Chest abdomen fixed band that undershirt formula is adjustable

The utility model provides a chest abdomen fixed band that undershirt formula is adjustable, including preceding undershirt, back undershirt and the connecting piece around that links to each other preceding undershirt and back undershirt, the inboard of preceding undershirt is equipped with the blotter, the inboard of back undershirt is equipped with the cushion, the front and back connecting piece is including back undershirt connecting band, connecting piece and preceding undershirt fixed strip, position under the rib of back undershirt is sewed up to the one end of back undershirt connecting band, and the other end links to each other with the connecting piece, preceding undershirt fixed strip is sewed up in the front side of preceding undershirt, position under two side rib of undershirt before its both ends lie in respectively to its both sides along length direction are equipped with the spacing groove, the connecting piece is including handheld frame, lead screw, slide bar, fixed clamping bar and spac