EP0901834B1 - Handabschaltpistole für Hochdruckreinigungsgeräte - Google Patents
Handabschaltpistole für Hochdruckreinigungsgeräte Download PDFInfo
- Publication number
- EP0901834B1 EP0901834B1 EP98116919A EP98116919A EP0901834B1 EP 0901834 B1 EP0901834 B1 EP 0901834B1 EP 98116919 A EP98116919 A EP 98116919A EP 98116919 A EP98116919 A EP 98116919A EP 0901834 B1 EP0901834 B1 EP 0901834B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- high pressure
- gun
- shut
- cleaning equipment
- equipment according
- 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
Links
- 238000004140 cleaning Methods 0.000 title claims description 14
- 210000002445 nipple Anatomy 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 3
- 241000722921 Tulipa gesneriana Species 0.000 claims 1
- 230000002093 peripheral effect Effects 0.000 claims 1
- 239000007921 spray Substances 0.000 description 10
- 239000007788 liquid Substances 0.000 description 6
- 239000003973 paint Substances 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 210000004907 gland Anatomy 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 239000000565 sealant Substances 0.000 description 2
- 229910000760 Hardened steel Inorganic materials 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Images
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
- B05B12/002—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 manual shut-off gun for High pressure cleaning devices according to the generic term of Claim 1.
- Such manual shut-off pistols are used to the of high pressure medium generated in a pressure washer controlled in feed a spray tube at its free, front end a high pressure nozzle is arranged.
- the aim is that a relatively sensitive actuation of the shutdown device is achieved, which is very difficult to achieve. Due to the cramped installation conditions in the housing of the manual shut-off gun for the installation of such a shutdown device mostly no satisfactory, sensitive shutdown or Actuation reached. It depends on one the greatest possible valve lift of the shut-off valve ensure the valve ball that the flow regulated, as far as possible from their valve seat can.
- the Flow resistance and the pressure drop upstream and be kept as low as possible downstream of the valve ball should, and also the actuation force for the Actuation lever should be as small as possible, with a relatively large one Actuation path to enable sensitive regulation.
- the pulling force is the pulling force you have to apply in order to lift the ball from the seat, it should be as small as possible, as well as the holding force required to hold the Hold the operating lever in its open position.
- DE 296 12 979 U1 describes one Manual spray gun for a high pressure cleaning device with one Housing into which a liquid line opens, the with a central unit comprising a closing valve detachable, sealed nipple-sleeve insertion connection is received, with engaging on a projection of the liquid line Means for axially fixing the liquid line relatively to the central unit and with a distance to Junction of the central unit and the Liquid line arranged, the liquid line surrounding opening in the housing.
- the US 3,000,576 describes a spray gun for paints and Like. more, and in particular a spray gun for hydraulic atomization and the application of paint and others Liquids.
- a spray gun that works under high pressure
- spray guns there are completely different ones Requirements than with spray guns of high pressure cleaners.
- a major problem with such spray guns for Color application lies in the exact quantity regulation for the color to be applied, so that the user an optimal Result achieved for the color application. This lies between not covering paint and too much paint, so that the color begins to run after the application.
- this manual shut-off gun is also not by inserting the HP hose into the handle sufficiently balanced, which makes handling difficult and thus leads to faster fatigue of the user.
- the kink protection is also in the manual shut-off gun imported HD hoses are not optimal, because of the Entrance area of the housing no corresponding constructive Features, and thus an additional kink protection must exist outside the gun.
- the present invention is therefore based on the object a manual shut-off gun of the type mentioned above to further train that the above claims account the risk of injury to the user is minimized will, the handling, maintenance and repair of the Manual shut-off gun is facilitated and the Susceptibility to wear of the inserted HD hose improved kink protection is reduced.
- the invention is characterized in that the Shut-off valve device in one axis with the inlet duct is arranged for the introduced high pressure medium, where the outlet channel, downstream of the shut-off valve device, in continues at an angle to the axis of the inlet duct.
- the shut-off valve device and the high-pressure hose connected to it coaxially are arranged at approximately the same height as the actuating lever in front of it.
- This has the advantage that the pivot point of the pivot bearing of the actuating lever can be placed in the upper, outer and front end of the housing of the manual shut-off gun, in order to achieve the largest possible actuation path for the actuating lever.
- the operating lever has a relatively long handle, which is far from
- Pivot point is removed. This can result in a large Actuation path can be worked with low force.
- the hereby achieved transmission ratio leads to a very low pull-off force (approx. 4 Kp) and a low holding force of approx. 2 Kp.
- the high-pressure hose is thus inserted into the housing shell at approximately the same height and parallel to the actuating lever and connected to the inlet channel, which results in particularly short connection paths between the high-pressure hose and the shut-off valve device.
- the wearing parts namely the valve element, such as valve seat, valve ball, actuating bolt and the like, can be easily accessed and replaced by unscrewing the HP hose without having to disassemble the gun.
- this manual shut-off gun in hot water cleaning devices there is the additional advantage that when the hot water is introduced, beyond the actuating lever and beyond the handle, the entire housing shell does not heat up very much in the area of the handle.
- the actuating lever is designed as a two-armed lever, the handle being relatively long and the power lever relatively short are trained.
- the power lever preferably has one Metal insert, which acts on the valve lifter, the can be moved axially. So the valve tappet can can be moved with great force.
- the proposed arrangement gives the High pressure components a compact valve body; the very is easy to manufacture because it is Shut-off valve device in a particularly favorable manner this valve body is integrated.
- Downstream shutoff valve means can be known Way a pressure-volume control can be arranged.
- a pressure-volume control can be arranged.
- a cross-section through a is schematized in the figure Manual shut-off gun shown after the innovation.
- the manual shut-off gun essentially consists of two similar housing shells 5 together, in Figure 1, For a better overview, only one of the housing shells 5 is shown.
- the two housing shells 5 define an in closed housing, which consists essentially of a Rear wall 7, from a front wall 6, from a bottom wall 8 and consists of an end wall 9.
- a kink protection sleeve 2 is arranged outside the housing, which is part of an anti-kink device, by means of which the high-pressure hose 4 is protected against kinking to the manual shut-off gun to be led.
- the kink protection sleeve 2 and the high pressure hose 4 are in the amount of the actuating lever 15 and arranged in front of this.
- This kink protection device consists in essentially from a lower, tulip-shaped outward opening receiving opening 3, into which the high-pressure hose 4th is introduced by means of a press sleeve 20 on a Approach of a press-in nipple 18 is kept sealing.
- a fastening nut 19 is fixed in the anti-kink sleeve 2 arranged that secured against rotation with an associated pin is held locked in the anti-kink sleeve 2.
- An inlet channel 41 provided in the press-in nipple 18 for the High-pressure medium opens into a socket 17 via a shoulder, which as a separate nut part in the valve body 36 is screwed in.
- This socket 17 forms the lower part of the Shut-off valve device 10.
- the socket 17 takes one Compression spring 16, the other end of which is on a valve ball 11 supports, which in turn is held in a valve seat 12 becomes.
- a valve tappet 13 presses on the valve ball 11 is guided sealed in a bore of the valve body 36 and its upper free end through a guide bush 14 is performed, which is a corresponding for sealing Gland and O-rings. That way avoided that the high pressure medium from this guide channel of Valve tappet 13 penetrates to the outside.
- the operating lever 15 of the Handabschaltpistole 1 consists of two parts, one of which Part is relatively long and is designed as a handle 38, and the other part is relatively short and the above Power lever 37 forms.
- This two-armed operating lever 15 is pivotally mounted in a pivot bearing 33.
- the operating lever includes a return spring which pulls the lever 15 in maintains its rest position (valve closed).
- the power lever 37 acts with its Metal insert on the upper end of the valve lifter 13, which thereby moving in the axial direction and the valve ball 11 stands out from its valve seat 12. This will make the High pressure channel released and the high pressure medium flows from the interior of the high pressure hose via the inlet duct 41 and the now open valve seat 12 into the outlet channel 30, So downstream of the total designated 10 Shutoff.
- the pressure quantity regulation 21 Downstream of this shutdown device 10 is the pressure quantity regulation 21 arranged, which consists essentially of a valve stem 22 which is in a valve body bore 34 is arranged rotatably.
- the valve body bore 34 penetrates the high pressure channel in the transverse direction and - advantageously for better operation - is the longitudinal axis of the Valve stem 22 approximately perpendicular to the axis of the outlet chamber 31 arranged, in which the high pressure spray tube is arranged. In this way it is ensured that the Control device for pressure and volume regulation 21 is arranged approximately perpendicular to the axis of the spray tube in order to achieve good activity.
- the actuating device of the pressure and quantity regulation 21 consists of a rotary knob 26, which rotatably with a Fastening screw 23 is connected, which in turn is rotatably connected to the valve stem 22 It is a inside cover cap 25 is provided, which compared to the rotatable knob 26 is fixed and are arranged on the corresponding setting symbols can, with an assigned setting mark on the rotary knob 26 cooperate. Otherwise, the rotary knob 26 is on one Adjustment ring 24 rotatably mounted and secured against lifting.
- valve stem 22 is in the upper part of the valve body 36 sealed by means of a stuffing box 27 and has beyond Stuffing box an annular collar 35 of larger radial diameter on that as a stop for the stuffing box 27 and at the same time as an axial displacement protection of the Valve stem 22 is used.
- a first O-ring 28 arranged, which seals the high pressure channel 30 upwards, and a second O-ring. 28 'down the high pressure duct seals off.
- the valve stem is now in the area of the High-pressure channel 30 penetrated by a through hole 29, that works like a valve plug. Depending on the rotation of the Valve stem 22 is thus the passage through the outlet channel 30 more or less opened in the outlet chamber 31.
Landscapes
- Cleaning By Liquid Or Steam (AREA)
- Cleaning In General (AREA)
- Mechanically-Actuated Valves (AREA)
- Nozzles (AREA)
- Details Or Accessories Of Spraying Plant Or Apparatus (AREA)
Description
Erfahrungsgemäß hat sich gezeigt, daß die größte Baulänge immer dann beansprucht wird, oder notwendig ist, wenn der Hochdruckschlauch mit einer entsprechenden Verschraubung an die Handabschaltpistole angesetzt wird.
Damit besteht der Vorteil, daß der Drehpunkt des Schwenklagers des Betätigungshebels in das möglichst obere, äußere und vordere Ende des Gehäuses der Handabschaltpistole gelegt werden kann, um einen möglichst großen Betätigungsweg für den Betätigungshebel zu erreichen. Der Betätigungshebel hat eine verhältnismäßig lange Handhabe, die weit vom
Bei der Verwendung dieser Handabschaltpistole in Heißwasserreinigungsgeräten besteht im übrigen der Vorteil, daß sich bei Einleitung des Heißwassers, jenseits des Betätigungshebels und jenseits des Griffstückes, die gesamte Gehäuseschale im Bereich des Griffstücks nicht sehr stark aufheizt.
- 1.
- Handabschaltpistole
- 2.
- Knickschutzhülse
- 3.
- Aufnahmeöffnung
- 4.
- HD-Schlauch
- 5.
- Gehäuseschale
- 6.
- Vorderwand
- 7
- Rückwand
- 8.
- Bodenwand
- 9.
- Stirnwand
- 10.
- Abschaltventileinrichtung
- 11.
- Ventilkugel
- 12.
- Ventilsitz
- 13.
- Ventilstößel
- 14.
- Führungsbuchse
- 15.
- Betätigungshebel
- 16.
- Druckfeder
- 17.
- Buchse
- 18.
- Einpreßnippel
- 19.
- Befestigungsmutter
- 20.
- Preßhülse
- 21.
- Druck- und Mengenregulierung
- 22.
- Ventilschaft
- 23.
- Befestigungsschraube
- 24.
- Einstellring
- 25.
- Abdeckkappe
- 26.
- Drehknopf
- 27.
- Stopfbuchse
- 28.
- O-Ring
- 29.
- Durchgangsbohrung
- 30.
- Auslaßkanal
- 31.
- Auslaßkammer
- 32.
- Nut
- 33.
- Schwenklager
- 34.
- Ventilkörperbohrung
- 35.
- Ringbund
- 36.
- Ventilkörper
- 37.
- Krafthebel
- 38.
- Handhabe
- 39.
- Dichtungsmittel
- 40.
- Dichtungsmittel
- 41.
- Einlaßkanal
- 42.
- Rückstellfeder
Claims (10)
- Handabschaltpistole für Hochdruckreinigungsgeräte mit einer Abschaltventileinrichtung die von einem Betätigungshebel betätigt wird und in welche das Hochdruckmedium über einen Einlaßkanal eingeleitet wird und diese über einen Auslaßkanal verläßt, wobei der Hochdruckschlauch (4) nicht in das Griffstück der Handabschaltpistole (1), sondern unter Umgehung des Griffstücks in das Gehäuse (5) eingeleitet wird, dadurch gekennzeichnet, daß außerhalb des Gehäuses (5) eine abnehmbare Knickschutzeinrichtung vorgesehen ist, die im wesentlichen aus einer den Hochdruckschlauch (4) umgebenden Knickschutzhülse (2), einer Preßhülse (20) und einem Einpreßnippel (18) besteht, wobei der Hochdruckschlauch (4) innerhalb der Knickschutzhülse (2) mittels der Preßhülse (20) auf dem Einpreßnippel (18) dichtend gehalten wird.
- Handabschaltpistole für Hochdruckreinigungsgeräte nach Anspruch 1, dadurch gekennzeichnet, daß der Hochdruckschlauch (4) vor dem Handstück in das Gehäuse (5) auf der Seite, welche der Auslaßkammer (31) zugewandt ist, eingebracht wird.
- Handabschaltpistole für Hochdruckreinigungsgeräte nach Anspruch 2, dadurch gekennzeichnet, daß der Hochdruckschlauch (4) im wesentlichen parallel zur Handhabe (38) des Betätigungshebels (15) in das Gehäuse (5) eingebracht wird.
- Handabschaltpistole für Hochdruckreinigungsgeräte nach einem der Ansprüche 2 oder 3, dadurch gekennzeichnet, daß der Hochdruckschlauch (4) von unten her in das Gehäuse (5) der Handabschaltpistole (1) eingebracht wird.
- Handabschaltpistole für Hochdruckreinigungsgeräte nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die den Hochdruckschlauch (4) umgebende Knickschutzhülse (2) im Eintrittsbereich des Hochdruckschlauchs (4) eine sich tulpenförmig nach außen öffnende Aufnahmeöffnung (3) aufweist.
- Handabschaltpistole für Hochdruckreinigungsgeräte nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß innerhalb der Knickschutzhülse (2) eine Befestigungsmutter (19) fest angeordnet ist.
- Handabschaltpistole für Hochdruckreinigungsgeräte nach Anspruch 6, dadurch gekennzeichnet, daß die Befestigungsmutter (19) in der Knickschutzhülse (2) mit einem zugeordneten Stift drehgesichert arretiert ist.
- Handabschaltpistole für Hochdruckreinigungsgeräte nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß der Einpreßnippel (18) sich an der Befestigungsmutter (19) und am Ventilkörper (36) mit den Dichtungsmitteln (39, 40) dichtend und verdrehbar anlegt.
- Handabschaltpistole für Hochdruckreinigungsgeräte nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß der Betätigungshebel (15) in einem Schwenklager (33) schwenkbar gelagert ist und durch dieses Schwenklager (33) der Betätigungshebel (15) in eine lange Handhabe (38) und einen kurzen Krafthebel (37) zweiarmig aufgeteilt wird, wobei der Metalleinsatz im Betätigungshebel (15), der auf den Ventilstößel (13) wirkt, sich auf der Seite des Krafthebels (37) befindet.
- Handabschaltpistole für Hochdruckreinigungsgeräte nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, daß am Außenumfang des Ventilschafts (22) eine ringsumlaufende Ausnehmung (32) vorhanden ist, welche unabhängig von der Drehstellung des Ventilschafts (22) einen Minimalwasserstrom in die Auslaßkammer (31) gewährleistet.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19739943 | 1997-09-11 | ||
| DE19739943A DE19739943A1 (de) | 1997-09-11 | 1997-09-11 | Handabschaltpistole für Hochdruckreinigungsgeräte |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0901834A2 EP0901834A2 (de) | 1999-03-17 |
| EP0901834A3 EP0901834A3 (de) | 2002-01-16 |
| EP0901834B1 true EP0901834B1 (de) | 2003-10-15 |
Family
ID=7842013
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP98116919A Expired - Lifetime EP0901834B1 (de) | 1997-09-11 | 1998-09-08 | Handabschaltpistole für Hochdruckreinigungsgeräte |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0901834B1 (de) |
| AT (1) | ATE251949T1 (de) |
| DE (2) | DE19739943A1 (de) |
| DK (1) | DK0901834T3 (de) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008059589A1 (de) | 2008-11-28 | 2010-06-02 | Nilfisk-Advance A/S | Handabschaltpistole |
| DE202009004992U1 (de) | 2009-07-06 | 2010-09-02 | Syntecs Gmbh Reinigungssysteme | Waschpistole zur Abgabe eines unter hohen Druck stehenden flüssigen Mediums |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3000576A (en) * | 1960-03-01 | 1961-09-19 | Spee Flo Company | Spray gun |
| DE3209902A1 (de) * | 1982-03-18 | 1983-09-22 | Wolfgang 4800 Bielefeld Suttner | Spritzpistole |
| DE3720241C2 (de) * | 1986-09-26 | 1994-09-22 | Wolfgang Suttner | Ventilpistole für ein Hochdruckreinigungsgerät |
| DE3926461A1 (de) * | 1989-07-15 | 1991-01-24 | Suttner Gmbh & Co Kg | Ventilpistole, insbesondere fuer ein hochdruckreinigungsgeraet |
| DE3933386C1 (de) * | 1989-10-06 | 1990-12-13 | Alfred Kaercher Gmbh & Co, 7057 Winnenden, De | |
| DE4007880A1 (de) * | 1990-02-28 | 1991-08-29 | Suttner Gmbh & Co Kg | Ventilpistole fuer ein hochdruckreinigungsgeraet o. dgl. |
| DE9212797U1 (de) * | 1992-09-23 | 1993-10-21 | Wap Reinigungssysteme Gmbh & Co, 89287 Bellenberg | Frostschutzsicherung für ein Hochdruckreinigungsgerät ... |
| DE29612979U1 (de) * | 1996-05-01 | 1996-09-19 | Alfred Kärcher GmbH & Co, 71364 Winnenden | Handspritzpistole für ein Hochdruckreinigungsgerät |
-
1997
- 1997-09-11 DE DE19739943A patent/DE19739943A1/de not_active Withdrawn
-
1998
- 1998-09-08 DK DK98116919T patent/DK0901834T3/da active
- 1998-09-08 DE DE59809912T patent/DE59809912D1/de not_active Expired - Fee Related
- 1998-09-08 EP EP98116919A patent/EP0901834B1/de not_active Expired - Lifetime
- 1998-09-08 AT AT98116919T patent/ATE251949T1/de not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| ATE251949T1 (de) | 2003-11-15 |
| EP0901834A2 (de) | 1999-03-17 |
| DE59809912D1 (de) | 2003-11-20 |
| DK0901834T3 (da) | 2004-02-16 |
| EP0901834A3 (de) | 2002-01-16 |
| DE19739943A1 (de) | 1999-03-18 |
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