CN107405038A - With the cleaning equipment around the rotatable clearer of rotation axis - Google Patents

With the cleaning equipment around the rotatable clearer of rotation axis Download PDF

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Publication number
CN107405038A
CN107405038A CN201680019376.4A CN201680019376A CN107405038A CN 107405038 A CN107405038 A CN 107405038A CN 201680019376 A CN201680019376 A CN 201680019376A CN 107405038 A CN107405038 A CN 107405038A
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CN
China
Prior art keywords
liquid
clearer
cleaning equipment
hollow body
fluid space
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201680019376.4A
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Chinese (zh)
Inventor
M.法伊弗
C.斯泰尔
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Vorwerk and Co Interholding GmbH
Original Assignee
Vorwerk and Co Interholding GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Vorwerk and Co Interholding GmbH filed Critical Vorwerk and Co Interholding GmbH
Publication of CN107405038A publication Critical patent/CN107405038A/en
Pending legal-status Critical Current

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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
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/28—Floor-scrubbing machines, motor-driven
    • A47L11/282—Floor-scrubbing machines, motor-driven having rotary tools
    • 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
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/29—Floor-scrubbing machines characterised by means for taking-up dirty liquid
    • A47L11/30—Floor-scrubbing machines characterised by means for taking-up dirty liquid by suction
    • A47L11/302—Floor-scrubbing machines characterised by means for taking-up dirty liquid by suction having rotary tools
    • 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
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/40—Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
    • A47L11/4036—Parts or details of the surface treating tools
    • A47L11/4041—Roll shaped surface treating tools
    • 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
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/40—Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
    • A47L11/408—Means for supplying cleaning or surface treating agents
    • A47L11/4088—Supply pumps; Spraying devices; Supply conduits

Abstract

The present invention relates to a kind of cleaning equipment (1), especially floor cleaning apparatus, it has around the rotatable clearer of rotation axis (x) (2), for handling surface to be cleaned, wherein, clearer (2) is at least partially constituted as the transparent hollow body of liquid (3) with built-in fluid space (4), wherein, hollow body (3), which has, is used to make the perforate (5) that liquid (6) is expelled to from fluid space (4) from the surface (7) of hollow body (3).In order to avoid liquid is undesirably discharged or seepage, according to the rules, the clearer (2) is configured to, less than by acting on the capillary force (F on liquidK) and centrifugal force (FZ) between dynamic balance determined by minimum speed (nmin) when prevent liquid (6) from being discharged from fluid space (4), and reach the minimum speed (n certainlymin) rise then allow liquid (6) from fluid space (4) discharge.

Description

With the cleaning equipment around the rotatable clearer of rotation axis
The present invention relates to a kind of cleaning equipment, especially floor cleaning apparatus, and it has around the rotatable cleaning of rotation axis Roller, for handling surface to be cleaned, wherein, clearer at least partially constitute for the liquid with built-in fluid space it is transparent Hollow body, wherein, hollow body, which has, to be used to make the perforate that liquid is expelled to from fluid space at the surface of hollow body.
The cleaning equipment of the above-mentioned type is known in the prior art.The 026U1 of document DE 20 2,007 017 are for example public A kind of floor cleaning apparatus is opened, it has the clearer for being configured to wiper rolls, and liquid is supplied from inside for the clearer.For This, clearer has the transparent sleeve body of liquid.The sleeve body is in order to soak the cleaning being placed in from outside on clearer Towel and be provided with through hole, such as in through hole, slit, perforation and other forms.Moistening cleaning tissue and/or be arranged in if necessary sleeve body with Cavernous body between clearer is that tool is absorbent, so as to constantly make the liquid from sleeve body pass through the perforate quilt Suction.By applying press pressure over a surface to be cleaned in mobile cleaning equipment, liquid passes from moistening cleaning tissue or cavernous body It is handed on surface to be cleaned.
This drawbacks of be, constantly liquid is discharged on the surface of hollow body from the fluid space of clearer, Also it is discharged on moistening cleaning tissue and/or cavernous body.Thus, even if when clearer is not used for cleaning process just, but for example Only conveyed, can also discharge liquid.
Therefore the technical problems to be solved by the invention be, there is provided a kind of cleaning equipment, wherein, liquid only it is determined that Under the conditions of the surface of hollow body is just transported to from fluid space, from without undesirable discharge or seepage.
Present invention provide that, the clearer is configured to, less than by acting on liquid in order to solve the technical problem On capillary force and centrifugal force between dynamic balance determined by minimum speed when prevent liquid from being discharged from fluid space, and reach certainly Being risen to the minimum speed then allows liquid to be discharged from fluid space.
Clearer is mainly configured to hand-held guiding, the form of the cleaning equipment preferably guided by handle.But make Alternatively or additionally, to can also relate to ground maintenance of equipment.Especially ground maintenance or cleaning equipment are configured to self-propelled set It is standby.In this kind equipment, the cleaning to surface or space can be carried out with preprogramming or by the automatic acquisition of cleaning path. But it can also relate to window cleaning equipment.In the case where being configured to self-propelled equipment, the equipment can have orientation dress Put, such as the orienting device in laser scanner form, or the equipment can with orienting device, such as in laser scanner shape The orienting device mating reaction of formula.The equipment can also have control device, especially microcomputer, for storing and/or in fact Apply control program,
According to the present invention, determine whether liquid is discharged to hollow body from fluid space according to the current rotating speed of clearer On surface.The understanding being based on herein is on the one hand the liquid in fluid space plays the effect of capillary force, and separately On the one hand the effect of centrifugal force is played when clearer rotates.Capillary force plays a role so that the liquid in fluid space In defined conditions the surface of hollow body can be reached for rising in the perforate of capillary and thus to the composition of hollow body. The effect is triggered by the interfacial tension between the surface tension and liquid of liquid and the inwall of perforate.For described in wetting For the liquid of the material on surface, the liquid rises in the inside of capillary and forms the interface (bent moon of indent herein Face).The characteristic is attributed to absorption affinity.Accordingly, liquid-surface combination, the wherein nonwetting surface of liquid also be present.In this feelings Under condition, the liquid in capillary forms the surface of evagination.Capillary force depends on the surface tension of liquid, the diameter and liquid of capillary Contact angle between body and the inwall of capillary.This can pass through formula
FZ=σ × π × d × cos (θ)
Description, wherein, σ refers to the surface tension of water, and d refers to the diameter of capillary, and θ refers to contact angle.
In addition, when clearer rotates around rotation axis equally also by centrifugal action in the liquid inside fluid space On body.Centrifugal force radially outwards acts on from rotation axis herein, namely the direction effect of the perforate towards hollow body, so that liquid Body can be expelled to surface from fluid space in defined conditions.Centrifugal force depends on diameter d, the fluid space of perforate herein The inside water level h of (when rotated), the density p of liquid, the radius of gravity center r of rotary speed v and liquid.Opened by only observing to be in Liquid level below hole, obtains centrifugal force
For soaking the liquid of material of hollow body, capillary force and centrifugal force are towards identical direction, that is to say, that Radially.But if the material of the nonwetting hollow body of the liquid, then capillary force and centrifugal force then phase opposite sense, so as to By the dynamic balance between capillary force and centrifugal force, reaching makes centrifugal force exceed the capillary force that acts on radially inward and thus Liquid can be made to reach the minimum speed needed for the surface of hollow body from fluid space.
For this by equation FK=FZSolve speed ν.Thus draw
The relation represented by below equation be present in the speed v being calculated and rotating speed n：
ν=2 × π × n × r
The diameter of surface tension, perforate thus according to liquid, contact angle, the center of gravity half of liquid inside fluid space The density of liquid level and liquid inside footpath, (when clearer rotates) fluid space, clearer is calculated for various situations Minimum speed, just liquid can be discharged from fluid space from being reached the minimum speed.If the not up to minimum speed, That is clearer is rotated with relatively low rotating speed, then liquid can not reach the surface of hollow body from fluid space.It is it is possible thereby to logical The rotating speed setting for crossing clearer purposefully controls when liquid is discharged and when do not discharged.And in the simple of cleaning equipment In course of conveying (wherein clearer does not rotate generally), effectively liquid can be prevented to discharge.Comparatively, clearer pair In needing to use the cleaning process of liquid to be rotated higher than the rotating speed of minimum speed, so that centrifugal force exceedes capillary force and liquid Body can be discharged on surface to be cleaned.
Provided in scope of the invention, the contact angle between liquid and the inwall of perforate is more than 90 ° up to 270 °. Contact angle between liquid and the inwall of perforate for the discharge of fluid space is crucial for liquid.If contact angle is big In 90 °, then the cosine of the influence capillary force of contact angle is negative.It means that liquid does not raise to perforate, and in fact liquid It is approaching in the opposite direction, so that capillary force offsets centrifugal force.The present invention utilizes the effect, so as to purposefully select to be used for liquid The combination of materials of body and hollow body, the combination of materials cause the contact angle more than 90 ° up to 270 °.In the case, liquid Capillary force correspondingly overcome centrifugal action.If the rotating speed of clearer is sufficiently large, so that centrifugal force exceedes capillary force, then Liquid is discharged from fluid space.It can generally be discharged by the diameter of the selection of material, rotating speed and perforate to adjust liquid.By This does not need pump, valve, valve or like depending on centrifugal force.
According to the rules, liquid is water, and hollow body has hydrophobic material, especially polytetrafluoroethylene (PTFE) (PTFE).PTFE Can be coating, the coating of especially perforate of hollow body herein.It is big that the hydrophobic property of hollow body causes the water inside perforate to have In 90 ° of contact angle, so that capillary force is towards the direction of fluid space and thus offsets the effect of centrifugal force.It is possible thereby to There is the foregoing dynamic balance between capillary force and centrifugal force.It is also conceivable to using other hydrophobicity materials in addition to PTFE Material, such as beeswax or paraffin.Here, hollow body is made up of hydrophobic material completely, or at least inside fluid space, especially open There is the coating being made up of the hydrophobic material inside hole.
According to the rules, perforate has 0.5 μm of diameter to 2mm.The diameter is sufficiently small, makes whereby inside fluid space Liquid will not be based purely on gravity by perforate from fluid space discharge.In addition, the perforate with such diameter with Capillary effect powerful enough, that is to say, that enough lifting heights of the liquid inside perforate, to realize according to the present invention Operation principle.The capillary that perforate can be drilled out advantageously in the material of hollow body.Alternately, be also suitable for use by Include hollow body made of the material of capillary.But the premise that latter instance is applicable in scope of the invention is, perforate Diameter it is roughly the same or respectively have can understand boundary minimum dimension, so as to determine for liquid from fluid space arrange The overall minimum speed gone out.
In addition it further provides that, hollow body has the perforate of diameter different sizes different from each other, wherein, possess the first diameter Perforate corresponds to the first minimum speed, and wherein, the perforate for possessing Second bobbin diameter corresponds to the second minimum speed.Set according to this Meter mode can define two rotating speeds of clearer, and the discharge of orifice allowing liq is opened from the rotating speed.Thus for example possess compared with The perforate of big Second bobbin diameter is also first shut off in the case of the first minimum speed is reached, and only reaches second most Small rotating speed just allows liquid to discharge.It is possible thereby to realize two or more sets perforates with different-diameter, the perforate is according to turning Speed only allows the wetting of the determination of clearer, and the water of the higher discharge of rotating speed reached is more.
According to the rules, cleaning equipment is dry type cleaning apparatus, wherein, clearer is configured to, with entering by the clearer Under the first corresponding speed conditions of capable surface operation, prevent discharge of the liquid from fluid space, and with the clearer Automatically cleaning corresponding to the second higher rotating speed in the case of, it is allowed to liquid from fluid space discharge.Therefore the present invention is not It is confined to wet type cleaning equipment.In fact, the present invention can also be particularly advantageously applied in dry type cleaning apparatus.Clearer exists This is configured to, and when normally handling surface to be cleaned, used rotating speed is less than the minimum speed needed for liquid discharge.Thus may be used To implement dry cleaning under the first rotating speed by clearer, without making liquid undesirably be discharged from hollow body.Once reach To the minimum speed of clearer, liquid just discharges from fluid space.Such as when the automatically cleaning of clearer should be implemented, for cleaning The rotary setting of roller minimum speed rotating speed higher in other words.Here, clearer is by liquid wash, so as to make to be attached on The dirt cleaned in roller surface removes, and clearer is reused for the cleaning process of dry type after subsequent drying.This Invention is thus, it is possible to surpassingly be applied in the dry type cleaning apparatus of the cleaning apparatus for self with clearer.
In addition it further provides that, cleaning equipment is wet type cleaning equipment, wherein, clearer is configured to, with entering by clearer Under the first corresponding rotating speed of capable surface operation, it is allowed to the liquid of the first amount is discharged from the fluid space of hollow body, and Under especially higher second rotating speed corresponding with the automatically cleaning of clearer, it is allowed to which the liquid of the second amount is arranged from fluid space Go out.Wet type cleaning equipment has two different rotating speed levels for being used for clearer rotation herein.In the surface work by clearer Clearer is rotated with the first rotating speed during industry, and thus the liquid of the amount corresponding with current dynamic balance is arranged from fluid space Go out.It is unrelated with the wet-cleaning on surface, the self-cleaning second rotating speed level for clearer can specify that according to the present invention, it is described Second rotating speed level defines the second higher rotating speed, wherein more liquid can be made in order to rinse clearer and from fluid space Discharge.Generally also it is applicable in this embodiment, it is merely clear by conveying in the case where clearer does not rotate Clean roller will not cause liquid to be discharged from fluid space.Thus undesirable seepage is ideally prevented.
According to the rules, the minimum speed of clearer is at least 150 rpms to 3000 rpms.Given 150 Significantly improved compared with the rotation of the clearer accidentally surprisingly occurred in cleaning equipment course of conveying rpm at this.Equally Ground, the rotating speed when minimum speed is also above clearer pure translational over a surface to be cleaned.In fact, it is given from 150 rpms to 3000 rpms of the range of speeds is clearer in the operation process of clean surface or clearer is directed to Normal rotary speed during the automatically cleaning of sticked dirt.Minimum speed needed for liquid from fluid space discharge is herein by upper Stating influences the parameter determination of centrifugal force and capillary force.
Finally provide, hollow body is wrapped up by cavernous body.Additionally or alternatively it may further specify that, hollow body and/or sponge Body is wrapped up by moistening cleaning tissue, especially microfibre towel.The surface of clearer is equipped with cavernous body and/or moistening cleaning tissue herein.Such as may be used also To be related to clean fabric towel, the dirt removed from surface to be cleaned is incorporated on the clean fabric towel.In the case by Think moistening cleaning tissue particularly advantageously is configured into microfibre towel.This is particularly advantageous to remove dirt from surface to be cleaned.Cleaning Towel or cavernous body are advantageously absorbefacient, so as to store the liquid of determination amount.Substitute moistening cleaning tissue or alternately, in sky Cavernous body can also be set between heart body and moistening cleaning tissue.The cavernous body is especially used as the buffer for liquid.The cavernous body The liquid discharged from the perforate of hollow body is absorbed, and the liquid is discharged on moistening cleaning tissue or surface to be cleaned.
The present invention is more fully illustrated below by embodiment.In the accompanying drawings：
Fig. 1 shows the cleaning equipment according to the present invention,
Fig. 2 shows the clearer according to the present invention,
Fig. 3 shows the sectional view of the clearer of the parameter with definition,
Fig. 4 shows the cross-sectional view of clearer.
Cleaning equipment 1 is shown and described first according to Fig. 1, and the cleaning equipment is in for the wet of wet-cleaning surface to be cleaned The form of formula cleaning equipment.Cleaning equipment 1 has an accessory device 11, the accessory device during cleaning with surface to be cleaned Contact.Accessory device 11 has two clearers 2 herein, and the clearer can be loaded from inside with liquid 6.It is therefore, attached Oil (gas) filling device 1 has storage tank (not shown), and the storage tank can be loaded with liquid 6 by charging port 12.Liquid 6 passes through liquid line 9 (not shown) reach clearer 2 from storage tank.Cleaning equipment 1 is supported over a surface to be cleaned by two clearers 2.Clearer 2 Normal direct of travel r transverse to cleaning equipment 1 extends, the normal direct of travel r by cleaning equipment 1 user operation Motion causes, that is to say, that and it is generally alternately reciprocal, it is changed to next cleaning track as necessary by slightly conversion.Clearer 2 Extend on the almost whole width transverse to direct of travel r of cleaning equipment 1.According to shown arrangement, in cleaning equipment 1 along row It will be respectively arranged in when entering direction r motions before and after a clearer 2 on accessory device 11.Clearer 2 (can not shown by motor Go out) driven, that is to say, that rotated around rotation axis x.It is in cleaning equipment 1 in normal traveling process without to be cleaned During the operation of surface, clearer 2 passively passively drives in other words.In fact, merely due to frictional fit with surface to be cleaned It is formed the passive rotation of clearer 2.From clearly during by clearer 2 to the cleaning on surface and/or in clearer 2 During clean, clearer 2 conversely then rotates on one's own initiative by motor.During cleaning, along clearer 2 and surface to be cleaned Between contact line formed clean edge.Fortune of the scouring edge by interim scouring edge variable at any time relative to surface The dynamic cleaning implemented to the surface, thus removes dirt.In order to carry out wet-cleaning liquid 6 is supplied to clearer 2.It is described Liquid advantageously water, can also be provided with cleaning agent if necessary.Liquid 6 is set to be initially stored in the storage tank of optional equipment 11.It is logical The storage tank is crossed then to supply liquid 6 to clearer 2.Therefore, each clearer 2 has in the axial end region of clearer 2 There is hose line.The free end region of hose line is thus parallel to the rotation axis x extensions of clearer 2.
Fig. 2 shows the detail view of clearer 2.Clearer 2 is disassembled with regard to its different outer cover shows herein.The base of clearer 2 The cylinder type hollow body 3 of side closing is configured in sheet, wherein, the closure member of side is not shown for clarity.Hollow body 3 It is made up of hard plastics, and is applied hydrophobic material namely PTFE herein.Hollow body 3 is configured to liquid and can pass through , there is the perforate 5 for largely extending, being configured to capillary along surface 7 for this hollow body, have equally in the internal structure of hollow body 3 The fluid space 4 of cylinder, the fluid space are used to accommodate liquid 6.Liquid 6 can be by perforate 5 in defined conditions Reach the surface 7 of hollow body 3 from fluid space 4.Perforate 5 has inwall 8, and the inwall is equally applied hydrophobic material.It is empty Heart body 3 is surrounded by the cavernous body 9 being torsionally arranged on the hollow body.Cavernous body 9 is configured to open cell type and with temporary When store liquid 6 performance.Cavernous body 9 is covered by moistening cleaning tissue 10, and moistening cleaning tissue is herein in the form of microfibre towel.Moistening cleaning tissue 10, Cavernous body 9 and hollow body 3 are torsionally connected with each other, and can generally be rotated around rotation axis x.The liquid-containing air of hollow body 3 Between 4 be used as liquid 6 memory.The memory is added by above-mentioned storage tank and hose line.Once cavernous body 9 and/or Moistening cleaning tissue 10 is loaded with liquid 6, then cavernous body and moistening cleaning tissue by over a surface to be cleaned mobile of cleaning equipment 1 just by being made Into pressure liquid 6 is discharged to surface to be cleaned.Cause discharge of the liquid 6 in the region for wiping edge at this.Liquid 6 It is extruded from cavernous body 9 and/or moistening cleaning tissue 10 and is applied to by moistening cleaning tissue 10 on surface to be cleaned herein.In clearer 12 When continuing to roll along the direct of travel r of cleaning equipment 1, dirt is taken off and is transferred on moistening cleaning tissue 10 from surface to be cleaned.
The discharge on surface 7 of the liquid 6 from fluid space 4 to hollow body 3 is determined by the hair that the rotation of clearer 2 is formed Thin power FKWith centrifugal force FZ.Once more than the minimum speed n of clearer 2min, then capillary force F is causedKBy centrifugal force FZExceed.By This can overcome the capillary force F being radially inwardly directed towards based on the hydrophobic property of the inwall 8 of perforate 5K。
Figure 3 illustrates the schematic cross sectional views of clearer 2, wherein having to determine capillary force FKWith centrifugal force FZIt is required Parameter.Shown clearer 2 has hollow body 3.Hollow body 3 has the surface 7 for being equipped with a large amount of perforates 5, the surface bag Around the fluid space 4 for accommodating liquid 6.It is only explaination purpose in the figure and several perforates 5 is shown.However it will be appreciated that , clearer 2 can have a large amount of rules or a perforate 5 irregularly arranged, liquid 6 can be by the perforate from liquid-containing air Between 4 surfaces 7 for reaching hollow body 3.Clearer 2 is shown without cavernous body 9 and moistening cleaning tissue herein.It is clear that this is particularly advantageous to view It is clear, and should not in any way be construed the limitation to embodiment.Perforate 5 has the inwall 8 coated by hydrophobic material.In figure In the state of ideal is shown, the liquid 6 inside fluid space 4 forms rule by clearer 2 around rotation axis x rotation Breakup of Liquid Ring then.The radius of gravity center r and water level h that there is (liquid) ring spin shaft axis x to rise are somebody's turn to do, the water level is equivalent to Breakup of Liquid Ring Width.Perforate 5 has diameter d.Due to hollow body 3 hydrophobic coating and especially perforate 5 inwall 8 hydrophobic coating, Capillary force FKWith radially inwardly facing direction.Thus capillary force with by caused by the rotation of clearer 2 radially to The centrifugal force F of outer sensingKAct on the contrary.
Fig. 4 shows a kind of embodiment with the clearer 2 of a large amount of perforates 5, and the inside 8 of the perforate coats hydrophobicly PTFE.By hydrophobic coating, liquid 6 (being herein water) can not soak the inwall 8 of perforate 5.Thus the evagination in perforate 5 is caused Liquid level.Thus the contact angle θ between liquid 6 in inwall 8 and perforate 5 is more than 90 °.Thereby result in the capillary force F being defined as followsK
FZ=σ × π × d × cos (θ)
It is negative, so that the capillary force and the radially centrifugal force F from rotation axis x outwardlyZAct on the contrary. Herein
Specifically, capillary force FKWith centrifugal force FZKeep balance when clearer 2 around rotation axis x rotary speed v and and then Rotating speed n depends on multiple parameters, namely
The surface tension of liquid：σ,
The diameter of perforate 5：D,
The radius of gravity center of liquid 6：R,
Contact angle between liquid 6 and inwall 8：θ,
Liquid level：H,
The density of liquid 6：ρ.
Values below is provided in shown liquid 6 is the embodiment that water and inwall 8 are coated by PTFE：
The X 10 of σ=72.75-3N/m,
D=1 X 10-3M,
R=15 X 10-3M,
θ=110 °,
H=1 X 10-2M,
ρ=999.97kg/m3
It is v=0.66m/s to go out speed by above-mentioned numerical computations, and this is approximately equal to rotating speed n=423.3 and turns/min.
Minimum speed nminReferring to that liquid 6 to be made can be discharged from fluid space 4 by perforate 5 and reach surface 7 herein must The rotating speed n that must exceed, the liquid are absorbed at the surface 7 by cavernous body 9 and/or moistening cleaning tissue 10.
If cleaning equipment 1 does not contact for example with surface to be cleaned, but is for example conveyed, then clearer 2 turn Fast n is zero, therefore not less than minimum speed nminAnd liquid 6 can not discharge from fluid space 4.On the contrary, when clearer 2 in order to Cleaning process and when being rotated with such as 424 turns/min rotating speed n, liquid 6 can be discharged by perforate 5 from fluid space 4 and Applied to cleaning process.According to the difference of the embodiment of desired cleaning equipment 1, hollow body 3 can also have size not Same perforate 5, the perforate correspond to different minimum speed nmin.Such as it can specify that the first minimum speed nmin, so as to for The cleaning process on surface to be cleaned provides liquid 6, and provides the second minimum speed nmin, so as to the automatically cleaning mistake for clearer 2 Journey carries for liquid 6, and clearer 2 rotates more quickly during automatically cleaning than in the operation process of surface.
List of numerals
1 cleaning equipment
2 clearers
3 hollow bodies
4 fluid spaces
5 perforates
6 liquid
7 surfaces
8 inwalls
9 cavernous bodies
10 moistening cleaning tissues
11 accessory devices
12 charging ports
X rotation axis
R direct of travels
D diameters
N rotating speeds
nminMinimum speed
H water levels
R radius of gravity center
FZCentrifugal force
FKCapillary force
σ surface tension
θ contact angles
ρ density
V speed

Claims (10)

1. cleaning equipment (1), especially floor cleaning apparatus, it has around the rotatable clearer of rotation axis (x) (2), is used for Handle surface to be cleaned, wherein, clearer (2) at least partially constitute for the liquid with built-in fluid space (4) it is transparent Hollow body (3), wherein, hollow body (3) has the surface for being used for making liquid (6) be expelled to hollow body (3) from fluid space (4) (7) perforate (5) at place, it is characterised in that the clearer (2) is configured to, less than by acting on the capillary force on liquid (FK) and centrifugal force (FZ) between dynamic balance determined by minimum speed (nmin) when prevent liquid (6) from fluid space (4) arrange Go out, and reach the minimum speed (n certainlymin) rise then allow liquid (6) from fluid space (4) discharge.
2. cleaning equipment (1) according to claim 1, it is characterised in that between liquid (6) and the inwall (8) of perforate (5) Contact angle (θ) be more than 90 ° up to 270 °.
3. cleaning equipment (1) according to claim 1 or 2, it is characterised in that liquid (6) is water, and hollow body (3) With hydrophobic material, especially polytetrafluoroethylene (PTFE) (PTFE).
4. the cleaning equipment (1) according to any one of the claims, it is characterised in that perforate (5) has 0.5 micron To 2 millimeters of diameter (d).
5. the cleaning equipment (1) according to any one of the claims, it is characterised in that hollow body (3) has diameter (d) perforate (5) of different different sizes, wherein, the perforate (5) with the first diameter (d) corresponds to the first minimum speed (nmin), and wherein, the perforate (5) with Second bobbin diameter (d) corresponds to the second minimum speed (nmin)。
6. the cleaning equipment (1) according to any one of the claims, it is characterised in that cleaning equipment (1) is dry type Cleaning equipment, wherein, clearer (2) is configured to, in corresponding first turn of the surface operation with being carried out by the clearer (2) In the case of fast (n), prevent discharge of the liquid (6) from fluid space (4), and with the automatically cleaning of the clearer (2) corresponding to The second higher rotating speed (n) in the case of, it is allowed to liquid (6) from fluid space discharge.
7. the cleaning equipment (1) according to any one of the claims, it is characterised in that cleaning equipment (1) is wet type Cleaning equipment, wherein, clearer (2) is configured to, in the first corresponding rotating speed of the surface operation with being carried out by clearer (2) (n) under, it is allowed to the liquid (6) of the first amount is discharged from the fluid spaces (4) of hollow body (3), and with clearer (2) from Under the second especially higher rotating speed (n) corresponding to cleansing phase, it is allowed to which the liquid (6) of the second amount is discharged from fluid space.
8. the cleaning equipment (1) according to any one of the claims, it is characterised in that the minimum of clearer (2) turns Speed (nmin) it is at least 150 turns/min to 3000 turns/min.
9. the cleaning equipment (1) according to any one of the claims, it is characterised in that hollow body (3) is by cavernous body (9) surround.
10. the cleaning equipment (1) according to any one of the claims, it is characterised in that hollow body (3) and/or sea Continuous body (9) is surrounded by moistening cleaning tissue (10), especially microfibre towel.
CN201680019376.4A 2015-04-13 2016-04-12 With the cleaning equipment around the rotatable clearer of rotation axis Pending CN107405038A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102015105598 2015-04-13
DE102015105598.8 2015-04-13
PCT/EP2016/057957 WO2016166075A1 (en) 2015-04-13 2016-04-12 Cleaning device having a cleaning roller that can be rotated about an axis of rotation

Publications (1)

Publication Number Publication Date
CN107405038A true CN107405038A (en) 2017-11-28

Family

ID=55701990

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201680019376.4A Pending CN107405038A (en) 2015-04-13 2016-04-12 With the cleaning equipment around the rotatable clearer of rotation axis

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Country Link
EP (1) EP3282914B1 (en)
JP (1) JP2018511360A (en)
CN (1) CN107405038A (en)
DE (1) DE102015115151A1 (en)
ES (1) ES2743793T3 (en)
TW (1) TWI692339B (en)
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DE102015115151A1 (en) 2016-10-13
EP3282914B1 (en) 2019-06-12
EP3282914A1 (en) 2018-02-21
ES2743793T3 (en) 2020-02-20
TW201700057A (en) 2017-01-01

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Application publication date: 20171128