Limiting structure for limiting swing angle of fog gun and fog gun

The utility model relates to the technical field of spraying devices, in particular to a limiting structure used for limiting the swing angle of a fog gun and the fog gun, the limiting structure comprises two position detection switches, each position detection switch comprises a detection end, and the position detection switches are used for being installed on an installation base. The limiting mechanism further comprises a rotating component which is installed on the rotating shaft and rotates synchronously with the rotating shaft. The rotating component is provided with two triggering pieces used for triggering the detection end of the position detection switch. The two triggering pieces are located on the same circumference with the axis of the rotating shaft as the center. The positions of the two triggering pieces can be adjusted in the circumferential direction of the circumference. The horizontal swing angle of the wind barrel can be adjusted only by adjusting the positions of the two triggering piece