CN102949151A

CN102949151A - Cleaning device for cleaning a surface comprising a brush and a squeegee element

Info

Publication number: CN102949151A
Application number: CN2012103102510A
Authority: CN
Inventors: J·T·范德库伊; B·劳门
Original assignee: Koninklijke Philips Electronics NV
Current assignee: Fansongni Holdings Ltd; Koninklijke Philips NV
Priority date: 2011-08-23
Filing date: 2012-08-22
Publication date: 2013-03-06
Anticipated expiration: 2032-08-22
Also published as: EP2747626A1; CN102949151B; EP2747626B1; JP5960823B2; RU2014111047A; WO2013027164A1; JP2014526934A; CN103764004A; US20140182079A1; RU2603600C2; CN203016862U

Abstract

The present invention relates to a cleaning device for cleaning a surface (20), comprising: -a nozzle arrangement (10)that comprises i)a brush (12) rotatable about a brush axis (14), said brush (12)being provided with flexible brush elements (16)having tip portions (18)for contacting the surface to be cleaned (20)and picking up dirt particles (22)and liquid (24)from the surface (20) during a pick-up period when the brush elements (16)contact the surface (20)during the rotation of the brush (12), wherein a linear mass density of a plurality of the brush elements (16)is, at least at the tip portions (18), lower than 150 g per 10 km, and ii)a single squeegee element (32)for pushing or wiping dirt particles (22)and liquid (24) across or off the surface to be cleaned (20)during movement of the cleaning device (100), said squeegee element (32) being spaced apart from the brush (12)and extending substantially along a longitudinal direction (48)being substantially parallel to the brush axis (14), wherein a suction area (34)is defined within the nozzle arrangement (10) between the squeegee element (32)and the brush (12), -a drive means for driving the brush (12)in rotation, wherein the drive means are adapted to realize a centrifugal acceleration at the tip portions (18)which is, in particular during a dirt release period when the brush elements (16)are free from contact to the surface (20)during rotation of the brush (12), at least 3,000 m/s 2, and -a vacuum aggregate (38)for generating an under-pressure in the suction area (34)for ingesting dirt particles (22)and liquid (24).

Description

The cleaning equipment that is used for the clean surface

Technical field

The present invention relates to the cleaning equipment for the clean surface.The invention still further relates to the nozzle device for such cleaning equipment.

Background technology

Nowadays at first and then finish hard floor surface cleaner by mop wiping ground by ground being carried out vacuum cleaning.Coarse dirt is removed in vacuum cleaning, and mop wipe is wiped away except spot.From the known many utensils of claiming integrated vacuum cleaning and mop wiping that particularly are positioned professional cleaning department of prior art.The utensil that is used for professional cleaning department is specialized in large tracts of land and complete smooth ground usually.They depend on scrub-brush and suction comes from ground removal water and dirt.Home appliances uses the combination of scrub-brush and the scraping mouth of pipe usually.Be similar to the utensil for specialty cleaning department, these products pick up dirt in conjunction with under-voltage from ground from ground removal spot and with scraping with brush.

Usually realize described scraper element by the flexible rubber lip of the bottom that is attached to cleaning equipment, thereby and described scraper element only slide to promote on surface to be cleaned or cleaning dirt particle and liquid through or leave surface to be cleaned.Usually under-voltage dirt particle and the liquid for sucking collection that is generated by vacuum collectors.

Know scraping equipment for the vacuum cleaner system from for example EP0576174A1.Know the sweeper of the combination of using above-mentioned brush and scraping from for example US7665172B1.Wherein said electric floor sweeper comprises sufficient assembly, the edge agitator that this foot assembly has electric motor driven main agitator and is coupled to wheel, thereby thereby the manual propelling of this sweeper rotate this wheel and rotate this edge agitator.But this sweeper does not comprise vacuum source and therefore can not be from the ground water absorbing that will clean.Performance aspect dry ground is therefore quite low.

Known from prior art and also use another vacuum cleaner of the combination of rotating brush and scraping from US4864682A.This vacuum cleaner comprises self-adjusting sweeper band assembly, and this self-adjusting sweeper band assembly is automatically adjusted for the type of the floor surface of using this vacuum cleaner.Assembly used herein needs high suction in order to obtain satisfied cleaning result.The brush that uses in this vacuum cleaner is to have hard bristle to stir for example agitator of carpet (being represented as again adjuster) of ground.These hard hairs have shown quite good shampooing effect, and this permission is removed spot specially with brush.But the performance aspect dry ground is quite low, because this agitator can not be from the ground imbitition.

Vacuum cleaner and the mop integration apparatus known from prior art use a kind of like this brush element usually, and this brush element is sprayed water or cleaning agent actively in order to improve the removal of spot.This equipment uses two scraper element of two scrapings with side that is configured in brush usually, as exemplarily showing in the accompanying drawing 11.Generate suction in the additional passage of vacuum source between described pair of scratch device, in order to again remove the cleaning water from ground.

But in order again to remove the cleaning water that sprays actively from ground, these equipment need to move in direction forward always, the direction of seeing equipment moving, and wherein brush is positioned at the front of this pair scratch device in this direction.Move this equipment in opposite backward directions and will drench ground, because in this moves backward, can't remove the cleaning water that utilizes brush to scatter from scraping.

For at the forward direction of this equipment and rear to the good cleaning result of middle acquisition that advances, therefore known cleaning equipment possesses two scraping mouths of pipe in the both sides of brush.In accompanying drawing 12, exemplarily shown this device.Although this pair scratch device on the both sides of brush shows good cleaning result, it is quite large that the mouth of pipe of these equipment becomes.Again causing unsatisfied limited ability to work.Particularly this large volume mouth of pipe is disadvantageous owing to their the limited degree of freedom of motion and is that use is uncomfortable in the home appliances that usually needs the cleaning narrow corners.

In addition, use the two scratch devices as shown in accompanying drawing 11 and 12 to have many other shortcomings.Because be somebody's turn to do the continuous contact on scraping and ground during the movement of this equipment, this pair scraping may be looked unfamiliar into high scraping over the ground.Particularly when when each side of brush is used two scratch device, this risk that will cause causing on the ground scraping improves.In addition, this pair scraping comprises that they can not for the shortcoming of opening such as the coarse dirt of hair or peanut, push open because coarse dirt usually is involved in the scraping or is scratched, and therefore it can not enter the suction entrance.In addition, this pair scraping mouth of pipe is difficult to cleaning and does not have self-cleaning ability.

In order to overcome these shortcomings, other equipment known in the art use the brush (schematically showing in the accompanying drawing 13) of two separation of configuration parallel to each other.Exemplarily know such cleaning equipment from US1694937.Described file discloses wiping ground machine, and it can tidy up (pick up) dirt by two cylindrical ground brushes that are arranged together parallel and adjacently from ground.These brushes are with High Rotation Speed, and one is moved and another counterclockwise operation clockwise.Like this, adjacent periphery advances to together with sufficiently high speed, vertically upward throws dirt to utilize in fact the relatively large power of flat jet form.Except brush, also use sweeper or scraping, so that dry ground.Because the brush of two separation and additional scraping, also become quite large according to this mouth of pipe of this technical scheme, will again cause the unsatisfied degree of freedom of motion of client.

Summary of the invention

The object of the present invention is to provide a kind of improved cleaning equipment, it compared with prior art shows improved clean-up performance and has simultaneously the undersized mouth of pipe to guarantee the high degree of freedom of motion.

Realize this purpose by a kind of cleaning equipment for the clean surface, this equipment comprises: nozzle device, and it comprises:

I) about brush axle rotatable brush, described brush is equipped with the Flexible brush element, this Flexible brush element has tip portion, during the rotation of this brush during when this brush element contact surface to be cleaned, this tip portion is used for contacting surface to be cleaned and tidy up dirt particle and liquid from this surface during the cycle of tidying up, and wherein the line mass density of a plurality of these brush elements is lower than per 10 kms of 150 grams at least in this point office; And

Ii) single scraper element, be used for during the movement of this cleaning equipment, promoting or cleaning dirt particle and liquid process or leave this surface to be cleaned, described scraper element separates with this brush and extends along the longitudinal direction parallel in fact with brushing axle in fact, wherein define suction areas in the nozzle device between this scraper element and this brush

Be used for driving the drive unit of this brush rotation, wherein this drive unit is adapted to be at this tip portion and realizes centrifugal acceleration, wherein, particularly during the rotation of this brush during the dirt deenergized period when this brush element does not contact this surface, this centrifugal acceleration is 3000m/s at least ², and

Vacuum collectors is used for generating under-voltage in order to suck dirt particle and liquid in this suction areas.

According to a second aspect of the invention, realize above-mentioned purpose by the nozzle device for the correspondence of using at foregoing cleaning equipment in addition.

Define in the dependent claims preferred embodiment of the present invention, should be appreciated that nozzle device scraper required for protection have with cleaning equipment required for protection and dependent claims in the similar and/or identical preferred embodiment of defined preferred embodiment.

Idea behind the present invention is by selecting the density parameter of brush element and the specific combination of the centrifugal acceleration of realization in the point office of brush element during the rotation of the tip portion of brush element, can overcoming by only using a single scraper element shortcoming of above-mentioned two scraping and pair brush clean technologies schemes.From different from the known cleaning equipment of prior art, the nozzle device of current cleaning equipment only comprises single scraper element and preferably only comprises a main brush.Owing to only having a brush and a scraper element, the mouth of pipe volume that therefore becomes is less and show improved operability.

Therefore this cleaning equipment also allows to clean narrow surface in effective mode.Since selected parameter be the Flexible brush element line mass density on be limited to the lower 3000m/s of being limited to of centrifugal acceleration of the tip portion of 150 gram per 10 kms and brush elements ²(realizing this acceleration by drive unit) can realize outstanding cleaning result, wherein the particle in fact disposable removal surface to be cleaned and dry surface to be cleaned.

With compare according to the employed brush that only is used for greasiness removal of prior art, the soft brush with Flexible brush element given such as this paper also has the ability of tidying up water from ground.Therefore, no longer need the second scraper element.Use the above-mentioned parameter about line mass density and centrifugal acceleration of brush element also to show and cause very good greasiness removal characteristic.Owing to as the flexible microfibre fine hair of brush element, during the rotation of this brush during when brush element/microfibre fine hair kiss the earth, can be tidied up from this ground dirt particle and liquid by preferably.The ability of also tidying up liquid with brush causes by capillary and/or other adhesions, wherein this adhesion be since the selected line mass density of this brush element and be used for that driven brush occurs high-speed.Because microfibre fine hair is very thin, so brush is also opened for coarse dirt.

During brush rotation, this brush element utilized their tip portion kiss the earth and tidy up dirt particle and liquid from ground during the cycle of tidying up that described tip portion contacts with ground.Brush element be arranged in mouth of pipe outer cover inner and with surface contactless dirt deenergized period, become and be better than by its adhesion from brush element compressing dirt and liquid particles to such an extent as to the centrifugal acceleration of the tip portion of brush element uprises the centrifugal force that is presented in dirt in this microfibre fine hair and liquid particles that produces.Dirt deenergized period when therefore contactless with the surface when being arranged in mouth of pipe outer cover during the rotation of brush element at them among is release dirt and liquid particles automatically.Except aforesaid centrifugal force, other acceleration force can appear, particularly because the acceleration force that the deformation of this Flexible brush element causes.This deformation can for example occur in when this Flexible brush element in rotation or during running into liquid or dirt particle during kiss the earth.

When losing when contacting with ground during the rotation of brush element at them, the acceleration that occurs in the point office of brush element causes automatically discharging dirt particle and liquid droplet from brush.Owing to can not directly suck whole dirt particles and liquid droplet by vacuum collectors, thus on a small quantity dirt also liquid will splash down and get back on the surface in a kind of like this zone, wherein brush element loses with ground in this zone and contacts.But overcome this impact of heavily spattering this surface by scraper element, wherein this scraper element is heavily spattered liquid and dirt by collecting as a kind of sweeper, thus since apply under-voltagely can suck remaining liquid and dirt subsequently.Therefore scraping guarantees that again the remaining liq and the dirt that are not sucked by vacuum collectors do not leave suction areas.Therefore it close dirt on the side of mouth of pipe outer cover and the suction areas of liquid.Because selected brush combination (can also tidy up liquid except dirt) utilizes single scraper element promotion or cleaning dirt particle and liquid process or leaves this surface to be cleaned, so it can almost clear up dirt particle and the liquid of optical surface.The size that this causes improved sanitary characteristics and reduces simultaneously the mouth of pipe.

Quantity by will scraping is reduced to only single scraper element, not only can reduce the size of outer cover and can significantly reduce the scraping to ground that may be caused by scraping so that mouth of pipe volume is less.In addition, single scraper element more easy cleaning many.

Because scraping separates with brush and extends along preferably parallel with brush axle longitudinal direction in fact in given device, so brush and single scraping have formed suction areas together.This suction areas is under-voltage zone, and this under-voltage zone is used for sucking dirt and the liquid particles of being collected by scraper element or brush.Preferably generated described under-voltage by the vacuum collectors that is connected in any way this suction areas.

Brush preferably is configured in an example of the outer cover of the mouth of pipe, and it is parallel with this brush scraper element to be configured in the opposite side of this outer cover, thereby when when the moving direction of wanting of this equipment is watched, brush and scraper element seem in back each other.Scraping and brush are configured in the bottom side (it is facing surface to be cleaned between the operating period of this equipment) of mouth of pipe outer cover and upward and at least in part give prominence to from this mouth of pipe outer cover from this bottom side.When mobile this equipment, thereby scraper element is slided on surface to be cleaned and promotion or cleaning dirt particle and liquid process or built on stilts, and this brush is tidied up dirt and liquid particles simultaneously from the surface during the rotation of brush.Like this, between this brush and scraper element, create the suction entrance, between the operating period of cleaning equipment, be pumped into actinal surface and treat the clean surface.This suction entrance is opened towards creating above-mentioned under-voltage suction areas.

Under-voltage by using this, suck and siphon away by dirt and the liquid particles of swiping and brush is tidied up from ground.It is clean that therefore this brush and scraper element keep always, thereby do not scatter the risk of dirt on surface to be cleaned.In other words, this causes a kind of self-cleaning brush and scraping.

Brush element can be by the plastic material manufacturing, and wherein polymer and nylon are suitable examples.In any case, the line mass density of a plurality of brush elements is lower than per 10 kms of 150 grams at least in this point office.This guarantees at least in this brush element flexibility of this point office enough with the experience curvature effect and can tidy up dirt particle and liquid droplet from surface to be cleaned.

The degree of the wearing and tearing of this brush element seems and can accept in this external this line mass density range.It is also noted that the described line mass density of mentioning is that unit is that the line mass density that restrains per 10 kms is represented as again the Dtex value.

The experiment that the applicant carries out has proved that the Dtex value in the above-mentioned scope seems to be feasible technically and can to utilize it to obtain good cleaning result.But demonstrated can by application have the lower Dtex value upper limit (as

Dtex value

125,50,20 or even 5 (gram/kms)) brush element further improve the cleaning result.

Utilize the value of back, guarantee to clean that the result is outstanding, water is tidied up the best, wearing and tearing are up-to-date and generate enough low in lip-deep power consumption to be cleaned and heat.Notice in addition, at least during the rotation of brush element at brush with the contactless dirt in surface in deenergized period, no matter what is at the dominant acceleration in point office, minimum of a value 3000m/s ²Also be subject to the support of executed experimental result in environment of the present invention.These experiments have shown that the clean-up performance according to equipment of the present invention utilizes the increase of the angular speed of brush to be improved, and this means the acceleration of the point office that during rotation is increased in brush element.

According to the embodiment of the present invention, this drive unit is adapted to be in this point office and realizes at least 7000m/s ²Centrifugal acceleration and 12000m/s more preferably ²Centrifugal acceleration.When this drive unit is adapted to be the centrifugal acceleration that realizes in the above range brush element, contactless on this centrifugal acceleration and surface to be cleaned during, the liquid droplet that adheres to this brush element might be discharged from as the droplet mist.

The combination of the acceleration at the line mass density of brush element and place, the tip of brush element is the combination that produces the best clean-up performance of rotatable brush, wherein, particularly tidy up whole dirt particles of being run into by brush by brush element and splash down liquid and discharge in the position of mouth of pipe outer cover inside.Certainly, effectively tidying up of particle and liquid is favourable when beginning to clean, and wherein, realizes simultaneously dirt removal and dry run.In view of the fact of having avoided again causing on the surface dirt and/or liquid, effectively discharge process is favourable subsequently.Utilization brush according to the present invention is in conjunction with above-mentioned scraper element and the operating parameter realized by drive unit, and in droplet, so that particle is in fact larger, this allows more simply to filter with particle capture.

In based on the knowledge of prior art, do not find the combination about the above-mentioned parameter of line mass density and the centrifugal acceleration that realizes in the point office of brush element.Prior art even is not concerned about the automatic best-of-breed functionality that only has to be used to the clean surface and can to rise the rotatable brush of dirt and liquid, therefore and can reduce the quantity of needed scraper element, but still realize identical or even the possibility of improved sanitary characteristics.

When at least one rotatable brush being provided and operating as described herein, it is guaranteed and can effectively remove liquid from surface to be cleaned, and also be identical for dirt particle, can catch and/or take away dirt particle with liquid by the brush element of brush.Thereby wash surface and should the surface by the scraper element continuous contact and clean this surface and carry out cleaning course at opposite side in an example of mouth of pipe outer cover by the rotatable brush sub brush, this cleaning course is particularly suitable for being applied on the crust.The example of crust is plate face, side wall of hardstand, window, wall, desktop, hard material etc.

According to preferred embodiment of the present invention, by vacuum collectors generate under-voltage in 3 to 70mbar scope, preferably in 4 to 50mbar scope, and most preferably in 5 to 30mbar scope.The vacuum cleaner of prior art need to be used higher under-voltage in order to reach acceptable cleaning result.But, because the above-mentioned characteristic of brush has realized very good cleaning result in above-mentioned pressure limit.Therefore, also use less vacuum collectors.This has increased the free degree in the selection of vavuum pump.

According to another preferred embodiment of the present invention, the longitudinal direction of brushing axle and/or scraper element is configured to cross the intention moving direction that is preferably perpendicular to cleaning equipment.During the movement of this equipment, therefore brush and scraping can run into along dirt and the liquid particles of their a complete vertical side.The two will be configured to parallel to each otherly by brushing axle and scraper element, set up brush and will have cooperated with the perfection of scraper element, in order to tidy up dirt and liquid particles from ground.The under-voltage suction areas of definition between scraper element and brush, it also extends with the brush axle in fact abreast.

In another preferred embodiment of the present invention, described scraper element comprises for this scraper element being switched to closing position and this scraper element being switched to the switching device shifter of enable possition, wherein this scraper element is adapted to be when when moving this cleaning equipment on the surface to be cleaned in forward direction in this closing position, promote and clean dirt particle and liquid process and leave surface to be cleaned, wherein in this forward direction in the moving direction of this cleaning equipment this scraper element be positioned at this brush back, and wherein in this enable possition when on this surface to be cleaned rear in the direction during mobile this cleaning equipment, can enter suction areas through this scraper element and opening between this surface to be cleaned from the dirt particle on this ground and liquid, wherein In the view of this afterwards in the direction in the moving direction at this cleaning equipment this scraper element be positioned at this brush front.

Moving direction according to cleaning equipment switches to this scraper element the ability permission of closing position in forward direction and the rear good cleaning result to stroke of the mouth of pipe from the enable possition.This opening device is in order to allow dirt to enter during near ground dirt and liquid when scraping before brush.And in closing position, when brush before scraping during near ground dirt or liquid, scraping is closed into the gap on ground, perhaps in other words on the ground cleaning or slide.

In order to guarantee this switch mode, preferably realize this scraper element by the flexible rubber lip, it is flexible about the longitudinal direction of described rubber lip that this rubber lip is adapted to be according to the moving direction of this cleaning equipment.This rubber lip preferably includes at least one column cap, and this column cap is configured near the lower end of this rubber lip, and wherein this rubber lip is applicable to contact surface to be cleaned.Described at least one column cap be adapted to be when on this surface rear in the direction during mobile this cleaning equipment, rise at least in part this rubber lip from the surface, wherein after this in the direction in the moving direction at this cleaning equipment this rubber lip be positioned at this brush front.Because this rubber lip is in rear this rise in advance of the mouth of pipe, wherein near ground dirt, coarse dirt also can enter the mouth of pipe through the opening that creates rear to scraper element between this scraper element and surface to be cleaned in stroke before brush.When moving this cleaning equipment on this surface in opposite forward direction, described column cap and ground are contactless, tidy up dirt and particle water so that rubber lip is free to slide on the ground from described ground.

According to another embodiment, this nozzle device comprises the outer cover that centers at least in part this brush, wherein this scraper element is attached on the described outer cover.In this device, this brush is centered on by this mouth of pipe outer cover at least in part and is outstanding from the bottom side of described mouth of pipe outer cover at least in part, surface to be cleaned is faced in the bottom side of wherein said mouth of pipe outer cover between the operating period of this equipment, thereby, the described surface of this scraper element outside this outer cover of contact during the rotation of this brush.Also preferably this scraper element is attached to the described bottom side of this outer cover, when at mobile this mouth of pipe in described surface, to contact surface to be cleaned.Between the operating period of this equipment, above-mentioned this under-voltage suction areas is used in definition in the space between this brush, described outer cover, this scraper element and surface to be cleaned, wherein this suction entrance of configuration between this scraper element and this brush.

According to another preferred embodiment, this cleaning equipment comprises positioner, this positioner is used for locating this brush axle from the distance on this surface to be cleaned, wherein this distance is less than the radius of this brush, utilize the brush element of full extension to realize during operation indentation with the brush part of Surface Contact, this is retracted within 2% to 12% the scope of this brush diameter.

As a result, brush element is crooked when brush and Surface Contact.Therefore, in case brush element and Surface Contact during the rotation of brush, the outward appearance of brush element just changes to crooked outward appearance from stretching outward appearance, in case and brush element during the rotation of brush, lose with the surface and contact, the outward appearance of this brush element just changes to the stretching, extension outward appearance from crooked outward appearance.

The actual range of brush indentation is about 2% to 12% of the brush diameter of the full extension situation of brush element.In actual conditions, can be by carrying out suitable measurement for example by carrying out the diameter that above-mentioned brush is determined in suitable measurement with the high-speed camera on the speed that operates in this brush or stroboscope.

The deformation of brush element or the speed when deformation occurs more precisely also are subject to the impact of the line mass density of brush element.In addition, the needed power of line mass Effects of Density rotary brush of brush element.When the line mass density of brush element was relatively low, flexibility was relatively high, and caused the power of brush element bending relative low during with Surface Contact to be cleaned when brush element.This means that also the friction horsepower that generates is low between brush element and this surface, thereby prevents hot and the breakage relevant with this surface of giving birth on this surface.Other favorable influences of the relatively low line mass density of brush element are relatively high resistance to wearing, and the chance of being damaged by sharp objects etc. is relatively little, even and the mode that allows also to keep to run into actual out-of-flatness in the surface contact be close to the ability on surface.

When brush element contacts with dirt particle or liquid or be provided with in the situation of brush about the indentation on surface, brush element is crooked.Lose with the surface and contact in case adhered to the brush element of dirt particle and liquid, this brush element straightens, wherein especially the tip portion of brush element to move relative to high acceleration.As a result, be increased in the centrifugal acceleration of the point office of brush element.Therefore, and since according to the described centrifugal force of above embodiment greater than adhesion, liquid droplet and the dirt particle that adheres on the brush element thrown away brush element.By various factors comprise the deformation mentioned and line mass density but also by the value of the driven speed determination of acceleration of brush power.

The factor of playing the part of additional role in the cleaning function of rotatable brush is the density of tying up of brush element.When tying up density when enough large, capillary effect can appear between brush element, and this strengthens liquid from the quick removal on surface to be cleaned.According to the embodiment of the present invention, the density of tying up of brush element is every square centimeter of 30 bunches of brush element at least, and wherein the quantity of every bunch brush element is 500 at least.

Brush element is configured cluster formed additional capillary channel, thereby increase brush is tidied up dirt particle or liquid droplet from surface to be cleaned capillary force.

According to another preferred embodiment, the line mass density of the main body of the sum of brush element (at least on tip portion) is less than per 10 kms of 20 grams.The significant advantage of the Dtex value that this is low is that the wearing and tearing of brush element are minimum.In this case, brush element can be categorized into very soft and flexiblely, these many situations with prior art are opposite.

In order to realize above-mentioned centrifugal acceleration in the point office at brush element, according to an embodiment of the invention, this drive unit is adapted the angular speed in 5000 to 8000 rpms of scopes more preferably in 3000 to 15000 rpms of scopes of realizing this brush in the operating period of this equipment.Applicant's experiment shows, can obtain optimum cleaning result when with at least 6000 rpms angular speed driven brush.

But the centrifugal acceleration of wishing in the point office of brush element not only depends on the angular speed corresponding to the brush frequency, also depends on the radius corresponding to brush diameter.Therefore according to another implementation of the invention, when brush element is in full extension condition lower time, brush preferably has 10 and 20 arrives the 80mm scope and most preferably 35 arrive the interior diameters of 50mm scope in the 100mm scope and more preferably, and wherein, when brush element was in the full extension condition, the length of brush element was in 1 to 20mm the scope preferably in 8 to 12mm the scope.

As mentioned above, the cleaning equipment that provides has the ability that realizes fabulous cleaning result.Even can improve these cleanings result by drenching actively surface to be cleaned.This is particularly advantageous in the situation of greasiness removal.Can be provided in various manners the liquid that uses in the process of the adhesion that strengthens dirt particle and brush element.At first can drench rotatable brush and Flexible brush element by appearing at lip-deep liquid to be cleaned.A mixture that example is water or water and soap of this liquid.Selectively, can be by providing clean liquid for example to provide clean liquid by liquid being exuded on the brush or by next in the hollow core element that liquid is injected into brush to brush to brush actively.

According to an embodiment, therefore preferred this cleaning equipment comprises the device that liquid is provided to brush with the speed that is lower than every centimetre of 6 milliliters of per minute on the width that extends for the brush axle at brush.Seem that the speed that there is no need with higher provides liquid, and above-mentioned speed is enough to make liquid to be finished as the function that is used for the carrying of dirt particle/transmitting device.Therefore, can significantly improve from the ability of surface removal spot to be cleaned.Only use an advantage of liquid seldom to be to process accurate surface, even be indicated as the surface to liquid such as water sensitive.In addition, given will be to the size of the water receiver of the liquid of brush supply be used to holding, autonomous (autonomy) time is longer, the time that namely empties and need to again fill up this water receiver is longer.

Have to be noted that to change into the liquid of splashing and namely will replace from the liquid of surface removal to be cleaned using intentional selection and liquid that supply actively.Example is the coffee of splashing, milk, tea etc.Can and can remove this liquid from this brush element under the impact of foregoing centrifugal force from surface removal liquid to be cleaned in view of aforesaid brush element, this is possible.By the above-mentioned impact that overcomes the surface in the zone of heavily spattering between brush and the scraping by the scraper element of collecting this heavy liquid that spatters and dirt as a kind of sweeper, thereby because the under-voltage of application can suck remaining liquid and dirt.Therefore scraping guarantees that the remaining liq and the dirt that are not sucked by vacuum collectors do not leave suction surface.Therefore the closed suction areas that is used for dirt and liquid on a side of mouth of pipe outer cover.Therefore scraping causes extraordinary cleaning and drying effect with the combination of selected brush.

According to another preferred embodiment, this cleaning equipment also comprises in the side back to this scraper element of brush, generates the device of air stream in the operating period of this equipment contacts the zone on surface to be cleaned at this brush.Described air stream mainly has the function of offsetting the air stream that produces during the rotation of this brush.Owing to be used for driving the high-speed of this brush, may generate rough air in the outside of mouth of pipe outer cover, rough air may force and appear at this lip-deep dirt particle and liquid droplet and blown away from the zone of kiss the earth first of this brush element during rotation.

For fear of this adverse influence, can use the device that generates air stream for the zone that contacts surface to be cleaned at brush, thus this air stream that compensation is caused by brush.Guiding is with the generation suction effect in the antagonism air flow that therefore preferably will generate, and this suction effect forces dirt particle and liquid droplet directly to enter the mouth of pipe of brush front or run into by brush and tidied up by brush as mentioned above subsequently.Realize that the possibility that this air stream generates is to configure little opening in the front of brush between mouth of pipe outer cover and brush, wherein this brush element during rotation leaves this mouth of pipe outer cover.Like this, created the second suction entrance in the front of this mouth of pipe.

According to another implementation of the invention, this cleaning equipment comprises deflector, and deflector is used for contacting brush a position from direction of rotation before this brush during rotation contacts this surface to be cleaned.Like this, by deflector with brush element compressing together, thereby the air that always appears in the space between the brush element in the operating period of equipment is pushed out described space.In the zone between this deflector and this surface to be cleaned, this brush element will again be stretched and move each other and open, in order to increase the zone between the brush element.Being increased in suddenly of space between the brush element generated additional under-voltage in the zone that brush element contacts surface to be cleaned first.Should be additional under-voltagely produced additional suction effect, thereby by its air and also have dirt and liquid particles to be inhaled in the brush.Owing to being inhaled in the brush near the position air that pressed together by surface to be cleaned, so effectively compensated with above-mentioned undesirable turbulent airflow that contacting of surface to be cleaned causes by the rotation of brush and it.

Deflector stops the droplet of water or clean liquid to fall back on the surface of having cleaned in addition.In optimal cases, this deflector is configured to fully contact brush in order to can guarantee above-mentioned functions.In one implementation, thus deflector can for example be contact brush element during the simple part of the inboard outstanding mouth of pipe outer cover of outer cover and the rotation at brush.This deflector itself can be realized by the hard part of mouth of pipe outer cover or can and can be flexible at least in part when contacting with brush element by the flexible member realization that is attached to this mouth of pipe outer cover.

According to another preferred embodiment, this brush be have with spiral helicine form be configured in this brush the periphery bunch the spiral brush.This coiled arrangement of this bunch significantly will reduce needed pumping power.Substantially, in this environment, be favourable if will bunch be configured to have the row at moderate interval.

Description of drawings

Set forth these and other aspect of the present invention and these and other aspect of the present invention will become apparent by described embodiment with reference to one or more embodiments hereinafter described.In the accompanying drawings:

Fig. 1 has shown the schematic cross-section according to the first embodiment of the nozzle device of cleaning equipment of the present invention in the first operating position;

Fig. 2 has shown the schematic cross-section of the first embodiment of nozzle device shown in Figure 1 in the second operating position;

Fig. 3 has shown the schematic cross-section according to the second embodiment of the nozzle device of cleaning equipment of the present invention in the first operating position;

Fig. 4 has shown the schematic cross-section of the second embodiment of nozzle device shown in Figure 3 in the second operating position;

Fig. 5 has shown schematic plan according to the scraper element of cleaning equipment of the present invention in the first operating position (Fig. 5 a) and schematic cross-section (Fig. 5 b);

Fig. 6 has shown the schematic plan of scraper element shown in Figure 5 in the second operating position (Fig. 6 a) and schematic cross-section (Fig. 6 b);

Fig. 7 integral body has shown the schematic cross-section according to cleaning equipment of the present invention;

Fig. 8 has shown the schematic cross-section of embodiment of the brush of cleaning equipment;

Fig. 9 has shown the figure for the relation between the automatically cleaning ability of the angular speed that shows brush and described brush;

Figure 10 has shown the figure for the relation between the automatically cleaning ability of the centrifugal acceleration that shows brush and described brush;

Figure 11 has shown the schematic cross-section according to the first example of the nozzle device of prior art;

Figure 12 has shown the schematic cross-section according to the second example of the nozzle device of prior art; And

Figure 13 has shown the schematic cross-section according to the 3rd example of the nozzle device of prior art.

The specific embodiment

Fig. 1 and 2 has shown the first embodiment according to the nozzle device 10 of cleaning equipment 100 of the present invention.In Fig. 1, nozzle device 10 is shown as being in the first operating position, and nozzle device 10 is shown as being in the second operating position in Fig. 2.Nozzle device 10 comprises the brush 12 about 14 rotations of brush axle.Described brush 12 possesses Flexible brush element 16, preferably realizes brush element 16 by microfibre fine hair.Flexible brush element 16 comprises tip portion 18, and tip portion 18 is adapted to be during contact to be cleaned surperficial 20 and the cycle of tidying up during the rotation of brush 12 and tidies up dirt particle 22 and liquid 24 from described surperficial 20 during when brush element 16 contact surface 20.

Line mass density a plurality of and preferably most of brush element 16 is selected as being lower than per 10 kms of 150 grams at their tip portion 18 at least.In addition, nozzle device 10 comprises in the drive unit of predetermined direction of rotation 26 driven brush 12 motor (not shown) for example.Described drive unit is adapted to be at the tip portion 18 of brush element 16 and realizes centrifugal accelerations, during the rotation of brush 12 when brush element 16 and surface 20 contactless constantly these centrifugal accelerations during dirt deenergized period, be 3000m/s at least particularly ²

Center on brush 12 by mouth of pipe outer cover 28 at least in part.The setting of the brush 12 among the mouth of pipe outer cover 28 preferably is selected as so that brush 12 is given prominence to from the end example 30 of mouth of pipe outer cover 28 at least in part, and this bottom side 30 is in the face of to be cleaned surperficial 20 between the operating period of equipment 100.

Also scraper element 32 is attached to the described bottom side 30 of mouth of pipe outer cover 28.Scraper element 32 is configured to make it at the operating period of equipment 100 Contact to be cleaned surperficial 20.Scraping 32 is used as one type cleaning element, is used for promoting or cleaning dirt particle 22 or liquid 24 processes or leaves surface 20 when mobile cleaning equipment 100.Described scraping 32 preferably separates with brush 12 and extends abreast with brush axle 14 in fact.Mouth of pipe outer cover 28, scraping 32 and brush 12 define suction areas 34 together, and suction areas 34 is positioned among the mouth of pipe outer cover 28.It is also noted that, in implication of the present invention suction areas 34 not only represent between brush 12, scraping 32 and the mouth of pipe outer cover 28 the zone but also during being illustrated in the rotation of brush 12 in brush element 16 space between brush element 16 in the time of mouth of pipe outer cover inside, and it is illustrated in the zone that defines between scraper element 32 and the brush 12.A rear zone is represented as again the suction entrance 36 at suction areas 34 split sheds hereinafter.

By the vacuum collectors 38 that only schematically shows in the accompanying drawings, in suction areas, generate under-voltage in order to suck by brush 12 and scraping 32 dirt particle 22 or the liquid 24 that run into and collect.According to the present invention, described under-voltage preferably in 3 to 70mbar scope, more preferably in 4 to 50mbar scope, and most preferably in 5 to 30mbar scope.This is under-voltage compares quite low with the under-voltage conventional vacuum cleaner of using about 70mbar.But because the above-mentioned characteristic of brush 12 has realized extraordinary cleaning result in above-mentioned pressure limit.Therefore, also can use less vacuum collectors 38.This has increased the free degree of the selection of vavuum pump.

Purport of the present invention is by using the centrifugal acceleration about the above-mentioned parameter of the line mass density of brush element 16 and tip portion 18 places by realizing in the above range brush element 16, can be by realizing extraordinary cleaning result and dirt removal characteristic with single brush 12 and the single scraper element 32 assembling mouths of pipe 10.

With from assembling at least two scrapings (one of each side of brush) of the known needs of prior art or to need to assemble the nozzle device of two brushes that are rotated counterclockwise opposite, in order to reach good cleaning result, technical scheme provided herein causes saving very much space-efficient mouth of pipe size.The good sanitary characteristics of utilizing technical scheme provided herein to realize mainly depends on brush 12, and this is not only can tidy up dirt particle 22 and can tidy up liquid 24 to be cleaned surperficial 20 to be cleaned surperficial 20 because the hard brush in the technical scheme of aforesaid operations parameter and prior art is opposite.

Because brush 12 also has the ability of tidying up water 24, the so two wiper technology schemes that exemplarily show in Figure 11 and 12 no longer include necessity.This mainly depend on water not only since under-voltage being tidied up from ground that generates and by brush 12 by the fact from the rise of land operations ground.Even as shown in fig. 1 rear in the stroke the mobile mouth of pipe through the surface, still rest on water 24 on the surface 20 and dirt particle 22 (namely not being used in under-voltage water and the dirts that directly suck from surface 20 in the suction areas 34 at suction entrance 36 places) thus after through scraping 32 and suction entrance 36, running into brush 12 and raised.Backward stroke like this represents the movement of nozzle device 10 in the moving direction 40 of intention, wherein runs into scraper element 32 before dirt particle 22 and the liquid 24 at brush 12 in direction 40 and runs into dirt particle 22 and the liquid 24 that appears on the surface 20.In Fig. 1, exemplarily show this situation.

In the situation of (in fact usually so doing in order to improve the greasiness removal in the surface 20) of sprinkling water actively at brush 12, if the water that spills can not also again be tidied up by brush 12 then this backward stroke will make clean liquid rest on this surface.Must use in this case additional scraping in order to guarantee the 20 removal water from ground.But according to the present invention because the given characteristic of brush 12, the speed of driven brush 12 and with the combination of scraping 32 be unwanted.

In order to guarantee the good cleaning result in (shown in Fig. 1) backward stroke and (shown in Fig. 2) forward direction stroke, scraper element 32 preferably includes switching device shifter 42, switching device shifter 42 is used for according to the moving direction 40 of the mouth of pipe 20 about surface 20, will swipe 32 to switch to closing position from the enable possition and vice versa.If the mobile mouth of pipe in (shown in Fig. 2) forward direction stroke wherein it seems that from the moving direction 400 of cleaning equipment 100 scraper element 32 is positioned at the brush back, during scraping is in the close position.In this closing position, scraping 32 be adapted to be by slide to promote on surface 20 more or less or cleaning dirt particle 22 and liquid 24 through or leave surface 20.In this forward direction stroke, scraping 32 is collected not raised or is spread across the sweeper of the remaining water on 20 from brush 12 as a kind of subsequently from surface 20.Then can be by the remaining water of the under-voltage suction of using among the suction areas 34 by scraping 32 collections.

On the other hand, when the mobile mouth of pipe 10 in (shown in Fig. 1) backward stroke, will swipe and 32 be configured to be in the enable possition, wherein, scraping 32 is positioned at brush 12 fronts in moving direction 40, thereby will run into this dirt particle 22 or liquid 24 by scraping 32 run into dirt particle 22 on the surface 20 and liquid 24 by brush 12 before.After this in stroke, switching device shifter 42 32 enable possitions that switch to him of will swipe, wherein, dirt particle and liquid from surperficial 20 will enter suction areas 34 by the opening of swiping between 32 and to be cleaned surperficial 20.Like this, dirt particle 22 and liquid 24 also can enter suction areas 34 and run into brush 12 in the position of suction entrance 36, utilize brush 12 to be tidied up from surface 20.

If scraping 32 can not be switched to described enable possition, then only very small amount of dirt particle 22 can arrive suction entrance 36, and most of dirt and liquid will be scratched to be involved in and to promote and can not enter suction areas 34 through surperficial 20.This will cause poor cleaning and drying effect certainly.

In order to guarantee this orientation-dependent switching of scraper element 32, scraping 32 preferably includes flexible rubber lip 46, and flexible rubber lip 46 depends on that the longitudinal direction that the moving direction 40 of cleaning equipment 100 is adapted to be about described rubber lip 46 is flexible.The explanatory view that in Fig. 5 and 6, has shown 32 the amplification of swiping.Fig. 5 has shown the scraping 32 that is in its closing position and Fig. 6 has shown the scraping 32 that is in its enable possition.

Column cap 50 is configured near the lower end of rubber lip 46, near 32 intentions of wherein swiping contact surface 20 this lower end, column cap 50 is adapted to be when rise at least in part rubber lip 46 from surface 20 during mobile cleaning equipment on surface 20 in (shown in Fig. 1) backward direction 40, wherein is positioned at brush 12 fronts at moving direction 40 these rubber lips In the view of rear in direction 40.In this case, rise rubber lip 46, this mainly is owing to occurring in natural frictional force between surface 20 and the column cap 50, this frictional force as one type stopper with deceleration rubber lip 46 and force rubber lip 46 to overturn at column cap 50.Therefore force scraping 32 to be slided at column cap 50, wherein rise rubber lip by column cap, and opening 44 appears in the space between rubber lip 46 and surperficial 20 (the seeing Fig. 6 a and 6b).

Fig. 3 and 4 has shown the second embodiment of nozzle device 10, and Fig. 3 and 4 shows and compares the position that can exchange scraping 32 and brush 12 with (shown in Fig. 1 and 2) first embodiment and can not depart from the scope of the present invention.In this case, scraping 32 fitted to be another side that is in mouth of pipe outer cover 28 with respect to brush axle 14.In this case, scraper element 32 must be in the enable possition certainly when the mobile mouth of pipe 10 in forward direction stroke as shown in Figure 3, and wherein, the mobile mouth of pipe in direction 40 is positioned at brush 12 fronts in moving direction 40 scrapings 32 in direction 40.Otherwise liquid 24 and dirt particle 22 will can not enter respectively suction areas 34 and corresponding suction entrance 36 again.

On the other hand, when according to this embodiment at as shown in Figure 4 rear in the stroke during the mobile mouth of pipe, scraping 32 must be in its closing position, and wherein brush 12 is positioned at scraping 32 fronts and at first runs into dirt particle 22 and liquid 24 in moving direction 40.In this case, scraping 32 is again as the remaining dirt particle 22 on surface 20 slips and collection surface 20 and the sweeper of liquid 24.

By with the second embodiment shown in the first embodiment shown in Fig. 1 and 2 and Fig. 3 and 4 relatively, it is also noted that the other parts of device, namely the property preservation of the characteristic of brush and mouth of pipe outer cover 28 is identical.Even the direction of rotation 26 needs maintenances of brush 12 are identical, and brush element 16 enters mouth of pipe outer cover 28 in the side of the also configuration scraping 32 of mouth of pipe outer cover 28 because the direction of rotation 26 of brush 12 need to be oriented.Otherwise this can not allow the above-mentioned mutual of brush 12 and scraper element 32.

It is identical that but the attribute of brush 12 keeps.Brush 12 preferably has the diameter that arrives in the 80mm scope 20, and the drive unit possibility can be with at least 6000 rpms angular speed rotary brush 12.The size of the brush 12 that the width of brush 12 namely extends in brush axle 14 directions of brush 12 can be the magnitude of 25cm for example.

On the outer surface of the core parts 52 of brush 12, provide bunches 54.Each bunch 54 comprises hundreds of the fibre elements that are called as brush element 16.Brush element 16 can be lower than by for example diameter the polymers manufacturing of per 10 kms of 150 grams in about 10 microns magnitude and Dtex value.On the outer surface of the core parts 52 of brush 12, the density of tying up of brush element 16 can be at least 30 bunch 54 every square centimeter.

Can arrange quite confusedly brush element 16 and namely not have fixing phase mutual edge distance.In addition, the outer surface 56 of mentioning brush element 16 can be inhomogeneous, and this has strengthened the ability that brush element 16 is caught liquid droplet 24 and dirt particle 22.Particularly, brush element 16 can be so-called microfibre, and it does not have level and smooth or circular periphery more or less, but it has coarse and the periphery with groove of star more or less.Brush element 16 does not need identical, as long as the most line mass density of the sum of the brush element 16 of brush 12 satisfies the requirement that is lower than per 10 kms of 150 grams at tip portion 18 at least.

By rotary brush 12, particularly by the brush element 16 of rotary brush 12, tidy up dirt particle 22 and liquid 24 from surface 20, and it is delivered in the assembling position of cleaning equipment 100 inside.Because the rotation of brush 12 realized at the primary importance place with the moment that surface 20 occurs to contact first.The degree of contact increases, until brush element 16 is with a kind of like this form bending, and tip portion 18 contact surfaces 20 of brush element 16 in this curve form wherein.Described tip portion 18 slides through surface 20 and runs into during the course dirt particle 22 and liquid 24, wherein meet and to cause such a case, in this case, take away a certain amount of liquid 24 and/or dirt particle 22 from surperficial 20 removals to be cleaned and by brush element 16 based on adhesion.In this process, brush element 16 can be more or less similarly as being used for catching and the whip of traction particle 22 and 24, this whip be force-closed formula and can be based on remaining on the particle 22,24 with the comparable function of the function of strap brake.In addition, the liquid 24 of tidying up can be with and serve liquid, and wherein liquid line remains in the air, and liquid line moves away from surface 20.The acceleration that occurs at the tip portion 18 of brush element 16 causes losing when contacting when brush element and ground 20 during the rotation of brush element 16, and dirt particle 22 and liquid droplet 24 are released from brush 12 automatically.Owing to can not directly suck whole dirt particles 22 and liquid droplet 24 by vacuum collectors 38, lose the zone of contact from surface 20 at brush element 16, a small amount of dirt and liquid will be trickled down and get back on the surface 20.But, overcome by scraper element 32 and heavily to have spattered surface this impact of 20, wherein scraper element 32 is by collecting this heavy liquid and dirt of spattering as a kind of sweeper, thereby since use under-voltagely can suck remaining liquid 24 and dirt 22.Therefore liquid 24 and dirt 22 can not be inhaled into and again leave suction areas 34.

Because selected technical parameter, brush element 16 is to have soft scraping effect on surface 20, and this helps resist the adhesion of liquid 24 and dirt particle 22 effects on surfaces 20.

Along with brush 12 rotations, the moment of contact until occured finally to lose in mobile continue of brush element 16 on surface 20.When no longer having the contact situation, require brush element 16 to act on the situation of the stretching, extension that hypothesis is original under the impact of the centrifugal force on the brush element 16 in the rotation owing to brush 12.Because brush element 16 is crooked when requiring again to suppose to stretch situation, so the acceleration of additional stretching, extension occurs at tip portion 18 places of brush element 16, wherein brush element 16 moves to the stretching, extension situation from crooked situation, and wherein, the movement of brush element 16 is suitable with the whip of twitch.Acceleration at tip portion 18 places satisfies at least 3000m/s when brush element 16 is almost supposed again to be in the stretching, extension situation ²Requirement.

Under the impact of the power of the tip portion 18 that is acting on brush element 16 during the described movement, discharge a large amount of dirt particles 22 and liquid 24 from brush element 16, because these power are much larger than adhesion.Therefore, force liquid 24 and dirt particle 22 in the direction on surface 20, flying out.Then suck most of liquid 24 and dirt particle 22 by vacuum collectors.By scraper element 32 as mentioned above and in suction areas 34, generate under-voltage, guarantee also being collected and being inhaled into subsequently from the brush 12 unrestrained remainders of getting back to surface 20 of liquid 24 and dirt 22.

Under the impact of acceleration, can discharge liquid 24 with little droplet.For for example by this is favourable for the further separation process that particularly the centrifugal force fan of vacuum collectors 38 is carried out of the vacuum fan collector 38 of rotatable air dirt separation.It is also noted that the power that suction force such as centrifugal force fan apply do not play the part of the role who tidies up liquid and dirt by brush element 16 in said process.But these suction forces are necessary for tidying up the dirt collected by scraping and liquid.

Except the function of foregoing each brush element 16, can help another effect be used to the process of tidying up dirt particle 22 and liquid 24 and be the capillary effect between the brush element 16.Just in this point, the brush 12 with brush element 16 is equivalent to immerse the brush 12 of a large amount of coating, and wherein coating is absorbed based on capillary force by brush 12.

It seems from preamble, brush 12 according to the present invention has following character:

-during the contactless part of the rotation of brush 12, will will have soft bunch 54 of Flexible brush element 16 by centrifugal force and stretch;

-between brush 12 and to be cleaned surperficial 20, may have perfectly adaptive because when soft bunch of 54 contact surface 20 soft bunch 54 with crooked and in the time might being subject to the affecting of centrifugal force, stretch;

-because sufficiently high acceleration force, brush 12 continues cleaning he self, this guarantees the cleaning result that continues;

-because bunches 54 low-down bending hardness, surface 20 generates minimum with heat between the brush 12;

-based on by bunches 54 rather than the fact of as in many conventional equipments, being tidied up liquid 24 by air stream, even in surface 20, fold or depression occur, also can realize tidying up and overall cleaning result very stably from the very stably liquid on surface 20; And

-by bunches 54, with soft but effectively mode is from surface removal dirt 22, wherein the soft based on brush element 16 can realize that the most effective energy uses.

Based on the relatively low value of line mass density, it can also be so that brush element 16 has low-down bending hardness, and can not keep their original-shape when being tied cluster 54.In conventional brush, brush element just rebounds afterwards in release.But the brush element 16 that has as mentioned above low-down bending hardness will can so not done, to such an extent as to because elastic force too little they can not surpass the internal friction power appear between each brush element 16.Therefore, bunches 54 will keep fold after deformation, and will only stretch when brush 12 rotation.

With comprise the conventional equipment be used to the hard brush that contacts surface to be cleaned and compare, can realize obviously better cleaning result according to brush 12 used in the present invention, this is because a kind of like this operation principle, wherein using brush element 16 to tidy up liquid 24 and dirt 22 and brush element 16 according to this operation principle removes liquid 24 and dirt 22 to be cleaned surperficial 20, wherein again takes away liquid 24 and dirt 22 by brush element 16 before the contact surface 20 at liquid 24 and dirt 22 in next one circulation.

Because brush 12 is by the result of the fact of surperficial 20 indentations to be cleaned, brush 12 is used as a kind of gear pump, and it is drawn onto the outside with air from the internal pump of mouth of pipe outer cover 28.This is disadvantageous effect, because dirt particle 22 is blown away and forms the droplet of liquid 24 on a kind of like this position, wherein brush 12 can't touch liquid 24 and dirt 22 and may drop at unexpected moment liquid 24 and dirt 22 during cleaning course on this position.

In order to compensate as mentioned above pump suction effect, suggestion has the device for the zones generation air stream that contacts at brush 12 and surperficial 20, and this air stream is used for compensating the air stream that is generated by brush 12.

Can realize these devices with various ways.May in the first embodiment shown in Fig. 1 and 2, show the first realization, wherein, little opening 58 is configured between mouth of pipe outer cover 28 and the brush 12 in a kind of like this position, and wherein brush element 16 leaves mouth of pipe outer cover 28 during the rotation of brush 12 in this position.This opening 58 is implemented to another suction entrance 60 of suction areas 34, and it uses under-voltage (because in the suction areas 34 described under-voltage) in zone of contact surface 20 first at brush element 16.A kind of like this air stream of this under-voltage generation, this air stream are offset owing to the rotation of brush 12 between the operating period in the undesired turbulent airflow that generates previously of brush 12.

Counteracting the second of the undesired turbulent airflow that generates previously of brush 12 may be to brush 12 assembling brush elements 16 brush 12 be arranged in rows bunches 54, thereby will significantly reduce necessary pumping power.

In addition, as shown in the second embodiment as shown in Fig. 3 and 4, might be with deflector 62 position indentation brush 12 before brush 12 contact surfaces 20 in direction of rotation 26.Deflector 62 has by deflection brush element 16 function that brush element 16 is pinched together.Like this, the air that appears in the space between the brush element 16 is pushed out described space.When again being movable away from one another after brush element 16 is leaving deflector 62, the space between the brush element 16 increases, thereby air will be sucked in the brush 12, has wherein created to be used for the under-voltage of suction dirt 22 and liquid particles 24.This compensates the air stream that is created by rotary brush 12 again.In the PCT/IB2009/054333 of the applicant signature and PCT/IB2009/054334, find the example of described deflector.

Can use the air stream that following equation calculates needs compensation:

Φ _c＝π*f*W*F*(D*I-I ²)

Wherein:

Φ _cAir stream (the m of=needs compensation ³/ s)

F=brush frequency (Hz)

The width of W=brush 12 (m)

F=brush compensating factor (-)

The diameter of D=brush 12 (m)

I=brush 12 is by the indentation (m) on surface 20

In actual example, f=133Hz, W=0.25m, D=0.044m and I=0.003m.It is also noted that about the brush compensating factor, determine this factor based on the experiment of the brush with aforesaid feature, and find that it is 0.4.Utilize described value, find following flow compensated:

Φ _c＝π*133*0.25*0.4*(0.044*0.003-0.0032)＝0.005015m ³/s

Therefore in this example, the compensation airstream with about 5 liters of per seconds is favourable.A kind of this air stream of realizing very well in the realization possibility of exemplarily describing more than can utilizing in practice, thus the disadvantageous pump that can in fact eliminate brush 12 is inhaled effect.

Fig. 7 intactly provides the figure according to cleaning equipment 100 of the present invention.According to this illustrative arrangement, cleaning equipment 100 comprises mouth of pipe outer cover 28, in mouth of pipe outer cover 28 brush 12 rotatably is assemblied on the brush axle 14.Drive unit can be embodied as conventional motor such as motor (not shown), preferably drive unit is connected to or even be placed on the brush axle 14 so that driven brush 12 rotation.Notice that motor also can be positioned on any other suitable positions of cleaning equipment 100.

In mouth of pipe outer cover 28, configuration such as the device of wheel (not shown) in case the rotating shaft 14 that keeps brush 12 with to be cleaned surperficial 20 at a distance of predetermined distance, wherein this distance is selected as so that brush 12 indentations.Preferably, relate to the full extension condition of brush element 16, the scope of this indentation is 2% to 12% non-scope from the diameter of brush 12.Therefore when diameter was in the magnitude of 50mm, the scope of indentation can be to 6mm from 1.

As by mentioned earlier, scraper element 32 is separated by with brush 12 and is attached to the bottom side 30 of mouth of pipe outer cover 28.It extends in fact abreast with brush axle 14, thereby in mouth of pipe outer cover 28, between scraper element 32 and brush 12, define suction areas 34, suction areas 34 have the suction entrance 36, the suction entrance 36 be positioned at mouth of pipe outer cover 28 over against 30 places, surperficial 20 bottom side to be cleaned.

Except mouth of pipe outer cover 28, brush 12 and scraper element 32, cleaning equipment 100 preferably is equipped with following assembly:

-handle 64, it allows easily cleanliness of operation equipment 100 of user;

-holder 66 is used for holding clean liquid 68 such as water;

-refuse collector 70 is used for receiving from surperficial 20 liquid of tidying up 24 to be cleaned and dirt particle 22;

-the circulation road of hollow tube 72 forms for example is used for refuse collector 70 is connected to suction areas 34, and wherein suction areas 34 makes up suction entrances 36 in the bottom side 30 of the mouth of pipe 10.Have to be noted that in implication of the present invention, comprise that the circulation road of hollow tube 72 also can be represented as suction areas 34, wherein in suction areas 34, use above-mentioned under-voltage by vacuum collectors 38; And

-vacuum fan collector 38, it comprises the centrifugal force fan 38 ' of the side that the side with device pipe 72 that is configured in refuse collector 70 is relative.

For the sake of completeness, notice in scope of the present invention, other and/or additional structure details are possible.For example can provide one to be used for deflection by

upcast rubbish

22,24 element, thereby rubbish 22,24 at first experiences deflection, then they finally arrive refuse collector 70.And vacuum fan collector 38 can be configured in refuse collector 70 opposite side and not in a side relative with the side of configuration pipe 72.

According to an embodiment shown in Fig. 8, brush 12 comprises core parts 52.Core parts 52 have the form of hollow tube, and this hollow tube has a plurality of passages 74 through wall 76 extensions of core parts 52.For cleaning fluid 68 is transferred to the inside of the hollow core element 52 of brush 12 from holder 66, can provide the flexible pipe 78 of the inside that for example imports core parts 52.

According to this embodiment, can provide cleaning fluid 68 to hollow core element 52, wherein, during the rotation of brush 12, liquid 68 leaves hollow core element 52 and drenches brush element 16 via passage 74.Like this, liquid 68 also drips or drops on to be cleaned surperficial 20.Therefore, the to be cleaned surperficial 20 cleaned liquid 68 that become drench.This especially strengthens the adhesion of 22 pairs of brush elements 16 of contamination particle and therefore improves from the ability of surperficial 20 removal spots to be cleaned.

According to the present invention, provide the speed of liquid 68 can be quite low to hollow core element 52, wherein maximum rate can be every centimetre of 6 milliliters of per minute on the width of brush for example.

But it is also noted that it is not essential feature that the hollow channel 74 that uses among the brush 12 provides the feature of water 68 actively to be cleaned surperficial 20.Selectively, can by from outside splash brush 12 or be provided at before brush 12 immersed simply clean liquid is provided the cleaning water.Also might namely need to replace using the liquid of having a mind to selection from surperficial 20 liquid of removing to be cleaned with the liquid that has spilt.

By finish tidying up of above-mentioned cleaning water 68 from ground as a kind of scraper element 32 of sweeper, wherein this sweeper arrives suction areas 34 with fluid transport, suction areas 34 its owing to the under-voltage of vacuum collectors 38 sucks, perhaps directly tidy up water from ground by brush 12.Compare with the conventional equipment that comprises the hard brush that to tidy up water, can tidy up water according to brush used in the present invention.Therefore the cleaning result who realizes is obviously better.

About the experiment of having carried out in the next comfortable environment of the present invention of the technical parameter of brush 12, brush element 16 and drive unit.

Hereinafter, one of them experiment and experimental result will be described.The brush of testing has assembled the dissimilar fibrous material that is used for brush element 16, comprises relatively thick fiber and the fiber of relative thin, in addition, ties up density and the Dtex value is changed.Provided the details of various brushes in the form hereinafter.

This experiment is included in rotary brush under the identical condition and estimates cleaning result, wearing and tearing and power for the surface 20 that utilizes brush 12 to process.The indication that this provides the heat on the surface 20 to generate.The result of this experiment of reflection in the form hereinafter, wherein usage flag 5 is indicated best result and is indicated worse result with lower mark.

	Greasiness removal	Water is tidied up	Wearing and tearing	Power to the surface
					Brush
1	5	3	3	3
					Brush 2	5	3	1	4
Brush 3	5	4	4	5
					Brush 4	5	5	5	5

In addition, this experimental results show that brush element 16 is had in the line mass density of 100 to 150 grams in per 10 kilometer range, and obtains useful cleaning result, but seems that water is tidied up, abrasional behavior and power consumption be not so good.Infer that the suitable suitable limiting value of line mass density is per 10 kms of 150 grams.But, obviously utilizing more much smaller line mass density, cleaning result and whole other results are also very good.Therefore, the limiting value that advantageous applications is lower is such as per 10 kms of 125 grams, per 10 kms of 50 grams, 20 per 10 kms of gram or even per 10 kms of 5 grams.Utilize the value of back, guarantee to clean the result outstanding, water tidies up that heat generates enough low on the best, wearing and tearing minimum and power consumption and the surface 20.

Notice, the result of the experiment of having carried out in environment of the present invention is supported in each some time durations that turn of brush 12, dirt some times in deenergized period particularly, the minimum of a value 3000m/s of the dominant acceleration in tip portion 18 places of brush element 16 ², wherein contactless between brush element 16 and surface 20 in deenergized period at this dirt.

Hereinafter, with the result who describes one of them experiment and should test.Condition hereinafter can be applicable to this experiment:

1) brush 12 has diameter 46mm, width is similar to 12cm and polymer brush element 16 has per 10 kms of about 0.8 gram of line mass density, be configured in about 800 brush elements 16 bunches 54 in, approximate 50 bunches 54 every square centimeter be assembled on the motor reel.

2) determine the weight of brush 12 and the assembly of motor.

3) power supply of motor is connected to for the timer that after the operation cycle in operation cycle in 1 second or 4 seconds, stops motor.

4) brush 12 is immersed in the water, thereby brush 12 is flooded fully.Notice that employed brush 12 seems to absorb the water of approximate 70 grams of gross weight.

5) with 1950 rpms angular speed rotary brush 12 and after 1 or 4 seconds, stop brush 12.

6) determine the weight of brush 12 and the assembly of motor, and calculate in step 2) in the difference about dry weight determined.

7) for other magnitude of angular velocities, hereinafter the value repeating step 4 of form indicating particularly) to 6), this form further is included in the weight of the water that still occurs in the brush 12 when stopping after 1 second and 4 seconds, and the value of the relevant centrifugal acceleration that can calculate according to equation hereinafter:

a＝(2*π*f) ²*R

Wherein:

A=centrifugal acceleration (m/s ²)

F=brush frequency (Hz)

The radius of R=brush 12 (m)

In the curve of Fig. 9, describe for the relation that finds between two different weight that stop at angular speed and water, in the curve of Figure 10, described for the relation that finds between two different weight that stop at centrifugal acceleration and water, wherein, indicate the weight of water at each vertical axis of curve.It seems from the curve of Fig. 9, the water that brush 12 discharges when angular speed is lower than about 4000rpm seriously reduces.And seem quite steady being higher than the angular speed of 6000rpm to 7000rmp.

With centrifugal acceleration 3090m/s ²Find the transformation of the water that is discharged by brush 12 on the corresponding angular speed 3500rpm.For the explanation of this fact, Fig. 9 and 10 curve comprise respectively and are used in reference to indicating value 3500rpm and 3090m/s ²Vertical line.

Based on the result of the experiment of explaining in the preamble, can infer during the contactless cycle value 3000m/s about the acceleration at 18 places, tip of brush element 16 ²Be actual minimum, as long as consider the automatically cleaning ability of brush element 16, this ability satisfies the requirement that is lower than at least per 10 kms of 150 grams in tip portion 18 place's line mass density.For obtaining good cleaning result, the suitable performance of self-cleaning function is important as mentioned before.

For the sake of completeness, notice that centrifugal acceleration can be lower than 3000m/s in cleaning equipment 100 according to the present invention ²Reason is to appear at the acceleration of the tip portion 18 of brush element 16 when brush element 16 is straightened may estimate to be higher than normal centrifugal acceleration.This tests demonstration, is 3000m/s about the effective minimum of a value of acceleration ²This is the normal centrifugal acceleration in the situation of this experiment, and it can be to have pass by and have that leeway is stretching to cause more high acceleration by the concrete behavior of brush element 16 during according to actual cleaning equipment 100 of the present invention when the cycle of tidying up, and this is so that the lower possibility that becomes of normal centrifugal acceleration during other cycles (for example dirt is tidied up the cycle) of rotation.

Even the preferred single brush according to the present invention obviously can also use additional brush without departing from the scope of the invention.

Obvious scope of the present invention is not limited to previously discussed example for those skilled in the art, but is not breaking away under the prerequisite of scope of the present invention as defined by the appended claims and can make many changes and modification to it.Although described and described the present invention in detail in drawing and description, it is illustrative or exemplary rather than restrictive that this explanation and description should be regarded as merely.The invention is not restricted to disclosed embodiment.

For the sake of clarity, the full extension condition that it is also noted that brush element 16 is a kind of like this condition, and brush element 16 extends in about the radial direction of the rotating shaft 14 of brush 12 fully in this condition, does not wherein have the bent tip part in brush element 16.When brush 12 rotates with normal operational speeds, can realize this condition, wherein, on this normal operational speeds, can realize 3000m/s at brush element 16 tip portions 18 ²Acceleration.May only have the part of the brush element 16 of brush 12 to be in the full extension condition, and other parts are not because the barrier that brush element 16 runs into is in the full extension condition.Usually, utilize the whole brush elements 16 that are in the full extension condition to determine the diameter D of brush 12.

The tip portion 18 of brush element 16 is that the exterior section of brush element 16 in radial direction is namely away from the part of rotating shaft 14.Particularly, tip portion 18 is be used to the part of tidying up dirt particle 22 and liquid, and it is manufactured into along to be cleaned surperficial 20.In the situation of brush 12 about surperficial 20 indentations, the length of tip portion is approximate identical with indentation.

Can overview of the present invention is as follows.About the above-mentioned parameter of the line mass density of brush element and by the centrifugal acceleration on the tip portion of brush element is realized in the above range, can realize extraordinary cleaning result and greasiness removal characteristic by application by assemble single brush and single scraper element to the mouth of pipe.

At least two scrapings (scraping is in a side of brush) or two brush nozzle device that need outfit to be rotated counterclockwise are opposite with being equipped with from the known needs of prior art, in order to reach good cleaning result, technical scheme of the present invention causes saving very much space-efficient mouth of pipe size.The very good sanitary characteristics of utilizing technical scheme of the present invention to realize mainly depends on the opposite brush (because aforesaid operations parameter) of hard brush that uses in the technical scheme with prior art and not only can tidy up from the surface dirt particle and can tidy up liquid from surface to be cleaned.

Because the ability that this brush is tidied up liquid in addition, two wiper technology schemes no longer include necessity.Owing to only having a scraper element and only have a brush, the mouth of pipe volume that becomes is less.Owing to having reduced the quantity (only having one) of scraping, obviously having reduced scraping.The nozzle device that proposes is open to coarse dirt in brush side at least.This brush and scraping form passage together.Because the splash of brush, suction areas and the quilt of therefore swiping equally continue cleaning.All can utilize together the mouth of pipe very little but that highly effectively only have a scraping and preferably only have a brush to realize well cleaning the result.

Although describe and described the present invention in detail in the description of accompanying drawing and preamble, it is illustrative or exemplary rather than restrictive this explanation and description should being interpreted as, and the invention is not restricted to disclosed embodiment.By the open and claims of study accompanying drawing, this paper, when implementing desired invention, those skilled in the art are appreciated that and realize other distortion for disclosed example.

In the claims, word " comprises " that not getting rid of other elements or step and indefinite article " " or " one " does not get rid of a plurality of.The function of a plurality of described in the claim can be realized in discrete component or other unit.The simple fact of setting forth certain measures in mutually different claims is not indicated the combination that cannot advantageously use these measures.

Any Reference numeral in the claim should be interpreted as limiting its scope.

Claims

1. cleaning equipment that is used for clean surface (20) comprises:

-nozzle device (10), it comprises:

I) about brush axle (14) rotatable brush (12), described brush (12) is equipped with Flexible brush element (16), described Flexible brush element (16) has tip portion (18), described tip portion (18) be used for during the rotation of described brush (12) when described brush element (16) contacts surface to be cleaned (20), contact described surface (20) and during the cycle of tidying up, tidy up dirt particle and liquid from described surface (20), wherein the line mass density of a plurality of described brush elements (16) locates to be lower than per 10 kms of 150 grams at described tip portion (18) at least, and

Ii) single scraper element, (32), be used at described cleaning equipment, (100) promote during the movement or the cleaning dirt particle, (22) and liquid, (24) pass through or leave described surface to be cleaned, (20), described scraper element, (32) with described brush, (12) separate and in fact along and the brush axle, (14) parallel in fact longitudinal direction, (48) extend, wherein in described scraper element, (32) with described brush, (12) nozzle device between, (10) definition suction areas in, (34)

-for the drive unit that drives described brush (12) rotation, wherein said drive unit is adapted to be at described tip portion (18) and locates to realize centrifugal acceleration, wherein, particularly during the rotation of described brush (12) during the dirt deenergized period when described brush element (16) does not contact described surface (20), described centrifugal acceleration is 3000m/s at least ², and

-vacuum collectors (38) is used for generating under-voltage in order to suck dirt particle (22) and liquid (24) in described suction areas (34).

2. cleaning equipment as claimed in claim 1, wherein by described vacuum collectors (38) generate described under-voltage in 3 to 70mbar scope, preferably in 4 to 50mbar scope, most preferably in 5 to 30mbar scope.

3. cleaning equipment as claimed in claim 1, the longitudinal direction (48) that wherein will brush axle (14) and/or scraper element (32) is configured to cross, and is preferably perpendicular to the intention moving direction (40) of cleaning equipment (100).

4. cleaning equipment as claimed in claim 1, wherein said scraper element (32) comprises for described scraper element (32) being switched to closing position and described scraper element (32) being switched to the switching device shifter (42) of enable possition, wherein be adapted to be when upward in forward direction, moving described cleaning equipment (100) in surface to be cleaned (20) in scraper element described in the described closing position (32), promote and clean dirt particle (22) and liquid (24) process or leave described surface (20), wherein in described forward direction on the moving direction (40) of described cleaning equipment (100) described scraper element (32) be positioned at described brush (12) back, and wherein in described enable possition when on described surface to be cleaned (20) upper rear in the direction during mobile described cleaning equipment (100), can enter suction areas (34) through the opening (44) between described scraper element (32) and described surface (20) from the dirt particle (22) on described surface to be cleaned and liquid (24), wherein In the view of described rear in the direction on the moving direction (40) in described cleaning equipment (100) described scraper element (32) be positioned at described brush (12) front.

5. cleaning equipment as claimed in claim 1, wherein said nozzle device (10) comprises the mouth of pipe outer cover (28) that centers at least in part described brush (12), and wherein described scraper element (32) is attached to described outer cover (28).

6. cleaning equipment as claimed in claim 1, also comprise positioner, described positioner is used for locating described brush axle (14) from the distance on described surface to be cleaned (20), wherein said distance is less than the radius of described brush (12), utilize the brush element (16) of full extension to realize the indentation of the brush part that contacts with surface (20) during operation, in described 2% to 12% the scope that is retracted within described brush diameter.

7. cleaning equipment as claimed in claim 1, wherein said brush element (16) tie up 30 bunches (54) every square centimeter that density is brush element (16) at least, and the quantity of the brush element of wherein every bunch (54) (16) is 500 at least.

8. cleaning equipment as claimed in claim 1 is wherein located at tip portion (18) at least, and the line mass density of the main body of the sum of described brush element (16) is less than per 10 kms of 20 grams.

9. cleaning equipment as claimed in claim 1, wherein said drive unit are adapted the angular speed in 5000 to 8000 rpms of scopes more preferably in 3000 to 15000 rpms of scopes of realizing described brush (12) in the operating period of described equipment (100).

10. cleaning equipment as claimed in claim 1, wherein be in full extension condition lower time when described brush element (16), described brush (12) has 10 in the 100mm scope and 20 35 diameters in the 50mm scope in the 80mm scope and most preferably more preferably, and wherein, when described brush element (16) was in the full extension condition, the length of described brush element (16) was in 1 to 20mm the scope preferably in 8 to 12mm the scope.

11. cleaning equipment as claimed in claim 1 comprises the device that liquid (68) are provided to described brush (12) with the speed that is lower than every centimetre of 6 milliliters of per minute on the width that extends for the described brush axle (14) at described brush (12).

12. cleaning equipment as claimed in claim 1, comprise for the side back to described scraper element (32) at described brush (12), contact the device (58,62) that generates air stream in the zone of surface to be cleaned (20) at described brush (12) in the operating period of described equipment (100).

13. cleaning equipment as claimed in claim 1, comprise deflector (62), be used for a position contact brush (12) before the position that during rotation contacts described surface to be cleaned (20) from direction of rotation (26) at described brush (12).

14. cleaning equipment as claimed in claim 1, wherein said brush (12) are to have the spiral brush that is configured in outer bunch (54) of placing of described brush (12) with spiral helicine form.

15. a nozzle device that is used for cleaning equipment as claimed in claim 1 (100) comprises:

-about brush axle (14) rotatable brush (12), described brush (12) is equipped with Flexible brush element (16), described Flexible brush element (16) has tip portion (18), described tip portion (18) be used for during the rotation of described brush (12) when described brush element (16) contacts surface to be cleaned (20), contact described surface (20) and during the cycle of tidying up, tidy up dirt particle and liquid from described surface (20), wherein the line mass density of a plurality of described brush elements (16) locates to be lower than per 10 kms of 150 grams at described tip portion (18) at least, and

-single scraper element (32), be used for during the movement of described cleaning equipment (100), promoting or cleaning dirt particle (22) and liquid (24) process or leave described surface to be cleaned (20), described scraper element (32) separates with described brush (12) and extends along the longitudinal direction (48) parallel in fact with brushing axle (14) in fact, wherein define suction areas (34) in the nozzle device (10) between described scraper element (32) and described brush (12), and

-for the drive unit that drives described brush (12) rotation, wherein said drive unit is adapted to be at described tip portion (18) and locates to realize centrifugal acceleration, wherein, particularly during the rotation of described brush (12) during the dirt deenergized period when described brush element (16) does not contact described surface (20), described centrifugal acceleration is 3000m/s at least ²