CN108283471B

CN108283471B - Independent regeneration unit for regenerating cleaning elements

Info

Publication number: CN108283471B
Application number: CN201810021532.1A
Authority: CN
Inventors: G.哈克特; C.霍尔兹
Original assignee: Vorwerk and Co Interholding GmbH
Current assignee: Vorwerk and Co Interholding GmbH
Priority date: 2017-01-10
Filing date: 2018-01-10
Publication date: 2021-07-20
Anticipated expiration: 2038-01-10
Also published as: TW201840373A; CN108283471A; DE102017100368A1

Abstract

The invention relates to a self-contained regeneration unit (1) for regenerating a cleaning element (2), wherein the regeneration unit (1) has a housing (3) with a regeneration chamber (4) for at least partially enclosing the cleaning element (2). In order to achieve regeneration of the cleaning element (2) independently of the interaction of the wet cleaning device, it is proposed that a fresh liquid distribution device (11) is provided which is arranged in the fluid connection (10) between the regeneration chamber (4) and the fresh liquid chamber (9).

Description

Independent regeneration unit for regenerating cleaning elements

Technical Field

The invention relates to a self-contained regeneration unit for regenerating or for cleaning a cleaning element, wherein the regeneration unit has a housing with a regeneration chamber for at least partially enclosing the cleaning element, and further wherein the regeneration chamber (4) has a rotatable spindle (6) with a receiving region (8) formed on a circumferential surface (7) of the spindle (6) for rotationally fixed connection to the cleaning element (2).

The invention also relates to a cleaning element for a wet cleaning device, namely a cleaning roller, comprising a roller core and a roller sleeve.

The invention also relates to an assembly of a regeneration unit and a cleaning element.

Background

Regeneration units for regenerating cleaning elements are known in the prior art. Here divided into a non-independent regeneration device and an independent regeneration unit.

For example, DE 10229611B 3 discloses a wet cleaning device with a wiping body which is drivable in rotation about an axis of rotation, wherein cleaning liquid is taken out of a tank and sprayed onto the surface of the wiping body by means of nozzles arranged in the direction of the axis of rotation of the wiping body. The wetted wiping body is thereby guided over the surface to be cleaned during the wiping operation, wherein the wiping body receives dirt from the surface to be cleaned. In order to regenerate the wiping body, the wiping body is lifted off the surface to be cleaned, surrounded by the housing of the wet cleaning device and sprayed with unused cleaning liquid. The wiping body is rotated in order to drain the cleaning liquid and dirt from the wiping body, impinge on the inside of the housing and transport it into a collecting container of the wet cleaning appliance.

In addition, separate regeneration units are known in addition to wet cleaning devices with integrated regeneration devices. The separate regeneration unit is constructed in the form of a container which contains the cleaning liquid and into which the cleaning elements of the wet cleaning device can be immersed.

For example, EP 1955639B 1 discloses an assembly of a brush and a liquid container, wherein the brush has a rotary drive configured as a rotary gyro drive, which causes a rotation of a cleaning element of the brush when the brush is pressed against a partial region of the liquid container. Here, the cleaning element rotates about the longitudinal axis of the brush. In order to wet the cleaning element with the cleaning liquid, the cleaning element is immersed in the liquid located in the liquid container. The wet cleaning element is then accelerated by means of the rotary drive, wherein the soiled cleaning liquid flows back into the other liquid volume of the liquid container.

Disclosure of Invention

Based on the prior art described above, the object of the present invention is to provide a self-contained regeneration unit which enables the regeneration of cleaning elements without the involvement of a wet cleaning device or other additional auxiliary means.

In order to solve the above-mentioned problem, according to the invention, a self-contained regeneration unit is proposed, wherein a fresh liquid distribution device (11) is provided which is arranged in a fluid connection (10) between the regeneration chamber (4) and the fresh liquid chamber (9).

Preferably, the cleaning element is inserted onto the rotary shaft by inserting the cleaning element onto the rotary shaft with a preferably cylindrical recess such that the cleaning element is arranged coaxially with respect to the rotary shaft. When the rotary shaft rotates, the cleaning elements also rotate correspondingly, wherein liquid and dirt located in or on the cleaning elements are centrifuged and, for example, thrown against the wall of the regeneration chamber. The circumferential surface of the spindle has a receiving region, on which the cleaning element is held in a rotationally fixed manner, so that a relative rotation of the cleaning element with respect to the spindle does not occur during a rotation of the spindle. For this purpose, the circumferential surface can have a fixing element which prevents a relative rotation of the cleaning element with respect to the rotational axis. These fixing elements can be, for example, projections, in particular grooves and/or knots, which engage in the cleaning elements, or also detent means or the like. In order to be able to limit the axial displacement of the cleaning elements on the spindle, the circumferential surface of the spindle also has, for example, end stops for the end regions of the cleaning elements. The separate regeneration unit operates without the aid of a wet cleaning device, so that the regeneration of the cleaning elements takes place only by means of the regeneration unit. In particular, a plurality of cleaning elements can thus be regenerated one after the other without the cleaning elements having to be connected to a wet cleaning device for this purpose.

For an advantageous connection to the regeneration unit, in particular to the rotary shaft, the cleaning element preferably has a cylindrical shape and has a central recess, through which the cleaning element can be inserted onto the rotary shaft. The insertion of the cleaning elements onto the rotary shaft is carried out manually, for example by a user, preferably also directly from the wet cleaning apparatus onto the regeneration unit. In particular, the wet cleaning device can be arranged on the regeneration unit in such a way that the cleaning elements can be transferred directly from the rotational axis of the wet cleaning device to the rotational axis of the regeneration unit. For this purpose, in particular, a spring mechanism or a motor-driven transfer mechanism can be provided.

It is also proposed that the regeneration unit has a dirt collection chamber and/or a fresh liquid chamber which are configured separately from the regeneration chamber and have a fluid connection to the regeneration chamber. The dirt collection chamber and/or the fresh liquid chamber are thus configured separately from the regeneration chamber, so that fresh liquid and/or dirty liquid is not stored in the regeneration chamber and the cleaning element to be regenerated does not penetrate into it. The regeneration chamber has no stored liquid volume which could contact the cleaning element or dirt located therein, except for residual liquid which is located therein if necessary. In contrast to the prior art, therefore, no contamination of the stored liquid, in particular of the fresh liquid, occurs, with the fresh liquid being constantly contaminated in the prior art. Rather, only the portion of liquid that is currently required for regenerating the cleaning element and/or the portion of liquid that is still present in or on the cleaning element is always located inside the regeneration chamber. The fresh liquid is stored separately in the fresh liquid chamber, so that a new volume portion of fresh liquid can always be transferred into the regeneration chamber for regenerating the cleaning element. Thus, the reverse pollution of the surface to be cleaned can be effectively avoided. Furthermore, the dirt collection chamber is also designed separately from the regeneration chamber and the fresh liquid chamber, so that the dirty liquid can be treated separately, in particular via the domestic waste water connection. The fresh liquid chamber can also advantageously be connected to the domestic fresh liquid connection, so that fresh liquid can always be replenished into the fresh liquid chamber. It is also possible to provide that the dirt collection chamber and the fresh liquid chamber are connected via a flow path to a treatment device, wherein the treatment device filters out dirt located in the dirt collection chamber and only transfers the cleaned liquid into the fresh liquid chamber. Preferably, a liquid pump is arranged in the fluid connection between the fresh liquid chamber and the regeneration chamber, said liquid pump being able to convey fresh liquid from the fresh liquid chamber to the regeneration chamber. Alternatively, it can also be provided that, in relation to the usual orientation of the regeneration unit during the regeneration operation, the fresh liquid chamber is arranged above the regeneration chamber, so that fresh liquid can flow into the regeneration chamber only as a result of the hydrostatic pressure, preferably in the presence of a valve arranged in the fluid connection, which can close and release the fluid connection. It is likewise possible to provide the dirt collection chamber and/or the regeneration chamber with a liquid pump which sucks off and/or pumps dirt liquid from the regeneration chamber. Alternatively, the dirt collection chamber can preferably also be arranged below the regeneration chamber (relative to the usual orientation of the regeneration unit during regeneration operation) so that the dirty liquid can flow out of the regeneration chamber into the dirt collection chamber due to gravitational energy and can be discharged from the regeneration unit starting from the dirt collection chamber advantageously with the aid of a liquid pump. In particular, a liquid pump can be provided which conveys the dirty liquid out of the dirty collecting chamber or regeneration unit and in this way feeds it to an external treatment device.

According to one embodiment, it can be provided that the fresh liquid chamber and/or the dirt collection chamber and/or the regeneration chamber is removable from the regeneration unit. The fresh liquid chamber and/or the dirt collection chamber and/or the regeneration chamber can thus be cleaned particularly advantageously. In addition, the user can thus fill the fresh liquid chamber with fresh liquid outside the regeneration unit, that is to say, for example, on a wash basin. The dirt collection chamber can likewise be emptied in this way, for example, on a wash basin.

In particular, it is preferred that the fresh liquid distribution device is designed in conjunction with the liquid pump in such a way that the wetting of the cleaning element located in the regeneration chamber can be set specifically as a function of the manner and/or degree of soiling. In particular, the regeneration unit can have a detection device, which is designed to detect the degree of soiling of the cleaning element. In particular, the degree of soiling may be determined from the soiling of the soiled liquid flowing from the regeneration chamber into the soil collection chamber. The fresh liquid distribution device or the liquid pump is preferably connected to a control device of the regeneration unit, so that the amount of fresh liquid transferred into the regeneration chamber can be controlled.

The fresh liquid distribution device particularly preferably has a line system which opens into the regeneration chamber at different regions.

In this respect, it is proposed that the fresh liquid distribution device has a plurality of outlet openings, the liquid outlet directions of which are directed at different circumferential partial regions of the rotational axis. This embodiment achieves an optimal and uniform wetting of the cleaning element over its circumferential surface. The outlet openings of the fresh liquid distribution device are arranged, for example, in an overlapping manner with respect to the longitudinal extent of the rotary shaft, so that the cleaning elements inserted onto the rotary shaft can be wetted completely with liquid in the circumferential direction by the rotary motion. Due to the gravitational force acting on the fresh liquid, a downward flow of fresh liquid in the direction of the longitudinal extension of the cleaning element takes place, so that the entire circumferential surface of the cleaning element is wetted with liquid and thereby also regenerated. It is particularly preferred that each discharge opening is assigned a nozzle which widens the liquid stream emerging from the discharge opening in such a way that it sprays not only the circumferential surface of the cleaning element but rather a defined section of the cleaning element in the direction of its longitudinal extent. The type, shape and/or size of the nozzles or the outlet openings can be selected in conjunction with the delivery pressure of the liquid pump in such a way that, for example, the penetration depth of the fresh liquid into the material of the cleaning elements can be varied. In particular, the flow rate, which has an influence on the penetration depth of the fresh liquid into the material of the cleaning element and thus also on the cleaning result, can be varied, for example, by the size of the outlet opening.

In particular, it may be provided that the fresh liquid chamber and/or the fresh liquid distribution device are/is provided with a heating device for heating the liquid located therein. The heating device may be arranged, for example, in or at a wall of the fresh liquid chamber and/or the fresh liquid distribution device. The heating device is preferably configured for heating the liquid to above 60 ℃ so that bacterial contamination of the cleaning element can be removed during the regeneration process. The heating means may be, for example, a resistive heating element.

Provision may also be made for the regeneration unit to have a motor with a drive connection to the rotary shaft. The rotary shaft of the regeneration unit is thus driven by an electric motor, wherein a transmission can be arranged in the middle, if necessary, in order to change the rotational speed of the rotary shaft. Alternatively, it can be provided that the rotary shaft can be rotated manually, for example by means of a crank which can be actuated by a user of the regeneration unit.

It can be provided that the regeneration unit has a battery for supplying the motor and/or the liquid pump and/or the heating device. This makes it possible to establish the regeneration unit in the environment completely independently of the supply of the domestic power supply system. The accumulator can supply a plurality of different electrical and electronic devices of the regeneration unit, and preferably also a motor for rotating the shaft, a liquid pump of the fresh liquid distribution device, a heating device for heating the fresh liquid for the regeneration process, or other devices. Furthermore, the regeneration unit can also have an electrical line for connection to a domestic power supply, via which, for example, the battery can be charged repeatedly. Furthermore, it can be provided that the regeneration unit is connected to a base or has a removable base, which has an electrical line connected to a charging control for the battery. Since the regeneration unit is independent of the position of the socket when operating with the battery, the regeneration unit can be used particularly flexibly, for example in a house, in a vehicle, in a garden.

It can also be provided that the regeneration unit has a scraping device arranged in the regeneration chamber, which scraping device is designed to extend in the longitudinal direction of the rotational shaft and has at least one active element directed radially toward the rotational shaft. The active element is designed to effect mechanical cleaning of the cleaning element during the passage of the cleaning element past the active element during rotation of the rotary shaft, in order to mechanically treat the fibers or surface material of the cleaning element and to discharge dirt or dirty liquid therefrom. The scraping device is arranged inside the regeneration chamber in such a way that the active element contacts the cleaning element, preferably in the material of the cleaning element. The regeneration of the cleaning elements is therefore not only brought about by centrifugal separation of the dirt or dirty liquid due to the centrifugal forces acting during rotation, but also by means of mechanical treatment. The active element can have brushes and/or scraping edges or the like, which can be configured flexibly or rigidly. It can also be provided that the wiper device is connected in a rotationally fixed manner to the rotatable additional shaft, so that the wiper device or the active element rotates relative to the regeneration chamber or the cleaning element arranged therein. The scraping means may for example be rotated and/or oscillated in the same or in opposite directions relative to the axis of rotation. In particular, provision can be made for the wiper device to be provided with a drive of the electric motor, which causes the wiper device to rotate and/or pivot. Alternatively, it can also be provided that the wiper device is passively rotated together with the rotation of the spindle or the cleaning element due to the friction fit, wherein the direction of rotation of the wiper device is in this case opposite to the direction of rotation of the spindle.

In addition to the above described regeneration unit, the invention also proposes a cleaning element for a wet cleaning device, wherein the cleaning element is a cleaning roller with a central recess, a roller core and a roller sleeve, wherein the roller core has a spacer fabric and wherein the roller sleeve has a microfiber layer. Such a combination of materials is prone to contain dirt and dirty liquid during the cleaning process of the wet cleaning device. On the other hand, the material may be susceptible to giving off dirt or dirty liquid during regeneration of the cleaning element. Furthermore, the suggested materials dry quickly. The spacer fabric of the roller core may in particular also be provided with a hydrophobic coating, for example with PTFE (polytetrafluoroethylene). This achieves an optimal regeneration when the cleaning element is rotated. The central recess is used to connect the cleaning element to the spindle of the regeneration unit. The cleaning element particularly preferably has a cylindrical cavity and has a connecting means which makes it possible to connect the cleaning element to the receiving region of the spindle in a rotationally fixed manner.

Finally, the invention also proposes an assembly of a regeneration unit of the type described above and a cleaning element of the type described above, wherein the cleaning element can be connected to the rotary shaft of the regeneration unit in a rotationally fixed manner. In particular, the regeneration unit and the cleaning element are configured with respect to one another in terms of shape and size, i.e. the cleaning element arranged on the rotary shaft inside the regeneration chamber is rotated relative to the scraping device, so that the above-mentioned mechanical cleaning of the cleaning element can take place. Furthermore, the features and advantages described in the context of the regeneration unit or the cleaning element also apply to the assembly.

Drawings

The invention is further illustrated below with reference to examples. In the drawings:

figure 1 shows an individual reproduction unit according to the invention in a perspective view,

figure 2 shows the regeneration unit in longitudinal section,

figure 3 shows the regeneration unit in cross-section,

figure 4 shows the regeneration unit in an exploded view,

figure 5 shows a longitudinal cut through the regeneration unit with the cleaning elements arranged therein,

figure 6 shows the regeneration unit according to figure 5 in cross-section,

fig. 7 shows a perspective view of a regeneration unit according to a further embodiment.

Detailed Description

Fig. 1 shows a separate regeneration unit 1 in a perspective view from the outside, wherein the inner region of the regeneration unit 1 is likewise visible. Fig. 2 shows a longitudinal section through the regeneration unit 1.

The reproduction unit 1 basically has a cylindrical shape. The regeneration unit 1 has a base 26, which is configured below the regeneration chamber 4 for accommodating the cleaning element 2 in the orientation of the regeneration unit 1 shown during operation of the regeneration unit 1. The base 26 is provided with a control device 27, the control device 27 also controlling the energizing of the regeneration unit by co-action with the electric cord 24 and the plug 25. A liquid pump 16 is also arranged in the base 26, the liquid pump 16 being used to convey fresh liquid from the fresh liquid chamber 9 into the regeneration chamber 4. A fresh liquid distribution means 11 is located between the fresh liquid chamber 9 and the regeneration chamber 4, the fresh liquid distribution means 11 providing a fluid connection. The fresh liquid distributor 11 has a plurality of outlet openings 12 which open into the regeneration chamber 4, wherein nozzles are assigned to the outlet openings, which spray fresh liquid into the regeneration chamber 4 in a liquid discharge direction 13.

Located in the regeneration chamber 4 is a shaft 6 which is rotatable by means of a motor 15 of the regeneration unit 1. Two receiving areas 8 for the cleaning elements 2 to be connected to the spindle 6 are located on the circumferential surface 7 of the spindle 6. The receiving region 8 has ribs 31 in the direction of the longitudinal extension of the shaft 6, which ribs serve to hold the cleaning element 2.

Inside the shaft 6, a battery 21 is arranged, which can be used for autonomous operation of the regeneration unit 1. In the case of energy supply by the battery 21, the regeneration unit 1 need not be connected to the domestic power supply via the electrical line 24 and the plug 25.

Inside the regeneration chamber 4, on the inner wall of the housing 3 of the regeneration unit 1, a scraping device 17 is arranged. Said scraping means 17 extend parallel to the longitudinal extension of the shaft 6. The scraping device 17 has an active element 18, here a scraping edge, which is formed along approximately the entire longitudinal extension of the shaft 6. The scraper 17 projects from the inner wall of the housing 3 into the regeneration chamber 4, i.e. in the direction of the axis of rotation 6.

The regeneration unit 1 is provided with a fresh liquid chamber 9 which is removable from the housing 3 and a dirt collection chamber 5 which is removable from the housing 3. The fresh liquid chamber 9 has a fresh liquid connection 22. The dirt collection chamber 5 has a dirt liquid connection 23. In the region of the fresh liquid connection 22 or the dirty liquid connection 23, a handle 32 is formed on the fresh liquid chamber 9 or the dirty collecting chamber 5.

The regeneration unit 1 has a regeneration chamber 4, a dirt collection chamber 5 and a fresh liquid chamber 9, which are formed separately from one another. These chambers are in turn connected to one another in such a way that fresh liquid can pass from the fresh liquid chamber 9 into the regeneration chamber 4, where regeneration of the cleaning element 2 connected to the rotor shaft 6 takes place and the dirty liquid collected there is conveyed from the regeneration chamber 4 into the dirt collection chamber 5. In this case, the liquid enters the regeneration chamber 4 via a fluid connection 10 formed between the fresh liquid chamber 9 (or the liquid pump 16) and the regeneration chamber 4. The heating device 14 associated with the fresh liquid chamber 9 can heat the fresh liquid located in the fresh liquid chamber 9, for example to a temperature of more than 60 ℃, in order to kill possible bacteria, fungi and the like inside the fresh liquid. A fluid connection 10 is also located between the regeneration chamber 4 and the dirt collection chamber 5, said fluid connection being configured below the regeneration chamber 4. The dirty liquid is discharged from the regeneration chamber 4 into the dirty collecting chamber 5 via the fluid connection 10 only as a result of the hydrostatic pressure. In contrast, a liquid pump 16 is used to convey fresh liquid from the fresh liquid chamber 9 into the regeneration chamber 4. The liquid pump 16 is either powered by an electric line 24 and a household connection, or alternatively is operated autonomously by means of an accumulator 21.

Fig. 3 shows a cross section of the regeneration unit 1 along line III according to fig. 2. The drive mechanism of the regeneration unit 1 for the rotation of the shaft 6 inside the regeneration chamber 4 can be seen. The drive mechanism comprises a gear mechanism with a toothed ring 28 formed on the inner wall of the hollow shaft 6 and a gear 29 engaging with the toothed ring 28. The gear 29 is arranged inside the shaft 6 and has a drive connection with respect to the motor 15. When the motor 15 is operated, the gear 29 rotates and the rotary shaft 6 rotates due to the engagement with the ring gear 28. On the outer side of the rotary shaft 6, a plurality of guide struts 30 are formed, which are connected on the one hand to the rotary shaft 6 in a rotationally fixed manner and on the other hand follow the guide, for example by sliding connections, on the inner wall of the regeneration chamber 4. Thereby ensuring the centering of the shaft 6 inside the regeneration chamber 4.

Fig. 4 shows an exploded view of the regeneration unit 1, in which the components that can be detached from the regeneration chamber 4 are shown. Furthermore, separable from the regeneration chamber 4 are here the fresh liquid chamber 9 with the fresh liquid distribution means 11, the dirt collection chamber 5, the base 26 and the scraping means 17. In the base 26 a liquid pump 16 and a control device 27 are arranged. The control device 27 is used to control the liquid pump 16, the motor 15 and the heating device 14.

Fig. 5 shows a regeneration unit 1 with a cleaning element 2 arranged in a regeneration chamber 4. The cleaning element 2 is a cleaning roller of a wet cleaning device, which has a roller core 19 and a roller sleeve 20. The roll core is made of a spacer fabric that provides a plurality of cavities for receiving liquid. The spacer fabric is additionally coated hydrophobically with PTFE. The roller sleeve 20 is a microfiber layer which can receive dirt and dirty liquid during cleaning by means of the cleaning element 2. The cleaning element 2 is of cylindrical design and is provided with a likewise cylindrical recess in which the spindle 6 can be accommodated. During the regeneration operation of the regeneration unit 1 shown in fig. 5, the cleaning element 2 is held on the receiving region 8 of the spindle 6. For this purpose, the ribs 31 formed on the receiving region 8 engage in corresponding grooves (not shown) of the cleaning elements 2. Thereby forming a rotationally fixed connection between the cleaning element 2 and the spindle 6.

In the state in which the cleaning element 2 is accommodated on the shaft 6, the active element 18 of the scraping device 17 engages into the fibres of the roller shell 2. During the rotation of the shaft 6 and thereby also the rotation of the cleaning element 2, scraping of the roller shell 20 against the scraping device 17 thus takes place, whereby dirt and liquid are mechanically removed from the roller shell 20. Furthermore, dirt and dirt liquid are centrifuged as a result of the rotation of the cleaning element 2 or the centrifugal force exerted by the cleaning element 2 and enter the dirt collection chamber 5 via the fluid connection 10. Furthermore, during regeneration, fresh liquid heated by means of the heating device 14 and delivered by the liquid pump 16 is sprayed from the discharge opening 12 of the fresh liquid distribution device 11 onto the surface of the cleaning element 2, so that detachment of dirt from the microfibre layer of the cleaning element 2 occurs. The washed out, centrifuged or scraped off dirt liquid, including the solid dirt components, enters the dirt collection chamber 5 via the fluid connection 10. The dirt collection chamber 5 can be removed from the regeneration unit 1 and emptied when required.

Fig. 6 shows a cross section of the regeneration unit 1 shown in fig. 5 in a sectional plane according to line VI. It can be seen the layout of the regeneration chamber 4, the cleaning element 2 and the spindle 6 with the toothed ring 28 and the gear wheel 29. It is also possible to see the scraping device 17, the active element 18 of which is embedded in the fibers of the sleeve 2 of the cleaning element 2. In this case, the stripping device 17 is arranged on the housing 3 of the regeneration unit 1 in a rotationally fixed manner. Alternatively, however (but not illustrated), it is also possible that the scraping device 17 is configured and arranged so as to be rotatable, such that the active element 18 rotates about an axis, for example in the same clockwise direction as the cleaning element 2, such that in the contact region between the cleaning element 2 and the scraping device 17 an opposite movement occurs, which further intensifies the effect of the mechanical force on the cleaning element 2 and leads to an optimal regeneration.

Fig. 7 finally shows a further embodiment of the regeneration unit 1 according to the invention, wherein the fresh liquid distribution device 11 is configured differently from the embodiment shown in fig. 1 to 6. The fresh liquid distribution device 11 is guided in a spiral-shaped manner around the cleaning element 2 and has a plurality of outlet openings 12 which are positioned at different positions both in relation to the longitudinal extent of the cleaning element 2 and in relation to the circumferential direction of the cleaning element 2. The fresh liquid distribution device 11 can be arranged either (as shown) inside the regeneration chamber 4 or alternatively embedded in the housing 3 of the regeneration unit 1 in such a way that only the outlet opening 12 protrudes into the regeneration chamber 4.

List of reference numerals

1 regeneration unit

2 cleaning element

3 case

4 regenerative chamber

5 dirt collecting cavity

6 rotating shaft

7 circumferential surface

8 accommodation area

9 fresh liquid chamber

10 fluid connection

11 fresh liquid distribution device

12 discharge port

13 direction of liquid discharge

14 heating device

15 electric machine

16 liquid pump

17 scraping device

18 acting element

19 roll core

20 roller sleeve

21 accumulator

22 fresh liquid joint

23 dirty liquid joint

24 electric wire

25 plug

26 base

27 control device

28 toothed ring

29 gear

30 guide support rod

31 rib

32 handle

Claims

1. A self-contained regeneration unit (1) for regenerating a cleaning element (2), wherein the cleaning element (2) is a cleaning element with a central recess, a roller core (19) and a roller sleeve (20), and wherein the regeneration unit (1) has a housing (3) with a regeneration chamber (4) for at least partially enclosing the cleaning element (2), wherein the regeneration chamber (4) has a rotatable shaft (6) with a receiving region (8) which is formed on a circumferential surface (7) of the shaft (6) for rotationally fixed connection with the central recess of the cleaning element (2), characterized in that a fresh liquid distribution device (11) is provided which is arranged in a fluid connection (10) between the regeneration chamber (4) and the fresh liquid chamber (9), the fresh liquid distribution device (11) having a plurality of outlet openings (12), the liquid discharge directions (13) of the discharge openings point in different circumferential partial regions of the cleaning element (2) that can be connected to the rotary shaft (6).

2. Regeneration unit (1) according to claim 1, characterized in that a dirt collection chamber (5) is provided which is constructed separately from the regeneration chamber (4) and has a fluid connection (10) to the regeneration chamber (4).

3. Regeneration unit (1) according to claim 1 or 2, characterized in that the fresh liquid chamber (9) is constructed independently of the regeneration chamber (4) and has a fluid connection (10) to the regeneration chamber (4).

4. Regeneration unit (1) according to claim 1 or 2, characterized in that the fresh liquid chamber (9) and/or the fresh liquid distribution means (11) are provided with heating means (14) for heating the liquid located in the fresh liquid chamber (9) and/or the fresh liquid distribution means (11).

5. A regeneration unit (1) as claimed in claim 1 or 2, characterized in that an electric motor (15) is provided, which has a driving connection to the rotary shaft (6).

6. Regeneration unit (1) according to claim 1 or 2, characterized in that an accumulator (21) is provided for powering the motor (15) and/or the liquid pump (16) and/or the heating device (14).

7. The regeneration unit (1) as claimed in one of the preceding claims, characterized in that a scraping device (17) is provided which is arranged in the regeneration chamber (4), is configured in the longitudinal extension of the rotor shaft (6) and has at least one active element (18) which is directed radially towards the rotor shaft (6).

8. Regeneration unit (1) according to claim 7, wherein said scraping means (17) are connected in a rotationally fixed manner to a rotatable additional shaft.

9. Cleaning element (2), namely a cleaning roller, for a wet cleaning device with a central recess, a roller core (19) and a roller sleeve (20), characterized in that the roller core (19) has a spacer fabric and the roller sleeve (20) has a microfiber layer, wherein the cleaning element (2) is connectable in a rotationally fixed manner to a rotating shaft (6) of a regeneration unit (1) according to any one of claims 1 to 8.

10. Cleaning element (2) according to claim 9, characterized in that the spacer fabric has a hydrophobic coating.

11. An assembly consisting of a regeneration unit (1) according to one of claims 1 to 8 and a cleaning element (2) according to claim 9, wherein the cleaning element (2) is connected to the rotational shaft (6) of the regeneration unit (1) in a rotationally fixed manner.