| 摘要 |
A crib frame includes a lower chassis, an upper chassis, a connecting chassis that connects the lower chassis and upper chassis, and a driving mechanism. The connecting chassis includes a first supporting chassis and a second supporting chassis. The driving mechanism includes an electric motor and an actuator. The first supporting chassis and the second supporting chassis are connected in an“X”shape. One end of the actuator is connected to the first supporting chassis and the other end is connected to the bottom chassis and arranged to control the height of the upper chassis relative to the lower chassis.
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