CN202109609U - Air exhaust device with automatic closing function - Google Patents
Air exhaust device with automatic closing function Download PDFInfo
- Publication number
- CN202109609U CN202109609U CN2011201660797U CN201120166079U CN202109609U CN 202109609 U CN202109609 U CN 202109609U CN 2011201660797 U CN2011201660797 U CN 2011201660797U CN 201120166079 U CN201120166079 U CN 201120166079U CN 202109609 U CN202109609 U CN 202109609U
- Authority
- CN
- China
- Prior art keywords
- air
- automatic closing
- closing function
- escape pipe
- air inlet
- 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 model relates to the technical field of air exhaust devices, in particular to an air exhaust device with an automatic closing function, which comprises an air intake pipe and an air outlet pipe butted with the air intake pipe, wherein the air intake end and the outlet end of the air outlet pipe are provided with door fixing devices in opposite angles, and two sides of each door fixing device are provided with door vane boards rotatably. The air exhaust device has a simple structure and is reasonable in design, and when the air exhaust device stops working, the two vane boards are closed under the action of the gravity so as to prevent the outdoor pollution gas from entering a room, and achieve the aim of purifying the indoor air.
Description
Technical field
The utility model relates to the air exhausting device technical field, particularly a kind of air exhausting device with automatic closing function.
Background technology
Along with people's environmental consciousness ground constantly increases, various air exhausting device extensive uses, for people institute common with know.Existing air exhausting device structure is provided with simply unreasonable, is not provided with self closing device, and when not using, outside contamination gas can be back to indoor through air exhausting device, influences office work and academic environment.So be necessary prior art is effectively improved.
The utility model content
The purpose of the utility model is defective and the deficiency to prior art, and the air exhausting device of band automatic closing function a kind of simple in structure, reasonable in design is provided.
For realizing above-mentioned purpose, the utility model adopts following technical scheme:
The described a kind of air exhausting device of the utility model with automatic closing function; It comprises air inlet pipe; With the escape pipe that docks with air inlet pipe, the entrance point of said escape pipe becomes the diagonal angle to be provided with door fastening device with the port of export, and the both sides of door fastening device are rotatable to be provided with two gate flap plates.
Further, be embedded with the metal weighted plate in the said gate flap plate.
Further, said air inlet pipe and escape pipe are circle, and the diameter of air inlet pipe is less than the diameter of escape pipe.
Further, the entrance point of said escape pipe forms fixed ring piece, and fixed ring piece is provided with the plurality of fixed hole.
Further, said plurality of fixed hole is uniformly distributed on the fixed ring piece.
The utility model beneficial effect is: the said a kind of air exhausting device with automatic closing function of the utility model; It comprises air inlet pipe; With the escape pipe that docks with air inlet pipe; The entrance point of said escape pipe becomes the diagonal angle to be provided with door fastening device with the port of export, and the both sides of door fastening device are rotatable to be provided with two gate flap plates.The utility model is simple in structure, and is reasonable in design, and when air exhausting device quits work, two gate flap plates will be closed under the self gravitation effect, to stop in the outdoor dusty gas inlet chamber, reach the purpose that purifies the air of a room.
Description of drawings
Fig. 1 is the sectional structure sketch map of the utility model;
Fig. 2 is another angle sectional structure sketch map of the utility model;
Fig. 3 is the utility model user mode figure.
Among the figure:
1, air inlet pipe; 2, escape pipe; 3, fixed ring piece; 4, gate flap plate;
5, door fastening device; 6, body of wall; 7, blast pipe; 11, air inlet;
21, gas outlet; 41, metal weighted plate.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is further described.
Extremely shown in Figure 3 like Fig. 1; The described a kind of air exhausting device of the utility model with automatic closing function; It comprises air inlet pipe 1; With the escape pipe 2 that docks with air inlet pipe 1, the entrance point of said escape pipe 2 becomes the diagonal angle to be provided with door fastening device 5 with the port of export, and the both sides of door fastening device 5 are rotatable to be provided with two gate flap plates 4.Be that air inlet pipe 1, escape pipe 2, door fastening device 5 and gate flap plate 4 constitute the utility model basic structure, generally all adopt plastic material to be made.Certainly the utility model is not got rid of being suitable for of other material.
Be embedded with metal weighted plate 41 in the said gate flap plate 4, with the self gravitation of further increase gate flap plate 4.
The preferred said air inlet pipe 1 of the utility model is circle with escape pipe 2, and the diameter of air inlet pipe 1 is less than the diameter of escape pipe 2.So gate flap plate 4 is semicircle, it is provided with rotating shaft along diametrical position, and gate flap plate 4 is fixed on the door fastening device 5 through rotating shaft.
In addition, the entrance point of said escape pipe 2 forms fixed ring piece 3, and fixed ring piece 3 is provided with the plurality of fixed hole, and the preferred said plurality of fixed of the utility model hole is uniformly distributed on the fixed ring piece 3.
As shown in Figure 3, the utility model is located in the body of wall 6, fixes through the fixing hole on the fixed ring piece 3 with screw, and air inlet pipe 1 is connected with blast pipe 7, and gas gets into air inlets 11 from blast pipe 7, blow gate flap plate 4 open after, from the gas outlet 21 discharge outdoor.When stopping exhaust, two gate flap plates 4 are closed under the self gravitation effect, to avoid reaching the purpose that purifies air in the outdoor dusty gas inlet chamber.
The above only is the preferred embodiments of the utility model, so all equivalences of doing according to the described structure of the utility model patent claim, characteristic and principle change or modify, includes in the utility model patent claim.
Claims (5)
1. air exhausting device with automatic closing function; It comprises air inlet pipe (1); With the escape pipe (2) that docks with air inlet pipe (1); It is characterized in that: the entrance point of said escape pipe (2) becomes the diagonal angle to be provided with door fastening device (5) with the port of export, rotatable two the gate flap plates (4) that are provided with in the both sides of door fastening device (5).
2. a kind of air exhausting device with automatic closing function according to claim 1 is characterized in that: be embedded with metal weighted plate (41) in the said gate flap plate (4).
3. a kind of air exhausting device with automatic closing function according to claim 2 is characterized in that: said air inlet pipe (1) and escape pipe (2) are circle, and the diameter of air inlet pipe (1) is less than the diameter of escape pipe (2).
4. a kind of air exhausting device with automatic closing function according to claim 2 is characterized in that: the entrance point of said escape pipe (2) forms fixed ring piece (3), and fixed ring piece (3) is provided with the plurality of fixed hole.
5. a kind of air exhausting device with automatic closing function according to claim 4 is characterized in that: said plurality of fixed hole is uniformly distributed on the fixed ring piece (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201660797U CN202109609U (en) | 2011-05-23 | 2011-05-23 | Air exhaust device with automatic closing function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201660797U CN202109609U (en) | 2011-05-23 | 2011-05-23 | Air exhaust device with automatic closing function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202109609U true CN202109609U (en) | 2012-01-11 |
Family
ID=45435044
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201660797U Expired - Fee Related CN202109609U (en) | 2011-05-23 | 2011-05-23 | Air exhaust device with automatic closing function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202109609U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108885024A (en) * | 2016-03-31 | 2018-11-23 | 金进虎 | Exhaust fan cutter |
-
2011
- 2011-05-23 CN CN2011201660797U patent/CN202109609U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108885024A (en) * | 2016-03-31 | 2018-11-23 | 金进虎 | Exhaust fan cutter |
| CN108885024B (en) * | 2016-03-31 | 2020-11-17 | 金进虎 | Cutter for exhaust fan |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120111 Termination date: 20120523 |