Cleaning assembly for suctioning a suction substrate by means of a suction apparatus

Abstract

The invention relates to a cleaning assembly (300) for suctioning a suction substrate by means of a suction apparatus (254; 268), the cleaning assembly comprising: - an adapter device (10; 110) comprising a first turbine unit (12; 112) that can be driven by a primary suction air stream of the suction apparatus (254; 268); a second turbine unit (18; 118) that can be driven to generate a secondary suction air stream for suctioning the suction substrate; and a transmission unit (20; 120) that is coupled to the first turbine unit (12; 112) and the second turbine unit (18; 118); driving of the first turbine unit (12; 112) by the primary suction air stream can be used via the transmission unit (20; 120) to drive the second turbine unit (18; 118) in order to generate the secondary suction air stream; and - at least one collection container unit (41) that is designed to separate the suction substrate suctioned in by the secondary suction air stream from the secondary suction air stream and receive the separated suction substrate.

Description

[0001] Cleaning arrangement for sucking a suction substrate by means of a suction device

[0002] The present invention relates to a cleaning arrangement for sucking a suction substrate by means of a suction device.

[0003] Vacuum cleaners with a cleaning function, so-called vacuum cleaning devices, are known from the state of the art. Some are designed as dry vacuum cleaners, others as wet vacuum cleaners, and still others as combined wet / dry vacuum cleaners. Dry vacuum cleaners are typically used primarily in households, as they are comparatively inexpensive and available in a wide variety of versions. This also applies to commercial cleaning, for example, room cleaning in hotels. However, vacuum cleaners that are not intended for cleaning are also known. Therefore, instead of a vacuum cleaner, one can generally speak of a vacuum source.

[0004] If liquid or moist air is sucked up with a dry vacuum cleaner, this leads to numerous problems. Liquid can get into the suction turbine of the dry vacuum cleaner and damage it. In general, liquid can also include water. Furthermore, liquid can come into contact with other electrical components of the dry vacuum cleaner in addition to the suction turbine. This can impair or damage the electrical components. Furthermore, liquid that comes into contact with electrical components can pose a safety risk to an operator. In addition, the dry vacuum cleaner usually includes an air filter that is arranged in front of the suction turbine to remove contaminants such as dust from the air sucked in by the suction turbine before it is fed to the suction turbine. If the air filter comes into contact with liquid or if moisture from the sucked in air accumulates in it, the filter can be damaged.

[0005] The problems described above as examples mean that a dry vacuum cleaner cannot be used for wet vacuuming or for combined wet / dry vacuuming.

[0006] However, there are situations in which it is advantageous to also vacuum liquid or moist air. For example, some surfaces to be cleaned require treatment with liquid to achieve good cleaning results. However, the liquid applied to the surface to be cleaned often has to be removed from the surface to be cleaned after treatment, along with the dirt it has absorbed. Another example is cleaning after a flood, where it is often necessary to remove a mixture of water and dirt from parts of a building, especially basements. Removal should be done quickly to minimize damage to the building's structure. A typical dry vacuum cleaner is unsuitable for all of the applications described above. Wet vacuum cleaners or combined wet / dry vacuum cleaners, for example, are often not available in households.This is also due to their higher purchase costs and often bulky design. During flood events, wet vacuum cleaners or combined wet / dry vacuum cleaners are often not readily available, as demand suddenly increases and available wet vacuum cleaners or combined wet / dry vacuum cleaners are quickly sold out.

[0007] When hotel rooms are cleaned, the room itself is usually cleaned with a dry vacuum cleaner. The bathroom or wet room, however, is only cleaned with a dry vacuum cleaner if it is ensured that no moisture is sucked in. However, especially when cleaning wet rooms, it would be advantageous if any liquid or a mixture of liquid and / or air that may have been spread during cleaning could also be vacuumed up.

[0008] It is therefore an object of the invention to provide a simple solution for sucking liquid. Furthermore, it is an object of the invention to provide a cost-effective solution for sucking liquid.

[0009] At least one of the above-mentioned objects is achieved by the cleaning arrangement according to claim 1. The dependent claims relate to advantageous developments of the invention.

[0010] The invention relates to a cleaning arrangement for vacuuming a suction substrate by means of a suction device, comprising: an adapter device comprising a first turbine arrangement that can be driven by a primary suction air flow of the suction device; a second turbine arrangement that can be driven to generate a secondary suction air flow for vacuuming the suction substrate; and a transmission arrangement that is coupled to the first turbine arrangement and the second turbine arrangement, wherein driving the first turbine arrangement by the primary suction air flow via the transmission arrangement can be used to drive the second turbine arrangement to generate the secondary suction air flow; and at least one collecting container arrangement that is configured to separate the suction substrate sucked in by the secondary suction air flow from the secondary suction air flow and to collect it.

[0011] The utilization according to the invention can comprise that a drive effect resulting from the primary suction air flow at the first turbine arrangement acts at least partially on the transmission arrangement and / or is transmitted thereto, and the transmission arrangement is configured to transmit the drive effect at least partially to the second turbine arrangement for driving the same.

[0012] The invention makes it possible to use the primary suction air flow as a drive for generating the secondary suction air flow. Two different suction air flows are present simultaneously. While the primary suction air flow thus has the function of driving the primary turbine arrangement, whereby the second turbine arrangement is driven by the transmission arrangement to generate the secondary suction air flow, the secondary suction air flow has the function of sucking or collecting a suction substrate from a surface to be cleaned. The suction substrate can comprise solid substances such as dust or dirt particles, or even liquid and / or moisture. Of course, the suction substrate is preferably at least partially separated from or separated from the secondary suction air flow before it is fed to the secondary turbine arrangement in order to avoid damage to the secondary turbine arrangement.Thus, the second turbine arrangement can be designed to extract air from the collecting container arrangement or a collecting container of the collecting container arrangement by means of the secondary suction air flow. The collecting container arrangement or the collecting container is configured to separate the suction substrate from the secondary suction air flow and at least partially collect it.

[0013] The invention makes it possible to provide a dry vacuum cleaner as the suction device, which can then be used to suck up liquid and / or moist air. The adapter device decouples the primary suction air flow from the secondary suction air flow, thus preventing damage to the dry vacuum cleaner caused by the suction substrate, in particular moist air and / or liquid. Thus, the suction device sucks in the primary suction air flow, but not the secondary suction air flow. This also prevents the risk of a short circuit in the dry vacuum cleaner.

[0014] The cleaning arrangement according to the invention is a compact and cost-effective solution that allows a dry vacuum cleaner to vacuum a suction substrate containing liquid and / or moist air. The suction substrate is separated from the secondary suction air stream and collected in the collection container. Thus, there is no risk of the moist or wet suction substrate coming into contact with the dry vacuum cleaner, because the primary suction air stream and the secondary suction air stream are structurally separated from each other in the adapter device.

[0015] According to a further development of the invention, it can be provided that the collection container assembly is designed to be connectable to the adapter device. It can also be provided, for example, that the collection container assembly can be decoupled from the adapter device. Thus, the cleaning assembly can be disassembled into several smaller individual parts, for example, for transport purposes, storage, emptying the collection container assembly, or for its maintenance.

[0016] According to a further embodiment, the adapter device and the collecting container arrangement can be firmly, in particular rigidly, connected to one another in the coupled state. This enables simple force transmission between the adapter device and the collecting container arrangement.

[0017] According to a further development of the invention, the adapter device and the collecting container arrangement can be designed as an integral component. In other words, the adapter device and the collecting container arrangement are permanently coupled and structurally connected to one another. This enables a particularly compact design of the cleaning arrangement. Furthermore, the adapter device and the collecting container arrangement then form a structural unit.

[0018] According to an alternative embodiment of the invention, the

[0019] The cleaning arrangement may further comprise a hose arrangement configured to couple the adapter device and the collection container arrangement. This makes it possible to arrange the adapter device spatially separate from the collection container arrangement, wherein the secondary suction air flow can then still be discharged from the collection container arrangement to the adapter device. Thus, the adapter device can be carried by an operator, for example, in the form of a backpack, while other components of the cleaning arrangement, such as the collection container arrangement or a cleaning tool, can be operated, in particular relocated, by an operator. The part to be operated by an operator is thus comparatively light.

[0020] According to one aspect of the invention, it can be provided that the collecting container arrangement and / or the adapter device comprises a geometric rotational body.

[0021] According to one aspect of the invention, it can be provided that the collection container arrangement is essentially tubular, in particular cylindrical. This promotes a particularly compact design. Furthermore, the tubular design can reduce the number of corners and edges. This can prevent or at least reduce the accumulation of components of the suction substrate in corners and edges of the collection container arrangement. Furthermore, the tubular design enables good grip for an operator. In addition to a tubular design, other geometric shapes or combinations thereof can also be provided. Examples include a spherical shape, cuboid shape, cube shape, prism shape, cylinder shape, pyramid shape, cone shape or other polygonal bodies, as well as extrudable bodies. In general, tubular means that an elongated hollow body is provided which is designed to guide a medium.

[0022] According to one aspect of the invention, the length of the collecting container arrangement can be a multiple of its height and / or width and / or diameter. Preferably, the ratio is at least 5:1, particularly preferably at least 8:1.

[0023] According to one embodiment of the invention, the collection container assembly can include at least one viewing window. This allows an operator to view the interior of the collection container assembly, for example, to determine the fill level of the absorbent substrate in the collection container assembly. This also makes it easier for an operator to determine when the collection container assembly needs to be emptied.

[0024] According to a further development of the invention, the collection container assembly or the collection container can comprise at least sections of transparent material. For example, the collection container assembly can also be made entirely of transparent material. This also allows an operator to view the interior of the collection container assembly, for example, to determine the fill level of the absorbent substrate in the collection container assembly. This also makes it easier for an operator to determine when the collection container assembly needs to be emptied.

[0025] According to one aspect of the invention, the collection container assembly comprises an emptying opening that allows the absorbent substrate to be removed from the collection container assembly. A lid assembly can be provided that allows the emptying opening to be opened or closed. Additionally or alternatively, the collection container assembly can be emptied via the interface with which the collection container assembly is coupled to the adapter device or can be coupled to it.

[0026] According to one aspect of the invention, it can be provided that the collection container arrangement and / or the adapter device is designed as a supporting structure of the cleaning arrangement. This results in a particularly stable design of the cleaning arrangement. For example, force and / or torque can be transmitted from one area of ​​the collection container arrangement to another area of ​​the collection container arrangement. This can facilitate cleaning by means of the cleaning arrangement. This is because if a cleaning tool is also coupled to the collection container arrangement, the cleaning tool can also be moved by moving the collection container arrangement. Additionally or alternatively, it can be provided that the adapter device or the cleaning arrangement comprises a supporting structure to which the collection container arrangement can be coupled.

[0027] According to one embodiment of the invention, it can be provided that the collection container arrangement and / or the adapter device is designed to be positionally variable, in particular tiltable. The collection container arrangement can be designed to be positionally variable, in particular tiltable, together with and / or separately from other components of the cleaning arrangement. This enables easy handling of the collection container arrangement and / or the adapter device. Positionally variable can include the collection container arrangement and / or the adapter device being pivotable within one plane, within two planes and / or multiple planes. Furthermore, pivotability about one or more pivot axes or a pivot point can be provided. The planes, pivot axes or pivot points can be designed to be stationary or to vary spatially with respect to the collection container arrangement and / or the adapter device.The planes and / or the pivot axes can be orthogonal to each other or aligned at a predetermined angle. When "positionally variable" or "pivotable" is mentioned here, this can also include inclinability or tiltability. "Positionally variable" may mean that purely translational positional changes are not included. Thus, "positionally variable" can be limited to one or more rotational positional changes or combined translational and translational positional changes.

[0028] According to one aspect of the invention, it can be provided that the cleaning arrangement comprises a closing body which, in its closed position, is designed to close a passage through which the primary or secondary suction air flow flows during operation. Furthermore, the closing body can be designed to release the primary or secondary suction air flow in its open position. In the case of the secondary suction air flow, the closing body in its closed position can reliably ensure that no suction substrate, in particular no liquid, escapes from the collection container arrangement to the second turbine arrangement. In this way, the cleaning arrangement can also be safely stored and relocated. The closing body can be designed to assume the closed position when the suction substrate in the collection container arrangement reaches a predetermined level or a predetermined quantity.In the case of the primary suction air flow, the closed position can reliably ensure that suction substrate cannot reach the suction device even accidentally and despite the decoupling of the two suction air flows.

[0029] According to a further aspect of the invention, the cleaning arrangement comprises a force actuator for generating an actuating force by means of which the closure body can be urged into the closed position and / or open position. The force actuator can comprise a magnetic force for generating the actuating force. The force actuator can be activatable and / or deactivatable. The force actuator can be controllable. Preferably, the force actuator is controlled or activated and / or deactivated as a function of a control signal. The control signal can be based on a signal from a sensor, such as an inclination sensor and / or a fill level sensor, etc., of the collection container arrangement.

[0030] According to a further development of the invention, the cleaning arrangement comprises a control arrangement configured to control at least the force actuator. The control arrangement is preferably configured to perform a control based on signals, for example, a signal from a fill level sensor in the collection container arrangement for measuring the fill level of the suction substrate, from an inclination sensor, for example, for measuring the inclination of the collection container arrangement, or the like.

[0031] According to a further development of the invention, the cleaning arrangement comprises at least one handle arrangement configured for gripping by an operator and designed to be permanently coupled or connectable to the adapter device and / or the collecting container arrangement. This can make the cleaning arrangement easier for an operator to handle. This can facilitate the use of the cleaning arrangement and also handling when not in use, for example, during transport or storage. The connectable design allows an operator to provide the handle arrangement when it is actually advantageous for the operator and to decouple it accordingly when it is not needed. Permanently coupled can comprise an integral design.

[0032] According to one embodiment of the invention, the handle assembly for coupling can be provided with an actuatable connection mechanism, which, when actuated, is configured to couple and / or decouple the handle assembly with the adapter device and / or the collection container assembly. Thus, the handle assembly can be easily added or removed as needed. This allows an operator to only provide the handle assembly when it is actually beneficial. For example, when the cleaning assembly is stowed away, the handle assembly can be easily removed to keep the cleaning assembly compact.

[0033] According to a further embodiment of the invention, the handle assembly can comprise a user-graspable handle portion and a handle base portion configured for coupling to the adapter device and / or the transmission assembly, wherein a position of the handle portion relative to the handle base portion is adjustable. This makes it easier for an operator to adjust the ergonomic position of the handle assembly. When the cleaning assembly is stowed, the handle assembly can be moved into a compact position.

[0034] According to a further development of the invention, the cleaning assembly can further comprise a tool connection interface for coupling to a cleaning tool, wherein the secondary suction air flow can be discharged from the cleaning tool via the tool connection interface. The tool connection interface makes it possible to couple different cleaning tools to the cleaning assembly. This makes the cleaning assembly versatile.

[0035] Advantageously, the tool connection interface is formed on the collection container assembly or on a tool connection module coupled to the collection container. This allows the vacuumed substrate to be fed directly to the collection container assembly. Overall, this allows for a compact design of the cleaning assembly.

[0036] According to one embodiment of the invention, the tool connection interface can comprise an electrical contact arrangement configured to establish electrical contact with the cleaning tool. The electrical contact can be useful, for example, for transmitting sensor signals from or to the cleaning tool. Furthermore, electrical current can be supplied to the cleaning tool via this interface, for example, to operate electric motors, particularly for driving cleaning tools such as cleaning brushes or rollers.

[0037] According to a further development of the invention, the tool connection interface can be configured to essentially rigidly couple the cleaning tool or a part of the cleaning tool. This enables force transmission to the cleaning tool during operation.

[0038] According to one aspect of the invention, the cleaning arrangement can comprise at least one power supply interface for establishing electrical contact with a power source. Advantageously, the power supply interface is formed on the adapter device or the collection container arrangement. The power supply interface makes it possible to provide additional electrical energy via the power source. This can be used, for example, to operate a cleaning tool coupled to the cleaning arrangement.

[0039] According to one embodiment of the invention, it can be provided that the power supply interface comprises a mounting arrangement which is designed to releasably receive a rechargeable battery.

[0040] According to a further development, the cleaning arrangement comprises a primary connection interface for coupling to the suction device, wherein the primary suction air flow from the adapter device for driving the first turbine arrangement can be discharged via the primary connection interface. In this case, it can be provided that the primary connection interface is designed such that it can be adapted to the suction device, in particular in terms of its geometry and / or size. For this purpose, an adjustment mechanism can be provided which can be actuated to change the geometry or size of the primary connection interface. Additionally or alternatively, the primary connection interface can have a plurality of interface sections for coupling to a respective suction device. These interface sections can have different geometries and / or sizes. Overall, the embodiments enable counterparts orSuction device connectors of different geometries can be coupled to the primary connection interface. This makes it possible to couple the adapter device to a variety of suction devices available on the market or to make them compatible with them. The adapter device can thus be universally coupled to various suction devices. The primary connection interface can comprise a thread, a bayonet lock, a clamping mechanism, or the like.

[0041] According to one embodiment of the invention, the primary connection interface can be configured to essentially rigidly couple the suction device to the adapter device. This enables force transmission between the suction device and the adapter device. If the secondary connection interface and the collection container are also rigid, a rigid unit can be formed. This unit is easy to operate.

[0042] According to a further development of the invention, the cleaning arrangement further comprises a hose arrangement coupled to the adapter device for guiding the primary suction air flow. The hose arrangement is preferably coupled to the primary connection interface. The hose arrangement enables the suction device to be arranged spatially separate and displaceable relative to the adapter device. For example, the suction device can be carried by an operator, for example in the form of a backpack. The primary suction air flow can then be discharged from the adapter device via the hose arrangement. The cleaning arrangement thus remains comparatively lightweight and is easy to operate by an operator. The hose arrangement is preferably elastic.

[0043] According to a further development of the invention, the cleaning arrangement further comprises a hose arrangement which couples the adapter device and the collecting container arrangement to one another. The hose arrangement is preferably coupled to the primary connection interface. The hose arrangement makes it possible to arrange at least the adapter device spatially separate and displaceable relative to the collecting container arrangement. For example, the adapter device can be carried by an operator together with the suction device, for example in the form of a backpack. The primary suction air flow can then be discharged from the collecting container arrangement via the hose arrangement. The part of the cleaning arrangement which is to be carried by an operator in his arms thus remains comparatively light. The hose arrangement is preferably designed to be elastic.

[0044] According to a further development of the invention, the cleaning arrangement comprises at least one fresh water container for holding fresh water. Fresh water refers to liquid, in particular water, that is intended for cleaning and is preferably uncontaminated. A cleaning substance such as soap, a detergent, or the like can be added to the fresh water. The cleaning arrangement preferably comprises a water dispensing arrangement configured to supply the fresh water from the fresh water container to a surface to be cleaned. For this purpose, an actuatable valve can preferably be provided in the water dispensing arrangement, which allows an operator to adjust the amount of water dispensed.

[0045] According to one embodiment of the invention, the collecting container arrangement comprises a riser pipe which is designed to at least partially guide the secondary suction air flow into the collecting container arrangement. One aspect relates to an adapter device for a suction device, in particular a vacuum cleaning device, comprising a first turbine arrangement which can be driven by a primary suction air flow of the suction device, a second turbine arrangement which can be driven to generate a secondary suction air flow, and a transmission arrangement which is coupled to the first turbine arrangement and the second turbine arrangement, wherein driving the first turbine arrangement by the primary suction air flow via the transmission arrangement can be used to drive the second turbine arrangement in order to generate the secondary suction air flow.

[0046] The utilization may comprise that a drive effect resulting from the primary suction air flow at the first turbine arrangement acts at least partially on the transmission arrangement and / or is transmitted thereto, and the transmission arrangement is configured to transmit the drive effect at least partially to the second turbine arrangement for driving the same.

[0047] According to this aspect, it is possible to use the primary suction air flow as a drive for generating the secondary suction air flow. At the same time, two different suction air flows are present. While the primary suction air flow has the function of driving the primary turbine arrangement, whereby the second turbine arrangement is driven by the transmission arrangement to generate the secondary suction air flow, the secondary suction air flow has the function of sucking or collecting a suction substrate from a surface to be cleaned. The suction substrate can comprise solid substances such as dust or dirt particles, or also liquid and / or moisture. Of course, the suction substrate is preferably at least partially separated from the secondary suction air flow before it is fed to the secondary turbine arrangement in order to avoid damage to the secondary turbine arrangement.Thus, the second turbine arrangement can be designed to use the secondary suction air flow to extract air from a collection container designed to hold liquid. Generally speaking, the collection container can be designed to at least partially hold the suction substrate.

[0048] The invention makes it possible to provide a dry vacuum cleaner as the suction device, which can then be used to suck up liquid and / or moist air. The adapter device decouples the primary suction air flow from the secondary suction air flow, thus preventing damage to the dry vacuum cleaner caused by the suction substrate, particularly moist air and / or liquid. This also prevents the risk of a short circuit in the dry vacuum cleaner.

[0049] According to a further development of the invention, the adapter device further comprises a barrier arrangement which provides at least one liquid barrier between the first and the second turbine arrangement. The barrier arrangement can serve as a type of splash guard which prevents, for example, liquid from the second turbine arrangement from reaching the first turbine arrangement. The barrier arrangement can thus have a labyrinth-like arrangement. According to a related aspect of the invention, it is further provided that the barrier arrangement separates the first turbine arrangement and the second turbine arrangement from one another in a substantially liquid-tight, in particular fluid-tight, manner. This ensures that at least no liquid, and in particular no moisture, can reach the second turbine arrangement from the first turbine arrangement.This prevents liquid from entering the secondary suction air stream, which could damage the suction device. The fluid-tight separation means that no exchange of a medium is provided between the second turbine arrangement and the first turbine arrangement. The two suction air streams are thus completely decoupled from one another, at least within the adapter device. This ensures extremely safe and reliable operation of the adapter device using a dry vacuum cleaner. In other words, the barrier arrangement can be designed to separate the primary and secondary suction air streams from one another in such a way that essentially no liquid and / or moisture can pass from the secondary suction air stream into the primary suction air stream. According to a development of the invention, it can be provided that the barrier arrangement comprises a sealing arrangement.The sealing arrangement may comprise a labyrinth seal.

[0050] According to one aspect of the invention, the barrier arrangement can be configured to at least partially support or at least partially form the transmission arrangement. This enables a compact design of the adapter device.

[0051] According to an advantageous embodiment of the invention, the

[0052] Adapter device further comprises a primary connection interface adapted to couple to the

[0053] Suction device is set up to drive the first turbine arrangement by means of the primary suction air flow. In this case, it can be provided that the primary connection interface is designed so that it can be adapted to the suction device, in particular in terms of its geometry and / or size. For this purpose, an adjustment mechanism can be provided which can be actuated to change the geometry or size of the primary connection interface. Additionally or alternatively, the primary connection interface can have a plurality of interface sections for coupling to a respective suction device. These interface sections can have different geometries and / or sizes. Overall, the embodiments make it possible for counterparts or connection pieces of the suction device of different geometries to be coupled to the primary connection interface. It is thus possible to couple the adapter device to or to a plurality of suction devices available on the market.to make them compatible. Thus, the adapter device can be universally coupled with various suction devices. The primary connection interface can comprise a thread, a bayonet lock, a clamping mechanism, a screw connection, or the like.

[0054] Alternatively or additionally, the adapter device can be coupled to a primary connection module, wherein the primary connection module has the primary connection interface as described above. Thus, a connector with a predetermined geometry can be provided on the adapter device for coupling to the primary connection module. While the design of the adapter device thus remains simple thanks to the connector, the adapter device can nevertheless be coupled to or is compatible with a variety of suction devices using the primary connection module.

[0055] According to a further development of the invention, the transmission arrangement couples the first turbine arrangement to the second turbine arrangement mechanically, pneumatically, hydraulically, or electrically, or by means of a combination thereof, in order to utilize the drive of the first turbine arrangement to drive the second turbine arrangement. For example, it can be provided that the transmission arrangement is configured to generate electrical energy based on the drive of the first turbine arrangement, wherein the second turbine arrangement can be driven by means of the electrical energy. Thus, the transmission arrangement can have a corresponding generator and a corresponding motor drive.Furthermore, the transmission arrangement can be designed such that driving the first turbine arrangement causes actuation of a fluid of the transmission arrangement, for example a hydraulic oil, wherein the transmission arrangement is further configured to drive the second turbine arrangement based on the actuation of the fluid.

[0056] According to a further development of the invention, it can be provided that the transmission arrangement comprises a shaft, and the first turbine arrangement is configured to drive the shaft, and the shaft is configured to drive the second turbine arrangement to generate the secondary suction air flow. The shaft can be driven directly or indirectly. Furthermore, the second turbine arrangement can also be driven directly or indirectly. Thus, according to the direct driving, it can be provided that the shaft couples the first turbine arrangement and the second turbine arrangement, in particular rigidly to one another. An indirect drive can, for example, comprise a clutch and / or a transmission, in particular with a step-up or step-down function.

[0057] According to a further development of the invention, the barrier arrangement can at least partially support the shaft. This allows the barrier arrangement to perform an additional function. Overall, this facilitates a compact design of the adapter device.

[0058] According to an advantageous embodiment of the invention, it can be provided that the first turbine arrangement comprises a primary turbine wheel that is configured to rotate about a primary axis of rotation, and the second turbine arrangement comprises a secondary turbine wheel that is configured to rotate about a secondary axis of rotation, wherein the primary and secondary axes of rotation are arranged substantially parallel to one another or coincide. For the sake of clarification, it should be mentioned that the primary turbine wheel is drivable by means of the primary suction air flow, and the secondary turbine wheel is configured to generate the secondary suction air flow. According to a preferred embodiment of the invention, the primary and secondary axes of rotation are congruent, i.e., coincide. This embodiment therefore relates to a special form of parallelism, namely a congruent arrangement of the two axes of rotation.This allows a particularly compact design of the adapter device to be achieved.

[0059] In this context, it can be provided that the secondary suction air flow, when driving the second turbine arrangement, initially flows parallel to the secondary rotational axis in order to be fed to the secondary turbine wheel, and then flows in a radial direction relative to the secondary rotational axis in order to flow away from the secondary turbine wheel. Thus, the movement of the secondary turbine wheel acts as an additional barrier between the secondary and primary suction air flow, in particular against the penetration of liquid and / or moisture. This is due to the centrifugal force that acts on any liquid and / or moisture and / or dirt adhering to the secondary turbine wheel during its driving, and carries such materials away in a radial direction.Alternatively, the secondary suction air flow can then also flow parallel to the rotational axis or at any angle relative thereto, in order to flow away from the secondary turbine wheel. Furthermore, it can be provided that the secondary suction air flow flows out within a predetermined angular range around the secondary rotational axis. Preferably, the primary suction air flow flows into the adapter device to the primary turbine wheel from outside this angular range.

[0060] According to a further development, the adapter device can comprise a reduction or transmission ratio. This can be provided in the transmission arrangement. For this purpose, a gear can be provided that converts a rotational speed of the first turbine arrangement into a different rotational speed for the second turbine arrangement. However, the reduction or transmission ratio can also be generated by different designs of the turbine wheels of the turbine arrangements, for example, by different blade geometries of the turbine wheels or sizes of the turbine wheels.

[0061] According to an advantageous development of the invention, the adapter device comprises an actuatable valve arrangement configured to adjust the proportion of the primary suction air flow acting on the first turbine arrangement. The actuatable valve arrangement can be designed as a throttle valve. The actuatable valve arrangement makes it possible to couple the adapter device to suction devices with different suction power or suction air flows of different sizes. If the suction power of a suction device is very high, for example, the valve arrangement can be at least partially opened so that only a portion of the primary suction air flow acts on the first turbine arrangement. In the case of a suction device with a low suction power, the valve arrangement can be completely or almost completely closed.Actuatable can include a configuration in which the valve arrangement adjusts the portion of the primary suction air flow acting on the first turbine arrangement depending on the strength of the primary suction air flow. Consider a spring arrangement that opens or closes a flap of the valve arrangement depending on the strength of the primary suction air flow. The term "strength" can encompass a predetermined volume flow. In addition to a spring arrangement, other at least partially automatic mechanisms can also be provided.

[0062] According to an advantageous aspect of the invention, the adapter device further comprises a secondary connection interface for coupling the adapter device to a module, wherein the secondary suction air flow can be at least partially discharged from the module in the coupled state. The module preferably comprises a collecting container for collecting liquid and / or dirt, but can also comprise a suction tube, a base unit, or a cleaning tool. The secondary connection interface can comprise a thread, a bayonet lock, a clamping mechanism, a screw connection, or the like.

[0063] According to a further development of the invention, a module from which the secondary suction air flow can be discharged can be formed integrally with the adapter device. Such a module can, for example, comprise a collecting container for collecting liquid and / or dirt.

[0064] According to a further development of the invention, the adapter device further comprises a collecting container for collecting liquid and / or dirt.

[0065] According to a further development of the invention, the adapter device further comprises at least one first electrical contact arrangement for supplying electrical current to the adapter device. The adapter device preferably further comprises a second electrical contact arrangement for at least partially transmitting the electrical current to a module coupled to the adapter device. The module comprises, for example, an electric motor-driven cleaning tool that can be driven by the electrical current.

[0066] According to a further development of the invention, the adapter device comprises a generator configured to generate electrical current to supply it to a module coupled to the adapter device, for example, a tool. For this purpose, at least one connection for discharging the electrical current can be formed on the adapter device. The generator can be driven by the primary suction air flow or the secondary suction air flow. The generator can, for example, generate a voltage level of 12 volts or 24 volts. This voltage level differs from that of conventional suction devices, which are usually operated at 230 volts. However, this voltage level is less hazardous and is typically used to drive tools or sensors.

[0067] According to an advantageous aspect of the invention, the adapter device can further include a receiving interface for coupling to an additional energy source, preferably a rechargeable battery. This makes it possible to supply additional energy, such as electrical current, to the adapter device. This energy can be provided, for example, to supply energy to a module coupled to the adapter device, such as an electric motor-driven cleaning tool.

[0068] According to one embodiment of the invention, the adapter device further comprises a handle assembly formed on the adapter device or coupled thereto, and configured to be actuated by an operator to move the adapter device. This facilitates operation of the adapter device by an operator.

[0069] According to a further development of the invention, the adapter device further comprises a housing, wherein the first turbine arrangement and / or the second turbine arrangement and / or the transmission arrangement are at least partially enclosed by the housing.

[0070] According to a further development of the invention, the housing comprises at least a first and a second housing part, which are designed to be coupled to one another. For example, the housing parts can be coupled to one another using a bayonet lock or threaded screw connection or the like. The two housing parts facilitate assembly and maintenance of the adapter device. Thus, the housing can be of modular design.

[0071] According to a further development of the invention, the adapter device has a modular design. For example, the first turbine arrangement and / or the second turbine arrangement and / or the transmission arrangement and / or the housing or the housing parts can each form a module. Furthermore, it can be provided that the modules are designed to be detachably coupled to one another. The modular design and the ability to be coupled enable simple assembly. Furthermore, it is easy to disassemble the adapter device for cleaning, maintenance, or to replace spare parts. Furthermore, turbine wheels of the turbine arrangements can be easily replaced, for example, in order to adapt the adapter device to vacuum sources with different suction power.

[0072] According to one aspect of the invention, it can be provided that the transmission arrangement and / or the second turbine arrangement and / or the first turbine arrangement can be activated and deactivated, in particular controllable. For this purpose, a controller can be provided, by means of which, for example, the transmission arrangement can be activated and deactivated. Furthermore, a sensor arrangement can be provided, wherein the transmission arrangement and / or the second turbine arrangement and / or the first turbine arrangement can be activated and deactivated based on a signal from the sensor arrangement. A fill level sensor for measuring a fill level of the suction substrate in a collection container can be provided as the sensor. Additionally or alternatively, a humidity sensor can be provided as the sensor. The signal can, for example, indicate that a predetermined humidity value has been exceeded in the secondary suction air flow.Additionally or alternatively, an inclination sensor can be provided as a sensor.

[0073] According to a further development of the invention, the adapter device can have at least one tertiary connection interface, wherein the secondary suction air flow can be at least partially discharged via the tertiary connection interface. The tertiary connection interface can be configured, for example, to be coupled to a hose. For example, it can comprise a suction connection. In this way, air and / or liquid sucked in by the secondary suction air flow, i.e. a suction substrate, can be at least partially discharged via the tertiary connection interface and fed to the hose for removal. This is particularly advantageous if the suction substrate was not removed or only partially removed from the secondary suction air flow before entering the adapter device. Even then, the suction substrate cannot enter the primary suction air flow and the suction device.Consider a liquid that can be sucked into the adapter device and expelled from the adapter device via the tertiary connection interface. This allows a suction substrate such as liquid to be sucked into the adapter device and expelled again in a controlled manner. This allows large quantities of liquid to be sucked in and expelled in a targeted manner, as is often necessary after a flood, for example. Instead of or in addition to the tertiary connection interface, a module such as a hose can also be integrally formed with the adapter device for discharging the suction substrate.

[0074] Furthermore, the invention relates to a cleaning arrangement comprising: an adapter device according to one of the types described above, and a suction device coupled to the first turbine arrangement for generating the primary suction air flow.

[0075] The suction device can be designed as a vacuum cleaning device, particularly as a dry vacuum cleaner. The suction device can be, for example, a handheld vacuum cleaner or a conventional vacuum cleaner. The suction device can be battery-operated.

[0076] The adapter device can be permanently installed in the cleaning arrangement and / or formed integrally with the cleaning arrangement. Alternatively, the adapter device can be designed as an exchangeable module of the cleaning arrangement. In general, it should be noted that the term "adapter" is to be understood broadly and can include not only a design as a module that is connected to other components via interfaces, but also an integral design. Integral here means in one piece with one or more other components or modules. Furthermore, even when the term "interface" is used, an integral design of the components that are connected to one another via the so-called "interface" can be provided instead of a connectable design.

[0077] Advantages, features and configurations explained in connection with the adapter device also apply to the cleaning arrangement and vice versa.

[0078] The invention is further explained below with reference to the accompanying drawings. They show:

[0079] Fig. 1 is a schematic representation of an adapter device according to the invention;

[0080] Fig. 2 is a schematic representation of an adapter device according to the invention in a state coupled to a collecting container; Fig. 3 is an exploded view of an adapter device according to the invention according to a further embodiment;

[0081] Fig. 4 is a sectional view of an adapter device according to the invention according to the further embodiment;

[0082] Fig. 5 shows an exemplary representation of the cleaning arrangement;

[0083] Fig. 6 is an exemplary exploded view of the collecting container arrangement;

[0084] Fig. 7 is an exemplary partial exploded view of the cleaning arrangement;

[0085] Fig. 8 is an exemplary illustration of the cleaning arrangement in a state coupled to an exemplary suction device;

[0086] Fig. 9 shows an exemplary representation of the adapter device with exemplary connectable suction devices;

[0087] Fig. 10a is an exemplary exploded view of a third handle arrangement;

[0088] Fig. 10b is an exemplary exploded view of a fourth handle arrangement;

[0089] Fig. 11 shows a representation of the cleaning arrangement with exemplary cleaning tools;

[0090] Fig. 12a shows a detailed view of the exemplary connection module;

[0091] Fig. 12b shows a further detailed view of the exemplary connection module; and

[0092] Fig. 13 a detailed view of an exemplary tool connection module.

[0093] Figure 1 shows a schematic representation of an adapter device 10 according to the invention for a suction device. The adapter device 10 comprises a first turbine arrangement 12, which can be driven by a primary suction air flow 14. The adapter device 10 further comprises a second turbine arrangement 16, which can be driven to generate a secondary suction air flow 18. The adapter device 10 further comprises a transmission arrangement 20, which is coupled to the first turbine arrangement 12 and the second turbine arrangement 16. The transmission arrangement 20 is designed such that driving the first turbine arrangement 12 by the primary suction air flow 14 can be used to drive the second turbine arrangement 16 to generate the secondary suction air flow 18.

[0094] Making use of the drive effect generated by the primary suction air flow 14 at the first turbine arrangement 12 acts at least partially on the transmission arrangement 20 and / or is transmitted thereto, and the transmission arrangement 20 is configured to transmit the drive effect at least partially to the second turbine arrangement 16 for driving the same.

[0095] The adapter device 10 comprises a housing 22 that encloses the first turbine assembly 12, the second turbine assembly 16, and the transmission assembly 20. The adapter device 10 further comprises a barrier assembly 24 that is arranged within the housing 22 and divides the housing 22 into a first or upper housing section 26 and a second or lower housing section 28. The barrier assembly 24 extends through the schematically illustrated transmission assembly 20. The barrier assembly 24 provides a substantially fluid-impermeable barrier such that, for example, no liquid or air can be exchanged between the two housing sections 26, 28, at least within the housing 22.

[0096] A primary connection interface 30 is formed at an upper end of the first turbine arrangement 12 and is designed to be coupled to a suction device. For this purpose, the primary connection interface 30 is formed with a circular cross-section, although other shapes are also possible. For the sake of simplicity, no suction device is shown here. However, the primary suction air flow 14 generated by the suction device and acting on the first turbine arrangement 12 is shown. If the suction device is coupled to the primary connection interface 26 and is in operation, so that the primary suction air flow 14 is generated, the primary suction air flow 14 flows from an intake opening 32 formed laterally on the first turbine arrangement 12, through the first turbine arrangement 12 and leaves the first turbine arrangement 12 via the primary connection interface 30 and flows into the suction device.The primary suction air flow 14 drives the first turbine arrangement 12. The transmission arrangement 20 is configured to utilize the drive of the first turbine arrangement 12 to drive the second turbine arrangement 16. For this purpose, the transmission arrangement 20, as shown here, can comprise a shaft arrangement 34 that mechanically couples the first turbine arrangement 12 to the second turbine arrangement 16, such that a mechanical movement of the first turbine arrangement 12, in particular of a turbine wheel of the first turbine arrangement 12, is transmitted to the second turbine arrangement 16, in particular a turbine wheel of the second turbine arrangement 16, by means of the shaft arrangement 34. The secondary suction air flow 18 is generated by driving the second turbine arrangement 16.The secondary suction air stream 18 flows via a secondary connection interface 36, which is formed at a lower end of the housing 22 on the second turbine arrangement 16, to an outflow opening 38, which is formed laterally on the housing 22 and laterally on the second turbine arrangement 16. In other words, driving the second turbine arrangement 16 creates a suction effect at the secondary connection interface 36, so that air, the secondary suction air stream 18, can be sucked in via the secondary connection interface 36. The secondary connection interface 36 is designed to be connected to a module, such as a suction pipe, a tool, or a ground unit. In the present case, the secondary connection interface 36 has a circular cross-section, although other shapes are also possible. The secondary suction air stream 18 can be used to suck liquid or a suction substrate.The adapter device 10 makes it possible to decouple the primary suction air flow 14 from the secondary suction air flow 18. This prevents any suction substrate, in particular no liquid or moisture, from passing from the secondary suction air flow 18 into the primary suction air flow 14 and to the suction device. Nevertheless, the primary suction air flow 14, which is generated by the suction device, can be used to generate the secondary suction air flow. By means of the adapter device 10, a suction device in the form of a dry vacuum cleaner can thus be converted to wet vacuuming. If a suction substrate such as liquid is to be sucked in and then expelled by means of the adapter device 10, similar to a pump, the outlet opening 38 can be designed as a connection interface, a so-called tertiary connection interface, for a hose for transporting the liquid away. This allows large quantities of liquid to be sucked in and expelled.

[0097] The housing 22 is cylindrical, although it could also be cuboid-shaped, circular, etc. Instead of coupling the module via the secondary connection interface 36, it is also possible to provide a connection interface or a connecting arrangement, such as a thread or a bayonet lock, on the housing 22 in order to discharge the secondary suction air flow from the module, for example, a collecting container, for suctioning a suction substrate.

[0098] Figure 2 is a schematic representation of an adapter device 10 according to the invention in a state coupled to a collecting container 40 of a collecting container arrangement 41. The structure of the adapter device 10 is based on that of Figure 1, but differs as follows. According to Figure 2, the lower housing section 28 forms the collecting container 40 or the collecting container arrangement 41. The first turbine arrangement 12 is arranged within a larger upper housing section 26. Due to the enlarged upper housing section 26, the primary connection interface 30 is formed on a pipe section 31 which couples the first turbine arrangement 12 to the primary connection interface 30. A liquid collection region 42 is provided in the collecting container 40.The secondary suction air stream 18 creates a negative pressure in the collection container 40, so that a suction substrate, in particular air and / or liquid and / or dirt, for example, can be sucked in from a surface to be cleaned via a suction pipe 44 arranged at a lower end of the housing 22 and leading into the collection container 40. The liquid is separated in the liquid collection region 42, so that only air is removed from the collection container 40 via the secondary suction air stream 18. For this purpose, the suction pipe 44 protrudes through the liquid collection region 42 and beyond it, so that an outlet opening 46 of the suction pipe 44 is arranged above the liquid collection region 42.Furthermore, a splash guard barrier 48 is formed in the collecting container 40 in the area between the outlet opening 46 and the second turbine arrangement 16. This shield-shaped barrier shields the outlet opening 46 at a distance from it and prevents the suction substrate from passing directly toward the second turbine arrangement 16 after exiting the intake pipe 44. Figure 3 relates to a schematic exploded view of an adapter device 110 according to the invention according to a further exemplary embodiment. The adapter device 110 is based on the functionality of the adapter device 10 according to Figures 1 and 2, but has a special structure.The adapter device 110 has a first housing section 126, a first turbine arrangement 112 with a primary turbine wheel 150, a barrier arrangement 124, a second turbine arrangement 118 with a secondary turbine wheel 152, a transmission arrangement 120 comprising a rigid shaft 154, and a second housing section 128. The shaft 154 is arranged on an axis A, about which the shaft 154 rotates during operation. The shaft 154 is configured to accommodate a first ball bearing 156 and a second ball bearing 158 in its central cylindrical region, wherein additionally or alternatively, other types of rolling bearings can also be provided. The ball bearings 156, 158 are configured to support the shaft 154 radially and axially relative to the barrier arrangement 124, wherein the shaft 154 is arranged to be rotatable relative to the barrier arrangement.For this purpose, an opening 160 is formed on the barrier arrangement 124, which is substantially axisymmetric relative to axis A and symmetrical with respect to a center plane arranged substantially orthogonally to axis A, along its center axis, which coincides with axis A. This opening is designed to receive the ball bearings 154, 156 and to contact them on their outer circumferential surface. A press fit can be provided for this purpose. On both sides along axis A, outer circumferential geometries (not shown) are formed on the shaft 154 with a smaller diameter, which are designed to receive corresponding inner circumferential geometries formed on the primary turbine wheel 150 and the secondary turbine wheel 152 and also arranged along axis A.The circumferential geometries are designed to form a positive connection, so that a rotation of the primary turbine wheel 150 or the secondary turbine wheel 152 leads to a rotation of the shaft 154 and vice versa. Instead of or in addition to the positive connection, a force-locking connection can also be provided, for example. External threads, again of a smaller diameter, are formed at the two ends of the shaft 154, onto which a respective shaft nut 162, 164 can be screwed. The first shaft nut 162 is designed to axially fasten the primary turbine wheel 150 on the shaft 154, and the second shaft nut 164 is designed to axially fasten the secondary turbine wheel 152 on the other hand on the shaft 154. The respective region provided adjacent to the central cylindrical region with an outer circumferential geometry forms a shoulder or step relative to the respective central cylindrical region.Stop against which the first shaft nut 162 presses the primary turbine wheel 150 and the second shaft nut 164 presses the secondary turbine wheel 152, wherein the respective shoulder serves to arrange the primary turbine wheel 150 and the secondary turbine wheel 152 at a small distance from the barrier arrangement 124 so that they are arranged to be freely rotatable relative to the barrier arrangement 124 and the ball bearings 154, 156.

[0099] The primary turbine wheel 150 and the secondary turbine wheel 152 are essentially identical in design and are arranged on the shaft 154 merely rotated by 180 degrees. Thus, features that are described below for one of the two turbine wheels 150, 152 for the sake of simplicity apply to the other one accordingly. The primary turbine wheel 150 is essentially flat on the side facing the barrier assembly 124 and only has the opening with the inner circumferential geometry to accommodate the shaft 120. The secondary turbine wheel 152 has, on the side facing away from the barrier assembly 124, a centrally arranged intake opening 166, which is surrounded by an annular side surface 168 and is designed to protrude relative to the latter.The secondary turbine wheel 152 is configured with a plurality of internal turbine blades 170, which are configured to generate an airflow upon movement of the secondary turbine wheel 152 or to cause movement of the secondary turbine wheel 152 based on an airflow. The turbine blades 170 are configured to cause an airflow from the intake opening 166 outward to radial openings 172 formed on the outer circumference of the secondary turbine wheel 152 upon rotation of the secondary turbine wheel 152 in a first direction of rotation about the axis A. This airflow corresponds to the secondary suction airflow. The first direction of rotation corresponds to the direction of rotation during operation of the adapter device 110. If the secondary turbine wheel 152 were to be rotated in a second direction of rotation opposite to the first, the air flow would be directed from the radial openings 172 through the secondary turbine wheel 152 to the intake opening 166.As described, the primary turbine wheel 150 is constructed analogously to the secondary turbine wheel 152, whereby, in particular, the shape of the turbine blades can also be modified or adapted. This is due to the fact that the primary turbine wheel 150 is primarily intended to be driven by a suction air flow, the so-called primary suction air flow, which is directed from the radial opening 172 of the primary turbine wheel 150 to an air outlet opening 174 designed analogously to the intake opening 166. While the secondary turbine wheel 152—as explained—is configured, based on its rotation in the first direction of rotation, to generate an air flow, the so-called secondary suction air flow, which is directed from the intake opening 166 to the radial openings 172.

[0100] The intake opening 166 is configured to receive the second shaft nut 164, so that the second shaft nut 164 contacts the secondary turbine wheel 152 on an inner surface and axially secures it on the shaft 154. Similarly, the air outlet opening 174 is configured to receive the first shaft nut 162, so that the first shaft nut 162 contacts the primary turbine wheel 150 on an inner surface and axially secures it on the shaft 154. The internal arrangement of the respective shaft nuts 162, 164 has the advantage of minimal interference with the airflow.

[0101] The barrier arrangement 124 is disc-shaped, essentially axially symmetrical with respect to axis A, and symmetrical with respect to a center plane of the barrier arrangement 124 arranged orthogonally to the axis A. Ribs 176 are formed on both sides in the direction of axis A and serve to stiffen the barrier arrangement 124. Apart from the opening 160, no passage is formed in the direction of axis A, so that no fluid can pass through the barrier arrangement 124. At least one sealing arrangement can be provided at the opening 160 relative to the ball bearings 156, 158 so that no fluid can pass between the ball bearings 156, 158 and the barrier arrangement 124. Analogously, sealing arrangements can be provided in the area between the ball bearings 156, 158 and the shaft 154. The ball bearings 156, 158 are also designed to be fluid-tight. An annular central web 180 is formed on the peripheral surface 178 of the barrier arrangement 124.On one side of the central web 180, in a direction along axis A toward the first turbine arrangement 112, a first radial connection surface 182 is formed, which is designed to contact the first housing section 126 and to fasten it to the barrier arrangement 124. On the other side of the central web 180, in an opposite direction along axis A, i.e., in the direction of the second turbine arrangement 118, a second radial connection surface 184 is formed, which is designed to contact the second housing section 128 and to fasten it to the barrier arrangement 124. For fastening, a plurality of respective fastening bolts 186 are provided on the connection surfaces 182, 184, which together with the housing sections 126, 128 form a respective bayonet lock. Instead of a bayonet lock, another fastening arrangement could also be provided, such as a threaded screw connection.Additionally or alternatively, clips can be provided that can be snapped together for fastening and released again. The bayonet lock offers the advantage of simple operation. Connecting prongs are provided on the first connection surface 182 for the bayonet lock. Respective sealing arrangements can be provided on the peripheral surface 178, for example, on the connection surfaces 182, 184, to provide a fluid-tight connection between the respective housing part 126, 128 and the barrier arrangement 124.

[0102] The first housing part 126 has an annular portion 188, which is hollow on the inside and is configured to encompass, in particular, the primary turbine wheel 150 and the barrier assembly 124, at least when attached to the first connection surface 182. The annular portion 188 has a plurality of air passage openings 190, which serve to provide air contact for the primary turbine wheel 150 with the environment. Thus, in an operating state, the primary suction air flow can flow through the air passage openings 190 to the primary turbine wheel 150. Furthermore, an inner circumferential surface 192 is formed on the annular portion 188, which is configured to contact the first connection surface 182.For this purpose, a counterpart to the bayonet closure is formed on the inner peripheral surface 192 in the form of a plurality of groove arrangements which are designed to receive a respective connecting prong of the barrier arrangement 124.

[0103] Furthermore, the primary connection interface 130 is formed on the first housing part 126 in the form of a tubular section that is designed to be coupled to a suction device, for example a hose or a nozzle of a dry vacuum cleaner. For this purpose, the hose or nozzle can engage around the tubular section or be inserted into it. The tubular section is hollow on the inside and extends into the annular section 188. Furthermore, a first connection tab 183 and a second connection tab 185 are formed on the first housing part 126. These are formed on opposite sides of the first housing part 126 in the radial direction with respect to the axis A. They serve to cooperate with a connection arrangement optionally formed on the suction device in order to firmly but detachably couple the suction device to the primary connection interface 130.Outwardly open air passages 195 are formed between the annular section 188 and the tubular section 130, wherein the first housing part 126 is configured to be coupled to an actuatable valve arrangement 194. In the present case, this is designed as a two-part, annular throttle valve, wherein the two parts of the throttle valve can be releasably clipped together, and the throttle valve can be rotated relative to the first housing part 126 and about the axis A. The throttle valve also has air passages which, depending on the rotational position, coincide with the air passages of the first housing part 126 or close them. In this way, the proportion of the primary intake air flow flowing through the primary turbine wheel 150 can be adjusted.

[0104] The second housing part 128 also has an annular section 196, which has air passages for allowing air conveyed by the secondary turbine wheel 152, the secondary suction air flow, to escape into the environment. The annular section 196 is constructed similarly to the annular section 188 of the first housing part 126, for example, with regard to the fastening arrangement, so that reference is made to the annular section 188 for further features such as the bayonet lock.

[0105] The second housing part 128 further has a secondary connection interface 136, which is designed as an annular extension. The secondary connection interface 136 has part of a bayonet lock, namely a plurality of groove arrangements. The secondary connection interface 136, in particular the annular extension, is designed to be coupled to a module such as a collecting container. For this purpose, a sealing arrangement can be provided between the secondary connection interface 136 and the module, thus providing a fluid-tight connection. Instead or additionally, the secondary connection interface 136 can also be formed on a tubular air inflow region 198 formed on the second housing part 128 and present in the present case. The annular extension is supported relative to the tubular air inflow region 198 by a plurality of ribs.

[0106] Figure 4 shows a schematic sectional view of the adapter device 110 according to the invention according to the further exemplary embodiment in an assembled or joined state. The first housing section 126 is fastened to the barrier arrangement 124 by means of the bayonet lock. For this purpose, the inner circumferential surface 192 contacts the first connection surface 182 and forms a substantially fluid-tight connection. The first housing section 126 encloses the primary turbine wheel 150, but is arranged at a radial distance from it. The air passage openings 190 provided on the annular section 188 allow the primary suction air flow to enter and flow through the adapter device 110 or the first turbine arrangement 116. The air passage opening 195 is closed by the valve arrangement 194, so that the primary suction air flow enters only through the air passage openings 190.This allows the primary suction air flow to act entirely on the first turbine assembly 112 and drive the primary turbine wheel 150. For simplicity, no suction device is coupled to the primary connection interface 130. However, the arrows indicate how the primary suction air flow and the generated secondary suction air flow flow.

[0107] The second housing section 128 is attached to the barrier assembly 124 by means of the associated bayonet lock. For this purpose, an inner circumferential surface of the annular section 196 contacts the second connection surface 184 of the barrier assembly 124. The second housing section 128 encloses the secondary turbine wheel 152, but is arranged at a radial distance from it. The air passage openings provided on the annular section 196, which are arranged offset and therefore not visible in the sectional view, allow the secondary suction air flow to enter the adapter device 110 or the second housing section 128 via the air inflow area 198 and to flow through the second turbine assembly 118. For reasons of simplicity, no module is arranged at the secondary connection interface 130. However, the arrows indicate how the secondary suction air flow flows.

[0108] The primary suction air flow thus flows through the first turbine assembly 116 and acts on the primary turbine wheel 150 by exerting a circumferentially directed driving force on individual turbine blades 173 of the primary turbine wheel 150. Thus, the first turbine assembly 116 is driven by the primary suction air flow. Since the primary turbine wheel 150, in the assembled state, is rotationally fixedly coupled to the transmission assembly 120 comprising the shaft 154, the rotational drive of the first turbine wheel 150 leads to a rotational drive of the shaft 154, and in turn to a rotational drive of the secondary turbine wheel 152, which is also rotationally fixedly coupled to the shaft 154 in the assembled state. The rotation of the secondary turbine wheel 152 acts on air present in the second turbine arrangement 118 and pushes it radially outward from the adapter device 110 through the air passage openings, and sucks in air via the air inflow area 198.This creates the secondary suction air flow, which can be used to vacuum the suction substrate.

[0109] It is evident that the two suction air streams represent two distinct and structurally separate suction air streams. In this context, the barrier arrangement 124, among other things, ensures that the suction air streams flow spatially separated from each other. During operation, the rotation of the primary turbine wheel 150 also ensures that any residues of the suction substrate, such as moisture or liquid, are transported outward and do not enter the primary suction air stream.

[0110] It can also be seen that in an operating state, the shaft 154 and the turbine wheels 150, 152 rotate about the common axis A.

[0111] To prevent air, dirt, moisture and / or liquid, in particular water, or the like from the outflowing secondary suction air stream from entering the inflowing primary suction air stream in the region of the annular sections 188, 196, various structural measures can be provided. For example, the air passage openings 190 and those of the second housing section 128 can be arranged offset from one another in the circumferential direction, an additional structural barrier can be provided between them, or the air passage openings 190 can be provided only on one side of the adapter device, while the air passage openings of the second housing section 128 can be arranged on an opposite side.

[0112] To facilitate the removal of fluid, a tertiary connection interface analogous to the first embodiment can be provided instead of the air passages of the second housing section 128. This can be designed, for example, as a connection for a hose.

[0113] For example, the area of ​​the primary connection interface 130, for example its outer surface, can be configured to be coupled to a handle assembly. Alternatively, the handle assembly can be formed thereon. The handle assembly, comprising, for example, a handle, can serve to actuate the adapter device 110 by an operator. Figure 5 shows a cleaning assembly 300 according to the invention, comprising the adapter device 110 from Figures 3 and 4 and a collecting container assembly 200, as well as a first handle assembly 202 and a second handle assembly 204.

[0114] The collection container arrangement 200 has a substantially tubular collection container 201 with a substantially constant inner diameter, although other geometries may also be provided. The collection container 201 is thus hollow and extends along a collection container axis S, which, in the coupled state shown, coincides with the axis A of the adapter device 110. Furthermore, it is designed as a rotational body. The ratio of the wall thickness of the collection container 201 to its radius is at least 1:10, preferably at least 1:20. The collection container arrangement 200 is coupled to the adapter device 110 by means of the secondary connection interface 136, in this case the bayonet lock.For this purpose, four bolts are formed on a first end 206 of the collecting container 201, which extend radially outward from a lateral surface 208 of the adapter device 110 and engage in openings of the bayonet lock of the adapter device 110. In other words, a part of the bayonet lock that is complementary to that on the adapter device 110 is formed on the collecting container 201. The collecting container arrangement 200 and the adapter device 110 can be uncoupled from one another by rotating them relative to one another in a first direction of rotation. Furthermore, the collecting container arrangement 200 and the adapter device 110 can be firmly coupled to one another by rotating them in a second direction of rotation opposite to the first direction of rotation.Instead of a bayonet lock, the secondary connection interface 136 may also have another type of coupling, for example a threaded screw connection or fastening by means of screws or the like.

[0115] The secondary connection interface 136 enables a rigid coupling of the adapter device 110 to the collecting container arrangement 200 that is impermeable to fluids in the environment. Thus, the movements of the adapter device 110 and the collecting container arrangement 200 are coupled to one another, and a movement or inclination of the collecting container arrangement 200 also leads to a corresponding movement or inclination of the adapter device 110, and vice versa. The lateral surface 208 further comprises a plurality of annular notches 209. The notches 209 are formed as reductions in the outer diameter of the collecting container 201. The notches 209 extend in the direction of the collecting container axis S with a predetermined width, wherein a ratio of the width to a distance from an adjacent notch 209 is at least 1:3, preferably at least 1:4. The first handle arrangement 202 and the second handle arrangement 204 are further formed on the lateral surface 208.The first handle assembly 202 has two coupling rings 210 and a two-part handle part 212. The coupling rings 210 completely surround the outer surface 208 or engage in a respective one of the notches 209. The two-part handle part 212 is configured similarly to a parallelogram and has a gripping area 214 designed to be gripped by an operator. The gripping area 214 represents an upper leg of the parallelogram, which is aligned substantially parallel to the collecting container axis S.

[0116] The second handle assembly 204 also has a coupling ring 216 that completely encompasses the lateral surface 208. Furthermore, the second handle assembly 204 has an L-shaped retaining bracket 218 with a gripping region 220 whose longitudinal axis is oriented substantially transversely to the collecting container axis S. The retaining bracket 218 is coupled to the coupling ring 216 by means of a lockable pivot joint 222. The pivot joint 222 can be opened by slightly loosening a screw in order to pivot the retaining bracket 218 about a pivot axis A1 relative to the coupling ring 216, which pivot axis is oriented perpendicular to the collecting container axis S.

[0117] The coupling rings 210 can be arranged at each of the notches 209 as needed. Instead of the notches 209, the outer surface 208 can also be formed with a constant outer diameter, in which case the coupling rings 210 can then preferably be fastened to the outer surface 208 by means of a clamping action. This further increases the variability for an operator, as they are then not limited to coupling in the notches 209, which are arranged at equal distances from one another.

[0118] The collection container arrangement 200 further comprises a tool connection module 224 with a tool connection interface 226. The tool connection interface 226 is designed to be coupled to a cleaning tool. The tool connection interface 226 comprises a pipe section 228 arranged concentrically to the collection container axis S, as well as two connection tabs 229 arranged on either side of the pipe section 228. The tool connection module 224 further has a connection flange 230, which is annular and engages around a second end 232 of the collection container 201, which is formed on the other side of the first end 206 on the collection container 201. Furthermore, the connection flange 230 has a bayonet closure ora bayonet locking part which is configured to cooperate with an associated bayonet locking part formed on the collection container assembly 200 in order to couple the tool connection module 224 to the collection container assembly 200.

[0119] The collection container assembly 200 is transparent. This allows an operator to see the interior of the collection container assembly 200, as well as any absorbent substrate collected therein. Alternatively, a viewing window can be provided so that only a portion of the collection container assembly 200 is transparent. The collection container assembly 200 or the viewing window can, for example, comprise transparent material, in particular a transparent polymer such as acrylic glass, polycarbonate, or polystyrene. In addition to or as an alternative to the transparent design, opaque material, in particular an opaque polymer, can also be provided.

[0120] A riser pipe 234 is arranged within the collection container arrangement 200. Due to the simplified illustration, this riser pipe cannot be seen in more detail, but will be described in more detail below. The riser pipe 234 extends along the collection container axis S, starting from the second end 232 in the direction of the first end 206. Along the collection container axis S, however, the riser pipe 234 is arranged at a distance from the first end 206. In other words, the length of the riser pipe 234 is approximately 60 to 90 percent, preferably 85 percent, of the length of the collection container arrangement 200. The riser pipe 234 is detachably coupled to the tool connection module 224. For this purpose, an external thread is formed on the riser pipe 234, which is screwed into an internal thread formed on the tool connection module 224.

[0121] The riser tube 234 serves to guide or suck the secondary suction air stream together with the suction substrate into the collection container 201. Since the riser tube 234 is open at an end facing the first end 206, the secondary suction air stream can escape with the suction substrate into the collection container 201. This configuration of the riser tube 234 also helps to separate the suction substrate from the secondary suction air stream and enrich it in the collection container 201. Gravity pulls the suction substrate toward the second end 232 of the collection container 201, so that it accumulates there, while the light suction air stream can flow to the first end 206 and thus into the adapter device 110.

[0122] To remove the suction substrate from the collection container 201 or to empty it, the adapter device 110 can be decoupled from the collection container assembly 200. For this purpose, the bayonet lock (secondary connection interface) can be opened. Alternatively, the tool connection module 224 could also be decoupled from the collection container 201. Furthermore, the collection container 201 can include an emptying opening that can be opened or closed as needed.

[0123] Figure 6 shows an exploded view of the collection container assembly 200. A sealing assembly 236 is arranged at the first end 206 of the collection container 201. This sealing assembly is designed to fluid-tightly couple the collection container 201 to the adapter device 110. In this case, the sealing assembly 236 is designed as an O-ring.

[0124] The collection container arrangement 200 further comprises a splash guard arrangement 238, which is arranged at the end of the riser tube 234 oriented toward the first end 206 and can be coupled to the riser tube 234. The splash guard arrangement 238 is configured to form a barrier for suction substrate sucked into the riser tube 234 by the secondary suction air flow, so that the suction substrate exits the riser tube 234 in a radial direction rather than toward the first end 206 and along the collection container axis S. This facilitates the separation of the suction substrate from the secondary suction air flow and its accumulation in the collection container 201. In other words, the suction substrate is prevented from exiting the riser tube 234 in the direction of the adapter device 110. The splash guard arrangement 238 has a tubular portion 240 and a disk-shaped portion 242.The tubular section 240 is designed to be coupled to the riser pipe 234 by being pushed out onto the riser pipe 234. Other types of coupling are also conceivable, for example, a coupling by means of intermeshing threads. The disc-shaped section 242 is closed in the direction of the collecting container axis S and prevents the passage of suction substrate. The tubular section 240 comprises radially arranged passage openings 244, which allow the suction substrate or the secondary suction air flow to pass through or through.

[0125] Allow radial exit from the riser pipe 234.

[0126] Instead of a riser pipe 234, an elastic suction hose can also be provided. Furthermore, the suction hose can be routed externally on the collection container assembly 200 and enter the collection container 201 below the first end 206, possibly via a connection. This also makes it possible to introduce the secondary suction air stream into the collection container 201 below the first end 206, preferably at a distance from it.

[0127] A sealing arrangement 246 in the form of an O-ring is arranged between the riser pipe 234 and the tool connection module 224.

[0128] Electrical contacts 248 are formed on the two connection tabs 229 of the tool connection module 224, forming an electrical contact arrangement 249. These serve to establish electrical contact with a cleaning tool when the cleaning tool is coupled to the tool connection module 224. In the present case, electrical lines 250 are also formed on the collection container 201. These can be arranged as insulated conductors inside or outside the collection container 201. Alternatively, the electrical lines 250 can be embedded, at least in sections, in the material of the collection container 201. Furthermore, electrical contacts (not shown here) can be formed on the second end 232, which are designed to establish electrical contact between the electrical lines 250 and the tool connection module 224 and its electrical contacts 248.Electrical contacts (not shown here) may also be formed at the first end 206, which are configured to establish electrical contact between the adapter device 110 and the electrical lines 250. In the present case, a respective electrical line 250 is directly connected to a respective electrical contact 248.

[0129] Figure 7 shows a partially exploded view of the cleaning assembly 300. The collection container assembly 200 is shown in the assembled state. The tool connection module 224 is firmly coupled to the collection container 201 by means of the bayonet lock. Furthermore, the riser tube 234 with the splash guard assembly 238 is arranged within the collection container 201 and firmly coupled to the tool connection module 224. No cleaning tool is coupled to the tool connection module 224. The two handle parts 212, 214 are decoupled from the collection container 201, but can be coupled to the respective notches 209 in the outer surface 208 of the collection container 201.

[0130] In the partially exploded view according to Figure 7, the collecting container arrangement 200 is decoupled from the adapter device 110 and shown spaced apart from one another along the axis A and the collecting container axis S. Furthermore, an intake protection device 252 is arranged between the adapter device 110 and the collecting container arrangement 200. The intake protection device 252 is designed to be coupled to the adapter device 110. More specifically, the intake protection device 252 can be coupled to the tubular air inflow region 198. For this purpose, corresponding bayonet closure parts are formed, although alternatively, a connection by means of a threaded screw connection or the like can also be provided. Alternatively, the intake protection device 252 can be formed integrally with the adapter device 110.In the coupled state and during operation of the adapter device 110 according to the invention, the secondary suction air flow is sucked in from the second turbine arrangement 118 via the tubular air inflow region 198 and thus via the intake protection device 252 from the collecting container arrangement 200. The intake protection device 252, not shown in detail, comprises an internal air guide arrangement for supplying the air from the collecting container arrangement 200 to the adapter device 110. The external shape of the intake protection device 252 is designed such that, in the coupled state, it forms a substantially fluid-tight seal with the tubular air inflow region 198, in particular a radially inner surface of the air inflow region 198, so that the secondary suction air flow can only flow via the internal air guide arrangement of the intake protection device 252.When coupled to the adapter device 110, the suction protection device 252 extends along the axis A. If the adapter device 110 is further coupled to the collection container arrangement 200, the suction protection device 252 further extends along the collection container axis S. In addition, the suction protection device 252 is arranged at a distance from the inner surface of the collection container 201.

[0131] The suction protection device 252 (not shown in detail) comprises a closing body which, in its closed position, closes the air guide arrangement such that at least no liquid, preferably neither liquid nor air, can pass from the collection container arrangement 200 to the adapter device 110, and which, in its open position, releases the air guide arrangement for the intake of air from the collection container arrangement 200. Furthermore, the suction protection device 252 comprises a force actuator for generating an actuating force by means of which the closing body can be urged into the closed position and / or the open position. Advantageously, the suction protection device 252 is controllable so that the open position and the closed position can be assumed depending on a control signal. The open position is assumed in particular when regular suction operation is to take place using the adapter device 110.The closed position is intended to be assumed in particular when the level of the suction substrate in the collection container 201 exceeds a predetermined level and / or the suction operation of the adapter device 110 is terminated, so that the suction substrate cannot pass from the collection container arrangement 200 into the adapter device 110, even during pivoting, inclination, transport, storage, or the like. The actuating force of the force actuator preferably comprises a magnetic force.

[0132] The suction protection device 252 is an optional component of the cleaning arrangement 300. Thus, the cleaning arrangement 300 can also be provided without the suction protection device 252.

[0133] Figure 8 relates to a representation of the cleaning arrangement 300 from Figure 5 in a state coupled to an exemplary suction device 254. The suction device 254 is a conventional dry vacuum cleaner operated with household electricity, although essentially any other type of suction device can also be provided. The suction device 254 comprises a main body 256, which can be displaced relative to a floor surface by means of a rolling action by means of two wheels 258 arranged at its rear, lower end and a front wheel (not shown). All wheels 258 protrude at least partially from an underside of the main assembly 256 and space the main body 256 from the floor surface. The main body 256 comprises a carrying handle 260, which is arranged at its rear, upper end and is curved.

[0134] An elastic suction hose 262 is coupled to the main body 256. The suction hose 262 comprises a handle portion 264, which can be grasped by an operator, and which has a suction nozzle 266. The handle portion 264 and the suction nozzle 266 are essentially rigid. The suction nozzle 266 is coupled to the primary connection interface 130 of the adapter device 110 by means of a clamping action. For this purpose, the suction nozzle 266 is tubular, wherein the outer diameter of the suction nozzle 266 essentially corresponds to the inner diameter of the tubular portion of the primary connection interface 130 or is minimally smaller than this in order to be at least partially inserted into the tubular portion of the primary connection interface 130.

[0135] The suction device 254 is configured to generate a negative pressure during operation. For this purpose, the suction device 254 has a turbine assembly (not shown in detail) configured to generate the negative pressure at the suction hose 262 and expel the extracted air into the environment of the main body 256. This negative pressure generated at the suction hose 262 causes the primary suction air flow, which ultimately flows from the environment of the adapter device 110 through the air passage openings 190 into the first turbine assembly 116 to drive the primary turbine wheel 150. The suction air flow then flows further via the primary connection interface 130 and leaves the adapter device 110, entering the main body 256 of the suction device 254 through the suction nozzle 266, the handle part 264 and the suction hose 262, and then from there to the turbine assembly and into the environment of the suction device 254.

[0136] The cleaning arrangement 300 is thus drivable by means of the suction device 254. During operation of the cleaning arrangement 300, the main body 256 can stand on the floor surface. An operator can move the cleaning arrangement 300 freely and use it according to the cleaning requirements. Advantageously, the cleaning arrangement 300 according to the invention makes it possible to use the suction device 254, designed as a dry vacuum cleaner, to drive the cleaning arrangement 300, while ensuring that no suction substrate, in particular no liquid or moist air, can escape from the cleaning arrangement 300, in particular the secondary suction air stream, and enter the primary suction air stream and thus into the suction device 254. For the sake of simplicity, the notches 209 are not shown again.

[0137] Figure 9 relates to an exemplary partial representation of the adapter device 110 with various suction devices or handle parts that can be coupled to the primary connection interface 130, which are shown spaced apart from and decoupled from the primary connection interface 130 according to an exploded view. Firstly, the suction hose 262 known from Figure 8 is shown with the handle part 264 and the suction nozzle 266. In addition, an alternative suction device 268 in the form of a handheld vacuum cleaner is shown, as well as a third handle arrangement 269 and a fourth handle arrangement 271.

[0138] The suction device 268 comprises a substantially cylindrical main body 270, on which a handle assembly 272 is formed at the rear end thereof and can be grasped by an operator. The handle assembly 272 comprises an upper handle part 274 that adjoins the main body 270 and extends away from it. The upper handle part 274 is cuboid-shaped in the present case, although it can also be round or shaped in another way. The upper handle part 274 is preferably ergonomically adapted so that an operator can grip it comfortably. Extending below the upper handle part 274 is a lower, curved handle part 276. The lower handle part 276 is formed integrally with a rear end of the upper handle part 274 at one end and integrally with the main body 270 at the other end.The lower handle part 276 is essentially L-shaped and essentially cuboid-shaped, although it may also be round or shaped in another way.

[0139] Preferably, the lower handle part 276 is ergonomically designed so that an operator can grip it comfortably.

[0140] The front end of the cylindrical main body 270 is designed to be coupled to the primary connection interface 130 of the adapter device 110. For this purpose, a tubular section (not shown in detail) is formed on the inside of the main body 270, which is designed to be coupled to the tubular section of the primary connection interface 130 in a similar way to the suction nozzle 266 of the suction device 254. In addition, however, the main body 270 has an actuatable connection arrangement 275 that has actuatable rocker arms 276, 278 and is designed to interact with the connection tabs 183, 185 of the first housing part 126 of the adapter device 110. In the coupled state, the rocker arms 276, 278 engage with one end behind the respective connection tab 183, 185 and thus prevent the suction device 368 from being decoupled from the adapter device 110.However, an operator can actuate a second end of the rocker arms 276, 278 so that the respective rocker arm 276, 278 no longer engages behind the respective connection tab 183, 185, thus releasing the suction device 268 to be decoupled from the adapter device 110. The functionality of such rocker arms will be described further below, and the rocker arm can be configured in one of the ways described below. The main body 270 further includes laterally formed air passage openings 280 configured to discharge the primary suction air flow generated by the primary connection interface 130 and by a suction turbine arranged within the suction device 268 into the environment.

[0141] The suction device 268 is designed to be detachably coupled to a rechargeable battery, wherein the rechargeable battery provides electrical energy to drive the suction turbine. For this purpose, a receptacle can be provided on the suction device 268 to couple the rechargeable battery to the suction device 268. A switch 282 is arranged on a top side of the suction device 268 to switch the suction turbine on or off depending on the position of the switch 282.

[0142] The suction device 268 is shown as an example and is intended to illustrate that the adapter device 110 or the cleaning arrangement 300 can also be coupled and operated by means of a battery-operated, compact suction device.

[0143] The third handle assembly 269 and the fourth handle assembly 271 are also designed to be coupled to the primary connection interface 130. For this purpose, they each have a coupling ring 284, which is designed to be coupled to the outer circumferential surface of the tubular section of the primary connection interface 130. Furthermore, the handle assembly in 269, 271 can be gripped by an operator. For this purpose, the third handle assembly 269 has a gripping body 286, which comprises gripping parts shaped similar to a parallelogram. The coupling ring 284 is formed integrally with the gripping body 286 with its circumferential surface. Furthermore, the third handle assembly 269 includes a rocker lever 288, which is designed to interact with the first connection tab 183 or the second connection tab 185 of the first housing part 126 of the adapter device 110.The rocker arm 288 makes it possible, on the one hand, to firmly but releasably couple the third handle assembly 269 to the adapter device 110. At the same time, in the coupled state, rotation of the third handle assembly 269 about the axis A is prevented, since the rocker arm 288 engages behind one of the connecting tabs 183, 185 in such a way that rotation is blocked.

[0144] When reference is made to a rocker arm, this may refer to a so-called connecting mechanism which is designed to couple and / or decouple the handle assembly with the adapter device and / or the collecting container assembly when actuated.

[0145] The fourth handle assembly 271 has a gripping body 290 arranged below the coupling ring 284, which is configured similarly to a pistol grip and is designed to be at least partially grasped by an operator's hand. The fourth handle assembly 271 also has a rocker arm 292, whose functionality is similar to that of the previously mentioned rocker arms. The coupling ring 284 is formed integrally with the gripping body 290.

[0146] Figure 10a shows an exploded view of the third handle assembly 269. The third handle assembly 269 includes a first housing part 294 and a second housing part 296. The first housing part 294 includes one half of the gripping body 286 and one half of the coupling ring 284. The second housing part 296 includes the other half of the gripping body 286 and the other half of the coupling ring 284. The second housing part 296 includes four openings 298 on its inside, into which respective threaded inserts 302 can be inserted. In the inserted state, the threaded inserts 302 are firmly coupled to the second housing part 296. The first housing part 294 comprises four through openings 304 which are adapted to receive respective screws 306 which can be screwed to a respective threaded insert 302 in order to firmly couple the first housing part 294 to the second housing part 296.

[0147] At least the second housing part 296 has a locating pin 308 designed to receive and pivotally mount the rocker arm 288. For this purpose, the rocker arm 288 has a through-opening 310 in its central region, which is designed to receive the locating pin 308. Furthermore, the rocker arm 288 has a first leg 312 and a second leg 314. The two legs 312, 314 are designed to contact the second housing part 296, at least in sections, when attached to the latter. The two legs 312, 314 are slightly curved. This allows an operator to actuate an end of the first leg 312 protruding from the second housing part 296 when attached thereto, so that at least the second leg 314 is elastically deformed and tensioned.This results in a tab 311 formed between the two legs 312, 314 and in the region of the through-opening 310 being displaced about a longitudinal axis K of the locating pin 308. The tab 311 then no longer engages behind the first connection tab 183 or the second connection tab 185 of the first housing part 126 of the adapter device 110 if the third handle arrangement 269 was coupled to the adapter device 110, so that the third handle arrangement 269 can be decoupled from the adapter device 110. This mechanism enables the third handle arrangement 296 to be firmly but releasably coupled to the primary connection interface 130 or the first housing part 126 of the adapter device 110.

[0148] To assemble the third handle assembly 296, the threaded inserts 302 and the rocker arm 288 are first inserted into the second housing part 296. The first housing part 294 is then assembled with the second housing part 296 so that the axes of the through-holes 304 are aligned with the axes of the openings 298. The screws 306 are then inserted through the through-holes 304 and screwed into the threaded inserts 302.

[0149] Figure 10b relates to an exploded view of the fourth handle assembly 271. The fourth handle assembly 271 comprises a first housing part 316 and a second housing part 318. The first housing part 316 comprises one half of the gripping body 290 and one half of the coupling ring 284. The second housing part 318 comprises the other half of the gripping body 290 and the other half of the coupling ring 284. On an inner side of the second housing part 318, three receiving openings 320 are formed, which are configured to receive respective threaded inserts 322 as described above. The first housing part 316 has three through-openings 324, which are configured to receive respective screws 326 therein.

[0150] The two housing parts 316, 318 have respective receiving openings 328, which are designed to receive a respective end of a guide pin 330 formed on the rocker arm 292. In the present case, only the receiving opening 328 of the second housing part 318 is visible. The two housing parts 316, 318 have respective openings 332. If the rocker arm 292 is inserted into the receiving openings 328, it is pivotably mounted about an axis K of the guide pin 330. Furthermore, one end of a first leg 334 then protrudes through the opening 332 and can be actuated by an operator. A tab 338 is formed at the end of a second leg 336 of the rocker arm 292. As described above, the tab 338 is configured to engage behind one of the connecting tabs 183, 185 and thus to firmly but releasably couple the fourth handle assembly 271 to the adapter device 110.Furthermore, a nose 340 is formed on the first leg 334, which is designed to support a spring member 342 such that, when the fourth handle assembly 271 is mounted on the first leg 334, the spring member 342 is urged in a first direction of rotation about the axis K. If the fourth handle assembly 271 is attached to the adapter device 110, the tab 338 is then urged behind one of the connecting tabs 183, 185. To release the connection of the tab 338 to the respective connecting tab 183, 185, an operator grasps the end of the first leg 334 protruding from the two housing parts 316, 318 and urges it about the axis K in a second direction of rotation, which is opposite to the first direction of rotation. In doing so, the operator must counteract the actuating force of the spring member 342.

[0151] To assemble the fourth handle assembly 271, the threaded inserts 322 are first inserted into the receiving openings 320 of the second housing part 318. Furthermore, the spring member 342 is inserted into a receiving opening 344 formed on at least one of the housing parts 316, 318, with the spring member 342 engaging the lug 340 and being inserted into the second housing part 318 together with the rocker arm 292. Subsequently, the first housing part 316 is assembled with the second housing part 318 such that the axes of the through-openings 324 are aligned with the axes of the openings 328. Subsequently, the screws 326 are guided through the through-openings 324 and screwed into the threaded inserts 322.

[0152] Figure 11 relates to a representation of the cleaning assembly 300 with exemplary cleaning tools 346, 348, 350, each configured to be attached to the tool connection interface 226. The cleaning assembly 300 is shown in an assembled state and without a suction device coupled thereto.

[0153] The first cleaning tool 346 comprises a floor unit 352, wherein a first brush 354, which is configured to rotate about a first brush axis B1, and a second brush 356, which is configured to rotate about a second brush axis B2, are arranged on the floor unit 352. The two brush axes B1, B2 are arranged at a distance from one another. The brushes 354, 356 are configured to contact a floor surface to be cleaned during operation. The floor unit 352 further comprises an arcuate suction bar arrangement 356, wherein a suction lip 359 is arranged on the suction bar arrangement 356, which is configured to contact the floor surface and to draw suction substrate of the floor surface, in particular liquid, from it and bring it together. The first cleaning tool 346 further has a connection module 358, which is configured to be coupled to the tool connection module 224.For this purpose, the connection module 358 has a tubular section 360 which is configured to be coupled to the pipe section 228. More specifically, the tubular section.

[0154] 360 is pushed onto the tubular section 228. The tubular section 360 further has a second end to which a suction hose 362 is coupled. The suction hose 362 connects the tubular section 360 to the suction bar assembly 356, so that during operation, the secondary suction air flow, originating from the suction bar assembly 356, can flow via the suction hose 362, through the tubular section into the tubular section 228 of the tool connection interface 226 to suck in the suction substrate. For this purpose, a suction opening is preferably formed on the suction bar assembly 356 near the bottom surface, through which the secondary suction air flow can flow with the suction substrate into the suction hose 362.

[0155] The connection module 358 is coupled to the base unit 352 via a joint assembly 364. The joint assembly 364 has a first pivot axis SA1 and a second pivot axis SA2, which are aligned perpendicularly to each other and arranged at a distance from each other. The joint assembly 364 allows the connection module 358 and, for example, the container assembly 200 coupled thereto to be pivotably arranged relative to the base unit 352. This enables easy handling of the cleaning assembly 300.

[0156] The second cleaning tool 348 also has the connection module 358 as described above, wherein, instead of the suction hose, a pull-off head 366 is provided on the tubular section 360, which is formed integrally with the tubular section 360 or the connection module 358. The pull-off head 366 is shaped similarly to a substantially equilateral triangle of small thickness, with a lower leg of this triangle forming a suction lip 368 with a suction opening 370. The pull-off head 366 is hollow on the inside or is formed with at least one large or several small air flow channels that open into the suction opening 370, so that the secondary suction air flow can flow from the suction lip 368 into the suction opening and through the pull-off head 366 to the tubular section 360. The suction lip 368 can be formed from a rubber-like material.The suction lip 368 is configured to at least partially contact the floor surface during operation in order to feed the suction substrate to the suction opening 370.

[0157] The third cleaning tool 350 has a floor unit 372 in which a first cleaning roller 374 and a second cleaning roller 376 are arranged. The first cleaning roller 374 has a first roller axis W1 about which it can be driven in rotation. The second cleaning roller 376 has a second roller axis W2 about which it can be driven in rotation. The two roller axes W1, W2 are arranged parallel and spaced from one another. When the third cleaning tool 350 rests on the floor surface, the roller axes W1, W2 are aligned substantially parallel to the floor surface. The cleaning rollers 374, 376 can comprise brushes and / or slats. The cleaning rollers 374, 376 contact the floor surface during operation. The third cleaning tool 350 also includes the connection module 358 as described above. The connection module 358 has the tubular section which is designed to be coupled to the pipe section 228.More precisely, the tubular section 360 is pushed onto the pipe piece 228. The connecting module 358 is further coupled to the base unit 372 by means of a pivot joint 378. The pivot joint 378 has a pivot axis SA3, which is arranged parallel to and spaced from the roller axes W1, W2. The pivot joint 378 enables the connecting module 358 to be pivoted relative to the base unit 372 about the pivot axis SA3. A housing 380 is formed on the connecting module 358 and surrounds the tubular section 360. The tubular section 360 is coupled to a suction hose 382, ​​which in turn couples the connecting module 358 to the base unit 372 next to the pivot joint 378. The suction hose 382 is configured to discharge the secondary suction air flow from the base unit 372 and supply it to the tubular section 360.A motor drive is formed in the base unit 372, which is configured to drive the two cleaning rollers 374, 376 in rotation about the roller axes W1, W2. For this purpose, the motor drive is coupled to the cleaning rollers 374, 376 via a belt arrangement, which in this case is formed outside a housing of the base unit 350. Of course, the belt arrangement can also be formed inside the housing. Furthermore, other mechanical couplings can be provided instead of the belt arrangement.

[0158] Figures 12a and 12b relate to a detailed representation of the connection module 358 of the first cleaning tool 346 and serve, among other things, to explain the mechanism with which the connection module 358 can be coupled to the tool connection interface 226. As already explained, the connection module 358 has the tubular section 360. Furthermore, the connection module 358 has a first receiving opening 384 and a second receiving opening 386. The two receiving openings 384, 386 are formed on opposite sides of the tubular section 360 and form a cuboid-shaped recess in the connection module 358. The connection module 358 further has a locking bracket 388, which is formed as a separate component from the connection module 358, but is coupled to it. The locking bracket 388 has a respective hook 390 at its respective ends, which protrude into the receiving openings 384, 386 without actuation of the locking bracket 388.Without actuation means that the locking bracket is pretensioned in a first direction R1 due to a spring arrangement / spring element not shown in detail, and the hooks 390 therefore protrude into the receiving openings 384, 386, but can be displaced relative to the rest of the connection module 358 counter to the direction R1 and counter to a spring force of the spring arrangement. To do this, an operator presses on the locking bracket 388 counter to the direction R1 and displaces the locking bracket 388 in the opposite direction to R1. This displacement causes the hooks 390 to emerge from the receiving openings 384, 386 counter to the direction R1 and release them. The two receiving openings 384, 386 are configured to receive a respective connecting tab 229 formed on the tool connection interface 226, wherein in the coupled state the hooks 390 engage through a respective through-opening 410 of the respective connecting tab 229.The hooks 390 thus provide a locking effect that prevents the connection module 358 from being decoupled from the tool connection interface 226 without actuating the locking bracket 388.

[0159] The connection module 358 has an upper housing part 392 and a lower housing part 394, wherein through openings 396 formed on the lower housing part 394 receive screws (not shown) that are designed to be screwed into screw-in areas 398 formed on the upper housing part 392 in order to firmly couple the upper housing part 392 and the lower housing part 394. When the upper housing part 392 is coupled to the lower housing part 394, the locking bracket 388 is clamped between these two against the spring force of the spring member. Thus, the locking bracket 388 cannot be removed from the remaining connection module 358 without separating the housing parts 392, 394 from one another. The tubular portion 360 has a guide projection 400 extending along a longitudinal axis LA1 of the tubular portion 360 on an inner surface thereof.The guide projection 400 is designed to engage in a guide groove formed on the outside of the pipe section 228.

[0160] The first receiving opening 384 has a first electrical contact plate 402, and the second receiving opening 386 has a second electrical contact plate 404. The contact plates 402, 404 are provided, when coupled to the tool connection interface 226, to contact a respective one of the electrical contacts 248 in order to establish electrical contact therewith. The electrical contact plates 402 are coupled to a respective electrical line 406. The electrical lines 406 are in turn coupled, for example, to at least one motor drive in order to supply them with electrical current. The motor drives can be provided to rotate the cleaning rollers 374 or the brushes.

[0161] In the connection module 358 of the second cleaning tool 348, the electrical contact plates 402, 404 can be dispensed with, since in the present case the second cleaning tool 348 does not have a drivable tool.

[0162] The connection module 358 of the third cleaning tool 350 is essentially configured similarly to the first cleaning tool 346 on the side facing the tool connection interface 226, but additionally has the aforementioned housing 380. The housing 380 can form the locking bracket 388. Alternatively, the connection module 358 of the third cleaning tool 350 can only have the tubular section 360 and the housing 380 on the side facing the tool connection interface 226, wherein the tubular section 360, when pushed onto the tubular section 228, achieves a clamping effect with the latter.

[0163] Figure 13 relates to a detailed view of the tool connection module 224 according to one exemplary embodiment. The tool connection module 224 is coupled to the collecting container 201 and firmly connected thereto. The previously described guide groove 408 is formed on the pipe section 228 and extends along the axis A on an outer surface of the pipe section 228. The guide groove 228 is designed to receive the guide projection 400. Furthermore, the two connection tabs 229 are formed on the tool connection module 224 and protrude from a rear side of the tool connection module 224 in the direction of the axis A. The tool connection modules 224 are plate-shaped and each have a through-opening 410. The through-openings 410 serve to receive the hooks 390 as described above.

[0164] The electrical contacts 248 are also formed at the through-openings 410. The electrical contacts 248 are also formed at least partially on an underside of the connection tabs 229. Furthermore, the electrical contacts 248 have a respective receiving extension 412, onto which a respective plug arrangement 414, here in the form of a flat receptacle, is pushed. The respective plug arrangement 414 is electrically conductively connected to a respective one of the electrical lines 250. Each of the electrical lines 250 is fastened in the region of the respective receiving extension 412 by a respective line holder 416 on the rear of the tool connection module 224. For this purpose, the line holders 416 have respective clamping jaws that clamp the respective line 250. The electrical lines 250 are preferably intended to provide a voltage of 12V, 24V, or 48V.

[0165] The electrical leads 250 and the associated structural features are optional. On the other hand, additional electrical leads may be provided to establish electrical contact with a cleaning tool or to supply it with electrical power.

[0166] A power supply interface for establishing electrical contact with a power source can be formed on the collection container assembly 200 or on the adapter device 110. The power supply interface is then preferably coupled to the electrical lines 250. The power supply interface can comprise a holder for receiving a power supply. The holder can be configured to accommodate a rechargeable battery.

[0167] Features explained in connection with a specific embodiment can also be provided in isolation in the cleaning arrangement, in particular the adapter device. The same applies to features explained in connection with the cleaning arrangement. These can also be provided in the adapter device, and vice versa.

Claims

Patent claims 1. A cleaning arrangement (300) for vacuuming a suction substrate by means of a suction device (254; 268), comprising: an adapter device (10; 110) comprising a first turbine arrangement (12; 112) drivable by a primary suction air flow of the suction device (254; 268); a second turbine arrangement (18; 118) drivable to generate a secondary suction air flow for vacuuming the suction substrate; and a transmission arrangement (20; 120) coupled to the first turbine arrangement (12; 112) and the second turbine arrangement (18; 118), wherein driving of the first turbine arrangement (12; 112) by the primary suction air flow via the transmission arrangement (20; 120) is usable for driving the second turbine arrangement (18; 118) to generate the secondary suction air flow;and at least one collecting container arrangement (41) which is adapted to separate and receive the suction substrate sucked in by the secondary suction air stream from the secondary suction air stream; 2. Cleaning arrangement (300) according to claim 1, wherein the collecting container arrangement (41) is designed to be fixedly coupled or coupleable to the adapter device (10; 110).

3. Cleaning arrangement (300) according to claim 1 or 2, wherein the collecting container arrangement (41) is substantially tubular.

4. Cleaning arrangement (300) according to one of the preceding claims, wherein the collecting container arrangement (41) comprises at least partially transparent material.

5. Cleaning arrangement (300) according to one of the preceding claims, wherein the collecting container arrangement (41) comprises at least one viewing window.

6. Cleaning arrangement (300) according to one of the preceding claims, wherein the collecting container arrangement (41) and / or the adapter device (10; 110) is designed as a supporting structure.

7. Cleaning arrangement (300) according to one of the preceding claims, wherein the collecting container arrangement (41) and / or the adapter device (10; 110) is designed to be positionally variable, in particular tiltable.

8. Cleaning arrangement (300) according to one of the preceding claims, further comprising at least one handle arrangement (202; 204; 269; 271) which is configured for gripping by an operator and is fixedly coupled or can be coupled to the adapter device (10; 110) and / or the collecting container arrangement (41).

9. Cleaning arrangement (300) according to claim 8, wherein the handle arrangement (202; 204; 269; 271) for coupling has an actuatable connection mechanism which is adapted, when actuated, to couple and / or uncouple the handle arrangement (202; 204; 269; 271) to the adapter device (10; 110) and / or the collecting container arrangement (41).

10. Cleaning arrangement (300) according to one of the preceding claims, further comprising a tool connection interface (226) for coupling to a cleaning tool (346; 348; 350), wherein the secondary suction air flow can be discharged from the cleaning tool (346; 348; 350) by means of the tool connection interface (226). 1 1. Cleaning arrangement (300) according to claim 10, wherein the tool connection interface (226) comprises an electrical contact arrangement (249) configured to make electrical contact with the cleaning tool (346; 348; 350).

12. Cleaning arrangement (300) according to one of claims 10 or 11, wherein the tool connection interface (226) is configured to substantially rigidly couple the cleaning tool (346; 348; 350).

13. Cleaning arrangement (300) according to one of the preceding claims, further comprising at least one power supply interface for establishing electrical contact with a power source, in particular a rechargeable battery.

14. Cleaning arrangement (300) according to one of the preceding claims, further comprising a primary connection interface (130) for coupling to the suction device (254; 268), wherein via the primary connection interface (130) the primary suction air flow can be discharged from the adapter device (10; 110) to drive the first turbine arrangement (12; 112).

15. Cleaning arrangement (300) according to claim 14, wherein the primary connection interface (130) is adapted to connect the suction device (254; 268) to the adapter device (10; 110) in a substantially rigid manner.

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