welchem ein zweiter Kolben (3,42) in einem zweiten Zylinder (17) axial geführt ist, hydraulisch gekoppelt ist, und dass der zweite Zylinder (17) auf der dem zweiten Hydraulikraum (37) abgewandten Seite wenigstens mittelbar mit einer Gasfeder (38) verbunden ist.
Abstract:
The present invention relates to a hydraulic movable weir. Disclosed is a hydraulic movable weir including a weir gate that is provided between weir frames and is opened/closed while rotating about a main shaft in a lower end portion; a main arm whose one end portion is coupled with the main shaft for integral rotation with the main shaft; a link unit that is configured to have a first link and a second link which are operated in interworking with the main arm so that the main arm rotates about the main shaft, an x link module including a central shaft, and a guide link; a driving unit that is configured to have a piston rod which is hinge-coupled with a lower end of the first link of the link unit and a hydraulic cylinder and provides power for an operation of the link unit; and a locking unit that is engaged with a stopper which is provided at a lower end of the first link, restricts the operation of the link unit, and maintains an opening/closing angle of the weir gate.
Abstract:
The present invention relates to an environment-friendly method for reviving a natural ecosystem and purifying contaminated river water to clean river water by using a multipurpose movable weir flood gate with a fishway reviving a river ecosystem. Bottom water stored inside the floodgate is priorly discharged by lifting the lower part of the floodgate slightly while water is stored by making the flood gate stand so as to discharge contaminants such as sediment stacked on a bottom layer with the discharged water and purify the contaminated river water naturally.
Abstract:
The present invention relates to a moveable weir having side road and fish way functions which includes: a floodgate (10) blocking the water flowing from the upper side of river; a rotary shaft (20) fixated to the lower portion on both sides of the floodgate (10); supports (not shown) disposed on both sides of the floodgate (10) to rotatably support the rotary shaft (20); a hydraulic operating part (not shown) having a piston rod and a cylinder reciprocating the piston rod and adapted to erect or overturn the floodgate (10) by means of the extension and contraction of the piston rod; and rotary auxiliary plates (50) extended from the top portion of the floodgate (10) in a lengthwise direction in such a manner so as to be rotatably coupled to the floodgate (10), and performing a side road function when the floodgate (10) erects and a fish way function when the floodgate (10) overturns.
Abstract:
The present invention relates to a movable weir capable of discharging bottom water, which discharges bottom water downward through a bottom water discharge portion connected to a movable panel, without having any adjustment of the angle of the movable panel, thus securing the contained water level and preventing the decay of river and the destruction of ecosystem. According to the present invention, an oil pressure type movable weir, which adjusts the quantity of water in river by adjusting the angle of a movable panel through oil pressure type cylinders, includes: the movable panel having a bottom water discharge hole formed to pass through the lower end thereof; and a bottom water discharge portion fixedly disposed on the rear surface of the movable panel to open and close the bottom water discharge hole, wherein the bottom water discharge portion includes: a body fixed unitarily to the rear surface of the movable panel and having an inlet formed on one side thereof in such a manner as to communicate with the bottom water discharge hole and an outlet formed on the other side thereof; a watertightness pad disposed along the periphery of the inlet in such a manner as to be located inside the body; guide rails fixedly disposed on both sides of the interior of the body and each having a rack gear disposed on one side thereof; a bottom water discharge floodgate sliding along the guide rails in such a manner as to be brought into close contact with the watertightness pad and having guide rollers and pinion rollers contactedly supported by the guide rails and the rack gears; and driving cylinders fixedly disposed on one side of the body to slide the bottom water discharge floodgate upward and downward.
Abstract:
The present invention relates to a hydraulic type movable sluice whose lower end rotates to be closed on the top end of a door plate, which is capable of regulating the water level or blocking seawater or rainwater by being installed in a conduit or a river, and which is opened in parallel with an upper plate. The hydraulic type movable sluice comprises a door frame which is fixed to a structure crossing the upper part of a waterway or a conduit; a door plate which is combined with the door frame in order to open or close the waterway or the conduit by the up and down rotation of the fore-end of the lower part thereof; an overflow discharging hole which discharges water above a fixed level at the upper part of the door plate; a door plate bracket which is installed at the front side of the door plate in order to protrude at a fixed height; a hydraulic cylinder which is installed between the door plate bracket and a door frame bracket protruding from the front side of the door frame; a distortion preventing frame which is fixed at the right angle to the hydraulic cylinder on the front side of the distortion preventing frame; a floating material filtering plate which is installed in a shape of covering the hydraulic cylinder at the front side of the distortion preventing frame; and a filtering projection which is formed in the upper part of the floating material filtering plate so that the door plate can be fixed in a horizontal state as being held on a stopper installed in the upper part of a cover.