EP3772315B1 - Cleaning device - Google Patents

Cleaning device Download PDF

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Publication number
EP3772315B1
EP3772315B1 EP20190092.5A EP20190092A EP3772315B1 EP 3772315 B1 EP3772315 B1 EP 3772315B1 EP 20190092 A EP20190092 A EP 20190092A EP 3772315 B1 EP3772315 B1 EP 3772315B1
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EP
European Patent Office
Prior art keywords
cleaning
pump
liquid
cleaning device
outlet nozzle
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.)
Active
Application number
EP20190092.5A
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German (de)
French (fr)
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EP3772315A1 (en
Inventor
Thomas Diehl
Eric Bosscher
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Leifheit AG
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Leifheit AG
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Publication date
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Publication of EP3772315A1 publication Critical patent/EP3772315A1/en
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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
    • A47L13/00—Implements for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L13/10—Scrubbing; Scouring; Cleaning; Polishing
    • A47L13/20—Mops
    • A47L13/22—Mops with liquid-feeding devices
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/02—Floor surfacing or polishing machines
    • A47L11/04—Floor surfacing or polishing machines hand-driven
    • A47L11/08—Floor surfacing or polishing machines hand-driven with rotating tools
    • A47L11/085—Floor surfacing or polishing machines hand-driven with rotating tools with supply of cleaning agents
    • 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
    • A47L11/02—Floor surfacing or polishing machines
    • A47L11/10—Floor surfacing or polishing machines motor-driven
    • A47L11/14—Floor surfacing or polishing machines motor-driven with rotating tools
    • A47L11/18—Floor surfacing or polishing machines motor-driven with rotating tools the tools being roll brushes
    • A47L11/185—Floor surfacing or polishing machines motor-driven with rotating tools the tools being roll brushes with supply of cleaning agents
    • 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
    • A47L11/02—Floor surfacing or polishing machines
    • A47L11/20—Floor surfacing or polishing machines combined with vacuum cleaning devices
    • A47L11/201—Floor surfacing or polishing machines combined with vacuum cleaning devices with supply of cleaning agents
    • 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
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/02—Nozzles

Definitions

  • the invention relates to a cleaning device according to the preamble of claim 1.
  • the invention relates to a cleaning device with a fresh water tank, at least one outlet nozzle, a liquid inlet between the fresh water tank and the at least one outlet nozzle, a pump for conveying liquid from the fresh water tank to the outlet nozzle and a control device for controlling the cleaning device in a cleaning mode.
  • wet / dry vacuum devices are understood as cleaning devices. These cleaning devices preferably have several outlet nozzles with very small diameters, preferably with diameters smaller than 1.3 mm.
  • a cleaning device of the type mentioned above is from the GB 2 453 139 A known.
  • the known cleaning device has a fresh water tank and an outlet nozzle, wherein liquid, in particular water or cleaning liquid, is conveyed with the pump through the outlet nozzle.
  • liquid in particular water or cleaning liquid
  • the inlet line between the pump and the outlet nozzle is not vented in the generic devices, so that after the cleaning device has been switched off, residual liquid still remains in the inlet line and in the outlet nozzle.
  • the residual liquid dries and, depending on the degree of hardness of the liquid used, leaves limescale residues in the outlet nozzles or the supply line.
  • the lime residue can partially or completely close the outlet nozzle in a short time, which limits the functionality of the cleaning device.
  • the cleaning devices must be descaled more frequently in order to ensure that they are functional and also to avoid damage to the cleaning device that may be associated with the decalcification.
  • a care device for bowling lanes is known in which care fluid is drawn in via air nozzles which are constructed in the manner of a jet pump and which suck in care fluid in the air nozzle via a negative pressure and spray it onto the ground as a misted fluid / air mixture.
  • dripping of the care fluid is avoided by first interrupting the fluid flow and only later the air flow.
  • the object of the invention is to provide a cleaning device which overcomes the above-mentioned disadvantages in a simple and inexpensive manner.
  • the cleaning device now also has a device cleaning mode and the control device is designed in such a way that in the device cleaning mode the pump is initially actuated in a rinsing phase in order to pump liquid from the fresh water tank and then in a drying phase such compressed air through the supply line and the at least one Outlet nozzle is pumped so that the liquid is dried in the outlet nozzle or the outlet nozzles.
  • the compressed air can preferably be provided by the pump, with air for providing the compressed air in the drying phase in particular being able to be taken from the liquid tank by the pump.
  • the device cleaning mode has the advantage that it can be carried out particularly quickly and easily. As a result, the user of the device is more inclined to perform it regularly and the risk of premature calcification of the outlet nozzle of the cleaning device is significantly reduced.
  • the cleaning device advantageously has an additional decalcifying mode in which the device is decalcified with a decalcifying agent can be. However, this takes much longer than the device cleaning mode, which only takes 1 to 2 minutes.
  • the regular decalcification or maintenance intervals can be selected longer, which saves time and effort.
  • the control device is particularly preferably set up to carry out the device cleaning mode in a time-controlled manner.
  • the fresh water tank of the cleaning device is advantageously filled up to a device cleaning level. Then the fresh water tank is first emptied during the rinsing phase. The pump then sucks in air from the empty tank, which is then made available as compressed air for the drying phase.
  • a particularly user-friendly embodiment of the invention provides that the cleaning device has a level detection of the fresh water tank and the control device is set up in such a way that the drying phase is carried out in a time-controlled manner when the level in the liquid tank falls below a predefined threshold. This has the advantage that the user does not have to fill the cleaning device exactly up to the device cleaning level.
  • the rinsing phase is then operated until the fresh water tank is empty.
  • the drying phase is then initiated in a time-controlled manner by the control device.
  • a time control of the device cleaning mode, in particular the drying phase is advantageous and may be necessary, depending on the type of pump, to avoid damage to the pump, since the cooling liquid is missing in the drying phase.
  • the cleaning device has a cleaning brush and / or a cleaning roller.
  • the outlet nozzle is or the outlet nozzles are designed and arranged such that the cleaning brush and / or cleaning roller can be applied to the cleaning brush or cleaning roller for a cleaning operation with liquid from the outlet nozzle.
  • the cleaning brush or the cleaning roller is then cleaned and cleaned in accordance with the procedure described above at least partially dried. This contributes positively to the durability of the cleaning brush or the cleaning roller.
  • the cleaning device preferably has a level detection of the fresh water tank and the control device is set up in such a way that the pump switches off in the cleaning mode after the level in the liquid tank falls below a defined threshold and a time-controlled sequence is provided for the device cleaning mode, the device being switched off when the level falls below the Level threshold is deactivated.
  • the device cleaning mode is an operating mode that is to be differentiated from the cleaning mode and which must preferably be actively switched on by the user of the device.
  • the control device is preferably set up in such a way that actuation of an actuation element assigned to the cleaning device triggers the device cleaning mode.
  • the actuating element can in particular be arranged on the cleaning device.
  • a switch is provided on the cleaning device to switch the cleaning device on and off.
  • the actuating element can be formed by the switch, the cleaning device being transferred to the device cleaning mode by the control device only through a defined actuation sequence, in particular by actuating the switch over a period of a few seconds.
  • An advantageous embodiment of the cleaning device provides that the control is set up in such a way that the pump is operated intermittently in the rinsing phase of the device cleaning mode, in particular with two switch-on phases and two switch-off phases of the pump, the switch-on phases preferably being shorter than the switch-off phases. Furthermore, it can be provided that the pump and the control device are set up in such a way that they are operated in the rinsing phase and / or in the drying phase of the device cleaning mode with a volume flow of 220 ml / s.
  • the cleaning devices in particular when designed as a wet / dry vacuum device, preferably provide that the cleaning brush or the cleaning roller can be controlled separately.
  • the control device can be set up in such a way that the cleaning brush or the cleaning roller is operated continuously in the rinsing phase, the cleaning brush or the cleaning roller, in particular, being operated at maximum speed.
  • a defined amount of liquid is required, which should preferably be provided in the fresh water tank.
  • means are preferably provided which display and / or detect the amount of liquid required for the rinsing phase.
  • the amount of liquid required for the rinsing phase is preferably detected separately by evaluating the level detection.
  • a separate pressure accumulator can be provided to provide the compressed air in the drying phase of the device cleaning mode.
  • the compressed air reservoir is preferably arranged between the pump and the outlet nozzle.
  • the pressure accumulator can, for example, also be formed by the feed line, wherein for example a shut-off means in the form of a switchable valve can be provided between the pump and the outlet opening.
  • the compressed air reservoir can preferably be filled by the pump.
  • FIG. 1 an inventive wet / dry suction device 1 with control device 13 is shown.
  • the wet / dry vacuum device 1 is designed here as a so-called stick device, ie it has a handle 5, at the upper end of which a handle 4 is provided, via which the user can switch on and guide the wet / dry vacuum device 1.
  • a housing 2 is provided, in which a dirty liquid tank 7 is removably arranged.
  • the wet / dry suction device 1 shown here is not just a suction device, but is designed as a combination device for cleaning and then vacuuming hard surfaces. For the cleaning function, it has a fresh water tank 6 in which fresh water or cleaning liquid is stored for supply to an application device which is arranged in the front functional area in addition to the lower suction nozzle 3.
  • An actuating switch 14 is provided in the area of the handle 4.
  • the Figure 2 shows a schematic representation of the liquid flow in the wet / dry suction device from Figure 1 in one possible embodiment.
  • the liquid guide comprises the liquid tank 6, a pump 8, inlet lines 9 and the outlet nozzle 10.
  • the application device in the form of a cleaning roller 11 is provided with a textile covering as a cleaning cover 12.
  • a control device 13 of the cleaning device 1 is also shown, via which the wet / dry suction device is controlled.
  • the arrangement and configuration of the components are shown purely schematically. For example, instead of the illustrated outlet nozzle 10, a plurality of nozzles and / or other nozzle shapes can also be provided.
  • the pump 8 pumps liquid from the liquid tank 6 through the feed lines 9 into the outlet nozzle 10 and from there it is applied to the cleaning roller 11, whereby the cleaning cover 12, which is designed as a textile cover, is moistened.
  • the cleaning roller 11 is mechanically connected to an electric motor which sets the cleaning roller 11 in rotation.
  • a separate roller motor is preferably provided as the electric motor only for driving the cleaning roller 11.
  • the speed of the cleaning roller 11 can be regulated. As a result of the rotation of the cleaning roller 11, it is evenly moistened by the outlet nozzle 10.
  • the control device 13 is set up to control the pump 8, the roller motor (not shown) and also the suction unit (also not shown) of the wet / dry suction device 1 as a function of an operating mode of the cleaning device 1.
  • the wet / dry vacuum device 1 now has a cleaning mode and a device cleaning mode as operating modes.
  • the pump 8 pumps liquid from the liquid tank 6 through the feed line 9 into the outlet nozzle 10 and from there applied to the cleaning roller 11.
  • the roller motor drives the cleaning roller 11, as a result of which the cleaning cover 12, which is designed as a textile cover, is moistened.
  • the suction unit not shown here.
  • the device cleaning mode must be switched on by the user of the wet / dry vacuum device 1.
  • the actuating button 14 for switching on the wet / dry vacuum device 1 is assigned twice. A longer pressing of the actuating button 14 causes the control device 13 to transfer the wet / dry vacuum device 1 to the device cleaning mode.
  • the device cleaning mode comprises at least a rinsing phase and a drying phase.
  • the rinsing phase on the one hand the supply lines 9 and the outlet nozzle 10, but also the cleaning cover 12 of the cleaning roller 11, which is formed by the textile covering, are rinsed and thus cleaned.
  • compressed air is pumped through the feed line 9 and the outlet nozzle 10 against the cleaning roller 11. In this way, the inlet line 9 and the outlet nozzle 10 are freed from the remaining liquid.
  • the cleaning cover 12 of the cleaning roller 11 is also at least partially dried.
  • a defined amount of liquid must be provided in the liquid tank 6 to carry out the rinsing phase.
  • an indicator marking can be provided on the liquid tank 6, up to which the liquid tank 6 must be filled for the device cleaning mode.
  • the liquid tank 6 is completely emptied during the rinsing phase.
  • the drying phase takes place.
  • the pump 8 sucks in air from the empty liquid tank 6 and pushes it through the inlet line 9 and the nozzle 10.
  • the pump 8 is set up so that it can apply sufficient pressure for proper drying.
  • the supply of compressed air by the pump 8 can also be supported by a compressed air reservoir and / or a valve circuit.
  • the embodiment described represents a particularly simple solution that does not require any additional sensors.
  • the fill level can also be detected by one or more sensors.
  • control sequence includes the control of the pump 8, the roller motor, the suction unit and an LED for displaying the operating mode by the control device 13.
  • the device cleaning mode 16 is initiated by pressing the actuating button 14 for a longer period of time.
  • the user is visually and haptically made aware of the beginning of the device cleaning operation.
  • the LED on the cleaning device 1 is activated to flash and the cleaning roller 11 is switched to a warning mode 16, with the roller motor causing the cleaning roller 11 to vibrate in a clocked mode in the warning mode 16.
  • the rinsing phase is then carried out.
  • the control device 13 switches on the suction unit, the roller motor and the pump 8.
  • the cleaning roller 11 is operated at maximum speed during the entire rinsing phase.
  • the pump 8, on the other hand, is switched on and off alternately.
  • the control device 13 initiates the drying phase. This initially includes briefly switching off the suction unit and roller motor. Then both are switched on again, as can be seen from Table 1. The roller motor rotates again at maximum speed. The end of the drying phase is then made known to the user haptically by the warning mode 16 of the roller motor. The pump 8 is operated at full power during the entire drying process and thus generates the compressed air for drying. The device cleaning mode is ended by switching off all motors and the LED by the control device 13.
  • the top graph forms the LED control signal 20 of the LED. This is shown on a different time scale than the three other graphs below. The graph is only intended to show the blinking of the LED during operation.
  • the second graph forms the suction unit control signal 22 of the suction unit
  • the third graph forms the brush control signal 24 of the cleaning roller 11
  • the fourth graph of the Figure 3 shows the pump control signal 26 of the pump 8.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cleaning In General (AREA)

Description

Die Erfindung betrifft ein Reinigungsgerät nach dem Oberbegriff des Anspruchs 1. Insbesondere betrifft die Erfindung ein Reinigungsgerät mit einem Frischwassertank, zumindest einer Auslassdüse, einem Flüssigkeitszulauf zwischen Frischwassertank und der zumindest einen Auslassdüse, einer Pumpe zur Förderung von Flüssigkeit aus dem Frischwassertank zur Auslassdüse und einer Steuervorrichtung zur Steuerung des Reinigungsgeräts in einem Reinigungsmodus. Als Reinigungsgeräten werden hier insbesondere Nass-/Trockensauggerät verstanden. Diese Reinigungsgeräte haben vorzugsweise mehrere Auslassdüsen mit sehr kleinen Durchmessern, bevorzugt mit Durchmessern kleiner als 1,3 mm.The invention relates to a cleaning device according to the preamble of claim 1. In particular, the invention relates to a cleaning device with a fresh water tank, at least one outlet nozzle, a liquid inlet between the fresh water tank and the at least one outlet nozzle, a pump for conveying liquid from the fresh water tank to the outlet nozzle and a control device for controlling the cleaning device in a cleaning mode. In particular, wet / dry vacuum devices are understood as cleaning devices. These cleaning devices preferably have several outlet nozzles with very small diameters, preferably with diameters smaller than 1.3 mm.

Ein Reinigungsgerät der oben genannten Art ist aus der GB 2 453 139 A bekannt. Das bekannte Reinigungsgerät weist einen Frischwassertank und eine Auslassdüse auf, wobei Flüssigkeit, insbesondere Wasser oder Reinigungsflüssigkeit mit der Pumpe durch die Auslassdüse gefördert wird. Die Zulaufleitung zwischen Pumpe und Auslassdüse ist bei den gattungsgemäßen Geräten nicht entlüftet, so dass nach Abschalten des Reinigungsgerätes noch Restflüssigkeit in der Zulaufleitung und in der Auslassdüse zurückbleibt.A cleaning device of the type mentioned above is from the GB 2 453 139 A known. The known cleaning device has a fresh water tank and an outlet nozzle, wherein liquid, in particular water or cleaning liquid, is conveyed with the pump through the outlet nozzle. The inlet line between the pump and the outlet nozzle is not vented in the generic devices, so that after the cleaning device has been switched off, residual liquid still remains in the inlet line and in the outlet nozzle.

Für das Aufbringen der Flüssigkeit auf eine Reinigungstextilie, z.B. in Form einer Reinigungswalze, ist es erforderlich, den Durchmesser der Auslassöffnung besonders klein zu halten, um ausreichend Druck für das Aufsprühen der Flüssigkeit aufbauen zu können. Durch die dünnen Querschnitte der Auslassdüse entstehen zusätzliche Kapillareffekte, die wiederum dafür sorgen, dass nach Abschalten des Reinigungsgerätes Flüssigkeit in der Zulaufleitung und an den Auslassöffnungen zurückbleibt.To apply the liquid to a cleaning textile, e.g. in the form of a cleaning roller, it is necessary to keep the diameter of the outlet opening particularly small in order to be able to build up sufficient pressure for the liquid to be sprayed on. The thin cross-sections of the outlet nozzle create additional capillary effects, which in turn ensure that liquid remains in the inlet line and at the outlet openings after the cleaning device has been switched off.

Die Restflüssigkeit trocknet und hinterlässt je nach Härtegrad der verwendeten Flüssigkeit Kalkrückstände in den Auslassdüsen bzw. der Zulaufleitung. Die Kalkrückstände können die Auslassdüse in kurzer Zeit teilweise bis vollständig verschließen, wodurch die Funktionstüchtigkeit des Reinigungsgerätes eingeschränkt wird.The residual liquid dries and, depending on the degree of hardness of the liquid used, leaves limescale residues in the outlet nozzles or the supply line. The lime residue can partially or completely close the outlet nozzle in a short time, which limits the functionality of the cleaning device.

Folglich müssen die Reinigungsgeräte häufiger entkalkt werden, um die Funktionstüchtigkeit zu gewährleisten und auch eine mit der Entkalkung ggf. einhergehende Beschädigung des Reinigungsgeräts zu vermeiden.As a result, the cleaning devices must be descaled more frequently in order to ensure that they are functional and also to avoid damage to the cleaning device that may be associated with the decalcification.

Aus der US 3 418 672 A ist eine Pflegevorrichtung für Bowling-Bahnen bekannt, bei der Pflegefluid über Luftdüsen, die nach der Art einer Strahlpumpe aufgebaut sind und über einen Unterdruck Pflegefluid in der Luftdüse ansaugen und als vernebeltes Fluid-/Luftgemisch auf den Untergrund sprühen. Hier das Nachtropfen des Pflegefluids dadurch vermieden, dass zuerst der Fluidstrom und erst später der Luftstrom unterbrochen wird. Eine Möglichkeit zur Unterdrückung von Ablagerungen des Fluids im Bereich der Austrittsdüse ist jedoch nicht vorgesehen.From the U.S. 3,418,672 A A care device for bowling lanes is known in which care fluid is drawn in via air nozzles which are constructed in the manner of a jet pump and which suck in care fluid in the air nozzle via a negative pressure and spray it onto the ground as a misted fluid / air mixture. Here dripping of the care fluid is avoided by first interrupting the fluid flow and only later the air flow. However, there is no provision for suppressing deposits of the fluid in the area of the outlet nozzle.

Aufgabe der Erfindung ist es, ein Reinigungsgerät bereitzustellen, das auf einfache und kostengünstige Art und Weise die oben genannten Nachteile überwindet.The object of the invention is to provide a cleaning device which overcomes the above-mentioned disadvantages in a simple and inexpensive manner.

Die Lösung der Aufgabe erfolgt erfindungsgemäß durch ein Reinigungsgerät mit den Merkmalen des Anspruchs 1. Bevorzugte Ausgestaltungen der Erfindung sind in den Unteransprüchen und der nachfolgenden Beschreibung angegeben, die jeweils einzeln oder in Kombination einen Aspekt der Erfindung darstellen können.The object is achieved according to the invention by a cleaning device with the features of claim 1. Preferred embodiments of the invention are specified in the subclaims and the following description, each of which can represent an aspect of the invention individually or in combination.

Erfindungsgemäß weist nun das Reinigungsgerät zusätzlich einen Gerätereinigungsmodus auf und die Steuervorrichtung ist derart ausgestaltet, dass im Gerätereinigungsmodus zunächst in einer Spülphase die Pumpe zu betätigt wird, um Flüssigkeit aus dem Frischwassertank zu pumpen und anschließend in einer Trocknungsphase derart Druckluft durch die Zulaufleitung und die zumindest eine Auslassdüse gepumpt wird, dass die Flüssigkeit in der Auslassdüse bzw. den Auslassdüsen getrocknet wird.According to the invention, the cleaning device now also has a device cleaning mode and the control device is designed in such a way that in the device cleaning mode the pump is initially actuated in a rinsing phase in order to pump liquid from the fresh water tank and then in a drying phase such compressed air through the supply line and the at least one Outlet nozzle is pumped so that the liquid is dried in the outlet nozzle or the outlet nozzles.

Bevorzugt kann die Druckluft hierbei durch die Pumpe bereitgestellt werden, wobei Luft zum Bereitstellen der Druckluft in der Trocknungsphase insbesondere durch die Pumpe aus dem Flüssigkeitstank entnommen werden kann.In this case, the compressed air can preferably be provided by the pump, with air for providing the compressed air in the drying phase in particular being able to be taken from the liquid tank by the pump.

Der Gerätereinigungsmodus hat den Vorteil, dass er besonders einfach und schnell durchführbar ist. Dadurch ist der Benutzer des Gerätes eher dazu geneigt, ihn regelmäßig durchzuführen und das Risiko einer frühzeitigen Verkalkung der Auslassdüse des Reinigungsgeräts wird deutlich verringert.The device cleaning mode has the advantage that it can be carried out particularly quickly and easily. As a result, the user of the device is more inclined to perform it regularly and the risk of premature calcification of the outlet nozzle of the cleaning device is significantly reduced.

Das Reinigungsgerät weist in vorteilhafter Weise einen zusätzlichen Entkalkungsmodus auf, in dem mit einem Entkalkungsmittel eine Entkalkung des Geräts durchgeführt werden kann. Dieser dauert allerdings wesentlich länger als der Gerätereinigungsmodus, der nur 1 bis 2 Minuten benötigt.The cleaning device advantageously has an additional decalcifying mode in which the device is decalcified with a decalcifying agent can be. However, this takes much longer than the device cleaning mode, which only takes 1 to 2 minutes.

Durch den erfindungsgemäßen Gerätereinigungsmodus können die regelmäßigen Entkalkungs- bzw. Wartungsintervalle länger gewählt werden, was Zeit und Mühe spart.With the device cleaning mode according to the invention, the regular decalcification or maintenance intervals can be selected longer, which saves time and effort.

Besonders bevorzugt ist die Steuervorrichtung dazu eingerichtet, den Gerätereinigungsmodus zeitgesteuert durchzuführen. Der Frischwassertank des Reinigungsgeräts wird hierfür in vorteilhafterweise bis zu einer Gerätereinigungsfüllhöhe befüllt. Dann wird zunächst während der Spülphase der Frischwassertank entleert. Anschließend saugt die Pumpe aus dem leeren Tank Luft an, die dann als Druckluft für die Trocknungsphase bereitgestellt wird.The control device is particularly preferably set up to carry out the device cleaning mode in a time-controlled manner. For this purpose, the fresh water tank of the cleaning device is advantageously filled up to a device cleaning level. Then the fresh water tank is first emptied during the rinsing phase. The pump then sucks in air from the empty tank, which is then made available as compressed air for the drying phase.

Eine besonders anwendungsfreundliche Ausgestaltung der Erfindung sieht vor, dass das Reinigungsgerät eine Füllstandserfassung des Frischwassertanks aufweist und die Steuervorrichtung derart eingerichtet ist, dass bei Unterschreiten eines vordefinierten Schwellwertes des Füllstands im Flüssigkeitstank die Trocknungsphase zeitgesteuert durchgeführt wird. Dies hat den Vorteil, dass der Benutzer das Reinigungsgerät nicht genau bis zur Gerätereinigungsfüllhöhe befüllen muss. Die Spülphase wird dann so lange betrieben, bis der Frischwassertank leer ist. Im Anschluss wird durch die Steuervorrichtung die Trocknungsphase zeitgesteuert eingeleitet. Eine Zeitsteuerung des Gerätereinigungsmodus, insbesondere der Trocknungsphase, ist vorteilhaft und kann erforderlich sein, um je nach Pumpentyp eine Beschädigung der Pumpe zu vermeiden, da die kühlende Flüssigkeit in der Trocknungsphase fehlt.A particularly user-friendly embodiment of the invention provides that the cleaning device has a level detection of the fresh water tank and the control device is set up in such a way that the drying phase is carried out in a time-controlled manner when the level in the liquid tank falls below a predefined threshold. This has the advantage that the user does not have to fill the cleaning device exactly up to the device cleaning level. The rinsing phase is then operated until the fresh water tank is empty. The drying phase is then initiated in a time-controlled manner by the control device. A time control of the device cleaning mode, in particular the drying phase, is advantageous and may be necessary, depending on the type of pump, to avoid damage to the pump, since the cooling liquid is missing in the drying phase.

In einer vorteilhaften Ausgestaltung weist das Reinigungsgerät eine Reinigungsbürste und/oder eine Reinigungswalze auf. Die Auslassdüse ist oder die Auslassdüsen sind derart ausgebildet und angeordnet, dass die Reinigungsbürste und/oder Reinigungswalze für einen Reinigungsbetrieb mit Flüssigkeit aus der Auslassdüse auf die Reinigungsbürste oder Reinigungswalze aufgebracht werden kann. Im erfindungsgemäßen Gerätereinigungsmodus wird dann die Reinigungsbürste oder die Reinigungswalze entsprechend dem oben beschriebenen Vorgehen gereinigt und zumindest teilweise getrocknet. Dies trägt positiv zur Haltbarkeit der Reinigungsbürste oder der Reinigungswalze bei.In an advantageous embodiment, the cleaning device has a cleaning brush and / or a cleaning roller. The outlet nozzle is or the outlet nozzles are designed and arranged such that the cleaning brush and / or cleaning roller can be applied to the cleaning brush or cleaning roller for a cleaning operation with liquid from the outlet nozzle. In the device cleaning mode according to the invention, the cleaning brush or the cleaning roller is then cleaned and cleaned in accordance with the procedure described above at least partially dried. This contributes positively to the durability of the cleaning brush or the cleaning roller.

Bevorzugt weist das Reinigungsgerät eine Füllstandserfassung des Frischwassertanks auf und die Steuervorrichtung ist derart eingerichtet, dass die Pumpe in dem Reinigungsmodus nach Unterschreiten eines definierten Schwellwertes des Füllstands im Flüssigkeitstank abschaltet und für den Gerätereinigungsmodus ein zeitgesteuerten Ablauf vorgesehen ist, wobei ein Abschalten des Geräts bei Unterschreiten des Schwellwertes des Füllstands deaktiviert ist.The cleaning device preferably has a level detection of the fresh water tank and the control device is set up in such a way that the pump switches off in the cleaning mode after the level in the liquid tank falls below a defined threshold and a time-controlled sequence is provided for the device cleaning mode, the device being switched off when the level falls below the Level threshold is deactivated.

Der Gerätereinigungsmodus ist ein vom Reinigungsmodus zu differenzierender Betriebsmodus, der durch den Benutzer des Gerätes bevorzugt aktiv eingeschaltet werden muss. Bevorzugt ist die Steuervorrichtung derart eingerichtet, dass ein Betätigen eines dem Reinigungsgerät zugeordneten Betätigungselements das Auslösen des Gerätereinigungsmodus bewirkt. Das Betätigungselement kann insbesondere an dem Reinigungsgerät angeordnet sein.The device cleaning mode is an operating mode that is to be differentiated from the cleaning mode and which must preferably be actively switched on by the user of the device. The control device is preferably set up in such a way that actuation of an actuation element assigned to the cleaning device triggers the device cleaning mode. The actuating element can in particular be arranged on the cleaning device.

Zum An- und Ausschalten des Reinigungsgeräts ist am Reinigungsgerät ein Schalter vorgesehen. Für eine einfache und kostengünstige Ausgestaltung kann das Betätigungselement durch den Schalter gebildet sein, wobei erst durch eine definierte Betätigungsabfolge, insbesondere durch Betätigen des Schalters über einen Zeitraum von ein paar Sekunden, das Reinigungsgerät durch die Steuervorrichtung in den Gerätereinigungsmodus überführt wird.A switch is provided on the cleaning device to switch the cleaning device on and off. For a simple and inexpensive embodiment, the actuating element can be formed by the switch, the cleaning device being transferred to the device cleaning mode by the control device only through a defined actuation sequence, in particular by actuating the switch over a period of a few seconds.

Eine vorteilhafte Ausführung des Reinigungsgeräts sieht vor, dass die Steuerung derart eingerichtet ist, dass die Pumpe in der Spülphase des Gerätereinigungsmodus intermittierend betrieben wird, insbesondere mit zwei Anschaltphasen und zwei Ausschaltphasen der Pumpe, wobei die Anschaltphasen vorzugsweise kürzer sind als die Ausschaltphasen. Ferner kann vorgesehen sein, dass die Pumpe und die Steuervorrichtung derart eingerichtet sind, in der Spülphase und/oder in der Trocknungsphase des Gerätereinigungsmodus mit einem Volumenstrom von 220 ml/s betrieben zu werden.An advantageous embodiment of the cleaning device provides that the control is set up in such a way that the pump is operated intermittently in the rinsing phase of the device cleaning mode, in particular with two switch-on phases and two switch-off phases of the pump, the switch-on phases preferably being shorter than the switch-off phases. Furthermore, it can be provided that the pump and the control device are set up in such a way that they are operated in the rinsing phase and / or in the drying phase of the device cleaning mode with a volume flow of 220 ml / s.

Vorzugsweise sehen die Reinigungsgeräte, insbesondere bei einer Ausführung als Nass-/Trockensauggerät vor, dass die Reinigungsbürste oder die Reinigungswalze separat ansteuerbar sind. Die Steuerungsvorrichtung kann dabei derart eingerichtet sein, dass in der Spülphase die Reinigungsbürste oder die Reinigungswalze durchgängig betrieben wird, wobei die Reinigungsbürste oder die Reinigungswalze, insbesondere mit maximaler Drehzahl betrieben sind.The cleaning devices, in particular when designed as a wet / dry vacuum device, preferably provide that the cleaning brush or the cleaning roller can be controlled separately. The control device can be set up in such a way that the cleaning brush or the cleaning roller is operated continuously in the rinsing phase, the cleaning brush or the cleaning roller, in particular, being operated at maximum speed.

Für eine bestimmungsgemäße Reinigung des Reinigungsgeräts im Gerätereinigungsmodus ist eine definierte Flüssigkeitsmenge erforderlich, die bevorzugt im Frischwassertank vorgesehen sein sollte. Hierfür sind bevorzugt Mittel vorgesehen, die die benötigte Flüssigkeitsmenge für die Spülphase anzeigen und/oder detektieren. Vorzugsweise wird die benötigte Flüssigkeitsmenge für die Spülphase separat durch Auswertung der Füllstanderfassung detektiert.For proper cleaning of the cleaning device in the device cleaning mode, a defined amount of liquid is required, which should preferably be provided in the fresh water tank. For this purpose, means are preferably provided which display and / or detect the amount of liquid required for the rinsing phase. The amount of liquid required for the rinsing phase is preferably detected separately by evaluating the level detection.

Um eine besonders gute Trocknung der Auslassdüsen und der Zulaufleitung bzw. auch der Reinigungswalze bzw. -bürste zu erreichen, kann ein separater Druckspeicher zur Bereitstellung der Druckluft in der Trocknungsphase des Gerätereinigungsmodus vorgesehen sein. Der Druckluftspeicher ist dabei bevorzugt zwischen Pumpe und Auslassdüse angeordnet. Der Druckspeicher kann beispielsweise auch durch die Zulaufleitung gebildet sein, wobei beispielsweise ein Absperrmittel in Form eines schaltbaren Ventils zwischen Pumpe und Auslassöffnung vorgesehen sein kann. Der Druckluftspeicher kann vorzugsweise durch die Pumpe befüllt sein.In order to achieve particularly good drying of the outlet nozzles and the feed line or also the cleaning roller or brush, a separate pressure accumulator can be provided to provide the compressed air in the drying phase of the device cleaning mode. The compressed air reservoir is preferably arranged between the pump and the outlet nozzle. The pressure accumulator can, for example, also be formed by the feed line, wherein for example a shut-off means in the form of a switchable valve can be provided between the pump and the outlet opening. The compressed air reservoir can preferably be filled by the pump.

Weitere Merkmale und Vorteile der Erfindung ergeben sich der nachfolgenden Beschreibung bevorzugter Ausführungsbeispiele anhand der Zeichnungen.Further features and advantages of the invention emerge from the following description of preferred exemplary embodiments with reference to the drawings.

In den Zeichnungen zeigt:

Fig. 1
eine Ausführungsform eines Nass-/Trockensauggeräts mit der erfindungsgemäßen Steuervorrichtung,
Fig. 2
eine schematische Darstellung der Flüssigkeitsführung in dem Nass-/Trockensauggerät aus Fig. 1 in einer möglichen Ausführungsform und
Fig. 3
eine Schaltsequenz der steuerbaren Komponenten des Nass-/Trockensauggeräts in einer möglichen Ausführungsform des Gerätereinigungsmodus.
In the drawings shows:
Fig. 1
an embodiment of a wet / dry vacuum device with the control device according to the invention,
Fig. 2
a schematic representation of the liquid flow in the wet / dry suction device Fig. 1 in one possible embodiment and
Fig. 3
a switching sequence of the controllable components of the wet / dry vacuum device in a possible embodiment of the device cleaning mode.

In Figur 1 ist ein erfindungsgemäßes Nass-/Trockensauggerät 1 mit Steuervorrichtung 13 dargestellt. Das Nass-/Trockensauggerät 1 ist hier als sogenanntes Stielgerät ausgebildet, d.h. es weist einen Stiel 5 auf, an dessen oberen Ende ein Handgriff 4 vorgesehen ist, über den der Benutzer das Nass-/Trockensauggerät 1 einschalten und führen kann. Im unteren Bereich des Stiels 5 ist ein Gehäuse 2 vorgesehen, in dem ein Schmutzflüssigkeitstank 7 herausnehmbar angeordnet ist. Das hier dargestellte Nass-/Trockensauggerät 1 ist nicht nur ein Sauggerät, sondern ist als Kombinationsgerät zum Reinigen und anschließenden Saugen von harten Oberflächen ausgebildet. Für die Reinigungsfunktion weist es einen Frischwassertank 6 auf, indem Frischwasser oder Reinigungsflüssigkeit für die Zuführung zu einer Auftragsvorrichtung, die zusätzlich zur unteren Saugdüse 3 im vorderen Funktionsbereich angeordnet ist, bevorratet ist. Im Bereich des Handgriffs 4 ist ein Betätigungsschaler 14 vorgesehen.In Figure 1 an inventive wet / dry suction device 1 with control device 13 is shown. The wet / dry vacuum device 1 is designed here as a so-called stick device, ie it has a handle 5, at the upper end of which a handle 4 is provided, via which the user can switch on and guide the wet / dry vacuum device 1. In the lower region of the handle 5, a housing 2 is provided, in which a dirty liquid tank 7 is removably arranged. The wet / dry suction device 1 shown here is not just a suction device, but is designed as a combination device for cleaning and then vacuuming hard surfaces. For the cleaning function, it has a fresh water tank 6 in which fresh water or cleaning liquid is stored for supply to an application device which is arranged in the front functional area in addition to the lower suction nozzle 3. An actuating switch 14 is provided in the area of the handle 4.

Die Figur 2 zeigt eine schematische Darstellung der Flüssigkeitsführung in dem Nass-/Trockensauggerät aus Figur 1 in einer möglichen Ausführungsform. Die Flüssigkeitsführung umfasst den Flüssigkeitstank 6, eine Pumpe 8, Zulaufleitungen 9 und die Auslassdüse 10. In unmittelbarer Nähe zur dargestellten Auslassdüse 10 ist die als Reinigungswalze 11 ausgeführte Auftragsvorrichtung mit einer Textilummantelung als Reinigungsbezug 12 vorgesehen. Ferner ist noch eine Steuerungsvorrichtung 13 des Reinigungsgeräts 1 dargestellt, über die das Nass-/Trockensauggerät gesteuert ist. Die Komponenten sind von Anordnung und Ausgestaltung rein schematisch dargestellt. Beispielsweise können anstelle der abgebildeten Auslassdüse 10 auch mehrere Düsen und/oder andere Düsenformen vorgesehen sein.The Figure 2 shows a schematic representation of the liquid flow in the wet / dry suction device from Figure 1 in one possible embodiment. The liquid guide comprises the liquid tank 6, a pump 8, inlet lines 9 and the outlet nozzle 10. In the immediate vicinity of the illustrated outlet nozzle 10, the application device in the form of a cleaning roller 11 is provided with a textile covering as a cleaning cover 12. Furthermore, a control device 13 of the cleaning device 1 is also shown, via which the wet / dry suction device is controlled. The arrangement and configuration of the components are shown purely schematically. For example, instead of the illustrated outlet nozzle 10, a plurality of nozzles and / or other nozzle shapes can also be provided.

Im Betrieb wird durch die Pumpe 8 Flüssigkeit aus dem Flüssigkeitstank 6 durch die Zulaufleitungen 9 in die Auslassdüse 10 gepumpt und von dort auf die Reinigungswalze 11 aufgetragen, wodurch der als Textilummantelung ausgebildete der Reinigungsbezug 12 befeuchtet wird. Die Reinigungswalze 11 ist mit einem Elektromotor mechanisch verbunden, der die Reinigungswalze 11 in Rotation versetzt. Als Elektromotor ist bevorzugt ein eigener Walzenmotor nur für den Antrieb der Reinigungswalze 11 vorgesehen. Die Reinigungswalze 11 ist dabei in der Drehzahl regelbar. Durch die Rotation der Reinigungswalze 11 wird diese gleichmäßig durch die Auslassdüse 10 befeuchtet.During operation, the pump 8 pumps liquid from the liquid tank 6 through the feed lines 9 into the outlet nozzle 10 and from there it is applied to the cleaning roller 11, whereby the cleaning cover 12, which is designed as a textile cover, is moistened. The cleaning roller 11 is mechanically connected to an electric motor which sets the cleaning roller 11 in rotation. A separate roller motor is preferably provided as the electric motor only for driving the cleaning roller 11. The speed of the cleaning roller 11 can be regulated. As a result of the rotation of the cleaning roller 11, it is evenly moistened by the outlet nozzle 10.

Die Steuervorrichtung 13 ist eingerichtet, die Pumpe 8, den nicht dargestellten Walzenmotor und auch das ebenfalls nicht dargestellte Saugaggregat des Nass-/Trockensauggeräts 1 in Abhängigkeit eines Betriebsmodus des Reinigungsgeräts 1 zu steuern.The control device 13 is set up to control the pump 8, the roller motor (not shown) and also the suction unit (also not shown) of the wet / dry suction device 1 as a function of an operating mode of the cleaning device 1.

Das Nass-/Trockensauggerät 1 weist nun als Betriebsmodi einen Reinigungsmodus und einen Gerätereinigungsmodus auf. Im Reinigungsmodus wird durch die Pumpe 8 Flüssigkeit aus dem Flüssigkeitstank 6 durch die Zulaufleitung 9 in die Auslassdüse 10 gepumpt und von dort auf die Reinigungswalze 11 aufgetragen. Der Walzenmotor treibt die Reinigungswalze 11 an, wodurch der als Textilummantelung ausgebildete Reinigungsbezug 12 befeuchtet wird. Durch die Reinigungswalze 11 wird bei bestimmungsgemäßer Verwendung des Nass-/Trockensauggeräts 1 im Reinigungsmodus der Boden gereinigt und die Flüssigkeit und Schmutzpartikel durch das (hier nicht dargestellte) Saugaggregat in den Schmutzflüssigkeitstank 7 eingesaugt.The wet / dry vacuum device 1 now has a cleaning mode and a device cleaning mode as operating modes. In the cleaning mode, the pump 8 pumps liquid from the liquid tank 6 through the feed line 9 into the outlet nozzle 10 and from there applied to the cleaning roller 11. The roller motor drives the cleaning roller 11, as a result of which the cleaning cover 12, which is designed as a textile cover, is moistened. When the wet / dry vacuum device 1 is used as intended, the floor is cleaned by the cleaning roller 11 in the cleaning mode and the liquid and dirt particles are sucked into the dirty liquid tank 7 by the suction unit (not shown here).

Der Gerätereinigungsmodus muss durch den Nutzer des Nass-/Trockensauggeräts 1 eingeschaltet werden. Hierfür ist bei der hier beschriebenen Ausführungsform vorgesehen, dass der Betätigungsknopf 14 zum Anschalten des Nass-/Trockensauggeräts 1 doppelt belegt ist. Ein längeres Drücken des Betätigungsknopfes 14 bewirkt durch die Steuervorrichtung 13 ein Überführen des Nass-/Trockensauggeräts 1 in den Gerätereinigungsmodus.The device cleaning mode must be switched on by the user of the wet / dry vacuum device 1. For this purpose, in the embodiment described here, it is provided that the actuating button 14 for switching on the wet / dry vacuum device 1 is assigned twice. A longer pressing of the actuating button 14 causes the control device 13 to transfer the wet / dry vacuum device 1 to the device cleaning mode.

Der Gerätereinigungsmodus umfasst zumindest eine Spülphase und eine Trocknungsphase. Bei der Spülphase werden einerseits die Zulaufleitungen 9 und die Auslassdüse 10, aber auch der Textilummantelung ausgebildete Reinigungsbezug 12 der Reinigungswalze 11 gespült und damit gereinigt. In der anschließenden Trocknungsphase wird Druckluft durch die Zulaufleitung 9 und die Auslassdüse 10 gegen die Reinigungswalze 11 gepumpt. Auf diese Weise werden die Zulaufleitung 9 und die Auslassdüse 10 von der restlichen Flüssigkeit befreit. Ferner wird auch der Reinigungsbezug 12 der Reinigungswalze 11 zumindest teilweise getrocknet.The device cleaning mode comprises at least a rinsing phase and a drying phase. During the rinsing phase, on the one hand the supply lines 9 and the outlet nozzle 10, but also the cleaning cover 12 of the cleaning roller 11, which is formed by the textile covering, are rinsed and thus cleaned. In the subsequent drying phase, compressed air is pumped through the feed line 9 and the outlet nozzle 10 against the cleaning roller 11. In this way, the inlet line 9 and the outlet nozzle 10 are freed from the remaining liquid. Furthermore, the cleaning cover 12 of the cleaning roller 11 is also at least partially dried.

Für die Durchführung der Spülphase muss im Flüssigkeitstank 6 eine definierte Flüssigkeitsmenge vorgesehen sein. In besonders einfacher Weise kann am Flüssigkeitstank 6 eine Anzeigemarkierung vorgesehen sein, bis zu der der Flüssigkeitstank 6 für den Gerätereinigungsmodus gefüllt sein muss.A defined amount of liquid must be provided in the liquid tank 6 to carry out the rinsing phase. In a particularly simple manner, an indicator marking can be provided on the liquid tank 6, up to which the liquid tank 6 must be filled for the device cleaning mode.

In diesem Fall wird während der Spülphase der Flüssigkeitstank 6 vollständig entleert. Nachdem der Flüssigkeitstank 6 geleert ist, erfolgt der Trocknungsphase. Die Pumpe 8 saugt hierbei Luft aus dem leeren Flüssigkeitstank 6 an und drückt diese durch die Zulaufleitung 9 und die Düse 10. Die Pumpe 8 ist dabei so eingerichtet, dass sie einen ausreichenden Druck für eine bestimmungsgemäße Trocknung aufbringen kann. Auch kann die Druckluftbereitstellung durch die Pumpe 8 durch einen Druckluftspeicher und/oder eine Ventilschaltung unterstützt sein.In this case, the liquid tank 6 is completely emptied during the rinsing phase. After the liquid tank 6 has been emptied, the drying phase takes place. The pump 8 sucks in air from the empty liquid tank 6 and pushes it through the inlet line 9 and the nozzle 10. The pump 8 is set up so that it can apply sufficient pressure for proper drying. The supply of compressed air by the pump 8 can also be supported by a compressed air reservoir and / or a valve circuit.

Die beschriebene Ausgestaltung stellt eine besonders einfache Lösung dar, die keine zusätzliche Sensorik erforderlich macht. Um die definierte Flüssigkeitsmenge für den Spülphase bereitzustellen, kann aber auch der Füllstand durch einen oder mehrere Sensoren erfasst werden.The embodiment described represents a particularly simple solution that does not require any additional sensors. In order to provide the defined amount of liquid for the rinsing phase, the fill level can also be detected by one or more sensors.

Im Folgenden wird eine bevorzugte Steuersequenz des Gerätereinigungsmodus beschrieben. Die Steuersequenz umfasst die Steuerung der Pumpe 8, den Walzenmotor, das Saugaggregat sowie eine LED zur Anzeige des Betriebsmodus durch die Steuervorrichtung 13.A preferred device cleaning mode control sequence is described below. The control sequence includes the control of the pump 8, the roller motor, the suction unit and an LED for displaying the operating mode by the control device 13.

Die einzelnen Schritte des Gerätereinigungsmodus mit den zugehörigen Ansteuermodalitäten durch die Steuervorrichtung 13 sind in Tabelle 1 aufgeführt. Tab. 1: Gerätereinigungsmodus mit zugehörigen Ansteuermodalitäten durch die Steuervorrichtung Phasen LED Saugaggregat Walzenmotor Pumpe Einleitung An, blinkend Aus Warnmodus Aus Spülen An An, mit maximaler Drehzahl An, maximaler Volumenstrom Aus An, maximaler Volumenstrom Aus Trocknen Aus Aus An, maximaler Volumenstrom An An, mit maximaler Drehzahl Warnmodus Ende Aus Aus Aus Aus The individual steps of the device cleaning mode with the associated control modalities by the control device 13 are listed in Table 1. <b> tab. 1: Device cleaning mode with associated control modalities by the control device </b> Phases LED Suction unit Roller motor pump introduction On, blinking Out Warning mode Out do the washing up At On, at maximum speed On, maximum volume flow Out On, maximum volume flow Out dry Out Out On, maximum volume flow At On, at maximum speed Warning mode end Out Out Out Out

Zunächst wird durch längeres Drücken des Betätigungsknopfes 14 der Gerätereinigungsmodus 16 eingeleitet. Im Einleitungsschritt wird der Benutzer optisch und haptisch auf den beginnenden Gerätereinigungsbetrieb aufmerksam gemacht. Optisch wird die LED auf dem Reinigungsgerät 1 blinkend angesteuert und die Reinigungswalze 11 in einen Warnmodus 16 überführt, wobei im Warnmodus 16 der Walzenmotor die Reinigungswalze 11 durch einen taktenden Betrieb in Vibration bringt.First, the device cleaning mode 16 is initiated by pressing the actuating button 14 for a longer period of time. In the introductory step, the user is visually and haptically made aware of the beginning of the device cleaning operation. The LED on the cleaning device 1 is activated to flash and the cleaning roller 11 is switched to a warning mode 16, with the roller motor causing the cleaning roller 11 to vibrate in a clocked mode in the warning mode 16.

Anschließend wird die Spülphase durchgeführt. Hierfür schaltet die Steuervorrichtung 13 das Saugaggregat, den Walzenmotor und die Pumpe 8 an. Die Reinigungswalze 11 wird während der gesamten Spülphase mit maximaler Drehzahl betrieben. Die Pumpe 8 wird dagegen alternierend an- und ausgeschaltet.The rinsing phase is then carried out. For this purpose, the control device 13 switches on the suction unit, the roller motor and the pump 8. The cleaning roller 11 is operated at maximum speed during the entire rinsing phase. The pump 8, on the other hand, is switched on and off alternately.

Nach der Spülphase wird durch die Steuervorrichtung 13 die Trocknungsphase eingeleitet. Diese umfasst zunächst ein kurzes Abschalten von Saugaggregat und Walzenmotor. Anschließend werden beide wieder eingeschaltet, wie aus Tabelle 1 ersichtlich ist. Der Walzenmotor dreht wieder mit maximaler Drehzahl. Anschließend wird der Abschluss der Trocknungsphase durch den Warnmodus 16 des Walzenmotors dem Benutzer haptisch kenntlich gemacht. Die Pumpe 8 wird während des gesamten Trocknungsprozesses mit voller Leistung betrieben und erzeugt so die Druckluft für das Trocknen. Der Gerätereinigungsmodus wird durch Abschalten aller Motoren sowie der LED durch die Steuervorrichtung 13 beendet.After the rinsing phase, the control device 13 initiates the drying phase. This initially includes briefly switching off the suction unit and roller motor. Then both are switched on again, as can be seen from Table 1. The roller motor rotates again at maximum speed. The end of the drying phase is then made known to the user haptically by the warning mode 16 of the roller motor. The pump 8 is operated at full power during the entire drying process and thus generates the compressed air for drying. The device cleaning mode is ended by switching off all motors and the LED by the control device 13.

In Figur 3 sind die einzelnen Schaltvorgänge, passend zu den in Tabelle 1 beschriebenen Schritten, über die Zeit aufgetragen. Die genauen Zeiten sind nicht angegeben, allerdings sind die Verhältnisse zwischen Anschaltzeit und Ausschaltzeit zutreffend dargestellt und auch als bevorzugte Ausführungsform beansprucht. Das Durchlaufen des Gerätereinigungsmodus beträgt ca. eine Minute.In Figure 3 the individual switching processes, matching the steps described in Table 1, are plotted over time. The exact times are not specified, but the relationships between switch-on time and switch-off time are shown correctly and also claimed as a preferred embodiment. It takes about one minute to go through the device cleaning mode.

Der oberste Graph bildet das LED-Steuersignal 20 der LED. Diese ist in einem anderen Zeitlichen Maßstab dargestellt als die drei anderen Graphen darunter. Der Graph soll nur schematisch das Blinken der LED während des Betriebs kenntlich machen.The top graph forms the LED control signal 20 of the LED. This is shown on a different time scale than the three other graphs below. The graph is only intended to show the blinking of the LED during operation.

Den zweiten Graphen bildet das Saugaggregat-Steuersignal 22 des Saugaggregats, den dritten Graphen das Bürsten-Steuersignal 24 der Reinigungswalze 11 und der vierte Graph der Figur 3 zeigt das Pumpen-Steuersignal 26 der Pumpe 8.The second graph forms the suction unit control signal 22 of the suction unit, the third graph forms the brush control signal 24 of the cleaning roller 11 and the fourth graph of the Figure 3 shows the pump control signal 26 of the pump 8.

Bezugszeichenliste:List of reference symbols:

  • 1 Reinigungsgerät1 cleaning device
  • 2 Gehäuse2 housings
  • 3 Saugdüse3 suction nozzle
  • 4 Handgriff4 handles
  • 5 Stiel5 stem
  • 6 Frischwassertank6 fresh water tank
  • 7 Schmutzflüssigkeitstank7 Dirt liquid tank
  • 8 Pumpe8 pump
  • 9 Zulaufleitung9 inlet pipe
  • 10 Auslassdüse10 outlet nozzle
  • 11 Reinigungswalze11 cleaning roller
  • 12 Reinigungsbezug12 Cleaning cover
  • 13 Steuervorrichtung13 control device
  • 14 Betätigungsknopf14 control button
  • 16 Warnmodus16 Warning mode
  • 20 LED-Steuersignal LED20 LED control signal LED
  • 22 Saugaggregat-Steuersignal22 Suction unit control signal
  • 24 Bürsten-Steuersignal24 brush control signal
  • 26 Pumpe-Steuersignal26 Pump control signal

Claims (11)

  1. Cleaning device (1), in particular a cleaning device (1) designed as a wet/dry suction device, comprising
    • a fresh water tank (6),
    • at least one outlet nozzle (10),
    • a supply line (9) between the fresh water tank (6) and the outlet nozzle (10),
    • at least one pump (8) for delivering liquid from the fresh water tank (6) to the outlet nozzle (10), and
    • a control system (13) for controlling the cleaning device (1) in a cleaning mode in which the cleaning device (1) is used as intended for cleaning surfaces,
    characterized in that
    the cleaning device (1) is set up to provide and run a device cleaning mode with at least one rinsing phase and at least one drying phase, the control device (13) being embodied in such a way that the cleaning device (1) is capable
    • of pumping liquid via the pump (8) through the inlet pipe (9) and the outlet nozzle (10) in the rinsing phase, and
    • of blowing compressed air through the supply line (9) and the outlet nozzle (10) via the pump (8) or an additional pumping device in the drying phase in such a way that at least the outlet nozzle (10) is dried of liquid,
    wherein the control device (13) is set up in such a way that the cleaning device (1) is operated in the device cleaning mode first in a rinsing phase and finally in a drying phase.
  2. Cleaning device (1) according to claim 1, characterized in that the pump (8) is embodied as a liquid and air pump and in the drying phase the compressed air is pumped via the pump (8).
  3. Cleaning device (1) according to claim 1 or 2, characterized in that the compressed air is pumped from the liquid tank (6) and supplied by the pump (8).
  4. Cleaning device (1) according to one of the preceding claims, characterized in that the control device (13) is set up for time-controlled execution of the device cleaning mode.
  5. Cleaning device (1) according to the preceding claim, characterized in that the cleaning device (1) has a level detection of the fresh water tank (6) and the control device (13) is set up in such a way that, when the level of the liquid tank (2) falls below a predefined threshold value, the drying phase is carried out in a time-controlled manner.
  6. Cleaning device (1) according to one of the preceding claims, characterized in that the cleaning device (1) has a cleaning brush and/or cleaning roller (11) and the outlet nozzle (10) is set up in such a way that liquid is applied to the cleaning brush and/or cleaning roller (11) for a cleaning operation, the cleaning brush and/or cleaning roller (11) being cleaned in the device cleaning mode in the rinsing phase and at least partially dried in the drying phase.
  7. Cleaning device (1) according to claim 5, characterized in that the cleaning brush and/or cleaning roller (11) are designed to be separately controllable and the control device (8) is set up in such a way that the cleaning brush and/or cleaning roller (11) is operated continuously in the rinsing phase, the cleaning brush and/or cleaning roller (11) being operated in particular at maximum speed.
  8. Cleaning appliance (1) according to one of the preceding claims, characterized in that the cleaning appliance (1) has a filling level detection of the fresh water tank (6) and the control (8) is set up in such a way that the pump (8) is switched off in the cleaning mode after the filling level of the liquid tank (2) falls below a predefined threshold value and the pump (8) is not switched off in the appliance cleaning mode after the filling level of the liquid tank (2) falls below a predefined threshold value.
  9. Cleaning device (1) according to one of the preceding claims, characterized in that the cleaning device (1) has an actuating element and the control device (13) is set up in such a way that actuating the actuating element is capable of triggering the device cleaning mode.
  10. Cleaning device (1) according to one of the preceding claims, characterized in that the control device (8) is set up in such a way that the pump (8) is operated intermittently in the rinsing phase of the device cleaning mode, in particular with two switch-on phases and two switch-off phases of the pump (8).
  11. cleaning device (1) according to one of the preceding claims, characterized in that the cleaning device (1) has display means which are capable of displaying a required quantity of liquid for the rinsing phase.
EP20190092.5A 2019-08-09 2020-08-07 Cleaning device Active EP3772315B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102019121612.5A DE102019121612B3 (en) 2019-08-09 2019-08-09 Cleaning device with device cleaning mode

Publications (2)

Publication Number Publication Date
EP3772315A1 EP3772315A1 (en) 2021-02-10
EP3772315B1 true EP3772315B1 (en) 2021-04-28

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Application Number Title Priority Date Filing Date
EP20190092.5A Active EP3772315B1 (en) 2019-08-09 2020-08-07 Cleaning device

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EP (1) EP3772315B1 (en)
DE (1) DE102019121612B3 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114631757B (en) * 2020-12-15 2024-01-16 添可智能科技有限公司 Floor brush device and cleaning equipment
CN115844272A (en) * 2021-11-25 2023-03-28 尚科宁家(中国)科技有限公司 Self-cleaning method of surface cleaning machine
CN114224235A (en) * 2022-01-06 2022-03-25 帝舍智能科技(武汉)有限公司 Mopping and sweeping integrated cleaning tool and control method
CN114468890B (en) * 2022-01-07 2023-09-12 北京石头世纪科技股份有限公司 Liquid storage tank of cleaning equipment and cleaning equipment

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3418672A (en) * 1962-04-19 1968-12-31 D B A Products Company Inc Bowling lane maintenance device
GB2453139A (en) * 2007-09-26 2009-04-01 Linda Corderoy Cleaning apparatus

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Publication number Publication date
EP3772315A1 (en) 2021-02-10
DE102019121612B3 (en) 2020-10-15

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