Entrance to a cave locator

The utility model relates to an entrance to a cave locator for two reference surface that set up with the help of perpendicular to construction surface and mutually perpendicular on construction surface fix a position the position at the entrance to a cave, and entrance to a cave locator includes: t...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	XU YAOZU, ZHANG DADONG, SUN HONGXIAO, XIA YUELIANG, ZHANG GUANGXING, HU QINGYUN, ZHAO WENJIE, LIU XUCHAO, GU SHASHA, ZHENG ZHIMIN
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	BUILDING BUILDING IMPLEMENTS OR OTHER BUILDING AIDS, OR THEIRUSE FIXED CONSTRUCTIONS FORMS HANDLING BUILDING MATERIALS ON THE SITE REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTINGBUILDINGS SCAFFOLDING SHUTTERING
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Beschreibung
Zusammenfassung:	The utility model relates to an entrance to a cave locator for two reference surface that set up with the help of perpendicular to construction surface and mutually perpendicular on construction surface fix a position the position at the entrance to a cave, and entrance to a cave locator includes: the single wire erection and extension device comprises a connecting piece. The movably a pair of ruler of wearing to locate connecting piece and mutually perpendicular, and articulate in the marking ruler of connecting piece, and marking ruler's hinged end and the corresponding setting of a pair ofruler, when advancing line location in the position to the entrance to a cave, will a pair of ruler support perpendicularly the reference surface who leans on in corresponding, position on a pair of ruler that removal regulation connecting piece is located, make marking ruler's the distance of hinged end apart from the centre of a circle at the reference surface's that corresponds distance and theentrance to a cave of wai