CN208023485U - Blower - Google Patents
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- CN208023485U CN208023485U CN201721517685.2U CN201721517685U CN208023485U CN 208023485 U CN208023485 U CN 208023485U CN 201721517685 U CN201721517685 U CN 201721517685U CN 208023485 U CN208023485 U CN 208023485U
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Abstract
The utility model is related to a kind of blowers, including：Host shell；Pressure-vaccum component, removably it is connected to the host shell, the pressure-vaccum component includes aspiration channel and blower, the aspiration channel includes the first connector positioned at the air inlet of axial forward end and positioned at axial rearward end, and the blower includes the second connector of the extraneous air outlet of connection and the connection host shell；Motor is connected to the host shell；Fan is driven by motor and rotates and generate air-flow；Operation handle, for being held for operator；The aspiration channel has and an only axial line, the axial line of the aspiration channel extends forward from the axle center of first connector, the axial line of the blower extends forward from the axle center of second connector, the axial line of the aspiration channel and the intersection point of plane where the air inlet are located at the front end of the axial line and the intersection point of plane where the air outlet of the blower, and the air line distance between two intersection points is 50mm~200mm.
Description
Technical field
The utility model is related to a kind of blower more particularly to the pressure-vaccum components of blower.
Background technology
Existing garden class blower is blown, there are two types of the set-up mode of aspiration channel is usual, and one is be connected to host shell
Blower, aspiration channel be respectively equipped with independent gas channel, switching mechanism is provided in shell can effectively close dust mouth
Or inflatable mouth, and from realize blow mode and air-breathing mode conversion；Another kind is that single gas is only arranged in pressure-vaccum pipe
Circulation road blows, inhales that utilized under two different operating modes is the same gas channel, air inlet is arranged on shell, leads to
It crosses certain mechanism effectively to open or close air inlet, blower just can be converted between blow mode and air-breathing mode.
For the first, usually since the extended distance between aspiration channel and blower matches improper, and aspiration channel is brought
Air inlet and blower air outlet generate interference in air flow, influence aspect of blowing efficiency.
Utility model content
To overcome the deficiencies of existing technologies, the purpose of this utility model is to provide one kind capable of improving aspect of blowing efficiency and suction
The blower of performance.
Technical solution is used by the utility model solves prior art problem：
A kind of blower, selectable to work under blowing mould formula or suction mode, which includes：
Host shell；
Pressure-vaccum component, is removably connected to the host shell, and the pressure-vaccum component includes relatively independent aspiration channel
And blower, the aspiration channel are in communication with the outside with the blower and axially extend, the aspiration channel includes being located at
The air inlet of axial forward end and the first connector positioned at axial rearward end of the connection host shell, the blower include connecting
Lead to the second connector of extraneous air outlet and the connection host shell；
Motor is connected to the host shell, for generating rotary power；
Fan is driven by motor and rotates and generate air-flow；
Operation handle, for being held for operator；
The aspiration channel has and an only axial line, and the axial line of the aspiration channel is from the axle center of first connector
Extend forward, the axial line of the blower extends forward from the axle center of second connector, the axial line of the aspiration channel
It is located at the axial line and the intersection point of plane where the air outlet of the blower with the intersection point of plane where the air inlet
Front end, and the axial line of the intersection point and the blower of plane where the axial line of the aspiration channel and the air inlet with it is described
Air line distance between the intersection point of plane where air outlet is 50mm~200mm.
Preferably, the axle center of the axial line of the aspiration channel and the intersection point and the blower of plane where the air inlet
Air line distance between the intersection point of plane where line and the air outlet is 80mm~120mm.
Preferably, the blower has and an only axial line, the axial line of the aspiration channel and the blower
The angular range that axial line is formed is 0 degree~20 degree.
Preferably, the aspiration channel in the sectional area in the axial direction by first connector to the air inlet
Mouth is in gradually to increase or remain unchanged.
Preferably, the blower in the sectional area in the axial direction from second connector to the outlet air
Mouth is in be gradually reduced or remain unchanged.
Preferably, the first connector of the aspiration channel is being more than the blowing with the sectional area on axial perpendicular direction
The air outlet of pipe with the sectional area on axial perpendicular direction.
Preferably, the development length of the aspiration channel in the axial direction ranging from 550mm~700mm, and the blower exists
Development length ranging from 500mm~650mm in axial direction.
Preferably, the development length of the blower in the axial direction is less than the development length of the aspiration channel in the axial direction,
The development length of the aspiration channel is 650mm, and the development length of the blower is 550mm.
Preferably, the host shell includes the spiral case for accommodating fan, and the pressure-vaccum component is removably connected to described
Spiral case, the spiral case include spire and shout portion, and there is the spire radius of spin and the outlet of gradual change, the outlet to correspond to
The radius of spin it is maximum, there is the ventilation opening being connect with the blower, the cross-sectional area of the ventilation opening to be equal in the portion of shouting
The cross-sectional area of the air outlet of the blower.
Preferably, the cross-sectional area of the ventilation opening is more than the cross-sectional area of the outlet.
Preferably, the blower further comprises the operation handle for being provided with first handle and second handle, described
One handle is set on the host shell, and the second handle is set on the pressure-vaccum component.
Preferably, in the axial direction, the development length of the first handle is more than the development length of the second handle, described
First handle is used for when the blower is in running order, is hold by one hand for operator；The second handle is used in institute
It states when pressure-vaccum component is dismantled or installed with the host shell and is held for operator.
Preferably, the first handle divides section in having, and divides section to be symmetrical arranged during the first handle is relatively described,
The spiral case further includes being formed in the spire initiating terminal and the volute tongue portion shouted between portion, and the volute tongue portion has segmentation
Top fillet divides section to be configured to tangent or intersect with fillet at the top of the segmentation in described.
Preferably, the first handle includes the first grip part held for operator, and in the axial direction, described first holds
The front end in portion is at least partly more than the first connector of the aspiration channel forward.
Preferably, the air line distance between the front end of first grip part and first connector is more than or equal to
25mm, and it is less than or equal to 45mm.
Preferably, the blower further includes the dust outlet tube for being connected to the host shell, the extension side of the dust outlet tube
To perpendicular with the extending direction of the aspiration channel, the dust outlet tube on the perpendicular direction of dust outlet tube extending direction
Sectional area be equal to second connector with the sectional area on axial perpendicular direction.
Preferably, the blower further includes the pressure-vaccum switching mechanism being connected to inside host shell, the pressure-vaccum conversion
Mechanism includes the control knob being arranged outside host shell and the adjusting flap inside host shell, and the control knob can be grasped
The control adjusting flap of work closes the opening of second connector or the closing dust outlet tube, to realize the blower
It is converted between the suction mode and the blowing mould formula.
Preferably, the motor drives the fan rotation around a rotation axis, and the fan, which has, passes through the motor
Take the pivot center of rotation to, the axial line of the aspiration channel, the rotation axis of the motor and the fan pivot center
Conllinear setting.
Compared with prior art, the utility model at least has the advantages that：
1. aspiration channel is set as straight tube, air-flow can be smoothly introduced to from air inlet in aspiration channel, will not reproduce into volume
Outer windage is effectively increased the utilization rate of air-flow.
2. in the axial direction, axial line and the outlet air of the axial line of aspiration channel and the intersection point and blower of plane where air inlet
Air line distance between the intersection point of plane where mouthful is 50mm~200mm.It is under blowing pattern to avoid blower, air inlet
There is interference in air flow with air outlet, to influence performance of drying.
3. the front end of the first grip part of first handle is at least partly more than the first connector of aspiration channel forward, so
Design, the person of being conveniently operated can carry out one-handed performance no matter under blowing mould formula or under suction mode.And for different heights
User for, can be selected from first handle be suitble to the grip position of oneself, to grasp the center of gravity of blower so that behaviour
Work becomes more light.
Description of the drawings
Above-described the purpose of this utility model, technical solution and advantageous effect can be realized by following
The detailed description of specific embodiment of the utility model is described in combination with attached drawing and is clearly obtained.
Identical label and symbol in attached drawing and specification is for representing identical or equivalent element.
Fig. 1 is the sectional view of the blower along main view direction of the utility model.
Fig. 2 is the schematic diagram that the blower of the utility model is moved towards in blowing mould formula downstream.
Fig. 3 is the schematic diagram that the blower of the utility model is moved towards in suction mode downstream.
Fig. 4 is that the pressure-vaccum component of blower shown in Fig. 2 is in the schematic diagram of discrete state with host shell.
Fig. 5 is the schematic diagram at another visual angle of blower shown in FIG. 1.
Fig. 6 is the stereoscopic schematic diagram of the fan of the blower of the utility model.
Specific implementation mode
The preferred embodiment of the utility model is described in detail below in conjunction with the accompanying drawings, so that the advantages of the utility model
It can be easier to be readily appreciated by one skilled in the art with feature, it is apparent clear to be made to the scope of protection of the utility model
Define.
As shown in Figures 1 to 4, it is a kind of portable blower 100 that can carry out one-handed performance of the utility model announcement.
Blower 100 is a kind of common garden tool, for executing cleaning.Blower 100 can utilize blowing function that will dissipate
The leaf fallen is put together, and air suction function can also be utilized leaf to be sucked in specified refuse collector, clear to reach
Clean purpose.Therefore blower 100 at least have there are two types of operating mode.When blower 100 is in the first operating mode, pressure-vaccum
Machine 100 executes blowing function；And when blower 100 is in the second operating mode, blower 100 executes air suction function.Therefore
First operating mode can also be referred to as blowing mould formula, and the second operating mode can also be referred to as suction mode.User can be according to itself
The actual demand of operation, it is selectable to work under blowing mould formula or suction mode.Blower 100, the whole arrow A institutes along Fig. 1
The direction shown extends, and it is axial to define the direction.
As shown in Figure 1, blower 100 include host shell 1, dismountable pressure-vaccum component 2 for being connected to host shell 1,
It is connected to the dust outlet tube 6 of 1 one end of host shell, the motor 3 for being connected to host shell 1, rotation is driven by motor 3 and generates gas
The fan 4 of stream and the operation handle 5 held for operator.Operation handle 5 includes the first handle 51 being set on host shell 1
And it is set to the second handle 52 on pressure-vaccum component 2.
As shown in fig. 6, fan 4 is centrifugal fan.Centrifugal fan includes wheel disc 41, the wheel hub at 41 center of wheel disc is arranged
42, multiple blades 43 in the annular region that wheel hub 42 and 41 periphery of wheel disc surround.Blade 43 can be integrated with wheel hub 42
Molding can also be fixedly connected.Circumferentially uniform distribution of the blade 43 along fan.Preferably, the quantity of blade 43 is 5, certainly
It can also be 4,6,7,8,9 etc..The hand of spiral of several such blades 43 is consistent.Blade 43 with
Wheel hub 42 rotates together with.
As shown in Figure 1, motor 3 is connected to host shell 1, and rotated around a rotation axis driving fan 4.In this embodiment party
In formula, motor 3 is placed in host shell 1.Certainly in other embodiments, motor 3 is detachably to connect with host shell 1
It connects, so that when blower 100 leaves unused, motor 3 is removable to be unloaded down, is used for other electric tools, is reduced the waste of resource.
The pressure-vaccum component 2 includes relatively independent aspiration channel 21 and blower 22.When blower 100 is in running order
When, pressure-vaccum component 2 is connected to host shell 1, and aspiration channel 21 is axially extended with blower 22.Further, aspiration channel 21
Include the first connection positioned at axial rearward end of the extraneous air inlet 211 and connection host shell 1 positioned at axial forward end of connection
Mouth 213.Blower 22 includes the extraneous air outlet 221 of connection and connects the second connector 223 of host shell.Work as blower
100 in (as shown in Figure 2) under blowing mould formula, and fan drives extraneous air-flow to be entered in aspiration channel 21 from air inlet 211, and leads to
Passing through fan 4 is introduced to blower 22, and finally, air-flow is outwardly blown out from the air outlet 221 of blower 22；At blower 100
When under suction mode (as shown in Figure 3), fan 4 drives extraneous air-flow and foreign matter to be entered in aspiration channel 21 from air inlet 211,
And dust outlet tube 6 is introduced to by fan 4, it finally flows into dust bag (not shown).
As shown in figures 1-4, aspiration channel 21 is to be fixedly connected, and blower 22 is located under aspiration channel 21 with blower 22
Side.In the present embodiment, aspiration channel 21 has and an only axial line a, the first connector of axial line a self-primings air hose 21
213 axle center extends forward.Aspiration channel 21 known at this time is straight tube.Axis of the axial line of blower 22 from the second connector 223
The heart extends forward, it is preferred that blower 22 has and an only axial line b, and blower 22 is also straight tube (such as Fig. 1 institutes at this time
Show).In the axial direction, the axial line a of aspiration channel 21 and the intersection point of 211 place plane of air inlet are located at the axial line b of blower 22
With the front end of the intersection point of 221 place plane of air outlet.And the intersection point of the axial line a of aspiration channel 21 and 211 place plane of air inlet
Air line distance c between the intersection point of the 221 place plane of axial line b and air outlet of blower 22 is 50mm~200mm.I.e. should
Air line distance can be：60mm,70mm, 80mm,90mm,100mm,110mm,120mm,130mm,140mm,150mm,
160mm,170mm, 180mm,190mm,200mm.Preferably, the axial line a of aspiration channel 21 and 211 place plane of air inlet
Air line distance c between the intersection point of the 221 place plane of axial line b and air outlet of intersection point and blower 22 is 80mm~120mm.
It is such to be advantageous in that, avoid blower 100 from being under blowing pattern, there is interference in air flow with air outlet 221 in air inlet 211,
To influence performance of drying.Specifically, when blower 100 is under blowing pattern, the rotation of fan 4 drive extraneous air-flow into
Enter in pressure-vaccum attachment 2, and blown out outward from the air outlet of blower 22 221, when air outlet 221 is set at a distance from air inlet 211
Meter it is too close when, the air-flow at air outlet 221 is easy to leaf or dust and other impurities being blown into air inlet 211.One side
Face, sundries can generate collision with the inner wall of pressure-vaccum attachment 2, bring strong noise；On the other hand, air inlet 211 and outlet air
The self-loopa of air-flow, causes blower 100 to cannot achieve good airflow effects at mouth 221.
Further, the angular range that the axial line b of the axial line a of aspiration channel 21 and blower 22 is formed is 0 degree~20
Degree.Ranging from 550mm~the 700mm of development length in the axial direction of aspiration channel 21, the i.e. development length of aspiration channel 21 in the axial direction
Can be 560mm, 580mm, 600mm, 620mm, 640mm, 660mm, 680mm, 690mm.The extension of blower 22 in the axial direction
Length range is 500mm~650mm.I.e. the development length of blower 22 in the axial direction can be 520mm, 540mm, 560mm,
580mm,600mm, 620mm,640mm.In the present embodiment, the development length of blower 22 in the axial direction is less than aspiration channel
21 development length in the axial direction.Specifically, the development length of aspiration channel 21 in the axial direction is 650mm, blower 22 is in axial direction
On development length be 550mm.
Certainly, blower 22 or non-straight tube, at this time and blower 22 from the axle center of the second connector 223 forward
The intersection point of the axial line and 221 place plane of air outlet of extension, is still located on and the axial line a of aspiration channel 21 and air inlet 211
The axial rearward end of the intersection point of place plane.
As the embodiment of the utility model, aspiration channel 21 is in the sectional area in axial direction by the first connector
213 increase to air inlet 211 in gradual.Specifically, aspiration channel 21, which is parallel to axial cross sectional shape, has smooth profile
Line, such to be advantageous in that, air-flow can be smoothly introduced to from air inlet 211 in aspiration channel 21, will not be reproduced into additional
Windage is effectively increased the utilization rate of air-flow.And sectional area design of the aspiration channel 21 at air inlet 211 is relatively large,
Intake can be increased.Further, blower 22 in the sectional area in axial direction by the second connector 223 to air outlet
221 be in be gradually reduced.Specifically, blower 22, which is parallel to axial cross sectional shape, has smooth contour line, it is such good
Being introduced in blower 22 of airflow smooth can be made by being in the blower 22 in, straight tube-like, reduce air-flow and blower 22
The collision of inner wall, and when air-flow is entered in blower 22, can be by 22 sectional dimension of blower from the second connector 223 to going out
Air port 221 tapers into, and to be gradually pressurized to air-flow, obtains ideal wind speed.
As shown in Fig. 1~5, host shell 1 includes the motor shell 11 for accommodating motor 3 and the spiral case 13 for accommodating fan 4.
In the present embodiment, motor shell 11 and spiral case 13 are integrally formed.The rear end of motor shell 11 connects promising motor 3 and provides
The conducting wire of power supply.Certainly in other embodiments, motor shell 11 may be alternatively configured seperated flexible connection with spiral case 13, be
The energy unit that motor 3 is powered is alternatively battery pack.Spiral case 13 includes spire 131 and shouts portion 133, and spire 131 has
There are the radius of spin and the outlet 135 of gradual change.Air-flow is generated from 13 inside of spiral case and is moved with spiral-type path, and by outlet 135
Discharge.It is maximum to export the 135 corresponding radius of spin.It shouts portion 133 and is connected to setting with the outlet 135 of spire 131, and have and blow
The ventilation opening 1331 that air hose 22 connects.In the present embodiment, the cross-sectional area of ventilation opening 1331 is equal to the outlet air of blower 22
The cross-sectional area of mouth 221.And the cross-sectional area of ventilation opening 1331 is more than the cross-sectional area of outlet 135.By the cross of ventilation opening 1331
Sectional area is set greater than the cross-sectional area of outlet 135, on the one hand can slow down the flow velocity of the air-flow from 135 discharge of outlet, from
And noise of the air-flow in portion of shouting 133 is reduced, on the other hand, the coverage area and aspect of blowing efficiency of blowing are improved, reduces blowing damage
It loses.Certainly, the cross-sectional area for shouting the ventilation opening 1331 in portion 133 is not suddenly to increase, in order to keep air-flow smooth in portion of shouting 133
Movement.Preferably, ventilation opening 1331 of the cross-sectional area in portion 133 from the outlet 135 of spire 131 to portion of shouting 133 is shouted gradually
It is incremented by.
It shouts portion 133 and the initiating terminal of spire 131 is also formed with volute tongue portion 137.The volute tongue portion 137 has segmentation top circle
Angle 1371.Operation handle 5 divides section in having, operation handle 5 relatively in divide section to be symmetrical arranged.Divide in operation handle 5 and cuts open
Face is configured to tangent or intersect with segmentation top fillet 1371.So designing is advantageous in that, increases the wind pressure in blower 22,
Improve blowing performance.
Further, above-mentioned dust outlet tube 6 is connected to the lower end of spiral case 13, extending direction and the aspiration channel 21 of dust outlet tube 6
Extending direction is substantially vertical, and dust outlet tube 6 is being equal to the second company with the cross-sectional area on the perpendicular direction of 6 extending direction of dust outlet tube
Interface 223 with the cross-sectional area on axial perpendicular direction.
First handle 51 is substantially in reversed C fonts, and one end is connected to the rear end of second handle 52, and the other end is connected to
Host shell 1, to form gripping space.Second handle 52 is substantially in reversed V types, and one end is connected to first handle 51
Front end, the other end is connected to aspiration channel 21, to form gripping space.First handle 51 is used to be in work in blower 100
It when making state, is hold by one hand for operator, second handle 53 is for being dismantled or being installed with host shell 1 in pressure-vaccum component 2
When for operator hold.When pressure-vaccum component 2 is connected to host shell 1, first handle 51 is combined into completely with second handle 52
Operation handle 5.It should be noted that first handle 51 can be integrally formed with host shell 1, also can split settings, second-hand
Handle 52 can be integrally formed with pressure-vaccum component 2, can also split settings.
The development length of first handle 51 in the axial direction is longer than the development length of second handle 52 in the axial direction.It is detailed,
First handle 51 has the first grip part 511 held for operator, and second handle 52 has to be held for operator holds second
Hold portion 521.The development length of first grip part 511 in the axial direction is longer than the development length of the second grip part 521 in the axial direction.And
The front end of first grip part 511 is at least partly more than the first connector 213 of aspiration channel 21 forward in the axial direction.In this implementation
In mode, the air line distance d between the front end of the first grip part 511 and the first connector 213 is more than or equal to 25mm (such as Fig. 1
It is shown), and it is less than or equal to 45mm.I.e. the air line distance can be：28mm,30mm,34mm, 35mm,38mm,40mm,42mm,
44mm.So designing is advantageous in that：The person of being conveniently operated can carry out one hand no matter under blowing mould formula or under suction mode
Operation.And for the user of different heights, it can select to be suitble to the grip position of oneself from first handle 51, to slap
Hold the center of gravity of blower 100 so that operation becomes more light.When operator is hold by one hand the operation handle of blower 100
51, and when the blower 100 is in suction mode, since the position of centre of gravity of blower 100 is come to relatively low, operator holds behaviour
The arm for making handle 5 is kept vertically substantially, and the air inlet 211 of aspiration channel 21 is close to ground, and extraneous foreign matter is with charge air flow
Into dust outlet tube 6, dust bag is finally sent by fan 4, operator's process is extremely light, and pick-up performance is also improved；Work as behaviour
Author is hold by one hand the operation handle of blower 100, and when the blower 100 is in blowing mould formula, and operator is in operation handle 5
On grip position want former point, the position of centre of gravity of blower 100 to be elevated with respect to dust suction state, the arm of operator is still at this time
So basic to keep vertical, air blowing air-flow is blown out from the air outlet 221 of blower 22, poly- for blowing by foreign matters such as leaf, dusts
Heap.
Blower 100 further comprises Operation switch 7 and safety interlock structure (structure at the circled regions Fig. 1).When
When pressure-vaccum component 2 is not connected to host shell 1 or is dismantled from host shell 1, safety interlock structure 8 can prevent Operation switch
7 starter motors 3, to avoid high-speed rotating motor 3 from hurting operator；When pressure-vaccum component 2 is connected to host shell 1,
At this point, safety interlock structure 8 can ensure that Operation switch 7 is at triggering state, worked with starter motor 3.
As shown in Figures 1 to 3, blower 100 further includes the pressure-vaccum switching mechanism 9 for being connected to host shell 1, pressure-vaccum conversion
Mechanism 9 is positioned close at the position of dust outlet tube 6, and pressure-vaccum switching mechanism 9 includes the control being arranged in the outside of host shell 1
Button 91 and the adjusting flap 92 inside host shell 1.Only control need to be adjusted according to the instruction direction marked in operator
Button 91 processed, can be such that blower 100 is switched between blowing mould formula and suction mode.Specifically, adjusting flap 92 has first
Position and the second position, wherein at first position, what 1 internal gas flow of host shell can be without hindrance flows into blower 22
Interior, blower 100 is in blowing pattern at this time, and 4 high speed rotation of fan, the air inlet 211 of air-flow self-priming air hose 21, which flows into, to be blown
In air hose 22, it is fed through blower 22 after fan 4 and is blown out outward by air outlet 221；At the second position, host shell
1 internal gas flow can be without hindrance flow into dust outlet tube 6, leaf, dust and other impurities are same as air inlet 211 together with air-flow one and are inhaled
Enter to aspiration channel 21, dust outlet tube 6 is fed through after being crushed by the blade 43 of fan 4.I.e. it is understood that adjusting flap 92
First position (as shown in Figure 2) is the opening that can cover dust outlet tube 6, to prevent air-flow from flowing into dust outlet tube 6, adjusting flap
92 second position (as shown in Figure 3) is the second connector 223 that can cover blower 22, is blown with preventing air-flow from flowing into
In air hose 22.
Above-described embodiments merely represent several embodiments of the utility model, the description thereof is more specific and detailed,
But it should not be understood as limiting the scope of the patent of the utility model.It should be pointed out that for the common of this field
For technical staff, without departing from the concept of the premise utility, various modifications and improvements can be made, these all belong to
In the scope of protection of the utility model.
Claims (18)
1. a kind of blower, with blowing mould formula and suction mode, which includes：
Host shell；
Pressure-vaccum component, is removably connected to the host shell, and the pressure-vaccum component includes relatively independent aspiration channel and blows
Air hose, the aspiration channel are in communication with the outside with the blower and axially extend, and the aspiration channel includes being located at axially
The air inlet of front end and the first connector positioned at axial rearward end of the connection host shell, the blower include that connection is outer
The air outlet on boundary and the second connector of the connection host shell；
Motor is connected to the host shell, for generating rotary power；
Fan is driven by motor and rotates and generate air-flow；
It is characterized in that, the aspiration channel has and an only axial line, the axial line of the aspiration channel is connected from described first
The axle center of mouth extends forward, and the axial line of the blower extends forward from the axle center of second connector, the aspiration channel
Axial line and the air inlet where the intersection point of plane be located at the axial line and air outlet place plane of the blower
Intersection point front end, and the axle center of the intersection point and the blower of plane where the axial line of the aspiration channel and the air inlet
Air line distance between the intersection point of plane where line and the air outlet is 50mm~200mm.
2. blower according to claim 1, which is characterized in that the axial line of the aspiration channel and air inlet place
Air line distance between the intersection point of plane where the axial line and the air outlet of the intersection point of plane and the blower is 80mm
~120mm.
3. blower according to claim 1, which is characterized in that the blower has and an only axial line, described
The angular range that the axial line of the axial line of aspiration channel and the blower is formed is 0 degree~20 degree.
4. blower according to claim 1, which is characterized in that the aspiration channel is in the section in the axial direction
Product is in gradually to increase or remain unchanged by first connector to the air inlet.
5. blower according to claim 1, which is characterized in that the blower is in the section in the axial direction
Product is in be gradually reduced or remain unchanged from second connector to the air outlet.
6. blower according to claim 1, which is characterized in that the first connector of the aspiration channel mutually hangs down with axial
The upward sectional area of histogram be more than the air outlet of the blower with the sectional area on axial perpendicular direction.
7. blower according to claim 1, which is characterized in that the development length of the aspiration channel in the axial direction is ranging from
550mm~700mm, and the development length of the blower in the axial direction ranging from 500mm~650mm.
8. blower according to claim 7, which is characterized in that the development length of the blower in the axial direction is less than institute
The development length of aspiration channel in the axial direction is stated, the development length of the aspiration channel is 650mm, and the development length of the blower is
550mm。
9. blower according to claim 1, which is characterized in that the host shell includes the spiral case for accommodating fan, institute
It states pressure-vaccum component and is removably connected to the spiral case, the spiral case includes spire and shouts portion, and the spire has gradual change
The radius of spin and outlet, the corresponding radius of spin in the outlet is maximum, and the portion of shouting has what is connect with the blower to lead to
Air port, the cross-sectional area of the ventilation opening are equal to the cross-sectional area of the air outlet of the blower.
10. blower according to claim 9, which is characterized in that the cross-sectional area of the ventilation opening is more than the outlet
Cross-sectional area.
11. blower according to claim 9, which is characterized in that the blower further comprises being provided with first-hand
The operation handle of handle and second handle, the first handle are set on the host shell, and the second handle is set to institute
It states on pressure-vaccum component.
12. blower according to claim 11, which is characterized in that in the axial direction, the development length of the first handle
More than the development length of the second handle, the first handle is used for when the blower is in running order, for operation
Person is hold by one hand；The second handle is used for when the pressure-vaccum component and the host shell are dismantled or installed for operation
Person holds.
13. blower according to claim 11, which is characterized in that the first handle divides section in having, and described
Section is divided to be symmetrical arranged during one handle is relatively described, the spiral case further includes being formed in the spire initiating terminal to shout portion with described
Between volute tongue portion, the volute tongue portion have segmentation top fillet, divide in described section be configured to and the segmentation at the top of fillet
Tangent or intersection.
14. blower according to claim 11, which is characterized in that the first handle includes held for operator
One grip part, in the axial direction, the front end of first grip part are at least partly more than the first connection of the aspiration channel forward
Mouthful.
15. blower according to claim 14, which is characterized in that the front end of first grip part and described first
Air line distance between connector is more than or equal to 25mm, and is less than or equal to 45mm.
16. blower according to claim 1, which is characterized in that the blower further includes being connected to the main case
The dust outlet tube of body, the extending direction of the dust outlet tube and the extending direction of the aspiration channel are perpendicular, the dust outlet tube with institute
State sectional area on the perpendicular direction of dust outlet tube extending direction be equal to second connector on axial perpendicular direction
Sectional area.
17. blower according to claim 16, which is characterized in that the blower further includes being connected in host shell
The pressure-vaccum switching mechanism in portion, the pressure-vaccum switching mechanism include the control knob being arranged outside host shell and be located at host shell
Internal adjusting flap, the operable control adjusting flap of control knob are closed described in second connector or closing
The opening of dust outlet tube is converted with realizing the blower between the suction mode and the blowing mould formula.
18. blower according to claim 1, which is characterized in that the motor drives the fan around a rotation axis
Rotation, the fan, which has, takes the pivot center of rotation to by the motor, the axial line of the aspiration channel, the motor
The pivot center of rotation axis and the fan is collinearly arranged.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721517685.2U CN208023485U (en) | 2017-11-14 | 2017-11-14 | Blower |
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| CN201721517685.2U CN208023485U (en) | 2017-11-14 | 2017-11-14 | Blower |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112482284A (en) * | 2020-10-20 | 2021-03-12 | 慈溪市贝士达电动工具有限公司 | Blowing and sucking machine |
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2017
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112482284A (en) * | 2020-10-20 | 2021-03-12 | 慈溪市贝士达电动工具有限公司 | Blowing and sucking machine |
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