Extraction device and coffee machine

Abstract

The extraction device comprises an extraction base, a liquid guide channel and a liquid outlet channel are arranged on the extraction base, a communication opening is formed in the top wall of the liquid outlet channel, and a first connecting part is arranged on the inner wall of the liquid outlet channel; the extraction cup is provided with a second connecting part, the extraction cup is detachably connected to the liquid outlet channel, and the second connecting part is used for being connected with the first connecting part after the extraction cup is placed into the liquid outlet channel; the sealing piece is arranged on the top wall of the liquid guide channel and annularly arranged on the periphery of the communication opening, a sealing piece is arranged at the bottom end of the sealing piece in a protruding mode, and the sealing piece is used for being connected with the inner side wall of the extraction cup after the extraction cup is placed into the liquid outlet channel. The coffee machine comprises a coffee machine body and the extraction device, and the extraction base is arranged on the coffee machine body. The sealing piece arranged on the liquid outlet channel is provided with the sealing piece protruding downwards, the sealing piece can abut against the inner side wall of the extraction cup for sealing after the extraction cup is placed in the liquid outlet channel, and the sealing face is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of beverage making, in particular to an extraction device and a coffee machine. Background Art

[0002] In beverage machines, such as coffee machines or separate extraction machines, coffee powder is placed in a coffee powder receiver, and then the powder receiver is placed at the hot water outlet of the coffee machine or the extraction port of the extraction machine. When the extraction is performed, hot water is introduced into the cup body to achieve drip extraction. When the cup body is placed at the hot water outlet or extraction port, the connection between the two will be sealed to prevent water or powder from splashing out.

[0003] However, in the existing extraction devices or coffee machines, after the cup body is placed in, the seal between the two is only performed by a sealing ring on the extraction cup or a sealing ring at the outlet position, which results in a poor sealing effect and easily causes water or powder to splash out during the extraction process. Utility Model Content

[0004] In order to overcome at least one of the defects of the prior art described above, the utility model provides an extraction device and a coffee machine, wherein the sealing member provided in the liquid outlet channel has a downwardly protruding sealing sheet, which can be sealed against the inner wall of the extraction cup after the extraction cup is placed, thereby increasing the sealing surface.

[0005] The technical solution adopted by the utility model to solve the problem is:

[0006] An extraction device comprising:

[0007] An extraction seat, wherein a liquid guide channel and a liquid outlet channel are provided on the extraction seat, a conducting port is provided on the top wall of the liquid outlet channel, a first connecting portion is provided on the inner wall of the liquid outlet channel, one end of the liquid guide channel is used to introduce liquid; and the other end of the liquid guide channel is connected to the conducting port;

[0008] An extraction cup, wherein a second connection portion is provided on the extraction cup, and the extraction cup is detachably connected to the liquid outlet channel, and the second connection portion is used to connect with the first connection portion after the extraction cup is placed in the liquid outlet channel;

[0009] A sealing member is arranged on the top wall of the liquid guiding channel and is arranged around the periphery of the conducting port. A sealing sheet is protruding from the bottom end of the sealing member. The sealing sheet is used to seal with the inner wall of the extraction cup after the extraction cup is placed in the liquid outlet channel.

[0010] Furthermore, an inner side wall of the sealing sheet is provided with an inclined surface, and the inclined surface gradually inclines outward from top to bottom.

[0011] Furthermore, the top wall of the liquid outlet channel is provided with an annular groove, and the annular groove is arranged around the periphery of the conducting port; the sealing member is installed in the annular groove; and the sealing sheet extends out from the bottom end of the annular groove.

[0012] Furthermore, a first annular convex rib is convexly provided on the top wall of the annular groove, and the first annular convex rib abuts against the top end surface of the sealing component.

[0013] Furthermore, the inner side wall of the sealing member is provided with a second annular convex rib, and the second annular convex rib abuts against the inner side wall of the annular groove.

[0014] Furthermore, the seal is provided with a protruding edge, which is arranged around the outer peripheral wall of the seal, and is used to extend from the side of the sealing groove and abut against the top wall of the liquid outlet channel after the seal is installed in the annular groove.

[0015] Furthermore, at least two clamping grooves are provided on the inner side wall of the liquid outlet channel; at least two of the clamping grooves are spaced apart in the circumferential direction of the liquid outlet channel; at least two first clamping blocks are provided on the outer peripheral wall of the extraction cup, at least two of the first clamping blocks are spaced apart in the circumferential direction of the extraction cup, and the first clamping block is inserted between the two clamping grooves and is clamped into the clamping groove after the extraction cup is rotated.

[0016] Furthermore, at least two second clamping blocks are provided on the inner side wall of the liquid outlet channel, and the at least two second clamping blocks are spaced apart and distributed in the circumferential direction of the liquid outlet channel; and each of the second clamping blocks is provided with the clamping groove.

[0017] Furthermore, the bottom wall of the engaging groove is provided with a first guiding inclined surface, the first engaging block is provided with a second guiding inclined surface, and the first guiding inclined surface is used to slide with the first guiding inclined surface and guide the first engaging block to move upward.

[0018] A coffee machine comprises a coffee machine body and the extraction device, wherein the extraction seat is arranged on the coffee machine body.

[0019] In summary, the utility model has the following technical effects:

[0020] Hot water is introduced through the liquid guide channel and introduced into the extraction cup in the liquid outlet channel through the guide port. After the hot water is introduced, the top surface of the extraction cup is sealed with the sealing member on the top wall of the liquid outlet channel, and the sealing sheet is in contact with the inner wall of the extraction cup. In this way, the sealing sheet can seal the inner wall of the top opening of the extraction cup, and the sealing member can seal the top wall of the liquid outlet channel at the top of the extraction cup, forming a double seal with a good sealing effect. In addition, in the process of introducing hot water into the extraction cup, the internal heat will rise to form a large air pressure inside the extraction cup, and the pressure can be pressed against the sealing sheet and the inner wall of the extraction cup. The greater the air pressure formed by the continuous introduction of hot water, the tighter the sealing sheet can be pressed, so that the sealing effect is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the structure of the extraction device of the utility model;

[0022] Figure 2 It is a cross-sectional view of the extraction device of the utility model;

[0023] Figure 3 It is a structural schematic diagram of the extraction seat of the extraction device of the utility model;

[0024] Figure 4 This is a schematic diagram of the structure of the sealing member of the extraction device of the utility model;

[0025] Figure 5 It is a structural schematic diagram of the extraction cup of the extraction device of the utility model.

[0026] Among them, the meanings of the figure numbers are as follows: 10, extraction seat; 11, liquid guide channel; 12, liquid outlet channel; 121, conduction port; 13, annular groove; 131, first annular convex rib; 14, second clamping block; 141, clamping groove; 142, first guide slope; 20, extraction cup; 21, first clamping block; 211, second guide slope; 30, sealing member; 31, sealing sheet; 32, second annular convex rib; 33, protruding edge. DETAILED DESCRIPTION

[0027] For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0028] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0030] See also Figure 1-Figure 5 The utility model discloses an extraction device, including an extraction seat 10, an extraction cup 20 and a sealing member 30. A liquid guide channel 11 and a liquid outlet channel 12 are provided on the extraction seat 10. A conducting port 121 is provided on the top wall of the liquid outlet channel 12, and a first connecting portion is provided on the inner wall of the liquid outlet channel 12. One end of the liquid guide channel 11 is used to introduce liquid, and the other end of the liquid guide channel 11 is connected to the conducting port 121.

[0031] In addition, a second connection portion is provided on the extraction cup 20, and the extraction cup 20 is detachably connected to the liquid outlet channel 12. After the extraction cup 20 is placed in the liquid outlet channel 12, the second connection portion on the extraction cup 20 can be detachably connected to the first connection portion. When taking out the extraction cup 20, the second connection portion can be separated from the first connection portion.

[0032] Specifically, the sealing member 30 is disposed on the top wall of the liquid guiding channel 11, and the sealing member 30 can be arranged around the periphery of the guiding port 121, and a sealing sheet 31 is protruded from the bottom end of the sealing member 30. After the extraction cup 20 is placed in the liquid outlet channel 12, the sealing sheet 31 protruding from the bottom end of the sealing member 30 can extend into the extraction cup 20 and fit the inner wall of the extraction cup 20.

[0033] On the basis of the above structure, when using the extraction device of the present invention, a filter can be placed in the extraction cup 20 during the extraction action. Taking coffee extraction as an example, coffee powder is placed on the filter, and then the extraction cup 20 is placed in the liquid outlet channel 12 of the extraction seat 10. The second connecting portion on the extraction cup 20 can be connected to the first connecting portion of the liquid outlet channel 12, and the top end surface of the extraction cup 20 is sealed with the sealing member 30 on the top wall of the liquid outlet channel 12. The sealing sheet 31 of the sealing member 30 can extend into the interior of the extraction cup 20 and fit with the inner wall of the extraction cup 20.

[0034] After that, hot water is introduced through the liquid guide channel 11, and introduced into the extraction cup 20 in the liquid outlet channel 12 through the guide port 121. After the hot water is introduced, the top surface of the extraction cup 20 is sealed with the sealing member 30 on the top wall of the liquid outlet channel 12, and the sealing sheet 31 is in contact with the inner wall of the extraction cup 20, so that the sealing sheet 31 can seal the inner wall of the top opening of the extraction cup 20, and the sealing member 30 can seal the top wall of the liquid outlet channel 12 at the top of the extraction cup 20, forming a double seal. In addition, in the process of introducing hot water into the extraction cup 20, the internal heat will rise to form a large air pressure inside the extraction cup 20, and the pressure can be pressed against the sealing sheet 31 and the inner wall of the extraction cup 20. The greater the air pressure formed by the continuous introduction of hot water, the tighter the sealing sheet 31 can be pressed, so that the sealing effect is better.

[0035] It should be noted that the sealing member 30 in this embodiment can be made of silicone or rubber materials in the prior art, so that it can be deformed when under pressure to form a larger sealing surface, thereby achieving a better sealing effect.

[0036] Furthermore, a slope can be provided on the inner wall of the sealing sheet 31, and the slope gradually tilts outward from top to bottom, so that after the sealing sheet 31 is sealed and fitted to the inner wall of the extraction cup 20, the slope can be subjected to air pressure to decompose the longitudinal pressure into lateral pressure and press against the inner wall of the extraction cup 20, so that the sealing sheet 31 is more easily deformed to form a larger sealing surface and fits tightly against the inner wall of the extraction cup 20.

[0037] Furthermore, the top wall of the liquid outlet channel 12 is provided with an annular groove 13, and the annular groove 13 is arranged around the periphery of the conducting port 121. During assembly, the seal 30 can be installed in the annular groove 13, and the sealing sheet 31 extends out of the bottom end of the annular groove 13. In this way, when the seal 30 is assembled, the seal 30 can be installed in the annular groove 13. After the seal 30 is installed in the annular groove 13, the inner and outer sides of the seal 30 can be sealed and fitted with the inner side wall of the annular groove 13, and the top surface of the seal 30 is fitted with the annular groove 13. In this way, after the seal 30 is installed in the liquid outlet channel 12, at least three surfaces are sealed and matched with the top wall of the liquid outlet channel 12 to form a larger sealing surface. Moreover, after the seal 30 is installed in the annular groove 13, it is not easy to shift, and the sealing structure is stable.

[0038] The sealing sheet 31 protruding from the bottom end of the sealing member 30 can extend into the extraction cup 20 to seal with the inner wall of the extraction cup 20 .

[0039] Furthermore, a first annular rib 131 may be convexly provided on the top wall of the annular groove 13, and the first annular rib 131 abuts against the top end surface of the seal 30, so that the first annular rib 131 can form at least one layer of sealing between the top wall of the annular groove 13 and the top end surface of the seal 30, and the first annular rib 131 can press the seal 30 downward, so that the deformation of the top end surface of the seal 30 can produce a larger sealing surface and a better sealing effect.

[0040] Of course, at least two of the first annular convex ribs 131 may be provided, and the at least two first annular convex ribs 131 are distributed sequentially from the inside to the outside, so that layers of sealing can be formed inside and outside, and the sealing effect is better.

[0041] Furthermore, a second annular rib 32 is provided on the inner side wall of the sealing member 30, and the second annular rib 32 abuts against the inner side wall of the annular groove 13. Similarly, the second annular rib 32 can form at least one layer of sealing from bottom to top on the side wall of the annular groove 13, and the second annular rib 32 is pressed against the side wall of the annular groove 13 so that the side surface of the sealing member 30 can be deformed to produce a larger sealing surface, and the sealing effect is also better.

[0042] Of course, the second annular rib 32 may be provided with at least two circles from bottom to top, so that sealing is performed layer by layer from bottom to top, and the sealing effect is better.

[0043] Furthermore, a protruding edge 33 may be provided on the seal 30, and the protruding edge 33 is arranged around the outer peripheral wall of the seal 30. After the seal 30 is installed in the annular groove 13, the protruding edge 33 may extend from the side of the sealing groove and abut against the top wall of the liquid outlet channel 12. That is, after the seal 30 is assembled in the sealing groove, from bottom to top and from inside to outside, the sealing sheet 31 of the seal 30, the second annular convex rib 32, the top surface of the seal 30, the first annular convex rib 131, and the protruding edge 33 are sealed layer by layer, so that the sealing structure formed in this way is multi-arranged, and the sealing effect is better.

[0044] Furthermore, in order to facilitate the assembly of the extraction cup 20 and the extraction seat 10, at least two clamping grooves 141 may be provided on the inner side wall of the liquid outlet channel 12, and the at least two clamping grooves 141 are spaced apart in the circumferential direction of the liquid outlet channel 12. Correspondingly, at least two first clamping blocks 21 are provided on the outer peripheral wall of the extraction cup 20, and the at least two first clamping blocks 21 are spaced apart in the circumferential direction of the extraction cup 20. When the extraction cup 20 is assembled, the first clamping block 21 on the extraction cup 20 may be inserted between the two clamping grooves 141. When the first clamping block 21 corresponds to the position of the clamping groove 141, the extraction cup 20 may be rotated. After the extraction cup 20 is rotated, the first clamping block 21 on the extraction cup 20 may be clamped into the clamping groove 141, so that the extraction cup 20 and the extraction seat 10 are clamped together.

[0045] When taking out the extraction cup 20 , the extraction cup 20 is rotated, and after the first clamping block 21 is rotated out of the clamping groove 141 , the liquid outlet channel 12 can be taken out downwards through the gap between the two clamping grooves 141 .

[0046] More specifically, at least two second clamping blocks 14 may be provided on the inner side wall of the liquid outlet channel 12. Similarly, at least two second clamping blocks 14 are spaced apart in the circumferential direction of the liquid outlet channel 12. In this way, a clamping groove 141 may be provided on each second clamping block 14. When assembling the extraction cup 20, each first clamping block 21 may be inserted into the interval between the two second clamping blocks 14. When the first clamping block 21 moves upward to correspond to the clamping groove 141 of the first clamping block 21, the extraction cup 20 is rotated to clamp the first clamping block 21 into the clamping groove 141 of the second clamping block 14.

[0047] Of course, the detachable connection between the extraction cup 20 and the extraction seat 10 can also be a threaded connection, a connection between a buckle and a slot, or a connection between a spring pin and a positioning hole, and the specific selection can be made according to actual needs.

[0048] Furthermore, a first guiding slope 142 may be provided on the bottom wall of the clamping groove 141, and a second guiding slope 211 may be provided on the first clamping block 21, so that when the first clamping block 21 is clamped into the clamping groove 141, the first guiding slope 142 may slide with the first guiding slope 142 and guide the first clamping block 21 to move upward. The upward movement of the first clamping block 21 may drive the extraction cup 20 as a whole to press the sealing member 30 of the liquid outlet channel 12 upward, so that the sealing member 30 is deformed to form a clamping seal, and the sealing structure is more stable.

[0049] Embodiment 2,

[0050] A coffee machine comprises a coffee machine body and the extraction device of embodiment 1, wherein an extraction seat 10 is arranged on the coffee machine body, a water heater can be arranged in the coffee machine body, and a water outlet of the water heater can be connected to a liquid guide channel 11 of the extraction seat 10, so that hot water can be introduced to achieve coffee extraction.

[0051] To extract coffee, place coffee powder on the filter, and then put the extraction cup 20 into the liquid outlet channel 12 of the extraction base 10. The second connection portion on the extraction cup 20 can be connected to the first connection portion of the liquid outlet channel 12, and the top surface of the extraction cup 20 is sealed with the sealing member 30 on the top wall of the liquid outlet channel 12. The sealing sheet 31 of the sealing member 30 can extend into the interior of the extraction cup 20 and fit with the inner wall of the extraction cup 20.

[0052] After that, hot water is introduced through the liquid guide channel 11, and then introduced into the extraction cup 20 in the liquid outlet channel 12 through the guide port 121. After the hot water is introduced, the top surface of the extraction cup 20 is sealed with the sealing member 30 on the top wall of the liquid outlet channel 12, and the sealing sheet 31 is in contact with the inner wall of the extraction cup 20. In this way, the sealing sheet 31 can seal the inner wall of the top opening of the extraction cup 20, and the sealing member 30 can seal the top wall of the liquid outlet channel 12 at the top of the extraction cup 20, forming a double seal. In addition, in the process of introducing hot water into the extraction cup 20, the internal heat will rise to form a large air pressure inside the extraction cup 20, and the pressure can be pressed against the sealing sheet 31 and the inner wall of the extraction cup 20. The greater the air pressure formed by the continuous introduction of hot water, the tighter the sealing sheet 31 can be pressed, so that the sealing effect is better.

[0053] It should be noted that the extraction device in this embodiment is the same as that in Embodiment 1 in other structures and working principles, which will not be described in detail here.

[0054] The technical means disclosed in the solution of the utility model are not limited to the technical means disclosed in the above-mentioned implementation mode, but also include technical solutions composed of any combination of the above technical features. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the utility model, and these improvements and modifications are also regarded as the protection scope of the utility model.

Claims

1. An extraction device, characterized in that: include, An extraction seat, wherein a liquid guide channel and a liquid outlet channel are provided on the extraction seat, a conducting port is provided on the top wall of the liquid outlet channel, a first connecting portion is provided on the inner wall of the liquid outlet channel, one end of the liquid guide channel is used to introduce liquid; and the other end of the liquid guide channel is connected to the conducting port; An extraction cup, wherein a second connection portion is provided on the extraction cup, and the extraction cup is detachably connected to the liquid outlet channel, and the second connection portion is used to connect with the first connection portion after the extraction cup is placed in the liquid outlet channel; A sealing member is arranged on the top wall of the liquid guiding channel and is arranged around the periphery of the conducting port. A sealing sheet is protruding from the bottom end of the sealing member. The sealing sheet is used to seal with the inner wall of the extraction cup after the extraction cup is placed in the liquid outlet channel.

2. The extraction device according to claim 1, characterized in that The inner side wall of the sealing sheet is provided with an inclined surface, and the inclined surface gradually inclines outwards from top to bottom.

3. The extraction device according to claim 2, characterized in that: The top wall of the liquid outlet channel is provided with an annular groove, and the annular groove is arranged around the periphery of the conducting port; the sealing member is installed in the annular groove; and the sealing sheet extends out from the bottom end of the annular groove.

4. The extraction device according to claim 3, characterized in that: A first annular convex rib is convexly provided on the top wall of the annular groove, and the first annular convex rib abuts against the top end surface of the sealing member.

5. The extraction device according to claim 3, characterized in that: The inner side wall of the sealing member is provided with a second annular convex rib, and the second annular convex rib abuts against the inner side wall of the annular groove.

6. The extraction device according to claim 3, characterized in that: The seal is provided with a protruding edge, which is arranged around the outer peripheral wall of the seal. The protruding edge is used to extend from the side of the sealing groove and abut against the top wall of the liquid outlet channel after the seal is installed in the annular groove.

7. The extraction device according to any one of claims 1 to 6, characterized in that: At least two clamping grooves are provided on the inner side wall of the liquid outlet channel; at least two of the clamping grooves are spaced apart in the circumferential direction of the liquid outlet channel; at least two first clamping blocks are provided on the outer peripheral wall of the extraction cup, at least two of the first clamping blocks are spaced apart in the circumferential direction of the extraction cup, and the first clamping block penetrates between the two clamping grooves and is clamped into the clamping groove after the extraction cup is rotated.

8. The extraction device according to claim 7, characterized in that At least two second clamping blocks are arranged on the inner side wall of the liquid outlet channel, and the at least two second clamping blocks are spaced apart and distributed around the circumference of the liquid outlet channel; each of the second clamping blocks is provided with the clamping groove.

9. The extraction device according to claim 8, characterized in that The bottom wall of the clamping groove is provided with a first guiding inclined surface, and the first clamping block is provided with a second guiding inclined surface. The first guiding inclined surface is used for slidingly cooperating with the first guiding inclined surface and guiding the first clamping block to move upward.

10. A coffee machine, characterized in that: It comprises a coffee machine body and an extraction device according to any one of claims 1 to 9, wherein the extraction seat is arranged on the coffee machine body.

Images