Half-supporting sill mechanism

The utility model provides a half-supporting sill mechanism which comprises a bent supporting plate, a protruding strip is fixedly connected to the top of the bent supporting plate, a plurality of grooves are formed in the top of the protruding strip from front to back, and a sill body is arranged outside the protruding strip and located on the top of the bent supporting plate in a sleeved mode. And a plurality of convex blocks are uniformly arranged at the bottom of the inner wall of the sill main body from front to back through pouring. Compared with the prior art, the elevator sill has the following beneficial effects that the bent supporting plate is fixed on the inner wall of the elevator shaft through the installation bolts penetrating through the third threaded holes; then the sill body is arranged outside the protruding strip in a sleeving mode, located at the top of the bent supporting plate and preliminarily fixed, and the sill body is pushed left and right to be debugged, so that the protruding blo