DK9400467U3 - Pressure Washer - Google Patents
Pressure Washer Download PDFInfo
- Publication number
- DK9400467U3 DK9400467U3 DK9400467U DK9400467U DK9400467U3 DK 9400467 U3 DK9400467 U3 DK 9400467U3 DK 9400467 U DK9400467 U DK 9400467U DK 9400467 U DK9400467 U DK 9400467U DK 9400467 U3 DK9400467 U3 DK 9400467U3
- Authority
- DK
- Denmark
- Prior art keywords
- motor
- pump
- pressure cleaner
- high pressure
- pressure
- Prior art date
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
- B08B2203/02—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
-
- 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
-
- 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
- B08B2203/0282—Safety devices
Landscapes
- Cleaning By Liquid Or Steam (AREA)
- Cyclones (AREA)
Description
1DK 94 00467 U31DK 94 00467 U3
Den foreliggende frembringelse angår en højtryksrenser, dvs. et apparat, der tjener til at rengøre overflader ved hjælp af en trykvandstråle, i givet fald blandet med et rengøringsmiddel.The present invention relates to a high pressure cleaner, i.e. an apparatus which serves to clean surfaces by means of a pressurized jet of water, where appropriate mixed with a cleaning agent.
5 Som det er kendt for fagmanden indenfor dette område, har kendte højtryksrensere sædvanligvis en krop, der står på gulvet og sædvanligvis er forsynet med små hjul for at den let kan flyttes på gulvet. I denne krop er indeholdt en pumpe og en elektromotor for dens drift. 10 Sugesiden af pumpen er ved hjælp af en første slange forbundet, med en vandkilde, hvorimod tryksidenyer forbundet med en første ende af en anden .slange, som fører væk fra højtryksrenserens krop. Ved den anden ende af den anden slange er tilvejebragt et organ til 15 svingning og til styring af strålen (normalt i fonn af en pistol), som muliggør at den af pumpen frembragte vandstråle bringes i den ønskede retning og desuden på befaling at afbryde vandstrålen ved brugerens aktivering af en afspærringsventil, som udgør en del af nævnte 20 organ. Bort fra højtryksrenserens krop fører endvidere et elektrisk kabel til fødning af elektromotoren, som kan tilsluttes en tilsvarende elektrisk energikilde.As is known to those skilled in the art, prior art high pressure cleaners usually have a body that is on the floor and usually provided with small wheels for easy movement on the floor. This body contains a pump and an electric motor for its operation. The suction side of the pump is connected by a first hose to a water source, whereas pressure sides are connected to a first end of a second hose which leads away from the body of the high pressure cleaner. At the other end of the second hose is provided a means for pivoting and for controlling the jet (usually in the form of a gun), which allows the water jet produced by the pump to be brought in the desired direction and furthermore, on command, to disconnect the water jet by the user activating a shut-off valve which forms part of said means. Furthermore, away from the body of the high-pressure cleaner, an electrical cable leads to the supply of the electric motor, which can be connected to a corresponding electrical energy source.
Brugerne af den kendte højtryksrenser ved, at så snart højtryksrenseren er tilkoblet, er motoren og 25 følgelig pumpen til stadighed i drift også når vandstrålen afbrydes uden at man kobler høj tryksrenseren helt ud gennem betjening af den på dens krop anbragte omskifter. Dette gør brugeren imidlertid normalt ikke, når han forbigående må afbryde afgivelsen af spulestrå-3 0 len, men kun når han har afsluttet spulningen. Dette er muligt, fordi der ved de kendte højtryksrensere er tilvejebragt en bypass, der så snart afgivelsen af spulestrålen afbrydes, sætter tryksiden af pumpen i direkte forbindelse med dens sugeside. Denne teknisk 35 enkelt gennemførlige løsning har dog den betydelige 2 2DK 94 00467 U3 ulempe, at fordi motoren og pumpen også kører under forbigående afbrydelse af spulestrålen foreligger dér i dette tidsrum et unødigt forbrug af elektrisk energi bortset fra det unødige slid på de i bevægelse værende 5 dele. Når disse afbrydelsesperioder desuden ikke er virkelig korte optræder der en overhedning af det i pumpen værende vand, hvilket kan føre til en hurtigere nedslidning af dens tætninger.The users of the known high-pressure cleaner know that as soon as the high-pressure cleaner is switched on, the engine and consequently the pump are still in operation even when the water jet is switched off without switching off the high-pressure cleaner completely by operating the switch placed on its body. However, this is usually not done by the user when he must interrupt the dispensing of the flushing jet, but only when he has finished flushing. This is possible because by the known high pressure cleaners a bypass is provided which, as soon as the discharge of the flush jet is interrupted, puts the pressure side of the pump in direct contact with its suction side. This technically simple solution, however, has the considerable disadvantage that, because the motor and pump also run during transient interruption of the flushing jet, there is unnecessary consumption of electrical energy during this time apart from the unnecessary wear on the moving parts. 5 parts. Furthermore, when these interruption periods are not really short, there is an overheating of the water present in the pump, which can lead to a faster wear of its seals.
Formålet med den foreliggende frembringelse er at 10 undgå disse ovennævnte ulemper ved de kendte høj tryks-rensere.The object of the present invention is to avoid these aforementioned disadvantages of the known high pressure cleaners.
Dette opnås ved hjælp af højtryksrenseren ifølge den foreliggende frembringelse, der er ny ved, at den har en automatisk udkoblingsindretning for motoren, som 15 reagerer på det trykstød, der optræder som følge af spulestrålens afbrydelse efter- lukning af sving- og styreorganets ventil. ’ På denne måde kobles også elektromotoren automatisk fra hver gang brugeren afbryder spulestrålen gennem 20 lukning af den ventil, hvormed sving- og styreorganet er forsynet, hvorved også vandcirkulationen i pumpen ophører således, at enhver overhedning af sidstnævnte undgås.This is achieved by means of the high-pressure cleaner according to the present invention, which is new in that it has an automatic shut-off device for the motor which responds to the pressure shock resulting from the interruption of the flushing jet after closing the swing and control valve. In this way, the electric motor is also automatically switched off every time the user disconnects the flushing jet by closing the valve provided with the swing and control means, thereby also stopping the water circulation in the pump so that any superheating of the latter is avoided.
Ved højtryksrenseren ifølge frembringelsen køles 25 den i et tæt hus indesluttede elektromotor fortrinsvis ved, at hele eller en del af strømningen af det til højtryksrenseren tilførte vand cirkuleres omkring huset. Foruden en stor sikkerhed mod overhedning muliggør dette en omend ringe forhøjelse af spulestrålens temperatur, 30 hvilket set ud fra et rengøringskapacitetssynspunkt sikkert er positivt.In the high pressure cleaner according to the invention, the electric motor enclosed in a tight housing is preferably cooled by circulating all or part of the flow of the water supplied to the high pressure cleaner around the housing. In addition to a great security against superheating, this allows for a slight increase in the temperature of the flushing jet, which from a cleaning capacity point of view is certainly positive.
Hvis den i højtryksrenserens krop tilstedeværende elektromotor er en børstemotor, da er det aftætnede hus, i hvilket motoren er indeholdt, fortrinsvis forsynet med 35 en udluftningsventil, som muliggør, at eventuelle 3 3DK 94 00467 U3 gasser, som måtte udvikles fra det i berøring med de af børsterne frembragte gnister kommende støv ledes bort.If the electric motor present in the body of the high-pressure cleaner is a brush motor, then the sealed housing in which the motor is contained is preferably provided with a vent valve which allows any gases which may develop from it in contact with the the sparks produced by the brushes coming off the dust are dissipated.
Frembringelsen vil i det følgende blive forklaret nærmere ved hjælp af et udførelseseksempel under 5 henvisning til tegningen, på hvilken fig. 1 viser et sidebillede af kroppen af høj tryks-renseren, fig. 2 et billede af denne set oppefra delvis i snit, 10 fig. 3 et forstørret længdesnit lagt langs linien 3-3 i fig.. 2, fig. 4 et billede bagfra i retning af pilen 4 i fig. 1, fig. 5 et billede forfra i retning af pilen 5 i 15 fig. 1, og fig. 6 en skematisk fremstilling af den automatiske udkoblingsindretning for motoren.The invention will now be explained in more detail with the aid of an exemplary embodiment with reference to the drawing, in which fig. 1 is a side view of the body of the high pressure cleaner; FIG. 2 is a partial sectional view of this view, FIG. 3 is an enlarged longitudinal sectional view taken along line 3-3 of FIG. 2; 4 is a rear view of the arrow 4 in FIG. 1, FIG. 5 is a front view of the arrow 5 in FIG. 1, and FIG. 6 is a schematic representation of the automatic switch-off device for the motor.
Som allerede påpeget er i tegningsfigurerne kun vist kroppen af en højtryksrenser, der i sin helhed er 20 betegnet 10, da de øvrige dele af renseren (slanger, sving- og styreorgan for spulestrålen, elektrisk forbindelseskabel) er af helt sædvanlig udformning og deres fremstilling på ingen måde ville bidrage nyttigt til forståelsen af den foreliggende frembringelse.As already pointed out, the drawings show only the body of a high-pressure cleaner, which in its entirety is designated 10, since the other parts of the cleaner (hoses, swivel and control means for the flushing jet, electrical connection cable) are of the usual design and their manufacture no way would contribute usefully to the understanding of the present invention.
25 Som det fremgår af tegningsfigurerne har kroppen 10 af højtryksrenseren i sin helhed form af en vogn med en slank karrosse 2, som er monteret på to hjul 14 og har en fod 16. Når man hæver den forreste del af kroppen 10, er det dermed takket være hjulene 14 muligt let at 3 0 flytte kroppen 10 for at bringe den i den mest hensigtsmæssige brugsstilling.25 As can be seen from the drawings, the body 10 of the high-pressure cleaner is in its entirety in the form of a carriage with a slender body 2 mounted on two wheels 14 and having a foot 16. Thus, when raising the front part of the body 10, it is thanks to the wheels 14, it is possible to easily move the body 10 to bring it into the most suitable position of use.
Karrossen 12 indeholder et tæt metalhus 18., i hvilket en elektrisk børstemotor 20 er indesluttet. Elektromotoren 20 fødes gennem et elektrisk kabel 44 35 (fig. 2) , som er forbundet med en elektrisk strømkilde.The body 12 contains a dense metal housing 18. into which an electric brush motor 20 is enclosed. The electric motor 20 is fed through an electric cable 44 35 (Fig. 2) which is connected to an electric power source.
4 4DK 94 00467 U3 t4 4DK 94 00467 U3 t
En i den bageste del af højtryksrenserens krop 10 tilvejebragt kontakt 52 gør det muligt at afbryde den elektriske strømtilførsel til motoren 20.A contact 52 provided in the rear of the high-pressure cleaner body 10 allows the electric power supply to the motor 20 to be interrupted.
Som det tydeligt fremgår af fig. 3, er i huset 18 5 tilvejebragt en indretning til luftcirkulation ' med henblik på køling af motoren 20, som i det væsentlige består af et på motorens aksel fastgjort, og af denne drevet ventilatorhjul 20. Da motoren 20 er en bør-stemotor, som giver gnister, hvorved den mulighed 10 består, at der på grund af kontakt mellem gnister og eventuelt i huset 18 indkommet støv dannes gasser, er sidstnævnte forsynet med en tilsvarende udluftningsventil 24, som fører ud og danner en sikring mod ufordelagtige overtryk, som kunne dannes i huset.As can be seen clearly in FIG. 3, there is provided in the housing 18 5 an air circulation device for cooling the motor 20, which consists essentially of a motor mounted on the shaft of the motor, and of this driven fan wheel 20. As the motor 20 is a brush motor which provides sparks, whereby the possibility 10 exists that gases are formed due to contact between sparks and possible dust entering the housing 18, the latter being provided with a corresponding vent valve 24 which leads out and provides a protection against unfavorable overpressures which could be formed in the House.
15 Elektromotoren 20 køles indirekte, idet det til højtryksrenseren tilførte vand selv cirkuleres i mellemrummet 50, som dannes i kraft af en tæt kappe 48, som omslutter det tætte hus 18 sideværts. Til dette formål står mellemrummet 50 i forbindelse med afsnittet 20 35 af vandtilførselskanalen i kroppen 10's indre.The electric motor 20 is indirectly cooled, the water supplied to the high-pressure cleaner itself being circulated in the gap 50 formed by a tight casing 48 which encloses the dense housing 18 laterally. For this purpose, the space 50 is connected to the section 20 35 of the water supply channel in the interior of the body 10.
Elektromotoren 20 aktiverer gennem en sædvanlig omsætningsmekanisme for dens omdrejningstal (i fig. 1 betegnet samlet med 26) en sædvanlig pumpe 32 med tre stempler (af hvilke i fig. 3 kun et betegnet 28 er 25 synligt), som er forsynet med returfjedre og aktiveres cyklisk af et knastelement 30. Pumpen 32 suger vand til gennem mundstykket 34, som gennem en sædvanlig slange (ikke vist) kan tilsluttes vandledningsnettet eller en anden vandkilde. Det ansugede vand føder pumpen 32 30 gennem kanalerne 36, 38 og 40, som danner den nævnte vandtilførselskanal i kroppen 10's indre. Pumpen 32's fremføringsstråle træder under tryk ud af trykmundstykket 42, som er tilvejebragt i området af den forreste ende af højtryksrenserens krop 10. Til trykmundstykket 35 42 kan sluttes en sædvanlig slange (ikke vist), ved hvis 5 5DK 94 00467 U3 anden ende et sædvanligt sving- og styreorgan (ligeledes ikke vist) for spulestrålen, som tilvejebringes af den i drift værende højtryksrenser, er tilsluttet og i det specifikke tilfælde har form af en pistol.The electric motor 20 activates, through a conventional turnover mechanism for its rpm (in Fig. 1 denoted together with 26) a conventional pump with three pistons (of which in Fig. 3 only a denoted 28 is visible), which is provided with return springs and is activated. cyclically by a cam element 30. The pump 32 draws water through the nozzle 34, which can be connected to the water supply network or other water source through a conventional hose (not shown). The suction water feeds the pump 32 30 through the channels 36, 38 and 40 which form said water supply channel in the interior of the body 10. The pressure jet of the pump 32 exits under pressure from the nozzle 42 provided in the region of the front end of the high-pressure cleaner body 10. A conventional hose (not shown) can be connected to the nozzle 35 at whose other end a conventional the swivel and control means (also not shown) of the flushing jet provided by the high-pressure cleaner in operation are connected and, in the specific case, in the form of a gun.
5 Det elektriske kabel 44 (fig. 2) fører bort fra en automatisk indretning (i sin helhed betegnet 46 og mest synlig i fig. 6) som griber ind for at udkoble motoren 20, når fænomenet trykstød optræder efter lukning af den på sving- og styreorganet (ikke vist) værende ventil. 10 Indretningen 46 har en sædvanlig pressostat 54, som gennem en_rørledning 56 (fig. 2) er hydraulisk forbundet med tryksiden af pumpen 32 og indstillet .til et tilsvarende tryk (normalt 110 bar). Når trykket som følge af det nævnte trykstød på tryksiden når en værdi, som 15 pressostaten er indstillet på, aktiverer sidstnævnte en mikroswitch 58, som afbryder strømmen til motoren 20 og kobler denne fra.5 The electric cable 44 (Fig. 2) away from an automatic device (fully designated 46 and most visible in Fig. 6) which engages to disengage the motor 20 when the phenomenon of compression shock occurs after closing it on the pivot. and the control (not shown) valve. The device 46 has a conventional pressure switch 54 which is hydraulically connected through a conduit 56 (Fig. 2) to the pressure side of the pump 32 and adjusted to a corresponding pressure (usually 110 bar). When the pressure due to said pressure shock on the pressure side reaches a value at which the pressure switch is set, the latter activates a microswitch 58 which cuts off the current to the motor 20 and switches it off.
På grund af tilstedeværelsen af den automatiske indretning 46 har højtryksrenseren ifølge den fore-20 liggende frembringelse ikke den sædvanlige bypass som kendte højtryksrensere er forsynet med.Due to the presence of the automatic device 46, the high-pressure cleaner according to the present invention does not have the usual bypass provided by known high-pressure cleaners.
Sammenfattende henvises der til kompaktheden og den konstruktive enkelthed af kroppen 10 af den på tegningen viste højtryksrenser, som lader tilforladeligheden og 25 den lange anvendelsestid, som udmærker højtryksrenseren ifølge frembringelsen, erkende.In summary, reference is made to the compactness and constructive simplicity of the body 10 of the high-pressure cleaner shown in the drawing which recognizes the reliability and long service life of the high-pressure cleaner according to the invention.
Claims (4)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT93RE000107U IT231077Y1 (en) | 1993-12-22 | 1993-12-22 | PRESSURE WASHER. |
Publications (1)
Publication Number | Publication Date |
---|---|
DK9400467U3 true DK9400467U3 (en) | 1995-01-27 |
Family
ID=11398506
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DK9400467U DK9400467U3 (en) | 1993-12-22 | 1994-12-20 | Pressure Washer |
Country Status (3)
Country | Link |
---|---|
DE (1) | DE9417662U1 (en) |
DK (1) | DK9400467U3 (en) |
IT (1) | IT231077Y1 (en) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DK0873199T3 (en) * | 1995-12-22 | 2004-03-29 | Kaercher Gmbh & Co Kg Alfred | High-pressure cleaning device |
DE19624144A1 (en) * | 1996-06-18 | 1998-01-15 | Wap Reinigungssysteme | High pressure cleaner with handle and accessory holder |
DE102007009394A1 (en) | 2007-02-21 | 2008-08-28 | Alfred Kärcher Gmbh & Co. Kg | Motor pump unit |
JP5373103B2 (en) | 2008-11-14 | 2013-12-18 | アルフレツド ケルヒヤー ゲーエムベーハー ウント コンパニー カーゲー | High pressure washer |
WO2010091698A1 (en) | 2009-02-13 | 2010-08-19 | Alfred Kärcher Gmbh & Co. Kg | Motor pump unit |
DE102009010461A1 (en) | 2009-02-13 | 2010-08-19 | Alfred Kärcher Gmbh & Co. Kg | Motor pump unit |
WO2010091699A1 (en) | 2009-02-13 | 2010-08-19 | Alfred Kärcher Gmbh & Co. Kg | Motor pump unit |
EP2745011B1 (en) * | 2011-08-15 | 2017-05-24 | Alfred Kärcher GmbH & Co. KG | Motor-pump-unit |
CN109861458B (en) * | 2019-02-19 | 2024-03-12 | 格力博(江苏)股份有限公司 | High-pressure pump |
-
1993
- 1993-12-22 IT IT93RE000107U patent/IT231077Y1/en active IP Right Grant
-
1994
- 1994-11-03 DE DE9417662U patent/DE9417662U1/en not_active Expired - Lifetime
- 1994-12-20 DK DK9400467U patent/DK9400467U3/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
DE9417662U1 (en) | 1994-12-15 |
ITRE930107V0 (en) | 1993-12-22 |
IT231077Y1 (en) | 1999-07-12 |
ITRE930107U1 (en) | 1995-06-22 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
URA | Request for termination filed (utility model) |
Free format text: 950911 |
|
UYT | Decision on examination: utility model terminated |
Effective date: 19951221 |