CN215719667U - Box type exhaust fan - Google Patents
Box type exhaust fan Download PDFInfo
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- CN215719667U CN215719667U CN202122005228.8U CN202122005228U CN215719667U CN 215719667 U CN215719667 U CN 215719667U CN 202122005228 U CN202122005228 U CN 202122005228U CN 215719667 U CN215719667 U CN 215719667U
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- exhaust fan
- shell
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- main box
- box body
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- 230000030279 gene silencing Effects 0.000 claims abstract description 30
- 238000010521 absorption reaction Methods 0.000 claims abstract description 19
- 238000013016 damping Methods 0.000 claims description 10
- 229920000742 Cotton Polymers 0.000 claims description 7
- 230000035939 shock Effects 0.000 claims description 5
- 239000002131 composite material Substances 0.000 claims description 4
- 239000011152 fibreglass Substances 0.000 claims description 4
- 239000000835 fiber Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 1
- 230000009467 reduction Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000006872 improvement Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000007779 soft material Substances 0.000 description 1
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Abstract
The utility model discloses a box type exhaust fan, which comprises a main box body, wherein the main box body is arranged on a base, and universal wheels are arranged at four corners of the bottom of the base; the fan body is arranged in the main box body and comprises a shell and an impeller, the impeller is fixed in the shell and is connected with a motor through a rotating shaft, one side of the shell is provided with an air inlet, the other side of the shell is provided with an air outlet, and the air inlet and the air outlet extend out of the main box body; the air inlet is provided with a silencing ring, the air outlet is connected with a silencing pipe, and the inner wall of the shell is provided with a first sound absorption layer. The utility model realizes multiple sound absorption and noise reduction by combining the silencing structures such as the silencing ring, the first sound absorption layer, the silencing pipe and the like, greatly reduces noise and reduces noise pollution.
Description
Technical Field
The utility model relates to the technical field of fans, in particular to a box type exhaust fan.
Background
In many cases of an electric power system, for example, a main transformer chamber of a transformer substation, an exhaust fan is generally provided in the main transformer chamber to blow air against the main transformer, thereby achieving air flow in the main transformer, in order to achieve air flow in the main transformer chamber, and reduce the air temperature in the main transformer chamber and noise at an exhaust port of the main transformer chamber.
Although the exhaust fan can realize the air flow in the main transformer chamber and reduce the air temperature in the main transformer chamber, the mechanical vibration noise and the air flow noise generated in the operation process of the fan cannot be eliminated, and the mechanical vibration noise and the air flow noise can influence the health and normal life of nearby residents.
Therefore, a new box type exhaust fan is needed to solve the noise problem of the prior art fan.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a box type exhaust fan, which solves the problems in the prior art, greatly reduces noise and reduces noise pollution.
In order to achieve the purpose, the utility model provides the following scheme: the utility model provides a box type exhaust fan which comprises a main box body, wherein the main box body is arranged on a base, and universal wheels are arranged at four corners of the bottom of the base; the fan body is arranged in the main box body and comprises a shell and an impeller, the impeller is fixed in the shell and is connected with a motor through a rotating shaft, one side of the shell is provided with an air inlet, the other side of the shell is provided with an air outlet, and the air inlet and the air outlet extend out of the main box body; the air inlet is provided with a silencing ring, the air outlet is connected with a silencing pipe, and the inner wall of the shell is provided with a first sound absorption layer.
Preferably, a second sound absorption layer is arranged on the inner wall of the main box body.
Preferably, the first sound absorbing layer and the second sound absorbing layer are made of sound absorbing cotton, sponge or fiber blanket, and a plurality of sound absorbing holes are uniformly formed in the first sound absorbing layer and the second sound absorbing layer.
Preferably, the silencing ring comprises a ring-shaped body, and sound-absorbing cotton is attached to the inner wall of the ring-shaped body.
Preferably, the silencing pipe is a glass fiber reinforced plastic composite pipe.
Preferably, a filter screen is arranged at the position of the air outlet close to the silencing pipe.
Preferably, the number of the impellers is two, and the two impellers are arranged on the rotating shaft in a front-back side-by-side mode.
Preferably, a shock pad is arranged on the base.
Preferably, the universal wheel includes the mounting bracket, install the gyro wheel through the shaft on the mounting bracket, the top of mounting bracket through the mounting bracket pivot rotate install in the bottom of base, the mounting bracket with still be provided with damping spring between the bottom of base, damping spring cover is located in the mounting bracket pivot.
Preferably, a push handle is mounted at the top of the front end of the main box body.
Compared with the prior art, the utility model has the following technical effects:
the air inlet of the fan body is provided with the silencing ring, the silencing ring is connected with the air inlet through threads, and the air outlet is connected with the silencing pipe through threads, so that the fan body is convenient to disassemble, assemble and replace; and a first sound absorption layer is arranged on the inner wall of the shell. The utility model realizes multiple sound absorption and noise reduction by combining the silencing structures such as the silencing ring, the first sound absorption layer, the silencing pipe and the like, greatly reduces noise and reduces noise pollution.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings 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 invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic structural view of a blower body according to the present invention;
FIG. 2 is a schematic structural diagram of a box-type exhaust fan according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a box-type exhaust fan according to a second embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a universal wheel according to a second embodiment of the present invention;
the vibration-damping device comprises a shell 1, an impeller 2, a rotating shaft 3, a first sound absorption layer 4, a silencing ring 5, an air outlet 6, a silencing pipe 7, a filter screen 8, a motor 9, a main box body 10, a second sound absorption layer 11, a base 12, a push handle 13, a universal wheel 14, a 141-mounting frame, a 142-mounting frame rotating shaft, a 143-wheel shaft, a 144-roller and a 145-damping spring.
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.
The utility model aims to provide a box type exhaust fan, which solves the problems in the prior art, greatly reduces noise and reduces noise pollution.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
Example one
As shown in fig. 1-2, the present embodiment provides a box type exhaust fan, which includes a main box 10, wherein the main box 10 is installed on a base 12, universal wheels 14 are installed at four corners of the bottom of the base 12, and the base 12 is driven to move by the universal wheels 14, so that the whole box type exhaust fan can move; a fan body is arranged in the main box body 10 and comprises a shell 1 and an impeller 2, the impeller 2 is fixed in the shell 1, the impeller 2 is connected with a motor 9 through a rotating shaft 3, one side of the shell 1 is provided with an air inlet, and the other side of the shell 1 is provided with an air outlet 6; the air inlet is provided with a silencing ring 5, the silencing ring 5 is connected with the air inlet through threads, and the air outlet 6 is connected with a silencing pipe 7 through threads, so that the air inlet is convenient to disassemble, assemble and replace; the inner wall of the shell 1 is provided with a first sound absorption layer 4, and specifically, the first sound absorption layer 4 is adhered to the inner wall of the shell 1 through an adhesive.
In this embodiment, multiple sound absorption and noise reduction are realized through a plurality of structures such as the silencing ring 5, the first sound absorption layer 4 and the silencing pipe 7, so that the noise is greatly reduced, and the noise pollution is reduced. Moreover, whole in this embodiment fan body and motor 9 set up in the main tank body 10, the air intake with air outlet 6 stretches out main tank body 10 corresponds on the main tank body 10 and is provided with the opening so that air intake and air outlet 6 stretch out, can effectively protect motor 9 and fan body through main tank body 10.
In this embodiment, the second sound absorbing layer 11 is disposed on the inner wall of the main box 10, so as to further improve the noise reduction effect. Specifically, the first sound absorbing layer 4 and the second sound absorbing layer 11 are made of sound absorbing cotton, sponge or fiber blanket, and a plurality of sound absorbing holes are uniformly formed in the first sound absorbing layer 4 and the second sound absorbing layer 11; in the course of the work, constantly adsorb the noise through hemispherical amortization pore pair, reach better sound effect of inhaling.
Specifically, the silencing ring 5 comprises an annular body, sound-absorbing cotton is attached to the inner wall of the annular body, and noise at the air inlet is reduced through the sound-absorbing cotton; the silencing pipe 7 adopts the existing glass fiber reinforced plastic composite pipe, the glass fiber reinforced plastic composite pipe has good sound absorption effect, the noise is quickly attenuated when transmitted along the air pipe, and the crosstalk phenomenon is reduced. The air outlet 6 is close to the position of the silencing pipe 7 is provided with a filter screen 8, so that air outlet can be filtered, and dust in the air outlet can be effectively filtered.
In this embodiment, the impeller 2 may further include two impellers 2, the two impellers 2 are installed on the rotating shaft 3 in parallel in the front-back direction, and the double impellers 2 are provided to increase the contact area between the fluid and the blades and reduce aerodynamic noise.
Example two
The embodiment is an improvement on the basis of the first embodiment, and the improvement is as follows:
as shown in fig. 3-4, the main box 10 is mounted on a base 12, and a shock pad is disposed on the base 12, and the shock pad may be made of soft materials such as rubber or sponge, so as to reduce noise generated by contact between the main box 10 and the base 12 while performing shock absorption protection on the main box 10; the universal wheels 14 are installed at four corners of the bottom of the base 12, and the base 12 is driven to move through the universal wheels 14, so that the whole box type exhaust fan can be moved.
In this embodiment, the universal wheel 14 includes a mounting frame 141, a roller 144 is mounted on the mounting frame 141 through a wheel axle 143, a top portion of the mounting frame 141 is rotatably mounted at a bottom portion of the base 12 through a mounting frame rotating shaft 142, a damping spring 145 is further disposed between the mounting frame 141 and the bottom portion of the base 12, and the damping spring 145 is sleeved on the mounting frame rotating shaft 142. In the embodiment, the damping spring 145 is arranged on the universal wheel 14, so that the damping is effectively realized in the moving process, and the damage to the whole device is reduced.
In this embodiment, the mounting frame 141 is further provided with a brake device, and the brake device is used for locking the roller 144 to realize braking of the universal wheel 14; the brake device can adopt a brake pad, or select other brake structures according to the working requirement.
In this embodiment, the top of the front end of the main box 10 is provided with a push handle 13, which facilitates the movement of the whole box type exhaust fan; the pushing handle 13 can also be installed on the top of the front end of the base 12, and the pushing handle 13 can also be provided with an anti-slip sleeve, so that the handle is convenient to hold.
The principle and the implementation mode of the utility model are explained by applying a specific example, and the description of the embodiment is only used for helping to understand the method and the core idea of the utility model; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the utility model.
Claims (10)
1. A box exhaust fan which is characterized in that: the universal wheel type water heater comprises a main box body, wherein the main box body is arranged on a base, and universal wheels are arranged at four corners of the bottom of the base; the fan body is arranged in the main box body and comprises a shell and an impeller, the impeller is fixed in the shell and is connected with a motor through a rotating shaft, one side of the shell is provided with an air inlet, the other side of the shell is provided with an air outlet, and the air inlet and the air outlet extend out of the main box body; the air inlet is provided with a silencing ring, the air outlet is connected with a silencing pipe, and the inner wall of the shell is provided with a first sound absorption layer.
2. The ducted exhaust fan in accordance with claim 1, further comprising: and a second sound absorption layer is arranged on the inner wall of the main box body.
3. The ducted exhaust fan in accordance with claim 2, wherein: first sound absorbing layer with the second sound absorbing layer adopts and inhales sound cotton, sponge or fibre blanket and makes, first sound absorbing layer with the second is inhaled the interior a plurality of sound holes of evenly being provided with of sound layer.
4. The ducted exhaust fan in accordance with claim 1, further comprising: the sound attenuation ring comprises an annular body, and sound absorption cotton is attached to the inner wall of the annular body.
5. The ducted exhaust fan in accordance with claim 1, further comprising: the silencing pipe is a glass fiber reinforced plastic composite pipe.
6. The ducted exhaust fan in accordance with claim 5, wherein: and a filter screen is arranged at the position of the air outlet, which is close to the silencing pipe.
7. The ducted exhaust fan in accordance with claim 1, further comprising: the impeller is provided with two, two install side by side around the impeller in the pivot.
8. The ducted exhaust fan in accordance with claim 1, further comprising: and the base is provided with a shock pad.
9. The ducted exhaust fan in accordance with claim 8, further comprising: the universal wheel comprises a mounting frame, the idler wheel is mounted on the mounting frame through a wheel shaft, the top of the mounting frame is rotatably mounted at the bottom of the base through a mounting frame rotating shaft, a damping spring is further arranged between the mounting frame and the bottom of the base, and the damping spring is sleeved on the mounting frame rotating shaft.
10. The ducted exhaust fan in accordance with claim 1, further comprising: and a push handle is arranged at the top of the front end of the main box body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122005228.8U CN215719667U (en) | 2021-08-18 | 2021-08-18 | Box type exhaust fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122005228.8U CN215719667U (en) | 2021-08-18 | 2021-08-18 | Box type exhaust fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215719667U true CN215719667U (en) | 2022-02-01 |
Family
ID=80006732
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122005228.8U Active CN215719667U (en) | 2021-08-18 | 2021-08-18 | Box type exhaust fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215719667U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023020266A1 (en) * | 2021-08-18 | 2023-02-23 | 浙江双阳风机有限公司 | Box-type exhaust fan |
-
2021
- 2021-08-18 CN CN202122005228.8U patent/CN215719667U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023020266A1 (en) * | 2021-08-18 | 2023-02-23 | 浙江双阳风机有限公司 | Box-type exhaust fan |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: No. 16 Kunlun Road, Shangpu Industrial Zone, Shaoxing City, Zhejiang Province, China 312300 Patentee after: Zhejiang Shuangyang Fan Co.,Ltd. Country or region after: China Address before: No. 16 Kunlun Road, Shangpu Industrial Zone, Shangyu District, Shaoxing City, Zhejiang Province Patentee before: ZHEJIANG SHUANGYANG FAN Co.,Ltd. Country or region before: China |