Throttle valve, shock absorber and vehicle

The utility model provides a throttling valve, a shock absorber and a vehicle, and belongs to the technical field of vehicles, and the throttling valve comprises a main valve assembly and a pilot assembly arranged on the main valve assembly. The main valve assembly comprises a main valve body, a valve seat and a main valve element, a throttling opening is formed between the main valve element and the valve seat, and a pressure cavity is defined by the main valve element and the cavity wall of the first containing cavity. The pressure cavity is provided with the pressure relief opening, the pressure relief pressure of the pressure relief opening can be adjusted through the pilot assembly to change the cavity pressure of the pressure cavity, and then the main valve element is driven to move so as to change the flow area of the throttling opening. By means of the pressure relief opening formed in the main valve body, the cavity pressure of the pressure cavity is the minimum cavity pressure before adjustment of t