Filter cup and pour-over coffee maker set having same

Abstract

The present invention relates to a filter cup and a pour-over coffee maker set having same. The filter cup comprises a cup body, wherein the cup body comprises a cup bottom and a cup wall extending upwards from the periphery of the cup bottom; a containing chamber for allowing a filter paper to be placed therein is formed on an inner side of the cup bottom and an inner side of the cup wall; an annular groove is provided in a surface of the inner side of the cup bottom, and several water output holes running through the cup bottom are provided in the annular groove; and on the surface of the inner side of the cup bottom, bounded by the annular groove, a first surface on an outer side of the annular groove and a second surface on an inner side of the annular groove jointly form a supporting face for supporting the filter paper. By means of the provision of the annular groove and the provision of the several water output holes in the groove, the accumulation of a brewed substance at the bottom is avoided, such that a water output channel is enlarged, and water flows out more evenly; the supporting area for the filter paper is further increased; the outflow speed and direction of brewing liquid is further effectively controlled, thereby achieving complete extraction and improving the taste of the brewed substance; moreover, the combined design of the first surface and the second surface prevents the filter paper from shifting or being broken easily.

Description

Filter cup, and pour-over coffee maker set with the filter cup Technical Field

[0001] This invention relates to cups and more specifically, to a filter cup and a pour-over coffee maker set having the filter cup. Background Technology

[0002] Existing filter cup designs are relatively simple, generally featuring a large outlet at the bottom of the cup (such as the V60 filter cup). Filter paper is placed inside the cup, and the brewed beverage is then placed inside the filter paper for filtration. Because the existing filter paper is typically cone-shaped or frustum-shaped and placed directly inside the filter cup, while the brewed beverage usually accumulates at the bottom, the water flow rate is relatively fast, making complete extraction impossible. Furthermore, the filter paper is prone to shifting or breaking, thus affecting the taste and quality of the beverage and making it difficult to guarantee the brewing effect. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a filter cup and a pour-over coffee maker set having the filter cup.

[0004] The technical solution adopted by the present invention to solve its technical problem is: to construct a filter cup, including a cup body, wherein the cup body is configured to hold filter paper for filtration;

[0005] The cup body includes a cup bottom and a cup wall extending upward from the periphery of the cup bottom; a chamber for placing the filter paper is formed on the inner side of the cup bottom and the cup wall;

[0006] The inner surface of the cup bottom is provided with an annular groove, and a plurality of water outlet holes penetrating the cup bottom are provided in the annular groove; on the inner surface of the cup bottom, with the annular groove as the boundary, the first surface outside the annular groove and the second surface inside the annular groove share a common support surface to support the filter paper.

[0007] Furthermore, the second surface is preferably petal-shaped, and the annular groove is a star-shaped groove formed around the outer edge of the second surface.

[0008] Furthermore, it is preferable that the water outlet is located at least at the protruding part of the petal on the annular groove and / or at the inward portion between two adjacent petals.

[0009] Furthermore, preferably, the cup body is a conical flat-bottomed cup body, wherein the cup wall has a conical structure, the cup bottom has a flat-bottomed structure, the filter paper includes an inverted conical sidewall and a flat bottom formed at the bottom of the sidewall, and the filter paper forms a filter chamber that matches the container.

[0010] Furthermore, preferably, the cup wall includes a conical segment and a straight segment extending along the height direction from the outer edge of the open end of the conical segment, and the outer edge of the sidewall of the filter paper is flush with the outer edge of the straight segment or the outer edge of the sidewall of the filter paper is slightly lower than the outer edge of the straight segment.

[0011] Furthermore, preferably, the cup body extends axially to form an inner extension on the side away from the cup wall, and the inner extension forms a plurality of locking parts in the circumferential direction, wherein the distance from the central axis of the inner extension is not equal at the same height of adjacent locking parts.

[0012] Furthermore, preferably, the cup body has a flat, flat-bottomed structure, wherein the cup wall has a flat, columnar structure, the cup bottom has a flat-bottomed structure, and the corresponding filter paper is a planar filter paper.

[0013] Furthermore, preferably, the filter paper has a pre-formed annular recess corresponding to the shape of the annular groove, and the filter paper is in contact with the bottom of the cup.

[0014] The present invention also provides a pour-over coffee maker set, including the filter cup, filter paper and pot body disposed at the bottom of the filter cup as described above; the water outlet is connected to the pot body.

[0015] Furthermore, preferably, the cup body is a conical flat-bottomed cup body, and a retaining ring is sleeved on the outer side of the inner extension of the filter cup, the retaining ring being used to fix the filter cup to the kettle body.

[0016] Furthermore, preferably, the cup body is a conical flat-bottomed cup body, and the cup body is provided with a water distribution cup that covers the top of the cup wall, and the water distribution cup is provided with water distribution holes.

[0017] Furthermore, it is preferable that the water distribution hole corresponds to the water outlet hole on the annular groove.

[0018] Furthermore, preferably, the water equalization cup is covered with a matching quantitative water storage cup, and the quantitative water storage cup is provided with a thermosiphon structure.

[0019] Furthermore, preferably, the bottom of the metering water storage cup includes an inclined surface that slopes from the outside to the inside, a cylindrical main body portion having a predetermined diameter and a hot water outlet for dripping formed in the central portion, and the cylindrical main body portion extending radially downward through the bottom of the metering water storage cup to form a flat bottom wall portion with a predetermined width; the metering water storage cup also includes a cover that covers the cylindrical main body portion, and a gap is left between the cover and the inclined surface, and a siphon chamber is formed between the cover and the cylindrical main body portion.

[0020] Furthermore, preferably, the cup body is a flat cup body, the cup wall is provided with a water distribution cup, the water distribution cup is connected to a water storage cup, and the water storage cup is provided with a piston pumping structure.

[0021] The filter cup and pour-over coffee maker set incorporating the present invention have the following beneficial effects: The filter cup features an annular groove on the inner side of its bottom, with several water outlet holes penetrating the bottom within this groove. The first surface outside the annular groove and the second surface inside the groove share a common support surface for the filter paper on the inner surface of the bottom. By creating the annular groove and the water outlet holes, the accumulation of brewed ingredients at the bottom is prevented, the water flow is increased, resulting in more even water distribution. This also increases the support area for the filter paper and effectively controls the flow rate and direction of the brewed liquid, thereby achieving complete extraction and enhancing the taste of the brewed beverage. Furthermore, the shared design of the first and second surfaces makes the filter paper more stable when placed, preventing displacement or damage.

[0022] Because the pour-over coffee maker set includes the filter cup and filter paper, and the bottom of the filter cup covers the opening of the pot body, and the water outlet is connected to the pot body, the filtered liquid contained in the pot body has a better drinking taste. Attached Figure Description

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments. In the accompanying drawings:

[0024] Figure 1 is a top view of a first embodiment of the filter cup of the present invention;

[0025] Figure 2 is a side view of the three-dimensional structure in Figure 1;

[0026] Figure 3 is a front view of Figure 1;

[0027] Figure 4 is a cross-sectional view of a second embodiment of the filter cup of the present invention;

[0028] Figure 5 is an exploded view of the first embodiment of the pour-over coffee pot sleeve of the present invention;

[0029] Figure 6 is a front view of Figure 5;

[0030] Figure 7 is a cross-sectional view along one direction of Figure 6;

[0031] Figure 8 is a cross-sectional view of Figure 6 from another direction;

[0032] Figure 9 is an exploded perspective view of a specific structure of an embodiment of the quantitative water storage cup of the present invention;

[0033] Figure 10 is a cross-sectional view of Figure 9. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] Referring to Figures 1-4, the present invention provides a filter cup, including a cup body 10, which is configured to hold filter paper for filtration. The cup body 10 includes a cup bottom 11 and a cup wall 12 extending upward from the periphery of the cup bottom 11; a chamber 13 for placing the filter paper is formed on the inner side of the cup bottom 11 and the cup wall 12; an annular groove 111 is provided on the inner surface of the cup bottom 11, and a plurality of water outlet holes 112 penetrating the cup bottom 11 are provided in the annular groove 111; on the inner surface of the cup bottom 11, with the annular groove 111 as the boundary, a first surface 113 on the outer side of the annular groove 111 and a second surface 114 on the inner side share a common support surface for supporting the filter paper.

[0036] The filter cup of this invention features an annular groove 111 with several water outlet holes 112, increasing the water outlet channel for more uniform water flow. This also increases the support area for the filter paper and effectively controls the flow rate and direction of the brewing liquid. Furthermore, the shared design of the first surface 113 and the second surface 114, along with the annular groove 111, enhances structural strength, providing stable support for the filter paper and making it more stable when placed. This increases the contact area between the filter paper and the bottom 11 of the cup, improving filtration efficiency and reducing the risk of displacement or damage. The brewed material is also distributed within the annular groove 111, preventing accumulation at the bottom. The brewing liquid flows out through the water outlet holes 112, achieving complete extraction and improving the taste of the brewed material. By adjusting the shape, size, and thickness of the annular groove 111, the accumulation thickness of the brewed material and the water flow rate can be adjusted, thereby improving the stability of the extraction process.

[0037] In one specific embodiment, as shown in Figures 1 and 4, to further improve the stability of the filter paper and provide a better extraction taste for the brewed product, the second surface 114 is designed in a petal shape, and the annular groove 111 is a star-shaped groove formed around the outer edge of the second surface 114. For example, the second surface 114 may be a petal shape with six petals, and the annular groove 111 may be a star-shaped groove with six petal protrusions formed around the outer edge of the second surface 114. The number of petals on the second surface 114 and the number of petals on the annular groove 111 are designed as needed.

[0038] In a preferred embodiment, the water outlet 112 is at least located at the petal protrusions on the annular groove 111 and / or at the constricted portion between two adjacent petals. This can be understood as several water outlets 112 being at least spaced apart at the petal protrusions on the annular groove 111, or several water outlets 112 being at least spaced apart at the constricted portion between two adjacent petals on the annular groove 111, or several water outlets 112 being simultaneously spaced apart at the petal protrusions and the constricted portion between two adjacent petals on the annular groove 111. This arrangement helps to evenly distribute the water outlet channel, that is, to disperse the water flow, prevent the accumulation of the brewed material, prevent clogging, and thus achieve complete extraction and improve the taste of the brewed material. Of course, the water outlets 112 can also be located at other positions on the annular groove 111, and the location and number of water outlets 112 are designed as needed.

[0039] Figures 1-3 show a first embodiment of the filter cup of the present invention. In this embodiment, the cup body 10 is a conical flat-bottomed cup body 10, wherein the cup wall 12 has a conical structure and the cup bottom 11 has a flat-bottomed structure. In order to adapt to this cup shape, the filter paper is designed to have an inverted conical sidewall and a flat bottom formed at the bottom of the sidewall. A filter chamber matching the chamber 13 is formed inside the filter paper.

[0040] In a specific embodiment, as shown in Figures 2-3, the cup wall 12 includes a conical segment 121 and a straight segment 122 extending along the height direction from the outer edge of the open end of the conical segment 121. The outer edge of the sidewall of the filter paper is flush with the outer edge of the straight segment 122, or the outer edge of the sidewall of the filter paper is slightly lower than the outer edge of the straight segment 122. The design of the straight segment 122 prevents the filter paper from protruding, making it convenient to cover the cup wall 12 with the water equalization cup 60 later, and to tightly fasten it with the water equalization cup 60. At the same time, it ensures the stability and tight fit between the filter paper and the filter cup, and avoids the displacement of the filter paper.

[0041] In a specific embodiment, as shown in Figures 2-3, the cup body 10 extends axially to form an inner extension 14 on the side away from the cup wall 12. The inner extension 14 forms multiple locking parts circumferentially, and the distances from the central axis of adjacent locking parts at the same height are unequal. This design of the inner extension 14 helps improve the structural strength and stability of the cup body 10, and also allows for later engagement with the pot body 40, with the inner extension 14 extending into the pot body 40. It is connected to the kettle body 40; the design of the clamping part is to be sleeved with the retaining ring 50 later. The retaining ring 50 is sleeved outside the clamping part and is used to fix the filter cup to the kettle body 40. Since the distance from the same height position of the adjacent clamping parts to the central axis of the inner extension 14 is not equal, the uneven clamping part formed by the retaining ring 50 in the circumferential direction of the inner extension 14 makes it possible to make the retaining ring 50 and the clamping part tightly engaged by slightly rotating the retaining ring 50, so that the filter cup and the kettle body 40 are more tightly connected.

[0042] Figure 4 shows a second embodiment of the filter cup of the present invention. In this embodiment, the cup body 10 has a flat, flat-bottomed structure, wherein the cup wall 12 has a flat, columnar structure, the cup bottom 11 has a flat-bottomed structure, and the corresponding filter paper is a flat filter paper. Further, in order to match the annular groove 111 of the cup bottom 11, it is preferable that an annular recess is pre-formed on the filter paper corresponding to the shape of the annular groove 111, so that the filter paper fits tightly against the cup bottom 11, preventing the filter paper from curling at the outer edge due to the presence of the annular groove 111, thus avoiding affecting the extraction effect and the taste of the extracted material.

[0043] As shown in Figures 5-8, the present invention also provides a pour-over coffee maker set, including a filter cup 20, filter paper, and a pot body 40 disposed at the bottom 11 end of the filter cup 20; the water outlet 112 is connected to the pot body 40, allowing filtered coffee or other beverages to flow into the pot body 40, so that the filtrate contained in the pot body 40 has a better drinking taste.

[0044] Figures 5-8 illustrate a first embodiment of the pour-over coffee maker kit of the present invention. The filter cup 20 has a cup body 10 with a conical flat bottom. A retaining ring 50 is fitted on the outer side of the inner extension 14 of the filter cup 20. The retaining ring 50 is used to fix the filter cup 20 to the pot body 40. Further, an inner extension 14 is formed on the side of the cup body 10 away from the cup wall 12, extending axially. The inner extension 14 forms a plurality of locking parts in the circumferential direction. The distance from the same height position of adjacent locking parts to the central axis of the inner extension 14 is not equal. The retaining ring 50 is fitted outside the locking parts. Since the distance from the same height position of adjacent locking parts to the central axis of the inner extension 14 is not equal, the uneven locking parts formed by the retaining ring 50 in the circumferential direction of the inner extension 14 allow the retaining ring 50 to be tightly engaged with the locking parts by slightly rotating the retaining ring 50, making the filter cup 20 and the pot body 40 more tightly connected.

[0045] In one specific embodiment, as shown in Figures 5-8, the cup body 10 is a conical flat-bottomed cup body 10. A water distribution cup 60 is provided on the cup body 10, covering the top of the cup wall 12. The water distribution cup 60 has water distribution holes 61. The water distribution cup 60 makes the water flow distribution more uniform. Furthermore, preferably, the water distribution holes 61 correspond to the water outlet holes 112 on the annular groove 111. This correspondence between the water distribution holes 61 and the water outlet holes 112 on the annular groove 111 helps to achieve a uniform water flow distribution.

[0046] In one specific embodiment, as shown in Figures 5-8, the equalizing cup 60 is covered with a matching quantitative water storage cup 70. The quantitative water storage cup 70 is provided with a thermosiphon structure 71. The thermosiphon structure 71 is prior art and can be an existing thermosiphon structure 71, such as the thermosiphon structure 71 in patent application JP2010-46142A. When hot water is added to the reference amount that causes the thermosiphon structure 71 to produce a siphon phenomenon, the reference amount can be set based on the size matching of its structure. The predetermined amount of hot water is drawn into the equalizing cup 60. This design allows users to easily control the water flow rate and water volume during the brewing process, thereby improving the extracted taste.

[0047] In one specific embodiment, as shown in Figures 5-10, the bottom of the metering water storage cup 70 includes an inclined surface 72 inclined from the outside to the inside, a cylindrical main body portion 73 with a predetermined diameter and a hot water outlet for dripping formed in the central part, and the cylindrical main body portion 73 extending radially downward through the bottom 11 of the metering water storage cup 70 to form a flat bottom wall portion 74 with a predetermined width; the metering water storage cup 70 also includes a cover 75 covering the cylindrical main body portion 73, and a gap is left between the cover 75 and the inclined surface 72. A siphon chamber 76 is formed between the cover 75 and the cylindrical main body portion 73. The chamber outside the cover 75, the siphon chamber 76, the inner cavity of the cylindrical main body portion 73, and the inner cavity of the flat bottom wall portion 74 form a hot water channel. The inclined surface 72, the cylindrical main body portion 73, the flat bottom wall portion 74, and the cover 75 together form a thermosiphon structure 71. In this structure, when the amount of hot water in the metering cup 70 exceeds the baseline of the structure, hot water overflows from the cylindrical wall of the cylindrical main body 73. The hot water flows in and is supplied to the lower equalizing cup 60 through the flat bottom wall portion 74.

[0048] Furthermore, the metering water storage cup 70 preferably also includes a support member 77, as shown in Figures 9-10. The support member 77 is provided with a slot 771, and the cover 75 is inserted into the slot 771. The support member 77 is used to support the cover 75, and a gap is left between the cover 75 and the inclined surface 72, so that when hot water is added to the metering water storage cup 70, the hot water can enter the siphon chamber 76 through the gap.

[0049] This embodiment shows a second embodiment of the pour-over coffee maker set. The filter cup 20 has a flat cup body 10. A matching water distribution cup 60, such as a cylindrical water distribution cup 60, is provided on the cup wall 12. A matching metering water storage cup, such as a cylindrical metering water storage cup, is connected to the water distribution cup 60. The metering water storage cup is provided with a piston pumping structure. The piston pumping structure is existing technology. This design allows users to easily control the water flow rate and water volume during the brewing process.

[0050] The filter cup 20 and the pour-over coffee maker set having the filter cup 20 of the present invention have the following beneficial effects: The filter cup 20 has an annular groove 111 on the inner side of the bottom 11, and a plurality of water outlet holes 112 penetrating the bottom 11 in the annular groove 111. On the inner surface of the bottom 11, the first surface 113 on the outer side of the annular groove 111 and the second surface 114 on the inner side share a common support surface for the filter paper, with the annular groove 111 as the boundary. By setting the annular groove 111 and setting a plurality of water outlet holes 112 in the groove, the brewing material is prevented from accumulating at the bottom, the water outlet channel is increased, the water outlet is more uniform, the support area of ​​the filter paper is increased, and the flow rate and direction of the brewing liquid are effectively controlled, thereby achieving complete extraction and improving the taste of the brewed material. At the same time, the shared design of the first surface 113 and the second surface 114 makes the filter paper more stable when placed, and it is not easy for it to shift or break.

[0051] Because the pour-over coffee maker set has the filter cup 20 and filter paper, and the bottom of the filter cup 20 covers the opening of the pot body 40, and the water outlet 112 is connected to the pot body 40, the filtered liquid contained in the pot body 40 has a better drinking taste.

[0052] It is understood that the above embodiments only illustrate preferred embodiments of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can freely combine the above technical features without departing from the concept of the present invention, and can also make several modifications and improvements, all of which fall within the protection scope of the present invention. Therefore, all equivalent transformations and modifications made with respect to the scope of the claims of the present invention should fall within the scope of the claims of the present invention.

Claims

1. A filter cup, comprising a cup body configured to hold filter paper for filtration; characterized in that, The cup body includes a cup bottom and a cup wall extending upward from the periphery of the cup bottom; a chamber for placing the filter paper is formed on the inner side of the cup bottom and the cup wall; The inner surface of the cup bottom is provided with an annular groove, and a plurality of water outlet holes penetrating the cup bottom are provided in the annular groove; on the inner surface of the cup bottom, with the annular groove as the boundary, the first surface outside the annular groove and the second surface inside the annular groove share a common support surface to support the filter paper.

2. The filter cup according to claim 1, characterized in that, The second surface is petal-shaped, and the annular groove is a star-shaped groove formed around the outer edge of the second surface.

3. The filter cup according to claim 2, characterized in that, The water outlet is located at least at the protruding part of the petal on the annular groove and / or at the inward portion between two adjacent petals.

4. The filter cup according to claim 1, characterized in that, The cup body is a conical flat-bottomed cup body, wherein the cup wall is a conical structure and the cup bottom is a flat-bottomed structure, the filter paper includes an inverted conical sidewall and a flat bottom formed at the bottom of the sidewall, and the filter paper forms a filter chamber that matches the container.

5. The filter cup according to claim 4, characterized in that, The cup wall includes a conical segment and a straight segment extending along the height direction from the outer edge of the open end of the conical segment. The outer edge of the sidewall of the filter paper is flush with the outer edge of the straight segment or the outer edge of the sidewall of the filter paper is slightly lower than the outer edge of the straight segment.

6. The filter cup according to claim 4, characterized in that, The cup body extends axially to form an inner extension on the side away from the cup wall. The inner extension forms multiple locking parts in the circumferential direction. The distances from the central axis of the inner extension to the same height of adjacent locking parts are not equal.

7. The filter cup according to claim 1, characterized in that, The cup body has a flat, flat-bottomed structure, wherein the cup wall has a flat, columnar structure, the cup bottom has a flat-bottomed structure, and the corresponding filter paper is a planar filter paper.

8. The filter cup according to claim 7, characterized in that, The filter paper has a pre-formed annular recess corresponding to the shape of the annular groove, and the filter paper fits into the bottom of the cup.

9. A pour-over coffee maker set, characterized in that, It includes the filter cup, filter paper, and a pot body disposed at the bottom end of the filter cup as described in any one of claims 1 to 8; the water outlet is connected to the pot body.

10. The pour-over coffee maker set according to claim 9, characterized in that, The cup body is a conical flat-bottomed cup body, and a retaining ring is sleeved on the outer side of the inner extension of the filter cup. The retaining ring is used to fix the filter cup to the kettle body.

11. The pour-over coffee maker set according to claim 9, characterized in that, The cup body is a conical flat-bottomed cup body, and a water equalization cup is provided on the cup body to cover the top of the cup wall. The water equalization cup has water equalization holes.

12. The pour-over coffee maker set according to claim 11, characterized in that, The water distribution hole corresponds to the water outlet hole on the annular groove.

13. The pour-over coffee maker set according to claim 11, characterized in that, The equalization cup is covered with a matching quantitative water storage cup, which is equipped with a thermosiphon structure.

14. The pour-over coffee maker set according to claim 13, characterized in that, The bottom of the metering water storage cup includes an inclined surface that slopes from the outside to the inside, a cylindrical main body with a predetermined diameter and a hot water outlet for dripping formed in the central part, and a flat bottom wall portion with a predetermined width extending radially downward through the bottom of the metering water storage cup. The metering water storage cup also includes a cover that covers the cylindrical main body, with a gap between the cover and the inclined surface, and a siphon chamber formed between the cover and the cylindrical main body.

15. The pour-over coffee maker set according to claim 14, characterized in that, The quantitative water storage cup also includes a support member with a slot. The cover is inserted into the slot, and the support member leaves a gap between the cover and the inclined surface.

16. The pour-over coffee maker set according to claim 9, characterized in that, The cup body is a flat cup body, and a water equalization cup is provided on the cup wall. A metering water storage cup is connected to the water equalization cup, and a piston pumping structure is provided on the metering water storage cup.

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