Filter cup

Abstract

The invention discloses a filter cup which comprises a cup body and further comprises a closed container with a cover, a coffee powder filter cup is arranged at the bottom of the closed container, a filter channel is arranged in the middle of the coffee powder filter cup, a rubber valve is fixedly arranged in the filter channel, a linear opening is formed in the rubber valve, and the linear opening can be opened when internal air pressure is compressed. During use, air pressure in the closed container is compressed, the rubber valve is opened under the action of the air pressure, soaked coffee liquid flows out through the linear opening of the rubber valve, the structure is simple, and the coffee liquid is convenient to soak and obtain.

Description

Technical Field

[0001] The invention relates to the technical field of coffee brewing devices, and in particular to a coffee filter cup. Background Art

[0002] At present, there are more and more ways to brew coffee, including cold brew and hot water brewing coffee powder. The coffee grounds need to be filtered out during the coffee brewing process, and the filtered coffee tastes better.

[0003] Existing coffee brewing devices use a drip method to flow water through the coffee powder, reducing the number of brewing times. The water slowly flows through the coffee powder, which has the disadvantage of taking a long time and not being conducive to quick brewing. Some coffee brewing devices use a circulating immersion method to brew coffee, that is, coffee powder is placed in a pipe with two ends open, and water is pumped back and forth through the pipe to increase the number of brewing times to obtain coffee liquid. The disadvantage of such a device is that the device is complicated and inconvenient to carry.

[0004] Nowadays, coffee brewing has new requirements on brewing time, water temperature, portability of brewing device and other comprehensive aspects. For this reason, the applicant invented the technology of this patent application. Summary of the invention

[0005] The purpose of the present invention is to solve the shortcomings of the prior art and provide a filter cup with a simple structure and convenient coffee brewing.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A filter cup includes a cup body and a sealed container with a cover. A coffee powder filter cup is installed at the bottom of the sealed container. A filter channel is provided in the middle of the coffee powder filter cup. The filter channel is characterized in that a glue valve is fixed in the glue valve, and the glue valve is provided with a linear opening.

[0008] The filter cup as described above is characterized in that: the closed container includes a push cylinder, the coffee powder filter cup is movably placed in the push cylinder, and a sealing ring that can slide along the push cylinder is fixed to the upper part of the coffee powder filter cup; the upper end of the cup body is a cup mouth, and the cylinder body on the push cylinder is movably mounted on the cup body, and the coffee powder filter cup can be hung on the edge of the cup mouth, so that the coffee powder filter cup can slide along the cylinder body with the cup body as support.

[0009] The filter cup as described above is characterized in that: the push cylinder includes a cylinder body and a cover, the cylinder body is a hollow cylinder, the upper end of the cylinder body is an opening with external threads, the inner wall of the cover is provided with internal threads that match the external threads on the cylinder body; a protrusion is provided at the center position of the inner side of the cover.

[0010] The filter cup as described above is characterized in that: a silicone barrier sheet is provided at the lower end of the rubber valve to laterally block the outlet thereof, and the linear opening is provided at a side of the silicone barrier sheet away from the center.

[0011] The filter cup as described above is characterized in that: a circle of radial bones is provided on the outer circumference of the bottom of the cup body to limit the downward displacement limit position of the push cylinder, the inner circle edge of the radial bones is connected to the outer edge of the bottom of the cup body, and the outer circle of the radial bones has the same caliber as the lower end opening of the push cylinder.

[0012] The filter cup as described above is characterized in that: the sealed container includes a hollow coffee canister, the upper end of the coffee canister is sealed with a vacuum cover, the coffee powder filter cup is sealed with the lower end of the coffee canister, and the lower end of the rubber valve is provided with left and right sealing sheets, the left and right sealing sheets are arranged in a "V" shape, and the lower ends of the left and right sealing sheets fit together to form the linear opening.

[0013] The filter cup as described above is characterized in that the vacuum cover is in a cover shape and is provided with a one-way valve for vacuuming the coffee can.

[0014] The filter cup as described above is characterized in that: the vacuum cover is provided with a pressurizing hole for pressurizing the coffee can, a rubber plug is provided in the pressurizing hole, and the rubber plug is connected to the valve sheet of the one-way valve as a whole.

[0015] The filter cup as described above is characterized in that it also includes an air pump device that can be sealed with the vacuum cover, and the air pump device is detachably connected to the upper end of the vacuum cover.

[0016] The filter cup as described above is characterized in that: a filter screen is also installed in the filter channel, and the filter screen is located above the glue valve.

[0017] The beneficial effects of the present invention are:

[0018] 1. In the first embodiment of the present application, the coffee powder filter cup is movably placed in the push cylinder, a sealing ring that can slide along the push cylinder is fixed on the upper part of the coffee powder filter cup, a filter channel is provided in the middle part of the coffee powder filter cup, a glue valve is fixed in the filter channel, and the glue valve is provided with a linear opening that opens under external pressure. When in use, the coffee powder filter cup and the push cylinder form a closed container, the lid is opened to place the coffee powder, and water is added to soak it. When the coffee liquid needs to be obtained, only the push cylinder needs to be moved down to compress the air pressure inside the closed container, and the glue valve is opened under the action of the air pressure, and the coffee liquid after soaking flows out through the linear opening of the glue valve. The structure is simple and convenient for soaking and obtaining the coffee liquid.

[0019] 2. In the first embodiment of the present application, a convex block is provided at the center of the inner side of the lid, and the convex block is a silicone block. When in use, after the push tube is pressed to the bottom, the silicone block inside the lid is used to compact and dry the soaked coffee powder to avoid residual coffee liquid and waste.

[0020] 3. In the first embodiment of the present application, the filter cup includes a cup body, the upper end of the cup body is a cup mouth, the barrel on the push cylinder is movably sleeved outside the cup body, and the coffee powder filter cup can be hung on the edge of the cup mouth, so that the coffee powder filter cup can slide along the barrel with the cup body as support. With this structural design, the soaked coffee liquid can be obtained by pressing the push cylinder downward, and the filter cup has a simple structure and is easy to use.

[0021] 4. The sealed container with a vacuum cover in the second embodiment of the present application is evacuated or pressurized by an air pump device. This structural design can achieve vacuumization through the air pump device, soaking in a vacuum state, and then pressurizing through the air pump device to obtain coffee liquid. The filter cup has a simple structure and is easy to use.

[0022] 5. In the two embodiments of the present application, a filter screen is also installed in the filter channel. The filter screen is located above the rubber valve. The filter screen is used to retain coffee residues in the push cylinder, which is conducive to obtaining brewed coffee liquid with better taste. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the internal structure of the push cylinder assembly in Example 1;

[0024] Figure 2 This is a schematic diagram of the internal structure of the push cylinder assembly after coffee powder is put into it in Example 1;

[0025] Figure 3 This is a schematic diagram of the internal structure of the push cylinder assembly in Example 1 after coffee powder is put into it and water is added;

[0026] Figure 4 This is a schematic diagram of the internal structure of the push cylinder assembly in the first embodiment when coffee powder is put into the push cylinder assembly and water is added for brewing;

[0027] Figure 5 This is a schematic diagram of the main cross-sectional structure of the rubber valve in Example 1;

[0028] Figure 6 It is a schematic diagram of the structure of the filter cup in the first embodiment when it is disassembled;

[0029] Fig. 7A This is a schematic diagram of the main cross-sectional structure of the lid of the filter cup in Example 1;

[0030] Figure 7B This is a schematic diagram of the main cross-sectional structure of the coffee powder filter cup in the filter cup in Example 1;

[0031] Figure 7C This is a schematic diagram of the main cross-sectional structure of the cylinder body in the filter cup in Example 1;

[0032] Fig.7D This is a schematic diagram of the main cross-sectional structure of the cup body in the filter cup in Example 1;

[0033] Figure 8This is a schematic diagram of the internal structure of the filter cup after coffee powder is put into it in Example 1;

[0034] Fig. 9 This is a schematic diagram of the internal structure of the filter cup in Example 1 after coffee powder is put into the filter cup and water is added;

[0035] Fig.10 This is a schematic diagram of the internal structure of the filter cup in Example 1 when coffee powder is put into the filter cup and water is added for brewing;

[0036] Fig.11 It is a schematic diagram of the internal structure of the filter cup in Example 1 after the push cylinder assembly is pressed down and the filter cover is taken away;

[0037] Fig.12 It is a schematic diagram of the exploded structure of the sealed container with a vacuum cover in Example 2;

[0038] Fig.13 This is a schematic diagram of the state of adding coffee powder in Example 2;

[0039] Fig.14 This is a schematic diagram of the structure of the water-adding state of Example 2;

[0040] Fig.15 This is a schematic diagram of the state where the vacuum cover is put on the second embodiment;

[0041] Fig.16 This is a schematic diagram of the state where the air suction hole of the air pump device of Example 2 is facing the vacuum cover;

[0042] Fig.17 This is a schematic diagram of the state in which the air pump device is removed and is ready to be put into the refrigerator for cold brewing in Example 2;

[0043] Fig.18 This is a schematic diagram of the state of pulling out the rubber plug in the second embodiment;

[0044] Fig.19 This is a schematic diagram of the state where the air outlet of the air pump device of Example 2 faces the vacuum cover;

[0045] Fig. 20 It is a schematic diagram of the main cross-sectional structure of the rubber valve in the second embodiment. DETAILED DESCRIPTION

[0046] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0047] like Figure 1-Figure 5 As shown, an embodiment of a push cylinder assembly.

[0048] A push cylinder assembly includes a push cylinder 1 and a coffee powder filter cup 2. The coffee powder filter cup 2 is movably placed in the push cylinder 1. A sealing ring 3 capable of sliding along the inner wall of the push cylinder 1 is fixed on the upper part of the coffee powder filter cup 2. The sealing ring 3 is a silicone sealing ring. The sealing ring 3 is tightly sleeved in an annular mounting groove 25 provided on the outer ring of the coffee powder filter cup 2. A filter channel 21 is provided in the middle of the coffee powder filter cup 2. A glue valve 22 is fixed in the filter channel 21. The push cylinder 1, the coffee powder filter cup 2 and the sealing ring 3 form a closed container with a movable bottom. The closed container is used for brewing coffee powder.

[0049] In the embodiment of the present application, the rubber valve 22 is a silicone valve. The rubber valve 22 is funnel-shaped, and the left and right sides of the rubber valve 22 are respectively provided with silicone connecting pieces 221 extending vertically downward, and the inner wall of the filter channel 21 is correspondingly provided with a card slot 211 that is engaged with the above-mentioned silicone connecting piece 221. Through the cooperation between the silicone connecting piece 221 and the card slot 211, the rubber valve 22 is fixedly connected to the outlet end of the filter channel 21.

[0050] In the embodiment of the present application, a silicone barrier sheet 222 is provided at the lower end of the rubber valve 22 to laterally block its outlet, and a linear opening 223 is provided on one side of the silicone barrier sheet 222 away from the center, and the silicone barrier sheet 222 has sufficient thickness to enhance the closing ability of the linear opening 223. The linear opening 223 is used as a valve, and when the push cylinder 1 moves downward to compress the air pressure inside the sealed container, the linear opening 223 opens to both sides, and water can flow out of the opened linear opening 223. After the sealed container is depressurized, the linear opening 223 automatically closes to realize the valve function.

[0051] In order to prevent coffee powder residue from flowing into the filter channel 21, a filter screen 23 is also installed in the filter channel 21. The filter screen 23 is located at the inlet end of the filter channel 21 above the glue valve 22. The coffee liquid flows into the filter channel 21 after being filtered by the filter screen 23 and is stored in the funnel-shaped glue valve 22, preparing for the next step of squeezing out the coffee liquid.

[0052] In the embodiment of the present application, the filter screen 23 is a sheet-shaped stainless steel filter screen, which is placed flat in the installation groove 24 at the upper end of the coffee powder filter cup 2. The inner diameter of the installation groove 24 is larger than the outer diameter of the filter screen 23. The filter screen 23 can be poured out to facilitate cleaning of the filter channel 21.

[0053] In the embodiment of the present application, the push cylinder 1 includes a cylinder body 11 and a cover 12. The cylinder body 11 is a hollow cylinder with upper and lower ends connected. The upper end of the cylinder body 11 is an opening with an external thread 111. The inner wall of the cover 12 is provided with an internal thread 122 that is threadably matched with the external thread 111 on the cylinder body 11. A convex block 121 is provided at the center of the inner side of the cover 12. The convex block 121 is a silicone convex block.

[0054] In the embodiment of the present application, the lid 12 is unscrewed to facilitate adding coffee powder, soaking with water and taking out the coffee powder filter cup 2. Tightening the lid 12 forms a closed container with a movable bottom inside the push cylinder 1, which facilitates subsequent pressing down of the push cylinder 1 and squeezing out the brewed coffee liquid through the rubber valve 22, as well as compacting the coffee powder.

[0055] In the embodiment of the present application, a sealing ring 24 is fixed on the outer wall of the upper part of the barrel 11, and the sealing ring 24 is located at the lower end of the external thread 111. At the end position of the threaded connection between the cover 12 and the barrel 11, the cover is pressed tightly against the upper end of the sealing ring 24, and the sealing ring 24 is used for sealing cooperation between the cover 12 and the barrel 11 to prevent water from leaking from the cover 12.

[0056] Used when pushing the cylinder assembly, 1. Install the coffee powder filter cup at the bottom of the push cylinder 1 (see Figure 1 ) ; 2. Add coffee powder (see Figure 2 ); 3. Add water (see Figure 3 ) ; 4. Cover the lid 12 and put it in the refrigerator to cool (see Figure 4 ).

[0057] After cold brewing for the time you need, Figure 6-Figure 10 The first embodiment shown is a hand-pressed filter cup with a push cylinder assembly.

[0058] A filter cup includes a push cylinder assembly and a cup body 5, wherein the upper end of the cup body 5 is a cup mouth, a barrel 11 on a push cylinder 1 is movably sleeved outside the cup body 5, and a coffee powder filter cup 2 can be hung on the edge of the cup mouth of the cup body 5, so that the coffee powder filter cup 2 can slide upward along the barrel 11 with the cup body 5 as support.

[0059] In the embodiment of the present application, the push cylinder assembly is pressed down until the coffee in the cylinder 1 is pressed into the cup body 5.

[0060] In the embodiment of the present application, after the push cylinder 1 is pressed to the bottom, the coffee powder is compacted and dried by using the silicone protrusions inside the cover 12. The cover 12 is unscrewed, the coffee powder filter cup 2 is taken away, and the cover 12 is installed again. The push cylinder 1 and the cup 5 form a double-layer cup, which can keep warm and prevent scalding.

[0061] In the embodiment of the present application, a radial bone 51 is provided on the outer circumference of the bottom of the cup body 5 to limit the downward displacement limit position of the push cylinder 1. The inner edge of the radial bone 51 is connected to the outer edge of the bottom of the cup body 5 as a whole, and the outer circle of the radial bone 51 has the same caliber as the lower opening of the push cylinder 1. Such a structural design enables the cup body 5 and the push cylinder assembly to form a filter cup with a neat appearance and a small volume, which is convenient to carry.

[0062] like Fig.11As shown, after the coffee liquid is collected, a sealing ring 3 6 that can slide along the inner wall of the push cylinder 1 can be fixed on the outer wall of the cup mouth of the cup body 5. The sealing ring 3 6 has the same outer diameter as the sealing ring 1 3. The sealing ring 3 6 forms a sealed space between the cup body 5, the push cylinder 1 and the lid 12, which is convenient for subsequent carrying and use.

[0063] like Figure 12-Figure 20 The second embodiment shown is a vacuum filter cup with an air pump device.

[0064] A filter cup comprises a cup body 5 and a sealed container with a cover. A coffee powder filter cup 2 is arranged at the bottom of the sealed container. A filter channel 21 is arranged in the middle of the coffee powder filter cup 2. A glue valve 22 is fixed in the filter channel 21. The glue valve 22 is provided with a linear opening 223.

[0065] It also includes an air pump device 9 that can be sealed with the vacuum cover 101 , and the air pump device 9 is detachably connected to the upper end of the vacuum cover 101 .

[0066] In the second embodiment of the present application, two left and right sealing sheets 224 are provided at the lower end of the rubber valve 22 . The left and right sealing sheets 224 are arranged in a “V” shape, and the lower ends of the left and right sealing sheets 224 fit together to form the linear opening 223 .

[0067] In the second embodiment of the present application, the air pump device 9 is a vacuum pump device, which is a prior art. The change of the structure of the air pump device 9 does not limit the protection scope of the present application.

[0068] In the second embodiment of the present application, the sealed container includes a hollow coffee can 100, the upper end of the coffee can 100 is sealed with a vacuum cover 101, and the coffee powder filter cup 2 is sealed with the lower end of the coffee can 100, so that a sealed container with a vacuum cover is formed in the coffee can 100 for brewing coffee.

[0069] The vacuum cover 101 is in a cover shape and is used to seal and fit on the upper opening of the coffee can 100. Preferably, the vacuum cover 101 is threadedly connected to the upper opening of the coffee can 100. A sealing ring may also be provided in the vacuum cover 101 to increase the sealing of the connection between the two.

[0070] To achieve vacuuming and pressurizing, the vacuum cover 101 is provided with a one-way valve 7 for vacuuming the coffee can 100. The vacuum cover 101 is also provided with a pressurizing hole 102 for pressurizing the coffee can 100, and a rubber plug 8 is provided in the pressurizing hole 102, which is connected to the valve sheet of the one-way valve 7 as a whole.

[0071] like Fig. 20As shown, in order to avoid air leakage during vacuuming, in the second embodiment of the present application, the glue valve 22 is a one-way silicone valve, and the specific structure is as follows: two left and right sealing sheets 224 are provided at the lower end of the glue valve 22, and the left and right sealing sheets 224 are arranged in a "V" shape, and the lower ends of the left and right sealing sheets 224 fit together to form a linear opening 223. The advantage of such a structural design is that when vacuuming, the left and right sealing sheets 224 arranged in a "V" shape move closer to the center, and the lower end of the glue valve 22 fits more tightly, thereby preventing gas from entering the coffee can 100 from the linear opening 223 during vacuuming.

[0072] The air pump device 9 can be sealed with the vacuum cover 101, and the air pump device 9 is detachably connected with the upper end of the vacuum cover 101. Preferably, the lower end of the air pump device 9 is provided with a hook bent inward, and the outer circumference of the upper end of the vacuum cover 101 is provided with a radially outward extending card edge, and the card edge is inserted into the hook to achieve the detachable connection between the air pump device 9 and the vacuum cover 101. A sealing ring is provided between the lower end of the housing of the air pump device 9 and the upper end of the vacuum cover 101 to achieve the sealing cooperation between the air pump device 9 and the vacuum cover 101.

[0073] In the second embodiment of the present application, the air intake hole 91 and the air outlet hole 92 are respectively located on the upper and lower sides of the air pump device 9 shell. The upper and lower sides of the air pump device 9 shell are symmetrically designed, which facilitates the switching of the air intake hole 91, the air outlet hole 92 and the vacuum cover 101.

[0074] In order to prevent coffee powder residue from flowing into the filter channel 21, a filter screen 23 is also installed in the filter channel 21. The filter screen 23 is located at the inlet end of the filter channel 21 above the glue valve 22. The coffee liquid flows into the filter channel 21 after being filtered by the filter screen 23 and is stored in the funnel-shaped glue valve 22, preparing for the next step of squeezing out the coffee liquid.

[0075] In order to facilitate the connection between the coffee powder filter cup 2 and the cup body 5, a downwardly extending sleeve is provided on the outer circumference of the coffee powder filter cup 2, so that the cup body 5 can be inserted into the sleeve and connected with the coffee powder filter cup 2.

[0076] When the second embodiment of the present application is working,

[0077] First, vacuum the air. The steps are as follows:

[0078] First open the vacuum cover 101 and add coffee powder into the coffee cartridge 100 (see Fig.13 ), add water (see Fig.14 ).

[0079] Then cover the vacuum cover 101, install the air pump device 9, and evacuate the air (see Fig.15 ).

[0080] Then install the air pump device 9 above the vacuum cover, with the air suction hole facing the vacuum cover 101, and use the air pump device 9 to evacuate the vacuum (see Fig.16 ).

[0081] Then remove the air pump device 9, put the airtight container with coffee into the refrigerator for cold brewing (see Fig.17 ).

[0082] Re-pressurize, the steps are as follows:

[0083] First pull out the rubber plug 8 (see Fig.18 ).

[0084] Then place the sealed container on the cup body 5, and then install the air pump device 9 above the vacuum cover 101, with the air outlet facing the vacuum cover 101, and use the air pump device 9 to pressurize the coffee liquid to squeeze it into the cup body 5 (see Fig.19 ).

[0085] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A filter cup, comprising a cup body (5), characterized in that: The invention also comprises a sealed container with a lid, wherein a coffee powder filter cup (2) is arranged at the bottom of the sealed container, a filter channel (21) is arranged in the middle of the coffee powder filter cup (2), a glue valve (22) is fixed in the filter channel (21), and the glue valve (22) is provided with a linear opening (223).

2. The filter cup according to claim 1, characterized in that: The sealed container comprises a push cylinder (1), the coffee powder filter cup (2) is movably placed in the push cylinder (1), and a sealing ring (3) capable of sliding along the push cylinder (1) is fixed on the upper part of the coffee powder filter cup (2); The upper end of the cup body (5) is a cup mouth, and the barrel (11) on the push cylinder (1) is movably sleeved outside the cup body (5), and the coffee powder filter cup (2) can be hung on the edge of the cup mouth, so that the coffee powder filter cup (2) can slide along the barrel (11) with the cup body (5) as support.

3. The filter cup according to claim 2, characterized in that: The push cylinder (1) comprises a cylinder body (11) and a cover (12); the cylinder body (11) is a hollow cylinder; the upper end of the cylinder body (11) is an opening with an external thread (111); the inner wall of the cover (12) is provided with an internal thread (122) threadably matched with the external thread (111) on the cylinder body (11); and a protrusion (121) is provided at the inner center of the cover (12).

4. The filter cup according to claim 2, characterized in that: The lower end of the rubber valve (22) is provided with a silicone barrier sheet (222) for transversely blocking the outlet thereof, and the linear opening (223) is provided on a side of the silicone barrier sheet (222) away from the center.

5. The filter cup according to claim 2, characterized in that: The outer circumference of the bottom of the cup body (5) is provided with a circle of radial bones (51) for limiting the downward displacement limit position of the push cylinder (1); the inner circle edge of the radial bones (51) is connected to the outer edge of the bottom of the cup body (5); and the outer circle of the radial bones (51) has the same caliber as the lower end opening of the push cylinder (1).

6. The filter cup according to claim 1, characterized in that: The sealed container comprises a hollow coffee can (100), the upper end of the coffee can (100) is sealedly connected to a vacuum cover (101), the coffee powder filter cup (2) is sealedly matched with the lower end of the coffee can (100), and the lower end of the glue valve (22) is provided with two left and right sealing sheets (224), the left and right sealing sheets (224) are arranged in a "V" shape, and the lower ends of the left and right sealing sheets (224) are fitted together to form the linear opening (223).

7. The filter cup according to claim 6, characterized in that: The vacuum cover (101) is in the shape of a cover and is provided with a one-way valve (7) for evacuating the coffee cartridge (100).

8. The filter cup according to claim 7, characterized in that: The vacuum cover (101) is provided with a pressurizing hole (102) for pressurizing the coffee can (100), a rubber plug (8) is provided in the pressurizing hole (102), and the rubber plug (8) is integrally connected to the valve plate of the one-way valve (7).

9. The filter cup according to claim 8, characterized in that: It also includes an air pump device (9) that can be sealed with the vacuum cover (101), and the air pump device (9) is detachably connected to the upper end of the vacuum cover (101).

10. The filter cup according to claim 2 or 6, characterized in that: A filter screen (23) is also installed in the filter channel (21), and the filter screen (23) is located above the glue valve (22).

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