Coffee machine with automatic extraction function

Abstract

The invention discloses an automatic extraction coffee machine which comprises a machine body, the machine body is provided with a powder outlet channel, a guide channel, a first position and a second position, the powder outlet channel penetrates to the first position, and the guide channel penetrates to the second position; the bean grinding assembly is communicated with the powder outlet channel; the water outlet assembly is provided with a water outlet pipeline, and the water outlet pipeline penetrates through the guide channel. The moving assembly comprises a moving seat and a moving driving part, the moving seat is provided with a first connecting part, and the moving seat reciprocates between a first position and a second position; the extraction assembly comprises an extraction bowl body, and the extraction bowl body is provided with a second connecting part; the extraction bowl body is used for being communicated with the powder outlet channel when the movable base moves to the first position, and is communicated with the water outlet pipeline when the movable base moves to the second position. The mobile base drives the extraction bowl body to move to the first position on the machine body for powder receiving action and then move to the second position for coffee extraction action, and the extraction bowl body does not need to be additionally taken and placed in the middle process.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of coffee machines, in particular to an automatic extraction coffee machine. BACKGROUND

[0002] In the field of coffee beverage production, especially in the mainstream brewing methods such as espresso and hand-poured coffee, the powder pressing operation is a key step after the coffee powder is loaded. The core purpose is to compact the loose coffee powder into a uniform and dense cake to ensure that hot water can uniformly penetrate the powder layer during brewing, avoiding the problem of local over-extraction or under-extraction, thereby ensuring the balance of coffee flavor and stable taste. In the related art, when coffee extraction is performed, after the coffee beans are ground into coffee powder by the coffee machine's grinding structure, the extraction bowl body of the extraction assembly is assembled to the powder outlet position of the coffee machine, and the powder outlet channel is guided into the extraction bowl body of the extraction structure of the coffee machine.

[0003] Thereafter, the extraction bowl body is removed, and if the powder pressing action is required, the operator needs to hold a special powder pressing device (usually a circular metal pressing hammer) to press the coffee powder in the powder bowl by applying pressure with the arm. After the powder pressing action is completed, the extraction bowl body of the extraction assembly is assembled into the water outlet position of the coffee machine to achieve extraction of the pressed coffee powder.

[0004] Firstly, in the related art, the powder pressing action is performed by a manual powder pressing hammer, and it is difficult to maintain consistent pressure. If the pressure is too small, the powder cake will be loose, and when hot water penetrates quickly, it will easily cause "channeling effect", causing some coffee powder to be over-extracted and produce a bitter taste; if the pressure is too large, the powder cake will be too dense, the hot water penetration resistance will increase, resulting in under-extraction, and the coffee flavor will be thin and the acidity will be prominent.

[0005] Secondly, when the extraction action is performed, the bowl body of the extraction assembly needs to be assembled at the powder outlet position of the coffee machine. After the powder receiving action is completed, whether or not the coffee powder needs to be compacted, the extraction bowl body needs to be removed from the coffee machine and then assembled at the water outlet position of the coffee machine to guide the water flow to the extraction bowl body for coffee brewing. This operation process requires manual removal and placement of the extraction bowl body, which is complicated and low in coffee production efficiency. SUMMARY

[0006] In order to overcome at least one of the above-mentioned deficiencies of the prior art, the present application provides an automatic extraction coffee machine, which can assemble the extraction bowl body of the extraction assembly to the moving seat, move the extraction bowl body to the first position on the machine body to perform the powder receiving action, and then move to the second position to perform the coffee extraction action. The extraction bowl body does not need to be removed and placed during the process.

[0007] The technical scheme adopted by the present application to solve the problems is: An automatic extraction coffee machine comprises, a machine body, the machine body is provided with a powder outlet channel, a guide channel, a first position and a second position, the powder outlet channel penetrates to the first position, and the guide channel penetrates to the second position; a bean grinding assembly installed on the machine body, the bean grinding assembly is in communication with the powder outlet channel; a water outlet assembly installed on the machine body, the water outlet assembly is provided with a water outlet pipeline, and the water outlet pipeline penetrates to the guide channel; a moving assembly installed on the machine body, the moving assembly comprises a moving seat and a moving driving member, the moving seat is provided with a first connecting part, and the moving seat reciprocates between the first position and the second position under the driving of the moving driving member; an extraction assembly, the extraction assembly comprises an extraction bowl, the extraction bowl is provided with a second connecting part, the second connecting part is detachably connected with the first connecting part, the extraction bowl is in communication with the powder outlet channel when the moving seat moves to the first position, and the extraction bowl is in communication with the water outlet pipeline when the moving seat moves to the second position.

[0008] As an optional embodiment, the automatic extraction coffee machine further comprises a powder pressing assembly, the powder pressing assembly comprises a guide seat, a powder pressing member and a powder pressing driving member, the guide seat is installed in the machine body, and the guide channel is arranged in the guide seat; the powder pressing member is installed in the guide channel and can reciprocate in a powder pressing direction; the powder pressing member is provided with a powder pressing end face; the powder pressing driving member is installed in the guide seat, and the powder pressing driving member is used for driving the powder pressing member to reciprocate, the powder pressing member is used for extending into or withdrawing from the extraction bowl in the powder pressing direction, and the powder pressing end face is used for compacting coffee powder in the extraction bowl after the powder pressing member extends into the extraction bowl.

[0009] As an optional embodiment, the powder pressing member is provided with a communication channel extending in the powder pressing direction; and the water outlet pipeline and the communication channel are in communication.

[0010] As an optional embodiment, the powder pressing driving member comprises a first driving motor and a driving head, the rotating shaft of the first driving motor is connected with the driving head and drives the driving head to rotate; the driving head is provided with a first transmission part, the powder pressing member is provided with a second transmission part, the first transmission part and the second transmission part are in transmission connection, and the first transmission part is used for being in transmission cooperation with the second transmission part when the driving head rotates, so as to guide the powder pressing member to move in the powder pressing direction.

[0011] As an optional implementation, the first transmission part comprises a first threaded structure, the second transmission part comprises a second threaded structure, and the first threaded structure is threadedly matched with the second threaded structure; the powder compact is provided with a first guide part, the guide seat is provided with a second guide part, and the first guide part is slidably matched with the second guide part to guide the powder compact to move in the powder compacting direction. The first threaded structure is arranged on the outer peripheral wall of the driving head, and the second threaded structure is arranged on the inner peripheral wall of the powder compact, and the driving head is rotatably penetrated in the powder compact to threadedly match the first threaded structure with the second threaded structure.

[0012] As an optional implementation, the first guide part comprises a guide block arranged on the outer peripheral wall of the powder compact, the second guide part comprises a guide groove arranged on the guide seat and extending in the powder compacting direction, and the guide block is slidably penetrated in the guide groove. The guide seat is provided with a detection switch arranged in the powder compacting direction, and the guide block is used to touch the detection switch when sliding in the guide groove; and the detection switch is used to control the powder compacting driving part to be closed.

[0013] As an optional implementation, the movement driving part comprises a second driving motor and a driving screw, the movement seat is provided with a threaded hole, the driving screw is threadedly penetrated in the movement seat and is used to guide the movement seat to reciprocate between the first position and the second position during rotation, and the second driving motor is used to drive the driving screw to rotate.

[0014] As an optional implementation, the movement seat is provided with a touch part, the first position and the second position are provided with touch switches, the touch part is used to touch the touch switches, and the touch switches are electrically connected with the second driving motor.

[0015] As an optional implementation, the movement driving part further comprises a driving gear and a driven gear, the driving screw is provided with two, the movement seat is provided with the threaded hole on both sides, the two driving screws are threadedly penetrated in the two threaded holes respectively, the driving gear is connected with the rotating shaft of the second driving motor, and the driven gear is connected with the two driving screws and is engaged with the driving gear.

[0016] As an optional implementation, the mobile seat is provided with a through slot penetrating through the top end and the bottom end of the mobile seat; a clamping groove and a clamping notch are arranged in the circumference of the through slot; the clamping groove extends along the circumference of the mobile seat; and the clamping notch is arranged at one end of the clamping groove. The side wall of the extraction bowl body is provided with a clamping block, which is clamped into the clamping notch and clamped into the clamping groove after the extraction bowl body is rotated. The first connecting part comprises the clamping groove and the clamping notch; and the second connecting part comprises the clamping block.

[0017] In summary, the present application has the following technical effects: When the coffee extraction operation is performed, the extraction bowl body only needs to be assembled to the mobile seat once, and then the extraction bowl body is moved to the first position to receive the coffee powder under the action of the mobile seat, and then the extraction bowl body is moved to the second position to perform the coffee extraction operation under the action of the mobile driving member, without the need for additional extraction bowl body taking and placing in the middle process, the powder receiving and brewing operations are continuous, and the production efficiency of coffee drinks is improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0019] Figure 1 is a structural cross-sectional view of the first use state of the present application; Figure 2 is a structural cross-sectional view of the first use state of the present application; Figure 3 is a structural cross-sectional view of the second use state of the present application; Figure 4 is a structural cross-sectional view of the second use state of the present application; Figure 5 is another perspective view of the second use state of the present application; Figure 6 is a structural cross-sectional view of the second use state of the present application; Figure 7 is a structural cross-sectional view of the second use state of the present application; Figure 8 is a structural cross-sectional view of the second use state of the present application; Figure 9The structure diagram of the second use state of the grinding assembly, the powder pressing assembly, the water outlet assembly, the moving assembly and the extraction assembly of the application; Figure 10 The structure diagram of the first use state of the grinding assembly, the powder pressing assembly, the water outlet assembly and the moving assembly of the application; Figure 11 The structure diagram of the second use state of the grinding assembly, the powder pressing assembly, the water outlet assembly and the moving assembly of the application; Figure 12 The structure diagram of the moving assembly of the application; Figure 13 The structure diagram of the moving assembly of the application from another perspective.

[0020] In the drawings, the reference signs have the following meanings: 10, machine body; 11, first position; 12, second position; 13, powder outlet channel; 14, avoiding groove; 15, water outlet pipeline; 20, grinding assembly; 30, powder pressing assembly; 31, guiding seat; 311, detection switch; 32, powder pressing piece; 321, powder pressing end face; 322, second threaded structure; 33, powder pressing driving piece; 331, first driving motor; 332, driving head; 40, moving assembly; 41, moving seat; 411, through connection groove; 412, clamping groove; 413, clamping notch; 414, touch control part; 42, moving driving piece; 421, second driving motor; 422, driving screw; 423, driving gear; 424, driven gear; 50, extraction assembly; 51, extraction bowl body; 60, water outlet assembly. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the application.

[0022] In the application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "transverse", "longitudinal" and the like indicate the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0023] And, the above-mentioned partial terms, in addition to can be used to express the orientation or position relationship, can also be used to express other meanings, for example, the term "upper" in some cases can also be used to express a certain dependent relationship or connection relationship. For those skilled in the art, the specific meaning of these terms in the present application can be understood according to the specific circumstances.

[0024] In addition, the terms "mounting", "setting", "provided with", "connecting", "connected" should be broadly understood. For example, it can be fixed connection, detachable connection, or integral structure; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or internal communication between two devices, elements or components. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0025] In addition, the terms "first", "second" and the like are mainly used to distinguish different devices, elements or components (the specific type and structure may be the same or different), and are not intended to indicate or imply the relative importance and quantity of the indicated devices, elements or components. Unless otherwise stated, the meaning of "multiple" is two or more.

[0026] The technical solutions of the present application will be further described below in conjunction with the embodiments and drawings.

[0027] Reference Figures 1-13 The present application discloses an automatic extraction coffee machine, comprising a machine body 10, a grinding assembly 20, a water outlet assembly 60, a moving assembly 40 and an extraction assembly 50, the grinding assembly 20, the water outlet assembly 60 and the moving assembly 40 are all installed in the machine body 10. The machine body 10 is provided with a powder outlet channel 13, a guide channel, a first position 11 and a second position 12, one end of the powder outlet channel 13 is in communication with the grinding assembly 20, and the other end of the powder outlet channel 13 is in communication with the first position 11. The water outlet assembly 60 is provided with a water outlet pipeline 15, and the water outlet pipeline 15 is in communication with the guide channel of the second position 12.

[0028] Specifically, the moving assembly 40 includes a moving base 41 and a moving driving member 42. The moving base 41 is provided with a first connecting portion, and is reciprocated between the first position 11 and the second position 12 under the driving of the moving driving member 42. The extraction assembly 50 includes an extraction bowl 51, which is provided with a second connecting portion. The second connecting portion is detachably connected with the first connecting portion. After the extraction bowl 51 is assembled to the moving base 41, the moving base 41 can drive the extraction bowl 51 to move between the first position 11 and the second position 12 under the driving of the moving driving member 42. The extraction bowl 51 is in communication with the powder outlet channel 13 when the moving base 41 moves to the first position 11, and is in communication with the water outlet pipe 15 when the moving base 41 moves to the second position 12.

[0029] Based on the above structure, when the automatic extraction coffee machine is used, the extraction bowl 51 of the extraction assembly 50 is connected with the first connecting portion of the moving base 41 through the second connecting portion. In this way, the extraction bowl 51 can be assembled to the moving base 41. After assembly, the moving base 41 is driven by the moving driving member 42 to move to the first position 11, so that the extraction bowl 51 is located at the first position 11 (the first use state, see Figure 1 and Figure 2 ). At this time, the powder outlet channel 13 can be communicated to the extraction bowl 51. At this time, the bean grinding assembly 20 performs a bean grinding action, and the coffee powder generated can be guided to the extraction bowl 51 through the powder outlet channel 13. After the extraction bowl 51 receives a certain amount of coffee powder, the moving driving member 42 can drive the moving base 41 to the second position 12 (the second use state).

[0030] After the moving base 41 moves to the second position 12 (the second use state, see Figure 3 , Figure 4 and Figure 5 ), the extraction bowl 51 on the moving base 41 can be communicated to the guide channel at this time. At this time, the water outlet assembly 60 of the machine body 10 is actuated, so that the water in the coffee machine flows through the water outlet pipe 15 to the guide channel, and is guided to the extraction bowl 51 through the guide channel to perform a coffee extraction action.

[0031] Compared with the prior art, when performing coffee extraction, the extraction bowl 51 needs to be assembled to the powder outlet position of the coffee machine for receiving coffee powder, and then removed after completion, and then assembled to the brewing position, which requires two disassembly and assembly processes, the coffee extraction action is discontinuous, and the coffee making efficiency is low. The coffee machine of the present application only needs to assemble the extraction bowl 51 to the moving seat 41 once, and then move the extraction bowl 51 to the first position 11 for receiving coffee powder under the action of the moving drive 42, and then move the extraction bowl 51 to the second position 12 for coffee extraction action, without the need for additional extraction bowl 51 taking and placing process in the middle process, the powder receiving and brewing actions are continuous, and the coffee beverage making efficiency is improved.

[0032] In addition, in the related art, in order to realize that the extraction bowl 51 can be assembled at the powder outlet and the brewing position of the coffee machine, a connection structure capable of disassembling the extraction bowl 51 needs to be provided at the two positions. After long-term use of the coffee machine, the connection structures at the two positions are easy to be stained with coffee powder or coffee liquid, and the connection structures are difficult to clean. However, in the present application, the moving moving seat 41 structure is provided, only the connection structure needs to be provided on the moving seat 41, and the moving seat 41 is moved to different positions to complete the powder receiving and extraction, which simplifies the structure of the powder outlet and the brewing position of the coffee machine. When cleaning the connection structure, the moving seat 41 is moved to a position convenient for cleaning by the moving drive 42, and the cleaning is convenient.

[0033] It should be noted that in the related embodiment, the first position 11 and the second position 12 are arranged at the two ends in the length direction or the two sides in the width direction of the machine body 10, and the opening structure is arranged at the first position 11 and the second position 12. The moving seat 41 can reciprocate between the two openings of the first position 11 and the second position 12, and the powder outlet channel 13 and the guide channel of the corresponding position are communicated.

[0034] In addition, in the first position 11 of the coffee machine in the embodiment, the first position 11 is located on the inner side of the machine body 10, and the second position 12 is located on the outer side of the machine body 10. The avoidance groove 14 can be arranged on the machine body 10 to avoid the extraction bowl 51 when the extraction bowl 51 is moved to the first position 11 by the moving seat 41, and prevent the extraction bowl 51 from colliding with the machine body 10 when the extraction bowl 51 is moved to the machine body 10.

[0035] As an optional embodiment, refer to Figure 1 , Figure 3 and Figure 5The automatic extraction coffee machine further comprises a powder pressing assembly 30, which comprises a guide base 31, a powder pressing member 32 and a powder pressing driving member 33. The guide base 31 is arranged inside the machine body 10, and the guide channel is arranged in the guide base 31. The powder pressing member 32 and the powder pressing driving member 33 are both mounted based on the guide base 31.

[0036] Specifically, the powder pressing member 32 is mounted in the guide channel and can reciprocate along the powder pressing direction. The powder pressing member 32 is provided with a powder pressing end face 321. The powder pressing driving member 33 is mounted on the guide base 31 and can drive the powder pressing member 32 to reciprocate. The powder pressing member 32 can extend into or exit the extraction bowl 51 along the powder pressing direction (in this embodiment, the powder pressing direction is taken as the up-down direction for example). The powder pressing end face 321 is used to compact the coffee powder in the extraction bowl 51 after the powder pressing member 32 extends into the extraction bowl 51.

[0037] On the basis of the above structure, after the extraction bowl 51 on the moving base 41 receives the coffee powder at the first position 11, the extraction bowl 51 can be moved to the second position 12 under the driving of the moving driving member 42. The extraction bowl 51 can correspond to the guide channel at the second position 12. At this time, the powder pressing driving member 33 can be started first. The powder pressing driving member 33 can drive the powder pressing member 32 to move up and down. The powder pressing member 32 can extend into the extraction bowl 51 when moving downward. The powder pressing end face 321 of the powder pressing member 32 can be in contact with the coffee powder in the extraction bowl 51 to compact the coffee powder in the extraction bowl 51. During the reciprocation, the coffee powder in the extraction bowl 51 is gradually compacted into a powder layer with uniform thickness, so as to reduce the air bubbles in the coffee powder.

[0038] After the coffee powder in the extraction bowl 51 is compacted, the water outlet assembly 60 is started. The water flow in the coffee machine can be guided to the guide channel through the water outlet pipeline 15, guided to the extraction bowl 51 through the guide channel, and introduced into the extraction bowl 51 to brew the compacted powder layer. The powder cake has uniform density and compact structure, which can force the hot water to uniformly penetrate the coffee powder, ensure that the soluble substances in the coffee are evenly extracted, and avoid local flavor imbalance.

[0039] In this application, the powder pressing member 32 is driven to reciprocate by the powder pressing driving member 33. Since the driving force applied by the powder pressing driving member 33 to the powder pressing member 32 each time is controllable, the force applied by the powder pressing member 32 to the coffee powder in the extraction bowl 51 each time is balanced and consistent. The force for compacting the coffee powder can be controlled. The powder pressing force is balanced, so that the coffee powder layer formed will not be too loose or locally thick, and the extraction effect is better. In addition, the inconvenience caused by manual operation can be reduced, and the operation is more convenient.

[0040] As an optional implementation, the powder pressing member 32 is provided with a guide passage extending in the powder pressing direction, and when the powder pressing direction is the up-down direction, the extension direction of the guide passage is the up-down direction, so that the water outlet pipe 15 is in communication with the guide passage, and the water flow of the water outlet pipe 15 enters the guide passage and flows from top to bottom into the extraction bowl 51. In this way, the water outlet pipe 15 is in communication with the guide passage of the powder pressing member 32, the water outlet pipe 15 can be inserted into the guide passage, and the water outlet pipe 15 slides relative to the guide passage during the up-down movement of the powder pressing member 32, so that the water outlet pipe 15 is not pulled during the up-down movement of the powder pressing member 32.

[0041] If the water outlet pipe 15 is directly connected to the guide passage, a space must be reserved in the guide passage for the water outlet pipe 15 to access, so that the water outlet pipe 15 is easily pulled during the up-down movement of the powder pressing member 32, making the subsequent coffee brewing water outlet position uncertain. In the case of too high water outlet position, coffee liquid splashing may occur, and in the case of too low water outlet position, water pipe powder sticking may occur. In the embodiment, the water outlet pipe 15 is connected to the guide passage fixedly arranged on the powder pressing member 32, and the water outlet position of the guide passage will not be unstable due to the movement of the water outlet pipe 15, that is, the water outlet position is relatively stable each time, and coffee brewing is not prone to coffee liquid splashing or powder sticking.

[0042] As an optional implementation, the powder pressing driving member 33 includes a first driving motor 331 and a driving head 332, the rotating shaft of the first driving motor 331 is connected with the driving head 332 and drives the driving head 332 to rotate; the driving head 332 is provided with a first transmission part, and the powder pressing member 32 is provided with a second transmission part, the first transmission part and the second transmission part are transmissionally coupled, and the first transmission part is used for transmissionally matching with the second transmission part when the driving head 332 rotates, so as to guide the powder pressing member 32 to move in the powder pressing direction.

[0043] On the basis of this structure, when the powder pressing member 32 is driven, the first driving motor 331 is rotated, the rotating shaft of the first driving motor 331 drives the driving head 332 to rotate, and the first transmission part on the driving head 332 can be transmissionally matched with the second transmission part on the powder pressing member 32, so that the rotating movement of the driving head 332 can be transmitted by the first transmission part and the second transmission part, and the powder pressing member 32 moves up and down to realize the powder pressing action.

[0044] As an optional implementation, the first transmission part comprises a first threaded structure, the second transmission part comprises a second threaded structure 322, the first threaded structure is threadedly matched with the second threaded structure 322, the powder pressing member 32 is provided with a first guide part, the guide seat 31 is provided with a second guide part, the first guide part is slidably matched with the second guide part to guide the powder pressing member 32 to move in the powder pressing direction. In this way, when the driving block rotates, the first threaded structure can be threadedly matched with the second threaded structure 322 of the powder pressing member 32, and the rotating movement of the powder pressing member 32 can be converted into up and down movement in the powder pressing direction by the sliding matching of the first guide part and the second guide part, that is, the powder pressing member 32 is driven to move up and down in a threaded rotating manner, and the movement state is stable.

[0045] More specifically, the first threaded structure is arranged on the outer peripheral wall of the driving head 332, the second threaded structure 322 is arranged on the inner peripheral wall of the powder pressing member 32, and the driving head 332 is rotatably penetrated in the powder pressing member 32 to threadedly match the first threaded structure with the second threaded structure 322. In this way, the driving head 332 and the powder pressing member 32 are threadedly matched in a sleeved manner, and after assembly, the powder pressing member 32 is not prone to deflection during up and down movement, and the movement state is stable.

[0046] As an optional implementation, the first guide part comprises a guide block arranged on the outer peripheral wall of the powder pressing member 32, the second guide part comprises a guide groove arranged on the guide seat 31 and extending in the powder pressing direction, and the guide block is slidably penetrated in the guide groove. In this way, when the first threaded structure of the driving head 332 is assembled and matched with the second threaded structure 322 of the powder pressing member 32, the rotating movement of the powder pressing member 32 is limited by the sliding matching of the guide block and the guide groove, and is further converted into up and down movement.

[0047] As an optional implementation, the brewing seat is provided with a detection switch 311 arranged in the powder pressing direction. In this way, when the guide block slides along the guide groove, the guide block touches the detection switch 311. The detection switch 311 can be arranged at both ends of the guide groove. When the powder pressing member 32 moves upward to the highest position, the detection switch 311 can be touched. At this time, the detection switch 311 can control the powder pressing driving member 33 to be closed, and the powder pressing member 32 is returned to the original position. If the detection switch 311 is arranged at the other end of the guide groove, the detection switch 311 can also be touched when the powder pressing member 32 moves downward to the lowest position, and the powder pressing driving member 33 can also be controlled to be closed in time. In this way, the movement stroke of the powder pressing member 32 can be controlled.

[0048] Of course, the first transmission part and the second transmission part can also be selected as a gear and a rack to transmit power. The rotating shaft of the first driving motor 331 drives the gear on the driving head 332 to rotate, and further drives the rack meshed with the gear to move up and down.

[0049] As an optional implementation, refer to Figure 1 、 Figure 3 、 Figure 12 and Figure 13 The moving driver 42 comprises a second driving motor 421 and a driving screw 422, and the moving seat 41 is provided with a threaded hole. The driving screw 422 is rotatably installed on the body 10, and the moving seat 41 is slidably assembled on the body 10. Specifically, the driving screw 422 is threaded into the threaded hole of the moving seat 41. When the second driving motor 421 drives the driving screw 422 to rotate, the driving screw 422 can guide the moving seat 41 to reciprocate between the first position 11 and the second position 12.

[0050] That is, the moving seat 41 is moved by the second driving motor 421 driving the driving screw 422 to cooperate with the threads of the threaded hole of the moving seat 41. The threaded transmission has high precision and can accurately drive the moving seat 41 to the first position 11 or the second position 12. After the moving seat 41 is moved to the position, the moving seat 41 is not easy to shake during the extraction brewing or powder receiving action due to the restriction of the threads, and the use process is more stable.

[0051] As an optional implementation, the moving seat 41 can be provided with a touch part 414, and the first position 11 and the second position 12 are provided with touch switches. The touch part 414 is used to touch the touch switch, and the touch switch is electrically connected with the second driving motor 421. On this basis, when the moving seat 41 drives the extraction bowl 51 to move to the first position 11, the touch part 414 on the moving seat 41 can trigger the touch switch. After the touch switch is triggered, a signal can be sent, and the second driving motor 421 can stop according to the trigger signal. Thus, the moving seat 41 can stop at the first position 11. It should be noted that the position of the touch part 414 triggering the touch switch can be set as that the extraction bowl 51 just corresponds to the powder outlet passage 13 of the first position 11 to prevent the powder leakage due to misalignment.

[0052] Similarly, when the moving seat 41 drives the extraction bowl 51 to move to the second position 12, the touch part 414 on the moving seat 41 can trigger the touch switch. After the touch switch is triggered, a signal can be sent, and the second driving motor 421 can stop according to the trigger signal. Thus, the moving seat 41 can stop at the second position 12. It should be noted that the position of the touch part 414 triggering the touch switch can be set as that the extraction bowl 51 just corresponds to the powder outlet passage 13 of the second position 12 to prevent the water leakage due to misalignment.

[0053] It should be noted that the above-mentioned touch switch can be selected as a Hall switch in the prior art, and the touch part 414 can be selected as a magnet structure to trigger a signal with the Hall switch. Alternatively, the touch switch can be selected as a photoelectric switch or a touch sheet switch, so that the touch part 414 can be selected as a touch block or a touch sheet structure to realize signal triggering. The specific selection and setting can be made according to actual needs.

[0054] As an optional embodiment, the above-mentioned moving driving part 42 further comprises a driving gear 423 and a driven gear 424, and the driving screw 422 is provided with two; both sides of the moving seat 41 are provided with threaded holes; the two driving screws 422 are respectively threaded and connected to the two threaded holes; the driving gear 423 is connected with the rotating shaft of the second driving motor 421; both of the driving screws 422 are connected with the driven gears 424, and the driven gears 424 are engaged with the driving gear 423.

[0055] On the basis of this structure, when driving the moving seat 41, the second driving motor 421 is started, the second driving motor 421 drives the driving gear 423 to rotate, the driving gear 423 can drive the transmission gears on both sides, so as to drive the two driving screws 422 to rotate synchronously, and the two driving screws 422 can drive the moving seat 41 synchronously on both sides of the moving seat 41. In this way, the driving force received by the moving is stable, and the tilting or skewing during the moving process is prevented, and the moving process is more stable.

[0056] Of course, the above-mentioned moving driving part 42 can also be selected as an electric push rod or a cylinder driving structure in the prior art.

[0057] As an optional embodiment, in order to facilitate the disassembly and assembly of the extraction bowl 51 and the moving seat 41, the moving seat 41 is provided with a through channel 411, which penetrates through the top end and the bottom end of the moving seat 41. In this way, when the moving seat 41 moves to the first position 11, the through channel 411 can be in communication with the powder outlet channel 13 of the first position 11, and when the moving seat 41 moves to the second position 12, the through channel can be in communication with the guide channel of the second position 12. After the extraction bowl 51 is assembled to the moving seat 41, it can be in communication with the through channel.

[0058] Specifically, the circumferential direction of the through slot 411 is provided with a clamping groove 412 and a clamping notch 413; the clamping groove 412 extends along the circumferential direction of the moving seat 41; the clamping notch 413 is arranged at one end of the clamping groove 412; the side wall of the extraction bowl body 51 is provided with a clamping block, the clamping block is clamped into the clamping notch 413, and after the extraction bowl body 51 is rotated, the clamping block is clamped into the clamping groove 412; in this way, when the extraction bowl body 51 is assembled, the clamping block of the extraction bowl body 51 can be correspondingly arranged in the clamping notch 413, and after the extraction bowl body 51 is clamped into the clamping notch 413 upward or downward, the clamping block is correspondingly arranged in the clamping groove 412, and the extraction bowl body 51 is rotated to clamp the clamping block into the clamping groove 412 to achieve the assembly of the extraction bowl body 51 and the moving seat 41.

[0059] After the extraction action is completed, the extraction bowl body 51 can be rotated to correspond the clamping block to the clamping notch 413, and then the extraction bowl body 51 can be removed for cleaning.

[0060] On the basis of this structure, the first connecting part includes the clamping groove 412 and the clamping notch 413, and the second connecting part includes the clamping block. Of course, the first connecting part and the second connecting part can also be matched by using the corresponding cooperation of the elastic pin and the pin hole in the prior art, or can be realized by the threaded assembly mode of the internal thread and the external thread, and the specific selection can be made according to the actual needs.

[0061] It should be noted that the bean grinding assembly 20 in the embodiment is selected as the bean grinding structure in the prior art, that is, it includes a bean bin and a cutter disc structure, the bean bin is arranged above the cutter disc structure, and the powder outlet is communicated to the lower side of the cutter disc structure. In this way, the cutter disc is rotated under the action of the motor to grind the coffee beans falling into the bean bin to achieve the grinding of the coffee powder. The specific structure of the bean grinding assembly 20 does not belong to the content to be protected by the present application, and will not be described in detail here.

[0062] Of course, the water outlet assembly 60 can include a water tank, a water pump and a heating structure. The water pump can guide the water in the water tank to the heating structure for heating, and then guide the heated water to the guide channel through the water outlet pipeline 15 for coffee brewing. Alternatively, the water in the water tank can be directly guided to the water outlet pipeline 15 for coffee brewing. In addition, the extraction assembly 50 can also be selected as the extraction bowl body 51 in the prior structure, and the extraction filter screen can be arranged on the extraction bowl body 51 to perform the coffee extraction action. The specific structure will not be described in detail.

[0063] The technical means disclosed in the present application scheme is not limited to the technical means disclosed in the above embodiments, but also includes the technical solutions composed of any combination of the above technical features. It should be noted that for ordinary skilled persons in the art, without departing from the principles of the present application, a number of improvements and refinements can be made, and these improvements and refinements are also considered to be within the protection scope of the present application.

Claims

1. An automatic coffee extraction machine, characterized in that, include, The machine body is provided with a powder dispensing channel, a guide channel, a first position, and a second position. The powder dispensing channel extends to the first position, and the guide channel extends to the second position. A coffee grinding assembly is installed on the machine body; the coffee grinding assembly is connected to the coffee powder outlet channel. A water outlet assembly is installed on the machine body; the water outlet assembly is provided with a water outlet pipe, which extends to the guide channel; A movable component is installed on the body; the movable component includes a movable base and a movable drive component, the movable base is provided with a first connecting part, and the movable base reciprocates between a first position and a second position under the drive of the movable drive component; An extraction assembly includes an extraction bowl, which has a second connecting portion that is detachably connected to a first connecting portion. The extraction bowl is configured to communicate with the powder outlet channel when the movable seat moves to the first position, and to communicate with the water outlet pipe when the movable seat moves to the second position.

2. The automatic extraction coffee machine according to claim 1, characterized in that, The automatic extraction coffee machine also includes a tamping unit. The tamping assembly includes a guide seat, a tamping component, and a tamping drive. The guide seat is installed inside the machine body, and the guide channel is located inside the guide seat. The tamping component is installed in the guide channel and can reciprocate along the tamping direction. The tamping component is provided with a tamping end face. The tamping drive is installed on the guide seat and is used to drive the tamping component to reciprocate. The tamping component is used to extend into or out of the extraction bowl along the tamping direction, and the tamping end face is used to compact the coffee powder in the extraction bowl after the tamping component extends into the extraction bowl.

3. The automatic extraction coffee machine according to claim 2, characterized in that, The powder pressing component is provided with a guiding channel, which extends along the powder pressing direction; the water outlet pipe is connected to the guiding channel.

4. The automatic extraction coffee machine according to claim 2, characterized in that, The powder pressing drive includes a first drive motor and a drive head. The shaft of the first drive motor is connected to the drive head and drives the drive head to rotate. The drive head is provided with a first transmission part, and the powder pressing component is provided with a second transmission part. The first transmission part and the second transmission part are connected in a transmission manner. The first transmission part is used to cooperate with the second transmission part in a transmission manner when the drive head rotates, so as to guide the powder pressing component to move along the powder pressing direction.

5. The automatic extraction coffee machine according to claim 4, characterized in that, The first transmission part includes a first threaded structure, and the second transmission part includes a second threaded structure. The first threaded structure and the second threaded structure are threadedly engaged. The powder pressing component is provided with a first guide part, and the guide seat is provided with a second guide part. The first guide part and the second guide part are slidably engaged to guide the powder pressing component to move in the powder pressing direction. The first threaded structure is disposed on the outer peripheral wall of the drive head; the second threaded structure is disposed on the inner peripheral wall of the powder pressing component, and the drive head is rotatably connected to the powder pressing component so that the first threaded structure and the second threaded structure are threadedly engaged.

6. The automatic extraction coffee machine according to claim 5, characterized in that, The first guiding part includes a guiding block disposed on the outer peripheral wall of the powder pressing component; the second guiding part includes a guiding groove disposed on the guiding seat and extending along the powder pressing direction; the guiding block slidably passes through the guiding groove. A detection switch is provided on the guide seat and is located in the powder pressing direction. The guide block is used to touch the detection switch when sliding along the guide groove. The detection switch is used to control the powder pressing drive to close.

7. The automatic extraction coffee machine according to any one of claims 1-6, characterized in that, The moving drive component includes a second drive motor and a drive screw. The moving seat is provided with a threaded through hole. The drive screw is threaded through the moving seat and guides the moving seat to reciprocate between the first position and the second position during rotation. The second drive motor drives the drive screw to rotate.

8. The automatic extraction coffee machine according to claim 7, characterized in that, The movable base is provided with a touch unit, and touch switches are provided at both the first and second positions. The touch unit is used to touch the touch switches, and the touch switches are electrically connected to the second drive motor.

9. The automatic extraction coffee machine according to claim 7, characterized in that, The moving drive component also includes a driving gear and a driven gear, and two driving screws are provided; threaded holes are provided on both sides of the moving base; the two driving screws are respectively threaded through the two threaded holes; the driving gear is connected to the shaft of the second drive motor; the two driving screws are each connected to the driven gear, and the driven gear meshes with the driving gear.

10. The automatic extraction coffee machine according to any one of claims 1-6, characterized in that, The movable base is provided with a through slot, which extends to the top and bottom of the movable base; the through slot is provided with a snap-fit ​​groove and a snap-fit ​​notch in the circumferential direction; the snap-fit ​​groove extends along the circumferential direction of the movable base; the snap-fit ​​notch is provided at one end of the snap-fit ​​groove; The side wall of the extraction bowl is provided with a snap-fit ​​block, which is snapped into the snap-fit ​​notch and snapped into the snap-fit ​​groove after the extraction bowl rotates. The first connecting part includes the snap-fit ​​groove and the snap-fit ​​notch; the second connecting part includes the snap-fit ​​block.

Images