CN220494821U - Coffee machine with powder pressing function - Google Patents

Abstract

The utility model relates to a coffee machine with a powder pressing function, which comprises: the machine body is provided with a heating water supply unit and an extraction unit, the heating water supply unit is in fluid communication with the extraction unit, the extraction unit comprises an extraction mounting seat and a brewing box for containing coffee powder to be extracted, and the brewing box is detachably connected to the extraction mounting seat; the coffee powder brewing machine is characterized in that the machine body is also provided with a powder pressing device, the powder pressing device comprises a powder pressing cavity with an open lower part and a powder pressing head which can be arranged in the powder pressing cavity in a vertical moving mode, the brewing box can be connected to the open lower part of the powder pressing cavity, and coffee powder in the brewing box is pressed through the downward movement of the powder pressing head. The advantages are that: the condition that coffee powder is damped and hardened due to the fact that water vapor in the extraction process enters the grinding device can be effectively avoided, and the use experience of a user is improved.

Description

Coffee machine with powder pressing function

Technical Field

The utility model relates to the technical field of coffee machines, in particular to a coffee machine with a powder pressing function.

Background

Coffee is one of the most popular beverages in the world. The traditional coffee brewing process needs several processes of baking, grinding, brewing, filtering and the like, and although the traditional coffee making process has good ornamental and interesting properties. But many people do not have time to learn these processes relative to modern fast life; to solve this problem, coffee machines have been developed, which can be operated in the following manner: 1. a hand-brewing coffee machine; hand-brewed coffee machines, also known as drip coffee machines, rely on manual operation and gravity principles to make coffee. Common hand-brewed coffee machines include a law pressing pot, a hand brewing pot, a siphon pot, and the like. 2. A drip coffee machine; the drip type coffee machine is an automatic appliance for flushing coffee, and generally, coffee powder and water are respectively placed into independent containers, the coffee machine pumps water out of a water tank, the water is heated and then automatically dripped into a filter filled with the coffee powder, and the coffee is manufactured in the dripping process. 3. An espresso machine; espresso machines, also known as espresso machines, are machines that make espresso with hot water and high pressure. Common espresso machines are capsule coffee machines, semi-automatic coffee machines, and the like. 4. French press, which is a manual appliance for flushing coffee, mixes coffee powder and water thoroughly by pressure, and infuses coffee with a rich feeling of mouth. The coffee beans need to be manually ground, and the time and the powder amount are mastered. 5. The three-in-one coffee machine can automatically finish the work of grinding, brewing, sugar adding, milk adding and the like. Common three-in-one coffee machines are capsule coffee machines, automatic extraction coffee machines, and the like. 6. The full-automatic coffee machine can automatically finish all the works of grinding, brewing, sugar adding, milk adding and the like. Only press the button or select the setting program to make a cup of coffee easily.

The automatic control of the whole process of brewing coffee by preheating, cleaning, grinding, pressing powder, brewing, purging powder and the like is realized by the Italian coffee machine, hot water at about 90 ℃ is forced to pass through the young extruded coffee powder by using 20 Pa pressure, brewing is completed in a short time, the coffee brewed by the pressurized hot water is thicker than normal, emulsified grease exists, and the milk can be emulsified by high-pressure steam to prepare aromatic milk foam, and coffee in various forms such as cappuccino and the like can be brewed. Chinese patent application publication No. CN206659685U discloses an espresso machine comprising: the quantitative grinding device and the coffee extraction device are provided with a linkage type powder outlet groove mechanism between the quantitative grinding device and the coffee extraction device. The linkage type powder outlet groove mechanism comprises a powder outlet nozzle and a telescopic groove; the first end of the powder outlet nozzle is connected with the quantitative grinding device, and the telescopic groove is movably positioned at the second end of the powder outlet nozzle; the shifting fork linkage assembly is connected between the powder pressing head and the telescopic groove and used for driving the telescopic groove to synchronously stretch along with the movement of the powder pressing head. When the powder pressing head rises, the telescopic groove extends out of the powder outlet nozzle so that the coffee powder falls into the extraction cup downwards. A turnover movable baffle is hinged on the front end part shell of the powder outlet nozzle; when the telescopic groove extends out of the powder outlet nozzle, the powder outlet nozzle jacks up the movable baffle; a torque spring for driving the movable baffle to be closed is arranged between the movable baffle and the front end part of the powder outlet nozzle; when the telescopic groove is contracted, the torque spring drives the movable baffle to turn down and close; the movable baffle can completely shield the outlet of the powder outlet nozzle after being closed, so that the residual coffee powder in the powder outlet nozzle is prevented from continuously falling, and meanwhile, the phenomenon that water vapor in the coffee extraction process enters the powder outlet nozzle and the quantitative grinding device is prevented from causing the coffee powder to wet and harden is avoided.

However, the espresso coffee machine in the above patent application has a certain disadvantage that the coffee machine directly conveys ground coffee powder to the coffee extraction device (brewing chamber) and performs the powder pressing operation in situ, and although the movable baffle plate capable of being turned and closed is designed, the movable baffle plate may be blocked or have poor sealing performance, so that water vapor in the extraction process enters the powder outlet nozzle and the quantitative grinding device, and the condition that the coffee powder is damped and hardened occurs.

Therefore, there is a need for further improvements in existing coffee machines.

Disclosure of Invention

The utility model aims to solve the technical problem of providing a coffee machine with a powder pressing function, wherein the powder pressing process and the extraction process of a brewing box are independently finished at different positions.

The technical scheme adopted for solving the technical problems is as follows:

a coffee machine with a powder compacting function, comprising:

the machine body is provided with a heating water supply unit and an extraction unit, the heating water supply unit is in fluid communication with the extraction unit, the extraction unit comprises an extraction mounting seat and a brewing box for containing coffee powder to be extracted, and the brewing box is detachably connected to the extraction mounting seat;

the coffee powder brewing machine is characterized in that the machine body is also provided with a powder pressing device, the powder pressing device comprises a powder pressing cavity with an open lower part and a powder pressing head which can be arranged in the powder pressing cavity in a vertical moving mode, the brewing box can be connected to the open lower part of the powder pressing cavity, and coffee powder in the brewing box is pressed through the downward movement of the powder pressing head.

In order to facilitate manual powder pressing operation of a user, the powder pressing device further comprises an operating handle which is exposed out of the outer wall of the machine body and is held by the user, and the operating handle is connected with the powder pressing head. It is conceivable that the powder pressing head can be driven by an electric driving mechanism to realize powder pressing operation, and a user only needs to control through a key or a touch screen.

In order to make the powder pressing operation more convenient and labor-saving, the powder pressing device also comprises an elastic piece which acts on the powder pressing head or the operating handle, so that the powder pressing head always has upward moving trend. After the user presses down in place, release operating handle, the powder pressing head can automatic re-set under the effect of elastic component for powder pressing operation is more convenient, has improved user's use experience.

In general, the coffee powder brewing box can be installed on the lower opening of the powder pressing cavity to perform powder pressing operation after the coffee powder brewing box is filled, but in order to realize the grinding process and the powder pressing process at the same position in sequence, the method further comprises a bean grinding device arranged on the machine body, wherein the bean grinding device is provided with a powder outlet channel for discharging the ground coffee powder, and the powder outlet channel is communicated with the powder pressing cavity.

In order to simplify the structure of the bean grinding device, the bean grinding device comprises a bin for placing coffee beans and a grinding unit for grinding the coffee beans from the bin, wherein the grinding unit comprises a grinding chamber and a grinding component arranged in the grinding chamber, a feeding channel is arranged between the bin and the grinding chamber, and the grinding chamber is communicated with the powder pressing chamber through the powder outlet channel.

In order to reduce the area attached to the inner wall of the powder pressing chamber during the outflow process of the coffee powder as much as possible, the powder outlet channel is communicated with the powder pressing chamber and is adjacent to the lower opening of the powder pressing chamber.

In order to carry out reasonable space layout, the bin and the powder pressing chamber are sequentially arranged on the machine body from top to bottom, the bin and the grinding chamber are arranged in a staggered mode in the up-down direction, an inlet of the feeding channel is communicated with the bottom of the bin and extends obliquely from top to bottom towards the grinding chamber, an inlet of the powder outlet channel is communicated with the bottom of the grinding chamber and extends obliquely from top to bottom towards the powder pressing chamber.

As an improvement, the machine body comprises a machine shell, wherein the heating water supply unit, the grinding chamber of the bean grinding device and the powder pressing chamber of the powder pressing device are all arranged in the machine shell and are sequentially arranged in the left-right direction. Preferably, the units and the devices are sequentially arranged in the left-right direction in the casing, so that the whole machine body is flat, and the left-right dimension of the machine body is larger than the front-back dimension, and the volume of the machine body is smaller.

In order to ensure the overall stability of the coffee machine in the placement state, the extraction unit is arranged at the middle position of the front side wall of the machine body in the left-right direction.

In order to better accord with the operation habit of users, the machine body is provided with a mounting cavity with an open side part at the position corresponding to the area below the powder pressing cavity, and the brewing box can enter the mounting cavity through the open side part of the machine body and is connected with the lower opening part of the powder pressing cavity.

Compared with the prior art, the utility model has the advantages that: the powder pressing device of the coffee machine is independent of the extraction unit, wherein the powder pressing operation can be carried out by installing the coffee powder in the brewing box of the extraction unit at the lower opening of the powder pressing cavity after the coffee powder is filled in the brewing box, and the coffee powder in the brewing box is installed on the extraction installation seat of the extraction unit after the powder pressing is finished, so that the condition that the coffee powder is damped and hardened due to the fact that water vapor in the extraction process enters the grinding device can be effectively avoided, and the use experience of a user is improved.

Drawings

Fig. 1 is a schematic perspective view of a coffee machine according to an embodiment of the present utility model (a brewing cartridge is mounted on an extraction mount of an extraction unit);

fig. 2 is a schematic perspective view of a coffee maker according to an embodiment of the present utility model (the brew cartridge being mounted in the mounting chamber);

fig. 3 is a schematic perspective view of a coffee maker according to an embodiment of the present utility model (the brewing basket is in a separated state);

FIG. 4 is a top view of a coffee maker according to an embodiment of the present utility model;

FIG. 5 is a cross-sectional view A-A of FIG. 4 (the compact is in a raised state);

FIG. 6 is a cross-sectional view A-A of FIG. 4 (the compact is in a depressed state);

FIG. 7 is a cross-sectional view B-B of FIG. 4;

fig. 8 is a schematic perspective view of a coffee machine according to an embodiment of the present utility model (the cartridge is mounted in the mounting chamber);

fig. 9 is a schematic perspective view of a coffee machine according to an embodiment of the present utility model (the powder storage cartridge is in a disassembled state);

fig. 10 is a schematic perspective view of a powder storage box of the coffee machine according to the embodiment of the utility model.

Detailed Description

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

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.

Referring to fig. 1 to 10, a coffee machine with a bean grinding function includes a machine body 1, and a heating water supply unit 2, an extraction unit 3, a bean grinding device 4, and a powder pressing device provided on the machine body 1.

The machine body 1 comprises a machine shell 10, the heating water supply unit 2, the bean grinding device 4 and the powder pressing device are all arranged in the machine shell 10, and the extraction unit 3 is arranged outside the machine shell 10, in particular on the front side wall of the machine shell 10.

Referring to fig. 1, the extraction unit 3 includes an extraction mounting base 30 and a brewing box 31, wherein the top of the brewing box 31 is open, and is used for containing coffee powder to be extracted, and is connected to the bottom of the extraction mounting base 30 in a rotary clamping manner. The bottom of the brewing chamber 31 has a spout through which coffee can flow out during extraction. A cup seat 15 for placing a container is arranged right below the extraction unit 3.

The body 1 has a flat columnar structure with a height dimension and a left-right dimension larger than a front-rear dimension. The heating water supply unit 2, the bean grinding device 4 and the powder pressing device are arranged in the housing 10 in order in the left-right direction.

Referring to fig. 5, the heating water supply unit 2 is in fluid communication with the extraction unit 3. Specifically, the heating water supply unit 2 is located at the left side of the inside of the casing 10, and includes a water tank 21 and a heating component 22 located below the water tank 21, where the heating component 22 may adopt an existing boiler structure for heating water, and an inlet of the heating component is communicated with the water tank 21 through a corresponding pipeline, and an outlet of the heating component is also communicated with the extraction unit 3 through a corresponding pipeline, so that heated hot water (and steam) is conveyed to the extraction unit 3, and extraction and brewing of coffee powder in the brewing box 31 are realized.

The water tank 21 includes a tank body 212 having an open top, and a second cover 211 covering the top opening of the tank body 212. The second cover 211 is exposed at the top of the cabinet 10, thereby facilitating the user to directly take down the second cover 211 at the top for water addition.

The bean grinding device 4 is positioned on the right side of the heating water supply unit 2 in the housing 10. Specifically, the bean grinding device 4 includes a bin 4 for placing coffee beans and a grinding unit for performing a grinding process on the coffee beans from the bin 41. The polishing unit includes a polishing chamber 42 and a polishing assembly 421 disposed in the polishing chamber 42, where the polishing assembly 421 may be a conventional bean polishing assembly in the prior art, specifically, the polishing assembly 421 is driven by a motor 4210 above, and the motor 4210 is located in an installation space above the polishing chamber 42. The height of the bin 41 is higher than the height of the grinding chamber 42, and the grinding chamber 42 is located at a side adjacent to the heating water supply unit 2 in the cabinet 10. A feeding channel 422 is arranged between the bottom of the bin 41 and the top (or upper part of the side wall) of the grinding chamber 42, and the grinding chamber 42 is communicated with the powder pressing chamber 16 of the powder pressing device through a powder outlet channel 423.

The right lower part of the housing 10 is provided with a mounting chamber 11 open at the side of the body 1, wherein the brewing cartridges 31 of the extraction units can be mounted into the mounting chamber 11 through the opening at the side of the body 1. The powder pressing device includes a powder pressing chamber 16 having an open lower portion, and a powder pressing head 51 provided in the powder pressing chamber 16 so as to be movable up and down. The powder compacting chamber 16 of the present embodiment is located directly above the mounting chamber 11 described above. The powder outlet passage 423 of the bean grinding device 4 extends to the lower part of the powder pressing chamber 16 and is communicated with the powder pressing chamber 16. After the brewing chamber 31 is mounted in place at the lower opening of the compacting chamber 16, the grinding device 4 is operated, the coffee powder flowing out during the grinding process can flow downwards into the brewing chamber 31 through the compacting chamber 16, and then the compacting head 51 moves downwards to compact the coffee powder in the brewing chamber 31. The structural design can realize the sequential grinding process and the powder pressing process at the same position, and simplify the process consideration. Of course, it is contemplated that the brew cartridge 31 may be removed from the extraction mounting base 30 and then filled with coffee grounds (e.g., the coffee grounds in a pod cartridge) prior to being mounted to the lower opening of the compacting chamber 16 for compacting.

In order to facilitate the manual powder pressing operation of the user, the powder pressing device of the present embodiment further includes an operation handle 52 exposed outside the outer wall of the body 1 for the user to hold, and the operation handle 52 is connected to the powder pressing head 51. The casing 10 is further provided with a vertically extending bar-shaped chute 14 at a position corresponding to the above-mentioned operating handle 52 to allow the operating handle 52 to move up and down along the bar-shaped chute 14. An elastic member 53 is further disposed in the powder pressing chamber of the machine body 1, the elastic member 53 in this embodiment is a tension spring, and a first end of the tension spring is connected to an inner wall of the powder pressing chamber 16, and a second end of the tension spring is connected to the powder pressing head 51. When the powder is pressed, the user operates the handle 52 to drive the powder pressing head 51 to move downwards, and the tension spring is stretched to accumulate potential energy. After pressing down in place, the user releases the operating handle 52, and the powder pressing head 51 can automatically reset under the action of the elastic force of the tension spring, so that the powder pressing operation is more convenient, and the use experience of the user is improved.

The powder storage box 43 for receiving the coffee powder processed by the grinding unit may be placed at the installation chamber 11 when the extraction operation of the coffee powder into the brewing chamber is not required. The coffee grounds exiting during grinding may flow downwardly through the grind chamber 16 into a lower powder cartridge 43, the cartridge 43 for storing ground coffee grounds.

The powder storage box 43 is a box body structure with an upper part open, and the powder storage box 43 is positioned below the outlet of the powder outlet channel 423 in a state that the powder storage box 43 is installed in place in the installation cavity 11. The hopper 41 and the powder storage box 43 are arranged in order in the up-down direction, wherein the grinding chamber 42 is located between the hopper 41 and the powder storage box 43 in the height direction, the grinding chamber 42 and the hopper 41 are arranged in a staggered manner in the up-down direction, specifically, the hopper 41 is arranged right and up in the casing 10. The feeding passage 422 extends obliquely from top to bottom (i.e., extends obliquely from top to bottom to left) toward the position where the grinding chamber 42 is located, and the powder discharging passage 423 extends obliquely from top to bottom (i.e., extends obliquely from top to right) toward the position where the powder storage box 43 is located.

The bin 41 of the present embodiment includes a bin body 411 having an open top, and a first cover 412 covering the top opening of the bin body 411. The first cover 412 is also exposed at the top of the casing 10, so that a user can conveniently and directly remove the first cover 412 at the top to add coffee beans.

In this embodiment, the overall size and shape of the powder storage box 43 is consistent with the overall space size and shape of the installation cavity 11, and when the powder storage box 43 is installed in place in the installation cavity 11 of the machine body 1, the exposed part of the outer peripheral wall of the powder storage box 43 at the opening of the side part of the machine body 1 is smoothly connected with the outer peripheral edge of the opening of the side part of the machine body 1, so that the installation of the powder storage box 43 is not quite abrupt, and the overall aesthetic property of the coffee machine is ensured.

Referring to fig. 3 and 10, the bottom wall of the installation cavity 11 is provided with a guide block 12 protruding upwards and having an extending direction substantially consistent with the installation direction of the powder storage box 43, and correspondingly, the bottom wall of the powder storage box 43 is provided with a guide groove 431 adapted to the guide block 12, so that when the powder discharge box is installed, stable and rapid installation can be realized by only centering the guide groove 431 of the powder storage box 43 with the guide block 12 at the bottom of the installation cavity 11 and then pushing the powder storage box 43, and convenience in assembly and disassembly of the powder storage box 43 is improved. In order to ensure the firmness of the powder storage box 43 after being installed in place, the powder storage box 43 is prevented from being easily separated from the installation cavity 11 due to touching foreign objects, the bottom wall of the installation cavity 11 of the embodiment is provided with an elastic buckle 13 which can elastically deform in the up-down direction, and the bottom wall of the powder storage box 43 is provided with an upward concave elastic clamping position 432. In a normal state, the elastic buckle 13 is slightly higher than the plane of the bottom wall of the mounting cavity 11, and a curved surface or an arc surface which facilitates the entering and exiting of the powder storage box 43 is arranged at the top. When the powder storage box 43 is pushed inwards to be installed, the bottom wall of the powder storage box 43 presses down the elastic buckle 13, and after the powder storage box 43 is pushed inwards to a set position, the elastic buckle 13 rebounds upwards and can enter the elastic clamping position 432 of the bottom wall of the powder storage box 43.

The powder pressing device of the coffee machine is independent of the extraction unit, wherein the coffee powder can be installed at the lower opening of the powder pressing cavity after being filled in the brewing box of the extraction unit for powder pressing operation, and the coffee powder in the brewing box is installed on the extraction installation seat of the extraction unit after powder pressing is completed, so that the condition that the coffee powder is damped and hardened due to the fact that water vapor in the extraction process enters the grinding device can be effectively avoided, and the use experience of a user is improved.

The term "fluid communication" as used herein refers to a spatial positional relationship between two components or parts (hereinafter collectively referred to as a first part and a second part, respectively), that is, a fluid (gas, liquid, or a mixture of both) can flow along a flow path from the first part to the second part or/and be transported to the second part, or the first part and the second part may be directly communicated with each other, or the first part and the second part may be indirectly communicated with each other through at least one third party, and the third party may be a fluid channel such as a pipe, a channel, a conduit, a flow guiding member, a hole, a groove, or the like, or a chamber allowing the fluid to flow through, or a combination thereof.

Claims (10)

1. A coffee machine with a powder compacting function, comprising:

the coffee machine comprises a machine body (1), wherein a heating water supply unit (2) and an extraction unit (3) are arranged on the machine body, the heating water supply unit (2) is in fluid communication with the extraction unit (3), the extraction unit (3) comprises an extraction mounting seat (30) and a brewing box (31) for containing coffee powder to be extracted, and the brewing box (31) is detachably connected to the extraction mounting seat (30);

the method is characterized in that: the coffee powder brewing machine is characterized in that a powder pressing device is further arranged on the machine body (1) and comprises a powder pressing cavity (16) with an open lower part and a powder pressing head (51) which can be arranged in the powder pressing cavity (16) in an up-and-down moving mode, the brewing box (31) can be connected to the open lower part of the powder pressing cavity (16), and coffee powder in the brewing box (31) can be pressed through the powder pressing head (51) in a downward moving mode.

2. The coffee machine with the powder compacting function according to claim 1, characterized in that: the powder pressing device further comprises an operating handle (52) which is exposed out of the outer wall of the machine body (1) and is held by a user, and the operating handle (52) is connected with the powder pressing head (51).

3. The coffee machine with the powder compacting function according to claim 2, characterized in that: the device also comprises an elastic piece (53), wherein the elastic piece (53) acts on the powder pressing head (51) or the operating handle (52), so that the powder pressing head (51) always has an upward moving trend.

4. The coffee machine with the powder compacting function according to claim 1, characterized in that: the coffee powder grinding device is characterized by further comprising a bean grinding device (4) arranged on the machine body (1), wherein the bean grinding device (4) is provided with a powder outlet channel (423) for discharging ground coffee powder, and the powder outlet channel (423) is communicated with the powder pressing chamber (16).

5. The coffee machine with the powder pressing function according to claim 4, characterized in that: the bean grinding device (4) comprises a storage bin (41) for placing coffee beans and a grinding unit for grinding the coffee beans from the storage bin (41), wherein the grinding unit comprises a grinding chamber (42) and a grinding assembly (421) arranged in the grinding chamber (42), a feeding channel (422) is arranged between the storage bin (41) and the grinding chamber (42), and the grinding chamber (42) is communicated with the powder pressing chamber (16) through the powder outlet channel (423).

6. The coffee machine with the powder pressing function according to claim 5, wherein: the powder outlet channel (423) is communicated with the powder pressing chamber (16) and is adjacent to the lower opening of the powder pressing chamber (16).

7. The coffee machine with the powder pressing function according to claim 5, wherein: the powder pressing device comprises a machine body (1), a powder pressing cavity (16) and a feed bin (41), wherein the feed bin (41) and the powder pressing cavity (16) are sequentially arranged on the machine body (1) from top to bottom, the feed bin (41) and the powder pressing cavity (42) are arranged in a staggered mode in the vertical direction, an inlet of a feeding channel (422) is communicated with the bottom of the feed bin (41) and extends obliquely from top to bottom towards the powder pressing cavity (42), an inlet of a powder discharging channel (423) is communicated with the bottom of the powder pressing cavity (42) and extends obliquely from top to bottom towards the powder pressing cavity (16).

8. The coffee machine with the powder compacting function of claim 7, wherein: the machine body (1) comprises a machine shell (10), wherein the heating water supply unit (2), a grinding chamber (42) of the bean grinding device (4) and a powder pressing chamber (16) of the powder pressing device are all arranged in the machine shell (10) and are sequentially arranged in the left-right direction.

9. The coffee machine with the powder pressing function according to claim 8, characterized in that: the extraction unit (3) is arranged at the middle position of the front side wall of the machine body (1) in the left-right direction.

10. The coffee machine with the powder compacting function according to claim 1, characterized in that: the machine body (1) is provided with an installation cavity (11) with an open side part corresponding to the position of the area below the powder pressing cavity (16), and the brewing box (31) can enter the installation cavity (11) through the open side part of the machine body (1) and is connected with the lower opening of the powder pressing cavity (16).