Extraction structure and coffee machine comprising same

Abstract

The utility model relates to the technical field of coffee machines, in particular to an extraction structure and a coffee machine comprising the extraction structure, the extraction structure comprises an extraction bin, an upper cover and a connecting piece, the upper cover comprises a main body and a turnup located on the outer side of the top of the main body, the bottom of the main body is located in the extraction bin, and the bottom of the extraction bin is located in the connecting piece; the top of the extraction bin is bent outwards to form a connecting part, and the connecting part is located between the bottom of the turned edge and the top of the connecting piece. An elastic piece is arranged between the outer side wall of the extraction bin and the connecting piece, at least one protruding part is arranged on the inner wall of the elastic piece, and the protruding part is matched with the outer side of the main body to abut against the extraction bin. Therefore, the connecting part is located between the bottom of the turned edge and the top of the connecting piece, the protruding part is matched with the outer side of the main body to extrude the side wall of the extraction bin, then the extraction bin is prevented from loosening, and the outer side of the main body is attached to the side wall of the extraction bin, so that sealing performance is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to coffee machine technical field, especially point to a kind of extraction structure and the coffee machine comprising extraction structure. BACKGROUND

[0002] Coffee machine is a kind of equipment for making coffee, it includes cup body, and cup body is built-in power supply and circuit board and other components, while cup body one end is provided with heating area, and cup body other end is provided with extraction area.Wherein extraction area includes extraction bin, upper cover and outer cup, and extraction bin is connected with upper cover and located in outer cup, while extraction bin is connected with upper cover, specifically, extraction bin top is located in upper cover and sealing ring is arranged between the two to realize installation and sealing, such as the utility model with application No.2021221884101, it is such structure. However, if it is only relied on single sealing ring to realize installation and sealing, its stability is not high, there can be loose condition. SUMMARY

[0003] The utility model aims at providing a kind of extraction structure and the coffee machine comprising extraction structure, by connecting portion between the bottom of flanging and the top of connecting piece, and the cooperation of protruding portion and the outside of main body to extrude the side wall of extraction bin, to avoid extraction bin loose, so solve the problem of existing installation structure that extraction bin is loose.

[0004] The utility model is realized as follows:

[0005] A kind of extraction structure, including extraction bin, upper cover and connecting piece, and upper cover includes main body and the flanging located at the top of main body outside, and the bottom of main body is located in extraction bin, and the bottom of extraction bin is located in connecting piece;

[0006] The top of extraction bin is outwardly bent and formed with connecting portion, and connecting portion is located between the bottom of flanging and the top of connecting piece;

[0007] Elastic member is arranged between the outer side wall of extraction bin and connecting piece, and at least one protruding portion is arranged on the inner wall of elastic member, and the protruding portion cooperates with the outside of main body to abut against extraction bin.

[0008] Preferably, three protruding portions are arranged on the inner wall of elastic member, and opening is formed in elastic member;

[0009] Or / and, mounting groove is formed in the inner wall of connecting piece to place elastic member.

[0010] Preferably, sealing ring is arranged between the inner side wall of extraction bin and upper cover, and the protruding portion and sealing ring are located on both sides of the side wall of extraction bin, and the protruding portion and sealing ring are adapted to abut against extraction bin.

[0011] Preferably, the extraction bin is a powder bowl with a plurality of liquid outlet holes distributed on the bottom.

[0012] Preferably, the extraction bin comprises a bin body and a receiving plate arranged in the bin body, the receiving plate is used for placing coffee powder and is provided with a plurality of holes for water to pass through, and the bin body is provided with a liquid outlet on the bottom.

[0013] The outer wall of the receiving plate and the inner wall of the bin body are welded.

[0014] Preferably, the extraction bin comprises a bin body and a receiving plate arranged in the bin body, the receiving plate is used for placing coffee powder and is provided with a plurality of holes for water to pass through, and the bin body is provided with a liquid outlet on the bottom.

[0015] A soft rubber ring is arranged between the receiving plate and the bin body, the soft rubber ring is provided with a connecting groove for placing the bottom of the receiving plate, a limiting plate is arranged on the outer side of the top of the receiving plate, and the bottom of the limiting plate abuts against the top of the soft rubber ring.

[0016] Alternatively, a soft rubber ring is arranged between the receiving plate and the bin body, the soft rubber ring is provided with a connecting groove for placing the bottom of the receiving plate, a protrusion is arranged on the top of the soft rubber ring, a limiting plate is arranged on the outer side of the top of the receiving plate, and the limiting plate is bent to form a clamping groove corresponding to the protrusion.

[0017] Preferably, the upper cover is provided with a recess, the recess is provided with a water inlet hole on the bottom, the upper cover is provided with a water inlet mesh on the upper side of the water inlet hole, and the upper surface of the water inlet mesh is on the same plane as the bottom surface of the recess.

[0018] Or / and, the upper cover is provided with a water outlet mesh on the lower side of the water inlet hole, the bottom of the upper cover is provided with a clamping block, and the water outlet mesh is provided with a clamping hole corresponding to the clamping block.

[0019] Preferably, the bottom of the turned edge is provided with an abutting block, the connecting part is located between the abutting block and the top of the connecting piece, and the connecting part and the turned edge have a gap therebetween.

[0020] Alternatively, the connecting part is extruded to form a protrusion, the protrusion is located between the turned edge and the top of the connecting piece, and the connecting part and the turned edge have a gap therebetween.

[0021] A coffee machine comprising an extraction structure, comprising a cup body and an extraction bin, an upper cover and a connecting piece as shown in any one of the above, one end of the cup body is provided with a mounting frame, and the connecting piece and the mounting frame are detachably connected.

[0022] Compared with the prior art, the utility model has the advantages of:

[0023] The utility model discloses a connecting part is located between the bottom of turn -up and the top of connecting piece, and the cooperation of the protruding portion and the main body outside extrudes the side wall of the extraction bin, thereby avoiding the loosening of the extraction bin, and the main body outside and the side wall of the extraction bin are combined to have the sealing property. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is the structure schematic drawing of the utility model.

[0025] Figure 2 It is the sectional view schematic drawing of having big bin.

[0026] Figure 3 It is the sectional view schematic drawing of having small bin.

[0027] Figure 4 It is the sectional view schematic drawing of not having sealing ring.

[0028] Figure 5 It is the structure schematic drawing of the utility model split.

[0029] Figure 6 It is the structure schematic drawing of the top of upper cover.

[0030] Figure 7 It is the structure schematic drawing of the bottom of upper cover.

[0031] Figure 8 It is the structure schematic drawing of soft glue ring.

[0032] Figure 9 It is the structure schematic drawing of the bin body of the bottom distribution of several liquid outlet holes.

[0033] Figure 10 It is the structure schematic drawing of the upper cover of having abutting block.

[0034] Figure 11 It is the structure schematic drawing of the welding between bin body and bearing plate.

[0035] Figure 12 It is the sectional view schematic drawing of Figure 11 .

[0036] Figure 13 It is the structure schematic drawing of the soft glue ring between bin body and bearing plate.

[0037] Figure 14 It is the sectional view schematic drawing of Figure 13 .

[0038] Drawing reference: 1-extraction bin;11-connecting part;12-liquid outlet;13-big bin;14-small bin;

[0039] 15-boss;16-bin body;2-upper cover;21-turn -up;22-groove;23-water inlet hole;24-clamping block;

[0040] 25 - assembly groove; 251 - protrusion one; 26 - abutting block; 27 - support column; 3 - connecting piece; 31 - mounting groove;

[0041] 4 - sealing ring; 5 - elastic member; 51 - protrusion; 52 - opening; 6 - receiving plate; 61 - placing groove;

[0042] 62 - limiting plate; 621 - clamping groove; 7 - soft rubber ring; 71 - connecting groove; 72 - protrusion two; 8 - water inlet net; 81 - clamping groove; 9 - water outlet net; 91 - clamping hole; 10 - connecting column. DETAILED DESCRIPTION

[0043] The specific embodiments of the utility model will be further described in detail below with reference to the accompanying drawings.

[0044] As Figures 1-8 shown, an extraction structure for a coffee machine, such as a portable coffee machine, a manual coffee machine, when loaded in the coffee machine, the extraction structure as a carrier to carry coffee powder, cooperates with the coffee machine main machine and realizes the extraction of coffee powder under a certain pressure, so as to obtain coffee liquid.

[0045] At the same time, the extraction structure specifically includes an extraction bin 1, an upper cover 2 and a connecting piece 3, and the three cooperate to realize the carrying of coffee powder, and the upper cover 2 includes a main body and a flange 21 located on the top outside of the main body, and the bottom of the main body is located in the extraction bin 1, and the bottom of the extraction bin 1 is located in the connecting piece 3.

[0046] Among them, the connecting piece 3 is placed by the form of hole or slot, such as the connecting piece 3 can be provided as a structure with both ends open, so as to facilitate the falling of coffee liquid; Or it can be a structure with one end open so as to be used to play the role of liquid receiving; It can also be an outer bin in the existing portable coffee machine, such as the cup body in the utility model with application number 2021221884101.

[0047] And the top of the extraction bin 1 is outwardly bent to form a connecting part 11, and the connecting part 11 is located between the bottom of the flange 21 and the top of the connecting piece 3.

[0048] Secondly, as Figures 2-5 shown, an elastic member 5 is arranged between the outer wall of the extraction bin 1 and the connecting piece 3, and the inner wall of the elastic member 5 is provided with at least one protrusion 51, and the protrusion 51 cooperates with the outer side of the main body to abut the extraction bin 1, that is, the protrusion 51 extrudes the side wall of the extraction bin 1 through the outer side of the main body, so as to avoid the loosening of the extraction bin 1.

[0049] Thus in actual use, by locating the connecting portion 11 between the bottom of the flange 21 and the top of the connecting piece 3, and combining the protruding portion 51 with the outer side of the main body, the side wall of the extraction chamber 1 is extruded, thereby avoiding loosening of the extraction chamber 1. Moreover, the outer side of the main body is attached to the side wall of the extraction chamber 1, thereby having a sealing property.

[0050] The number of protruding portions 51 can be selected according to actual conditions, for example, three protruding portions 51 are arranged on the inner wall of the elastic member 5, and the elastic member 5 is provided with an opening 52. Moreover, the side of the upper cover 2 that is in contact with the inner side wall of the extraction chamber 1 is aligned with the edge, or can be slightly convex, as long as it is attached to the inner side wall of the extraction chamber 1.

[0051] Meanwhile, the mounting structure of the elastic member 5 is that the inner wall of the connecting piece 3 is provided with a mounting groove 31 for placing the elastic member 5. Moreover, a seal is arranged between the extraction chamber 1 and the upper cover 2, and the sealing position is not limited, but if the stability effect of the extraction chamber 1 is better, a sealing ring 4 can be arranged between the inner side wall of the extraction chamber 1 and the upper cover 2, and the protruding portion 51 and the sealing ring 4 are located on both sides of the side wall of the extraction chamber 1, and the protruding portion 51 and the sealing ring 4 are adapted to abut against the extraction chamber 1.

[0052] Secondly, the extraction chamber 1 can be made of metal, thereby reducing the contact of coffee liquid with plastic, and secondly, the volume specification of the extraction chamber 1 can be different, as shown in Figure 2 and Figure 3 The extraction chamber 1 is respectively a large chamber 13 and a small chamber 14, and the height of the large chamber 13 is higher than the height of the small chamber 14, thereby being applicable to coffee powder of different weights. For example, the small chamber 14 is applicable to 8-12g powder, and the large chamber 13 is applicable to 16g powder.

[0053] Meanwhile, the specific structure of the extraction chamber 1 can be various, as shown in Figure 9 The extraction chamber 1 is a powder bowl with a plurality of liquid outlet holes arranged at the bottom, or can be arranged in a split manner, that is, including a chamber body 16 and a receiving plate 6, and the split structure is adopted to ensure the stability of the extraction pressure on the basis of bearing coffee powder, that is, the receiving plate 6 passes through the hole to allow liquid to flow out and relieve pressure.

[0054] As shown in Figure 9 When the extraction chamber 1 adopts the powder bowl, the diameter of the liquid outlet hole at the bottom of the powder bowl is about 0.3mm, at this time, the coffee liquid can also be extracted in a gradual pressure relief manner, but this manner is more suitable for experienced operators.

[0055] As shown in Figures 11-12 When the extraction chamber 1 adopts the split structure, that is, the extraction chamber 1 includes the chamber body 16 and the receiving plate 6 arranged in the chamber body 16, and the receiving plate 6 is used to place coffee powder and is provided with a plurality of holes for water to pass through, and the chamber body 16 is provided with a liquid outlet 12 at the bottom.

[0056] The receiving plate 6 has a placement slot 61 for placing coffee powder, and the diameter of the holes and the liquid outlet 12 is about 0.3mm. Within this diameter range, when hot water with water pressure enters the extraction chamber 1 from the top cover 2, the hot water will pressurize the coffee powder to achieve pressure extraction. The pressure is relatively stable during this period, so it is more suitable for beginners.

[0057] Furthermore, the connection structure between the receiving plate 6 and the silo body 16 is such that the outer wall of the receiving plate 6 and the inner wall of the silo body 16 are welded together.

[0058] like Figures 1-7 As shown, in order to better cooperate with the water system of the coffee machine to achieve extraction, a water inlet hole 23 is provided on the upper cover 2, and a water outlet screen 9 is provided at the bottom of the upper cover 2 below the water inlet hole 23. The pore diameter of the water outlet screen 9 is about 0.3mm, so it can separate multiple water channels and prevent coffee powder and coffee liquid from splashing during the extraction process. At the same time, the installation structure of the water outlet screen 9 is versatile. It can be placed directly in a groove and fastened with screws, or it can be snapped in by a clip 24 and then fastened with screws.

[0059] Meanwhile, the structure related to the card block 24 is as follows: First, the bottom of the upper cover 2 is provided with a card block 24, and the water outlet net 9 is provided with a card hole 91 corresponding to the card block 24.

[0060] The connection between the card block 24 and the top cover 2 is a secondary molding process, and there are multiple card blocks 24. The secondary molding process refers to the technology of obtaining the final shape of the product by re-molding the profile obtained by one-time molding of polymer materials, such as plates, sheets, rods, and tubes, under certain conditions.

[0061] Therefore, in actual use, when the water outlet screen 9 is installed on the upper cover 2, the water outlet screen 9 is made to fit with the bottom surface of the upper cover 2 by inserting the clip 24 into the clip hole 91. At the same time, in order to make the installation of the water outlet screen 9 more stable, screws are set to tighten it. Moreover, the bottom of the upper cover 2 is provided with a support column 27, which supports the water outlet screen 9. The bottom of the upper cover 2 is flat and flush with the edge, so as to fit better with the water outlet screen 9.

[0062] like Figures 2-3 and Figure 10 As shown, in order to facilitate the separation of the extraction chamber 1 and the top cover 2, a gap is provided between the extraction chamber 1 and the top cover 2, so that it is easy for a finger or fingernail to enter.

[0063] The formation of its gaps, such as Figure 10 As shown, a gap can be created between the connecting part 11 and the flange 21 by providing an abutment block 26 at the bottom of the flange 21 and the connecting part 11 being located between the abutment block 26 and the top of the connector 3.

[0064] Alternatively, as shown in Figure 2 and Figure 3 shown, the formation of the gap can be by bending the connecting portion 11 to form a protrusion 15, and the protrusion 15 is located between the flange 21 and the top of the connecting piece 3, so that the connecting portion 11 and the flange 21 have a gap.

[0065] The utility model also protects a kind of coffee machine containing extraction structure, it includes cup body and the extraction bin 1 as shown in any of the above, upper cover 2 and connecting piece 3, and cup body one end is provided with mounting bracket, and connecting piece 3 and mounting bracket are detachably connected, specifically connecting piece 3 is located in mounting bracket and is threadedly connected with mounting bracket.

[0066] Of course, the operation of coffee machine also needs other components, but not the emphasis of the utility model protection, i.e.

[0067] As shown in Figures 13-14 , the mounting structure of the receiving plate 6 can be optimized, i.e.

[0068] Therefore, in actual use, through the setting of soft rubber ring 7, the connection of receiving plate 6 is not welded, so it can be disassembled, and it is convenient to clean.

[0069] Moreover, in order to facilitate the removal of receiving plate 6 and soft rubber ring 7, a hole can be opened in limiting plate 62.

[0070] As shown in Figures 1-8 , the structure of soft rubber ring 7 can be optimized, i.e.

[0071] Therefore, in actual use, through the matching of clamping groove 621 and protrusion two 72, the connection between receiving plate 6 and soft rubber ring 7 is more stable, and limiting plate 62 is bent to form clamping groove 621 corresponding to protrusion two 72.

[0072] As shown in Figures 2-3The structure related to the waterway system can be optimized, that is, with the water inlet net 8. The specific structure is that: first, the upper cover 2 is provided with a groove 22, and the bottom of the groove 22 is provided with a water inlet hole 23, and the upper cover 2 is provided with a water inlet net 8 above the water inlet hole 23, or is provided with a water inlet net 8 and a water outlet net 9 on the upper and lower sides of the water inlet hole 23 respectively, and the upper surface of the water inlet net 8 is in the same plane as the bottom surface of the groove 22.

[0073] Therefore, in actual use, the groove 22 is arranged to avoid interference with other components, and compared with a plane, the groove 22 can also limit the water to a certain extent, avoid flowing to other directions, and the upper surface of the water inlet net 8 is in the same plane as the bottom surface of the groove 22, so as to ensure smooth surface and facilitate water flow. At this time, if the upper cover 2 is provided with the water inlet net 8 alone, the water inlet net 8 plays a role in water inlet and water separation. If the upper cover 2 is provided with the water inlet net 8 and the water outlet net 9 at the same time, both of them can play a role in water separation, thereby being beneficial to stable extraction pressure.

[0074] The water inlet net 8 is made of metal, and the diameter of the holes on the water inlet net 8 is about 0.3 mm. When the upper cover 2 is provided with the water inlet net 8 and the water outlet net 9 at the same time, the diameters of the holes of the water inlet net 8 and the water outlet net 9 are consistent, so that on the basis of not hindering the circulation of hot water, the internal pressure of the extraction chamber 1 can be prevented from being released too fast to a certain extent, and the metal water inlet net 8 is convenient to wash.

[0075] The upper cover 2 and the water outlet net 9 are connected by a clamping block 24, and the structure between the upper cover 2 and the water inlet net 8 is that: first, the groove 22 is provided with an assembly groove 25, and the inner wall of the assembly groove 25 is provided with a protruding block 251. Therefore, in actual use, the water inlet net 8 is located in the assembly groove 25, and a clamping groove 81 is arranged corresponding to the protruding block 251.

[0076] In order to make the installation more stable, a connecting column 10 is arranged, and the connecting column 10 penetrates through the water inlet net 8, the upper cover 2 and the water outlet net 9, so as to arrange the water inlet net 8 and the water outlet net 9 on the upper cover 2. The connecting column 10 can be two components, such as a bolt and a nut, or a rivet structure.

[0077] The above shows and describes the basic principle and main features of the present application and the advantages of the present application. Meanwhile, the present application is not limited by the above embodiments, so that various changes and improvements can be made without departing from the principle and scope of the present application, and these changes and improvements all fall within the scope of the present application.

Claims

1. An extraction structure, characterized by, The utility model provides an extraction bin (1), upper cover (2) and connecting piece (3) are included, and upper cover (2) includes main body and the flanging (21) of main body top outside, and main body bottom is located in extraction bin (1) inside, and extraction bin (1) bottom is located in connecting piece (3) inside; The top of the extraction bin (1) is outwardly bent to form a connecting portion (11), and the connecting portion (11) is located between the bottom of the flanging (21) and the top of the connecting piece (3); An elastic member (5) is arranged between the outer wall of the extraction bin (1) and the connecting piece (3), and at least one protrusion (51) is arranged on the inner wall of the elastic member (5), and the protrusion (51) is matched with the outer side of the main body to abut against the extraction bin (1).

2. An extraction structure according to claim 1, wherein: Three protrusions (51) are arranged on the inner wall of the elastic member (5), and the elastic member (5) is provided with an opening (52); Or / and, the inner wall of the connecting piece (3) is provided with a mounting groove (31) for placing the elastic member (5).

3. An extraction structure according to claim 1, wherein: A sealing ring (4) is arranged between the inner wall of the extraction bin (1) and the upper cover (2), and the protrusions (51) and the sealing ring (4) are located on both sides of the side wall of the extraction bin (1), and the protrusions (51) and the sealing ring (4) are matched to abut against the extraction bin (1).

4. An extraction structure according to any one of claims 1 to 3, wherein: The extraction bin (1) is a powder bowl with a plurality of liquid outlet holes distributed on the bottom.

5. An extraction structure according to any one of claims 1 to 3, wherein: The extraction bin (1) includes a bin body (16) and a receiving plate (6) arranged in the bin body (16), the receiving plate (6) is used for placing coffee powder and is provided with a plurality of holes for water to pass through, and the bottom of the bin body (16) is provided with a liquid outlet (12). The outer side wall of the receiving plate (6) and the inner side wall of the bin body (16) are welded.

6. An extraction structure according to any one of claims 1 to 3, wherein: The extraction bin (1) includes a bin body (16) and a receiving plate (6) arranged in the bin body (16), the receiving plate (6) is used for placing coffee powder and is provided with a plurality of holes for water to pass through, and the bottom of the bin body (16) is provided with a liquid outlet (12). A soft rubber ring (7) is arranged between the receiving plate (6) and the bin body (16), the soft rubber ring (7) is provided with a connecting groove (71) for placing the bottom of the receiving plate (6), and the top outer side of the receiving plate (6) is provided with a limiting plate (62), and the bottom of the limiting plate (62) abuts against the top of the soft rubber ring (7). Alternatively, a soft rubber ring (7) is arranged between the receiving plate (6) and the bin body (16), the soft rubber ring (7) is provided with a connecting groove (71) for placing the bottom of the receiving plate (6), and the top of the soft rubber ring (7) is provided with a second protrusion (72), the top outer side of the receiving plate (6) is provided with a limiting plate (62), and the limiting plate (62) is provided with a clamping groove (621) corresponding to the second protrusion (72).

7. An extraction structure according to any one of claims 1 to 3, wherein: The upper cover (2) is provided with a groove (22), the bottom of the groove (22) is provided with a water inlet hole (23), and the upper cover (2) is provided with a water inlet mesh (8) above the water inlet hole (23), and the upper surface of the water inlet mesh (8) is in the same plane as the bottom surface of the groove (22). Or / and, the upper cover (2) is provided with a water outlet net (9) below the water inlet hole (23), and the bottom of the upper cover (2) is provided with a clamping block (24), and the water outlet net (9) is provided with a clamping hole (91) corresponding to the clamping block (24).

8. An extraction structure according to any one of claims 1 to 3, wherein: The bottom of the flange (21) is provided with an abutting block, the connecting part (11) is located between the abutting block and the top of the connecting piece (3), and a gap is formed between the connecting part (11) and the flange (21). Alternatively, the connecting part (11) is bent to form a protrusion (15), and the protrusion (15) is located between the flange (21) and the top of the connecting piece (3), and a gap is formed between the connecting part (11) and the flange (21).

9. A coffee maker comprising an extraction structure, characterized in that: The cup includes a cup body, an extraction cartridge (1), an upper cover (2) and a connecting piece (3) as shown in any one of claims 1-8, one end of the cup body is provided with a mounting rack, and the connecting piece (3) is detachably connected with the mounting rack.

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