Tilt sliding assisting device

The utility model discloses a latch bolt sliding assisting device which comprises a lock box, a latch bolt mechanism and a rolling piece. The latch bolt mechanism comprises a latch bolt, a latch bolthole for the latch bolt to penetrate through penetrates through a side plate of the lock box, the rolling piece is rotationally connected with the latch bolt mechanism and matched with the lock box ina rolling mode, and when the latch bolt moves back and forth along the latch bolt hole, the rolling piece is connected with the lock box in a rolling mode. The anti-theft lock has the advantages thatwhen the latch bolt shrinks into the lock box, the rolling piece is in rolling fit with the lock box, friction between the latch bolt and the lock box is reduced, and unlocking is convenient; when the latch bolt extends out of the lock box, the rolling piece is in rolling fit with the lock box, friction between the latch bolt and the lock box is reduced, and locking is facilitated; due to the fact that the rolling piece is