Lining maintenance equipment for roads, bridges and tunnels

The invention discloses road, bridge and tunnel lining maintenance equipment, and belongs to the field of lining maintenance, the road, bridge and tunnel lining maintenance equipment comprises a base, rollers are arranged at four corners of the base, a clamping belt is fixedly connected to the right side of the base, a water bucket is fixedly connected to the interior of the clamping belt, a nozzle is arranged at the upper end of the base and is used for atomizing and spraying liquid, and a telescopic swing mechanism is arranged at the upper end of the base. The telescopic swing mechanism comprises a motor fixedly connected to the rear end of the base, and the output end of the motor is fixedly connected with a first reciprocating wire. The device can drive the gear to swing back and forth through the toothed bar during working, so that the multi-section liquid rod can swing and spray the inner wall of a tunnel back and forth during working, the spraying effect is improved, meanwhile, needed manpower is saved