Overturning device and cooling fan

Abstract

The invention relates to the technical field of cooling fans, in particular to an overturning device and a cooling fan. According to the overturning device and the cooling fan, after a wet curtain istaken out, a driving piece is used for driving an overturning piece to rotate clockwise, so that a second through hole is driven to move in the direction staggered with a first through hole until thefirst through hole and the second through hole are staggered, namely, the position, directly facing the overturning piece, of the second through hole is a non-through hole, and therefore a drainage hole is closed, water flow is further prevented from flowing to the bottom of the cooling fan through the second through hole, noise caused by water flow falling is avoided, and accordingly user experience is improved; and oppositely, after the wet curtain is installed, the driving piece is used again for driving the overturning piece to rotate anticlockwise, so that the second through hole is driven to move in the direction overlapped with the first through hole until the first through hole communicates with the second through hole, and therefore the drainage hole is opened, it is guaranteed that water flow flowing out of the drainage hole can flow to the wet curtain through the first through hole and the second through hole in sequence, and accordingly wetting effects of the wet curtain isguaranteed.

Description

technical field

[0001] The invention relates to the technical field of cooling fans, in particular to a turning device and a cooling fan. Background technique

[0002] Evaporative cooling fan (also known as "air conditioning fan") is a system that uses the principle of water evaporation to ventilate, humidify, and cool indoor air. It generally includes an upper water tank, a lower water tank, a water pump, a wet curtain, a fan, and an air inlet Air outlet, air outlet and other components. When the air-conditioning fan is working, the air in the environment is sucked into the air-conditioning fan. When the air flows through the porous and moist wet curtain, a large amount of water on the surface of the wet curtain evaporates, and the heat reflected by the temperature in the air is converted into evaporative heat dissipation, thereby reducing The temperature of the air itself, the air-conditioning fan will introduce the cold air cooled by the wet curtain into the room, so as ...

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