Abstract:
Es wird eine Schließeinrichtung für einen an einer horizontalen Tragschiene längsbeweglich geführten Türflügel beschrieben. Parallel zur Tragschiene ist ein beweglicher Rollenwagen vorgesehen, der zwei Umlenkrollen trägt. Zwei Seilzüge sind mit ihrem einen Ende an dem Türflügel und mit ihren anderen Enden ortsfest befestigt. Sie sind um je eine der Umlenkrollen geführt. Eine Feder verbindet den Rollenwagen mit einem ortsfesten Punkt. Eine Bewegung des Türflügels bewegt auch den Rollenwagen und spannt die Feder vor. Bei Beendigung der gegen die Feder wirkenden Kraft entspannt sich diese wieder und fährt den Rollenwagen in seine Ausgangsposition zurück. Durch Mitnahme über die Seilzüge bewirkt die Bewegung des Rollenwagens das Schließen des Türflügels. Der Weg des Türflügels ist jeweils doppelt so groß wie der des Rollenwagens.
Abstract:
Ein Sicherheitsventil für pneumatisch oder hydraulisch zu betätigende Einrichtungen, die im Falle eines Brandes in einen vorbestimmten Zustand gebracht bzw. in einem vorbestimmten Zustand gehalten werden müssen, insbesondere für Feuerrschutztüren, weist ein Ventilelement (2,4) auf, das auf einen Ventilsitz (20) bewegbar ist und dessen dem Ventileinlaß (1) zugewandt Fläche kleiner ist als seine dem Ventilauslaß (18) zugewandte Fläche. Das Sicherheitsventil enthält ein durch Hitze zerstörbares Auslöseelement (8), und bei dessen Zerstörung wird ein mit dem Ventilelement (2,4) verbundener Steuerhohlraum (22) belüftet und dadurch das Ventilelement (2,4) in seine Abdichtstellung bewegt.
Abstract:
The present invention relates to a complex floodgate winch and, more specifically, to a complex floodgate winch comprising: a main body; a hydraulic device controlling the rotation direction of a hydraulic motor by increasing and decreasing oil pressure by installing in the main body; a driving unit located above the hydraulic device and driving the hydraulic deice by the rotation of the driving shaft; a main shaft gear installed in the main body to erect and rotated by the hydraulic motor of the hydraulic device; a main shaft fastened in the center of the main shaft gear and extending to both ends of the main shaft gear; and a winching means winching the floodgate on both end parts of the main shaft. As above, the complex floodgate winch of the present invention can perform smooth winching by winching a floodgate using the pressure of a fluid, can prevent the floodgate from falling or rapidly dropping by installing a reverse rotation preventing device, and can safely and efficiently control the floodgate by a dual control device. In particular, the present invention minimizes the driving motor from three phases into a single phase as compared to the prior driving motor, thereby reducing production costs and maintenance expenses, maximizing operation using oil pressure and the minimum force, performing construction efficient in space use by reducing the weigh and volume of appearance, and having compatibility with the products manufactured in the existing company, such as a pin-jack type, a screw type, a wire type, a hydraulic cylinder type.
Abstract:
PURPOSE: A sluice gate device embedded with components is provided to uniformly disperse a load applied to a sluice gate part to a rotary shaft part and an arm part of the sluice gate device. CONSTITUTION: A sluice gate device(1000) embedded with components comprises a sluice gate part(100), a sluice gate operation part, and sluice gate housing parts(300a,300b). The sluice gate part is installed in a drainage canal and controls the storage of water. The sluice gate operation part is connected to the bottom end of the sluice gate part and operates the sluice gate part. The sluice gate housing parts are formed on the side surfaces of the sluice gate part and support the sluice gate part.
Abstract:
PURPOSE: A water-gate winch of a hydraulic pin-jack type with enhanced control performance is provided to remarkably enhance control performance on a water gate since if the operation of an electric motor or a manual handle stops, the water gate can maintain current state until a separate operation is performed. CONSTITUTION: A water-gate winch of a hydraulic pin-jack type with enhanced control performance comprises a first shaft, a second shaft, a first gear portion, a second gear portion, a rack gear, a rack bar, a water gate and a controller. The first and second shafts are successively installed at a given interval. The first gear portion is installed on one end of each of the first and second shafts. The first gear portion is engaged and receives the torque between shafts. The second gear portion is symmetrically installed on both sides of the second shaft. The rack gear and the rack bar are connected to the first and second gear portions and convert rotating movement to linear movement.
Abstract:
PURPOSE: A door-closer for fire prevention having preventing hydraulic fluid diffusion, which can remove firing factors by a door closer, is provided to prevent the breaking down of a cylinder body by hydraulic fluid whose volume is expanded by thermal expansion. CONSTITUTION: A door-closer for fire prevention having preventing hydraulic fluid diffusion comprises a cylinder body, a piston(20), a spring(30), a hydraulic fluid and a rotary shaft(50). A containing part(11) is formed on the cylinder body. The piston is installed in the containing part of the cylinder body. The spring supports a piston installed in the containing part of the cylinder body in a specific direction.