Portable coffee machine

Abstract

The utility model provides a portable coffee machine. The portable coffee machine comprises a main machine and an extraction mechanism. The main machine comprises a shell used for forming a main body structure, and a water injection needle tube is arranged at the bottom of the shell and used for injecting water into the extraction mechanism. The extraction mechanism specifically comprises a sleeve cover and a capsule gland, and a liquid outlet is formed in the bottom of the sleeve cover. And convex thorns are arranged on the bottom surface of the inner side of the sleeve cover and are used for puncturing a sealing film of the coffee capsule. The open end of the capsule gland faces the closed end of the sleeve cover, and the capsule gland and the sleeve cover are matched to form a containing cavity used for containing coffee capsules. A through hole is formed in the closed end of the capsule gland, and the water injection needle tube penetrates through the through hole and extends into the containing cavity. A needle tube protection cover is arranged on the capsule gland and surrounds the water injection needle tube, and a water flow channel is formed in the side wall of the protection cover so that the water injection needle tube can be communicated with the containing cavity. The needle tube protection cover replaces a water injection needle tube to penetrate into a coffee capsule shell in the extraction process, the water injection needle tube is prevented from being directly stressed, and therefore abrasion and deformation risks are reduced.

Description

Technical Field

[0001] This application belongs to the field of coffee machine technology, and more specifically, relates to a portable coffee machine. Background Technology

[0002] Portable coffee machines are widely favored by consumers due to their ease of operation and compact size. They work by using a built-in spike structure to pierce the sealed coffee capsule, then injecting hot water to extract the coffee. However, in actual use, the spikes, as the key components that directly contact the coffee capsule, are subjected to the mechanical stress of piercing the hard capsule shell over a long period of time, making them prone to wear, deformation, and even breakage. Especially when the user operates the machine improperly or when the capsule material is hard, the risk of damage to the spikes is further increased, not only shortening the lifespan of the spike structure but also potentially affecting the extraction effect due to incomplete piercing. Utility Model Content

[0003] The purpose of this application is to provide a portable coffee machine to solve the technical problem of easy wear and deformation of the spiked structure in the prior art.

[0004] To achieve the above objectives, the technical solution adopted in this application is as follows:

[0005] A portable coffee machine is provided, comprising:

[0006] The main unit includes a housing and a water injection needle tube located at the lower end of the housing;

[0007] An extraction mechanism includes a cap and a capsule cap; the cap is located at the lower end of the housing and is detachably connected to the housing; the cap has a liquid outlet, and the inner bottom surface of the cap has protrusions for piercing the sealing film on the coffee capsule; the cap is fitted over the outer side of the capsule cap, and the opening end of the capsule cap is opposite to the opening end of the cap, so that the two enclose a cavity for accommodating the coffee capsule; the capsule cap has a through hole for the water injection needle to pass through, and the water injection needle extends into the cavity through the through hole;

[0008] The capsule cap is also provided with a needle tube protective cover, which covers the outside of the water injection needle tube that extends into the accommodating cavity. The needle tube protective cover has an opening to allow the water injection needle tube to communicate with the accommodating cavity.

[0009] As a further improvement to the above technical solution:

[0010] Optionally, the extraction mechanism further includes a sealing ring connected to the open end of the capsule cap, wherein when the cap is fitted onto the capsule cap, the cap presses against the sealing ring.

[0011] Optionally, the capsule cap has a positioning protrusion extending in its radial direction, and the sleeve cap has a corresponding positioning groove. When the sleeve cap is fitted onto the capsule cap, the positioning protrusion is inserted into the positioning groove.

[0012] Optionally, the extraction mechanism further includes a filter cup for filling coffee powder, wherein either the filter cup or the capsule cap is used in conjunction with the cap; the opening end of the filter cup is arranged in the same direction as the opening end of the cap, and the water injection needle extends into the filter cup through the opening end of the filter cup;

[0013] The bottom of the filter cup is provided with a filter screen and a conduit. One end of the conduit is located below the filter screen, and the other end of the conduit is connected to the liquid outlet on the cover.

[0014] Optionally, it also includes a water storage mechanism, which includes a water storage cup and a cup lid. The water storage cup is located at the upper end of the main unit, and the cup lid is placed on the water storage cup. The water storage cup is connected to the water injection needle tube.

[0015] Optionally, the cup lid has a vent hole and a one-way exhaust valve, through which the gas in the water storage cup is discharged to the outside.

[0016] Optionally, the water storage mechanism further includes a heater located outside the water storage cup and in contact with the bottom of the water storage cup.

[0017] Optionally, the main unit also includes a circuit board, a battery, and a water pump installed in the housing, wherein the heater, water pump, and battery are all electrically connected to the circuit board; the water inlet of the water pump is connected to the water storage cup, and the water outlet of the water pump is connected to the water injection needle tube.

[0018] Optionally, it also includes a liquid receiving cup fitted onto the housing, the liquid receiving cup being located below the liquid outlet of the cover.

[0019] Optionally, a bracket with mounting holes may also be included, on which the main unit can be inserted.

[0020] The advantages of the portable coffee machine provided in this application are as follows:

[0021] The portable coffee machine provided in this application includes a main unit and an extraction mechanism. The main unit includes a housing constituting the main structure, and a water injection needle is provided at the bottom of the housing for injecting water into the extraction mechanism. The extraction mechanism specifically includes a cap and a capsule cap. The cap is detachably installed at the lower end of the housing by means of threaded connection or other means, making it easy to remove the cap to fill a coffee capsule or to put the cap back on the housing. The bottom of the cap has a liquid outlet for discharging the extracted coffee liquid. The inner bottom surface of the cap has multiple protrusions evenly distributed, which are used to pierce the sealing film of the coffee capsule to allow the extracted coffee liquid to flow out of the capsule. The open end of the capsule cap faces the closed end of the cap, and the two cooperate to form a receiving cavity for accommodating the coffee capsule. The closed end of the capsule cap has a through hole, through which the water injection needle extends into the receiving cavity. To protect the injection needle and reduce wear and deformation, a needle protector is installed on the capsule cap. This protector surrounds the injection needle, and its side wall has a water flow channel to keep the injection needle in communication with the accommodating cavity. During extraction, the needle protector pierces the coffee capsule shell in place of the injection needle, preventing direct stress on the needle and thus reducing the risk of wear and deformation. This ensures extraction efficiency while improving the lifespan and safety of the equipment. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 A cross-sectional structural diagram of the portable coffee machine provided in this application;

[0024] Figure 2 This is a schematic diagram of the main structure of the portable coffee machine provided in this application;

[0025] Figure 3 A side view of the portable coffee machine provided in this application;

[0026] Figure 4 A partially enlarged structural schematic diagram of the portable coffee machine provided in this application;

[0027] Figure 5 A schematic diagram showing the disassembled structure of the first extraction mechanism of the portable coffee machine provided in this application;

[0028] Figure 6 A schematic diagram showing the disassembled structure of the second extraction mechanism of the portable coffee machine provided in this application.

[0029] The following are the labeling elements in the figure:

[0030] 1. Main unit; 11. Housing; 12. Water injection needle; 13. Circuit board; 14. Battery; 15. Water pump; 2. Extraction mechanism; 21. Cap; 211. Liquid outlet; 212. Protrusion; 213. Positioning groove; 22. Capsule cap; 221. Needle tube protective cover; 222. Positioning protrusion; 23. Receptacle; 24. Sealing ring; 25. Filter cup; 251. Filter screen; 252. Guide tube; 3. Water storage mechanism; 31. Water storage cup; 32. Cup lid; 321. Vent hole; 322. One-way exhaust valve; 33. Heater; 4. Liquid receiving cup; 5. Support. Detailed Implementation

[0031] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0032] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0033] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0034] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0035] like Figures 1 to 3As shown, this application provides a portable coffee machine, specifically including a main unit 1 and an extraction mechanism 2. The main unit 1 includes a housing 11 forming the main structure, and a water injection needle 12 is provided at the bottom of the housing 11 for injecting water into the extraction mechanism 2. The extraction mechanism 2 specifically includes a cover 21 and a capsule cap 22. The cover 21 is detachably installed at the lower end of the housing 11 by means of threaded connection or other means, making it easy to remove the cover 21 to fill coffee capsules or to put the cover 21 back onto the housing 11. The bottom of the cover 21 has a liquid outlet 211 for discharging the extracted coffee liquid. The inner bottom surface of the cover 21 has a plurality of protrusions 212 evenly distributed, which are used to pierce the sealing film of the coffee capsule to allow the extracted coffee liquid to flow out of the capsule.

[0036] The capsule cap 22 and the sleeve cap 21 adopt a reverse nesting structure, that is, the open end of the capsule cap 22 faces the closed end of the sleeve cap 21, and the two cooperate to form a receiving cavity 23 for accommodating coffee capsules. The closed end of the capsule cap 22 has a through hole, through which the water injection needle 12 extends into the receiving cavity 23. To protect the water injection needle 12 and reduce wear and deformation, the capsule cap 22 is equipped with a needle protection cover 221. This cover surrounds the water injection needle 12, and its side wall has a water flow channel, keeping the water injection needle 12 in communication with the receiving cavity 23. During the extraction process, the needle protection cover 221 replaces the water injection needle 12 in piercing the coffee capsule shell, avoiding direct force on the water injection needle 12, thereby reducing the risk of wear and deformation, and improving the service life and safety of the equipment while ensuring extraction efficiency.

[0037] like Figure 1 and Figure 5 As shown, in one specific embodiment of this application, the extraction mechanism 2 further includes a sealing ring 24, which is connected to the open end of the capsule cap 22. When the cover 21 is fitted onto the capsule cap 22, the inner wall of the cover 21 and the sealing ring 24 form a tight seal, thereby effectively improving the sealing performance between the cover 21 and the capsule cap 22. The sealing ring 24 is made of an elastic material and can deform under pressure to fill the assembly gap. In addition, the sealing ring 24 extends into the cavity 23, and its inner edge can press against the flange of the coffee capsule, thereby limiting the displacement of the coffee capsule during the extraction process and ensuring that the coffee capsule remains stably positioned under high-pressure extraction.

[0038] like Figure 1 and Figure 5As shown in a specific embodiment of this application, the outer peripheral surface of the capsule cap 22 is provided with a positioning protrusion 222 extending in the radial direction, and the inner wall of the cover 21 is correspondingly provided with a positioning groove 213. When the cover 21 is fitted onto the capsule cap 22, the positioning protrusion 222 and the positioning groove 213 form an interlocking fit, realizing circumferential positioning of the two. This positioning structure can ensure that the cover 21 and the capsule cap 22 maintain the correct relative positional relationship during assembly and prevent relative rotation between the two. The matching structure of the positioning protrusion 222 and the positioning groove 213 is simple and reliable, which not only facilitates assembly operations but also effectively maintains the structural stability of the extraction mechanism 2 under normal working conditions.

[0039] like Figure 1 and Figure 6 As shown, in one specific embodiment of this application, the extraction mechanism 2 further includes a replaceable filter cup 25, which is used in conjunction with the capsule cap 22 and the cover 21. The open end of the filter cup 25 and the open end of the cover 21 are aligned in the same direction, and the water injection needle 12 extends through the open end of the filter cup 25 into its internal space. A filtration structure is provided at the bottom of the filter cup 25, including an upper filter screen 251 and a corresponding lower conduit 252. The filter screen 251 is used to filter coffee powder, and one end of the conduit 252 is positioned below the filter screen 251 to collect the filtrate, while the other end is connected to the outlet 211 on the cover 21, forming a complete liquid flow path. This structural design allows users to choose between using coffee capsules or bulk coffee powder for extraction, improving the applicability and flexibility of the device.

[0040] like Figures 1 to 3 As shown, in one specific embodiment of this application, the portable coffee machine further includes a water storage mechanism 3, which includes a water storage cup 31 and a lid 32. The water storage cup 31 is fixedly installed on the upper end of the main unit 1, and its interior forms a water storage chamber. The lid 32 is detachably fitted onto the opening of the water storage cup 31 to form a sealed structure. The bottom of the water storage cup 31 is provided with a water outlet to communicate with the water injection needle 12, so as to realize the water flow from the water storage mechanism 3 to the extraction mechanism 2.

[0041] like Figures 1 to 3 As shown, in one specific embodiment of this application, the cup lid 32 is provided with a gas emission structure, including a vent 321 and a one-way exhaust valve 322. The one-way exhaust valve 322 is integrated inside the cup lid 32, forming a gas emission channel with the vent 321. When the internal air pressure of the water storage cup 31 increases, the gas can be discharged to the external environment through the one-way exhaust valve 322 and the vent 321 in sequence; while when the internal air pressure of the water storage cup 31 decreases, the one-way exhaust valve 322 automatically closes, effectively preventing outside air from entering the water storage cup 31 in the reverse direction. This gas emission structure ensures the balance of air pressure inside and outside the water storage cup 31 while avoiding pollution problems caused by the entry of external dust.

[0042] like Figures 1 to 4 As shown, in one specific embodiment of this application, the water storage mechanism 3 further includes a heater 33, which is disposed on the outer wall of the water storage cup 31, with its heating surface in direct contact with the bottom of the water storage cup 31. The heater 33 heats the water in the water storage cup 31 through heat conduction. This arrangement ensures heating efficiency while avoiding direct contact between the heating element and the water, thus improving the safety and reliability of the equipment. The operating temperature of the heater 33 can be precisely adjusted by the control system of the host 1 to meet the water temperature requirements of different coffee extraction processes.

[0043] like Figures 1 to 4 As shown, in one specific embodiment of this application, the main unit 1 further includes a circuit board 13, a battery 14, and a water pump 15 integrated inside the housing 11. The circuit board 13 serves as the control center, establishing electrical connections with the heater 33, the battery 14, and the water pump 15. The water inlet of the water pump 15 is connected to the water storage cup 31 via a pipe, while the water outlet is connected to the water injection needle tube 12, forming a complete water system. The battery 14 provides power to the entire system, and the water pump 15 operates under the control of the circuit board 13, pressurizing and delivering the water in the water storage cup 31 to the water injection needle tube 12. This main unit 1 can achieve coordinated operation of water storage, heating, pressurization, and water injection functions, ensuring the accuracy of water flow pressure and temperature control during the coffee extraction process.

[0044] like Figures 1 to 3 As shown, in one specific embodiment of this application, the portable coffee machine further includes a liquid receiving cup 4, which is detachably fitted onto the exterior of the housing 11 of the main unit 1. The liquid receiving cup 4 is positioned corresponding to the liquid outlet 211 of the extraction mechanism 2, directly below the liquid outlet 211. The liquid receiving cup 4 is used to collect the coffee liquid flowing out from the liquid outlet 211.

[0045] like Figures 1 to 3 As shown, in one specific embodiment of this application, the portable coffee machine further includes a stand 5, which has a mounting hole that matches the shape of the main unit 1. The main unit 1 can be inserted into the mounting hole of the stand 5 through the lower part of its housing 11 to achieve stable placement of the main unit and ensure that the main unit 1 can remain upright. The stand 5 can be used to fix the main unit 1, making it stable when not in use, while facilitating user handling. The bottom of the stand 5 can be provided with an anti-slip structure to enhance placement stability.

[0046] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A portable coffee maker characterized in that, The utility model relates to a coffee machine, which comprises a main body (1) and an extraction mechanism (2). The main body (1) comprises a housing (11) and a water injection needle tube (12) arranged at the lower end of the housing (11). The extraction mechanism (2) comprises a cover (21) and a capsule cover (22). The cover (21) is arranged at the lower end of the housing (11) and detachably connected to the housing (11). The cover (21) is provided with a liquid outlet (211) and a plurality of convex spikes (212) on the inner bottom surface thereof for piercing the sealing film of a coffee capsule. The cover (21) is arranged outside the capsule cover (22), and the opening end of the capsule cover (22) is arranged in reverse to the opening end of the cover (21) so as to form a containing cavity (23) for containing the coffee capsule. The capsule cover (22) is provided with a through hole for the water injection needle tube (12) to pass through, and the water injection needle tube (12) extends into the containing cavity (23) through the through hole. The capsule cover (22) is further provided with a needle tube protection cover (221) arranged outside the water injection needle tube (12) extending into the containing cavity (23). The needle tube protection cover (221) is provided with an opening so that the water injection needle tube (12) is in communication with the containing cavity (23).

2. The portable coffee maker of claim 1, wherein, The extraction mechanism (2) further comprises a sealing ring (24) connected to the opening end of the capsule cover (22). When the cover (21) is arranged on the capsule cover (22), the cover (21) is pressed against the sealing ring (24).

3. The portable coffee maker of claim 1, wherein, The capsule cover (22) is provided with a positioning protrusion (222) extending in the radial direction thereof, and the cover (21) is provided with a corresponding positioning groove (213). When the cover (21) is arranged on the capsule cover (22), the positioning protrusion (222) is inserted into the positioning groove (213).

4. The portable coffee maker according to any one of claims 1 to 3, wherein The extraction mechanism (2) further comprises a filter cup (25) for loading coffee powder. The filter cup (25) and the capsule cover (22) are alternatively used in cooperation with the cover (21). The opening end of the filter cup (25) is arranged in the same direction as the opening end of the cover (21), and the water injection needle tube (12) extends into the filter cup (25) through the opening end of the filter cup (25). The bottom of the filter cup (25) is provided with a filter screen (251) and a conduit (252). One end of the conduit (252) is located below the filter screen (251), and the other end of the conduit (252) is in communication with the liquid outlet (211) of the cover (21).

5. The portable coffee maker according to any one of claims 1 to 3, wherein The utility model further comprises a water storage mechanism (3) comprising a water storage cup (31) and a cup cover (32). The water storage cup (31) is arranged at the upper end of the main body (1), and the cup cover (32) is arranged on the water storage cup (31). The water storage cup (31) is in communication with the water injection needle tube (12).

6. The portable coffee maker of claim 5, wherein, The cup cover (32) is provided with a gas permeation hole (321) and a one-way exhaust valve (322). The gas in the water storage cup (31) is discharged to the outside through the one-way exhaust valve (322) and the gas permeation hole (321).

7. The portable coffee maker of claim 5, wherein, The water storage mechanism (3) further comprises a heater (33) which is located outside the water storage cup (31) and in contact with the bottom of the water storage cup (31).

8. The portable coffee maker of claim 7, wherein, The main machine (1) further comprises a circuit board (13), a battery (14) and a water pump (15) which are installed in the shell (11), the heater (33), the water pump (15) and the battery (14) are electrically connected with the circuit board (13); the water inlet end of the water pump (15) is connected with the water storage cup (31), and the water outlet end of the water pump (15) is connected with the water injection needle tube (12).

9. The portable coffee maker according to any one of claims 1 to 3, wherein, The main machine (1) further comprises a liquid receiving cup (4) which is sleeved on the shell (11), and the liquid receiving cup (4) is located below the liquid outlet (211) of the cover (21).

10. The portable coffee maker according to any one of claims 1 to 3, wherein The main machine (1) further comprises a support (5) with a mounting hole, and the main machine (1) can be inserted into the support (5).

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