CN104074158B - Handheld blower - Google Patents
Handheld blower Download PDFInfo
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- CN104074158B CN104074158B CN201310110140.XA CN201310110140A CN104074158B CN 104074158 B CN104074158 B CN 104074158B CN 201310110140 A CN201310110140 A CN 201310110140A CN 104074158 B CN104074158 B CN 104074158B
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Abstract
The invention provides a handheld blower. The blower comprises a casing, a handgrip, a battery and a blow pipe, wherein an air inlet is formed in the casing, a duct component is arranged on the casing, and the casing is connected to the blow pipe through the duct component; the battery is mounted on the casing; the handgrip is positioned above the casing and the battery; the duct component is mounted in front of the air inlet in the casing; the blow pipe defines a central axis in a lengthwise direction; and the handgrip comprises holding parts which are distributed on both sides of a plane on which the integral gravity center of the blower is formed, and the plane is parallel to the axis and is perpendicular to a working ground. The integral structure of the handheld blower disclosed by the invention is compact, and the gravity center is close to the holding parts, so that the force required for overcoming the deflection of the handheld blower for an operator in the use procedure is reduced, the comfort degree for holding the blower is increased, and the fatigue feeling for holding the blower in the use procedure for a long term is reduced.
Description
Technical field
The present invention relates to a kind of garden type electric tool, particularly a kind of hand blower.
Background technology
Existing garden class hand blower mainly realizes power supply by two ways, and one kind is external power supply, a kind of
It is to adopt battery bag, if adopting external power supply, often can only have being operated of power interface, greatly limiting hand-held
The spatial dimension of formula blower application, and adopt this problem of solution that battery bag then can be very high.But, during using battery bag,
For ensure endurance, the weight of battery bag and size often larger, continuing to increase with battery capacity, hand-held blow
The overall weight of machine also increases therewith, and being held by hand comfortably property is gradually lowered, and the part of most of hand blowers is arranged at present
Unreasonable, lead to malfunction, operator needs to be additionally provided the power overcoming hand blower deflection in use,
Thus easily cause hand during long-time use aching.
Content of the invention
It is an object of the invention to provide a kind of preferable hand blower of operation comfort.
For reaching above-mentioned purpose, the present invention provides a kind of hand blower, including housing, handle, battery and blower, institute
State and air inlet and an exhausting assembly are provided with housing, housing is connected on blower by exhausting assembly, described battery peace
It is contained on housing, described handle is located at the top of housing and battery, described exhausting assembly is installed on the front of housing air inlet, institute
State blower and define a central axis in the longitudinal direction, described handle includes grip part, described grip part is distributed in blows
The both sides of blower fan entirety center of gravity place plane, described plane is parallel to described axis and vertical with work ground.
Further, the both sides being distributed in described plane that described grip part is symmetrical.
Further, described exhausting assembly include the exhausting being connected with housing, the motor being installed in exhausting and fan and
One connecting tube with the mutual clamping of exhausting, connecting tube is connected with blower.
Further, described housing, battery, exhausting assembly and blower are located substantially on same straight line.
Further, described housing include accommodating chamber and supply circulation to sweep, described handle is arranged on housing
Sweep on.
Further, described air inlet includes main air inlet, auxiliary air inlet mouth and sidepiece air inlet, main air inlet and auxiliary
Air inlet is arranged at the bottom of housing, and sidepiece air inlet is arranged on the side wall of housing.
Further, an air intake box is installed in described housing accommodating chamber, described air intake box is connected with described exhausting assembly
Form the unit that can work independently.
Further, described air intake box includes bottom air inlet portion, rear portion inlet section, sidepiece air inlet and air outlet, wherein
Bottom air inlet portion and sidepiece inlet section are rail shape structure, and rear portion inlet section be arranged to one with housing on bending section
Divide corresponding inclined-plane, the main air inlet on housing together form the first air blasting passage, housing with bottom air inlet portion and air outlet
On auxiliary air inlet mouth and rear portion inlet section and air outlet together form the second air blasting passage, the sidepiece air inlet on housing with
Sidepiece inlet section and air outlet are collectively forming the 3rd air blasting passage.
Further, it is provided with, in described connecting tube and exhausting, the support ring accommodating motor, motor is arranged in support ring,
Fan is connected with motor output shaft, the wind-guiding muscle all integrally formed with some divergent shapes in connecting tube and exhausting, and at least one
It is provided with, on described wind-guiding muscle, the passage that power supply machine wire passes through.
Further, described housing is provided with two lanyard holes, the distance substantially phase of two lanyard holes to handle centre
Same, described hand blower also includes braces, braces two ends are connected in described lanyard hole.
The hand blower of the present invention by the grip part on handle being arranged on the both sides of machine gravity place plane,
Make compact overall structure, centroidal distance grip part is near, decreases operator and overcomes hand blower inclined in use
Turn required power, increase degree of being held by hand comfortably, reduce hand-held feeling of fatigue during long-time use.
Brief description
Fig. 1 is the perspective view of the hand blower in embodiment of the present invention；
Fig. 2 is that the hand blower in embodiment of the present invention removes the front view after partial shell；
Fig. 3 is the front view of the hand blower in embodiment of the present invention；
Fig. 4 is the top view of the hand blower in embodiment of the present invention；
Fig. 5 is the structural representation that is connected with exhausting assembly of air intake box of the hand blower in embodiment of the present invention
Figure；
Fig. 6 is the structural representation of the handle of hand blower in embodiment of the present invention；
Fig. 7 is the sectional view of the exhausting assembly of hand blower in embodiment of the present invention；
Fig. 8 be embodiment of the present invention in hand blower exhausting assembly remove part exhausting and connecting tube after
Axonometric chart；
Fig. 9 is hand blower fan blade external diameter and aspect of blowing efficiency functional relationship in embodiment of the present invention
Curve.
Specific embodiment
In order to better understand the technology contents of the present invention, illustrate especially exemplified by specific embodiment and appended by coordinating as
Under.
Refer to Fig. 1 and Fig. 2, as the hand blower 10 of embodiment of the present invention, including housing 11, air intake box
12nd, handle 13, control assembly 14, battery 15, exhausting assembly 17 and blower 19, wherein exhausting assembly 17 is right respectively with battery 15
The both sides of housing 11 should be located at, handle 13 is arranged on housing 11, and housing 11 is connected with blower 19 by exhausting assembly 17, enters
Wind box 12 is located inside housing 11.
Please also refer to Fig. 3, housing 11 includes accommodating chamber 110, installation portion 111, main air inlet 112, auxiliary air inlet mouth
113rd, sidepiece air inlet 114 and sweep 115, accommodating chamber 110 is formed in housing 11, and air intake box 12 is arranged on accommodating chamber
In 110, exhausting assembly 17 one end is fixedly mounted in installation portion 111.Main air inlet 112 is arranged at auxiliary air inlet mouth 113
The bottom of housing 11, sidepiece air inlet 113 is arranged on the side wall of housing 11, and air-flow passes through main air inlet 112 or auxiliary air inlet
Mouth 113 entrance, flows into exhausting assembly 17 from installation portion 111 after the guiding of sweep 115.Sidepiece air inlet 114 has
There iss auxiliary air inlet, more preferable air inlet effect can be played, certainly also can not need sidepiece air inlet 114.
Refer to Fig. 5, air intake box 12 includes bottom air inlet portion 120, rear portion inlet section 121, sidepiece inlet section 122 and goes out
Air port 123, wherein bottom air inlet portion 120 and rear portion inlet section 121 are rail shape structure, and rear portion inlet section 121 is arranged
Become one with the corresponding ramp structure of sweep 115 on housing 11, the air outlet 123 of air intake box 12 and exhausting assembly 17
Air intake（Figure is not marked）Connect, now air intake box 12 and exhausting assembly 17 form the unit 18 that can work independently, on air intake box
Bottom air inlet portion 120, rear portion inlet section 121, sidepiece inlet section 122 form multiple air blasting passage with air outlet 123 respectively, because
No matter how housing 11 changes for this, as long as the unit 18 that can work independently can load in housing and form air blasting passage, machine is just
Blowing function can be realized.In this way can be in the case that internally working cell be constant, the quick hand-held that changes blows
The external form of blower fan.In embodiments of the present invention, the bottom air inlet portion of the main air inlet 112 on housing 11 and blowing box 12
120 and air outlet 123 together form the first air blasting passage, the rear portion of auxiliary air inlet mouth on housing 11 113 and blowing box 12
Inlet section 121 and air outlet 123 together form the second air blasting passage, sidepiece air inlet on housing 114 and blowing box 12
Sidepiece inlet section 122 and air outlet 123 form the 3rd air blasting passage together.
Please also refer to Fig. 1, Fig. 2, Fig. 4 and Fig. 6, handle 13 is used for gripping hand blower 10, it is located at housing 11
And the top of battery 15 being arranged on the sweep 115 of housing 11, handle 13 includes grip part 130, battery installation section 131
And speed governing portion 132, wherein grip part 130 is located between battery installation section 131 and speed governing portion 132.
In embodiments of the present invention, a central axis L1 is alongst defined on blower 19, blowing
Overall center of gravity G of machine is located in plane P1, and plane P1 is vertical with the ground P2 of work, simultaneously parallel with axis L1.Housing
11st, battery 15, exhausting assembly 17 and blower 19 are located substantially on same straight line, and the grip part 130 on handle 13 is distributed in
State the both sides of plane P1, preferably symmetrical for grip part 130 is distributed in plane P1 both sides.So compact conformation, distance of centre of gravity
Near grip part, decrease the power overcoming hand blower deflection required in use, increase degree of being held by hand comfortably, subtract
Few hand-held feeling of fatigue during long-time use.Battery can certainly be arranged on above or below housing 11, housing
11st, exhausting assembly 17 and blower 19 are located substantially on same straight line, and it is flat that the grip part 130 on handle 13 is distributed in center of gravity place
Face（Figure is not marked）Both sides, the diameter parallel of described plane and blower 19, and, above-described work vertical with work ground P2
It is defined as a horizontal plane as ground.
Control assembly 14 is used for controlling opening and closing and the rotating speed size of hand blower, and it includes controlling hand blower
The trigger 140 of opening and closing, the lock-button 141 preventing hand blower error starting, control hand blower are transported with maximum (top) speed
The speed governing button 143 amplifying button 142 and adjusting hand blower motor 172 rotating speed turning, wherein speed governing button 143 are located at speed governing portion
On 132.For the convenience operating, wherein trigger 140, lock-button 141 and amplification button 142 is arranged on grip part 130, so
Position setting can ensure that operator can while by trigger action 140 can with thumb operate amplify button 142, in addition
Work under the conditions of high speed is dried if necessary to long-time, operator can also be pressed by palm when gripping handle 13 simultaneously
Amplify button 142 and lock-button 141, press trigger squeeze 140 additionally by finger part, so only handss can be completed by one-handed performance
Hold starting and its continuous running being kept with maximum running speed of formula hair-dryer, reduce the fatigue of hand during using,
Increase and grip comfort level.Wherein lock-button 141 is merely to the auxiliary preventing maloperation from starting hand blower and arranging is opened
Close part it is envisaged that lock-button 141 can also not had, only pass through trigger 140 and amplification button 142 completes opening of hand blower
Dynamic process simultaneously keeps its continuous running.
Battery 15 is arranged on housing 11 by battery installation section 131, for providing power supply, housing to hand blower
It is provided with the ejection 116 with battery 15 cooperation and battery mounting base on 11（Figure is not marked）, eject 116 and be connected with spring 117,
And can rotate relative to housing, when battery 15 is installed on housing 11, the front end of battery 17 promotes ejection 116 to overcome bullet
The elastic force of spring 117 rotates and is displaced to a precalculated position, and when dismantling battery 15, ejection 116 is in the elasticity of spring 117
Under power effect, battery 15 is ejected towards the direction of dismounting.
Battery lock 1311 is provided with battery installation section 131, battery lock 1311 is used for for battery 15 being locked at housing
On 11, on battery lock 1311, linkage is provided with button release 1312, by pressing or promoting the band of button release 1312 linkage
Galvanic electricity pond lock 1311 is separated with battery 15, and then battery 15 can easily disassemble in the presence of ejection 116.When
So, battery installation section 131 can also be arranged on housing 11, as long as being locked on housing 11 when can play installation battery 15
Function on the battery mounting base of setting.
Refer to Fig. 7 and Fig. 8, exhausting assembly 17 includes the connecting tube 170 being connected with blower 19, be connected with housing 11
Exhausting 171 and motor 172 and fan 173, motor 172 is connected with the trigger 140 in control assembly 14 by wire, connecting tube
170 with the mutual clamping of exhausting 171, be provided with the support ring 174 accommodating motor 172, motor 172 in connecting tube 170 and exhausting 171
It is arranged in support ring 174, fan 173 is connected with the output shaft of motor 172, be all integrally formed in connecting tube 170 and exhausting 171
There is the wind-guiding muscle 175 of some divergent shapes, wind-guiding muscle 175 one end is connected on connecting tube 170 or the inwall of exhausting 171, the other end
It is connected in support ring 174, wherein at least one wind-guiding muscle 175 is provided with the passage 176 that power supply machine 172 wire passes through.This
Sample not only increased the reliability of wire positioning but also decreased windage, and do not increased new part, fixing wire letter during assembling
List, reliability, convenience.If it is understood that exhausting 171 length, enough it is also possible to not pass through connecting tube 170, directly will be propped up
Pushing out ring 174 and wind-guiding muscle 175 are arranged in exhausting 171.Exhausting 171 has an inlet section 1711, in order to reduce exhausting air intake
Noise at portion 1711, exhausting inlet section 1711 is arranged for ease of the lip structure of wind-guiding, and above-mentioned lip structure can be with exhausting
171 integrally formed or formed independent part be installed in exhausting 171.
In embodiments of the present invention, fan 173 be aerofoil fan, motor 172 be brshless DC motor, fan 173 by
Motor 172 drives, and it includes one and is installed to electric machine rotational axis（Figure is not marked）On wheel hub 1731, multiple be installed to above-mentioned wheel hub
Blade 1732 on 1731, its Leaf 1732 and wheel hub 1731 can be integrally formed or be assembled into after being formed separately
Together.
Fan 173 is provided with trouserss 177 near one end of housing 11, and motor 172 is connected to fan 173 near blower
19 one end, because fan 173 is aerofoil fan, air-flow enters inlet air by the first air blasting passage and second, third air blasting passage
After fan 173, in the presence of fan 173 axial direction by wind-guiding muscle 175, and flow in blower 19.In embodiment party of the present invention
In formula, support ring 174 includes receiving portion 1741 and the air dam 1742 accommodating motor 172, the front end perforate (figure of receiving portion 1741
Do not mark), air dam 1742 is pyramidal structure and is integrally formed with receiving portion 1741, air dam 1742 is arranged in support ring 174
Near one end of blower 19, air dam 1742 is provided with some fresh air inlets（Figure is not marked）, enter for cooling airflow.In blowing
During, because the air pressure of motor 172 periphery is high compared with the air pressure near fan 173, in the presence of pressure differential, produce time air-flow,
The fresh air inlet that secondary air-flow passes through on air dam 1742 flows into inside support ring 174, inside cooling motor 172, eventually through receiving
The front end perforate in portion 1741 is flowed out, and so can play the effect of cooling motor 172 during blowing again.
Referring again to Fig. 3, for the ease of carrying, the hand blower of the present invention is additionally provided with braces（Figure is not
Show）, braces two ends are connected respectively to two lanyard holes 118,119 being arranged on housing 11, and two lanyard holes 118,119 are to holding
The distance at Chi Bu 130 center is substantially the same, and two lanyard holes 118, the midpoints of 119 position lines are located at machine gravity line
Vicinity.
Hand-held DC blower is mainly used in blowing the fallen leaves near ground, court and grandstand and small-sized rubbish, through adjusting
Grind and obtain, in order to blow afloat the rubbish in the substantial amounts of fallen leaves in ground and some cracks, it usually needs the air quantity of hand blower
Preferably it is greater than 395cfm.The hand-held DC blower being arranged on battery bag on housing in the market is due to battery
The limitation of the aspect such as capacity is little and hair-dryer whole machine air-out is less efficient, causes hair-dryer to be extremely difficult to air quantity and is more than
395cfm, the working time is more than the performance indications of 5min.Therefore, in order to reach larger air quantity and higher aspect of blowing efficiency, need
Battery capacity, brshless DC motor, the parameter of aerofoil fan and Duct design are optimized.
In order to reach preferable airflow value and working time, the capacity of battery is typically larger than 170wh, battery under normal circumstances
Capacity be directly proportional to the weight of itself, for hand blower, due to the weight demands to whole machine, battery inclusion quantity
Preferred scope between 170wh-400wh, if such setting be because on the one hand battery inclusion quantity too little it is impossible to meet
Air quantity and the requirement of working time；And if on the other hand too big, the hand-held in use feeling of fatigue meeting of battery inclusion quantity
Increase, be unfavorable for that operator works long hours.
Table 1 lists battery capacity in 200wh and 300wh, and hand blower runs and minimum wind in maximum quantity of wind
Effective time when amount is run.It can also be seen that battery capacity one timing from table 1, air quantity was inversely proportional to the working time,
That is air quantity is bigger, and the working time is shorter.According to ergonomicss, and by main screw lift, people bear use
A large amount of simulation experiment analyses of degree draw, are relatively suitable for the performance of the hand-held direct current hand blower of masses' client's use requirement
Parameter is：Between 385cfm-700cfm, the working time is between 20min-75min to air quantity.
Table 1
| Battery capacity | Maximum quantity of wind | Minimum air quantity |
| 200wh | 36min | 120min |
| 300wh | 54min | 180min |
In the case that battery capacity is certain, it is more than the handss of 395cfm, higher aspect of blowing efficiency in order to obtain an air quantity
Hold formula direct current hand blower in addition it is also necessary to be optimized to brshless DC motor, the parameter of aerofoil fan and Duct design.
Referring again to Fig. 7 and Fig. 8, motor 172 is received into the support ring 174 of setting in exhausting 171 and connecting tube 170
Interior, the wheel hub 1731 of aerofoil fan 173 is installed to the rotary shaft of motor 172（Figure is not marked）On, according to aerodynamic principle, it is
Reduce windage, improve wind speed, the outline of trouserss 177, wheel hub 1731 and support ring 174 be designed to one streamlined, therefore
Motor 172 diameter also determines the diameter of wheel hub 1731 simultaneously.Additionally, when designing aerofoil fan, the root of blade
The ratio of portion's diameter and top diameter, i.e. the ratio of fan hub diameter and outer blade diameter, hereinafter referred to as hub ratio, be one very heavy
The parameter wanted, same impeller outer diameter, wheel hub lobule length of a film is more suitable for the axial flow blower of low pressure and mass flow, through sunykatuib analyses wheel
, between 0.25-0.45, the air-out efficiency comparison of fan blade is high for hub ratio.If therefore motor diameter is larger, corresponding hub diameter
Also can be larger, in order that hub ratio parameter is maintained in optimum interval, thus obtaining higher air-out efficiency, the diameter phase of blade
Should increase, and then lead to exhausting volume to increase, the volume of whole machine also increases, so either configuration design or actually used mistake
Operational comfort in journey all can be adversely affected, it is therefore preferable that motor diameter is not more than 35mm, such overall mass is more
Gently, take up space less.According to the scope of hub ratio, can from which further follow that the scope of outer blade diameter 78mm-140mm it
Between, such aspect of blowing efficiency is higher, as shown in figure 9, C1 and C2 is respectively air quantity in 560cfm and 500cfm, through analogue simulation
The curve chart of functional relationship between modeling analysis gained outer blade diameter and aspect of blowing efficiency, outer blade diameter is in 85mm- as seen from the figure
During 140mm, preferably, aspect of blowing efficiency here is defined as the work(of air current flow generation and fan blade rotation is consumed for aspect of blowing efficiency
Work(ratio.
Further, because the diameter of motor is less than 35mm, air quantity is more than 12cfm/mm with the ratio of motor diameter, therefore
Compared with common hand blower, the hand blower in the present invention obtains more powerful blowing by the motor of small size
Wind effect.
Below the Duct design of the present invention is described in detail, referring again to Fig. 2, along the direction of axis L1,
The flow cross section S1 in the air channel near air inlet 112 position for the rear end of fan 173 is more than air outlet 191 position on blower 19
Flow cross section S3, and between exhausting 171 inwall and fan hub 1731 formed an annular flow face（Figure is not marked）,
The flowing in the flow cross section S3 at air outlet 191 position and aerofoil fan 173 present position annular flow face on blower 19
Ratio between the S2 of cross section is preferably greater than or equal to 0.8, and such setting effectively improves airflow characteristic, improves blowing
Efficiency.Fan 173 defines an outer contour L2 to 191 sections of air channels of air outlet simultaneously, and L1 and L2 defines an angle.Excellent
Choosing, angle between axis L1 and outer contour L2 is less than 8 degree, so arranges and is because that angle is bigger air-flow is formed necessarily
Windage, the air flow losses of such wind path wall increase, and the loss of the high velocity air of circulation in blower 19 increases, and leads to whole machine
Aspect of blowing efficiency reduces.Optimization by two above parameter, it is possible to achieve favourable air current flow situation is simultaneously in blower 19
Inside realize the less pressure loss, effectively improve aspect of blowing efficiency.
In order to reach enough air outputs at air outlet 191, through CFD（Computational fluid dynamicses）Analysis and test number
According to summary, it is commonly designed larger air outlet area it is preferred that the cross-sectional area at air outlet 191 position is set greater than
4300mm².Certainly, the increase wind speed with blowing area can decrease, through to practical operation preferred air-out open area
It is set to 4300mm2To 8000mm2.
By the battery capacity in the present invention, brshless DC motor, the optimization of the parameter designing of aerofoil fan and air channel
The improvement of design, when battery capacity is between 170wh-400wh, the air quantity of hand blower all can reach 395cfm with
On, particularly when air quantity is in 430-700cfm, remain to meet the working time more than 5min.Ensure that hair-dryer with the most simultaneously
When Wind Volume runs, air quantity is more than or equal to 0.7cfm/w with the ratio of input power, and aspect of blowing efficiency is very significantly improved.
Although the present invention is disclosed above with preferred embodiment, so it is not limited to the present invention.The affiliated skill of the present invention
Has usually intellectual, without departing from the spirit and scope of the present invention, when can be used for a variety of modifications and variations in art field.Cause
This, protection scope of the present invention ought be defined depending on those as defined in claim.
Claims (6)
1. a kind of hand blower, including housing, handle, battery and blower, described housing is provided with air inlet and one
Individual exhausting assembly, housing is connected on blower by exhausting assembly, described battery be arranged on housing it is characterised in that：Institute
State the top that handle is located at housing and battery, described exhausting assembly is installed on the front of housing air inlet, and described blower is being grown
Degree defines a central axis on direction, and described handle includes grip part, and described grip part is distributed in hair-dryer entirety center of gravity
The both sides of place plane, described plane is parallel to described axis and vertical with work ground；Described housing, battery, exhausting group
Part and blower are located substantially on same straight line；Described air inlet includes main air inlet, auxiliary air inlet mouth and sidepiece air inlet, main
Air inlet and auxiliary air inlet mouth are arranged at the bottom of housing, and sidepiece air inlet is arranged on the side wall of housing；Described housing holds
Receive and an air intake box is installed in chamber, described air intake box is connected one unit that can work independently of formation with described exhausting assembly；Institute
Stating fan is aerofoil fan；The pivot center of described fan and described central axes, wear in the pivot center of described fan
Cross described battery bag；, positioned at the lower section of described motor, described handle is located at described for described main air inlet and described auxiliary air inlet mouth
The top of motor；Described housing include accommodating chamber and supply circulation to sweep, described handle is arranged on the curved of housing
In bent portions.
2. hand blower according to claim 1 it is characterised in that：What described grip part was symmetrical is distributed in described flat
The both sides in face.
3. hand blower according to claim 1 it is characterised in that：Described exhausting assembly includes being connected with housing
Exhausting, the motor being installed in exhausting and fan and a connecting tube with the mutual clamping of exhausting, connecting tube and blower phase
Even.
4. hand blower according to claim 1 it is characterised in that described air intake box include bottom air inlet portion,
Rear portion inlet section, sidepiece air inlet and air outlet, wherein bottom air inlet portion and sidepiece inlet section are rail shape structure, and after
Portion inlet section is arranged to an inclined-plane corresponding with the sweep on housing, the main air inlet on housing and bottom air inlet portion and
Air outlet together form the first air blasting passage, and the auxiliary air inlet mouth on housing and rear portion inlet section and air outlet together form
Second air blasting passage, the sidepiece air inlet on housing is collectively forming the 3rd air blasting passage with sidepiece inlet section and air outlet.
5. hand blower according to claim 3 it is characterised in that：It is provided with appearance in described connecting tube and exhausting
Receive the support ring of motor, motor is arranged in support ring, and fan is connected with motor output shaft, and in connecting tube and exhausting, all one becomes
Type has the wind-guiding muscle of some divergent shapes, and is provided with, at least one described wind-guiding muscle, the passage that power supply machine wire passes through.
6. hand blower according to claim 1 it is characterised in that：Two lanyard holes are provided with described housing,
The distance of two lanyard hole to handle centre is substantially the same, and described hand blower also includes braces, and braces two ends are divided
It is not connected in described lanyard hole.
Priority Applications (16)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310110140.XA CN104074158B (en) | 2013-03-29 | 2013-03-29 | Handheld blower |
| US14/034,064 US9603497B2 (en) | 2013-02-20 | 2013-09-23 | Handheld blower |
| CA2828569A CA2828569C (en) | 2013-02-20 | 2013-09-26 | Handheld blower |
| GB1402818.7A GB2513229B (en) | 2013-02-20 | 2014-02-18 | Handheld Blower |
| AU2014100150A AU2014100150A4 (en) | 2013-02-20 | 2014-02-19 | Handheld Blower |
| DE202014100753.9U DE202014100753U1 (en) | 2013-02-20 | 2014-02-20 | hand fan |
| FR1451354A FR3002244B3 (en) | 2013-02-20 | 2014-02-20 | MAN BLOWER |
| US15/427,673 US20170208748A1 (en) | 2013-02-20 | 2017-02-08 | Handheld blower |
| US15/601,668 US9974241B2 (en) | 2013-02-20 | 2017-05-22 | Handheld blower |
| GBGB1716176.1A GB201716176D0 (en) | 2013-02-20 | 2017-10-04 | Handheld blower |
| US15/962,412 US10091954B1 (en) | 2013-02-20 | 2018-04-25 | Handheld blower |
| US16/035,003 US10264739B2 (en) | 2013-02-20 | 2018-07-13 | Handheld blower |
| US16/293,433 US20190191638A1 (en) | 2013-02-20 | 2019-03-05 | Handheld blower |
| US16/373,263 US10487850B2 (en) | 2013-02-20 | 2019-04-02 | Handheld blower |
| US16/693,549 US11248626B2 (en) | 2013-02-20 | 2019-11-25 | Handheld blower |
| US17/575,744 US20220136526A1 (en) | 2013-02-20 | 2022-01-14 | Handheld blower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310110140.XA CN104074158B (en) | 2013-03-29 | 2013-03-29 | Handheld blower |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104074158A CN104074158A (en) | 2014-10-01 |
| CN104074158B true CN104074158B (en) | 2017-02-08 |
Family
ID=51595734
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310110140.XA Active CN104074158B (en) | 2013-02-20 | 2013-03-29 | Handheld blower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104074158B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106192835B (en) * | 2015-05-25 | 2019-09-20 | 南京德朔实业有限公司 | Electric tool system and backpack blower fan system |
| CN106192836B (en) * | 2015-05-25 | 2020-06-23 | 南京德朔实业有限公司 | Backpack type fan system |
| CN105040615A (en) * | 2015-06-15 | 2015-11-11 | 上虞市冠业电器有限公司 | Blowing-absorbing machine with shared blowing-absorbing channel |
| CN107558422B (en) * | 2016-06-30 | 2020-06-23 | 南京德朔实业有限公司 | Hand-held hair drier |
| CN108684444A (en) * | 2017-03-16 | 2018-10-23 | 苏州宝时得电动工具有限公司 | Hair-dryer |
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|---|---|---|---|---|
| US4413371A (en) * | 1981-06-29 | 1983-11-08 | Emerson Electric Co. | Blower attachment for portable power unit |
| JP4719254B2 (en) * | 2008-07-03 | 2011-07-06 | 株式会社丸山製作所 | Portable blower grip |
| US8671508B2 (en) * | 2009-11-17 | 2014-03-18 | Makita Corporation | Dust collector |
| FR2964987B1 (en) * | 2010-09-20 | 2012-10-05 | Pellenc Sa | ELECTROPORTATIVE BLOWER. |
| DE102010046565A1 (en) * | 2010-09-27 | 2012-03-29 | Andreas Stihl Ag & Co. Kg | Hand-guided blower |
| CN201990974U (en) * | 2011-03-18 | 2011-09-28 | 宁波伊司达工具有限公司 | Rechargeable leaf blower |
| CN203284755U (en) * | 2013-03-29 | 2013-11-13 | 南京德朔实业有限公司 | Handheld type blower |
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2013
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