CN205423239U - Air discharge fan is used in classroom - Google Patents
Air discharge fan is used in classroom Download PDFInfo
- Publication number
- CN205423239U CN205423239U CN201620230608.8U CN201620230608U CN205423239U CN 205423239 U CN205423239 U CN 205423239U CN 201620230608 U CN201620230608 U CN 201620230608U CN 205423239 U CN205423239 U CN 205423239U
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- wind
- axle
- force
- fan
- electronic
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Abstract
The utility model discloses an air discharge fan is used in classroom belongs to the ventilation unit field, its characterized in that: including dustcoat, apron, wind -force fan piece, electronic piece, motor, wind -force axle and electrical axle, the dustcoat is including controlling four curb plates from top to bottom, and install on computer lab wall hole curb plate the inner, protection grate is equipped with to the dustcoat outer end, wind -force fan piece and electronic piece install respectively on wind -force axle and electrical axle, wind -force axle and electrical axle's both ends be connected with the dustcoat through bearing frame, connecting rod respectively, electrical axle one end be connected with the motor output shaft, rotatory through electronic piece of electromotor drive, the epaxial gear wheel that is equipped with of wind -force, gear wheel next door is equipped with the pinion rather than engaged with, little gear connection fan, fan department is equipped with the gasbag, wherein the fan is located the air intake of gasbag, gasbag department is equipped with motor switch. Compared with the prior art have can automatic switch -over ventilation mode characteristics.
Description
Technical field
This utility model relates to a kind of ventilation apparatus, particularly a kind of classroom exhaust fan.
Background technology
In classroom, personnel are more, and air is the most dirty, need to be aerated in time ventilation, and especially in disease transmission season, ventilation to be strengthened mutually is infected to avoid teaching between indoor occupant.In classroom, ventilation is carried out often through the mode ventilated of windowing at present, and owing to religion indoor occupant is more, in calm weather, only by windowing, ventilation can not reach preferable effect sometimes.
Utility model content
Technical assignment of the present utility model is for above the deficiencies in the prior art, it is provided that a kind of classroom exhaust fan.
The technical scheme in the invention for solving the technical problem is: a kind of classroom exhaust fan, it is characterised in that: include outer housing, cover plate, wind-force fan blades, electronic fan blades, motor, wind-force axle and electronic axle；Described outer housing includes four side plates up and down, and side plate the inner is arranged on machine room wall hole, and described outer housing outer end is equipped with protective grille；Described wind-force fan blades and electronic fan blades are separately mounted on wind-force axle and electronic axle, and described wind-force axle is connected with outer housing by bearing block, connecting rod respectively with the two ends of electronic axle；Described electronic axle one end is connected with motor output shaft, is rotated by the electronic fan blades of motor-driven；Described wind-force axle is provided with gear wheel, and gear wheel side is provided with meshed little gear, little gear connecting fan, air bag it is provided with at blower fan, wherein blower fan is positioned at the air inlet of air bag, is provided with motor switch at air bag, and described motor switch is normally closed switch.
The opposite sides of above-mentioned outer housing the inner is respectively equipped with chute, and the both sides of described cover plate lay respectively in described chute, so that cover plate is provided with screw along slide, described chute.
Compared with prior art, this utility model has a beneficial effect highlighted below:
1, can be fixedly mounted on the wall of required ventilation, widely applicable；
2, there is natural wind drive and motor two kinds of air vent modes of driving, and the both of which that can automatically switch, energy-conserving and environment-protective；
3, simple in construction, low cost of manufacture, it is simple to promote.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention
Below in conjunction with specification drawings and specific embodiments, this utility model is further illustrated.
As it is shown in figure 1, this utility model includes outer housing 12, cover plate 2, wind-force fan blades 3, electronic fan blades 8, motor 10, wind-force axle 4 and electronic axle 9.This utility model may be mounted on the wall of pathology room.
For ease of narration, set side, inner pathology indoor as interior, be outward from side, pathology room outward.
Described outer housing 12 includes four side plates up and down, and side plate the inner is arranged on machine room wall hole, and described outer housing 12 outer end, equipped with protective grille 11, prevents the outside foreign material such as flying bird, fallen leaves from entering.
Described wind-force fan blades 3 and electronic fan blades 8 are separately mounted on wind-force axle 4 and electronic axle 9, and described wind-force axle 4 is connected with outer housing 12 by bearing block 7, connecting rod 6 respectively with the two ends of electronic axle 9.
Described electronic axle 9 one end is connected with motor output shaft, drives electronic fan blades 8 to rotate by motor 10.
Described wind-force axle 4 is provided with gear wheel 4, gear wheel 4 side is provided with meshed little gear 16, little gear 16 connecting fan 15, air bag 14 it is provided with at blower fan 15, wherein blower fan 15 is positioned at the air inlet of air bag 14, being provided with motor switch 13 at air bag 14, described motor switch 13 is normally closed switch.
Blow wind-force fan blades 3 by natural wind action to rotate, by gear set drive blower fan 15 high speed rotating, inflated in air bag 14 by blower fan 15, air bag 14 is heaved, pressing motor switch 13, makes motor shut down, and is aerated ventilation by natural wind action；When not having natural wind, wind-force fan blades 3 is stopped the rotation, and the air in air bag 14 is run out of, and motor switch 13 resets, thus actuating motor 10, electronic fan blades 8 starts to rotate.Realize natural wind to drive and the automatic switchover of motor two kinds of air vent modes of driving.
In prioritization scheme, the opposite sides of described outer housing 12 the inner is respectively equipped with chute 17, and the both sides of described cover plate 2 lay respectively in described chute 17, so that cover plate 2 slides along chute 17, described chute 17 is provided with screw 1, is fastened by cover plate 2 by screw 1.The size of wind-force can be changed by adjusting the position of cover plate 2.
It should be noted that; this utility model has been described in detail by particular of the present utility model; for a person skilled in the art, the various obvious change carried out it in the case of without departing substantially from spirit and scope of the present utility model is all within protection domain of the present utility model.
Claims (2)
1. a classroom exhaust fan, it is characterised in that: include outer housing, cover plate, wind-force fan blades, electronic fan blades, motor, wind-force axle and electronic axle；Described outer housing includes four side plates up and down, and side plate the inner is arranged on machine room wall hole, and described outer housing outer end is equipped with protective grille；Described wind-force fan blades and electronic fan blades are separately mounted on wind-force axle and electronic axle, and described wind-force axle is connected with outer housing by bearing block, connecting rod respectively with the two ends of electronic axle；Described electronic axle one end is connected with motor output shaft, is rotated by the electronic fan blades of motor-driven；Described wind-force axle is provided with gear wheel, and gear wheel side is provided with meshed little gear, little gear connecting fan, air bag it is provided with at blower fan, wherein blower fan is positioned at the air inlet of air bag, is provided with motor switch at air bag, and described motor switch is normally closed switch.
Classroom the most according to claim 1 exhaust fan, it is characterised in that: the opposite sides of described outer housing the inner is respectively equipped with chute, and the both sides of described cover plate lay respectively in described chute, and described chute is provided with screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620230608.8U CN205423239U (en) | 2016-03-24 | 2016-03-24 | Air discharge fan is used in classroom |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620230608.8U CN205423239U (en) | 2016-03-24 | 2016-03-24 | Air discharge fan is used in classroom |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205423239U true CN205423239U (en) | 2016-08-03 |
Family
ID=56548166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620230608.8U Expired - Fee Related CN205423239U (en) | 2016-03-24 | 2016-03-24 | Air discharge fan is used in classroom |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205423239U (en) |
-
2016
- 2016-03-24 CN CN201620230608.8U patent/CN205423239U/en not_active Expired - Fee Related
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160803 Termination date: 20170324 |