Municipal road and bridge surface spraying maintenance device

The utility model discloses a municipal road and bridge surface spraying maintenance device, which relates to the field of maintenance devices, and comprises a carrier, a storage barrel, a pressure pump and a spray pipe, and the storage barrel and the pressure pump are sequentially mounted at the top of the carrier along the horizontal direction. Through the arrangement of the cross-shaped supporting frame, the fixing block, the fan-shaped blocks, the clamping block, the motor, the rotating disc, the sliding rod, the rotating pin, a limiting groove, a limiting block, a limiting hole, a spring, a fixing ring, a pull rod, a connecting rod, a guide wheel and a tension spring, when operation is conducted on a wide-range flat road surface, a spraying pipe is clamped on the clamping block, the motor is started, the motor drives the rotating disc to rotate, and the rotating pin can rotate along with the rotating disc; and meanwhile, a rotating pin can drive a fan-shaped block to rotate back and forth through a slidi