CABIN FOR OPERATOR, WORKING UNDER CONDITIONS OF INCREASED DUST AND HIGH NOISE LEVELS Russian patent published in 2017 - IPC E04H1/12 E04B1/82 

FIELD: construction.

SUBSTANCE: cabin for operator, working under conditions of increased dust and high noise levels, contains a base, a frame, a life support equipment, a window with door openings and enclosures in the form of acoustic panels. The base is installed on at least three pneumatic vibration isolators made in the form of a rubber cord shell and the cabin frame made in the form of the polygon with ribs, perpendicular to the cabin base, is rigidly attached to it, and consisting of the front wall with glazing made from the noise-reflecting translucent panel, the ceiling part with lamps, the rear wall, located in the plane parallel to the plane of the front wall, and four side walls, in one of which there is a door. The area of the rear wall is at least 2 times greater than the area of the front wall, and side walls, adjoining to the front wall are inclined to it and glazed, and those adjoining to the rear wall are perpendicular to it. The cabin is sealed and equipped with the life support system in the form of the artificial microclimate system with the control panel, as well as the workplace, that includes the working table, the chair with vibration isolators in the form of elastomer plates, attached to the chair legs, and the clothes hanger. The acoustic noise absorbing panel is made in the form of the sound-absorbing structure, consisting of the rigid and perforated walls, between which there is the multi-layer sound-absorbing element made in the form of five layers, two of which, adjacent to the walls, are sound-absorbing layers of different densities materials, and three central layers are combined. The axial layer is made sound-absorbing, and two symmetrically located adjacent layers are made from the sound-reflecting material from the complex profile, consisting of uniformly distributed hollow tetrahedrons. Each of the perforated walls has the following perforation parameters: the hole diameter - 3÷7 mm, the perforations percentage 10÷15%. As the sound-proof material the plates from basalt-based mineral wool like "Rockwool", or "URSA" mineral wool, or basalt cotton wool P-75, or glass-wool with the woven glass liner are used. The sound absorbing element over the full surface is lined with the acoustic transparent material, for example, glass fabric EZ-100 or polymer of "poviden" type. Each of the pneumatic vibration isolators, on which the base of the cabin is mounted, is made as two-chamber type with at least three working chambers in the form of the rubber-cord shells, each of which is connected by the inter-chamber throttle with the damper chamber, located in the base of the cabin. The damper chamber is made in the form of the toroidal cavity of rectangular section, having the common bottom base and limited from above by the upper circular base, in which the inter chamber throttle is located, connecting the rubber cord shell cavities and the damper chamber. The upper circular base of the rectangular section toroidal cavity serves as the lower support surface of the rubber-cord shell, and the upper support surface of the rubber-cord shell is the support disk, on which the operator's cabin base is rest through the vibration damping gasket. Between the lower base of the rectangular section toroidal cavity and its upper circular base, on which a the rubber-cord shell is fixed by its lower support surface, there is the gap, connecting the pneumatic vibration isolator working and damper chambers cavity through the chamber throttle.

EFFECT: invention allows to increase the operator's efficiency due to decreased levels of dust and noise.

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