WO2005028131A1 - Appareil de nettoyage a haute pression - Google Patents

Appareil de nettoyage a haute pression

Info

Publication number
WO2005028131A1
WO2005028131A1 PCT/EP2004/009240 EP2004009240W WO2005028131A1 WO 2005028131 A1 WO2005028131 A1 WO 2005028131A1 EP 2004009240 W EP2004009240 W EP 2004009240W WO 2005028131 A1 WO2005028131 A1 WO 2005028131A1
Authority
WO
WIPO (PCT)
Prior art keywords
cover
cleaning device
pressure cleaning
opening
housing
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.)
Ceased
Application number
PCT/EP2004/009240
Other languages
German (de)
English (en)
Inventor
Harald Schestag
Christoph Breuer
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 WO2005028131A1 publication Critical patent/WO2005028131A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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

Definitions

  • the invention relates to a high-pressure cleaning device with a housing which surrounds an electric motor pump unit which can be connected to an electrical voltage supply source by means of a connecting cable.
  • High-pressure cleaning devices of this type are known to the person skilled in the art in a variety of configurations.
  • a cleaning liquid preferably water
  • the high-pressure cleaning device comprises an electric motor which drives a high-pressure pump.
  • the electric motor and high-pressure pump are designed as a structural unit in the form of the motor pump unit, which can be connected to an electrical voltage supply source by means of an electrical connection cable.
  • the motor pump unit is arranged in the housing in a manner protected against splashing water, and the connecting cable is usually led through an opening in the housing, although care must be taken to ensure that the desired splash water protection also exists in the area of the opening.
  • rubber-elastic sealing elements are usually used, which ring-shaped surround the connecting cable in the area of the opening and seal the opening. This is associated with a not inconsiderable manufacturing and assembly effort.
  • the object of the present invention is to develop a high-pressure cleaning device of the type mentioned at the outset in such a way that it can be manufactured and assembled more cost-effectively.
  • This object is achieved according to the invention in a high-pressure cleaning device of the generic type in that the housing has a through opening for the passage of the connecting cable, the through opening being covered by a cover held on the housing.
  • splash water protection can also be achieved in the area of the through opening in a cost-effective manner, without having to use sealing elements which surround the connecting cable in a ring in the area of the through opening. Rather, direct access of spray water to the through opening from the outside can be avoided by means of the cover by covering the through opening.
  • the connecting cable usually carries at its free end an electrical connecting element, for example a connector. It is particularly advantageous here if the connection element can be passed through the opening. This can further simplify the assembly of the high-pressure cleaning device, since a fully functional motor pump unit, to which an electrical connection cable with an electrical connection element is already connected, can be inserted into the housing, both the electrical connection element and the connection cable being passed through the through opening can be. The through opening can then be covered by the cover to ensure the necessary splash protection.
  • the preassembled motor pump unit including the connecting cable with the connecting element arranged at the free end can therefore be tested before installation and, if successful, it can be inserted unchanged into the housing. It is advantageous if the through opening is arranged on a rear wall of the housing.
  • the cover in combination with a housing wall having the through opening, forms a flow labyrinth for cooling air flowing into the housing.
  • the cover covers ventilation openings of the housing and comprises a cooling air access offset to the ventilation openings.
  • the through opening of the housing also serves as a ventilation opening through which cooling air can flow.
  • the cooling air opening of the cover is arranged offset to the through opening, so that on the one hand the required splash protection is ensured and on the other hand an adequate supply of cooling air for the motor pump unit can be ensured.
  • the cover comprises a cover plate which is arranged at a distance from the housing and covers the through opening. This enables the connection cable to be routed on the outside in an area adjoining the through opening between a wall of the housing and the cover plate. It is advantageous if the arrival end cable is led down from the area of the housing covered by the cover plate.
  • the cover forms a holder for the connecting cable.
  • the cover has at least one support hook for receiving the connection cable, so that the connection cable can be hung on the support hook in the wound state.
  • the cover has at least two support hooks around which the connecting cable can be wound. It is advantageous if the support hooks point in the opposite direction. It can be provided, for example, that the cover has an upper and a lower support hook, which are L-shaped and each comprise a first leg, which is oriented essentially perpendicular to the cover plate, and a second leg, the second leg of the point both support hooks in the opposite direction.
  • the cover is preferably designed as a one-piece plastic part.
  • the high-pressure cleaning device has a detergent tank for storing a detergent that can be added to the pressurized cleaning liquid. It is advantageous if the high-pressure cleaning device comprises a detergent dosing valve with which the user can dose the amount of detergent added. It is advantageous if the cover has a holding device for the detergent metering valve. The cover then not only takes on the function in the area of the passage opening of the to ensure splash water protection, but it also serves to hold the detergent dosing valve. As a result, the manufacturing and assembly costs of the high-pressure cleaning device can be reduced further.
  • the detergent added to the cleaning liquid can be filtered using a detergent filter.
  • a detergent filter This can reduce contamination, in particular of the high-pressure pump, and consequently the service life of the high-pressure cleaning device can be considerably improved.
  • the cover comprises a holding element for the cleaning agent filter. This enables a further reduction in the manufacturing and assembly costs of the high-pressure cleaning device and also has the advantage that the cleaning agent filter is easily accessible for a user, so that he can replace the cleaning agent filter with a few simple steps if necessary.
  • a cleaning agent line is connected to the cleaning agent filter and is led through the through opening.
  • the through opening thus not only allows a passage for the electrical connection cable, but also serves to pass the cleaning agent line at the same time. This enables a further design simplification of the construction of the high-pressure cleaning device.
  • Figure 1 is a schematic rear view of a high-pressure cleaning device according to the invention.
  • Figure 2 is a schematic side view of the high pressure cleaning device
  • Figure 3 is a sectional view taken along line 3-3 in Figure 1;
  • Figure 4 is a schematic rear view of a cover of the high pressure cleaning device
  • Figure 5 is a schematic bottom view of the cover of Figure 4.
  • FIG. 6 a diagrammatic representation of the cover from FIG. 4.
  • a high-pressure cleaning device designated overall by reference number 10, is shown.
  • This has a two-part housing 12 with a housing trough 14 and a housing cover 16 which can be placed on the housing trough 14.
  • the housing trough 14 comprises a rear wall 18, to which a top wall 20 and a bottom wall 22 connect on the underside, while the rear wall 18 has a first side and second side walls 24 and 26 are formed.
  • the housing 12 accommodates a prefabricated, fully functional motor pump unit 30 with an electric motor 32 and a high pressure pump 34, which are known per se and are therefore only shown schematically in the drawing.
  • An electrical connection cable 36 is connected to the electric motor 32 in the usual manner and therefore not shown in the drawing, which has an electrical connection element in the form of a connection Plug 38 carries.
  • Such connectors 38 are known to those skilled in the art. To obtain a better overview, the connector 38 is therefore not shown in Figures 1 and 2.
  • the connecting cable 36 is passed through a through opening 42 of the housing 12, which is arranged in the region of the rear wall 18. It is completely covered by a cover 46 detachably held on the rear wall 18.
  • the cover comprises a cover plate 48, from the top of which, at the level of the top wall 20, an upper support hook 50 and on the underside, on the underside of the cover plate 48 facing away from the upper support hook 50 protrude lower support hook 52.
  • the support hooks 50 and 52 are L-shaped and each comprise a first leg 54 and 56, which is oriented substantially perpendicular to the cover plate 48 and protrudes rearward from the cover plate 48, and a second leg 58 and 60, which in the directions facing away from each other are oriented upwards or downwards.
  • the connecting cable 36 can be wound around the two support hooks 50 and 52.
  • a collar 64 which completely surrounds the cover plate 48 in the circumferential direction and faces the housing 12, projects from the cover plate 48 and has a semicircular recess 66 only in the region of the underside facing the bottom wall 20.
  • two spaced-apart retaining tabs 68, 70 are formed on the collar 64, which are L-shaped, and laterally, the cover plate 48 carries two latching hooks 72, 74 at the level of the upper supporting hook 50.
  • the retaining tabs can be used to mount the cover 46 68 and 70 in each case in the area of the rear wall 18 of the housing 12 arranged mounting opening 76 are used, and then the locking hooks 73 and 74 can be snapped into corresponding locking receptacles of the housing 12.
  • the cover 46 is then supported by the circumferential collar 64 on the rear wall 18 of the housing 12, the cover plate 48 being positioned approximately parallel to the rear wall 18 at a distance from it.
  • the cover plate 48 carries an elastically deformable holding arm 80, into which a cleaning agent filter 82 can be inserted, which is held by the cover 46 by means of the holding arm 80. This is particularly clear from Figure 1.
  • the cover plate 48 has a cooling air opening 86 which is arranged laterally offset with respect to the through opening 42 of the rear wall 18 and is of circular design and is guided through the first and second cleaning agent lines 88, 90.
  • the cover plate 48 has an upper opening 94 and a lower opening 96.
  • the upper opening 94 is surrounded by an annular collar 98 facing the rear wall 18, the free end face of which rests against the rear wall 18 of the housing 12.
  • the upper opening 94 receives a rotary knob 100, with the aid of which a push bar 102, which can be adjusted in height on the housing 12, can be locked in a desired height position.
  • the lower opening 96 is surrounded by a support collar 104 which is oriented rearward in the direction facing away from the rear wall 18 and which carries a detergent metering valve 106 with the aid of which the user can there would be dosing of cleaning agent to the cleaning fluid delivered by the high pressure pump 34.
  • the motor pump unit 30 To assemble the motor pump unit 30, it can be inserted into the housing trough 14 with the housing cover 16 removed, the electrical connection cable 36 including the connector plug 38 being able to be led out through the through opening 42.
  • the diameter of the through opening 42 is chosen to be larger than the diameter of the connector 38. This makes it possible to test the motor pump unit 30 before it is installed, the motor pump unit 30 being connected to an electrical voltage supply source by means of the connecting cable 36 and the connector 38 can. The fully functional and checked motor pump unit 30 can then be inserted into the housing trough 14.
  • the cover 46 can then be latched to the rear wall 18.
  • the cover 46 completely covers the through opening 42 of the rear wall 18, and the cooling air opening 86, in combination with the through opening 42, forms a flow labyrinth through which cooling air for cooling the motor pump unit 30 can flow into the housing 12.
  • the cooling air can be guided along the motor pump unit 30 within the housing 12 and absorb waste heat, and the heated cooling air can then leave the housing 12 via air outlet openings 110 arranged in the region of the housing cover 16.
  • the cooling air opening 86 enables the first and second cleaning agent lines 88 and 90, which are in flow connection with the high-pressure pump 34 in the usual and therefore not shown in the drawing, lead to the outside to the cleaning agent filter 82 or to the cleaning agent metering valve 106, which are each held on the outside on the cover 46.
  • the cover 46 is integrally formed as a molded plastic part and not only provides splash protection and a flow labyrinth, but also forms a holder for the electrical connection cable 36, which can be wound around the two support hooks 50 and 52.

Landscapes

  • Cleaning By Liquid Or Steam (AREA)
  • Motor Or Generator Frames (AREA)

Abstract

L'invention concerne un appareil de nettoyage à haute pression comportant un carter (12) qui enveloppe une unité motopompe électrique (30), laquelle est raccordée à une source d'alimentation électrique par un câble de raccordement (36). L'invention vise à perfectionner cet appareil de nettoyage à haute pression de manière à ce que son montage soit moins coûteux. A cet effet, le carter est doté d'une ouverture de passage (42) pour le câble de raccordement, cette ouverture de passage étant fermée par un couvercle (46) fixé au carter.
PCT/EP2004/009240 2003-08-29 2004-08-18 Appareil de nettoyage a haute pression Ceased WO2005028131A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2003140744 DE10340744B4 (de) 2003-08-29 2003-08-29 Hochdruckreinigungsgerät

Publications (1)

Publication Number Publication Date
WO2005028131A1 true WO2005028131A1 (fr) 2005-03-31

Family

ID=34202359

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2004/009240 Ceased WO2005028131A1 (fr) 2003-08-29 2004-08-18 Appareil de nettoyage a haute pression

Country Status (2)

Country Link
DE (1) DE10340744B4 (fr)
WO (1) WO2005028131A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11890651B2 (en) 2019-10-24 2024-02-06 Andreas Stihl Ag & Co. Kg Venting device with splash guard and power tool with such a venting device

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070207043A1 (en) * 2006-03-03 2007-09-06 Eastway Fair Company Limited Of Trident Chambers Enclosed vertically mounted engine
CN101947522A (zh) * 2010-09-27 2011-01-19 常州格力博工具技术研发有限公司 压力清洗设备
DE102012101357A1 (de) * 2012-02-20 2013-08-22 Alfred Kärcher Gmbh & Co. Kg Hochdruckreinigungsgerät
WO2013123968A1 (fr) * 2012-02-20 2013-08-29 Alfred Kärcher Gmbh & Co. Kg Nettoyeur haute pression
DE202014000717U1 (de) * 2014-01-25 2015-04-28 Nilfisk Advance A/S Reinigungsgerät mit Anschlussarmatur
DE102018102012A1 (de) * 2018-01-30 2019-08-01 Alfred Kärcher SE & Co. KG Hochdruckreinigungsgerät
DE102023104171A1 (de) * 2023-02-20 2024-08-22 Alfred Kärcher SE & Co. KG Luftgekühltes hochdruckreinigungsgerät

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8801028U1 (de) * 1987-11-13 1988-03-10 Westergaard, Knud Erik, Hadsund Hochdruckreinigungsgerät
US5338162A (en) * 1991-12-07 1994-08-16 K.E.W. Industri A/S High-pressure cleaner with air-cooled motor
WO1997023308A1 (fr) * 1995-12-22 1997-07-03 Alfred Kärcher GmbH & Co. Appareil de nettoyage sous haute pression

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK595687D0 (da) * 1987-11-13 1987-11-13 Westergaard Knud Erik Hoejtryksrenser

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8801028U1 (de) * 1987-11-13 1988-03-10 Westergaard, Knud Erik, Hadsund Hochdruckreinigungsgerät
US5338162A (en) * 1991-12-07 1994-08-16 K.E.W. Industri A/S High-pressure cleaner with air-cooled motor
WO1997023308A1 (fr) * 1995-12-22 1997-07-03 Alfred Kärcher GmbH & Co. Appareil de nettoyage sous haute pression

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11890651B2 (en) 2019-10-24 2024-02-06 Andreas Stihl Ag & Co. Kg Venting device with splash guard and power tool with such a venting device

Also Published As

Publication number Publication date
DE10340744A1 (de) 2005-03-24
DE10340744B4 (de) 2012-03-29

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