CN216199296U - Noise reduction structure for air outlet of centrifugal fan - Google Patents
Noise reduction structure for air outlet of centrifugal fan Download PDFInfo
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- CN216199296U CN216199296U CN202122597507.8U CN202122597507U CN216199296U CN 216199296 U CN216199296 U CN 216199296U CN 202122597507 U CN202122597507 U CN 202122597507U CN 216199296 U CN216199296 U CN 216199296U
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- noise reduction
- air outlet
- fixedly connected
- centrifugal fan
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Abstract
The utility model relates to the technical field of centrifugal fans, in particular to a noise reduction structure of an air outlet of a centrifugal fan, which comprises a connecting frame and a fan body, wherein a noise reduction assembly is arranged on the fan body and comprises a connecting ring, a rubber pad is fixedly connected inside the connecting ring, a pull rod is fixedly connected to the inner wall of the connecting ring, a spring is sleeved outside the pull rod, and a clamping rod is fixedly connected to one side of the pull rod. This structure of making an uproar falls in centrifugal fan air outlet, the convenience is with go-between cover on the fan body when using, then wind is discharging after making an uproar through the noise reduction box when the air-out, help the noise reduction, and the pulling pull rod is convenient to be dismantled go-between and noise reduction box, it is bigger to have solved current centrifugal fan noise when carrying out the air-out and airing exhaust, it is healthy to influence the staff when using, still can arouse nervous system's harm like this for a long time and can arouse the blindness, be in the noise state for a long time, problem that can insomnia.
Description
Technical Field
The utility model relates to the technical field of centrifugal fans, in particular to a noise reduction structure of an air outlet of a centrifugal fan.
Background
The centrifugal fan is a driven fluid machine, which increases the gas pressure and discharges the gas by means of the 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.
The problem of current centrifugal fan noise ratio when carrying out the air-out and airing exhaust is bigger, influence staff's healthy when using, still can cause nervous system's harm can cause the blindness like this for a long time, neurasthenia causes headache, dizziness, is in the noise state for a long time, can insomnia is solved.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects of the prior art, the utility model provides a noise reduction structure for an air outlet of a centrifugal fan, which has the advantages of noise reduction and the like, and solves the problems that the existing centrifugal fan has higher noise when air is discharged and exhausted, the body health of workers is influenced when the existing centrifugal fan is used, the damage of a nervous system can cause blindness for a long time, and headache and dizziness caused by neurasthenia and insomnia caused by long-term noise.
In order to achieve the purpose of noise reduction, the utility model provides the following technical scheme: the noise reduction structure at the air outlet of the centrifugal fan comprises a connecting frame and a fan body, wherein a noise reduction assembly is arranged on the fan body;
the noise reduction assembly comprises a connecting ring, a rubber pad is fixedly connected inside the connecting ring, a pull rod is fixedly connected to the inner wall of the connecting ring, a spring is sleeved outside the pull rod, and a clamping rod is fixedly connected to one side of the pull rod;
the utility model discloses a noise reduction box, including the box of making an uproar still falls, the inboard of making an uproar falls is provided with sound insulation and inhales the sound cotton, the inside of making an uproar falls the box is provided with the connecting box, the inboard of connecting box is provided with the flow distribution plate, the inboard of making an uproar falls the box and is provided with the bamboo charcoal board, fixedly connected with motor on the box of making an uproar falls, one side fixedly connected with bull stick of motor, fixedly connected with goes out tuber pipe and air-supply line respectively in bull stick both sides.
Further, the connecting ring is internally provided with a mounting hole, and the rubber pad is fixedly connected with the connecting ring through the mounting hole.
Further, the inner wall of the connecting ring is provided with an installation groove, and the pull rod is arranged inside the connecting ring through the installation groove.
Furthermore, a clamping hole is formed in one side, close to the clamping rod, of the fan body, and the clamping hole is matched with the size of the clamping rod.
Further, the connecting box is porous structure, the quantity of flow distribution plate is three, and the inside of reposition of redundant personnel pole has seted up the diffluence hole, and the position of three flow distribution plate diffluence hole does not correspond.
Furthermore, the air outlet pipe is in a horn shape, and the air inlet pipe is a special pipe.
Compared with the prior art, the utility model provides a noise reduction structure for an air outlet of a centrifugal fan, which has the following beneficial effects:
this structure of making an uproar falls in centrifugal fan air outlet, fan body through setting up on the air-supply line, and the go-between, the rubber pad, the pull rod, spring and spring, the convenience is when using with go-between cover on the fan body, then wind is discharged after making an uproar falls through the case of making an uproar that falls when the air-out, help the noise reduction, and the pulling pull rod is convenient to be dismantled the go-between and the case of making an uproar of falling, it is bigger to have solved current centrifugal fan noise when carrying out the air-out and airing exhaust, influence staff's healthy when using, still can arouse nervous system's harm can arouse the blindness for a long time like this, neurasthenia arouses the headache, dizziness, be in the noise state for a long time, can the problem of insomnia.
Drawings
FIG. 1 is a front view of the structure of the present invention;
fig. 2 is a schematic view of the internal structure of the noise reduction box of the present invention.
In the figure: 1 link, 2 fan bodies, 3 go-between, 4 rubber pads, 5 pull rods, 6 springs, 7 kellies, 8 noise reduction boxes, 9 sound insulation and sound absorption cotton, 10 flow distribution plates, 11 bamboo charcoal boards, 12 motors, 13 bull sticks, 14 air outlet pipes, 15 air inlet pipes, 16 connecting boxes.
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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-2, the noise reduction structure of the air outlet of the centrifugal fan comprises a connecting frame 1 and a fan body 2, wherein a noise reduction assembly is arranged on the fan body 2;
the noise reduction assembly comprises a connecting ring 3, a rubber pad 4 is fixedly connected inside the connecting ring 3, a mounting hole is formed inside the connecting ring 3, the rubber pad 4 is fixedly connected with the connecting ring 3 through the mounting hole, the rubber pad 4 is in contact with the outlet of the fan body 2, meanwhile, the size of the fan body is matched, the fan body 2 can be conveniently connected, the inner wall of the connecting ring is fixedly connected with a pull rod 5, the inner wall of the connecting ring 3 is provided with a mounting groove, the pull rod 5 is arranged inside the connecting ring 3 through the mounting groove, the pull rod 5, a spring 6 and a clamping rod 7 can be conveniently clamped with the fan body 2 through the mounting groove when in use, the spring 6 is sleeved outside the pull rod 5, one side of the pull rod 5 is fixedly connected with the clamping rod 7, one side of the fan body 2, which is close to the clamping rod 7, is provided with a clamping hole, the clamping hole is matched with the size of the clamping rod 7, and the connecting ring 3 can be conveniently and conveniently fixed on an outlet of the fan body 12 through clamping connection of the clamping rod 7 and the fan body 2 when in use;
the noise reduction assembly comprises a noise reduction box 8, sound insulation and absorption cotton 9 is arranged on the inner side of the noise reduction box 8, a connecting box 16 is arranged inside the noise reduction box 8, a splitter plate 10 is arranged on the inner side of the connecting box 16, the connecting box 16 is of a porous structure, the number of the splitter plates 10 is three, splitter holes are formed in the splitter rod 10, the positions of the splitter holes of the three splitter plates 10 do not correspond, air can be conveniently discharged through multistage and non-corresponding holes in use, noise with large air volume can be absorbed, a bamboo charcoal plate 11 is arranged on the inner side of the noise reduction box 8, a motor 12 is fixedly connected to the noise reduction box 8, a rotating rod 13 is fixedly connected to one side of the motor 12, the rotating rod 13 is hollow and convenient to exhaust air, an air outlet pipe 14 and an air inlet pipe 15 are fixedly connected to two sides of the rotating rod 13 respectively, the air outlet pipe 14 is horn-shaped, the air inlet pipe 15 is a special pipe, and can be used for sharing noise of air at an air outlet, and the starting motor 12 drives the rotating rod 13 to rotate, so that the directions of the air inlet pipe 15 and the air outlet pipe 14 are conveniently adjusted, and when the rapid air exhaust is needed, the air exhaust speed is controlled.
This embodiment is when using, overlap go-between 3 on fan body 2 when using, and rubber pad 4 and pull rod 5, spring 6 and kelly 7 make go-between 3 link together with fan body 2, then fan body 2's wind is through the sound insulation of noise reduction box 8 inside sound-absorbing cotton 9 inhale the sound and fall the back of making an uproar, through flow distribution plate 10 and connecting box 16, disperse wind, forget outer wind of arranging from the aperture, and the convenient dust in the adsorbed air of bamboo charcoal board 14, the porous structure of bamboo charcoal also conveniently gives sound insulation, utilize simultaneously air-out pipe 14 and the convenient dispersion wind-force of air-supply line 15, wind-force passes air-out pipe 14 and the little air current of air-supply line 15 formation, discharge, improve the effect of airing exhaust.
The beneficial effects of the above embodiment are as follows:
this structure of making an uproar falls in centrifugal fan air outlet, fan body 2 through setting up on link 1, and go-between 3, rubber pad 4, pull rod 5, spring 6 and kelly 7, the convenience overlaps go-between 3 on fan body 2 when using, then wind is fallen the back and is being discharged through noise reduction box 8 when the air-out, help the noise reduction, and pulling pull rod 5 makes things convenient for dismantling go-between 3 and noise reduction box 8, it is bigger to have solved current centrifugal fan noise when air-out is aired exhaust, influence staff's healthy when using, still can arouse nervous system's harm can arouse the blindness like this for a long time, neurasthenia arouses the headache, dizziness, be in the noise state for a long time, can the problem of insomnia.
The electrical components shown herein are electrically connected to a main controller and a power supply, the main controller can be a conventional known device controlled by a computer, and the conventional power connection technology disclosed in the prior art is not described in detail herein.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
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 utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. Centrifugal fan air outlet noise reduction structure, including link (1) and fan body (2), its characterized in that: the fan body (2) is provided with a noise reduction assembly;
the noise reduction assembly comprises a connecting ring (3), a rubber pad (4) is fixedly connected inside the connecting ring (3), a pull rod (5) is fixedly connected to the inner wall of the connecting ring, a spring (6) is sleeved outside the pull rod (5), and a clamping rod (7) is fixedly connected to one side of the pull rod (5);
the utility model discloses a noise reduction assembly, including still noise reduction box (8), the inboard of noise reduction box (8) is provided with sound insulation and inhales sound cotton (9), the inside of noise reduction box (8) is provided with connecting box (16), the inboard of connecting box (6) is provided with flow distribution plate (10), the inboard of noise reduction box (8) is provided with bamboo charcoal board (11), fixedly connected with motor (12) is gone up in noise reduction box (8), one side fixedly connected with bull stick (13) of motor (12), bull stick (13) both sides fixedly connected with goes out tuber pipe (14) and air-supply line (15) respectively.
2. The noise reduction structure for the air outlet of the centrifugal fan as claimed in claim 1, wherein: the rubber pad (4) is fixedly connected with the connecting ring (3) through the mounting hole.
3. The noise reduction structure for the air outlet of the centrifugal fan as claimed in claim 1, wherein: the inner wall of the connecting ring (3) is provided with an installation groove, and the pull rod (5) is arranged inside the connecting ring (3) through the installation groove.
4. The noise reduction structure for the air outlet of the centrifugal fan as claimed in claim 1, wherein: the fan body (2) is provided with a clamping hole at one side close to the clamping rod (7), and the clamping hole is matched with the clamping rod (7) in size.
5. The noise reduction structure for the air outlet of the centrifugal fan as claimed in claim 1, wherein: the connecting box (16) is of a porous structure, the number of the flow distribution plates (10) is three, the flow distribution holes are formed in the flow distribution plates (10), and the positions of the flow distribution holes of the three flow distribution plates (10) do not correspond.
6. The noise reduction structure for the air outlet of the centrifugal fan as claimed in claim 1, wherein: the air outlet pipe (14) is in a horn shape, and the air inlet pipe (15) is in a special pipe shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122597507.8U CN216199296U (en) | 2021-10-27 | 2021-10-27 | Noise reduction structure for air outlet of centrifugal fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122597507.8U CN216199296U (en) | 2021-10-27 | 2021-10-27 | Noise reduction structure for air outlet of centrifugal fan |
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| Publication Number | Publication Date |
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| CN216199296U true CN216199296U (en) | 2022-04-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202122597507.8U Active CN216199296U (en) | 2021-10-27 | 2021-10-27 | Noise reduction structure for air outlet of centrifugal fan |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115539355A (en) * | 2022-11-09 | 2022-12-30 | 广东富宇邦泵阀科技有限公司 | Low-noise air pump |
-
2021
- 2021-10-27 CN CN202122597507.8U patent/CN216199296U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115539355A (en) * | 2022-11-09 | 2022-12-30 | 广东富宇邦泵阀科技有限公司 | Low-noise air pump |
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