CN220505402U - Noise-reducing air inlet structure of high-speed centrifugal fan - Google Patents
Noise-reducing air inlet structure of high-speed centrifugal fan Download PDFInfo
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- CN220505402U CN220505402U CN202322127942.3U CN202322127942U CN220505402U CN 220505402 U CN220505402 U CN 220505402U CN 202322127942 U CN202322127942 U CN 202322127942U CN 220505402 U CN220505402 U CN 220505402U
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- air inlet
- block
- centrifugal fan
- noise
- inlet pipe
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- 230000037431 insertion Effects 0.000 abstract description 2
- 238000001816 cooling Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000009423 ventilation Methods 0.000 description 3
- 238000011900 installation process Methods 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
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Abstract
The utility model discloses a noise-reducing air inlet structure of a high-speed centrifugal fan, which comprises a centrifugal fan and a noise-reducing air inlet pipe, wherein a mounting hole is formed in the noise-reducing air inlet pipe, a connecting block is arranged on the centrifugal fan, the connecting block is fixedly connected with the centrifugal fan, a fixing component is arranged on the noise-reducing air inlet pipe, sound-absorbing cotton is arranged on the inner side of the noise-reducing air inlet pipe, the sound-absorbing cotton is fixedly connected with the noise-reducing air inlet pipe, a positioning block compresses a supporting spring through a sliding block, when a groove on the connecting block moves to the positioning block, the pressure born by the supporting spring disappears, the supporting spring drives the positioning block to be reset and inserted into the groove of the connecting block through the sliding block, the connecting block is limited and fixed, the noise-reducing air inlet pipe can be mounted on the centrifugal fan only through simple insertion, a plurality of bolts and nuts are not required to be mounted when the noise-reducing air inlet pipe is mounted, and the mounting process is simple and convenient, and time-saving and labor-saving.
Description
Technical Field
The utility model relates to the technical field of high-speed centrifugal fans, in particular to a noise-reducing air inlet structure of a high-speed centrifugal fan.
Background
The centrifugal fan is a driven fluid machine which is used for increasing the pressure of gas and discharging the gas by means of the input mechanical energy, is widely used for ventilation, dust discharge and cooling of factories, mines, tunnels, cooling towers, vehicles, ships and buildings, ventilation and air induction of boilers and industrial furnaces and kilns, cooling and ventilation in air conditioning equipment and household electrical appliances, drying and selection of grains, inflation and propulsion of wind tunnel wind sources and air cushion ships and the like, has the defect of larger noise when the centrifugal fan works, so that the noise reduction air inlet pipe is required to be installed on the centrifugal fan, the current noise reduction air inlet pipe is fixed on the centrifugal fan through a plurality of bolts and nuts when being installed, special tools are required to be used when being installed, the installation of the noise reduction air inlet pipe is troublesome, and the installation process is time-consuming and labor-consuming.
For the problems in the related art, no effective solution has been proposed at present.
Disclosure of Invention
Aiming at the problems in the related art, the utility model provides a noise reduction air inlet structure of a high-speed centrifugal fan, which aims to overcome the technical problems in the prior art.
For this purpose, the utility model adopts the following specific technical scheme:
the utility model provides a high-speed centrifugal fan structure of intaking of making an uproar falls, includes centrifugal fan and the intake pipe of making an uproar falls, set up the mounting hole in the intake pipe of making an uproar falls, be equipped with the connecting block on the centrifugal fan, connecting block and centrifugal fan fixed connection, be equipped with fixed subassembly in the intake pipe of making an uproar falls, the intake pipe inboard of making an uproar falls is equipped with and inhales the sound cotton, inhale the sound cotton and make an uproar intake pipe fixed connection falls.
As a further scheme of the utility model, the fixing assembly comprises a fixing block, the fixing block is fixedly connected with the noise reduction air inlet pipe, a pull rod is arranged on the outer side of the fixing block and penetrates through the fixing block, the pull rod is in sliding connection with the fixing block, the other end of the pull rod is fixedly connected with a sliding block, the sliding block is in sliding connection with the fixing block, a positioning block is arranged on the outer side of the sliding block, and the positioning block is fixedly connected with the sliding block.
As a further scheme of the utility model, the positioning block penetrates through the fixed block, and the positioning block is in sliding connection with the fixed block.
As a further scheme of the utility model, the positioning block penetrates through the noise reduction air inlet pipe, and the positioning block is in sliding connection with the noise reduction air inlet pipe.
As a further scheme of the utility model, the positioning block penetrates through the connecting block, the positioning block is in sliding connection with the connecting block, and the outer side of the positioning block is obliquely arranged.
As a further scheme of the utility model, a supporting spring is sleeved outside the pull rod between the sliding block and the fixed block, one end of the supporting spring is fixedly connected with the sliding block, and the other end of the supporting spring is fixedly connected with the fixed block.
As a further scheme of the utility model, the noise reduction air inlet pipe is provided with a first sound-proof cover, and the noise reduction air inlet pipe is provided with a second sound-proof cover.
As a further scheme of the utility model, a bolt is arranged on the outer side of the first sound-proof housing, the bolt penetrates through the first sound-proof housing, the bolt is in spiral connection with the first sound-proof housing, the bolt penetrates through the second sound-proof housing, the bolt is in spiral connection with the second sound-proof housing, and a nut is in spiral connection with the outer side of the bolt.
The beneficial effects of the utility model are as follows: through connecting block, fixed block, the pull rod, the slider, locating piece and supporting spring that set up, when installing the intake pipe of making an uproar on centrifugal fan in the use, the recess that makes an uproar in the intake pipe of making an uproar aims at the connecting block on the centrifugal fan, promote the intake pipe of making an uproar, the connecting block slides in the intake pipe of making an uproar that makes an uproar, the connecting block can extrude the locating piece and drive the locating piece motion when sliding, the locating piece compresses supporting spring through the slider, when the recess on the connecting block moves locating piece department, the pressure that supporting spring received disappears, supporting spring drives the locating piece through the slider and resets and insert in the recess of connecting block, spacing fixed to the connecting block, can install the intake pipe of making an uproar on centrifugal fan, thereby only need install the intake pipe of making an uproar through simple grafting when the intake pipe of making an uproar, it is unnecessary to install a plurality of bolt and nut, the installation is simple and convenient, labour saving and time saving.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in 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 other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic overall structure of a noise reduction intake structure of a high-speed centrifugal fan according to an embodiment of the utility model;
fig. 2 is a schematic view of an installation structure of sound absorbing cotton of a noise reduction air intake structure of a high-speed centrifugal fan according to an embodiment of the present utility model;
FIG. 3 is a schematic view of the structure at A of FIG. 1 of a noise reducing intake structure of a high speed centrifugal fan according to an embodiment of the utility model;
fig. 4 is a schematic diagram of the B-site structure of fig. 2 of a noise reduction air intake structure of a high-speed centrifugal fan according to an embodiment of the utility model.
In the figure: 1. a centrifugal fan; 2. a noise reduction air inlet pipe; 3. a mounting hole; 4. a connecting block; 5. a fixing assembly; 51. a fixed block; 52. a pull rod; 53. a slide block; 54. a positioning block; 55. a support spring; 6. sound absorbing cotton; 7. a first soundproof cover; 8. a second soundproof cover; 9. a bolt; 10. and (3) a nut.
Detailed Description
For the purpose of further illustrating the various embodiments, the present utility model provides the accompanying drawings, which are a part of the disclosure of the present utility model, and which are mainly used to illustrate the embodiments and, together with the description, serve to explain the principles of the embodiments, and with reference to these descriptions, one skilled in the art will recognize other possible implementations and advantages of the present utility model, wherein elements are not drawn to scale, and like reference numerals are generally used to designate like elements.
According to an embodiment of the utility model, a noise reduction air inlet structure of a high-speed centrifugal fan is provided.
Referring to fig. 1-4 of the specification, a noise reduction air inlet structure of a high-speed centrifugal fan according to an embodiment of the utility model includes a centrifugal fan 1 and a noise reduction air inlet pipe 2, a mounting hole 3 is formed in the noise reduction air inlet pipe 2, a connecting block 4 is arranged on the centrifugal fan 1, the connecting block 4 is fixedly connected with the centrifugal fan 1, a fixing component 5 is arranged on the noise reduction air inlet pipe 2, sound absorbing cotton 6 is arranged on the inner side of the noise reduction air inlet pipe 2, the sound absorbing cotton 6 is fixedly connected with the noise reduction air inlet pipe 2, when the noise reduction air inlet pipe 2 is mounted on the centrifugal fan 1 in the use process, a groove on the noise reduction air inlet pipe 2 is aligned with the connecting block 4 on the centrifugal fan 1, the noise reduction air inlet pipe 2 is pushed to slide in the noise reduction air inlet pipe 2, the connecting block 4 can squeeze a positioning block 54 to drive a positioning block 54 to move when sliding, the positioning block 54 compresses a supporting spring 55 through a sliding block 53, when the groove on the connecting block 4 moves to the positioning block 54, the supporting spring 55 drives the positioning block 54 to be reset and inserted into the groove of the connecting block 4 through the sliding block 53, the noise reduction air inlet pipe 2 can be mounted on the noise reduction air inlet pipe 1, and thus the noise reduction air inlet pipe 2 can be mounted on the centrifugal fan 1 through a plurality of bolts can be mounted easily and can be mounted conveniently, and time-saving bolts can be saved.
Referring to fig. 1, 2 and 4 of the present disclosure, as a further scheme of the present disclosure, the fixing assembly 5 includes a fixing block 51, the fixing block 51 is fixedly connected with the noise reduction air inlet pipe 2, a pull rod 52 is disposed at an outer side of the fixing block 51, the pull rod 52 penetrates through the fixing block 51, the pull rod 52 is slidably connected with the fixing block 51, a sliding block 53 is fixedly connected with another end of the pull rod 52, the sliding block 53 is slidably connected with the fixing block 51, a positioning block 54 is disposed at an outer side of the sliding block 53, and the positioning block 54 is fixedly connected with the sliding block 53, so that the positioning block 54 can be driven to move by the setting.
In an embodiment referring to fig. 2 and 4 of the present disclosure, as a further aspect of the present disclosure, the positioning block 54 penetrates the fixing block 51, the positioning block 54 is slidably connected to the fixing block 51, and the positioning block 54 can penetrate the fixing block 51.
In an embodiment referring to fig. 2 and 4 of the present disclosure, as a further aspect of the present disclosure, a positioning block 54 penetrates through the noise reduction air intake pipe 2, the positioning block 54 is slidably connected to the noise reduction air intake pipe 2, and the positioning block 54 can penetrate through the noise reduction air intake pipe 2.
In an embodiment referring to fig. 2 and 4 of the present disclosure, as a further aspect of the present disclosure, the positioning block 54 penetrates through the connecting block 4, the positioning block 54 is slidably connected with the connecting block 4, the outer side of the positioning block 54 is inclined, and the positioning block 54 can be inserted into the connecting block 4.
In an embodiment referring to fig. 2 and 4 of the specification, as a further scheme of the present utility model, a supporting spring 55 is sleeved on the outer side of the pull rod 52 between the slider 53 and the fixed block 51, one end of the supporting spring 55 is fixedly connected with the slider 53, and the other end of the supporting spring 55 is fixedly connected with the fixed block 51, so that the positioning block 54 can be driven to reset by the arrangement.
In an embodiment, referring to fig. 1, 2 and 3 of the specification, as a further aspect of the present utility model, a first sound-insulating cover 7 is provided on the noise-reducing air intake pipe 2, and a second sound-insulating cover 8 is provided on the noise-reducing air intake pipe 2, which is capable of insulating sound from the noise-reducing air intake pipe 2.
Referring to fig. 1, 2 and 3 of the specification, as a further scheme of the present utility model, a bolt 9 is disposed outside the first sound-proof housing 7, the bolt 9 penetrates through the first sound-proof housing 7, the bolt 9 is in screwed connection with the first sound-proof housing 7, the bolt 9 penetrates through the second sound-proof housing 8, the bolt 9 is in screwed connection with the second sound-proof housing 8, a nut 10 is screwed on the outside of the bolt 9, and this arrangement can mount the first sound-proof housing 7 and the second sound-proof housing 8 on the noise reduction air inlet pipe 2.
When the noise-reducing air inlet pipe 2 is installed on the centrifugal fan 1 in the use process, the grooves on the noise-reducing air inlet pipe 2 are aligned with the connecting blocks 4 on the centrifugal fan 1, the noise-reducing air inlet pipe 2 is pushed, the connecting blocks 4 slide in the noise-reducing air inlet pipe 2, the connecting blocks 4 can extrude the positioning blocks 54 to drive the positioning blocks 54 to move when sliding, the positioning blocks 54 compress the supporting springs 55 through the sliding blocks 53, when the grooves on the connecting blocks 4 move to the positioning blocks 54, the pressure born by the supporting springs 55 disappears, the supporting springs 55 drive the positioning blocks 54 to reset and insert into the grooves on the connecting blocks 4 through the sliding blocks 53, the connecting blocks 4 are limited and fixed, the noise-reducing air inlet pipe 2 can be installed on the centrifugal fan 1, therefore, the noise-reducing air inlet pipe 2 can be installed only through simple and convenient insertion, a plurality of bolts and nuts are not needed to be installed, the installation process is time-saving and labor-saving, after the air inlet pipe 2 is installed, the first sound-insulating cover 7 and the second sound-insulating cover 8 are installed and fixed on the air inlet pipe 2 through the bolts 9, the noise-reducing function of noise-reducing is played, meanwhile, the sound-absorbing cotton 6 is arranged inside the noise-reducing air inlet pipe 2, the noise-reducing function is enabled, and the noise-reducing air inlet pipe 2 has the noise-reducing function of noise-reducing function.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.
Claims (8)
1. The utility model provides a high-speed centrifugal fan structure of intaking of making an uproar falls, includes centrifugal fan (1) and falls intake pipe (2) of making an uproar, a serial communication port, set up mounting hole (3) on falling intake pipe (2), be equipped with connecting block (4) on centrifugal fan (1), connecting block (4) and centrifugal fan (1) fixed connection, be equipped with fixed subassembly (5) on falling intake pipe (2), it is cotton (6) to fall intake pipe (2) inboard to be equipped with of making an uproar, inhale cotton (6) and fall intake pipe (2) fixed connection of making an uproar.
2. The noise reduction air inlet structure of the high-speed centrifugal fan according to claim 1, wherein the fixing component (5) comprises a fixing block (51), the fixing block (51) is fixedly connected with the noise reduction air inlet pipe (2), a pull rod (52) is arranged on the outer side of the fixing block (51), the pull rod (52) penetrates through the fixing block (51), the pull rod (52) is slidably connected with the fixing block (51), a sliding block (53) is fixedly connected with the other end of the pull rod (52), the sliding block (53) is slidably connected with the fixing block (51), a positioning block (54) is arranged on the outer side of the sliding block (53), and the positioning block (54) is fixedly connected with the sliding block (53).
3. The noise reduction air inlet structure of the high-speed centrifugal fan according to claim 2, wherein the positioning block (54) penetrates through the fixed block (51), and the positioning block (54) is slidably connected with the fixed block (51).
4. The noise-reducing air inlet structure of the high-speed centrifugal fan according to claim 2, wherein the positioning block (54) penetrates through the noise-reducing air inlet pipe (2), and the positioning block (54) is in sliding connection with the noise-reducing air inlet pipe (2).
5. The noise reduction air inlet structure of the high-speed centrifugal fan according to claim 2, wherein the positioning block (54) penetrates through the connecting block (4), the positioning block (54) is in sliding connection with the connecting block (4), and the outer side of the positioning block (54) is obliquely arranged.
6. The noise reduction air inlet structure of the high-speed centrifugal fan according to claim 2, wherein a supporting spring (55) is sleeved outside a pull rod (52) between the sliding block (53) and the fixed block (51), one end of the supporting spring (55) is fixedly connected with the sliding block (53), and the other end of the supporting spring (55) is fixedly connected with the fixed block (51).
7. The noise-reducing air inlet structure of the high-speed centrifugal fan according to claim 1, wherein the noise-reducing air inlet pipe (2) is provided with a first sound-insulating cover (7), and the noise-reducing air inlet pipe (2) is provided with a second sound-insulating cover (8).
8. The noise reduction air inlet structure of the high-speed centrifugal fan according to claim 7, wherein a bolt (9) is arranged on the outer side of the first sound-proof housing (7), the bolt (9) penetrates through the first sound-proof housing (7), the bolt (9) is in spiral connection with the first sound-proof housing (7), the bolt (9) penetrates through the second sound-proof housing (8), the bolt (9) is in spiral connection with the second sound-proof housing (8), and a nut (10) is in spiral connection on the outer side of the bolt (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322127942.3U CN220505402U (en) | 2023-08-09 | 2023-08-09 | Noise-reducing air inlet structure of high-speed centrifugal fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322127942.3U CN220505402U (en) | 2023-08-09 | 2023-08-09 | Noise-reducing air inlet structure of high-speed centrifugal fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220505402U true CN220505402U (en) | 2024-02-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322127942.3U Active CN220505402U (en) | 2023-08-09 | 2023-08-09 | Noise-reducing air inlet structure of high-speed centrifugal fan |
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| Country | Link |
|---|---|
| CN (1) | CN220505402U (en) |
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2023
- 2023-08-09 CN CN202322127942.3U patent/CN220505402U/en active Active
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