EP3183400A1

EP3183400A1 - Underwater cleaning machine

Info

Publication number: EP3183400A1
Application number: EP15749791.8A
Authority: EP
Inventors: Torsten Reuss
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-08-20
Filing date: 2015-08-10
Publication date: 2017-06-28
Anticipated expiration: 2035-08-10
Also published as: WO2016026727A1; EP3183400B1; DE102014012377B3; ES2756712T3

Abstract

The invention relates to an underwater cleaning machine (10) comprising a suction assembly (27) for generating a suction flow for sucking in dirt via at least one suction inlet (65) that is fluidically connected to a dirty water outlet (17) for connecting a pipe (23) or for connecting a separation device (22), in particular a filtering device, for separating dirt sucked in with the suction flow, wherein the cleaning machine has a releasing bristle assembly (80) for releasing dirt from a surface (O) to be cleaned. According to the invention, at least one suction device (50) is provided in addition to the releasing bristle assembly (80), which device operates with a separate suction action to that of the current of the suction flow through the suction inlet (65), in order to hold the releasing bristle assembly (80), by suction, against the surface (O) to be cleaned.

Description

Underwater cleaning machine

The invention relates to an underwater cleaning machine with a suction unit for generating a suction flow for sucking in dirt via at least one suction inlet, the flow connected to a dirty water outlet for connecting a hose or for connecting a separation device, in particular a filter device, for separating dirt sucked in with the suction flow wherein the cleaning machine comprises a release brush assembly for releasing debris from a surface to be cleaned.

Such an underwater cleaning machine is for example in US

8,424,142 B2 or EP 2 570 570 A2. Such an underwater cleaning machine is designed as a cleaning robot and can, for example, clean surfaces of swimming pools.

Usually, an underwater cleaning machine generates a certain pressure force on the substrate or the surface to be cleaned by the negative pressure generated by the suction unit or the suction flow. However, the possibilities of generating a sufficiently large negative pressure are limited. Namely, if the suction pump or the suction unit to provide a higher suction, the underwater cleaning machine is large and cumbersome. Since the underwater cleaning machines should usually also clean walls, they must be balanced so that the negative pressure generated by the suction pump or the suction unit, sufficient contact force is generated to the surface to be cleaned so that the device has sufficient traction and thus along the wall or the wall can go up. The relative weight is for example in the range of about 100-500 g. It is therefore the object of the present invention to provide an improved underwater cleaning machine.

To solve the problem is provided in an underwater cleaning machine of the type mentioned above, in addition to the Lösebürstenanordnung at least one additionally to the flow of the suction through the suction inlet separately sucking suction device is provided for sucking the Lösebürstenanordnung to the surface to be cleaned.

It is a basic idea that by means of the suction device, which acts so to speak in addition to the suction flow, which is sucked in via the at least one suction inlet, the release brush arrangement operates particularly effectively. For example, the suction device is arranged in an inner space of the release brush arrangement. There is expediently also still the suction inlet or at least one suction inlet, so that so to speak in the interior of the Lösebürstenanordnung both, namely on the one hand, the suction inlet, on the other hand, but also the suction device.

The suction device is expediently designed to generate a flow or an intake flow which does not contribute to the suction flow provided for sucking in dirt or which is separate from the suction flow.

A flow direction of the flow or suction flow generated by the suction device expediently runs at an angle or transversely to the suction flow provided for the suction of dirt in the region of the suction inlet. It is possible that a flow direction of the suction flow is approximately tangential or parallel to the surface to be cleaned, while the suction flow, which is loaded with dirt, angular, in particular approximately at right angles or at an angle of 70-90 ° from the surface to be cleaned in the direction the waste water outlet flows. In this connection, it should be explained that the purpose of the suction flow per se is the generation of negative pressure, but not the extraction or removal of dirt.

It is for example possible that the flow velocity of the suction flow generated by the suction unit is significantly greater, for example at least twice or three times greater than a flow velocity of the intake flow. It is even advantageous if the flow velocity of the suction flow is very low, because it essentially serves to form a negative pressure region, i. suck the release brush assembly to the surface to be cleaned.

So that the smallest possible intake flow is sufficient, for example, a seal or seal arrangement is advantageous:

It is preferred if the suction device is surrounded by a seal or a sealing arrangement, in particular a brush arrangement, which ensures that generated by the suction unit flow or water from the environment of the suction device does not or only insignificantly flows in a negative pressure region of the suction.

A sealing arrangement surrounding the suction device or the vacuum region of the suction device expediently has the function of a check valve, that is to say that a suction flow provided for generating negative pressure can flow out of the vacuum region through the sealing arrangement, while a backflow of water into the vacuum region is reduced by the sealing arrangement or avoided by the seal assembly.

The suction device comprises, for example, a suction unit provided for generating the suction flow, a separate suction unit. Such a suction unit can generate a flow separately from the suction flow, the is provided for sucking the Lösebürstenanordnung to the surface to be cleaned. The suction device comprises, for example, a Ansaugrotationskörper. The Ansaugrotationskörper may for example be a propeller or include or have designed to generate a flow contours.

The release brush assembly includes, for example brushes in the form of rollers or more preferably an annular brush. Combinations are readily possible. For example, it is possible for a release brush in the form of a roller to additionally be provided in the interior of a ring-shaped release brush or in a working direction.

Particularly preferred is a plate-like construction, that is, for example, that an annular release brush on an outer plate, in particular in the form of a suction bell, is arranged or this bell so to speak peripherally limited, with one end of the release brush is provided for contact with the surface to be cleaned , In the interior, another plate is then provided, which then carries or forms the suction device.

An advantageous embodiment provides that the at least one suction device comprises a Ansaugrotationskörper with designed to generate a flow contours, such as blades, ribs or the like. By a rotation of the Ansaugrotationskörpers about its axis of rotation, a flow is generated, which is provided for generating a cleaning machine to the substrate or a surface to be cleaned sucking negative pressure. The flow is, for example, a vortex flow. The Ansaugrotationskörper is rotationally driven by a drive arrangement of the cleaning machine. The Ansaugrotationskörper is for example disc-shaped or plate-shaped.

The underwater cleaning machine expediently has a filter device for filtering out dirt sucked in with the suction flow. The Filter device may form an integral part of the cleaning machine or be releasably connectable to the cleaning machine. Thus, therefore, the cleaning machine has expediently a receptacle for a filter device of this type.

The underwater cleaning machine may also include a sump for collecting dirt sucked with the suction stream.

The dirty water outlet is designed, for example, in the manner of a connecting piece. At this example, a hose can be connected, with which the dirty water from the container to be cleaned out, for example, can be pumped into a sewer.

The Ansaugrotationskörper is designed for example as a kind of paddle wheel. But it is also possible that the Ansaugrotationskörper is configured for example in the manner of a cup brush or an annular brush.

It is preferred if the suction device, for example the abovementioned at least one intake rotational body, is arranged in a sealing space of a sealing arrangement, is provided for bearing against the surface to be cleaned. For example, the sealing arrangement comprises an annular sealing brush or sealing lip. As the intake rotating body rotates, it generates a flow in a sense out of the seal space, creating a negative pressure there and thus the suction effect. Located in the seal chamber water is hurled so to speak radially outward, so flows through the seal assembly, which in turn prevents water from flowing back into the seal chamber or at least reduces such flow.

The sealing arrangement is preferably configured in such a way that the intake rotational body is opposite an end face of the sealing arrangement and / or an end face of the release arrangement provided for abutment with the surface to be cleaned. stands back brush assembly. For example, free ends of bristles of a seal brush or release brush protrude in front of the intake rotation body.

This avoids direct contact of the suction rotating body with the surface to be cleaned.

It is preferred that the Lösebürstenanordnung protrudes in front of the seal assembly, in particular the seal brush assembly. This measure has the advantage that in any case the release brushes are in engagement with the surface to be cleaned and can clean them optimally.

A sealing brush, in particular an annular sealing brush, additionally has the additional advantage that it acts or can dissolve dirt.

It should be mentioned at this point that it can be expediently provided that the release brush arrangement or a release brush fulfills the function of the seal brush or seal brush arrangement. For example, a radially inner, surrounding the suction loosening brush at the same time have a sealing function.

It is advantageous if the sealing arrangement yields flexibly, so that any existing unevenness of the surface to be cleaned can be compensated.

The seal assembly may be rotationally fixed relative to a machine housing of the cleaning machine. It is preferred, however, if the seal assembly is also rotationally driven.

An embodiment provides, for example, that the Ansaugrotationskörper and the seal assembly, such as the annular seal brush or sealing lip, rotatably connected to each other. Thus, if the Ansaugrotationskörper is rotationally driven, he takes, so to speak, with the seal assembly. But it is also possible that the seal assembly is rotated separately by the drive assembly. Thus, therefore, the Ansaugrotationskörper and the seal assembly can be driven at different speeds or directions of rotation.

The release brush arrangement provided for releasing dirt from the surface expediently comprises at least one annular release brush. Such an annular release brush is particularly suitable for the fact that the suction or multiple suction devices are provided in its interior.

The at least one annular release brush may be closed in an annular manner, for example. However, it is preferred that the release brush arrangement has a plurality of partially annular or ring segment-like arranged brushes. For example, such brushes could also be referred to as partial ring brushes. A preferred embodiment provides that the release brush arrangement has a plurality of annular release brushes which have an angular distance and / or a radial distance from each other. In the respective distance or through the distances between the dissolving brushes then dirty water can flow, for example in the direction of the suction inlet or the suction inlets.

The release brushes can also be sickle-shaped. Furthermore, it is possible that at least one release brush has a sloping or curved extending end face intended for contact with the surface to be cleaned, i. that, for example, a protruding portion of the end face engages the surface, while another portion of the end face only comes into engagement with the surface when a certain contact pressure acts on the release brush arrangement in the direction of the surface to be cleaned.

The at least one suction inlet or at least one of the suction inlets (if several are present) can be arranged, for example, on an outer circumference of the annular release brush. For example, it is possible that in the Interior of the at least one release brush or the Lösebürstenanordnung the at least one suction device is provided, while outside, preferably very close to the Lösebürstenanordnung, the at least one suction inlet or at least one suction inlet is arranged.

In any case, it is preferably provided that the at least one suction inlet and the release brush arrangement are immediately adjacent.

Particularly favorable, in particular for cleaning close to the edge in the range of, for example, to the surface to be cleaned angular side walls, it is, however, if so to speak, the release brush or Lösebürstenanordnung represents the outside component, in the interior of the other components, namely the at least one suction device, for example the Ansaugrotationskörper, and / or the at least one suction inlet or at least one suction inlet. Thus, therefore, the suctioning components, namely the suction device and the suction inlet, via which the suction flow takes place, so to speak in the interior of the dirt-dissolving components, namely the Lösebürstenanordnung.

An embodiment may for example provide that the at least one suction inlet is arranged between the at least one suction device and the at least one annular release brush.

At this point it should be noted that, for example, a plurality of concentrically arranged annular release brushes can be provided.

The annular release brush and / or the aforementioned annular sealing brush or sealing lip, in particular the sealing arrangement, may for example be annular. But there are also other geometries, such as polygonal Außenumfänge, conceivable without further ado. The suction inlet or the suction inlets are preferably annular, so for example closed in a ring, or partially annular. They may, for example, extend annularly or partially annularly on the inner circumference or outer circumference of the annular release brush. But there are also, for example, in the manner of rows of holes next to each other, also ring-shaped or partially ring-shaped side by side, arranged suction inlets possible.

It is preferred if the Lösebürstenanordnung is driven by a motor, in particular is rotationally driven by a motor. For example, the at least one annular release brush is rotationally driven by the drive arrangement, which is expediently also configured to drive the suction device.

The at least one annular release brush and the Ansaugrotationskörper are expediently arranged concentrically. Preferably, both components rotate about the same axis of rotation.

But it is also quite an eccentric arrangement conceivable, that is, for example, that the release brush rotates eccentrically to the axis of rotation of Ansaugrotationskörpers.

The drive arrangement is expediently configured for rotationally driving the release brush arrangement with a lower, in any case different, speed than the intake rotation body. For example, therefore, the release brush arrangement rotates much slower than the suction device, in particular as the Ansaugrotationskörper.

A particularly preferred embodiment provides that the Ansaugrotationskörper and / or a pump of the suction unit with a about eight times to twenty times, preferably about ten times to twenty times greater speed rotating than the release brush assembly. When the intake rotating body rotates at a relatively high speed, it can develop a high suction force to the surface to be cleaned. In the release brush arrangement, however, it is advantageous if it rotates relatively slowly.

As a result, dissolved dirt is only slightly set in motion, so that it is well sucked. At a high speed of the release brush assembly there is a risk that the dissolved dirt is whirled up by the centrifugal force and thrown away, so it is difficult to suck. The low speed of the release brush assembly also has the advantage that the power requirement of the underwater cleaning machine is low.

Furthermore, it is advantageous if the release brush arrangement has a different direction of rotation than the Ansaugrotationskörper. As a result, a torque compensation is achieved. The handling of the cleaning machine is facilitated. The machine can be moved with little force and controlled. In particular, when the cleaning machine still works, so to speak, automatically, at least for their propulsion corresponding drive wheels or rollers, it is particularly advantageous if act as little as possible by the suction of the propulsion or direction change forces.

It is particularly preferred if the drive arrangement can drive various components with a single drive motor. Thus, an advantageous embodiment of the invention provides that the drive arrangement comprises a coupling gear, for example a planetary gear or another gear transmission, for driving the Lösebürstenanordnung and the annular seal brush or Ansaugrotationskörpers. It is possible that the aforementioned components have different directions of rotation or speeds.

A planetary gear is particularly suitable to arrange concentrically the aforementioned components, that is, for example, that the Ansaugrotationskörper is arranged in the interior of the Lösebürstenanordnung and both Turn components around the same axis of rotation. For example, it is conceivable that the drive motor is coaxial with the planetary gear and the axes of rotation of the Lösebürstenanordnung and Ansaugrotationskörpers.

A preferred embodiment of the invention provides that a central axis of rotation forms the axis of rotation of the suction unit, for example the axis of rotation of a pump wheel for the suction flow and / or the axis of rotation for the Ansaugrotationskörper and / or the axis of rotation for the release brush assembly.

Furthermore, it is expedient if the drive arrangement is additionally designed for driving the suction unit, for example a suction pump. It is particularly preferred if a single drive motor of the underwater cleaning machine drives the suction unit, the suction device and the release brush arrangement.

A preferred embodiment of the invention provides that the drive rotary body and a pump of the suction unit, in particular a pump, are rotatably connected to each other and / or sitting on the same drive shaft or rotary shaft.

It should also be mentioned with regard to the brushes that it is advantageous if the sealing brush arrangement which surrounds the intake rotational body or in any case the suction device has relatively soft but dense bristles which allow flow out of the sealing space but in the opposite direction have a flow-inhibiting effect, as it were. while radially outward, in the Lösebürstenanordnung, relatively hard bristles are advantageously present. The harder bristles are suitable for removing the dirt well from the substrate or the surface. Soft bristles of the seal brush assembly also reduce abrasion on the surface to be cleaned.

The underwater cleaning machine may be, for example, a hand-held underwater cleaning machine. But it is also possible that they are in the Type of cleaning robot is configured, so for example, drive wheels, drive chains or drive belts or other Vorthebsmittel or drive means for movement along a surface to be cleaned along.

The cleaning machine expediently comprises a housing on which a cleaning head is arranged. The cleaning head carries the release brush arrangement. It is preferred if the cleaning head is plate-like. But also a dome-like construction of the cleaning head is possible. In a central region of the cleaning head is advantageously or in addition to

Suction current acting suction provided.

Preferably, the cleaning head carries a coupling gear or transmission gear, with which a driving force of a drive of the cleaning machine can be transferred to the Lösebürstenanordnung. The transmission gear is designed for example to a speed reduction and / or reversal of rotation of a rotational drive force of the drive. Preferably, the transmission gear meshes with a pinion on the suction device, preferably on Ansaugrotationskörper.

Hereinafter, embodiments of the invention will be explained with reference to the drawing. Show it:

Figure 1 is a perspective oblique view of a front part of an underwater cleaning machine

Figure 2 is a side view of the underwater cleaning machine according to

FIG. 1,

Figure 3 is a bottom view of the cleaning machine

FIG. 4 shows a side view of a housing of the cleaning machine and a cleaning head for cleaning a surface, FIG. 5 a perspective oblique view from below of the cleaning machine according to the preceding figures,

FIG. 6 is an exploded view of the cleaning machine of the preceding figures,

7 shows a cross section through the cleaning machine according to FIG. 1, approximately along a section line A-A, FIG.

8 shows a cross section through the cleaning head of the underwater cleaning machine according to the preceding figures, and

9 shows a variant of the underwater cleaning machine obliquely from below, approximately in the view according to FIG. 5.

An underwater cleaning machine 10 is provided for cleaning surfaces O under water. It can be taken for example on a handle 1 only partially shown.

The handle 1 1 is pivotally connected to a housing 15 of the underwater cleaning machine, for example via pivot joints 14. At its front, the housing 15 end region facing the handle 1 1, which is preferably stabformig, a fork 12, the two fork arms 13 itself extend laterally next to the housing 15 over to the pivot joints 14. Of course, other handles would be possible, for example, those that are not hinged to the housing 15 or bow-like handles. An engine, for example, as a pond robot is also possible.

The guidance and handling of the underwater cleaning machine 10 is very simple due to the later still clear technical measures. At the same time the surfaces to be cleaned O are very clean, although the cleaning is gentle. The underwater cleaning machine 10 is also suitable, for example, for cleaning garden ponds or swimming ponds. For example, the underwater cleaning machine 10 can also be guided along sensitive and uneven pond films and cleaned there optimally.

The housing 15 has an upper part 16, on which a dirty water outlet 17 is provided. A suction unit 27 generates, for example, a suction flow 90, which flows through the housing 15 and flows out of the housing 15 at the dirty water outlet 17. The suction unit 27 includes, for example, a pump whose impeller has 28 blades 29 for generating the suction flow 90.

The suction unit 27 is driven by a drive motor 36, for example an electric motor. The drive motor 36 is supplied for example via an electrical supply cable 1 1 A with electrical energy. But it would also be a supply via a battery or a rechargeable battery readily possible.

The dirty water outlet 17 is provided on an upper part 16 of the housing 15, expediently in the region of a filter receptacle 18, which may also be referred to as a receptacle for a separating device.

In the filter holder 18, a separation device 22, for example a filter device, can be accommodated. Alternatively, it is possible to connect to the dirty water outlet 17, for example, a hose 23. About the hose 23 dirty water can be drained, for example, in a sewer or the environment of the water tank to be cleaned, for example, a pond.

The filter holder 18 is closed at the rear by a rear wall 19, so that the filter device or separating device 22 shown only schematically can be used from a front side. In an alternative embodiment of an underwater cleaning machine 100 shown in Figure 9, the housing 15 is provided on its upper side with a cylindrical, annularly closed receptacle 1 18 for a filter device or a separator, so it is only open at the top, what the tightness against the environment improved. A peripheral wall 1 19 of the receptacle 1 18 is closed as a cylindrical and circumferentially.

It is also possible for an underwater cleaning machine according to the invention to have an integral dirt collecting container, for which, for example, the cylindrical receptacle 1 18 which can be easily covered by a lid would be optimally suited.

The bottom of the filter holder 18 forms, for example, a drive cover wall 20 with which the drive motor 36 is covered. The drive cover wall 20 is designed, for example, hood-like and covers the drive motor 36 top side completely and tight.

At a lower end face 24 of the upper part 16, a lid 30 is provided, which covers, so to speak, the receptacle for the drive motor 36 on the underside. Seals and the like are not explained in detail in the drawing, but advantageously available. For example, the cover 30 comprises a cover wall 31, which is screwed by means of screws 26 with the upper part 16. The screws 26, for example, penetrate screw receptacles 33 (preferably bores) of the cover 30 and are screwed into screw receptacles 25 of the upper part 16, which are provided on the end face 24.

To guide the suction flow 90, a pipe 32, for example a short pipe or another pipe element, is provided, which communicates with the dirty water outlet 17 and is connected to the flow. For example, a seal or the like is provided on the outer circumference of the tube 32 at its free end region, which produces a fluid-tight connection to the dirty water outlet 17. The dirty water outlet 17 includes, for example a connecting piece 21, on which the filter device or the hose 23 can be plugged.

The top wall 31 has a motor shaft passage 34 for a motor shaft 37 of the drive motor 36. Further sealing measures, for example shaft seals 34a on the motor shaft passage 34 or between the cover 30 and the upper part 16 are partially not shown, but advantageously present.

The motor shaft 37 is supported in the motor housing of the housing 15 or on a stator of the drive motor 36 or both by means of bearings 38 spaced from each other with respect to the rotational axis direction of the motor shaft 37.

Coupling means 39 for rotational coupling of the drive motor 36 with components to be driven, for example a drive shaft 58, which will be explained later, are provided on a longitudinal end of the motor shaft 37 which is oriented downwards in the drawing.

The drive shaft 58 is rotatably connected to the suction unit 27 or rotatably connected. The drive shaft 58 has, for example, a polygonal or other suitable for rotational drive outer contour and expediently passes through the impeller 28 so that they can drive the impeller 28 and thus the suction unit 27.

A channel body 40, which could also be referred to as the pump housing or housing of the suction unit 27, is arranged on an underside 35 of the cover 30, that is to say also underneath the upper part 16 of the housing 15. The channel body 40 is screwed, for example, to the lid 30 or connected in any other way. It is also possible that the channel body 40 can be easily detachably connected to the cover 30 and thus to the rest of the housing 15 on the basis of, for example, a plug-in mounting or the like. The channel body 40 includes, for example, an outer peripheral wall 41 and a radially inner inner peripheral wall 43. Preferably, the channel body 40 is approximately cylindrical, in particular approximately circular or annular. This need not be. The outer peripheral wall 41 and the inner peripheral wall 43 are connected to each other, for example via unspecified webs or the like.

On the inner circumference of the inner peripheral wall 43, the suction flow 90 flows along, which in a sense leads to a calming. The suction flow 90 leaves, so to speak, the channel body 40 at an outlet 44, which is designed in the manner of a ramp or the like. In any case, the suction flow 90 exits via the outlet 44 in the direction of the tube 32 and thus the dirty water outlet 17. One could also designate the channel provided on the inner circumference of the inner circumferential wall 43 as a steering channel or calming channel 47. This channel is bounded laterally by the bottom wall 46 as well as the cover wall 31 of the cover 30 arranged on the upper end face 45 and by the inner circumference of the inner peripheral wall 43.

At the bottom of the channel body 40 is a receptacle, on whose inner circumference 42 a toothing is present, which will be explained later. The toothing or inner circumference 42 so to speak forms the ring gear of a planetary gear.

In a receptacle 48, for example, a passage opening, the suction unit 27, at least the impeller 28 is added. The impeller 28 generates, so to speak in the interior of the channel body 40, the suction flow 90, which is sucked in via the receptacle 48 from below and leaves the channel body 40 at the outlet 44 again. This is made clear by arrows.

By the suction flow 90, a certain suction effect is already achieved, ie that the cleaning machine 10, for example, to a surface to be cleaned O sucks itself to some extent. An existing in addition to the suction unit 27 suction device 50 generates an additional negative pressure. The suction device 50 includes, for example, a suction rotation body 61 at the bottom of the cleaning machine 10. The suction rotation body 51 rotates about a rotation axis 52 and generates contours 54, such as blades, a flow that is oriented away from the rotation axis 52. The Ansaugrotationskörper 51 hurls, so to speak, water radially outward, directly below the Ansaugrotationskörpers 51, a certain negative pressure and a suction arise.

The suction rotation body 51 is provided with a seal assembly 55 which defines a seal space 56. For example, the sealing arrangement 55 comprises an annular sealing brush 57, in the interior of which the contours 54 or blades are arranged. The water flow generated by the intake rotational body 51, for example a vortex wheel 53, penetrates, as it were, the seal arrangement 55 from radially inward to radially outward, which additionally optimizes the generation of the negative pressure.

The seal assembly 55 is rotatably connected to the Ansaugrotationskörper 51, so it rotates with this. A sealing arrangement in the manner of the sealing arrangement 55 could, however, also be stationary, for example with respect to the housing 15. The seal assembly 55 is arranged, for example, on an outer circumference of the Ansaugrotationskörpers 51.

The Ansaugrotationskörper 51 is rotatably connected to the drive shaft 58, for example screwed to this. Thus, the Ansaugrotationskörper 51 rotates with the speed of the drive motor 36 and also with the speed of the suction unit 27th

At a free end portion of the drive shaft 58, which is provided for connection to the motor shaft 37, for example, to a plugging, a coupling piece 59 is provided. The coupling piece 59 includes, for example, a coupling projection for insertion into a corresponding coupling receptacle of Coupling means 39 of the motor shaft 37. At the coupling receptacle and the coupling projection, for example, polygonal contours or other rotational drive means are provided to rotatably couple the motor shaft 37 and the drive shaft 58 with each other.

But it is also possible that, for example, the coupling means 39 and the coupling piece 59 are permanently engaged. A free end 78 of the drive shaft 58 projects, for example, down in front of the channel body 40 (see, for example, FIG. 4) and can be inserted into the guide channel 62, where it finally engages with the intake rotational body 51 in rotational engagement. For example, one or more locking nuts 79 are screwed onto the free end 78 in order to secure the cleaning head 60 to the housing 15.

The suction rotation body 51 and thus the suction device 50 are arranged on a cleaning head 60 of the underwater cleaning machine 10. The cleaning head 60 has, for example, a plate-shaped housing 61, from which a channel section 62a, for example in the manner of a dome, projects with a guide channel 62 in the direction of the housing 15 of the cleaning machine 10.

In the guide channel 62 bearings 63 are provided for pivotally mounting the drive shaft 58 and also in this way also for pivotal mounting of the Ansaugrotationskörpers 51st This is centrally received in a cleaning area 64 of the cleaning head 60 and rotates there. Thus, therefore, the suction device 50 so to speak centrally in the cleaning head 60 generates a negative pressure. This negative pressure acts in addition to the negative pressure caused by the suction flow 90.

Water flows in a stream 91 from radially outside into the cleaning region 64 and flows into the channel body 40 via suction inlets 65 on a cover wall 66 of the cleaning head 60. This is indicated in Figure 6 by arrows. The cleaning head 60 is provided with a release brush assembly 80, which dissolves dirt from the surface to be cleaned O, brushed off, so to speak. The cleaning head 60 and thus the release brush assembly 80 are rotationally driven

In the cleaning head 60, a planetary gear 67 is provided, that is, a transmission gear to transmit the rotational movement of the drive shaft 58 to the cleaning head 60. The transmission gear in the form of, for example, the planetary gear 67 reduces the rotational speed of the drive motor 36 to a lower speed at which the cleaning head 60 rotates. It is understood that other types of transmission are readily possible, i. a planetary gear is an optional variant.

The drive motor 36 forms part of a drive arrangement 36A.

The planetary gear 67 may form a coupling gear 67A.

With a pinion 68 on Ansaugrotationskörper 51, would be planetary gears 69 of a planetary gearset 70 of the planetary gear 67. The planet gears 69 are rotatably mounted on, for example, the top wall 66 pivot bearing 71.

Radially outward with respect to the planetary gear set is another planetary gear set 72, the planet gears 73 would come with the planetary gears 69. The planet gears 73 are rotatably mounted on pivot bearings 74 on the top wall 66. The outer planetary gear set 72 causes a reversal of the direction of rotation of the cleaning head 60 with respect to the direction of rotation of the drive shaft 58.

An advantageous measure provides that the planetary gears 69, 73 are identical, so that following a common part principle, the components of the cleaning machine 10 are particularly inexpensive to manufacture.

On the top wall 66 recesses 75 are further provided by the planetary gears 73 rotatably connected pinion 76 laterally in front of the Projecting top wall 66. These pinions 76 are in engagement with the inner circumference 42 of the channel body 40, so the ring gear of the planetary gear 67th

The pinions 76 are preferably integral with the planet gears 73, so therefore also identical in the planetary gears 69, where they are not needed.

On the cleaning head 60, a release brush assembly 80 is further provided which comprises a plurality of partially circular or partially annular release brushes 81. The release brushes 81 have a radial distance from one another and also an angular offset, so that via radially outer 82 dirty water corresponding to streams 91 can flow into the cleaning region 64 and can flow out via the suction inlets 65.

On the radial outer circumference of the plate-like cleaning head 60 are also still some semi-annular or ring segment-like release brushes 83, these release brushes 83 may be configured, for example, as a rubber lip or support contours.

In any case, it is preferred if the release brush arrangement 80 projects further with its free ends or end faces in the direction of the surface to be cleaned or the surface O to be cleaned than the sealing arrangement 55, namely, that the release brushes 81, 83 are in engagement with the surface O to be cleaned while the relatively fast-rotating seal assembly 55, ie Seal brush 57, preferably not in direct contact with the surface to be cleaned O passes.

Optionally, it is possible, for example, for protrusions 77 designed in the manner of swords or chaff protrusions to be provided on the intake rotation body 51, which, as it were, revolve over the suction inlets 65 and there, if necessary, intercepting dirt collecting material. In the cleaning head 160 shown in Figure 9, the Ansaugrotationskörper 151 has slightly fewer blades or contours 154 than the Ansaugrotationskörper 51, but otherwise largely identical. Thus, therefore, the suction device 50 generates at the same speed usually slightly less suction than the suction 50th

In addition, release brushes 181 are also in turn arranged at a rotational angle distance and a radial distance from each other. However, three rings of release brushes 181 are provided, which are each arranged like a fan one behind the other and radially next to each other.

Radially outside, i. on the outer circumference of the cleaning head 160, so-called entangled release brushes 183 are provided. The release brushes 183 are designed essentially in the manner of a circle segment. Free end faces of the release brushes 183 are crescent-shaped. The free end faces of the release brushes 183 have with respect to the top wall 88 continuously rising or falling distances.

The release brushes 183, as it were, scoop dirt in the direction of the interior of the cleaning head 160, that is to say to the suction inlets 65.

It can be seen that with respect to the axis of rotation 52, all cleaning and sucking components of the underwater cleaning machine 10, 100 are coaxial, which allows a particularly compact and effective design. The only drive motor 36 is sufficient to drive all components.

Of course, modifications are readily possible, i. that, for example, the suction unit 27 is driven via a gear so that it has a different rotational speed and / or direction of rotation than the suction device 50 or the intake rotational body 51.

Claims

claims

1 . Underwater cleaning machine with a suction unit (27) for generating a suction flow for sucking dirt through at least one suction inlet (65) with a dirty water outlet (17) for connecting a hose (23) or for connecting a separation device (22), in particular one Filter device, for the separation of dirt sucked in with the suction flow, wherein the cleaning machine (10) has a Lösebürstenanordnung (80) for releasing dirt from a surface to be cleaned (O), characterized in that in addition to the Lösebürstenanordnung (80) at least one In addition to the flow of the suction flow through the suction inlet (65) is provided separately suction suction device (50) for sucking the Lösebürstenanordnung (80) to the surface to be cleaned (O).

2. underwater cleaning machine according to claim 1, characterized in that the at least one suction device (50) by a motor drive arrangement (36A) of the cleaning machine (10) driven, in particular disc-shaped or plate-shaped, Ansaugrotationskörper (51) designed to generate a flow Contours, wherein by rotation of the Ansaugrotationskörpers (51) about its axis of rotation (52) a flow, in particular a vortex flow, for generating a cleaning machine (10) to a surface to be cleaned (O) sucking negative pressure can be generated.

3. underwater cleaning machine (10) according to claim 1 or 2, characterized in that the suction device (50), in particular the or a Suction-rotation body (51), in a sealing space (56) provided for abutment against the surface to be cleaned seal assembly (55), in particular an annular sealing brush (57) or sealing lip is arranged, which limits the sealing space (56).

4. underwater cleaning machine (10) according to claim 2 or 3, characterized in that the Ansaugrotationskörper (51) relative to a for abutment against the surface to be cleaned (O) provided end face of the seal assembly (55) and / or an end face of the Lösebürstenanordnung ( 80) for preventing direct contact of the Ansaugrotationskörpers (51) with the surface (O) protrudes.

5. underwater cleaning machine (10) according to claim 3 or 4, characterized in that the seal assembly (55) with the Ansaugrotationskörper (51) rotatably connected or rotationally driven by the drive assembly (36A).

6. underwater cleaning machine (10) according to any one of the preceding claims, characterized in that one or the at least one annular release brush (81) and one or the Ansaugrotationskörper (51) of the at least one suction device (50) are arranged concentrically and / or order the same axis of rotation (52) are rotationally driven.

7. Underwater cleaning machine according to one of the preceding claims, characterized in that the or a drive arrangement (36A) for rotationally driving the Lösebürstenanordnung (80), in particular one or the at least one annular release brush (81), and the Ansaugrotationskörpers (51). the at least one suction device (50) and / or the sealing arrangement (55) surrounding the intake rotation body (51) of the at least one suction device (50) is designed with different rotational speeds and / or different directions of rotation or has such a drive arrangement (36A).

8. Underwater cleaning machine according to one of the preceding claims, characterized in that the or a drive arrangement (36A) for rotationally driving the Lösebürstenanordnung (80) a coupling mechanism (67A), in particular a planetary gear (67), for driving the Lösebürstenanordnung

(80), in particular one or the annular release brush (81), and the annular seal brush (57) and / or the or a Ansaugrotationskörpers (51) of the at least one suction device (50) by a single drive motor (36).

9. Underwater cleaning machine according to one of the preceding claims, characterized in that the or a drive arrangement (36A) for rotationally driving the Lösebürstenanordnung (80) for driving the suction unit (27) is designed, in particular based on a single drive motor (36).

10. underwater cleaning machine according to any one of the preceding claims, characterized in that for releasing dirt from the surface (O) provided Lösebürstenanordnung (80) at least one annular or partially annular release brush (81) and / or at least two in one to the inflow of Waste water provided radial distance or an angular distance arranged release brushes (81).

1 1. Underwater cleaning machine according to one of the preceding claims, characterized in that the at least one suction inlet (65) or at least one suction inlet (65) on an outer periphery of the Lösebürstenanordnung (80), in particular the at least one annular release brush

(81).

12. Underwater cleaning machine according to one of the preceding claims, characterized in that the at least one suction device (50) or at least one suction device (50), in particular the Ansaugrotationskörper (51), and / or the at least one suction inlet (65) or at least a suction inlet (65) in the interior of the annular release brush (81) is arranged.

13. Underwater cleaning machine according to one of the preceding claims, characterized in that the at least one suction inlet (65) between the at least one suction device (50) and the at least one annular release brush (81) is arranged.

14. Underwater cleaning machine according to one of the preceding claims, characterized in that the suction device (50) designed to generate a flow and / or a negative pressure, which or does not contribute to the suction flow and / or is separate from the suction flow.

15. Underwater cleaning machine according to one of the preceding claims, characterized in that the Lösebürstenanordnung (80), in particular the at least one annular release brush (81), by the or a motor drive assembly (36A) is rotationally driven by a motor.

16. underwater cleaning machine according to one of the preceding claims, characterized in that the Lösebürstenanordnung (80) on a particular plate-like cleaning head (60) is arranged, wherein the cleaning head (60) suitably releasably on a housing (15) of the cleaning machine (10) can be arranged.