CN117322767A - Portable multifunctional coffee cup - Google Patents

Abstract

The invention discloses a portable multifunctional coffee cup. Comprises a cup cover; the first cup body comprises a first accommodating cavity inside; the bean grinding unit is used for grinding beans and comprises a feed opening for discharging ground powder; the second cup body comprises a second accommodating cavity inside; the upper part of the bean grinding unit is arranged in the first accommodating cavity and is connected with the first cup body in a matched manner, the lower part of the bean grinding unit is arranged in the second accommodating cavity and is connected with the second cup body in a matched manner, and the cup cover is assembled at one end of the first cup body to form an integrated cup. The coffee powder grinding machine integrates various products of a bean grinding coffee machine, a hand-washing kettle and a cup kettle, has reasonable overall structure layout, is convenient to carry, can be suitable for various scenes such as office places, travel, home leisure and the like, does not occupy space, has light weight, can be charged and heated, and can keep warm with hot water, and the coffee powder is ground during brewing; the water heater has the function of heating water, the water temperature gear is adjustable, the grinding gear is adjustable, and different user requirements are met.

Description

Portable multifunctional coffee cup

Technical Field

The invention relates to the technical field of articles for daily use, in particular to a portable multifunctional coffee cup.

Background

Coffee is a common beverage and generally comprises packaged coffee and freshly ground coffee, and the mouthfeel of freshly ground coffee is often better than that of packaged coffee. The existing ground coffee needs to be ground by a coffee machine, and the common coffee machine is large in size and inconvenient to carry.

For the freshly ground coffee, besides grinding by a coffee machine, the freshly ground coffee also needs to be brewed by boiled water after grinding, high-temperature water capable of brewing coffee can be obtained at any time outside, and the water temperature in a common vacuum cup also drops after a period of time, so that the freshly ground coffee cannot be used for brewing coffee.

Based on the above-mentioned related technical problems, the applicant has filed the present application.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides a portable multifunctional coffee cup, integrates a bean grinding coffee machine, a hand brewing kettle and a cup kettle into a whole, solves the problem that coffee lovers can personally and personally taste coffee at any time and any place no matter in office places, traveling outside and leisure at home, does not occupy space, has light weight, can charge and heat, can heat hot water and keep temperature, and can brew the ground coffee.

In order to solve the technical problems, the invention is solved by the following technical scheme:

a portable multifunctional coffee cup comprises

A cup cover;

the first cup body comprises a first accommodating cavity inside;

the bean grinding unit is used for grinding beans and comprises a feed opening for discharging ground powder; and

the second cup body comprises a second accommodating cavity inside;

the upper part of the bean grinding unit is arranged in the first accommodating cavity and is connected with the first cup body in a matched manner, the lower part of the bean grinding unit is arranged in the second accommodating cavity and is connected with the second cup body in a matched manner, and the cup cover is assembled at one end of the first cup body to form an integrated cup.

In the above scheme, preferably, both ends of the first cup body comprise threaded parts matched with the threads of the cup cover;

the cup cover comprises a plurality of water outlets and a plurality of sealing covers for sealing the water outlets;

the cup cover comprises a temperature sensing unit and a temperature display electrically connected with the temperature sensing unit.

In the above aspect, preferably, the first cup body includes a liner, an outer liner, and a first cup body support, where the first accommodating cavity is located in the liner, the first cup body support is configured at one end of the outer liner, and a power supply unit, a PCB unit, and a heating unit that are electrically connected with each other and are matched with the liner are configured in the first cup body support;

the first cup body bracket comprises a plurality of control units electrically connected with the PCB unit and used for controlling the heating temperature;

the power supply unit comprises a power supply interface, and the first cup body bracket comprises a silica gel plug for sealing the power supply interface.

In the above scheme, preferably, the bean grinding unit comprises an outer shell with an opening at the lower end, an inner grinding core, an outer grinding core and a driving unit, wherein the inner grinding core, the outer grinding core and the driving unit are arranged in the outer shell, the driving unit is in transmission connection with the inner grinding core through an output shaft and is used for driving the inner grinding core to rotate, and a gap is reserved between the inner grinding core and the outer grinding core so that materials can fall outside the outer shell from the opening after being ground.

In the above scheme, preferably, the driving unit is a motor, and the inner grinding core includes a matching hole in transmission connection with the output shaft.

In the above aspect, preferably, the outer housing includes an upper cover and a lower cover;

the upper cover is connected with the lower cover in an assembling way, the driving unit is arranged in the upper cover, and the bottom of the upper cover comprises a first hole for the output shaft to pass through;

the lower cover comprises a bean bin, a limiting table positioned in the bean bin and a second hole communicated with the bean bin, the inner grinding core and the outer grinding core are positioned below the second hole, the limiting table comprises a third hole used for the output shaft to pass through, and a spring is arranged between the limiting table and the inner grinding core.

In the above scheme, preferably, the outer shell further comprises a gear adjusting plate, a limiting piece and a lifting table;

the gear adjusting plate comprises an accommodating cavity with an upper opening and a lower opening, the lifting table and the limiting piece are arranged in the accommodating cavity, a plurality of clamping convex heads matched with the limiting piece are arranged at the upper end of the gear adjusting plate, and the limiting piece is fixedly arranged on the lower cover;

the bottom surface of the gear adjusting plate comprises a plurality of protrusions, and the lifting table comprises a plurality of high and low surfaces matched with the protrusions;

a bottom plate matched with the inner grinding core is arranged at the opening at the lower end of the lifting table, and the bottom plate is fixed on the lifting table main body through a plurality of spokes and is provided with a plurality of fourth holes for discharging powdery materials;

the upper end of the outer grinding core comprises a flange matched with the upper end face of the limiting piece.

In the above scheme, preferably, a battery, a PCB charging interface and a PCB switch are disposed in the upper cover, the battery and the PCB switch are electrically connected with the motor, and the PCB charging interface is electrically connected with the battery.

In the above scheme, preferably, the bean grinding unit further comprises a filter screen bin, and the bottom of the filter screen bin comprises a plurality of layers of filter screens;

the filter screen bin is characterized in that a plurality of hanging lugs are rotatably arranged on the outer wall of the filter screen bin, the hanging lugs are provided with a first position in a folding state and a second position in a unfolding state, a limiting table used for limiting the unfolding angle of the hanging lugs is arranged on the outer wall of the filter screen bin, when the hanging lugs are positioned at the first position, the whole filter screen bin can be placed in the second cup body, and when the hanging lugs are positioned at the second position, the filter screen bin can be positioned at the upper end of the second cup body through the hanging lugs, so that a gap is formed between the filter screen and the bottom of the second cup body.

In the above scheme, preferably, both ends of the first cup body are provided with thread parts in threaded connection with the cup cover;

the outer wall of the bean grinding unit is provided with at least two threaded parts which are used for being in threaded fit with the first cup body and the second cup body.

The beneficial effects of the invention are as follows:

the coffee powder grinding machine integrates various products of a bean grinding coffee machine, a hand-washing kettle and a cup kettle, has reasonable overall structure layout, is convenient to carry, can be suitable for various scenes such as office places, travel, home leisure and the like, does not occupy space, has light weight, can be charged and heated, and can keep warm with hot water, and the coffee powder is ground during brewing;

the water heater has the function of heating water, the water temperature gear is adjustable, the grinding gear is adjustable, and different user requirements are met.

Drawings

FIG. 1 is a schematic diagram of the present invention.

FIG. 2 is a schematic diagram showing an exploded state of the present invention.

Fig. 3 is a schematic view showing an exploded state of the cap and the first cup holder of the present invention.

Fig. 4 is a schematic view showing an exploded state of the cap and the first cup of the present invention.

Fig. 5 is a schematic view showing the internal structure of the first cup holder according to the present invention.

Fig. 6 is a schematic diagram of a bean grinding unit according to the present invention.

Fig. 7 is a schematic view showing an exploded state of the bean grinding unit of the present invention.

Fig. 8 is a schematic diagram showing a cross-sectional state of the bean grinding unit of the present invention.

Fig. 9 is a schematic view of the lower cover of the present invention.

Fig. 10 is a schematic view of another view of the lower cover of the present invention.

FIG. 11 is a schematic view of a shift position adjusting plate of the present invention.

Fig. 12 is a schematic view showing a state of cooperation of the gear adjusting plate and the stopper according to the present invention.

Fig. 13 is a schematic view showing a state of cooperation between the lifting platform and the inner grinding core.

Fig. 14 is a schematic view of a lifting platform according to the present invention.

Fig. 15 is a schematic view of a filter cartridge of the present invention.

Detailed Description

The invention is described in further detail below with reference to the attached drawings and detailed description:

referring to fig. 1 to 15, a portable multifunctional coffee cup includes a cup cover 1, a first cup body 2, a bean grinding unit 3, and a second cup body 4.

Wherein, the first cup body 2 comprises a first accommodating cavity 21, the second cup body 4 comprises a second accommodating cavity 41, the first cup body 2 is mainly used as a thermos cup, the first accommodating cavity 21 therein is mainly used for storing water, the second cup body 4 is mainly used for making coffee, the second accommodating cavity 41 therein is mainly used for accommodating coffee, and the first accommodating cavity 21 and the second accommodating cavity 41 can be used for accommodating the bean grinding unit 3 during assembly.

As shown in fig. 1, in the integrally assembled state of the present application, the carrying is more convenient in this state, the upper portion of the bean grinding unit 3 is disposed in the first accommodating cavity 21 of the first cup body 2, the lower portion is disposed in the second accommodating cavity 41 of the second cup body 4, one end of the first cup body 2 is abutted against or adjacent to one end of the second cup body 4, the cup cover 1 is assembled at the other end of the first cup body 2, and the integrally assembled state is similar to a common thermos cup in shape.

As one option, the outer wall of the bean grinding unit 3 is provided with at least two screw thread parts, one of which is matched with the first cup body 2, so that after the upper part of the bean grinding unit 3 enters the first accommodating cavity 21 of the first cup body 2, the first cup body 2 can be in screw thread matched connection with the bean grinding unit 3; the other part is matched with the second cup body 4, so that after the lower part of the bean grinding unit 3 enters the second accommodating cavity 41 of the second cup body 4, the second cup body 4 can be in threaded fit connection with the bean grinding unit 3, and further, one matched end of the first cup body 2 and the cup cover 1 is also provided with a threaded part which is in threaded fit connection with the cup cover 1, so that the connection between all parts of the assembled integrated cup is tighter.

In the first cup body 2, one end of the first cup body, which is in threaded fit with the bean grinding unit 3, can also be used for being in threaded fit with the cup cover 1, as shown in fig. 4, and in this state, the first cup body 2 and the cup cover 1 together form a vacuum cup, and can be used independently.

In this embodiment, the first cup 2 includes a liner, an outer liner, and a first cup support 22, the first accommodating cavity 21 is located in the liner, the first cup 2 support is disposed at one end of the outer liner, and a power unit, a PCB unit 23, and a heating unit 24 that are electrically connected with each other and are matched with the liner are disposed in the first cup support 22.

Alternatively, the outer edge of the lower end of the inner container is fixedly connected with the outer edge of the lower end of the outer container, the lower end of the inner container and the lower end of the outer container are both provided with openings, the heating unit 24 is used as the bottom surface of the inner container and is also used for sealing the bottom surface of the first accommodating cavity 21, the heating unit 24 is made of a rare earth thick film, and is fixed on the inner container through laser welding, a rare earth thick film heating technology is adopted, and a temperature control NTC25 is further configured on the heating unit.

The first cup support 22 includes a plurality of control units 26 electrically connected to the PCB unit 23 for controlling the heating temperature 24, where the control units 26 may be configured by a plurality of touch switch buttons, for example, the signal given once is to heat water to 45 degrees, the signal given once is to heat water to 55 degrees, the signal given once is to heat water to 100 degrees, and the heating function is turned off once again, and of course, one embodiment of the control units 26 and the signal given modes is that the first cup support 22 is further provided with a plurality of display lamps, each display lamp is engraved with a corresponding temperature number, for example, the signal given once is to heat water to 45 degrees, the corresponding lamp at 45 degrees is turned on, and so on.

In order to enable the outdoor cup to be heated, in this embodiment, the power supply unit includes a power supply interface 27 and a storage battery, and the power supply interface 27 is electrically connected with the storage battery, so as to ensure that the cup can be heated anytime and anywhere in a charging manner, and ensure that coffee can be brewed smoothly.

In this embodiment, the first cup holder 22 includes a silicone plug 28 for sealing the power interface 27.

For the bowl cover 1, it is including a plurality of delivery ports 11 and a plurality of closing cap 12 that are used for sealed delivery port, and closing cap 12 can be the flip-flop lid, realizes opening and closing of closing cap 12 through the mode of upset, and as one of them option, delivery port 11 has two at least, and one of them is used for the user to drink water and uses, and another is used for pouring the bubble coffee to use, to the delivery port that is used for pouring the bubble coffee to use, it can design has the arc chamfer to make things convenient for water to pour from in the first cup 2, prevents that water from splashing with the impact of drinking cup wall down.

In this embodiment, the cup cover 1 includes a temperature sensing unit and a temperature display 13 electrically connected to the temperature sensing unit, where a display surface of the temperature display 13 is located at an upper end surface of the cup cover 1, so that a user can check the temperature of cup water conveniently, and a temperature display fixing block is configured at the temperature display 13 and includes a pouring induction insert.

In this embodiment, the first cup holder 22 has a cavity 221 for storing coffee beans, as shown in fig. 2 and 3, and in the state of fig. 1, the cavity 221 faces the cup cover 1, and after the cup cover 1 is screwed with the cup cover, the coffee beans are stored therein.

For the bean grinding unit 3, it is used for grinding beans, and comprises an outer shell, an inner grinding core 31, an outer grinding core 32, a driving unit 33 and a filter screen bin 5, wherein the outer shell comprises an upper cover 61, a lower cover 62, a gear adjusting plate 63, a limiting piece 64 and a lifting table 65.

The upper cover 61 is assembled with the lower cover 62, the driving unit 33 is disposed in the upper cover 61, the bottom of the upper cover 61 includes a first hole for the output shaft 331 of the driving unit 33 to pass through, the lower cover 62 includes a bean cabin 621, a limit table 622 located in the bean cabin 621, and a second hole 623 communicated with the bean cabin 621, the limit table 622 includes a third hole 624 for the output shaft 331 to pass through, i.e. the output shaft 331 extends from the upper cover 61 to the lower cover 62, and sequentially passes through the first hole, the third hole 624 and the second hole 623, and then the lower end is connected with the inner grinding core 31 in a matched manner, so as to drive the inner grinding core 31 to rotate, while the inner grinding core 31 is disposed in the outer grinding core 32 with a gap therebetween, and coffee beans located between the inner grinding core 31 and the outer grinding core 32 are ground in the process of rotating the inner grinding core 31.

Alternatively, the driving unit 33 is a motor, and is fixedly mounted in the upper cover 61, the inner grinding core 31 includes a mating hole 311 mated with the output shaft 331, a mating portion of the output shaft 331 and the mating hole 311 is square, and the mating hole 311 is also square.

In this embodiment, the gear adjusting plate 63 includes a housing cavity 631 with an upper opening and a lower opening, the lifting platform 65, the limiting member 64, the inner grinding core 31 and the outer grinding core 32 are disposed in the housing cavity 631, and of course, part of the inner grinding core 31 and the outer grinding core 32 may extend out of the housing cavity 631.

As shown in fig. 8 and 12, the limiting member 64 is disposed above the gear adjusting plate 63, the lifting table 65 is disposed between the gear adjusting plate 63 and the bottom of the limiting member 64, the limiting member 64 is an annular member, and the outer grinding core 32 is disposed at the inner hole of the limiting member 64, and can form a transverse limit on the outer grinding core through the limiting member 64.

In this embodiment, the upper end of the gear adjusting plate 63 is configured with a plurality of clamping bosses 632 that cooperate with the limiting members 64, meanwhile, the limiting members 64 are fixedly mounted on the lower cover 62 through fasteners, and the lower edge of the bottom surface of the gear adjusting plate 63 can support the lifting table 65, so that the gear adjusting plate 63, the limiting members 64, the lifting table 65, the outer grinding core 32, the inner grinding core 31 and the lower cover 62 form an assembling relationship.

When the lifting platform 65 is installed in the gear adjusting plate 63, the lifting platform 65 has a movable space in the longitudinal direction, specifically, the bottom surface of the gear adjusting plate 63 includes a plurality of protrusions 633, the upper surface of each protrusion 633 may be arc-shaped or inclined with arc-shaped corners, corresponding to the protrusions, the lifting platform 65 includes a plurality of high and low surfaces 651 matched with the protrusions 633, as shown in fig. 12 and 14, the high and low surfaces 651 are formed by a plurality of inclined surfaces to form a wavy walking track, after the protrusions 633 are abutted against the protrusions, the protrusions 633 move along with the rotation of the gear adjusting plate 63, and when the protrusions 633 contact different positions on the high and low surfaces 651, the lifting platform 65 is driven to ascend or descend, and when the lifting platform ascends or descends, the lifting platform can drive the inner grinding core 31 to ascend or descend, so that the size of a gap between the inner grinding core 31 and the outer grinding core 32 is adjusted, and the grinding thickness of coffee beans is changed.

For the matching relationship between the lifting table 65 and the inner grinding core 31, in this embodiment, a bottom plate 652 matching with the inner grinding core 31 is disposed at the opening of the lower end of the lifting table 65, the bottom plate 652 is fixed on the lifting table 65 main body by a plurality of spokes 653, and a plurality of fourth holes 654 for discharging powdery materials are formed, and the fourth holes 654 are used as a discharging opening for discharging ground coffee, as shown in fig. 13.

Further, a spring 34 is further disposed between the limiting table 622 and the inner core 31 to adapt to the liftable inner core 31, so as to improve gear adjustment feel and stability of lifting the inner core 31.

In this embodiment, the inner grinding core 31 and the outer grinding core 32 are located below the second hole 623, and the upper end of the outer grinding core 32 includes a flange 321 matched with the upper end surface of the limiting member 64, so that the outer grinding core 32 is positioned by the limiting member 64 and the lower cover, and accuracy of grinding thickness gear adjustment is ensured.

As shown in fig. 6-8 and 15, the filter screen bin 5 is arranged below the outer shell, and the bottom of the filter screen bin comprises a plurality of layers of filter screens 51, and as one option, the filter screens 51 have two layers, which are all stainless steel filter screens.

The outer wall of the filter screen bin 5 is rotatably provided with a plurality of hanging lugs 52, and the hanging lugs 52 are provided with a first position in a folded state and a second position in an unfolded state, as shown in fig. 7 and 15, one of the two hanging lugs 52 is positioned at the first position in the folded state, and the other hanging lug 52 is positioned at the second position in the unfolded state.

The outer wall of the filter screen bin 5 is provided with a limiting table 53 for limiting the unfolding angle of the hanging lugs 52, when the hanging lugs 52 are in the first position, the whole filter screen bin 5 can be placed in the second cup body 4, and when the hanging lugs 52 are in the second position, the filter screen bin 5 can be positioned at the upper end of the second cup body 4 through the hanging lugs 52, so that a gap is formed between the filter screen 51 and the bottom of the second cup body 4.

Coffee powder falling from the fourth hole 654 enters the filter screen bin 5, then the hanging lugs 51 are unfolded, the filter screen bin 5 is placed on the second cup body 4, the hanging lugs 52 are contacted with the upper edge of the second cup body 4, the filter screen bin 5 is arranged in a suspended mode, then hot water is poured from an opening above the filter screen bin 5, and brewed coffee is located in the second cup body 4 for users to drink.

In this embodiment, a battery 71, a PCB charging interface 72 and a PCB switch 73 are disposed in the upper cover 61, the battery 71 and the PCB switch 63 are electrically connected with the motor 33, the PCB charging interface 72 is electrically connected with the battery 71, the PCB charging interface 72 is a PCB board with a charging interface, a hole for the charging interface to communicate with the outside is formed in the upper cover 61, a dust plug can be disposed at the hole, and the hole is sealed when charging is not needed; the PCB switch 73 is a PCB board with a switch, and a key switch is used to control the start and stop of the motor 33, and a silica gel key 74 can be configured on the top of the upper cover 61 to conceal the silica gel key, and the key switch can be pressed by pressing the silica gel key 74.

The application uses food level 316 material, vacuum cup, long-term heat preservation actually can reach 8 hours, use ceramic mill core, easy quick heat dissipation, remain coffee original taste, be different from stainless steel filter core and easily generate heat and send out scalding, there are different gear thickness to grind, coffee powder also applicable in the coffee machine of different models use, the chargeable water that heats up of thermos cup is to boiling, the bowl cover detects current drinking cup temperature at any time shows temperature function, mill beans part and use USB charging mode to charge, it can grind beans 15-16 times in succession to charge full electricity once, the fuselage is light alright carry anytime anywhere, collect grind beans, brewing, water boiling, keep warm in an organic whole.

The above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims (10)

1. A portable multifunctional coffee cup, characterized in that: comprising

A cup cover;

the first cup body comprises a first accommodating cavity inside;

the bean grinding unit is used for grinding beans and comprises a feed opening for discharging ground powder; and

the second cup body comprises a second accommodating cavity inside;

the upper part of the bean grinding unit is arranged in the first accommodating cavity and is connected with the first cup body in a matched manner, the lower part of the bean grinding unit is arranged in the second accommodating cavity and is connected with the second cup body in a matched manner, and the cup cover is assembled at one end of the first cup body to form an integrated cup.

2. A portable multi-functional coffee cup as claimed in claim 1, wherein: both ends of the first cup body comprise threaded parts matched with the threads of the cup cover;

the cup cover comprises a plurality of water outlets and a plurality of sealing covers for sealing the water outlets;

the cup cover comprises a temperature sensing unit and a temperature display electrically connected with the temperature sensing unit.

3. A portable multifunctional coffee cup according to claim 1 or 2, characterized in that: the first cup body comprises an inner container, an outer container and a first cup body support, the first accommodating cavity is positioned in the inner container, the first cup body support is arranged at one end of the outer container, and a power supply unit, a PCB unit and a heating unit matched with the inner container which are electrically connected with each other are arranged in the first cup body support;

the first cup body bracket comprises a plurality of control units electrically connected with the PCB unit and used for controlling the heating temperature;

the power supply unit comprises a power supply interface, and the first cup body bracket comprises a silica gel plug for sealing the power supply interface.

4. A portable multi-functional coffee cup as claimed in claim 1, wherein: the bean grinding unit comprises an outer shell with an opening at the lower end, an inner grinding core, an outer grinding core and a driving unit, wherein the inner grinding core, the outer grinding core and the driving unit are arranged in the outer shell, the driving unit is in transmission connection with the inner grinding core through an output shaft and is used for driving the inner grinding core to rotate, and a gap is reserved between the inner grinding core and the outer grinding core and is used for enabling materials to fall outside the outer shell from the opening after being ground.

5. A portable multi-functional coffee cup as claimed in claim 4 wherein: the driving unit is a motor, and the inner grinding core comprises a matching hole in transmission connection with the output shaft.

6. A portable multi-functional coffee cup as claimed in claim 4 wherein: the outer shell comprises an upper cover and a lower cover;

the upper cover is connected with the lower cover in an assembling way, the driving unit is arranged in the upper cover, and the bottom of the upper cover comprises a first hole for the output shaft to pass through;

the lower cover comprises a bean bin, a limiting table positioned in the bean bin and a second hole communicated with the bean bin, the inner grinding core and the outer grinding core are positioned below the second hole, the limiting table comprises a third hole used for the output shaft to pass through, and a spring is arranged between the limiting table and the inner grinding core.

7. A portable multi-functional coffee cup as claimed in claim 6 wherein: the outer shell also comprises a gear adjusting plate, a limiting piece and a lifting table;

the gear adjusting plate comprises an accommodating cavity with an upper opening and a lower opening, the lifting table and the limiting piece are arranged in the accommodating cavity, a plurality of clamping convex heads matched with the limiting piece are arranged at the upper end of the gear adjusting plate, and the limiting piece is fixedly arranged on the lower cover;

the bottom surface of the gear adjusting plate comprises a plurality of protrusions, and the lifting table comprises a plurality of high and low surfaces matched with the protrusions;

a bottom plate matched with the inner grinding core is arranged at the opening at the lower end of the lifting table, and the bottom plate is fixed on the lifting table main body through a plurality of spokes and is provided with a plurality of fourth holes for discharging powdery materials;

the upper end of the outer grinding core comprises a flange matched with the upper end face of the limiting piece.

8. A portable multi-functional coffee cup as claimed in claim 1, wherein: the upper cover is internally provided with a battery, a PCB charging interface and a PCB switch, the battery and the PCB switch are electrically connected with the motor, and the PCB charging interface is electrically connected with the battery.

9. A portable multifunctional coffee cup according to any of claims 1, 4-7, characterized in that: the bean grinding unit further comprises a filter screen bin, and the bottom of the filter screen bin comprises a plurality of layers of filter screens;

the filter screen bin is characterized in that a plurality of hanging lugs are rotatably arranged on the outer wall of the filter screen bin, the hanging lugs are provided with a first position in a folding state and a second position in a unfolding state, a limiting table used for limiting the unfolding angle of the hanging lugs is arranged on the outer wall of the filter screen bin, when the hanging lugs are positioned at the first position, the whole filter screen bin can be placed in the second cup body, and when the hanging lugs are positioned at the second position, the filter screen bin can be positioned at the upper end of the second cup body through the hanging lugs, so that a gap is formed between the filter screen and the bottom of the second cup body.

10. A portable multi-functional coffee cup as claimed in claim 1, wherein: both ends of the first cup body are provided with threaded parts which are in threaded connection with the cup cover;

the outer wall of the bean grinding unit is provided with at least two threaded parts which are used for being in threaded fit with the first cup body and the second cup body.