CN216907772U

CN216907772U - Electric cleaning device for motor-assisted cleaning of surfaces

Info

Publication number: CN216907772U
Application number: CN202020724187.0U
Authority: CN
Inventors: W·阿宾格
Original assignee: Einherr Germany
Current assignee: Einherr Germany
Priority date: 2019-05-06
Filing date: 2020-05-06
Publication date: 2022-07-08
Anticipated expiration: 2030-05-06
Also published as: DE202019102533U1

Abstract

The utility model relates to an electric cleaning device (1) for motor-assisted cleaning of surfaces, comprising: a housing (2) having a motor accommodating space, the motor being arranged to be electrically connected to the motor; the battery seat connected with the motor is used for recording; at least one battery (3) for supplying power; the electric motor and the area with the brush accommodation space (16) are open in certain areas to the environment of the cleaning device (1), in which environment at least one mechanical connection is made to the cleaning device (1); a motor coupled and driven by the shaft (17) for accommodating at least one roller brush (10, 11) operative to clean a surface; an elongated rod (6) connected to the housing (2) and projecting therefrom, the longitudinal extension of the rod (6) extending at least substantially perpendicularly to the axis (17); and a water connector (5) for connecting a water pipe, through which water can flow, extending from the water connector (5) to the passage to the brush accommodating space (16).

Description

Electric cleaning device for motor-assisted cleaning of surfaces

Technical Field

The present invention relates to an electric cleaning device for motor-assisted cleaning of surfaces.

Background

Cleaning works are carried out in a wide range of applications in industrial and commercial environments and private sectors. Since a relatively large amount of time is spent on the cleaning task and the cleaning task must be repeated in many fields, any type of mitigation measures and any improvement in efficiency are particularly desirable and valuable here. However, up to now cleaning devices or cleaning tools are often used which are not very flexible or only for a single field of application or cannot be handled by different persons with the same efficiency and ergonomics.

SUMMERY OF THE UTILITY MODEL

It is an object of the utility model to provide an improved cleaning device which enables particularly good and at the same time comfortable cleaning of surfaces. According to the utility model, this object is achieved by the subject matter of the independent claims. Advantageous developments and improvements of the utility model are specified in the dependent claims, the description and the drawings.

With the electric cleaning device according to the utility model, also referred to as cleaning tool, and thus designed and designed for motor-assisted cleaning of surfaces, in particular at least substantially flat floor surfaces, along which the cleaning device can be guided by a respective user. The cleaning device according to the utility model proves to be a housing with an engine receiving space, also referred to as engine compartment, in which an electric motor is arranged, with an electric vacuum cleaner electrically connected to the electric motor for receiving a battery for supplying power to the electric motor, and which is locally open to the environment of the cleaning device. In the brush receiving space, at least one shaft or axle mechanically connected to an electric motor is rotatably driven to receive or hold at least one roller brush for cleaning a surface.

The roller brush may be part of a cleaning device according to the utility model. Also, the roller brush may be an additional, e.g. replaceable or separately usable, component.

The cleaning device according to the utility model also has a rod which is connected to the housing and extends away from the housing, the longitudinal extension of the rod extending at least substantially perpendicularly to the axis or axes extending in the brush-accommodating space. Furthermore, the cleaning device according to the utility model has a water connection for connecting a water hose or water pipe, a channel or passage extending therethrough, through which the Carn connection extends into the brush receiving space through which water can flow. The water connection is arranged so that it is accessible from the outside of the cleaning device. Thus, as a water hose, for example, a conventional garden hose or the like can preferably be easily connected to a component connection of the cleaning device, for example without any tools or further manipulation or measures. The passage is a connection from the water connection to the brush receiving space, through which water or other cleaning liquid can flow into the water hose, so that the roller brush and/or the surface to be cleaned, if any, is arranged on the shaft or shafts. By means of which the cleaning device is guided, the water or cleaning liquid can be moistened or moistened. Experience has shown that this can improve the cleaning effect. In addition, if necessary, water can be flushed away directly from the dirt rinsed off by the loosened dirt and/or bound up flying dust.

The water provided through the water hose at the water connection may flow through the channel by a given water pressure in the water hose. Likewise, the electrical cleaning device may have an integrated pump for conveying water or cleaning liquid from the water connection through the channel. In any case, the water connection may preferably be formed as part of a commercially available plug connection. Such plug connections or plug connectors are known, for example, from the trade name and manufacturer Gardena. This or a similar plug connection advantageously makes possible a particularly simple and flexible use of the water connection, since standardized, uniform design means that various water lines can be easily connected to the water connection of the cleaning device.

The shaft of the cleaning device is thus provided and designed as a handle for the respective user of the cleaning device. Thus, the bar may preferably have one or more ergonomically designed gripping areas to enable a safe and comfortable grip by a human hand. Likewise, the rod or a partial region of the rod, in particular the upper end region of the rod facing away from the housing, can be curved or angled relative to the longitudinal direction of the rod. This advantageously makes it possible for the respective user to guide the body cleaning device particularly ergonomically and comfortably. The longitudinal extension direction of the rod is to be understood as the direction or spatial dimension, wherein the rod or an imaginary cuboid surrounding or encompassing the smallest dimension of the rod has the greatest length extension. The rods can, for example, be inserted into corresponding rod receptacles of the housing, screwed or welded to the housing, or be integrally formed from the housing. Like the housing, the rod may be formed wholly or partly of metal or a metallic material and/or a plastic material. Thus, depending on the field of application, the robustness of the cleaning device, i.e. increased impact strength or breaking strength, can be optimized or the weight minimized.

The aforementioned roller brush can be understood in particular in the conventional or customary sense. Thus, the roller brush may have an at least substantially cylindrical base body with a plurality of bristles extending radially outwardly from the outer envelope of its base element. Along the longitudinal central axis of the drum, the drum brush may have, for example, a similar cylindrical cavity which is open in the direction of one or both of the end faces or side faces of the drum, i.e. in the axial direction. The shaft of the cleaning device may then be engaged in the cavity. The mechanical contact between the roller brush and the shaft may be provided or produced by at least one corresponding form or lock or tongue and groove arrangement and/or the like. This may ensure that the shaft arranged on the shaft rotates jointly with the shaft and may thus also be rotated or driven by the motor. To this end, the electric motor may be mechanically coupled to the shaft or shafts, directly or indirectly, for example by means of gears and/or belt arrangements and/or preferably gearless transmissions. The mechanical coupling may particularly preferably be arranged centrally of the rim in the longitudinal direction, or two or more parts of the shaft may extend in opposite directions from the coupling. In both cases, the mechanical coupling may be arranged in the center of the brush-housed benzene adjuvant, that is to say the shaft or the axis of rotation or rotation of the shaft, with respect to the longitudinal direction.

The brush receiving space is understood to be a part of the closed area of the belicaulk, in which area the roller brush is to be arranged for the cleaning operation of the cleaning device. The brush accommodation space may be defined by a curved wall or a leading edge of the cleaning device, for example, of an at least substantially curved shape, i.e. it may be limited in certain areas. The wall or cover may be formed or integrated therewith as part of the housing or connected directly or indirectly to the housing as a separate component, e.g. held thereon. If the cleaning device is arranged as intended on the plane to be cleaned, the brush accommodation space may be open towards the surface to allow the roller brush to come into contact with the surface. At the same time, the wall delimiting the brush accommodating space in the region or cover can extend on the side of the roller brush or shaft or axle opposite the surface to be cleaned and preferably extend in an arcuate or hood-like manner around the brush accommodating space on at least two sides, so that the roller brush or shaft or axle is curved in the direction of the surface to be cleaned.

By designing the cleaning device in this way, it is possible to use the cleaning device particularly safely and comfortably, since, for example, rotating dirt can be caught by the wall or the cover, that is to say can be held in the brush receiving space. In addition, it is advantageously possible to prevent relatively large foreign matter from entering the brush accommodating space and damaging the drum brush or its mechanical link or hanger.

It is particularly preferred that the rubber lip or cover can be arranged on at least one edge facing the surface to be cleaned and at least substantially parallel to this edge. As a result, the brush receiving space can be isolated from the environment at least along the respective edges in a particularly safe, reliable and damage-free manner, since the rubber lip is particularly simple and reliable due to its flexibility and soft material compared to walls or covers or housings. The operation of the device, i.e. as the cleaning device is guided along the surface, may be maintained or may be maintained in mechanical contact with the surface.

For the purpose of the utility model, the at least one battery may be a rechargeable energy storage, which may deliver electrical energy for operating the electric motor. The battery may comprise one or more batteries or battery cells or corresponding battery modules. The battery can preferably have a nominal operating or output voltage of 12V, 18V, 24V, 36V or 48V, that is to say output or available in a fully charged state. However, other voltages are also possible, for example depending on the technology used and/or depending on the implementation of the motor and/or the intended range of application or application of the device. Lower voltages may advantageously be realized in a technically simpler manner, while higher voltages may advantageously enable a greater power output from the battery. For example, the battery may be based on lithium ion technology. Also, other techniques or different cell chemistry methods may be used during further technology development.

The battery receptacle particularly preferably has a circumferential seal, which abuts against the circumferential seal when the battery is inserted into the battery receptacle. This advantageously prevents dirt or water from penetrating into the container, so that the cleaning device can be operated particularly safely and reliably. Furthermore, this makes the use of a buzzer unit particularly convenient, since it is not necessary to clean an area of the receptacle after use in a dirty environment.

The motor accommodating space is used for accommodating or arranging the electric motor therein. In order to prevent water and/or dirt from entering, the motor receiving space may preferably be sealed from the brush receiving space. Additionally or alternatively, the electric motor itself may have a motor housing which is sealed or sealed at least with respect to coarse dirt and/or splashes. In particular in the former case, further electrical or electronic components of the device may be arranged in the motor installation space, for example beside or above the motor, or in separate compartments or areas of the motor installation space. This may be, for example, a circuit board or circuit designed to control the electrical or electronic functions of the device. By sealing the engine compartment, these components are then advantageously also at least protected from rough dirt and splashed water which may otherwise rotate from the outside of the shellfish during operation of the cleaning apparatus.

In general, the features and design details of the cleaning electric bechiki described herein and below work together to achieve particularly good (i.e., effective) surface cleaning, while enhancing the comfort of the individual user or providing the user with cleaning, as compared to conventional cleaning devices. For example, the motor reduces the force applied by the user to clean the respective surface by rotating or spinning the brush in a motor-driven manner. Cleaning is also enhanced because the breast is rotated at a faster rate than a simple manually guided brush is rolled over the surface. This cleaning effect can be supported by water introduced through the water connection and the outlet. Because the device battery is operational, it can be used flexibly in different locations regardless of whether a nearby cleaning device has a power connection. In addition, the cleaning device can be used particularly comfortably in this way, since there is no hindrance of an external power supply cable, which would otherwise be unnecessary. The drum-type can prevent or reduce the phenomenon of agitating dust and/or water, since the brush space is isolated from the surrounding environment of the space, at least in some areas. This eliminates the need to pre-sweep or evacuate the surface to be cleaned, for example, and may not require a protective garment to be worn while the cleaning device is in use.

Although the cleaning device according to the utility model may be used primarily for cleaning flat floor surfaces, it may also be used for cleaning curved surfaces or walls and/or sides or even ceiling surfaces, for example.

In a further advantageous embodiment of the utility model, the receptacle has at least two slots, i.e. slots or compartments or connections, for the respective at least two receptacles for the serial and/or parallel supply of the electric motors. In other words, several batteries may be inserted into the socket at the same time and then used to operate the motor or cleaning device. The plurality of cells may be electrically connected in series or parallel, or a hybrid electrical connection of the plurality of cells may be provided. It is particularly preferred that the respective controller is used to switch between different interconnections of the batteries or slots of the batteries. In this way, longer operation of the cleaner, higher power output of the battery and thus higher final cleaning performance or compromise of the engine and the cleaner can advantageously be achieved as required. For example, two batteries, each having an operating voltage of 18V, may be inserted into a battery receptacle to provide the motor with a voltage of 18V. Alternatively, the motor may then be supplied with a voltage of 36V by means of two batteries. In particular, it can be provided that the cleaning device can also be operated when not all slots are occupied, for example when only one battery is inserted into the battery container. This can be achieved by means of a corresponding connection or a corresponding connection of the respective slot to the electric motor.

In a further advantageous embodiment of the utility model, the brush accommodation space is arranged on a front side of the cleaning device, while the water element is arranged on a rear side of the cleaning device relative to the rear side of the cleaning device in the direction of movement or guiding of the cleaning device. The intended direction of movement is at least substantially perpendicular to the shaft and the rod. If the user of the device leads it forward to the front, the back of the device faces the user, while the front of the cleaning device is arranged to point forward in the direction of movement, in which case it faces away from the user. This arrangement of the brush receiving space and the water connection makes the cleaning device particularly comfortable to operate, since it effectively prevents the water pipe connected to the water connection from hindering the forward movement of the cleaning device. In addition, an improved cleaning effect can be achieved, for example, compared to a lateral arrangement of the water connections, since the water pipes possibly connected to the rear connections can then extend along the cleaned area, since the water pipes are actually situated behind which device is attracted.

In a further advantageous embodiment of the utility model, the shaft has two parts which extend outward from the central connecting region and by means of which the mechanical connection of the shaft to the electric motor is realized in opposite directions. In this case, a respective roller brush can be inserted into each section from its end facing away from the connecting region. In other words, the roller brush mentioned at the outset can therefore be constructed in two parts or can be provided in two. The two parts of the shaft may be part areas of a continuous shaft on both sides of the connector, respectively. Likewise, the two sub-portions of the shaft may be separate components, e.g. attached to the connecting beeswax from both sides, or otherwise connected or mechanically coupled thereto. The two parts of the shaft can in each case have a common longitudinal device axis and therefore a common rotational axis or axis of rotation, so that they extend in axial alignment with one another. This important arrangement of the regions already described at the outset makes it possible to advantageously achieve an improved stability of the cleaning device and an improved linear movement. In addition, this advantageously provides the possibility of using different roller brushes and/or exchanging two roller brushes or two parts of a roller brush independently of one another. The former may be particularly advantageous, for example, if the cleaning device is guided along a line or boundary and different conditions, for example different surface types, are present on both sides of the line or boundary. By using different roller brushes on both sides of the zone, two different zones can be optimally cleaned in one operation. The independent interchangeability of the roller brushes allows for resource savings and replacement on demand, for example, if one side of the two roller brush components wear unevenly.

In an advantageous development of the utility model, the cleaning device comprises two roller brushes. Both roller brushes have bristles which are angled with respect to the cylindrical jacket element of the respective roller brush, so that, when both roller brushes are inserted into the shaft or into a partial region of the shaft, the brush which is inclined in the direction of the other roller is inclined and at least partially covers the connecting region. In other words, the inclined bristles are not perpendicular to the respective casing element, but rather at an angle of more than 0 ° but less than 90 ° relative to the casing element or to the surface normal of the casing element. The angled bristles may extend from the sleeve member itself or other surface area roller brush. The surface area may in turn be inclined or obliquely arranged with respect to the casing element, in which case the inclined bristles may project perpendicularly from the surface area. In addition to the respective roller brush which projects at least substantially perpendicularly from the jacket element, in particular inclined bristles can be provided. The angled bristles additionally provided herein may advantageously achieve a uniform cleaning effect throughout the entire length of the shaft. In other words, when the cleaning device is guided over the surface to be cleaned by the inclined bristles covering the connection region, there is advantageously no uncleaned or unground region or strip between the two roller brushes or their tracks. The inclined bristles can here advantageously be designed analogously to the corresponding inclined bristles described below. For example, the inclined bristle roller brushes here can be so long and arranged at such an angle that they end with vertical imaginary bristles on a common imaginary cylindrical envelope surface around the respective roller brush.

In a further advantageous embodiment of the utility model, the at least one roller brush can be fixed to the shaft without tools and can be removed from the shaft without tools. In other words, the user can also replace, disassemble and assemble the roller brush in field use of the cleaning device. This may be achieved, for example, by an insertion and/or locking mechanism, which will be described in more detail below. The tool-free interchangeability of the roller brush makes the use of the cleaning device particularly convenient, flexible and reliable. Furthermore, by replacing the roller brush with another type of roller brush, it is possible to adapt the cleaning agent to different surfaces to be cleaned particularly easily and quickly as desired, even when the cleaning agent is used on site.

In an advantageous development of the utility model, a manually releasable locking mechanism for holding or fixing the roller brush on the shaft is integrated in the shaft. In other words, at least a part of the locking mechanism by which the roller brush is held on the shaft during the operation of cleaning is arranged within the shaft itself. For this purpose, the shaft can be designed as a hollow cylinder with an inner receiving space for the locking mechanism. The arrangement of at least part of the locking mechanism advantageously enables a particularly space-saving or space-saving arrangement and thus enables a particularly weight-saving, i.e. light, construction of the cleaning device to be guided particularly comfortably. In addition, the arrangement of the locking mechanism provided herein enables an intuitive cleaner to be used particularly intuitively and safely, since even a technically inexperienced user would intuitively attach the roller brush to the shaft and then not have to search for the locking mechanism elsewhere. In addition, owing to the design provided here, at least a part of the locking mechanism can be covered by the shaft brush when the locking brush is inserted onto the shaft brush, as a result of which the locking mechanism can be protected particularly reliably from damage during operation or use of the cleaning device.

In an advantageous development of the utility model, the locking mechanism comprises at least one pin and a spring-loaded button mechanically coupled thereto. The button is arranged on the end or head side of the shaft, which is surrounded by the jacket element forming the end and is open on the end side. The jacket element may form the hollow cylinder already mentioned. The front or top side can therefore be understood as the side of the cylindrical body of the jacket element which is different from the cylindrical body, i.e. extends perpendicularly to one side by means of the longitudinal axis of the cylindrical body. It is also provided that the push button can be pressed along the axis of the longitudinal device, i.e. the corresponding hollow cylinder. At least one pin projects radially outwards beyond the housing element, i.e. the respective casing element, to hold the brush at least substantially perpendicularly to the longitudinal arrangement and for releasing the roller brush by pressing the button radially inwards into the housing element. To hold the roller brush, the pin can engage in a corresponding recess or receptacle of the roller brush. Also, the pin may be axially disposed outside of the front of the roller brush, thereby preventing the roller brush from being pulled out or slipping in the axial direction.

In this case, it is particularly preferred to provide a plurality of pins which can be arranged in different directions, for example evenly distributed over the circumference of the shaft, and can be moved synchronously or simultaneously with one another by pressing in (i.e. operating the push button). The spring element of the locking mechanism for the spring-loaded push button can be designed and arranged such that when or after the push button is pressed, i.e. in a fully or partially pressed state of the push button, it presses the push button axially outwards by a corresponding spring force, so that the push button is particularly easy to access and operate for a particular user.

In an advantageous development of the utility model, the locking mechanism therefore has at least one spring element, the spring force of which pushes the push button axially outward and pushes the at least one pin radially outward. Thus, when the roller brush is inserted onto the shaft, the spring element holds the pin in a retaining or locking position in which it prevents the roller brush from falling off or slipping off the shaft. The spring element may be a single element or an assembly of a plurality of separate parts, for example at least several separate springs.

In an advantageous development of the utility model, at least one pin and/or the roller brush has an inclined contact surface with respect to the direction of movement of the pin when the push button is actuated. In this contact area, the pin and the roller brush are in contact with each other when the roller brush is inserted onto the shaft. Since one or more of the contact regions are chamfered, the pin is first pressed radially inward against the spring force when the roller brush is mounted. As soon as the pin is no longer covered by the roller brush, it is pressed radially outward again by the spring force in order to fix or lock the roller brush. The latter is done automatically by the spring force or the corresponding spring load of the pin. As a result, the brush can be held or locked particularly reliably, since the respective user does not have to manually bring the pin into the respective holding or locking position. The design proposed here can also improve the use or ease of use of the cleaning device, since it is not necessary to press the roller brush against the shaft or to insert and lock the roller, since the roller brush, which the user can push in an axially applied axial force, is deflected partly in the radial direction by the inclined contact region in order to press in the pin. A correspondingly designed roller brush may be part of the cleaning device as presently claimed. The at least one pin and/or the roller brush have a contact area which is inclined with respect to the direction of movement of the pin when the button is actuated and at a point on the shaft where the pin of the roller brush and the roller brush contact one another, so that when the roller brush is inserted, the pin is first pressed radially inwards against the spring force until it is no longer covered by the roller brush until it is pressed radially outwards by the spring force.

In a further advantageous embodiment of the utility model, the cleaning device comprises at least one roller brush with a radially outward projection and at least one side brush with bristles, which side brush in the intended mounting position of the brush, i.e. inclined with respect to the bristles, is the roller brush and the side brush. A roller brush frame. In other words, the cleaning device then comprises at least two different types of brushes, the bristles of which project in different directions in the desired mounting position and thus when the cleaning device is operated with two brushes. As a result, the cleaning effect can be achieved in different directions with the same operation, for example on surfaces that are angled to each other or on a surface. For example, a floor surface may be cleaned with a roller brush while a wall rising from the floor surface may be cleaned with a side brush. This may enable a particularly effective and comfortable cleaning of the edge area, for example if the cleaning device is guided along a curb or the like defining a path. In particular, it is then not necessary to raise the cleaning device to clean the wall or side surface, as is the case, for example, when using a conventional brush. The side brushes may advantageously be arranged radially outside the roller brush. The bristle-side brush can project axially out of the brush receiving space, i.e. on a wall or a cover of the brush receiving space. As a result, a wall along which the cleaning device is guided can be cleaned particularly reliably and efficiently by the side brush without the wall or the cover brush accommodating housing or the housing cleaning device coming into contact with the wall. Corresponding damage can thereby advantageously be avoided.

In an advantageous development of the utility model, the side brushes have an annular first surface which tapers conically outwards, i.e. radially axially outwards, from which the bristle side projects outwards at least substantially perpendicularly to the surface region. In other words, the bristle-side brush is at least partially substantially perpendicular to the surface area side brush, but the surface area is, for example in the case of the intended insertion side brush, conically inclined relative to the cylindrical jacket element or brush. Therefore, the bristle side brush is at a corresponding inclination angle with respect to the bristles of the drum brush. The fact that the first surface area tapers conically here means in particular that it does not extend perpendicular to a tangential plane located on the casing element of the roller brush. Thus, the side brushes have bristles that are inclined or slanted with respect to the bristles of the roller brush, but enclose an angle other than 90 ° with them. Appropriate testing has shown that this arrangement and alignment of the bristle side brushes can achieve particularly good cleaning on the wall surfaces exposed to the side brushes. The fact that the bristle side brushes are again perpendicular to the first surface area side edges advantageously allows the manufacture and arrangement of the bristles to be consistent and prevents or reduces uneven loading on the bristles. The annular first surface region is, in the predetermined installation position, laterally enclosed by the brush around a shaft of the cleaning device, on which shaft the roller is also to be arranged in the desired manner. The term "first surface area" is to be understood here in the name or name sense, so that it does not necessarily mean that there is or must be a further surface area e or a further surface area e side brush. However, this is not excluded.

In an advantageous development of the utility model, the side brush has a second surface area which, in the intended mounting position of the brush, i.e. the roller brush and the side, is at least substantially perpendicular to the axis of the device. At least some of the bristle side brushes are arranged to project at least substantially perpendicularly outwardly from the second surface. In other words, then, in the intended installation position side brush, at least the several bristles extend in the axial direction, that is to say parallel to the roller brush on which the roller is also or will be arranged, in the intended installation position. In this way, with a minimum length of these at least several bristles, a maximum extent of the cleaning device in the axial direction outwards can be achieved. The bristles may be radially spaced from the axis about which the side brush rotates so that when the cleaning device is in operation, the bristles undergo or describe a circular motion. The term "second surface region" may be understood here in the name or descriptive sense, so that it is not necessary to refer to one or the first region. Preferably, however, the first surface area and the second surface area may be provided simultaneously to achieve an improved and consistent planar cleaning effect.

In an advantageous development of the utility model, a tool-free, reversible mechanical plug connection is provided, by means of which the side brushes can be connected to the roller brush by being axially inserted onto the axially outer ends thereof. In other words, the side brush can be inserted in the axial direction onto the roller brush and then held on the roller brush by a plug connection. The side brush then rotates with the roller brush about a common axis, but does not rotate relative to the roller brush. The plug connection can be realized, for example, by one or preferably a plurality of pins and corresponding sockets. The pins can preferably be arranged on the side brushes and the corresponding receptacles on the roller brushes. This prevents the pin from jamming if the cleaning device is operated or used without the plug-side brush being installed. The plug connection has the advantage over a threaded connection in which the side brush is screwed onto the shaft or roller brush, for example, that the plug connection is not loosened by the rotational movement of the shaft and the brush during the cleaning operation.

Since the plug connection between the roller brush and the side brush can be reversibly disassembled without tools, the individual user can release and remove the side brush particularly easily, conveniently and quickly even when using the cleaning device on site. This in turn advantageously makes it possible to bring the device particularly close to a wall or edge, so that the respective floor area can be reliably cleaned up to the respective edge, which may, for example, project beyond the wall or border. Likewise, the configuration of the volga applicator proposed herein makes it possible to replace the side brush particularly simply, for example for another small tooth brush adapted to different types of surfaces or other operating conditions, or in the case of worn side brushes. This also advantageously contributes to a particularly flexible and comfortable usability of the cleaning device and may contribute to an improved cleaning effect.

In an advantageous development of the utility model, the respective lengths of the bristles, the roller brush and the bristle brush and the angles of these bristles relative to one another in the predetermined installation position of the brush are matched to one another in such a way that at least some of the brushes are in the predetermined installation position. The bristle roll brush and at least some of the bristle side brushes terminate in a common imaginary envelope surface surrounding the brush. In other words, if the cleaning device is guided over a flat surface to be cleaned, both the bristle roller brush and the side brush facing the surface can just reach the surface. In this way, on the one hand, the area which can be cleaned by the cleaning device in one operation can be advantageously enlarged, and on the other hand, uneven loading of the two brushes can be advantageously avoided. Due to the design proposed here, the latter may both contribute to a uniform and consistent cleaning result and may also improve the ease of use of the cleaning device, since the cleaning device may be guided particularly simply and with a consistent effort along the surface to be cleaned.

In an advantageous development of the utility model, the side brush bristles have a length, measured radially outwards, from the outer solid surface to the side brush of 25mm to 40mm, preferably 30mm to 35 mm. The outer solid surface can be, for example, the first surface region or the second surface region. Experience has shown that particularly good cleaning results can be advantageously obtained with the lengths suggested here, while limiting the motor-driven brushes and the necessary efforts of the respective user to use the cleaning device to a relatively simple and comfortable level. Longer bristles may, for example, over bend and then loosen or remove dirt from the surface to be cleaned. If the bristles are much shorter, the gaps between the bristles may become clogged with dust too easily and too quickly, which may also limit the cleaning effectiveness of the brush.

In a further advantageous embodiment of the utility model, the cleaning device comprises a roller brush as described above, which has a length, measured radially outwards from the cylindrical outer part of the roller brush, of 22mm to 30mm, preferably 26mm to 28 mm. As mentioned herein, the exterior of the roller brush may be, for example, the outer jacket element or the outer surface of the outer jacket element. The corresponding explanations for bristle length and side brush apply to the Volaserboard length set forth herein.

The different lengths of bristles described herein for the bristle side brush and the roller brush are based, for example, on their different angles with respect to the bristles possessed by the shaft and the surface to be cleaned, respectively.

In another advantageous embodiment of the utility model, the cleaning device comprises at least one brush, the bristles of which are made of polyamide and have a diameter of 0.9 mm. It should be understood that the diameter may be within +/-0.075mm, except for a tolerance. The brushes mentioned here can be, in particular, the roller brushes mentioned and/or the brush brushes mentioned. For example, nylon or PA6 or the like can be used as the polyamide material of the bristles. It has been shown that the combination of material and diameter or thickness of the vogela proposed here makes the brush suitable for use as a universal brush, i.e. for cleaning a variety of different surfaces. For example, with a brush designed in this way, the surfaces of stone, artificial turf and tile and various other surfaces can be cleaned reliably and simultaneously without damage. At the same time, bristles designed in this way can advantageously be produced particularly easily and inexpensively using established methods.

In a further advantageous embodiment of the utility model, the cleaning device comprises at least one brush for cleaning wooden surfaces, the brush of which is composed of polyamide and has a diameter of 0.6 mm. The brushes mentioned here can be, in particular, the roller brushes mentioned and/or the brush brushes mentioned. Here, too, the specification of the bristle diameter is to be understood, except for tolerances which may be, for example, within +/-0.075 mm. Experience has shown that the brush proposed here is particularly suitable for more sensitive surfaces, such as wooden surfaces. This occurs because the smaller diameter of the bristles makes them softer and more flexible, so that, for example, scratching of surfaces cleaned by appropriately designed brushes can be avoided particularly reliably.

In a further advantageous embodiment of the utility model, the cleaning device has a brush for cleaning stone or metal surfaces, the bristles of which are made of metal wires and have a diameter of 0.15mm to 0.5mm, preferably 0.3 mm. The brushes mentioned here can be, in particular, the roller brushes mentioned and/or the brush brushes mentioned. The specified diameter is also to be understood here as being within a tolerance range, which may be within a range of +/-0.075mm, for example. Due to the production or design of the vortex generators made of metal wire proposed here, the bristles and therefore the brushes are particularly robust and at the same time particularly effective against dust, in particular harder scaling and the like. At the same time, the diameter of the steps presented here may ensure sufficient flexibility of the bristles, whereby the force often exerted by the motor and the respective user of the cleaning device during operation of the cleaning device may advantageously be limited.

In an advantageous development of the utility model, the metal bristles of at least one brush are made of brass-coated steel. It has been shown that a particularly good compromise can be achieved in this way with respect to the cleaning effect and robustness of the respective brush, for example in view of the stability, flexibility and wear of the bristles and the mechanical load of each brush to be cleaned, i.e. by the respective brush application surface.

In a further advantageous embodiment of the utility model, the cover is initially defined in the region of the shaft or brush receiving space in at least one radial direction by a cover or wall which is curved in the axial direction. The cover or wall is open in the axial direction. Furthermore, the cleaning device according to the utility model has a reversibly attachable side delimiting element on the cover from the outside in the radial direction, which delimits the brush accommodating space in the axial direction when it is inserted onto the cover. In other words, the lateral delimiting elements can be inserted onto the cover in order to enclose the brush receiving space in the axial direction. The side delimiting element can be detached from or fixed to the cover to open or release the brush accommodating space in the axial direction. This is particularly advantageous as it is accompanied by increased flexibility in usability and applicability of the cleaning device. This in turn can help to improve cleaning and ease of use. For example, the insertion of the delimiting elements may prevent dirt and/or water from being thrown out of the brush receiving space in the axial direction, i.e. laterally, during operation of the cleaning device. On the other hand, in the case of removal of one or two delimiting scratches, the side brush can be inserted so that, as described above, it is possible to clean not only the floor but also the side walls etc. cleaned along it in one operation.

The shape of the element may follow the cross-section of the brush receiving space or correspondingly. For example, the upper edge of the delimiting element may have an arcuate course, while the lower edge of the delimiting element may be, for example, straight. When using cleaning bees, i.e. when they are guided along the surface to be cleaned, the lower edge can extend at least substantially parallel to the surface in the intended direction of movement of the cleaning device. The delimiting element may preferably be at least substantially or substantially disc-shaped, that is to say, its diameter or wall thickness is smaller than its diameter or extension in its main plane of extension. As a result, the cleaning device can be designed to be particularly space-and weight-saving, i.e. lightweight. Viewed from the outside in the axial direction, the lateral delimiting elements, i.e. the shaft and any serrated brushes that may be attached or arranged thereon, can be at least covered. The side delimiting elements can be removed even without inserting or using any side brush, since this makes it possible to achieve particularly close cleaning by means of the roller brush, for example if the cleaning device is carried out along a wall or a side boundary.

In a further advantageous embodiment of the utility model, the cleaning device has a speed control for manually setting the motor speed. The adjustable control, which is designed as a speed control of the rotary control, is integrated in the lever of the cleaning device, that is to say is arranged on the lever, and is preferably at least partially embedded in the lever. In this case, it is particularly preferred to provide a stepless adjustment or regulation of the rotational speed by rotating the control accordingly. By integrating or arranging the rotary control in or on the lever of the device cleaner, the user can advantageously obtain the rotary control particularly easily and comfortably during operation or use of the cleaning device. Thus, the speed of the motor may be adjusted or regulated during operation of the cleaning apparatus according to the needs of the respective end user, in particular without the need for the respective user to put down or switch off the cleaning apparatus. In this way, for example, the reaction to particularly dirty regions can be cleaned by increasing the rotational speed as appropriate, in order to achieve particularly good cleaning results there. For less soiled areas, the speed can be reduced as needed, for example to run the cleaning apparatus in an energy efficient, quiet manner.

In a further advantageous embodiment of the utility model, the electric motor is designed to operate in different directions of rotation, that is to say in opposite directions of rotation. The cleaning device then has a lever arranged on or integrated in the lever for manually switching the direction of rotation of the motor. In other words, by operating or operating the rotation controller, the respective user can alter or switch the direction of rotation or the direction of rotation of the motor, thereby changing or switching the direction of rotation of the shaft and, ultimately, of the roller brush and, if appropriate, the side brush connected thereto. By switching or adjusting, for example, the direction of rotation or the direction of rotation of the electric motor, it is advantageously possible to support a direction of movement or guidance in which the cleaning device is guided by the respective user on or along the surface to be cleaned. On the other hand, if the user alternately moves the cleaning device back and forth on a certain surface to be cleaned without changing the rotational direction of the motor, the cleaning effect of the cleaning device may be worse than the other direction according to the direction of one of the two directions. On the other hand, the rotation of the roller brush counteracts the movement of the cleaning device over the surface. The arrangement of the control for switching the direction of rotation on the lever makes it particularly easy for the respective user of the cleaning apparatus to operate the rotation control. By switching or switchability of the direction of rotation of the electric motor, an improved cleaning effect and an improved ease of use of the cleaning device as a whole can be achieved.

In an advantageous development of the utility model, the cleaning device has a mechanical and/or electronic lock, which automatically prevents the electrical switching as long as the current rotational speed of the electrical motor is greater than a predetermined threshold value. The threshold value may be specified, for example, in revolutions per minute or correspond to a specific number of revolutions of the motor. The threshold value may be 0 or greater than 0, for example, depending on the design of the electric motor and/or the corresponding controller. The lock provided herein may advantageously be used in a particularly reliable manner to prevent the rotational direction of the motor from being accidentally switched during operation of the cleaning apparatus. As a result, any unpredictable behavior of the connector device and damage to the motor can be avoided particularly reliably.

In a further advantageous embodiment of the utility model, the rod of the cleaning device is designed as a, in particular, stepless, telescopic rod, which is formed by a plurality of telescopic rods or rod elements which can be displaced relative to one another, in particular relative to one another. In other words, the rod elements can thus be telescoped, that is to say moved relative to one another, in order to adjust or adjust the length of the rod. By such a manual adjustment of the transaction time, which can be performed manually by the respective user, preferably without tools, the cleaning device can advantageously be used by different users and/or in different situations or for different applications or purposes, each with optimal ergonomics, thereby improving the overall comfort to be treated. In addition, a corresponding change in the length of the telescope can be used to achieve and clean a surface area using a cleaning device that would otherwise not be accessible using the cleaning device. Thus, the cleaning liquid of the cleaning device can also be advantageously supported by the length-adjustable telescopic rod provided here.

In an advantageous development of the utility model, locking lockers are provided on the telescope rod, which lockers can be detached to change the length of the telescope and can be fixed to lock the length of the telescope rod. In other words, by closing or fixing the elements, the elements of the telescope can be fixed relative to each other, so that the length of the telescope does not change automatically in an unexpected or unforeseeable manner when the device is used. Since the locking element is provided specifically to allow or prevent a change in length, a particularly safe and comfortable use of the cleaning device can advantageously be made possible. For example, the element may reduce the likelihood that an individual user of the cleaning apparatus will inadvertently or unintentionally change the length of the telescopic rod.

In an advantageous development of the utility model, the locking element is designed to be rotatable about the longitudinal direction of the rod, the length change being releasable by rotating the locking element in a first direction, while rotating the locking element in a second direction releases the rod elements to be fixable to one another for fixing the length of the telescope. In other words, the functional mechanism of the locking element can be based on a known screw cap, which makes the operation of the locking element particularly simple, intuitive and thus comfortable. A further advantage of the design proposed here is that the locking element can be reached particularly reliably, easily and thus particularly comfortably regardless of the cleaning result or the relative position of the telescope bar with respect to the respective user. It is also advantageous that no rotary control or the like projecting perpendicularly to the longitudinal direction of the lever has to be provided on a part of the locking element in order to be able to operate or manipulate the locking element in a simple manner. As a result, the contour of the telescope can advantageously be kept particularly narrow and smooth, which in turn makes the cleaning device particularly comfortable to use even in limited or narrow space conditions and, for example, can prevent the mentioned water pipes from being connected to the respective rotary control or catching on the respective lever or the like.

In a further advantageous embodiment of the utility model, a handle is arranged on the shaft, which handle projects laterally from the shaft relative to the longitudinal direction of the shaft, in particular at an angle of between 30 ° and 150 °, preferably at an angle of 90 °. This way, therefore, also provides a further handle or a further attack point for guiding or maneuvering the cleaning device for the respective user, as a result of which the comfort of the user can be further increased. Since the handle projects at an angle from the rod, the respective user can advantageously apply or apply the lever or levers in a particularly simple manner in order to position the cleaning device particularly simply and particularly precisely. This is particularly visible, for example, in comparison to two gripping regions of the handle itself which are spaced apart only in the longitudinal direction along the handle.

In an advantageous development of the utility model, a holder is provided, by means of which the rod can be detached from the rod and fixed to the holder without tools, so that the rod can be arranged manually in different positions in the longitudinal direction of the rod. In other words, the handle may be fixed at different positions on the rod. This makes the ergonomic device particularly ergonomically and therefore particularly comfortable to handle in different situations and/or for different users. The holder may, for example, surround the rod and thereby be clamped to the rod, or may be designed, for example, as a clamp, the legs of which surround the rod and which can be screwed or clamped together. The corresponding screw can then have a wide gripping area, so that it can be removed and screwed in manually without tools. Likewise, in the rod, for example, perforated strips, i.e. a plurality of holes, in particular screw holes, arranged at a distance from one another in the longitudinal direction of the rod. The handle can then be fixed, i.e. fastened, in different positions on the perforated strip or the holes, for example by means of corresponding inserts or screw connections.

In an advantageous development of the utility model, the handle has a substantially arcuate shape. The handle thus completely surrounds an open internal water channel which can be penetrated by the respective user together with the pole at least in one layer. When the rod is connected to the rod, the handle itself or in combination with the rod may form a ring-not necessarily. As a result, along the loop, different gripping positions or gripping positions are advantageously provided for the respective user, so that he can particularly safely, reliably and comfortably operate the cleaning device. Since the loop is closed, the grippable inner region in at least one plane is completely surrounded or encompassed by the material of the handle, the handle also advantageously provides better protection for the individual user, for example for the hand holding the handle.

In an advantageous development of the utility model, provision is made for the guide for a water line as described to completely enclose in at least one plane a separate region which is open to be grasped perpendicularly to the plane, so that the water line can be guided or threaded through the individual regions, and then for the handle guide formed thereby to be fed at least partially along the rod through the handle. In other words, the handle has a dual function, both as a handle for the respective user and as a hose guide. However, the fact that two separate, fully enclosable areas are provided at least one height prevents the user from hitting his hands when the user is addicted to the water pipe when it is guided through the die guide. To or surrounded by a separate region of the hose guide member.

Particularly preferably, the separate area as a guide can advantageously be smaller than the area provided for the user as a handle area. As a result, the hose can be guided with particularly little play and/or particularly close to the wand of the cleaning device, which can result in particularly simple and comfortable operation of the cleaning device.

The locking mechanism comprises at least one pin and a spring button mechanically connected thereto, the button being arranged on an end face of the shaft, which end face is surrounded by a jacket element forming the shaft and can be pressed in along the longitudinal device axis, the at least one pin being adapted to hold the roller brush radially outwardly beyond the housing element at least in a direction perpendicular to the longitudinal device axis and to release the roller brush by pressing in the button to be sucked radially inwardly into the housing element.

The side brush has a second surface area which is located in the intended mounting position of the brush at least perpendicular to the axis, from which at least part of the bristles of the side brush project at least perpendicularly outwards.

A tool-free reversible mechanical plug connection is provided, by means of which the side brush can be connected to the roller brush by being axially inserted onto the axially outer end of the latter.

The respective lengths of the brush hairs of the roller brush and of the brush hairs of the side brush, and the brushes are coordinated with each other such that in an intended mounting position of the brushes, at least some of the brush hairs of the roller brush and at least some of the brush hairs of the side brush are in the same position, the brushes ending in a common imaginary envelope surface which surrounds the brushes in a cylindrical shape.

The telescopic rod is provided with a telescopic element which can be detached to change the length of the telescopic rod and can be fixed to lock the length of the telescopic rod.

The locking element is designed to be rotatable about the longitudinal direction of the rod, the length change being detachable by rotating the locking element in a first direction, and the rod element for fixing the length of the telescope rod being fixable by rotating the locking element in a second direction.

On the bar, laterally in the longitudinal direction of the bar, further handles of the bar are arranged at an angle of between 30 ° and 150 °.

At least at one level, the hose guide for the water hose of the handle completely encloses a separate area in a plane, which can be penetrated perpendicular to the plane, so that the water hose can pass through the separate area and then through the handle at least in certain areas along the wand.

For the purpose of subdivision into an enclosed area of the user-provided area and the through-area provided for the user, at least one transverse web can be arranged, for example, in a plane in which the handle encloses these areas, so that opposite parts of the handle are connected to one another.

The utility model also comprises combinations of the described embodiments and further developments and/or combinations of the individual features of the different embodiments and further developments.

Drawings

Exemplary embodiments of the present invention are described below. It shows

FIG. 1 is a schematic partial perspective view of an electrical device;

FIG. 2 shows a schematic view of the underside of the cleaning device of FIG. 1;

figure 3 shows a schematic partial perspective view of a brush of the cleaning device of figure 1 with the roller brush removed;

FIG. 4 shows a schematic side view of the brush for the cleaning device of FIG. 1, wherein the brush is fitted with side brushes;

FIG. 5 shows a schematic detail view of a detail of the water connection of the cleaning brush for the water hose of FIG. 1;

figure 6 shows a schematic perspective view of the handle of the cleaning device of figure 1;

FIG. 7 shows a schematic detail view of a portion of a wand of the cleaning device of FIG. 1 with a rotary control for the engine speed and engine rotational direction of the cleaning device; and

fig. 8 is a schematic partial bottom view of the cleaning device.

Description of the reference numerals

1 cleaning device

2 casing

3 Battery

4 cover

5 Water connecting piece

6-bar

7 locking element

8 rubber lip

9 demarcation element

10 first roller brush

11 second roller brush

12 brush (roller brush)

13 connection region

14 side brush

15 side hair

16 brush accommodation space

17 axle

18 push buttons

19 surface area (side brush)

20 envelope surface

21 handle

22 screw

23 inner region

24-type cross switch

25 hose guide

26 rotating controller (for speed regulation)

27 rotation controller (for motor rotation)

28 outer sleeve element

29 inclined brush (roller brush)

30 straight bristles (side brush).

Detailed Description

The exemplary embodiments described below are preferred embodiments of the present invention. The described components of the embodiments each represent individual features of the utility model considered independently of one another, which further develop the utility model independently of one another, in the exemplary embodiments, so that the utility model shall be considered individually or in combination in addition to the one shown as part of the utility model. Furthermore, the described embodiments can also be supplemented by other features of the utility model which have been described.

In the drawings, the same, elements having the same function or corresponding to each other are respectively identified by the same reference numerals.

Detailed description of embodiments fig. 1 shows a schematic partial perspective view of an electrical device 1 for motor assisted brushing, i.e. surface cleaning. The cleaning device 1 has a housing 2, in which housing 2 an electric motor is arranged. For supplying the electric motor with power, the housing 2 also has a battery receptacle in which the battery 3 is arranged in the present case. A cover 4 (see fig. 3) of a brush accommodating space 16 is integrally formed on the housing 2, and a brush for brushing a surface to be cleaned is arranged in the housing 2. The brush receiving space 16 is covered at the top by the cover 4, for example in the direction of the battery 3, but is open at the bottom, i.e. to the surface to be cleaned.

On the back of the housing 2 there is a water connection 5 for connecting a water hose, for example a conventional garden hose. From the housing 2, an elongate wand 6 extends upwardly and serves as a handle for a user of the cleaning apparatus 1.

In the present case, the rod 6 is designed as an adjustable-length telescope rod, here indicated by a corresponding double arrow. A locking element 7 is provided here for releasing and locking the length adjustability of the lever 6. The locking element 7 can be manually rotated about the longitudinal extension direction or longitudinal extension axis of the rod 6 in order to make the telescopic rod elements of the rod 6 displaceable or fixed relative to each other.

Fig. 2 shows a schematic bottom view of the device 1, i.e. a view of the brush accommodation space 16 open downwards. Here, the brush accommodation space 16 is limited or defined by an imaginary connection plane between the curved cover 4 and the rim. In order to produce an improved and tighter contact with the surface to be cleaned in each case and, if necessary, in order to remove dirt particles present on the surface, a cover 4 and a corresponding rubber lip 8 are arranged along these edges. The cover 4 is open in the axial direction. The receiving space 16 is in the present case limited or closed on one side in the axial direction, but by means of the lateral delimiting element 9, this lateral delimiting element 9 can be inserted axially onto the cover 4 from the outside. Corresponding delimiting elements can also be placed opposite one another on the other side of the brush receiving space 16 on the cover 4, in order then to complete the brush receiving space 16 axially in this or both directions.

In the brush accommodation space 16 in the present case, the first roller brush 10 and the second roller brush 11 are arranged on a shaft or axle 17 (see fig. 3), which is not visible here and passes through the brush accommodation space 16. The brushes 10, 11 have bristles 12 projecting radially from their outer side or casing element 28. The brushes 10, 11 are mechanically connected to the motor via a shaft 17 and a connecting region 13 arranged in the brush receiving space 16 in the center in the longitudinal direction. Thus, the roller brushes 10, 11 can be rotated about the shaft 17 by the motor.

In the present case, the brush accommodation space 16 is closed only on one side by the delimiting element 9, whereas the brush accommodation space 16 is open, on the other hand, on which side the side brush 14 is axially attached to the second drum brush 11. The side brushes 14 have side bristles 15 which extend at an angle to the bristles 12 of the roller brushes 10, 11. In the present case, the side bristles 15 extend in the axial direction, that is to say at an angle of at least substantially 90 ° to the bristles 12 of the second roller brush 11. The cleaning device 1 can thus be moved thereon, for example, for cleaning a floor surface and thereby a part of the floor surface of a vertically standing wall or boundary along one of the following, which can then also be cleaned by means of the side brushes 14 or the side bristles 15. The side brush 14 is mechanically coupled to the second roller brush 11, and thus rotates in synchronization with the second roller brush 11.

Unlike what is shown here, the delimiting element 9 can be removed as desired, while the side brush 14 or another corresponding side brush can be connected on the other side to the first roller brush 10. The cleaning device 1 can thus be flexibly adapted to the respective operating conditions.

Fig. 3 shows a schematic partial perspective view of the cleaning device 1 with the brush accommodation space 16. Here, the second roller brush 11 is subtracted from the shaft 17, so that the shaft 17 is partially visible. In order to hold the roller brushes 10, 11 on the shaft 17, a locking mechanism is provided in the present case, which is integrated in the shaft 17. In order to be able to pull the roller brushes 10, 11 out of the shaft 17, no tools are required, but here only the push button 18 is integrated axially on the front side into the shaft 17 to release the second roller brush 11. When the button 18 is pressed, the second roller brush 11 may then be pulled axially outward from the shaft 17. A corresponding button for releasing the first roller brush 10 may be arranged on the opposite side not visible here. Likewise, the locking mechanism can be designed such that only the push button 18 has to be actuated, so that it has to be pressed in order to release the two roller brushes 10, 11, i.e. to be able to be pulled off the shaft 17.

Fig. 4 shows a schematic side view of the second roller brush 11 in an alternative embodiment, to which the side brush 14 is attached to the second roller brush 11, in the embodiment shown here the side brush 14 having a surface area 19 which tapers in the axial direction and is thus arranged obliquely or at an angle to the jacket element 28 of the second roller brush 11. The side bristles 15 project from the surface region 19 and extend obliquely at an angle different from 0 ° and 90 ° to the bristles 12 of the second roller brush 11.

The angle and the lengths of the

bristles

12, 15 are matched to one another in such a way that the bristles 12 of the second roller brush 11 and the side bristles 15 of the side brush 14 lie on the brush 11, 14 in the radial direction on a common imaginary cylinder, closing the envelope surface 20. This applies to at least some of the bristles 12 and the side bristles 15.

Fig. 5 shows a schematic detailed perspective view on the rear side of the cleaning cleaner 1. In particular, the water connection 5 is shown here in detail. The water connection 5 is here designed as part of a conventional plug connection, so that the water hose can be connected to the cleaning device 1 by simply inserting it over the water connection 5, so that it is tensile but can be detached without tools, while the water hose can produce the water connection 5. It is not visible here that there is a channel or duct inside the cleaning device 1 through which water entering the water connection 5 can flow from the water hose to the brush accommodating space 16.

Fig. 6 shows a schematic perspective detailed view of the handle 21 arranged on the bar 6 of the cleaning device 1. The handle 21 is held on the rod 6 by a clamp-like holder. A screw 22 with a handle for tool-free rotation of the screw 22 is provided so that the fastener can be opened and closed manually. When the holder is open, the handle 21 can be moved to different positions in the longitudinal direction of the bar 6. If the appropriate position is found, the screw 22 can be tightened to secure the handle 21 at the selected position on the rod 6.

The handle 21 here has a substantially arcuate or arched shape, i.e. it completely surrounds the inner region 23 in one plane. In the present case, two crossbars 24 are provided, which extend in the area enclosed or encompassed by the inlet 21 in said plane. A subdivision is thus achieved by the crossbar 24, which results in two zones separated from the inner zone 23 and also completely enclosed in the above-mentioned plane by the handle 21. These higher regions form here a hose guide 25 through which the water hose can pass. Both the inner region 23 and the hose guide 25 open perpendicular to the mentioned plane, that is to say can be operated.

Figure 7 shows a schematic detail view of a part of the lever 6 of the cleaning device 1. In the partial region of the lever 6 shown here, there are a rotation control 26 for controlling the motor speed and a rotation control 27 for manual operation. The rotation direction or the rotation direction of the arranged motor is switched. The rotary control 26 for speed control is designed as a rotary wheel partially embedded or integrated in the bar 6, that is to say as a rotary control, in order to preferably steplessly adjust or adapt the motor speed of the electric motor. However, the rotation controller 27 may have two switching positions, which correspond to two possible opposite rotation directions of the motor. The rotation controller 26 and the rotation controller 27 may here preferably be connected to an electric motor or a motor controller or control means for controlling the electric motor via electric or signal lines extending inside the rod 6.

Fig. 8 shows a further example of a schematic bottom view of the cleaning device 1, in which two roller brushes 10, 11 are arranged in the brush accommodating space 16 and the side brush 14 is inserted onto the second roller brush 11. In the roller brushes 10, 11, the respective bristles 12 are at least substantially perpendicular to the respective casing element 28. In addition, the two roller brushes 10, 11 have inclined bristles 29 here, which are at an angle to the bristles 12 and the inclined bristles 29. The inclined bristles 29 are each inclined or inclined in the direction of the other of the two roller brushes 10, 11, i.e. in the direction of the connecting region 13. The inclined bristles 29 thus at least partially cover the connection region 13. The side brush 14 also has two differently arranged sets of bristles. On the one hand, they are oblique side hairs 15. On the other hand, they are straight hairs 30. In the mounted position, the side brush 14 is inserted over the first roller brush 10, the second roller brush 11 and the respective first roller brush 10, the second roller brush 11 on the shaft brush 17. The straight bristles 30 are located in the brush receiving space 16 and extend at least substantially parallel to the axis 17. The straight bristles are surrounded by inclined vertical side bristles 15 arranged in a ring. By combining the side hairs 15 and the straight hairs 30, a particularly thorough and uniform cleaning can advantageously be achieved.

In general, the exemplary embodiments described and illustrated herein show how an improved brush-based device for efficient and comfortable motor-assisted cleaning of surfaces can be advantageously designed.

Claims

1. An electric cleaning apparatus for motor assisted cleaning of a surface, comprising:

-a housing (2) with a motor receiving space, in which an electric motor is accommodated, a battery socket being electrically connected to the electric motor for receiving at least one battery (3) for powering the electric motor, and an environment area with a cleaning device (1) being open towards a brush receiving space (16), wherein at least one shaft (17) is mechanically connected to and driven by the electric motor for receiving at least one roller brush (10, 11) for cleaning a surface,

-an elongated rod (6) connected to the housing (2) and extending from the housing (2), the longitudinal direction of extension of the rod (6) extending at least perpendicular to the axis (17), and

-a water connection (5) for connecting a water hose, extending from the water connection (5) to a passage in the brush accommodation space (16) through which water can flow.

2. The motorized cleaning apparatus for motor-assisted cleaning of a surface according to claim 1,

the battery receptacle has a circumferential seal against which the circumferential seal rests when a battery is inserted into the battery receptacle.

3. An electric cleaning apparatus for motor-assisted cleaning of surfaces according to claim 1 or 2, characterized in that,

the battery socket has at least two slots for corresponding at least two batteries (3) for supplying power to the motor in series and/or in parallel.

4. An electric cleaning apparatus for motor-assisted cleaning of surfaces according to claim 1 or 2, characterized in that,

the cleaning device (1) is arranged for cleaning a surface in a direction of movement of the cleaning device, which is at least perpendicular to the shaft (17) and the rod (6), the brush receiving space (16) on the front side of the cleaning device (1) being opposite to the water connection (5) on the rear side of the cleaning device (1).

5. The motorized cleaning apparatus for motor-assisted cleaning of a surface according to claim 1,

the shaft (17) has two portions extending from a central connection zone (13) through which the mechanical connection of the shaft (17) to the motor is made in opposite directions, able to plug the connection zone (13) facing away from the respective roller brush (10, 11).

6. The motorized cleaning apparatus for motor-assisted cleaning of a surface according to claim 5,

the cleaning device (1) comprises two roller brushes (10, 11) which can be inserted onto a part of the shaft (17), the roller brushes (10, 11) each having inclined bristles (29) which are angled relative to a cylindrical jacket element (28) of the respective roller brush (10, 11) such that, when both roller brushes (10, 11) are mounted on the shaft (17), the inclined bristles (29) are inclined relative to each other along the roller brushes (10, 11) and at least partially cover the connecting region (13).

7. The motorized cleaning apparatus for motor-assisted cleaning of a surface according to claim 6,

at least one roller brush (10, 11) can be mounted on the shaft (17) without tools or can be detached from the shaft (17) without tools.

8. The motorized cleaning apparatus for motor-assisted cleaning of a surface according to claim 7,

in the shaft (17), a manually releasable locking mechanism for holding the roller brush (10, 11) on the shaft (17) is integrated.

9. The motorized cleaning apparatus for motor-assisted cleaning of a surface according to claim 8,

the locking mechanism comprises at least one pin and a spring button (18) mechanically connected thereto, the button (18) being arranged on an end face of the shaft (17), which end face is surrounded by a jacket element (28) forming the shaft (17) and can be pressed in along the longitudinal device axis (17), at least one pin being used to hold the roller brush (10, 11) radially outward beyond the jacket element (28) at least in a direction perpendicular to the longitudinal device axis and to release the roller brush (10, 11) from being sucked radially inward into the jacket element (28) by pressing in the button (18).

10. The motorized cleaning apparatus for motor-assisted cleaning of a surface of claim 9,

the locking mechanism has at least one spring element, the spring force of which pushes the push button (18) axially outwards and has the at least one pin pushed radially outwards.

11. The motorized cleaning apparatus for motor-assisted cleaning of surfaces according to claim 9 or 10,

the at least one pin and/or the roller brush (10, 11) has a contact area which is inclined with respect to the direction of movement of the pin when the button (18) is actuated and at a point on the shaft (17) where the pin of the roller brush (10, 11) and the roller brush (10, 11) contact one another, so that when the roller brush (10, 11) is inserted, the pin is initially pressed radially inward against the spring force until it is no longer covered by the roller brush (10, 11) until it is pressed radially outward by the spring force.

12. The motorized cleaning apparatus for motor-assisted cleaning of a surface according to claim 1,

the cleaning device (1) comprises at least one roller brush (10, 11) with bristles (12) projecting radially outwards and, in addition, at least one side brush (14) with side bristles (15) which, in a predetermined installation position of the roller brush (10, 11) and the side brush (14), are at an angle to the bristles (12) of the roller brush (10, 11).

13. The motorized cleaning apparatus for motor-assisted cleaning of a surface according to claim 12,

the side brushes (14) have an annular, tapering, outwardly directed first surface region (19), from which surface region (19) the side bristles (15) of the side brushes (14) project at least perpendicularly outwardly.

14. The motorized cleaning apparatus for motor-assisted cleaning of surfaces according to claim 12 or 13,

the side brushes (14) have a second surface area which is located in the intended mounting position of the side brushes (14) and the roller brushes (10, 11) at least perpendicular to the shaft (17), from which second surface area at least part of the side bristles (15) of the side brushes (14) protrude at least perpendicularly outwards.

15. The motorized cleaning apparatus for motor-assisted cleaning of a surface according to claim 14,

a tool-free reversible mechanical plug connection is provided, by means of which the side brush (14) can be connected to the roller brush (10, 11) by being axially inserted onto the axially outer end of the latter.

16. The motorized cleaning apparatus for motor-assisted cleaning of a surface according to claim 15,

the respective lengths of the brush hairs (12) of the roller brush (10, 11) and the side hairs (15) of the side brush (14), and the roller brush (10, 11) and the side brush (14) are coordinated with each other such that in an intended mounting position of the roller brush (10, 11) and the side brush (14), the brush hairs (12) of at least some of the roller brush (10, 11) and at least some of the side hairs (15) of the side brush (14) are in the same position, the roller brush (10, 11) and the side brush (14) ending in a common imaginary envelope surface (20) which surrounds the roller brush (10, 11) and the side brush (14) in a cylindrical shape.

17. The motorized cleaning apparatus for motor-assisted cleaning of a surface of claim 16,

the side bristles (15) of the side brush (14) have a length, measured radially outward from the outer solid surface side brush (14), of 25mm to 40 mm.

18. The motorized cleaning apparatus for motor-assisted cleaning of a surface according to claim 1,

the cleaning device (1) comprises a roller brush (10, 11) and bristles (12) of the roller brush (10, 11), the length of which, measured radially outwards from the cylindrical exterior of the roller brush (10, 11), is 22mm to 30 mm.

19. The motorized cleaning apparatus for motor-assisted cleaning of a surface according to claim 1,

the cleaning device (1) comprises at least one roller brush (10, 11) and a side brush (14), wherein the brush hairs (12) and the side brush hairs (15) are made of polyamide and have a diameter of 0.9 mm.

20. The motorized cleaning apparatus for motor-assisted cleaning of a surface according to claim 1,

the cleaning device (1) comprises at least one roller brush (10, 11) for cleaning wooden surfaces and side brushes (14), the bristles (12), the side bristles (15) being made of polyamide and having a diameter of 0.6 mm.

21. The motorized cleaning apparatus for motor-assisted cleaning of a surface according to claim 1,

the cleaning device (1) comprises at least one roller brush (10, 11) and a side brush (14) for cleaning the surface of stone or metal, and the brush bristles (12) and the side bristles (15) are composed of metal wires with the diameter of 0.15mm to 0.5 mm.

22. The motorized cleaning apparatus for motor-assisted cleaning of a surface of claim 21,

the brush bristles (12) and the side bristles (15) are made of brass-coated steel.

23. The motorized cleaning apparatus for motor-assisted cleaning of a surface according to claim 1,

the brush receiving space (16) starting from the shaft (17) is limited in at least one radial direction by a cover (4), which cover (4) is curved in the circumferential direction in the region around the shaft (17) and is open in the axial direction, and the cleaning device (1) delimits elements (9) from the outside, reversibly connected in the radial direction on the cover (4), axially limiting the brush receiving space (16) when mounting them on the cover (4).

24. The motorized cleaning apparatus for motor-assisted cleaning of a surface according to claim 1,

the cleaning device (1) has a speed control device for manually setting the motor speed, the operating elements of which are designed as a rotary control (26) for speed regulation being integrated in the lever (6) of the cleaning device (1).

25. The motorized cleaning apparatus for motor-assisted cleaning of a surface according to claim 1,

the electric motor is arranged to be operable in different directions of rotation, and a rotation control (27) for motor rotation is mounted on the shaft (6) of the cleaning device (1) for manually switching the direction of rotation of the electric motor.

26. The motorized cleaning apparatus for motor-assisted cleaning of a surface according to claim 25,

the cleaning device (1) has a mechanical and/or electronic lock which automatically prevents the switching of the direction of rotation of the motor as long as the current speed of the motor is greater than a predetermined threshold.

27. The motorized cleaning apparatus for motor-assisted cleaning of a surface according to claim 1,

the shaft (6) of the cleaning device (1) is designed as a component consisting of a plurality of mutually opposing elements which can be moved relative to one another.

28. The motorized cleaning apparatus for motor-assisted cleaning of a surface of claim 27,

the telescope bar (6) is fitted with telescope elements that can be removed to change the length of the telescope bar (6) and can be fixed to lock the length of the telescope bar (6).

29. The motorized cleaning apparatus for motor-assisted cleaning of a surface of claim 28,

the locking element (7) is designed to be rotatable about the longitudinal direction of the rod (6), the length change being detachable by rotating the locking element (7) in a first direction, and the rod element for fixing the length of the telescope rod (6) being fixable by rotating the locking element (7) in a second direction.

30. The motorized cleaning apparatus for motor-assisted cleaning of a surface according to claim 1,

on the rod (6), laterally in the longitudinal direction of the rod (6), a further handle (21) of the rod (6) is arranged at an angle of between 30 ° and 150 °.

31. The motorized cleaning apparatus for motor-assisted cleaning of a surface according to claim 30,

a holder is provided, by means of which the handle (21) can be detached from the rod (6) and fixed to the rod (6) without tools, so that the handle (21) can be manually placed at different positions in the longitudinal direction of the rod (6).

32. The motorized cleaning apparatus for motor-assisted cleaning of a surface of claim 31,

the handle (21) has an arcuate shape, so that it completely surrounds, at least with the rod (6), in at least one plane, an open interior region (23) of the handle (21), which can be penetrated by a user.

33. The motorized cleaning apparatus for motor-assisted cleaning of a surface of claim 32,

at least in one level, the hose guide (25) for the water hose of the handle (21) completely encloses a separate area in a plane, which can be penetrated perpendicular to the plane, so that the water hose can pass through the separate area and then through the handle (21) at least in certain areas along the pole (6).