Manual coffee machine

Abstract

The utility model provides a manual coffee machine, which comprises an outer cup body, an inner cup body, an inner cup body and an outer cup body, wherein the outer cup body is internally provided with a cup cavity which is used for containing liquid and is provided with an opening at one end; the inner container can be inserted into and pulled out of the outer cup body from the open end of the cup cavity, and an inner container cavity is formed in the inner container; the powder cup is arranged at the bottom of the inner container, a powder cup cavity used for containing brewing materials is formed in the powder cup, a plurality of first liquid passing holes are formed in the bottom of the inner container, and the powder cup cavity is communicated with the inner container cavity through the first liquid passing holes; a plurality of second liquid passing holes are formed in the bottom of the powder cup, and the cup cavity is communicated with the powder cup cavity through the second liquid passing holes; wherein a plurality of first sealing rings are arranged on the peripheral side of the inner container, and when the inner container is inserted into the outer cup body, a closed space is formed between the inner container and the outer cup body through the first sealing rings; when the inner container is pressed downwards relative to the outer cup body, positive pressure is formed in the closed space so that liquid in the outer cup body can be pressed into the inner container through the second liquid passing hole and the first liquid passing hole, the inner container does not need to be taken out during drinking, an additional container does not need to be prepared, and convenience is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of coffee machines, and more specifically, particularly relates to a manual coffee machine. Background Art

[0002] With the continuous improvement of living standards, people's pursuit of quality of life has been continuously upgraded, and coffee has gradually become a popular drink; and in order to make a cup of coffee, you need to use coffee machine equipment.

[0003] For example, the Chinese invention patent with patent number 201910918946.9 provides a manual pressure coffee machine, which is provided with an outer cup body, a cup cavity, an inner liner, an inner liner cavity and a driving device. When in use, the inner liner is placed in the outer cup body, the coffee powder is placed in the inner liner cavity and hot water is added for brewing, and then the inner liner is taken out of the cup cavity, and the brewed coffee in the inner liner cavity will flow into the cup cavity and can be drunk; however, traditional manual coffee machines usually adopt a split structure, and in actual use, their operation process is often cumbersome; and, after the coffee is brewed, the inner liner needs to be taken out, resulting in its lack of convenience. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a manual coffee machine to solve the technical problem that in the prior art, traditional manual coffee machines usually adopt a split structure, and in actual use, their operation process is often cumbersome; and after the coffee is brewed, the inner tank needs to be taken out, resulting in a lack of convenience.

[0005] The purpose and effect of a manual coffee machine of the utility model are achieved by the following specific technical means:

[0006] A manual coffee machine, comprising:

[0007] An outer cup body, wherein the outer cup body is provided with a cup cavity with one end open for containing liquid;

[0008] The inner liner can be inserted into and pulled out of the outer cup body from the opening end of the cup cavity, and an inner liner cavity is provided in the inner liner;

[0009] A powder cup is arranged at the bottom of the inner container, wherein a powder cup cavity for containing brewing materials is provided in the powder cup, a plurality of first liquid holes are provided at the bottom of the inner container, and the powder cup cavity is connected with the inner container cavity through the first liquid holes; a plurality of second liquid holes are provided at the bottom of the powder cup, and the cup cavity is connected with the powder cup cavity through the second liquid holes;

[0010] A plurality of first sealing rings are arranged around the inner container. When the inner container is inserted into the outer cup, the first sealing rings form a closed space between the inner container and the outer cup.

[0011] When the inner container is pressed downward relative to the outer cup body, a positive pressure is formed in the enclosed space so that the liquid in the outer cup body can be pressed into the inner container through the second liquid passage hole and the first liquid passage hole.

[0012] In a preferred embodiment, a detachable filter screen is provided between the powder cup and the inner container.

[0013] In a preferred embodiment, a second mounting groove is provided at the bottom of the inner tank, a second sealing ring is arranged in the second mounting groove, the second sealing ring contacts the top of the powder cup, a fixing ring is also provided in the second mounting groove, a plurality of clamping columns are arranged on the inner side of the fixing ring, a plurality of clamping grooves are provided on the peripheral side of the filter screen, and the clamping columns are clamped in the clamping grooves.

[0014] In a preferred embodiment, a plurality of limiting columns are arranged on the circumferential side of the fixed ring, and a plurality of limiting grooves are correspondingly opened on the inner wall of the powder cup cavity, and the limiting columns are detachably clamped in the limiting grooves.

[0015] In a preferred embodiment, the manual coffee machine further comprises an anti-scalding cover arranged on the outside of the outer cup body, a mounting ring is arranged on the outer periphery of the inner container, and the top of the anti-scalding cover is fixedly connected to the mounting ring by screws.

[0016] In a preferred embodiment, a first internal thread is provided on the inner side of the anti-scalding cover, and a first external thread detachably connected to the first internal thread is provided on the top of the outer cup body.

[0017] In a preferred embodiment, the manual coffee machine further comprises a closing cover which covers the inner container, a second outer thread is arranged on the top of the inner container, and a second inner thread which is detachably connected to the second outer thread is arranged on the inner wall of the closing cover.

[0018] In a preferred embodiment, a third sealing ring is arranged in the closing cover, and the third sealing ring is in contact with the top of the inner container.

[0019] In a preferred embodiment, a plurality of first installation grooves are provided on the peripheral side of the inner container, and the first sealing ring is clamped in the first installation grooves.

[0020] Compared with the prior art, the utility model has the following beneficial effects:

[0021] It adopts the working principle of positive pressure brewing. The volume of the enclosed space can be reduced by pressing the inner tank downward relative to the outer cup body, forming a certain positive pressure in the enclosed space, thereby driving the liquid (boiling water) in the outer cup body to pass through the second liquid hole into the powder cup to brew the brewing material (coffee powder) to obtain coffee liquid, and then the coffee liquid passes through the first liquid hole and is pressed from the powder cup into the inner tank. This positive pressure extraction method can not only better control the water output and water pressure to ensure that each cup of coffee has an excellent taste, but also greatly reduce the user's operating difficulty. The entire brewing process can be easily completed without too much effort. In addition, the inner tank does not need to be taken out when drinking, which solves the problem that traditional coffee machines require the inner tank to be taken out before drinking, thereby improving the convenience of use. At the same time, there is no need to prepare additional containers, and users can drink fresh coffee directly in the inner tank, further improving portability and usage experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the structure of the manual coffee machine of the utility model after assembly;

[0023] Figure 2 It is a schematic diagram of the structure of the manual coffee machine of the utility model after being unfolded;

[0024] Figure 3 It is a front view of the manual coffee machine of the utility model;

[0025] Figure 4 yes Figure 3 Sectional view of AA in the middle;

[0026] Figure 5 It is a schematic diagram of the structure of the manual coffee machine of the utility model after the middle inner tank and the powder cup are assembled;

[0027] Figure 6 yes Figure 5 Schematic diagram of the structure after splitting;

[0028] Figure 7 yes Figure 6 A magnified schematic diagram of area a in the middle;

[0029] Figure 8 It is a schematic diagram of the structure of the manual coffee machine of the utility model after the middle and outer cup bodies and the inner tank are assembled;

[0030] Fig. 9 yes Figure 8 Schematic diagram of the structure after splitting;

[0031] Fig.10 It is a schematic diagram of the structure of the manual coffee machine of the utility model after the middle inner tank and the closing cover are assembled;

[0032] Fig.11 yes Fig.10Schematic diagram of the structure after decomposition.

[0033] In the figure, the corresponding relationship between the component names and the figure numbers is as follows:

[0034] 11. Outer cup body; 12. Cup cavity; 13. Inner liner; 14. Powder cup; 15. Inner liner cavity; 16. Powder cup cavity; 17. First installation groove; 18. Enclosed space; 19. First sealing ring; 20. Filter screen; 21. Second installation groove; 22. Second sealing ring; 23. Fixed ring; 24. Clamping column; 25. Clamping groove; 26. Limiting column; 27. Limiting groove; 28. Second liquid hole; 29. ​​First liquid hole; 30. Anti-scalding cover; 31. Installation ring; 32. First internal thread; 33. First external thread; 34. Second external thread; 35. Closing cover; 36. Second internal thread; 37. Third sealing ring. DETAILED DESCRIPTION

[0035] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the technical solution of the present invention, but cannot be used to limit the protection scope of the present invention.

[0036] Example:

[0037] As attached Figures 1 to 11 As shown:

[0038] The utility model provides a manual coffee machine, including a two-layer structure of an outer cup body 11 and an inner liner 13. The outer cup body 11 is provided with a cup cavity 12 with one end open for containing liquid (such as boiled water or other liquid suitable for brewing beverages such as coffee), and the inner liner 13 is provided with an inner liner cavity 15. The inner liner 13 can be freely inserted and pulled out from the open end of the cup cavity 12, providing a flexible and convenient operation method for users. A powder cup 14 is provided at the bottom of the inner liner 13, and a powder cup cavity 16 for containing brewing materials is provided in the powder cup 14. For example, when brewing coffee, the user only needs to pour the coffee powder into the powder cup cavity 16. A plurality of first liquid holes 29 are provided at the bottom of the inner liner 13, and the powder cup cavity 16 is connected to the inner liner cavity 15 through the first liquid holes 29; a plurality of second liquid holes 28 are provided at the bottom of the powder cup 14, and the cup cavity 12 is connected to the powder cup cavity 16 through the second liquid holes 28.

[0039] A plurality of first sealing rings 19 are arranged around the inner liner 13. In this embodiment, a plurality of first mounting grooves 17 are provided around the inner liner 13. The first sealing rings 19 are clamped in the first mounting grooves 17. It can be understood that in other embodiments, the first sealing rings 19 can also be integrally formed with the inner liner 13 or bonded to the inner liner 13. When the inner liner 13 is inserted into the outer cup body 11, the first sealing ring 19 forms a closed space 18 between the inner liner 13 and the outer cup body 11 (specifically, the cup cavity below the first sealing ring 19).

[0040] When the inner container 13 is pressed downward relative to the outer cup body 11, a positive pressure is formed in the closed space 18, so that the liquid in the outer cup body 11 is pressed into the inner container 13 through the second liquid hole 28 and the first liquid hole 29. Specifically, the volume of the closed space 18 can be reduced by the action of the inner container 13 pressing downward relative to the outer cup body 11, and a certain positive pressure is formed in the closed space 18, so that the liquid (boiling water) in the outer cup body 11 is driven to pass through the second liquid hole 28 into the powder cup 14 to brew the brewing material (coffee powder) to obtain coffee liquid, and then the coffee liquid is pressed from the powder cup 14 into the inner container 13 through the first liquid hole 29.

[0041] Please refer to Figure 6 As shown, a plurality of second liquid holes 28 are provided at the bottom of the powder cup 14, and these second liquid holes 28 connect the powder cup cavity 16 with the external cup cavity 12. That is to say, during the coffee extraction process, the heated hot water will pass through these second liquid holes 28 and enter the powder cup cavity 16, fully contact and soak with the coffee powder, and finally form a rich coffee liquid; this not only ensures that the hot water can be evenly distributed in the entire coffee powder layer and give full play to the extraction potential of the coffee powder, but also effectively avoids the occurrence of local overheating or cold areas, making the entire extraction process more uniform and stable.

[0042] Please refer to Figure 3 and Figure 4 As shown, the bottom of the inner tank 13 is also provided with a plurality of first liquid holes 29, which connect the inner tank cavity 15 with the upper powder cup cavity 16; that is, during the coffee extraction process, the coffee liquid filtered by the filter 20 will enter the top inner tank cavity 15 through these first liquid holes 29, providing the user with the final drinking; ensuring the smooth flow of the coffee liquid, avoiding blockage or backlog during the extraction process. At the same time, the reasonable setting of the first liquid holes 29 ensures that the coffee liquid can flow into the inner tank cavity 15 evenly, presenting an ideal taste and temperature, and providing the user with a perfect cup of coffee.

[0043] This positive pressure extraction method can not only better control the water output and pressure to ensure that each cup of coffee has an excellent taste, but also greatly reduce the user's operating difficulty, and the entire brewing process can be completed without tedious effort; another highlight is that the inner tank 13 does not need to be taken out when drinking, and the user only needs to enjoy the freshly ground and brewed fresh coffee directly in the inner tank 13, which solves the problem that the traditional coffee machine must take out the inner tank before drinking, improves the convenience of use, and also eliminates the trouble of preparing additional containers, greatly improving the overall portability and usage experience.

[0044] Please refer to Figure 2 , Figure 5 and Figure 6As shown, a detachable filter 20 is provided between the powder cup 14 and the inner tank 13. By replacing the filter 20 of different specifications, different coffee tastes can be brewed, which is convenient for users to choose freely without having to buy multiple coffee machines or components. At the bottom of the inner tank 13, a second mounting groove 21 is provided, and a second sealing ring 22 is installed inside. The second sealing ring 22 contacts the top of the powder cup 14 to form a well-sealed connection; on the inner side of the second mounting groove 21, a fixing ring 23 is also provided, and on the inner side of the fixing ring 23, a plurality of clamping columns 24 are provided. These clamping columns 24 are respectively clamped in a plurality of corresponding clamping grooves 25 opened on the side of the filter 20, playing the role of fixing the filter 20. Through the arrangement of these structures, reliable sealing is achieved between the bottom of the inner tank 13 and the powder cup 14, ensuring that there will be no leakage of coffee liquid during the positive pressure extraction process; at the same time, the filter 20 is also firmly installed at the bottom of the inner tank 13, which can effectively intercept coffee grounds and ensure a high-quality taste when drinking.

[0045] Please refer to Figure 5 , Figure 6 and Figure 7 As shown, in addition to the above structure, a plurality of limiting posts 26 are also provided on the circumference of the fixing ring 23, and a plurality of limiting grooves 27 are correspondingly provided on the inner wall of the powder cup cavity 16. These limiting posts 26 can be detachably clamped in the corresponding limiting grooves 27, playing a role of limiting positioning; by connecting the powder cup 14 from the bottom of the inner container 13, so that the plurality of limiting posts 26 enter the plurality of limiting grooves 27 respectively, and then rotating the powder cup 14, the connection between the powder cup 14 and the inner container 13 can be completed; not only can the stable connection between the fixing ring 23 and the filter screen 20 be ensured, but also the position displacement due to vibration or external force during use can be prevented. At the same time, since the powder cup 14 is detachable, when cleaning or maintenance is required, the powder cup 14 can also be easily removed, which facilitates the disassembly and assembly of the entire device; both daily cleaning and maintenance and maintenance inspection under abnormal conditions can be well supported, which greatly improves the practicality and applicability of the product.

[0046] Please refer to Figure 8 and Fig. 9 As shown, in addition, the external structure of the entire coffee machine is configured, and an anti-scalding cover 30 is provided on the outer side of the outer cup body 11, which can effectively avoid the safety hazard of scalding the user due to excessive surface temperature during the coffee brewing process; and a mounting ring 31 is provided on the upper part of the inner tank 13, and the top of the anti-scalding cover 30 is fixedly connected to the mounting ring 31 by multiple screws, ensuring the stability of the entire anti-scalding cover 30; the thoughtful consideration in terms of safety also contributes to the overall beauty and coordination of the whole machine.

[0047] Please refer to Fig. 9As shown, at the same time, the interior of the anti-scalding cover 30 is also provided with a first internal thread 32, and the top of the outer cup body 11 is provided with a corresponding first external thread 33, and the two are detachably fixed by threaded connection; not only does it ensure the firm connection between the anti-scalding cover 30 and the outer cup body 11, but it also provides convenience for later maintenance and cleaning; if the user needs to clean or replace the anti-scalding cover 30, it can be removed from the outer cup body 11 by simply twisting it, which greatly improves the convenience of product use. At the same time, this detachable connection method also makes the overall structure of the entire coffee machine more modular, which is conducive to disassembly and maintenance, thereby further extending the service life of the product. Through the setting of the first internal thread 32 and the first external thread 33, not only the reliable fixation of the anti-scalding cover 30 is guaranteed, but also the actual use needs of the user are fully considered, and the product safety and easy maintainability are achieved.

[0048] Please refer to Fig.10 and Fig.11 As shown, in addition to the anti-scalding cover 30, a second external thread 34 is provided on the top of the inner tank 13, and the closing cover 35 is detachably connected to the second external thread 34 through the second internal thread 36 of its inner wall; the reliable fixation of the closing cover 35 is ensured, and the careful consideration of the product in terms of convenience of use is reflected; after the user finishes making coffee, there is no need to clean the inner tank 13 immediately, and the user only needs to cover the detachable closing cover 35 to bag the coffee and take it away, which not only prolongs the insulation time of the coffee, but also greatly improves the portability of the product, and effectively meets the needs of modern people for convenience and flexibility in their fast-paced lives. Users can enjoy delicious coffee anytime and anywhere, and the whole use process is more intimate and comfortable; at the same time, the detachable design of the second external thread 34 and the second internal thread 36 also provides great convenience for later cleaning and maintenance. The user only needs to simply remove the closing cover 35 to easily and thoroughly clean the inner tank 13, ensuring product hygiene and safety in use.

[0049] The setting of a detachable closing cover pays more attention to the convenience after use; when using the coffee machine, a detachable closing cover is provided on the top of the inner tank, so that the user does not need to clean it immediately after making the coffee. Just cover the cover and pack it in a bag and take it away. This not only prolongs the insulation time of the coffee, but also greatly improves the portability of the coffee machine, meets the needs of modern people for convenience and flexibility in their fast-paced lives, allows people to enjoy delicious coffee anytime and anywhere, and brings users a more comfortable and pleasant use experience.

[0050] Please refer to Figure 4 , Fig.10 and Fig.11As shown, a third sealing ring 37 is provided inside the closing cover 35, and the third sealing ring 37 is in close contact with the top of the inner liner 13, which not only ensures the tightness of the closing process, but also effectively prevents the loss of heat, and further prolongs the insulation time of the coffee; even in the process of repeated opening and closing, the third sealing ring 37 can continue to play a good sealing role, ensuring the freshness and taste quality of the coffee. At the same time, the existence of the third sealing ring 37 can also effectively block the entry of dust and impurities, providing reliable protection for the hygiene and safety of the coffee.

[0051] The specific usage and function of this embodiment are as follows: when in use, coffee powder is poured into the powder cup cavity 16 of the powder cup 14, and then the powder cup 14 is connected to the bottom of the inner container 13 through the cooperation of the limiting column 26 and the limiting groove 27; hot water is poured into the cup cavity 12 of the outer cup body 11, and then the inner container 13 is inserted into the cup cavity 12 of the outer cup body 11; then the outer cup body 11 is rotated, and the outer cup body 11 cooperates with the first internal thread 32 and the first external thread 33 to press the inner container 13 downward, and the second liquid hole 28 at the bottom of the powder cup 14 allows hot water to enter the powder. The cup cavity 16 is in full contact with the coffee powder to ensure that the hot water is evenly distributed, exert the extraction potential of the coffee powder, and make the extraction process uniform and stable; the first sealing ring 19 is used to divide the cup cavity 12 into a closed space 18 to generate positive pressure, driving the filtered coffee liquid from the powder cup 14 to be pressed into the inner tank 13, and the first liquid hole 29 at the bottom of the inner tank 13 allows the filtered coffee liquid to enter the inner tank cavity 15 for the user to drink. This positive pressure extraction method can better control the water output and water pressure, ensure the smooth flow of coffee liquid, and reduce the difficulty of user operation.

[0052] The inner tank 13 does not need to be taken out when drinking, and freshly ground and brewed coffee can be enjoyed directly in the inner tank 13, which improves convenience and portability. The second sealing ring 22 at the bottom of the inner tank 13 ensures reliable sealing with the powder cup 14 to prevent leakage of coffee liquid, and the filter 20 can intercept coffee grounds to ensure drinking taste; the anti-scalding cover 30 on the outside of the outer cup body 11 can avoid burns caused by excessive surface temperature when brewing coffee. It is detachably connected to the outer cup body 11 by threads, which is convenient for maintenance and cleaning, and also makes the overall structure more modular; the top of the inner tank 13 is detachably connected to the closing cover 35 by threads, which is convenient for users to cover and take away after making coffee, prolonging the insulation time, improving portability, and providing convenience for cleaning and maintenance; the third sealing ring 37 inside the closing cover 35 ensures tightness of the closure, prevents heat loss, ensures the freshness and taste of coffee, and can also block the entry of dust and impurities.

[0053] The embodiments described above are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention, and should be included in the protection scope of the present invention.

Claims

1. A manual coffee machine, characterized in that: include: An outer cup body (11), wherein the outer cup body (11) is provided with a cup cavity (12) with one end open for containing liquid; An inner liner (13), wherein the inner liner (13) can be inserted into and removed from the outer cup body (11) from the open end of the cup cavity (12), and an inner liner cavity (15) is provided in the inner liner (13); A powder cup (14) is arranged at the bottom of the inner container (13), wherein a powder cup cavity (16) for containing brewing materials is provided in the powder cup (14), and a plurality of first liquid holes (29) are provided at the bottom of the inner container (13), and the powder cup cavity (16) is communicated with the inner container cavity (15) through the first liquid holes (29); a plurality of second liquid holes (28) are provided at the bottom of the powder cup (14), and the cup cavity (12) is communicated with the powder cup cavity (16) through the second liquid holes (28); A plurality of first sealing rings (19) are arranged around the inner container (13). When the inner container (13) is inserted into the outer cup body (11), the first sealing rings (19) form a closed space (18) between the inner container (13) and the outer cup body (11). When the inner liner (13) is pressed downward relative to the outer cup body (11), a positive pressure is formed in the enclosed space (18), so that the liquid in the outer cup body (11) can be pressed into the inner liner cavity (15) through the second liquid passage hole (28) and the first liquid passage hole (29).

2. The manual coffee machine according to claim 1, characterized in that: A detachable filter screen (20) is provided between the powder cup (14) and the inner container (13).

3. The manual coffee machine according to claim 2, characterized in that: A second mounting groove (21) is provided at the bottom of the inner container (13), a second sealing ring (22) is provided in the second mounting groove (21), the second sealing ring (22) contacts the top of the powder cup (14), a fixing ring (23) is also provided in the second mounting groove (21), a plurality of clamping columns (24) are provided inside the fixing ring (23), a plurality of clamping grooves (25) are provided around the filter screen (20), and the clamping columns (24) are clamped in the clamping grooves (25).

4. The manual coffee machine according to claim 3, characterized in that: A plurality of limiting columns (26) are arranged on the circumference of the fixing ring (23), and a plurality of limiting grooves (27) are correspondingly opened on the inner wall of the powder cup cavity (16), and the limiting columns (26) are detachably clamped in the limiting grooves (27).

5. The manual coffee machine according to claim 1, characterized in that: It also includes an anti-scalding cover (30) arranged on the outside of the outer cup body (11), a mounting ring (31) is arranged on the outer periphery of the inner container (13), and the top of the anti-scalding cover (30) is fixedly connected to the mounting ring (31) by screws.

6. The manual coffee machine according to claim 5, characterized in that: The inner side of the anti-scalding cover (30) is provided with a first internal thread (32), and the top of the outer cup body (11) is provided with a first external thread (33) detachably connected to the first internal thread (32).

7. The manual coffee machine according to claim 1, characterized in that: It also includes a closing cover (35) which is covered on the inner container (13); a second external thread (34) is provided on the top of the inner container (13); and a second internal thread (36) which is detachably connected to the second external thread (34) is provided on the inner wall of the closing cover (35).

8. The manual coffee machine according to claim 7, characterized in that: A third sealing ring (37) is arranged inside the closing cover (35), and the third sealing ring (37) is in contact with the top of the inner container (13).

9. The manual coffee machine according to claim 1, characterized in that: A plurality of first installation grooves (17) are provided on the peripheral side of the inner container (13), and the first sealing ring (19) is clamped in the first installation groove (17).

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