CN202811473U - Roof ventilator - Google Patents
Roof ventilator Download PDFInfo
- Publication number
- CN202811473U CN202811473U CN 201220545933 CN201220545933U CN202811473U CN 202811473 U CN202811473 U CN 202811473U CN 201220545933 CN201220545933 CN 201220545933 CN 201220545933 U CN201220545933 U CN 201220545933U CN 202811473 U CN202811473 U CN 202811473U
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- CN
- China
- Prior art keywords
- bearing sleeve
- center shaft
- bearing
- sleeve
- wind
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility mode discloses a roof ventilator. The roof ventilator structurally comprises a center shaft, wherein the top end of the center shaft is fixedly connected with a top cover of a wind ball through a shaft sleeve, a center shaft thread is installed at the lower end of the center shaft, and a wind impeller fixation supporting frame is installed at the lower side of the center shaft thread; an outer bearing sleeve is installed at the lower side of the wind impeller fixation supporting frame, an upper bearing is installed at the upper end inside the outer bearing sleeve, a lower bearing is installed at the lower end inside the outer bearing sleeve, and an inner bearing sleeve is installed between the upper bearing and the lower bearing; and an assembly composed of the outer bearing sleeve, the inner bearing sleeve, the upper bearing and the lower bearing is fixed on a position of the center shaft through a nut, wherein the position of the center shaft is located at the lower side of the wind impeller fixation supporting frame. According to the roof ventilator, a wind impeller and the wind ball can rotate on the condition of non-extra-load, requirements for motive power are low, and the effects of energy conservation and stable operation are achieved. In addition, the number of components taking part in rotation is reduced to be beneficial for reduction of mechanical abrasion, the service life of the ventilator is prolonged, and the roof ventilator can be widely applied to plants, office buildings, markets, cinemas and other large working and entertainment places.
Description
Technical field
The utility model relates to a kind of vented exhaust equipment, relates in particular to a kind of roof ventilator.
Background technique
Roof ventilator is a kind of vented exhaust equipment that is widely used in the large-scale work such as factory building, office building, market, movie theatre, entertainment places.
Roof ventilator generally all comprises support, wind ball and top cover, and fan blade ball inside is provided with fan blade and central shaft.The fan blade impeller rotates under the dynamic action that motor or extraneous wind provide, gas in the wind ball is subject to centrifugal action and obtains to discharge from the fan blade impeller periphery behind the kinetic energy, leading role through scroll casing shape wind ball, discharge to the ventilator outlet, thereby in the inner negative pressure that forms of wind ball, air-flow flows into from the bottom continuously and replenishes in the suction chamber, to reach the cleaning action to indoor air.
But the central shaft of existing roof ventilator is fixed, fan blade and wind ball all rotate around central shaft, therefore cause easily the wearing and tearing of fan blade and wind ball, shortened the working life of associated components, in addition, for only relying on natural wind to provide for the roof ventilator of power, the ventilator of this kind structure requires larger wind-force to promote its wind ball and fan blade rotates, if wind-force is not enough, can cause ventilator to work.
The model utility content
The utility model discloses a kind of roof ventilator, be intended to improve existing existing the problems referred to above of roof ventilator.
The utility model has taked following technological scheme to achieve the goal:
A kind of roof ventilator, comprise central shaft, the top of described central shaft is fixedly connected with by the top cover of an axle sleeve with the wind ball, it is characterized in that, the lower end of described central shaft is provided with central axle threads, the downside of described central axle threads is provided with a fan blade fixed support, and described central axle threads and fan blade fixed support are jointly in order to fixing fan blade;
The support bracket fastened downside of described fan blade is provided with an outer bearing sleeve, and the upper and lower end in the described outer bearing sleeve is respectively equipped with a upper bearing (metal) and a lower bearing, is provided with an internal bearing sleeve between the described upper and lower bearing;
The assembly that described outer bearing sleeve, internal bearing sleeve and upper and lower bearing consist of is fixed on the central shaft of described fan blade fixed support downside by a nut.
Further, described outer bearing sleeve is plugged in the central shaft hole of a wind ball stand, and its outer rim is provided with bulge loop, in order to location and support outer bearing sleeve.
The beneficial effects of the utility model are: because fan blade and wind ball all rotate together with central shaft, reduced the friction of other any parts of they and ventilator, therefore lower to the requirement of power, thereby reach energy-conservation and effect stable operation, in addition, the parts that participate in rotation have reduced, and are conducive to reduce mechanical wear, prolong the working life of ventilator.
Description of drawings
Accompanying drawing is the utility model embodiment's structure sectional view
Be labeled as among the figure: 1, central shaft, 2, axle sleeve, 3, the fan blade fixed support, 4, outer bearing sleeve, 5, upper bearing (metal), 6 lower bearings, 7, internal bearing sleeve, 8, nut, 9, the wind ball stand, 11, central axle threads, 41, (outer bearing sleeve) bulge loop
Embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Present embodiment for one with natural wind provide power without the motor roof ventilator.
With reference to accompanying drawing:
A kind of roof ventilator, comprise central shaft 1, the top of central shaft 1 is fixedly connected with by the top cover of axle sleeve 2 with the wind ball, it is characterized in that, the lower end of central shaft 1 is provided with central axle threads 11, the downside of central axle threads 11 is provided with fan blade fixed support 3, and central axle threads 11 and fan blade fixed support 3 are jointly in order to fixing fan blade;
The downside of fan blade fixed support 3 is provided with outer bearing sleeve 4, and the upper and lower end in the outer bearing sleeve is respectively equipped with upper bearing (metal) 5 and lower bearing 6, is provided with internal bearing sleeve 7 between the upper and lower bearing 5,6;
The assembly that outer bearing sleeve 4, internal bearing sleeve 7 and upper and lower bearing 5,6 consist of is fixed on the central shaft 1 of fan blade fixed support 3 downsides by a nut 8.
Outer bearing sleeve 4 is plugged in the central shaft hole of wind ball stand 9, and its outer rim is provided with bulge loop 41, in order to location and support outer bearing sleeve 4.
Working principle of the present utility model is: extraneous natural wind is blown in the ball along the ball wall of wind ball, wind ball and fan blade rotate together with central shaft 1 under the effect of natural wind, the centrifugal force that rotation produces makes the gas in the wind ball obtain to discharge from the fan blade periphery behind the kinetic energy, leading role through scroll casing shape wind ball inwall, discharge to the ventilator outlet, thereby in the inner negative pressure that forms of wind ball, air-flow flows into from the ventilator bottom continuously and replenishes in the suction chamber, to reach the cleaning action to indoor air
Claims (2)
1. roof ventilator, comprise central shaft (1), the top of central shaft (1) is fixedly connected with the top cover of wind ball by axle sleeve (2), it is characterized in that, the lower end of central shaft (1) is provided with central axle threads (11), the downside of central axle threads (11) is provided with fan blade fixed support (3), and central axle threads (11) and fan blade fixed support (3) are jointly in order to fixing fan blade;
The downside of fan blade fixed support (3) is provided with outer bearing sleeve (4), and the upper and lower end in the outer bearing sleeve is respectively equipped with upper bearing (metal) (5) and lower bearing (6), and upper and lower bearing is provided with internal bearing sleeve (7) between (5,6);
The assembly that outer bearing sleeve (4), internal bearing sleeve (7) and upper and lower bearing (5,6) consist of is fixed on the central shaft (1) of fan blade fixed support (3) downside by a nut (8).
2. a kind of roof ventilator according to claim 1 is characterized in that, outer bearing sleeve (4) is plugged in the central shaft hole of wind ball stand (9), and its outer rim is provided with bulge loop (41), in order to location and support outer bearing sleeve (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220545933 CN202811473U (en) | 2012-10-23 | 2012-10-23 | Roof ventilator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220545933 CN202811473U (en) | 2012-10-23 | 2012-10-23 | Roof ventilator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202811473U true CN202811473U (en) | 2013-03-20 |
Family
ID=47870356
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220545933 Expired - Fee Related CN202811473U (en) | 2012-10-23 | 2012-10-23 | Roof ventilator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202811473U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106286330A (en) * | 2015-05-19 | 2017-01-04 | 刘美嫦 | A kind of roof system structure ventilation blower |
-
2012
- 2012-10-23 CN CN 201220545933 patent/CN202811473U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106286330A (en) * | 2015-05-19 | 2017-01-04 | 刘美嫦 | A kind of roof system structure ventilation blower |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130320 Termination date: 20141023 |
|
| EXPY | Termination of patent right or utility model |