EP0451073B1 - Vorrichtung zur hydraulischen Fernsteuerung eines Gerätes, insbesondere eines Hochdruckreinigers - Google Patents

Vorrichtung zur hydraulischen Fernsteuerung eines Gerätes, insbesondere eines Hochdruckreinigers Download PDF

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Publication number
EP0451073B1
EP0451073B1 EP91440024A EP91440024A EP0451073B1 EP 0451073 B1 EP0451073 B1 EP 0451073B1 EP 91440024 A EP91440024 A EP 91440024A EP 91440024 A EP91440024 A EP 91440024A EP 0451073 B1 EP0451073 B1 EP 0451073B1
Authority
EP
European Patent Office
Prior art keywords
pressure
hose
hand
control device
processing unit
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.)
Expired - Lifetime
Application number
EP91440024A
Other languages
English (en)
French (fr)
Other versions
EP0451073A1 (de
Inventor
Rémy Salber
Daniel Beaute
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.)
Comptoir De L'injection Diesel Et Appareillage Electrique Cidape Sa
Original Assignee
Comptoir De L'injection Diesel Et Appareillage Electrique Cidape Sa
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 Comptoir De L'injection Diesel Et Appareillage Electrique Cidape Sa filed Critical Comptoir De L'injection Diesel Et Appareillage Electrique Cidape Sa
Publication of EP0451073A1 publication Critical patent/EP0451073A1/de
Application granted granted Critical
Publication of EP0451073B1 publication Critical patent/EP0451073B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B08B3/028—Spray guns
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
    • B05B12/14—Arrangements for controlling delivery; Arrangements for controlling the spray area for supplying a selected one of a plurality of liquids or other fluent materials or several in selected proportions to a spray apparatus, e.g. to a single spray outlet
    • B05B12/1418—Arrangements for controlling delivery; Arrangements for controlling the spray area for supplying a selected one of a plurality of liquids or other fluent materials or several in selected proportions to a spray apparatus, e.g. to a single spray outlet for supplying several liquids or other fluent materials in selected proportions to a single spray outlet
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
    • B05B9/002—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour incorporating means for heating or cooling, e.g. the material to be sprayed
    • 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
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
    • B05B9/01—Spray pistols, discharge devices
    • 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

Definitions

  • the present invention relates to the field of remote control of apparatuses, and relates to a device for hydraulically remote control of an apparatus, in particular of a high pressure cleaner in accordance with the preamble of claim 1 (EP-A- 0120331).
  • the most common system is high pressure mechanical gun control.
  • the control is, in this case, managed by hydraulic components, and requires precise mechanical adjustments as well as a very good sealing of the hydraulic circuit, no protection against micro-water leakage being provided.
  • a malfunction of the hydraulic system can lead to hazards in the operation of the cleaner and, under certain conditions, cause incidents with serious consequences for the user and the cleaner.
  • this system only allows the control to start and stop the cleaner and therefore has the disadvantage of not allowing remote control of the different functions of the cleaner, such as water selection. cold only, hot water only or hot water with detergent. In other words, to change the operating mode of the cleaner, it is necessary to return to the machine.
  • Another remote control of a cleaner is the electric wire remote control.
  • Remote control of functions is provided by a special high-pressure hose, called twin, that is to say, having an electrical sheath with several conductive wires, associated with a high-pressure line.
  • twin high-pressure hose
  • the design of this hose makes it very expensive. It is also fragile and unwieldy due to its weight and rigidity.
  • the remote control gun has the same drawbacks as the hose, namely fragility to impact, limited maneuverability and high cost price.
  • the third and last existing remote control mode for high pressure cleaners is remote control by radio frequency signals.
  • This control principle allows the remote control of the various functions of the cleaner through a traditional high-pressure hose.
  • the command is carried out by means of a coded radio frequency transmission, transmitted via the metal braid of the hose.
  • the emission becomes permanent, and its radiation can disturb the environment of the hose. Transmission and reception can be disturbed in turn, and consequently cause untimely stops of the cleaner, independently of the user's will.
  • remote control is impossible, for example when the environment of the cleaner is too disturbed.
  • the working frequencies used do not tolerate any false contact at the connection between the gun and the cleaner.
  • the remote controls by electric wires and by radio frequency signals also have the drawback of not succeeding in controlling the flows, in particular when the cleaner is stopped in the hot water phase or in the vapor phase.
  • the present invention aims to overcome all the aforementioned drawbacks.
  • the apparatus further comprises, on the one hand, by a hose comprising a device for controlling the starting and stopping of operation of the device to be controlled and, if necessary, a cleaning lance, on the other hand, by a programmer device also mounted in series with the hose upstream or downstream of the control device, integrated or not in said control device, and, finally, by a processing unit, continuously, sequentially, recording the pressure in the hose by means of a corresponding transducer, and controlling, in particular, the operation of a motor-pump group supplying said hose with pressurized fluid, as well as the nature and composition of said supply fluid, as a function of pressure or evolution of the pressure recorded in said hose.
  • the remote control device is mainly constituted, on the one hand, by a hose 2 comprising a control device 3 for switching on and off. operating the device 1 to be controlled and, where appropriate, a cleaning lance 4, on the other hand, by a programmer device 5 also mounted in series with the hose 2 upstream or downstream of the control device 3, integrated or not integrated into said control device 3, and, finally, by a processing unit 6, continuously recording, sequentially, the pressure in the hose 2 by means of a corresponding transducer 7, and controlling, in particular, the operation of a motor-pump group 8 supplying said flexible 2 in pressurized fluid, as well as the nature and composition of said supply fluid, as a function of the pressure or of the evolution of the pressure recorded in said flexible 2.
  • the processing unit 6 automatically controls, on the one hand, the starting of the motor-pump group 8, by means of a corresponding interface not shown, as soon as the pressure in the hose 2 stabilizes at a preset value, below a working pressure, or falls below the lowest of a set of preset pressure values and, on the other hand, the pump-motor group 8 stops, as soon as the pressure in the flexible 2 reaches and / or exceeds another preset value, greater than the working pressure.
  • control device 3 is in the form of a high pressure mechanical gun, cooperating with at least one non-return valve 9, arranged in downstream of the pump of the motor-pump group 8, or integrated therein.
  • the actuation of the trigger 10 causes a pressure drop in the hose 2 and subsequently the starting of the motor-pump group 8 by the treatment unit 6, while the release of said trigger 10, preventing the flow of the fluid under pressure through the hose 2, causes a rapid increase in the pressure in said hose 2 and, consequently, the shutdown of the motor-pump unit 8 by the processing unit 6.
  • the non-return valve (s) 9 by cooperating with the high pressure mechanical gun 3, allows (tent), after stopping the motor-pump group 8 following a release of the trigger 10, to maintain the pressure in the portion of hose 2 between said mechanical gun 3 and the valve or valves non-return 9, at a value greater than the working pressure or at least, greater than the values causing an automatic restarting of the motor-pump group 8 by the processing unit 6 and this, until a new actuation of the trigger 10 of the mechanical gun 3 by the user.
  • the programming device 5 is mainly constituted, on the one hand, by a support body 11 provided with a conduit 12 through which the pressurized fluid passes, on the other hand, by an element mobile 13 obstructing said conduit 12 under the action of an elastic device 14 and, finally, by a device 15 for adjusting the pressure force of said elastic device 14, said programmer device 5 thus allowing, after actuation of the mechanical gun 3, to maintain the pressure in the hose 2 at a preprogrammed value lower than the working pressure, determining the nature and composition of the supply fluid of the hose 2 during the consecutive operating phase of the device 1.
  • the pressure drop in the hose 2, following the actuation of the trigger 10 of the mechanical gun 3, will be limited, and said fluid pressure will tend towards a threshold value, equal to the pressure force applied by the device elastic 14 on the movable element 13 obstructive and the value of which is set by the user by means of the adjustment device 15, prior to actuation of said trigger 10.
  • This stabilization of the pressure in the hose 2 to a preprogrammed value is identified by the processing unit 6 by means of sequential readings close to the pressure carried out by means of the transducer 7, the value of the pressure threshold determining the characteristics such as, for example, temperature, nature or even composition, of the supply fluid injected into the hose 2 using the motor-pump group 8, which is started as soon as the existence a pressure threshold has been checked and its value acquired by the processing unit 6.
  • the movable member 13 and the elastic device 14 are, respectively, in the form of a sliding needle, possibly provided an O-ring 21, and a calibrated spring, the adjusting device 15 being, advantageously, in the form of a support piece 16 of said movable spring 14, the position of which is determined by a control member 17 in several states.
  • the latter can be produced, for example, in the form of a control lever 18 provided with a cam 19 mounted eccentrically (FIG. 2) or also in the form of a button 20, the support piece of which 16 can be more or less pressed into the support body 11 (FIGS. 3A and 3B).
  • a more or less compressed spring 14 corresponds a pressure force of the needle 13 against the fluid pressure in the conduit 12 more or less important and, consequently, a value of the pressure threshold or level more or lower.
  • the remote control device of the device 1 further comprises a console 22 for programming the values of the parameters defining the nature and the composition of the supply fluid, as well as a display device 23 of these values and informative messages when using the device 1, the acquisition of the parameters programmed and management of the display being carried out by the processing unit 6.
  • the supply fluid is mainly water.
  • the processing unit 6 controls the injection, into the supply fluid, coming from a reservoir 27 for example, of additional products such as, for example, cleaning product, anti-tartar, etc. from corresponding reservoirs 24, by means of controlled opening and closing devices 25 such as, for example, solenoid valves.
  • the processing unit 6 can also control the operation of a heating device 26 for the supply fluid disposed upstream or downstream of the motor-pump group 8 and shown, respectively, in broken lines and in solid lines. in Figure 1 according to its arrangement.
  • control member 17 may have three different positioning states, corresponding to three pressure thresholds, one of which may be at 0 bar, and, consequently, to three consecutive operating modes of the device. 1 different such as, for example, a threshold value greater than or equal to 20 bars for operation in cold water, a threshold value less than 20 bars for operation in hot water and, finally, a pressure drop less than 10 bars without the appearance of a threshold, for operation in hot water supplemented with cleaning product.
  • the water heating temperature as well as the concentration of cleaning product are, if necessary, fixed beforehand by means of the programming console 22.
  • FIGS. 4A to 4D representing the pressure in the hose 2 during the period of use a high pressure cleaner comprising said remote control device.
  • the pressure in the hose 2 is constant and equal to the working pressure, 160 bars in the case of FIG. 4A, and this, as long as the trigger 10 is held by the user (FIG. 4A ).
  • the value of the pressure in the hose 2 becomes equal to or slightly less than the value of the pressure exerted by the elastic device 14 on the movable element 13 which then obstructs the conduit 12 of the programming device 5, d 'where it results in a stabilization of the pressure in the hose 2 at a threshold value, about 20 to 25 bars in the case of Figure 4D, preset by means of the adjusting device 15.
  • a threshold value about 20 to 25 bars in the case of Figure 4D, preset by means of the adjusting device 15.
  • the existence of this pressure threshold as well as its value are taken into account by the processing unit 6 which very quickly deduces therefrom the operating mode of the apparatus 1 in the consecutive working phase.
  • the group motor-pump 8 is then restarted by the treatment unit, supplied with the fluid whose characteristics have been determined by virtue of the pressure threshold. From t5, the pressure increases rapidly in the hose 2 until it reaches the working pressure again at t6.
  • the control device is also capable of protecting the device 1 against micro-leaks when said device 1 is in standby, that is to say when it is switched on but not used.
  • the unit 6 orders the device 1 to go to sleep.
  • the latter does not prevent the operation of the device 1. Indeed, the user will then have a remote control of the device 1 similar to that, conventional, produced by means of '' a high pressure mechanical gun.
  • the characteristics of the supply fluid may, in this case, be determined directly by means of the console 22.

Landscapes

  • Cleaning By Liquid Or Steam (AREA)
  • Cleaning In General (AREA)
  • Fluid-Pressure Circuits (AREA)

Claims (6)

  1. Einrichtung zur Fernsteuerung auf hydraulischem Weg eines Gerätes, insbesondere eines Hochdruckeinigers, welche im wesentlichen einerseits aus einem flexiblen Element (2), welches eine Steuereinrichtung (3) zur Inbetriebnahme und zum Stoppen der Funktion des zu steueruden Gerätes (1) und gegebenenfalls eine Reinigungslanze (4) umfaßt, und andererseits aus einer Programmierungseinrichtung (5), welche in der Steuereinrichtung (3) integriert ist oder nicht, und schließlich aus einer Bearbeitungseinheit (6) besteht, welche in Permanenz in sequentieller Weise den Druck in dem flexiblen Element (2) mit Hilfe eines entsprechenden Meßwandlers (7) aufnimmt und insbesondere das Funktionieren einer Motor-Pumpe-Gruppe (8), welche das flexible Element (2) mit unter Druck stehendem Fluid speist, ebenso wie die Art und die Zusammensetzung des zuzuführenden Fluids kontrolliert, dadurch gekennzeichnet, daß die Programmierungseinrichtung (5) in Serie mit dem flexiblen Element (2), stromaufwärts oder stromabwärts von der Steuereinrichtung (3), angeordnet ist und nach der Betätigung der Steuereinrichtung (3), welche das flexible Element (2) freigibt, und vor der Inbetriebnahme der Motor-Pumpe-Gruppe (8) die Aufrechterhaltung eines Druckes in dem flexiblen Element (2) auf einem vorprogrammierten Wert, welcher unter einem Arbeitsdruck liegt, sicherstellt, wobei die Existenz und der Wert des Schwellwertes des Druckes von der Bearbeitungseinheit (6) in Betracht gezogen werden, welche daraus die Art des Funktionierens des Gerätes (1) für die folgende Arbeitsphase schließt und die Motor-Pumpe-Gruppe (8) in Betrieb setzt.
  2. Einrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Steuereinrichtung (3) die Form einer mechanischen Hochdruckpistole aufweist, welche mit wenigstens einem Rückschlagventil (9) zusammenwirkt.
  3. Einrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Programmierungseinrichtung (5) hauptsächlich einerseits aus einem Trägerkörper (11), in welchem eine von dem unter Druck stehenden Fluid durchflossenen Leitung (12) vorgesehen ist, und andererseits aus einem beweglichen Element (13), welches die Leitung (12) durch Einwirkung einer elastischen Einrichtung (14) abschließt, und schließlich aus einer Einrichtung (15) zum Regeln der Anpreßkraft der elastischen Einrichtung (14) besteht.
  4. Einrichtung nach Anspruch 3, dadurch gekennzeichnet, daß das bewegliche Element (13) und die elastische Einrichtung (14) jeweils in Form einer verschiebbaren Düsennadel und einer kalibrierten Feder ausgebildet sind, wobei die Regeleinrichtung (15) vorzugsweise in Form eines Abstützstückes (16) der beweglichen Feder (14), deren Position durch ein Steuerorgan (17) mit mehreren Stufen bestimmt ist, ausgebildet ist.
  5. Einrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß sie außerdem eine Konsole (22) zum Programmieren der Werte der Parameter, welche die Art und die Zusammensetzung des zuzuführenden Fluids definieren, ebenso wie eine Einrichtung (23) zum Sichtbarmachen dieser Werte und von informativen Nachrichten bei der Verwendung des Gerätes (1), der Erfassung der Programmierten Parameter und der Steuerung der Sichtbarmachung, welche durch die Bearbeitungseinheit (6) realisiert werden, aufweist.
  6. Einrichtung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß das zuzuführende Fluid hauptsächlich Wasser ist, wobei die Bearbeitungseinheit (6) einerseits die Einspritzung von zusätzlichen Produkten in das zuzuführende Fluid, ausgehend von entsprechenden Vorratsbehältern (24), mit Hilfe von Einrichtungen (25) zum gesteuerten Öffnen und Schließen kontrolliert und andererseits die Erhitzung des zuzuführenden Fluids mit Hilfe einer Heizeinrichtung (26), welche stromaufwärts oder stromabwärts der Motor-Pumpe-Gruppe (8) angeordnet ist, kontrolliert.
EP91440024A 1990-04-03 1991-04-02 Vorrichtung zur hydraulischen Fernsteuerung eines Gerätes, insbesondere eines Hochdruckreinigers Expired - Lifetime EP0451073B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9004493A FR2660216B1 (fr) 1990-04-03 1990-04-03 Dispositif de telecommande par voie hydraulique d'un appareil, notamment d'un nettoyeur haute pression.
FR9004493 1990-04-03

Publications (2)

Publication Number Publication Date
EP0451073A1 EP0451073A1 (de) 1991-10-09
EP0451073B1 true EP0451073B1 (de) 1994-09-21

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EP91440024A Expired - Lifetime EP0451073B1 (de) 1990-04-03 1991-04-02 Vorrichtung zur hydraulischen Fernsteuerung eines Gerätes, insbesondere eines Hochdruckreinigers

Country Status (5)

Country Link
US (1) US5170940A (de)
EP (1) EP0451073B1 (de)
AT (1) ATE111782T1 (de)
DE (1) DE69104102T2 (de)
FR (1) FR2660216B1 (de)

Cited By (1)

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Publication number Priority date Publication date Assignee Title
CN104741334A (zh) * 2015-04-10 2015-07-01 江苏苏美达五金工具有限公司 一种多种工作模式的高压清洗机

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JPH0794468B2 (ja) * 1992-02-28 1995-10-11 株式会社島津製作所 固相法ペプチド合成用クリーベイジ処理装置
NL1015139C2 (nl) * 2000-05-09 2003-08-13 Waterkracht Bv Werkwijze en inrichting voor reiniging met water.
US6675548B2 (en) * 2000-08-31 2004-01-13 Dyk Incorporated Method and apparatus for texturizing tank walls
US6626374B1 (en) 2001-07-16 2003-09-30 Michael R. Diedrick Dual pump high pressure cleaning apparatus
DE10218143A1 (de) * 2002-04-23 2003-11-13 Alto Deutschland Gmbh Sicherheitsfernsteuerung für den Betrieb von Hochdruckreinigern
DE10341628B4 (de) * 2003-09-10 2006-10-12 Alto Deutschland Gmbh Hochdruckreiniger mit Systemtrenner
DE102005028116A1 (de) * 2005-06-13 2006-12-14 Alfred Kärcher Gmbh & Co. Kg Verfahren zum Steuern eines Reinigungsgerätes und Reinigungsgerät zur Durchführung des Verfahrens
US20090014468A1 (en) * 2007-07-03 2009-01-15 Byers Bruce E Fluid delivery system and method
CN102700454A (zh) * 2012-07-02 2012-10-03 成都西南交大驱动技术有限责任公司 一种轮式带电水冲洗车
CN103343756B (zh) * 2013-07-04 2015-08-26 中国北车集团大连机车车辆有限公司 液体双级恒压供应站

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Publication number Priority date Publication date Assignee Title
CN104741334A (zh) * 2015-04-10 2015-07-01 江苏苏美达五金工具有限公司 一种多种工作模式的高压清洗机

Also Published As

Publication number Publication date
FR2660216A1 (fr) 1991-10-04
FR2660216B1 (fr) 1992-07-31
DE69104102T2 (de) 1995-04-27
EP0451073A1 (de) 1991-10-09
US5170940A (en) 1992-12-15
ATE111782T1 (de) 1994-10-15
DE69104102D1 (de) 1994-10-27

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