CN204970959U - Portable coffee grinds cup - Google Patents

Portable coffee grinds cup Download PDF

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Publication number
CN204970959U
CN204970959U CN201520767646.2U CN201520767646U CN204970959U CN 204970959 U CN204970959 U CN 204970959U CN 201520767646 U CN201520767646 U CN 201520767646U CN 204970959 U CN204970959 U CN 204970959U
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CN
China
Prior art keywords
emery wheel
grinding
coffee
interior
district
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201520767646.2U
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Chinese (zh)
Inventor
邵荣辉
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Individual
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Individual
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Filing date
Publication date
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Priority to CN201520767646.2U priority Critical patent/CN204970959U/en
Application granted granted Critical
Publication of CN204970959U publication Critical patent/CN204970959U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model relates to a portable coffee grinds cup, dash lid, hand operated grinder and thermos cup including the coffee hand, hand operated grinder includes handle, fineness regulation plum blossom board, grinds casing, interior emery wheel, driving stem, outer emery wheel and filter screen casing, grinding the casing top and being provided with semicircular storage cavity, the bottom of storage cavity is provided with the unloading hole, interior emery wheel passes through the below of rand fixed connection in the unloading hole, the first half of the hollow cavity inner wall of interior emery wheel is interior emery wheel corase grind district, and the latter half is interior emery wheel fine grinding district, the first half of outer emery wheel is outer emery wheel corase grind district, and the latter half is outer emery wheel fine grinding district, outer emery wheel is in in the hollow cavity of interior emery wheel. Dash the integrated an organic whole of lid, filter screen casing and thermos cup with coffee grinder's hand operated grinder, coffee hand, the operation is swiftly convenient to can realize the degree that refines of coffee powder and adjust, can satisfy the requirement that people anytime and anywhere infused coffee completely.

Description

A kind of Portable coffee grinding cup
Technical field
The utility model relates to Fresh Ground Coffee machine, particularly a kind of Portable coffee grinding cup.
Background technology
At present, the manual coffee bean grinder that market is sold generally all comprises bean milling device and discharging opening,
Bean milling device is by two abrasive wheel compositions of relative motion, and coffee bean is ground between two abrasive wheels
Powdered; But the gap between abrasive wheel is unadjustable, namely cannot realize coffee bean powder degree of refinement
Control, and current manual coffee machine only can realize coffee bean grinding powdered, if
Needs are infused coffee, and pour coffee cup into after also needing a percolator to brew coffee powder
Middle product use, whole requirements of process plurality of devices, cannot realize the function brewing Fresh Ground Coffee whenever and wherever possible at all.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of Portable coffee grinding cup, and user manually can process coffee bean whenever and wherever possible for oneself brewing one cup of Fresh Ground Coffee.For solving the problems of the technologies described above, the utility model realizes as follows: a kind of Portable coffee grinding cup described in the utility model comprises coffee hand punching lid, hand-operated grinder and thermos cup; Described hand-operated grinder comprises handle, fineness regulation quincuncial plate, grinding housing, interior emery wheel, power rail, outer emery wheel and filter screen shell; Be provided with semicircular storing cavity above described grinding housing, the center in storing cavity is fixedly connected with installation base; The bottom of storing cavity is provided with blanking hole; Described interior emery wheel is fixedly connected on the below of blanking hole by collar; Described interior emery wheel is hollow cylinder, and the first half of the hollow cavity inwall of interior emery wheel is interior emery wheel corase grind district, and the latter half is interior emery wheel fine grinding district; End and the outer emery wheel of described power rail are fixed, power rail is through the centre bore of installation base, the top of power rail is provided with fineness regulation screw thread and homalocephalus boss, homalocephalus boss is provided with nut clamping screw thread, described fineness regulation quincuncial plate is socketed on the fineness regulation screw thread of power rail by the screwed hole at center, fineness regulation quincuncial plate
Lower surface is abutted against on the upper surface of installation base; Described handle is fixed by socket by the flat hole of clamping and homalocephalus boss, and the nut clamping screw thread on nut and homalocephalus boss is fixed; The first half of the described outer emery wheel be fixedly connected on power rail is outer emery wheel corase grind district, and the latter half is outer emery wheel fine grinding district; Described outer emery wheel is in the hollow cavity of interior emery wheel, and outer emery wheel corase grind district and interior emery wheel are roughly ground to constitute between district and roughly ground chamber, constitute fine grinding chamber between outer emery wheel fine grinding district and interior emery wheel fine grinding district; Described filter screen shell is arranged at immediately below the powder falling gap bottom fine grinding chamber.The installation base of described grinding housing is fixedly connected in storing cavity by some gussets, and the external cylindrical surface of grinding housing is provided with clamping screw thread a and clamping screw thread b; In described grinding housing storing cavity bottom cavity in be provided with positioning boss; In described interior emery wheel is arranged by top, emery wheel locating slot is connected on the positioning boss of grinding housing.The top of the hollow cylinder of described interior emery wheel is provided with interior emery wheel and connects boss, and interior emery wheel locating slot is arranged at interior emery wheel and connects on boss; Be made up of two taper surfaces in the hollow cavity of described interior emery wheel, the two ends inlet diameter of the hollow cavity of interior emery wheel is large, and centre position diameter is little; Two taper surfaces in the hollow cavity of described interior emery wheel are respectively arranged with interior emery wheel corase grind district and interior emery wheel fine grinding district.The outer emery wheel that described outer emery wheel is socketed on power rail lower end by centre bore is installed on cylinder, and what outer emery wheel installed cylinder is provided with outer emery wheel retaining thread bottom, outer emery wheel and power rail is fixed by nut; The outer emery wheel fine grinding district of described outer emery wheel bottom is arranged on taper surface.The cylindrical cavity inwall of described coffee hand punching lid is provided with arc clamping boss, bottom cylindrical cavity, is provided with built-in cylindrical hole; The cylindrical wall of described coffee hand punching lid is provided with delivery port; Described coffee hand rushes the arc clamping boss that covers and the clamping screw thread a clamping on grinding housing, in the built-in cylindrical hole bottom the cylindrical cavity that nut is embedded in coffee hand punching lid.The thermos cup inner chamber of described thermos cup is provided with thermos cup clamping screw thread, thermos cup is by thermos cup clamping screw thread and the clamping screw thread b clamping on grinding housing.Described filter screen shell the first half is hollow cylinder, is the powder chambers of taper, the taper seat of powder chambers is provided with some treatment holes below hollow cylinder; The hollow cylinder external cylindrical surface of described filter screen shell is provided with circular orientation platform, and filter screen shell is connected to by circular orientation decometer on annular boss that the thermos cup inner chamber of thermos cup is arranged.Described handle comprises crank, one-level handle and secondary handle; Form between described one-level handle and secondary handle and be rotationally connected, one-level handle is provided with through hole; Described crank is connected to one-level handle end; Described secondary handle is provided with the flat hole of clamping, the end of secondary handle is provided with clamping bent plate, clamping bent plate and the locating notch clamping of a week of fineness regulation quincuncial plate.Described thermos cup is double-layer vacuum stainless steel cup or insulating plastic pipe cup.Good effect of the present utility model: a kind of Portable coffee grinding cup described in the utility model is by integrated to the hand-operated grinder of coffee bean grinder, coffee hand punching lid, filter screen shell and thermos cup, swift and convenient to operate, and the degree of refinement that can realize coffee powder regulates, and can meet the requirement that people infuse coffee completely whenever and wherever possible.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Figure 1 is the decomposition of the utility model structure schematic tutu 2 waving hand grinding machine breakdown structure tutu 3 waving hand grinder handle folded structure tutu 4 waving hand grinding machine of the structure of the handle to open the tutu 5 are hand grinding machine structure schematic tutu 6 is outside lever drive wheel connection structure schematic tutu 7 is grinding shell structure schematic tutu 8 is grinding shell structure schematic tutu 9 is hand grinding machine structure at the bottom of your tutu 10 is the structure of the power lever motioned tutu blunt cover 11 is the coffee, and the structure and signal tutu 12 is the structure of the vacuum cup beckoned tutu 13 is the structure of the grinding wheel motioned tutu 14 is motioned tutu 15 of the utility model structure is motioned tutu 16 of the utility model structure is the structure of the utility model water process diagram, 1 coffee hand blunt cover 2 hand grinding machine 3 vacuum cup 4 nut 5 fineness regulation plum flower plate 6 handle 7 8 grinding wheel in grinding shell 9 power lever and the grinding wheel 11 12 13 the loading screen shell cavity retainer ring 14 fine grinding chamber15Powder and coarse grinding cavity 17 18 hole 19 primary handle 20 secondary crank handle 21 grinding coarse grinding zone 22 external grinding fine grinding area 23 25 stiffened plates installed 24 convex clamping thread a26 card take b27 positioning convex 28 fell 30 nut powder clearance and flat head convex platform clamping thread 31 fineness regulation 32 wheel installed outside the cylindrical grinding wheel fixed outside thread 33 34 35 built-in cylindrical hole outlet 36 arc clamping convex platform 37 water cavity 38 39 vacuum keep-warm glass clamping screw within the lumen of 40 41 grinding wheel in grinding wheel positioning groove coarse grinding area within 42 grinding fine grinding area 43 decks 44 water 45 clamping plate
detailed description of the inventionas shown in Fig. 1 to Fig. 5, Figure 14, Figure 15, as special case study on implementation, a kind of Portable coffee grinding cup described in the utility model comprises coffee hand punching lid (1), hand-operated grinder (2) and thermos cup (3); Described hand-operated grinder (2) comprises handle (6), fineness regulation quincuncial plate (5), grinding housing (7), interior emery wheel (8), power rail (9), outer emery wheel (10) and filter screen shell (12); Described grinding housing (7) top is provided with semicircular storing cavity (13), and the center in storing cavity (13) is fixedly connected with installation base (23); The bottom of storing cavity (13) is provided with blanking hole; Described interior emery wheel (8) is fixedly connected on the below of blanking hole by collar (11); Described interior emery wheel (8) is hollow cylinder, and the first half of the hollow cavity inwall of interior emery wheel (8) is interior emery wheel corase grind district (41), and the latter half is interior emery wheel fine grinding district (42).As shown in Fig. 5, Fig. 6, Fig. 9, Figure 10, the end of described power rail (9) and outer emery wheel (10) are fixed, power rail (9) is through the centre bore of installation base (23), the top of power rail (9) is provided with fineness regulation screw thread (31) and homalocephalus boss (29), homalocephalus boss (29) is provided with nut clamping screw thread (26), described fineness regulation quincuncial plate (5) is socketed on the fineness regulation screw thread (31) of power rail (9) by the screwed hole at center, and the lower surface of fineness regulation quincuncial plate (5) is abutted against on the upper surface of installation base (23); Described handle (6) is fixed by socket by the flat hole of clamping and homalocephalus boss (29), and nut (4) is fixed with the nut clamping screw thread (30) on homalocephalus boss (29); The first half of the described outer emery wheel (10) be fixedly connected on power rail (9) is outer emery wheel corase grind district (21), and the latter half is outer emery wheel fine grinding district (22); Described outer emery wheel (10) is in the hollow cavity of interior emery wheel (8), outer emery wheel corase grind district (21) and interior emery wheel are roughly ground to constitute between district (41) and are roughly ground chamber (16), constitute fine grinding chamber (14) between outer emery wheel fine grinding district (22) and interior emery wheel fine grinding district (42); Described filter screen shell (12) is arranged at immediately below the powder falling gap (28) of bottom, fine grinding chamber (14).As shown in Figure 7, the installation base (23) of described grinding housing (7) is by some muscle
Plate (24) is fixedly connected in storing cavity (13), and the external cylindrical surface of grinding housing (7) is provided with clamping screw thread a(25) and clamping screw thread b(26); Positioning boss (27) is provided with in the below cavity of the middle storing cavity (13) of described grinding housing (7); In described interior emery wheel (8) is arranged by top, emery wheel locating slot (40) is connected on the positioning boss (27) of grinding housing (7).As shown in figure 13, the top of the hollow cylinder of described interior emery wheel (8) is provided with interior emery wheel and connects boss, and interior emery wheel locating slot (40) is arranged at interior emery wheel and connects on boss; Be made up of two taper surfaces in the hollow cavity of described interior emery wheel (8), the two ends inlet diameter of the hollow cavity of interior emery wheel (8) is large, and centre position diameter is little; Two taper surfaces in the hollow cavity of described interior emery wheel (8) are respectively arranged with interior emery wheel corase grind district (41) and interior emery wheel fine grinding district (42).The outer emery wheel that described outer emery wheel (10) is socketed on power rail (9) lower end by centre bore is installed on cylinder (32), what outer emery wheel (10) installed cylinder is provided with outer emery wheel retaining thread (33) bottom, outer emery wheel (10) and power rail (9) is fixed by nut; The outer emery wheel fine grinding district (22) of described outer emery wheel (10) bottom is arranged on taper surface.As shown in figure 11, the inner side of described coffee hand punching lid (1) is water storage cavity (37), the inwall of water storage cavity (37) is provided with arc clamping boss (36), and water storage cavity (37) bottom is provided with built-in cylindrical hole (35); The cylindrical wall of described coffee hand punching lid (1) is provided with delivery port (34); Arc clamping boss (36) on described coffee hand punching lid (1) and the clamping screw thread a(25 in grinding housing (7)) clamping, nut (4) is embedded in the built-in cylindrical hole interior (35) of water storage cavity (37) bottom of coffee hand punching lid (1).As shown in figure 12, the thermos cup inner chamber of described thermos cup (3) is provided with thermos cup clamping screw thread (38), thermos cup (3) is by thermos cup clamping screw thread (38) and the clamping screw thread b(26 in grinding housing (7)) clamping.Described thermos cup (3) is double-layer vacuum stainless steel cup or insulating plastic pipe cup.As shown in Fig. 2, Fig. 5, described filter screen shell (12) the first half is hollow cylinder, is the powder chambers (15) of taper, the taper seat of powder chambers (15) is provided with some treatment holes (43) below hollow cylinder; The hollow cylinder external cylindrical surface of described filter screen shell (12) is provided with circular orientation platform, and filter screen shell (12) is connected on the upper annular boss arranged of thermos cup inner chamber (39) of thermos cup (3) by circular orientation decometer.As shown in Figure 6, described handle (6) comprises crank (17), one-level handle (19)
With secondary handle (20); Form between described one-level handle (19) and secondary handle (20) and be rotationally connected, one-level handle (19) is provided with through hole (18); Described crank (17) is connected to one-level handle (19) end; Described secondary handle (20) is provided with the flat hole of clamping, and the end of secondary handle (20) is provided with clamping bent plate (45), clamping bent plate (45) and the locating notch clamping of (5) weeks of fineness regulation quincuncial plate.
During work, open coffee hand punching lid, loosen nut, takes off handle; Rotate fineness regulation
Quincuncial plate, is adjusted by the diverse location up and down fineness regulation quincuncial plate being set in power rail
The position of the lower outside emery wheel of duty in interior emery wheel hollow cavity, thus final setting corase grind chamber
With the gap length in fine grinding chamber, also just determine coffee bean grinding and become the large of the powder particle at end
Little; After adjusting fineness regulation quincuncial plate, load onto handle and nut, the clamping bent plate on handle
With the locating notch clamping of a week of fineness regulation quincuncial plate; The handle of folded state is opened, will
Storing cavity put into by coffee bean, and coffee bean falls into corase grind by the blanking hole below storing cavity
Chamber, by turning handle, coffee bean is carried out corase grind processing, coffee bean is formed after corase grind
Larger particle, and fall into fine grinding chamber again through grinding the thinner coffee particles of formation; Coffee
Coffee particle falls in filter screen shell by the powder falling gap bottom fine grinding chamber; As shown in figure 16,
Back out hand-operated grinder, boiling water is contained in coffee hand punching lid, and covered by the punching of coffee hand
Delivery port outflow is watered in the coffee particles in filter screen shell, soaks coffee particles,
The treatment hole that coffee liquid after soaking eventually is arranged from filter screen shell oozes out, and drips in thermos cup
In cavity; The punching of coffee hand covers less delivery port and can play concentrated flow and enter coffee particles
The effect that row brews; After finishing using, load onto hand-operated grinder, folding handle, and by coffee
Hand rushes lid and installs, and whole device volume is little, easy to carry, makes the function of Fresh Ground Coffee
Complete, simple and quick.
A kind of Portable coffee that the utility model that just explains through diagrams recited above is relevant
Some special case study on implementation of grinding cup, due to the technical staff concerning constructed field
Be easy to carry out some amendments on this basis, therefore this description is not really wanted this practicality new
A kind of Portable coffee grinding cup described in type be confined to shown or described concrete mechanism and
In the scope of application, therefore every corresponding modify that may be utilized and equivalent, all belong to this reality
With the protection domain of new patent.

Claims (9)

1. a Portable coffee grinding cup, is characterized in that: comprise coffee hand punching lid,
Hand-operated grinder and thermos cup; Described hand-operated grinder comprise handle, fineness regulation quincuncial plate,
Grinding housing, interior emery wheel, power rail, outer emery wheel and filter screen shell; Above described grinding housing
Be provided with semicircular storing cavity, it is convex that the center in storing cavity is fixedly connected with installation
Platform; The bottom of storing cavity is provided with blanking hole; Described interior emery wheel is fixedly connected on by collar
The below of blanking hole; Described interior emery wheel is hollow cylinder, the hollow cavity inwall of interior emery wheel
The first half is interior emery wheel corase grind district, and the latter half is interior emery wheel fine grinding district; Described power rail
End and outer emery wheel are fixed, and power rail is through the centre bore of installation base, and the top of power rail is established
Be equipped with fineness regulation screw thread and homalocephalus boss, homalocephalus boss be provided with nut clamping screw thread, institute
State fineness regulation quincuncial plate is socketed on power rail fineness regulation screw thread by the screwed hole at center
On, the lower surface of fineness regulation quincuncial plate is abutted against on the upper surface of installation base; Described handle
Be fixed by socket by the flat hole of clamping and homalocephalus boss, the nut clamping spiral shell on nut and homalocephalus boss
Line is fixed; The first half of the described outer emery wheel be fixedly connected on power rail is outer emery wheel corase grind
District, the latter half is outer emery wheel fine grinding district; Described outer emery wheel is in the hollow cavity of interior emery wheel,
Outer emery wheel corase grind district and interior emery wheel are roughly ground to constitute between district and are roughly ground chamber, outer emery wheel fine grinding district and interior
Emery wheel fine grinding constitutes fine grinding chamber between district; Described filter screen shell is arranged at falling bottom fine grinding chamber
Immediately below powder gap.
2. a kind of Portable coffee grinding cup according to claim 1, its feature exists
In: the installation base of described grinding housing is fixedly connected in storing cavity by some gussets,
The external cylindrical surface of grinding housing is provided with clamping screw thread a and clamping screw thread b; Described grinding shell
In body storing cavity bottom cavity in be provided with positioning boss; Described interior emery wheel is established by top
The interior emery wheel locating slot put is connected on the positioning boss of grinding housing.
3. a kind of Portable coffee grinding cup according to claim 1, its feature exists
In: the top of the hollow cylinder of described interior emery wheel is provided with interior emery wheel and connects boss, interior emery wheel
Locating slot is arranged at interior emery wheel and connects on boss; By two cones in the hollow cavity of described interior emery wheel
Shape face is formed, and the two ends inlet diameter of the hollow cavity of interior emery wheel is large, and centre position diameter is little;
Two taper surfaces in the hollow cavity of described interior emery wheel are respectively arranged with interior emery wheel corase grind district
With interior emery wheel fine grinding district.
4. a kind of Portable coffee grinding cup according to claim 1, its feature exists
In: described outer emery wheel is socketed on the outer emery wheel installation cylinder of power rail lower end by centre bore,
What outer emery wheel installed cylinder is provided with outer emery wheel retaining thread, bottom by nut by outer emery wheel
Fix with power rail; The outer emery wheel fine grinding district of described outer emery wheel bottom is arranged on taper surface.
5. a kind of Portable coffee grinding cup according to claim 1, its feature exists
In: the cylindrical cavity inwall of described coffee hand punching lid is provided with arc clamping boss, cylindrical cavity
Built-in cylindrical hole is provided with bottom body; The cylindrical wall of described coffee hand punching lid is provided with water outlet
Mouthful; Described coffee hand rushes the arc clamping boss and the clamping screw thread a card on grinding housing that cover
Connect, nut be embedded in coffee hand punching lid cylindrical cavity bottom built-in cylindrical hole in.
6. a kind of Portable coffee grinding cup according to claim 1, its feature exists
In: the thermos cup inner chamber of described thermos cup is provided with thermos cup clamping screw thread, thermos cup passes through
Thermos cup clamping screw thread and the clamping screw thread b clamping on grinding housing.
7. a kind of Portable coffee grinding cup according to claim 1, its feature exists
In: described filter screen shell the first half is hollow cylinder, for taper below hollow cylinder
Powder chambers, the taper seat of powder chambers is provided with some treatment holes; Described filter screen shell hollow
Cylinder external cylindrical surface is provided with circular orientation platform, filter screen shell is connect by circular orientation decometer
On the annular boss arranged on the thermos cup inner chamber of thermos cup.
8. a kind of Portable coffee grinding cup according to claim 1, its feature exists
In: described handle comprises crank, one-level handle and secondary handle; Described one-level handle and secondary
Form between handle and be rotationally connected, one-level handle is provided with through hole; Described crank is connected to one
Level handle end; Described secondary handle is provided with the flat hole of clamping, the end of secondary handle is arranged
There is clamping bent plate, clamping bent plate and the locating notch clamping of a week of fineness regulation quincuncial plate.
9. a kind of Portable coffee grinding cup according to claim 1, its feature exists
In: described thermos cup is double-layer vacuum stainless steel cup or insulating plastic pipe cup.
CN201520767646.2U 2015-10-02 2015-10-02 Portable coffee grinds cup Expired - Fee Related CN204970959U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520767646.2U CN204970959U (en) 2015-10-02 2015-10-02 Portable coffee grinds cup

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520767646.2U CN204970959U (en) 2015-10-02 2015-10-02 Portable coffee grinds cup

Publications (1)

Publication Number Publication Date
CN204970959U true CN204970959U (en) 2016-01-20

Family

ID=55105399

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201520767646.2U Expired - Fee Related CN204970959U (en) 2015-10-02 2015-10-02 Portable coffee grinds cup

Country Status (1)

Country Link
CN (1) CN204970959U (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105581655A (en) * 2016-03-18 2016-05-18 陈志刚 Coffee all-in-one cup machine
CN109662618A (en) * 2019-02-26 2019-04-23 邓彬彬 A kind of coffee differentiation grinding device
CN110074692A (en) * 2019-04-18 2019-08-02 厦门大学 A kind of modularization grinding cup
WO2022068395A1 (en) * 2020-09-29 2022-04-07 上海泰摩咖啡器具有限公司 Grinding and brewing integrated portable coffee machine and method for using same
ES2907186A1 (en) * 2020-10-16 2022-04-22 Del Dedo Elena Sardina Double grinding device for Italian coffee makers. (Machine-translation by Google Translate, not legally binding)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105581655A (en) * 2016-03-18 2016-05-18 陈志刚 Coffee all-in-one cup machine
CN109662618A (en) * 2019-02-26 2019-04-23 邓彬彬 A kind of coffee differentiation grinding device
CN110074692A (en) * 2019-04-18 2019-08-02 厦门大学 A kind of modularization grinding cup
WO2022068395A1 (en) * 2020-09-29 2022-04-07 上海泰摩咖啡器具有限公司 Grinding and brewing integrated portable coffee machine and method for using same
ES2907186A1 (en) * 2020-10-16 2022-04-22 Del Dedo Elena Sardina Double grinding device for Italian coffee makers. (Machine-translation by Google Translate, not legally binding)

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20160120

Termination date: 20171002

CF01 Termination of patent right due to non-payment of annual fee