CN108797483A - Wearable blower fan system - Google Patents
Wearable blower fan system Download PDFInfo
- Publication number
- CN108797483A CN108797483A CN201710301568.0A CN201710301568A CN108797483A CN 108797483 A CN108797483 A CN 108797483A CN 201710301568 A CN201710301568 A CN 201710301568A CN 108797483 A CN108797483 A CN 108797483A
- Authority
- CN
- China
- Prior art keywords
- blower fan
- hose
- foaming tube
- wearable
- wall
- 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
Links
- 238000005187 foaming Methods 0.000 claims abstract description 82
- 239000000463 material Substances 0.000 claims abstract description 4
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 13
- 238000007493 shaping process Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 7
- 230000005484 gravity Effects 0.000 description 4
- 238000007664 blowing Methods 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002360 explosive Substances 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000006261 foam material Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
- E01H1/00—Removing undesirable matter from roads or like surfaces, with or without moistening of the surface
- E01H1/08—Pneumatically dislodging or taking-up undesirable matter or small objects; Drying by heat only or by streams of gas; Cleaning by projecting abrasive particles
- E01H1/0809—Loosening or dislodging by blowing ; Drying by means of gas streams
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
- E01H1/00—Removing undesirable matter from roads or like surfaces, with or without moistening of the surface
- E01H1/08—Pneumatically dislodging or taking-up undesirable matter or small objects; Drying by heat only or by streams of gas; Cleaning by projecting abrasive particles
- E01H2001/0881—Details for pneumatically dislodging or removing not related to the mouth-piece
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a kind of wearable blower fan systems, including：Wearable equipment and blower fan apparatus；Blower fan apparatus includes：Motor, fan and ducting assembly；Fan is driven by motor and is rotated；Ducting assembly is formed with the channel for being oriented to air-flow caused by fan, and channel is equipped with air inlet and air outlet；Fan is set in channel；Blower fan apparatus is connected to wearable equipment, the weight transfer of blower fan apparatus to wearable equipment；Ducting assembly includes：The foaming tube of the hose and be made of expanded material that can be bent；Foaming tube is set in hose and is bent with hose；The outer wall of hose forms multiple annular projections；The inner wall of hose is formed with annular recess corresponding with annular projection；The outer wall of foaming tube is formed with the protrusion to match at least one annular recess；Protrusion is set in annular recess；The conduit wall in channel is at least partly made of the inner wall of foaming tube.Wearable blower fan system disclosed by the invention, noise are small efficient.
Description
Technical field
The present invention relates to a kind of blower fan systems, and in particular to a kind of wearable blower fan system.
Background technology
Hair-dryer is a kind of garden instrument, is used for the cleaning of garden.
Hair-dryer includes motor and fan.Motor-driven fan rotation is to generate air-flow to blow fallen leaves etc..Hair-dryer
The blower fan system for carrying out operation is dressed including the hand-held hand blower for carrying out operation of user and user.User's wearing is made
The blower fan system of industry is referred to as wearable blower fan system.
Invention content
In order to solve the deficiencies in the prior art, it is small efficient wearable that the purpose of the present invention is to provide a kind of noises
Blower fan system.
In order to realize that above-mentioned target, the present invention adopt the following technical scheme that：
A kind of wearable blower fan system, including：Wearable equipment and blower fan apparatus；Wearable equipment is dressed for user；Wind turbine
Device, including：Motor, fan and ducting assembly；Fan is driven by motor and is rotated；Ducting assembly is formed with for being oriented to fan institute
The channel of the air-flow of generation, channel are equipped with air inlet and air outlet；Fan is set in channel；Blower fan apparatus is connected to wearable
Equipment, the weight transfer of blower fan apparatus to wearable equipment；Ducting assembly includes：The hose that can be bent and by expanded material system
At foaming tube；Foaming tube is set in hose and is bent with hose；The outer wall of hose forms multiple annular projections；Hose
Inner wall is formed with annular recess corresponding with annular projection；The outer wall of foaming tube is formed with and at least one annular recess phase
The protrusion matched；Protrusion is set in annular recess；The conduit wall in channel is at least partly made of the inner wall of foaming tube.
Further, foaming tube is detachably connected to hose.
Further, foaming tube machine-shaping in hose.
Further, the surface of the inner wall of foaming tube is smooth.
Further, the inner wall of foaming tube is formed with multiple apertures.
Further, foaming tube is formed with multiple protrusions and connects the interconnecting piece of multiple protrusions.
Further, ducting assembly includes multiple foaming tubes；Hose definition has a center line；Hose extends along center line；
The minimum range of hose to center line is less than or equal to foaming tube to the minimum range of center line.
Further, ducting assembly further includes blast pipe and discharge pipe；Blast pipe forms air inlet；Discharge pipe forms outlet air
Mouthful；The both ends of hose are separately connected blast pipe and discharge pipe.
Further, motor and fan are located in blast pipe；Blower fan apparatus further includes the handle for user's operation；Handle connects
It is connected to discharge pipe.
Further, wearable blower fan system further includes：Battery pack is powered for motor；Pedestal, equipped with matching with battery pack
The auxiliary section of conjunction；Pedestal is connected to wearable equipment；Battery pack is detachably connected to auxiliary section.
Wearable blower fan system disclosed by the invention, is arranged foaming tube in hose.The inner wall of foaming tube is oriented to air-flow,
A part for conduit wall as channel.Noise can be effectively reduced, aspect of blowing efficiency is improved.
Description of the drawings
Fig. 1 is a kind of schematic diagram of blower fan system；
Fig. 2 is the explosive view of blower fan system in Fig. 1；
Fig. 3 is the explosive view of the blower fan apparatus of blower fan system in Fig. 1；
Fig. 4 is the schematic diagram of the blower fan apparatus of blower fan system in Fig. 1；
Fig. 5 is the schematic diagram after the hose bending of blower fan apparatus in Fig. 4；
Fig. 6 is the sectional view of blower fan apparatus in Fig. 4；
Fig. 7 is the sectional view of the hose of blower fan apparatus and foaming tube in Fig. 6；
Fig. 8 is the close-up schematic view of the hose of blower fan apparatus and foaming tube in Fig. 6；
Fig. 9 is the hose of another embodiment and the schematic diagram of foaming tube；
Figure 10 is the schematic diagram after the installation of hose and foaming tube in Fig. 9；
Figure 11 is the hose of another embodiment and the schematic diagram of foaming tube；
Figure 12 is the schematic diagram after the installation of hose and foaming tube in Figure 11.
Specific implementation mode
Specific introduce is made to the present invention below in conjunction with the drawings and specific embodiments.
It is different from the hand blower that user holds operation, blower fan system 100 is a kind of user's wearing progress operation
Hair-dryer.
As depicted in figs. 1 and 2, blower fan system 100 includes wearable equipment 10, blower fan apparatus 20 and battery pack 30.
Wearable equipment 10 is dressed for user.Blower fan apparatus 20 is connected to wearable equipment 10.The gravity of blower fan apparatus 20
It is transferred to wearable equipment 10.Wearable equipment 10 is worn on a part for user's body, to undertake wind turbine dress by the part
Set 20 gravity.Wearable equipment 10 can be worn on the trunk of user, can also be worn on the four limbs of user.As a kind of tool
The embodiment of body, wearable equipment 10 include waistband 11 and shoulder belt 12.Waistband 11 is worn on the waist of user, is undertaken by waist
The gravity of blower fan apparatus 20.Shoulder belt 12 is undertaken the gravity of blower fan apparatus 20 by shoulder by the shoulder of user.As a kind of optional
Embodiment, wearable equipment includes waistband but including shoulder belt.As another embodiment, wearable equipment includes shoulder
Band does not include waistband.
Blower fan apparatus 20 realizes blowing function.As depicted in figs. 1 and 2, blower fan system 100 includes pedestal 40.Wearable dress
Standby 10 are connected to pedestal 40.Blower fan apparatus 20 is connected to pedestal 40.Pedestal 40 is equipped with the auxiliary section 41 coordinated with battery pack 30.Electricity
Pond packet 30 is detachably connected to auxiliary section 41.
Blower fan system 100 includes connector 50.Connector 50 connects pedestal 40 and blower fan apparatus 20.Connector 50 makes wind turbine
Device 20 can be moved relative to pedestal 40.Specifically, blower fan apparatus 20 can be rotated relative to pedestal 40 around first axle 102.
Further, blower fan apparatus 20 can be rotated relative to pedestal 40 around second axis 103.First axle 102 is perpendicular to second axis
103.More specifically, blower fan apparatus 20 is rotatablely connected around second axis 103 to connector 50.Connector 50 is around first axle 102
It is rotatablely connected to pedestal 40.
As shown in Figures 3 to 6, blower fan apparatus 20 includes motor 21, fan 22 and ducting assembly 23.
Motor 21 is using electric power as the motor of power.Battery pack 30 is powered for motor 21.As other embodiment, motor
It can also be the internal combustion engine using fuel combustion as power.It can be not provided with battery pack.
Fan 22 is driven by motor 21 and is rotated.Ducting assembly 23 is formed with the channel 231 for being oriented to the air-flow that fan 22 generates.
Channel 231 is equipped with air inlet 232 and air outlet 233.Fan 22 is arranged in channel 231.
As shown in Figures 3 to 6, ducting assembly 23 includes hose 24, foaming tube 25 and discharge pipe 26.
With reference to figure 4 and Fig. 5, hose 24 can be bent.Discharge pipe 26 is connected to hose 24.
The setting of hose 24 enables discharge pipe 26 movable in a certain range, to increase the operation model of hair-dryer
It encloses.
As shown in Figure 6 and Figure 7, hose 24 defines own centre line 101.Air-flow passes through hose 24 along 101 direction of center line.It is soft
The outer wall of pipe 24 is formed with multiple annular projections 241.It is recessed that the inner wall of hose 24 is formed with ring-type corresponding with annular projection 241
Slot 242.Specifically.At circle, the line in the center of circle constitutes the center line 101 of hose 24 in each section of the inner wall of hose 24.
Hose 24 extends along center line 101.Multiple annular projections 241 are arranged successively along 101 direction of center line.
Foaming tube 25 is set in hose 24.Foaming tube 25 reduces noise when work.Specifically, foaming tube 25 is by sending out
Foam material is made.Due to reducing noise when air-flow is enable to flow through foaming tube 25 for many small holes in 25 inside of foaming tube.Hair
25 internal porous of pipe is steeped but also 25 lighter in weight of foaming tube, flexible to operation.The outer wall of foaming tube 25 is formed with protrusion
251.Protrusion 251 can match with annular recess 242, and protrusion 251 is set in annular recess 242.Foaming tube 25
Inner wall then constitutes a part for the conduit wall in channel 231.The conduit wall in channel 231 is at least partly by foaming tube 25 in other words
Inner wall is constituted.It is contacted with the inner wall of foaming tube 25 when air-flow flows through foaming tube 25.The setting of foaming tube 25 avoids air flow contacts
24 rough inner wall of hose, reduces windage, improves aspect of blowing efficiency and air-flow is in direct contact foaming tube 25 with more excellent
Different noise reduction.
As shown in Figure 4 and Figure 5, blower fan apparatus 20 further includes the handle 28 for user's operation.Handle 28 is connected to discharge pipe
26.Handle 28 is equipped with the control trigger 281 for controlling motor 21.
As shown in Figures 3 to 6, ducting assembly 23 further includes blast pipe 27.Motor 21 and fan 22 are set to blast pipe 27
It is interior.The both ends of hose 24 are separately connected blast pipe 27 and discharge pipe 26.Foaming tube 25, which is set in hose 24, compares foaming tube 25
It is set at blast pipe 27 closer to motor 21 and fan 22.I.e. foaming tube 25 has better noise reduction effect close to noise source
Fruit.The inner wall of the inner wall of blast pipe 27, the inner wall of foaming tube 25 and discharge pipe 26 constitutes the conduit wall in channel 231.Blast pipe 27
One end be equipped with filtration members 29.Filtration members 29, which cover air inlet 232, prevents foreign matter from entering channel 231 from air inlet 232 to connect
Touch fan 22 or motor 21.
Blower fan apparatus 20 further includes left shell 271 and right shell body 272.Blower fan apparatus 20 further includes circuit board 273.Circuit board
273 are electrically connected with the realization of motor 21.
It is dismountable three sections that discharge pipe 26, which divides,.Specifically, discharge pipe 26 includes the first discharge pipe 261, the second outlet air
Pipe 262 and third discharge pipe 263.
Second discharge pipe 262 is detachably connected to the first discharge pipe 261, third discharge pipe 263 is detachably connected to second
Discharge pipe 262.As another embodiment, discharge pipe 26 can also be made of independent one section of pipe.
Foaming tube 25 is detachably connected to hose 24.Foaming tube 25 is fixed in protrusion 251 and the cooperation of annular recess 242
To hose 24.Foaming tube 25 after foaming by installing to hose 24.As another optional embodiment, foaming tube exists
Machine-shaping in hose.Mold of the hose as foaming tube foaming.Liner of the independent inner core rod as foaming tube is set.
Inner core rod is removed after the completion of foaming.Foaming tube is more bonded with hose, and foaming tube and hose fixation are relatively reliable, have
Effect avoids movement of the foaming tube relative to hose.
The surface of the inner wall of foaming tube 25 is smooth.Advantageously reduce windage.As another optional embodiment, it foams
The inner wall of pipe is formed with multiple apertures.The aperture that inner wall is formed is connected to the aperture inside foaming tube further decreases noise.
As a kind of specific embodiment, as shown in Figure 7 and Figure 8, foaming tube 25 is formed with multiple protrusions 251.Hair
Bubble pipe 25 is also formed with interconnecting piece 252.Interconnecting piece 252 connects multiple protrusions 251.
As another embodiment, as shown in Figure 9 and Figure 10, ducting assembly includes multiple foaming tubes 25 '.Each foaming
A protrusion 251 ' is only arranged in pipe 25 '.The minimum range L1 of hose 24 ' to center line 101 ' is arrived less than or equal to foaming tube 25 '
The minimum range L2 of center line 101 '.In other words, foaming tube 25 ' is set in the annular recess 242 ' of hose 24 '.
When the structure setting of foaming tube 25 ' makes foaming tube 25 ' be located at hose 24 ', the section that can allow for air-flow to flow through
Area increases.Outlet air efficiency can be improved.Foaming tube 25 and hose 24 in Fig. 7 and Fig. 8 and foaming tube 25 ' in Fig. 9 and Figure 10
It is compared with hose 24 ', is allowing the area of section that flows through of air-flow identical, foaming tube 25 ' and hose in Fig. 9 and Figure 10
24 ' volume smallers, the cost of material is low for saving, and structure is lighter, easy to operation.
As another embodiment, as is illustrated by figs. 11 and 12, the inner wall of hose 24 " forms multiple annular recess
242 ", the outer wall of hose 24 " is formed with multiple annular projections 241 ".Annular recess 242 " is corresponding with annular projection 241 ".
Ducting assembly includes a foaming tube 25 ".Foaming tube 25 " includes protrusion 251 " and interconnecting piece 252 ".Foaming tube 25 " includes more
A protrusion 251 ".Protrusion 251 " can be with annular recess 242 ".But when foaming tube 25 " is set in hose 24 ", not
All annular recess 242 " are equipped with protrusion 251 ".As an alternative embodiment, foaming tube 25 " is provided only with one
Protrusion 251 ".
Blower fan apparatus can also be used as independent hair-dryer, such as hand blower.Blower fan apparatus includes connecting tube.Even
It takes over including outer layer and internal layer.Hose is as outer layer, and foaming tube is as internal layer.
The basic principles, main features and advantages of the invention have been shown and described above.The technical staff of the industry should
Understand, the invention is not limited in any way above-described embodiment, all to be obtained by the way of equivalent substitution or equivalent transformation
Technical solution is all fallen in protection scope of the present invention.
Claims (10)
1. a kind of wearable blower fan system, including：
Wearable equipment is dressed for user；
Blower fan apparatus, including：
Motor；
Fan is driven by the motor and is rotated；With
Ducting assembly, is formed with the channel for being oriented to air-flow caused by the fan, and the channel is equipped with air inlet and goes out
Air port；The fan is set in the channel；
The blower fan apparatus is connected to the wearable equipment, the weight transfer of the blower fan apparatus to the wearable equipment；
It is characterized in that：
The ducting assembly includes：The foaming tube of the hose and be made of expanded material that can be bent；
The foaming tube is set in the hose and is bent with the hose；
The outer wall of the hose forms multiple annular projections；
The inner wall of the hose is formed with annular recess corresponding with the annular projection；
The outer wall of the foaming tube is formed with the protrusion to match at least one annular recess；The protrusion setting
In in the annular recess；
The conduit wall in the channel is at least partly made of the inner wall of the foaming tube.
2. wearable blower fan system according to claim 1, it is characterised in that：
The foaming tube is detachably connected to the hose.
3. wearable blower fan system according to claim 1, it is characterised in that：
Foaming tube machine-shaping in the hose.
4. wearable blower fan system according to claim 1, it is characterised in that：
The surface of the inner wall of the foaming tube is smooth.
5. wearable blower fan system according to claim 1, it is characterised in that：
The inner wall of the foaming tube is formed with multiple apertures.
6. wearable blower fan system according to claim 1, it is characterised in that：
The foaming tube is formed with multiple protrusions and connects the interconnecting piece of multiple protrusions.
7. wearable blower fan system according to claim 1, it is characterised in that：
The ducting assembly includes multiple foaming tubes；
The hose definition has a center line；The hose extends along the center line；
The minimum range of the hose to the center line is less than or equal to the foaming tube to the minimum range of the center line.
8. wearable blower fan system according to claim 1, it is characterised in that：
The ducting assembly further includes blast pipe and discharge pipe；
The blast pipe forms the air inlet；
The discharge pipe forms the air outlet；
The both ends of the hose are separately connected the blast pipe and the discharge pipe.
9. wearable blower fan system according to claim 8, it is characterised in that：
The motor and the fan are located in the blast pipe；
The blower fan apparatus further includes the handle for user's operation；
The handle is connected to the discharge pipe.
10. wearable blower fan system according to claim 1, it is characterised in that：
The wearable blower fan system further includes：
Battery pack is powered for the motor；
Pedestal is equipped with the auxiliary section coordinated with the battery pack；The pedestal is connected to the wearable equipment；
The battery pack is detachably connected to the auxiliary section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710301568.0A CN108797483A (en) | 2017-05-02 | 2017-05-02 | Wearable blower fan system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710301568.0A CN108797483A (en) | 2017-05-02 | 2017-05-02 | Wearable blower fan system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108797483A true CN108797483A (en) | 2018-11-13 |
Family
ID=64054042
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710301568.0A Pending CN108797483A (en) | 2017-05-02 | 2017-05-02 | Wearable blower fan system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108797483A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11434929B2 (en) | 2019-08-02 | 2022-09-06 | Techtronic Cordless Gp | Blowers having noise reduction features |
| US11778960B2 (en) | 2020-01-21 | 2023-10-10 | Techtronic Cordless Gp | Blowers |
| US11817073B2 (en) | 2020-01-21 | 2023-11-14 | Techtronic Cordless Gp | Power tool having noise reduction features |
| EP4292425A1 (en) * | 2022-06-16 | 2023-12-20 | Milwaukee Electric Tool Corporation | Blower having noise reduction features |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE8715857U1 (en) * | 1987-11-30 | 1988-08-04 | A. Kayser GmbH & Co KG, 3352 Einbeck | Hose |
| JPH05215095A (en) * | 1992-02-04 | 1993-08-24 | Mitsubishi Heavy Ind Ltd | Shoulder-pack type blower |
| DE4230823C1 (en) * | 1992-09-15 | 1993-08-26 | Alcan Deutschland Gmbh, 3400 Goettingen, De | |
| JPH07293373A (en) * | 1994-04-28 | 1995-11-07 | Toyoda Gosei Co Ltd | Air intake hose |
| DE29611707U1 (en) * | 1996-07-05 | 1997-10-30 | AEG Hausgeräte GmbH, 90429 Nürnberg | Spiral housing for an air conveying fan in a household appliance, in particular in an electric clothes dryer |
| JPH1182862A (en) * | 1997-08-29 | 1999-03-26 | Inoac Corp | Flexible hose |
| JP2001073755A (en) * | 1999-09-01 | 2001-03-21 | Nakagawa Sangyo Kk | Exhaust pipe and exhaust system of internal combustion engine |
| EP1091155A2 (en) * | 1999-04-20 | 2001-04-11 | Westaflex Tubos Flexiveis Ltda. | Porosity inspection device for an acoustical hose conducting air |
| KR200336596Y1 (en) * | 2003-09-15 | 2003-12-18 | 헵시바디지텍 주식회사 | a noise reducing structure for a tube type heater |
| CN103089498A (en) * | 2011-11-03 | 2013-05-08 | 北汽福田汽车股份有限公司 | Air inlet pipe |
| TW201320921A (en) * | 2011-11-29 | 2013-06-01 | rui-hong Yang | Noise reduction structure of hair dryer |
| CN203604276U (en) * | 2013-12-24 | 2014-05-21 | 国家电网公司 | Noise reduction type draught fan mounting assembly for transformer substation |
| CN203836478U (en) * | 2014-05-21 | 2014-09-17 | 哈尔滨工程大学 | Pipeline vibration noise suppressor structure |
| CN106192836A (en) * | 2015-05-25 | 2016-12-07 | 南京德朔实业有限公司 | Backpack blower fan system |
| CN106192837A (en) * | 2015-05-25 | 2016-12-07 | 南京德朔实业有限公司 | Blower fan system |
| CN206873364U (en) * | 2017-05-02 | 2018-01-12 | 南京德朔实业有限公司 | Wearable blower fan system |
-
2017
- 2017-05-02 CN CN201710301568.0A patent/CN108797483A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE8715857U1 (en) * | 1987-11-30 | 1988-08-04 | A. Kayser GmbH & Co KG, 3352 Einbeck | Hose |
| JPH05215095A (en) * | 1992-02-04 | 1993-08-24 | Mitsubishi Heavy Ind Ltd | Shoulder-pack type blower |
| DE4230823C1 (en) * | 1992-09-15 | 1993-08-26 | Alcan Deutschland Gmbh, 3400 Goettingen, De | |
| JPH07293373A (en) * | 1994-04-28 | 1995-11-07 | Toyoda Gosei Co Ltd | Air intake hose |
| DE29611707U1 (en) * | 1996-07-05 | 1997-10-30 | AEG Hausgeräte GmbH, 90429 Nürnberg | Spiral housing for an air conveying fan in a household appliance, in particular in an electric clothes dryer |
| JPH1182862A (en) * | 1997-08-29 | 1999-03-26 | Inoac Corp | Flexible hose |
| EP1091155A2 (en) * | 1999-04-20 | 2001-04-11 | Westaflex Tubos Flexiveis Ltda. | Porosity inspection device for an acoustical hose conducting air |
| JP2001073755A (en) * | 1999-09-01 | 2001-03-21 | Nakagawa Sangyo Kk | Exhaust pipe and exhaust system of internal combustion engine |
| KR200336596Y1 (en) * | 2003-09-15 | 2003-12-18 | 헵시바디지텍 주식회사 | a noise reducing structure for a tube type heater |
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| TW201320921A (en) * | 2011-11-29 | 2013-06-01 | rui-hong Yang | Noise reduction structure of hair dryer |
| CN203604276U (en) * | 2013-12-24 | 2014-05-21 | 国家电网公司 | Noise reduction type draught fan mounting assembly for transformer substation |
| CN203836478U (en) * | 2014-05-21 | 2014-09-17 | 哈尔滨工程大学 | Pipeline vibration noise suppressor structure |
| CN106192836A (en) * | 2015-05-25 | 2016-12-07 | 南京德朔实业有限公司 | Backpack blower fan system |
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| CN206873364U (en) * | 2017-05-02 | 2018-01-12 | 南京德朔实业有限公司 | Wearable blower fan system |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11434929B2 (en) | 2019-08-02 | 2022-09-06 | Techtronic Cordless Gp | Blowers having noise reduction features |
| US11841023B2 (en) | 2019-08-02 | 2023-12-12 | Techtronic Cordless Gp | Blowers having noise reduction features |
| US11778960B2 (en) | 2020-01-21 | 2023-10-10 | Techtronic Cordless Gp | Blowers |
| US11817073B2 (en) | 2020-01-21 | 2023-11-14 | Techtronic Cordless Gp | Power tool having noise reduction features |
| EP4292425A1 (en) * | 2022-06-16 | 2023-12-20 | Milwaukee Electric Tool Corporation | Blower having noise reduction features |
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Address after: 211106 No. 529, 159, Jiangjun Avenue, Jiangning District, Nanjing, Jiangsu Province Applicant after: Nanjing Quanfeng Technology Co.,Ltd. Address before: 211106, No. 159, general road, Jiangning economic and Technological Development Zone, Nanjing, Jiangsu Applicant before: NANJING CHERVON INDUSTRY Co.,Ltd. |