Puncture assembly, extraction structure comprising puncture assembly and coffee machine

Abstract

The utility model relates to the technical field of coffee machines, in particular to a puncture assembly, an extraction structure comprising the puncture assembly and a coffee machine, the puncture assembly comprises an upper cover, a mounting plate and a puncture needle located between the upper cover and the mounting plate, and the upper cover is provided with a plurality of holes for water circulation; a cavity is formed in the portion, below the hole, of the mounting plate, a first channel communicated with the cavity is formed in the cavity, the bottom of the puncturing needle is movably arranged in the first channel, the top of the puncturing needle penetrates through the upper cover to be exposed, a second channel used for water circulation is formed in the middle of the puncturing needle, and a side opening is formed in the side wall of the puncturing needle; and the side opening is used for communicating the cavity with the channel II. Due to the arrangement of the side opening, water on the mounting plate enters the second channel from the side opening and then can flow into the capsule, and the situation that the water stays on the mounting plate can be greatly reduced.

Description

Technical Field

[0001] This utility model relates to the field of coffee machine technology, and specifically to a puncturing component, an extraction structure including the puncturing component, and a coffee machine. Background Technology

[0002] A coffee machine is a device used to make coffee. It includes a cup body, which houses components such as a power supply and circuit board. One end of the cup body has a heating zone, and the other end has an extraction zone. The extraction zone includes a lid and a capsule holder, with a capsule housed within them. The inner wall of the lid connects to the outer wall of the capsule holder. A mounting plate connects the capsule and the lid, and a movable puncturing needle is mounted on the mounting plate. When the extraction zone is mounted on the cup body, the mounting bracket on the cup body applies force to the puncturing needle, causing it to move downwards and puncture the capsule. Simultaneously, when water is supplied above the puncturing needle, the water pressure also applies pressure to the puncturing needle, causing it to move further and puncture the capsule. Water then flows through channels in the puncturing needle into the capsule and out through the opening at the bottom of the capsule.

[0003] Meanwhile, as water flows from the mounting bracket to the puncture needle, it flows onto the surface of the top cover and through the holes in the top cover to the mounting plate. However, because there is only a small gap between the mounting plate and the puncture needle, it is difficult for the water to flow out through the gap. As a result, water may stagnate on the mounting plate, potentially leading to the growth of bacteria and other issues, thus causing hygiene problems and discomfort to the user. Summary of the Invention

[0004] The purpose of this invention is to provide a puncturing component and an extraction structure and coffee machine including the puncturing component. By setting the side opening, water located on the mounting plate can enter the second channel from the side opening and then flow into the capsule. This can greatly reduce the situation where water remains on the mounting plate, thus solving the problem that water remaining on the mounting plate may generate bacteria and affect hygiene.

[0005] The purpose of this utility model is achieved as follows:

[0006] A puncture assembly includes a top cover and a mounting plate, and a puncture needle located between the top cover and the mounting plate, wherein the top cover has a plurality of holes for water flow.

[0007] The mounting plate has a cavity below the hole, and a channel 1 is provided in the cavity. The bottom of the puncture needle is movable in the channel 1, and the top of the puncture needle passes through the top cover and protrudes. A channel 2 for water flow is provided in the middle of the puncture needle, and a side opening is provided on the side wall of the puncture needle, which is used to connect the cavity and the channel 2.

[0008] Preferably, the mounting plate is provided with a boss below the channel one, and the boss is provided with a through hole one in communication with the channel one, and a spring is arranged between the boss and the puncture needle, and the bottom of the puncture needle is located in the through hole one under the action of the spring.

[0009] Preferably, the puncture needle is provided with a limiting plate outside, and the spring is located between the bottom of the limiting plate and the boss, and the top of the limiting plate can abut against the upper cover to limit the movement range of the puncture needle.

[0010] Preferably, the channel one is formed by at least two flanges, and a gap is arranged between the adjacent two flanges.

[0011] Or / and, the upper cover is provided with a groove at the top, and the groove is provided with a through hole two at the bottom for the puncture needle to pass out, and the groove is provided with a hole outside the through hole two.

[0012] Preferably, a sealing ring one is arranged between the inner wall of the upper cover and the outer wall of the mounting plate.

[0013] Or / and, the upper cover is provided with a baffle inside, and the mounting plate is provided with a support plate, and the inner wall of the support plate is surrounded to form a cavity, and the support plate is located in the baffle and is provided with a sealing ring two between the upper cover.

[0014] An extraction structure comprising a puncture assembly, comprising a capsule seat, and any one of the above-mentioned puncture assemblies, wherein the capsule seat is formed with a bearing cavity for placing a capsule, and the bottom of the capsule seat is provided with a liquid outlet, the top of the capsule seat is located in the upper cover, and the mounting plate is located between the capsule seat and the upper cover, and the inner wall of the upper cover and the outer wall of the capsule seat are detachably connected.

[0015] Preferably, the inner wall of the upper cover and the outer wall of the capsule seat are connected by threads.

[0016] Alternatively, the inner wall of the upper cover is provided with a sliding groove, and the sliding groove is open on one side, and the sliding groove is provided with a clamping groove, the outer wall of the capsule seat is provided with a sliding block, and the sliding block enters the sliding groove from the opening and moves in the sliding groove, and the sliding block is provided with a protrusion corresponding to the clamping groove.

[0017] Preferably, a sealing ring three is arranged between the outer wall of the capsule and the inner wall of the capsule seat.

[0018] Or / and, the top of the capsule is provided with a connecting plate outside, and the inner wall of the upper cover is provided with a step, and the connecting plate is located between the step and the capsule seat, and the bottom of the mounting plate abuts against the connecting plate.

[0019] A coffee machine, comprising a cup body, and any one of the above-mentioned puncture assemblies, and the cup body is provided with a mounting frame at one end, and the upper cover is located in the mounting frame and is threadedly connected with the mounting frame, and the mounting frame is provided with a cup outside.

[0020] The mounting frame is provided with a third channel for water flow, and the mounting frame is provided with at least one overflow groove in communication with the third channel.

[0021] Preferably, the mounting frame is provided with a mounting hole, and the mounting frame is provided with a clamping groove outside the third channel, the mounting frame is provided with a sealing element on one side close to the upper cover, the sealing element is provided with a clamping block corresponding to the mounting hole, the sealing element is provided with a clamping part corresponding to the clamping groove, and the sealing element is provided with a third through hole corresponding to the third channel.

[0022] The sealing element is provided with a sealing surface at the bottom, and the sealing surface abuts against the upper cover and is located outside the hole to avoid water flowing outward.

[0023] Compared with the prior art, the utility model has the advantages of:

[0024] The water on the mounting plate enters the second channel from the side opening, and then flows into the capsule, so that the water retention on the mounting plate can be greatly reduced. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 The utility model discloses a structure schematic diagram.

[0026] Figure 2 The utility model discloses a structure schematic diagram of section one.

[0027] Figure 3 The utility model discloses a structure schematic diagram of section two.

[0028] Figure 4 The utility model discloses a structure schematic diagram of split.

[0029] Figure 5 The utility model discloses a structure schematic diagram of upper cover.

[0030] Figure 6 The utility model discloses a structure schematic diagram of puncture needle.

[0031] Figure 7 The utility model discloses a structure schematic diagram of sealing element and mounting frame.

[0032] Figure 8 The utility model discloses a structure schematic diagram of sealing element.

[0033] Reference Signs: 1-puncture needle;11-second channel;12-side opening;13-limiting plate;2-capsule;

[0034] 21-connection plate;3-upper cover;31-second through hole;32-groove;33-hole;34-sliding slot;341-clamping groove;

[0035] 35 - step; 36 - baffle; 4 - mounting plate; 41 - channel one; 42 - tab; 43 - boss;

[0036] 44 - through hole one; 45 - support plate; 5 - spring; 61 - sealing ring one; 62 - sealing ring two;

[0037] 63 - sealing ring three; 7 - capsule seat; 71 - sliding block; 711 - protrusion; 8 - mounting frame; 81 - channel three;

[0038] 82 - overflow groove; 83 - mounting hole; 84 - clamping groove; 9 - sealing element; 91 - clamping block; 92 - clamping portion. DETAILED DESCRIPTION

[0039] The specific embodiments of the utility model will be further described in detail below with reference to the accompanying drawings.

[0040] As Figures 1-8 shown, a kind of puncture assembly, it belongs to a part in extraction structure, and it is used in coffee machine, such as portable coffee machine, manual coffee machine, when it is loaded in coffee machine, the puncture needle 1 of puncture assembly is subjected to the force exerted by water and then moves down to puncture capsule.

[0041] Meanwhile this kind of puncture assembly specifically includes upper cover 3 and mounting plate 4 and the puncture needle 1 between upper cover 3 and mounting plate 4, and upper cover 3 is equipped with several holes 33 for water flow.

[0042] Secondly, mounting plate 4 is equipped with cavity below hole 33, and the cavity is provided with channel one 41 communicated with it, and the bottom of puncture needle 1 moves and is arranged in channel one 41, and the top of puncture needle 1 passes through upper cover 3 and exposes.And puncture needle 1 middle part is equipped with channel two 11 for water flow, and the side wall of puncture needle 1 is equipped with side port 12, and side port 12 is used to communicate cavity and channel two 11.

[0043] Thus in actual use process, when water flows to mounting plate 4, it can enter channel two 11 from side port 12, and then can flow into capsule 2, so it can greatly reduce the situation that water is retained on mounting plate 4.

[0044] Among them, the number of side port 12 can be selected according to actual situation, such as puncture needle 1 both sides are equipped with side port 12 communicated with channel two 11, and two side ports 12 are symmetrically arranged.

[0045] And in order to avoid a large amount of water to rush in, channel one 41 is designed to be formed by at least two tabs 42, and gap is arranged between adjacent two tabs 42. Thus in actual use process, by the setting of tab 42 and gap, shunt is realized

[0046] And the number of convex plate 42 can be selected according to actual situation, such as the mounting plate 4 is provided with four convex plate 42 outside the channel one 41.

[0047] At the same time in actual use, the mounting plate 4 is located in the upper cover 3 and is installed and fixed by screw, and the upper cover 3 is taken off from the capsule seat 7 so as to place the capsule in the capsule seat 7, so the position of the puncture needle 1 after recovery is important, if it is not fully recovered to the inside, it will be exposed and cause injury to the user.

[0048] Therefore, as shown in Figure 3 and Figure 5 , the mounting plate 4 is provided with a convex platform 43 below the channel one 41, and the convex platform 43 is provided with a through hole one 44 communicated with the channel one 41, and the spring 5 is arranged between the convex platform 43 and the puncture needle 1, and the bottom of the puncture needle 1 is located in the through hole one 44 under the action of the spring 5.

[0049] Thus in actual use, through the setting of the convex platform 43, the length of the channel one 41 can be increased, so as to avoid the situation that the puncture needle 1 is exposed after resetting through the mounting plate 4, thereby avoiding the puncture needle 1 causing injury to the user.

[0050] And in order to avoid the spring 5 from falling off the channel one 41, the caliber size of the through hole one 44 is designed to be smaller than the caliber size of the channel one 41.

[0051] At the same time, the puncture needle 1 is provided with a limiting plate 13 outside, and the spring 5 is located between the bottom of the limiting plate 13 and the convex platform 43, and the top of the limiting plate 13 can abut against the upper cover 3 to limit the movement range of the puncture needle 1.

[0052] Thus in actual use, the setting of the limiting plate 13 can realize one thing with multiple uses, that is, it can limit and press the spring 5, and also limit the movement range of the puncture needle 1.

[0053] As shown in Figure 4 , the related structure of the upper cover 3 is that: first, the upper cover 3 is provided with a recess 32 at the top, and the recess 32 is provided with a through hole two 31 at the bottom for the puncture needle 1 to pass out, and the recess 32 is provided with a hole 33 outside the through hole two 31.

[0054] Thus in actual use, through the setting of the recess 32, interference with other components can be avoided, and compared with a plane, the setting of the recess 32 can also limit the water to a certain extent, avoiding flowing to other directions.

[0055] As shown in Figure 3 and Figure 4 , the sealing structure is that: first, a sealing ring one 61 is arranged between the inner wall of the upper cover 3 and the outer wall of the mounting plate 4. Moreover, the upper cover 3 and the mounting plate 4 are connected by screws.

[0056] At the same time, the upper cover 3 is provided with a baffle 36, the mounting plate 4 is provided with a supporting plate 45, the inner wall of the supporting plate 45 is surrounded to form a cavity, and the supporting plate 45 is located in the baffle 36 and is provided with a second sealing ring 62 between the upper cover 3.

[0057] The utility model discloses still protect a kind of extraction structure containing puncture subassembly, it includes capsule seat 7, and the puncture subassembly described in any one of above, wherein capsule seat 7 is formed with the load cavity for placing capsule 2, and capsule seat 7 bottom is provided with liquid outlet, the top of the capsule seat 7 is located in upper cover 3, and mounting plate 4 is located between capsule seat 7 and upper cover 3, and the inner side wall of upper cover 3 and the outer side wall of capsule seat 7 are detachably connected.

[0058] The detachable connection structure is various, can be screwed, can also be rotated buckle, so specific structure can be: the inner side wall of upper cover 3 and the outer side wall of capsule seat 7 are connected by screw thread.

[0059] Or, the inner side wall of upper cover 3 is provided with a sliding groove 34, one side of the sliding groove 34 is provided with an opening, and the sliding groove 34 is provided with a clamping groove 341, and the outer wall of the capsule seat 7 is provided with a sliding block 71.

[0060] Thus in actual use, sliding block 71 enters into sliding groove 34 from opening and moves in sliding groove 34, and sliding block 71 is provided with protrusion 711 corresponding to clamping groove 341, which is limited to rotate by the matching of clamping groove 341 and protrusion 711, and when disassembling, a larger force is applied to remove the limit to separate upper cover 3 and capsule seat 7.

[0061] Secondly, the capsule 2 that can be placed in the capsule seat 7 is an aluminum capsule on the market, such as DG capsule, nestle capsule or starbucks capsule, and the internal structure of each capsule is also different, such as the nestle capsule is a closed structure as a whole, and coffee powder is contained in the inside, and the DG capsule is provided with a filter hole in the bottom compared with the nestle capsule. Therefore, according to the different capsules, the capsule seat 7 can select different structures.

[0062] And the bottom shell of the DG capsule is shown in the drawing, when the DG capsule is placed in the capsule seat 7, after the puncture needle 1 punctures the top of the capsule 2, the coffee liquid will flow out from the filter hole at the bottom, and flow out from the liquid outlet of the capsule seat 7.

[0063] At the same time, other structures are: first, the outer side wall of the capsule 2 and the inner side wall of the capsule seat 7 are provided with a third sealing ring 63. Moreover, the top of the capsule 2 is provided with a connecting plate 21, and the inner side wall of the upper cover 3 is provided with a step 35, and the connecting plate 21 is located between the step 35 and the capsule seat 7, and the bottom of the mounting plate 4 abuts against the connecting plate 21.

[0064] The utility model discloses still protect a kind of coffee machine comprising puncture subassembly, it includes cup body, and the puncture subassembly described in any of above, wherein cup body one end is provided with mounting bracket 8, and upper cover 3 is located in mounting bracket 8 and is connected with mounting bracket 8 threadedly, and mounting bracket 8 outside is provided with cup;

[0065] Meanwhile mounting bracket 8 is provided with channel three 81 for water flow, and mounting bracket 8 is provided with at least one overflow groove 82 communicated with channel three 81.

[0066] Thus in actual use process, the setting of overflow groove 82 thereby expands water outlet diameter, and then faster water outlet is adapted to multiple holes 33.

[0067] Need to be explained, the aperture of channel three 81 is less than the diameter of puncture needle 1, and channel three 81 will be communicated with overflow groove 82 and form a water outlet structure with "cross" shape, and the water outlet structure is different from the shape of puncture needle 1, so when the assembled extraction structure is installed on the mounting bracket 8 of coffee machine through upper cover 3, puncture needle 1 is pushed and pressed under the premise of being communicated with the water outlet structure, so that the sharp segment of puncture needle 1 is preliminarily punctured on the surface of capsule 2, so as to facilitate subsequent extraction. After extraction is completed, the extraction structure is removed from mounting bracket 8, and puncture needle 1 is automatically retracted after losing the pushing force, so as to be hidden in boss 43.

[0068] Therefore, in the application scenario of using capsule to extract coffee, for example, DG capsule, when the puncture subassembly is loaded in the coffee machine, the puncture needle 1 of the puncture subassembly will puncture the capsule 2 due to the preliminary downward movement of the mounting bracket 8 and the subsequent downward movement under the force of water, thereby realizing pressure extraction. It should be noted that since the DG capsule is a self-pressure maintaining capsule structure, the extraction of coffee liquid can be realized without using the capsule seat 7. Alternatively, a corresponding capsule seat 7 can be selected according to the type of capsule, for example, the capsule seat 7 can also use the cup body in the utility model with application number 2021221884101.

[0069] Secondly, mounting bracket 8 has sealing structure, but its sealing structure is multiple, such as mounting bracket 8 and upper cover 3 need to be provided with sealing element, and the mounting hole 83 of mounting bracket 8 also needs sealing element, so it is more time-consuming and laborious to install, and the sealing element in mounting hole 83 is also easy to fall off.

[0070] Therefore the mounting rack 8 is provided with a mounting hole 83, and the mounting hole 83 is used for assembling the mounting rack 8 on the cup body by screwing or ultrasonic welding, and the mounting rack 8 is provided with a clamping groove 84 on the side of the third channel 81, and the mounting rack 8 is provided with a sealing piece 9 on the side close to the upper cover 3, and the sealing piece 9 is provided with a clamping block 91 corresponding to the mounting hole 83, and the sealing piece 9 is provided with a clamping part 92 corresponding to the clamping groove 84, and the sealing piece 9 is provided with a third through hole corresponding to the third channel 81.

[0071] And the bottom of the sealing piece 9 is provided with a sealing surface, and the sealing surface abuts against the upper cover 3 and is located outside the hole 33 to avoid water flowing outward. Thus in actual use, the sealing and mounting of the mounting rack 8 and the upper cover 3 and the sealing of the mounting hole 83 are realized by one sealing piece 9, so that one piece is used for multiple purposes, and the installation is more convenient.

[0072] Secondly, the operation of the coffee machine also needs other components, but is not the focus of the utility model protection, that is, not to be described in detail. The basic principle and main features of the utility model and the advantages of the utility model are shown and described above. Meanwhile, the utility model is not limited by the above embodiments, so various changes and improvements of the utility model can be made without departing from the principle and scope of the utility model, and these changes and improvements all fall within the scope of the utility model.

Claims

1. A puncturing assembly, characterized by The puncture needle (1) is arranged between the upper cover (3) and the mounting plate (4), and the upper cover (3) is provided with a plurality of holes (33) for water flow. The mounting plate (4) is provided with a cavity below the hole (33), and the cavity is provided with a channel I (41) in communication with the cavity, and the bottom of the puncture needle (1) is movably arranged in the channel I (41), and the top of the puncture needle (1) is exposed through the upper cover (3), the middle of the puncture needle (1) is provided with a channel II (11) for water flow, and the side wall of the puncture needle (1) is provided with a side opening (12) for communication between the cavity and the channel II (11).

2. A puncturing assembly according to claim 1, wherein: The mounting plate (4) is provided with a boss (43) below the channel I (41), and the boss (43) is provided with a through hole I (44) in communication with the channel I (41), and a spring (5) is arranged between the boss (43) and the puncture needle (1), and the bottom of the puncture needle (1) is located in the through hole I (44) under the action of the spring (5).

3. A puncturing assembly according to claim 2, wherein: The outer side of the puncture needle (1) is provided with a limiting plate (13), and the spring (5) is located between the bottom of the limiting plate (13) and the boss (43), and the top of the limiting plate (13) abuts against the upper cover (3) to limit the movement range of the puncture needle (1).

4. A puncturing assembly according to any one of claims 1-3, characterized in that: The channel I (41) is formed by at least two flanges (42), and a gap is arranged between the adjacent two flanges (42). Or / and, the top of the upper cover (3) is provided with a groove (32), and the bottom of the groove (32) is provided with a through hole II (31) for the puncture needle (1) to pass out, and the groove (32) is provided with a hole (33) outside the through hole II (31).

5. A puncturing assembly according to any one of claims 1-3, characterized in that: A sealing ring I (61) is arranged between the inner side wall of the upper cover (3) and the outer side wall of the mounting plate (4); Or / and, the upper cover (3) is provided with a baffle (36), and the mounting plate (4) is provided with a support plate (45), and the inner wall of the support plate (45) forms a cavity, and the support plate (45) is located in the baffle (36) and is provided with a sealing ring II (62) between the upper cover (3).

6. An extraction structure comprising a puncture assembly, characterized by: The puncture assembly comprises a capsule seat (7), and the puncture assembly of any one of claims 1-5, wherein the capsule seat (7) is formed with a bearing cavity for placing a capsule (2), and the bottom of the capsule seat (7) is provided with a liquid outlet, the mounting plate (4) is located between the capsule seat (7) and the upper cover (3), and the upper cover (3) and the capsule seat (7) are detachably connected.

7. An extraction structure comprising a puncture assembly according to claim 6, wherein: The inner side wall of the upper cover (3) and the outer side wall of the capsule seat (7) are connected by threads; Alternatively, the inner side wall of the upper cover (3) is provided with a sliding groove (34), one side of the sliding groove (34) is open, and the sliding groove (34) is provided with a clamping groove (341) inside, the outer wall of the capsule seat (7) is provided with a sliding block (71), and the sliding block (71) enters the sliding groove (34) from the opening and moves in the sliding groove (34), and the sliding block (71) is provided with a protrusion (711) corresponding to the clamping groove (341).

8. An extraction structure comprising a puncture assembly according to claim 6, wherein: The outer side wall of the capsule (2) and the inner side wall of the capsule seat (7) are provided with a sealing ring III (63). Or / and, the capsule (2) top outside is provided with a connecting plate (21), and the inner wall of the upper cover (3) is provided with a step (35), and the connecting plate (21) is located between the step (35) and the capsule seat (7), and the mounting plate (4) bottom is in abutment with the connecting plate (21).

9. A coffee maker characterized in that: Including cup body, and the puncture assembly described in any one of claims 1-5, one end of the cup body is provided with a mounting bracket (8), and the upper cover (3) is located in the mounting bracket (8) and is in threaded connection with the mounting bracket (8), and the outside of the mounting bracket (8) is provided with a cup; The mounting bracket (8) is provided with a third water flow passage (81), and the mounting bracket (8) is provided with at least one overflow groove (82) in communication with the third water flow passage (81).

10. A coffee maker according to claim 9, characterized in that: The mounting bracket (8) is provided with a mounting hole (83), and the mounting bracket (8) is provided with a clamping groove (84) outside the third water flow passage (81), the mounting bracket (8) is provided with a sealing element (9) on one side close to the upper cover (3), the sealing element (9) is provided with a clamping block (91) corresponding to the mounting hole (83), and the sealing element (9) is provided with a clamping part (92) corresponding to the clamping groove (84), and the sealing element (9) is provided with a through hole three corresponding to the third water flow passage (81). The bottom of the sealing element (9) is provided with a sealing surface, and the sealing surface is in abutment with the upper cover (3) and is located outside the hole (33) to avoid water flowing outward.

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