CN113236585A - Low-noise anti-reverse axial flow fan - Google Patents
Low-noise anti-reverse axial flow fan Download PDFInfo
- Publication number
- CN113236585A CN113236585A CN202110534498.XA CN202110534498A CN113236585A CN 113236585 A CN113236585 A CN 113236585A CN 202110534498 A CN202110534498 A CN 202110534498A CN 113236585 A CN113236585 A CN 113236585A
- Authority
- CN
- China
- Prior art keywords
- axial flow
- flow fan
- cardboard
- fixed
- protective shell
- 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.)
- Pending
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D19/00—Axial-flow pumps
- F04D19/002—Axial flow fans
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/002—Details, component parts, or accessories especially adapted for elastic fluid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/52—Casings; Connections of working fluid for axial pumps
- F04D29/522—Casings; Connections of working fluid for axial pumps especially adapted for elastic fluid pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/663—Sound attenuation
- F04D29/664—Sound attenuation by means of sound absorbing material
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/668—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps damping or preventing mechanical vibrations
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
- F04D29/701—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps
- F04D29/703—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps specially for fans, e.g. fan guards
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D71/00—Mechanisms for bringing members to rest in a predetermined position
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a low-noise anti-reversion axial flow fan, which comprises a protective shell, a protective net, an axial flow fan, a motor, a rotating shaft and a support frame, wherein the protective net is arranged at the upper part of the protective shell, a clamping plate is welded at the edge of the protective net and clamped on the protective shell, the axial flow fan is arranged on the rotating shaft of the motor, the motor is fixed at the inner bottom surface of the protective shell through the support frame, an anti-reversion structure is arranged below the axial flow fan, and the anti-reversion structure is arranged, so that the axial flow fan can be effectively prevented from being reversed under the action of wind power when the axial flow fan does not work, instantaneous large current generated by instantaneous switching is avoided, and the risk that a circuit board of the fan is burnt out is avoided.
Description
Technical Field
The invention relates to the technical field of fan devices, in particular to a low-noise anti-reversion axial flow fan.
Background
When the axial flow fan works, the blades push air to flow in the same direction as the shaft, so the axial flow fan is called, in the process of nonuse at present, due to the difference of environments, when the axial flow fan is not electrified, the fan is supposed to be driven by external air flow to rotate clockwise, and at the moment of electrifying and starting the axial flow fan, the fan blades of the axial flow fan can be driven by a thrust force, and the thrust force is greater than the static friction force of the fan blades, so the axial flow fan can rotate anticlockwise. If the instantaneous switching generates an instantaneous large current, the circuit board of the fan is burnt out, and meanwhile, the fan can vibrate and generate noise in the working process to influence the hearing of people.
Therefore, the present invention provides a low-noise anti-reverse axial fan to solve the above problems.
Disclosure of Invention
The present invention is directed to a low noise anti-reverse axial fan, which solves the above problems.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides an axial fan of low noise anti-reversion, includes protecting crust, protection network, axial fan, motor, pivot and support frame, the upper portion at the protecting crust of installing of protection network, and the marginal welding of protection network has the cardboard, and the cardboard card is on the protecting crust, and axial fan installs in the pivot of motor, and the motor passes through the support frame to be fixed in the inside bottom surface of protecting crust, is provided with below the axial fan and prevents the contrarotation structure.
Preferably, the inside of protecting crust is provided with inhales the cotton circumferential strip of sound, inhales the cotton circumferential strip card of sound in the cardboard.
Preferably, the anti-reversion structure comprises rim plate, ring dish, latch, flexure strip and fixed axle, and rim plate fixed mounting is on the motor, and on the centre of rim plate was equipped with the ring dish, ring dish fixed mounting was in the pivot, and movable mounting has the latch on the ring dish, and one side of latch is equipped with the flexure strip, and flexure strip fixed mounting is on the fixed axle, and fixed axle fixed mounting is on the ring dish.
Preferably, the cardboard is the L type, and one side of cardboard is pegged graft and is had the inserted bar, and the one end fixed mounting that is close to the protecting crust inner wall of inserted bar has the fixture block, and it has the spring to peg graft on the inserted bar, and the spring is located between fixture block and the cardboard.
The clamping block is in a circular arc shape close to the inner wall part of the protective shell, so that the sound-absorbing cotton ring strip can be attached to the inner wall part of the protective shell.
Preferably, the one end setting of cardboard is on the fixed block, and the fixed block vertical welding has worn the screw bolt on cardboard and the fixed block on the lateral wall of protecting crust, and the upper portion threaded connection that the screw bolt has the nut, ties through nut and screw thread and connects cardboard and fixed block for the protection network is fixed in the upper end of protecting crust.
Preferably, the cardboard card is "door" type in the part of protecting crust, and the shock pad has been pasted to the inner wall, and the shock pad is "door" type.
Preferably, the upper and lower two sides of fixed block are equipped with the damping ring, and the damping ring overlaps on the screw bolt, and the damping ring is the rubber material.
Compared with the prior art, the invention has the beneficial effects that:
1. by arranging the anti-reverse structure, when the axial flow fan does not work, the axial flow fan can be effectively prevented from reversing under the action of wind power, and the risk that a circuit board of the fan is burnt out due to instantaneous large current generated by instantaneous switching is avoided;
2. inhale the cotton circumferential strip of sound through having set up, inhale the cotton circumferential strip of sound and can effectively reduce the noise that axial fan produced when operating condition, inhale the cotton circumferential strip card of sound simultaneously on the cardboard, be equipped with the spring between fixture block and the cardboard, can make through the spring and inhale the cotton circumferential strip of sound and conveniently dismantle the change more.
Drawings
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a front view of a portion of the structure of the present invention;
FIG. 3 is an exploded view of a portion of the present invention;
FIG. 4 is an exploded view of a portion of the structure of the present invention;
FIG. 5 is a perspective view of a portion of the present invention;
fig. 6 is an enlarged view of the detail of the structure at a.
In the figure: the protective shell comprises a protective shell 1, a protective net 2, an axial fan 3, a motor 4, a rotating shaft 5, a supporting frame 6, a wheel disc 7, a circular disc 8, a latch 9, an elastic sheet 10, a fixed shaft 11, a sound-absorbing cotton ring strip 12, a clamping plate 13, a spring 14, an inserted rod 15, a clamping block 16, a threaded bolt 17, a damping ring 18, a fixed block 19, a clamping plate 20 and a damping pad 22.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below. The embodiments of the present invention, and all other embodiments obtained by a person of ordinary skill in the art without any inventive work, belong to the scope of protection of the present invention.
Referring to fig. 1 to 6, the present invention provides a technical solution: the utility model provides an axial fan that low noise anti-reversion, including protecting crust 1, protection network 2, axial fan 3, motor 4, pivot 5 and support frame 6, the installation of protection network 2 is on the upper portion of protecting crust 1, the edge welding of protection network 2 has cardboard 20, cardboard 20 card is on protecting crust 1, axial fan 3 installs in motor 4's pivot 5, motor 4 passes through support frame 6 to be fixed in the inside bottom surface of protecting crust 1, be provided with below axial fan 3 and prevent the structure of reversing.
The inside of protecting crust 1 is provided with inhales the cotton circumferential strip 12 of sound, inhales the cotton circumferential strip 12 card of sound in cardboard 13.
Prevent reversing the structure by rim plate 7, ring dish 8, latch 9, flexure strip 10 and fixed axle 11 are constituteed, 7 fixed mounting on motor 4 of rim plate, the centre of rim plate 7 is equipped with on ring dish 8, ring dish 8 fixed mounting is on pivot 5, movable mounting has latch 9 on the ring dish 8, one side of latch 9 is equipped with flexure strip 10, flexure strip 10 fixed mounting is on fixed axle 11, fixed axle 11 fixed mounting is on ring dish 8, under the effect of flexure strip 10 and latch 9, can make ring dish 8 only can carry out clockwise rotation, just so can avoid axial fan 3 to appear reversing the condition when inoperative.
Cardboard 13 is the L type, and it has inserted bar 15 to peg graft in one side of cardboard 13, and the one end fixed mounting that is close to 1 inner wall of protecting crust of inserted bar 15 has fixture block 16, and it has spring 14 to peg graft on the inserted bar 15, and spring 14 is located between fixture block 16 and cardboard 13, can be so that inhale sound cotton girth 12 and more conveniently dismantle the change through spring 14.
The clamping block 16 is in a circular arc shape close to the inner wall part of the protective shell 1, so that the sound-absorbing cotton ring strip 12 can be more attached.
One end of the clamping plate 20 is arranged on the fixing block 19, the fixing block 19 is vertically welded on the side wall of the protective shell 1, the threaded bolt 17 penetrates through the clamping plate 20 and the fixing block 19, the upper portion of the threaded bolt 17 is connected with the nut 21 through threads, the clamping plate 20 and the fixing block 19 are connected through the nut 21 and the threaded bolt 17, and the protective net 2 is fixed at the upper end of the protective shell 1.
Cardboard 20 card is "door" type in the part of protecting crust 1, and the shock pad 22 has been pasted to the inner wall, and shock pad 22 is "door" type, can effectively reduce cardboard 20 through shock pad 22 and receive the influence of vibrations, reduces the noise that vibrations produced simultaneously.
The upper and lower two sides of fixed block 19 are equipped with damping ring 18, and damping ring 18 overlaps on threaded bolt 17, and damping ring 18 is the rubber material, can reduce the noise that vibrations produced.
The working principle is as follows: in the use process, the pivot 5 of motor 4 can drive axial fan 3 rotation work, can produce vibrations at the in-process of axial fan 3 work, damping ring 18 and shock pad 22 can slow down the noise that vibrations lead to the protection network 2 to produce and the noise that protection network 2 and protective housing 1 friction produced limitedly, simultaneously when pivot 5 drives axial fan 3 clockwise turning, can drive ring dish 8 and rotate together, when axial fan 3 is in inoperative state, can make latch 9 card in the draw-in teeth groove of rim plate 7 under the effect of flexure strip 10, can avoid axial fan 3's reversal like this.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides an axial fan of low noise anti-reversion, includes protecting crust (1), protection network (2), axial fan (3), motor (4), pivot (5) and support frame (6), its characterized in that: the protective screening device is characterized in that the protective screening (2) is arranged on the upper portion of the protective shell (1), a clamping plate (20) is welded to the edge of the protective screening (2), the clamping plate (20) is clamped on the protective shell (1), the axial flow fan (3) is arranged on a rotating shaft (5) of the motor (4), the motor (4) is fixed to the bottom surface of the inner portion of the protective shell (1) through a supporting frame (6), and an anti-reverse rotation structure is arranged below the axial flow fan (3).
2. A low noise anti-reverse axial flow fan according to claim 1, wherein: the sound-absorbing cotton ring strip (12) is arranged inside the protective shell (1), and the sound-absorbing cotton ring strip (12) is clamped in the clamping plate (13).
3. A low noise anti-reverse axial flow fan according to claim 1, wherein: prevent contrary structure of changeing by rim plate (7), ring dish (8), latch (9), flexure strip (10) and fixed axle (11) are constituteed, rim plate (7) fixed mounting is on motor (4), the centre of rim plate (7) is equipped with on ring dish (8), ring dish (8) fixed mounting is on pivot (5), movable mounting is gone up in ring dish (8) has latch (9), one side of latch (9) is equipped with flexure strip (10), flexure strip (10) fixed mounting is on fixed axle (11), fixed axle (11) fixed mounting is on ring dish (8).
4. A low noise anti-reverse axial flow fan according to claim 1, wherein: cardboard (13) are the L type, and the one side of cardboard (13) is pegged graft and is had inserted bar (15), and the one end fixed mounting that is close to protecting crust (1) inner wall of inserted bar (15) has fixture block (16), and it has spring (14) to peg graft on inserted bar (15), and spring (14) are located between fixture block (16) and cardboard (13).
5. A low noise anti-reverse axial flow fan according to claim 4, wherein: the clamping block (16) is in a circular arc shape close to the inner wall part of the protective shell (1), so that the sound-absorbing cotton ring strip (12) can be attached to the inner wall part of the protective shell.
6. A low noise anti-reverse axial flow fan according to claim 1, wherein: the one end setting of cardboard (20) is on fixed block (19), and fixed block (19) vertical welding is on the lateral wall of protecting crust (1), has worn screw bolt (17) on cardboard (20) and fixed block (19), and the upper portion threaded connection of screw bolt (17) has nut (21), connects cardboard (20) and fixed block (19) through nut (21) and screw bolt (17) for the upper end at protecting crust (1) is fixed in protection network (2).
7. A low noise anti-reverse axial flow fan according to claim 1, wherein: cardboard (20) card is "door" type in the part of protecting crust (1), and the inner wall pastes and has equipped with shock pad (22), and shock pad (22) are "door" type.
8. A low noise anti-reverse axial flow fan according to claim 6, wherein: the upper surface and the lower surface of the fixing block (19) are provided with damping rings (18), the damping rings (18) are sleeved on the threaded bolts (17), and the damping rings (18) are made of rubber materials and can reduce noise generated by vibration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110534498.XA CN113236585A (en) | 2021-05-17 | 2021-05-17 | Low-noise anti-reverse axial flow fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110534498.XA CN113236585A (en) | 2021-05-17 | 2021-05-17 | Low-noise anti-reverse axial flow fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113236585A true CN113236585A (en) | 2021-08-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110534498.XA Pending CN113236585A (en) | 2021-05-17 | 2021-05-17 | Low-noise anti-reverse axial flow fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113236585A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113944643A (en) * | 2021-10-11 | 2022-01-18 | 浙江欧盾风机有限公司 | Noise-reduction axial flow fan |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016008534A (en) * | 2014-06-24 | 2016-01-18 | パナソニックＩｐマネジメント株式会社 | Electric fan |
| CN207424020U (en) * | 2017-11-29 | 2018-05-29 | 重庆市远望谷科技有限公司 | A kind of PCB printed boards detecting tool |
| CN207568897U (en) * | 2017-11-20 | 2018-07-03 | 青岛一牧机械有限公司 | A kind of herding wind turbine being easily installed |
| CN210431877U (en) * | 2019-11-11 | 2020-04-28 | 田贝贝 | Bone conduction oscillator with frequency-reducing and noise-reducing functions |
| CN212155209U (en) * | 2020-03-24 | 2020-12-15 | 上海应达风机股份有限公司 | Mute type bidirectional flow fan |
| CN212890714U (en) * | 2020-09-21 | 2021-04-06 | 重庆东本摩托车制造有限公司 | Motorcycle storage box device |
| CN213116768U (en) * | 2020-07-04 | 2021-05-04 | 韶关市金徽厨具制造有限公司 | Electromagnetic stove cooling fan with waterproof function |
-
2021
- 2021-05-17 CN CN202110534498.XA patent/CN113236585A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016008534A (en) * | 2014-06-24 | 2016-01-18 | パナソニックＩｐマネジメント株式会社 | Electric fan |
| CN207568897U (en) * | 2017-11-20 | 2018-07-03 | 青岛一牧机械有限公司 | A kind of herding wind turbine being easily installed |
| CN207424020U (en) * | 2017-11-29 | 2018-05-29 | 重庆市远望谷科技有限公司 | A kind of PCB printed boards detecting tool |
| CN210431877U (en) * | 2019-11-11 | 2020-04-28 | 田贝贝 | Bone conduction oscillator with frequency-reducing and noise-reducing functions |
| CN212155209U (en) * | 2020-03-24 | 2020-12-15 | 上海应达风机股份有限公司 | Mute type bidirectional flow fan |
| CN213116768U (en) * | 2020-07-04 | 2021-05-04 | 韶关市金徽厨具制造有限公司 | Electromagnetic stove cooling fan with waterproof function |
| CN212890714U (en) * | 2020-09-21 | 2021-04-06 | 重庆东本摩托车制造有限公司 | Motorcycle storage box device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113944643A (en) * | 2021-10-11 | 2022-01-18 | 浙江欧盾风机有限公司 | Noise-reduction axial flow fan |
| CN113944643B (en) * | 2021-10-11 | 2022-07-26 | 浙江欧盾风机有限公司 | Noise-reduction axial flow fan |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210810 |
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| RJ01 | Rejection of invention patent application after publication |