Concrete power saw

The utility model discloses a concrete power saw has solved joint -cutting in -process workman generally according to the work experience judgment joint -cutting degree of depth, and the misjudgment causes the problem that the cutting depth is more shallow easily, and its technical scheme main points are, which comprises a frame, the frame bottom is provided with the walking wheel, the frame frontend is provided with joint -cutting blade and drive joint -cutting blade pivoted motor, it establishes to be provided with the cover in the frame the safety cover at joint -cutting blade top, be provided with the body of rod on the safety cover, body of rod bottom is higher than the bottom of joint -cutting blade, the body of rod with joint -cutting blade bottom exists follows the difference in height of bracket height direction has reached and has judged simultaneously at the joint -cutting whether the seam degree of depth meets the requirements, reduces the number of times of repetition joint -cutting, simplified o