Abstract: A centering-rotary positioning automatic closing device includes a sliding rail installed on a fixed rail in a sliding from; wherein a guiding holder is mounted on a bottom of the fixed rail; a guiding part is mounted on the guiding holder along a sliding direction of the sliding rail; a sliding block is installed on the guiding part of the guiding holder and the guiding holder is connected to the sliding block through a spring; the guiding part has a guiding slot; a centering boss and a rotary boss are provided on a bottom of a bottom plate of a toggle block; the centering boss passes through a fixing hole of the sliding block, and the rotary boss passes through a rotary slot of the sliding block and extends into the guiding slot; a front end of the guiding slot has a positioning slot communicating with the guiding slot.

Abstract: A centering-rotary positioning automatic closing device includes a sliding rail is installed on a fixed rail in a sliding from; wherein a guiding holder is mounted on a bottom of the fixed rail; a guiding part is mounted on the guiding holder along a sliding direction of the sliding rail; a sliding block is installed on the guiding part of the guiding holder and the guiding holder is connected to the sliding block through a spring; the guiding part has a guiding slot; a centering boss and a rotary boss are provided on a bottom of a bottom plate of a toggle block; the centering boss passes through a fixing hole of the sliding block, and the rotary boss passes through a rotary slot of the sliding block and extends into the guiding slot; a front end of the guiding slot has a positioning slot communicating with the guiding slot.