Receptacle, extraction device and coffee machine

Abstract

The application relates to a material receiving mechanism, an extraction device and a coffee machine. The material receiving mechanism comprises a material receiving cylinder for loading a coffee powder cake; a first material pushing assembly movably arranged in the material receiving cylinder; and a second material pushing assembly movably arranged in the first material pushing assembly. When the second material pushing assembly pushes out the coffee powder cake, the first material pushing assembly is driven to push the coffee powder cake. When the material receiving mechanism is located at an initial position, the top side of the first material pushing assembly is lower than the top side of the material receiving cylinder and higher than the top side of the second material pushing assembly. When the material receiving mechanism is located at a pushing-out position, the top side of the first material pushing assembly is flush with the top side of the second material pushing assembly. The extraction device comprises the above material receiving mechanism and a material pressing mechanism. The coffee machine comprises the above extraction device. The material receiving mechanism, the extraction device and the coffee machine can improve the situation that the coffee powder cake is insufficiently extracted due to low temperature at the bottom of the coffee powder cake, and can also improve the situation that residual powder cannot be removed from the material receiving cylinder.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of food processing, in particular to a material receiving mechanism, an extraction device and a coffee machine. BACKGROUND

[0002] In the process of extracting coffee liquid, the coffee machine needs to put the coffee powder into the powder receiving cylinder and press it, then repeatedly extract it, and finally remove it by the powder scraper. Since hot water needs to flow from top to bottom through the coffee powder cake during extraction, the lower edge of the coffee powder cake often has insufficient extraction temperature, resulting in poor taste of the extracted coffee. SUMMARY

[0003] Therefore, it is necessary to provide a material receiving mechanism, an extraction device and a coffee machine to solve the problem of poor taste of the extracted coffee.

[0004] A material receiving mechanism comprises:

[0005] a material receiving cylinder for loading a coffee powder cake;

[0006] a first material pushing assembly movably arranged in the material receiving cylinder;

[0007] a second material pushing assembly movably arranged in the first material pushing assembly, and capable of driving the first material pushing assembly to push the coffee powder cake when the second material pushing assembly pushes out the coffee powder cake;

[0008] wherein, when the material receiving mechanism is located at an initial position, the top side of the first material pushing assembly is lower than the top side of the material receiving cylinder and higher than the top side of the second material pushing assembly; and when the material receiving mechanism is located at a pushing-out position, the top side of the first material pushing assembly is flush with the top side of the second material pushing assembly.

[0009] The material receiving mechanism described above can press the coffee powder into a coffee powder cake with a stepped bottom in the material receiving cylinder, so as to improve the situation that the coffee powder cake has insufficient extraction due to low temperature at the bottom, and make the extraction of coffee more sufficient; and after the extraction is completed, the bottom of the coffee powder cake is pushed from a stepped shape to a flat shape by the first material pushing assembly and the second material pushing assembly, so as to improve the situation that residual powder cannot be removed in the powder receiving cylinder, and avoid the influence of residual powder on the taste of coffee.

[0010] In one of the embodiments, the first material pushing assembly comprises a first material pushing body, which is arranged in the material receiving cylinder and is movable along a first direction, and the first direction is the height direction of the material receiving cylinder.

[0011] In one of the embodiments, the first material pushing assembly further comprises a first sealing member, and the outer wall of the first material pushing body is provided with a first groove for accommodating the first sealing member.

[0012] In one of the embodiments, the first pushing body is provided with a avoiding slot in the first direction for the second pushing assembly to pass through.

[0013] In one of the embodiments, the second pushing assembly comprises a second pushing body movably passing through the avoiding slot in the first direction.

[0014] In one of the embodiments, the second pushing body comprises a pushing part and a pushing rod connected to the pushing part, the outer wall of the pushing rod is provided with a limiting part, the limiting part and the pushing part are spaced apart in the first direction, the pushing rod movably passes through the avoiding slot in the first direction, and the limiting part and the pushing part are both limited outside the avoiding slot.

[0015] An extraction device, comprising:

[0016] The above-mentioned material receiving mechanism;

[0017] A material pressing mechanism moving in the direction of approaching or moving away from the material receiving mechanism;

[0018] When the extraction device is in the pressing state, the material pressing mechanism is pressed to the pressing station, and the material receiving mechanism is located at the initial station; when the extraction device is in the pushing-out state, the material pressing mechanism is separated from the material receiving mechanism, and the material receiving mechanism is located at the pushing-out station.

[0019] The above-mentioned extraction device, the coffee powder can be pressed into a coffee powder cake with a stepped bottom in the material receiving cylinder, the situation of insufficient extraction caused by low temperature of the bottom of the coffee powder cake is improved, and the extraction of coffee is more sufficient; after the extraction is completed, the bottom of the coffee powder cake is pushed to be flat from the stepped shape by the first pushing assembly and the second pushing assembly, the situation that the residual powder cannot be removed in the powder receiving cylinder is improved, and the residual powder is avoided to affect the taste of coffee.

[0020] In one of the embodiments, the material pressing mechanism has a liquid inlet channel, and the powder receiving mechanism has a liquid outlet channel;

[0021] When the extraction device is in the pressing state, the coffee powder cake is clamped between the material pressing mechanism and the powder receiving mechanism, water injection into the liquid inlet channel can extract the coffee powder cake, and the extracted liquid is output from the liquid outlet channel.

[0022] In one of the embodiments, the extraction device further comprises a filter screen with a plurality of filter holes, and the bottom side of the material pressing mechanism and the top side of the second pushing assembly are respectively provided with the filter screen.

[0023] In one of the embodiments, the material pressing mechanism comprises a material pressing body, and the material pressing body is provided with the liquid inlet channel.

[0024] In one embodiment, the pressing mechanism further comprises a second sealing member, and the outer wall of the pressing body is provided with a second groove for accommodating the second sealing member.

[0025] A coffee machine comprising the extraction device as described above.

[0026] The coffee machine as described above, the extraction device can improve the situation that the coffee powder cake is insufficiently extracted due to low temperature at the bottom, and the situation that the residual powder cannot be removed from the powder receiving cylinder. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 A schematic view of the extraction device in an initial state according to one embodiment.

[0028] Figure 2 A schematic view of the extraction device in a pressing state according to one embodiment. Figure 1

[0029] A schematic view of the extraction device in a pushing-out state according to one embodiment. Figure 3 Figure 1 A schematic view of the powder receiving mechanism in the extraction device according to one embodiment.

[0030] Figure 4 Figure 1 A schematic view of the pressing mechanism in the extraction device according to one embodiment.

[0031] Figure 5 A schematic view of the powder receiving mechanism according to one embodiment. Figure 4

[0032] Figure 6 A schematic view of the pressing mechanism in the extraction device according to one embodiment. Figure 1 REFERENCE SIGNS:

[0033] 10, powder receiving mechanism; 10a, liquid outlet channel; 100, powder receiving cylinder; 200, first powder pushing assembly; 210, first powder pushing body; 211, avoiding groove; 213, pressing tablet; 220, first sealing member; 300, second powder pushing assembly; 311, pushing-out part; 312, pushing rod; 313, limiting part;

[0034] 20, pressing mechanism; 20a, liquid inlet channel; 21, pressing body; 22, second sealing member; 30, filter screen; 40, coffee powder cake.

[0035] DETAILED DESCRIPTION

[0036] ​​​​In order to make the above objectives, features and advantages of the present application more clear and easily understood, the detailed description of the specific embodiments of the present application will be made in conjunction with the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced in a variety of ways beyond the specific embodiments described herein, and skilled in the art can make similar improvements without departing from the spirit of the present application, therefore the present application is not limited to the specific embodiments disclosed below.

[0037] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0038] In the present application, the terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically limited. The terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used herein are only for illustrative purposes, and do not represent the only implementation.

[0039] In the present application, unless otherwise specifically defined and limited, the terms "initial", "connected", "connected", "fixed" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, it can be the internal communication of two elements or the interaction relationship of two elements, unless otherwise specifically limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances. When an element is referred to as "fixed to" or "disposed on" another element, it can be directly on another element or there can be a middle element. When an element is considered to be "connected" to another element, it can be directly connected to another element or there can be a middle element.

[0040] Please refer to Figure 1The material receiving mechanism 10 in an embodiment comprises a material receiving cylinder 100, a first material pushing assembly 200 and a second material pushing assembly 300. The material receiving cylinder 100 is used to load the coffee powder cake 40. The first material pushing assembly 200 is movably arranged in the material receiving cylinder 100. The second material pushing assembly 300 is movably arranged in the first material pushing assembly 200. When the second material pushing assembly 300 pushes the coffee powder cake 40, the first material pushing assembly 200 is driven to push the coffee powder cake 40.

[0041] When the material receiving mechanism 10 is located at the initial station, the top side of the first material pushing assembly 200 is lower than the top side of the material receiving cylinder 100 and higher than the top side of the second material pushing assembly 300. When the material receiving mechanism 10 is located at the pushing station, the top side of the first material pushing assembly 200 is flush with the top side of the second material pushing assembly 300.

[0042] It should be noted that the material receiving mechanism 10 is applied to the extraction device of the coffee machine. In the extraction process of the coffee liquid, the coffee powder is first placed in the material receiving cylinder 100 to be compressed into the coffee powder cake 40. Then, after the coffee liquid is extracted, the coffee powder cake 40 is pushed out of the material receiving cylinder 100 and the next extraction is performed. The extraction is repeated to obtain coffee liquid with a certain concentration.

[0043] For example, when the extraction device is in the initial state, referring to Figure 1 the material receiving mechanism 10 is located at the initial station, and the coffee powder is placed in the material receiving cylinder 100.

[0044] When the extraction device is in the compression state, referring to Figure 2 Since the top side of the first material pushing assembly 200 is lower than the top side of the material receiving cylinder 100 and higher than the top side of the second material pushing assembly 300, a stepped bottom cavity is formed in the material receiving cylinder 100. The coffee powder in the material receiving cylinder 100 can also be compressed into a coffee powder cake 40 with a stepped bottom. Then, the extraction is repeated to obtain coffee liquid with a certain concentration.

[0045] When the extraction device is in the pushing state, referring to Figure 3 the material receiving mechanism 10 is located at the pushing station. The second material pushing assembly 300 moves upward and drives the first material pushing assembly 200 to move upward together to push the coffee powder cake 40 to above the opening of the material receiving cylinder. Since the top side of the first material pushing assembly 200 is flush with the top side of the second material pushing assembly 300, the bottom of the coffee powder cake 40 is pushed from the stepped shape to the flat shape.

[0046] The above-mentioned material receiving mechanism 10, since the top side of the first material pushing assembly 200 is lower than the top side of the material receiving cylinder 100 and higher than the top side of the second material pushing assembly 300, the coffee powder in the material receiving cylinder 100 can be compressed into a coffee powder cake 40 with a stepped bottom, improving the situation that insufficient extraction of coffee is caused by low temperature of the bottom, and making the extraction of coffee more sufficient; after the extraction is completed, the bottom of the coffee powder cake 40 is pushed by the first material pushing assembly 200 and the second material pushing assembly 300 from a stepped shape to a flat shape, improving the situation that residual powder cannot be removed in the powder receiving cylinder, and avoiding the influence of residual powder on the taste of coffee.

[0047] In the embodiment, the material receiving cylinder 100 is a hollow cylindrical shape with an open upper end. In other embodiments, the material receiving cylinder 100 can also be a hollow square cylinder or other shapes.

[0048] In the embodiment, the material receiving cylinder 100 is made of plastic. In other embodiments, the material receiving cylinder 100 can also be made of stainless steel or other materials.

[0049] Please refer to Figure 4 and Figure 5 , the first material pushing assembly 200 includes a first material pushing body 210, which is arranged in the material receiving cylinder 100 and is movable in a first direction, which is the height direction of the material receiving cylinder 100.

[0050] It should be noted that the first direction is the Z direction shown in Figure 4 . The first material pushing body 210 is movably arranged in the material receiving cylinder 100, and when the second material pushing assembly 300 is pushed upward, the second material pushing assembly 300 can push the first material pushing body 210 upward.

[0051] In the embodiment, the first material pushing body 210 is a hollow cylindrical shape with an open upper end, and a pressing plate 213 is arranged above the first material pushing body 210, and the pressing plate 213 is made of stainless steel, and the first material pushing body 210 is made of plastic. In other embodiments, the first material pushing body 210 can also be a hollow square cylinder or other shapes.

[0052] Further, please refer to Figure 5 , the first material pushing assembly 200 further includes a first sealing member 220, and the outer wall of the first material pushing body 210 is provided with a first groove for accommodating the first sealing member 220.

[0053] It can be understood that by arranging the first groove on the outer wall of the first material pushing body 210, the first sealing member 220 is accommodated in the first groove and clamped between the outer wall of the first material pushing body 210 and the inner wall of the material receiving cylinder 100, which can better seal the outer wall of the first material pushing body 210 and the inner wall of the material receiving cylinder 100.

[0054] In the embodiment, the first seal 220 and the first groove are both annular and one in number. In other embodiments, the first seal 220 and the first groove can also be at least two in number and one-to-one corresponding, and each first groove can be spaced apart along the height direction of the first pushing body 210.

[0055] Please refer to Figure 5 The first pushing body 210 is provided with an avoiding groove 211 in the first direction, so that the second pushing assembly 300 can pass through.

[0056] It can be understood that the avoiding groove 211 penetrates the first pushing body 210 from top to bottom, so that the second pushing assembly 300 can pass through the avoiding groove 211 and move in the first direction, facilitating the installation of the second pushing assembly 300 and not hindering the movement of the second pushing assembly 300.

[0057] In the embodiment, the avoiding groove 211 is a cylindrical hollow groove. In other embodiments, the avoiding groove 211 can also be a prismatic or other shaped hollow groove.

[0058] In the embodiment, the avoiding groove 211 is provided in the middle of the first pushing body 210. In other embodiments, the avoiding groove 211 can also be provided at other positions of the first pushing body 210.

[0059] Please refer to Figure 4 and Figure 5 The second pushing assembly 300 includes a second pushing body movably penetrating the avoiding groove 211 in the first direction.

[0060] In the embodiment, the second pushing body is a solid structure. In other embodiments, the second pushing body can also be a hollow structure.

[0061] Specifically, please refer to Figure 4 and Figure 5 The second pushing body includes a pushing-out portion 311 and a push rod 312 connected to the pushing-out portion 311, the outer wall of the push rod 312 is provided with a limiting portion 313, the limiting portion 313 and the pushing-out portion 311 are spaced apart in the first direction, the push rod 312 movably penetrates the avoiding groove 211 in the first direction, and the limiting portion 313 and the pushing-out portion 311 are both limited outside the avoiding groove 211.

[0062] It should be noted that the limiting portion 313 and the pushing portion 311 are spaced apart in the first direction to reserve sufficient space for the movement of the second pushing body in the first direction. The outer diameters of the limiting portion 313 and the pushing portion 311 are greater than the inner diameter of the avoiding groove 211, and the outer diameter of the push rod 312 is less than or equal to the inner diameter of the avoiding groove 211, so that the push rod 312 can be smoothly arranged in the avoiding groove 211, and the limiting portion 313 and the pushing portion 311 are limited outside the avoiding groove 211.

[0063] In the embodiment, the pushing portion 311, the push rod 312 and the limiting portion 313 are integrally formed, which is good in integrity and convenient for quick disassembly and assembly. In other embodiments, the limiting portion 313 and the push rod 312 can also be a split structure.

[0064] In the embodiment, the pushing portion 311 and the push rod 312 are in cylindrical shape. In other embodiments, the pushing portion 311 and the push rod 312 can also be in prismatic shape or other shapes.

[0065] In the embodiment, the limiting portion 313 is in closed ring shape. In other embodiments, the limiting portion 313 can also be in elliptical ring shape or other shapes.

[0066] Please refer to Figure 1 The extraction device in an embodiment includes the above-mentioned material receiving mechanism 10 and the material pressing mechanism 20, and the material pressing mechanism 20 can move in the direction close to or away from the material receiving mechanism 10.

[0067] When the extraction device is in the pressing state, the material pressing mechanism 20 is pressed to the pressing station, and the material receiving mechanism 10 is located at the initial station. When the extraction device is in the pushing state, the material pressing mechanism 20 is separated from the material receiving mechanism 10, and the material receiving mechanism 10 is located at the pushing station.

[0068] It should be noted that when the extraction device is in the pressing state, referring to Figure 2 Since the top side of the first pushing assembly 200 is lower than the top side of the material receiving cylinder 100 and higher than the top side of the second pushing assembly 300, a cavity with a stepped bottom is formed in the material receiving cylinder 100, and the coffee powder in the material receiving cylinder 100 can also be pressed into a coffee powder cake 40 with a stepped bottom, and then a coffee liquid with a certain concentration is obtained by repeated extraction. When the extraction device is in the pushing state, referring to Figure 3 The material receiving mechanism 10 is located at the pushing station, the second pushing assembly 300 moves upward and drives the first pushing assembly 200 to move upward together, so as to push the coffee powder cake 40 to above the opening of the powder receiving cylinder. Since the top side of the first pushing assembly 200 is flush with the top side of the second pushing assembly 300, the bottom of the coffee powder cake 40 is pushed from the stepped shape to the flat shape.

[0069] The coffee powder in the receiving cylinder 100 can be compressed into the coffee powder cake 40 with a stepped bottom, the insufficient extraction caused by the low temperature of the bottom of the coffee powder cake 40 is improved, and the extraction of coffee is more sufficient; after the extraction is completed, the bottom of the coffee powder cake 40 is pushed from the stepped shape to the flat shape by the first pushing assembly 200 and the second pushing assembly 300, the situation that the residual powder cannot be removed in the receiving cylinder is improved, and the residual powder is avoided to affect the taste of coffee.

[0070] Specifically, please refer to Figure 2 The pressing mechanism 20 has a liquid inlet channel 20a, and the powder receiving mechanism has a liquid outlet channel 10a; when the extraction device is in the compression state, the coffee powder cake 40 is clamped between the pressing mechanism 20 and the powder receiving mechanism, water is injected into the liquid inlet channel 20a to extract the coffee powder cake 40, and the extracted liquid is output from the liquid outlet channel 10a.

[0071] It can be understood that when the extraction device is in the compression state, the coffee powder in the receiving cylinder 100 is compressed into the coffee powder cake 40, and the coffee powder cake 40 is clamped between the pressing mechanism 20 and the powder receiving mechanism. At this time, hot water of a certain temperature is pumped from the liquid inlet channel 20a on the pressing mechanism 20, the hot water flows through the coffee powder cake 40 to extract, and the extracted coffee liquid flows out from the liquid outlet channel 10a.

[0072] In this embodiment, the number of the liquid inlet channel 20a and the liquid outlet channel 10a is one. In other embodiments, the number of the liquid inlet channel 20a and the liquid outlet channel 10a can also be at least two, and each liquid inlet channel 20a and each liquid outlet channel 10a is uniformly distributed.

[0073] In this embodiment, the powder receiving cylinder of the powder receiving mechanism, the first pushing body 210 and the second pushing body are respectively provided with liquid inlet holes, and each liquid inlet hole is communicated and forms a liquid inlet channel 20a.

[0074] Please refer to Figure 2 The extraction device further comprises a filter screen 30 with a plurality of filter holes, and the bottom side of the pressing mechanism 20 and the top side of the second pushing assembly 300 are respectively provided with the filter screen 30.

[0075] It should be noted that in the extraction process of the coffee liquid, when the hot water flows through the coffee powder cake 40 through the liquid inlet channel 20a, residues will be mixed into the extracted liquid. By respectively arranging the filter screen 30 on the bottom side of the pressing mechanism 20 and the top side of the second pushing assembly 300, the residues in the extraction process can be filtered, so that the impurities in the extracted coffee liquid are less.

[0076] In this embodiment, the material of the filter screen 30 is stainless steel mesh, which has high hardness and is not easy to deform. In other embodiments, the material of the filter screen 30 can also be aluminum or other materials.

[0077] Please refer to Figure 3 and Figure 6 The pressing mechanism 20 comprises a pressing body 21, and the pressing body 21 is provided with a liquid inlet channel 20a.

[0078] In the embodiment, the pressing body 21 is in a cylindrical shape. In other embodiments, the pressing body 21 can also be in a square tube shape or other shapes.

[0079] Further, please refer to Figure 3 and Figure 6 The pressing mechanism 20 further comprises a second sealing member 22, and the outer wall of the pressing body 21 is provided with a second groove for accommodating the second sealing member 22.

[0080] It can be understood that by arranging the second groove on the outer wall of the pressing body 21 and accommodating the second sealing member 22 in the second groove, the outer wall of the pressing body 21 and the inner wall of the receiving cylinder 100 can be better sealed.

[0081] In the embodiment, the second sealing member 22 and the second groove are both in a circular ring shape and the number is one. In other embodiments, the number of the second sealing member 22 and the second groove can also be at least two and be arranged one by one in a one-to-one correspondence, and each second groove can be arranged in a height direction of the pressing body 21.

[0082] Please refer to Figure 1 An embodiment of the coffee machine comprises the above-mentioned extraction device.

[0083] It should be noted that the above-mentioned coffee machine comprises the extraction device, and further comprises a grinding device or other components.

[0084] The above-mentioned coffee machine, the extraction device can improve the situation that the coffee powder cake 40 is insufficiently extracted due to low temperature at the bottom, and at the same time, the situation that residual powder cannot be removed in the receiving cylinder is improved.

[0085] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description simple, all possible combinations of the technical features in the above-mentioned embodiments are not described, however, as long as the combination of the technical features does not exist contradictory, it should be considered as the scope of the present application.

[0086] The above-mentioned embodiments only express several implementation manners of the present application, and the description is more specific and detailed, but it should not be understood as a limitation on the scope of the patent. It should be noted that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are all within the scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. A receiving mechanism (10), characterized in that, include: A receiving cylinder (100) is used to load coffee powder cakes (40). The first feeding assembly (200) is movably disposed within the receiving cylinder (100); The second feeding component (300) is movably inserted through the first feeding component (200); when the second feeding component (300) pushes out the coffee powder cake (40), it can drive the first feeding component (200) to push the coffee powder cake (40). When the receiving mechanism (10) is in the initial position, the top side of the first pushing component (200) is lower than the top side of the receiving cylinder (100) and higher than the top side of the second pushing component (300). A cavity with a stepped bottom is formed in the receiving cylinder (100). Coffee powder can be pressed into a coffee powder cake (40) with a stepped bottom in the receiving cylinder (100). When the receiving mechanism (10) is in the ejection position, the top side of the first pushing component (200) is flush with the top side of the second pushing component (300). The second pushing component (300) moves upward and drives the first pushing component (200) to move upward together, so as to push the stepped coffee powder cake (40) above the opening of the receiving cylinder and push the bottom of the stepped coffee powder cake (40) from the stepped shape to the flat shape.

2. The receiving mechanism (10) according to claim 1, characterized in that, The first feeding assembly (200) includes a first feeding body (210), which is disposed inside the receiving cylinder (100) and is movable along a first direction, which is the height direction of the receiving cylinder (100).

3. The receiving mechanism (10) according to claim 2, characterized in that, The first pusher assembly (200) further includes a first seal (220), and the outer wall of the first pusher body (210) is provided with a first groove for accommodating the first seal (220).

4. The receiving mechanism (10) according to claim 2, characterized in that, The first pusher body (210) is provided with an avoidance groove (211) in the first direction for the second pusher assembly (300) to pass through.

5. The receiving mechanism (10) according to claim 4, characterized in that, The second pusher assembly (300) includes a second pusher body, which is movably disposed in the clearance groove (211) along the first direction.

6. The receiving mechanism (10) according to claim 5, characterized in that, The second pusher body includes a push-out part (311) and a push rod (312) connected to the push-out part (311). The outer wall of the push rod (312) is provided with a limiting part (313). The limiting part (313) and the push-out part (311) are spaced apart in the first direction. The push rod (312) is movably inserted through the relief groove (211) along the first direction, and both the limiting part (313) and the push-out part (311) are limited to outside the relief groove (211).

7. An extraction apparatus, characterized in that, include: The receiving mechanism (10) as described in any one of claims 1-6; The pressing mechanism (20) moves in a direction that is closer to or farther from the receiving mechanism (10); When the extraction device is in the pressing state, the pressing mechanism (20) is pressed down to the pressing station, and the receiving mechanism (10) is located at the initial station; when the extraction device is in the ejection state, the pressing mechanism (20) is disengaged from the receiving mechanism (10), and the receiving mechanism (10) is located at the ejection station.

8. The extraction apparatus according to claim 7, characterized in that, The pressing mechanism (20) has a liquid inlet channel (20a), and the powder receiving mechanism has a liquid outlet channel (10a). When the extraction device is in the pressing state, the coffee powder cake (40) is sandwiched between the pressing mechanism (20) and the powder receiving mechanism. Water is injected into the liquid inlet channel (20a) to extract the coffee powder cake (40), and the extract is output from the liquid outlet channel (10a).

9. The extraction apparatus according to claim 8, characterized in that, The extraction device also includes a filter screen (30) with a plurality of filter holes, and the filter screen (30) is provided on the bottom side of the pressing mechanism (20) and the top side of the second pushing assembly (300).

10. The extraction apparatus according to claim 8, characterized in that, The pressing mechanism (20) includes a pressing body (21), and the pressing body (21) is provided with the liquid inlet channel (20a).

11. The extraction apparatus according to claim 8, characterized in that, The pressing mechanism (20) also includes a second seal (22), and the outer wall of the pressing body (21) is provided with a second groove for accommodating the second seal (22).

12. A coffee machine, characterized in that, Includes the extraction apparatus as described in any one of claims 7-11.

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