Funnel assembly for coffee machine

Abstract

The utility model discloses a funnel assembly for a coffee machine. The funnel assembly is characterized by comprising a funnel body (1), the sealing ring (2) is arranged in the funnel body (1), the periphery of the sealing ring (2) is in sealing fit with the inner wall of the funnel body (1), and an annular clamping groove (21) is formed in the inner peripheral wall in the circumferential direction; the first filter disc (3) is provided with a plurality of filter holes (31) arranged at intervals; the second filter disc (4) is provided with a distribution hole (41); the funnel assembly at least has two states: in the first state, the first filter disc (3) is stacked above the second filter disc (4), and the peripheral edges of the first filter disc (3) and the second filter disc (4) are clamped in the annular clamping groove (21); and in the second state, only the peripheral edge of the first filter disc (3) is clamped in the annular clamping groove (21). Compared with the prior art, the funnel assembly is convenient to assemble, low in cost and high in universality.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of beverage extraction, in particular to a funnel assembly for coffee machine. BACKGROUND

[0002] The metal funnel used in the traditional coffee machine on the market is matched with a filter to extract coffee, and the coffee is gathered at the bottom of the funnel after extraction and then flows to the coffee cup through the coffee nozzle.

[0003] The existing filter is mainly composed of two types: the first type is composed of a porous filter cup alone, which can realize regular coffee extraction, and can be specifically referred to as the Chinese patent "Funnel assembly for coffee machine" with the patent application number CN202320181413.9; the second type is composed of a porous filter cup and a single-hole filter cup, which can realize double-layer filtration and pressurized extraction by containing the porous filter cup inside the single-hole filter cup, and can be specifically referred to as the Chinese patent "Filter assembly for coffee machine" with the patent application number CN201920019218.X and the Chinese patent "Filter for filter holder cup of coffee machine" with the patent application number CN202010705018.7.

[0004] However, the porous filter cup of the above-mentioned second type of filter can only be assembled with the single-hole filter cup for use, and cannot be used alone as the first type of filter. If the porous filter cup is used alone, another porous filter cup matched with the funnel needs to be provided, which has poor versatility. INVENTION CONTENTS

[0005] The utility model solves the technical problem that the existing technology provides a funnel assembly for coffee machine which is convenient to assemble, low in cost and high in versatility.

[0006] The utility model adopts the technical scheme that a funnel assembly for coffee machine, characterized by comprising

[0007] The funnel body is hollow inside and has an open top;

[0008] The sealing ring is arranged in the funnel body and is in sealing cooperation with the inner wall of the funnel body. An annular clamping groove is formed on the inner circumferential wall in the circumferential direction.

[0009] The first filter sheet has a plurality of spaced filter holes, and the peripheral edge can be clamped in the annular clamping groove.

[0010] The second filter sheet has one distribution hole, and the peripheral edge can be clamped in the annular clamping groove.

[0011] The funnel assembly has at least two states:

[0012] In the first state, the first filter is stacked above the second filter, and the peripheral edges of both are clamped in the annular clamping groove;

[0013] In the second state, only the peripheral edge of the first filter is clamped in the annular clamping groove.

[0014] It is emphasized that in the second state, the first filter is used alone, and the second filter is not assembled as a component on the sealing ring.

[0015] In order to avoid the influence of the adhesion of the two filters on the liquid outflow, the upper surface of the second filter has an upper convex bump.

[0016] In order to ensure the uniformity and stability of the gap between the two filters, the number of the convex bumps is at least two, and they are arranged in a circumferential interval on the outer periphery of the distribution hole.

[0017] In order to facilitate the taking and placing of the sealing ring, and at the same time facilitate the deformation of the annular clamping groove for the assembly and disassembly of the filter, the inside of the sealing ring at a position above the annular clamping groove has a holding part for the user to hold. The first is to facilitate the user to take and place the sealing ring 2, and the second is to enable

[0018] In order to avoid excessive deformation of the filter causing the peripheral edge to be separated from the sealing ring, a support part for supporting the first filter or the second filter is arranged in the inner cavity of the funnel body.

[0019] In order to support the filter comprehensively, the middle position of the bottom of the funnel body has a liquid outlet nozzle, and the support part comprises

[0020] a liquid receiving member connected at the inlet of the liquid outlet nozzle; and

[0021] an annular protrusion protruding on the bottom wall of the inner cavity of the funnel body and surrounding the outer periphery of the liquid receiving member.

[0022] In order to match the slightly deformed shallow disc-shaped filter, the top surface of the liquid receiving member is lower than the top surface of the annular protrusion.

[0023] In order to facilitate the positioning of the sealing ring in the funnel body, an annular groove is formed between the annular protrusion and the peripheral wall and bottom wall of the inner cavity of the funnel body, and the bottom of the sealing ring is inserted in the annular groove.

[0024] In order to realize gas-liquid separation and avoid the mixing of coffee liquid and air bubbles from the liquid outlet nozzle affecting the taste, the liquid receiving member comprises an outer cylinder connected at the inlet edge of the liquid outlet nozzle, an inner cylinder arranged in the outer cylinder, and a connecting plate connected between the outer cylinder and the inner cylinder. The number of the connecting plates is at least two, and they are arranged in a circumferential interval to separate the space between the outer cylinder and the inner cylinder into at least one liquid outlet channel and at least one steam outlet channel.

[0025] The bottom end of the inner cylinder has an end wall, so that the inner part of the inner cylinder is formed with a liquid receiving groove with an upward opening, and the side part of the inner cylinder has a notch communicating the liquid receiving groove and the liquid outlet channel;

[0026] In the first state, the opening at the top of the liquid receiving groove is directly opposite the dispensing hole.

[0027] In order to provide a buffer space for coffee liquid that cannot be discharged in time in the liquid outlet channel, and to better separate the coffee liquid, a buffer cavity is formed between the outer cylinder, the annular protrusion and the bottom wall of the inner cavity of the funnel body, and the outer cylinder has an opening at a position corresponding to the liquid outlet channel, so that the liquid outlet channel and the buffer cavity are in communication.

[0028] Compared with the prior art, the funnel assembly of the utility model has the advantages that: first, when assembling, only the filter sheet periphery edge needs to be clamped into the annular clamping groove of the sealing ring, which is convenient for assembly, production and cleaning, has low cost and high reliability; second, the first filter screen and the second filter screen can be used together (which is suitable for application scenarios with high extraction pressure requirements), or the first filter screen can be used alone (which is suitable for application scenarios with low extraction pressure requirements), which is convenient for users to freely switch and has strong versatility. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 FIG. 1 is a perspective structural schematic view of a funnel assembly for a coffee machine in a first state according to an embodiment of the utility model;

[0030] Figure 2 FIG. 2 is an exploded schematic view of the funnel assembly for the coffee machine in the first state according to the embodiment of the utility model; Figure 1

[0031] FIG. 3 is a perspective structural schematic view of a funnel body in the funnel assembly for the coffee machine according to the embodiment of the utility model; Figure 3 Figure 1 FIG. 4 is a bottom view of the funnel body in the funnel assembly for the coffee machine according to the embodiment of the utility model;

[0032] Figure 4 Figure 1 FIG. 5 is a longitudinal sectional view of the funnel body in the funnel assembly for the coffee machine according to the embodiment of the utility model;

[0033] Figure 5 FIG. 6 is a longitudinal sectional view of the funnel assembly for the coffee machine in a second state according to the embodiment of the utility model. Figure 1

[0034] Figure 6 DETAILED DESCRIPTION

[0035] The utility model will be further described in detail below in combination with the embodiment of the drawings.

[0036] ​​​​In the description and claims of the present application, terms are used to describe various example structures, parts and elements of the present application. Such terms are used only to facilitate describing the example embodiments of the present application and are not intended to limit the present application. For example, the terms "front," "back," "top," "bottom," "over," "under," "side," "underneath," "above," "below," and the like as may be used herein refer only to example orientations with respect to the example examples as shown in the figures and are not intended to limit the position, location or orientation of the example embodiments of the present application. The terms "first," "second," "third," etc., as may be used herein and in the following claims, are used to identify various example elements instead of limit the example embodiments of the present application to these example elements.

[0037] As shown in the drawings, the present application is a funnel assembly for a coffee machine. The funnel assembly comprises a funnel body 1, a sealing ring 2, a first filter 3 and a second filter 4. Figures 1 to 6

[0038] Specifically, the inner part of the liquid outlet nozzle 11 has three circumferentially spaced partitions 111, each partition 111 is vertically arranged, the inner edges of each partition 111 are connected, and the outer edges of each partition 111 are connected with the circumferential wall of the liquid outlet nozzle 11, so as to divide the inner cavity of the liquid outlet nozzle 11 into one liquid discharge channel 112 and two steam discharge channels 113.

[0039]

[0040] ​​The liquid receiving member 12 comprises an outer cylinder 121 connected to the inlet edge of the liquid outlet nozzle 11, an inner cylinder 122 arranged in the outer cylinder 121, and connecting plates 123 connected between the outer cylinder 121 and the inner cylinder 122. The connecting plates 123 are three in number and are arranged in a circumferential direction to divide the space between the outer cylinder 121 and the inner cylinder 122 into one liquid outlet channel 1211 and two steam outlet channels 1212. The outlet at the bottom of the liquid outlet channel 1211 is connected to the inlet at the top of the liquid discharge channel 112, and the outlet at the bottom of the steam outlet channel 1212 is connected to the inlet at the top of the steam discharge channel 113. The bottom end of the inner cylinder 122 has an end wall 1221, so that the inner cylinder 122 has a liquid receiving groove 1222 with an opening facing upward. The edge at the top of each partition plate 111 is connected to the end wall 1221. The side of the inner cylinder 122 has a notch 1223 connecting the liquid receiving groove 1222 and the liquid outlet channel 1211. The outer cylinder 121, the annular protrusion 13, and the bottom wall of the inner cavity of the funnel body 1 form a buffer cavity 1213 therebetween. The circumferential wall of the outer cylinder 121 has an opening corresponding to the position of the liquid outlet channel 1211, so that the liquid outlet channel 1211 is connected to the buffer cavity 1213.

[0041] The annular protrusion 13, the circumferential wall, and the bottom wall of the inner cavity of the funnel body 1 form an annular groove 130 therebetween.

[0042] The sealing ring 2 is arranged in the funnel body 1 and is inserted into the annular groove 130. The outer circumferential wall of the sealing ring 2 is in sealing fit with the inner circumferential wall of the funnel body 1. Specifically, the inner circumferential wall of the sealing ring 2 has an annular clamping groove 21 formed thereon in a circumferential direction. The inner side of the sealing ring 2 has a holding portion 22 for a user to hold, which in this embodiment is a lug protruding inward from the sealing ring 2. The holding portion 22 has two main functions: first, it is convenient for the user to take and place the sealing ring 2, and second, it is convenient for the annular clamping groove 21 to deform for the installation and removal of the filter disc described below.

[0043] The first filter disc 3 has a plurality of filter holes 31 arranged in an interval, and the circumferential edge thereof can be clamped in the annular clamping groove 21.

[0044] The second filter disc 4 has a dispensing hole 41 arranged at the middle position thereof, and the circumferential edge thereof can be clamped in the annular clamping groove 21. The second filter disc 4 is locally pressed upward to form four convex beads 42 arranged in an interval in a circumferential direction at the outer circumferential edge of the dispensing hole 41.

[0045] By selectively installing the first filter disc 3 and the second filter disc 4 at the sealing ring 2, the funnel assembly has at least two states:

[0046] In the first state, as shown in FIG. 1, the first filter disc 3 is installed at the sealing ring 2, and the dispensing hole 41 of the second filter disc 4 is aligned with the liquid outlet nozzle 11. Figure 5As shown, the first filter 3 is stacked above the second filter 4, and the peripheral edges of both are clamped in the annular clamping groove 21, and the opening at the top of the liquid receiving groove 1222 is opposite the distribution hole 41 of the second filter 4. At this time, due to the presence of the convex 42, a gap is always present between the first filter 3 and the second filter 4, avoiding mutual adhesion between the two, which affects the liquid outflow (during extraction, the gap between the first filter 3 and the second filter 4 will increase under the pressure of hot water).

[0047] In the second state, as shown in Figure 6 , only the peripheral edge of the first filter 3 is clamped in the annular clamping groove 21.

[0048] It is worth noting that during extraction, the first filter 3 or the second filter 4 will be deformed under the action of water flow and present a shallow dish shape gradually convex from the outer periphery to the center, and the liquid receiving member 12 and the annular protrusion 13 inside the funnel body 1 can be used as a support for supporting the first filter 3 or the second filter 4, thereby avoiding excessive deformation of the filter, which causes the peripheral edge to disengage from the sealing ring 2; in this embodiment, the top surface of the liquid receiving member 12 is lower than the top surface of the annular protrusion 13, and the top surface of the annular protrusion 13 gradually decreases from the outside to the inside, which can match the slightly deformed shallow dish-shaped filter.

[0049] The above-mentioned funnel assembly is mainly suitable for use in pressure coffee maker preparation equipment.

[0050] The working principle of this embodiment is as follows:

[0051] (1) When the extraction pressure requirement is high, the peripheral edges of the first filter 3 and the second filter 4 stacked above and below can be clamped into the annular clamping groove 21 of the sealing ring 2 for assembly, as shown in Figure 5 , in the first state, during extraction, hot water enters the first filter 3 above and contacts the coffee powder to form coffee liquid, which first passes through the filter hole 31 of the first filter 3 into the gap between the first filter 3 and the second filter 4, then flows out through the distribution hole 41 of the second filter 4 and gathers into the liquid receiving groove 1222, then enters the liquid outlet passage 1211 or even the buffer cavity 1213 through the gap 1223, and finally flows out through the liquid discharge passage 112, while the water vapor carried by the coffee liquid is sequentially discharged through the steam outlet passage 1211 and the steam discharge passage 113, which can avoid the mixing of bubbles in the coffee liquid discharged from the liquid outlet nozzle 11, affecting the taste;

[0052] (2) When the extraction pressure requirement is low, only the peripheral edge of the first filter 3 can be clamped into the annular clamping groove 21 of the sealing ring 2 for assembly, as shown in Figure 6As shown, in the second state, during extraction, hot water enters above the first filter 3 to contact the coffee powder to form coffee liquid, which passes through the filter holes 31 of the first filter 3 into the liquid receiving member 12 and the buffer cavity 1213, and finally flows out through the liquid outlet nozzle 11. It should be noted that when the extraction pressure is low, bubbles are less likely to form, so even if part of the coffee liquid sequentially passes through the steam outlet channel 1211 and the steam discharge channel 113 to be discharged outward, the taste of the final coffee liquid is less affected.

[0053] The funnel assembly of the present application has the following advantages:

[0054] First, it is convenient to assemble, produce and clean, has low cost and high reliability;

[0055] Second, the first filter 3 and the second filter 4 can be used together (suitable for application scenarios with high requirements for extraction pressure), and the first filter 3 can also be used alone (suitable for application scenarios with low requirements for extraction pressure), which is convenient for users to freely switch and has strong versatility.

Claims

1. A hopper assembly for a coffee maker, characterized by: The funnel assembly comprises a funnel body (1) which is internally hollow and has an open top; a sealing ring (2) which is arranged in the funnel body (1) and is in sealing engagement with the inner wall of the funnel body (1), and has an annular clamping groove (21) formed in the inner circumferential wall in the circumferential direction; a first filter disc (3) which has a plurality of spaced-apart filter holes (31) and whose peripheral edge can be clamped in the annular clamping groove (21); and a second filter disc (4) which has a dispensing hole (41) and whose peripheral edge can be clamped in the annular clamping groove (21); The funnel assembly has at least two states: In the first state, the first filter disc (3) is stacked above the second filter disc (4), and the peripheral edges of both are clamped in the annular clamping groove (21); In the second state, only the peripheral edge of the first filter disc (3) is clamped in the annular clamping groove (21).

2. Funnel assembly for a coffee maker according to claim 1, characterized in that: The upper surface of the second filter disc (4) has an upper convex bump (42).

3. Funnel assembly for a coffee maker according to claim 2, characterized in that: The number of the bumps (42) is at least two, and they are spaced apart in the circumferential direction outside the dispensing hole (41).

4. Funnel assembly for a coffee maker according to claim 1, characterized in that: The inner side of the sealing ring (2) at a position above the annular clamping groove (21) has a gripping portion (22) for a user to grip.

5. Funnel assembly for a coffee maker according to any one of claims 1 to 4, characterized in that: The inner cavity of the funnel body (1) is provided with a support portion for supporting the first filter disc (3) or the second filter disc (4).

6. Funnel assembly for a coffee maker according to claim 5, characterized in that: The middle position of the bottom of the funnel body (1) has a liquid outlet nozzle (11), and the support portion comprises a liquid receiving member (12) connected to the inlet of the liquid outlet nozzle (11); and an annular protrusion (13) protruding from the bottom wall of the inner cavity of the funnel body (1) and surrounding the outer periphery of the liquid receiving member (12). The top surface of the liquid receiving member (12) is lower than the top surface of the annular protrusion (13).

7. Funnel assembly for a coffee maker according to claim 6, characterized in that: The annular protrusion (13) and the circumferential wall and bottom wall of the inner cavity of the funnel body (1) form an annular groove (130) therebetween, and the bottom of the sealing ring (2) is inserted into the annular groove (130).

8. Funnel assembly for a coffee maker according to claim 6, characterized in that: The liquid receiving member (12) comprises an outer cylinder (121) connected to the inlet edge of the liquid outlet nozzle (11), an inner cylinder (122) arranged in the outer cylinder (121), and a connecting plate (123) connected between the outer cylinder (121) and the inner cylinder (122), the number of the connecting plates (123) is at least two, and they are spaced apart in the circumferential direction to divide the space between the outer cylinder (121) and the inner cylinder (122) into at least one liquid outlet channel (1211) and at least one steam outlet channel (1212); 9. Funnel assembly for a coffee maker according to claim 6, characterized in that: The bottom end of the inner cylinder (122) has an end wall (1221) so that the inner cylinder (122) forms a liquid receiving groove (1222) with an opening facing upward, and the side of the inner cylinder (122) has a notch (1223) communicating the liquid receiving groove (1222) and the liquid outlet channel (1211); In the first state, the opening at the top of the liquid receiving groove (1222) is directly opposite the dispensing hole (41). ​ 10. Funnel assembly for a coffee maker according to claim 9, characterized in that: The outer cylinder (121), the annular protrusion (13) and the bottom wall of the inner cavity of the funnel body (1) form a buffer cavity (1213) therebetween, and the outer cylinder (121) is open at a position corresponding to the liquid outlet channel (1211) so that the liquid outlet channel (1211) and the buffer cavity (1213) are in communication.

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