The structure of a ladder chair is improved,It includes: a ladder chair body,It is mainly composed of a chair assembly and a track assembly,The seat assembly is mainly equipped with a seating area,A foot pedal and a front wheel of the seat are arranged at the lower end of the front of the riding area,Two sides of the seat assembly are respectively provided with a connecting part,The front center of the track assembly is provided with a pair of connecting seats,The connecting base can be used for connecting the connecting part,Through locking with a locking member,The seat assembly and track assembly can be fixedAnd detaching for folding,An auxiliary rod is arranged at the center of the lower part of the seat area, which can strengthen the structural strength of the seat assembly,An auxiliary wheel is arranged on the auxiliary rod,It can cooperate with the track assembly to form a shorter track width,The ladder chair body enables the helper to operate conveniently in a narrow space.一種爬梯椅結構改良，其包含有：一爬梯椅本體，主要係由一坐椅總成和一履帶總成所組成，坐椅總成主要設有乘坐區，且乘坐區之前方下端處設有腳踏板與坐椅前輪，該坐椅總成兩側各設置有一連結部，而該履帶總成前方中央處設有一對連結座，此連結座能供連結部插接後，配合一鎖定件貫穿鎖合，讓坐椅總成與履帶總成能進行固定、以及拆離進行收摺，且乘坐區位於下方中央處設有一輔助桿能強化該坐椅總成的結構強度，並於輔助桿設置有一輔助輪，能配合履帶總成形成更短輪距，使該爬梯椅本體能讓協助者於窄小空間更為方便進行操控。
