FR3120495A3 - Water tank wall cleaning system with active rollers - Google Patents

Abstract

Device (1) for treating the internal walls (3) of aquatic basins (4), comprising a peripheral frame (2) in the shape of a quadrilateral carrying at least two suction cup heads (10) and a mobility assembly for moving the treatment device (1) along a wall (3) to be treated, at least one of the sides of the frame (2) carrying a rotating cleaning roller (38) arranged to move in rotation around the axis of the frame. FIGURE 2

Description

Water tank wall cleaning system with active rollers

The present invention relates to a system for treating the walls of aquatic basins. It relates more particularly to a system for treating the internal walls of aquatic basins comprising complementary treatment means.

Aquatic basins such as aquariums are intended to be observed by the public and must therefore have clean walls with a high quality of transparency. The transparent surfaces of the aquatic basins must therefore be regularly cleaned. Most ponds contain several varieties of fish and marine plants, often a source of various types of dirt and leading to the deposit of biofilms along the sides of the pond. Biofilms can easily hamper the visibility of an aquarium after just a few days. Wall cleaning work must therefore be repeated at regular intervals to prevent the biofilm from becoming too thick and difficult to remove.

Different methods of the prior art make it possible to carry out the cleaning of the transparent surfaces of aquariums. Often, the known methods require not only intrusive means that are harmful to the forms of life present in the aquatic basins, but also heavy human intervention that is not easily implemented.

In general, the cleaning of transparent surfaces of aquatic basins is carried out by hand. Large ponds are often cleaned by operators placed on available surfaces above the pond. They use poles fitted with brushes or sponges to scrub the walls. The movements made are irregular and certain areas may be overlooked. The quality of the cleaning is often approximate due to the application of a non-constant friction force and a random number of passes.

Other cleaning modes are also known. Systems are known, for example, comprising an element internal to the basin and an element external to the basin, the two elements cooperating together thanks to a magnetic effect. An operator, placed outside the pool, can then move the external element, thereby dragging the internal element.

For example, patent application EP2012581 proposes a device for cleaning aquarium windows, and in particular internal aquarium windows. This device includes an element that can be positioned on the inner wall of the aquarium glass. The device also comprises an external element which is positioned on the external face of the wall. The internal and external elements of the device are respectively attracted by the magnetic force so that the internal element of the device follows the movements of the external element. A cleaning surface is installed within the device. This surface faces directly against the inside wall of the aquarium. This device facilitates the cleaning of small walls. For large walls, often high, the operator is forced to use various means to be able to cover the entire surface.

Document EP1947932 also relates to an aquarium cleaning device having an internal component which comprises a plate serving as a cleaning surface, as well as an alternatively operative cleaning component, located on a surface opposite the surface to be cleaned. A magnetic element is placed on the plate and a means of flotation appears at one end of the plate. An exterior component has a body that attaches to the exterior surface of a wall of the aquarium. A second magnetic element is carried by the body, such that the body can be positioned between the two magnetic elements with the cleaning surface adjacent to the aquarium wall. By moving the body between the first and second positions, the internal component is moved inside the aquarium in order to clean the different surfaces.

The state of the art, as illustrated by the previously cited documents, offers systems for polishing and/or cleaning aquarium surfaces using different magnetic mechanisms. However, such methods have certain drawbacks. The magnetic force necessary for the surface treatment involves installing two elements on either side of the wall of the aquatic basin to be treated. This system also makes it necessary to have easy outside access regardless of the layout of the walls to be cleaned, which is not always the case in practice. The treatment technique, in particular by magnetic mechanisms, is very often limited to relatively thin walls, which excludes the treatment of large aquatic basins, whose walls can reach several tens of centimeters in thickness. Also, the setting in motion of the magnetic element fixed on the internal wall of the aquatic basin is generated by the setting in motion of the external element, often by human intervention, excluding the automation of the process. These different systems do not make it possible to adjust or vary the intensity of the force applied to the cleaning surface. Finally, the cleaning face inside the basin is quickly saturated with dirt and biofilm, considerably reducing the quality of cleaning.

There are also known treatment systems provided with displacement means entirely internal to the pool, such as for example that of application FR3067563, which describes a system for treating the walls of aquatic pools comprising a treatment head provided with a containment provided with an opening that can be oriented towards the wall to be treated, said treatment head being movable on a support using a treatment displacement motor to allow the treatment of said wall, the support consisting of a repositionable mobile support capable of being fixed to the wall to be treated by suction cups and comprising a movement rail for treatment on which the treatment head can move, a translation rail making it possible to translate the mobile support when the treatment head is stop and fixed against the surface in repositioning mode of the mobile support.

The document FR3033229 describes a system for treatment by polishing the internal walls of aquatic basins comprising an abrasive mixing tank and a surface treatment head in fluid communication with the abrasive mixing tank, rails making it possible to move the treatment head along of the wall to be treated, and means making it possible to supply the treatment head with a substantially continuous flow of abrasive mixture.

These last two systems make it possible to ensure reliable, precise guidance without risk of deviating from the planned trajectory, but require a heavy, cumbersome and costly installation. In addition, the imposing span of the rails makes these systems incompatible with pools with difficult access.

The document FR2557059 describes a vehicle with suction cups capable of circulating on vertical surfaces. The suction cups are arranged so as to form tracks, arranged on each side of the vehicle. The suction cups of this vehicle serve as a mobile for travel purposes.

Document FR2010190 describes a multifunction device able to move along a wall. According to a particular embodiment, the device is suitable for cleaning the walls of swimming pools. The working head forms a single large suction cup. Wheels are arranged on the edges of the working head to ensure movement. The mobile is therefore integrated into the single suction cup head.

The document US3337889 relates to a device for cleaning the internal walls of large basins such as aquariums. The working head forms a single large suction cup. Wheels are arranged on the edges of the working head to ensure movement. The mobile is therefore integrated into the single suction cup head.

The document WO2020250120 describes a device for treating the internal walls of aquatic basins comprising a rectangular support that can be positioned on a wall to be treated thanks to the action of a plurality of suction cup heads placed on the support. The suction cup heads allow, on the one hand, to fix the support against a surface to be treated, and on the other hand to treat the surface thanks to a cleaning action. A mobile with motorized wheels makes it possible to move the device along the walls to be treated. This device makes it possible to carry out cleaning tasks in a simple and practical way. However, despite the large surface of the rectangular support, the treatment heads are widely spaced from each other, forcing the operator to perform several passes with significant overlapping areas, strongly impacting the treatment time.

To overcome these various drawbacks, the invention provides various technical means.

First of all, a first objective of the invention consists in providing a treatment system, in particular for cleaning the walls of aquatic basins, which is simple, inexpensive, and makes it possible to reduce the treatment time significantly.

Another objective of the invention consists in providing a treatment system, in particular for cleaning the walls of aquatic basins, which makes it possible to ensure precise and rigorous monitoring of the trajectory followed along the wall to be treated.

To do this, the invention provides a device for treating the internal walls of aquatic basins, comprising a peripheral frame in the shape of a quadrilateral carrying at least two suction cup heads and a mobility assembly for moving the treatment device along a wall. to be treated, at least one of the sides of the frame carrying a rotating cleaning roller arranged rotatably around the axis of the frame.

The system allows the cleaning and the elimination of the biofilm present on the submerged walls of aquariums or any wall of aquatic basins. Cleaning rollers provide a large treatment surface and can significantly reduce treatment time. The suction cup heads can be used only for fixing the device against a wall to be treated or, alternatively, in addition to the fixing effect, they can also contribute to cleaning the walls, increasing the effectiveness of the device accordingly.

According to an advantageous embodiment, the rotary cleaning roller comprises a cylindrical body carrying a plurality of peripheral scrapers distributed over the periphery of the body.

The scrapers allow excellent contact with the surface to be treated. The scraper edges work by scraping and lifting the impurities to be cleaned, for optimal efficiency.

According to an advantageous embodiment, the rotary cleaning roller is actuated by an electric motor arranged in the axis of the cylindrical body.

According to an advantageous embodiment, the device comprises two cleaning rollers arranged one opposite the other.

Advantageously, the two rollers are arranged to rotate in opposite directions.

According to an advantageous embodiment, the device comprises four suction cup heads arranged at the corners of the frame.

According to an advantageous variant, the treatment device comprises only two suction cup heads, these being arranged on the sides of the frame adjacent to the rollers. This embodiment makes it possible to optimize the active surfaces, and to reduce the costs, to make it possible to produce a product variant at a particularly attractive cost.

These different examples of implementation make it possible to increase the efficiency of the device by increasing the active surfaces, and therefore by reducing the treatment time accordingly. The location of the suction cup heads at the four corners of the frame makes it possible to treat hard-to-reach areas of the walls to be treated, such as the corners and low areas at the bottom of the pool. Continuous active surfaces are thus obtained over the entire height of the device, with no inactive zone. When a lateral movement is performed, the entire surface scanned by the device is treated, avoiding the need to perform multiple passes over the same surface.

According to an advantageous embodiment, said mobility assembly comprises a motorized mobile with wheels, rollers or caterpillars, positioned in the center of the frame and connected to the chassis by a mobile support, said mobile being orientable according to two angularly spaced rolling positions 90 degrees from each other.

Advantageously, the mobile includes an angular actuator arranged to allow the orientation of the mobile relative to the processing device.

All the implementation details are given in the following description, supplemented by Figures 1 to 12, presented solely for the purpose of non-limiting examples, and in which:

Fig.1

the is a schematic representation of an exemplary embodiment of a treatment system according to the prior art, using a mobility assembly with a motorized mobile;

Fig.2

the is a schematic representation of an embodiment of a treatment system, in particular for wall cleaning, using suction cup heads and cleaning rollers;

Fig.3

the is a schematic cross-section of an example of a cleaning roller;

Fig.4

the is an alternative embodiment of the exemplary cleaning system of the ;

Fig.5

the is a schematic representation of an embodiment of a motorized mobile seen from the side;

Fig.6

the is a schematic representation of an embodiment of a motorized mobile seen from above;

Fig.7

the is a schematic representation of an exemplary embodiment of a treatment system, in particular for wall cleaning, using a mobility assembly with a motorized mobile oriented to perform a movement along the Y axis;

Fig.8

the is a schematic representation of an exemplary embodiment of a treatment system, in particular for wall cleaning, using a mobility assembly with motorized mobile oriented to perform a movement along the X axis;

Fig.9

the is a front view from outside of a water basin of an example working disk;

Fig.10

the is a front view of an alternative embodiment of the working disk of the ;

Fig.11

the is a schematic representation of an embodiment of a treatment head;

Fig.12

the is a schematic representation of another embodiment of a treatment head.

WALL TREATMENT DEVICE

The is a schematic representation of an embodiment of a device 1 for treatment by wall cleaning according to the prior art. A set of four dual-function dynamic suction cup heads 10 make it possible, on the one hand, to fix the system 1 to a wall 3 to be cleaned and, on the other hand, to carry out the cleaning of the wall by means of a mechanical action of friction not abrasive, for example using a wall interface layer 14 which is specifically adapted to perform this cleaning function, as described in the following in relation to FIGS. 9 to 12. In the example illustrated , the dynamic heads 10 are provided at the four corners of the treatment system in order to facilitate access to the edges and corners of the walls 3 to be treated. The suction cup heads 10 are interconnected by a frame 2, in this example taking the form of an assembly of tubes in the shape of a square or rectangle. Frame 2 forms a peripheral quadrilateral inside which a mobile (described later) is arranged centrally. Other types of configurations can be provided.
MOBILE WITH MOTORIZED WHEELS

To move the treatment device, a mobile 30 comprises one or more wheels 31 or rollers or caterpillars arranged so as to contact the wall 3 to be treated in order to roll on the latter.

For the purposes of simplification, the figures only illustrate exemplary embodiments in which the mobile comprises wheels or rollers 31. In these various examples, the wheels or rollers can be replaced by caterpillars.

When the mobile 30 comprises a single wheel or roller, the latter can pivot through 90° at the center of the processing device 1 thanks to an angular actuator, and it is driven by a sealed motor.

When the mobile 30 comprises several wheels or rollers, two of its parallel sides each comprise a sealed motorization capable of driving all the wheels on the same side. When the mobile 30 includes caterpillars, two of its parallel sides each include a sealed motorization capable of driving the caterpillar on the same side. All these sets are preferably controlled remotely, for example using a suitable remote control.

The action of the wheels, rollers or tracks against the wall allows the treatment device to be moved. The suction power of the dynamic suction cup heads is dosed and adapted so as to allow both a fixing force against this wall as well as sufficient friction of the interface layer 14 to ensure cleaning of the wall, while allowing movement along it by the action of wheels, rollers, tracks. The value of this adapted suction force can be obtained by the assistance and the action of one or more calibrated springs advantageously arranged between the frame 2 of the treatment device and the mobile wheel, caterpillar or roller 30, and thus allow optimum adhesion of the latter against the wall 3.

A mobile support 36, in this example a rod, makes it possible to connect the mobile 30 to the frame 2 of the treatment device. For more stability and a good dynamic balance, the mobile 30 is arranged in the center of the frame 2. The motorizations and the discs of the suction cup heads are preferably provided for rotation in the opposite direction in order to compensate for the torque effect which tends to rotating a single head in the opposite direction of the disc drive motor.

The mobile 30 carrying the wheels, rollers or tracks can pivot on itself. According to a first mode, the pivoting is carried out for example: by rotating wheels, rollers or caterpillars simultaneously and at equivalent speed, but in the opposite direction for each side of the mobile. After pivoting, the wheels, rollers or tracks can be rotated simultaneously and at equivalent speed in the same direction and thus allow the treatment system to be moved in all useful directions.

A second pivoting mode uses a rotary actuator 33 connected to all the roller wheels or tracks by an axis 34 of the rotary actuator.

In both cases, the axis of rotation of the mobile 30 is at the center of the frame 2 of the processing device.

The mobile mounted pivoting allows orientation of all the wheels, rollers or tracks in two unique and exclusive X and Y reference directions. Preferably, movements in any other direction are inhibited or blocked. This mode is illustrated in figures 7 and 8. This mode ensures good traceability of the trajectory followed and to be followed along the wall to be treated by ensuring that the entire surface is treated. For example, to perform processing by succession of parallel lines, the system moves along the X axis to the end of a line, then performs a movement along the Y axis to the next line, then resumes a movement along the X axis in the opposite direction. The system can thus move over the entire surface to be treated while avoiding deviating from the trajectory. Keeping traceability by keeping the starting reference facilitates the management of the treatment path, avoiding leaving untreated areas. This mode also makes it possible to ensure movement in successive parallel columns or a hybrid mode, for example by performing successive rectangles. As a variant, the displacement mode exclusively along the X or Y axis by default can be deactivated, for example for an occasional displacement where one wishes to go directly to a precise point of a wall, to make a localized retouch or other .

According to yet another variant, the processing device 1 comprises an automated system. This system allows, when a change of direction command is actuated on the remote control, the stopping of the movement of the processing device 1, then the repositioning of the mobile 30 along the X or Y axis, then the resumption of the movement of the treatment 1 in the desired direction automatically, as soon as the repositioning limit switch system is activated. This driving aid for the processing device 1 further optimizes its mode of movement in two unique and exclusive X or Y reference directions mentioned above.

CLEANING ROLLER

FIGS. 2, 3 and 4 illustrate examples of a device 1 for treating internal walls 3 of aquatic basins 4, in which at least one of the sides of the frame 2 carries a rotating cleaning roller 38 . The roller turns on itself around the axis of the frame. A mobility assembly as previously described makes it possible to move the processing device.

In the embodiment of the , the device comprises four suction cup heads 10 arranged at the four corners of the frame 2, and, on the two vertical sides of the frame, two cleaning rollers 38 arranged one vis-à-vis the other. Thanks to this arrangement, the entire area located on the quadrangle of the frame comprises active surfaces, for maximum efficiency and greatly reduced processing time. A double advantage comes from the fact that the active areas of the suction cup heads 10 and of the rollers 38 are complementary. Indeed, the rollers provide a large active surface to treat large wall surfaces, while the suction cup heads are able to access areas that are difficult to access such as the corners of the walls and the pool bottom area. In addition, the complementary active surfaces provide a continuous, seamless treatment surface, avoiding the need to perform multiple passes over the same location.

In the embodiment of the , the frame 2 comprises, on two of its opposite sides, two suction cup heads 10, and, on the other two sides of the frame, two cleaning rollers 38 arranged one vis-à-vis the other.

As depicted at , the rotary cleaning roller 38 comprises a cylindrical body 39 carrying a plurality of peripheral scrapers 40 distributed over the periphery of the body. The scrapers are either integral with the cylindrical body 39, or attached to the latter.

Alternatively, the cylindrical body does not carry scrapers. The outer surface of the cylindrical body then forms the active surface.

According to yet another variant, on the side facing downwards, the rollers do not extend to the suction cup head in order to minimize the risk of creating eddies when the device performs a treatment in the lower zone of the pelvis.

The also shows a preferential drive mode of the roller 38 by means of an electric motor 41 arranged in the axis of the cylindrical body.

For maximum efficiency and cleaning action on the surfaces to be treated, the two rollers 38 are preferably arranged to rotate in opposite directions to each other.

The scrapers 40 and/or the cylindrical body 39 are advantageously made of flexible material, such as for example a closed-cell foam made for example of polyethylene or polyurethane.

In an exemplary embodiment, the rollers 38 have a length of 400 mm and a diameter of 50 mm. This arrangement makes it possible to divide the processing time by four, while increasing the instantaneous power required by only 25%.
ROTATING DISC AND SUCTION EFFECT

Figures 9 and 10 illustrate embodiments of rotating discs 11 seen from the face likely to be in contact with the wall of the basin 4 to be treated. It is observed that the disc 11, of radius R, comprises a plurality of radial grooves 15 or grooves, that is to say oriented in the direction of the radius R. The grooves are oriented radially from the center of rotation of the disc. In the embodiment of the , a plurality of orifices 16 are arranged around the axis of rotation. Each of the orifices 16 communicates with a groove 15. In the embodiment of the , a single orifice 17 is arranged centrally in the axis of rotation 12 connecting the disc 11 to a motor 13 visible in FIGS. 9 and 10. The central orifice 17 communicates with each of the grooves 15. Due to this or these orifices 16 or 17 and grooves 15, when rotating the disc in the immediate vicinity of a wall to be treated in an aquatic environment, a flow of water is generated between the rear and the front of the disc, either from the rear of the disc 11, then crossing the disc and moving through the radial grooves 15 arranged in the portion of the disc located on the side of the wall. This hydrodynamic flow generates a suction cup or suction effect which tends to press the disc against the wall to be treated. The level of the suction effect is adjustable according to the number and dimensions of the grooves, the diameter of the disc, the material used, and especially the speed of rotation of the disc. This suction cup effect allows the discs to fulfill various hydromechanical functions, as explained in the following.
SINGLE OR DOUBLE FUNCTION SUCTION HEAD

FIGS. 11 and 12 illustrate, in section, examples of a dynamic suction cup head 10 carrying a disk such as that illustrated in or 10. As illustrated, the disc 11 comprises a wall interface layer 14, on the side of the disc provided to interface, with or without contact, with the wall 3 to be treated. The interface layer 14 is either separated from the disc 11, or integral or integral with the disc. Disc 11 is made of a rigid and preferably non-porous material, such as aluminum for example. The grooves 15 and the orifices 16 and 17 are advantageously made in the mass of the disc 11.

Depending on the embodiments, the dynamic suction cup head implements one or two functions. It can in fact generate a suction cup function, as previously described. It can also generate a suction cup effect coupled with a wall treatment effect, for example cleaning or polishing (duo mode).

For the duo mode, the interface layer 14 comprises a treatment surface made of a material allowing cleaning work to be carried out on a wall of an aquatic basin 4, often of PMMA, without however risking damaging the latter. The treatment surface can be made, for example: in polyurethane or polyethylene with variable hardnesses and densities as well as cell dimensions (open or closed) and variable porosities depending on the treatment objectives

For the duo mode, a variant can provide an interface layer consisting of more or less flexible lips, arranged in the extension of the walls of the grooves 15, made directly in the mass of the disc 11 or in that of the interface layer 14. We we are talking here about the walls of the grooves 15 perpendicular to the wall to be treated 3. These lips protrude in height by several millimeters from the surface of the disk 11 or of the interface layer 14. They can represent a length more or less equal to the radius R of disc 11 and be single or double.

Indeed, the presence of these lips, installed in the grooves 15, benefit from the flow of water in the latter to evacuate the biofilm torn from the wall during the rotation of the disc 11.

Thus, in this dual function mode, the interface layer 14 is in contact with the wall to be treated.

For the single-function mode with a simple holding effect, the disk 11 is preferably located slightly at a distance from the wall, for example by a few millimeters, to ensure the hydrodynamic effect, while avoiding contact with the wall.

A motor 13 and an axis 12 oriented along the axis A-A, provided at the level of the suction cup head, allow rotation of the rotary disk 11. When the disk is submerged and is located at a short distance (for example 1 to 2 cm for a disc with a diameter of 100 mm) of a wall to be treated, the rotation of the fluted disc produces a depression which tends to bring the working disc closer to the wall 3, the latter being fixed. The suction cup head 10 is arranged to be able to approach the wall thanks to this effect. For a disk of the diameter as mentioned above, the speed of rotation making it possible to produce the hydrodynamic effect tending to press the disk against the wall to be treated is for example between 800 and 1200 rpm (by way of example only ).

The arrows in FIGS. 11 and 12 illustrate an example of water flow when a suction cup head is in place, against a wall of an aquatic basin 4. The water comes from the rear of the working disk, passes through the orifices 16 or 17 and then communicates with the radial grooves 15. Once the disk is in place, the flow of water continues continuously as long as the rotation of the disk is maintained. In addition to contributing to the suction cup effect, this flow ensures cleaning of the treatment surface to prevent biofilm and other dirt removed during cleaning of the wall from accumulating on the disc and saturating the treatment surface. , preventing the cleaning process from continuing. In this dual function embodiment, the suction cup disc is in direct contact with the wall to be treated. It acts by friction against it to perform a cleaning action.

The suction cup head 10 preferably comprises a peripheral casing 18 arranged coaxially with the axis of rotation 12. This casing comprises a circumferential side wall 19 arranged so as to surround the rotary disc 11. In the examples of FIGS. 11 and 12, the casing extends towards the rear of the rotating discs to surround a portion of the shaft 12. The casing makes it possible to delimit a work zone W inside which the disc performs a cleaning action against the wall at to treat. This work area W is also delimited at the rear of the disc 11 by a cover 24, closing the envelope 18. In the examples illustrated, the cover 24 is in the shape of an inverted U, with a central opening to let the motor shaft 12. Complementary orifices 23, provided in the cover 24, provide fluid communication between the work zone W and the motor zone M. The cover 24 can also be flat or in the shape of a non-inverted U.

An evacuation port 20 is arranged through the side wall 19 of the peripheral casing 18 axially. This tunnel allows the flow of water to leave the envelope to join the basin. The tunnel is advantageously positioned so as to be in the upper zone of the suction cup head 10 during the cleaning phases. This prevents the outgoing water flow from acting against the floor of the pool, which would risk pushing pebbles or particles or dirt towards the working head. If ever a hard and/or abrasive foreign body finds itself between the working disc and the wall to be treated, there would then be significant risks of causing scratches or other damage to the wall. The peripheral envelope 18 provides additional protection against the arrival of such contaminants in the work area W. A filtration element or system can be connected to this evacuation port 20.

To prevent the peripheral casing 18 from exerting too great a force against the wall 3, one embodiment provides for the rotary disc 11 to cooperate with this casing via at least one spring 21. For example, a spring is used. device arranged axially in the extension of the end of the peripheral casing 18 opposite to the work zone W. The spring 21 acts on the one hand on the casing 18 and on the other hand on the cover 24.

Unlike the assembly formed by the disc 11 and the interface layer, the peripheral casing 18 is designed to remain angularly fixed, without rotation, facing the wall to be treated. A circumferential seal or a material with a lower hardness than the wall to be treated is advantageously provided at the contact end of the peripheral casing 18. This seal or this material allows a soft contact with the wall, without risk of cause damage. The connection between the angularly fixed part of the head and the rotating part of the head is ensured by a bearing 22, such as for example a plain or rolling bearing. Figures 11 and 12 illustrate two embodiments of a suction cup head 10. In the embodiment of the rotatable parts include shaft 12, disc 11, interface layer 14, and cover 24. Bearing 22 is arranged between cover and spring 21. In the embodiment of the , the rotatable parts include only the shaft 12, the disc 11 and the interface layer 14. The bearing 22 is in this case arranged between the shaft 12 and the cover 24.

When the rotary disk is driven in rotation, and when it is at a short distance from the wall to be treated, a suction is created, causing the head to be pressed against the wall. Water circulation is carried out. The water circulates in the grooves of the working disc and is ejected laterally and then discharged into the water of the basin. Thus, the water circulates in the friction foam of the disc, ensuring its rinsing and carrying with it the biofilm and other dirt removed from the wall. Furthermore, the faster the working disc rotates, the greater the suction and friction on the wall. Such an arrangement thus makes it possible to place and maintain a working head against a wall to be treated without an operator or even without the aid of a propulsion propeller placed opposite the disc. The hydrodynamic effect generated by the rotation of the grooves makes it possible to perform a suction cup function. Such an arrangement makes it possible to treat large surface walls automatically or semi-automatically without human intervention in the basin.

1. Device for treating the internal walls of aquatic basins
2. Peripheral frame
3. Walls to be treated
4. Aquatic basin
5. -
6. -
7. -
8. -
9. -
10. Dynamic suction cup head
11. Rotating disk
12. Rotating shaft
13. disc motor
14. Wall interface layer
15. Radial grooves
16. Fluid circulation port
17. Fluid circulation hole in the hollow axis of rotation
18. Axial peripheral envelope
19. Circumferential side wall
20. Evacuation light
21. Spring
22. Bearing (slide or bearing)
23. Lid holes
24. Lid
25. -
26. -
27. -
28. -
29. -
30. Mobile with motorized wheels
31. Motorized wheels or rollers or tracks
32. Waterproof motor
33. Angular actuator
34. Actuator shaft
35. Engine support
36. Mobile support
37. Axle
38. Rotating cleaning roller
39. Cylindrical roller body
40. Peripheral scrapers
41. Central axial motor

Claims (9)

Device (1) for treating the internal walls (3) of aquatic basins (4), comprising a peripheral frame (2) in the shape of a quadrilateral carrying at least two suction cup heads (10) and a mobility assembly for moving the treatment device (1) along a wall (3) to be treated, at least one of the sides of the frame (2) carrying a rotating cleaning roller (38) arranged to move in rotation around the axis of the frame. 2. Treatment device according to claim 1, in which the rotary cleaning roller (38) comprises a cylindrical body (39) carrying a plurality of peripheral scrapers (40) distributed over the periphery of the body. 3. Treatment device according to any one of claims 1 or 2, wherein the cleaning roller (38) rotating is actuated by an electric motor (41) arranged in the axis of the cylindrical body. 4. Treatment device according to any one of claims 1 to 3, comprising two cleaning rollers (38) arranged one vis-à-vis the other. 5. Processing device according to claim 4, wherein the two rollers (38) are arranged to rotate in opposite directions. 6. Treatment device according to any one of claims 1 to 5, comprising four suction cup heads (10) arranged at the corners of the frame (2). 7. Treatment device according to any one of claims 1 to 5, comprising two suction cup heads (10) arranged on the sides of the frame adjacent to the rollers (38). 8. Treatment device according to any one of claims 1 to 7, wherein said mobility assembly comprises a motorized mobile (30) with wheels, rollers or caterpillars (31), positioned at the center of the frame (2) and connected to the chassis by a mobile support (36), said mobile (30) being orientable according to two rolling positions angularly spaced 90 degrees from each other. 9. Treatment device according to claim 8, wherein the mobile (30) comprises an angular actuator (33) arranged to allow the orientation of the mobile relative to the treatment device.