CN206647291U - A kind of negative-pressure air fan with silencing function - Google Patents
A kind of negative-pressure air fan with silencing function Download PDFInfo
- Publication number
- CN206647291U CN206647291U CN201720389497.XU CN201720389497U CN206647291U CN 206647291 U CN206647291 U CN 206647291U CN 201720389497 U CN201720389497 U CN 201720389497U CN 206647291 U CN206647291 U CN 206647291U
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- CN
- China
- Prior art keywords
- negative
- pressure air
- air fan
- fixedly connected
- hush pipe
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- 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.)
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Abstract
The utility model discloses a kind of negative-pressure air fan with silencing function, including negative-pressure air fan body, muffler body is fixedly connected with the left of the negative-pressure air fan body, shell is provided with the outside of the negative-pressure air fan body, support is fixedly connected with the middle part of the negative-pressure air fan body, the negative-pressure air fan body is internally provided with inner casing, and the middle part of the inner casing is provided with fan room, the middle part of fan room is provided with fixed block, and the middle part of support is provided with screw.The utility model makes the wind in muffler enter progress first time noise reduction in hush pipe by the first duct set, pass through the bloop opened up on hush pipe, hush pipe is aided in carry out noise reduction, the wind for making muffler by the second duct set converges again, second of noise reduction is carried out by acoustical panel, make negative-pressure air fan that there is erasure effect, reached the advantages of can carrying out noise reduction, so as to effectively solve the problems, such as that existing negative-pressure air fan produces noise considerable influence daily life in use.
Description
Technical field
Blower fan field of mechanical technique is the utility model is related to, specially a kind of negative-pressure air fan with silencing function.
Background technology
Negative-pressure air fan be using cross-ventilation, the cool principle of negative pressure ventilation, be it is a kind of from infield to gate
Or window sucks fresh air naturally, force discharge outdoor rapidly indoor sultry gas, any improper ventilation problem can change
Kind machine.Caused noise is larger in use for existing negative-pressure air fan, influences the daily life of user.
Utility model content
The purpose of this utility model is to provide a kind of negative-pressure air fan with silencing function, and noise reduction can be carried out by possessing
Advantage, solve the problems, such as that existing negative-pressure air fan produces noise considerable influence daily life in use.
To achieve the above object, the utility model provides following technical scheme：A kind of negative-pressure air fan with silencing function,
Including negative-pressure air fan body, muffler body, the negative-pressure air fan body are fixedly connected with the left of the negative-pressure air fan body
Outside be provided with shell, support, the inside of the negative-pressure air fan body are fixedly connected with the middle part of the negative-pressure air fan body
Inner casing is provided with, the middle part of the inner casing is provided with fan room, and the middle part of the fan room is provided with fixed block, the middle part of the support
Provided with screw, the fixed block is fixedly connected by screw with support, and the back side of the fixed block is connected with flabellum, in
Motor is provided with the right side of shell, the front of the motor is fixedly connected with driving wheel, belt is socketed with the outside of the driving wheel,
The driving wheel is rotated by belt drive flabellum, and remittance sound tube, the remittance sound are provided with the right side of the muffler body interior
The first duct set is fixedly connected with the left of pipe, hush pipe, the hush pipe are fixedly connected with the left of first duct set
Outside offer bloop, the second duct set, the left side of second duct set are fixedly connected with the left of the hush pipe
Acoustical panel is fixedly connected with, air outlet is fixedly connected with the left of the acoustical panel.
Preferably, the quantity of the flabellum is six, and six flabellums are fixedly connected in flabellum disk, flabellum disk with
Belt is socketed.
Preferably, the quantity of the hush pipe is five.
Preferably, the noise reduction hole number on the outside of five hush pipes is four.
Preferably, the quantity of the acoustical panel is four.
Compared with prior art, the beneficial effects of the utility model are as follows：
The utility model makes gas by setting air outlet the gas after noise reduction is left in muffler body, by converging sound tube
Noise collection effect in body for the first time disappear to together, making the wind in muffler enter in hush pipe by the first duct set
Sound, by the bloop opened up on hush pipe, auxiliary hush pipe carries out noise reduction, makes the wind of muffler again by the second duct set
Convergence, second of noise reduction is carried out by acoustical panel, after the completion of the second noise reduction, wind is left in muffler by air outlet, makes negative pressure
Blower fan has erasure effect, has reached the advantages of can carrying out noise reduction, is being used so as to effectively solve existing negative-pressure air fan
During produce noise considerable influence daily life the problem of.
Brief description of the drawings
Fig. 1 is the utility model structure diagram；
Fig. 2 is the utility model structural side view；
Fig. 3 is the utility model negative-pressure air fan structural representation；
Fig. 4 is the utility model negative-pressure air fan internal structure schematic diagram；
Fig. 5 is the utility model muffler internal structure schematic diagram.
In figure：1 negative-pressure air fan body, 2 muffler bodies, 3 air outlets, 4 shells, 5 supports, 6 fixing screws, 7 fixed blocks,
8 flabellums, 9 fan room, 10 inner casings, 11 motors, 12 driving wheels, 13 belts, 14 remittance sound tubes, 15 first duct sets, 16 hush pipes, 17
Bloop, 18 second duct sets, 19 acoustical panels.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belong to the scope of the utility model protection.
Refer to Fig. 1-5, a kind of negative-pressure air fan with silencing function, including negative-pressure air fan body 1, negative-pressure air fan body
1 left side is fixedly connected with muffler body 2, and the outside of negative-pressure air fan body 1 is provided with shell 4, in negative-pressure air fan body 1
Portion is fixedly connected with support 5, and negative-pressure air fan body 1 is internally provided with inner casing 10, and the middle part of inner casing 10 is provided with fan room 9, wind
The middle part of fan room 9 is provided with fixed block 7, and the middle part of support 5 is provided with screw 6, and fixed block 7 is fixedly connected by screw 6 with support 5,
The back side of fixed block 7 is connected with flabellum 8, and the right side of institute's inner casing 10 is provided with motor 11, and the front of motor 11 is fixedly connected
There is driving wheel 12, the outside of driving wheel 12 is socketed with belt 13, and the quantity of flabellum 8 is six, and six flabellums 8 are fixedly connected on
In flabellum disk, flabellum disk is socketed with belt 13, and driving wheel 12 drives flabellum 8 to rotate by belt 13, in muffler body 1
Remittance sound tube 14 is provided with the right side of portion, the left side of remittance sound tube 14 is fixedly connected with the first duct set 15, a left side for the first duct set 15
Side is fixedly connected with hush pipe 16, and the quantity of hush pipe 16 is five, and the outside of hush pipe 16 offers bloop 17, and five disappear
The quantity of bloop 17 in the outside of sound tube 16 is four, enters the wind in muffler body 2 by the first duct set 15 and disappears
First time noise reduction is carried out in sound tube 16, by the bloop 17 opened up on hush pipe 16, auxiliary hush pipe 16 carries out noise reduction, noise reduction
The left side of pipe 16 is fixedly connected with the second duct set 18, and the left side of the second duct set 18 is fixedly connected with acoustical panel 19, acoustical panel
19 quantity is four, and the wind for making muffler body 1 by the second duct set 18 converges again, and second is carried out by acoustical panel 19
Secondary noise reduction, after the completion of the second noise reduction, wind is left in muffler body 1 by air outlet 3, negative-pressure air fan body 1 is had noise reduction
Effect, the left side of acoustical panel 19 is fixedly connected with air outlet 3, by setting air outlet 3 gas after noise reduction is left muffler
In body 2, by converge sound tube 14 make noise collection effect in gas to together, reached can carry out noise reduction the advantages of, so as to have
Effect solves the problems, such as that existing negative-pressure air fan produces noise considerable influence daily life in use.
Operation principle：This has the negative-pressure air fan of silencing function in use, driving driving wheel 12 to rotate by motor 11, drives
Driving wheel 12 drives the rotation of flabellum 8 by belt 13, and the rotation of flabellum 8 produces wind, and wind enters muffler sheet by fan room
In body 1, the noise collection effect in gas is set to make to together by the first duct set 15 in muffler body 1 by converging sound tube 14
Wind, which enters, carries out first time noise reduction in hush pipe 16, by the bloop 17 opened up on hush pipe 16, auxiliary hush pipe 16 enters
Row noise reduction, the wind for making muffler body 2 by the second duct set 18 are converged again, and second of noise reduction is carried out by acoustical panel 19,
After the completion of second noise reduction, wind is left in muffler body 2 by air outlet 3, negative-pressure air fan body 1 is had erasure effect, is reached
To the advantages of can carrying out noise reduction.
In summary：This has the negative-pressure air fan of silencing function, by set negative-pressure air fan body 1, muffler body 2,
Support 5, fixing screws 6, fixed block 7, flabellum 8, fan room 9, inner casing 10, motor 11, driving wheel 12, belt 13, converge sound tube 14,
First duct set 15, hush pipe 16, bloop 17, the second duct set 18 and acoustical panel 19, solving existing negative-pressure air fan makes
The problem of noise considerable influence daily life is produced during.
It should be noted that herein, such as first and second or the like relational terms are used merely to a reality
Body or operation make a distinction with another entity or operation, and not necessarily require or imply and deposited between these entities or operation
In any this actual relation or order.Moreover, term " comprising ", "comprising" or its any other variant are intended to
Nonexcludability includes, so that process, method, article or equipment including a series of elements not only will including those
Element, but also the other element including being not expressly set out, or it is this process, method, article or equipment also to include
Intrinsic key element.In the absence of more restrictions.By sentence " including one ... the key element limited, it is not excluded that
Other identical element in the process including the key element, method, article or equipment also be present ".
While there has been shown and described that embodiment of the present utility model, for the ordinary skill in the art,
It is appreciated that these embodiments can be carried out with a variety of changes in the case where not departing from principle of the present utility model and spirit, repaiied
Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.
Claims (5)
1. a kind of negative-pressure air fan with silencing function, including negative-pressure air fan body（1）, it is characterised in that：The negative-pressure air fan
Body（1）Left side be fixedly connected with muffler body（2）, the negative-pressure air fan body（1）Outside be provided with shell（4）,
The negative-pressure air fan body（1）Middle part be fixedly connected with support（5）, the negative-pressure air fan body（1）Be internally provided with
Shell（10）, the inner casing（10）Middle part be provided with fan room（9）, the fan room（9）Middle part be provided with fixed block（7）, it is described
Support（5）Middle part be provided with screw（6）, the fixed block（7）Pass through screw（6）With support（5）It is fixedly connected, the fixed block
（7）The back side be connected with flabellum（8）, institute's inner casing（10）Right side be provided with motor（11）, the motor（11）Front
It is fixedly connected with driving wheel（12）, the driving wheel（12）Outside be socketed with belt（13）, the driving wheel（12）Pass through skin
Band（13）Drive flabellum（8）Rotate, the muffler body（1）Internal right side is provided with remittance sound tube（14）, the remittance sound tube
（14）Left side be fixedly connected with the first duct set（15）, first duct set（15）Left side be fixedly connected with hush pipe
（16）, the hush pipe（16）Outside offer bloop（17）, the hush pipe（16）Left side be fixedly connected with second
Duct set（18）, second duct set（18）Left side be fixedly connected with acoustical panel（19）, the acoustical panel（19）Left side
It is fixedly connected with air outlet（3）.
A kind of 2. negative-pressure air fan with silencing function according to claim 1, it is characterised in that：The flabellum（8）'s
Quantity is six, and six flabellums（8）It is fixedly connected in flabellum disk, flabellum disk and belt（13）It is socketed.
A kind of 3. negative-pressure air fan with silencing function according to claim 1, it is characterised in that：The hush pipe（16）
Quantity be five.
A kind of 4. negative-pressure air fan with silencing function according to claim 1 or 3, it is characterised in that：Disappear described in five
Sound tube（16）The bloop in outside（17）Quantity is four.
A kind of 5. negative-pressure air fan with silencing function according to claim 1, it is characterised in that：The acoustical panel（19）
Quantity be four.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720389497.XU CN206647291U (en) | 2017-04-14 | 2017-04-14 | A kind of negative-pressure air fan with silencing function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720389497.XU CN206647291U (en) | 2017-04-14 | 2017-04-14 | A kind of negative-pressure air fan with silencing function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206647291U true CN206647291U (en) | 2017-11-17 |
Family
ID=60275249
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720389497.XU Expired - Fee Related CN206647291U (en) | 2017-04-14 | 2017-04-14 | A kind of negative-pressure air fan with silencing function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206647291U (en) |
-
2017
- 2017-04-14 CN CN201720389497.XU patent/CN206647291U/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: 20171117 Termination date: 20190414 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |