CN217898228U - Impedance silencer for reducing fan noise - Google Patents
Impedance silencer for reducing fan noise Download PDFInfo
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- CN217898228U CN217898228U CN202221822021.8U CN202221822021U CN217898228U CN 217898228 U CN217898228 U CN 217898228U CN 202221822021 U CN202221822021 U CN 202221822021U CN 217898228 U CN217898228 U CN 217898228U
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Abstract
The utility model discloses an impedance silencer of fan noise subducting usefulness, which comprises a housin, the multilateral inner wall of casing is provided with the amortization board cover, is provided with a plurality of sound absorbing sheets between the top inner wall of amortization board cover and the bottom inner wall, the top outer wall and the bottom outer wall of casing are pegged graft respectively and are had a plurality of spliced poles, the same mounting panel of one end fixedly connected with of per two spliced poles, wherein the upper surface of two mounting panels and the bottom difference fixedly connected with shock pad of two other mounting panels. The utility model discloses when using the impedance silencer to subdue fan noise to the impact force that its production had the shock pad and sealed the pad and do the buffering when avoiding the wind-force of fan to blow to the impedance silencer, with this prevent that the impedance silencer from producing rather than the air pipe of being connected and tremble, can effectively avoid it to hit each other and hit and beat and produce the secondary noise, simultaneously, can also ensure the interior noise elimination of ventilating of casing and handle, promoted the noise cancelling effect of impedance silencer.
Description
Technical Field
The utility model relates to a fan noise elimination technical field especially relates to an impedance silencer of fan noise subducting usefulness.
Background
In the industrial production and daily operation process, ventilation pipelines are often involved, air flow in the ventilation pipelines and the ventilation pipelines can generate serious vibration noise, the impedance silencer is a main device for reducing noise of the ventilation pipelines and is an acoustic device for preventing sound from spreading and allowing air flow to pass, when the fan is used, the silencer is required to be installed on an air inlet and an air outlet which are opened by the fan, and can also be connected in series on the air inlet and the air outlet pipelines to allow vertical or horizontal silencer assembly, so that the impedance silencer for reducing the noise of the fan is required.
At present, most of the existing impedance mufflers for reducing the noise of the fan have the following defects: when using the impedance silencer to subdue fan noise, because the wind-force of fan blows to the impedance silencer when having great impact force, leads to the impedance silencer to vibrate rather than the air pipe of being connected, hits each other and produces the secondary noise, influences the noise cancelling effect of impedance silencer, to sum up, the impedance silencer of current fan noise subduction usefulness still can not agree with actual need well mostly.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the shortcoming that exists among the prior art, and the impedance silencer of usefulness is subducted to a fan noise that proposes.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides an impedance silencer of fan noise subduction usefulness, includes the casing, the multilateral inner wall of casing is provided with the noise damping plate cover, is provided with a plurality of sound absorption pieces between the top inner wall of noise damping plate cover and the bottom inner wall, the top outer wall and the bottom outer wall of casing are pegged graft respectively and are had a plurality of spliced poles, the same mounting panel of one end fixedly connected with of per two spliced poles, and wherein the upper surface of two mounting panels and the bottom of two other mounting panels are fixedly connected with shock pad respectively, the outer wall both sides fixedly connected with fixed plate of casing, one side fixedly connected with of fixed plate are sealed to be filled up.
Furthermore, the outer wall of the multiple sides of the shell is sleeved with a rubber sleeve.
Furthermore, a plurality of through holes are formed in two sides of the outer wall of the rubber sleeve.
Furthermore, the inner walls of the multiple sides of the fixing plate are provided with rubber frames.
Furthermore, fixed frames are arranged on the inner walls of the multiple sides of the rubber frame.
Furthermore, an inner bucket-shaped cover and an outer bucket-shaped cover are fixedly connected to two sides of the fixing frame respectively.
Furthermore, one side of the outer bucket-shaped cover is fixedly connected with a sealing frame.
Furthermore, a plurality of positioning columns are respectively inserted into one side of the fixing plate.
The beneficial effects of the utility model are that:
1. the utility model discloses, through the setting of shock pad and sealed pad, when using the impedance silencer to subdue fan noise, the impact force that its production has the shock pad and sealed pad to cushion when blowing to the impedance silencer with the wind-force of avoiding the fan, prevent with this that the impedance silencer from producing rather than the air pipe of being connected from vibrating, can effectively avoid the impedance silencer to hit each other with the air pipe of being connected and hit and beat and produce the secondary noise, and simultaneously, by the setting of amortization plate cover and sound absorption piece, with the noise elimination of guarantee casing internal draft handle, the noise cancelling effect of impedance silencer has been promoted.
2. The utility model discloses, through the setting of interior fill shape cover and outer fill shape cover, can do the direction to the produced wind of fan to reduce air pipe and receive the impact force of wind, with this, in order to play good noise elimination effect.
3. The utility model discloses, through the setting of a plurality of reference columns, can play the effect that the location was pegged graft when installing the impedance silencer, make things convenient for impedance silencer and fan air pipe's installation from this.
Drawings
Fig. 1 is a schematic perspective view of an impedance muffler for reducing fan noise according to the present invention;
fig. 2 is a schematic side sectional structural view of an impedance muffler for reducing fan noise according to the present invention;
fig. 3 is a schematic view of a local explosion separation structure of an impedance muffler for reducing fan noise according to the present invention;
fig. 4 is a schematic view of a section of an impedance muffler for reducing fan noise according to the present invention.
In the figure: 1. a housing; 2. a silencer plate cover; 3. a sound absorbing sheet; 4. connecting columns; 5. mounting a plate; 6. a shock pad; 7. a fixing plate; 8. a gasket; 9. a rubber sleeve; 10. a through hole; 11. a rubber frame; 12. a fixing frame; 13. an inner funnel-shaped cover; 14. an outer funnel-shaped cover; 15. a sealing frame; 16. and a positioning column.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the 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.
Referring to fig. 1-4, an impedance silencer for reducing fan noise includes a housing 1, a silencer cover 2 is disposed on a multi-side inner wall of the housing 1, a plurality of sound absorbing sheets 3 are disposed between a top inner wall and a bottom inner wall of the silencer cover 2, the silencer cover 2 and the sound absorbing sheets 3 are designed to ensure silencing of ventilation in the housing 1, so as to improve silencing effect of the impedance silencer, a plurality of connecting posts 4 are respectively inserted into a top outer wall and a bottom outer wall of the housing 1, one end of each of the two connecting posts 4 is fixed with a same mounting plate 5 through bolts, wherein shock absorbing pads 6 are respectively bonded to upper surfaces of the two mounting plates 5 and bottoms of the other two mounting plates 5, fixing plates 7 are fixed to two sides of an outer wall of the housing 1 through bolts, a sealing pad 8 is bonded to one side of the fixing plate 7, and the damping pad 6 and the sealing pad 8 are designed, when the impedance silencer is used to reduce fan noise, impact force generated when wind force of the fan blows to the impedance silencer and the impedance silencer are connected to the ventilation duct, so as to generate secondary noise.
The utility model discloses in, the multi-side outer wall cover of casing 1 is equipped with rubber sleeve 9, a plurality of through-holes 10 have been seted up to rubber sleeve 9's outer wall both sides, the multi-side inner wall of fixed plate 7 is provided with rubber frame 11, the multi-side inner wall of rubber frame 11 is provided with fixed frame 12, the both sides of fixed frame 12 are respectively through bolt fastening have interior fill shape cover 13 and outer fill shape cover 14, through the design of interior fill shape cover 13 and outer fill shape cover 14, can do the direction to the produced wind of fan, in order to reduce air pipe and receive the impact force of wind, with this, in order to play good noise cancelling effect.
Particularly, a sealing frame 15 is fixed on one side of the outer bucket-shaped cover 14 through bolts, a plurality of positioning columns 16 are respectively inserted into one side of the fixing plate 7, and the positioning columns 16 are designed to play a role of positioning and inserting when the impedance silencer is installed, so that the impedance silencer and a fan ventilating duct are conveniently installed.
The working principle of the embodiment is as follows: when the air silencer is used, firstly, the impedance silencer is connected with a fan ventilating duct through the fixing plate 7 and is connected with a house installation structure through the installation plate 5, at the moment, the sealing frame 15 is attached to the connected ventilating duct, the positioning column 16 is connected with the connected ventilating duct in an inserting mode, namely, the impedance silencer is installed, then, air generated in the operation of the fan enters the shell 1 through the ventilating duct under the guiding of the inner hopper-shaped cover 13 and the outer hopper-shaped cover 14, and the silencing plate cover 2 and the sound absorption sheet 3 are used for silencing the entering air.
The above, only be the embodiment of the preferred of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, which are designed to be replaced or changed equally, all should be covered within the protection scope of the present invention.
Claims (8)
1. The utility model provides an impedance silencer of fan noise abatement usefulness, includes casing (1), its characterized in that, the multilateral inner wall of casing (1) is provided with noise damper cover (2), is provided with a plurality of sound absorbing sheet (3) between the top inner wall of noise damper cover (2) and the bottom inner wall, the top outer wall and the bottom outer wall of casing (1) are pegged graft respectively and are had a plurality of spliced poles (4), and the same mounting panel (5) of the one end fixedly connected with of per two spliced poles (4), wherein the upper surface of two mounting panels (5) and the bottom of two other mounting panels (5) are fixedly connected with shock pad (6) respectively, the outer wall both sides fixedly connected with fixed plate (7) of casing (1), one side fixedly connected with of fixed plate (7) is sealed fills up (8).
2. The impedance muffler for reducing fan noise according to claim 1, wherein the outer walls of the multiple sides of the housing (1) are sleeved with rubber sleeves (9).
3. The impedance muffler for reducing fan noise according to claim 2, wherein a plurality of through holes (10) are formed on two sides of the outer wall of the rubber sleeve (9).
4. The impedance muffler for noise reduction of a blower according to claim 1, wherein the fixed plate (7) is provided with a rubber frame (11) on the inner wall of the multiple sides.
5. The resistance muffler for fan noise reduction according to claim 4, wherein the rubber frame (11) is provided with fixing frames (12) at the inner walls of the sides.
6. The impedance muffler for reducing fan noise according to claim 5, wherein the inner hopper-shaped cover (13) and the outer hopper-shaped cover (14) are fixedly connected to both sides of the fixing frame (12), respectively.
7. The impedance muffler for reducing fan noise according to claim 6, wherein a sealing frame (15) is fixedly connected to one side of the outer bucket-shaped cover (14).
8. The impedance muffler for reducing fan noise according to claim 1, wherein a plurality of positioning posts (16) are respectively inserted into one side of the fixing plate (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221822021.8U CN217898228U (en) | 2022-07-14 | 2022-07-14 | Impedance silencer for reducing fan noise |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221822021.8U CN217898228U (en) | 2022-07-14 | 2022-07-14 | Impedance silencer for reducing fan noise |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217898228U true CN217898228U (en) | 2022-11-25 |
Family
ID=84134321
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221822021.8U Active CN217898228U (en) | 2022-07-14 | 2022-07-14 | Impedance silencer for reducing fan noise |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217898228U (en) |
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2022
- 2022-07-14 CN CN202221822021.8U patent/CN217898228U/en active Active
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