Fine adjustment mechanism of surveying and mapping instrument

The utility model discloses a surveying and mapping instrument fine adjustment mechanism which comprises a bowl-shaped bottom shell, a hemispherical block is placed in the bowl-shaped bottom shell, the upper end of the bowl-shaped bottom shell is fixedly connected with an annular plate, the bottom f...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	ZHENG YANYAN, SI BINGFANG, YAN FAZHAN, ZHANG YA'NAN, CHEN LIFENG, CHEN XIAOXIA, ZHANG XIAODAN, DU XINKE, REN XIAOJIE, SU HONGPU
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	BLASTING ENGINEERING ELEMENTS AND UNITS FRAMES, CASINGS, OR BEDS OF ENGINES OR OTHER MACHINES ORAPPARATUS NOT SPECIFIC TO AN ENGINE, MACHINE, OR APPARATUSPROVIDED FOR ELSEWHERE GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MECHANICAL ENGINEERING STANDS OR SUPPORTS THERMAL INSULATION IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	The utility model discloses a surveying and mapping instrument fine adjustment mechanism which comprises a bowl-shaped bottom shell, a hemispherical block is placed in the bowl-shaped bottom shell, the upper end of the bowl-shaped bottom shell is fixedly connected with an annular plate, the bottom face of the annular plate is rotationally connected with three evenly-distributed supporting legs, the three supporting legs swing in the radial direction of the annular plate, and a supporting foot is arranged below each supporting leg. Under the action of the gravity of the adjusting assembly, the hemispherical block is driven to rotate in the bowl-shaped bottom shell until the hemispherical block is perpendicular to the ground, then the adjusting assembly drives the extrusion cover to move upwards to abut against the bottom of the bowl-shaped bottom shell, and at the moment, the hemispherical block is supported to move downwards in the bowl-shaped bottom shell through counter-acting force to complete fixation; th