The present invention relates to a wheelchair pedal structure. A one-way angle adjustment group is arranged between the pedals. The one-way angle adjustment group is composed of a fixed plate, a ratchet wheel and a ratchet block, wherein the foot The pedal has a linkage shaft pivoted on the fixed plate, and the ratchet is fixed on the linkage shaft of the pedal, and the periphery of the ratchet wheel has a series of teeth, and the ratchet block is pivoted on the fixed plate , And the ratchet block has at least one ratchet that can be selectively unidirectionally engaged with the ratchet teeth, and one side of the ratchet block is provided with an elastic member, and the ratchet block can use the elastic force of the elastic member to keep the ratchet teeth engaged On the corresponding teeth of the ratchet wheel, or being pushed away to release the ratchet wheel teeth, the pedal can adjust the angle of the pedal, so it can further meet the needs of users to support the feet of different heights, and can use the feet to perform Lift up, retract, release or adjust the angle upwards without manual operation, so that neither the user or the caregiver needs to bend or squat down to complete, greatly reducing the burden on the operation such as joint wear, and more It can maintain hand hygiene and avoid the spread of germs.本發明係一種輪椅腳踏板結構，其係於腳踏板間設有一單向角度調節組，該單向角度調節組係由一固定板、一棘輪及一棘齒塊所構成，其中該腳踏板具有一樞設於固定板之連動軸桿，又該棘輪係固設於腳踏板之連動軸桿，再者該棘輪周緣具有系列嚙齒，而該棘齒塊係樞設於固定板上，且該棘齒塊具有至少一可與棘輪嚙齒選擇性單向咬合之棘齒，又該棘齒塊一側設有一彈性件，該棘齒塊可利用該彈性件的彈力使棘齒保持咬合於棘輪的對應嚙齒上、或被推開釋放棘輪嚙齒，藉此，使腳踏板能調整腳踏板的角度，因此進一步可以滿足使用者支撐腳部的不同高度需求，且可以利用腳部進行向上掀起收合、釋放或向上調整角度，而不需用手操作，如此不論是使用者或照護者均不需彎腰或蹲下即能完成，大幅減輕操作上的負擔如關節磨損，再者能保持手部衛生，避免病菌傳播。
