CN209838726U - Static adjusting draught fan - Google Patents
Static adjusting draught fan Download PDFInfo
- Publication number
- CN209838726U CN209838726U CN201920514508.1U CN201920514508U CN209838726U CN 209838726 U CN209838726 U CN 209838726U CN 201920514508 U CN201920514508 U CN 201920514508U CN 209838726 U CN209838726 U CN 209838726U
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- CN
- China
- Prior art keywords
- draught fan
- air inlet
- protective cover
- air
- fan main
- 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 discloses a quiet mode draught fan, include draught fan main part, motor, air inlet end, air-out end, fixing bolt and inhale the sound cotton, the left end of draught fan main part is connected with the motor, and the top of draught fan main part is provided with the air inlet end to the inside of air inlet end is provided with the air inlet chamber, and the import department in air inlet chamber is provided with the protection frame simultaneously, the air inlet chamber lateral wall department of the below of protection frame is connected with the fixed frame on the first protection casing through fixing bolt, and has seted up first sound absorbing hole on the first protection casing, the right-hand member of draught fan main part is provided with the air-out end, and the inside of air-out end is provided with the air-out chamber to the air-out chamber lateral wall is connected with the fixed frame on the second protection casing through fixing bolt, has seted up. This static mode draught fan, when using, through the transformation of imports and exports at the draught fan main part, the noise that produces when reducible draught fan main part moves, and can protect the draught fan main part.
Description
Technical Field
The utility model relates to a draught fan technical field specifically is a static mode draught fan.
Background
Because the static adjustment type draught fan has the characteristics of low maintenance cost and stable operation, the static adjustment type draught fan is widely applied to various ventilation places, but the existing static adjustment type draught fan can generate moving noise due to wind speed and self operation in the using process, so that the surrounding environment of the static adjustment type draught fan is easily subjected to noise pollution, and the problem that blades in the static adjustment type draught fan are stuck and damaged by foreign matters is easily caused.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a static formula draught fan to solve the current static formula draught fan that proposes in the above-mentioned background art, at the in-process that uses, because the reason of wind speed and self operation can produce the noise of removal, easily make static formula draught fan surrounding environment produce noise pollution, and easily cause the problem that the inside blade of static formula draught fan is died the damage by the foreign matter card.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a quiet mode draught fan, includes draught fan main part, motor, air inlet end, air-out end, fixing bolt and inhales the sound cotton, the left end of draught fan main part is connected with the motor, and the top of draught fan main part is provided with the air inlet end to the inside of air inlet end is provided with the air inlet chamber, and the import department in air inlet chamber is provided with the fender bracket simultaneously, the air inlet chamber lateral wall department of the below of fender bracket is connected with the fixed frame on the first protection casing through fixing bolt, and has seted up first sound absorbing hole on the first protection casing to the inboard of first protection casing and second protection casing all is provided with inhales the sound cotton, the right-hand member of draught fan main part is provided with the air-out end, and the inside of air-out end is provided with the air-out chamber to the air-out chamber lateral wall is connected with the fixed frame on.
Preferably, the air inlet cavity is communicated with the air outlet cavity, and the air inlet cavity is connected with the protective frame through bolts.
Preferably, the first protection cover and the second protection cover are detachable structures, and the shape structures of the first protection cover and the second protection cover are annular structures.
Preferably, the first sound absorption holes are uniformly distributed on the first protective cover, the first sound absorption holes are obliquely arranged, and the opening direction of the first sound absorption holes is downward.
Preferably, the shape structure of the protection frame is a cross-shaped structure, and the protection frame is positioned above the first protection cover.
Preferably, the diameter of the second sound absorbing hole is the same as the diameter of the first sound absorbing hole, and the opening direction of the second sound absorbing hole is towards the right.
Compared with the prior art, the beneficial effects of the utility model are that: when the static adjusting type draught fan is used, the noise generated when the draught fan main body runs can be reduced by reforming the inlet and the outlet of the draught fan main body, and the draught fan main body can be protected;
1. the first protective cover and the second protective cover are respectively arranged at the air inlet end and the air outlet end of the draught fan main body, so that the sound-absorbing cotton is protected, the sound-absorbing cotton is prevented from being damaged, and the sound-absorbing cotton is convenient to replace;
2. the first protective cover and the second protective cover are respectively provided with a first sound absorbing hole and a second sound absorbing hole, so that the sound absorbing cotton can absorb noise through the first sound absorbing hole and the second sound absorbing hole, the opening direction of the first sound absorbing hole is downward, the opening direction of the second sound absorbing hole is rightward, wind current can be prevented from directly blowing to the first sound absorbing hole or the second sound absorbing hole, and dust is prevented from being attached to the first sound absorbing hole or the second sound absorbing hole;
3. the protection frame is arranged above the first protection cover in the air inlet cavity, the opening gap of the protection frame can be changed according to different requirements, the blades in the draught fan main body can be protected, and the damage to the blades in the draught fan main body is avoided.
Drawings
FIG. 1 is a schematic view of the main structure of the induced draft fan of the present invention;
FIG. 2 is a schematic top view of the protective frame of the present invention;
FIG. 3 is a schematic view of a first protective cover according to the present invention;
FIG. 4 is an enlarged schematic view of point A of FIG. 1 according to the present invention;
fig. 5 is an enlarged schematic view of point B in fig. 1 according to the present invention.
In the figure: 1. a draught fan main body; 2. a motor; 3. an air inlet end; 4. an air inlet cavity; 5. an air outlet end; 6. an air outlet cavity; 7. a first shield; 8. a first sound absorbing aperture; 9. a fixing frame; 10. fixing the bolt; 11. sound-absorbing cotton; 12. a protective frame; 13. a second shield; 14. a second sound absorbing hole.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-5, the present invention provides a technical solution: a static adjusting type draught fan comprises a draught fan main body 1, a motor 2, an air inlet end 3, an air inlet cavity 4, an air outlet end 5, an air outlet cavity 6, a first protective cover 7, a first sound absorbing hole 8, a fixing frame 9, a fixing bolt 10, sound absorbing cotton 11, a protective frame 12, a second protective cover 13 and a second sound absorbing hole 14, wherein the left end of the draught fan main body 1 is connected with the motor 2, the top end of the draught fan main body 1 is provided with the air inlet end 3, the air inlet cavity 4 is arranged inside the air inlet end 3, the protective frame 12 is arranged at the inlet of the air inlet cavity 4, the side wall of the air inlet cavity 4 below the protective frame 12 is connected with the fixing frame 9 on the first protective cover 7 through the fixing bolt 10, the first sound absorbing hole 8 is arranged on the first protective cover 7, the sound absorbing cotton 11 is arranged on the inner sides of the first protective cover 7 and the second protective cover 13, and the inside of air-out end 5 is provided with air-out chamber 6 to the fixed frame 9 on air-out chamber 6 lateral wall is connected with second protection casing 13 through fixing bolt 10, has seted up the second on the second protection casing 13 simultaneously and has inhaled sound hole 14.
The air inlet cavity 4 is communicated with the air outlet cavity 6, the air inlet cavity 4 is connected with the protection frame 12 through bolts, the protection frame 12 is convenient to detach and fix, and workers can replace the first protection cover 7 in the air inlet cavity 4 conveniently.
First protection casing 7 and second protection casing 13 are detachable construction, and the shape structure of first protection casing 7 and second protection casing 13 is the loop configuration, sets up like this and plays the effect of inhaling sound cotton 11 and changing inside first protection casing 7 and second protection casing 13 to make things convenient for first protection casing 7 and second protection casing 13 respectively with the contact of air inlet chamber 4 and air-out 6 inner walls.
First sound absorbing hole 8 evenly distributed is on first protection casing 7, and first sound absorbing hole 8 is the slope installation to first sound absorbing hole 8's opening direction is downward, sets up like this and can avoid entering into the wind of air inlet chamber 4 inside and directly blow to first sound absorbing hole 8, and then avoids the dust to attach to on first sound absorbing hole 8.
The shape structure of protection frame 12 is "ten" style of calligraphy structure, and protection frame 12 is located the top of first protection casing 7, sets up like this and can avoid external great object accident to fall into draught fan main part 1 inside, is favorable to the protection to the inside blade of draught fan main part 1.
The diameter of the second sound absorbing hole 14 is the same as the diameter of the first sound absorbing hole 8, and the opening direction of the second sound absorbing hole 14 is rightward, so that the air discharged from the air outlet cavity 6 can be prevented from directly blowing to the second sound absorbing hole 14, and further, dust is prevented from being attached to the second sound absorbing hole 14.
The working principle is as follows: when the static adjusting type draught fan is used, the air inlet end 3 and the air outlet end 5 of the draught fan main body 1 are respectively connected with an external pipeline, after the connection is finished, the motor 2 on the draught fan main body 1 is started, the motor 2 drives the blades in the draught fan main body 1 to rotate, so that external air enters the draught fan main body 1 through the air inlet cavity 4 and is discharged from the air outlet cavity 6 at the other end of the draught fan main body 1, when the draught fan main body 1 works, the first sound absorption hole 8 on the first protective cover 7 and the second sound absorption hole 14 on the second protective cover 13 can respectively absorb sound at the air inlet cavity 4 and the air outlet cavity 6 through the sound absorption cotton 11, so that the noise generated by the work and the wind speed of the draught fan main body 1 is reduced, when a large foreign body exists in an air inlet pipeline, the protective frame 12 can block the foreign body, and the damage to the blades in the draught, the above is the use process of the static adjustment type draught fan.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (6)
1. The utility model provides a quiet mode draught fan, includes draught fan main part (1), motor (2), air inlet end (3), air-out end (5), fixing bolt (10) and inhale sound cotton (11), its characterized in that: the left end of the draught fan main body (1) is connected with the motor (2), the top end of the draught fan main body (1) is provided with an air inlet end (3), an air inlet cavity (4) is arranged inside the air inlet end (3), meanwhile, a protective frame (12) is arranged at the inlet of the air inlet cavity (4), the side wall of the air inlet cavity (4) below the protective frame (12) is connected with a fixed frame (9) on the first protective cover (7) through a fixing bolt (10), a first sound absorption hole (8) is formed in the first protective cover (7), sound absorption cotton (11) is arranged on the inner sides of the first protective cover (7) and the second protective cover (13), the right end of the draught fan main body (1) is provided with an air outlet end (5), an air outlet cavity (6) is arranged inside the air outlet end (5), and the side wall of the air outlet cavity (6) is connected with the fixed frame (9) on the second protective cover (13) through the fixing bolt, meanwhile, a second sound absorbing hole (14) is formed in the second protective cover (13).
2. The statically-regulated induced draft fan according to claim 1, wherein: the air inlet cavity (4) is communicated with the air outlet cavity (6), and the air inlet cavity (4) is connected with the protective frame (12) through bolts.
3. The statically-regulated induced draft fan according to claim 1, wherein: the first protective cover (7) and the second protective cover (13) are both detachable structures, and the shape structures of the first protective cover (7) and the second protective cover (13) are both annular structures.
4. The statically-regulated induced draft fan according to claim 1, wherein: the first sound absorption holes (8) are uniformly distributed on the first protective cover (7), the first sound absorption holes (8) are obliquely arranged, and the opening direction of the first sound absorption holes (8) is downward.
5. The statically-regulated induced draft fan according to claim 1, wherein: the shape structure of the protection frame (12) is a cross-shaped structure, and the protection frame (12) is positioned above the first protection cover (7).
6. The statically-regulated induced draft fan according to claim 1, wherein: the diameter of the second sound absorption hole (14) is the same as that of the first sound absorption hole (8), and the opening direction of the second sound absorption hole (14) is towards the right.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920514508.1U CN209838726U (en) | 2019-04-16 | 2019-04-16 | Static adjusting draught fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920514508.1U CN209838726U (en) | 2019-04-16 | 2019-04-16 | Static adjusting draught fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209838726U true CN209838726U (en) | 2019-12-24 |
Family
ID=68911765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920514508.1U Expired - Fee Related CN209838726U (en) | 2019-04-16 | 2019-04-16 | Static adjusting draught fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209838726U (en) |
-
2019
- 2019-04-16 CN CN201920514508.1U patent/CN209838726U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191224 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |