Fixing device of strain sensor in bridge monitoring

The utility model discloses a fixing device for a strain sensor in bridge monitoring, which comprises an L-shaped connector, a supporting rod and a protection box, a circular through hole is arranged on the side wall of the protection box, the strain sensor is arranged in the protection box, one end of the L-shaped connector is connected with the supporting rod, the L-shaped connector is connected with the side wall of the protection box through the circular through hole, and the other end of the L-shaped connector is connected with the protection box through the supporting rod. The connector, the supporting rod and the protection box are communicated. A measuring and reading wire of the strain sensor extends to the control terminal through the circular through hole, the L-shaped connector and the supporting rod. The fixing and protecting device of the strain sensor is favorable for solving the problem that the temperature or strain in the bottom plate concrete of a large-span box type bridge structure is dif