A movable chair support structure comprising a movable mechanism, a fixing support structure and a chair support structure,
- wherein the movable mechanism comprises a transmission component and a movable component;
- the transmission component comprises a rotating arm, a first transmission rod, a second transmission rod, a third transmission rod and a fourth transmission rod, and the movable component comprises a first connecting rod, a second connecting rod, a third connecting rod, a fourth connecting rod and a fifth connecting rod;
- the chair support structure comprises a chair support portion, which has a length of 500 mm to 530 mm, and when the movable chair support structure is disposed on the ground, the chair support portion is inclined relative to a direction parallel to the ground;
- and
- the chair support portion is pivotally connected to the movable component, the movable component is pivotally connected to the fixing support structure, and the transmission component is pivotally connected to the chair support portion and the movable component, respectively;
- and the transmission component is capable of rotating relative to the chair support structure and driving the movable component to move, so as to adjust a position of the chair support structure relative to the fixing support structure, and,
- the rotating arm is pivotally connected to the chair support structure, and two ends of the rotating arm are pivotally connected to the first transmission rod and the second transmission rod, respectively;
- an end of the first transmission rod away from the rotating arm is pivotally connected to the movable component;
- an end of the second transmission rod away from the rotating arm is pivotally connected to the third transmission rod;
- an end of the fourth transmission rod is pivotally connected to the third transmission rod, and the other end of the fourth transmission rod is driving connected to a driving mechanism;
- two ends of the first connecting rod are pivotally connected to the fixing support structure and the second connecting rod, respectively;
- the first connecting rod is pivotally connected to the first transmission rod;
- two ends of the fifth connecting rod are pivotally connected to the fixing support structure and the fourth connecting rod, respectively;
- two ends of the third connecting rod are pivotally connected to the second connecting rod and the fourth connecting rod, respectively;
- the chair support portion is pivotally connected to the second connecting rod and the fourth connecting rod, respectively;
- the chair support portion, the second connecting rod, the third connecting rod and the fourth connecting rod define a first four-rod mechanism;
- and the first four-rod mechanism is capable of expanding or contracting to drive the chair support structure to move relative to the fixing support structure.