EP4104936A1 - Unité de buse pivotante comme accessoire pour une lance de pulvérisation, en particulier une lance télescopique de pulvérisation pour le nettoyage des façades de bâtiments au moyen d'une telle lance - Google Patents

Unité de buse pivotante comme accessoire pour une lance de pulvérisation, en particulier une lance télescopique de pulvérisation pour le nettoyage des façades de bâtiments au moyen d'une telle lance Download PDF

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Publication number
EP4104936A1
EP4104936A1 EP22000154.9A EP22000154A EP4104936A1 EP 4104936 A1 EP4104936 A1 EP 4104936A1 EP 22000154 A EP22000154 A EP 22000154A EP 4104936 A1 EP4104936 A1 EP 4104936A1
Authority
EP
European Patent Office
Prior art keywords
lance
spray
nozzle unit
nozzle
correction
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.)
Withdrawn
Application number
EP22000154.9A
Other languages
German (de)
English (en)
Inventor
Thomas Rockenschaub
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.)
Tro GmbH
Original Assignee
Tro GmbH
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 Tro GmbH filed Critical Tro GmbH
Publication of EP4104936A1 publication Critical patent/EP4104936A1/fr
Withdrawn legal-status Critical Current

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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
    • B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
    • B05B15/60—Arrangements for mounting, supporting or holding spraying apparatus
    • B05B15/65—Mounting arrangements for fluid connection of the spraying apparatus or its outlets to flow conduits
    • B05B15/652—Mounting arrangements for fluid connection of the spraying apparatus or its outlets to flow conduits whereby the jet can be oriented
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
    • B05B15/60—Arrangements for mounting, supporting or holding spraying apparatus
    • B05B15/62—Arrangements for supporting spraying apparatus, e.g. suction cups
    • B05B15/628—Arrangements for supporting spraying apparatus, e.g. suction cups of variable length
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
    • B05B15/60—Arrangements for mounting, supporting or holding spraying apparatus
    • B05B15/68—Arrangements for adjusting the position of spray heads
    • 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
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
    • B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
    • B65H75/34—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables
    • B65H75/38—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables involving the use of a core or former internal to, and supporting, a stored package of material
    • B65H75/44—Constructional details
    • B65H75/4402—Guiding arrangements to control paying-out and re-storing of the material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
    • B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
    • B65H75/34—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables
    • B65H75/38—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables involving the use of a core or former internal to, and supporting, a stored package of material
    • B65H75/44—Constructional details
    • B65H75/4478—Constructional details relating to handling of fluids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/33—Hollow or hose-like material

Definitions

  • the present invention relates to a pivoting nozzle unit as an attachment for a spray lance, in particular a telescopic spray lance, comprising at least: a spray nozzle for the controlled delivery of a liquid; and a connection for a feed hose of a spray lance.
  • the present invention also relates to a telescopic spray lance for cleaning building facades with such a pivoting nozzle unit, at least comprising: at least two hollow lance elements, the cross sections of the lance elements being dimensioned such that a second lance element can be moved in or out of a first lance element; and a holder for the pivoting nozzle unit for the controlled delivery of a liquid onto a facade, the holder for the pivoting nozzle unit being arranged on a lance element.
  • building cleaning machines In addition to a unit for mixing cleaning agents and generating the corresponding liquid pressures, building cleaning machines have a hose system connected to it, which supplies a spray lance for spraying the cleaning liquids and for rinsing with pure water on a facade wall.
  • Simple spray lances which are also intended for private use, have a length of half a meter to about one and a half meters.
  • Telescopic spray lances are normally used to clean higher or more distant surfaces, in which a large number of lance elements with different cross-sectional sizes are arranged such that they can move inside one another and can be extended to form a lance of greater length for use, i.e. can be moved apart.
  • Telescopic spray lances with a length when extended of 5, 10 but also 15 m are known from the prior art.
  • the U.S. 3,915,382 A a telescopically extendable spray gun in the sense of a telescopic spray lance with hollow lance elements, a holder for a spray head and a feed hose running inside the lance elements.
  • the DE 10 2019 103 595 A1 the DE 10 2008 012 359 A1 as well as the WO 2003/033 167 A1 pointed out.
  • telescopic spray lances with a maximum length of more than 15 m would be desirable, but further problems arise with telescopic spray lances that can be extended to such a length.
  • Prior art telescopic spray lances are mostly comparatively heavy.
  • the problem often arises that the spray head at the upper end of the spray lance twists relative to the lower part of the spray lance, which the user fixes. As a result, the spray nozzle of the spray head cannot be optimally aligned with the building wall.
  • Spray nozzle devices are known, which allow an alignment of an angle of inclination of a spray nozzle to the wall or the rotation of the spray nozzle opening about an axis parallel to the conveying direction of a feed hose.
  • the ones in the GB 2 535 817 A disclosed device in the form of a telescopic arm controlled via geared motors and joints with a spray head allows spraying an inaccessible, especially a poorly visible surface with any material, such as the surface inside a closed housing or the like.
  • the known devices none of which can be assigned to the area of building cleaning, are technically complex and therefore expensive and disadvantageously only allow the manipulation of spray nozzles on spray arms of medium length.
  • the object of the present invention is to provide a pivoting nozzle unit improved over the prior art as an attachment for a spray lance, in particular a telescopic spray lance, which facilitates the alignment of the spray nozzle of a spray lance on a facade surface.
  • the pivoting nozzle unit should preferably be able to be used as an attachment for particularly long spray lances and/or telescopic spray lances which can be extended particularly far and which preferably reach a length of 30 m and more. Therefore, the present invention is also based on the object of providing a telescopic spray lance improved over the prior art for cleaning building facades with such a pivoting nozzle unit, which allows the user simple and at the same time precise handling, especially with comparatively large extension lengths. Finally, the present invention is intended to provide a comparatively simple and therefore cost-effective solution.
  • a pivoting nozzle unit according to the invention is distinguished from generic pivoting nozzle units in that the pivoting nozzle unit comprises a control mechanism which is set up to change a spraying angle (a) and/or at least one angle ( ⁇ 1 , ⁇ 2 ) of a vertical alignment of the spray nozzle.
  • the alignment of the spray nozzle with respect to the building facade can advantageously be changed automatically, in particular the inclination of the spray nozzle with respect to the facade wall, i.e. the spraying angle ( ⁇ ), and/or the angle ( ⁇ 1 , ⁇ 2 ) of a vertical alignment of the spray nozzle, ie the deviation of the longitudinal axis of the spray nozzle or of the entire upper end of the spray lance from a vertical alignment can be changed or corrected.
  • the corrective movement can be user-defined, for example initiated by a remote control that sends wireless control data to the pivoting nozzle unit, or preferably take place automatically.
  • the pivoting nozzle unit according to the invention not only facilitates the cleaning of facades, but can also be used advantageously for painting or varnishing facade walls.
  • control mechanism has at least one fastening means firmly connected to the spray nozzle; a holder with a tooth link, the holder directly or indirectly connecting one end of the spray lance to the fastening means of the spray nozzle; and a motor whose motor axis is connected to the fastening means perpendicularly to the longitudinal axis of the spray nozzle and comprises at least one gear wheel which engages in the tooth link of the holder.
  • a control mechanism designed in this way can advantageously bend and stretch either the supply hose itself or a connecting hose arranged between one end of the supply hose and the spray nozzle and thereby change the spraying angle (a) of the spray nozzle onto the facade wall.
  • the pivoting nozzle unit comprises a control device for controlling the motor, the control device preferably consisting of at least a receiver for receiving wirelessly transmitted control data and at least one electronic switch for controlling the motor based on the control data received from the receiver.
  • the control device can consist of a sensor which detects a deviation from an ideal spraying angle ( ⁇ ) and independently initiates corrective movements by starting the engine.
  • a gyroscopic sensor, a sensor for angle measurement and/or an optical sensor can be used as such a sensor.
  • a control device configured as a receiver together with an electronic switch, on the other hand, can transmit control data from a person at the lower end of the spray lance, in particular at the lower end of the telescopic spray lance, which this person sends to the receiver, for example by means of a transmitter, preferably by means of a radio transmitter, Bluetooth transmitter or the like. process, which advantageously enables remote control of the swivel nozzle unit by the user.
  • control mechanism comprises at least one correction nozzle unit, which is set up to change the angle ( ⁇ 1 , ⁇ 2 ) of a vertical orientation of the spray nozzle by spraying liquid.
  • a correcting nozzle unit as part of the control mechanism can advantageously counteract this angular deviation and preferably automatically bring the spray nozzle back into a vertical orientation, that is to say perpendicular.
  • the correction nozzle unit comprises at least two correction nozzles, which are arranged on the correction nozzle unit in such a way that they spray liquid in opposite directions, each perpendicular to the conveying direction of the feed hose and perpendicular to the plane defined by the spraying angle ( ⁇ ).
  • Such a configured correction nozzle unit can advantageously Use the kinetic energy of part of the liquid to be sprayed as a drive for a corrective movement.
  • the correction nozzle unit can include at least one solenoid valve for this purpose, which regulates the exit of liquid from the correction nozzles.
  • the correction nozzle unit can particularly preferably comprise a first magnetic valve and a second magnetic valve, the first magnetic valve controlling the liquid outlet from a first correction nozzle and the second magnetic valve controlling the liquid outlet from a second correction nozzle.
  • part of the liquid transported through the supply hose can advantageously be contained within the correction nozzle unit are separated from the main liquid flow and diverted specifically to the first correction nozzle and/or to the second correction nozzle.
  • the first and the second correction nozzle can preferably be arranged on mutually opposite lateral sides of the correction nozzle unit.
  • the correction nozzle unit can also include at least one position sensor for measuring the angle ( ⁇ 1 , ⁇ 2 ) of a vertical alignment of the spray nozzle, which is set up when a predetermined amount of the angle ( ⁇ 1 , ⁇ 2 ) a vertical alignment of the spray nozzle that switch at least one solenoid valve.
  • the provision of at least one bearing sensor in the correction nozzle unit advantageously enables automated position correction of the pivoting nozzle unit and thus of the spray nozzle by automatically activating the at least one solenoid valve or the first or second solenoid valve depending on the deviation from a vertical alignment.
  • a gyroscopic sensor, a sensor for angle measurement and/or an optical sensor can also be used as such a sensor.
  • an embodiment of the invention has proven itself in which the correction nozzle unit, in particular the at least one solenoid valve, is set up to exchange control data with a control device for controlling the motor.
  • the at least one solenoid valve preferably the first and/or second solenoid valve, can thereby advantageously alternatively or cumulatively to the automatic Control by means of the at least one position sensor can also be controlled by the user, in particular by radio signal, Bluetooth signal and the like.
  • a telescopic spray lance according to the invention is distinguished from generic telescopic spray lances by a pivoting nozzle unit as described above, wherein the telescopic spray lance comprises at least one hose winding device, which is set up to have a supply hose for cleaning liquid and/or water, which is connected within the lance elements to the pivoting nozzle unit connected to the holder is performed to change its length within the lance elements.
  • the lance elements have a cross section that deviates from a circle, in particular a polygonal or elliptical cross section or a cross section that can be described using a triangular envelope geometry with convex legs, with preference being given to the cross sections, in particular the inner - and external cross-sections, all lance elements are geometrically similar to each other.
  • This anti-twist protection guaranteed by the geometry of the lance element has the advantage that a swivel nozzle unit connected to the holder at the upper end of the telescopic spray lance, i.e. a swivel nozzle unit attached to the lance element with the smallest cross-sectional diameter, cannot unintentionally rotate around the longitudinal axis of the extended telescopic spray lance. This makes it easier for the user of the telescopic spray lance to align the pivoting nozzle unit with the building facade.
  • a telescopic spray lance with a cross-section deviating from a circle in particular with a polygonal or elliptical cross-section or a cross-section that can be described using a triangular envelope geometry with convex legs, can advantageously be easily gripped by the user, thereby increasing control and occupational safety and advantageously avoiding a premature fatigue at work.
  • the hose winding device in another preferred embodiment, it has proven useful for the hose winding device to be arranged on the lance element with the largest cross section and/or for the holder for the pivoting nozzle unit to be arranged on the lance element with the smallest cross section.
  • This advantageously ensures that the center of gravity of the telescopic spray lance, in particular when it is extended, is always close to the ground or close to the user and that the controlled guidance of a device connected to the holder at the upper end of the telescopic spray lance, i.e. one on the lance element with the smallest cross-sectional diameter attached swivel nozzle unit advantageously further improved.
  • the hose winding device can comprise at least one rotatably mounted drum for receiving the supply hose.
  • a rotatably mounted drum makes it possible to advantageously store the supply hose rolled up on the drum in a space-saving manner.
  • the feed hose can be unwound from the drum quickly, easily and in a controlled manner while the telescopic spray lance is being extended.
  • a pressure roller is arranged on the drum, which presses the supply hose against the drum during its winding and/or unwinding movement.
  • a pressure roller which is preferably itself rotatably mounted, advantageously prevents uncontrolled unwinding of the supply hose from the drum, in particular during the extension of the telescopic spray lance.
  • pivoting nozzle unit held by the holder can be connected to one end of the feed hose guided within the lance elements.
  • a connection of a pivoting nozzle unit held by the holder to one end of a supply hose guided within the lance elements advantageously ensures that the pivoting nozzle unit is supplied with liquid.
  • the other end of the supply hose can then preferably be connected to the hose winding device, in particular when a connection for the hose winding device is provided on the hose winding device Supply of cleaning liquid and / or water is arranged.
  • a cleaning liquid and/or water can advantageously be taken up from external sources, in particular by means of a pump, and forwarded to the supply hose.
  • the present invention relates to a pivoting nozzle unit as an attachment for a spray lance, in particular a telescopic spray lance, comprising at least one spray nozzle for the controlled dispensing of a liquid and a connection for a feed hose of a spray lance. It is characterized by a control mechanism which is set up to change a spraying angle (a) and/or an angle ( ⁇ 1 , ⁇ 2 ) of a vertical orientation of the spray nozzle.
  • the pivoting nozzle unit according to the invention advantageously makes it possible, if there is too great a deviation from a vertical alignment (to the left or right) to the position of the operator on the ground or if the spray nozzle is unfavorably aligned to the wall, the spraying angle ( ⁇ ) and/or the angle ( ⁇ 1 , ⁇ 2 ) to automatically correct a vertical alignment of the spray nozzle in a simple manner by activating the control mechanism.
  • This "auto-correction" can be used to implement spray lances, in particular telescopic spray lances, with a greater length, as well as fine positioning of the spray nozzle at critical points on the facade.
  • the present invention advantageously makes it possible to provide telescopic spray lances with comparatively large maximum lengths, in particular with maximum lengths of up to 30 m, which can be handled easily and safely by a user.
  • the telescopic spray lance according to the invention also advantageously enables a precise alignment of a pivoting nozzle unit attached to it to a building wall to be cleaned, even with particularly large maximum lengths.
  • a swivel nozzle unit 1 preferred according to the invention as an attachment for a spray lance 4a, in particular as an attachment for a telescopic spray lance 4b, comprises at least one spray nozzle 11 for the controlled delivery of a liquid and a connection 31 for a supply hose 3 of a spray lance 4a.
  • the spray nozzle 11 itself can preferably be designed as a rigid component, in particular as a metallic piece of pipe, and advantageously ensures the controlled discharge of various cleaning liquids, water and/or paint onto a facade wall. Said liquid is supplied to the spray nozzle 11 via a supply hose 3 inside a spray lance 4a, in particular a telescopic spray lance, which is operatively connected to the spray nozzle 11 via a connection 31 .
  • connection 31 can be arranged directly on the spray nozzle 11 (not shown here) or, as shown here, it can be located on another component, preferably on a correction nozzle unit 24, which is/are a lower end of the spray nozzle 11 to an upper end of the spray lance 4a, in particular to an upper end of a feed hose 3 guided inside the lance.
  • the correction nozzle unit 24 is then in turn connected to the spray nozzle 11 by means of a connecting hose 12 so that liquid can flow from the supply hose 3 to the correction nozzle unit 24 and from there to the spray nozzle 11 .
  • the pivoting nozzle unit 1 preferred according to the invention also includes a control mechanism 2 which is set up to change a spraying angle ⁇ and/or at least one angle ⁇ 1 or ⁇ 2 of a vertical orientation of the spray nozzle 11 .
  • the spraying angle ⁇ corresponds to the angle between the feed direction 32 of the feed hose 3 and the longitudinal axis 111 of the spray nozzle 11 and is in particular approximately in the yz plane.
  • the spray angle ⁇ thus also determines the angle at which the liquid hits the facade wall.
  • the angle ⁇ 1 or ⁇ 2 of a vertical alignment of the spray nozzle 11 corresponds to the deviation of the longitudinal alignment of the spray lance 4a and thus also the alignment of the feed hose 3 or the feed direction 32 from a vertical alignment with respect to the ground.
  • the angles ⁇ 1 and ⁇ 2 are equal to 0°; in the case of a deviation in one direction, in particular a lateral deviation parallel to the facade wall, i.e. approximately in the xz plane, the angle ⁇ 1 becomes greater than 0°, in the case of a deviation in the other direction, in particular a lateral deviation parallel to the facade wall , ie also approximately in the xz plane, the angle ⁇ 2 becomes greater than 0°.
  • the control mechanism 2 can comprise at least one fastening means 28 which is firmly connected to the spray nozzle 11 , a holder 27 with a toothed link 29 and a motor 21 .
  • the holder 27 preferably connects one end of the spray lance 4a directly to the fastening means 28 of the spray nozzle 11 if the lower end of the holder 27 is arranged directly at the upper end of the spray lance 4a and the feed hose 3 via a connection 31 directly to the lower end of the Spray nozzle 11 is operatively connected (not shown here), or indirectly if, as can be seen here, another component, in particular a correction nozzle unit 24, is arranged between the lower end of the holder 27 and the upper end of the spray lance 4a, on which then the connection 31 for the supply hose 3 can be located.
  • the motor axis 212 is preferably connected to the fastening means 28 perpendicularly to the longitudinal axis 111 of the spray nozzle 11 and can comprise at least one gear wheel 22 which engages in the tooth
  • the fastening means 28 can in particular be designed as an adapter plate 281 which is firmly connected to the spray nozzle 11 and integrated on a side facing the motor 21 of its motor axis 212 .
  • a fastening means 28 is shown in the form of a bracket, one side of which corresponds to the adapter plate 281 .
  • the fixed connection between the spray nozzle 11 and the fastening means 28 or adapter plate 281 can be realized in particular by a screw connection, so that the spray nozzle 11 can advantageously be replaced.
  • Pivoting nozzle unit 1 can also include a control device 211 for controlling motor 21, control device 211 preferably being formed from at least one receiver for receiving wirelessly transmitted control data and at least one electronic switch for controlling motor 21 based on the control data received from the receiver can be.
  • the control device 211 can be, for example, a receiving sensor integrated into the motor unit, which ensures that when a radio signal is triggered by the operator actuating the lower end of the spray lance 4a, in particular the telescopic spray lance, the gear wheel, which is firmly connected to the fastening means 28 but is rotatably mounted 22 a change in position of the spray nozzle 11 in the direction of the spray nozzle outlet opening, ie an increase in the spraying angle ⁇ causes the spray nozzle 11 to change the angle at which the liquid hits the facade wall.
  • control mechanism 2 also includes at least one correction nozzle unit 24.
  • This correction nozzle unit is preferably set up to change the angle ⁇ 1 or ⁇ 2 of a vertical alignment of the spray nozzle 11 by spraying liquid.
  • Fig.2 shows the configuration of the pivoting nozzle unit 1 Fig.1 in a perspective view with opposite viewing direction.
  • the correction nozzle unit 24 can preferably comprise at least two correction nozzles 25a and 25b, which are arranged on the correction nozzle unit 24 in such a way that they eject liquid in opposite directions, in each case perpendicular to the conveying direction of the supply hose 3 and perpendicular to the to spray the plane (in particular the yz plane) defined by the spraying angle ⁇ .
  • a first correction nozzle 25a can be arranged on the left-hand side of correction nozzle unit 24, particularly with regard to spray nozzle 11, and a second correction nozzle 25b can be arranged on the right-hand side of correction nozzle unit 24 with a view of spray nozzle 11, and thus be set up to allow fluid to flow into each other to spray in opposite directions and perpendicular to the conveying direction of the feed hose 3 and perpendicular to the plane defined by the spray angle ⁇ .
  • the correction nozzle unit 24 can also include at least one solenoid valve 26a, 26b, which regulates the liquid exit from the correction nozzles 25a, 25b.
  • the correction nozzle unit 24 preferably includes a first solenoid valve 26a and a second solenoid valve 26b, with the first solenoid valve 26a controlling the liquid outlet from the first correction nozzle 25a and the second solenoid valve 26b controlling the liquid outlet from the second correction nozzle 25b.
  • the solenoid valve(s) 26a or 26b When the solenoid valve(s) 26a or 26b is/are activated, part of the liquid can be deflected and exit via one of the correction nozzles 25a or 25b with a smaller cross section, thus creating a correction jet that exits perpendicularly to the feed direction 32 of the feed hose 3, so that the entire swivel nozzle unit 1 in the opposite direction to Liquid outlet of the respective correction nozzle 25a or 25b is moved (correction movement).
  • the correction nozzles 25a and 25b are preferably located both to the left and to the right of the supply hose 3, so that a correction movement in both directions is advantageously made possible.
  • this, in particular its at least one solenoid valve 26a, 26b, can be set up to exchange control data with a control device 211 for controlling the motor 21.
  • the correction nozzle unit 24 can also preferably include at least one position sensor 241 for measuring the angle ⁇ 1 or ⁇ 2 of a vertical alignment of the spray nozzle 11, which is set up when a predetermined amount of the angle ⁇ 1 or ⁇ 2 is exceeded a vertical alignment of the spray nozzle 11, to switch the at least one solenoid valve 26a, 26b, ie in particular the first solenoid valve 26a and/or the second solenoid valve 26b.
  • a corresponding sensor signal can advantageously automatically carry out a position correction by activating the respective solenoid valve 26a and/or 26b and the associated exit of a correction jet from the correction nozzles 25a or 25b can be effected.
  • a gyroscopic sensor, a sensor for angle measurement and/or an optical sensor can be used as such a position sensor 241 .
  • the motor 21, the control device 211, the correction nozzle unit 24, and all other electrical components of the pivoting nozzle unit 1 are supplied with electricity, preferably via a means 23 for supplying energy, in particular a battery or an accumulator, which in the present example is connected directly to the motor 21 or whose control unit 211 is shown connected.
  • the means 23 for supplying energy can of course also be arranged on the correction nozzle unit 24 and/or on the holder 27 .
  • the pivoting nozzle unit 1 comprises at least one means 23 for supplying energy, in particular a battery or an accumulator.
  • the means 23 for supplying energy which can be arranged in particular on the motor 21, advantageously enables the supply of energy to the motor 21, the control device 211 and/or the correction nozzle unit 24, in particular their solenoid valve or solenoid valves 26a, 26 and/or their position sensor or position sensors 241, without requiring long cable connections along the spray lance 4a, in particular a telescopic spray lance 4b.
  • the holder 27 is preferably designed in such a way that the tooth link 29 runs in a semicircle in the yz plane and extends within the yz plane in such a way that the spray nozzle 11 positions both on this side of the xz plane and on the other side of the xz plane can take.
  • the spraying angle ⁇ (cf. also 3 ) advantageously extend over an angular range which, with respect to the feed direction 32 (z-direction), is both in the +y-direction (in the sense of "spraying forward") and in the -y-direction (in the sense of "spraying backwards”) points.
  • control mechanism 2 can include two correction nozzle units 24 which are each set up to change the angle ⁇ 1 or ⁇ 2 of a vertical alignment of the spray nozzle 11 by spraying liquid.
  • the two correction nozzle units 24 can preferably be arranged perpendicular to one another, as a result of which the correction nozzles 25a and 25b of one correction nozzle unit 24 arranged on the correction nozzle units 24 now spray in the x direction and the correction nozzles 25a and 25b of the other correction nozzle unit 24 arranged perpendicular thereto spray in the ⁇ direction can.
  • the angle ⁇ 1 or ⁇ 2 of a vertical alignment of the spray nozzle 11 corresponds to the deviation of the longitudinal alignment of the spray lance 4a and thus also the alignment of the feed hose 3 or the feed direction 32 from a vertical alignment with respect to the Soil, in the present case both a deviation parallel to the facade wall, i.e. approximately in the xz plane as in the previously described embodiment, and also a deviation towards or away from the facade wall (approximately in the yz plane) by spray blasts of the respective correction nozzles can advantageously be compensated.
  • Fig.4 indicated by the intersecting, curved double arrows.
  • the configuration of the holder 27 shown can of course also be combined with only one correction nozzle unit 24, just like the one shown in FIGS Fig.1 to 3
  • the configuration of the holder 27 shown can be combined with the two correction nozzle units 24 described here, which are preferably arranged perpendicularly to one another.
  • FIG 5 an embodiment of an inventively preferred telescopic spray lance 4b with eight lance elements 41 is shown in a perspective view in the extended state.
  • a telescopic spray lance 4b preferred according to the invention for cleaning building facades with a pivoting nozzle unit 1 comprises at least two hollow lance elements 41, the cross sections of the lance elements 41 being dimensioned such that a second lance element 41 can be moved in and out of a first lance element 41.
  • the configuration shown has, for example, eight lance elements 41, which can be moved into or out of one another.
  • a holder 42 for the pivoting nozzle unit 1 for the controlled dispensing of a liquid onto a facade is arranged on a lance element 41 .
  • the holder 42 for the pivoting nozzle unit 1 is preferably arranged on the lance element 41 with the smallest cross section.
  • the telescopic spray lance 4b in particular its lance elements 41, can in particular be made of a lightweight material, preferably carbon fiber reinforced plastic, which advantageously minimizes the overall weight of the telescopic spray lance 4b, particularly in the case of telescopic spray lances 4b with a large number of lance elements 41.
  • the number of lance elements 41 is preferably at least 8, as shown here, and at most 20.
  • the telescopic spray lance 4b in which, for example, all existing lance elements 41 are moved as far apart as possible, it can preferably have a length of at least 8 m and at most have 30 m.
  • the length of a telescopic spray lance 4b, in which all existing lance elements 41 are moved apart as far as possible, is also referred to as the maximum length of the telescopic spray lance 4b.
  • the length of the telescopic spray lance 4b is preferably at least 0.8 m and at most 1.5 m, the length of the telescopic spray lance 4b in the retracted state essentially being determined by the length of the individual lance element 41, or in the case of individual lance elements 41 of unequal length the longest lance element 41, is determined.
  • maximum lengths of the telescopic spray lance 4b preferred according to the invention of up to 30 m can advantageously be achieved.
  • Telescopic spray lances 4b preferred according to the invention with maximum lengths between preferably 8 m and 30 m can be handled easily and safely and at the same time advantageously ensure precise guidance of the pivoting nozzle unit 1 at the upper end of the telescopic spray lance 4b.
  • the division of these maximum lengths into 8 to 20 lance elements 41 makes individual lance element lengths of approximately 0.8 m to 1.5 m possible.
  • the telescopic spray lance 4b is advantageously easy to transport and store in the retracted state.
  • the lance elements 41 of a telescopic spray lance 4b can be of different lengths or all of the same length.
  • FIG. 6 shows the configuration of a telescopic spray lance 4b, which is preferred according to the invention 1 without a pivoting nozzle unit 1 connected to the telescopic spray lance 4b.
  • the telescopic spray lance 4b preferred according to the invention is characterized by at least one hose winding device 5, which is set up, a supply hose 3 for cleaning liquid and/or water, which is connected within the lance elements 41 to a pivoting nozzle unit 1 is guided to change in its length within the lance elements 41.
  • the hose winding device 5 can—as shown—preferably be arranged on the lance element 41 with the largest cross section.
  • FIG. 7 shows in an enlarged representation an embodiment of a hose winding device 5 in a perspective view looking at one side of said device and 8 the same configuration viewed from the other side of the device.
  • the hose winding device 5 preferably comprises at least one rotatably mounted drum 51 for receiving the supply hose 3. In the Fig.2 to 4 the respective feed hose 3 is still shown completely wound onto the drum 51.
  • a pressure roller 54 can also be arranged on the drum 51, which Supply hose 3 presses against the drum 51 during its winding and/or unwinding movement.
  • the pinch roller 54 is in the 3 and 4 arranged, for example, on the side of the drum 51 opposite the lance element 41 and preferably itself rotatably mounted.
  • the hose winding device 5 preferably comprises at least one drive 52 , in particular a motor/gear unit, which is set up to rotate the drum 51 .
  • the drive 52 in particular the motor/gear unit, advantageously enables the automatic winding and unwinding of the supply hose 3 onto and from the drum 51.
  • the drive 52 in particular the motor/gear unit, can preferably comprise a means 55 for supplying energy, in particular a battery and/or a rechargeable battery.
  • the means 55 for supplying energy can be arranged in particular on the hose winding device 5, so that the telescopic spray lance 4b can be supplied with electrical current autonomously from external energy sources.
  • power cables from an external power source to the telescopic spray lance 4b become unnecessary during operation, which can advantageously increase operational safety and work safety, since tripping hazards caused by power cables lying on the ground are avoided.
  • the lance elements 41 of the telescopic spray lance 4b particularly preferably have a cross-section that deviates from a circle, in particular a polygonal or elliptical cross-section or a cross-section that can be described using a triangular envelope geometry with convex legs, which is well illustrated in the last example 2 you can see.
  • the cross sections, in particular the inner and outer cross sections, of all lance elements 41 are preferably geometrically similar to one another.
  • the outer diameter of the lance elements 41 can preferably be designed in such a way that adjacent lance elements 41 can be plugged into one another or moved into and out of one another in such a way that the outer cross section of a lance element 41 with a minimum tolerance-compensating gap, the inner cross section of the lance element 41 adjacent to it with next corresponds to a larger cross-section.
  • a pivoting nozzle unit 1 held by the holder 42 can then preferably be connected to one end of the feed hose 3 guided within the lance elements 41.
  • one end of the supply hose 3 can, for example, first be partially unrolled from the drum 51 , guided through retracted and thus nested lance elements 41 and then connected to the pivoting nozzle unit 1 .
  • a connection 56 for the supply of cleaning liquid and/or water can be arranged on the hose winding device 5, via which the telescopic spray lance 4b can be supplied with liquid via an external source, in particular via a pump and a reservoir (cf. Fig.3 ).
  • the lance elements 41 can also preferably be operatively connected to one another in such a way that a lance element 41 with a smaller cross section pulls along the following lance element 41 with the next larger cross section during an extension movement of the telescopic spray lance 4b.
  • Such an operative connection can be implemented, for example, by each lance element 41 having at least one connecting means on its upper edge and on its lower edge, the connecting means on the lower edge of lance element 41 with the respectively smaller cross section connecting to the connecting element on the upper edge of lance element 41 with the next larger cross section interacts when the lance element 41 with the smaller cross section is completely moved out of the lance element 41 with the next larger cross section.
  • the drive 52 in particular a motor/gear unit, can be activated on the hose winding device 5 and/or (not shown) on a lance element 41, in particular on the lowest lance element 41, i.e. the one with the largest cross section, which rotates the drum 51 and thereby unwinds the feed hose 3.
  • the drive 52 in particular a motor/gear unit
  • the drive 52 can be activated on the hose winding device 5 and/or (not shown) on a lance element 41, in particular on the lowest lance element 41, i.e. the one with the largest cross section, which rotates the drum 51 and thereby unwinds the feed hose 3.
  • a pivoting nozzle unit 1 according to the invention advantageously makes it possible, if there is too great a deviation from a vertical alignment (to the left or right) from the position of the operator on the ground, to automatically adjust the angle(s) ⁇ 1 or ⁇ 2 by activating the lateral correction nozzles 25a or 25b to correct a vertical alignment of the spray nozzle 11.
  • manual correction is otherwise difficult due to the unfavorable lever ratios.
  • This “auto-correction” advantageously makes it possible to implement spray lances 4a, in particular telescopic spray lances 4b, with a greater length.
  • the inclination of the spray nozzle 11 to a facade wall can advantageously be changed, in particular via a motorized adjustment of the spraying angle a, which advantageously allows fine positioning of the spray nozzle 11 at critical facade points.
  • the present invention therefore also relates to a telescopic spray lance 4b for cleaning building facades with such a pivoting nozzle unit 1, comprising at least: at least two hollow lance elements 41, the cross sections of the lance elements 41 being dimensioned such that a second lance element 41 can be inserted into a first lance element 41 is movable in and out; and a holder 42 for a pivoting nozzle unit 1 for the controlled delivery of a liquid onto a facade, the holder 42 for the pivoting nozzle unit 1 being arranged on a lance element 41 .
  • hose winding device 5 which is set up to change the length of a supply hose 3 for cleaning liquid and/or water, which is routed within the lance elements 41 to a pivoting nozzle unit 1 connected to the holder 42, within the lance elements 41 .

Landscapes

  • Details Or Accessories Of Spraying Plant Or Apparatus (AREA)
  • Spray Control Apparatus (AREA)
EP22000154.9A 2021-06-15 2022-06-09 Unité de buse pivotante comme accessoire pour une lance de pulvérisation, en particulier une lance télescopique de pulvérisation pour le nettoyage des façades de bâtiments au moyen d'une telle lance Withdrawn EP4104936A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102021003027.3A DE102021003027A1 (de) 2021-06-15 2021-06-15 Teleskopsprühlanze für die Reinigung von Gebäudefassaden

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EP4104936A1 true EP4104936A1 (fr) 2022-12-21

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EP22000154.9A Withdrawn EP4104936A1 (fr) 2021-06-15 2022-06-09 Unité de buse pivotante comme accessoire pour une lance de pulvérisation, en particulier une lance télescopique de pulvérisation pour le nettoyage des façades de bâtiments au moyen d'une telle lance

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EP (1) EP4104936A1 (fr)
DE (1) DE102021003027A1 (fr)

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3915382A (en) 1974-04-29 1975-10-28 J C Davis Extension spray gun
WO2003033167A1 (fr) 2001-10-17 2003-04-24 Tony Pohorecki Appareil de nettoyage sous pression et procede correspondant
WO2007130379A2 (fr) * 2006-05-01 2007-11-15 Tracy Boekelman Système à force variable pour lances de lavage sous pression montées sur piquet
DE102008012359A1 (de) 2007-08-22 2009-02-26 Robert Bosch Gmbh Hochdruckreinigungsgerät
GB2470800A (en) * 2009-06-04 2010-12-08 Yuan Mei Corp Method for adjusting telescopic water pipe and structure thereof
GB2535817A (en) 2014-10-22 2016-08-31 Q-Bot Ltd Spray nozzle arm
WO2017143497A1 (fr) * 2016-02-22 2017-08-31 Ac (Macao Commercial Offshore) Limited Système de laveuse à pression modulaire, procédé et kit correspondants
CN208145663U (zh) 2018-02-28 2018-11-27 济南东之林智能软件有限公司 喷淋组件及喷淋系统
DE102017130003A1 (de) * 2017-12-14 2019-06-19 J. Wagner Gmbh Verfahren zum Betrieb einer handgeführten Sprüheinrichtung und handgeführte Sprüheinrichtung
GB2572314A (en) * 2018-02-05 2019-10-02 Airpole Ltd Gutter and roof cleaning apparatus
DE102019103595A1 (de) 2019-02-13 2020-08-13 Jörn Krause Vorrichtung zur Reinigung einer Dachfläche

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3915382A (en) 1974-04-29 1975-10-28 J C Davis Extension spray gun
WO2003033167A1 (fr) 2001-10-17 2003-04-24 Tony Pohorecki Appareil de nettoyage sous pression et procede correspondant
WO2007130379A2 (fr) * 2006-05-01 2007-11-15 Tracy Boekelman Système à force variable pour lances de lavage sous pression montées sur piquet
DE102008012359A1 (de) 2007-08-22 2009-02-26 Robert Bosch Gmbh Hochdruckreinigungsgerät
GB2470800A (en) * 2009-06-04 2010-12-08 Yuan Mei Corp Method for adjusting telescopic water pipe and structure thereof
GB2535817A (en) 2014-10-22 2016-08-31 Q-Bot Ltd Spray nozzle arm
US20180264640A1 (en) * 2014-10-22 2018-09-20 Q-Bot Limited Robotic Device
WO2017143497A1 (fr) * 2016-02-22 2017-08-31 Ac (Macao Commercial Offshore) Limited Système de laveuse à pression modulaire, procédé et kit correspondants
DE102017130003A1 (de) * 2017-12-14 2019-06-19 J. Wagner Gmbh Verfahren zum Betrieb einer handgeführten Sprüheinrichtung und handgeführte Sprüheinrichtung
GB2572314A (en) * 2018-02-05 2019-10-02 Airpole Ltd Gutter and roof cleaning apparatus
CN208145663U (zh) 2018-02-28 2018-11-27 济南东之林智能软件有限公司 喷淋组件及喷淋系统
DE102019103595A1 (de) 2019-02-13 2020-08-13 Jörn Krause Vorrichtung zur Reinigung einer Dachfläche

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