CN2186813Y - Dust filtering ventilation fan - Google Patents
Dust filtering ventilation fan Download PDFInfo
- Publication number
- CN2186813Y CN2186813Y CN 93222238 CN93222238U CN2186813Y CN 2186813 Y CN2186813 Y CN 2186813Y CN 93222238 CN93222238 CN 93222238 CN 93222238 U CN93222238 U CN 93222238U CN 2186813 Y CN2186813 Y CN 2186813Y
- Authority
- CN
- China
- Prior art keywords
- air
- filter net
- room
- way valve
- filter
- 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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- Structures Of Non-Positive Displacement Pumps (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The utility model discloses a dust filtering ventilation fan which is composed of a front cover (1), a blade (2), a motor (3), a back cover (4), a filter net cover (5), a one-way valve (6), a filter net frame (7) and a filter net (8). When air enters into a room, the motor rotates forwards, the one-way valve is closed, so that the air can enter into the room after dust is filtered by the filter net, and the dust can deposit on the outer surface of the filter net; when air is exhausted to the outside of a room, or deposited air on the outer surface of the filter net requires to be removed, the motor rotates backwards, a part of air can reach the outside of the room through the filter net, and simultaneously, the deposited air on the outer surface of the filter net can be blown away, and the other part of air which can push away the one-way valve can be exhausted to the outside of the room. The utility model has the advantages of low manufacture cost, simple technology, good dust removing effect, long service life and convenient operation, being a good product for improving people's living environment.
Description
The utility model is a kind of novel compound ventilation air-changing device that is used for room or office.
Existing ventilation fan has unidirectional and two-way two kinds, and they have improved people's living environment widely, but they have a great defective, do not filter the dirt function.
The purpose of this utility model provides a kind of filter dirt ventilation fan and overcomes this defective.
The utility model as figure (1), figure (2), figure (3), figure (4), figure (5), shown in, form by protecgulum (1), blade (2), motor (3), bonnet (4), filter cover (5), one-way valve (6), filter screen frame (7), filter screen (8).When motor was rotated in the forward, blade was supplied gas to indoor, and the air of outside enters from the filter screen outside, and airborne dust deposition is in the outside of filter screen, in the clean air inlet chamber.When need be when effluxing indoor air, the motor counter-rotating, blade is to the exhaust of bonnet direction, and the part of gas arrives outdoor through filter screen from the filter screen inboard, blow off simultaneously and amass laying dust at the filter screen outer surface, dedusting automatically.Gas another part is pushed check valve sheet open and directly is discharged into outdoor.
The utility model has overcome the defective that original ventilation fan can not be filtered dirt, and its existing ventilatory has filter dirt function again, can also remove the laying dust on the filter screen automatically, and is easy to use.
Figure (1) is an erection drawing of the present utility model; Figure (2) is the plan view and the left view of filter cover (5); Figure (3) is the left view of bonnet (4); Figure (4) is the plan view and the right elevation of filter screen frame (7); Figure (5) is the left view and the rear view of flap type protecgulum (9).
All figure are main perspective with the visual angle on erection drawing.
Embodiment: (1)
The utility model is as figure (1), figure (2), figure (3), figure (4), shown in the figure (5): by protecgulum (1), blade (2), motor (3), bonnet (4), filter cover (5), one-way valve (6), filter screen frame (7), filter screen (8) is formed, protecgulum (1) is used Bolt Connection with bonnet (4), blade (2) is connected by nut screwing clamping with motor (3) axle, motor (3) is fixed on the bonnet (4) with 4 screws, filter cover (5) connects for spinner with bonnet (4), one-way valve (6) connects with bolt with filter cover (5), one-way valve (6) can be that axle rotates with the bolt, open and close, filter screen (8) covers on filter screen frame (7), in filter screen frame (7) was enclosed within bonnet (4), filter dirt ventilation fan bonnet (4) was towards outdoor placement.
When need during to indoor air inlet, motor (3) drives blade (2) and is rotated in the forward; one-way valve (6) on the filter cover (5) relies on gravity and outside atmospheric pressure to close; in the inlet chamber, change indoor air behind the outdoor air process filter screen filter dirt, the dust deposition is at the filter screen outer surface.When need when outdoor exhaust maybe needs to remove the dust that amasss at the filter screen outer surface, motor (3), the counterrotating of drive blade (2), air by indoor to effluxing, at this moment portion of air arrives outdoor through the inboard filter screen of filter screen, blow the laying dust that amasss on the filter screen outer surface simultaneously off, and (because of indoor air be after filtration dirt so can not cause problem at filter screen internal surface laying dust).Another part air is pushed one-way valve open and is directly arranged to outdoor.The effect of one-way valve (6) is to make that resistance is littler when outdoor exhaust, and air displacement more greatly.
Embodiment (2)
Indoor will the insulation when using winter, protecgulum (1) need change the flap type protecgulum (9) of insulation into, its structure is the same with the protecgulum of dual direction ventilating fan on the market shown in figure (5), is opened by backguy before using and makes it to be fixed on opening state, is also controlled by backguy when not using and closes.
Claims (2)
1, a kind of novel filter dirt ventilation fan, its characteristic is by protecgulum (1), blade (2), motor (3), bonnet (4), filter cover (5), one-way valve (6), filter screen frame (7), filter screen (8) constitutes; Wherein protecgulum (1) is connected with bonnet (4) bolt, blade (2) is screwed on motor (3) axle with nut, motor (3) is screwed on the bonnet (4) with 4 screws, filter screen (8) covers on filter screen frame (7), and be enclosed in together in the bonnet (4), filter cover (5) spinner is on bonnet (4), and one-way valve (6) bolt is inserted on the filter cover (5).
2, according to the described filter dirt of claim 1. ventilation fan, it is characterized in that protecgulum (1), having two kinds of patterns a kind of is the plain edition protecgulum, and another kind is flap type protecgulum (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93222238 CN2186813Y (en) | 1993-08-24 | 1993-08-24 | Dust filtering ventilation fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93222238 CN2186813Y (en) | 1993-08-24 | 1993-08-24 | Dust filtering ventilation fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2186813Y true CN2186813Y (en) | 1995-01-04 |
Family
ID=33800883
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93222238 Expired - Fee Related CN2186813Y (en) | 1993-08-24 | 1993-08-24 | Dust filtering ventilation fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2186813Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111001254A (en) * | 2019-12-31 | 2020-04-14 | 唐红英 | Dust collector is used in weaving workshop |
-
1993
- 1993-08-24 CN CN 93222238 patent/CN2186813Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111001254A (en) * | 2019-12-31 | 2020-04-14 | 唐红英 | Dust collector is used in weaving workshop |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |