Wind direction measuring device for sports events

The utility model discloses a wind direction measuring device for sports events. The wind direction measuring device comprises a supporting device, a vertical rod, a rotating seat and a wind indicator. The supporting device with two placing modes is arranged, different placing scenes can be flexibly coped with, the beach folding device can be used on a soft beach and a hard ground, the beach folding device can be inserted into the beach by controlling the limiting inserting rod to move downwards, and meanwhile the supporting device can be conveniently placed on the soft beach or the hard ground. Sand or a water source can be input into the assembly body, the weight of the assembly body can be increased, so that the device is higher in vertical stability and not prone to being influenced by external force, by arranging an adjusting piece, closure and rapid discharging of a discharging port are conveniently controlled, and by outwards rotating a limiting seat and pulling a connecting rod to move outwards while