Waterway conversion valve and coffee machine thereof

Abstract

The utility model discloses a waterway diversion valve and a coffee machine thereof, and belongs to the technical field of coffee machines, the waterway diversion valve comprises a diversion valve, the diversion valve is provided with a rotating shaft, a water inlet channel and a plurality of water outlet channels, and the plurality of water outlet channels are respectively and elastically provided with an opening and closing element. The rotating shaft is rotationally arranged on the conversion valve and drives the different opening and closing elements to move when rotating, and the different opening and closing elements communicate with the corresponding water outlet channels and the corresponding water inlet channels when moving. According to the structure, communication and sealing between different water outlet channels and water inlet channels can be achieved, the defect that a water path is sealed through an electromagnetic valve or a similar valve body in the prior art can be overcome, the production cost of a product is greatly reduced, the structure and the assembly process are simplified, the production efficiency is improved, and economic benefits are increased; meanwhile, the problem that a waterway is blocked due to too hard water quality and too many impurities can be effectively avoided, the use quality of a product is improved, maintenance operation can be reduced, and the use experience of a user is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to coffee machine technical field, and specifically is a water route steering valve and coffee machine thereof. BACKGROUND

[0002] Among the existing coffee machines on the market, most of them use electromagnetic valves or similar valve bodies to control the internal water route pipeline of the machine, such as the utility model patent for a coffee machine water route system with the Chinese patent number CN201922301752.2, the utility model patent for a coffee machine water route system with the Chinese patent number CN202020998556.5, the utility model patent for a water route system for a coffee machine and a coffee machine with the Chinese patent number CN202122531498.2, the utility model patent for a coffee machine integrated water route integrated device with the Chinese patent number CN202222570529.X, the utility model patent for a water route system of a milk foam coffee machine with the Chinese patent number CN202320437927.6, the utility model patent for a water route system for a coffee machine with the Chinese patent number CN202321393792.4, and so on.

[0003] However, the above-mentioned existing coffee machines have complex overall structures and high production costs due to the use of electromagnetic valves or similar valve bodies. In addition, there are some special problems that need to be paid attention to when using electromagnetic valves or similar valve bodies to control the water route, i.e., a filter screen needs to be added to the water route pipeline to prevent impurities in the water from affecting the electromagnetic valve or similar valve body. However, in some areas where the water quality is too hard and the impurities are too many, even if there is a filter screen in the water route pipeline, it will still cause the electromagnetic valve or similar valve body to fail to work. When the electromagnetic valve or similar valve body fails to work, the entire water route system will not function, resulting in the loss of coffee machine functionality. This not only causes serious quality problems of the coffee machine, but also affects the user's experience.

[0004] The defects of the above-mentioned existing coffee machines result in high overall machine costs and poor overall user experience, making it impossible to popularize among the public and be recognized by the market, thus leading to the lack of market for coffee machines and the lack of potential for developing the market.

[0005] Therefore, it is necessary to further improve. UTILITY MODEL CONTENTS

[0006] The utility model aims to provide a water route steering valve and coffee machine to overcome the deficiencies in the prior art.

[0007] A waterway switching valve designed for the purpose comprises a switching valve, a rotating shaft, an inlet channel and a plurality of outlet channels, a plurality of the outlet channels are respectively provided with elastic opening and closing elements, the rotating shaft is rotatably arranged on the switching valve and drives different opening and closing elements to move when rotating, and different opening and closing elements realize the communication between the corresponding outlet channel and the inlet channel when moving.

[0008] The rotating shaft is provided with a boss corresponding to different opening and closing elements, and the rotating shaft drives the corresponding opening and closing element to move through the corresponding boss when rotating.

[0009] The opening and closing element is provided with an opening and closing elastic element and a sealing element, the opening and closing element is always elastically moved towards the water inlet or outlet of the outlet channel through the opening and closing elastic element, and the sealing element seals the water inlet or outlet of the outlet channel.

[0010] The switching valve is provided with a positioning element and a positioning elastic element, the positioning element is elastically moved on the switching valve through the positioning elastic element, the rotating shaft is provided with a positioning part, and the rotating shaft and the positioning element are mutually positioned and matched through the positioning part when rotating.

[0011] The switching valve is provided with a micro switch, the rotating shaft is provided with a cam, and the rotating shaft and the micro switch are mutually interacted or separated through the cam when rotating.

[0012] The rotating shaft is provided with a knob, and the rotating shaft is reversely rotated or continuously rotated in a single direction relative to the switching valve through the knob.

[0013] A coffee machine comprising the above waterway switching valve, the coffee machine comprises a water storage container, a flow meter, a water pump, a water heating pot, a pressure sealing group, a steam heating pot; wherein the water storage container, the flow meter and the water pump are sequentially communicated, the switching valve is communicated with the water pump, the water heating pot and the steam heating pot respectively, the water heating pot is communicated with the pressure sealing group, the pressure sealing group is further communicated with an outlet channel, and the switching valve is further communicated with an outlet steam channel.

[0014] The switching valve is sequentially and spacedly provided with a first outlet channel, a second outlet channel, a third outlet channel and a fourth outlet channel.

[0015] The first outlet channel is provided with a first opening and closing element and is communicated with the water heating pot.

[0016] The second outlet channel is provided with a second opening and closing element and is communicated with the inlet of the steam heating pot.

[0017] The third outlet channel is communicated with the outlet of the steam heating pot.

[0018] The third closing element is arranged on the fourth water outlet channel and communicates with the steam outlet channel.

[0019] The first, second and third bosses are arranged at intervals on the outer diameter of the rotating shaft, the second boss and the third boss are arranged on the same side of the rotating shaft, and the first boss is arranged on the opposite side of the rotating shaft relative to the second boss and the third boss.

[0020] The first boss interacts with or separates from the first closing element when the rotating shaft rotates, so as to realize the communication or closure between the water inlet channel and the first water outlet channel.

[0021] The second boss and the third boss respectively interact with or separate from the second closing element and the third closing element when the rotating shaft rotates, so as to realize the simultaneous communication or closure between the water inlet channel and the second water outlet channel, the third water outlet channel and the fourth water outlet channel.

[0022] The first closing element is provided with a first closing elastic member and a first sealing member, the first closing element is elastically movable towards the water inlet of the first water outlet channel at all times through the first closing elastic member, and the first closing element is sealed on the water inlet of the first water outlet channel through the first sealing member.

[0023] The second closing element is provided with a second closing elastic member and a second sealing member, the second closing element is elastically movable towards the water inlet of the second water outlet channel at all times through the second closing elastic member, and the second closing element is sealed on the water inlet of the second water outlet channel through the second sealing member.

[0024] The third closing element is provided with a third closing elastic member and a third sealing member, the third closing element is elastically movable towards the water inlet of the fourth water outlet channel at all times through the third closing elastic member, and the third closing element is sealed on the water inlet of the fourth water outlet channel through the third sealing member.

[0025] The utility model discloses a rotating shaft on the rotation of steering valve, to drive the closing element on different water outlet channel to move, thereby realizes the communication and closure between different water outlet channel and water inlet channel, and further replaces the defects of water path sealing of electromagnetic valve or similar valve body in the prior art, greatly reduces the production cost of product, simplifies structure and assembly process, also improves production efficiency, increases economic benefits, can effectively avoid the problem of water path not being open caused by too hard water quality and too much impurity, not only improves the use quality of product, but also reduces maintenance operation, improves user experience. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1The utility model discloses a coffee machine and waterway connection schematic diagram of steering valve of one embodiment of the utility model.

[0027] Figure 2 The utility model discloses a steering valve assembly structure schematic diagram of one embodiment of the utility model.

[0028] Figure 3 The utility model discloses a steering valve assembly structure schematic diagram of another view of one embodiment of the utility model.

[0029] Figure 4 The utility model discloses a steering valve assembly structure schematic diagram of another view of one embodiment of the utility model

[0030] Figure 5 The utility model discloses an assembly cross section structure schematic diagram of one embodiment of the utility model.

[0031] Figure 6 The utility model discloses an assembly cross section structure schematic diagram of another view of one embodiment of the utility model.

[0032] Figure 7 It is the exploded structure schematic diagram of pivot, first open and close element, first open and close elastic piece, second open and close element, second open and close elastic piece, third open and close element, third open and close elastic piece. Specific implementation

[0033] In order to make the above-mentioned purpose, features and advantages of the utility model more apparent, obvious and easy to understand, the specific implementation of the utility model is described in detail below in combination with the drawings. In the following description, a lot of specific details are set forth in order to fully understand the utility model. However, the utility model can be implemented in many other ways different from the description herein, and those skilled in the art can make similar improvements without departing from the connotation of the utility model, so the utility model is not limited by the following disclosed specific embodiments.

[0034] The utility model is further described below in combination with the drawings and embodiments.

[0035] Reference Figures 1-7 , the waterway steering valve, including steering valve 1, is provided with pivot 2, water inlet channel 3 and a plurality of water outlet channels on steering valve 1, and a plurality of water outlet channels are elastically provided with open and close elements respectively, pivot 2 is rotationally arranged on steering valve 1, and different open and close elements are driven to move when rotating, and different open and close elements realize that corresponding water outlet channels are communicated with water inlet channel 3 when moving.

[0036] The embodiment utilizes the rotation of the rotating shaft 2 on the steering valve 1 to drive the opening and closing elements on different water outlet channels to move, thereby realizing the communication and closure between different water outlet channels and the water inlet channel 3, thereby replacing the defects of the prior art in sealing the water path by the electromagnetic valve or similar valve body, greatly reducing the production cost, simplifying the structure and assembly process, improving the production efficiency and economic benefits, and effectively avoiding the problem of water path blockage caused by hard water and too many impurities, not only improving the use quality of the product, but also reducing the maintenance operation and improving the user experience.

[0037] The rotating shaft 2 is provided with a boss corresponding to different opening and closing elements, and the rotating shaft 2 drives the corresponding opening and closing elements to move through the corresponding boss when rotating.

[0038] In the embodiment, the bosses at different positions correspond to the opening and closing elements at different positions, and the rotating shaft 2 acts on the opening and closing elements at the corresponding positions by the bosses at the corresponding positions when rotating, thereby realizing the communication between the water outlet channel at the corresponding position and the water inlet channel 3.

[0039] The rotating shaft 2 has a plurality of bosses acting on the opening and closing elements at different positions, wherein the opening and closing elements are pushed open when acted on by the boss, and the water outlet channel at the position is communicated with the water inlet channel 3, otherwise the water outlet channel at the position is in a closed state and not communicated with the water inlet channel 3.

[0040] The opening and closing element is provided with an opening and closing elastic member and a sealing member, and the opening and closing element is elastically movable towards the water inlet or water outlet of the water outlet channel through the opening and closing elastic member, and is sealed on the water inlet or water outlet of the water outlet channel through the sealing member.

[0041] In the embodiment, the opening and closing element is elastically movable towards the water inlet or water outlet of the water outlet channel through the opening and closing elastic member in the normal state (i.e. without external force), and is sealed on the water inlet or water outlet of the water outlet channel through the sealing member, so that the water outlet channel is closed with the water inlet channel 3.

[0042] The steering valve 1 is provided with a positioning member 4 and a positioning elastic member 5, the positioning member 4 is elastically movable on the steering valve 1 through the positioning elastic member 5, and the rotating shaft 2 is provided with a positioning part 6 and is positioned and matched with the positioning member 4 through the positioning part 6 when rotating.

[0043] In the embodiment, the positioning member 4 is elastically movable towards the positioning part 6 through the positioning elastic member 5 in the normal state (i.e. without external force), so that the rotating shaft 2 can be positioned and rotated on the steering valve 1, avoiding displacement and displacement of the rotating shaft 2 when rotating, and ensuring the communication between the water outlet channel and the water inlet channel 3.

[0044] The turning valve 1 is provided with a micro switch, the rotating shaft 2 is provided with a cam 7, and the rotating shaft 2 interacts with or separates from the micro switch through the cam 7 during rotation.

[0045] The cooperation between the cam 7 and the micro switch is used to distinguish the rotating position of the rotating shaft 2, so as to identify the communication of different water outlet channels and the water inlet channel 3.

[0046] The rotating shaft 2 is provided with a knob 8, and the rotating shaft 2 is reversely rotated or continuously rotated in a single direction relative to the turning valve 1 through the knob 8.

[0047] In the embodiment, the user can act on the knob 8 during use, that is, the rotating shaft 2 is reversely rotated or continuously rotated in a single direction relative to the turning valve 1. In the embodiment, the rotating shaft 2 can be reversely rotated relative to the turning valve 1, so as to ensure the effective communication between the water outlet channel and the water inlet channel 3.

[0048] The above water route turning valve can be applied to a coffee machine, wherein the coffee machine comprises a water storage container 11, a flow meter 12, a water pump 13, a water heating pot 14, a pressure sealing group 15, and a steam heating pot 16.

[0049] The water storage container 11, the flow meter 12, and the water pump 13 are sequentially communicated, the turning valve 1 is respectively communicated with the water pump 13, the water heating pot 14, and the steam heating pot 16, the water heating pot 14 is communicated with the pressure sealing group 15, the pressure sealing group 15 is further communicated with a water outlet channel 17, and the turning valve 1 is further communicated with a steam outlet channel 18.

[0050] The turning valve 1 is sequentially and spacedly provided with a first water outlet channel 21, a second water outlet channel 22, a third water outlet channel 23, and a fourth water outlet channel 24.

[0051] The first water outlet channel 21 is provided with a first opening and closing element 21.1 and is communicated with the water heating pot 14.

[0052] The second water outlet channel 22 is provided with a second opening and closing element 22.1 and is communicated with the inlet of the steam heating pot 16.

[0053] The third water outlet channel 23 is communicated with the outlet of the steam heating pot 16.

[0054] The fourth water outlet channel 24 is provided with a third opening and closing element 24.1 and is communicated with the steam outlet channel 18.

[0055] In the embodiment, the coffee machine further comprises a control circuit for controlling the entire coffee machine electrical components.

[0056] The water storage container 11 is used for storing water, and comprises a water tank, a water tank cover, a leak stop valve assembly, etc.

[0057] The flow meter 12 mainly functions to control the water volume required by the coffee machine through the control circuit, and the coffee machine reacts when the set flow is reached, such as stopping working or turning to other working requirements, etc.

[0058] The water pump 13 mainly functions to pump water to the water heating pot 14 and the steam heating pot 16 for heating and providing pressure.

[0059] The water heating pot 14 and the steam heating pot 16 mainly function to heat water and vaporize the heated water into steam.

[0060] The pressure sealing group 15 mainly functions to seal the coffee outlet end, and the coffee outlet end can be opened only when a certain pressure is reached, and after being opened, the high-temperature and high-pressure water flows through the coffee powder in the water outlet channel 17, thereby achieving the purpose of extracting the coffee powder.

[0061] The first boss 2.1, the second boss 2.2 and the third boss 2.4 are arranged at intervals on the outer diameter of the rotating shaft 2, the second boss 2.2 and the third boss 2.4 are protruded towards the same side, and the first boss 2.1 is protruded towards a different side relative to the second boss 2.2 and the third boss 2.4.

[0062] The first boss 2.1 interacts with or separates from the first opening and closing element 21.1 when the rotating shaft 2 rotates, so as to realize the communication or closure between the water inlet channel 3 and the first water outlet channel 21.

[0063] The second boss 2.2 and the third boss 2.4 respectively interact with or separate from the second opening and closing element 22.1 and the third opening and closing element 24.1 at the same time when the rotating shaft 2 rotates, so as to realize the simultaneous communication or closure between the water inlet channel 3 and the second water outlet channel 22, the third water outlet channel 23 and the fourth water outlet channel 24.

[0064] The first opening and closing element 21.1 is provided with a first opening and closing elastic member 21.2 and a first sealing member 21.3, the first opening and closing element 21.1 is elastically movable towards the water inlet of the first water outlet channel 21 through the first opening and closing elastic member 21.2 at all times, and the first sealing member 21.3 seals the water inlet of the first water outlet channel 21.

[0065] The second opening and closing element 22.1 is provided with a second opening and closing elastic member 22.2 and a second sealing member 22.3, the second opening and closing element 22.1 is elastically movable towards the water inlet of the second water outlet channel 22 through the second opening and closing elastic member 22.2 at all times, and the second sealing member 22.3 seals the water inlet of the second water outlet channel 22.

[0066] The third closing element 24.1 is provided with a third closing elastic member 24.2 and a third sealing member 24.3, the third closing element 24.1 is elastically movable towards the water inlet of the fourth water outlet channel 24 by the third closing elastic member 24.2, and the third sealing member 24.3 seals the water inlet of the fourth water outlet channel 24.

[0067] In the embodiment, two micro switches are provided, i.e., a first micro switch 41 and a second micro switch 42, as shown in the figure, the first micro switch 41 and the second micro switch 42 are symmetrically arranged on the left and right sides of the cam 7. Figure 4

[0068] When the rotating shaft 7 rotates leftward or rightward, the first micro switch 41 and the second micro switch 42 are triggered to distinguish different operations, for example, leftward rotation represents steam generation, and rightward rotation represents hot water output.

[0069] When the rotating shaft 2 is in a natural state, the first boss 2.1 acts on the first closing element 21.1 to make the first closing element 21.1 overcome the elastic force of the first closing elastic member 21.2 and be pushed open, the first sealing member 21.3 is away from the water inlet of the first water outlet channel 21, the second closing element 22.1 and the third closing element 24.1 are respectively sealed to the water inlets of the second water outlet channel 22 and the third water outlet channel 23 by the second sealing member 22.3 and the third sealing member 24.3, at this time, the water inlet channel 3 is communicated with the first water outlet channel 21, the second water outlet channel 22, the third water outlet channel 23 and the fourth water outlet channel 24 are closed, and the coffee machine realizes coffee brewing.

[0070] When the rotating shaft 2 rotates leftward or rightward, the second boss 2.2 and the third boss 2.4 act on the second closing element 22.1 and the third closing element 24.1 respectively to make the second closing element 22.1 and the third closing element 24.1 respectively overcome the elastic force of the second closing elastic member 22.2 and the third closing elastic member 24.2 and be pushed open, the second sealing member 22.3 and the third sealing member 24.3 are respectively away from the water inlets of the second water outlet channel 22 and the third water outlet channel 23, the cam 7 also interacts with the first micro switch 41 and the second micro switch 2, the first closing element 21.1 is reset by the elastic force of the first closing elastic member 21.2 and seals the water inlet of the first water outlet channel 21 by the first sealing member 21.3, at this time, the water inlet channel 3 is communicated with the second water outlet channel 22, the third water outlet channel 23 and the fourth water outlet channel 24, and the first water outlet channel 21 is closed, and the coffee machine realizes steam output or hot water output.

[0071] In the embodiment, the second boss 2.2 and the third boss 2.4 simultaneously act on the second closing element 22.1 and the third closing element 24.1, the third water outlet channel 23 is an idle channel and is always open. ​

[0072] In the embodiment, the steering valve 1 is composed of a first valve seat 31, a second valve seat 32 and a cover plate 33. The first valve seat 31 and the second valve seat 32 are fixedly connected to each other and a rotating cavity is formed between the first valve seat 31 and the second valve seat 32. The rotating shaft 2 is rotatably arranged in the rotating cavity and the two ends of the rotating shaft 2 extend out of the rotating cavity and are provided with a cam 7 and a knob 8.

[0073] The first valve seat 31 is provided with a positioning hole in the direction of the rotating cavity. A connecting piece 34 is arranged on the positioning hole. The positioning piece 4 and the positioning elastic piece 5 are arranged in the positioning hole through the connecting piece 34. In addition, the end of the positioning piece 4 extends into the rotating cavity and is positioned and matched with the positioning part 6.

[0074] The first water outlet channel 21 is transversely arranged on the first valve seat 31. The second water outlet channel 22, the third water outlet channel 23 and the fourth water outlet channel 24 are linearly arranged on the first valve seat 31 in sequence. The cover plate 33 is arranged on the first water outlet channel 21, the second water outlet channel 22, the third water outlet channel 23 and the fourth water outlet channel 24. The cover plate 33 is arranged on the second valve seat 32 and realizes the assembly of the first through-closing element 21.1, the second through-closing element 22.1 and the third through-closing element 24.1. In addition, the end of the first through-closing element 21.1, the second through-closing element 22.1 and the third through-closing element 24.1 respectively extends into the rotating cavity and is matched and connected with the first boss 2.1, the second boss 2.2 and the third boss 2.4 respectively. In addition, the first through-closing element 21.1, the second through-closing element 22.1 and the third through-closing element 24.1 are respectively provided with sealing rings corresponding to the rotating cavity to avoid water flowing into the rotating cavity when the first through-closing element 21.1, the second through-closing element 22.1 and the third through-closing element 24.1 move.

[0075] The above is the preferred scheme of the utility model, and the basic principle, main features and advantages of the utility model are displayed and described. Those skilled in the art should understand that the utility model is not limited by the above-mentioned embodiments. The above-mentioned embodiments and the description in the specification only illustrate the principle of the utility model. Various changes and improvements can be made to the utility model without departing from the spirit and scope of the utility model. These changes and improvements all fall within the scope of the utility model claimed, and the protection scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A waterway diversion valve, comprising a diversion valve (1), characterized in that: The diverting valve (1) is provided with a rotating shaft (2), an inlet channel (3) and several outlet channels. Each of the outlet channels is elastically provided with a switching element. The rotating shaft (2) is rotatably mounted on the diverting valve (1) and drives different switching elements to move when rotating. When different switching elements are active, they realize the connection between the corresponding outlet channel and the inlet channel (3). The diverting valve (1) is provided with a micro switch. The rotating shaft (2) is provided with a cam (7) and interacts or separates with the micro switch through the cam (7) when rotating.

2. The water circuit diverting valve according to claim 1, characterized in that: The rotating shaft (2) is provided with a boss corresponding to different opening and closing elements. When the rotating shaft (2) rotates, it drives the corresponding opening and closing element to move through the corresponding boss.

3. The water circuit diverting valve according to claim 1, characterized in that: The opening and closing element is provided with an opening and closing elastic element and a sealing element. The opening and closing element moves elastically toward the water inlet or outlet of the water outlet channel through the opening and closing elastic element, and the sealing element acts on the water inlet or outlet of the water outlet channel for sealing.

4. The water circuit diverting valve according to claim 1, characterized in that: The steering valve (1) is provided with a positioning element (4) and a positioning elastic element (5). The positioning element (4) moves elastically on the steering valve (1) through the positioning elastic element (5). The rotating shaft (2) is provided with a positioning part (6), and when rotating, it is positioned and cooperated with the positioning element (4) through the positioning part (6).

5. The water circuit diverting valve according to claim 1, characterized in that: The rotating shaft (2) is provided with a knob (8), and the knob (8) can be rotated in opposite directions or continuously rotated in a single direction relative to the steering valve (1).

6. A coffee machine, characterized in that: The coffee machine includes the water circuit diverting valve according to any one of claims 1-5, comprising a water storage container (11), a flow meter (12), a water pump (13), a water heating pot (14), a pressure sealing assembly (15), and a steam heating pot (16); wherein the water storage container (11), the flow meter (12), and the water pump (13) are connected in sequence, the diverting valve (1) is connected to the water pump (13), the water heating pot (14), and the steam heating pot (16) respectively, the water heating pot (14) is connected to the pressure sealing assembly (15), the pressure sealing assembly (15) is also connected to a water outlet channel (17), and the diverting valve (1) is also connected to a steam outlet channel (18).

7. The coffee machine according to claim 6, characterized in that: The diverting valve (1) is provided with a first water outlet channel (21), a second water outlet channel (22), a third water outlet channel (23), and a fourth water outlet channel (24) at intervals. The first water outlet channel (21) is equipped with a first on / off element (21.1) and is connected to the water heating pot (14). The second water outlet channel (22) is equipped with a second on / off element (22.1) and is connected to the inlet of the steam heating pot (16). The third water outlet channel (23) is connected to the outlet of the steam heating pot (16). The fourth water outlet channel (24) is provided with a third shut-off element (24.1) and is connected to the steam outlet channel (18).

8. The coffee machine according to claim 7, characterized in that: The outer diameter of the rotating shaft (2) is provided with a first boss (2.1), a second boss (2.2) and a third boss (2.4) at intervals. The second boss (2.2) and the third boss (2.4) protrude in the same direction, and the first boss (2.1) protrudes in a different direction relative to the second boss (2.2) and the third boss (2.4). The first boss (2.1) is located on the rotating shaft (2) and rotates in relation to the first on / off element ( ). 21.1) Interact or separate to achieve communication or closure between the water inlet channel (3) and the first water outlet channel (21); The second boss (2.2) and the third boss (2.4) interact or separate from the second opening and closing element (22.1) and the third opening and closing element (24.1) respectively when the rotating shaft (2) rotates, so as to realize the simultaneous connection or closure between the water inlet channel (3) and the second water outlet channel (22), the third water outlet channel (23) and the fourth water outlet channel (24).

9. The coffee machine according to claim 7, characterized in that: The first opening and closing element (21.1) is provided with a first opening and closing elastic element (21.2) and a first sealing element (21.3). The first opening and closing element (21.1) moves elastically towards the inlet of the first water outlet channel (21) through the first opening and closing elastic element (21.2), and seals the inlet of the first water outlet channel (21) through the first sealing element (21.3). The second shut-off element (22.1) is provided with a second shut-off elastic element (22.2) and a second sealing element (22.3). The second shut-off element (22.1) moves elastically toward the inlet of the second water outlet channel (22) through the second shut-off elastic element (22.2) and seals the inlet of the second water outlet channel (22) through the second sealing element (22.3). The third shut-off element (24.1) is provided with a third shut-off elastic element (24.2) and a third sealing element (24.3). The third shut-off element (24.1) moves elastically toward the inlet of the fourth water outlet channel (24) through the third shut-off elastic element (24.2) and seals the inlet of the fourth water outlet channel (24) through the third sealing element (24.3).

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