Cab stabilizing device

The utility model relates to a cab stabilizing device which is characterized in that a second reversing valve is operated to be located at a station where oil enters from a port A and exits from a port B during driving, and when a piston in a lifting oil cylinder moves towards a rodless cavity along with a cab, part of oil in the rodless cavity of the lifting oil cylinder flows out of a cylinder body and flows to a rod cavity; at the moment, the first one-way valve is opened due to positive pressure of oil of the second hydraulic control pipe, so that redundant oil can be discharged; when a piston in the lifting oil cylinder moves towards a rod cavity along with a cab, oil in the rod cavity of the lifting oil cylinder flows back to a rodless cavity, meanwhile, the pressure reduction effect of the throttling valve ensures that the first reversing valve is kept at a normal position, and the rodless cavity of the lifting oil cylinder supplements part of oil from an oil pool due to negative pressure. In this way,