EP4281228B1 - Flüssigkeitsabgabegerät für ein hochdruckreinigungsgerät und verfahren zum steuern eines hochdruckreinigungsgeräts mittels eines flüssigkeitsabgabegeräts - Google Patents

Flüssigkeitsabgabegerät für ein hochdruckreinigungsgerät und verfahren zum steuern eines hochdruckreinigungsgeräts mittels eines flüssigkeitsabgabegeräts Download PDF

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Publication number
EP4281228B1
EP4281228B1 EP22700392.8A EP22700392A EP4281228B1 EP 4281228 B1 EP4281228 B1 EP 4281228B1 EP 22700392 A EP22700392 A EP 22700392A EP 4281228 B1 EP4281228 B1 EP 4281228B1
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EP
European Patent Office
Prior art keywords
cleaned
control unit
pressure cleaning
cleaning device
high pressure
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
EP22700392.8A
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German (de)
English (en)
French (fr)
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EP4281228A1 (de
EP4281228C0 (de
Inventor
Benjamin KUTZ
Lukas SOBOTTA
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Alfred Kaercher SE and Co KG
Original Assignee
Alfred Kaercher SE and Co KG
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Publication date
Application filed by Alfred Kaercher SE and Co KG filed Critical Alfred Kaercher SE and Co KG
Publication of EP4281228A1 publication Critical patent/EP4281228A1/de
Application granted granted Critical
Publication of EP4281228C0 publication Critical patent/EP4281228C0/de
Publication of EP4281228B1 publication Critical patent/EP4281228B1/de
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
    • B05B12/004—Arrangements for controlling delivery; Arrangements for controlling the spray area comprising sensors for monitoring the delivery, e.g. by displaying the sensed value or generating an alarm
    • B05B12/006—Pressure or flow rate sensors
    • B05B12/008—Pressure or flow rate sensors integrated in or attached to a discharge apparatus, e.g. a spray gun
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
    • B05B12/08—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means
    • B05B12/12—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means responsive to conditions of ambient medium or target, e.g. humidity, temperature position or movement of the target relative to the spray apparatus
    • B05B12/122—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means responsive to conditions of ambient medium or target, e.g. humidity, temperature position or movement of the target relative to the spray apparatus responsive to presence or shape of target
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
    • B08B3/02—Cleaning by the force of jets or sprays
    • B08B3/026—Cleaning by making use of hand-held spray guns; Fluid preparations therefor
    • B08B3/028—Spray guns
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
    • B05B12/002—Manually-actuated controlling means, e.g. push buttons, levers or triggers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
    • B05B9/01—Spray pistols, discharge devices

Definitions

  • the invention relates to a liquid dispensing device for a high-pressure cleaning device, comprising a liquid inlet which can be connected to a pump outlet of the high-pressure cleaning device via a pressure line for pressurized cleaning liquid, a liquid outlet for dispensing the cleaning liquid in the direction of an object to be cleaned, an input device, a display device and a control device for controlling the high-pressure cleaning device, wherein the control device has a memory element in which control parameters can be stored, and wherein at least one control parameter can be output to the high-pressure cleaning device by the control device.
  • the invention relates to a method for controlling a high-pressure cleaning device by means of a liquid dispensing device of the type mentioned above.
  • High-pressure cleaning devices comprise a pump and a motor that drives the pump.
  • a cleaning fluid to be pressurized for example water
  • the cleaning fluid can be pressurized by the pump and supplied to a fluid inlet of a fluid dispensing device via a pump outlet and a pressure line connected to the pump outlet, for example a pressure hose.
  • the fluid dispensing device forms an accessory of the high-pressure cleaning device and can be designed, for example, as a spray gun.
  • the pressurized cleaning fluid can be discharged from the fluid dispensing device via a The liquid is discharged from the fluid outlet, which is connected to the fluid inlet, towards an object to be cleaned.
  • the object to be cleaned can be, for example, a floor surface, a building facade, or a vehicle.
  • the object to be cleaned can have a sensitive or a less sensitive surface.
  • WO 2018/171693 A1 A liquid dispensing device is known with an object detection device for contactless detection of the object to be cleaned in order to inform the user how far away the object to be cleaned is.
  • a liquid dispensing device according to the preamble of claim 1 is known, which, in addition to a liquid inlet and a liquid outlet in flow communication with the latter, has an input device, a display device, and a control device for controlling the high-pressure cleaning device.
  • the control device comprises a memory element in which control parameters can be stored, which can be output by the control device to the high-pressure cleaning device in order to control the high-pressure cleaning device.
  • the control parameters allow the high-pressure cleaning device to be operated in a predeterminable manner. For example, the pressure of the cleaning liquid prevailing at the pump outlet or, for example, the volume flow of the cleaning liquid delivered by the high-pressure cleaning device can be adjusted using a control parameter in order to achieve the best possible cleaning result.
  • the optimal control parameters depend on the object being cleaned. For example, an object with a sensitive surface should be set to a lower cleaning fluid pressure than one with a less sensitive surface. Less experienced users often fail to adequately consider the influence of the control parameters on the cleaning result, resulting in less optimal cleaning results or the risk of damaging sensitive surfaces.
  • the object of the present invention is therefore to further develop a liquid dispensing device of the type mentioned at the outset in such a way that it enables an improved cleaning result in a simple manner.
  • liquid dispensing device has an object detection device for contactless detection of the object to be cleaned, wherein object information corresponding to the object to be cleaned can be transmitted from the object detection device to the control device and processed by the control device to provide at least one control parameter adapted to the object to be cleaned.
  • the liquid dispensing device has an object detection device with which the object to be cleaned can be detected without contact.
  • an object detection device with which the object to be cleaned can be detected without contact.
  • Object information corresponding to the object to be cleaned can be transmitted from the object detection device to the control device.
  • the control device is configured to process the transmitted object information and to provide the high-pressure cleaning device, preferably wirelessly, with at least one control parameter adapted to the object to be cleaned. Due to the at least one control parameter that is thus provided to the high-pressure cleaning device, the high-pressure cleaning device can be operated in such a way that an improved cleaning result can be achieved without the user requiring in-depth knowledge.
  • object information of a plurality of objects can be stored in the memory element of the control device, together with the corresponding control parameters for controlling the high-pressure cleaning device, and the object to be cleaned can be assigned by the control device to an object stored in the memory element based on the information transmitted by the object detection device, and depending on the assignment, at least one control parameter can be output by the control device to the high-pressure cleaning device.
  • the liquid dispensing device for example, in the Manufacturer of the liquid dispensing device Object information of a plurality of objects together with control parameters corresponding to these objects for controlling the high-pressure cleaning device are stored in the memory element. The detected object can then be assigned by the control device to an object stored in the memory element.
  • control device can check the degree of correspondence between the object to be cleaned and the objects stored in the memory element and assign the detected object to the object stored in the memory element with the greatest match and output the control parameters corresponding to the assigned object to the high-pressure cleaning device.
  • the high-pressure cleaning device can be provided with at least one control parameter that is adapted to the object to be cleaned.
  • the at least one control parameter comprises a delivery parameter of the high-pressure cleaning device, in particular a default value or default value range for the pressure of the cleaning fluid, the volume flow of the cleaning fluid, and/or the dosage of a cleaning chemical that can be mixed into the cleaning fluid by the high-pressure cleaning device.
  • the high-pressure cleaning device can be operated based on the provision of the control parameter in the form of a delivery parameter in such a way that it provides cleaning fluid at a pressure optimally adapted to the object to be cleaned and/or a volume flow optimally adapted to the object to be cleaned and/or optimally mixes a cleaning chemical into the cleaning fluid.
  • the object detection device is designed in the form of a camera for recording an image of the object to be cleaned, and image information corresponding to the object to be cleaned can be transmitted to the control device.
  • the image information corresponding to the object to be cleaned is processed by the control device using image recognition algorithms with are comparable to the objects stored in the memory element.
  • a pattern recognition method for example, can be used.
  • the control device can check which object stored in the memory element has the greatest degree of similarity with the object to be cleaned.
  • the object to be cleaned can then be assigned by the control device to the stored object with the greatest degree of similarity, and control parameters corresponding to the assigned object can be output by the control device to the high-pressure cleaning device.
  • the assigned object can be displayed on the display device, in particular in the form of a pictogram, an image, and/or a designation.
  • the user can thus easily identify on the display device which stored object the object to be cleaned, detected by the object recognition device, has been assigned to by the control device.
  • the assignment of the object to be cleaned to the object displayed on the display device, as made by the control device can be confirmed by the user via the input device, wherein the at least one control parameter corresponding to the displayed object can be output to the high-pressure cleaning device by the control device after confirmation.
  • the user can decide whether they agree with the assignment of the object to be cleaned to the object displayed on the display device, as made by the control device. If they agree, they can confirm the assignment.
  • the confirmation then causes the control device to output at least one control parameter corresponding to the displayed object to the high-pressure cleaning device.
  • the at least one control parameter corresponding to the displayed object can be automatically output to the high-pressure cleaning device by the control device if user confirmation is not received within a predetermined display time.
  • the control device automatically outputs the at least one control parameter corresponding to the displayed object. This facilitates the handling of the liquid dispensing device.
  • the assignment of the object to be cleaned, made by the control device, to the object displayed on the display device can be rejected by the user via the input device, and the output of the at least one control parameter corresponding to the displayed object to the high-pressure cleaning device can be blocked. If the user disagrees with the assignment made by the control device of the object to be cleaned and detected by the object detection device to the object displayed on the display device, they can reject the assignment and thereby block the output of the at least one control parameter corresponding to the displayed object.
  • a renewed detection of the object to be cleaned by the object detection device can be triggered either automatically by the control device or by the user via the input device.
  • the object detection device can thus detect the object to be cleaned again and retrieve the corresponding object information. can be transmitted to the control device so that the control device can make a new assignment to an object stored in the memory element. For example, a new image can be taken of the object to be cleaned, provided the object detection device is designed as a camera, and the control device can use the new image to check which stored object has the greatest match with the object to be cleaned.
  • the result of the assignment can then be displayed to the user again on the display device so that they can accept or reject the assignment.
  • the new detection of the object to be cleaned can be triggered automatically by the control device or it can be triggered by the user using the input device.
  • the object to be cleaned can be assigned by the user via the input device to an object stored in the memory element after the user has rejected the assignment made by the control device, and the at least one control parameter corresponding to the object to which the user has assigned the object to be cleaned can be output by the control device to the high-pressure cleaning device.
  • the object to be cleaned can be assigned, in a first step, by the control device to an object stored in the memory element, which can then be displayed on the display device. If the user does not agree with this assignment, they can reject the assignment made by the control device and, in a second step, can assign the object to be cleaned to an object stored in the memory element on their own initiative.
  • at least one control parameter can then be output by the control device to the high-pressure cleaning device.
  • the user's assignment of the object to be cleaned to an object stored in the memory element can advantageously be stored in the memory element. This allows the control device to be trained by immediately assigning this object to the object specified by the user upon subsequent detection of the same object to be cleaned.
  • a suggested list of objects stored in the memory element can be displayed on the display device, and the object to be cleaned can be assigned to an object selected by the user from the suggested list.
  • the user can, after having rejected an assignment made by the control device of the object to be cleaned to an object stored in the memory element, select an object from a suggested list that can be displayed on the display device, so that the object to be cleaned and detected by the object detection device is then assigned to the object selected by the user.
  • the control parameters corresponding to the object selected by the user from the suggested list can then be output by the control device to the high-pressure cleaning device.
  • the user can specify a new object not previously stored in the memory element, together with one or more control parameters corresponding to the new object, and store this in the memory element.
  • the object to be cleaned can be assigned to the new object, and at least one control parameter corresponding to the new object can be output by the control device to the high-pressure cleaning device.
  • Such an embodiment gives the user the option of expanding the memory content of the memory element by storing a new object in the memory element, together with this corresponding control parameter, and the object to be cleaned and detected by the object detection device can be assigned to the new object.
  • control device can be connected to an external data processing device for updating the memory content of the memory element and/or for updating a software program.
  • a server, a computer network (cloud), a smartphone, or a tablet computer, for example, can be used as an external data processing device.
  • the external data processing device can provide the control device of the liquid dispensing device with information and preferably also software programs in order to facilitate and/or expand the control device's processing of object information.
  • the control device can be trained to output at least one control parameter to the high-pressure cleaning device after the object detection device has detected an object to be cleaned, so that the operation of the high-pressure cleaning device can be adapted as optimally as possible to the object to be cleaned.
  • the liquid dispensing device forms an accessory for a high-pressure cleaning device.
  • the liquid dispensing device can be designed as a spray gun.
  • the liquid inlet of the liquid dispensing device forms a gun inlet to which a pressure line, in particular a pressure hose, can be connected, so that cleaning liquid, which has been pressurized by the high-pressure cleaning device, can be supplied to the spray gun via the pressure line.
  • the liquid outlet of the liquid dispensing device is designed as a Gun outlet designed to be in flow connection with the gun inlet and through which the pressurized liquid can be directed onto an object to be cleaned.
  • the gun outlet is detachably connectable to a discharge device.
  • the discharge device can be configured, for example, in the form of a spray lance, a spray nozzle, a washing brush, or a surface cleaning device.
  • liquid dispensing device in combination with the display device forms a touch-sensitive screen (touch screen).
  • control device can output control signals for activating the high-pressure cleaning device. This allows the user to switch the high-pressure cleaning device on and off with the aid of the liquid dispensing device.
  • the liquid dispensing device can be provided with an operating element that can be operated by the user. When the operating element is operated, the control device can output activation signals to the high-pressure cleaning device to activate the high-pressure cleaning device so that cleaning fluid is pressurized. If the user releases the operating element, the control device no longer provides activation signals to the high-pressure cleaning device, so that the high-pressure cleaning device is switched off.
  • the fluid dispenser has a check valve arranged in a flow path connecting the fluid outlet with the fluid inlet.
  • the high-pressure cleaning device When the high-pressure cleaning device is switched off, it no longer provides the fluid dispenser with pressurised cleaning fluid, so that the pressure of the cleaning fluid at the fluid inlet drops and the check valve then automatically returns to its closed position.
  • the high-pressure cleaning device When the high-pressure cleaning device is switched on again, the pressure of the cleaning fluid at the fluid inlet increases and the check valve automatically returns to its open position, thereby clearing the flow path between the fluid inlet and the fluid outlet so that the pressurised cleaning fluid can be dispensed via the fluid outlet.
  • the invention also relates to a method for controlling a high-pressure cleaning device by means of a liquid dispensing device, wherein the liquid dispensing device comprises a liquid inlet which can be connected to a pump outlet of the high-pressure cleaning device via a pressure line for pressurized cleaning liquid, and wherein the liquid dispensing device comprises a liquid outlet which is in flow connection with the liquid inlet for dispensing the cleaning liquid towards an object to be cleaned, and wherein the liquid dispensing device comprises an input device, a display device and a control device for controlling the high-pressure cleaning device, wherein the control device has a memory element in which control parameters can be stored, wherein at least one control parameter can be output to the high-pressure cleaning device by the control device, and wherein the liquid dispensing device an object detection device for contactless detection of the object to be cleaned, wherein object information corresponding to the object to be cleaned is transmitted from the object detection device to the control device and processed by the latter to provide at least one control parameter adapted to the object to be cleaned, which control parameter is output
  • object information of a plurality of objects is stored in the memory element of the control device together with the corresponding control parameters for controlling the high-pressure cleaning device and the object to be cleaned is assigned by the control device to an object stored in the memory element.
  • control device checks the degree of correspondence between the object to be cleaned and the objects stored in the memory element and assigns the object to be cleaned to the object stored in the memory element with the greatest correspondence, and the control parameters corresponding to the assigned object are output by the control device to the high-pressure cleaning device.
  • control device assigns the detected object to an object specified by the user and then outputs the control parameters corresponding to this specified object to the high-pressure cleaning device.
  • the object detection device is designed in the form of a camera and takes takes an image of the object to be cleaned and transmits image information corresponding to the object to be cleaned to the control device.
  • control device processes the image information of the object to be cleaned provided by the camera by comparing this image information with the objects stored in the storage element using image recognition algorithms.
  • image recognition algorithms in the form of pattern recognition methods are used.
  • the object assigned by the control device to the object to be cleaned is advantageously displayed on the display device, in particular in the form of a pictogram, an image, and/or a designation.
  • the assignment of the object to be cleaned by the control device to an object stored in the memory element is either confirmed or rejected by the user.
  • the at least one control parameter corresponding to the displayed object is transmitted from the control device to the high-pressure cleaning device. If the assignment made by the control device is rejected, the output of the at least one control parameter corresponding to the displayed object is blocked.
  • a renewed detection of the object to be cleaned by the object detection device is triggered by the control device automatically or by the user by means of the input device, and after renewed detection, a renewed assignment of the object to be cleaned to an object stored in the memory element is carried out by the control device.
  • the object to be cleaned is assigned by the user by means of the input device to an object stored in the memory element after he has rejected the assignment made by the control device, and the at least one control parameter corresponding to the object to which the user has assigned the object to be cleaned is output by the control device to the high-pressure cleaning device.
  • a suggested list of objects stored in the memory element is displayed to the user on the display device after the user has rejected the assignment made by the control device, and the user selects an object from the suggested list, and the object to be cleaned is then assigned to the selected object and control parameters corresponding to the selected object are output to the high-pressure cleaning device.
  • control device After the user has rejected the assignment made by the control device, he stores a new object not previously stored in the memory element together with one or more control parameters corresponding to the new object in the memory element, wherein the object to be cleaned is then assigned to the new object and at least one control parameter corresponding to the new object is output by the control device to the high-pressure cleaning device.
  • control device is connected to an external data processing device, for example to a server, a computer network (cloud), a smartphone or a tablet computer, in order to update the memory content of the memory element and/or to update a software program.
  • an external data processing device for example to a server, a computer network (cloud), a smartphone or a tablet computer, in order to update the memory content of the memory element and/or to update a software program.
  • the drawing schematically shows an advantageous embodiment of a liquid dispensing device according to the invention, which is designated overall by the reference numeral 10.
  • the liquid dispensing device 10 is designed in the form of a spray gun 12 and has a housing 14 with a front housing portion 16 and a rear housing portion 18.
  • a handle 20 protrudes from the rear housing portion 18, to which a protective bar 22 is connected.
  • a spring-loaded check valve 26 is arranged, into the valve housing 28 of which an inlet line 30 opens and to which an outlet line 32 is connected.
  • the free end of the inlet line 30 forms a liquid inlet 34 and the free end of the outlet line 32 forms a liquid outlet 36.
  • a Closing member 38 is biased into a closed position by a closing spring 40, in which it bears sealingly against a valve seat 42 and thereby interrupts a flow connection between the liquid inlet 34 and the liquid outlet 36.
  • the closing member 38 can be moved into an open position, in which it assumes a distance from the valve seat 42 and thereby releases the flow connection between the liquid inlet 34 and the liquid outlet 36.
  • High-pressure cleaning devices which can be used to pressurize a cleaning fluid, are familiar to those skilled in the art. They consist of a motor, a motor-driven pump, and control electronics.
  • the spray gun 12 has an electrical unit 44 which is partially received by the rear housing area 18, with a raised section 46 the electrical unit 44 protrudes from an upper side 48 of the rear housing area 18.
  • the electrical unit 44 is splash-proof in the form of a pre-assembled unit that can be inserted into the housing 14.
  • the electrical unit 44 has a control device 50 for controlling the high-pressure cleaning device, the pump outlet of which, as already mentioned, is in fluid communication with the liquid inlet 34 via a pressure line.
  • the control device 50 is configured to communicate wirelessly, in particular via radio, with the control electronics of the high-pressure cleaning device in order to control the high-pressure cleaning device.
  • the electrical unit 44 has an input device 52 and a display device 54.
  • the input device 52 in combination with the display device 54, forms a touchscreen 56.
  • the electrical unit 44 also has an object detection device 58, which in the illustrated embodiment is configured as a camera 60. Using the camera 60, an object to be cleaned, which is arranged in front of the spray gun 12, can be detected. For this purpose, the camera 60 can capture an image of the object to be cleaned.
  • the camera 60 is electrically connected to the control device 50 via a known connecting line (not shown in the drawing).
  • the control device 50 has a memory element 62.
  • the electrical unit 44 has a battery 64. Furthermore, the electrical unit 44 has an electronic switch 66, which is electrically connected to the control device 50.
  • a switching plunger 68 of the electronic switch 66 can be actuated by means of an operating element, which in the illustrated embodiment is designed as a pivoting lever 70. is to be operated by the user.
  • the pivoting lever 70 is pretensioned by means of a return spring 72 into an inoperative position, in which it projects into the handle opening 24. The user can pivot the pivoting lever 70 with his index finger against the force of the return spring 72 into an operating position. As a result, the pivoting lever 70 actuates the electronic switch 66 via the switching plunger 68, which then transmits a switching signal to the control device 50.
  • the switching signal causes the control device 50 to continuously transmit an activation signal to the control electronics of the high-pressure cleaning device, so that the high-pressure cleaning device is switched on by the control electronics and pressurized cleaning fluid is supplied to the spray gun 12.
  • the high-pressure cleaning device remains switched on until the user releases the switching lever 70, so that it assumes its inoperative position under the action of the return spring 72.
  • the electronic switch 66 detects the inoperative position of the pivot lever 70. The electronic switch 66 then stops transmitting a switching signal to the control device 50, which then no longer provides an activation signal to the control electronics of the high-pressure cleaning device, so that the high-pressure cleaning device is switched off by the control electronics.
  • an image of an object to be cleaned which is positioned in front of the spray gun, can be taken by means of the camera 60.
  • the camera 60 transmits corresponding image information, namely the recorded image, to the control device 50.
  • object information in the form of images of a plurality of objects is stored, together with at least one control parameter for the high-pressure cleaning device corresponding to the respective object.
  • the control parameters are selected such that the respective object can be optimally cleaned by the high-pressure cleaning device.
  • the control device 50 compares the image provided by the camera 60 Image of the object to be cleaned with the objects stored in the memory element 62.
  • the control device 50 checks which of the stored objects has the greatest degree of similarity with the object to be cleaned.
  • the control device 50 then assigns the object to be cleaned to the object stored in the memory element with the greatest degree of similarity.
  • the stored object associated with the object to be cleaned is then displayed on the touch-sensitive screen 56 in the form of a pictogram, a label, and/or an image. The user can thus recognize on the touch-sensitive screen 56 which stored object the control device 50 has associated with the object to be cleaned.
  • the user can then either confirm or reject the assignment made by the control device 50 by touching corresponding screen fields of the touch-sensitive screen 56.
  • the control device 50 If the user confirms the assignment made by the control device, the control device 50 outputs the at least one control parameter corresponding to the object displayed on the screen 56 to the high-pressure cleaning device.
  • the at least one control parameter is transmitted wirelessly to the control electronics of the high-pressure cleaning device.
  • the control device 50 like the control electronics of the high-pressure cleaning device, has a corresponding radio element. After receiving the at least one control parameter, the control electronics controls or regulates the operation of the high-pressure cleaning device according to the at least one control signal.
  • the at least one control parameter can, for example, comprise a conveying parameter of the high-pressure cleaning device, in particular a default value or a default range for the pressure of the cleaning fluid, the The volume flow of the cleaning fluid and/or the dosage of a cleaning chemical that can be mixed into the cleaning fluid by the high-pressure cleaning device.
  • the control parameter is selected to enable optimal cleaning of the respective object.
  • the control device 50 automatically triggers a new detection of the object to be cleaned by the camera 60 again taking an image of the object to be cleaned.
  • the user after rejecting the assignment made by the control device 50, triggers a new detection of the object to be cleaned by touching a corresponding screen field of the screen 56.
  • the image of the object to be cleaned subsequently captured is then again assigned by the control device 50 to an object stored in the memory element 62, which is then again displayed on the touch-sensitive screen 56.
  • the user also has the option of causing the control device 50 to display a suggested list of objects stored in the memory element 52 on the screen 56 by touching a corresponding screen field on the screen 56. The user can then select a stored object from the suggested list. The object to be cleaned and captured by the camera 60 is then assigned to the selected object, and the at least one control parameter corresponding to the selected object is output by the control device 50 to the high-pressure cleaning device.
  • the user has the option of storing a new object not previously stored in the memory element 62 together with one or more to store the control parameters corresponding to the new object in the memory element 62, wherein the control device 50 then outputs the control parameters corresponding to the new object to the high-pressure cleaning device.
  • the assignment made by the user of the object to be cleaned, which is detected by the camera 60, to the new object is stored in the memory element 52, so that when the object to be cleaned is detected again by means of the camera 60, the now stored assignment can be carried out automatically by the control device 50.
  • the memory content of the memory element 62 can be updated and supplemented, just like a software program of the control device 50.
  • the control device 50 can be connected to an external data processing device, for example, to a server, a computer network (cloud), a smartphone, or a tablet computer.
  • an external data processing device for example, to a server, a computer network (cloud), a smartphone, or a tablet computer.
  • This allows not only object information of a large number of objects to be stored in the memory element 62 at the manufacturer's factory of the spray gun 12, together with corresponding control parameters for controlling the high-pressure cleaning device, but also allows additional object information and control parameters to be stored in the memory element 62 at a later time by establishing a connection to the external data processing device.
  • the software program used to process the object information provided by the object detection device 58 in particular pattern recognition methods, can be updated.
  • the detection of the object to be cleaned by means of the object detection device 58, in particular by means of the camera 60, has the advantage that the object to be cleaned can be cleaned as optimally as possible without the user requiring in-depth knowledge.
  • the object to be cleaned is assigned to an object, with control parameters for optimal cleaning of this object being stored in the memory element 62. and can be output to the high-pressure cleaning device by the control device 50. This allows the operation of the high-pressure cleaning device to be easily adjusted in such a way that the object to be cleaned can be cleaned as optimally as possible.

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  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Cleaning By Liquid Or Steam (AREA)
  • Sampling And Sample Adjustment (AREA)
EP22700392.8A 2021-01-19 2022-01-11 Flüssigkeitsabgabegerät für ein hochdruckreinigungsgerät und verfahren zum steuern eines hochdruckreinigungsgeräts mittels eines flüssigkeitsabgabegeräts Active EP4281228B1 (de)

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DE102021101033.0A DE102021101033A1 (de) 2021-01-19 2021-01-19 Flüssigkeitsabgabegerät für ein hochdruckreinigungsgerät und verfahren zum steuern eines hochdruckreinigungsgeräts mittels eines flüssigkeitsabgabegeräts
PCT/EP2022/050451 WO2022157040A1 (de) 2021-01-19 2022-01-11 Flüssigkeitsabgabegerät für ein hochdruckreinigungsgerät und verfahren zum steuern eines hochdruckreinigungsgeräts mittels eines flüssigkeitsabgabegeräts

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EP (1) EP4281228B1 (enExample)
JP (1) JP2024504646A (enExample)
CN (1) CN116669861B (enExample)
AU (1) AU2022210268B2 (enExample)
DE (1) DE102021101033A1 (enExample)
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DE102024139282A1 (de) * 2024-12-20 2026-06-25 Andreas Stihl Ag & Co. Kg Hochdruckreinigungsgerät und Verfahren zum Betrieb eines Hochdruckreinigungsgeräts

Citations (1)

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Publication number Priority date Publication date Assignee Title
EP2236222A1 (en) * 2008-11-04 2010-10-06 Chaiya Suriyapornpun An apparatus for cleaning a vehicle's evaporator coil

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US6283385B1 (en) * 1999-01-22 2001-09-04 Griffin Llc Method and apparatus for dispensing multiple-component flowable substances
US10183308B2 (en) * 2014-10-14 2019-01-22 Conopco, Inc. Spraying device
DE102014115789A1 (de) * 2014-10-30 2016-05-04 Alfred Kärcher Gmbh & Co. Kg Spritzpistole für Hochdruckreinigungsgerät
EP3212341B2 (de) * 2014-10-30 2025-03-05 Alfred Kärcher SE & Co. KG Hochdruckreinigungssystem und verfahren zum betreiben eines hochdruckreinigungssystems
WO2016184529A1 (de) * 2015-05-21 2016-11-24 Alfred Kärcher Gmbh & Co. Kg Hochdruckreinigungssystem und austragseinheit für ein solches hochdruckreinigungssystem
CN106944393B (zh) * 2017-03-23 2019-07-12 华南理工大学 一种水下高压水清污喷头三维定位装置
FR3078631A1 (fr) * 2018-03-07 2019-09-13 Alain HILAIRE Unite portative autonome pour le nettoyage, la desinfection et l’assainissement de tous types d’objet, comprenant une lance integrant un generateur de vapeur et un reservoir d’assainissant a projeter
US10359039B1 (en) * 2018-04-03 2019-07-23 Northern Tool & Equipment Company, Inc. Low cleaning fluid shutdown system for use with a pressure washer
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EP2236222A1 (en) * 2008-11-04 2010-10-06 Chaiya Suriyapornpun An apparatus for cleaning a vehicle's evaporator coil

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US20230415179A1 (en) 2023-12-28
EP4281228A1 (de) 2023-11-29
AU2022210268A1 (en) 2023-07-20
EP4281228C0 (de) 2025-03-19
AU2022210268B2 (en) 2025-02-20
CN116669861A (zh) 2023-08-29
DE102021101033A1 (de) 2022-07-21
CN116669861B (zh) 2026-01-02
WO2022157040A1 (de) 2022-07-28

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