WO2021229309A1

WO2021229309A1 - Device for the sanitization of rooms

Info

Publication number: WO2021229309A1
Application number: PCT/IB2021/050714
Authority: WO
Inventors: Luca IACARUSO
Original assignee: Lk Lab S.R.L.
Priority date: 2020-05-11
Filing date: 2021-01-29
Publication date: 2021-11-18

Abstract

The device (1) for the sanitization of rooms comprises: - one main body (2) provided with movement means (3) adapted to displace the device (1) on a working surface (P) along at least one direction of running (D); - one electronic unit (4) operationally connected to the movement means (3) and configured to acquire at least one predefined path and to operate the movement means (3) along the predefined path; and - contactless sanitizing means (5) adapted to dispense at least one sanitizing liquid onto at least the working surface (P) during the movement of the main body (2).

Description

DEVICE FOR THE SANITIZATION OF ROOMS

Technical Field

The present invention relates to a device for the sanitization of rooms. Background Art

In the industrial cleaning sector, especially for the cleaning and sanitization of large rooms, machines and devices are known and adapted to facilitate and speed up the cleaning operations carried out manually by an operator. Specifically, industrial sweeping machines and scrubbing machines are known to require an operator to move them over a working surface, such as e.g. a paved surface.

The machines of known type involve brushes and/or rollers that interact with the working surface and lift dirt and contaminants and possibly dispense a cleaning/sanitizing liquid. At the same time, these machines suck up the lifted material and the recovery liquid resulting from the use of the cleaner/sanitizer. The machines of known type are mainly of two operating types; in a first type, the operator pushes the machine on the working surface and drives it along the desired path, while in a second type, the operator is on board the machine itself and drives it on the working surface.

The first type of machine is generally small in size and able to easily reach any point on the working surface.

However, when using this first type of machine, the operator passes over the working surface after the machine and this can lead to re-pollution of the freshly cleaned surface.

This problem is partly solved by the second type of machine.

In this case, in fact, the operator is not in contact with the working surface and the risk of re-contaminating the cleaned surface is considerably reduced. However, this second type of machine is more cumbersome, precisely because of the need to provide a driving space for the operator. The larger size makes it more difficult to move these machines, which are less agile than the previous type and have greater difficulty in reaching narrow spaces.

Both these types of machines have a further drawback linked to the fact that the operator in charge of using them is inevitably subjected to the particles dispersed in the air, as a result of the action of the brushes and/or rollers, and to the chemical substances of which the cleaning liquids are made of. In addition, the operator is necessarily forced to submit to the environmental conditions of the area of use, which in some cases can be dangerous for his health, for example in the case of loud noises, radiation, microbiological agents.

At the same time, the presence of an operator, even if on board the machine, can be the cause of further contamination of the microbial type that does not make the cleaning/sanitization operation totally effective.

This is even more evident in the case of use in chemical and microbiological laboratories, hospitals, sterile industrial departments, etc., where it is important to ensure optimal hygienic conditions.

Yet another drawback of the machines of known type is that they do not allow for the cleaning/sanitization of objects and/or surfaces other than the working surface. In this case, this further operation must necessarily be carried out manually by the operator.

Description of the Invention

The main aim of the present invention is to devise a device for the sanitization of rooms that allows carrying out a complete and effective sanitization and is safe for the operators in charge of such operation.

Another object of the present invention is to devise a device for the sanitization of rooms that is small in size and can easily reach even narrow spaces.

A further object of the present invention is to devise a device for the sanitization of rooms that allows effective sanitization of the working surface on which it operates and at the same time of objects and/or surfaces other than the latter. Another object of the present invention is to devise a device for the sanitization of rooms that allows overcoming the aforementioned drawbacks of the prior art within a simple, rational, easy, effective to use and low cost solution.

The objects set out above are achieved by the present device for the sanitization of rooms having the characteristics of claim 1.

Brief Description of the Drawings Other characteristics and advantages of the present invention will become more apparent from the description of a preferred, but not exclusive, embodiment of a device for the sanitization of rooms, illustrated by way of an indicative, yet non limiting example, in the accompanying tables of drawings wherein:

Figures 1-3 are side views of a first embodiment of the device for the sanitization of rooms according to the invention;

Figure 4 is a plan view from below of the device according to the invention; Figures 5-6 are side views of a second embodiment of the device according to the invention;

Figure 7 is a detailed view of the second embodiment of the device according to the invention;

Figure 8 is a side view of a system for the sanitization of rooms according to the invention;

Figure 9 represents a block diagram for the system connection according to the invention.

Fmbodiments of the Invention

With particular reference to such figures, reference numeral 1 globally indicates a device for the sanitization of rooms.

The device 1 according to the invention comprises: at least one main body 2 provided with movement means 3 adapted to displace the device 1 on a working surface P along at least one direction of running D; at least one electronic unit 4 operationally connected to the movement means 3 and configured to acquire at least one predefined path and to operate the movement means 3 along the predefined path; and contactless sanitizing means 5 adapted to dispense at least one sanitizing liquid onto at least the working surface P during the movement of the main body 2.

The device 1 is, therefore, adapted to sanitize and clean the working surface P moving independently along the predefined path.

The device 1 does not require the presence of an operator to move it on the working surface P and therefore allows a complete and effective sanitizing operation.

In addition, this allows the device 1 to be extremely small in size and able, therefore, to reach even narrow and/or difficult to access spaces.

In the embodiment shown in the figures, the movement means 3 are of the type of a set of wheels 3a, 3b.

In more detail, the movement means 3 comprise a pair of motor-driven wheels 3 a, which allow the actual movement of the device 1, and a set of pivoting wheels 3b, which allow the rotation of the device 1 on itself.

It cannot however be ruled out that the movement means 3 may be of a different type.

The device 1 comprises at least one motor assembly associated with the movement means 3, operationally connected to the electronic unit 4 and adapted to drive the movement means 3.

In more detail, the motor assembly transmits motion to the motor-driven wheels 3a.

The motor assembly is, e.g., of the type of an electric motor.

Conveniently, the device 1 comprises at least one rechargeable energy accumulator adapted to supply the device 1 and provided with a power supply connector 6.

In particular, the energy accumulator provides power to the motor assembly and to the further electrical components of the device 1.

The power supply connector 6, facing outwards from the device 1, allows the energy accumulator to be recharged.

The electronic unit 4 comprises at least one programmable memory unit 7 with at least one plan of the area of use and with the predefined path.

In more detail, the programming of the memory unit 7 is carried out by the operator prior to the start of the sanitization process.

The electronic unit 4 has the function of electronically controlling the movement means and all the other electronic components of the device 1. Advantageously, the device 1 also comprises transceiving means 8 operationally connected to the electronic unit 4 and adapted to receive and transmit signals to a remote control unit 9.

In more detail, through the transceiving means 8, the memory unit 7 is also programmable from the remote control unit 9, in order to be able to change the predefined path during the sanitization operation without interrupting the whole process.

The transceiving means 8 are of the type of radio wave, Wi-Fi, Bluetooth transceiver devices and the like.

The device 1 further comprises position sensing means 10 adapted to send a corresponding signal to the electronic unit 4.

The electronic unit 4 is further configured to drive the movement means 3 based on the aforementioned signal.

The device 1 is, therefore, able to orient itself independently within the area of use.

The electronic unit 4 is programmed to compare the signal received from the position sensing means 10, relative to the position in the area of use, with the plan and the predefined path.

This way, the device 1 actually follows the predefined path.

Furthermore, by means of the position sensing means 10, the operator is also able to know the actual position of the device 1 in the area of use.

For this purpose, the transceiving means 8 allow the position signal to be sent to the remote control unit 9.

In addition, the device 1 comprises distance sensors 11 associated with the main body 2 and configured to detect the presence of obstacles along the predefined path.

Any unexpected obstacles in the area of use, such as e.g. chairs, tables, as well as operators or additional devices 1 , could prevent the device 1 from continuing along the predefined path, thus interrupting the sanitizing operation.

For this purpose, the electronic unit 4 is further programmed to vary the predefined path on the basis of such obstacles.

In more detail, the electronic unit 4 processes a different predefined path and stores it in the memory unit 7.

Conveniently, the memory unit 7 is further programmable with one or more sanitization cycles to be transmitted to the contactless sanitizing means 5.

The contactless sanitizing means 5 comprise: at least one tank 12 adapted to contain the sanitizing liquid; and a plurality of main dispensing elements 13 a, 13b connected in a fluid- operated manner to the tank 12 and configured to dispense the sanitizing liquid towards the working surface P.

The tank 12 comprises a loading port 12a for the replenishment of the sanitizing liquid.

Advantageously, the main dispensing elements 13a, 13b are associated below with the main body 2, facing the working surface P and arranged along a direction of extension S transverse to the direction of running D.

In more detail, the main dispensing elements 13a, 13b are arranged side-by-side with each other and extend by the entire width of the main body 2.

In other words, the main dispensing elements 13a, 13b are able to dispense the sanitizing liquid so as to completely cover the surface run by a single stroke of the device 1.

The main dispensing elements 13a, 13b, e.g. of the type of nozzles, are configured to direct a jet of sanitizing liquid onto the working surface P.

The contactless sanitizing means 5 also comprise a plurality of secondary dispensing elements 14 configured to dispense the sanitizing liquid onto the movement means 3.

The secondary dispensing elements 14 have, therefore, the function of sanitizing the movement means 3 to avoid any possible contamination by the same.

The secondary dispensing elements 14 are of a similar type to the main dispensing elements 13a, 13b and direct the jet of sanitizing liquid to the movement means 3.

The device 1 further comprises spreading means 15 arranged upstream of the dispensing elements 13a, 13b, 14 with respect to the direction of running D and adapted to spread at least the sanitizing liquid dispensed by the main dispensing elements 13 a, 13b onto the working surface P.

The spreading means 15 are of the sliding type and, during the movement of the main body 2, they distribute the sanitizing liquid previously dispensed onto the working surface P in an even manner.

Therefore, the spreading means 15 ensure that the entire surface covered by the device 1 is coated by the sanitizing liquid, distributing it evenly even in any places not reached by the jet of sanitizing liquid.

In the embodiment shown in the figures, the contactless sanitizing means 5 also comprise aspiration means 16 comprising at least one aspirator element 17 associated below with the main body 2.

The aspirator element 17 has the function of removing by suction any contaminants present on the working surface P.

The aspirator element 17 comprises an aspiration port 17a of elongated conformation, which extends transversely to the direction of running D and extends by the entire width of the main body 2.

The aspirator element 17 is, therefore, able to carry out a complete suction operation of the working surface P with a single stroke of the device 1 over the surface covered.

It cannot however be ruled out that the aspiration means 16 may comprise a plurality of aspirator elements 17, each provided with a respective aspiration port 17a of substantially circular conformation, arranged side-by-side with each other transversely to the direction of running D.

Conveniently, the aspiration means 16 are configured to suck a recovery liquid, deriving from the use of the sanitizing liquid, from at least the working surface

P.

The term “recovery liquid” means the sanitizing liquid previously dispensed on the working surface P and possibly left to act, which has performed its sanitizing action and can, therefore, be removed.

The recovery liquid is removed to avoid leaving residues in the area of use.

Still with reference to the embodiment shown in the figures, the main dispensing elements 13 a, 13b conveniently comprise first dispensing elements 13a and second dispensing elements 13b arranged in succession with respect to the direction of running D, along their respective directions of extension S substantially parallel to each other, and the aspirator element 17 is positioned between the first dispensing elements 13a and the second dispensing elements 13b.

Specifically, the aspirator element 17 has the function of removing the sanitizing liquid dispensed by the first dispensing elements 13 a.

The sanitizing liquid dispensed by the second dispensing elements 13b is, on the other hand, evenly distributed by means of the spreading means 15 and, if necessary, removed at a later time.

Conveniently, the aspiration means 16 comprise at least one collecting vessel 18 connected in a fluid- operated manner to the aspirator element 17 and adapted to contain the recovery liquid.

The device 1 comprises at least one drain port 18a associated with the collecting vessel 18 and adapted to allow the escape of the recovery liquid.

The contactless sanitizing means 5 further comprise pressure sanitizing means 19 adapted to dispense the sanitizing liquid on the working surface P in overpressure.

The pressure sanitizing means 19 allow the sanitizing liquid to be dispensed while removing, at the same time, any dirt particles from the working surface P. The pressure sanitizing means 19 comprise a high pressure pumping system and at least one pressure dispenser 20 arranged below the main body 2.

In the embodiment shown in the figures, the pressure dispenser 20 extends by the entire width of the main body 2 and is arranged at the point where the aspiration port 17a is located.

It cannot however be ruled out that the pressure sanitizing means 19 may comprise a plurality of pressure dispensers 20 arranged side-by-side to each other transversely to the direction of running D.

In a further embodiment shown in Figures 5 and 6, the device 1 further comprises at least one articulated arm 21 associated above with the main body 2 and provided with at least one operating head 22.

In this embodiment, the contactless sanitizing means 5 comprise at least one main distribution element 23 associated with the operating head 22, which main distribution element is connected in a fluid-operated manner to the tank 12 and adapted to dispense the sanitizing liquid towards an object to be sanitized.

In particular, the term “object to be sanitized” means a body arranged to rest on the working surface P but also an aerial surface separate from the working surface P such as e.g. the surface of a table, a door, a handle, etc.

The main distribution element 23 is substantially similar to the main dispensing elements 13a, 13b and is adapted to direct the jet of sanitizing liquid onto the object to be sanitized.

Conveniently, the contactless sanitizing means 5 comprise a plurality of main distribution elements 23 arranged on the operating head 22. Such a solution allows for easy dispensing of the sanitizing liquid even on large objects to be sanitized.

Advantageously, the articulated arm 21 comprises viewer means 24 associated with the operating head 22, operationally connected to the electronic unit 4 and adapted to detect the presence of the object to be sanitized.

In more detail, the electronic unit 4 is programmed to detect the objects to be sanitized and to convey the main body 2 towards it.

The viewer means 24 are of the type of a camera, an infrared camera or the like. Appropriately, the electronic unit 4 is further configured to also move the articulated arm 21 and consequently the operating head 22.

Conveniently, the operating head 22 comprises gripping means 25 adapted to grip the object to be sanitized.

The gripping means 25, such as a collaborative gripper, allow the object to be sanitized to be lifted from its position and sanitizing it more efficiently.

The contactless sanitizing means 5 comprise at least one secondary distribution element 26 adapted to dispense the sanitizing liquid towards the gripping means 25.

The secondary distribution element 26 has the function of sanitizing the gripping means 25 as a result of the contact with the object to be sanitized. Advantageously, the aspiration means 16 comprise at least one suction element 27 associated with the operating head 22.

The suction element 27 is adapted to remove by suction any contaminants present on the objects to be sanitized.

The suction element 27 is connected in a fluid- operated manner to the collecting vessel 18 and has the function of removing the recovery liquid from the objects to be sanitized and/or from the gripping means 25.

According to a further aspect, the present invention also relates to a system 28 for the sanitization of rooms, shown in Figure 8.

The system 28 comprises at least one device 1 according to any of the embodiments described herein and at least one charging station 29 provided with at least one power supply device 30 associable with the power supply connector 6.

In more detail, the device 1 comprises battery sensors 33 operationally connected to the electronic unit 4 and configured to detect at least one state of charge of the energy accumulator and the electronic unit 4 being programmed to bring the device 1 towards the charging station 29 with the state of charge lower than a predefined value.

More specifically, when the state of charge of the energy accumulator is insufficient to continue the sanitization operation, the electronic unit 4 moves the device 1 towards the charging station to allow it to be recharged through the power supply device 30.

Advantageously, the charging station 29 also comprises at least one replenishment device 31 connectable to the tank 12 and adapted to load the sanitizing liquid into the tank 12.

More specifically, the replenishment device 31 is associable in a removable manner with the loading port 12a during the replenishment operation.

The device 1 comprises level sensors 34 operationally connected to the electronic unit 4 and configured to detect at least one level value of the sanitizing liquid inside the tank 12, and the electronic unit 4 is programmed to bring the device 1 towards the charging station 29 with the level value of the sanitizing liquid lower than a predefined value.

Substantially, when the amount of sanitizing liquid is insufficient to continue the sanitizing operation, the electronic unit 4 moves the device 1 towards the charging station 29 to allow the replenishment through the replenishment device

31.

In the embodiment shown in Figure 8, the charging station 29 comprises at least one drain device 32 connectable to the collecting vessel 18 and adapted to remove the recovery liquid from the collecting vessel 18.

In particular, the drain device 32 is associable in a removable manner with the drain port 18a during such emptying operation.

The device 1 comprises filling sensors 35 operationally connected to the electronic unit 4 and configured to detect at least one level value of the recovery liquid inside the collecting vessel 18, and the electronic unit 4 is programmed to bring the device 1 towards the charging station 29 with the level value of the recovery liquid higher than a predefined value.

Substantially, when the amount of recovery liquid is excessive and thus the collecting vessel 18 substantially full, the electronic unit 4 moves the device 1 towards the charging station 29 to allow emptying it through the drain device

32.

The operation of the device 1 and of the related system 28 according to the present invention is as follows.

The device 1 can operate according to different modes of operation.

For the sake of completeness of exposure, the modes of operation of the device 1 according to the embodiment shown in Figures 5 and 6, i.e. also comprising the articulated arm 21, are shown below.

Preliminarily, the device 1 is programmed to follow a predefined path in an area of use. In more detail, an operator programs the memory unit 7 with the predefined path and, if applicable, the plan of the area of use.

The device 1 is then brought to the area of use, on the working surface P, to carry out the sanitizing operation. During the movement to the area of use, the device 1 senses its own position by means of the position sensing means 10.

By means of the distance sensors 11, the device 1 also senses any obstacles. Based on the sensed signals, the device 1 processes a new path.

Alternatively, by means of the transceiving means 8, the signals are sent to the remote control unit 9 which processes the predefined path again. The operator may in any case arrange to vary the predefined path, depending on the operational requirements and transmit it to the electronic unit 4.

In a first mode of operation, the sanitizing liquid is dispensed through the first dispensing elements 13a and the second dispensing elements 13b on the working surface P.

Simultaneously, the aspirator element 17 removes the recovery liquid resulting from the sanitizing liquid previously dispensed by the first dispensing elements 13 a, and the spreading means 15 evenly distributes the sanitizing liquid dispensed by the second dispensing elements 13b.

When the viewer means 24 detect an object to be sanitized, the operating head 22 is actuated to approach the object by means of the movement of the articulated arm 21 and the main distribution elements 23 dispense the sanitizing liquid onto it.

If the operation requires the use of the gripping means 25, upon completion, the secondary distribution elements 26 dispense the sanitizing liquid on the gripping means 25.

During the movement of the device 1 on the working surface P, the secondary dispensing elements 14 sanitize the movement means 3 by dispensing the sanitizing liquid onto them.

In a second mode of operation, the device 1 operates in a manner similar to that described above, however, unlike in the first mode, the operating head 22 operates only in the suction mode and, therefore, the suction element 27 is activated to remove the recovery liquid resulting from a previous dispensing and/or any contaminating particles.

In a third mode of operation, the device 1 operates in a manner similar to that described above, however, unlike in the previous modes, suction is disabled and the device 1 provides only for the dispensing of the sanitizing liquid.

The sanitizing liquid is dispensed by the first dispensing elements 13a, the second dispensing elements 13b, the distribution elements, and/or the pressure sanitizing means 19.

In a fourth mode of operation, the device 1 operates in a manner similar to that described above, however, unlike the previous modes, the device 1 provides suction only.

Therefore, the sanitizing liquid is not dispensed and only the aspirator element 17 and the suction element 27 are activated.

In this mode, the recovery liquid is sucked in from a previous dispensing and/or any contaminating particles.

In all of the aforementioned modes of operation, the device 1 is also programmed to return to the charging station X when at least one of either the state of charge, the level of sanitizing liquid or the level of recovery liquid requires it.

It has, in practice, been ascertained that the described invention achieves the intended objects, and in particular the fact is emphasized that the device for the sanitization of rooms according to the present invention does not require the presence of an operator and allows carrying out a complete and effective sanitization and that it is safe for the operators in charge of such operation.

In addition, the device according to the invention is achievable with very small dimensions so that it can easily reach even narrow spaces.

Finally, this device allows effective sanitization of the working surface on which it operates and at the same time of objects and/or surfaces that are separate from the latter, thanks to the presence of the operating head associated with the articulated arm.

Claims

1) Device (1) for the sanitization of rooms, characterized by the fact that it comprises: at least one main body (2) provided with movement means (3) adapted to displace said device (1) on a working surface (P) along at least one direction of running (D); at least one electronic unit (4) operationally connected to said movement means (3) and configured to acquire at least one predefined path and to operate said movement means (3) along said predefined path; and contactless sanitizing means (5) adapted to dispense at least one sanitizing liquid onto at least said working surface (P) during the movement of said main body (2).

2) Device (1) according to claim 1, characterized by the fact that said electronic unit (4) comprises at least one programmable memory unit (7) with at least said predefined path.

3) Device (1) according to one or more of the preceding claims, characterized by the fact that it comprises distance sensors (11) associated with said main body (2) and configured to detect the presence of obstacles along said predefined path, said electronic unit (4) being further programmed to vary said predefined path on the basis of said obstacles.

4) Device (1) according to one or more of the preceding claims, characterized by the fact that said contactless sanitizing means (5) comprise: at least one tank (12) adapted to contain said sanitizing liquid; and a plurality of main dispensing elements (13a, 13b) connected in a fluid- operated manner to said tank (12) and configured to dispense said sanitizing liquid towards said working surface (P).

5) Device (1) according to one or more of the preceding claims, characterized by the fact that said main dispensing elements (13a, 13b) are associated below with said main body (2), facing said working surface (P) and arranged along a direction of extension (S) transverse to said direction of running (D).

6) Device (1) according to one or more of the preceding claims, characterized by the fact that said contactless sanitizing means (5) comprise a plurality of secondary dispensing elements (14) configured to dispense said sanitizing liquid onto said movement means (3).

7) Device (1) according to one or more of the preceding claims, characterized by the fact that it comprises spreading means (15) arranged upstream of said dispensing elements (13a, 13b, 14) with respect to said direction of running (D) and adapted to spread said sanitizing liquid dispensed by at least said main dispensing elements (13a, 13b) onto said working surface (P).

8) Device (1) according to one or more of the preceding claims, characterized by the fact that said contactless sanitizing means (5) comprise aspiration means

(16) comprising at least one aspirator element (17) associated below with said main body (2).

9) Device (1) according to one or more of the preceding claims, characterized by the fact that said aspiration means (16) are configured to suck a recovery liquid, deriving from the use of said sanitizing liquid, from at least said working surface (P) and comprise at least one collecting vessel (18) connected in a fluid- operated manner to said aspirator element (17) and adapted to contain said recovery liquid.

10) Device (1) according to claim 9, characterized by the fact that said main dispensing elements (13a, 13b) comprise first dispensing elements (13a) and second dispensing elements (13b) arranged in succession with respect to said direction of running (D), along their respective directions of extension (S) substantially parallel to each other, said aspirator element (17) being placed between said first dispensing elements (13a) and said second dispensing elements (13b).

11) Device (1) according to one or more of the preceding claims, characterized by the fact that said contactless sanitizing means (5) comprise pressure sanitizing means (19) arranged below said main body (2) and adapted to dispense said sanitizing liquid in overpressure conditions on said working surface (P) and arranged below said main body (2).

12) Device (1) according to one or more of the preceding claims, characterized by the fact that it comprises at least one articulated arm (21) associated above with said main body (2) and comprising at least one operating head (22) and by the fact that said contactless sanitizing means (5) comprise at least one main distribution element (23) associated with said operating head (22), which main distribution element (23) is connected in a fluid- operated manner to said tank (12) and adapted to dispense said sanitizing liquid towards an object to be sanitized.

13) Device (1) according to one or more of the preceding claims, characterized by the fact that said articulated arm (21) comprises viewer means (24) associated with said operating head (22), operationally connected to said electronic unit (4) and adapted to detect the presence of said object to be sanitized.

14) Device (1) according to claim 12 or 13, characterized by the fact that said operating head (22) comprises gripping means (25) adapted to grip said object to be sanitized, said contactless sanitizing means (5) comprising at least one secondary distribution element (26) adapted to dispense said sanitizing liquid towards said gripping means (25).

15) Device (1) according to one or more of claims 12 to 14, characterized by the fact that said aspiration means (16) comprise at least one suction element (27) associated with said operating head (22).

16) Device (1) according to one or more of the preceding claims, characterized by the fact that it comprises at least one rechargeable energy accumulator adapted to supply said device (1) and provided with a power supply connector (6). 17) System (28) for the sanitization of environments, characterized by the fact that it comprises at least one device (1) according to claim 16 and at least one charging station (29) provided with at least one power supply device (30) associable with said power supply connector (6).

18) System (28) according to claim 17, characterized by the fact that said charging station (29) comprises at least one replenishment device (31) connectable to said tank (12) and adapted to load said sanitizing liquid into said tank (12), said device (1) comprising at least one loading port (12a) associated with said tank (12) and adapted to allow the replenishment of said sanitizing liquid.

19) System (28) according to claim 18, characterized by the fact that said device (1) comprises level sensors (34) operationally connected to said electronic unit

(4) and configured to detect at least one level value of said sanitizing liquid inside said tank (12), said electronic unit (4) being programmed to bring said device (1) towards said charging station (29) with said level value of said sanitizing liquid being lower than a predefined value. 20) System (28) according to one or more of claims 17 to 19, characterized by the fact that said charging station (29) comprises at least one drain device (32) connectable to said collecting vessel (18) and adapted to remove said recovery liquid from said collecting vessel (18), said device (1) comprising at least one drain port (18a) associated with said collecting vessel (18) and adapted to allow the escape of said recovery liquid.

21) System (28) according to claim 20, characterized by the fact that said device (1) comprises filling sensors (35) operationally connected to said electronic unit (4) and configured to detect a level value of said recovery liquid inside said collecting vessel (18), said electronic unit (4) being programmed to bring said device (1) towards said charging station (29) with said level value of said recovery liquid which is higher than a predefined value.