Light-emitting warning lamp for road and bridge construction

The utility model discloses a road and bridge construction light-emitting warning lamp which comprises a base, the top of the base is fixedly connected with a sleeve, the top of the sleeve is provided with a transparent lampshade, and an illuminating lamp is arranged in the transparent lampshade. The driving bevel gear is rotated through the motor to enable the driven bevel gear and the screw rod to rotate, so that the threaded sleeve does linear motion, the height of the warning lamp is increased, when the warning lamp needs to be carried, the warning lamp can be moved through the universal wheels, the universal wheels can extrude the transverse plate when encountering a bumpy road section in the moving process, and therefore the warning lamp is convenient to carry. And the transverse plate extrudes the spring through the movable rod and the sliding plate, and the extrusion force is offset through the resilience force of the spring, so that the warning lamp is damped, and the luminous warning lamp for road a