Abstract: A support connecting structure includes: a pivoting base; a pivoting arm, wherein a first end of the pivoting arm is connected to the pivoting base by a first pin shaft, and the first end of the pivoting arm comprises a first anti-rotation surface; and a locking member mounted to the pivoting base, the locking member being capable of moving in a direction parallel to an axis of the first pin shaft from a locked position to an unlocked position, and the locking member comprising a second anti-rotation surface; wherein when the locking member is at the locked position, the first anti-rotation surface abuts against the second anti-rotation surface, and when the locking member is at the unlocked position, the first anti-rotation surface is separated from the second anti-rotation surface.

Abstract: This application relates to a fastener, a fastener monitoring system, and a child carrier. The fastener includes a male buckle, a female buckle, and a control circuit. The fastener has a locked state in which the male buckle is snap-fitted to the female buckle and an unlocked state in which the male buckle is separated from the female buckle. The control circuit is disposed on the male buckle and/or the female buckle. The control circuit includes a wireless communication module. In response to the fastener being in the locked state, the control circuit controls the wireless communication module to transmit a wireless signal.

Abstract: The present application relates to a child carrier, which includes a seat, an impact shield, an adjustment mechanism, and an operating member. A seating space for accommodating a child is enclosed between the impact shield and the seat. The adjustment mechanism is disposed on a side of the impact shield. The operating member is connected to the adjustment mechanism. The operating member is configured to be operated to act on the adjustment mechanism to adjust a size of the seating space.

Abstract: This application relates to a fastener, a fastener monitoring system, and a child carrier. The fastener includes a male buckle, a female buckle, and a control circuit. The fastener has a locked state in which the male buckle is snap-fitted to the female buckle and an unlocked state in which the male buckle is separated from the female buckle. The control circuit is disposed on the male buckle and/or the female buckle. The control circuit includes a wireless communication module. In response to the fastener being in the locked state, the control circuit controls the wireless communication module to transmit a wireless signal.

Abstract: A support connecting structure includes: a pivoting base; a pivoting arm, wherein a first end of the pivoting arm is connected to the pivoting base by a first pin shaft, and the first end of the pivoting arm comprises a first anti-rotation surface; and a locking member mounted to the pivoting base, the locking member being capable of moving in a direction parallel to an axis of the first pin shaft from a locked position to an unlocked position, and the locking member comprising a second anti-rotation surface; wherein when the locking member is at the locked position, the first anti-rotation surface abuts against the second anti-rotation surface, and when the locking member is at the unlocked position, the first anti-rotation surface is separated from the second anti-rotation surface.