Coffee extractor and coffee machine
By setting a filter structure between the first pipeline or the first pipeline of the coffee extractor and the brewing container, the problem of easy blockage of the pressure relief pipe line is solved, and the pressure relief process is smooth.
Patent Information
- Application Number
- CN202421645315.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-11
- Publication Date
- 2025-06-06
- Estimated Expiration
- 2034-07-11
AI Technical Summary
In existing coffee extractors, the pressure relief pipeline is easily blocked by coffee powder, resulting in poor pressure relief.
A filter structure, such as a filter mesh, is provided between the first pipeline or the first pipeline of the coffee extractor and the brewing container, for filtering the liquid entering the first pipeline and preventing the coffee powder from entering the pressure relief pipeline.
Through the setting of the filter structure, the coffee powder is effectively prevented from entering the pressure relief pipeline, avoiding the blockage of the pressure relief pipeline, and ensuring the smoothness of the pressure relief process.
Smart Images
Figure CN222942160U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of coffee equipment, and in particular to a coffee extractor and a coffee machine. Background Art
[0002] A coffee extractor passes hot water through coffee powder to extract the solutes (such as caffeine, sugar, oil, etc.) in the coffee powder to form coffee.
[0003] In some typical coffee extractors, the coffee powder needs to be pushed out after brewing and extraction. Before pushing out the coffee powder, the internal pressure needs to be released through a pressure relief pipe. During the pressure relief, the coffee powder can easily enter the pressure relief pipe, causing blockage of the pressure relief pipe. Utility Model Content
[0004] The utility model provides a coffee extractor and a coffee machine, which are used to solve the defect that the pressure relief pipeline is easily blocked in the prior art.
[0005] The first aspect of the utility model provides a coffee extractor, comprising: a brewing container, a brewing head, a first pipeline, a second pipeline and a filtering structure, wherein the brewing container has a brewing chamber, the brewing chamber is provided with a connecting port, the brewing head can reciprocate relative to the brewing chamber, and the brewing head is provided with a drain port; the first pipeline is connected to the connecting port, the second pipeline is connected to the drain port, and the second pipeline is used for draining; the filtering structure is arranged in the first pipeline or between the first pipeline and the brewing container, so as to filter the liquid entering the first pipeline.
[0006] According to the coffee extractor provided by the utility model, the first pipeline includes a joint part and a transition part, one end of the joint part is connected to one end of the transition part, the other end of the joint part is communicated with the outside, and the other end of the transition part is connected to the connection port.
[0007] According to the coffee extractor provided by the utility model, a fixing frame is connected to one end of the adapter portion close to the brewing container, and the fixing frame is connected to the brewing container.
[0008] According to the coffee extractor provided by the utility model, the inlet end of the joint part has an interface structure, and the interface structure is used to connect to the water inlet component, so that the first pipeline is configured as a water inlet pipeline.
[0009] According to the coffee extractor provided by the utility model, the joint part and the adapter part are integrally arranged.
[0010] According to the coffee extractor provided by the utility model, the connecting port is provided with a connecting portion, and the first pipeline is connected to the connecting portion; wherein the connecting portion has a flow channel therein, and the flow channel is used to connect the brewing chamber with the first pipeline, and the filtering structure is arranged in the flow channel.
[0011] According to the coffee extractor provided by the utility model, the filtering structure is filled in the flow channel.
[0012] According to the coffee extractor provided by the utility model, the filtering structure includes a filter screen, the filter screen is installed in the flow channel, and the pore size of the filter screen is 0.1 mm-1 mm.
[0013] According to the coffee extractor provided by the utility model, part of the tube body of the first pipeline extends into the flow channel and is sealed and connected to the flow channel.
[0014] According to the coffee extractor provided by the utility model, the filter net comprises a mesh tube portion and a tube mouth portion, the mesh tube portion and the tube mouth portion are integrally arranged, and filter holes are arranged on the mesh tube portion.
[0015] According to the coffee extractor provided by the utility model, the connecting part is connected to the bottom of the brewing container.
[0016] The second aspect of the utility model provides a coffee machine, comprising a coffee extractor as described in any one of the above items, a liquid supply system, a liquid drainage system and a waste grounds collection system; the liquid supply system is connected to the coffee extractor to input extraction liquid into the coffee extractor through the first pipeline; the liquid drainage system is connected to the coffee extractor to drain liquid through the second pipeline; the waste grounds collection system is connected to the coffee extractor to collect coffee grounds and waste liquid after extraction.
[0017] The utility model provides a coffee extractor, which provides a filtering structure in a first pipeline or between the first pipeline and a brewing container, so that when the first pipeline is configured as a pressure relief pipeline, coffee powder can be prevented from entering the pressure relief pipeline and clogging it.
[0018] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0020] Figure 1 It is a schematic cross-sectional structural diagram of a coffee extractor provided by the utility model.
[0021] Figure 2 The utility model provides Figure 1 A schematic diagram of the enlarged structure at point A in the middle.
[0022] Figure 3 It is a schematic diagram of the explosion structure of the coffee extractor provided by the utility model.
[0023] Figure 4 The utility model is a schematic diagram of the structure of the filter screen in the coffee extractor.
[0024] Reference numerals:
[0025] 10. Brewing container; 11. Brewing chamber; 12. Connection port; 20. First pipeline; 21. Joint; 22. Adapter; 221. Fixing frame; 30. Filter structure; 31. Net tube; 32. Tube mouth; 40. Connection part; 41. Flow channel; 50. Brewing head; 60. Pressure valve; 70. Second pipeline; 80. Connection seat. DETAILED DESCRIPTION
[0026] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described clearly and completely in conjunction with the drawings in the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0027] In the description of the embodiments of the present utility model, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the embodiments of the present utility model. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.
[0028] In the description of the embodiments of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.
[0029] In the embodiments of the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.
[0030] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model embodiment. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.
[0031] After the coffee powder is extracted, it needs to be pushed out, and pressure relief is required before the coffee powder is pushed out. In the related art, the pressure in the brewing chamber is often directly discharged through a pressure relief pipeline, and during the discharge process, the coffee powder is likely to cause the pressure relief pipeline to be blocked.
[0032] Regarding the problems in related technologies, such as Figure 1-Figure 2 As shown, this embodiment provides a coffee extractor, including a brewing container 10, a brewing head 50, a first pipeline 20, a second pipeline 70 and a filtering structure 30. The brewing container 10 has a brewing chamber 11, and the brewing head can reciprocate relative to the brewing chamber 11. The brewing head 50 is provided with a drain port, and the brewing chamber 11 is provided with a connecting port 12; the first pipeline 20 is connected to the connecting port 12, and the second pipeline 70 is connected to the drain port, and the second pipeline 70 is used for draining; the filtering structure 30 is provided between the first pipeline 20 or the second pipeline 20 and the brewing container 10, so as to filter the liquid entering the first pipeline 20. When the pressure is released, the coffee powder in the brewing chamber 11 will be discharged through the pressure relief pipe along with the pressure relief liquid. This causes the coffee powder to enter the pressure relief pipe during the pressure relief process, causing blockage of the pressure relief pipe. In this embodiment, a filter structure 30 is provided in the first pipe 20 or between the first pipe 20 and the brewing chamber 11, and the filter structure 30 is used to filter the pressure relief discharge water, thereby avoiding blockage of the first pipe 20 by the coffee powder.
[0033] In a specific embodiment, the filter structure 30 can be disposed in the first pipeline 20. For example, the filter structure 30 is disposed at the end of the first pipeline 20 close to the connection port 12 to filter the liquid entering the first pipeline 20. Of course, the filter structure 30 can also be disposed between the first pipeline 20 and the connection port 12 to filter the liquid entering the first pipeline 20.
[0034] It is understandable that during the extraction process, the brewing head 50 is located in the brewing chamber 11. When the coffee powder is extracted, the interior of the brewing chamber 11 is in a high temperature and high pressure environment, and the coffee powder is compressed to form a powder cake-like structure, and then water or hot water is introduced for soaking. After soaking, the extraction is completed by compression to obtain coffee liquid and powder residue. The coffee liquid is discharged through the discharge port, and the powder residue is pushed out. Pressure relief is required before the powder residue is pushed out. In this embodiment, the first pipeline 20 is configured as a pressure relief pipeline, so that the pressure relief liquid in the brewing chamber 11 can be discharged during pressure relief, thereby ensuring that the discharged pressure relief liquid is filtered through the filter structure 30 to avoid blockage of the first pipeline 20.
[0035] In a specific configuration, the filter structure 30 is used to allow the liquid during pressure relief to enter the first pipeline 20 after passing through the filter structure 30, thereby filtering the pressure relief liquid. For example, the filter structure 30 may be a filter tube, and the boiler tube is disposed between the first pipeline 20 and the brewing container 10 to filter the pressure relief liquid. Specifically, the filter tube has a tube body structure and a filter element structure, and the filter element is disposed in the tube body structure to filter the pressure relief liquid.
[0036] In some embodiments, the brewing container 10 has a water inlet, a water outlet and a pressure relief port, the water inlet is used to input hot water, the water outlet is used to output the extracted coffee liquid, and the pressure relief port is used to release the high pressure in the brewing container 10. A brewing head 50 is provided at one end of the water outlet, and the brewing head 50 is sealed and connected to the brewing container 10. A pressure valve 60 is provided on the brewing head 50, and a second pipeline 70 is connected to the pressure valve 60, and the coffee liquid is output through the second pipeline 70. Pipelines are connected at the water inlet and the pressure relief port respectively to realize water input and pressure relief liquid discharge, wherein a filter structure 30 is provided at the connecting pipe at the pressure relief port or between the connecting pipe and the pressure relief port.
[0037] In specific examples, such as Figure 1 , Figure 3 As shown, a connection seat 80 is connected to the bottom of the brewing container 10, a sealing ring is provided on one end of the brewing head 50, and the brewing head 50 is inserted into the brewing chamber 11 and located at the upper part of the brewing chamber 11. The brewing head 50 can reciprocate relative to the brewing chamber 11, thereby realizing pressurized extraction of coffee powder. Among them, the second pipeline 70 connected to the pressure valve 60 is a silicone tube.
[0038] In other embodiments, Figure 1 , Figure 3 As shown, the water inlet and the connection port 12 in the brewing container 10 share a connection port and a pipeline. Figure 1 As shown, the connection port 12 is also a water inlet. When water needs to be connected, one end of the first pipeline 20 is connected to the water inlet component, so that the first pipeline 20 is a water inlet pipeline. When pressure relief is required, the first pipeline 20 is connected to the outside atmosphere, so that the first pipeline 20 is a pressure relief pipeline.
[0039] Specifically, the pipe body of the first pipe 20 can be made of hard plastic material, which is easy to shape and design and can achieve stable connection. Of course, it can also be made of metal material to improve its overall stability and rigidity.
[0040] According to an embodiment provided by the utility model, the first pipeline 20 includes a joint part 21 and a transition part 22, one end of the joint part 21 is connected to one end of the transition part 22, the other end of the joint part 21 is communicated with the outside, and the other end of the transition part 22 is connected to the connection port 12. The structure and occupied space of the coffee extractor need to be designed to be small to facilitate other structural designs. In this embodiment, the first pipeline 20 is configured as two separate connected parts to facilitate assembly.
[0041] It is understandable that one end of the first pipeline 20 needs to extend into the shell of the extractor to connect with the brewer, and the other end needs to be connected to the outside, which makes it more difficult to assemble and design the position of the components if the first pipeline 20 is designed as an integral structure. In this embodiment, the first pipeline 20 is divided into two sections, one section is a joint portion 21 for installing most of the overall structure to the outside of the shell, and the other section is a transition portion 22 for achieving the connection between the joint portion 21 and the brewing container 10.
[0042] In a specific embodiment, the adapter 22 is plugged into the connector 21, and a sealing ring is provided at the plugging position to achieve sealing between the adapter 22 and the plugging portion. The plugging method facilitates the connection and assembly of the adapter 22 and the plugging portion, and is also convenient for disassembly and maintenance. Of course, the adapter 22 and the connector 21 can also be connected by other connection methods, such as clamping, bolting, etc.
[0043] In practical use, the joint part 21 and the adapter part 22 are both constructed as an "L"-shaped tubular structure, wherein the end of the joint part 21 located outside protrudes from the housing, which makes it easy for the joint part 21 to be connected to an external device. One end of the adapter part 22 is integrally inserted into the joint part 21, so that the plug-in end of the adapter part 22 can move along the pipe in the joint part 21. It can be understood that the brewing chamber 11 will move during the extraction and discharge of the powder residue, and then during the movement, the adapter part 22 and the joint part 21 always maintain a plug-in connection state.
[0044] In a specific embodiment, the joint portion 21 and the adapter portion 22 are integrally arranged to form an overall tubular structure. This method has higher stability than the joint portion 21 and the adapter portion 22 that are separately connected.
[0045] According to an embodiment of the utility model, a fixing frame 221 is connected to one end of the adapter 22 close to the brewing container 10, and the fixing frame 221 is connected to the brewing container 10. The first pipeline 20 needs to be fed with high-pressure pressure relief liquid and gas when relieving pressure, which requires the first pipeline 20 to remain stable. In this embodiment, the adapter 22 is connected to the brewing container 10 through the fixing frame 221, ensuring the stability of the assembly welding part, so that the first pipeline 20 can be made more stable.
[0046] It can be understood that the first pipeline 20 is divided into a joint portion 21 and an adapter portion 22. The adapter portion 22 is used to connect to the brewing container 10. The stability of the adapter portion 22 will affect the stability of the entire first pipeline 20. In the specific embodiment, the fixing frame 221 is integrally arranged with the adapter portion 22. The fixing frame 221 is provided with a threaded connection hole. A connecting column is correspondingly provided on the outer wall of the brewing container 10. The fixing frame 221 is connected to the connecting column by bolts, thereby ensuring the stability of the adapter portion 22.
[0047] According to an embodiment of the present invention, the inlet end of the joint part 21 has an interface structure, and the interface structure is used to connect to the water inlet component, so that the first pipeline 20 is configured as a water inlet pipeline. The hot water input into the brewer is realized by connecting to the water inlet component, which reduces the complexity of the overall structure. Among them, the inlet end of the joint part 21 is the end used to connect to the external water supply system.
[0048] It is understandable that the water inlet and the connection port 12 on the conventional brewing container 10 are independently arranged. This method can always keep the water inlet unobstructed. In the embodiment of the utility model, the filter structure 30 is arranged so that the first pipeline 20 will not be blocked, thereby realizing the switching of the pressure relief pipeline and the water inlet pipeline, avoiding the processing of multiple pipelines and openings, and reducing the processing difficulty and processing cost of the brewer. Moreover, there will be no pressure relief when the water is inlet, and no water inlet operation will be performed when the pressure is relieved, so this configuration will not affect the use of the brewer. Moreover, the filter net can filter the incoming water and play a buffering role to avoid the impact of the incoming water on the powder cake in the brewing chamber 11.
[0049] According to an embodiment provided by the utility model, the connection port 12 is provided with a connection part 40, and the first pipeline 20 is connected to the connection part 40; wherein, the connection part 40 has a flow channel 41 therein, and the flow channel 41 is used to communicate the brewing chamber 11 with the first pipeline 20, and the filter structure 30 is arranged in the flow channel 41. The connection part 40 is connected to the connection port 12, so that the flow channel 41 is communicated with the brewing chamber 11. In this embodiment, the connection part 40 is used as the connection port of the first pipeline 20, which is conducive to the connection of the first pipeline 20 and the maintenance of the filter structure 30.
[0050] It is understandable that the filter structure 30 is disposed in the flow conduction, so that when the filter structure 30 needs to be maintained, it can be achieved by disassembling the connecting portion 40 or directly disassembling the filter structure 30, making the maintenance of the filter structure 30 more convenient.
[0051] In the specific configuration, the connection part 40 is integrally configured with the brewer, one end of the connection part 40 extends out, and the filter structure 30 is located in the flow channel 41 in the connection part 40. The distance of the connection part 40 extending out is short, which makes it easy to take out the filter structure 30 for maintenance.
[0052] In a specific configuration, the filter structure 30 is filled in the flow channel 41 .
[0053] In this embodiment, the process structure includes a filter filler, which is filled in the flow channel 41, so that the filter filler can filter the pressure relief liquid. Specifically, the filter filler can be a filler material with a void structure, such as activated carbon, foam plastic, filter cloth and the like.
[0054] In another embodiment, the filter structure 30 can also be a filter screen, which is installed in the flow channel 41, and the pore size of the filter screen is 0.1 mm-1 mm. The filter screen is easy to prepare and facilitates later maintenance. For example, the pore size of the filter screen is 0.3 mm. This embodiment can filter most coffee powder by limiting the pore size of the filter screen, thereby avoiding pipeline blockage.
[0055] It is understandable that the filter is directly installed in the flow channel 41 to achieve filtering of the pressure relief liquid. When the filter needs to be maintained, the filter can be maintained by removing the adapter 22 and then taking out the filter from the flow channel 41.
[0056] In a specific example, the filter net includes a net tube portion 31 and a tube mouth portion 32, the net tube portion 31 and the tube mouth portion 32 are integrally arranged, a filter hole is opened on the net tube portion 31, and the outer diameter of the tube mouth portion 32 is slightly larger than the channel diameter of the flow channel 41. During installation, the tube mouth portion 32 abuts against the inner wall surface of the flow channel 41, so that the filter net is installed in the flow channel 41.
[0057] Specifically, the filter screen may be a wire mesh structure or a hard plastic structure.
[0058] When specifically connected, part of the tube body of the first pipeline 20 extends into the flow channel 41 and is sealed and connected to the flow channel 41. That is, one end of the adapter 22 is inserted into the flow channel 41, and the adapter 22 is connected to the flow channel 41. Specifically, a sealing ring is provided on one end of the adapter 22, and after the adapter 22 is inserted, the sealing ring is squeezed to achieve sealing between the adapter 22 and the flow channel 41. This method is convenient for assembly and disassembly.
[0059] In the specific configuration, the connection portion 40 is constructed as a right-angle elbow structure, the filter screen extends from the corner position to the straight section, and the main part of the filter screen is located in the flow channel 41. This method is convenient for the installation of the filter screen and can achieve sufficient filtration of the pressure relief liquid.
[0060] In actual application, one end of the adapter portion 22 extends into the flow channel 41 and abuts against the tube mouth portion 32 of the filter screen. The abutment enables the filter screen to be stably installed in the flow channel 41, thereby improving the stability of the filter screen assembly.
[0061] In a specific embodiment, the brewing container 10 is configured as a cylindrical structure, and the connecting portion 40 is connected to the bottom of the brewing container 10. The connection method of the bottom can achieve rapid pressure relief and facilitate the discharge of the liquid to be discharged in the brewing chamber 11.
[0062] The utility model also provides a coffee machine, including any one of the above embodiments to provide a coffee extractor, a liquid supply system, a liquid drainage system and a waste residue collection system; the liquid supply system is connected to the coffee extractor to input the extraction liquid into the coffee extractor through the first pipeline 20; the liquid drainage system is connected to the coffee extractor to drain the liquid through the second pipeline 70; the waste residue collection system is connected to the coffee extractor to collect the coffee residues and waste liquid after extraction.
[0063] It can be understood that in the above embodiment, the liquid supply system is mainly used to supply hot water (i.e., extraction liquid), and extraction is achieved by supplying hot water into the brewing container 10, the liquid discharge system is mainly used to discharge the extracted coffee liquid, and the waste grounds collection system is mainly used to collect the extracted coffee grounds and waste water.
[0064] Through the description of the above embodiments, those skilled in the art can clearly understand that each embodiment avoids coffee powder blocking the pressure relief pipeline during the pressure relief process by setting the filter. Furthermore, by configuring the first pipeline 20 as a water inlet pipeline, the overall structure is simplified, and the manufacturing cost and difficulty are reduced.
[0065] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.
Claims
1. A coffee extractor, characterized in that: include: A brewing container, wherein the brewing container has a brewing chamber, and the brewing chamber is provided with a connection port; A brewing head, the brewing head can reciprocate relative to the brewing chamber, and the brewing head is provided with a liquid discharge port; a first pipeline, the first pipeline being connected to the connection port; A second pipeline, the second pipeline is connected to the liquid discharge port, and the second pipeline is used for liquid discharge; A filtering structure is provided in the first pipeline or between the first pipeline and the brewing container to filter the liquid entering the first pipeline.
2. The coffee extractor according to claim 1, characterized in that: The first pipeline includes a joint part and a transition part, one end of the joint part is connected to one end of the transition part, the other end of the joint part is communicated with the outside, and the other end of the transition part is connected to the connection port.
3. The coffee extractor according to claim 2, characterized in that: A fixing frame is connected to one end of the adapter portion close to the brewing container, and the fixing frame is connected to the brewing container.
4. The coffee extractor according to claim 2, characterized in that: The inlet end of the joint part has an interface structure, and the interface structure is used to connect to the water inlet component so that the first pipeline is configured as a water inlet pipeline.
5. The coffee extractor according to claim 2, characterized in that: The joint portion and the adapter portion are integrally arranged.
6. The coffee extractor according to claim 1 or 2, characterized in that: The connection port is provided with a connection portion, and the first pipeline is connected to the connection portion; The connecting portion has a flow channel therein, the flow channel is used to connect the brewing chamber with the first pipeline, and the filtering structure is arranged in the flow channel.
7. The coffee extractor according to claim 6, characterized in that: The filter structure is filled in the flow channel.
8. The coffee extractor according to claim 6, characterized in that: The filter structure comprises a filter screen installed in the flow channel, and the pore size of the filter screen is 0.1 mm-1 mm.
9. The coffee extractor according to claim 8, characterized in that: The filter net comprises a net tube part and a tube mouth part, the net tube part and the tube mouth part are arranged in one piece, and the net tube part is provided with filtering holes.
10. The coffee extractor according to claim 6, characterized in that: Part of the first pipeline extends into the flow channel and is sealed and connected to the flow channel.
11. A coffee machine, characterized in that: include: The coffee extractor according to any one of claims 1 to 10; a liquid supply system, the liquid supply system being connected to the coffee extractor to input extraction liquid into the coffee extractor through the first pipeline; a drainage system, the drainage system being connected to the coffee extractor to drain liquid through the second pipeline; A waste residue collection system is connected to the coffee extractor to collect coffee residues and waste liquid after extraction.