Strap box for water conservancy and hydropower engineering investigation

The utility model belongs to the field of water conservancy and hydropower engineering auxiliary investigation, and particularly relates to a strap box for water conservancy and hydropower engineering investigation, which comprises a box body and an internal damping mechanism arranged in the box body. The internal damping mechanism comprises a first pressure spring, the first pressure spring is arranged in the box body and located at the bottom end, a damping plate is arranged above the first pressure spring, a guide column is arranged below the damping plate and located in the first pressure spring, and a sliding groove is formed in the upper portion of the damping plate. Four fixing plates are arranged above the damping plate and located in the sliding groove and are distributed in a quadrilateral mode, every two adjacent fixing plates are perpendicular to each other, second wedge blocks are arranged outside the fixing plates, and second pressure springs are arranged on the two sides of the second wedge blo