CN115153300A

CN115153300A - Improved beverage capsule with back pressure

Info

Publication number: CN115153300A
Application number: CN202110366779.9A
Authority: CN
Inventors: 汪天平
Original assignee: Zhejiang Xiwen Intelligent Technology Co ltd
Current assignee: Zhejiang Xiwen Intelligent Technology Co ltd
Priority date: 2021-04-06
Filing date: 2021-04-06
Publication date: 2022-10-11

Abstract

The invention relates to an improved beverage capsule with back pressure, which comprises a shell, wherein the shell is internally provided with a containing cavity for filling extraction substances, the bottom surface of the shell is provided with a liquid outlet channel, and an opening at the upper end of the containing cavity is fixedly provided with a packaging part for covering the opening, and the beverage capsule with back pressure is characterized in that: the liquid outlet channel is communicated with the containing cavity. The beverage capsule can directly extract effective components of the extract without back pressure generated by extraction equipment, and the extract is not easy to be affected with moisture and oxidized under conventional state.

Description

Improved beverage capsule with back pressure

Technical Field

The present invention relates to a beverage capsule filled with an extraction substance for an extraction device, in particular a beverage capsule with back pressure. The extraction device is an extraction device which quickly heats water under high pressure to extract corresponding juice from the contents in a container, is suitable for processing a container (capsule) filled with ingredients which can produce beverage or edible juice after interaction with liquid introduced into the capsule, such as hot pressurized water, and is commonly used in coffee extractors, tea extractors, herbal medicine decocting machines and the like.

Background

An extraction device is an extraction device for extracting the contents of a container with a corresponding juice by rapidly heating water under high pressure, suitable for processing the container (capsule) containing the ingredients which, after interaction with the liquid introduced into the capsule, such as hot pressurized water, are able to produce a beverage or an edible juice. The extraction equipment comprises a water pump, a heating boiler and an extraction assembly, wherein the extraction assembly comprises a first machine part and a second machine part which can move relatively, the second machine part and the first machine part are in contact and then are sealed and closed to form a sealed extraction cavity for containing capsules, a liquid outlet channel is arranged in the first machine part, a back pressure valve is arranged at the liquid outlet channel to ensure certain extraction pressure, and the liquid outlet channel is connected to a liquid outlet nozzle of the extraction equipment through a liquid outlet pipe.

The existing extraction equipment is only suitable for extracting one substance, for example, a coffee machine can only extract coffee, if the coffee machine is used for extracting tea or Chinese medicinal materials, the residue of the tea or the Chinese medicinal materials in a liquid outlet channel and a liquid outlet pipe can affect other beverages. Especially, the mutual influence of the liquid medicines extracted from two different extraction substances is avoided in the traditional medicine decocting machine, when a next set of Chinese herbal medicines is decocted by the traditional medicine decocting machine, the liquid medicine of the last set of Chinese herbal medicines still has certain residue, the adverse influence is caused on the decoction of the next set of medicines, and even the risk that the two sets of medicines are mutually controlled can be caused. The reason is that the extraction equipment needs to be additionally provided with a liquid outlet channel with back pressure, and if an extraction container capable of directly filling extracted juice with extraction substances at one time can be designed, cross contamination generated when the extraction equipment extracts different extraction substances can be avoided.

In the prior art, the capsule has only one containing cavity for containing a certain amount of extract (such as coffee powder), that is, the prior capsule can only carry out one-stage extraction and can not realize fractional extraction, thus, for the extraction material with higher extraction requirement (requiring high-temperature pressure extraction and longer extraction channel), taking the extraction of medicinal materials as an example, the medicinal materials can not be mixed and loaded, and the medicinal materials need to be extracted, so that the common capsule is not suitable.

In view of the above-mentioned current situation, the applicant of the present application filed chinese utility model patent with No. CN201822066978.4 (publication No. CN 209547794U) ("beverage capsule with back pressure"), including a housing having therein a containing chamber for filling an extraction substance, an opening at an upper end of the containing chamber being fixed with a sealing member for covering, characterized in that: the liquid outlet device comprises a containing cavity, a liquid outlet channel and a filtering sleeve, wherein the containing cavity is provided with a column base, the bottom of the containing cavity is provided with an upward protruding column base, the column base is provided with a penetrating liquid outlet channel, the column base is sleeved with the filtering sleeve made of a material capable of filtering liquid, the liquid outlet channel is separated from the containing cavity by the filtering sleeve, a plug made of a flexible material is inserted into the inner port of the liquid outlet channel, the plug is located in the filtering sleeve, and when the pressure in the containing cavity reaches a certain value, the plug is enabled to deform to open or further open the inner port of the liquid outlet channel.

The aforementioned patents also suffer from the following drawbacks: because the filter sleeve and the plug are both in porous structures, and the liquid outlet channel is directly communicated with the outside air, the outside air can be in contact with the extraction substances in the accommodating cavity of the shell after passing through the liquid outlet channel, the plug and the filter sleeve when the beverage capsule is not used, and the extraction substances (particularly traditional Chinese medicinal materials) are exposed in the air and are easily subjected to damp oxidation, so that the quality guarantee period of the capsule is short.

Disclosure of Invention

The present invention provides a beverage capsule for filling an extraction material, which has a back pressure structure, is not easily affected with moisture and oxidized, and can directly extract effective components of the extraction material without generating back pressure by an extraction device, wherein the juice extracted from the beverage capsule can directly flow out for human use, and the extraction material is not easily affected with moisture and oxidized in a conventional state, so that an extra liquid outlet channel with back pressure is not required in the extraction device using the beverage capsule.

The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a modified takes backpressure beverage capsule, has the casing that is used for filling the holding chamber of extraction material including it in, the bottom surface of casing is equipped with intercommunication holding chamber and external drain channel, and the upper end opening part in holding chamber is fixed with the encapsulation part and covers its characterized in that: the liquid outlet channel is communicated with the containing cavity.

The nonwoven fabric layer is not limited to a sheet-like material made of a nonwoven fabric material, and may be a member made of a porous structure material having a leakage function. Similarly, the foil layer does not only refer to a sheet member made of foil, but also may be made of other similar materials.

In a further improvement, the top surface of the tin foil paper layer is compounded with a second non-woven fabric layer. The second non-woven fabrics layer combines the setting with first non-woven fabrics layer, can better increase the backpressure effect.

In a further improvement, the interior of the spacer ring is connected by a plurality of connecting ribs. The ring intensity is separated in the reinforcing of setting up of splice bar, and the setting of splice bar is also formed the support to first non-woven fabrics layer simultaneously, better avoids under the effect of high pressure water, and first non-woven fabrics layer is broken and is lost the backpressure effect.

In a further improvement, the inner bottom surface of the accommodating cavity is provided with an inward concave part, the puncture needle is arranged in the concave part, the liquid outlet channel is communicated with the concave part, and the backpressure part is placed and limited above the concave part. The arrangement of the concave part provides a proper installation position for the puncture needle, and simultaneously, the back pressure part is well separated from the puncture needle, namely, the puncture needle is ensured to be positioned below the tin foil paper layer in an initial state after assembly, and the design that the back pressure part is overhead is not arranged.

For the convenience with the spacing bottom in the holding chamber of back pressure part, be equipped with a plurality of card muscle along the circumference interval on the internal perisporium of above-mentioned holding chamber lower part, it is spacing to accomplish in the below of card muscle that the back pressure part jamming is. The clamping rib is simple to set and can be integrally formed with the shell, and during assembly, the backpressure component is downwards extruded until the backpressure component is located below the clamping rib, so that the assembling is convenient.

In order to further facilitate the assembly of the back pressure member, preferably, the top surface of the rib is an inclined surface. The back pressure component is pressed downwards, and the back pressure component is easier to move downwards to pass through the clamping rib and enter the lower part of the clamping rib under the action of the inclined plane.

In a further improvement, the felting needles are distributed at intervals; the liquid outlet channel is positioned in a space surrounded by the flanges, and the felting needles are distributed on the periphery of the flanges. The arrangement of the retaining edge plays a role in preventing the liquid outlet channel from being blocked by the tin foil paper layer, and simultaneously slows down the speed of the beverage fat liquid entering the liquid outlet channel.

The liquid outlet channel is characterized in that a plurality of bosses are arranged on the bottom surface of the recessed portion, the bosses are arranged on the periphery of the inlet of the liquid outlet channel at intervals along the circumference, and a blocking platform which is arranged in a raised mode is arranged above the inlet of the liquid outlet channel and connected with the bosses. The blocking table is arranged to further play a role in preventing the liquid outlet channel from being blocked by the tin foil paper layer.

Alternatively, the above-mentioned packaging member is a plastic sheet thermally fused to the opening at the upper end of the casing, or a plastic cover fixed to the opening at the upper end of the casing.

The second technical problem to be solved by the invention is to provide a beverage capsule capable of realizing fractional extraction.

In order to solve the second technical problem, an auxiliary housing is disposed at an upper portion of the accommodating cavity, an auxiliary accommodating cavity for filling an extraction material is formed inside the auxiliary housing, a plurality of liquid outlet holes communicated with the accommodating cavity below the auxiliary housing are formed in a bottom surface of the auxiliary accommodating cavity, and the upper end opening of the auxiliary accommodating cavity is covered by the encapsulating component.

The extraction substances in the accommodating cavity and the auxiliary accommodating cavity can be different or the same. The structure scheme can realize graded extraction, high-pressure water is injected into the auxiliary accommodating cavity from the top punctured packaging part to extract extraction substances in the auxiliary accommodating cavity, juice containing the extraction substances can be injected into the accommodating cavity below the auxiliary shell only through the liquid outlet hole, the juice containing the extraction substances is used for extracting other extraction substances in the accommodating cavity, finally mixed juice enters the separating ring through the first non-woven fabric layer, the tin foil paper layer is pressed under the action of water pressure tensioning, the pressed tin foil paper layer is punctured by the puncturing needle, and finally the juice flows out of the liquid outlet channel after passing through the punctured tin foil paper layer. The scheme is particularly suitable for extracting two different medicinal materials, realizes the function of extracting the medicinal materials by the medicinal materials, and can fully extract the extracted substances.

Compared with the prior art, the invention has the advantages that: the bottom of the containing cavity is clamped and blocked with a back pressure component for separating the liquid outlet channel from the containing cavity, the first non-woven fabric layer at the top of the separating ring is of a porous sheet structure, and high-pressure water can only slowly pass through the first non-woven fabric layer to play a role in back pressure; the biggest difference with the traditional extraction container (such as a coffee capsule) is that the beverage capsule is provided with back pressure, so that the extraction equipment adopting the beverage capsule does not need to be additionally provided with back pressure, extracted juice can directly flow out of a water cup through a liquid outlet channel, a liquid outlet channel does not need to be additionally arranged in the extraction equipment, or an additionally arranged cleaning loop is not needed, the manufacturing and using cost of the extraction equipment is effectively reduced, the capsule is a disposable part, the cross contamination of the extracted juice is effectively avoided, and the extraction equipment can be suitable for extracting the beverage capsules filled with different extraction substances. The tin foil paper layer at the bottom of the separating ring has a good isolating effect, the material of the tin foil paper layer is the same as that of the packaging part, so that in a normal state (when the tin foil paper layer is not extracted), the isolated outside air has a liquid outlet channel to enter the accommodating cavity, the extract is effectively prevented from being damped or oxidized to deteriorate, in addition, during extraction, the tin foil paper layer expands under the action of water pressure and is punctured by the puncture needle, the liquid outlet channel is communicated with the accommodating cavity, and the juice normally flows out. The backpressure structure that this capsule adopted has abandoned traditional backpressure valve and has adopted the mode that the spring provided backpressure pressure, and the spring can form the pollution to the juice of extraction, and this backpressure part adopts plastics, non-woven fabrics layer and the tinfoil paper layer of food level to make, has avoided the pollution to the juice of extraction, and the non-woven fabrics layer can block not extract complete extraction material and flow out, and influence juice quality and taste.

Drawings

FIG. 1 is a first perspective view of a first embodiment of the present invention;

FIG. 2 is a schematic perspective view of a second embodiment of the present invention;

FIG. 3 is a cross-sectional view of a first embodiment of the present invention;

FIG. 4 is an exploded perspective view of the first embodiment of the present invention;

FIG. 5 is a schematic perspective view of a housing of the first embodiment of the present invention;

fig. 6 is a perspective view of a second embodiment of the present invention.

Detailed Description

The invention is described in further detail below with reference to the following examples of the drawings.

As shown in fig. 1 to 5, a first embodiment of the present invention is shown.

An improved beverage capsule with back pressure comprises a shell 1 with a containing cavity 11 for filling extraction materials, a liquid outlet channel 12 communicated with the containing cavity 11 and the outside is arranged on the bottom surface of the shell 1, and a packaging component 2 is fixed at the upper opening of the containing cavity 11 for covering. The packaging part 2 is a plastic sheet which is welded on the opening of the upper end of the shell 1 by hot pressing, or a plastic cover which is fixed on the opening of the upper end of the shell 1, and the packaging part of the existing coffee capsule can be referred to. The housing 1 has an annular rim 16 at the upper opening for pressing an end piece of the extraction apparatus to form a seal.

The bottom jamming of holding chamber 11 has back pressure part 3, and this back pressure part 3 will go out liquid channel 12 and keep apart with holding chamber 11, is equipped with a plurality of calories of muscle 112 along the circumference interval on the internal perisporium of holding chamber 11 lower part, it is spacing that the jamming of back pressure part 3 is accomplished in the below of card muscle 112. The top surface 1121 of the rib 112 is an inclined surface.

The back pressure component 3 comprises a separating ring 31, the top of the separating ring 31 is covered by a first non-woven fabric layer 32, the bottom of the separating ring 31 is covered by a tin foil paper layer 33, the bottom surface of the accommodating cavity 11 is provided with a puncture needle 13 for puncturing the tin foil paper layer 33, the shape of the puncture needle 13 can refer to the prior art, the puncture needle 13 is positioned below the tin foil paper layer 33, the puncture needle 13 does not puncture the tin foil paper layer 33 under normal state, during extraction, when the pressure inside the accommodating cavity 11 reaches a certain value, the tin foil paper layer 33 is punctured by the puncture needle 13 under the action of water pressure, and the liquid outlet channel 12 is communicated with the accommodating cavity 11.

The top surface of the tin foil paper layer 33 is compounded with a second non-woven fabric layer 33. The interior of the spacer ring 31 is engaged by a plurality of tie bars 311. The inner bottom surface of the containing cavity 11 is provided with an inward concave part 111, the puncture needle 13 is arranged in the concave part 111, the liquid outlet channel 12 is communicated with the concave part 111, and the back pressure part 3 is placed and limited above the concave part 111.

The puncture needles 13 are distributed at intervals; the central position of the inner bottom surface of the accommodating cavity 11 is provided with a baffle 113 which extends upwards to form a ring shape, the top of the baffle 113 is provided with a plurality of gaps 1131 which are arranged at intervals, the liquid outlet channel 12 is positioned in the space surrounded by the baffle 113, and the pricker 13 is distributed at the periphery of the baffle 113.

The bottom surface of the concave part 111 is provided with a plurality of bosses 14, the bosses 14 are circumferentially arranged at intervals at the periphery of the inlet of the liquid outlet channel 12, a blocking platform 15 which is raised is arranged above the inlet of the liquid outlet channel 12, and the blocking platform 15 is connected with each boss 14.

The upper portion in the accommodating cavity 11 is provided with an auxiliary housing 4, an auxiliary accommodating cavity 41 for filling extraction substances is formed inside the auxiliary housing 4, a plurality of liquid outlet holes 411 communicated with the accommodating cavity 11 below the auxiliary housing 4 are formed in the bottom surface of the auxiliary accommodating cavity 41, and the upper end opening of the auxiliary accommodating cavity 41 is covered by the packaging component 2. Specifically, a plurality of resting ribs 17 may be provided on an upper inner wall of the accommodating chamber 11 at intervals along the circumference, and the bottom surface of the auxiliary housing 4 rests on the resting ribs 17.

The working principle and the process of the beverage capsule are as follows:

the extraction substances in the accommodating chamber 11 and the auxiliary accommodating chamber 41 may be different or the same. The structural scheme can realize graded extraction, high-pressure water is injected into the auxiliary accommodating cavity 41 from a gap of the packaging part 2 with a punctured top to extract an extraction substance in the auxiliary accommodating cavity 41, juice containing the extraction substance can only be injected into the accommodating cavity 11 below the auxiliary shell 4 through the liquid outlet 411 hole, the juice containing the extraction substance extracts another extraction substance in the accommodating cavity 11, the juice mixing the two extraction substances finally enters the separating ring 31 through the first non-woven fabric layer 32, the tin foil paper layer 33 is pressed under the action of water pressure tensioning, the pressed tin foil paper layer 33 is punctured by the puncture needle, and finally the juice flows out of the liquid outlet channel 12 through the punctured tin foil layer 33 and then directly flows into a cup for people to eat. The scheme is particularly suitable for extracting two different medicinal materials, realizes the function of extracting the medicinal materials by the medicinal materials, and can fully extract the extracted substances.

The beverage capsule is provided with back pressure, the back pressure is set to fully extract the extracted substances effectively and fully, the extraction equipment adopting the beverage capsule is not required to be additionally provided with the back pressure, the extracted juice can directly flow out to a water cup through the liquid outlet channel 12, a liquid outlet flow channel is not required to be additionally arranged in the extraction equipment, or an additionally arranged cleaning loop is not required, the manufacturing and using cost of the extraction equipment is effectively reduced, the capsule is a disposable part, the cross contamination of the extracted juice is effectively avoided, and the extraction equipment can be suitable for extracting the beverage capsules filled with different extracted substances.

Meanwhile, the tin foil paper layer 33 at the bottom of the separating ring 31 has a good isolating effect, and is made of the same material as the packaging component, so that in a normal state (when not extracted), the external air is isolated, a liquid outlet channel enters the accommodating cavity, extracts are effectively prevented from being affected with damp or being oxidized and deteriorated, in addition, during extraction, the tin foil paper layer 33 expands under the action of water pressure and is punctured by a puncture needle, the liquid outlet channel 12 is communicated with the accommodating cavity 11, and juice normally flows out.

Fig. 6 shows a second embodiment of the present invention.

The present embodiment is different from the first embodiment in that: the aforementioned auxiliary housing 4 is not provided.

It should be noted that in the description of the present embodiment, the terms "front, back", "left, right", "up, down", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for convenience of describing the present invention and simplifying the description, but does not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

Claims

1. The utility model provides a modified takes backpressure beverage capsule, has casing (1) that is used for filling the holding chamber (11) of extraction material including it in, and the bottom surface of casing (1) is equipped with intercommunication holding chamber (11) and external liquid outlet channel (12), and the upper end opening part of holding chamber (11) is fixed with encapsulation part (2) and covers, its characterized in that: the liquid outlet device is characterized in that a backpressure component (3) is clamped and stuck at the bottom of the accommodating cavity (11), the liquid outlet channel (12) is separated from the accommodating cavity (11) by the backpressure component (3), the backpressure component (3) comprises a separating ring (31), a first non-woven fabric layer (32) is arranged at the top of the separating ring (31) for covering, a tin foil paper layer (33) is arranged at the bottom of the separating ring (31) for covering, a puncture needle (13) used for puncturing the tin foil paper layer (33) is arranged at the bottom surface of the accommodating cavity (11), the puncture needle (13) is positioned below the tin foil paper layer (33), the puncture needle (13) does not puncture the tin foil paper layer (33) in a normal state, the tin foil paper layer (33) is punctured by the puncture needle (13) under the action of water pressure during extraction, and the liquid outlet channel (12) is communicated with the accommodating cavity (11).

2. The improved beverage capsule with back pressure of claim 1, wherein: and a second non-woven fabric layer (33) is compounded on the top surface of the tin foil paper layer (33).

3. The improved beverage capsule with back pressure of claim 1, wherein: the interior of the separating ring (31) is connected through a plurality of connecting ribs (311).

4. The improved back pressure beverage capsule of claim 1, wherein: the inner bottom surface of the accommodating cavity (11) is provided with an inward concave part (111), the pricker (13) is arranged in the concave part (111), the liquid outlet channel (12) is communicated with the concave part (111), and the backpressure component (3) is placed and limited above the concave part (111).

5. The improved beverage capsule with back pressure of claim 4, wherein: the inner peripheral wall of the lower portion of the accommodating cavity (11) is provided with a plurality of clamping ribs (112) at intervals along the circumference, and the back pressure component (3) is clamped and stopped below the clamping ribs (112) to complete limiting.

6. The improved beverage capsule with back pressure of claim 5, wherein: the top surface (1121) of the clamping rib (112) is an inclined surface.

7. The improved back pressure beverage capsule of claim 1, wherein: the pricking pins (13) are distributed at intervals; the central position of the inner bottom surface of the accommodating cavity (11) is provided with a baffle edge (113) which extends upwards to form a ring shape, the top of the baffle edge (113) is provided with a plurality of gaps (1131) which are arranged at intervals, the liquid outlet channel (12) is positioned in a space surrounded by the baffle edge (113), and the pricker (13) is distributed on the periphery of the baffle edge (113).

8. The improved beverage capsule with back pressure of claim 7, wherein: the bottom surface of the depressed part (111) is provided with a plurality of bosses (14), the bosses (14) are arranged at the periphery of the inlet of the liquid outlet channel (12) at intervals along the circumference, a blocking table (15) which is arranged in a raised mode is arranged above the inlet of the liquid outlet channel (12), and the blocking table (15) is connected with the bosses (14).

9. The improved beverage capsule with back pressure of claim 7, wherein: the packaging part (2) is a plastic sheet which is hot-pressed and welded at the opening at the upper end of the shell (1), or a plastic cover which is fixed at the opening at the upper end of the shell (1).

10. The improved beverage capsule with back pressure as claimed in any of claims 1 to 9, wherein: the upper portion in holding chamber (11) is equipped with auxiliary housing (4), and the inside of this auxiliary housing (4) forms the supplementary holding chamber (41) that is used for packing the extraction material, and the bottom surface of supplementary holding chamber (41) is opened has a plurality of and the communicating play liquid hole (411) of holding chamber (11) of auxiliary housing (4) below, encapsulation part (2) will simultaneously the upper end opening of supplementary holding chamber (41) covers.