Tunnel blasting safety protection structure

The utility model relates to the technical field of blasting construction, and discloses a tunnel blasting safety protection structure which comprises a protection wall and a top plate, a groove hole is formed in the bottom of the top plate, a limiting rod A is fixedly installed on the inner wall of...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	ZHENG WENFEI, BI ZHIGANG, WANG CHENG, WU PENGYAN, XIAN YONGGANG, CHEN MINGFEI, YOON, NUNG AH
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	AMMUNITION BLASTING HEATING LIGHTING MECHANICAL ENGINEERING PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SEPARATION TRANSPORTING WEAPONS
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Beschreibung
Zusammenfassung:	The utility model relates to the technical field of blasting construction, and discloses a tunnel blasting safety protection structure which comprises a protection wall and a top plate, a groove hole is formed in the bottom of the top plate, a limiting rod A is fixedly installed on the inner wall of the groove hole, a supporting rod is movably connected to the surface of the limiting rod A, and threaded holes with the same specification are formed in the surface of the supporting rod. The inner wall of the threaded hole is in threaded connection with a threaded rod, and the surface of the threaded rod is movably connected with a connecting block. According to the tunnel blasting safety protection structure, through the arrangement of the protection wall, the supporting column, the connecting block, the telescopic rod and the protection plate, before use, the protection plate is fixed to the surface of the protection wall, then the supporting column is connected to the surface of a limiting rod A, and then a t