Gas-liquid double-control structure of coffee machine

Abstract

The utility model relates to the field of coffee machines, in particular to a gas-liquid double-control structure of a coffee machine. The gas-liquid double-control structure of the coffee machine comprises a shell, a liquid channel and a steam channel are arranged in the shell, a valve seat is arranged on the shell, a steam connector and a liquid connector are arranged on the valve seat, the steam connector is communicated with the steam channel, and the liquid connector is communicated with the liquid channel; a liquid valve element and a steam valve element are further included, the liquid valve element is installed on the valve seat in a sliding mode, the steam valve element is movably installed on the valve seat, and when the liquid valve element is pressed downwards, the liquid channel is opened. When the steam valve element is pressed downwards, the steam channel is closed; a guide hole is formed in the valve seat, a guide rod is fixedly installed on the steam valve element, and the guide rod is located in the guide hole. The gas-liquid double-control structure of the coffee machine has the advantages that steam and liquid can be controlled to flow out in a matched mode, and the structure is simple.

Description

Technical Field

[0001] This utility model relates to the field of coffee machines, and in particular to a dual gas-liquid control structure for coffee machines. Background Technology

[0002] Existing coffee machines use control valves to control the flow of steam and coffee, thereby enabling the coffee machine to extract coffee, froth milk, and release pressure.

[0003] For example, the patent document with publication number CN101785626B describes a steam conversion valve for a coffee machine, which includes a steam valve body and a steam knob. The steam valve body is a three-way valve with an axial through hole and a steam inlet. A steam outlet is located on one side of the steam inlet. The steam conversion valve also includes a steam regulating shaft. One end of the steam regulating shaft is fixed to the steam valve body, and the other end is sleeved with the steam knob. The steam valve body has a sliding groove, and the steam regulating shaft has an assembly hole. A positioning shaft is inserted into the sliding groove and the assembly hole. The steam regulating shaft moves linearly within the steam valve body to open and close the steam inlet and steam outlet.

[0004] For example, patent document CN220832710U discloses a heating system for a coffee machine, including a water tank, a brewing device, a steam output device, a heating device, and a switching three-way valve. The water tank is connected to the water inlet of the heating device through a pipe, the water outlet and steam outlet of the heating device are connected to end a of the switching three-way valve through a pipe, end b of the switching three-way valve is connected to the brewing device, and end c of the switching three-way valve is connected to the steam output device.

[0005] However, in the above technologies, gas and liquid control are independent and cannot be coordinated with each other.

[0006] To address these technical issues, a dual-control structure for gas and liquid in a coffee machine is proposed. Utility Model Content

[0007] To solve the above-mentioned technical problems, the purpose of this utility model is to provide a dual-control structure for a coffee machine that can control both steam and liquid flow, and has the advantages of simple structure.

[0008] The technical solution adopted by this utility model to solve the problem is: a dual-control structure for a coffee machine, comprising: a housing, wherein a liquid channel and a steam channel are provided inside the housing, a valve seat is provided on the housing, and a steam connector and a liquid connector are provided on the valve seat, the steam connector being connected to the steam channel and the liquid connector being connected to the liquid channel; further comprising a liquid valve core and a steam valve core, the liquid valve core being slidably mounted on the valve seat, and the steam valve core being movably mounted on the valve seat, wherein when the liquid valve core is pressed down, the liquid channel is opened; when the steam valve core is pressed down, the steam channel is closed; a guide hole is provided on the valve seat, and a guide rod is fixedly mounted on the steam valve core, the guide rod being located in the guide hole; further comprising a cam, the cam being drively connected to the steam valve core, and the cam abutting against the liquid valve core.

[0009] As a further improvement to the above technical solution, a spring is provided inside the valve seat, and the spring abuts against the liquid valve core.

[0010] As a further improvement to the above technical solution, the guide hole includes a closed section and an open section. When the steam valve core rotates, the guide rod moves from the closed section to the open section, and the steam valve core moves from the pressed state to the popped state.

[0011] As a further improvement to the above technical solution, a recess is provided in the middle of the guide hole, and the recess is connected to the opening section by an inclined surface.

[0012] As a further improvement to the above technical solution, the cam includes a guide surface and a retaining surface. The guide surface is inclined and the retaining surface is flat. When the guide rod is in the closed section, the retaining surface abuts against the liquid valve core.

[0013] As a further improvement to the above technical solution, a knob is also included, which is fixedly connected to the steam valve core.

[0014] As a further improvement to the above technical solution, the knob is provided with a slot, and a plug is fixedly installed on the cam, with the plug being inserted and fixed into the slot.

[0015] The beneficial effects of this utility model are: by setting a cam to link the steam valve core and the liquid valve core, the liquid and steam flow can be controlled synchronously. The structure is simple and the operation is convenient. Attached Figure Description

[0016] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments.

[0017] Figure 1 This is a schematic diagram of the preferred embodiment of the present invention;

[0018] Figure 2 A front view of the structure of this utility model;

[0019] Figure 3 for Figure 2 Schematic diagram of the cross-sectional structure along the AA direction;

[0020] Figure 4 for Figure 2 Schematic diagram of the cross-sectional structure in the BB direction;

[0021] Figure 5 This is an exploded view of the present invention;

[0022] Figure 6 This is a partial structural schematic diagram of the present invention;

[0023] Figure 7 for Figure 5 Enlarged structural diagram at point A;

[0024] In the diagram: 1. Housing; 11. Liquid passage; 12. Steam passage; 2. Valve seat; 21. Steam connector; 22. Liquid connector; 23. Guide hole; 231. Closing section; 232. Opening section; 233. Recess; 3. Liquid valve core; 31. Spring; 4. Steam valve core; 41. Guide rod; 5. Cam; 51. Guide surface; 52. Holding surface; 53. Insert block; 6. Knob; 61. Slot. Detailed Implementation

[0025] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0026] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0028] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0029] Reference Figures 1 to 7 A dual-control structure for a coffee machine includes: a housing 1, with a liquid channel 11 and a steam channel 12 inside the housing 1; a valve seat 2 on the housing 1, with a steam connector 21 and a liquid connector 22 on the valve seat 2, the steam connector 21 being connected to the steam channel 12 and the liquid connector 22 being connected to the liquid channel 11; a liquid valve core 3 and a steam valve core 4, the liquid valve core 3 being slidably mounted on the valve seat 2 and the steam valve core 4 being movably mounted on the valve seat 2; when the liquid valve core 3 is pressed down, the liquid channel 11 opens; when the steam valve core 4 is pressed down, the steam channel 12 closes; a guide hole 23 is provided on the valve seat 2, and a guide rod 41 is fixedly mounted on the steam valve core 4, the guide rod 41 being located inside the guide hole 23; and a cam 5, the cam 5 being drively connected to the steam valve core 4 and abutting against the liquid valve core 3. In use, rotating the steam valve core 4 causes the guide rod 41 to move along the guide hole 23, thus moving the steam valve core 4 closer to the valve seat 2 (pressed-down state) or away from the valve seat 2 (spring-up state). When the steam valve core 4 is in the spring-up state, the steam passage 12 is open, and steam can be discharged from the housing 1 through the steam passage 12 and the steam connector 21. Conversely, when the steam valve core 4 is in the pressed-down state, the steam passage 12 is sealed. Simultaneously, the rotation of the steam valve core 4 drives the cam 5 to rotate, which pushes the liquid valve core 3 downwards. At this time, the liquid passage 11 is opened, and liquid can be discharged from the housing 1 through the liquid passage 11 and the liquid connector 22. Conversely, when the cam 5 does not press the liquid valve core 3 downwards, the liquid valve core 3 springs up, thus closing the liquid passage 11.

[0030] In a preferred embodiment, a spring 31 is provided inside the valve seat 2, and the spring 31 abuts against the liquid valve core 3. When the cam 5 does not press down the liquid valve core 3, the liquid valve core 3 can spring up under the elastic force of the spring 31 to close the liquid passage 11.

[0031] In a preferred embodiment, the guide hole 23 includes a closed section 231 and an open section 232. When the steam valve core 4 rotates, the guide rod 41 moves from the closed section 231 to the open section 232, and the steam valve core 4 moves from the pressed state to the popped state.

[0032] In a preferred embodiment, the guide hole 23 has a recess 233 in the middle, and the recess 233 is connected to the opening section 232 by an inclined surface. In use, when the guide rod 41 moves in the closed section 231, the steam valve core 4 is always in a state of sealing the steam passage 12. When the guide rod 41 enters the recess 233, it can stop and produce a tactile feel when rotating. When the guide rod 41 passes the recess 233 and enters the opening section 232, the steam valve core 4 moves away from the steam passage 12, thereby connecting the steam passage 12 with the steam connector 21, allowing steam to be discharged.

[0033] In a preferred embodiment, the cam 5 includes a guide surface 51 and a retaining surface 52. The guide surface 51 is inclined, and the retaining surface 52 is flat. When the guide rod 41 is in the closed section 231, the retaining surface 52 abuts against the liquid valve core 3. This allows the steam valve core 4 and the liquid valve core 3 to cooperate with each other, forming various steam and liquid opening and closing combinations, including the following states: 1. When the guide rod 41 is in the closed section 231, the steam valve core 4 is pressed down, the steam channel 12 is closed, the liquid valve core 3 abuts against the retaining surface 52, the liquid valve core 3 is pressed down, and the liquid channel 11 is opened. At this time, the liquid can flow into the extraction unit, corresponding to the coffee machine's extraction function; 2. When the guide rod 41 is in the open section 232, the steam channel 12 is open, the liquid valve core 3 does not contact the cam 5 and bounces up, the liquid channel 11 is closed, and the steam can be discharged, corresponding to the coffee machine's depressurization or milk frothing function.

[0034] In a preferred embodiment, a knob 6 is also included, which is fixedly connected to the steam valve core 4.

[0035] In a preferred embodiment, the knob 6 is provided with a slot 61, and the cam 5 is fixedly installed with a plug 53, which is inserted and fixedly connected to the slot 61.

[0036] The above are merely preferred embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural transformations made based on the inventive concept of this utility model and the contents of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are included within the patent protection scope of this utility model.

Claims

1. A dual-control structure for gas and liquid in a coffee machine, characterized in that, include: The housing (1) has a liquid channel (11) and a steam channel (12) inside. The housing (1) has a valve seat (2) on it. The valve seat (2) has a steam connector (21) and a liquid connector (22). The steam connector (21) is connected to the steam channel (12), and the liquid connector (22) is connected to the liquid channel (11). It also includes a liquid valve core (3) and a steam valve core (4). The liquid valve core (3) is slidably mounted on the valve seat (2), and the steam valve core (4) is movably mounted on the valve seat (2). When the liquid valve core (3) is pressed down, the liquid passage (11) is opened; when the steam valve core (4) is pressed down, the steam passage (12) is closed. The valve seat (2) is provided with a guide hole (23), and a guide rod (41) is fixedly installed on the steam valve core (4), and the guide rod (41) is located inside the guide hole (23); It also includes a cam (5), which is connected to the steam valve core (4) and abuts against the liquid valve core (3).

2. The coffee machine gas-liquid dual control structure as described in claim 1, characterized in that: The valve seat (2) is provided with a spring (31), which abuts against the liquid valve core (3).

3. The coffee machine gas-liquid dual control structure as described in claim 2, characterized in that: The guide hole (23) includes a closed section (231) and an open section (232). When the steam valve core (4) rotates, the guide rod (41) moves from the closed section (231) to the open section (232), and the steam valve core (4) moves from the pressed state to the popped state.

4. The coffee machine gas-liquid dual control structure as described in claim 3, characterized in that: The guide hole (23) has a recess (233) in the middle, and the recess (233) is connected to the opening section (232) by an inclined surface.

5. The coffee machine gas-liquid dual control structure as described in claim 4, characterized in that: The cam (5) includes a guide surface (51) and a retaining surface (52). The guide surface (51) is inclined and the retaining surface (52) is flat. When the guide rod (41) is in the closed section (231), the retaining surface (52) abuts against the liquid valve core (3).

6. A dual-control structure for a coffee machine according to any one of claims 1-5, characterized in that: It also includes a knob (6), which is fixedly connected to the steam valve core (4).

7. The coffee machine gas-liquid dual control structure as described in claim 6, characterized in that: The knob (6) is provided with a slot (61), and a plug (53) is fixedly installed on the cam (5). The plug (53) is inserted into and fixed to the slot (61).

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