CN209430496U - A kind of muffler - Google Patents
A kind of muffler Download PDFInfo
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- CN209430496U CN209430496U CN201821987946.1U CN201821987946U CN209430496U CN 209430496 U CN209430496 U CN 209430496U CN 201821987946 U CN201821987946 U CN 201821987946U CN 209430496 U CN209430496 U CN 209430496U
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- sound
- cabinet
- muffler
- air
- air inlet
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Abstract
The utility model provides a kind of muffler, it is further improved as scheme, including cabinet, the air inlet and air outlet of cabinet opposite sides, cabinet is hollow structure, and it further includes several sound gobos set on box house that the channel peripheral wall of air inlet to air outlet, which is equipped with noise reduction layer, noise reduction ventilating duct is arranged in parallel and formed between several sound gobos, and air inlet, noise reduction ventilating duct and air outlet are sequentially connected.By the way that sound gobo is designed to that the annular airflow before air inlet is converted needle jet stream by parallelly distribute on, to realize the friction for reducing air-flow and blower tube wall, when air-flow passes through in muffler simultaneously, sound gobo absorbs the noise that air-flow is generated with muffler friction, reaches whole sound-deadening and noise-reducing effect.
Description
Technical field
The utility model relates to noise reduction machinery field more particularly to a kind of mufflers.
Background technique
In Tunnel Project construction, in order to accelerate project process, circulating work is generally used, is operation in 24 hours, by
Remote mountain area is had focused largely in Tunnel Project, worker is typically all to live near tunnel face, first is that in order to reduce work
The time of people to working region prevents unnecessary accident second is that facilitating the management of worker.
During tunnel construction, need to carry out exhausting and air-supply in tunnel, during which tunnel fan operation in 24 hours produces
Serious noise pollution has been given birth to, the rest of worker is influenced, in the prior art, has not there is setting for tunnel fan noise temporarily
It is standby.
In view of this, to solve the above-mentioned problems, a kind of muffler is provided for reducing the noise of tunnel fan.
Summary of the invention
The purpose of this utility model is to provide a kind of mufflers, by the way that sound gobo is designed to that parallelly distribute on will enter the wind
Annular airflow before mouthful is converted into needle jet stream, to realize the friction for reducing air-flow and blower tube wall, while air-flow is in muffler
In by when, sound gobo by air-flow and muffler friction generation noise absorb, reach whole sound-deadening and noise-reducing effect.
The technology that the utility model uses is:
A kind of muffler is further improved as scheme, including cabinet, the air inlet of cabinet opposite sides and outlet air
Mouthful, cabinet is hollow structure, and it further includes set on the several of box house that the channel peripheral wall of air inlet to air outlet, which is equipped with noise reduction layer,
Sound gobo, is arranged in parallel and is formed noise reduction ventilating duct between several sound gobos, air inlet, noise reduction ventilating duct and air outlet according to
Secondary connection.By the way that sound gobo is designed to that the annular airflow before air inlet is converted needle jet stream by parallelly distribute on, to realize
The friction of air-flow and blower tube wall is reduced, while when air-flow passes through in muffler, sound gobo is by air-flow and muffler friction
The noise of generation is absorbed, and whole sound-deadening and noise-reducing effect is reached.
It is further improved as scheme, cabinet is square structure, and sound gobo is square structure.Cabinet uses production most
For easy square structure, overall complexity is reduced.
It is further improved as scheme, several sound gobo longitudinal directions parallelly distribute on or horizontally-parallel distribution.Sound gobo
Using vertical or horizontal distribution, sound gobo is identical square structure at this time, and part consistency improves, and difficulty of processing reduces.
It is further improved as scheme, interval is greater than or equal to the width of sound gobo between sound gobo.Noise reduction every
Interval too small between plate, will lead to that air inlet intake is too small, and blower ventilation effect is bad.The rationally interval of control sound gobo
It controls intake, guarantees ventilation effect, also guarantee erasure effect.
It is further improved as scheme, sound gobo includes outline border, silencing cotton and support member, and silencing cotton is placed in outline border
Between, support member is placed in outside silencing cotton and connect with outline border.In such a way that outline border and support member are fixed by silencing cotton,
Simple processing.
It is further improved as scheme, the material of outline border is angle bar, and support member is wire netting.Zero of sound gobo
Part obtains easy using angle bar and wire netting most commonly seen in building site, raw material.
It is further improved as scheme, further includes blower connecting flange, blower connecting flange is connect with air outlet.Blower
The blower that connecting flange shape connects as needed carries out mating production can be by muffler when needed using flange arrangement
It is mounted on blower, disassembly when not needing.
It is further improved as scheme, further includes pedestal shelf, pedestal shelf is connect with the bottom of box.Set on pony sill
Son is for making the matched of muffler Yu fan wind inleting tube road.
Compared with prior art, the utility model has the beneficial effects that
Using muffler provided by the utility model, by being designed to parallelly distribute on by the ring before air inlet sound gobo
Shape it is stream reforming be needle jet stream, thus realize reduce air-flow and blower tube wall friction, while air-flow in muffler pass through when,
Sound gobo absorbs the noise that air-flow is generated with muffler friction, reaches whole sound-deadening and noise-reducing effect.
By the way that cabinet and sound gobo are arranged to square structure, so that device is whole easy, it is easy production, cost of manufacture
It is low, it is practical.
By blower connecting flange and pony sill, so that muffler becomes detachable device, the structure after connecting with blower
Also more stable.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram figure of muffler provided by the utility model；
Fig. 2 is a kind of longitudinal sectional view of the main view of muffler provided by the utility model；
Fig. 3 is a kind of structural schematic diagram of the sound gobo of muffler provided by the utility model；
Fig. 4 is the fragmentary view that view is broken in a kind of longitudinal direction of the sound gobo of muffler provided by the utility model.
Specific embodiment
The utility model is described in detail in each embodiment shown in reference to the accompanying drawing, but it should be stated that,
These embodiments are not limitation of the utility model, those of ordinary skill in the art according to these embodiments made by function
Energy, method or equivalent transformation or substitution in structure, belong within the protection scope of the utility model.
In the description of the present embodiment, it is to be understood that term " center ", " longitudinal direction ", " transverse direction ", "upper", "lower",
The orientation or positional relationship of the instructions such as "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is
It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of description the invention and simplifies description, rather than indicate
Or imply that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore cannot understand
For the limitation to the invention.
In addition, term " first ", " second ", " third " etc. are used for description purposes only, it is not understood to indicate or imply
Relative importance or the quantity for implicitly indicating indicated technical characteristic.The feature of " first ", " second " etc. is defined as a result,
It can explicitly or implicitly include one or more of the features.In the description of the invention, unless otherwise indicated,
The meaning of " plurality " is two or more.
Term " installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, be also possible to removable
Connection is unloaded, or is integrally connected；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, it can also be in
Between medium be indirectly connected, can be the connection inside two elements.For the ordinary skill in the art, can pass through
Concrete condition understands concrete meaning of the above-mentioned term in the invention.
Embodiment 1:
It please refers to shown in attached drawing 1-4, a kind of muffler, is further improved as scheme, including cabinet 1, cabinet 1 is opposite
The air inlet and air outlet of two sides, cabinet 1 are hollow structure, and the channel peripheral wall of air inlet to air outlet is equipped with noise reduction layer, also wraps
Several sound gobos 2 being set to inside cabinet 1 are included, are arranged in parallel and are formed noise reduction ventilating duct between several sound gobos 2, are entered the wind
Mouth, noise reduction ventilating duct and air outlet are sequentially connected.
Air-flow before traditional air inlet is gyrate annular airflow, big with the pipe contact area of air inlet,
Friction generates noise, by the way that sound gobo 2 is designed to that the annular airflow before air inlet is converted needle jet stream, needle by parallelly distribute on
Penetrating shape air-flow can be quickly through fan wind inleting tube road, to realize the friction for reducing air-flow and blower tube wall, while air-flow is disappearing
When passing through in sound device, sound gobo 2 absorbs the noise that air-flow and muffler friction generate, and reaches whole sound-deadening and noise-reducing
Effect.In use, the intake stack of air outlet and blower is connected.
In the present embodiment, cabinet 1 is square structure, and sound gobo 2 is square structure.Cabinet is in addition to air inlet and outlet air
The two sides of mouth, other are equipped with noise reduction layer 11, or the noise reduction layer 11 by sound gobo 2 as cabinet 1 on four sides, and cabinet 1 uses
Production square structure the easiest, reduces overall complexity.
The mode that sound gobo is arranged in parallel has three ways, such as lateral, longitudinal and dip-parallel setting, in the present embodiment,
The longitudinal parallelly distribute on of several sound gobos 2 or horizontally-parallel distribution.Sound gobo 2 uses vertical or horizontal distribution, at this time noise reduction
Partition 2 is identical square structure, and part consistency improves, and difficulty of processing reduces, when using longitudinal parallelly distribute on, noise reduction every
Plate 2 can be stably placed in cabinet 1, facilitate the adjusting and fixation of 2 spacing of sound gobo.According to the knot of dip-parallel distribution
Structure, sound gobo 2 then needs to be processed into plurality of specifications, time-consuming, and operation also bothers when being fixed in cabinet 1.
It is further improved as scheme, interval is greater than or equal to the width of sound gobo 2 between sound gobo 2.Noise reduction
Interval too small between partition 2, will lead to that air inlet intake is too small, and blower ventilation effect is bad；It is spaced excessive, erasure effect is not
It is ideal.By rationally controlling the interval of sound gobo 2, guarantees that the volume of noise reduction ventilating duct is greater than the volume of 1 inner cavity of cabinet, meet
The requirement of blower intake, and guarantee erasure effect.
By being designed as rectangular 1 structure of cabinet, length rectangular noise reduction corresponding with width is placed in parallel into cabinet 1
Partition 2, overall structure is easy, easy to make, and practicability is high.
Embodiment 2:
It please refers to shown in attached drawing 1-4, the present embodiment and the difference of embodiment 1 are to set engineering project for sound gobo 2
In most commonly seen angle bar and wire netting package silencing cotton 22 structure so that the production deformation of sound gobo 2, can quickly meet work
Journey item purpose needs.And by adding blower connecting flange 4 and pedestal shelf 3, so that muffler becomes detachable device, with wind
Structure after machine connection is also more stable.
In the present embodiment, sound gobo 2 includes outline border 21, silencing cotton 22 and support member 23, and silencing cotton 22 is placed in outer
Between the 21 of frame, support member 23 is placed in 22 outside of silencing cotton and connect with outline border 21.Using outline border and support member by silencing cotton
Fixed mode, simple processing.
Wherein the material of outline border 21 is angle bar, and support member 23 is wire netting.The components of sound gobo 2 are using in building site
Most commonly seen angle bar and wire netting, raw material obtain easy.
It is further improved as scheme, further includes blower connecting flange 4, blower connecting flange 4 is connect with air outlet.Wind
The blower that 4 shape of machine connecting flange connects as needed carries out mating production can needed muffler using flange arrangement
When be mounted on blower, disassembly when not needing.
It is further improved as scheme, further includes pedestal shelf 3, pedestal shelf 3 is connect with 1 bottom of cabinet.The bottom of set on
Mounting 3 is for making the matched of muffler Yu fan wind inleting tube road.
Tool of the series of detailed descriptions listed above only for the feasible embodiment of the utility model
Body explanation, they are all without departing from made by the utility model skill spirit not to limit the protection scope of the utility model
Equivalent implementations or change should be included within the scope of protection of this utility model.
It is obvious to a person skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and
And without departing substantially from the spirit or essential attributes of the utility model, it can realize that this is practical new in other specific forms
Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this is practical new
The range of type is indicated by the appended claims rather than the foregoing description, it is intended that containing for the equivalent requirements of the claims will be fallen in
All changes in justice and range are embraced therein.It should not treat any reference in the claims as limiting
Related claim.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (8)
1. a kind of muffler is used for tunnel ventilation blower, which is characterized in that including cabinet (1), cabinet (1) opposite sides
Air inlet and air outlet, the cabinet (1) is hollow structure, and the channel peripheral wall of the air inlet to the air outlet, which is equipped with, to disappear
Sound-absorbing layer (11) further includes several sound gobos (2) internal set on the cabinet (1), puts down between several sound gobos (2)
Row is arranged and forms noise reduction ventilating duct, and the air inlet, noise reduction ventilating duct and air outlet are sequentially connected.
2. a kind of muffler according to claim 1, which is characterized in that the cabinet (1) is square structure, the noise reduction
Partition (2) is square structure.
3. a kind of muffler according to claim 2, which is characterized in that longitudinal parallel point of several sound gobos (2)
Cloth or horizontally-parallel distribution.
4. a kind of muffler according to claim 3, which is characterized in that between the sound gobo (2) interval be greater than or
Equal to the width of the sound gobo (2).
5. a kind of muffler according to claim 4, which is characterized in that the sound gobo (2) includes outline border (21), disappears
Sound cotton (22) and support member (23), the silencing cotton (22) are placed between the outline border (21), and the support member (23) is set
It connect in the silencing cotton (22) outside and with the outline border (21).
6. a kind of muffler according to claim 5, which is characterized in that the material of the outline border (21) is angle bar, described
Support member (23) is wire netting.
7. a kind of muffler described in one of -6 according to claim 1, which is characterized in that further include blower connecting flange (4), institute
Blower connecting flange (4) is stated to connect with the air outlet.
8. a kind of muffler according to claim 7, which is characterized in that further include pedestal shelf (3), the pedestal shelf
(3) it is connect with the cabinet (1) bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821987946.1U CN209430496U (en) | 2018-11-29 | 2018-11-29 | A kind of muffler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821987946.1U CN209430496U (en) | 2018-11-29 | 2018-11-29 | A kind of muffler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209430496U true CN209430496U (en) | 2019-09-24 |
Family
ID=67968748
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821987946.1U Active CN209430496U (en) | 2018-11-29 | 2018-11-29 | A kind of muffler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209430496U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114837998A (en) * | 2022-05-23 | 2022-08-02 | 山东省章丘鼓风机股份有限公司 | Air inlet box of double-support ventilator |
-
2018
- 2018-11-29 CN CN201821987946.1U patent/CN209430496U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114837998A (en) * | 2022-05-23 | 2022-08-02 | 山东省章丘鼓风机股份有限公司 | Air inlet box of double-support ventilator |
| CN114837998B (en) * | 2022-05-23 | 2023-12-08 | 山东省章丘鼓风机股份有限公司 | Double-support ventilator air inlet box |
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