Engraving device for repairing texture of historic building wood structure

The utility model discloses an engraving device for repairing the texture of a wood structure of an ancient building. The engraving device comprises a fixing pipe, a protection mechanism, a connectingblock, a blade, a cavity and a knife sharpening mechanism. The utility model has the benefits as follows: the connecting blocks are fixed at the bottom ends of the four fixing pipes, and every two adjacent fixing pipes are connected through the corresponding connecting block, so that the fixing pipes are convenient to connect, the connection among the four fixing pipes is convenient for an engraver to hold during engraving, and the engraving is convenient; the connecting blocks are in threaded connection with the fixing pipes, so that connection between the fixing pipes is facilitated, and loosening between the fixing pipes is prevented; blades are fixed to the ends, away from the fixing pipes, of the connecting blocks, and the blades fixed to the four fixing pipes are different, so thatthe different blades are r