WO2012084942A1 - System for controlling a valve, and equipment for heating a building comprising a collector provided with such a valve - Google Patents

System for controlling a valve, and equipment for heating a building comprising a collector provided with such a valve Download PDF

Info

Publication number
WO2012084942A1
WO2012084942A1 PCT/EP2011/073402 EP2011073402W WO2012084942A1 WO 2012084942 A1 WO2012084942 A1 WO 2012084942A1 EP 2011073402 W EP2011073402 W EP 2011073402W WO 2012084942 A1 WO2012084942 A1 WO 2012084942A1
Authority
WO
WIPO (PCT)
Prior art keywords
ring
housing
valve
control system
axis
Prior art date
Application number
PCT/EP2011/073402
Other languages
French (fr)
Inventor
Stéphane GRAND-PIERRE
Matthieu Draber
Original Assignee
Vernet
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 Vernet filed Critical Vernet
Publication of WO2012084942A1 publication Critical patent/WO2012084942A1/en

Links

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
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/002—Actuating devices; Operating means; Releasing devices actuated by temperature variation
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/01—Control of temperature without auxiliary power
    • G05D23/02—Control of temperature without auxiliary power with sensing element expanding and contracting in response to changes of temperature
    • G05D23/021—Control of temperature without auxiliary power with sensing element expanding and contracting in response to changes of temperature the sensing element being a non-metallic solid, e.g. elastomer, paste

Definitions

  • the present invention relates to a control system of a valve including a pusher subjected to the force of a return spring.
  • the invention also relates to a heating installation of a building, comprising at least one fluid circulation manifold, provided with such a valve and such a control system of this valve.
  • each manifold is provided with a valve for controlling the circulation of the fluid.
  • This type of valve typically comprises a pusher permanently subjected to the force of a return spring which thus holds a shutter of the valve in a normal position is closed or open.
  • the latter is also equipped with a control system incorporating a thermostatic element: by heating a thermally expandable material that contains this thermostatic element, typically using a heating electric resistor, a moving part this thermostatic element acts on the pusher of the valve against its return spring.
  • this thermostatic element is arranged in a housing, which serves as a support for a fixed part of the thermostatic element, vis-à-vis which the movable part of this element is controlled in axial displacement.
  • the invention thus relates to the mounting of the aforementioned housing on the valve of a manifold.
  • Control systems are known at present whose fixing of the housing is rudimentary in the sense that the cover of this housing is permanently provided with a nut which is screwed directly onto a body of the valve.
  • DE-A-25 37 033, on which is based the preamble of claim 1 provides an example: in this type of system, the housing and the nut are free to rotate relative to each other only when the nut is not yet attached to the valve body, that is to say when the system is being assembled or dismounted, while the nut is rotatably connected to the housing only when the nut is screwed and tight around the valve body, ie when the system is in service for the purpose of controlling the valve.
  • US-A-4,848,389 and DE-U-80 20 318 provide examples of similar valve control systems.
  • Control systems are also known whose fastening of the casing is said to be "fast” in the sense that this casing is designed to be assembled reversibly on an independent ring, similar to a nut, which is previously screwed onto valve.
  • the installer after bringing the aforementioned ring on the valve, the installer must fix the housing to this ring, for example by clipping or by any other form of quick attachment.
  • the installer usually uses both hands to carry out the installation: one hand holds the current part of the housing, to exert an axial force against the return spring of the valve, while the other hand firmly holds the axial end of the housing facing the valve, this end being to cooperate with the ring for the purpose of their rapid attachment to one another.
  • the relative angular positioning between the housing and the valve is fixed or very difficult to modify: the electrical supply wires of the control system then run in often confused manner, inducing risks of connection error, in particular when several valves to be controlled are present.
  • the disassembly of the control system, necessary for maintenance, is complicated and usually requires tools.
  • the object of the present invention is to provide a control system that is easier and more convenient to install.
  • the subject of the invention is a control system for a valve, as defined in claim 1.
  • One of the basic ideas of the invention is to seek to improve the existing fastening mechanisms, interposing between the housing, containing the thermostatic actuating element of the valve, and an independent ring, first attached to the valve , an adaptation ring.
  • This ring has a dual function: on the one hand, it is designed to cooperate with the ring to achieve with it a quick reversible attachment and, secondly, it is pre-assembled to the housing being able to move axially by relative to this case between two opposite configurations.
  • the ring is provided to occupy an axial position in which it is locked in.
  • the housing and ring assembly then behaves in one piece with respect to the ring, both in the direction of the axis and in rotation about this axis, so that the installer can manipulate this set with one hand in order to fix it to the ring (or to disengage it from this ring during disassembly). Then, once the assembly is completed, the passage of the adapter ring in its second configuration, by an axial movement advantageously driven by the action of a return spring associated with the thermostatic element, releases the locking in rotation between the ring and the housing, without modifying the fixing between the ring and the ring: the housing can then freely rotate about itself about the axis, relative to the ring fixed to the ring.
  • control system according to the invention allows the control system according to the invention to adapt to the constraints of the installation environment, in particular its small size and / or the presence of several control systems adjacent, respectively associated with several juxtaposed collector valves. Given the ease of installing and uninstalling the control system according to the invention, it is possible to provide a high density of such systems along collectors. It is also understood that the invention thus allows great freedom for the external shape and dimensioning of the housing, given its possibility of angular orientation vis-à-vis the ring when the system is in use. Furthermore, the control system according to the invention is based on a limited number of parts, thus reducing its manufacturing cost and its handling time.
  • the invention also relates to a heating system of a building, as defined in claim 10.
  • FIG. 1 is an exploded perspective view of a valve and a control system of this valve, according to the invention
  • Figure 2 is a view similar to Figure 1, illustrating the system from another angle of view;
  • FIGS. 3 and 4 are sections in the same plane of a portion of the system of Figure 1, illustrating two configurations for this part of the system;
  • - Figure 5 is a partial longitudinal section of the valve and the system of Figure 1, illustrating the system during a first step of mounting the system on the valve;
  • - Figure 6 is a complete section, in the same plane as that of Figure 5, the valve and the control system, illustrating a subsequent step of mounting the control system on the valve;
  • FIG. 7 is a view similar to FIG. 5, illustrating a step of mounting subsequent to that illustrated in FIG. 6;
  • Figure 8 is a view similar to Figure 6, illustrating the operation of the control system.
  • FIGS. 1 and 2 there is shown a manifold 1 belonging to a heating system of a building.
  • This manifold 1 is intended to channel the flow of a hot fluid, for example from a boiler and supplying the manifold 1 via a transverse pipe 2.
  • a valve 3 In order to control the admission of hot fluid from the pipe 2 to the inside the manifold 1, the latter is provided with a valve 3: as shown in FIGS.
  • this valve 3 includes, in the embodiment considered here, a valve 4 able to close off the outlet of the pipe 2 in the manifold 1, being controlled in displacement inside the manifold by a pusher 5 whose end, opposite the valve 4, emerges outside the manifold 1, as clearly visible in Figures 1 and 2
  • the valve 3 also includes a return spring 6, which is mounted compressed within the valve 3 by subjecting the pusher 5 to a force tending to move the valve 4 away from the outlet of the pipe 2 in the collector. 1: in other words, in the absence of action on the pusher 5, the valve 3 is normally open, as shown in FIG.
  • valve 3 In order to control the valve 3, that is to say to control its opening and closing by acting in a controlled manner on its pusher 5, this valve is equipped with a control system detailed below. It is emphasized here that, in the context of the present invention, the embodiment of the valve 3 is not limiting, in the sense that other forms of valve can be envisaged as long as their pusher, subject to the the force of a return spring, can be actuated against this return spring by the control system according to the invention, as explained below. In particular, the invention can be applied to the control of a valve which, unlike the valve 3 considered in the figures, is normally closed.
  • control system essentially comprises a ring 10, a ring 20 and a casing 30 inside which various components are arranged, which will be described in more detail later, with reference to FIGS. 4.
  • the ring 10 has a tubular shape with a circular base, centered on an axis XX.
  • this ring 10 is internally provided with a thread 1 1 which, in the embodiment considered in the figures, does not extend continuously over the entire inner periphery of the ring, but is regularly interrupted following this periphery.
  • This tapping 1 1 is dimensioned to be screwed around a complementary thread 7 which is externally provided with the valve 3: in other words, the ring 10 is designed to be attached to the valve 3 by screwing about the axis XX.
  • the ring 10 can be called nut.
  • the ring 10 In its axial portion intended to be opposite to the valve 3, the ring 10 is internally provided with pins 12 which extend radially projecting towards the inside of the ring.
  • the pins 12, of which only some are visible in Figures 1 and 2, are regularly distributed along the inner periphery of the ring. Their interest will appear later.
  • the outer surface of the ring 10 is smooth. This aspect simplifies the understanding of the views by lightening the drawn features.
  • the ring 10 can effectively be provided smooth externally, without limiting its ease of implementation on the valve 3, in the sense that, as explained below, the ring 10 is designed to be, independently of the rest of the control system, screwed first on the valve 3: it is therefore understood that this screwing operation can be performed by rotating the ring 10 on itself, in particular by the inside of this ring with the help of the pieces 12 if needed.
  • the outer surface of the ring 10 is fluted to assist manual screwing.
  • one or more recessed notches may be provided outside the ring, in order to cooperate this or these notches hollow with a screwdriver type tool to participate in the disassembly of the ring if the latter was seized.
  • the ring 20 has a globally tubular shape with a circular base, which is centered on an axis which, in the assembled state of the control system, is found to coincide with the axis XX of the ring 10.
  • the ring 20 has an outside diameter equal to or slightly smaller than the inside diameter of the main body of the ring 10, which thus makes it possible to accommodate at least one axial portion, even substantially all of the ring 20 inside the ring 10, as explained below.
  • the tubular body of the ring 20 is traversed radially by a plurality of grooves 21, the same number as the pins 12 of the ring 10 and which are distributed substantially uniformly around the periphery of the ring 20.
  • Each of the grooves 21 has two opposed peripheral ends, namely an end 21A which is closed both upwardly and downwardly by corresponding walls of the ring 20, and an end 21B which is closed upward but which is open towards the bottom , As can be seen clearly in FIG. 2.
  • each groove 21 is delimited in the thickness of the tubular body of the ring 20, opening radially on the outside on either side of the body of the ring, and not opening axially on the outside only by its end 21 B, at which it is connected to the lower end edge of the ring.
  • Each groove 21 is dimensioned to receive one of the pins 12 of the ring 10: more specifically, each pin 12 may be axially received inside the end 21 B of one of the grooves 21, via the outlet to the bottom of this end 21 B, then, with a relative angular offset between the ring 10 and the ring 20, each of the pins 12 can be guided along the groove, passing from the end 21 B to the end 21 A of this gorge.
  • the pins 12 of the ring 10 and the grooves 21 of the ring 20 are designed to make a bayonet connection between the ring and the ring.
  • each groove 21 A of each groove 21 is delimited downwards by a cavity recess 22 complementary to the lower face of the pins 12: each of these indentations 22 is thus able to receive and retain, by complementarity of shapes, one of the pins 12 when this pin is found at the end 21 A of the corresponding groove 21.
  • the ring 20 is, at its lower axial end, internally provided with a plurality of notches 23, which extend radially projecting towards the inside of the ring 20, since the inner face of its main body, and which are distributed substantially uniformly around the inner periphery of this ring.
  • each of these notches 23 is located, along the periphery of the ring, between two successive grooves among the grooves 21.
  • the notches 23 are connected to each other by an inner ring 24 of the ring 20.
  • the ring 20 is, at its upper axial end, internally provided with a plurality of pallets 25, which extend radially inwardly projecting from the ring 20, from the inner face of its main body, and which are distributed substantially uniformly around the periphery of this ring.
  • each of these vanes 25 is located, along the periphery of the ring 20, in axial alignment with one of the grooves 21, as can be seen clearly in FIG.
  • the ring 20 is designed to be permanently joined to the housing 10. More precisely, as clearly visible in FIGS. 2 to 4, this housing 30 includes both an internal base 31, having a globally tubular shape with a circular base, centered on an axis intended to merge with the axis XX in the assembled state of the control system, and an outer cover 32 which is attached and fixed around the base 31, typically by interlocking, thus together defining a volume functional within which are arranged components belonging to the control system, which will be described below.
  • the base 31 is, at its lower axial end, externally provided with a clipping band 33 which is dimensioned to cooperate by wedging with the clipping vanes 25 of the ring 20, and thus hold down this ring 20 30 shows the ring 20 thus assembled to the housing 30.
  • the ring 20 is axially close to the base 31, by engaging this base to the inside the ring: by radial elastic deformation of the pallets 25 and the band 33, respectively outwardly and inwardly, the relative axial approximation between the ring 20 and the housing 30 leads to arranging the strip 33 axially beyond- below the vanes 25, the ring 20 then being permanently clipped to the housing 30, as shown in FIG.
  • the latter is provided with a plurality of slots 34, which extend in the direction of the axis XX and which open on the lower end edge of the base 31.
  • these slots 34 have another interest, in the sense that they are positioned and dimensioned so as to be able to accommodate, particularly at the lower ends of these slots 34, the notches 23 of the ring 20, as this is shown in FIG. 4.
  • the control system comprises a thermostatic element 40.
  • This thermostatic element includes a cup 41, which contains a heat-expandable material, such as an expandable wax, and which is fixedly arranged inside. of the cover 32, being supported by the base 31.
  • the thermostatic element 40 also comprises a piston 42, which is partially immersed inside the cup 41 and which is displaceable in translation under the action of the expansion of the thermodilatable material contained in this cup. In use, the piston 42 translates along an axis which, in the assembled state of the control system, coincides with the axis X-X.
  • the control system includes an electrical resistance 50, in particular a so-called PTC resistor.
  • This resistor 50 is powered by electrical wires 51 which run to the outside of the housing 30 in order to be connected to a not shown electrical power source, in particular by creeping between the base 31 and the cover 32. , as clearly visible in the left-hand part of FIGS. 3 and 4.
  • the electrical resistance 50 When the electrical resistance 50 is energized, the heat which it releases is transmitted to the thermally-expandable material, via the cup 41, which causes the expansion of this material and, thereby, the deployment of the piston 42 on the outside of the cup 41.
  • the piston 42 is supported axially against an upper plug 60, which is mounted inside the cover 32 axially movably and which is kinematically connected to a lower plug 61 arranged for the essential inside the base 31.
  • the bushels 60 and 61 are thus linked in translation to the piston 42 so that, when the piston deploys with respect to the cup 41, these plugs 60 and 61 are translated axially upwards, compressing a return spring 63 interposed between bushel 60 and hood 32.
  • a first step illustrated in FIG. 5, there is, on the one hand, the housing 30 inside which the thermostatic element 40, the electrical resistance 50, the bushings 60 and 61 and the spring 63 are arranged. , and to which is assembled the ring 20, as explained above. More specifically, in Figure 5, the ring 20 is assembled to the base 31, occupying its configuration of Figure 4. On the other hand, it has the ring 10, not yet attached to the ring 20. More precisely, this ring 10 is alone screwed on the valve 3.
  • the installer then grasps the cover 32, preferably with one hand, and positions the housing 30 above the ring 10, substantially coaxially with the latter, as shown in Figure 5. As indicated by the arrow F1 in FIG. 5, the installer then axially introduces the ring 20 into the inside of the ring 10, again by handling only the casing 30. The lower end edge of the ring 20 is thus brought to bear. bring axially to the upper face of the pins 12 of the ring 10.
  • the upper end of the pusher 5 interferes with the central components arranged inside the housing 30, more specifically with a spacer 64 secured to the region central of the lower face of the plug 61: by axial support pressing downwards, this spacer 64 acts on the pusher 5, moving it axially downward, until the valve 4 against the outlet of the pipe 2 into the manifold 1, as shown in Figure 6.
  • this spacer 64 acts on the pusher 5, moving it axially downward, until the valve 4 against the outlet of the pipe 2 into the manifold 1, as shown in Figure 6.
  • the installer must provide an axial force necessary to overcome the resistance of the spring 6, which is then more compressed, as can be seen by comparing Figures 5 and 6.
  • an additional axial force, downward, applied by the installer on the cover 32 leads to compress the spring 63.
  • the installer drives the housing 30 in rotation about itself about the axis XX, preferably always with the only hand through which it holds this housing, as indicated by the arrow F2 in Figure 6.
  • the pins 12 can then engage in the grooves 21, the installer having to chain a first downward movement of the housing 30, and a drive movement in rotation, here in the clockwise direction, of this housing, to accommodate the pins 12 at the ends 21 A of the grooves 21.
  • the installer performs typical movements of a bayonet attachment.
  • the ring 20 is thus locked axially relative to the housing 30, it then passes from its configuration of Figure 4 to its configuration of Figure 3, thus leading to the disengagement of the notches 23 vis-à-vis the slots 34.
  • the control system is then found in the state shown in Figure 7, that is to say that this control system is ready for service.
  • the ring 20 is advantageously housed substantially entirely within the ring 10, which gives the control system a particularly attractive exterior aesthetic, while protecting the ring.
  • FIG. 8 illustrates a potential subsequent service state: the thermostatic element 40 is heated by the resistor 50, which results in the deployment of its piston 42 and thereby the axial upward drive of the bushings 60 and 61 and of the spacer 64.
  • the pusher 5 is driven upwards, then opening the outlet of the pipe 2 in the manifold 1, this outlet being hitherto closed by the valve 4 as shown in Figure 7.
  • the spring 63 recalls the piston 42 to the cup 41 through the plug 60, while the return spring 6 pushes the pusher down .
  • the housing 30 is free to turn about itself about the axis XX in particular with the ring 20.
  • the cover 32 can be angularly oriented at the discretion of the installer, in particular to position the son 51 best, especially taking into account the location environment of the control system, as explained in detail in the introductory part of this document.
  • the control system can of course be dismantled, and this just as easily as it was mounted.
  • the installer seizes, advantageously with one hand, the housing 30 and exerts an axial force down, while printing at this time. housing a rotational movement, clockwise or anti-clockwise, around the axis XX, until the notches 23 are engaged in the slots 34: in other words, by means of a compression of the return spring 63, the installer passes the 20 of its configuration of Figure 3 to its configuration of Figure 4.
  • the installer prints the housing 30 a rotation about the axis XX, in the case present in a counterclockwise direction: the ring 20 then being rotatably connected to the housing 30, this rotational movement makes it possible to move the grooves 21 vis-à-vis the pins 12, so as to pass them 21A ends B.
  • the installer can disengage the housing 30 and the ring 20 assembled to this housing vis-à-vis the ring 10, with decompressions of the springs 63 and 6.
  • the ring 10 remains in place on the valve 3.
  • the notches 23 and the slots 34 may be envisaged with regard to complementary reliefs of, respectively, the ring 20 and the housing 30, so that these reliefs engage one with the other via an axial approximation between the ring and the housing, so as to lock in relative rotation the ring and the housing in a configuration similar to that shown in Figure 4, it being understood that, as for the notches 23 and the slots 34 , the aforementioned reliefs can be reversibly disengaged, via an axial distance between the ring and the housing, so as to uncouple in rotation these two parts in a configuration similar to the configuration shown in Figure 3; for example, the upper surface of the ring 24 of the ring 20 and the lower end edge of the base 31 may respectively have recessed profiles and complementary bumps;
  • the embodiment concerning the pins 12 and the grooves 21 is not limited to the bayonet fixing connection between the ring 10 and the ring
  • any type of quick fastening can be envisaged between the ring and the ring as long as, under the action of the corresponding fastening means, the ring 20 is held axially downward relative to the housing 30, to allow its passage from its assembly-disassembly configuration of Figure 4 to its service configuration of Figure 3.

Abstract

The invention relates to a control system which comprises a housing (30) in which a thermostatic element (40), containing a thermally expandable material and including a stationary portion (41), is arranged, said housing being supported in a stationary manner by the housing, and a mobile portion (42), which can be translated along an axis (X-X) relative to the stationary portion by means of the expansion of the thermally expandable material. The aim of said system is to control a valve (3) including a tappet (5) which is actuated, against a return spring (6) belonging to the valve, by means of an axial movement of the mobile portion of the thermostatic element when the housing is mounted on the valve by means of a ring (10) of the control system, said ring being suitable for being added to the valve separately from the housing, in particular by screwing. In order to render the control system easier and more convenient to install, said system also comprises a collar (20) for mechanically linking the housing and the ring together. Said collar is suitable for being attached to the ring in a reversible manner, for example by a bayonet-shaped link. Moreover, said collar is permanently installed on the housing so as to move about the axis between a mounting/dismounting configuration in which, regardless of whether the collar is separated from the ring or attached to said ring, the collar is rotatably connected to the housing about the axis, and a service configuration in which the collar, when attached to the ring, and the housing are free to rotate about the axis relative to one another.

Description

SYSTEME DE COMMANDE D'UNE VANNE, ET INSTALLATION DE  SYSTEM FOR CONTROLLING A VALVE, AND INSTALLATION OF
CHAUFFAGE D'UN BATIMENT COMPORTANT UN COLLECTEUR  HEATING A BUILDING COMPRISING A COLLECTOR
POURVU D'UNE TELLE VANNE La présente invention concerne un système de commande d'une vanne incluant un poussoir soumis à l'effort d'un ressort de rappel. L'invention concerne également une installation de chauffage d'un bâtiment, comportant au moins un collecteur de circulation de fluide, pourvu d'une telle vanne et d'un tel système de commande de cette vanne.  The present invention relates to a control system of a valve including a pusher subjected to the force of a return spring. The invention also relates to a heating installation of a building, comprising at least one fluid circulation manifold, provided with such a valve and such a control system of this valve.
Dans le domaine du chauffage des bâtiments, il est connu de faire circuler un fluide chaud dans des collecteurs qui, par exemple, alimentent des serpentins de chauffe du sol ou des radiateurs. Le contrôle de la température est réalisée en fonction de la circulation effective du fluide chaud, c'est-à-dire selon que les collecteurs sont ouverts ou fermés. Pour ce faire, chaque collecteur est pourvu d'une vanne de commande de la circulation du fluide. Ce genre de vanne comprend typiquement un poussoir soumis en permanence à l'effort d'un ressort de rappel qui maintient ainsi un obturateur de la vanne dans une position normale soit fermée, soit ouverte. Pour actionner cet obturateur de la vanne, cette dernière est également équipée d'un système de commande intégrant un élément thermostatique : en échauffant une matière thermodilatable que contient cet élément thermostatique, typiquement à l'aide d'une résistance électrique chauffante, une partie mobile de cet élément thermostatique agit sur le poussoir de la vanne à rencontre de son ressort de rappel.  In the field of heating buildings, it is known to circulate a hot fluid in collectors which, for example, feed the floor heating coils or radiators. The control of the temperature is carried out according to the effective circulation of the hot fluid, that is to say according to whether the collectors are open or closed. To do this, each manifold is provided with a valve for controlling the circulation of the fluid. This type of valve typically comprises a pusher permanently subjected to the force of a return spring which thus holds a shutter of the valve in a normal position is closed or open. To actuate this shutter of the valve, the latter is also equipped with a control system incorporating a thermostatic element: by heating a thermally expandable material that contains this thermostatic element, typically using a heating electric resistor, a moving part this thermostatic element acts on the pusher of the valve against its return spring.
En pratique, cet élément thermostatique est agencé dans un boîtier, qui sert de support à une partie fixe de l'élément thermostatique, vis-à-vis de laquelle la partie mobile de cet élément est commandée en déplacement axial. L'invention s'intéresse ainsi au montage du boîtier précité sur la vanne d'un collecteur.  In practice, this thermostatic element is arranged in a housing, which serves as a support for a fixed part of the thermostatic element, vis-à-vis which the movable part of this element is controlled in axial displacement. The invention thus relates to the mounting of the aforementioned housing on the valve of a manifold.
On connaît actuellement des systèmes de commande dont la fixation du boîtier est rudimentaire, dans le sens où le capot de ce boîtier est pourvu à demeure d'un écrou qui est vissé directement sur un corps de la vanne. DE-A-25 37 033, sur lequel est basé le préambule de la revendication 1 , en fournit un exemple : dans ce genre de système, le boîtier et l'écrou sont libres de tourner l'un par rapport à l'autre uniquement lorsque l'écrou n'est pas encore fixé sur le corps de vanne, autrement dit lorsque le système est en cours de montage ou de démontage, tandis que l'écrou se trouve lié en rotation au boîtier uniquement lorsque l'écrou est vissé et serré autour du corps de vanne, autrement dit lorsque le système est en service aux fins de commande de la vanne. US-A-4 848 389 et DE-U-80 20 318 fournissent des exemples de système de commande de vanne similaires. Ce type de fixation est fastidieux à mettre en œuvre pour l'installateur : en effet, pendant que ce dernier visse l'écrou, l'installateur doit fournir un effort axial à rencontre du ressort de rappel de la vanne. Cette opération, qui nécessite les deux mains de l'installateur, s'avère d'autant plus difficile à réaliser que des fils d'alimentation électrique s'étendant depuis le boîtier gênent les manipulations, et que l'environnement d'intervention est souvent difficile d'accès, exigu et sombre, généralement avec plusieurs vannes adjacentes. Control systems are known at present whose fixing of the housing is rudimentary in the sense that the cover of this housing is permanently provided with a nut which is screwed directly onto a body of the valve. DE-A-25 37 033, on which is based the preamble of claim 1, provides an example: in this type of system, the housing and the nut are free to rotate relative to each other only when the nut is not yet attached to the valve body, that is to say when the system is being assembled or dismounted, while the nut is rotatably connected to the housing only when the nut is screwed and tight around the valve body, ie when the system is in service for the purpose of controlling the valve. US-A-4,848,389 and DE-U-80 20 318 provide examples of similar valve control systems. This type of fixing is tedious to implement for the installer: indeed, while the latter screws the nut, the installer must provide an axial force against the return spring of the valve. This operation, which requires both hands of the installer, proves all the more difficult to achieve that power supply son extending from the housing interfere with the manipulations, and that the environment of intervention is often difficult to access, cramped and dark, usually with several adjacent valves.
On connaît par ailleurs des systèmes de commande dont la fixation du boîtier est dite « rapide >> dans le sens où ce boîtier est conçu pour être assemblé de manière réversible sur un anneau indépendant, s'apparentant à un écrou, qui est préalablement vissé sur la vanne. Dans ce cas, après avoir rapporté l'anneau précité sur la vanne, l'installateur doit fixer le boîtier à cet anneau, par exemple par clipsage ou par toute autre forme de fixation rapide. Dans tous les cas, l'installateur utilise généralement ses deux mains pour réaliser l'installation : une main tient la partie courante du boîtier, pour y exercer un effort axial à rencontre du ressort de rappel de la vanne, tandis que l'autre main tient fermement l'extrémité axiale du boîtier tournée vers la vanne, cette extrémité étant à faire coopérer avec l'anneau aux fins de leur fixation rapide l'un à l'autre.  Control systems are also known whose fastening of the casing is said to be "fast" in the sense that this casing is designed to be assembled reversibly on an independent ring, similar to a nut, which is previously screwed onto valve. In this case, after bringing the aforementioned ring on the valve, the installer must fix the housing to this ring, for example by clipping or by any other form of quick attachment. In all cases, the installer usually uses both hands to carry out the installation: one hand holds the current part of the housing, to exert an axial force against the return spring of the valve, while the other hand firmly holds the axial end of the housing facing the valve, this end being to cooperate with the ring for the purpose of their rapid attachment to one another.
Dans tous les cas, à la fin du montage, le positionnement angulaire relatif entre le boîtier et la vanne est figé ou très difficilement modifiable : les fils d'alimentation électriques du système de commande cheminent alors de manière souvent confuse, en induisant des risque d'erreur de connexion, en particulier lorsque plusieurs vannes à commander sont présentes. De plus, le démontage du système de commande, nécessaire en cas de maintenance, s'avère compliqué et nécessite généralement des outils.  In any case, at the end of the assembly, the relative angular positioning between the housing and the valve is fixed or very difficult to modify: the electrical supply wires of the control system then run in often confused manner, inducing risks of connection error, in particular when several valves to be controlled are present. In addition, the disassembly of the control system, necessary for maintenance, is complicated and usually requires tools.
Le but de la présente invention est de proposer un système de commande qui soit plus facile et plus pratique à installer.  The object of the present invention is to provide a control system that is easier and more convenient to install.
A cet effet, l'invention a pour objet un système de commande d'une vanne, tel que défini à la revendication 1 .  For this purpose, the subject of the invention is a control system for a valve, as defined in claim 1.
Une des idées à la base de l'invention est de chercher à améliorer les mécanismes de fixation existants, en interposant entre le boîtier, contenant l'élément thermostatique d'actionnement de la vanne, et un anneau indépendant, rapporté en premier sur la vanne, une bague d'adaptation. Cette bague a une double fonction : d'une part, elle est conçue pour coopérer avec l'anneau pour réaliser avec ce dernier une fixation rapide réversible et, d'autre part, elle est pré-assemblée au boîtier en pouvant se déplacer axialement par rapport à ce boîtier entre deux configurations opposées. Ainsi, plus précisément, lors du montage ou du démontage du système de commande, la bague est prévue pour occuper une position axiale dans laquelle elle se trouve bloquée en rotation par rapport au boîtier : l'ensemble boîtier et bague se comporte alors d'un seul tenant vis-à-vis de l'anneau, tant suivant la direction de l'axe qu'en rotation autour de cet axe, si bien que l'installateur peut manipuler cet ensemble d'une seule main afin de le fixer à l'anneau (ou de le dégager vis-à-vis de cet anneau lors d'un démontage). Puis, une fois le montage terminé, le passage de la bague d'adaptation dans sa seconde configuration, par un mouvement axial avantageusement impulsé par l'action d'un ressort de rappel associé à l'élément thermostatique, libère le blocage en rotation entre la bague et le boîtier, sans modifier la fixation entre la bague et l'anneau : le boîtier peut alors librement tourner sur lui-même autour de l'axe, par rapport à la bague fixée à l'anneau. Cette possibilité d'orientation angulaire libre pour le boîtier permet au système de commande conforme à l'invention de s'adapter aux contraintes de l'environnement d'installation, en particulier à son exiguïté et/ou à la présence de plusieurs systèmes de commande adjacents, respectivement associés à plusieurs vannes de collecteurs juxtaposés. Compte tenu de la facilité à installer et à désinstaller le système de commande conforme à l'invention, on peut prévoir une forte densité de tels systèmes le long de collecteurs. On comprend également que l'invention autorise ainsi une grande liberté pour la forme extérieure et le dimensionnement du boîtier, eu égard à sa possibilité d'orientation angulaire vis-à-vis de la bague lorsque le système est en service. Par ailleurs, le système de commande conforme à l'invention repose sur un nombre de pièces restreint, réduisant ainsi son coût de fabrication et son temps de manipulation. One of the basic ideas of the invention is to seek to improve the existing fastening mechanisms, interposing between the housing, containing the thermostatic actuating element of the valve, and an independent ring, first attached to the valve , an adaptation ring. This ring has a dual function: on the one hand, it is designed to cooperate with the ring to achieve with it a quick reversible attachment and, secondly, it is pre-assembled to the housing being able to move axially by relative to this case between two opposite configurations. Thus, more specifically, during assembly or disassembly of the control system, the ring is provided to occupy an axial position in which it is locked in. rotation relative to the housing: the housing and ring assembly then behaves in one piece with respect to the ring, both in the direction of the axis and in rotation about this axis, so that the installer can manipulate this set with one hand in order to fix it to the ring (or to disengage it from this ring during disassembly). Then, once the assembly is completed, the passage of the adapter ring in its second configuration, by an axial movement advantageously driven by the action of a return spring associated with the thermostatic element, releases the locking in rotation between the ring and the housing, without modifying the fixing between the ring and the ring: the housing can then freely rotate about itself about the axis, relative to the ring fixed to the ring. This possibility of free angular orientation for the housing allows the control system according to the invention to adapt to the constraints of the installation environment, in particular its small size and / or the presence of several control systems adjacent, respectively associated with several juxtaposed collector valves. Given the ease of installing and uninstalling the control system according to the invention, it is possible to provide a high density of such systems along collectors. It is also understood that the invention thus allows great freedom for the external shape and dimensioning of the housing, given its possibility of angular orientation vis-à-vis the ring when the system is in use. Furthermore, the control system according to the invention is based on a limited number of parts, thus reducing its manufacturing cost and its handling time.
Des caractéristiques additionnelles avantageuses du système de commande conforme à l'invention, prises isolément ou selon toutes les combinaisons techniquement possibles, sont spécifiées aux revendications 2 à 9.  Additional advantageous features of the control system according to the invention, taken individually or in any technically possible combination, are specified in claims 2 to 9.
L'invention a également pour objet une installation de chauffage d'un bâtiment, telle que définie à la revendication 10.  The invention also relates to a heating system of a building, as defined in claim 10.
L'invention sera mieux comprise à la lecture de la description qui va suivre, donnée uniquement à titre d'exemple et faite en se référant aux dessins sur lesquels :  The invention will be better understood on reading the description which follows, given solely by way of example and with reference to the drawings in which:
- la figure 1 est une perspective éclatée d'une vanne et d'un système de commande de cette vanne, conforme à l'invention ;  - Figure 1 is an exploded perspective view of a valve and a control system of this valve, according to the invention;
- la figure 2 est une vue analogue à la figure 1 , illustrant le système sous un autre angle de vue ;  - Figure 2 is a view similar to Figure 1, illustrating the system from another angle of view;
- les figures 3 et 4 sont des coupes, dans un même plan, d'une partie du système de la figure 1 , illustrant deux configurations pour cette partie du système ;  - Figures 3 and 4 are sections in the same plane of a portion of the system of Figure 1, illustrating two configurations for this part of the system;
- la figure 5 est une coupe longitudinale partielle de la vanne et du système de la figure 1 , illustrant le système au cours d'une première étape du montage du système sur la vanne ; - la figure 6 est une coupe complète, dans le même plan que celui de la figure 5, de la vanne et du système de commande, illustrant une étape subséquente de montage du système de commande sur la vanne ; - Figure 5 is a partial longitudinal section of the valve and the system of Figure 1, illustrating the system during a first step of mounting the system on the valve; - Figure 6 is a complete section, in the same plane as that of Figure 5, the valve and the control system, illustrating a subsequent step of mounting the control system on the valve;
- la figure 7 est une vue analogue à la figure 5, illustrant une étape du montage subséquente à celle illustrée par la figure 6 ; et  FIG. 7 is a view similar to FIG. 5, illustrating a step of mounting subsequent to that illustrated in FIG. 6; and
- la figure 8 est une vue analogue à la figure 6, illustrant le fonctionnement du système de commande.  - Figure 8 is a view similar to Figure 6, illustrating the operation of the control system.
Sur les figures 1 et 2 est représenté un collecteur 1 appartenant à une installation de chauffage d'un bâtiment. Ce collecteur 1 est destiné à canaliser l'écoulement d'un fluide chaud, provenant par exemple d'une chaudière et alimentant le collecteur 1 via une conduite transversale 2. Afin de commander l'admission de fluide chaud depuis la conduite 2 à l'intérieur du collecteur 1 , ce dernier est pourvu d'une vanne 3 : comme représenté sur les figures 5 à 7, cette vanne 3 inclut, dans l'exemple de réalisation considéré ici, un clapet 4 à même d'obturer le débouché de la conduite 2 dans le collecteur 1 , en étant commandé en déplacement à l'intérieur du collecteur par un poussoir 5 dont l'extrémité, opposée au clapet 4, émerge à l'extérieur du collecteur 1 , comme bien visible sur les figures 1 et 2. La vanne 3 inclut également un ressort de rappel 6, qui est monté comprimé au sein de la vanne 3 en soumettant le poussoir 5 à un effort tendant à écarter le clapet 4 vis-à-vis du débouché de la conduite 2 dans le collecteur 1 : autrement dit, en l'absence d'action extérieure sur le poussoir 5, la vanne 3 est normalement ouverte, comme représenté sur la figure 5.  In Figures 1 and 2 there is shown a manifold 1 belonging to a heating system of a building. This manifold 1 is intended to channel the flow of a hot fluid, for example from a boiler and supplying the manifold 1 via a transverse pipe 2. In order to control the admission of hot fluid from the pipe 2 to the inside the manifold 1, the latter is provided with a valve 3: as shown in FIGS. 5 to 7, this valve 3 includes, in the embodiment considered here, a valve 4 able to close off the outlet of the pipe 2 in the manifold 1, being controlled in displacement inside the manifold by a pusher 5 whose end, opposite the valve 4, emerges outside the manifold 1, as clearly visible in Figures 1 and 2 The valve 3 also includes a return spring 6, which is mounted compressed within the valve 3 by subjecting the pusher 5 to a force tending to move the valve 4 away from the outlet of the pipe 2 in the collector. 1: in other words, in the absence of action on the pusher 5, the valve 3 is normally open, as shown in FIG.
En vue de commander la vanne 3, c'est-à-dire de piloter son ouverture et sa fermeture en agissant de manière contrôlée sur son poussoir 5, cette vanne est équipée d'un système de commande détaillé ci-après. On souligne ici que, dans le cadre de la présente invention, la forme de réalisation de la vanne 3 n'est pas limitative, dans le sens où d'autres formes de vanne peuvent être envisagées du moment que leur poussoir, soumis à l'effort d'un ressort de rappel, puisse être actionné à rencontre de ce ressort de rappel par le système de commande conforme à l'invention, comme expliqué ci-après. En particulier, l'invention peut être appliquée à la commande d'une vanne qui, contrairement à la vanne 3 considérée sur les figures, est normalement fermée.  In order to control the valve 3, that is to say to control its opening and closing by acting in a controlled manner on its pusher 5, this valve is equipped with a control system detailed below. It is emphasized here that, in the context of the present invention, the embodiment of the valve 3 is not limiting, in the sense that other forms of valve can be envisaged as long as their pusher, subject to the the force of a return spring, can be actuated against this return spring by the control system according to the invention, as explained below. In particular, the invention can be applied to the control of a valve which, unlike the valve 3 considered in the figures, is normally closed.
Comme bien visible sur les figures 1 et 2, le système de commande comprend essentiellement un anneau 10, une bague 20 et un boîtier 30 à l'intérieur duquel sont agencés divers composants qui seront décrits plus en détail ultérieurement, en regard des figures 3 et 4.  As clearly visible in FIGS. 1 and 2, the control system essentially comprises a ring 10, a ring 20 and a casing 30 inside which various components are arranged, which will be described in more detail later, with reference to FIGS. 4.
Comme bien visible sur les figures 1 et 2, l'anneau 10 présente une forme tubulaire à base circulaire, centrée sur un axe X-X. Dans sa partie axiale destinée à être tournée vers la vanne 3, cet anneau 10 est intérieurement pourvu d'un taraudage 1 1 qui, dans la forme de réalisation considérée sur les figures, ne s'étend pas continûment sur toute la périphérie intérieure de l'anneau, mais est régulièrement interrompu suivant cette périphérie. Ce taraudage 1 1 est dimensionné pour pouvoir être vissé autour d'un filetage complémentaire 7 dont est pourvue extérieurement la vanne 3 : autrement dit, l'anneau 10 est conçu pour être rapporté sur la vanne 3 par vissage autour de l'axe X-X. A cet égard, on comprend que l'anneau 10 peut être qualifié d'écrou. As clearly visible in Figures 1 and 2, the ring 10 has a tubular shape with a circular base, centered on an axis XX. In its axial part intended to be turned towards the valve 3, this ring 10 is internally provided with a thread 1 1 which, in the embodiment considered in the figures, does not extend continuously over the entire inner periphery of the ring, but is regularly interrupted following this periphery. This tapping 1 1 is dimensioned to be screwed around a complementary thread 7 which is externally provided with the valve 3: in other words, the ring 10 is designed to be attached to the valve 3 by screwing about the axis XX. In this regard, it is understood that the ring 10 can be called nut.
Dans sa partie axiale destinée à être opposée à la vanne 3, l'anneau 10 est intérieurement pourvu de pions 12 qui s'étendent radialement en saillie vers l'intérieur de l'anneau. Les pions 12, dont seuls certains sont visibles sur les figures 1 et 2, sont régulièrement répartis suivant la périphérie intérieure de l'anneau. Leur intérêt apparaîtra plus loin.  In its axial portion intended to be opposite to the valve 3, the ring 10 is internally provided with pins 12 which extend radially projecting towards the inside of the ring. The pins 12, of which only some are visible in Figures 1 and 2, are regularly distributed along the inner periphery of the ring. Their interest will appear later.
Sur les figures, la surface extérieure de l'anneau 10 est lisse. Cet aspect simplifie la compréhension des vues en allégeant les traits dessinés. En pratique, l'anneau 10 peut effectivement être prévu lisse extérieurement, sans limiter sa facilité de mise en place sur la vanne 3, dans le sens où, comme expliqué plus loin, l'anneau 10 est conçu pour être, indépendamment du reste du système de commande, vissé en premier sur la vanne 3 : on comprend donc que cette opération de vissage peut être réalisée en entraînant en rotation sur lui-même l'anneau 10, notamment par l'intérieur de cet anneau en s'aidant des pions 12 si besoin. A titre de variante de réalisation, non représentée, la surface extérieure de l'anneau 10 est cannelée pour aider au vissage manuel. Dans ce cas, en plus des cannelures extérieures précitées, qui sont orientées selon la direction de l'axe X- X, un ou plusieurs crans en creux peuvent être prévus à l'extérieur de l'anneau, en vue de faire coopérer ce ou ces crans en creux avec un outil de type tournevis pour participer au démontage de l'anneau si ce dernier se trouvait grippé.  In the figures, the outer surface of the ring 10 is smooth. This aspect simplifies the understanding of the views by lightening the drawn features. In practice, the ring 10 can effectively be provided smooth externally, without limiting its ease of implementation on the valve 3, in the sense that, as explained below, the ring 10 is designed to be, independently of the rest of the control system, screwed first on the valve 3: it is therefore understood that this screwing operation can be performed by rotating the ring 10 on itself, in particular by the inside of this ring with the help of the pieces 12 if needed. As an alternative embodiment, not shown, the outer surface of the ring 10 is fluted to assist manual screwing. In this case, in addition to the aforementioned external splines, which are oriented in the direction of the X-X axis, one or more recessed notches may be provided outside the ring, in order to cooperate this or these notches hollow with a screwdriver type tool to participate in the disassembly of the ring if the latter was seized.
Par commodité, la suite de la description va être orientée de sorte que les termes « bas >> et « inférieur >> désignent une direction selon l'axe X-X, qui est orientée vers la vanne 3, tandis que les termes « haut >> et « supérieur >> désignent une direction selon l'axe X-X, tournée en sens opposé. Ainsi, les termes « haut >> et similaires correspondent à une direction tournée vers la partie haute sur toutes les figures, tandis que les termes « bas >> et similaires désignent une direction tournée vers la partie basse des figures.  For convenience, the remainder of the description will be oriented so that the terms "low" and "lower" denote a direction along the axis XX, which is oriented towards the valve 3, while the terms "high" and "superior" designate a direction along the axis XX, turned in the opposite direction. Thus, the terms "top" and the like correspond to a direction turned towards the upper part in all the figures, while the terms "bottom" and the like denote a direction turned towards the lower part of the figures.
Comme bien visible sur les figures 1 et 2, la bague 20 présente une forme globalement tubulaire à base circulaire, qui est centrée sur un axe qui, à l'état assemblé du système de commande, se retrouve confondu avec l'axe X-X de l'anneau 10. La bague 20 présente un diamètre extérieur égal ou légèrement inférieur au diamètre intérieur du corps principal de l'anneau 10, ce qui permet ainsi de loger au moins une partie axiale, voire sensiblement la totalité de la bague 20 à l'intérieur de l'anneau 10, comme expliqué plus loin. As clearly visible in FIGS. 1 and 2, the ring 20 has a globally tubular shape with a circular base, which is centered on an axis which, in the assembled state of the control system, is found to coincide with the axis XX of the ring 10. The ring 20 has an outside diameter equal to or slightly smaller than the inside diameter of the main body of the ring 10, which thus makes it possible to accommodate at least one axial portion, even substantially all of the ring 20 inside the ring 10, as explained below.
Le corps tubulaire de la bague 20 est traversé radialement par une pluralité de gorges 21 , en nombre identique aux pions 12 de l'anneau 10 et qui sont réparties de manière sensiblement régulière suivant la périphérie de la bague 20. Chacune des gorges 21 présente deux extrémités périphériques opposées, à savoir une extrémité 21A qui est fermée à la fois vers le haut et vers le bas, par des parois correspondantes de la bague 20, et une extrémité 21 B qui est fermée vers le haut mais qui est ouverte vers le bas, comme bien visible sur la figure 2. Ainsi, chaque gorge 21 est délimitée dans l'épaisseur du corps tubulaire de la bague 20, en débouchant radialement sur l'extérieur de part et d'autre du corps de la bague, et en ne débouchant axialement sur l'extérieur que par son extrémité 21 B, au niveau de laquelle elle se raccorde au chant d'extrémité inférieure de la bague.  The tubular body of the ring 20 is traversed radially by a plurality of grooves 21, the same number as the pins 12 of the ring 10 and which are distributed substantially uniformly around the periphery of the ring 20. Each of the grooves 21 has two opposed peripheral ends, namely an end 21A which is closed both upwardly and downwardly by corresponding walls of the ring 20, and an end 21B which is closed upward but which is open towards the bottom , As can be seen clearly in FIG. 2. Thus, each groove 21 is delimited in the thickness of the tubular body of the ring 20, opening radially on the outside on either side of the body of the ring, and not opening axially on the outside only by its end 21 B, at which it is connected to the lower end edge of the ring.
Chaque gorge 21 est dimensionnée pour recevoir l'un des pions 12 de l'anneau 10 : plus précisément, chaque pion 12 peut être axialement reçu à l'intérieur de l'extrémité 21 B d'une des gorges 21 , via le débouché vers le bas de cette extrémité 21 B, puis, moyennant un décalage angulaire relatif entre l'anneau 10 et la bague 20, chacun des pions 12 peut être guidé le long de la gorge, en passant de l'extrémité 21 B à l'extrémité 21 A de cette gorge. Ainsi, on comprend que les pions 12 de l'anneau 10 et les gorges 21 de la bague 20 sont conçus pour réaliser une liaison à baïonnette entre cet anneau et cette bague.  Each groove 21 is dimensioned to receive one of the pins 12 of the ring 10: more specifically, each pin 12 may be axially received inside the end 21 B of one of the grooves 21, via the outlet to the bottom of this end 21 B, then, with a relative angular offset between the ring 10 and the ring 20, each of the pins 12 can be guided along the groove, passing from the end 21 B to the end 21 A of this gorge. Thus, it is understood that the pins 12 of the ring 10 and the grooves 21 of the ring 20 are designed to make a bayonet connection between the ring and the ring.
Avantageusement, comme bien visible sur la figure 1 , l'extrémité 21 A de chaque gorge 21 est délimitée vers le bas par une empreinte en creux 22 complémentaire de la face inférieure des pions 12 : chacune de ces empreintes 22 est ainsi à même de recevoir et retenir, par complémentarité de formes, l'un des pions 12 lorsque ce pion se retrouve au niveau de l'extrémité 21 A de la gorge correspondante 21 .  Advantageously, as clearly visible in FIG. 1, the end 21 A of each groove 21 is delimited downwards by a cavity recess 22 complementary to the lower face of the pins 12: each of these indentations 22 is thus able to receive and retain, by complementarity of shapes, one of the pins 12 when this pin is found at the end 21 A of the corresponding groove 21.
Pour des raisons qui apparaîtront plus loin, on note que la bague 20 est, à son extrémité axiale inférieure, intérieurement pourvue d'une pluralité de crans 23, qui s'étendent radialement en saillie vers l'intérieur de la bague 20, depuis la face intérieure de son corps principal, et qui sont répartis de manière sensiblement régulière suivant la périphérie intérieure de cette bague. En pratique, chacun de ces crans 23 est situé, suivant la périphérie de la bague, entre deux gorges successives parmi les gorges 21. Avantageusement, notamment pour des raisons de résistance mécanique, les crans 23 sont reliés les uns aux autres par une couronne intérieure 24 de la bague 20.  For reasons which will appear later, it will be noted that the ring 20 is, at its lower axial end, internally provided with a plurality of notches 23, which extend radially projecting towards the inside of the ring 20, since the inner face of its main body, and which are distributed substantially uniformly around the inner periphery of this ring. In practice, each of these notches 23 is located, along the periphery of the ring, between two successive grooves among the grooves 21. Advantageously, particularly for reasons of mechanical strength, the notches 23 are connected to each other by an inner ring 24 of the ring 20.
Egalement pour des raisons qui apparaîtront plus loin, on note que la bague 20 est, à son extrémité axiale supérieure, pourvue intérieurement d'une pluralité de palettes de clipsage 25, qui s'étendent radialement en saillie vers l'intérieur de la bague 20, depuis la face intérieure de son corps principal, et qui sont réparties de manière sensiblement régulière suivant la périphérie de cette bague. En pratique, chacune de ces palettes 25 est située, suivant la périphérie de la bague 20, à l'aplomb axial d'une des gorges 21 , comme bien visible sur la figure 1 . Also for reasons which will appear later, it will be noted that the ring 20 is, at its upper axial end, internally provided with a plurality of pallets 25, which extend radially inwardly projecting from the ring 20, from the inner face of its main body, and which are distributed substantially uniformly around the periphery of this ring. In practice, each of these vanes 25 is located, along the periphery of the ring 20, in axial alignment with one of the grooves 21, as can be seen clearly in FIG.
La bague 20 est conçue pour être assemblée à demeure au boîtier 10. Plus précisément, comme bien visible sur les figures 2 à 4, ce boîtier 30 inclut à la fois une embase interne 31 , présentant une forme globalement tubulaire à base circulaire, centrée sur un axe destiné à se confondre avec l'axe X-X à l'état assemblé du système de commande, et un capot externe 32 qui est rapporté et fixé autour de l'embase 31 , typiquement par emboîtement, en définissant ainsi conjointement entre eux un volume fonctionnel à l'intérieur duquel sont agencés des composants appartenant au système de commande, qui vont être décrits ci-après. Ainsi, l'embase 31 est, à son extrémité axiale inférieure, extérieurement pourvue d'une bande de clipsage 33 qui est dimensionnée pour coopérer par coincement avec les palettes de clipsage 25 de la bague 20, et ainsi retenir vers le bas cette bague 20 vis-à-vis du boîtier 30. La figure 3 montre la bague 20 ainsi assemblée au boîtier 30. Pour arriver à cet assemblage, on comprend que la bague 20 est axialement rapprochée de l'embase 31 , en engageant cette embase à l'intérieur de la bague : par déformation élastique radiale des palettes 25 et de la bande 33, respectivement vers l'extérieur et vers l'intérieur, le rapprochement axial relatif entre la bague 20 et le boîtier 30 conduit à agencer la bande 33 axialement au-dessous des palettes 25, la bague 20 se trouvant alors clipsée à demeure au boîtier 30, comme représenté sur la figure 3.  The ring 20 is designed to be permanently joined to the housing 10. More precisely, as clearly visible in FIGS. 2 to 4, this housing 30 includes both an internal base 31, having a globally tubular shape with a circular base, centered on an axis intended to merge with the axis XX in the assembled state of the control system, and an outer cover 32 which is attached and fixed around the base 31, typically by interlocking, thus together defining a volume functional within which are arranged components belonging to the control system, which will be described below. Thus, the base 31 is, at its lower axial end, externally provided with a clipping band 33 which is dimensioned to cooperate by wedging with the clipping vanes 25 of the ring 20, and thus hold down this ring 20 30 shows the ring 20 thus assembled to the housing 30. To arrive at this assembly, it is understood that the ring 20 is axially close to the base 31, by engaging this base to the inside the ring: by radial elastic deformation of the pallets 25 and the band 33, respectively outwardly and inwardly, the relative axial approximation between the ring 20 and the housing 30 leads to arranging the strip 33 axially beyond- below the vanes 25, the ring 20 then being permanently clipped to the housing 30, as shown in FIG.
Afin de faciliter la déformation radiale vers l'intérieur de l'embase 31 , cette dernière est pourvue d'une pluralité de fentes 34, qui s'étendent suivant la direction de l'axe X-X et qui débouchent sur le chant d'extrémité inférieure de l'embase 31 . Selon l'invention, ces fentes 34 présentent un autre intérêt, dans le sens où elles sont positionnées et dimensionnées de manière à pouvoir y loger, en particulier au niveau des extrémités inférieures de ces fentes 34, les crans 23 de la bague 20, comme cela est représenté sur la figure 4. Ainsi, en comparant les figures 3 et 4, on comprend que, alors que la bague 20 est assemblée à demeure au boîtier 30, cette bague est déplaçable suivant l'axe X-X, par rapport à ce boîtier, entre deux configurations extrêmes, respectivement représentées sur les figures 3 et 4 : dans la configuration de la figure 3, l'extrémité axiale inférieure de la bague 20 est suffisamment éloignée, suivant l'axe X-X, de l'embase 31 pour que ses crans 23 n'interfèrent pas avec les fentes 34, tandis que, dans la configuration de la figure 4, la bague 20 occupe une position axiale plus haute que celle qu'elle occupe dans la configuration de la figure 3, de sorte que ses crans 23 sont en prise mécanique à l'intérieur des extrémités inférieures des fentes 34. Il en résulte que, dans la configuration de la figure 3, la bague 20 et le boîtier 30 sont librement rotatifs autour de l'axe X-X l'un par rapport à l'autre, tandis que, dans la configuration de la figure 4, la bague 20 est liée au boîtier 30 en rotation autour de l'axe X-X, par blocage de ses crans 23 dans les fentes 34. L'intérêt de cette disposition apparaîtra plus loin, lors de la description de l'installation du système de commande. In order to facilitate radial deformation towards the inside of the base 31, the latter is provided with a plurality of slots 34, which extend in the direction of the axis XX and which open on the lower end edge of the base 31. According to the invention, these slots 34 have another interest, in the sense that they are positioned and dimensioned so as to be able to accommodate, particularly at the lower ends of these slots 34, the notches 23 of the ring 20, as this is shown in FIG. 4. Thus, by comparing FIGS. 3 and 4, it is understood that, while the ring 20 is permanently joined to the housing 30, this ring is movable along the axis XX, with respect to this housing between two extreme configurations, respectively shown in Figures 3 and 4: in the configuration of Figure 3, the lower axial end of the ring 20 is sufficiently distant along the axis XX, the base 31 so that its notches 23 do not interfere with the slots 34, whereas in the configuration of FIG. 4, the ring 20 occupies an axial position higher than that which it occupies in the configuration of Figure 3, so that its notches 23 are mechanically engaged within the lower ends of the slots 34. As a result, in the configuration of Figure 3, the ring 20 and the housing 30 are freely rotatable around the axis XX relative to each other, while in the configuration of Figure 4, the ring 20 is connected to the housing 30 in rotation about the axis XX, by locking its notches 23 in the slots 34. The interest of this provision will appear later, when describing the installation of the control system.
Comme bien visible sur les figures 3 et 4, le système de commande comporte un élément thermostatique 40. Cet élément thermostatique inclut une coupelle 41 , qui contient une matière thermodilatable, telle qu'une cire expansible, et qui est agencée fixement à l'intérieur du capot 32, en étant supportée par l'embase 31 . L'élément thermostatique 40 comporte également un piston 42, qui est partiellement plongé à l'intérieur de la coupelle 41 et qui est déplaçable en translation sous l'action de la dilatation de la matière thermodilatable contenue dans cette coupelle. En service, le piston 42 se translate suivant un axe qui, à l'état assemblé du système de commande, est confondu avec l'axe X-X.  As can be clearly seen in FIGS. 3 and 4, the control system comprises a thermostatic element 40. This thermostatic element includes a cup 41, which contains a heat-expandable material, such as an expandable wax, and which is fixedly arranged inside. of the cover 32, being supported by the base 31. The thermostatic element 40 also comprises a piston 42, which is partially immersed inside the cup 41 and which is displaceable in translation under the action of the expansion of the thermodilatable material contained in this cup. In use, the piston 42 translates along an axis which, in the assembled state of the control system, coincides with the axis X-X.
Afin de chauffer la coupelle 41 , le système de commande inclut une résistance électrique 50, notamment une résistance dite PTC. Cette résistance 50 est alimentée par des fils électriques 51 qui courent jusqu'à l'extérieur du boîtier 30 afin d'être connectés à une source d'alimentation électrique non représentée, notamment en s'insinuant entre l'embase 31 et le capot 32, comme bien visible dans la partie gauche des figures 3 et 4. Lorsque la résistance électrique 50 est alimentée, la chaleur qu'elle dégage est transmise à la matière thermodilatable, via la coupelle 41 , ce qui provoque la dilatation de cette matière et, par là, le déploiement du piston 42 à l'extérieur de la coupelle 41 .  In order to heat the cup 41, the control system includes an electrical resistance 50, in particular a so-called PTC resistor. This resistor 50 is powered by electrical wires 51 which run to the outside of the housing 30 in order to be connected to a not shown electrical power source, in particular by creeping between the base 31 and the cover 32. , as clearly visible in the left-hand part of FIGS. 3 and 4. When the electrical resistance 50 is energized, the heat which it releases is transmitted to the thermally-expandable material, via the cup 41, which causes the expansion of this material and, thereby, the deployment of the piston 42 on the outside of the cup 41.
A son extrémité opposée à la coupelle 41 , le piston 42 s'appuie axialement contre un boisseau supérieur 60, qui est monté à l'intérieur du capot 32 de manière axialement mobile et qui est lié cinématiquement à un boisseau inférieur 61 agencé pour l'essentiel à l'intérieur de l'embase 31 . Les boisseaux 60 et 61 sont ainsi liés en translation au piston 42 de sorte que, lorsque le piston se déploie par rapport à la coupelle 41 , ces boisseaux 60 et 61 sont translatés axialement vers le haut, en comprimant un ressort de rappel 63 interposé entre le boisseau 60 et le capot 32.  At its end opposite the cup 41, the piston 42 is supported axially against an upper plug 60, which is mounted inside the cover 32 axially movably and which is kinematically connected to a lower plug 61 arranged for the essential inside the base 31. The bushels 60 and 61 are thus linked in translation to the piston 42 so that, when the piston deploys with respect to the cup 41, these plugs 60 and 61 are translated axially upwards, compressing a return spring 63 interposed between bushel 60 and hood 32.
On va maintenant décrire le montage du système de commande décrit jusqu'ici, sur la vanne 3, et cela en regard des figures 5 à 7.  We will now describe the mounting of the control system described so far, the valve 3, and that with reference to Figures 5 to 7.
Dans une première étape, illustrée par la figure 5, on dispose, d'une part, du boîtier 30, à l'intérieur duquel sont agencés l'élément thermostatique 40, la résistance électrique 50, les boisseaux 60 et 61 et le ressort 63, et auquel est assemblé la bague 20, comme expliqué plus haut. Plus précisément, sur la figure 5, la bague 20 est assemblée à l'embase 31 , en occupant sa configuration de la figure 4. D'autre part, on dispose de l'anneau 10, non encore fixé à la bague 20. Plus précisément, cet anneau 10 est, seul, vissé sur la vanne 3. In a first step, illustrated in FIG. 5, there is, on the one hand, the housing 30 inside which the thermostatic element 40, the electrical resistance 50, the bushings 60 and 61 and the spring 63 are arranged. , and to which is assembled the ring 20, as explained above. More specifically, in Figure 5, the ring 20 is assembled to the base 31, occupying its configuration of Figure 4. On the other hand, it has the ring 10, not yet attached to the ring 20. More precisely, this ring 10 is alone screwed on the valve 3.
L'installateur se saisit alors du capot 32, avantageusement d'une seule main, et positionne le boîtier 30 au-dessus de l'anneau 10, de manière sensiblement coaxiale à ce dernier, comme illustré sur la figure 5. Comme indiqué par la flèche F1 sur la figure 5, l'installateur introduit alors axialement la bague 20 à l'intérieur de l'anneau 10, toujours en ne manipulant que le boîtier 30. Le chant d'extrémité inférieure de la bague 20 est ainsi amené à se rapprocher axialement de la face supérieure des pions 12 de l'anneau 10. Ce faisant, l'extrémité supérieure du poussoir 5 vient interférer avec les composants centraux agencés à l'intérieur du boîtier 30, plus précisément avec une entretoise 64 solidarisée à la région centrale de la face inférieure du boisseau 61 : par appui axial pressant vers le bas, cette entretoise 64 agit sur le poussoir 5, en le déplaçant axialement vers le bas, jusqu'à plaquer le clapet 4 contre le débouché de la conduite 2 dans le collecteur 1 , comme représenté sur la figure 6. Pour ce faire, on comprend que, dans la mesure où la raideur du ressort 63 est plus grande que celle du ressort 6, l'installateur doit fournir un effort axial nécessaire pour vaincre la résistance du ressort 6, qui se retrouve alors davantage comprimé, comme bien visible par comparaison des figures 5 et 6. Bien entendu, une fois que le poussoir 5 est ainsi poussé à rencontre de son ressort de rappel 6 jusqu'à plaquer le clapet 4 contre le débouché de la conduite 2 dans le collecteur 1 , un effort axial additionnel, vers le bas, appliqué par l'installateur sur le capot 32 conduit à comprimer le ressort 63.  The installer then grasps the cover 32, preferably with one hand, and positions the housing 30 above the ring 10, substantially coaxially with the latter, as shown in Figure 5. As indicated by the arrow F1 in FIG. 5, the installer then axially introduces the ring 20 into the inside of the ring 10, again by handling only the casing 30. The lower end edge of the ring 20 is thus brought to bear. bring axially to the upper face of the pins 12 of the ring 10. In doing so, the upper end of the pusher 5 interferes with the central components arranged inside the housing 30, more specifically with a spacer 64 secured to the region central of the lower face of the plug 61: by axial support pressing downwards, this spacer 64 acts on the pusher 5, moving it axially downward, until the valve 4 against the outlet of the pipe 2 into the manifold 1, as shown in Figure 6. To do this, it is understood that, to the extent that the stiffness of the spring 63 is greater than that of the spring 6, the installer must provide an axial force necessary to overcome the resistance of the spring 6, which is then more compressed, as can be seen by comparing Figures 5 and 6. Of course, once the pusher 5 is thus pushed against its return spring 6 to press the valve 4 against the outlet of the pipe 2 in the manifold 1, an additional axial force, downward, applied by the installer on the cover 32 leads to compress the spring 63.
Une fois que le chant d'extrémité inférieure de la bague 20 est amené au contact de la face supérieure des pions 12, l'entraînement du boîtier 30, par l'installateur, vers le bas est stoppé tant que l'installateur n'amène pas les extrémités 21 B des gorges 21 axialement en regard des pions 12 : pour ce faire, l'installateur entraîne le boîtier 30 en rotation sur lui-même autour de l'axe X-X, avantageusement toujours de la seule main grâce à laquelle il tient ce boîtier, comme indiqué par la flèche F2 sur la figure 6. Les pions 12 peuvent alors s'engager dans les gorges 21 , l'installateur ayant à enchaîner un premier mouvement de descente axiale du boîtier 30, puis un mouvement d'entraînement en rotation, ici dans le sens horaire, de ce boîtier, pour venir loger les pions 12 au niveau des extrémités 21 A des gorges 21 . Autrement dit, l'installateur effectue des mouvements typiques d'une fixation à baïonnette. Le système de commande se retrouve alors dans l'état illustré à la figure 6. Puis, l'installateur lâche le boîtier 30, c'est-à-dire qu'il relâche l'effort axial vers le bas qu'il devait maintenir jusqu'alors à rencontre des ressorts de rappel 6 et 63. Eu égard au fait que le ressort 63 est plus raide que le ressort 6, ce ressort 63 se détend alors partiellement, tandis que la compression du ressort 6 est sensiblement inchangée : ce faisant, le ressort 63 repousse alors le capot 32 vers le haut, entraînant ainsi tout le boîtier 30 vers le haut par rapport aux boisseaux 60 et 61 et à l'entretoise 64. Dans le même temps, la bague 20 est empêchée de suivre le mouvement axial vers le haut du boîtier 30, eu égard à la présence des pions 12 dans les extrémités 21 A des gorges 21 . Avantageusement, les pions 12 se trouvent d'ailleurs alors verrouillés dans les empreintes en creux 22. La bague 20 étant ainsi bloquée axialement par rapport au boîtier 30, elle passe alors de sa configuration de la figure 4 à sa configuration de la figure 3, conduisant ainsi au désengagement des crans 23 vis-à-vis des fentes 34. Le système de commande se retrouve alors dans l'état montré à la figure 7, c'est-à-dire que ce système de commande est prêt au service. Dans cet état assemblé, on remarque que la bague 20 est avantageusement logée sensiblement en totalité à l'intérieur de l'anneau 10, ce qui confère au système de commande une esthétique extérieure particulièrement avenante, tout en protégeant la bague. Once the lower end edge of the ring 20 is brought into contact with the upper face of the pins 12, the drive of the housing 30, by the installer, down is stopped until the installer leads. not the ends 21 B of the grooves 21 axially facing the pins 12: to do this, the installer drives the housing 30 in rotation about itself about the axis XX, preferably always with the only hand through which it holds this housing, as indicated by the arrow F2 in Figure 6. The pins 12 can then engage in the grooves 21, the installer having to chain a first downward movement of the housing 30, and a drive movement in rotation, here in the clockwise direction, of this housing, to accommodate the pins 12 at the ends 21 A of the grooves 21. In other words, the installer performs typical movements of a bayonet attachment. The control system is then in the state shown in Figure 6. Then, the installer releases the housing 30, that is to say that it releases the axial force downwards that it had to maintain until then against the return springs 6 and 63. In view of the fact that the spring 63 is stiffer than the spring 6, this spring 63 then partially relaxes, while the compression of the spring 6 is substantially unchanged: in doing so, the spring 63 then pushes the cover 32 upwards, thus causing the entire housing 30 upwardly relative to the plugs 60 and 61 and the spacer 64. At the same time, the ring 20 is prevented from following the upward axial movement of the housing 30, in view of the presence of the pins 12 in the ends 21 A of the grooves 21. Advantageously, the pins 12 are also locked in the indentations 22. The ring 20 is thus locked axially relative to the housing 30, it then passes from its configuration of Figure 4 to its configuration of Figure 3, thus leading to the disengagement of the notches 23 vis-à-vis the slots 34. The control system is then found in the state shown in Figure 7, that is to say that this control system is ready for service. In this assembled state, it is noted that the ring 20 is advantageously housed substantially entirely within the ring 10, which gives the control system a particularly attractive exterior aesthetic, while protecting the ring.
La figure 8 illustre un état de service subséquent potentiel : l'élément thermostatique 40 est échauffé par la résistance 50, ce qui entraîne le déploiement de son piston 42 et, par là, l'entraînement axial vers le haut des boisseaux 60 et 61 et de l'entretoise 64. Par décompression du ressort de rappel 6, le poussoir 5 est entraîné vers le haut, en ouvrant alors le débouché de la conduite 2 dans le collecteur 1 , ce débouché étant jusqu'alors obturé par le clapet 4 comme montré sur la figure 7. Lorsque le chauffage de l'élément thermostatique 40 est ensuite arrêté, le ressort 63 rappelle le piston 42 vers la coupelle 41 par l'intermédiaire du boisseau 60, tandis que le ressort de rappel 6 repousse le poussoir vers le bas.  FIG. 8 illustrates a potential subsequent service state: the thermostatic element 40 is heated by the resistor 50, which results in the deployment of its piston 42 and thereby the axial upward drive of the bushings 60 and 61 and of the spacer 64. By decompression of the return spring 6, the pusher 5 is driven upwards, then opening the outlet of the pipe 2 in the manifold 1, this outlet being hitherto closed by the valve 4 as shown in Figure 7. When the heating of the thermostatic element 40 is then stopped, the spring 63 recalls the piston 42 to the cup 41 through the plug 60, while the return spring 6 pushes the pusher down .
Dans l'état de service représenté sur les figures 7 et 8, on comprend que, dans la mesure où la bague 20 est dans sa configuration de la figure 3, le boîtier 30 est libre de tourner sur lui-même autour de l'axe X-X vis-à-vis de la bague 20. En particulier, le capot 32 peut être orienté angulairement à la discrétion de l'installateur, en particulier pour positionner au mieux les fils 51 , notamment en tenant compte de l'environnement d'implantation du système de commande, comme expliqué en détail dans la partie introductive de ce document.  In the state of service shown in FIGS. 7 and 8, it will be understood that, insofar as the ring 20 is in its configuration of FIG. 3, the housing 30 is free to turn about itself about the axis XX in particular with the ring 20. In particular, the cover 32 can be angularly oriented at the discretion of the installer, in particular to position the son 51 best, especially taking into account the location environment of the control system, as explained in detail in the introductory part of this document.
Si besoin, le système de commande peut bien entendu être démonté, et ce tout aussi facilement qu'il a été monté. Pour ce faire, l'installateur se saisit, avantageusement d'une seule main, du boîtier 30 et exerce un effort axial vers le bas, tout en imprimant à ce boîtier un mouvement de rotation, horaire ou anti-horaire, autour de l'axe X-X, jusqu'à mettre en prise les crans 23 dans les fentes 34 : autrement dit, moyennant une compression du ressort de rappel 63, l'installateur passe la bague 20 de sa configuration de la figure 3 à sa configuration de la figure 4. Puis, tout en maintenant l'effort axial comprimant le ressort 63, l'installateur imprime au boîtier 30 une rotation autour de l'axe X-X, dans le cas présent dans un sens anti-horaire : la bague 20 étant alors liée en rotation au boîtier 30, ce mouvement de rotation permet de déplacer les gorges 21 vis-à- vis des pions 12, de façon à faire passer ces derniers des extrémités 21 A des gorges à leur extrémité 21 B. En relâchant alors tout effort axial sur le boîtier 30, l'installateur peut désengager le boîtier 30 et la bague 20 assemblé à ce boîtier vis-à-vis de l'anneau 10, avec des décompressions des ressorts 63 et 6. Bien entendu, l'anneau 10 reste en place sur la vanne 3. If necessary, the control system can of course be dismantled, and this just as easily as it was mounted. To do this, the installer seizes, advantageously with one hand, the housing 30 and exerts an axial force down, while printing at this time. housing a rotational movement, clockwise or anti-clockwise, around the axis XX, until the notches 23 are engaged in the slots 34: in other words, by means of a compression of the return spring 63, the installer passes the 20 of its configuration of Figure 3 to its configuration of Figure 4. Then, while maintaining the axial force compressing the spring 63, the installer prints the housing 30 a rotation about the axis XX, in the case present in a counterclockwise direction: the ring 20 then being rotatably connected to the housing 30, this rotational movement makes it possible to move the grooves 21 vis-à-vis the pins 12, so as to pass them 21A ends B. By then releasing any axial force on the housing 30, the installer can disengage the housing 30 and the ring 20 assembled to this housing vis-à-vis the ring 10, with decompressions of the springs 63 and 6. Of course, the ring 10 remains in place on the valve 3.
Divers aménagements et variantes au système de commande décrit jusqu'ici sont par ailleurs envisageables. A titre d'exemples :  Various arrangements and variants of the control system described so far are also possible. As examples:
- d'autres formes de réalisation que les crans 23 et les fentes 34 peuvent être envisagées en ce qui concerne des reliefs complémentaires de, respectivement, la bague 20 et le boîtier 30, afin que ces reliefs viennent en prise l'un avec l'autre via un rapprochement axial entre la bague et le boîtier, de façon à alors bloquer en rotation relative la bague et le boîtier dans une configuration similaire à celle montrée à la figure 4, étant entendu que, comme pour les crans 23 et les fentes 34, les reliefs précités peuvent être désengagés de manière réversible, via un éloignement axial entre la bague et le boîtier, de manière à désaccoupler en rotation ces deux pièces dans une configuration similaire à la configuration illustrée sur la figure 3 ; par exemple, la surface supérieure de la couronne 24 de la bague 20 et le chant d'extrémité inférieure de l'embase 31 peuvent respectivement présenter des profils en creux et en bosses complémentaires ;  - Other embodiments that the notches 23 and the slots 34 may be envisaged with regard to complementary reliefs of, respectively, the ring 20 and the housing 30, so that these reliefs engage one with the other via an axial approximation between the ring and the housing, so as to lock in relative rotation the ring and the housing in a configuration similar to that shown in Figure 4, it being understood that, as for the notches 23 and the slots 34 , the aforementioned reliefs can be reversibly disengaged, via an axial distance between the ring and the housing, so as to uncouple in rotation these two parts in a configuration similar to the configuration shown in Figure 3; for example, the upper surface of the ring 24 of the ring 20 and the lower end edge of the base 31 may respectively have recessed profiles and complementary bumps;
- de même, d'autres formes d'assemblage, que le clipsage entre les palettes 25 et la bande 33, peuvent être envisagées pour monter à demeure la bague 20 sur le boîtier 30, plus précisément autour de l'embase 31 ; et/ou  - Similarly, other forms of assembly, that the clipping between the pallets 25 and the band 33, may be envisaged to mount the ring permanently on the housing 30, more precisely around the base 31; and or
- de la même façon, la forme de réalisation concernant les pions 12 et les gorges 21 n'est pas limitative de la liaison de fixation à baïonnette entre l'anneau 10 et la bague in the same way, the embodiment concerning the pins 12 and the grooves 21 is not limited to the bayonet fixing connection between the ring 10 and the ring
20 alors que cette dernière est assemblée au boîtier 10 ; plus généralement, tout type de fixation rapide peut être envisagé entre l'anneau et la bague du moment que, sous l'action des moyens de fixation correspondants, la bague 20 se trouve retenue axialement vers le bas par rapport au boîtier 30, pour permettre son passage de sa configuration de montage-démontage de la figure 4 à sa configuration de service de la figure 3. 20 while the latter is assembled to the housing 10; more generally, any type of quick fastening can be envisaged between the ring and the ring as long as, under the action of the corresponding fastening means, the ring 20 is held axially downward relative to the housing 30, to allow its passage from its assembly-disassembly configuration of Figure 4 to its service configuration of Figure 3.

Claims

REVENDICATIONS
1 . - Système de commande d'une vanne (3) incluant un poussoir (5) soumis à l'effort d'un ressort de rappel (6),  1. - Control system of a valve (3) including a pusher (5) subjected to the force of a return spring (6),
ce système comportant un boîtier (30) dans lequel est agencé un élément thermostatique (40) contenant une matière thermodilatable et incluant une partie fixe (41 ), qui est supportée fixement par le boîtier, et une partie mobile (42) qui est déplaçable en translation suivant un axe (X-X) par rapport à la partie fixe sous l'action de la dilatation de la matière thermodilatable, le poussoir (5) de la vanne (3) étant actionné à rencontre de son ressort de rappel (6) par un déplacement axial de la partie mobile lorsque le boîtier est monté sur la vanne par l'intermédiaire d'un anneau (10) du système de commande, cet anneau étant adapté pour être rapporté sur la vanne indépendamment du boîtier, caractérisé en ce que le système de commande comporte en outre une bague (20) de liaison mécanique entre le boîtier (30) et l'anneau (10), this system comprising a housing (30) in which a thermostatic element (40) containing a thermally-expandable material and including a fixed part (41), which is fixedly supported by the housing, and a movable part (42) which is displaceable in translation along an axis (XX) relative to the fixed part under the action of the expansion of the thermally expandable material, the pusher (5) of the valve (3) being actuated against its return spring (6) by a axial displacement of the moving part when the housing is mounted on the valve via a ring (10) of the control system, this ring being adapted to be attached to the valve independently of the housing, characterized in that the system control device further comprises a ring (20) for mechanical connection between the housing (30) and the ring (10),
laquelle bague est adaptée pour être fixée à l'anneau de manière réversible et which ring is adapted to be fixed to the ring reversibly and
laquelle bague est assemblée à demeure au boîtier de manière déplaçable suivant l'axe (X-X) entre : which ring is permanently joined to the housing in a displaceable manner along the axis (X-X) between:
- une configuration de montage-démontage, dans laquelle, que la bague soit dégagée de l'anneau ou bien fixée à cet anneau, la bague est liée au boîtier en rotation autour de l'axe, et  an assembly-disassembly configuration, in which, whether the ring is disengaged from the ring or fixed to this ring, the ring is connected to the casing in rotation about the axis, and
- une configuration de service, dans laquelle la bague, alors qu'elle est fixée à l'anneau, et le boîtier sont libres de tourner autour de l'axe l'un par rapport à l'autre. - A service configuration, wherein the ring, while it is attached to the ring, and the housing are free to rotate about the axis relative to each other.
2. - Système de commande suivant la revendication 1 , caractérisé en ce qu'il comporte en outre un ressort (63) de rappel de la partie mobile (43) vers la partie fixe (41 ) de l'élément thermostatique (40), lequel ressort de rappel présente une raideur supérieure à celle du ressort de rappel (6) de la vanne (3) et est adapté, lors de la fixation de la bague (20) à l'anneau (10) alors que cette bague est assemblée au boîtier (30), pour se comprimer de manière que, lors de son relâchement subséquent, il commande le passage de la bague de sa configuration de montage-démontage à sa configuration de service.  2. - Control system according to claim 1, characterized in that it further comprises a spring (63) for returning the movable part (43) to the fixed part (41) of the thermostatic element (40), which return spring has a stiffness greater than that of the return spring (6) of the valve (3) and is adapted, when fixing the ring (20) to the ring (10) while this ring is assembled to the housing (30), to compress so that upon subsequent release it controls the passage of the ring from its mounting-disassembly configuration to its service configuration.
3.- Système de commande suivant l'une quelconque des revendications précédentes, caractérisé en ce que, dans la configuration de montage-démontage, la bague (20) coopère par complémentarité de formes avec une embase (31 ) appartenant au boîtier (30), agencée coaxialement à l'intérieur de la bague.  3.- control system according to any one of the preceding claims, characterized in that, in the mounting-disassembly configuration, the ring (20) cooperates in complementary form with a base (31) belonging to the housing (30). , arranged coaxially inside the ring.
4.- Système de commande suivant la revendication 3, caractérisé en ce que la bague (20) est pourvue, à son extrémité axiale tournée vers l'anneau (10), d'au moins un relief (23) conçu pour venir axialement en prise avec un relief complémentaire (34), délimité par l'embase (31 ) du boîtier (30), lors du passage de la configuration de service à la configuration de montage-démontage. 4. Control system according to claim 3, characterized in that the ring (20) is provided at its axial end facing the ring (10), at least one relief (23) designed to come axially in taken with a complementary relief (34), defined by the base (31) of the housing (30), during the transition from the service configuration to the assembly-disassembly configuration.
5.- Système de commande suivant l'une des revendications 3 ou 4, caractérisé en ce que la bague (20) est assemblée au boîtier (30) par clipsage sur l'embase (31 ).  5. Control system according to one of claims 3 or 4, characterized in that the ring (20) is assembled to the housing (30) by clipping on the base (31).
6.- Système de commande suivant l'une quelconque des revendications précédentes, caractérisé en ce que la bague (20) est dimensionnée pour être logée sensiblement en totalité à l'intérieur de l'anneau (10).  6. Control system according to any one of the preceding claims, characterized in that the ring (20) is dimensioned to be housed substantially entirely within the ring (10).
7. - Système de commande suivant l'une quelconques des revendications précédentes, caractérisé en ce que la bague (20) est adaptée pour être fixée à l'anneau (10) par des moyens (12, 21 ) de liaison à baïonnette centrée sur l'axe (X-X).  7. - Control system according to any one of the preceding claims, characterized in that the ring (20) is adapted to be fixed to the ring (10) by means (12, 21) of bayonet connection centered on the axis (XX).
8. - Système de commande suivant la revendication 7, caractérisé en ce que les moyens de liaison à baïonnette comportent des pions (12), qui sont solidaires de l'anneau (10) et qui s'étendent radialement en saillie vers l'intérieur de l'anneau, et des gorges (21 ) de réception des pions, qui sont délimitées par la bague (20) de manière que les pions s'y engagent lorsque l'anneau et la bague sont rapprochés axialement l'un de l'autre, puis s'y verrouillent lorsque l'anneau et la bague sont entraînés en rotation relative autour de l'axe (X-X).  8. - control system according to claim 7, characterized in that the bayonet connection means comprise pins (12), which are integral with the ring (10) and which extend radially projecting inwards of the ring, and grooves (21) for receiving the pins, which are delimited by the ring (20) so that the pins engage in it when the ring and the ring are brought axially close to one of the other, and then lock when the ring and the ring are driven in relative rotation about the axis (XX).
9. - Système de commande suivant l'une quelconques des revendications précédentes, caractérisé en ce que l'anneau (10) est adapté pour être vissé sur la vanne (3).  9. - Control system according to any one of the preceding claims, characterized in that the ring (10) is adapted to be screwed on the valve (3).
10. - Installation de chauffage d'un bâtiment, comportant au moins un collecteur (1 ) de circulation de fluide, pourvu, à la fois, d'une vanne (3) incluant un poussoir (5) soumis à l'effort d'un ressort de rappel (6), et d'un système de commande de cette vanne, conforme à l'une quelconque des revendications précédentes.  10. - Installation for heating a building, comprising at least one fluid circulation manifold (1) provided, at the same time, with a valve (3) including a pusher (5) subjected to the stress of a return spring (6), and a control system of this valve, according to any one of the preceding claims.
PCT/EP2011/073402 2010-12-20 2011-12-20 System for controlling a valve, and equipment for heating a building comprising a collector provided with such a valve WO2012084942A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1060827 2010-12-20
FR1060827A FR2969247B1 (en) 2010-12-20 2010-12-20 VALVE CONTROL SYSTEM, AND A BUILDING HEATING SYSTEM COMPRISING A MANIFOLD PROVIDED WITH SUCH VALVE

Publications (1)

Publication Number Publication Date
WO2012084942A1 true WO2012084942A1 (en) 2012-06-28

Family

ID=44461882

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2011/073402 WO2012084942A1 (en) 2010-12-20 2011-12-20 System for controlling a valve, and equipment for heating a building comprising a collector provided with such a valve

Country Status (2)

Country Link
FR (1) FR2969247B1 (en)
WO (1) WO2012084942A1 (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2537033A1 (en) 1975-08-20 1977-02-24 Oventrop Sohn Kg F W Thermostat for heater valve flow control - has spring biased expanding plunger and stem moving valve disc towards seat
DE8020318U1 (en) 1980-07-29 1980-10-30 Polytronic Kunststoff-Elektro Gmbh, 4796 Salzkotten ADJUSTMENT DEVICE FOR THE SETPOINT OF A THERMOSTAT VALVE
US4848389A (en) 1988-05-16 1989-07-18 Pirkle Fred L Freeze protection device
DE8433325U1 (en) * 1984-11-14 1992-04-23 Wella Ag, 6100 Darmstadt, De
EP0903525A2 (en) * 1997-09-17 1999-03-24 MACRIFIN S.p.A. Control device for thermostatic valves
DE20001605U1 (en) * 2000-01-29 2000-05-11 Conecterm S A R L Thermostatic valve

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2537033A1 (en) 1975-08-20 1977-02-24 Oventrop Sohn Kg F W Thermostat for heater valve flow control - has spring biased expanding plunger and stem moving valve disc towards seat
DE8020318U1 (en) 1980-07-29 1980-10-30 Polytronic Kunststoff-Elektro Gmbh, 4796 Salzkotten ADJUSTMENT DEVICE FOR THE SETPOINT OF A THERMOSTAT VALVE
DE8433325U1 (en) * 1984-11-14 1992-04-23 Wella Ag, 6100 Darmstadt, De
US4848389A (en) 1988-05-16 1989-07-18 Pirkle Fred L Freeze protection device
EP0903525A2 (en) * 1997-09-17 1999-03-24 MACRIFIN S.p.A. Control device for thermostatic valves
DE20001605U1 (en) * 2000-01-29 2000-05-11 Conecterm S A R L Thermostatic valve

Also Published As

Publication number Publication date
FR2969247A1 (en) 2012-06-22
FR2969247B1 (en) 2014-03-07

Similar Documents

Publication Publication Date Title
EP0691096B1 (en) A locking/unlocking device with clamps for a lid on a vessel
EP0488844A1 (en) Connection device, especially for assembling a hose to a car heat exchanger
WO1996014526A1 (en) Lock-up clutch for a hydrokinetic coupling device, in particular for motor vehicles, and method for mounting same
EP1547497B1 (en) Domestic pressure cooking appliance with improved locking device
WO2016046340A2 (en) Thermostatic device for controlling the flow of a fluid, and thermostatic valve comprising such a device
EP0790146B1 (en) Vehicle lighter with a protection device
EP0715372B1 (en) Socket for an electrical connection with protected contacts
EP0220982B1 (en) Clutch release mechanism assembly, especially for an automotive vehicle
FR2716519A1 (en) Improvement to thermostats with integrated housing.
WO2012084942A1 (en) System for controlling a valve, and equipment for heating a building comprising a collector provided with such a valve
FR2546999A1 (en) Clutch mechanism with a component fitted onto the pressure plate
EP0915537B1 (en) Electrical flush mount apparatus with clamping-jaws for attachment
FR2776325A1 (en) IMPROVED AXIAL RELEASE LOCK FOR A MOTOR VEHICLE LOCK MECHANISM
EP0677153B1 (en) Pull-type hydraulic motor vehicle clutch
WO2010112752A1 (en) Thermostatic valve and method for manufacturing same
WO2014009287A1 (en) Thermostatic valve with heater capsule
EP0511089B1 (en) Cigar lighter, especially for motor vehicles
EP0495719A1 (en) Cigarette lighter, especially for motor vehicles
FR2673733A1 (en) GEAR LEVER FOR CONTROLLING A CHANGE DEVICE, IN PARTICULAR FOR A MOTOR VEHICLE.
EP0360650B1 (en) Clutch release mechanism, in particular for motor vehicles
EP0068491A2 (en) Hand-held hair dryer
EP0674753B1 (en) Clutch unit with a cover secured by a clip arrangement to the flywheel
FR3024518A1 (en) THERMOSTATIC SLEEVE VALVE
FR2511738A1 (en) Detachable vacuum actuator cylinder - has two piece housing with separate housings for actuator rod and piston
WO2019115749A1 (en) Heating cartridge for a thermostatic member, and thermostatic valve comprising such a cartridge

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 11802717

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 11802717

Country of ref document: EP

Kind code of ref document: A1