Novel polyurethane sound barrier structure

The utility model relates to the technical field of polyurethane sound barrier structures, and discloses a novel polyurethane sound barrier structure which comprises a base. The outer frame is clamped at the top of the base; the sound barrier main body is arranged on the inner side of the outer frame; the mounting assembly comprises a first mounting part, a limiting part and a second mounting part, the first mounting part is located on the base and the outer frame, a moving rod and a positioning hole are arranged to mount the outer frame and the base together, and a spring and a limiting plate are arranged to enable the spring to push the limiting plate to move towards the outer frame; a limiting plate can drive a Z-shaped plate to move when moving, then a second connecting plate is driven to move, the second connecting plate moves to drive a limiting sleeve to move, the limiting sleeve is made to block the front face of a first connecting plate, and the situation that the first connecting plate moves to driv