WO2004099655A1 - Modular valve head with adjustable angular amplitude - Google Patents

Modular valve head with adjustable angular amplitude Download PDF

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Publication number
WO2004099655A1
WO2004099655A1 PCT/FR2004/001078 FR2004001078W WO2004099655A1 WO 2004099655 A1 WO2004099655 A1 WO 2004099655A1 FR 2004001078 W FR2004001078 W FR 2004001078W WO 2004099655 A1 WO2004099655 A1 WO 2004099655A1
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WO
WIPO (PCT)
Prior art keywords
head according
tap head
angular
operating rod
parts
Prior art date
Application number
PCT/FR2004/001078
Other languages
French (fr)
Inventor
Valérie CORNETET
Yves Delaisement
Francis Lecher
Original Assignee
Saint-Gobain Ceramiques Avancees Desmarquest
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 Saint-Gobain Ceramiques Avancees Desmarquest filed Critical Saint-Gobain Ceramiques Avancees Desmarquest
Publication of WO2004099655A1 publication Critical patent/WO2004099655A1/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
    • F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
    • F16K11/06—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements
    • F16K11/072—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with pivoted closure members
    • F16K11/074—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with pivoted closure members with flat sealing faces
    • F16K11/0746—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with pivoted closure members with flat sealing faces with two or more closure plates comprising a single lever control
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
    • F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
    • F16K3/04—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with pivoted closure members
    • F16K3/06—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with pivoted closure members in the form of closure plates arranged between supply and discharge passages
    • F16K3/08—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with pivoted closure members in the form of closure plates arranged between supply and discharge passages with circular plates rotatable around their centres

Definitions

  • the invention relates to tap heads (or mechanisms) intended to regulate the flow rate of a fluid by rotation of a movable disc relative to a fixed disc, so as to vary the passage section defined by the openings or zones. hollowed out that these discs have opposite in the configuration of the moment.
  • Such tap heads have a hollow body, in practice of generally cylindrical shape, in which face two discs, in practice made of ceramic, disposed between at least one inlet passage and one outlet passage (in one or more openings) .
  • One of the discs is fixed while the other is movable in rotation around an axis transverse to the facing surfaces of the two discs.
  • Each disc has one or more openings and the disc is movable relative to the fixed disc between an extreme closure configuration, in which each opening of a disc is closed by a solid portion of the other, so that no flow of liquid is only possible between the inlet and outlet passages, and an extreme opening configuration, in which the openings of the two discs are opposite so as to allow a flow of liquid to pass between these inlet and exit.
  • the drive of the movable disc relative to the fixed disc is carried out, directly or indirectly, by means of an operating rod comprising an external portion adapted to be controlled by a user, and an internal portion transmitting the movement of the external portion to the moving disc.
  • tap heads called “quarter turn” that is to say that the maximum angular movement of the movable disc is 90 ° there, tap heads said “ half turn ”whose maximum angular movement is 180 ° and tap heads called“ three-quarter turn ”whose maximum angular movement is 270 °: to each of these angular amplitudes correspond geometries of discs (fixed or mobile). Furthermore, there are, for each of the angular amplitudes, operating rods having several lengths and several shapes (notching, in particular) possible.
  • a tap head is therefore in practice constructed from parts chosen from knowledge of the final destination of this product, which implies having a large number of possible geometries for the discs and the operating rods, or even for other elements of the valve head with which these discs and this rod cooperate.
  • the subject of the invention is a tap head whose constitution allows greater standardization of the constituent parts, despite the diversity of the angular amplitudes, or the diversity of the geometries of the operating rods.
  • the invention proposes for this purpose a tap head comprising: a body having a longitudinal axis and provided with an inlet passage and an outlet passage,
  • tap heads having in service different angular amplitudes can have discs of the same geometries; for example, the same discs can be provided to be mounted in valve bodies of the "half-turn” type and in valve bodies of the "three-quarter turn” type, the final amplitude being defined by the relative positioning spans and shoulders, itself determined by the geometry of said insert. And if one chooses to have this insert outside the body, it is even possible to construct the internal stack of the valve head without yet knowing what angular amplitude this particular valve head will have in its end use.
  • the valve head is thus modular, with adjustable angular amplitude.
  • this insert is arranged outside the body, which has the advantage that it can be assembled after assembly of the elements to be stacked inside the body, o this insert is rotatably coupled to the rod maneuvering (for example fixed to it reversibly or not), and can therefore be compact and of simple geometry (it is often easier to bring one piece around another, than inside of it),
  • this insert also carries another of said radial surfaces; it is in fact simpler and less bulky to have either the two shoulders or the two spans, on the same part, • this added part is a flange surrounding the operating rod, which corresponds to a practical geometry for a part reported,
  • this insert has a radial projection bordered by the shoulders and whose angular amplitude determines the difference between the maximum angular movement of the movable disc and the angular movement of the maneuvering rod, which is a practical way of forming shoulders with a given angular deviation,
  • the difference between the maximum angular movement of the movable disc and the angular movement of the maneuvering rod is between 30 ° and 180 °
  • the difference between the maximum angular movement of the movable disc and the angular maneuvering of the maneuvering rod is approximately 90 °, which corresponds to the currently conventional difference between the various types of valves ("quarter -tour “,” half-turn “and” three-quarter-turns "); thus, in a first example, the maximum angular movement of the movable disc is approximately 180 ° and the angular operating movement of the operating rod is approximately 90 °; in another example, the angular displacement maximum of the movable disc is approximately 270 ° and the angular operating movement of the operating rod is approximately 180 °;
  • the invention proposes a tap head comprising:
  • an operating rod coaxial with the body comprising an external part arranged outside the body and an internal part coupling in rotation this external part and the movable disc,
  • tap heads operating with different dimensions with regard to their operating rods may have disks of the same geometry. And if one chooses to have the interface outside the body, it is even possible to build the internal stack of the valve head without yet knowing what axial size this particular valve head will have in its end use.
  • one of said parts comprises a stud, advantageously formed in the external part, engaged in a housing formed in the other of said parts, which optimizes the mechanical connection between the two parts,
  • the insert is advantageously mounted in the zone in which the two parts of the operating rod are attached to each other.
  • the attachment of the insert as well as that of the two rod parts can easily be done in a reversible manner (the disassembly of the rod allowing the disassembly of the insert).
  • FIG. 1 is a side view of a tap head according to the invention
  • FIG. 2 is a view in longitudinal section along the line A- A of FIG. 1,
  • FIG. 3 is an exploded perspective view of a second tap head according to the invention
  • Figure 4A is a top view of the angular stop of Figure 3, in a closed configuration of the valve head of this Figure 3, or Figure 4B in a top view, in an extreme configuration of opening ,
  • FIG. 5A is a top view of another angular stop, adapted to be installed in place of the stop of FIGS. 4A and 4B, in the closed configuration of the tap head of this FIG. 3,
  • FIG. 5B is a top view thereof, in a second extreme configuration of opening
  • FIG. 6 is a view of the two discs of FIG. 3, in the closed configuration
  • FIG. 7 is a top view, in the first extreme opening configuration
  • FIG. 8 is a top view, in the second extreme opening configuration
  • FIG. 9 is a side view of the operating rod of the valve head of FIG. 3 (threaded solution),
  • Figure 10 is an exploded view
  • Figure 1 1 is a top view of the movable disc according to an alternative embodiment corresponding to a maximum clearance of 270 ° and,
  • Figure 12 is a bottom view of the corresponding fixed disc.
  • Figures 1 and 2 show by way of example a tap head designated 1 as a whole. It comprises a hollow body 2 of generally cylindrical shape, comprising a liquid inlet passage, in practice located at its lower end and here materialized by a base gasket 3, and a liquid outlet passage 4, in practice provided in its wall and here formed by two diametrically opposite openings. Conventionally, this body has on its outer wall a seal 5 intended to allow a tight mounting of this body in a housing not shown.
  • the base gasket 3 In this body are mounted, in addition to the base gasket 3, a fixed disc 6, a movable disc 7, and an operating rod 8.
  • the internal wall of the body hollow has a transverse shoulder 2A against which comes a shoulder 8A of the operating rod, by means of a friction ring 9.
  • the base gasket 3 is fitted in the lower part of the hollow body 2 so that 'it helps to apply the fixed disc against the movable disc, the movable disc against the lower edge of the operating rod, and the shoulder of this rod against that of the hollow body.
  • the seal here maintains the stack of superimposed discs in place. It internally includes a ring 3A.
  • the fixed disc 6 has an opening 10, here in a part having the shape of a half-disc bordered by a diameter, for the passage of the liquid entering through the liquid inlet passage of the hollow body.
  • This opening is, in the example considered bordered externally by a peripheral portion 6A of the disc so that this disc has a continuous periphery in substantially a circle: this contributes to good positioning without leakage of this fixed disc in the body.
  • the movable disc 7 also has an opening, denoted 11, here also in part; it also has the shape of a half-disc bordered by a diameter. By cons, this opening here has no peripheral border; in fact, this opening, which is not axially opening (ie that it does not cross the movable disc over its entire thickness) is radially opposite the liquid outlet passage.
  • the operating rod 8 is mounted movable in rotation about the longitudinal axis Z-Z; it is coaxial with the hollow body. It comprises an external control portion denoted 8B and an internal portion 8C situated inside the body and comprising the abovementioned shoulder 8A.
  • This external part 8B comprises a control area, in practice grooved, intended to be actuated by a user, and whose geometry (in particular its notching) depends on the control interface with which this rod is intended to cooperate.
  • the internal part 8C has a geometry suitable for transmitting to the mobile disk the rotational movement imparted to the external control portion.
  • This internal part here comprises on its lower edge a diametral projection 8D penetrating into an upper diametral groove 7A of the movable disc 7.
  • the operating rod carries two radial shoulders, while the body carries, substantially at the same level along the longitudinal axis, two radial bearings. These shoulders and these spans delimit the angular movement of the operating rod with respect to the body.
  • the radial bearing surfaces are delimited in the upper external edge of the hollow body while the shoulders are formed on the external portion 8B of the operating rod, and are therefore outside the hollow body.
  • this cooperation can take place inside the body.
  • At least one of the shoulders, or at least one of the bearing surfaces is formed on an attached part (fixed to the body or to the rod, depending on the case considered).
  • the two shoulders, or the two spans are produced on the insert.
  • both the shoulders and the spans can be made on attachments.
  • the radial bearing surfaces are here provided in an upper part of an upper portion of the nut-forming body, usual for allowing the fixing of the valve head in its housing, in configuration of use. These spans can only be identified in FIG. 1, where detachments 12 are detected in this portion forming a nut. And the shoulders are formed on a flange 13 of the operating rod; they are not visible because they border a radial projection 13A (recognizable by the fact that it has, on the left of the axis in FIG. 2, a larger radial dimension than on the right of this axis).
  • This collar 13 is here a separate part of the rod, so that the two shoulders are formed on an insert. In a variant not shown, these are the two bearing surfaces which are provided on the attached part linked to the body.
  • a circlip 14 is provided on the external part
  • valve head 3 shows an exploded perspective view of an alternative embodiment of the valve head of Figures 1 and 2.
  • the common elements between these two variants are designated by the same numbers as in these Figures 1 and 2, but assigned a "prime" index.
  • This valve head thus comprises a hollow body 2 ′ containing a fixed disc 6 ′ (we see here that it has a radial projection which makes it possible to prevent any rotation inside the body), a movable disc 7 ′ and an internal part 8C of an operating rod 8 ', and provided in its lower part with a ring 3'.
  • the operating rod is formed of two distinct parts, referred to as the to each other during assembly.
  • the operating rod 8 'of the tap head of FIG. 3 is formed, like that of FIGS. 1 and 2, of an external part 8B' and an internal part 8C, but these parts are initially independent and therefore present, once assembled, an identifiable interface.
  • the flange 13 ' is here again an insert, removable or not, and that it is located in the zone where these external and internal parts are connected, which facilitates the assembly of this rod and the shoulders / spans delimiting the travel in service.
  • the two parts 8B 'and 8C of the rod 8' of Figure 3 are connectable to each other on either side of the upper edge of the hollow body 2 ', so that it it is possible to assemble the stack of disks 6 'and 7' and of part 8C inside the hollow body 2 'with the joint 3' before making the two parts of the operating rod 8 'integral.
  • the connection between the two parts of this rod may be located inside the hollow body, for example at the level of the shoulder 8A ′, in which case, the connection of the two parts must be made before to fix the stack of discs inside the hollow body.
  • the movable disc can be broken down between an axially lower part comprising the opening 11 and an axially upper, full part, serving as an intermediary between the rod and this lower part.
  • FIGS. 4A and 5B represent two possible geometries of a flange adapted to surround the operating rod 8 or 8 ′. It can be noted that they have a non-circular opening adapted to cooperate with the rod, in an area where its section is also not circular, so that no untimely rotation is possible between these flanges and this rod.
  • FIG. 4A represents a flange 23, for example identical to the flange 13 or 13 ′ of the abovementioned figures. It has a projection 23A of small amplitude bordered by two radial shoulders 23B and 23C. As for FIG. 5A, it represents another collar 33 having a projection 33A of greater angular amplitude (here a little more than 90 °) bordered by two shoulders 33B and 33C.
  • FIGS. 5A and 5B these flanges are shown in combination with the two radial bearings of the body 2 or 2 ′, formed in the examples considered in the upper edges of these bodies which form the nut (see above). These ranges are here designated by the references 22 and 22 '. It will be noted that, in the configurations of FIGS. 4A and
  • the flanges 23 and 33 are shown in an angular position where their shoulders 23B and 33B are in abutment against the bearing 22.
  • these flanges are shown in an angular position where their shoulders 23C and 33C are in abutment against the range 22 '.
  • FIGS. 6 to 8 represent the relative configurations of the two discs 6 and 7 (or 6 ′ and 7 ′) corresponding to the extreme angular positions of the flanges 23 and 33.
  • the discs are in a configuration where the openings of the two discs are disjoint (the fixed disc opening is found in this figure in the lower half of the overall size of the discs, while the disc opening mobile, completely hidden by the upper half of the fixed fixed disc which is full, is in the upper half of this overall size: there can therefore be no passage of liquid through the stack of discs: that the flange used is that of FIG. 4A or that of FIG. 5A, there is therefore no passage of liquid when the flange considered is in the extreme closed configuration of FIG. 4A or 5A.
  • the openings of the two discs coincide, that is to say that both are located in the lower half of the overall size of the stack of discs.
  • This relative configuration of the discs corresponds to a rotation of 180 ° of the movable disc, which corresponds to the passage of the flange 23 of the configuration of FIG. 4A to that of FIG. 4B, for which the shoulder 23C is in abutment against the reach 22 '.
  • This configuration of the two discs is an extreme opening configuration (that is to say for which the passage section for the liquid is maximum), which also corresponds to one end of the angular movement of the projection 23A between the surfaces 22 and 22 '. If ⁇ is the maximum angular movement of the movable disc between its minimum or maximum passage configurations, the amplitude of the movement in service is, with the flange 23, equal to this value.
  • FIG. 8 represents a configuration where the openings of the two discs only coincide halfway, at the bottom right (the movable disc has only rotated 90 ° relative to the configuration of FIG. 6) while the bearing surface 33C of the collar is already in abutment against the shoulder 22 '.
  • the service travel ⁇ of the operating rod taking into account the choice of flange 33, is much less than the maximum clearance of the movable disc (which is determined by the geometry of the openings of the fixed and movable discs).
  • the discs behave as in a tap head of the "half-turn" type.
  • the angular movement authorized by the flange 33 is 90 °, the discs behave as in a tap head of the "quarter-turn” type.
  • the structural change between the two configurations is the replacement of one flange with another, all the other elements of the valve head remaining the same.
  • the tap head having the smallest angular clearance having the particularity that it comprises a pair of discs having a given clearance between a closed configuration and a maximum passage configuration, and a pair of bearings on the rod and a pair of shoulders on the body which delimit for this rod has an authorized clearance substantially lower than the above-mentioned angular clearance.
  • FIGS. 9 and 10 show by way of example the two constituent parts of the operating rod 8 ′ of FIG. 3.
  • the external part 8B 'here comprises a stud 25 directed downwards and whose cylindrical surface is threaded, while that the internal part 8C comprises a cylindrical housing 26, the internal wall of which comprises a corresponding thread.
  • the assembly between the two parts can therefore be done by simply screwing the two parts relative to each other.
  • the assembly of the two parts is reversible.
  • this reversible assembly is for example of the bayonet type.
  • the collar 13 'of FIG. 3 is advantageously arranged at the interface between these two parts and, if the assembly of the two parts is reversible, it is easy to make reversible the mounting of the flange.
  • the assembly is produced in an irreversible manner, for example by gluing or by welding, shrinking or crimping, between the stud and its housing (in fact this stud and this housing can then have any shape, for example polygonal or oval, possibly conical, to avoid any relative rotation).
  • this stud and this housing can then have any shape, for example polygonal or oval, possibly conical, to avoid any relative rotation.
  • the respective locations of the stud and of the housing in the two parts of the rod can be reversed, or off-center.
  • the discs have openings defining a relative angular movement of 180 ° between the extreme closed configuration and the extreme maximum passage configuration.
  • discs whose openings define a relative angular displacement having another value, smaller or larger.
  • the discs of the tap heads of Figures 1 and 2, or 3 can be replaced by discs according to Figures 11 and 12 (for the fixed disc, and the movable disc, respectively), in which case the travel relative angular is 270 ° (see in this connection document EP-0 296 945).
  • the surfaces integral with the body have a greater angular spacing (in practice 270 °) while, as a function of the angular amplitude of the projection of the flange, it is possible to define, by difference between this value of 270 ° and this amplitude of the projection, a lower angular clearance for the valve head taken as a whole.
  • the flange 23 defines a head tap "three-quarter-turn" while the collar 33 defines another tap head type "half-turn".
  • the movable disc can move 180 ° or 270 °
  • the shapes of the openings mentioned above have been only as examples, and can be replaced by any other suitable shape, in one or more parties.
  • connection between the parts of the stem, and / or if the change of the angular difference between the spans / shoulders, can be done outside the body, it is possible to realize all the tap heads in accordance with requirements from a small number of modules (body containing its discs and the internal part of the operating rod) which are completed during assembly in service, by adding the appropriate collar, or by fixing the part external rod having the correct geometry (length, notching, ).

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Multiple-Way Valves (AREA)
  • Sliding Valves (AREA)
  • Lift Valve (AREA)

Abstract

The invention relates to a valve head with adjustable angular amplitude. The inventive valve head consists of: a body (2) having a longitudinal axis Z-Z and comprising an inlet passage (3) and an outlet passage (4); two stacked disks, namely one fixed disk (6) and one mobile disk (7), comprising openings (10 and 11) which together define a valve orifice between the inlet passage and the outlet passage, said mobile disk having a maximum angular displacement between a first end position in which the valve orifice is zero and a second end position in which said orifice is at a maximum; a stem (8) which is used to rotate the mobile disk; and radial bearing surfaces which are connected to the body and radial flanges which are connected to the stem, defining an angular displacement between a rest configuration and an end in-service configuration. The invention is characterised in that at least one of the radial surfaces formed by the aforementioned flanges and bearing surfaces is arranged on an insert (13) which is shaped such that the angular displacement is significantly less than the maximum angular displacement of the mobile disk.

Description

Tête de robinet modulaire à amplitude angulaire ajustable Modular tap head with adjustable angular amplitude
L'invention concerne les têtes (ou mécanismes) de robinet destinées à réguler le débit d'un fluide par rotation d'un disque mobile par rapport à un disque fixe, en sorte de faire varier la section de passage définie par les ouvertures ou zones évidées que ces disques ont en regard dans la configuration du moment.The invention relates to tap heads (or mechanisms) intended to regulate the flow rate of a fluid by rotation of a movable disc relative to a fixed disc, so as to vary the passage section defined by the openings or zones. hollowed out that these discs have opposite in the configuration of the moment.
De telles têtes de robinet comportent un corps creux, en pratique de forme globalement cylindrique, dans lequel sont affrontés deux disques, en pratique en céramique, disposés entre au moins un passage d'entrée et un passage de sortie (en une ou plusieurs ouvertures). L'un des disques est fixe tandis que l'autre est mobile en rotation autour d'un axe transversal aux surfaces en regard des deux disques. Chaque disque comporte une ou plusieurs ouvertures et le disque est mobile par rapport au disque fixe entre une configuration extrême de fermeture, dans laquelle chaque ouverture d'un disque est obturée par une portion pleine de l'autre, de sorte qu'aucun débit de liquide n'est possible entre les passages d'entrée et de sortie, et une configuration extrême d'ouverture, dans laquelle les ouvertures des deux disques sont en regard en sorte de laisser passer un débit de liquide entre ces passages d'entrée et de sortie.Such tap heads have a hollow body, in practice of generally cylindrical shape, in which face two discs, in practice made of ceramic, disposed between at least one inlet passage and one outlet passage (in one or more openings) . One of the discs is fixed while the other is movable in rotation around an axis transverse to the facing surfaces of the two discs. Each disc has one or more openings and the disc is movable relative to the fixed disc between an extreme closure configuration, in which each opening of a disc is closed by a solid portion of the other, so that no flow of liquid is only possible between the inlet and outlet passages, and an extreme opening configuration, in which the openings of the two discs are opposite so as to allow a flow of liquid to pass between these inlet and exit.
L'entraînement du disque mobile par rapport au disque fixe est réalisé, directement ou indirectement, au moyen d'une tige de manœuvre comportant une portion externe adaptée à être commandée par un utilisateur, et une portion interne transmetta nt le mouvement de la portion externe au disque mobile. Compte tenu de la diversité des types de têtes de robinet, il existe actuellement une grande diversité de disques fixes, de disques mobiles et de tiges de manœuvre, correspondant à diverses amplitudes de débattement angulaire et divers encombrements axiaux des têtes de robinet. C'est ainsi, notamment, qu'on peut par exemple distinguer des têtes de robinet dites « quart de tour », c'est à dire que le débattement angulaire maximum du disque mobile y est de 90°, des têtes de robinet dites « demi- tour » dont le débattement angulaire maximum est de 180° et des têtes de robinet dites « trois-quarts de tour » dont le débattement angulaire maximum est de 270° : à chacune de ces amplitudes angulaires correspondent des géométries de disques (fixes ou mobiles). Par ailleurs, il existe, pour chacune des amplitudes angulaires, des tiges de manœuvre ayant plusieurs longueurs et plusieurs formes (crantage, notamment) possibles.The drive of the movable disc relative to the fixed disc is carried out, directly or indirectly, by means of an operating rod comprising an external portion adapted to be controlled by a user, and an internal portion transmitting the movement of the external portion to the moving disc. Given the diversity of types of valve heads, there is currently a wide variety of fixed discs, movable discs and operating rods, corresponding to various amplitudes of angular movement and various axial dimensions of the valve heads. It is thus, in particular, that one can for example distinguish tap heads called "quarter turn", that is to say that the maximum angular movement of the movable disc is 90 ° there, tap heads said " half turn ”whose maximum angular movement is 180 ° and tap heads called“ three-quarter turn ”whose maximum angular movement is 270 °: to each of these angular amplitudes correspond geometries of discs (fixed or mobile). Furthermore, there are, for each of the angular amplitudes, operating rods having several lengths and several shapes (notching, in particular) possible.
Une tête de robinet est donc en pratique construite à partir de pièces choisies à partir de la connaissance de la destination finale de ce produit, ce qui implique de disposer d'un grand nombre de géométries possibles pour les disques et les tiges de manœuvre, voire pour d'autres éléments de la tête de robinet avec lesquels coopèrent ces disques et cette tige.A tap head is therefore in practice constructed from parts chosen from knowledge of the final destination of this product, which implies having a large number of possible geometries for the discs and the operating rods, or even for other elements of the valve head with which these discs and this rod cooperate.
L'invention a pour objet une tête de robinet dont la constitution permet une plus grande standardisation des pièces constitutives, malgré la diversité des amplitudes angulaires, ou la diversité des géométries des tiges de manœuvre.The subject of the invention is a tap head whose constitution allows greater standardization of the constituent parts, despite the diversity of the angular amplitudes, or the diversity of the geometries of the operating rods.
Selon un premier aspect, l'invention propose à cet effet une tête de robinet comportant : - un corps ayant un axe longitudinal et muni d'un passage d'entrée et d'un passage de sortie,According to a first aspect, the invention proposes for this purpose a tap head comprising: a body having a longitudinal axis and provided with an inlet passage and an outlet passage,
- deux disques superposés disposés transversalement dans ce corps entre ces passages d'entrée et de sortie, dont un disque fixe dans lequel est ménagée une première ouverture et un disque mobile adapté à tourner autour de cet axe et dans lequel est ménagée une seconde ouverture, ces ouvertures définissant conjointement, en fonction de la position angulaire instantanée du disque mobile par rapport au disque fixe, une section de passage entre les passages d'entrée et de sortie, ce disque mobile ayant un débattement angulaire maximal entre une première position extrême dans laquelle la section de passage est nulle et une seconde position extrême dans laquelle la section de passage est maximale, - une tige de manœuvre coaxiale au corps comportant une partie externe disposée en dehors du corps et une partie interne accouplant en rotation cette partie externe et le disque mobile,- two superimposed discs arranged transversely in this body between these inlet and outlet passages, including a fixed disc in which is formed a first opening and a movable disc adapted to rotate around this axis and in which is formed a second opening, these openings jointly defining, as a function of the instantaneous angular position of the movable disc relative to the fixed disc, a section of passage between the inlet and outlet passages, this movable disc having a maximum angular clearance between a first extreme position in which the passage section is zero and a second extreme position in which the passage section is maximum, - a rod maneuver coaxial with the body comprising an external part arranged outside the body and an internal part coupling in rotation this external part and the movable disc,
- des portées radiales liées au corps et des épaulements radiaux liés à la tige de manœuvre adaptés à coopérer en sorte de délimiter un débattement angulaire de manœuvre entre une configuration de repos dans laquelle le disque mobile est dans sa première position extrême, et une configuration extrême en service, caractérisée en ce que l'une au moins des surfaces radiales constituées par les épaulements et les portées est ménagée sur une pièce rapportée dont la géométrie est telle que le débattement angulaire de manœuvre est significativement inférieur au débattement angulaire maximal du disque mobile.- radial bearing surfaces linked to the body and radial shoulders linked to the operating rod adapted to cooperate so as to delimit an angular maneuvering movement between a rest configuration in which the movable disc is in its first extreme position, and an extreme configuration in service, characterized in that at least one of the radial surfaces formed by the shoulders and the bearing surfaces is formed on an insert whose geometry is such that the angular movement of the maneuver is significantly less than the maximum angular movement of the movable disc.
Cette différence entre les débattements considérés est ici considérée comme étant significative dès qu'elle est au moins de l'ordre de 5°, voire 10°. On appréciera qu'ainsi, selon cet aspect de l'invention, des têtes de robinet ayant en service des amplitudes angulaires différentes peuvent avoir des disques de mêmes géométries ; par exemple, de mêmes disques peuvent être prévus pour être montés dans des corps de robinet de type « demi-tour » et dans des corps de robinet de type « trois-quarts de tour », l'amplitude finale étant définie par le positionnement relatif des portées et des épaulements, lui- même déterminé par la géométrie de ladite pièce rapportée. Et si l'on choisit de disposer cette pièce rapportée à l'extérieur du corps, il est même possible de construire l'empilement interne de la tête de robinet sans savoir encore quelle amplitude angulaire aura cette tête de robinet particulière dans son utilisation finale. La tête de robinet est ainsi modulaire, à amplitude angulaire ajustable.This difference between the deflections considered is here considered to be significant as soon as it is at least of the order of 5 °, even 10 °. It will be appreciated that thus, according to this aspect of the invention, tap heads having in service different angular amplitudes can have discs of the same geometries; for example, the same discs can be provided to be mounted in valve bodies of the "half-turn" type and in valve bodies of the "three-quarter turn" type, the final amplitude being defined by the relative positioning spans and shoulders, itself determined by the geometry of said insert. And if one chooses to have this insert outside the body, it is even possible to construct the internal stack of the valve head without yet knowing what angular amplitude this particular valve head will have in its end use. The valve head is thus modular, with adjustable angular amplitude.
Selon des dispositions préférées de l'invention, éventuellement combinées : • cette pièce rapportée est disposée à l'extérieur du corps, ce qui a l'avantage que son montage peut être réalisé après assemblage des éléments devant être empilés à l'intérieur du corps, o cette pièce rapportée est accouplée en rotation à la tige de manœuvre (par exemple fixée à celle-ci de façon réversible ou non), et peut donc être de faible encombrement et de géométrie simple (il est souvent plus simple de rapporter une pièce autour d'une autre, qu'à l'intérieur de celle-ci),According to preferred arrangements of the invention, possibly combined: • this insert is arranged outside the body, which has the advantage that it can be assembled after assembly of the elements to be stacked inside the body, o this insert is rotatably coupled to the rod maneuvering (for example fixed to it reversibly or not), and can therefore be compact and of simple geometry (it is often easier to bring one piece around another, than inside of it),
• les portées sont ménagées sur une tranche transversale du corps de la tête de robinet, traversée par la tige de manœuvre, ce qui a l'avantage de n'avoir qu'à aménager cette tranche (sur sa face interne, ou de préférence sur sa face extérieure, sans avoir à mettre en place des portées en porte-à-faux),• the surfaces are provided on a transverse section of the body of the valve head, crossed by the operating rod, which has the advantage of having only to arrange this section (on its internal face, or preferably on its outer face, without having to install cantilever spans),
• cette pièce rapportée porte en outre une autre desdites surfaces radiales ; il est en effet plus simple et moins encombrant de disposer, soit les deux épaulements, soit les deux portées, sur une même pièce, • cette pièce rapportée est une collerette entourant la tige de manœuvre, ce qui correspond à une géométrie pratique pour une pièce rapportée,• this insert also carries another of said radial surfaces; it is in fact simpler and less bulky to have either the two shoulders or the two spans, on the same part, • this added part is a flange surrounding the operating rod, which corresponds to a practical geometry for a part reported,
• cette pièce rapportée comporte une saillie radiale bordée par les épaulements et dont l'amplitude angulaire détermine la différence entre le débattement angulaire maximal du disque mobile et le débattement angulaire de manœuvre de la tige de manœuvre, ce qui constitue une manière pratique de former des épaulements avec un écart angulaire donné,• this insert has a radial projection bordered by the shoulders and whose angular amplitude determines the difference between the maximum angular movement of the movable disc and the angular movement of the maneuvering rod, which is a practical way of forming shoulders with a given angular deviation,
• l'écart entre le débattement angulaire maximal du disque mobile et le débattement angulaire de manœuvre de la tige de manœuvre est compris entre 30° et 180°,The difference between the maximum angular movement of the movable disc and the angular movement of the maneuvering rod is between 30 ° and 180 °,
• l'écart entre le débattement angulaire maximal du disque mobile et le débattement angulaire de manœuvre de la tige de manœuvre est d'environ 90°, ce qui correspond à l'écart actuellement classique entre les divers types de robinets ("quart-de-tour", "demi-tour" et "trois-quarts-de-tour") ; c'est ainsi que, dans un premier exemple, le débattement angulaire maximal du disque mobile est d'environ 180° et le débattement angulaire de manœuvre de la tige de manœuvre est d'environ 90° ; dans un autre exemple, le débattement angulaire maximal du disque mobile est d'environ 270° et le débattement angulaire de manœuvre de la tige de manœuvre est d'environ 180° ;• the difference between the maximum angular movement of the movable disc and the angular maneuvering of the maneuvering rod is approximately 90 °, which corresponds to the currently conventional difference between the various types of valves ("quarter -tour "," half-turn "and" three-quarter-turns "); thus, in a first example, the maximum angular movement of the movable disc is approximately 180 ° and the angular operating movement of the operating rod is approximately 90 °; in another example, the angular displacement maximum of the movable disc is approximately 270 ° and the angular operating movement of the operating rod is approximately 180 °;
» mais dans un autre exemple, avec un écart de débattement de l'ordre de 180°, le débattement maximum est de 270° tandis que le débattement angulaire de la tige de manœuvre est d'environ 90°.»But in another example, with a travel deviation of around 180 °, the maximum travel is 270 ° while the angular travel of the operating rod is approximately 90 °.
• la pièce rapportée est fixée de manière réversible.• the insert is fixed in a reversible manner.
Selon un autre aspect, indépendant du précédent, l'invention propose une tête de robinet comportant:According to another aspect, independent of the previous one, the invention proposes a tap head comprising:
- un corps ayant un axe longitudinal et muni d'un passage d'entrée et d'un passage de sortie,- a body having a longitudinal axis and provided with an inlet passage and an outlet passage,
- deux disques superposés disposés transversalement dans ce corps entre ces passages d'entrée et de sortie, dont un disque fixe dans lequel est ménagée une première ouverture et un disque mobile adapté à tourner autour de cet axe et dans lequel est ménagée une seconde ouverture, ces ouvertures définissant conjointement, en fonction de la position angulaire instantanée du disque mobile par rapport au disque fixe, une section de passage entre les passages d'entrée et de sortie, ce disque mobile ayant un débattement angulaire maximal entre une première position extrême dans laquelle la section de passage est nulle et une seconde position extrême dans laquelle la section de passage est maximale,- two superimposed discs arranged transversely in this body between these inlet and outlet passages, including a fixed disc in which is formed a first opening and a movable disc adapted to rotate around this axis and in which is formed a second opening, these openings jointly defining, as a function of the instantaneous angular position of the movable disc relative to the fixed disc, a passage section between the inlet and outlet passages, this movable disc having a maximum angular clearance between a first extreme position in which the passage section is zero and a second extreme position in which the passage section is maximum,
- une tige de manœuvre coaxiale au corps comportant une partie externe disposée en dehors du corps et une partie interne accouplant en rotation cette partie externe et le disque mobile,an operating rod coaxial with the body comprising an external part arranged outside the body and an internal part coupling in rotation this external part and the movable disc,
- des portées radiales liées au corps et des épaulements radiaux liés à la tige de manœuvre adaptés à coopérer en sorte de délimiter un débattement angulaire de manœuvre entre une configuration de repos dans laquelle le disque mobile est dans sa première position extrême, et une configuration extrême en service, caractérisée en ce que les parties externe et interne de la tige de manœuvre sont constituées par des pièces rapportées l'une à l'autre.- radial bearing surfaces linked to the body and radial shoulders linked to the operating rod adapted to cooperate so as to delimit an angular maneuvering movement between a rest configuration in which the movable disc is in its first extreme position, and an extreme configuration in service, characterized in that the external and internal parts of the operating rod are formed by parts attached to one another.
On appréciera qu'ainsi, selon cet aspect de l'invention, des têtes de robinet fonctionnant avec des encombrements différents en ce qui concerne leurs tiges de manœuvre peuvent avoir des disques de mêmes géométries. Et si l'on choisit de disposer l'interface à l'extérieur du corps, il est même possible de construire l'empilement interne de la tête de robinet sans savoir encore quelle encombrement axial aura cette tête de robinet particulière dans son utilisation finale.It will be appreciated that thus, according to this aspect of the invention, tap heads operating with different dimensions with regard to their operating rods may have disks of the same geometry. And if one chooses to have the interface outside the body, it is even possible to build the internal stack of the valve head without yet knowing what axial size this particular valve head will have in its end use.
Selon des dispositions préférées de l'invention selon ce second aspect, éventuellement combinées :According to preferred arrangements of the invention according to this second aspect, possibly combined:
© l'une desdites pièces comporte un téton, avantageusement ménagé dans la partie externe, engagé dans un logement ménagé dans l'autre desdites pièces, ce qui optimise la liaison mécanique entre les deux parties,© one of said parts comprises a stud, advantageously formed in the external part, engaged in a housing formed in the other of said parts, which optimizes the mechanical connection between the two parts,
• lesdites pièces sont rapportées de manière réversible, par exemple par vissage,Said parts are brought back reversibly, for example by screwing,
• lesdites pièces sont rapportées de manière définitive, par exemple par soudage ou par collage (après un éventuel vissage par exemple). Bien entendu, les deux aspects précités sont avantageusement combinés, conduisant à une grande standardisation des composants de têtes de robinet, seules variant les géométries des collerettes et des parties externes des tiges. C'est ainsi que, de préférence, la pièce rapportée est avantageusement montée dans la zone en laquelle les deux parties de la tige de manœuvre sont rapportées l'une à l'autre. Dans ce cas, la fixation de la pièce rapportée ainsi que celle des deux parties de tige peut aisément se faire de façon réversible (le démontage de la tige permettant le démontage de la pièce rapportée).• said parts are permanently added, for example by welding or by bonding (after a possible screwing for example). Of course, the two aforementioned aspects are advantageously combined, leading to great standardization of the valve head components, only varying the geometries of the flanges and of the external parts of the rods. Thus, preferably, the insert is advantageously mounted in the zone in which the two parts of the operating rod are attached to each other. In this case, the attachment of the insert as well as that of the two rod parts can easily be done in a reversible manner (the disassembly of the rod allowing the disassembly of the insert).
Des objets, caractéristiques et avantages de l'invention ressortent de la description qui suit, donnée à titre d'exemple illustratif non limitatif, en référence aux dessins annexés sur lesquels:Objects, characteristics and advantages of the invention appear from the following description, given by way of nonlimiting illustrative example, with reference to the appended drawings in which:
• la figure 1 est une vue latérale d'une tête de robinet selon l'invention,FIG. 1 is a side view of a tap head according to the invention,
• la figure 2 en est une vue en coupe longitudinale selon la ligne A- A de la figure 1 ,FIG. 2 is a view in longitudinal section along the line A- A of FIG. 1,
• la figure 3 est une vue éclatée en perspective d'une seconde tête de robinet selon l'invention, • la figure 4A est une vue de dessus de la butée angulaire de la figure 3, dans une configuration de fermeture de la tête de robinet de cette figure 3, o la figure 4B en une vue de dessus, dans une configuration extrême d'ouverture,FIG. 3 is an exploded perspective view of a second tap head according to the invention, • Figure 4A is a top view of the angular stop of Figure 3, in a closed configuration of the valve head of this Figure 3, or Figure 4B in a top view, in an extreme configuration of opening ,
• la figure 5A est une vue de dessus d'une autre butée angulaire, adaptée à être implantée à la place de la butée des figures 4A et 4B, dans la configuration de fermeture de la tête de robinet de cette figure 3,FIG. 5A is a top view of another angular stop, adapted to be installed in place of the stop of FIGS. 4A and 4B, in the closed configuration of the tap head of this FIG. 3,
• la figure 5B en est une vue de dessus, dans une seconde configuration extrême d'ouverture,FIG. 5B is a top view thereof, in a second extreme configuration of opening,
• la figure 6 est une vue des deux disques de la figure 3, en configuration de fermeture,FIG. 6 is a view of the two discs of FIG. 3, in the closed configuration,
• la figure 7 en est une vue de dessus, dans la première configuration extrême d'ouverture, • la figure 8 en est une vue de dessus, dans la seconde configuration extrême d'ouverture,FIG. 7 is a top view, in the first extreme opening configuration, • FIG. 8 is a top view, in the second extreme opening configuration,
• la figure 9 est une vue latérale de la tige de manœuvre de la tête de robinet de la figure 3 (solution filetée),FIG. 9 is a side view of the operating rod of the valve head of FIG. 3 (threaded solution),
• la figure 10 en est une vue éclatée, • la figure 1 1 est une vue de dessus du disque mobile selon une variante de réalisation correspondant à un débattement maximum de 270 ° et,• Figure 10 is an exploded view, • Figure 1 1 is a top view of the movable disc according to an alternative embodiment corresponding to a maximum clearance of 270 ° and,
• la figure 12 est une vue de dessous du disque fixe correspondant. Les figures 1 et 2 représentent à titre d'exemple une tête de robinet désignée 1 dans son ensemble. Elle comporte un corps creux 2 de forme globalement cylindrique, comportant un passage d'entrée de liquide, en pratique situé en son extrémité inférieure et ici matérialisé par un joint d'embase 3, et un passage 4 de sortie de liquide, en pratique ménagé dans sa paroi et ici formé de deux ouvertures diamétralement opposées. De manière classique, ce corps comporte sur sa paroi extérieure un joint 5 destiné à permettre un montage étanche de ce corps dans un logement non représenté.• Figure 12 is a bottom view of the corresponding fixed disc. Figures 1 and 2 show by way of example a tap head designated 1 as a whole. It comprises a hollow body 2 of generally cylindrical shape, comprising a liquid inlet passage, in practice located at its lower end and here materialized by a base gasket 3, and a liquid outlet passage 4, in practice provided in its wall and here formed by two diametrically opposite openings. Conventionally, this body has on its outer wall a seal 5 intended to allow a tight mounting of this body in a housing not shown.
Dans ce corps sont montés, outre le joint d'embase 3, un disque fixe 6, un disque mobile 7, et une tige de manœuvre 8. La paroi interne du corps creux comporte un épaulement transversal 2A contre lequel vient porter un épaulement 8A de la tige de manœuvre, par l'intermédiaire d'une bague de friction 9. Le joint d'embase 3 est emboîté dans la partie inférieure du corps creux 2 de sorte qu'il contribue à appliquer le disque fixe contre le disque mobile, le disque mobile contre la tranche inférieure de la tige de manœuvre, et l'épaulement de cette tige contre celui du corps creux. En d'autres termes, le joint assure ici le maintien en place de l'empilement des disques superposés. Il comporte intérieurement une bague 3A.In this body are mounted, in addition to the base gasket 3, a fixed disc 6, a movable disc 7, and an operating rod 8. The internal wall of the body hollow has a transverse shoulder 2A against which comes a shoulder 8A of the operating rod, by means of a friction ring 9. The base gasket 3 is fitted in the lower part of the hollow body 2 so that 'it helps to apply the fixed disc against the movable disc, the movable disc against the lower edge of the operating rod, and the shoulder of this rod against that of the hollow body. In other words, the seal here maintains the stack of superimposed discs in place. It internally includes a ring 3A.
Le disque fixe 6 comporte une ouverture 10, ici en une partie ayant la forme d'un demi-disque bordé par un diamètre, pour le passage du liquide entrant par le passage d'entrée de liquide du corps creux. Cette ouverture est, dans l'exemple considéré bordée extérieurement par une portion périphérique 6A du disque de sorte que ce disque a une périphérie continue selon sensiblement un cercle : cela contribue à un bon positionnement sans fuite de ce disque fixe dans le corps.The fixed disc 6 has an opening 10, here in a part having the shape of a half-disc bordered by a diameter, for the passage of the liquid entering through the liquid inlet passage of the hollow body. This opening is, in the example considered bordered externally by a peripheral portion 6A of the disc so that this disc has a continuous periphery in substantially a circle: this contributes to good positioning without leakage of this fixed disc in the body.
Le disque mobile 7 comporte aussi une ouverture, notée 11 , ici aussi en une partie ; celle-ci a aussi la forme d'un demi-disque bordé par un diamètre. Par contre, cette ouverture ne comporte ici aucune bordure périphérique ; en effet, cette ouverture, qui n'est pas débouchante axialement (c'est à dire qu'elle ne traverse pas le disque mobile sur toute son épaisseur) est en regard radialement du passage de sortie de liquide.The movable disc 7 also has an opening, denoted 11, here also in part; it also has the shape of a half-disc bordered by a diameter. By cons, this opening here has no peripheral border; in fact, this opening, which is not axially opening (ie that it does not cross the movable disc over its entire thickness) is radially opposite the liquid outlet passage.
La tige de manœuvre 8 est montée mobile en rotation autour de l'axe longitudinal Z-Z ; elle est coaxiale au corps creux. Elle comporte une portion externe de commande notée 8B et une portion interne 8C située à l'intérieur du corps et comportant l'épaulement précité 8A.The operating rod 8 is mounted movable in rotation about the longitudinal axis Z-Z; it is coaxial with the hollow body. It comprises an external control portion denoted 8B and an internal portion 8C situated inside the body and comprising the abovementioned shoulder 8A.
Cette partie externe 8B comporte une zone de commande, en pratique cannelée, destinée à être actionnée par un utilisateur, et dont la géométrie (notamment son crantage) dépend de l'interface de commande avec lequel cette tige est destinée à coopérer. Et la partie interne 8C a une géométrie propre à transmettre au disque mobile le mouvement de rotation imparti à la portion externe de commande. Cette partie interne comporte ici sur sa tranche inférieure une saillie diamétrale 8D pénétrant dans une gorge diamétrale supérieure 7A du disque mobile 7.This external part 8B comprises a control area, in practice grooved, intended to be actuated by a user, and whose geometry (in particular its notching) depends on the control interface with which this rod is intended to cooperate. And the internal part 8C has a geometry suitable for transmitting to the mobile disk the rotational movement imparted to the external control portion. This internal part here comprises on its lower edge a diametral projection 8D penetrating into an upper diametral groove 7A of the movable disc 7.
La tige de manœuvre porte deux épaulements radiaux, tandis que le corps porte, sensiblement au même niveau le long de l'axe longitudinal, deux portées radiales. Ces épaulements et ces portées délimitent le débattement angulaire de la tige de manœuvre vis-à-vis du corps.The operating rod carries two radial shoulders, while the body carries, substantially at the same level along the longitudinal axis, two radial bearings. These shoulders and these spans delimit the angular movement of the operating rod with respect to the body.
Dans l'exemple considéré ici, les portées radiales sont délimitées dans la tranche supérieure externe du corps creux tandis que les épaulements sont ménagés sur la portion externe 8B de la tige de manœuvre, et sont donc à l'extérieur du corps creux. Toutefois, en variante cette coopération peut se faire à l'intérieur du corps.In the example considered here, the radial bearing surfaces are delimited in the upper external edge of the hollow body while the shoulders are formed on the external portion 8B of the operating rod, and are therefore outside the hollow body. However, as a variant, this cooperation can take place inside the body.
Selon le premier aspect de l'invention, l'un au moins des épaulements, ou l'une au moins des portées, est ménagé(e) sur une pièce rapportée (fixée au corps ou à la tige, selon le cas considéré). Pour des raisons pratiques, il est préférable que les deux épaulements, ou les deux portées, soient réalisé(e)s sur la pièce rapportée. Bien entendu, aussi bien les épaulements que les portées peuvent être réalisés sur des pièces rapportées.According to the first aspect of the invention, at least one of the shoulders, or at least one of the bearing surfaces, is formed on an attached part (fixed to the body or to the rod, depending on the case considered). For practical reasons, it is preferable that the two shoulders, or the two spans, are produced on the insert. Of course, both the shoulders and the spans can be made on attachments.
Plus précisément, les portées radiales sont ici ménagées dans une partie supérieure d'une portion supérieure du corps formant écrou, habituelle pour permettre la fixation de la tête de robinet dans son logement, en configuration d'utilisation. Ces portées ne sont repérables que sur la figure 1 , où l'on détecte des décrochements 12 dans cette portion formant écrou. Et les épaulements sont ménagés sur une collerette 13 de la tige de manœuvre ; ils ne sont pas visibles car ils bordent une saillie radiale 13A (reconnaissable par le fait qu'elle présente, à gauche de l'axe sur la figure 2, une plus grande dimension radiale qu'à droite de cet axe). Cette collerette 13 est ici une pièce distincte de la tige, de sorte que les deux épaulements sont ménagés sur une pièce rapportée. En variante non représentée, ce sont les deux portées qui sont ménagées sur la pièce rapportée liée au corps. De manière habituelle, un circlips 14 est prévu sur la partie externeMore specifically, the radial bearing surfaces are here provided in an upper part of an upper portion of the nut-forming body, usual for allowing the fixing of the valve head in its housing, in configuration of use. These spans can only be identified in FIG. 1, where detachments 12 are detected in this portion forming a nut. And the shoulders are formed on a flange 13 of the operating rod; they are not visible because they border a radial projection 13A (recognizable by the fact that it has, on the left of the axis in FIG. 2, a larger radial dimension than on the right of this axis). This collar 13 is here a separate part of the rod, so that the two shoulders are formed on an insert. In a variant not shown, these are the two bearing surfaces which are provided on the attached part linked to the body. Usually, a circlip 14 is provided on the external part
8B de la tige de manœuvre (seul son logement est montré sur la figure 2) et un joint d'étanchéité15 est prévu entre la partie interne 8C de la tige (en dessous de l'épaulement 8A) et la paroi interne du corps creux.8B of the operating rod (only its housing is shown in Figure 2) and a seal 15 is provided between the internal part 8C of the rod (below the shoulder 8A) and the internal wall of the hollow body.
La figure 3 représente en vue éclatée en perspective une variante de réalisation de la tête de robinet des figures 1 et 2. Les éléments communs entre ces deux variantes sont désignés par les mêmes chiffres que sur ces figures 1 et 2, mais affectés d'un indice "prime". Cette tête de robinet comporte ainsi un corps creux 2' contenant un disque fixe 6' (on voit ici qu'il comporte une saillie radiale qui permet d'en empêcher toute rotation à l'intérieur du corps), un disque mobile 7' et une partie interne 8C d'une tige de manœuvre 8', et muni en sa partie basse d'une bague 3'.3 shows an exploded perspective view of an alternative embodiment of the valve head of Figures 1 and 2. The common elements between these two variants are designated by the same numbers as in these Figures 1 and 2, but assigned a "prime" index. This valve head thus comprises a hollow body 2 ′ containing a fixed disc 6 ′ (we see here that it has a radial projection which makes it possible to prevent any rotation inside the body), a movable disc 7 ′ and an internal part 8C of an operating rod 8 ', and provided in its lower part with a ring 3'.
En fait la seule différence entre ces deux exemples de réalisation réside dans le fait, selon le second aspect de l'invention, indépendant du premier, que, sur cette figure 3, la tige de manœuvre est formée de deux parties distinctes, rapportées l'une à l'autre lors du montage. En d'autres termes, la tige de manœuvre 8' de la tête de robinet de la figure 3 est formée, comme celle des figures 1 et 2, d'une partie externe 8B' et d'une partie interne 8C, mais ces parties sont initialement indépendantes et présentent donc, une fois assemblées, un interface identifiable. Il mérite d'être noté que, dans cet exemple, la collerette 13' est ici encore une pièce rapportée, amovible ou non, et qu'elle est située dans la zone où se raccordent ces parties externe et interne, ce qui facilite l'assemblage de cette tige et des épaulements/portées délimitant le débattement en service.In fact the only difference between these two exemplary embodiments lies in the fact, according to the second aspect of the invention, independent of the first, that, in this FIG. 3, the operating rod is formed of two distinct parts, referred to as the to each other during assembly. In other words, the operating rod 8 'of the tap head of FIG. 3 is formed, like that of FIGS. 1 and 2, of an external part 8B' and an internal part 8C, but these parts are initially independent and therefore present, once assembled, an identifiable interface. It should be noted that, in this example, the flange 13 'is here again an insert, removable or not, and that it is located in the zone where these external and internal parts are connected, which facilitates the assembly of this rod and the shoulders / spans delimiting the travel in service.
De manière préférée, les deux parties 8B' et 8C de la tige 8' de la figure 3 sont raccordables l'une à l'autre de part et d'autre de la tranche supérieure du corps creux 2', de sorte qu'il est possible d'assembler l'empilement des disques 6' et 7' et de la partie 8C à l'intérieur du corps creux 2' avec le joint 3' avant de rendre solidaires les deux parties de la tige de manœuvre 8'. Toutefois, en variante non représentée, la liaison entre les deux parties de cette tige peut être située à l'intérieur du corps creux, par exemple au niveau de l'épaulement 8A', auquel cas, le raccordement des deux parties doit se faire avant de fixer l'empilement des disques à l'intérieur du corps creux. En variante non représentée connue en soi, le disque mobile peut être décomposé entre une partie axialement inférieure comportant l'ouverture 11 et une partie axialement supérieure, pleine, servant d'intermédiaire entre la tige et cette partie inférieure. Le détail de la coopération entre épaulements et portées radiales, dans l'un quelconque des robinets des figures 1 à 3, est représenté aux figures 4A, 4B, 5A et 5B.Preferably, the two parts 8B 'and 8C of the rod 8' of Figure 3 are connectable to each other on either side of the upper edge of the hollow body 2 ', so that it it is possible to assemble the stack of disks 6 'and 7' and of part 8C inside the hollow body 2 'with the joint 3' before making the two parts of the operating rod 8 'integral. However, in a variant not shown, the connection between the two parts of this rod may be located inside the hollow body, for example at the level of the shoulder 8A ′, in which case, the connection of the two parts must be made before to fix the stack of discs inside the hollow body. In a variant not shown known per se, the movable disc can be broken down between an axially lower part comprising the opening 11 and an axially upper, full part, serving as an intermediary between the rod and this lower part. The detail of the cooperation between shoulders and radial bearing surfaces, in any of the taps of Figures 1 to 3, is shown in Figures 4A, 4B, 5A and 5B.
Les figures 4A et 5B représentent deux géométries possibles d'une collerette adaptée à entourer la tige de manœuvre 8 ou 8'. On peut noter qu'elles comportent une ouverture non circulaire adaptée à coopérer avec la tige, en une zone où sa section n'est pas non plus circulaire, de sorte qu'aucune rotation intempestive est possible entre ces collerettes et cette tige.FIGS. 4A and 5B represent two possible geometries of a flange adapted to surround the operating rod 8 or 8 ′. It can be noted that they have a non-circular opening adapted to cooperate with the rod, in an area where its section is also not circular, so that no untimely rotation is possible between these flanges and this rod.
La figure 4A représente une collerette 23 par exemple identique à la collerette 13 ou 13' des figures précitées. Elle présente une saillie 23A de faible amplitude bordée par deux épaulements radiaux 23B et 23C. Quant à la figure 5A, elle représente une autre collerette 33 présentant une saillie 33A de plus grande amplitude angulaire (ici un peu supérieure à 90°) bordée par deux épaulements 33B et 33C.FIG. 4A represents a flange 23, for example identical to the flange 13 or 13 ′ of the abovementioned figures. It has a projection 23A of small amplitude bordered by two radial shoulders 23B and 23C. As for FIG. 5A, it represents another collar 33 having a projection 33A of greater angular amplitude (here a little more than 90 °) bordered by two shoulders 33B and 33C.
Aux figures 5A et 5B, ces collerettes sont représentées en combinaison avec les deux portées radiales du corps 2 ou 2', ménagées dans les exemples considérés dans les tranches supérieures de ces corps qui forment écrou (voir ci-dessus). Ces portées sont ici désignées par les références 22 et 22'. On notera que, dans les configurations des figures 4A etIn FIGS. 5A and 5B, these flanges are shown in combination with the two radial bearings of the body 2 or 2 ′, formed in the examples considered in the upper edges of these bodies which form the nut (see above). These ranges are here designated by the references 22 and 22 '. It will be noted that, in the configurations of FIGS. 4A and
5A, les collerettes 23 et 33 sont représentées dans une position angulaire où leurs épaulements 23B et 33B seraient en appui contre la portée 22. Par contre, sur ces figures 4B et 5B, ces collerettes sont représentées dans une position angulaire où leurs épaulements 23C et 33C sont en appui contre la portée 22'.5A, the flanges 23 and 33 are shown in an angular position where their shoulders 23B and 33B are in abutment against the bearing 22. On the other hand, in these FIGS. 4B and 5B, these flanges are shown in an angular position where their shoulders 23C and 33C are in abutment against the range 22 '.
Or on constate que, entre ses positions des figures 4A et 4B, la collerette 23 a tourné de 180° tandis que, entre ses positions des figures 5A et 5B, la collerette 33 a tourné de 90° seulement. Les figures 6 à 8 représentent les configurations relatives des deux disques 6 et 7 (ou 6' et 7') correspondant aux positions angulaires extrêmes des collerettes 23 et 33.However, it can be seen that, between its positions in FIGS. 4A and 4B, the flange 23 has rotated 180 ° while, between its positions in FIGS. 5A and 5B, the flange 33 has rotated only 90 °. FIGS. 6 to 8 represent the relative configurations of the two discs 6 and 7 (or 6 ′ and 7 ′) corresponding to the extreme angular positions of the flanges 23 and 33.
A la figure 6, les disques sont dans une configuration où les ouvertures des deux disques sont disjointes (l'ouverture du disque fixe se trouve sur cette figure dans la moitié inférieure de l'encombrement global des disques, tandis que l'ouverture du disque mobile, complètement masquée par la moitié supérieure du disque fixe qui est pleine, se trouve dans la moitié supérieure de cet encombrement global : il ne peut donc y avoir de passage de liquide au travers de l'empilement de disques : que la collerette utilisée soit celle de la figure 4A ou celle de la figure 5A, il n'y a donc aucun passage de liquide lorsque la collerette considérée est dans la configuration extrême de fermeture de la figure 4A ou 5A.In Figure 6, the discs are in a configuration where the openings of the two discs are disjoint (the fixed disc opening is found in this figure in the lower half of the overall size of the discs, while the disc opening mobile, completely hidden by the upper half of the fixed fixed disc which is full, is in the upper half of this overall size: there can therefore be no passage of liquid through the stack of discs: that the flange used is that of FIG. 4A or that of FIG. 5A, there is therefore no passage of liquid when the flange considered is in the extreme closed configuration of FIG. 4A or 5A.
A la figure 7, les ouvertures des deux disques coïncident , c'est à dire que l'une comme l'autre se trouvent dans la moitié inférieure de l'encombrement global de l'empilement de disques. Cette configuration relative des disques correspond à une rotation de 180° du disque mobile, ce qui correspond au passage de la collerette 23 de la configuration de la figure 4A à celle de la figure 4B, pour laquelle l'épaulement 23C est en appui contre la portée 22'. Cette configuration des deux disques est une configuration extrême d'ouverture (c'est à dire pour laquelle la section de passage pour le liquide est maximale), qui correspond en outre à une extrémité du débattement angulaire de la saillie 23A entre les portées 22 et 22'. Si α est le débattement angulaire maximal du disque mobile entre ses configurations de passage minimal, ou maximal, l'amplitude du débattement en service est, avec la collerette 23, égale à cette valeur.In FIG. 7, the openings of the two discs coincide, that is to say that both are located in the lower half of the overall size of the stack of discs. This relative configuration of the discs corresponds to a rotation of 180 ° of the movable disc, which corresponds to the passage of the flange 23 of the configuration of FIG. 4A to that of FIG. 4B, for which the shoulder 23C is in abutment against the reach 22 '. This configuration of the two discs is an extreme opening configuration (that is to say for which the passage section for the liquid is maximum), which also corresponds to one end of the angular movement of the projection 23A between the surfaces 22 and 22 '. If α is the maximum angular movement of the movable disc between its minimum or maximum passage configurations, the amplitude of the movement in service is, with the flange 23, equal to this value.
Par contre, la figure 8 représente une configuration où les ouvertures des deux disques ne coïncident qu'à moitié, en bas à droite (le disque mobile n'a tourné que de 90° par rapport à la configuration de la figure 6) alors que la portée 33C de la collerette est déjà en appui contre l'épaulement 22'. Ainsi, le débattement en service β de la tige de manœuvre, compte tenu du choix de la collerette 33, est très inférieur au débattement maximal du disque mobile (qui est déterminé par la géométrie des ouvertures des disques fixe et mobile).On the other hand, FIG. 8 represents a configuration where the openings of the two discs only coincide halfway, at the bottom right (the movable disc has only rotated 90 ° relative to the configuration of FIG. 6) while the bearing surface 33C of the collar is already in abutment against the shoulder 22 '. Thus, the service travel β of the operating rod, taking into account the choice of flange 33, is much less than the maximum clearance of the movable disc (which is determined by the geometry of the openings of the fixed and movable discs).
Dans la mesure où le débattement angulaire autorisé par la collerette 23 est de 180°, les disques se comportent comme dans une tête de robinet de type "demi-tour". De même, puisque le débattement angulaire autorisé par la collerette 33 est de 90°, les disques se comportent comme dans une tête de robinet de type "quart-de-tour". Pourtant, le changement structurel entre les deux configurations est le remplacement d'une collerette par une autre, tous les autres éléments de la tête de robinet restant les mêmes. On appréciera que l'on a ainsi deux têtes de robinet de deux types différents, ayant la même structure en dehors de la disposition relative de deux portées radiales sur une collerette par rapport à deux épaulements du corps, la tête de robinet ayant le plus petit débattement angulaire ayant ceci de particulier qu'elle comporte une paire de disques ayant un débattement donné entre une configuration de fermeture et une configuration de passage maximum, et une paire de portées sur la tige et une paire d'épaulements sur le corps qui délimitent pour cette tige un débattement autorisé sensiblement inférieur au débattement angulaire précité.Insofar as the angular movement authorized by the flange 23 is 180 °, the discs behave as in a tap head of the "half-turn" type. Likewise, since the angular movement authorized by the flange 33 is 90 °, the discs behave as in a tap head of the "quarter-turn" type. However, the structural change between the two configurations is the replacement of one flange with another, all the other elements of the valve head remaining the same. It will be appreciated that there are thus two tap heads of two different types, having the same structure apart from the relative arrangement of two radial bearings on a flange relative to two shoulders of the body, the tap head having the smallest angular clearance having the particularity that it comprises a pair of discs having a given clearance between a closed configuration and a maximum passage configuration, and a pair of bearings on the rod and a pair of shoulders on the body which delimit for this rod has an authorized clearance substantially lower than the above-mentioned angular clearance.
Il est vrai que, dans la configuration des disques de la figure 8, la section de passage de liquide est inférieure à celle de la figure 7, mais il est apparu que cela était un inconvénient tout à fait supportable.It is true that, in the configuration of the discs of Figure 8, the liquid passage section is smaller than that of Figure 7, but it appeared that this was a disadvantage quite bearable.
Les figures 9 et 10 représentent à titre d'exemple les deux parties constitutives de la tige de manœuvre 8' de la figure 3. La partie externe 8B' comporte ici un téton 25 dirigé vers le bas et dont la surface cylindrique est filetée, tandis que la partie interne 8C comporte un logement cylindrique 26 dont la paroi interne comporte un filetage correspondant. L'assemblage entre les deux parties peut donc se faire par simple vissage des deux parties l'une par rapport à l'autre. Dans ce cas, l'assemblage des deux parties est réversible. En variante non représentée, cet assemblage réversible est par exemple du type à baïonnette. La collerette 13' de la figure 3 est avantageusement disposée à l'interface entre ces deux parties et, si l'assemblage des deux parties est réversible, il est facile de rendre réversible le montage de la collerette.FIGS. 9 and 10 show by way of example the two constituent parts of the operating rod 8 ′ of FIG. 3. The external part 8B 'here comprises a stud 25 directed downwards and whose cylindrical surface is threaded, while that the internal part 8C comprises a cylindrical housing 26, the internal wall of which comprises a corresponding thread. The assembly between the two parts can therefore be done by simply screwing the two parts relative to each other. In this case, the assembly of the two parts is reversible. In a variant not shown, this reversible assembly is for example of the bayonet type. The collar 13 'of FIG. 3 is advantageously arranged at the interface between these two parts and, if the assembly of the two parts is reversible, it is easy to make reversible the mounting of the flange.
En variante non représentée l'assemblage est réalisé de manière irréversible, par exemple par collage ou par soudage, frettage ou sertissage, entre le téton et son logement (en fait ce téton et ce logement peuvent alors avoir une forme quelconque, par exemple polygonale ou ovale, éventuellement conique, pour éviter toute rotation relative). Dans une version particulièrement simple, il pourrait y avoir assemblage des deux parties suivant des surfaces uniquement transversales, mais la coopération d'un élément mâle (le téton) et d'un élément femelle (le logement) contribue fortement à la solidité de l'assemblage. Bien entendu, les implantations respectives du téton et du logement dans les deux parties de la tige peuvent être inversées, ou décentrées.In a variant not shown, the assembly is produced in an irreversible manner, for example by gluing or by welding, shrinking or crimping, between the stud and its housing (in fact this stud and this housing can then have any shape, for example polygonal or oval, possibly conical, to avoid any relative rotation). In a particularly simple version, there could be assembly of the two parts according to only transverse surfaces, but the cooperation of a male element (the nipple) and a female element (the housing) contributes greatly to the solidity of the assembly. Of course, the respective locations of the stud and of the housing in the two parts of the rod can be reversed, or off-center.
En tout état de cause, que l'assemblage soit définitif ou non, il subsiste toujours un interface dans la matière qui permet de reconnaître que la tige a été initialement formée de deux parties.In any event, whether the assembly is final or not, there always remains an interface in the material which makes it possible to recognize that the rod was initially formed from two parts.
Dans les figures précédentes, les disques ont des ouvertures définissant un débattement angulaire relatif de 180° entre la configuration extrême de fermeture et la configuration extrême de passage maximum. Mais on peut aussi utiliser des disques dont les ouvertures définissent un débattement angulaire relatif ayant une autre valeur, plus petite ou plus grande. C'est ainsi que les disques des têtes de robinet des figures 1 et 2, ou 3, peuvent être remplacés par des disques conformes aux figures 11 et 12 (pour le disque fixe, et le disque mobile, respectivement), auquel cas le débattement angulaire relatif est de 270° (voir à ce propos le document EP- 0 296 945). Dans ce cas, les portées solidaires du corps présentent un plus grand écartement angulaire (en pratique 270°) tandis que, en fonction de l'amplitude angulaire de la saillie de la collerette, on peut définir, par différence entre cette valeur de 270° et cette amplitude de la saillie, un débattement angulaire inférieur pour la tête de robinet prise dans son ensemble. C'est ainsi que, utilisée avec les disques des figures 11 et 12, la collerette 23 définit une tête de robinet "trois-quart-de-tour" tandis que la collerette 33 définit une autre tête de robinet de type "demi-tour".In the previous figures, the discs have openings defining a relative angular movement of 180 ° between the extreme closed configuration and the extreme maximum passage configuration. However, it is also possible to use discs whose openings define a relative angular displacement having another value, smaller or larger. Thus the discs of the tap heads of Figures 1 and 2, or 3, can be replaced by discs according to Figures 11 and 12 (for the fixed disc, and the movable disc, respectively), in which case the travel relative angular is 270 ° (see in this connection document EP-0 296 945). In this case, the surfaces integral with the body have a greater angular spacing (in practice 270 °) while, as a function of the angular amplitude of the projection of the flange, it is possible to define, by difference between this value of 270 ° and this amplitude of the projection, a lower angular clearance for the valve head taken as a whole. Thus, used with the discs of Figures 11 and 12, the flange 23 defines a head tap "three-quarter-turn" while the collar 33 defines another tap head type "half-turn".
Bien entendu, que le disque mobile puisse se déplacer sur 180° ou sur 270°, les formes des ouvertures mentionnées ci-dessus ne l'ont été qu'à titre d'exemples, et peuvent être remplacées par toute autre forme appropriée, en une ou plusieurs parties.Of course, whether the movable disc can move 180 ° or 270 °, the shapes of the openings mentioned above have been only as examples, and can be replaced by any other suitable shape, in one or more parties.
Dans ce qui précède, les écarts entre les amplitudes angulaires des couples de disques considérés et les amplitudes des débattements laissés par la coopération des portées et des épaulements ont été de 90°, mais d'autres valeurs sont possibles, telles que, par exemple, 30°, 45° ou 60°, ou, au-delà deIn the above, the differences between the angular amplitudes of the pairs of discs considered and the amplitudes of the movements left by the cooperation of the spans and the shoulders were 90 °, but other values are possible, such as, for example, 30 °, 45 ° or 60 °, or, beyond
90°, 120°, 135°, 150° voire 180°.90 °, 120 °, 135 °, 150 ° or even 180 °.
En d'autres termes, si l'on reprend les composants de la figure 3 :In other words, if we take the components of Figure 3:
• en modifiant l'amplitude angulaire entre les épaulements de la collerette de la tige de manœuvre, on peut obtenir des têtes de robinet présentant des amplitudes angulaires en service présentant des écarts multiples d'un angle donné,By modifying the angular amplitude between the shoulders of the flange of the operating rod, it is possible to obtain tap heads having angular amplitudes in service having multiple deviations from a given angle,
• en modifiant la longueur de la partie externe de la tige de manœuvre, on peut, avec le même corps (et le même contenu) utiliser la tête de robinet avec des interfaces de commande différents. II en résulte une grande faculté de standardisation des composants.• by modifying the length of the external part of the operating rod, it is possible, with the same body (and the same content) to use the valve head with different control interfaces. This results in a great ability to standardize the components.
Et si la liaison entre les parties de la tige, et/ou si le changement de l'écart angulaire entre les portées/épaulements, peut se faire à l'extérieur du corps, il est possible de réaliser toutes les têtes de robinet conformes aux besoins à partir d'un petit nombre de modules (corps contenant ses disques et la partie interne de la tige de manœuvre) que l'on complète au moment du montage en service, en lui ajoutant la collerette adaptée, ou en lui fixant la partie externe de tige ayant la bonne géométrie (longueur, crantage,...). And if the connection between the parts of the stem, and / or if the change of the angular difference between the spans / shoulders, can be done outside the body, it is possible to realize all the tap heads in accordance with requirements from a small number of modules (body containing its discs and the internal part of the operating rod) which are completed during assembly in service, by adding the appropriate collar, or by fixing the part external rod having the correct geometry (length, notching, ...).

Claims

REVENDICATIONS
1. Tête de robinet comportant :1. Tap head comprising:
- un corps (2, 2') ayant un axe longitudinal (Z-Z) et muni d'un passage d'entrée (3, 3') et d'un passage de sortie (4, 4'),- a body (2, 2 ') having a longitudinal axis (Z-Z) and provided with an inlet passage (3, 3') and an outlet passage (4, 4 '),
- deux disques superposés disposés transversalement dans ce corps entre ces passages d'entrée et de sortie, dont un disque fixe (6, 6') dans lequel est ménagée une première ouverture (10, 10') et un disque mobile (7, 7') adapté à tourner autour de cet axe et dans lequel est ménagée une seconde ouverture (11 , 11'), ces ouvertures définissant conjointement, en fonction de la position angulaire instantanée du disque mobile par rapport au disque fixe, une section de passage entre les passages d'entrée et de sortie, ce disque mobile ayant un débattement angulaire maximal (α) entre une première position extrême dans laquelle la section de passage est nulle et une seconde position extrême dans laquelle la section de passage est maximale,- two superimposed discs arranged transversely in this body between these inlet and outlet passages, including a fixed disc (6, 6 ') in which is formed a first opening (10, 10') and a movable disc (7, 7 ') adapted to rotate around this axis and in which a second opening (11, 11') is formed, these openings jointly defining, as a function of the instantaneous angular position of the movable disc relative to the fixed disc, a passage section between the inlet and outlet passages, this movable disc having a maximum angular clearance (α) between a first extreme position in which the passage section is zero and a second extreme position in which the passage section is maximum,
- une tige de manœuvre (8, 8') coaxiale au corps comportant une partie externe disposée en dehors du corps et une partie interne accouplant en rotation cette partie externe et le disque mobile,an operating rod (8, 8 ′) coaxial with the body comprising an external part disposed outside the body and an internal part coupling in rotation this external part and the movable disc,
- des portées radiales liées au corps et des épaulements radiaux liés à la tige de manœuvre adaptés à coopérer en sorte de délimiter un débattement angulaire de manœuvre (β) entre une configuration de repos dans laquelle le disque mobile est dans sa première position extrême, et une configuration extrême en service, caractérisée en ce que l'une au moins des surfaces radiales constituées par les épaulements et les portées est ménagée sur une pièce rapportée (13, 13') dont la géométrie est telle que le débattement angulaire de manœuvre (β) est significativement inférieur au débattement angulaire maximalradial bearing surfaces linked to the body and radial shoulders linked to the operating rod adapted to cooperate so as to delimit an angular maneuvering movement (β) between a rest configuration in which the movable disc is in its first extreme position, and an extreme configuration in service, characterized in that at least one of the radial surfaces formed by the shoulders and the bearing surfaces is formed on an insert (13, 13 ′) whose geometry is such that the angular movement of the maneuver (β ) is significantly less than the maximum angular travel
(α) du disque mobile.(α) of the moving disc.
2. Tête de robinet selon la revendication 1 , caractérisée en ce que cette pièce rapportée est disposée à l'extérieur du corps. 2. Tap head according to claim 1, characterized in that this insert is arranged outside the body.
3. Tête de robinet selon la revendication 1 ou la revendication 2, caractérisée en ce que cette pièce rapportée est accouplée en rotation à la tige de manœuvre.3. Tap head according to claim 1 or claim 2, characterized in that this insert is coupled in rotation to the operating rod.
4. Tête de robinet selon la revendication 3, caractérisée en ce que les portées sont ménagées sur une tranche transversale du corps traversée par la tige de manœuvre.4. Tap head according to claim 3, characterized in that the bearing surfaces are formed on a transverse section of the body crossed by the operating rod.
5. Tête de robinet selon l'une quelconque des revendications 1 à 4, caractérisée en ce que cette pièce rapportée porte en outre une autre desdites surfaces radiales. 5. Tap head according to any one of claims 1 to 4, characterized in that this insert also carries another of said radial surfaces.
6. Tête de robinet selon l'une quelconque des revendications 1 à 5, caractérisée en ce que cette pièce rapportée est une collerette entourant la tige de manœuvre.6. Tap head according to any one of claims 1 to 5, characterized in that this insert is a flange surrounding the operating rod.
7. Tête de robinet selon la revendication 6, caractérisée en ce que cette pièce rapportée comporte une saillie radiale bordée par les épaulements et dont l'amplitude angulaire détermine la différence entre le débattement angulaire maximal du disque mobile et le débattement angulaire de manœuvre de la tige de manœuvre.7. Tap head according to claim 6, characterized in that this insert has a radial projection bordered by the shoulders and whose angular amplitude determines the difference between the maximum angular movement of the movable disc and the angular maneuvering movement of the operating rod.
8. Tête de robinet selon l'une quelconque des revendications 1 à 7, caractérisée en ce que l'écart entre le débattement angulaire maximal du disque mobile et le débattement angulaire de manœuvre de la tige de manœuvre est compris entre 30° et 180°.8. Tap head according to any one of claims 1 to 7, characterized in that the difference between the maximum angular movement of the movable disc and the angular movement of the maneuvering rod is between 30 ° and 180 ° .
9. Tête de robinet selon la revendication 8, caractérisée en ce que ledit écart est d'environ 90°.9. Tap head according to claim 8, characterized in that said gap is about 90 °.
10. Tête de Robinet selon la revendication 9, caractérisée en ce que le débattement angulaire maximal du disque mobile est d'environ 180° et le débattement angulaire de manœuvre de la tige de manœuvre est d'environ 90°.10. Tap head according to claim 9, characterized in that the maximum angular movement of the movable disc is approximately 180 ° and the angular movement of the operating rod is approximately 90 °.
11. Tête de robinet selon la revendication 9, caractérisée en ce que le débattement angulaire maximal du disque mobile est d'environ 270° et le débattement angulaire de manœuvre de la tige de manœuvre est d'environ 180°. 11. A valve head according to claim 9, characterized in that the maximum angular movement of the movable disc is approximately 270 ° and the angular operating movement of the operating rod is approximately 180 °.
12. Tête de robinet selon la revendication 8, caractérisée en ce que, avec un écart de 180°, le débattement maximum est de 270° tandis que le débattement angulaire de la tige de manœuvre est d'environ 90°.12. Tap head according to claim 8, characterized in that, with a difference of 180 °, the maximum travel is 270 ° while the angular travel of the operating rod is about 90 °.
13. Tête de robinet selon l'une quelconque des revendications 1 à 12, caractérisée en ce que la pièce rapportée est fixée de manière réversible.13. Tap head according to any one of claims 1 to 12, characterized in that the insert is fixed reversibly.
14. Tête de robinet selon l'une quelconque des revendications 1 à 13, caractérisée en ce que les parties externe et interne de la tige de manœuvre sont constituées par des pièces rapportées l'une à l'autre.14. Tap head according to any one of claims 1 to 13, characterized in that the external and internal parts of the operating rod are constituted by parts attached to one another.
15. Tête de robinet selon la revendication 14, caractérisée en ce que l'une desdites pièces comporte un téton engagé dans un logement ménagé dans l'autre desdites pièces.15. Tap head according to claim 14, characterized in that one of said parts comprises a stud engaged in a housing formed in the other of said parts.
16. Tête de robinet selon la revendication 14 ou la revendication 15, caractérisée en ce que lesdites pièces sont rapportées de manière réversible. 16. Tap head according to claim 14 or claim 15, characterized in that said parts are reversibly attached.
17. Tête de robinet selon la revendication 16, caractérisée en ce que lesdites pièces sont rapportées par vissage.17. Tap head according to claim 16, characterized in that said parts are attached by screwing.
18. Tête de robinet selon la revendication 14 ou la revendication18. Tap head according to claim 14 or claim
15, caractérisée en ce que lesdites pièces sont rapportées de manière définitive. 15, characterized in that said parts are permanently added.
19. Tête de robinet selon la revendication 18, caractérisée en ce que lesdites pièces sont rapportées par soudage ou par collage.19. Tap head according to claim 18, characterized in that said parts are added by welding or by gluing.
20. Tête de robinet selon l'une quelconque des revendications 14 à20. Tap head according to any one of claims 14 to
19, caractérisée en ce que la pièce rapportée est fixée sur la tige de manœuvre dans la zone de raccordement des deux parties de cette tige de manœuvre. 19, characterized in that the insert is fixed to the operating rod in the connection zone of the two parts of this operating rod.
PCT/FR2004/001078 2003-05-07 2004-05-05 Modular valve head with adjustable angular amplitude WO2004099655A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0305572A FR2854673A1 (en) 2003-05-07 2003-05-07 MODULAR TAP HEAD WITH ADJUSTABLE ANGULAR AMPLITUDE.
FR03/05572 2003-05-07

Publications (1)

Publication Number Publication Date
WO2004099655A1 true WO2004099655A1 (en) 2004-11-18

Family

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PCT/FR2004/001078 WO2004099655A1 (en) 2003-05-07 2004-05-05 Modular valve head with adjustable angular amplitude

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FR (1) FR2854673A1 (en)
WO (1) WO2004099655A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112483671A (en) * 2020-12-10 2021-03-12 开平市凯赛德水暖配件有限公司 Positioning valve core

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3923284A (en) * 1974-09-03 1975-12-02 Ray E Stickler Faucet valve
EP0325980A2 (en) * 1988-01-27 1989-08-02 Kwc Ag Pivoting sliding valve
US4901750A (en) * 1988-09-30 1990-02-20 Masco Corporation Of Indiana Temperature and volume control valve assembly
EP0430896A2 (en) * 1989-11-08 1991-06-05 GALATRON S.r.l. Screw type valve with ceramic disks
US5058622A (en) * 1990-01-12 1991-10-22 Stockham Valves & Fittings, Inc. Valve lock assembly
US5143349A (en) * 1989-09-09 1992-09-01 Friedrich Grohe Armaturenfabrik Gmbh & Co. Valve with flow shield
EP0802361A2 (en) * 1996-04-15 1997-10-22 Emhart Inc. Valve assembly

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3923284A (en) * 1974-09-03 1975-12-02 Ray E Stickler Faucet valve
EP0325980A2 (en) * 1988-01-27 1989-08-02 Kwc Ag Pivoting sliding valve
US4901750A (en) * 1988-09-30 1990-02-20 Masco Corporation Of Indiana Temperature and volume control valve assembly
US5143349A (en) * 1989-09-09 1992-09-01 Friedrich Grohe Armaturenfabrik Gmbh & Co. Valve with flow shield
EP0430896A2 (en) * 1989-11-08 1991-06-05 GALATRON S.r.l. Screw type valve with ceramic disks
US5058622A (en) * 1990-01-12 1991-10-22 Stockham Valves & Fittings, Inc. Valve lock assembly
EP0802361A2 (en) * 1996-04-15 1997-10-22 Emhart Inc. Valve assembly

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112483671A (en) * 2020-12-10 2021-03-12 开平市凯赛德水暖配件有限公司 Positioning valve core

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