DE102024108319A1 - Refill device for dosing dispenser - Google Patents

Abstract

The invention relates to a refill device mainly for dosing dispensers for providing and dosing liquid products, with a one-part or multi-part housing 1, with a connection device 23 for connecting a storage tank 21 for a liquid product and for removing the liquid product from the same, with an adjustment space 20 provided in the housing 1 and accessible from the outside for the storage tank 21 or with a connecting device provided on the housing 1 for connecting the housing 1 to the storage tank 21, with a filler neck 6 arranged on the housing 1 for a dosing dispenser 7, and with a filling pump 26 integrated in the housing 1 or attached to the housing 1 for conveying the liquid product from the connection device 23 to the filler neck 6. The filling pump 26 is designed as a peristaltic pump 27.

Description

The invention relates to a refill device for dosing dispensers, which are intended for the provision and dosed dispensing of liquid products, according to the preamble of claim 1. The liquid products are in particular cosmetic products with detergent substances or care products for body and hair care.

Such a refilling device comprises a single- or multi-part housing. Its interior contains an externally accessible storage space for a storage tank in which the liquid product is kept for refilling. Alternatively, the housing has a connecting device with which the housing can be connected to the storage tank. A refilling device of this type also comprises a connection device for connecting the storage tank and for removing the liquid product from it, a filling nozzle arranged on the housing for a dosing dispenser, and a filling pump integrated into or attached to the housing for conveying the liquid product from the connection device to the filling nozzle.

Dosing dispensers for the measured dispensing of detergents or body care products, in particular, have been around for a long time in various designs. They are used not only in private households, but also in hotels and in the restrooms of restaurants and similar publicly accessible establishments, where they are sometimes provided as wall mounts or freestanding. In hotel bathrooms and wellness areas, dosing dispensers are often used not only for liquid soap, but especially for shower oil, hair shampoo, and other care products such as lotions or similar. The liquid products contained therein can be dosed as needed and hygienically dispensed, eliminating the need for individually packaged and therefore unsustainable small containers of corresponding care products for one- or two-time use.

With regard to the sustainable use of resources, a major advantage of a dosing dispenser is its refillable container. However, refilling dosing dispensers can be time-consuming, especially in hotels where housekeeping staff manage a variety of usage locations. Typically, the dosing dispensers requiring refills are collected, refilled centrally, and then distributed to the usage locations, especially hotel rooms. Alternatively, the dosing dispensers can be refilled on-site as needed. Traditionally, each dosing dispenser must be opened for the actual refilling process – in the case of a pump dispenser, the pump cap is unscrewed from the bottle opening – after which the liquid product to be refilled is first dispensed from a storage tank into an intermediate container, and then the bottle or container of the dosing dispenser must be refilled from this intermediate container through the opened container opening. This is time-consuming and cumbersome, slows up housekeeping staff, and is accordingly a disliked task. Furthermore, such a conventional refilling process requires improvement from a hygienic point of view, since the refilled liquid product does not remain in a closed system protected against contamination.

To avoid these problems, the WO 2021/093972 A1 A refill system with a number of specially designed pump dispensers and a refilling device has been proposed, which makes the refilling process much simpler and, in particular, ensures that the refilled liquid product is largely protected against contamination during the refilling process. This refilling device is therefore of the type mentioned above, and the basis of the present invention. According to this prior art, an electric motor-driven diaphragm pump is used as the filling pump for conveying the liquid product to be refilled from the storage tank into the dosing dispenser.

In the US 2018/0265345 A1 A refill system for detergent substances was proposed, comprising a plurality of wall-mounted dosing dispensers and a portable storage tank for refilling these dosing dispensers. Here, a storage tank is mounted on a refilling device, so that an electric motor-driven filling pump located in the refilling device can draw the liquid product from the storage tank and pump it into the dosing dispenser containers via a hose line connected by an operator to the dosing dispensers to be refilled. Accordingly, this can hardly be described as a closed system, since the connecting hose, which is usually more than a meter long, can easily become accidentally contaminated. Furthermore, the fill level of the dosing dispenser to be filled can be difficult or impossible to determine during refilling. Overflow and the associated contamination can result.

Based on this prior art, the invention is based on the object of providing a refilling device of the type mentioned at the beginning with regard to to further improve their ease of handling and their hygiene properties.

This object is achieved by a refilling device having the features of the appended claim 1. Advantageous embodiments and further developments of the refilling device according to the invention can be found in the subordinate claims.

A refill device for dosing dispensers according to the invention, with a single-part or multi-part housing, with a connection device for connecting a storage tank for a liquid product and for removing the liquid product from the same, with an adjustment space for the storage tank provided in the housing and accessible from the outside or with a connecting device provided on the housing for connecting the housing to the storage tank, with a filler neck arranged on the housing on the dosing dispenser, and with a filling pump integrated in the housing or attached to the housing for conveying the liquid product from the connection device to the filler neck, is thus characterized in that the filling pump is designed as a peristaltic pump, the inlet of which is connected directly or via a suction line to the connection device and the outlet of which is connected directly or via a conveying line to the filler neck.

• Die pH-Werte von typischen Flüssigprodukten in Dosierspendern: Shampoo, Duschgel, Flüssigseife, Conditioner und Bodylotion liegen typischerweise zwischen 3,5 und 6,5, liegen also im sauren Bereich, sodass es zu befürchten ist, dass die Materialien der Füllpumpe mit dem Flüssigprodukt reagieren. Der Viskositätsbereich der typischen Flüssigprodukte liegt typischerweise zwischen 3.000 mPas und 10.000 mPas, beim Conditioner typischerweise zwischen 8.000 und 30.000 mPas sowie bei der Bodylotion typischerweise zwischen 8.000 und 70.000 mPas, jeweils bei 20°C und Normaldruck gemessen mit einem Brookfield-Rheometer (shear rate: 5 s^-1). Flüssigprodukte mit diesen Eigenschaften können mit einer Membranpumpe oder einer Kolbenpumpe kaum solcherart gefördert werden, dass nach einem Stopp der Pumpe ein Rückfluss einer geringen Menge an Flüssigprodukt in den Vorratstank zuverlässig verhindert werden kann.

According to the invention, it has been recognized that the filling pumps used in the prior art for relevant refilling devices are not optimal for the liquid products typically to be refilled and, on the other hand, do not meet the highest desired hygiene requirements:

• The pH values of typical liquid products in dosing dispensers: shampoo, shower gel, liquid soap, conditioner, and body lotion are typically between 3.5 and 6.5, i.e., in the acidic range, so there is a risk that the materials of the filling pump will react with the liquid product. The viscosity range of typical liquid products is typically between 3,000 mPas and 10,000 mPas; for conditioner, typically between 8,000 and 30,000 mPas, and for body lotion, typically between 8,000 and 70,000 mPas, each measured at 20°C and atmospheric pressure using a Brookfield rheometer (shear rate: 5 s ^-1 ). Liquid products with these properties can hardly be pumped with a diaphragm pump or a piston pump in such a way that a backflow of a small amount of liquid product into the storage tank can be reliably prevented after the pump is stopped.

In addition, all pumps require maintenance, although refilling devices of this type are generally not sent to the manufacturer for maintenance. This can pose a hygiene problem with the filling pumps used in the state of the art, as the filling pumps, which may not be optimally maintained, naturally come into intensive contact with the liquid product again afterward.

The inventive proposal to design the filling pump as a hose pump, also known as a peristaltic pump, eliminates the weaknesses identified by the invention. This is because the liquid product is conveyed through the hose pump within a pump hose and thus never comes into contact with the motorized parts of the hose pump. During any maintenance of the hose pump, the pump hose can be easily and hygienically replaced without affecting the other parts of the hose pump. This eliminates the need for imperfect cleaning of the fluid-carrying parts of the filling pump.

A material can be selected for the pump hose that easily copes with the pH values and viscosities typical of the liquid products used here; within the scope of the present invention, a silicone pump hose is preferred. The liquid products conveyed through this pump hose remain completely unaffected by the pump hose material.

A further advantage from a hygiene perspective with the peristaltic pump used according to the invention is that there are no dead spaces for the pumped liquid product. It is also possible to operate a peristaltic pump in such a way that no extraneous or outside air can reach the pumped liquid product. This ultimately enables food-grade handling of the liquid products, which is a major advantage in the cosmetics sector. A pump hose designed as a silicone hose plays a particularly important role in this, as it is resistant to the typical pH values and the oils commonly found in cosmetics in accordance with food standards. Silicone is also diffusion-tight, so that no contaminants can diffuse into the liquid product.

Another major advantage of the peristaltic pump used as a filling pump according to the invention is the easy, stepless control of the pumping speed, for example, using a simple rotary knob or a pedal. Furthermore, to prevent dripping at the filler neck, A peristaltic pump can be operated briefly in reverse after a stop without allowing external or outside air to enter the conveying system and reach the liquid product.

It is particularly preferred within the scope of the present invention if the peristaltic pump used as a filling pump according to the invention is arranged in an externally accessible pump compartment in the housing. This allows the pump hose to be replaced easily and quickly as needed, or even, if necessary, the entire filling pump to be replaced. At the same time, the pump compartment can be closed with a transparent cover, so that a visual inspection of the hose line running from the connection device via the peristaltic pump to the filler neck, or at least the intake line, the pump hose, and the delivery line, is possible at any time. This naturally increases the operational reliability of the refilling device according to the invention.

If the housing of the refill device according to the invention is provided with an externally accessible storage space for the storage tank, it is preferred if this storage space has a drawer for inserting and pushing or pulling the storage tank into or out of the housing. Since storage tanks in the present application area reasonably have a liquid product content of around 10 liters, they have a corresponding weight, which makes handling very difficult, especially when the storage tank is to be inserted into the storage space of the refill device. After pulling out the drawer, the storage tank can simply be placed on the drawer and moved together with it into the storage space in the housing. The storage tank can also be connected to the connection device of the refill device while the storage tank is standing on the extended drawer; this also significantly simplifies handling.

Whether with or without a drawer, the externally accessible storage compartment of a correspondingly designed refilling device according to the invention can be closed with a pivoting door. This is particularly advantageous when the liquid product stored in the storage tank is sufficient for a large number of refilling operations, so that the storage tank remains in the storage compartment of the refilling device housing for a correspondingly long time. The pivoting door then closes the storage compartment and can even be locked with a lock if necessary.

If the housing of the refilling device is provided with an externally accessible adjustment space for the storage tank, it is preferred if the connection device for connecting the storage tank is arranged within the adjustment space. It is preferably extendable from there, for example, by designing a suction line of the peristaltic pump with a sufficient length to allow the connection device to be pulled out of the adjustment space, thus ensuring easy insertion and removal of the connection device to and from the storage tank.

To prevent unintentional contamination of the liquid product being refilled and to prevent ambient air from reaching it, it is preferred within the scope of the present invention if the filler neck of the refilling device is equipped with a backflow preventer, in particular a check valve or a duckbill valve. The latter also supports clean operation, as it prevents dripping from the filler neck.

The filler neck of the refill device according to the invention is preferably arranged on a front side of the housing, wherein the front side has a projection with a front and a bottom in an upper region, and wherein the filler neck is positioned on the bottom of this projection in such a way that it dispenses the liquid product downwards. Dispensing of the liquid product is thus assisted by gravity, and any dripping liquid product can then fall downwards without touching the housing at any point and thus contaminating it, where it can be collected, for example, by a drip tray.

In this case, a first holder for a container of a dosing dispenser to be refilled can be attached to the front of the housing, wherein this first holder is intended in particular to hold the container at the filler neck during refilling or to specify a position in which the container must be held during refilling. At least one second holder can also be provided on the front of the housing, which serves to hold components of a dosing dispenser that must be removed from the container to be refilled for the refilling process. In a pump dispenser as a dosing dispenser, this is a dosing pump, which, together with a usually present union nut, a dispensing device and a suction tube, must be removed from the bottle opening of the container in order to be able to refill the container. If a holder or even just a storage location is specified for such components of the dosing dispenser, these components are not put down somewhere during refilling, which is to be avoided for hygiene reasons.

At the front of the preferred projection of the housing, operating elements can be elements for the filling pump. This allows for intuitive operation of the refilling device.

On the front of the housing, below the filler neck, a flat or linear light source is particularly preferably arranged. The vertical extent of the light source preferably corresponds at least to the height of a typical refillable container of a dosing dispenser, but preferably has at least a vertical extent that spans an upper region of a refillable container sufficient to detect a fill level during the refilling process, shortly before the container is full, typically at least 8 to 10 cm below the container opening. This light source is intended to illuminate the container during the refilling process. Since most dosing dispenser containers are at least slightly translucent, this creates transmitted light that makes it possible to detect the increasing liquid level when refilling the container and to switch off the filling pump in time before the container overflows. Since, with the volumes of typical dosing dispenser containers and the flow rates of peristaltic pumps, a container can easily be refilled within typically 10 seconds, such permanent visual monitoring of the fill level is extremely beneficial. At the same time, complex fill level sensors for an electronic display of the current fill level and/or an automatic shutdown of the filling pump are no longer necessary.

The refilling device according to the invention can be supplemented with a number of storage tanks that collapse when the liquid product stored therein is removed. Accordingly, no outside air is drawn in when the storage tank is emptied, which is again highly advantageous from a hygiene perspective. Furthermore, emptied storage tanks can be transported with a very small volume for refilling or other recycling.

The refilling device according to the invention preferably contains a control for the filling device, wherein this control is designed such that it regulates the pumping performance of the peristaltic pump via user input, in particular by means of a rotary control that can be attached to the housing, for example on the front of the projection on the front side of the housing, and can be provided with an integrated on/off function. The simplest implementation consists of a potentiometer that is mechanically connected to the rotary control and regulates the speed of the peristaltic pump. With the filling speeds of a few seconds already mentioned above, it is highly advantageous if the operator can "slow down" the filling process in good time with the rotary control in order to be able to switch off the pump as precisely as possible when the refilling process is complete. The on/off function of the rotary control can, for example, be combined with a detent at its zero position.

Alternatively, or if necessary, in addition to the rotary control, a pedal can be provided for user input. Such a pedal can preferably be connected to the refilling device, particularly via cable, as required, and allow the filling speed to be controlled with one foot.

The control of the refilling device according to the invention is preferably designed such that the peristaltic pump briefly runs backward after stopping to prevent any dripping at the filler neck. The peristaltic pump has the great advantage that such a reverse pulse is easily possible and, secondly, that no liquid or external air is or needs to be sucked in through the filler neck.

Finally, it is preferred if the housing of the refilling device according to the invention is provided with a connection for a power cable for supplying power to the filling pump, as well as at least one additional connection for a power supply unit of another refilling device. This allows several refilling devices according to the invention, which are intended, for example, for different liquid products, to be placed next to each other and to be supplied with electrical power via often only one accessible socket.

In the following, an exemplary embodiment of a refill device for dosing dispensers designed according to the invention is described and explained in more detail with reference to the accompanying drawings. The invention is not limited to the embodiment described and illustrated merely by way of example; however, essential features of the invention may be contained in the drawings and the following description thereof.

• 1 eine schematische, isometrische Darstellung eines Ausführungsbeispiels für eine erfindungsgemäß ausgestaltete Nachfüllvorrichtung, beim Nachfüllen eines Dosierspenders;
• 2 eine Darstellung wie 1, wobei die Nachfüllvorrichtung geöffnet ist;
• 3 eine Darstellung wie 2, mit eingesetztem Vorratstank;
• 4 eine schematische isometrische Darstellung der Nachfüllvorrichtung aus den 1 bis 3, wobei zur Verdeutlichung von eigentlich nicht sichtbaren Bauteilen zwei Gehäusewände weggelassen sind;
• 5 eine Draufsicht auf die Darstellung aus 4.

They show:

• 1 a schematic, isometric representation of an embodiment of a refilling device designed according to the invention, when refilling a dosing dispenser;
• 2 a representation like 1 , the refilling device being open;
• 3 a representation like 2 , with inserted storage tank;
• 4 a schematic isometric representation of the refill device from the 1 to 3 , whereby two housing walls have been omitted to clarify components that are not actually visible;
• 5 a top view of the representation 4 .

The 1 is an isometric view obliquely from above of a refilling device designed according to the invention. The elements of this refilling device visible here are a housing 1 with a front side 2, in the upper area of which there is a projection 3 with a front 4 and a bottom 5. Arranged on the bottom 5 of the projection 3 is a filler neck 6, which serves for refilling a dosing dispenser 7, more precisely: for refilling a container 8 of a dosing dispenser 7.

On a drip tray 9, which is attached to the base of the front panel 2 of the housing 1, forms a counterpart of the projection 3, and serves primarily to collect liquid products spilled at or dripping from the filler neck 6, a shelf, which can also be designed as a holder, is formed for the components removed from the container 8 of the dosing dispenser 7 for the refilling process. These components are a dosing pump 10, which, as is known per se, is screwed into the container 8 of the dosing dispenser 7, a suction pipe 11 for the dosing pump 10, and a dispensing device 12 with which the dosing pump 10 is actuated. These three components form a uniformly manageable pump assembly, and due to the storage location specified on the drip tray, this assembly is stored on the drip tray 9 for the refilling process, in the orientation shown here, which ensures the greatest possible hygiene during refilling.

A flat light source 13 is mounted below the filler neck 6 on the front side 2 of the housing 1, the vertical extension of which corresponds approximately to the height of the refillable container 8 of the dosing dispenser 7. A pivoting door 14 with a handle bar 15 serves to open the front side 2 of the housing 1 to access or close a storage compartment (not visible here).

On the front 4 of the projection 3 of the housing 1 there is an on/off switch 16 and a rotary control 17. On the top of the housing 1 there is a maintenance flap 18, under which there is a filling pump (not visible here).

An operator who wants to refill the dosing dispenser 7 will 1 First, put the refill device shown into operation using the on/off switch 16, which can also be designed as a standby switch, and then unscrew the pump assembly of the dosing dispenser 7, consisting of the dosing pump 10, the suction pipe 11, and the dispensing device 12, from the container 8. The pump assembly 10, 11, 12 is then placed on the designated marking on the drip tray 9.

Switching on the refill device also activates the light source 13. To refill the container 8 of the dosing dispenser 7, the operator holds the container 8 below the filler neck 6. This places it directly in front of the light source 13. Since the container 8 is made of translucent material and the light source 13 is located directly behind the container 8 as seen by the operator and illuminates it due to its translucency, the operator can precisely determine the fill level of the liquid product in the container 8 using transmitted light and thus monitor how quickly the refilling process is progressing and when the container 8 reaches the desired fill level.

The operator can control the refilling process using the rotary control 17 or, optionally, a pedal (not shown). By overcoming an initial detent, the filling pump (not shown here) is activated, and by turning the rotary control 17, the filling pump's delivery speed can be controlled, allowing the operator to very intuitively initiate and execute the refilling process, monitor it using the transmitted light, decelerate it in a timely manner, and stop it at the desired fill level.

After the refilling process is complete, the pump assembly 10, 11, 12 is taken up again, screwed onto the container 8 of the dosing dispenser 7, and the dosing dispenser 7 is returned to its place of use. There is no risk of dripping from the filler neck 6, since the filler neck 6 is equipped with a duckbill valve 19 ( 2 ) and, on the other hand, a control of the filling pump is designed in such a way that after a stop of the filling pump, which is initiated by turning back the regulator 17, a short backward movement of the filling pump takes place in order to reduce the pressure in a delivery line (not shown here) to the filling nozzle 6.

2 shows the refill device 1 in the same view, but here the housing 1 is open. The pivoted door 14 opens a space 20 inside the housing 1, which is designed to accommodate a storage tank 21 ( 3 ) serves.

In order to bring the storage tank 21 into the storage room 20, there is a drawer 22, which here designed as a pull-out, mounted in the housing 1. By means of this drawer 22, the storage tank 21 ( 3 ) can be very easily inserted into or removed from the adjustment space 20.

How 2 also shows, a connection device 23 for connecting the storage tank 21 is arranged in the adjustment space 20, and it can be pulled out of the adjustment space 20 by means of a correspondingly long suction line 24 of the filling pump (which is not visible here) in order to be able to connect the storage tank 21 outside the adjustment space 20.

In 2 Finally, it can be seen that the filling nozzle 6 is provided with a duckbill valve 19, which acts as a check valve and at the same time prevents dripping.

For the remaining features of the refill device, which are available in both 2 as well as in 1 are identical reference numerals as in 1 used, so that the above description of the 1 can be referred to.

How the storage tank 21 is placed in the drawer 22 and connected there, in order to then be retracted with the drawer 22 into the adjustment space 20 of the housing 1, is shown in 3 Here, too, elements are shown that are present in both 3 as well as in 2 or in 1 are provided with identical reference symbols, so that reference is made to the preceding description.

The storage tank 21 shown here, which is already inserted into the drawer 22 so that it can be moved into the storage space 20 together with the drawer, is a tank holding 10 liters of a liquid product with a connecting piece 25 attached to its top. As shown, the connecting device 23 attached to the suction line 24 is placed onto this connecting piece 25 in order to be able to remove the contents of the storage tank 21 by means of the filling pump (not visible here).

4 again shows the same view as the previous figures, but with the housing walls omitted to reveal details inside the housing.

Thus, the storage room 20 with drawer 22 and storage tank 21 standing on it can be seen first, although the swing door 14 is closed. The elements that are in both 4 as can also be seen in the preceding figures, are again provided with identical reference symbols, so that reference is made to the preceding descriptions.

An upper cover surface of the housing 1 and the maintenance flap 18 ( 1 to 3 ) are in 4 omitted in order to make the components of the present embodiment of a refilling device according to the invention visible. The most important component here is likely the filling pump 26, which, according to the invention, is designed as a hose pump 27 or peristaltic pump.

In 5 , a top view of the refill device 4 , the peristaltic pump 27 is more clearly visible in that an inlet 28 of the peristaltic pump 27 with the attached suction line 24 and an outlet 29 of the peristaltic pump 27 with a discharge line 30 can be seen. The suction line 24 leads from the inlet 28 of the peristaltic pump 27 to the connection device 23 (cf. 2 ), while the delivery line 30 connects the outlet 29 of the peristaltic pump 27 with the filling nozzle 6. In the peristaltic pump 27, a pump hose 31 runs from the inlet 28 to the outlet 29, which 5 is only indicated by dashed lines. In a rotating housing 32, a number of rollers or sliding shoes move on a rotor (these components are not visible) to move the liquid product drawn from the storage tank 21 forward in the pump hose 31, naturally without coming into direct contact with the liquid product, which is hermetically separated from the environment in the pump hose 31. The operation of a peristaltic pump, as used according to the invention, is known in detail.

The liquid product is thus transported from the storage tank 21 directly into the filling nozzle 6 through a hose line formed by the suction line 24, the pump hose 31 and the delivery line 30, without coming into contact with any other components, thus meeting the highest hygienic requirements. At the same time, the hose pump 27 and its pump hose 31 can be removed through the maintenance flap 18 ( 1 to 3 ) can be easily maintained or replaced if necessary.

In addition to the filling pump 26, a compartment 33 for the electronics is provided in the housing 1. It contains a control unit 34 for the filling pump 26, a power supply unit 35, a mains connection 36 with appropriate protection, and an additional connection 37 for supplying additional refilling devices with electrical power.

List of reference symbols:

1

Housing

2

Front

3

projection

4

Front (of 3)

5

Bottom (of 3)

6

Filling nozzle

7

Dosing dispenser

8

Containers (of 7)

9

drip tray

10

Dosing pump (of 7)

11

Intake pipe (of 7)

12

Dispensing device (of 7)

13

light source

14

Swing door

15

Handle bar

16

On-off switch

17

rotary control

18

Maintenance hatch

19

Duckbill valve

20

Setting room

21

storage tank

22

Drawer

23

Connection device

24

intake line

25

connecting piece

26

filling pump

27

Peristaltic pump

28

inlet

29

Outlet

30

conveyor line

31

pump hose

32

Rotating housing

32

Subject (in 1)

34

steering

35

power supply

36

Mains connection

37

Connection (further)

QUOTES CONTAINED IN THE DESCRIPTION

This list of documents submitted by the applicant was generated automatically and is included solely for the convenience of the reader. This list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• WO 2021/093972 A1 [0005]
• US 2018/0265345 A1 [0006]

Claims (16)

Refill device, in particular for dosing dispensers for providing and dosing liquid products, preferably cosmetic products with detergent substances or care products for body and hair care, comprising a single-part or multi-part housing (1), a connection device (23) for connecting a storage tank (21) for a liquid product and for removing the liquid product therefrom, an externally accessible adjustment space (20) for the storage tank (21) provided in the housing (1) or a connecting device provided on the housing (1) for connecting the housing (1) to the storage tank (21), a filler neck (6) arranged on the housing (1) for a dosing dispenser (7), and a filling pump (26) integrated in the housing (1) or attached to the housing (1) for conveying the liquid product from the connection device (23) to the filler neck (6), characterized in that the filling pump (26) is designed as a peristaltic pump (27), whose inlet (28) is connected directly or via a suction line (24) to the connecting device (23) and whose outlet (29) is connected directly or via a delivery line (30) to the filling nozzle (6). Refill device according to Claim 1 , characterized in that the hose pump (27) is arranged in a pump compartment in the housing (1) which is accessible from the outside. Refilling device according to one of the Claims 1 or 2 , characterized in that the housing (1) of the refilling device is provided with an externally accessible adjustment space (20) for the storage tank (21) and that this has a drawer (22) for adjusting and pushing or pulling the storage tank (21) into or out of the housing (1). Refilling device according to at least one of the Claims 1 until 3 , characterized in that the housing (1) of the refilling device is provided with an externally accessible adjustment space (20) for the storage tank (21) and that this can be closed with a pivoting door (14). Refilling device according to one of the Claims 3 or 4 , characterized in that the connecting device (23) for connecting the storage tank (21) is arranged within the adjustment space (20) and is preferably designed to be extendable therefrom. Refilling device according to at least one of the Claims 1 until 5 , characterized in that the filling nozzle (6) is provided with a backflow preventer, in particular a check valve or a duckbill valve (19). Refilling device according to at least one of the Claims 1 until 6 , characterized in that the filling nozzle (6) is arranged on a front side (2) of the housing (1), the front side (2) having a projection (3) with a front (4) and a bottom (5) in an upper region and the filling nozzle (6) is seated on the bottom (5) of the projection (3) in such a way that it dispenses the liquid product downwards. Refill device according to Claim 7 , characterized in that a first holder for a container (8) of a dosing dispenser (7) to be refilled is attached to the front side (2) of the housing (1), the first holder being provided in particular to hold the container (8) on the filler neck (6) during refilling. Refill device according to Claim 8 , characterized in that a second holder for components of a dosing dispenser (7) is attached to the front side (2) of the housing (1), which components are to be removed from the container (8) to be refilled for the refilling process. Refilling device according to at least one of the Claims 7 until 9 , characterized in that operating elements for the filling pump (26) are arranged on the front (4) of the projection (3). Refilling device according to at least one of the Claims 7 until 10 , characterized in that on the front side (2), below the filling nozzle (6), a flat or linear light source (13) is arranged, which is intended to illuminate the container (8) during the refilling process. Refilling device according to at least one of the Claims 1 until 11 , characterized in that it further comprises a number of storage tanks (21) which collapse when the liquid product stored therein is removed. Refilling device according to at least one of the Claims 1 until 12 , characterized in that the refilling device contains a control (34) for the hose pump (27), this control (34) being designed such that it regulates the pumping power of the hose pump (27) via a user input. Refill device according to Claim 13 , characterized in that a rotary control (17) for user input is attached to the housing (1), wherein the rotary control (17) in particular is provided with an integrated on/off function and/or that a pedal is provided for user input. Refilling device according to one of the Claims 13 or 14 , characterized in that the control (34) is designed such that the hose pump (27) runs backwards for a short time after it has stopped in order to prevent dripping at the filler neck (6). Refilling device according to at least one of the Claims 1 until 15 , characterized in that a mains connection (36) for a mains cable for supplying energy to the filling pump (26) and at least one additional connection (37) for a power supply of a further refilling device are attached to the housing (1).