EP3454992B1 - Pistolet à soupape pour nettoyeur haute pression - Google Patents

Pistolet à soupape pour nettoyeur haute pression Download PDF

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Publication number
EP3454992B1
EP3454992B1 EP16722888.1A EP16722888A EP3454992B1 EP 3454992 B1 EP3454992 B1 EP 3454992B1 EP 16722888 A EP16722888 A EP 16722888A EP 3454992 B1 EP3454992 B1 EP 3454992B1
Authority
EP
European Patent Office
Prior art keywords
valve
actuating
gun
accordance
arm
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.)
Active
Application number
EP16722888.1A
Other languages
German (de)
English (en)
Other versions
EP3454992A1 (fr
Inventor
Michael Maier
Christoph Breuer
Ralph Seitter
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Alfred Kaercher SE and Co KG
Original Assignee
Alfred Kaercher SE and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by Alfred Kaercher SE and Co KG filed Critical Alfred Kaercher SE and Co KG
Publication of EP3454992A1 publication Critical patent/EP3454992A1/fr
Application granted granted Critical
Publication of EP3454992B1 publication Critical patent/EP3454992B1/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
    • 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
    • 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
    • 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 delivery of a cleaning liquid, with a gun housing that has a handle, and with a valve, which is arranged in the gun housing in the flow path between a liquid inlet and a liquid outlet and has a closing body which, in a closed position, is liquid-tight rests against a valve seat and can be moved into an open position by moving a valve tappet, and with a manually movable actuating member for moving the valve tappet, the liquid outlet being arranged on a front side of the gun housing and the actuating member having an actuating surface which is located on a rear side facing away from the liquid outlet Handle is arranged.
  • the cleaning fluid used is usually water, to which a cleaning chemical can be added.
  • a pressure hose can be connected to the liquid inlet of the valve gun. Pressurized cleaning fluid can be fed to the valve gun via the pressure hose.
  • a spray lance for example, can be connected to the liquid outlet of the valve gun. The cleaning liquid can be directed at an object via the spray lance.
  • the user can actuate an actuating member of the valve pistol and thereby open a valve arranged in the flow path between the liquid inlet and the liquid outlet.
  • the actuator is mechanically coupled to the valve lifter.
  • the valve tappet By actuating the actuating member, the valve tappet can be displaced and thereby a closing body of the valve can move out of a closed position in which it rests liquid-tight on a valve seat, are moved into an open position in which it occupies a distance from the valve seat.
  • the liquid inlet is in flow connection with the liquid outlet. If the user releases the actuating member again after an actuation, the closing body goes back from its open position into the closed position and thereby interrupts the flow connection between the liquid inlet and the liquid outlet.
  • a hand-controlled nozzle in which an actuating member is pivotably mounted on a liquid outlet and is coupled to a valve tappet via a toggle lever. This requires a not inconsiderable structural effort.
  • a valve pistol in which an actuating lever is pivotably mounted on a central region of the pistol housing.
  • the actuation lever is coupled to a release lever which, like the actuation lever, is arranged on the front of the handle facing the liquid outlet.
  • the operating lever can be operated by the user in the manner of a classic trigger lever with his fingers. If the device is operated for a long time, this can lead to fatigue for the user.
  • the handle of the valve pistol has an upper end area assigned to the thumb and forefinger of the user and a lower end area facing away from the upper end area.
  • the liquid inlet and the liquid outlet are arranged adjacent to the lower end region of the handle.
  • An actuating member in the form of a hand lever is arranged on the front of the handle facing the liquid outlet and can be actuated by the user with the fingers in the manner of a classic trigger. As already mentioned, this can lead to fatigue for the user if the device is operated for a longer period of time.
  • FIG DE 102 37 428 B3 Another valve pistol, in which an actuating member is designed in the form of a hand lever, which is arranged on the front side of the handle facing the liquid outlet, is from FIG DE 102 37 428 B3 known.
  • the document WO 2015/086085 A1 discloses a valve pistol in which the actuating member has an actuating surface which is located on the rear side of the handle facing away from the liquid outlet.
  • the arrangement of the actuating surface on the rear of the handle has the advantage that the user can actuate the actuating member with the heel of his hand, the valve pistol being pressed against the heel of the hand of the user under the influence of the recoil of the cleaning liquid emerging from the liquid outlet. This facilitates the handling of the valve gun, since the user's fingers are relieved.
  • the actuator is from the document WO 2015/086085 A1 known valve pistol coupled to the valve tappet via a coupling lever.
  • a valve gun is known with a gun housing in which a valve is arranged which has a valve tappet.
  • a release lever is pivotably mounted on its rear side, which the user can grip around with a handle of the pistol housing so that he exerts an actuating force on the release lever with the ball of his hand and swivels it from a rest position into a release position.
  • the release lever interacts via a driver with a pull rod via which the actuating force exerted by the user on the release lever can be transferred to a valve tappet, so that a closing body arranged on the valve tappet can be moved into an open position by pivoting the release lever.
  • the object of the present invention is to develop a valve pistol of the generic type in such a way that it has a simpler structural design.
  • an actuating force that the user exerts on the actuating member via the actuating surface can be transmitted from the force application element of the actuating member to the valve stem without additional mechanical coupling elements having to be used.
  • the force application element can be placed against the valve tappet.
  • the actuating force can be exerted on the valve tappet by the force application element.
  • the valve pistol according to the invention is therefore characterized by a structurally simple structure and can nevertheless be used by the user for the controlled delivery of a pressurized cleaning fluid even over long periods of actuation without great effort.
  • the actuating member has an actuating body which has the actuating surface, the actuating surface protruding from the rear of the handle in a rest position of the actuating body, and wherein the actuating body can be moved by the user with the ball of the hand into a release position, the force application element being arranged on the actuating body .
  • the force application element In the rest position, the force application element can rest loosely on the valve stem.
  • the force application element arranged on the actuating body exerts an actuating force on the valve tappet. This has the consequence that the valve tappet moves the closing body of the valve into the open position.
  • a particularly simple handling of the valve pistol is achieved in that the actuating body can be pivoted back and forth about a first pivot axis between the rest position and the release position.
  • the actuating body forms a release lever that can be pivoted by the user with the ball of the hand.
  • the actuating body has an actuating arm and a force transmission arm, the actuating arm having the actuating surface and the force transmission arm being rigidly connected to the actuating arm and pivotably mounted about the first pivot axis at its end region facing away from the actuating arm.
  • the actuating arm is at least partially arranged in the handle and the force transmission arm is arranged at least partially outside the handle in the pistol housing.
  • the valve tappet can be rigidly connected to the closing body of the valve.
  • the valve tappet is integrally connected to the closing body, so that the valve tappet together with the closing body forms a common component that can be made of metal, for example.
  • the closing body can, for example, be spherical or form a cone which is moved by the valve stem from a closed position into an open position.
  • the valve has a closing spring which acts on the closing body with a closing force in the direction of the valve seat.
  • the closing body can be operated by means of the valve stem by actuating the actuating member be moved into its open position. The movement of the closing body from the closed position into the open position thus takes place counter to the action of the closing spring and, moreover, counter to the pressure of the cleaning fluid acting on the closing body.
  • the force application element of the actuating member can be designed, 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 tappet dips with an end facing away from the closing body.
  • the force application element is connected in one piece to the actuating body. It can be provided, for example, that the force application element forms a one-piece plastic or metal part together with the actuating body.
  • the force application element forms a separate component that is held on the actuating body.
  • the force application element can for example be designed in the form of a pin which is fixed on the actuating body.
  • the force application element is held adjustably on the actuating body. This enables the force application element to be adjusted after the actuating body has been installed.
  • the force application element can, for example, be held in a sleeve-shaped receptacle of the actuating body; in particular, the force application element can be pressed or screwed into the sleeve-shaped receptacle.
  • the force application element is preferably made of metal.
  • the actuating body is designed as a plastic molded part.
  • the first pivot axis is advantageously arranged adjacent to the valve tappet. This enables particularly favorable leverage ratios to be achieved, so that the user can swivel the actuating body from the rest position into the release position with little force and nevertheless a considerable force can be exerted on the valve stem by the force application element, under the action of which the closing body moves from its closed position into its open position can be moved.
  • the first pivot axis is advantageously arranged between the liquid outlet and the force application element.
  • the actuation arm and the force transmission arm can be aligned at an angle to one another, in particular it can be provided that the actuation arm is oriented essentially at right angles to the force transmission arm.
  • the actuating arm preferably extends from the upper end area of the handle assigned to the thumb and forefinger of the user to the lower end area of the handle facing away from the upper end area of the handle.
  • the power transmission arm advantageously extends from the upper end region of the handle in the direction of the liquid outlet.
  • the force transmission arm extends from the upper end area of the handle into a front housing area of the pistol housing.
  • the force transmission arm is shorter than the actuation arm.
  • the power transmission arm is a maximum of half as long as the actuating arm.
  • the power transmission arm can be mounted on the gun housing so as to be pivotable about the first pivot axis.
  • the force transmission arm is mounted on the valve so as to be pivotable about the first pivot axis.
  • the valve has a valve housing with a valve inlet which is in flow connection with a valve outlet via a through-channel, the valve seat and the closing body being arranged in the through-channel and the valve tappet penetrating a tappet channel of the valve housing in a sealed manner and into the Immersed through channel.
  • the closing body can be arranged at the end of the valve tappet which plunges into the through-channel, and the valve tappet can protrude from the valve housing with its end facing away from the closing body.
  • the force application element of the actuating member can rest loosely on the end of the valve tappet protruding from the valve housing.
  • the liquid inlet is in flow connection with the valve inlet via an inflow line.
  • the pressurized cleaning liquid fed to the liquid inlet can be fed to the valve inlet via the inflow line.
  • At least one section of the inflow line is arranged in a protective bracket of the gun housing.
  • the handle has an upper end area assigned to the thumb and forefinger of the user and a lower end area facing away from the upper end area.
  • the protective bracket adjoins the lower end area of the handle and connects it to a front housing area of the pistol housing on which the liquid outlet is arranged.
  • a handle opening is located between the protective bar and the handle, into which the user can reach with his fingers when grasping the handle.
  • At least a section of the inflow line is arranged in the handle.
  • Such a configuration is particularly advantageous when the liquid inlet is arranged at the lower end area of the handle.
  • the inflow line can connect to the liquid inlet, at least a section of the inflow line running inside the handle.
  • valve inlet is arranged in the upper end area of the handle and the inflow line extends over its entire length within the handle.
  • valve outlet is connected to the liquid outlet via a drain line.
  • the drain line is favorably connected in one piece to the valve housing.
  • At least a section of the drain line is arranged outside the handle in the pistol housing.
  • the drainage line can extend, for example, starting from the upper end area of the handle to the front of the pistol housing.
  • the valve pistol favorably comprises a restoring spring assigned to the actuating body, which acts on the actuating body with a restoring force in the direction of the closed position.
  • a restoring spring assigned to the actuating body which acts on the actuating body with a restoring force in the direction of the closed position.
  • the user can move the actuating body from the rest position into the release position against the restoring force exerted by the restoring spring. If the user releases the actuating body, it is moved into the rest position by the return spring assigned to the actuating body.
  • the actuating body is automatically moved into its rest position due to the force exerted by the closing body of the valve via the valve stem on the force application element when the user releases the actuating body.
  • the transition of the closing body from the rest position to the open position takes place against the pressure of the cleaning fluid acting on the closing body. If the user releases the actuating body, the actuating force acting on the closing body from the actuating body via the force application element and the valve tappet does not apply and the closing body returns to its closed position under the effect of the pressure of the cleaning fluid, the closing body moving the valve tappet and this in turn exerts a restoring force on the force application element and the actuating body.
  • the valve pistol has a locking member that can be moved back and forth between a locking position and an unlocking position for locking the actuating member. With the aid of the locking member, unintentional movement of the actuating member can be prevented. If the locking member assumes its blocking position, it locks the actuating member so that the actuating member can practically not be moved relative to the gun housing. If the locking member is in its unlocking position, the actuating member can be moved relative to the gun housing.
  • the locking member is arranged on the front of the handle facing the liquid outlet. If the user grasps the handle of the pistol housing with his hand, he can intuitively move the locking member arranged on the front of the handle from the locking position to the unlocking position, so that he can then move the actuating member to open the valve stem with an actuating force to pressurize the valve.
  • the locking member is slidably mounted on the gun housing.
  • the locking member can be mounted so as to be linearly displaceable.
  • the locking member is mounted pivotably about a pivot axis assigned to the locking member. This enables a structurally simple design of the valve pistol.
  • the pivot axis assigned to the locking member is advantageously aligned parallel to the first pivot axis assigned to the actuating body.
  • the pivot axis assigned to the locking member is arranged in the upper end area of the handle or in an area of the pistol housing adjacent to the upper end area of the handle. If the user grasps the upper end area of the handle with his thumb and forefinger, he can simultaneously pivot the locking member from the locking position into the unlocking position. This enables particularly simple handling of the valve pistol.
  • the locking member has an operating arm and a locking arm, the operating arm protruding from the front of the handle facing the liquid outlet in the locking position of the locking member and the locking arm blocking a movement of the actuating member in the locking position of the locking member.
  • the locking arm In the locking position of the locking member, the locking arm can, for example, rest with its free end on the actuating member or occupy a small distance from the actuating member so that the user cannot noticeably move it.
  • the locking arm releases the actuating member so that it can be pivoted from the rest position into the release position by the user.
  • the locking arm and the operating arm are favorably aligned at an angle to one another.
  • the locking member is L-shaped, the operating arm forming a first leg and the locking arm forming a second leg of the locking member.
  • valve pistol has a return spring which is assigned to the locking element and which acts on the locking element with a restoring force in the direction of the blocking position. If the user releases the locking member, it takes it because of the forces acting on him Restoring force automatically enters its locking position and thus blocks movement of the actuator.
  • valve pistol 10 comprises a pistol housing 12 which is formed by a first half-shell 14 and a second half-shell 16.
  • the gun housing 12 has an elongated housing area 18, on the front side 20 of which a liquid outlet 22 is arranged.
  • the liquid outlet 22 is designed in the form of an outlet bushing 24 which has an external thread 26.
  • a spray lance for example, can be connected to the outlet socket 24.
  • a handle 28 protrudes from the elongated housing area 18, which the user can grip around with his hand.
  • the handle 28 has an upper end area 30 connected in one piece with the elongated housing area 18 and assigned to the thumb and forefinger of the user and an upper end area 30 facing away from the upper end area 30, in the At a distance from the elongated housing area 18 and the lower end area 32 assigned to the little finger of the user.
  • a protective bracket 34 adjoins the lower end area 32 and extends from the lower end area 32 of the handle 28 to the front side 20 of the elongated housing area 18.
  • the protective bracket 34, the elongated housing area 18 and the handle 28 surround a handle opening 36 into which the user can reach with his fingers when grasping the handle 28.
  • a valve 38 which has a valve housing 40, is arranged adjacent to the front side 20 in the elongated housing region 18.
  • the valve housing 40 has a valve inlet 42 which is connected via an inflow line 44 running inside the protective bracket 34 to an inlet bushing 46 protruding from the protective bracket 34.
  • the inlet socket 46 forms a liquid inlet 48 of the valve gun 10 and has an external thread 50.
  • a pressure hose can be connected to the inlet socket 46, via which the valve gun 10 can be supplied with cleaning liquid that has been pressurized by a high-pressure cleaning device.
  • valve inlet 42 is in flow connection with a valve outlet 54 of the valve housing 40 via a passage 52.
  • valve outlet 54 is integrally connected to the outlet bushing 24 protruding from the front side 20 of the gun housing 12.
  • the through channel 52 has a first channel section 56 in which a valve seat 58 and a spherical closing body 60 of the valve 38 are arranged.
  • the closing body 60 is pressed by a closing spring 62 with a closing force in the direction of the valve seat 58, so that it rests against the valve seat 58 in a liquid-tight manner in a closed position.
  • a second channel section 64 of the through-channel 52 adjoins the first channel section 56 at an angle of approximately 90 °.
  • the second channel section 64 extends as far as the valve outlet 54.
  • the valve housing 40 has a tappet channel 66 which is aligned with the first channel section 56 and is penetrated by a valve tappet 68.
  • the valve tappet 68 is surrounded within the tappet channel 66 by a sealing element which is known per se and is therefore not shown in the drawing to achieve a better overview, and is held displaceably in the tappet channel 66.
  • the valve tappet 68 dips into the through channel 52.
  • the closing body 60 is arranged at the end of the valve tappet 68 which extends into the through-channel 52. With its end facing away from the closing body 60, the valve tappet 68 protrudes from the valve housing 40.
  • the valve pistol 10 has an actuating member 70 with an essentially L-shaped actuating body 72 and a force application element 74 held adjustably on the actuating body 72.
  • the actuating body 72 has an actuating arm 76 and a force transmission arm 78 rigidly connected to this and directly adjoining it, which is oriented essentially at right angles to the actuating arm 76.
  • the actuating arm 76 is arranged in the handle 28, wherein it extends from the lower end region 32 of the handle 28 to the upper end region 30 of the handle 28.
  • the power transmission arm 78 is arranged in the elongated housing area 18 of the pistol housing 12 and extends from the upper end area 30 of the handle 28 into a front housing area 80 of the pistol housing 12.
  • the front housing area 80 forms the front side 20 of the pistol housing 12.
  • the actuating arm 76 has an actuating surface 82 which protrudes from the rear side 84 of the handle 28 facing away from the liquid outlet 22 and against which the user can place his palm when he grasps the handle 28.
  • the force transmission arm 78 is pivotable about a first pivot axis 88 on the valve housing 40 stored.
  • the first pivot axis 88 is arranged adjacent to the valve tappet 68. The distance that the first pivot axis 88 occupies from the end of the valve tappet 68 protruding from the valve housing 40 is smaller than the length of the valve tappet 68.
  • the force application element 74 is adjustably held on the force transmission arm at a small distance from the first pivot axis 88.
  • the first pivot axis 88 is arranged between the liquid outlet 22 and the force application element 74.
  • the force application element 74 assumes a position between the first pivot axis 88 and the actuating arm 76.
  • the actuating body 72 can, against the restoring force of a restoring spring 90 assigned to the actuating body 72, from the position shown in FIG Figure 2 rest position shown about the first pivot axis 88 (in Figure 2 clockwise) can be pivoted into a release position, the actuating arm 76 dipping into the handle 28 and the valve tappet 68 being moved in the direction of the first channel section 56 of the through-channel 52 due to the actuating force acting on it from the force application element 74.
  • This has the consequence that the closing body 60 lifts off the valve seat 58 against the restoring force of the closing spring 62 acting on it and assumes an open position.
  • the actuator 70 can in its in Figure 2 shown rest position are locked.
  • an essentially L-shaped locking member 92 is mounted such that it can pivot about a second pivot axis 94 assigned to the locking member 92.
  • a first leg of the locking member 92 forms an operating arm 96 which, in the manner shown in FIG Figure 2
  • the illustrated locking position of the locking member 92 protrudes from the front side 98 of the handle 28 facing the liquid outlet 22.
  • a second leg of the locking member 92 forms a locking arm 100 which, in the locking position of the locking member 92, rests with its free end 102 on the actuating body 72 and prevents it from pivoting.
  • valve tappet 68 When pivoting from the rest position into the release position, the valve tappet 68 is, as already mentioned, displaced by the force application element 74 so far that the closing body 60 establishes the flow connection between the valve inlet 42 and the valve outlet 54 and thus also the flow connection between the liquid inlet 48 and the liquid outlet 22 releases. If the user releases the actuating body 72 again, it is pivoted back into the rest position by the first return spring 90, in which the closing body 60, as explained above, assumes its closed position and thereby interrupts the flow connection between the liquid inlet 48 and the liquid outlet 22.
  • FIGS 3 and 4th a second and a third advantageous embodiment of a valve gun according to the invention are shown schematically. These embodiments are largely identical to the above with reference to FIG Figures 1 and 2 illustrated first embodiment.
  • the Figures 3 and 4th the same reference numerals are used as in Figures 1 and 2 , and to avoid repetition, reference is made to the explanations given above with regard to these components.
  • valve gun 120 The illustrated second advantageous embodiment of a valve pistol according to the invention is denoted overall by the reference numeral 120. It differs from that in the Figures 1 and 2 valve gun 10 shown in that the gun housing 12 does not have a protective bracket 34. In the case of the valve gun 120, the inflow line 44 of the valve gun 10 is therefore omitted.
  • the valve inlet 42 is integrally connected to the inlet bushing 46, which forms the liquid inlet 48.
  • the inlet bushing 46 protrudes from a holding stub 124 of the pistol housing 12 of the valve pistol 120 that is integrally formed on an underside 122 of the elongated housing region 18.
  • valve pistol 10 Another difference to the valve pistol 10 is that the actuating member 70 of the valve pistol 120 has an actuating body 125 with an actuating arm 127 and a force transmission arm 126, the Force transmission arm 126 is integrally connected to a force application element 128.
  • valve pistol 120 the user can actuate the actuating member 70 with the ball of his hand, the force application element 128 resting loosely on the valve stem 68 and the valve stem 68 being displaced by pivoting the actuating member 70 about the first pivot axis 88 to open the valve 38.
  • valve pistol 140 which is shown schematically, is designated as a whole by the reference numeral 140. It differs from that in the Figures 1 and 2 valve gun 10 illustrated in that it has a liquid inlet 142 which is arranged at the lower end region 32 of the handle 28. Via an inflow line 144, the liquid inlet 142 is in flow connection with a valve inlet 146 of a valve housing 148, which is arranged in the upper end region 30 of the handle 28 and whose valve outlet 150 is connected to an outflow line 152, via which the valve outlet 150 with a liquid outlet 154 of the valve gun 140 is in flow communication.
  • the liquid outlet 154 of the valve gun 140 is also arranged on the front side 20 of the gun housing 12.
  • the drain line 152 is connected in one piece to the valve housing 148.
  • the drain line could also be configured as a separate component that is connected to the valve housing 148 in a liquid-tight manner.
  • the outlet socket can be connected as a separate component to the end of the drain line 152 facing away from the valve housing 148.
  • the actuating member 70 of the valve pistol 140 has an actuating body 158 and a force application element 160 fixed on the actuating body 158.
  • the actuating body 158 is L-shaped and has an actuating arm 162 and a force transmission arm 164.
  • the actuating arm 162 has a protruding on the rear side 84 of the handle 28 Actuating surface 166 and is rigidly and integrally connected to the force transmission arm 164.
  • the actuating arm 162 extends from the lower end region 32 of the handle 28 to the upper end region 30 of the handle 28.
  • the power transmission arm 164 adjoins the actuating arm 162 in the upper end region 30, although it is designed significantly shorter than the actuating arm 162 the free end facing away from the actuating arm 162, the force transmission arm 164 is mounted on the valve housing 148 so as to be pivotable about a first pivot axis 168.
  • the handle 28 of the valve pistol 140 can also be grasped by the user with his hand, whereby he can place his palm on the actuating surface 166 of the actuating body 158 in order to remove it from the position shown in FIG Figure 4 to pivot the rest position shown about the first pivot axis 168 into a release position.
  • the force applying element 160 exerts an actuating force on the valve tappet 68 of the valve pistol 140, so that the valve tappet 68 is displaced and the closing body 60 of the valve pistol 140 is moved from its closed position into its open position, as described above with reference to FIG Valve gun 10 has been explained in detail.
  • valve pistols 10, 120 and 140 are characterized by a simple structural design and can be operated by the user in a simple manner and with practically no fatigue.

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  • Nozzles (AREA)

Claims (21)

  1. Pistolet à soupape pour un appareil de nettoyage haute pression pour la distribution contrôlée d'un liquide de nettoyage, avec un boîtier de pistolet (12), qui présente une poignée (28), et avec une soupape (38) disposée dans le boîtier de pistolet (12) dans la voie d'écoulement entre une entrée de liquide (48, 142) et une sortie de liquide (22, 154), qui présente un corps de fermeture (60), qui, dans une position de fermeture, s'applique de manière étanche au liquide contre un siège de soupape (58) et peut se mouvoir dans une position d'ouverture par coulissement d'un poussoir de soupape (68), et avec un organe d'actionnement (70) mobile manuellement pour le déplacement du poussoir de soupape (68), dans lequel la sortie de liquide (22, 154) est disposée sur une face avant (20) du boîtier de pistolet (12) et l'organe d'actionnement (70) présente une surface d'actionnement (82, 166), qui est disposée sur une face arrière (84) de la poignée (28) opposée à la sortie de liquide (22, 154), dans lequel l'organe d'actionnement (70) présente un élément de soumission à une force (74, 128, 160) pouvant être placé sur le poussoir de soupape (68), et dans lequel l'organe d'actionnement (70) présente un corps d'actionnement (72, 125, 158), qui peut pivoter en va-et-vient autour d'un premier axe de pivotement (88, 168) entre une position de repos et une position de libération et qui présente la surface d'actionnement (82, 166), dans lequel la surface d'actionnement (82, 166), dans la position de repos du corps d'actionnement (72, 125, 158), fait saillie de la face arrière (84) de la poignée (28) et le corps d'actionnement (72, 125, 158) peut être mû par l'utilisateur dans la position de libération avec l'éminence sur la paume de la main, caractérisé en ce que l'élément de soumission à une force (74, 128, 160) est disposé sur le corps d'actionnement (72, 125, 158) et le corps d'actionnement (72, 125, 158) présente un bras d'actionnement (76, 127, 162) et un bras de transmission de force (78, 126, 164), dans lequel le bras d'actionnement (76, 127, 162) présente la surface d'actionnement (82, 166) et le bras de transmission de force (78, 126, 124) est relié rigidement au bras d'actionnement (76, 127, 162) et est monté sur sa zone d'extrémité opposée au bras d'actionnement (76, 127, 162) de manière à pouvoir pivoter autour du premier axe de pivotement (88, 168), dans lequel le bras d'actionnement (76, 127, 162) est disposé au moins par endroits dans la poignée (28) et dans lequel le bras de transmission de force (78, 126, 164) est disposé au moins par endroits à l'extérieur de la poignée (28) dans le boîtier de pistolet (12) .
  2. Pistolet à soupape selon la revendication 1, caractérisé en ce que l'élément de soumission à une force (128) est relié d'une seule pièce au corps d'actionnement (125) .
  3. Pistolet à soupape selon la revendication 1, caractérisé en ce que l'élément de soumission à une force (74, 160) réalise un composant séparé, qui est retenu sur le corps d'actionnement (72, 158).
  4. Pistolet à soupape selon la revendication 1 ou 3, caractérisé en ce que l'élément de soumission à une force (74) est retenu sur le corps d'actionnement (72) avec possibilité de réglage.
  5. Pistolet à soupape selon l'une quelconque des revendications précédentes, caractérisé en ce que le premier axe de pivotement (88, 168) est disposé au voisinage du poussoir de soupape (68).
  6. Pistolet à soupape selon l'une quelconque des revendications précédentes, caractérisé en ce que le premier axe de pivotement (88, 168) est disposé entre la sortie de liquide (22, 154) et l'élément de soumission à une force (74, 128, 160).
  7. Pistolet à soupape selon l'une quelconque des revendications précédentes, caractérisé en ce que le bras de transmission de force (164) est plus court que le bras d'actionnement (162).
  8. Pistolet à soupape selon l'une quelconque des revendications précédentes, caractérisé en ce que le bras de transmission de force (78, 126, 164) est monté sur la soupape (38) de manière à pouvoir pivoter autour du premier axe de pivotement (88, 168).
  9. Pistolet à soupape selon l'une quelconque des revendications précédentes, caractérisé en ce que la soupape (38) présente un carter de soupape (40, 148) avec une entrée de soupape (42, 146), qui est en liaison fluidique avec une sortie de soupape (54, 150) par l'intermédiaire d'un canal de passage (52), dans lequel le siège de soupape (58) et le corps de fermeture (60) sont disposés dans le canal de passage (52) et le poussoir de soupape (68) traverse un canal de poussoir (66) de manière étanchéifiée et s'enfonce dans le canal de passage (52).
  10. Pistolet à soupape selon la revendication 9, caractérisé en ce que l'entrée de liquide (48, 142) est en liaison fluidique avec l'entrée de soupape (42, 146) par l'intermédiaire d'une conduite d'admission (44, 144).
  11. Pistolet à soupape selon la revendication 10, caractérisé en ce qu'au moins une partie de la conduite d'admission (44) est disposée dans un étrier de protection (34).
  12. Pistolet à soupape selon la revendication 10, caractérisé en ce qu'au moins une partie de la conduite d'admission (144) est disposée dans la poignée (28).
  13. Pistolet à soupape selon l'une quelconque des revendications 9 à 12, caractérisé en ce que la sortie de soupape (150) est en liaison fluidique avec la sortie de liquide (154) par l'intermédiaire d'une conduite d'évacuation (152).
  14. Pistolet à soupape selon la revendication 13, caractérisé en ce que la conduite d'évacuation (152) est reliée d'une seule pièce au carter de soupape (148).
  15. Pistolet à soupape selon la revendication 13 ou 14, caractérisé en ce qu'au moins une partie de la conduite d'évacuation (152) est disposée à l'extérieur de la poignée (28) dans le boîtier de pistolet (12).
  16. Pistolet à soupape selon l'une quelconque des revendications précédentes, caractérisé en ce que le pistolet à soupape (10, 120, 140) présente un organe d'arrêt (92) mobile en va-et-vient entre une position de blocage et une position de déblocage pour l'arrêt de l'organe d'actionnement (70).
  17. Pistolet à soupape selon la revendication 16, caractérisé en ce que l'organe d'arrêt (92) est disposé sur la face avant (98) de la poignée (28) tournée vers la sortie de liquide (22, 154).
  18. Pistolet à soupape selon la revendication 16 ou 17, caractérisé en ce que l'organe d'arrêt (92) est monté de manière à pouvoir pivoter autour d'un axe de pivotement (94) associé à l'organe d'arrêt (92).
  19. Pistolet à soupape selon la revendication 18, caractérisé en ce que l'axe de pivotement (94) associé à l'organe d'arrêt (92) est disposé dans la zone d'extrémité supérieure (30) de la poignée (28) ou dans une zone du boîtier de pistolet (12) voisine de la zone d'extrémité supérieure (30) de la poignée (28).
  20. Pistolet à soupape selon l'une quelconque des revendications 16 à 19, caractérisé en ce que l'organe d'arrêt (92) présente un bras de commande (96) et un bras d'arrêt (100), dans lequel le bras de commande (96), dans une position de blocage de l'organe d'arrêt (92), fait saillie de la face avant (98) de la poignée (28) tournée vers la sortie de liquide (22, 154) et le bras d'arrêt (100), dans la position de blocage de l'organe d'arrêt (92), empêche un mouvement de l'organe d'actionnement (70) .
  21. Pistolet à soupape selon l'une quelconque des revendications 16 à 20, caractérisé en ce que le pistolet à soupape (10, 120, 140) présente un ressort de rappel (104) associé à l'organe d'arrêt (92), qui soumet l'organe d'arrêt (92) à une force de rappel en direction de la position de blocage.
EP16722888.1A 2016-05-13 2016-05-13 Pistolet à soupape pour nettoyeur haute pression Active EP3454992B1 (fr)

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Application Number Priority Date Filing Date Title
PCT/EP2016/060895 WO2017194169A1 (fr) 2016-05-13 2016-05-13 Pistolet à soupape pour nettoyeur haute pression

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EP3454992B1 true EP3454992B1 (fr) 2021-07-07

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CN (1) CN109070107B (fr)
DK (1) DK3454992T3 (fr)
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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
DE3431800A1 (de) 1984-08-30 1986-03-13 Wolfgang 4800 Bielefeld Suttner Spritzpistole
DE10159680C1 (de) 2001-11-30 2003-05-08 Kaercher Gmbh & Co Alfred Schließvorrichtung für die Flüssigkeitsabgabeleitung eines Hochdruckreinigungsgerätes
ITRE20020039U1 (it) 2002-12-19 2004-06-20 Arrow Line Srl Meccanisco d'azionamento di una valvola di intercettazione per pistole da lavaggio di apparecchiature idropulitrici
US20090224073A1 (en) * 2008-03-04 2009-09-10 Pai-Chou Hsieh Multi-purpose sprayer gun
EP2922637B1 (fr) * 2012-11-21 2017-10-04 Alfred Kärcher GmbH & Co. KG Pistolet de pulvérisation à haute pression
US20150028134A1 (en) * 2013-07-23 2015-01-29 Ruey Ryh Enterprise Co., Ltd. Gardening Gun Structure
CN103406224B (zh) * 2013-08-01 2015-10-21 宁波大叶园林科技有限公司 一种防冻的远端止水的水枪
CN105813763B (zh) 2013-12-12 2018-11-13 阿尔弗雷德·凯驰两合公司 用于高压清洁设备的阀枪

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Publication number Publication date
CN109070107B (zh) 2021-05-11
DK3454992T3 (da) 2021-09-20
WO2017194169A1 (fr) 2017-11-16
CN109070107A (zh) 2018-12-21
WO2017194169A9 (fr) 2018-01-04
EP3454992A1 (fr) 2019-03-20

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