Roof fan with open-close type rainhats

Abstract

The invention discloses a roof fan with open-close type rainhats. The roof fan with the open-close type rainhats comprises a fan device, wherein the rainhats are arranged above the fan device; not less than two turnover mechanisms are uniformly arranged on the outer side of the fan device and comprise supports; the number of the rainhats is equal to the number of the turnover mechanisms; the bottom sides of the middle parts of the rainhats are fixedly connected to the top ends of fixed supports; each two adjacent rainhats are abutted against each other; telescopic rods are hinged to the top side of the fan device; one ends, far away from the fan device, of the telescopic rods are hinged to the middle parts of the rainhats; and control devices are arranged on the outer sides of the rainhatsand are electrically connected to the telescopic rods. According to the roof fan with the open-close type rainhats provided by the invention, the split type rainhats are provided so as to be freely adjusted and turned over, so that the convenience in installation and maintenance is greatly improved, and the convenience in transportation is further realized; and by utilizing the way of opening therainhats, the ventilation efficiency can be improved, the air volume is increased, and the roof fan with the open-close type rainhats is practical.

Description

technical field [0001] The invention relates to an air exhaust device, in particular to a rain cap opening and closing type roof fan. Background technique [0002] At present, roof fans are widely used in the field of industrial ventilation, and general factories can be equipped with various roof fans to realize the ventilation of factories. Usually, in order to protect the fan from being eroded by rainwater and prevent rainwater from leaking into the factory building, the rain cap of the roof fan is usually the largest integral component of the roof fan. Most of the fan rain caps on the market today are arc-shaped covers. , installed directly above the fan, due to the special installation position of the roof, it is not convenient to use lifting tools such as cranes, the size of the roof fan, especially the size of the rain cap, makes the application of large roof fans limited by installation and maintenance conditions . [0003] In addition, the rain cap is set above the...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is: the size of the rain cap of the traditional roof fan is large, it is very inconvenient during installation and maintenance, and the transportation problem is also difficult to solve, which is very inconvenient. The ventilation efficiency is greatly affected, and the air volume is greatly reduced

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