The design is a wheelchair lumbar structure.The wheelchair is equipped with left.Right side frame.The left,The right side frame is provided with a connecting device.And the left.A wheel body is arranged under the right frame.Set left,Right sitting pole,Left,Right back pole,Left,Right handrail,On the left side,Right sitting,The back bar is respectively provided with a seat.Back cushionAnd the left.A lumbar support device is arranged in front of the right back bar.The lumbar support device is provided with two joints.Zone bodyThe two joints are respectively arranged on the left.Right back bar front position,And the belt body is made of soft bendable material.And the two sides are respectively connected with the two joints.And the belt body is positioned in front of the back cushion corresponding to the waist position of the human body and is appropriately spaced from the surface of the back cushion；With this creation, you can have better ride support comfort.It can be unfolded or folded with wheelchair.本創作係一種輪椅腰靠結構，該輪椅具左、右側架，該左、右側架間設置連結裝置，又該左、右側架下方設置輪體，上方設置左、右坐桿、左、右背桿、左、右扶手，並於左、右坐、背桿上分別設置坐、背墊，又該左、右背桿前方設置腰靠裝置，該腰靠裝置具二接合件、一帶體，該二接合件分別設於左、右背桿前方位置，又該帶體由軟質可彎曲材料製造，並二側分別與二接合件接合，並使帶體位於背墊前方對應人體腰部位置且與背墊表面具適當間距；藉此本創作可具較佳乘坐支撐舒適性，並可配合輪椅展開或折合。
