Damping device for laying towed long linear array at low speed

The invention belongs to the technical field of acoustic detection equipment, particularly relates to a damping device for laying a towed long linear array at a low speed. The damping device comprisesa polygonal umbrella cloth (1), a plurality of umbrella bone support rods (2), a plurality of rotating shafts (3), a plurality of telescopic springs (9), an umbrella body (4), a plurality of pressingplates (5) and a lifting eye screw (10). With the center of the polygonal umbrella cloth (1) as the center of a cone bottom, umbrella bone support rods (2) are placed on the polygonal umbrella cloth(1) along the radius direction to each corner of a polygon. One end of each umbrella bone support rod (2) is fixed on the umbrella body (4), and the other end is fixed on the polygonal umbrella cloth(1). One end of each telescopic spring (9) is fixed on each umbrella bone support rod (2), the other end is fixed on the umbrella body (4), and a reversible polygonal umbrella structure is formed. Each pressing plate (5) is corr