CN216922630U - Noise reduction mechanism for centrifugal fan - Google Patents
Noise reduction mechanism for centrifugal fan Download PDFInfo
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- CN216922630U CN216922630U CN202123318594.5U CN202123318594U CN216922630U CN 216922630 U CN216922630 U CN 216922630U CN 202123318594 U CN202123318594 U CN 202123318594U CN 216922630 U CN216922630 U CN 216922630U
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- centrifugal fan
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Abstract
The utility model relates to the technical field of centrifugal fans, in particular to a noise reduction mechanism for a centrifugal fan. It mainly subdues the noise through the shock attenuation to current fan, and the effect is poor, can not be effectual to the problem of centrifugal fan noise reduction treatment, proposes following technical scheme: the base is included, the centrifugal fan body is installed at the top of base, conflict mechanism is installed to the below of centrifugal fan body, conflict mechanism includes the loop bar, slidable mounting has the slide bar in the loop bar, the top of slide bar is connected with the conflict board, the output of centrifugal fan body is equipped with the air-out chamber. The utility model has novel and compact structure, is butted, fastened and supported on the bottom of the centrifugal fan body, and ensures that the centrifugal fan body is more stably installed, thereby reducing the vibration amplitude of the centrifugal fan body, avoiding the noise generated by instability, absorbing the sound of the output end of the fan and outputting the sound, effectively absorbing the noise, and reducing the noise of the fan, and is mainly applied to the noise reduction of the centrifugal fan.
Description
Technical Field
The utility model relates to the technical field of centrifugal fans, in particular to a noise reduction mechanism for a centrifugal fan.
Background
The centrifugal fan is a machine which increases the gas pressure and discharges gas by means of input mechanical energy, and is a driven fluid machine; centrifugal fans are widely used in factories, mines, tunnels, cooling towers, vehicles, ships and buildings for ventilation, dust removal and cooling; ventilating and air inducing of boilers and industrial kilns; cooling and ventilation in air conditioning equipment and household appliances; drying and selecting grains; the wind source of the wind tunnel and the air cushion ship are inflated and propelled, and the centrifugal fan can generate noise due to high-speed air flow in the working process to generate larger sound; "type centrifugal fan falls to make an uproar" is proposed in patent "CN 2106372574", drives this centrifugal fan and shakes during fan work in this scheme, and this centrifugal fan shakes and promotes the support column lapse and promote the spring along the shrink of location section of thick bamboo, and then carries out the shock attenuation to this centrifugal fan, improves this centrifugal fan's life. But the vibration of the centrifugal fan is damped on the mounting base, so that the vibration generated by the centrifugal fan cannot be reduced, the noise is slightly solved, and the centrifugal fan can generate larger noise while conveying and supplying air; in view of this, we propose a noise reduction mechanism for a centrifugal fan.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a noise reduction mechanism for a centrifugal fan, aiming at the problems that the existing device in the background art reduces the vibration of the fan through the installation of a damping mechanism, so that the noise is reduced, the effect is too small, and the noise reduction treatment of the centrifugal fan cannot be effectively carried out.
The technical scheme of the utility model is as follows: the utility model provides a centrifugal fan is with mechanism of making an uproar that falls, includes the base, the centrifugal fan body is installed at the top of base, conflict mechanism is installed to the below of centrifugal fan body, conflict mechanism includes the loop bar, slidable mounting has the slide bar in the loop bar, the top of slide bar is connected with the touch panel, the output of centrifugal fan body is equipped with the air-out chamber, the abatvoix is installed to the inner wall in air-out chamber, the top of abatvoix is connected with the mounting panel, the installation piece is installed to the both sides of mounting panel.
Preferably, the inner wall in the air outlet cavity is provided with a mounting groove, the mounting groove is mounted in a matching manner with the mounting block, and the top of the mounting block is connected with a pull rod.
Preferably, a plurality of ventilation holes are formed in the mounting plate, the sound-absorbing plates are multiple, and the mounting plate is mounted on the inner wall of the air outlet cavity in an adaptive mode.
Preferably, the top of the sliding rod is connected with the outer wall of the contact plate through a connecting block, and the contact plate is a circular arc-shaped plate.
Preferably, a plurality of positioning grooves are formed in the sliding rod in the height direction, positioning bolts are rotatably mounted on the loop bar, and the positioning bolts are mounted in a matched mode with the positioning grooves.
Preferably, the inner wall of the touch plate is provided with a buffer pad, and the front surface of the centrifugal fan body is provided with an air inlet cavity.
Compared with the prior art, the utility model has the following beneficial technical effects:
1. according to the utility model, the mounting plate and the sound-absorbing plate are arranged at the air outlet of the centrifugal fan body, so that the fan can absorb part of noise through the sound-absorbing plate while supplying a large amount of air, the effect of mute air supply is achieved, the mounting plate is fixedly mounted in the air outlet cavity through the mounting groove and the mounting block, and the pull rod is arranged to facilitate the height of the mounting plate and the mounting block to be lifted, so that the mounting plate and the mounting block are separated from the mounting groove;
2. the bottom of the centrifugal fan body is fastened, abutted and supported through the arrangement of the abutting plate and the buffer cushion, so that the vibration space of the centrifugal fan body is reduced, the position of the centrifugal fan body is stable, the vibration is reduced, the generated vibration is absorbed and buffered through the buffer cushion, the use height of the abutting plate is adjusted through the arrangement of the positioning groove and the positioning bolt, the centrifugal fan is suitable for being used by centrifugal fan bodies of different models, and the flexibility is high;
3. in conclusion, the centrifugal fan is novel and compact in structure, and the bottom of the centrifugal fan body is abutted and fastened to support, so that the centrifugal fan body is more stably installed, the vibration amplitude of the centrifugal fan body is reduced, noise generated by instability is avoided, the output end of the fan is output after sound absorption, the noise is effectively absorbed, and the noise reduction treatment is performed on the fan.
Drawings
FIG. 1 is a front view of a noise reduction mechanism for a centrifugal fan;
fig. 2 is a schematic structural view of the interference mechanism in fig. 1.
Reference numerals: 1. a base; 2. a centrifugal fan body; 3. an air inlet cavity; 4. an air outlet cavity; 5. mounting grooves; 6. mounting a plate; 7. a sound-absorbing panel; 8. mounting blocks; 9. a collision mechanism; 91. a loop bar; 92. a slide bar; 93. positioning a groove; 94. positioning bolts; 95. a touch plate; 96. a cushion pad; 10. a pull rod.
Detailed Description
The technical solution of the present invention is further explained with reference to the accompanying drawings and specific embodiments.
Example one
As shown in fig. 1-2, the noise reduction mechanism for a centrifugal fan provided by the utility model comprises a base 1, a centrifugal fan body 2 is installed on the top of the base 1, an abutting mechanism 9 is installed below the centrifugal fan body 2, the abutting mechanism 9 comprises a loop bar 91, a slide bar 92 is slidably installed in the loop bar 91, a contact plate 95 is connected on the top of the slide bar 92, an air outlet cavity 4 is arranged at the output end of the centrifugal fan body 2, an installation groove 5 is formed in the inner wall of the air outlet cavity 4, a sound absorption plate 7 is installed in the air outlet cavity 4, an installation plate 6 is connected on the top of the sound absorption plate 7, a plurality of vent holes are formed in the installation plate 6, the sound absorption plates 7 are installed in a manner of being matched with the inner wall of the air outlet cavity 4, installation blocks 8 are installed on two sides of the installation plate 6, the installation grooves 5 are installed in a manner of being matched with the installation blocks 8, a pull rod 10 is connected on the top of the installation blocks 8, and the height of the pull rod 10 is greater than the depth of the installation groove 5, the tie rods 10 are used to disengage the mounting blocks 8 from the mounting slots 5 by pulling the tie rods 10 when the sound-absorbing panel 7 is replaced, and the plurality of vent holes in the mounting plate 6 are used to deliver wind.
In this embodiment, install abatvoix 7 and mounting panel 6's bottom to correspond the installation with the installation piece 8 and the mounting groove 5 of mounting panel 6 both sides, make abatvoix 7 be located the inside in air outlet chamber 4, through abatvoix 7 amortization when centrifugal fan body 2 passes through air outlet chamber 4 air-out, the output of noise abatement, when changing abatvoix 7, with pull rod 10 pulling, make installation piece 8 promote to the outside of mounting groove 5 can.
Example two
As shown in fig. 1-2, compared with the first embodiment, the noise reduction mechanism for a centrifugal fan provided by the present invention further includes a base 1, a centrifugal fan body 2 is installed on the top of the base 1, an abutting mechanism 9 is installed below the centrifugal fan body 2, the abutting mechanism 9 includes a loop bar 91, the loop bar 91 is fixedly connected to the base 1 through a mounting seat, a sliding bar 92 is installed in the loop bar 91 in a sliding manner, the top of the sliding bar 92 is connected to the outer wall of the abutting plate 95 through a connecting block, the abutting plate 95 is a circular arc-shaped plate, a plurality of positioning slots 93 are formed in the sliding bar 92 along the height direction of the sliding bar 92, a positioning bolt 94 is rotatably installed on the loop bar 91, the positioning bolt 94 is fittingly installed with the positioning slots 93, the positioning bolt 94 is used for fixedly installing the sliding bar 92 after the height of the sliding bar 92 is adjusted, the top of the sliding bar 92 is connected to the abutting plate 95, a cushion 96 is installed on the inner wall of the abutting plate 95, the cushion 96 is used for absorbing vibration, the front of centrifugal fan body 2 is provided with air inlet chamber 3, and the output of centrifugal fan body 2 is equipped with air outlet chamber 4, and abatvoix 7 is installed to air outlet chamber 4's inner wall, and the top of abatvoix 7 is connected with mounting panel 6, and installation piece 8 is installed to the both sides of mounting panel 6.
In this embodiment, before centrifugal fan body 2 uses, rotate the gim peg 94 from a constant head tank 93 and break away from, and promote slide bar 92 highly upwards, make touch panel 95 and cushion 96 with slide bar 92's bottom sprag, cushion 96 supports back with gim peg 94 with centrifugal fan body 2's bottom, make the gim peg 94 correspond the installation with the air inlet chamber 3 on the slide bar 92, accomplish the fixed of slide bar 92 height, under touch panel 95 and cushion 96's the setting, centrifugal fan body 2 is only contradicted at the during operation, make centrifugal fan body 2's vibration range reduce, simultaneously through cushion 96 to vibration buffering, the absorption slows down the vibration, make centrifugal fan body 2's use more stable, prolong centrifugal fan body 2's life.
The above embodiments are merely some preferred embodiments of the present invention, and those skilled in the art can make various alternative modifications and combinations of the above embodiments based on the technical solution of the present invention and the related teaching of the above embodiments.
Claims (6)
1. The utility model provides a centrifugal fan is with mechanism of making an uproar falls, includes base (1), centrifugal fan body (2), its characterized in that are installed at the top of base (1): conflict mechanism (9) are installed to the below of centrifugal fan body (2), conflict mechanism (9) include loop bar (91), slidable mounting has slide bar (92) in loop bar (91), the top of slide bar (92) is connected with and supports touch panel (95), the output of centrifugal fan body (2) is equipped with air-out chamber (4), abatvoix (7) are installed to the inner wall in air-out chamber (4), the top of abatvoix (7) is connected with mounting panel (6), installation piece (8) are installed to the both sides of mounting panel (6).
2. The noise reduction mechanism for the centrifugal fan according to claim 1, wherein an installation groove (5) is formed in an inner wall of the air outlet cavity (4), the installation groove (5) and an installation block (8) are installed in a matched mode, and a pull rod (10) is connected to the top of the installation block (8).
3. The noise reduction mechanism for the centrifugal fan according to claim 1, wherein a plurality of vent holes are formed in the mounting plate (6), a plurality of sound absorption plates (7) are provided, and the mounting plate (6) is mounted on the inner wall of the air outlet cavity (4) in an adaptive manner.
4. The noise reduction mechanism for the centrifugal fan according to claim 1, wherein the top of the sliding rod (92) is connected to the outer wall of the contact plate (95) through a connecting block, and the contact plate (95) is a circular arc plate.
5. The noise reduction mechanism for the centrifugal fan according to claim 1, wherein the sliding rod (92) is provided with a plurality of positioning grooves (93) along a height direction thereof, the loop bar (91) is rotatably provided with a positioning bolt (94), and the positioning bolt (94) is fittingly installed with the positioning grooves (93).
6. The noise reduction mechanism for the centrifugal fan according to claim 1, wherein a buffer pad (96) is mounted on an inner wall of the contact plate (95), and an air inlet chamber (3) is arranged on a front surface of the centrifugal fan body (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123318594.5U CN216922630U (en) | 2021-12-27 | 2021-12-27 | Noise reduction mechanism for centrifugal fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123318594.5U CN216922630U (en) | 2021-12-27 | 2021-12-27 | Noise reduction mechanism for centrifugal fan |
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| Publication Number | Publication Date |
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| CN216922630U true CN216922630U (en) | 2022-07-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202123318594.5U Active CN216922630U (en) | 2021-12-27 | 2021-12-27 | Noise reduction mechanism for centrifugal fan |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116357622A (en) * | 2023-02-14 | 2023-06-30 | 广东合胜热能科技有限公司 | Noise reduction system of fan of mute water heater |
-
2021
- 2021-12-27 CN CN202123318594.5U patent/CN216922630U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116357622A (en) * | 2023-02-14 | 2023-06-30 | 广东合胜热能科技有限公司 | Noise reduction system of fan of mute water heater |
| CN116357622B (en) * | 2023-02-14 | 2023-11-03 | 广东合胜热能科技有限公司 | Noise reduction system of fan of mute water heater |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: Workshop A1, Guangdong Luosen Ventilation Equipment Manufacturing Co., Ltd., No. 6 Desheng Road, Industrial Park, Chengdong Neighborhood Committee, Decheng Street, Deqing County, Zhaoqing City, Guangdong Province, 526000 Patentee after: Guangdong East Ventilation Fan Co.,Ltd. Address before: 523000 Room 202, No. 9, Xinhe Zhifu Road, Wanjiang street, Dongguan City, Guangdong Province Patentee before: DONGGUAN GUOTONG VENTILATION EQUIPMENT CO.,LTD. |
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| CP03 | Change of name, title or address |