EP3283227A1 - Dispositif de pulvérisation - Google Patents

Dispositif de pulvérisation

Info

Publication number
EP3283227A1
EP3283227A1 EP15715735.5A EP15715735A EP3283227A1 EP 3283227 A1 EP3283227 A1 EP 3283227A1 EP 15715735 A EP15715735 A EP 15715735A EP 3283227 A1 EP3283227 A1 EP 3283227A1
Authority
EP
European Patent Office
Prior art keywords
spray
sealing
contour
nozzle
housing
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.)
Granted
Application number
EP15715735.5A
Other languages
German (de)
English (en)
Other versions
EP3283227B1 (fr
Inventor
Jörg SCHMID
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.)
Filing date
Publication date
Application filed by Alfred Kaercher SE and Co KG filed Critical Alfred Kaercher SE and Co KG
Publication of EP3283227A1 publication Critical patent/EP3283227A1/fr
Application granted granted Critical
Publication of EP3283227B1 publication Critical patent/EP3283227B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
    • B05B9/01—Spray pistols, discharge devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • 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
    • B05B1/14—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening
    • B05B1/16—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening having selectively- effective outlets
    • B05B1/1627—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening having selectively- effective outlets with a selecting mechanism comprising a gate valve, a sliding valve or a cock
    • B05B1/1636—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening having selectively- effective outlets with a selecting mechanism comprising a gate valve, a sliding valve or a cock by relative rotative movement of the valve elements
    • B05B1/1645—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening having selectively- effective outlets with a selecting mechanism comprising a gate valve, a sliding valve or a cock by relative rotative movement of the valve elements the outlets being rotated during selection
    • B05B1/1654—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening having selectively- effective outlets with a selecting mechanism comprising a gate valve, a sliding valve or a cock by relative rotative movement of the valve elements the outlets being rotated during selection about an axis parallel to the liquid passage in the stationary valve element
    • 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
    • B05B1/14—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening
    • B05B1/16—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening having selectively- effective outlets
    • B05B1/169—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening having selectively- effective outlets having three or more selectively effective outlets
    • 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

Definitions

  • the invention relates to a spraying device, in particular for watering green areas, comprising a housing in which a liquid supply channel is arranged or formed, and a spray unit for spraying a liquid movably held on the housing, which spraying unit has two or more nozzle elements, and two or more Feed channels for liquid, which are associated with a respective nozzle member and flow connected to said nozzle member, wherein with the nozzle elements different spray patterns are provided and by moving the spray unit relative to the housing, the spray pattern is variable, wherein the supply channel in a spray position of a respective nozzle member associated therewith Supply channel is fluidly connected.
  • Such a spraying device is designed, for example, as a spray gun or as a garden sprayer and serves in particular for watering green areas.
  • a plurality of nozzle elements are provided by which the user can generate different spray patterns as needed.
  • the nozzle elements comprise, for example, a rain shower, a spot jet nozzle, a mist nozzle and / or a flat jet nozzle.
  • the supply channel may optionally be fluidly connected to one of the supply channels.
  • the sealing device seals the flow connection between the supply channel and the feed channel of each nozzle element occupying the spray position to the outside.
  • Object of the present invention is to provide a generic spray device that is easier to use manageable.
  • a sealing device which forms a spray position sealing contour which, in a spray position sealing area, encloses an outlet opening of the supply channel and in the spray position of a respective nozzle element the inlet opening of the feed channel assigned thereto for providing a sealed flow connection, wherein the inlet opening of a respective other feed channel is arranged outside the spray position sealing area is, and that the sealing device forms a residual liquid-sealing contour, which surrounds the inlet opening of the at least one further feed channel in a residual liquid sealing area to provide a seal between the housing and the spray unit.
  • a spray position sealing contour is formed by the sealing device. If a respective nozzle element occupies a spray position, the inlet opening of the feed channel assigned thereto is arranged in the spray position sealing area surrounded by the spray position sealing contour. The outlet opening of the supply channel is also arranged in the spray position sealing area.
  • a spatially limited section at the transition from the housing to the spray unit, which is bordered by the sealing contour can be regarded as the sealing area, so that an opening arranged in the sealing area is covered by the sealing contour.
  • Inlets of feed channels of each not the spray position engaging nozzle elements are arranged outside of the spray position sealing area. Via the spray position sealing contour, a sealed flow connection is ensured.
  • the sealing device furthermore forms a residual liquid sealing contour, which encloses at least one inlet opening of the feed channel of the at least one further nozzle element in a residual liquid sealing area and preferably all inlet openings. In this way, a seal is provided between the housing and the spray unit.
  • An undesirable wetting of the user can be avoided, and the sprayer turns out to be easier to handle.
  • an impression on the part of the user can be prevented that the spray device has a malfunction due to the unexpected leakage of liquid between the housing and the spray unit.
  • the residual liquid sealing contour covers the spray position sealing contour and encloses the inlet openings of all feed channels.
  • the residual liquid sealing contour preferably encloses the inlet openings independently of the relative position of the spray unit and of the housing for providing the seal.
  • the residual liquid sealing contour preferably encloses the inlet openings independently of the relative position of the spray unit and of the housing for providing the seal.
  • the residual liquid sealing contour is limited with respect to an axis defined by the spraying device by at least one sealing element of the sealing device extending in the circumferential direction of the axis and / or radially to the axis.
  • the axis is z.
  • the residual liquid sealing contour is preferably ring-shaped, circular, ring-segment-shaped or circular-sector-shaped.
  • the spray position-sealing contour is limited with respect to an axis defined by the spray device of at least one in the circumferential direction of the axis and / or radially to the axis extending sealing element of the sealing device.
  • the axis is in particular the axis of rotation already mentioned. It proves to be advantageous in an advantageous implementation, when the spray position sealing contour is formed ring segment-shaped or circular sector-shaped.
  • the spray position sealing contour extends at least in sections along the residual liquid sealing contour, wherein at least one sealing element of the sealing device forms in sections the spray position sealing contour and the residual liquid sealing contour.
  • the sealing device comprises at least one sealing element extending in the circumferential direction of the above-mentioned axis, which forms the sealing contour and, in sections, the spray position sealing contour.
  • the inlet opening of one of the two feed channels exits from the spray position sealing area, and the inlet opening of the other feed channel already enters the spray position sealing area when the first-mentioned inlet opening is still partially arranged in the spray position sealing area and accordingly only partially from the spray position -Dicht Scheme has leaked.
  • "escape” and "entry” are to be understood in particular as meaning that the inlet opening is moved out of the spray position sealing contour (out of the sealing area) or into the spray contour sealing contour (into the sealing area).
  • the supply channel is accordingly temporally flow-connected with two supply channels.
  • the inlet opening entering the spray position sealing area then enters the spray position sealing area when the exiting inlet opening is arranged to still about 10% to 30% in the spray position sealing area.
  • the sealing device forms a spray position change sealing contour which preferably covers the spray position sealing contour and which encloses the inlet openings of the feed channels assigned thereto in a spray position change sealing area when changing the spray position between the first nozzle element and the second nozzle element in order to provide a sealed flow connection.
  • both inlet openings are arranged at least partially outside the spray position sealing area. Accordingly, a seal can be made as long as the first inlet opening or the second inlet opening is not completely arranged in the spray position sealing area, bordered by the Sprüh somehow- sealing contour when a Sprühgnanic occurs.
  • an inlet opening of a feed channel which is associated with a third, different from the first nozzle member and the second nozzle member nozzle element, upon receipt of the spray position of the first nozzle member or second nozzle member and when changing the spray position between the first nozzle member and the second nozzle member outside the Sprühscher flick- Sealing area arranged.
  • the spray position between the first and the second nozzle member is thereby ensured that no liquid from the supply channel enters a feed channel of another, third nozzle member. Instead, liquid is supplied to the first or the second nozzle element at best.
  • the residual liquid sealing contour makes it possible to seal the third inlet opening to the outside.
  • the spraying position change sealing contour with respect to an axis defined by the spraying device is limited by at least one sealing element of the sealing device extending in the circumferential direction of the axis and / or radially to the axis.
  • the axis is in particular the axis of rotation already mentioned.
  • sealing contours which are formed by the sealing device, for example, the residual liquid sealing contour, the Sprüh somehow facial-sealing contour and / or the spray position sealing contour.
  • a circular and a circular sector-shaped sealing contour for example, bounded radially on the outside by a sealing element extending in the circumferential direction of the axis, a circular sector-shaped sealing contour additionally in the circumferential direction by radially extending sealing elements.
  • An annular and a ring segment-shaped sealing contour are radially au- Outer side and radially inside, for example, limited by extending in the circumferential direction of the axis and spaced from each other arranged sealing elements, a ring-segment-shaped sealing contour in addition, for example, by radially extending sealing elements.
  • the spray position change sealing contour with respect to an axis defined by the spraying device extends over a larger angular range than a spraying position sealing contour which is ring-segment-shaped or circular-sector-shaped with respect to the axis and / or if the residual liquid
  • the sealing contour extends over a larger angular range than a spray position change sealing contour formed with respect to the axis in the manner of a ring or as a sector of a circle.
  • the spray position change sealing contour covers the spray position sealing contour in the circumferential direction of the axis on both sides.
  • the spray position change sealing contour covers the spray position sealing contour in the circumferential direction of the axis on both sides.
  • the spray position change sealing contour preferably extends at least partially along the spray position sealing contour.
  • the Sprühdian flick-sealing contour runs at least in sections along the residual liquid sealing contour and / or along the Sprühdian-sealing contour, wherein at least one sealing element of the sealing means sections the Sprühwolf facial-sealing contour and the residual liquid sealing contour forms and / or the Sprühwolf flick- Forms sealing contour and the spray position sealing contour.
  • the inlet openings of the two nozzle elements designated as the first and second nozzle elements are temporarily arranged both in the spray position sealing area during the spray position change, so that the supply channel can be flown with both supply channels. connected is. It is advantageous if this applies to two nozzle elements and inlet openings of the feed channels assigned to them, which inlet openings are arranged adjacent to one another on the spray unit and which feed channels can be brought into fluid communication with the supply channel when the spray position is changed.
  • the spray unit preferably has three or more nozzle elements and feed channels respectively assigned to them, in particular four nozzle elements and four feed channels.
  • the nozzle elements may preferably comprise at least two of the following:
  • a rain shower with a plurality of radiation-emitting point-like or substantially point-shaped individual nozzles, which are preferably arranged annularly on the spray unit.
  • the spray unit is preferably movably mounted on the housing for changing the spraying positions. The operator is thereby simplified the handling of the spray device.
  • the spray unit is rotatably mounted on the housing about a rotation axis and / or displaceable relative to the housing along a displacement direction.
  • Inlets of feed channels advantageously have the same or substantially the same distance relative to the axis of rotation.
  • the inlet openings move along the same or substantially the same circumference.
  • adjacent inlet openings have the same angular spacing or substantially the same angular spacing with respect to the axis of rotation. This is particularly advantageous if, as explained above, two adjacent feed channels can be understood as first and second feed channels.
  • Inlets of the feed channels are preferably arranged equidistant or substantially equidistant from each other.
  • the sealing device advantageously has sealing elements which delimit one or more sealing contours (s) formed by the sealing device in a line-shaped manner.
  • this can be understood in particular to mean that one or more sealing contours (s) formed by the sealing device have a linear course along their boundary (s).
  • the sealing elements are preferably designed rib-shaped or strip-shaped in order to provide a linear course of sealing contours.
  • the sealing device comprises a carrier element, on which sealing elements for forming one or more sealing contour (s) formed by the sealing device protrude in the direction of the spray unit.
  • a structurally simple embodiment of the sealing device can be achieved in the presence of, in particular, more than just one sealing contour, in particular in the presence of the spray position sealing contour, the spray position change sealing contour and the residual liquid sealing contour.
  • the sealing elements are axially offset from the carrier element, relative to the axis of rotation.
  • the sealing elements are preferably formed integrally with the carrier element.
  • the carrier element is favorably designed as a carrier disk or comprises such.
  • the carrier element is preferably connected between the housing and the spray unit. From the carrier disk, the sealing elements can protrude in the direction of the spray unit.
  • the outlet opening of the supply channel is preferably formed.
  • the spray unit facing the housing has an end face, are arranged at the inlet openings of the feed channels, and when the sealing means is arranged on one of the spray unit facing end side of the housing and sealingly abuts the end face of the spray unit.
  • the sealing device can be connected in this way between the housing and the spray unit. In practice, it is found that even diverse sealing properties, in particular the above-mentioned sealing contours, can be formed by the sealing device in a simpler manner.
  • a particularly planar end face is preferably arranged, in which the inlet openings of the feed channels are formed.
  • the sealing device is preferably fixed to the housing.
  • the spray unit when moving relative to the housing is slidably movable via sealing elements of the sealing device.
  • the sealing elements can protrude from the carrier element in the direction of the spray unit. If the spray unit is moved and in particular rotated, for example, its end face, on which the inlet openings are formed, slides over the sealing elements. In this way, the inlet openings from the Sprüh somehow- sealing area or the Sprüh somehow flick-sealing area emerge and / or enter into this.
  • the spraying device has a biasing element biasing the sealing device in the direction of the spraying unit. This makes it possible to achieve an even better seal between the housing and the spray unit.
  • the biasing element may favorably act on a pressing element, which bears against the sealing device and forms a portion of the supply channel.
  • the biasing force of the biasing element can be defined, for example, surface, or along a contiguous edge, transmitted to the sealing device and thereby an even better sealing effect can be achieved.
  • the pressure element forms a portion of the supply channel.
  • the biasing element is, for example, a coil spring supported on the housing and on the pressure element.
  • the sealing device comprises or forms a receptacle for the pressing element in which it is arranged, and if the sealing device seals the receptacle relative to a housing opening which receives the receptacle and the pressing element.
  • the receptacle is preferably formed to achieve a structurally simple embodiment of the aforementioned carrier element. It is advantageous if the sealing device is designed in one piece in order to achieve a structurally simple design.
  • An advantageous embodiment of the spray device according to the invention is manually operable.
  • the user may provide fluid communication from an inlet of the spray device to the spray unit via a hand-operated control.
  • the spray device can be configured, for example, as a spray gun or as a casting rod.
  • Figure 1 a preferred embodiment of an inventive
  • Spraying device designed as a spray gun
  • FIG. 2 an exploded perspective view of a spray unit of FIG
  • Spray gun and a sealing device of the spray gun
  • FIG. 3 is a perspective view of the sealing device
  • Figure 4 is a schematic representation of a spray position-sealing contour, which is formed by the sealing device
  • Figure 5 is a schematic representation of a Sprühwolf facial-sealing contour, which is formed by the sealing device;
  • FIGS. 7 is a schematic representation of a residual liquid-sealing contour, which is formed by the sealing device.
  • Spray unit is rotatable, wherein the spray unit occupies different positions relative to a housing of the spray gun and from a first spray position (Figure 7) in a second spray position ( Figure 10) is transferred, wherein in Figures 8 and 9 also intermediate positions and in Figure 11 a Position beyond the second spray position are shown.
  • the section is taken along the line 7-7 in FIG. 12.
  • FIG. 12 is a longitudinal sectional view of the spray unit and part of the spray gun body taken along line 12-12 in FIG.
  • FIG. 1 shows an occupied by the reference numeral 10 advantageous embodiment of a spray device according to the invention.
  • the spray device 10 is configured as a manually operated spray gun 12.
  • the spray gun 12 comprises a housing 14, on which a grip device 16 is arranged.
  • a spray unit 18 is further arranged, designed as a spray head, which is rotatably mounted about an axis of rotation 20 on the housing 14.
  • a line not shown in the drawing can be connected to the spray gun 12, a liquid, in particular water supply. Water may flow through the spray gun 12 upon actuation of an actuator 24, which is coupled to a valve unit, not shown in the drawing, and sprayed by the spray unit 18.
  • the housing 14 forms for the water a supply channel 26, the spray unit 18 facing portion in Figure 12 is shown in sections.
  • the supply channel 26 has a water-acted portion 28 which is fluidly connected by a connection, not shown in the drawing with a portion 30.
  • the section 30 is formed by a housing opening 32 which is arranged on one of the spray unit 18 facing end face 34 in the housing 14.
  • the spray unit 18 has a plurality of nozzle elements. With the nozzle elements, different spray patterns of the sprayed water can be provided.
  • a total of four nozzle elements are provided, including a ceremonistrahldüse 36, a mist nozzle 38, a flat jet nozzle 40 and a rain shower 42.
  • the rain shower 42 includes a plurality of individual punctiform or substantially point-shaped openings, with respect to the rotation axis 20 annular to an end surface 44 of the spray unit 18 are arranged.
  • the ceremonistrahldüse 36, the mist nozzle 38 and the flat jet nozzle 40 are arranged in the same radius on the end surface 44, within a ring formed by the individual nozzles of the rain shower 42.
  • Reference numerals 46, 48, 50 and 52 designate the spot jet nozzle 36, the mist nozzle 38, the flat jet nozzle 40 and the rain shower 42 as nozzle members.
  • the nozzle elements 46 to 52 are assigned a respective feed channel for supplying water in the spray unit 18.
  • a respective feed channel has an inlet opening for water.
  • the nozzle element 46 is assigned a feed channel 54 with an inlet opening 62, the nozzle element 48 a feed channel 56 with an inlet opening 64, the nozzle element 50 a feed channel 58 with an inlet opening 66 and the nozzle element 52 a feed channel 60 with an inlet opening 68.
  • the inlet openings 62 to 68 are arranged on an end face 70 of the spray unit 18, which faces the housing 14.
  • the spray unit 18 comprises a presently in particular planar end face 72.
  • the inlet openings 62 to 68 are arranged in the same radius with respect to the axis of rotation 20.
  • the inlet openings 62 to 68 are uniform from spaced apart, d. H. adjacent inlet openings 62 to 68 each have the same angular distance with respect to the axis of rotation 20 from each other.
  • the feed channels 54 to 60 extend parallel to the axis of rotation 20 and preferably at the same angular distance and radius from each other with respect to the axis of rotation 20.
  • the inlet opening 62 is regarded as the first inlet opening, the feed channel 54 as the first feed channel and the nozzle element 46 as the first nozzle element.
  • the inlet opening 64 is regarded as the second inlet opening, the feed channel 56 as the second feed channel and the nozzle element 48 as the second nozzle element.
  • This definition is not restrictive in the present case; adjacent inlet openings 62 to 68 as first and second inlet openings and their associated nozzle elements 46 to 52 could be regarded as first and second nozzle elements.
  • the spray gun 12 For sealing between the housing 14 and the spray unit 18, the spray gun 12 comprises a sealing device 74.
  • the sealing device 74 is connected between the housing 14 and the spray unit 18 and contacts the end face 72 of the spray unit 18 on the one hand and on the front side 34 of the housing 14 on the other hand arranged ( Figure 12).
  • the sealing device 74 comprises a carrier element 76, which in the present case has a disc-shaped design, in particular as an annular disc.
  • a bearing element 80 which acts on the spray unit 18, passes through the opening 78 and is held in the housing 14.
  • the bearing element 80 serves for the rotatable mounting of the spray unit 18 on the housing 14.
  • the sealing device 74 is fixed on the housing 14 via the bearing element.
  • a receptacle 82 From the support member 76 is in the direction of the interior of the housing 14, a receptacle 82 from.
  • the receptacle 82 has a relation to the axis of rotation 20th approximately circular segmental shape and is approximately kidney-shaped.
  • the receptacle 82 has a wall 84.
  • the wall 84 holds another opening 86.
  • a circumferential sealing element 88 in the form of a sealing bead is formed on the wall 84.
  • the opening 86 is formed in the carrier element 76 at a distance from the axis of rotation 20 and at a distance from the outer edge of the carrier element 76.
  • the spray gun 12 comprises a biasing member 90 for urging the sealing device 74 with a directed onto the end face 72 biasing force.
  • the biasing member 90 is acted upon for this purpose a pressing element 92, which in turn is supported on the sealing device 74 on the side facing away from the spray unit 18 side.
  • the biasing member 90 is configured as a compression spring 94, which is supported on the housing 14 and the pressure element 92.
  • the pressing element 92 is preferably inserted in a form-fitting manner in the receptacle 82 of the sealing device 74.
  • a through hole 96 is formed, which is aligned with the opening 86 of the support member 76.
  • the provision channel 26 is formed, following the sections 28 and 30, through the passage opening 96 in the pressure element 92.
  • the opening 86 is an outlet opening of the supply channel 26 for water, which is supplied to the spray gun 12.
  • FIGS. 3 to 6 show sealing elements of the sealing device 74 and a plurality of sealing contours formed by the sealing device 74.
  • sealing elements of the sealing device 74 From the support member 76 are in the direction of the end face 72 sealing elements of the sealing device 74 from.
  • an existing flow connection can be sealed from the supply channel 26 to a respective nozzle element 46 to 52 occupying the spray position Inlets 62 to 68 relative to each other and the spray unit 18 to the housing 14, which will be discussed in the following.
  • the sealing device 74 has two sealing elements 98 and 100 extending in the circumferential direction of the axis of rotation 20 and radially spaced from each other.
  • the sealing element 98 is arranged radially on the outside, preferably on the edge of the carrier element 76.
  • the sealing element 100 is arranged radially on the inside, in particular on the edge of the opening 78.
  • Both sealing elements 98, 100 are preferably closed in the circumferential direction of the axis of rotation in itself.
  • the sealing elements 98, 100 are circular edge-shaped.
  • the sealing device 74 further comprises four radially extending sealing elements 102, 104, 106 and 108.
  • the sealing elements 102 to 108 connect the sealing elements 98 and 100 and extend radially with respect to the axis of rotation 20.
  • the sealing elements 102 and 104 are arranged between the sealing elements 106 and 108, relative to the circumferential direction of the rotation axis 20.
  • the sealing elements 102 and 104 have an angular distance with respect to the axis of rotation 20 of, for example, about 50 ° to 60 °.
  • the sealing elements 106 and 108 have an angular spacing of, for example, about 110 ° to 120 °.
  • the angular distance of the sealing element 106 from the sealing element 102 is equal or substantially equal to the angular distance of the sealing element 108 from the sealing element 104.
  • the sealing elements 98 to 108 are present rib or strip-shaped. As a result of the rib-shaped or strip-shaped design of the sealing elements 98 to 108, the sealing contours explained below, which are formed by the sealing device 74, have a linear or essentially linear course at their boundaries.
  • the spray unit 18 and the respective nozzle element 46 to 52 can assume different spray positions.
  • a spray position of a nozzle member 46 to 52 there is a flow connection through the supply channel 26 and the nozzle member 46 to 52 respectively associated Feed channel 54 to 60 through, so that water from the respective nozzle member 46 to 52 can be sprayed.
  • the spray position can be changed.
  • the inlet openings 62 to 68 are sealed relative to each other by means of the sealing device 74 in different ways.
  • the sealing device 74 forms a residual liquid-sealing contour 110, which is shown schematically in Figure 6.
  • the residual liquid sealing contour 110 is annular and radially outside of the sealing element 98 and radially inwardly bounded by the sealing element 100.
  • the sealing device 74 is dimensioned such that the inlet openings 62 to 68 and the outlet opening 86 are all arranged within the residual liquid sealing contour 110 between the sealing elements 98, 100 (FIGS. 7 to 11). This is the case regardless of which nozzle element 46 to 52 assumes a spray position and whether a change takes place between Sprühwolfen.
  • the sealing elements 98, 100 are radially sealing on the end face 72 in the axial direction. Water in the spray gun 12 between the inlet 22 and the nozzle elements 46 to 52 can not escape between the housing 14 and the spray unit 18 in this way. This is also the case when the supply channel 26 is acted upon by pressure supplied by him water. At most, water penetrates through the nozzle elements 46 to 52 at the outlet of the spray unit 18 to the outside.
  • the handling of the spray gun 12 is improved because unwanted leakage of liquid between the spray unit 18 and the housing 14 is avoided.
  • the sealing device 74 further defines a spray position sealing contour 112.
  • the spray position sealing contour 112 is shown schematically in FIG. 4 and in the present case is a circular ring segment.
  • the spray position sealing contour 112 is bounded radially on the outside by a section 114 of the sealing element 98 and radially inwardly by a section 116 of the sealing element 100. In the circumferential direction of the axis of rotation 20, the spray position sealing contour 112 is limited by the sealing elements 102 and 104.
  • the spray position sealing contour 112 serves to seal the inlet openings 62 to 68 outward relative to the other inlet openings 62 to 68, when a respective nozzle element 46 to 52 occupies a spray position. This allows the flow connection to be sealed.
  • the sealing device 74 further forms a Sprüh ein flick-sealing contour 118, which is shown in Figure 5.
  • the spray position change sealing contour 118 is formed in a circular ring segment. Radially on the outside and radially on the inside, sections 120 of the sealing element 98 or 122 of the sealing element 100 delimit the spray position change sealing contour 118. In the circumferential direction of the rotation axis 20, this is limited by the sealing elements 106 and 108.
  • the Sprühdian crisp-sealing contour 118 extends in the circumferential direction of the rotation axis 20 over a larger angular range than the Sprüh ein- sealing contour 112 due to the relative arrangement of the sealing elements 106 and 108 on the one hand and 102 and 104 on the other.
  • the spray position change sealing contour 118 extends in the circumferential direction of the rotation axis 20 on both sides of the spray position sealing contour 112. In particular, the spray position change sealing contour 118 covers the spray position sealing contour 112.
  • a spray position change sealing area 124 enclosed by the spray position change sealing contour 118 encloses a spray position sealing area 126 surrounded by the spray position sealing contour 112.
  • the spray position sealing region 126 is part of the spray position change sealing region 124.
  • the spray position sealing region 126 and the spray position change sealing region 124 are part of a presently annular residual liquid sealing region 128 surrounded by the residual liquid sealing contour 110.
  • the residual liquid sealing contour 110 covers the spray position change sealing contour 118 and the spray position sealing contour 112.
  • the sealing elements 98 and 100 contribute to the formation of both the spray position sealing contour 112 and the spray position change sealing contour 118 and the residual liquid sealing contour 110 at least in each case in sections.
  • the sealing contours 112, 118 and 110 each extend along a common section 114 or 116 as well as 120 or 122.
  • a structurally particularly advantageous embodiment can be achieved thereby.
  • FIG. 7 shows a position of the spray unit 18 in which the nozzle element 46 (point jet nozzle 36) assumes a spray position.
  • the first inlet opening 62 is arranged in the spray position sealing area 126, bordered by the spray position sealing contour 112.
  • the position of the outlet opening 86 of the supply channel 26 is indicated by a dashed line.
  • the spray position sealing contour 112 seals the first inlet opening 62 from the further inlet openings 64 to 68, in particular the second inlet opening 64.
  • the residual liquid sealing contour 110 prevents the escape of water possibly still contained in the feed channels 56 to 60 (for example after a spray pattern change) the housing 14 and the spray unit 18th
  • FIGS. 8 and 9 show the change from the spray position of the nozzle element 46 to the spray position of the nozzle element 48 and vice versa.
  • the spray unit 18 is rotated about the axis of rotation 20 relative to the housing 14.
  • the end face 72 slidably moves over the seal members 98 to 108.
  • the first entrance opening 62 exits from the spray position seal area 126, and the second entrance opening 64 enters the spray position seal area 126.
  • the spray position sealing contour 112 is dimensioned in relation to the angular spacing of the inlet openings 62 and 64 such that the inlet opening 64 already enters the spray position sealing area 126 when a section of the inlet opening 62 is still arranged in the spray position sealing area 126 (FIG. 9).
  • the spray position change sealing contour 118 seals the inlet openings 62 and 64 relative to the further inlet openings (here 66 and 68; ). Both inlet openings 62 and 64 are arranged within the spray position change sealing area 124, the further inlet openings 66 and 68 outside the spray position change sealing area 124.
  • the spray position change sealing contour 118 seals so that during the spraying position change no water from the supply channel 26 undesirably exits through other than the inlet openings 62 and 64, not present through the inlet openings 66 and 68.
  • the nozzle elements 50 and 52 therefore no water exits.
  • the residual liquid sealing contour 110 also prevents the escape of water between the housing 14 and the spray unit 18 in this case.

Landscapes

  • Nozzles (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)

Abstract

L'invention concerne un dispositif de pulvérisation, notamment pour arroser des espaces verts, comprenant un boîtier (14), dans lequel est disposé ou formé un conduit d'alimentation destiné à du liquide, et une unité de pulvérisation (18) maintenue mobile sur le boîtier (14) pour pulvériser un liquide, laquelle unité de pulvérisation (18) comporte au moins deux éléments buses (46, 48, 50, 52) et présente au moins deux conduits d'amenée (54, 56, 58, 60) destinés à du liquide, chaque conduit d'amenée étant associé à un élément de buse (46, 48, 50, 52) correspondant et étant relié de manière à être en communication fluidique avec cet élément de buse (46, 48, 50, 52), différentes configurations de pulvérisation étant possibles avec les éléments buses (46, 48, 50, 52), et la configuration de pulvérisation étant modifiable par déplacement de l'unité de pulvérisation (18) par rapport au boîtier (14). Le conduit d'alimentation (26) est relié de manière à être en communication fluidique avec le conduit d'amenée associé (54, 56, 58, 60) dans une position de pulvérisation d'un élément de buse correspondant (46, 48, 50, 52). L'objectif de l'invention est d'obtenir un dispositif de pulvérisation de ce type, qui soit simple à manipuler. A cette fin, selon l'invention, un dispositif d'étanchéité (74) forme un contour d'étanchéité (112) en position de pulvérisation, qui borde, dans une zone d'étanchéité (126) de la position de pulvérisation, une ouverture de sortie (86) du conduit d'alimentation (26), et qui borde, dans la position de pulvérisation d'un élément de buse correspondant (46, 48, 50, 52), l'ouverture d'entrée (62, 64, 66, 68) de ce conduit d'amenée associé (54, 56, 58, 60) pour établir une communication fluidique étanche, l'ouverture d'entrée (62, 64, 66, 68) de l'autre conduit d'amenée (54, 56, 58, 60) se trouvant hors de la zone d'étanchéité (126) de la position de pulvérisation; et le moyen d'étanchéité (74) forme un contour d'étanchéité (110) pour le liquide résiduel, qui borde l'ouverture d'entrée (62, 64, 66, 68) d'un autre conduit d'amenée (54, 56, 58, 60) dans une zone d'étanchéité (128) destinée au liquide résiduel, afin de réaliser une étanchéité entre le boîtier (14) et l'unité de pulvérisation (18).
EP15715735.5A 2015-04-13 2015-04-13 Dispositif de pulverisation Active EP3283227B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2015/057989 WO2016165738A1 (fr) 2015-04-13 2015-04-13 Dispositif de pulvérisation

Publications (2)

Publication Number Publication Date
EP3283227A1 true EP3283227A1 (fr) 2018-02-21
EP3283227B1 EP3283227B1 (fr) 2020-04-01

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EP15715735.5A Active EP3283227B1 (fr) 2015-04-13 2015-04-13 Dispositif de pulverisation

Country Status (4)

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EP (1) EP3283227B1 (fr)
CN (1) CN107405632A (fr)
TW (1) TWI626996B (fr)
WO (1) WO2016165738A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20210077799A1 (en) * 2018-04-16 2021-03-18 Renovacare Sciences Corp. Spray deposition system and its use for treating a living being
DE102018109980A1 (de) 2018-04-25 2019-10-31 Alfred Kärcher SE & Co. KG Sprühvorrichtung
GB2582363B (en) * 2019-03-21 2023-04-05 Exel Ind Sa Pressure sprayer nozzles
TWI731709B (zh) * 2020-06-10 2021-06-21 源美股份有限公司 噴灑水槍之控制裝置

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3998390A (en) * 1976-05-04 1976-12-21 Associated Mills, Inc. Selectable multiple-nozzle showerhead
US5100055A (en) * 1989-09-15 1992-03-31 Modern Faucet Mfg. Co. Spray valve with constant actuating force
US5566886A (en) * 1995-01-27 1996-10-22 Yuan Mei Corp. Gardening-used variational sprinkling head with fully discharging openings
US5823442A (en) * 1996-04-22 1998-10-20 Guo; Wen-Li Spray nozzle
US6508415B2 (en) * 2001-05-16 2003-01-21 Wang Tzu-Meng Spray head with a pivot nozzle
EP1728556B1 (fr) * 2005-05-30 2009-05-13 Chen, Ho-Chin Dispositif pour changer la forme du jet d'une buse de jardin
CN101147900A (zh) * 2007-10-26 2008-03-26 周华松 花洒功能切换结构
CN202621329U (zh) * 2012-03-08 2012-12-26 欣宇科技（福建）有限公司 一种旋转切换功能花洒
US9687859B2 (en) * 2012-11-16 2017-06-27 Kohler Co. Shower device
CN103212501B (zh) * 2013-04-16 2015-09-09 宁波大叶园林科技有限公司 手自一体切换型水枪
EP3513879A1 (fr) * 2013-06-13 2019-07-24 Water Pik, Inc. Pomme de douche ayant un mécanisme d'obturation entraîné par turbine
CN203842733U (zh) * 2014-04-04 2014-09-24 路达(厦门)工业有限公司 多水路切换花洒

Also Published As

Publication number Publication date
EP3283227B1 (fr) 2020-04-01
TWI626996B (zh) 2018-06-21
WO2016165738A1 (fr) 2016-10-20
TW201700178A (zh) 2017-01-01
CN107405632A (zh) 2017-11-28

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