The present invention relates to a single power controlled reclining relaxation, sitting, and standing device, which comprises a moving structure, a power portion, a sitting structure, a footrest structure, and a backrest structure. The moving structure comprises a pair of front wheels, a pair of rear wheels, and a pair of limiting levers. The power portion is disposed between the front and rear wheels of the moving structure and has a transmission terminal for outward driving. The sitting structure is located between the front and rear wheels and configured with a seat capable of sliding and rotating relative to the moving structure. The footrest structure has a pedal and is linked with the seat and capable of relative rotating. The backrest structure has a backrest plate pivoted with the seat and the limiting levers and is linked with the seat and capable of relative rotating. Accordingly, the present invention may achieve the advantages of having functions of reclining relaxation, sitting, and standing, single power portion with lower cost, fully automated design for simple operation, robust structure, being stable due to center of gravity located between front and rear wheels, and humanized angle change.本發明係有關一種單一動力控制後傾舒壓、坐及站之裝置,其包括一行動結構、一動力部、一乘坐結構、一腳踏結構與一背靠結構。行動結構包括一對前輪、一對後輪與一對限制桿。動力部設於行動結構的前、後輪之間,並具有一傳動端部可對外驅動。乘坐結構於前、後輪之間,設一可與行動結構相對滑動與轉動之座椅。腳踏結構具有一踏板,其受座椅連動並可相對轉動。背靠結構具有一背靠板,樞接於座椅與限制桿,受座椅連動並可相對轉動。故,本案兼具同時具備後傾舒壓、坐姿及站姿功能、單一動力部成本較低、全自動化設計操作簡單、結構牢固、重心位於前後輪之間相當平穩,與人性化的角度變化等優點。10‧‧‧行動結構11‧‧‧主架11A‧‧‧前端11B‧‧‧後端12‧‧‧前輪13‧‧‧後輪14‧‧‧樞接架15‧‧‧滑動圓桿16‧‧‧限制桿20‧‧‧動力部21‧‧‧固定端部22‧‧‧傳動端部30‧‧‧乘坐結構31‧‧‧座椅32‧‧‧乘坐第一樞接部33‧‧‧乘坐第二樞接部34‧‧‧乘坐第三樞接部35‧‧‧滑動部351‧‧‧橫桿352‧‧‧滑塊40‧‧‧腳踏結構41‧‧‧踏板42‧‧‧腳踏樞接部43‧‧‧連動桿50‧‧‧背靠結構51‧‧‧背靠板52‧‧‧扶持件53‧‧‧背靠第一樞接部54‧‧‧背靠第二樞接部55‧‧‧背靠第三樞接部
