Pipeline switching device and beverage machine

Abstract

The invention provides a pipeline switching device and a beverage machine, and the pipeline switching device comprises a shell which is provided with an internal cavity and a water inlet communicated with the internal cavity; the flow dividing assemblies are arranged in the circumferential direction and installed on the shell; each flow dividing assembly comprises a flow dividing cylinder body and a sealing plug, the flow dividing cylinder body is provided with a flow dividing inlet and a flow dividing outlet, and the sealing plug is arranged to be capable of moving in the flow dividing cylinder body to control connection and disconnection of the flow dividing outlet and the flow dividing inlet; the driving mechanism comprises a special-shaped wheel, the outer peripheral surface of the special-shaped wheel is provided with a convex part, the special-shaped wheel can rotate, and the multiple sealing plugs are arranged around the special-shaped wheel in the circumferential direction; and when the special-shaped wheel rotates to the convex part to correspond to the sealing plug of any flow dividing assembly, the sealing plug can be pushed, so that the flow dividing outlet and the flow dividing inlet of the flow dividing assembly are communicated. By means of the pipeline switching device, switching of a plurality of pipelines can be achieved, operation is easy, reliability is high, occupied space is small, the requirements for machining precision and the assembling technology are low, and production cost can be reduced.

Description

Technical Field

[0001] The present application relates to the technical field of beverage machines, and in particular to a pipeline switching device and a beverage machine. Background Art

[0002] Beverage machines on the market, such as coffee machines, have the need to realize multi-pipeline switching of water channels. Currently, multiple exhaust valve combinations or diverter valves are mostly used to realize pipeline switching.

[0003] However, in the exhaust valve combination solution, since multiple solenoid valves need to be set up to achieve the connection of multiple pipes, there are disadvantages such as high cost and space occupation; while the diverter valve has defects such as the internal sealing piece is easy to get stuck and cannot switch the water path, and it is easy to leak. Summary of the invention

[0004] In view of this, the present application provides a pipeline switching device and a beverage machine to solve the problems of high cost, space occupation and poor stability in the current multi-pipeline switching solutions.

[0005] The present application provides a pipeline switching device, the pipeline switching device comprising:

[0006] A shell having an internal cavity and a water inlet communicating with the internal cavity;

[0007] A plurality of flow dividing assemblies are arranged along the circumferential direction and mounted on the housing; wherein each of the flow dividing assemblies comprises a flow dividing cylinder and a sealing plug, the flow dividing cylinder having a flow dividing inlet communicating with the internal cavity and a flow dividing outlet for flowing fluid out of the flow dividing cylinder, and the sealing plug is configured to be movable in the flow dividing cylinder to control the connection and disconnection between the flow dividing outlet and the flow dividing inlet;

[0008] The driving mechanism comprises a rotatable shaped wheel, the outer peripheral surface of the shaped wheel has a convex portion, and a plurality of sealing plugs are arranged around the shaped wheel in a circumferential direction;

[0009] When the shaped wheel rotates until the convex portion corresponds to the sealing plug of any one of the diverter components, the sealing plug can be pushed to allow the diverter outlet and the diverter inlet of the diverter component to communicate with each other.

[0010] In one embodiment, the diverter assembly further comprises an elastic member, and the elastic member is configured to push the sealing plug to reset when the special-shaped wheel releases the sealing plug, thereby disconnecting the diverter outlet and the diverter inlet.

[0011] In one embodiment, the sealing plug includes a sealing plug body and a connecting rod, the sealing plug body is located in the diverter cylinder, one end of the connecting rod is connected to the sealing plug body, and the other end of the connecting rod faces the special-shaped wheel, and the elastic member is located on the side of the sealing plug body away from the connecting rod.

[0012] In one embodiment, a flow gap is provided between the sealing plug body and the side wall of the diverter cylinder, and a sealing ring is provided between the side of the sealing plug body provided with the connecting rod and the end wall of the diverter cylinder provided with the diverter inlet;

[0013] The sealing plug body presses the sealing ring against the end wall under the elastic force of the elastic member to cut off the connection between the diversion inlet and the diversion outlet. When the special-shaped wheel pushes the sealing plug away from the end wall, the diversion inlet is connected with the diversion outlet through the flow gap.

[0014] In one embodiment, at least one of the diverter components is configured so that when the pressure value in the shell exceeds a preset pressure relief protection value, the pressure acting on the sealing plug of the diverter component can overcome the elastic force of the elastic member and push the sealing plug to achieve pressure relief.

[0015] In one embodiment, the housing is a cylindrical structure, the shaped wheel is located inside the housing, the diversion inlet is located at one end of each diversion cylinder body facing the shaped wheel, and the plurality of sealing plugs each include a connecting rod for contacting the shaped wheel, and the connecting rod extends from the diversion inlet toward the shaped wheel;

[0016] And / or, the diversion outlet is located on the side of the diversion cylinder and on the outside of the shell.

[0017] In one embodiment, the shell is an annular structure with an annular cavity formed inside, the special-shaped wheel is close to the center of the annular structure, and a plurality of the diverter cylinders are circumferentially arranged and installed on the outside of the annular structure; wherein the diverter inlet of each diverter cylinder is located on the side of the diverter cylinder and is connected to the shell.

[0018] In one embodiment, the driving mechanism further includes a motor for driving the shaped wheel to rotate.

[0019] In one embodiment, a switch valve is provided on the water inlet pipeline connected to the water inlet.

[0020] In one embodiment, the flow diverter assembly is configured to adjust the flow cross-sectional area between the flow diverter inlet and the flow diverter outlet by moving the sealing plug to different positions relative to the flow diverter cylinder.

[0021] In one embodiment, the shaped wheel is configured so that the protrusion can only push one sealing plug to move at a time.

[0022] In one embodiment, a plurality of connection interfaces are arranged on the shell at intervals along the circumferential direction, and each of the flow-dividing cylinders is detachably mounted on the connection interface.

[0023] In one embodiment, the diverter cylinder is connected to the connection interface via threads;

[0024] Alternatively, the flow-dividing cylinder body is provided with a flange matching the housing, and the flange is fixed to the connection interface by bolts;

[0025] Alternatively, the diverter cylinder is connected to the connection interface by snap-fitting.

[0026] In one embodiment, the pipeline switching device also includes a sealing plug for sealing the connection interface.

[0027] According to another aspect of the present application, a beverage machine is provided, and the beverage machine includes the pipeline switching device as described above.

[0028] In the technical solution provided in the present application, the pipeline switching device provided in the present application can realize the switching of multiple pipelines. It is simple to operate, has high reliability, occupies a small space, and has low requirements on processing accuracy and assembly process, which is conducive to reducing production costs.

[0029] Other features and advantages of the present application will be described in detail in the subsequent detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The drawings constituting a part of this application are used to provide a further understanding of this application. The illustrative implementation methods and descriptions of this application are used to explain this application and do not constitute an improper limitation on this application. In the drawings:

[0031] Figure 1 This is a schematic diagram of the structure of a pipeline switching device according to an embodiment of the present application;

[0032] Figure 2 for Figure 1 A cross-sectional view of the pipeline switching device shown, wherein the highest point of the convex portion of the shaped wheel is against the sealing plug of one of the flow diverter components;

[0033] Figure 3 for Figure 1 A cross-sectional view of the pipeline switching device shown, wherein the highest point of the convex portion of the shaped wheel deviates from the sealing plug of the diverter assembly;

[0034] Figure 4This is a schematic diagram of the structure of a flow splitter assembly according to an embodiment of the present application, wherein the sealing plug presses the sealing ring onto the flow splitter cylinder for sealing;

[0035] Figure 5 is a structural schematic diagram of a flow diversion assembly according to an embodiment of the present application, wherein the sealing plug is lifted up;

[0036] Figure 6 This is a schematic structural diagram of a sealing plug viewed from one end according to an embodiment of the present application;

[0037] Figure 7 It is a schematic structural diagram of a flow diversion component in another embodiment of the present application.

[0038] Description of reference numerals:

[0039] 1-shell; 11-water inlet; 2-diverter assembly; 21-diverter cylinder; 211-diverter inlet; 212-diverter outlet; 22-sealing plug; 221-sealing plug body; 222-connecting rod; 223-spring guide rod; 23-elastic member; 24-sealing ring; 25-circulation gap; 3-driving mechanism; 31-special-shaped wheel; 311-convex part; 32-motor; 4-switch valve; 5-water inlet pipeline. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application. In the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0041] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "left", "right", "vertical", "horizontal", "top", "bottom", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0042] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features.

[0043] The present application provides a pipeline switching device, such as Figure 1-Figure 3 As shown, the pipeline switching device includes:

[0044] The housing 1 has an internal cavity and a water inlet 11 communicating with the internal cavity;

[0045] A plurality of flow dividing assemblies 2 are arranged in the circumferential direction and mounted on the housing 1; wherein each flow dividing assembly 2 comprises a flow dividing cylinder 21 and a sealing plug 22, the flow dividing cylinder 21 having a flow dividing inlet 211 communicating with the internal cavity of the housing 1 and a flow dividing outlet 212 for flowing fluid out of the flow dividing cylinder 21, and the sealing plug 22 is configured to be movable in the flow dividing cylinder 21 to control the connection and disconnection of the flow dividing outlet 212 and the flow dividing inlet 211;

[0046] The driving mechanism 3 comprises a rotatable shaped wheel 31, the outer peripheral surface of the shaped wheel 31 has a convex portion 311, and a plurality of sealing plugs 22 are arranged around the shaped wheel 31 in the circumferential direction;

[0047] When the shaped wheel 31 rotates until the protrusion 311 corresponds to the sealing plug 22 of any diversion component 2, the sealing plug 22 can be pushed to connect the diversion outlet 212 and the diversion inlet 211 of the diversion component 2.

[0048] The pipeline switching device provided by the present application is provided with a plurality of flow diversion components 2 distributed along the circumferential direction, so that the convex portion 311 of the shaped wheel 31 is controlled to rotate to push the sealing plug 22 of the corresponding flow diversion component 2, so that when the flow diversion outlet 212 of the flow diversion component 2 is connected to the flow diversion inlet 211, the fluid entering the housing 1 from the water inlet 11 can be diverted to the pipeline connected to the flow diversion outlet 212 of the flow diversion component 2. The pipeline switching device can realize the switching of multiple pipelines, especially the switching of more pipelines, such as the switching of five, six or even more pipelines, and is simple to operate, highly reliable, occupies less space, and has low requirements for processing accuracy and assembly process, which is conducive to reducing production costs.

[0049] The pipeline switching device provided in the present application can be applied to beverage machines, such as coffee machines, or other devices that require water circuit switching. For example, when applied to a coffee machine, the water inlet 11 of the housing 1 can be connected to a water tank, and the diverter outlets 212 of the plurality of diverter components 2 can be respectively connected to a coffee branch for brewing coffee, a hot water branch for discharging hot water, and a steam branch for providing steam, etc. When the shaped wheel 31 is controlled to rotate to the diverter component 2 whose convex portion 311 corresponds to the coffee branch, the diverter outlet 212 of the diverter component is controlled to be connected to the diverter inlet 211, so that the water in the housing 1 can enter the coffee branch through the diverter component 2 to make coffee, and when milk foam needs to be made, the diverter outlet 212 of the diverter component 2 connected to the steam branch is controlled to be connected to the diverter inlet 211, so that the steam in the housing 1 can enter the steam branch through the diverter component 2, and so on.

[0050] Among them, a switch valve 4 can be set on the water inlet pipeline 5 connected to the water inlet 11 of the shell 1. When switching the pipeline, the water inlet 11 is first closed by the switch valve 4, and then the convex part of the special-shaped wheel 31 is driven to rotate to the corresponding diverter assembly 2, so that the diverter assembly 2 connects the corresponding pipeline, and then the switch valve 4 is opened, that is, after the pipeline is switched in place, the liquid is circumferentially circumferentially The flow diverter assembly is named No. 1 to No. 6 diverter assembly, and when the pipeline is switched, if it is necessary to switch from the existing state of the No. 1 diverter assembly to the No. 4 diverter assembly, it is necessary to pass through the No. 2 and No. 3 diverter assemblies during the rotation and switching of the special-shaped wheel 31, and when the special-shaped wheel 31 passes through the No. 2 and No. 3 diverter assemblies, the diverter cylinders of the two will be opened in a state of liquid circulation. The switch valve 4 is set to close the water inlet when the pipeline is switched, in order to avoid fluid outflow from the pipeline that does not need to be switched to (such as the No. 2 and No. 3 pipelines mentioned above) when switching.

[0051] In one embodiment, the shaped wheel 31 is configured so that the protrusion 311 can only push one sealing plug 22 to move at a time. That is, when the shaped wheel 31 pushes the sealing plug 22 of one of the diverter components to move so that the diverter outlet 212 and the diverter inlet 211 of the diverter component 2 are connected, the diverter outlets 212 and the diverter inlets 211 of other diverter components 2 are still in a disconnected state. This can be achieved by designing the size and shape of the protrusion 311 and the arrangement of each diverter component 2.

[0052] In one embodiment, in order to drive the shaped wheel 31 to rotate, the driving mechanism 3 further includes a motor 32 for driving the shaped wheel 31 to rotate; Figure 1 As shown, the motor 32 is located at one end of the shell 1, and the water inlet 11 is located at the other end of the shell 1. Of course, according to the specific arrangement of the water inlet pipeline 5, the water inlet 11 can also be set at other positions of the shell 1, which is not limited here.

[0053] It is understandable that the shaped wheel 31 is not limited to being driven by the motor 32, and the shaped wheel 31 may also be driven manually. For example, a handle may be provided on the rotating shaft connected to the shaped wheel 31, and the shaped wheel 31 may be driven to rotate by holding the handle to achieve pipeline switching.

[0054] The shell 1 is a cylindrical structure. Figure 2 and Figure 3 In the illustrated embodiment, the housing 1 is cylindrical. In other embodiments, the housing 1 may be a polygonal cylindrical shape, etc. The shaped wheel 31 is located inside the housing 1, approximately at the center of the housing 1, the diversion inlet 211 of each diversion assembly 2 is located at the end of the diversion cylinder 21 facing the shaped wheel 31, and the connecting rods 222 of the plurality of sealing plugs 22 for contacting the shaped wheel 31 all extend from the diversion inlet 211 toward the shaped wheel 31, so that the convex portion of the shaped wheel 31 can rotate to contact the connecting rod 222. In this embodiment, the diversion outlet 212 is located on the side of the diversion cylinder 21, and on the outside of the housing 1, refer to Figure 4 and Figure 5 .

[0055] Further, such as Figure 1-Figure 3 In the illustrated embodiment, the shell 1 is a cylindrical structure, the special-shaped wheel 31 is installed at the center position inside the shell 1, each diversion component 2 is arranged at intervals along the circumference of the side wall of the shell 1, a water inlet 11 is provided at one end of the shell 1, and the other end is connected to the motor 32, and the diversion outlet 212 of each diversion component 2 can be located on the side of the diversion cylinder 21 facing the motor 32, so that the diversion branches connected to each diversion outlet 212 can be extended in the direction of the motor 32, that is, each diversion branch can be arranged around the motor 32, which is conducive to saving space.

[0056] After the protrusion 311 of the shaped wheel 31 pushes the sealing plug 22 of one of the diversion components 2 to enable the diversion component to achieve diversion, if the fluid connection of the diversion component is to be cut off, the protrusion 311 of the shaped wheel 31 is rotated to disengage the sealing plug 22 of the diversion component 2, so that the sealing plug 22 is reset, and the diversion outlet 212 and the diversion inlet 211 can be disconnected.

[0057] In order to reset the sealing plug 22, in one embodiment, the diverter assembly 2 includes an elastic member 23, which is configured to push the sealing plug 22 to reset when the shaped wheel 31 releases the sealing plug 22, so that the sealing plug 22 disconnects the diverter outlet 212 and the diverter inlet 211 of the corresponding diverter assembly 2.

[0058] refer to Figure 2-Figure 5In the embodiment shown, the diverter inlet 211 of the diverter assembly 2 is located at one end of the diverter cylinder 21 facing the special-shaped wheel 31, the sealing plug 22 includes a sealing plug body 221 and a connecting rod 222, the sealing plug body 221 is located in the diverter cylinder 21, one end of the connecting rod 222 is connected to the sealing plug body 221, and the other end of the connecting rod 222 extends from the diverter inlet 211 toward the special-shaped wheel 31, and the elastic member 23 is located on the side of the sealing plug body 221 away from the connecting rod 222, wherein the elastic member 23 is a coil spring, and a spring guide rod 223 can also be provided on the side of the sealing plug body 221 away from the connecting rod 222 for installing the elastic member 23. Of course, the elastic member 23 can also be provided at other positions, for example, between the outer side of the diverter cylinder 21 and the end of the sealing plug 22 extending out of the diverter cylinder 21. In this way, when the protrusion 311 of the shaped wheel 31 rotates to the connecting rod 222, it can push the connecting rod 222 to move toward the elastic member 23, and the elastic member 23 is compressed. When the shaped wheel 31 leaves the connecting rod 222, the elastic member 23 is released, thereby pushing the sealing plug 22 to reset.

[0059] In this embodiment, there is a flow gap 25 between the sealing plug body 221 and the side wall of the diverter cylinder 21. The flow gap 25 can be set in various forms. Figure 6 In the embodiment shown, four notches are provided at the edge of the sealing plug body 221, so that four flow gaps 25 are formed between the sealing plug body 221 and the side wall of the diverter cylinder 21. A sealing ring 24 is provided between the side of the sealing plug body 221 with the connecting rod 222 and the end wall of the diverter cylinder 21 with the diverter inlet 211. The sealing ring 24 can be fixed on the sealing plug body 221 around the connecting rod 222, or can be fixed on the end wall of the diverter cylinder 21 around the diverter inlet 211. Under the elastic force of the elastic member 23, the sealing plug body 221 presses the sealing ring 24 against the end wall of the diverter cylinder 21 to seal, and the connection between the diverter inlet 211 and the diverter outlet 212 can be cut off. When the special-shaped wheel 31 pushes the sealing plug 22 away from the end wall, the diverter inlet 211 is connected with the diverter outlet 212 through the flow gap 25.

[0060] It is understood by those skilled in the art that the flow dividing assembly 2 can have various modifications. For example, a sealing plug 22 can be provided to seal the flow dividing outlet 212 on the side thereof. Figure 7When the shaped wheel 31 pushes the sealing plug 22 to move and expose the diverting outlet 212, the diverting outlet 212 is connected to the diverting inlet 211. There are many ways to set the diverting inlet 211 and the diverting outlet 212 of the diverting cylinder 21. For example, the diverting inlet 211 can be set on the side of the diverting cylinder 21, and a seal can be set between the connecting rod 222 of the sealing plug 22 and the diverting cylinder; the diverting outlet 212 can also be set on the end face of the connecting rod 222 of the diverting cylinder away from the sealing plug 22, etc., which will not be listed here one by one, as long as the diverting inlet 211 and the diverting outlet 212 can be connected and disconnected by controlling the movement of the sealing plug 22, it is not limited here.

[0061] In addition, it can also be understood that the structure of the housing 1 and the installation of the multiple diverter assemblies 2 are not limited to the above-described method. For example, in one embodiment, the housing 1 is set as an annular structure, an annular cavity is formed inside, the special-shaped wheel 31 is close to the center of the annular structure, and multiple diverter cylinders 21 are circumferentially installed on the outside of the annular structure; wherein the diverter inlet of each diverter cylinder 21 is located on the side of the diverter cylinder 21 and connected to the housing 1, and the sealing plugs 22 all extend toward the special-shaped wheel 31. In this embodiment, the diverter cylinder 21 and the special-shaped wheel 31 can be arranged outside the cavity of the housing, which is convenient for maintenance.

[0062] In one embodiment, at least one of the flow splitters 2 is configured such that when the pressure value in the housing 1 exceeds a preset pressure relief protection value, the pressure acting on the sealing plug 22 of the flow splitter 2 can overcome the elastic force of the elastic member 23 and push the sealing plug 22 to achieve pressure relief. This can be achieved by setting the elastic value of the elastic member 23 or by setting the area of ​​the liquid acting on the sealing plug 22. The preset pressure relief protection value is lower than the limit pressure value of the pipeline and higher than the normal pressure value of the pipeline.

[0063] Except for the shunt component 2 with pressure relief protection function which is set to achieve pressure relief when the pressure relief protection value is reached, the pressure holding values ​​of other shunt components 2 are set to be greater than the pressure relief protection value, and the opening of the sealing plug 22 needs to be driven by the special-shaped wheel 31.

[0064] For example, in one embodiment, the normal pressure value of the pipeline is 6Mpa, and the limit pressure value of the pipeline is 9MPa, then the pressure relief protection value of one of the diverter components 2 in the pipeline switching device can be set to: 6Mpa<pressure relief protection value<9MPa; therefore, when the pressure in the pipeline exceeds the normal pressure value and requires pressure relief protection, pressure relief protection can be performed through the diverter component 2 with a pressure relief protection value. At this time, the sealing plug 22 of the diverter component 2 will be lifted up by the pressure in the pipeline, and the diverter outlet 212 of the diverter component 2 is externally connected to the pressure relief pipe to achieve pressure relief of the pipeline, so that the pressure of the pipeline will not reach the limit pressure value and damage the pipeline.

[0065] In one embodiment, the flow dividing component 2 is configured to adjust the flow cross-sectional area between the flow dividing inlet 211 and the flow dividing outlet 212 by moving the sealing plug 22 to different positions relative to the flow dividing cylinder 21, thereby realizing the flow adjustment of the flow dividing component 2. When the highest position of the convex portion 311 of the shaped wheel 31 presses against the sealing plug 22, the flow of the flow dividing component 2 reaches the maximum. Figure 2 When the profiled wheel 31 is Figure 2 After the state shown is rotated by a certain angle, when the side of the shaped wheel 31 abuts against the sealing plug 22, as shown in FIG. Figure 3 In this state, the position of the sealing plug 22 relative to the diverter cylinder 21 changes, and the water inlet cross-sectional area becomes smaller, thereby achieving flow adjustment.

[0066] Furthermore, it can be arranged that when the sealing plug 22 moves in a direction away from the special-shaped wheel 31, the gap between the sealing plug 22 and the diverter cylinder 21 gradually increases, such as Figure 2 and Figure 3 In the embodiment shown, this can be achieved by setting the cross section of the flow dividing cylinder 21 to gradually increase. For example, the internal cavity of the flow dividing cylinder 21 can be set to be formed into a cone in the direction away from the special-shaped wheel 31, so that when the special-shaped wheel 31 pushes the sealing plug 22 to move, the flow cross-sectional area formed between the sealing plug 22 and the flow dividing cylinder 21 increases, thereby increasing the flow rate. In another embodiment, as Figure 7 As shown, the side of the sealing plug 22 blocks the diversion outlet 212. When the special-shaped wheel 31 pushes the sealing plug 22 to move, the exposed area of ​​the diversion outlet 212 gradually increases, so that the flow rate gradually increases.

[0067] In one embodiment, in order to install the flow dividing assembly 2, a plurality of connection interfaces may be provided on the housing 1, and each flow dividing cylinder 21 may be detachably mounted on the connection interface. Optionally, the pipeline switching device may further include a sealing plug for sealing the connection interface on the housing 1.

[0068] The manner in which the flow-dividing cylinder 21 is detachably connected to the housing 1 has high flexibility, and a corresponding number of flow-dividing cylinders 21 can be selected and installed on the housing 1 as needed, and the connection interfaces where the flow-dividing cylinder 21 is not required to be installed can be blocked with sealing plugs. For example, if there are 6 connection interfaces on the housing 1, when only four flow-dividing components are used to divert the waterway, the other two connection interfaces can be blocked with plugs.

[0069] Optionally, the flow-dividing cylinder 21 is connected to the connection interface by threaded sealing. The threaded connection is simple and easy to seal.

[0070] Optionally, a flange matching the housing 1 is provided on the flow dividing cylinder 21, and the flange is fixed to the connection interface by bolts. A sealing ring may be provided between the flange and the housing 1 to achieve a sealed connection between the flow dividing cylinder 21 and the housing 1.

[0071] Optionally, the flow dividing cylinder 21 is connected to the connection interface by snapping. Specifically, a snap-fit ​​structure can be provided between the connection interface of the housing and the outer wall of the flow dividing cylinder, and a sealing ring can be provided between the flow dividing cylinder and the connection interface. After the flow dividing cylinder extends into the connection interface and snaps into the connection interface, the sealing ring is pressed between the flow dividing cylinder and the housing to achieve sealing.

[0072] According to another aspect of the present application, a beverage machine is further provided, and the beverage machine includes the pipeline switching device as described above.

[0073] In a beverage machine provided in an embodiment, the water inlet 11 of the housing 1 can be connected to a water tank, and the diversion outlet 212 of each diversion component 2 is respectively connected to a diversion branch, which can be a coffee branch, a hot water branch, a steam branch, etc. When one of the diversion branches needs hot water or steam, the sealing plug 22 of the corresponding diversion component 2 can be pushed by controlling the special-shaped wheel 31 to achieve the connection of the diversion branch, so that the hot water or steam in the water tank flows into the branch.

[0074] The pipeline switching device is used in the beverage machine to switch the water circuit, which is simple to operate and has high reliability. In addition, since the pipeline switching device has low processing accuracy and assembly process requirements and occupies a small space, it is beneficial to reduce the production cost of the beverage machine and reduce the size of the beverage machine.

[0075] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A pipeline switching device, characterized in that: The pipeline switching device comprises: A shell having an internal cavity and a water inlet communicating with the internal cavity; A plurality of flow dividing assemblies are arranged along the circumferential direction and mounted on the housing; wherein each of the flow dividing assemblies comprises a flow dividing cylinder and a sealing plug, the flow dividing cylinder having a flow dividing inlet communicating with the internal cavity and a flow dividing outlet for flowing fluid out of the flow dividing cylinder, and the sealing plug is configured to be movable in the flow dividing cylinder to control the connection and disconnection between the flow dividing outlet and the flow dividing inlet; The driving mechanism comprises a rotatable shaped wheel, the outer peripheral surface of the shaped wheel has a convex portion, and a plurality of sealing plugs are arranged around the shaped wheel in a circumferential direction; When the shaped wheel rotates until the convex portion corresponds to the sealing plug of any one of the diverter components, the sealing plug can be pushed to allow the diverter outlet and the diverter inlet of the diverter component to communicate with each other.

2. The pipeline switching device according to claim 1, characterized in that: The diverter assembly further comprises an elastic member, which is configured to push the sealing plug to reset when the special-shaped wheel releases the sealing plug, thereby disconnecting the diverter outlet and the diverter inlet.

3. The pipeline switching device according to claim 2, characterized in that: The sealing plug includes a sealing plug body and a connecting rod, the sealing plug body is located in the diverter cylinder, one end of the connecting rod is connected to the sealing plug body, and the other end of the connecting rod faces the special-shaped wheel, and the elastic member is located on the side of the sealing plug body away from the connecting rod.

4. The pipeline switching device according to claim 3, characterized in that: There is a flow gap between the sealing plug body and the side wall of the diverter cylinder, and a sealing ring is provided between the side of the sealing plug body provided with the connecting rod and the end wall of the diverter cylinder provided with the diverter inlet; The sealing plug body presses the sealing ring against the end wall under the elastic force of the elastic member to cut off the connection between the diversion inlet and the diversion outlet. When the special-shaped wheel pushes the sealing plug away from the end wall, the diversion inlet is connected with the diversion outlet through the flow gap.

5. The pipeline switching device according to claim 2, characterized in that: At least one of the diverter components is configured so that when the pressure value in the shell exceeds a preset pressure relief protection value, the pressure acting on the sealing plug of the diverter component can overcome the elastic force of the elastic member and push the sealing plug to achieve pressure relief.

6. The pipeline switching device according to claim 1, characterized in that: The housing is a cylindrical structure, the shaped wheel is located inside the housing, the flow splitting inlet is located at one end of each flow splitting cylinder body facing the shaped wheel, and the plurality of sealing plugs each include a connecting rod for contacting the shaped wheel, and the connecting rod extends from the flow splitting inlet toward the shaped wheel; And / or, the diversion outlet is located on the side of the diversion cylinder and on the outside of the shell.

7. The pipeline switching device according to claim 1, characterized in that: The shell is an annular structure with an annular cavity formed inside. The special-shaped wheel is close to the center of the annular structure. A plurality of diverter cylinders are circumferentially arranged and installed on the outside of the annular structure. The diverter inlet of each diverter cylinder is located on the side of the diverter cylinder and is connected to the shell.

8. The pipeline switching device according to any one of claims 1 to 7, characterized in that: The driving mechanism also includes a motor for driving the special-shaped wheel to rotate.

9. The pipeline switching device according to any one of claims 1 to 7, characterized in that: A switch valve is arranged on the water inlet pipeline connected to the water inlet.

10. The pipeline switching device according to any one of claims 1 to 7, characterized in that: The flow dividing assembly is configured to adjust the flow cross-sectional area between the flow dividing inlet and the flow dividing outlet by moving the sealing plug to different positions relative to the flow dividing cylinder.

11. The pipeline switching device according to any one of claims 1 to 7, characterized in that: The shaped wheel is arranged so that the convex portion can only push one sealing plug to move at a time.

12. The pipeline switching device according to any one of claims 1 to 7, characterized in that: The shell body is provided with a plurality of connection interfaces at intervals along the circumferential direction, and each of the flow-dividing cylinder bodies is detachably mounted on the connection interface.

13. The pipeline switching device according to claim 12, characterized in that: The flow-dividing cylinder is connected to the connecting interface via threads; Alternatively, the flow-dividing cylinder body is provided with a flange matching the housing, and the flange is fixed to the connection interface by bolts; Alternatively, the diverter cylinder is connected to the connection interface by snap-fitting.

14. The pipeline switching device according to claim 12, characterized in that: The pipeline switching device also includes a sealing plug for sealing the connection interface.

15. A beverage machine, characterized in that: The beverage machine comprises a pipeline switching device according to any one of claims 1-14.

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