Protective device and protective system

• Main Authors: YAN GANG, TAN WEI, JIAO BAOWEN, ZHANG LIFENG, FAN WEIXIAN, ZHAO XU, LIAN CHANGJIANG, CHEN SHI'AI, XING YE, WU YEHUI, WEN XUANYUE, LI JIANPING, YAN XIAOFENG
• Format: Patent
• Language: Chinese; English
• Published: 25.10.2019
• Subjects: GYROSCOPIC INSTRUMENTS; MEASURING; MEASURING DISTANCES, LEVELS OR BEARINGS; NAVIGATION; PHOTOGRAMMETRY OR VIDEOGRAMMETRY; PHYSICS; SURVEYING; TESTING

The utility model relates to a protection device and a protection system, and the protection device comprises a protection cover which is provided with an accommodation cavity and an observation opening, which are communicated with each other; the driving mechanism is arranged on one side of the protective cover; the cover is in driving connection with the driving mechanism and is movably arrangedon the protective cover, and the cover can be matched with the observation opening in an opening and closing mode. When the working environment is poor (such as moisture, multiple layers and the like); the driving mechanism can drive the cover to move again to seal the observation opening, and at the moment, the total station can be stored in the containing cavity in the closed state, so that thetotal station is prevented from being affected and damaged by damp, dusty and other severe environments, the service life of the total station is guaranteed, frequent cleaning and maintenance causedby dust accumulation are av