Coffee capsule extraction device

Abstract

The utility model relates to the technical field of coffee machines, in particular to a coffee capsule extraction device which comprises an upper cover and a base assembly detachably connected to the lower portion of the upper cover. An installation seat is placed between the upper cover and the base assembly, a gap is formed between the installation seat and the inner top face of the upper cover, a liquid inlet hole is formed in the middle of the upper end of the upper cover, and a pricking needle assembly is installed in the liquid inlet hole. The whole pricking needle assembly is designed to be of an integrally-formed structure, during installation, only the connecting ring needs to be fixed to the upper portion of the installation base through a fastener, and then when the upper cover and the base assembly are connected, insertion and communication of the insertion part and the liquid inlet hole of the upper cover can be completed at a time, so that the overall assembly convenience is effectively improved, and the assembly efficiency is improved. And meanwhile, the mounting stability of the pricking needle assembly is ensured.

Description

Technical Field

[0001] This utility model relates to the field of coffee machine technology, and in particular to an extraction device for coffee capsules. Background Technology

[0002] Traditionally, coffee is made by pouring hot water into a cup to brew coffee grounds. The coffee brewed this way generally doesn't taste good and can't satisfy people who are particular about the taste. Therefore, capsule coffee machines have gradually come into people's view.

[0003] The working principle of a capsule coffee machine is mainly to puncture the capsule with a needle, and then a water pump delivers water to the extraction device to achieve extraction. Current extraction devices generally include a needle assembly, which is mainly used to puncture the capsule to ensure the subsequent fusion of water and coffee powder. For details, please refer to the coffee capsule extraction device disclosed in Chinese Patent Announcement No. CN218009340U.

[0004] However, in the current structure of the needle assembly, the needle rod is mainly designed to float inside the mounting base, and the entire assembly process is relatively complicated. Therefore, the actual assembly and subsequent maintenance are not very convenient. Therefore, in order to optimize the installation and maintenance reliability of the existing needle assembly, we propose a coffee capsule extraction device. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies, such as poor assembly and subsequent maintenance convenience, by proposing a coffee capsule extraction device.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] Design a coffee capsule extraction device, including:

[0008] The top cover and the base assembly detachably connected to the bottom of the top cover;

[0009] A mounting base is placed between the top cover and the base assembly. A gap exists between the mounting base and the inner top surface of the top cover. A liquid inlet hole is formed in the middle of the upper end of the top cover. A needle assembly is installed inside the liquid inlet hole. At least a portion of the needle assembly is installed in the gap.

[0010] Furthermore, the liquid inlet includes:

[0011] A central hole is formed at the center of the upper cover, and a first stepped hole and a second stepped hole are connected below the central hole. The gap is formed by the second stepped hole and the upper top surface of the mounting base.

[0012] Furthermore, the needle assembly includes a connector that inserts into the first stepped hole;

[0013] A connecting ring is formed on the outer side of the plug portion, the connecting ring is placed in the gap, two locking holes are formed on the end face of the plug portion, and two locking posts are formed on the upper end of the mounting base. The locking holes and the locking posts are connected by fasteners.

[0014] A liquid outlet pipe is also connected to the bottom of the insertion part.

[0015] Furthermore, the liquid outlet pipe includes a cylindrical portion and a conical portion formed at the bottom of the cylindrical portion. The interiors of the cylindrical portion and the conical portion are hollowed out, and a liquid outlet hole is also provided on the outer side of the conical portion.

[0016] Furthermore, a first sealing ring is placed between the top of the insertion part and the first stepped hole, and the upper side of the mounting base has a through hole for the liquid outlet pipe to pass through, and a second sealing ring sleeved on the outside of the liquid outlet pipe is installed in the through hole.

[0017] Furthermore, the base assembly includes a support basket and a liquid outlet.

[0018] The support basket and the top cover are threaded together. A pad is placed on the inner fold of the support basket, and the liquid outlet is fixed to the bottom of the support basket.

[0019] Furthermore, the end face of the pad has several protrusions and several liquid holes;

[0020] The mounting base has an annular groove at its bottom, in which a third sealing ring is disposed, and the bottom of the third sealing ring is in contact with the pad.

[0021] Furthermore, a guide tube is fixedly installed on the inner side of the liquid outlet hopper, and the guide tube is sleeved on the outer side of several liquid holes.

[0022] The present invention provides an extraction device for coffee capsules, which has the following advantages: The overall structure of the present invention is simple. By optimizing the installation method of the needle assembly, the entire needle assembly is designed as an integral molding structure. During installation, the connecting ring is simply fixed to the top of the mounting base with fasteners. Then, when the top cover and the base assembly are connected, the insertion part and the liquid inlet of the top cover can be connected in one step. This effectively improves the overall assembly convenience and ensures the installation stability of the needle assembly. In addition, its convenient disassembly and assembly capability also improves the convenience of subsequent maintenance of the needle assembly. Attached Figure Description

[0023] Figure 1 This is a perspective view of the present utility model;

[0024] Figure 2 This is a cross-sectional view of the present invention;

[0025] Figure 3 This is a schematic diagram of the upper cover structure of this utility model;

[0026] Figure 4 This is a schematic diagram of the exploded structure of this utility model;

[0027] Figure 5 This is a schematic diagram of the needle assembly structure of this utility model.

[0028] In the diagram: 1. Top cover; 11. Gap; 12. Liquid inlet; 121. Center hole; 122. First stepped hole; 123. Second stepped hole; 2. Base assembly; 21. Support basket; 22. Liquid outlet hopper; 23. Pad; 24. Flow guide tube; 3. Mounting base; 30. Locking post; 31. Perforation; 32. Second sealing ring; 33. Third sealing ring; 4. Needle assembly; 41. Insertion part; 411. Locking hole; 42. Connecting ring; 43. Liquid outlet pipe; 431. Cylindrical part; 432. Conical part; 433. Liquid outlet; 44. First sealing ring. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0030] Reference Figure 1-5 In one embodiment of this utility model, a coffee capsule extraction device is disclosed. This extraction device is connected to the bottom of a machine and is supplied with water from a water tank above the machine during operation. When water enters the extraction device, coffee is extracted. Specifically, the extraction device includes:

[0031] The upper cover 1 and the base assembly 2 detachably connected to the lower part of the upper cover 1;

[0032] A mounting base 3 is placed between the upper cover 1 and the base assembly 2. The interior of the mounting base 3 is used to accommodate coffee capsules. There is a gap 11 between the mounting base 3 and the inner top surface of the upper cover 1. A liquid inlet hole 12 is formed in the middle of the upper end of the upper cover 1. A needle assembly 4 is installed inside the liquid inlet hole 12. At least a portion of the needle assembly 4 is installed in the gap 11.

[0033] In other words, in actual use, first open the base assembly 2, place the coffee capsule inside the mounting base 3, then reconnect the base assembly 2, and puncture the capsule with the needle assembly 4. When the water in the upper water tank of the machine enters the interior of the mounting base 3 through the liquid inlet hole 12, extraction can be performed. The extracted coffee liquid flows out from the base assembly 2.

[0034] In some embodiments, the liquid inlet 12 of this invention includes:

[0035] A central hole 121 is formed in the center of the upper cover 1, and a first stepped hole 122 and a second stepped hole 123 are connected below the central hole 121. The gap 11 is formed by the second stepped hole 123 and the upper top surface of the mounting base 3. Specifically, in this embodiment, at least two connecting posts are formed on the upper top surface of the mounting base 3, and the gap 11 is formed between the connecting posts and the second stepped hole 123. In addition, in this embodiment, the diameter of the second stepped hole 123 is larger than the diameter of the first stepped hole 122.

[0036] Based on the above embodiments, the needle assembly 4 in this embodiment includes an insertion part 41 that is inserted into the first stepped hole 122, and the outer diameter of the insertion part 41 is adapted to the inner diameter of the first stepped hole 122.

[0037] A connecting ring 42 is formed on the outer side of the insertion part 41. The connecting ring 42 is placed in the gap 11. Two locking holes 411 are formed on the end face of the insertion part 41. Two locking posts 30 are formed on the upper end of the mounting base 3. The locking holes 411 and the locking posts 30 are connected by fasteners. In this preferred embodiment, the fastener is a bolt. The bolt passes through the locking holes 411 and is threadedly connected to the locking posts 30 on the upper side of the mounting base 3, so as to complete the connection and fixation of the entire needle assembly 4. In addition, the outer diameter of the connecting ring 42 in this embodiment is adapted to the inner diameter of the second stepped hole 123.

[0038] A liquid outlet pipe 43 is also connected to the bottom of the insertion part 41.

[0039] In other words, this utility model adopts a one-piece molded structure for the entire needle assembly 4. During installation, it is only necessary to fix its connecting ring 42 to the top of the mounting base 3 with fasteners. Subsequently, when the upper cover 1 and the base assembly 2 are connected, the insertion part 41 and the liquid inlet hole 12 of the upper cover 1 can be connected in one step. This effectively improves the overall assembly convenience and ensures the installation stability of the needle assembly 4.

[0040] Furthermore, in this embodiment, the liquid outlet tube 43 includes a cylindrical portion 431 and a conical portion 432 formed at the bottom of the cylindrical portion 431. The interiors of the cylindrical portion 431 and the conical portion 432 are hollowed out, and a liquid outlet hole 433 is also provided on the outer side of the conical portion 432. In this embodiment, multiple liquid outlet holes 433 can be provided, and the specific number can be adapted by those skilled in the art and is not limited here. The conical portion 432 is used to accurately puncture the coffee capsule, and the water that enters is discharged outward along the cylindrical portion 431, the conical portion 432 and the liquid outlet hole 433 to achieve extraction of the coffee capsule.

[0041] Preferably, in this embodiment, a first sealing ring 44 is placed between the top of the insertion part 41 and the first stepped hole 122. The upper side of the mounting base 3 has a through hole 31 for the liquid outlet pipe 43 to pass through. A second sealing ring 32 is installed in the through hole 31 and sleeved on the outside of the liquid outlet pipe 43. Obviously, in this embodiment, the first sealing ring 44 is used to waterproof seal between the insertion part 41 and the first stepped hole 122, and the second sealing ring 32 is used to waterproof seal between the cylindrical part 431 and the through hole 31. At the same time, during installation, the second sealing ring 32 is first installed inside the through hole 31, which is a stepped hole. Then, the liquid outlet pipe 43 is passed through the inner hole of the second sealing ring 32 to achieve waterproofing and guide the installation of the liquid outlet pipe 43, so as to ensure that there is no leakage problem during water extraction.

[0042] In some embodiments, the base assembly 2 of the present invention includes a support basket 21 and a liquid outlet 22;

[0043] The support basket 21 and the upper cover 1 are threaded together. A pad 23 is placed on the inner fold of the support basket 21. The liquid dispensing funnel 22 is fixed to the bottom of the support basket 21. Of course, in this embodiment, the liquid dispensing funnel 22 and the support basket 21 can also be fixed with bolts. The pad 23 is used to support the coffee capsule.

[0044] Specifically, in this embodiment, the end face of the pad 23 has several protrusions and several liquid holes. The protrusions are used to provide an anti-slip effect. In this embodiment, the protrusions are set as rectangular structures. The liquid holes are used to discharge the extracted coffee liquid downwards.

[0045] The mounting base 3 has an annular groove at its bottom, and a third sealing ring 33 is provided in the annular groove. The bottom of the third sealing ring 33 is in contact with the pad 23. As mentioned above, the third sealing ring 33 in this embodiment is used to achieve a sealing connection between the pad 23 and the mounting base 3, so as to achieve waterproofing. Preferably, the cross-section of the third sealing ring 33 in this embodiment is L-shaped.

[0046] It should be noted that, in this embodiment, a guide tube 24 is fixedly installed on the inner side of the liquid outlet 22. The guide tube 24 is sleeved on the outer side of several liquid holes. The guide tube 24 is used to collect the dripping coffee liquid in a concentrated and convenient manner. In addition, a connecting ring is formed at the bottom of the liquid outlet 22 in this utility model. The guide tube 24 is inserted into the inner side of the connecting ring for easy installation and positioning.

[0047] In summary, the overall structure of this utility model is simple. By optimizing the installation method of the needle assembly 4, the entire needle assembly 4 is designed as an integral molding structure. During installation, the connecting ring 42 only needs to be fixed to the top of the mounting base 3 with fasteners. After that, when the upper cover 1 and the base assembly 2 are connected, the insertion part 41 and the liquid inlet hole 12 of the upper cover 1 can be connected in one step. This effectively improves the overall assembly convenience and ensures the installation stability of the needle assembly 4. In addition, its convenient disassembly and assembly capability also improves the convenience of subsequent maintenance of the needle assembly 4.

[0048] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An extraction device for coffee capsules, characterized in that, include: The top cover (1) and the base assembly (2) detachably connected to the bottom of the top cover (1); A mounting base (3) is placed between the upper cover (1) and the base assembly (2). A gap (11) is formed between the mounting base (3) and the inner top surface of the upper cover (1). An inlet hole (12) is formed in the middle of the upper end of the upper cover (1). A needle assembly (4) is installed inside the inlet hole (12). At least a portion of the needle assembly (4) is installed in the gap (11).

2. The coffee capsule extraction device according to claim 1, characterized in that: The liquid inlet (12) includes: A central hole (121) is formed in the center of the upper cover (1), and a first stepped hole (122) and a second stepped hole (123) are connected below the central hole (121). The gap (11) is formed by the second stepped hole (123) and the upper top surface of the mounting base (3).

3. The coffee capsule extraction device according to claim 2, characterized in that: The needle assembly (4) includes a connector (41) that is inserted into the first stepped hole (122); A connecting ring (42) is formed on the outer side of the plug (41), the connecting ring (42) is placed in the gap (11), two locking holes (411) are formed on the end face of the plug (41), and two locking posts (30) are formed on the upper end of the mounting base (3). The locking holes (411) and the locking posts (30) are connected by fasteners. A liquid outlet pipe (43) is also connected to the bottom of the plug part (41).

4. The coffee capsule extraction device according to claim 3, characterized in that: The liquid outlet pipe (43) includes a cylindrical part (431) and a conical part (432) formed at the bottom of the cylindrical part (431). The interior of the cylindrical part (431) and the conical part (432) are hollowed out, and a liquid outlet hole (433) is also provided on the outside of the conical part (432).

5. The coffee capsule extraction device according to claim 3, characterized in that: A first sealing ring (44) is placed between the top of the plug part (41) and the first stepped hole (122). The upper side of the mounting base (3) has a through hole (31) for the liquid outlet pipe (43) to pass through. A second sealing ring (32) sleeved on the outside of the liquid outlet pipe (43) is installed in the through hole (31).

6. The coffee capsule extraction device according to claim 1, characterized in that: The base assembly (2) includes a support basket (21) and a liquid outlet (22); The support basket (21) and the top cover (1) are threaded together. A pad (23) is placed on the inner fold of the support basket (21). The liquid outlet (22) is fixed to the bottom of the support basket (21).

7. The coffee capsule extraction device according to claim 6, characterized in that: The end face of the pad (23) has several protrusions and several liquid holes; The mounting base (3) has an annular groove at its bottom, in which a third sealing ring (33) is provided, and the bottom of the third sealing ring (33) is in contact with the pad (23).

8. The coffee capsule extraction device according to claim 7, characterized in that: A guide tube (24) is fixedly installed on the inner side of the liquid outlet hopper (22), and the guide tube (24) is sleeved on the outer side of a plurality of liquid holes.

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