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EP2235298A2 - Apparatus for cleaning submerged surface with eddy filtration - Google Patents

Apparatus for cleaning submerged surface with eddy filtration

Info

Publication number
EP2235298A2
EP2235298A2 EP08865884A EP08865884A EP2235298A2 EP 2235298 A2 EP2235298 A2 EP 2235298A2 EP 08865884 A EP08865884 A EP 08865884A EP 08865884 A EP08865884 A EP 08865884A EP 2235298 A2 EP2235298 A2 EP 2235298A2
Authority
EP
European Patent Office
Prior art keywords
liquid
filtering device
hollow body
outlet
filtration
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP08865884A
Other languages
German (de)
French (fr)
Other versions
EP2235298B1 (en
Inventor
Philippe Pichon
Emmanuel Mastio
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zodiac Pool Care Europe SAS
Original Assignee
Zodiac Pool Care Europe SAS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zodiac Pool Care Europe SAS filed Critical Zodiac Pool Care Europe SAS
Publication of EP2235298A2 publication Critical patent/EP2235298A2/en
Application granted granted Critical
Publication of EP2235298B1 publication Critical patent/EP2235298B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H4/00—Swimming or splash baths or pools
    • E04H4/14—Parts, details or accessories not otherwise provided for
    • E04H4/16—Parts, details or accessories not otherwise provided for specially adapted for cleaning
    • E04H4/1654—Self-propelled cleaners

Definitions

  • the invention relates to a surface cleaner device immersed in a liquid, in particular a swimming pool.
  • Some known pool cleaner devices include:
  • a hydraulic circuit adapted to ensure a circulation of liquid between each inlet and each outlet through a filtering device housed in the filtration chamber, under the effect of a pumping device.
  • the hydraulic circuit extends in the filtration chamber vertically from bottom to top, and in the front and the rear of a pump motor that is arranged vertically, usually in the center of the hollow body.
  • the flow of liquid between the inlet and the outlet follows a substantially straight path between the base of the hollow body towards the outlet of the hollow body. It is considered that this provision promotes the efficiency of the pump by minimizing pressure losses and optimizing the flow and filtration.
  • the inventors have found that such devices do not exhibit stable filtration performance over time, especially when cleaning a submerged surface heavily congested with debris.
  • the periods of service of the apparatus between which cleaning must be performed are relatively brief if the surface is very crowded with debris and especially very variable depending on the nature of the waste recovered, so that they vary randomly for the user. For example if the basin is clean but the device sucks a single sheet of large size, this sheet is likely to substantially close the filter device, requiring cleaning of the filter device.
  • the filtration and suction performance of these known devices can drop sharply, randomly from the point of view of the user, and while the amount of debris recovered is much lower than that corresponding to the capacity of the device. filtering.
  • a hatch access to the filtration device must be provided to allow the disassembly of the latter for cleaning.
  • the access hatch to the filtration device must be located at the base of the hollow body, the liquid inlets then necessarily being equipped with non-return devices such as valves.
  • this provision is not convenient for the user who must previously reverse the device, which can damage it and otherwise cause unpleasant unwanted flow.
  • the invention therefore aims to provide a submerged surface cleaner device whose performance / cost ratio is greatly improved over that of previous devices. More particularly, the invention aims to provide such a device whose cost can be substantially lowered, for equivalent performance, or even greater than those of known devices.
  • the invention also aims at providing such an apparatus whose filtration performance is stable over time, regardless of the nature of the debris, including during the cleaning of a submerged surface heavily congested with debris, especially bulky debris with a footprint equivalent to a piece of 2 euros or sheets.
  • the invention also aims at providing such an apparatus that may have an access door located on the top, but with a filtration device having a large debris storage volume and a simple hydraulic circuit.
  • the invention relates to a submerged surface cleaning apparatus comprising:
  • a hydraulic circuit adapted to ensure a circulation of liquid between each inlet and each outlet, through a filtering device comprising filtering walls and housed in the filtration chamber, under the effect of a pumping device, characterized in that 'He understands :
  • the rear outlet at least one liquid outlet out of the hollow body, called the rear outlet, shifted rearwardly in the longitudinal direction of each liquid inlet with which it is in communication via the hydraulic circuit
  • a rigid wall called a turbulent wall, arranged in the filtering device, upstream of the filtering walls, and extending in a direction that is not parallel to at least one direction connecting a liquid inlet and a rear outlet, so as to form an obstacle to the flow of liquid from this liquid inlet to this liquid outlet generating a vortex flow of liquid in the filter device downstream of this rigid wall.
  • the inventors have indeed found that the arrangement of a rigid wall on the path of the liquid between a liquid inlet and a rear outlet liquid, which at first sight may seem unfavorable, both from the point of view of the pressure drop and from the point of view of the quality of the suction, actually allows, when this wall is arranged upstream of the filtering walls, to improve the filtration performance by generating a vortex circulation within the filtering device which permanently keeps the debris suspended in the filtering device, thus avoiding clogging of the filtering walls of the filtering device, and finally favoring the hydrodynamic performance of the filter device and the hydraulic circuit.
  • the pressure losses induced by the arrangement of a rigid wall on the liquid flow path are compensated by maintaining the initial permeability of the filtering walls of the filtering device.
  • the periods of service between which the device must be cleaned are longer and especially of substantially constant periods, to the benefit of greater comfort of use.
  • this turbulent wall also acts as a non-return wall so that the debris that has passed this wall can no longer emerge through the liquid inlet, even when the pumping device is stopped, which eliminates the need to provide valves or other non-return devices on the liquid inlets.
  • this arrangement makes it possible to design the apparatus so as to directly recover at least a portion of the residual hydraulic energy in the output stream to participate in driving the apparatus.
  • an apparatus can be provided with a pump motor - in particular an electric pump motor - and a drive device - notably comprising at least one electric drive motor - whose power is reduced, and therefore consumption and reduced costs.
  • a pump motor in particular an electric pump motor - and a drive device - notably comprising at least one electric drive motor - whose power is reduced, and therefore consumption and reduced costs.
  • This also results in a lower overall volume and a lower weight of the apparatus which, in addition to the economy achieved, is an important advantage for the user, particularly in terms of handling, transport and storage of the apparatus. .
  • the turbulent wall can be arranged at any point of the device filtering, upstream of the filter walls, that is to say in the dirty part of the hydraulic circuit. In particular, it may extend from an upper or lower portion of the filter device. Nevertheless, preferably, this wall extends in the vicinity of a liquid inlet, downstream of this liquid inlet.
  • the filtering device comprises a front opening arranged opposite an upper end of a liquid inlet duct extending from at least one liquid inlet, this front opening being in communication with each liquid inlet and a filter bag and debris recovery defined by filter walls and which extends to each rear outlet, said inlet conduit having a transverse rear wall which forms said turbulent wall.
  • the turbulent wall formed by the transverse rear wall of the inlet duct acts as a non-return wall and prevents debris from exiting the filtration bag and debris recovery to return to the immersed surface through the front opening.
  • this wall may extend in a generally vertical plane between an area behind the liquid inlets and the upper front opening of the filter bag and debris recovery.
  • this non-return wall extends over a major part of the height of the inlet duct, in particular over more than 75% of the height of the inlet duct.
  • said inlet duct extends in a direction, called the liquid inlet direction, forming with at least one mean direction passing through the front opening and a rear outlet in communication with this front opening. , an acute angle, so as to promote the turbulence of the liquid in the filtration bag and debris recovery.
  • said bag for filtering and recovering debris extends immediately downstream of said opening before and under the latter.
  • each rear exit is located under said front opening of the filter device.
  • the turbulent wall has an upper end which defines the lower end of the opening of the filtering device, and defines a high point with respect to each rear outlet.
  • the distance between the upper end of the turbulent wall and the immersed surface is greater than each distance between each rear outlet and the immersed surface.
  • the turbulent wall extends over more than 75% of the maximum height of the filtration and debris recovery bag.
  • a turbulent wall allows the generation in the filtration bag of a vortex circulation whose vortex of fluid extends throughout the filtration bag so that most of the debris present in the filtration bag is in permanent suspension in the pocket as the pumping device is in operation, which prevents clogging of the filter walls by the debris, and finally promotes the hydrodynamic performance of the filter device and the hydraulic circuit.
  • the filtration bag and debris recovery can be of all types.
  • said bag for filtering and recovering debris comprises a rigid frame and a filtering sheet extending into openings formed by the rigid framework.
  • the hydraulic circuit comprises at least one axial pumping helix disposed downstream of the filtering device so as to generate a flow of liquid in a liquid outlet, said axial pumping propeller being coupled to a driving motor disposed under a rear portion of the filter device.
  • the pumping motor is preferably arranged under the inclined lower wall of the filtration and debris collection bag.
  • said axial pumping propeller is disposed in a cylindrical fairing forming the liquid outlet.
  • an apparatus further comprises an access hatch for the filtration device, arranged on an outer wall of the hollow body and adapted to allow the disassembly and extraction of the filter device from the hollow body in order to his cleaning.
  • This access hatch can be arranged on any wall of the hollow body of the apparatus, in particular on a front wall or an upper wall.
  • said access door is provided on the upper wall of the hollow body.
  • the filtering device comprises ribs extending laterally on each side of the filtering device and having a shape and dimensions shaped and conjugate to the shape and dimensions of integral grooves of the hollow body so as to ability to slide the filter device along the grooves to extract the filtering device of the hollow body by said access door.
  • the extraction of the filtering device of the hollow body by the upper hatch results from a displacement in translation of the filtering device along the grooves of the hollow body.
  • a user can easily remove the filter device from the hollow body for example to clean it.
  • the invention further relates to an apparatus for cleaning a submerged surface characterized in combination by all or some of the characteristics mentioned above or below.
  • FIG. 1 is a schematic perspective view of a cleaning apparatus according to one embodiment of the invention
  • FIG. 2 is a schematic rear view of a cleaning apparatus according to one embodiment of the invention.
  • FIG. 3 is a schematic sectional view of a cleaning apparatus according to one embodiment of the invention.
  • FIG. 4 is a schematic perspective view of a filtering device according to one embodiment of the invention.
  • FIG. 5 is a simplified sectional schematic view of FIG. 3 showing the apparatus in operation on a submerged surface
  • FIG. 6 is a schematic perspective view of a casing of an apparatus according to an embodiment of FIG. the invention.
  • each part of the cleaning apparatus is described as arranged when the apparatus is in normal movement on a surface. horizontal submerged according to a privileged direction of advancement, with respect to which the front and the rear of the apparatus are defined.
  • An apparatus comprises a hollow body 1 and rolling bodies 2, 3, 4 for guiding and driving the hollow body 1 on a surface immersed in at least one privileged direction of advancement and in a main direction of advancement, said longitudinal direction, parallel to the immersed surface.
  • This hollow body 1 is formed mainly of a concave casing delimiting a main enclosure.
  • This concave casing is for example made by molding or rotational molding.
  • This housing is preferably made of a thermoplastic material, such as polyethylene, polypropylene, ABS, PMMA or any equivalent material.
  • This hollow body 1 has, as shown in FIG. 6, a central chamber 35 adapted to receive a filtration chamber.
  • This central chamber is delimited by a lower wall extending in a substantially horizontal plane; by side walls 36 extending generally in vertical planes; by a front wall 37 extending generally in a vertical plane, orthogonal to the planes of the vertical side walls 36; and a rear wall 38 extending generally in a vertical plane orthogonal to the planes of the vertical side walls 36.
  • the lower wall has an opening extending transversely adjacent the wall 37 before such that liquid can enter the central chamber through this lower transverse opening. This opening forms an inlet 9 of liquid in the hollow body 1.
  • the rear wall 38 includes a cylindrical opening forming a liquid outlet 10 out of the hollow body 1.
  • This liquid outlet 10 formed in the rear wall 38 of the casing is longitudinally offset from the liquid inlet 9 formed in the bottom wall.
  • this liquid outlet 10 is arranged in the upper part of the casing so that it is also vertically offset from the inlet 9 of liquid.
  • this central chamber, this liquid inlet 9 and this liquid outlet 10 form a chamber 8. filtration.
  • This filtration chamber 8 further comprises a hydraulic circuit adapted to ensure a flow of liquid between the inlet 9 of liquid and the outlet 10 of liquid through a filtering device 11.
  • the central chamber of the hollow body 1 is adapted to receive a filtering device 11.
  • the filtering device 11 is arranged between the inlet 9 of liquid and the outlet 10 of liquid.
  • this filtering device 11 comprises an opening 54 before in communication with the inlet 9 of liquid and a pocket 55 for filtering and recovering debris.
  • This pocket 55 extends between the opening 54 before and the outlet 10 of liquid.
  • the filtering device 11 further comprises a liquid inlet conduit 15 extending from the liquid inlet 9 to the opening 54 before connected to the bag 55 for filtering and recovering debris.
  • the front opening 54 is arranged facing the upper end of this liquid inlet duct 15 extending from the inlet 9 of liquid.
  • This liquid inlet duct 15 has a rear wall, called a turbulent wall 16, arranged between the liquid inlet and the bag 55 for filtering and recovering debris.
  • the bag 55 for filtering and recovering debris is formed of a rigid frame 26 and a filtering sheet extending into openings in this rigid framework. It thus comprises, as shown in Figure 4, walls 56, 57, 58, 59 filtering.
  • the filtering device 11 is therefore self-supporting and can be easily manipulated by a user.
  • the turbulent wall 16 generates turbulence in the pocket 55 for filtering and collecting debris upstream of the filter walls 56, 57, 58, 59.
  • This wall 16 has, as shown in particular in Figure 3, a portion 65 extreme upper curved.
  • the turbulent wall 16 extends transversely between the side walls 58, 59 of the pocket 55 for filtering and collecting debris.
  • the turbulent wall 16 extends over a major part of the height of the pocket 55 for filtering and recovering debris.
  • the turbulent wall 16 extends globally in a plane substantially perpendicular to the submerged surface on which the apparatus is moving. This turbulent wall 16 extends from the base of the filter device 11 away from the immersed surface to the front opening defined between an upper edge of this turbulent wall 16 and the upper wall 57 of the pocket 55 of filtration which extends generally in a plane parallel to the immersed surface.
  • the inlet duct 15 extends in a direction, referred to as the liquid inlet direction 63, and has, with the mean direction 62 connecting the front opening to the liquid outlet, an angle ⁇ acute, so as to promote the turbulence of the liquid in the pocket 55 filtration and recovery of debris.
  • the angle ⁇ is of the order of 80 °, which allows to create significant turbulence while maintaining a large liquid flow.
  • This turbulence keeps the debris suspended in the pocket 55 for filtering and recovering debris, which makes it possible to prevent clogging of the filter walls 56, 57, 58 and 59 of the filtering device 11 with this debris.
  • the bag 55 for filtering and recovering debris has a decreasing transverse cross section from the front opening 54 towards the liquid outlet 10 so as to form a convergent tangential filtration chamber for the liquid flowing between the opening 54 beforehand. and the liquid outlet 10. This tangential filtration also helps to prevent clogging of the walls 56, 57, 58 and 59 filtering the filter device 11 by debris sucked by the device.
  • the bag 55 for filtering and recovering debris has a bottom filter wall 56 inclined backwards and upwards from a bottom portion of the bag 55.
  • This filter pocket 55 further comprises a generally horizontal upper wall 57 and extending from the front opening 54 to the rear.
  • This filtering upper wall 57 is connected to the filtering lower wall 56 by a portion 61 upper extreme rear curve.
  • the apparatus also includes, as shown in the figure 1, a hatch 6 access to this device 11 filtering.
  • This access hatch 6 forms an upper wall of the hollow body 1 and covers the latter.
  • this hatch 6 is formed on the top of the device so that a user of the device can easily open the hatch 6 and extract the filter device 11.
  • the access hatch 6 is articulated to the body 1 of the apparatus by hinges 23 arranged at the rear of the apparatus.
  • the filtering device 11 is a device mounted in the central chamber 1 of the hollow body 1 in the manner of a drawer.
  • the rigid frame 26 of the filtering device 11 has two ribs 25 extending laterally on each side of the filtering device 11. These ribs 25 have shapes and dimensions shaped and conjugate to the shapes and dimensions of grooves integral with the hollow body 1. These grooves integral with the hollow body 1 extend vertically along the inner faces of the vertical side walls of the hollow body 1.
  • the ribs 25 of the filtering device 11 are therefore adapted to cooperate with the grooves of the hollow body 1 of the apparatus.
  • the extraction of the filtering device 11 results from a displacement in translation of the filtering device 11 along the grooves of the hollow body 1.
  • a user can easily remove the filtering device 11 from the hollow body 1 for example to clean it.
  • a user can easily reintroduce the filtering device 11 into the hollow body 1 by orienting the filtering device 11 so that the ribs 25 of the filtering device 11 are facing the grooves of the body hollow, and then sliding the filtering device 11 in the hollow body 1.
  • the filtering device 1 1 further comprises a handle 28 formed on an upper portion of the filtering device 11 so as to facilitate the handling of the filtering device 11.
  • a user can easily assemble / disassemble the filtering device 11 via this handle 28 when the device is out of the liquid and rests on a horizontal surface.
  • an apparatus comprises a motorized liquid pumping device comprising an electric pumping motor 12 having a rotating motor shaft 13 coupled to a pumping propeller 14 interposed in the circuit hydraulic to generate a flow of liquid between the liquid inlet 9 and the liquid outlet 10.
  • the liquid outlet 10 is directly opposite the pumping propeller so that the liquid flows out of the hollow body 1 through the liquid outlet 10 in a direction corresponding to the flow of liquid generated by the pumping propeller. this flow having a speed oriented along the axis 51 of rotation of the propeller 14.
  • the pumping propeller 14 has an orientation for generating a liquid flow with a horizontal component to the rear.
  • the pumping propeller 14 interposed in the hydraulic circuit between the liquid inlet 9 and the liquid outlet 10 has an inclined axis of rotation forming with the said longitudinal direction and with the theoretical rolling plane 50 a different angle ⁇ 90 °.
  • This propeller 14 is rotated by an electric pumping motor 12 which preferably has a rotating motor shaft 13 parallel to the axis of rotation of the propeller 14.
  • the pumping motor is disposed under the hydraulic circuit, entirely outside this hydraulic circuit, so that the filtering device 11 of the hydraulic circuit can be removed from the apparatus by the top of the hydraulic circuit. as previously mentioned, without being hindered by the pumping motor.
  • Only the pumping propeller 14 is arranged in the hydraulic circuit so as to ensure the flow of liquid.
  • This pumping propeller 14 is arranged at the rear of the apparatus, close to the liquid outlet 10. In other words, the pump propeller 14 and the liquid outlet 10 form the end portion of the hydraulic circuit.
  • the rotary shaft 13 of the electric pump motor 12 passes through an inclined lower wall defining the hydraulic circuit.
  • the seal is provided by an O-ring 18.
  • the electric pump motor is a low voltage motor. It can be powered by an external power supply to the device via an electric cable, not shown in the figures, which is connected to the device at an input zone 19 of the electrical cable in the apparatus, as shown in FIG.
  • FIG. 5 shows a representation of the circulation of liquid in the body 1 hollow of the device. This circulation is shown diagrammatically in FIG. 5 by arrows 66.
  • Liquid enters the hollow body 1 via the liquid inlet 9 arranged under the apparatus. This liquid passes into the liquid inlet duct 15 to reach the filtering device 11. Turbulence is generated by the passage in the vicinity of the turbulent wall 16, keeping the debris 60 in suspension.
  • This filter device 1 1 passes the liquid through the filter cloth and retains the solid debris 60. The filtered liquid then reaches the liquid outlet 10 and is ejected at the rear of the apparatus, in the basin from which it comes.
  • FIG. 5 also includes a representation of the vortex circulation generated by the turbulent wall 16 immediately downstream of the turbulent wall 16.
  • the liquid outlet 10 facing the pumping propeller 14 the liquid flows out of the apparatus through this outlet with a speed V oriented along the axis 51 of the pumping propeller 14 and having a component longitudinally rearward which induces by reaction forces, whose resultant has a longitudinal component of forward drive which participates in driving the apparatus on the immersed surface.
  • the orientation of the hydraulic reaction force created by this output flow, and therefore the amplitude of its longitudinal component, depend on the inclination, with respect to the theoretical plane of rolling, of the axis 51 of rotation of the the propeller and the liquid outlet 10.
  • this inclination is between 15 ° and 45 °.
  • the rolling members for guiding and driving the apparatus comprise a front axle comprising front-wheel drive wheels, one on each side, and a rear axle comprising 3 non-drive rear wheels, one on each side.
  • the apparatus comprises brushes 4 arranged at the front of the apparatus. These brushes 4 are intended to ensure a brushing of the immersed surface and to move the brushed debris towards the rear of the apparatus in the direction of the inlet 9 of liquid arranged under the device.
  • the apparatus further comprises at least one electric motor for driving the front 2-wheel drive wheels.
  • the apparatus comprises two drive motors, one on each side, respectively for the independent drive of each of the front wheels.
  • each front wheel 2 has an internal toothing 5 cooperating with a pinion driven by the corresponding drive motor 20.
  • the apparatus comprises two coaxial front brushes 4.
  • Each brush 4 is adapted to be rotated about an axis extending in a direction, said transverse direction, perpendicular to the longitudinal direction.
  • Each brush 4 comprises a plurality of fins 41 extending radially from a brush shaft forming the axis of rotation of the brush 4.
  • the fins 41 are for example made of rubber made of a resistant plastic material.
  • the brushes 4 are preferably also rotated from at least one electric drive motor 2 of the front wheels 2 via a gear system.
  • the rolling members consist of the front wheels 2 driving, rear wheels 3 non-driving and brushes 4 which participate in driving and guiding the apparatus on the immersed surface.
  • the rolling members 2, 3, 4 have areas intended to come into contact with the immersed surface which are coplanar and define a theoretical rolling plane 50.
  • the longitudinal direction of advancement of the apparatus is parallel to this theoretical plane of rolling.
  • the front wheels 2 preferably have a diameter of between 100 mm and 500 mm, in particular between 150 mm and 250 mm.
  • the front wheels 2 have a diameter of the order of 200mm. In this way, these front wheels 2 facilitate the crossing of obstacles and have improved motor skills.
  • their peripheral tread is formed or coated with a non-slip material
  • the apparatus also comprises a maneuvering handle 7 allowing a user to wear the device to immerse in a liquid and out of the latter.
  • This handle 7 is preferably arranged opposite the liquid outlet 10 so that when the hollow body 1 is suspended by this handle, the apparatus switches spontaneously under the effect of gravity in a position in which the outlet 10 liquid is located under the inlet 9 of liquid, which allows a drain of the device.
  • the appliance is moved from the cleaning position to the emptying position, the debris sucked by the appliance is held in the filtering device and is not likely to come out of the appliance.
  • the filtering device 11 may have several turbulent walls arranged in the filtering device 11.
  • the design and design of the device, including its hydraulic circuit, are subject to infinite variants.
  • the invention applies to a bidirectional apparatus capable of retrograde movement.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Cleaning In General (AREA)
  • Cleaning By Liquid Or Steam (AREA)
  • Filtration Of Liquid (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)

Abstract

Detailed is a device for cleaning an immersed surface, including a body and members for driving the body over the immersed surface, a filtration chamber which has a liquid inlet in the body located at the base of the body, at least one liquid outlet out of the body, a hydraulic circuit for flow of liquid between the inlet and the outlet through a filtering device, wherein it includes: at least one rear outlet, and a rigid wall which is arranged in the filtering device and which extends in a direction which is non-parallel with at least one direction which connects an inlet and an outlet in order to form an obstacle to the flow of liquid from this inlet to this outlet which brings about a swirling flow of liquid in the filtering device downstream of this rigid wall.

Description

APPAREIL NETTOYEUR DE SURFACE IMMERGÉE À FILTRATION IMMERSE SURFACE CLEANING APPARATUS WITH FILTRATION
TURBULENTETURBULENT
L'invention concerne un appareil nettoyeur de surface immergée dans un liquide, en particulier de piscine.The invention relates to a surface cleaner device immersed in a liquid, in particular a swimming pool.
Certains appareils nettoyeurs de piscine connus comprennent :Some known pool cleaner devices include:
- un corps creux et des organes de guidage et d'entraînement dudit corps sur la surface immergée dans un sens d'avancement privilégié et selon une direction principale d'avancement, dite direction longitudinale, - une chambre de filtration ménagée dans ledit corps creux et présentant :a hollow body and guiding and driving members of said body on the submerged surface in a preferred direction of advancement and in a main direction of advancement, referred to as the longitudinal direction, a filtration chamber formed in said hollow body and presenting:
. au moins une entrée de liquide située à la base et à l'avant dudit corps creux,. at least one liquid inlet located at the base and at the front of said hollow body,
. au moins une sortie de liquide hors du corps creux située à distance de la base du corps creux,. at least one liquid outlet out of the hollow body located at a distance from the base of the hollow body,
. un circuit hydraulique adapté pour assurer une circulation de liquide entre chaque entrée et chaque sortie à travers un dispositif de filtrage logé dans la chambre de filtration, sous l'effet d'un dispositif de pompage.. a hydraulic circuit adapted to ensure a circulation of liquid between each inlet and each outlet through a filtering device housed in the filtration chamber, under the effect of a pumping device.
Dans ces appareils connus (cf. par exemple FR 2 567 552, WO 0 250 388, ...), le circuit hydraulique s'étend dans la chambre de filtration verticalement de bas en haut, et à l'avant et à l'arrière d'un moteur de pompage qui est disposé verticalement, généralement au centre du corps creux. Dans de tels appareils, la circulation de liquide entre l'entrée et la sortie suit une trajectoire sensiblement rectiligne entre la base du corps creux vers la sortie du corps creux. Il est considéré en effet que cette disposition favorise l'efficacité de la pompe en minimisant les pertes de charge et en optimisant le débit et la filtration.In these known apparatuses (see for example FR 2 567 552, WO 0 250 388, ...), the hydraulic circuit extends in the filtration chamber vertically from bottom to top, and in the front and the rear of a pump motor that is arranged vertically, usually in the center of the hollow body. In such devices, the flow of liquid between the inlet and the outlet follows a substantially straight path between the base of the hollow body towards the outlet of the hollow body. It is considered that this provision promotes the efficiency of the pump by minimizing pressure losses and optimizing the flow and filtration.
Or, les inventeurs ont maintenant déterminé que cette disposition est en fait extrêmement défavorable du point de vue des performances de l'appareil. En effet, elle induit un encombrement vertical relativement important, qui se traduit en particulier par une résistance hydraulique à l'avancement plus élevée, et donc une consommation énergétique plus importante, un poids et un encombrement plus importants, et donc, finalement, à performances équivalentes, un coût élevé.However, the inventors have now determined that this arrangement is actually extremely unfavorable from the point of view of the performance of the device. Indeed, it induces a relatively large vertical space, which is reflected in particular by a higher hydraulic resistance to progress, and therefore a higher energy consumption, weight and bulk more important, and therefore, ultimately, with equivalent performance, a high cost.
De plus, les inventeurs ont constaté que de tels appareils ne présentent pas des performances de filtration stables au cours du temps, notamment lors du nettoyage d'une surface immergée fortement encombrée de débris. En particulier, les périodes de service de l'appareil entre lesquelles un nettoyage doit être effectué sont relativement brèves si la surface est très encombrée de débris et surtout très variables selon la nature des déchets récupérés, de sorte qu'elles varient de manière aléatoire pour l'utilisateur. Par exemple si le bassin est propre mais que l'appareil aspire une seule feuille de grande dimension, cette feuille est susceptible d'obturer sensiblement le dispositif de filtrage, imposant un nettoyage du dispositif de filtrage. Ainsi, les performances de filtration et d'aspiration de ces appareils connus peuvent chuter brutalement, de façon aléatoire du point de vue de l'utilisateur, et alors que la quantité de débris récupérés est très inférieure à celle correspondant à la capacité du dispositif de filtrage. En outre, une trappe d'accès au dispositif de filtration doit être prévue pour permettre le démontage de ce dernier en vue de son nettoyage. Or, dans les appareils antérieurs, la trappe d'accès au dispositif de filtration doit être située à la base du corps creux, les entrées de liquide étant alors nécessairement équipées de dispositifs anti-retour tels que des clapets. Or, cette disposition n'est pas commode pour l'utilisateur qui doit préalablement renverser l'appareil, ce qui peut l'endommager et par ailleurs provoquer des écoulements intempestifs désagréables.In addition, the inventors have found that such devices do not exhibit stable filtration performance over time, especially when cleaning a submerged surface heavily congested with debris. In particular, the periods of service of the apparatus between which cleaning must be performed are relatively brief if the surface is very crowded with debris and especially very variable depending on the nature of the waste recovered, so that they vary randomly for the user. For example if the basin is clean but the device sucks a single sheet of large size, this sheet is likely to substantially close the filter device, requiring cleaning of the filter device. Thus, the filtration and suction performance of these known devices can drop sharply, randomly from the point of view of the user, and while the amount of debris recovered is much lower than that corresponding to the capacity of the device. filtering. In addition, a hatch access to the filtration device must be provided to allow the disassembly of the latter for cleaning. However, in the previous devices, the access hatch to the filtration device must be located at the base of the hollow body, the liquid inlets then necessarily being equipped with non-return devices such as valves. However, this provision is not convenient for the user who must previously reverse the device, which can damage it and otherwise cause unpleasant unwanted flow.
Dans ce contexte, l'invention vise donc à proposer un appareil nettoyeur de surface immergée dont le rapport performances/coût est grandement amélioré par rapport à celui des appareils antérieurs. Plus particulièrement, l'invention vise à proposer un tel appareil dont le coût peut être sensiblement abaissé, pour des performances équivalentes, voire supérieures à celles des appareils connus.In this context, the invention therefore aims to provide a submerged surface cleaner device whose performance / cost ratio is greatly improved over that of previous devices. More particularly, the invention aims to provide such a device whose cost can be substantially lowered, for equivalent performance, or even greater than those of known devices.
L'invention vise également à proposer un tel appareil dont les performances de filtration sont stables au cours du temps, quelle que soit la nature des débris, y compris lors du nettoyage d'une surface immergée fortement encombrée de débris, notamment de débris volumineux présentant un encombrement équivalent à une pièce de 2 euros ou de feuilles.The invention also aims at providing such an apparatus whose filtration performance is stable over time, regardless of the nature of the debris, including during the cleaning of a submerged surface heavily congested with debris, especially bulky debris with a footprint equivalent to a piece of 2 euros or sheets.
L'invention vise également à proposer un tel appareil pouvant présenter une trappe d'accès située sur le dessus, mais avec un dispositif de filtration présentant un grand volume de stockage des débris et un circuit hydraulique simple. Pour ce faire, l'invention concerne un appareil nettoyeur de surface immergée comprenant :The invention also aims at providing such an apparatus that may have an access door located on the top, but with a filtration device having a large debris storage volume and a simple hydraulic circuit. To do this, the invention relates to a submerged surface cleaning apparatus comprising:
- un corps creux et des organes de guidage et d'entraînement dudit corps sur la surface immergée dans un sens d'avancement privilégié et selon une direction principale d'avancement, dite direction longitudinale, - une chambre de filtration ménagée dans ledit corps creux et présentant : au moins une entrée de liquide dans le corps creux située à la base et à l'avant dudit corps creux,a hollow body and guiding and driving members of said body on the submerged surface in a preferred direction of advancement and in a main direction of advancement, referred to as the longitudinal direction, a filtration chamber formed in said hollow body and having: at least one liquid inlet in the hollow body located at the base and front of said hollow body,
. au moins une sortie de liquide hors du corps creux située à distance de la base dudit corps creux,. at least one liquid outlet out of the hollow body located at a distance from the base of said hollow body,
. un circuit hydraulique adapté pour assurer une circulation de liquide entre chaque entrée et chaque sortie, à travers un dispositif de filtrage comprenant des parois filtrantes et logé dans la chambre de filtration, sous l'effet d'un dispositif de pompage, caractérisé en ce qu'il comprend :. a hydraulic circuit adapted to ensure a circulation of liquid between each inlet and each outlet, through a filtering device comprising filtering walls and housed in the filtration chamber, under the effect of a pumping device, characterized in that 'He understands :
- au moins une sortie de liquide hors du corps creux, dite sortie arrière, décalée vers l'arrière selon la direction longitudinale de chaque entrée de liquide avec laquelle elle est en communication via le circuit hydraulique,at least one liquid outlet out of the hollow body, called the rear outlet, shifted rearwardly in the longitudinal direction of each liquid inlet with which it is in communication via the hydraulic circuit,
- une paroi rigide, dite paroi turbulente, agencée dans le dispositif de filtrage, en amont des parois filtrantes, et s'étendant selon une direction non parallèle à au moins une direction reliant une entrée de liquide et une sortie arrière, de façon à former un obstacle à la circulation de liquide de cette entrée de liquide vers cette sortie de liquide engendrant une circulation tourbillonnaire de liquide dans le dispositif de filtrage à l'aval de cette paroi rigide. Les inventeurs ont en effet constaté que l'agencement d'une paroi rigide sur la trajectoire du liquide entre une entrée de liquide et une sortie arrière de liquide, qui de prime abord peut sembler défavorable, tant du point de vue de la perte de charge que du point de vue de la qualité de l'aspiration, permet en réalité, lorsque cette paroi est agencée en amont des parois filtrantes, d'améliorer les performances de filtration par la génération d'une circulation tourbillonnaire au sein du dispositif de filtrage qui maintient en permanence les débris en suspension dans le dispositif de filtrage, évitant ainsi le colmatage des parois filtrantes du dispositif de filtrage, et favorisant finalement les performances hydrodynamiques du dispositif de filtrage et du circuit hydraulique.a rigid wall, called a turbulent wall, arranged in the filtering device, upstream of the filtering walls, and extending in a direction that is not parallel to at least one direction connecting a liquid inlet and a rear outlet, so as to form an obstacle to the flow of liquid from this liquid inlet to this liquid outlet generating a vortex flow of liquid in the filter device downstream of this rigid wall. The inventors have indeed found that the arrangement of a rigid wall on the path of the liquid between a liquid inlet and a rear outlet liquid, which at first sight may seem unfavorable, both from the point of view of the pressure drop and from the point of view of the quality of the suction, actually allows, when this wall is arranged upstream of the filtering walls, to improve the filtration performance by generating a vortex circulation within the filtering device which permanently keeps the debris suspended in the filtering device, thus avoiding clogging of the filtering walls of the filtering device, and finally favoring the hydrodynamic performance of the filter device and the hydraulic circuit.
En d'autres termes, les pertes de charges induites par l'agencement d'une paroi rigide sur la trajectoire de circulation de liquide sont compensées par le maintien de la perméabilité initiale des parois filtrantes du dispositif de filtrage. En outre, les périodes de service entre lesquelles l'appareil doit être nettoyé sont plus longues et surtout de durées sensiblement constantes, au bénéficie d'un plus grand confort d'utilisation. De plus, cette paroi turbulente fait également office de paroi anti-retour de telle sorte que les débris ayant passé cette paroi ne peuvent plus ressortir par l'entrée de liquide, y compris à l'arrêt du dispositif de pompage, ce qui supprime la nécessité de ménager des clapets ou autres dispositifs anti-retour sur les entrées de liquide. En outre, cet agencement permet de concevoir l'appareil de façon à récupérer directement au moins une partie de l'énergie hydraulique résiduelle dans le flux de sortie pour participer à l'entraînement de l'appareil.In other words, the pressure losses induced by the arrangement of a rigid wall on the liquid flow path are compensated by maintaining the initial permeability of the filtering walls of the filtering device. In addition, the periods of service between which the device must be cleaned are longer and especially of substantially constant periods, to the benefit of greater comfort of use. In addition, this turbulent wall also acts as a non-return wall so that the debris that has passed this wall can no longer emerge through the liquid inlet, even when the pumping device is stopped, which eliminates the need to provide valves or other non-return devices on the liquid inlets. In addition, this arrangement makes it possible to design the apparatus so as to directly recover at least a portion of the residual hydraulic energy in the output stream to participate in driving the apparatus.
En conséquence, à performances d'aspiration et de nettoyage équivalentes, un appareil selon l'invention peut être doté d'un moteur de pompage -notamment un moteur électrique de pompage- et d'un dispositif d'entraînement -notamment comprenant au moins un moteur électrique d'entraînement- dont la puissance est réduite, et donc de consommation et de coûts réduits. Il en résulte également un volume général et un poids plus faibles de l'appareil ce qui, outre l'économie réalisée, est un avantage important pour l'utilisateur, notamment en termes de manipulations, de transport, et de stockage de l'appareil.Consequently, with equivalent suction and cleaning performance, an apparatus according to the invention can be provided with a pump motor - in particular an electric pump motor - and a drive device - notably comprising at least one electric drive motor - whose power is reduced, and therefore consumption and reduced costs. This also results in a lower overall volume and a lower weight of the apparatus which, in addition to the economy achieved, is an important advantage for the user, particularly in terms of handling, transport and storage of the apparatus. .
La paroi turbulente peut être agencée en tout point du dispositif de filtrage, en amont des parois filtrantes, c'est-à-dire dans la partie sale du circuit hydraulique. En particulier, elle peut s'étendre depuis une portion supérieure ou inférieure du dispositif de filtrage. Néanmoins, de préférence, cette paroi s'étend au voisinage d'une entrée de liquide, à l'aval de cette entrée de liquide. Avantageusement et selon l'invention, le dispositif de filtrage comprend une ouverture avant ménagée en regard d'une extrémité supérieure d'un conduit d'entrée de liquide s'étendant à partir d'au moins une entrée de liquide, cette ouverture avant étant en communication avec chaque entrée de liquide et une poche de filtration et de récupération des débris délimitée par des parois filtrantes et qui s'étend vers chaque sortie arrière, ledit conduit d'entrée présentant une paroi arrière transversale qui forme ladite paroi turbulente.The turbulent wall can be arranged at any point of the device filtering, upstream of the filter walls, that is to say in the dirty part of the hydraulic circuit. In particular, it may extend from an upper or lower portion of the filter device. Nevertheless, preferably, this wall extends in the vicinity of a liquid inlet, downstream of this liquid inlet. Advantageously and according to the invention, the filtering device comprises a front opening arranged opposite an upper end of a liquid inlet duct extending from at least one liquid inlet, this front opening being in communication with each liquid inlet and a filter bag and debris recovery defined by filter walls and which extends to each rear outlet, said inlet conduit having a transverse rear wall which forms said turbulent wall.
La paroi turbulente formée par la paroi arrière transversale du conduit d'entrée fait office de paroi anti-retour et interdit aux débris de sortir de la poche de filtration et de récupération des débris pour retourner vers la surface immergée par l'ouverture avant.The turbulent wall formed by the transverse rear wall of the inlet duct acts as a non-return wall and prevents debris from exiting the filtration bag and debris recovery to return to the immersed surface through the front opening.
Selon une variante, cette paroi peut s'étendre dans un plan globalement vertical entre une zone en arrière des entrées de liquide et l'ouverture avant supérieure de la poche de filtration et de récupération des débris. De préférence, cette paroi anti-retour s'étend sur une majeure partie de la hauteur du conduit d'entrée, notamment sur plus de 75% de la hauteur du conduit d'entrée.Alternatively, this wall may extend in a generally vertical plane between an area behind the liquid inlets and the upper front opening of the filter bag and debris recovery. Preferably, this non-return wall extends over a major part of the height of the inlet duct, in particular over more than 75% of the height of the inlet duct.
Avantageusement et selon l'invention, ledit conduit d'entrée s'étend selon une direction, dite direction d'entrée de liquide, formant avec au moins une direction moyenne passant par l'ouverture avant et une sortie arrière en communication avec cette ouverture avant, un angle aigu, de manière à favoriser les turbulences du liquide dans la poche de filtration et de récupération des débris.Advantageously and according to the invention, said inlet duct extends in a direction, called the liquid inlet direction, forming with at least one mean direction passing through the front opening and a rear outlet in communication with this front opening. , an acute angle, so as to promote the turbulence of the liquid in the filtration bag and debris recovery.
Un tel agencement du conduit d'entrée par rapport à chaque sortie arrière augmente les turbulences générées par la paroi turbulente.Such an arrangement of the inlet duct with respect to each rear outlet increases the turbulence generated by the turbulent wall.
Avantageusement et selon l'invention, ladite poche de filtration et de récupération des débris s'étend immédiatement à l'aval de ladite ouverture avant et sous cette dernière.Advantageously and according to the invention, said bag for filtering and recovering debris extends immediately downstream of said opening before and under the latter.
Avantageusement et selon l'invention, chaque sortie arrière est située sous ladite ouverture avant du dispositif de filtrage.Advantageously and according to the invention, each rear exit is located under said front opening of the filter device.
Selon cette variante, la paroi turbulente présente une extrémité supérieure qui définit l'extrémité inférieure de l'ouverture du dispositif de filtrage, et définit un point haut par rapport à chaque sortie arrière. En d'autres termes, la distance entre l'extrémité supérieure de la paroi turbulente et la surface immergée est plus grande que chaque distance entre chaque sortie arrière et la surface immergée.According to this variant, the turbulent wall has an upper end which defines the lower end of the opening of the filtering device, and defines a high point with respect to each rear outlet. In other words, the distance between the upper end of the turbulent wall and the immersed surface is greater than each distance between each rear outlet and the immersed surface.
Avantageusement et selon l'invention, la paroi turbulente s'étend sur plus de 75% de la hauteur maximale de la poche de filtration et de récupération des débris. Une telle paroi turbulente permet la génération, dans la poche de filtration, d'une circulation tourbillonnaire dont le tourbillon de fluide s'étend dans toute la poche de filtration de telle sorte que la plus grande partie des débris présents dans la poche de filtration est en suspension permanente dans la poche tant que le dispositif de pompage est en marche, ce qui permet d'éviter le colmatage des parois filtrantes par ces débris, et favorise finalement les performances hydrodynamiques du dispositif de filtrage et du circuit hydraulique.Advantageously and according to the invention, the turbulent wall extends over more than 75% of the maximum height of the filtration and debris recovery bag. Such a turbulent wall allows the generation in the filtration bag of a vortex circulation whose vortex of fluid extends throughout the filtration bag so that most of the debris present in the filtration bag is in permanent suspension in the pocket as the pumping device is in operation, which prevents clogging of the filter walls by the debris, and finally promotes the hydrodynamic performance of the filter device and the hydraulic circuit.
La poche de filtration et de récupération des débris peut être de tous types.The filtration bag and debris recovery can be of all types.
Avantageusement et selon l'invention, ladite poche de filtration et de récupération des débris comporte une ossature rigide et une nappe filtrante s'étendant dans des ouvertures ménagées par l'ossature rigide.Advantageously and according to the invention, said bag for filtering and recovering debris comprises a rigid frame and a filtering sheet extending into openings formed by the rigid framework.
Un tel dispositif de filtrage est autoporteur et peut être aisément manipulé par un utilisateur en vue par exemple de l'extraction du dispositif de filtrage pour extraire les débris récoltés par la poche de récupération des débris. Avantageusement et selon l'invention, le circuit hydraulique comprend au moins une hélice de pompage axial disposée à l'aval du dispositif de filtrage de façon à générer un débit de liquide dans une sortie de liquide, ladite hélice de pompage axial étant accouplée à un moteur d'entraînement disposé sous une portion arrière du dispositif de filtration. Le moteur de pompage est de préférence agencé sous la paroi inférieure inclinée de la poche de filtration et de récupération des débris. Un tel agencement présente une compacité permettant de réduire notablement l'encombrement vertical et horizontal de l'appareil, ce qui contribue à réduire la traînée hydraulique de l'appareil.Such a filtering device is self-supporting and can be easily manipulated by a user for example for the extraction of the filtering device to extract the debris collected by the debris recovery bag. Advantageously and according to the invention, the hydraulic circuit comprises at least one axial pumping helix disposed downstream of the filtering device so as to generate a flow of liquid in a liquid outlet, said axial pumping propeller being coupled to a driving motor disposed under a rear portion of the filter device. The pumping motor is preferably arranged under the inclined lower wall of the filtration and debris collection bag. Such an arrangement has a compactness to significantly reduce the vertical and horizontal dimensions of the device, which helps reduce the hydraulic drag of the device.
Avantageusement et selon l'invention, ladite hélice de pompage axial est disposée dans un carénage cylindrique formant la sortie de liquide.Advantageously and according to the invention, said axial pumping propeller is disposed in a cylindrical fairing forming the liquid outlet.
Avantageusement et selon l'invention, l'hélice de pompage axial et ledit carénage cylindrique sont orientés de façon à générer un débit de liquide selon une direction faisant avec ladite direction longitudinale, un angle non nul et différent de 90°. Avantageusement, un appareil selon l'invention comprend en outre une trappe d'accès au dispositif de filtrage, ménagée sur une paroi extérieure du corps creux et adaptée pour permettre le démontage et l'extraction du dispositif de filtrage hors du corps creux en vue de son nettoyage.Advantageously and according to the invention, the axial pumping helix and said cylindrical fairing are oriented so as to generate a flow of liquid in a direction making with said longitudinal direction, a non-zero angle and different from 90 °. Advantageously, an apparatus according to the invention further comprises an access hatch for the filtration device, arranged on an outer wall of the hollow body and adapted to allow the disassembly and extraction of the filter device from the hollow body in order to his cleaning.
Cette trappe d'accès peut être agencée sur n'importe quelle paroi du corps creux de l'appareil, notamment sur une paroi avant ou une paroi supérieure.This access hatch can be arranged on any wall of the hollow body of the apparatus, in particular on a front wall or an upper wall.
Néanmoins, avantageusement et selon l'invention, ladite trappe d'accès est ménagée sur la paroi supérieure du corps creux.Nevertheless, advantageously and according to the invention, said access door is provided on the upper wall of the hollow body.
Cela permet un démontage aisé et rapide du dispositif de filtrage depuis la paroi supérieure du corps creux. Il est donc aisé avec un appareil selon l'invention de procéder à l'extraction du dispositif de filtrage, en vue par exemple de procéder au nettoyage de ce dernier, l'appareil étant dans sa position normale sur une surface, c'est-à-dire la base de l'appareil face au sol. Ce démontage n'impose pas de retourner l'appareil de bas en haut. Avantageusement et selon l'invention, le dispositif de filtrage comprend des nervures s 'étendant latéralement de chaque côté du dispositif de filtrage et présentant une forme et des dimensions conformées et conjuguées à la forme et aux dimensions de rainures solidaires du corps creux de façon à pouvoir coulisser le dispositif de filtrage le long des rainures pour extraire le dispositif de filtrage du corps creux par ladite trappe d'accès.This allows easy and quick disassembly of the filter device from the top wall of the hollow body. It is therefore easy with an apparatus according to the invention to carry out the extraction of the filtering device, for example to proceed with the cleaning of the latter, the apparatus being in its normal position on a surface, that is, ie the base of the device facing the ground. This disassembly does not require turning the device up and down. Advantageously and according to the invention, the filtering device comprises ribs extending laterally on each side of the filtering device and having a shape and dimensions shaped and conjugate to the shape and dimensions of integral grooves of the hollow body so as to ability to slide the filter device along the grooves to extract the filtering device of the hollow body by said access door.
Ainsi, l'extraction du dispositif de filtrage du corps creux par la trappe supérieure résulte d'un déplacement en translation du dispositif de filtrage le long des rainures du corps creux. Un utilisateur peut donc aisément retirer le dispositif de filtrage du corps creux en vue par exemple de procéder à son nettoyage. Une fois le dispositif de filtrage nettoyé, un utilisateur peut sans difficulté réintroduire le dispositif de filtrage dans le corps creux en orientant le dispositif de filtrage de sorte que les nervures du dispositif de filtrage soient en regard des rainures du corps creux, puis en coulissant le dispositif de filtrage dans le corps creux.Thus, the extraction of the filtering device of the hollow body by the upper hatch results from a displacement in translation of the filtering device along the grooves of the hollow body. A user can easily remove the filter device from the hollow body for example to clean it. Once the filtering device has been cleaned, a user can easily reintroduce the filtering device into the hollow body by orienting the filtering device so that the ribs of the filtering device are facing the grooves of the hollow body, and then sliding the filtering device in the hollow body.
L'invention concerne en outre un appareil nettoyeur d'une surface immergée caractérisé en combinaison par tout ou partie des caractéristiques mentionnées ci-dessus ou ci-après.The invention further relates to an apparatus for cleaning a submerged surface characterized in combination by all or some of the characteristics mentioned above or below.
D'autres caractéristiques, buts et avantages de l'invention apparaîtront à la lecture de la description suivante qui présente à titre d'exemple non limitatif un mode de réalisation de l'invention, en référence aux dessins annexés ; sur ces dessins : - la figure 1 est une vue schématique en perspective d'un appareil nettoyeur selon un mode de réalisation de l'invention,Other characteristics, objects and advantages of the invention will become apparent on reading the following description which, by way of nonlimiting example, shows one embodiment of the invention, with reference to the appended drawings; in these drawings: FIG. 1 is a schematic perspective view of a cleaning apparatus according to one embodiment of the invention;
- la figure 2 est une vue schématique arrière d'un appareil nettoyeur selon un mode de réalisation de l'invention,FIG. 2 is a schematic rear view of a cleaning apparatus according to one embodiment of the invention,
- la figure 3 est une vue schématique en coupe d'un appareil nettoyeur selon un mode de réalisation de l'invention,FIG. 3 is a schematic sectional view of a cleaning apparatus according to one embodiment of the invention,
- la figure 4 est une vue schématique en perspective d'un dispositif de filtrage selon un mode de réalisation de l'invention,FIG. 4 is a schematic perspective view of a filtering device according to one embodiment of the invention,
- la figure 5 est une vue schématique en coupe simplifiée de la figure 3 représentant l'appareil en fonctionnement sur une surface immergée, - la figure 6 est une vue schématique en perspective d'un carter d'un appareil selon un mode de réalisation de l'invention.FIG. 5 is a simplified sectional schematic view of FIG. 3 showing the apparatus in operation on a submerged surface; FIG. 6 is a schematic perspective view of a casing of an apparatus according to an embodiment of FIG. the invention.
Sur les figures, les échelles et les proportions ne sont pas strictement respectées et ce, à des fins d'illustration et de clarté.Figures, scales and proportions are not strictly adhered to for the purpose of illustration and clarity.
Dans toute la description détaillée qui suit en référence aux figures, sauf indication contraire, chaque pièce de l'appareil nettoyeur est décrite telle qu'elle est agencée lorsque l'appareil est en déplacement normal sur une surface immergée horizontale selon un sens privilégié d'avancement, par rapport auquel l'avant et l'arrière de l'appareil sont définis.Throughout the following detailed description with reference to the figures, unless otherwise indicated, each part of the cleaning apparatus is described as arranged when the apparatus is in normal movement on a surface. horizontal submerged according to a privileged direction of advancement, with respect to which the front and the rear of the apparatus are defined.
Un appareil selon l'invention comprend un corps 1 creux et des organes 2, 3, 4 roulants de guidage et d'entraînement du corps 1 creux sur une surface immergée dans au moins un sens privilégié d'avancement et selon une direction principale d'avancement, dite direction longitudinale, parallèle à la surface immergée.An apparatus according to the invention comprises a hollow body 1 and rolling bodies 2, 3, 4 for guiding and driving the hollow body 1 on a surface immersed in at least one privileged direction of advancement and in a main direction of advancement, said longitudinal direction, parallel to the immersed surface.
Ce corps 1 creux est formé principalement d'un carter concave délimitant une enceinte principale. Ce carter concave est par exemple réalisé par moulage ou rotomoulage. Ce carter est de préférence réalisé en un matériau thermoplastique, tel que le polyéthylène, le polypropylène, l'ABS, le PMMA ou tout matériau équivalent.This hollow body 1 is formed mainly of a concave casing delimiting a main enclosure. This concave casing is for example made by molding or rotational molding. This housing is preferably made of a thermoplastic material, such as polyethylene, polypropylene, ABS, PMMA or any equivalent material.
Ce corps 1 creux présente, tel que représenté sur la figure 6, une enceinte 35 centrale adaptée pour recevoir une chambre de filtration. Cette enceinte 35 centrale est délimitée par une paroi inférieure s 'étendant dans un plan sensiblement horizontal ; par des parois 36 latérales s'étendant globalement dans des plans verticaux ; par une paroi 37 avant s'étendant globalement dans un plan vertical, orthogonale aux plans des parois 36 latérales verticales ; et par une paroi 38 arrière s'étendant globalement dans un plan vertical orthogonal aux plans des parois 36 latérales verticales. La paroi inférieure présente une ouverture s'étendant transversalement au voisinage de la paroi 37 avant de telle sorte que du liquide peut rentrer dans l'enceinte 35 centrale par cette ouverture inférieure transversale. Cette ouverture forme une entrée 9 de liquide dans le corps 1 creux.This hollow body 1 has, as shown in FIG. 6, a central chamber 35 adapted to receive a filtration chamber. This central chamber is delimited by a lower wall extending in a substantially horizontal plane; by side walls 36 extending generally in vertical planes; by a front wall 37 extending generally in a vertical plane, orthogonal to the planes of the vertical side walls 36; and a rear wall 38 extending generally in a vertical plane orthogonal to the planes of the vertical side walls 36. The lower wall has an opening extending transversely adjacent the wall 37 before such that liquid can enter the central chamber through this lower transverse opening. This opening forms an inlet 9 of liquid in the hollow body 1.
La paroi 38 arrière comprend une ouverture cylindrique formant une sortie 10 de liquide hors du corps 1 creux. Cette sortie 10 de liquide ménagée dans la paroi 38 arrière du carter est longitudinalement décalée de l'entrée 9 de liquide ménagée dans la paroi inférieure. De plus, cette sortie 10 de liquide est agencée dans la partie haute du carter de telle sorte qu'elle est également verticalement décalée de l'entrée 9 de liquide. Comme représenté notamment sur la figure 3, cette enceinte 35 centrale, cette entrée 9 de liquide et cette sortie 10 de liquide forment une chambre 8 de filtration. Cette chambre 8 de filtration comprend en outre un circuit hydraulique adapté pour assurer une circulation de liquide entre l'entrée 9 de liquide et la sortie 10 de liquide à travers un dispositif 11 de filtrage.The rear wall 38 includes a cylindrical opening forming a liquid outlet 10 out of the hollow body 1. This liquid outlet 10 formed in the rear wall 38 of the casing is longitudinally offset from the liquid inlet 9 formed in the bottom wall. In addition, this liquid outlet 10 is arranged in the upper part of the casing so that it is also vertically offset from the inlet 9 of liquid. As shown in particular in FIG. 3, this central chamber, this liquid inlet 9 and this liquid outlet 10 form a chamber 8. filtration. This filtration chamber 8 further comprises a hydraulic circuit adapted to ensure a flow of liquid between the inlet 9 of liquid and the outlet 10 of liquid through a filtering device 11.
L'enceinte centrale du corps 1 creux est adaptée pour recevoir un dispositif 11 de filtrage. Le dispositif 11 de filtrage est agencé entre l'entrée 9 de liquide et la sortie 10 de liquide.The central chamber of the hollow body 1 is adapted to receive a filtering device 11. The filtering device 11 is arranged between the inlet 9 of liquid and the outlet 10 of liquid.
Selon l'invention, ce dispositif 11 de filtrage comprend une ouverture 54 avant en communication avec l'entrée 9 de liquide et une poche 55 de filtration et de récupération des débris. Cette poche 55 s'étend entre l'ouverture 54 avant et la sortie 10 de liquide.According to the invention, this filtering device 11 comprises an opening 54 before in communication with the inlet 9 of liquid and a pocket 55 for filtering and recovering debris. This pocket 55 extends between the opening 54 before and the outlet 10 of liquid.
Le dispositif 11 de filtrage comprend en outre un conduit 15 d'entrée de liquide s'étendant à partir de l'entrée 9 de liquide jusqu'à l'ouverture 54 avant reliée à la poche 55 de filtration et de récupération des débris. Ainsi, l'ouverture 54 avant est ménagée en regard de l'extrémité supérieure de ce conduit 15 d'entrée de liquide s'étendant à partir de l'entrée 9 de liquide. Ce conduit 15 d'entrée de liquide présente une paroi arrière, dite paroi 16 turbulente, agencée entre l'entrée de liquide et la poche 55 de filtration et de récupération des débris.The filtering device 11 further comprises a liquid inlet conduit 15 extending from the liquid inlet 9 to the opening 54 before connected to the bag 55 for filtering and recovering debris. Thus, the front opening 54 is arranged facing the upper end of this liquid inlet duct 15 extending from the inlet 9 of liquid. This liquid inlet duct 15 has a rear wall, called a turbulent wall 16, arranged between the liquid inlet and the bag 55 for filtering and recovering debris.
La poche 55 de filtration et de récupération des débris est formée d'une ossature 26 rigide et d'une nappe filtrante s'étendant dans des ouvertures ménagées dans cette ossature rigide. Elle comprend ainsi, tel que représenté sur la figure 4, des parois 56, 57, 58, 59 filtrantes. Le dispositif 11 de filtrage est donc autoporteur et peut être aisément manipulé par un utilisateur.The bag 55 for filtering and recovering debris is formed of a rigid frame 26 and a filtering sheet extending into openings in this rigid framework. It thus comprises, as shown in Figure 4, walls 56, 57, 58, 59 filtering. The filtering device 11 is therefore self-supporting and can be easily manipulated by a user.
La paroi 16 turbulente génère des turbulences dans la poche 55 de filtration et de récupération des débris en amont des parois 56, 57, 58, 59 filtrantes. Cette paroi 16 présente, tel que représenté notamment sur la figure 3, une portion 65 extrême supérieure courbe.The turbulent wall 16 generates turbulence in the pocket 55 for filtering and collecting debris upstream of the filter walls 56, 57, 58, 59. This wall 16 has, as shown in particular in Figure 3, a portion 65 extreme upper curved.
La paroi 16 turbulente s'étend transversalement entre les parois 58, 59 latérales de la poche 55 de filtration et de récupération des débris. La paroi 16 turbulente s'étend sur une majeure partie de la hauteur de la poche 55 de filtration et de récupération des débris.The turbulent wall 16 extends transversely between the side walls 58, 59 of the pocket 55 for filtering and collecting debris. The turbulent wall 16 extends over a major part of the height of the pocket 55 for filtering and recovering debris.
La paroi 16 turbulente s'étend globalement dans un plan sensiblement perpendiculaire à la surface immergée sur laquelle l'appareil se déplace. Cette paroi 16 turbulente s'étend de la base du dispositif 11 de filtrage en s 'éloignant de la surface immergée jusqu'à l'ouverture avant définie entre un bord supérieur de cette paroi 16 turbulente et la paroi 57 supérieure de la poche 55 de filtration qui s'étend globalement dans un plan parallèle à la surface immergée.The turbulent wall 16 extends globally in a plane substantially perpendicular to the submerged surface on which the apparatus is moving. This turbulent wall 16 extends from the base of the filter device 11 away from the immersed surface to the front opening defined between an upper edge of this turbulent wall 16 and the upper wall 57 of the pocket 55 of filtration which extends generally in a plane parallel to the immersed surface.
Selon un mode de réalisation avantageux, le conduit 15 d'entrée s'étend selon une direction, dite direction 63 d'entrée de liquide, et présente avec la direction 62 moyenne reliant l'ouverture avant à la sortie 10 de liquide, un angle β aigu, de manière à favoriser les turbulences du liquide dans la poche 55 de filtration et de récupération des débris.According to an advantageous embodiment, the inlet duct 15 extends in a direction, referred to as the liquid inlet direction 63, and has, with the mean direction 62 connecting the front opening to the liquid outlet, an angle β acute, so as to promote the turbulence of the liquid in the pocket 55 filtration and recovery of debris.
Selon le mode de réalisation des figures et tel que représenté sur la figure 3, l'angle β est de l'ordre de 80°, ce qui permet de créer des turbulences importantes tout en maintenant un débit de liquide important.According to the embodiment of the figures and as shown in Figure 3, the angle β is of the order of 80 °, which allows to create significant turbulence while maintaining a large liquid flow.
Ces turbulences maintiennent les débris en suspension dans la poche 55 de filtration et de récupération des débris, ce qui permet d'éviter le colmatage des parois 56, 57, 58 et 59 filtrantes du dispositif 11 de filtrage par ces débris.This turbulence keeps the debris suspended in the pocket 55 for filtering and recovering debris, which makes it possible to prevent clogging of the filter walls 56, 57, 58 and 59 of the filtering device 11 with this debris.
En outre, la poche 55 de filtration et de récupération des débris présente une section droite transversale décroissante de l'ouverture 54 avant vers la sortie 10 de liquide de façon à former une enceinte convergente de filtration tangentielle du liquide circulant entre l'ouverture 54 avant et la sortie 10 de liquide. Cette filtration tangentielle participe également à éviter le colmatage des parois 56, 57, 58 et 59 filtrantes du dispositif 11 de filtrage par les débris aspirés par l'appareil.In addition, the bag 55 for filtering and recovering debris has a decreasing transverse cross section from the front opening 54 towards the liquid outlet 10 so as to form a convergent tangential filtration chamber for the liquid flowing between the opening 54 beforehand. and the liquid outlet 10. This tangential filtration also helps to prevent clogging of the walls 56, 57, 58 and 59 filtering the filter device 11 by debris sucked by the device.
La poche 55 de filtration et de récupération des débris présente une paroi 56 inférieure filtrante inclinée vers l'arrière et vers le haut depuis une portion de fond de la poche 55.The bag 55 for filtering and recovering debris has a bottom filter wall 56 inclined backwards and upwards from a bottom portion of the bag 55.
Cette poche 55 de filtration comprend en outre une paroi 57 supérieure globalement horizontale et s'étendant à partir de l'ouverture 54 avant vers l'arrière. Cette paroi 57 supérieure filtrante est reliée à la paroi 56 inférieure filtrante par une portion 61 courbe extrême arrière supérieure.This filter pocket 55 further comprises a generally horizontal upper wall 57 and extending from the front opening 54 to the rear. This filtering upper wall 57 is connected to the filtering lower wall 56 by a portion 61 upper extreme rear curve.
L'appareil comprend également, tel que représenté sur la figure 1, une trappe 6 d'accès à ce dispositif 11 de filtrage. Cette trappe 6 d'accès forme une paroi supérieure du corps 1 creux et recouvre ce dernier. Dans le mode de réalisation représenté, cette trappe 6 est ménagée sur le dessus de l'appareil de telle sorte qu'un utilisateur de l'appareil peut aisément procéder à l'ouverture de la trappe 6 et extraire le dispositif 11 de filtrage. De préférence, la trappe 6 d'accès est articulée au corps 1 de l'appareil par des charnières 23 agencées à l'arrière de l'appareil.The apparatus also includes, as shown in the figure 1, a hatch 6 access to this device 11 filtering. This access hatch 6 forms an upper wall of the hollow body 1 and covers the latter. In the embodiment shown, this hatch 6 is formed on the top of the device so that a user of the device can easily open the hatch 6 and extract the filter device 11. Preferably, the access hatch 6 is articulated to the body 1 of the apparatus by hinges 23 arranged at the rear of the apparatus.
De préférence, le dispositif 11 de filtrage est un dispositif monté dans l'enceinte 35 centrale du corps 1 creux à la façon d'un tiroir. Pour ce faire, l'ossature 26 rigide du dispositif 11 de filtrage présente deux nervures 25 s'étendant latéralement de chaque côté du dispositif 11 de filtrage. Ces nervures 25 présentent des formes et dimensions conformées et conjuguées aux formes et dimensions de rainures solidaires du corps 1 creux. Ces rainures solidaires du corps 1 creux s'étendent verticalement le long des faces intérieures des parois latérales verticales du corps 1 creux. Les nervures 25 du dispositif 11 de filtrage sont donc adaptées pour coopérer avec les rainures du corps 1 creux de l'appareil.Preferably, the filtering device 11 is a device mounted in the central chamber 1 of the hollow body 1 in the manner of a drawer. To do this, the rigid frame 26 of the filtering device 11 has two ribs 25 extending laterally on each side of the filtering device 11. These ribs 25 have shapes and dimensions shaped and conjugate to the shapes and dimensions of grooves integral with the hollow body 1. These grooves integral with the hollow body 1 extend vertically along the inner faces of the vertical side walls of the hollow body 1. The ribs 25 of the filtering device 11 are therefore adapted to cooperate with the grooves of the hollow body 1 of the apparatus.
Ainsi, l'extraction du dispositif 11 de filtrage résulte d'un déplacement en translation du dispositif 11 de filtrage le long des rainures du corps 1 creux. Un utilisateur peut donc aisément retirer le dispositif 11 de filtrage du corps 1 creux en vue par exemple de procéder à son nettoyage. Une fois le dispositif 11 de filtrage nettoyé, un utilisateur peut sans difficulté réintroduire le dispositif 11 de filtrage dans le corps 1 creux en orientant le dispositif 11 de filtrage de sorte que les nervures 25 du dispositif 11 de filtrage soient en regard des rainures du corps creux, puis en coulissant le dispositif 11 de filtrage dans le corps 1 creux.Thus, the extraction of the filtering device 11 results from a displacement in translation of the filtering device 11 along the grooves of the hollow body 1. A user can easily remove the filtering device 11 from the hollow body 1 for example to clean it. Once the filtering device 11 has been cleaned, a user can easily reintroduce the filtering device 11 into the hollow body 1 by orienting the filtering device 11 so that the ribs 25 of the filtering device 11 are facing the grooves of the body hollow, and then sliding the filtering device 11 in the hollow body 1.
Le dispositif 1 1 de filtrage comprend en outre une poignée 28 ménagée sur une portion supérieure du dispositif 11 de filtrage de manière à faciliter les manipulations du dispositif 11 de filtrage. En particulier, un utilisateur peut aisément monter/démonter le dispositif 11 de filtrage par l'intermédiaire de cette poignée 28 lorsque l'appareil est hors du liquide et repose sur une surface horizontale.The filtering device 1 1 further comprises a handle 28 formed on an upper portion of the filtering device 11 so as to facilitate the handling of the filtering device 11. In particular, a user can easily assemble / disassemble the filtering device 11 via this handle 28 when the device is out of the liquid and rests on a horizontal surface.
Selon l'invention, un appareil comprend un dispositif motorisé de pompage de liquide comprenant un moteur 12 électrique de pompage présentant un arbre 13 rotatif moteur accouplé à une hélice 14 de pompage interposée dans le circuit hydraulique de façon à y générer un débit de liquide entre l'entrée 9 de liquide et la sortie 10 de liquide. La sortie 10 de liquide est directement en regard de l'hélice de pompage de sorte que le liquide s'écoule hors du corps 1 creux par la sortie 10 de liquide selon une direction correspondant au débit de liquide généré par l'hélice de pompage, ce débit ayant une vitesse orientée selon l'axe 51 de rotation de l'hélice 14.According to the invention, an apparatus comprises a motorized liquid pumping device comprising an electric pumping motor 12 having a rotating motor shaft 13 coupled to a pumping propeller 14 interposed in the circuit hydraulic to generate a flow of liquid between the liquid inlet 9 and the liquid outlet 10. The liquid outlet 10 is directly opposite the pumping propeller so that the liquid flows out of the hollow body 1 through the liquid outlet 10 in a direction corresponding to the flow of liquid generated by the pumping propeller. this flow having a speed oriented along the axis 51 of rotation of the propeller 14.
L'hélice 14 de pompage présente une orientation permettant de générer un débit de liquide avec une composante horizontale vers l'arrière.The pumping propeller 14 has an orientation for generating a liquid flow with a horizontal component to the rear.
De préférence, l'hélice 14 de pompage interposée dans le circuit hydraulique entre l'entrée 9 de liquide et la sortie 10 de liquide présente un axe de rotation incliné faisant avec ladite direction longitudinale et avec le plan 50 théorique de roulage un angle α différent de 90°. Cette hélice 14 est entraînée en rotation par un moteur 12 électrique de pompage qui présente, de préférence, un arbre 13 rotatif moteur parallèle à l'axe de rotation de l'hélice 14.Preferably, the pumping propeller 14 interposed in the hydraulic circuit between the liquid inlet 9 and the liquid outlet 10 has an inclined axis of rotation forming with the said longitudinal direction and with the theoretical rolling plane 50 a different angle α 90 °. This propeller 14 is rotated by an electric pumping motor 12 which preferably has a rotating motor shaft 13 parallel to the axis of rotation of the propeller 14.
Selon l'invention, le moteur de pompage est disposé sous le circuit hydraulique, entièrement à l'extérieur de ce circuit hydraulique, de telle sorte que le dispositif 11 de filtrage du circuit hydraulique peut être retiré de l'appareil par le haut de l'appareil comme précédemment mentionné, sans être gêné par le moteur de pompage. Seule l'hélice 14 de pompage est agencée dans le circuit hydraulique de manière à pouvoir assurer le débit de liquide. Cette hélice 14 de pompage est agencée à l'arrière de l'appareil, à proximité de la sortie 10 de liquide. En d'autres termes, l'hélice 14 de pompage et la sortie 10 de liquide forment la partie terminale du circuit hydraulique.According to the invention, the pumping motor is disposed under the hydraulic circuit, entirely outside this hydraulic circuit, so that the filtering device 11 of the hydraulic circuit can be removed from the apparatus by the top of the hydraulic circuit. as previously mentioned, without being hindered by the pumping motor. Only the pumping propeller 14 is arranged in the hydraulic circuit so as to ensure the flow of liquid. This pumping propeller 14 is arranged at the rear of the apparatus, close to the liquid outlet 10. In other words, the pump propeller 14 and the liquid outlet 10 form the end portion of the hydraulic circuit.
L'arbre 13 rotatif du moteur 12 électrique de pompage traverse une paroi 30 inférieure inclinée délimitant le circuit hydraulique. L'étanchéité est assurée par un joint 18 torique.The rotary shaft 13 of the electric pump motor 12 passes through an inclined lower wall defining the hydraulic circuit. The seal is provided by an O-ring 18.
Selon un mode préférentiel de réalisation, le moteur électrique de pompage est un moteur basse tension. Il peut être alimenté par une alimentation électrique extérieure à l'appareil par l'intermédiaire d'un câble électrique, non représenté sur les figures, qui est relié à l'appareil au niveau d'une zone 19 d'entrée du câble électrique dans l'appareil, tel que représenté sur la figure 1.According to a preferred embodiment, the electric pump motor is a low voltage motor. It can be powered by an external power supply to the device via an electric cable, not shown in the figures, which is connected to the device at an input zone 19 of the electrical cable in the apparatus, as shown in FIG.
La figure 5 comporte une représentation de la circulation de liquide dans le corps 1 creux de l'appareil. Cette circulation est représentée schématiquement sur la figure 5 par des flèches 66. Du liquide entre dans le corps 1 creux par l'entrée 9 de liquide agencée sous l'appareil. Ce liquide passe dans le conduit 15 d'entrée de liquide pour atteindre le dispositif 11 de filtrage. Des turbulences sont générées par le passage au voisinage de la paroi 16 turbulente, maintenant les débris 60 en suspension. Ce dispositif 1 1 de filtrage laisse passer le liquide par le tissu filtrant et retient les débris 60 solides. Le liquide filtré atteint alors la sortie 10 de liquide et est éjectée à l'arrière de l'appareil, dans le bassin d'où il provient. La figure 5 comporte également une représentation de la circulation tourbillonnaire générée par la paroi 16 turbulente immédiatement à l'aval de la paroi 16 turbulente.Figure 5 shows a representation of the circulation of liquid in the body 1 hollow of the device. This circulation is shown diagrammatically in FIG. 5 by arrows 66. Liquid enters the hollow body 1 via the liquid inlet 9 arranged under the apparatus. This liquid passes into the liquid inlet duct 15 to reach the filtering device 11. Turbulence is generated by the passage in the vicinity of the turbulent wall 16, keeping the debris 60 in suspension. This filter device 1 1 passes the liquid through the filter cloth and retains the solid debris 60. The filtered liquid then reaches the liquid outlet 10 and is ejected at the rear of the apparatus, in the basin from which it comes. FIG. 5 also includes a representation of the vortex circulation generated by the turbulent wall 16 immediately downstream of the turbulent wall 16.
La sortie 10 de liquide étant en regard de l'hélice 14 de pompage, le liquide s'écoule hors de l'appareil par cette sortie avec une vitesse V orientée selon l'axe 51 de l'hélice 14 de pompage et ayant une composante longitudinale vers l'arrière qui induit par réaction des efforts, dont la résultante présente une composante longitudinale d'entraînement orientée vers l'avant qui participe à l'entraînement de l'appareil sur la surface immergée.The liquid outlet 10 facing the pumping propeller 14, the liquid flows out of the apparatus through this outlet with a speed V oriented along the axis 51 of the pumping propeller 14 and having a component longitudinally rearward which induces by reaction forces, whose resultant has a longitudinal component of forward drive which participates in driving the apparatus on the immersed surface.
L'orientation de l'effort de réaction hydraulique créé par ce flux de sortie, et donc l'amplitude de sa composante longitudinale, dépendent de l'inclinaison, par rapport au plan 50 théorique de roulage, de l'axe 51 de rotation de l'hélice et de la sortie 10 de liquide. De préférence, cette inclinaison est comprise entre 15° et 45°.The orientation of the hydraulic reaction force created by this output flow, and therefore the amplitude of its longitudinal component, depend on the inclination, with respect to the theoretical plane of rolling, of the axis 51 of rotation of the the propeller and the liquid outlet 10. Preferably, this inclination is between 15 ° and 45 °.
Dans le mode préférentiel de réalisation de l'invention représenté sur les figures, les organes roulants de guidage et d'entraînement de l'appareil comprennent un essieu avant comprenant des roues 2 avant motrices, une de chaque côté, et un essieu arrière comprenant des roues 3 arrière non motrices, une de chaque côté.In the preferred embodiment of the invention shown in the figures, the rolling members for guiding and driving the apparatus comprise a front axle comprising front-wheel drive wheels, one on each side, and a rear axle comprising 3 non-drive rear wheels, one on each side.
En outre, de préférence et tel que représenté sur les figures, l'appareil comprend des brosses 4 agencées à l'avant de l'appareil. Ces brosses 4 sont destinées à assurer un brossage de la surface immergée et à déplacer les débris brossés vers l'arrière de l'appareil en direction de l'entrée 9 de liquide agencée sous l'appareil.In addition, preferably and as shown in the figures, the apparatus comprises brushes 4 arranged at the front of the apparatus. These brushes 4 are intended to ensure a brushing of the immersed surface and to move the brushed debris towards the rear of the apparatus in the direction of the inlet 9 of liquid arranged under the device.
L'appareil comprend en outre au moins un moteur 20 électrique d'entraînement des roues avant 2 motrices. De préférence, l'appareil comprend deux moteurs d'entraînement, un de chaque côté, respectivement pour l'entraînement indépendant de chacune des roues 2 avant. Pour ce faire, chaque roue 2 avant présente une denture 5 interne coopérant avec un pignon entraîné par le moteur 20 d'entraînement correspondant.The apparatus further comprises at least one electric motor for driving the front 2-wheel drive wheels. Preferably, the apparatus comprises two drive motors, one on each side, respectively for the independent drive of each of the front wheels. To do this, each front wheel 2 has an internal toothing 5 cooperating with a pinion driven by the corresponding drive motor 20.
Ces brosses 4 peuvent être de tous types. Selon un mode de réalisation de l'invention, l'appareil comprend deux brosses 4 avant coaxiales. Chaque brosse 4 est adaptée pour être mise en rotation autour d'un axe s 'étendant selon une direction, dite direction transversale, perpendiculaire à la direction longitudinale. Chaque brosse 4 comprend une pluralité d'ailettes 41 s'étendant radialement d'un arbre de brosse formant l'axe de rotation de la brosse 4. Les ailettes 41 sont par exemple en caoutchouc en un matériau plastique résistant. En outre, les brosses 4 sont de préférence également entraînées en rotation à partir d'au moins un moteur 20 électrique d'entraînement des roues 2 avant par l'intermédiaire d'un système à engrenages.These brushes 4 can be of all types. According to one embodiment of the invention, the apparatus comprises two coaxial front brushes 4. Each brush 4 is adapted to be rotated about an axis extending in a direction, said transverse direction, perpendicular to the longitudinal direction. Each brush 4 comprises a plurality of fins 41 extending radially from a brush shaft forming the axis of rotation of the brush 4. The fins 41 are for example made of rubber made of a resistant plastic material. In addition, the brushes 4 are preferably also rotated from at least one electric drive motor 2 of the front wheels 2 via a gear system.
Ainsi, dans le mode de réalisation représenté, les organes roulants sont constitués des roues avant 2 motrices, des roues 3 arrière non motrices et des brosses 4 qui participent à l'entraînement et au guidage de l'appareil sur la surface immergée. Quoiqu'il en soit, les organes roulants 2, 3, 4 présentent des zones destinées à venir au contact avec la surface immergée qui sont coplanaires et définissent un plan 50 théorique de roulage. La direction longitudinale d'avancement de l'appareil est parallèle à ce plan 50 théorique de roulage. Les roues avant 2 présentent de préférence un diamètre compris entre 100 mm et 500 mm, notamment compris entre 150 mm et 250 mm. Selon le mode de réalisation des figures, les roues avant 2 présentent un diamètre de l'ordre de 200mm. De la sorte, ces roues avant 2 facilitent le franchissement d'obstacles et présentent une motricité améliorée. Avantageusement, leur bande de roulement périphérique est formée ou revêtue d'un matériau antidérapantThus, in the embodiment shown, the rolling members consist of the front wheels 2 driving, rear wheels 3 non-driving and brushes 4 which participate in driving and guiding the apparatus on the immersed surface. Nevertheless, the rolling members 2, 3, 4 have areas intended to come into contact with the immersed surface which are coplanar and define a theoretical rolling plane 50. The longitudinal direction of advancement of the apparatus is parallel to this theoretical plane of rolling. The front wheels 2 preferably have a diameter of between 100 mm and 500 mm, in particular between 150 mm and 250 mm. According to the embodiment of the figures, the front wheels 2 have a diameter of the order of 200mm. In this way, these front wheels 2 facilitate the crossing of obstacles and have improved motor skills. Advantageously, their peripheral tread is formed or coated with a non-slip material
Les roues 2 avant et les brosses 4 constituent des organes roulants avant moteurs 2, 4 qui s'étendent en saillie vers l'avant par rapport aux autres éléments constitutifs de l'appareil, notamment le corps creux, de façon à former la partie extrême avant de l'appareil et à venir en premier en contact avec un obstacle rencontré au cours du déplacement vers l'avant. De plus, selon un mode de réalisation préférentiel de l'invention, l'appareil comprend également une poignée 7 de manœuvre permettant à un utilisateur de porter l'appareil pour l'immerger dans un liquide et le ressortir de ce dernier. Cette poignée 7 est de préférence agencée à l'opposé de la sortie 10 de liquide de façon que lorsque le corps 1 creux est suspendu par cette poignée, l'appareil bascule spontanément sous l'effet de la gravité dans une position dans laquelle la sortie 10 de liquide est située sous l'entrée 9 de liquide, ce qui permet une vidange de l'appareil. Lors du passage de l'appareil de la position de nettoyage à la position de vidange, les débris aspirés par l'appareil sont maintenus dans le dispositif de filtrage et ne sont pas susceptibles de ressortir de l'appareil. II va soi que l'invention peut faire l'objet de nombreuses variantes de réalisation et applications.The wheels 2 before and the brushes 4 constitute organs driving wheels 2, 4 which protrude forwardly with respect to the other components of the apparatus, in particular the hollow body, so as to form the front end portion of the apparatus and to come first in contact with an obstacle encountered while moving forward. In addition, according to a preferred embodiment of the invention, the apparatus also comprises a maneuvering handle 7 allowing a user to wear the device to immerse in a liquid and out of the latter. This handle 7 is preferably arranged opposite the liquid outlet 10 so that when the hollow body 1 is suspended by this handle, the apparatus switches spontaneously under the effect of gravity in a position in which the outlet 10 liquid is located under the inlet 9 of liquid, which allows a drain of the device. When the appliance is moved from the cleaning position to the emptying position, the debris sucked by the appliance is held in the filtering device and is not likely to come out of the appliance. It goes without saying that the invention can be the subject of numerous variants and applications.
Par exemple, selon un mode de réalisation non représenté sur les figures, le dispositif 11 de filtrage peut présenter plusieurs parois turbulentes agencées dans le dispositif 11 de filtrage. En outre, le dimensionnement et la conception de l'appareil, notamment de son circuit hydraulique, sont sujets à des infinités de variantes. En outre l'invention s'applique à un appareil bidirectionnel capable de mouvement rétrograde. For example, according to an embodiment not shown in the figures, the filtering device 11 may have several turbulent walls arranged in the filtering device 11. In addition, the design and design of the device, including its hydraulic circuit, are subject to infinite variants. In addition, the invention applies to a bidirectional apparatus capable of retrograde movement.

Claims

REVENDICATIONS 1/ - Appareil nettoyeur de surface immergée comprenant : - un corps (1) creux et des organes (2, 3, 4) de guidage et d'entraînement dudit corps (1) sur la surface immergée dans un sens d'avancement privilégié et selon une direction principale d'avancement, dite direction longitudinale, - une chambre (8) de filtration ménagée dans ledit corps (1) creux et présentant : au moins une entrée (9) de liquide dans le corps (1) creux située à la base et à l'avant dudit corps (1) creux, . au moins une sortie (10) de liquide hors du corps CLAIMS 1/ - Submerged surface cleaning device comprising: - a hollow body (1) and members (2, 3, 4) for guiding and driving said body (1) on the submerged surface in a preferred direction of advancement and in a main direction of advancement, called the longitudinal direction, - a filtration chamber (8) provided in said hollow body (1) and having: at least one liquid inlet (9) in the hollow body (1) located at the base and at the front of said hollow body (1),. at least one outlet (10) of liquid outside the body
(1) creux située à distance de la base dudit corps (1) creux,(1) hollow located at a distance from the base of said hollow body (1),
. un circuit hydraulique adapté pour assurer une circulation de liquide entre chaque entrée (9) et chaque sortie (10), à travers un dispositif (11) de filtrage comprenant des parois filtrantes et logé dans la chambre (8) de filtration, sous l'effet d'un dispositif (12, 13, 14) de pompage, caractérisé en ce qu'il comprend :. a hydraulic circuit adapted to ensure circulation of liquid between each inlet (9) and each outlet (10), through a filtering device (11) comprising filter walls and housed in the filtration chamber (8), under the effect of a pumping device (12, 13, 14), characterized in that it comprises:
- au moins une sortie (10) de liquide hors du corps creux, dite sortie arrière, décalée vers l'arrière selon la direction longitudinale de chaque entrée (9) de liquide avec laquelle elle est en communication via le circuit hydraulique,- at least one liquid outlet (10) out of the hollow body, called rear outlet, offset rearwardly in the longitudinal direction of each liquid inlet (9) with which it is in communication via the hydraulic circuit,
- une paroi rigide, dite paroi (16) turbulente, agencée dans le dispositif (11) de filtrage, en amont des parois filtrantes, et s'étendant selon une direction non parallèle à au moins une direction reliant une entrée (9) de liquide et une sortie (10) arrière. 21- Appareil selon la revendication 1, caractérisé en ce que ledit dispositif (11) de filtrage comprend une ouverture (54) avant ménagée en regard d'une extrémité supérieure d'un conduit (15) d'entrée de liquide s'étendant à partir d'au moins une entrée (9) de liquide, cette ouverture (54) avant étant en communication avec chaque entrée (9) de liquide et une poche (55) de filtration et de récupération des débris délimitée par des parois (56, 57, 58, 59) filtrantes et qui s'étend vers chaque sortie (10) arrière, ledit conduit (15) d'entrée présentant une paroi arrière transversale qui forme ladite paroi (16) turbulente.- a rigid wall, called turbulent wall (16), arranged in the filtering device (11), upstream of the filter walls, and extending in a direction not parallel to at least one direction connecting a liquid inlet (9) and a rear outlet (10). 21- Apparatus according to claim 1, characterized in that said filtering device (11) comprises a front opening (54) provided facing an upper end of a liquid inlet conduit (15) extending to from at least one liquid inlet (9), this front opening (54) being in communication with each liquid inlet (9) and a pocket (55) for filtration and recovery of debris delimited by walls (56, 57, 58, 59) filters and which extends towards each rear outlet (10), said inlet conduit (15) having a transverse rear wall which forms said turbulent wall (16).
3/- Appareil selon la revendication 2, caractérisé en ce que ledit conduit (15) d'entrée s'étend selon une direction, dite direction (63) d'entrée de liquide, formant avec au moins une direction (62) moyenne passant par l'ouverture (54) avant et une sortie (10) arrière en communication avec cette ouverture avant, un angle (β) aigu, de manière à favoriser les turbulences de liquide dans la poche (55) de filtration et de récupération des débris.3/- Apparatus according to claim 2, characterized in that said inlet conduit (15) extends in a direction, called direction (63) of liquid inlet, forming with at least one direction (62) average passing by the front opening (54) and a rear outlet (10) in communication with this front opening, an acute angle (β), so as to promote liquid turbulence in the pocket (55) for filtration and recovery of debris .
Al- Appareil selon l'une des revendications 2 ou 3, caractérisé en ce que ladite poche (55) de filtration et de récupération des débris s'étend immédiatement à l'aval de ladite ouverture (54) avant et sous cette dernière.Al- Apparatus according to one of claims 2 or 3, characterized in that said pocket (55) for filtration and recovery of debris extends immediately downstream of said opening (54) before and under the latter.
5/- Appareil selon l'une des revendications 2 à 4, caractérisé en ce que chaque sortie (10) arrière est située sous ladite ouverture (54) avant du dispositif (11) de filtrage.5/- Apparatus according to one of claims 2 to 4, characterized in that each rear outlet (10) is located under said front opening (54) of the filtering device (11).
61- Appareil selon l'une des revendications 2 à 5, caractérisé en ce que ladite paroi (16) turbulente s'étend sur plus de 75% de la hauteur maximale de la poche (55) de filtration et de récupération des débris.61- Apparatus according to one of claims 2 to 5, characterized in that said turbulent wall (16) extends over more than 75% of the maximum height of the pocket (55) for filtration and recovery of debris.
Il- Appareil selon l'une des revendications 2 à 6, caractérisé en ce que ladite poche (55) de filtration et de récupération des débris comporte une ossature (26) rigide et une nappe filtrante s'étendant dans des ouvertures ménagées par l'ossature (26) rigide.II- Apparatus according to one of claims 2 to 6, characterized in that said pocket (55) for filtration and recovery of debris comprises a rigid framework (26) and a filter sheet extending into openings provided by the rigid frame (26).
8/- Appareil selon l'une des revendications 1 à 7, caractérisé en ce que le circuit hydraulique comprend au moins une hélice (14) de pompage axial disposée à l'aval du dispositif (11) de filtrage de façon à générer un débit de liquide dans une sortie (10) arrière, ladite hélice (14) de pompage axial étant accouplée à un moteur (12) d'entraînement disposé sous une portion arrière du dispositif (11) de filtration.8/- Apparatus according to one of claims 1 to 7, characterized in that the hydraulic circuit comprises at least one axial pumping propeller (14) disposed downstream of the filtering device (11) so as to generate a flow rate of liquid in a rear outlet (10), said axial pumping propeller (14) being coupled to a drive motor (12) disposed under a rear portion of the filtration device (11).
91- Appareil selon la revendication 8, caractérisé en ce que ladite hélice (14) de pompage axial est disposée dans un carénage (48) cylindrique formant la sortie (10) de liquide. 10/- Appareil selon l'une des revendications 8 ou 9, caractérisé en ce que l'hélice (14) de pompage axial et ledit carénage (48) cylindrique sont orientés de façon à générer un débit de liquide selon une direction faisant avec ladite direction longitudinale, un angle non nul et différent de 90°.91- Apparatus according to claim 8, characterized in that said axial pumping propeller (14) is arranged in a cylindrical fairing (48) forming the liquid outlet (10). 10/- Apparatus according to one of claims 8 or 9, characterized in that the axial pumping propeller (14) and said cylindrical fairing (48) are oriented so as to generate a flow of liquid in a direction making with said longitudinal direction, a non-zero angle and different from 90°.
11/- Appareil selon l'une des revendications 1 à 10, caractérisé en ce qu'il comprend en outre une trappe (6) d'accès au dispositif de (11) filtrage, ménagée sur une paroi extérieure du corps (1) creux et adaptée pour permettre le démontage et l'extraction du dispositif (11) de filtrage hors du corps (1) creux en vue de son nettoyage.11/- Apparatus according to one of claims 1 to 10, characterized in that it further comprises a hatch (6) for access to the filtering device (11), provided on an exterior wall of the hollow body (1). and adapted to allow the filtering device (11) to be dismantled and extracted from the hollow body (1) for cleaning.
12/- Appareil selon la revendication 11, caractérisé en ce que ladite trappe (6) d'accès est ménagée sur la paroi supérieure du corps (1) creux. 13/- Appareil selon l'une des revendications 11 ou 12, caractérisé en ce que ledit dispositif (11) de filtrage comprend des nervures (25) s 'étendant latéralement de chaque côté du dispositif (11) de filtrage et présentant une forme et des dimensions conformées et conjuguées à la forme et aux dimensions de rainures solidaires du corps (1) creux de façon à pouvoir coulisser le dispositif (11) de filtrage le long des rainures pour extraire le dispositif (11) de filtrage du corps (1) creux par ladite trappe (6) d'accès. 12/- Apparatus according to claim 11, characterized in that said access hatch (6) is provided on the upper wall of the hollow body (1). 13/- Apparatus according to one of claims 11 or 12, characterized in that said filtering device (11) comprises ribs (25) extending laterally on each side of the filtering device (11) and having a shape and dimensions shaped and combined with the shape and dimensions of grooves integral with the hollow body (1) so as to be able to slide the filtering device (11) along the grooves to extract the filtering device (11) from the body (1) hollow through said access hatch (6).
EP08865884A 2007-12-21 2008-12-18 Apparatus for cleaning submerged surface with eddy filtration Active EP2235298B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0708994A FR2925549B1 (en) 2007-12-21 2007-12-21 IMMERSION SURFACE CLEANING APPARATUS WITH TURBULENT FILTRATION
PCT/FR2008/052366 WO2009081056A2 (en) 2007-12-21 2008-12-18 Apparatus for cleaning submerged surface with eddy filtration

Publications (2)

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EP2235298A2 true EP2235298A2 (en) 2010-10-06
EP2235298B1 EP2235298B1 (en) 2011-08-31

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US (1) US8627533B2 (en)
EP (1) EP2235298B1 (en)
AT (1) ATE522681T1 (en)
AU (1) AU2008339715B2 (en)
CA (1) CA2709866C (en)
ES (1) ES2372792T3 (en)
FR (1) FR2925549B1 (en)
PT (1) PT2235298E (en)
WO (1) WO2009081056A2 (en)
ZA (1) ZA201005171B (en)

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AU2008339715B2 (en) 2014-08-07
FR2925549A1 (en) 2009-06-26
ES2372792T3 (en) 2012-01-26
US20110000031A1 (en) 2011-01-06
CA2709866A1 (en) 2009-07-02
PT2235298E (en) 2011-12-22
AU2008339715A1 (en) 2009-07-02
ATE522681T1 (en) 2011-09-15
WO2009081056A3 (en) 2009-10-15
ZA201005171B (en) 2012-01-25
FR2925549B1 (en) 2012-08-10
US8627533B2 (en) 2014-01-14
WO2009081056A2 (en) 2009-07-02
CA2709866C (en) 2015-04-21
EP2235298B1 (en) 2011-08-31

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