Tea capsules

Abstract

The present invention provides a tea capsule, which includes a cup body, a water outlet and an upper cover, wherein a water outlet is provided at the bottom end of the cup body, and original leaf tea is placed in the cup body; the water outlet includes a silicone seat and a plugging ball, the silicone seat is connected to the water outlet, and an adjustment channel is provided on the upper end surface of the silicone seat, wherein the adjustment channel includes an inlet section, a first accommodating section, a limiting section and a second accommodating section, wherein the inner diameter of the inlet section and the inner diameter of the limiting section are smaller than the outer diameter of the plugging ball, the inner diameter of the first accommodating section and the inner diameter of the second accommodating section are larger than the outer diameter of the plugging ball, the plugging ball is accommodated in the first accommodating section and can pass through the limiting section and be accommodated in the second accommodating section, and a plurality of drainage holes are provided on the lower end surface of the silicone seat; the upper cover is connected to the top end of the cup body, and an injection hole is provided on the upper surface of the upper cover, and the upper end of the injection hole is covered with a sealing film, and a spray device connected to the injection hole is connected to the lower surface of the upper cover. The tea capsule of the present invention meets the different requirements of original leaf tea of ​​different categories for pressure and brewing time.

Description

Technical Field

[0001] The invention relates to the technical field of tea brewing equipment, in particular to a tea capsule. Background Art

[0002] In order to simplify the brewing process of traditional Chinese tea, the automatic brewing system of tea capsules came into being. At present, there are many types of capsules used for original leaf tea, but most of them are copies of coffee capsules or slightly changed on the basis of coffee capsules.

[0003] As we all know, capsules were first created for coffee. There are great differences between tea and coffee in both form and extraction process. Applying coffee capsules directly to tea is not the best match.

[0004] One of the disadvantages of using capsules on the market for tea is that quick brewing only passes the tea leaves through water, but does not soak the tea leaves. Only full soaking can make the tea leaves expand and the effective substances in the tea soup can be extracted. The second disadvantage is that the coffee powder is densely packed in the capsule, so it can form brewing pressure during quick brewing and can quickly extract the effective substances, while the original leaf tea is loose and cannot form dense packing. Therefore, no brewing pressure can be formed during quick brewing. It only passes through water once and cannot quickly extract the effective substances.

[0005] Some capsules can be brewed under pressure through structural design, such as the DG system (Double-Coo capsule system), but the pressure of such capsules is fixed and cannot be adjusted. Different types of tea have different requirements for brewing pressure, and a good cup of tea can be brewed in the range of 3 bar to 15 bar. Summary of the invention

[0006] The object of the present invention is to provide a tea capsule that can simultaneously meet the differentiated parameter brewing of different tea categories.

[0007] To achieve the above object, the present invention provides a tea capsule comprising:

[0008] The cup body is a hollow structure with an open top, a water outlet is provided at the bottom of the cup body, and the cup body contains raw leaf tea;

[0009] A water outlet nozzle, comprising a silicone seat and a plugging ball, wherein the silicone seat is connected to the water outlet hole, an upper end surface of the silicone seat is provided with an adjustment channel, and the adjustment channel comprises an inlet section, a first accommodating section, a limiting section and a second accommodating section arranged in sequence from top to bottom, the inner diameter of the inlet section and the inner diameter of the limiting section are smaller than the outer diameter of the plugging ball, the inner diameter of the first accommodating section and the inner diameter of the second accommodating section are larger than the outer diameter of the plugging ball, the plugging ball is accommodated in the first accommodating section and can pass through the limiting section and be accommodated in the second accommodating section, and a plurality of drainage holes connected to the second accommodating section are provided on the lower end surface of the silicone seat;

[0010] The upper cover is connected to the top of the cup body, the upper surface of the upper cover is provided with a water injection hole, the upper end of the water injection hole is covered with a sealing film, and the lower surface of the upper cover is connected with a spray device connected to the water injection hole.

[0011] The tea capsule as described above, wherein the second accommodating section is in a cone shape that is smaller at the top and larger at the bottom.

[0012] The tea capsule as described above, wherein a total flow area of ​​the plurality of drainage holes is smaller than a flow area of ​​the inlet section.

[0013] In the tea capsule as described above, a filtering groove is provided on the inner surface of the bottom end of the cup body, the water outlet is arranged at the bottom of the filtering groove, and a water outlet filtering membrane is connected in the filtering groove.

[0014] The tea capsule as described above, wherein a drainage column is protrudingly provided on the bottom surface of the cup body, and the water outlet hole passes through the drainage column.

[0015] As described above, the tea capsule, wherein a guide column is convexly provided on the bottom surface of the upper cover, the water injection hole extends to the lower part of the guide column, the spray device comprises at least two spray pipes arranged at intervals along the circumference of the guide column, the first end of the spray pipe is connected to the water injection hole, the second end of the spray pipe is closed, and a plurality of spray holes arranged at intervals are provided on the bottom wall of the spray pipe.

[0016] The tea capsule as described above, wherein the spraying device comprises four spraying pipes arranged at equal intervals along the circumference of the guide column.

[0017] The tea capsule as described above, wherein the water injection hole is a countersunk hole, a water inlet nozzle is connected to the water injection hole, the water inlet nozzle is provided with a through hole, the through hole is a stepped hole with a larger top and a smaller bottom, and a water inlet filter membrane is connected to the step of the through hole.

[0018] In the tea capsule as described above, a central groove is provided on the upper surface of the upper cover, the water injection hole is arranged on the bottom surface of the central groove, and the sealing film covers the bottom surface of the central groove.

[0019] The tea capsule as described above, wherein the upper cover and the cup body are connected by ultrasonic welding.

[0020] Compared with the prior art, the advantages of the present invention are as follows:

[0021] The tea capsule of the present invention can adjust the sealing pressure by adjusting the hardness of the silica gel seat, thereby achieving the purpose of adjusting the brewing pressure and the soaking time, thereby solving the different requirements of different types of original leaf tea for pressure and brewing time, and realizing the purpose of quickly brewing a cup of high-quality tea soup by using the capsule automatic brewing system;

[0022] The tea capsule of the present invention realizes the sealing of the entire tea capsule through the close contact between the blocking ball and the limiting section, so that the tea capsule can accumulate water pressure, generate brewing pressure, and achieve the purpose of maintaining immersion. When the set pressure is reached, the blocking ball passes through the limiting section under the action of the water pressure and falls into the second accommodating section, so that the seal is released, the capsule is depressurized, the tea leaves are no longer immersed, and the brewed tea soup is discharged from the drainage hole;

[0023] The tea capsule of the present invention makes the total flow area of ​​the plurality of drainage holes smaller than the flow area of ​​the inlet section, so that the amount of water entering the body is greater than the amount of water discharged from the cup body, so that during the brewing process of the second and subsequent brews, a certain brewing pressure is still present in the cup body and maintained at a certain value, thereby achieving pressurized brewing of the second and subsequent brews, and the brewing pressure of the second and subsequent brews is lower than the brewing pressure of the first brew;

[0024] The tea capsule of the present invention effectively improves the quality of brewed tea by arranging a water inlet filter membrane and a water outlet filter membrane. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The following drawings are intended only to illustrate and explain the present invention, and do not limit the scope of the present invention.

[0026] Figure 1 is a schematic diagram of the three-dimensional structure of the tea capsule of the present invention;

[0027] Figure 2 yes Figure 1 The schematic diagram of the main structure of the tea capsule shown;

[0028] Figure 3 yes Figure 1 The schematic diagram of the structure of the tea capsule shown is viewed from above;

[0029] Figure 4 yes Figure 1 A schematic diagram of the top view of the tea capsule shown;

[0030] Figure 5 yes Figure 1The schematic diagram of the cross-sectional structure of the tea capsule shown;

[0031] Figure 6 yes Figure 5 A schematic diagram of the enlarged structure of the middle part A;

[0032] Figure 7 yes Figure 5 The enlarged structural diagram of the middle B part;

[0033] Figure 8 It is a graph showing the brewing pressure of tea capsules changing with time.

[0034] Description of Figure Numbers:

[0035] 100, cup body;

[0036] 110. Water outlet;

[0037] 120, filter groove;

[0038] 130. Water filtration membrane;

[0039] 140. Drainage column;

[0040] 200, water outlet;

[0041] 210, silicone seat; 211, adjustment channel; 2111, entrance section; 2112, first accommodating section; 2113, limiting section; 2114, second accommodating section; 212, drainage hole;

[0042] 220, blocking the ball;

[0043] 300, upper cover;

[0044] 310, water injection hole;

[0045] 320, sealing film;

[0046] 330, spray device; 331, spray pipe; 332, spray hole;

[0047] 340, guide column;

[0048] 350, water inlet nozzle; 351, through hole; 352, water inlet filter membrane;

[0049] 360. Center groove. DETAILED DESCRIPTION

[0050] In order to have a clearer understanding of the technical solution, purpose and effect of the present invention, the specific implementation mode of the present invention is now described in conjunction with the accompanying drawings. Among them, the use of adjective or adverbial modifiers "upper" and "lower", "top" and "bottom", "inside" and "outside" is only to facilitate relative reference between multiple groups of terms, and does not describe any specific directional restrictions on the modified terms. In the description of the present invention, unless otherwise specified, the meaning of "multiple" is two or more.

[0051] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the present invention provides a tea capsule, which includes a cup body 100, a water outlet 200 and an upper cover 300, wherein:

[0052] The cup body 100 is a place for brewing original leaf tea. The cup body 100 is made of plastic material. The cup body 100 is a cylindrical hollow structure with an open top. A water outlet 110 is provided at the bottom of the cup body 100. The water outlet 110 is arranged at the center of the bottom of the cup body 100. The cup body 100 contains original leaf tea.

[0053] The water outlet 200 includes a silicone seat 210 and a plugging ball 220. The silicone seat 210 is connected to the water outlet 110. Specifically, the silicone seat 210 is connected to the water outlet 110 through a two-color injection molding process to form an integrated structure. The upper end surface of the silicone seat 210 is provided with an adjustment channel 211. The adjustment channel 211 extends vertically downward to the lower part of the silicone seat 210 but does not penetrate the bottom surface of the silicone seat 210, that is, the adjustment channel 211 is a structure with an open upper end and a closed lower end. The distance between the lower end of the adjustment channel 211 and the bottom surface of the silicone seat 210 is 0.5mm to 1mm. The adjustment channel 211 includes an inlet section 2111, a first accommodating section 2112, a limiting section 2113 and a second accommodating section 2114 arranged in sequence from top to bottom. The inlet section 211 The inner diameter of the inlet section 2111 and the inner diameter of the limiting section 2113 are smaller than the outer diameter of the blocking ball 220, the inner diameter of the first accommodating section 2112 and the inner diameter of the second accommodating section 2114 are larger than the outer diameter of the blocking ball 220. Specifically, the inner diameter of the inlet section 2111 is smaller than the outer diameter of the blocking ball 220, which can prevent the blocking ball 220 from rolling out of the adjusting channel 211 due to the shaking of the tea capsule. The blocking ball 220 is forcibly passed through the inlet section 2111 and installed in the first accommodating section 2112 through the deformation of the silicone. The inner diameter of the first accommodating section 2112 is 1mm to 2mm larger than the outer diameter of the blocking ball 220, so that the blocking ball 220 can move smoothly to the limiting section 2113 in the first accommodating section 2112 without a large left and right shaking. The inner diameter of the limiting section 2113 is larger than the outer diameter of the blocking ball 220. The outer diameter is 1mm to 1.5mm smaller, so that the blocking ball 220 can be in close contact with the limiting section 2113 without falling, thereby playing a sealing role, and in the early stage of brewing, when a certain pressure is not reached in the cup body 100, there will be no water leakage; the diameter of the blocking ball 220 is 3mm to 3.5mm, and a solid structure made of stainless steel, silicone or glass is adopted. The blocking ball 220 is accommodated in the first accommodating section 2112 and can pass through the limiting section 2113 to be accommodated in the second accommodating section 2114, that is, when the water pressure accumulated during brewing reaches a preset value, the blocking ball 220 in close contact with the limiting section 2113 is affected by the water pressure and passes through the limiting section 2113 and falls into the second accommodating section 2114. At this time, the sealing effect is released, and the lower end surface of the silicone seat 210 is provided with A plurality of drainage holes 212 are connected to the second accommodating section 2114. Since the inner diameter of the second accommodating section 2114 is larger than the outer diameter of the blocking ball 220, the brewed tea soup passes through the inlet section 2111, the first accommodating section 2112, the limiting section 2113 and the second accommodating section 2114 in sequence and is discharged through the drainage holes 212. In actual use, the sealing pressure can be adjusted by adjusting the hardness of the silicone seat 210, so as to achieve the purpose of adjusting the brewing pressure and the soaking time. Specifically, when the Shore hardness of the silicone seat 210 is 30 degrees, a sealing pressure of 3 bar can be achieved; when the Shore hardness of the silicone is 50 degrees, a sealing pressure of 8 bar can be achieved; when the Shore hardness of the silicone is 70 degrees, a sealing pressure of 12 bar can be achieved.

[0054] The upper cover 300 is connected to the top of the cup body 100. Specifically, the upper cover 300 is a circular plate-shaped structure. The outer diameter of the upper cover 300 is 30 mm to 70 mm. The outer diameter of the upper cover 300 is slightly larger than the outer diameter of the cup body 100 by 2 mm to 3 mm, so as to facilitate connection with the cup body 100. The edge of the upper cover 300 extends downward along the circumference to form a lower edge with a height of 0.5 mm to 1 mm. The lower edge can cover the connecting surface of the upper cover 300 and the cup body 100, so that the tea capsule is more beautiful as a whole. The thickness of the upper cover 300 is 1 mm to 3 mm. The upper surface of the upper cover 300 is provided with a water injection hole 310 for injection. The upper end of the water hole 310 is covered with a sealing film 320, which is the sealing film 320 of the entire tea capsule. The sealing film 320 is made of a plastic composite film or an aluminum foil composite film. The sealing film 320 is heat-sealed on the upper end surface of the water injection hole 310. The lower surface of the upper cover 300 is connected to a spray device 330 connected to the water injection hole 310. The spray device 330 can evenly spray water into the cup body 100. When brewing, a needle is used to pierce the sealing film 320, and water is injected from the water injection hole 310. The water flows evenly into the cup body 100 through the spray device 330 to brew the original leaf tea in the cup body 100.

[0055] The tea capsule of the present invention can adjust the sealing pressure by adjusting the hardness of the silicone seat 210, so as to achieve the purpose of adjusting the brewing pressure and the soaking time, thereby solving the different requirements of different types of original leaf tea for pressure and brewing time, and realizing the purpose of quickly brewing a cup of high-quality tea soup by using the capsule automatic brewing system; through the close contact between the blocking ball 220 and the limiting section 2113, the sealing of the entire tea capsule is realized, so that the tea capsule can accumulate water pressure, generate brewing pressure, and achieve the purpose of maintaining soaking. When the set pressure is reached, the blocking ball 220 is affected by the water pressure and passes through the limiting section 2113 and falls into the second accommodating section 2114, so that the seal is released, the capsule is depressurized, the tea leaves are no longer kept soaked, and the brewed tea soup will be discharged from the drainage hole 212.

[0056] Further, if Figure 1 and Figure 2 As shown, the upper cover 300 and the cup body 100 are connected by ultrasonic welding, and the lower edge of the upper cover 300 can cover the welding seam, which ensures the reliability of the connection between the upper cover 300 and the cup body 100 while also ensuring the aesthetics of the tea capsule.

[0057] Further, if Figure 7 As shown, the second accommodating section 2114 is in a cone shape that is small at the top and large at the bottom. Such a structure facilitates the rapid discharge of tea soup.

[0058] Furthermore, considering that the original leaf tea needs to be extracted multiple times, and in order to ensure that the quality of each brew of tea is good and the concentration of each brew is uniform, the extraction pressure of the second and subsequent brews should be lower than the extraction pressure of the first brew. The reason is: compared with the first brew, the original tea leaves have been fully soaked in the second and subsequent brews, and excessive pressure will easily make the tea bitter. At the same time, for each brew, the entire brewing process must be under pressure to ensure that the taste of the tea does not decrease.

[0059] In order to achieve multiple pressurized brewing of tea capsules, in one embodiment of the present invention, the total flow area of ​​the plurality of drainage holes 212 is smaller than the flow area of ​​the inlet section 2111. Specifically, the diameter ratio of the inlet section 2111 to the lower end surface of the silica gel seat 210 is 0.4-0.6, that is, the flow area of ​​the inlet section 2111 is smaller than the area of ​​the lower end surface of the silica gel seat 210, the pore diameter of the drainage hole 212 is 0.4mm-1mm, 3-5 drainage holes 212 are arranged per square meter on the lower end surface of the silica gel seat 210, and, as Figure 3 As shown, a plurality of drainage holes 212 are evenly arranged along the circumference of the lower end surface of the silicone seat 210 so that the tea soup can be evenly discharged;

[0060] During the brewing process, Figure 8 As shown, during the first extraction, as the water pressure accumulates, when the water pressure accumulated during brewing reaches a preset value, the blocking ball 220 is affected by the water pressure and passes through the limiting section 2113 and falls into the second accommodating section 2114. At this time, the sealing effect is released, and the tea soup can be discharged through the drainage holes 212. During the discharge of the tea soup, the water inflow continues. At this time, since the total flow area of ​​the multiple drainage holes 212 is smaller than the flow area of ​​the inlet section 2111, and the blocking ball 220 also blocks some of the drainage holes 212, the tea flow rate is reduced. Although the sealing effect is released, since the amount of water entering is greater than the amount of water discharged, the cup body 100 still has a certain brewing pressure and is maintained at a certain value; when the brewing is completed and the water supply is stopped, as the tea soup is discharged, the internal pressure of the cup body 100 gradually decreases and falls back to the initial state, thus achieving full-time pressure in the entire brewing process, and at the same time achieving pressurized brewing of the second and subsequent brews, and the brewing pressure of the second and subsequent brews is lower than the brewing pressure of the first brew.

[0061] exist Figure 8 In the figure, area A is in a pressure accumulation state, area B is in a seal release state (i.e., the state where the blocking ball 220 falls into the second accommodating section 2114), area C is in a pressure maintaining state (i.e., the brewing pressure in the cup body 100 is maintained at a certain value), and area D is in a water supply stop state, wherein areas A, B and C are the brewing process of the tea capsule.

[0062] Furthermore, by adjusting the number and diameter of the drainage holes 212, the brewing pressure of the second and subsequent brews can be adjusted.

[0063] Further, if Figure 7 As shown, the inner surface of the bottom end of the cup body 100 is provided with a filter groove 120. Specifically, the filter groove 120 is arranged at the center of the inner surface of the bottom end of the body, and the filter groove 120 is circular. The water outlet hole 110 is arranged at the bottom of the filter groove 120. The upper end of the water outlet hole 110 is connected to the filter groove 120. The filter groove 120 is connected with a water outlet filter membrane 130. The water outlet filter membrane 130 is filter paper or non-woven fabric. The water outlet filter membrane 130 is heat-sealed on the bottom surface of the filter groove 120 and covers the upper end surface of the water outlet hole 110, so that the brewed tea soup is filtered through the water outlet filter membrane 130 and then discharged, so that the discharged tea soup has a better taste.

[0064] Further, if Figure 7 As shown, a drainage column 140 is convexly provided on the bottom surface of the cup body 100, and the water outlet 110 passes through the drainage column 140. The drainage column 140 can smoothly pour the tea soup into a container (such as a teacup) for holding the tea soup. The lower part of the silicone seat 210 extends into the drainage column 140 and is connected to the drainage column 140 through a two-color injection molding process to form an integrated structure. Specifically, the outer peripheral surface of the drainage column 140 is in a stepped shape with a larger upper part and a smaller lower part, so as to facilitate the positioning of the tea capsule during brewing.

[0065] Further, if Figure 5 and Figure 6 As shown, a guide column 340 is convexly provided on the bottom surface of the upper cover 300, and the water injection hole 310 extends to the lower part of the guide column 340. The spray device 330 includes at least two spray pipes 331 arranged at intervals along the circumference of the guide column 340. The first end of the spray pipe 331 is connected to the water injection hole 310, and the second end of the spray pipe 331 is closed. A plurality of spray holes 332 arranged at intervals are provided on the bottom wall of the spray pipe 331. Specifically, the spray hole 332 is a circular hole, and the plurality of spray holes 332 are arranged at equal intervals, and the diameter of the spray hole 332 is 0.1 mm to 1 mm, so that the water used for brewing the original leaf tea enters the spray pipe 331 through the water injection hole 310, and then is evenly sprayed into the cup body 100 through the plurality of spray holes 332 to brew the original leaf tea.

[0066] Furthermore, the spray device 330 includes four spray pipes 331 arranged at equal intervals along the circumference of the guide column 340, so that the brewing water can be sprayed into the cup body 100 more quickly and evenly.

[0067] Alternatively, the spray device 330 may also be a spiral water pipe coiled on the bottom surface of the upper cover 300, and a plurality of spray holes 332 may be provided on the bottom surface of the spiral water pipe.

[0068] Further, if Figure 6 As shown, the water injection hole 310 is a countersunk hole, and a water inlet nozzle 350 is connected to the water injection hole 310. The countersunk hole is convenient for matching and installing with the water inlet nozzle 350. The water inlet nozzle 350 is provided with a through hole 351, that is, the water inlet nozzle 350 is a hollow cylindrical structure, and the through hole 351 is a stepped hole with a larger top and a smaller bottom. The design of a larger top and a smaller bottom is conducive to the pressure accumulated by the incoming water, so as to rapidly press the water flow into the spray device 330. A water inlet filter membrane 352 is connected to the step of the through hole 351. The water inlet filter membrane 352 is a filter paper or a non-woven fabric. The water inlet filter membrane 352 is used to filter the brewing water entering the cup body 100 to improve the quality of the brewed tea.

[0069] Further, if Figure 6 As shown, a central groove 360 ​​is provided on the upper surface of the upper cover 300, a water injection hole 310 is arranged on the bottom surface of the central groove 360, and a sealing film 320 covers the bottom surface of the central groove 360. Specifically, the sealing film 320 is heat-sealed on the bottom surface of the central groove 360, and the structure of the central groove 360 ​​can position the sealing film 320, so that the heat sealing operation becomes simple and convenient.

[0070] The following is a detailed description of the use of the tea capsule of the present invention in conjunction with the accompanying drawings:

[0071] like Figures 1 to 8 As shown, the sealing film 320 is pierced with a needle, and the brewing water is filtered and accelerated through the water inlet nozzle 350 and then injected into the water injection hole 310. The brewing water flows evenly into each spray pipe 331 through the water injection hole 310, and is evenly sprayed into the cup body 100 through the spray holes 332 of each spray pipe 331 to brew the original leaf tea in the cup body 100. In the initial stage of brewing, when the pressure in the cup body 100 has not reached a certain level, the blocking ball 220 can be in close contact with the limiting segment 2113 without falling off. When the water pressure accumulated during brewing reaches a preset value, the blocking ball 220 in close contact with the limiting section 2113 is affected by the water pressure and passes through the limiting section 2113 and falls into the second accommodating section 2114. At this time, the sealing effect is released, and the brewed tea passes through the inlet section 2111, the first accommodating section 2112, the limiting section 2113 and the second accommodating section 2114 in sequence and is discharged through the drainage hole 212, thus completing the first brewing.

[0072] When multiple brewing is required, brewing water is continuously injected into the cup body 100. At this time, since the total flow area of ​​the multiple drainage holes 212 is smaller than the flow area of ​​the inlet section 2111, and the blocking ball 220 also blocks part of the drainage holes 212, the flow rate of tea is reduced. Although the sealing effect is released, the amount of water entering is greater than the amount of water discharged, so that the cup body 100 still has a certain brewing pressure and is maintained at a certain value, so that the second and subsequent brewing can be achieved.

[0073] When the brewing is completed and the water supply is stopped, as the tea soup is discharged, the internal pressure of the cup body 100 gradually decreases and returns to the initial state.

[0074] Among them, the pressure of the tea capsule is adjustable within the range of 3bar to 15bar, and the soaking time is the pressure accumulation time. According to different types of original leaf tea, the sealing pressure can be adjusted by adjusting the hardness of the silicone seat 210, so as to achieve the purpose of adjusting the brewing pressure and soaking time; by adjusting the number and aperture of the drainage holes, the purpose of adjusting the brewing pressure of the second and subsequent brews can be achieved, so that the pressure of the tea capsule can still be maintained at 1bar to 8bar after reaching the maximum bursting pressure of 3bar to 15bar.

[0075] In summary, the tea capsule of the present invention can adjust the sealing pressure by adjusting the hardness of the silica gel seat, thereby achieving the purpose of adjusting the brewing pressure and the soaking time, thereby solving the different requirements of different types of original leaf tea for pressure and brewing time, and achieving the purpose of quickly brewing a cup of high-quality tea soup by using the capsule automatic brewing system;

[0076] The tea capsule of the present invention realizes the sealing of the entire tea capsule through the close contact between the blocking ball and the limiting section, so that the tea capsule can accumulate water pressure, generate brewing pressure, and achieve the purpose of maintaining immersion. When the set pressure is reached, the blocking ball passes through the limiting section under the action of the water pressure and falls into the second accommodating section, so that the seal is released, the capsule is depressurized, the tea leaves are no longer immersed, and the brewed tea soup is discharged from the drainage hole;

[0077] The tea capsule of the present invention makes the total flow area of ​​the plurality of drainage holes smaller than the flow area of ​​the inlet section, so that the amount of water entering the body is greater than the amount of water discharged from the cup body, so that during the brewing process of the second and subsequent brews, a certain brewing pressure is still present in the cup body and maintained at a certain value, thereby achieving pressurized brewing of the second and subsequent brews, and the brewing pressure of the second and subsequent brews is lower than the brewing pressure of the first brew;

[0078] The tea capsule of the present invention effectively improves the quality of brewed tea by arranging a water inlet filter membrane and a water outlet filter membrane.

[0079] The above description is only an illustrative specific implementation mode of the present invention and is not intended to limit the scope of the present invention. Any equivalent changes and modifications made by any technician in the field without departing from the concept and principle of the present invention should fall within the scope of protection of the present invention. It should also be noted that the various components of the present invention are not limited to the above-mentioned overall application. The various technical features described in the specification of the present invention can be selected one by one or multiple ones can be selected and used in combination according to actual needs. Therefore, the present invention naturally covers other combinations and specific applications related to the invention point of this case.

Claims

1. A tea capsule, characterized in that: The tea capsule comprises: The cup body is a hollow structure with an open top, a water outlet is provided at the bottom of the cup body, and the cup body contains raw leaf tea; A water outlet nozzle, comprising a silicone seat and a plugging ball, wherein the silicone seat is connected to the water outlet hole, an upper end surface of the silicone seat is provided with an adjustment channel, and the adjustment channel comprises an inlet section, a first accommodating section, a limiting section and a second accommodating section arranged in sequence from top to bottom, the inner diameter of the inlet section and the inner diameter of the limiting section are smaller than the outer diameter of the plugging ball, the inner diameter of the first accommodating section and the inner diameter of the second accommodating section are larger than the outer diameter of the plugging ball, the plugging ball is accommodated in the first accommodating section and can pass through the limiting section and be accommodated in the second accommodating section, and a plurality of drainage holes connected to the second accommodating section are provided on the lower end surface of the silicone seat; The upper cover is connected to the top of the cup body, the upper surface of the upper cover is provided with a water injection hole, the upper end of the water injection hole is covered with a sealing film, and the lower surface of the upper cover is connected with a spray device connected to the water injection hole.

2. The tea capsule according to claim 1, characterized in that The second accommodating section is in a cone shape that is smaller at the top and larger at the bottom.

3. The tea capsule according to claim 1, characterized in that The total flow area of ​​the plurality of drainage holes is smaller than the flow area of ​​the inlet section.

4. The tea capsule according to claim 1, characterized in that The inner surface of the bottom end of the cup body is provided with a filtering groove, the water outlet hole is arranged at the groove bottom of the filtering groove, and a water outlet filtering membrane is connected in the filtering groove.

5. The tea capsule according to claim 1, characterized in that A drainage column is protruding from the bottom surface of the cup body, and the water outlet hole passes through the drainage column.

6. The tea capsule according to claim 1, characterized in that A guide column is convexly provided on the bottom surface of the upper cover, and the water injection hole extends to the lower part of the guide column. The spray device includes at least two spray pipes arranged at intervals along the circumference of the guide column, the first end of the spray pipe is connected to the water injection hole, the second end of the spray pipe is closed, and a plurality of spray holes arranged at intervals are provided on the bottom wall of the spray pipe.

7. The tea capsule according to claim 6, characterized in that The spray device comprises four spray pipes which are arranged at equal intervals along the circumference of the guide column.

8. The tea capsule according to claim 1, characterized in that The water injection hole is a countersunk hole, a water inlet nozzle is connected inside the water injection hole, the water inlet nozzle is provided with a through hole, the through hole is a stepped hole with a larger top and a smaller bottom, and a water inlet filter membrane is connected at the step of the through hole.

9. The tea capsule according to claim 1, characterized in that The upper surface of the upper cover is provided with a central groove, the water injection hole is arranged at the bottom surface of the central groove, and the sealing film covers the bottom surface of the central groove.

10. The tea capsule according to any one of claims 1 to 9, characterized in that The upper cover is connected to the cup body by ultrasonic welding.

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