EP0410198A2 - Arroseur escamotable - Google Patents

Arroseur escamotable Download PDF

Info

Publication number
EP0410198A2
EP0410198A2 EP90113119A EP90113119A EP0410198A2 EP 0410198 A2 EP0410198 A2 EP 0410198A2 EP 90113119 A EP90113119 A EP 90113119A EP 90113119 A EP90113119 A EP 90113119A EP 0410198 A2 EP0410198 A2 EP 0410198A2
Authority
EP
European Patent Office
Prior art keywords
sprinkler
unit
shaft
sprinkler unit
nozzle
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
EP90113119A
Other languages
German (de)
English (en)
Other versions
EP0410198B1 (fr
EP0410198A3 (en
Inventor
Wolfgang Lindermeir
Johann Schäffer
Franz Lopic
Johann Katzer
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.)
Gardena Manufacturing GmbH
Original Assignee
Gardena Kress and Kastner 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 Gardena Kress and Kastner GmbH filed Critical Gardena Kress and Kastner GmbH
Publication of EP0410198A2 publication Critical patent/EP0410198A2/fr
Publication of EP0410198A3 publication Critical patent/EP0410198A3/de
Application granted granted Critical
Publication of EP0410198B1 publication Critical patent/EP0410198B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • B05B15/70—Arrangements for moving spray heads automatically to or from the working position
    • B05B15/72—Arrangements for moving spray heads automatically to or from the working position using hydraulic or pneumatic means
    • B05B15/74—Arrangements for moving spray heads automatically to or from the working position using hydraulic or pneumatic means driven by the discharged fluid

Definitions

  • the invention relates to a sprinkler, the sprinkler unit intended for the water discharge between a working position and a non-use position should preferably be able to be transferred by lifting and lowering, so that it is suitable, for example, for constantly staying in a garden area or the like it must be dismantled when not in use.
  • Such pop-up sprinklers are usually anchored in the ground with a lower end region, connected to a completely covered water pipe below the surface of the earth and at least in the working position project upwards above the ground, for example with a nozzle head.
  • irrigation or irrigation devices are adjustable or adjustable with respect to at least one working characteristic, so that the size of the irrigated area, its location, the irrigation intensity or the like can be adjusted.
  • the water inflow can be changed with a handle which is arranged on a component sunk in the ground, namely a shaft which accommodates the sprinkler unit so that it can be raised and lowered.
  • a handle which is arranged on a component sunk in the ground, namely a shaft which accommodates the sprinkler unit so that it can be raised and lowered.
  • the handle With the handle, the entire shaft could possibly be rotated, which depending on the nature of the ground would be hampered by more or less strong sliding friction with respect to the ground and would also easily lead to contamination.
  • the working characteristics could only be changed to a very limited extent simply by reducing or increasing the water inflow.
  • the invention is also based on the object to provide a pop-up sprinkler of the type mentioned, in which disadvantages of the prior art are avoided and which in particular in multiple or multiple ways to the respective loading raining requirements can be adjusted.
  • the pop-up sprinkler should preferably be easy to handle and secured against unintentional adjustment.
  • the pop-up sprinkler has one or more adjusting devices for changing at least one working characteristic, such as the spray width, the spray density, the spray jet fan-out, the size of the irrigated soil field, the position of this soil field or the like, with at least one handle of at least one element Oil device is at least in one position of the pop-up sprinkler at a distance above the predetermined level of the floor surface, preferably on a component that can be raised and lowered with the sprinkler unit, in particular on the sprinkler unit itself.
  • at least one working characteristic such as the spray width, the spray density, the spray jet fan-out, the size of the irrigated soil field, the position of this soil field or the like
  • the respective handle in particular in the working position of the pop-up sprinkler, is particularly easily accessible, and it is possible to arrange the handle either in such a way that it is encapsulated inaccessible or in the retracted position of the sprinkler unit, or is accessible from the top thereof.
  • At least one handle in the manner of an upper, disc-shaped cover can be arranged at the upper end of the sprinkler unit and, as the case may be, protect a shaft accommodating the sprinkler unit in the lowered position against the ingress of water, dirt or the like, expediently in the manner of a striker cooperates with an upper end cap of the shaft.
  • At least one further handle can be provided directly below the upper end of the sprinkler unit, for example, so that its circumference, which is considerably smaller than that of the sprinkler unit, lies in the area of the outer peripheral surface of the sprinkler unit, so that it is easily accessible after lifting the sprinkler unit and also for several Spray nozzles distributed over the circumference can accommodate several such handles in the same longitudinal region of the sprinkler unit.
  • At least one handle can also be provided below the nozzle head or at least one spray nozzle so that it forms a longitudinal section of the outer circumference or the outer housing of the sprinkler unit in the manner of a ring.
  • a device to be operated with a handle is appropriately provided, the handle being advantageously arranged at the upper end of the sprinkler unit and, in a simple embodiment, being formed by a handle of an actuator can, which is rotatable for setting the adjusting device about a central axis of the sprinkler unit, while it can be reached for the manual lifting of the sprinkler unit from the retracted position.
  • This handle can also be provided to shut off the water flow to the respective spray nozzle or to all spray nozzles, so that the sprinkler unit can then be raised hydraulically even under water pressure without water escaping.
  • each spray nozzle can be connected to the water inflow by switching over.
  • nozzles with different spray characteristics can be provided and, depending on the requirements, can be used either simply by switching over the associated actuating device.
  • Each spray nozzle can also be assigned an actuating device for moving a jet scattering element more or less far approximately radially from the outside into the spray jet leaving the nozzle, this jet scattering element then being fixed in the respectively set position relative to the associated spray nozzle.
  • the spray jet can be used with this jet diffuser are more or less fanned out, whereby both the shape and size of its cross section and its range can be changed.
  • the nozzle opening of the spray nozzle or the jet scattering member is advantageously recessed within an enlarged outlet depression of the sprinkler unit, so that relatively far deflected parts of the spray jet on the inner surface of this depression can again be exposed to a certain concentration.
  • a sprinkler head of the sprinkler unit which has at least one of the spray nozzles, can be automatically pivoted or rotated about a generally approximately vertical central axis of the sprinkler unit during operation, for which purpose a fluid to be sprayed and therefore flowing through the sprinkler unit is expedient or water-powered drive is provided.
  • a hydraulic geared motor similar to that according to patent application P 38 33 984.6, to which reference is made for further details and effects, is preferably used for this purpose, only one end support provided at the lower end of the motor and one end cap provided at the upper end and adjusting rings must be adapted to the subsequent areas of the sprinkler unit.
  • This drive can form a longitudinal section of the sprinkler unit in such a way that the outer circumference of its motor, transmission and control housing and its adjusting rings form the outer circumference of this longitudinal section.
  • the sprinkler head is preferably driven in such a way that, although it can rotate at most over an arc angle of approximately 360 °, it executes a reciprocating rotary movement, the arc angle and position of which relative to the sprinkler axis can be changed manually using one of the adjusting devices mentioned. Since the water supply to the respective spray nozzle leads exclusively through the interior of the drive housing, this does not require any further sheathing.
  • the sprinkler unit according to the invention can be assembled in a simple manner in a modular manner from at least two longitudinal sections, each of which forms a self-contained assembly, these assemblies being able to be plugged together and / or screwed together in the longitudinal direction, if necessary by gluing.
  • An assembly is expediently formed by a base body forming the lower end of the sprinkler unit, which at the same time represents the lower end carrier for the rotatable mounting of the remaining sprinkler unit or the sprinkler head.
  • the drive expediently connects as a further assembly with a water motor which is connected to the base body via a hollow shaft in such a way that it can rotate relative to the latter.
  • Stel lrings are expediently provided as a module for manual adjustment of the associated actuating device. These collars, which surround the hollow shaft, lie between the drive housing and the base body.
  • the sprinkler head is connected as a further assembly, and at the upper end thereof is an assembly which contains at least one of the described operations. All assemblies connect almost seamlessly to each other and have the same outer cross-sections or the same outer diameter, so that there is a relatively smooth outer jacket of the sprinkler unit, over the lower end of which a piston integral with the base body and over the upper end of which the uppermost handle can protrude radially.
  • a device for cleaning and / or lubricating flushing of at least one bearing of the sprinkler unit, in particular the lifting bearing is further provided according to the invention.
  • An upper bearing of the sprinkler unit is expediently provided in the region of its passage through the upper end of the shaft, while the lower bearing counter is formed above the shaft by the reciprocating piston.
  • Said device is designed such that the flushing is blocked in the working position of the sprinkler unit, while in at least one position deviating therefrom, in particular essentially over the entire stroke, it is opened so that part of the water supplied to the pop-up sprinkler is branched off and flushed the bearing gap.
  • the projections only extend so far upwards that they essentially release the piston seal in the upper stroke end position, so that it then closes completely tightly and no further water can pass through.
  • the projections can simultaneously serve in the manner of longitudinal guides for positive locking of the sprinkler unit or its base body relative to the shaft.
  • a drainage valve is proposed for a pop-up sprinkler of the type described or another type, which consists of a very small number of simple components and is not susceptible to faults.
  • This drainage valve expediently has a bolt-shaped valve closing part which is arranged in a drainage hole in the shaft is, so that the valve housing is practically integrally formed with the shaft.
  • a valve spring that opens as a function of pressure depending on the valve spring can be formed directly by a valve seal in the form of, for example, an O-ring, which is curved in the radial view in the relaxed state, so that it can only be transferred from this curved position into its almost uncurved sealing position under prestress.
  • This surrounding the valve closing part and lying between two end faces of the valve closing part and the valve housing, moves the valve closing part in the unpressurized state at least so far towards its open position that a flow gap gapes, into which the water standing in the shaft then penetrates, as a result of which the valve closing part completely can be transferred into its open position.
  • the drainage valve is closed immediately at the start of the water supply. It is also conceivable to provide a separate valve spring for the valve opening.
  • the drainage valve is also suitable for other shafts than for pop-up sprinkler shafts, namely, for example, those shafts which are intended for receiving a water line shut-off valve, a water connection socket or the like.
  • a plug-in connection is particularly suitable for this, the two plug-in parts of which one is formed in one piece with the shaft and the other in one piece with the line to be connected, for example by means of a hose end this line is formed.
  • the connection part of the shaft is formed by a free, in particular radially at the lower end projecting socket or nipple, which has profiles on the outer circumference for securing against the line part to be plugged on.
  • the pop-up sprinkler 1 according to FIGS. 1 and 2 has a sprinkler unit 2, which can be raised and lowered in a shaft 3, for example, which can be arranged almost completely sunk in the ground, which has a vertical central axis 4 common to the shaft 3 and essentially only in the lowered position an annular disk-shaped part protrudes above an upper shaft end.
  • a hydraulic lifting device working against a return spring is provided for lifting in the manner of a lifting cylinder.
  • the upper end of the sprinkler unit 2 forms a sprinkler head 6, while the lower end, which is shorter than half the total height of the sprinkler unit 2, is formed by a base body 8 assigned to the lifting device 5.
  • a rotary drive 7 Between the base body 8 and the sprinkler head 6 is a rotary drive 7, the sprinkler head during Operationally rigid outer body rotates with the sprinkler head 6 relative to the base body 8 about the central axis 4 back and forth by an adjustable angle.
  • the sprinkler head 6 carries three nozzle units 9 which are evenly distributed over the circumference and are sunk relative to its outer circumference at the same height.
  • the axial planes of the nozzle units 9 coincide with the axial planes of the central axis 4, but the nozzle axes rise radially outwards at angles of less than 45 °, so that they spray upwards at an angle.
  • only one of the nozzle units 9 is in operation, to which the sprinkler head can be adjusted by means of an adjusting device 11 by rotating it about the central axis 4.
  • the sprinkler head can also be set so that all nozzles are switched off.
  • the adjusting device 11 has a rotationally fixed to the sprinkler head 6, ring-shaped and cap-shaped handle 10, which essentially forms the upper end of the sprinkler unit 2, which engages as a closure in the interior of the sprinkler head 6 and one adjoining its upper end and via has its outer periphery protruding portion. This overlaps the handle 10 in the lower position of the upper passage of the shaft 3 for the sprinkler unit 2 at most with a small Axi al distance or even axially striking, so that a closing cover of the upper shaft opening is formed.
  • the handle 10, together with the sprinkler head 6, carries in a ring around the central axis 4 a number of adjusting devices 13 corresponding to the number of nozzle units 9, with which the water jet emerging from the associated nozzle unit 9 can be changed with regard to its scatter.
  • Each actuating device 13 has a handle 12 lying eccentrically to the central axis 4 and rotatable about an axis approximately parallel thereto, which is axially secured between the handle 10 and the is arranged opposite this fixed sprinkler head 6.
  • the substantially cylindrical handles 12 extend approximately to the outer circumference of the sprinkler head 6, so that part of their circumference is accessible immediately after the sprinkler unit 2 has been lifted above the respectively associated nozzle unit 9.
  • Another actuating device 16 located at a distance below the nozzle units 9 serves on the one hand to change the angular size of the angle of rotation of the sprinkler head 6 and on the other hand to arbitrarily change the position of the spray field determined by this angle of rotation relative to the central axis 4.
  • the actuating device 16 has a sprinkler head 6 or the outer body of the drive 7 between mutually adjustable stops back and forth rotating eccentric switching arbor, which reverses a double valve through which the water flow flows when it hits the respective stop so that the drive is reversed in the direction of rotation.
  • the stops are provided within two ring-shaped or sleeve-shaped handles 14, 15, which, in the manner of adjusting rings, are axially adjoining in the respective setting position relative to the base body 8 and lie between the upper end and the lower end of the outer body of the drive 7 .
  • the handles 14, 15, like the handles 12, are only accessible after the sprinkler unit 2 has been extended and are then located close to one another above the upper end of the shaft 3. By mutually adjusting the handles 14, 15, the size of the angle of rotation is changed and by adjusting it together Position opposite the central axis 4.
  • the sprinkler head 6 is rotatably mounted on an upwardly projecting bearing shaft 17 by means of a bearing sleeve 18, which is located at the radial distance and is open at both ends, and is axially secured with a securing cover 19 fastened to the upper end of this bearing shaft 17 overlaps the upper end face of the component forming the handle 10 in such a way that the handle 10 projects over its outer circumference with an annular disk-shaped grip ring 20 which forms the said closure.
  • the safety cover 19 is secured against rotation with respect to the bearing shaft 17 and can be easily released with a central screw, so that the individual parts of the actuating devices 10 are easily accessible and can be removed for maintenance or the like.
  • the grip ring 20 has markings related to the nozzle units 9, to which a corresponding countermarking is assigned on the fuse cover 19, the handle 10 snapping resiliently in the respective working rotational position relative to the fuse cover 19.
  • each bearing sleeve 21 On the lower end face of the grip ring 20 4 sleeve-shaped bearing sleeves 21 are formed in a ring around the central axis, onto each of which one of the handles 12 is attached from below and is thereby rotatably mounted.
  • the sleeve opening of each bearing sleeve 21 takes e.g. by hexagonal cross sections, secured against rotation in the manner of a longitudinal guide, a correspondingly profiled head 23 of a cylinder-bolt-shaped beam scattering member 22, which can be moved longitudinally with a e.g. A threaded hole in the bottom of the associated pot-shaped handle 12 passes through the entire length of the threaded section.
  • the upper end of the shaft 3 is closed with an end cap 24 screwed on in the manner of a union nut, which has a passage opening for the sprinkler unit 2.
  • the cylindrical outer jacket 25 of the sprinkler head 6 is fitted from above onto an end cap 26 of the same outside diameter, which in turn is placed on an upper, reduced-diameter end section of the drive housing 27 of the drive 7, which also forms the same outside diameter and forms the bearing shaft 17.
  • the handles 14, 15 in turn have essentially the same outer diameter, which also applies to an adjoining outer jacket 30 of the base body 8.
  • the sprinkler unit 2 is formed by separate and essentially assembled components that are placed in the longitudinal direction, but all of these components together form an almost completely continuous outer surface of constant cross sections in such a way that they successively contribute to guidance in the area of the upper shaft opening.
  • the drive housing 27 is connected in a rotationally fixed manner to an inner hollow shaft 28 which penetrates the handles 14, 15 and which is axially secured and rotatably supported in a bearing sleeve 29 of the base body 8 projecting upward beyond the outer casing 30.
  • This reduction gear is by a in the upper end or within the end cap 26th lying drive rotor driven in the form of a turbine wheel, which is eccentric to the central axis 4, so that the water flowing through the hollow shaft 28 upwards within the drive housing 27 flows through the mentioned, transverse to the central axis 4 next to the reduction gear sealed against the water, and then flows through the direction of rotation valve control drives the drive rotor lying in the axial direction adjacent to the reduction gear and to the valve control, after which the water leaving the drive 7 is fed through the end cap 26 and the hollow shaft 17, which is hollow over part of its length, to the nozzle unit 9 which is set for operation.
  • the handles 14, 15 are mounted on the outer circumference of the bearing sleeve 29, the base body 8 with radial ribs or the like projecting upwards and beyond the outer circumference of the bearing sleeve 29 or the like. Can engage in the ring jacket of the lower handle 15, so that the latter is additionally supported and centered is.
  • the outer jacket 30 has, at a short distance below its upper end, an annular end wall tapering in the shape of a truncated cone.
  • a corresponding sieve body 31 is expediently inserted from below into the jacket 30 of the base body 8 in an easily replaceable or detachable manner so that the entire hollow cross section of the base body 8 is suitable for receiving a correspondingly large sieve body 31.
  • the lifting device 5 has a lifting piston 32 which is formed in one piece with the base body 8 and projects at its lower end beyond the outer circumference of the outer casing 30 and is guided in a form-locked manner relative to the shaft 3.
  • the reciprocating piston 32 has an annular groove 33 open to the outer circumference, in which axial and Ra dialspiel a sealing ring 34 is floating, whose inner diameter is larger than the bottom diameter of the annular groove 33.
  • anti-rotation device 35 for the base body 8 two diametrically opposed axial or longitudinal guides are provided, each of which has a projection 36 projecting beyond the otherwise cylindrical inner surface of the shaft 3 with a longitudinal groove 37 in the middle of its width.
  • the projections 36 do not extend to the upper end of the shaft 3, but only to a height which the longer longitudinal section of the reciprocating piston 32 lying below the annular groove 33 reaches, so that the sealing ring 34 despite the projections 36 in the stroke end position
  • the anti-rotation lock remains free and can seal under the water pressure against the inner circumference of the shaft 3 and the upper groove flank of the annular groove 33.
  • the reciprocating piston 32 has little radial play relative to the shaft 3, so that at least one passage gap for water is formed, the reciprocating piston 32 above and below the annular groove 33 being provided with flats of the outer circumference adapted to the projections 36, but over which guide cams 38 project which engage in the longitudinal grooves 37.
  • the guide cams 38 (FIG. 11) lying above the annular groove 33 lie in the stroke end position above the upper ends of the guide grooves 37, into which the guide cams 38 lying below the ring groove 33 still engage.
  • the upper ends of the projections 36 decrease in height in a ramp-like manner, so that the sealing ring 34 can run off or run unimpeded.
  • the sprinkler unit 2 is mounted only in the area of its lower end with the reciprocating piston 32 and in the area of the upper end of the shaft 3 via a bearing 39 with respect to the shaft 3 and in between essentially without contact with respect to the shaft 3.
  • the bearing 39 has a centering sleeve 40 inserted into the upper end of the shaft 3, which has at the upper end a sleeve-shaped upwardly and downwardly projecting bearing sleeve 41, on which the sprinkler unit 2 can be supported with the said circumferential sections.
  • the bearing sleeve 41 engages in the end cap 24 and has almost the same inner diameter as the passage opening for the sprinkler unit 2, so that both parts contribute to the storage.
  • the handles 12 of the actuating devices 13 lie essentially in the region of the bearing gap formed by these components. Since the handles 12 and their receptacles form gaps as a result of the partly irregular profiles that form them, water can therefore pass upwards in these areas even in the retracted position.
  • the centering sleeve 40 rests with a sleeve jacket 42 on the inner surface of the shaft 3, with the upper end face of the piston 32 striking the lower end of this sleeve jacket 42 in the end stroke position.
  • the centering sleeve 40 is secured in its axial position resting on the upper end of the shaft 3 or on the inner end face of the end cap 24 exclusively by a return spring 43 for the sprinkler unit 2, this return spring 43 surrounding the sprinkler unit 2 on the outer circumference with its upper end between the bearing sleeve 41 and the sleeve jacket 42 is centered on the annular disc-shaped intermediate portion.
  • the lower end of the return spring 43 bears against the upper end face of the lifting piston 32.
  • a sleeve-shaped connecting nipple 44 is provided on the shaft casing 46 of the shaft 3, which is formed in one piece with this and protrudes approximately radially beyond the outer circumference, the outer circumference of which is barbed Ring profile and ring ribs are provided so that an attached hose holds securely even without an additional hose clamp.
  • An inward projecting beyond the shaft casing 46 of the connecting nipple 44 is open upwards between the longitudinal guides or anti-rotation devices 45, so that the water flowing through can flow axially from below against the center of the lower end face of the lifting piston 32, which essentially passes through the lower one End face of the screen body 31 is formed.
  • the projections 36 and longitudinal grooves 37 project down into the channel section 47 formed by the extension.
  • the base flange 45 projecting beyond the circumference of the shaft ensures very good anchoring in the ground so that the shaft 3 essentially projects above the ground only with the end cap 24.
  • the shaft 3 can have protruding, similarly angular profiles that protrude over the outer circumference and then end with the surface of the soil.
  • the sprinkler head 6 or the nozzle units 9 can also be used as sprinklers for other irrigation devices.
  • the bearing sleeve 18 is expediently connected in one piece to the outer casing 25 via a number of housing-like hollow spokes 48 corresponding to the number of nozzle units 9 the whose interior is supplied with water via approximately radially in the shell of the bearing sleeve 18 inlet openings 49.
  • the inflow openings 49 form, with a single, radial transition opening in the hollow jacket section of the bearing shaft 17, a type of slide valve such that the inflow opening 49, which in each case lies in register with the transition opening, supplies only the associated nozzle unit with water.
  • the inflow opening 49 opens into an annular jacket-shaped receiving flange 50 lying on the bottom of the associated hollow spoke 48, to which a complementary plug-in flange 52 is associated at the rear end of the one-piece nozzle body 51 of the associated nozzle unit 9 such that the receiving flange 50 into an annular groove of the plug-in flange 52 and outer boundary jacket of this annular groove engages tightly in an annular groove of the hollow spoke 48 surrounding the receiving flange 50.
  • the nozzle body 51 lies completely within a blind hole depression 53, which surrounds it closely and is formed by the interior of the associated hollow spoke 48, the bottom of which is formed by the receiving flange 50.
  • each nozzle body 51 can be arranged in any of the depressions 53 in an equivalent manner or securely holding.
  • a snap connection is provided in each case, which on the jacket of the nozzle body 51 has a resilient snap latch 54 projecting freely towards the rear with a radially outwardly pointing latch nose, which is assigned a latch opening 55 in the jacket of the recess 53 adjacent to the outer circumference of the bearing sleeve 18.
  • the nozzle body 51 is pressed axially into the recess 53, as a result of which the latch 55 resiliently deflects radially inwards until it jumps into the latch opening 55. In this it is accessible from the upper end of the sprinkler head 6, so that it can be used to release the nozzle body 51 from the bolt opening 55 can be pushed out.
  • the nozzle body 51 Approximately in extension of the snap bar 54, the nozzle body 51 has a ne front end face protruding, tab-shaped and also integrally formed with it projection 56 which is forked at the front end, so that a closely adapted alignment or guide opening 57 for the displaceable receptacle of the beam scattering member 22 is formed.
  • the nozzle body 51 thus, based on its central axis, occupies a single, precisely defined position relative to the nozzle housing receiving it.
  • the outer jacket 25 forms a pocket 58 which is open to its periphery and at the upper end and is partially circular in the axial view and in the lower bottom of which a bore 59 is provided which leads into the depression 53.
  • a bore 59 is provided in each of these pockets 58 which leads into the depression 53.
  • the inside width of the pockets 58 being closely matched to the outside width of the handles 12.
  • a cylindrical extension on the bottom of the respective handle 12 engages in a recess in the bottom of the associated pocket 58.
  • the shaft of the respective beam scattering member 22 is guided in the bore 59 which is aligned with the guide opening 57 and directly adjoins this.
  • the upper lid of the Renger head 6 forming the handle 10 has corresponding pockets 60 on a jacket part projecting beyond its underside and centered on the inner circumference of the outer jacket 25, but which are wider by the jacket thickness of the pockets 58, so that the pockets 58 into the Bags 60 can intervene and the handle 10 is secured against rotation relative to the sprinkler head 6.
  • the handles 12 are axially secured between the opposing bottom surfaces of the two pockets 58, 60, the hexagon socket sleeves 21 projecting freely downward from the bottom surfaces of the pockets 60. After loosening the handle 10, the handles 12 can be removed from the bearing sleeves 21 and the nozzle units 9 can also be easily detached and cleaned, for example.
  • Each nozzle unit 9 or its nozzle body 51 has a single nozzle opening 61, which is designed as a through opening in the axial direction and which merges with the front end face 63 of the nozzle body 51 into an outlet opening 62 which is enlarged in terms of its cross section by virtue of the fact that it extends over part of its circumference approximately radially extending recess 64 adjoins in the end face 63 perpendicular to the nozzle axis 70.
  • the nozzle opening 61 which forms the front end, tapered in axial section, of an approximately hollow spherical rounded transition into it and connected to the associated inflow opening 49, is approximately drop-shaped in axial view such that it is at the top of an approximately semicircular circular boundary 67 and thereon is then delimited in the lower region by a constriction 68 flanked by an V-shaped angle.
  • the recess 64 adjoins this over its full width or with a width corresponding to the diameter of the circular boundary 67 such that the recess 64 forms a radial groove adjoining a peripheral region of the nozzle opening 61.
  • the recess 64 is also tapered at an acute angle in its cross section parallel to an axial plane of the nozzle opening 61, the flanks of the constriction 68 at the associated, radially inner end of the recess 64 coincide with the flanks thereof and the flanks of the constriction 68 thus run obliquely backwards from the front end face 69 to the flank tip with respect to the nozzle axis 70.
  • the nozzle opening 61 thereby forms radially in the area of the constriction 68
  • Neren end of the recess 64 has a recess inlet 66 extending over the associated partial circumference of the nozzle opening, through which part of the water flowing through the nozzle opening 61 reaches the recess 64.
  • the flanks of the constriction 68 of the nozzle opening 61 lying in the recess flanks like the circular boundary 67, form tear-off edges for the water flowing through, at which the water is released from the boundaries of the nozzle opening 61.
  • the upper part of the water jet belonging to the circular boundary 67 remains relatively well bundled to achieve the greatest possible range, while the part of the water jet emerging through the equilateral triangular constriction 68 is fanned out more strongly downward, and the entire water jet is not point-shaped or circular , but strikes the ground in a line at some distance.
  • the lower part of the water jet is not hindered in its fanning out as a result of the depression 64 and is nevertheless guided as a result of the flank angle of the depression 64 to the front end face 63, so that the fanning out can be determined very precisely.
  • the recess 64 is delimited by an end wall up to the front end face 63, so that the associated part of the water jet is also guided here.
  • the greatest width of the nozzle opening 61 transversely to its plane of symmetry coinciding with the central plane of the recess 64 is expediently between approximately one and seven millimeters, in particular between less than three and four millimeters, this nozzle width in the different nozzle units 9 of the sprinkler head in each case by more than is half a millimeter and less than a millimeter in size.
  • all jet scattering members 22 can have the same diameter, such that the jet scattering member acted on the circumference is slightly larger in diameter and larger than the width of a nozzle opening or depression is slightly slimmer than a further nozzle opening or recess.
  • the associated nozzle opening 61 can be closed almost completely at its front end in such a way that a large or a large part of the water entering the nozzle opening 61 through the recess inlet 66 in the associated depression 64 is deflected and emerges through it.
  • the respective recess 64 lies on the side of the associated nozzle opening 61 opposite the guide opening 57 and has a longitudinal extension which is larger than its width.
  • the design according to the invention is particularly suitable for nozzles which are operated with an arrangement deviating from the approximately vertical position of their nozzle axis in such a way that the common center plane of nozzle opening 61 and recess 64 is approximately vertical and the constriction 68 lies below the circular boundary 67.
  • the greater the angle of rotation of the sprinkler head 6, the greater the water throughput through the nozzle is advantageously selected.
  • the handle 10 For latching securing of the sprinkler head 6 in the operating position associated with each nozzle unit 9, the handle 10 according to FIG. 7 has latching cams 71 projecting over an inner circumference, which can snap into latching recesses in the securing cover 19, which are not shown in detail.
  • FIGS. 1 and 8 to 10 also show, in the bottom region of the lifting cylinder formed by the shaft 3 above the base flange 45 there is provided a drainage valve 72 with its valve axis transverse or perpendicular to the central axis 4, which is expediently in the central axis of the connecting nipple 44 or the channel section 47 and thus with regard to the closing force acting on it is located directly in the flow of the inflowing water where this flow is deflected at right angles upwards to the entry under the piston 32.
  • a drainage valve 72 with its valve axis transverse or perpendicular to the central axis 4, which is expediently in the central axis of the connecting nipple 44 or the channel section 47 and thus with regard to the closing force acting on it is located directly in the flow of the inflowing water where this flow is deflected at right angles upwards to the entry under the piston 32.
  • valve bore 43 In a transverse wall which closes the channel sections 47 at the associated end and is formed in one piece with the shaft 3, a valve bore 43 is provided, into which a head-bolt-shaped valve body 64 is snapped axially displaceably between two end positions such that its head 76 lies in the channel section 47.
  • a valve seal 75 in the form of an O-ring is subsequently arranged around the stem of the valve body 74, to which the end face of the said transverse wall is assigned as the valve seat 78.
  • the valve seal 75 is not flat in the relaxed state according to FIG. 10, but curved transversely to its plane, so that it must be resiliently biased to transfer it into its approximately flat closed position.
  • the valve body 74 is provided with a snap member 77 provided on its longitudinally slotted shaft end, which at the same time forms the end stop for the axial movement of the valve body 74 opposite the head 76 or the valve seal 75 and allows the valve body 74 to be removed only by inserting it into the valve bore 73 To install duct section 74 forth.
  • Adjacent to the transverse wall forming the valve seat 74 is the inflow opening 79 provided at the top in the casing of the channel section 47 and opening under the reciprocating piston 32 resting on the rib stops in the lowered position.
  • the water flowing in via the connecting nipple 44 bounces first against the head 76 of the valve body 74, on which it is deflected upwards and at the same time it suddenly presses against the valve seat 78 under the aforementioned preload of the valve seal 75 in such a way that the drainage valve 72 is closed and remains closed under the pressure which builds up further .
  • the sprinkler unit 6 is raised against the force of the return spring 43, for example, up to the working position according to FIG. 2.
  • valve seal 75 presses the head 76 a little way back from the valve seat 78, returning to its curved position according to FIG. 10, so that on two opposite circumferential regions of the valve seal 75 or the valve seat 78 gap through which the water can penetrate into the valve bore 74, which is slightly more than the stem of the valve body 74, and through which it can flow down below the bottom of the lifting cylinder through the hollow base flange 45 into the ground.
  • the valve body 74 can, if necessary, be completely brought into its most open position after the initial gap opening by the valve seal 75 and through which the water in the cylinder chamber is at least partially pressed out through the drain valve 72.
  • the bottom 80 of the cylinder can drop to the inflow opening 79 which is also provided as a discharge opening, so that complete emptying of the cylinder and also of the water in the sprinkler unit 2 is ensured. Since the upper bearing of the sprinkler unit is not complete, at least in the lowered position dig tight, a ventilation opening is formed through which any water remaining in the shaft 3 and the sprinkler unit is not prevented from draining completely.
  • An integrated flushing device 81 is provided for flushing the pop-up sprinkler, in particular parts that may be impaired in their function on the outer circumference of the sprinkler unit 2 before reaching the working or stroke end position or at least for almost the entire stroke, through which a part of the inflowing water between the reciprocating piston 32 and the piston raceway is branched off by a control unit operating in the manner of a valve and is pressed upward between the outer circumference of the sprinkler unit 2 and the cylinder jacket.
  • a circumferential portion of the piston sealing ring 34 is indicated in a partial leakage position, in which it is pressed inward from its circular shape by the projections 36, so that in addition to the longitudinal grooves 37, transition gaps are formed on both sides of the projections 36. If the inflowing water flows from below against the reciprocating piston 32, part of this water can flow up through the transfer gaps and along the longitudinal grooves 37 leading the reciprocating piston 32 upward, so that the longitudinal guides forming the anti-rotation device 35 are cleaned and at the same time water lubrication for the Guide cam 38 results.
  • the height of the projections 36 limited in cross section in the form of a circle decreases at their upper ends by ramping in a ramp-like manner, such that the sealing ring 34 Reaching the stroke end position has just come free from the projections 36 or longitudinal grooves 37 and the transition gaps mentioned are closed again.
  • the transition gaps are also opened and water flows through again, which ensures that the piston guidance is easy to move. Since the material cross section of the sealing ring 34 is smaller than the cross section of the annular groove 33, this is also flushed through. The water can therefore not only pass between the guide cams 38 according to FIGS. 11 and 12 and the longitudinal grooves 37, but also over large parts of the remaining circumference of the lifting piston 32 and thus flush the entire piston raceway in the flow. In this respect, the reciprocating piston 32 can be guided in a virtually contact-free manner with respect to the piston raceway.
  • the flush valve 82 formed by the sealing ring 34 and the projections 36 is not only opened and closed depending on the position, but can be opened even further by increasing the pressure from its position-dependent opening position.
  • the pop-up sprinkler according to the invention is simple in construction, assembly, installation, maintenance, operation and operation of any of its components, as well as being functionally reliable, not susceptible to faults and reacting quickly when the water supply is opened. Since the nozzle units 9 are open in the lowered position to the shaft, at the beginning of the Hu bes also rinsed the inside of the shaft via the nozzle unit 9 which is switched on, the sprinkler head 6 already starting its rotary movement, so that not only the outer circumference of the sprinkler unit 2 is rinsed from top to bottom before leaving the shaft 3, but also when the nozzle units 9 pass through through the upper bearing gap, the boundary belonging to the shaft 3 is pre-cleaned by flushing. In addition, the sprinkler unit 2 is aerated by the nozzles in the retracted position.

Landscapes

  • Nozzles (AREA)
  • Catching Or Destruction (AREA)
  • Sanitary Device For Flush Toilet (AREA)
  • Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
EP90113119A 1989-07-27 1990-07-10 Arroseur escamotable Expired - Lifetime EP0410198B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3924793A DE3924793A1 (de) 1989-07-27 1989-07-27 Versenkregner
DE3924793 1989-07-27

Publications (3)

Publication Number Publication Date
EP0410198A2 true EP0410198A2 (fr) 1991-01-30
EP0410198A3 EP0410198A3 (en) 1991-10-16
EP0410198B1 EP0410198B1 (fr) 1995-03-01

Family

ID=6385916

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90113119A Expired - Lifetime EP0410198B1 (fr) 1989-07-27 1990-07-10 Arroseur escamotable

Country Status (6)

Country Link
EP (1) EP0410198B1 (fr)
JP (1) JPH03143562A (fr)
AT (1) ATE119079T1 (fr)
AU (1) AU644089B2 (fr)
DE (2) DE3924793A1 (fr)
ES (1) ES2068950T3 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0641603A1 (fr) * 1993-09-02 1995-03-08 GARDENA Kress + Kastner GmbH Arroseur, notamment pour l'irrigation de la végétation
DE10300206B3 (de) * 2003-01-08 2004-03-04 Berthold Pelikan Sprinkler zum Berieseln von Rasen- und Agrarflächen
EP2198699A1 (fr) * 2008-12-18 2010-06-23 GARDENA Kress + Kastner GmbH Arroseur
EP2198697A1 (fr) * 2008-12-18 2010-06-23 GARDENA Manufacturing GmbH Arroseur
EP2198698A1 (fr) * 2008-12-18 2010-06-23 GARDENA Manufacturing GmbH Arroseur
CN117837470A (zh) * 2023-02-01 2024-04-09 王雪 一种农业园林自动喷灌装置

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5368229A (en) * 1993-06-17 1994-11-29 L. R. Nelson Corporation In ground pop-up sprinkler with above ground hose connection
DE102009017292B4 (de) * 2009-04-11 2018-10-04 Husqvarna Ab Versenkregner
DE202016101341U1 (de) 2016-03-10 2016-04-13 Kompernaß Handelsgesellschaft mbH Versenkregner

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD4597A (fr) *
US1788492A (en) * 1928-07-19 1931-01-13 Lewen R Nelson Sprinkler nozzle
US2313994A (en) * 1941-07-24 1943-03-16 Akron Brass Mfg Company Inc Spray nozzle
US3107056A (en) * 1961-01-31 1963-10-15 Moist O Matic Inc Sprinkler
US3655132A (en) * 1969-12-17 1972-04-11 Leisure Group Inc Rotary sprinkler
US3674210A (en) * 1970-09-21 1972-07-04 Frank Faragasso Sprinkler housing
US3770203A (en) * 1971-05-26 1973-11-06 D Dyar Spray system
US3758038A (en) * 1972-04-17 1973-09-11 Telsco Ind Hydraulically actuated rotary pop-up sprinkler
US3874588A (en) * 1974-05-28 1975-04-01 Anthony Mfg Corp Apparatus and method for improving water distribution from rotary sprinklers
US4634052A (en) * 1984-11-05 1987-01-06 The Toro Company Adjustable arc sprinkler head
US4752031A (en) * 1987-10-05 1988-06-21 Merrick Vincent A Bubbler assembly
GB2313994B (en) * 1996-06-06 2000-10-04 Ceramaspeed Ltd Radiant electric heater

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0641603A1 (fr) * 1993-09-02 1995-03-08 GARDENA Kress + Kastner GmbH Arroseur, notamment pour l'irrigation de la végétation
DE4329616A1 (de) * 1993-09-02 1995-03-09 Gardena Kress & Kastner Gmbh Regner, insbesondere zur Vegetations-Bewässerung
US5611488A (en) * 1993-09-02 1997-03-18 Gardena Kress & Kastner Gmbh Sprinkler, particularly for watering vegetation
DE10300206B3 (de) * 2003-01-08 2004-03-04 Berthold Pelikan Sprinkler zum Berieseln von Rasen- und Agrarflächen
EP2198699A1 (fr) * 2008-12-18 2010-06-23 GARDENA Kress + Kastner GmbH Arroseur
EP2198697A1 (fr) * 2008-12-18 2010-06-23 GARDENA Manufacturing GmbH Arroseur
EP2198698A1 (fr) * 2008-12-18 2010-06-23 GARDENA Manufacturing GmbH Arroseur
CN117837470A (zh) * 2023-02-01 2024-04-09 王雪 一种农业园林自动喷灌装置

Also Published As

Publication number Publication date
EP0410198B1 (fr) 1995-03-01
DE59008572D1 (de) 1995-04-06
DE3924793A1 (de) 1991-01-31
EP0410198A3 (en) 1991-10-16
AU5992090A (en) 1991-01-31
JPH03143562A (ja) 1991-06-19
ATE119079T1 (de) 1995-03-15
ES2068950T3 (es) 1995-05-01
AU644089B2 (en) 1993-12-02

Similar Documents

Publication Publication Date Title
DE69021893T2 (de) Ausstellbarer, durch den flüssigkeitsstrom angetriebener drehsprenger mit einstellbarem bewässerungsmuster.
DE3833984C2 (de) Regner
EP0698417B1 (fr) Arroseur pour la distribution d'un fluide
DE2911405C2 (de) Massagebrause mit einer Einrichtung zur wahlweisen Erzeugung pulsierender und/oder nicht pulsierender Flüssigkeitsstrahlen
DE60003600T2 (de) Einen gleichmässigen Strahl abgebende Düse für Versenkregner
DE2517243A1 (de) Rasensprenger
DE19634332A1 (de) Beregnungs-Vorrichtung
DE6905187U (de) Bewaesserungsregner
DE10006864A1 (de) Reinigungsdüse
EP0410198B1 (fr) Arroseur escamotable
DE4422749A1 (de) Pumpenschutzventil
DE4419404C2 (de) Rotordüse
DE19629137A1 (de) Steuereinrichtung für ein Fluid, wie Wasser
DE4224664A1 (de) Rotordüse, insbesondere für ein mit Reinigungsflüssigkeit arbeitendes Hochdruckreinigungsgerät
DE4343180A1 (de) Rückspülbares Filter
DE2431513B2 (de) Mit Drosselwirkung arbeitende Fluidabgabevorrichtung
DE1609199A1 (de) Brausekopf
DE10029663A1 (de) Rohrreinigungsgerät
DE2045060A1 (de) Mischbatterie
DE2412748B2 (de) Beregnungsvorrichtung
DE19709120C2 (de) Rotordüse für ein Hochdruckreinigungsgerät
CH672671A5 (fr)
DE3836054C1 (en) Rotor nozzle for a high-pressure cleaning appliance
AT391175B (de) Sanitaeres absperrventil-oberteil
EP0901831A2 (fr) Pistolet à arrêt à commande manuelle pourvu d'une régulation de pression et de débit

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19901205

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH DE ES FR GB IT LI NL SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH DE ES FR GB IT LI NL SE

17Q First examination report despatched

Effective date: 19930402

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE ES FR GB IT LI NL SE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Effective date: 19950301

REF Corresponds to:

Ref document number: 119079

Country of ref document: AT

Date of ref document: 19950315

Kind code of ref document: T

REF Corresponds to:

Ref document number: 59008572

Country of ref document: DE

Date of ref document: 19950406

ET Fr: translation filed
REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2068950

Country of ref document: ES

Kind code of ref document: T3

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19950330

ITF It: translation for a ep patent filed
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Effective date: 19950731

Ref country code: CH

Effective date: 19950731

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20020717

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 20020722

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20020723

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20020724

Year of fee payment: 13

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030710

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030711

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030711

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20040201

EUG Se: european patent has lapsed
NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 20040201

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20040628

Year of fee payment: 15

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20040720

Year of fee payment: 15

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20030711

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050710

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050710

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20050710

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20060331

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20060331

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20060810

Year of fee payment: 17

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20080201