CN110067759A - Leaf air blower - Google Patents
Leaf air blower Download PDFInfo
- Publication number
- CN110067759A CN110067759A CN201910065206.5A CN201910065206A CN110067759A CN 110067759 A CN110067759 A CN 110067759A CN 201910065206 A CN201910065206 A CN 201910065206A CN 110067759 A CN110067759 A CN 110067759A
- Authority
- CN
- China
- Prior art keywords
- air blower
- leaf
- air intake
- leaf air
- sieve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L5/00—Structural features of suction cleaners
- A47L5/12—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum
- A47L5/14—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum cleaning by blowing-off, also combined with suction cleaning
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G20/00—Cultivation of turf, lawn or the like; Apparatus or methods therefor
- A01G20/40—Apparatus for cleaning the lawn or grass surface
- A01G20/43—Apparatus for cleaning the lawn or grass surface for sweeping, collecting or disintegrating lawn debris
- A01G20/47—Vacuum or blower devices
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/10—Filters; Dust separators; Dust removal; Automatic exchange of filters
- A47L9/12—Dry filters
- A47L9/122—Dry filters flat
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
- E01H1/00—Removing undesirable matter from roads or like surfaces, with or without moistening of the surface
- E01H1/08—Pneumatically dislodging or taking-up undesirable matter or small objects; Drying by heat only or by streams of gas; Cleaning by projecting abrasive particles
- E01H1/0809—Loosening or dislodging by blowing ; Drying by means of gas streams
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
- F04D25/0673—Battery powered
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
- F04D29/701—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps
- F04D29/703—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps specially for fans, e.g. fan guards
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a kind of leaf air blowers (1), comprising: shell (3) has entrance (5) and outlet (7)；Fan (9) is arranged in shell (3)；Motor (11) is configured to driving fan (9) to generate the air stream from entrance (5) to outlet (7)；And air intake sieve (13), it is arranged at entrance (5).Air intake sieve (13) is formed by the metal grill (15) for limiting opening (17), wherein it is more than 70% that opening (17), which accounts for the surface area of air intake sieve (13),.
Description
Technical field
The present invention relates to a kind of leaf air blower (leaf blower blows leaf machine), such as hand-held leaf air blower and Backpack types
Leaf air blower.
Background technique
Leaf air blower is that air is released to outlet to move a kind of tool of clast (leaf, grass cuttings, dust etc.).Leaf
Air blower includes providing the fan of power by motor (such as electric motor or internal combustion engine).Leaf air blower is usually independent hand-held
Formula unit, or the Backpack type installation unit with hand-held outlet nozzle.Leaf air blower generally includes the sky for being arranged in inlet
Gas entrance sieve, to prevent object from entering fan.Leaf air blower including internal combustion engine further includes fuel tank.Such fuel tank is necessary
It is carried by user, and must be refilled when being empty.Leaf air blower including electric motor generally includes one or more
A battery, thus these batteries must by user carry and for sky when it must be recharged or is replaced.Leaf drum
The weight of blower is a problem because heavy leaf air blower may use it is pretty troublesome and can arm to user and/
Or shoulder causes stress.
The driving of the fan of leaf air blower needs many energy.Accordingly, with respect to the available action time of leaf air blower and leaf
There are contradictory requirements for the weight of air blower.That is, the available action time of the leaf air blower including electric motor can lead to
The size of one battery of increase or multiple batteries is crossed to increase, but therefore the weight of leaf air blower will increase.Similarly, lead to
The size for crossing increase fuel tank can increase the available action time of the leaf air blower including internal combustion engine.However, the weight of leaf air blower
Therefore amount will increase.
The fan of leaf air blower is operated with high power levels, and as described above, the driving of the fan of leaf air blower needs
Big energy.Therefore, air pollution and noise pollution are the problems related to leaf air blower.Noise pollution, that is, leaf during operating
Caused by the noise level of air blower is the entrance to outlet pumped air as motor and fan from leaf air blower.By leaf air blower
Caused air pollution and noise pollution may generate negative health consequences to the humans and animals being located near leaf air blower.
Summary of the invention
It is an object of the invention to overcome or at least mitigate at least some of the above problem and disadvantage.
According to the first aspect of the invention, the purpose by a kind of leaf air blower realize, the leaf air blower include have into
Mouthful and outlet shell, arrange fan in the housing, be configured to driving fan to generate air stream from the inlet to the outlet
Motor, and it is arranged in the air intake sieve of inlet.Air intake sieve is formed by the metal grill for defining opening,
In, it is more than 70% that these openings, which account for the surface area of air intake sieve,.
Since air intake sieve is formed by the metal grill for defining opening, and since opening accounts for air intake sieve
Surface area is more than 70%, therefore during leaf blower operation, obtains low pressure drop in the inlet of leaf air blower machine.Therefore,
Provide the low flow resistance for flowing through the air of leaf blower inlet.Therefore, the energy consumption of motor can be reduced, which improve can
Operating time, and by being equipped with lesser fuel tank, lesser motor and/or a lesser battery for leaf air blower
Or multiple batteries provide the condition for obtaining lighter leaf air blower.
In addition, the noise as caused by leaf air blower can be reduced due to obtaining low pressure drop in the inlet of leaf air blower
Pollution.This is because motor and fan can be with reduced power levels in view of the air of the certain flow by housing outlets
Operation.Further, since motor and fan can be operated with reduced power level, thus providing one kind can be to reduce
Air emission level operation leaf air blower.
Further, since air intake sieve is formed by metal grill, thus providing can prevent object from entering fan
Firm air intake sieve.
It thus provides such leaf air blower, overcomes or at least alleviates at least some above problems and disadvantage.Cause
This, realizes above-mentioned purpose.
Optionally, these openings are distributed generally uniformly on air intake sieve.It thus provides firm air enters
Mouth sieve, and air intake sieve can have the ability for hindering object to pass through air intake sieve, without tube opening duty
The fact that the large scale of the surface area of gas entrance sieve.
Optionally, the width of the part between the adjacent apertures of metal grill is substantially uniformly on entire metal grill
's.It thus provides firm air intake sieve, and air intake sieve can have obstruction object to pass through air intake sieve
The ability of net, without the surface area of tube opening duty gas entrance sieve large scale the fact.
Optionally, width is in the range of 0.7-1.5mm.It thus provides firm air intake sieve, ensures simultaneously
Air intake sieve can prevent object from entering fan.
Optionally, the thickness of metal grill is in the range of 0.3-0.8mm.It thus provides firm air intake sieves
Net, while ensuring to obtain low pressure drop on air intake sieve during the operation of leaf air blower.Furthermore it is ensured that air intake sieves
Net can prevent object from entering fan.
Optionally, metal grill is steel lattice.It thus provides the leaf air blower with firm air intake sieve.
Optionally, these openings are polygons.It thus provides firm air intake sieve.In addition, in view of in leaf
There is improved particle to hinder energy for the low pressure drop obtained on air intake sieve during blower operation, air intake sieve
Power.
Optionally, these openings are hexagons.It thus provides firm air intake sieve.In addition, in view of in leaf
There is improved particle to hinder energy for the low pressure drop obtained on air intake sieve during blower operation, air intake sieve
Power.
Optionally, metal grill is cellular.It thus provides firm air intake sieve.In addition, in view of in leaf
There is improved particle to hinder energy for the low pressure drop obtained on air intake sieve during blower operation, air intake sieve
Power.
Optionally, each of multiple openings include two parallel edges than remaining side length.Therefore, in view of in leaf air blast
The low pressure drop that machine obtains on air intake sieve during operating, air intake sieve have potentially further improved particle
Obstruction ability.
Optionally, metal grill is made of sheet metal, and the through-hole that wherein these openings are configured as in sheet metal.Cause
This, provides firm air intake sieve.In addition, obtaining low pressure on air intake sieve during the operation of leaf air blower
Drop.Additionally, it is provided a kind of air intake sieve, has the condition manufactured in a cost efficient manner.
Optionally, opening is generated by etching some parts of sheet metal.Therefore, these openings can be with complicated pattern
Arrangement to provide the high rigidity and robustness of air intake sieve, and is sieved during leaf blower operation in air intake
Online low pressure drop.
Optionally, opening is generated by some parts of punched metal sheet.It thus provides such air intake sieve
Net has the condition manufactured in a cost efficient manner.
Optionally, metal grill includes the metal wire for weaving into metal grill.It thus provides such air intake sieve
Net has the condition manufactured in a cost efficient manner.
Optionally, each opening is sized such that the size ensures that hindering diameter is more than that the spherical object of 7mm is worn
Cross air intake sieve.It thus provides such leaf air blower: the leaf air blower is during operation in the entrance of leaf air blower
Place has low pressure drop, and the air intake sieve of leaf air blower can hinder object of the width greater than 7mm to pass through.
Optionally, motor is electric motor.It thus provides a kind of environmental-friendly leaf air blower, the leaf air blast function
It is enough to generate low-level air discharge and noise emissions during operation.Further, since leaf air blower includes in leaf air blower
Inlet provides the air intake sieve of low pressure drop, thus provides the item for using electric motor more smaller than other situations
Part, this can reduce the weight of leaf air blower.In addition, leaf air blower has possible more operating times.In addition, than other feelings
Condition provides the condition using a lesser battery or multiple batteries, this can reduce the weight of leaf air blower.
Optionally, leaf air blower includes at least one battery for being configured to power electric motors.Due to leaf air blower
Including providing the air intake sieve of low pressure drop in the inlet of leaf air blower, therefore potentially available battery time increases, and
And compared with other situations, the condition using small a battery or multiple batteries is provided, this can reduce the weight of leaf air blower
Amount.
When study appended claims and it is described in detail below when, other feature and advantage of the invention will become it is aobvious and
It is clear to.
Detailed description of the invention
The example embodiment discussed from features as discussed above will readily appreciate that various aspects of the invention, packet
Include its specific features and advantage, in which:
Fig. 1 shows leaf air blower in accordance with some embodiments,
Fig. 2 shows the air intake sieve unit of leaf air blower shown in FIG. 1,
Fig. 3 shows a part of air intake sieve unit shown in Fig. 2, and
Fig. 4 shows the air intake sieve unit according to some other embodiments.
Specific embodiment
Each aspect of the present invention will be described more fully now.Identical number refers to identical element always.For letter
For the sake of clean and/or clear, it is not necessarily intended to that well-known function or construction is described in detail.
Fig. 1 shows leaf air blower 1 in accordance with some embodiments.Leaf air blower 1 includes the shell with entrance 5 and outlet 7
Body 3.Leaf air blower 1 further includes the fan 9 being arranged in shell 3, and is configured to driving fan 9 to generate from entrance 5 to out
The motor 11 of the air stream of mouth 7.According to the embodiment shown, leaf air blower 1 includes the outlet spray for the outlet 7 for being connected to shell 3
Mouth 2.Outlet nozzle 2 is provided with flexible corrugation tube portion 4.In addition, leaf air blower 1 is included in leaf drum according to the embodiment shown
Handle portion 6 at the upper part of blower 1.When leaf air blower when not in use, handle portion 6 be convenient for leaf air blower 1 transport.
According to the embodiment shown, motor 11 is electric motor.Leaf air blower 1 includes the second shell 8 for accommodating battery 37, and support
Shell 3 and the frame of second shell 8 10.Battery 37 is rechargeable battery, is configured to during the operation of leaf air blower 1
For the power supply of electric motor 11.According to the illustrated embodiment, leaf air blower 1 is knapsack installing type leaf air blower, therefore can be described as carrying on the back
Packet leaf air blower.Leaf air blower 1 includes the shoulder belt for being connected to frame 10.Shoulder belt is invisible in Fig. 1.Shoulder belt allow user with
Leaf air blower 1 is carried on the back at family.That is, being kept during the use of the leaf air blower 1 of the embodiment according to
The shell 3 and the frame 10 of second shell 8 can be shelved on the back of user, and user can hold outlet nozzle 2, with
The air flowed from outlet nozzle 2 is guided, with the clast of mobile leaf, grass cuttings, dust etc..
Leaf air blower 1 further includes the air intake sieve unit 12 being arranged at entrance 5.Air intake sieve unit 12 wraps
Include air intake sieve 13.Air intake sieve 13 is arranged to that the object for being greater than specific dimensions is hindered to enter shell 3.If object
Shell 3 will be entered, then object can damage fan 9 and/or motor 11.
Fig. 2 shows the air intake sieve units 12 of leaf air blower 1 shown in FIG. 1.Air intake sieve unit 12 wraps
The air intake sieve 13 for including frame 14 and being mounted on frame 14.Air intake sieve unit 12 may additionally include air intake
Sealing element or washer between sieve 13 and frame 14.Frame 14 can be provided with polymer material, and as shown in Fig. 2, can be wrapped
One or more attachment devices 16 are included, which, which is configured to facilitate, is installed to leaf air blast for air intake sieve unit 12
On the entrance of machine.Air intake sieve 13 is formed by the metal grill 15 for limiting 17 (i.e. through-holes) of opening.According to the implementation shown
Example, these openings 17 account for the 75% of the surface area of air intake sieve 13.The surface region of air intake sieve 13 is substantially hung down
Directly in the expection air-flow direction for passing through air intake sieve 13.According to other embodiment, opening 17 can account for air intake
70%-90%, 75%-90% or 80%-90% of the surface area of sieve 13.Therefore, according to these embodiments, be open 17 duties
The large scale of the surface area of gas entrance sieve 13.Therefore, it is obtained on air intake sieve 13 during the operation of leaf air blower 1
Low pressure drop.Further, since air intake sieve unit 12 is formed by metal grill 15, so providing firm air intake sieve
13, the fact that account for the large scale of the surface area of air intake sieve 13 without tube opening 17.As shown in Fig. 2, these 17 bases of opening
It is evenly distributed on air intake sieve 13 on this.
Fig. 3 shows a part of air intake sieve 13 shown in Fig. 2.According to the embodiment shown, metal grill 15
Adjacent apertures 17 ', 17 ", 17 " ' between part 23 width w it is basically uniform on entire metal grill 15.Cause
This, provides firm air intake sieve 13, and there is air intake sieve 13 obstruction object to pass through air intake sieve
13 ability, the fact that account for the large scale of the surface area of air intake sieve 13 without tube opening 17.According to the implementation shown
Example, width w are 1mm.According to other embodiment, part 23 between the adjacent apertures 17 ', 17 ", 17 " ' of metal grill 15
Width w can be in the range of 0.7-1.5mm or 0.85-1.15mm, this, which provides to have, hinders object to pass through air intake sieve
The firm air intake sieve 13 of 13 ability, the large scale of the surface area of air intake sieve 13 is accounted for without tube opening 17
The fact.
In addition, opening 17 is hexagon, and defines the metal grill of hexagonal apertures 17 according to the embodiment shown
15 be honeycombed.It thus provides firm air intake sieve 13, and air intake sieve 13 can have obstruction object
By the improved ability of air intake sieve 13, the large scale of the surface area of air intake sieve 13 is accounted for without tube opening 17
It is true.
In addition, according to the embodiment shown, and also as shown in Fig. 2, most of openings 17 include two parallel edges 25, this
Two parallel edges are longer than remaining side 27.Therefore, air intake sieve 13, which can provide, hinders object to pass through air intake sieve 13
Further improved ability, and/or the flow resistance further decreased.According to the embodiment shown, two it is parallel compared with
The distance between long side 25 is 5.5mm.That is, the width of the opening 17 measured on direction d1 shown in fig. 3 is
5.5mm.The width for the opening 17 measured on the d2 of direction being shown in FIG. 3 is 19mm.Therefore, according to fig. 2 and shown in Fig. 3
Embodiment, metal grill 15 has and ensures to hinder the spherical object size that passes through of the diameter greater than 5.5mm.According to other reality
Example is applied, each opening 17 can be dimensioned such that these sizes ensure that diameter is hindered to be greater than 6.35mm or the spherical shape greater than 7mm
Object passes through air intake sieve 13.
According to other embodiment, opening 17 can have polygonal shape in addition to hexagonal, such as triangle, four sides
Shape, pentagon, heptagon or octagon.
According to the embodiment shown, metal grill 15 with a thickness of about 0.5mm.According to other embodiment, metal grill
15 thickness can be in the range of 0.3-0.8mm or 0.4-0.6mm.Therefore it provides rigid and firm air intake sieve 13,
And ensure the low flow resistance by air intake sieve 13.Further, since air intake sieve 13 is by 15 shape of metal grill
At so air intake sieve 13 can have small thickness, this reduce the flow resistances for passing through air intake sieve 13.Metal
The thickness of grid 15 is on the expected flow direction by the air of metal grill 15 (i.e. in the extension perpendicular to metal grill 15
On the direction of direction d1, d2) it measures.The surface region of air intake sieve 13 along metal grill 15 extending direction d1,
D2 extends.According to some embodiments, metal grill 15 is steel lattice, that is, is formed from steel, such as stainless steel, such as SS-EN
10151X10CrNi18-8 1.4310.Metal grill 15 may include protective coating, such as coating and/or paint.
According to the embodiment shown, metal grill 15 is made of sheet metal 29, and opening 17 is configured as sheet metal 29
In through-hole.That is, manufacturing metal grill 15 by some parts 31 for removing sheet metal 29.According to some implementations
Example, some parts 31 by etching sheet metal 29 generate opening 17.Therefore, opening 17 can be arranged with complicated pattern, from
And the high rigidity and robustness of air intake sieve 13 are provided, and during leaf blower operation on air intake sieve 13
Low pressure drop.According to other embodiment, opening 17 is generated by some parts 31 of punched metal sheet 29.
Fig. 4 shows the air intake sieve unit 12 according to some other embodiments.Air intake sieve unit 12
Including frame 14 and the air intake sieve 13 being mounted on frame 14.According to these embodiments, the gold of air intake sieve 13
Belonging to grid 15 includes metal wire 33 of the weaving at metal grill 15.According to the embodiment shown, metal wire 33 limits opening 17, i.e.,
Through-hole.Air intake sieve unit 12 may additionally include sealing element or washer between air intake sieve 13 and frame 14.Frame
Frame 14 can be provided with polymer material, and as shown in Figure 4, it may include one or more attachment devices 16, the attachment device quilt
It is configured to convenient for air intake sieve unit 12 to be installed on the entrance of leaf air blower.
According to the embodiment shown, the weaving of metal wire 33 is at metal grill 15, so that opening shape becomes square.According to another
Outer embodiment, most of openings 17 may include two parallel edges, the two parallel edges are longer than remaining side.According to such implementation
Example, metal wire 33 can weave into metal grill 15, so that opening shape becomes rectangle.
According to the embodiment shown, the width of every wires 33 is 0.5mm, and two extended in the same direction
The distance between adjacent wires 33 are 5mm.Therefore, according to the embodiment shown, on extending direction d1, d2 of metal wire 33
The width of the opening 17 of measurement is 5mm.Therefore, according to the embodiment shown, each opening 17 is sized such that size is true
It protects and spherical object 35 of the diameter greater than 5mm is hindered to pass through air intake sieve 13.According to other embodiment, every wires 33
Width can be in the range of 0.3-0.8mm or 0.4-0.6mm, this provides firm air intake sieve 13, have resistance
Hinder object to pass through the ability of air intake sieve 13, the large scale of the surface area of air intake sieve 13 is accounted for without tube opening 17
The fact.In addition, the distance between two adjacent wires 33 extended in the same direction can be in the model of 3-7mm or 4-6mm
In enclosing.Therefore, the width of the opening 17 measured on extending direction d1, d2 of metal wire 33 can be in the range of 3-7mm or 4-6mm
It is interior.
According to the embodiment shown, opening 17 accounts for the 80% of the surface area of air intake sieve 13.Air intake sieve 13
Surface region be substantially perpendicular to the expection air-flow direction by air intake sieve 13.In addition, air intake sieve
13 surface region extends along extending direction d1, d2 of metal wire 33.According to other embodiment, opening 17 can account for air intake
70%-90%, 75%-90% or 80%-90% of the surface area of sieve 13.Therefore, according to these embodiments, be open 17 duties
The large scale of the surface area of gas entrance sieve 13.Therefore, it is obtained on air intake sieve 13 during the operation of leaf air blower 1
Low pressure drop.Further, since air intake sieve unit 12 includes metal wire 33 of the weaving at metal grill 15, so providing heavily fortified point
Solid air intake sieve 13, the fact that account for the large scale of the surface area of air intake sieve 13 without tube opening 17.
It should be appreciated that foregoing teachings are the explanations to various example embodiments, and the present invention is only by appended claims
It limits.It would be recognized by those skilled in the art that can modified example embodiment, and can combination examples embodiment different characteristic with
Creation is in addition to the embodiment embodiment described herein other than, without departing from the model of the invention being defined by the following claims
It encloses.Embodiment according to figure 1, leaf air blower 1 are Backpack type leaf air blowers.According to other embodiment, as mentioned herein
And leaf air blower 1 can be hand-held leaf air blower.Words " leaf air blower " used herein is intended to include such a work
Tool, the tool are configured to move clast by the air stream of outlet by generating.Therefore, the main application of " leaf air blower "
Field can be another application in addition to moving blade.For example, leaf air blower as mentioned in this article can be used as following drum
Blower is sold and sale: the air blower is configured to mobile clast (such as dust).Therefore, in the entire disclosure, words " leaf
Air blower " " can be configured to move the work of clast by the air stream of outlet by generating by words " air blower " or words
Tool " replaces.
As it is used herein, term " includes " or "comprising" are open, and including one or more spies
Sign, element, step, component or function, but do not preclude the presence or addition of other one or more features, element, step, component,
Function or combinations thereof.
Claims (17)
1. a kind of leaf air blower (1), comprising:
Shell (3) has entrance (5) and outlet (7),
Fan (9) is arranged in the shell (3),
Motor (11) is configured to drive the fan (9) to generate the air from the entrance (5) to the outlet (7)
Stream, and
Air intake sieve (13) is arranged at the entrance (5),
It is characterized in that, the air intake sieve (13) is formed by the metal grill (15) for limiting some openings (17), wherein
The surface area of these openings (17) Zhan Suoshu air intake sieve (13) is more than 70%.
2. leaf air blower (1) according to claim 1, wherein the opening (17) is distributed generally uniformly in the sky
On gas entrance sieve (13).
3. leaf air blower (1) according to claim 1 or 2, wherein the adjacent apertures of the metal grill (15) (17 ',
17 ", 17 " ' width (w) of the part (23) between) is basically uniform on the entire metal grill (15).
4. leaf air blower (1) according to claim 3, wherein the width (w) is in the range of 0.7mm to 1.5mm.
5. leaf air blower (1) according to any one of the preceding claims, wherein the thickness of the metal grill (15) exists
In the range of 0.3mm to 0.8mm.
6. leaf air blower (1) according to any one of the preceding claims, wherein the metal grill (15) is steel mesh
Lattice.
7. leaf air blower (1) according to any one of the preceding claims, wherein the opening (17) is polygon.
8. leaf air blower (1) according to claim 7, wherein the opening (17) is hexagon.
9. leaf air blower (1) according to claim 8, wherein the metal grill (15) is cellular.
10. the leaf air blower (1) according to any one of claim 7-9, wherein each of multiple openings (17) are opened
Mouth includes two parallel edges (25), the two parallel edges are longer than remaining side (27).
11. leaf air blower (1) according to any one of the preceding claims, wherein the metal grill (15) is by metal
Piece (29) is made, and wherein, and the opening (17) is configured as the through-hole in the sheet metal (29).
12. leaf air blower (1) according to claim 11, wherein the opening (17) is by etching the sheet metal
(29) some parts (31) and be made.
13. leaf air blower (1) according to claim 11, wherein the opening (17) passes through sheet metal described in punching press
(29) some parts (31) and be made.
14. leaf air blower (1) according to any one of claim 1 to 10, wherein the metal grill (15) includes knitting
Cause the metal wire (33) of the metal grill (15).
15. leaf air blower (1) according to any one of the preceding claims, wherein each opening (17) has such
Size: the size ensures that hindering diameter is more than that the spherical object (35) of 7mm passes through the air intake sieve (13).
16. leaf air blower (1) according to any one of the preceding claims, wherein the motor (11) is electric motor.
17. leaf air blower (1) according to claim 16, wherein the leaf air blower (1) includes being configured to described
At least one battery (37) of electric motor (11) power supply.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE1850072-8 | 2018-01-24 | ||
| SE1850072A SE543870C2 (en) | 2018-01-24 | 2018-01-24 | Leaf blower |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110067759A true CN110067759A (en) | 2019-07-30 |
| CN110067759B CN110067759B (en) | 2022-07-15 |
Family
ID=67145386
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910065206.5A Active CN110067759B (en) | 2018-01-24 | 2019-01-23 | Blade blower |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN110067759B (en) |
| DE (1) | DE102019101077A1 (en) |
| SE (1) | SE543870C2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110528438A (en) * | 2019-09-12 | 2019-12-03 | 池杭杭 | Afforest device for clearing fallen leaves |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4042861B1 (en) * | 2021-02-12 | 2023-12-20 | Andreas Stihl AG & Co. KG | Protection device for a suction or blowing channel of a working device and working device with a protective device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040077304A1 (en) * | 2002-06-03 | 2004-04-22 | Andreas Pfannenberg | Airflow unit |
| CN203730372U (en) * | 2013-12-31 | 2014-07-23 | 杭州顿力电器有限公司 | Special protecting mesh cover for 120 type double inlet air volute fan |
| CN103953620A (en) * | 2014-05-21 | 2014-07-30 | 无锡杰尔压缩机有限公司 | Rectifying combining device with damping net |
| CN204200312U (en) * | 2013-09-26 | 2015-03-11 | 日本碍子株式会社 | Honeycomb structured body |
| CN204436835U (en) * | 2015-01-16 | 2015-07-01 | 安徽科杰粮保仓储设备有限公司 | A kind of silo special fan |
| CN105587691A (en) * | 2014-10-23 | 2016-05-18 | 山东华联矿业股份有限公司 | Air inlet protection device of local fan |
| CN107110175A (en) * | 2015-03-30 | 2017-08-29 | 皇家飞利浦有限公司 | Fan component |
| CN107532604A (en) * | 2015-04-20 | 2018-01-02 | 株式会社牧田 | Backpack air blower |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1683528A (en) * | 1924-04-23 | 1928-09-04 | Carlton Machine Tool Co | Clutch mechanism for reversing gear |
| US4325163A (en) * | 1980-04-07 | 1982-04-20 | Allegretti & Company | Portable blower-vacuum unit |
| US4644606A (en) * | 1985-04-08 | 1987-02-24 | Mcculloch Corporation | Lawn/garden blower/vacuum |
| US4799287A (en) * | 1987-05-04 | 1989-01-24 | Belanger, Inc. | Blower housing construction |
| JP3741255B2 (en) * | 2000-03-10 | 2006-02-01 | 株式会社丸山製作所 | Centrifugal blower and portable work machine |
| WO2008044314A1 (en) * | 2006-10-13 | 2008-04-17 | Shindaiwa Corporation | Blower |
| JP5169119B2 (en) * | 2007-10-03 | 2013-03-27 | 日立工機株式会社 | Portable blower |
-
2018
- 2018-01-24 SE SE1850072A patent/SE543870C2/en unknown
-
2019
- 2019-01-16 DE DE102019101077.2A patent/DE102019101077A1/en active Pending
- 2019-01-23 CN CN201910065206.5A patent/CN110067759B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040077304A1 (en) * | 2002-06-03 | 2004-04-22 | Andreas Pfannenberg | Airflow unit |
| CN204200312U (en) * | 2013-09-26 | 2015-03-11 | 日本碍子株式会社 | Honeycomb structured body |
| CN203730372U (en) * | 2013-12-31 | 2014-07-23 | 杭州顿力电器有限公司 | Special protecting mesh cover for 120 type double inlet air volute fan |
| CN103953620A (en) * | 2014-05-21 | 2014-07-30 | 无锡杰尔压缩机有限公司 | Rectifying combining device with damping net |
| CN105587691A (en) * | 2014-10-23 | 2016-05-18 | 山东华联矿业股份有限公司 | Air inlet protection device of local fan |
| CN204436835U (en) * | 2015-01-16 | 2015-07-01 | 安徽科杰粮保仓储设备有限公司 | A kind of silo special fan |
| CN107110175A (en) * | 2015-03-30 | 2017-08-29 | 皇家飞利浦有限公司 | Fan component |
| CN107532604A (en) * | 2015-04-20 | 2018-01-02 | 株式会社牧田 | Backpack air blower |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110528438A (en) * | 2019-09-12 | 2019-12-03 | 池杭杭 | Afforest device for clearing fallen leaves |
| CN110528438B (en) * | 2019-09-12 | 2020-10-16 | 永康市创威电动工具制造有限公司 | Afforestation fallen leaves cleaning device |
Also Published As
| Publication number | Publication date |
|---|---|
| SE543870C2 (en) | 2021-08-17 |
| CN110067759B (en) | 2022-07-15 |
| DE102019101077A1 (en) | 2019-07-25 |
| SE1850072A1 (en) | 2019-07-25 |
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