EP2237900B1 - Hochdruckreinigungsgerät mit einem system zur bevorratung und abgabe von flüssigem reinigungszusatz - Google Patents

Hochdruckreinigungsgerät mit einem system zur bevorratung und abgabe von flüssigem reinigungszusatz Download PDF

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Publication number
EP2237900B1
EP2237900B1 EP09708117A EP09708117A EP2237900B1 EP 2237900 B1 EP2237900 B1 EP 2237900B1 EP 09708117 A EP09708117 A EP 09708117A EP 09708117 A EP09708117 A EP 09708117A EP 2237900 B1 EP2237900 B1 EP 2237900B1
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EP
European Patent Office
Prior art keywords
refill container
container
pressure cleaning
intermediate tank
appliance according
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
EP09708117A
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German (de)
English (en)
French (fr)
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EP2237900A2 (de
Inventor
Stefan Kelle
Michael Böhm
Ralph Seitter
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
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Alfred Kaercher SE and Co KG filed Critical Alfred Kaercher SE and Co KG
Publication of EP2237900A2 publication Critical patent/EP2237900A2/de
Application granted granted Critical
Publication of EP2237900B1 publication Critical patent/EP2237900B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B2203/00—Details of cleaning machines or methods involving the use or presence of liquid or steam
    • B08B2203/02—Details of machines or methods for cleaning by the force of jets or sprays
    • B08B2203/0217—Use of a detergent in high pressure cleaners; arrangements for supplying the same

Definitions

  • the invention relates to a high-pressure cleaning device with a pump for conveying a cleaning liquid and with a system for storing and dispensing a liquid cleaning additive with a storage device for storing the cleaning additive and a dispenser for controlled delivery of the cleaning additive for mixing with the cleaning liquid.
  • a cleaning liquid preferably water
  • the high-pressure cleaning device has for this purpose a drive motor which drives a pump for conveying the cleaning liquid.
  • the cleaning liquid can be heated in some high-pressure cleaning devices.
  • the high-pressure cleaning devices have a heatable heat exchanger, for example a coiled tube, which is heated by a burner and through which the cleaning fluid is passed.
  • the cleaning liquid is admixed with a liquid cleaning additive in the form of a decalcifier in order to counteract the calcification of aggregates of the high-pressure cleaning device, in particular of the heat exchanger.
  • a liquid cleaning additive in the form of a cleaning chemical, such as a soap solution.
  • liquid cleaning additives in many cases by means of injectors, which are switched into the flow path of the pressurized cleaning liquid and through which the liquid cleaning additive, such as a cleaning chemical, is sucked.
  • the known high-pressure cleaning equipment for storing the liquid cleaning additive is provided from the outside fillable storage tank, which can be removed via a sampling line of liquid cleaning additive, which is then mixed, for example by means of an injector of the pressurized cleaning liquid.
  • Object of the present invention is to develop a high-pressure cleaning device of the type mentioned in such a way that the handling of the system for storing and dispensing the cleaning additive for the user is simplified.
  • the storage device has a stationary held on the high-pressure cleaner intermediate tank and an independently manageable refill container for filling the intermediate tank, wherein the intermediate tank controlled by means of the dispenser liquid cleaning additive is removable and wherein the refill container on or in the high-pressure cleaning device can be fixed and fluidly connected to the intermediate tank, wherein at a removal of cleaning additive from the intermediate tank automatically cleaning additive the refill container flows into the sub-tank to maintain a predetermined liquid level in the sub-tank.
  • the liquid cleaning additive for example a cleaning chemical or a descaling solution
  • the liquid cleaning additive can be filled from a refill container into an intermediate tank.
  • the intermediate tank is stationarily arranged on or in the high-pressure cleaning device and by means of the dispensing device, the liquid cleaning additive can be removed from the intermediate tank in a controlled manner and admixed with the cleaning fluid of the high-pressure cleaning device.
  • the intermediate tank thus forms a first reservoir for cleaning additive.
  • the used refill container forms a second storage tank, because as long as it is not completely empty, it remains on the high-pressure cleaning device to which it can be fixed. It serves the continuous, needs-based refilling of the intermediate tank.
  • the intermediate tank can thus have a constant liquid level. This facilitates the controlled removal of cleaning additive from the intermediate tank.
  • the volume of the intermediate tank can be kept relatively low, because with the settable on the high-pressure cleaner refill container, which forms an independently manageable unit, the system according to the invention a large volume provided for storage of liquid cleaning additive.
  • the intermediate tank can remain filled until the refilling container has been emptied. Thereafter, the refill container can be replaced by the user, and this replacement does not necessarily have to be done already when the refill container is empty.
  • the intermediate tank provides a kind of "buffer volume" which enables the user to operate the high-pressure cleaning device with the addition of liquid cleaning additive to the cleaning fluid even when the refilling container is already empty. The refill container can thus be completely emptied by the user without the user then immediately having a new refill container at hand.
  • the initially filled intermediate tank rather provides a sufficient amount of liquid Reinigunszusatz available, so that even with a deflated refill container for a while a proper operation of the high-pressure cleaner is possible.
  • the storage device has a holder with a bottom which comprises a filling opening, via which the intermediate tank can be filled with cleaning additive and which is surrounded by an opening edge and in which a connecting piece is arranged, and if the refilling container comprises an outlet nozzle and can be inserted into the holder, wherein the outlet nozzle is placed on the connecting piece to form an inner annular space between the connecting piece and the outlet and an outer annular space between the outlet and the opening edge.
  • the refill container has an outlet, which can be placed on the connection piece when positioning the refill container on the holder.
  • the outlet of the refill container surrounds the connection piece, ie the connection piece dips into the outlet socket.
  • the inner diameter of the outlet nozzle is chosen larger than the outer diameter of the connecting piece, so that forms an inner annular space between the connecting piece and the outlet.
  • the outer diameter of the outlet nozzle is set smaller than the inner diameter of the opening edge, so that an outer annular space is formed between the outlet nozzle and the opening edge.
  • Both annular spaces are in fluid communication with the intermediate tank via the filling opening. It has been shown that by such a configuration cleaning additive can flow out of the refill evenly and at the same time air can flow into the refill, until such time as the intermediate tank is completely filled again after removal of cleaning additive. The subsequent flow of liquid cleaning additive from the refill into the intermediate tank takes place here automatically, without a conveyor, such as a pump, must be used. The outflow of the cleaning additive according to the amount removed from the intermediate tank takes place under the effect of gravity.
  • connection piece forms a cutting edge on its front side facing the refilling container for cutting through a foil or membrane closing off the outlet connection piece of the refilling container.
  • the initially filled refill container has a container opening in the form of the outlet nozzle, which is sealed by a film or a membrane.
  • the refill container can then be fixed upside down, that is, with a vertical downwardly directed outlet nozzle, to the holder, the outlet nozzle being placed on the connection piece.
  • the connecting piece has a cutting edge on its front side facing the refilling container. This cuts through the film when the outlet nozzle reaches the end of the connection piece. The insertion of the refill container into the holder is thus very simple, without any fear that a large amount of liquid cleaning additive flows out of the refill container and contaminates the holder.
  • the end face of the connecting piece preferably extends obliquely to the longitudinal axis of the connecting piece. This facilitates the severing of the film arranged on the outlet nozzle and moreover has the advantage that the outflow of liquid cleaning additive from the refilling container is simplified. It has been shown that the outflow of the liquid cleaning additive is facilitated by the oblique end face of the connecting piece. This is probably due to the fact that the oblique configuration of the connecting piece facilitates the exchange of air between the interior of the refilling container and the outside atmosphere.
  • the connecting piece is surrounded by a first sieve.
  • the first screen thus limits the outer annular space, which is provided between the connecting piece and the opening edge of the filling opening.
  • the sieve can have, for example, a mesh width of 0.5 to 2 mm, in particular a mesh width of 1 mm.
  • the connecting piece comprises a second sieve, that is, if a second sieve is arranged inside the connecting piece or on the end face of the connecting piece.
  • the mesh size of this second screen may also be 0.5 mm to 2 mm, in particular, a mesh width of 1 mm may be provided.
  • the second sieve is arranged offset in the direction of the refill container to the first sieve.
  • the second sieve can be arranged, in particular, on the front side of the connecting piece facing the refilling container, whereas the first sieve can be arranged at the end face of the connecting piece facing away from the refilling container.
  • the staggered arrangement of the two screens facilitates the smooth flow of liquid cleaning additive from the refill into the intermediate tank, as below the second screen, that is, within the connecting piece, an air cushion can form from which air bubbles can rise in the refill while simultaneously Liquid cleaning additive can flow out of the refill container via the inner annular space.
  • an insert is arranged in the holder, which has an insertable into the filling opening first sieve on which the connecting piece is held.
  • the insert is preferably detachably connectable to the holder so that it can be removed by the user for cleaning the holder.
  • the insert forms the first sieve and also has the connection piece, which is surrounded by the first sieve in the circumferential direction.
  • the connecting piece can have a second sieve. If the sieves are clogged, the entire insert can be easily removed from the holder and then cleaned by the user.
  • the insert can be latched with the holder.
  • the holder in the region of the filling opening at least a first locking element, in particular a locking receptacle, and the insert may comprise at least a second locking element, in particular a locking projection, which cooperate detent with each other when inserting the insert into the holder.
  • the insert is designed trough-like and comprises a refill container facing tub rim, where the refill container can be supported.
  • the trough-like design has the advantage that inadvertently emerging from the refill cleaning additive can collect in use. By removing the insert thus unintentionally emerging cleaning additive can be disposed of.
  • the use of the refill container facing the tub rim is a support on which the refill can be supported. The refill container can thus be placed on the rim of the insert.
  • At the bottom of the holder at least one overflow opening is preferably arranged and the insert has at least one outlet opening cooperating with the overflow opening. In such an embodiment may inadvertently escape into the insert reaching cleaning additive on the drain opening of the insert and the overflow opening at the bottom of the holder from the holder.
  • the drain opening is formed by a sinking into the overflow opening of the bottom of the holder drain nipple.
  • the drainage nipple can pass through the overflow opening.
  • the storage and dispensing system comprises a holder in the form of a receiving shaft with a shaft wall and a shaft bottom, wherein the filling opening is arranged at the bottom of the shaft and the refill container can be inserted into the receiving shaft with a container opening facing the filling opening, wherein it at least partially rests against the shaft wall.
  • the receiving shaft can virtually completely surround the refilling container in the circumferential direction, so that the refilling container does not inadvertently swing back and forth even during shaking movements of the high-pressure cleaning device or even slide out of the receiving shaft can.
  • the refill container can rather be reliably fixed to the high-pressure cleaning device in a simple manner.
  • the reliable determination has the additional advantage that during operation of the high-pressure cleaner, an inadvertent outflow of liquid cleaning additive can be avoided from the refill.
  • the refill container inserted into the receiving shaft is held immovably in the receiving shaft transversely to the vertical, with the container opening facing downwards.
  • the refill container can thus no longer be moved transversely to the vertical in the receiving shaft.
  • the refill container form a positive connection with the receiving shaft.
  • the receiving shaft comprises a support surface on which the refill container can be supported in the vertical direction.
  • the support surface makes it possible to specify a defined position for the refill container in the receiving shaft. For this purpose, it is only necessary to insert the refill container in the receiving shaft such that it can be supported on the support surface of the receiving shaft. As a result, movements of the refill container relative to the receiving shaft can be avoided or at least greatly reduced.
  • the refilling container widens at a distance from the container opening via a step which can be applied to the support surface of the receiving shaft.
  • the support surface is formed in a structurally particularly simple embodiment of the receiving shaft of a free edge of the receiving shaft.
  • the refill container inserted into the receiving shaft protrudes partially from the receiving shaft, wherein it is seated on the edge of the receiving shaft with a step arranged on the outside.
  • the refill container is thus always accessible to the user.
  • the refill container forms a handle for gripping the refill container in the region protruding from the receiving shaft, for example a recessed grip or a handle that can be grasped by the user.
  • the refill container is surrounded over its entire circumference of the shaft wall of the receiving shaft, wherein it rests at least partially on the shaft wall.
  • the shaft wall has a recess into which the refill container inserted into the receiving shaft engages with a lateral extension. This supports the vibration-proof attachment of the refill container in the receiving shaft and also ensures that the refill container in the receiving shaft has a predetermined orientation namely such that engages the lateral extension of the refill container in the recess of the shaft wall.
  • the recess may for example be designed as a recess, in particular as a groove-like depression, or as an opening of the shaft wall.
  • the lateral extension of the refill container can be recognized by the user from the outside through the recess of the shaft wall is. This makes it easier for the user to control the position of the refill container in the receiving shaft, since the refilling container can be seen through the recess of the shaft wall.
  • the recess may for example be made transparent.
  • the recess may be formed in the form of an opening of the shaft wall, so that the refill container is directly accessible to the user in the region of the lateral extension.
  • the refill container is designed to be transparent, at least in the area of the lateral extension, because this allows the user to easily recognize the filling level of the refilling container.
  • a marking for reading the filling level is arranged in the region of the lateral extension. This simplifies level control by allowing the user to directly read the level at the mark on the refill container.
  • the storage and dispensing system has a dispensing device with the aid of which liquid cleaning additive can be removed in a controlled manner from the intermediate tank in order to mix the cleaning additive with the cleaning fluid of the high-pressure cleaning device.
  • the dispenser comprises in an advantageous embodiment of the invention, a solenoid valve which is connected to an outlet of the intermediate tank.
  • the solenoid valve is preferably clocked controllable, that is, it can be repeatedly opened and closed in a defined manner. With each opening process, the intermediate tank is a defined Quantity taken from liquid cleaning additive.
  • the removal of a constant amount of cleaning additive is supported by the fact that the intermediate tank maintains a constant liquid level, in particular a fully filled state, as with each removal of liquid cleaning additive from the intermediate tank can flow a corresponding amount of cleaning additive from the refill.
  • the controlled removal of cleaning additive from the intermediate tank can be done easily by means of a solenoid valve, without additional measuring or conveying devices must be used.
  • the drop below a minimum fill level of the intermediate tank can be detected by means of a sensor.
  • the user can be indicated by falling below the minimum level visually or acoustically by means of a display element.
  • a particularly advantageous embodiment comprises a reading device for non-contact reading of an electrical storage element arranged on the refilling container.
  • Such memory elements are known to those skilled in the form of so-called RFID tags (Radio Frequency Identification Tags).
  • Information about the liquid cleaning additive present in the refill container for example its chemical name, can be stored in an electrical storage element of the refill container and / or composition and / or date of manufacture. This information can be read by the reader without contact and then evaluated by a control unit of the high-pressure cleaning device.
  • the names of the cleaning additives suitable for the respective high-pressure cleaning device can be deposited, so that the read-out designation can be compared with the stored designations. If no match can be found, this can be displayed to the user on a display element of the high-pressure cleaning device and, moreover, it can be provided that in this case the delivery device of the storage and delivery system is deactivated. Thus it can be reliably avoided that an unsuitable liquid cleaning additive is used.
  • the system has an electrical communication device and a read / write memory is arranged on the refill container, which is contactlessly writable and readable by the communication device.
  • a memory member of the refill container can be read, but the memory member can also be described.
  • information about the use of the refill container can be stored in its memory element.
  • the service life of the refill container can be detected and stored.
  • the amount of liquid cleaning additive removed from the refilling container or remaining therein is stored in the storage member.
  • the still available amount of liquid cleaning additive can be determined.
  • the refilling container is preferably characterized by the fact that it comprises a container opening formed by an outlet, which is sealed in the filled state of the refill container of a film or membrane, and that he vertically directed downwardly with outlet nozzle while maintaining the tight closure and under Forming a positive connection in the receiving shaft of the system can be used, wherein the film or membrane can be separated by placing the outlet nozzle on the arranged at the bottom of the receiving shaft connecting piece.
  • a refinement of the refilling container makes it possible to insert it into the receiving shaft in a simple manner and to connect it fluidically to the intermediate tank, the refilling container only being opened when its outlet nozzle is arranged directly above the connecting piece.
  • the foil or membrane arranged on the outlet nozzle is then separated from the cutting edge arranged on the connecting piece, and cleaning additive can flow into the intermediate tank as required.
  • the refill container can be positively inserted into the receiving shaft, so that the refill container performs virtually no lateral movements during operation of the high-pressure cleaner, it is rather reliably held in the receiving shaft, and liquid cleaning additive can without the use of delivery units solely due to the effect of gravity from the refill flow into the subtank, the inflowing amount of the intermediate tank taken Quantity corresponds. It can thereby maintain the liquid level in the intermediate tank. In particular, it is ensured by means of the refill container that the intermediate tank continuously remains completely filled. As already explained, this facilitates the removal of a controlled amount of liquid cleaning additive from the intermediate tank, without having to use measuring or conveying members, the removal can rather be done by means of a solenoid valve.
  • the refill container has a container bottom and a container cover, which are integrally connected to each other via a container wall, wherein projecting from the container ceiling of the outlet.
  • the outlet nozzle is preferably arranged centrally on the container ceiling.
  • the refill container is designed to be transparent, at least in a wall region extending from the container cover to the container bottom, because this makes it easier for a user to control the fill level of the refill container.
  • the container wall forms a transparent lateral extension.
  • the lateral extension gives the user the opportunity to use the refill container with a clear orientation in a receiving slot of the high-pressure cleaner.
  • the transparent design of the lateral extension allows an immediate level control.
  • the refill container tapers conically in the direction of the outlet nozzle.
  • a taper of less than 5 ° has been found to be particularly advantageous.
  • the refill container at a distance from the outlet nozzle forms a step which extends in the circumferential direction over an angular range of at least 180 °, in particular over an angular range of more than 270 °.
  • the refill container and the receiving shaft have a substantially rectangular inner contour.
  • a refill container on the outside circumferential stage may extend over at least three outer sides of the rectangular refill container. Facing away from the outlet nozzle, a grip area can adjoin the stage at which the user can grasp the refilling container in a simple manner, even if the refilling container is inserted into the receiving shaft of the high-pressure cleaning appliance.
  • the grip area may in particular have a recessed grip, which facilitates the gripping of the refill container.
  • the inner diameter of the outlet nozzle is in a preferred embodiment, a maximum of 36 mm. It has been found that with such a dimensioning of the outlet nozzle uniform flow of liquid Cleaning additive is ensured from the refill container in the intermediate tank without the aid of additional conveyors.
  • the length of the outlet nozzle is a maximum of 24 mm in a preferred embodiment of the refill container according to the invention. Such a length ensures that when the liquid cleaning additive flows out of the refilling container, air can readily enter the refilling container, so that cleaning additive can continuously flow out to maintain a constant liquid level in the intermediate tank.
  • the high-pressure cleaning device comprises a pump for conveying a cleaning liquid and a system for storing and dispensing a liquid cleaning additive, wherein the cleaning additive of the cleaning liquid is admixed. It is advantageous in this case if the cleaning additive upstream of the pump, the cleaning liquid can be mixed, that is, the admixture takes place before the cleaning fluid is pressurized.
  • the high-pressure cleaning device preferably has a heatable heat exchanger for heating the cleaning fluid pressurized by the pump.
  • the high-pressure cleaning device is preferably designed to be movable.
  • FIG. 1 schematically, a high-pressure cleaning device 10 is shown, which is movable in the illustrated embodiment and this has wheels, in the drawing, a rear wheel 12 and a front wheel 13 can be seen.
  • a high-pressure pump and a arranged the high pressure pump downstream heat exchanger.
  • the heat exchanger is heated by a burner.
  • the exhaust pipe 15 of the burner is arranged on the upper side 16 of the housing 14.
  • a cleaning liquid in particular water
  • To the high-pressure outlet 18 is connected via a high-pressure hose 19, a dispensing device with a spray gun 21 and a beam pipe 22 connected thereto.
  • the heated high-pressure cleaning device 10 For transport, the heated high-pressure cleaning device 10 by an operator on two handles 24, 25 are performed.
  • a storage and dispensing system 28 is disposed on the housing 14, with the aid of the cleaning liquid, a liquid cleaning additive, such as a descaling solution, can be added in a controlled manner.
  • the structure of the storage and dispensing system 28 is in particular from the FIGS. 2 to 5 clear. It comprises a receiving shaft 30 with a substantially rectangular inner contour.
  • the receiving shaft 30 has a shaft bottom 32, the center has a filling opening 34 with a peripheral opening edge 35.
  • At the bottom of the shaft 32 integrally joins a shaft wall 37 at its end facing away from the shaft bottom 32 via a parallel to the shaft bottom 32 extending support surface 38 in the contour of the housing 14 passes.
  • the filling opening 34 is aligned with a filler neck 40 of an intermediate tank 42 arranged below the receiving shaft 30, which has an outlet channel 44 at a vertical distance from the filler neck 40, to which a delivery device in the form of an electrically controllable solenoid valve 46 is connected.
  • a delivery device in the form of an electrically controllable solenoid valve 46 is connected to the solenoid valve 46 .
  • an outlet line 47 provided with a fine filter 48, via which a liquid cleaning additive, in particular a descaling solution, can be taken from the intermediate tank 42, which can then be admixed upstream of the high-pressure pump with the cleaning fluid of the high-pressure cleaning device 10 to be pressurized ,
  • the shaft wall 37 has on a narrow side 49 a recess in the form of an opening 50.
  • the opening 50 is positioned on the back of the high-pressure cleaning device 10, so that it is easily recognizable for the high-pressure cleaning device 10 on the handles 24, 25 leading user.
  • an insert 52 is inserted, which in FIG. 5 is shown schematically and which is seated on the shaft bottom 32. It is designed in the manner of a trough and comprises a peripheral trough edge 54 and a central recess 56 which can be inserted into the filling opening 34 of the shaft bottom 32 to produce a releasable latching connection.
  • the recess 56 dips into the filler neck 40 of the intermediate tank 42 and carries on its the intermediate tank 42 facing bottom a first sieve 58 with a mesh size of about 1 mm.
  • the first sieve 58 is in FIG. 5 recognizable.
  • a connecting piece 60 is formed, which at its the receiving shaft 30 facing the free end face 62 carries a cutting edge 64 and a second sieve 66.
  • the mesh size of the second screen 66 is also about 1 mm.
  • the second sieve 66 is in particular made FIG. 5 recognizable.
  • the tub rim 54 of the insert 52 surrounds a stepped tub bottom 68, which outside the central recess 56 has two drain nipples 69, 70, each of which pass through an overflow opening 71 or 72 of the receiving shaft 30 formed laterally offset from the filling opening 34 into the bottom of the shaft 32.
  • an independently manageable refill 75 is used standing upside down, in the FIGS. 6 and 7 is shown separately. It is essentially cuboid and has a container bottom 76 and a container cover 77, which are integrally connected to one another via a container wall 78.
  • the refill container 75 is designed in a corresponding manner as the receiving shaft 30 in cross-section substantially rectangular. It can be used in the receiving shaft 30 to form a positive connection. This is especially true FIG. 3 clear.
  • the refill container 75 has an outlet connection 80 which, when the refilling container 75 is filled, before it is inserted into the receiving shaft 30, is sealed by means of a film 82.
  • the container wall 78 has at the distance to the container bottom 76 on the outside a step 84, and in the region between the step 84 and the container ceiling 77th the container wall 78 tapers continuously. In the region between the step 84 and the container bottom 76 of the refill container 75 forms a handle portion 86 with a recessed grip 87, which facilitates a user gripping the refill container 75.
  • the refill container 75 On a narrow side 89, the refill container 75 has an extension 90, which extends to the container ceiling 77. At least in the region of the extension 90 of the refill container 75 is formed from the container bottom 76 to the container ceiling 77 transparent. In the area of the extension 90, the refill container 75 carries a marking 94, by means of which the user can read the fill level of the refill container 75.
  • the refill container 75 can be inserted upside down, that is, with the shaft bottom 32 facing outlet port 80, which is initially sealed by means of the film 82, are positively inserted into the receiving shaft 30.
  • the connection piece 60 of the insert 52 dips into the outlet connection 80 of the refill container 75, the film 82 being severed by the cutting edge 74 of the connection piece 60 as soon as the outlet connection 80 is inserted into the receiving shaft 30 when inserting the refilling container 75 into the free end 62 of the connecting piece 60 reached.
  • the refill container 75 inserted into the receiving shaft 30 is supported in the vertical direction in the region of the container cover 77 by the tub rim 54 of the insert 52. An additional support undergoes the refill 75 in the region of the step 84, which rests against the support surface 38 of the receiving shaft 30.
  • the refill container 75 For inserting the refill container 75 in the receiving shaft 30, it is necessary that the refill container 75 is oriented such that its lateral extension 90 can dive into the opening 50 of the shaft wall 37.
  • the transparent region 92 of the refill container 75 is thus easily recognizable by the user, so that he can read off the level of the refill container 75 on the basis of the marking 94.
  • the inner diameter of the outlet nozzle 80 is selected such that an inner annular space 96 is formed between the connecting piece 60 and the outlet pipe 80 and that an outer annular space 97 is formed between the outlet pipe 80 and the opening edge 35 of the filler opening 34.
  • the outer diameter of the connecting piece is 9 mm to 36 mm, in particular 20 mm.
  • the inner diameter of the outlet nozzle 80 is preferably 13 mm to 38 mm.
  • the inner diameter of the filling opening 34 is preferably 15 mm to 63 mm, in particular 39 mm.
  • the length of the outlet nozzle 80 is preferably 17 mm to 24 mm, in particular 22 mm.
  • the refill container 75 receives a liquid cleaning additive, such as a descaling solution. If the first completely filled refill container 75 is inserted into the receiving shaft 30, then cleaning additive can flow from the refill container 75 into the intermediate tank 42. Cleaning additive flows out of the refill container only until the intermediate tank is completely filled. Without additional shut-off elements are required, then interrupts the flow. A further amount of cleaning additive flows out of the refill only when the intermediate tank 42 is removed a corresponding amount.
  • the need-based outflow required by liquid cleaning additive from the refill 75 air exchange is ensured by the provision of the inner annular space 96 and the outer annular space 97.
  • the liquid cleaning additive preferably flows out of the refill container 75 via the outer annular space 97, with air simultaneously passing into the refill container 75 via the inner annular space 96.
  • second sieve 66 can accumulate air, which can then pass through the second sieve 66 into the refill 75. If the filled intermediate tank 42 is removed by briefly opening the solenoid valve 46 a certain amount of liquid cleaning additive, so flows a corresponding amount from the refill 75 into the intermediate tank 42, so that the intermediate tank 42, as long as there is still liquid cleaning additive in the refill 75, a evenly filled state occupies. This makes it easier to remove by means of the solenoid valve 46 by briefly opening a defined amount of liquid cleaning additive.
  • the Control unit may include a display member to indicate to the user the achievement of the minimum level of the intermediate tank 42.
  • the user can thus recognize that now a further admixture of liquid cleaning additive for cleaning fluid is no longer possible. It can then be provided, for example, that the burner of the heated high-pressure cleaning device 10 is turned off in order to avoid calcification thereof. By inserting a new refill container in the receiving shaft 30, the intermediate tank 42 can be refilled, so that then again a proper operation of the high-pressure cleaning device 10 is possible.
  • the refill container 75 carries below a front-mounted label 103, an RFID tag 101 (Radio Frequency Identification tag) with an electrical storage member which can be read from a outside of the shaft wall 37 of the receiving shaft 30 arranged reading device 102 and also described.
  • RFID tag 101 Radio Frequency Identification tag
  • the reader 102 is connected via a connection line, not shown in the drawing with the control unit of the high-pressure cleaner 10 in connection.
  • Information about the properties of the cleaning additive present in the refill container 75, in particular its chemical composition, can be stored in the memory element of the RFID tag. This can thus be detected by the reader 102 and transmitted to the control unit of the high-pressure cleaning device 10.
  • Information about the cleaning additives suitable for the high-pressure cleaning device 10 can be stored in a memory element of the control unit. This allows the information read from the RFID tag 101 be compared with the information stored in the memory element of the control unit. Only if it is determined that the cleaning additive present in the refill container 75 is suitable for the high-pressure cleaning device 10 can a desired amount of cleaning additive be taken from the intermediate tank 42 by means of the magnetic valve 46. If the cleaning additive for the high-pressure cleaning device 10 is not suitable, this is indicated to the user on the display element of the control unit and the solenoid valve 42 remains in its closed state, so that an admixture of the cleaning additive to the cleaning liquid of the high-pressure cleaner 10 is blocked.

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  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Cleaning By Liquid Or Steam (AREA)
  • Cleaning In General (AREA)
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EP09708117A 2008-02-06 2009-02-05 Hochdruckreinigungsgerät mit einem system zur bevorratung und abgabe von flüssigem reinigungszusatz Active EP2237900B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008009221A DE102008009221A1 (de) 2008-02-06 2008-02-06 System zur Bevorratung und Abgabe von flüssigem Reinigungszusatz für Hochdruckreinigungsgerät
PCT/EP2009/000894 WO2009098090A2 (de) 2008-02-06 2009-02-05 System zur bevorratung und abgabe von flüssigen reinigungszusatz für hochdruckreinigungsgerät

Publications (2)

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EP2237900A2 EP2237900A2 (de) 2010-10-13
EP2237900B1 true EP2237900B1 (de) 2012-06-20

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EP09708117A Active EP2237900B1 (de) 2008-02-06 2009-02-05 Hochdruckreinigungsgerät mit einem system zur bevorratung und abgabe von flüssigem reinigungszusatz

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Country Link
US (1) US9016291B2 (zh)
EP (1) EP2237900B1 (zh)
CN (1) CN101925417B (zh)
DE (1) DE102008009221A1 (zh)
DK (1) DK2237900T3 (zh)
RU (1) RU2457048C2 (zh)
WO (1) WO2009098090A2 (zh)

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Also Published As

Publication number Publication date
EP2237900A2 (de) 2010-10-13
DE102008009221A1 (de) 2009-08-13
US9016291B2 (en) 2015-04-28
RU2457048C2 (ru) 2012-07-27
US20110023918A1 (en) 2011-02-03
WO2009098090A2 (de) 2009-08-13
DK2237900T3 (da) 2012-09-24
WO2009098090A3 (de) 2009-10-15
RU2010136999A (ru) 2012-03-20
CN101925417A (zh) 2010-12-22
CN101925417B (zh) 2012-07-04
WO2009098090A8 (de) 2010-09-16

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