Outlet nozzle arrangement for a beverage dispensing apparatus

Abstract

The present disclosure provides a beverage dispensing apparatus comprising: a nozzle arrangement comprising a plurality of nozzles, wherein at least one nozzle of the plurality of nozzles is an outlet nozzle for dispensing a drinkable fluid, and wherein at least one nozzle of the plurality of nozzles is a cleaning backflow nozzle; and a cleaning chamber housing repeatedly movable between a stowed position and a deployed position to clean the nozzle arrangement, the cleaning chamber housing comprising an internal cavity into which the plurality of nozzles are sealably receivable when in the deployed position.

Description

Technical Field

[0001] This disclosure relates to an outlet nozzle of a beverage dispensing device configured to be cleaned by a cleaning fluid. Background Technology

[0002] Beverage dispensing equipment for preparing and dispensing beverages is well known in the art. Typically, these machines include one or more outlet nozzles from which the beverage is dispensed into a container. The outlet nozzles require regular cleaning to maintain the quality of the beverage.

[0003] WO2018 / 208156 describes an apparatus for preparing beverages, comprising at least one beverage outlet nozzle for discharging the beverage into a beverage container, and a cleaning structure for cleaning the outer surface of the beverage outlet nozzle. The cleaning structure can be moved from an idle position to a cleaning position using a cam and a pair of support members arranged to pivot forward. In use, the cleaning structure provides a sealed cavity for each nozzle to allow cleaning of the exterior of each nozzle and provides a common drain from which used cleaning fluid can be discharged under gravity.

[0004] CH707837 discloses a beverage machine including a downwardly directed outlet for dispensing beverages prepared in the machine into a lower container. A bucket is arranged in the area of ​​the outlet, moving between a first position and a second position. In the first position, the prepared beverage is dispensed; in the second position, the bucket is below the outlet and can be filled with fluid for cleaning. Once cleaning is complete, the bucket is moved back to the first position, causing fluid to pour from the bucket into a drain pipe.

[0005] The present invention seeks to provide an improved outlet nozzle arrangement structure for a beverage dispensing device. Summary of the Invention

[0006] The present invention provides a beverage dispensing device according to the appended claims.

[0007] This invention provides a beverage dispensing device. The beverage dispensing device may include: a nozzle arrangement structure comprising a plurality of nozzles, wherein at least one of the plurality of nozzles is an outlet nozzle for dispensing drinkable fluid, and wherein at least one of the plurality of nozzles is a cleaning return nozzle. The beverage dispensing device may include: a cleaning chamber housing capable of repeatedly moving between a stored position and an extended cleaning position. The cleaning chamber housing may include an internal cavity in which the plurality of nozzles are accommodated when in the extended position. The internal cavity may be sealed.

[0008] The cleaning return nozzle can be configured to remove cleaning fluid from the cleaning chamber housing. The cleaning return nozzle can draw in the cleaning fluid via suction. The cleaning return nozzle can be in fluid communication with a pump.

[0009] The cleaning chamber housing may include a base and at least one sidewall. The sidewall may extend upward from the base. The base and the sidewall may define the internal cavity.

[0010] The plurality of nozzles may be configured to extend into the internal cavity when the cleaning chamber housing is in the deployed position. The cleaning return nozzle may be positioned at the lowest point of the internal cavity relative to at least one outlet nozzle. The cleaning return nozzle may be located within a reservoir area of ​​the cleaning chamber housing. The reservoir may be the lowest portion of the cleaning chamber housing into which cleaning fluid may flow from the outlet nozzle. The cleaning return nozzle may be located near the base of the cleaning chamber housing.

[0011] The internal cavity may include a peripheral seal that abuts against the nozzle arrangement to seal the plurality of nozzles together within the internal cavity. The peripheral seal may be located at the upper edge of the sidewall of the cleaning chamber housing. When the cleaning chamber housing is in the deployed position, the peripheral seal may surround the plurality of nozzles. The seal may include a sealing element, such as an O-ring or a gasket. The sealing element may abut against a corresponding sealing surface of the nozzle arrangement.

[0012] The plurality of nozzles may extend from a proximal end to a distal end of the body attached to the nozzle arrangement structure, wherein the distance between the proximal end and the distal end defines the length of each nozzle. The length of the cleaning return nozzle may be the longest among the plurality of nozzles.

[0013] The plurality of outlet nozzles may include at least one or more nozzles from the group consisting of: coffee outlet nozzle, milk outlet nozzle, water outlet nozzle. In some embodiments, the water outlet nozzle may be configured to provide the cleaning return nozzle. The outlet nozzle or each of the plurality of outlet nozzles may be configured to provide cleaning fluid during the cleaning process.

[0014] The cleaning chamber housing may include a recess for each outlet nozzle. Each recess may include a recess sidewall defining a cleaning chamber that accommodates the end of the corresponding outlet nozzle. The recess sidewall may be configured to redirect cleaning fluid ejected from the corresponding outlet nozzle along the outer surface of the corresponding outlet nozzle.

[0015] Each cavity may include a cavity base. The cavity base is raised relative to the base of the cleaning chamber housing. The cavity may include or form part of a base or upright member extending from the base of the cleaning chamber housing. The base may be a cylindrical support. The cavity may include a recess in the end of the base.

[0016] Each cavity sidewall may include a cavity drain pipe from which residual cleaning fluid can flow out of the cavity and into the cleaning chamber housing. The cavity drain pipe includes an orifice in the sidewall of each cavity. The orifice may be a notch extending from the upper edge of the sidewall to the base. The drain pipe may face the cleaning return nozzle to direct the outflowing residual cleaning fluid to the cleaning return nozzle.

[0017] The device may also include a drive mechanism operable to move the cleaning chamber housing between the retracted position and the deployed position. The drive mechanism may be a reciprocating drive, enabling the cleaning chamber housing to repeatedly move between the retracted position and the deployed position, and vice versa.

[0018] The drive mechanism may include a reciprocating track along which the cleaning chamber housing is driven to move between a stored position and an deployed position. The reciprocating track may be curved. The drive mechanism may also include a drive arm rotatable to allow the cleaning chamber housing to slide along the reciprocating track. The drive arm may be coupled to the cleaning chamber housing via a drive link. The drive link may be pivotally connected to the drive arm and the cleaning chamber housing at its respective ends. The drive link may be configured to articulate relative to the drive arm and the cleaning chamber housing during actuation of the drive arm. The drive arm may be rotated by an electric motor. The electric motor may be connected to the drive arm via a worm gear transmission. The worm gear transmission may include a worm and a worm wheel. There may be multiple drive arms, one on each side of the cleaning chamber housing, each drive arm configured to drive the cleaning chamber housing along a corresponding reciprocating track on each side of the cleaning chamber housing. Each drive arm may be rotated by a common actuator.

[0019] The reciprocating track accommodates the reciprocating engagement member of the cleaning chamber housing. The reciprocating engagement member can be configured to rotate within and slide along the reciprocating track under the action of the drive arm. Therefore, when the cleaning chamber housing is pushed along the reciprocating track by the drive arm, the cleaning chamber housing rotates relative to the reciprocating track as it traverses along the reciprocating track.

[0020] The reciprocating engagement member can be located above the sealing surface of the cleaning chamber housing. Positioning the reciprocating engagement member above the sealing surface of the cleaning chamber housing allows the cleaning chamber housing to be suspended below the nozzle arrangement structure, while the reciprocating track is positioned above the nozzle arrangement structure and concealed within the housing of the device. The reciprocating engagement member can be located at the distal end of an arm that extends upward from the cleaning chamber housing or its upper surface.

[0021] The reciprocating engagement member may be disposed at a first end of the cleaning chamber housing, and the drive arm may be drivably connected to a second end of the cleaning chamber housing. When in the deployed position, the first end may be located at the front of the nozzle arrangement structure, and when in the retracted position, the first end may be located at the rear of the nozzle arrangement structure. In both the retracted and deployed positions, the second end may be located at the rear of the nozzle arrangement structure.

[0022] The cleaning chamber housing can be rotatably abutted against the nozzle arrangement structure. The drivable connection can be lifted by the drive arm to pivot the cleaning chamber housing about the reciprocating engagement member.

[0023] The device may also include one or more beverage preparation modules. These modules may include a coffee module configured to prepare (e.g., brew) coffee and a mixing module configured to prepare a mixed fluid from a mixed fluid (e.g., milk, water, etc.) and edible dry powders (e.g., chocolate, soup, sweeteners, etc.). The cleaning chamber housing may form part of a cleaning loop in which cleaning fluid circulates through the one or more beverage preparation modules and the cleaning chamber housing. The device may also include a hot water module configured to heat water circulating around the cleaning loop.

[0024] The cleaning circuit can be a closed circuit and / or an open circuit terminating in an external drain pipe. The external drain pipe can be connected to the cleaning chamber.

[0025] The cleaning circuit may include multiple beverage preparation modules. The cleaning circuit may be configured to connect the water heater module and the cleaning module in a closed loop, thereby enabling the preparation of a cleaning fluid. The cleaning circuit may be configured to include the cleaning module and one or more beverage preparation modules. The cleaning circuit may include a cleaning chamber. The cleaning chamber may be connected to each beverage preparation module via at least one of the outlet nozzles. The cleaning chamber may be connected to the cleaning module via a cleaning return nozzle.

[0026] According to this disclosure, a method for cleaning a beverage dispensing device is provided. The beverage dispensing device can be any beverage dispensing device disclosed herein.

[0027] The method may include: sealingly engaging the nozzle arrangement structure and the cleaning chamber housing to provide a cleaning chamber around the plurality of nozzles; and circulating cleaning fluid through the cleaning chamber. This circulation of the cleaning fluid through the cleaning chamber may include providing an inflow of cleaning fluid from one or more of the plurality of nozzles, and extracting the cleaning fluid using a cleaning return nozzle. The cleaning return nozzle may be configured to draw the cleaning fluid from the cleaning chamber. The cleaning return nozzle may be fluidly connected to a pump. The pump may be provided by the cleaning module.

[0028] When the beverage dispensing device includes a beverage preparation module, the method may further include circulating the cleaning fluid through the beverage preparation module to an external drain or the cleaning module. The method may further include performing one or more stages of a residual rinsing phase, in which hot or cold water is circulated through one or more of the beverage preparation modules via the cleaning chamber to the external drain; a disinfection phase, wherein the cleaning fluid circulates in a closed loop including the cleaning chamber through the one or more beverage preparation modules and the cleaning module before being connected to the external drain via the cleaning chamber; and a cleaning fluid rinsing phase, wherein water rinses one or more of the beverage preparation modules via the cleaning chamber to the external drain. The method may further include removing residual fluid from the cleaning chamber using an airflow or a fluid flow.

[0029] The device can heat the cleaning fluid to a temperature of at least 50°C, preferably at least 60°C, more preferably at least 70°C, and most preferably about 75°C.

[0030] The device can circulate the cleaning fluid through all subsystems at elevated temperatures for a selected time period, for example, at least 2 minutes, preferably at least 3 minutes, more preferably at least 4 minutes, and even more preferably at least 5 minutes.

[0031] The cleaning fluid can then be discharged from the dispensable fluid circuit. Preferably, all subsystems can then be flushed to remove any residual cleaning fluid. The outlet base can then be opened to return the device to the dispensing mode.

[0032] The device can be used in an intermediate rinse mode, in which the outlet base can be closed to isolate the dispensable fluid source, allowing the device to enter the intermediate rinse mode. Preferably, all subsystems can then be rinsed to remove any dispensable fluid residue from the dispensable fluid loop. Afterward, the outlet base can be opened to return the device to the dispensing mode.

[0033] Those skilled in the art will understand that, except where mutually exclusive, features relating to any aspect, implementation, or example described herein can be applied to any other aspect, implementation, or example with necessary modifications. Furthermore, unless mutually exclusive, any feature described herein can be applied to any aspect and / or combined with any other feature described herein. Attached Figure Description

[0034] To provide a clearer understanding of the invention, one or more embodiments of the invention will now be described by way of example only with reference to the accompanying drawings, in which:

[0035] Figure 1 The nozzle arrangement structure and cleaning chamber housing according to the present invention are shown;

[0036] Figure 2 It shows Figure 1 The drinkable fluid is dispensed from the lower side of the nozzle arrangement shown.

[0037] Figure 3a and Figure 3b A side view of the drive mechanism is shown, which can be used to move the cleaning chamber housing to the storage position. Figure 3a ) and unfolding position ( Figure 3b Move between;

[0038] Figures 4a to 4h It shows the different stages Figure 3a and Figure 3b The drive mechanism; and,

[0039] Figure 5 A schematic diagram of a beverage dispensing device including the nozzle arrangement structure and the cleaning chamber housing of this disclosure is shown. Detailed Implementation

[0040] Throughout the following description, front, forward, and anterior refer to the front of the beverage dispensing device that faces the user and receives the beverage container. Rear, backward, and rear portion can be considered by the user of the beverage dispensing device as being behind the nozzle arrangement. Axis may refer to an axis extending between the front and rear portions of the nozzle arrangement. Up and down / below should refer to the direction of use.

[0041] Figure 1 and Figure 2 A nozzle arrangement structure 10 including multiple nozzles 12a-12e is shown. At least one of the nozzles 12a can be a beverage dispensing nozzle. At least one of the nozzles can be a cleaning return nozzle 12e. Figure 1 The image also shows a cleaning chamber housing 14 that can be repeatedly moved between an extended cleaning position and a storage position. Figure 1 The cleaning chamber housing 14 in the storage position behind the nozzle arrangement structure 10 is shown. For clarity, the surrounding structure and drive mechanism of the beverage dispensing device are not shown. Figure 3a and Figure 3b as well as Figures 4a to 4h The housing and drive mechanism are described. Figure 5 An example of a beverage dispensing device, which may include a cleaning chamber housing 14 and a nozzle arrangement structure 10, is shown and will be described further below.

[0042] The cleaning chamber housing 14 may include an internal cavity 16 in which a plurality of nozzles 12a-12e are hermetically housed when the cleaning chamber housing 14 is in the deployed position. Thus, when the nozzles 12a-12e are hermetically housed in the internal cavity 16, the cleaning chamber housing 14 and the nozzle arrangement structure 10 cooperate to form a cleaning chamber. The cleaning chamber includes all the plurality of nozzles 12a-12e within the same sealed volume, such that the nozzles 12a-12e are in fluid communication with the internal cavity 16 and at least one cleaning return nozzle 12e. Arranging the outlet nozzles 12a-12e within the same cleaning chamber allows cleaning fluid to be collected in a common area and removed from that common area using the cleaning return nozzle 12e.

[0043] The cleaning return nozzle 12e can be used to pump cleaning fluid out of the cleaning chamber. Using a pump allows the flow rate of cleaning fluid to be increased along the inner and outer surfaces of the outlet nozzles 12a-12d, and allows the cleaning of the outlet nozzles 12a-12d to form part of the cleaning fluid loop.

[0044] The cleaning fluid can be pumped into the cleaning chamber together or separately via outlet nozzles 12a-12d and pumped out using the cleaning return nozzle 12e. The cleaning fluid circuit may include multiple components within the beverage dispensing device and allow the cleaning fluid to circulate through these components before being sprayed into the external drain pipe.

[0045] Another advantage of providing a single cleaning chamber is that it allows for cleaning of the area surrounding the nozzle arrangement 10, from which nozzles 12a-12e extend. This area may have been contaminated by the dispensing fluid splashed back onto the nozzles 12a-12e.

[0046] Providing a cleaning return nozzle offers a convenient and space-saving way to remove cleaning fluid from the cleaning fluid chamber. Therefore, there is no need to install a drainage channel or drain pipe as part of the cleaning chamber housing.

[0047] Figure 2 The lower side of the nozzle arrangement structure 10 is shown, exposing its outward-facing outer side from which multiple nozzles 12a-12e extend. The outer side is arranged above the container, allowing potable fluid to be dispensed into the container below. The outer side may also provide a sealing surface 18 against which the cleaning chamber housing 14 abuts to define the cleaning chamber. The sealing surface 18 surrounds the multiple nozzles, allowing them to be housed within the same sealing chamber. Figure 1 As shown, the back surface of nozzles 12-12e may include various connection features 13 to which fluid delivery pipes are connected during use. Therefore, fluid dispensed from nozzles 12a-12d enters... Figure 1 The nozzle arrangement structure 10 shown is on the back side, and from... Figure 2 The side shown is away from the nozzle arrangement structure.

[0048] The nozzle arrangement structure 10 may include a nozzle arrangement structure body 20, from which a plurality of nozzles 12a-12e extend. For example... Figure 1 and Figure 2 As shown, there may be multiple outlet nozzles 12a-12d and a single cleaning return nozzle 12e. Although other configurations are also possible, in some embodiments there may be a single outlet nozzle 12a and one or more cleaning return nozzles 12e. For example, Figure 1 and Figure 2 The nozzles 12a-12e shown may include a water outlet nozzle 12d, a coffee outlet nozzle 12c, a chocolate outlet nozzle 12d, a milk nozzle 12a, and a cleaning return nozzle 12e. In other embodiments, the nozzles may include any consumable fluid and may include any one or more of coffee, chocolate, soup, tea, soft drinks, or water outlet nozzles, etc. The nozzles 12a-12e may extend out of a plane from the outer surface of the nozzle arrangement structure 10. The outer surface may be planar. The nozzle arrangement structure body 20 may include one or more attachment features 15 for attaching the nozzle arrangement structure to a beverage dispensing device.

[0049] The cleaning return nozzle 12e can be configured to extend into the internal cavity 16 of the cleaning chamber housing 14, such that cleaning fluid introduced into the internal cavity 16 can be drawn away and removed by the cleaning return nozzle 12e. Thus, the cleaning return nozzle 12e can extend into the internal cavity 16 and terminate at the lowest point of the internal cavity 16 or near the base 22 of the cleaning chamber housing 14. In the illustrated embodiment, the area into which the cleaning return nozzle 12e extends into the cleaning chamber housing 14 includes the flat base 22; however, it should be understood that the cleaning chamber housing 14 may include one or more recesses or other forms of hollow space to provide a reservoir in which cleaning fluid can be collected during use and in which the cleaning return nozzle 12e can be accommodated.

[0050] In some embodiments, the base 22 of the cleaning chamber housing 14 may be arranged to be horizontal in the deployed position, or may be tilted toward the cleaning return nozzle 12e, such that cleaning fluid falls toward the cleaning return nozzle 12e to improve the extraction of cleaning fluid. The tilt of the base 22 may be provided by the general orientation of the cleaning chamber housing 14 in the deployed position, or by the tilt of the base 22 relative to the upper surface of the sealing surface 18 of the adjacent nozzle arrangement structure. The tilt of the base 22 may be in a single plane or toward a single point, such that the streamlines between each output nozzle gradually change toward the cleaning return nozzle 12e. The region 12e' of the cleaning chamber housing 14 opposite the cleaning return nozzle 12e may be referred to as the reservoir region. Positioning the cleaning return nozzle 12e in the reservoir region allows cleaning fluid to be removed from the internal cavity 16 to a level below the terminals of the beverage outlet nozzles 12a-12d.

[0051] As described above, the nozzle arrangement structure 10 may include a nozzle arrangement structure body 20 from which nozzles 12a-12e extend. In the illustrated embodiment, the nozzle arrangement structure body 20 includes a plate-like structure from which nozzles 12a-12e extend from the lower outer side of its generally planar surface; however, this is not a limitation, and other forms are possible within the scope of this disclosure. For example, the nozzle arrangement structure 10 may include sealing elements or other features to provide an improved sealing surface 18 against which the cleaning chamber housing 14 may abut.

[0052] Nozzles 12a-12e are typically cylindrical and have a central axis extending perpendicularly from the surface of the nozzle arrangement structure body 20. The diameter of nozzles 12a-12e may vary depending on the application and nozzle type.

[0053] In the cleaning configuration, nozzles 12a-12e extend toward the base 22 of the cleaning chamber housing, and their length determines their distance from the base 22. As described above, the cleaning return nozzle 12e can be placed closest to the base 22 and can be the longest nozzle among the plurality of nozzles 12a-12e. The length of nozzles 12a-12e can be measured from the outer surface of the nozzle arrangement structure body 20.

[0054] The cleaning chamber housing 14 includes a plate-like structure with a hollow portion on one side defining an internal cavity 16 in which a plurality of nozzles 12a-12e are received. The internal cavity 16 includes a base 22 and at least one peripheral sidewall 24. The upper end of the internal cavity 16, facing and receiving the nozzles 12a-12e, is generally open. Therefore, in use, the base 22 is positioned on the underside of the nozzle arrangement structure 10 to provide a tray for receiving cleaning fluid and guiding it to the cleaning return nozzles 12e. In the deployed position and during the cleaning process, the outer surface of the base (not visible in the view) provides the outer surface of the nozzle arrangement structure 10.

[0055] The peripheral sidewalls 24 of the internal cavity 16 are typically circular to define a circular cavity that accommodates the outlet nozzles 12a-12e, but other shapes may be used in some embodiments.

[0056] The distal end of the sidewall 24 terminates at the upper surface 26 of the cleaning chamber housing 14, which faces the nozzle arrangement structure 10 in the deployed position. The upper surface 26 defines a sealing surface abutting against the nozzle arrangement structure sealing surface 18 to define and seal the cleaning chamber. The sealing surface 26 may include a sealing element 28, such as a gasket or O-ring, to aid in sealing. The sealing element 28 may be disposed on the upper surface 26 of the cleaning chamber housing and / or the nozzle arrangement structure 10. In some embodiments, it may be preferred to provide the sealing element 28 on the cleaning chamber housing 14, as this allows the opposing surfaces of the nozzle arrangement structure 10 to be flat and smooth. From a hygienic and aesthetic point of view, having flat and smooth walls surrounding the nozzles 12a-12e on the nozzle arrangement structure 10 may be considered preferred.

[0057] The sealing element 28 can be positioned at the terminal edge of the sidewall 24 to confine the sealing chamber to the internal cavity 16. However, in other embodiments, the seal can be placed in other locations.

[0058] The internal cavity 16 of the cleaning chamber can have generally smooth walls and a flat base 22 with uniformly circumferentially curved sidewalls. In this way, the internal cavity 16 can accommodate these nozzles using a common volume. However, from... Figure 1 As can be seen from the embodiments shown, the cleaning chamber housing 14 may include one or more features to help clean multiple nozzles, outlet nozzles 12a-12d.

[0059] Figure 1 Multiple internal cavities 30 are shown, in which nozzles 12a-12d can be individually accommodated. As shown by the dashed circle 12e', the area without cavities reflects the location of the cleaning return nozzle 12e. The cavity 30 can be in the form of a bowl, defining a cavity body (which may be referred to as a cleaning chamber) sized to easily accommodate the corresponding outlet nozzle. Each cavity 30 includes a base 30a and a sidewall 30b extending upward from the base 30a to define a nozzle receiving cavity / bowl. Nozzles 12a-12d are accommodated within the respective cavity 30 such that a gap exists between the base 30a and the sidewall 30b around the outer surface of the nozzle at the nozzle tip.

[0060] The distance between the nozzles 12a-12d and the opposing surfaces of the cavity 30 provided by the base 30a or sidewall 30b can be appropriately sized to provide a fluid passage for the external flow of cleaning fluid around the nozzles 12a-12d. The distance between the nozzles 12a-12d and the sidewall 30b of the cavity can be uniform around the entire circumference of the nozzles 12a-12d, thereby contributing to a substantially uniform flow of cleaning fluid during use.

[0061] When the cleaning fluid is introduced into the cavity 30 from the outlet nozzles 12a-12d, it flows along the inner surface of the nozzles 12a-12d before being deflected by the base 30a of the cavity, and is guided outward along the outer surface of the nozzle through the sidewall 30b. As shown, the cavity 30 may be open at the end, allowing the fluid to flow freely over the top edge of the sidewall of the cavity 30 and into the volume of the inner cavity 16, as well as the reservoir 12e' which is drawn in by the common cleaning return nozzle 12e.

[0062] Each cavity 30 may rise from the base 22 of the cleaning chamber housing and be formed on or as part of an upright member / base extending from the base 22. Each base 30a may be at the same height or in an elevated position relative to the base 22 of the cleaning chamber housing, and each base 30a may be at a different height relative to the other bases and sidewalls 30b. It should be understood from the foregoing that the nozzles 12a-12d may be arranged concentrically above the cavities 30.

[0063] To prevent the cavities 30 from trapping cleaning fluid, each cavity 30 may be provided with a drain hole 30c, allowing water to flow into the internal cavity 16 of the cleaning chamber, which acts as a reservoir for the cleaning return nozzles 12e. The drain hole 30c can be any suitable orifice in the sidewall 30b or base 30a of the cavity 30, and can be appropriately sized to prevent excessive cleaning fluid from being discharged from the cavity during cleaning operations, thereby ensuring adequate flow around the outer surfaces of the nozzles 12a-12d. Figure 1 In the illustrated embodiment, the sidewall 30b is provided with a notch extending from the distal end of the sidewall 30b to the base 30c. The notch can be provided at any circumferential location around the sidewall 30b or the base 30a, but it can be seen that it can be provided near the cleaning return nozzle 12e so that residual cleaning fluid is discharged along a general trajectory in the direction of the cleaning return nozzle to help to remove fluid in a timely manner.

[0064] The movement of the cleaning chamber housing 14 is usually caused by Figure 1 Arrow 32 indicates this. Therefore, before being pushed upward to the lower side of the sealing nozzle arrangement structure to provide a sealed cleaning chamber, the cleaning chamber housing 14 moves forward from the rear of the nozzle arrangement structure 10 to the lower side of the nozzle arrangement structure 10.

[0065] In a preferred embodiment, the orientation of the cleaning chamber housing 14 may change when moving between the storage position and the deployment position, but may remain generally facing upward and / or toward the nozzle arrangement structure 10.

[0066] In order to move the cleanroom housing 14 from the storage position to the unfolded position and back, the beverage dispensing device may include a drive mechanism. Figure 3a and Figure 3b An example of the drive mechanism 300 is shown, in which the cleaning chamber housing 14 is in the stowed position and the deployed position, respectively.

[0067] The drive mechanism 300 may include a linear actuator with a reciprocating track 334 along which the cleaning chamber housing 14 is propelled and, in some embodiments, pivoted. The reciprocating track 334 may be provided by any suitable track along which the cleaning chamber housing 14 may be guided. The reciprocating track 334 may be a guide rail, slot, channel, groove, or any other suitable type of protrusion, recess, or hole. Figure 3a and Figure 3b The reciprocating track 334 shown includes an elongated slot in the wall 335 or other suitable structure located on the side of the nozzle arrangement structure 10. The wall 335 may be the wall of the nozzle arrangement structure housing 340 in which the nozzle arrangement structure 10 is disposed.

[0068] The nozzle arrangement structure housing 340 may include the housing or part of a beverage dispensing device, wherein the nozzle arrangement structure 10, the cleaning chamber housing 14, and / or the drive mechanism 300 are disposed. The nozzle arrangement structure housing 340 may include one or more walls and suitable features for mounting the nozzle arrangement structure 10, the drive mechanism 300, and the cleaning chamber housing 14.

[0069] The reciprocating track 334 can be configured to slidably accommodate one or more reciprocating engagement members 342 attached to the cleaning chamber housing 14. It should be understood that the form of the reciprocating engagement member 342 will depend on the form of the reciprocating track 334. In embodiments where the reciprocating track 334 is a slot, such as... Figure 3a and Figure 3b As shown, the reciprocating engagement member 342 can be a protrusion, such as a pin, accommodated within a slot. The engagement member 342 can be configured to slide and rotate along the length of the reciprocating track 334. In this way, the reciprocating engagement member 342 can define an axis of rotation about which the cleaning chamber housing 14 can rotate / pivot.

[0070] The advantage of using the reciprocating engagement member 342, which is slidably and rotatably engaged within the track 334, is that it allows for axial movement of the cleaning chamber housing 14 and pivoting relative to the nozzle arrangement structure 10. Thus, the cleaning chamber housing 14 can change its angular orientation as it traverses the length of the reciprocating track 334. This allows the cleaning chamber housing 14 to pivot away from the nozzle arrangement structure 10, allowing it to move below the nozzle arrangement structure 10, and also allows the cleaning chamber housing 14 and the nozzle arrangement structure 10 to be pressed together by the pivoting action. Furthermore, the sliding pivoting arrangement means that a simple actuator arrangement (such as the actuator arrangement described herein) can be used to move the cleaning chamber housing 16, reducing the complexity of the actuator used to deploy the cleaning chamber housing 16. Another advantage of this arrangement is that, by properly shaping the reciprocating track, the clearance required to move the cleaning chamber housing from the storage position to the deployment position is minimized. Therefore, the risk of the cleaning chamber housing colliding with the beverage container remaining below the outlet nozzle is reduced when moving between the storage and deployment positions.

[0071] Although not shown in the accompanying drawings, there may be multiple reciprocating tracks 334 and drive mechanisms, one on each side of the nozzle arrangement structure 10, so that the cleaning chamber housing 14 can be supported on either side. Providing support on either side of the nozzle arrangement structure 10 allows for smoother movement of the cleaning chamber housing 14 between the retracted and deployed positions, and allows for improved and more uniform sealing between the cleaning chamber housing 14 and the nozzle arrangement structure 10.

[0072] The reciprocating engagement member 342 can be positioned at any suitable location on the cleaning chamber housing 14. In the illustrated embodiment, the reciprocating engagement member 342 is positioned towards the front of the cleaning chamber housing 14. With the reciprocating engagement member 342 positioned towards the front of the cleaning chamber housing 14 and the drive linkage 346, this member is actuated to move the cleaning chamber housing 14 rearward or rearward, levering the available length of the cleaning chamber housing 14 to pry it into place, thereby reducing the driving force required to form a seal.

[0073] A reciprocating engagement member 342 may be disposed above the plane of the base 22 of the cleaning chamber housing. To achieve this, the reciprocating engagement member 342 may be disposed on the distal end of an arm 344 extending upward from the upper surface of the cleaning chamber housing 14. The use of the arm 344 allows the corresponding reciprocating track 334 to be located above the lower surface of the nozzle arrangement structure 10, thereby concealing it within the nozzle arrangement structure housing 340 of the beverage dispensing device. The reciprocating engagement member 342 may extend outward from the arm 344 along the axis of rotation of the cleaning chamber housing 14. Figure 4c and Figure 4d Arm 344 can be seen more clearly in the middle.

[0074] It should be understood that in some embodiments, the positions of the reciprocating engagement member 342 and the drive link 346 can be reversed, such that the drive link 346 is attached to the front of the cleaning chamber housing 14 while the reciprocating engagement member 342 is located at the rear.

[0075] The distance between the reciprocating engagement member 342 and the sealing surface 26 of the cleaning chamber housing 14 corresponds to the vertical distance between the second end 338 of the reciprocating track 334 and the sealing surface 18 of the nozzle arrangement structure 10. Therefore, when the reciprocating engagement member 342 is in the second end 338 of the reciprocating track 334, the cleaning chamber housing 14 can abut against the sealing surface of the nozzle arrangement structure 10.

[0076] As shown in the figure, the reciprocating track 334 can extend from the rear of the nozzle arrangement structure 10 to the front of the nozzle arrangement structure 10, such that the axial movement of the cleaning chamber housing 14 is from the rear storage position to the front deployment position. The reciprocating track 334 can follow a meandering path between a first end 336 indicating the starting point and a second end 338 indicating the ending point. The starting point can be associated with the storage position, while the ending point is the deployment position.

[0077] The detour path can be a curved path, such that the height of the reciprocating engagement member 342 and the orientation of the cleaning chamber housing 14 relative to the nozzle arrangement structure 10 can be changed as the cleaning chamber housing 14 travels along the length of the reciprocating track 334. The first end 336 of the reciprocating track 334 can be above the second end 338 and the nozzle arrangement structure 10, such that the cleaning chamber housing 14 can be located above and behind the nozzle arrangement structure 10, the sealing surface 18 and / or the nozzles 12a-12e, and is completely concealed when in the stored position.

[0078] exist Figure 3a and Figure 3b In the illustrated embodiment, before turning upwards to the second end, the reciprocating track 334 extends forward and downward from the first end 336 toward a lowest point that is typically located at the approximate midpoint of the length of the track 334. The reciprocating track 334 is shown as continuously curved from the first end 336 to the second end 338, wherein the direction of curvature changes at a local inflection point at the second end 338 to terminate in a short horizontal section, where the reciprocating engagement member 342 rests in the deployed position. It should be understood that although the track 334 is shown as continuously curved, one or more vertical sections may be present, and the horizontal termination is optional. The reciprocating track 334 can be generally described as a shallow U-shape. It should be understood that the exact form of the shape of the reciprocating track 334 may differ in other embodiments. For example, the relative heights of the first end 336 and the second end 338 may be similar, or the second end 338 may be higher. Furthermore, the midpoint of the curvature may be offset toward either the first end 336 or the second end 338. Moreover, the track 334 may not be continuously curved and may include one or more vertical sections.

[0079] The first portion of the reciprocating track 334, extending from the first end 336 towards the lowest portion, includes a generally downward trajectory, causing the cleaning chamber housing 14 to move downward to a position where it can move forward to its lowest point below the nozzle arrangement structure 10. From here, the cleaning chamber housing 14 moves further forward such that the front end rises relative to the nozzle arrangement structure 10, and the rear portion of the cleaning chamber housing 14 rises towards the end of the track 334. From here, as further described below, pivoting the cleaning chamber housing 14 about the reciprocating engagement member 342 further elevates the rear portion of the cleaning chamber housing 14, creating a sealing contact between the cleaning chamber housing 14 and the nozzle arrangement structure 10.

[0080] The drive mechanism may include an actuator 348 configured to move the cleaning chamber housing 14 from a retracted position to an extended position in a reciprocating manner. The actuator 348 may be a linear or rotary actuator known in the art. The drive mechanism may be electrically operated and may include one or more electric motors 348, such as stepper motors.

[0081] The drive mechanism 300 may also include a crank, wherein rotation of the rotor causes linear movement of the cleaning chamber housing 14 via a drive link 346 (which may be referred to as a push rod). The drive link 346 may extend between the drive arm 350 of the rotor and the cleaning chamber housing 14 and may be rotatably / pivotibly connected at both ends to allow relative rotation with respect to the rotor and the cleaning chamber housing 14.

[0082] In the illustrated embodiment, an electric motor 348 engages with and rotates a rotor drive arm 350. The rotor drive arm 350 may be directly connected to the shaft of the electric motor 348 or may be connected via one or more gears. In the illustrated embodiment, the electric motor drives the drive arm 350 via a worm gear transmission 352. The worm gear transmission 352 may include a worm 352a and a worm wheel 352b, and may be configured to rotate the drive arm 350 on both sides of the cleaning chamber housing 14. Thus, the drive mechanism 300 may include a single motor to simultaneously drive both sides of the cleaning chamber housing 14.

[0083] Drive arm 350 is connected to shaft 354 of worm gear 352b via a suitable attachment (e.g., spline), such that rotation of shaft 354 causes drive arm 350 to rotate. The distal portion of drive arm 350 is pivotally attached to drive link 346, allowing drive link 346 and drive arm 350 to rotate relative to each other. The distal end of drive link 346 is pivotally attached to cleaning chamber housing 14, allowing drive link 346 and cleaning chamber housing 14 to rotate relative to each other. The opposite end of cleaning chamber housing 14 includes reciprocating engagement member 342 extending into reciprocating track 334. Engagement between reciprocating track 334 and reciprocating engagement member 342 allows cleaning chamber housing 14 to slide back and forth and to pivot relative to reciprocating track 334.

[0084] The arrangement also includes a spring-type tensioning member 356 that pushes the drive arm 350 and the drive link 346 apart, thereby pushing the cleaning chamber housing 14 forward when in the deployed position and / or lifting the cleaning chamber housing 14 when in the retracted position.

[0085] The lengths and positions of the connection points on the drive shaft 354, drive arm 350, drive link 346, and cleaning chamber housing 14, as well as the angle of travel of the drive arm, can vary depending on the specific embodiment and the desired travel path of the cleaning chamber housing 14. In some embodiments, the cleaning chamber housing 14 can be stored in a position approximately aligned with the initial descent of the reciprocating track 334, allowing the cleaning chamber housing 14 to move more easily along the track 334 when pushed forward. The angle between the plane of the cleaning chamber housing 14 and the horizontal plane can be between 0 degrees and 90 degrees, optionally between 40 degrees and 50 degrees, and optionally 45 degrees. When in the deployed position, the drive link 346 can be in a substantially vertical orientation, allowing the cleaning chamber housing 14 to be pushed more easily onto the nozzle arrangement structure 10.

[0086] The travel angle of the 350 drive arm can be between 180 degrees and 90 degrees.

[0087] Figures 4a to 4h The progressive movement of the cleaning chamber housing 14 and the drive mechanism 300 at different deployment stages is shown. Although reference numerals are not included in these figures, it should be understood that these features are consistent with... Figure 3a and Figure 3b The characteristics are consistent. More specifically, Figure 4a The cleaning chamber housing 14 is shown in its storage position, with Figure 3a same; Figure 4b The initial descent phase of the movement is shown, wherein the rotation of the drive arm causes the cleaning chamber housing 14 to descend from the housing of the nozzle arrangement structure 10; Figures 4c to 4e The continued rotation of the drive arm and the movement of the reciprocating engagement member along the reciprocating track are shown; Figure 4f The reciprocating engagement member that reaches the end of the reciprocating track is shown; Figure 4g The continued rotation of the drive arm is shown, which causes the rear end of the cleaning chamber housing to rise; and Figure 4h The diagram shows the end of the rotation phase of the drive arm, where the cleaning chamber housing 14 and the nozzle arrangement structure 10 are sealed together, allowing the cleaning process to be performed. Due to... Figures 4a to 4h The drive mechanism 300 corresponds to Figure 3a and Figure 3b The drive mechanism shown is therefore omitted to avoid obscuring the figures.

[0088] Once the cleaning process has been performed Figures 4a to 4h The steps shown can be reversed to move the cleaning chamber housing 14 from the unfolded position to the stored position.

[0089] It should be understood that any fluid remaining in the cleaning chamber housing 14 after the cleaning process may evaporate.

[0090] Figure 5 A beverage dispensing device 500 in the form of a coffee machine is shown. Reference numerals 5XX correspond to previously used reference numerals XX and 3XX. The coffee machine 500 includes an outlet nozzle arrangement structure 510 and a cleaning chamber housing 514 according to this disclosure. Although not shown, in use, the nozzle arrangement structure 510 will be positioned above the beverage container. The beverage container may be mounted on a drip tray.

[0091] As shown in the figure, the beverage dispensing device 500 may include one or more beverage preparation modules, such as a coffee module 558 configured to contain dry coffee powder and prepare coffee for dispensing from one of the outlet nozzles 12a-12d; a milk module 560 configured to provide heated and / or frothy milk for dispensing from one of the outlet nozzles 12a-12d; a mixing module 562 for mixing dry powder with a fluid, such as chocolate powder with water, for dispensing to another nozzle among the outlet nozzles 12a-12d; a cleaning module 564 configured to provide a cleaning agent for cleaning the various modules; and a water heater module 566 configured to heat water. It should be understood that the various modules 558 to 566 described herein are exemplary, and various embodiments may include fewer or more modules, and these modules may differ from those described. For example, the beverage dispensing device may be or include a facility for making soup or other edible products, or it may be a tea maker. Other examples may be known to those skilled in the art. Furthermore, modules 558 to 566 themselves can be considered conventional in many respects, so their internal workings will not be described in detail.

[0092] Modules 558 to 566 of the beverage dispenser 500 can each be connected to an outlet nozzle arrangement 510, which includes a plurality of outlet nozzles 512a to 512d as described above. Thus, the coffee maker 558 is connected to the first outlet nozzle 512a directly or via the water heater module 566, the milk module 560 is connected to the second outlet nozzle 512b, the mixing module 562 is connected to the third outlet nozzle 512c, and the water source 570 is connected to the fourth outlet nozzle 512d. Each of the water heater module 566, milk module 560, coffee module 558, and mixing module 562 is configured to receive water directly or indirectly from the water supply system and from the cleaning module 564. The cleaning module 564 is also connected to an external drain pipe 582 and a cleaning return nozzle 512e. The cleaning return nozzle 512e is connected to the external drain pipe 582. It should be understood that the external drain pipe 580 can be connected to the main drain pipe in the house where the device 500 is located, or to a suitable container for temporary waste storage.

[0093] The interconnection of the various modules 558 to 566 and the external drain pipe 582 is achieved through appropriate pipes and valves 574 to 580, which are selectively operated under the control of controller 568 to connect the various modules 558 to 566 and nozzles 12a-12e according to a desired configuration. These valves can be any suitable valves known in the art and may include check valves 572, 573, isolation valves 575 to 579, three-way valves 574, 580, etc., and valves 574 to 580 can be controlled via controller 568 according to a predetermined operating schedule required for beverage preparation and cleaning.

[0094] Inlet 570 supplies pressurized water to beverage dispensing device 500, as is known in the art. Although not shown, it should be understood that beverage dispensing device 500 or its modules may include one or more pumps for pumping various fluids between the module and outlet nozzles 512a-512e.

[0095] The presence of the cleaning chamber housing 514 enables the creation of fluid loops between each of the modules 558 to 566 and the drain pipe 582, and between each of the beverage preparation modules 558 to 562 and the cleaning module 564. Therefore, the presence of the cleaning chamber housing 514 provides an automatic and convenient way for cleaning fluids (e.g., cold or hot water, steam, or cleaning fluids containing cleaning agents) to pass through all the beverage preparation modules 558 to 562 and their respective piping systems, as well as the outlet nozzles 512a to 512d for each module 558 to 562 to be cleaned.

[0096] Because the cleaning chamber 584 is sealed, the cleaning fluid can circulate for a predetermined duration before being discharged into the external drain pipe 582. Different beverage preparation modules 558 to 562 can be cleaned individually. However, in some embodiments, the cleaning fluid can circulate through multiple beverage preparation modules 558 to 562 connected in series or parallel before being discharged into the drain pipe 582. It should be understood that more than [a certain amount of fluid may be required]. Figure 5 The conduits shown are further conduits to achieve sequential flow through modules 558 to 562.

[0097] The cleaning process may include a residual rinsing phase, wherein hot and / or cold water is sequentially rinsed through cleaning chamber 584 through each beverage preparation module 558 to 562 and the associated piping system before being discharged via external drain pipe 582. The cleaning process may additionally or alternatively include a disinfection phase, which includes the circulation of a cleaning fluid of cleaning agent through the various beverage preparation modules 558 to 562. In some embodiments, the cleaning fluid may be generated within cleaning module 564.

[0098] To generate a cleaning fluid within cleaning module 564, hot water may circulate through cleaning chamber 584 and associated piping system through cleaning module 564 and hot water module 566. Cleaning module 564 may be configured to add detergent to the hot water to prepare a hot cleaning fluid comprising an appropriate detergent. The hot water may circulate continuously around the cleaning module-hot water module loop to provide a properly mixed and heated cleaning fluid. Once prepared, a disinfection phase may continue by circulating the prepared cleaning fluid individually or in series through cleaning chamber 584 in a closed loop through each of the beverage preparation modules 558 to 562. Following the disinfection phase, the cleaning process may include a cleaning fluid rinsing phase, in which cold and / or hot water is used to rinse one or more of the beverage preparation modules 558 to 563 through cleaning chamber 584 to drain pipe 582. The cleaning phase may additionally or alternatively include air purification, in which air is allowed to flow through one or more of the various modules, ducts, nozzles 512a-e, and cleaning chambers to remove any residual cleaning fluid and / or water. Thus, the beverage dispensing device 500 may include one or more air sources and vents for introducing air and optionally forcing air through the cleanroom 584.

[0099] For example, to clean the coffee module 558, cold water can be supplied to the water heater module via isolation valve 575 and check valve 573. Once heated, valves 574 and 577 can be opened to allow hot water to pass through the coffee module 577 and the pipe connecting the coffee module 558 to the nozzle 512a. The hot water then enters the cleaning chamber 584, where it is contained within the cleaning chamber housing 514, the nozzle arrangement structure 512, and the seal 528, and is then extracted to the external drain pipe 582 via the cleaning return nozzle 512e and valve 580.

[0100] During the disinfection phase, the water heater module 566 is connected to the cleaning module 564 via valves 574, 577, and 584, and via the cleaning chamber 584. Hot water is used to dissolve the cleaning agent within the cleaning module 564 and returns to the water heater module 566 via check valve 572. Water can continuously circulate through the hot water module 566 and the cleaning module 564 in this manner until the appropriate temperature and / or amount of cleaning agent has dissolved in the hot water to provide a suitable cleaning fluid. After this, the left flow path of valve 574 can be opened to bypass the water heater module 566, and valve 577 can be opened to allow the cleaning fluid to flow through the coffee module 558 and into the cleaning chamber 584. At this point, the outlet of the valve extending to the drain pipe 580 can be closed.

[0101] Once sufficient water has flowed through the coffee module 558, the drain outlet of valve 580 can be opened to allow used cleaning fluid to drain from the external drain pipe. At this point, the outlet of valve 580 connected to the cleaning module 564 can be closed.

[0102] The cleaning fluid flushing stage is similar to the residue flushing stage, but instead of water flowing through the water heater module 566, the cold water inlet valve of valve 574 is opened, allowing it to bypass the water heater module 566 and flow directly to the coffee module 558 and the external drain pipe 582.

[0103] It should be understood that other beverage dispensing modules 560 and 562 can be cleaned in a similar manner via the control of valves 576 and 579, and are cleaned sequentially in each cleaning stage. It should also be understood that the cleaning process can differ from the process described above. For example, in some embodiments, the cleaning fluid can be prepared outside the beverage dispensing machine 500, or can be provided as a premixed solution. In this case, the steps related to preparing the cleaning fluid can be omitted. In other embodiments, residual rinsing may not be required, or a closed cleaning loop can be used to achieve residual rinsing. Furthermore, air can be used to remove water or cleaning fluid from the cleaning chamber 584.

[0104] As described above, the beverage dispensing device 500 may include a controller 568 configured to control various parts of the beverage dispensing device 500 to allow the preparation and dispensing of beverages and to perform any necessary cleaning processes according to instructions from the user. Thus, although not shown, the controller 568 is connected to each valve and module of the beverage dispensing device 500 to allow actuation and sensing as required during the beverage preparation or cleaning process. The controller 568, actuators, and sensors are located on various components and communication lines for sending commands or data to and receiving commands or data from the sensors; these are conventional and well-known in the art and will not be described in detail here.

[0105] As should be understood from this disclosure as a whole, the controller 568 may also be configured to operate the drive mechanism 300, such that the cleaning chamber housing 514 can be moved between a stored position and an deployed position as needed during the cleaning process. Therefore, the cleaning process described herein with respect to the device 500 may begin when the cleaning chamber housing 514 is moved to the deployed position, such that the cleaning chamber housing is hermetically coupled to the nozzle arrangement structure 512 to form the cleaning chamber 584.

[0106] Controller 568 may include a user interface. The user interface may be configured to receive instructions from a user and / or provide a display for providing information to the user. The user interface may include, for example, an output display 588 and an input device 586, such as a touchscreen input device or one or more buttons, to enable the user to select options or operate the machine.

[0107] For example, controller 568 may be configured to allow a user to select the type of beverage to be dispensed or to select a cleaning operation, and / or be configured to provide inventory levels or operating status in machine 500.

[0108] The controller 568 may include a timer and / or a scheduler to allow cleaning operations to be performed at specified times and / or according to a predetermined schedule. Therefore, the controller 568 can be configured to perform cleaning operations automatically without user interaction. Due to the configuration of the cleaning chamber housing 514 and the nozzle arrangement structure 512, the user does not need to perform any specific actions related to the cleaning operation of the beverage dispensing device 500, so cleaning can be scheduled according to a preferred time of day or week, such as during non-working hours and / or after a predetermined operating time.

[0109] It should be understood that the nozzle arrangement and cleaning chamber housing of this disclosure are advantageous because they allow for the formation of a cleaning loop within the beverage dispensing device. This not only facilitates cleaning but also allows for a high degree of automation of the device's cleaning process.

[0110] Another advantage of the clean chamber housing and nozzle arrangement is that each fluid path for each type of drinkable fluid can be cleaned from the beverage preparation module to the nozzle, including the exterior of the nozzle.

[0111] Furthermore, since the cleaning chamber, formed by the nozzle arrangement structure and the cleaning chamber housing, is sealed in some embodiments, the cleaning circuit can be used to allow one or more of cold, hot, and cleaning fluids to flow through various beverage preparation modules of the beverage dispensing device. The cleaning circuit can be a closed circuit and / or an open circuit, where circulating fluid is dispensed to an external drain pipe. Additionally, the cleaning fluid can be continuously circulated or soaked to achieve appropriate cleanliness.

[0112] The device can heat the cleaning fluid to a temperature of at least 50°C, preferably at least 60°C, more preferably at least 70°C, and most preferably about 75°C.

[0113] The device can circulate the cleaning fluid through all subsystems at elevated temperatures for a selected time period, for example, at least 2 minutes, preferably at least 3 minutes, more preferably at least 4 minutes, and even more preferably at least 5 minutes.

[0114] The cleaning fluid can then be discharged from the dispensable fluid circuit. Preferably, all subsystems can then be flushed to remove any residual cleaning fluid. The outlet base can then be opened to return the device to the dispensing mode.

[0115] The device can be used in an intermediate rinse mode, in which the outlet base can be closed to isolate the dispensable fluid source, allowing the device to enter the intermediate rinse mode. Preferably, all subsystems can then be rinsed to remove any dispensable fluid residue from the dispensable fluid loop. Afterward, the outlet base can be opened to return the device to the dispensing mode.

[0116] The foregoing has described one or more embodiments by way of example only. Many variations are possible without departing from the scope of protection provided in the appended claims.

Claims

1. A beverage dispensing device, the beverage dispensing device comprising: A nozzle arrangement structure comprising a plurality of nozzles, wherein at least one of the plurality of nozzles is an outlet nozzle for dispensing potable fluid, and wherein at least one of the plurality of nozzles is a cleaning return nozzle. and A cleaning chamber housing that can be repeatedly moved between a retracted position and an extended position to clean the nozzle arrangement structure, the cleaning chamber housing including an internal cavity in which the plurality of nozzles can be sealed and accommodated when in the extended position; The plurality of nozzles are characterized in that they are configured to extend into the internal cavity when the cleaning chamber housing is in the deployed position, and The cleaning return nozzle is positioned at the lowest point of the internal cavity relative to at least one outlet nozzle.

2. The device of claim 1, wherein the cleaning chamber housing includes a base and at least one sidewall extending upward from the base, the sidewall defining the internal cavity.

3. The device according to claim 1 or 2, wherein the cleaning chamber housing includes a peripheral seal that abuts against the nozzle arrangement structure to seal the plurality of nozzles together within the internal cavity.

4. The device of claim 1, wherein the plurality of nozzles extend from a proximal end to a distal end of a body attached to the nozzle arrangement structure, wherein the distance between the proximal end and the distal end defines the length of each nozzle, wherein the length of the cleaning return nozzle is the longest of the plurality of nozzles.

5. The device according to claim 1, wherein the at least one outlet nozzle comprises at least one or more nozzles from the group consisting of: coffee outlet nozzle, chocolate outlet nozzle, milk outlet nozzle, and water outlet nozzle.

6. The device of claim 1, wherein the at least one outlet nozzle is configured to provide cleaning fluid during the cleaning process.

7. The device of claim 1, wherein the cleaning chamber housing includes a cavity for each of the at least one outlet nozzle, each cavity including a cavity sidewall defining the cleaning chamber, the cleaning chamber receiving the terminal of the corresponding at least one outlet nozzle, the cavity sidewall being configured to redirect cleaning fluid ejected from the corresponding at least one outlet nozzle along the outer surface of the corresponding at least one outlet nozzle.

8. The device of claim 7, wherein each cavity includes a cavity base that is raised relative to the base of the cleaning chamber housing.

9. The device according to claim 7 or 8, wherein each cavity sidewall includes a cavity drain pipe through which cleaning fluid flows from the cavity into the cleaning chamber housing.

10. The device of claim 9, wherein the cavity drain pipe includes a cavity drain hole in the sidewall of each cavity.

11. The device of claim 10, wherein the recessed drain hole faces the cleaning return nozzle to direct the outflowing cleaning fluid to the cleaning return nozzle.

12. The device of claim 1, further comprising a drive mechanism operable to move the cleaning chamber housing between the stored position and the deployed position, and vice versa.

13. The device of claim 12, wherein the drive mechanism includes a reciprocating track along which the cleaning chamber housing is driven to move between the storage position and the unfolded position.

14. The device of claim 13, wherein the reciprocating track is curved.

15. The device of claim 13 or 14, wherein the drive mechanism includes a drive arm that is rotatable to slide the cleaning chamber housing along the reciprocating track.

16. The device of claim 15, wherein the reciprocating track accommodates a reciprocating engagement member of the cleaning chamber housing, the reciprocating engagement member being configured to rotate in the reciprocating track and slide along the reciprocating track under the action of the drive arm.

17. The device of claim 16, wherein the reciprocating engagement member is located above the sealing surface of the cleaning chamber housing.

18. The device of claim 16, wherein the reciprocating engagement member is disposed at a first end of the cleaning chamber housing, and the drive arm is drivably connected to a second end of the cleaning chamber housing.

19. The device of claim 1, wherein the cleaning chamber housing is rotatably abutted against the nozzle arrangement structure.

20. The apparatus of claim 1, further comprising one or more beverage preparation modules, wherein the cleaning chamber housing forms part of a cleaning circuit in which cleaning fluid circulates through the one or more beverage preparation modules and the cleaning chamber housing.

21. The apparatus of claim 20, further comprising a hot water module configured to heat water for circulation around the cleaning loop.

22. The device according to claim 20 or 21, wherein the cleaning circuit is a closed circuit and / or an open circuit terminating at an external drain pipe.

23. A method for cleaning a beverage dispensing device according to claim 1, the method comprising: The nozzle arrangement structure and the cleaning chamber housing are capable of being sealed together to provide a cleaning chamber around the plurality of nozzles; as well as The cleaning fluid is circulated through the cleaning chamber.

24. The method of claim 23, wherein the beverage dispensing device includes a beverage preparation module, wherein the cleaning fluid circulates through the beverage preparation module before being sent to an external drain pipe.

25. The method of claim 23, further comprising using an airflow to remove residual fluid from the cleaning chamber.

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