Coffee filter cup with foaming function

Abstract

The invention discloses a coffee filter cup with a foaming function. The coffee filter cup comprises a filter cup body, a foaming structure connected to the filter cup body, a supporting structure arranged on the filter cup body, an adjusting structure arranged on the supporting structure and a fixing structure installed on the supporting structure. According to the scheme, the filter cup body is in threaded butt joint with the bubbler, the rubber pad is in sealing fit, and the structural design of the inclined downward air hole, the conical mixing cavity and the water outlet channel is matched, so that air is conveniently introduced and efficiently mixed with coffee liquid in the coffee brewing process, bubbles are refined based on the Bernoulli effect, soft foam is formed, meanwhile, the overall structure is simplified, and the cost is reduced. According to the filter cup, the processing cost is reduced, the drinking taste of coffee is improved, self-adaptive clamping and fixing of the cup opening are achieved through cooperation of the supporting ring, the clamping block and the tension spring, the phenomenon that the filter cup deviates or turns over due to water flow pressure during brewing is avoided, meanwhile, the filter cup can adapt to containers with different calibers, and the adaptability of use scenes is improved.

Description

Technical Field

[0001] This invention relates to the field of coffee filter technology, specifically a coffee filter with a foaming function. Background Technology

[0002] Coffee filter cups are commonly used in pour-over coffee making to hold coffee powder and filter coffee liquid. Through the flow guiding structure, the extracted coffee liquid is stably discharged. With the help of filter paper, solid-liquid separation is achieved. It is easy to operate and can fully preserve the original flavor of coffee. During the liquid discharge process, the coffee liquid mixes with air to form fine foam, which can effectively enrich the coffee's flavor and enhance the overall drinking experience. It is widely applicable to home and commercial coffee brewing scenarios. However, most existing coffee filters do not have a dedicated foaming structure. The coffee liquid can only passively come into contact with air during its natural fall, making it difficult to achieve effective mixing. Consequently, it is not easy to form a fine, stable, and long-lasting foam, making it difficult to improve the drinking experience. Meanwhile, because the overall structure of the filter cup is fixed, it is usually placed directly on the mouth of the cup, making it difficult to flexibly adjust the distance between the bottom of the filter cup and the bottom of the cup according to the depth and size of different cups. It has poor adaptability to different container sizes and its use is easily limited. Meanwhile, since filter cups usually rely simply on the edge of the cup body and are supported on the mouth of the cup, they are very prone to shifting, shaking, or even tipping over and spilling coffee when subjected to water flow or slight external force during the brewing process. Their stability, safety and reliability cannot meet the actual use requirements. Summary of the Invention

[0003] The purpose of this invention is to provide a coffee filter cup with a foaming function to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: A coffee filter cup with a foaming function includes a filter cup body, a foaming structure connected to the filter cup body, a support structure disposed on the filter cup body, an adjustment structure disposed on the support structure, and a fixing structure installed on the support structure. The foaming structure includes a foamer, which is threadedly connected to the bottom of the filter cup body. The top of the foamer has a feeding chamber that communicates with the inner cavity of the filter cup body. A mixing chamber is located at the center of the foamer and communicates with the top of the mixing chamber. Two downward-sloping air holes are located on the side wall of the foamer and communicate with the mixing chamber. A conical water outlet channel is located at the bottom of the foamer and communicates with the top of the water outlet channel. A support structure is located on the outer side of the foamer.

[0005] In order to optimize the flow state of the gas-liquid mixed flow and further refine the bubbles, as a preferred embodiment of the present invention: the bottom of the mixing chamber gradually contracts downward along the axial direction, the water outlet channel is a tapered channel with a narrow upper part and a wide lower part, and the contraction end at the bottom of the mixing chamber is connected to the small end at the top of the water outlet channel.

[0006] In order to prevent the coffee liquid from leaking from the docking part between the filter cup body and the frother, as a preferred embodiment of the present invention: a rubber pad is clamped at a position near the bottom of the filter cup body inside the frother, and the bottom surface of the filter cup body abuts against the rubber pad.

[0007] In order to improve the portability and heat insulation of the filter cup, and at the same time ensure the efficient collection of coffee liquid, as a preferred embodiment of the present invention: the filter cup body is in a funnel shape, and both the filter cup body and the frother are made of plastic.

[0008] In order to stably place the filter cup on the cup mouth and adapt to different containers, as a preferred embodiment of the present invention: the support structure includes a support ring, a support ring is provided on the outer side of the frother, a first bracket is fixedly connected to the support ring, a second bracket is connected to the first bracket, a support ring is fixedly connected to the second bracket, and the filter cup body is clamped inside the support ring.

[0009] In order to achieve flexible adjustment of the height of the filter cup and improve the adaptability of the cup mouth fixation, as a preferred embodiment of the present invention: an adjustment structure is provided between the first bracket and the second bracket, and a fixing structure is installed on the support ring.

[0010] In order to achieve stepless adjustment of the distance between the frother and the cup bottom and ensure reliable positioning after adjustment, as a preferred embodiment of the present invention: the adjustment structure includes a guide post, a guide post is fixedly connected to the back side of the second bracket, a sliding frame is slidably connected to the guide post, the sliding frame is slidably connected to the second bracket, a spring is fixedly connected between the sliding frame and the back side of the second bracket, a connecting bar is fixedly connected to the top of the first bracket, the connecting bar is slidably connected to both the sliding frame and the second bracket, a plurality of jacks are equidistantly arranged on the connecting bar, a clamping block is fixedly connected to the bottom of the second bracket, and the clamping block is mutually clamped with the adjacent jacks.

[0011] In order to improve the smoothness of the height adjustment process and prevent the components from slipping off, as a preferred embodiment of the present invention: the cross-section of the guide post is in a "T" - shaped structure, and the sliding frame is in a "square" - shaped structure.

[0012] To accommodate cups of different diameters and achieve stable clamping and fixing, as a preferred embodiment of the present invention: the fixing structure includes a slide bar, slide bars are fixedly connected to both sides of the support ring, a clamping block is slidably connected to the slide bar, the clamping block is slidably connected to the inner wall of the support ring, and a tension spring is fixedly connected between the outer side of the clamping block and the inner wall of the support ring.

[0013] To improve the guidance and alignment accuracy of the cup installation and enhance the stability of the fixation, as a preferred embodiment of the present invention: the bottom of the clamping block is provided with an outward inclined surface, and a positioning ring is fixedly connected to the center position of the support ring.

[0014] Compared with the prior art, the beneficial effects of the present invention are: 1) Through the threaded connection between the filter cup body and the maker and the sealing fit of the rubber gasket, combined with the structural design of the downward-sloping air hole, the conical mixing chamber and the water outlet channel, it is easy to introduce air and mix it efficiently with the coffee liquid during the coffee brewing process. Based on the Bernoulli effect, the bubbles are refined to form a dense foam. At the same time, the overall structure is simplified, the processing cost is reduced and the coffee drinking taste is improved.

[0015] 2) The cup opening is self-adaptive clamping and fixing is achieved through the cooperation of support ring, clamping block and tension spring. The inclined surface at the bottom of the clamping block can automatically guide and fit the inner wall of the cup opening, avoiding the filter cup from shifting or tipping over due to water pressure during brewing. At the same time, it can adapt to containers of different diameters, improving the adaptability of the usage scenario.

[0016] 3) The height adjustment structure of the slide, guide column and locking block can flexibly adjust the distance between the aerator and the bottom of the cup to adapt to containers of different depths. After adjustment, the spring resets the position reliably. Combined with the locking design of the support ring and the filter cup body, the overall structural stability is further enhanced, ensuring a smooth and reliable brewing process. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 for Figure 1 The diagram shown is an enlarged view of the structure of part A. Figure 3 This is a schematic diagram of the connection structure between the filter cup body and the aerator of the present invention; Figure 4 for Figure 3 The diagram shown is an enlarged view of the structure of section B. Figure 5 This is a schematic diagram of the structure of the filter cup body of the present invention; Figure 6 for Figure 5 The diagram shows an enlarged view of section C. Figure 7This is a schematic diagram of the connection structure between the support ring and the first bracket of the present invention; Figure 8 This is a schematic diagram of the connection structure between the support ring and the positioning ring of the present invention; Figure 9 for Figure 8 The diagram shows an enlarged view of the structure of part D.

[0018] In the diagram: 1. Filter cup body; 2. Foaming structure; 201. Foamer; 202. Rubber pad; 203. Feeding chamber; 204. Water outlet channel; 205. Air hole; 206. Mixing chamber; 3. Support structure; 301. Support ring; 302. First bracket; 303. Second bracket; 304. Support ring; 4. Adjustment structure; 401. Guide column; 402. Slide; 403. Spring; 404. Locking block; 405. Connecting strip; 406. Insertion hole; 5. Fixing structure; 501. Slide bar; 502. Clamping block; 503. Tension spring; 504. Positioning ring. Detailed Implementation

[0019] 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.

[0020] Please see Figure 1-9 The present invention provides a technical solution: a coffee filter cup with a foaming function, comprising a filter cup body 1, a foaming structure 2 connected to the filter cup body 1, a support structure 3 disposed on the filter cup body 1, an adjustment structure 4 disposed on the support structure 3, and a fixing structure 5 installed on the support structure 3. The foaming structure 2 includes a bubbler 201. The bottom of the filter cup body 1 is threadedly connected to the bubbler 201. The top of the bubbler 201 has a feeding chamber 203, which is connected to the inner cavity of the filter cup body 1. The center of the bubbler 201 has a mixing chamber 206, which is connected to the top of the feeding chamber 203. The side wall of the bubbler 201 has two downward-sloping air holes 205, which are connected to the mixing chamber 206. The bottom of the bubbler 201 has a conical water outlet channel 204, which is connected to the top of the mixing chamber 206. The outside of the bubbler 201 has a support structure 3.

[0021] In practical use, coffee filter paper is placed inside the filter cup body 1, coffee powder is poured onto the filter paper, and hot water is poured in for brewing. After brewing, the coffee liquid is filtered through the filter paper and flows down, collecting in the feeding chamber 203 along the funnel-shaped plastic filter cup body 1, and then enters the mixing chamber 206 in the center of the maker 201. When the coffee liquid flows downward in the mixing chamber 206, it generates negative pressure. Two downward-sloping air holes 205 on the side wall of the maker 201 introduce external air into the mixing chamber 206. The design of the sloping air holes 205 allows the air to directly cut through... The coffee liquid flow is introduced to improve the gas-liquid mixing efficiency and prevent bubbles from escaping too early. The bottom of the mixing chamber 206 gradually narrows downward along the axis, and is connected to the top small end of the water outlet channel 204, which is narrow at the top and wide at the bottom. The gas-liquid mixed flow accelerates in the narrow section, and the bubbles are further refined based on the Bernoulli effect. After entering the conical water outlet channel 204, the flow gradually expands and forms a uniform and dense coffee foam when it flows out from the lower end of the water outlet channel 204, which effectively improves the taste of coffee.

[0022] The bottom of the mixing chamber 206 gradually narrows downward along the axial direction, and the water outlet channel 204 is a tapered flow channel that is narrow at the top and wide at the bottom. The bottom narrowing end of the mixing chamber 206 is connected to the top small end of the water outlet channel 204.

[0023] In practical use, the bottom of the mixing chamber 206 gradually contracts downward along the axis, and is connected to the top small end of the water outlet channel 204, which is narrow at the top and wide at the bottom. The gas-liquid mixture flows faster in the contraction section.

[0024] A rubber pad 202 is engaged inside the aerator 201 near the bottom of the filter cup body 1, and the bottom surface of the filter cup body 1 abuts against the rubber pad 202.

[0025] In actual use, the filter cup body 1 and the maker 201 are screwed together and connected. The rubber gasket 202 in the middle is tightly pressed against the bottom surface of the filter cup body 1 to form a reliable seal, effectively preventing coffee liquid from leaking from the connection.

[0026] The filter cup body 1 is funnel-shaped, and both the filter cup body 1 and the aerator 201 are made of plastic.

[0027] In practical use, the plastic filter cup body 1 and the aerator 201 are lightweight, have good heat insulation, are easy to hold and operate, and are not easy to burn your hands.

[0028] The support structure 3 includes a support ring 301. The support ring 301 is provided on the outer side of the aerator 201. A first bracket 302 is fixedly connected to the support ring 301. A second bracket 303 is connected to the first bracket 302. A support ring 304 is fixedly connected to the second bracket 303. The filter cup body 1 is engaged on the inner side of the support ring 304.

[0029] During specific use, the support ring 301, the first bracket 302, the second bracket 303 and the support ring 304 jointly support the filter cup body 1 on the cup mouth, providing stable support for the filter cup and preventing overall shaking during the brewing process.

[0030] An adjusting structure 4 is provided between the first bracket 302 and the second bracket 303, and a fixing structure 5 is installed on the support ring 301. The adjusting structure 4 includes a guiding column 401, the guiding column 401 is fixedly connected to the back side of the second bracket 303, a sliding frame 402 is slidably connected to the guiding column 401, the sliding frame 402 is slidably connected to the second bracket 303, a spring 403 is fixedly connected between the sliding frame 402 and the back side of the second bracket 303, the top of the first bracket 302 is fixedly connected with a connecting bar 405, the connecting bar 405 is slidably connected to both the sliding frame 402 and the second bracket 303, a plurality of jacks 406 are equidistantly arranged on the connecting bar 405, and the bottom of the second bracket 303 is fixedly connected with a clamping block 404, and the clamping block 404 is engaged with the adjacent jack 406.

[0031] During specific use, when the first bracket 302 is toggled backward to make the first bracket 302 and the second bracket 303 no longer contact each other, at this time, the connecting bar 405 at the top of the first bracket 302 drives the "mouth"-shaped sliding frame 402 to slide along the "T"-shaped guiding column 401 in cross-section, so that the clamping block 404 at the bottom of the second bracket 303 disengages from the jack 406 on the connecting bar 405, unlocking the second bracket 303. Subsequently, the second bracket 303 is moved up and down to adjust the distance between the bubbler 201 and the cup bottom. After adjusting to the target height, the first bracket 302 is released, and the spring 403 between the sliding frame 402 and the back side of the second bracket 303 pushes the sliding frame 402 to reset, and at the same time makes the clamping block 404 re-engage into the corresponding jack 406 on the connecting bar 405, thus completing the positioning.

[0032] The cross-section of the guiding column 401 is of a "T"-shaped structure, and the sliding frame 402 is of a "mouth"-shaped structure.

[0033] During specific use, the "T"-shaped guiding column 401 can prevent the sliding frame 402 from slipping off, and the "mouth"-shaped sliding frame 402 ensures a smooth and stable sliding process, achieving stepless height adjustment and improving the adaptability to cups of different depths. The fixing structure 5 includes a sliding strip 501, the sliding strip 501 is fixedly connected to both sides of the support ring 301, a clamping block 502 is slidably connected to the sliding strip 501, the clamping block 502 is slidably connected to the inner wall of the support ring 301, and a tension spring 503 is fixedly connected between the outer side of the clamping block 502 and the inner wall of the support ring 301.

[0034] In actual use, when the filter cup body 1 is mounted on the cup mouth by the support ring 301, the cup mouth will first contact the clamping blocks 502 on the two side slides 501. At this time, the clamping blocks 502 automatically fit the inner wall of the cup mouth under the guidance of the inclined surface at the bottom facing outward. The tension spring 503 between the clamping blocks 502 and the inner wall of the support ring 301 provides elastic tension, so that the clamping blocks 502 are fixed to the cup mouth. It can be adapted to cups of different diameters, and at the same time, it can prevent the filter cup body 1 from shifting or tipping over due to water pressure during brewing. The positioning ring 504 in the center of the support ring 301 can help align the container opening and ensure that the coffee liquid falls accurately.

[0035] The bottom of the clamping block 502 has an outward inclined surface, and a positioning ring 504 is fixedly connected to the center of the support ring 301.

[0036] In actual use, the support ring 304 fixedly connected to the second bracket 303 engages with the filter cup body 1, and together with the support of the first bracket 302 and the second bracket 303, further enhances the overall structural stability and ensures a stable and reliable coffee brewing process.

[0037] Working principle: First, coffee filter paper is placed inside the filter cup body 1. Coffee powder is poured onto the filter paper, and hot water is poured in for brewing. After brewing, the coffee liquid is filtered through the filter paper and flows down, collecting in the feeding chamber 203 along the funnel-shaped plastic filter cup body 1. Then, it enters the mixing chamber 206 in the center of the maker 201. When the coffee liquid flows downward in the mixing chamber 206, it generates negative pressure. Two downward-sloping air holes 205 on the side wall of the maker 201 introduce external air into the mixing chamber 206. The design of the downward-sloping air holes 205 allows air to directly enter the mixing chamber 206. By cutting into the coffee liquid flow, the gas-liquid mixing efficiency is improved, and the bubbles are prevented from escaping too early. The bottom of the mixing chamber 206 gradually narrows downward along the axis. It is connected to the top small end of the water outlet channel 204, which is narrow at the top and wide at the bottom. The gas-liquid mixed flow accelerates in the narrow section and further refines the bubbles based on the Bernoulli effect. After entering the conical water outlet channel 204, the flow gradually expands. When it flows out from the lower end of the water outlet channel 204, it forms a uniform and dense coffee foam, which effectively improves the taste of coffee. The plastic filter cup body 1 and the maker 201 are lightweight and have good heat insulation, making them easy to hold and operate without burning your hands. The two are screwed together, and the rubber gasket 202 in the middle is tightly pressed against the bottom surface of the filter cup body 1 to form a reliable seal, effectively preventing coffee liquid from leaking from the connection. The support ring 301, the first bracket 302, the second bracket 303 and the support ring 304 together support the filter cup body 1 at the mouth of the cup, providing stable support for the filter cup and preventing the whole cup from shaking during the brewing process. When it is necessary to adapt to cups of different depths, push the first bracket 302 backward so that it is no longer in contact with the second bracket 303. At this time, the connecting strip 405 at the top of the first bracket 302 drives the U-shaped slide 402 to slide along the T-shaped guide post 401, causing the locking block 404 at the bottom of the second bracket 303 to disengage from the insertion hole 406 on the connecting strip 405, thus releasing the lock on the second bracket 303. Then, move the second bracket 303 up and down to adjust the foaming. After adjusting the distance between the container 201 and the bottom of the cup to the target height, the first bracket 302 is released. The spring 403 between the back of the slide 402 and the second bracket 303 pushes the slide 402 to reset, and at the same time, the locking block 404 is re-engaged into the corresponding insertion hole 406 on the connecting strip 405, thereby completing the positioning. The "T"-shaped guide post 401 can prevent the slide 402 from slipping off, and the "U"-shaped slide 402 ensures a smooth and stable sliding process, realizing stepless height adjustment and improving the adaptability to cups of different depths. When the filter cup body 1 is mounted on the cup opening via the support ring 301, the cup opening first contacts the clamping blocks 502 on the two side slides 501. At this time, the clamping blocks 502 automatically fit against the inner wall of the cup opening under the guidance of the inclined surface at the bottom facing outward. The tension spring 503 between the clamping blocks 502 and the inner wall of the support ring 301 provides elastic tension, so that the clamping blocks 502 are fixed against and fixed to the cup opening. This can accommodate cups of different diameters and prevent the filter cup body 1 from shifting or tipping over due to water pressure during brewing. The positioning ring 504 in the center of the support ring 301 can help align the container opening and ensure that the coffee liquid falls accurately. The support ring 304 fixedly connected to the second bracket 303 engages with the filter cup body 1. Together with the support of the first bracket 302 and the second bracket 303, it further enhances the overall structural stability and ensures a stable and reliable coffee brewing process.

[0038] The contents not described in detail in this description are existing technologies known to those skilled in the art. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A coffee filter cup with a foaming function, comprising a filter cup body (1), characterized in that, A foaming structure (2) connected to the filter cup body (1), a support structure (3) provided on the filter cup body (1), an adjustment structure (4) provided on the support structure (3), and a fixing structure (5) installed on the support structure (3). The foaming structure (2) includes a foamer (201). The bottom of the filter cup body (1) is threaded with a foamer (201). The top of the foamer (201) is provided with a feeding chamber (203). The feeding chamber (203) is connected to the inner cavity of the filter cup body (1). The center of the foamer (201) is provided with a mixing chamber (206). The top of the mixing chamber (206) is connected to the feeding chamber (203). Two downward-sloping air holes (205) are provided on the side wall of the foamer (201). The air holes (205) are connected to the mixing chamber (206). The bottom of the foamer (201) is provided with a conical water outlet channel (204). The top of the water outlet channel (204) is connected to the mixing chamber (206). The outer side of the foamer (201) is provided with a support structure (3).

2. A coffee filter cup with a foaming function according to claim 1, characterized in that: The bottom of the mixing chamber (206) gradually narrows downward along the axial direction, and the water outlet channel (204) is a tapered flow channel that is narrow at the top and wide at the bottom. The bottom narrowing end of the mixing chamber (206) is connected to the top small end of the water outlet channel (204).

3. A coffee filter cup with a foaming function according to claim 1, characterized in that: A rubber pad (202) is engaged inside the aerator (201) near the bottom of the filter cup body (1), and the bottom surface of the filter cup body (1) abuts against the rubber pad (202).

4. A coffee filter cup with a foaming function according to claim 3, characterized in that: The filter cup body (1) is funnel-shaped, and both the filter cup body (1) and the aerator (201) are made of plastic.

5. A coffee filter cup with a foaming function according to claim 1, characterized in that: The support structure (3) includes a support ring (301). The support ring (301) is provided on the outer side of the aerator (201). A first bracket (302) is fixedly connected to the support ring (301). A second bracket (303) is connected to the first bracket (302). A support ring (304) is fixedly connected to the second bracket (303). The filter cup body (1) is engaged on the inner side of the support ring (304).

6. A coffee filter cup with a foaming function according to claim 5, characterized in that: An adjustment structure (4) is provided between the first bracket (302) and the second bracket (303), and a fixing structure (5) is installed on the support ring (301).

7. A coffee filter cup with a foaming function according to claim 6, characterized in that: The adjustment structure (4) includes a guide post (401). The guide post (401) is fixedly connected to the back side of the second bracket (303). A carriage (402) is slidably connected to the guide post (401). The carriage (402) is slidably connected to the second bracket (303). A spring (403) is fixedly connected between the carriage (402) and the back side of the second bracket (303). A connecting bar (405) is fixedly connected to the top of the first bracket (302). The connecting bar (405) is slidably connected to both the carriage (402) and the second bracket (303). A plurality of jacks (406) are equidistantly arranged on the connecting bar (405). A latch (404) is fixedly connected to the bottom of the second bracket (303). The latch (404) is engaged with the adjacent jack (406).

8. A coffee filter cup with a foaming function according to claim 7, characterized in that: The cross-section of the guide post (401) is in a "T" - shaped structure, and the carriage (402) is in a "square" - shaped structure.

9. A coffee filter cup with a foaming function according to claim 6, characterized in that: The fixing structure (5) includes a slide bar (501). Slide bars (501) are fixedly connected to both sides of the support ring (301). A clamping block (502) is slidably connected to the slide bar (501). The clamping block (502) is slidably connected to the inner wall of the support ring (301). A tension spring (503) is fixedly connected between the outer - facing side of the clamping block (502) and the inner wall of the support ring (301).

10. A coffee filter cup with a foaming function according to claim 9, characterized in that: The bottom of the clamping block (502) is provided with an inclined surface that slopes outward. A positioning ring (504) is fixedly connected to the central position of the support ring (301).

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