| 摘要 |
A frame folding mechanism comprises a frame (100). The frame (100) comprises a fixing shell (1), a sliding assembly (200), a front linkage rod (3), a rear linkage rod (4), an insertion rod (5), a seat (6), a front beam (7) and a rear beam (8). The upper end of the front beam (7) and the upper end of the rear beam (8) are spaced from each other, and are respectively hinge-connected to the fixing shell (1). The sliding assembly (200) is in vertical slidable fit with the fixing shell (1). The sliding assembly (200) is located between the upper end of the front beam (7) and the upper end of the rear beam (8). One end of the front linkage rod (3) and one end of the rear linkage rod (4) are respectively hinge-connected to the lower end of the sliding assembly (200). The other end of the front linkage rod (3) is hinge-connected to the front beam (7). The other end of the rear linkage rod (4) is hinge-connected to the rear beam (8). One end of the insertion rod (5) is hinge-connected to the upper end of the sliding assembly (200). The other end of the insertion rod (5) is hinge-connected to the seat (6). The upper end of the rear beam (8) is provided with a support part (81) for supporting the insertion rod (5). The sliding assembly (200) is provided with a slot (21) where the insertion rod (5) is inserted. By means of the mechanism, convenient and rapid frame folding is realized, and the frame is small in size after being folded and is good in stability after being unfolded. |
