Device of fixed extensometer

The utility model discloses a device of fixed extensometer, its characterized in that: including base, vertical pole, down tube and extensometer support, the base is magnetic base, the lower extreme of vertical pole is fixed on the base, the fixed wing section fastener in upper end of vertical pole, the wing section fastener can reciprocate on vertical pole, the down tube activity is fixed on the wing section fastener, and the down tube can around the wing section fastener at vertical rotation in surface, the other end at above -mentioned down tube is fixed to the extensometer support. The utility model discloses a magnetic base fixes whole device on ferromagnetic type of object, the height of rethread adjustment wing section fastener and the regulation of rotating down tube realization extensometer height and angle to the realization is accurate fixed to the extensometer, improves the orientation survey precision, has simple structure, convenient assembling, and the accurate advantage in location can realize