Surveying and mapping device for urban and rural planning

A surveying and drawing device for urban and rural planning comprises a base and a drawing board, and the drawing board is hinged to the base. A first supporting frame and a second supporting frame are arranged at the end, away from the hinged position, of the base and symmetrically arranged on the...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	HAN ZELONG, REN SHEN, HAO DELI, PANG HEXIANG, WANG YANGE, TANG WEITAO, LI ZHENJI, LIU SHUAIBIN, DU DANNI, LI CAI, CHEN BO, NIE ZHONGLI
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ACCESSORIES FOR WRITING OR DRAWING ARTICLES FOR WRITING OR DRAWING UPON BUREAU ACCESSORIES CABINETS COFFEE MILLS DESKS DOMESTIC ARTICLES OR APPLIANCES DRAWERS FURNITURE GENERAL DETAILS OF FURNITURE HUMAN NECESSITIES OFFICE FURNITURE PERFORMING OPERATIONS SPICE MILLS SUCTION CLEANERS IN GENERAL TABLES TRANSPORTING WRITING OR DRAWING IMPLEMENTS
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Beschreibung
Zusammenfassung:	A surveying and drawing device for urban and rural planning comprises a base and a drawing board, and the drawing board is hinged to the base. A first supporting frame and a second supporting frame are arranged at the end, away from the hinged position, of the base and symmetrically arranged on the two sides of one end of the base. A rotating shaft is rotatably arranged at the bottom of the drawing board, and the rotating shaft is arranged in the first support frame and the second support frame in a penetrating manner; gears are arranged at the two ends of the rotating shaft, arc sliding grooves are formed in the first supporting frame and the second supporting frame, and lower teeth are arranged on the lower surfaces of the sliding grooves of the first supporting frame and the second supporting frame; upper teeth are arranged on the upper surface of the sliding groove of the first supporting frame. According to the surveying and drawing device for urban and rural planning, the angle between the drawing board