EP2866952B1 - High-pressure cleaning device - Google Patents

High-pressure cleaning device Download PDF

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Publication number
EP2866952B1
EP2866952B1 EP12730568.8A EP12730568A EP2866952B1 EP 2866952 B1 EP2866952 B1 EP 2866952B1 EP 12730568 A EP12730568 A EP 12730568A EP 2866952 B1 EP2866952 B1 EP 2866952B1
Authority
EP
European Patent Office
Prior art keywords
housing part
pressure cleaning
shells
housing
cleaning appliance
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
EP12730568.8A
Other languages
German (de)
French (fr)
Other versions
EP2866952A1 (en
Inventor
Peter Pfaff
Werner Schwab
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.)
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Publication date
Application filed by Alfred Kaercher SE and Co KG filed Critical Alfred Kaercher SE and Co KG
Publication of EP2866952A1 publication Critical patent/EP2866952A1/en
Application granted granted Critical
Publication of EP2866952B1 publication Critical patent/EP2866952B1/en
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
    • B08B2203/0211—Case coverings
    • 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
    • B08B2203/0223—Electric motor pumps

Definitions

  • the invention relates to a high-pressure cleaning device having the features of the preamble of patent claim 1.
  • a cleaning liquid preferably water
  • the cleaning liquid can be supplied via a liquid supply line to the pump of the high-pressure cleaning device.
  • the liquid supply line can be connected to a first connection element of the pump.
  • the cleaning liquid is pressurized and the pressurized cleaning liquid can be discharged via a second connection element of the pump and a liquid discharge line, which can be connected to the second connection element.
  • the two connection elements are located on a pump head of the pump, which is usually arranged on the side facing away from the motor of the pump.
  • the motor and the pump together form a motor pump unit, which is surrounded by a housing of the high-pressure cleaner.
  • a high pressure cleaning device in which the housing is formed by two housing halves.
  • the two housing half-shells define a horizontally oriented parting plane in the position of use of the high-pressure cleaning device.
  • the motor pump unit can be inserted into a lower housing half shell, and then an upper housing half shell can be placed on the lower housing half shell. On its upper side, the upper housing half shell has a carrying handle. If maintenance work is to be carried out on the motor pump unit, it is necessary to have the complete motor pump unit to remove the housing. Maintenance work is usually carried out on the pump, in particular on the pump head, since there are the most wear parts, which must be replaced if necessary.
  • a high-pressure cleaner is known, the housing is formed by a hood-like front part and a trough-like, designed like a sack truck back part. Between the front part and the back part of a motor pump unit is arranged, which is held on the back part.
  • Another high-pressure cleaner with a two-part housing is from the publication US 5,429,306 A known.
  • the high-pressure cleaner has a U-shaped push bar with two legs, which are connected to each other via a handle. On the housing rollers are stored, with the help of the high-pressure cleaning device can be moved in the manner of a sack truck.
  • the high-pressure cleaning device has two housing parts, which together surround a motor pump unit.
  • the first housing part is formed by two half-shells, which have a stable bottom, which rests on feet.
  • a motor base of the motor pump unit is bolted to the floor.
  • the longitudinal axis of the motor pump unit is aligned horizontally.
  • the second housing part forms a hood, which engages over an end face of the motor pump unit and projects laterally from the first housing part, by which it is supported.
  • Object of the present invention is to develop a high-pressure cleaner of the generic type such that maintenance work on the pump head of the motor pump unit can be easily performed, the high-pressure cleaner has a compact design and the high-pressure cleaner can be fixed for transport in a simple manner on a footprint.
  • This object is achieved by a high-pressure cleaner with the features of claim 1.
  • the high-pressure cleaner according to the invention is characterized by a multi-part housing, wherein in addition to two half-shells which form a first housing part and a pump head facing away from the area of the motor pump unit, a second housing part is used, which is releasably connected to the first housing part and the one forms a trough-like receptacle.
  • the first connection element and the second connection element of the pump head are thus in the amount of the second housing part, which may have at least one opening for the connection elements.
  • the first connection element and / or the second connection element penetrates the at least one opening and protrudes outward beyond the second housing part.
  • Maintenance work can be performed on the pump head of the high-pressure cleaning device according to the invention in a simple manner, for this it is only necessary to separate the detachable connection between the first housing part and the second housing part, so that subsequently the second housing part can be removed.
  • the pump head After removing the second housing part, the pump head is immediately accessible for maintenance without it being necessary to detach the complete motor pump unit from the housing of the high-pressure cleaning device. For maintenance work on the pump head Rather, the first housing part may remain on the motor pump unit, a complete disassembly of the housing is not required.
  • seals in the region of the pump head, in particular in the area of the first and the second connection element can be exchanged in a simple manner.
  • the two half-shells of the first housing part sit in a position of use of the high-pressure cleaning device on the second housing part. In this position of use, the weight of the motor pump unit is thus transmitted via the two half-shells to the second housing part.
  • the second housing part can form a support, for example a support foot, which receives the weight of the motor pump unit and is supported on a footprint on which the high-pressure cleaning device is turned off.
  • the high-pressure cleaning device comprises a U-shaped push bar with two legs, which are connected to one another via a handle. To move along a bottom surface of the push bar can be detected by the user on the handle, which is connected via the two legs with the housing of the high-pressure cleaner.
  • the two legs are each held on a bearing element which is arranged on a half-shell of the first housing part. At the two half-shells of the first housing part not only the motor pump unit is held but in addition, the two legs of the U-shaped push bar are mounted on the half shells via bearing elements.
  • the bearing elements are conveniently integrally connected to the half shells.
  • a half-shell forms in a preferred embodiment, together with a push-bar bearing element from a one-piece plastic molding.
  • the second housing part has two openings which are each aligned in alignment with a bearing element, wherein in the openings in each case one of the handle of the push bar remote end portion of a leg is inserted. This allows a particularly compact design of the high-pressure cleaning device.
  • the U-shaped push bar is slidably held on the housing so that it is between an inserted position in which the handle has a comparatively small distance from the housing, and an extended position in which the handle receives a relatively large distance from the housing, and is displaceable ago.
  • the bearing elements can be designed in the form of guide members, on each of which a leg of the push handle is slidably held. In the retracted position, the remote from the handle free ends of the two legs can dive into the openings of the second housing part, and in the extended position, the free ends of the legs can take a distance to the openings of the second housing part, in particular can be provided that the free ends of the legs are arranged in the extended position of the push bar at the level of the bearing elements.
  • the legs are positioned in the region between the bearing elements and the openings of the second housing part on the outside of the housing at a distance from the housing.
  • the legs are thus accessible to the user outside the housing of the high-pressure cleaner.
  • a position of use of the high-pressure cleaning device here means a position of the high-pressure cleaning device which it occupies during operation of the high-pressure cleaning device.
  • the provision of a vertical parting plane for the first housing part allows easy installation of the high-pressure cleaning device, since the two half-shells are attached to the side of the motor pump unit can completely surround this after mounting in the circumferential direction.
  • the two half shells form an end wall of the housing, are arranged in the ventilation slots. Cooling air can be supplied to the motor pump unit via the ventilation slots.
  • the two half-shells of the first housing part together form a carrying handle.
  • the two half-shells of the first housing part together form a depression into which a switching element, for example a main switch of the high-pressure cleaning device, in particular a rotary switch, can be used. This results in a further simplification of the installation of the high-pressure cleaner.
  • a switching element for example a main switch of the high-pressure cleaning device, in particular a rotary switch
  • the motor pump unit is held in an advantageous embodiment of the invention via elastically deformable damping elements on the two half-shells of the first housing part.
  • elastically deformable damping elements in particular mechanical vibrations of the motor pump unit can be damped.
  • the two half-shells of the first housing part advantageously comprise recesses into which the elastically deformable damping elements can be inserted.
  • the elastically deformable damping elements each surround a holding arm of the motor pump unit.
  • the motor pump unit may, for example, have two, three or four retaining arms, which are distributed over the circumference of the motor pump unit and with their free end regions each immersed in an elastically deformable damping element, which is fixed in a recess of the half-shells.
  • the two half-shells of the first housing part are conveniently releasably connectable to each other.
  • For releasable connection in particular screw can be used.
  • the two half-shells of the first housing part each form a step which bears against an edge of the second housing part.
  • the step is favorably directed inwards, so that the two half-shells each form a collar facing the second housing part, with which the two half-shells bear against the inside of the edge of the second housing part facing the first housing part.
  • two rotatable wheels are mounted on the second housing part.
  • the second housing part forms in such a configuration, a chassis of the high-pressure cleaner.
  • the second housing part can be removed together with the wheels mounted thereon from the first housing part and the motor pump unit held thereon.
  • the two wheels are rotatably mounted on an axle which passes through the second housing part.
  • the axis is preferably aligned perpendicular to a parting plane of the two half-shells.
  • the trough-like receptacle thus takes on the one hand the pump head of the motor pump unit, on the other hand, it takes on the axis on which the two wheels are rotatably mounted.
  • FIGS. 1 to 7 schematically shows a first advantageous embodiment of a high-pressure cleaner 10 according to the invention in a position of use shown with a housing 12 having a first housing part 14 and a second housing part 16.
  • the housing 12 surrounds a motor pump unit 18 with an electric motor 20 and a driven by the electric motor 20 pump 22.
  • the latter forms on its side facing away from the electric motor 20 a pump head 24 with a first connection element in the form of a suction port 26 and with a second connection element in the form of a pressure port 28.
  • a suction line preferably a suction hose can be connected so that the pump 22 under pressure to be set cleaning fluid, such as water, can be supplied.
  • a pressure line, preferably a pressure hose can be connected, via which the set by the pump 22 under pressure cleaning fluid can be discharged.
  • the first housing part 14 surrounds the motor pump unit 18 in the region of the electric motor 22 in the circumferential direction and forms on the second housing part 16 facing away from an upper end wall 30, in which a plurality of ventilation slots 32 are formed. Via the ventilation slots 32, the motor pump unit 18 cooling air can be supplied.
  • the first housing part 14 comprises a first half shell 34 and a second half shell 36.
  • the two half shells 34 and 36 surround a region of the motor pump unit 18 facing away from the pump head 24 in the circumferential direction and are configured substantially mirror-symmetrically with respect to one another. They define between them a vertically oriented parting plane 38 in which they meet with their edges facing each other and form a parting line 40 between them.
  • the two half shells 34, 36 together form a carrying handle 44, to which a recess 46 connects in the direction of the upper end wall 30, in which a main switch in the form of a rotary switch 48 is arranged.
  • Within the housing of the rotary switch 48 is coupled via a pivot arm 50 and a subsequent to the pivot arm 50 switching rod 52 with a control electronics 54 of the motor pump unit 18. This is especially true FIG. 4 clear.
  • the motor pump unit 18 has four holding arms 56 which are arranged at an angle of 90 ° to one another and project radially outwards, each of which dipping into an elastically deformable damping element 58 which is positively received by an inside recess 60 of the half-shells 34, 36.
  • the bearing of the motor pump unit 18 on the housing 12 thus takes place via the two half shells 34, 36 of the first housing part 14.
  • the second housing part 16 forms a trough-shaped receptacle 62 with a bottom wall 64, two spaced-apart side walls 66, 68, a rear wall 70 and a front wall 72, which protrude in the direction of the first housing part 14 of the bottom wall 64 upwards.
  • a plurality of ventilation slots 74 are formed and the front wall 72 has a first opening 76 and a second opening 78.
  • the two side walls 66, 68 are facing each other in their end regions facing away from the bottom wall 64 and each have an opening 80 and 82 in these end regions.
  • the bottom wall 64 forms a support leg 83, with which the high-pressure cleaning device can be parked on a footprint.
  • the pump head 24 dips into the receptacle 62.
  • the recording 62 is at the in the FIGS. 1 to 7 illustrated first embodiment of the high-pressure cleaning device according to the invention by an axis 84 penetrated, which is aligned perpendicular to the parting plane 38 and protrudes beyond the side walls 66, 68 outwardly from the second housing part 16.
  • the axle 84 carries a first impeller 86 and a second impeller 88 which are rotatably mounted on the axle 84.
  • the second housing part 16 forms in combination with the axis 84 and the two wheels 86, 88 a chassis 90 of the high-pressure cleaning device 10.
  • the second housing part 16 carries the first housing part 14 and the motor housing mounted on the first housing part 14.
  • the two half-shells 34, 36 have facing the second housing part 16 each have an inwardly directed step 92, to which a collar 94 connects. This is especially true of the Figures 5 and 6 clear.
  • the receptacle 62 of the second housing part 16 has on its upper side a peripheral edge 96, on which the two half-shells 34, 36 are seated with their steps 92.
  • the collars 94 of the two half shells 34, 36 bear against the inside of the edge 96 and are screwed in these areas via connecting screws 98 with the second housing part 16.
  • the weight of the first housing part 14 and the motor pump unit 18 mounted thereon are thus supported by the second housing part 16 via the steps 92.
  • the two half shells 34, 36 each form a bearing element 100, 102 in the form of a guide channel 104.
  • the guide channels 104 are aligned parallel to the carrying handle 44.
  • a first leg 106 and a second leg 108 of a U-shaped push handle 110 is slidably held.
  • Via a handle 112 the two legs 106, 108 are connected to each other.
  • the push bar 110 can between one in the Figures 2 and 3 shown inserted position and a in FIG. 1 shown withdrawn position to be moved back and forth. In the retracted position, the handle 112 takes a smaller distance to the housing 12 than in the pulled-out position.
  • the half-shells 34, 35 are each covered by a cover 105, which forms a wing-like support 114 for a spray lance (not shown), which can be connected to the free end of a pressure hose.
  • the second housing part 36 In alignment with the wing-like supports 114, the second housing part 36 each has a quiver-like receptacle 116 into which the spray lance can be inserted with its free end region.
  • the two legs 106, 108 In the retracted position, the two legs 106, 108 with their free ends remote from the handle 112 dip into the openings 80 and 82 of the second housing part 16. In the area between the openings 80 and 82 and the bearing elements 100, 102, the legs 106, 108 are arranged at a distance from the housing 12. In this area, they are thus directly accessible to the user of the high-pressure cleaning device 10. This gives the user the option of tightening or pulling means, such as a drawstring, to be fixed to the legs 106, 108 in order to secure the high-pressure cleaning device 10 during transport on a footprint.
  • tightening or pulling means such as a drawstring
  • the second housing part 16 can be separated from the first housing part 14 together with the wheels 86, 88 and the axle 84. For this it is only necessary to release the connecting screws 98. After removal of the second housing part 16 from the first housing part 14, the pump 22, in particular the pump head 24, the user directly accessible. Wear parts, such as seals, can thus be easily replaced.
  • the motor pump unit 18 does not have to be completely separated from the housing 12 and also the push bar 110 can remain together with the covers 105 on the first housing part 14. Maintenance work is thus very easy on high-pressure cleaner 10.
  • FIG. 8 a second advantageous embodiment of a high-pressure cleaner according to the invention is shown, which is generally designated by the reference numeral 120.
  • This is largely identical to that described above with reference to the FIGS. 1 to 7 shown high-pressure cleaner 10.
  • FIG. 8 the same reference numerals as in the FIGS. 1 to 7 and with respect to these components, reference is made to the above explanations to avoid repetition.
  • the high-pressure cleaning device 120 differs from the high-pressure cleaning device 10 only in that it has neither the push bar 110 with the two legs 106, 108 and the handle 112 nor the two wheels 86, 88 and the axis 84.
  • the high-pressure cleaning device 120 is thus not designed in the form of a sack truck, which can be moved along a floor surface, but the high-pressure cleaning device 120 can be worn by the user on the carrying handle 44. It can be used both in the FIG. 8 shown upright position as well as in a lying position.
  • the high-pressure cleaning device 120 also has a housing 12 with a first housing part 14 and a second housing part 16, the first housing part 14 comprising two half shells 34, 36 surrounding the motor pump unit 18 in the area facing away from the pump head 24 and the one vertical separating plane 38 define.
  • the second housing part 16 forms a trough-shaped receptacle into which the motor pump unit 18 with its pump head 24 dips.
  • the second housing part 16 can be separated from the first housing part 14, without it being necessary to completely dismantle the housing 12.

Landscapes

  • Cleaning By Liquid Or Steam (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Details Of Reciprocating Pumps (AREA)
  • Vibration Prevention Devices (AREA)

Description

Die Erfindung betrifft ein Hochdruckreinigungsgerät mit den Merkmalen des Oberbegriffs von Patentanspruch 1.The invention relates to a high-pressure cleaning device having the features of the preamble of patent claim 1.

Mittels derartiger Hochdruckreinigungsgeräte kann eine Reinigungsflüssigkeit, vorzugsweise Wasser, unter Druck gesetzt und auf eine zu reinigende Fläche gerichtet werden. Die Reinigungsflüssigkeit kann über eine Flüssigkeitszufuhrleitung der Pumpe des Hochdruckreinigungsgerätes zugeführt werden. Die Flüssigkeitszufuhrleitung kann hierzu an ein erstes Anschlusselement der Pumpe angeschlossen werden. Von der Pumpe wird die Reinigungsflüssigkeit unter Druck gesetzt und die unter Druck gesetzte Reinigungsflüssigkeit kann über ein zweites Anschlusselement der Pumpe und eine Flüssigkeitsabgabeleitung, die an das zweite Anschlusselement angeschlossen werden kann, abgegeben werden. Die beiden Anschlusselemente befinden sich an einem Pumpenkopf der Pumpe, der üblicherweise auf der dem Motor abgewandten Seite der Pumpe angeordnet ist. Der Motor und die Pumpe bilden gemeinsam eine Motorpumpeneinheit, die von einem Gehäuse des Hochdruckreinigungsgerätes umgeben ist.By means of such high-pressure cleaning devices, a cleaning liquid, preferably water, can be pressurized and directed to a surface to be cleaned. The cleaning liquid can be supplied via a liquid supply line to the pump of the high-pressure cleaning device. For this purpose, the liquid supply line can be connected to a first connection element of the pump. From the pump, the cleaning liquid is pressurized and the pressurized cleaning liquid can be discharged via a second connection element of the pump and a liquid discharge line, which can be connected to the second connection element. The two connection elements are located on a pump head of the pump, which is usually arranged on the side facing away from the motor of the pump. The motor and the pump together form a motor pump unit, which is surrounded by a housing of the high-pressure cleaner.

Aus der Veröffentlichung DE 91 00 904 U1 ist ein Hochdruckreinigungsgerät bekannt, bei dem das Gehäuse von zwei Gehäusehalbschalen gebildet wird. Die beiden Gehäusehalbschalen definieren in der Gebrauchslage des Hochdruckreinigungsgerätes eine horizontal ausgerichtete Trennebene. Die Motorpumpeneinheit kann in eine untere Gehäusehalbschale eingesetzt werden, und anschließend kann eine obere Gehäusehalbschale auf die untere Gehäusehalbschale aufgesetzt werden. Auf ihrer Oberseite weist die obere Gehäusehalbschale einen Tragegriff auf. Sollen an der Motorpumpeneinheit Wartungsarbeiten durchgeführt werden, so ist es erforderlich, die komplette Motorpumpeneinheit dem Gehäuse zu entnehmen. Wartungsarbeiten sind in der Regel an der Pumpe, insbesondere am Pumpenkopf durchzuführen, da sich dort die meisten Verschleißteile befinden, die erforderlichenfalls ausgetauscht werden müssen.
Aus der Veröffentlichung WO 2010/054701 A1 ist ein Hochdruckreinigungsgerät bekannt, dessen Gehäuse von einem haubenartigen Frontteil und einem wannenartigen, nach Art eines Sackkarre ausgestalteten Rückenteil gebildet wird. Zwischen dem Frontteil und dem Rückenteil ist eine Motorpumpeneinheit angeordnet, die am Rückenteil gehalten ist.
Ein weiteres Hochdruckreinigungsgerät mit einem zweiteiligen Gehäuse ist aus der Veröffentlichung US 5,429,306 A bekannt. Das Hochdruckreinigungsgerät weist einen U-förmigen Schubbügel auf mit zwei Schenkeln, die über einen Handgriff miteinander verbunden sind. Am Gehäuse sind Laufrollen gelagert, mit deren Hilfe das Hochdruckreinigungsgerät nach Art einer Sackkarre verfahren werden kann.
Aus der Veröffentlichung DE 36 19 326 A1 ist ein Hochdruckreinigungsgerät mit den Merkmalen des Oberbegriffes von Patentanspruch 1 bekannt. Das Hochdruckreinigungsgerät weist zwei Gehäuseteile auf, die gemeinsam eine Motorpumpeneinheit umgeben. Das erste Gehäuseteil wird von zwei Halbschalen gebildet, die einen stabilen Boden aufweisen, der auf Füßen ruht. Ein Motorsockel der Motorpumpeneinheit ist mit dem Boden verschraubt. Die Längsachse der Motorpumpeneinheit ist horizontal ausgerichtet. Das zweite Gehäuseteil bildet eine Haube aus, die eine Stirnseite der Motorpumpeneinheit übergreift und seitlich vom ersten Gehäuseteil absteht, von dem es getragen wird.From the publication DE 91 00 904 U1 a high pressure cleaning device is known in which the housing is formed by two housing halves. The two housing half-shells define a horizontally oriented parting plane in the position of use of the high-pressure cleaning device. The motor pump unit can be inserted into a lower housing half shell, and then an upper housing half shell can be placed on the lower housing half shell. On its upper side, the upper housing half shell has a carrying handle. If maintenance work is to be carried out on the motor pump unit, it is necessary to have the complete motor pump unit to remove the housing. Maintenance work is usually carried out on the pump, in particular on the pump head, since there are the most wear parts, which must be replaced if necessary.
From the publication WO 2010/054701 A1 is a high-pressure cleaner is known, the housing is formed by a hood-like front part and a trough-like, designed like a sack truck back part. Between the front part and the back part of a motor pump unit is arranged, which is held on the back part.
Another high-pressure cleaner with a two-part housing is from the publication US 5,429,306 A known. The high-pressure cleaner has a U-shaped push bar with two legs, which are connected to each other via a handle. On the housing rollers are stored, with the help of the high-pressure cleaning device can be moved in the manner of a sack truck.
From the publication DE 36 19 326 A1 is a high-pressure cleaner with the features of the preamble of claim 1 is known. The high-pressure cleaning device has two housing parts, which together surround a motor pump unit. The first housing part is formed by two half-shells, which have a stable bottom, which rests on feet. A motor base of the motor pump unit is bolted to the floor. The longitudinal axis of the motor pump unit is aligned horizontally. The second housing part forms a hood, which engages over an end face of the motor pump unit and projects laterally from the first housing part, by which it is supported.

Aufgabe der vorliegenden Erfindung ist es, ein Hochdruckreinigungsgerät der gattungsgemäßen Art derart weiterzubilden, dass Wartungsarbeiten am Pumpenkopf der Motorpumpeneinheit einfach durchgeführt werden können, wobei das Hochdruckreinigungsgerät eine kompakte Ausgestaltung aufweist und wobei das Hochdruckreinigungsgerät zum Transport auf einfache Weise auf einer Stellfläche fixiert werden kann.
Diese Aufgabe wird durch ein Hochdruckreinigungsgerät mit den Merkmalen von Patentanspruch 1 gelöst.
Das erfindungsgemäße Hochdruckreinigungsgerät zeichnet sich durch ein mehrteiliges Gehäuse aus, wobei zusätzlich zu zwei Halbschalen, die ein erstes Gehäuseteil ausbilden und einen dem Pumpenkopf abgewandten Bereich der Motorpumpeneinheit umgeben, ein zweites Gehäuseteil zum Einsatz kommt, das mit dem ersten Gehäuseteil lösbar verbunden ist und das eine wannenartige Aufnahme ausbildet. In die wannenartige Aufnahme ragt der Pumpenkopf der Motorpumpeneinheit hinein.
Das erste Anschlusselement und das zweite Anschlusselement des Pumpenkopfes befinden sich somit in Höhe des zweiten Gehäuseteils, das mindestens eine Durchbrechung aufweisen kann für die Anschlusselemente. Insbesondere kann vorgesehen sein, dass das erste Anschlusselement und/oder das zweite Anschlusselement die mindestens eine Durchbrechung durchgreift und nach außen über das zweite Gehäuseteil hervorsteht.
Wartungsarbeiten können am Pumpenkopf des erfindungsgemäßen Hochdruckreinigungsgerätes auf einfache Weise durchgeführt werden, denn hierzu ist es lediglich erforderlich, die lösbare Verbindung zwischen dem ersten Gehäuseteil und dem zweiten Gehäuseteil zu trennen, so dass anschließend das zweite Gehäuseteil entfernt werden kann. Nach Entfernen des zweiten Gehäuseteils ist der Pumpenkopf unmittelbar für Wartungsarbeiten zugänglich, ohne dass es erforderlich ist, die komplette Motorpumpeneinheit vom Gehäuse des Hochdruckreinigungsgerätes zu lösen. Für Wartungsarbeiten am Pumpenkopf kann vielmehr das erste Gehäuseteil an der Motorpumpeneinheit verbleiben, eine komplette Demontage des Gehäuses ist somit nicht erforderlich.Object of the present invention is to develop a high-pressure cleaner of the generic type such that maintenance work on the pump head of the motor pump unit can be easily performed, the high-pressure cleaner has a compact design and the high-pressure cleaner can be fixed for transport in a simple manner on a footprint.
This object is achieved by a high-pressure cleaner with the features of claim 1.
The high-pressure cleaner according to the invention is characterized by a multi-part housing, wherein in addition to two half-shells which form a first housing part and a pump head facing away from the area of the motor pump unit, a second housing part is used, which is releasably connected to the first housing part and the one forms a trough-like receptacle. In the trough-like recording of the pump head of the motor pump unit protrudes.
The first connection element and the second connection element of the pump head are thus in the amount of the second housing part, which may have at least one opening for the connection elements. In particular, it can be provided that the first connection element and / or the second connection element penetrates the at least one opening and protrudes outward beyond the second housing part.
Maintenance work can be performed on the pump head of the high-pressure cleaning device according to the invention in a simple manner, for this it is only necessary to separate the detachable connection between the first housing part and the second housing part, so that subsequently the second housing part can be removed. After removing the second housing part, the pump head is immediately accessible for maintenance without it being necessary to detach the complete motor pump unit from the housing of the high-pressure cleaning device. For maintenance work on the pump head Rather, the first housing part may remain on the motor pump unit, a complete disassembly of the housing is not required.

Nach Abtrennen des zweiten Gehäuseteils vom ersten Gehäuseteil können beispielsweise auf einfache Weise Dichtungen im Bereich des Pumpenkopfes, insbesondere im Bereich des ersten und des zweiten Anschlusselementes ausgetauscht werden.After separating the second housing part from the first housing part, for example, seals in the region of the pump head, in particular in the area of the first and the second connection element, can be exchanged in a simple manner.

Die beiden Halbschalen des ersten Gehäuseteils sitzen in einer Gebrauchslage des Hochdruckreinigungsgeräts auf dem zweiten Gehäuseteil auf. In dieser Gebrauchslage wird somit das Gewicht der Motorpumpeneinheit über die beiden Halbschalen auf das zweite Gehäuseteil übertragen. Das zweite Gehäuseteil kann eine Stütze ausbilden, beispielsweise einen Stützfuß, der das Gewicht der Motorpumpeneinheit aufnimmt und sich an einer Stellfläche abstützt, auf der das Hochdruckreinigungsgerät abgestellt ist.The two half-shells of the first housing part sit in a position of use of the high-pressure cleaning device on the second housing part. In this position of use, the weight of the motor pump unit is thus transmitted via the two half-shells to the second housing part. The second housing part can form a support, for example a support foot, which receives the weight of the motor pump unit and is supported on a footprint on which the high-pressure cleaning device is turned off.

Das erfindungsgemäße Hochdruckreinigungsgerät umfasst einen U-förmigen Schubbügel mit zwei Schenkeln, die über einen Handgriff miteinander verbunden sind. Zum Bewegen entlang einer Bodenfläche kann der Schubbügel vom Benutzer am Handgriff erfasst werden, der über die beiden Schenkel mit dem Gehäuse des Hochdruckreinigungsgerätes verbunden ist. Die beiden Schenkel sind jeweils an einem Lagerelement gehalten, das an einer Halbschale des ersten Gehäuseteils angeordnet ist. An den beiden Halbschalen des ersten Gehäuseteils ist nicht nur die Motorpumpeneinheit gehalten sondern zusätzlich sind über Lagerelemente auch die beiden Schenkel des U-förmigen Schubbügels an den Halbschalen gelagert.The high-pressure cleaning device according to the invention comprises a U-shaped push bar with two legs, which are connected to one another via a handle. To move along a bottom surface of the push bar can be detected by the user on the handle, which is connected via the two legs with the housing of the high-pressure cleaner. The two legs are each held on a bearing element which is arranged on a half-shell of the first housing part. At the two half-shells of the first housing part not only the motor pump unit is held but in addition, the two legs of the U-shaped push bar are mounted on the half shells via bearing elements.

Die Lagerelemente sind günstigerweise einteilig mit den Halbschalen verbunden. Jeweils eine Halbschale bildet bei einer bevorzugten Ausführungsform zusammen mit einem Schubbügel-Lagerelement ein einteiliges Kunststoffformteil aus.The bearing elements are conveniently integrally connected to the half shells. In each case, a half-shell forms in a preferred embodiment, together with a push-bar bearing element from a one-piece plastic molding.

Das zweite Gehäuseteil weist zwei Öffnungen auf, die jeweils fluchtend zu einem Lagerelement ausgerichtet sind, wobei in die Öffnungen jeweils ein dem Handgriff des Schubbügels abgewandter Endbereich eines Schenkels einführbar ist. Dies erlaubt eine besonders kompakte Ausgestaltung des Hochdruckreinigungsgerätes.The second housing part has two openings which are each aligned in alignment with a bearing element, wherein in the openings in each case one of the handle of the push bar remote end portion of a leg is inserted. This allows a particularly compact design of the high-pressure cleaning device.

Der U-förmige Schubbügel ist verschiebbar am Gehäuse gehalten, so dass er zwischen einer eingeschobenen Stellung, in der der Handgriff einen vergleichsweise geringen Abstand zum Gehäuse aufweist, und einer herausgezogenen Stellung, in der der Handgriff einen verhältnismäßig großen Abstand zum Gehäuse aufnimmt, hin und her verschiebbar ist. Die Lagerelemente können hierzu in Form von Führungsgliedern ausgestaltet sein, an denen jeweils ein Schenkel des Schubbügels verschiebbar gehalten ist. In der eingeschobenen Stellung können die dem Handgriff abgewandten freien Enden der beiden Schenkel in die Öffnungen des zweiten Gehäuseteils eintauchen, und in der herausgezogenen Stellung können die freien Enden der Schenkel einen Abstand zu den Öffnungen des zweiten Gehäuseteils einnehmen, insbesondere kann vorgesehen sein, dass die freien Enden der Schenkel in der herausgezogenen Stellung des Schubbügels in Höhe der Lagerelemente angeordnet sind.The U-shaped push bar is slidably held on the housing so that it is between an inserted position in which the handle has a comparatively small distance from the housing, and an extended position in which the handle receives a relatively large distance from the housing, and is displaceable ago. For this purpose, the bearing elements can be designed in the form of guide members, on each of which a leg of the push handle is slidably held. In the retracted position, the remote from the handle free ends of the two legs can dive into the openings of the second housing part, and in the extended position, the free ends of the legs can take a distance to the openings of the second housing part, in particular can be provided that the free ends of the legs are arranged in the extended position of the push bar at the level of the bearing elements.

Gemäß der Erfindung sind die Schenkel im Bereich zwischen den Lagerelementen und den Öffnungen des zweiten Gehäuseteils an der Außenseite des Gehäuses im Abstand zum Gehäuse positionierbar. Die Schenkel sind somit dem Benutzer außerhalb des Gehäuses des Hochdruckreinigungsgerätes zugänglich. Dies gibt dem Benutzer die Möglichkeit, ein Spann- oder Zugmittel, beispielsweise ein Zugseil oder ein Zugband, um die Schenkel des Schubbügels, sofern dieser seine eingeschobene Stellung einnimmt, herumzuführen, so dass das Hochdruckreinigungsgerät zum Transport auf einfache Weise auf einer Stellfläche, beispielsweise auf einer Ladepritsche, fixiert werden kann.According to the invention, the legs are positioned in the region between the bearing elements and the openings of the second housing part on the outside of the housing at a distance from the housing. The legs are thus accessible to the user outside the housing of the high-pressure cleaner. This gives the user the ability to a tensioning or traction means, such as a pull rope or a drawstring, around the legs of the push handle, if this occupies its retracted position, around, so that the high-pressure cleaner for transport in a simple manner on a footprint, for example a loading platform, can be fixed.

Von Vorteil ist es, wenn die beiden Gehäuseschalen des ersten Gehäuseteils eine in einer Gebrauchslage des Hochdruckreinigungsgerätes vertikal ausgerichtete Trennebene definieren. Unter einer Gebrauchslage des Hochdruckreinigungsgerätes wird hierbei eine Lage des Hochdruckreinigungsgerätes verstanden, die es während des Betriebes des Hochdruckreinigungsgerätes einnimmt.It is advantageous if the two housing shells of the first housing part a vertically aligned in a position of use of the high-pressure cleaner Define separation level. A position of use of the high-pressure cleaning device here means a position of the high-pressure cleaning device which it occupies during operation of the high-pressure cleaning device.

Die Bereitstellung einer vertikalen Trennebene für das erste Gehäuseteil ermöglicht eine einfache Montage des Hochdruckreinigungsgerätes, da die beiden Halbschalen seitlich an die Motorpumpeneinheit angesetzt werden können, um diese nach erfolgter Montage in Umfangsrichtung vollständig zu umgeben.The provision of a vertical parting plane for the first housing part allows easy installation of the high-pressure cleaning device, since the two half-shells are attached to the side of the motor pump unit can completely surround this after mounting in the circumferential direction.

Günstig ist es, wenn die beiden Halbschalen eine Stirnwand des Gehäuses ausbilden, in der Lüftungsschlitze angeordnet sind. Über die Lüftungsschlitze kann der Motorpumpeneinheit Kühlluft zugeführt werden.It is advantageous if the two half shells form an end wall of the housing, are arranged in the ventilation slots. Cooling air can be supplied to the motor pump unit via the ventilation slots.

Bei einer bevorzugten Ausgestaltung der Erfindung bilden die beiden Halbschalen des ersten Gehäuseteils gemeinsam einen Tragegriff aus.In a preferred embodiment of the invention, the two half-shells of the first housing part together form a carrying handle.

Günstig ist es, wenn die beiden Halbschalen des ersten Gehäuseteils gemeinsam eine Vertiefung ausbilden, in die ein Schaltelement, beispielsweise ein Hauptschalter des Hochdruckreinigungsgerätes, insbesondere ein Drehschalter, eingesetzt werden kann. Dies hat eine weitere Vereinfachung der Montage des Hochdruckreinigungsgerätes zur Folge.It is advantageous if the two half-shells of the first housing part together form a depression into which a switching element, for example a main switch of the high-pressure cleaning device, in particular a rotary switch, can be used. This results in a further simplification of the installation of the high-pressure cleaner.

Die Motorpumpeneinheit ist bei einer vorteilhaften Ausführungsform der Erfindung über elastisch verformbare Dämpfungselemente an den beiden Halbschalen des ersten Gehäuseteils gehalten. Mittels der elastisch verformbaren Dämpfungselemente können insbesondere mechanische Schwingungen der Motorpumpeneinheit gedämpft werden.The motor pump unit is held in an advantageous embodiment of the invention via elastically deformable damping elements on the two half-shells of the first housing part. By means of the elastically deformable damping elements in particular mechanical vibrations of the motor pump unit can be damped.

Die beiden Halbschalen des ersten Gehäuseteils umfassen günstigerweise Ausnehmungen, in die die elastisch verformbaren Dämpfungselemente eingesetzt werden können.The two half-shells of the first housing part advantageously comprise recesses into which the elastically deformable damping elements can be inserted.

Die elastisch verformbaren Dämpfungselemente umgeben bei einer vorteilhaften Ausführungsform jeweils einen Haltearm der Motorpumpeneinheit. Die Motorpumpeneinheit kann beispielsweise zwei, drei oder vier Haltearme aufweisen, die über den Umfang der Motorpumpeneinheit verteilt angeordnet sind und mit ihren freien Endbereichen jeweils in ein elastisch verformbares Dämpfungselement eintauchen, das in einer Ausnehmung der Halbschalen fixiert ist.In an advantageous embodiment, the elastically deformable damping elements each surround a holding arm of the motor pump unit. The motor pump unit may, for example, have two, three or four retaining arms, which are distributed over the circumference of the motor pump unit and with their free end regions each immersed in an elastically deformable damping element, which is fixed in a recess of the half-shells.

Bei einer derartigen Ausgestaltung erfolgt somit die Lagerung der Motorpumpeneinheit am ersten Gehäuseteil über die Haltearme und die Dämpfungselemente.In such a configuration, the bearing of the motor pump unit on the first housing part thus takes place via the retaining arms and the damping elements.

Die beiden Halbschalen des ersten Gehäuseteils sind günstigerweise lösbar miteinander verbindbar. Zur lösbaren Verbindung können insbesondere Schraubverbindungen zum Einsatz kommen.The two half-shells of the first housing part are conveniently releasably connectable to each other. For releasable connection in particular screw can be used.

Günstig ist es, wenn die beiden Halbschalen des ersten Gehäuseteils jeweils eine Stufe ausbilden, die an einem Rand des zweiten Gehäuseteils anliegt. Die Stufe ist günstigerweise nach innen gerichtet, so dass die beiden Halbschalen jeweils einen dem zweiten Gehäuseteil zugewandten Kragen ausbilden, mit dem die beiden Halbschalen an der Innenseite des dem ersten Gehäuseteil zugewandten Randes des zweiten Gehäuseteils anliegen.It is advantageous if the two half-shells of the first housing part each form a step which bears against an edge of the second housing part. The step is favorably directed inwards, so that the two half-shells each form a collar facing the second housing part, with which the two half-shells bear against the inside of the edge of the second housing part facing the first housing part.

Bei einer bevorzugten Ausführungsform des erfindungsgemäßen Hochdruckreinigungsgerätes sind am zweiten Gehäuseteil zwei drehbare Laufräder gelagert. Dies ermöglicht es, das Hochdruckreinigungsgerät nach Art einer Sackkarre zu verfahren. Das zweite Gehäuseteil bildet bei einer derartigen Ausgestaltung ein Fahrwerk des Hochdruckreinigungsgerätes aus. Für Wartungsarbeiten kann das zweite Gehäuseteil zusammen mit den daran gelagerten Laufrädern vom ersten Gehäuseteil und der daran gehaltenen Motorpumpeneinheit entfernt werden.In a preferred embodiment of the high-pressure cleaning device according to the invention, two rotatable wheels are mounted on the second housing part. This makes it possible to move the high-pressure cleaner in the manner of a sack truck. The second housing part forms in such a configuration, a chassis of the high-pressure cleaner. For maintenance, the second housing part can be removed together with the wheels mounted thereon from the first housing part and the motor pump unit held thereon.

Von Vorteil ist es, wenn die beiden Laufräder an einer Achse drehbar gelagert sind, die das zweite Gehäuseteil durchgreift.It is advantageous if the two wheels are rotatably mounted on an axle which passes through the second housing part.

Die Achse ist bevorzugt senkrecht zu einer Trennebene der beiden Halbschalen ausgerichtet.The axis is preferably aligned perpendicular to a parting plane of the two half-shells.

Günstig ist es, wenn die Achse die wannenartige Aufnahme des zweiten Gehäuseteils durchgreift. Die wannenartige Aufnahme nimmt somit zum Einen den Pumpenkopf der Motorpumpeneinheit auf, zum Anderen nimmt sie die Achse auf, an der die beiden Laufräder drehbar gelagert sind.It is advantageous if the axis passes through the trough-like receptacle of the second housing part. The trough-like receptacle thus takes on the one hand the pump head of the motor pump unit, on the other hand, it takes on the axis on which the two wheels are rotatably mounted.

Die nachfolgende Beschreibung bevorzugter Ausführungsformen der Erfindung dient im Zusammenhang mit der Zeichnung der näheren Erläuterung. Es zeigen:

Figur 1:
eine erste perspektivische Darstellung einer ersten Ausführungsform eines erfindungsgemäßen Hochdruckreinigungsgerätes, wobei ein Schubbügel des Hochdruckreinigungsgerätes eine herausgezogene Stellung einnimmt;
Figur 2:
eine zweite perspektivische Darstellung des Hochdruckreinigungsgerätes aus Figur 1, wobei der Schubbügel eine eingeschobene Stellung einnimmt;
Figur 3:
eine perspektivische Darstellung des Hochdruckreinigungsgerätes aus Figur 2, wobei eine Halbschale eines ersten Gehäuseteils entfernt wurde;
Figur 4:
eine perspektivische Darstellung einer Motorpumpeneinheit und einer Halbschale eines ersten Gehäuseteils des Hochdruckreinigungsgerätes aus Figur 2;
Figur 5:
eine perspektivische Darstellung der Innenseite der Halbschale aus Figur 4;
Figur 6:
eine perspektivische Darstellung der Außenseite der Halbschale aus Figur 4;
Figur 7:
eine perspektivische Darstellung eines zweiten Gehäuseteils mit daran gelagerten Laufrädern des Hochdruckreinigungsgerätes aus Figur 2, und
Figur 8:
eine perspektivische Darstellung einer zweiten Ausführungsform eines erfindungsgemäßen Hochdruckreinigungsgerätes.
The following description of preferred embodiments of the invention is used in conjunction with the drawings for further explanation. Show it:
FIG. 1:
a first perspective view of a first embodiment of a high-pressure cleaning device according to the invention, wherein a push handle of the high-pressure cleaning device assumes an extended position;
FIG. 2:
a second perspective view of the high pressure cleaning device FIG. 1 wherein the push bar assumes an inserted position;
FIG. 3:
a perspective view of the high pressure cleaning device FIG. 2 wherein a half shell of a first housing part has been removed;
FIG. 4:
a perspective view of a motor pump unit and a half-shell of a first housing part of the high-pressure cleaner from FIG. 2 ;
FIG. 5:
a perspective view of the inside of the half-shell FIG. 4 ;
FIG. 6:
a perspective view of the outside of the half-shell FIG. 4 ;
FIG. 7:
a perspective view of a second housing part mounted thereon wheels of the high-pressure cleaning device FIG. 2 , and
FIG. 8:
a perspective view of a second embodiment of a high-pressure cleaning device according to the invention.

In den Figuren 1 bis 7 ist schematisch eine erste vorteilhafte Ausführungsform eines erfindungsgemäßen Hochdruckreinigungsgerätes 10 in einer Gebrauchslage dargestellt mit einem Gehäuse 12, das ein erstes Gehäuseteil 14 und ein zweites Gehäuseteil 16 aufweist. Wie insbesondere aus den Figuren 3 und 4 deutlich wird, umgibt das Gehäuse 12 eine Motorpumpeneinheit 18 mit einem Elektromotor 20 und einer vom Elektromotor 20 angetriebenen Pumpe 22. Letztere bildet auf ihrer dem Elektromotor 20 abgewandten Seite einen Pumpenkopf 24 aus mit einem ersten Anschlusselement in Form eines Sauganschlusses 26 und mit einem zweiten Anschlusselement in Form eines Druckanschlusses 28. An den Sauganschluss kann eine Saugleitung, vorzugsweise ein Saugschlauch angeschlossen werden, so dass der Pumpe 22 unter Druck zu setzende Reinigungsflüssigkeit, beispielsweise Wasser, zugeführt werden kann. An den Druckanschluss 28 kann eine Druckleitung, vorzugsweise ein Druckschlauch angeschlossen werden, über den die von der Pumpe 22 unter Druck gesetzte Reinigungsflüssigkeit abgegeben werden kann.In the FIGS. 1 to 7 schematically shows a first advantageous embodiment of a high-pressure cleaner 10 according to the invention in a position of use shown with a housing 12 having a first housing part 14 and a second housing part 16. As in particular from the Figures 3 and 4 becomes clear, the housing 12 surrounds a motor pump unit 18 with an electric motor 20 and a driven by the electric motor 20 pump 22. The latter forms on its side facing away from the electric motor 20 a pump head 24 with a first connection element in the form of a suction port 26 and with a second connection element in the form of a pressure port 28. At the suction port, a suction line, preferably a suction hose can be connected so that the pump 22 under pressure to be set cleaning fluid, such as water, can be supplied. To the pressure port 28, a pressure line, preferably a pressure hose can be connected, via which the set by the pump 22 under pressure cleaning fluid can be discharged.

Das erste Gehäuseteil 14 umgibt die Motorpumpeneinheit 18 im Bereich des Elektromotors 22 in Umfangsrichtung und bildet auf der dem zweiten Gehäuseteil 16 abgewandten Oberseite eine Stirnwand 30 aus, in die mehrere Lüftungsschlitze 32 eingeformt sind. Über die Lüftungsschlitze 32 kann der Motorpumpeneinheit 18 Kühlluft zugeführt werden.The first housing part 14 surrounds the motor pump unit 18 in the region of the electric motor 22 in the circumferential direction and forms on the second housing part 16 facing away from an upper end wall 30, in which a plurality of ventilation slots 32 are formed. Via the ventilation slots 32, the motor pump unit 18 cooling air can be supplied.

Das erste Gehäuseteil 14 umfasst eine erste Halbschale 34 und eine zweite Halbschale 36. Die beiden Halbschalen 34 und 36 umgeben einen dem Pumpenkopf 24 abgewandten Bereich der Motorpumpeneinheit 18 in Umfangsrichtung und sind im Wesentlichen spiegelsymmetrisch zueinander ausgestaltet. Sie definieren zwischen sich eine vertikal ausgerichtete Trennebene 38, in der sie mit ihren einander zugewandten Rändern aufeinandertreffen und zwischen sich eine Trennfuge 40 ausbilden. Im Bereich einer Vorderseite 42 des Hochdruckreinigungsgerätes 10 bilden die beiden Halbschalen 34, 36 gemeinsam einen Tragegriff 44 aus, an den sich in Richtung der oberen Stirnwand 30 eine Vertiefung 46 anschließt, in der ein Hauptschalter in Form eines Drehschalters 48 angeordnet ist. Innerhalb des Gehäuses ist der Drehschalter 48 über einen Schwenkarm 50 und eine sich an den Schwenkarm 50 anschließende Schaltstange 52 mit einer Steuerelektronik 54 der Motorpumpeneinheit 18 gekoppelt. Dies wird insbesondere aus Figur 4 deutlich.The first housing part 14 comprises a first half shell 34 and a second half shell 36. The two half shells 34 and 36 surround a region of the motor pump unit 18 facing away from the pump head 24 in the circumferential direction and are configured substantially mirror-symmetrically with respect to one another. They define between them a vertically oriented parting plane 38 in which they meet with their edges facing each other and form a parting line 40 between them. In the region of a front side 42 of the high-pressure cleaning device 10, the two half shells 34, 36 together form a carrying handle 44, to which a recess 46 connects in the direction of the upper end wall 30, in which a main switch in the form of a rotary switch 48 is arranged. Within the housing of the rotary switch 48 is coupled via a pivot arm 50 and a subsequent to the pivot arm 50 switching rod 52 with a control electronics 54 of the motor pump unit 18. This is especially true FIG. 4 clear.

Die Motorpumpeneinheit 18 weist vier jeweils in einem Winkelabstand von 90° zueinander angeordnete, radial nach außen abstehende Haltearme 56 auf, die jeweils in ein elastisch verformbares Dämpfungselement 58 eintauchen, das formschlüssig von einer innenseitigen Ausnehmung 60 der Halbschalen 34, 36 aufgenommen wird. Die Lagerung der Motorpumpeneinheit 18 am Gehäuse 12 erfolgt somit über die beiden Halbschalen 34, 36 des ersten Gehäuseteils 14.The motor pump unit 18 has four holding arms 56 which are arranged at an angle of 90 ° to one another and project radially outwards, each of which dipping into an elastically deformable damping element 58 which is positively received by an inside recess 60 of the half-shells 34, 36. The bearing of the motor pump unit 18 on the housing 12 thus takes place via the two half shells 34, 36 of the first housing part 14.

Das zweite Gehäuseteil 16 bildet eine wannenförmige Aufnahme 62 mit einer Bodenwand 64, zwei im Abstand zueinander angeordneten Seitenwänden 66, 68, einer Rückwand 70 und einer Vorderwand 72, die in Richtung des ersten Gehäuseteils 14 von der Bodenwand 64 nach oben abstehen. In die Bodenwand 64 sind eine Vielzahl von Lüftungsschlitzen 74 eingeformt und die Vorderwand 72 weist eine erste Durchbrechung 76 und eine zweite Durchbrechung 78 auf. Die beiden Seitenwände 66, 68 sind in ihren der Bodenwand 64 abgewandten Endbereichen einander zugewandt und weisen in diesen Endbereichen jeweils eine Öffnung 80 bzw. 82 auf. Die Bodenwand 64 bildet einen Stützfuß 83, mit dem das Hochdruckreinigungsgerät auf einer Stellfläche abgestellt werden kann. Der Pumpenkopf 24 taucht in die Aufnahme 62 ein.The second housing part 16 forms a trough-shaped receptacle 62 with a bottom wall 64, two spaced-apart side walls 66, 68, a rear wall 70 and a front wall 72, which protrude in the direction of the first housing part 14 of the bottom wall 64 upwards. In the bottom wall 64, a plurality of ventilation slots 74 are formed and the front wall 72 has a first opening 76 and a second opening 78. The two side walls 66, 68 are facing each other in their end regions facing away from the bottom wall 64 and each have an opening 80 and 82 in these end regions. The bottom wall 64 forms a support leg 83, with which the high-pressure cleaning device can be parked on a footprint. The pump head 24 dips into the receptacle 62.

Die Aufnahme 62 wird bei der in den Figuren 1 bis 7 dargestellten ersten Ausführungsform des erfindungsgemäßen Hochdruckreinigungsgerätes von einer Achse 84 durchgriffen, die senkrecht zur Trennebene 38 ausgerichtet ist und die über die Seitenwände 66, 68 nach außen aus dem zweiten Gehäuseteil 16 herausragt. An ihren herausragenden Enden trägt die Achse 84 ein erstes Laufrad 86 und ein zweites Laufrad 88, die an der Achse 84 drehbar gelagert sind.The recording 62 is at the in the FIGS. 1 to 7 illustrated first embodiment of the high-pressure cleaning device according to the invention by an axis 84 penetrated, which is aligned perpendicular to the parting plane 38 and protrudes beyond the side walls 66, 68 outwardly from the second housing part 16. At its protruding ends, the axle 84 carries a first impeller 86 and a second impeller 88 which are rotatably mounted on the axle 84.

Das zweite Gehäuseteil 16 bildet in Kombination mit der Achse 84 und den beiden Laufrädern 86, 88 ein Fahrwerk 90 des Hochdruckreinigungsgerätes 10 aus. Das zweite Gehäuseteil 16 trägt das erste Gehäuseteil 14 und die am ersten Gehäuseteil 14 gelagerte Motorpumpeneinheit 18. Die beiden Halbschalen 34, 36 weisen hierzu dem zweiten Gehäuseteil 16 zugewandt jeweils eine nach innen gerichtete Stufe 92 auf, an die sich ein Kragen 94 anschließt. Dies wird insbesondere aus den Figuren 5 und 6 deutlich. Die Aufnahme 62 des zweiten Gehäuseteils 16 weist an ihrer Oberseite einen umlaufenden Rand 96 auf, auf dem die beiden Halbschalen 34, 36 mit ihren Stufen 92 aufsitzen. Die Kragen 94 der beiden Halbschalen 34, 36 liegen an der Innenseite des Randes 96 an und sind in diesen Bereichen über Verbindungsschrauben 98 mit dem zweiten Gehäuseteil 16 verschraubt. Über die Stufen 92 wird somit das Gewicht des ersten Gehäuseteils 14 und der daran gelagerten Motorpumpeneinheit 18 vom zweiten Gehäuseteil 16 getragen.The second housing part 16 forms in combination with the axis 84 and the two wheels 86, 88 a chassis 90 of the high-pressure cleaning device 10. The second housing part 16 carries the first housing part 14 and the motor housing mounted on the first housing part 14. The two half-shells 34, 36 have facing the second housing part 16 each have an inwardly directed step 92, to which a collar 94 connects. This is especially true of the Figures 5 and 6 clear. The receptacle 62 of the second housing part 16 has on its upper side a peripheral edge 96, on which the two half-shells 34, 36 are seated with their steps 92. The collars 94 of the two half shells 34, 36 bear against the inside of the edge 96 and are screwed in these areas via connecting screws 98 with the second housing part 16. The weight of the first housing part 14 and the motor pump unit 18 mounted thereon are thus supported by the second housing part 16 via the steps 92.

An ihren einander abgewandten Außenseiten bilden die beiden Halbschalen 34, 36 jeweils ein Lagerelement 100, 102 in Form eines Führungskanals 104. Die Führungskanäle 104 sind parallel zum Tragegriff 44 ausgerichtet. In den Führungskanälen 104 ist ein erster Schenkel 106 bzw. ein zweiter Schenkel 108 eines U-förmigen Schubbügels 110 verschiebbar gehalten. Über einen Handgriff 112 sind die beiden Schenkel 106, 108 miteinander verbunden. Der Schubbügel 110 kann zwischen einer in den Figuren 2 und 3 dargestellten eingeschobenen Stellung und einer in Figur 1 dargestellten herausgezogenen Stellung hin und her bewegt werden. In der eingeschobenen Stellung nimmt der Handgriff 112 einen geringeren Abstand zum Gehäuse 12 ein als in der herausgezogenen Stellung. In Höhe der Führungskanäle 104 sind die Halbschalen 34, 35 jeweils von einer Abdeckung 105 abgedeckt, die eine flügelartige Stütze 114 für eine Sprühlanze (nicht dargestellt) ausbildet, die an das freie Ende eines Druckschlauches angeschlossen werden kann. Fluchtend zu den flügelartigen Stützen 114 weist das zweite Gehäuseteil 36 jeweils eine köcherartige Aufnahme 116 auf, in die die Sprühlanze mit ihrem freien Endbereich eingesetzt werden kann.On their outer sides facing away from each other, the two half shells 34, 36 each form a bearing element 100, 102 in the form of a guide channel 104. The guide channels 104 are aligned parallel to the carrying handle 44. In the guide channels 104, a first leg 106 and a second leg 108 of a U-shaped push handle 110 is slidably held. Via a handle 112, the two legs 106, 108 are connected to each other. The push bar 110 can between one in the Figures 2 and 3 shown inserted position and a in FIG. 1 shown withdrawn position to be moved back and forth. In the retracted position, the handle 112 takes a smaller distance to the housing 12 than in the pulled-out position. At the level of the guide channels 104, the half-shells 34, 35 are each covered by a cover 105, which forms a wing-like support 114 for a spray lance (not shown), which can be connected to the free end of a pressure hose. In alignment with the wing-like supports 114, the second housing part 36 each has a quiver-like receptacle 116 into which the spray lance can be inserted with its free end region.

In der eingeschobenen Stellung tauchen die beiden Schenkel 106, 108 mit ihren dem Handgriff 112 abgewandten freien Enden in die Öffnungen 80 bzw. 82 des zweiten Gehäuseteils 16 ein. Im Bereich zwischen den Öffnungen 80 bzw. 82 und den Lagerelementen 100, 102 sind die Schenkel 106, 108 im Abstand zum Gehäuse 12 angeordnet. In diesem Bereich sind sie somit dem Benutzer des Hochdruckreinigungsgerätes 10 unmittelbar zugänglich. Dies gibt dem Benutzer die Möglichkeit, Spann- oder Zugmittel, beispielsweise ein Zugband, an den Schenkeln 106, 108 festzulegen, um das Hochdruckreinigungsgerät 10 während eines Transportes auf einer Stellfläche zu sichern.In the retracted position, the two legs 106, 108 with their free ends remote from the handle 112 dip into the openings 80 and 82 of the second housing part 16. In the area between the openings 80 and 82 and the bearing elements 100, 102, the legs 106, 108 are arranged at a distance from the housing 12. In this area, they are thus directly accessible to the user of the high-pressure cleaning device 10. This gives the user the option of tightening or pulling means, such as a drawstring, to be fixed to the legs 106, 108 in order to secure the high-pressure cleaning device 10 during transport on a footprint.

Für Wartungsarbeiten kann das zweite Gehäuseteil 16 zusammen mit den Laufrädern 86, 88 und der Achse 84 vom ersten Gehäuseteil 14 getrennt werden. Hierzu ist es lediglich erforderlich, die Verbindungsschrauben 98 zu lösen. Nach Entfernen des zweiten Gehäuseteils 16 vom ersten Gehäuseteil 14 ist die Pumpe 22, insbesondere der Pumpenkopf 24, dem Benutzer unmittelbar zugänglich. Verschleißteile, beispielsweise Dichtungen, können somit auf einfache Weise ausgetauscht werden. Die Motorpumpeneinheit 18 muss hierzu nicht vollständig vom Gehäuse 12 getrennt werden und auch der Schubbügel 110 kann zusammen mit den Abdeckungen 105 am ersten Gehäuseteil 14 verbleiben. Wartungsarbeiten gestalten sich somit am Hochdruckreinigungsgerät 10 sehr einfach.For maintenance purposes, the second housing part 16 can be separated from the first housing part 14 together with the wheels 86, 88 and the axle 84. For this it is only necessary to release the connecting screws 98. After removal of the second housing part 16 from the first housing part 14, the pump 22, in particular the pump head 24, the user directly accessible. Wear parts, such as seals, can thus be easily replaced. For this purpose, the motor pump unit 18 does not have to be completely separated from the housing 12 and also the push bar 110 can remain together with the covers 105 on the first housing part 14. Maintenance work is thus very easy on high-pressure cleaner 10.

In Figur 8 ist eine zweite vorteilhafte Ausführungsform eines erfindungsgemäßen Hochdruckreinigungsgerätes dargestellt, das insgesamt mit dem Bezugszeichen 120 belegt ist. Dieses ist weitgehend identisch ausgebildet wie das voranstehend unter Bezugnahme auf die Figuren 1 bis 7 dargestellte Hochdruckreinigungsgerät 10. Für identische Bauteile werden daher in Figur 8 dieselben Bezugszeichen verwendet wie in den Figuren 1 bis 7 und bezüglich dieser Bauteile wird zur Vermeidung von Wiederholungen auf die voranstehenden Erläuterungen verwiesen.In FIG. 8 a second advantageous embodiment of a high-pressure cleaner according to the invention is shown, which is generally designated by the reference numeral 120. This is largely identical to that described above with reference to the FIGS. 1 to 7 shown high-pressure cleaner 10. For identical components are therefore in FIG. 8 the same reference numerals as in the FIGS. 1 to 7 and with respect to these components, reference is made to the above explanations to avoid repetition.

Das Hochdruckreinigungsgerät 120 unterscheidet sich vom Hochdruckreinigungsgerät 10 lediglich dadurch, dass es weder den Schubbügel 110 mit den beiden Schenkeln 106, 108 und dem Handgriff 112 noch die beiden Laufräder 86, 88 und die Achse 84 aufweist. Das Hochdruckreinigungsgerät 120 ist somit nicht in Form einer Sackkarre ausgebildet, die entlang einer Bodenfläche verfahren werden kann, sondern das Hochdruckreinigungsgerät 120 kann vom Benutzer am Tragegriff 44 getragen werden. Es kann sowohl in der in Figur 8 dargestellten aufrechten Stellung als auch in einer liegenden Stellung betrieben werden.The high-pressure cleaning device 120 differs from the high-pressure cleaning device 10 only in that it has neither the push bar 110 with the two legs 106, 108 and the handle 112 nor the two wheels 86, 88 and the axis 84. The high-pressure cleaning device 120 is thus not designed in the form of a sack truck, which can be moved along a floor surface, but the high-pressure cleaning device 120 can be worn by the user on the carrying handle 44. It can be used both in the FIG. 8 shown upright position as well as in a lying position.

Auch das Hochdruckreinigungsgerät 120 weist ein Gehäuse 12 auf mit einem ersten Gehäuseteil 14 und einem zweiten Gehäuseteil 16, wobei das erste Gehäuseteil 14 zwei Halbschalen 34, 36 umfasst, die die Motorpumpeneinheit 18 in dem dem Pumpenkopf 24 abgewandten Bereich umgeben und die eine vertikale Trennebene 38 definieren. Das zweite Gehäuseteil 16 bildet eine wannenförmige Aufnahme, in die die Motorpumpeneinheit 18 mit ihrem Pumpenkopf 24 eintaucht. Beispielsweise für Wartungsarbeiten kann das zweite Gehäuseteil 16 vom ersten Gehäuseteil 14 getrennt werden, ohne dass es erforderlich ist, das Gehäuse 12 komplett zu demontieren. Insbesondere ist es nicht erforderlich, die Motorpumpeneinheit 18 vollständig vom Gehäuse 12 zu trennen, wenn Verschleißteile am Pumpenkopf 24 ausgetauscht werden sollen. Wartungsarbeiten gestalten sich somit auch am Hochdruckreinigungsgerät 120 sehr einfach.The high-pressure cleaning device 120 also has a housing 12 with a first housing part 14 and a second housing part 16, the first housing part 14 comprising two half shells 34, 36 surrounding the motor pump unit 18 in the area facing away from the pump head 24 and the one vertical separating plane 38 define. The second housing part 16 forms a trough-shaped receptacle into which the motor pump unit 18 with its pump head 24 dips. For example, for maintenance, the second housing part 16 can be separated from the first housing part 14, without it being necessary to completely dismantle the housing 12. In particular, it is not necessary to completely disconnect the motor pump unit 18 from the housing 12 when wearing parts on the pump head 24 are to be replaced. Maintenance work is therefore also very easy on the high-pressure cleaning device 120.

Claims (10)

  1. High-pressure cleaning appliance (10; 120) having a motor-pump unit (18) which comprises a motor (20) and a pump (22) driven by the motor (20), wherein the pump (22) comprises a pump head (24) with a first connecting element (26) for connecting a liquid supply line and with a second connecting element (28) for connecting a liquid discharge line, and having a housing (12) which surrounds the motor-pump unit (18), wherein the housing (12) comprises a first housing part (14) and a second housing part (16), wherein the first housing part (14) comprises two half-shells (34, 36) which together surround in circumferential direction the motor-pump unit (18) in a region remote from the pump head (24) and on which half-shells (34, 36) the motor pump unit (18) is held, and wherein the second housing part (16) is detachably connected to the first housing part (14) and forms a tub-like receptacle (62) into which the pump head (24) dips, characterized in that the two half-shells (34, 36) in a use position of the high-pressure cleaning appliance (10; 120) sit on the second housing part (16), wherein the high-pressure cleaning appliance (10) comprises a U-shaped push bar (110) which is displaceable back and forth between an inserted position and an extended position and which has two legs (106, 108) which are connected to each other by a handle (112), wherein the two legs (106, 108) are each displaceably held on a bearing element (100, 102) which is arranged on a half-shell (34, 36), wherein the second housing part (16) comprises two openings (80, 82) which are each in alignment with a bearing element (100, 102), wherein in each case one end region of a leg (106, 108) remote from the handle (112) is insertible into the openings (80, 82), and wherein the legs (106, 108) are positionable at a distance from the housing (12) in the region between the bearing elements (100, 102) and the openings (80, 82) on the outer side of the housing (12).
  2. High-pressure cleaning appliance in accordance with Claim 1, characterized in that the two half-shells (34, 36) define a vertical separating plane (38).
  3. High-pressure cleaning appliance in accordance with Claim 1 or 2, characterized in that the two half-shells (34, 36) together form a carrying handle (44).
  4. High-pressure cleaning appliance in accordance with any one of the preceding Claims, characterized in that the motor pump unit (18) is held on the two half-shells (34, 36) by elastically deformable damping elements (58).
  5. High-pressure cleaning appliance in accordance with any one of the preceding Claims, characterized in that the two half-shells (34, 36) together form a recess (46) into which a switching element (48) is insertible.
  6. High-pressure cleaning appliance in accordance with any one of the preceding Claims, characterized in that the two half-shells (34, 36) each comprise a step (92) which abuts on a rim (96) of the second housing part (16).
  7. High-pressure cleaning appliance in accordance with any one of the preceding Claims, characterized in that two running wheels (86, 88) are rotatably mounted on the second housing part (16).
  8. High-pressure cleaning appliance in accordance with Claim 7, characterized in that the two running wheels (86, 88) are rotatably mounted on an axis (84) which passes through the second housing part (16).
  9. High-pressure cleaning appliance in accordance with Claim 8, characterized in that the axis (84) is aligned perpendicular to a separating plane (38) of the two half-shells (34, 36).
  10. High-pressure cleaning appliance in accordance with Claim 8 or 9, characterized in that the axis (84) passes through the tub-like receptacle (62) of the second housing part (16).
EP12730568.8A 2012-06-29 2012-06-29 High-pressure cleaning device Active EP2866952B1 (en)

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EP2866952B1 true EP2866952B1 (en) 2018-11-28

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DK (1) DK2866952T3 (en)
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WO2023051928A1 (en) * 2021-09-30 2023-04-06 Alfred Kärcher SE & Co. KG High-pressure cleaning device
WO2023156093A1 (en) * 2022-02-15 2023-08-24 Alfred Kärcher SE & Co. KG High-pressure cleaning device
WO2023156094A1 (en) * 2022-02-15 2023-08-24 Alfred Kärcher SE & Co. KG High-pressure cleaning device

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WO2022122236A1 (en) * 2020-12-11 2022-06-16 Alfred Kärcher SE & Co. KG High-pressure cleaning device
WO2023051928A1 (en) * 2021-09-30 2023-04-06 Alfred Kärcher SE & Co. KG High-pressure cleaning device
WO2023156093A1 (en) * 2022-02-15 2023-08-24 Alfred Kärcher SE & Co. KG High-pressure cleaning device
WO2023156094A1 (en) * 2022-02-15 2023-08-24 Alfred Kärcher SE & Co. KG High-pressure cleaning device

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DK2866952T3 (en) 2019-03-04
CN104411418A (en) 2015-03-11
RU2015102564A (en) 2016-08-20
EP2866952A1 (en) 2015-05-06
RU2601932C2 (en) 2016-11-10
WO2014000824A1 (en) 2014-01-03

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