Liquid delivery appliance for a high-pressure cleaning appliance and method for controlling a high-pressure cleaning appliance by means of a liquid delivery appliance

Abstract

The invention relates to a liquid delivery appliance (10) for a high-pressure cleaning appliance, comprising a liquid inlet (34) which can be connected to a pump outlet of the high-pressure cleaning appliance via a pressure line for pressurized cleaning liquid, a liquid outlet (36) for delivering cleaning liquid in the direction of an object to be cleaned, an input device (52), a display device (54) and a control device (50) for controlling the high-pressure cleaning appliance, wherein the control device (50) has a storage element (62) in which control parameters can be stored, and wherein at least one control parameter can be output by the control device (50) to the high-pressure cleaning appliance. In order to improve the liquid delivery appliance (10) in such a way that an improved cleaning result can be achieved in a simple manner, it is proposed that the liquid delivery appliance (10) has an object detection device (58) for contactlessly detecting an object to be cleaned, wherein object information corresponding to the object to be cleaned can be transmitted by the object detection device (58) to the control device (50) and can be processed by the control device for providing at least one control parameter which matches the object to be cleaned. Furthermore, the invention also relates to a method for controlling a high-pressure cleaning appliance by means of such a liquid delivery appliance (10).

Description

TECHNICAL FIELD

[0001] The invention relates to a liquid delivery appliance for a high-pressure cleaning appliance, the liquid delivery appliance comprising a liquid inlet, which can be connected to a pump outlet of the high-pressure cleaning appliance via a pressure line for pressurized cleaning liquid, a liquid outlet for delivering 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 appliance, wherein the control device has a storage element, in which control parameters can be stored, and wherein at least one control parameter can be output by the control device to the high-pressure cleaning appliance.

[0002] Furthermore, the invention also relates to a method for controlling a high-pressure cleaning appliance by means of a liquid delivery appliance of the type described above. BACKGROUND

[0003] A high-pressure cleaning appliance has a pump and a motor which drives the pump. Cleaning liquid, for example water, to be pressurized can be fed to the pump via a pump inlet. The cleaning liquid can be pressurized by the pump and fed via a pump outlet and a pressure line, for example a pressure hose, coupled to the pump outlet to a liquid inlet of a liquid delivery appliance. The liquid delivery appliance constitutes an accessory of the high-pressure cleaning appliance and can be designed, for example, as a lance. The pressurized cleaning liquid can be delivered from the liquid delivery appliance in the direction of an object to be cleaned via a liquid outlet in flow connection with the liquid inlet. The object to be cleaned can be, for example, a floor, an outer wall of a building or a vehicle. The object to be cleaned can have a sensitive or less sensitive surface.

[0004] A liquid delivery appliance is known from WO 2016 / 066209 A1, which, in addition to a liquid inlet and a liquid outlet in flow connection with the liquid inlet, comprises an input device, a display device and a control device for controlling the high-pressure cleaning appliance. The control device comprises a storage element in which control parameters can be stored, which can be output by the control device to the high-pressure cleaning appliance in order to control the high-pressure cleaning appliance. The control parameters allow the high-pressure cleaning appliance to be operated in a predefinable manner. For example, the pressure of the cleaning liquid present at the pump outlet or the volume flow of the cleaning liquid conveyed by the high-pressure cleaning appliance can be adjusted by means of the control parameters in order to achieve the best possible cleaning result.

[0005] The optimum control parameters are each related to the object to be cleaned. Thus, a lower cleaning liquid pressure should be adjusted for a surface-sensitive object than for a surface- less sensitive object. Inexperienced users often only insufficiently take into account the influence of the control parameters on the cleaning result, so that an optimum cleaning result is not always possible or sensitive surfaces can be damaged. SUMMARY

[0006] It is therefore the task of the present application to improve a liquid delivery appliance of the type mentioned at the outset in such a way that an improved cleaning result can be achieved in a simple manner.

[0007] This task is solved according to the application in a generic liquid delivery appliance by the liquid delivery appliance having an object detection device for contactlessly detecting an object to be cleaned, wherein object information corresponding to the object to be cleaned can be transmitted by the object detection device to a control device and can be processed by the control device for providing at least one control parameter matched to the object to be cleaned.

[0008] The liquid delivery appliance according to the application has an object detection device with which an object to be cleaned can be contactlessly detected. For example, a floor, an outer wall of a building or also a vehicle can be detected by the object detection device without being touched. Object information corresponding to the object to be cleaned can be transmitted by the object detection device to a control device. The control device is set up to process the transmitted object information and to provide at least one control parameter matched to the object to be cleaned to the high-pressure cleaning appliance, preferably in a wireless manner. On the basis of the at least one control parameter provided to the high-pressure cleaning appliance in this way, the high-pressure cleaning appliance can be operated in such a way that an improved cleaning result can be achieved without the user having to have in-depth knowledge.

[0009] It is advantageous if object information of a plurality of objects together with control parameters for controlling the high-pressure cleaning appliance corresponding to these objects can be stored in a storage element of the control device, and if the object to be cleaned can be attributed by the control device to the objects stored in the storage element on the basis of the information transmitted by the object detection device and if at least one control parameter can be output by the control device to the high-pressure cleaning appliance in dependence on this attribution. In this design of the liquid delivery appliance according to the application, object information of a plurality of objects together with control parameters for controlling the high-pressure cleaning appliance corresponding to these objects can be stored in the storage element, for example in the manufacturing plant of the liquid delivery appliance. Then, the detected object can be attributed by the control device to the objects stored in the storage element. To this end, the control device can check the degree of agreement of the object to be cleaned with the objects stored in the storage element and attribute the detected object to the object stored in the storage element having the greatest degree of agreement and output the control parameter corresponding to the attributed object to the high-pressure cleaning appliance. In this way, the high-pressure cleaning appliance can be provided with at least one control parameter matched to the object to be cleaned.

[0010] In an advantageous design of the application, the at least one control parameter comprises a transport parameter of the high-pressure cleaning appliance, in particular a predefinable value or a predefinable range of values for the pressure of the cleaning liquid, a volume flow of the cleaning liquid and / or a dosage of a cleaning chemical that can be mixed into the cleaning liquid by the high-pressure cleaning appliance. Depending on which object is to be cleaned, the high-pressure cleaning appliance can be operated on the basis of the control parameter provided in the form of the transport parameter, so that the high-pressure cleaning appliance provides cleaning liquid that is optimally matched to the object to be cleaned in terms of pressure and / or volume flow and / or mixes the cleaning chemical into the cleaning liquid in an optimal manner.

[0011] In a preferred design of the application, the object detection device is designed in the form of a camera for taking an image of the object to be cleaned and can transmit image information corresponding to the object to be cleaned to the control device.

[0012] Advantageously, the image information corresponding to the object to be cleaned can be compared by the control device with the objects stored in the storage element by means of an image recognition algorithm. For the comparison, for example, a pattern recognition method can be used. It can be checked by the control device which object stored in the storage element is most consistent with the object to be cleaned. The object to be cleaned can then be assigned by the control device to the stored object having the greatest degree of consistency, and the control parameter corresponding to the assigned object can be output by the control device to the high-pressure cleaning appliance.

[0013] In a particularly preferred design of the liquid-dispensing appliance according to the application, the assigned object can be displayed on the display device, in particular in the form of a pictogram, an illustration and / or a name. Thereby, the user can see in a simple manner on the display device which stored object is assigned by the control device to the object to be cleaned and detected by the object detection device.

[0014] Advantageously, the assignment of the object to be cleaned to the object displayed on the display device, which is effected by the control device, can be confirmed by the user by means of the input device, wherein, after the confirmation, the at least one control parameter corresponding to the displayed object can be output by the control device to the high-pressure cleaning appliance. In this design, the user can decide whether he agrees with the assignment of the object to be cleaned to the object displayed on the display device, which is effected by the control device. In the case of agreement, the user can confirm the assignment. This confirmation then causes the control device to output the at least one control parameter corresponding to the displayed object to the high-pressure cleaning appliance. Thereby, the risk of outputting control parameters that do not match the object to be cleaned due to a false assignment can be kept particularly low.

[0015] It can be provided that at least one control parameter corresponding to the displayed object is outputted to the high-pressure cleaning appliance by the control device automatically within a predefined display time without user confirmation. It is not mandatory in this design of the liquid delivery appliance according to the application that the user explicitly confirms the assignment of the object to be cleaned realized by the control device to the object displayed on the display device. When the user does not confirm within the predefined display time, the control device automatically outputs at least one control parameter corresponding to the displayed object. This makes the operation of the liquid delivery appliance easier.

[0016] It is advantageous that the user can reject the assignment of the object to be cleaned realized by the control device to the object displayed on the display device by means of the input device and can prevent the output of at least one control parameter corresponding to the displayed object to the high-pressure cleaning appliance. If the user does not agree with the assignment of the object to be cleaned realized by the control device and detected by the object detection device to the object displayed on the display device, the user can reject this assignment and thereby prevent the output of at least one control parameter corresponding to the displayed object.

[0017] It is particularly advantageous that after the rejection of the assignment of the object to be cleaned realized by the control device to the object displayed on the display device, a renewed detection of the object to be cleaned by the object detection device can be triggered automatically by the control device or by the user by means of the input device. Thus, the object to be cleaned can be detected again by the object detection device and the corresponding object information can be transmitted to the control device, so that the control device can realize a renewed assignment to the objects saved in the storage element. For example, if the object detection device is designed as a camera, the object to be cleaned can be photographed anew by the object detection device and the control device can check on the basis of the new image which stored object has the greatest conformity 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 the user can agree with the assignment or reject it again. The renewed detection of the object to be cleaned can be triggered automatically by the control device or by the user by means of the input device.

[0018] In an advantageous design of the liquid-delivery appliance according to the application, after the user has rejected the assignment effected by the control device, the object to be cleaned can be assigned by the user to the objects stored in the storage element by means of the input device, and at least one control parameter corresponding to the object to which the object to be cleaned has been assigned by the user can be output by the control device to the high-pressure cleaning appliance. In this design of the liquid-delivery appliance according to the application, the object to be cleaned can be assigned in a first step by the control device to the objects stored in the storage element, which can then be displayed on the display device. If the user does not agree with this assignment, the user can reject the assignment effected by the control device and can assign the object to be cleaned to the objects stored in the storage element himself in a second step. Then, in accordance with the assignment effected by the user, at least one control parameter can be output by the control device to the high-pressure cleaning appliance.

[0019] The assignment of the object to be cleaned effected by the user to the objects stored in the storage element can advantageously be stored in the storage element. Thereby, the control device can be taught in such a way that, upon re-detection of the same object to be cleaned, this object is immediately assigned to the object predefined by the user.

[0020] Advantageously, after the rejection of the assignment effected by the control device, a suggested list of the objects stored in the storage 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. In this design of the liquid-delivery appliance, after the user has rejected the assignment of the object to be cleaned to the objects stored in the storage element effected by the control device, the user can select an object from the suggested list 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. Then, a control parameter corresponding to the object selected by the user from the suggested list can be output by the control device to the high-pressure cleaning appliance.

[0021] It can also be provided that, after the rejection of the assignment effected by the control device, a new object not yet stored in the storage element can be predefined by the user together with one or more control parameters corresponding to the new object and can be stored in the storage element, wherein 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 appliance. This design offers the user the possibility to expand the storage content of the storage element by the user saving a new object together with control parameters corresponding to the new object in the storage element, and so that the object to be cleaned and detected by the object-detection device can be assigned to the new object.

[0022] Advantageously, an assignment of the object to be cleaned to a new object saved by the user in the storage element is possible. This allows the control device to be taught in such a way that, upon renewed detection, the object to be cleaned is assigned to the object saved by the user in the storage element and the control parameters corresponding to this object are output to the high-pressure cleaning appliance.

[0023] It is particularly advantageous if the control device can be connected to an external data processing device for updating the storage content of the storage element and / or for updating the software program. A server, a computer network (cloud), a smartphone or a tablet, for example, can serve as the external data processing device. From the external data processing device, information and preferably also a software program can be provided to the control device of the liquid delivery appliance in order to facilitate and / or expand the processing of object information by the control device. In particular, the control device can be taught in such a way that, upon detection of an object to be cleaned by the object detection device, at least one control parameter is output to the high-pressure cleaning appliance, so that the operation of the high-pressure cleaning appliance can be matched to the object to be cleaned as optimally as possible.

[0024] The liquid delivery appliance constitutes an accessory for the high-pressure cleaning appliance. For example, the liquid delivery appliance can be designed as a lance. In this case, the liquid inlet of the liquid delivery appliance constitutes a lance body inlet at which a pressure line, in particular a pressure hose, can be coupled, so that the lance can be supplied with cleaning liquid pressurized by the high-pressure cleaning appliance via the pressure line. In this design, the liquid outlet of the liquid delivery appliance is designed as a lance body outlet in flow connection with the lance body inlet and via which the pressurized liquid can be directed onto the object to be cleaned.

[0025] Preferably, the lance body outlet is connected to the discharge device in a detachable manner. The discharge device can be designed, for example, in the form of a showering lance, a spray head, a washing brush or a surface cleaning appliance.

[0026] In a preferred design, particularly simple operation of the liquid delivery appliance according to the application is achieved in that the input device, in combination with the display device, constitutes a touch-sensitive screen (touch screen).

[0027] It is advantageous if a control signal for activating the high-pressure cleaning appliance can be output by the control device. This allows the user to start and shut off the high-pressure cleaning appliance with the aid of the liquid delivery appliance. It can be provided, for example, that the liquid delivery appliance has an operating element which can be manipulated by the user. Upon manipulation of the operating element, an activation signal can be output by the control device to the high-pressure cleaning appliance in order to activate the high-pressure cleaning appliance, so that cleaning liquid is pressurized. If the user releases the operating element, the control device no longer provides an activation signal to the high-pressure cleaning appliance, so that the high-pressure cleaning appliance is shut off.

[0028] The operating element is advantageously designed as a swing lever, which is supported in a pivotable manner about a pivot axis and can be pivoted by the user from a non-activated position into an activated position against a spring-elastic restoring force. By pivoting the swing lever into the activated position, the control device is prompted to output an activation signal for activating the high-pressure cleaning appliance. If the user releases the swing lever, the swing lever is pivoted into the non-activated position under the action of the restoring force and the control device is thereby prompted to terminate the output of the activation signal.

[0029] In order to avoid the unintentional discharge of cleaning liquid from the liquid discharge appliance when the high-pressure cleaning appliance is switched off, it is advantageous if the liquid discharge appliance has a non-return valve arranged in the flow path connecting the liquid outlet with the liquid inlet. If the high-pressure cleaning appliance is switched off, the high-pressure cleaning appliance no longer supplies the liquid discharge appliance with pressurized cleaning liquid, so that the pressure of the cleaning liquid at the liquid inlet drops and the non-return valve automatically assumes its closed position. If the high-pressure cleaning appliance is started up again, the pressure of the cleaning liquid present at the liquid inlet rises and the non-return valve automatically assumes its open position and thereby releases the flow path between the liquid inlet and the liquid outlet, so that pressurized cleaning liquid can be discharged via the liquid outlet.

[0030] The application also relates to a method for controlling a high-pressure cleaning appliance by means of a liquid discharge appliance, wherein the liquid discharge appliance comprises a liquid inlet, which can be connected to a pump outlet of the high-pressure cleaning appliance via a pressure line for pressurized cleaning liquid, and wherein the liquid discharge appliance comprises a liquid outlet, which is in flow connection with the liquid inlet for discharging cleaning liquid in the direction of an object to be cleaned, and wherein the liquid discharge appliance comprises an input device, a display device and a control device for controlling the high-pressure cleaning appliance, wherein the control device has a storage element in which control parameters can be stored, wherein at least one control parameter can be output by the control device to the high-pressure cleaning appliance, and wherein the liquid discharge appliance comprises an object detection device for contactlessly detecting an object to be cleaned, wherein object information corresponding to the object to be cleaned is transmitted by the object detection device to the control device and processed by the control device for providing at least one control parameter for controlling the high-pressure cleaning appliance, which is matched to the object to be cleaned, to the high-pressure cleaning appliance.

[0031] The advantages already stated in connection with the explanation of the liquid discharge appliance according to the application can also be achieved by using the method. In order to avoid repetitions, reference is made to the previous explanations.

[0032] It is advantageous if object information of a plurality of objects is stored in the storage element of the control device together with control parameters for controlling the high-pressure cleaning appliance corresponding to these objects, and if the object to be cleaned is assigned to an object stored in the storage element by the control device.

[0033] Preferably, the control device checks the degree of conformity of the object to be cleaned with the objects stored in the storage element and assigns the object to be cleaned to the object stored in the storage element having the greatest degree of conformity and outputs the control parameters corresponding to the assigned object to the high-pressure cleaning appliance by the control device.

[0034] Alternatively, it can be provided that the control device assigns the detected object to an object preassigned by the user and subsequently outputs the control parameters corresponding to the preassigned object to the high-pressure cleaning appliance.

[0035] In a preferred design of the method according to the application, the object detection device is designed in the form of a camera and takes an image of the object to be cleaned and transmits the image information corresponding to the object to be cleaned to the control device.

[0036] Preferably, the control device processes the image information of the object to be cleaned provided by the camera by means of the control device comparing the image information with the objects stored in the storage element by means of an image recognition algorithm.

[0037] Advantageously, an image recognition algorithm in the form of a pattern recognition method is used.

[0038] The object assigned to the object to be cleaned by the control device is advantageously displayed on a display device, in particular in the form of pictograms, illustrations and / or names. Preferably, the assignment of the object to be cleaned to the objects stored in the storage element by the control device is confirmed or rejected by the user.

[0039] If the user confirms the assignment by the control device, at least one control parameter corresponding to the displayed object is output to the high-pressure cleaning appliance by the control device in an advantageous design of the method according to the application. In the case of a rejection of the assignment by the control device, the output of at least one control parameter corresponding to the displayed object is prevented.

[0040] In an advantageous design of the method according to the application, after the rejection of the assignment by the control device, a renewed detection of the object to be cleaned by the object detection device is triggered automatically by the control device or by the user by means of an input device, and a renewed assignment of the object to be cleaned to the objects stored in the storage element is carried out by the control device after the renewed detection.

[0041] It can also be provided that, after the user rejects the assignment by the control device, the object to be cleaned is assigned to an object stored in the storage element by the user by means of an input device, and at least one control parameter corresponding to the object to which the object to be cleaned is assigned by the user is output to the high-pressure cleaning appliance by the control device.

[0042] It can be provided, for example, that after the user has rejected the assignment effected by the control device, a list of proposals of objects stored in the storage element is displayed to the user on the display device, and the user selects an object from the list of proposals, and subsequently assigns the object to be cleaned to the selected object, and outputs the control parameters corresponding to the selected object to the high-pressure cleaning appliance.

[0043] It can also be provided that after the rejection of the assignment effected by the control device, the user stores a new object, which has not been stored in the storage element up to now, together with one or more control parameters corresponding to the new object in the storage 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 to the high-pressure cleaning appliance by the control device.

[0044] It is particularly advantageous if the control device is connected to an external data processing device, for example to a server, a computer network (cloud), a smartphone or a tablet, for updating the storage content of the storage element and / or for updating the software program. BRIEF DESCRIPTION OF DRAWINGS

[0045] The following description of preferred embodiments of the application serves for a more detailed explanation of the application in conjunction with the drawings. Therein:

[0046] Figure 1 : shows a first perspective view of a liquid delivery appliance for a high-pressure cleaning appliance;

[0047] Figure 2 : shows a second perspective view of the liquid delivery appliance of Figure 1 : shows a longitudinal section of the liquid delivery appliance of

[0048] Figure 3 : shows a detail X of the liquid delivery appliance of Figure 1 : shows an enlarged view of detail X of

[0049] Figure 4 : shows an enlarged view of detail Y of Figure 3 : shows an enlarged view of detail Z of DETAILED DESCRIPTION

[0050] An advantageous embodiment of a liquid delivery appliance according to the application is shown schematically in the drawing and is designated as a whole by the reference numeral 10.

[0051] In the embodiment shown, the liquid delivery appliance 10 is designed in the form of a lance 12 and has a housing 14 with a front housing region 16 and a rear housing region 18. A handle 20 projects from the rear housing region 18, to which a protective bow 22 is coupled. The protective bow 22 encloses a gripping opening 24 in conjunction with the handle 20 and the rear housing region 18, into which a user can insert his fingers when he loops the handle 20.

[0052] In the rear housing region 18, a spring-loaded check valve 26 is arranged, into the valve housing 28 of which an inlet line 30 opens, and with which an outlet line 32 is coupled. The free end of the inlet line 30 constitutes a liquid inlet 34, and the free end of the outlet line 32 constitutes a liquid outlet 36. In the valve housing 28, a closing element 38 is pre-tensioned into a closed position by means of a closing spring 40, in which closed position the closing element sealingly abuts against a valve seat 42 and thereby interrupts the flow connection between the liquid inlet 34 and the liquid outlet 36. The closing element 38 can be displaced against the closing force of the closing spring 40 into an open position, in which open position the closing element is spaced apart from the valve seat 42 and thereby releases the flow connection between the liquid inlet 34 and the liquid outlet 36.

[0053] A pressure line for pressurized cleaning liquid can be coupled in a conventional manner with the liquid inlet 34, via which pressure line the liquid inlet 34 can be connected with a pump outlet of a high-pressure cleaning appliance which is known per se and therefore not shown in the drawing for the sake of clarity, so that cleaning liquid pressurized by the high-pressure cleaning appliance can be supplied to the lance 12. Under the action of the pressurized cleaning liquid, the closing element 38 of the check valve 26 is automatically transferred into its open position, so that cleaning liquid can be fed in the direction of the object to be cleaned via the outlet line 32 and the liquid outlet 36. It can also be provided that at the liquid outlet 36 a discharge device can be coupled, such as a spray lance, a spray head, a washing brush or a surface cleaning appliance, with the aid of which the object to be cleaned can be loaded with pressurized cleaning liquid.

[0054] High-pressure cleaning appliances with the aid of which cleaning liquid can be pressurized are known to the person skilled in the art. They comprise a motor and a pump driven by the motor as well as control electronics.

[0055] The lance 12 has an electronics unit 44 which is accommodated in part by the rear housing region 18, wherein a raised section 46 of the electronics unit 44 projects from an upper side 48 of the rear housing region 18.

[0056] The electronics unit 44 is constructed splash-proof in the form of a pre-assemblable structural unit which can be inserted into the housing 14.

[0057] The electronics unit 44 has a control device 50 for controlling a high-pressure cleaning appliance, the pump outlet of which is in flow connection via a pressure line with the liquid inlet 34, as already stated. The control device 50 is set up to communicate wirelessly, in particular by radio, with the control electronics of the high-pressure cleaning appliance in order to control the high-pressure cleaning appliance.

[0058] Furthermore, the electronic unit 44 has an input device 52 and a display device 54. The input device 52, in combination with the display device 54, constitutes a touch-sensitive screen (touch screen) 56.

[0059] The electronic unit 44 also has an object detection device 58, which, in the embodiment shown, is designed as a camera 60. By means of the camera 60, an object to be cleaned arranged in front of the lance 12 can be detected. To this end, the camera 60 can take an image of the object to be cleaned.

[0060] The camera 60 is electrically connected to the control device 50 via connection lines known per se, which are not shown in the drawing. The control device 50 has a storage element 62.

[0061] For energization, the electronic unit 44 has a battery 64. Furthermore, the electronic unit 44 has an electronic switch 66, which is electrically connected to the control device 50. A switch plunger 68 of the electronic switch 66 can be manipulated by the user by means of an operating element designed as a swing lever 70 in the embodiment shown. The swing lever 70 is pretensioned into a non-operating position by means of a return spring 72, in which non-operating position the swing lever projects into the holding opening 24. The user can pivot the swing lever 70 against the force of the return spring 72 into an operating position with his index finger. This results in the swing lever 70 manipulating the electronic switch 66 via the switch plunger 68, which then transmits a switch signal to the control device 50. The switch signal prompts the control device 50 to continuously repeatedly transmit an activation signal to the control electronics of the high-pressure cleaning appliance, so that the high-pressure cleaning appliance is activated by the control electronics and provides the lance 12 with pressurized cleaning liquid. The high-pressure cleaning appliance maintains the activated state until the user releases the swing lever 70, so that this swing lever, under the action of the return spring 72, occupies its non-operating position. The occupation of the non-operating position of the swing lever 70 is recognized by the electronic switch 66. The electronic switch 66 then terminates the transmission of the switch signal to the control device 50, which then no longer provides the activation signal to the control electronics of the high-pressure cleaning appliance, so that the high-pressure cleaning appliance is deactivated by the control electronics.

[0062] As already mentioned, by means of the camera 60 an image of the object to be cleaned, which is positioned in front of the lance, can be taken. The camera 60 transmits the corresponding image information, i.e. the taken image, to the control device 50. The object information in the form of the image of the plurality of objects is stored in the storage element 62 of the control device 50 together with at least one control parameter for the high-pressure cleaning appliance, which corresponds to the respective object. The control parameter is selected in such a way that the respective object can be optimally cleaned by the high-pressure cleaning appliance. By means of an image recognition algorithm, in particular by means of a pattern recognition method, the control device 50 compares the image of the object to be cleaned, which is provided by the camera 60, with the objects stored in the storage element 62. Here, it is checked by the control device 50 which of the stored objects has the greatest degree of conformity with the object to be cleaned. Then, the object to be cleaned is assigned by the control device 50 to the object stored in the storage element having the greatest degree of conformity.

[0063] In a further step, the stored object assigned to the object to be cleaned is then displayed on the touch-sensitive screen 56 in the form of a pictogram, a name and / or an illustration. Thus, the user can recognize on the touch-sensitive screen 56 which stored object is assigned to the object to be cleaned by the control device 50.

[0064] The user can then confirm or reject the assignment realized by the control device 50 by touching the corresponding screen area of the touch-sensitive screen 56.

[0065] If the user confirms the assignment realized by the control device, the control device 50 outputs at least one control parameter corresponding to the object displayed on the screen 56 to the high-pressure cleaning appliance. The at least one control parameter is transmitted by radio to the control electronics of the high-pressure cleaning appliance. For this purpose, the control device 50 has a corresponding radio element like the control electronics of the high-pressure cleaning appliance. After receiving the at least one control parameter, the control electronics controls or regulates the operation of the high-pressure cleaning appliance in accordance with the at least one control signal.

[0066] The at least one control parameter can comprise, for example, a transport parameter of the high-pressure cleaning appliance, in particular a predefinable value or a predefinable range for the cleaning pressure, a volume flow of the cleaning liquid and / or a dose of a cleaning chemical which can be mixed into the cleaning liquid by the high-pressure cleaning appliance. The control parameter is selected in such a way that an optimal cleaning of the respective object is achieved. When the object to be cleaned is correctly assigned to the object stored in the storage element 62, the high-pressure cleaning appliance is operated in such a way that an optimal cleaning result is achieved.

[0067] If the user rejects the assignment effected by the control device 50, at least one control parameter corresponding to the displayed object is not output by the control device 50 to the control electronics of the high-pressure cleaning appliance. Rather, the control device 50 automatically triggers a renewed detection of the object to be cleaned by the camera 60 taking a new image of the object to be cleaned. Alternatively, it can be provided that the user, after he has rejected the assignment effected by the control device 50, triggers a renewed detection of the object to be cleaned by touching the corresponding screen region of the touch-sensitive screen 56. The image of the object to be cleaned subsequently taken is then assigned anew by the control device 50 to the object saved in the storage element 62 and is then displayed again on the touch-sensitive screen 56.

[0068] The user also has the possibility of prompting the control device 50 to display on the screen 56 a suggestion list of the objects stored in the storage element 52 by touching the corresponding screen region of the touch-sensitive screen 56. The user can then select a stored object from the suggestion list. The object to be cleaned and detected by the camera 60 is then assigned to the selected object and at least one control parameter corresponding to the selected object is output by the control device 50 to the high-pressure cleaning appliance.

[0069] Furthermore, the user has the possibility of saving a new object, which has not been stored in the storage element 62 so far, in the storage element 62 together with one or more control parameters corresponding to the new object, wherein the control parameters corresponding to the new object are then output by the control device 50 to the high-pressure cleaning appliance.

[0070] The assignment of the object to be cleaned and detected by the camera 60 to the new object effected by the user is saved in the storage element 52, so that the now stored assignment can be automatically performed by the control device 50 when the object to be cleaned is detected anew by means of the camera 60.

[0071] The storage content of the storage element 62 can be updated and supplemented in the same way as the software program of the control device 50. To this end, 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. This allows not only the object information of a plurality of objects together with the corresponding control parameters for controlling the high-pressure cleaning appliance to be saved in the storage element 62 in the manufacturing plant of the lance 12, but also further object information and control parameters to be saved in the storage element 62 at a later point in time by establishing a connection to an external data processing device. Furthermore, the software program for processing the object information provided by the object detection device 58, in particular the pattern recognition method, can be updated.

[0072] 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 having to have in-depth knowledge of this. The object to be cleaned is assigned to an object for which control parameters for the optimal cleaning of the object are stored in the storage element 62 and can be output to the high-pressure cleaning appliance by the control device 50. This allows the operation of the high-pressure cleaning appliance to be adjusted in a simple manner, so that the object to be cleaned can be cleaned as optimally as possible.

Claims

1. A liquid delivery appliance for a high pressure cleaning appliance, the liquid delivery appliance comprising: a liquid inlet (34) which can be connected to a pump outlet of the high-pressure cleaning appliance via a pressure line for pressurized cleaning liquid; a liquid outlet (36) for emitting cleaning liquid in the direction of an object to be cleaned; an input device (52); a display device (54) and a control device (50) for controlling the high-pressure cleaning appliance, wherein the control device (50) has a storage element (62) in which control parameters can be stored, and wherein at least one control parameter can be output by the control device (50) to the high-pressure cleaning appliance, characterized in that the liquid emitting appliance (10) has an object detection device (58) for contactlessly detecting the object to be cleaned, wherein object information corresponding to the object to be cleaned can be transmitted by the object detection device (58) to the control device (50) and can be processed by the control device (50) for providing at least one control parameter which matches the object to be cleaned.

2. The liquid delivery instrument of claim 1, wherein, Object information of a plurality of objects together with corresponding control parameters for controlling the high-pressure cleaning appliance can be stored in the storage element (62) of the control device (50), and the object to be cleaned can be attributed by the control device (50) to an object stored in the storage element (62), and dependent on the attribution at least one control parameter can be output by the control device (50) to the high-pressure cleaning appliance.

3. The liquid-dispensing implement of claim 1, wherein The at least one control parameter comprises a transport parameter of the high-pressure cleaning appliance.

4. The liquid delivery appliance of claim 1, 2 or 3, wherein, The object detection device is designed in the form of a camera for taking an image of the object to be cleaned, wherein image information corresponding to the object to be cleaned can be transmitted to the control device (50).

5. The liquid-dispensing appliance of claim 4, wherein The image information corresponding to the object to be cleaned can be compared by the control device (50) with objects stored in the storage element (62) by means of an image recognition algorithm.

6. The liquid delivery instrument of claim 2, wherein, The object to which the object to be cleaned is attributed by the control device (50) can be displayed on the display device (54).

7. The liquid-dispensing appliance of claim 6, wherein The attribution of the object to be cleaned to the object displayed on the display device by the control device (50) can be confirmed by the user by means of the input device (52), wherein at least one control parameter corresponding to the displayed object can be output by the control device (50) to the high-pressure cleaning appliance after confirmation.

8. The liquid delivery instrument of claim 7, wherein, Within a predefined display time without user confirmation, at least one control parameter corresponding to the displayed object can be output by the control device (50) to the high-pressure cleaning appliance automatically.

9. The liquid-dispensing implement of claim 6, wherein, The attribution of the object to be cleaned to the object displayed on the display device (54) by the control device (50) can be rejected by the user by means of the input device (52), and the output of at least one control parameter corresponding to the displayed object to the high-pressure cleaning appliance can be prevented.

10. The liquid-dispensing appliance of claim 9, wherein After the user has rejected the assignment of the object to be cleaned to the object displayed on the display device (54) effected by the control device (50), the object to be cleaned can be assigned to an object stored in the storage element (62) by means of the input device (52) and at least one control parameter corresponding to the object to which the object to be cleaned has been assigned by the user can be output to the high-pressure cleaning appliance by the control device (50).

11. The liquid-dispensing implement of claim 9, wherein, The assignment of the object to be cleaned to an object stored in the storage element (62) effected by the user can be stored in the storage element (62).

12. The liquid delivery instrument of claim 11, wherein, After the user has rejected the assignment of the object to be cleaned to the object displayed on the display device (54) effected by the control device (50), a suggested list of objects stored in the storage element (62) can be displayed on the display device (54) and the object to be cleaned can be assigned to an object selected by the user from the suggested list.

13. The liquid delivery instrument of claim 11, wherein, After the user has rejected the assignment of the object to be cleaned to the object displayed on the display device (54) effected by the control device (50), a new object not yet stored in the storage element (62) can be predefined by the user together with one or more control parameters corresponding to the new object and can be stored in the storage element (62), wherein 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 to the high-pressure cleaning appliance by the control device (50).

14. The liquid delivery instrument of claim 9, wherein, The assignment of the object to be cleaned to the new object can be stored in the storage element (62).

15. The liquid-dispensing implement of claim 14, wherein, The control device (50) can be connected to an external data processing device for updating the storage content of the storage element (62) and / or for updating a software program.

16. The liquid delivery instrument of claim 1, 2 or 3, wherein, The liquid delivery appliance (10) is designed as a lance (12).

17. The liquid delivery instrument of claim 1, 2 or 3, wherein, The input device (52) forms, in combination with the display device (54), a touch-sensitive screen (56).

18. The liquid delivery instrument of claim 1, 2 or 3, wherein, The at least one control parameter comprises a predefined value or a predefined value range for the pressure of the cleaning liquid, a volume flow of the cleaning liquid and / or a dose of a cleaning chemical that can be mixed into the cleaning liquid by the high-pressure cleaning appliance.

19. The liquid delivery instrument of claim 1, wherein, The object to which the object to be cleaned has been assigned by the control device (50) can be displayed on the display device (54) in the form of a pictogram, an illustration and / or a name.

20. The liquid delivery instrument of claim 2, wherein, The control device (50) can be connected to a server, a computer network, a smartphone or a tablet for updating the storage content of the storage element (62) and / or for updating a software program.

21. The liquid delivery instrument of claim 1, 2 or 3, wherein, ​ 22. Method for controlling a high-pressure cleaning appliance by means of a liquid delivery appliance, wherein The liquid delivery appliance (10) comprises a liquid inlet (34) which can be connected to a pump outlet of the high-pressure cleaning appliance via a pressure line for pressurized cleaning liquid, and wherein the liquid delivery appliance comprises a liquid outlet (36) for delivering cleaning liquid in the direction of an object to be cleaned, and wherein the liquid delivery appliance comprises an input device (52), a display device (54) and a control device (50) for controlling the high-pressure cleaning appliance, wherein the control device (50) has a storage element (62) in which control parameters can be stored, and wherein at least one control parameter can be output by the control device (50) to the high-pressure cleaning appliance, and wherein the liquid delivery appliance (10) has an object detection device (58) for contactlessly detecting the object to be cleaned, wherein object information corresponding to the object to be cleaned is transmitted by the object detection device (58) to the control device (50) and processed by the control device (50) for providing at least one control parameter matching the object to be cleaned as output to the high-pressure cleaning appliance.

23. The method of claim 22, wherein, Object information of a plurality of objects together with corresponding control parameters for controlling the high-pressure cleaning appliance are stored in the storage element (62) of the control device (50), and the object to be cleaned is assigned by the control device (50) to an object stored in the storage element (62), and at least one control parameter corresponding to the assigned object is output by the control device (50) to the high-pressure cleaning appliance.

24. The method of claim 22, wherein, The object detection device (58) is designed in the form of a camera (60) and takes an image of the object to be cleaned and transmits image information corresponding to the object to be cleaned to the control device (50).

25. The method of claim 24, wherein, The image information provided by the camera (60) is compared by the control device (50) with objects stored in the storage element (62) by means of an image recognition algorithm.

26. The method of claim 23, wherein, The object to which the object to be cleaned is assigned by the control device (50) is displayed on the display device (54).

27. The method of claim 26, wherein, The assignment of the object to be cleaned to the object displayed on the display device (54) effected by the control device (50) is confirmed or rejected by a user, wherein in the case of confirmation at least one control parameter corresponding to the displayed object is output by the control device (50) to the high-pressure cleaning appliance, and wherein in the case of rejection the output of at least one control parameter corresponding to the displayed object to the high-pressure cleaning appliance is prevented.

28. The method of claim 27, wherein, After the assignment of the object to be cleaned to an object stored in the storage element (62) implemented by the control device (50) is rejected by the user, the object to be cleaned is assigned to an object stored in the storage element (62) by the user, and at least one control parameter corresponding to the object to which the object to be cleaned is assigned by the user is output to the high-pressure cleaning appliance by the control device (50).

29. The method of claim 27, wherein, The assignment of the object to be cleaned to an object stored in the storage element (62) implemented by the control device (50) is stored in the storage element (62).

30. The method of claim 29, wherein, After the assignment implemented by the control device (50) is rejected by the user, a suggested list of objects stored in the storage element (62) is displayed to the user on the display device (54), and the user selects an object from the suggested list, wherein the object to be cleaned is then assigned to the selected object, and a control parameter corresponding to the selected object is output to the high-pressure cleaning appliance.

31. The method of claim 27, wherein, After the assignment implemented by the control device (50) is rejected, the user stores a new object not stored in the storage element (62) so far in the storage element (62) together with one or more control parameters corresponding to the new object, 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 to the high-pressure cleaning appliance by the control device (50).

32. The method of claim 27, wherein, The assignment of the object to be cleaned to the new object is stored in the storage element (62).

33. The method of claim 32, wherein, The control device (50) is connected to an external data processing device for updating the storage content of the storage element (62) and / or for updating a software program.

34. The method of any one of claims 22-33, wherein, The object assigned to the object to be cleaned by the control device (50) is displayed on the display device (54) in the form of a pictogram, a name and / or an illustration.

35. The method of claim 23, wherein, ​

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