EP2866953B1 - Hochdruckreinigungsgerät - Google Patents

Hochdruckreinigungsgerät Download PDF

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Publication number
EP2866953B1
EP2866953B1 EP12730971.4A EP12730971A EP2866953B1 EP 2866953 B1 EP2866953 B1 EP 2866953B1 EP 12730971 A EP12730971 A EP 12730971A EP 2866953 B1 EP2866953 B1 EP 2866953B1
Authority
EP
European Patent Office
Prior art keywords
pressure cleaning
pump
cleaning appliance
connection
accordance
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
EP12730971.4A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2866953A1 (de
Inventor
Peter Pfaff
Werner Schwab
Markus Fischer
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
Priority to HUE12730971A priority Critical patent/HUE037283T2/hu
Publication of EP2866953A1 publication Critical patent/EP2866953A1/de
Application granted granted Critical
Publication of EP2866953B1 publication Critical patent/EP2866953B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
    • B08B3/02—Cleaning by the force of jets or sprays
    • B08B3/026—Cleaning by making use of hand-held spray guns; Fluid preparations therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
    • F04B17/06—Mobile combinations
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/16—Casings; Cylinders; Cylinder liners or heads; Fluid connections
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/22—Arrangements for enabling ready assembly or disassembly
    • 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
    • B08B2203/0247—Hose joints, e.g. quick joints, rotating joints
    • 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
    • B08B2203/027—Pump details

Definitions

  • the invention relates to a high-pressure cleaning device having the features of the preamble of claim 1.
  • a cleaning liquid preferably water
  • a liquid supply line can be connected to the inlet of the pump via a first connection part.
  • the first connection part has a first connection element at a free end.
  • the pressurized cleaning liquid can be supplied via a second connection part of a liquid discharge line.
  • the second connection part carries at its free end a second connecting element.
  • a high-pressure cleaning device with the features of the preamble of claim 1 is made DE 44 45 520 C1 known. Described in this document is a high-pressure cleaner with a pump having a pump head and a pump drive.
  • the pump head can be placed on the pump drive. Inside the pump head there are pump chambers, and by means of the pump drive, pistons can be moved back and forth in the pump chambers.
  • the pump head is in one piece connected to a suction line through which a liquid can be sucked from a supply.
  • the suction line forms a first connection part, which carries at its free end a first connecting element in the form of an external thread for detachable connection to a liquid supply line.
  • the pump head is integrally connected to a connecting piece, which adjoins an extended portion of a pressure line.
  • the connecting piece forms a second connecting part, which carries at its free end a second connecting element in the form of an external thread for releasable connection to a liquid discharge line.
  • the suction line and the connecting piece are aligned obliquely to one another and have a greater distance from one another in the region of the external thread than in their end regions facing away from the external thread.
  • the suction line is connected at its end facing away from the external thread rigidly connected to the pump inlet and the connecting piece is connected with its end facing away from the external thread rigidly connected to the pump outlet.
  • US 2009/223541 A1 discloses a high-pressure cleaner in which an inlet duct in the form of an inlet hose is oriented obliquely to an outlet duct.
  • the inlet duct is connected at its free end to an inlet port, and the outlet duct is connected at its free end to an outlet port.
  • the inlet port is aligned parallel to the outlet port.
  • WO 2008/036260 A2 describes a high-pressure cleaner in which an internal combustion engine drives a pump.
  • the pump has a pump inlet to which a garden hose or the like can be connected.
  • the pump has a pump outlet connected to the inlet of a heat exchanger.
  • the heat exchanger has an outlet to which a high pressure hose can be connected.
  • the pump inlet is aligned at an angle to the outlet of the heat exchanger.
  • WO 2011/012151 A1 describes a heated high-pressure cleaning device with a first and a second connection element.
  • a liquid supply line can be connected to the first connection element and a high-pressure line can be connected to the second connection element.
  • the connection elements are aligned parallel to each other and each extend at an angle of about 60 ° to a footprint.
  • WO 2012/079623 A1 discloses a high pressure cleaning apparatus having a first port to which a supply hose can be connected and a second port to which a high pressure hose can be connected. The two connections are aligned parallel to each other.
  • WO 2010/054701 A1 describes a high-pressure cleaner with a suction nozzle to which a suction line can be connected, and with a discharge nozzle to which a pressure line can be connected. The suction nozzle is aligned parallel to the discharge nozzle.
  • the object of the invention is to develop a high-pressure cleaning device of the generic type such that the pump may have a compact design, without affecting the accessibility of the connecting elements is impaired. This object is achieved by a high-pressure cleaner with the features of claim 1.
  • the connecting elements can have a considerable distance from one another, so that they are easily accessible to the user, whereas the end sections of the connecting sections facing away from the connecting elements can have a considerably smaller distance from one another. This makes it possible to arrange the inlet of the pump at a small distance from the outlet of the pump, so that the pump can have a compact design.
  • the two connecting parts are rigidly connected to one another in the region of their obliquely aligned connecting sections via at least one cross member.
  • connection sections are rigidly connected to each other via two plate-like traverses.
  • connection sections but also the connecting elements arranged at the free ends of the connection sections are oriented obliquely relative to one another. Thereby, the connection of the liquid supply line and the liquid discharge line can be further simplified.
  • the high-pressure cleaner is placed on a footprint, for example on a floor surface.
  • a liquid supply line is usually a low-pressure hose used and the liquid discharge line is usually configured in the form of a high-pressure hose.
  • the oblique orientation of the connecting elements relative to one another also has the advantage that the bending load of the hoses connected to the connecting elements can be kept low even in a position of use of the high-pressure cleaning device, in which the connecting elements of a footprint of the high-pressure cleaning device, such as a bottom surface, facing away and upwards protrude.
  • the hoses usually run along the footprint until they reach the high pressure cleaner.
  • the hoses are bent so far that they reach the connecting elements.
  • the oblique orientation of the connecting elements makes it possible to reduce the bending load on the hoses.
  • the obliquely aligned connecting sections and connecting elements are aligned mirror-symmetrically to a vertical center plane of the high-pressure cleaning device.
  • the terminal portions and the connecting elements are arranged on both sides of the median plane of the high-pressure cleaning device and have the same angle of inclination to the median plane.
  • the high-pressure cleaning device comprises in an advantageous embodiment, two housing halves, which are joined together in the vertical center plane.
  • the median plane thus forms the parting plane of the two housing half-shells.
  • the two housing half-shells form an upper housing part which rests on a lower housing part, wherein the lower housing part has openings through which the connecting elements protrude.
  • the fasteners are thus accessible to the user in a simple manner and the two housing halves and the lower housing part facilitate the installation of the high-pressure cleaner.
  • the obliquely aligned terminal portions are conveniently designed tubular. This gives the two connection sections a high mechanical stability.
  • the first connection part and / or the second connection part is L-shaped and has a first connection leg and a second connection leg, wherein the first connection leg is connected to the pump and wherein the second connection leg forms a connection section, which carries at its free end a connecting element.
  • first connection leg of the first connection part and / or of the second connection part is aligned parallel to a longitudinal axis of the pump.
  • This provides, for example, the possibility of arranging the outlet of the pump on an end face of the pump aligned perpendicular to the longitudinal axis of the pump and liquid from the outlet via the first connecting limb aligned parallel to the longitudinal axis of the pump and perpendicular to the first connecting leg and thus also perpendicular to the longitudinal axis of the pump aligned second connecting leg of a liquid discharge line, in particular a high-pressure hose to supply, which is connected to the arranged at the free end of the second connecting leg connecting element.
  • the first connecting leg of at least one connecting part is preferably connected rigidly to the second connecting leg of the same connecting part via a web. This increases the mechanical stability of the connection part.
  • the web may be formed straight or have a curved course.
  • connection parts are detachably connectable to the pump.
  • connection parts can be screwed to the pump.
  • the two connecting parts are fixed to a retaining plate, which is detachably connectable to the pump.
  • a plurality of connecting elements in particular a plurality of connecting screws, are used.
  • connection part and / or the second connection part suitably passes through the holding plate, because this gives the connection part a particularly high mechanical stability.
  • the first connection part and / or the second connection part has, in an advantageous embodiment, a connection nipple which protrudes from the holding plate.
  • the connection nipple makes it easy to connect the connection part to the pump.
  • connection nipple is arranged on the holding plate, which is connected to the pump.
  • the retaining plate on opposite sides of the connecting nipple bores, which are penetrated by connecting screws.
  • the connecting screws make it possible to screw the retaining plate to the pump on both sides of the connecting nipple.
  • both the first connection part and the second connection part have a connection nipple for establishing a connection with the pump.
  • the two nipples are aligned parallel to each other. This simplifies the assembly of the connection parts to the pump.
  • connection parts are offset from each other in the longitudinal direction of the pump.
  • a high-pressure cleaning device 10 is shown schematically with a housing 12 having a housing top 14 and a housing base 16 and the one in FIG. 3 shown motor pump unit 18 surrounds.
  • the upper housing part 14 has a first housing half shell 20 and a second housing half shell 22, which together surround the motor pump unit 18 in the circumferential direction and which are joined in a vertical parting plane 24, which forms a median plane of the high-pressure cleaning device 10.
  • the two housing half shells 20, 22 form a disposed in the parting plane 24 carrying handle 26 and a subsequent to the handle 26 recess 28, in which a main switch 30 is arranged for switching on and off of the high-pressure cleaner 10.
  • the motor pump unit 18 comprises an electric motor 32 and a pump 34 as well as a connection device 36, which is arranged on the end face of the pump 34 facing away from the electric motor 32.
  • the motor pump unit 18 is held on the two housing half-shells 20, 22.
  • the motor pump unit 18 has a total of four radially outwardly projecting support arms 38, which are arranged distributed uniformly over the circumference of the motor pump unit 18.
  • the support arms 38 and not shown in the drawing elastic damping elements, which are arranged on the inside of the housing half-shells 20, 22, the motor pump unit 18 is vibration-damping on the housing half-shells 20, 22 stored.
  • the lower housing part 16 has a trough-like receptacle into which the motor pump unit 18 protrudes with its end region projecting out of the upper housing part 14, in particular with the connecting device 36.
  • the connection device 36 has a first connection element 40, to which a liquid supply line, for example a low-pressure hose, can be connected.
  • the connection device 36 has a second connecting element 42, to which a liquid discharge line, for example a high-pressure hose, can be connected.
  • the two connecting elements 40, 42 pass through an opening 44 and 46 of the housing base 16.
  • the two connecting elements 40, 42 each carry an external thread.
  • a coupling part 48 which facilitates the connection of a low-pressure hose.
  • two wheels 50, 52 are rotatably mounted about a common axis of rotation.
  • the lower housing part 16 forms together with the wheels 50, 52 a chassis of the high-pressure cleaning device 10, which receives the weight of the motor pump unit 18 and the two housing half-shells 20, 22.
  • a U-shaped push bracket 54 is slidably held between an inserted position and an extended position.
  • the push bar 54 is shown only in its retracted position.
  • the high-pressure cleaning device 10 can be operated in two different operating positions, namely in an upright position, as in FIG. 1 is shown, and in a lying position, as in FIG. 2 is shown.
  • the connection device 36 has a first L-shaped connection part 56 and a second L-shaped connection part 58.
  • the two connecting parts 56, 58 each include a first connecting leg 60 or 62, which is aligned parallel to a longitudinal axis 64 of the pump 34, and a perpendicular to the first connecting leg 60 and 62 aligned second connecting leg 66 and 68.
  • the second connecting leg 66th , 68 are aligned obliquely to each other and each form a connection portion 70 and 72, which carries at its free end, the first connecting element 40 and the second connecting element 42.
  • connection sections 70, 72 are at a greater distance from one another than in their end regions facing away from the connection elements 40, 42, to each of which a first connection leg 60, 62 adjoins.
  • the first connecting legs 60, 62 thus have a relatively small distance from each other, whereas the connecting elements 40, 42 are arranged at a considerable distance from each other.
  • the connecting elements 40, 42 are therefore accessible to the user in a simple manner. This facilitates the connection of a liquid supply line and a liquid discharge line to the connecting elements 40, 42.
  • the first connection leg 60 carries at its free end a first connection nipple 74, which can be inserted into an inlet 76 of the pump 34.
  • the second connecting leg 62 carries at its free end a second connecting nipple 78, which can be inserted into an outlet 80 of the pump 34.
  • the two connection nipples 74, 78 are aligned parallel to the longitudinal axis 64, wherein they are arranged offset to one another in the longitudinal direction of the pump. This is especially true FIG. 5 clear.
  • the first connecting leg 60 is rigidly connected to the second connecting leg 66 via an arcuate web 82.
  • the crossbar 84 is formed by a first connecting plate 86 and a second connecting plate 88 oriented parallel thereto, which are rigidly connected to one another via a connecting rib 90.
  • connection device 36 has a holding plate 92, on which the first connection part 56 and the second connection part 58 are fixed.
  • the second connecting leg 68 of the second connecting part 58 passes through the retaining plate 92, so that the second connecting nipple 78 projects from the retaining plate 92. This is going out FIG. 5 clear.
  • the holding plate 92 On opposite sides of the second connection nipple 78, the holding plate 92 has two through holes 94, 96 which are each penetrated by a connecting screw 98.
  • the pump 34 has on opposite sides of the outlet 80 each have a blind bore 100, 102 with an internal thread, so that the connecting screws 98 pass through the retaining plate 92 and can be screwed into the blind holes 100, 102 for producing a detachable connection between the connecting device 36th and the pump 34.
  • cleaning liquid to be placed under pressure for example water
  • a liquid supply line for example a low-pressure hose
  • a liquid discharge line for example a high-pressure hose
  • connection sections 70, 72 are arranged mirror-symmetrically to the parting plane 24 of the high-pressure cleaning device 10. Takes the high-pressure cleaner 10 his in FIG. 2 shown lying position, so are the terminal portions 70, 72 as well as the connecting elements 40, 42 aligned obliquely to the vertical.
  • This has the advantage that the hoses connected to the connecting elements 40, 42 are subject to a relatively low bending load. Due to the relatively large distance between the two connecting elements 40, 42 to each other, the hoses can be easily connected by the user to the connecting elements 40, 42.
  • the distance that the inlet 76 occupies to the outlet 80 of the pump 34 can be chosen relatively small. This gives the possibility to make the pump 34 very compact.
  • the accessibility of the connecting elements 40, 42 is not affected by the compact design.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cleaning By Liquid Or Steam (AREA)
  • Details Of Reciprocating Pumps (AREA)
EP12730971.4A 2012-06-29 2012-06-29 Hochdruckreinigungsgerät Active EP2866953B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
HUE12730971A HUE037283T2 (hu) 2012-06-29 2012-06-29 Nagynyomású tisztítókészülék

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2012/062767 WO2014000823A1 (de) 2012-06-29 2012-06-29 Hochdruckreinigungsgerät

Publications (2)

Publication Number Publication Date
EP2866953A1 EP2866953A1 (de) 2015-05-06
EP2866953B1 true EP2866953B1 (de) 2017-10-04

Family

ID=46420200

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12730971.4A Active EP2866953B1 (de) 2012-06-29 2012-06-29 Hochdruckreinigungsgerät

Country Status (5)

Country Link
EP (1) EP2866953B1 (zh)
CN (1) CN104364023B (zh)
BR (1) BR112014031516B1 (zh)
HU (1) HUE037283T2 (zh)
WO (1) WO2014000823A1 (zh)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102022107617A1 (de) 2022-03-30 2023-10-05 Alfred Kärcher SE & Co. KG Hochdruckreinigungsgerät

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4445520C1 (de) * 1994-12-20 1996-07-04 Kaercher Gmbh & Co Alfred Kolbenpumpe für ein Hochdruckreinigungsgerät
CA2663643A1 (en) * 2006-09-18 2008-03-27 Faip North America, Inc. Pressure washer with heat transfer unit for hot water discharge
WO2009132316A1 (en) * 2008-04-24 2009-10-29 Homelite Technologies Ltd. Surface cleaner system
EP2346621B1 (de) * 2008-11-14 2013-05-01 Alfred Kärcher GmbH & Co. KG Hochdruckreinigungsgerät
DE102009010461A1 (de) * 2009-02-13 2010-08-19 Alfred Kärcher Gmbh & Co. Kg Motorpumpeneinheit
CN102470400B (zh) * 2009-07-27 2015-07-08 阿尔弗雷德·凯驰两合公司 高压清洁设备
AU2010365739B2 (en) * 2010-12-14 2015-12-24 Alfred Kaercher Gmbh & Co. Kg Motor pump unit for a high-pressure cleaning device, and high-pressure cleaning device
CN202015702U (zh) * 2010-12-23 2011-10-26 青岛尚芳环境科技有限公司 清洗泡沫一体机

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
CN104364023A (zh) 2015-02-18
BR112014031516A2 (pt) 2017-06-27
WO2014000823A1 (de) 2014-01-03
HUE037283T2 (hu) 2018-08-28
CN104364023B (zh) 2016-04-20
BR112014031516B1 (pt) 2020-09-15
EP2866953A1 (de) 2015-05-06

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