Line brushing machine for roads and bridges

The invention discloses a line brushing machine for roads and bridges. The line brushing machine comprises a feeding bucket. A material taking roller is rotationally connected to the inside of the feeding bucket. An avoiding notch is provided in the upper end of the front end surface of the feeding bucket. The lower end of the front side surface of the feeding bucket is fixedly connected with a second support. A line brushing roller is rotatably connected to the inside of the second support. A groove is arranged in the rear side of the upper surface of the second support. The inner bottom surface of the groove is provided with an adjustment slot. A threaded rod is slidably connected to the inside of the adjustment slot. The lower end of the outer surface of the threaded rod is connected with a nut through threads. The upper end of the outer surface of the threaded rod is slidably sleeved with a supporting spring. The upper surface of the threaded rod is fixedly connected with a third support. An intermediate