CN103156548B - Blower - Google Patents
Blower Download PDFInfo
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- CN103156548B CN103156548B CN201110412966.2A CN201110412966A CN103156548B CN 103156548 B CN103156548 B CN 103156548B CN 201110412966 A CN201110412966 A CN 201110412966A CN 103156548 B CN103156548 B CN 103156548B
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- host shell
- brake
- pressure
- blower
- switch
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers
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Abstract
The invention discloses 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, driven the fan rotated by motor, control the switching device that motor rotates, for the controlling organization of starting switch device, be provided with the braking mechanism being connected to motor output shaft in described host shell, when described pressure-vaccum annex is separated with host shell, described braking mechanism operationally controls described fan and stops the rotation.Braking mechanism be arranged so that blower operate time safer.
Description
Technical field
The present invention relates to a kind of hand-hold operating apparatus, especially a kind of blower.
Background technology
Existing blower, usually by blower, aspiration channel and main body separate design, when blower uses as hair-dryer by needs, just blower is installed on main body, when blower uses as vacuum cleaner by needs, blower is dismantled from main body, then aspiration channel and dust leg are installed on main body.Also blower and sweep-up pipe one being connected of having is set to pressure-vaccum annex, during duty, pressure-vaccum annex is installed on main body, and when off working state, pressure-vaccum annex can be deposited separately from main body dismounting, and reduces collection volume.Be generally used for fan under cleaned model when High Rotation Speed with crushing function, enter in dust bag by dust leg after the dusts such as the branches and leaves sucked from aspiration channel can being pulverized, therefore on the impeller of fan, be provided with sharp-pointed cutter dentalation.Thisly to blow, aspiration channel and the detachable connection of main body design; make to blow, aspiration channel can often can be disassembled; if and the fan being contained in main body during dismounting is still rotating; operator will be easy to touch fan and cause injury, and therefore this blower may exist certain potential safety hazard.
U.S. Patent Bulletin number is that the patent specification of US5604954 discloses a kind of blower being provided with safety locking mechanism, between the volute that this safety locking mechanism 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 locking mechanism comprises a trigger button, when volute is connected with main case, trigger button could carry out work by actuatable switches starter, and a locking member, for when the motor is activated volute being locked in main case, make the motor of blower when normal work, volute cannot be dismantled from main case; First by mobile trigger button, blower switch must be disconnected, volute could be dismantled from main body, but the moment that switch disconnects, due to its effect of inertia, the motor of drive fan High Rotation Speed still can keep certain rotation speed, and if operator open volute when fan still rotates injured than being easier to.
Summary of the invention
For overcoming the deficiencies in the prior art, the invention provides a kind of safe and reliable blower.
For achieving the above object, technical scheme of the present invention is: a kind of blower, comprise: host shell, be removably 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 switching device that motor rotates, for the controlling organization of trigger switch device, in described host shell, be provided with braking mechanism, when described pressure-vaccum annex is separated with host shell, described braking mechanism operationally controls described fan and stops the rotation.
Preferably, described blower is provided with operating grip, described controlling organization is arranged on operating grip, only have when pressure-vaccum annex is connected to host shell, described controlling organization could trigger described switching device, when pressure-vaccum annex is separated with host shell, described switching device disconnects the control to motor.
Preferably, be provided with safety locking mechanism between described pressure-vaccum annex and host shell, described safety locking mechanism comprises the locking member being movably set in host shell, and described locking member selectively engages with pressure-vaccum annex and locks.
Preferably, described switching device comprises the switch be connected with controlling organization, described pressure-vaccum annex is provided with the supporter for triggering described switch.
In another kind of preferred version, described switching device comprises and is series at the first switch in host shell and second switch.
Preferably, described controlling organization comprises the first flip flop equipment being arranged at operating grip and the second flip flop equipment being arranged at pressure-vaccum annex, and when described pressure-vaccum annex is connected to host shell, described second flip flop equipment triggers described second switch.
Preferably, described operating grip comprises the first operating portion being arranged at host shell, and is arranged at the second operating portion of pressure-vaccum annex, and described first flip flop equipment is arranged at the first operating portion.
Preferably, described pressure-vaccum annex comprises blower and aspiration channel, and wherein aspiration channel is positioned at the top of blower, and described second operating portion is provided with the stiff end be connected with aspiration channel, and to removably connect with the first operating portion connect end, described second flip flop equipment is arranged at and connects end.
Preferably, described second switch is arranged near connecting in the host shell of end, described host shell is arranged and stretches into host shell for the second flip flop equipment and trigger the perforate of second switch.
Preferably, described motor has motor output shaft, and described braking mechanism comprises the brake disc being connected to motor output shaft, and the brake mount that relative host shell is fixedly installed.
Preferably, described brake disc is provided with the brake block of pivotable, described brake block is selectively separated with described brake mount or abuts.
Preferably, described brake block quantity comprises two arc brake sheets respectively with head end and tail end, is connected between another tail end of the head end and described two arc brakes of one of described two arc brake sheets by elastic component.
Preferably, described brake disc is provided with peripheral wall, and described brake block lays respectively in being oppositely arranged inside peripheral wall, and described brake block is respectively equipped with the first arc brake face, and described brake mount is provided with the second arc brake face relative with described first arc brake face.
In the preferred scheme of another kind, described brake disc comprises with motor output shaft without the first rolling disc in relative rotation, and rotating second rolling disc of motor output shaft relatively, is provided with elastic component between described first rolling disc and the second rolling disc.
Preferably, described first rolling disc is provided with the first slope, and described second rolling disc arranges second slope relative with the first slope, and the first slope selectively engages with the second slope or is separated.
Preferably, described brake mount is provided with brake block, described first rolling disc is provided with the brake lining relative with brake block, and when described first slope selectively engages with the second slope or is separated, described brake lining correspondingly abuts with brake block or is separated.
Compared with prior art, blower of the present invention, by arranging braking mechanism in blower host shell, and when making pressure-vaccum annex be separated with host shell, braking mechanism operationally controls fan and stops the rotation.Thus making operator when dismantling pressure-vaccum annex or pressure-vaccum annex drops from host shell, fan can not cause injuring operator because of still keeping rotating, and enhances the processing safety of blower.
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 pressure-vaccum owner apparent direction in Fig. 1.
Fig. 3 is the enlarged diagram of the safety locking mechanism marking B1 in Fig. 2, and now pressure-vaccum annex is not installed on host shell.
Fig. 4 is the enlarged diagram of the safety locking mechanism marking B1 in Fig. 2, and now pressure-vaccum annex is just installed on host shell.
Fig. 5 is the enlarged diagram of the safety locking mechanism marking B1 in Fig. 2, and now pressure-vaccum annex is in place in host shell, and switch is in can trigger state.
Fig. 6 is the enlarged diagram of the braking mechanism marking B2 in Fig. 2.
Fig. 7 is the sectional view along A-A direction braking mechanism in Fig. 6.
Fig. 8 is the sectional view of the main apparent direction of second embodiment of the invention blower.
Fig. 9 is the enlarged diagram of the safety locking mechanism marking B3 in Fig. 8.
Figure 10 is the structural representation of safety locking mechanism when pressure-vaccum annex is not connected to host shell in Fig. 9.
Figure 11 is the structural representation of safety locking mechanism when pressure-vaccum annex is installed on host shell in Fig. 9, and now switch is not in trigger state.
Figure 12 is the schematic diagram of safety locking mechanism when pressure-vaccum annex is installed and connected in host shell in Fig. 9, and now switch is in trigger state.
Figure 13 is structural representation when pressure-vaccum annex and host shell are in released state in Fig. 8.
Figure 14 is the braking mechanism schematic diagram of third embodiment of the invention blower, and now braking mechanism is in on-position.
Figure 15 is the schematic diagram that in Figure 14, braking mechanism is in non-brake state.
Wherein:
1,1 '-blower 139a-suction pipe interface 32-supporter
10-pressure-vaccum annex 139b-blowpipe interface 4-fan
11-aspiration channel 140-second flip flop equipment 40,40 '-braking mechanism
11a-air inlet 141-projection 41-brake disc
12-blower 141 '-groove 41a-peripheral wall
12a-air outlet 142-perforate 41b-bottom surface
14a-main part 2-host shell 42-brake block
14b-kink 2a-motor shell 42a-brake lining
15-dust outlet tube 2b-volute 43a-head end
16-wind-speed adjusting device 20,20 '-safety locking mechanism 43b-tail end
17-pressure-vaccum switching mechanism 21-locking member 44-perforate
17a-control knob 22-locking bar 45-brake mount
17b-regulates turnover panel 22a-press section 46-annular wall
18-switch 22b-hook portion 46a-brake lining
18a-switch contact 22c-top bevel 47-extension spring
18b-switch triggering part 241-brake disc 48-pivot
117-first switch 242-first rolling disc 49-receiving space
118-overhanging briquetting 242a-first slope 5-operating grip
119-engaging piece 243-second rolling disc 5a-first operating portion
121-first flip flop equipment 243a-second slope 5b-second operating portion
121a-switch contact 243b-brake lining 6-wire
121b-first stop portion 245-brake mount 7-motor drive shaft shaft
121c-second stop portion 245a-brake block 8-tube wall opening
122-slide block 248-extension spring 9-guider
122a-convex shoulder 25,26-elastic component β-bending angle
122b-stop portion 28-control piece X1-first operating portion axial line
123-spring 28a-operating portion X2-second operating portion axial line
124-locking mechanism 28b-guide part Y-axle center of motor line
28c-support portion, 124a-press section P1, P2, P3-arrow direction indication
124b-hook portion 3-motor Z1-main part axial line
125-spring 31-engaging piece Z2-kink axial line
138-second switch 31a-slope
Detailed description of the invention
Shown in Fig. 1, Fig. 2, blower 1 comprises host shell 2, is removably connected to the pressure-vaccum annex 10 of host shell 2, and operating grip 5.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, motor 3 is provided with motor output shaft 7, the lower end of volute 2b is connected to a dust outlet tube 15, braking mechanism 40 is arranged at one end of motor output shaft 7, motor output shaft 7 is provided with fan 4 relative to the other end of braking mechanism 40, fan 4 High Rotation Speed produce Push-pull Flow in volute 2b under the driving effect of motor 3.Pressure-vaccum annex 10 is removably connected by safety locking mechanism 20 and host shell 2.Pressure-vaccum annex 10 comprises aspiration channel 11 and blower 12, and wherein aspiration channel 11 end arranges air inlet 11a, and blower 12 end is provided with air outlet 12a.Host shell 2 is provided with the first operating portion 5a of operating grip 5, pressure-vaccum annex 10 is provided with the second operating portion 5b of operating grip 5.First operating portion 5a is connected to the top of motor shell 2a and has and connect end, the stiff end that the top having that the second operating portion 5b is then connected to aspiration channel 11 is connected with aspiration channel 11 and removably connect with the first operating portion 5a connect end.First operating portion 5a is consistent with the second operating portion 5b bearing of trend, first operating portion 5a has the first operating portion axial line X1, second operating portion 5b has the second operating portion axial line X2, when pressure-vaccum annex 10 is connected to host shell 2, first operating portion 5a connects end and connects to hold to dock with the second operating portion 5b and form integral operational handle 5 extending longitudinally, and now the first operating portion axial line X1 and the second operating portion axial line X2 forms a level and smooth camber line.
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 being shown in product, blower just can be made to change from inhaling between different mode of operation blowing.Dotted line position shown in rotating control knob 17a to Fig. 1, turnover panel 17b is regulated to rotate to the corresponding dotted line position shown in Fig. 2, blower 1 is in air-breathing mode, branches and leaves, dust are same as air inlet together with charge air flow one and are inhaled into aspiration channel 11, are admitted to dust leg 15 by after the impeller pulverizing of fan 4.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 inlet 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 inlet 11a, and the cross section of blower 11 has a process of successively decreasing gradually along its bearing of trend.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 inlet 11a of aspiration channel 11 kink 14b is near ground, and the air inlet 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, the top of blower 12 is provided with tube wall opening 8, and the 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.Also be provided with an air-out guider 9 between aspiration channel 11 and blower 12, for guiding the flow direction of the air-flow of overflowing from tube wall opening 8, make its blurred vision in order to avoid dirt bits are blowed to user by air escape or being inhaled in body.First operating portion axial line X1 and the second operating 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 operating portion 5a arranges relative second operating portion 5b, the such setting of first operating portion 5a length is no matter person easy to use is blowing, or blow under mode of operation can fill order's hand operated, for the user of different height, the grip position being applicable to oneself can be selected from the first operating portion 5a, thus grasp the center of gravity of blower, operation is made to become more light.And the second operating 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, Fig. 3, safety locking mechanism 20 is arranged between host shell 2 and pressure-vaccum annex 10.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 the parts that elastic component 25 herein also can adopt other to have similar functions are certainly replaced.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 operating portion 5a, and operator can carry out operation easily and control when gripping first operating 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 20 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.
Pressure-vaccum annex 10 is fixedly installed engaging piece 31 and supporter 32, more specifically, supporter 32 and engaging piece 31 are all arranged at the second operating portion 5b of operating grip 5, position adjacent with engaging piece 31 is in addition provided with slope 31a, supporter 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.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 piece 28 be arranged at movably on operating grip 5, and supporter 32.In present embodiment, control piece 28 flatly can be arranged on operating grip 5 first operating portion 5a movably, thus handled easily person manually trigger switch 18.Switch 18 relation control part 28 is fixedly connected with.Control piece 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 3 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 piece 28 support portion 28c by securing member or alternate manner.
Shown in Fig. 4, when pressure-vaccum annex 10 is connected with host shell 2, first the supporter 32 being arranged in the second operating portion 5b inserts the cavity of the first operating portion 5a, 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 auto lock, and such pressure-vaccum annex 10 is locked on host shell 2.
With reference to shown in Fig. 5, when operator follow the arrow direction P2 the operating portion 28a of control piece 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 supporter 32 abutment action mutually, and impel switch triggering part 18b elastic deformation to oppress switch contact 18a, thus trigger switch 18 starter 3 rotates.And if pressure-vaccum annex 10 is not installed on host shell 2 or pressure-vaccum annex 10 is separated with main casing 2, switch contact 18a can automatically reply and switch 18 disconnects, and that is switching device is disconnected and controls motor 3.Certainly, the device that control trigger switch 18 in the present embodiment starts also can adopt induction type or touch control device, after pressure-vaccum annex 10 is connected to host shell 2, this control device can sense that pressure-vaccum annex 10 is in place, as long as operator can open switch 18 by touching this control device, and be separated with host shell 2 when pressure-vaccum annex 10, this control device can cut-off switch 18 automatically, braking mechanism 40 generation braking action.
With reference to shown in Fig. 6, Fig. 7, braking mechanism 40 comprises the brake disc 41 and brake mount 45 that are oppositely arranged, and wherein brake disc 41 is connected on motor output shaft 7 without relative rotation, and brake mount 45 is fixedly connected in host shell 2.The annular peripheral 41a that brake disc 41 comprises bottom surface 41b and extended to side by bottom surface 41b, wherein peripheral wall 41a and bottom surface 41b surrounds a receiving space 49 jointly, and the inner side of peripheral wall 41a is movably set with brake block 42.The quantity of the brake block 42 in the present embodiment comprises two, and two brake blocks 42 are curved and just to setting on brake disc 41.Brake mount 45 is arranged to round, this round is provided with the annular wall 46 extending into receiving space 49 to brake disc 41 direction, and the peripheral surface of this annular wall 46 is provided with brake lining 46a.The brake lining 42a of two arc brake sheets 42 and brake lining 46a of brake mount 45 is oppositely arranged.Certainly, as required, brake lining 42a, 46a also can adopt skid to substitute.
Two arc brake sheets 42 have head end 43a and tail end 43b respectively, head end 43a are arranged perforate 44, and tail end 43b is then connected and fixed on the pivot 48 of brake disc 41 respectively, are provided with elastic component between the head end 43a of brake block 42 and tail end 43b.Elastic component in the present embodiment is extension spring 47, and certain extension spring 47 also can be replaced with the elastomeric element that other has similar functions.Extension spring 47 one end is connected to brake block 42 head end 43a by perforate 44, and the other end is connected on pivot 48.Inoperative situation, two brake blocks be oppositely arranged 42 are under the pulling force effect of extension spring 47, brake block 42 brake lining 42a is close to the brake lining 45 of brake mount 45, that is, be in non-started state at motor 3, brake block 42 brake lining 42a mutually abuts with the brake lining 45 of brake mount 45 and is in on-position.When motor 3 is started rotation by control, then namely brake disc 41 goes out defeated 7 with axle and rotates, now brake block 42 overcomes extension spring 47 active force and rotates to brake lining 45 direction of departing from brake mount 45 relative to respective pivot 48 respectively under centrifugal action, the brake lining 45 of brake block 42 brake lining 42a and brake mount 45 is separated from each other, namely on-position is removed, and therefore the setting of braking mechanism 40 does not affect the normal operation of motor 3.Motor 3 is when running up, once the switch 18 controlling motor 3 rotation is disconnected, the rotating speed of motor 3 is namely by high step-down, now, brake block 42 fades away due to centrifugal force, simultaneously by the pulling force effect of extension spring 47 near brake mount 45 brake lining 46a direction pivotable, until abut with brake mount 45 brake lining 46a and produce and brake.Therefore when pressure-vaccum annex 10 is from host shell 2 dismounting or when being separated, switch 18 disconnects automatically, motor output shaft 7 can be braked at short notice, thus the fan 4 driven by motor output shaft 7 can be made to stop operating, avoid operator easily to touch the risk of rotary fan 4 when dismantling pressure-vaccum pipe.
With reference to shown in Fig. 8, Fig. 9, be the second embodiment of the present invention, in the blower 1 ' wherein in the second embodiment and the first embodiment, blower 1 structure is substantially similar, and therefore identical parts represent with same label and do not repeat.Difference is mainly syndeton between pressure-vaccum annex 10 and host shell 2 and braking mechanism 40 ', and different structures represents with different labels.Be provided with the switching device for controlling motor 3 in host shell 2, the switching device in the present embodiment comprises the first switch 117 and second switch 138 that are arranged in series.First switch 117 is arranged in the host shell 2 of operating grip 5, operating grip 5 is provided with the first flip flop equipment 121 for triggering the first switch 117.Second switch 138 is arranged at and connects in the host shell 2 of end near pressure-vaccum annex 10, pressure-vaccum annex 10 connect the second flip flop equipment 140 held and be provided with for triggering second switch 138.Braking mechanism 40 ' is arranged at one end relative with fan 4 on motor output shaft 7.
With further reference to Figure 10, Figure 11 and Figure 12, safety locking mechanism 20 ' comprises the first flip flop equipment 121, locking mechanism 124 and the slide block 122 that opposite handle 5 activity is arranged.Wherein the top of the first flip flop equipment 121 protrudes from the surface of handle 5 housing, and person easy to use operates control.First flip flop equipment 121 can be moved to the second place of triggering first switch 117 shown in Figure 12 by operator according to arrow P in Figure 11 3 direction indication.First flip flop equipment 121 comprises switch contact 121a, the first stop portion 121b, the second stop portion 121c.Locking mechanism 124 is provided with the press section 124a protruding from handle 5 housing, and the hook portion 124b for engaging with pressure-vaccum annex 10, the lower end of locking mechanism 124 is provided with spring 125, and this spring 125 can make locking mechanism 124 move up and down in handle 5 housing under the 124a force effect of press section.The upper end of slide block 122 is provided with stop portion 122b, and middle part is provided with convex shoulder 122a, and the lower end of slide block 122 is provided with spring 123.
With further reference to Figure 13, the position that the aspiration channel 11 of pressure-vaccum annex 10 is connected with host shell 2 arranges an overhanging briquetting 118, and the inner side of overhanging briquetting 118 arranges the engaging piece 119 being used for being connected with hook portion 124b.When pressure-vaccum annex 10 is separated with main body housing 2, under slide block 122 is in original state under the supporting role of spring 123,122b side, slide block 122 stop portion now and the stop portion 121b of the first flip flop equipment 121 offset, and prevent the slip of the first flip flop equipment 121; Now by forcing in locking mechanism 124 press section 124a downwards to overcome spring 125 elastic force, locking mechanism 124 is moved down in host shell, when locking mechanism 124 is in the position moved down, the hook portion 124b of locking mechanism 124 can be meshed with the engaging piece 119 of pressure-vaccum annex 10 easily and be connected.
Host shell 2 is provided with for coordinating aspiration channel 11, blower 12 patches suction pipe interface 139a, blowpipe interface 139b, wherein the bottom of blowpipe interface 139b is provided with projection 141, the groove 141 ' that blower 12 appropriate section connected with blowpipe interface 139b is arranged, projection 141 and groove 141 ' can be selected to engage, and projection 141 also can exchange with the position of groove 141 '.
The second flip flop equipment 140 in the present embodiment is frizzen, and what it was arranged at the second operating portion 5b connects end.When pressure-vaccum annex 10 is installed on host shell 2 by needs, first the bottom projection 414 of the groove 141 ' of blower 12 with blowpipe interface 139b is engaged, 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 operating portion 5a of holding operation handle 5 on the other hand, another grasped second operating portion 5b, makes pressure-vaccum annex 10 rotate until be locked on host shell 2 by pressure-vaccum annex 10 to the direction near host shell 2.Second switch 138 is arranged at and connects in the host shell 2 of end near the second operating portion 5b, host shell 2 is provided with and stretches into for frizzen 140 and trigger the perforate 142 of second switch 138.When the first operating portion 5a and the second operating portion 5b connects as one, the triggering shell fragment that frizzen 140 touches second switch 138 causes second switch 138 conducting.
When pressure-vaccum annex 10 is installed and connected in host shell 2, the overhanging briquetting 118 of pressure-vaccum annex 10 stretches in host shell 2, just in time interact with the convex shoulder 122a of slide block 122, convex shoulder 122a is by the driving of overhanging briquetting 118, slide block 122 is impelled to overcome the elastic force slide downward of spring 123, now the stop portion 122b of the slide block 122 and stop portion 121b of flip flop equipment 121 throws off mutually, and then allows the first flip flop equipment 121 to slide into the second place making contact 121a actuate the first switch 117.
When the first flip flop equipment 121 moves to the second place, the stop portion 121c of the first flip flop equipment 21 is positioned at immediately below locking mechanism 124 press section 124a, locking mechanism 124 is prevented to move down, now the hook portion 124b of locking mechanism 124 is in the engaging piece 119 of pressure-vaccum annex 10 and engages lock-out state, and, as long as when the first switch 117 is in trigger state, pressure-vaccum annex 10 just cannot be dismantled from host shell 2, avoids because pressure-vaccum annex 10 drops from host shell 2 when the duty.Even if blower 1 ' accidentally drops in operation or drops in ground, pressure-vaccum annex 10 and host shell 2 are separated, now the second flip flop equipment 140 can make second switch 138 disconnect due to the separation of pressure-vaccum annex 10, thus makes the control of switching device interruption to motor 3.Inclined-plane is arranged in the upper surface of the stop portion 122b of slide block 122, also be consider operator just in case perform maloperation, namely not according to normal dismounting mode, first flip flop equipment is moved to the primary importance of non-toggle state, and then press locking device 24, take off pressure-vaccum annex 10, but use brute-force directly to be dismantled from host shell 2 by pressure-vaccum annex 10, now slide block 122 upwards can lift under the effect of spring 123, the stop portion 121b of promotion trigger mechanism 121 moves to the primary importance of non-toggle state by the 122b inclined-plane, stop portion of slide block 122, thus be effectively disconnected switching device.
Only have when pressure-vaccum annex 10 is connected to host shell 2, switching device could carry out work by starter 3.When described pressure-vaccum annex 10 is separated from host shell 2, namely switching device disconnects the control to motor 3.That is, when described pressure-vaccum annex 10 is connected to host shell 2, second switch 138 is triggered by the second flip flop equipment 140, again by operation setting on operating grip 5 the first flip flop equipment 121 trigger the first switch 117, thus to make in switching device the switch of two series connection all switched on and make motor 3 start work.
With further reference to Figure 14, shown in Figure 15, braking mechanism 40 ' comprises the brake disc 241 and brake mount 245 that are oppositely arranged, wherein brake disc 241 is connected on motor output shaft 7, brake mount 245 is fixedly connected in host shell 2, on brake mount 245 relative brake disc 241 end face on brake block 245a is set.Brake disc 241 comprises the first rolling disc 242 being arranged at motor output shaft 7 without relative rotation and the second rolling disc 243 being arranged at motor output shaft rotatably.Be connected with elastic component between first rolling disc 242 and the second rolling disc 243, this elastic component preferably adopts stage clip 248, and is sheathed on the motor drive shaft shaft 7 between the first rolling disc 242 and the second rolling disc 243.First rolling disc 242 is provided with the first slope 242a, the second rolling disc 243 is provided with the second slope 243a relative with the first slope 242a, in addition, position relative with brake block 245a on the second rolling disc 243 is provided with brake lining 243b.Under motor 3 is in off working state, first slope 242a is meshed under the effect of extension spring 248 with the second slope 243a, brake lining 243b now on the second rolling disc 243 abuts mutually with the brake block 245a on brake mount 245, and namely motor exports defeated 7 and is in on-position.When motor 3 starts rotation, motor output shaft 7 drives the first rolling disc 242 to rotate, now because the second rolling disc 243 can rotate relative to motor output shaft 7, therefore when the first slope 242a of the first rolling disc 242 rotates, under extension spring 248 acts on, make the relative first slope 242a of the second slope 243a produce the slippage in a direction as shown by the arrow in fig. 15, thus brake lining 243b has been thrown off with brake block 245a abut, the braking of motor output shaft 7 is cancelled.
Once pressure-vaccum annex 10 is dismantled from host shell 2 or is separated, second flip flop equipment 140 just can stop the triggering to second switch 138, thus make switching device be disconnected control to motor 3, the rotating speed of motor 3 is namely by high step-down, now, braking mechanism 40 ' is under the active force of extension spring 248, first slope 242a recovers to engage with the second slope 243a, and the brake lining 3b of the second brake disc 243 is abutted mutually with the brake block 245a of brake mount 245, thus motor output shaft 7 is braked, thus ensure that operator's safety when dismantling pressure-vaccum pipe.
Certainly, if needed, the volute 2b in the embodiment of the present invention can make with motor shell 2a and be flexibly connected, and the power set of drive fan 4 also can substitute by steam engine, internal combustion engine or power brick; Blower 12 and aspiration channel 11 also can independently be arranged, be connected with host shell respectively, also blower 12 and aspiration channel 11 the pressure-vaccum airduct being arranged to single gas channel be can be merged, and on this pressure-vaccum airduct, the main part extended longitudinally and the kink angularly arranged with main part are provided with; The body of the bending that above-mentioned pressure-vaccum airduct or the kink body of aspiration channel 12 can be arranged to flat, cylindrical, taper, trapezoidal or any one are applicable to.More than being similar to dependency structure of the present invention is all the claimed design concepts of the present invention.
Claims (16)
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, driven the fan rotated by motor, control the switching device that motor rotates, for the controlling organization of trigger switch device, it is characterized in that: be provided with braking mechanism in described host shell, when described pressure-vaccum annex is separated with host shell, described braking mechanism controls described fan and stops the rotation.
2. blower according to claim 1, it is characterized in that: described blower is provided with operating grip, described controlling organization is arranged on operating grip, only have when pressure-vaccum annex is connected to host shell, described controlling organization could trigger described switching device, when pressure-vaccum annex is separated with host shell, described switching device disconnects the control to motor.
3. blower according to claim 1 and 2, it is characterized in that: between described pressure-vaccum annex and host shell, be provided with safety locking mechanism, described safety locking mechanism comprises the locking member being movably set in host shell, and described locking member selectively engages with pressure-vaccum annex and locks.
4. blower according to claim 2, is characterized in that: described switching device comprises the switch be connected with controlling organization, described pressure-vaccum annex is provided with the supporter for triggering described switch.
5. blower according to claim 2, is characterized in that: described switching device comprises and is series at the first switch in host shell and second switch.
6. blower according to claim 5, it is characterized in that: described controlling organization comprises the first flip flop equipment being arranged at operating grip and the second flip flop equipment being arranged at pressure-vaccum annex, when described pressure-vaccum annex is connected to host shell, described second flip flop equipment triggers described second switch.
7. blower according to claim 6, is characterized in that: described operating grip comprises the first operating portion being arranged at host shell, and is arranged at the second operating portion of pressure-vaccum annex, and described first flip flop equipment is arranged at the first operating portion.
8. blower according to claim 7, it is characterized in that: described pressure-vaccum annex comprises blower and aspiration channel, wherein aspiration channel is positioned at the top of blower, described second operating portion is provided with the stiff end be connected with aspiration channel, and to removably connect with the first operating portion connect end, described second flip flop equipment is arranged at and connects end.
9. blower according to claim 8, is characterized in that: described second switch is arranged near connecting in the host shell of end, described host shell is arranged and stretches into host shell for the second flip flop equipment and trigger the perforate of second switch.
10. blower according to claim 1, is characterized in that: described motor has motor output shaft, and described braking mechanism comprises the brake disc being connected to motor output shaft, and the brake mount that relative host shell is fixedly installed.
11. blowers according to claim 10, is characterized in that: the brake block described brake disc being provided with pivotable, and described brake block is selectively separated with described brake mount or abuts.
12. blowers according to claim 11, it is characterized in that: described brake block quantity comprises two arc brake sheets respectively with head end and tail end, be connected by elastic component between another tail end of the head end and described two arc brakes of one of described two arc brake sheets.
13. blowers according to claim 12, it is characterized in that: described brake disc is provided with peripheral wall, described brake block lays respectively at inside peripheral wall in being oppositely arranged, described brake block is respectively equipped with the first arc brake face, and described brake mount is provided with the second arc brake face relative with described first arc brake face.
14. blowers according to claim 10, it is characterized in that: described brake disc comprises with motor output shaft without the first rolling disc in relative rotation, and relative rotating second rolling disc of motor output shaft, be provided with elastic component between described first rolling disc and the second rolling disc.
15. blowers according to claim 14, it is characterized in that: described first rolling disc is provided with the first slope, described second rolling disc arranges second slope relative with the first slope, and the first slope selectively engages with the second slope or is separated.
16. blowers according to claim 15, it is characterized in that: described brake mount is provided with brake block, described first rolling disc is provided with the brake lining relative with brake block, when described first slope selectively engages with the second slope or is separated, described brake lining correspondingly abuts with brake block or is separated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110412966.2A CN103156548B (en) | 2011-12-13 | 2011-12-13 | Blower |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110412966.2A CN103156548B (en) | 2011-12-13 | 2011-12-13 | Blower |
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| Publication Number | Publication Date |
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| CN103156548A CN103156548A (en) | 2013-06-19 |
| CN103156548B true CN103156548B (en) | 2015-08-19 |
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| CN201110412966.2A Active CN103156548B (en) | 2011-12-13 | 2011-12-13 | Blower |
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Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103345294B (en) * | 2013-07-16 | 2015-02-04 | 迈柯唯医疗设备(苏州)有限公司 | Manual control mechanism capable of being stopped freely |
| CN105648956B (en) * | 2014-11-11 | 2017-06-16 | 苏州宝时得电动工具有限公司 | Blower |
| CN105673528B (en) * | 2014-11-18 | 2020-02-04 | 创科户外产品技术有限公司 | Electric tool |
| CN105648958B (en) * | 2014-11-28 | 2019-03-05 | 苏州宝时得电动工具有限公司 | Suction and blowing device |
| EP3225740B1 (en) | 2014-11-28 | 2021-11-10 | Positec Power Tools (Suzhou) Co., Ltd | Blower/vacuum apparatus |
| WO2017124627A1 (en) | 2016-01-20 | 2017-07-27 | 江苏美的清洁电器股份有限公司 | Vacuum cleaner |
| CN107397507A (en) * | 2016-05-20 | 2017-11-28 | 苏州宝时得电动工具有限公司 | Blower and its brake method |
| CN105862641B (en) * | 2016-06-16 | 2020-06-30 | 天佑电器（苏州）有限公司 | Gardening electric tool with power-off delay protection function |
| CN108240345B (en) * | 2016-12-23 | 2024-02-20 | 苏州宝时得电动工具有限公司 | Electric tool |
| CN107414106B (en) * | 2017-08-11 | 2019-02-05 | 上海舟乐船舶钢构件有限公司 | A kind of mainshaft mechanism of novel digital-control boring-milling machine |
| CN112890664B (en) * | 2021-01-15 | 2022-09-23 | 义乌市坤玥玩具有限公司 | Vehicle-mounted dust collector |
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| CN103156548A (en) | 2013-06-19 |
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