CN110589259B

CN110589259B - Filtering mechanism, capsule and beverage machine

Info

Publication number: CN110589259B
Application number: CN201810603882.9A
Authority: CN
Inventors: 朱国军
Original assignee: Guangdong Midea Consumer Electric Manufacturing Co Ltd
Current assignee: Guangdong Midea Consumer Electric Manufacturing Co Ltd
Priority date: 2018-06-12
Filing date: 2018-06-12
Publication date: 2022-07-15
Anticipated expiration: 2038-06-12
Also published as: CN114715553A; CN110589259A; CN114803167A; CN114803167B; CN114715553B

Abstract

The invention discloses a filtering mechanism, a capsule and a beverage machine, wherein the filtering mechanism (100) comprises a central body part (110) and an outer edge filtering part (120) arranged on part or all of the periphery of the central body part, and the outer edge filtering part is provided with a plurality of filtering hole grooves penetrating from a top surface to a bottom surface; the filtering mechanism is circular slice, and outer filter house of following includes along radial filter cell (121) of multichannel of circumference interval distribution, and the radial outer end of radial filter cell is the opening form. The filtering mechanism has the functions of filtering and whipping the beverage brewed in the capsule, and compared with the filtering mechanism arranged above the preservative film, the filtering mechanism is arranged below the preservative film, so that the filtering hole grooves in the filtering mechanism are larger, the beverage can flow out of the filtering hole grooves quickly and smoothly, the situation that the beverage is trapped in the capsule by the filtering mechanism can be prevented, the beverage waste is avoided, and the use experience of a user is favorably improved.

Description

Filtering mechanism, capsule and beverage machine

Technical Field

The invention belongs to the field of household appliances, and particularly relates to a filtering mechanism, and a capsule and beverage machine with the filtering mechanism.

Background

At present, capsule type beverage machines are more and more popular due to the characteristics of simple operation, safety and sanitation, and guaranteed beverage quality. The beverage machine is loaded with capsules, fluid with certain pressure is injected into the capsules to brew the beverage, and the brewed beverage flows out of the capsule outlet to the liquid containing cup body of a user.

In conventional capsules, a preservative film arranged in the capsules divides an inner cavity of the capsules into a material cavity for filling consumables and an overflowing cavity for draining fluid from the material cavity to a capsule outlet, the consumables and the preservative film are isolated through a filtering support provided with a through hole, and a pricking pin member for pricking the preservative film is positioned in the overflowing cavity.

Wherein, for preventing that the consumables from leaking downwards from filtering bracket's perforating hole, set up the perforating hole less usually, like this, be unfavorable for the drink fast and smoothly through filtering bracket's perforating hole outflow downwards, consequently, after drink machine accomplished the operation, just appear the drink that the brew formed more easily because too late from filtering bracket outflow and the situation of being held back in the material chamber temporarily to cause the waste of drink. In addition, take out the capsule and abandon into the in-process of garbage bin with it from the drink machine at the user, the raffinate that temporarily held back in the material chamber also drops downwards from the capsule export relatively easily, and then produces the pollution to user's furniture articles for use etc. brings the not good use experience for the user.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides the filtering mechanism, the capsule with the filtering mechanism and the beverage machine.

In order to achieve the above object, according to a first aspect of the present invention, there is provided a filter mechanism including a central body portion and an outer rim filter portion provided at a part or all of a periphery of the central body portion, the outer rim filter portion being provided with a plurality of filter hole grooves penetrating from a top surface to a bottom surface.

Preferably, filtering mechanism is circular slice, outer edge filter house includes along the radial filter cell of circumference interval distribution's multichannel, the radial outer end of radial filter cell is the opening form.

Preferably, the ratio between the radial length of the radial filter cell and the outer diameter of the filter mechanism is not less than 0.05 and not more than 0.25.

Preferably, the maximum groove width of the radial filter groove is not less than 0.05mm and not more than 2 mm.

Preferably, the number N of the radial filter cells on the outer edge filter part satisfies: n is more than or equal to 20 and less than or equal to 150.

Preferably, the top surface of the central body portion is formed as an upwardly arcuate surface urging fluid on the top surface to flow towards the outer rim filter portion.

Preferably, the top surface of the central body part is higher than the top surface of the outer edge filter part, and the height difference between the two is not more than 5 mm.

According to a second aspect of the present invention, there is accordingly provided a capsule comprising a cover film covering a capsule inlet, a preservative film disposed within the capsule housing and defining with the cover film a cavity for filling with a consumable, and a capsule housing having a capsule inlet and a capsule outlet, wherein the capsule further comprises a film cutter disposed above the preservative film and a filter mechanism disposed below the preservative film, the film cutter being for cutting a cut in the preservative film.

Preferably, the capsule further comprises an outlet drainage structure arranged below the preservative film to guide fluid from the incision to the capsule outlet, a supporting platform arranged along the circumferential direction is arranged on the radial outer side of the outlet drainage structure, and the filtering mechanism is arranged above the outlet drainage structure.

Preferably, the filter mechanism is supported on top of the outlet drainage structure; alternatively, the filter mechanism is supported on the inner peripheral wall of the capsule housing; or, the filtering mechanism is provided with a plurality of supporting pieces extending outwards in the radial direction and downwards to the supporting table in a protruding mode, and the supporting pieces are arranged at intervals in the circumferential direction.

Preferably, the top surface of the supporting platform forms a radially inward downhill surface, a filtering cavity is formed between the bottom surface of the outer edge filtering part and the top surface of the supporting platform, and fluid in the material cavity flows through the notch in the preservative film, the filtering hole groove, the filtering cavity and the outlet drainage structure in sequence and flows out from the capsule outlet.

Preferably, a bottom support platform protruding downwards is formed on the periphery of the bottom surface of the central body part; wherein, in the initial state of the central body part, the outer peripheral surface of the outer edge filtering part is abutted against the inner peripheral wall of the capsule shell, an axial gap is formed between the bottom surface of the bottom support platform and the top surface of the outlet drainage structure, and in the compressed state of the central body part, the bottom support platform is pressed against the top surface of the outlet drainage structure.

Preferably, the distance between the outer periphery of the outer rim filter portion and the inner peripheral wall of the capsule housing is not more than 2 mm.

Preferably, the cut out from the plastic wrap is positioned right above the outer edge filter part.

Preferably, the membrane cutting cutter disc comprises a cutter disc body, a cutting blade for deformation cutting is formed on the surface of the cutter disc body, one end of the cutting blade is integrally connected with the cutter disc body, and the other end of the cutting blade is a free end provided with a cutting edge; when the film cutting cutter disc is pressed, the free end of the cutting blade moves downwards and linearly cuts the preservative film due to the pressing of the film cutting cutter disc.

Preferably, the cutting blade is a strip blade that tapers from a connecting end to the free end.

Preferably, the membrane cutter disc comprises a plurality of fan-shaped cutting blades, and the plurality of cutting blades are annularly distributed on the surface of the body of the cutter disc body and are sequentially spaced along the circumferential direction; alternatively, the membrane cutter disc includes a plurality of said cutting blades arranged at circumferentially spaced intervals, said cutting blades extending in a radial direction.

Preferably, the membrane cutter disc comprises an inner cutting member, an outer ring fixing portion and a connecting rib for connecting the inner cutting member and the outer ring fixing portion, and a cutting blade downwardly extends from the bottom surface of the inner cutting member; when the inner cutting piece is pressed to move downwards, the connecting ribs are pressed to deform and push the inner cutting piece to generate circumferential rotation, so that the cutting blade moves downwards and linearly cuts the preservative film.

Preferably, the upper end of the connecting rib is connected with the inner cutting piece, the lower end of the connecting rib is connected with the outer ring fixing portion, and a radial connecting line between the center of the upper end and the circle center of the membrane cutting cutter disc is perpendicular to a central connecting line between the center of the upper end and the center of the lower end.

Preferably, interior cutting member is including being circular flaky center cutting portion and outer loop filter house, outer loop filter house is equipped with along circumference interval distribution and from the top surface to the multichannel filtration groove of bottom surface run through, cutting blade follows the bottom surface of center cutting portion stretches out downwards.

Preferably, the inner cutting piece comprises an unpressurized initial position and a pressing position after being pressed and moved, the inner cutting piece is higher than the outer ring fixing part at the initial position, the outer ring filtering part is in lap joint with the outer ring fixing part along the annular direction at the pressing position, and fluid above the membrane cutting cutter disc flows downwards through the filter cells and the cuts in sequence.

Preferably, the inner cutting member is annular and has an outer diameter not greater than the inner diameter of the outer ring fixing portion, and the inner cutting member is at least partially higher than the outer ring fixing portion.

Preferably, the inner cutting member includes a plurality of narrow sectors and a plurality of wide sectors alternately arranged at intervals in a circumferential direction, the upper ends of the tie bars are connected to the narrow sectors, and the cutting blades are downwardly protruded from the bottom surfaces of the wide sectors.

Preferably, the membrane cutting cutter disc comprises an inner cutting part, an outer ring fixing part and a connecting rib, the connecting rib is connected with the inner cutting part and the outer ring fixing part, the inner cutting part comprises a circular flaky central stress plate and a plurality of compression deformation plates which are arranged at intervals along the circumferential direction and extend along the radial direction, the inner ends of the compression deformation plates are connected with the central stress plate, the outer ends of the compression deformation plates are connected with the connecting rib, and a cutting blade downwardly extends from the bottom surface of each compression deformation plate; when the central stress plate is pressed to move downwards, the inner end of the compression deformation plate is driven to move downwards relative to the outer end, so that the cutting blade moves downwards and linearly cuts the preservative film.

Preferably, the compressive deformation board is the middle rhombus flat board big and that both ends are little, and the compressive deformation board the outer end radially outwards stretches out have the splice bar, the terminal slant of splice bar is connected to down the internal periphery of outer loop fixed part.

Preferably, the outer end of the compression deformable plate is provided with a structurally weakened groove located at the top end of the connecting rib; and/or the inner end of the pressure deformation plate is connected with the peripheral wall of the central stress plate, and a spacing groove recessed from the upper surface is formed between the end surface of the inner end and the wall surface of the peripheral wall, so that a weakened connecting part with a thinner thickness is formed between the inner end and the central stress plate.

Preferably, the cutting blade is a strip-shaped blade arranged in a width direction of the compressively deformed plate; or the cutting blade is a strip-shaped blade arranged along the radial direction of the membrane cutting cutterhead.

Preferably, a plurality of turbulence columns are arranged on the top surface of the membrane cutter disc.

According to a third aspect of the present invention, there is also accordingly provided a beverage machine comprising a capsule and a pressurized fluid injection system for injecting pressurized fluid into said capsule.

The filtering mechanism has the function of filtering the brewed beverage in the capsule, and compared with the mode that the filtering mechanism is arranged above the preservative film, the filtering mechanism is arranged below the preservative film, so that the filtering hole grooves in the filtering mechanism are larger, the brewed beverage can quickly and smoothly flow to the capsule outlet through the filtering hole grooves of the filtering mechanism, and the beverage can not be trapped in the capsule by the filtering mechanism, therefore, the waste of the beverage can be effectively avoided, and the use experience of a user can be improved. In addition, the beverage sprayed from the notch can violently impact the central body part and/or the outer edge filtering part to form local turbulence, so that the filtering mechanism also has a whipping function, which is favorable for the consumable to be dissolved more quickly and better, and the beverage is more fragrant and mellow.

Additional features and advantages of the invention will be set forth in the detailed description which follows.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

fig. 1 and 2 are schematic views of a capsule structure in which a membrane cutter disc of a first preferred embodiment of the present invention is fitted in a capsule, wherein fig. 1 is a view of the membrane cutter disc when not under pressure, and fig. 2 shows the view of the membrane cutter disc after being under pressure;

FIG. 3 is an enlarged view of portion A of FIG. 1;

FIG. 4 is an enlarged view of a portion B of FIG. 2;

FIG. 5 is a schematic construction of a first preferred embodiment of the filter mechanism of FIG. 1;

FIG. 6 is a top view of FIG. 5;

FIG. 7 is a cross-sectional view of FIG. 5;

FIG. 8 is a schematic structural view of the capsule shell of FIG. 1;

fig. 9 and 10 are schematic structural views of the membrane cutter disc of fig. 1, wherein fig. 9 shows the cutting blades in a fan-shaped ring shape and formed in an annular distribution on the body surface of the disc body, and fig. 10 shows the cutting blades extending in a radial direction;

FIG. 11 is a schematic structural view of a film cutter disc in accordance with a second preferred embodiment of the present invention;

FIG. 12 is a front view of FIG. 11;

FIG. 13 is a top view of FIG. 11;

FIG. 14 is a bottom view of FIG. 11;

fig. 15 is a schematic structural view of a membrane cutter disc in accordance with a third preferred embodiment of the present invention;

FIG. 16 is a front view of FIG. 15;

FIG. 17 is a top view of FIG. 15;

FIG. 18 is a bottom view of FIG. 15;

fig. 19 is a schematic structural view of a membrane cutter disc in accordance with a fourth preferred embodiment of the present invention;

FIG. 20 is a top view of FIG. 19;

fig. 21 is a bottom view of fig. 19, with cutting blades arranged in the width direction of the compressively deformed sheet;

FIG. 22 is a front view of FIG. 21;

FIG. 23 is a bottom view of FIG. 19 with the cutting blades arranged in a radial direction of the film cutter disc;

FIG. 24 is a front view of FIG. 23;

FIG. 25 is a schematic structural view of a second preferred embodiment of the filter mechanism of FIG. 1;

fig. 26 is a schematic structural view of a fluid diverter according to a preferred embodiment of the present invention.

Description of reference numerals:

100 Filter mechanism 110 Central body section

120 outer edge filter part 121 radial filter groove

200-film 300 preservative film

400 capsule shell 410 capsule outlet

420 supporting table 500 film cutter disc

510 outer ring fixing part 520 inner cutting part

521 cutting blade 522 center cutting portion

523A filtering tank of outer ring filtering part 523

524 central stress plate 525 compression deformation plate

526 structural weakening groove 527 separating grooves

530 connecting rib 540 cutter head body

541 blade processing groove 542 spherical projection

550 spoiler post 600 export drainage structure

700 hollow tube 800 fluid diverter

810 outer annular deflector 820 central undercut

D material cavity E filtering flow cavity

Detailed Description

The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.

It should be noted that the embodiments and features of the embodiments of the present invention may be combined with each other without conflict.

In the present invention, unless specified to the contrary, use of the terms "upper, lower, top and bottom" in the orientation illustrated in the drawings generally refers to the orientation of the components as shown in the drawings or to the orientation of the components relative to each other in the vertical, vertical or gravitational direction. Azimuthal words such as "radial, axial", "inner, outer" are usually for the capsule body or the capsule cavity.

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

The present invention provides a filter mechanism, and referring to fig. 5 to 7, the filter mechanism 100 includes a central body 110 and an outer edge filter 120 disposed on part or all of the periphery of the central body 110, the outer edge filter 120 is provided with a plurality of filter holes penetrating from the top surface to the bottom surface.

Accordingly, the present invention provides a capsule having the above-described filter mechanism 100 assembled therein. In one specific capsule structure shown in fig. 1 to 4, the capsule comprises a covering film 200, a preservative film 300 and a capsule shell 400 with a capsule inlet and a capsule outlet 410, the covering film 200 covers the capsule inlet, the preservative film 300 is arranged in the capsule shell 400 and defines a material cavity D for filling consumables with the covering film 200, wherein the capsule further comprises a film cutting cutter disc 500 and a filtering mechanism 100 which are arranged above the preservative film 300, the filtering mechanism 100 is arranged below the preservative film 300, and the film cutting cutter disc 500 is used for cutting cuts on the preservative film 300.

In the present invention, the filtering mechanism 100 includes the central body 110 and the outer edge filtering portion 120 having a plurality of filtering hole slots, and the filtering mechanism 100 is disposed under the plastic wrap 300, that is, the filtering mechanism 100 has a filtering function and does not need to have a function of isolating consumables from the plastic wrap 300 at the same time, so that the filtering hole slots in the filtering mechanism 100 can be set to be larger, and thus the brewed beverage can flow to the capsule outlet 410 through the filtering hole slots of the filtering mechanism 100 quickly and smoothly, and further the beverage is not retained in the capsule by the filtering mechanism 100, which not only can effectively avoid the waste of the beverage, but also can reduce the probability of the household articles being polluted by the beverage dropping in the process of discarding the capsule by the user, and can greatly improve the user experience. In addition, the fluid from the cavity D is ejected from the cut of the plastic wrap 300 toward the filter mechanism 100, and then hits the central body 110 and/or the outer edge filter 120 to form local turbulence, which facilitates faster and better dissolution of the consumable, so that the flowing beverage is prevented from being entrained with the undissolved consumable, and the beverage is more fragrant.

The filter mechanism 100 may be in the form of a disk, a polygon, or other shapes such as a different shape, and these are not illustrated here. Preferably, in order to provide the filter mechanism 100 with better filtering and whipping effects, the circumferential length of the inner circumferential periphery of the outer edge filter portion 120 should be at least 1/20 of the circumferential length of the outer circumferential periphery of the central body portion 110, and further, the circumferential length of the inner circumferential periphery of the outer edge filter portion 120 should be at least 1/10 of the circumferential length of the outer circumferential periphery of the central body portion 110, which is not limited thereto.

Specifically, referring to fig. 1 to 4 and 8, the capsule further comprises an outlet drainage structure 600 disposed below the preservative film 300 to guide the fluid from the incision to the capsule outlet 410, a support table 420 arranged in a circumferential direction is disposed radially outside the outlet drainage structure 600, and the filter mechanism 100 is disposed above the outlet drainage structure 600. In general, a capsule outlet 410 is formed through the center of the bottom wall of the capsule casing 400, and the outlet guide 600 is provided on the top surface of the bottom wall of the capsule casing 400 surrounding the capsule outlet 410. furthermore, a filter hole groove is formed on the outer edge filter part 120 of the filter mechanism 100, so that the fluid injected from the cut of the plastic wrap 300 passes through the filter hole groove of the filter mechanism 100, then flows into the outlet guide 600 and is converged to the capsule outlet 410 by the outlet guide 600. Wherein the outer rim filter portion 120 of the filter mechanism 100 is preferably located radially outward of the outlet flow directing structure 600. It can be understood that, the farther the outer edge filtering portion 120 of the filtering mechanism 100 is away from the capsule outlet 410, the longer the flow path of the fluid from the filtering hole groove of the outer edge filtering portion 120 to the capsule outlet 410 via the outlet drainage structure 600 is, the more beneficial the beverage can smoothly and continuously flow out from the capsule outlet 410, and the better the user experience can be improved. Of course, the longer the flow of the beverage in the outlet drainage structure 600, i.e. the longer the time the beverage stays in the outlet drainage structure 600, the better the consumable is dissolved, so that the beverage flowing down to the liquid containing cup of the user is more fragrant and mellow.

The outlet flow guiding structure 600 may be a plurality of circles of labyrinth-shaped rib walls (refer to fig. 8) concentrically arranged, or a plurality of flow slowing columns arranged in a manner of improving the fluid outflow performance, or other arrangement forms, which are not described herein again.

In particular, in the capsule of the present invention, employing the double membrane sealing design, with reference to fig. 1, the consumable is sealed in the cavity D defined by the cover membrane 200 and the preservative film 300, and the consumable contained in the capsule can be sealed and preserved until the capsule is not in use. In brewing the beverage, referring to fig. 2, a pressurized fluid is injected into the material cavity D through the hollow tube 700 of the film 200 to brew or extract the consumable, thereby preparing the beverage for the user to taste.

In addition, the film structure may be a simple sealing film, a thin film, a laminated film, or other various optional structures and materials. In addition, the consumable can be soluble dairy product, multi-flavor beverage powder, soup powder, solid granule beneficial to human health or mixed flavor powder, such as milk tea, milk coffee, hot cocoa, protein powder, Chinese medicinal granule, vitamin granule, and mixture of any two or more thereof; alternatively, the consumable may be an insoluble beverage such as coffee, tea, herbs, fiber, oats, and mixtures of two or more thereof. In short, the present invention is not limited to the type, shape, form, etc. of the consumable.

Preferably, the filter mechanism 100 has a circular sheet shape, and the outer edge filter part 120 includes a plurality of radial filter grooves 121 spaced along the circumferential direction, and referring to fig. 5 and 6, the radial outer ends of the radial filter grooves 121 are open. Of course, the filter hole grooves may be through filter holes penetrating from the top surface to the bottom surface and having a rectangular or S-shaped cross section (see fig. 25), and the like, which are not illustrated herein.

The shorter the radial length of the radial filter cells 121 is, the more favorable the filtering is, but the more likely the consumable will block the radial filter cells 121, and the slower the radial length is, the more unfavorable the fluid will flow out from the radial filter cells 121 of the filter mechanism 100; the longer the radial length of the radial filter cells 121, the closer the outer edge filter part 120 of the filter mechanism 100 is to the capsule outlet 410, i.e. the shorter the flow path of the fluid flowing out of the radial filter cells 121 of the outer edge filter part 120 through the outlet flow directing structure 600 to the capsule outlet 410, and the less beneficial the fluid can flow out of the capsule outlet 410 smoothly. For this reason, the ratio between the radial length of the radial filter cells 121 and the outer diameter of the filter mechanism 100 is preferably not less than 0.05 and not more than 0.25.

In addition, in consideration of the particle size of the conventional consumable, insoluble slag particles contained in the pocket D, in order to prevent these particles from flowing out downward through the radial filter cells 121 of the filter mechanism 100, the maximum cell width of the radial filter cells 121 should be set to not less than 0.05mm and not more than 2 mm. In the present embodiment, the number of the radial filter cells 121 disposed on the outer edge filter portion 120 should be not less than 20 and not more than 150, preferably not less than 50 and not more than 100, without being limited thereto.

Preferably, the top surface of the central body 110 is formed to promote the fluid on the top surface to flow to the upward arched surface of the outer edge filter part 120, referring to fig. 2, 4 and 7, the arrangement is such that the fluid directly sprayed from the cut of the plastic wrap 300 to the central body 110 and the fluid splashed from other places to the central body 110 can flow radially outwards along the arched top surface of the central body 110 and downwards to the outer edge filter part 120, and then flow out from the filter hole groove of the outer edge filter part 120, so that the beverage from the material chamber D will not accumulate and remain on the top surface of the central body 110, thereby avoiding the waste of the beverage and facilitating the user experience.

Specifically, when the filtering mechanism 100 has both filtering and whipping functions, the filtering flow path should be optimally designed after the filtering mechanism 100 is assembled in the capsule housing 400. Basically, the top surface of the supporting platform 420 is formed as a downward slope surface facing radially inward, and referring to fig. 1 to 4, a filtering cavity E is formed between the bottom surface of the outer edge filtering portion 120 and the top surface of the supporting platform 420 to receive the filtering flow from the outer edge filtering portion 120, and the fluid in the material cavity D flows through the cut, the filtering hole groove, the filtering cavity E on the plastic wrap 300 and the outlet drainage structure 600 in sequence and flows out from the capsule outlet 410.

The filter mechanism 100 shown in fig. 5 can be detachably mounted at the bottom of the inner cavity of the capsule housing 400 shown in fig. 1, i.e., can be assembled detachably, rather than being fixedly mounted, so that the filter mechanism 100 can be manufactured independently, and the design and manufacturing difficulty of the capsule housing 400 can be effectively simplified.

Specifically, the removable filter mechanism 100 may be supported on top of the outlet flow directing structure 600, see fig. 1 and 3, i.e., the bottom surface of the filter mechanism 100 is pressed against the top surface of the outlet flow directing structure 600; alternatively, the filter mechanism 100 is supported by the inner peripheral wall of the capsule housing 400, i.e., the outer peripheral surface of the outer edge filter part 120 of the filter mechanism 100 abuts against the inner peripheral wall of the capsule housing 400; alternatively, the filter mechanism 100 extends with supporting members extending radially outward and downward to the supporting platform 420, and the supporting members are arranged at intervals along the circumferential direction; of course, the filter mechanism 100 may be supported in other manners, which are not illustrated herein.

Wherein, when the filter mechanism 100 is supported by the outer edge filter part 120 on the inner peripheral wall of the capsule housing 400, an axial gap should preferably be provided between the bottom surface of the filter mechanism 100 and the top surface of the outlet drainage structure 600. Specifically, a bottom support platform protruding downward is formed on the periphery of the bottom surface of the central body portion 110; in the initial state of the central body 110, the outer peripheral surface of the outer edge filter 120 abuts against the inner peripheral wall of the capsule housing 400, and an axial gap is formed between the bottom surface of the bottom support platform and the top surface of the outlet flow guide structure 600, and in the pressed state of the central body 110, the bottom support platform abuts against the top surface of the outlet flow guide structure 600. It will be appreciated that the filter mechanism 100 and the adapted capsule housing 400 are manufactured with tolerances, and/or assembly errors occur more or less when the filter mechanism 100 is installed in the capsule housing 400, so that the outer peripheral surface of the outer rim filter part 120 cannot be entirely abutted against the inner peripheral wall of the capsule housing 400, thus, the consumables entrained in the beverage are leaked into the filtering flow cavity E through the gap between the outer circumferential surface of the outer rim filtering part 120 and the inner circumferential wall of the capsule housing 400, and finally flow out of the capsule outlet 410, and therefore, an axial gap should be provided between the bottom surface of the bottom support platform and the top surface of the outlet flow directing structure 600, so that the fluid pressure in the capsule cavity can be used to force the central body 110 to move downward, and the outer edge filter 120 (e.g. the outer edge filter 120 with the radial filter cells 121) is forced to deform and tightly abut against the inner peripheral wall of the capsule shell 400 in the circumferential direction.

In addition, when the filter mechanism 100 is not supported by the outer edge filter portion 120 on the inner peripheral wall of the capsule housing 400 (for example, the filter mechanism 100 is supported on the top of the outlet drainage structure 600, or the filter mechanism 100 is supported on the top surface of the support table 420 by a plurality of support members disposed along the circumferential direction), referring to fig. 2 and 4, the distance between the outer edge filter portion 120 and the inner peripheral wall of the capsule housing 400 should not be greater than 2mm, otherwise, a large distance is likely to cause the fluid to flow to the filtration volume E through the flow gap formed by the distance between the outer edge filter portion 120 and the inner peripheral wall of the capsule housing 400, without stirring and filtering through the filter hole grooves, and the filtering effect is lost, so that large particles are leaked.

Preferably, referring to fig. 2 and 4, the notch cut on the plastic wrap 300 is located right above the outer edge filter part 120, so that when the film cutter disc 500 forms the notch on the plastic wrap 300, the high-pressure fluid in the material chamber D can be directly sprayed towards the outer edge filter part 120 through the notch, and the sprayed fluid is forced to directly impact the top surface of the outer edge filter part 120 to form local turbulence, or pass through the filter hole slots to impact the inner peripheral wall of the capsule housing 400 and splash back to the outer edge filter part 120 to form local turbulence, so that the filter mechanism 100 also has the function of accelerating stirring, and a better quality beverage can be obtained.

In the membrane cutter disc 500 of the first preferred embodiment of the present invention, referring to fig. 9 and 10, the membrane cutter disc 500 includes a disc body 540, a cutting blade 521 for deforming cutting is formed on a surface of the disc body 540, one end of the cutting blade 521 is integrally connected to the disc body 540, and the other end is a free end provided with a cutting edge; when the film cutter disc 500 is pressed, the free end of the cutting blade 521 moves downwards due to the pressing of the film cutter disc 500 and linearly cuts the preservative film 300.

In the technical scheme, one end of the cutting blade 521 is a connecting end integrally connected with the cutter disc body 540, and the other end is a free end provided with a cutting edge, so that when the film cutting cutter disc 500 is pressed, that is, when the cutting blade 521 is pressed due to the pressing of the film cutting cutter disc 500, the cutting blade 521 can be deformed, so that the free end of the cutting blade 521 moves downwards relative to the connecting end, and the plastic wrap 300 is linearly cut, and finally a long-strip-shaped cut is formed on the plastic wrap 300 by cutting, referring to fig. 1 to 4. It is apparent that the incision made by the linear shearing of the blade edge is quite different from a puncture (i.e., an aperture formed by a conventional lancet member passively puncturing the plastic wrap 300). According to the technical scheme, the preservative film 300 is cut in a unique linear cutting mode, the formed cut is larger, and the water outlet requirement and the brewing requirement are better met, so that the beverage from the material cavity D can smoothly, continuously and uniformly flow into the overflowing cavity through the strip-shaped cut, the beverage drained to the capsule outlet 410 can stably and continuously flow into the liquid containing cup body of a user, and the use experience of the user can be greatly improved.

Preferably, the film cutter disc 500 is fixedly arranged above the preservative film 300, so that the free end of the cutting blade 521 can cut the preservative film 300 when rotating downwards, and a notch is formed on the preservative film 300. Wherein, the fixed mode that sets up in material chamber D of membrane cutting blade disc 500 can have the multiple, for example the form through scalding the welding sets up the outer fringe part of blade disc body 540 on plastic wrap 300, perhaps sets up the outer fringe part of blade disc body 540 in the internal perisporium of capsule shell 400 through fixed connection forms such as pasting on fixedly, and no longer describe herein.

In addition, the cutter disc body 540 is provided with the blade processing groove 541 which penetrates through along the thickness direction on the surface of the body, the blade processing groove 541 is arranged around the outer contour of the cutting blade 521 to process the cutting blade 521, and the cutting blade 521 is formed in such a way, so that the production process is simple, and the production cost of the film cutting cutter disc 500 and even the capsule can be reduced. Of course, there are other ways to form the cutting blades 521 on the body surface of the cutter head body 540, and no one example is given here.

In addition, referring to fig. 9 and 10, the thickness of the cutting blade 521 should be 0.5mm to 1.5mm, and/or the width of the connecting end of the cutting blade 521 with the cutter head body 540 should be 1mm to 5 mm. Specifically, if the thickness of the cutting blade 521 and/or the width of the connecting end is set to be too large, the rigidity will be too strong, and it is inconvenient for the free end of the cutting blade 521 to move downwards relative to the connecting end after being pressed, so as to cut the plastic wrap 300; however, if the thickness of the cutting blade 521 is set too small, the rigidity will be too weak, which is not favorable for the cutting blade 521 to cut the plastic wrap 300; in addition, if the width of the connecting end is set to be too small, the cutting blade 521 is likely to fall off from the cutter head body 540 due to external force, so that the cutting blade 521 can no longer cut the plastic wrap 300.

Preferably, the cutting blade 521 is a strip-shaped blade which is gradually reduced from the connecting end to the free end, and with continued reference to fig. 9 and 10, the cutting blade 521 with such a shape is simpler in structure and production process, i.e., is beneficial to reduce cost, and in addition, compared with the cutting blade 521 which is provided with other shapes, such as a diamond-shaped blade with a large middle part and two small ends, the cutting blade 521 is provided with such a shape, so that when the cutter head body 540 is pressed, a long-strip-shaped cut with an appropriate length can be cut on the plastic wrap 300.

Specifically, the membrane cutter disc 500 includes a plurality of cutting blades 521 in a fan-ring shape, referring to fig. 9, and the plurality of cutting blades 521 are formed on the disc body 540 to be annularly distributed and sequentially spaced in the circumferential direction. Preferably, the plurality of cutting blades 521 are arranged on the cutter disc body 540 at equal intervals along the circumferential direction, so that the cuts cut by the cutting blades 521 on the preservative film 300 are also arranged at equal intervals along the circumferential direction of the cutter disc body 540, and thus, the situation that the beverage flowing out of the capsule outlet 410 is deflected can be effectively avoided, and the operation experience of a user can be improved.

Wherein the fan ring angle of the cutting blade 521 should preferably be set not less than 60 ° and not more than 100 °. It will be appreciated that the smaller the fan angle of the cutting blade 521, the more rigid it is, and the less likely it is that the free end of the cutting blade 521 will be forced downward. In addition, the larger the fan-ring angle of the cutting blades 521, the smaller the number of cutting blades 521 that can be disposed on the corresponding plastic film cutting cutter disc 500, that is, the smaller the number of cuts formed on the plastic wrap 300 by the cutting blades 521, which is more disadvantageous for the beverage to flow out from the capsule outlet 410 evenly, smoothly and continuously. Preferably, to avoid the beverage flowing out of the capsule outlet 410 from being deflected, the number of cutting blades 521 should be no less than 3 and no more than 8.

In addition, a plurality of turbulence columns 550 are arranged on the top surface of the cutter head body 540, referring to fig. 9 and 10, so that when pressurized fluid is injected into the capsule, the turbulence columns 550 can be used for impacting the fluid and forming local turbulence, which is beneficial to faster and better dissolution of consumables and can make brewed drinks more fragrant and mellow. Further, the turbulence columns 550 and the cutting blades 521 are arranged alternately along the circumferential direction, so that in the process that fluid flows out from the material cavity D through the cuts on the plastic wrap 300, the fluid forms an annular vortex in the capsule, and thus, the turbulence columns 550 and the cutting blades 521 which are arranged alternately along the circumferential direction can stir undissolved consumables for many times again, thereby effectively avoiding the situation that the taste of the beverage is not good due to complete dissolution of the consumables, and being beneficial to improving the use experience of users.

Specifically, referring to fig. 10, the membrane cutter disc 500 includes a plurality of cutting blades 521 arranged at intervals in the circumferential direction, and the cutting blades 521 extend in the radial direction. To prevent the beverage flowing out of the capsule outlet 410 from being biased, it is preferable that a plurality of cutting blades 521 are provided to be equally spaced in the circumferential direction on the cutter head body 540.

Further, the free end of the cutting blade 521 is located radially outward of the connection end; and/or, a plurality of turbulence columns 550 are provided on the top surface of the cutter head body 540, the turbulence columns 550 are disposed near the free ends, and reference is continued to fig. 10, so that by providing the turbulence columns 550 on the top surface of the cutter head body, when the pressurized fluid is injected into the capsule, the turbulence columns 550 can be used to impact the fluid and form local turbulence, which is also beneficial to more rapid and complete dissolution of the consumables, and thus, the brewed beverage is more savoury and mellow. In addition, set up vortex post 550 on the top surface of the blade disc body 540 that is close to the free end, then when the incision on plastic wrap 300 flows out from material chamber D fast ground way, vortex post 550 still can carry out the secondary to the consumer that does not dissolve and beat, like this, can avoid effectively because the consumer does not dissolve completely and the not good situation of drink taste appears, is favorable to improving user's use and experiences.

Preferably, referring to fig. 9 and 10, an upwardly protruding protrusion is formed at the center of the top surface of the cutter head body 540, and further, an upwardly protruding spherical protrusion 542 is formed at the center of the top surface of the cutter head body 540, so that when the beverage machine injects a pressurized fluid into the capsule through the hollow tube 700, referring to fig. 2, when the pressurized fluid is sprayed toward the spherical protrusion 542, the spherical protrusion 542 can uniformly reflect and disperse the undershoot fluid, so as to promote the consumable contained in the material cavity D to be dissolved more quickly and completely, which is beneficial to improving the drinking taste of the brewed beverage, and further, the use experience of a user is improved.

Specifically, the free end of the cutting blade 521 can be moved downward by a variety of means, such as hydrostatic driving caused by increasing fluid pressure in the material chamber D, or a fluid flow divider 800 with a flow guiding hole penetrating therethrough is disposed in the capsule, see fig. 26, and the fluid flow divider 800 divides the material chamber D into an upper fluid flow dividing chamber and a lower beverage extraction chamber, and as the fluid pressure in the fluid flow dividing chamber increases, the fluid flow divider 800 is deformed and moved downward to press down the consumable filled in the beverage extraction chamber, so as to move the free end of the cutting blade 521 downward by pressure, which is not illustrated herein.

In a membrane cutter disc 500 of a second preferred embodiment of the present invention, with reference to fig. 11, the membrane cutter disc 500 includes an inner cutter 520, an outer ring fixing portion 510, and a connecting rib 530 connecting the inner cutter 520 and the outer ring fixing portion 510, with cutting blades 521 projecting downward from the bottom surface of the inner cutter 520; when the inner cutting member 520 is pressed and moved downwards, the connecting rib 530 is pressed and deformed and pushes the inner cutting member 520 to generate circumferential rotation, so that the cutting blade 521 moves downwards and performs linear cutting on the plastic wrap 300.

In the technical scheme, the film cutting cutter disc 500 is arranged above the preservative film 300 (i.e. the film cutting cutter disc 500 is accommodated in the material cavity D), when the inner cutting piece 520 is pressed, pressure can be applied below the connecting rib 530, so that the connecting rib 530 is deformed or moved, the inner cutting piece 520 is driven to move downwards and simultaneously perform circumferential rotation, at the moment, the cutting blade 521 rotates and moves downwards along with the inner cutting piece 520, and further, the cutting blade 521 arranged on the inner cutting piece 520 moves on the preservative film 300 and linearly cuts a long strip-shaped annular cut, so that compared with a hole formed by the existing puncture needle member which is passively punctured through the preservative film 300, the technical scheme can cut the long strip-shaped annular cut on the preservative film 300 in a unique rotating linear cutting mode, the formed cut is larger and better meets the brewing requirement and water outlet requirement, and therefore, drinks brewed in the material cavity D can be smoothly and uniformly brewed, Continuously flows out from the preservative film 300 through the strip-shaped notch, so that the beverage drained to the capsule outlet 410 can smoothly and continuously flow into the liquid containing cup body of the user, and the use experience of the user can be greatly improved.

Preferably, the upper end of the connecting rib 530 is connected to the inner cutting member 520, and the lower end of the connecting rib 530 is connected to the outer ring fixing portion 510, referring to fig. 11 and 13, in order to enable the inner cutting member 520 to move downward under pressure, the cutting blade 521 can rotationally cut the plastic wrap 300 under the driving of the connecting rib 530, and a circumferential included angle α using the circle center of the film cutter disc 500 as a reference should be formed between the upper end center of the upper end and the lower end center of the lower end.

Further, with continued reference to fig. 11 and 13, a radial line connecting the center of the upper end and the center of the circle is perpendicular to a line connecting the center of the upper end and the center of the lower end, and the inner cutting member 520 and the outer ring fixing portion 510 are located at the same horizontal plane. Specifically, if the angle between the radial connecting line and the central connecting line is smaller than 90 °, the connecting rib 530 is easily pressed when the inner cutting member 520 is pressed downward, so that the inner cutting member 520 cannot move downward to the downward pressing position; if the included angle between the radial connecting line and the central connecting line is set to be greater than 90 °, the connecting rib 530 is easily bent or even folded when being pressed by the inner cutting member 520, so that the cutting blade 521 cannot cut the plastic wrap 300 by rotary cutting.

In order for the connection ribs 530 to support the inner cutter 520, referring to fig. 11, the cross-sectional area of the connection ribs 530 should preferably be not less than 0.25mm ². Further, the cross-sectional area of the connection rib 530 should be set not more than 0.75mm²Thus, when the inner cutter 520 is pressed and moved downward, the connecting rib 530 is deformed to drive the inner cutter 520 to rotate circumferentially.

In addition, since the incision formed by the film cutter disc 500 to rotary cut the preservative film 300 is relatively large, the undissolved consumables are easily caught in the beverage and flow out from the capsule outlet 410 through the incision, which affects the drinking taste of the user. Therefore, in order to reduce the content of the consumables remaining in the drinks flowing out from the cuts of the plastic wrap 300, preferably, referring to fig. 11 to 14, the inner cutter 520 includes a central cutter 522 having a circular sheet shape and an outer filter 523, the outer filter 523 is provided with a plurality of filter grooves 523A distributed at intervals in a circumferential direction and penetrating from a top surface to a bottom surface, and the cutting blade 521 protrudes downward from the bottom surface of the central cutter 522. With such arrangement, fluid can be fully filtered and stirred at an accelerated speed through the multi-channel filtering grooves 523A of the membrane cutting cutter disc 500, then flows radially inwards into the cut formed by rotary cutting of the cutting cutter disc, and finally flows out from the capsule outlet 410 at the bottom of the capsule shell 400, so that a beverage with better quality can be obtained by enabling the membrane cutting cutter disc 500 to have the functions of filtering and stirring at an accelerated speed.

Referring to fig. 11 and 13, the ratio of the radial length of the filter grooves 523A to the outer diameter of the inner cutter 520 should preferably be not less than 0.05 and not more than 0.25. Specifically, the shorter the radial length of the filter cell 523A is, the more advantageous the filtration is, but the more likely the filter cell 523A is clogged with the consumable; the longer the radial length of the filter groove 523A, the smaller the force-bearing area of the central cutting portion 522, and the less the inner cutting member 520 is pressed and moved downward. In addition, in consideration of the particle size of the conventional consumable contained in the material chamber D, in order to prevent the particles of the consumable from flowing out of the cut on the plastic wrap 300 through the filter cell 523A, the maximum cell width of the filter cell 523A should be set to not less than 0.05mm and not more than 2 mm.

Further, the inner cutting member 520 includes an initial position where it is not pressed and a pressing position where it is pressed and moved, in the initial position, referring to fig. 11 and 12, the inner cutting member 520 is higher than the outer ring fixing portion 510, and in the pressing position, the outer ring filtering portion 523 is overlapped with the outer ring fixing portion 510 in a ring shape, so that the fluid above the membrane cutter disc 500 can flow downward through the filtering groove 523A and the cut-off of the cutting blade 521 in turn, so that the consumable can be dissolved more completely and quickly, and further the undissolved consumable can be effectively prevented from flowing out from the capsule outlet 410, and the brewed beverage is more savory. At this time, the bottom ring surface of the outer ring fixing portion 510 can be fixed on the top surface of the plastic wrap 300 by means of hot-pressing and welding. Of course, the outer ring fixing part 510 may be disposed higher than the inner cutting member 520, and the outer ring fixing part 510 may be fixed to the inner circumferential wall of the capsule housing 400 by means of adhesion or the like.

Specifically, the outer ring filtering portion 523 includes a plurality of filtering fans distributed at intervals along the circumferential direction, each filtering fan is formed with a plurality of filtering grooves 523A, and the connecting rib 530 is connected to the outer circumferential surface of the central cutting portion 522 between adjacent filtering fans, as shown in fig. 11 to 13, so that the fluid flowing out through the filtering grooves 523A of the filtering fans can be distributed uniformly along the circumferential direction, which is beneficial to avoiding the fluid flowing out from the capsule outlet 410 through the cut-out from deviating.

Further, referring to fig. 12, the filter fan is tilted upward with respect to the central cutting portion 522 such that the bottom surface of the filter fan forms an upward slope radially outward, and thus the distance that the inner cutting member 520 moves downward from the initial position to the pressed position can be increased, and the cutting blades 521 can make longer cuts on the fresh food film 300, thereby facilitating smooth and continuous outflow of fluid from the capsule outlet 410.

Specifically, the cutting blade 521 may be disposed on the bottom surface of the central cutting portion 522 in a variety of suitable manners, for example, the cutting blade 521 is ring-shaped and is disposed along the outer edge of the bottom surface of the central cutting portion 522, or the cutting blade 521 includes a plurality of strip-shaped blades disposed on the bottom surface of the central cutting portion 522 and diverging in the radial direction, or the like. To facilitate the cutting blade 521 to spin cut an incision on the plastic wrap 300, referring to fig. 11 to 14, the cutting blade 521 should preferably be circumferentially arranged along the outer edge of the bottom surface of the central cutting portion 522. There may be one or more cutting blades 521, but in order to avoid the beverage flowing out from the capsule outlet 410 from deviating, the cutting blades 521 should preferably be arranged at equal intervals along the outer edge of the bottom surface of the central cutting portion 522.

Referring to fig. 11 and 12, the end of the cutting blade 521 is formed into a sheet-shaped blade, but the end of the cutting blade 521 may also be formed into a saw-toothed blade or the like that facilitates cutting of the wrap 300. Preferably, the axial height of the cutting blade 521 should be set to not less than 1mm and not more than 5 mm. It will be appreciated that the axial height of the cutting blade 521 is preferably within this range, which allows the cutting blade 521 to cut a cut of suitable length on the preservative film 300, which facilitates the beverage to smoothly and continuously flow out of the cut and smoothly and continuously flow into the serving cup of the user.

Preferably, a fluid flow distribution member 800 is further provided at the top of the inner cavity of the capsule, and referring to fig. 26, a beverage extraction cavity is formed between the fluid flow distribution member 800 and the plastic wrap 300, a fluid flow distribution cavity is formed between the fluid flow distribution member 800 and the film 200, and the consumable is contained in the beverage extraction cavity. Wherein the fluid diverter 800 primarily functions to disperse fluid and pressurize the fluid.

Further, with reference to fig. 26, the fluid diversion member 800 includes an outer annular diversion part 810 with diversion holes and a central depression 820 depressed relative to the top annular surface of the outer annular diversion part 810, and is configured such that, when a beverage is brewed, the hollow tube 700 pierces the film 200 to extend into the fluid diversion cavity and to align with the central depression 820 downward, and then the high-pressure fluid from the hollow tube 700 is emitted to the lower concave surface of the central depression 820 and then is uniformly distributed in the fluid diversion cavity after being sputtered by the lower concave surface, so that the pressure difference of the liquid applied to each area of the outer annular diversion part 810 can be effectively reduced, which is beneficial to uniformly pressing each area of the outer annular diversion part 810, and the fluid diversion member 800 can uniformly divert the liquid above the liquid, thereby the liquid leaking downward can uniformly cover the surface of the consumables, further the consumables can be extracted more sufficiently, and the waste of the consumables can be effectively avoided, the prepared beverage is more fragrant and mellow. In addition, the provision of the central undercut 820 also provides an escape space for the hollow tube 700, such that the fluid diverter 800 does not need to be provided too low to compress the height space of the beverage extraction chamber.

The fluid diversion member 800 with the diversion holes increases the hydraulic pressure of the fluid diversion cavity, so that the fluid diversion member 800 deforms and moves downwards, consumables filled in the beverage extraction cavity are extruded downwards, and the inner cutting member 520 is pressed and moves downwards. Of course, instead of the above-mentioned way, the inner cutting member 520 may be driven by other pressurized means, such as hydrostatic drive caused by increasing fluid pressure in the chamber D, or pressurized fluid injected into the chamber D to impact the inner cutting member 520 in the form of a jet, etc., which are not illustrated here.

In the film cutter disc 500 of the third preferred embodiment of the present invention, referring to fig. 15, the film cutter disc 500 comprises an inner cutter 520 at the center portion and an outer ring fixing portion 510 surrounding the inner cutter 520 and fixedly installed, the inner cutter 520 is ring-shaped and has a bottom surface from which cutting blades 521 downwardly protrude, wherein, when the inner cutter 520 is pressed and moved downwardly, the connecting ribs 530 are pressed and deformed or moved and push the inner cutter 520 to circumferentially rotate, so that the cutting blades 521 are moved downwardly and linearly cut the wrap film 300.

In the technical scheme, the film cutting cutter disc 500 is arranged above the preservative film 300, when the inner cutting piece 520 is pressed, pressure below the connecting rib 530 can be applied to the inner cutting piece 520, the connecting rib 530 is enabled to deform or move and drives the inner cutting piece 520 to move downwards and simultaneously rotate in the circumferential direction, at the moment, the cutting blade 521 rotates and moves downwards along with the inner cutting piece 520, the cutting blade 521 arranged on the inner cutting piece 520 further rotates and linearly cuts a long-strip-shaped annular incision on the preservative film 300, and therefore compared with a hole formed by the existing puncture needle member which passively punctures the preservative film 300, the technical scheme can cut the long-strip-shaped annular incision on the preservative film 300 in a unique rotating and linear cutting mode, the formed incision is larger and better meets brewing requirements and water outlet requirements, and therefore drinks formed in the material cavity D can be brewed smoothly and uniformly, Continuously flows out from the preservative film 300 through the strip-shaped notch, so that the beverage drained to the capsule outlet 410 can smoothly and continuously flow into the liquid containing cup body of the user, and the use experience of the user can be greatly improved.

Preferably, the inner cutting member 520 is ring-shaped and has an outer diameter not greater than the inner diameter of the outer ring fixing portion 510, and the inner cutting member 520 is at least partially higher than the outer ring fixing portion 510, referring to fig. 15 and 16, at this time, the bottom ring surface of the outer ring fixing portion 510 can be fixedly mounted on the top surface of the plastic wrap 300 by means of hot welding or the like. Further, the outer ring fixing part 510 may be disposed higher than the inner cutting member 520, and at this time, the outer ring fixing part 510 may be fixed to the inner circumferential wall of the capsule housing 400 by means of adhesion or the like.

In order to make the inner cutting member 520 move downward under pressure, the cutting blade 521 can be driven by the connecting rib 530 to perform rotary cutting on the plastic wrap 300, and a circumferential included angle α using the center of the film cutter disc 500 as a reference is formed between the center of the upper end and the center of the lower end.

Preferably, referring to fig. 15 to 18, the inner cutting member 520 includes a plurality of narrow sectors and a plurality of wide sectors alternately arranged at intervals in the circumferential direction, the upper ends of the coupling ribs 530 are coupled to the narrow sectors, and the cutting blades 521 protrude downward from the bottom surfaces of the wide sectors. Specifically, the connecting rib 530 is connected to the narrow fan, so that when the inner cutter 520 is pressed, the narrow fan also moves downward against the reaction force given by the reinforcing rib, that is, the narrow fan is less likely to move downward than the wide fan. In addition, the force-receiving area of the wide fan is greater than that of the narrow fan, and thus, when the inner cutting member 520 is pressed, the wide fan is more easily moved downward than the narrow fan. In summary, with such an arrangement, when the inner cutting member 520 is pressed, the wide fan located at two sides of the narrow fan in the circumferential direction is pressed to move downward first, and then the narrow fan is dragged to rotate along the lower end of the connecting rib 530 toward the upper end of the connecting rib 530 in the circumferential direction, so that the inner cutting member 520 is pressed to rotate downward. Of course, because the wider fan is subjected to more downward pressure than the narrower fan, disposing the cutting blade 521 on the bottom surface of the wider fan is more beneficial for the cutting blade 521 to spin cut the notch in the fresh food film 300. In order to avoid the beverage flowing out from the capsule outlet 410 from deviating, a plurality of cutting blades 521 should be arranged at equal intervals along the bottom annulus of the inner cutting member 520.

Further, the upper end of the connection rib 530 is connected to the outer annular surface of the narrow fan, and the lower end of the connection rib 530 is connected to the inner annular surface of the annular outer ring fixing portion 510, and referring to fig. 14 and 16, a radial connection line between the center of the upper end and the center of the circle is perpendicular to a connection line between the centers of the upper end and the lower end. Specifically, the inner cutting member 520 includes an initial position where the inner cutting member 520 is higher than the outer ring fixing portion 510 and a pressed position where the inner cutting member 520 is pressed, referring to fig. 10 to 13, and the radial line connecting the center of the upper end and the center of the circle is perpendicular to the line connecting the center of the upper end and the center of the lower end at the pressed position where the inner cutting member 520 and the outer ring fixing portion 510 are in the same horizontal plane. It can be understood that if the angle between the radial connecting line and the central connecting line is less than 90 °, the connecting rib 530 is easily pressed when the inner cutting member 520 is pressed downward, so that the inner cutting member 520 cannot move downward to the downward pressing position; if the included angle between the radial connecting line and the central connecting line is set to be greater than 90 °, the connecting rib 530 is easily bent or even folded when being pressed by the inner cutting member 520, so that the cutting blade 521 cannot cut the plastic wrap 300 by rotary cutting.

In addition, referring to fig. 16 and 18, the end of the cutting blade 521 is formed as a sheet-shaped blade, but the end of the cutting blade 521 may also be formed as a saw-toothed blade or the like that is easier to cut and tear the plastic wrap 300, and the like. Preferably, the axial height of the cutting blade 521 should be set to not less than 1mm and not more than 5 mm. It will be appreciated that the axial height of the cutting blade 521 is preferably within this range, which allows the cutting blade 521 to cut a cut of suitable length on the preservative film 300, which facilitates the beverage to smoothly and continuously flow out of the cut and smoothly and continuously flow into the serving cup of the user.

In order for the coupling ribs 530 to give support to the inner cutting member 520, referring to fig. 15, the cross-sectional area of the coupling ribs 530 should preferably be not less than 0.25mm². Further, the cross-sectional area of the connecting rib 530 should be not more than 0.75mm²Thus, when the inner cutter 520 is pressed and moved downward, the connecting rib 530 is deformed to drive the inner cutter 520 to rotate circumferentially.

Specifically, referring to fig. 15, the top surface of the outer ring fixing portion 510 is provided with at least two turbulence columns 550 arranged at intervals along the circumferential direction, so that when the pressurized fluid is injected into the material cavity D, the pressurized fluid can impact the turbulence columns 550 to form a local turbulence, which is beneficial to better dissolving the consumable, and further makes the brewed beverage more fragrant and mellow. Preferably, set up turbulence column 550 in the radial outside of cutting blade 521, so set up, when the drink flowed into the overflowing chamber from material chamber D through the incision on plastic wrap 300 fast, turbulence column 550 still can carry out the secondary to the consumer that does not dissolve and beat, can avoid effectively because the consumer does not dissolve completely and the bad situation of drink taste appears, is favorable to improving user's use and experiences.

Furthermore, the inner cutting member 520 may be moved downward by a variety of means, such as hydrostatic drive by increasing fluid pressure in the chamber D, or pressurized fluid injected into the chamber D to impinge on the inner cutting member 520 in the form of a jet, etc., although other arrangements are possible and not illustrated herein.

In a membrane cutter disc 500 of a fourth preferred embodiment of the present invention, with reference to fig. 19, the membrane cutter disc 500 comprises an inner cutting member 520, an outer ring fixing portion 510 and connecting ribs 530, the connecting ribs 530 connecting the inner cutting member 520 and the outer ring fixing portion 510, the inner cutting member 520 comprises a central stress plate 524 in the shape of a circular sheet and a plurality of compression deformation plates 525 arranged at intervals in the circumferential direction and extending in the radial direction, the inner ends of the compression deformation plates 525 are connected to the central stress plate 524 and the outer ends are connected to the connecting ribs 530, and cutting blades 521 are protruded downward from the bottom surfaces of the compression deformation plates 525; when the central stress plate 524 is pressed to move downwards, the inner end of the compression deformation plate 525 is driven to move downwards relative to the outer end, so that the cutting blade 521 is driven to move downwards and linearly cut the preservative film 300.

In the technical scheme, the inner end and the outer end of the compression deformation plate 525 are respectively connected with the central stress plate 524 and the connecting rib 530, and the compression deformation plate 525 extends downwards to form the cutting blade 521, so that when the central stress plate 524 is compressed and moves downwards, the inner end of the compression deformation plate 525 can be driven to move downwards relative to the outer end, the cutting blade 521 is driven to move downwards along with the compression deformation plate 525, and then a strip-shaped incision is linearly cut on the preservative film 300, therefore, compared with a hole formed by a traditional puncture needle member through the preservative film 300 passively, the incision formed by linearly cutting the preservative film 300 by the film cutting cutter disc 500 is larger, and further meets the water outlet requirement and brewing requirement, so that the fluid from the material cavity D can smoothly, continuously and uniformly flow out of the strip-shaped incision from the preservative film 300 through the incision, and further, the fluid can smoothly and continuously flow into the liquid containing cup body of a user from the capsule outlet 410, the use experience of the user can be greatly improved.

Wherein, to avoid the beverage flowing out from the capsule outlet 410 from being biased, the plurality of pressure-deformable plates 525 should preferably be arranged at equal intervals along the circumference of the central force-bearing plate 524, so that the cutting blades 521 are arranged at equal intervals along the circumference of the central force-bearing plate 524.

Specifically, the capsule equipped with the film cutter disc 500 is loaded into the beverage machine, and when the beverage machine is in operation, the hollow tube 700 in the beverage machine pierces the coating film 200 of the capsule to extend into the cavity D, and then sprays pressurized fluid toward the central force bearing plate 524 of the film cutter disc 500, and at this time, the central force bearing plate 524 is pressed by the pressurized fluid to move downward, so that the inner end of the pressure bearing deformation plate 525 is driven to move downward relative to the outer end, and the cutting blade 521 is further driven to move downward along with the pressure bearing deformation plate 525 to linearly cut a long-strip-shaped incision on the preservative film 300.

It is preferable that the outer end of the compression-deformable plate 525 is protruded with a connection rib 530 radially outward, and referring to fig. 19, the end of the connection rib 530 is connected to the inner circumference of the outer ring fixing portion 510 obliquely downward. With such an arrangement, the central force-bearing plate 524 can move downward with a small downward pressure, even if the central force-bearing plate 524 moves downward after being pressed; in addition, compared with the film cutting cutter disc 500 without the connecting rib 530, the central stressed plate 524 in the film cutting cutter disc 500 in the technical scheme can move downwards for a longer distance when being subjected to the same downward pressure, that is, the angle of downward movement of the inner end of the pressure deformation plate 525 relative to the outer end can be larger, so that the cutting blade 521 can linearly cut a longer incision on the preservative film 300, and the fluid can smoothly and continuously flow out of the preservative film 300 through the incision. At this time, the outer ring fixing portion 510 of the film cutter disc 500 may be fixed to the top surface of the plastic wrap 300 by means of ironing, welding, or the like. Of course, the ends of the connecting ribs 530 may be arranged to be connected obliquely upward to the inner circumferential edge of the outer ring fixing part 510, and the outer ring fixing part 510 may be fixed to the inner circumferential wall of the capsule housing 400 by means of adhesion or the like.

Specifically, the inner cutting member 520 includes an initial position that is not compressed and a compressed position after being compressed. Wherein, in the initial position, referring to fig. 22, the compression-deformable plate 525 is higher than the outer ring fixing part 510; in the depressed position, the inner end of the compression plate 525 is lower than the outer end of the compression plate 525, and the cutting blade 521 cuts a slit in the fresh film 300, so that the fluid in the chamber D can flow downward into the flow-through chamber through the slit.

Further, referring to fig. 22, the compression deformation plate 525 is flat, the upper surface of the compression deformation plate 525 is higher than the upper ring surface of the outer ring fixing portion 510, and the height difference between the upper surface and the upper ring surface should be not less than 3mm, so that the central stress plate 524 has a sufficient downward moving space, that is, the inner end of the compression deformation plate 525 has a sufficient downward moving angle, which is beneficial to the cutting blade 521 to cut a long-strip-shaped cut on the preservative film 300, and further, the fluid is smoothly and continuously discharged from the capsule outlet 410.

Specifically, the compression deformation plate 525 may be a diamond-shaped plate having a large middle portion and small ends (see fig. 20), may be an elliptical plate, or may be a plate having another shape, which is not illustrated here. In addition, the cutting blade 521 may be provided in one or more number, but in order to prevent the beverage flowing out of the capsule outlet 410 from being biased, referring to fig. 19, the number of the pressure-deformable plates 525 is not less than 3 and not more than 8.

Preferably, a weakened structure with a reduced thickness is provided at the outer end of the compression-deformable plate 525, and/or between the compression-deformable plate 525 and the central force-bearing plate 524, so that the compression-deformable plate 525 can be moved downward more easily by the central force-bearing plate 524.

Further, referring to fig. 19 and 22, the outer end of the compression deformation plate 525 is provided with a structural weakening groove 526 at the top end of the connecting rib 530, so that in the process that the inner end of the compression deformation plate 525 moves downward relative to the outer end, the tensile stress of the fibers at the top end of the connecting rib 530 can be effectively weakened, and the compression deformation plate 525 can move downward more easily. Of course, it is also possible to provide a concave groove at the bottom end of the connecting rib 530 to weaken the compressive stress of the fibers at the bottom end of the connecting rib 530 and also to facilitate the downward movement of the compressively deformed plate 525.

In addition, the inner end of the compression deformation plate 525 is connected to the outer peripheral wall of the central force-receiving plate 524, and a spacing groove 527 recessed from the upper surface is formed between the end surface of the inner end and the wall surface of the outer peripheral wall, as shown in fig. 19 and 20, and/or a groove recessed from the lower surface is formed between the end surface of the inner end and the wall surface of the outer peripheral wall, so that a weakened connection portion with a reduced thickness is formed between the inner end and the central force-receiving plate 524, that is, the compression stress of the top end fibers and/or the tensile stress of the bottom end fibers at the connection end of the compression deformation plate 525 and the central force-receiving plate 524 are weakened, and the compression deformation plate 525 is more easily moved downward.

Specifically, the cross-sectional area of the connecting ribs 530 should be less than the minimum cross-sectional area of the crush plates 525, as seen in FIG. 19, so that when the central stress plate 524 is compressed down, the connecting ribs 530 are more easily deformed by the force, which is more conducive to the inner end of the crush plates 525 moving down after being compressed. Preferably, in order to allow the connecting rib 530 to support the center stress plate 524 and the compression deformation plate 525, etc., the cross-sectional area of the connecting rib 530 should preferably be not less than 0.25mm². Further, the cross-sectional area of the connection rib 530 should be set not more than 0.75mm²In this way, when the central force-bearing plate 524 is pressed downward, the connection rib 530 is easily deformed by force so that the pressure-bearing deformation plate 525 is easily moved downward.

Preferably, in order to allow the pressurized fluid jetted from the hollow tube 700 to fall onto the central force-bearing plate 524 as much as possible so as to avoid losing the force-bearing point, referring to fig. 2 and 19, the central force-bearing plate 524 should be a circular disk having a diameter of not less than 2mm and not more than 8mm, and the central force-bearing plate 524 is concentrically arranged with the outer ring-shaped fixing portion 510.

In addition, referring to fig. 19, turbulence columns 550 should be provided on top surfaces of respective inner and outer ends of the plurality of pressure-deformable plates 525. Specifically, the pressurized fluid from the hollow tube 700 impacts the central stress plate 524 and then splashes around, and further impacts the turbulence column 550 arranged at the inner end of the pressure-deformed plate 525 to form local turbulence, which is beneficial to better dissolving consumables and enables brewed drinks to be more fragrant and mellow; and when the fluid flowed into the overflowing cavity from the material cavity D through the notch on the plastic wrap 300 fast, the turbulence column 550 located at the outer end of the pressed deformation plate 525 can also perform secondary whipping on the undissolved consumables, so that the situation that the taste of the beverage is not good due to complete dissolution of the consumables can be effectively avoided, and the use experience of a user can be improved.

Specifically, the end of the cutting blade 521 may be formed into a sheet-shaped edge (see fig. 21 and 23), and of course, the end of the cutting blade 521 may also be formed into a serrated edge or the like which is more likely to linearly cut the plastic wrap 300, which is not illustrated here.

Preferably, the respective bottom surfaces of the plurality of compression-deformation plates 525 are provided with cutting blades 521 having downward cutting edges, and the cutting blades 521 are strip-shaped blades arranged in the width direction of the compression-deformation plates 525, and referring to fig. 21 and 22, it is possible that the cutting blades 521 are arranged perpendicularly to the centers of the outer end center and the inner end center of the compression-deformation plates 525, or that an included angle between the cutting blades 521 and a line connecting the centers is an acute angle, as long as the cutting blades 521 are arranged in the substantial width direction of the compression-deformation plates 525.

Further, with continued reference to fig. 21 and 22, the minimum distance between the cutting blade 521 and the center of the membrane cutter disc 500 is d1, and the distance between the outer end of the pressure deformation plate 525 and the center of the circle should be d2, which satisfies:

and the axial height of the cutting blade 521 should be set to 1mm to 5 mm. It will be appreciated that the setting parameters of the cutting blade 521 are preferably within the range, which is beneficial to make the cutting blade 521 cut a convenient length of incision on the plastic wrap 300, so as to promote the beverage to smoothly and continuously flow out of the incision and further smoothly and continuously flow into the serving cup of the user.

In addition, referring to fig. 23 and 24, the cutting blade 521 is a bar-shaped blade arranged in the radial direction of the film cutter disc 500. Preferably, referring to fig. 23, the minimum distance between the cutting blade 521 and the inner end of the compression-deformation plate 525 is L1, and the distance between the outer end and the inner end of the compression-deformation plate 525 is L2, satisfying:

specifically, setting the ratio between L1 and L2 too large, i.e., setting the cutting blade 521 too far from the inner end of the compression-deformable plate 525, is not favorable for the cutting blade 521 to cut a long radial slit on the plastic wrap 300, so that the fluid cannot flow out of the slit smoothly and continuously. Further, the axial height of the cutting blade 521 should be set to 1mm to 5 mm. It will be appreciated that the axial height of the cutting blade 521 is preferably within this range, which is beneficial to make the cutting blade 521 cut a convenient length on the plastic wrap 300, so as to promote the drinks to smoothly and continuously pass throughThe slit flows out of the plastic wrap 300 and eventually into the user's liquid cup smoothly and continuously.

Specifically, referring to fig. 9 to 24, the axial height of the cutting blade 521 of the film cutter disc 500 for cutting the plastic wrap 300 is preferably not less than 1mm and not more than 5mm, and therefore, in order to avoid collision interference of the downwardly moving cutting blade 521 with the outer edge filter part 120 of the filter mechanism 100 when the cutting blade 521 of the film cutter disc 500 moves downwardly and cuts the plastic wrap 300, referring to fig. 7, the top surface of the outer edge filter part 120 should be lower than the top surface of the central body part 110 and the height difference therebetween is preferably not more than 5 mm.

The capsule described above may be applied to a beverage machine that may inject pressurized fluid into the capsule by a pressurized fluid injection system. For example, the machine further comprises a hollow tube 700 for piercing the membrane 200 to penetrate into the capsule, through which tube 700 a pressurized fluid is injected into the cavity D to brew the consumable and thus produce a beverage for the user to taste.

It is noted that the capsule in the above embodiments with reference to the drawings is positioned vertically upwards, i.e. the capsule inlet is open upwards at the top, but it is clear that the invention is not limited thereto, the capsule may also be positioned laterally, i.e. the capsule inlet is in the form of a side opening, etc.

In particular, other configurations and functions of the capsule and beverage machine according to embodiments of the present invention are known to those of ordinary skill in the art and are not described herein in order to reduce redundancy.

The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.

It should be noted that, in the above embodiments, the various features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, the present invention does not separately describe various possible combinations.

In addition, any combination of the various embodiments of the present invention can be made, and the same should be considered as the disclosure of the present invention as long as the idea of the present invention is not violated.

Claims

1. A capsule comprising a cover film (200), a preservative film (300) and a capsule housing (400) having a capsule inlet and a capsule outlet (410), the cover film (200) covering the capsule inlet, the preservative film (300) being disposed within the capsule housing (400) and defining with the cover film (200) a material chamber (D) for filling with a consumable, characterized in that the capsule further comprises a film cutting cutter disc (500) disposed above the preservative film (300) and a filtering mechanism (100) disposed below the preservative film (300);

the membrane cutter disc (500) comprises an inner cutting piece (520), an outer ring fixing part (510) and a connecting rib (530) for connecting the inner cutting piece (520) and the outer ring fixing part (510), wherein a cutting blade (521) extends downwards from the bottom surface of the inner cutting piece (520); when the inner cutting piece (520) is pressed to move downwards, the connecting rib (530) is pressed to deform and pushes the inner cutting piece (520) to generate circumferential rotation, so that the cutting blade (521) moves downwards and linearly cuts the preservative film (300) to cut a cut;

The filtering mechanism (100) comprises a central body part (110) and an outer edge filtering part (120) arranged on part or all of the periphery of the central body part (110), wherein the outer edge filtering part (120) is provided with a plurality of filtering hole grooves penetrating from the top surface to the bottom surface.

2. Capsule according to claim 1, wherein the filter means (100) is in the form of a circular sheet, the outer rim filter portion (120) comprises a plurality of radial filter cells (121) circumferentially spaced apart, the radial filter cells (121) having radially outer ends which are open.

3. Capsule according to claim 2, characterized in that the ratio between the radial length of the radial filter cells (121) and the outer diameter of the filter means (100) is not less than 0.05 and not more than 0.25; and/or the presence of a gas in the atmosphere,

the maximum groove width of the radial filter groove (121) is not less than 0.05mm and not more than 2 mm; and/or the presence of a gas in the atmosphere,

the number N of the radial filter cells (121) on the outer edge filter part (120) satisfies the following conditions: n is more than or equal to 20 and less than or equal to 150.

4. A capsule according to any of claims 1 to 3, wherein the top surface of the central body portion (110) is formed as an upwardly arched surface urging fluid on the top surface to flow towards the outer rim filter portion (120).

5. The capsule according to claim 1, wherein the top surface of the central body portion (110) is higher than the top surface of the outer rim filter portion (120) with a height difference of no more than 5 mm.

6. A capsule according to claim 1, further comprising an outlet drainage structure (600) arranged below the preservative film (300) to guide fluid from the incision to the capsule outlet (410), the radially outer side of the outlet drainage structure (600) being provided with a support table (420) arranged in a circumferential direction, the filter mechanism (100) being arranged above the outlet drainage structure (600).

7. The capsule according to claim 6, characterised in that the filtering means (100) are supported on top of the outlet drainage structure (600); alternatively, the filter mechanism (100) is supported on the inner peripheral wall of the capsule housing (400); or, the filtering mechanism (100) is provided with a plurality of supports which extend outwards in the radial direction and downwards to the supporting platform (420) in a protruding way, and the supports are arranged at intervals along the circumferential direction.

8. The capsule according to claim 6, wherein the top surface of the supporting platform (420) is formed as a radially inward descending slope, a filtering cavity (E) is formed between the bottom surface of the outer edge filtering portion (120) and the top surface of the supporting platform (420), and the fluid in the material cavity (D) flows out from the capsule outlet (410) through the cut on the plastic wrap (300), the filtering hole groove, the filtering cavity (E) and the outlet drainage structure (600) in sequence.

9. Capsule according to claim 6, wherein the central body portion (110) has a bottom support platform formed on its periphery projecting downwards; wherein, in the initial state of the central body part (110), the outer peripheral surface of the outer edge filtering part (120) is abutted against the inner peripheral wall of the capsule shell (400), an axial gap is formed between the bottom surface of the bottom support platform and the top surface of the outlet drainage structure (600), and in the pressed state of the central body part (110), the bottom support platform is pressed against the top surface of the outlet drainage structure (600).

10. The capsule according to claim 1, wherein the distance between the outer periphery of the outer rim filter portion (120) and the inner peripheral wall of the capsule housing (400) is not more than 2 mm.

11. The capsule according to claim 1, wherein the cut in the plastic wrap (300) is located directly above the outer edge filter portion (120).

12. The capsule according to claim 1, wherein the upper ends of the connecting ribs (530) are connected to the inner cutting member (520), the lower ends of the connecting ribs (530) are connected to the outer ring fixing portion (510), and a radial line connecting the center of the upper end and the center of the membrane cutter disc (500) is perpendicular to a line connecting the centers of the upper end and the lower end.

13. Capsule according to claim 1, characterized in that the inner cutting member (520) comprises a central cutting portion (522) in the form of a circular sheet and an outer filtering portion (523), the outer filtering portion (523) is provided with a plurality of filtering grooves (523A) distributed at intervals along the circumferential direction and penetrating from the top surface to the bottom surface, and the cutting blade (521) protrudes downwards from the bottom surface of the central cutting portion (522).

14. Capsule according to claim 13, characterized in that the inner cutting member (520) comprises an initial position, uncompressed, in which the inner cutting member (520) is higher than the outer ring fixation portion (510), and a depressed position, depressed, in which the outer ring filter portion (523) overlaps the outer ring fixation portion (510) in the circumferential direction, the fluid above the membrane cutter disc (500) flowing downwards through the filter cells (523A) and the incisions in turn.

15. Capsule according to claim 1, wherein the inner cutting member (520) is ring-shaped and has an outer diameter not greater than the inner diameter of the outer ring fixation portion (510), the inner cutting member (520) being at least partially higher than the outer ring fixation portion (510).

16. Capsule according to claim 15, characterized in that the inner cutting member (520) comprises a plurality of narrow sectors and a plurality of wide sectors arranged circumferentially at alternating intervals, the connecting rib (530) being connected at its upper end to the narrow sectors, the cutting blade (521) projecting downwards from the bottom surface of the wide sectors.

17. The capsule according to claim 1, characterised in that the membrane cutter disc (500) is provided on its top face with a plurality of turbulence columns (550).

18. A beverage machine, characterized in that it comprises a capsule according to any one of claims 1 to 17 and a pressurized fluid injection system for injecting a pressurized fluid into said capsule.