Patent ID: 7934731

Claim:
A braking device for a playard that has a standing post, the braking device comprising: a seat mounted at the bottom end of the standing post, a wheel of the playard being rotatably connected to the seat; a first elastic element; an engaging unit mounted at the seat and capable of moving between a releasing position and a braking position relative to the seat, the engaging unit comprising: a slider movably mounted at the seat and capable of moving along a first direction relative to the seat, the first elastic element configured between the slider and the seat; and a braking pin movably mounted at the seat and capable of moving along a second direction relative to the seat, one end of the braking pin abutting against the slider when the slider moves along the first direction, and the braking pin is brought to move along the second direction by the slider; a control unit configured at a place of the playard remote from the seat and selectively set in an unlocking position or a locking position; and a linking unit passing through the standing post of the playard and connecting to the engaging unit and the control unit with its two ends respectively; wherein when the control unit is moved to the locking position, the engaging unit is brought to the braking position for engaging with the wheel via the linking unit; when the control unit is moved to the unlocking position, the engaging unit is brought to the releasing position for disengaging from the wheel via the linking unit.