EP2744606A1 - Hochdruckreinigungsgerät - Google Patents
HochdruckreinigungsgerätInfo
- Publication number
- EP2744606A1 EP2744606A1 EP11748922.9A EP11748922A EP2744606A1 EP 2744606 A1 EP2744606 A1 EP 2744606A1 EP 11748922 A EP11748922 A EP 11748922A EP 2744606 A1 EP2744606 A1 EP 2744606A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cleaning device
- liquid
- pressure cleaning
- wall
- thermally insulating
- 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.)
- Granted
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
Definitions
- the invention relates to a high-pressure cleaning device comprising an electrically heatable liquid storage with an inlet opening and with thermally insulating walls and a pump with a suction inlet, which is connected to the liquid storage, and with a pressure outlet for discharging pressurized liquid.
- the liquid reservoir has an overflow opening which is closable by a thermally insulating closure member, wherein the closure member is movably supported on the overflow opening and automatically from a liquid-filled liquid from the overflow opening from a closed position is movable in an open position.
- the closing member may be designed, for example, in the manner of a flap which closes the overflow opening during normal operation of the high-pressure cleaning device by assuming its closed position, and which is moved in the event of malfunction of flowing out of the overflow opening liquid in its open position. It is advantageous if the closing member covers the overflow opening in the closed position, because this makes it possible to keep thermal losses in the region of the overflow opening particularly low during normal operation of the high-pressure cleaning appliance.
- the closing member may cover an edge of the overflow opening on the outside at the closed position.
- the outer wall has a plurality of outer wall sections which can be connected to one another without tools.
- At least two outer wall sections can be connected to one another via a tongue and groove connection.
- the tongue and groove connection makes it possible to connect the outer wall sections without the use of a tool.
- the groove and spring connection ensures that even in the joining region between the two outer wall sections only very small thermal losses occur.
- the outer wall has two outer wall portions which receive the closing member between them. This makes it possible, when joining two outer wall sections, to position the closing element between the outer wall sections and to hold it on the two outer wall sections.
- closure member can be plugged in with the two outer wall sections.
- the closure member can be plugged in with the two outer wall sections.
- Closing member is pivotally supported about a pivot axis at the overflow opening, wherein it has on two opposite outer sides in alignment with the pivot axis aligned pivot pin, which are received by complementary designed pivot pin receptacles of the two outer wall sections.
- aligned on the two outer wall portions aligned with the pivot axis pivot pin are arranged, which dive into complementary designed pivot pin receptacles of the closing member.
- the two outer wall sections and the closing element are made of the same thermally insulating material, for example of an expanded polypropylene material. As a result, the manufacturing cost of the high-pressure cleaner can be kept low.
- the liquid storage has a thermally insulating lid, which is connected to the outer wall without tools.
- the cover covers the liquid reservoir from the top and can be connected to the thermally insulating outer wall of the liquid reservoir without the use of a tool. It can be provided, for example, that the lid can be latched to the outer wall.
- cooperating latching projections and latching receptacles can be arranged on the cover and on the outer wall.
- the outer wall and the cover are made of the same thermally insulating material, for example of an expanded polypropylene material.
- Figure 1 a perspective view of a high-pressure cleaning device according to the invention
- FIG. 2 shows a schematic representation of an electrically heatable liquid reservoir and a pump of the high-pressure cleaning device from FIG. 1;
- Figure 4 a schematic representation of an outer wall and a lid of the liquid storage of Figure 2 in the manner of an exploded view.
- a simplified high-pressure cleaner 10 is shown with a chassis 12, on the underside of two wheels 14, 15 and a steering roller 16 are rotatably mounted.
- a housing 17 is arranged with two handle bars 19, 20, which can be grasped by the user for moving the high-pressure cleaning device 10.
- a pump 22 is arranged on the chassis 12, and between the pump 22 and the housing 17, the chassis 12 carries a liquid storage 24.
- the pump 22 and the liquid reservoir 24 of a in the drawing covered to achieve a better overview hood not shown.
- the liquid reservoir 24 is shown schematically in FIG. It is designed in the manner of a boiler and has an interior 26 which can be filled via an inlet opening 28 with liquid, preferably with water.
- an inlet line 30 is connected, which leads to an inlet port 32 arranged on the housing 17, to which, for example, a water hose can be connected.
- the water hose can be connected in a known manner to a public drinking water supply network.
- an electric heater 50 is arranged, which can be supplied via an electrical supply line 51 with electrical energy.
- Float valve 54 arranged with a float 55 which, upon reaching a maximum level of liquid level 56, as shown in Figure 2, the float valve 54 closes and thereby ensures that during normal operation of the high-pressure cleaner 10, the maximum permissible level of liquid 56 can not be exceeded.
- the liquid reservoir 24 has an inner wall 57 made of sheet steel, which is surrounded by an outer wall 59.
- the outer wall 59 is made of a thermally insulating material, for example of an expanded polypropylene material, and comprises a bottom wall portion 61 and a first side wall portion 62 and a second side wall portion 63.
- the two side wall portions 62, 63 are configured in a half-shell shape and surround the inner wall 57 respectively over a partial area of its outer circumference. This becomes clear in particular from FIG.
- a lid 64 is placed, which is latched to the side wall portions 62, 63.
- the inner wall 57 has, based on the liquid level of the liquid reservoir 24 below the inlet opening 28 to an overflow opening 66, which is closed during normal operation of the high-pressure cleaning device 10 by a closing member in the form of a closing flap 68.
- a closing member in the form of a closing flap 68.
- the closure flap 68 is made of the same thermally insulating material as the bottom wall portion 61, the two side wall portions 62, 63 and the lid 64.
- an expanded polypropylene material is used to make the closure flap 68.
- the closing flap 68 is pivotally mounted on the outer wall 59 about a pivot axis 70 and is in the closed position on a peripheral edge 71 of the overflow opening 66, so that it covers the overflow opening 66 on the outside.
- the closing flap 68 aligned with the pivot axis 70 aligned pivot pin 75, 76, which in each case one in the first side wall portion 62 and the second side wall portion 63 molded pivot pin receptacle 78 is assigned.
- the half-shell-shaped side wall sections 62, 63 can be connected to one another without tools.
- the two side wall portions 62, 63 attached to the outside of the inner wall 57 and connected via the longitudinal groove 83 and the longitudinal rib 84 without tools.
- the bottom wall section 61 can also be connected without tools to the two side wall sections 62, 63.
- a tongue and groove connection can also be used.
- the lid 64 can be placed on the side wall sections 62, 63, so that the interior 26 of the liquid store 24 is surrounded on all sides by thermally insulating material.
- liquid to be heated can be filled into the interior 26.
- the liquid can be heated, and by means of the pump 22, the heated liquid can be pressurized. If the liquid level within the liquid reservoir 24 reaches a predetermined maximum permissible value, then the float 55 closes the float valve 54. This prevents an impermissible increase in the liquid level.
- the liquid reservoir 24 is characterized by a very effective thermal insulation and yet it is ensured that in the event of a malfunction, liquid can only flow out of the liquid reservoir 24 via the overflow opening 66 but not via the inlet opening 28.
Landscapes
- Cleaning By Liquid Or Steam (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
- Cookers (AREA)
Abstract
Description
Claims
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/EP2011/064253 WO2013023707A1 (de) | 2011-08-18 | 2011-08-18 | Hochdruckreinigungsgerät |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2744606A1 true EP2744606A1 (de) | 2014-06-25 |
| EP2744606B1 EP2744606B1 (de) | 2015-07-01 |
Family
ID=44512884
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP11748922.9A Active EP2744606B1 (de) | 2011-08-18 | 2011-08-18 | Hochdruckreinigungsgerät |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP2744606B1 (de) |
| DK (1) | DK2744606T3 (de) |
| WO (1) | WO2013023707A1 (de) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4089470A (en) * | 1976-11-09 | 1978-05-16 | Strahman Valves, Inc. | Plural fluids delivery system |
| DE8001909U1 (de) | 1980-01-25 | 1981-03-12 | Alfred Kärcher GmbH & Co, 7057 Winnenden | Hochdruckreinigungsgeraet mit elektrischer beheizung |
| DE3732173C1 (en) * | 1987-09-24 | 1989-03-02 | Kaercher Gmbh & Co Alfred | High-pressure cleaning device |
| DE8806789U1 (de) * | 1988-05-25 | 1988-07-07 | Alfred Kärcher GmbH & Co, 7057 Winnenden | Hochdruckreinigungsgerät |
-
2011
- 2011-08-18 WO PCT/EP2011/064253 patent/WO2013023707A1/de not_active Ceased
- 2011-08-18 EP EP11748922.9A patent/EP2744606B1/de active Active
- 2011-08-18 DK DK11748922.9T patent/DK2744606T3/da active
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2013023707A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2013023707A1 (de) | 2013-02-21 |
| DK2744606T3 (da) | 2015-09-07 |
| EP2744606B1 (de) | 2015-07-01 |
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