Portable automatic coffee machine

Abstract

A portable automatic coffee machine, comprising a grinding compartment (21) detachably connected to a machine body (20). The grinding compartment (21) is internally provided with an inner burr (14) and an outer burr (15) used for grinding coffee beans; the machine body (20) is internally provided with a grinding motor (10) and a speed reduction mechanism connected to an output shaft of the grinding motor (10); one end of a rotating shaft (12) used for driving the inner burr (14) to rotate is connected to the speed reduction mechanism, and the other end of the rotating shaft (12) is connected to the inner burr (14); the machine body (20) is further internally provided with a water tank (2) used for containing a liquid and a water pump (23); the water tank (2) is provided with an electric heating element (4) used for heating the water tank (2); an inlet of the water pump (23) is communicated with an inner chamber of the water tank (2) by means of a water inlet pipe (19); a coffee bean storage cavity (22) is provided in the grinding compartment (21); the inner burr (14) and the outer burr (15) are located at the bottom of the coffee bean storage cavity (22); the top of a detachable filter screen (16) is connected to the bottom of the grinding compartment (21); the inner burr (14) and the outer burr (15) together define a powder outlet gap. Thus, the present invention is characterized by automatically grinding coffee beans and automatically brewing coffee while being portable.

Description

Portable automatic coffee machine TECHNICAL FIELD

[0001] The utility model relates to a portable automatic coffee machine. BACKGROUND

[0002] CN 115644715 A disclosed on January 31, 2023, a portable coffee bean grinder, including base, the base includes the drive motor arranged in the base, with the drive motor coupling gear reduction box, with the gear reduction box coupling rotating shaft;Coffee bean containing cup, the coffee bean containing cup is detachably connected on the base, coffee bean containing cavity is arranged in the coffee bean containing cup, the rotating shaft passes through the coffee bean containing cavity;Coffee grinding cup, the coffee grinding cup is detachably connected on the coffee bean containing cup, outer grinding wheel and inner grinding wheel are arranged in the coffee grinding cup, the rotating shaft lower end is connected on the inner grinding wheel, first engagement part is arranged on the outer grinding wheel, second engagement part is arranged on the inner grinding wheel, the inner grinding wheel is rotated under the driving of the rotating shaft to crush coffee beans between the outer grinding wheel and the inner grinding wheel and then falls from the gap between the first engagement part and the second engagement part, gap adjusting device for adjusting the gap size between the first engagement part and the second engagement part is arranged in the coffee grinding cup;Coffee powder cup, the coffee powder cup is detachably connected below the coffee grinding cup, coffee powder falling from the gap between the first engagement part and the second engagement part falls into the coffee powder cup.This portable coffee bean grinder can only grind coffee beans, but cannot brew coffee, which makes users not very satisfied, so it needs to be improved.

[0003] UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a portable automatic coffee machine that can both grind coffee beans and brew coffee to overcome the deficiencies in the prior art.

[0005] A portable automatic coffee machine designed for the purpose comprises a detachable grinding bin connected with a machine body, an inner cutter and an outer cutter arranged in the grinding bin for grinding coffee beans, a grinding motor arranged in the machine body and a speed reduction mechanism connected with an output shaft of the grinding motor, one end of a rotating shaft for driving the inner cutter connected with the speed reduction mechanism, and the other end of the rotating shaft connected with the inner cutter, characterized in that the machine body is further provided with a water bin for containing liquid and a water pump, an inlet of the water pump connected with an inner cavity of the water bin through a water inlet pipe, the grinding bin is provided with a coffee bean storage cavity, the inner cutter and the outer cutter are located at the bottom of the coffee bean storage cavity, a detachable filter screen is connected with the bottom of the grinding bin, a powder outlet gap formed by the inner cutter and the outer cutter, the powder outlet gap connected with an inner cavity of the filter screen, and an outlet of the water pump connected with the inner cavity of the filter screen.

[0006] Further, a first water flow channel is arranged on the machine body or the grinding bin and separated from the coffee bean storage cavity, and the outlet of the water pump is connected with the inner cavity of the filter screen through the first water flow channel.

[0007] Further, the water pump is arranged beside the grinding motor, the machine body is provided with a water outlet pipe, the bottom of the machine body is provided with an upper and lower through water outlet hole, the outlet of the water pump is connected with one end of the water outlet pipe, the other end of the water outlet pipe is connected with the water outlet hole, and the water outlet hole is connected with the first water flow channel.

[0008] Further, a scale dial for adjusting the particle size of coffee powder and a gear cover used in cooperation with the scale dial are arranged on the lower surface of the outer cutter, the other end of the rotating shaft is screwed with the gear cover after penetrating the inner cutter and the scale dial, the powder outlet gap is located outside the scale dial and the gear cover, the bottom of the grinding bin is further provided with a second water flow channel arranged in a ring shape, the first water flow channel is arranged vertically, a plurality of first water injection ports arranged in a circumferential interval and penetrating up and down are arranged on the end surface of the bottom of the grinding bin, the first water injection ports are connected with the inner cavity of the filter screen, one side of the second water flow channel is connected with the first water flow channel, and the other side of the second water flow channel is connected with the first water injection ports.

[0009] Further, the lower surface of the outer cutter is provided with a dial for adjusting the size of coffee powder particles and a rotating cover used in cooperation with the dial, the other end of the rotating shaft passes through the inner cutter and the dial and is screwed with the rotating cover, the rotating cover is provided with a third water flow channel arranged in a ring shape and having an upper opening, the bottom of the rotating cover is provided with two or more second water injection ports arranged at intervals and penetrating from top to bottom, the second water injection ports are connected with the inner cavity of the filter screen, one side of the third water flow channel is connected with the first water flow channel, the other side of the third water flow channel is connected with the second water injection port, the rotating cover is provided with a powder passing channel located below the powder outlet gap and penetrating from top to bottom, the powder passing channel is located beside the third water flow channel, and the powder passing channel is connected with the inner cavity of the filter screen.

[0010] Further, the body is provided with an inner cover for covering the water tank, an outer cover covers the inner cover, the grinding tank is provided with a bean receiving ring for shielding the first water flow channel and exposing the coffee bean storage cavity, when the bean receiving ring is not used, the bean receiving ring is arranged between the outer cover and the inner cover or on the inner cover; and / or, the water tank is provided with an electric heating element for heating the water tank.

[0011] Further, the body is provided with a first assembly groove with an opening facing downward at one end connected with the grinding tank, the end of the grinding tank is inserted into the first assembly groove, and the minimum diameter of the part where the first assembly groove is located is greater than the maximum diameter of the grinding tank; or, the grinding tank is provided with an assembly boss at one end connected with the body, the assembly boss is provided with a second assembly groove with an opening facing upward, and the minimum outer diameter of the assembly boss is greater than the maximum outer diameter of the remaining part of the grinding tank excluding the assembly boss.

[0012] Further, the lower surface of the filter screen is provided with a drinking cup, and the end of the body is crimped on the support;

[0013] The support is a first support, which includes a first support plate located at the upper part, a second support plate located at the lower part, and at least one intermediate connecting piece located at the middle part, the top of the intermediate connecting piece is connected with the first support plate, the bottom of the intermediate connecting piece is connected with the second support plate, the first support plate is provided with a first positioning hole, one end of the filter screen and the grinding tank passes through the first positioning hole in sequence, and the end of the body is crimped on the first support plate.

[0014] Or, the supporting piece is a second supporting piece, the second supporting piece comprises a third supporting plate located at the upper portion, one end of the first supporting leg is hinged to one end of the third supporting plate, one end of the second supporting leg is hinged to the other end of the third supporting plate, the third supporting plate is provided with a third positioning hole, the filter screen and one end of the grinding bin pass through the third positioning hole in sequence, and the portion where the first assembly groove is located is crimped on the third supporting plate.

[0015] Or, the supporting piece is a third supporting piece, the third supporting piece is annular, the drinking cup is connected with one end of the third supporting piece, and the machine body is connected with the other end of the third supporting piece, and the grinding bin and the filter screen are sleeved in the third supporting piece.

[0016] Further, the drinking cup is crimped on the second supporting plate, or the second supporting plate is provided with a second positioning hole, the minimum diameter of the second positioning hole is greater than or equal to the minimum diameter of the first positioning hole, or the side wall of the third supporting piece is provided with a ventilation hole.

[0017] Further, the bottom of the machine body is connected with the top of the drinking cup, and the grinding bin and the filter screen are located in the inner cavity of the drinking cup, or after the filter screen is removed, the bottom of the machine body is connected with the top of the drinking cup, and the grinding bin is located in the inner cavity of the drinking cup.

[0018] The utility model discloses adopt the technical scheme above, can heat the liquid, for example water, in the water bin while grinding coffee beans, can first grind coffee beans and then heat water, can first heat water and then grind coffee beans, then inject the water after heating into the filter screen under the action of the water pump, extract the coffee powder in the filter screen, and finally obtain coffee liquid in the drinking cup, the whole operation process is simple and fast, and the product is easy to carry.

[0019] The utility model discloses can prepare hot coffee, can also prepare ice coffee, has the wider application range.

[0020] Summarized above, the utility model has in the premise of portable, can automatically grind beans and can automatically brew coffee's characteristics. ACCURATE DRAWINGS

[0021] Fig. 1 is a partial cross-sectional view of the first embodiment of the utility model.

[0022] Fig. 2 is a partial cross-sectional view of the first embodiment of the utility model.

[0023] Fig. 3 is a partial cross-sectional view of the first embodiment of the utility model after removing the first supporting piece.

[0024] Figure 4 is one of the exploded perspective structural schematic views of the first embodiment of the present application after removing the first supporting member and the drinking cup.

[0025] Figure 5 is another of the exploded perspective structural schematic views of the first embodiment of the present application after removing the first supporting member and the drinking cup.

[0026] Figure 6 is a perspective structural schematic view of the grinding bin.

[0027] Figure 7 is a working process schematic view of the first embodiment of the present application.

[0028] Figure 8 is a partial cutaway perspective structural schematic view of the second embodiment of the present application after removing the first supporting member and the drinking cup.

[0029] Figure 9 is one of the working process schematic views of the second embodiment of the present application.

[0030] Figure 10 is another of the working process schematic views of the second embodiment of the present application.

[0031] Figure 11 is one of the partial cutaway structural schematic views of the second embodiment of the present application.

[0032] Figure 12 is another of the partial cutaway structural schematic views of the second embodiment of the present application.

[0033] Figure 13 is an exploded structural schematic view of the bean receiving ring and the grinding bin in the third embodiment of the present application.

[0034] Figure 14 is a perspective structural schematic view of the bean receiving ring.

[0035] Figure 15 is a schematic view of loading coffee beans into the grinding bin.

[0036] Figure 16 is a partial cutaway structural schematic view of the third embodiment of the present application.

[0037] Figure 17 is a perspective structural schematic view of the fourth embodiment of the present application when working.

[0038] Figure 18 is a perspective structural schematic view of the fourth embodiment of the present application when being stored.

[0039] Figure 19 is a perspective structural schematic view of the first supporting member in the fourth embodiment of the present application.

[0040] Figure 20 is a perspective structural schematic view of the fifth embodiment of the present application when working.

[0041] Figure 21 is a perspective structural schematic view of the second supporting member.

[0042] Figure 22 is a perspective structural schematic view of the fifth embodiment of the present application when being stored.

[0043] Figure 23 is a partial cutaway structural schematic diagram of the sixth embodiment of the present application.

[0044] In the figure: 1 is an outer cover, 2 is a water tank, 3 is a liquid, 4 is an electric heating element, 5 is a water outlet pipe, 5.1 is a water outlet hole, 6 is an electric control board, 7 is a first bearing, 8 is a second bearing, 9.1 is a dial, 9.2 is a gear cover, 10 is a grinding motor, 11 is a lithium battery, 12 is a rotating shaft, 13 is a spring, 14 is an inner blade, 15 is an outer blade, 16 is a filter screen, 16.1 is coffee powder, 17 is a drinking cup, 18 is a first water flow channel, 18.1 is a first water inlet, 19 is a water inlet pipe, 20 is a machine body, 20.1 is a control panel, 20.1.1 is a button, 20.2 is a first assembly groove, 20.3 is a positioning groove, 21 is a grinding chamber, 22 is a coffee bean storage cavity, 23 is a water pump, 24 is a second water flow channel, 25 is a flow cover, 25.1 is a second water inlet, 25.2 is a powder passing channel, 26 is a coffee bean receiving ring, 26.1 is an emptying hole, 27 is a coffee bean scoop, 28 is an inner cover, 29 is a positioning protrusion, 30 is a first support, 30.1 is a first support plate, 30.1.1 is a first positioning hole, 30.2 is a second support plate, 30.2.1 is a second positioning hole, 30.3 is a middle connecting piece, 34 is a third water flow channel, 40 is a second support, 40.1 is a third support plate, 40.1.1 is a third positioning hole, 40.2 is a first supporting leg, 40.3 is a second supporting leg, 50 is a third support, the dotted arrow in the figure is the water flow direction, and the solid arrow is the rotating direction of the flow cover. DETAILED DESCRIPTION

[0045] The present application is further described below in conjunction with the drawings and embodiments.

[0046] First embodiment

[0047] Referring to Figs. 1-23, a portable automatic coffee maker comprises a grinding bin 21 detachably connected with a machine body 20, an inner blade 14 and an outer blade 15 for grinding coffee beans are arranged in the grinding bin 21, a grinding motor 10 and a speed reduction mechanism connected with an output shaft of the grinding motor 10 are arranged in the machine body 20, one end of a rotating shaft 12 for driving the inner blade 14 to rotate is connected with the speed reduction mechanism, the other end of the rotating shaft 12 is connected with the inner blade 14, a water bin 2 for containing liquid and a water pump 23 are arranged in the machine body 20, an electric heating element 4 for heating the water bin 2 is arranged on the water bin 2, an inlet of the water pump 23 is connected with an inner cavity of the water bin 2 through a water inlet pipe 19, a coffee bean storage cavity 22 is arranged in the grinding bin 21, the inner blade 14 and the outer blade 15 are located at the bottom of the coffee bean storage cavity 22, a top of a detachable filter screen 16 is connected with the bottom of the grinding bin 21, a powder outlet gap surrounded by the inner blade 14 and the outer blade 15 is connected with an inner cavity of the filter screen 16, an outlet of the water pump 23 is connected with the inner cavity of the filter screen 16.

[0048] The inner blade 14 and the outer blade 15 for grinding coffee beans belong to the prior art, which will not be described here.

[0049] When ice water is injected into the water bin 2, the product can prepare ice coffee.

[0050] In the embodiment, the electric heating element 4 for heating the water bin 2 can be arranged on the water bin 2 according to specific needs, so that hot coffee can be prepared.

[0051] A first water flow channel 18 separated from the coffee bean storage cavity 22 is arranged on the machine body 20 or the grinding bin 21, the outlet of the water pump 23 is connected with the inner cavity of the filter screen 16 through the first water flow channel 18.

[0052] The water pump 23 is located below the water bin 2.

[0053] The water pump 23 is arranged beside the grinding motor 10, and a lithium battery 11 is arranged beside the grinding motor 10 in the machine body 20.

[0054] A water outlet pipe 5 is arranged in the machine body 20, a water outlet hole 5.1 penetrating up and down is arranged at the bottom of the machine body 20, the outlet of the water pump 23 is connected with one end of the water outlet pipe 5, the other end of the water outlet pipe 5 is connected with the water outlet hole 5.1, and the water outlet hole 5.1 is connected with the first water flow channel 18.

[0055] The lower surface of the outer knife 15 is provided with a dial 9.1 for adjusting the particle size of coffee powder and a dial cover 9.2 used in cooperation therewith, the other end of the rotating shaft 12 is screwed with the dial cover 9.2 after penetrating the inner knife 14 and the dial 9.1, and the powder outlet gap is located outside the dial 9.1 and the dial cover 9.2.

[0056] By adjusting the position of the dial cover 9.2 on the rotating shaft 12, the powder outlet gap can be adjusted through the cooperation of the spring 13 sleeved on the rotating shaft 12, so that coffee powder with different particle sizes can be obtained.

[0057] The first water flow channel 18 is vertically arranged.

[0058] Referring to FIGS. 4-5, the first water flow channel 18 is three and is arranged in a circumferential direction, and three positioning protrusions 29 are arranged on the upper part of the outer wall of the grinding bin 21, and the inner wall of the machine body 20 is provided with three positioning grooves 20.3 corresponding to the positioning protrusions 29, when the user inserts the three positioning protrusions 29 into the three positioning grooves to realize the butt joint of the grinding bin 21 and the machine body 20, the water outlet pipe 5 realizes communication with any one of the three first water flow channels 18, thereby reducing the operation difficulty of the user to align and communicate the water outlet pipe 5 with the first water flow channel 18.

[0059] Referring to FIGS. 6-7, the bottom of the grinding bin 21 is further provided with a second water flow channel 24 arranged in a ring shape, the first water flow channel 18 is vertically arranged, and a plurality of first water injection ports 18.1 arranged in a circumferential direction and penetrating up and down are arranged on the bottom end face of the grinding bin 21, the first water injection port 18.1 is in communication with the inner cavity of the filter screen 16, one side of the second water flow channel 24 is in communication with the first water flow channel 18, and the other side of the second water flow channel 24 is in communication with the first water injection port 18.1.

[0060] In operation, the heated water is injected into the filter screen along the plurality of first water injection ports 18.1 under the action of the water pump, which can avoid the channel effect caused by single-point water injection, that is, the coffee powder in the channel range is repeatedly extracted, resulting in over-extraction, excessive bitterness, smoke, wood and other negative flavors. Therefore, the present product adopts circumferential water injection to uniformly brew the coffee powder in the filter screen, and the overall flavor of the coffee liquid obtained is better and more mellow.

[0061] Referring to Fig. 4, the end of the body 20 where the grinding chamber 21 is connected is provided with a first assembly groove 20.2 opening downward, the end of the grinding chamber 21 is inserted into the first assembly groove 20.2, the minimum diameter of the part where the first assembly groove 20.2 is located is greater than the maximum diameter of the grinding chamber 21; or, the end of the grinding chamber 21 where the body 20 is connected is provided with an assembly boss, the assembly boss is provided with a second assembly groove opening upward, the minimum outer diameter of the assembly boss is greater than the maximum outer diameter of the remaining part of the grinding chamber 21 excluding the assembly boss.

[0062] The bottom of the body 20 is connected to the top of the drinking cup 17, the grinding chamber 21 and the filter screen 16 are located in the inner cavity of the drinking cup 17; or, after the filter screen 16 is removed, the bottom of the body 20 is connected to the top of the drinking cup 17, and the grinding chamber 21 is located in the inner cavity of the drinking cup 17.

[0063] Second embodiment

[0064] When the second water flow channel 24 arranged in a ring shape is provided at the bottom of the grinding chamber 21, the inner cutter 14 and the outer cutter 15 are located inside the second water flow channel 24, in order to ensure the strength of the grinding chamber 21, the thickness of the wall between the outer side of the outer cutter 15 and the second water flow channel 24 needs to be increased, which leads to the increase of the volume of the entire grinding chamber 21. Since the product is a portable structure, in order to prevent the inconvenience caused by the too large volume, the following structure can be used to avoid it.

[0065] Referring to Figs. 8-12, in this embodiment, the lower surface of the outer cutter 15 is provided with a dial 9.1 for adjusting the particle size of coffee powder and a flow cover 25 used in cooperation with the dial 9.1, the other end of the rotating shaft 12 passes through the inner cutter 14 and the dial 9.1 and is threadedly connected to the flow cover 25.

[0066] By adjusting the position of the flow cover 25 on the rotating shaft 12, and through the cooperation of the flow cover 25 with the spring 13 sleeved on the rotating shaft 12, the powder gap can be adjusted, so that coffee powder with different particle sizes can be obtained.

[0067] The rotating flow cover 25 is provided with a third water flow channel 34 in the form of a ring with an upper opening. The bottom of the rotating flow cover 25 is provided with two or more second water injection openings 25.1 arranged in intervals and penetrating from top to bottom. The second water injection openings 25.1 are in communication with the inner cavity of the filter screen 16. One side of the third water flow channel 34 is in communication with the first water flow channel 18, and the other side of the third water flow channel 34 is in communication with the second water injection openings 25.1. The rotating flow cover 25 is provided with a powder passing channel 25.2 below the powder outlet gap and penetrating from top to bottom. The powder passing channel 25.2 is beside the third water flow channel 34 and in communication with the inner cavity of the filter screen 16.

[0068] In operation, the rotating flow cover 25 is driven by the rotating shaft 12 to move in a circumferential direction slowly, so that the water flowing out of the second water injection openings 25.1 is also moved in a circumferential direction, thereby achieving circumferential water injection. The two or more second water injection openings 25.1 are arranged in intervals, thereby achieving uniform circumferential water injection.

[0069] Third embodiment

[0070] Referring to Figs. 13-16, in order to prevent coffee beans from entering the first water flow channel 18 and reduce the operation strength of the user, the machine body 20 is provided with an inner cover 28 for covering the water tank 2. The outer cover 1 is covered on the inner cover 28. The grinding tank 21 is provided with a bean covering ring 26 for covering the first water flow channel 18 and exposing the coffee bean storage cavity 22. When the bean covering ring 26 is not used, the bean covering ring 26 is arranged between the outer cover 1 and the inner cover 28 or on the inner cover 28.

[0071] The remaining parts not described are the same as those of the second embodiment, and will not be described again.

[0072] Fourth embodiment

[0073] Referring to Figs. 17-19, the filter screen 16 is provided with a drinking cup 17 below. The end of the machine body 20 is crimped on a support.

[0074] In this embodiment, the support is a first support 30.

[0075] The first supporting member 30 comprises a first supporting plate 30.1 at the upper portion, a second supporting plate 30.2 at the lower portion, and at least one intermediate connecting member 30.3 at the middle portion, the top of the intermediate connecting member 30.3 is connected with the first supporting plate 30.1, the bottom of the intermediate connecting member 30.3 is connected with the second supporting plate 30.2, the first supporting plate 30.1 is provided with a first positioning hole 30.1.1, the filter screen 16 and one end of the grinding bin 21 pass through the first positioning hole 30.1.1 in sequence, the end of the machine body 20 is crimped on the first supporting plate 30.1, and the drinking cup 17 is located below the filter screen 16.

[0076] The drinking cup 17 is crimped on the second supporting plate 30.2; or, the second supporting plate 30.2 is provided with a second positioning hole 30.2.1, the minimum diameter of the second positioning hole 30.2.1 is greater than or equal to the minimum diameter of the first positioning hole 30.1.1.

[0077] When the minimum diameter of the second positioning hole 30.2.1 is greater than or equal to the minimum diameter of the first positioning hole 30.1.1, it is possible that the minimum diameter of the second positioning hole 30.2.1 is greater than the cup body diameter of the drinking cup 17, so the situation shown in FIG. 16 occurs.

[0078] The remaining unstated parts are as described in the third embodiment, which will not be repeated here.

[0079] Fifth Embodiment

[0080] Referring to FIGS. 20-22, in this embodiment, the supporting member is a second supporting member 40.

[0081] The second supporting member 40 comprises a third supporting plate 40.1 at the upper portion, one end of a first supporting leg 40.2 is hinged to one end of the third supporting plate 40.1, one end of a second supporting leg 40.3 is hinged to the other end of the third supporting plate 40.1, the third supporting plate 40.1 is provided with a third positioning hole 40.1.1, the filter screen 16 and one end of the grinding bin 21 pass through the third positioning hole 40.1.1 in sequence, the portion where the first assembly groove 20.2 is located is crimped on the third supporting plate 40.1, and the drinking cup 17 is located below the filter screen 16 and between the other end of the first supporting leg 40.2 and the other end of the second supporting leg 40.3.

[0082] The lengths of the first supporting leg 40.2 and the second supporting leg 40.3 are respectively greater than the total height of the grinding bin 21, the filter screen 16 and the drinking cup 17.

[0083] The remaining unstated parts are as described in the third embodiment, which will not be repeated here.

[0084] Sixth embodiment

[0085] Referring to Fig. 23, in the present embodiment, the support is a third support 50.

[0086] The third support 50 is annular, the drinking cup 17 is connected to one end of the third support 50, the machine body 20 is connected to the other end of the third support 50, the drinking cup 17 is located below the filter screen 16, and the grinding bin 21 and the filter screen 16 are sleeved in the third support 50.

[0087] In order to obtain better use effect, the third support 50 is provided with a vent hole on the side wall.

[0088] The remaining unstated parts are described in the third embodiment, and will not be repeated here.

[0089] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application, and the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated.

[0090] The basic principles and main features of the present application and the advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principles of the present application, and various changes and improvements can be made to the present application without departing from the spirit and scope of the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A portable automatic coffee maker, comprising a grinding bin (21) detachably connected with a machine body (20), an inner blade (14) and an outer blade (15) for grinding coffee beans being arranged in the grinding bin (21), a grinding motor (10) and a speed reduction mechanism connected with an output shaft of the grinding motor (10) being arranged in the machine body (20), one end of a rotating shaft (12) for driving the inner blade (14) to rotate being connected with the speed reduction mechanism, and the other end of the rotating shaft (12) being connected with the inner blade (14), characterized in that The machine body (20) is further provided with a water tank (2) for containing liquid and a water pump (23), the inlet of the water pump (23) is connected with the inner cavity of the water tank (2) through a water inlet pipe (19), the grinding bin (21) is provided with a coffee bean storage cavity (22), the inner cutter (14) and the outer cutter (15) are located at the bottom of the coffee bean storage cavity (22), the top of the detachable filter screen (16) is connected with the bottom of the grinding bin (21), the powder outlet gap surrounded by the inner cutter (14) and the outer cutter (15) is connected with the inner cavity of the filter screen (16), and the outlet of the water pump (23) is connected with the inner cavity of the filter screen (16).

2. A portable automatic coffee machine according to claim 1, characterized in that The machine body (20) or the grinding bin (21) is provided with a first water flow channel (18) which is separated from the coffee bean storage cavity (22), and the outlet of the water pump (23) is connected with the inner cavity of the filter screen (16) through the first water flow channel (18).

3. A portable automatic coffee machine according to claim 2, characterized in that The water pump (23) is arranged beside the grinding motor (10), the machine body (20) is provided with a water outlet pipe (5), the bottom of the machine body (20) is provided with a water outlet hole (5.1) which penetrates up and down, the outlet of the water pump (23) is connected with one end of the water outlet pipe (5), the other end of the water outlet pipe (5) is connected with the water outlet hole (5.1), and the water outlet hole (5.1) is connected with the first water flow channel (18).

4. A portable automatic coffee machine according to claim 2, characterized in that The lower surface of the outer cutter (15) is provided with a scale disc (9.1) for adjusting the particle size of coffee powder and a gear cover (9.2) used in cooperation with the scale disc (9.1), the other end of the rotating shaft (12) is screwed with the gear cover (9.2) after penetrating through the inner cutter (14) and the scale disc (9.1), and the powder outlet gap is located outside the scale disc (9.1) and the gear cover (9.2). The bottom of the grinding bin (21) is further provided with a second water flow channel (24) arranged in a ring shape, the first water flow channel (18) is vertically arranged, a plurality of first water injection openings (18.1) which are circumferentially spaced and penetrate up and down are arranged on the end surface of the bottom of the grinding bin (21), the first water injection openings (18.1) are connected with the inner cavity of the filter screen (16), one side of the second water flow channel (24) is connected with the first water flow channel (18), and the other side of the second water flow channel (24) is connected with the first water injection openings (18.1).

5. A portable automatic coffee machine according to claim 2, characterized in that The lower surface of the outer cutter (15) is provided with a scale disc (9.1) for adjusting the particle size of coffee powder and a gear cover (9.2) used in cooperation with the scale disc (9.1), the other end of the rotating shaft (12) is screwed with the gear cover (9.2) after penetrating through the inner cutter (14) and the scale disc (9.1), and the powder outlet gap is located outside the scale disc (9.1) and the gear cover (9.2). The rotating flow cover (25) is provided with a third water flow channel (34) arranged in a ring shape and having an upper opening. The bottom of the rotating flow cover (25) is provided with two or more second water injection openings (25.1) arranged at intervals and vertically penetrating. The second water injection openings (25.1) are connected to the inner cavity of the filter screen (16). One side of the third water flow channel (34) is connected to the first water flow channel (18). The other side of the third water flow channel (34) is connected to the second water injection openings (25.1). The rotating flow cover (25) is provided with a powder passing channel (25.2) located below the powder outlet gap and vertically penetrating. The powder passing channel (25.2) is located beside the third water flow channel (34) and is connected to the inner cavity of the filter screen (16).

6. A portable automatic coffee machine according to claim 2, characterized in that The machine body (20) is provided with an inner cover (28) for covering the water tank (2). The outer cover (1) is connected to the inner cover (28). The grinding tank (21) is provided with a coffee bean receiving ring (26) for covering the first water flow channel (18) and exposing the coffee bean storage cavity (22). When the coffee bean receiving ring (26) is not used, the coffee bean receiving ring (26) is arranged between the outer cover (1) and the inner cover (28) or on the inner cover (28). The water tank (2) is provided with an electric heating element (4) for heating the water tank (2).

7. A portable automatic coffee maker according to claim 1, characterized in that The end of the machine body (20) connected to the grinding tank (21) is provided with a first assembly groove (20.2) with an opening facing downward. The end of the grinding tank (21) is inserted into the first assembly groove (20.2). The minimum diameter of the part where the first assembly groove (20.2) is located is greater than the maximum diameter of the grinding tank (21). Alternatively, the end of the grinding tank (21) connected to the machine body (20) is provided with an assembly boss. The assembly boss is provided with a second assembly groove with an opening facing upward. The minimum outer diameter of the assembly boss is greater than the maximum outer diameter of the remaining part of the grinding tank (21) excluding the assembly boss.

8. A portable automatic coffee machine according to claim 7, characterized in that A drinking cup (17) is arranged below the filter screen (16). The end of the machine body (20) is crimped on a support; The support is a first support (30). The first support (30) includes a first support plate (30.1) located at the upper part, a second support plate (30.2) located at the lower part, and at least one intermediate connecting piece (30.3) located at the middle part. The top of the intermediate connecting piece (30.3) is connected to the first support plate (30.1). The bottom of the intermediate connecting piece (30.3) is connected to the second support plate (30.2). The first support plate (30.1) is provided with a first positioning hole (30.1.1). The filter screen (16) and one end of the grinding tank (21) pass through the first positioning hole (30.1.1) in sequence. The end of the machine body (20) is crimped on the first support plate (30.1). Or, the support is a second support (40), the second support (40) comprises a third support plate (40.1) located at the upper part, one end of a first supporting leg (40.2) is hinged to one end of the third support plate (40.1), one end of a second supporting leg (40.3) is hinged to the other end of the third support plate (40.1), the third support plate (40.1) is provided with a third positioning hole (40.1.1), the filter screen (16) and one end of the grinding bin (21) pass through the third positioning hole (40.1.1) in sequence, the end of the machine body (20) is crimped on the third support plate (40.1), a drinking cup (17) is located below the filter screen (16) and between the other end of the first supporting leg (40.2) and the other end of the second supporting leg (40.3), the length values of the first supporting leg (40.2) and the second supporting leg (40.3) are greater than the total height of the grinding bin (21), the filter screen (16) and the drinking cup (17) respectively; Or, the support is a third support (50), the third support (50) is annular, a drinking cup (17) is connected to one end of the third support (50), and the machine body (20) is connected to the other end of the third support (50), the grinding bin (21) and the filter screen (16) are sleeved in the third support (50).

9. A portable automatic coffee machine according to claim 8, characterized in that The drinking cup (17) is crimped on the second support plate (30.2); or, the second support plate (30.2) is provided with a second positioning hole (30.2.1), the minimum diameter of the second positioning hole (30.2.1) is greater than or equal to the minimum diameter of the first positioning hole (30.1.1); or, the third support (50) is provided with a vent hole on the side wall.

10. The portable automatic coffee maker according to claim 1, characterized in that The bottom of the machine body (20) is connected to the top of the drinking cup (17), and the grinding bin (21) and the filter screen (16) are located in the inner cavity of the drinking cup (17); or, after the filter screen (16) is removed, the bottom of the machine body (20) is connected to the top of the drinking cup (17), and the grinding bin (21) is located in the inner cavity of the drinking cup (17).

Images