Abstract: A swing apparatus for children and an oscillating device used in combination with a swing apparatus according to the present invention are aimed to solve the problems such as the motor is damaged due to overloaded current and a sitting device in the swing apparatus is stopped on a higher place when electric power is suddenly cut off. The oscillating device includes a base, a driving assembly mounted to the base, a first friction piece connected to the driving assembly, a second friction piece operatably driven by the first friction piece depending a friction force therebetween, an elastic piece urging against one of the first friction piece and the second friction piece, a first shaft passing through the transmitting assembly, and an output member cooperated by one of the first shaft and the second friction piece. The swing apparatus includes a first frame supported on the ground, a second frame in which the sitting device is mounted, and the oscillating device connecting the first frame to the second frame.

Abstract: A locking device for a stroller is provided. The stroller includes a pair of side frames and a base frame. The locking device comprises an articulated mechanism pivotally connected between the respective rear frames of the pair of side frames, a locking member slidably provided on the articulated mechanism for locking the articulated mechanism, and a pair of side braces pivotally connected to the locking member at one end thereof respectively and pivotally connected to the respective rear frames of the pair of side frames at the other end thereof. The folding and unfolding of the stroller can be easily carried out by means of the locking device.