MINE VENTILATION JUMPER

FIELD: mining.SUBSTANCE: invention relates to the mining industry and can be used for the temporary isolation of mine workings during stoping works and in the event of a fire in the mine workings. Mine ventilation jumper includes a jumper base consisting of a ski sled or roller skis, on which a frame with sliding parts is installed, stretching the web covering the main section of the working. Base of the jumper is equipped with a rotating rod installed between the ski sleds or roller skis, the rotating rod has cutouts and is fixed in position, when notch fasteners are directed upwards and the axes of the notch fasteners are perpendicular to the ski sleds or roller skis. Rotating rod is installed with the possibility of extension along its axis with the help of cuts made in it, while an additional rod is located inside the rotating rod. Frame with sliding parts is made in the form of vertical racks and horizontal racks attached to them. Each rack consists of fixed and movable parts fastened together. Fixed part of each vertical rack is fixed in the notch fasteners of the rotating rod, for example, using pulleys, and the movable part is made with the possibility of its extension and fixing in position. Movable part of each horizontal rack is divided into two parts, installed with the possibility of extension in opposite directions. At the ends of the fixed part of each horizontal rack there are fixed rotating posts with the possibility of rotation relative to the roof and wall of the working and movement along the axis of the horizontal rack. In the lower fixed part and the upper movable part of each of the vertical posts and at the ends of the moving parts and the rotating posts of each of the horizontal posts there are grooves made, into which the pneumatic hose is placed. Web is put on top of the pneumatic hose, which in the inflated condition ensures a tight fit of the web to the mine workings.EFFECT: technical result consists in improving the insulating properties of the mine ventilation jumper while reducing operating costs in case of wear of the web and/or pneumatic hose.3 cl, 6 dwg Изобретение относится к горной промышленности и может быть использовано для временной изоляции горных выработок во время ведения очистных работ и в случае возникновения пожара в горных выработках. Шахтная вентиляционная перемычка включает основание перемычки, состоящее из лыжных салазок или лыжероллеров, на которых установлен каркас с раздвигающимися частями, растягивающим