CN217039696U - Beverage extraction capsule capable of preventing juice from splashing - Google Patents

Abstract

The utility model relates to a beverage extraction capsule for preventing juice from splashing, which comprises a shell with a holding cavity, wherein an opening part at the upper end of the holding cavity is fixed with a packaging part; the inner bottom surface of the accommodating cavity is provided with a concave part, the bottom surface of the concave part is provided with a liquid outlet channel, the top of the concave part is provided with a bottom layer sealing film for covering, and a puncture structure is arranged in the concave part; the method is characterized in that: the puncture structure comprises a plurality of puncture needles and a plurality of waterproof walls, the waterproof walls are annular and extend upwards from the inner bottom surfaces of the concave parts, the liquid outlet channel is positioned in the waterproof wall at the innermost circle, the top of the waterproof wall is provided with a plurality of gaps arranged at intervals, the puncture needles are distributed on the periphery of the waterproof wall at the outermost circle, and the puncture needles and the waterproof wall are positioned below the bottom sealing film. The fluid will flow through the plurality of gaps and step over the waterwalls forcing the beverage into a circuitous path, wherein the waterwalls defining the path attenuate the energy of the fluid jet and promote smooth flow into and out of the liquid channel toward the liquid outlet channel.

Description

Beverage extraction capsule capable of preventing juice from splashing

Technical Field

The utility model relates to a beverage capsule that is used for extraction equipment, is filled with extraction material, especially relates to a beverage capsule of taking backpressure. The extraction equipment is an extraction equipment which can extract corresponding juice from the content in a container by heating water rapidly under high pressure, is suitable for processing the container (capsule) filled with ingredients, and can produce beverage or edible juice after the ingredients interact with liquid introduced into the capsule, such as hot pressurized water, and is commonly used in coffee extraction machines, tea extraction machines, medicinal material extraction machines, 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, and if the coffee machine is used for extracting tea leaves or Chinese medicinal herbs, the residues in the liquid outlet channel and the 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 view of the above current situation, the applicant applied for a chinese utility model patent with CN201822066978.4 (with CN209547794U) a beverage capsule with back pressure, which includes a housing having a containing chamber therein for filling an extraction material, and an opening at the upper end of the containing chamber is fixed with a sealing member for covering the opening, and the present invention is characterized in that: the bottom of the accommodating cavity is provided with an upward convex column base, a penetrating liquid outlet channel is arranged on the column base, a filter sleeve made of a material capable of filtering liquid is sleeved on the column base, the liquid outlet channel is separated from the accommodating cavity by the filter 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 filter sleeve, and when the pressure in the accommodating 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. In addition, the extracted juice basically flows out through the liquid outlet channel without being blocked, the juice flows out with increased capacity, the juice flows out of the liquid outlet channel in a splashing mode after impacting the inner wall of the liquid outlet channel, the splashed juice flows out of the cup body to pollute the cup stand, and the splashed juice can scald a user.

For this reason, the existing beverage capsules with back pressure can be further improved.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that to above-mentioned prior art current situation and provide one kind and make the extraction material of loading in it be difficult for weing and by the beverage extraction capsule that prevents that the juice from splashing of oxidation, this capsule can form level and smooth fluid form and flow out from the export of liquid outlet channel, prevents effectively that the juice from splashing.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: a beverage extraction capsule for preventing juice from splashing comprises a shell with a containing cavity for filling extraction material therein, wherein an opening at the upper end of the containing cavity is fixed with a packaging component for covering; the inner bottom surface of the accommodating cavity is provided with an inward concave part, the bottom surface of the concave part is provided with a liquid outlet channel communicated with the concave part and the outside, the top of the concave part is covered by a bottom sealing film, and a puncture structure used for puncturing the bottom sealing film is arranged in the concave part; the method is characterized in that: the puncture structure comprises a plurality of puncture needles and a plurality of waterproof walls, the waterproof walls are annular and extend upwards from the inner bottom surfaces of the concave parts, the liquid outlet channel is located in a space surrounded by the waterproof walls of the innermost ring, gaps arranged at intervals are formed in the tops of the waterproof walls, the puncture needles are distributed on the periphery of the waterproof walls of the outermost ring, the puncture needles and the waterproof walls are located below the bottom sealing film, the bottom sealing film is not punctured by the puncture needles in a normal state, during extraction, the bottom sealing film is punctured by the puncture needles under the action of water pressure, and the liquid outlet channel is communicated with the concave parts.

Preferably, the gaps on two adjacent waterproof walls are arranged in a staggered mode. It is preferable that the fluid flow in a circuitous path.

The improved structure is characterized in that a plurality of bosses located in the waterproof wall at the innermost ring are arranged on the bottom surface of the sunken part, the bosses are arranged on the periphery of the inlet of the liquid outlet channel at intervals along the circumference, a blocking platform arranged in a lifting mode is arranged above the inlet of the liquid outlet channel and connected with the bosses, the bottom surface of the blocking platform is provided with a flow guide column extending downwards into the liquid outlet channel, and the lower portion of the flow guide column is gradually reduced downwards. The blocking table is arranged to further prevent the liquid outlet channel from being blocked by the tin foil paper layer. The length of the flow guide column is moderate, so that the diagonal line between the upper edge and the lower edge of the water outlet can be cut off, the fluid leaving the outlet of the liquid outlet channel is forced to flow into a cup or other receivers vertically, additional guidance of other parts of the beverage production machine is not needed, and secondary pollution to the beverage is avoided. The fluid forms smooth and stable straight jet under the combined action of the flow guide column and the water outlet.

Preferably, the bottom sealing film is a three-layer composite film comprising a PET layer, an aluminum foil layer and a PP layer, each layer is bonded by an adhesive, the upper layer is the PET layer and is used for protecting the middle aluminum foil layer from being damaged by a welding head in the welding process, the middle aluminum foil layer is used for well preventing water and air from invading, the lower layer is the PP layer which is a heat sealing layer and ensures that the bottom sealing film is the same as the capsule shell body in material and melting point, the heat sealing is reliable and durable, and the sealing film is compatible with solid liquid filling. Meanwhile, the composite film has extremely high barrier property, high mechanical strength, acid resistance, alkali resistance and good ductility. The bottom sealing film is ensured to form a water outlet gap with the top part of the bottom wedge-shaped puncture needle after being punctured, the extraction pressure is well ensured, and the back pressure effect is increased, but the extraction effect is not influenced by instant decompression or unstable pressure caused by large-area cracking or tearing of the traditional adhesive coated aluminum foil or aluminum foil paper.

Further improve, the bottom in above-mentioned holding chamber is equipped with the filtration membrane support ring of upwards extending, and the welding of filtration membrane support ring's top has filtration membrane, and filtration membrane is located the top of bottom seal membrane and the interval sets up. The filtration membrane support ring provides the welding plane for filtration membrane's welding (can hot melt or ultrasonic bonding), and the initial height of filtration ring is 3 ~ 5mm, can adjust different depth of fusion height according to the extraction material of difference during filtration membrane welding, and the higher filtration membrane is more big from the distance of bottom seal membrane, otherwise highly low, and filtration membrane is less from the distance of bottom seal membrane. The bottom sealing membrane is punctured and then forms a water outlet gap with the top of the bottom wedge-shaped puncture needle, when the distance between the filtering membrane and the bottom sealing membrane is smaller, the resistance to the fluid is larger, namely the internal pressure of the capsule is larger, otherwise, the distance between the filtering membrane and the bottom sealing membrane is larger, the resistance to the fluid is smaller, and the internal pressure of the capsule is smaller.

The high-pressure water can only slowly pass through the filtering membrane at the top of the filtering membrane supporting ring to play a role in back pressure; the biggest difference from the traditional extraction container (such as a coffee capsule) is that the beverage extraction 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 to a water cup through a liquid outlet channel, a liquid outlet flow channel or an additionally arranged cleaning loop is not needed in the extraction equipment, 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 bottom sealing film has a good isolation effect, the material is the same as the packaging component, so that in a normal state (when 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, the bottom sealing film expands under the action of water pressure to be punctured by the puncture needle during extraction, 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 the mode that traditional backpressure valve adopted the spring to provide 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 non-woven fabrics layer can block not extracting complete extraction material and flow, and influence juice quality and taste.

Preferably, the filter membrane has a sheet structure made of filter paper or nonwoven fabric. The filter membrane is not limited to a sheet-like material made of a nonwoven fabric or a filter paper material, and may be a member made of a porous structure material having a leakage function.

Preferably, the sealing member is a plastic sheet thermally fused to the opening at the upper end of the case, and an aluminum foil is bonded to the top of the plastic sheet by an adhesive, or: the packaging part is a plastic cover fixed at an opening at the upper end of the shell. The plastic sheet is the same as the shell in material, and the packaging component with a double-layer structure is convenient for heat sealing, so that good air tightness is ensured, and the filling materials in the capsule are protected from being influenced by environmental humidity and air.

Further improved, the upper part of the accommodating cavity is provided with a filter cover, the filter cover is positioned below the packaging component and is arranged at intervals from top to bottom, and the bottom wall of the filter cover is provided with a plurality of water inlet holes in an annular array. The filter cover is injection molded from PP, and the bottom wall of the filter cover is annularly arrayed with a plurality of water inlets so as to reduce the speed of the jet and distribute the fluid in a uniform manner. The filter cap separates the upper chambers of the filler substance layer and holds the filler substance well, keeping it in a compressed state.

As an improvement, the periphery of the top surface of the filter cover is provided with an annular wall extending upwards, and the top surface of the annular wall forms a support for the packaging component. The annular wall forms a support for the enclosing member and ensures that the enclosing member is at a suitable distance from the bottom wall of the filter cap.

The inner wall of the upper part of the accommodating cavity is provided with a plurality of supporting bulges which are inwards convex in the radial direction at intervals along the circumference, the lower bottom surface of the filter cover is placed on the supporting bulges, and the outer wall of the shell is provided with concave surfaces which are in one-to-one correspondence with the supporting bulges. The supporting protrusion can stably support the filter cover, so that the filter cover is prevented from being unevenly stressed and inclined, and meanwhile, the filter cover is limited. Meanwhile, the wall thickness of the capsule shell is guaranteed to be equal, a plurality of water drop-shaped concave surfaces are correspondingly formed on the outer wall of the capsule, the appearance is attractive, fingers can be attached to the capsule when the capsule is taken, and the ergonomic design concept is met.

Compared with the prior art, the utility model has the advantages of:

1. the inner bottom surface of the containing cavity is provided with an inward concave part, a puncture structure used for puncturing a bottom sealing film is arranged in the concave part, the top of the concave part is provided with a bottom sealing film cover, the concave part is arranged to provide a proper installation position for the puncture structure, the bottom sealing film and a puncture needle are simultaneously well separated, the puncture structure is arranged below the bottom sealing film in an initial state after assembly, and the back pressure component is designed in an overhead mode in an invalid additional mode.

2. The puncture structure comprises a plurality of puncture needles and a plurality of waterproof walls, the liquid outlet channel is positioned in a space surrounded by the waterproof walls of the innermost ring, the top of each waterproof wall is provided with a plurality of gaps arranged at intervals, the puncture needles are distributed on the periphery of the waterproof wall of the outermost ring, the liquid outlet channel is kept away from when fluid flows out along with the water outlet gap, the multiple waterproof walls are separated step by step, the waterproof walls are designed into a plurality of gaps uniformly distributed on the upper surface, the gaps of all levels of waterproof walls are staggered and arranged mutually, the fluid flows through the plurality of gaps and turns over the waterproof walls step by step, the beverage is forced to form a circuitous path, the waterproof walls which limit the path weaken the energy of fluid jet flow and promote the liquid outlet channel to face, and the liquid inlet and outlet channel is smoothly flowed.

3. The bottom sealing film has a good isolation effect, the material and the packaging component are made of the same material, in a normal state (when the bottom sealing film is not extracted), the external air is isolated, the liquid outlet channel enters the accommodating cavity, the extract is effectively prevented from being affected with damp or being oxidized and deteriorated, when the bottom sealing film is extracted, the bottom sealing film 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.

Drawings

Fig. 1 is a schematic 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 an embodiment of the present invention;

FIG. 4 is a schematic view illustrating a flow direction of a waterway in accordance with an embodiment of the present invention;

fig. 5 is a perspective sectional view of the housing in the embodiment of the present invention;

fig. 6 is an exploded perspective view of the embodiment of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

As shown in fig. 1 to 6, it is a first embodiment of the present invention.

A beverage extraction capsule for preventing juice from splashing comprises a shell 1 with a containing cavity 11 for filling extraction materials therein, wherein the top of the shell 1 is provided with an annular edge, and an opening at the upper end of the containing cavity 11 is fixed with a packaging part 2 for covering; the packaging component 2 is a plastic sheet which is welded at the opening at the upper end of the shell 1 in a hot-pressing mode, and the top of the plastic sheet is bonded with an aluminum foil through an adhesive; alternatively, the packing member 2 is a plastic cover fixed to an opening at the upper end of the housing 1.

The inner bottom surface of the accommodating cavity 11 is provided with an inward concave part 111, the bottom surface of the concave part 111 is provided with a liquid outlet channel 12 for communicating the concave part 111 with the outside, the top of the concave part 111 is provided with a bottom sealing film 3 for covering, and the concave part 111 is internally provided with a puncture structure for puncturing the bottom sealing film 3.

The bottom layer sealing film 3 in the embodiment adopts a three-layer composite film of a PET layer, an aluminum foil layer and a PP layer, each layer is bonded by an adhesive, the upper layer is the PET layer, the middle layer is the aluminum foil layer, and the lower layer is the PP layer.

The puncture structure comprises a plurality of puncture needles 4 and a plurality of waterproof walls 5, wherein the waterproof walls 5 are annular and extend upwards from the inner bottom surface of the concave part 111, the liquid outlet channel 12 is positioned in a space surrounded by the waterproof walls 5 at the innermost ring, the top of each waterproof wall 5 is provided with a plurality of gaps 51 arranged at intervals, and the gaps 51 on the two adjacent waterproof walls 5 are arranged in a staggered manner. The prickers 4 are distributed on the periphery of the waterproof wall 5 at the outermost ring, the prickers 4 and the waterproof wall are positioned below the bottom sealing film 3, under the normal state, the prickers 4 do not pierce the bottom sealing film 3, during extraction, the bottom sealing film 3 is pierced by the prickers 4 under the action of water pressure, and the liquid outlet channel 12 is communicated with the concave part 111.

The bottom surface of the sunken part 111 is provided with a plurality of bosses 13 positioned in the innermost waterproof wall 5, the bosses 13 are circumferentially arranged at intervals at the periphery of the inlet of the liquid outlet channel 12, a blocking platform 14 which is arranged in a raised manner is arranged above the inlet of the liquid outlet channel 12, the blocking platform 14 is connected with each boss 13, the bottom surface of the blocking platform 14 is provided with a flow guide column 15 which extends downwards into the liquid outlet channel 12, and the lower part of the flow guide column 15 is gradually reduced downwards.

The bottom of the accommodating cavity 11 is provided with a filtering membrane supporting ring 16 extending upwards, a filtering membrane 6 is welded at the top of the filtering membrane supporting ring 16, and the filtering membrane 6 is positioned above the bottom sealing membrane 3 and arranged at intervals. The filtering membrane 6 is a sheet structure made of filter paper or non-woven fabric.

The upper portion in the holding chamber 11 is equipped with strains lid 7, strains lid 7 and is located the below of encapsulation part 2 and sets up at upper and lower interval, strains the diapire of lid 7 and is equipped with a plurality of inlet openings 71 that are annular array. The filter cap 7 is injection moulded from PP and the bottom wall of the filter cap 7 is annularly arrayed with a plurality of water inlets 71 so as to reduce the speed of the jets and distribute the fluid in a uniform manner. The filter cap 7 separates the upper chambers of the filling substance layer and holds the filling substance well, keeping it in a compressed state. The filter cover 7 is provided with an upwardly extending annular wall 72 at its top peripheral edge, and the top surface of the annular wall 72 forms a support for the enclosing member 2. A plurality of radially inward convex supporting bulges 8 are arranged on the inner wall of the upper part of the accommodating cavity 11 at intervals along the circumference, the lower bottom surface of the filter cover 7 is placed on the supporting bulges 8, and concave surfaces 17 which correspond to the supporting bulges 8 one by one are formed on the outer wall of the shell 1.

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

the high-pressure water can only slowly pass through the filtering membrane 6 at the top of the filtering membrane supporting ring 16 to play a role of back pressure; the biggest difference with the traditional extraction container (such as a coffee capsule) is that the beverage extraction 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 12, a liquid outlet flow 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 bottom sealing film 3 has a good isolation effect, the material is the same as the packaging component, so that in a normal state (when not extracted), isolated outside air has the liquid outlet channel 12 to enter the accommodating cavity 11, the extract is effectively prevented from being affected with damp or being oxidized and going bad, in addition, when extracted, the bottom sealing film 2 expands under the action of water pressure and is pierced by the puncture needle 4, the liquid outlet channel 12 is communicated with the accommodating cavity 11, and juice normally flows out. The backpressure structure that this capsule adopted has abandoned the mode that traditional backpressure valve adopted the spring to provide backpressure pressure, and the spring can form the pollution to the juice of extraction, and this backpressure part adopts filtration membrane 6 and the bottom seal membrane 3 of food level to make, has avoided the pollution to the juice of extraction, and filtration membrane 3 can block not extracting complete extraction material and flow, and influence juice quality and taste.

The puncturing structure comprises a plurality of puncturing needles 4 and a plurality of waterproof walls 5, the liquid outlet channel 12 is located in a space defined by the innermost waterproof wall 5, a plurality of gaps 51 arranged at intervals are formed in the top of the waterproof wall 5, the puncturing needles 4 are distributed on the periphery of the outermost waterproof wall 5, the liquid outlet channel 12 is kept away from when fluid flows out along with a water outlet gap, the waterproof walls are blocked step by step through the plurality of waterproof walls 5, the plurality of gaps 51 are uniformly distributed on the upper surfaces of the waterproof walls, the gaps 51 of the waterproof walls 5 in all stages are arranged in a staggered mode, the fluid flows through the plurality of gaps and turns over the waterproof walls step by step, and beverages are forced to form a circuitous path, as shown in fig. 4, the waterproof walls defining the path weaken the energy of fluid jet flow and promote the fluid to face the liquid outlet channel 12, and smoothly flow into and out the liquid outlet channel 12.

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 description of the present invention and simplification of description, but does not indicate or imply that the device or element referred to 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 (10)

1. A beverage extraction capsule for preventing juice from splashing comprises a shell (1) which is internally provided with a containing cavity (11) for filling extraction substances, wherein an opening at the upper end of the containing cavity (11) is fixedly provided with a packaging part (2) for covering; the inner bottom surface of the accommodating cavity (11) is provided with an inward concave part (111), the bottom surface of the concave part (111) is provided with a liquid outlet channel (12) for communicating the concave part (111) with the outside, the top of the concave part (111) is provided with a bottom sealing film (3) for covering, and a puncture structure for puncturing the bottom sealing film (3) is arranged in the concave part (111); the method is characterized in that: the puncturing structure comprises a plurality of puncturing needles (4) and a plurality of waterproof walls (5), wherein the waterproof walls (5) are annular and are arranged in the inner bottom surface of the concave part (111) in an upward extending mode, the liquid outlet channel (12) is located in a space surrounded by the waterproof walls (5) of the innermost ring, gaps (51) formed in the top of the waterproof walls (5) at intervals are formed, the puncturing needles (4) are distributed on the periphery of the waterproof walls (5) of the outermost ring, the puncturing needles (4) and the waterproof walls are located below the bottom sealing film (3), in a normal state, the puncturing needles (4) do not puncture the bottom sealing film (3), and during extraction, the bottom sealing film (3) is punctured by the puncturing needles (4) under the action of water pressure, and the liquid outlet channel (12) is communicated with the concave part (111).

2. The beverage extraction capsule for preventing splashing of juice according to claim 1, wherein: the gaps (51) on two adjacent waterproof walls (5) are arranged in a staggered way.

3. The juice splash prevention beverage extraction capsule as recited in claim 1, wherein: the bottom surface of the sunken part (111) is provided with a plurality of bosses (13) positioned in the innermost waterproof wall (5), the bosses (13) are arranged at the periphery of the inlet of the liquid outlet channel (12) at intervals along the circumference, a blocking platform (14) is arranged above the inlet of the liquid outlet channel (12) in a raised manner, the blocking platform (14) is connected with the bosses (13), the bottom surface of the blocking platform (14) is provided with a flow guide column (15) extending downwards into the liquid outlet channel (12), and the lower part of the flow guide column (15) is gradually reduced downwards.

4. The beverage extraction capsule for preventing splashing of juice according to claim 1, wherein: the bottom sealing film (3) is a three-layer composite film comprising a PET layer, an aluminum foil layer and a PP layer, each layer is bonded by an adhesive, the upper layer is the PET layer, the middle layer is the aluminum foil layer, and the lower layer is the PP layer.

5. The juice splash prevention beverage extraction capsule as recited in claim 1, wherein: the bottom of the accommodating cavity (11) is provided with a filtering membrane supporting ring (16) which extends upwards, a filtering membrane (6) is welded at the top of the filtering membrane supporting ring (16), and the filtering membrane (6) is positioned above the bottom sealing membrane (3) and is arranged at intervals.

6. The beverage extraction capsule for preventing splashing of juice according to claim 5, wherein: the filtering membrane (6) is of a lamellar structure made of filter paper or non-woven fabric.

7. The beverage extraction capsule for preventing splashing of juice according to claim 1, wherein: the packaging component (2) is a plastic sheet which is welded at an opening at the upper end of the shell (1) in a hot-pressing mode, and the top of the plastic sheet is bonded with an aluminum foil through an adhesive; or the packaging component (2) is a plastic cover fixed at an opening at the upper end of the shell (1).

8. The juice splash prevention beverage extraction capsule as recited in claim 1, wherein: the upper portion in holding chamber (11) is equipped with strains lid (7), strains lid (7) and is located the below of encapsulation part (2) and upper and lower interval setting, strains the diapire of lid (7) and is equipped with a plurality of inlet openings (71) that are annular array.

9. The juice splash prevention beverage extraction capsule as recited in claim 8, wherein: the periphery of the top surface of the filter cover (7) is provided with an annular wall (72) extending upwards, and the top surface of the annular wall (72) supports the packaging component (2).

10. The juice splash prevention beverage extraction capsule as recited in claim 8, wherein: a plurality of radially inward-protruding supporting protrusions (8) are arranged on the inner wall of the upper portion of the accommodating cavity (11) at intervals along the circumference, the lower bottom surface of the filter cover (7) is placed on the supporting protrusions (8), and concave surfaces (17) corresponding to the supporting protrusions (8) one to one are formed on the outer wall of the shell (1).

Images