CN220791598U - Noise reduction structure for air outlet of centrifugal fan - Google Patents
Noise reduction structure for air outlet of centrifugal fan Download PDFInfo
- Publication number
- CN220791598U CN220791598U CN202322175111.3U CN202322175111U CN220791598U CN 220791598 U CN220791598 U CN 220791598U CN 202322175111 U CN202322175111 U CN 202322175111U CN 220791598 U CN220791598 U CN 220791598U
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- frame
- fixed
- fixedly connected
- noise reduction
- air outlet
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- 230000009467 reduction Effects 0.000 title claims abstract description 28
- 230000007246 mechanism Effects 0.000 claims abstract description 20
- 238000009434 installation Methods 0.000 claims description 14
- 230000000670 limiting effect Effects 0.000 claims description 12
- 230000000694 effects Effects 0.000 claims description 7
- 230000030279 gene silencing Effects 0.000 claims description 4
- 239000003381 stabilizer Substances 0.000 claims description 4
- 230000036961 partial effect Effects 0.000 abstract description 4
- 230000001681 protective effect Effects 0.000 abstract description 3
- 238000010521 absorption reaction Methods 0.000 abstract 1
- 230000006835 compression Effects 0.000 description 7
- 238000007906 compression Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 4
- 230000002829 reductive effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000001743 silencing effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a noise reduction structure of an air outlet of a centrifugal fan, which comprises a fixed mounting frame, wherein one end of the fixed mounting frame is fixedly connected with a fixed connecting cover, the other end of the fixed mounting frame is fixedly connected with a noise reduction mechanism, the outer side of the surface of the fixed connecting cover is fixedly connected with a fixed discharge pipe, one end of the inner side of the fixed discharge pipe is fixedly connected with a fixing frame, one side of the fixing frame is fixedly connected with a protective net, the noise reduction mechanism comprises a first frame and a second frame, and the inner sides of the first frame and the second frame are movably connected with noise absorption sponge. This structure of making an uproar falls in centrifugal fan air outlet can shunt the air of air outlet through noise reduction mechanism, reduces the air velocity, with partial air delivery to fixed connection cover can improve the capacity, and the fixed discharge pipe of rethread can be with remaining most air discharge, can effectually reduce the noise that the air flow caused, convenient operation.
Description
Technical Field
The utility model belongs to the technical field of noise reduction of centrifugal fans, and particularly relates to a noise reduction structure of an air outlet of a centrifugal fan.
Background
The centrifugal fan is a driven fluid machine which can increase the pressure of gas and discharge the gas by means of the input mechanical energy, and the noise of an air outlet is reduced by adopting a noise reduction structure when the centrifugal fan is used.
The existing noise reduction structure has the following problems when in use:
1. In the use process of the existing noise reduction structure, the caliber of an air outlet is usually increased, the volume in the air outlet is increased to reduce the flow velocity of air, so that the integral noise is reduced, the stroke of the air is required to be increased, the integral noise reduction structure is increased in volume, and the use is inconvenient;
2. when the existing noise reduction structure is used, the end part of the existing noise reduction structure is usually connected and fixed with an air outlet on the surface of the centrifugal fan through a plurality of bolts, and the existing noise reduction structure is complex in operation and inconvenient to operate in the process of disassembly and assembly.
Disclosure of utility model
The utility model aims to provide a noise reduction structure for an air outlet of a centrifugal fan, which aims to solve the technical problems in the background technology.
In order to achieve the above purpose, the specific technical scheme of the utility model is as follows: the utility model provides a structure of making an uproar falls in centrifugal fan air outlet, includes the fixed mounting frame, the one end fixedly connected with fixed connection cover of fixed mounting frame, the other end fixedly connected with amortization mechanism of fixed mounting frame, the fixed discharge pipe of surface outside fixedly connected with of fixed connection cover, the inboard one end fixedly connected with mount of fixed discharge pipe, one side fixedly connected with protection network of mount.
Preferably, one end fixedly connected with fixed connection board of amortization mechanism, movable spacing frame has been cup jointed in the activity of fixed connection board's surface outside, movable spacing frame's surface outside fixedly connected with installation stabilizer blade, movable spacing frame's surface fixedly connected with connects stop gear, fixed through-hole has been seted up on fixed connection board's surface.
Preferably, the silencing mechanism comprises a first frame and a second frame, sound absorbing sponge is movably connected to the inner sides of the first frame and the second frame, second through holes are formed in the surface of the first frame, first through holes are formed in the surface of the second frame, and a fixed guide plate is fixedly connected to the inner side surface of the second frame.
Preferably, the number of the fixed guide plates is a plurality, and the fixed guide plates are obliquely and equidistantly arranged on the inner side of the second frame.
Preferably, the connection limiting mechanism comprises a concave installation frame, a movable inserted link is movably connected in the concave installation frame, a stress lantern ring is fixedly sleeved on the outer side of the surface of the movable inserted link, a stress spring is fixedly connected with one side of the stress lantern ring and one end of the inner side of the concave installation frame, and a connection pull block is fixedly connected with one end of the movable inserted link.
Preferably, the other end of the movable inserted link is provided with a pressed inclined plane, and the other end of the movable inserted link is mutually attached to the inner side of the fixed through hole.
The noise reduction structure of the air outlet of the centrifugal fan has the following advantages:
1. This structure of making an uproar falls in centrifugal fan air outlet can shunt the air of air outlet through noise reduction mechanism, reduces the air velocity, with partial air delivery to fixed connection cover can improve the capacity, and the fixed discharge pipe of rethread can be with remaining most air discharge, can effectually reduce the noise that the air flow caused, convenient operation.
2. This structure of making an uproar falls in centrifugal fan air outlet through fixed connection board, activity limit frame and connection stop gear, connects fixedly through the bolt between installation stabilizer blade and the centrifugal fan, then with fixed connection board card in the inboard of activity limit frame for fixed connection board can cooperate between with connection stop gear, thereby can be quick install, only need adjust connection stop gear at subsequent dismantlement in-process, just can be quick dismantlement, convenient to use.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is a schematic diagram of the overall exploded structure of the present utility model;
FIG. 3 is a schematic view of the muffler mechanism according to the present utility model;
fig. 4 is a schematic structural view of a connection limiting mechanism of the present utility model.
The figure indicates: 1. a fixed mounting frame; 2. a fixed connection cover; 3. fixing a discharge pipe; 4. a fixing frame; 5. a protective net; 6. a silencing mechanism; 7. fixing the connecting plate; 8. a movable limit frame; 9. mounting support legs; 10. connecting with a limit mechanism; 11. a fixing through hole; 12. a first frame; 13. a second frame; 14. a first through hole; 15. a second through hole; 16. a sound absorbing sponge; 17. fixing a guide plate; 18. a concave mounting frame; 19. a movable inserted link; 20. a stressed collar; 21. a force spring; 22. connecting a pull block; 23. a pressed inclined plane.
Detailed Description
Hereinafter, only certain exemplary embodiments are briefly described. As will be recognized by those of skill in the pertinent art, the described embodiments may be modified in numerous different ways without departing from the spirit or scope of the embodiments of the present utility model. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive.
In the description of the embodiments of the present utility model, it should be understood that the terms "length," "vertical," "horizontal," "top," "bottom," and the like indicate an orientation or a positional relationship based on that shown in the drawings, and are merely for convenience in describing the embodiments of the present utility model and to simplify the description, rather than to indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the embodiments of the present utility model.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the embodiments of the present utility model, the meaning of "plurality" is two or more, unless explicitly defined otherwise.
In the embodiments of the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured" and the like are to be construed broadly and include, for example, either permanently connected, removably connected, or integrally formed; the device can be mechanically connected, electrically connected and communicated; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the embodiments of the present utility model will be understood by those of ordinary skill in the art according to specific circumstances.
The following disclosure provides many different implementations, or examples, for implementing different configurations of embodiments of the utility model. In order to simplify the disclosure of embodiments of the present utility model, components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit embodiments of the present utility model. Furthermore, embodiments of the present utility model may repeat reference numerals and/or letters in the various examples, which are for the purpose of brevity and clarity, and which do not themselves indicate the relationship between the various embodiments and/or arrangements discussed.
In order to better understand the purpose, structure and function of the present utility model, the following describes a noise reduction structure of an air outlet of a centrifugal fan in detail with reference to the accompanying drawings.
As shown in fig. 1-4, the noise reduction structure for the air outlet of the centrifugal fan comprises a fixed installation frame 1, wherein one end of the fixed installation frame 1 is fixedly connected with a fixed connection cover 2, the other end of the fixed installation frame 1 is fixedly connected with a noise reduction mechanism 6, the outer side of the surface of the fixed connection cover 2 is fixedly connected with a fixed discharge pipe 3, one end of the inner side of the fixed discharge pipe 3 is fixedly connected with a fixed frame 4, and one side of the fixed frame 4 is fixedly connected with a protective net 5.
One end fixedly connected with fixed connection board 7 of amortization mechanism 6, the activity of the surface outside activity of fixed connection board 7 has cup jointed movable spacing frame 8, and the surface outside fixedly connected with installation stabilizer blade 9 of movable spacing frame 8, the surface fixedly connected with of movable spacing frame 8 connects stop gear 10, and fixed through-hole 11 has been seted up on the surface of fixed connection board 7.
The silencing mechanism 6 comprises a first frame 12 and a second frame 13, wherein sound absorbing sponge 16 is movably connected to the inner sides of the first frame 12 and the second frame 13, second through holes 15 are formed in the surface of the first frame 12, first through holes 14 are formed in the surface of the second frame 13, fixed guide plates 17 are fixedly connected to the inner side surface of the second frame 13, and are convenient for guiding air when the air flows, the fixed guide plates 17 can guide the air, partial air can flow to the inner sides and the outer sides of the first frame 12 and the second frame 13 through the first through holes 14 and the second through holes 15, and the air is absorbed and dissipated through the sound absorbing sponge 16, so that noise volume caused when the air flows out is reduced.
The fixed guide plates 17 are a plurality of, and the fixed guide plates 17 are obliquely and equidistantly arranged on the inner side of the second frame 13, so that the air quantity flowing to the inner sides of the first frame 12 and the second frame 13 can be conveniently increased, and the overall silencing effect is further improved.
The connection limiting mechanism 10 comprises a concave installation frame 18, a movable inserted link 19 is movably connected inside the concave installation frame 18, a stress lantern ring 20 is fixedly sleeved on the outer side of the surface of the movable inserted link 19, a stress spring 21 is fixedly connected to one side of the stress lantern ring 20 and the inner side of the concave installation frame 18, one end of the movable inserted link 19 is fixedly connected with a connection pull block 22, the connection pull block 22 is convenient to pull, the movable inserted link 19 is driven to move, the stress lantern ring 20 is driven to move, compression is caused on the stress spring 21, the end part of the movable inserted link 19 can be pulled out from the inner side of the fixed through hole 11, and accordingly the fixed connection plate 7 and the movable limiting frame 8 can be quickly detached, and the whole structure can be quickly detached, so that the operation is convenient.
The other end of movable inserted link 19 has offered pressurized inclined plane 23, the other end of movable inserted link 19 is laminated each other with the inboard of fixed through-hole 11, be convenient for fixed connection board 7 when blocking the installation to the inboard of movable limiting frame 8, fixed connection board 7's edge can cause the extrusion to pressurized inclined plane 23 for movable inserted link 19 can remove, drive atress lantern ring 20 and remove, compress atress spring 21, when the inboard of movable limiting frame 8 is gone into to the complete card of fixed connection board 7, movable inserted link 19 can reset by oneself when atress lantern ring 20 receives the effect of atress spring 21, insert the inboard of fixed through-hole 11, connect fixedly between fixed connection board 7 and the movable limiting frame 8, and convenient operation.
The working principle of the noise reduction structure of the air outlet of the centrifugal fan is as follows: in the in-process of using, fixed guide plate 17 can be to the air water conservancy diversion, make partial air can flow to the inboard and the outside of first frame 12 and second frame 13 through first through-hole 14 and second through-hole 15, and absorb the energy dissipation through inhaling the sponge 16 to the air, and then noise volume that causes when reducing the air outflow, the inside that the air of remaining part can get into fixed connection cover 2 is cushioned, then discharge outside through fixed discharge pipe 3, can effectually reduce noise, then when dismantling, the pulling connection pull block 22 drives movable plunger 19 and removes, and then drive the atress lantern ring 20 and remove, cause the compression to atress spring 21, make the tip of movable plunger 19 can follow the inboard of fixed through-hole 11 and take out, thereby can dismantle the separation to the fixed connection plate 7 and movable limiting frame 8 fast, when installing, the fixed connection plate 7 inserts the inboard of movable limiting frame 8, the edge of fixed connection plate 7 can cause the extrusion to inclined plane 23, make movable plunger 19 can remove the effective noise reduction, can carry out the compression to the lantern ring 20 when carrying out the fixed connection frame 21, the atress spring 21 is gone into to the fixed connection frame that the inside is complete, the atress ring 21 is carried out the compression, the fixed connection is carried out to the compression to the fixed connection frame is easy, when the atress ring 21 is moved, the fixed connection is carried out the fixed during the frame is moved to the fixed compression, the atress ring is moved to the fixed connection is moved to the frame is moved to the fixed by the fixed connection is carried out, and the fixed connection is moved by the fixed connection is carried out to the fixed compression the fixed frame is moved to the side to the inside the side is moved to the fixed, and is used by the fixed frame 8.
It will be understood that the utility model has been described in terms of several embodiments, and that various changes and equivalents may be made to these features and embodiments by those skilled in the art without departing from the spirit and scope of the utility model. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the utility model without departing from the essential scope thereof. Therefore, it is intended that the utility model not be limited to the particular embodiment disclosed, but that the utility model will include all embodiments falling within the scope of the appended claims.
Claims (6)
1. The utility model provides a centrifugal fan air outlet structure of making an uproar falls, includes fixed mounting frame (1), its characterized in that: one end fixedly connected with fixed connection cover (2) of fixed mounting frame (1), the other end fixedly connected with amortization mechanism (6) of fixed mounting frame (1), the surface outside fixedly connected with fixed discharge pipe (3) of fixed connection cover (2), the inboard one end fixedly connected with mount (4) of fixed discharge pipe (3), one side fixedly connected with protection network (5) of mount (4).
2. The noise reduction structure for an air outlet of a centrifugal fan according to claim 1, wherein: one end fixedly connected with fixed connection board (7) of amortization mechanism (6), movable spacing frame (8) have been cup jointed in the activity of fixed connection board (7)'s surface outside, the surface outside fixedly connected with installation stabilizer blade (9) of movable spacing frame (8), the fixed connection of surface fixedly connected with of movable spacing frame (8) connects stop gear (10), fixed through-hole (11) have been seted up on the surface of fixed connection board (7).
3. The noise reduction structure for an air outlet of a centrifugal fan according to claim 1, wherein: the silencing mechanism (6) comprises a first frame (12) and a second frame (13), sound absorbing sponge (16) is movably connected to the inner sides of the first frame (12) and the second frame (13), second through holes (15) are formed in the surface of the first frame (12), first through holes (14) are formed in the surface of the second frame (13), and a fixed guide plate (17) is fixedly connected to the inner side surface of the second frame (13).
4. A centrifugal fan air outlet noise reduction structure according to claim 3, wherein: the number of the fixed guide plates (17) is a plurality, and the fixed guide plates (17) are obliquely and equidistantly arranged on the inner side of the second frame (13).
5. The noise reduction structure for an air outlet of a centrifugal fan according to claim 2, wherein: the connecting limiting mechanism (10) comprises a concave mounting frame (18), a movable inserted link (19) is movably connected inside the concave mounting frame (18), a stress lantern ring (20) is fixedly sleeved on the outer side of the surface of the movable inserted link (19), a stress spring (21) is fixedly connected with one side of the stress lantern ring (20) and one end of the inner side of the concave mounting frame (18), and a connecting pull block (22) is fixedly connected with one end of the movable inserted link (19).
6. The noise reduction structure for an air outlet of a centrifugal fan according to claim 5, wherein: the other end of the movable inserted link (19) is provided with a pressed inclined plane (23), and the other end of the movable inserted link (19) is mutually attached to the inner side of the fixed through hole (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322175111.3U CN220791598U (en) | 2023-08-14 | 2023-08-14 | Noise reduction structure for air outlet of centrifugal fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322175111.3U CN220791598U (en) | 2023-08-14 | 2023-08-14 | Noise reduction structure for air outlet of centrifugal fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220791598U true CN220791598U (en) | 2024-04-16 |
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ID=90637308
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322175111.3U Active CN220791598U (en) | 2023-08-14 | 2023-08-14 | Noise reduction structure for air outlet of centrifugal fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220791598U (en) |
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2023
- 2023-08-14 CN CN202322175111.3U patent/CN220791598U/en active Active
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