This creation is a kind of related foldable wheelchair frame structure of what,This creation wheelchair frame system's what two sides be equipped with to referred to as backboard,Joint seat,Seat board,Bottom plate,The components such as stiffening plate and armrest cover,It consolidates what joint seat upper end to referred to as backboard bottom end system pivot,And each seat board system is linked with the first pivoting point of upper end and joint seat,And the gag lever post of back rest is enabled to wear in the long arc slot of what armrest cover,And backboard Hou end system is linked with the 5th pivoting point and seat board,Multiple what seat board lower end is linked with the second pivoting point and bottom plate upper end,And seat board opens up a limit arc slot,And the second pivoting point of what offers first positioning hole and second location hole in place up and down,And stiffening plate one end system is solid with third pivoting point and joint seat pivot,Another end system is solid with the 4th pivot solid point and bottom plate lower end pivot,Multiple what bottom plate upper end spiral shell solid one wears the Limit screw in what seat board limit arc slot,And bottom plate upper end is additionally provided with positioning seat,And a latch held by spring top is equipped in each positioning seat,And be to be linked between what relative positioning seat limited block with a tricing line,And the lower end between two seat boards is equipped with handle,Thereby structure can allow user that can quickly open or the person that folds wheelchair frame.本創作係有關於一種折疊式輪椅架結構，本創作輪椅架係於兩側設有對稱之靠背板、連結座、座墊板、底板、補強板及扶手罩等構件，其對稱之靠背板底端係樞固於連結座上端，且各座墊板係以上端與連結座之第一樞接點連結，並令靠背架之限位桿穿設於扶手罩之長弧槽內，而靠背板後端係以第五樞接點與座墊板連結，復於座墊板下端以第二樞接點與底板上端連結，而座墊板開設一限位弧槽，並於第二樞接點上下處開設有第一定位孔及第二定位孔，而補強板一端係以第三樞接點與連結座樞固，另端係以第四樞固點與底板下端樞固，復於底板上端螺固一穿設於座墊板限位弧槽內之限位螺桿，且底板上端另設有定位座，而各定位座內設有一受彈簧頂持之插梢，並於相對定位座限位塊間係以一控制繩連結，而兩座墊板間之下端設有把手，藉此結構可讓使用者可快速張開或收合輪椅架者。
