CN109757983B - Drainage system of portable coffee machine - Google Patents

Drainage system of portable coffee machine Download PDF

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Publication number
CN109757983B
CN109757983B CN201910251130.5A CN201910251130A CN109757983B CN 109757983 B CN109757983 B CN 109757983B CN 201910251130 A CN201910251130 A CN 201910251130A CN 109757983 B CN109757983 B CN 109757983B
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China
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water
coffee
drainage
channel
hole
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CN109757983A (en
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蔡建铭
李登科
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Ningbo Fangke Electric Co ltd
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Ningbo Fangke Electric Co ltd
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Abstract

The invention provides a drainage system of a portable coffee machine, which adopts a unique tower type supporting rod and a separation seat to replace the existing structure of multi-section pipe joint connection through brand new design of the drainage system, realizes the drainage function of water, is simpler and more reasonable in structure, is more stable and reliable in connection, can withstand the impact force generated by falling, reduces the number of parts, reduces the occupation of space, can be used in the portable coffee machine with smaller size, effectively reduces the cost of raw materials, is more convenient to assemble and disassemble, greatly improves the assembly and production efficiency, and is more convenient to maintain and replace in the later period.

Description

Drainage system of portable coffee machine
Technical Field
The invention relates to a portable coffee machine, in particular to a water draining system of the portable coffee machine.
Background
Coffee is one of the most popular beverages in the human society, people pursue the quality of coffee and the idea of enjoying coffee, the invention design of coffee tools and vessels is continuously renovated, at present, the coffee vessels (such as coffee pots, coffee machines and the like) popular in the market have various types, and the portable coffee machines are popular with consumers due to the small structure and convenient carrying.
The existing coffee machine is used for boiling coffee at high temperature and high pressure to shorten the time, but the type of the coffee machine is not compact enough, the coffee machine is inconvenient to carry when traveling, and the coffee machine is always in the form pursued by coffee lovers when being carried out like a charger. For this reason, smart people have produced portable coffee machines.
The earliest portable coffee machine appearing in the field of vision of people is to add coffee powder and boiled water respectively with bottle upper and lower both ends, need not the power supply, rely on the pressure that semi-automatic piston produced to extrude the boiled water in the coffee filter to extract espresso coffee, the user is according to the number of times control drink volume of pressing the piston. This manual pressing requires a certain amount of force and is not operationally difficult for adult men, but is not friendly for women and young users, so that portable coffee machines have been developed in which the manual piston means is replaced by electric power means.
However, such an electric structure is also disadvantageous in that the water outlet of the water pump assembly is biased to be close to the outer wall due to the small size and structure of the starter and the water pump assembly and the internal installation size of the portable coffee machine, but the water inlet of the coffee brewing base body in which the coffee pad or the coffee powder or the coffee capsule is placed is generally located at the center position, so as to achieve a more uniform and better brewing effect. Thus, the water from the water pump to the coffee brewing base is required to be drained. The existing drainage structure generally leads water out of a water pump through a soft and hard pipe arranged in the vertical direction, and then conducts drainage between the soft and hard pipe and a coffee brewing seat body through a plurality of hard pipe joints, specifically, a structure which is approximately vertical, transverse and vertical needs to be formed, and the water in the vertical soft and hard pipe is led to the center from one side and then led to the coffee brewing seat body downwards. Therefore, the existing sewer structure at least needs a long vertical soft and hard pipe, two small elbow joints and a small transverse straight pipe, and needs sealing treatment between the two pipes, thus being complex and having higher cost; and because the installation space is less, spare part is more, and the assembly is got up fairly inconveniently, leads to production efficiency lower, and the later stage appears that the problem is maintained very inconvenient.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides a drainage system of a portable coffee machine.
The technical scheme for solving the technical problems is as follows: the utility model provides a portable coffee machine's drainage system, this drainage system includes from top to bottom sets gradually drinking cup, coffee machine main part and coffee brewing pedestal, the coffee machine main part in be equipped with water pump assembly, and inlet channel and play water channel, the upper end and the drinking cup intercommunication of inlet channel, the lower extreme and the water inlet of water pump assembly of inlet channel communicate, coffee brewing pedestal in be equipped with the holding chamber that is used for making coffee, the upper end of play water channel with the delivery port of water pump assembly communicates, the lower extreme of play water channel with holding chamber communicate, coffee brewing pedestal in still be equipped with the coffee outflow passageway that holds the chamber and be linked together, play water channel include tower branch, and be located the separation seat between coffee machine main part and the coffee brewing pedestal, the upper end and the delivery port of water pump assembly of tower branch communicate, the lower extreme and the separation seat of tower branch are fixed, coffee brewing pedestal and detachable connection;
a drainage channel is formed in the tower type supporting rod, a first drainage channel is formed in the bottom of the tower type supporting rod, a second drainage channel is formed in the upper end of the separation seat, the first drainage channel is in butt joint with the second drainage channel to form a drainage cavity, the drainage channel is communicated with the first drainage channel, a first drainage hole penetrating through the separation seat is formed in the second drainage channel, the first drainage hole and the drainage channel are arranged in a staggered mode, and the first drainage hole is closer to the center of the accommodating cavity than the drainage channel;
the coffee brewing seat comprises a coffee accommodating cup for accommodating coffee bags or coffee powder or coffee capsules and a coffee cup for accommodating coffee after brewing, wherein the accommodating cavity is positioned in the coffee accommodating cup, a coffee outflow channel is communicated with the accommodating cavity and the coffee cup, a second water draining hole communicated with the accommodating cavity is formed in the center of the upper end of the coffee accommodating cup, a third drainage groove is formed in the lower end of the separation seat, the first water draining hole is communicated with the third drainage groove, a sealing piece is further arranged, the sealing piece completely covers the third drainage groove, a through hole is further formed in the sealing piece, the through hole is communicated with the third drainage groove and the second water draining hole, and the through hole and the first water draining hole are arranged in a staggered mode.
Preferably, a circle of clamping groove is formed in the outer wall of the upper portion of the tower-type supporting rod, a slot is formed in the water outlet of the water pump assembly, and the water pump assembly further comprises a clamp spring, and after the upper end of the tower-type supporting rod is inserted into the water outlet of the water pump assembly, the clamp spring is inserted into the clamping groove from the slot and clamped in the clamping groove;
the lower end of the tower type supporting rod is fixed with the separation seat through a screw, and the joint of the tower type supporting rod and the separation seat is coated with sealant.
Preferably, the lower end of the separation seat is provided with a water blocking ring, the third drainage groove is arranged in the water blocking ring, the sealing piece is a sealing gasket, the size of the sealing gasket is matched with that of the water blocking ring, the outer wall of the sealing gasket is tightly attached to the inner wall of the water blocking ring, and the sealing gasket is also abutted to the lower end face of the separation seat.
Preferably, the groove wall of the third drainage groove protrudes downwards from the lower end face of the separation seat, a groove matched with the third drainage groove is formed in the sealing piece, and the groove wall of the third drainage groove is embedded into the groove.
Preferably, the through hole is located at the center of the sealing member and is opposite to the second sewer hole.
Preferably, a plurality of reinforcing ribs are arranged on the outer wall of the tower-type supporting rod.
Preferably, the lower end surface of the separation seat is provided with a limit ring in a downward protruding mode, the diameter of the limit ring is larger than that of the water retaining ring, a first sealing ring is arranged between the limit ring and the water retaining ring, a circle of positioning ribs are arranged at the upper end of the coffee accommodating cup in a protruding mode, and the positioning ribs are clamped between the limit ring and the water retaining ring and are in butt joint with the first sealing ring.
Preferably, a boss is arranged at the upper end of the coffee accommodating cup, the second water drain hole is positioned at the center of the boss, and the boss is bowl-shaped.
Preferably, the diameter of the boss is larger than the diameter of the through hole, and the diameter of the through hole is larger than the diameter of the second sewer hole.
Preferably, a second sealing ring is arranged between the tower-type support rod and the water outlet of the water pump assembly, and a third sealing ring is arranged between the first drainage groove and the second drainage groove.
When the coffee brewing device is used, hot water stored in the water cup body in advance is directly pumped into the accommodating cavity by the water pump assembly, so that coffee can be brewed, the operation is very simple, the water pressure of the hot water after passing through the water pump assembly can reach 18bar, and the requirement of a user on the water pressure is completely met.
The invention has the beneficial effects that: through the brand-new design to the drainage system, the structure that has adopted unique tower branch and separation seat to replace current multisection coupling to connect has realized the drainage function of water, structurally simpler reasonable, connect more reliable and stable, can withstand the impact force that falls the production, reduced spare part quantity, reduced the occupation in space, can use at the portable coffee machine of smaller size, effectively reduce raw materials cost, it is more convenient on the dismouting, promote assembly and production efficiency greatly to and later maintenance change is also more convenient.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is an exploded view of the present invention.
Fig. 3 is an axial cross-sectional view of the present invention.
Fig. 4 is a schematic view of the structure of the inside of the coffee maker body.
Fig. 5 is an exploded view of the structure of the tower struts and diaphragm pump body.
Fig. 6 is a schematic structural view of the partition seat.
Fig. 7 is another structural schematic diagram of the partition seat.
Fig. 8 is a schematic structural view of the seal.
Fig. 9 is a schematic view of the structure after the seal is mounted to the partition seat.
Fig. 10 is a schematic view of the structure of the coffee containing cup.
Detailed Description
The invention is described in further detail below with reference to the drawings and the detailed description.
Referring to fig. 1 to 10, a water draining system of a portable coffee machine comprises a water cup 1, a coffee machine main body 2 and a coffee brewing seat 3 which are sequentially arranged from top to bottom, wherein a water pump assembly 4, a water inlet channel 5 and a water outlet channel are arranged in the coffee machine main body 2, the upper end of the water inlet channel 5 is communicated with the water cup 1, the lower end of the water inlet channel 5 is communicated with a water inlet 11 of the water pump assembly 4, a containing cavity 6 for brewing coffee is arranged in the coffee brewing seat 3, the upper end of the water outlet channel is communicated with a water outlet 10 of the water pump assembly 4, the lower end of the water outlet channel is communicated with the containing cavity 6, a coffee outflow channel 7 communicated with the containing cavity 6 is further arranged in the coffee brewing seat 3, the water outlet channel comprises a tower-type strut 8 and a separation seat 9 positioned between the coffee brewing seat 3 and the coffee machine main body 2, the upper end of the tower-type strut 8 is communicated with the water outlet 10 of the water pump assembly, and the lower end of the coffee brewing seat 9 is fixedly connected with the coffee brewing seat 9;
a water draining channel 12 is formed in the tower type supporting rod 8, a first drainage channel 13 is formed in the bottom of the tower type supporting rod 8, a second drainage channel 14 is formed in the upper end of the separation seat 9, the first drainage channel 13 is in butt joint with the second drainage channel 14 to form a drainage cavity 15, the water draining channel 12 is communicated with the first drainage channel 13, a first water draining hole 16 penetrating through the separation seat 9 is formed in the second drainage channel 14, the first water draining hole 16 and the water draining channel 12 are arranged in a staggered mode, and the first water draining hole 16 is closer to the center of the accommodating cavity 6 than the water draining channel 12;
the coffee brewing seat body 3 comprises a coffee accommodating cup 17 for accommodating coffee bags or coffee powder or coffee capsules and a coffee cup 18 for accommodating coffee after brewing, the accommodating cavity 6 is positioned in the coffee accommodating cup 17, the coffee outflow channel 7 is communicated with the accommodating cavity 6 and the coffee cup 18, a second drainage hole 19 communicated with the accommodating cavity 6 is formed in the center of the upper end of the coffee accommodating cup 17, a third drainage groove 20 is formed in the lower end of the separation seat 9, the first drainage hole 16 is communicated with the third drainage groove 20, a sealing piece 21 is further included, the sealing piece 21 completely covers the third drainage groove 20, a through hole 22 is further formed in the sealing piece 21, the through hole 22 is communicated with the third drainage groove 20 and the second drainage hole 19, and the through hole 22 and the first drainage hole 16 are arranged in a staggered mode.
In this embodiment, the water pump assembly 4 includes a diaphragm pump body 23, a motor 24 driving the diaphragm pump body 23, a power supply system 25 supplying power to the motor 24, and a switch 26 controlling the motor 24 to operate, the diaphragm pump body 23 is provided with the water inlet 11 and the water outlet 10, the switch 26 is embedded on the coffee machine main body 2, the motor 24 can be started by pressing the switch 26, the motor 24 drives the diaphragm pump body 23 to pump hot water from the water cup 1 into the coffee brewing seat 3, the power supply system 25 is preferably a battery pack composed of three 18650 type batteries, which directly supplies power to the motor 24, can be directly charged through a charging socket or can be detached to be replaced by a battery pack with continuous voyage, and the detached battery pack is separately charged, so that long-time uninterrupted use can be realized.
In this embodiment, a circle of clamping groove 27 is formed on the outer wall of the upper portion of the tower-type supporting rod 8, a slot 28 is formed at the water outlet 10 of the water pump assembly 4, and a clamping spring 29 is further included, wherein when the upper end of the tower-type supporting rod 8 is inserted into the water outlet 10 of the water pump assembly 4, the clamping spring 29 is inserted into and clamped in the clamping groove 27 from the slot 28; the lower end of the tower type supporting rod 8 is fixed with the separation seat 9 through a screw, and the joint of the tower type supporting rod 8 and the separation seat 9 is coated with sealant. The embodiment provides a connection fixed knot of tower branch 8 upper and lower extreme constructs, and it is all comparatively convenient to dismantle, and the structure is comparatively firm, very reliable during the use.
In this embodiment, the lower end of the separation seat 9 is provided with a water retaining ring 30, the third drainage groove 20 is disposed in the water retaining ring 30, the sealing member 21 is a sealing gasket, the sealing gasket is sized to be matched with the water retaining ring 30, the outer wall of the sealing gasket is tightly attached to the inner wall of the water retaining ring 30, and the sealing gasket is also abutted to the lower end face of the separation seat 9. Preferably, the groove wall of the third drainage groove 20 protrudes downwards from the lower end surface of the partition seat 9, the sealing member 21 is provided with a groove 31 adapted to the third drainage groove 20, and the groove wall of the third drainage groove 20 is embedded in the groove 31. The through hole 22 is located at the center of the sealing member 21 and is opposite to the second sewer hole 19. The sealing gasket adopted in the embodiment has a unique structural design, and not only has a sealing effect by matching with the water blocking ring 30, but also has a drainage effect by matching with the third drainage groove 20, so that water flowing into the third drainage groove 20 from the first drainage hole 16 is guided to the second drainage hole 19 and finally reaches the coffee accommodating cup 17.
In this embodiment, a plurality of reinforcing ribs 32 are provided on the outer wall of the tower-type strut 8. Because the water pump assembly 4 can shake in the use, and then influence the drainage system, through the setting of strengthening rib 32, can let tower branch 8 more firm reliable for inside hydroenergy can flow smoothly, thereby can provide stable water yield.
In this embodiment, the lower end surface of the separation seat 9 is provided with a stop collar 33 in a protruding manner, the diameter of the stop collar 33 is larger than that of the water retaining collar 30, a first sealing ring 36 is arranged between the stop collar 33 and the water retaining collar 30, a circle of positioning rib 34 is provided at the upper end of the coffee accommodating cup 17 in a protruding manner, and the positioning rib 34 is clamped between the stop collar 33 and the water retaining collar 30 and is abutted to the first sealing ring 36. By adopting the structure of the embodiment, better sealing can be realized, the condition that leakage cannot occur is ensured, and meanwhile, the pressure of the outlet water is improved, so that the brewing effect is better.
In this embodiment, a boss 35 is disposed at the upper end of the coffee receiving cup 17, the second water drain hole 19 is located at the center of the boss 35, and the boss 35 is bowl-shaped. The diameter of the bowl-shaped boss 35 is larger than the diameter of the through hole 22, and the diameter of the through hole 22 is larger than the diameter of the second drain hole 19. The dimensions of the bowl-shaped boss 35, the through hole 22 and the second drain hole 19 are specifically defined in this embodiment, so that the water flow can smoothly flow into the accommodating chamber 6 without being blocked during the flowing process. In addition, the bowl-shaped boss 35 is adopted, so that the falling water can be buffered and guided.
In this embodiment, a second sealing ring 37 is disposed between the tower support rod 8 and the water outlet 10 of the water pump assembly 4, and a third sealing ring 38 is disposed between the first drainage groove 13 and the second drainage groove 14. By adopting the structure of the embodiment, better sealing can be realized, the condition that leakage cannot occur at the installation positions of the second sealing ring 37 and the third sealing ring 38 is ensured, and meanwhile, the pressure of the outlet water is improved, so that the brewing effect is better.
The invention provides a drainage system of a portable coffee machine, wherein a user firstly adds water into a water cup body, then starts a water pump assembly to pump the water into a drainage channel in a tower type supporting rod, then flows into a drainage cavity formed by a first drainage groove and a second drainage groove and conducts drainage on the water flow in the horizontal direction for the first time, then flows into a third drainage groove through a first drainage hole and flows to a through hole on a sealing piece along the third drainage groove, at the moment, drainage on the water flow in the second horizontal direction is achieved, so that the water flow flows to the center from the side surface, and flows into a containing cavity through the through hole and the second drainage hole to be mixed with coffee raw materials to achieve a brewing function.
When the coffee brewing device is used, water is filled in the water cup body 1, coffee powder to be brewed is placed in the coffee brewing seat body 3, then the water cup body 1, the coffee machine main body 2 and the coffee brewing seat body 3 are connected into a whole, then the water pump assembly 4 is started, under the action of the water pump assembly 4, the water in the water cup body 1 enters the water inlet 11 of the water pump assembly 4 through the water inlet channel 5 in the coffee machine main body 2, flows into the water outlet channel through the water outlet 10 of the water pump assembly 4, then enters the accommodating cavity 6 of the coffee brewing seat body 3 and is fully mixed with the coffee powder, and then the coffee is brewed through the coffee outflow channel 7. As the water pressure can reach 18bar through the pumping pressure of the water pump assembly 4, the water pressure requirement of a user is completely met, and the espresso coffee can be brewed, and the coffee is characterized in that: the red-brown foam floats on the surface of the espresso coffee, the brewing quality is good, the cup body 1 for containing hot water does not need to bear pressure, the sealing requirement is low, and the leakage problem does not exist.

Claims (10)

1. The utility model provides a portable coffee machine's drainage system, this drainage system includes from last to setting gradually drinking cup, coffee machine main part and coffee brewing pedestal, coffee machine main part in be equipped with water pump assembly and inlet channel and play water channel, inlet channel's upper end and drinking cup intercommunication, inlet channel's lower extreme with water pump assembly's water inlet intercommunication, coffee brewing pedestal in be equipped with the chamber that holds that is used for making coffee, go out water channel's upper end with water pump assembly's delivery port intercommunication, go out water channel's lower extreme with hold the chamber intercommunication, coffee brewing pedestal in still be equipped with hold the coffee outflow channel that the chamber is linked together, its characterized in that: the water outlet channel comprises a tower-type supporting rod and a separation seat positioned between the coffee machine main body and the coffee brewing seat body, the upper end of the tower-type supporting rod is communicated with the water outlet of the water pump assembly, the lower end of the tower-type supporting rod is fixed with the separation seat, and the coffee brewing seat body is detachably connected with the separation seat;
a drainage channel is formed in the tower type supporting rod, a first drainage channel is formed in the bottom of the tower type supporting rod, a second drainage channel is formed in the upper end of the separation seat, the first drainage channel is in butt joint with the second drainage channel to form a drainage cavity, the drainage channel is communicated with the first drainage channel, a first drainage hole penetrating through the separation seat is formed in the second drainage channel, the first drainage hole and the drainage channel are arranged in a staggered mode, and the first drainage hole is closer to the center of the accommodating cavity than the drainage channel;
the coffee brewing seat comprises a coffee accommodating cup for accommodating coffee bags or coffee powder or coffee capsules and a coffee cup for accommodating coffee after brewing, wherein the accommodating cavity is positioned in the coffee accommodating cup, a coffee outflow channel is communicated with the accommodating cavity and the coffee cup, a second water draining hole communicated with the accommodating cavity is formed in the center of the upper end of the coffee accommodating cup, a third drainage groove is formed in the lower end of the separation seat, the first water draining hole is communicated with the third drainage groove, a sealing piece is further arranged, the sealing piece completely covers the third drainage groove, a through hole is further formed in the sealing piece, the through hole is communicated with the third drainage groove and the second water draining hole, and the through hole and the first water draining hole are arranged in a staggered mode.
2. The water drain system of a portable coffee machine of claim 1, wherein: the outer wall of the upper part of the tower type supporting rod is provided with a circle of clamping groove, the water outlet of the water pump assembly is provided with a slot, and the water pump assembly further comprises a clamp spring, when the upper end of the tower type supporting rod is inserted into the water outlet of the water pump assembly, the clamp spring is inserted into the clamping groove from the slot and clamped in the clamping groove;
the lower end of the tower type supporting rod is fixed with the separation seat through a screw, and the joint of the tower type supporting rod and the separation seat is coated with sealant.
3. The water drain system of a portable coffee machine of claim 1, wherein: the lower extreme of separating the seat is equipped with the water retaining ring, the third drainage groove set up in the water retaining ring, sealing member be sealing washer, sealing washer's size with water retaining ring looks adaptation, sealing washer's outer wall with the inner wall of water retaining ring is hugged closely, sealing washer still with the lower terminal surface butt of separating the seat.
4. The water drain system of a portable coffee machine of claim 1, wherein: the groove wall of the third drainage groove protrudes downwards from the lower end face of the separation seat, a groove matched with the third drainage groove is formed in the sealing piece, and the groove wall of the third drainage groove is embedded into the groove.
5. The water drain system of a portable coffee machine of claim 1, wherein: the through hole is positioned in the center of the sealing piece and is opposite to the second water outlet.
6. The water drain system of a portable coffee machine of claim 1, wherein: and a plurality of reinforcing ribs are arranged on the outer wall of the tower-type supporting rod.
7. A water drainage system for a portable coffee machine according to claim 3, wherein: the lower end face of the separation seat is provided with a limit ring in a downward protruding mode, the diameter of the limit ring is larger than that of the water retaining ring, a first sealing ring is arranged between the limit ring and the water retaining ring, a circle of positioning ribs are arranged at the upper end of the coffee containing cup in a protruding mode, and the positioning ribs are clamped between the limit ring and the water retaining ring and are in butt joint with the first sealing ring.
8. The water drain system of a portable coffee machine of claim 1, wherein: the upper end of the coffee accommodating cup is provided with a boss, the second water outlet is positioned in the center of the boss, and the boss is bowl-shaped.
9. The portable coffee machine of claim 8, wherein: the diameter of the boss is larger than that of the through hole, and the diameter of the through hole is larger than that of the second sewer hole.
10. The water drain system of a portable coffee machine of claim 1, wherein: and a second sealing ring is arranged between the tower-type supporting rod and the water outlet of the water pump assembly, and a third sealing ring is arranged between the first drainage groove and the second drainage groove.
CN201910251130.5A 2019-03-29 2019-03-29 Drainage system of portable coffee machine Active CN109757983B (en)

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CN201910251130.5A CN109757983B (en) 2019-03-29 2019-03-29 Drainage system of portable coffee machine

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CN109757983B true CN109757983B (en) 2023-12-05

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Publication number Priority date Publication date Assignee Title
CN113439999A (en) * 2020-03-25 2021-09-28 漳州灿坤实业有限公司 Beverage extraction machine and beverage extraction method

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CN106820973A (en) * 2016-12-09 2017-06-13 苏州科贝尔实业有限公司 Portable manifold type capsule drink reconstitutes cup and portable manifold type drink reconstitutes cup
CN209951054U (en) * 2019-03-29 2020-01-17 宁波方科电器有限公司 Drainage system of portable coffee machine

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WO2015084204A1 (en) * 2013-12-02 2015-06-11 Novadelta - Comércio E Indústria De Cafés S.A. Beverage-preparation machine of optimized construction and system of said machines
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