Cooling liquid supply assembly, cooling assembly and outdoor shielding tool

The utility model discloses a cooling liquid supply assembly, a cooling assembly and an outdoor shielding tool, and relates to the field of outdoor articles. The cooling liquid supply assembly comprises a storage tank and a speed control device. The speed control device is provided with an inner cavity for dispersing the cooling liquid, and is also provided with an output port for outputting the cooling liquid in the inner cavity to the outside, and a pressure regulating port for communicating the inner cavity with the outside atmosphere to balance the pressure in the inner cavity. A liquid outlet of the storage tank is communicated with the inner cavity and extends towards the bottom of the inner cavity, and the height value of the liquid outlet relative to the bottom of the inner cavityis larger than that of the output port relative to the bottom of the inner cavity. And in at least one working state, the flow area of the output port is smaller than that of the liquid outlet. Cooling liquid can be continuou