EP4608568A1 - Dispositif de nettoyage haute pression - Google Patents

Dispositif de nettoyage haute pression

Info

Publication number
EP4608568A1
EP4608568A1 EP23776875.9A EP23776875A EP4608568A1 EP 4608568 A1 EP4608568 A1 EP 4608568A1 EP 23776875 A EP23776875 A EP 23776875A EP 4608568 A1 EP4608568 A1 EP 4608568A1
Authority
EP
European Patent Office
Prior art keywords
cleaning device
pressure cleaning
fuel tank
pump unit
frame section
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.)
Pending
Application number
EP23776875.9A
Other languages
German (de)
English (en)
Inventor
Stefan Kelle
Erich DECKERT
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 EP4608568A1 publication Critical patent/EP4608568A1/fr
Pending 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
    • 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
    • B08B2203/007—Heating the liquid
    • 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
    • B08B2203/0241—Combustion motor pumps

Definitions

  • Such high-pressure cleaning devices make it possible to pressurize water using a pump and to heat it using a heatable instantaneous water heater.
  • the heated and pressurized water can be directed at an object to be cleaned.
  • the instantaneous water heater is usually operated using a liquid fuel, such as heating oil or diesel fuel, and can have a coiled pipe that is heated by a burner and through which the water is passed.
  • the liquid fuel for operating the instantaneous water heater is stored in a fuel tank.
  • a control device is used to control the motor that drives the pump.
  • Such high-pressure cleaning devices have a support frame as the supporting structure. This gives the high-pressure cleaning devices a high level of mechanical stability, so that they can be operated reliably even under harsh environmental conditions, such as those found on construction sites.
  • a high-pressure cleaning device of the type mentioned above is known from WO 2020/052938 A1.
  • the fuel tank is designed as a one-piece hollow plastic body that forms an engine mounting part into which the engine can be inserted.
  • the object of the present invention is to further develop a high-pressure cleaning device of the type mentioned at the outset in such a way that it can be manufactured more cheaply while maintaining a high mechanical load capacity.
  • a high-pressure cleaning device of the generic type in that the fuel tank is arranged laterally next to the motor pump unit and the control device is positioned on a support element arranged above the motor pump unit at a distance from the latter, which can be detachably connected to the fuel tank and to a holding part of the support frame.
  • the fuel tank of the high-pressure cleaning device is designed as a component that is arranged laterally next to the motor pump unit. This simplifies the assembly of the motor pump unit and the fuel tank, whereby the fuel tank can have a relatively simple design.
  • the fuel tank is detachably connected to a holding part of the support frame via a support element. This ensures in a structurally simple manner that the fuel tank does not slip accidentally.
  • the support element also serves as a support for the control device, which is positioned on the support element.
  • the support element is arranged above the motor pump unit and at a distance from it. This allows the thermal load on the support element and the control device positioned on the support element to be reduced by the waste heat from the motor pump unit.
  • the high-pressure cleaning device according to the invention is therefore characterized overall by simple assembly and cost-effective manufacture, and it has a high mechanical load capacity. It is advantageous if the support element is designed in the form of a plate. The design of the support element in the form of a support plate gives the support element a particularly high mechanical load-bearing capacity and simplifies its assembly.
  • the support element consists of metal, in particular of a sheet metal part.
  • the support element has a first end section and a second end section opposite the first end section, wherein the first end section can be detachably connected to the fuel tank and the second end section can be detachably connected to the holding part.
  • the support part thus extends from the fuel tank arranged laterally next to the motor pump unit across the motor pump unit to the holding part of the support frame, wherein it is detachably connected to both the fuel tank and the support frame.
  • the support element can be screwed to the fuel tank and to the holding part.
  • the holding part is arranged behind the motor pump unit with respect to its main direction of movement and the fuel tank is positioned laterally next to the motor pump unit in front of the motor pump unit with respect to the main direction of movement.
  • the control device preferably has a control housing for accommodating at least one control element, for example a switching element.
  • the control housing has a lower housing part that can be detachably connected to the support element and an upper housing part that can be detachably connected to the lower housing part. It can be provided that the upper part of the housing can be screwed or locked to the lower part of the housing.
  • the support frame has a front frame section with respect to the main direction of movement of the high-pressure cleaning device, wherein the fuel tank is arranged between the front frame section and the motor pump unit.
  • a particularly simple assembly of the fuel tank is achieved in that the fuel tank can be inserted into the space between the front frame section of the support frame and the motor pump unit in an assembly direction oriented perpendicular to the main direction of movement.
  • the fuel tank can be inserted into the space between the front frame section of the support frame and the motor pump unit, forming a positive connection.
  • the fuel tank forms a positive connection with the front frame section on its front side facing the front frame section.
  • the fuel tank can be easily pulled out perpendicular to the main direction of movement from the space between the front frame section of the support frame and the motor pump unit after the detachable connection between the support element and the fuel tank has been released.
  • service measures can be carried out on the motor pump unit, for example an oil change.
  • the front frame section of the support frame forms a front impact protection for the high-pressure cleaning device. This reduces the risk of damage, particularly to the fuel tank, in the event of an unintentional impact with an obstacle.
  • the front frame section of the support frame is adjoined, opposite to the main direction of movement, by two longitudinal frame sections arranged at a distance from one another, each of which forms a longitudinal impact protection for the high-pressure cleaning device.
  • the support frame has a rear frame section that is U-shaped and has two vertically aligned legs in a horizontal position of use of the high-pressure cleaning device, each of which is rigidly connected to a longitudinal frame section, as well as a web that rigidly connects the two legs to one another, with the holding part extending between the two legs and being rigidly connected to them.
  • a rear frame section that is U-shaped and has two vertically aligned legs in a horizontal position of use of the high-pressure cleaning device, each of which is rigidly connected to a longitudinal frame section, as well as a web that rigidly connects the two legs to one another, with the holding part extending between the two legs and being rigidly connected to them.
  • the motor pump unit, the fuel tank and the control device are arranged between the front frame section and the rear frame section of the support frame in relation to a plan view of the high-pressure cleaning device. This enables a particularly compact design of the high-pressure cleaning device.
  • the instantaneous water heater is conveniently arranged behind the rear frame section of the support frame with respect to the main direction of movement of the high-pressure cleaning device.
  • a U-shaped handle bar is attached to the rear frame section of the support frame, opposite to the main direction of movement of the high-pressure cleaning device, which surrounds the instantaneous water heater and is rigidly connected to the rear frame section of the support frame. It is advantageous if the handle bar is detachably connected to the rear frame section.
  • the detachable connection can be achieved using connecting screws, for example.
  • the handle bar has two bar legs, each of which is connected to a leg of the rear frame section and whose end regions facing away from the rear frame section are rigidly connected to one another via a bar web.
  • the bar web can form a handle.
  • the high-pressure cleaning device has a hood that at least partially covers the motor pump unit and the control device and that can be detachably connected to the holding part and an end region of the support element facing away from the holding part.
  • the support element not only serves to secure the fuel tank and the control device but also to secure the hood that at least partially covers the motor pump unit and the control device. This allows particularly simple assembly of the high-pressure cleaning device according to the invention.
  • the hood has an opening through which the user can access a control panel with at least one control element of the control device.
  • Figure 1 a perspective view of a high-pressure cleaning device
  • Figure 2 a plan view of the high-pressure cleaning device from Figure 1;
  • Figure 3 a partial sectional view of the high pressure cleaning device of Figure 1 along the line 3-3 in Figure 2;
  • Figure 4 a perspective view of the high-pressure cleaning device from Figure 1, with its hood raised;
  • Figure 5 a perspective view of the high-pressure cleaning device from Figure 1, with its hood and its control device raised;
  • Figure 6 an enlarged view of detail X from Figure 5.
  • the drawing schematically shows an advantageous embodiment of a high-pressure cleaning device according to the invention, which is designated overall by the reference numeral 10.
  • the high-pressure cleaning device 10 is designed to be movable. For this purpose, it has two wheels 12, 14 and a steering roller 16, which are rotatably mounted on a chassis 18. A main direction of movement of the high-pressure cleaning device 10 is illustrated in Figures 1, 2 and 5 by the arrow 20.
  • the chassis 18 is formed by a base plate 22 which is screwed to a support frame 24.
  • the support frame 24 has a front frame section 26 in relation to the main direction of movement 20, which is U-shaped and protrudes upwards from the base plate 22.
  • the front frame section 26 is adjoined, in the opposite direction to the main direction of movement 20, by a first longitudinal frame section 28 and a second longitudinal frame section 30 arranged at a distance from the first longitudinal frame section 28, which are connected in one piece to the front frame section 26.
  • the two longitudinal frame sections 28, 30 are each adjoined by a connecting section 32 or 34 facing away from the front frame section 26, which is connected to the respective longitudinal frame section 28.
  • Frame section 28, 30 is connected in one piece and to which a leg 36 or 38 of a rear frame section 40 of the support frame 24 is connected in one piece, which is aligned vertically upwards in the horizontal position of use of the high-pressure cleaning device 10 shown in the drawing.
  • the two legs 36, 38 are connected in one piece to one another via a web 42 of the rear frame section 40 aligned transversely to the main direction of movement 20.
  • a U-shaped handle bar 44 is connected to the rear frame section 40, opposite to the main direction of movement 20, which is essentially horizontally aligned and has two bar legs 46, 48 and a bar web 50 aligned transversely to the main direction of movement 20, via which the two bar legs 46, 48 are connected to one another in one piece.
  • a bar connecting section 52 or 54 is connected to the ends of the bar legs 46, 48 facing away from the bar web 50.
  • the bar connecting sections 52, 54 are each screwed to a leg 36 or 38 of the rear frame section 40.
  • a console 56 is arranged on the base plate 22, which supports a motor pump unit 58.
  • the motor pump unit 58 has an electric motor 60, the longitudinal axis 62 of which is aligned transversely to the main direction of movement 20 and which drives a pump 64 and a blower 66.
  • the electric motor 60 is arranged between the pump 64 and the blower 66.
  • a fuel tank 68 is positioned to the side of the motor pump unit 58.
  • the fuel tank 68 serves to store a liquid fuel, for example heating oil or diesel fuel, with the help of which a continuous flow heater 70 arranged behind the rear frame section 40 in relation to the main direction of movement 20 can be operated.
  • Water can be pressurized by means of the pump 64, which can then be heated by means of the continuous flow heater 70, whereby the Combustion air can be supplied to the continuous flow heater 70 by means of the fan 66.
  • the continuous flow heater 70 can have a coiled tube in the usual way, which is heated by a burner and through which the water pressurized by the pump 64 is passed in order to heat the water. The heated water under pressure can then be directed in the usual way onto an object to be cleaned.
  • the fuel tank 68 can be inserted into the space between the motor pump unit 58 and the front frame section 26 in an assembly direction oriented perpendicular to the main direction of movement 20, which is illustrated in Figures 1, 2 and 5 by the arrow 72, and for servicing purposes the fuel tank 68 can also be removed from the space again if necessary.
  • the fuel tank 68 has on its top side 86 a third connecting tab 88 associated with the first connecting tab 82 of the support element 76, which can be screwed to the first connecting tab 82 by means of a detachable connecting screw 90.
  • the second connecting tab 84 of the support element 76 serves for the detachable connection to a hood 92 of the high-pressure cleaning device 10. This will be explained in more detail below.
  • the second end section 80 of the support element 76 rests on an upper side 94 of the holding part 74 and can be screwed to the holding part 74 by means of connecting screws 96, 98. This is particularly clear from Figure 6.
  • the plate-shaped support element 76 is arranged above the motor pump unit 58 and at a distance from it.
  • a control device 100 of the high-pressure cleaning device 10 is positioned on the support element 76.
  • the control device 100 has a control housing 102 with a housing lower part 104 and a housing upper part 106.
  • the housing upper part 106 is placed on the housing lower part 104 and locked to it.
  • a control element 108 is arranged in the control housing 102 for controlling the electric motor 60.
  • the control element 108 is connected to the electric motor 60 via a connecting cable (not shown in the drawing).
  • the housing lower part 104 of the control housing 102 is detachably connected to the support element 76 by means of several connecting screws, wherein a connecting screw designated by the reference numeral 110 can be seen in Figure 3.
  • the housing lower part 104 has a bottom wall 112, as can be seen from Figure 3.
  • the bottom wall 112 has a recess 114 which passes through an opening 116 in the support element 76 and forms a positive connection therewith.
  • the upper housing part 106 of the control housing 102 has a top wall 118 which forms a control panel 120 on which a control element 122 is arranged, which in the illustrated embodiment is designed as a switch button.
  • the user can switch the electric motor 60 on and off using the control element 122.
  • the control element 122 is used to select an operating mode of the electric motor 60.
  • the high-pressure cleaning device 10 has a hood 92.
  • the hood 92 can be placed on the control housing 102 and covers the electric motor 60 and, with the inclusion of the control panel 120, also the control housing 102.
  • the control panel 120 is accessible to the user via an opening 124 in the hood 92.
  • the hood 92 has an end wall 126 which can be screwed to the previously mentioned second connecting tab 84 of the first end section 78 of the support element 76.
  • the hood 92 forms a recess 128 which forms a receiving space for accessories of the high-pressure cleaning device 10.
  • a bottom wall 132 of the recess 128 can be detachably connected to the holding part 74 by means of connecting screws 134, 136. This is clear from Figures 2 and 3.
  • the high-pressure cleaning device 10 is characterized by a compact design and can be manufactured and assembled inexpensively.
  • the rigid, plate-shaped support element 76 allows the control device 100 to be positioned above the motor pump unit 58 and at a distance from it in a structurally simple manner and at the same time enables the fuel tank 78 to be easily secured transversely to the main direction of movement 20 and also the front wall 126 of the hood 92 to be secured.
  • the fuel tank 68 forms a positive connection with the front frame section 26, which supports the securing of the fuel tank 68 between the motor pump unit 58 and the front frame section 26.

Landscapes

  • Cleaning By Liquid Or Steam (AREA)

Abstract

La présente invention concerne un dispositif de nettoyage haute pression (10) comprenant un châssis (18) sur lequel des roues de roulement (12, 14) sont montées de manière rotative, et ayant une unité de pompe à moteur (58) et un dispositif de chauffage à écoulement alimenté en carburant (70) et ayant un réservoir de carburant (68) et un dispositif de commande (100) et un cadre de support (24). Afin de développer le dispositif de nettoyage haute pression (10) de telle sorte qu'il peut être produit de manière plus économique, l'invention propose que le réservoir de carburant (68) soit disposé latéralement à côté de l'unité de pompe à moteur (58) et que le dispositif de commande (100) soit positionné sur un élément de support (76) qui est disposé au-dessus et à une certaine distance de l'unité de pompe à moteur (58) et peut être relié de manière amovible au réservoir de carburant (68) et à une partie de maintien (74) du cadre de support (24).
EP23776875.9A 2022-10-26 2023-09-20 Dispositif de nettoyage haute pression Pending EP4608568A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102022128384.4A DE102022128384A1 (de) 2022-10-26 2022-10-26 Hochdruckreinigungsgerät
PCT/EP2023/075978 WO2024088659A1 (fr) 2022-10-26 2023-09-20 Dispositif de nettoyage haute pression

Publications (1)

Publication Number Publication Date
EP4608568A1 true EP4608568A1 (fr) 2025-09-03

Family

ID=88196985

Family Applications (1)

Application Number Title Priority Date Filing Date
EP23776875.9A Pending EP4608568A1 (fr) 2022-10-26 2023-09-20 Dispositif de nettoyage haute pression

Country Status (3)

Country Link
EP (1) EP4608568A1 (fr)
DE (1) DE102022128384A1 (fr)
WO (1) WO2024088659A1 (fr)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007018249A1 (de) * 2007-04-12 2008-10-16 Alfred Kärcher Gmbh & Co. Kg Fahrbares Hochdruckreinigungsgerät
KR20130116339A (ko) * 2011-03-07 2013-10-23 알프레드 캐르혀 게엠베하 운트 컴파니. 카게 가열가능한 고압 클리닝 장치
KR20140071953A (ko) * 2011-03-07 2014-06-12 알프레드 캐르혀 게엠베하 운트 컴파니. 카게 모바일 고압 클리닝 기기
WO2013123966A1 (fr) * 2012-02-20 2013-08-29 Alfred Kärcher Gmbh & Co. Kg Nettoyeur haute pression
EP3551351B1 (fr) * 2016-12-12 2021-02-03 Kärcher Futuretech GmbH Système de décontamination mobile
DE102018122145A1 (de) 2018-09-11 2020-03-12 Alfred Kärcher SE & Co. KG Beheizbares Hochdruckreinigungsgerät
US11638935B2 (en) * 2018-12-19 2023-05-02 Fna Group, Inc. Pressure washer system

Also Published As

Publication number Publication date
DE102022128384A1 (de) 2024-05-02
WO2024088659A1 (fr) 2024-05-02

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