Grouting device based on tunnel crack repairing

The utility model discloses a grouting device based on tunnel crack repair, which comprises a grouting machine body, the lower end of the grouting machine body is fixedly connected with a slurry suction pipe, the middle upper part of the left side of the slurry suction pipe is fixedly connected with a flow guide pipe communicated with the slurry suction pipe, and the periphery of the middle upper part of the slurry suction pipe is fixedly connected to the inner periphery of the middle part of a cover plate. A first air cylinder is fixedly connected to the middle of the left side of the inner wall of the cover plate, a second air cylinder is fixedly connected to the middle of the right side of the inner wall of the cover plate, a storage bin is arranged on the inner side of the lower end of the cover plate, a driving bin is fixedly connected to the lower end of the storage bin, and a motor is fixedly connected to the middle of the lower end in the driving bin. The device can be operated by one person, output o