CN107708405A - Aerofoil fan air blower and vacuum plant - Google Patents

Aerofoil fan air blower and vacuum plant Download PDF

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Publication number
CN107708405A
CN107708405A CN201680035966.6A CN201680035966A CN107708405A CN 107708405 A CN107708405 A CN 107708405A CN 201680035966 A CN201680035966 A CN 201680035966A CN 107708405 A CN107708405 A CN 107708405A
Authority
CN
China
Prior art keywords
instrument
air
outdoor electric
housing
baffle plate
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
Application number
CN201680035966.6A
Other languages
Chinese (zh)
Inventor
O.塞尔基延科
J.C.蒂罗内
D.L.费希尔
小蒂莫西.W.弗伦奇
D.A.米勒
S.贝利
K.E.戴尔
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Black and Decker Inc
Original Assignee
Black and Decker Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority to US201562158265P priority Critical
Priority to US62/158,265 priority
Priority to US15/096,695 priority
Priority to US15/096,695 priority patent/US20160324380A1/en
Application filed by Black and Decker Inc filed Critical Black and Decker Inc
Priority to PCT/US2016/031153 priority patent/WO2016179473A1/en
Publication of CN107708405A publication Critical patent/CN107708405A/en
Pending legal-status Critical Current

Links

Classifications

    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01GHORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G20/00Cultivation of turf, lawn or the like; Apparatus or methods therefor
    • A01G20/40Apparatus for cleaning the lawn or grass surface
    • A01G20/43Apparatus for cleaning the lawn or grass surface for sweeping, collecting or disintegrating lawn debris
    • A01G20/47Vacuum or blower devices

Abstract

The present invention relates to a kind of axialmode or type vacuum blower in upright arrangement, and it covers air inlet or exhaust outlet to switch between blowing operation pattern and vacuum mode of operation by moving the baffle plate in its housing according to selected operator scheme.Under the blowing pattern, fan component is driven in a first direction, and Air blowing is attached to the air hose of the front part of the housing.Under vacuum mode, the fan component is driven in reverse directions, and air and chip are inhaled into by the air hose.

Description

Aerofoil fan air blower and vacuum plant
Technical field
The present invention relates to the air blower and vacuum plant that open air uses, particularly aerofoil fan or type vacuum blower in upright arrangement (blowervac) design.
Background technology
In the prior art, aerofoil fan or type air blower in upright arrangement are known, and generally include fan, the fan Axis be aligned with air outlet so that air-flow be not forced is subjected to it is any it is significant turn or bending, increase airflow efficiency.The U.S. The example of such design is shown in open No.2012/0076672 and U.S. Publication No.2013/0239361.
In addition, in the prior art, the device not only dried but also vacuumized is known.Generally, these devices include having The main casing of fan and the pipe of at least two separation, using the first pipe when as air blower, and when as vacuum plant Use the second pipe.Air blower or vacuum plant are used as according to equipment, once only a pipe is attached to housing, and at this Pipe must be swapped out when switching between the two.The process can be time-consuming and be difficult to carry out.
Therefore, in the art there is still a need for a kind of air blower in upright arrangement, it can be used as air blower and can as vacuum holding Operation is put, without the air hose that swaps out.
The content of the invention
Therefore, the invention discloses type vacuum blower a kind of axial or in upright arrangement, its can its blowing operation pattern with Easily switch between its vacuum mode of operation.The vacuum blower includes main casing, and air hose is connected to the housing Front part, and there is air inlet and exhaust outlet in the posterior office of the housing.Set by the fan component of motor power supply In the housing so that its axis is aligned with the longitudinal axis of the air hose.
Baffle plate is located in the housing, and can be moved between the position that it covers air inlet or covers exhaust outlet. In this way, when the instrument is as blower operation, the baffle plate covers the exhaust outlet, and air by it is described enter Gas port is drawn into the housing, and leaves the instrument by the air hose.When the instrument operates as vacuum plant When, the baffle plate movement is to cover the air inlet, and motor reversal so that air is drawn into described by the air hose In instrument, and the instrument is left by the exhaust outlet.Collecting bag can be attached to the exhaust outlet, to collect by the work Has any chip of vacsorb.Importantly, identical air hose is used in both modes, when changing operator scheme not Need the air hose that swaps out.
In an embodiment of the present invention, the motor can be located at the outside of the housing, such as below the housing, And the fan component is connected to by transmission device.This allows the housing smaller, and improves the airflow efficiency in instrument.
In another embodiment of the invention, there is provided mutual interlocking gear, when the instrument is activated, to prevent from making operation Pattern changes between drying and vacuumizing.
Brief description of the drawings
Accompanying drawing described herein is merely to illustrate selected embodiment, rather than all possible embodiment, and simultaneously It is not intended to limitation the scope of the present disclosure.
Fig. 1 is the interior views of the exemplary tool constructed according to the teaching of the disclosure;
Fig. 2 is the perspective view of the fan component with mixing arm;
Fig. 3 is the front end view of Fig. 1 instrument;
Fig. 4 is the perspective view of the blade collar of Fig. 1 instrument;
Fig. 5 A and Fig. 5 B are simulation of air flow, and respectively illustrating is having blade and the instrument without Fig. 1 in the case of blade Wind speed;
Fig. 6 is the front view of the baffle plate of Fig. 1 instrument;
Fig. 7 is the perspective view of the second embodiment of the instrument constructed according to the teaching of the disclosure;
Fig. 8 is Fig. 7 interior views;
Fig. 9 is Fig. 7 side view, and wherein deep bead is in blowing mode position;
Figure 10 is analogous to the side view of Fig. 9 instrument, and wherein baffle plate is in vacuum mode position;
Figure 11 is the view of the mutual interlocking gear in handle;
Figure 12 is the front view of mutual interlocking gear;
Figure 13 is the perspective view of control handle;
Figure 14 is the perspective view of control handle and switch;And
Figure 15 is the perspective view of switch.
In some views of accompanying drawing, part corresponding to corresponding reference instruction.
Embodiment
Fig. 1 of refer to the attached drawing, a kind of outdoor electric instrument is constructed according to the teaching of the disclosure, it is therefore preferable to a kind of vacuum Air blower, and it is generally indicated by reference 10.Vacuum blower includes main casing 12, and it, which has, is arranged on top Handle 14, and it is attached to the air hose 16 of the front part of main casing 12.Air hose 16 is detachably connected to housing 12 The inclined collar 18.
In the posterior office of main casing 12, it is covered air inlet 20 by grid 22.Exhaust outlet 32 abuts air inlet.Fan For component in main casing 12, it has two groups of propellers, rear screw shaft 26a and front propeller 26b.The blade collar 28 is (also in Fig. 4 In show) be located at front propeller 26b front.
The panel hinge of the form of turnover panel 30, and can be in cocked position and extended position (with void near air inlet 20 Line is shown) between move, baffle plate stops air inlet 20 in cocked position, in extended position stop exhaust outlet 32.It should manage Solution, the shape of turnover panel is set as stopping air inlet 20 and exhaust outlet 32 completely, and is in the embodiment shown in Fig. 1 and Fig. 6 Nonplanar circular.
Two propellers of fan component are connected by single power transmission shaft 34, and power transmission shaft 34 is connected to electricity via transmission device 38 Machine 36, transmission device 38 are direct belt transmission in the present embodiment.Motor 36 is located at below main casing 12, in electric machine casing In 40.Two propellers 26a and 26b are fixed on single shaft 34 and rotated together so that motor 36 drive simultaneously propeller 26a and 26b.It will be appreciated, however, that the other embodiment of the present invention can be incorporated to any amount of propeller, including single propeller. In addition, transmission device can use other mechanisms, including but not limited to spur gear is with passing power.
In operation, vacuum blower 10 can be operated with the pattern of drying or vacuum mode.In order between both of which Changed, turnover panel 30 is moved between the two positions, and change motor drive direction.Switch 44 in handle 14 controls Supply the electric power of motor 36.AC or DC electric power can be provided.Switch 44 through the electric wiring of main casing 12 by being connected to electricity Machine, main casing 12 have internal layer 12a and outer layer 12b to accommodate wiring (see Fig. 3).
In blowing pattern, turnover panel 30 is in extended position so that it covers exhaust outlet 32.Motor revolves in a first direction Turn, in this case, air is drawn into by air inlet 20, and passes through housing 12 to leave air hose 16.Due to exhaust outlet 32 are stopped by turnover panel 30, so no air passes through in this direction.Further, since motor 36 is arranged on the outer of main casing 12 In portion, such as electric machine casing 40 below main casing 12, therefore reduce the radially and longitudinally size of main casing.In addition, by Air flow path is not hindered in motor, it is achieved that bigger airflow efficiency.
In order to further improve the performance added in blowing pattern, the blade collar 28 is arranged on the downstream of fan component 24, and And the blade 29 (referring to Fig. 3 and 4) including extending internally, it helps to reduce the turbulent flow in air-flow.Fig. 5 A and Fig. 5 B show respectively Having gone out is having blade and without the flow pattern in the case of blade.More specifically, two figures all show, in air hose 16 Exterior contour at (be labeled as 46 region) wind speed it is higher, and the speed with center of going to (region for being labeled as 48) Reduce.However, when comparing these figures, it is therefore clear that (Fig. 5 A) ratio in the case where there is blade 29 of high wind speed region 46 is not having (Fig. 5 B) is big in the case of vaned.
Referring now to Figure 1, the interior diameter of main casing 12 is more than air hose 16.Go to Fig. 3, it can be seen that the blade collar 28 Blade 29 extend internally so that their tip is aligned with the circumference of air hose 16, and is not extended to by the borders In region.This is done so that air stream turbulence is reduced in blowing pattern lower blade, while the validity period in vacuum mode is not hindered again Between any chip for collecting, as being further described below.
In order to be switched to vacuum mode, turnover panel 30 is set to be moved to cocked position, it stops air inlet in the cocked position 20.This opens the path of exhaust outlet 32.Mechanical rod member (not shown) can be provided so that turnover panel 30 moves between the two positions, But any kind of mechanism can be used.In a preferred embodiment, rod member also activates motor switch, motor switch reversion electricity Machine direction so that air is drawn into by air hose 16.When chip is drawn into main casing 12, it is by two propeller 26a (mulch) is stirred with 26b.With reference to figure 2, additional mixing arm 42 can be included, to help to stir to pull in main casing 12 Chip.Mixing arm 42 can be fixed to the axle 34 of fan component.When chip is stirred, it is left by exhaust outlet 32 And enter the collecting bag 50 of attachment.
As can be most preferably found out in figure 3, the propeller 26a and 26b of fan component 24 each include three blades 27a and 27b.Propeller 26a and 26b are offset mutually rotatingly so that their blade 27a and 27b is impartial around main casing 12 Ground is spaced apart.Alternatively, propeller 26a and 26b can be directed at so that rear screw shaft 26a blade is directly in front propeller 26b Blade behind.
Referring now to Figure 6, turnover panel 30 have it is nonplanar round-shaped, on the top surface with pan (scoop) 31. Pan 31 has the shape of circular bend, is used to help turnover panel being moved in suitable position.When in blowing pattern (when When turnover panel 30 is in extended position), air is drawn into by air inlet 20, and promotes turnover panel 30 down to blowing mode position In.The rear portion of pan 31 is smoothly transitioned from turnover panel 30 so that the air flowed on turnover panel is not disrupted.
On the contrary, when in vacuum mode, air is drawn into by air hose 16.If turnover panel 30 is in incorrect and put Lower position, pan 31 will catch air, and help to be raised to turnover panel in vertical underpressure pattern position.The anterior tool of pan There is the configuration similar to " eyelid ", the air-flow that it is designed as catching on turnover panel 30 is appropriate to help to lift turnover panel 30 In position.
With reference now to Fig. 7 to Figure 14, the second embodiment of the present invention is shown.The part similar with previous embodiment will It is indicated by identical reference numerals.The second embodiment is similar to first embodiment, except instrument from blowing patten transformation be true Outside the mode of empty pattern.
Fig. 7 shows vacuum blower 100, and it has the main casing 112 with air hose 16, on main casing 112 Handle 14 and the electric machine casing 40 for keeping motor 36.The rear portion 113 of housing 112 includes top section and bottom Section, the top section have a series of air vents or groove 114 as air inlet 120, and the compresses lower section has exhaust outlet 32.
It is the baffle plate 122 of shield form in the rear portion 113 of housing 112 with reference now to Fig. 8 to Figure 10, it can be with 180 degree is rotated to vacuum mode position from blowing mode position, and it covers the bottom of rear portion 113 half in mode position of drying Portion, the top half of rear portion 113 is covered in vacuum mode position.
Under the blowing pattern shown in Fig. 8 and Fig. 9, baffle plate 122 covers the bottom section of rear portion 113 so that it hinders Keep off exhaust outlet 32.In operation, fan component 24 is drawn air into by air inlet 120, and air then travels through fan group Part 24 and eventually off air hose 16.
Under the vacuum mode shown in Figure 10, baffle plate 122 is rotated so that and it covers the top section of rear portion 113, To stop air vent 114.Motor 36 and the reverse operating of fan component 24, and drawn air into by air hose 16, through passing through fan Component 24 is simultaneously discharged by exhaust outlet 32.With previous embodiments, bag can be attached to exhaust outlet 32 and be appointed with capturing and collecting What chip.
Knob 124 is mechanically connected to baffle plate 122, so that baffle plate 122 rotates between the two positions.Figure 11 is into Figure 13 Blocking mechanism is shown, it prevents knob from rotating in tool operation.First, it is located at handle 14 with reference to figure 11, power switch 125 On, and flexible-belt 126 is fixedly secured to switch 125.Switch 125 slides back and forth between three positions;(it is for closed position Foremost), low-power position (centre position) and high power position (backmost).
When moving switch 125, the free end 126a of band 126 is movable into and out the groove 128a in knob 124.This is scheming It is best shown in 12.When switch 125 is in the closed position, the free end 126a of band 126 is removed completely from groove 128a, Therefore knob rotates freely.When switch 125 is slipped into low-power position, band 126 moves slightly downward so that its half enters In groove 128a.Similarly, if switch 125 is moved in high power position, band 126 is moved fully into groove 128a.In low work( In rate position and high power position, band 126 prevents knob 124 from rotating.
In addition, because knob 124 can rotate 180 degree to vacuum mode from blowing pattern, on the first groove 128a opposite Second groove 128b is set.With 126 and second groove 128b interaction be similar to its interaction with the first groove 128a, it is allowed to Interlocking works under any operator scheme.
As it was previously stated, being moved by making baffle plate 122 between two position, knob 124 turns instrument from blowing pattern Change to vacuum mode.Meanwhile knob 124 automatically inverts the direction of motor 36 to meet operator scheme.For example, in blowing pattern Under, when baffle plate covers exhaust outlet 32, motor 36 is with first direction driving fan component 24 with by Air blowing air hose 16. Under vacuum mode, when baffle plate 122 covers air vent 114, motor 36 is with second direction driving fan component to draw air into Air hose 16.
Motor drive direction it is this it is auto-reverse be by switch 130 perform, as being best shown in figures 14 and 15. Switch 130 includes the pin 132 in the groove 134 being bent upwards in switch 130.The inner surface of knob 124 includes and pin Semi-circular channel 136 corresponding to 132.
When knob 124 rotates, pin 132 is advanced in passage 136, until the end (end wall 136a or 136b) of passage connects Dowel pin 132, and push it into groove 134 end position.For example, in Figure 14 and 15, pin 132 is arranged on groove In the part of 134 rightmost, this is blowing pattern so that motor operates in a first direction.When being transformed into vacuum mode, Knob 124 rotates counterclockwise.Pin 132 is advanced in passage 136, until end wall 136b contact plugs 132, and pushes it to groove 134 opposed end.This has inverted the direction of motor so that it is operated with second direction, and this is the vacuum mode of instrument.Except It is similar by the operation that instrument is switched to blowing pattern in terms of reverse directions.
The foregoing description to embodiment has been provided for the purpose of illustration and description.It is not intended to limit or Limit the disclosure.The single element or feature of specific embodiment are typically not limited to the specific embodiment, but in applicable feelings It is interchangeable under condition, and can be used in selected embodiment, even if being not shown or described in detail.Only as an example, Fig. 7 The knob, mutual interlocking gear and the motor reversal switch that are shown into Figure 15 embodiment can be incorporated into Fig. 1 to Fig. 6 embodiment In.They can also be varied in many ways.Such change is not qualified as deviating from the disclosure, and all such Modification is intended to be included in the scope of the present disclosure.

Claims (19)

1. a kind of outdoor electric instrument, including:
Housing, there is fan component;
Air hose, it is connected to the front part of the housing;
Motor, the fan component is operably connected to, in the first blowing pattern, the motor can drive the fan For component by air hose described in Air blowing, and in the second vacuum mode, the motor can drive the fan component to lead to Cross the air hose suction air.
2. outdoor electric instrument as claimed in claim 1, wherein the longitudinal direction of the axis of the fan component and the air hose Diameter parallel;And
The air inlet of the posterior office of the housing is additionally included in, when being operated with the blowing pattern, the air inlet energy It is enough to pull in air in the housing.
3. outdoor electric instrument as claimed in claim 2, in addition to exhaust outlet, described when being operated with the vacuum mode Exhaust outlet can discharge air the housing.
4. outdoor electric instrument as claimed in claim 3, in addition to the gear that can be moved between the first location and the second location Plate, the baffle plate described in the first position cover the exhaust outlet, enter described in the second place described in baffle plate covering Gas port so that when the baffle plate is in the first position, the instrument is operated with the blowing pattern, and works as the gear When plate is in the second place, the instrument is operated with the vacuum mode.
5. outdoor electric instrument as claimed in claim 4, wherein the baffle plate is moved into described from the first position Two positions automatically invert the direction of the fan component.
6. outdoor electric instrument as claimed in claim 4, wherein the baffle plate is can be in the first position and described second The form of the turnover panel pivoted between position.
7. outdoor electric instrument as claimed in claim 6, wherein the turnover panel includes at least one pan to help by described in During turnover panel is held in position in.
8. outdoor electric instrument as claimed in claim 4, wherein the baffle plate is can be in the first position and described second The form of the shield rotated between position.
9. outdoor electric instrument as claimed in claim 8, in addition to for rotating the knob of the shield, and for grasping Make to prevent the mutual interlocking gear that the shield rotates during the instrument.
10. outdoor electric instrument as claimed in claim 9, in addition to for opening and closing the power switch of the instrument; And
Wherein described mutual interlocking gear includes band, and the band has first end and the second end, and the first end regularly connects The power switch is connected to, the second end can connect when the power switch is in on-position with the groove in the knob Close, to prevent the knob from rotating.
11. outdoor electric instrument as claimed in claim 1, wherein the motor is located at the outside of main casing, and pass through transmission Device is connected to the fan component.
12. outdoor electric instrument as claimed in claim 1, wherein main casing are included in the leaf in the downstream of the fan component Piece, to reduce the turbulent flow of air-flow.
13. a kind of outdoor electric instrument, including:
Housing, wherein with fan component;
Motor, it is connected to the fan component, with a first direction with drive the fan component in the second reverse directions;
Air hose, it is connected to the front part of the housing;
The rear portion of the housing has air inlet and exhaust outlet;And
Baffle plate in the housing, it can cover second of the first position of the exhaust outlet with covering the air inlet Moved between putting.
14. outdoor electric instrument as claimed in claim 13, wherein the diameter parallel of the fan component is in the air hose Longitudinal axis.
15. outdoor electric instrument as claimed in claim 13, wherein when the baffle plate is in the first position, the work Tool is with pattern operation of drying, and air enters the instrument by the air inlet and passes through the sky in the blowing pattern Tracheae leaves the instrument, and when the baffle plate is in the second place, the instrument is operated with vacuum mode, described true Air enters the instrument by the air hose and leaves the instrument by the exhaust outlet in empty pattern.
16. outdoor electric instrument as claimed in claim 15, wherein the baffle plate is in the rear portion of the housing The form of shield, and knob is mechanically linked to the shield so that it rotates between the two positions.
17. outdoor electric instrument as claimed in claim 16, in addition to for activating the power switch of the instrument, and work as The instrument prevents the mutual interlocking gear of the knob rotation when activateding.
18. outdoor electric instrument as claimed in claim 15, wherein the motor is located at the outside of the housing, and pass through biography Dynamic device is connected to the fan component.
19. outdoor electric instrument as claimed in claim 15, wherein the baffle plate is can be in the first position and described the The form of the turnover panel pivoted between two positions.
CN201680035966.6A 2015-05-07 2016-05-06 Aerofoil fan air blower and vacuum plant Pending CN107708405A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
US201562158265P true 2015-05-07 2015-05-07
US62/158,265 2015-05-07
US15/096,695 2016-04-12
US15/096,695 US20160324380A1 (en) 2015-05-07 2016-04-12 Axial fan blower and vacuum
PCT/US2016/031153 WO2016179473A1 (en) 2015-05-07 2016-05-06 Axial fan blower and vacuum

Publications (1)

Publication Number Publication Date
CN107708405A true CN107708405A (en) 2018-02-16

Family

ID=57218405

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201680035966.6A Pending CN107708405A (en) 2015-05-07 2016-05-06 Aerofoil fan air blower and vacuum plant

Country Status (4)

Country Link
US (1) US20160324380A1 (en)
EP (1) EP3291665A4 (en)
CN (1) CN107708405A (en)
WO (1) WO2016179473A1 (en)

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CN109594511A (en) * 2018-11-16 2019-04-09 常州信息职业技术学院 A kind of blowing device with infrared detection
WO2021017027A1 (en) * 2019-07-31 2021-02-04 傲基科技股份有限公司 Suction generation device and dust collector

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EP3225742B1 (en) * 2014-11-28 2020-02-19 Positec Power Tools (Suzhou) Co., Ltd Air blower and blower/vacuum apparatus
CN109208519B (en) * 2017-06-29 2020-11-17 苏州宝时得电动工具有限公司 Blowing and sucking machine
CN109208518B (en) * 2017-06-29 2020-08-14 苏州宝时得电动工具有限公司 Blowing and sucking machine
US10897858B2 (en) * 2017-11-30 2021-01-26 Tti (Macao Commercial Offshore) Limited Blower/mulcher
WO2019109278A1 (en) * 2017-12-06 2019-06-13 Husqvarna Ab Blower with improved balance and construction

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CN103534413A (en) * 2011-04-07 2014-01-22 佩朗股份有限公司 Standalone portable electric blower with variable air exit speed

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Publication number Priority date Publication date Assignee Title
CN109594511A (en) * 2018-11-16 2019-04-09 常州信息职业技术学院 A kind of blowing device with infrared detection
WO2021017027A1 (en) * 2019-07-31 2021-02-04 傲基科技股份有限公司 Suction generation device and dust collector

Also Published As

Publication number Publication date
EP3291665A4 (en) 2019-03-27
WO2016179473A1 (en) 2016-11-10
US20160324380A1 (en) 2016-11-10
EP3291665A1 (en) 2018-03-14

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Application publication date: 20180216