An anti-clogging brewing device and a capsule coffee machine having the same

Abstract

The present invention discloses a clogging-proof brewing device, which comprises a brewing base, an upper cover, a cup base and a water inlet needle; the brewing base has a brewing cavity with an upward opening; the upper cover is covered on the brewing base for sealing the brewing cavity; the cup base is arranged in the brewing cavity for placing a coffee capsule; the water inlet needle is arranged in the upper cover and pierces into the coffee capsule along with the closing of the upper cover to inject water into the coffee capsule for brewing, and the water inlet needle automatically leaves the coffee capsule after the water injection is completed; a capsule coffee machine is also disclosed, which comprises a base, a frame, a water supply device and the above-mentioned brewing device, the frame is arranged on the base, and the water supply device and the brewing device are arranged on the frame, and the water supply device provides brewing water for the brewing device. In the present invention, the water inlet needle injects water into the coffee capsule for brewing and automatically leaves the coffee capsule after the water injection is completed, which can avoid the failure that the water inlet needle is blocked by coffee powder after the coffee is brewed by the device, resulting in the failure of the device to discharge water.

Description

Technical Field

[0001] The present invention relates to the technical field of coffee machines, and particularly relates to a clogging-preventing brewing device and a capsule coffee machine having the same. Background Art

[0002] Capsule coffee machines are popular among consumers because they have the characteristics of no need to grind coffee beans, convenient brewing, labor-saving and time-saving, and the brewed coffee still has high quality. The working principle of a capsule coffee machine is as follows: First, a coffee capsule is placed in the coffee machine for fixation, and then the capsule is punctured by a water inlet needle, and high-pressure water at a certain temperature is injected into the capsule to achieve coffee extraction.

[0003] Existing capsule coffee machines (such as the one with the application number 201820165092.2 and the name of a capsule coffee machine) generally have the following problems: When the coffee is brewed using the device, negative pressure is easily generated at the position of the water inlet needle. In this way, coffee powder in the capsule will be sucked back during the waterway reflux, resulting in the clogging of the water inlet needle and the failure of the device to discharge water, greatly reducing the user experience. Summary of the Invention

[0004] The purpose of the present invention is to overcome the above-mentioned deficiencies of the prior art, and provide a clogging-preventing brewing device and a capsule coffee machine having the same.

[0005] To achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A clogging-preventing brewing device includes a brewing base, an upper cover, a cup base and a water inlet needle; the brewing base has a brewing cavity with an upward opening; the upper cover is covered on the brewing base to seal the brewing cavity; the cup base is arranged in the brewing cavity for placing a coffee capsule; the water inlet needle is arranged in the upper cover and pierces into the coffee capsule along with the closing of the upper cover to inject water for brewing the coffee capsule, and the water inlet needle automatically leaves the coffee capsule after the water injection is completed.

[0007] Preferably, the upper cover is hinged to the brewing base. After the coffee capsule is brewed with water, the upper cover automatically opens to take the water inlet needle away from the coffee capsule.

[0008] Preferably, it further includes an opening and closing mechanism, and the opening and closing mechanism includes a switch component and an ejecting component. When the switch component is in a closed state, the upper cover is covered with the brewing base, and when the switch component is in an open state, the upper cover opens relative to the brewing base through the ejecting component.

[0009] Preferably, the switch assembly includes a micro switch, an electromagnet and an iron block. The micro switch and the electromagnet are arranged in the brewing base. The micro switch closes when the upper cover is closed and opens when the upper cover is opened. The iron block is arranged at the bottom of the upper cover. When the micro switch is closed, the electromagnet is energized and attracted to the iron block. When the micro switch is opened, the electromagnet is de-energized and the upper cover is pushed up and opened by the ejecting assembly.

[0010] Preferably, the ejecting assembly includes an ejecting member and a return spring. The brewing base is provided with an installation opening on the hinged side of the upper cover. The ejecting member is movably arranged in the installation opening and abuts against the bottom of the upper cover under the action of the return spring.

[0011] Preferably, the switch assembly further includes a pressing member. The pressing member is made of an elastic material and is arranged on the top of the brewing base. The bottom of the pressing member abuts against the micro switch. The ejecting member includes an ejecting block and an ejecting pin. The ejecting pin is arranged at the bottom of the ejecting block. The return spring is sleeved on the ejecting pin.

[0012] Preferably, the upper cover includes a top cover body, a bottom cover body and a mounting seat. The bottom cover body is fixed to the bottom of the top cover body. The bottom cover body includes a cover body, a hinged portion and a first mounting portion. The hinged portion is arranged on one side of the cover body and is rotatably connected to the top of the brewing base. The middle of the cover body protrudes to form the first mounting portion. A first mounting hole is arranged in the middle of the first mounting portion, and a bayonet is arranged on the side. The middle of the mounting seat is provided with a second mounting portion, and a clamping block is arranged on the side. A second mounting hole is arranged in the middle of the second mounting portion. The clamping block is clamped with the bayonet, and the second mounting portion is received in the first mounting hole. The water inlet needle is fixedly arranged in the second mounting hole.

[0013] Preferably, the upper cover further includes a water injection member. The water injection member is fixedly arranged in the second mounting hole and is connected to the water inlet needle. The water inlet needle includes a needle cap and a needle body. The needle cap is received in the second mounting hole. The needle cap extends downward to form the needle body. A water inlet channel is formed on the needle cap and the needle body. A water inlet is arranged on the side of the needle body. The water inlet is communicated with the water inlet channel.

[0014] A capsule coffee machine includes a base, a frame, a water supply device and the above-mentioned brewing device. The frame is arranged on the base. The water supply device and the brewing device are arranged on the frame. The water supply device provides brewing water for the brewing device.

[0015] Preferably, the water supply device includes a water tank, a water pump, a flow meter, a heating element, and a three-way solenoid valve. The water tank is disposed on the base, and the water pump, the flow meter, the heating element, and the three-way solenoid valve are respectively disposed on the frame. The water pump quantitatively pumps the water in the water tank through the flow meter into the heating element for heating, and supplies water to the water inlet needle by opening the three-way solenoid valve.

[0016] After adopting the above technical solution, compared with the background art, the present invention has the following advantages:

[0017] 1. In the present invention, the water inlet needle injects water into the coffee capsule for brewing, and automatically leaves the coffee capsule after the water injection is completed, which can avoid the problem that the water inlet needle is blocked by coffee powder after the coffee is brewed by the device, resulting in the failure of the device to discharge water, and greatly improves the user experience.

[0018] 2. In the present invention, the upper cover and the brewing seat are covered by the switch assembly, and when the switch assembly is disconnected, the upper cover is opened relative to the brewing seat by the ejecting assembly to bring out the water inlet needle, avoiding the problem of water inlet needle blockage. Its structure is simple and easy to manufacture, which is beneficial to reducing the production cost.

[0019] 3. In the present invention, the water inlet needle and the water injection member are fixedly arranged in the mounting seat, the mounting seat is clamped in the lower cover body, and the lower cover body is rotatably connected to the top of the brewing seat. The production and assembly of the water inlet needle and the water injection member are more convenient, and the structure is further simplified, reducing the manufacturing difficulty.

[0020] 4. The water inlet of the water inlet needle in the present invention is arranged on the side of the needle body. Compared with the structure of the straight-through water inlet needle (i.e., the water inlet is at the bottom), the water injection from the side of the water inlet needle can not only make the water column shoot out obliquely to increase the contact surface with the coffee powder, make the extraction of coffee more sufficient, improve the taste of coffee, but also the side water inlet is less likely to contact the coffee powder after the water injection is completed, which can further avoid the water inlet needle being blocked by coffee powder. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 Is a three-dimensional schematic diagram of Embodiment 1 (closed state);

[0022] Figure 2 Is a cross-sectional view of Embodiment 1;

[0023] Figure 3 Is a three-dimensional schematic diagram of Embodiment 1 (open state);

[0024] Figure 4 Is Figure 3 Exploded schematic diagram of;

[0025] Figure 5 Is a three-dimensional schematic diagram of the upper cover in Embodiment 1;

[0026] Figure 6 is Figure 5 the decomposition schematic diagram of

[0027] Figure 7 is the three-dimensional schematic diagram of the water inlet needle in the first embodiment;

[0028] Figure 8 is one of the three-dimensional schematic diagrams of the second embodiment;

[0029] Figure 9 is the second of the three-dimensional schematic diagrams of the second embodiment.

[0030] Description of the reference numerals in the drawings:

[0031] Base 1, frame 2, water tank 31, water pump 32, flow meter 33, heating element 34, three-way solenoid valve 35, brewing device 4;

[0032] Brewing seat 100, installation port 110;

[0033] Upper cover 200, top cover body 210, lower cover body 220, cover body 221, hinge part 222, first installation part 223, first installation hole 2231, bayonet 2232, installation seat 230, second installation part 231, second installation hole 2311, clamping block 232, water injection part 240;

[0034] Cup holder 300;

[0035] Water inlet needle 400, needle cap 410, needle body 420, water inlet 421, water inlet channel 430;

[0036] Switch assembly 510, micro switch 511, electromagnet 512, iron block 513, pressing part 514, ejecting assembly 520, ejecting part 521, ejecting block 5211, ejecting pin 5212, return spring 522;

[0037] Coffee capsule 600. Specific implementation manners

[0038] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0039] It should be noted in the present invention that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are all based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the devices or elements of the present invention must have a specific orientation. Therefore, it should not be construed as a limitation to the present invention.

[0040] Example 1

[0041] cooperate with Figures 1 to 3 As shown in Figures 1 to 3 , this embodiment discloses a clog - proof brewing device, which includes a brewing base 100, an upper cover 200, a cup base 300, a water inlet needle 400 and an opening - closing mechanism.

[0042] The brewing base 100 has a brewing cavity (not shown in the figure) with an upward - opening. The upper cover 200 is covered on the brewing base 100 to seal the brewing cavity. The cup base 300 is arranged in the brewing cavity for placing a coffee capsule 600. The water inlet needle 400 is arranged in the upper cover 200 and pierces into the coffee capsule 600 when the upper cover 200 is closed to inject water into the coffee capsule 600 for brewing. After the water injection is completed, the water inlet needle 400 automatically leaves the coffee capsule 600. In this embodiment, the upper cover 200 is hinged to the brewing base 100. After the coffee capsule is finished with water injection and brewing, the upper cover 200 automatically opens to take the water inlet needle 400 away from the coffee capsule 600.

[0043] cooperate with Figure 2 、 Figure 3 、 Figure 5 and Figure 6 As shown in Figure 2 , Figure 3 , Figure 5 and Figure 6 , the upper cover 200 includes a top cover body 210, a bottom cover body 220 and a mounting seat 230. The bottom cover body 220 is fixed to the bottom of the top cover body 210. The bottom cover body 220 includes a cover body 221, a hinge part 222 and a first mounting part 223. One side of the cover body 221 is provided with the hinge part 222, and the hinge part 222 is rotatably connected to the top of the brewing base 100. A first mounting part 223 protrudes from the middle of the cover body 221. A first mounting hole 2231 is arranged in the middle of the first mounting part 223, and a bayonet 2232 is arranged on the side. A second mounting part 231 is arranged in the middle of the mounting seat 230, and a clamping block 232 is arranged on the side. A second mounting hole 2311 is arranged in the middle of the second mounting part 231. The clamping block 232 is clamped with the bayonet 2232, and the second mounting part 231 is accommodated in the first mounting hole 2231. The water inlet needle 400 is fixed in the second mounting hole 2311. In this embodiment, the clamping block 232 and the bayonet 2232 are L - shaped. The clamping block 232 is first vertically inserted into the bayonet 2232 and then rotated by a certain angle to be clamped tightly in the bayonet 2232.

[0044] The upper cover 200 further includes a water injection member 240. In this embodiment, the second mounting portion 231 is in the shape of a concentric circular ring, and the second mounting hole 2311 is located in the middle of the second mounting portion 231. The water inlet needle 400 is hermetically fixed in the second mounting hole 2311, and the water injection member 240 is hermetically clamped between the inner and outer rings of the second mounting portion 231 to connect with the water inlet needle 400. The water inlet needle 400 includes a needle cap 410 and a needle body 420. The needle cap 410 is accommodated in the second mounting hole 2311, and the needle cap 410 extends downward to form the needle body 420. A water inlet channel 430 is formed on the needle cap 410 and the needle body 420, and a water inlet 421 is provided on the side of the needle body 420. The water inlet 421 communicates with the water inlet channel 430.

[0045] Cooperate Figures 2 to 7 As shown in the figure, the opening and closing mechanism includes a switch assembly 510 and an ejecting assembly 520. When the switch assembly 510 is in the closed state, the upper cover 200 covers the brewing base 100. When the switch assembly 510 is in the open state, the upper cover 200 is opened relative to the brewing base 100 through the ejecting assembly 520, thereby taking out the water inlet needle 400 to prevent the water inlet needle 400 from being blocked.

[0046] The switch assembly 510 includes a micro switch 511, an electromagnet 512 and an iron block 513. The micro switch 511 and the electromagnet 512 are arranged in the brewing base 100. The micro switch 511 is closed when the upper cover 200 is closed and opened when the upper cover 200 is opened. The iron block 513 is arranged at the bottom of the upper cover 200. When the micro switch 511 is closed, the electromagnet 512 is energized and attracted to the iron block 513. When the micro switch 511 is opened, the electromagnet 512 is de-energized, and the upper cover 200 is lifted upward by the ejecting assembly 520 and opened.

[0047] The ejecting assembly 520 includes an ejecting member 521 and a return spring 522. The brewing base 100 is provided with a mounting opening 110 on the hinged side of the upper cover 200. The ejecting member 521 is movably arranged in the mounting opening 110 and abuts against the bottom of the upper cover 200 under the action of the return spring 522. When the upper cover 200 is in the closed state, the ejecting member 521 is hidden in the mounting opening 110, and the return spring 522 is compressed.

[0048] The switch assembly 510 further includes a pressing member 514. The pressing member 514 is made of an elastic material and is arranged on the top of the brewing base 100. The bottom of the pressing member 514 abuts against the micro switch 511. After closing the upper cover 200, the upper cover 200 presses down the pressing member 514, and the micro switch 511 can be triggered after the pressing member 514 moves downward. The ejecting member 521 includes an ejecting block 5211 and an ejecting pin 5212. The ejecting pin 5212 is arranged at the bottom of the ejecting block 5211, and the return spring 522 is sleeved on the ejecting pin 5212.

[0049] Example 2

[0050] Cooperate Figures 1 to 9 As shown in Figures 1 to 9 , this embodiment discloses a capsule coffee machine, which includes a base 1, a frame 2, a water supply device, and the above-mentioned brewing device 4. The frame 2 is arranged on the base 1, and the water supply device and the brewing device 4 are arranged on the frame. The water supply device provides brewing water for the brewing device 4.

[0051] The water supply device includes a water tank 31, a water pump 32, a flow meter 33, a heating element 34, and a three-way solenoid valve 35. The water tank 31 is arranged on the base 1, and the water pump 32, the flow meter 33, the heating element 34, and the three-way solenoid valve 35 are respectively arranged on the frame 2. The water pump 32 quantitatively pumps the water in the water tank 31 through the flow meter 33 into the heating element 34 for heating, and supplies water to the water inlet needle 400 by opening the three-way solenoid valve 35.

[0052] The working principle of the present invention is as follows:

[0053] After putting the coffee capsule 600 into the cup holder 300 and closing the upper cover 200, the upper cover 200 presses down the pressing member 514. After the pressing member 514 moves downward, it can trigger the micro switch 511, making the electromagnet 512 energized to generate magnetism, and attracting the iron block 513 on the upper cover 200 through the magnetism, so as to achieve the function of the upper cover 200 closing the brewing seat 100. At the same time, the water inlet needle 400 pierces into the coffee capsule 600 along with the closing of the upper cover 200.

[0054] After the equipment is started, the heating element 34 starts to preheat first so that the initial water can reach the appropriate temperature. When the predetermined temperature is reached, the water pump 32 is controlled to pump water from the water tank 31 to supply water to the heating element 34. The water volume is calculated by the flow meter 33. After reaching the rated water volume, the three-way solenoid valve 35 is controlled to open. The three-way solenoid valve 35 controls the conversion channel, closes the water channel, turns to pump the water on the water path of the air extraction and drainage rear section, and controls the drainage time to complete the coffee brewing process.

[0055] At the moment when the water supply is cut off, the power supply of the electromagnet 512 is turned off, and the electromagnet has no magnetism, so that the electromagnet 512 no longer attracts the iron block 513. At this time, the compressed return spring 522 plays a role, and the ejector 521 has an upward pushing force under the action of the return spring 522, opening the upper cover 200, and the water inlet needle 400 is taken out by the upper cover 200, thus avoiding the blockage problem of the water inlet needle 400.

[0056] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present invention should be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

1. An anti-clogging brewing device, characterized in that: It includes a brewing base, an upper cover, a cup holder and a water inlet needle; the brewing base has a brewing cavity with an upward opening; the upper cover is covered on the brewing base to seal the brewing cavity; the cup holder is arranged in the brewing cavity for placing a coffee capsule; the water inlet needle is arranged in the upper cover and pierces into the coffee capsule with the closing of the upper cover to inject water into the coffee capsule for brewing, and the water inlet needle automatically leaves the coffee capsule after the water injection is completed; The upper cover is hinged to the brewing base. After the coffee capsule is brewed with water, the upper cover automatically opens to take the water inlet needle away from the coffee capsule; The brewing device further includes an opening and closing mechanism, and the opening and closing mechanism includes a switch assembly and an ejecting assembly. When the switch assembly is in a closed state, the upper cover is covered with the brewing base. When the switch assembly is in an open state, the upper cover opens relative to the brewing base through the ejecting assembly, thereby taking out the water inlet needle to avoid blockage of the water inlet needle; The switch assembly includes a micro switch, an electromagnet and an iron block. The micro switch and the electromagnet are arranged in the brewing base. The micro switch closes with the closing of the upper cover and opens with the opening of the upper cover. The iron block is arranged at the bottom of the upper cover. When the micro switch is closed, the electromagnet is energized and attracted to the iron block. When the micro switch is open, the electromagnet is de-energized and the upper cover is pushed up and opened by the ejecting assembly.

2. The anti-blocking brewing device according to claim 1, characterized in that: The ejecting assembly includes an ejecting member and a return spring. The brewing base is provided with a mounting opening on the hinged side of the upper cover. The ejecting member is movably arranged in the mounting opening and abuts against the bottom of the upper cover under the action of the return spring.

3. The anti-clogging brewing device according to claim 2, characterized in that: The switch assembly further includes a pressing member. The pressing member is made of an elastic material and is arranged on the top of the brewing base. The bottom of the pressing member abuts against the micro switch. The ejecting member includes an ejecting block and an ejecting pin. The ejecting pin is arranged at the bottom of the ejecting block. The return spring is sleeved on the ejecting pin.

4. A clogging-proof brewing device according to any one of claims 1 to 3, characterized in that: The upper cover includes a top cover body, a bottom cover body and a mounting seat. The bottom cover body is fixed to the bottom of the top cover body. The bottom cover body includes a cover body, a hinged portion and a first mounting portion. One side of the cover body is provided with the hinged portion, and the hinged portion is rotatably connected to the top of the brewing base. The middle of the cover body protrudes to form the first mounting portion. The middle of the first mounting portion is provided with a first mounting hole and the side is provided with a bayonet. The middle of the mounting seat is provided with a second mounting portion and the side is provided with a clamping block. The middle of the second mounting portion is provided with a second mounting hole. The clamping block is engaged with the bayonet and the second mounting portion is received in the first mounting hole. The water inlet needle is fixed in the second mounting hole.

5. The anti-blocking brewing device according to claim 4, characterized in that: The upper cover further includes a water injection member. The water injection member is fixed in the second mounting hole and is connected to the water inlet needle. The water inlet needle includes a needle cap and a needle body. The needle cap is received in the second mounting hole. The needle cap extends downward to form the needle body. A water inlet channel is formed on the needle cap and the needle body. An inlet is provided on the side of the needle body. The inlet is communicated with the water inlet channel.

6. A capsule coffee machine, characterized in that: Comprising a base, a frame, a water supply device and the brewing device according to any one of claims 1-5, wherein the frame is disposed on the base, the water supply device and the brewing device are disposed on the frame, and the water supply device provides brewing water for the brewing device.

7. The capsule coffee machine according to claim 6, wherein: The water supply device includes a water tank, a water pump, a flow meter, a heating element and a three-way solenoid valve. The water tank is disposed on the base, and the water pump, the flow meter, the heating element and the three-way solenoid valve are respectively disposed on the frame. The water pump quantitatively pumps the water in the water tank through the flow meter into the heating element for heating, and supplies water to the water inlet needle by opening the three-way solenoid valve.

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