CN220415739U - Protective structure of centrifugal fan - Google Patents
Protective structure of centrifugal fan Download PDFInfo
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- CN220415739U CN220415739U CN202320844647.7U CN202320844647U CN220415739U CN 220415739 U CN220415739 U CN 220415739U CN 202320844647 U CN202320844647 U CN 202320844647U CN 220415739 U CN220415739 U CN 220415739U
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- Prior art keywords
- centrifugal fan
- internal thread
- protection
- cover
- thread sleeve
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- 230000001681 protective effect Effects 0.000 title claims abstract description 34
- 239000000428 dust Substances 0.000 claims abstract description 22
- 238000007789 sealing Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 claims 1
- 239000002245 particle Substances 0.000 abstract description 13
- 238000001914 filtration Methods 0.000 abstract description 8
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a protection structure of a centrifugal fan, which comprises a centrifugal fan body, wherein an air inlet is formed in the middle of the side wall of the centrifugal fan body, a protection component is fixedly arranged at the position of the air inlet, the protection component comprises an internal thread sleeve cover, the internal thread sleeve cover is fixedly arranged at the position of the air inlet of the centrifugal fan body, a second protection net is fixedly arranged in the middle of the inner cavity of the internal thread sleeve cover, a first protection net is arranged at the position of a port inside the internal thread sleeve cover, a storage cavity is arranged between the first protection net and the second protection net, and a locking structure is arranged on the outer wall of the internal thread sleeve cover. According to the utility model, the internal thread sleeve cover is fixedly arranged at the air inlet of the centrifugal fan, and the first protective net and the second protective net are arranged at intervals in the internal thread sleeve cover, so that double-layer filtration of air is realized, meanwhile, the storage space of dust particles can be reserved, the air inlet efficiency is prevented from being influenced, and the first protective net can be conveniently detached by matching with the locking structure, so that the service life of the centrifugal fan is prolonged.
Description
Technical Field
The utility model relates to the technical field of centrifugal fans, in particular to a protection structure of a centrifugal fan.
Background
The traditional centrifugal fan generally comprises a shell, fan blades and a motor, the fan blades in the shell are driven by the motor to rotate at a high speed, so that external air enters from an air inlet on the shell and is discharged from an air outlet, and the power transmission of the air is achieved.
When the existing centrifugal fan is used, dust particles are mixed in the outside air and enter the centrifugal fan together, so that the fan blades are easy to damage, the service life of the centrifugal fan is influenced, and therefore, the protection structure of the centrifugal fan is provided to solve the problems.
Disclosure of Invention
The utility model aims to provide a protection structure of a centrifugal fan, so as to solve the problems in the background art.
In order to achieve the above purpose, the present utility model provides the following technical solutions: a protective structure for a centrifugal fan, comprising:
the centrifugal fan comprises a centrifugal fan body, wherein an air inlet is formed in the middle of the side wall of the centrifugal fan body;
the utility model discloses a centrifugal fan, including centrifugal fan body, air intake position is fixed to be provided with the protection subassembly, the protection subassembly includes the internal thread cover, the internal thread cover is fixed to be set up in the air intake position of centrifugal fan body, the fixed second protection network that is provided with in middle part of internal thread cover inner chamber, the inside port position of internal thread cover is provided with first protection network, be provided with the storage chamber between first protection network and the second protection network, the outer wall of internal thread cover is provided with the locking structure that is used for first protection network location.
Preferably, the positioning ring is fixedly arranged in the internal thread sleeve cover and positioned at one side of the first protective net, and the sealing gasket is arranged between the outer wall of the first protective net and the inner wall of the internal thread sleeve cover.
Preferably, the locking structure comprises a plurality of stoppers, the stoppers are arranged on the end face of the internal thread sleeve cover at intervals in an annular array, the end parts of the stoppers are rotatably inserted and provided with T-shaped pin shafts, and one ends of the T-shaped pin shafts are fixedly connected with the end face of the internal thread sleeve cover.
Preferably, an external thread pipe head is fixedly connected to the position of the air inlet of the centrifugal fan body, and the end part of the inner wall of the internal thread sleeve cover is in threaded connection with the external thread pipe head through set internal threads.
Preferably, the end part of the external thread pipe head is movably inserted and provided with a dust cover, the dust cover is composed of a baffle ring and a filter net bag, the filter net bag is fixedly connected to one side of the baffle ring, the size of the baffle ring is the same as that of the external thread pipe head, and the aperture of the filter net bag is smaller than that of the second protective net and smaller than that of the first protective net.
Preferably, the air outlet of centrifugal fan body department fixedly is provided with the linking bridge, the bottom fixedly connected with mounting panel of centrifugal fan body, the corner of mounting panel and linking bridge all is provided with the installation through-hole.
The utility model has the technical effects and advantages that:
(1) According to the utility model, the internal thread sleeve cover is fixedly arranged at the air inlet of the centrifugal fan, and the first protective net and the second protective net are arranged at intervals in the internal thread sleeve cover, so that double-layer filtration of air is realized, meanwhile, the storage space of dust particles can be reserved, the air inlet efficiency is prevented from being influenced, and the first protective net can be conveniently detached by being matched with the locking structure arranged between the internal thread sleeve cover and the first protective net, so that dust particles accumulated in the internal thread sleeve cover can be conveniently cleaned, and the service life of the centrifugal fan is prolonged;
(2) According to the utility model, the external thread tube head arranged at the air inlet of the centrifugal fan body is in threaded connection with the internal thread sleeve cover, so that the internal thread sleeve cover is convenient to disassemble and assemble, the convenience of cleaning and maintenance is improved, and meanwhile, the air entering the centrifugal fan can be further filtered by matching with the dust cover arranged in the external thread tube head in a penetrating way, so that the protection effect on the fan blades inside the centrifugal fan is enhanced.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present utility model.
Fig. 2 is a schematic view of a partial enlarged structure at a of fig. 1 according to the present utility model.
Fig. 3 is a schematic view of the internal structure of the internal thread bushing cover of the present utility model.
Fig. 4 is a schematic perspective view of a centrifugal fan body according to the present utility model.
Fig. 5 is a schematic perspective view of a dust cap according to the present utility model.
In the figure: 1. a centrifugal fan body; 11. an air inlet; 12. an external thread tube head; 13. a dust cover; 131. a positioning ring; 132. a filter string bag; 14. a mounting plate; 15. mounting through holes; 16. a connection frame; 2. a protective assembly; 21. an internal thread sleeve cover; 22. a first protection net; 23. a second protection net; 24. a positioning ring; 25. a sealing gasket; 26. a stop block; 27. t-shaped pin shaft.
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.
The utility model provides a protection structure of a centrifugal fan as shown in figures 1-5, which comprises a centrifugal fan body 1, wherein an air inlet 11 is formed in the middle of the side wall of the centrifugal fan body 1, a connecting frame 16 is fixedly arranged at the air outlet of the centrifugal fan body 1, the bottom end of the centrifugal fan body 1 is fixedly connected with a mounting plate 14, mounting holes 15 are formed in the corners of the mounting plate 14 and the connecting frame 16, the mounting plate 14 can facilitate the mounting of the centrifugal fan body 1, and meanwhile, the connecting frame 16 at the air outlet is convenient to connect and fix with an external air supply pipeline;
the protection assembly 2 is fixedly arranged at the position of the air inlet 11, the protection assembly 2 comprises the internal thread sleeve cover 21, the arrangement of the internal thread sleeve cover 21 mainly plays a bearing role, the installation of the first protection net 22 and the second protection net 23 is facilitated, the internal thread sleeve cover 21 is fixedly arranged at the position of the air inlet 11 of the centrifugal fan body 1, the second protection net 23 is fixedly arranged in the middle of the inner cavity of the internal thread sleeve cover 21, the first protection net 22 is arranged at the position of the port inside the internal thread sleeve cover 21, a storage cavity is arranged between the first protection net 22 and the second protection net 23, the first protection net 22 and the second protection net 23 are arranged at intervals, the double filtration of the entering air is achieved, the protection effect on the fan blades inside the centrifugal fan body 1 is improved, meanwhile, the storage cavity formed between the two can temporarily store dust particles, the dust particles are prevented from being fully accumulated on the second protection net 23, and the using effect is influenced, and the locking structure for positioning the first protection net 22 is arranged on the outer wall of the internal thread sleeve cover 21;
the positioning ring 24 is fixedly arranged in the inner part of the internal thread sleeve cover 21 and positioned at one side of the first protective net 22, and the positioning ring 24 is arranged to position the mounting position of the first protective net 22 in the internal thread sleeve cover 21, so that the convenience of mounting the first protective net 22 is improved, the sealing gasket 25 is arranged between the outer wall of the first protective net 22 and the inner wall of the internal thread sleeve cover 21, the gap between the first protective net 22 and the internal thread sleeve cover 21 is sealed, and the tightness of mounting the first protective net 22 is improved;
the locking structure comprises a plurality of stop blocks 26, the stop blocks 26 are arranged on the end face of the internal thread sleeve cover 21 at intervals in an annular array, the end parts of the stop blocks 26 are rotatably inserted and provided with T-shaped pin shafts 27, one ends of the T-shaped pin shafts 27 are fixedly connected with the end face of the internal thread sleeve cover 21, the stop blocks 26 are in interference fit between the T-shaped pin shafts 27, the stop blocks 26 can keep the current position fixed after rotating to a certain position, the stable limiting effect on the first protective net 22 is achieved, meanwhile, the limit on the first protective net 22 is conveniently and rapidly released through rotating the stop blocks 26, the first protective net 22 is conveniently and rapidly disassembled and cleaned, and meanwhile dust particles in a storage cavity are conveniently cleaned;
the air intake 11 position department fixedly connected with external screw thread tube head 12 of centrifugal fan body 1, the internal screw thread that sets up is through internal screw thread and the external screw thread tube head 12 threaded connection of internal screw thread cover 21 inner wall tip, the setting of external screw thread tube head 12 can cooperate with internal screw thread cover 21, make internal screw thread cover 21 accessible rotatory mode fast with external screw thread tube head 12 dismouting, conveniently clear up it, the tip activity interlude of external screw thread tube head 12 is provided with dust cover 13, dust cover 13 comprises baffle ring 131 and filter string bag 132, filter string bag 132 fixed connection is in one side of baffle ring 131, the size of baffle ring 131 is the same with external screw thread tube head 12, through the dust cover 13 stopper that comprises filter string bag 132 and baffle ring 131 is inside the external screw thread tube head 12, can realize the tertiary filtration to the entering air, thereby strengthen the guard action to centrifugal fan body 1 in, the aperture of filter string bag 132 is less than the aperture of second protection network 23 and is less than the aperture of first protection network 22, reduce between the aperture that utilizes, thereby reach the realization tertiary filtration to entering centrifugal fan body 1.
The working principle of the utility model is as follows:
when the centrifugal fan body 1 works, outside air enters the centrifugal fan body 1 from the inside of the internal thread sleeve cover 21 through the air inlet 11, impurities such as dust particles with larger particle diameters are isolated from the outside when passing through the first protective net 22, preliminary filtration of the entering air is achieved, and when passing through the second protective net 23, the primarily filtered air is subjected to secondary filtration on dust particles with smaller diameters in the air because the mesh diameter of the second protective net 23 is smaller than that of the first protective net 22, meanwhile, the internal thread sleeve cover 21 is positioned in a space between the first protective net 22 and the second protective net 23, temporary storage of filtered dust particles can be used, dust particles are prevented from being accumulated on the second protective net 23, the using effect is prevented from being influenced, finally, when the secondarily filtered air enters the external thread pocket 12, the filter net 132 in the dust cover 13 is penetrated, the effect of tertiary filtration is achieved, the harm of the impurity particles contained in the air to the centrifugal fan blade 1 is eliminated, and meanwhile, the quality of gas transmission is improved.
Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.
Claims (6)
1. A protective structure for a centrifugal fan, comprising:
the centrifugal fan comprises a centrifugal fan body (1), wherein an air inlet (11) is formed in the middle of the side wall of the centrifugal fan body (1);
the method is characterized in that: the utility model discloses a centrifugal fan, including centrifugal fan body (1), including air intake (11), air intake (11) fixed protection subassembly (2) that is provided with in position, protection subassembly (2) include internal thread cover (21), internal thread cover (21) are fixed to be set up in air intake (11) position of centrifugal fan body (1), the fixed second protection network (23) that is provided with in middle part of internal chamber of internal thread cover (21), the inside port position of internal thread cover (21) is provided with first protection network (22), be provided with between first protection network (22) and second protection network (23) and store the chamber, the outer wall of internal thread cover (21) is provided with the locking structure who is used for first protection network (22) location.
2. The protection structure of a centrifugal fan according to claim 1, wherein a positioning ring (24) is fixedly arranged in the internal thread sleeve cover (21) and positioned at one side of the first protection net (22), and a sealing gasket (25) is arranged between the outer wall of the first protection net (22) and the inner wall of the internal thread sleeve cover (21).
3. The protection structure of a centrifugal fan according to claim 1, wherein the locking structure comprises a plurality of stoppers (26), the stoppers (26) are arranged on the end face of the internal thread sleeve cover (21) at intervals in a ring-shaped array, a T-shaped pin shaft (27) is rotatably inserted into the end portion of the stopper (26), and one end of the T-shaped pin shaft (27) is fixedly connected with the end face of the internal thread sleeve cover (21).
4. The protection structure of a centrifugal fan according to claim 1, wherein an external thread pipe head (12) is fixedly connected to the position of an air inlet (11) of the centrifugal fan body (1), and the end part of the inner wall of the internal thread sleeve cover (21) is in threaded connection with the external thread pipe head (12) through an internal thread.
5. The protection structure of a centrifugal fan according to claim 4, wherein a dust cover (13) is movably inserted at the end part of the external thread pipe head (12), the dust cover (13) is composed of a baffle ring (131) and a filter net bag (132), the filter net bag (132) is fixedly connected to one side of the baffle ring (131), the baffle ring (131) is the same as the external thread pipe head (12), and the aperture of the filter net bag (132) is smaller than that of the second protective net (23) and smaller than that of the first protective net (22).
6. The protection structure of a centrifugal fan according to claim 1, wherein a connecting frame (16) is fixedly arranged at an air outlet of the centrifugal fan body (1), a mounting plate (14) is fixedly connected to the bottom end of the centrifugal fan body (1), and mounting through holes (15) are formed in corners of the mounting plate (14) and the connecting frame (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320844647.7U CN220415739U (en) | 2023-04-17 | 2023-04-17 | Protective structure of centrifugal fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320844647.7U CN220415739U (en) | 2023-04-17 | 2023-04-17 | Protective structure of centrifugal fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220415739U true CN220415739U (en) | 2024-01-30 |
Family
ID=89655474
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320844647.7U Active CN220415739U (en) | 2023-04-17 | 2023-04-17 | Protective structure of centrifugal fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220415739U (en) |
-
2023
- 2023-04-17 CN CN202320844647.7U patent/CN220415739U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A protective structure for a centrifugal fan Granted publication date: 20240130 Pledgee: Bank of China Limited Dongtai Branch Pledgor: Jiangsu Panli Environmental Protection Technology Co.,Ltd. Registration number: Y2024980027862 |