OPERATOR CABIN, OPERATING IN CONDITIONS OF HIGH DUST CONTENT AND HIGH NOISE LEVELS Russian patent published in 2018 - IPC E04H1/12 E04B1/82 

FIELD: security facilities.

SUBSTANCE: invention relates to safe instruments of labor, in particular during operators activities in emergency situations, accompanied by increased levels of dust and noise. Operator's cabin, operating in conditions of high dust content and high levels of noise, comprises a base, frame, ceiling part with luminaires, life support equipment, window and door openings and enclosures in form of acoustic panels. Base is installed on at least three pneumatic bumpers made in form of rubber-cord shell, cabin frame in the form of acoustic noise-absorbing panels is rigidly fastened to it. Front wall has glazing composed of noise-reflecting translucent polygonal panel, for example a rectangle formed by a U-shaped form by ribs made of a vibration damping material. Panel from solid plate out of extruded polycarbonate plastic is used as the sound reflecting translucent element. Rear wall is located in a plane parallel to the plane of the front wall, in one of the four side walls a door is installed. Area of rear wall of at least in 2 times more than area of front wall, the side walls adjoining front wall are inclined relative to it and glazed, and walls adjacent to rear wall are perpendicular to it. Sealed cabin is equipped with life supporting system composed by artificial microclimate system with control board, as well as a workplace that includes a work table, a chair with vibration isolators in the form of elastomer plates attached to the legs of the chair, and a hanger for changing clothes. Life support system is made in form of artificial microclimate system with control panel, for example, in form of cartridge conditioner produced by General Climate. Operator’s workstation is equipped by a work table and a chair with vibration isolators in the form of elastomer plates attached to the chair legs. Elastomers used are "Vibroflex EP/25A” type or "VEP" type vibration damping plates. Acoustic noise-absorbing panel for cladding the operator's cabin is made in the form of a sound-absorbing element, containing a body with external and internal perforated walls, between which layers of sound absorbing material are placed. First more rigid layer is made continuous and profiled and fixed at the internal surface, and the second layer is softer than first one and is intermittent and placed in focus of sound reflecting surfaces of first layer. Third layer of sound-absorbing element is made from foamed sound absorbing material, for example a construction sealing foam, and is located between first, more rigid layer and perforated surface of sound absorbing element. Intermittent sound-absorbing layer located in focus of solid profiled layer, is made in the form of rotation bodies, and is secured by means of rods parallel to perforated surfaces, which are rigidly connected to each other by means of vertical, perpendicular fasteners, one end of which is rigidly fixed to a smooth surface, and second one is made in form of clamp enclosing rod and tightening it with screw. Solid shaped layer is made from more rigid sound-absorbing material with sound reflection factor higher than that of sound absorption. Profiles are formed by spherical surfaces, connected together so that in general each of the profiles forms a solid domed profile that focuses the reflected sound on the same soft intermittent sound-absorbing layer. Intermittent sound-absorbing layer located in focus of solid profiled layer, comprises, at least one rigid resonant shell with resonant holes that perform the functions of the neck of the Helmholtz resonators, wherein the cavity of the shell is an additional volume of the Helmholtz resonators.

EFFECT: invention increases efficiency of operator due to decreasing of dust and noise levels.

1 cl, 9 dwg