Abstract: A pushing sitting device includes a main base, at least one set of pushing arms are provided on the side surface of the main base. The pushing arm includes a bi-parallelogram, having a first parallelogram structure and a second parallelogram structure. The first parallelogram structure includes a front arm, a detector assembly, an assisting arm and the main base, wherein the front arm is connected to the detector assembly and the main base respectively through joint pins at two ends, while the assisting arm is connected to the detector assembly and the main base respectively through the rotating shafts at two ends. The second parallelogram includes a rear arm, the detector assembly, a nonporous assisting arm and the main base which are connected in sequence by connecting shaft.

Abstract: A pushing sitting device includes a main base, at least one set of pushing arms are provided on the side surface of the main base. The pushing arm includes a bi-parallelogram, having a first parallelogram structure and a second parallelogram structure. The first parallelogram structure includes a front arm, a detector assembly, an assisting arm and the main base, wherein the front arm is connected to the detector assembly and the main base respectively through joint pins at two ends, while the assisting arm is connected to the detector assembly and the main base respectively through the rotating shafts at two ends. The second parallelogram includes a rear arm, the detector assembly, a nonporous assisting arm and the main base which are connected in sequence by connecting shaft.