This utility model discloses a driver's cab side
window opening and closing device, including a
handle mechanism hinged to the side window and a limiting mechanism fixed to the driver's cab pillar. The side window rotates to open and close in the vertical direction. The
handle mechanism has a sliding groove, with a first limiting part at one end near the
hinge point of the groove and a second limiting part at the other end away from the
hinge point. The limiting mechanism is disposed within the groove and is slidably connected to it. After the
handle mechanism rotates in the vertical direction around the
hinge point, the limiting mechanism moves along the groove into the second limiting part. After the handle mechanism rotates in the opposite direction around the hinge point back to its original vertical position, the limiting mechanism moves along the groove into the first limiting part. Through the coordinated design of the rotating side
window opening and closing mechanism, the handle mechanism, and the limiting mechanism,
airflow is ensured while achieving dual locking of the opening angle and
closed state. This overcomes the sealing failure problem caused by window displacement under vibration, and the limiting mechanism prevents collision interference with the outside environment, improving safety.