CN220667918U - Air guide device of centrifugal fan - Google Patents
Air guide device of centrifugal fan Download PDFInfo
- Publication number
- CN220667918U CN220667918U CN202321939786.4U CN202321939786U CN220667918U CN 220667918 U CN220667918 U CN 220667918U CN 202321939786 U CN202321939786 U CN 202321939786U CN 220667918 U CN220667918 U CN 220667918U
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- centrifugal fan
- air
- air guide
- hood
- fixedly arranged
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- 238000009434 installation Methods 0.000 claims abstract description 19
- 230000007246 mechanism Effects 0.000 claims abstract description 17
- 230000002457 bidirectional effect Effects 0.000 claims description 13
- 230000030279 gene silencing Effects 0.000 claims description 10
- 229920000742 Cotton Polymers 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims 1
- 239000000428 dust Substances 0.000 abstract description 4
- 239000012535 impurity Substances 0.000 abstract description 4
- 238000001914 filtration Methods 0.000 abstract 1
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 238000005034 decoration Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000004887 air purification Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
Abstract
The utility model provides an air guide device of a centrifugal fan, which belongs to the technical field of centrifugal fans and comprises a hood and a fan main body fixedly arranged at the rear part of the inner side wall of the hood, wherein a power line is fixedly arranged on the rear end face of the fan main body, an air guide outlet pipe is fixedly arranged on the left end face of the hood, a support column is fixedly arranged on the lower part of the outer side wall of the hood, a fixed bottom plate is fixedly arranged on the lower end face of the support column, an air guide inlet pipe is fixedly arranged on the front end face of the hood, a filter plate is arranged on the air guide inlet pipe through an installation mechanism, and a flow velocity sensor is fixedly arranged at the bottom of an inner cavity of the hood. According to the utility model, the filter plate can be conveniently and rapidly installed and disassembled through the arrangement of the installation mechanism, so that the filter plate can be timely replaced, the quality of filtering impurities of dust in the air when the centrifugal fan is used is ensured, and the practicability of the whole centrifugal fan in use is improved.
Description
Technical Field
The utility model relates to the field of centrifugal fans, in particular to an air guide device of a centrifugal fan.
Background
In the prior art, with the development of technology, the air quality of the environment in which people live is worse and worse, the root cause of the phenomenon is that waste gas discharged by industry, traffic and the like and vegetation are smaller and smaller, and the indoor environment in which people live is worse due to the influence of external environment on one hand, and on the other hand, the personal safety of people can be endangered with substances such as formaldehyde and the like emitted by various decoration coatings and decorations, wherein formaldehyde and PM2.5 are the most serious. Aiming at the problem of poor indoor environment air quality, most users can continuously ventilate and ventilate indoor air by installing an air conditioner with a fresh air function in the indoor, and a centrifugal fan is a machine for improving the air pressure and discharging air by means of input mechanical energy, and is a driven fluid machine.
The centrifugal fan generally produces the channel of noise and has the self power influence of motor to and the influence that the air-supply line structure of centrifugal fan caused, however present current centrifugal fan wind-guiding structure generally all is fixed knot constructs, and when the workman used centrifugal fan during operation at night, people generally all realize the function of making an uproar falls through reducing centrifugal fan's power, but then centrifugal fan's work efficiency also reduces thereupon, thereby leads to the workman to use centrifugal fan work's efficiency and experience all relatively poor, has certain drawback. Therefore, how to invent an air guiding device of a centrifugal fan to improve the problems becomes a problem to be solved by the person skilled in the art.
Disclosure of Invention
In order to make up for the defects, the utility model provides an air guide device of a centrifugal fan, and aims to solve the problem that the structure of the air guide device of the traditional centrifugal fan cannot be changed.
The utility model is realized in the following way:
the utility model provides an air guide device of a centrifugal fan, which comprises a hood and a fan main body fixedly arranged at the rear part of the inner side wall of the hood, wherein a power line is fixedly arranged on the rear end face of the fan main body, an air guide outlet pipe is fixedly arranged on the left end face of the hood, a support column is fixedly arranged at the lower part of the outer side wall of the hood, a fixed bottom plate is fixedly arranged on the lower end face of the support column, an air guide inlet pipe is fixedly arranged on the front end face of the hood, a filter plate is arranged on the air guide inlet pipe through a mounting mechanism, sealing rings are fixedly arranged on the front end face and the rear end face of the filter plate, a silencing mechanism is arranged on the side wall of the air guide inlet pipe, and the silencing mechanism comprises a central pipe, a corrugated pipe, an adjusting motor, a bidirectional screw rod and an adjusting seat.
Preferably, the inner cavity of the hood is fixedly provided with a guide hood, and the fan main body is arranged in the middle of the guide hood.
By adopting the technical scheme, the functions of absorbing and compressing and discharging the outside air are realized.
Preferably, a flow rate sensor is fixedly arranged at the bottom of the inner cavity of the hood.
By adopting the technical scheme, the flow velocity of the air flow in the hood can be monitored in real time.
Preferably, the installation mechanism comprises an installation groove arranged on the air guide inlet pipe, and an installation plate slidably installed in the installation groove, wherein the upper end surface of the installation plate is fixedly provided with a clamping seat, the side wall of the air guide inlet pipe is fixedly provided with a fixing plate, the inner cavity of the fixing plate is slidably provided with a clamping block, the end part of the clamping block is fixedly provided with an end plate, and the inner side wall of the end plate is fixedly provided with a reset spring.
Through adopting above-mentioned technical scheme, can conveniently and fast install the filter.
Preferably, the mounting plate is fixedly connected with the filter plate, the clamping seat is provided with a clamping groove, one end of the clamping block, which is far away from the fixed plate, can slide into the inner cavity of the clamping groove, and the other end of the return spring is fixedly connected with the end face of the fixed plate.
Preferably, the left corrugated pipe is detachably arranged on the side wall of the air inlet pipe, the right corrugated pipe is fixedly connected with the central pipe, the adjusting motor is fixedly arranged on the upper portion of the side wall of the central pipe, the adjusting seats are fixedly arranged on the upper portion of the side wall of the corrugated pipe and positioned on two sides, the bidirectional screw is fixedly arranged at the output shaft end of the adjusting motor, the bidirectional screw is arranged in the inner cavity of the adjusting seat in a threaded manner, and the inner side wall of the corrugated pipe is provided with silencing cotton.
Through adopting above-mentioned technical scheme, can eliminate centrifugal fan production noise.
The beneficial effects of the utility model are as follows:
through the setting of flow velocity sensor, when flow velocity sensor detects that the air flow velocity that gets into from the wind-guiding intake pipe is less than the setting, then represent the hole on the filter and will be plugged up by impurity such as well dust of air, in order to guarantee that the filter has good effect to air purification, when whole equipment is in daytime during operation, because daytime external environment sound decibel is higher, be in normal power work at this moment, and when the workman used centrifugal fan during operation at night, make two-way lead screw rotate through starting accommodate motor, the two-way lead screw of both sides will inwards shrink simultaneously, the air of follow external suction wind-guiding intake pipe will constantly impact the fold department of bellows, noise that noise on the bellows can be buffered and adsorbed to the air current impact production, the noise influence that the centrifugal fan intake department caused has effectively been reduced, and then greatly reduced the sound decibel of whole centrifugal fan when using at night, avoid too big noise to cause the influence to the neighbor.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the whole structure of a centrifugal fan wind guiding device according to an embodiment of the present utility model;
FIG. 2 is a schematic front view of a part of a structure of an air guiding device of a centrifugal fan according to an embodiment of the present utility model;
FIG. 3 is a schematic front sectional view of an air guiding device of a centrifugal fan according to an embodiment of the present utility model;
fig. 4 is a schematic diagram of a connection structure of an air inlet pipe of an air guiding device of a centrifugal fan according to an embodiment of the present utility model;
FIG. 5 is a schematic diagram of a connection structure between a mounting plate and a filter plate of an air guiding device of a centrifugal fan according to an embodiment of the present utility model;
fig. 6 is a schematic diagram of a silencing mechanism of an air guiding device of a centrifugal fan in an open state according to an embodiment of the present utility model;
fig. 7 is a schematic diagram of a silencing mechanism of an air guiding device of a centrifugal fan in a closed state according to an embodiment of the present utility model.
In the figure: 1. a hood; 11. a guide cover; 12. a flow rate sensor; 2. a fan main body; 3. a power line; 4. a wind-guiding outlet pipe; 5. a support column; 6. a fixed bottom plate; 7. an air guide inlet pipe; 71. a mounting groove; 72. a mounting plate; 73. a clamping seat; 731. a clamping groove; 74. a fixing plate; 75. a clamping block; 76. an end plate; 77. a return spring; 8. a filter plate; 81. a seal ring; 9. a silencing mechanism; 91. a central tube; 92. a bellows; 93. adjusting a motor; 94. a bidirectional screw rod; 95. and (5) adjusting the seat.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model.
Examples
Referring to fig. 1 to 7, an air guiding device of a centrifugal fan comprises a hood 1 and a fan main body 2 fixedly installed at the rear part of the inner side wall of the hood 1, a power line 3 is fixedly installed on the rear end face of the fan main body 2, an air guiding outlet pipe 4 is fixedly installed on the left end face of the hood 1, a support column 5 is fixedly installed on the lower part of the outer side wall of the hood 1, a fixed bottom plate 6 is fixedly installed on the lower end face of the support column 5, an air guiding inlet pipe 7 is fixedly installed on the front end face of the hood 1, a filter plate 8 is installed on the air guiding inlet pipe 7 through an installation mechanism, a silencing mechanism 9 is arranged on the side wall of the air guiding inlet pipe 7, and the silencing mechanism 9 comprises a central pipe 91, a corrugated pipe 92, an adjusting motor 93, a bidirectional screw 94 and an adjusting seat 95.
Referring to fig. 1-3, further; the inner cavity of the hood 1 is fixedly provided with a guide cover 11, the fan main body 2 is arranged in the middle of the guide cover 11, and the bottom of the inner cavity of the hood 1 is fixedly provided with a flow velocity sensor 12.
It should be noted that: when the centrifugal fan works, blades on the fan main body 2 continuously rotate, air entering from the air inlet pipe 7 can be compressed by matching with the air guide cover 11, compressed air is discharged through the air outlet pipe 4, the whole centrifugal fan can finish the air guide function at the moment, when the flow velocity of air entering from the air inlet pipe 7 is detected to be lower than a set value by the flow velocity sensor 12, holes on the filter plate 8 are blocked by impurities such as dust in the air, and in order to ensure that the filter plate 8 has a good air purifying effect, the flow velocity sensor 12 triggers an alarm warning worker to replace the filter plate 8 in time.
Referring to fig. 1-5, further; the installation mechanism comprises an installation groove 71 arranged on the air guide inlet pipe 7 and an installation plate 72 which is slidably arranged in the installation groove 71, a clamping seat 73 is fixedly arranged on the upper end face of the installation plate 72, a fixing plate 74 is fixedly arranged on the side wall of the air guide inlet pipe 7, a clamping block 75 is slidably arranged in the inner cavity of the fixing plate 74, an end plate 76 is fixedly arranged at the end part of the clamping block 75, a return spring 77 is fixedly arranged on the inner side wall of the end plate 76, the installation plate 72 is fixedly connected with the filter plate 8, a clamping groove 731 is arranged on the clamping seat 73, one end of the clamping block 75, far away from the fixing plate 74, can slide into the inner cavity of the clamping groove 731, and the other end of the return spring 77 is fixedly connected with the end face of the fixing plate 74, and sealing rings 81 are fixedly arranged on the front end face and the rear end face of the filter plate 8.
It should be noted that: when the filter plate 8 needs to be replaced, the worker moves away from the fixing plate 74 by breaking the end plates 76 on both sides, and the engaging block 75 fixedly mounted on the fixing plate 74 is withdrawn from the engaging groove 731 on the engaging seat 73, i.e., the worker can detach and replace the filter plate 8 fixedly mounted on the mounting plate 72.
Referring to fig. 6-7, further; the bellows 92 on the left side is detachably arranged on the side wall of the air inlet pipe 7, the bellows 92 on the right side is fixedly connected with the central pipe 91, the adjusting motor 93 is fixedly arranged on the upper portion of the side wall of the central pipe 91, the adjusting seat 95 is fixedly arranged on the upper portion of the side wall of the bellows 92 on the two sides, the bidirectional screw 94 is fixedly arranged at the output shaft end of the adjusting motor 93, the bidirectional screw 94 is arranged in the inner cavity of the adjusting seat 95 in a threaded manner, and silencing cotton is arranged on the inner side wall of the bellows 92.
It should be noted that: when the whole equipment works in daytime, due to the fact that the sound decibels of the external environment in daytime are higher, normal power works at the moment, when a worker uses the centrifugal fan to work at night, the bidirectional screw rods 94 are enabled to rotate by starting the adjusting motor 93, the bidirectional screw rods 94 on two sides simultaneously shrink inwards to form a state as shown in 6, air sucked into the air inlet pipe 7 from the outside continuously impacts the folds of the corrugated pipe 92, noise generated by airflow impact can be buffered and absorbed through the noise-absorbing cotton on the corrugated pipe 92, noise influence caused by the air inlet of the centrifugal fan is effectively reduced, sound decibels of the whole centrifugal fan when the centrifugal fan is used at night are further greatly reduced, and influence of excessive noise on neighbors is avoided.
The working principle of the air guide device of the centrifugal fan is as follows:
when the centrifugal fan works, blades on the fan main body 2 continuously rotate, air entering from the air inlet pipe 7 can be compressed by matching with the air guide cover 11, the compressed air is discharged through the air outlet pipe 4, the whole centrifugal fan can finish the air guide function at the moment, when the flow rate of the air entering from the air inlet pipe 7 is detected to be lower than a set value by the flow rate sensor 12 through the arrangement of the flow rate sensor 12, holes on the filter plate 8 are blocked by impurities such as dust in the air, and in order to ensure that the filter plate 8 has a good air purifying effect, the flow rate sensor 12 triggers an alarm warning worker to replace the filter plate 8 in time;
when the filter plate 8 needs to be replaced, a worker moves away from the fixing plate 74 by breaking off the end plates 76 on both sides, and the clamping blocks 75 fixedly mounted on the fixing plate 74 exit the clamping grooves 731 on the clamping seat 73, i.e. the worker can detach and replace the filter plate 8 fixedly mounted on the mounting plate 72 at this time;
when the whole equipment works in daytime, due to the fact that the sound decibels of the external environment in daytime are higher, normal power works at the moment, when a worker uses the centrifugal fan to work at night, the bidirectional screw rods 94 are enabled to rotate by starting the adjusting motor 93, the bidirectional screw rods 94 on two sides simultaneously shrink inwards to form a state as shown in 6, air sucked into the air inlet pipe 7 from the outside continuously impacts the folds of the corrugated pipe 92, noise generated by airflow impact can be buffered and absorbed through the noise-absorbing cotton on the corrugated pipe 92, noise influence caused by the air inlet of the centrifugal fan is effectively reduced, sound decibels of the whole centrifugal fan when the centrifugal fan is used at night are further greatly reduced, and influence of excessive noise on neighbors is avoided.
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
It should be noted that, specific model specifications of the motor need to be determined by selecting a model according to actual specifications of the device, and a specific model selection calculation method adopts the prior art in the field, so detailed description is omitted.
The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, and various modifications and variations may be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (6)
1. The utility model provides a centrifugal fan's wind-guiding device, includes aircraft bonnet (1) to and fan main part (2) of fixed mounting at aircraft bonnet (1) inside wall rear portion, the rear end face fixed mounting of fan main part (2) has power cord (3), a serial communication port, the left end face fixed mounting of aircraft bonnet (1) has wind-guiding exit tube (4), the lateral wall lower part fixed mounting of aircraft bonnet (1) has support column (5), the lower terminal surface fixed mounting of support column (5) has PMKD (6), the preceding terminal surface fixed mounting of aircraft bonnet (1) has wind-guiding intake pipe (7), install filter (8) through mounting mechanism on wind-guiding intake pipe (7), fixed mounting has sealing washer (81) on the preceding terminal surface of filter (8), be provided with noise reduction mechanism (9) on the lateral wall of wind-guiding intake pipe (7), noise reduction mechanism (9) include center tube (91), bellows (92), accommodate motor (93), two-way lead screw (94) and regulating seat (95).
2. The air guiding device of the centrifugal fan according to claim 1, wherein the air guiding cover (11) is fixedly arranged in the inner cavity of the hood (1), and the fan main body (2) is arranged in the middle of the air guiding cover (11).
3. The air guiding device of the centrifugal fan according to claim 1, wherein a flow rate sensor (12) is fixedly arranged at the bottom of an inner cavity of the hood (1).
4. The air guide device of the centrifugal fan according to claim 1, wherein the installation mechanism comprises an installation groove (71) on an opened air guide inlet pipe (7), and an installation plate (72) which is installed in the installation groove (71) in a sliding mode, a clamping seat (73) is fixedly installed on the upper end face of the installation plate (72), a fixing plate (74) is fixedly installed on the side wall of the air guide inlet pipe (7), a clamping block (75) is installed in an inner cavity of the fixing plate (74) in a sliding mode, an end plate (76) is fixedly installed at the end portion of the clamping block (75), and a reset spring (77) is fixedly installed on the inner side wall of the end plate (76).
5. The air guiding device of a centrifugal fan according to claim 4, wherein the mounting plate (72) is fixedly connected with the filter plate (8), the clamping seat (73) is provided with a clamping groove (731), one end of the clamping block (75) far away from the fixing plate (74) can slide into an inner cavity of the clamping groove (731), and the other end of the return spring (77) is fixedly connected with the end face of the fixing plate (74).
6. The air guide device of a centrifugal fan according to claim 1, wherein the left corrugated pipe (92) is detachably mounted on the side wall of the air guide inlet pipe (7), the right corrugated pipe (92) is fixedly connected with the central pipe (91), the adjusting motor (93) is fixedly mounted on the upper portion of the side wall of the central pipe (91), the adjusting seats (95) are fixedly mounted on the upper portions of the side walls of the two corrugated pipes (92), the bidirectional screw (94) is fixedly mounted at the output shaft end of the adjusting motor (93), the bidirectional screw (94) is mounted in the inner cavity of the adjusting seats (95) in a threaded mode, and silencing cotton is mounted on the inner side wall of the corrugated pipe (92).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321939786.4U CN220667918U (en) | 2023-07-21 | 2023-07-21 | Air guide device of centrifugal fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321939786.4U CN220667918U (en) | 2023-07-21 | 2023-07-21 | Air guide device of centrifugal fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220667918U true CN220667918U (en) | 2024-03-26 |
Family
ID=90340819
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321939786.4U Active CN220667918U (en) | 2023-07-21 | 2023-07-21 | Air guide device of centrifugal fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220667918U (en) |
-
2023
- 2023-07-21 CN CN202321939786.4U patent/CN220667918U/en active Active
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