A non-powered fan with automatic adjustment of ventilation volume
An automatic adjustment and ventilation volume technology, which is applied in the direction of machines/engines, liquid fuel engines, mechanical equipment, etc., can solve the problems of uncontrollable adjustment of the size of the opening and closing vents, difficulty in obtaining ventilation and heat dissipation effects, etc.
Active Publication Date: 2019-10-25
定远县冶溪粮食机械有限公司
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Problems solved by technology
The vents of the unpowered ventilators in the prior art are always open, and the opening and closing and the adjustment of the size of the vents cannot be controlled, so it is difficult to obtain good ventilation and heat dissipation effects
Method used
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Embodiment Construction
[0018] refer to figure 1 , the present invention proposes a non-powered fan with automatic adjustment of ventilation volume, including air duct 1, blade ring 2, support shaft 3, top cover 4, wind ball, power assembly, water bag, alarm mechanism, first detection mechanism, The second testing agency, the third testing agency, the fourth testing agency, the fifth testing agency and the control agency, of which:
[0019] An air duct bracket 5 is fixedly installed in the air duct 1 , and a first channel 6 is provided in the air duct bracket 5 , and a second channel 7 communicating with the first channel 6 is provided on the inner wall of the air duct 1 . A horizontally arranged cover plate 8 is installed at the position below the air duct support 5 in the air duct 1. The cover plate 8 is provided with a first ventilation opening 9 and a second ventilation opening 10. The cover plate 8 is provided with a The first windshield 11 of 9 and the second windshield 12 for closing the seco...
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The invention provides a ventilation quantity automatically-adjusted unpowered draught fan. The ventilation quantity automatically-adjusted unpowered draught fan comprises an air pipe, a blade ring, asupporting shaft, a top cover, an air ball, a power assembly and a control mechanism. A cover plate is provided with a first wind deflector used for closing a first ventilation opening and a second wind deflector used for closing a second ventilation opening, and one end of the first wind deflector and one end of the second wind deflector are hinged to the center of the cover plate. One end of afirst pulling rod is hinged to the first wind deflector, one end of a second pulling rope is hinged to the second wind deflector, and the other end of the first pulling rope and the other end of the second pulling rope are both hinged to a connection piece. One end of a third pulling rope is connected with the connection piece, and the other end of the third pulling rope sequentially passes through a first channel and a second channel to be connected with a sliding block. A drive mechanism is controlled by the control mechanism to drive the sliding block to move up and down in the vertical direction. According to the ventilation quantity automatically-adjusted unpowered draught fan, the ventilation quantity of the first ventilation opening and the ventilation quantity of the second ventilation opening are adjusted by controlling the included angle between the first wind deflector and the cover plate and the included angle between the second wind deflector and the cover plate, and the ventilation air exchanging function of the unpowered draught fan is given full play.
Description
technical field [0001] The invention relates to the technical field of non-powered fans, in particular to a non-powered fan with automatic ventilation adjustment. Background technique [0002] The non-powered ventilator is a commonly used type in the roof ventilator series, which is mainly used in the top floor of the community, hospitals, restaurants, gymnasiums, large factories and other occasions that require roof ventilation. The unpowered fan uses the natural wind speed to drive the turbine of the fan to rotate, and uses the principle of indoor and outdoor air convection to capture the wind force on the windward side through the blades on the turbine blade shell, push the blades, and make the turbine blade shell rotate. At the same time, centrifugal force is generated due to the rotation. , the air under the turbine is induced to be discharged between the blades on the leeward side. After the air is discharged, a low-pressure area is formed under the turbine. In order t...
Claims
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IPC IPC(8): F04D27/00F04D29/00F04D29/70
CPCF04D27/00F04D29/002F04D29/703
Inventor 张作良
Owner 定远县冶溪粮食机械有限公司