Nail abutting seat with replaceable olecranon head for anastomat

The utility model discloses a nail propping seat with a replaceable olecranon head for an anastomat. The nail propping seat comprises a main body, a head part and a connecting block, wherein one end part of the main body is provided with an assembly hole, the left side end of the main body is provided with a left clamping groove communicated with the assembly hole, and the right side end of the main body is provided with a right clamping groove communicated with the assembly hole; the head part is connected with the connecting block; the connecting block is suitable for being inserted into the assembling hole so that the head can be connected to the body. The left side end of the connecting block is elastically connected with a left clamp which is suitable for being clamped into the left clamping groove to limit the connecting block in the assembling hole when the connecting block is inserted in the assembling hole in place. The right side end of the connecting block is elastically connected with a right clam