CN212130913U - Improved banana-shaped jet fan - Google Patents
Improved banana-shaped jet fan Download PDFInfo
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- CN212130913U CN212130913U CN202020580564.8U CN202020580564U CN212130913U CN 212130913 U CN212130913 U CN 212130913U CN 202020580564 U CN202020580564 U CN 202020580564U CN 212130913 U CN212130913 U CN 212130913U
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- silencer
- jet fan
- silencing
- fan
- air hole
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Abstract
The utility model discloses an improved generation banana type jet fan, including jet fan, the silencer of oblique wind hole export down of noise elimination is respectively installed at jet fan's both ends, establishes air intake to the air outlet in the silencer barrel of silencer and inclines the oblique wind hole of noise elimination that extends down gradually, and two silencers are connected with jet fan's both ends respectively, and the oblique wind hole air intake of noise elimination is in the concentricity of silencer barrel, and the air outlet downward sloping in oblique wind hole of noise elimination extends, the utility model discloses a silencer has adopted the central line in oblique wind hole of noise elimination and the central line of silencer barrel to form the structure of contained angle down, has cancelled the bevel washer commonly used and can make jet fan both ends air supply downwards, has reduced banana type jet fan's manufacturing cost.
Description
Technical Field
The utility model belongs to the technical field of an air supply facility class technique and specifically relates to an improved generation banana type jet fan.
Background
All need to install the banana type efflux fan that both ends wind gap is down in the tunnel, as shown in fig. 4, fig. 5: in the first banana-type jet fan 1004, an included angle a1 is formed between an air channel of a middle first jet fan 1001 and air channels of first silencers 1003 at two ends, the air channels of the first silencers 1003 incline downwards, the installation structure is that inclined gaskets 1002 are arranged at two ends of the first jet fan 1001, an air duct end of each inclined gasket 1002 is connected with an air channel end of the first jet fan 1001, a silencer end of each inclined gasket 1002 is an inclined surface, the inclined surface is connected with the straight first silencer 1003, an air duct included angle B between the air duct end of each inclined gasket 1002 and the inclined gaskets 1002 is ninety degrees, a silencer end of each inclined gasket 1002 is an inclined surface, an included angle C between the inclined gasket 1002 and an air channel downward angle a1 of the first banana-type jet fan 1004 is a complementary angle, and the structure of fig. 4 and 5 shows that the conventional first banana-type jet fan 1004 is assembled by the middle first jet fan 1001, the two inclined gaskets 1002 and the two straight first silencer 1003, and the straight silencer 1003 with the included angle C between the inclined gaskets 1002 and the inclined gaskets 1003 downwards The disadvantages of the above-described structure are: the integral weight of the banana-type jet fan I1004; secondly, two inclined washers 1002 are needed, and the material cost and the processing cost of the first banana-shaped jet fan 1004 are increased; and thirdly, the connecting flange ends of the middle first jet fan 1001, the two inclined gaskets 1002 and the straight cylindrical first silencer 1003 are all required to be fixed by bolts, the connection is called double connection in the industry, the jet fan in the tunnel is hung above the tunnel, and more connecting ends increase more potential safety hazards at the same time.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome above-mentioned prior art not enough, provide an improved generation banana type jet fan, including jet fan, the silencer of oblique wind hole export down of noise elimination is respectively installed at jet fan's both ends, establishes the oblique wind hole of noise elimination that the air intake extends to the air outlet slope gradually down in the silencer barrel of silencer, and two silencers are connected with jet fan's both ends respectively, and the oblique wind hole air intake of noise elimination is in the concentricity of silencer barrel, and the air outlet downward sloping in oblique wind hole of noise elimination extends, the utility model discloses a silencer has adopted the central line in oblique wind hole of noise elimination and the central line of silencer barrel to form the structure of contained angle down, has cancelled the packing washer commonly used and can make the air supply downwards in jet fan both ends, has reduced banana type jet fan's manufacturing.
In order to achieve the purpose, the utility model provides an improved banana-shaped jet fan, which comprises a jet fan, wherein two ends of the jet fan are respectively provided with a silencer with a downward silencing inclined air hole outlet, and the air outlet end of the silencer is the same as the outer circumference of the silencer in the circle center;
a silencing inclined air hole is formed in a silencer barrel of the silencer, a plurality of connecting supports are arranged on the outer circumference of an air inlet end of the silencing inclined air hole, lengthened connecting supports are arranged on the positions, facing opposite to the outlet of the silencing inclined air hole, of the outer circumference of the air inlet end of the silencing inclined air hole, and open grooves are formed in the top of the lengthened connecting supports;
the lengthened connecting support and the connecting support are both provided with through holes;
the two silencers are respectively connected with two ends of the jet flow fan, and the silencers are fixedly connected with the end face of the jet flow fan after the fixing screws penetrate through the through holes.
And further arranging that the air inlet of the silencing inclined air hole of the silencer is concentric with the silencer cylinder, and the air outlet of the silencing inclined air hole extends downwards.
And further arranging that after two ends of the jet fan are connected with the silencer, an air supply outlet of the jet fan is concentrically butted with an air inlet of the silencing inclined air hole.
And after the two ends of the jet flow fan are connected with the silencer, the central line of the air supply channel of the jet flow fan and the central line of the silencing inclined air hole extending downwards form an included angle A which is consistent with the included angle A1 of the banana-type jet flow fan I.
And further setting an included angle A between the central line of the silencing inclined air hole and the central line of the silencer cylinder.
The utility model has the advantages that: the utility model discloses a silencer has adopted the central line of the oblique wind hole of noise elimination and the central line of the silencer barrel to form the structure of contained angle down, has cancelled the bevel washer commonly used and can make jet fan both ends air supply downwards, has reduced banana type jet fan's manufacturing cost.
Drawings
FIG. 1 is a schematic view of the present invention;
FIG. 2 is a schematic view of the muffler of FIG. 1;
FIG. 3 is a right side view of the muffler of FIG. 1;
FIG. 4 is a schematic view of a banana-type jet fan I;
fig. 5 is a schematic view of the bevel washer of fig. 3.
In the figure: the silencer comprises a jet fan 1, a silencer 2, a silencer barrel 201, a connecting support 202, a lengthened connecting support 203, an open groove 204, a through hole 205, a fixing screw 3, a silencing inclined air hole 4, a transition arc surface 401, a first jet fan 1001, an inclined gasket 1002, a first silencer 1003 and a first banana-shaped jet fan 1004.
Detailed Description
As shown in fig. 1 to 3: the technical scheme of the utility model is further concretely explained, an improved banana-type jet fan, a silencer 2 with a downward outlet of a silencing inclined air hole 4 is respectively arranged at two ends of a jet fan 1, an air outlet end of the silencer 2 is the same circle center as the outer circumference of the silencer 2, the silencing inclined air hole 4 is arranged in a silencer cylinder 201 of the silencer 2, an air inlet end of the silencing inclined air hole 4 is connected with the circle center of an air duct of the jet fan 1, the wall thickness of an air outlet of the silencing inclined air hole 4 of the silencer 2 is equal, the silencing effect is good, the air outlet of the silencing inclined air hole 4 extends outwards and downwards to form the banana-type jet fan with two outward and downward ventilation ends, in practical application, the lower end of an air inlet at the end, connected with the air duct, of the jet flow fan 1 is provided with a transition cambered surface 401, so that smooth transition of air supply of the air duct of the jet flow fan 1 is facilitated to enter the silencing inclined air hole 4.
One of the connection supports fixed with the jet flow fan 1 on the circumference of the silencer 2 is a lengthened connection support 203, the top of the connection support is provided with an open slot 204, the position of the lengthened connection support 203 is generally opposite to the downward ventilation opening direction of the silencing inclined air hole 4, and therefore identification is convenient.
After the two ends of the jet flow fan 1 are connected with the silencer 2, the air supply outlet of the jet flow fan 1 is concentrically butted with the air inlet of the silencing inclined air hole 4, so that the air of the jet flow fan 1 and the silencer 2 smoothly flow.
After the two ends of the jet flow fan 1 are connected with the silencer 2, an included angle A is formed between the center line of the air supply channel of the jet flow fan 1 and the center line of the downwards extending silencing inclined air hole 4 and is consistent with the included angle A1 of the banana-shaped jet flow fan I1004.
The included angle between the central line of the silencing inclined air hole 4 and the central line of the silencer cylinder 201 is A, and the angle value of the included angle A can be adjusted according to actual requirements.
The utility model discloses a silencer has adopted the central line of the oblique wind hole of noise elimination 4 and the central line of the silencer barrel to form the structure of contained angle down, actually is the silencer of oblique wind hole, the wind channel that the silencer is down is by silencer self oblique wind hole of noise elimination 4 from structural formation down, the bevel washer that has cancelled commonly used can make jet fan both ends air supply downwards, the manufacturing cost of banana type jet fan has been reduced, and be lug connection between jet fan 1 and silencer 2, be called single connection in the trade, greatly reduced banana type jet fan structural connection's potential safety hazard.
During installation, the two ends of the jet fan 1 are connected with the silencer 2 with the silencing inclined air holes 4, the silencing inclined air holes 4 of the two silencers 2 are consistent in orientation, the function and the effect of the banana-type jet fan are achieved, the overall weight is reduced, the material cost is reduced, and the effect is achieved.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention.
Claims (5)
1. The utility model provides an improved generation banana type efflux fan which characterized in that: the silencer comprises a jet fan (1), wherein two ends of the jet fan (1) are respectively provided with a silencer (2) with a downward silencing inclined air hole (4), and the air outlet end of the silencer (2) is the same as the circle center of the outer circumference of the silencer (2);
a silencing inclined air hole (4) is formed in a silencer barrel body (201) of the silencer (2), a plurality of connecting supports (202) are arranged on the outer circumference of an air inlet end of the silencing inclined air hole (4), lengthened connecting supports (203) are arranged on the positions, facing opposite to the outlet of the silencing inclined air hole (4), of the outer circumference of the air inlet end of the silencing inclined air hole (4), and open grooves (204) are formed in the tops of the lengthened connecting supports (203);
the lengthened connecting support (203) and the connecting support (202) are both provided with through holes (205);
two silencers (2) are respectively connected with two ends of the jet flow fan (1), and the silencers (2) are fixedly connected with the end face of the jet flow fan (1) after the fixing screws (3) penetrate through the through holes (205).
2. The improved banana-type jet fan of claim 1 further comprising: the air inlet of the silencing inclined air hole (4) of the silencer (2) is concentric with the silencer cylinder body (201), and the air outlet of the silencing inclined air hole (4) extends downwards in a downward inclined mode.
3. The improved banana-type jet fan of claim 1 further comprising: after the two ends of the jet fan (1) are connected with the silencer (2), the air supply outlet of the jet fan (1) is concentrically butted with the air inlet of the silencing inclined air hole (4).
4. The improved banana-type jet fan of claim 1 further comprising: after the two ends of the jet fan (1) are connected with the silencer (2), the central line of the air supply channel of the jet fan (1) and the central line of the silencing inclined air hole (4) extending downwards form an included angle A which is consistent with the included angle A1 of the banana-shaped jet fan I (1004).
5. The improved banana-type jet fan of claim 1 further comprising: and the included angle between the central line of the silencing inclined air hole (4) and the central line of the silencer cylinder body (201) is A.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020580564.8U CN212130913U (en) | 2020-04-18 | 2020-04-18 | Improved banana-shaped jet fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020580564.8U CN212130913U (en) | 2020-04-18 | 2020-04-18 | Improved banana-shaped jet fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212130913U true CN212130913U (en) | 2020-12-11 |
Family
ID=73689052
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020580564.8U Active CN212130913U (en) | 2020-04-18 | 2020-04-18 | Improved banana-shaped jet fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212130913U (en) |
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2020
- 2020-04-18 CN CN202020580564.8U patent/CN212130913U/en active Active
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