Cleaning assembly for sucking suction medium by means of suction device

Abstract

The invention relates to a suction device (254; the invention relates to a cleaning assembly (300) for sucking a suction medium from a suction device (268), the cleaning assembly comprising:-an adapter device (10; 110), comprising a first turbine assembly (12; 112), which can be driven by suction means (254; 268) of the primary suction air flow; the second turbine assembly (18; 118) which can be driven to generate a secondary suction air flow for sucking the suction medium; and a transfer assembly (20; 120), which is coupled to the first turbine assembly (12; 112) and a second turbine assembly (18; 118), wherein the first turbine assembly (12; 118) is coupled by a primary suction air flow; 112) via a transmission assembly (20; 120) can be used to couple the second turbine assembly (18; 118) to generate a secondary suction air flow; and-at least one collection container assembly (41) configured to separate and collect said suction medium sucked by said secondary suction air flow from said secondary suction air flow.

Description

Technical Field

[0001] The present invention relates to a cleaning assembly for sucking a suction medium by means of a suction device. Background Art

[0002] Suction devices with a cleaning function (so-called suction cleaning devices) are known in the prior art. Some of the suction devices are configured as dry vacuum cleaners, some are configured as wet vacuum cleaners, and some are configured as combined dry / wet vacuum cleaners. Generally, dry vacuum cleaners are mainly used in households because they are relatively inexpensive and are also diverse in the market. They are also suitable for commercial cleaning, such as cleaning hotel rooms. However, there are also some suction devices that are not intended for cleaning. Therefore, suction devices can generally be referred to as suction sources.

[0003] If a dry vacuum cleaner sucks in liquid or humid air, this can cause many problems. The liquid may enter the suction turbine of the dry vacuum cleaner and damage it. Generally, the liquid can also include water. In addition to the suction turbine, the liquid may also come into contact with other electrical components of the dry vacuum cleaner. This may cause damage or failure of the electrical components. In addition, the liquid in contact with the electrical components may pose a safety hazard to the operator. In addition, dry vacuum cleaners usually include an air filter upstream of the suction turbine to remove impurities, such as dust, etc. in the air before the air sucked by the suction turbine is sent to the suction turbine. If the air filter comes into contact with liquid, or moisture in the intake air accumulates inside it, the filter may be damaged.

[0004] The above problems mean that dry vacuum cleaners cannot be used for wet vacuuming or combined dry / wet vacuuming.

[0005] However, there are situations where it is also beneficial to suck liquid or humid air. For example, some surfaces to be cleaned need to be treated with liquid to achieve a good cleaning effect. However, after the treatment, it is often necessary to remove the liquid applied to the surface to be cleaned together with the dirt it has absorbed from the surface being cleaned. It is envisioned that when cleaning up after a flood, it is usually necessary to remove a mixture of water and dirt in parts of a building (especially the basement). The removal work should be carried out as soon as possible to minimize damage to the structure of the building. Typical dry vacuum cleaners are not suitable for all of the above applications. For example, in a household environment, wet vacuum cleaners or combined dry / wet vacuum cleaners are usually not available. This is also because of their high purchase cost and their generally bulky design. In the event of a flood, wet vacuum cleaners or combined dry / wet vacuum cleaners are often not available in time due to a sudden surge in demand, and the available wet vacuum cleaners or combined dry / wet vacuum cleaners will soon be sold out.

[0006] When cleaning a hotel room, it is usually cleaned with a dry vacuum cleaner. On the other hand, for an associated bathroom or an associated wet space, it is only cleaned with a dry vacuum cleaner when it is ensured that no moisture is inhaled. However, especially for cleaning a wet space, it is advantageous to be able to also suck in the liquid or a mixture of liquid and / or air allocated for cleaning. Summary of the Invention

[0007] Therefore, an object of the present invention is to provide a simple solution for sucking in liquid. In addition, an object of the present invention is to provide a cost-effective solution for sucking in liquid.

[0008] At least one of the above objects is achieved by the cleaning assembly according to claim 1. The dependent claims relate to advantageous embodiments of the present invention.

[0009] The present invention relates to a cleaning assembly for sucking a suction medium by means of a suction device, the cleaning assembly comprising:

[0010] - an adapter device, the adapter device comprising:

[0011] a first turbine assembly, which can be driven by a primary suction air flow of the suction device;

[0012] a second turbine assembly, which can be driven to generate a secondary suction air flow for sucking the suction medium; and

[0013] a transmission assembly, which is connected to the first turbine assembly and the second turbine assembly, wherein the driving of the first turbine assembly by the primary suction air flow can be used via the transmission assembly to drive the second turbine assembly to generate the secondary suction air flow;

[0014] and

[0015] - at least one collection container assembly, which is configured to separate and collect the suction medium inhaled by the secondary suction air flow from the secondary suction air flow.

[0016] According to the present invention, "utilizing" may include: the driving effect generated by the primary suction air flow at the first turbine assembly acts at least partially on the transmission assembly and / or is transmitted to the transmission assembly, and the transmission assembly is configured to at least partially transmit the driving effect to the second turbine assembly to drive the second turbine assembly.

[0017] The present invention enables a secondary suction air flow to be generated using a primary suction air flow as a drive source. At the same time, there are two different suction air flows. While the primary suction air flow thus has the function of driving a primary turbine assembly, based on which a secondary suction air flow is generated by driving a second turbine assembly through a transmission assembly, the secondary suction air flow has the function of sucking or picking up a suction medium from the surface to be cleaned. The suction medium can include solid substances such as dust or dirt particles, and can also include liquids and / or moisture. Of course, before the suction medium is sent to the secondary turbine assembly, it is preferably separated from the secondary suction air flow or at least partially separated by the secondary suction air flow to avoid damage to the secondary turbine assembly. Therefore, the second turbine assembly can be arranged to extract air from the collection container assembly or the collection container of the collection container assembly through the secondary suction air flow. The collection container assembly or the collection container is configured to separate the suction medium from the secondary suction air flow and at least partially collect the suction medium.

[0018] The present invention enables a dry vacuum cleaner to be provided as a suction device, so that liquid and / or moist air can be sucked in through the dry vacuum cleaner. The adapter device separates the primary suction air flow from the secondary suction air flow, so that the vacuum cleaner can be prevented from being damaged by the suction medium (especially moist air and / or liquid). In this way, the suction device sucks in the primary suction air flow rather than the secondary suction air flow. This can also avoid the risk of short circuit in the dry vacuum cleaner.

[0019] The cleaning assembly according to the present invention is a compact and inexpensive solution, which enables a dry vacuum cleaner to suck away a suction medium including liquid and / or moist air. The suction medium is separated from the secondary suction air flow and collected in the collection container. Therefore, there is no risk of the moist or wet suction medium coming into contact with the dry vacuum cleaner, because in the adapter device, the primary suction air flow and the secondary suction air flow are structurally separated from each other.

[0020] According to an embodiment of the present invention, it can be arranged that the collection container assembly is configured to be able to be coupled to the adapter device. For example, it can also be arranged that the collection container assembly can be separated from the adapter device. For example, for the purposes of transportation, storage, emptying the collection container assembly or maintenance, the cleaning assembly can be disassembled into several smaller independent components.

[0021] According to an embodiment, it can be arranged that in the coupled state, the adapter device and the collection container assembly are fixedly, especially rigidly, connected to each other. This enables simple force transmission between the adapter device and the collection container assembly.

[0022] According to an embodiment of the present invention, it may be arranged that the adapter device and the collection container assembly are configured as an integral part. In other words, the adapter device and the collection container assembly are permanently coupled to each other and structurally interconnected. This enables the design of the cleaning assembly to be extremely compact. In addition, the adapter device and the collection container assembly then form a structural unit.

[0023] According to an alternative embodiment of the present invention, the cleaning assembly may further include a hose assembly configured to couple the adapter device to the collection container assembly. This enables the adapter device to be arranged separately from the collection container assembly, thereby enabling the secondary suction air flow to still be discharged from the collection container assembly to the adapter device. For example, the adapter device may be carried by an operator in the form of a backpack, while other components of the cleaning assembly (such as the collection container assembly or the cleaning tool) may be actuated, in particular displaced, by the operator. Thus, the parts to be operated by the operator are relatively light.

[0024] According to one aspect of the present invention, it may be arranged that the collection container assembly and / or the adapter device includes a rotating geometry.

[0025] According to one aspect of the present invention, it may be arranged that the collection container assembly is generally configured to have a tubular, particularly cylindrical shape. This is conducive to achieving a particularly compact design. In addition, this tubular design can reduce the number of internal corners and edges. This prevents or at least reduces the risk of certain components of the suction medium depositing on the corners and edges of the collection container assembly. In addition, this tubular design facilitates the operator's grasping. In addition to the tubular design, other geometric shapes or combined designs may also be provided. These shapes include spherical, cuboid, cubic, prismatic, cylindrical, pyramidal, conical or other polyhedra and extrudable bodies. Generally speaking, tubular refers to an elongated hollow body configured to carry a certain medium.

[0026] According to one aspect of the present invention, it may be arranged that the length of the collection container assembly is a multiple of its height and / or width and / or diameter. Preferably, this ratio is at least 5:1, and particularly preferably at least 8:1.

[0027] According to an embodiment of the present invention, it may be arranged that the collection container assembly includes at least one observation window. This enables the operator to view the inside of the collection container assembly, for example to be able to identify the filling level of the suction medium in the collection container assembly. This also enables the operator to more easily identify when the collection container assembly needs to be emptied.

[0028] According to an embodiment of the present invention, it can be arranged that the collection container assembly or the collection container at least partially comprises a transparent material. For example, the collection container assembly can also be made entirely of a transparent material. This also enables the operator to view the interior of the collection container assembly, for example to be able to identify the filling level of the suction medium in the collection container assembly. This also enables the operator to more easily identify when the collection container assembly needs to be emptied.

[0029] According to one aspect of the present invention, the collection container assembly includes a drain opening through which the suction medium can be discharged from the collection container assembly. A lid assembly can be provided which can open or close the drain opening. Additionally or alternatively, the collection container assembly can be drained via an interface through which the collection container assembly is or can be coupled to an adapter device.

[0030] According to one aspect of the present invention, it can be arranged that the collection container assembly and / or the adapter device is configured as a load-bearing structure for the cleaning assembly. This enables the cleaning assembly to be designed with extremely high stability. For example, forces and / or torques can be transferred from one area of the collection container assembly to another area of the collection container assembly. This can facilitate the use of the cleaning assembly for cleaning. This is because if the cleaning tool is also coupled to the collection container assembly, the cleaning tool can also be moved by moving the collection container assembly. Additionally or alternatively, it can be arranged that the adapter device or the cleaning assembly includes a load-bearing structure which can be coupled to the collection container assembly.

[0031] According to an embodiment of the present invention, it can be arranged such that the collection container assembly and / or the adapter device are configured such that their positions can be changed, in particular tilted. The collection container assembly can be configured such that its position can be changed, in particular tilted, together with and / or separately from other components of the cleaning assembly. This simplifies the manipulation of the collection container assembly and / or the adapter device. The position of the collection container assembly and / or the adapter device can be changed so that it can pivot in one plane, two planes, and / or multiple planes. In addition, the ability to pivot about one or more pivot axes or pivot points can also be provided. The positions of these planes, pivot axes, or pivot points relative to the collection container assembly and / or the adapter device may be fixed or variable. These planes and / or pivot axes can be aligned orthogonally to each other or at a preset angle. When the terms "position adjustable" or "pivotable" are mentioned herein, this can also include the cases of tiltable or deflectable. The term "position adjustable" can refer to not including a mere translational change in position. Thus, "position adjustable" can be defined as one or more rotational changes in position, or a change in position that combines translation and translation (translatorische und translatorische).

[0032] According to one aspect of the present invention, it can be arranged such that the cleaning assembly includes a closing body that is configured to be able to close a passage through which the primary suction air flow or the secondary suction air flow passes during operation in the closed position. In addition, in the open position, the closing body can be configured to release the primary suction air flow or the secondary suction air flow. In the case of the secondary suction air flow, the closing body in the closed position can reliably ensure that the suction medium (especially liquid) does not escape from the collection container assembly into the second turbine assembly. In this way, the cleaning assembly can also be safely stored and moved. When the suction medium in the collection container assembly reaches a predetermined level or a predetermined quantity, the closing body can be configured to be in the closed position. In the case of the primary suction air flow, the closed position can reliably ensure that no suction medium can accidentally reach the suction device even if the two suction air flows have separated.

[0033] According to another aspect of the present invention, the cleaning assembly includes a force actuator for generating an actuating force by which the closing body can be pushed into the closed position and / or the open position. The force actuator can include a magnetic force for generating the actuating force. The force actuator can be turned on and / or deactivated. The force actuator can be controllable. Preferably, the force actuator is controlled or started and / or stopped according to a control signal. The control signal can be based on signals from sensors (such as an inclination sensor and / or a liquid level sensor, etc.) in the collection container assembly.

[0034] According to one embodiment of the present invention, the cleaning assembly includes a control assembly configured to control at least a force actuator. Preferably, the control assembly is configured to perform control operations based on signals such as signals from a liquid level sensor in the collection container assembly for measuring the liquid level of the suction medium, signals from an inclination sensor for measuring the inclination of the collection container assembly, and the like.

[0035] According to one embodiment of the present invention, the cleaning assembly includes at least one handle assembly configured to be held by an operator and designed to be fixedly coupled or capable of being fixedly coupled to an adapter device and / or a collection container assembly. This enables the operator to more easily manipulate the cleaning assembly. This facilitates the use of the cleaning assembly and also facilitates its manipulation in other situations besides operation, such as during transportation or storage. This connectable configuration enables the operator to use the handle assembly when it is actually beneficial to the operator and to remove the handle assembly when it is not needed. The case of permanent coupling may include being integrally formed.

[0036] According to one embodiment of the present invention, it can be arranged that the handle assembly for coupling has an actuatable connection mechanism configured to couple the handle assembly to the adapter device and / or the collection container assembly and / or disconnect the handle assembly from the adapter device and / or the collection container assembly when actuated. This enables the handle assembly to be conveniently attached or removed as needed. Therefore, this enables the operator to use the handle assembly only when it is actually beneficial. For example, if the cleaning assembly is stored, the handle assembly can be easily removed, thereby keeping the cleaning assembly compact.

[0037] According to another embodiment of the present invention, it can be arranged that the handle assembly includes a handle portion that can be held by a user and a handle base portion configured to be coupled to the adapter device and / or the transfer assembly, wherein the position of the handle portion relative to the handle base portion is adjustable. This enables the operator to more easily adjust the handle assembly to an ergonomic position. When the cleaning assembly is retracted, the handle assembly can be retracted to a compact position.

[0038] According to one embodiment of the present invention, it can be arranged that the cleaning assembly further includes a tool connection interface for coupling to a cleaning tool, whereby a secondary suction air flow can be discharged from the cleaning tool through the tool connection interface. The tool connection interface makes it possible to couple different cleaning tools to the cleaning assembly. This enables the cleaning assembly to have multiple uses.

[0039] Advantageously, the tool connection interface is configured on the collection container component or on a tool connection module coupled to the collection container. In this way, the aspirated suction medium can be directly supplied to the collection container component. Overall, the design of the cleaning component is thus more compact.

[0040] According to an embodiment of the present invention, it may be arranged that the tool connection interface includes an electrical contact component configured to establish electrical contact with the cleaning tool. For example, such electrical contact can be used to transmit sensor signals from the cleaning tool or to transmit sensor signals to the cleaning tool. In addition, current can be provided to the cleaning tool through this electrical contact component, for example, for driving the operation of a motor, especially for driving the operation of a cleaning tool such as a cleaning brush or a roller.

[0041] According to an embodiment of the present invention, it may be arranged that the tool connection interface is configured to couple the cleaning tool or a part of the cleaning tool in a substantially rigid manner. This enables the transfer of force to the cleaning tool during operation.

[0042] According to an aspect of the present invention, it may be arranged that the cleaning component includes at least one power supply interface for establishing electrical contact with a power source. Advantageously, the power supply interface is configured on the adapter device or the collection container component. The power supply interface enables the provision of additional electrical energy through the power source. For example, this can be used to operate the cleaning tool coupled to the cleaning component.

[0043] According to an embodiment of the present invention, it may be arranged that the power supply interface includes a holder component configured to removably accommodate a storage battery.

[0044] According to an embodiment, the cleaning component includes a primary connection interface for coupling to a suction device, whereby a primary suction air flow can be discharged from the adapter device through this primary connection interface to drive the first turbine assembly. It may be arranged that the primary connection interface is configured to be adapted to the suction device, particularly in terms of geometry and / or dimensions. For this purpose, an adjustment mechanism can be provided that can be actuated to change the geometry or dimensions of the primary connection interface. Additionally or alternatively, the primary connection interface can have a plurality of interface parts for coupling to a corresponding suction device. These interface parts can have different geometries and / or dimensions. Generally speaking, these embodiments enable the corresponding components or connectors of suction devices with different geometries to be coupled to the primary connection interface. This enables the adapter device to be coupled to or made compatible with a variety of suction devices available on the market. This means that the adapter device can achieve a universal connection with various suction devices. The primary connection interface can include a thread, a bayonet lock, a clamping mechanism, etc.

[0045] According to an embodiment of the present invention, it can be arranged that the primary connection interface is configured to couple the suction device to the adapter device in a substantially rigid manner. This enables power 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 facilitates operation.

[0046] According to an embodiment of the present invention, the cleaning assembly further includes a hose assembly that is coupled to the adapter device for guiding a primary suction air flow. Preferably, the hose assembly is coupled to the primary connection interface. The hose assembly enables the suction device to be arranged separately and displaceably relative to the adapter device. For example, the suction device can be carried by an operator, such as in the form of a backpack. Then, the primary suction air flow can be discharged from the adapter device through the hose assembly. Accordingly, the cleaning assembly remains relatively lightweight and is easy to operate for the operator. Preferably, the hose assembly is elastic.

[0047] According to an embodiment of the present invention, the cleaning assembly further includes a hose assembly that couples the adapter device and the collection container assembly for guiding a primary suction air flow. Preferably, the hose assembly is coupled to the primary connection interface. The hose assembly enables at least the adapter device to be arranged separately and displaceably relative to the collection container assembly. For example, the adapter device can be carried by the operator together with the suction device, such as in the form of a backpack. Then, the primary suction air flow can be discharged from the collection container assembly through the hose assembly. Accordingly, the part of the cleaning assembly carried by the operator's arm remains relatively light. Preferably, the hose assembly is elastic.

[0048] According to an embodiment of the present invention, the cleaning assembly includes at least one fresh water tank for holding fresh water. Fresh water refers to a liquid, particularly water, that is intended for cleaning and is preferably uncontaminated. Cleaning substances such as soap, detergent, etc. can be added to the fresh water. Preferably, the cleaning assembly includes a water distribution assembly that is configured to supply fresh water from the fresh water tank to the surface to be cleaned. For this purpose, an operable valve can preferably be provided in the water distribution assembly so that the operator can adjust the amount of water distributed.

[0049] According to an embodiment of the present invention, the collection container assembly includes a riser pipe that is configured to at least partially guide the secondary suction air flow into the collection container assembly.

[0050] In one aspect, an adapter device for a suction device, in particular a suction cleaning device, is designed, the adapter device comprising: a first turbine assembly that can be driven by a primary suction air flow of the suction device; a second turbine assembly that can be driven to generate a secondary suction air flow; and a transmission assembly coupled to the first turbine assembly and the second turbine assembly, wherein the driving of the first turbine assembly by the primary suction air flow can be used via the transmission assembly to drive the second turbine assembly to generate a secondary suction air flow

[0051] "Utilizing" may include: the driving effect generated by the primary suction air flow at the first turbine assembly acts at least partially on and / or is transmitted to the transmission assembly, and the transmission assembly is configured to at least partially transmit the driving effect to the second turbine assembly to drive the second turbine assembly

[0052] According to this aspect, it is possible to utilize the primary suction air flow as a driving source to generate a secondary suction air flow. At the same time, there are two different suction air flows. While the primary suction air flow thus has the function of driving the primary turbine assembly (wherein based on this function, the second turbine assembly is driven by the transmission assembly to generate a secondary suction air flow), the secondary suction air flow has the function of sucking or picking up the suction medium from the surface to be cleaned. The suction medium may include solid substances such as dust or dirt particles, and may also include liquids and / or moisture. Of course, before the suction medium is conveyed to the secondary turbine assembly, it is preferably at least partially separated from the secondary suction air flow to avoid damage to the secondary turbine assembly. Therefore, the secondary turbine assembly may be arranged to extract air through the secondary suction air flow received from a collection container (which is configured to receive liquids). Generally, the collection container may be configured to at least partially hold the suction medium

[0053] The present invention enables a dry vacuum cleaner as a suction device to be provided, whereby liquids and / or moist air can be sucked in by the dry vacuum cleaner. The adapter device separates the primary suction air flow from the secondary suction air flow, thereby avoiding damage to the vacuum cleaner due to the suction medium (especially moist air and / or liquids). This also enables the risk of short circuits in the dry vacuum cleaner to be avoided

[0054] According to an embodiment of the present invention, the adapter device further includes a barrier assembly that provides at least one liquid barrier between the first turbine assembly and the second turbine assembly. The barrier assembly can act as a splash guard, for example, to prevent liquid from the second turbine assembly from reaching the first turbine assembly. Thus, such a barrier assembly may adopt a labyrinth-like arrangement. According to a related aspect of the present invention, it can also be arranged that the barrier assembly separates the first turbine assembly from the second turbine assembly in a substantially liquid-tight, especially fluid-tight manner. This ensures that at least no liquid (especially no moisture) can be transferred from the first turbine assembly to the second turbine assembly. This can prevent liquid from entering the secondary suction air flow and potentially damaging the suction device. This fluid-tight separation means that there is no medium exchange between the second turbine assembly and the first turbine assembly. Therefore, these two suction air flows are at least completely separated from each other inside the adapter device. This can ensure that the adapter device operates extremely safely and reliably by using a dry suction device. In other words, the barrier assembly can be configured to separate the primary suction air flow and the secondary suction air flow from each other such that substantially no liquid and / or moisture can enter the primary suction air flow from the secondary suction air flow. According to an embodiment of the present invention, it can also be arranged that the barrier assembly includes a sealing assembly. The sealing assembly can include a labyrinth seal device.

[0055] According to an aspect of the present invention, the barrier assembly can be configured to at least partially support or at least partially form a transfer assembly. This enables a compact design of the adapter device.

[0056] According to an advantageous embodiment of the present invention, the adapter device further includes a primary connection interface that is configured to be coupled to a suction device for driving the first turbine assembly through a primary suction air flow. It can also be arranged that the primary connection interface is configured to be adaptable to the suction device, especially in terms of geometry and / or dimensions. For this purpose, an adjustment mechanism can be provided that can be activated to change the geometry or dimensions of the primary connection interface. Additionally or alternatively, the primary connection interface can have a plurality of interface parts for coupling to corresponding suction devices. These interface parts can have different geometries and / or dimensions. Generally speaking, these embodiments enable corresponding components or connectors of suction devices with different geometries to be coupled to the primary connection interface. This enables the adapter device to be coupled to or made compatible with a variety of suction devices available on the market. This means that the adapter device can achieve a universal connection with various suction devices. The primary connection interface can include a thread, a bayonet lock, a clamping mechanism, a screw connection, etc.

[0057] Additionally or alternatively, it can also be arranged such that the adapter device can be coupled to the primary connection module, wherein the primary connection module has the above-described primary connection interface. Accordingly, a connecting member having a predetermined geometry can be provided on the adapter device for coupling to the primary connection module. Due to the presence of the connecting member, the structure of the adapter device remains simple, but through the primary connection module, the adapter device can still be coupled to or be compatible with a plurality of suction devices.

[0058] According to an embodiment of the present invention, it can also be arranged such that the transmission assembly couples the first turbine assembly to the second turbine assembly mechanically, pneumatically, hydraulically, or electrically or by a combination thereof to drive the second turbine assembly by driving the first turbine assembly. For example, it can be arranged such that the transmission assembly is configured to generate electrical energy based on driving the first turbine assembly, so that the electrical energy can be used to drive the second turbine assembly. Accordingly, the transmission assembly can have a corresponding generator and a corresponding motor drive device. Additionally, the transmission assembly can be configured such that driving the first turbine assembly causes a fluid (such as hydraulic oil) in the transmission assembly to move, wherein the transmission assembly is also configured to drive the second turbine assembly according to the movement of the fluid.

[0059] According to an embodiment of the present invention, it can also be arranged such that the transmission assembly includes a shaft, and the first turbine assembly is configured to drive the shaft, and the shaft is configured to drive the second turbine assembly to generate a secondary suction air flow. The shaft can be directly driven or indirectly driven. Additionally, the second turbine assembly can also be directly driven or indirectly driven. Accordingly, according to direct drive, it can be arranged that the shaft couples the first turbine assembly and the second turbine assembly, in particular rigidly couples them together. For example, the indirect drive device includes a clutch and / or a gearbox, especially having a speed increasing or decreasing function ( Untersetzungsfunktion).

[0060] According to an embodiment of the present invention, it can also be arranged such that the barrier assembly at least partially supports the shaft. This enables the barrier assembly to have an additional function. Generally speaking, this is beneficial for making the design of the adapter device compact.

[0061] According to an advantageous embodiment of the invention, it may be provided that the first turbine assembly includes a primary turbine impeller configured to rotate about a primary rotational axis; and the second turbine assembly includes a secondary turbine impeller configured to rotate about a secondary rotational axis, wherein the primary rotational axis and the secondary rotational axis are arranged substantially parallel or coincident with each other. For the sake of clarity only, it is necessary to mention that the primary turbine impeller can be driven by a primary suction air flow, while the secondary turbine impeller is configured to generate a secondary suction air flow. According to a preferred embodiment of the invention, the primary rotational axis and the secondary rotational axis are identical, i.e., coincident. Thus, this embodiment relates to a special form of parallelism, namely the coincident arrangement of the two rotational axes. This enables the adapter device to achieve a particularly compact design.

[0062] In this case, it may be provided that when driving the second turbine assembly, the secondary suction air flow is initially parallel to the secondary rotational axis in order to be supplied to the secondary turbine impeller and then flows in a radial direction opposite to the secondary rotational axis in order to flow out of the secondary turbine impeller. Thus, the movement of the secondary turbine impeller acts as an additional barrier between the secondary suction air flow and the primary suction air flow, in particular preventing liquids and / or moisture from passing through. This is due to the centrifugal force which, during the driving of the secondary turbine impeller, acts on any liquid and / or moisture and / or dirt that may adhere to the secondary turbine impeller and carries these substances away from the secondary turbine impeller in the radial direction. Alternatively, the secondary suction air flow may subsequently also flow parallel to the rotational axis or at any angle with respect to the rotational axis in order to flow out of the secondary turbine impeller. Furthermore, it may be provided that the secondary suction air flow exits the adapter device at a predetermined angular range around the secondary rotational axis. Preferably, the primary suction air flow enters the adapter device outside this angular range and flows towards the primary turbine impeller.

[0063] According to an embodiment, it may be provided that the adapter device has a reduction ratio or transmission ratio. This can be provided in the transmission assembly. For this purpose, a gearbox can be provided which converts a certain rotational speed of the first turbine assembly into a different rotational speed required for the second turbine assembly. However, a reduction ratio or transmission ratio is also produced by different designs of the turbine impellers of the turbine assemblies, for example, by different blade geometries or different sizes of the turbine impellers.

[0064] According to an advantageous embodiment of the invention, the adapter device comprises an actuatable valve assembly configured to adjust the proportion of the primary suction air flow acting on the first turbine assembly. The actuatable valve assembly can be configured as a throttle valve. The actuatable valve assembly enables the adapter device to be coupled to suction devices with different suction powers or different suction air flows. For example, if the suction power of the suction device is very high, the valve assembly can be at least partially opened so that only a part of the primary suction air flow acts on the first turbine assembly. In the case of a suction device with a lower suction power, the valve assembly can be fully or nearly fully closed. The valve assembly can be actuated in such a way that it adjusts the proportion of the primary suction air flow acting on the first turbine assembly according to the intensity of the primary suction air flow. It is conceivable that a spring assembly opens or closes a flap on the valve assembly according to the intensity of the primary suction air flow. The term "intensity" can include a preset volume flow rate. In addition to the spring assembly, other at least partially automated mechanisms can also be provided.

[0065] According to an advantageous embodiment of the invention, the adapter device further comprises a secondary connection interface for coupling the adapter device to a module, wherein in the coupled state, a secondary suction air flow can be at least partially discharged from the module. The module preferably comprises a collection container for collecting liquid and / or dirt, but can also comprise an inlet pipe, a floor unit or a cleaning tool. The secondary connection interface can include a thread, a bayonet lock, a clamp lock, a screw connection, etc.

[0066] According to an embodiment of the invention, it can be arranged that the module from which the secondary suction air flow can be discharged is integrally formed with the adapter device. For example, such a module can comprise a collection container for collecting liquid and / or dirt.

[0067] According to an embodiment of the invention, the adapter device further comprises a collection container for collecting liquid and / or dirt.

[0068] According to an embodiment of the invention, the adapter device further comprises at least a first electrical contact assembly for supplying current to the adapter device, wherein the adapter device preferably further comprises a second electrical contact assembly for at least partially transferring the current to a module coupled to the adapter device. For example, the module comprises a cleaning tool which can be driven by an electric motor or by current.

[0069] According to an embodiment of the present invention, the adapter device includes a generator configured to generate an electric current to supply the electric current to a module (such as a tool, etc.) coupled to the adapter device. For this purpose, at least one connector for releasing the electric current may be formed on the adapter device. The generator may be driven by a primary suction air flow or a secondary suction air flow. For example, the generator is capable of generating a voltage level of 12 volts or 24 volts. This voltage level is different from the voltage level of a conventional suction device that typically operates at 230 volts. However, this voltage level is less dangerous and is generally used to power tools or sensors.

[0070] According to an advantageous aspect of the present invention, a receiving interface for coupling to an additional energy source (preferably a storage battery) may be further provided on the adapter device. This enables additional energy, such as an electric current, to be supplied to the adapter device. For example, such supplied energy can be used to supply energy to a module (such as a cleaning tool drivable by an electric motor) coupled to the adapter device.

[0071] According to an embodiment of the present invention, the adapter device further includes a handle assembly formed on or capable of being coupled to the adapter device and configured to be actuated by an operator to move the adapter device. This facilitates the operation of the adapter device by the operator.

[0072] According to an embodiment of the present invention, the adapter device further includes a housing, wherein the first turbine assembly and / or the second turbine assembly and / or the transmission assembly are at least partially surrounded by the housing.

[0073] According to an embodiment of the present invention, the housing includes at least a first housing part and a second housing part, and the first housing part and the second housing part are configured such that they can be coupled to each other. For example, these housing parts can be coupled to each other by means of a bayonet lock or a threaded screw joint, etc. These two housing parts facilitate the assembly and maintenance of the adapter device. Therefore, the housing can adopt a modular design.

[0074] According to an embodiment of the present invention, the adapter device has a modular structure. For example, the first turbine assembly and / or the second turbine assembly and / or the transmission assembly and / or the housing or housing parts can all form modules. It can be further provided that these modules are configured to be detachably coupled to each other. This modular design and the ability to be coupled together make the assembly simple. In addition, the adapter device is easy to disassemble for cleaning, maintenance, or replacement of spare parts. Moreover, for example, the turbine impeller of the turbine assembly can be easily replaced so that the adapter device can be adapted to a suction source with different suction powers.

[0075] According to one aspect of the invention, it can be arranged that the transfer component and / or the second turbine component and / or the first turbine component are configured to be able to be started and deactivated, in particular to be able to be controlled. For this purpose, a control system can be provided, by means of which, for example, the transfer component can be started and deactivated. In addition, a sensor component can be provided, whereby the transfer component and / or the second turbine component and / or the first turbine component can be started and deactivated based on signals from the sensor component. The sensor can be a liquid level sensor for measuring the liquid level of the suction medium in the collection container. Additionally or alternatively, a humidity sensor can be provided as the sensor. For example, the signal can indicate that a predetermined humidity value in the secondary suction air flow has been exceeded. Additionally or alternatively, an inclination sensor can be provided as the sensor.

[0076] According to one embodiment of the invention, the adapter device can have at least one three-stage connection interface, whereby the secondary suction air flow can be at least partially discharged through the three-stage connection interface. For example, the three-stage connection interface can be configured to be coupled to a hose. Thus, it can include a suction connector. In this way, the air and / or liquid inhaled by the secondary suction air flow (i.e., the suction medium) can be at least partially discharged through the three-stage connection interface and sent to the hose for discharge. Particularly advantageously, before entering the adapter device, the suction medium has not been completely discharged or only partially discharged from the secondary suction air flow. Even so, the suction medium cannot enter the primary suction air flow and the suction device. It is contemplated that liquid can be inhaled through the adapter device and can be discharged from the adapter device through the three-stage connection interface. In this way, a suction medium such as liquid can be inhaled into the adapter device and can be discharged again in a controllable manner. In this way, a large amount of liquid can be inhaled and discharged in a specific manner, which is often necessary after events such as floods. Instead of or in addition to the three-stage connection interface, a module such as a hose can be integrally formed with the adapter device to discharge the suction medium.

[0077] The invention also relates to a cleaning assembly, which comprises:

[0078] - an adapter device of one of the above types; and

[0079] - a suction device coupled to the first turbine component for generating a primary suction air flow.

[0080] The suction device can be configured as a suction cleaning device, in particular as a dry vacuum cleaner. For example, the suction device can be a handheld vacuum cleaner or a traditional vacuum cleaner. The suction device can be operated by a battery.

[0081] The adapter device can be permanently installed in the cleaning assembly and / or can be integrally formed with the cleaning assembly. Alternatively, the adapter device can be configured as an interchangeable module of the cleaning assembly. Generally speaking, it should be noted that the term "adapter" should be understood in a broad sense and includes not only a modular design that is connected to other components through an interface, but also an integral design. "Integral" means a component having one or more other components or modules. In addition, when the term "interface" is used, the components connected to each other through the "interface" can also adopt an integral design rather than a connectable design.

[0082] The advantages, features and embodiments described for the adapter device also apply to the cleaning assembly, and vice versa. BRIEF DESCRIPTION OF THE DRAWINGS

[0083] The present invention will be further described below with reference to the accompanying drawings. In the drawings:

[0084] Figure 1 is a schematic illustration of an adapter device according to the present invention;

[0085] Figure 2 is a schematic illustration of the adapter device according to the present invention in a state of being coupled to a collection container;

[0086] Figure 3 is an exploded view of another embodiment of the adapter device according to the present invention;

[0087] Figure 4 is a cross-sectional view of another embodiment of the adapter device according to the present invention;

[0088] Figure 5 is an exemplary illustration of a cleaning assembly;

[0089] Figure 6 is an exemplary exploded view of a collection container assembly;

[0090] Figure 7 is an exemplary partial exploded view of a cleaning assembly;

[0091] Figure 8 is an exemplary illustration of a cleaning assembly in a state of being coupled to an exemplary suction device;

[0092] Figure 9 is an exemplary illustration of an adapter device having an exemplary connectable suction device;

[0093] Figure 10a is an exemplary exploded view of a third handle assembly;

[0094] Figure 10b is an exemplary exploded view of a fourth handle assembly;

[0095] Figure 11 is an illustration of a cleaning assembly with an exemplary cleaning tool;

[0096] Figure 12a is a detailed illustration of an exemplary connection module;

[0097] Figure 12b is another detailed illustration of the exemplary connection module; and

[0098] Figure 13 is a detailed view of an exemplary tool connection module. DETAILED DESCRIPTION

[0099] Figure 1 is a schematic illustration of an adapter device 10 for a suction device according to the present invention. The adapter device 10 includes a first turbine assembly 12 that can be driven by a primary suction air flow 14. The adapter device 10 further includes a second turbine assembly 16 that can be driven to generate a secondary suction air flow 18. The adapter device 10 also includes a transmission assembly 20 that is coupled to the first turbine assembly 12 and the second turbine assembly 16. The transmission assembly 20 is configured such that the second turbine assembly 16 can be driven to generate the secondary suction air flow 18 by driving the first turbine assembly 12 with the primary suction air flow 14.

[0100] "can be configured such that" can mean that: the driving effect generated by the primary suction air flow 14 at the first turbine assembly 12 acts at least in part on and / or is transmitted to the transmission assembly 20, and the transmission assembly 20 is configured to transmit at least in part the driving effect to the second turbine assembly 16 to drive the second turbine assembly.

[0101] The adapter device 10 includes 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 includes a barrier assembly 24 disposed within the housing 22 that divides the housing 22 into a first or upper housing portion 26 and a second or lower housing portion 28. The barrier assembly 24 extends through the schematically illustrated transmission assembly 20. The barrier assembly 24 provides a barrier that is substantially impermeable to fluid such that, for example, there is no fluid or gas exchange between the two housing portions 26, 28 at least within the housing 22.

[0102] At the upper end of the first turbine assembly 12, a primary connection interface 30 is provided, which is configured to be coupled to a suction device. For this purpose, the primary connection interface 30 is configured to have a circular cross-section, although other shapes can also be used. For the sake of simplicity, the suction device is not shown here. However, the primary suction air flow 14 generated by the suction device and acting on the first turbine assembly 12 is shown as in the figure. If the suction device is coupled to the primary connection interface 26 and is in operation, thus generating the primary suction air flow 14, then the primary suction air flow 14 will start from the inflow opening 32 arranged on one side of the first turbine assembly 12, pass through the first turbine assembly 12, and leave the first turbine assembly 12 via the primary connection interface 30, and then flow into the suction device. During this process, the primary suction air flow 14 drives the first turbine assembly 12. The transmission assembly 20 is configured to be able to drive the second turbine assembly 16 by driving the first turbine assembly 12. For this purpose, as shown here, the transmission assembly 20 can include a shaft assembly 34, which mechanically couples the first turbine assembly 12 to the second turbine assembly 16, so that the mechanical movement of the first turbine assembly 12 (especially the turbine impeller of the first turbine assembly 12) is transmitted to the second turbine assembly 16 (especially the turbine impeller of the second turbine assembly 16) through the shaft assembly 34. By driving the second turbine assembly 16, a secondary suction air flow 18 is generated. Therefore, the secondary suction air flow 18 is transmitted through the secondary connection interface 36 arranged at the lower end of the housing 22 on the second turbine assembly 16 to the outflow opening 38 arranged on the side of the housing 22 and the side of the second turbine assembly 16. In other words, driving the second turbine assembly 16 creates an inflow effect at the secondary connection interface 36 so that air (i.e., the secondary suction air flow 18) can be inhaled via the secondary connection interface 36. The secondary connection interface 36 is configured to be connected to modules such as a suction pipe, a tool, or a floor unit, etc. In this example, the secondary connection interface 36 has a circular cross-section, but other shapes can also be used. The secondary suction air flow 18 can be used to inhale liquids or suction media. The adapter device 10 can separate the primary suction air flow 14 from the secondary suction air flow 18. In this way, in particular, any suction media such as liquids or moisture cannot enter the primary suction air flow 14 from the secondary suction air flow 18 and reach the suction device. However, the primary suction air flow 14 generated by the suction device can be used to generate the secondary suction air flow. With the aid of the adapter device 10, a suction device in the form of a dry vacuum cleaner can be converted into a wet vacuum cleaner. If it is desired to inhale a suction medium (such as a liquid) like a pump through the adapter device 10 and discharge it again, then the outflow opening 38 can be configured as a connection interface or a tertiary connection interface for a hose for discharging the liquid. This enables a large amount of liquid to be inhaled and discharged.

[0103] The housing 22 is cylindrical, but it can also be in the shape of, for example, a cuboid, a circle, etc. In addition to coupling the module via the secondary connection interface 36, a connection interface or a connection component (such as a thread or a bayonet lock) can also be provided on the housing 22 to discharge the secondary suction air flow from the module (such as a collection container) for sucking the suction medium.

[0104] Figure 2 FIG. is a schematic illustration of the adapter device 10 according to the present invention in a state of being coupled to the collection container 40 of the collection container assembly 41. The structure of the adapter device 10 is based on Figure 1 the structure shown, but there are the following differences. According to Figure 2 it can be seen that the lower housing part 28 forms the collection container 40 or the collection container assembly 41. The first turbine assembly 12 is arranged in the larger upper housing part 26. Due to the increased size of the upper housing part 26, the primary connection interface 30 is configured on the pipe part 31 that couples the first turbine assembly 12 to the primary connection interface 30. A liquid collection area 42 is provided in the collection container 40. The secondary suction air flow 18 generates a negative pressure in the collection container 40, so that the suction medium (especially air and / or liquid and / or dirt, etc.) from, for example, the surface to be cleaned can be sucked in via the inlet pipe (Ansaugrohrs) 44 arranged at the lower end of the housing 22 and introduced into the collection container 40. The liquid is separated in the liquid collection area 42, so that only air will be discharged from the collection container 40 via the secondary suction air flow 18. For this purpose, the inlet pipe 44 extends through and beyond the liquid collection area 42, so that the discharge opening 46 of the inlet pipe 44 is arranged above the liquid collection area 42. In addition, in the collection container 40, in the area between the discharge opening 46 and the second turbine assembly 16, a splash protection barrier 48 is configured, which shields the discharge port 46 at a certain distance in the form of a shroud and prevents the suction medium from flowing directly in the direction of the second turbine assembly 16 after leaving the inlet pipe 44.

[0105] Figure 3 FIG. is a schematic exploded view of another embodiment of the adapter device 110 according to the present invention. The adapter device 110 is based on according to Figure 1 and Figure 2The operating mode of the adapter device 10 shown, but with a special structure. The adapter device 110 has a first housing part 126, a first turbine assembly 112 with a primary turbine impeller 150, a barrier assembly 124, a second turbine assembly 118 with a secondary turbine impeller 152, a transmission assembly 120 including a rigid shaft 154, and a second housing part 128. The shaft 154 is arranged on an axis A and rotates about this axis A during operation. The shaft 154 is configured to receive a first ball bearing 156 and a second ball bearing 158 in its central cylindrical region, but other types of rolling bearings may alternatively or additionally be provided. The ball bearings 156, 158 are arranged to radially and axially support the shaft 154 relative to the barrier assembly 124, wherein the shaft 154 is arranged to rotate relative to the barrier assembly. For this purpose, an opening 160 is configured in the barrier assembly 124, which opening 160 is configured to receive the ball bearings 154, 156 and to contact the ball bearings on their outer circumferential surfaces. The barrier assembly 124 is substantially axially symmetric with respect to the axis A and symmetric with respect to a central plane arranged substantially orthogonally to the axis A along its central axis, which central axis coincides with the axis A. For this purpose, an interference fit may be provided. On both sides along the axis A, outer circumferential geometries (not shown) are configured on the shaft 154 with a smaller diameter, which outer circumferential geometries are configured to receive corresponding inner circumferential geometries, and these inner circumferential geometries are configured on the primary turbine impeller 150 and the secondary turbine impeller 152 and are also arranged along the axis A. These circumferential geometries are configured to form an interference fit such that the rotation of the primary turbine impeller 150 or the secondary turbine impeller 152 can cause the shaft 154 to rotate and vice versa. For example, as an alternative and supplement to the form fit, a non-form fit connection may also be used. At both ends of the shaft 154, external threads with a smaller diameter are configured, and corresponding shaft nuts 162, 164 can be screwed onto these external threads. The first shaft nut 162 is configured to axially fasten the primary turbine impeller 150 to the shaft 154, and the second shaft nut 164 is configured to axially fasten the secondary turbine impeller 152 to the shaft 154. The corresponding regions with outer circumferential geometries adjacent to the central cylindrical region form shoulders or stops with respect to their respective central cylindrical regions. The first shaft nut 162 presses the primary turbine impeller 150 against this structure, and the second shaft nut 164 presses the secondary turbine impeller 152 against this structure. The corresponding shoulders are used to arrange the primary turbine impeller 150 or the secondary turbine impeller 152 at a smaller distance from the barrier assembly 124 such that they can rotate freely relative to the barrier assembly 124 and the ball bearings 154, 156.

[0106] The primary turbine impeller 150 and the secondary turbine impeller 152 have substantially the same structure and are only arranged on the shaft 154 rotated by 180 degrees. Therefore, for simplicity, the features of one of the two turbine impellers 150, 152 described below correspondingly apply to the other. The primary turbine impeller 150 is configured to be substantially flat on the side facing the barrier assembly 124 and only has an opening with an inner circumferential geometry to receive the shaft 120. On the side away from the barrier assembly 124, the secondary turbine impeller 152 has an intake opening 166 arranged at the center, which is surrounded by an annular side surface 168 and is configured to protrude relative to the annular side surface 168. The secondary turbine impeller 152 is configured with a plurality of internal turbine blades 170, and these internal turbine blades 170 are arranged to generate an air flow when the secondary turbine impeller 152 moves or to cause the secondary turbine impeller 152 to move based on the air flow. The turbine blades 170 are arranged such that when the secondary turbine impeller 152 rotates in the first rotation direction around the axis A, the air flow flows outwards from the intake opening 166 towards the radial opening 172 arranged on the outer circumference of the secondary turbine impeller 152. This air flow corresponds to the secondary suction air flow. The first rotation direction corresponds to the rotation direction of the adapter device 110 during operation. If the secondary turbine impeller 152 is rotated in the second direction opposite to the first rotation direction, the air flow will be led outwards from the radial opening 172 through the secondary turbine impeller 152 towards the intake opening 166. As described above, the primary turbine impeller 150 is constructed similarly to the secondary turbine impeller 152. In particular, the shape of the turbine blades can also be changed or configured in an adapted manner thereby. This is because the primary turbine impeller 150 is mainly intended to be driven by a suction air flow (so-called primary suction air flow), which is led from the radial opening 172 of the primary turbine impeller 150 towards the outlet opening 174 configured similarly to the intake opening 166, while the secondary turbine impeller 152 (as described above) is configured to generate an air flow (so-called secondary suction air flow) based on its rotation in the first rotation direction, and this air flow is led from the intake opening 166 towards the radial opening 172.

[0107] The intake opening 166 is adapted to receive the second shaft nut 164 such that the second shaft nut 164 contacts the secondary turbine impeller 152 at the inner surface and axially fixes it on the shaft 154. Correspondingly, the outlet opening 174 is configured to receive the first shaft nut 162 such that the first shaft nut 162 contacts the primary turbine impeller 150 at the inner surface and axially fixes it on the shaft 154. The internal arrangement of each shaft nut 162, 164 has the advantage of minimizing the interference with the air flow.

[0108] The barrier assembly 124 is disc-shaped, substantially symmetric with respect to the axis A, and symmetric with respect to the central plane of the barrier assembly 124 that is orthogonal to the axis A. Ribs 176 are arranged on both sides in the direction of the axis A and are used to reinforce the barrier assembly 124. Except for the opening 160, no channels are arranged in the direction of the axis A, so that no fluid can pass through the barrier assembly 124. At least one sealing assembly can be provided at the opening 160 with respect to the ball bearings 156, 158, so that no fluid can pass between the ball bearings 156, 158 and the barrier assembly 124. Similarly, a sealing assembly can also be provided in the region between the ball bearings 156, 158 and the shaft 154. The ball bearings 156, 158 are also configured for fluid sealing. An annular central web 180 is arranged on the circumferential surface 178 of the barrier assembly 124. On one side of the central web 180, in the direction along the axis A towards the first turbine assembly 112, a first radial connection surface 182 is arranged to contact the first housing part 126 and fix it to the barrier assembly 124. On the other side of the central web 180, in the opposite direction along the axis A, that is, in the direction of the second turbine assembly 118, a second radial connection surface 184 is arranged to contact the second housing part 128 and fix it to the barrier assembly 124. A plurality of corresponding fastening bolts 186 are provided on the connection surfaces 182, 184 for fastening, and together with the housing parts 126, 128, they form a corresponding bayonet lock. Another fastening assembly (for example, a threaded screw connection) can be provided to replace the bayonet lock. Additionally or alternatively, clips can be provided, and these clips can be snapped together for re-fastening and releasing. The advantage of the bayonet lock is simple operation. A connection fork for the bayonet lock is arranged on the first connection surface 182. Corresponding sealing assemblies can be arranged at the circumferential surface 178 (for example, at the connection surfaces 182, 184) to provide a fluid-tight connection between the corresponding housing parts 126, 128 and the barrier assembly 124.

[0109] The first housing part 126 has an annular part 188 which is configured to be internally hollow and, in particular, surrounds the primary turbine impeller 150 and the barrier assembly 124 at least when attached to the first connection surface 182. The annular part 188 has a plurality of air channel openings 190 which are used to provide air contact between the primary turbine impeller 150 and the surrounding environment. Thus, under one operating condition, the primary suction air flow can pass through the air channel openings 190 and reach the primary turbine impeller 150. An inner circumferential surface 192 is also arranged on the annular part 188, which is adapted to contact the first connection surface 182. For this purpose, a mating part of the bayonet lock is arranged on the inner circumferential surface 192 in the form of a plurality of groove assemblies, and these groove assemblies are configured to receive the corresponding connection fork teeth of the barrier assembly 124.

[0110] In addition, the primary connection interface 130 is formed on the first housing part 126 in the form of a tubular part that is configured to be coupled to a suction device, such as a hose or a nozzle of a dry vacuum cleaner. For this purpose, the hose or the nozzle can surround the tubular part or be pushed into the tubular part. The tubular part is hollow inside and extends into the annular part 188. In addition, a first connection lug 183 and a second connection lug 185 are formed on the first housing part 126. These lugs are arranged on opposite sides of the first housing part 126 in the radial direction with respect to the axis A. These lugs are used to interact with a connection assembly that may be configured on the suction device to fixedly but detachably couple the suction device to the primary connection interface 130.

[0111] An outwardly open air passage opening 195 is provided between the annular part 188 and the tubular part 130, wherein the first housing part 126 is configured to be coupled to an actuatable valve assembly 194. In this example, the valve assembly 194 is configured as a two-piece annular throttle valve, where the two parts of the throttle valve can be detachably clamped together and the throttle valve can rotate about the axis A relative to the first housing part 126. The throttle valve also has an air passage opening that can coincide with or close the air passage opening of the first housing part 126 depending on the rotational position. This allows adjustment of the proportion of the primary suction air flow passing through the primary turbine impeller 150.

[0112] The second housing part 128 also has an annular part 196 that has an air passage opening to allow the air (secondary suction air flow) conveyed by the secondary turbine impeller 152 to escape into the surrounding environment. For example, with respect to the fastening assembly, the annular part 196 is structurally similar to the annular part 188 of the first housing part 126, so that other features thereof (such as a bayonet lock) can be referred to.

[0113] The second housing part 128 further includes a secondary connection interface 136 configured as an annular extension. The secondary connection interface 136 has a part of a bayonet lock, namely, a plurality of groove assemblies. The secondary connection interface 136, particularly the annular extension, is configured to be coupled to a module such as a collection container. For this purpose, a sealing assembly can be provided between the secondary connection interface 136 and the module to provide a fluid-tight connection. Alternatively or additionally, the secondary connection interface 136 can also be configured on the tubular air inlet region 198 that is formed on the second housing part 128 and present in this example. The annular extension is supported by a plurality of ribs with respect to the tubular air inlet region 198.

[0114] Figure 4FIG. 0 is a schematic cross-sectional view of another embodiment of the adapter device 110 in an assembled or connected state according to the present invention. Accordingly, the first housing part 126 is attached to the barrier assembly 124 by a 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 part 126 surrounds the primary turbine impeller 150, but is spaced therefrom in the radial direction. The air passage opening 190 provided in the annular part 188 allows the primary suction air flow to enter and pass through the adapter device 110 or the first turbine assembly 116. The air passage opening 195 is closed by the valve assembly 194, so that the primary suction air flow enters only through the air passage opening 190. This allows the primary suction air flow to act fully on the first turbine assembly 112 and drive the primary turbine impeller 150. For simplicity, no suction device is coupled to the primary connection interface 130. However, the arrows indicate the flow of the primary suction air flow and the generated secondary suction air flow.

[0115] The second housing part 128 is attached to the barrier assembly 124 by means of an associated bayonet lock. For this purpose, the inner circumferential surface of the annular part 196 contacts the second connection surface 184 of the barrier assembly 124. The second housing part 128 surrounds the secondary turbine impeller 152, but is spaced therefrom in the radial direction. The air passage opening (not visible in the cross-sectional view due to offset) provided in the annular part 196 allows the secondary suction air flow to enter the adapter device 110 or the second housing part 128 via the air inlet area 198 and pass through the second turbine assembly 118. For simplicity, no module is arranged at the secondary connection interface 130. However, the arrows indicate the flow of the secondary suction air flow.

[0116] Accordingly, the primary suction air flow passes through the first turbine assembly 116 and acts on the primary turbine impeller 150 by applying a circumferential driving force to the respective turbine blades 173 of the primary turbine impeller 150. Thus, the first turbine assembly 116 is driven by the primary suction air flow. Since in the assembled state, the primary turbine impeller 150 is rotationally fixed to the transmission assembly 120 including the shaft 154, the rotation of the primary turbine impeller 150 causes the rotation of the shaft 154 to be driven, and in turn causes the rotation of the secondary turbine impeller 152 which is also rotationally fixed to the shaft 154 in the assembled state. The rotation of the secondary turbine impeller 152 acts on the air present in the second turbine assembly 118, pushes the air radially outward through the air passage opening out of the adapter device 110, and sucks in air through the air inlet area 198. In this way, a secondary suction air flow is generated. The secondary suction air flow can be used to suck in the suction medium.

[0117] Obviously, these two air suction flows are two different and structurally separated air suction flows. In this case, the barrier assembly 124, among other functions, ensures that the air suction flows are spatially separated from each other. During operation, the rotation of the primary turbine impeller 150 also ensures that any residues of the suction medium (e.g., moisture or liquid) are discharged to the outside and do not enter the primary air suction flow.

[0118] It can also be seen that in the operating state, the shaft 154 and the turbine impellers 150, 152 rotate about a common axis A.

[0119] Various structural measures can be provided to prevent air, dirt, moisture, and / or liquid (especially water) etc. in the region of the annular portions 188, 196 from entering the inflowing primary air suction flow from the outflowing secondary air suction flow. For example, the air passage opening 190 and the air passage opening of the second housing part 128 can be arranged offset from each other in the circumferential direction, an additional structural barrier can be provided between them, or the air passage opening 190 can be provided only on one side of the adapter device, while the air passage opening of the second housing part 128 is arranged on the opposite side.

[0120] To be able to discharge the liquid, a third connection interface similar to the first embodiment can be provided in place of the air passage opening of the second housing part 128. For example, it can be configured as a connector for a hose.

[0121] For example, the region of the primary connection interface 130 (e.g., its outer peripheral surface) can be configured to be coupled to the handle assembly. Alternatively, the handle assembly can be formed thereon. For example, the handle assembly includes a handle with which an operator can operate the adapter device 110.

[0122] Figure 5 A cleaning assembly 300 according to the present invention is shown, which includes Figure 3 and Figure 4 the adapter device 110 and the collection container assembly 200, as well as a first handle assembly 202 and a second handle assembly 204.

[0123] The collection container assembly 200 has a collection container 201 that is substantially tubular in configuration. The inner diameter of the collection container is substantially uniform, although other geometries may also be employed. The collection container 201 is hollow and extends along a collection container axis S, which coincides with the axis A of the adapter device 110 in the illustrated coupled state. Additionally, the collection container is configured as a solid of revolution. 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 assembly 200 is coupled to the adapter device 110 by means of a secondary connection interface 136 (a bayonet lock in this example) of the adapter device 110. For this purpose, four bolts are formed at the first end 206 of the collection container 201, which extend radially outward from the lateral surface 208 of the adapter device 110 and engage with the openings of the bayonet lock of the adapter device 110. In other words, a part of a bayonet lock complementary to the bayonet lock on the adapter device 110 is formed on the collection container 201. The collection container assembly 200 and the adapter device 110 can be separated from each other by rotating relative to each other in a first rotational direction. Additionally, the collection container assembly 200 and the adapter device 110 can be fixedly coupled to each other by rotating in a second rotational direction opposite to the first rotational direction. The secondary connection interface 136 may also have another type of connection (e.g., a threaded screw connection or fastening by means of screws, etc.) in place of the bayonet lock.

[0124] The secondary connection interface 136 enables the adapter device 110 and the collection container assembly 200 to be rigidly coupled, such that they are impermeable to fluids from the surrounding environment. Accordingly, the movements of the adapter device 110 and the collection container assembly 200 are coupled to each other, and a movement or tilt of the collection container assembly 200 also causes a corresponding movement or tilt of the adapter device 110, and vice versa.

[0125] The lateral surface 208 also has a plurality of annular depressions 209. These depressions 209 are configured to reduce the outer diameter of the collection container 201. The depressions 209 extend in the direction of the collection container axis S with a predetermined width, where the ratio of the width to the distance to an adjacent depression 209 is at least 1:3, preferably at least 1:4. Additionally, a first handle assembly 202 and a second handle assembly 204 are formed on the lateral surface 208. The first handle assembly 202 has two coupling rings 210 and a two-piece handle member 212. The coupling rings 210 completely surround the lateral surface 208 or engage in a respective one of the depressions 209. The two-piece handle member 212 is similar to a parallelogram and has a handle area (Griffbereich) 214 configured to be grasped by an operator. The handle area 214 represents the upper side of the parallelogram and is substantially aligned parallel to the collection container axis S.

[0126] The second handle assembly 204 also has a coupling ring 216 that completely surrounds the lateral surface 208. In addition, the second handle assembly 204 has an L-shaped retaining bracket 218 with a handle area 220, the longitudinal axis of which is aligned substantially transversely to the collection container axis S. The retaining bracket 218 is coupled to the coupling ring 216 by a lockable pivot joint 222, where the pivot joint 222 can be opened by slightly loosening a screw so that the retaining bracket 218 pivots relative to the coupling ring 216 about a pivot axis A1 that is aligned perpendicular to the collection container axis S.

[0127] The coupling ring 210 can be arranged on each recess 209 as required. The lateral surface 208 can also be configured with a constant outer diameter in place of the recesses, in which case, preferably, the coupling ring 210 can be attached to the lateral surface 208 by means of a clamping action. This additionally increases the variability for the operator, who will not be limited to making connections in the recesses 209 that are equally spaced from each other.

[0128] The collection container assembly 200 also includes a tool connection module 224 having a tool connection interface 226. The tool connection interface 226 is configured to be coupled to a cleaning tool. The tool connection interface 226 includes: a tubular member 228 arranged concentrically with the collection container axis S; and two connection lugs 229 arranged on both sides of the tubular member 228. The tool connection module 224 also includes a connection flange 230 that is configured to be annular and surround the second end 232 of the collection container 201, which is configured on the other side of the first end 206 of the collection container 201. In addition, the connection flange 230 includes a bayonet lock or a bayonet lock component that is adapted to interact with an associated bayonet lock component configured on the collection container assembly 200 to couple the tool connection module 224 to the collection container assembly 200.

[0129] The collection container assembly 200 is transparent. This enables the operator to see the interior of the collection container assembly 200 and any suction medium collected therein. Alternatively, a viewing window can also be provided so that only a part of the collection container assembly 200 is transparent. For example, the collection container assembly 200 or the viewing window can include a transparent material, in particular a transparent polymer, such as, for example, acrylic glass, polycarbonate or polystyrene. As a supplement or alternative to the transparent design, an opaque material, in particular an opaque polymer, can also be provided.

[0130] A riser pipe 234 is arranged within the collection container assembly 200, but for the sake of simplicity of presentation, it is not shown in more detail and will be described in more detail below. The riser pipe 234 extends from the second end 232 in the direction of the first end 206 along the collection container axis S. However, along the collection container axis S, the riser pipe 234 is arranged at a certain distance from the first end 206. In other words, the length of the riser pipe 234 is approximately 60% to 90% of the length of the collection container assembly 200, preferably 85%. 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 together with an internal thread formed on the tool connection module 224.

[0131] The riser pipe 234 is used to introduce or suck in a secondary suction air flow together with the suction medium into the collection container 201. Since the riser pipe 234 is open at the end facing the first end 206, the secondary suction air flow can escape into the collection container 201 together with the suction medium. This design of the riser pipe 234 also helps to separate the suction medium from the secondary suction air flow and collect it in the collection container 201. Gravity pulls the suction medium towards the second end 232 of the collection container 201, causing it to collect there, while the light suction air flow can flow to the first end 206 and thus enter the adapter device 110.

[0132] In order to remove the suction medium from the collection container 201 or empty the collection container, the adapter device 110 can be separated from the collection container assembly 200. For this purpose, the snap lock (secondary connection interface) can be opened. Alternatively, the tool connection module 224 can also be separated from the collection container 201. In addition, the collection container 201 can include a drain opening, which can be opened or closed as required.

[0133] Figure 6 is 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. The sealing assembly 236 is configured to fluid-tightly couple the collection container 201 to the adapter device 110. In this example, the sealing assembly 236 is configured as an O-ring.

[0134] The collection container assembly 200 further includes a splash guard assembly 238 disposed at one end of the riser 234 oriented toward the first end 206 and may be coupled to the riser 234. The splash guard assembly 238 is configured to form a barrier to the suction medium drawn into the riser 234 by the secondary suction air flow, such that the suction medium does not flow out of the riser 234 along the direction of the first end 206 and the collection container axis S, but rather flows out in a radial direction. This facilitates separating the suction medium from the secondary suction air flow and collecting it in the collection container 201. In other words, it is possible to prevent the suction medium from leaving the riser 234 in the direction of the adapter device 110. The splash guard assembly 238 has a tubular portion 240 and a disk-shaped portion 242. The tubular portion 240 is configured to be coupled to the riser 234 by being pushed onto the riser 234. Other coupling methods are also conceivable, for example, coupling by mutually engaging threads. The disk-shaped portion 242 is configured to be closed along the direction of the collection container axis S and prevent the suction medium from passing through. The tubular portion 240 includes radially arranged channel openings 244 that allow the suction medium or the secondary suction air flow to pass through or flow out of the riser 234 in a radial direction.

[0135] The riser 234 can also be replaced by an elastic suction hose. In addition, the suction hose can also be guided outside the collection container assembly 200 and can enter the collection container 201 below the first end 206 through a connector. In this way, the secondary suction air flow can also be introduced into the collection container 201 below the first end 206, preferably at a certain distance from the first end 206.

[0136] A seal assembly 246 in the form of an O-ring is disposed between the riser 234 and the tool connection module 224.

[0137] Electric contacts 248 forming an electrical contact assembly 249 are configured on two connection lugs 229 of the tool connection module 224. When the cleaning tool is coupled to the tool connection module 224, the electric contacts are used to establish electrical contact with the cleaning tool. In this example, an electrical line 250 is also configured on the collection container 201. The electrical line can be arranged as an insulated conductor on the inner or outer side of the collection container 201. Alternatively, the electrical line 250 can be configured to be at least partially embedded in the material of the collection container 201. In addition, electric contacts (not shown here) can also be configured at the second end 232, and these electric contacts are configured to establish electrical contact between the electrical line 250 and the tool connection module 224 and its electric contacts 248. Similarly, electric contacts (not shown here) can also be configured at the first end 206, and these electric contacts are configured to establish electrical contact between the adapter device 110 and the electrical line 250. In this example, each electrical line 250 is directly connected to each electric contact 248.

[0138] Figure 7is a partial exploded view of the cleaning assembly 300. The collection container assembly 200 is shown in the assembled state. Thus, the tool connection module 224 is fixedly connected to the collection container 201 by means of a bayonet lock. In addition, the riser 234 with the splash guard assembly 238 is arranged inside the collection container 201 and is fixedly connected to the tool connection module 224. No cleaning tool is connected to the tool connection module 224. The two handle parts (Griffteil) 212, 214 are separated from the collection container 201, and the two handle parts can be connected to the corresponding recesses 209 on the lateral surface 208 of the collection container 201.

[0139] In the partial exploded view according to Figure 7 , the collection container assembly 200 is separated from the adapter device 110 and spaced apart from each other along the axis A or the collection container axis S. In addition, a suction protection device 252 is arranged between the adapter device 110 and the collection container assembly 200. The suction protection device 252 is arranged to be connected to the adapter device 110. More precisely, the suction protection device 252 can be connected to the tubular air inlet area 198. In different cases, the associated bayonet locking parts are configured for this purpose, but it can also be connected by means of a threaded connection or the like. Alternatively, the suction protection device 252 can be configured to be integral with the adapter device 110. According to the present invention, in the connected state and during operation of the adapter device 110, starting from the second turbine assembly 118, a secondary suction air flow is drawn out from the collection box assembly 200 via the tubular air inlet area 198 and thus via the suction protection device 252. The suction protection device 252 (not shown in detail) includes an internal air guiding assembly for supplying air from the collection container assembly 200 to the adapter device 110. The external shape of the suction protection device 252 is configured such that when connected to the tubular air inlet area 198, especially to the radial inner surface of the air inlet area 198, it is substantially in a fluid-tight state with the latter, so that the secondary suction air flow can only flow through the internal air guiding assembly of the suction protection device 252. When connected to the adapter device 110, the suction protection device 252 extends along the axis A. In addition, when the adapter device 110 is connected to the collection container assembly 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 certain distance from the inner surface of the collection container 201.

[0140] The aspiration protection device 252 (not shown in more detail) includes a closing body which, in its closed position, closes the air guiding assembly such that at least no liquid, preferably neither liquid nor air, can pass from the collection container assembly 200 to the adapter device 110, and in its open position releases the air guiding assembly to aspirate air from the collection container assembly 200. Furthermore, the aspiration protection device 252 includes a force actuator for generating an actuating force by which the closing body can be pushed to the closed position and / or the open position. Advantageously, the aspiration protection device 252 is controllable such that the open position and the closed position can be set according to a control signal. In particular, when performing a conventional aspiration operation by means of the adapter device 110, the closing body is in the open position. In particular, when the level of the aspiration medium in the collection container 201 exceeds a predetermined level and / or the aspiration operation of the adapter device 110 is terminated, the closing body should be in the closed position such that the aspiration medium cannot be transferred from the collection container assembly 200 to the adapter device 110 even in the case of pivoting, tilting, transportation, storage or the like. Preferably, the actuating force of the force actuator includes a magnetic force.

[0141] The aspiration protection device 252 is an optional component of the cleaning assembly 300. Thus, the cleaning assembly 300 may also be provided without the aspiration protection device 252.

[0142] Figure 8 is Figure 5 FIG. shows the cleaning assembly 300 coupled to an exemplary aspiration device 254. The aspiration device 254 is a conventional dry vacuum cleaner operable using household electricity, but any other type of aspiration device may also be provided. The aspiration device 254 includes a main body 256 which can be displaced relative to the floor surface by the rolling action of two wheels 258 and a front wheel (not shown) arranged at its rear lower end. All the wheels 258 project at least partially from the lower side of the main body 256 and separate the main body 256 from the ground. The main body 256 includes a carrying handle 260 arranged at its rear upper end and configured to be arcuate.

[0143] An elastic aspiration hose 262 is coupled to the main body 256. The aspiration hose 262 includes a handle portion 264 which can be grasped by an operator and includes a suction nozzle 266. The handle portion 264 and the suction nozzle 266 are configured to be substantially rigid. The suction nozzle 266 is coupled to the primary connection interface 130 of the adapter device 110 by a clamping action. For this purpose, the suction nozzle 266 is configured to be tubular, wherein the outer diameter of the suction nozzle 266 substantially corresponds to the inner diameter of the tubular portion of the primary connection interface 130 or is configured to be slightly smaller than the inner diameter of the tubular portion of the primary connection interface 130 to be at least partially inserted into the tubular portion of the primary connection interface 130.

[0144] The suction device 254 is configured to generate a negative pressure during operation. To this end, the suction device 254 has a turbine assembly (not shown in detail), which is configured to generate a negative pressure at the suction hose 262 and discharge the extracted air into the surroundings of the main body 256. The negative pressure generated at the suction hose 262 causes the primary suction air flow to finally flow from the surroundings of the adapter device 110 through the air passage opening 190 into the first turbine assembly 116 to drive the primary turbine impeller 150. Then, the suction air flow further passes through the primary connection interface 130 and exits the adapter device 110, thereby passing through the nozzle 266, the handle portion 264, and the suction hose 262 into the main body 256 of the suction device 254, and then flowing out of the turbine assembly and into the surroundings of the suction device 254.

[0145] Accordingly, the cleaning assembly 300 can be driven by means of the suction device 254. During operation of the cleaning assembly 300, the main body 256 can stand on the floor surface. The operator can freely move the cleaning assembly 300 and use it according to the cleaning requirements. Advantageously, the cleaning assembly 300 according to the invention enables the use of a suction device 254 configured as a dry vacuum cleaner to drive the cleaning assembly 300, thereby ensuring that no suction medium, in particular no liquid or moist air, can escape from the cleaning assembly 300, in particular from the secondary suction air flow, and enter the primary suction air flow and thus the suction device 254. For the sake of simplicity of presentation, the recess 209 is not shown anymore.

[0146] Figure 9 is an exemplary partial illustration of the adapter device 110, which has various suction devices or handle parts that can be coupled to the primary connection interface 130 and are shown spaced apart from and separated from the primary connection interface 130 according to the exploded view. On the one hand, Figure 8 the known suction hose 262 is shown as having a handle part 264 and a nozzle 266. In addition, an alternative suction device 268 in the form of a hand-held vacuum cleaner is also shown, as well as a third handle assembly 269 and a fourth handle assembly 271.

[0147] The aspiration device 268 includes a generally cylindrical body 270, and a handle assembly 272 configured to be grasped by an operator is disposed at the rear end of the body 270. The handle assembly 272 includes an upper handle member 274 that abuts against the body 270 and extends away from the body 270. In this example, the upper handle member 274 is configured in a cuboid shape, but it can also be circular or otherwise configured. Preferably, the upper handle member 274 is configured ergonomically so that it is comfortable for the operator to grasp. An arcuate lower handle member 276 extends below the upper handle member 274. The lower handle member 276 is configured to be integral with the rear end of the upper handle member 274 at one end thereof and integral with the body 270 at the other end thereof. The lower handle member 276 is generally L-shaped and is generally cube-shaped in shape, but it can also be circular or other shapes. Preferably, the lower handle member 276 is configured ergonomically so that it is comfortable for the operator to grasp.

[0148] The front end of the cylindrical body 270 is configured to be coupled to the primary connection interface 130 of the adapter device 110. For this purpose, a tubular portion (not shown in detail) is disposed inside the body 270, and the tubular portion is configured to be coupled to the tubular portion of the primary connection interface 130 in a manner similar to the nozzle 266 of the aspiration device 254. However, in addition, the body 270 further has an actuable connection assembly 275, and the connection assembly 275 includes actuable rockers 276, 278 that are configured to interact with the connection lugs 183, 185 of the first housing portion 126 of the adapter device 110. During coupling, the rockers 276, 278 engage with one end behind the corresponding connection lugs 183, 185, thereby preventing the aspiration device 368 from separating from the adapter device 110. However, the operator can actuate the second ends of the rockers 276, 278 such that the corresponding rockers 276, 278 no longer engage behind the corresponding connection lugs 183, 185, thereby releasing the aspiration device 268 to separate from the adapter device 110. The operation of such rockers will be further described below, and the rockers can be configured in one of the ways described below.

[0149] The body 270 further includes laterally disposed air passage openings 280 that are arranged to discharge the primary aspiration air flow generated by the primary connection interface 130 and the aspiration turbine disposed within the aspiration device 268 to the surrounding environment.

[0150] The aspiration device 268 is configured to be detachably coupled to a storage battery, and the storage battery provides electrical energy to drive the aspiration turbine. For this purpose, a socket can be provided on the aspiration device 268 to couple the storage battery to the aspiration device 268. A switch 282 is disposed on the upper side of the aspiration device 268 to energize or de-energize the aspiration turbine according to the position of the switch 282.

[0151] The suction device 268 is shown as an example and is intended to illustrate that the adapter device 110 or the cleaning assembly 300 can also be coupled and operated by a battery-operated compact suction device.

[0152] The third handle assembly 269 and the fourth handle assembly 271 are also configured to be coupled to the primary connection interface 130. To this end, they each have a coupling ring 284 that is configured to be coupled to the outer peripheral surface of the tubular portion of the primary connection interface 130. In addition, the operator can grasp the handle assemblies 269, 271. To this end, the third handle assembly 269 has a grasping body 286 that includes a grasping portion configured to resemble a parallelogram. The coupling ring 284 is configured to be integral with the grasping body 286 at its lateral surface. In addition, the third handle assembly 269 includes a rocker arm 288 that is configured to interact with the first connection lug 183 or the second connection lug 185 of the first housing portion 126 of the adapter device 110. On the one hand, the rocker arm 288 enables the third handle assembly 269 to be fixedly but releasably coupled to the adapter device 110. At the same time, in the coupled state, since the rocker arm 288 engages behind one of the connection lugs 183, 185 in a rotation-preventing manner, the third handle assembly 269 is prevented from rotating about the axis A.

[0153] When the term "rocker arm" is used, it can refer to a connection mechanism that is configured to couple and / or separate a handle assembly from an adapter device and / or a collection container assembly upon actuation.

[0154] The fourth handle assembly 271 has a grasping body 290 that is disposed below the coupling ring 284 and is configured to resemble a pistol grip and is at least partially held by the operator's hand. The fourth handle assembly 271 also has a rocker arm 292 that operates in a manner similar to the aforementioned rocker arm. The coupling ring 284 is configured to be integral with the grasping body 290.

[0155] Figure 10aIt is an exploded view of the third handle assembly 269. The third handle assembly 269 has a first housing part 294 and a second housing part 296. The first housing part 294 has half of the grip body 286 and half of the coupling ring 284. The second housing part 296 has the other half of the grip body 286 and the other half of the coupling ring 284. The second housing part 296 has four openings 298 on its inner side, and corresponding threaded inserts 302 can be inserted into these openings. In the inserted state, the threaded inserts 302 are fixedly coupled to the second housing part 296. The first housing part 294 includes four through holes 304, which are configured to receive corresponding screws 306 that can be screwed onto the corresponding threaded inserts 302 to fixedly couple the first housing part 294 to the second housing part 296.

[0156] At least the second housing part 296 has a receiving bolt 308, which is configured to receive the rocker arm 288 and support the rocker arm in a hinged manner. For this purpose, the rocker arm 288 has a through hole 310 in its central region, which is configured to receive the receiving bolt 308. In addition, the rocker arm 288 has a first leg 312 and a second leg 314. The two legs 312, 314 are configured to at least partially contact the second housing part when the second housing part 296 is in the attached state. The two legs 312, 314 are slightly bent. This enables the operator to actuate one end of the first leg 312 protruding from the second housing part 296 in the state where the first leg 312 is attached to the second housing part 296, so that at least the second leg 314 undergoes elastic deformation and is tensioned. This causes the lug 311 disposed between the two legs 312, 314 and in the region of the through hole 310 to shift around the longitudinal axis K of the positioning pin 308. Then, if the third handle assembly 269 is coupled to the adapter device 110, the lug 311 no longer engages behind the first connection lug 183 or the second connection lug 185 of the first housing part 126 of the adapter device 110, so that the third handle assembly 269 can be separated from the adapter device 110. This mechanism enables the third handle assembly 269 to be fixedly but releasably coupled to the primary connection interface 130 or the first housing part 126 of the adapter device 110.

[0157] To assemble the third handle assembly 296, first insert the threaded inserts 302 and the rocker arm 288 into the second housing part 296. Subsequently, assemble the first housing part 294 with the second housing part 296 such that the axis of the through hole 304 is aligned with the axis of the opening 298. Then, pass the screws 306 through the through holes 304 and screw them onto the threaded inserts 302.

[0158] Figure 10bIt is an exploded view of the fourth handle assembly 271. The fourth handle assembly 271 has a first housing part 316 and a second housing part 318. The first housing part 316 has half of the gripping body 290 and half of the coupling ring 284. The second housing part 318 has the other half of the gripping body 290 and the other half of the coupling ring 284. On the inner side of the second housing part 318, three receiving openings 320 are configured to receive the corresponding threaded inserts 322 as described above. The first housing part 316 has three through holes 324 configured to receive the corresponding screws 326 therein.

[0159] The two housing parts 316, 318 have corresponding receiving openings 328 configured to receive the corresponding ends of the guide pins 330 formed on the rocker arm 292. In this example, only the receiving opening 328 of the second housing part 318 can be identified. The two housing parts 316, 318 have corresponding openings 332. If the rocker arm 292 is inserted into the receiving opening 328, it is pivotally mounted about the axis K of the guide pin 330. In addition, one end of the first leg 334 then projects through the opening 332 and can be actuated by the operator. At the end of the second leg 336 of the rocker arm 292, a lug 338 is configured. As described above, the lug 338 is provided to engage behind one of the connecting lugs 183, 185, thereby fixedly but releasably coupling the fourth handle assembly 271 to the adapter device 110.

[0160] A lug 340 is also configured on the first leg 334 and is arranged to support the spring member 342 such that when the fourth handle assembly 271 is mounted on the first leg 334, the spring member 342 is pushed in the first rotational direction about the axis K. If the fourth handle assembly 271 is attached to the adapter device 110, the lug 338 is then pushed behind one of the connecting lugs 183, 185. To release the connection between the lug 338 and the corresponding connecting lug 183, 185, the operator grasps the end of the first leg 334 protruding from the two housing parts 316, 318 and pushes it in the second rotational direction opposite to the first rotational direction about the axis K. During this process, the operator must overcome the actuating force of the spring member 342.

[0161] To assemble the fourth handle assembly 271, first insert the threaded insert 322 into the receiving opening 320 of the second housing part 318. In addition, insert the spring member 342 into the receiving opening 344 formed in at least one of the housing parts 316, 318, wherein the spring member 342 engages with the lug 340 and is inserted into the second housing part 318 together with the rocker arm 292. Subsequently, assemble the first housing part 316 and the second housing part 318 together such that the axis of the through-hole 324 is aligned with the axis of the opening 328. Then, pass the screw 326 through the through-hole 324 and screw it onto the threaded insert 322.

[0162] Figure 11 FIG. is an illustration of a cleaning assembly 300 having exemplary cleaning tools 346, 348, 350. Each cleaning tool is configured to be attached to the tool connection interface 226. The cleaning assembly 300 is shown in an assembled state, and no suction device is coupled to the cleaning assembly.

[0163] The first cleaning tool 346 includes a floor unit 352, wherein a first brush 354 that rotates about a first brush axis B1 and a second brush 356 that rotates about a second brush axis B2 are provided on the floor unit. The two brush axes B1, B2 are arranged at a certain distance from each other. The brushes 354, 356 are configured to contact the floor surface to be cleaned during operation. The floor unit 352 further includes an arcuate suction rod assembly 356, wherein a suction lip 359 is arranged on the suction rod assembly 356, and the suction lip 359 is configured to contact the floor surface and suck away and collect the suction medium, in particular liquid, from the floor surface. The first cleaning tool 346 further includes a connection module 358 configured to be coupled to the tool connection module 224. To this end, the connection module 358 includes a tubular portion 360 configured to be coupled to the tubular member 228. More specifically, the tubular portion 360 is slid onto the tubular member 228. The tubular portion 360 further includes a second end coupled to the suction hose 362. The suction hose 362 connects the tubular portion 360 to the suction rod assembly 356 such that during operation, a secondary suction air flow can flow from the suction rod assembly 356 through the suction hose 362 and the tubular portion into the tubular member 228 of the tool connection interface 226 to suck in the suction medium. To this end, preferably, a suction opening is configured on the suction rod assembly 356 near the floor surface, and the secondary suction air flow with the suction medium can enter the suction hose 362 through the suction opening.

[0164] The connection module 358 is coupled to the floor unit 352 by means of an adapter assembly 364. The adapter assembly 364 has a first pivot axis SA1 and a second pivot axis SA2 that are vertically aligned with each other and spaced apart from each other. The adapter assembly 364 enables the connection module 358 and, for example, a container assembly 200 coupled thereto to be pivotally arranged relative to the floor unit 352. This enables easy manipulation of the cleaning assembly 300.

[0165] The second cleaning tool 348 also includes the connection module 358 as described above, wherein the squeegee head 366 is provided on the tubular portion 360 rather than on a suction hose that is integrally configured with the tubular portion 360 or the connection module 358. The squeegee head 366 is configured to be generally in the shape of an equilateral triangle with a smaller thickness, wherein the lower side of the triangle forms a suction lip 368 having a suction opening 370. The squeegee head 366 is hollow inside or configured with at least one larger or a plurality of smaller air flow channels that lead into the suction opening 370, such that a secondary suction air flow can enter the suction opening from the suction lip 368 and pass through the squeegee head 366 to the tubular portion 360. The suction lip 368 can be formed of 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 medium into the suction opening 370.

[0166] 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 the first cleaning roller can be driven to rotate. The second cleaning roller 346 has a second roller axis W2 about which the second cleaning roller can be driven to rotate. The two roller axes W1, W2 are arranged parallel to each other and are spaced apart from each other. If the third cleaning tool 350 is placed on the floor surface, the roller axes W1, W2 are substantially aligned parallel to the floor surface. The cleaning rollers 374, 376 may include brushes and / or vanes. The cleaning rollers 374, 376 contact the floor surface during operation. The third cleaning tool 350 further includes the connection module 358 as described above. Here, the connection module 358 includes a tubular portion configured to be coupled to the tubular member 228. More specifically, the tubular portion 360 is slid onto the tubular member 228. The connection module 358 is further coupled to the floor unit 372 by a pivot joint 378. The pivot joint 378 has a pivot axis SA3 that is parallel to and spaced apart from the roller axes W1, W2. The pivot joint 378 enables the connection module 358 to pivot relative to the floor unit 372 about the pivot axis SA3. A housing 380 is formed around the tubular portion 360 on the connection module 358. The tubular portion 360 is coupled to a suction hose 382 which in turn couples the connection module 358 adjacent the pivot joint 378 to the floor unit 372. The suction hose 382 is configured to discharge a secondary suction air flow from the floor unit 372 and supply it to the tubular portion 360. A motor drive is configured in the floor unit 372 and is configured to drive the two cleaning rollers 374, 376 to rotate about the roller axes W1, W2. For this purpose, the motor drive is coupled to the cleaning rollers 374, 376 by a belt assembly which, in this example, is formed outside the housing of the floor unit 350. Of course, the belt assembly may also be formed inside the housing. Additionally, other mechanical couplings may be provided to replace the belt assembly.

[0167] Figure 12a and Figure 12bFIG. 0 is a detailed illustration of the connection module 358 of the first cleaning tool 346, which, among other functions, serves to illustrate the mechanism by which the connection module 358 can be coupled to the tool connection interface 226. As described above, the connection module 358 has a tubular portion 360. In addition, the connection module 358 has a first receiving opening 384 and a second receiving opening 386. The two receiving openings 384, 386 are arranged on opposite sides of the tubular portion 360 and form a cubic recess in the connection module 358. The connection module 358 further includes a locking bracket 388, which is configured as a separate component of the connection module 358 but is also coupled to the connection module 358. The locking bracket 388 has corresponding hooks 390 at its respective ends, which project into the receiving openings 384, 386 in the case where the locking bracket 388 is not actuated. Not being actuated means that the locking bracket is biased in a first direction R1 due to a spring assembly / spring element (not shown in detail), and the hooks 390 thus project into the receiving openings 384, 386, but can still overcome the spring force of the spring assembly and be displaced relative to the remaining connection module 358 in a direction opposite to R1. For this purpose, the operator presses the locking bracket 388 in a direction opposite to R1 and displaces the locking bracket 388 in a direction opposite to R1. Such displacement causes the hooks 390 to disengage from the receiving openings 384, 386 in a direction opposite to R1, thereby releasing the hooks. The two receiving openings 384, 386 are configured to receive corresponding connection lugs 229 arranged on the tool connection interface 226, where, in the coupled state, the hooks 390 engage through corresponding through-holes 410 of the corresponding connection lugs 229. In this way, the hooks 390 produce a locking effect that prevents the connection module 358 from separating from the tool connection interface 226 in the case where the locking bracket 388 is not actuated.

[0168] The connection module 358 has an upper housing portion 392 and a lower housing portion 394, where through-holes 396 arranged on the lower housing portion 394 receive screws (not shown), which are configured to be screwed into screw-in areas 398 arranged on the upper housing portion 392 to fixedly couple the upper housing portion 392 and the lower housing portion 394 together. If the upper housing portion 392 is coupled to the lower housing portion 394, the locking bracket 388 is clamped between the two housing portions against the spring force of the spring element. Therefore, the locking bracket 388 cannot be removed from the remaining connection module 358 in the case where the housing portions 392, 394 do not separate from each other.

[0169] The tubular portion 360 has guiding protrusions 400 on its inner surface that extend along the longitudinal axis LA1 of the tubular portion 360. The guiding protrusions 400 are configured to engage guiding grooves arranged on the outside of the tubular portion 228.

[0170] 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 intended to contact a corresponding one of the electrical contacts 248 in a state coupled to the tool connection interface 226 to establish electrical contact therewith. The electrical contact plate 402 is coupled to a corresponding electrical circuit 406. For example, the electrical circuit 406 is in turn coupled to at least one electric drive to provide power thereto. An electric drive may be provided to drive the cleaning roller 374 or brush to rotate.

[0171] The electrical contact plates 402 , 404 can be omitted in the connection module 358 of the second cleaning tool 348 , since the second cleaning tool 348 has no drivable tool in the present example.

[0172] The connection module 358 of the third cleaning tool 350 is basically configured on the side facing the tool connection interface 226 in the same manner as the first cleaning tool 346, but also has the above-mentioned housing 380. The housing 380 can form a locking bracket 388. Alternatively, the connection module 358 of the third cleaning tool 350 can have only a tubular portion 360 and a housing 380 on the side facing the tool connection interface 226, wherein when the tubular portion 360 is pushed onto the tubular member 228, the tubular portion 360 and the tubular member 228 achieve a clamping effect.

[0173] Figure 13 Detailed view of one embodiment of the tool connection module 224. The tool connection module 224 is coupled and fixedly connected to the collection container 201. The guide groove 408 is configured on the tubular member 228 and extends along the axis A on the outer surface of the tubular member 228. The guide groove 228 is configured to receive the guide protrusion 400.

[0174] The tool connection module also has two connection lugs 229, which protrude from the rear side of the tool connection module 224 in the direction of the axis A. The tool connection module 224 is configured in the form of a plate and has corresponding through holes 410. The through holes 410 are used to receive the hooks 390 described above.

[0175] In addition, the electrical contact 248 is arranged at the through-hole 410. The electrical contact 248 is also arranged at least partially on the lower side of the connecting lug 229. In addition, the electrical contact 248 has a corresponding receiving extension 412, onto which a corresponding plug assembly 414 (in the present example in the form of a flat plug sleeve) is pushed. Each plug assembly 414 is conductively connected to a respective electrical line 250. Each electrical line 250 is fixed to the rear part of the tool connection module 224 in the region of the respective receiving extension 412 by a respective line retainer 416. For this purpose, the line retainer 416 has a respective clamping jaw that clamps the respective line 250. Preferably, the electrical line 250 is intended to provide a voltage of 12 V, 24 V or 48 V.

[0176] The electrical line 250 and the associated structural features are optional. On the other hand, additional electrical lines can also be provided in order to establish electrical contact with the cleaning tool or to supply current to the cleaning tool.

[0177] The power supply interface for establishing electrical contact with the power supply can be arranged on the collection container assembly 200 or on the adapter device 110. Then, preferably, the power supply interface is coupled to the electrical line 250. The power supply interface can include a retainer for receiving the power supply. The retainer can be configured to receive a storage battery.

[0178] The features described for a specific embodiment can also be provided individually for the cleaning assembly, in particular for the adapter device. This also applies to the features described for the cleaning assembly. These features can also be provided in the adapter device and vice versa.

Claims

1. A cleaning assembly (300) for sucking a suction medium by means of a suction device (254 ； 268), the cleaning assembly comprising: - An adapter device (10; 110), the adapter device comprising: A first turbine assembly (12; 112), the first turbine assembly being drivable by a primary suction air flow of the suction device (254; 268); A second turbine assembly (18; 118), the second turbine assembly being drivable to generate a secondary suction air flow for sucking the suction medium; and A transmission assembly (20; 120), the transmission assembly being coupled to the first turbine assembly (12; 112) and the second turbine assembly (18; 118), wherein the driving of the first turbine assembly (12; 112) by the primary suction air flow can be used via the transmission assembly (20; 120) to drive the second turbine assembly (18; 118) to generate the secondary suction air flow; and - At least one collection container assembly (41), the collection container assembly being configured to separate and collect the suction medium sucked in by the secondary suction air flow from the secondary suction air flow.

2. The cleaning assembly (300) according to claim 1, wherein, The collection container assembly (41) is configured to be fixedly coupled to the adapter device (10; 110) or to be able to be fixedly coupled to the adapter device (10; 110).

3. The cleaning assembly (300) according to claim 1 or 2, wherein, The collection container assembly (41) is substantially tubular.

4. The cleaning assembly (300) according to any one of the preceding claims, wherein, The collection container assembly (41) at least partially comprises a transparent material.

5. The cleaning assembly (300) according to any one of the preceding claims, wherein, The collection container assembly (41) comprises an observation window.

6. The cleaning assembly (300) according to any one of the preceding claims, wherein, The collection container assembly (41) and / or the adapter device (10; 110) are configured as a load-bearing structure.

7. The cleaning assembly (300) according to any one of the preceding claims, wherein, The collection container assembly (41) and / or the adapter device (10; 110) are configured to be position-adjustable, in particular tiltable.

8. The cleaning assembly (300) according to any one of the preceding claims, the cleaning assembly further comprising at least one handle assembly (202; 204; 269; 271), the handle assembly being configured to be held by an operator and being designed to be fixedly coupled to the adapter device (10; 110) and / or the collection container assembly (41) or to be able to be fixedly coupled to the adapter device (10; 110) and / or the collection container assembly (41).

9. The cleaning assembly (300) according to claim 8, wherein, The handle assembly (202; 204; 269; 271) includes a connection mechanism that can be actuated for coupling, and the connection mechanism is configured to couple the handle assembly (202; 204; 269; 271) to the adapter device (10; 110) and / or the collection container assembly (41) and / or decouple the handle assembly (202; 204; 269; 271) from the adapter device (10; 110) and / or the collection container assembly (41).

10. The cleaning assembly (300) according to any one of the preceding claims, the cleaning assembly 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) through the tool connection interface (226).

11. The cleaning assembly (300) according to claim 10, wherein, the tool connection interface (226) includes an electrical contact assembly (249) configured to establish electrical contact with the cleaning tool (346; 348; 350).

12. The cleaning assembly (300) according to any one of claims 10 or 11, wherein, the tool connection interface (226) is configured to couple the cleaning tool (346; 348; 350) in a substantially rigid manner.

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

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

15. The cleaning assembly (300) according to claim 14, wherein, the primary connection interface (130) is configured to couple the suction device (254; 268) to the adapter device (10; 110) in a substantially rigid manner.

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