Rapid positioning instrument for surveying and mapping land engineering
The utility model provides a land engineering surveying and mapping rapid positioning instrument which comprises a positioning instrument support, a threaded connecting pipe is integrally arranged on the upper portion of the positioning instrument support, a threaded connecting rod is connected to t...
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Format: | Patent |
Sprache: | chi ; eng |
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Online-Zugang: | Volltext bestellen |
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Zusammenfassung: | The utility model provides a land engineering surveying and mapping rapid positioning instrument which comprises a positioning instrument support, a threaded connecting pipe is integrally arranged on the upper portion of the positioning instrument support, a threaded connecting rod is connected to the upper portion of the threaded connecting pipe in a threaded mode, and a receiver is fixed to the upper portion of the threaded connecting rod through bolts. A positioning point marker is installed in the middle of the lower portion of the positioning instrument support, and a sliding opening and closing device is installed on the inner side of the positioning point marker. The positioning point marker comprises a cylindrical storage pipe, and an inclined discharge port is formed in the middle of the lower portion of the cylindrical storage pipe. The lime powder storage device disclosed by the utility model has the beneficial effects that through the arrangement of the cylindrical material storage pipe, the incli |
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