An improved barrel frame structure of a potty chair is provided on the front and rear connecting rods arranged transversely below the front and rear leg frames of the potty chair. The barrel frame includes left and right support tubes that are straight and relatively parallel. The distance between the left and right support tubes can be used for receiving a potty, and the two ends of the left and right support tubes respectively have curved fixing sections corresponding to and fixedly connected to the tops of the front and rear links of the potty chair, respectively. The segment has a curved range, which is the same curved shape as the front and rear links of the potty chair, so that the curved fixed segments can fully fit the curved curvature of the front and rear links to fit tightly on the potty chair. Where the top and bottom of the front and rear links overlap. In this way, this creation is completely barrier-free 100% conversion between changing the bedpan and bathing without moving the person being cared for. The main purpose is to not move the elders or users with mobility problems. And take the dirt for smoother and safer subsequent cleaning.一種便盆椅之桶架改良結構，係於便盆椅的前、後腳架下方橫向設置的前、後連桿上設置桶架，該桶架包括各呈直條且相對平行的左、右支撐管，該左、右支撐管間距可供承置便盆，且該左、右支撐管兩端分別具有相對應並分別固定連接在該便盆椅的前、後連桿頂端的彎曲固定段，該些彎曲固定段具有一彎曲範圍，該彎曲範圍係與便盆椅的前、後連桿成相同彎曲形狀，令該些彎曲固定段可充分配合前、後連桿之彎曲弧度緊密的貼合固定在便盆椅的前、後連桿頂端交叉重疊處。藉此，本創作在轉換便盆與洗澡之間，完全是無障礙100%轉換，又不需移動被照顧者，能達到以不移動長者或是行動不便使用者為最主要目的，透過能不移動而拿取污物，以便做後續清潔更為順暢及安全。
