CN215905096U

CN215905096U - Square capsule for dissolving by brewing

Info

Publication number: CN215905096U
Application number: CN202122147380.XU
Authority: CN
Inventors: 唐鸣; 丁阳; 严佳浩; 高宇含
Original assignee: Wuxi Dingjia Hongsi Drinks Technology Co ltd
Current assignee: Wuxi Dingjia Hongsi Drinks Technology Co ltd
Priority date: 2021-09-07
Filing date: 2021-09-07
Publication date: 2022-02-25
Anticipated expiration: 2031-09-07

Abstract

The utility model provides a square capsule for dissolving by brewing, which comprises: the box body is in a cuboid shape or a square shape; the accommodating chamber is divided into at least two accommodating spaces by the at least two first positioning parts and the separating parts matched with the first positioning parts, and the sizes of the at least two accommodating spaces are adjusted by positioning the separating parts at different first positioning parts; one of the accommodating spaces is a first accommodating space for accommodating an accommodating object, and the partition is arranged in a protruding manner towards the outer side of the first accommodating space. According to the square capsule, the setting box body is arranged to be cuboid or square, so that the first positioning part and the matched partition piece are conveniently arranged; at least two first positioning parts are arranged, and the separating piece is fixed on the first positioning parts with the size required by the first accommodating space so as to meet the brewing requirements of the accommodating objects with different filling volumes; further, the partition is provided so as to protrude, whereby the size of the first housing space for housing the housing object can be further increased.

Description

Square capsule for dissolving by brewing

Technical Field

The present invention relates to capsules for use in beverage preparation machines, and more particularly to a square capsule for reconstitution dissolution.

Background

Along with the increasing demand of people for the taste of the beverage, the instant beverage is brewed by using a brewing device such as a milk tea brewing machine, a grain brewing machine and the like, and is increasingly popularized in the market. In many corresponding brewing devices, the portion packages are formed in the form of capsules, in which, for example, the brew is hermetically enclosed. For brewing, the capsule is pierced on opposite sides. On the first side, a liquid (typically hot water) is injected. On the second side, the dissolving liquid is drained from the capsule.

The capsules currently on the market are substantially cup-shaped, in particular a cone rotationally symmetrical about an axis. The cup-shaped capsule generally comprises a cup body, a sealing film (sealing film) sealed above the cup body, and an airtight layer (aluminum foil) sealed at the bottom of the cup body to form an accommodating chamber, wherein brewing substances are accommodated in the accommodating chamber, and a filter disc is fixed at the bottom of the accommodating chamber. The injected liquid enters the accommodating chamber by puncturing the sealing film, the brewed object is brewed to obtain dissolved liquid, the dissolved liquid is filtered and drained by the filter disc, and the filter disc punctures the airtight layer to discharge the dissolved liquid.

The brewing substances are generally milk tea powder, large granular dissolved substances or grains and the like, the volume requirements of the accommodating chambers are different for different brewing substances, and the volume of the accommodating chamber of the existing cup-shaped capsule is fixed, so the filling capacity of different brewing substances is limited. Produce the capsule of multiple not unidimensional from this, lead to the production degree of difficulty increase of extraction equipment (drink machine, selling machine), the structure is complicated, inconvenient use, has also improved manufacturing cost simultaneously, is unfavorable for marketing.

In view of the above, there is a need for an improved structure of cup capsule in the prior art to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to disclose a square capsule for brewing and dissolving, and aims to solve the problem that the filling capacity of a cup-body capsule for brewing substances is limited in the prior art.

To achieve the above object, the present invention provides a square capsule for reconstitution dissolution, comprising:

the box body is cuboid or square and is provided with an accommodating cavity;

the at least two first positioning parts and the separating parts matched with the first positioning parts are arranged in the accommodating cavity, the separating parts are connected with the first positioning parts to divide the accommodating cavity into at least two accommodating spaces, and the separating parts are positioned in different first positioning parts to adjust the sizes of the at least two accommodating spaces;

one of the accommodating spaces is a first accommodating space for accommodating an accommodating object, and the partition is arranged in a protruding manner towards the outer side of the first accommodating space.

As a further improvement of the utility model, the square capsule further comprises a water storage tank which is annularly arranged along the circumferential direction of the accommodating chamber and is communicated with the accommodating chamber.

As a further improvement of the utility model, the box body comprises an outer side wall, an inner side wall annularly arranged on the inner side of the outer side wall and a connecting part connected between the inner side wall and the outer side wall, and the connecting part is connected with the outer side wall and the inner side wall to form the water storage tank.

As a further improvement of the utility model, the water storage tank and the partition are respectively provided with a flow guide structure so as to guide the liquid injected into the box body to the first accommodating space through the water storage tank and the partition.

As a further improvement of the present invention, a first flow guiding structure is disposed above the accommodating chamber on the water storage tank, and the first flow guiding structure is a plurality of grooves disposed on an upper end surface of an inner side wall for guiding the liquid injected into the water storage tank to the first accommodating space.

As a further improvement of the present invention, a second flow guiding structure is disposed on the partition, the second flow guiding structure is at least one through hole disposed at the bottom of the partition, and the second flow guiding structure communicates with the adjacent receiving space.

As a further improvement of the utility model, the water storage tank extends along the circumferential direction of the box body, and a cut-off part is arranged in the water storage tank and used for cutting off the injected liquid in three directions.

As a further improvement of the utility model, the box body is provided with an opening, and the square capsule also comprises a sealing film for shielding the opening, an airtight layer sealed at the bottom of the box body and a water filtering disc arranged below the airtight layer.

As a further improvement of the utility model, the upper part of the water filtering disc is provided with a puncture structure for bearing pressure and puncturing the airtight layer, and the bottom of the water filtering disc is provided with a conical drainage structure.

As a further improvement of the utility model, the bottom of the box body is provided with a second positioning part, and the second positioning part comprises an annular convex rib which is convexly arranged from the bottom of the box body to the accommodating cavity and is used for arranging the water filtering disc and the air-tight layer.

Compared with the prior art, the utility model has the beneficial effects that:

according to the square capsule for brewing and dissolving, the box body is set to be cuboid or square, so that the first positioning part and the matched partition piece are conveniently arranged; the at least two first positioning parts are arranged, and the separating part is fixed on the first positioning parts with the size of the volume required by the first accommodating space, so that the brewing requirements of the accommodating objects with different filling capacities are met. And, through set up the separator in the accommodation chamber and to protruding the establishing to the outside of first accommodation space to further increase the size of the first accommodation space who is used for accommodating the thing of holding.

Drawings

FIG. 1 is a schematic perspective view of one embodiment of a square capsule cartridge provided by the present invention;

FIG. 2 is a perspective view of FIG. 1 at another angle;

FIG. 3 is a front view of the square capsule cartridge of FIG. 1;

FIG. 4 is a cross-sectional view taken along line A-A of FIG. 3;

FIG. 5 is a schematic view of another embodiment of a square capsule cartridge body according to the present invention;

FIG. 6 is a schematic view of one embodiment of a square capsule provided by the present invention;

figure 7 is a front view of the square capsule of figure 6.

Fig. 8 is a schematic perspective view of a water filtering tray provided in the utility model;

fig. 9 is a perspective view of the water filter tray of fig. 8 from another angle.

Detailed Description

The present invention is described in detail with reference to the embodiments shown in the drawings, but it should be understood that these embodiments are not intended to limit the present invention, and those skilled in the art should understand that functional, methodological, or structural equivalents or substitutions made by these embodiments are within the scope of the present invention.

It will be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," "positive," "negative," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing and simplifying the description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be considered as limiting the present disclosure.

Example 1

Referring to fig. 1 to 5, the present embodiment provides a square capsule box, and the box 10 is in the shape of a rectangle or a square. The box body 10 is provided with an accommodating chamber 100, a water storage tank 120 annularly arranged in the box body 10 and positioned above the accommodating chamber 100, and a first flow guide structure 130 arranged in the water storage tank 120 and communicating the water storage tank 120 and the accommodating chamber 100. Because the box body 10 is set to be cuboid or square, the water storage groove 120 in the box body 10 surrounds along the circumference of the rectangle or square, and the first diversion structure 130 is arranged on the water storage groove 120, so that the liquid injected into the box body 10 is evenly and orderly guided to the accommodating chamber 100 from the water storage groove 120 along the edge of the rectangle or square, and the control of the direction and the speed of the injected liquid is improved.

Secondly, the case 10 is formed in a rectangular parallelepiped shape or a square shape, and has a significant improvement in the packing property. The square capsules packed with the packet 10 can be arranged in rows and stacked to obtain a stack substantially free of gaps.

In the present embodiment, the box 10 has a bottom wall 11, an outer sidewall 12 connected to the bottom wall 11, an inner sidewall 13 annularly disposed inside the outer sidewall 12, a connecting portion 14 connected between the inner sidewall 13 and the outer sidewall 12, and an opening 110 annularly formed by the inner sidewall 13. The upper surface of the outer sidewall 12 is further provided with a sealing portion 1211 extending horizontally outwards for bearing and heat sealing and fixing the sealing film. In one embodiment, the inner side wall 13 is inclined so as to weld water diversion membranes of different depths when the box 10 is used for manufacturing square capsules for extraction type substances, for example, the inner side wall 13 is inclined inwards from the side of the opening 110 to the side of the bottom wall 11.

Specifically, referring to fig. 1, 3 and 4, the connection portion 14 is annularly disposed along a circumferential direction of the case 10 and is transversely connected between the inner sidewall 13 and the outer sidewall 12, thereby forming the reservoir 120. A closure 15 is provided in the reservoir 120 to close off the flow of liquid into the reservoir 120 in three directions. For example, the box 10 is rectangular, and the reservoir 120 is rectangular and annular. The long sides or the wide sides of the rectangles are used as a groove-shaped unit, the water storage tank 120 comprises a first groove-shaped unit 121 and a third groove-shaped unit 123 which are positioned in the length direction, and a second groove-shaped unit 122 and a fourth groove-shaped unit 124 which are positioned in the width direction, and the first groove-shaped unit 121, the second groove-shaped unit 122, the third groove-shaped unit 123 and the fourth groove-shaped unit 124 are sequentially connected to form the water storage tank 120. The joint of the first groove-shaped unit 121 and the second groove-shaped unit 122 is preset as a water injection part 17, and a cut-off part 15 is arranged on one side of the first groove-shaped unit 121 and the third groove-shaped unit 123 close to the fourth groove-shaped unit 124. When the liquid is injected into the reservoir 120 from the water injection part 17, the liquid flows to the first tank type unit 121, the second tank type unit 122 and the third tank type unit 123, and is intercepted at the ends of the second tank type unit 122 and the third tank type unit 123 through the interception part 15, so that the liquid injected into the reservoir 120 can be intercepted in three directions of the front side, the right side and the rear side. The liquid injected into the reservoir 120 is intercepted in the three directions of the front side, the right side and the rear side of the box body 10 by the intercepting part 15, and then is directly guided to the accommodating chamber 100 from the reservoir 120 in the three directions of the front side, the right side and the rear side of the box body 10, so that the effective utilization rate of the liquid injected into the reservoir 120 is improved.

Referring to fig. 1 and 3, in the present embodiment, the first diversion structure 130 includes a plurality of grooves, and the plurality of grooves are respectively disposed in three directions of the water storage tank 120 and communicate with the water storage tank 120 and the accommodating chamber 100 to divert the liquid injected into the water storage tank 120 to the accommodating chamber 100. The sectional area of the single groove of the first diversion structure 130 is much smaller than the length of the reservoir 120 in the single-side direction, and the impact force of the water flow on the accommodating chamber 100 can be greatly improved by diversion of the groove. For example, a plurality of first grooves 131 are formed in the upper end surface of the inner wall 13 at the first groove-shaped unit 121 and the third groove-shaped unit 123, respectively, a plurality of second grooves 132 are formed in the upper end surface of the inner wall 13 at the water injection portion 17, the liquid injected into the water storage tank 120 is guided into the accommodating chamber 100 from the front side and the rear side of the box body 10 through the first grooves 131, and the liquid injected into the water storage tank 120 is guided into the accommodating chamber from the front right side of the box body 10 through the second grooves 132. As a reasonable variation of this embodiment, the second groove 132 may also be opened in the middle of the second groove unit 122 to guide the liquid injected into the reservoir 120 from the right side of the box body 10 into the accommodating chamber 100. Or at least two second grooves 132 may be simultaneously formed in the middle of the second groove-type unit 122 or the connection with the first groove-type unit 122 or the third groove-type unit 123, so as to guide the liquid injected into the reservoir 120 into the accommodating chamber 100 from at least three directions of the box body 10.

Referring to fig. 1 and 3, in the present embodiment, the corners of the box body 10 are all in an arc shape as a transition, that is, the joints of the first, second, third and

fourth tank units

121, 122, 123 and 124 are all in an arc shape, so that the liquid injected into the reservoir 120 can smoothly flow.

As shown in fig. 1 and 5, the accommodating chamber 100 is provided with at least one first positioning portion 16 for positioning the partition 20 to divide the accommodating chamber 100 into at least two accommodating spaces. For example, a set of first positioning portions 16 is provided on opposite sides of the inner wall 13 in the longitudinal direction, and the partition 20 is vertically connected to the first positioning portions 16 to divide the accommodating chamber 100 into an accommodating chamber 101 on the left side and a water storage chamber 102 on the right side. Further, the accommodating cavity 101 is used for accommodating objects; the water storage cavity 102 is used for distributing and temporarily storing the liquid injected into the water storage tank 120, and then the liquid is secondarily guided to the accommodating cavity 101 through the partition member 20. In one embodiment, the first positioning portion 16 is configured as a slot, the separating member 20 is configured as a plate-shaped structure, the plate-shaped structure is clamped in the slot, and the connection between the separating member 20 and the first positioning portion 16 is completed, so as to divide the accommodating chamber 100 into two accommodating spaces.

In the present embodiment, at least two first positioning portions 16 are provided, and the partition 20 is positioned at different first positioning portions 16 to adjust the size of the accommodating space. For example, two sets of first positioning portions (the first positioning portion 16 and the first positioning portion 16') are provided on opposite sides of the inner wall 13 in the longitudinal direction, the first positioning portion 16' and the first positioning portion 16 are provided in parallel, and the first positioning portion 16' is positioned on the right side of the first positioning portion 16. When the spacer 20 is provided at the first positioning portion 16', the volume of the housing chamber 101 for the housing object can be increased compared to when the spacer 20 is provided at the first positioning portion 16'. The first positioning portions 16 with different gears are arranged, the volume required by the accommodating cavity 101 is calculated according to the volume of the substance to be brewed or the substance to be extracted, and the partition 20 is fixed to the corresponding first positioning portion 16 which can meet the volume requirement of the accommodating cavity 101. Realized offering a mould to box body 10, alright in order to satisfy the demand of multiple appearance thing and different filling volume.

As shown in fig. 1, 2 and 5, the bottom wall 11 of the box 10 is provided with a second positioning portion 18 for disposing the water filtering tray 30 and the air-tight layer 40. In this embodiment, the second positioning portion 18 is disposed in the accommodating cavity 101, and includes an annular rib 181 protruding from the bottom wall 11 to the accommodating cavity 101, the inner side of the annular rib 181 is used for welding the draining disk 30, and the upper surface of the annular rib 181 is used for fixing the air-tight layer 40 by heat sealing. The annular rib 181 is provided with a bottom of the accommodating cavity 101 protruding upwards, so that the water flow in the capsule has an upward movement converging process, thereby prolonging the stirring time and improving the stirring force.

The present embodiment provides a square capsule box for preparing a capsule suitable for an extraction device, and a substance to be infused or an extract is placed in the box 10. The box body 10 is of a cuboid or square structure, the annular water storage tank is arranged, the first flow guide structure is arranged on the water storage tank, liquid injected into the box body is guided to the accommodating cavity in the box body along the preset direction by the water storage tank, water flow is guided in order, and therefore the stability of the water flow is improved, and the extraction and flavor stability of the extract are improved. And under the condition of improving the extraction of the extract and the flavor stability, the cost can be further reduced by optimizing the containing amount of the extract.

Example 2

Referring to fig. 1, 6 and 7, the present embodiment provides a square capsule 200a suitable for brewing-type contents. The square capsule 10a includes the case 10 provided in embodiment 1, a partition 20a disposed in the case 10, a sealing film 60 covering an opening 110 of the case 10, an airtight layer 40 sealed at the bottom of the case 10, a water filter tray 30 disposed below the airtight layer 40, and a container 50a accommodated in an accommodating chamber 101a between the sealing film 60 and the airtight layer 40.

In this embodiment, the sealing film 60 is fixed to the sealing portion 1211 on the upper surface of the outer side wall 12 by heat sealing. The sealing membrane 60 is fixed by heat sealing to prevent the bursting of the square capsule 10a during brewing.

In the present embodiment, the separator 20a has a plate-like structure, and the middle portion of the separator 20a protrudes toward one side of the separator 20a, and for example, the separator 20a may have a plate-like shape in a zigzag. The partition 20a is vertically disposed in the accommodating chamber 100, for example, the partition 20a is vertically clamped to the first positioning portion 16' to divide the accommodating chamber 100 into an accommodating cavity 101a and a water storage cavity 102 a. The middle of the partition 20a protrudes to the right of the case 10, thereby further increasing the size of the receiving cavity 101 a. Since the brewing-type contents require a larger receiving cavity 101a than the extraction-type contents, such a partitioning member 20a is more suitable for a square capsule of brewing-type contents. In this embodiment, the bottom of the partition 20a is further provided with a second flow guiding structure 21a for guiding the flow from the bottom of the side of the receiving cavity 101a to the receiving cavity 101 a. In an embodiment, the second diversion structure 21a is a plurality of through holes penetrating through the left and right sides of the second diversion structure 21, and the through holes communicate the accommodating cavity 101a and the water storage cavity 102 a. The aperture of the through-hole is much smaller than the longitudinal sectional area of the partition 20a to promote the impact force of the water flow. In a preferred embodiment, the water outlet directions of the adjacent through holes are preferably arranged in a staggered manner, so that irregular turbulence is formed in the capsule, and the stirring and brewing effects are improved.

In the present embodiment, the partition 20a divides the accommodating chamber 100 into an accommodating chamber 101a on the left side and a water storage chamber 102a on the right side. The accommodating cavity 101a is used for accommodating the accommodating object 50 a; the water storage cavity 102a is used for guiding the liquid part in the water storage tank 120 into the water storage cavity 102a, and then the liquid part is guided to the accommodating cavity 101a through the second flow guiding structure 21a on the partition part 20a for the second time.

In use, liquid (typically hot water at high temperature and pressure) is injected into the reservoir 120 by piercing the sealing membrane 60 through the water inlet spike of the beverage machine at the water injection portion 17. The liquid in the reservoir 120 is guided into the receiving cavity 101a from the front side and the rear side of the box 10 through the first groove 131, and meanwhile, the liquid injected into the reservoir 120 is guided into the reservoir 10a from the right front side of the box 10 through the second groove 132, and then guided into the receiving cavity 101a from the reservoir 10a through the second guiding structure 21 a. Namely, the liquid enters the containing cavity 101a from the three directions of the front upper side, the rear upper side and the right bottom of the containing cavity 101a, the convection current is utilized to form a mixed flow state, the stirring kinetic energy is improved, the solubility of the brewing containing object 50a is improved, the problem of split brewing that the brewing containing object is difficult to dissolve is solved, and the brewing effect and the brewing taste are improved.

As shown in fig. 8 and 9, the present embodiment further provides a water filtering disc 30, wherein the center of the water filtering disc 30 protrudes upwards to form a flow guide cylinder 31, a first channel 311 for water to pass through the water filtering disc 30 downwards is arranged in the flow guide cylinder 31, and the airtight layer 40 completely covers the upper end surface of the flow guide cylinder 31 to completely shield the first channel 311. The water filtering disc 30 further comprises a puncturing structure 33 fixed in the middle of the guide cylinder part 31, the upper end surface of the puncturing structure 33 is used for bearing pressure and puncturing the airtight layer 40, the lower end of the puncturing structure 33 protrudes out of the lower end surface of the water filtering disc 30, and a conical drainage structure 312 is further arranged at the bottom of the puncturing structure 33 to realize water flow gathering and buffering.

The continuous water flow enters the accommodating cavity 101a to complete water storage in the accommodating cavity 101a, so that air is compressed to increase the pressure in the accommodating cavity 101a, the air-tight layer 40 is pressed downwards, the puncturing structure 33 arranged at the upper part of the water filtering disc 30 punctures the air-tight layer 40, and the brewing liquid in the accommodating cavity 101a passes through the air-tight layer 40 and is stably and slowly discharged through the first channel 311 and the drainage structure 312 in the water filtering disc 30.

The square capsule 200a provided by the embodiment is suitable for preparing brewing substances such as grains and large particles. The box body 10 is of a cuboid or square structure, the annular water storage tank 120 is arranged, the first flow guide structure 131 is arranged on the water storage tank 120, the partition 20a with the second flow guide structure 21a is arranged at the bottom, so that liquid injected into the box body 10 is guided into the accommodating cavity 101a by the water storage tank 120 and the partition 20a along the three directions of the front side upper part, the rear side upper part and the right side bottom part, water flow is guided orderly, a mixed flow state is formed by the opposite water flow, stirring kinetic energy is improved, the dissolubility of the brewing accommodating object 50a is improved, and the brewing effect and the brewing taste are improved.

Moreover, by providing the first positioning portions 16 'with different gears, the required volume of the receiving cavity 101a is calculated according to the capacity of the brewing type container 50a, and the separating member 20a is fixed to the corresponding first positioning portion 16' which can meet the required volume of the receiving cavity 101 a. The mold is arranged on the box body 10, so that the requirements of various brewing type containing objects 50a and different filling amounts can be met.

The square capsule 200a provided by the embodiment can flexibly adjust the capacity of the capsule, realize the improvement of industrial automatic production and improve the production efficiency. Moreover, the appearance of the capsule can be unified, the capsule can be conveniently assembled in brewing equipment such as a beverage machine and a vending machine, various brewing equipment does not need to be produced, the practicability is improved, and the use difficulty is reduced. In addition, the variety of taste can be increased, the ingredients of the coffee powder or the brewing powder with the same weight can be selected in a plurality of ways, and the selection of polysaccharide, normal sugar and little sugar is realized.

The above-listed detailed description is only a specific description of a possible embodiment of the present invention, and they are not intended to limit the scope of the present invention, and equivalent embodiments or modifications made without departing from the technical spirit of the present invention should be included in the scope of the present invention.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A square capsule for reconstitution dissolution comprising:

the box body is cuboid or square and is provided with an accommodating cavity;

the at least two first positioning parts and the separating parts matched with the first positioning parts are arranged in the accommodating cavity, the separating parts are connected with the first positioning parts to divide the accommodating cavity into at least two accommodating spaces, and the separating parts are positioned in different first positioning parts to adjust the sizes of the at least two accommodating spaces; one of the accommodating spaces is a first accommodating space for accommodating an accommodating object, and the partition is arranged in a protruding manner towards the outer side of the first accommodating space.

2. The square capsule for reconstitution dissolution according to claim 1, further comprising a reservoir annularly disposed along a circumference of the containment chamber and in communication with the containment chamber.

3. The square capsule of claim 2, wherein the cartridge comprises an outer wall, an inner wall surrounding the outer wall, and a connecting portion connected between the inner wall and the outer wall, wherein the connecting portion is connected to the outer wall and the inner wall to form the reservoir.

4. The square capsule of claim 3, wherein the reservoir and the partition are provided with a flow guide structure to guide the liquid injected into the capsule to the first receiving space through the reservoir and the partition.

5. The square capsule of claim 4, wherein the reservoir is provided with a first flow guide structure above the chamber, the first flow guide structure is a plurality of grooves formed on the upper end surface of the inner sidewall for guiding the liquid injected into the reservoir to the first receiving space.

6. The square capsule of claim 4, wherein the partition is provided with a second flow guide structure, the second flow guide structure is at least one through hole formed in the bottom of the partition, and the second flow guide structure is communicated with the adjacent accommodating space.

7. The square capsule of claim 2, wherein the reservoir extends circumferentially of the body, and wherein a closure is provided in the reservoir to close off the injected liquid in three directions.

8. The square capsule according to claim 1, wherein the box has an opening, and the square capsule further comprises a sealing film covering the opening, an airtight layer sealed at the bottom of the box, and a water filtering disc disposed below the airtight layer.

9. The square capsule of claim 8, wherein the upper part of the water filtering disc is provided with a puncture structure for bearing pressure and puncturing the airtight layer, and the bottom of the water filtering disc is provided with a conical drainage structure.

10. The square capsule of claim 9, wherein the bottom of the box body is provided with a second positioning portion, and the second positioning portion comprises an annular rib protruding from the bottom of the box body to the accommodating chamber for arranging the water filtering disc and the air-tight layer.