EAR WEDGED CONNECT PIECE SUITABLE FOR U-SHAPED STEEL SUPPORT USED IN MINE

The utility model relates to a device suitable for a mine, in particular to an ear wedged connect piece suitable for a U-shaped steel support used in the mine tunnel of a coal mine and other kinds of soft rock tunnel support. The ear of the U-shaped steel is wedge caulked by means of a cambered surf...

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Bibliographische Detailangaben
Hauptverfasser:	HOU CHAOJIONG, ZOU XIZHENG, ZHOU HUAQIANG
Format:	Patent
Sprache:	eng
Schlagworte:	EARTH DRILLING FIXED CONSTRUCTIONS GALLERIES LARGE UNDERGROUND CHAMBERS MINING SHAFTS TUNNELS
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Beschreibung
Zusammenfassung:	The utility model relates to a device suitable for a mine, in particular to an ear wedged connect piece suitable for a U-shaped steel support used in the mine tunnel of a coal mine and other kinds of soft rock tunnel support. The ear of the U-shaped steel is wedge caulked by means of a cambered surface, so a support frame is not only provided with definite working resistance, but also the support frame is provided with flexibility. The existing prior art has the disadvantages of used steel amount multiplied, processing technology complicated, cost heighten, resistance force lowed, usage times definite operations inconvenient, etc. Compared with the existing prior art, the utility model solves all kinds of insufficiencies of the existing prior art.