Limiting mechanism of brewing device and coffee machine

Abstract

The utility model discloses a limiting mechanism of a brewing device and a coffee machine, which are arranged between a lower piston and a frame of the brewing device, and comprise an elastic buckle, a limiting rod and a limiting rod, the bottom of the limiting pull buckle is mounted at the bottom of the frame, and the top of the limiting pull buckle extends into the limiting cavity to be clamped with the elastic buckle; wherein the elastic buckle comprises a mounting seat and at least two elastic sheets, the mounting seat is connected with the lower piston, the at least two elastic sheets are respectively mounted on the mounting seat, and a gap is formed between every two adjacent elastic sheets. Through the cooperation of the elastic buckle and the limiting pull buckle, the moving speed of the lower piston is smaller than the moving speed of the brewing cylinder, so that the volume of the brewing chamber is reduced, coffee powder cakes are formed, the structure is simple, and compared with the prior art, the production cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of coffee machine technology, and in particular to a limiting mechanism for a brewing device and a coffee machine. Background Technology

[0002] A coffee machine is a machine used to make coffee. It makes coffee by grinding coffee beans, pressurizing steam or using a water pump, etc. Coffee machines usually have multiple functions, such as adjusting the coffee strength and making different types of coffee; they are widely used in homes, offices, coffee shops and other places.

[0003] Current coffee machines, such as the U.S. Patent No. 5316781A, entitled "Brewing Device for Coffee Machine and Method for Producing Coffee," require a limiting mechanism to ensure that the speed of the lower piston is less than the speed of the brewing cylinder during coffee brewing, thereby reducing the volume of the brewing chamber and forming the coffee puck.

[0004] The existing technology, as shown in the Chinese Utility Model Patent with application number 202020713772.0 and patent name "A Limiting Device for a Beverage Brewing Unit", can achieve the limiting function well, but the structure is complex and the cost is high.

[0005] In view of this, a new technical solution is needed to solve the above-mentioned technical problems. Utility Model Content

[0006] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a limiting mechanism for a brewing device and a coffee machine to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the first aspect of this utility model provides a limiting mechanism for a brewing device, disposed between the lower piston and the frame of the brewing device, comprising:

[0008] An elastic buckle is installed on the lower piston, with a limiting cavity in the middle;

[0009] A limiting buckle is installed at the bottom of the frame and extends into the limiting cavity at the top to engage with the elastic buckle.

[0010] The elastic buckle includes a mounting base and at least two spring pieces. The mounting base is connected to the lower piston, and at least two spring pieces are respectively mounted on the mounting base, with a gap between adjacent spring pieces.

[0011] A further technical solution also includes a mounting component, wherein the mounting base has a first mounting groove, the lower piston has a second mounting groove, and the mounting component extends through the second mounting groove into the first mounting groove.

[0012] A further technical solution also includes a fixing member. The mounting base has a first mounting hole, and the mounting member has a second mounting hole. When the mounting member extends into the second mounting groove, the first mounting hole and the second mounting hole coincide. The fixing member fixes the mounting member in the mounting base through the first mounting hole and the second mounting hole.

[0013] In a further technical solution, the inner side of the spring sheet protrudes axially toward the mounting base to form a first locking protrusion for limiting the limiting buckle.

[0014] In a further technical solution, the outer side of the limiting buckle protrudes outward to form a second latching protrusion that cooperates with the first latching protrusion.

[0015] In a further technical solution, a limiting member is provided on the outer side of the lower piston, and a limiting groove is provided on the inner side of the brewing cylinder of the brewing device, wherein the limiting member is engaged with the limiting groove.

[0016] In a further technical solution, the lower piston is provided with a filter screen and a connector, the connector passing through the filter screen and connecting to the lower piston.

[0017] In a further technical solution, the lower piston is provided with an installation cavity, and a liquid connection channel for installing liquid pipelines is formed between the installation cavity and the mounting seat.

[0018] In a further technical solution, the elastic buckle also includes a mounting bracket, which is integrally formed with the mounting base. The mounting bracket and the mounting base are respectively recessed into the axis of the mounting base to form a groove for the passage of the liquid pipeline. The groove and the mounting cavity form the liquid connection channel.

[0019] Secondly, this utility model also provides a coffee machine, including a limiting mechanism for the brewing device.

[0020] Compared with the prior art, this utility model brings the following technical effects:

[0021] The present invention discloses a limiting mechanism for a brewing device. Through the cooperation of an elastic buckle and a limiting pull buckle, the speed at which the lower piston moves is less than the speed at which the brewing cylinder moves, thereby reducing the volume of the brewing chamber and forming a coffee cake. The structure is simple and reduces production costs compared to existing technologies.

[0022] The coffee machine of this utility model includes all the technical features and beneficial effects of a limiting mechanism for a brewing device, and therefore will not be described in detail here. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the structure of a brewing device according to the present invention.

[0025] Figure 2 yes Figure 1 A breakdown diagram is shown in the image.

[0026] Figure 3 yes Figure 2 A breakdown diagram from another perspective.

[0027] Figure 4 yes Figure 2 Another perspective on the breakdown diagram.

[0028] Figure 5 yes Figure 1 The sectional view in the image.

[0029] Figure 6 This is a schematic diagram of the elastic buckle structure.

[0030] Figure 7 This is a schematic diagram of the brewing device.

[0031] Explanation of key component symbols:

[0032] 1. Lower piston; 11. Second mounting groove; 12. Limiting component; 13. Filter screen; 14. Connecting component; 15. Mounting cavity;

[0033] 2. Framework;

[0034] 3. Elastic buckle; 31. Limiting cavity; 32. Mounting base; 321. First mounting groove; 322. First mounting hole; 33. Spring piece; 331. First locking protrusion; 34. Mounting component; 341. Second mounting hole; 35. Fixing component; 36. Mounting bracket; 361. Groove;

[0035] 4. Limiting buckle; 41. Second locking protrusion;

[0036] 5. Brewing tank; 51. Limiting groove. Detailed Implementation

[0037] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0038] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0039] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0040] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0041] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0042] Example 1

[0043] See Figure 1-7 As shown, a brewing device is disposed between a lower piston 1 and a frame 2, comprising: an elastic buckle 3 installed on the lower piston 1, with a limiting cavity 31 in the middle; and a limiting pull buckle 4, with its bottom installed on the bottom of the frame 2 and its top extending into the limiting cavity 31 to engage with the elastic buckle 3. The elastic buckle 3 includes a mounting base 32 and at least two spring pieces 33. The mounting base 32 is connected to the lower piston 1, and at least two spring pieces 33 are respectively installed on the mounting base 32, with a gap between adjacent spring pieces 33. Through the cooperation of the elastic buckle 3 and the limiting pull buckle 4, the speed at which the lower piston 1 moves is less than the speed at which the brewing cylinder 5 moves, thereby reducing the volume of the brewing chamber and forming a coffee cake. The structure is simple and reduces production costs compared to existing technologies.

[0044] In a further specific embodiment, a mounting component 34 is also included. The mounting base 32 has a first mounting groove 321, and the lower piston 1 has a second mounting groove 11. The mounting component 34 extends through the second mounting groove 11 and into the first mounting groove 321. By providing the mounting component 34, the mounting base 32 is installed inside the lower piston 1, resulting in a simple structure and strong stability.

[0045] In a further specific embodiment, a fixing member 35 is also included. The mounting base 32 has a first mounting hole 322, and the mounting member 34 has a second mounting hole 341. When the mounting member 34 extends into the second mounting groove 11, the first mounting hole 322 and the second mounting hole 341 coincide. The fixing member 35 fixes the mounting member 34 to the mounting base 32 through the first mounting hole 322 and the second mounting hole 341. It should be noted that in this embodiment, the fixing member 35 is a screw. The mounting member 34 is fixed to the mounting base 32 by the screw, thereby fixing the mounting base 32 to the lower piston 1.

[0046] In a further specific embodiment, the inner side of the spring piece 33 protrudes axially toward the mounting base 32 to form a first locking protrusion 331 for limiting the limiting buckle 4. When the elastic buckle 3 moves up and down on the limiting buckle 4, the first locking protrusion 331 increases the friction between them. The outer side of the limiting buckle 4 protrudes outward to form a second locking protrusion 41 that cooperates with the first locking protrusion 331. With the cooperation of the second locking protrusion 41, the movement speed of the lower piston 1 is limited, thereby realizing the brewing of coffee.

[0047] In a further specific embodiment, a limiting member 12 is provided on the outer side of the lower piston 1, and a limiting groove 51 is provided on the inner side of the brewing cylinder 5 of the brewing device, and the limiting member 12 is engaged with the limiting groove 51.

[0048] The position of the lower piston 1 is restricted by the setting of the limiting member 12 and the limiting groove 51. It should be noted that the limiting groove 51 in this embodiment can also play a guiding role to prevent deviation during movement.

[0049] In a further specific embodiment, the lower piston 1 is provided with a filter screen 13 and a connector 14, the connector 14 passing through the filter screen 13 and connecting to the lower piston 1. This arrangement has a simple structure and is easy to install.

[0050] In a further specific embodiment, the lower piston 1 is provided with a mounting cavity 15, and a liquid connection channel for installing a liquid pipeline is formed between the mounting cavity 15 and the mounting base 32. The liquid pipeline is fixed by the cooperation between the mounting cavity 15 and the mounting base 32.

[0051] In a further specific embodiment, the elastic buckle 3 also includes a mounting bracket 36, which is integrally formed with the mounting base 32. The mounting bracket 36 and the mounting base 32 are respectively recessed into the axis of the mounting base 32 to form grooves 361 for the passage of the liquid pipeline. The grooves 361 and the mounting cavity 15 form the liquid connection channel. The liquid pipeline is mounted on the mounting bracket 36 and the mounting base 32 through the grooves 361, and simultaneously, with the cooperation of the mounting cavity 15 and the mounting base 32, the liquid pipeline is fixed.

[0052] Example 2

[0053] See Figure 1-7 As shown, the coffee machine includes a limiting mechanism for the brewing device. The coffee machine of this embodiment includes all the technical features and effects of Embodiment 1, and therefore will not be repeated here.

[0054] The terms "specific example" or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0055] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments, as long as they meet the purpose of the present invention, and all such changes should be within the scope of protection claimed by the present invention. For example, different combinations of specific embodiments and different combinations of distinguishing technical features.

Claims

1. A limiting mechanism for a brewing device, disposed between the lower piston (1) and the frame (2) of the brewing device, characterized in that: include: An elastic buckle (3) is installed on the lower piston (1), and a limiting cavity (31) is opened in the middle; The limiting buckle (4) is installed at the bottom of the frame (2) and extends into the limiting cavity (31) at the top to engage with the elastic buckle (3); The elastic buckle (3) includes a mounting base (32) and at least two spring pieces (33). The mounting base (32) is connected to the lower piston (1). At least two spring pieces (33) are respectively mounted on the mounting base (32), and there is a gap between adjacent spring pieces (33).

2. The limiting mechanism of a brewing device according to claim 1, characterized in that: It also includes a mounting component (34), the mounting base (32) has a first mounting groove (321), the lower piston (1) has a second mounting groove (11), and the mounting component (34) extends into the first mounting groove (321) through the second mounting groove (11).

3. The limiting mechanism of a brewing device according to claim 2, characterized in that: It also includes a fixing member (35). The mounting base (32) has a first mounting hole (322), and the mounting member (34) has a second mounting hole (341). When the mounting member (34) extends into the second mounting groove (11), the first mounting hole (322) coincides with the second mounting hole (341). The fixing member (35) fixes the mounting member (34) in the mounting base (32) through the first mounting hole (322) and the second mounting hole (341).

4. The limiting mechanism of a brewing device according to claim 1, characterized in that: The inner side of the spring piece (33) protrudes axially toward the mounting base (32) to form a first latching protrusion (331) for limiting the limiting buckle (4).

5. The limiting mechanism of a brewing device according to claim 4, characterized in that: The outer side of the limiting buckle (4) protrudes outward to form a second latch (41) that cooperates with the first latch (331).

6. The limiting mechanism of a brewing device according to claim 1, characterized in that: A limiting member (12) is provided on the outer side of the lower piston (1), and a limiting groove (51) is provided on the inner side of the brewing cylinder (5) of the brewing device. The limiting member (12) is engaged with the limiting groove (51).

7. The limiting mechanism of a brewing device according to claim 1, characterized in that: The lower piston (1) is provided with a filter screen (13) and a connector (14), and the connector (14) passes through the filter screen (13) and is connected to the lower piston (1).

8. The limiting mechanism of a brewing device according to claim 1, characterized in that: The lower piston (1) is provided with an installation cavity (15), and a liquid connection channel for installing liquid pipelines is formed between the installation cavity (15) and the mounting seat (32).

9. The limiting mechanism of a brewing device according to claim 8, characterized in that: The elastic buckle (3) also includes a mounting bracket (36), which is integrally formed with the mounting base (32). The mounting bracket (36) and the mounting base (32) are recessed into the axis of the mounting base (32) to form a groove (361) for the passage of the liquid pipeline. The groove (361) and the mounting cavity (15) form the liquid connection channel.

10. A coffee machine, characterized in that: Includes a limiting mechanism for a brewing device as described in any one of claims 1-9.

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