CN221105531U

CN221105531U - Coffee machine

Info

Publication number: CN221105531U
Application number: CN202322757331.7U
Authority: CN
Inventors: 肖煜南; 戴芳胜; 叶岸军
Original assignee: Ningbo Borine Electric Appliance Co Ltd
Current assignee: Ningbo Borine Electric Appliance Co Ltd
Filing date: 2023-10-13
Publication date: 2024-06-11
Anticipated expiration: 2033-10-13

Abstract

The utility model relates to a coffee machine, which comprises a coffee cup, a machine body, a grinding mechanism, a water tank, a filter basket, a water tank hot pipe, a water cooling pipe and a discharging channel, wherein the filter basket is arranged on a top wall plate of a containing chamber; in a state in which the coffee cup is located in the accommodation chamber, the filter basket can be located in the accommodation chamber of the coffee cup. The filter basket continues to rotate, water is accelerated to permeate the coffee powder layer under the centrifugal action, the process is fully contacted with the coffee powder, the dissolution and diffusion rates of coffee substances are improved, and the coffee liquid for extracting relevant substances in the coffee powder rapidly permeates out of the filter holes under the centrifugal action and falls into the coffee cup, so that the extraction efficiency of the coffee powder is improved, and the brewing work can be completed in a short time.

Description

Coffee machine

Technical Field

The utility model relates to a coffee machine.

Background

The current coffee machine is an indispensable electric appliance in office areas and home schedules. Existing coffee machines include drip coffee machines, pressure coffee machines, cold extraction coffee machines and the like. Wherein the drip coffee maker drips coffee into the coffee pot by dripping heated water into the coffee grounds and then filtering through the filter screen. The pressure coffee machine forces hot water through the ground coffee by heating the water and creating a high pressure using a pressure pump, eventually flowing into the coffee cup. The cold extraction coffee machine adopts a cold water soaking mode to enable the coffee powder to be slowly contacted with water, so that dissolved substances such as aroma, taste, caffeine and the like of coffee are extracted.

However, the coffee machine has certain defects: if the drip coffee machine and the pressure coffee machine can not make cold drink coffee, the drip coffee machine can brew longer time and the pressure coffee machine has higher price; however, cold extraction of coffee requires a long time, hot coffee cannot be produced, and the quick demands of users cannot be met.

In order to make cold and hot coffee through the same machine, as in Chinese patent application No. ZL202223331610.9 (issued to the public No. CN 219020851U), a cold and hot integrated domestic coffee machine is disclosed, which comprises a coffee machine body, wherein a water tank is arranged in the coffee machine body in a clamping way, an upper clamping cover is arranged at the top end of the coffee machine body in a clamping way, a water storage table is arranged above a base of the coffee machine body, a control module is arranged in the coffee machine body, and the coffee machine body comprises a miniature water pump, a refrigerating module and a steam pump. According to the utility model, the refrigerating module, the steam pump, the water tank and the water outlet are arranged, the coffee is heated by adding water through the cooperation of the miniature water pump and the steam pump by the starting control module, the coffee cup is placed below the water outlet, the miniature water pump is started, and water in the water tank is conveyed to the refrigerating module through a pipeline for refrigerating and then is output into the cup from the water outlet.

The coffee machine can produce cold and hot coffee, but the extraction efficiency of the coffee is not high by adding water into the coffee powder, thereby affecting the taste of the coffee.

Accordingly, there is a need for further improvements to existing coffee machines.

Disclosure of utility model

The utility model aims to solve the technical problem of providing a coffee machine for improving the extraction efficiency of coffee powder aiming at the current state of the art.

The technical scheme adopted for solving the technical problems is as follows: a coffee machine, comprising:

a coffee cup having an open-topped cavity;

A body having a receiving chamber in which the coffee cup is disposed;

The grinding mechanism is arranged on the machine body and is provided with a discharge channel for the coffee powder to flow out;

The water tank is arranged on the machine body and is provided with a hot water pipe for discharging hot water and a cold water pipe for discharging cold water;

It is characterized in that the method also comprises the following steps:

The filter basket is arranged on the top wall plate of the accommodating chamber, a filter cavity with an open top and a closed bottom is arranged in the filter basket, filter holes are distributed on the peripheral wall of the filter basket and can rotate around the axis of the filter basket relative to the machine body, the axis of the filter basket is vertically arranged, and a hot water pipe, a cold water pipe and a discharge channel of the water tank are all communicated with the filter cavity; the filter basket can be positioned in the cavity of the coffee cup in a state that the coffee cup is positioned in the accommodating chamber.

Preferably, the peripheral wall of the filter basket is at least partially a contraction section with a cross-sectional area gradually decreasing from top to bottom, the cross section of the contraction section is circular, and the filter holes are arranged on the contraction section. In addition, the peripheral wall of the filter basket may take the form of a vertical wall.

In order to repeatedly extract relevant substances in the coffee powder, the coffee powder extraction device further comprises a transfusion tube, wherein a first end of the transfusion tube is communicated with the containing cavity of the coffee cup, a second end of the transfusion tube is in fluid communication with the filtering cavity of the filtering basket, and the second end of the transfusion tube is positioned at the downstream of the first end of the transfusion tube along a fluid flow path. In this way, the coffee liquid in the coffee cup can be input into the filter basket again for extraction.

Preferably, the filter basket further comprises a connecting pipe communicated with the filter cavity of the filter basket, the connecting pipe is respectively communicated with the cold water pipe and the hot water pipe and is positioned at the downstream of the cold water pipe and the hot water pipe along the fluid flow path, and the second end of the infusion pipe is communicated with the connecting pipe. Thus, hot water, cold water and coffee liquid in the coffee cup can be input into the filter basket through the same connecting pipe.

In order to realize the rotation of the filter basket, the filter basket further comprises a driving mechanism for driving the filter basket to rotate, and the power output end of the driving mechanism is in driving connection with the filter basket.

The structure of the driving mechanism is various, but preferably, the driving mechanism comprises a motor, a cover plate and a transmission gear mechanism, wherein the cover plate covers the top opening of the filter basket and is relatively fixed with the filter basket, an outer gear ring is arranged on the peripheral wall of the cover plate, the axis of the outer gear ring is the axis of the filter basket, a feed inlet communicated with the discharge channel is formed in the cover plate, an output shaft of the motor is connected with the transmission gear mechanism, and an output gear of the transmission gear mechanism is meshed with the outer gear ring.

The transmission gear mechanism may include only a driving gear and may include a driving gear and a driven gear, but preferably, the transmission gear mechanism includes a driving gear and a driven gear, the output shaft of the motor is vertically arranged, the driving gear is mounted on the output shaft of the motor, and the driven gear is mounted on the machine body through a vertically arranged mounting shaft, is meshed with the driving gear, and is the output gear.

Preferably, the mounting shaft is fixed relative to the driven gear, the grinding mechanism comprises a housing and a grinding assembly arranged in the housing, the grinding assembly is fixed relative to the mounting shaft, and the discharging channel is arranged on the housing. Therefore, the grinding assembly and the filter basket adopt the same driving mechanism, a power source for realizing rotation of the grinding assembly is not required to be additionally and independently arranged, and the cost is saved.

Preferably, the water tank is located at the periphery of the grinding mechanism.

In order to facilitate taking of the coffee cup, a lifting table capable of moving up and down relative to the bottom wall is arranged on the bottom wall of the accommodating chamber, a mounting hole for the lifting table to be mounted in is formed in the bottom wall of the accommodating chamber, the coffee cup is placed on the lifting table, the filter basket is located in the accommodating cavity of the coffee cup when the lifting table is in a lifting state, and the filter basket is located above the top edge of the coffee cup when the lifting table is in a descending state.

Compared with the prior art, the utility model has the advantages that: in this coffee machine, the coffee powder gets into in the appearance chamber of filter basket, the filter basket is rotatable, the coffee powder is compacted on the perisporium of filter basket under the effect of centrifugal force, the coffee powder is compacted back, water in the water tank is sent into in the filter basket through hot-water line or cold water pipe, the filter basket continues to rotate, the infiltration coffee powder layer is accelerated to water under the centrifugal effect, the water carries out abundant contact with the coffee powder under this process, coffee material dissolving and diffusion rate obtain promoting, the coffee liquid of the relevant material in the extraction coffee powder drops in the coffee cup after the filter hole under the centrifugal effect fast, the extraction efficiency of coffee powder has been improved, can accomplish brewing work in a short time, more satisfy user's demand.

Drawings

Fig. 1 is a schematic view of a structure of a lifting table in a lifting state in a coffee machine according to the present embodiment;

FIG. 2 is a cross-sectional view of FIG. 1;

FIG. 3 is a cross-sectional view of the lift table of FIG. 1 in a lowered state;

FIG. 4 is a system cross-sectional view showing a part of the structure of the coffee maker of the present embodiment;

Fig. 5 is a schematic view of a part of the structure in fig. 1.

Detailed Description

The utility model is described in further detail below with reference to the embodiments of the drawings.

As shown in fig. 1 to 5, the coffee maker of the present embodiment includes a coffee cup 1, a body 2, a grinding mechanism 3, a water tank 4, a filter basket 5, a liquid delivery tube 6, a connection tube 7, a driving mechanism 8, and a lifting table 9. Wherein the coffee cup 1 has an open-topped cavity 10.

As shown in fig. 1 to 3, the body 2 has a housing chamber 21 in which the coffee cup 1 is placed. The bottom wall of the accommodating chamber 21 is provided with a lifting table 9 which can move up and down relative to the bottom wall, the bottom wall of the accommodating chamber 21 is provided with a mounting hole 211 in which the lifting table 9 is mounted, and the coffee cup 1 is placed on the lifting table 9. The lifting table is lifted up and down in the manner of adopting a structure in the prior art, and detailed description thereof will not be repeated in this embodiment. In the state in which the coffee cup 1 is located in the receiving chamber 21, the filter basket 5 can be located in the receiving chamber 10 of the coffee cup 1. Specifically, in the ascending state of the lifting table 9, the filter basket 5 is located in the cavity 10 of the coffee cup 1, in the descending state of the lifting table 9, the filter basket 5 is located above the top edge of the coffee cup 1, and the top surface of the lifting table 9 is flush with the bottom wall of the accommodating chamber 21.

As shown in fig. 2 to 4, a water tank 4 is provided on the machine body 2, and a hot water pipe 41 for discharging hot water and a cold water pipe 42 for discharging cold water are provided on the water tank 4. The water in the water tank 4 is discharged through the hot water pipe 41 after being heated by the heater 43, and the water in the water tank 4 is discharged through the cold water pipe 42 after being cooled by the refrigerator 44. The filter basket 5 is disposed on the top wall plate of the accommodating chamber 21, the filter basket 5 has a filter chamber 50 with an open top and a closed bottom inside, and the filter basket 5 has filter holes 511 distributed on the peripheral wall. In this embodiment, the peripheral wall of the filter basket 5 is partially formed with a constricted section 51 having a cross-sectional area gradually decreasing from top to bottom, the constricted section 51 has a circular cross-section, and the filter holes 511 are formed in the constricted section 51. The filter basket 5 can rotate around the axis of the machine body 2 under the drive of the driving mechanism 8.

In this embodiment, the power take-off of the drive mechanism 8 is in driving connection with the filter basket 5. As shown in fig. 2, 3 and 5, the driving mechanism 8 comprises a motor 81, a transmission gear mechanism 83 and a cover plate 82 which covers the top opening of the filter basket 5 and is fixed relative to the filter basket 5. Wherein, be provided with outer ring gear 821 on the peripheral wall of apron 82, have the pan feeding mouth 822 that is linked together with row material passageway 311 on the apron 82, the output shaft of motor 81 is connected with drive gear mechanism 83, and the output gear of drive gear mechanism 83 meshes with outer ring gear 821. The transmission gear mechanism 83 includes a driving gear 831 and a driven gear 832. The output shaft of the motor 81 is vertically arranged, the driving gear 831 is mounted on the output shaft of the motor 81, and the driven gear 832 is mounted on the machine body 2 through the vertically arranged mounting shaft 84, is meshed with the driving gear 831, and is the output gear described above. In the present embodiment, the mounting shaft 84 is fixed relative to the driven gear 832.

As shown in fig. 2 to 4, the grinding mechanism 3 is provided on the body 2, and the grinding mechanism 3 has a discharge passage 311 through which the coffee powder flows out. In this embodiment, the polishing mechanism 3 includes a housing 31 and a polishing assembly 32 disposed in the housing 31, the polishing assembly 32 is relatively fixed on the mounting shaft 84, and the discharge channel 311 is disposed on the housing 31. Therefore, when the motor works, the filter basket 5 is driven to rotate through the transmission gear mechanism, and meanwhile, the grinding assembly 32 is driven to rotate, so that grinding and crushing of coffee beans are realized. The water tank 4 is located at the periphery of the grinding mechanism 3, and the hot water pipe 41, the cold water pipe 42 and the discharge channel 311 of the water tank 4 are all communicated with the filter cavity 50.

As shown in fig. 2-4, the first end of the infusion tube 6 is in communication with the cavity 10 of the coffee cup 1 and the second end of the infusion tube 6 is in fluid communication with the filter chamber 50 of the filter basket 5, the second end of the infusion tube 6 being downstream of the first end of the infusion tube 6 along the fluid flow path. The liquid pipe 6 is provided with a hydraulic pump 61 for pumping liquid into the filter chamber. In the present embodiment, the connection pipe 7 is in communication with the filter chamber 50 of the filter basket 5, the connection pipe 7 is in communication with the cold water pipe 42 and the hot water pipe 41, respectively, and is located downstream of the cold water pipe 42 and the hot water pipe 41 along the fluid flow path, and the second end of the infusion pipe 6 is in communication with the connection pipe 7.

The working process of the coffee machine is as follows:

The coffee cup 1 is placed on the lifting table 9, the lifting table 9 is lifted, the machine is started, and coffee beans are added into the housing 31 of the grinding mechanism 3. The ground coffee powder A is discharged through the discharging channel 311 of the grinding mechanism 3 and enters the containing cavity of the filter basket 5, the filter basket 5 rotates under the drive of the driving mechanism, the coffee powder A is compacted on the peripheral wall of the filter basket 5 under the action of centrifugal force, after the grinding mechanism 3 stops working, and after the coffee powder A is compacted, when cold extraction coffee is required to be produced, water in the water tank 4 is controlled by the electromagnetic valve to be injected into the filter basket 5 through the cold water pipe 42 after being cooled by the refrigerator 44, the filter basket 5 continues to rotate under the drive of the driving mechanism 8, the water is accelerated to permeate the coffee powder layer under the action of centrifugation, the water is fully contacted with the coffee powder A under the process, the dissolution and diffusion rate of the coffee substance are improved, and the coffee liquid for extracting relevant substances in the coffee powder A rapidly permeates out of the filter holes 511 under the action of centrifugation and falls into the coffee cup 1. For repeated extraction or brewing, the infusion tube 6 conveys the coffee liquid in the coffee cup 1 into the filter basket 5 again, and the coffee liquid is further dissolved in the rotation process of the filter basket 5, so that relevant substances in the coffee powder A are repeatedly extracted, brewing is completed, the lifting table 9 is lowered, the coffee cup 1 with the brewed coffee is taken away, and the filter basket 5 is taken down and washed clean.

When the coffee is to be extracted, the cold water is changed into hot water, namely, the water in the water tank 4 is heated by the heater 43 and then discharged into the filter basket 5 through the hot water pipe 41.

In the description and claims of the present utility model, terms indicating directions, such as "front", "rear", "upper", "lower", "left", "right", "side", "top", "bottom", etc., are used to describe various example structural parts and elements of the present utility model, but these terms are used herein for convenience of description only and are determined based on the example orientations shown in the drawings. Because the disclosed embodiments of the utility model may be arranged in a variety of orientations, the directional terminology is used for purposes of illustration and is in no way limiting, such as "upper" and "lower" are not necessarily limited to being in a direction opposite or coincident with the direction of gravity.

Claims

1. A coffee machine, comprising:

A coffee cup (1) having an open-topped cavity (10);

a body (2) having a housing chamber (21) in which the coffee cup (1) is placed;

a grinding mechanism (3) arranged on the machine body (2), wherein the grinding mechanism (3) is provided with a discharge channel (311) for the coffee powder to flow out;

A water tank (4) provided on the machine body (2), wherein a hot water pipe (41) for discharging hot water and a cold water pipe (42) for discharging cold water are provided on the water tank (4);

It is characterized in that the method also comprises the following steps:

The filter basket (5) is arranged on the top wall plate of the accommodating chamber (21), a filter cavity (50) with an open top and a closed bottom is arranged in the filter basket (5), filter holes (511) are distributed in the peripheral wall of the filter basket (5), the filter basket can rotate around the axis of the filter basket relative to the machine body (2), the axis of the filter basket (5) is vertically arranged, and a hot water pipe (41), a cold water pipe (42) and the discharge channel (311) of the water tank (4) are all communicated with the filter cavity (50); the filter basket (5) can be positioned in the cavity (10) of the coffee cup (1) in a state in which the coffee cup (1) is positioned in the containing chamber (21).

2. A coffee machine as claimed in claim 1, characterized in that: the peripheral wall of the filter basket (5) is at least partially a contraction section (51) with the cross-sectional area gradually reduced from top to bottom, the cross section of the contraction section (51) is circular, and the filter holes (511) are formed in the contraction section (51).

3. A coffee machine as claimed in claim 1 or 2, characterized in that: the coffee cup is characterized by further comprising a transfusion tube (6), wherein the first end of the transfusion tube (6) is communicated with the containing cavity (10) of the coffee cup (1), the second end of the transfusion tube (6) is in fluid communication with the filtering cavity (50) of the filtering basket (5), and the second end of the transfusion tube (6) is positioned at the downstream of the first end of the transfusion tube (6) along the fluid flow path.

4. A coffee machine as claimed in claim 3, characterized in that: the filter basket is characterized by further comprising a connecting pipe (7) communicated with a filter cavity (50) of the filter basket (5), wherein the connecting pipe (7) is respectively communicated with the cold water pipe (42) and the hot water pipe (41) and is positioned at the downstream of the cold water pipe (42) and the hot water pipe (41) along a fluid flow path, and the second end of the infusion pipe (6) is communicated with the connecting pipe (7).

5. A coffee machine as claimed in claim 3, characterized in that: the filter basket (5) is characterized by further comprising a driving mechanism (8) for driving the filter basket (5) to rotate, and the power output end of the driving mechanism (8) is in driving connection with the filter basket (5).

6. A coffee machine as claimed in claim 5, characterized in that: the driving mechanism (8) comprises a motor (81), a cover plate (82) and a transmission gear mechanism (83), wherein the cover plate (82) is covered at the opening of the top of the filter basket (5) and is relatively fixed with the filter basket (5), an outer gear ring (821) is arranged on the peripheral wall of the cover plate (82), the axis of the outer gear ring is the axis of the filter basket, the cover plate (82) is provided with a feeding port (822) communicated with the discharging channel (311), an output shaft of the motor (81) is connected with the transmission gear mechanism (83), and an output gear of the transmission gear mechanism (83) is meshed with the outer gear ring (821).

7. The coffee machine of claim 6, wherein: the transmission gear mechanism (83) comprises a driving gear (831) and a driven gear (832), wherein an output shaft of the motor (81) is vertically arranged, the driving gear (831) is installed on the output shaft of the motor (81), and the driven gear (832) is installed on the machine body (2) through a vertically arranged installation shaft (84), is meshed with the driving gear (831) and is an output gear.

8. The coffee machine of claim 7, wherein: the grinding mechanism (3) comprises a shell (31) and a grinding assembly (32) arranged in the shell (31), the grinding assembly (32) is relatively fixed on the mounting shaft (84), and the discharging channel (311) is arranged on the shell (31).

9. A coffee machine as claimed in claim 1, characterized in that: the water tank (4) is positioned at the periphery of the grinding mechanism (3).

10. A coffee machine as claimed in claim 1, characterized in that: the coffee cup is characterized in that a lifting table (9) capable of moving up and down relative to the bottom wall is arranged on the bottom wall of the accommodating chamber (21), a mounting hole (211) for the lifting table (9) to be mounted in is formed in the bottom wall of the accommodating chamber (21), the coffee cup (1) is placed on the lifting table (9), the filtering basket (5) is located in the accommodating cavity (10) of the coffee cup (1) when the lifting table (9) is in a lifting state, and the filtering basket (5) is located above the top edge of the coffee cup (1) when the lifting table (9) is in a descending state.