CN223359439U - A centrifugal fan - Google Patents
A centrifugal fanInfo
- Publication number
- CN223359439U CN223359439U CN202422309398.9U CN202422309398U CN223359439U CN 223359439 U CN223359439 U CN 223359439U CN 202422309398 U CN202422309398 U CN 202422309398U CN 223359439 U CN223359439 U CN 223359439U
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- wall
- limiting
- centrifugal fan
- hole
- frame
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Abstract
本实用新型公开了一种离心风机，包括离心风机壳体、通孔和排风管，所述离心风机壳体的一侧开设有通孔，所述离心风机壳体正面贯穿安装有排风管。本实用新型通过电机带动输出杆和第二传动轮旋转能够带动传动带和第一传动轮旋转，通轴承的设置，有利于避免传动杆与连接孔之间的产生摩擦，而导致的叶轮转速减缓的问题，通过通孔、限制环、限制架和防尘滤网的设置，能够避免空气中的灰尘进入到离心风机壳体的内部粘黏在叶轮上的情况出现，通过同时移动第一限制块，使第一限制块脱离第一限制孔的内壁，这时便能够将防护架从通孔内拆下，进而方便对防尘滤网进行清理或者更换，避免因防尘滤网堵塞，而导致的进风量降低的问题。
The utility model discloses a centrifugal fan, comprising a centrifugal fan housing, a through hole and an exhaust duct, wherein a through hole is provided on one side of the centrifugal fan housing, and an exhaust duct is installed through the front of the centrifugal fan housing. The utility model can drive the transmission belt and the first transmission wheel to rotate by driving the output rod and the second transmission wheel to rotate by a motor, and the provision of a through bearing is conducive to avoiding the problem of friction between the transmission rod and the connecting hole, which causes the impeller speed to slow down. The provision of the through hole, the limiting ring, the limiting frame and the dust filter can prevent dust in the air from entering the interior of the centrifugal fan housing and sticking to the impeller. By simultaneously moving the first limiting block, the first limiting block is separated from the inner wall of the first limiting hole, and the protective frame can be removed from the through hole, thereby facilitating the cleaning or replacement of the dust filter, thereby avoiding the problem of reduced air intake due to clogging of the dust filter.
Description
Technical Field
The utility model relates to the technical field of centrifugal fan equipment, in particular to a centrifugal fan.
Background
Centrifugal fans are driven fluid machines which increase the pressure of gas and discharge the gas by means of input mechanical energy, and are widely used for ventilation, dust removal and cooling of factories, mines, tunnels, cooling towers, vehicles, ships and buildings, ventilation and air induction of boilers and industrial kilns, cooling and ventilation in air-conditioning equipment and household electrical appliances, and the like.
Patent document CN208534844U discloses a centrifugal fan, which comprises a shell, a motor, an impeller, an air inlet, an air outlet and a bracket, wherein the air inlet is cylindrical, the air inlet is provided with a wind power adjusting device, the wind power adjusting device comprises a groove, the groove is arranged on the inner side of the air inlet, a fixed cross rod is arranged below the groove, each adjusting blade corresponds to one groove and is in a fan shape, the outer edge of each adjusting blade is inserted into the groove, the adjusting blade is divided into an upper blade, a middle blade and a lower blade, the outer edge part of the upper blade inserted into the groove is provided with 1-2 bolt through holes, and the lower blade is fixed on the fixed cross rod. The utility model aims to provide a centrifugal fan, and the wind power adjusting device arranged at the air inlet of the centrifugal fan is simple in structure and convenient to operate, and the air holes are formed in the adjusting blades, so that the blades cannot be damaged due to excessive pressure caused by air flow through the air holes.
The centrifugal fan of above-mentioned publication mainly considers how to set up at its air intake department wind-force adjusting device, its simple structure, convenient operation, and be equipped with the ventilation hole on the regulation blade, the air current can not cause too big pressure to cause the destruction for the blade through the ventilation hole, current centrifugal fan in the use, needs to guarantee its wind speed and dustproof effect to prevent to lead to impeller rotational speed to become slow or have dust to stop up the air intake because of frictional force too big, and the technical problem that the wind speed that leads to reduces.
In view of this, it is necessary to develop a centrifugal fan, and further, to improve the practicality of the centrifugal fan in use.
Disclosure of utility model
The utility model aims to provide a centrifugal fan, which aims to solve the technical problem of wind speed reduction caused by the fact that the rotating speed of an impeller is reduced or an air inlet is blocked by dust due to too large friction force.
In order to achieve the above purpose, the utility model provides a centrifugal fan, which comprises a centrifugal fan shell, a through hole and an exhaust pipe, wherein one side of the centrifugal fan shell is provided with the through hole, and the front surface of the centrifugal fan shell is provided with the exhaust pipe in a penetrating way;
A connecting hole is formed in the middle of the other side of the centrifugal fan shell, a bearing is arranged on the inner wall of the connecting hole, a transmission rod is arranged on the inner wall of the bearing, and an impeller is arranged at one end of the outer wall of the transmission rod;
The other end of the transmission rod is provided with a first transmission wheel, the outer wall of the first transmission wheel is provided with a transmission belt, the other end of the inner wall of the transmission belt is provided with a second transmission wheel, one end of the second transmission wheel is provided with an output rod, and one end of the output rod is provided with a motor.
Preferably, the front end of the inner wall of the through hole is provided with a limiting ring, the middle part of the inner wall of the through hole is provided with a limiting frame, and the inner wall of the limiting frame is provided with a dustproof filter screen.
Preferably, the top of exhaust pipe has been seted up logical groove, and the support frame is installed to the inner wall of logical groove, and limit groove is installed to the bottom of support frame outer wall, and limit groove sets up in the interior bottom wall of exhaust pipe, and the active carbon filter screen is installed to the inner wall of support frame, and a set of handle is installed at the top of support frame.
Preferably, the supporting table is installed at the bottom of the centrifugal fan shell, the front end of the top of the supporting table is installed at the bottom of the exhaust pipe, the tail end of the top of the supporting table is installed at the bottom of the motor, a plurality of idler wheels are installed at the bottom of the supporting table, and the handle is installed at the top of the centrifugal fan shell.
Preferably, a protective frame is arranged at the tail end of the inner wall of the through hole, and a protective net is arranged on the inner wall of the protective frame.
Preferably, a group of first limiting grooves are formed in one side of the protection frame, the first springs are mounted at the tail ends of the inner walls of the first limiting grooves, the first limiting blocks are mounted at the output ends of the first springs, the first limiting holes are mounted at the front ends of the outer walls of the first limiting blocks, and the first limiting holes are formed in the tail ends of the inner walls of the through holes.
Preferably, a group of second limiting grooves are formed in the outer wall of the supporting frame, second springs are installed on the inner walls of the second limiting grooves, second limiting blocks are installed at one ends of the second springs, second limiting holes are installed in the front ends of the outer walls of the second limiting blocks, and the second limiting holes are formed in the inner walls of the through grooves.
Compared with the prior art, the utility model has the following beneficial effects:
1. according to the utility model, the output rod and the second driving wheel are driven by the motor to rotate, the driving belt and the first driving wheel can be driven to rotate, the through bearing is arranged, the problem of slow rotation speed of the impeller caused by friction between the driving rod and the connecting hole is solved, the situation that dust in air enters the centrifugal fan shell and is adhered to the impeller can be avoided through the arrangement of the through hole, the first limiting block is moved at the same time, the first limiting block is separated from the inner wall of the first limiting hole, at this time, the protecting frame can be detached from the through hole, the dust-proof filter screen is cleaned or replaced conveniently, the problem of reduced air inlet quantity caused by blockage of the dust-proof filter screen is solved, and the air speed and dust-proof effect of the centrifugal fan can be ensured in the use process of the centrifugal fan.
2. According to the utility model, the arrangement of the second limiting groove, the second spring, the second limiting block, the second limiting hole and the limiting groove is beneficial to improving the stability of the support frame in the exhaust pipe, the arrangement of the active carbon filter screen is beneficial to playing the effect of reducing peculiar smell, and the pull handle is convenient to pull the support frame out of the exhaust pipe, so that the active carbon filter screen is convenient to clean, and the centrifugal fan is convenient to drive to move through the arrangement of the supporting table, the roller and the handle.
Drawings
FIG. 1 is a perspective view of the overall structure of the present utility model;
FIG. 2 is a schematic view of a centrifugal fan housing according to the present utility model;
FIG. 3 is a schematic view of a first spring structure according to the present utility model;
FIG. 4 is a schematic view of a via structure according to the present utility model;
FIG. 5 is a schematic view of the exhaust duct according to the present utility model.
The centrifugal fan comprises a centrifugal fan shell, a through hole, a 3-exhaust pipe, a 101-connecting hole, a 102-bearing, a 103-transmission rod, a 104-impeller, a 105-first transmission wheel, a 106-transmission belt, a 107-second transmission wheel, a 108-output rod, a 109-motor, a 201-restriction ring, a 202-restriction frame, a 203-dustproof filter screen, a 301-through groove, a 302-support frame, a 303-groove, a 304-activated carbon filter screen, a 305-handle, a 401-support table, a 402-roller, a 403-handle, a 501-protection frame, a 502-protection net, a 601-first restriction groove, a 602-first spring, a 603-first restriction block, a 604-first restriction hole, a 701-second restriction groove, a 702-second spring, a 703-second restriction block, a 704-second restriction hole.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be configured and operated in the specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present utility model, unless explicitly stated or limited otherwise, the terms "mounted," "configured to," "connected," and the like are to be construed broadly as, for example, "connected" may be fixedly connected, may be detachably connected, or integrally connected, may be mechanically connected or electrically connected, may be directly connected or indirectly connected through an intermediate medium, and may be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
Referring to fig. 1, in an embodiment of the present utility model, a centrifugal fan includes a centrifugal fan housing 1, a through hole 2 and an exhaust pipe 3, wherein the through hole 2 is formed on one side of the centrifugal fan housing 1, and the exhaust pipe 3 is installed on the front surface of the centrifugal fan housing 1 in a penetrating manner;
Referring to fig. 1, 2, 3 and 4, a connecting hole 101 is formed in the middle of the other side of a centrifugal fan housing 1, a bearing 102 is mounted on the inner wall of the connecting hole 101, a transmission rod 103 is mounted on the inner wall of the bearing 102, an impeller 104 is mounted on one end of the outer wall of the transmission rod 103, a first transmission wheel 105 is mounted on the other end of the transmission rod 103, a transmission belt 106 is mounted on the outer wall of the first transmission wheel 105, a second transmission wheel 107 is mounted on the other end of the inner wall of the transmission belt 106, an output rod 108 is mounted on one end of the second transmission wheel 107, a motor 109 is mounted on one end of the output rod 108, a limiting ring 201 is mounted on the front end of the inner wall of the through hole 2, a limiting frame 202 is mounted in the middle of the inner wall of the through hole 2, a dust-proof filter screen 203 is mounted on the inner wall of the limiting frame 202, a protecting frame 501 is mounted on the tail end of the inner wall of the through hole 2, a protecting net 502 is mounted on the inner wall of the protecting frame 501, a group of first limiting grooves 601 are formed on one side of the protecting frame 501, the tail end of the inner wall of the first limiting groove 601 is provided with a first spring 602, the output end of the first spring 602 is provided with a first limiting block 603, the front end of the outer wall of the first limiting block 603 is provided with a first limiting hole 604, the first limiting hole 604 is arranged at the tail end of the inner wall of the through hole 2, the inner wall of the limiting frame 202 is provided with a dustproof filter screen 203, the output rod 108 and the second driving wheel 107 are driven by a motor 109 to rotate so as to drive the driving belt 106 and the first driving wheel 105 to rotate, the arrangement of the through bearing 102 is beneficial to avoiding the problem of friction between the driving rod 103 and the connecting hole 101 to lead to the reduction of the rotation speed of the impeller 104, the arrangement of the through hole 2, the limiting ring 201, the limiting frame 202 and the dustproof filter screen 203 can avoid the situation that dust in the air enters the inside of the centrifugal fan shell 1 to be stuck on the impeller 104 by simultaneously moving the first limiting block 603, the first limiting block 603 is separated from the inner wall of the first limiting hole 604, at this time, the protecting frame 501 can be detached from the through hole 2, so that the dustproof filter screen 203 can be cleaned or replaced conveniently, the problem of air inlet reduction caused by blockage of the dustproof filter screen 203 is avoided, and the air speed and the dustproof effect of the centrifugal fan can be ensured in the using process of the centrifugal fan;
Referring to fig. 1, fig. 2 and fig. 5, the through groove 301 is provided at the top of the exhaust duct 3, the support frame 302 is installed at the inner wall of the through groove 301, the limiting groove 303 is installed at the bottom of the outer wall of the support frame 302, and the limiting groove 303 is provided at the inner bottom wall of the exhaust duct 3, the activated carbon filter screen 304 is installed at the inner wall of the support frame 302, a group of handles 305 are installed at the top of the support frame 302, the supporting table 401 is installed at the bottom of the exhaust duct 3, and the tail end of the top of the supporting table 401 is installed at the bottom of the motor 109, a plurality of rollers 402 are installed at the bottom of the supporting table 401, the handle 403 is installed at the top of the centrifugal fan housing 1, a group of second limiting grooves 701 are provided at the outer wall of the support frame 302, the second springs 702 are installed at the inner wall of the second limiting grooves 701, the second limiting holes 704 are installed at the front ends of the outer walls of the second limiting blocks 703, and the second limiting holes 704 are provided at the inner wall of the through the second limiting groove 301, the bottom of the through the second limiting groove 401, the rollers 402 are installed at the bottom of the support frame 109, the bottom of the support frame 401 is installed at the bottom of the support frame 109, and the bottom of the support frame is convenient to move the support frame 401, the filter screen is conveniently cleaned by the second limiting grooves 403, the filter screen is conveniently arranged at the inner wall of the support frame 304, the filter screen is conveniently set up, the filter screen is conveniently to be cleaned by the filter screen is moved by the second limiting grooves, and the filter screen is set up by the filter screen 304, and the filter screen is conveniently has a high-free from the inside the filter screen, and has a high filter screen is convenient to be set up and has a convenient to clean and has easy to be easy to clean.
The working principle drives output rod 108 and second drive wheel 107 through motor 109 and can drive belt 106 and first drive wheel 105 rotation, lead to the setting of bearing 102, be favorable to avoiding the production friction between transfer lever 103 and the connecting hole 101, and the problem that the impeller 104 rotational speed that leads to slows down, through the setting of through-hole 2, limit ring 201, limit frame 202 and dustproof filter screen 203, can avoid the dust in the air to enter into the inside of centrifugal fan casing 1 and glue the condition of gluing on impeller 104 to appear, through moving first limit piece 603 simultaneously, make first limit piece 603 break away from the inner wall of first limit hole 604, at this moment just can tear protection frame 501 from the through-hole 2 down, and then conveniently clear up or change dustproof filter screen 203, avoid blockking up because of dustproof filter screen 203, and the problem that the amount of wind that leads to reduces, then can guarantee its wind speed and dustproof effect in centrifugal fan's use, through second limit groove 701, second spring 702, second limit piece 704 and limit groove 303 set up, be favorable to improving the condition that support frame 302 installs in pipe 3 and filter screen 304, through moving the setting up the filter screen 304, and carrying out convenient to pull out the setting up the handle 304, and carrying out the convenient to pull out the setting up and pull out the filter screen 304, the handle 3 is convenient, and the filter screen is convenient to move the support frame 304, and the handle is moved from the filter screen 304, and is convenient to be moved, and the support frame is moved and the 3, and is convenient to be moved, and the filter frame is moved and the filter screen is moved and the 3 is moved and the filter screen is moved and the filter 3.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (4)
1. The centrifugal fan comprises a centrifugal fan shell (1), a through hole (2) and an exhaust pipe (3), and is characterized in that the through hole (2) is formed in one side of the centrifugal fan shell (1), and the exhaust pipe (3) is arranged on the front side of the centrifugal fan shell (1) in a penetrating manner;
A connecting hole (101) is formed in the middle of the other side of the centrifugal fan shell (1), a bearing (102) is arranged on the inner wall of the connecting hole (101), a transmission rod (103) is arranged on the inner wall of the bearing (102), and an impeller (104) is arranged at one end of the outer wall of the transmission rod (103);
A first driving wheel (105) is arranged at the other end of the driving rod (103), a driving belt (106) is arranged on the outer wall of the first driving wheel (105), a second driving wheel (107) is arranged at the other end of the inner wall of the driving belt (106), an output rod (108) is arranged at one end of the second driving wheel (107), and a motor (109) is arranged at one end of the output rod (108);
A limiting ring (201) is arranged at the front end of the inner wall of the through hole (2), a limiting frame (202) is arranged in the middle of the inner wall of the through hole (2), and a dustproof filter screen (203) is arranged on the inner wall of the limiting frame (202);
The tail end of the inner wall of the through hole (2) is provided with a protection frame (501), and the inner wall of the protection frame (501) is provided with a protection net (502);
A group of first limiting grooves (601) are formed in one side of the protection frame (501), first springs (602) are arranged at the tail ends of the inner walls of the first limiting grooves (601), first limiting blocks (603) are arranged at the output ends of the first springs (602), first limiting holes (604) are formed in the front ends of the outer walls of the first limiting blocks (603), and the first limiting holes (604) are formed in the tail ends of the inner walls of the through holes (2).
2. The centrifugal fan according to claim 1, wherein the top of the exhaust pipe (3) is provided with a through groove (301), the inner wall of the through groove (301) is provided with a supporting frame (302), the bottom of the outer wall of the supporting frame (302) is provided with a limiting groove (303), the limiting groove (303) is arranged on the inner bottom wall of the exhaust pipe (3), the inner wall of the supporting frame (302) is provided with an activated carbon filter screen (304), and the top of the supporting frame (302) is provided with a group of handles (305).
3. The centrifugal fan according to claim 1, wherein a supporting table (401) is installed at the bottom of the centrifugal fan shell (1), the front end of the top of the supporting table (401) is installed at the bottom of the exhaust pipe (3), the tail end of the top of the supporting table (401) is installed at the bottom of the motor (109), a plurality of rollers (402) are installed at the bottom of the supporting table (401), and a handle (403) is installed at the top of the centrifugal fan shell (1).
4. The centrifugal fan according to claim 2, wherein a group of second limiting grooves (701) are formed in the outer wall of the supporting frame (302), second springs (702) are arranged on the inner walls of the second limiting grooves (701), second limiting blocks (703) are arranged at one ends of the second springs (702), second limiting holes (704) are formed in the front ends of the outer walls of the second limiting blocks (703), and the second limiting holes (704) are formed in the inner walls of the through grooves (301).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202422309398.9U CN223359439U (en) | 2024-09-23 | 2024-09-23 | A centrifugal fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202422309398.9U CN223359439U (en) | 2024-09-23 | 2024-09-23 | A centrifugal fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN223359439U true CN223359439U (en) | 2025-09-19 |
Family
ID=97032836
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202422309398.9U Active CN223359439U (en) | 2024-09-23 | 2024-09-23 | A centrifugal fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN223359439U (en) |
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2024
- 2024-09-23 CN CN202422309398.9U patent/CN223359439U/en active Active
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