EP3538722B1 - Overflow pool with movable bottom - Google Patents

Description

The present invention relates to the field of swimming pools, installed above ground or buried, and in particular swimming pools with a movable bottom. The invention relates more particularly to a swimming pool with a movable bottom and an overflow.

We know first of all from the state of the art infinity pools, which are appreciated for their aesthetics and which are characterized by one or more sides of the pool provided overflowing under the action of a pump system: in in such a swimming pool, the water level is thus substantially constant whatever the bathing conditions (such as the number of bathers, the volume of overflowing water) or external conditions such as bad weather.

Such swimming pools thus require, and compared to a non-overflowing swimming pool, a water recirculation circuit which comprises one or more secondary reservoirs (distinct from the overflow bathing volume). The function of this or these secondary reservoirs is to collect the overflow water, and to serve as a buffer when the volume of water in the swimming pool varies, for example due to the presence of a bather in the bathing volume of the swimming pool in overflow, or due to additional water such as rainwater. The recirculation circuit ensures a water flow which keeps the water level of the swimming pool constant, continuously overflowing.

According to the findings of the inventor, such infinity pools thus have the first drawback of requiring a large construction space, not only because of the main construction, namely the reservoir defining the overflow bathing volume, but also in because of the secondary reservoirs, with a buffer function, which occupy additional space in this construction.

Due to the continuous overflow of the swimming pool which promotes heat exchange and evaporation, infinity pools still have the major drawback of cooling the pool water, which often requires the addition of a heating system. for example with heat pump and increases operating costs.

Swimming pools are also known with a movable floor, for example in order to improve safety for young children by making it possible to adjust the depth. of the basin. The mobile platform also allows, when the pool is not in use, to be able to use the surface of the platform as a floor.

Thus, in the state of the art, there exist different types of movable pool floor making it possible to vary the depth of the pool basin, or even to use the movable floor as a flat floor surface.

Generally, the movable bottom is in the form of a platform which can go from a low, submerged position, in which the movable bottom constitutes the bottom of the swimming pool, to a high position, in the open air, in which the movable bottom forms a floor.

Such a movable bottom swimming pool is known from the document WO 2011/077377 . According to a first embodiment of this document, illustrated on figure 2 , the platform comprises a platform intended to be stepped on and an on-board ballast intended to be filled with water or air depending on the position that is to be given to the mobile floor. By changing the buoyancy of the platform, it is possible to activate the platform when descending or ascending. Other modes of actuation of the platform are known from other prior art, such as, for example, jacks, or even cable and pulley systems.

Under the action of the platform, the water moves on either side of said platform, from above to below during the ascent, and from below to above during the descent. Due to the impermeability of the platform, it is necessary to leave a large gap between the peripheral edge of the mobile platform and the side walls in order to allow this water circulation. The main drawback of this embodiment is that it leaves a relatively large space between the peripheral edge of the platform and the side walls, which is not acceptable in terms of safety because of the risk of pinching.

There is also a risk of introducing dirt and / or an object through the spaces between the walls of the swimming pool and the platform, the objects then being difficult to recover.

This space is also detrimental when the platform is in the high position, above the surface of the water in that the platform does not allow optimal insulation of the basin from the external environment, the heat escaping through this. space.

According to a second embodiment of this document, illustrated on figure 8 of the document WO 2011/077377 , the platform is permeable, in particular perforated, so as to allow water to circulate through the platform during the ascent and descent.

However, such an embodiment does not allow the swimming pool to be thermally insulated, or even to constitute a screen against evaporation, when the platform is in the high position. This has the consequence on the one hand of increasing the energy consumption allocated for heating and, where appropriate, the energy allocated to dehumidify the environment of the building in which the swimming pool is located.

We still know of the document FR 1350562 of the present applicant a swimming pool with a movable bottom which comprises a water circulation duct, peripheral and external to the bathing volume. This peripheral circuit comprises an upper mouth and a lower mouth communicating with the bathing volume.

During upward platform movements, this circuit allows water to circulate from above to the underside of the platform, the water entering through the upper mouth into the circuit, exiting through the lower mouth, under the action of platform thrust. Conversely, and during a downward movement, the circuit allows the circulation of water from below to the top of the platform, the water entering through the lower mouth into the circuit, exiting through the upper mouth, under the pushing action of the platform.

Such a circuit advantageously makes it possible to use a platform with an impermeable wall, which makes it possible in particular to obtain good thermal insulation performance when the platform is in the high position, above the water, while limiting the size of the peripheral play between the platform and the side walls of the bathing volume, which creates a risk of pinching.

Advantageously, and in such a design of the swimming pool, in the high position, the mobile platform extends the surface of the floor around the swimming pool, providing a perfectly flat floor, advantageously without discontinuity between the surface of the mobile platform then in high position and the surface of the floor peripheral to the swimming pool.

According to the findings of the inventor, a swimming pool with movable bottom platform according to the design of the document FR 1350562 however, is not compatible with an infinity pool design.

According to the tests implemented by the inventor, in a swimming pool as described in the document FR 1350562 for example, when the platform moves up or down, there is a slight increase in the surface water level. FR 3 001 246 shows a swimming pool with a movable bottom according to the preamble of claim 1. WO 2011/030043 shows an infinity pool.

The aim of the present invention is to overcome the aforementioned drawbacks by providing a swimming pool with a movable bottom and overflow which makes it possible, on the one hand, to obtain a successful aesthetic thanks to an overflow water level substantially at floor height around the swimming pool, on the other hand providing good thermal insulation performance in the closed position of the platform which is then substantially level with the floor, and still allowing a flat surface formed by the mobile platform to be obtained then in the raised position and the floor peripheral to the swimming pool, advantageously without the presence of intermediate discontinuity.

Another aim of the present invention is to provide such a swimming pool which minimizes the construction space necessary for the production of an overflow swimming pool, and by comparison with the known state of the art.

Another aim of the present invention is to provide a swimming pool which drastically limits heat loss when not in use.

Other objects and advantages of the invention will become apparent from the description which will follow and which is given only as an indication.

• des parois latérales et une plateforme mobile définissant entre elles le volume de baignade de la piscine, la plateforme pouvant passer d'au moins une position basse, immergée, vers une position relevée à l'air libre, de fermeture du volume de baignade,
• un système d'actionnement de ladite plateforme mobile à la montée ou à la descente,
• un conduit de circulation, périphérique, disposé en périphérie du volume de baignade et desdits parois latérales, ledit conduit de circulation présentant un système de bouche supérieure et un système de bouche inférieure communiquant avec le volume de baignade de telle manière à permettre que, sous l'action de la plateforme mobile, l'eau circule à travers ledit conduit de circulation, de part et d'autre de la plateforme mobile, du système de bouche supérieure vers le système de bouche inférieure lors de l'ascension de ladite plateforme mobile, et du système de bouche inférieure vers le système de bouche supérieure lors de la descente de ladite plateforme mobile.

The invention also relates to a swimming pool with a movable bottom and comprising:

• side walls and a movable platform defining between them the bathing volume of the swimming pool, the platform being able to pass from at least a low, submerged position to a raised position in the open air, for closing the bathing volume,
• a system for actuating said mobile platform on ascent or descent,
• a peripheral circulation duct disposed at the periphery of the bathing volume and of said side walls, said circulation duct having an upper mouth system and a lower mouth system communicating with the bathing volume in such a way as to allow that, under the 'action of the mobile platform, the water circulates through said circulation duct, on either side of the mobile platform, from the upper mouth system to the lower mouth system during the ascent of said mobile platform, and from the lower mouth system to the upper mouth system during the descent of said mobile platform.

• un réservoir d'eau principale contenant l'eau du volume de baignade en débordement, recevant lesdites parois latérales, le conduit de circulation et la plateforme mobile,
• un ou plusieurs réservoirs secondaires de collecte des eaux en débordement, à fonction de tampon, dits réservoirs tampon,
• un système de pompe reliant les réservoirs tampon et alimentant en continu le volume de baignade en débordement à partir de l'eau des réservoirs tampon,

et dans laquelle ladite piscine comprend un système de collecte des eaux, s'étendant en périphérie du volume de baignade et convenant pour la collecte des eaux en débordement sur la périphérie du volume de baignade
et dans laquelle ledit système de collecte des eaux en débordement est mobile, au moins en partie, pouvant passer :

• d'une position basse pour laquelle le système de collecte des eaux, d'une part, constitue une surverse définissant la hauteur du débordement, assurant la réception des eaux lorsque la piscine fonctionne en débordement, la plateforme mobile alors statique en position basse immergée, dans un premier état dudit système de collecte autorisant l'écoulement de l'eau collectée vers le ou les réservoir tampon, et d'autre part, constitue une surface de piétinement sensiblement à niveau de la plateforme mobile alors en position relevée et de fermeture du volume de baignade, en particulier dans un deuxième état dudit système de collecte,
• vers une position haute, située au-dessus du niveau de la position relevée et de fermeture de la plateforme mobile, position haute pour laquelle le système de collecte des eaux constitue une barrière périphérique anti-débordement lors des mouvements de montée ou de descente de la plateforme mobile, dans un troisième état dudit système de collecte qui constitue alors le système de bouche supérieure du circuit de circulation par lequel entrent les eaux lors de la montée de la plateforme mobile, ou ressortent les eaux lors de la descente de la plateforme mobile.

According to the invention, said swimming pool is an infinity pool comprising:

• a main water tank containing the water from the overflowing bathing volume, receiving said side walls, the circulation duct and the mobile platform,
• one or more secondary tanks for collecting overflow water, acting as a buffer, called buffer tanks,
• a pump system connecting the buffer tanks and continuously supplying the overflowing bathing volume from the water in the buffer tanks,

and wherein said swimming pool comprises a water collection system, extending around the periphery of the bathing volume and suitable for collecting overflowing water on the periphery of the bathing volume
and wherein said overflow water collection system is mobile, at least in part, able to pass:

• a low position for which the water collection system, on the one hand, constitutes an overflow defining the height of the overflow, ensuring the reception of water when the swimming pool operates in overflow, the mobile platform then static in the lower submerged position, in a first state of said collection system allowing the flow of the water collected towards the buffer tank (s), and on the other hand, constitutes a trampling surface substantially level with the mobile platform then in the raised and closed position of the bathing volume, in particular in a second state of said collection system,
• to a high position, located above the level of the raised and closed position of the mobile platform, high position for which the water collection system constitutes a peripheral anti-overflow barrier during upward or downward movements of the mobile platform, in a third state of said collection system which then constitutes the upper mouth system of the circulation circuit through which the water enters when the mobile platform is raised, or the water comes out when the mobile platform is lowered.

• ledit conduit de circulation de l'eau, est périphérique, défini par l'inter-espace d'une double paroi formée entre une enveloppe extérieure étanche de la piscine définissant le réservoir d'eau principale et lesdites parois latérales, internes à l'enveloppe extérieure étanche, lesdites parois latérales étant immergées sur toute leur hauteur au moins lors du fonctionnement en débordement ;
• le système de collecte des eaux est situé extérieur à la double paroi formant la conduite de circulation, la piscine présentant une margelle, périphérique, recouvrant l'inter-espace de la double paroi, ladite margelle étant destinée à être piétinée, et dans laquelle la surface supérieure de la margelle est située à hauteur de la surface de piétinement du système de collecte des eaux, dans ladite position basse dudit système de collecte et de telle façon que les surfaces de piétinement appartenant respectivement à la plateforme mobile en position relevée de fermeture de la plateforme mobile, à la margelle et au système de collecte se prolongent sans discontinuité de niveau,
• ladite margelle est configurée de manière à ce que l'eau débordant du volume de baignade s'écoule par-dessus la margelle jusqu'au système de collecte lors du fonctionnement de la piscine en débordement, ou encore, lors des mouvements de montée de la plateforme mobile ;
• les réservoirs tampon sont reçus en périphérie, extérieurement à la double paroi formant le conduit de circulation, reçus dans une structure creuse, le système de collecte des eaux étant situé à l'aplomb et au-dessus de la structure creuse, positionné latéralement au conduit de circulation ;
• la structure creuse, s'étendant sur toute la périphérie de la double paroi formant la conduite de circulation, ladite structure formant une pluralité de caissons verticaux, répartis sur ladite périphérie, lesdits réservoirs tampon reçus respectivement dans lesdits caissons verticaux ;
• un isolant thermique, tel que de la mousse synthétique garnit les vides de la structure creuse et isole chaque réservoir tampon par l'extérieur, l'isolant reçu garnissant l'inter-espace entre le réservoir tampon et les parois intérieures du caisson ;
• un système de joint assure la fermeture étanche entre la plateforme mobile et la margelle, dans ladite position relevée de fermeture de la plateforme mobile.

According to optional characteristics of the invention taken alone or in combination:

• said water circulation duct, is peripheral, defined by the inter-space of a double wall formed between a sealed outer casing of the swimming pool defining the main water tank and said side walls, internal to the casing sealed exterior, said side walls being submerged over their entire height at least during overflow operation;
• the water collection system is located outside the double wall forming the circulation pipe, the swimming pool having a peripheral coping, covering the inter-space of the double wall, said coping being intended to be walked on, and in which the upper surface of the coping is located at the level of the trampling surface of the water collection system, in said lower position of said collection system and in such a way that the trampling surfaces belonging respectively to the mobile platform in the raised closed position of the mobile platform, the coping and the collection system extend without any level discontinuity,
• said coping is configured so that the water overflowing from the bathing volume flows over the coping to the collection system during operation of the overflowing swimming pool, or again, during upward movements of the mobile platform;
• the buffer tanks are received at the periphery, outside the double wall forming the circulation duct, received in a hollow structure, the water collection system being located directly above and above the hollow structure, positioned laterally to the duct circulation;
• the hollow structure, extending over the entire periphery of the double wall forming the circulation pipe, said structure forming a plurality of vertical boxes, distributed on said periphery, said buffer reservoirs received respectively in said vertical boxes;
• a thermal insulator, such as synthetic foam, lines the voids of the hollow structure and insulates each buffer tank from the outside, the received insulation lining the inter-space between the buffer tank and the interior walls of the box;
• a seal system ensures the leaktight closure between the mobile platform and the coping, in said raised position for closing the mobile platform.

• une goulotte de réception des eaux, de section en U, comprenant une paroi de fond, et deux parois latérales en saillie, s'étendant de part et d'autre de la paroi de fond, définissant une ouverture supérieure de la goulotte de réception des eaux, la paroi latérale intérieure située du côté du volume de baignade présentant des premières ouvertures, en particulier latérales en communication avec la conduite de circulation, et des secondes ouvertures, en particulier de fond, en communication avec les réservoirs tampon,
• une grille, sensiblement horizontale, recouvrant l'ouverture supérieure de la goulotte de réception des eaux, et dont la surface supérieure constitue la surface de piétinement,
• un organe d'obturation et de dérivation, interne à la goulotte, et mobile par rapport à la goulotte pouvant prendre trois positions :
  • une première position haute pour laquelle l'organe d'obturation et de dérivation vient obturer la grille dans la position basse du système de collecte des eaux alors dans ledit deuxième état pour lequel la plateforme mobile est en position relevée et de fermeture de la piscine,
  • une deuxième position, inférieure à la première position pour laquelle l'organe d'obturation et de dérivation libère les ouvertures de la grille, dans la position basse du système de collecte des eaux pour laquelle la plateforme mobile est statique, en position basse immergée, autorisant l'eau en débordement à traverser la grille et chuter dans la goulotte de réception des eaux, l'organe d'obturation et de dérivation obturant les premières ouvertures, notamment latérales de la goulotte, l'eau collectée dans la goulotte étant évacuée au travers des secondes ouvertures vers les réservoirs tampons,
  • une troisième position, supérieure par rapport à la première et seconde positions, pour laquelle l'organe d'obturation et de dérivation emporte et supporte la grille au-dessus du niveau de la position relevée de fermeture de la plateforme, libérant les premières ouvertures de la goulotte de réception des eaux, constituant la position haute du système de collecte des eaux, l'organe d'obturation et de dérivation constituant en cette position haute ladite barrière périphérique anti-débordement, l'eau poussée par les déplacements de la plateforme s'écoulant au travers dudit conduit de circulation, au travers des premières ouvertures de la goulotte de réception des eaux.

According to one embodiment, the overflow water collection system comprises:

• a water reception chute, of U-shaped section, comprising a bottom wall, and two projecting side walls, extending on either side of the bottom wall, defining an upper opening of the water reception chute water, the inner side wall located on the side of the bathing volume having first openings, in particular lateral openings in communication with the circulation pipe, and second openings, in particular at the bottom, in communication with the buffer tanks,
• a grid, substantially horizontal, covering the upper opening of the water receiving chute, and the upper surface of which constitutes the trampling surface,
• a closure and bypass member, internal to the chute, and movable relative to the chute, which can take three positions:
  • a first high position for which the closure and bypass member closes the grid in the low position of the water collection system then in said second state for which the movable platform is in the raised and closed position of the swimming pool,
  • a second position, lower than the first position for which the closure and bypass member releases the openings of the grid, in the low position of the water collection system for which the mobile platform is static, in the low submerged position, allowing the overflowing water to pass through the grid and fall into the water receiving chute, the closure and bypass member closing off the first openings, in particular at the side of the chute, the water collected in the chute being discharged to the through second openings to the buffer tanks,
  • a third position, higher than the first and second positions, for which the closure and bypass member carries and supports the grid above the level of the raised closed position of the platform, freeing the first openings of the water reception chute, constituting the high position of the water collection system, the closure and bypass member constituting in this high position said peripheral anti-overflow barrier, the water pushed by the movements of the platform s 'flowing through said circulation duct, through the first openings of the water receiving chute.

According to one embodiment, a shutter system, internal to the chute, closes the second openings when the collection system is in the high position and so that the water flows through the first openings, said system. shutter opening the second openings in the first state of the collection system when the collection system is in the low position and so that the overflow water collected in the chute is directed to the buffer tanks.

• une vis sans fin, motorisée, sensiblement verticale reçue dans la double paroi,
• un écrou solidaire d'un support saillant latéralement de la plateforme mobile coopérant avec la vis sans fin.

According to one embodiment, the platform actuator system comprises a plurality of actuators received in the double wall forming the circulation pipe, each actuator comprising:

• a motorized endless screw, substantially vertical received in the double wall,
• a nut integral with a support projecting laterally from the mobile platform cooperating with the worm.

• une goulotte de réception des eaux, de section en U, comprenant une paroi de fond, et deux parois latérales, s'étendant de part et d'autre de la paroi de fond, la paroi latérale intérieure située du côté du volume de baignade présentant des premières ouvertures, en particulier latérales en communication avec le conduit de circulation, et des secondes ouvertures , en particulier de fond, en communication avec les réservoirs tampon ,
• une partie statique, recouvrant la goulotte, formant une surface de piétinement sensiblement à niveau de la plateforme mobile alors en position relevée et de fermeture du volume de baignade, ladite partie statique définissant ladite position basse dudit système de collecte, un inter-espace séparant ladite partie statique de la margelle formant une ouverture supérieure pour la goulotte,

• une partie mobile interne à la goulotte et mobile par rapport à la goulotte et à ladite partie statique pouvant prendre trois positions :
  • une première position d'obturation pour laquelle ladite partie mobile vient obturer l'inter-espace entre la margelle et ladite partie statique, le système de collecte des eaux alors dans ledit deuxième état pour lequel la plateforme mobile est en position relevée et de fermeture de la piscine, la surface supérieure de la partie mobile prolongeant la surface de piètement de ladite partie statique,
  • une deuxième position, inférieure à la première position pour laquelle la partie mobile (ouvre la goulotte de réception des eaux, autorisant l'eau en débordement à chuter dans la goulotte de réception des eaux, dans ladite position basse du système de collecte des eaux alors dans le premier état pour lequel la plateforme mobile est statique, en position basse immergée, la partie mobile (obturant les premières ouvertures (notamment latérales de la goulotte, l'eau collectée dans la goulotte étant évacuée au travers des secondes ouvertures vers les réservoirs tampon,
  • une troisième position, supérieure par rapport à la première et seconde positions, pour laquelle ladite partie mobile est agencée au-dessus du niveau de la position relevée de fermeture de la plateforme, libérant les premières ouvertures de la goulotte de réception des eaux, formant la position haute du système de collecte des eaux, ladite partie mobile formant en cette position haute ladite barrière périphérique anti-débordement et ledit système de bouche supérieure, l'eau poussée par les déplacements de la plateforme s'écoulant au travers dudit conduit de circulation au travers des premières ouvertures de la goulotte de réception des eaux.

According to one embodiment, the overflow water collection system comprises:

• a water receiving chute, of U-shaped section, comprising a bottom wall, and two side walls, extending on either side of the bottom wall, the inner side wall located on the side of the bathing volume having first openings, in particular lateral in communication with the circulation duct, and second openings, in particular at the bottom, in communication with the buffer reservoirs,
• a static part, covering the chute, forming a trampling surface substantially level with the mobile platform then in the raised and closed position of the bathing volume, said static part defining said low position of said collection system, an inter-space separating said static part from the coping forming an upper opening for the chute,

• a movable part internal to the chute and movable relative to the chute and to said static part which can take three positions:
  • a first closed position for which said movable part closes the inter-space between the coping and said static part, the water collection system then in said second state for which the movable platform is in the raised and closed position the swimming pool, the upper surface of the mobile part extending the base surface of said static part,
  • a second position, lower than the first position for which the mobile part (opens the water reception chute, allowing the overflow water to fall into the water reception chute, in said low position of the water collection system then in the first state for which the mobile platform is static, in the lower submerged position, the mobile part (closing the first openings (in particular at the side of the chute, the water collected in the chute being discharged through the second openings to the buffer tanks ,
  • a third position, higher than the first and second positions, for which said movable part is arranged above the level of the raised closed position of the platform, releasing the first openings of the water receiving chute, forming the high position of the water collection system, said movable part forming in this high position said peripheral anti-overflow barrier and said upper mouth system, the water pushed by the movements of the platform flowing through said circulation duct at the through the first openings of the water reception chute.

According to one embodiment, the collection system comprises at least one actuator with three stable positions, configured respectively for the control of the movable part according to said first position, said second position and said third position.

• une tige d'actionneur solidaire de la partie mobile solidaire d'une came, montée pivotante par rapport à l'axe de la tige, ladite came présentant des ergots de came
• un cylindre fixe, présentant des encoches pentées, y compris des premières encoches recevant les ergots de came dans ladite première position d'obturation de ladite partie mobile et des secondes encoches, de niveau inférieure aux premières encoches, recevant les ergots de came dans ladite deuxième position ladite partie mobile, lesdites premières encoches et les seconde encoches réparties en alternance sur la périphérie du cylindre fixe
• un plongeur, d'axe coaxial au cylindre fixe, reçu coaxialement à l'intérieur du cylindre fixe, configuré pour monter ou descendre, sans possibilité de rotation suivant l'axe du cylindre fixe , présentant à son extrémité supérieure une pluralité de pentes,
• un ballon pneumatique reçu dans le cylindre fixe, à l'état dégonflé dans la première position et la deuxième position de la partie mobile, (702) et à l'état gonflé pour actionner le plongeur à la montée dans la troisième position de ladite partie mobile

et dans laquelle ledit actionneur est configuré pour qu'à chaque séquence de montée et descente du plongeur sous l'action du ballon pneumatique, les ergots de came alors reçus dans les premières encoches (ou alternativement dans lesdites secondes encoches) sont emportés à la montée par le plongeur, les pentes du plongeur provoquant après dégagement des ergots de came des premières encoches (ou alternativement les secondes encoches), le pivotement partiel de la came et des ergots de came, et jusqu'à la descente du plongeur où lesdits ergots partiellement pivotés viennent engager avec les deuxièmes encoches (ou alternativement lesdites secondes encoches) obtenant ainsi le passage du deuxième état vers le première état du système de collecte des eaux, ou inversement.According to one embodiment, said actuator with three stable positions comprises:

• an actuator rod integral with the movable part integral with a cam, pivotally mounted relative to the axis of the rod, said cam having cam lugs
• a fixed cylinder, having sloping notches, including first notches receiving the cam lugs in said first closed position of said movable part and second notches, lower level than the first notches, receiving the cam lugs in said second position said movable part, said first notches and the second notches distributed alternately on the periphery of the fixed cylinder
• a plunger, of axis coaxial with the fixed cylinder, received coaxially inside the fixed cylinder, configured to rise or fall, without the possibility of rotation along the axis of the fixed cylinder, having at its upper end a plurality of slopes,
• a pneumatic balloon received in the fixed cylinder, in the deflated state in the first position and the second position of the movable part, (702) and in the inflated state to actuate the plunger to rise in the third position of said part mobile

and wherein said actuator is configured so that at each up and down sequence of the plunger under the action of the pneumatic balloon, the cam pins then received in the first notches (or alternatively in said second notches) are carried on the ascent by the plunger, the slopes of the plunger causing, after release of the cam lugs from the first notches (or alternatively the second notches), the partial pivoting of the cam and the cam lugs, and until the descent of the plunger where said lugs partially pivoted come into engagement with the second notches (or alternatively said second notches) thus obtaining the passage from the second state to the first state of the water collection system, or vice versa.

According to one embodiment, the swimming pool, including the main tank, the buffer tanks, the side walls, the circulation duct, the mobile platform, the actuation systems, the water collection system, the hollow structure forms a whole in one piece, self-supporting.

The swimming pool can be buried so that the floor peripheral to the swimming pool is constructed substantially at the height of the trampling surface of said collection system in said low position of said collection system.

• La figure 1 est une vue en perspective d'une piscine à fond mobile et à débordement selon un mode de réalisation,
• La figure 2 est une vue en coupe selon le plan de coupe verticale I-I de la figure 1,
• La figure 3 est une vue en coupe selon le plan de coupe horizontal II-II de la figure 2,
• La figure 4 est une vue de détail d'une section de longueur périphérique de la piscine, illustrant en détail, une structure creuse recevant les réservoirs tampon, ainsi que le système de collecte des eaux, supérieure à la structure creuse,
• La figure 5 est une vue selon un éclaté, illustrant les différents organes du système de collecte des eaux, y compris la goulotte de réception des eaux, la grille, l'organe d'obturation et de dérivation, le système d'obturateur des secondes ouvertures, ainsi qu'un actionneur du type vis-sans fin,
• La figure 6 est une vue de détail du système de collecte, dans sa position basse et dans le premier état dudit système de collecte, l'organe d'obturation et de dérivation dans ladite deuxième position autorisant la collecte des eaux en débordement chutant dans la goulotte, à travers la grille, l'eau collectée étant dirigée dans les réservoirs tampon,
• La figure 7a est une vue de détail du système de collecte, dans sa position haute, dans le troisième état dudit système de collecte pour lequel le système de collecte forme une barrière anti-débordement et constitue le système de bouche supérieure du circuit de circulation par lequel entrent les eaux lors de la montée de la plateforme mobile,
• La figure 7b est une vue de détail du système de collecte, dans sa position haute, dans le troisième état dudit système de collecte pour lequel le système de collecte forme une barrière anti-débordement et constitue le système de bouche supérieure du circuit de circulation par lequel ressortent les eaux lors de la descente de la plateforme mobile,
• La figure 8 est une vue du deuxième état dudit système de collecte, dans la position basse P1 du système de collecte et la plateforme en position Pf relevée de fermeture assurant l'isolation thermique de la piscine,
• Les figures 9 et 10 sont des vues de coupe, selon un plan vertical d'une piscine conforme à l'invention selon un second mode de réalisation, illustrant plus particulièrement le système de collecte dans sa position basse, dans le premier état dudit système de collecte autorisant l'écoulement de l'eau collectée vers le ou les réservoirs tampon,
• La figure 11 est une vue de l'actionneur commandant une partie mobile du système de collecte de la figure 8, assurant le premier état dudit système de collecte, dans une première position basse de l'actionneur autorisant l'écoulement de l'eau collectée vers le ou les réservoirs tampon,
• Les figures 12 et 13 sont des vues du système de collecte selon les figures 9 et 10, dans sa position haute, dans le troisième état dudit système de collecte pour lequel le système de collecte forme une barrière anti-débordement et constitue le système de bouche supérieure du circuit de circulation par lequel entrent les eaux lors de la montée de la plateforme mobile (ou ressortent les eaux lors de la descente de la plateforme mobile),
• La figure 14 est une vue de l'actionneur commandant une partie mobile du système de collecte de la figure 12, assurant le troisième état dudit système de collecte, dans la position haute de l'actionneur autorisant l'écoulement de l'eau vers le conduit de circulation,
• La figure 15 est une vue de coupe selon la figure 9, dans la position basse du système de collecte dans le deuxième état dudit système de collecte pour lequel le système de collecte constitue une surface de piétinement sensiblement à niveau de la plateforme mobile alors en position relevée et de fermeture du volume de baignade, 13
• La figure 16 est une vue de l'actionneur commandant une partie mobile du système de collecte de la figure 8, assurant le deuxième état dudit système de collecte, dans une deuxième position basse de l'actionneur assurant l'obturation du système de collecte.

The invention will be better understood on reading the following description accompanied by the appended drawings, among which:

• The figure 1 is a perspective view of a swimming pool with a movable bottom and overflow according to one embodiment,
• The figure 2 is a sectional view along the vertical sectional plane II of the figure 1 ,
• The figure 3 is a sectional view along the horizontal section plane II-II of the figure 2 ,
• The figure 4 is a detail view of a section of peripheral length of the swimming pool, illustrating in detail, a hollow structure receiving the buffer tanks, as well as the water collection system, superior to the hollow structure,
• The figure 5 is an exploded view, illustrating the different components of the water collection system, including the water receiving chute, the grid, the shutter and bypass member, the shutter system for the second openings, as well as an actuator of the worm type,
• The figure 6 is a detail view of the collection system, in its low position and in the first state of said collection system, the closure and bypass member in said second position allowing the collection of overflowing water falling into the chute, at through the grid, the water collected being directed into the buffer tanks,
• The figure 7a is a detail view of the collection system, in its high position, in the third state of said collection system for which the collection system forms an anti-overflow barrier and constitutes the upper mouth system of the circulation circuit through which the water when the mobile platform is raised,
• The figure 7b is a detail view of the collection system, in its high position, in the third state of said collection system for which the collection system forms an anti-overflow barrier and constitutes the upper mouth system of the circulation circuit through which the water when lowering the mobile platform,
• The figure 8 is a view of the second state of said collection system, in the low position P1 of the collection system and the platform in the closed raised position Pf ensuring the thermal insulation of the swimming pool,
• The figures 9 and 10 are sectional views, along a vertical plane of a swimming pool according to the invention according to a second embodiment, more particularly illustrating the collection system in its low position, in the first state of said collection system allowing flow water collected to the buffer tank (s),
• The figure 11 is a view of the actuator controlling a moving part of the waste collection system figure 8 , ensuring the first state of said collection system, in a first low position of the actuator allowing the flow of the water collected towards the buffer tank (s),
• The figures 12 and 13 are views of the collection system according to figures 9 and 10 , in its high position, in the third state of said collection system for which the collection system forms an anti-overflow barrier and constitutes the upper mouth system of the circulation circuit through which the water enters when the mobile platform is raised (where the water comes out when lowering the mobile platform),
• The figure 14 is a view of the actuator controlling a moving part of the waste collection system figure 12 , ensuring the third state of said collection system, in the high position of the actuator allowing the flow of water to the circulation pipe,
• The figure 15 is a sectional view according to figure 9 , in the low position of the collection system in the second state of said collection system for which the collection system constitutes a trampling surface substantially level with the mobile platform then in the raised position and closed for the bathing volume, 13
• The figure 16 is a view of the actuator controlling a moving part of the waste collection system figure 8 , ensuring the second state of said collection system, in a second low position of the actuator ensuring the closure of the collection system.

• des parois latérales 2 et une plateforme mobile 3 définissant entre elle le volume de baignade de la piscine, la plateforme pouvant passer d'au moins une position basse, immergée, vers une position Pf relevée à l'air libre, de fermeture du volume de baignade V,
• un système d'actionnement 4,5 de ladite plateforme mobile 3 à la montée ou à la descente,
• un conduit de circulation 6, périphérique, disposé en périphérie du volume de baignade et desdits parois latérales 2, ledit conduit de circulation 6 présentant un système de bouche, supérieure 60 et un système de bouche inférieure 61 communiquant avec le volume de baignade de telle manière à permettre que, sous l'action de la plateforme mobile 3, l'eau circule à travers ledit conduit de circulation 6, de part et d'autre de la plateforme mobile 3, du système de bouche supérieure 60 vers le système de bouche inférieure 61 lors de l'ascension de ladite plateforme mobile 3, et du système de bouche inférieure 61 vers le système de bouche supérieure 60 lors de la descente de ladite plateforme mobile 3.

The invention also relates to a swimming pool 1 with a movable bottom comprising:

• side walls 2 and a mobile platform 3 defining between it the bathing volume of the swimming pool, the platform being able to pass from at least a low position, submerged, to a position Pf raised in the open air, closing the volume of bathing V,
• a system for actuating 4, 5 of said mobile platform 3 on ascent or descent,
• a circulation duct 6, peripheral, disposed at the periphery of the bathing volume and said side walls 2, said circulation duct 6 having a mouth system, upper 60 and a lower mouth system 61 communicating with the bathing volume in such a way to allow, under the action of the mobile platform 3, the water to circulate through said circulation duct 6, on either side of the mobile platform 3, from the upper mouth system 60 to the lower mouth system 61 during the ascent of said mobile platform 3, and from the lower mouth system 61 towards the upper mouth system 60 during the descent of said mobile platform 3.

Mobile platform and water circulation via the circulation pipe during platform movements:

The mobile platform 3 in the closed position Pf advantageously makes it possible to constitute a floor extending the peripheral floor to the swimming pool, and as illustrated by way of indication on figure 8 .

• de limiter le jeu de fonctionnement entre le bord périphérique de la plateforme et les parois latérales 2, notamment inférieur à 2 cm, de préférence inférieur à 1 cm. Limiter ce jeu permet de limiter les risques de pincement, et de limiter la chute de petit objet sous la plateforme,
• d'utiliser pour la plateforme mobile, une plateforme étanche (à l'air), voire de préférence isoler thermiquement, et dans l'objectif de limiter drastiquement les échanges thermiques entre l'eau contenue dans la piscine et l'extérieur lorsque la plateforme mobile est en position Pf relevée et de fermeture : autrement dit, et en position Pf relevée et de fermeture la plateforme mobile constitue un couvercle fermant le volume de baignade, limitant les déperditions thermiques avec l'environnement extérieur.

The circulation pipe 6 allowing the circulation of water on either side of the mobile platform during its movements, advantageously allows:

• to limit the operating clearance between the peripheral edge of the platform and the side walls 2, in particular less than 2 cm, preferably less than 1 cm. Limiting this clearance limits the risk of pinching, and limits the fall of small objects under the platform,
• to use for the mobile platform, a waterproof platform (to air), or even preferably thermally insulate, and with the objective of drastically limiting the thermal exchanges between the water contained in the swimming pool and the outside when the platform mobile is in the raised and closed Pf position: in other words, and in the raised and closed Pf position, the mobile platform forms a cover closing the bathing volume, limiting heat loss with the external environment.

Overflowing swimming pool :

• un réservoir principal contenant l'eau du volume de baignade en débordement, recevant lesdites parois latérales 2, le conduit de circulation 6 et la plateforme mobile 3
• un ou plusieurs réservoirs secondaires de collecte des eaux en débordement, à fonction de tampon, dits réservoirs tampon 8,
• un système de pompe reliant les réservoirs tampon 8 et alimentant en continu le volume de baignade en débordement à partir de l'eau des réservoirs tampon 8.

According to the invention, said swimming pool is an infinity pool comprising:

• a main tank containing the water from the overflowing bathing volume, receiving said side walls 2, the circulation duct 6 and the mobile platform 3
• one or more secondary tanks for collecting overflow water, acting as a buffer, called buffer tanks 8,
• a pump system connecting the buffer tanks 8 and continuously supplying the overflowing bathing volume from the water in the buffer tanks 8.

The buffer tank (s) 8 are separate from the main water tank: they are necessary for the operation of the overflow swimming pool. Their function is to ensure a constant level of water in the main tank operating in overflow, whatever the bathing conditions (for example the number of bathers present in the bathing volume) and / or external conditions (for example example the presence of excess water due to rain).

Operation of the water collection system:

Still noticeably, said swimming pool comprises a system 7 for collecting water, extending around the periphery of the bathing volume and suitable for collecting overflowing water on the periphery of the bathing volume.

• d'une position basse P1 pour laquelle le système de collecte des eaux, d'une part, constitue une surverse définissant la hauteur du débordement, assurant la réception des eaux lorsque la piscine fonctionne en débordement (voir figure 6), la plateforme mobile 3 alors statique en au moins une position basse immergée, dans un premier état E1 dudit système 7 de collecte autorisant l'écoulement de l'eau collectée vers le ou les réservoirs tampon 8, et d'autre part, constitue une surface de piétinement sensiblement à niveau de la plateforme mobile alors en position Pf relevée de la plateforme et de fermeture du volume de baignade, en particulier dans un deuxième état dudit système de collecte E2 (voir figure 8),
• vers une position haute P2, située au-dessus du niveau de la position Pf relevée et de fermeture de la plateforme mobile 3, position haute pour laquelle le système 7 de collecte des eaux constitue une barrière périphérique B anti-débordement lors des mouvements de montée ou de descente de la plateforme mobile 3, dans un troisième état E3 dudit système de collecte, et constitue le système de bouche supérieure 60 du circuit de circulation 6 par lequel entrent les eaux lors de la montée de la plateforme mobile 3 (voir figure 7a), ou ressortent les eaux lors de la descente de la plateforme mobile 3 (voir figure 7b).

According to the invention and notably, said system 7 for collecting overflowing water is mobile, at least in part, able to pass:

• a low position P1 for which the water collection system, on the one hand, constitutes an overflow defining the height of the overflow, ensuring the reception of water when the swimming pool operates in overflow (see figure 6 ), the mobile platform 3 then static in at least one lower submerged position, in a first state E1 of said collection system 7 allowing the flow of the water collected towards the buffer tank (s) 8, and on the other hand, constitutes a trampling surface substantially level with the mobile platform then in position Pf raised from the platform and closing the volume bathing, in particular in a second state of said collection system E2 (see figure 8 ),
• to a high position P2, located above the level of the raised and closed Pf position of the mobile platform 3, high position for which the water collection system 7 constitutes a peripheral anti-overflow barrier B during upward movements or descent of the mobile platform 3, in a third state E3 of said collection system, and constitutes the upper mouth system 60 of the circulation circuit 6 through which the water enters during the ascent of the mobile platform 3 (see figure 7a ), or the water comes out when lowering the mobile platform 3 (see figure 7b ).

As shown in figure 6 , in the low position P1 of said collection system 7, and at least in a first state E1 of said collection system, the latter constitutes the overflow which defines the height of the water of the bathing volume which can advantageously be substantially at the height of the floor S peripheral to the swimming pool: a very successful aesthetic infinity pool is obtained with a " mirror " effect, namely a water level, substantially at the height of the floor peripheral to the swimming pool. The water collected by the system 7 is routed to the buffer tank (s) 8.

As shown in figure 8 , and in the low position P1 of said collection system, in particular in a second state E2 of said collection system and when the mobile platform 3 is in the raised and closed position Pf, the trampling surface of the mobile platform 3 extends the floor S peripheral to the swimming pool, as well as the trampling surface of the intermediate collection system 7, or even of an intermediate coping 9, forming an advantageously flat surface, namely without notable height discontinuity on which a user can stumble and fall. In this position, the mobile platform 3 advantageously makes it possible to effectively insulate the swimming pool when not in use and in order to avoid heat loss.

According to the tests implemented by the inventor in such a swimming pool, a slight increase in the water level on the surface is observed during the movements of the platform on ascent or descent: advantageously in said high position P2, the collection system constitutes an anti-overflow barrier which responds to this slight increase in level.

Thus and as illustrated in figure 7a , in the high position P2 of said collection system, and during the upward movements of the platform, the collection system 7 constitutes an anti-overflow peripheral barrier, above the raised and closed position Pf of the platform which allows to ensure that the water pushed by the mobile platform 3 is fully collected in the water collection system 7 which then constitutes the upper mouth system 60 of the circulation pipe 6: the water thus collected in the system 7 is routed via the circulation pipe 6 to the lower mouth system 61 through which the water comes out under the mobile platform 3.

Finally and as illustrated in figure 7b , in the high position P2 of said collection system, and during downward movements of the mobile platform 3, the collection system constitutes an anti-overflow peripheral barrier, above the raised and closed position Pf of the platform which makes it possible to ensure that the water pushed by the mobile platform 3 entering through the lower mouth system 61, passing through the circulation duct 6 and exiting through the upper mouth system 60 is well confined in the main tank, and without risk of overflow beyond the peripheral floor S of the swimming pool.

Advantages of the invention

This advantageously provides a swimming pool with a movable bottom and overflow having all the advantages of an infinity pool with a mirror effect and a swimming pool with a movable bottom.

Advantageously, the invention eliminates the main drawback of an overflow swimming pool according to the state of the art, namely the large heat losses (when not in use), when the platform 3 is in the closed position.

In this raised and closed position Pf, the mobile platform extends the peripheral floor, and advantageously without any level discontinuity between the mobile platform and the floor.

Overall structure of the pool

According to one embodiment, said water circulation pipe 6 is peripheral, defined by the inter-space of a double wall formed between a sealed outer casing of the swimming pool defining the main water tank and said walls. side 2, internal to the sealed outer casing, said side walls 2 being submerged over their entire height, at least during overflow operation.

The water collection system 7 can be located outside the double wall forming the circulation pipe 6, the swimming pool having a peripheral coping 9, covering above the inter-space of the double wall, said coping being intended to be walked on. .

The upper trampling surface of the coping 9 is located at the level of the trampling surface of the water collection system 7, in said low position P1 of said collection system (at least in the raised position of closure Pf of the platform) and in such a way that the trampling surfaces belonging respectively to the mobile platform 3 then in the raised closed position Pf of the mobile platform 3, to the coping 9 and to the collection system 7 are extended, advantageously and in particular without level discontinuity. In other words and as visible at the figure 8 in this position, the user can move from the mobile platform 3 in the Pf position towards the floor S peripheral to the swimming pool, without the risk that the coping 9 or the collection system 7 does not constitute a physical stop on which he is likely to come up against .

Said coping 9 is moreover configured so that the water overflowing from the bathing volume flows over the coping to the collection system 7 during the operation of the overflow swimming pool (see figure 6 ), or again, during upward movements of the mobile platform (see figure 7a ). During downward movements of the mobile platform 3, the water comes out through the collection system and flows over the coping 9 to the bathing volume (see figure 7b ).

The upper surface of the coping 9 may have a (slight) slope with respect to the horizontal when the swimming pool operates in overflow (or during movements of up or down the platform and as visible to figures 6, 7a and 7b ): this slope is rising, from the bathing volume to the collection system 7. At the end of high stroke, the mobile platform 3 can carry the coping 9, which pivots slightly, and up to a position where its upper surface, then substantially horizontal, extends the mobile platform (then in the raised and closed position Pf) and the surface of trampling of the collection system 7.

According to an illustrated embodiment, the buffer tanks 8 can be received at the periphery, outside the double wall forming the circulation duct 6, received in a hollow structure 11, the water collection system 7 being located plumb and above the hollow structure, laterally to the circulation duct 6.

The hollow structure 11 may extend over the entire periphery of the double wall forming the circulation pipe 6, forming a plurality of vertical boxes 12, distributed over the periphery, said buffer tanks 8 respectively received in said vertical boxes 12.

This hollow structure 11 advantageously forms the peripheral sealed envelope which makes it possible to contain the pressure of the water volume of the main tank: the vertical inner side wall 111 peripheral of this structure 11 is preferably sealed and constitutes the outer vertical wall of the double wall forming the circulation duct 6, a second opposite outer lateral wall 112, parallel, which can constitute the outer lateral envelope of the swimming pool. Vertical walls 113 extend regularly over the periphery, perpendicular to the walls 111 and 112, and make it possible to partition the peripheral inter-space between the two walls 111 and 112 into the plurality of vertical caissons 12. These vertical partitions 113 have the function of stiffening the hollow structure 11 which is subjected to the pressure of the volume of water on its inner wall 111, and thus of limiting the deflection of the wall 111 under the effect of the pressure.

A thermal insulation, such as synthetic foam (expanded polystyrene, extruded polystyrene, polyurethane, phenolic foam or other) makes it possible to line the hollows of the structure 11, and in particular each buffer tank 8 from the outside, the insulation received lining the inter-space between the buffer tank 8 and the interior walls of the box 12. This limits the lateral heat losses to the swimming pool.

Still with a view to limiting heat loss, a seal system 10 can make it possible to ensure the tight closure between the mobile platform 3 and the coping 9, in said raised position Pf for closing the mobile platform, and as illustrated in figure 8 .

Structure of the water collection system :

We describe below the structure of a possible embodiment of the water collection system 7 illustrated by figures 1 to 8 .

According to an embodiment illustrated without limitation to the figure 5 , the system 7 for collecting overflowing water can comprise a chute 70, a grid 71, a closure and bypass member 72, or even a shutter system 79.

The water receiving chute 70 extends over the entire periphery of the bathing volume: it is locally U-shaped, and comprising a bottom wall, and two projecting side walls, extending on either side. another of the bottom wall, defining an upper opening of the water receiving chute. The inner side wall located on the side of the bathing volume has first openings 76, in communication with the circulation duct 6. The chute also has second openings 78, in particular on the bottom wall, in communication with the buffer tanks 8 .

The substantially horizontal grid 71 covers the upper opening of the water receiving chute 70. The upper surface of the grid 71 also constitutes the trampling surface of the water collection system 7.

The closure and bypass member 72 is internal to the chute and movable relative to the chute 70, vertically.

• une première position haute PI pour laquelle l'organe 72 d'obturation et de dérivation vient obturer la grille dans la position basse P1 du système 7 de collecte alors dans ledit deuxième état E2 pour lequel la plateforme mobile 3 est en position Pf relevée et de fermeture de la piscine, et comme illustrée à titre d'exemple à la figure 8,
• une deuxième position PII, inférieure à la première position pour laquelle l'organe 72 d'obturation et de dérivation libère les ouvertures de la grille 71, dans la position basse P1 du système de collecte des eaux pour laquelle la plateforme mobile est statique, en position basse immergée, autorisant l'eau en débordement à traverser la grille 71 et chuter dans la goulotte 70 de réception des eaux, l'organe 72 d'obturation et de dérivation obturant les première ouvertures 76, notamment latérales de la goulotte, l'eau collectée dans la goulotte étant évacuée au travers des secondes ouvertures 78 vers les réservoirs tampons 8, et comme illustrée à titre d'exemple à la figure 6,
• une troisième position PIII, supérieure par rapport à la première et seconde positions, pour laquelle l'organe 72 d'obturation et de dérivation emporte et supporte la grille 71 au-dessus du niveau de la position Pf relevée de fermeture de la plateforme, libérant les premières ouvertures 76 de la goulotte de réception des eaux, constituant la position haute P2 du système 7 de collecte des eaux, l'organe d'obturation et de dérivation constituant en cette position haute ladite barrière périphérique B anti-débordement, l'eau poussée par les déplacements de la plateforme s'écoulant au travers dudit conduit de circulation 6, au travers des premières ouvertures 76 de la goulotte de réception des eaux, et comme illustrée aux figures 7a et 7b.

This movable member can take three positions, illustrated in figures 6 to 8 :

• a first high position PI for which the closure and bypass member 72 closes the grid in the low position P1 of the collection system 7 then in said second state E2 for which the mobile platform 3 is in the raised position Pf and for closing the swimming pool, and as illustrated by way of example on figure 8 ,
• a second position PII, lower than the first position for which the closure and bypass member 72 releases the openings of the grid 71, in the low position P1 of the water collection system for which the mobile platform is static, in low submerged position, allowing the overflowing water to pass through the grid 71 and fall into the water-receiving chute 70, the shutter and bypass member 72 closing off the first openings 76, in particular the side openings of the chute, the water collected in the chute being discharged through the second openings 78 to the buffer tanks 8, and as illustrated by way of example on figure 6 ,
• a third position PIII, higher than the first and second positions, for which the closure and bypass member 72 carries and supports the grid 71 above the level of the raised position Pf for closing the platform, freeing the first openings 76 of the water receiving chute, constituting the high position P2 of the water collection system 7, the closure and bypass member constituting in this high position said peripheral anti-overflow barrier B, the water pushed by the movements of the platform flowing through said circulation duct 6, through the first openings 76 of the water receiving chute, and as illustrated in figures 7a and 7b .

The shutter 72 and bypass member is a body preferably extending over the entire length of the grid, the upper surface of which has for example pads 74 closing off the openings of the grid in the PI position, and as illustrated in the figure 8 .

One of the side faces 75 sliding along the side wall of the chute located on the side of the bathing volume has a non-perforated lower part, able to close the first openings 76, in the position PII of said closure member 72 and bypass, and an openwork upper part, allowing water to pass through the side wall in the third position PIII of said closure and bypass member 72, and as illustrated in figures 7a or 7b .

Said shutter and bypass member 72 can be actuated up or down using an actuator, such as a motorized worm screw, as illustrated in figure 5 the screw of which cooperates with a nut integral with the body of the member 72.

The shutter system 79 is internal to the chute, located between the bottom of the chute and the member 72. This shutter system 79 closes the second openings 78 when the collection system 7 is in the high position P2 and so that the water flows through the first openings 76 and, on the other hand, opens the second openings 78 in the first state E1 of the collection system when the collection system is in the low position P1 and so as to that the overflow water collected in the chute is directed to the buffer tanks 8.

It may be a shutter system 79 with vertical displacement, as illustrated in the figures, or else with horizontal displacement, sliding along guide rails on the bottom of the chute.

We further describe the structure of a possible embodiment of the water collection system 7 illustrated by figures 9 to 16 .

• une goulotte 70 de réception des eaux, de section en U, comprenant une paroi de fond, et deux parois latérales, s'étendant de part et d'autre de la paroi de fond, la paroi latérale intérieure située du côté du volume de baignade présentant des premières ouvertures 76, en particulier latérales en communication avec le conduit de circulation 6, et des secondes ouvertures 78, en particulier de fond, en communication avec les réservoirs tampon 8,
• une partie statique 701, recouvrant la goulotte 70, formant une surface de piétinement sensiblement à niveau de la plateforme mobile alors en position Pf relevée et de fermeture du volume de baignade, ladite partie statique 701 définissant ladite position basse P1 dudit système de collecte : un inter-espace It sépare ladite partie statique 701 de la margelle 9 formant une ouverture supérieure pour la goulotte 70.

This system 7 for collecting overflow water comprises:

• a water receiving chute 70, of U-shaped section, comprising a bottom wall, and two side walls, extending on either side of the bottom wall, the inner side wall located on the side of the bathing volume having first openings 76, in particular lateral in communication with the circulation duct 6, and second openings 78, in particular at the bottom, in communication with the buffer reservoirs 8,
• a static part 701, covering the chute 70, forming a trampling surface substantially level with the movable platform then in the raised position Pf and for closing the bathing volume, said static part 701 defining said low position P1 of said collection system: a inter-space It separates said static part 701 from coping 9 forming an upper opening for chute 70.

• une partie mobile 702 interne à la goulotte 70 et mobile par rapport à la goulotte 70 et à ladite partie statique 701 pouvant prendre trois positions :
  • - une première position PI' d'obturation pour laquelle ladite partie mobile 702 vient obturer l'inter-espace entre la margelle 9 et ladite partie statique 701, le système 7 de collecte des eaux alors dans ledit deuxième état E2 pour lequel la plateforme mobile 3 est en position Pf relevée et de fermeture de la piscine, la surface supérieure de la partie mobile 702 prolongeant la surface de piètement de ladite partie statique 701 : cette première position PI' est illustrée à titre indicatif à la figure 15,
  • - une deuxième position PII', inférieure à la première position pour laquelle la partie mobile 702 ouvre la goulotte 70 de réception des eaux, autorisant l'eau en débordement à chuter dans la goulotte 70 de réception des eaux, dans ladite position basse P1 du système de collecte des eaux alors dans le premier état E1 pour lequel la plateforme mobile est statique, en position basse immergée, la partie mobile 702 obturant les premières ouvertures 76, notamment latérales de la goulotte, l'eau collectée dans la goulotte étant évacuée au travers des secondes ouvertures 78 vers les réservoirs tampons 8 : cette première deuxième PII' est illustrée à titre indicatif aux figures 9 et 10,
  • - une troisième position PIII', supérieure par rapport à la première et seconde positions, pour laquelle ladite partie mobile 702 est agencée au-dessus du niveau de la position Pf relevée de fermeture de la plateforme, libérant les premières ouvertures 76 de la goulotte de réception des eaux, formant la position haute P2 du système 7 de collecte des eaux, ladite partie mobile 702 formant en cette position haute ladite barrière périphérique B anti-débordement et ledit système de bouche supérieure 60, l'eau poussée par les déplacements de la plateforme s'écoulant au travers dudit conduit de circulation 6, au travers des premières ouvertures 76 de la goulotte de réception des eaux : cette troisième deuxième PIII' est illustrée à titre indicatif aux figures 12 et 13.

Notably, the system 7 further comprises:

• a movable part 702 internal to the chute 70 and movable relative to the chute 70 and to said static part 701 which can take three positions:
  • - a first closing position PI 'for which said mobile part 702 closes the inter-space between the coping 9 and said static part 701, the water collection system 7 then in said second state E2 for which the mobile platform 3 is in the raised position Pf and for closing the swimming pool, the upper surface of the movable part 702 extending the base surface of said static part 701: this first position PI 'is illustrated by way of indication on figure 15 ,
  • - a second position PII ', lower than the first position for which the mobile part 702 opens the water receiving chute 70, allowing the overflowing water to fall into the water receiving chute 70, in said low position P1 of the water collection system then in the first state E1 for which the mobile platform is static, in the lower submerged position, the mobile part 702 closing off the first openings 76, in particular the side openings of the chute, the water collected in the chute being discharged to the through second openings 78 to the buffer tanks 8: this first second PII 'is illustrated by way of indication figures 9 and 10 ,
  • - a third position PIII ', greater than the first and second positions, for which said movable part 702 is arranged above the level of the raised position Pf for closing the platform, freeing the first openings 76 of the chute from water reception, forming the high position P2 of the water collection system 7, said movable part 702 forming in this high position said peripheral anti-overflow barrier B and said upper mouth system 60, the water pushed by the movements of the platform flowing through said circulation duct 6, through the first openings 76 of the water reception chute: this third second PIII 'is illustrated by way of indication in figures 12 and 13 .

Note that the mobile part 702 comprises an upper wall 702a, a side wall 702b which closes the first openings 76 in the second position PII 'or free the first openings 76 in the third position PIII'.

The mobile part 702 is integral with a shutter system 79 which in the position PII 'opens the second openings 78, and in the position PIII' closes them.
The mobile part 702 forms the upper mouth system 60, in position PIII ', with the presence of side opening 702c oriented towards the bathing volume and through which the water can enter or exit during the movements of the platform 3. The waters internally passing through part 702 are guided by an internal wall 702d forming an angle transmission.

The collection system can comprise at least one actuator, with three stable positions, configured respectively for the control of the movable part 702 according to said first position PI ', said second position PII' and said third position PIII '.

Advantageously, this actuator can be of the pneumatic type, avoiding the use of an electric actuator in a humid environment.

• une tige 703 d'actionneur solidaire de la partie mobile 702 solidaire d'une came 704, montée pivotante par rapport à l'axe de la tige, ladite came présentant des ergots de came 705
• un cylindre fixe 706, présentant des encoches pentées 707, 708, y compris des premières encoches 707 recevant les ergots de came 705 dans ladite première position d'obturation PI' de ladite partie mobile 702 et des secondes encoches 708, de niveau inférieur aux premières encoches, recevant les ergots de came dans ladite deuxième position PII' ladite partie mobile 702, lesdites premières encoches 707 et les seconde encoches réparties en alternance sur la périphérie du cylindre fixe 706,
• un plongeur 709, d'axe coaxial au cylindre fixe 706, reçu coaxialement à l'intérieur du cylindre fixe 706, configuré pour monter ou descendre, sans possibilité de rotation suivant l'axe du cylindre fixe 706, présentant à son extrémité supérieure une pluralité de pentes 710,
• un ballon pneumatique 711 reçu dans le cylindre fixe 706, à l'état dégonflé dans la première position PI' et la deuxième position PII' de la partie mobile 702 et à l'état gonflé pour actionner le plongeur à la montée dans la troisième position PIII' de ladite partie mobile 702.

For example, said actuator with three stable positions comprises:

• an actuator rod 703 integral with the movable part 702 integral with a cam 704, mounted to pivot relative to the axis of the rod, said cam having cam lugs 705
• a fixed cylinder 706, having sloping notches 707, 708, including first notches 707 receiving the cam lugs 705 in said first closed position PI 'of said mobile part 702 and second notches 708, lower level than the first notches, receiving the cam lugs in said second position PII 'said movable part 702, said first notches 707 and the second notches distributed alternately on the periphery of the fixed cylinder 706,
• a plunger 709, of axis coaxial with the fixed cylinder 706, received coaxially inside the fixed cylinder 706, configured to move up or down, without the possibility of rotation along the axis of the fixed cylinder 706, having at its upper end a plurality of slopes 710,
• a pneumatic balloon 711 received in the fixed cylinder 706, in the deflated state in the first position PI 'and the second position PII' of the movable part 702 and in the inflated state to actuate the plunger to rise in the third position PIII 'of said mobile part 702.

Advantageously, said actuator is configured so that at each up and down sequence of the plunger under the action of the pneumatic balloon 711, the cam pins 705 then received in the first notches 707 (or alternatively in said second notches 708) are carried away. on ascent by the plunger 709, the slopes 710 of the plunger causing, after disengaging the cam lugs 705 from the first notches (or alternatively the second notches), the partial pivoting of the cam and the cam lugs, and until the descent of the plunger 709) where said partially pivoted lugs engage with the second notches, or alternatively with said second notches, thus obtaining the passage from the second state E2 to the first state E1 of the water collection system, (or vice versa).

This sequence of the actuator making it possible to go from the first state E1 to the second state E2 of the collection system is described in detail below.
The figure 11 illustrates the actuator, the pneumatic balloon 711 in deflated state, and for which the cam lugs 705 of the cam 704 are received in the second notches 708 of the fixed cylinder defining the second position PII 'of the moving part 702 (first state E1 ).

The inflation of the pneumatic balloon 711 causes the rise of the plunger 709, the slopes of which 710 engage with the lugs 705 to cause the rise of the cam 704, and thus of the rod 703 integral with the movable part 702.

As soon as the cam lugs 705 escape the second notches 708, the cam lugs 705 slide and follow the slopes 710 of the plunger 709, causing the rotation of the cam 704 and the lugs by a fraction of a turn sufficient to position the lugs in position. right of the notches adjacent to the fixed cylinder, namely the first notches 707. In the deployed position of the actuator (balloon inflated figure 14 ), we obtain the third position PIII 'of the mobile part 702 ( figures 12 and 13 : third state E3).

When the pneumatic balloon 11 deflates, the plunger 709 descends, under the effect of gravity, until the cam lugs 705 engage with the first notches 707, the cam lugs 705 then following the slope of these notches 707 up to abutment of the lugs in these first notches ( figure 16 ) obtaining the first position PI 'of the moving part ( figure 15 : second state E2)

It will be understood that the following sequence of raising then lowering of the actuator makes it possible to pass from the second state E2 to the first state E1.

In general, the swimming pool has control means for actuating the pump system associated with the buffer tank (s) only when the collection system is in the first state E1 ( figure 6 ).

When the collection system is in the second state E2, and the platform is in the raised and closed Pf position, a set of internal nozzles associated with pumps makes it possible to stir the water confined in the main tank and the secondary tanks, and in order to avoid the presence of stagnant water.

• une vis 4, motorisée, sensiblement verticale reçue dans la double paroi du conduit de circulation 6,
• un écrou solidaire d'un support 5 saillant latéralement de la plateforme mobile 3 coopérant avec la vis sans fin.

The platform actuator system can include a plurality of actuators 4, 5, received in the double wall forming the circulation pipe 6, each actuator comprising a worm system having:

• a motorized screw 4, substantially vertical received in the double wall of the circulation duct 6,
• a nut integral with a support 5 projecting laterally from the mobile platform 3 cooperating with the worm.

This support 5 extends from the platform 3 from the bathing volume, crossing a vertical slot in the side wall 2, and into the duct 6 where it is provided with a nut cooperating with the screw 4.

The swimming pool, including the main tank, the buffer tanks 8, the side walls 2, the circulation duct, the mobile platform 3, the actuation systems 4,5, the water collection system 7, the hollow structure 11 is preferably a whole unit in one piece (self-supporting) which can be prefabricated, or even be delivered as a kit for assembly on site.

During installation, the swimming pool can be placed, buried, and in such a way that the peripheral floor S (the ground) to the swimming pool is substantially constructed at the height of the trampling surface of said collection system in said low position P1, and as illustrated in figures 6 and 8 .

Thanks to the hollow structure 11 which makes it possible to contain the water pressure and its self-supporting design, the swimming pool can be laid above ground, for example on a concrete slab: in such a case a peripheral floor to the pool, the height of which is substantially level with the mobile platform when in the raised and closed position.

Of course, other embodiments could have been considered without departing from the scope of the invention as defined by the claims below.

NOMENCLATURE

• 1. Swimming pool,
• 2. Side walls,
• 3. Mobile platform,
• 4. Endless screw (platform actuator),
• 5. Support with nut (platform actuator),
• 6. Circulation duct.
  • 60. Upper mouth system (Circulation duct 6),
  • 61. Lower mouth system (Circulation line 6),
• 7. Overflow water collection system,
  • 70. Receiving chute,
  • 71. Grid (Mode of realization of figures 1 at 8),
  • 72. Sealing and bypass device (embodiment of the figures 1 to 8 ),
  • 74. Plots of the shutter and bypass member (for shutting off the grille),
  • 75. Side faces,
  • 76. First openings of the chute (in communication with the circulation duct 6),
  • 78. Second opening of the chute (in communication with the buffer tanks 8),
  • 79. Shutter system (second openings),
  • 701. Static part (Mode of realization of figures 9 to 16 ),
  • 702. Movable part (Mode of realization of figures 9 to 16 )
  • 702a. Upper wall (movable part)
  • 702b. Side wall,
  • 702c. Side opening
  • 703. Actuator rod,
  • 704, 705. Cam and cam lugs,
  • 706. Fixed cylinder,
  • 707.708. First and second sloping notches (Fixed cylinder),
  • 709. Diver,
  • 710. Slopes (upper plunger end),
  • 711. Pneumatic balloon.
• 8. Buffer tanks,
• 9. Border,
• 10. Joint system (sealing between the coping and the platform in the raised closed position),
• 11. Hollow structure (receiving the buffer tanks),
  • 111, 112. Vertical side walls,
  • 113. Vertical partitions
• 12. Vertical boxes (hollow structure),
• V. Bathing volume.
• Pf. Raised and closed position of the mobile platform,
• P1. Low position of the collection system,
• P2. High position of the collection system
• PI, PII, PIII. First, second and third position of the shutter and bypass member (Embodiment of the figures 1 to 8 ),
• PI ', PII', PIII '. First, second and third position of said movable part (Embodiment of figures 9 to 16 ),
• E1. First state of the collection system (in the low position P1 of the system and the platform lowered according to the figure 6 or according to the figure 9 ) for the collection of overflow water and its routing to the buffer tank
• E2. Second state of said collection system (in the low position P1 of the system and the platform in the raised closed position according to the figure 8 , or according to the figure 15 ) for thermal insulation of the swimming pool.
• E3. Third state of said collection system (in the high position P2 of said collection system according to the figures 7a and 7b , or according to figures 12 and 13 ) for which the collection system forms an anti-overflow barrier and constitutes the upper mouth system of the circulation circuit through which the water enters when the mobile platform is raised, or the water comes out when the mobile platform is lowered .
• B. Perimeter barrier
• S. Perimeter floor

Claims (15)

1. Swimming pool (1) with a movable bottom, the swimming pool comprising:

   - side walls (2) and a movable platform (3) that together define the bathing volume of the swimming pool, the platform being capable of passing from at least one low submerged position to a raised position (Pf) in the open air, closing the bathing volume (V),

   - a system for actuating (4, 5) said movable platform (3) in order to raise or lower same,

   - a peripheral flow conduit (6), arranged at the periphery of the bathing volume and said side walls (2), said flow conduit (6) having an upper mouth system (60) and a lower mouth system (61) communicating with the bathing volume so as to make it possible that, under the action of the movable platform (3), the water flows through said flow conduit (6), on either side of the movable platform (3), from the upper mouth system (60) to the lower mouth system (61) during the raising of said movable platform (3), and from the lower mouth system (61) to the upper mouth system (60) during the lowering of said movable platform (3),

   characterised in that said swimming pool is an overflow pool comprising:

   - a main water tank containing the water of the overflowing bathing volume, receiving said side walls, the flow conduit and the movable platform,

   - one or more secondary tanks for collecting the overflowing water, with a buffer function, called buffer tanks (8),

   - a pump system linking the buffer tanks (8) and continuously supplying the overflowing bathing volume from the water from the buffer tanks (8),

   and wherein said swimming pool comprising a water collection system (7), extending at the periphery of the bathing volume and suitable for collecting the water overflowing at the periphery of the bathing volume,
   and wherein said overflowing water collection system is at least partially movable, being capable of passing:

   - from a low position (P1) for which the water collection system, on the one hand, constitutes an overflow defining the height of the overflow, ensuring the receiving of water when the swimming pool functions as an overflow, the movable platform (3) thus static in at least one submerged low position, in a first state (E1) of said collection system (7) enabling the flow of the collected water to the buffer tank(s) (8), and on the other hand, constitutes a trampling substantially at the level of the movable platform thus in a raised position (Pf) and closing the bathing volume, in particular in a second state of said collection system (E2),

   - to a high position (P2), situated above the level of the raised position (Pf) and of closing the movable platform (3), high position for which the water collection system (7) constitutes a peripheral anti-overflow barrier (B) during movements to raise or lower the movable platform (3), in a third state (E3) of said collection system which thus constitutes the upper mouth system (60) of the flow circuit (6) by which the water enters during the raising of the movable platform (3), or the water emerges during the lowering of the movable platform (3).
2. Swimming pool according to claim 1, wherein said water flow conduit (6) is peripheral, defined by the interspace of a double wall formed between a sealed outer casing of the swimming pool defining the main water tank and said side walls (2), inside the sealed outer casing, said side walls (2) being submerged over the whole height at least during the overflow operation.
3. Swimming pool according to claim 2, wherein the water collection system (7) is situated outside of the double wall forming the flow conduit (6), the swimming pool having a peripheral edge (9), covering the interspace of the double wall, said edge being intended to be trampled on,
   and wherein:

   - the upper surface of the edge (9) is situated up to the trampling surface of the water collection system (7), in said low position (P1) of said collection system and such that the trampling surfaces belonging respectively to the movable platform (3) in a raised position for closing (Pf) the movable platform (3), at the edge and at the collection system extending continuously,

   - said edge (9) is configured such that the overflowing water of the bathing volume flows above the edge up to the collection system (7) during the operation of the overflow pool, or also, during raising movements of the movable platform (3).
4. Swimming pool according to one of claims 2 to 3, wherein the buffer tanks (8) are received at the periphery, outside of the double wall forming the flow conduit (6), received in a hollow structure (11), the water collection system (7) being situated just under and above the hollow structure, positioned laterally at the flow conduit (6).
5. Swimming pool according to claim 4, wherein the hollow structure (11), extending over the whole periphery of the double wall forming the flow conduit (6), forming a plurality of vertical chambers (12), distributed over said periphery, said buffer tanks (8) received respectively in said vertical chambers.
6. Swimming pool according to claim 5, wherein a thermal insulator, such as synthetic foam fills the voids of the hollow structure (11) and insulates each buffer tank (8) through the outside, the insulator received filling the interspace between the buffer tank (8) and the inner walls of the chamber (12).
7. Swimming pool according to one of claims 3 to 6, wherein a seal system (10) ensures the sealed closing between the movable platform (3) and the edge (9), in said raised position (Pf) for closing the movable platform.
8. Swimming pool according to one of claims 3 to 7, wherein the overflow water collection system (7) comprises:

   - a duct (70) for receiving water, with a U-shaped cross-section, comprising a bottom wall, and two projecting side walls, extending on either side of the bottom wall, defining an upper opening of the duct for receiving water, the inner side wall situated on the side of the bathing volume having first openings, in particular side openings (76) in communication with the flow conduit (6), and second openings (78), in particular bottom openings, in communication with the buffer tanks,

   - a grille (71), substantially horizontal, covering the upper opening of the duct for receiving water, and of which the upper surface constitutes the trampling surface,

   - a blocking and bypass member (72), inside the duct and movable with respect to the duct (70) which could take three positions:

   - a first high position (PI) for which the blocking and bypass member (72) blocks the grille in the low position (P1) of the water collection system (7) thus in said second state (E2) for which the movable platform (3) is in a raised position (Pf) and position for closing the swimming pool,

   - a second position (PII), lower than the first position for which the blocking and bypass member (72) releases the openings of the grille (71), in the low position (P1) of the water collection system, for which the movable platform is static, in a submerged low position, enabling the overflow water to pass through the grille (71) and to fall into the duct (70) for receiving water, the blocking and bypass member (72) blocking the first openings (76), in particular side openings of the duct, the water collected in the duct being evacuated through second openings (78) to the buffer tanks (8),

   - a third position (PIII), higher with respect to the first and second positions, for which the blocking and bypass member (72) removes and supports the grille (71) above the level of the raised position (Pf) for closing the platform, releasing the first openings (76) of the duct for receiving water, constituting the high position (P2) of the water collection system (7), the blocking and bypass member constituting in this high position, said peripheral anti-overflow barrier (B), the water thrust by movements of the platform flowing through said flow conduit (6), through first openings (76) of the duct for receiving water.
9. Swimming pool according to claim 8, comprising a blocking system (79), inside the duct, closing the second openings (78) when the collection system (7) is in a high position (P2) and such that the water flows through first openings (76) and opening the second openings (78) in the first state (E1) of the collection system when the collection system is in a low position (P1) and such that the overflow water collected in the duct is directed to the buffer tanks (8).
10. Swimming pool according to one of claims 2 to 9, wherein the system for actuating the platform comprising a plurality of actuators (4, 5) received in the double wall forming the flow conduit (6), each actuator comprising:

    - a motorised worm screw (4), substantially vertical, received in the double wall,

    - a nut integral with a support (5) projecting laterally from the movable platform (3) engaging with the worm screw.
11. Swimming pool according to claim 3, taken individually or in combination with one of claims 4 to 7, wherein the overflow water collection system (7) comprises:

    - a duct (70) for receiving water, with a U-shaped cross-section, comprising a bottom wall, and two side walls, extending on either side of the bottom wall, the inner side wall situated on the side of the bathing volume having first openings (76), in particular side openings, in communication with the flow conduit (6), and second openings (78), in particular bottom openings, in communication with the buffer tanks (8),

    - a static portion (701), covering the duct (70), forming a trampling surface substantially at the level of the movable platform thus in a raised position (Pf) and for closing the bathing volume, said static portion (701) defining said low position (P1) of said collection system, an interspace (It) separating said static portion (701) of the edge (9) forming an upper opening for the duct (70),

    - a movable portion (702) inside the duct (70) and movable with respect to the duct (70) and to said static portion (701) which could take three positions:

    - a first blocking position (PI') for which said movable portion (702) blocks the interspace between the edge (9) and said static portion (701), the water collection system (7) thus in said second state (E2) for which the movable platform (3) is in a raised position (Pf) and for closing the swimming pool, the upper surface of the movable portion (702) extending the trampling surface of said static portion (701),

    - a second position (PII'), lower than the first position for which the movable portion (702) opens the duct (70) for receiving water, enabling the overflow water to fall into the duct (70) for receiving water, in said low position (P1) of the water collection system thus in the first state (E1) for which the movable platform is static, in a submerged low position, the movable portion (702) blocking the first openings (76), in particular side openings of the duct, the water collected in the duct being evacuated through second openings (78) to the buffer tanks (8),

    - a third position (PIII'), higher with respect to the first and second positions, for which said movable portion (702) is arranged above the level of the raised position (Pf) of the platform, releasing the first openings (76) of the duct for receiving water, forming the high position (P2) of the water collection system (7), said movable portion (702) forming in this high position, said peripheral anti-overflow barrier (B) and said upper mouth system (60), the water thrust by movements of the platform flowing through said flow conduit (6), through first openings (76) of the duct for receiving water.
12. Swimming pool according to claim 11, comprising at least one actuator with three stable positions, configured separately for controlling the movable portion (702) according to said first position (PI'), said second position (PII') and said third position (PIII').
13. Swimming pool according to claim 12, wherein said actuator with three stable positions comprises:

    - an actuator rod (703) integral with the movable portion (702) integral with a cam (704), mounted pivoting with respect to the axis of the rod, said cam having cam lugs (705),

    - a fixed cylinder (706) having sloped notches (707, 708), including first notches (707) receiving the cam lugs (705) in said first position for blocking (PI') said movable position (702) and second notches (708), at a lower level than the first notches, receiving the cam lugs in said second position, said movable portion (PII'), said first notches (707) and the second notches distributed alternately over the periphery of the fixed cylinder (706),

    - a plunger (709), with an axis coaxial to the fixed cylinder (706), received coaxially inside the fixed cylinder (706), configured to raise or lower, without the possibility of rotation about the axis of the fixed cylinder (706), having at the upper end thereof a plurality of slopes (710),

    - an inflatable ball (711) received in the fixed cylinder (706), in the deflated state in the first position (PI') and the second position (PII') of the movable portion (702) and in the inflated state to actuate the plunger to raise in the third position (PIII') of said movable portion (702),

    and wherein said actuator is configured such that at each raising and lowering sequence of the plunger, under the action of the inflatable ball (711), the cam lugs (705) thus received in the first notches (707) or alternatively said second notches (708) are removed at the raising by the plunger (709), the slopes (710) of the plunger causing after release of the cam lugs (705) of the first notches or alternatively the second notches, the partial pivoting of the cam and cam lugs, and until the lowering of the plunger (709) where said partially pivoted lugs are engaged with the second notches (708), or alternatively said first notches (707), thus obtaining the passage from the second state (E2) to the first state (E1) of the water collection system, or conversely.
14. Swimming pool according to claim 4, wherein including the main tank, the buffer tanks (8), the side walls (2), the flow conduit (6), the movable platform (3), the actuation systems (4, 5), the water collection system (7), the hollow structure (11) is a one-piece self-supporting assembly.
15. Swimming pool according to one of claims 1 to 14 buried such that the floor peripheral (S) to the swimming pool is substantially constructed at the height of the trampling surface of said collection system in said low position (P1) of said collection system.

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