Roof system structure ventilator
A system structure, fan technology, applied in mechanical equipment, machines/engines, non-variable-capacity pumps, etc., can solve problems such as shortening the service life of related components, the fan cannot work normally, and the wind impeller and wind ball are worn out. The effect of reducing mechanical wear, reducing friction and extending service life
Inactive Publication Date: 2017-01-04
刘美嫦
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Problems solved by technology
[0004] However, the central axis of the existing roof fan is fixed, and the wind impeller and the wind ball all rotate around the central axis, so it is easy to cause the wear of the wind impeller and the wind ball, shortening the service life of related parts. In addition, for only relying on natural As far as the roof ventilator powered by wind is concerned, the ventilator of this structure requires greater wind force to drive its wind ball and wind impeller to rotate. If the wind force is insufficient, the ventilator will not work normally.
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[0014] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.
[0015] This embodiment is a non-motor roof ventilator powered by natural wind.
[0016] Referring to the attached picture:
[0017] A roof system structure ventilator, including a central shaft 1, the top of the central shaft 1 is fixedly connected to the top cover of the wind bulb through a shaft sleeve 2, and it is characterized in that the lower end of the central shaft 1 is provided with a central shaft thread 11, and the central shaft thread The lower side of 11 is provided with the wind impeller fixing bracket 3, and the central shaft thread 11 and the wind impeller fixing bracket 3 are used to fix the wind impeller together;
[0018] The lower side of the wind impeller fixed bracket 3 is provided with an outer bearing sleeve 4, and the upper and lower ends of the outer bearing sleeve are respectively provided with an upper bearing 5 and...
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The invention discloses a roof system structure ventilator. The roof system structure ventilator includes a central shaft; the top end of the central shaft is fixedly connected to a top cap of a wind ball through a shaft sleeve, and the lower end of the central shaft is provided with central shaft threads; a wind vane wheel fixing support is arranged under the central shaft threads; an outer bearing sleeve is arranged under the wind vane wheel fixing support; the upper end and the lower end of the inner part of the outer bearing sleeve are provided with an upper bearing and a lower bearing respectively, and an inner bearing sleeve is arranged between the upper bearing and the lower bearing; and the outer bearing sleeve, the inner bearing sleeve, the upper bearing and the lower bearing form an assembly which is fixed on the central shaft under the wind vane wheel. According to the invention, the wind vane wheel and the wind ball can rotate without additional load, the demand for power is low, and then an energy-saving effect and a stable operation effect can be achieved; and in addition, the number of rotation parts is decreased, mechanical abrasion is reduced, the service life of the ventilator is prolonged, and the roof system structure ventilator can be widely applied to large-scale work and entertainment places such as plants, office buildings, shopping malls and cinemas.
Description
technical field [0001] The invention relates to ventilation and exhaust equipment, in particular to a roof system structure ventilator. Background technique [0002] Roof system structural ventilator is a kind of ventilation and exhaust equipment widely used in factories, office buildings, shopping malls, theaters and other large-scale work and entertainment places. [0003] The roof fan generally includes a support, a wind ball and a top cover, and the inside of the wind blade ball is provided with a wind impeller and a central shaft. The fan impeller rotates under the power provided by the motor or the external wind, and the gas in the fan ball is discharged from the periphery of the fan impeller after being subjected to centrifugal force to obtain kinetic energy. After being guided by the volute-shaped fan ball, it is discharged to the fan outlet. As a result, a negative pressure is formed inside the wind bulb, attracting indoor airflow to continuously flow in and replen...
Claims
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IPC IPC(8): F04D25/08
Inventor 刘美嫦
Owner 刘美嫦