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EP0014670A1 - Improvements in or relating to sprinkling apparatus - Google Patents

Improvements in or relating to sprinkling apparatus Download PDF

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Publication number
EP0014670A1
EP0014670A1 EP80420015A EP80420015A EP0014670A1 EP 0014670 A1 EP0014670 A1 EP 0014670A1 EP 80420015 A EP80420015 A EP 80420015A EP 80420015 A EP80420015 A EP 80420015A EP 0014670 A1 EP0014670 A1 EP 0014670A1
Authority
EP
European Patent Office
Prior art keywords
nozzle
sleeve
liquid
ramp
threads
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP80420015A
Other languages
German (de)
French (fr)
Inventor
Elie Gasparotto
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.)
Berthoud SA
Original Assignee
Berthoud SA
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 Berthoud SA filed Critical Berthoud SA
Publication of EP0014670A1 publication Critical patent/EP0014670A1/en
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/14—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/34—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl

Definitions

  • the present invention relates to improvements made to liquid spreading devices and more particularly, although not exclusively, to those installed on the boom of a spraying apparatus for the purpose of projecting fillets of liquid loaded with fertilizer onto the ground. .
  • the subject of the present invention is a device for spreading liquid in the form of threads which can be added to a conventional nozzle, without transformation of the latter.
  • the nozzles in question which are mainly produced in three different forms, are assembled to a threaded nozzle holder by means of a wing nut which acts on a flange. This nut presses against the end of the nozzle holder, either a pellet having a central perforation, or an element generating a helical movement of the liquid, or even a slot nozzle for producing a flat jet.
  • means are associated with the outlet from one of the above three nozzles for reducing the pressure of the jet in order to transform it into at least one liquid stream. It is understood that it is first necessary to reduce the pressure, then pass the liquid through an orifice long enough so that no spraying takes place at its outlet in the atmosphere. Firstly, a throttle valve is used, placed immediately at the outlet of the nozzle, its bore opening into an expansion chamber; there is then provided a thick transverse wall intended to close said chamber.
  • a spreading ramp 1 in the form of a pipe in which a pressurized liquid is sent.
  • the ramp is provided with a number of nozzles 2 which generate a jet of sprayed liquid, for example by means of a slit nozzle as will be better explained below.
  • a device according to the invention referenced 3 intended for the production of three threads 4, 5, 6 ending in parallel planting lines after having traversed a path of the parabolic kind whose direction is perpendicular to the ground at the end of this path. This avoids variations in the spacing of the outer threads 4 and 6 in the event of different ramp heights.
  • Each of the nozzles 2 is composed of a threaded end piece 7 (fig. 2) integral with the ramp 1 and whose bore 7a communicates with that of this ramp.
  • a slot nozzle 8 is pressed by its flange 8a against the end of the end piece 7.
  • the upper face of this flange is provided with two lugs 8b intended to engage in longitudinal grooves 7b formed in bore 7a. So thanks to the orientation of these grooves the slot of the nozzle is oriented in the desired direction, for example parallel to the geometric axis of the ramp 1.
  • This assembly which is well known in the art, will not be described further of the flange 8a being effected by means of a wing nut such as that 9 shown in FIG. 2 and provided with a shoulder 9a which comes to bear against the underside of the collar 8a.
  • a stepped sleeve 10 with two bores, one upper 10a surrounding the nozzle while the other 10b of smaller diameter determines with the first an annular part 10c .
  • the bottom of the sleeve 10 is closed by a thick transverse partition 10d.
  • a throttle 11 provided with a peripheral collar lla which bears against the annular face 10c of this sleeve.
  • This throttle further comprises a central bore 11b whose diameter is determined so that the pressure of the liquid leaving the nozzle is greatly reduced.
  • the length of the choke 11 is less than the depth of the bore 10b of the sleeve 10 so as to determine at the bottom of the latter an expansion chamber 12.
  • the wall 10d is crossed by a central orifice 13 and by two others oriented obliquely and that have been referenced respectively 14 and 15. Said orifices give rise respectively to threads 5, 4 and 6. It will be noted that said orifices are located in the same diametrical plane of the wall 10d.
  • the sleeve 10 is pressed against the collar 8a of the nozzle 8 by means of the shoulder 9a of the nut which comes to bear under an annular flange 10f formed at the periphery of this sleeve.

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  • Fertilizing (AREA)
  • Nozzles (AREA)

Abstract

A stepped sleeve (10) enclosing a choke (11), which opens into an expansion chamber (12), is associated with the conventional nozzle (8) of a spraying boom. The liquid emerges in thin jets via the orifices (13,14,15) made in a thick wall (10d) which closes the bottom of the sleeve. Fertiliser distributor. <IMAGE>

Description

La présente invention est relative à des perfectionnements apportés aux dispositifs d'épandage de liquide et plus particulièrement bien que non exclusivement, à ceux installés sur la rampe d'un appareil de pulvérisation en vue de projeter sur le sol des filets de liquide chargé en engrais.The present invention relates to improvements made to liquid spreading devices and more particularly, although not exclusively, to those installed on the boom of a spraying apparatus for the purpose of projecting fillets of liquid loaded with fertilizer onto the ground. .

Pour envoyer un tel liquide suivant des lignes parallèles du sol le long desquelles sont effectuées des plantations il est nécessaire d'avoir recours à des dispositifs susceptibles de constituer des filets de liquide. Ces dispositifs peuvent remplacer les buses usuelles montées sur les rampes des appareils pulvérisateurs. Si l'on a affaire à une rampe de grande envergure on doit pratiquer un nombre important de démontages et de remontages en ayant soin d'orienter convenablement les orifices engendrant les filets, de manière que ceux-ci se trouvent par exemple tous contenus dans le plan vertical passant par la rampe. Bien entendu les filets pourraient être prévus obliques par rapport au sol, mais de toute manière il est nécessaire de les orienter afin que lors du déplacement de la rampe ils aboutissent tous à des lignes parallèles tracées sur le sol et perpendiculaires au déplacement précité.To send such a liquid along parallel lines of the ground along which plantings are carried out, it is necessary to have recourse to devices capable of constituting nets of liquid. These devices can replace the usual nozzles mounted on the booms of spraying devices. If we are dealing with a large-scale ramp we must practice a large number of disassembly and reassembly, taking care to properly orient the orifices generating the threads, so that these are for example all contained in the vertical plane passing through the ramp. Of course the nets could be provided oblique to the ground, but in any case it is necessary to orient them so that during the displacement of the ramp they all lead to parallel lines drawn on the ground and perpendicular to the aforementioned displacement.

La présente invention a pour objet un dispositif d'épandage de liquide sous forme de filets qui soit susceptible d'être ajouté à une buse usuelle, sans transformation de celle-ci.The subject of the present invention is a device for spreading liquid in the form of threads which can be added to a conventional nozzle, without transformation of the latter.

Les buses en question qui sont principalement réalisées sous trois formes différentes, sont assemblées à un porte-buse fileté au moyen d'un écrou à ailettes qui agit sur une collerette. Cet écrou plaque contre l'extrémité du porte-buse, soit une pastille comportant une perforation centrale, soit un élément engendrant un mouvement hélicoidal du liquide, soit encore une buse à fente pour la production d'un jet plat.The nozzles in question, which are mainly produced in three different forms, are assembled to a threaded nozzle holder by means of a wing nut which acts on a flange. This nut presses against the end of the nozzle holder, either a pellet having a central perforation, or an element generating a helical movement of the liquid, or even a slot nozzle for producing a flat jet.

Conformément à l'invention on associe à la sortie de l'une des trois buses ci-dessus des moyens de réduire la pression du jet en vue de le transformer en au moins un filet de'diquide. On conçoit qu'il faille tout d'abord réduire la pression, puis faire passer le liquide dans un orifice assez long pour qu'aucune pulvérisation n'ait lieu à son débouché dans l'atmosphère. On utilise ainsi tout d'abord un étrangleur placé immédiatement à la sortie de la buse, son alésage débouchant dans une chambre de détente ; on prévoit ensuite une paroi transversale épaisse destinée à fermer ladite chambre.In accordance with the invention, means are associated with the outlet from one of the above three nozzles for reducing the pressure of the jet in order to transform it into at least one liquid stream. It is understood that it is first necessary to reduce the pressure, then pass the liquid through an orifice long enough so that no spraying takes place at its outlet in the atmosphere. Firstly, a throttle valve is used, placed immediately at the outlet of the nozzle, its bore opening into an expansion chamber; there is then provided a thick transverse wall intended to close said chamber.

Le dessin annexé, donné à titre d'exemple, permettra de mieux comprendre l'invention, les caractéristiques qu'elle présente et les avantages qu'elle est susceptible de procurer

  • Fig. 1 est une vue partielle à petite échelle d'une rampe équipée conformément à l'invention.
  • Fig. 2 est une coupe transversale à grande échelle d'un dispositif d'épandage suivant l'invention.
The appended drawing, given by way of example, will allow a better understanding of the invention, the characteristics which it presents and the advantages which it is capable of providing.
  • Fig. 1 is a partial view on a small scale of a ramp fitted in accordance with the invention.
  • Fig. 2 is a large-scale cross section of a spreading device according to the invention.

On a représenté en fig. 1 l'extrémité d'une rampe d'épandage 1 se présentant sous la forme d'une tuyauterie dans laquelle on envoie un liquide sous pression. La rampe est pourvue d'un certain nombre de buses 2 qui engendrent un jet de liquide pulvérisé, par exemple au moyen d'une buse à fente comme on l'expliquera mieux plus loin. A la sortie de chacune de ces buses 2 est associé un dispositif suivant l'invention référencé 3, destiné à la production de trois filets 4, 5, 6 aboutissant à des lignes de plantation parallèles après avoir parcouru un trajet du genre parabolique dont la direction est perpendiculaire au sol sur la fin de ce trajet. On évite ainsi des variations d'écartement des filets extérieurs 4 et 6 en cas de différentes hauteurs de rampes.There is shown in fig. 1 the end of a spreading ramp 1 in the form of a pipe in which a pressurized liquid is sent. The ramp is provided with a number of nozzles 2 which generate a jet of sprayed liquid, for example by means of a slit nozzle as will be better explained below. At the outlet of each of these nozzles 2 is associated a device according to the invention referenced 3, intended for the production of three threads 4, 5, 6 ending in parallel planting lines after having traversed a path of the parabolic kind whose direction is perpendicular to the ground at the end of this path. This avoids variations in the spacing of the outer threads 4 and 6 in the event of different ramp heights.

Chacune des buses 2 est composée d'un embout fileté 7 (fig. 2) solidaire de la rampe 1 et dont l'alésage 7a communique avec celui de cette rampe. A la manière usuelle une buse à fente 8 est plaquée par sa collerette 8a contre l'extrémité de l'embout 7. La face supérieure de cette collerette est pourvue de deux ergots 8b destinés à venir s'engager dans des rainures longitudinales 7b ménagées dans l'alésage 7a. Ainsi grâce à l'orientation de ces rainures la fente de la buse se trouve orientée dans le sens désiré, par exemple parallèlement à l'axe géométrique de la rampe 1. On ne décrira pas plus avant ce montage qui est bien connu dans la technique, la retenue de la collerette 8a étant effectuée au moyen d'un écrou à ailettes tel que celui 9 représenté en fig. 2 et pourvu d'un épaulement 9a qui vient prendre appui contre le dessous de la collerette 8a.Each of the nozzles 2 is composed of a threaded end piece 7 (fig. 2) integral with the ramp 1 and whose bore 7a communicates with that of this ramp. In the usual manner, a slot nozzle 8 is pressed by its flange 8a against the end of the end piece 7. The upper face of this flange is provided with two lugs 8b intended to engage in longitudinal grooves 7b formed in bore 7a. So thanks to the orientation of these grooves the slot of the nozzle is oriented in the desired direction, for example parallel to the geometric axis of the ramp 1. This assembly, which is well known in the art, will not be described further of the flange 8a being effected by means of a wing nut such as that 9 shown in FIG. 2 and provided with a shoulder 9a which comes to bear against the underside of the collar 8a.

Conformément à l'invention on place autour de la buse 8 et dans son prolongement un manchon étagé 10 à deux alésages dont l'un supérieur 10a entoure la buse tandis que l'autre 10b de plus petit diamètre détermine avec le premier une partie annulaire 10c. Le bas du manchon 10 est fermé par une cloison transversale épaisse 10d.According to the invention, there is placed around the nozzle 8 and in its extension a stepped sleeve 10 with two bores, one upper 10a surrounding the nozzle while the other 10b of smaller diameter determines with the first an annular part 10c . The bottom of the sleeve 10 is closed by a thick transverse partition 10d.

On place dans le manchon 10 un étrangleur 11 pourvu d'un collet périphérique lla qui prend appui contre la face annulaire 10c de ce manchon. Cet étrangleur comporte en outre un perçage central llb dont le diamètre est déterminé de manière que la pression du liquide sortant de la buse soit fortement diminuée. La longueur de l'étrangleur 11 est inférieure à la profondeur de l'alésage 10b du manchon 10 de manière à déterminer au fond de celui-ci une chambre de détente 12. La paroi 10d est traversée par un orifice central 13 et par deux autres orientés obliquement et qu'on a référencé respectivement 14 et 15. Lesdits orifices donnent respectivement naissance aux filets 5, 4 et 6. On notera que lesdits orifices sont situés dans un même plan diamètral de la paroi 10d.Is placed in the sleeve 10 a throttle 11 provided with a peripheral collar lla which bears against the annular face 10c of this sleeve. This throttle further comprises a central bore 11b whose diameter is determined so that the pressure of the liquid leaving the nozzle is greatly reduced. The length of the choke 11 is less than the depth of the bore 10b of the sleeve 10 so as to determine at the bottom of the latter an expansion chamber 12. The wall 10d is crossed by a central orifice 13 and by two others oriented obliquely and that have been referenced respectively 14 and 15. Said orifices give rise respectively to threads 5, 4 and 6. It will be noted that said orifices are located in the same diametrical plane of the wall 10d.

De manière que ce plan se trouve orienté perpendiculairement au sens de déplacement de la rampe, on crée dans le bas de l'alésage 10a du manchon deux saillies 10e diamétralement opposées qui coopèrent avec des méplats 8c de la buse 8. Ainsi lorsque la fente de la buse se trouve parallèle à la rampe 1 le plan des orifices 13, 14, 15 se trouve aussi parallèle à celle-ci puisque le manchon ne peut occuper que deux positions diamétralement opposées.In such a way that this plane is oriented perpendicular to the direction of movement of the ramp, two diametrically opposite projections 10e are created at the bottom of the bore 10a of the sleeve which cooperate with flats 8c of the nozzle 8. Thus when the slot of the nozzle is parallel to the ramp 1 the plane of the orifices 13, 14, 15 is also parallel to the latter since the sleeve can only occupy two diametrically opposite positions.

Le manchon 10 est plaqué contre la collerette 8a de la buse 8 par l'intermédiaire de l'épaulement 9a de l'écrou qui vient prendre appui sous une bride annulaire 10f ménagée à la périphérie de ce manchon.The sleeve 10 is pressed against the collar 8a of the nozzle 8 by means of the shoulder 9a of the nut which comes to bear under an annular flange 10f formed at the periphery of this sleeve.

On observe qu'une fois le montage effectué la buse 8 est maintenue en place par le collet lla de l'étrangleur 11.It is observed that once the assembly has been carried out, the nozzle 8 is held in place by the collar 11a of the throttle 11.

On prévoit avantageusement d'attribuer au filet de l'écrou et à celui de l'embout 7 des longueurs suffisantes pour permettre le montage de la buse 8a seule ou associée à un dispositif suivant l'invention.Advantageously, provision is made to assign to the thread of the nut and to that of the end piece 7 sufficient lengths to allow the mounting of the nozzle 8a alone or associated with a device according to the invention.

Il doit d'ailleurs être entendu que la description qui précède n'a été donnée qu'à titre d'exemple et qu'elle ne limite nullement le domaine de l'invention dont on ne sortirait pas en remplaçant les détails d'exécution décrits par tous autres équivalents. En particulier on notera que le plan vertical contenant les orifices 13, 14, 15 pourrait être orienté obliquement par rapport à celui contenant la rampe. En fait on oriente ainsi ce plan, l'angle de décalage étant avantageusement prévu égal à 30°. On ramène ainsi l'écartement des points d'impact des filets 4 et 6 vers celui du filet central 5 car l'inclinaison des orifices 14 et 15 doit être prévue importante pour engendrer la forme parabolique des filets 4 et 6 si bien que leurs points d'impact sur le sol seraient trop éloignés du centre si le plan des orifices précités était prévu parallèle à la rampe.It should moreover be understood that the above description has been given only by way of example and that it in no way limits the field of the invention from which one would not depart by replacing the execution details described by all other equivalents. In particular, it will be noted that the vertical plane containing the orifices 13, 14, 15 could be oriented obliquely with respect to that containing the ramp. In fact, this plane is thus oriented, the offset angle being advantageously provided equal to 30 °. The spacing of the impact points of the threads 4 and 6 is thus reduced to that of the central thread 5 because the inclination of the orifices 14 and 15 must be large enough to generate the parabolic shape of the threads 4 and 6 so that their points impact on the ground would be too far from the center if the plane of the aforementioned holes was provided parallel to the ramp.

Claims (7)

1. Dispositif d'épandage de liquide adaptable à une buse de pulvérisation usuelle, caractérisé en ce qu'il comporte des moyens de réduire la pression du jet sortant de ladite buse en vue de le transformer en au moins un filet de liquide sans modifier le débit.1. Device for spreading liquid adaptable to a conventional spray nozzle, characterized in that it comprises means for reducing the pressure of the jet leaving said nozzle in order to transform it into at least one stream of liquid without modifying the debit. 2. Dispositif d'épandage de liquide suivant la revendication 1, caractérisé en ce qu'il comprend un manchon tubulaire étagé qui entoure ladite buse et dans lequel est disposé un étrangleur dont l'orifice débouche dans une chambre de détente à partir de laquelle part au moins un trou pratiqué dans une paroi transversale épaisse fermant le bas du manchon précité.2. Liquid spreading device according to claim 1, characterized in that it comprises a stepped tubular sleeve which surrounds said nozzle and in which is arranged a throttle, the orifice of which opens into an expansion chamber from which leaves at least one hole made in a thick transverse wall closing the bottom of the aforementioned sleeve. 3. Dispositif suivant la revendication 2 dont la buse est orientée angulairement par rapport à l'axe du porte-buse fixe, caractérisé en ce que l'alésage supérieur du manchon comporte des saillies coopérant avec des méplats de la buse de manière à fixer seulement deux positions diamétralement opposées de mise en place dudit manchon par rapport au porte-buse.3. Device according to claim 2, the nozzle of which is angularly oriented with respect to the axis of the fixed nozzle holder, characterized in that the upper bore of the sleeve has projections cooperating with the flats of the nozzle so as to fix only two diametrically opposite positions for fitting said sleeve relative to the nozzle holder. 4. Dispositif suivant la revendication 3, caractérisé en ce que l'étrangleur comporte un collet qui prend appui contre l'épaulement intérieur du manchon contre lequel il est maintenu par l'extrémité de la buse.4. Device according to claim 3, characterized in that the throttle comprises a collar which bears against the inner shoulder of the sleeve against which it is held by the end of the nozzle. 5. Dispositif suivant la revendication 4, caractérisé en ce que le manchon comporte une bride périphérique contre laquelle vient porter l'écrou de serrage du dispositif en vue de serrer la buse contre le porte-buse.5. Device according to claim 4, characterized in that the sleeve comprises a peripheral flange against which comes to bear the clamping nut of the device in order to tighten the nozzle against the nozzle holder. 6. Dispositif suivant la revendication 1, susceptible de constituer trois filets, caractérisé en ce que les filets extérieurs ont un trajet dont la partie inférieure est orientée perpendiculairement au sol.6. Device according to claim 1, capable of constituting three threads, characterized in that the outer threads have a path, the lower part of which is oriented perpendicular to the ground. 7. Dispositif suivant la revendication 6, caractérisé en ce que le plan contenant les trois filets est orienté obliquement par rapport à celui contenant la rampe.7. Device according to claim 6, characterized in that that the plane containing the three nets is oriented obliquely to that containing the ramp.
EP80420015A 1979-02-09 1980-01-31 Improvements in or relating to sprinkling apparatus Withdrawn EP0014670A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7903814 1979-02-09
FR7903814A FR2448389A1 (en) 1979-02-09 1979-02-09 IMPROVEMENTS IN LIQUID SPREADING DEVICES

Publications (1)

Publication Number Publication Date
EP0014670A1 true EP0014670A1 (en) 1980-08-20

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EP80420015A Withdrawn EP0014670A1 (en) 1979-02-09 1980-01-31 Improvements in or relating to sprinkling apparatus

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EP (1) EP0014670A1 (en)
FR (1) FR2448389A1 (en)
YU (1) YU20580A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0037747B1 (en) * 1980-02-28 1985-05-22 LAFARGE REFRACTAIRES Société Anonyme Spray nozzle, especially for a fertilizer
GB2241908A (en) * 1987-06-19 1991-09-18 Rhone Poulenc Bv Spray head with angled tubes
EP0501164A1 (en) * 1991-02-11 1992-09-02 FAIP S.r.L. OFFICINE MECCANICHE Ejection nozzle device for high pressure cleaning apparatus
WO2003017748A1 (en) * 2001-08-13 2003-03-06 Hardi International A/S A nozzle

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2116973A5 (en) * 1970-12-09 1972-07-21 Berthoud Sa
FR2188461A5 (en) * 1972-06-15 1974-01-18 Berthoud Sa

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2116973A5 (en) * 1970-12-09 1972-07-21 Berthoud Sa
FR2188461A5 (en) * 1972-06-15 1974-01-18 Berthoud Sa

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0037747B1 (en) * 1980-02-28 1985-05-22 LAFARGE REFRACTAIRES Société Anonyme Spray nozzle, especially for a fertilizer
GB2241908A (en) * 1987-06-19 1991-09-18 Rhone Poulenc Bv Spray head with angled tubes
EP0501164A1 (en) * 1991-02-11 1992-09-02 FAIP S.r.L. OFFICINE MECCANICHE Ejection nozzle device for high pressure cleaning apparatus
WO2003017748A1 (en) * 2001-08-13 2003-03-06 Hardi International A/S A nozzle
AU2002356080B2 (en) * 2001-08-13 2007-08-09 Sa Exel Industries A nozzle

Also Published As

Publication number Publication date
YU20580A (en) 1983-12-31
FR2448389A1 (en) 1980-09-05
FR2448389B1 (en) 1981-04-30

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