Patent ID: 8365362

Claim:
A safety release device for Roman blind pull cord, the safety release device being disposed between the pull cord of the Roman blind and a lower suspension of the Roman blind, the safety release device comprising: a latch body having a cord retainer body and a ball latch body downward extending from a lower side of the cord retainer body, the cord retainer body being a hollow body, an upper end of the cord retainer body being formed with a perforation for the pull cord to extend through the perforation and connect with the cord retainer body, whereby the pull cord is hidden in the cord retainer body; a connection barrel, which is a hollow body having an interior spherical socket, an upper end of the connection barrel being formed with a circular through hole in communication with the spherical socket, two opposite sides of the connection barrel being respectively formed with at least two elliptic escape holes in communication with the spherical socket, a split being formed on an upper side of each elliptic escape hole, the split extending from the elliptic escape hole to the upper end face of the connection barrel, whereby the ball latch body of the latch body can be correspondingly plugged into the spherical socket of the connection barrel or extracted out of the spherical socket; and a double latch ring seat, which can be latched with the connection barrel and connected with the lower suspension of the Roman blind, the double latch ring seat including a disc-shaped main body, a pair of latch arms disposed on the disc-shaped main body in parallel to each other, and a latch ring body downward extending from a lower end of the disc-shaped main body, the latch ring body being connected with the lower suspension of the Roman blind via a movable ring.