CN218030829U

CN218030829U - Noise eliminator for indoor ventilation fan

Info

Publication number: CN218030829U
Application number: CN202221969456.5U
Authority: CN
Inventors: 郭建磊
Original assignee: Dongquan Petroleum Tech & Devel Co ltd
Current assignee: Dongquan Petroleum Tech & Devel Co ltd
Priority date: 2022-07-28
Filing date: 2022-07-28
Publication date: 2022-12-13
Anticipated expiration: 2032-07-28

Abstract

The utility model relates to the technical field of noise elimination devices, and discloses a noise elimination device for an indoor ventilation fan, which comprises a main body component; an adjusting component is arranged in the shell; the knob is arranged at the bottom of the shell, the inner side wall of the shell is rotatably connected with the tube body, the bottom end of the tube body is fixedly connected with the knob, and the wind shield is arranged on the outer side wall of the tube body; noise and indoor air that the fan during operation produced pass through the air exit and discharge, control the wind speed through windshield two and windshield one, and carry out the passback through the noise that the deep bead produced the fan, and play the effect of noise reduction with the baffle cooperation, and can be through rotating the knob, adjust the gap between windshield two and the windshield one, change the wind speed size, thereby realize better noise cancelling effect, accomplished to carry out multiple amortization to the noise that the fan during operation produced and handled, improve the noise cancelling performance of device, the problem that current indoor ventilation fan does not possess better noise cancelling function has been solved.

Description

Noise eliminator for indoor ventilation fan

Technical Field

The utility model relates to a noise eliminator technical field specifically is a noise eliminator that indoor ventilation fan used.

Background

The fan is a machine which depends on input mechanical energy to improve gas pressure and discharge gas, and is a driven fluid machine, the fan comprises a ventilator, a blower and a wind driven generator, the fan is also commonly used for ventilating indoors, the fan has the characteristics of simple and convenient installation, attractive appearance, good ventilation effect and the like, the existing indoor ventilating fan does not have a good noise elimination function, the noise value is generally 70-88dB (A) when the fan normally operates, because the building density is big in the city to the condition that the industry factory building and civil building intercrossed and sit is more, consequently noise pollution causes the interference to city resident's life, work, study, and influence people's physical and mental health, some indoor ventilation fan adopts and sets up the noise elimination case at the fan air outlet, be provided with sound absorbing material in the box, can play better noise elimination effect, but it can not adjust according to the in service behavior, have certain limitation, influence noise elimination effect.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a not enough to prior art, the utility model provides a noise eliminator that indoor ventilation fan used possesses the advantage of better noise elimination function, has solved the problem that current indoor ventilation fan does not possess better noise elimination function.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: a noise eliminator for indoor ventilation fan comprises a main body assembly;

the main body assembly comprises an air outlet and a shell; the bottom of the air outlet is provided with the shell, and an adjusting component is arranged in the shell;

the adjusting assembly comprises a knob, a pipe body, a wind shield, a first wind shield sheet, a second wind shield sheet, a partition plate, a hole body and an exhaust hole; the utility model discloses a wind screen, including casing, body, baffle, casing inside wall, body bottom fixed connection, body lateral wall, wind screen, baffle top, the casing bottom is provided with the knob, the casing inside wall rotates to be connected the body, body bottom fixed connection the knob, the body lateral wall is provided with the wind screen, the casing inside wall is provided with wind screen one, the body lateral wall is provided with wind screen two, the casing inside wall is provided with the baffle, the baffle top has been seted up the cavernosum, the casing lateral wall has seted up a plurality ofly the exhaust hole.

Preferably: the diameter of the wind deflector is larger than that of the wind deflector.

Preferably: the partition plate is provided with an auxiliary assembly; the auxiliary assembly comprises a third wind shield sheet and a fourth wind shield sheet; the hole body is internally provided with a third wind-shielding sheet, and the outer side wall of the pipe body is provided with a fourth wind-shielding sheet.

Preferably: the auxiliary assembly further comprises a filter screen; the filter screen is arranged on the inner side wall of the shell.

Preferably, the following components: the inner side wall of the shell is provided with sound-absorbing cotton.

Preferably, the following components: the outer side wall of the shell is provided with the sound-absorbing cotton.

Preferably, the following components: the shell lateral wall is provided with a plurality of observation windows.

(III) advantageous effects

Compared with the prior art, the utility model provides a noise eliminator that indoor ventilation fan used possesses following beneficial effect:

the utility model discloses possess the advantage of better noise elimination function, when using, the noise that the fan during operation produced and indoor air pass through the air exit and discharge, control the wind speed through windshield two and windshield one, and carry out the passback through the noise that the deep bead produced the fan, and play the effect of noise reduction with the baffle cooperation, and can be through rotating the knob, adjust the gap between windshield two and the windshield one, change the wind speed size, thereby realize better noise cancelling effect, the noise that has accomplished to produce the fan during operation carries out multiple amortization and handles, improve the noise cancelling performance of device, the noise pollution who prevents the fan during operation and produce is to city resident's life, work, study causes the interference, the problem that current indoor ventilation fan does not possess better noise elimination function is solved.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the front internal structure of the adjusting assembly of the present invention;

fig. 3 is a schematic top view of the adjusting assembly of the present invention;

fig. 4 is a schematic perspective view of the adjusting assembly of the present invention.

In the figure: 1. a body assembly; 11. an air outlet; 12. a housing;

2. an adjustment assembly; 21. a knob; 22. a pipe body; 23. a wind deflector; 24. a first wind shield sheet; 25. a second wind shield sheet; 26. a partition plate; 27. a porous body; 28. an exhaust hole;

3. an auxiliary component; 31. a third wind shield sheet; 32. a fourth wind shield sheet; 33. filtering with a screen;

4. sound-absorbing cotton;

5. and (4) an observation window.

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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

Example one

A noise eliminator for indoor ventilation fan comprises a main body component 1; the main body component 1 comprises an air outlet 11 and a shell 12; the bottom of the air outlet 11 is provided with the shell 12, the shell 12 is internally provided with an adjusting component 2;

the adjusting assembly 2 comprises a knob 21, a pipe body 22, a wind shield 23, a first wind shield piece 24, a second wind shield piece 25, a partition plate 26, a hole body 27 and an exhaust hole 28; the knob 21 is arranged at the bottom of the shell 12, the inner side wall of the shell 12 is rotatably connected with the tube body 22, the bottom end of the tube body 22 is fixedly connected with the knob 21, the wind shield 23 is arranged on the outer side wall of the tube body 22, the first wind shield piece 24 is arranged on the inner side wall of the shell 12, the second wind shield piece 25 is arranged on the outer side wall of the tube body 22, the partition plate 26 is arranged on the inner side wall of the shell 12, the hole body 27 is formed in the top of the partition plate 26, and the exhaust holes 28 are formed in the outer side wall of the shell 12; the diameter of the wind deflector 23 is larger than the diameter of the first wind deflector 24.

Referring to fig. 1-4, when in use, the blower is turned on, the blower discharges indoor air through the air outlet 11, and ventilates indoors, the air discharged from the air outlet 11 directly enters the casing 12 and is respectively contacted with the second wind-blocking sheet 25 and the first wind-blocking sheet 24, and the air passes through the gap between the second wind-blocking sheet 25 and the first wind-blocking sheet 24 until contacting with the wind-blocking sheet 23, the inclined surface at the top of the wind-blocking sheet 23 guides the air, so that the air is discharged to the outdoor through the hole 27 on the partition 26 and the exhaust holes 28 on the casing 12 after contacting with the partition 26, and the air speed is controlled through the second wind-blocking sheet 25 and the first wind-blocking sheet 24 during discharging, and noise generated by the fan is returned through the wind-blocking sheet 23, so as to reduce the noise, and finally, a secondary noise reduction effect is achieved through the partition 26, when the second wind-blocking sheet 25 and the first wind-blocking sheet 24 need to be adjusted, the knob 21 is turned to drive the pipe body 22 to turn, so as to adjust the size of the gap between the second wind-blocking sheet 25 and the first wind-blocking sheet 24, thereby achieving a better noise reduction effect; the wind shield 23 can achieve a good return effect on the sound generated by the fan, and a noise reduction effect is achieved.

Example two

Auxiliary functions are added on the basis of the first embodiment;

the partition plate 26 is provided with an auxiliary component 3; the auxiliary assembly 3 comprises a third windshield sheet 31 and a fourth windshield sheet 32; the third wind-blocking sheet 31 is arranged in the hole body 27, and the fourth wind-blocking sheet 32 is arranged on the outer side wall of the pipe body 22; the auxiliary assembly 3 further comprises a sieve 33; the filter screen 33 is arranged on the inner side wall of the shell 12; the inner side wall of the shell 12 is provided with sound-absorbing cotton 4; the sound-absorbing cotton 4 is arranged on the outer side wall of the shell 12; the outer side wall of the shell 12 is provided with a plurality of observation windows 5.

Referring to fig. 1-4, when the knob 21 is rotated, the knob 21 drives the second wind-shielding sheet 25 and the fourth wind-shielding sheet 32 to rotate simultaneously through the tube 22 until the adjustment is proper, and then the knob 21 stops rotating, and at this time, the wind passing through the first wind-shielding sheet 24 and the second wind-shielding sheet 25 passes through the third wind-shielding sheet 31 and the fourth wind-shielding sheet 32 again to achieve a multiple-time noise reduction effect in cooperation with the adjustment assembly 2; the filter screen 33 prevents impurities or large-particle objects in the air outlet 11 from influencing the normal use of the adjusting component 2 and the auxiliary component 3; noise passing through the inside of the shell 12 is subjected to auxiliary noise elimination through the sound absorption cotton 4, so that the noise elimination effect of the device is improved; the sound absorption cotton 4 on the outer side wall of the shell 12 can absorb sound passing through the exhaust holes 28, so that the noise elimination effect of the device is improved, and the sound absorption cotton 4 has air permeability and does not influence the normal exhaust of the exhaust holes 28; when the adjusting assembly 2 is used, a worker directly sees the positions of the first windshield sheet 24, the second windshield sheet 25, the third windshield sheet 31 and the fourth windshield sheet 32 through the plurality of observation windows 5, and adjustment is facilitated.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a noise eliminator that indoor ventilation fan used which characterized in that: comprises a main body component (1);

the main body component (1) comprises an air outlet (11) and a shell (12); the shell (12) is arranged at the bottom of the air outlet (11), and the adjusting component (2) is arranged in the shell (12);

the adjusting assembly (2) comprises a knob (21), a pipe body (22), a wind shield (23), a first wind shield sheet (24), a second wind shield sheet (25), a partition plate (26), a hole body (27) and an exhaust hole (28); casing (12) bottom is provided with knob (21), casing (12) inside wall rotates to be connected body (22), body (22) bottom fixed connection knob (21), body (22) lateral wall is provided with deep bead (23), casing (12) inside wall is provided with deep bead (24), body (22) lateral wall is provided with deep bead two (25), casing (12) inside wall is provided with baffle (26), baffle (26) top has been seted up hole body (27), a plurality ofly has been seted up to casing (12) lateral wall exhaust hole (28).

2. The muffler device for an indoor ventilator according to claim 1, wherein: the diameter of the wind shield (23) is larger than the diameter of the first wind shield (24).

3. The muffler device for an indoor ventilator according to claim 1, wherein: an auxiliary component (3) is arranged on the clapboard (26); the auxiliary assembly (3) comprises a third windshield sheet (31) and a fourth windshield sheet (32); the hole body (27) is internally provided with a third wind-blocking sheet (31), and the outer side wall of the pipe body (22) is provided with a fourth wind-blocking sheet (32).

4. A muffler assembly for an indoor ventilator as defined in claim 3, wherein: the auxiliary assembly (3) further comprises a sieve (33); the inner side wall of the shell (12) is provided with the filter screen (33).

5. The muffler device for an indoor ventilator according to claim 1, wherein: the inner side wall of the shell (12) is provided with sound absorption cotton (4).

6. The muffler device for an indoor ventilator according to claim 5, wherein: the outer side wall of the shell (12) is provided with the sound absorption cotton (4).

7. The muffler device for an indoor ventilator according to claim 1, wherein: the outer side wall of the shell (12) is provided with a plurality of observation windows (5).