A coffee filtering device

Abstract

The present invention discloses a coffee filtering device, comprising a coffee funnel and a filter pot, wherein the coffee funnel is arranged on the filter pot; the coffee funnel comprises a funnel bottom plate, a funnel body arranged around the funnel bottom plate and a filter net, wherein the filter net covers the inner surface of the funnel body; a deformation ring is arranged on the side wall of the filter pot, a discharge nozzle is arranged at the bottom of the filter pot, a discharge port is arranged at the bottom of the discharge nozzle, a water retaining sheet is arranged in the discharge port, and the water retaining sheets are mutually in conflict with each other to form a sealing structure; when the deformation ring is deformed, the side wall of the filter pot and the discharge nozzle can be deformed, so that the water retaining sheets move and form an opening. The present invention can prevent the accumulation of liquid in the funnel from being blocked, and the liquid can be easily poured out, and the brewing of coffee can be stopped at any time, and the over-extracted residual coffee liquid can be retained in the filter pot without waiting, thereby avoiding over-extraction and dirtying the desktop.

Description

Technical Field

[0001] The present invention relates to the field of coffee equipment, and particularly to a coffee filtering device. Background Art

[0002] The structures of strainer coffee funnels for drip coffee are usually hole structures and mesh structures. For the coffee funnel with a hole structure, the coffee residues gathered at the bottom are likely to block the filter holes at the bottom. At the same time, due to the small size and large number of the filter holes, it is difficult to wash away the coffee residues in the filter holes, resulting in too long extraction time, making the coffee liquid too bitter, affecting the user experience. And if the coffee residues remaining in the filter holes are not washed away, bacteria will breed and mold on the coffee residues, which will affect the user's physical health. For the coffee funnel with a mesh structure, although using the mesh structure can prevent the coffee residues from remaining in the mesh holes and is convenient for cleaning, the coffee funnel with a mesh structure has a soft texture and no strong supporting force. Therefore, the coffee funnel with a mesh structure is likely to deform during the cleaning process, causing losses to the user and being not easy to store.

[0003] On the other hand, after brewing coffee with a coffee funnel, most of the coffee liquid directly flows into a container such as a coffee cup for use, and the funnel needs to be taken out to obtain the coffee liquid. And it takes too long for the coffee liquid in the coffee funnel to drip out, which is inconvenient to use. In addition, if the coffee powder in the coffee funnel is soaked in water for too long, the remaining coffee liquid in the coffee funnel will turn into over-extracted coffee liquid that is bitter and astringent. When the coffee funnel is taken out of the coffee cup, the over-extracted coffee liquid will inevitably drip into the coffee cup or on the table, affecting the user experience.

[0004] Therefore, providing a coffee filtering device that can prevent liquid accumulation and blockage, is convenient for cleaning, can be drunk without waiting for the coffee liquid in the coffee funnel to drip out, and can intercept over-extracted coffee liquid has become an urgent technical problem to be solved. Summary of the Invention

[0005] Another technical problem to be solved by the present invention is to provide a coffee filtering device that can intercept over-extracted coffee liquid, and the user can drink the coffee liquid without waiting for the coffee filtering to be completed.

[0006] The technical problem to be solved by the present invention is to provide a coffee filtering device that can prevent liquid accumulation and blockage in the funnel, is convenient for cleaning, and is easy to pour out.

[0007] To solve the above technical problems, the present invention provides a coffee filtering device, including a coffee funnel and a filter pot, and the coffee funnel is arranged above the filter pot;

[0008] The coffee funnel includes a funnel bottom plate, a funnel body surrounding the funnel bottom plate, and a filter net, and the filter net covers the inner surface of the funnel body;

[0009] A deformation ring is provided on the side wall of the filter pot, a discharge nozzle is provided at the bottom of the filter pot, a discharge port is provided at the bottom of the discharge nozzle, a water retaining sheet is provided in the discharge port, and the water retaining sheets are in contact with each other to form a sealing structure;

[0010] When the deformation ring is deformed, the side wall of the filter pot and the discharge nozzle can be deformed, so that the water retaining plates move and form an opening.

[0011] Preferably, the funnel body is a three-dimensional cone-shaped funnel body that contracts from its top to its bottom;

[0012] The funnel body is provided with a plurality of first filter holes and second filter holes, wherein the first filter holes are arranged above the second filter holes, the second filter holes are polygonal structures, and the first filter holes and the second filter holes are combined with each other and spirally surround the funnel body.

[0013] Preferably, the aperture of the second filter hole is larger than the aperture of the first filter hole, and the aperture of the first filter hole is larger than or equal to the aperture of the mesh of the filter screen;

[0014] The second filter hole is a quadrilateral structure, and the width of the second filter hole gradually decreases along the direction from the funnel body to the funnel bottom plate.

[0015] Preferably, the second filter hole is a hole-shaped structure consisting of a first side, a second side, a third side and a fourth side connected in sequence.

[0016] The first side is set at an angle α1 with the horizontal line, the second side is set at an angle β1 with the vertical line, the third side is set at an angle α2 with the horizontal line, and the fourth side is set at an angle β2 with the vertical line, wherein α1≥α2, β1≥β2.

[0017] Preferably, the lengths of the first side, the second side, the third side and the fourth side are A1, A2, A3 and A4 respectively, wherein A1<A3 and A4<A2.

[0018] Preferably, the bottom plate of the funnel is a circular flat plate, and a discharge hole is provided at the center of the circular flat plate;

[0019] The filter screen covers the discharge hole.

[0020] Preferably, a feed plate is provided on the top of the filter pot, and a first feed port and a second feed port are provided on the feed plate, and the size of the first feed port is larger than the size of the second feed port;

[0021] The second feed opening is arranged at the center of the feed plate, and the first feed openings are arranged around the second feed opening.

[0022] Preferably, the filter pot and the discharge nozzle are elliptical structures, the deformation ring laterally surrounds the side wall of the filter pot, and the circumference of the deformation ring gradually decreases along the side wall of the filter pot toward the bottom of the filter pot to form a stepped structure.

[0023] Preferably, a connecting rib is provided in the filter pot, one end of the connecting rib is connected to the side wall of the filter pot, and the other end is connected to the discharge nozzle.

[0024] Preferably, short ribs are provided between the inner walls of the discharge nozzle, and the arrangement position of the short ribs is lower than the interference position of the water retaining sheet.

[0025] The implementation of the present invention has the following beneficial effects:

[0026] The present invention provides a coffee filtering device, comprising a coffee funnel and a filter pot; a deformation ring is provided on the side wall of the filter pot, a discharge nozzle is provided at the bottom of the filter pot, a discharge port is provided at the bottom of the discharge nozzle, a water retaining sheet is provided in the discharge port, and the water retaining sheets are in contact with each other to form a sealing structure; when the deformation ring is deformed, it can drive the side wall of the filter pot and the discharge nozzle to deform, so that the water retaining sheets move and form an opening, and the coffee liquid will flow out through the opening; when the coffee brewing stops, the funnel and the filter pot are removed from containers such as coffee cups, so that the coffee cups and other containers do not apply force to the deformation ring, thereby resetting the water retaining sheet and sealing the discharge port, so that the over-extracted coffee liquid can be retained.

[0027] In addition, the coffee funnel includes a funnel bottom plate, a funnel body surrounding the funnel bottom plate, and a filter net, the funnel body is provided with a plurality of first filter holes and second filter holes, the filter net covers the inner surface of the funnel body, the second filter holes are polygonal structures, and the first filter holes are arranged above the second filter holes for easy cleaning, so that coffee residues are not easily left. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is a structural diagram of a coffee filtering device of the present invention;

[0029] Figure 2 yes Figure 1 The structural diagram of the coffee funnel shown;

[0030] Figure 3 yes Figure 2 a bottom view of the coffee funnel shown;

[0031] Figure 4 yes Figure 1 The structural diagram of the filter pot shown;

[0032] Figure 5 yes Figure 4 The bottom structure diagram of the filter pot shown;

[0033] Figure 6 is Figure 4 The internal structure diagram of the filter jug shown;

[0034] Figure 7 is Figure 6 The top view of the internal structure of the filter jug shown;

[0035] Figure 8 is Figure 4 The sectional view of the filter jug shown. Specific embodiments

[0036] 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. It is hereby declared that the orientation terms such as up, down, left, right, front, back, inside and outside that appear or will appear in the text of the present invention are only based on the accompanying drawings of the present invention, and they do not specifically limit the present invention.

[0037] Combined with Figures 1 to 8 , the present invention provides a coffee filtering device, including a coffee funnel 1 and a filter jug 2. The coffee funnel 1 is disposed above the filter jug 2. The coffee funnel 1 includes a funnel bottom plate 13, a funnel body 12 surrounding the funnel bottom plate 13 and a filter net 11. A plurality of first filter holes 121 and second filter holes 122 are provided on the funnel body 12. A deformation ring 25 is provided on the side wall of the filter jug 2. A discharge nozzle 24 is provided at the bottom of the filter jug 2. A discharge port 26 is provided at the bottom of the discharge nozzle 24. A water blocking piece 27 is provided in the discharge port 26. The water blocking pieces 27 are in contact with each other to form a sealing structure.

[0038] The ground coffee beans are placed in the coffee funnel 1. By pouring hot water, the coffee liquid is filtered through the filter net 11 and flows through the first filter holes 121, the second filter holes 122 and the funnel bottom plate 13 into the filter jug 2 for storage. By applying force to the deformation ring 25 using a container such as a coffee cup, the deformation ring 25 deforms. When the deformation ring 25 deforms, it can drive the side wall of the filter jug 2 and the discharge nozzle 24 to deform, so that the water blocking pieces 27 move relative to each other to form an opening, and thus the coffee liquid flows out through the opening into the coffee cup without waiting for the coffee funnel to complete filtration. When the filter jug 2 is taken out of the container, the water blocking pieces 27 will reset and seal the discharge port 26, and the over-extracted coffee liquid is retained in the filter jug 2.

[0039] Among them, combined with Figures 1 to 3, in order to prevent liquid accumulation and blockage in the coffee funnel 1 and facilitate cleaning, the filter net 11 covers the inner surface of the funnel body 12. The second filter holes 122 are of a polygonal structure, the second filter holes 122 are larger than the first filter holes 121, and the first filter holes 121 are arranged above the second filter holes 122. Specifically, during the coffee filtering process, the main filtering function is performed by the filter net 11, especially the filter net 11 near the bottom of the coffee funnel 1. Although the filter net 11 is convenient to clean and not prone to liquid accumulation and blockage, its texture is relatively soft and there is no strong supporting force. Therefore, by providing the funnel body 12, the filter net 11 covers and adheres to the inner surface of the funnel body 12 so that the funnel body 12 provides a supporting function for the filter net 11. Further, since coffee residues mainly accumulate on the filter net 11 near the bottom of the coffee funnel 1, therefore, by arranging the first filter holes 121 above the second filter holes 122, the coffee liquid filtered by the filter net 11 near the bottom of the coffee funnel 1 flows out through the second filter holes 122. And because the second filter holes 122 are of a polygonal structure and the second filter holes 122 are larger than the first filter holes 121, it is not easy for coffee residues to remain in the second filter holes 122, and at the same time it is also easier for users to clean the filter net 11 and the second filter holes 122. Among them, the aperture of the first filter holes 121 is greater than or equal to the aperture of each grid in the filter net 11. The reason is that in conventional coffee filtering, coffee residues are not easy to remain on the filter net 11 near the top of the coffee funnel 1. Therefore, the corresponding first filter holes 121 do not need to consider the problem of coffee residue retention, and the first filter holes 121 only need to be able to let the coffee liquid flow out. Preferably, the second filter holes 122 are of a quadrilateral structure, which is convenient for users to clean while not affecting the supporting function of the funnel body 12 on the filter net 11.

[0040] Further, in order to make the coffee liquid easier to pour out from the coffee funnel 1, the funnel body 12 is a three-dimensional conical funnel body 12 formed by shrinking from its top to its bottom. The first filter holes 121 and the second filter holes 122 are combined with each other and spirally surround the funnel body 12. Specifically, the funnel bottom plate 13 is a circular flat plate, and the connected funnel body 12 is a three-dimensional conical funnel body 12 formed by shrinking from the top to the bottom. By combining the first filter holes 121 and the second filter holes 122 with each other and spirally surrounding the three-dimensional conical funnel body 12, the coffee liquid can perform a centrifugal motion along the funnel body 12 and is more likely to flow out. Among them, the width of the second filter holes 122 gradually decreases along the direction of the funnel body 12 towards the funnel bottom plate 13, so that the second filter holes 122 can spirally surround the funnel body 12. Specifically, the second filter holes 122 are a hole-shaped structure composed of a first side 1221, a second side 1222, a third side 1223 and a fourth side 1224 connected in sequence; the first side 1221 is arranged at an angle α1 with the horizontal line; the second side 1222 is arranged at an angle β1 with the vertical line, the third side 1223 is arranged at an angle α2 with the horizontal line, and the fourth side 1224 is arranged at an angle β2 with the vertical line. Among them, α1≥α2, β1≥β2, so that the second filter holes 122 can guide the coffee liquid to rotate in the same direction and perform a centrifugal motion. Further, the lengths of the first side 1221, the second side 1222, the third side 1223 and the fourth side 1224 are A1, A2, A3, A4 respectively. Among them, A1<A3, A4<A2, so that the hole-shaped structure of the second filter holes 122 is more adapted to the three-dimensional conical structure of the funnel body 12, so that the second filter holes 122 can further guide the coffee liquid to rotate in one direction and the coffee liquid is more likely to flow out.

[0041] In addition, in order to enable the coffee liquid to also flow out from the bottom of the coffee funnel 1, a discharge hole 131 is provided at the center of the funnel bottom plate 13. Further, a filter net 11 covers the discharge hole 131 to prevent coffee residues from falling into the filter pot 2. Among them, the size of the discharge hole 131 needs to be larger than the size of each grid in the filter net 11 and larger than the size of the first filter holes 121, so that the liquid is more likely to flow out and it is convenient to clean. Preferably, in order to protect the coffee funnel 1, a silica gel ring 14 is provided at the outer edge of the top of the funnel body 12 to prevent the coffee funnel 1 from being damaged due to collision.

[0042] Therefore, through the specific settings of the filter net 11, the funnel body 12 and the funnel bottom plate 13, the coffee funnel 1 can prevent liquid accumulation and blockage inside the funnel, is convenient for users to clean, and the coffee liquid is easy to pour out.

[0043] Combined Figure 1 with Figures 4 to 8In order to intercept the over-extracted coffee liquid and allow the user to drink the coffee liquid without waiting for the coffee filtering to be completed, a deformation ring 25 is provided on the side wall of the filter pot 2, and a water retaining plate 27 is provided in the discharge nozzle 24. Once the deformation ring 25 is subjected to lateral pressure, openings will appear between the water retaining plates 27. Specifically, the filter pot 2 and the components on the filter pot 2 are made of silicone with strong elastic deformation ability. The filter pot 2 and the discharge nozzle 24 are preferably elliptical structures; the deformation ring 25 laterally surrounds the side wall of the filter pot 2, and when the deformation ring 25 is deformed, it will drive the side wall of the filter pot 2 to deform, so that it changes from an elliptical structure to a quasi-circular or circular structure; the shape change of the side wall of the filter pot 2 will drive the bottom of the filter pot 2 and the discharge nozzle 24 located at the bottom of the filter pot 2 to deform, so that the discharge nozzle 24 changes from an elliptical structure to a quasi-circular or circular structure; at this time, due to the shape change of the discharge nozzle 24, the water retaining plates 27 move and form an opening, so that the coffee liquid flows out of the filter pot 2 without waiting for the coffee funnel 1 to complete filtering. Furthermore, when brewing coffee is stopped, the coffee filter device is removed from the coffee cup so that the coffee cup or other container does not exert force on the deformation ring 25, and the water retaining plate 27 will be reset and seal the discharge port 26 to seal the over-extracted coffee liquid and prevent the coffee liquid from dripping into the container or the desktop.

[0044] Preferably, in order to make it easier for the water retaining sheets 27 to move and form an opening, short ribs 29 are provided between the inner walls of the discharge nozzle 24. The setting position of the short ribs 29 is lower than the contact position of the water retaining sheets 27. When the discharge nozzle 24 is deformed, the short ribs 29 will pull the water retaining sheets 27 to cause it to move and form a larger opening, so that the coffee liquid can flow out more easily. More preferably, a connecting rib 28 is provided in the filter pot 2, one end of which is connected to the side wall of the filter pot 2, and the other end is connected to the discharge nozzle 24, so that the water retaining sheets 27 are further easier to be pulled apart, while also ensuring that the connection between the discharge nozzle 24 and the filter pot 2 is stable.

[0045] Furthermore, in order to enable the water retaining plate 27 to form a sealing structure and to support the coffee liquid in the filter pot 2 when not affected by external force, the water retaining plate 27 includes a first water retaining plate 271 and a second water retaining plate 272, and the first water retaining plate 271 and the second water retaining plate 272 are in contact with each other to form a sealing structure, and the first water retaining plate 271 and the second water retaining plate 272 have an arc-shaped extension portion 273, and the arc-shaped extension portion 273 is formed by extending from the edge of the discharge port 26 to the center of the discharge nozzle 24 to prevent the coffee liquid from accidentally flowing out.

[0046] In addition, combined Figure 1 , Figure 5 and Figure 8 In order to enable different types of coffee containers to exert force on the filter pot 2 to deform it, the circumference of the deformation circle 25 gradually decreases along the side wall of the filter pot 2 toward the bottom of the filter pot 2, forming a stepped structure.

[0047] On the other hand, in combination with Figure 1 、 Figure 3 and Figure 4 , in order to facilitate the feeding of the filter jug 2, a feeding plate 21 is provided at the top of the filter jug 2. A first feeding port 22 and a second feeding port 23 are provided on the feeding plate 21. The second feeding port 23 is provided at the center of the feeding plate 21, and the first feeding port 22 is arranged around the second feeding port 23, so that the coffee liquid flowing out of the coffee funnel 1 can more easily flow into the filter jug 2, and the over-extracted coffee liquid can be discharged from the filter jug 2. Further, the funnel bottom plate 13 is fitted to the second feeding port 23. The shape and diameter of the second feeding port 23 are adapted to the shape and diameter of the funnel bottom plate 13. The discharge hole 131 of the funnel bottom plate 13 is located within the second feeding port 23, facilitating the coffee liquid to flow from the discharge hole 131 and through the second feeding port 23 into the filter jug 2, and preventing the coffee liquid from dripping to places outside the feeding plate 21. Preferably, the feeding plate 21 includes a first flat plate 211 and a second flat plate 212. The second flat plate 212 is recessed inward to form the first flat plate 211. The first feeding port 22 and the second feeding port 23 are provided on the first flat plate 211, so that the coffee liquid is not likely to overflow from the feeding plate 21.

[0048] Therefore, through the specific settings of each part of the filter jug 2, not only can the over-extracted part of the coffee liquid be intercepted in the filter jug 2, but also the coffee liquid is not likely to overflow from the feeding plate 21.

[0049] The working principle of the present invention is as follows:

[0050] The ground coffee beans are placed in the coffee funnel 1. By pouring hot water, the coffee liquid is filtered through the filter net 11 and flows through the first filter holes 121, the second filter holes 122 and the funnel bottom plate 13 to be stored in the filter jug 2. Among them, the first filter holes 121 are arranged above the second filter holes 122. The first filter holes 121 and the second filter holes 122 are combined with each other and spirally surround the three-dimensional conical funnel body 12, providing centrifugal force for the coffee liquid to make it flow out quickly. In addition, since the second filter holes 122 are polygonal and larger than the first filter holes 121, the user can clean the filter net 11 through the second filter holes 122.

[0051] During the filtering process of the coffee funnel 1, the user can use a container such as a coffee cup to apply force to the deformation ring 25 laterally to deform it. When the deformation ring 25 is deformed, the side wall of the filter pot 2 is deformed, so that it moves toward the center of the filter pot 2. The deformation of the side wall of the filter pot 2 causes the bottom of the filter pot 2 and the discharge spout 24 located at the bottom of the filter pot 2 to deform, so that the first water retaining sheet 271 and the second water retaining sheet 272 are pulled apart by the discharge spout 24, so that an opening is formed between the first water retaining sheet 271 and the second water retaining sheet 272, and the coffee liquid flows out into the container such as the coffee cup. When the deformation ring 25 is not subjected to external force, the first water retaining sheet 271 and the second water retaining sheet 272 will be reset and conflict with each other to form a sealing structure for the discharge port 26.

[0052] The above is a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the principle of the present invention. These improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A coffee filtering device, characterized in that, It comprises a coffee funnel and a filter pot, wherein the coffee funnel is arranged on the filter pot; The coffee funnel comprises a funnel bottom plate, a funnel body arranged around the funnel bottom plate, and a filter screen, wherein the filter screen covers the inner surface of the funnel body; A deformation ring is provided on the side wall of the filter pot, a discharge nozzle is provided at the bottom of the filter pot, a discharge port is provided at the bottom of the discharge nozzle, a water retaining sheet is provided in the discharge port, and the water retaining sheets are in contact with each other to form a sealing structure; When the deformation ring is deformed, the side wall of the filter pot and the discharge nozzle can be deformed, so that the water retaining plates move and form an opening; The filter pot and the discharge nozzle are elliptical structures. The deformation ring transversely surrounds the side wall of the filter pot. The circumference of the deformation ring gradually decreases along the side wall of the filter pot toward the bottom of the filter pot, forming a stepped structure.

2. The coffee filtering device according to claim 1, wherein, The funnel body is a three-dimensional cone-shaped funnel body that contracts from its top to its bottom; The funnel body is provided with a plurality of first filter holes and second filter holes, wherein the first filter holes are arranged above the second filter holes, the second filter holes are polygonal structures, and the first filter holes and the second filter holes are combined with each other and spirally surround the funnel body.

3. The coffee filtering device according to claim 2, wherein, The aperture of the second filter hole is larger than that of the first filter hole, and the aperture of the first filter hole is larger than or equal to the aperture of the mesh of the filter screen; The second filter hole is a quadrilateral structure, and the width of the second filter hole gradually decreases along the direction from the funnel body to the funnel bottom plate.

4. The coffee filtering device according to any one of claims 2-3, characterized in that, The second filter hole is a hole-shaped structure formed by sequentially connecting the first side, the second side, the third side and the fourth side. The first side is set at an angle α1 with the horizontal line, the second side is set at an angle β1 with the vertical line, the third side is set at an angle α2 with the horizontal line, and the fourth side is set at an angle β2 with the vertical line, wherein α1≥α2, β1≥β2.

5. The coffee filtering device according to claim 4, characterized in that, The lengths of the first side, the second side, the third side and the fourth side are A1, A2, A3 and A4 respectively, wherein A1<A3 and A4<A2.

6. The coffee filtering device according to claim 1, characterized in that, The bottom plate of the funnel is a circular flat plate, and a discharge hole is provided at the center of the circular flat plate; The filter screen covers the discharge hole.

7. The coffee filtering device according to claim 1, wherein, A feed plate is provided on the top of the filter pot, and a first feed port and a second feed port are provided on the feed plate, wherein the size of the first feed port is larger than the size of the second feed port; The second feed opening is arranged at the center of the feed plate, and the first feed openings are arranged around the second feed opening.

8. The coffee filtering device according to claim 1, characterized in that, A connecting rib is provided in the filter pot, one end of the connecting rib is connected to the side wall of the filter pot, and the other end is connected to the discharge nozzle.

9. The coffee filtering device according to claim 1, wherein, Short ribs are arranged between the inner walls of the discharge nozzle, and the arrangement position of the short ribs is lower than the interference position of the water retaining plate.

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