EP0698417B2 - Arroseur pour la distribution d'un fluide - Google Patents

Arroseur pour la distribution d'un fluide Download PDF

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Publication number
EP0698417B2
EP0698417B2 EP95112644A EP95112644A EP0698417B2 EP 0698417 B2 EP0698417 B2 EP 0698417B2 EP 95112644 A EP95112644 A EP 95112644A EP 95112644 A EP95112644 A EP 95112644A EP 0698417 B2 EP0698417 B2 EP 0698417B2
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EP
European Patent Office
Prior art keywords
sprinkler
conduit
liquid
gear
sprinkler according
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP95112644A
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German (de)
English (en)
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EP0698417A3 (fr
EP0698417A2 (fr
EP0698417B1 (fr
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Gardena Manufacturing GmbH
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Gardena Manufacturing GmbH
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B3/00—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements
    • B05B3/003—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with braking means, e.g. friction rings designed to provide a substantially constant revolution speed
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B3/00—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements
    • B05B3/02—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements
    • B05B3/04—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements driven by the liquid or other fluent material discharged, e.g. the liquid actuating a motor before passing to the outlet
    • B05B3/0417—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements driven by the liquid or other fluent material discharged, e.g. the liquid actuating a motor before passing to the outlet comprising a liquid driven rotor, e.g. a turbine
    • B05B3/0425—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements driven by the liquid or other fluent material discharged, e.g. the liquid actuating a motor before passing to the outlet comprising a liquid driven rotor, e.g. a turbine actuated downstream of the outlet elements
    • B05B3/0426—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements driven by the liquid or other fluent material discharged, e.g. the liquid actuating a motor before passing to the outlet comprising a liquid driven rotor, e.g. a turbine actuated downstream of the outlet elements the liquid driven rotor being a deflecting rotating element

Definitions

  • the invention relates to a sprinkler according to the.
  • a liquid in particular water
  • the fluid is expediently emitted approximately horizontally or obliquely upward from the fluid outlet to the free and then passes under the discharge energy via a curved trajectory on the ground.
  • the sprinkler is designed as a circular sprinkler which, by means of one or more rotating guide bodies, distributes the water around it in a circular arc, the circular arc having a bow or sector angle of less than 360 °, for example. at most 45 °, has.
  • the water is fanned out during the exit of the sprinkler by the baffle arrangement, e.g. first divided into groove-like Leitkanälen to individual and adjacent in the arc direction, separate water jets or fanned. Thereafter, these rays can be fanned out or divided by disruptive elements or the like. If the rotation or another movement of the guide body transversely to the water jet is too fast, it will be too much scattered and the range of action will decrease accordingly. If the movement speed depends on the pressure of the tap water supplied to the sprinkler, these disadvantages increase with the water pressure.
  • GB-A-2 166 669 shows sprinklers comprising either free-flow guide bodies or guide bodies which are driven synchronously without relative movement. Control means for changing the throwing arc of the exiting water jet are not provided within the sprinkler.
  • the guide flanks of the guide body are flat in cross section, namely formed by grooves which have constant width over their entire length and depth.
  • Another sprinkler is known from EP-A-339 966.
  • the invention is also based on the object to provide a sprinkler in which disadvantages of known embodiments or the type described are avoided and in particular at least partially independent of the supplied water pressure high efficiency or accurately determinable a large irrigation density and a large irrigation range on different sized irrigation sectors guaranteed.
  • Two bodies or surfaces influencing the flow of the fluid may have a relative movement relative to one another in the approximately uniformly continuing discharge operation. This results in constantly changing relative positions of the two bodies to each other.
  • the or the water jets are constantly fanned or scattered differently when leaving the sprinkler.
  • the speed of the relative movement can be approximately constant or free from abrupt changes in the constant discharge operation and / or in the start-up phase.
  • both guide bodies continuously execute a respectively rectified or continuous or other working movement relative to a base or main body of the sprinkler.
  • the upstream guide body or water jet parts have a much lower and possibly zero moving speed than the immediately following guide body, which takes over the water jets directly from the upstream guide body.
  • This downstream guide body has the last surfaces, which can be acted upon by the water before it is released from the sprinkler in the trajectory.
  • the movement of the downstream guide body can be at least 10 to 20 or. be at least 30 or 40 times faster than the upstream guide body. The latter gives the respective water jet bundled relatively strong, and the downstream guide body is relatively energized acted upon or driven by the water jets.
  • the water jets can be performed on the upstream guide body so that they exert on this by recoil a drive torque in the sense of his working movement, whereby the efficiency is further increased.
  • More than two guide bodies arranged downstream of one another in the flow direction and moving constantly or intermittently with respect to the main body may be used, for example. be provided of the two types mentioned. It is also advantageous to combine only two guide bodies in a discharge head forming the fluid outlet or outlets.
  • a guide body drives a further guide body or determines at least its movement speed, for example, characterized in that the two guide bodies are drivingly connected to each other.
  • the driven guide body can also generate a drive torque.
  • a gear transmission in particular a compact, only two Abicalz Schemee exhibiting reduction gear is provided, which can move one guide body about fifty times slower than the other.
  • the Abcialz Schemee may partially or completely within the downstream guide body, eg one Turbine wheels are located, which forms the widest region of the discharge head and from the water-loaded propulsion surfaces or turbine blades, the water enters the free trajectory.
  • Regardless of the described training means may be provided to increase the shrunken sector reversible in terms of throwing distance and / or the throwing width by an actuating movement or to reduce, in particular without the need for parts removed or added components. Other properties of the fluid jet can thus be changed.
  • the actuating device advantageously has a control surface with mutually directly adjacent, differently sized control openings and a control surface movable relative thereto for the gradual partial or complete closing of the respective control opening.
  • the control openings may have different transverse extensions in the direction of the control movement at least at a boundary approximately equal width or transversely to the control movement.
  • a multi-part closing surface with mutually movable surface parts is sufficient a one-piece closing surface with jointly movable surface parts to fully open the respective control opening or full width, close completely or close only on a part of its transverse extent.
  • the sum of the open flow cross-sections of the control openings can be approximately constant at at least two to all different settings, so that correspondingly constant pressure conditions or flow rates result.
  • the construction according to the invention is suitable both for axially fixed sprinklers and for pop-up sprinklers, in which the discharge head or the base body is mounted on a support axially or in the vertical direction extendable and retractable, e.g. under the effect of the pressure of the water supplied.
  • the adjusting means are expediently provided on the movable unit, in particular directly below the discharge head so that the water flows through the handle and leaves it at its top substantially non-contact, namely guided by the upstream guide body.
  • the sprinkler 1 has a sleeve-shaped or tubular cylindrical base body 2. This is telescopically movable in a shaft-like or similar, but further support 3 movably mounted with one end. At the other, upper end he carries a discharge head 4 for the discharge of water. Immediately adjacent to the over the pipe section of the body 2 projecting head 4, an adjusting device 5 is provided for changing discharge characteristics axially adjacent to the pipe section. This is to set with a sleeve-shaped handle 6 approximately the same outer cross-section as the pipe section of the body 2 and forms a continuous continuation of the pipe section approximately to the bottom of the head 4th
  • the head 4 has a first guide body 7 and a second guide body 8. These are approximately parallel to the axis or the same axis and arranged with their ends facing each other interlocking. They form contiguous longitudinal sections of water ducts.
  • the two guide bodies 7, 8 are connected to each other via a gear transmission 9. This is like the guide body 7, 8 approximately in the axis 10 at least one of the units 2 to 8. This axis 10 is usually aligned approximately vertically in operation.
  • the water is introduced via a fluid inlet 11 provided at the lower end of the unit 2 and / or 3, e.g. supplied via a nondestructive releasably connected hose.
  • the guide body 7 has with its lower ends to the nozzle 13 connected guide surfaces 14, which by appropriate shaping the upwardly flowing water with an initially increasing and then constant pitch at an acute angle to the outside deflect from the axis 10 so that it leaves the guide body 7 directed at about 45 ° obliquely upward.
  • the evenly distributed around the axis 10 baffles 14 are bounded laterally by rib-like projections or blades 15 which are like the baffles of FIG. 2 from Zufluß- to the exit end by a small helical pitch of a few degrees about the axis 10 in the same direction inclined in that the water flowing through under pressure on the guide body 7 causes a drive torque about the axis 10.
  • the baffle 15 has corresponding but approximately parallel to the axis 10 and against the inlet end of the guide body 7 projecting freely turbine blades 16, against which the emerging from the guide body 7 water flows causing a drive torque, which is rectified about the axis 10 to said Drive torque of the guide body 7 is.
  • a portion of each jet of water can escape, while bypassing the guide body 8 or the blade 16 from the guide body 7 directly into the trajectory, while the other part sufficiently drives the guide body 8.
  • a holding member e.g. a bolt or mandrel 17 is provided, which is fixedly held with its shaft end in a lying within the handle 6, sleeve-shaped bracket of the base body 2, wherein the console is axially adjacent to the pipe section of the base body 2 and with this integrally via radial and / or axial ribs connected is.
  • Adjacent and in connection to the upper end face of the bracket of the mandrel 17 is surrounded by a fixed bearing sleeve 18, clamped against the console facing away from the end of the head of the dome 17, so that the bearing sleeve 18 relative to the base body 2 radially and / or axial play is arranged or forms a continuation of the sleeve-shaped console.
  • the guide bodies 7, 8 are rotatably mounted with axially immediately adjacent, approximately equal dimensioned bearings 19, 21 independently of each other on the outer circumference of the bearing sleeve 18 and respectively with a sleeve-shaped hub 22, 23, but the outer circumference of the hub 23 of the guide body 8 eccentric to the axis 10 in the axis 20 parallel thereto.
  • the extent of the eccentricity is substantially smaller than the radius of the hub 23 and the bearing surfaces 19, 21st
  • the guide body 7 has a jacket 24 which is conically widened in the direction of flow at least approximately approximately at an acute angle and has a closed jacket 24 on the outer circumference of which are the guide surfaces 14 or the blades 15 formed integrally therewith.
  • the smallest outer width of the jacket 24 in the region of the nozzle 13 is approximately equal to the outer width of the bearing sleeve 18 and the Lagerfuzaen 19, 21, while provided at the other end largest width is greater than the axial length of the jacket 24, which at this end a cylindrical, may have in a jacket 25 of the guide member 8 engaging end portion.
  • This jacket 25 is approximately cylindrical inside and / or outside and has a length which is substantially smaller than half its width.
  • the free, lower end face of the shell 25 forms a corresponding to the outlet ends of the baffles 14 obliquely continued continuation of these baffles over which the vanes 16 protrude freely projecting axially, they do not protrude beyond the inner circumference, but flush with this and complete along the outer circumference to are guided to an end wall 26, from which the jacket 25 protrudes axially freely.
  • the end wall 26 or a cover covering this forms the uppermost end face of the head 4, wherein the head of the dome 17 rests against the end wall 26 so that thereby the guide body 7, 8 and turn the gear 9 secured axially against the base body 2 together form-fitting manner are.
  • the blades 16 form stiffening ribs for the shell 25 and in turn are reinforced by this, wherein the number of evenly distributed around the axis 10 blades 15, 16 of the two guide body 7, 8 may be approximately equal.
  • the ends of the groove-shaped vanes 14 form a corresponding number, e.g. at least eight or ten, or at most fourteen or eighteen radially outwardly directed water outlets 27, which are axially covered on a part of their axial extension in passing by the blades 16 and are separated from them only by a smallest axial gap 28, namely a small radial clearance. From the outlet 27, the water exits between adjacent blades 16 and against the radially inner axial edges, wherein the blades 16 may be tapered in an acute angle wedge-shaped or blade-like in axial view radially inwardly, so that the water jet through the blade and along the flanks of the blade 16 is divided as it passes through the beam.
  • the guide body 7, 8 delimit a gear chamber 30, which can be opened by axially pulling apart the two guide body 7, 8 in a simple manner, if previously the mandrel 17 has been solved nondestructive.
  • the gear housing 30 is bounded on the periphery only by the jacket 25, on the upper end side of the end wall 26 and only on the lower, opposite end side by the guide body 7.
  • three first, second and third gear members 31, 32, 33 are interleaved with each other, which mesh with each other via sprockets 34, 35, 36.
  • the first, designed as an external rotor driving or braking gear member 31 is provided with a hub 37 to the Axis 20 rotatably mounted on the outer circumference of the hub 23 and is located with an annular disc hub 37 with a shell 39 connecting end wall 38 immediately adjacent to the end wall 26.
  • On the inner circumference of the against the guide body 7 freely projecting jacket 39 is the associated, in the axis 20 lying toothed rim 34 is arranged, wherein the axis 20 rotates in operation about the axis 10, because by the eccentric bearing a crank mechanism 40 is formed, via which the gear member 31 is driven by the guide body 8 and another rotor.
  • the second gear member 32 of this formed in the manner of a planetary gear stage is fixedly connected as a stator to the base body 2 and the bearing sleeve 18 and may be integrally formed therewith.
  • This cup-shaped gear member 32 is located with its end wall between the bearings 19, 21, has a directed against the end wall 38 shell and immediately adjacent to the end wall 38 a radially outwardly projecting annular collar with the associated sprocket 35 on the outer circumference.
  • the ring gear 34 is therefore in the manner of a planetary rotor only in a very limited peripheral area in engagement with the lying in the axis 10 ring gear 35 and the ring gear 36 which axially adjacent to the ring gear 35 engages the ring gear 34 and external teeth on the outer circumference of the Gear member 33 is provided.
  • This sleeve-shaped gear member 33 may be integrally formed with the jacket 24, is located at a radial distance within the shell 24 and projects axially beyond the end or further than the hub 22 which, like the hub 23 axially against the end wall of the gear member 32 is supported.
  • the mutually facing end surfaces of the shells 24, 39 are immediately adjacent to each other and the outer circumference of the gear member 31 and shell 39 extends approximately to the inner periphery of the shell 25, so that there is a radially and axially very compact design.
  • the numbers of teeth of sprockets 34 to 36 may be different, e.g. around a tooth, wherein the external teeth 36 may have fewer teeth than the external teeth 35 and the internal teeth 34. The resulting due to the different number of teeth of the external teeth 35 and 36 different center distance to the internal teeth 34 is compensated by profile displacement in a known manner, so that both external teeth 35 and 36 receive the same center distance to the internal teeth 34.
  • the reduction ratio of the guide body 8 to the guide body 7 can thereby be in the order of 47: 1, so that the guide body 7 is e.g. only a maximum of 20 revolutions per minute.
  • the direction of rotation of the two guide body 7, 8 is the same and rectified as the aforementioned drive torques.
  • the guide body 7, 8 run through the inventive design even at a very low water flow, the speed of the guide body 7 is approximately independent of the water pressure and the water flow rate.
  • the guide body 7 is in fact prevented by braking at too high a speed, wherein the speed of the guide body 8 in continuous operation is proportional to and not faster than the flow rate of the water. The force acting on the guide body 7 by the drive torque would thus give this with a non-braked guide 7 this a much higher speed.
  • the bottom surface 41 of the guide surface 14 can have the aforementioned gradient as far as the exit 27 and at an acute angle, e.g. be flanked at an angle of at most 75 ° and at least 45 °, in particular about 60 °, that the flanks 42 in cross-section approximately symmetrically to a median plane through the bottom surface 41 go.
  • the mutually remote flanks 42 of two adjacent guide surfaces 14 merge into each other via an apex or comb 43 of the associated blade 15 at an acute angle, since this forms the flanks 42 and the groove-shaped guide surfaces 14 separates from each other.
  • the flanks 42 can only begin at an axial distance from the inlet end of the guide surfaces 14, wherein this distance is greater than the radius or diameter of the outer circumference of the jacket 24 in the region of this inlet end and this outer circumference to form an initially closed enveloping current in the manner described acute angle or is progressively conically flared.
  • the respective guide groove 14 is widened in cross-section to the open groove side at least on a part of its height and in particular to the oven groove side, wherein the groove or blade height is zero at the inlet end and steadily increases progressively in the flow direction.
  • the flanks 42 and the respective comb 43 then rise from a zero height or lowest height relative to the outer circumference of the jacket 24 or the bottom surface 41 in height by the fact that the comb 43 at a larger angle or with a greater curvature concave or rectilinear rises and is directed in the exit envelope surface approximately radially to the axis 10.
  • the axial extent or height of the blade 15 can then be smaller than the circumferential distance of the comb 43 of adjacent blades 15 in this region in the region of the outlet 27.
  • Radialansichtz. in cross-section transverse to the flow direction the blades 15 are triangular at an acute angle, their combs 43 may be sharp-edged and / or rounded or flattened.
  • the clear width of the guide surface 14 increases constantly in the flow direction.
  • the adjusting device 5 or other means for regulating the water flow has eight in a row adjacent to an axis 10 arranged openings or control openings 44 to 51, the outlets and / or entries are in a common plane and have distances from each other, which is much smaller as the corresponding extension of the respective Control opening is.
  • the control openings or their inlet or outlet openings along the row in cross-section from a largest opening 44 gradually approximately uniformly to a smallest opening 51 from and are evenly distributed around the axis 10.
  • Their boundaries lying on one longitudinal side of the row are in alignment with each other since they have equal radial distances from the axis 10, while the boundaries facing away therefrom have decreasing distances from the inner boundary and both boundaries are curved about the axis 10.
  • the mutually adjacent or opposite side boundaries of the openings are continuously approximately rectilinear, diverge at the same acute angle to the stepped boundaries and have correspondingly stepped lengths, wherein adjacent side boundaries of adjacent openings parallel to each other and with the small distance from each other.
  • a continuous disk or plate-shaped control member 52 which covers the respective control opening at the inlet and / or outlet accordingly or releases.
  • the continuous flat control surface 53 is provided here only at the inlet sides of the control openings and slides substantially durckdicht finally to mating surfaces, which lie between the control openings and both sides immediately adjacent to the longitudinal sides of the row of openings.
  • the control member 52 has, in the configuration explained with reference to the control openings, stepped control portions 54 to 60 decreasing along a corresponding row from a largest control portion 54 to a minute control portion 60, but at the stepped outer peripheral side respectively approximately the same amount with respect to the peripheral side of the associated control port are set back inwards.
  • the smallest control opening 51 therefore does not need to be assigned a smallest control section.
  • Each control section is larger by about the width of the distance between adjacent control openings with respect to the width of a control opening, on the inner circumference all control sections are jointly continuous around the axis 10 circularly or concavely bounded and the radially outer boundaries of the control sections are concavely curved about the axis 10, and abruptly stepped approximately at right angles to the respective adjacent control section.
  • the control openings 44 to 51 pass through an end wall whose sliding on the control surface 53 side as this control surface is perpendicular to the axis 10 and, fixedly connected to a jacket 61, an actuator forms.
  • the end wall 62 is located at a smaller distance from the upper than the lower end of the integrally formed therewith jacket 61, which forms a control surfaces completely enclosing housing, wherein the control member 52 is located on the underside of the control wall 62.
  • the outer circumference of the jacket 61 forms the handle 6, which in the discharge operation is free between the units 2, 3 and the unit 4 on the other hand, but with respect to this smaller outer width.
  • the adjusting device 5 can be adjusted continuously by turning the handle 6, but expediently several, especially one of the number of control openings 44 to 51 corresponding number of preferred positions by resilient detent tactile determined and determined and only by applying a correspondingly vigorous operation of the handle. 6 to be overcome.
  • all the control openings are released at least in their radially outer area, wherein, except for the smallest control opening 51, the radially inner area is closed by all other control openings and thus only the radially outer area is released as an opened passage cross section 64; the smallest opening 51 can be fully released.
  • the sum of the passage cross-sections 64 then corresponds approximately to the widest to be released or total passage cross section of the largest control port 44, wherein the width of each passage cross-section 64 in the circumferential direction to one or both side boundaries of the associated control port is constant or constant at all control ports approximately equal.
  • the width of each passage cross-section 64 in the circumferential direction to one or both side boundaries of the associated control port is constant or constant at all control ports approximately equal.
  • this arc angle is only 135 °, because the five smallest control ports 47 to 51 completely closed, the two largest control ports 44, 45 radially inside only partially closed and the third largest control port 46 is released to full width. Any control opening can thus be released to full width or closed on an arbitrarily large, radially inner, section.
  • the passage cross section 65 of each released control port 44 to 46 is thus greater than the corresponding passage cross section 64 of FIG. 3, but the sum of all passage cross sections 65 of FIG. 4 is again approximately equal to the sum of all passage cross sections 64 of FIG. 3, which is for each of preferred or latched positions applies. With a decrease in the arc angle or the number or series expansion of the passage cross sections, the individual passage cross section 65 thus increases.
  • the largest control opening 44 may extend to the inner circumference of the jacket 61, while the radial extent of the smallest opening 51 may correspond approximately to the transverse or radial extent of a passage cross-section 64.
  • In the flow direction to the outlet sides includes a common for all control ports 44 to 51, central directional opening 63 of the directional nozzle 13, which continuously uninterrupted annular, on Outer circumference of an axially immediately adjacent to the control openings portion of the end wall 62 and the inner circumference of a fixed mandrel, for example, the integral with the main body 2 firmly connected console for the axle unit 17, 18 is formed.
  • the outer circumference of the directional nozzle 13 has slightly smaller radial distance from the axis 10 than the inner boundaries of the control openings, which are connected via corresponding transverse channels, eg chamfers, directed radially inwardly separately connected to the directional opening 63.
  • the flowing through the flow areas 64, 65 water is guided by the covered by the control member 52 portion of the associated control port radially inward and then deflected transversely or axially into the directional nozzle 13, from which the water only at the set arc angle in the inlet side of the Guide body 7 and the guide surfaces 14 occurs.
  • the outer circumference of the jacket 24 or the guide surfaces 14 corresponds approximately to the inner circumference or the envelope surface of the radially inner boundary of the directional nozzle 13, which could also be formed by individual channels distributed over the circumference.
  • the control member 52 is arranged with a hub axially and / or radially fixed on the outer circumference of the console and sealed against this by a ring seal 66 so that it for disassembly as the units 7, 8, 9, 17, 18, 31, 32, 33, 61, 62 can be pulled up nondestructively.
  • the units 6 and 61, 62 are rotatably mounted with a bearing 67 parallel to the actuating direction opposite or rotatably mounted on the upper end of the body 2 for more than one full turn, wherein the outer periphery of the handle 6 has an approximately continuous continuation of the same outer width , Outer circumference of the base body 2 forms and this projecting with the contrast substantially reduced console upwards over the upper end of its exposed outer shell into the handle 6, in which from above the lower, tapered end of the guide member 7 protrudes.
  • the upper end of the jacket 61 in the discharge operation forms an outer shield of the water guide in the guide body 7, the axial distance from the combs 43 is substantially smaller than half, one-third or one-fourth of its inner width.
  • the sliding bearing 67 includes a seal and a snap connection 68 of the actuating body 6 relative to the upper end of the base body 2, which engages sleeve-shaped in the lower end of the shell 61, forms an annular snap member on the outer periphery and the body 6 against axial withdrawal and substantially axially - and / or radial playrei secures.
  • the body 6 only needs to be mounted axially mounted on the associated end of the base body 2 and axially pressed so that the snap-in connection in the axis 10 initially releases resiliently and then locks by itself form-fitting, in which case the control surface 53 of the preassembled control member 52 at the end wall 62 is functionally correct and resiliently biased under the action of the seal 66.
  • flanks 42 may deviate in cross-section from the planar shape or have flared edge portions 69, 70 transverse to the flow direction and the bottom 41 may deviate from the concave or semicircular shape, e.g. be flat following the transversely or perpendicular to him flank sections 69.
  • These mutually parallel flank portions 69 are substantially lower than the subsequent flank portions 70, which diverge at an angle of about 60 ° uniformly to the crests 43, at least five and at most fifteen times higher than the flank portions 69 may be and each to form a go over the projecting edge in the associated edge portion 69.
  • the flank sections 69 form the side flanks of an approximately rectangular ground groove 71 which is approximately constant up to the outlet 27, which forms the narrowest region of the flow cross section of the entire groove height reaching up to the combs 43 and can in turn have a slightly smaller groove width compared to its groove height.
  • the respective dimensions are at least one millimeter and at most two to three millimeters. It has been shown that the efficiency of the turbines 7, 8 or the throw of the water can be increased and improved by these embodiments, in particular by the combination of a narrowed in cross-section 71 and a contrast, possibly graduated, extended or expanding section 70.
  • FIGS. 1 and 7 are designed as pop-up sprinkler, in which the base body 2 with the head 4 upwards in the working position shown in FIG. 1 stop-limited extendable and down into a lowered position in the carrier 3 is retracted so that the Head 4 and the end wall 26 forms a covering closure for the upper end of the carrier 3 with its radially above the fluid outlet 12 and the blades 16 projecting annular edge.
  • This upper end is formed by a sleeve-shaped end closure 72, which is fastened fixedly in position on the upper end of the carrier 3 via a threaded connection 10 located in the axis 10, with a transverse wall 74 on the outer periphery of the main body 2 sliding ring seal 73 against the upper end of the carrier.
  • the head 4 supplied water acts at the inlet end of the carrier 3 within a corresponding cylinder space on a piston at the lower end of the base body 2.
  • the first gear member 31 is provided instead of a common with two separate engagement or sprockets for the second and third gear members 35, 36, whereby the gear ratio can be arbitrarily increased or decreased.
  • the two sprockets 34a, 34b have by mutual gradation different diameters or numbers of teeth, in which case the sprocket 34a, on which the sprocket 35 eccentrically revolving, a smaller diameter than the sprocket 34b for the corresponding rolling sprocket 36 of the gear member 33 has.
  • the water is discharged at the set arc angle immediately bundled with great throw and fanning with increasing throw distance from the sprinkler head 4 on, so that adjacent water jets cover each other before reaching the bottom, but not by the rotation of the guide body 7 in plan view or only a negligible Curvature or fanning be subjected.
  • All of the components mentioned may consist of plastic or be formed as injection molded parts.

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  • Nozzles (AREA)
  • Catching Or Destruction (AREA)
  • Hydraulic Turbines (AREA)

Claims (11)

  1. Arroseur pour la distribution d'un fluide pour l'arrosage de la végétation avec un corps de base (2), une entrée de fluide (11), une sortie de fluide (12) et un premier et un deuxième corps de guidage (7, 8) pour le fluide, situés entre celles-ci et faisant suite l'un à l'autre en direction d'écoulement, lesquels effectuent pendant le service un mouvement de service de rotation, caractérisé en ce que les corps de guidage (7, 8) sont raccordés entre eux pour la réalisation d'un mouvement relatif l'un par rapport à l'autre à peu près constant ou encore continu au moyen d'un engrenage (9) en roue dentée, le premier corps de guidage (7) ayant une vitesse plus lente que le deux jème corps de guidage (8), characterisé en ce que l'arroseur distribut l'eau dans un arc de cercle avec un angle de moins de 360°.
  2. Arroseur d'après la revendication 1, caractérisé en ce que le premier corps de guidage (7) présente un débouché de fluide (27) orienté contre les surfaces de guidage de fluide (16) du deuxième corps de guidage (8) et un mouvement de service considérablement plus lent par rapport à celui du deuxième corps de guidage (8) et orienté dans la même direction.
  3. Arroseur d'après la revendication 1 ou 2, caractérisé en ce que le premier corps de guidage (7) présente le long d'une étendue longitudinale des surfaces de guidage de fluide (14) produisant une déflection transversale de manière continue.
  4. Arroseur d'après une des revendications précédentes, caractérisé en ce qu'au moins un des corps de guidage (7, 8) est réalisé en tant que rotor de turbine et que le deuxième corps de guidage (8) commande le premier corps de guidage (7) au moyen de l'engrenage (9) en roue dentée.
  5. Arroseur d'après une des revendications précédentes, caractérisé en ce que l'engrenage (9) en roue dentée présente des éléments d'engrenage (de 31 à 33) premiers, deuxièmes et troisièmes étant engagés à entraînement entre eux, dont un premier est engagé à entraînement avec un stator constituant un deuxième élément d'engrenage (32) et en étant fixe par rapport au corps de base (2), et en ce que le premier élément d'engrenage (31) est logé de manière roulante le long du stator (32) ou d'un troisième élément d'engrenage (33).
  6. Arroseur d'après la revendication 5, caractérisé en ce que le premier élément d'engrenage (31) est logé de manière excentrique au moins par rapport à un autre élément d'engrenage (32, 33).
  7. Arroseur d'après la revendication 5 ou 6, caractérisé en ce que le premier élément d'engrenage (31) se trouve en forme de cuvette en substance entièrement à l'intérieur du deuxième corps de guidage (8) et avec une paroi frontale (38) ou encore avec une paroi d'enveloppe (39) à proximité immédiate d'une paroi de recouvrement ou encore d'enveloppe (25, 26) du deuxième corps de guidage (8).
  8. Arroseur d'après une des revendications précédentes, caractérisé en ce que la distribution de fluide est produite le long d'un arc de jet autour d'un axe (10) et que pour la modification de la dimension de l'arc de jet est prévu un dispositif de réglage (5), par lequel l'angle de secteur de l'arc de jet peut être modifié à peu près entre 45° et 360°.
  9. Arroseur d'après la revendication 8, caractérisé en ce que le dispositif de réglage (5) présente des ouvertures de réglage (de 44 à 51) l'une à proximité de l'autre en une rangée et un élément de réglage (52) pouvant être déplacé par rapport aux ouvertures de réglage le long de la rangée dans une direction de réglage et dans un plan de réglage (53) pour la modification de la section transversale de passage (64, 65) ainsi que pour la fermeture de la respective ouverture de réglage (de 44 à 51) prévue en tant qu'ouverture de passage.
  10. Arroseur d'après la revendication 8 ou 9, caractérisé en ce que pour 1'actionnement du dispositif de réglage (5) pour la distribution de fluide est prévu un moyen de maniement (6) situé de manière dégagé, et que le moyen de maniement (6) est décalé en arrière par rapport à la sortie de fluide (12), en étant situé en dehors de la trajectoire balistique de fluide.
  11. Arroseur d'après une des revendications précédentes, caractérisé en ce qu'au moins une surface de guidage (14) d'un corps de guidage (7) est formée par un flanc (42) d'un creux longitudinal et qu'elle présente en section transversale, transversalement par rapport à la direction d'écoulement des sections de flanc (69, 70) décalées l'une par rapport à l'autre, le creux longitudinal formant dans le domaine de fond une rainure (71) avec des flancs de rainure (69) à peu près parallèles et des sections de flanc (70) faisant suite à ceci de manière acutangulaire et divergente.
EP95112644A 1994-08-24 1995-08-11 Arroseur pour la distribution d'un fluide Expired - Lifetime EP0698417B2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4429952A DE4429952A1 (de) 1994-08-24 1994-08-24 Regner zum Austrag eines Fluids
DE4429952 1994-08-24

Publications (4)

Publication Number Publication Date
EP0698417A2 EP0698417A2 (fr) 1996-02-28
EP0698417A3 EP0698417A3 (fr) 1996-12-11
EP0698417B1 EP0698417B1 (fr) 2002-11-13
EP0698417B2 true EP0698417B2 (fr) 2006-01-18

Family

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Application Number Title Priority Date Filing Date
EP95112644A Expired - Lifetime EP0698417B2 (fr) 1994-08-24 1995-08-11 Arroseur pour la distribution d'un fluide

Country Status (7)

Country Link
US (1) US5718381A (fr)
EP (1) EP0698417B2 (fr)
AT (1) ATE227608T1 (fr)
AU (1) AU699756B2 (fr)
DE (2) DE4429952A1 (fr)
ES (1) ES2185677T3 (fr)
ZA (1) ZA957104B (fr)

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Also Published As

Publication number Publication date
ES2185677T3 (es) 2003-05-01
ZA957104B (en) 1996-04-15
ATE227608T1 (de) 2002-11-15
DE59510452D1 (de) 2002-12-19
AU699756B2 (en) 1998-12-17
DE4429952A1 (de) 1996-02-29
US5718381A (en) 1998-02-17
EP0698417A3 (fr) 1996-12-11
AU2855995A (en) 1996-03-07
EP0698417A2 (fr) 1996-02-28
EP0698417B1 (fr) 2002-11-13

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