Coffee machine water outlet structure and coffee machine

Abstract

The water outlet structure of the coffee machine comprises a water pump and a water outlet plate arranged on the bottom face of a working cavity, the water outlet plate is provided with a drainage channel connected with the water pump, and the drainage channel comprises a water inlet and a water outlet. The water outlet is arranged relative to the axis of the working cavity or circumferentially distributed along the axis, the water inlet is eccentrically arranged relative to the axis of the working cavity, and the drainage channel radially extends from the axis of the working cavity to be communicated with the water inlet and the water outlet. The water outlet structure of the coffee machine is reasonable in structure, when the water outlet structure is applied to the portable coffee machine, the spatial position arrangement of parts in a main machine is reasonable and compact, and the stability of a connecting structure is good.

Description

Technical Field

[0001] The utility model relates to the technical field of coffee extraction equipment, more specifically to a water outlet structure of a coffee machine. Background Art

[0002] In the prior art, a portable coffee machine is provided with a water storage container with a heating function at the upper end, which is connected to a water pump through a water supply pipeline, and then the water pump delivers high-pressure hot water to the extraction module to brew and extract the capsule coffee. The advantages of miniaturization and portability are highlighted through highly integrated heating modules, control modules, water pumps, water supply channels, batteries, extraction components, etc. However, due to the setting of the water outlet pipeline, the space for each module inside the host of the existing portable coffee machine is unreasonable, and the space waste is relatively serious, which leads to the large size of the portable coffee machine. At the same time, due to the limitation of the internal space, the choice of the water pump placement position is limited. When taking into account the internal space, it is necessary to set a connecting pipeline between the water pump and the water outlet channel.

[0003] For example, a portable capsule coffee machine with Chinese utility model application number CN201922357919.7, the water storage tank of the coffee machine is connected to the capsule containing part through a water pipe, the water pump can pressurize the water in the water storage tank and transport it to the capsule containing part through the water pipe, the water pipe includes multiple sections of pipes, the multiple sections of pipes are connected by multiple connecting parts, the connecting parts include a boss and a sleeve arranged at the end of the pipe, the boss is installed in the sleeve through a sealing ring and then fixed to the sleeve by a retaining spring.

[0004] In order to ensure the leak-proof performance inside the coffee machine, the assembly requirements of various parts of the coffee machine are greatly improved, and there is still a defect that the coffee machine is prone to leakage due to external impact during use. Utility Model Content

[0005] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a water outlet structure of a coffee machine with a reasonable structure. When applied to a portable coffee machine, the spatial arrangement of the internal parts of the main machine is reasonable and compact, and the connection structure has good stability. To achieve the above purpose, the present invention provides the following technical solutions:

[0006] On the one hand, the utility model provides a water outlet structure of a coffee machine, comprising a water pump and a water outlet plate arranged on the bottom surface of a working chamber, the water outlet plate is provided with a drainage channel connected to the water pump, the drainage channel comprises a water inlet and a water outlet, the water outlet is arranged relative to the axis of the working chamber or distributed circumferentially along the axis, the water inlet is eccentrically arranged relative to the axis of the working chamber, the drainage channel radially extends from the axis of the working chamber to connect the water inlet and the water outlet, the water outlet plate is provided with a water pump installation position, and the water outlet pipe of the water pump is plugged into the water inlet.

[0007] As a further improvement of the present utility model, the water outlet plate comprises an upper plate and a lower plate which are assembled and locked together, the water outlet is arranged on the lower plate, the lower plate is provided with a groove which passes through the water outlet, the upper plate is provided with a boss which seals with the groove, the water inlet is arranged on the boss, and the boss and the groove are assembled to form a drainage channel with an edge seal.

[0008] As a further improvement of the present invention, a sealing ring is arranged in the groove, and a convex ring which seals with the sealing ring is arranged on the boss.

[0009] As a further improvement of the utility model, the groove is arranged on a raised cone on one side of the lower plate close to the upper plate, and the upper plate and the lower plate are provided with at least 3 fastening holes evenly distributed around the drainage channel, and the upper plate and the lower plate are tightly spliced ​​together by fasteners.

[0010] As a further improvement of the present invention, the upper plate is provided with an indicating groove at a position corresponding to the boss on a side away from the lower plate, and the indicating groove is in the shape of an elongated strip and is recessed toward the boss.

[0011] As a further improvement of the utility model, the water outlet plate also includes a mounting seat for installing the upper plate and the lower plate, the mounting seat is provided with a positioning hole that cooperates with the fastening hole, the mounting seat is provided with a through hole that cooperates with the groove and the boss, the through hole part is formed by the hole wall, and a step part is formed along the axial direction, the step part is formed by the hole wall and cooperates with the cone.

[0012] As a further improvement of the present invention, the mounting seat is arranged on the main body outer cylinder of the coffee machine, and forms a mounting groove with the inner wall of the main body outer cylinder. The mounting seat is also provided with a positioning ring coaxially arranged with the main body outer cylinder, and an annular clamping groove is formed between the positioning ring and the main body outer cylinder. The lower plate is provided with a clamping ring that cooperates with the annular clamping groove.

[0013] As a further improvement of the utility model, at least one radially open plug-in groove is provided on the positioning ring, and an insert piece plugged into the plug-in groove is provided along the radial edge of the clamping ring of the lower plate.

[0014] As a further improvement of the present invention, the upper plate extends downwardly with at least three positioning posts, and fastening holes are provided through the positioning posts, and the positioning posts are plug-fitted with the positioning holes.

[0015] The utility model also provides a coffee machine, which comprises a working chamber, and any one of the above-mentioned water outlet structures of the coffee machine is arranged below the working chamber.

[0016] In summary, the present invention includes at least one of the following beneficial technical effects:

[0017] By adopting the above technical solution, the utility model has the following advantages:

[0018] 1. By arranging a water inlet on the water outlet plate, the water inlet of the water outlet pipe connected to the water pump is eccentrically arranged, so that the eccentric arrangement of the water pump facilitates the reasonable layout of other components inside the coffee machine host, thereby making the internal components of the host compactly installed, further reducing the size of the portable coffee machine;

[0019] 2. The water pump installation position is set on the water outlet plate so that the water pump can be directly installed on the water outlet plate to cooperate with the water inlet on the water outlet plate, reducing the intermediate connecting pipes to increase the sealing stability of the water channel interface;

[0020] 3. The water outlet plate is configured as an upper plate and a lower plate which are separated into upper and lower parts, and the drainage channel is formed by combining the upper plate and the lower plate, so that the coffee machine is easy to process and produce, and the assembly process is also relatively simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic cross-sectional view of the structure of one embodiment of the utility model;

[0022] Figure 2 It is a structural schematic diagram of an upper plate of one embodiment of the utility model;

[0023] Figure 3 It is a structural schematic diagram of a lower plate of one embodiment of the utility model;

[0024] Figure 4 This is a schematic structural diagram of a mounting base in one embodiment of the utility model;

[0025] Figure 5 It is a schematic diagram of the installation structure of the lower plate of the utility model.

[0026] Figure numerals: 1. water pump; 2. drainage channel; 3. water inlet; 4. water outlet; 5. water pump installation position; 6. upper plate; 7. lower plate; 8. groove; 9. boss; 10. positioning column; 11. convex ring; 12. frustum; 13. fastening hole; 14. insert; 15. mounting seat; 16. positioning hole; 17. through hole; 18. step portion; 19. mounting groove; 20. positioning ring; 21. annular snap-fit ​​groove; 22. snap ring; 23. plug-in groove. DETAILED DESCRIPTION

[0027] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0028] In the description of the present invention, it should be understood that the terms "center", "lateral", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention 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 invention. Unless otherwise specified, "plurality" means two or more.

[0029] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection. It can also be a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0030] Although the embodiments of the utility model have been shown and described, those skilled in the art should understand that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the utility model, and the scope of the utility model is defined by the claims and their equivalents. Improvements made without creative work should be included in the scope of protection of the utility model.

[0031] One specific implementation example is Figure 1-5As shown, a water outlet structure of a coffee machine includes a water pump 1 and a water outlet plate. The water outlet plate is arranged on the bottom surface of the main working chamber of the coffee machine and is connected to the extraction component. A water pump 1 installation position and a water inlet 3 connected to the water outlet pipe of the water pump 1 are arranged on the upper end surface of the water outlet plate. The water inlet 3 is used to be mutually abutted and plugged with the water outlet pipe of the water pump 1. A sealing sleeve matching the water inlet 3 is preferably arranged on the water outlet pipe of the water pump 1. A water outlet 4 is arranged on the lower end surface of the water outlet plate. The water inlet 3 is eccentrically arranged relative to the center position of the water outlet plate. The water outlet 4 is arranged at the center position of the water outlet plate or close to the center position. A drainage channel 2 connecting the water outlet 4 and the water inlet 3 is arranged in the middle of the water outlet plate. The drainage channel 2 extends along the radial direction of the water outlet plate to form a channel shape in the shape of a long strip, a crescent or a gourd. When the coffee machine is working, the water pump 1 pumps out the heated hot water 1, and the hot water enters the extraction component through the water outlet plate, and the water outlet 4 of the water outlet plate is connected with the water inlet 3 of the extraction component. The reasonable arrangement of the positions of the water inlet 3 and the water outlet 4 is achieved by arranging the radially extending drainage channel 2 on the water outlet plate, and the installation position of the water pump 1 can be eccentrically arranged relative to the axis of the coffee machine, so that the position arrangement of the main components such as the battery and the motor inside the coffee machine is more reasonable and compact. At the same time, the water outlet pipe of the water pump 1 is directly connected to the water inlet 3, shortening the water path between the water outlet pipe of the water pump 1 and the water outlet plate, and reducing the probability of water leakage.

[0032] The water outlet plate can be selected as an integrated structure, preferably formed by the upper and lower plates 7, the upper plate 6 and the lower plate 7 are connected and locked with each other by fasteners, the fasteners are preferably screws, and screw holes are correspondingly arranged on the upper plate 6 and the lower plate 7, and the screw holes are evenly distributed around the drainage channel 2 to facilitate the overall processing and production of the water outlet plate. The water outlet 4 is arranged on the lower plate 7, and the lower plate 7 is provided with a groove 8 that penetrates the water outlet 4, and a sealing ring is arranged in the groove 8, and the upper plate 6 is provided with a boss 9 that seals with the groove 8, and the water inlet 3 is arranged on the boss 9, and the boss 9 is provided with a convex ring 11 that seals with the sealing ring, and the boss 9 and the groove 8 are assembled to form a drainage channel 2 with a sealed edge. Specifically, an annular clamping groove 21 is formed in the groove 8, and the sealing ring is clamped into the annular clamping groove 21.

[0033] The lower plate 7 forms a protruding cone 12 extending toward the upper plate 6 , and the groove 8 is arranged on the cone 12 , which greatly enhances the strength of the side wall of the groove 8 .

[0034] An indicating groove is provided on the upper plate 6 at a side away from the lower plate 7 corresponding to the position of the boss 9. The indicating groove is in the shape of a long strip and is recessed toward the boss 9. It can guide the fastening holes 13 of the upper plate 6 and the lower plate 7 to be aligned with each other for installation, so as to improve the convenience during the installation process.

[0035] The water outlet plate can be connected to the coffee machine body in any known manner in the prior art, such as threaded connection, welding, gluing, etc. Preferably, a mounting seat 15 is provided on the main body outer cylinder of the coffee machine, which can serve as a bearing bracket for each module of the main body. The mounting seat 15 is integrally formed with the main body outer cylinder to provide a strong bearing capacity. The upper plate 6 also serves as a part of the mounting bracket for each component in the main body. During production and assembly, the main body components can be first installed on the upper plate 6, and then the whole body can be installed and fixed on the mounting seat 15 in the working chamber, which simplifies the assembly difficulty and makes the assembled main body module more integrated. The mounting seat 15 is provided with a positioning hole 16 that cooperates with the screw hole. The upper plate 6 extends downward with at least three positioning columns 10. The screw hole is through-set on the positioning column 10. The positioning column 10 is plugged and matched with the positioning hole 16. The screw passes through the screw hole and the positioning hole 16 to install and clamp the upper plate 6 and the lower plate 7 on the mounting seat 15. The mounting seat 15 is provided with a through hole 17 that cooperates with the groove 8 and the boss 9. The through hole 17 is partially formed by the hole wall. The boss 9 of the upper plate 6 is inserted into the through hole 17, as well as a step portion 18 divided along the axial direction. The step portion 18 is formed by the hole wall and cooperates with the cone 12 of the lower plate 7. The upper plate 6 and the lower plate 7 are assembled and fixed to the mounting seat 15, which improves the assembly accuracy between the upper plate 6 and the lower plate 7 and effectively ensures the sealing of the upper plate 6 and the lower plate 7 at the drainage channel 2.

[0036] The mounting seat 15 and the inner wall of the main body outer cylinder form a mounting groove 19, and the mounting seat 15 is also provided with a positioning ring 20 coaxially arranged with the main body outer cylinder, and an annular clamping groove 21 is formed between the positioning ring 20 and the main body outer cylinder, and the lower plate 7 is provided with a clamping ring 22 that cooperates with the annular clamping groove 21. During assembly, the clamping ring 22 is clamped in the annular clamping groove 21, and the positioning ring 20 is provided with at least one radial opening plug-in groove 23, and the radial edge of the clamping ring 22 of the lower plate 7 is provided with a plug-in piece 14 plugged into the plug-in groove 23. Through double positioning and plug-in, the lower plate 7 is not prone to deflection during assembly, and the installation offset angle between the boss 9 of the upper plate 6 and the groove 8 of the lower plate 7 is reduced, thereby further ensuring the sealing of the upper plate 6 and the lower plate 7 at the drainage channel 2.

[0037] The utility model further provides a coffee machine including the water outlet plate structure of the above embodiment, wherein a water storage chamber is arranged at the upper end of the coffee machine, a working chamber is arranged in the middle section, a battery, a water pump 1, a heating module and a control module are arranged in the working chamber, a water outlet 4 of the water storage chamber is connected to a water inlet pipe of the water pump 1, and the water outlet plate is connected to an extraction component.

[0038] The above are only preferred implementations of the utility model. The protection scope of the utility model is not limited to the above embodiments. All technical solutions under the idea of ​​the utility model belong to the protection scope of the utility model. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the utility model should also be regarded as the protection scope of the utility model.

Claims

1. A water outlet structure for a coffee machine, characterized in that: The invention comprises a water pump (1) and a water outlet plate arranged on the bottom surface of a working chamber, wherein the water outlet plate is provided with a drainage channel (2) connected to the water pump (1), the drainage channel (2) comprises a water inlet (3) and a water outlet (4), the water outlet (4) is arranged relative to the axis of the working chamber or is arranged circumferentially along the axis, the water inlet (3) is arranged eccentrically relative to the axis of the working chamber, the drainage channel (2) extends radially from the axis of the working chamber to connect the water inlet (3) and the water outlet (4), the water outlet plate is provided with a water pump installation position, and the water outlet pipe of the water pump (1) is plugged into and abutted against the water inlet (3).

2. The water outlet structure of a coffee machine according to claim 1, characterized in that: The water outlet plate comprises an upper plate (6) and a lower plate (7) which are assembled and locked with each other, the water outlet (4) is arranged on the lower plate (7), the lower plate (7) is provided with a groove (8) which is connected with the water outlet (4), the upper plate (6) is provided with a boss (9) which is sealed with the groove (8), the water inlet (3) is arranged on the boss (9), and the boss (9) and the groove (8) are assembled to form a drainage channel (2) with a sealed edge.

3. The water outlet structure of a coffee machine according to claim 2, characterized in that: A sealing ring is arranged in the groove (8), and a convex ring (11) which seals with the sealing ring is arranged on the boss (9).

4. The water outlet structure of a coffee machine according to claim 2, characterized in that: The groove (8) is arranged on a raised cone (12) on one side of the lower plate (7) close to the upper plate (6); the upper plate (6) and the lower plate (7) are provided with at least three fastening holes (13) evenly distributed around the drainage channel (2); the upper plate (6) and the lower plate (7) are tightly assembled by fasteners.

5. The water outlet structure of a coffee machine according to claim 2, characterized in that: The upper plate (6) is provided with an indicating groove at a position corresponding to the boss (9) on a side away from the lower plate (7), and the indicating groove is in the shape of a long strip and is recessed toward the boss (9).

6. The water outlet structure of a coffee machine according to claim 4, characterized in that: The water outlet plate also includes a mounting seat (15) for mounting the upper plate (6) and the lower plate (7), the mounting seat (15) being provided with a positioning hole (16) cooperating with the fastening hole (13), the mounting seat (15) being provided with a through hole (17) cooperating with the groove (8) and the boss (9), the through hole (17) being partially formed by the hole wall, and a step portion (18) formed by dividing along the axial direction, the step portion (18) being formed by the hole wall and cooperating with the cone (12).

7. The water outlet structure of a coffee machine according to claim 6, characterized in that: The mounting seat (15) is arranged on the main body outer cylinder of the coffee machine, and forms a mounting groove (19) with the inner wall of the main body outer cylinder. The mounting seat (15) is also provided with a positioning ring (20) coaxially arranged with the main body outer cylinder, and an annular clamping groove (21) is formed between the positioning ring (20) and the main body outer cylinder. The lower plate (7) is provided with a clamping ring (22) that cooperates with the annular clamping groove (21).

8. The water outlet structure of a coffee machine according to claim 7, characterized in that: The positioning ring (20) is provided with at least one radially open plug-in groove (23), and the snap ring (22) of the lower plate (7) is provided with a plug-in sheet (14) plugged into the plug-in groove (23) along the radial direction.

9. The water outlet structure of a coffee machine according to claim 6, characterized in that: The upper plate (6) has at least three positioning columns (10) extending downward, and fastening holes (13) are provided through the positioning columns (10), and the positioning columns (10) are plug-fitted with the positioning holes (16).

10. A coffee machine, characterized in that: The coffee machine comprises a working chamber, below which is arranged a water outlet structure of the coffee machine according to any one of claims 1 to 9.

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