Cantilever of little efflux of high pressure prevention and cure coal and gas outburst device

The utility model discloses a cantilever of little efflux of high pressure prevention and cure coal and gas outburst device, including first cantilever tie -beam, second cantilever tie -beam, third cantilever tie -beam, a plurality of round pin screw and a plurality of nut, the one end of first cant...

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Bibliographische Detailangaben
Hauptverfasser:	CAI YI, FENG ZHILIANG, ZHAO LUMIN, BI WEIDONG, ZHANG JIAYONG, SONG YONGHUAN, GUO LIWEN, REN GUOZHU
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	EARTH DRILLING FIXED CONSTRUCTIONS MINING SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, ORDRAINING IN OR OF MINES OR TUNNELS
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Beschreibung
Zusammenfassung:	The utility model discloses a cantilever of little efflux of high pressure prevention and cure coal and gas outburst device, including first cantilever tie -beam, second cantilever tie -beam, third cantilever tie -beam, a plurality of round pin screw and a plurality of nut, the one end of first cantilever tie -beam is equipped with first connecting plate, first cantilever tie -beam of a plurality of round pin screw connections and second cantilever tie -beam to through the fastening of a plurality of nuts, first cantilever tie -beam is 4 with the contained angle of second cantilever tie -beam, the other end of second cantilever tie -beam is equipped with the second connecting plate, and round pin screw connection second cantilever tie -beam is connected with third cantilever tie -beam to through the fastening of a plurality of nuts, second cantilever tie -beam is 4 with the contained angle of third cantilever tie -beam. The utility model discloses can fast and firmly be connected to three sections cantilever