CN213598261U - Low-noise axial flow fan - Google Patents
Low-noise axial flow fan Download PDFInfo
- Publication number
- CN213598261U CN213598261U CN202022599403.6U CN202022599403U CN213598261U CN 213598261 U CN213598261 U CN 213598261U CN 202022599403 U CN202022599403 U CN 202022599403U CN 213598261 U CN213598261 U CN 213598261U
- Authority
- CN
- China
- Prior art keywords
- cylinder part
- positioning
- straight
- thick bamboo
- bamboo portion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model relates to an axial fan's field, in particular to low noise axial fan, it includes the casing, the casing includes straight section of thick bamboo portion and expands section of thick bamboo portion, be provided with the mount on the straight section of thick bamboo portion, be connected with driving motor on the mount, be connected with the wind wheel in driving motor's the pivot, straight section of thick bamboo portion passes through locating component with expanding section of thick bamboo portion and be connected, locating component is including connecting the locating lever on expanding section of thick bamboo portion and connecting the locating lever in the positioning bolt on straight section of thick bamboo portion, the constant head tank has been seted up on the straight section of thick bamboo portion. The straight cylinder part is not required to be replaced together when the expanded cylinder part is replaced.
Description
Technical Field
The application relates to the field of axial flow fans, in particular to a low-noise axial flow fan.
Background
When the impeller rotates, air axially enters the impeller from the air inlet, is pushed by blades on the impeller to increase the energy of the air, and then flows into the guide vanes. The guide vane changes the deflection airflow into axial flow, and simultaneously introduces the gas into the diffuser pipe, further converts the kinetic energy of the gas into pressure energy, and finally introduces the pressure energy into a fan of a working pipeline.
The chinese utility model patent with the publication number of CN211573822U discloses a low-noise axial flow fan, which comprises a housing, a fixing frame mounted on the housing, a driving motor mounted on the fixing frame, and a wind wheel mounted on a rotating shaft of the driving motor, wherein an annular silencing cavity is arranged on the inner wall of an inlet section of the housing, and a rubber vibration membrane is mounted at the cavity opening of the silencing cavity; the mount is including installing the solid fixed ring at the air intake place end of casing and being used for installing driving motor's linking arm, the linking arm sets up to the slope of the casing other end along casing axial lead direction, the wind wheel is located the inboard of rubber vibration membrane.
With respect to the related art in the above, the inventors consider that: the expansion cylinder part and the straight cylinder part are integrally arranged, when the expansion cylinder part is damaged and needs to be replaced, the straight cylinder part needs to be replaced together, and material waste is caused to a certain extent.
SUMMERY OF THE UTILITY MODEL
Need not to change straight section of thick bamboo portion together when expanding section of thick bamboo portion in order to change, this application provides a low noise axial fan.
The application provides a low noise axial fan adopts following technical scheme:
the utility model provides a low noise axial fan, includes the casing, the casing includes straight section of thick bamboo portion and expands section of thick bamboo portion, be provided with the mount on the straight section of thick bamboo portion, be connected with driving motor on the mount, be connected with the wind wheel in driving motor's the pivot, straight section of thick bamboo portion passes through locating component with the section of thick bamboo portion of expanding and is connected, locating component is including connecting the locating lever on expanding section of thick bamboo portion and connecting the locating bolt on straight section of thick bamboo portion with the locating lever, the constant head tank has been seted up on the straight section of thick.
By adopting the technical scheme, the straight cylinder part and the expanded cylinder part are arranged in a split manner, the straight cylinder part and the expanded cylinder part are detachably connected, and when the straight cylinder part and the expanded cylinder part are required to be connected, the positioning rod on the expanded cylinder part is firstly in inserted fit with the positioning groove on the straight cylinder part, and then the positioning bolt is screwed down to fix the positioning rod on the straight cylinder part; when the expanding cylinder part needs to be detached from the straight cylinder part, the positioning bolt is screwed out, and then the positioning rod is taken out from the straight cylinder part. The straight cylinder part does not need to be replaced together when the expanded cylinder part is replaced, so that the operation is convenient and simple.
Optionally, a first rubber pad is connected to the groove bottom of the positioning groove, and a second rubber pad is connected to one side of the straight cylinder portion, which is in contact with the expanding cylinder portion.
Through adopting above-mentioned technical scheme, the first rubber pad and the locating lever contact of constant head tank bottom, and first rubber pad plays certain cushioning effect. The second rubber pad and the end of the enlarged cylinder part connected with the straight cylinder part are contacted, the second rubber pad has better elasticity, plays a certain role in buffering, and enhances the sealing property between the enlarged cylinder part and the straight cylinder part.
Optionally, a threaded hole in threaded fit with the positioning bolt is formed in the straight barrel portion, an insertion groove in insertion fit with the positioning bolt is formed in the positioning rod, a side wall, away from the expansion barrel portion, of the insertion groove is inclined, the distance from the side wall, away from the expansion barrel portion, of the insertion groove to the bottom of the insertion groove is gradually increased in the direction from the expansion barrel portion to the straight barrel portion, and the positioning bolt firstly abuts against the side wall, away from the expansion barrel portion, of the insertion groove and finally abuts against the bottom of the insertion groove in the screwing process.
Through adopting above-mentioned technical scheme, at the in-process of screwing up positioning bolt and screw hole, the positioning bolt afterbody stretches into in the inserting groove, and the positioning bolt afterbody is earlier contradicted with one side lateral wall that the inserting groove was kept away from and is expanded section of thick bamboo portion, continue to screw up positioning bolt again, the positioning bolt afterbody continues the downstream, one side lateral wall that makes the inserting groove keep away from and expand section of thick bamboo portion receives the component that is close to first rubber pad direction towards, make the locating lever to being close to first rubber pad direction and remove, further with first rubber pad, the compression of second rubber pad, until the positioning bolt afterbody supports tightly with the inserting groove tank bottom can. One side of the inserting groove, which is far away from the expansion cylinder part, is inclined, so that the first rubber pad and the second rubber pad are further compressed by the positioning bolt in the screwing process, and the connection strength of the expansion cylinder part and the straight cylinder part is enhanced to a certain degree. When the expansion cylinder part needs to be disassembled, the positioning bolt is screwed out, and in the screwing-out process of the positioning bolt, the positioning rod is pushed out for a certain distance in the direction away from the bottom of the positioning groove due to certain elasticity of the first rubber pad and the second rubber pad, so that an operator can conveniently take the positioning rod out of the positioning groove.
Optionally, the inner diameter of the side of the enlarged cylinder part connected with the straight cylinder part is the same as the inner diameter of the straight cylinder part, and the enlarged cylinder part and the straight cylinder part are coaxially arranged.
By adopting the technical scheme, the sealing performance of the expanding cylinder part and the straight cylinder part is enhanced to a certain degree.
Optionally, a sliding groove is formed in the straight barrel portion, a sliding rod matched with the sliding groove in a sliding mode is connected to the expansion barrel portion, a roller is connected to the sliding rod in a rotating mode, the roller is connected to the side wall of the sliding groove in a rolling mode, and a clamping block matched with the sliding groove in a clamping mode is arranged at one end, close to the expansion barrel portion, of the sliding rod.
Through adopting above-mentioned technical scheme, the cooperation that slides of slide bar and spout, the slide bar plays certain guide effect with the spout to gyro wheel and spout roll connection on the slide bar have the effect of reducing friction power. The clamping block on the sliding rod is in clamping fit with the sliding groove, so that the connection strength between the sliding rod and the straight cylinder part is further enhanced.
Optionally, be provided with on the expand section of thick bamboo portion inside wall and inhale the sound device, expand and seted up the sound-absorbing chamber on the section of thick bamboo portion inside wall, inhale the sound device including the connecting plate that seals the sound-absorbing chamber and fill the porous abatvoix in the sound-absorbing chamber, a plurality of connecting holes have been seted up on the connecting plate.
Through adopting above-mentioned technical scheme, pack and inhale the porous abatvoix of sound intracavity and have better sound effect of inhaling, have the effect that reduces the noise to a certain extent.
Optionally, the sound-absorbing cavity is connected with a plurality of partition plates for dividing the sound-absorbing cavity into a plurality of cavities, and the porous sound-absorbing plate is in inserted fit with the cavities; the expansion cylinder part is provided with a connecting assembly used for positioning the sound-absorbing plate in the cavity.
Through adopting above-mentioned technical scheme, set up the baffle in the sound-absorbing chamber, make porous abatvoix place in the chamber more conveniently, make convenient operation simple to fix a position the abatvoix in the chamber through coupling assembling.
Optionally, the connecting assembly comprises a baffle plate for limiting the sound-absorbing plate in the cavity and a limiting bolt for positioning the baffle plate on the expansion cylinder part.
Through adopting above-mentioned technical scheme, the baffle is fixed a position the abatvoix in the cavity, prevents that the abatvoix from deviating from the cavity to the baffle is fixed a position on expanding section of thick bamboo portion through spacing bolt, makes the installation dismantle comparatively convenient, the baffle and expand and have better joint strength between the section of thick bamboo portion.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the straight cylinder part and the expanded cylinder part are arranged in a split manner, and the straight cylinder part and the expanded cylinder part are detachably connected, so that the straight cylinder part does not need to be replaced together when the expanded cylinder part is replaced, and the operation is convenient and simple;
2. one side of the inserting groove, which is far away from the expanded cylinder part, is inclined, so that the positioning bolt further compresses the first rubber pad and the second rubber pad in the screwing process, and the connecting strength of the expanded cylinder part and the straight cylinder part is enhanced to a certain degree; when the expanded cylinder part needs to be disassembled, the positioning bolt is screwed out, and in the process of screwing out the positioning bolt, the positioning rod is pushed out for a certain distance in the direction away from the bottom of the positioning groove due to certain elasticity of the first rubber pad and the second rubber pad, so that an operator can conveniently take out the positioning rod from the positioning groove;
3. the porous sound-absorbing board filled and absorbed in the sound cavity has a good sound-absorbing effect and has the function of reducing noise to a certain extent.
Drawings
FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present application;
FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1, showing the sound absorbing device and the connecting assembly;
FIG. 3 is a mounting bracket, drive motor and wind wheel;
FIG. 4 is an enlarged view of portion B of FIG. 2 showing the positioning assembly;
FIG. 5 is an exploded view of the straight barrel portion and the enlarged barrel portion, showing the slide bar, the roller and the slide groove;
FIG. 6 is a schematic view of a slide bar construction;
FIG. 7 is an exploded view of the enlarged barrel portion, attachment plate, porous sound absorbing panel and baffle.
Description of reference numerals: 1. a straight tube portion; 11. a fixed mount; 12. a drive motor; 13. a wind wheel; 14. positioning a groove; 15. a first rubber pad; 16. a second rubber pad; 17. a threaded hole; 18. a chute; 2. a tube expanding part; 21. a slide bar; 22. a roller; 23. a clamping block; 24. a sound absorbing chamber; 25. a partition plate; 3. a positioning assembly; 31. positioning a rod; 311. inserting grooves; 32. positioning the bolt; 4. a sound absorbing device; 41. a connecting plate; 42. a porous sound-absorbing panel; 5. a connecting assembly; 51. a baffle plate; 52. and a limiting bolt.
Detailed Description
The present application is described in further detail below with reference to figures 1-7.
The embodiment of the application discloses low noise axial fan. Referring to fig. 1, the low noise axial flow fan includes a housing including a straight tube portion 1 and a tube expansion portion 2.
Referring to fig. 2 and 3, a fixing frame 11 is fixedly connected to an end portion of one end of the straight cylinder portion 1, a driving motor 12 is fixedly connected to the fixing frame 11, a wind wheel 13 is fixedly connected to a rotating shaft of the driving motor 12, and the wind wheel 13 is located in the straight cylinder portion 1. One end of the enlarged cylinder part 2 with a smaller diameter is connected with the straight cylinder part 1, the inner diameter of the side of the enlarged cylinder part 2 connected with the straight cylinder part 1 is the same as the inner diameter of the straight cylinder part 1, and the enlarged cylinder part 2 and the straight cylinder part 1 are coaxially arranged.
The end surface of one end of the straight cylinder part 1 far away from the fixed frame 11 is provided with a positioning groove 14, and the positioning groove 14 is arranged along the axial direction of the straight cylinder part 1. The straight cylinder portion 1 and the enlarged cylinder portion 2 are connected by a positioning unit 3, and the positioning unit 3 includes a positioning rod 31 and a positioning bolt 32. The end face of the smaller diameter end of the expanding cylinder part 2 is fixedly connected with a positioning rod 31, the positioning rod 31 and the positioning groove 14 are both arranged in a cuboid shape, and the positioning rod 31 is in inserted fit with the positioning groove 14.
Referring to fig. 2 and 4, a first rubber pad 15 is fixedly connected to the bottom of the positioning groove 14, and a second rubber pad 16 is fixedly connected to the side of the straight cylinder portion 1 contacting the enlarged cylinder portion 2.
Threaded hole 17 has been seted up on the straight section of thick bamboo portion 1 lateral wall, and inserting groove 311 has been seted up on the locating lever 31 lateral wall, and positioning bolt 32 and threaded hole 17 screw-thread fit, and positioning bolt 32 afterbody and inserting groove 311 cooperation of pegging graft.
The side wall of the insertion groove 311 far from the enlarged cylinder part 2 is inclined, and the distance from the side wall of the insertion groove 311 far from the enlarged cylinder part 2 to the bottom of the insertion groove 311 gradually increases in the direction from the enlarged cylinder part 2 to the straight cylinder part 1. In the process of screwing the positioning bolt 32 and the threaded hole 17, the tail of the positioning bolt 32 extends into the insertion groove 311, the tail of the positioning bolt 32 is firstly abutted against the side wall of the insertion groove 311 far away from the expansion cylinder part 2, then the positioning bolt 32 is continuously screwed, the tail of the positioning bolt 32 continuously moves downwards, the side wall of the insertion groove 311 far away from the expansion cylinder part 2 is subjected to component force towards the direction close to the first rubber pad 15, and the positioning rod 31 compresses the first rubber pad 15 and the second rubber pad 16 until the tail of the positioning bolt 32 is abutted against the bottom of the insertion groove 311.
Referring to fig. 5, a sliding groove 18 is formed in an end face of one end of the straight cylinder portion 1 connected with the enlarged cylinder portion 2, the sliding groove 18 is axially arranged along the straight cylinder portion 1, a sliding rod 21 is fixedly connected to the end face of one end of the enlarged cylinder portion 2 connected with the straight cylinder portion 1, the sliding rod 21 and the sliding groove 18 are both rectangular in shape, and the sliding rod 21 and the sliding groove 18 are in sliding fit. The slide bar 21 is rotatably connected with a roller 22, the roller 22 is connected to the side wall of the slide groove 18 in a rolling manner, one end of the slide bar 21 close to the expansion cylinder part 2 is fixedly connected with a clamping block 23, and the clamping block 23 is in clamping fit with the slide groove 18.
Referring to fig. 2 and 7, a sound absorption cavity 24 is formed on the inner side wall of the enlarged cylinder part 2, a plurality of partition plates 25 are fixedly connected in the sound absorption cavity 24, the partition plates 25 extend along the length direction of the enlarged cylinder part 2, and the partition plates 25 divide the sound absorption cavity 24 into a plurality of chambers. The sound absorption cavity 24 is provided with a sound absorption device 4, and the sound absorption device 4 comprises a connecting plate 41 and a plurality of porous sound absorption plates 42. The porous sound-absorbing plate 42 is one of sound-absorbing materials such as sound-absorbing cotton, mineral wool, polyurethane foam, and the like. The multi-hole sound-absorbing boards 42 are respectively inserted into the cavities, the connecting board 41 is connected to the opening of the sound-absorbing cavity 24, the connecting board 41 is positioned in the sound-absorbing cavity 24, the connecting board 41 is arranged in parallel with the outer side wall of the expansion cylinder part 2, and a plurality of connecting holes are formed in the connecting board 41.
The end of the enlarged cylinder part 2 far away from the positioning rod 31 is provided with a connecting assembly 5, the connecting assembly 5 comprises a baffle plate 51 and a limiting bolt 52, the baffle plate 51 is fixedly connected to the end of the enlarged cylinder part 2 far away from the positioning rod 31, and the baffle plate 51 is in contact with the end of the porous sound-absorbing plate 42. The limiting bolt 52 penetrates through the outer side wall of the expansion cylinder part 2 and is in threaded connection with the baffle plate 51.
The implementation principle of the low-noise axial flow fan in the embodiment of the application is as follows:
when the straight cylinder part 1 and the expanding cylinder part 2 need to be connected, the positioning rod 31 on the expanding cylinder part 2 is firstly inserted and matched with the positioning groove 14 on the straight cylinder part 1, and then the positioning bolt 32 is screwed down to fix the positioning rod 31 on the straight cylinder part 1.
When the enlarged cylinder part 2 needs to be detached from the straight cylinder part 1, the positioning bolt 32 is screwed out, and in the process, the positioning rod 31 is pushed out for a certain distance in the direction away from the bottom of the positioning groove 14 due to certain elasticity of the first rubber pad 15 and the second rubber pad 16, and then the positioning rod 31 is taken out from the straight cylinder part 1.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. The utility model provides a low noise axial fan, includes the casing, the casing includes straight section of thick bamboo portion (1) and expands section of thick bamboo portion (2), be provided with mount (11) on straight section of thick bamboo portion (1), be connected with driving motor (12) on mount (11), be connected with wind wheel (13), its characterized in that in the pivot of driving motor (12): the straight barrel part (1) is connected with the expansion barrel part (2) through the positioning assembly (3), the positioning assembly (3) comprises a positioning rod (31) connected to the expansion barrel part (2) and a positioning bolt (32) connecting the positioning rod (31) to the straight barrel part (1), a positioning groove (14) is formed in the straight barrel part (1), and the positioning rod (31) is in splicing fit with the positioning groove (14).
2. The low-noise axial flow fan according to claim 1, wherein: the bottom of the positioning groove (14) is connected with a first rubber pad (15), and one side of the straight cylinder part (1) contacting with the expansion cylinder part (2) is connected with a second rubber pad (16).
3. A low noise axial flow fan according to claim 2, wherein: the positioning bolt is characterized in that a threaded hole (17) in threaded fit with the positioning bolt (32) is formed in the straight barrel part (1), an insertion groove (311) in insertion fit with the positioning bolt (32) is formed in the positioning rod (31), the side wall, away from the expanded barrel part (2), of the insertion groove (311) is inclined, the distance from the side wall, away from the expanded barrel part (2), of the insertion groove (311) to the bottom of the insertion groove (311) is gradually increased in the direction from the expanded barrel part (2) to the straight barrel part (1), the positioning bolt (32) is firstly abutted against the side wall, away from the expanded barrel part (2), of the insertion groove (311) in the screwing process, and is finally abutted against the bottom of the insertion groove (311).
4. The low-noise axial flow fan according to claim 1, wherein: the inner diameter of one side of the expanded cylinder part (2) connected with the straight cylinder part (1) is the same as that of the straight cylinder part (1), and the expanded cylinder part (2) and the straight cylinder part (1) are coaxially arranged.
5. The low-noise axial flow fan according to claim 4, wherein: the straight section of thick bamboo portion (1) is last to have seted up spout (18), expand on the section of thick bamboo portion (2) and be connected with slide bar (21) with spout (18) complex that slides, it is connected with gyro wheel (22) to rotate on slide bar (21), gyro wheel (22) roll connection is on spout (18) lateral wall, slide bar (21) are close to the one end of expanding section of thick bamboo portion (2) and are provided with and slide groove (18) joint complex fixture block (23).
6. The low-noise axial flow fan according to claim 1, wherein: expand and be provided with on section of thick bamboo portion (2) inside wall and inhale sound device (4), expand and seted up on section of thick bamboo portion (2) inside wall and inhale sound chamber (24), inhale sound device (4) including connecting plate (41) and the porous abatvoix (42) of packing in sound chamber (24) that seal sound chamber (24), a plurality of connecting holes have been seted up on connecting plate (41).
7. The low-noise axial flow fan according to claim 6, wherein: a plurality of partition plates (25) which divide the sound absorption cavity (24) into a plurality of cavities are connected in the sound absorption cavity (24), and the porous sound absorption plate (42) is in inserted fit with the cavities; the expansion cylinder part (2) is provided with a connecting assembly (5) for positioning the sound-absorbing plate in the cavity.
8. The low-noise axial flow fan according to claim 7, wherein: the connecting assembly (5) comprises a baffle plate (51) for limiting the sound-absorbing plate in the cavity and a limiting bolt (52) for positioning the baffle plate (51) on the expansion cylinder part (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022599403.6U CN213598261U (en) | 2020-11-11 | 2020-11-11 | Low-noise axial flow fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022599403.6U CN213598261U (en) | 2020-11-11 | 2020-11-11 | Low-noise axial flow fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213598261U true CN213598261U (en) | 2021-07-02 |
Family
ID=76595611
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022599403.6U Active CN213598261U (en) | 2020-11-11 | 2020-11-11 | Low-noise axial flow fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213598261U (en) |
-
2020
- 2020-11-11 CN CN202022599403.6U patent/CN213598261U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111075734B (en) | Low noise axial fan | |
| CN213598261U (en) | Low-noise axial flow fan | |
| CN109406225B (en) | Vacuum sampling pump for collecting smoke and particulate matters in atmosphere | |
| CN213628176U (en) | Low-noise axial flow fan | |
| CN201003493Y (en) | Wind screen type silencer | |
| CN212536070U (en) | Novel swing rotor compressor with low-pressure cavity in shell | |
| CN213711378U (en) | Low-noise axial flow fan | |
| CN215719643U (en) | High-efficient low noise mixed flow fan | |
| CN221547324U (en) | Axial flow fan with noise reduction device | |
| CN208348080U (en) | A kind of muffler for vacuum pump and the vacuum pump with the muffler | |
| CN209244846U (en) | A kind of outlet noise-reducing structure of Roots blower | |
| CN211950864U (en) | Water-cooling silencer for screw vacuum pump | |
| CN204003638U (en) | A kind of silencer of high pressure blower | |
| CN213421335U (en) | Ventilation equipment of low noise operation | |
| CN111720326A (en) | Novel swing rotor compressor with low-pressure cavity in shell | |
| CN212672056U (en) | High-efficient two-stage compression oil spout screw air compressor machine | |
| CN213016858U (en) | High-speed double-impeller fan | |
| CN219413023U (en) | Volute casing | |
| CN214887808U (en) | Air blower with good sealing effect and capable of reducing noise and vibration | |
| CN218934823U (en) | Fan casing of easy quick assembly | |
| CN220505402U (en) | Noise-reducing air inlet structure of high-speed centrifugal fan | |
| CN214742254U (en) | Low-noise mute unidirectional flow fan | |
| CN220415733U (en) | Low-noise cabinet type centrifugal fan | |
| CN219317183U (en) | Scroll compressor shell with noise reduction effect | |
| CN220505382U (en) | Impeller sealing assembly for high-speed single-stage centrifugal fan |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |