CN102995589B - Blowing-suction machine - Google Patents

Blowing-suction machine Download PDF

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Publication number
CN102995589B
CN102995589B CN201110278092.6A CN201110278092A CN102995589B CN 102995589 B CN102995589 B CN 102995589B CN 201110278092 A CN201110278092 A CN 201110278092A CN 102995589 B CN102995589 B CN 102995589B
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China
Prior art keywords
switch
host shell
pressure
connecting portion
control member
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CN201110278092.6A
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CN102995589A (en
Inventor
格雷厄姆·格哈德
沃伦·布朗
哈利·索默
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Positec Power Tools Suzhou Co Ltd
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Positec Power Tools Suzhou Co Ltd
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Abstract

The invention discloses a blowing-suction machine, which comprises a main machine shell, a blowing-suction accessory which is detachably connected to the main machine shell, a motor which is arranged inside the main machine shell, a fan which is driven the motor to rotate, a switch for controlling the rotation of the motor, a control mechanism for starting the switch and an operating handle, wherein the switch is movably arranged relative to the main machine shell, the control mechanism comprises a propping part and a control member which is movably arranged on the operating handle, only when the blowing-suction accessory is connected to the main machine shell, the control member can operably control the switch and the propping part to interact each other and can trigger the switch. The switch control mechanism is simple in structure and safe and reliable to operate.

Description

Blower
Technical field
The present invention relates to a kind of hand-hold operating apparatus, especially a kind of portable blower.
Background technology
U.S. Patent Bulletin number is that the patent specification of US5604954 discloses a kind of blower being provided with safety interlock, between the volute that this safety interlock is arranged at accommodation fan and main case, volute is connected with main case is detachable, when volute is by dirt bits blockings such as branches and leaves, need to clear up volute and fan in time and safeguard; Safety interlock comprises a trigger button, when volute is connected with main case, trigger button could carry out work by actuatable switches starter motor, and a locking member, for when the motor is energized volute being locked in main case, make blower motor under normal operation, volute cannot unload from main case; Volute is once unload from main case, and switch just cannot starter motor work.
Can slide arbitrarily between primary importance and the second place under the state that the trigger button of above-mentioned safety interlock is separated with main case at volute, only have when trigger button is positioned at primary importance, volute just can be installed and connected in main case, when trigger button is positioned at the second place, volute and host shell are installed to connect and are hindered, and this brings inconvenience to the assembling of volute and main case; This safety interlock inner body is more, complex structure.In addition, carry out work because its blowpipe annex and suction pipe fittings alternatively can only be connected to host shell, and safety interlock is arranged between annex and main case, therefore blows, when inhaling operation transformation, accessory replacing is frequent, is unfavorable for increasing work efficiency; And blowpipe, suction pipe such be arranged so that annex is more, be also unfavorable for storing of blower.
Summary of the invention
For overcoming the deficiencies in the prior art, the invention provides a kind of blower, it has simple, safe and reliable, the easy to operate switching control mechanism of structure.
The present invention is achieved in that a kind of blower, comprise: host shell, removably be connected to the pressure-vaccum annex of host shell, be positioned at the motor of host shell, the fan rotated is driven by motor, control the switch that motor rotates, for the controlling organization of trigger switch, and operating grip, the relative host shell activity of described switch is arranged, described controlling organization comprises butting section, and be arranged at the control member of operating grip actively, only when pressure-vaccum annex is connected to host shell, described control member operationally gauge tap and described butting section interacts and trigger switch.
Described switch relation control part is fixedly installed.Described switch also can be arranged to the activity of relation control part and arrange.
Described butting section is fixedly installed on pressure-vaccum annex.Described butting section is also movable to be arranged in host shell.Described butting section also can be fixedly installed on control member.
Described control member is arranged on operating grip slidably.Described control member is also arranged on operating grip rotor.
Described control member comprises the operating portion for operator Non-follow control, can the guide part of movement in host shell, and for being fixedly connected with the support portion of switch.
Described operating grip comprises the first connecting portion be arranged on host shell, and is arranged at the second connecting portion on pressure-vaccum annex, and described control member is arranged at the first connecting portion.Safety locking mechanism is provided with between described first connecting portion and the second connecting portion, described safety locking mechanism has a locked position and an off-position, when pressure-vaccum annex is connected to host shell, described safety locking mechanism is in locked position, when safety locking mechanism is in off-position, described pressure-vaccum annex can be dismantled from host shell, and described switch disconnects automatically, stops the control to motor.Described safety locking mechanism comprises the locking member being movably set in the first connecting portion, and described locking member selectively engages with pressure-vaccum annex and locks or discharge.
Beneficial effect of the present invention: because blower have employed the structure of switch relative host shell activity setting, make switching control mechanism structure simple; Again owing to only having when pressure-vaccum annex is connected to host shell, switch just can be triggered device trigger, therefore ensure that the safety of operation; The control member convenient operation being arranged at operating grip controls.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described:
Fig. 1 is the front view of first embodiment of the invention blower.
Fig. 2 is the sectional view of first embodiment of the invention pressure-vaccum owner apparent direction.
Structural representation when Fig. 3 is pressure-vaccum annex and the main case released state of first embodiment of the invention.
Fig. 4 is the close-up schematic view of B1 mark in Fig. 2, and now pressure-vaccum annex is not installed on host shell.
Fig. 5 is the close-up schematic view of B1 mark in Fig. 2, and now pressure-vaccum annex is installed on host shell.
The close-up schematic view of B1 mark in Fig. 6 Fig. 2, now pressure-vaccum annex is in place in host shell, and mobile control member is used for trigger switch.
Structural representation when Fig. 7 is pressure-vaccum annex and the main case released state of second embodiment of the invention blower.
Fig. 8 is the pressure-vaccum annex of second embodiment of the invention blower structural representation when being installed on main case.
Fig. 9 is the partial enlargement cross-sectional schematic of B2 mark in Fig. 8, and now pressure-vaccum annex is in place in host shell, and mobile control member is used for trigger switch.
Figure 10 is the partial enlargement cross-sectional schematic of third embodiment of the invention blower.
Wherein:
1-blower 10-pressure-vaccum annex 20-safety locking mechanism
2-host shell 11-aspiration channel 21-locking member
2a-motor shell 11a-air intake 22-locking bar
2b-volute 12-blower 22a-press section
3-motor 12a-air outlet 22b-hook portion
4-fan 14a-main part 22c-top bevel
5-operating grip 14b-kink 25,26-elastic component
5a-first connecting portion 15-dust outlet tube 27-tie point
5b-second connecting portion 16-adjusting device 28-control member
6-wire 17-pressure-vaccum switching mechanism 28a-operating portion
7a-suction pipe interface 17a-control knob 28b-guide part
7b-blowpipe interface 17b-regulates turnover panel 28c-support portion
8-tube wall opening 18-switch 31-engaging piece
9-guiding device 18a-switch contact 31a-slope
Z1-main part axial line 18b-switch triggering part 32,32a-butting section
Z2-kink axial line 19a-groove 32b-protuberance
β-bending angle 19b-projection 33-limited post
X1-first connecting portion axial line Y-axle center of motor line 34-contact surface
X2-second connecting portion axial line P1-arrow direction indication P2-arrow direction indication
Detailed description of the invention
Shown in Figure 1, blower 1 comprises operating grip 5, host shell 2, and be removably connected to the pressure-vaccum annex 10 of host shell 2, wherein host shell 2 comprises the motor shell 2a holding the motor 3 and volute 2b holding fan 4, the impeller of fan 4 has the function of pulverizing under High Rotation Speed to leaf, motor shell 2a is fixedly connected with volute 2b, the rear end of motor shell 2a connects the wire 6 that promising motor 3 provides power supply, the lower end of volute 2b is connected to a dust outlet tube 15, fan 4 can under the driving effect of motor 3 High Rotation Speed produce Push-pull Flow in volute 2b, pressure-vaccum annex 10 is removably connected by safety locking mechanism 20 and host shell 2, and pressure-vaccum annex 10 comprises aspiration channel 11 and blower 12, and wherein aspiration channel 11 end arranges air intake 11a, and blower 12 end is provided with air outlet 12a.Host shell 2 is provided with the first connecting portion 5a of operating grip 5, pressure-vaccum annex 10 is provided with the second connecting portion 5b of operating grip 5, first connecting portion 5a is connected to the top of motor shell 2a and has and connect end, second connecting portion 5b is then connected to the top of aspiration channel 11 and has and connect end, first connecting portion 5a is consistent with the second connecting portion 5b bearing of trend, first connecting portion 5a has the first connecting portion axial line X1, second connecting portion 5b has the second connecting portion axial line X2, when pressure-vaccum annex 10 is connected to host shell 2, first connecting portion 5a connects end and connects with the second connecting portion 5b the integral operational handle 5 held and dock and form longitudinal extension, now the first connecting portion axial line X1 and the second connecting portion axial line X2 forms a level and smooth camber line.
With reference to shown in Fig. 1, Fig. 2, the pressure-vaccum switching mechanism 17 that position main body housing 2 being close to dust outlet tube 15 is arranged, it comprises the control knob 17a arranging host shell 2 outside, and be positioned at the adjustment turnover panel 17b of host shell 2 inside, as long as operator carries out regulable control 17a according to the direction indication marked, blower just can be made to change from inhaling between different mode of operation blowing.Rotate and regulate the solid line position shown in turnover panel 17b to Fig. 2, blower 1 is in blown work pattern, under the High Rotation Speed of fan 4, the inspiratory airflow produced as shown by the arrows in Figure 2 enters aspiration channel 11 by the air intake 11a of aspiration channel 11, the air-flow sucked is admitted to blower 12 after fan 4, finally blows out in air outlet 12a; In order to embody the air velocity blown out from air outlet 12a under blow mode, the cross section of usual air outlet 12a arranges the cross section being far smaller than air intake 11a, and the cross section of blower 11 has a process of successively decreasing gradually along its bearing of trend.Rotate and regulate the dotted line position shown in turnover panel 17b to Fig. 2, blower 1 is in air-breathing mode, and branches and leaves, dust are same as air intake together with charge air flow one and are inhaled into aspiration channel 11, is admitted to dust leg 15 by after the impeller pulverizing of fan 4.Blower 1 is under air-breathing, these two kinds different mode of operations of blowing, due to the impact into and out of air-flow, blower 1 overall weight and position of centre of gravity all can change, and now operator finds most suitable mode of operation by selecting or adjusting in the different grip position of the first grip part 5a.
In the preferred embodiments of the present invention, aspiration channel 11 is fixedly connected with blower 12, and blower 12 is positioned at the downside of aspiration channel 11; When blower 1 is in running order, pressure-vaccum annex 10 is connected to host shell 2, aspiration channel 11 and blower 12 extend to fuselage side, and its bearing of trend is almost parallel, and the bearing of trend of dust outlet tube 15 is substantially vertical with the bearing of trend of aspiration channel 11 and blower 12; Aspiration channel 11 is provided with the main part 14a extended along main part axial line Z1 in bearing of trend, main part 14a end arranges kink 14b, kink 14b has kink axial line Z2, arrange in bending angle β between the main part axial line Z1 of kink axial line Z2 and aspiration channel, the setting of this bending angle β is advisable with the obtuse angle between 90 to 180 degree, and the scope that arranges of the development length of kink 14b is between 5mm to 1m; The development length of blower 12 is large to roughly concordant with the crooked place of aspiration channel 11, and kink 14b is arranged so that aspiration channel 11 is under the condition meeting safe length, and the overall development length of aspiration channel 11 reduces, and therefore the weight of complete machine also alleviate.For the blower that aspiration channel is straight tube, the position of centre of gravity of this blower is come to lower, and when user performs singlehanded cleaning operation under erectility, arm can freely stretch, and operates also more easily aobvious; Now the air intake 11a of aspiration channel 11 kink 14b is near ground, and the air intake 11a of its kink 14b and the air outlet 12a of blower 12 is held in same level substantially, as waited privileged sites under seat, the place of dust suction is needed for some, user does not need to bend over just can light complete operation, and drifting dust effect improves further.
With reference to shown in Fig. 2, Fig. 3, the top of blower 12 is provided with tube wall opening 8, blower 12 near tube wall opening 8 position is provided with a wind-speed adjusting device 16, for regulating the wind speed of the blowout from air outlet 12a under blowing pattern, an air-out guiding device 9 is also provided with between aspiration channel 11 and blower 12, for guiding the flow direction of the air-flow of overflowing from tube wall opening 8, making its blurred vision in order to avoid dirt bits are blowed to user by air escape or being inhaled in body.First connecting portion axial line X1 and the second connecting portion axial line X2 and axle center of motor line Y is positioned at same plane, the bearing of trend of operating grip 5 is consistent with the bearing of trend of pressure-vaccum annex 10 again simultaneously, it is longer that the length of the first connecting portion 5a arranges relative second connecting portion 5b, the such setting of first connecting portion 5a length is no matter person easy to use is blowing, or blow under mode of operation can fill order's hand operation, for the user of different height, the grip position being applicable to oneself can be selected from the first connecting portion 5a, thus grasp the center of gravity of blower, operation is made to become more light.And the second connecting portion 5b is mainly used in pressure-vaccum annex 10 to grip when main body shell 2 is dismantled or is installed and connected in main body shell 2.
With reference to shown in Fig. 2 to Fig. 4, safety locking mechanism 20 is arranged between host shell 2 and pressure-vaccum annex 10, and safety locking mechanism 20 comprises the locking member 21 being movably set in host shell 2, and selectable the engagement with pressure-vaccum annex 10 of locking member 21 is locked.Locking member 21 comprises locking bar 22, and supports the elastic component 25 of described locking bar 22.Locking bar 22 comprises hook portion 22b and protrudes from the press section 22a on host shell 2 surface, pressure-vaccum annex 10 is provided with engaging piece 31, when described pressure-vaccum annex 10 is installed on host shell 2, the hook portion 22b of locking bar 22 automatically engages locking with the engaging piece 31 of pressure-vaccum annex 10 under the effect of elastic component 25.Locking bar 22 is vertically arranged in host shell 1, and press section 22a is the top of locking bar 22, and for operating author by pressure-controlled, hook portion 22b is horizontally set at the middle part of locking bar 22, and wherein hook portion 22b is provided with top bevel 22c.Elastic component 25 in present embodiment adopts stage clip, to stretch in its accepting groove being supported in host shell 2 along collecting cell wall, and elastic component herein also can adopt other form certainly.Locking bar 22 is positioned on the operating grip 5 on host shell 2, and particularly, locking bar 22 is positioned at the medial extremity of operating grip 5 first connecting portion 5a, and operator can carry out operation easily and control when gripping first connecting portion 5a.Locking bar 22 has locked position and off-position, and when pressure-vaccum annex 10 is connected to host shell 2, described safety locking mechanism 20 is in locked position.The press section 22a of locking bar 22 is pressed to the off-position (with reference to Fig. 2) shown in dotted line when user overcomes the elastic component 25 active force direction P1 that follows the arrow, locking bar 22 produces displacement at vertical direction because of compression elastic piece 25 in host shell 2, now, when safety locking mechanism is in off-position, namely the hook portion 22b of locking bar 22 has thrown off with the engaging piece 31 of pressure-vaccum annex 10 and has engaged, and pressure-vaccum annex 10 can disassemble from host shell 2.Fig. 3 clearly show suction pipe interface 7a, the blowpipe interface 7b that host shell 2 is provided with for coordinating aspiration channel 11, blower 12 patches, wherein the bottom of blowpipe interface 7b is provided with projection 19a, the groove 19b that blower 12 appropriate section connected with blowpipe interface 7b is arranged, projection 19a and groove 19b can select to engage.
Pressure-vaccum annex 10 is fixedly installed engaging piece 31 and butting section 32, more specifically, butting section 32 and engaging piece 31 are all arranged at the second connecting portion 5b of operating grip 5, position adjacent with engaging piece 31 is in addition provided with slope 31a, butting section 32 is positioned at the below of engaging piece 31, and extend certain distance relatively blowing, in the direction of extension of aspiration channel 11,12.When pressure-vaccum annex 10 is installed on host shell 2 by needs, first the groove 19b of blower 12 is engaged with the bottom projection 19a of blowpipe interface 7b, like this, the weight of pressure-vaccum annex 10 just has a support, that is operator can this position of engagement as the pivot point of pressure-vaccum annex 10, first connecting portion 5a of holding operation handle 5, another grasped second connecting portion 5b make pressure-vaccum annex 10 rotate until be locked on host shell 2 by pressure-vaccum annex 10 to the direction near host shell 2 on the other hand.
Arrange for controlling the switch 18 that motor 3 rotates or stops in host shell 2, contact switch is arranged to by switch 18 in present embodiment, switch contact 18a is arranged on the surface of switch side, and the top of switch contact 18a flexibly arranges switch triggering part 18b.Controlling organization for starting switch 18 comprises the control member 28 be arranged at movably on operating grip 5, and butting section 32.In present embodiment, control member 28 flatly can be arranged on operating grip 5 first connecting portion 5a movably, thus handled easily person manually trigger switch 18.Switch 18 relation control part 28 is fixedly connected with.Control member 28 comprises the operating portion 28a for operator's Non-follow control, is positioned at the guide part 28b along the movement of operating grip 5 shell inner surface below operating portion 28a, and extends operating grip 5 enclosure interior and support portion 28c relatively-stationary with switch 18.Switch 18 is fixedly connected with control member 28 support portion 28c by securing member or alternate manner.
Shown in Fig. 5, when pressure-vaccum annex 10 is connected with host shell 2, the cavity of the first connecting portion 5a is inserted in the butting section 32 being arranged in the second connecting portion 5b first, then be that the hook portion 22b top bevel 22c of locking bar 22 contacts with engaging piece 31 slope 31a and fits, under the pivot action power of operator, hook portion 22b enters engaging piece 31 along slope 31a and is engaged with.Locking bar 22 under the moment that top bevel 22c contacts with slope 31a is subject to coming from the downward effect of pressure-vaccum annex 10, compression elastic piece 25 thus produce a downward displacement; While hook portion 22b engages with engaging piece 31, elastic component 25 resets, locking bar 22 produces a reverse displacement under elastic component 25 acts on, such locking bar 22 just replys its initial position, under elastic component 25 elastic reaction, hook portion 22b and engaging piece 31 are in position of engagement automatic locking, and such pressure-vaccum annex 10 is locked on host shell 2.
With reference to shown in Fig. 6, when operator follow the arrow P2 direction, direction the operating portion 28a of control member 28 is moved horizontally to the second place shown in dotted line by the primary importance shown in solid line time, guide part 28b moves to correspondingly position in operating grip 5 housing, now switch triggering part 18b and butting section 32 abutment action mutually, and impel switch triggering part 18b elastic deformation to oppress switch contact 18a, thus trigger switch 18 starter rotates.
With reference to shown in Fig. 7 to Fig. 9, it is the second embodiment of the present invention, wherein butting section 32a is arranged in body shell 2 actively, and be specifically arranged in the first connecting portion 5b of switch 18, the 32a upper and lower limited post 33 that arranges respectively in butting section is for limiting butting section 32a moving track.Move horizontally between the primary importance that butting section 32a can represent at dotted line shown in Fig. 9 and the second place shown in solid line, when butting section 32a is in primary importance, switch 18 can not trigger, and when butting section 32a is in the second place, switch 18 can be triggered.Butting section 32a is provided with wider contact surface 34 away from one end of switch 18, for when pressure-vaccum annex 10 is installed on host shell 2, the protuberance 32b and the butting section 32a contact surface 34 that are arranged at operating grip 5 second connecting portion 5b tail end lean, thus promotion butting section 32a moves to the second place by primary importance.When operator follow the arrow P2 direction, direction the operating portion 28a of control member 28 is moved horizontally to the second place shown in solid line by the primary importance shown in dotted line time, guide part 28b moves to correspondingly position in the first connecting portion 5a, now switch triggering part 18b and the mutual abutment action of butting section 32a, and impel switch triggering part 18b elastic deformation to oppress switch contact 18a, thus trigger switch 18 starter 3 rotates.
With reference to shown in Figure 10, be the third embodiment of the present invention, the support portion 28c of its breaker in middle 18 relation control part 28 is flexibly connected.Support portion 28c is provided with the elastic component 26 being positioned at notch, elastic component 26 is with the lower surface of its apical support switch 18.Switch 18 is pivotally connected to support portion 28c by tie point 27, is flexibly supported on the 28c of support portion under the effect of elastic component 26 simultaneously.When operator follow the arrow P2 direction, direction the operating portion 28a of control member 28 is moved horizontally to the second place shown in solid line by the primary importance shown in dotted line time, guide part 28b moves to correspondingly position in the first connecting portion 5a, now switch triggering part 18b and butting section 32 abutment action mutually, Simultaneous Switching 18 is subject to the relative tie point 27 of abutment action power and turns over a minute angle, compression elastic piece 26 makes it produce certain distortion, Simultaneous Switching trigger member 18b elastic deformation compressing switch contact 18a, thus trigger switch 18 starter 3.Switch 18 connection such with support portion 28c is arranged, makes when operating control member 28 operating portion 28a moving afterwards, uses the rear arm of force can be relatively little, operates also more laborsaving.
Certainly, those skilled in the art it is contemplated that, want to make switch 18 host shell 2 activity setting relatively, switch 18 can alternatively arrange on the position of butting section 32a in a second embodiment, such switch 18 can move between primary importance and the second place, when in said first position, switch 18 can not be triggered, when pressure-vaccum annex 10 is installed on host shell 2, the protuberance 32b being arranged at operating grip 5 second connecting portion 5b tail end can lean with switch 18, thus pull switch 18 moves to the second place by primary importance, namely only when switch 18 is in the second place, starting switch 18 is got final product by being fixedly installed a butting section of conflicting with switch contact 18a in the 28c position, support portion of control member 28.Those skilled in the art it is also conceivable that control member 28 except arranging the first operating portion 5a of host shell 2 with moving horizontally, and the mode of pivot can also be connected to the first operating portion 5a of host shell 2.As long as when pressure-vaccum annex 10 is connected to host shell, the switch 18 being movably set in host shell 2 can be triggered by operation control member, are all the claimed design concepts of the present invention.

Claims (12)

1. a blower, comprise: host shell, removably be connected to the pressure-vaccum annex of host shell, be positioned at the motor of host shell, the fan rotated is driven by motor, control the switch that motor rotates, for the controlling organization of trigger switch, and operating grip, it is characterized in that: the relative host shell activity of described switch is arranged, described controlling organization comprises butting section, and be arranged at the control member of operating grip actively, only when pressure-vaccum annex is connected to host shell, described control member operationally gauge tap and described butting section interacts and trigger switch.
2. blower according to claim 1, is characterized in that: described switch relation control part is fixedly installed.
3. blower according to claim 1, is characterized in that: described switch relation control part activity is arranged.
4. blower according to claim 1, is characterized in that: described butting section is fixedly installed on pressure-vaccum annex.
5. blower according to claim 1, is characterized in that: described butting section is movably set in host shell.
6. blower according to claim 1, is characterized in that: described butting section is fixedly installed on control member.
7. blower according to claim 1, is characterized in that: described control member is arranged on operating grip slidably.
8. blower according to claim 1, is characterized in that: described control member is pivotally arranged on operating grip.
9. blower according to claim 1, is characterized in that: described control member comprises the operating portion for operator Non-follow control, can the guide part of movement in host shell, and for being fixedly connected with the support portion of switch.
10. blower according to claim 1, is characterized in that: described operating grip comprises the first connecting portion be arranged on host shell, and is arranged at the second connecting portion on pressure-vaccum annex, and described control member is arranged at the first connecting portion.
11. blowers according to claim 10, it is characterized in that: between described first connecting portion and the second connecting portion, be provided with safety locking mechanism, described safety locking mechanism has a locked position and an off-position, when pressure-vaccum annex is connected to host shell, described safety locking mechanism is in locked position, and when safety locking mechanism is in off-position, described pressure-vaccum annex can be dismantled from host shell, described switch disconnects automatically, stops the control to motor.
12. blowers according to claim 11, is characterized in that: described safety locking mechanism comprises the locking member being movably set in the first connecting portion, and described locking member selectively engages with pressure-vaccum annex and locks or discharge.
CN201110278092.6A 2011-09-19 2011-09-19 Blowing-suction machine Active CN102995589B (en)

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