Multi-blade type intake device

Abstract

The invention discloses a multi-blade type intake device. The multi-blade type intake device comprises a window, a controller, large and small belt pulleys and a transmission band. A moving opening isformed in the middle portion of thick glass arranged on the middle portion of the window, the moving opening is internally provided with a rotating shaft and blades connected onto the rotating shaft,a circle with the distance between the apex of the blade edges and the center portion of the blades as the radius and the center portion as the center of the circle is externally tangent with the plane where kraft paper is located, the plane where the kraft paper is located is parallel to the blade surfaces of the blades, and one end of the rotating shaft is connected with the driving end of themotor. An input conducting plate connected to an input power line of the controller and an output conducting plate connected to an output power line are oppositely arranged in a metal shell right andleft, the bottom of an insulating plate between the input / output conducting plates is connected to the left and right walls of the metal shell by a horizontal wax strip, and magnetically attracting magnets are disposed on the back surfaces of the conducting plates. The design can automatically exhaust air in case of fire, can conveniently reduce fire losses, and is simple in structure, high in practicality and low in cost.

Description

technical field [0001] The invention relates to a fire prevention device, in particular to a multi-blade air intake device, which is particularly suitable for automatically exhausting air through windows to reduce fire losses in the event of a fire, and has a simple structure, strong practicability, and low cost. advantage. Background technique [0002] At present, the windows sold on the market and used in daily life are all manually opened, and the windows cannot be opened automatically according to the changes in the environment outside the window itself to achieve automatic ventilation, which is very inconvenient, especially when a fire occurs indoors, if the window can At this time, the automatic exhaust is not only beneficial to reduce the indoor temperature, but also helps to discharge the smoke caused by the indoor fire, which is very beneficial to reduce the loss of the fire. [0003] Chinese patent, the authorized announcement number is CN201148801Y, and the autho...

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Problems solved by technology

[0006] The purpose of the present invention is to overcome the defects and problems of complex structure, low practicability and high cost in the prior art, and provide a multi-blade air intake device with simple structure, strong practicability and low cost

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