WO2017194171A1 - Pistolet à soupape pour nettoyeur haute pression - Google Patents

Pistolet à soupape pour nettoyeur haute pression Download PDF

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Publication number
WO2017194171A1
WO2017194171A1 PCT/EP2016/060898 EP2016060898W WO2017194171A1 WO 2017194171 A1 WO2017194171 A1 WO 2017194171A1 EP 2016060898 W EP2016060898 W EP 2016060898W WO 2017194171 A1 WO2017194171 A1 WO 2017194171A1
Authority
WO
WIPO (PCT)
Prior art keywords
valve
actuating
handle
gun according
force
Prior art date
Application number
PCT/EP2016/060898
Other languages
German (de)
English (en)
Inventor
Michael Maier
Christoph Breuer
Ralph Seitter
Daniel KNÖDLER
Original Assignee
Alfred Kärcher Gmbh & 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 Kärcher Gmbh & Co. Kg filed Critical Alfred Kärcher Gmbh & Co. Kg
Priority to DK16722890.7T priority Critical patent/DK3454993T3/da
Priority to PCT/EP2016/060898 priority patent/WO2017194171A1/fr
Priority to CN201680084677.5A priority patent/CN109070108B/zh
Priority to EP16722890.7A priority patent/EP3454993B1/fr
Publication of WO2017194171A1 publication Critical patent/WO2017194171A1/fr

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Classifications

    • 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
    • B05B12/002—Manually-actuated controlling means, e.g. push buttons, levers or triggers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/30—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages
    • B05B1/3026—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the controlling element being a gate valve, a sliding valve or a cock
    • 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

Definitions

  • the invention relates to a valve gun for a high-pressure cleaning device for the controlled release of a cleaning liquid, comprising a gun housing having a handle with a thumb and forefinger of the user associated upper end portion and a top end portion facing away from the lower end region, and with a gun housing in the flow path between a valve disposed having a closing body, which in a closed position on a valve seat tightly and is movable by moving a valve stem to an open position, wherein the liquid outlet is arranged on a front side of the gun housing, and wherein an actuating member for moving the valve tappet is arranged on a back side remote from the liquid outlet of the handle.
  • the cleaning liquid used is preferably water, to which a cleaning chemical may be admixed.
  • a pressure hose can be connected to the liquid inlet of the valve gun and, for example, a spray lance can be connected to the liquid outlet of the valve gun.
  • a pressure hose of the valve gun pressurized cleaning liquid can be supplied, and on the spray lance, the cleaning liquid can be directed to an object.
  • the user can actuate an actuator of the valve gun and thereby open a valve disposed in the flow path between the fluid inlet and the fluid outlet.
  • the actuator is mechanically coupled to a valve lifter which can be displaced by actuation of the actuator and thereby moves a closing body of the valve in an open position, in which the
  • Closing body takes a distance to a valve seat. In the open position of the closing body, the liquid inlet is in fluid communication with the liquid outlet. If the user releases the actuator, then the closure body returns to its closed position and interrupts the flow connection between the liquid inlet and the liquid outlet.
  • a valve gun is known from the document DE 603 17 447 T2, in which an actuating lever is pivotably mounted on a central region of the pistol housing and is coupled to a release lever pivotally mounted on the lower end region of the handle.
  • the actuating lever is arranged as well as the release lever on the liquid outlet facing the front of the handle and can be operated by the user in the manner of a classic trigger lever with your fingers. Prolonged operation can lead to fatigue of the user.
  • the use of two levers coupled together also makes the valve gun prone to failure and expensive.
  • valve gun in which the liquid inlet and the liquid outlet are arranged adjacent to the lower end portion of the handle.
  • the actuator is designed as a hand lever, which is arranged on the liquid outlet facing the front of the handle and can be operated by the user with his fingers. As already mentioned, this can lead to fatigue of the user for a longer period of operation.
  • a valve gun in which the actuator is located on the back of the handle facing away from the liquid outlet, is known from US Pat
  • WO 2015/086085 AI known.
  • the arrangement of the actuator at the back of the handle has the advantage that the user can operate the actuator with his palm, wherein the valve gun is pressed against the palm of the user under the influence of the recoil of the exiting the liquid outlet cleaning fluid. This facilitates the handling of the valve gun, as the user's fingers are relieved.
  • the actuator is out of the document
  • Object of the present invention is to develop a valve gun of the generic type such that it has a simpler structural design.
  • valve stem from the actuator at a distance from the upper end portion of the handle with an actuating force can be acted upon.
  • an actuating force can be transmitted from the actuating member to the valve tappet without the need for additional mechanical coupling elements.
  • the valve tappet is acted upon at a distance from the upper end region of the handle by the actuating force exerted by the actuating member.
  • the actuating member holds the valve stem in the lower end region of the handle or in the region of a protective bow of the pistol. lengekoruses acted upon by the actuating force. Between the guard and the handle, the valve gun can form a handle opening into which the user can engage with his fingers when grasping the handle.
  • the valve stem may be rigidly connected to the closing body of the valve.
  • the valve stem is integrally connected to the closing body, so that the valve stem together with the closing body forms a common component, which may be made of metal, for example.
  • the closing body may for example be designed spherical or form a cone that can be moved by the valve stem from a closed position to an open position.
  • the valve is arranged in an advantageous embodiment of the invention, at least partially in the lower end region of the handle and / or in a subsequent to the lower end portion guard of the gun body.
  • the valve gun between a guard and the handle can form a handle opening, in which the user can engage with his fingers when grasping the handle.
  • the valve may be at least partially, preferably completely, positioned in the lower end region of the handle or, for example, also in a transitional region between the lower end region of the handle and the safety bar or else completely in the protective bar.
  • the valve preferably has a valve housing with a valve inlet and a valve outlet, wherein in the valve housing, the valve seat and the closing body are arranged and the valve outlet is connected via a drain line to the liquid outlet of the valve gun in flow communication.
  • a drain line is arranged in the gun housing, through which the cleaning fluid from the valve outlet to the liquid outlet of the gun body can flow.
  • the drain line is arranged in the protective bracket of the gun body.
  • At least a portion of the discharge line is arranged in the handle of the pistol housing.
  • a portion of the drain line extends from the valve outlet to the upper end region of the handle.
  • another line section of the drain line can connect, which runs inside the gun housing.
  • At least a portion of the drain line is designed as a pipe piece.
  • an actuating force can be exerted on the valve tappet by the actuating member. It is advantageous if the actuating member has an applied to the valve tappet force application element.
  • the valve stem can be acted upon with the actuating force to move the closing body of the valve in an open position.
  • the Kraftbeaufschlagungselement may rest loosely on the valve stem.
  • the actuating member on an actuating body which in a rest position with a Fluid outlet facing away from the attachment area protrudes from the back of the handle remote from the liquid outlet and can be moved by the user with his palm in a release position, wherein the Kraftbeaufschlagungselement is arranged on the actuating body. If the operating body is moved by the user from the rest position into the release position, the force-applying element arranged on the actuating body exerts an actuating force on the valve tappet. This has the consequence that the valve stem moves the closing body of the valve in the open position.
  • the force-applying element may be configured, for example, in the form of a cam, a projection, a stop or a driver, or, for example, in the form of a receptacle into which the valve stem with an end facing away from the closing body is inserted.
  • the force-applying element is integrally connected in a preferred embodiment of the invention with the actuating body. It can be provided, for example, that the force-applying element together with the actuating body forms a one-piece plastic molded part.
  • the Kraftbeaufschlagungselement forms a separate component which is fixed to the actuator body.
  • the force-applying element may for example be designed in the form of a pin which is fixed to the actuating body.
  • the force-applying element can be held, for example, in a sleeve-shaped receptacle of the actuating body, in particular the force-applying element can be pressed into the sleeve-shaped receptacle.
  • the Kraftbeaufschlagungselement is made of metal.
  • the force-applying element is held adjustably on the actuating body.
  • a particularly simple handling of the valve gun is achieved in an advantageous embodiment of the invention in that the actuating body is pivotable about a first pivot axis between the rest position and the release position back and forth.
  • the actuator body forms in such an embodiment of a lever that can be pivoted by the user with the palm.
  • the actuator body may be pivotally mounted, for example, on the gun housing or on the valve housing.
  • the first pivot axis is arranged in the lower end region of the handle.
  • Such an arrangement has the consequence that the part of the operating body, which is located in the region of the thumb and forefinger of the user, occupies a considerable distance from the pivot axis. This allows the user to pivot the actuator body with rather little effort from the rest position into the release position.
  • the actuating body forms a lever arm, on which are arranged in the rest position from the back of the handle projecting contact area and the Kraftbeaufschlagungselement.
  • the actuating body is designed in the form of a one-armed lever.
  • the actuating body forms a lever arm, on which both the contact area and the force-applying element are arranged. If the actuating body is pivoted from the rest position forward in the direction of the liquid outlet in the release position, the Kraftbeaufschlagungselement is pivoted in the same direction and exerts a pressure force on the valve stem.
  • the closing body is thereby moved by the valve tappet in a direction away from the handle, wherein it lifts off the valve seat and releases the flow connection between the liquid inlet and the liquid outlet.
  • the actuating body forms a first lever arm and a second lever arm, wherein the rear in the rest position protruding from the handle contact area of the actuating body is disposed on the first lever arm and wherein the Kraftbeaufschlagungselement is arranged on the second lever arm.
  • the actuating body is designed in the form of a two-armed lever.
  • the first pivot axis is arranged between the force-applying element and the abutment region.
  • the force-applying element is pivoted in the opposite direction and exerts a pulling force on the valve stem.
  • the closing body is thereby moved by the valve tappet in a direction facing the handle, wherein it lifts off from the valve seat and the flow connection between the liquid inlet and the liquid outlet releases.
  • the actuating body has a thumb and forefinger of the user associated first end, wherein the distance of the Kraftbeaufschlagungselements from the first end is at least four times the distance occupied by the Kraftbeaufschlagungselement to the first pivot axis.
  • Such a configuration results in very advantageous leverage ratios, so that the user can pivot the actuating body with relatively little effort around the first pivot axis and yet exerted by the Kraftbeaufschlagungselement a significant actuation force on the valve lifter.
  • the closing body can be acted upon by moving the actuating body from the release position to the rest position with a closing force in the direction of the valve seat.
  • a closing force in the direction of the valve seat.
  • an actuating force for opening the valve can be exerted by the actuating body, but also an actuating force for closing the valve can be exerted by the actuating body. If the actuating body is moved from the rest position into the release position, an actuating force can be applied to the valve body via the force-applying element. Tappets are exercised, so that the valve stem moves the closing body in the open position.
  • an actuating force of this kind can be exerted on the valve tappet, preferably again via the force-applying element, so that the valve tappet moves the closing body into the closed position.
  • the valve gun comprises a return spring associated with the actuating body, which acts on the actuating body with a restoring force in the direction of the rest position.
  • the user can move the actuating body against the restoring force exerted by the return spring from the rest position into the release position. If the user releases the actuating body, this is moved back into the rest position by the return spring assigned to the actuating body.
  • the restoring force exerted on the actuating body during the transition from the release position to the rest position by the return spring can be transmitted via the force-applying element to the valve tappet so that the latter moves the closing body back into its closed position.
  • the closing body is movable from the closed position into the open position against the pressure of the cleaning liquid acting on it. If the actuating force exerted on the closing body via the valve lifter is omitted, the closing body automatically assumes its closed position again due to the pressure of the cleaning fluid acting on it.
  • the valve has a closing spring which acts on the closing body with a closing force.
  • a movement of the closing body from the closed position into the open position takes place counter to the action of the closing spring.
  • the valve stem is in such a configuration of the actuator with an actuating force acted upon to open the valve, which is greater than the closing force exerted by the closing spring on the closing body. If the actuating force of the actuating member is omitted, the closing body automatically assumes its closed position under the action of the closing spring.
  • valve gun on a movable between a locking position and an unlocking position locking member for locking the actuator.
  • locking member With the help of the locking member unintentional movement of the actuator can be prevented.
  • the locking member assumes its blocking position, it locks the actuating member so that the actuating member can not be moved relative to the gun housing.
  • the locking member assumes its unlocking position, the actuator is movable relative to the gun body.
  • the locking member is arranged on the front of the handle facing the liquid outlet.
  • the user grips with his hand the handle of the gun body, he can intuitively move the arranged on the front of the handle locking member from the blocking position to the unlocking position, so that the user can then move the actuator to the valve stem with an actuating force to To open the valve to apply.
  • the locking member is slidably mounted on the gun housing.
  • the locking member may be mounted linearly displaceable.
  • the locking member is pivotally mounted about a pivot axis associated with the locking member. This allows a structurally particularly simple embodiment of the valve gun.
  • the locking member associated with the pivot axis is conveniently aligned parallel to the actuating member associated with the first pivot axis.
  • the pivoting axis associated with the locking element is arranged in the upper end region of the handle or in a region of the pistol housing which is adjacent to the upper end region of the handle. If the user grasps the upper end region of the handle with his thumb and forefinger, he can simultaneously pivot the locking member from the blocking position into the unlocking position. This allows a particularly simple handling of the valve gun.
  • the locking member on an actuating arm and a locking arm, wherein the actuating arm protrudes in the blocking position of the locking member from the liquid stechniksauslass facing front of the handle and the Arret istsarm blocked in the blocking position of the locking member movement of the actuator ,
  • the locking arm may rest in the blocking position of the locking member, for example, with its free end on the actuator or occupy a small distance to the actuator so that it can not be significantly moved by the user.
  • the locking arm and the actuating arm are conveniently aligned at an angle to each other.
  • the locking member is L-shaped, wherein the actuating arm forms a first leg and the locking arm forms a second leg of the locking member.
  • valve pistol has a return spring associated with the locking member, which acts on the locking member with a restoring force in the direction of the blocking position. Does the user give that Arret michsglied free, so it automatically assumes its blocking position due to the restoring force acting on it, thus blocking movement of the actuator.
  • Figure 1 is a schematic front view of a first advantageous embodiment of a valve gun
  • Figure 2 is a sectional view of the valve gun along the line 2-2 in Figure 1;
  • Figure 3 is a sectional view corresponding to Figure 2 of a second advantageous
  • Figure 4 a sectional view corresponding to Figure 2 of a third advantageous
  • Embodiment of a valve gun Embodiment of a valve gun.
  • FIGS. 1 and 2 a first advantageous embodiment of a valve gun according to the invention is shown schematically and is generally designated by the reference numeral 10.
  • the valve gun 10 comprises a gun housing 12, which is formed by a first half-shell 14 and a second half-shell 16.
  • the gun housing 12 has an elongate housing portion 18, on whose front side 20 a liquid outlet 22 is arranged.
  • the liquid outlet 22 is designed in the form of an outlet bush 24, which carries an external thread 26.
  • a spray lance can be connected to the outlet bushing 24.
  • the handle 28 has an integral with the elongated housing portion 18 and associated with the user's thumb and forefinger. Neten upper end portion 30 and the upper end portion 30 facing away, arranged at a distance from the elongated housing portion 18 and the small finger of the user associated lower end portion 32.
  • a guard 34 extends from the lower end portion 32 of the handle 28 to the front 20 of the elongated housing portion 18. The guard 34, the elongated housing portion 18 and the handle 28 surround a handle opening 36, in which the user engages around the handle 28 with his fingers can intervene.
  • a valve 38 Adjacent to the lower end region 30 of the handle 28, a valve 38, which has a valve housing 40, is arranged in the protective bow 34.
  • the valve housing 40 has a valve inlet 42, which is integrally connected to a projecting from the protective bracket 34 inlet bushing 44.
  • the inlet bushing 44 forms a liquid inlet 46 of the valve gun 10 and carries an external thread 45.
  • a pressure hose can be connected to the inlet bushing 44, via which the valve gun 10 can be supplied with cleaning liquid which has been pressurized by a high-pressure cleaning device.
  • the through-bore 50 is aligned parallel to a longitudinal axis 51 of the outlet bushing 24 and extends into the lower end portion 32 of the handle 28 and is at its end remote from the lower end 32 by means of a sealing plug 52 tightly closed.
  • An obliquely to the through hole 50 aligned pipe socket 54 opens at a distance from the sealing plug 52 into the through hole 50 and forms a valve outlet 56 from.
  • a drain line 58 connects, which connects the valve outlet 56 with the liquid outlet 22.
  • the drain line 58 extends within the guard bracket 34th
  • the through hole 50 has a diameter constriction, which forms a valve seat 60.
  • a valve stem 62 is slidably loaded Gert, which protrudes with a free end 64 in the lower end portion 32 of the handle 28 from the through hole 50 and which is integrally connected within the through hole 50 with a closing body 66.
  • the closing body 66 is arranged in the through-bore 50 between the sealing plug 52 and the valve seat 60. By displacing the valve stem 62, the closing body 66 can be made from one shown in FIG.
  • valve stem 60 has in its immediately adjacent to the closing body 66 adjacent area a circumferential annular groove 68.
  • cleaning fluid can pass from the valve inlet 42 via the annular groove 68 and the pipe socket 54 to the valve outlet 56. If the closing body 66 assumes its closed position, the flow connection between the valve inlet 42 and the valve outlet 56 is interrupted.
  • an actuating member 70 is arranged with an actuating body 74 and a fixed to the actuating body Kraftbeetzyerungselement 80.
  • the actuating body 74 is pivotally mounted on the handle 28 about an actuating body associated with the first pivot axis 72.
  • the actuating body 74 protrudes with a contact area 76 facing away from the liquid outlet 22 from the rear side 78 of the handle 28 facing away from the liquid outlet 22.
  • the first pivot axis 72 is arranged in the lower end region 32 of the handle 28.
  • the force-applying element 80 is configured pin-shaped and arranged at a small distance from the first pivot axis 72 on the actuating body 74.
  • the actuating body 74 forms a lever arm 75, on which both the abutment region 76 and the force-applying element 80 are arranged. If the actuating body is pivoted about the first pivot axis 72 in the direction of the liquid outlet 22, the force-applying element 80 carries out a rectified movement and in this case acts on the valve tappet 62 with the actuating force.
  • the actuator body has a first end 77 associated with the thumb and forefinger of the user.
  • the distance of the force-applying element 80 from the first end 77 is significantly greater than the distance that the force-applying element 80 to the first pivot axis 72 occupies.
  • the distance of the force-applying element 80 from the first end 77 is at least four times, in particular at least six times, the distance occupied by the force-applying element 80 to the first pivot axis 72.
  • the actuator 70 is acted upon by a return spring 84 assigned to the actuator 70 with a restoring force.
  • the actuator 70 can be locked in its rest position shown in Figure 2.
  • a substantially L-shaped locking member 85 is pivotally mounted about a second pivot axis 86 associated with the locking member in the upper end region 30 of the handle 28.
  • a first leg 88 of the locking member 85 forms an actuating arm, which protrudes in the blocking position of the locking member 85 shown in Figure 2 from the liquid outlet 22 facing the front side 90 of the handle 28.
  • a second leg 92 of the locking member 85 forms a locking arm, which rests in the blocking position of the locking member 85 with a free end 94 on the actuating body 74 and prevents it from pivoting.
  • FIGS. 3 and 4 schematically show a second and a third advantageous embodiment of a valve gun according to the invention. These embodiments are designed substantially identical to the first embodiment explained above with reference to FIGS. 1 and 2. For identical components, therefore, the same reference numerals are used in Figures 3 and 4 as in Figures 1 and 2 and to avoid repetition, reference is made to the above explanations with respect to these components.
  • the second advantageous embodiment of a valve gun according to the invention shown schematically in FIG. 3 is designated overall by reference numeral 100.
  • the valve gun 100 mainly differs in that the valve 38 is disposed in the transition region between the lower end portion 32 of the handle 28 and the protective bracket 34.
  • valve outlet 56 of the valve housing 40 in the valve gun 100 occupies a position within the handle 28.
  • the valve outlet 56 is connected to the liquid outlet 22 via a discharge line 102, wherein a first section 104 of the discharge line 102 adjoining the valve outlet 56 is arranged in the handle 28.
  • the rectilinear first section 104 is adjoined angularly by a second section 106 of the discharge line 102, which is likewise rectilinear and opens into the outlet bushing 24, the second section 106 being arranged in the elongate housing region 18 of the pistol housing 12.
  • Both the first return spring 84 and the second return spring 96 are based on the valve 100 at the first portion 104 of the drain line 102.
  • the actuating member 70 of the valve gun 100 can be pivoted from the rest position shown in Figure 3 about the first pivot axis 72 in the direction of the liquid outlet 22 in a release position, wherein the Kraftbeaufschlagungselement 80 of the valve gun 100, the valve stem 62 is acted upon by an actuating force under the action the valve stem 62 is moved together with the closing body 66 in the direction of the closure plug 52, wherein the closing body 66 assumes its open position and cleaning liquid from the liquid inlet 46 to the liquid outlet 22 can flow. If the user of the valve gun 100 releases the actuating member 70, it automatically assumes its rest position under the action of the first return spring 84, and the closing body 66 is moved into its closed position by the pressurized cleaning fluid.
  • the third advantageous embodiment of a valve gun according to the invention shown schematically in FIG. 4 is designated overall by the reference numeral 120.
  • the actuator 70 has an actuator body 74 forming a one arm lever by the Kraftbeaufyerungselement 80 is disposed on the same side of the first pivot axis 72 as the abutment portion 76.
  • the actuator body 74 forms a lever arm 75 for this purpose on which the abutment region 76 and also the force application element 80 are arranged.
  • the actuating member 70 is pivoted, the force-applying element 80 is pivoted in the same direction as the abutment region 76.
  • an actuating element 122 having an actuating body 124 which has a two-armed lever formed.
  • the actuating member 122 of the valve gun 120 is pivotable about a first pivot axis 126 which is arranged between a contact area 128 of the actuating member 122 projecting from the rear side of the handle 28 and a force-applying element 130 connected to the actuating body 124.
  • the actuating body 124 has a first lever arm 129 and a second lever arm 131. At the first lever arm 129 of the contact area 128 is arranged, and the second lever arm 131, the force-applying element 130 is arranged.
  • a valve lifter 132 can be acted upon with both a compressive force and a tensile force.
  • the force-applying element 130 engages in an annular groove 134, which is arranged on the free end region of the valve tappet 132 facing the actuating body 124.
  • valve stem 132 If the actuator 122 of the valve gun 120 is pivoted about the first pivot axis 126 forward in the direction of the liquid outlet 22 in a release position from the rest position shown in Figure 4, the valve stem 132 and with this also integrally connected to the valve stem 132 closing body 136th shifted in the direction away from the plug 52 direction back, wherein the closing body 136 lifts from a valve seat 138 and thereby the flow connection between the liquid inlet 46 and the liquid outlet 22 releases.
  • valve pistols 10, 100 and 120 The handling of the valve pistols 10, 100 and 120 is done by the user with little effort.
  • the positioning of the actuators 70 and 122 contributes to the liquid outlet 22 remote from the rear side of the handle 28, since the discharge of pressurized cleaning liquid from the cleaning liquid to the valve guns 10, 100, 120 applied recoil the valve guns 10, 100 and 120th Presses against the palm of the user, so that the user's fingers are relieved.
  • To relieve the user also contributes that the actuation of the valve stem 62, 132 takes place with the actuating force of the force application elements 80, 130 at a distance from the upper end portion 30 of the handle 28, because this leads to favorable power ratios.
  • the distance between the force-applying elements 80 and 130 to the first end of the actuating body 74 and 124 facing the elongated housing area 18 is chosen to be significantly greater than the distance that the force-applying elements 80, 130 to the first pivot axis 72, 126 occupy.
  • the distance between the force-applying elements 80, 130 and the first end of the actuating body 74, 124 is at least four times as large as the distance between the force-applying elements 80, 130 and the first pivot axes 72, 126.
  • the actuators 74, 124 may be pivoted about the first pivot axes 72, 126 with relatively little force, and yet relatively large actuation forces may be exerted on the valve lifters 62, 132 by the energizers 80, 130.

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  • Mechanically-Actuated Valves (AREA)

Abstract

L'invention concerne un pistolet à soupape (10, 100, 120) destiné à un nettoyeur haute pression, comprenant un corps de pistolet (12) qui présente une poignée (28) comportant une partie d'extrémité supérieure (30) associée au pouce et à l'index de l'utilisateur et une partie d'extrémité inférieure (32) associée à l'auriculaire de l'utilisateur, ainsi qu'une soupape (38) agencée dans le corps de pistolet (12) dans le trajet d'écoulement entre une entrée de liquide (46) et une sortie de liquide (22), laquelle soupape présente un obturateur (66, 136) qui s'applique de manière étanche contre un siège de soupape (60, 138) dans une position de fermeture et qui peut être transféré dans une position d'ouverture par déplacement d'un poussoir (62, 132). La sortie de liquide (22) est située sur un côté avant (20) du corps de pistolet (12). Un organe d'actionnement (70, 22) servant à déplacer le poussoir (62, 132) est agencé sur un côté arrière (78) de la poignée (28) opposé à la sortie de liquide (22). L'invention vise à perfectionner ce pistolet à soupape (10, 100, 120) de sorte qu'il présente une structure de conception simplifiée. À cet effet, le poussoir (62, 132) peut être soumis à une force d'actionnement par l'organe d'actionnement (70, 122) dans la partie d'extrémité inférieure (32) de la poignée (28).
PCT/EP2016/060898 2016-05-13 2016-05-13 Pistolet à soupape pour nettoyeur haute pression WO2017194171A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DK16722890.7T DK3454993T3 (da) 2016-05-13 2016-05-13 Ventilpistol til en højtryksrenser
PCT/EP2016/060898 WO2017194171A1 (fr) 2016-05-13 2016-05-13 Pistolet à soupape pour nettoyeur haute pression
CN201680084677.5A CN109070108B (zh) 2016-05-13 2016-05-13 用于高压清洁设备的阀枪
EP16722890.7A EP3454993B1 (fr) 2016-05-13 2016-05-13 Pistolet à soupape pour nettoyeur haute pression

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2016/060898 WO2017194171A1 (fr) 2016-05-13 2016-05-13 Pistolet à soupape pour nettoyeur haute pression

Publications (1)

Publication Number Publication Date
WO2017194171A1 true WO2017194171A1 (fr) 2017-11-16

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PCT/EP2016/060898 WO2017194171A1 (fr) 2016-05-13 2016-05-13 Pistolet à soupape pour nettoyeur haute pression

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GB513013A (en) 1938-03-29 1939-10-02 Basil Marven Improvements in or relating to hand-controlled nozzles for the delivery of fluids or powdered material
DE2827402A1 (de) * 1978-06-22 1980-01-03 Zulauf Gmbh Giessbrause
DE3431800A1 (de) 1984-08-30 1986-03-13 Wolfgang 4800 Bielefeld Suttner Spritzpistole
DE20116060U1 (de) * 2001-09-29 2001-12-06 Metallwerke Otto Dingerkus Gmb Abgabe- und Dosierventil für fluidförmige Medien
DE60317447T2 (de) 2002-12-19 2008-09-11 Arrow Line S.R.L., Rubiera Betätigungsvorrichtung eines Sperrventils für eine Sprühpistole eines Reinigungsapparats
DE202015100240U1 (de) * 2015-01-20 2015-02-18 Kuan-Hsiung Wang Pistolendüse für Gartenarbeit
WO2015086085A1 (fr) 2013-12-12 2015-06-18 Alfred Kärcher Gmbh & Co. Kg Pistolet à valve pour appareil de nettoyage haute pression

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CN2130604Y (zh) * 1992-08-17 1993-04-28 王幸子 涂料喷枪喷涂方式直接转换阀体机构
DE102006013005A1 (de) * 2006-03-22 2007-09-27 Alfred Kärcher Gmbh & Co. Kg Hochdruckspritzpistole

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB513013A (en) 1938-03-29 1939-10-02 Basil Marven Improvements in or relating to hand-controlled nozzles for the delivery of fluids or powdered material
DE2827402A1 (de) * 1978-06-22 1980-01-03 Zulauf Gmbh Giessbrause
DE3431800A1 (de) 1984-08-30 1986-03-13 Wolfgang 4800 Bielefeld Suttner Spritzpistole
DE20116060U1 (de) * 2001-09-29 2001-12-06 Metallwerke Otto Dingerkus Gmb Abgabe- und Dosierventil für fluidförmige Medien
DE60317447T2 (de) 2002-12-19 2008-09-11 Arrow Line S.R.L., Rubiera Betätigungsvorrichtung eines Sperrventils für eine Sprühpistole eines Reinigungsapparats
WO2015086085A1 (fr) 2013-12-12 2015-06-18 Alfred Kärcher Gmbh & Co. Kg Pistolet à valve pour appareil de nettoyage haute pression
DE202015100240U1 (de) * 2015-01-20 2015-02-18 Kuan-Hsiung Wang Pistolendüse für Gartenarbeit

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CN109070108A (zh) 2018-12-21
DK3454993T3 (da) 2021-09-13
EP3454993A1 (fr) 2019-03-20
EP3454993B1 (fr) 2021-07-07

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