The invention provides an automatic
window opening and unlocking device for vehicles falling into water and rolling over. The automatic
window opening and unlocking device comprises a first detection
assembly and a second detection
assembly, when the vehicles incline and
fall into water, due to the fact that a first limiting cylinder is kept vertically downward, the inner wall of the first limiting cylinder cannot block a
buoyancy piece, and the floating speed of the
buoyancy piece is high. A first change-over switch can be quickly driven to act, and therefore the time for opening a vehicle window and unlocking a vehicle door is shortened, and personnel escape is facilitated. In addition, when the vehicles
fall into water vertically, due to the fact that the first limiting cylinder is still arranged vertically downwards, the
buoyancy piece can still float upwards, and compared with the prior art that the buoyancy piece does not act, the application range is widened, and reliability is improved. In conclusion, when the vehicles roll over or overturn on the
road surface, the second detection
assembly can conduct control to achieve automatic
window opening and unlocking. When the vehicles roll over and
fall into water, the first detection assembly can conduct control to achieve automatic window opening and unlocking, and therefore automatic window opening and unlocking can be achieved when the vehicles encounter various conditions, and personal safety is guaranteed.