SAFETY BRAKING DEVICE FOR DOORS

摘要

A safety braking device (1) for doors, which is arranged between a door board (21) and a permanent seat (22) of the door board, comprising a seat body (11) and a one-way locking mechanism. The seat body (11) is arranged in the door board (21). The one-way locking mechanism comprises a lock position element (12) and a connecting rod element (13). The lock position element (12) is arranged in the seat body (11) and can be switched between a locked position and an unlocked position. One end of the connecting rod element (13) is fixed onto the permanent seat (22) of the door board, and the other end thereof extends into the seat body (11) and corresponds to the lock position element (12). When at the locked position, the lock position element (12) as well as the seat body (11) cannot move in a first direction (91) with respect to the connecting rod element (13), and therefore the door board (21) cannot be opened and can only be closed; and only when the lock position element (12) is at the unlocked position can the door board (21) be opened or closed.