Coffee extraction device

Abstract

The utility model discloses a coffee extraction device which comprises a funnel shell and a handle, a flow guide concave plate is arranged at the top of the funnel shell, at least one extraction outlet is formed in the bottom of the funnel shell, an extraction part is arranged in the funnel shell and comprises a fixing piece and a filter plate arranged below the fixing piece, and a connecting through hole is formed in the filter plate. A first cavity used for installing coffee capsules is formed between the fixing piece and the filter plate, a pressure storage mechanism capable of controlling the connecting through hole to be closed or opened according to the pressure in the first cavity is arranged between the filter plate and the bottom face of the funnel shell, and when hot water is injected at the beginning, the pressure in the first cavity is small, the pressure storage device controls the connecting through hole to be closed; when a certain amount of hot water is injected into the first cavity, the pressure in the first cavity is increased, and the pressure storage device controls the connection through hole to be opened, so that the extraction effect can be improved, and the purpose of sufficient extraction is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of coffee machines, and more specifically, relates to a coffee extraction device. Background Art

[0002] With the introduction of coffee, more and more people are attracted by its unique taste. Among them, capsule coffee has attracted much attention because it can be brewed into different flavors. Generally, capsule coffee includes a shell and an aluminum foil cover. The bottom of the capsule is the water inlet end, and the aluminum foil cover is the extraction outlet of the coffee liquid. The use process is to use the extraction device to pierce the bottom of the capsule, and let the heated water enter the bottom of the capsule. After the water pressure inside the capsule reaches a constant level, the aluminum foil cover is pierced, and the extracted coffee liquid penetrates out of the aluminum foil.

[0003] However, the coffee extraction devices currently on the market will directly discharge the coffee after the aluminum foil cover is broken, resulting in the inability to fully extract the capsule coffee, poor extraction effect, and poor taste. Summary of the invention

[0004] The main purpose of the utility model is to provide a coffee extraction device that can achieve sufficient extraction and thus improve the extraction efficiency and taste.

[0005] In order to achieve the above object, the technical solution of the utility model is:

[0006] A coffee extraction device comprises a funnel shell and a handle arranged on the outside of the funnel shell, a guide concave plate is arranged on the top of the funnel shell, at least one extraction outlet is arranged on the bottom of the funnel shell, an extraction part is arranged in the funnel shell, the extraction part comprises a fixing part and a filter plate arranged below the fixing part, a connecting through hole is arranged on the filter plate, a first cavity for installing a coffee capsule is arranged between the fixing part and the filter plate, the first cavity can be connected with the extraction outlet through the connecting through hole, and a pressure storage mechanism is arranged between the filter plate and the bottom surface of the funnel shell, which can control the closing or opening of the connecting through hole according to the pressure in the first cavity.

[0007] In a specific embodiment of the utility model, the pressure storage mechanism includes a return spring arranged perpendicular to the filter plate and a top ball arranged at one end of the return spring away from the bottom surface of the funnel shell.

[0008] In a specific embodiment of the present invention, a bottom plate for providing support for the top bead and the return spring is provided below the filter plate.

[0009] In a specific embodiment of the present invention, a plurality of connection holes are arranged at intervals on the upper end surface of the bottom plate, and the plurality of connection holes are arranged corresponding to the extraction outlets.

[0010] In a specific embodiment of the present invention, a mounting cavity for accommodating the top bead is provided on the lower end surface of the filter plate, and the mounting cavity can be connected with the first cavity through the connecting through hole.

[0011] In a specific embodiment of the present invention, a first sealing ring is provided between the filter plate and the extraction part.

[0012] In a specific embodiment of the utility model, a cutting ejector pin is disposed above the fixing member, and a plurality of through holes for the cutting ejector pin to pass through are provided at intervals on the upper end surface of the fixing member.

[0013] In a specific embodiment of the present invention, a second sealing ring is further provided on the upper end surface of the fixing member, and the second sealing ring is located on the outer sides of the plurality of through holes.

[0014] In a specific embodiment of the present invention, a sealing member is further provided on the top of the funnel shell, and the sealing member is located between the guide concave plate and the funnel shell.

[0015] In a specific embodiment of the utility model, a plurality of leakage holes are arranged at intervals on the upper end surface of the guide concave plate.

[0016] One of the above technical solutions of the utility model has at least one of the following advantages or beneficial effects:

[0017] The utility model arranges a guide concave plate on the top of the funnel shell, arranges at least one extraction outlet on the bottom of the funnel shell, further arranges an extraction part in the funnel shell, and arranges a first cavity for installing a coffee capsule between a fixing member and a filter plate, so that when hot water is just injected, the pressure in the first cavity is relatively small, and a pressure storage device controls the connecting through hole to remain closed, so that the first cavity maintains water storage; when a certain amount of hot water is injected, the pressure in the first cavity increases, and the pressure storage device controls the connecting through hole to open, so that the extraction effect can be improved, and the purpose of sufficient extraction is achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0019] Figure 1 It is an overall structural diagram of an embodiment of the utility model;

[0020] Figure 2 It is an exploded view of an embodiment of the utility model;

[0021] Figure 3 It is a partial cross-sectional view of an embodiment of the utility model;

[0022] Figure 4 This is an enlarged view of point A of an embodiment of the utility model;

[0023] Figure 5 This is a bottom view of a filter plate of an embodiment of the utility model;

[0024] Figure 6 It is a bottom plate structure diagram of an embodiment of the utility model. DETAILED DESCRIPTION

[0025] 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 represent the same or similar elements or elements having the same or similar functions from beginning to end. 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.

[0026] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are merely simplified descriptions for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0027] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0028] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more features.

[0029] In the description of the present utility model, it should be noted that, unless otherwise clearly stipulated and limited, the term "connection" should be understood in a broad sense. For example, it can be a fixed connection or a movable connection, a detachable connection or a non-detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be a direct connection, or an indirect connection through an intermediate medium, and it can be internal connection between two elements, indirect connection, or an interactive relationship between two elements.

[0030] The following disclosure provides many different embodiments or examples for implementing different solutions of the present invention.

[0031] Reference Figures 1 to 6 As shown, a coffee extraction device includes a funnel shell 1, a handle 2, an extraction part 4 and a pressure storage mechanism 6, wherein the handle 2 is arranged on the outside of the funnel shell 1, and the handle 2 and the funnel shell 1 are detachably connected or fixedly connected, an opening is arranged at the top of the funnel shell 1, a guide concave plate 3 is arranged at the opening, four leakage holes 31 are arranged at intervals on the upper end surface of the guide concave plate 3, and two extraction outlets are arranged at the bottom of the funnel shell 1.

[0032] In one embodiment of the utility model, the extraction part 4 is arranged in the funnel housing 1, and the extraction part 4 includes a fixing part 41 and a filter plate 42 arranged below the fixing part 41, and a connecting through hole 421 is provided on the filter plate 42. A first cavity 5 for installing a coffee capsule is provided between the fixing part 41 and the filter plate 42. The shape of the first cavity 5 is small at the top and large at the bottom, which is consistent with the shape of the coffee capsule. The first cavity 5 can be connected with the extraction outlet through the connecting through hole 421.

[0033] In one embodiment of the utility model, a pressure storage mechanism 6 is provided between the filter plate 42 and the bottom surface of the funnel shell 1, and can control the closing or opening of the connecting hole 421 according to the pressure size in the first cavity 5. The pressure storage mechanism 6 includes a reset spring 61 arranged perpendicular to the filter plate 42 and a top ball 62 arranged at one end of the reset spring 61 away from the bottom surface of the funnel shell 1. The top ball 62 can close the connecting hole 421 or open the connecting hole 421 under the action of the reset spring 61.

[0034] When hot water is first injected from the guide concave plate 3, the pressure in the first cavity 5 is relatively small, and the return spring 61 pushes the top ball 62 to keep the connecting through hole 421 closed, so that the first cavity 5 remains in a water storage state; after a certain amount of hot water is injected, the pressure in the first cavity 5 increases, pushing the top ball 62 away, compressing the return spring 61 and thus opening the connecting through hole 421, thereby achieving the purpose of full extraction, improving the extraction effect, and enhancing the extraction efficiency and taste.

[0035] In one embodiment of the utility model, a bottom plate 7 for providing support for the top ball 62 and the return spring 61 is provided below the filter plate 42, and two connecting holes 71 corresponding to the extraction outlet are provided at intervals on the upper end surface of the bottom plate 7 to ensure smooth flow of coffee after extraction.

[0036] In one embodiment of the utility model, the lower end surface of the filter plate 42 is provided with an installation cavity for accommodating the top bead 62, and the installation cavity can be connected to the first cavity 5 through the connecting through hole 421, and a first sealing ring 8 is provided between the filter plate 42 and the extraction part 4.

[0037] In one embodiment of the utility model, a cutting pin 9 is provided above the fixing member 41, and three through holes 411 for the cutting pin 9 to pass through are provided at intervals on the upper end surface of the fixing member 41, and a second sealing ring 412 is provided on the upper end surface of the fixing member 41, and the second sealing ring 412 is located on the outer side of the through hole 411, thereby increasing the overall sealing performance.

[0038] In one embodiment of the utility model, a sealing member 11 for increasing the sealing performance between the guide concave plate 3 and the funnel shell 1 is provided on the top of the funnel shell 1 , and the sealing member 11 is located between the guide concave plate 3 and the funnel shell 1 .

[0039] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A coffee extraction device, comprising a funnel housing (1) and a handle (2) arranged outside the funnel housing (1), characterized in that: The top of the funnel shell (1) is provided with a guide concave plate (3), the bottom of the funnel shell (1) is provided with at least one extraction outlet, the funnel shell (1) is provided with an extraction section (4), the extraction section (4) comprises a fixing member (41) and a filter plate (42) arranged below the fixing member (41), a connecting through hole (421) is provided on the filter plate (42), a first cavity (5) for mounting a coffee capsule is provided between the fixing member (41) and the filter plate (42), the first cavity (5) can be connected to the extraction outlet through the connecting through hole (421), and a pressure storage mechanism (6) is provided between the filter plate (42) and the bottom surface of the funnel shell (1), which can control the closing or opening of the connecting through hole (421) according to the pressure in the first cavity (5).

2. The coffee extraction device according to claim 1, characterized in that: The pressure storage mechanism (6) comprises a return spring (61) arranged perpendicular to the filter plate (42) and a top ball (62) arranged at one end of the return spring (61) away from the bottom surface of the funnel housing (1).

3. The coffee extraction device according to claim 2, characterized in that: A bottom plate (7) for providing support for the top ball (62) and the return spring (61) is provided below the filter plate (42).

4. The coffee extraction device according to claim 3, characterized in that: The upper end surface of the bottom plate (7) is provided with a plurality of connection holes (71) at intervals, and the plurality of connection holes (71) are arranged corresponding to the extraction outlet.

5. The coffee extraction device according to claim 2, characterized in that: The lower end surface of the filter plate (42) is provided with a mounting cavity for accommodating the top bead (62), and the mounting cavity can be connected to the first cavity (5) through the connecting through hole (421).

6. The coffee extraction device according to claim 2, characterized in that: A first sealing ring (8) is provided between the filter plate (42) and the extraction portion (4).

7. The coffee extraction device according to claim 1, characterized in that: A cutting ejector pin (9) is arranged above the fixing member (41), and a plurality of through holes (411) through which the cutting ejector pin (9) can pass are arranged at intervals on the upper end surface of the fixing member (41).

8. The coffee extraction device according to claim 7, characterized in that: The upper end surface of the fixing member (41) is also provided with a second sealing ring (412), and the second sealing ring (412) is located outside the plurality of through holes (411).

9. The coffee extraction device according to claim 1, characterized in that: A sealing member (11) is also provided on the top of the funnel shell (1), and the sealing member (11) is located between the guide concave plate (3) and the funnel shell (1).

10. The coffee extraction device according to claim 9, characterized in that: The upper end surface of the guide concave plate (3) is provided with a plurality of leakage holes (31) at intervals.

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