CN218991986U

CN218991986U - Noise reduction device of centrifugal fan

Info

Publication number: CN218991986U
Application number: CN202223270471.3U
Authority: CN
Inventors: 蒋海锋; 段志军; 朱兰岚
Original assignee: Fengfengjia Fan Shanghai Co ltd
Current assignee: Fengfengjia Fan Shanghai Co ltd
Priority date: 2022-12-07
Filing date: 2022-12-07
Publication date: 2023-05-09
Anticipated expiration: 2032-12-07

Abstract

The utility model discloses a noise reduction device of a centrifugal fan, and relates to the technical field of noise reduction of centrifugal fans. The utility model comprises a base, a placing groove and a fan body, wherein the placing groove is arranged on one side of the upper surface of the base, one end of the fan body is embedded in the placing groove, the fan body is movably connected with the base, the upper surface of the fan body is provided with an air outlet, the peripheral side surface of the air outlet is embedded with a second sound-proof housing, the inner surface of the second sound-proof housing is embedded with a sound-absorbing plate, the inner surface of the second sound-proof housing is in sliding fit with the peripheral side surface of the air outlet, a plurality of dampers are welded on the other side of the upper surface of the base, and a supporting plate is welded on the upper surface of each damper. According to the utility model, through the first sound-proof cover, the second sound-proof cover and the sound-absorbing plate structure, mechanical vibration generated in the operation process of the motor and bombing generated by high-speed air flow at the air outlet are absorbed, noise pollution is avoided, and the working environment of workers is optimized.

Description

Noise reduction device of centrifugal fan

Technical Field

The utility model belongs to the technical field of noise reduction of centrifugal fans, and particularly relates to a noise reduction device of a centrifugal fan.

Background

In the prior art, the vibration of the centrifugal fan is further enhanced due to the vibration of the driving device in the use process, and possibly due to mechanical vibration generated in the operation process, impact on a pipeline on the inner wall of the fan when the high-speed airflow changes the moving direction, and the like, so that serious noise pollution is caused.

Disclosure of Invention

The utility model aims to provide a noise reduction device for a centrifugal fan, which solves the problem of noise pollution in the prior art.

In order to solve the technical problems, the utility model is realized by the following technical scheme:

the utility model relates to a noise reduction device of a centrifugal fan, which comprises a base, a placing groove and a fan body, wherein the placing groove is arranged on one side of the upper surface of the base, one end of the fan body is embedded in the placing groove, the fan body is movably connected with the base, the upper surface of the fan body is provided with an air outlet, the peripheral side surface of the air outlet is embedded with a second sound-proof housing, the inner surface of the second sound-proof housing is embedded with a sound-absorbing plate, the sound-absorbing plate absorbs the bombing generated by high-speed air flow of the air outlet, the generation of noise pollution is avoided, the working environment of workers is optimized, the inner surface of the second sound-proof housing is in sliding fit with the peripheral side surface of the air outlet, a plurality of dampers are welded on the other side of the upper surface of the base, the mechanical vibration generated in the operation process of a motor is buffered, and a supporting plate is welded on the upper surface of the dampers.

Further, one end of the supporting plate is welded with one surface of the fan body, a motor is welded on the upper surface of the supporting plate, the motor and the fan body are matched with each other, and sliding grooves are formed in two sides of the upper surface of the supporting plate.

Further, two sliding blocks are embedded in the sliding grooves, the sliding blocks are in sliding fit with the sliding grooves, first sound-proof covers are welded on the upper surfaces of the sliding blocks, the first sound-proof covers are matched with the motor, mechanical vibration generated in the operation process of the motor is absorbed, noise pollution is avoided, and the working environment of workers is optimized.

Further, the installation rods are embedded in the two opposite surfaces of the second sound-proof housing, one end of each installation rod penetrates through the two opposite surfaces of the second sound-proof housing respectively, one end of each installation rod is matched with the second sound-proof housing in a clamping manner, and the other ends of the installation rods are welded with pull plates.

Further, two connecting springs are welded between one surface of the pulling plate and the opposite surfaces of the second sound-proof housing respectively, the two connecting springs are wound on the peripheral side surfaces of the two mounting rods respectively, the second sound-proof housing is convenient to mount and dismount, and convenience in use of the device is improved.

Further, support columns are welded on the periphery of the lower surface of the base, support sleeves are embedded at one ends of the support columns, and the periphery of one end of each support column is in sliding fit with the inner surface of each support sleeve.

Further, a supporting spring is welded on the inner bottom surface of the supporting sleeve, and one end of the supporting spring is welded with the lower surface of the supporting column.

The utility model has the following beneficial effects:

1. according to the utility model, through the first sound-proof cover, the second sound-proof cover and the sound-absorbing plate structure, mechanical vibration generated in the operation process of the motor and bombing generated by high-speed air flow at the air outlet are absorbed, noise pollution is avoided, and the working environment of workers is optimized.

2. According to the utility model, through the damper structure, mechanical vibration generated in the running process of the motor is buffered, and meanwhile, through the sliding groove and the mounting rod structure, the first sound-proof cover and the second sound-proof cover are convenient to mount and dismount, and the convenience of the device in use is improved.

Of course, it is not necessary for any one product to practice the utility model to achieve all of the advantages set forth above at the same time.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and that other 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 a noise reducer of a centrifugal fan;

FIG. 2 is a schematic diagram of a rear view of a noise reduction device for a centrifugal fan according to the present utility model;

FIG. 3 is a schematic diagram of a right-side view of a noise reduction device for a centrifugal fan according to the present utility model;

FIG. 4 is a schematic top view of a noise reducer for a centrifugal fan according to the present utility model;

fig. 5 is a schematic diagram of a front view structure of a noise reduction device of a centrifugal fan.

In the drawings, the list of components represented by the various numbers is as follows:

1. a base; 2. a placement groove; 3. a fan body; 4. a motor; 5. a damper; 6. a support plate; 7. a chute; 8. a slide block; 9. a first soundproof cover; 10. an air outlet; 11. a second soundproof cover; 12. a sound absorbing panel; 13. a mounting rod; 14. a connecting spring; 15. pulling a plate; 16. a support column; 17. supporting the sleeve.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be understood that the terms "upper," "middle," "outer," "inner," and the like indicate an orientation or a positional relationship, and are merely for convenience of describing the present utility model and simplifying the description, but do not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Embodiment one:

referring to fig. 1-5, the utility model discloses a noise reduction device for a centrifugal fan, which comprises a base 1, a placing groove 2 and a fan body 3, wherein the placing groove 2 is arranged on one side of the upper surface of the base 1, one end of the fan body 3 is embedded in the placing groove 2, the fan body 3 is movably connected with the base 1, an air outlet 10 is arranged on the upper surface of the fan body 3, a second sound-proof cover 11 is embedded on the side surface of the periphery of the air outlet 10, an acoustic panel 12 is embedded on the inner surface of the second sound-proof cover 11, the bombing generated by high-speed air flow of the air outlet 10 is absorbed, the noise pollution is avoided, the working environment of workers is optimized, the inner surface of the second sound-proof cover 11 is in sliding fit with the side surface of the periphery of the air outlet 10, a plurality of dampers 5 are welded on the other side of the upper surface of the base 1, the mechanical vibration generated in the operation process of a motor 4 is buffered, and a supporting plate 6 is welded on the upper surface of the dampers 5.

The support column 16 is welded on the periphery of the lower surface of the base 1, the support sleeve 17 is embedded at one end of the support column 16, the periphery of one end of the support column 16 is in sliding fit with the inner surface of the support sleeve 17, the support spring is welded on the bottom surface inside the support sleeve 17, and one end of the support spring is welded with the lower surface of the support column 16.

One end of the supporting plate 6 is welded with one surface of the fan body 3, the upper surface of the supporting plate 6 is welded with the motor 4, the motor 4 is matched with the fan body 3, and sliding grooves 7 are formed in two sides of the upper surface of the supporting plate 6.

The inside slider 8 that has all been inlayed of two spouts 7, sliding fit between slider 8 and the spout 7, and two slider 8 upper surface welding have first sound-proof housing 9, mutually support between first sound-proof housing 9 and the motor 4, absorb the mechanical shock that the motor 4 produced in the operation in-process, avoid noise pollution's production, optimize workman's operational environment.

The installation pole 13 has all been inlayed to two opposite surfaces of second sound-proof housing 11, and two installation pole 13 one end runs through two opposite surfaces of second sound-proof housing 11 respectively, and joint cooperation between two installation pole 13 one end and the second sound-proof housing 11, two installation pole 13 other ends all weld and have arm-tie 15.

And a connecting spring 14 is welded between one surface of each pulling plate 15 and the opposite surface of the second sound-proof housing 11, and the two connecting springs 14 are respectively wound on the peripheral side surfaces of the two mounting rods 13, so that the second sound-proof housing 11 is convenient to mount and dismount, and the convenience of the device in use is improved.

Embodiment two:

referring to fig. 1-5, the utility model is a noise reduction device for a centrifugal fan, preferably, the model of a motor 4 is YEs 2-100, and the application method is as follows: through the structures of the first sound-proof housing 9, the second sound-proof housing 11 and the sound absorbing plate 12, mechanical vibration generated in the operation process of the motor 4 and bombing generated by high-speed air flow of the air outlet 10 are absorbed, noise pollution is avoided, and the working environment of workers is optimized; through the structure of the damper 5, the mechanical vibration generated in the operation process of the motor 4 is buffered, and meanwhile, through the structure of the sliding chute 7 and the mounting rod 13, the installation and the disassembly of the first sound-proof housing 9 and the second sound-proof housing 11 are facilitated, and the convenience of the device in use is improved.

In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the utility model disclosed above are intended only to assist in the explanation of the utility model. The preferred embodiments are not exhaustive or to limit the utility model to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, to thereby enable others skilled in the art to best understand and utilize the utility model. The utility model is limited only by the claims and the full scope and equivalents thereof.

Claims

1. The utility model provides a centrifugal fan noise reduction device, includes base (1), standing groove (2) and fan body (3), its characterized in that: the utility model discloses a fan, including base (1), air inlet, air outlet, air inlet (10), air inlet, air outlet, air inlet (10) and air outlet, standing groove (2) set up in base (1) upper surface one side, inside standing groove (2) are inlayed to fan body (3) one end, swing joint between fan body (3) and base (1), fan body (3) upper surface is provided with air outlet (10), second sound-proof housing (11) are inlayed to air outlet (10) week side, second sound-proof housing (11) internal surface is inlayed abatvoix (12), sliding fit between second sound-proof housing (11) internal surface and air outlet (10) week side, base (1) upper surface opposite side all welds has a plurality of attenuator (5), attenuator (5) upper surface welding has backup pad (6).

2. The noise reduction device for the centrifugal fan according to claim 1, wherein one end of the supporting plate (6) is welded with one surface of the fan body (3), a motor (4) is welded on the upper surface of the supporting plate (6), the motor (4) and the fan body (3) are matched with each other, and sliding grooves (7) are formed in two sides of the upper surface of the supporting plate (6).

3. The noise reduction device of the centrifugal fan according to claim 2, wherein two sliding grooves (7) are internally provided with sliding blocks (8), the sliding blocks (8) are in sliding fit with the sliding grooves (7), first sound-proof covers (9) are welded on the upper surfaces of the two sliding blocks (8), and the first sound-proof covers (9) are mutually matched with the motor (4).

4. The noise reduction device for the centrifugal fan according to claim 1, wherein the two opposite surfaces of the second sound-proof housing (11) are respectively provided with a mounting rod (13), one end of each mounting rod (13) penetrates through the two opposite surfaces of the second sound-proof housing (11), one end of each mounting rod (13) is matched with the second sound-proof housing (11) in a clamping manner, and the other ends of the two mounting rods (13) are respectively welded with a pull plate (15).

5. A noise reduction device for a centrifugal fan according to claim 4, wherein a connecting spring (14) is welded between one surface of each of the pull plates (15) and the opposite surface of the second sound-proof housing (11), and the two connecting springs (14) are wound around the peripheral side surfaces of the two mounting rods (13).

6. The noise reduction device of the centrifugal fan according to claim 1, wherein support columns (16) are welded on the peripheral sides of the lower surface of the base (1), support sleeves (17) are embedded at one ends of the support columns (16), and the peripheral sides of one ends of the support columns (16) are in sliding fit with the inner surfaces of the support sleeves (17).

7. The noise reduction device for the centrifugal fan according to claim 6, wherein a supporting spring is welded on the inner bottom surface of the supporting sleeve (17), and one end of the supporting spring is welded with the lower surface of the supporting column (16).