CN215719837U

CN215719837U - Noise-reduction centrifugal fan

Info

Publication number: CN215719837U
Application number: CN202121726002.0U
Authority: CN
Inventors: 楚伟峰
Original assignee: Shenyang Saidi Medical Instrument Co ltd
Current assignee: Shenyang Saidi Medical Instrument Co ltd
Priority date: 2021-07-28
Filing date: 2021-07-28
Publication date: 2022-02-01
Anticipated expiration: 2031-07-28

Abstract

The utility model relates to the technical field of centrifugal fans and discloses a noise-reducing centrifugal fan which comprises a bottom plate, wherein mounting blocks are fixedly mounted on two sides of the bottom plate, a damping spring is fixedly mounted at the top of the bottom plate, a mounting plate is fixedly mounted at the top end of the damping spring, first connecting columns are fixedly mounted on two sides of the bottom plate, second connecting columns are fixedly mounted on two sides of the mounting plate, and limiting plates are movably connected to the outer sides of the first connecting columns and the second connecting columns. This centrifugal fan of making an uproar falls can cushion the vibrations that driving motor produced at the operation in-process, and the rethread is equipped with the sound-proof box, can effectual isolated sound-proof box inside noise, avoids the noise to put outward to effectual centrifugal fan noise when the operation that has reduced is convenient for dismantle the filter screen from the inside of connecting pipe, and it is comparatively convenient to dismantle, is convenient for clear up the filter screen, thereby has reduced maintenance time, has improved maintenance efficiency.

Description

Noise-reduction centrifugal fan

Technical Field

The utility model relates to the technical field of centrifugal fans, in particular to a noise-reducing centrifugal fan.

Background

The centrifugal fan is a driven fluid machine which increases the gas pressure and discharges gas by means of input mechanical energy, and is widely used for ventilation, dust exhaust and cooling of factories, mines, tunnels, cooling towers, vehicles, ships and buildings; ventilation and draught of boilers and industrial furnaces; cooling and ventilation in air conditioning equipment and household appliances; drying and selecting grains; wind tunnel wind source and air cushion boat inflation and propulsion.

Present centrifugal fan casing, impeller, motor, base can produce resonance in the use to bring very big noise, bring very big influence to operational environment, and centrifugal fan uses the back for a long time, can pile up a large amount of dusts on the protection filter screen, consequently need will protect the filter screen when maintaining and dismantle and clear up, but current protection filter screen is fixed through the bolt usually, and the dismantlement process is comparatively loaded down with trivial details, thereby leads to centrifugal fan's maintenance time longer.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Aiming at the defects of the prior art in the background art, the utility model provides a noise-reducing centrifugal fan to overcome the defects that the existing noise-reducing centrifugal fan in the background art generates larger noise and the disassembly process of a protection filter screen is complicated when in use.

(II) technical scheme

In order to achieve the purpose, the utility model is realized by the following technical scheme:

a noise-reduction centrifugal fan comprises a bottom plate, wherein mounting blocks are fixedly mounted on two sides of the bottom plate, a damping spring is fixedly mounted at the top of the bottom plate, a mounting plate is fixedly mounted at the top end of the damping spring, first connecting columns are fixedly mounted on two sides of the bottom plate, second connecting columns are fixedly mounted on two sides of the mounting plate, limiting plates are movably connected to the outer sides of the first connecting columns and the outer sides of the second connecting columns, a sound insulation box is fixedly mounted at the top of the mounting plate, a connecting box is fixedly mounted at the top of the sound insulation box, a connecting pipe is fixedly mounted at one side of the sound insulation box, and a handle is fixedly mounted at the top of the connecting pipe;

the utility model discloses a soundproof box, including soundproof box, soundproof box's inner wall one side fixed mounting has driving motor, driving motor's one end fixed mounting has the drive shaft, the one end outside fixed mounting of drive shaft has the blade, soundproof box's interior diapire fixed mounting has the shell, one side fixed mounting of shell has the air-supply line, the top fixed mounting of shell has a tuber pipe, soundproof box includes first metal sheet, soundproof cotton, second metal sheet, soundproof cotton sets up the inboard at first metal sheet, the second metal sheet sets up the inboard at soundproof cotton, the bottom fixed mounting of handle has the filter screen, the equal fixed mounting in both sides of filter screen has the inserted block, the equal fixed mounting in inner wall both sides of connecting pipe has the fixture block.

Furthermore, damping spring's quantity has a plurality ofly, and is a plurality of damping spring is the rectangular array distribution, damping spring is damping spring.

Furthermore, the bottom of the connecting box is communicated with the top end of the air outlet pipe, and one side of the connecting box is provided with an air outlet.

Furthermore, the number of handles has two, two the handle is the symmetrical arrangement, the groove with handle looks adaptation is seted up at the top of connecting pipe.

Furthermore, one end of the driving shaft penetrates through one side of the shell and extends to the inside, and one end of the connecting pipe is fixed with the air inlet pipe.

Furthermore, the front side of the sound insulation box is provided with a box door, and the sound insulation box, the connecting box and the connecting pipe are of an integrated structure.

Furthermore, the bottom of the filter screen is movably connected with the inner bottom wall of the connecting pipe, and the inserting block is matched with the clamping block.

Theory of operation, this centrifugal fan of making an uproar should fall, in the use, when driving motor produces the vibration, cushion vibrations through damping spring's flexible, simultaneously keep apart with the external world through noise in the soundproof cotton with the soundproof cotton, when needing to clear up the filter screen, with hand direct pulling handle, pull out from the fixture block through the handle drive inserted block, the filter screen is pulled out this moment, the clearance finishes the back, align inserted block and fixture block, then press the handle, the inside that the inserted block inserted the fixture block this moment, the filter screen is fixed in the inside of connecting pipe this moment.

The electrical components presented in the document are all electrically connected with an external master controller and 220V mains, and the master controller can be a conventional known device controlled by a computer or the like.

(III) advantageous effects

The utility model provides a noise reduction centrifugal fan which has the following beneficial effects:

(1) this centrifugal fan of making an uproar falls through the cooperation setting between bottom plate, damping spring, mounting panel, first spliced pole, second spliced pole, the limiting plate, can cushion the vibrations that driving motor produced at the operation in-process, and the rethread is equipped with the sound-proof box, can effectually completely cut off the noise of sound-proof box inside, avoids the noise to put outward to the effectual noise that reduces centrifugal fan when the operation.

(2) This centrifugal fan of making an uproar falls through the cooperation setting between handle, inserted block, the fixture block, is convenient for dismantle the filter screen from the inside of connecting pipe, and it is comparatively convenient to dismantle, is convenient for clear up the filter screen to reduce maintenance time, improved maintenance efficiency.

Drawings

Fig. 1 is a schematic overall front view structure diagram of a noise reduction centrifugal fan according to the present invention;

FIG. 2 is a schematic perspective view of a bottom plate of the noise-reducing centrifugal fan according to the present invention;

FIG. 3 is a schematic cross-sectional view of a noise reduction centrifugal fan noise insulation box according to the present invention;

FIG. 4 is a schematic perspective view of a connecting pipe of the noise-reducing centrifugal fan according to the present invention;

fig. 5 is a schematic side sectional view of a connecting pipe of the noise reduction centrifugal fan according to the present invention.

In the figure: 1. a base plate; 2. mounting blocks; 3. a damping spring; 4. mounting a plate; 5. a first connecting column; 6. a second connecting column; 7. a limiting plate; 8. a sound insulation box; 9. a connecting box; 10. a connecting pipe; 11. a handle; 12. a drive motor; 13. a drive shaft; 14. a blade; 15. a housing; 16. an air inlet pipe; 17. an air outlet pipe; 18. a first metal plate; 19. sound insulation cotton; 20. a second metal plate; 21. a filter screen; 22. inserting a block; 23. and (7) clamping blocks.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-5, the present invention provides a noise reduction centrifugal fan;

as shown in the figure 1-2, the sound insulation box comprises a bottom plate 1, wherein mounting blocks 2 are fixedly mounted on two sides of the bottom plate 1, damping springs 3 are fixedly mounted on the top of the bottom plate 1, a plurality of damping springs 3 are arranged, the damping springs 3 are arranged in a rectangular array, a damping spring is arranged on each damping spring 3, a mounting plate 4 is fixedly mounted on the top end of each damping spring 3, first connecting columns 5 are fixedly mounted on two sides of the bottom plate 1, second connecting columns 6 are fixedly mounted on two sides of the mounting plate 4, limiting plates 7 are movably connected to the outer sides of the first connecting columns 5 and the outer sides of the second connecting columns 6, a sound insulation box 8 is fixedly mounted on the top of the mounting plate 4, a box door is arranged on the front side of the sound insulation box 8, a connecting box 9 is fixedly mounted on the top of the sound insulation box 8, a connecting pipe 10 is fixedly mounted on one side of the sound insulation box 8, the connecting box 9 and the connecting pipe 10 are of an integrated structure, the top of the connecting pipe 10 is fixedly provided with two handles 11, the two handles 11 are symmetrically arranged, and the top of the connecting pipe 10 is provided with a groove matched with the handles 11;

according to the drawings of 3-5, a driving motor 12 is fixedly installed on one side of the inner wall of a sound insulation box 8, vibration generated by the driving motor 12 in the operation process can be buffered through the matching arrangement of a bottom plate 1, a damping spring 3, a mounting plate 4, a first connecting column 5, a second connecting column 6 and a limiting plate 7, and then the sound insulation box 8 can effectively isolate noise inside the sound insulation box 8 and avoid the noise from being discharged outside, so that the noise of a centrifugal fan in the operation process is effectively reduced, a driving shaft 13 is fixedly installed at one end of the driving motor 12, blades 14 are fixedly installed on the outer side of one end of the driving shaft 13, a shell 15 is fixedly installed on the inner bottom wall of the sound insulation box 8, one end of the driving shaft 13 penetrates through one side of the shell 15 and extends to the inside, an air inlet pipe 16 is fixedly installed on one side of the shell 15, and one end of the connecting pipe 10 is fixed with the air inlet pipe 16, the top of the shell 15 is fixedly provided with an air outlet pipe 17, the bottom of the connecting box 9 is communicated with the top end of the air outlet pipe 17, one side of the connecting box 9 is provided with an air outlet, the soundproof box 8 comprises a first metal plate 18, soundproof cotton 19 and a second metal plate 20, the soundproof cotton 19 is arranged on the inner side of the first metal plate 18, the second metal plate 20 is arranged on the inner side of the soundproof cotton 19, the bottom of the handle 11 is fixedly provided with a filter screen 21, the bottom of the filter screen 21 is movably connected with the inner bottom wall of the connecting pipe 10, both sides of the filter screen 21 are fixedly provided with insert blocks 22, both sides of the inner wall of the connecting pipe 10 are fixedly provided with fixture blocks 23, the insert blocks 22 are matched with the fixture blocks 23, the filter screen 21 can be conveniently detached from the inside of the connecting pipe 10 through the matching arrangement of the handle 11, the insert blocks 22 and the fixture blocks 23, the disassembly is convenient, the filter screen 21 can be conveniently cleaned, thereby reducing the maintenance time, the maintenance efficiency is improved.

It is to be understood that, unless otherwise expressly stated or limited, the terms "disposed," "mounted," "connected," "secured," and the like are intended to be construed broadly and can include, for example, fixed and removable connections; or indirectly through an intermediary. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. A noise reduction centrifugal fan comprises a bottom plate (1) and is characterized in that mounting blocks (2) are fixedly mounted on two sides of the bottom plate (1), the top of the bottom plate (1) is fixedly provided with a damping spring (3), the top end of the damping spring (3) is fixedly provided with a mounting plate (4), the two sides of the bottom plate (1) are both fixedly provided with first connecting columns (5), the two sides of the mounting plate (4) are both fixedly provided with second connecting columns (6), the outer sides of the first connecting column (5) and the second connecting column (6) are movably connected with a limiting plate (7), the top of the mounting plate (4) is fixedly provided with a sound insulation box (8), the top of the sound insulation box (8) is fixedly provided with a connecting box (9), a connecting pipe (10) is fixedly installed on one side of the sound insulation box (8), and a handle (11) is fixedly installed at the top of the connecting pipe (10);

the utility model discloses a soundproof cabinet, including soundproof cabinet, inner wall one side fixed mounting of soundproof cabinet (8) has driving motor (12), the one end fixed mounting of driving motor (12) has drive shaft (13), the one end outside fixed mounting of drive shaft (13) has blade (14), the interior diapire fixed mounting of soundproof cabinet (8) has shell (15), one side fixed mounting of shell (15) has air-supply line (16), the top fixed mounting of shell (15) has air-out pipe (17), soundproof cabinet (8) includes first metal sheet (18), soundproof cotton (19), second metal sheet (20), soundproof cotton (19) set up the inboard at first metal sheet (18), second metal sheet (20) set up the inboard at soundproof cotton (19), the bottom fixed mounting of handle (11) has filter screen (21), the equal fixed mounting in both sides of filter screen (21) has inserted block (22), and clamping blocks (23) are fixedly mounted on two sides of the inner wall of the connecting pipe (10).

2. A noise-reducing centrifugal fan according to claim 1, wherein the number of the damping springs (3) is multiple, the damping springs (3) are distributed in a rectangular array, and the damping springs (3) are damping springs.

3. The noise-reduction centrifugal fan according to claim 1, wherein the bottom of the connection box (9) is communicated with the top end of the air outlet pipe (17), and an air outlet is formed in one side of the connection box (9).

4. A noise-reducing centrifugal fan according to claim 1, wherein the number of the handles (11) is two, the two handles (11) are symmetrically arranged, and the top of the connecting pipe (10) is provided with a groove matched with the handles (11).

5. A noise reducing centrifugal fan according to claim 1, wherein one end of the driving shaft (13) penetrates one side of the housing (15) and extends to the inside, and one end of the connecting pipe (10) is fixed to the air inlet pipe (16).

6. The noise reduction centrifugal fan according to claim 1, wherein a box door is opened at the front side of the sound insulation box (8), and the sound insulation box (8), the connection box (9) and the connection pipe (10) are of an integrated structure.

7. The noise reduction centrifugal fan according to claim 1, wherein the bottom of the filter screen (21) is movably connected with the inner bottom wall of the connecting pipe (10), and the insert block (22) is matched with the fixture block (23).