Coffee machine

Abstract

The utility model relates to the technical field of coffee machines, in particular to a coffee machine which comprises a machine frame, a barrel portion located on the machine frame, a first brewing head located on the machine frame and a linkage mechanism, the barrel portion is provided with a brewing groove with an opening in the upper end, the linkage mechanism is at least provided with a first station and a second station, and when the linkage mechanism is located at the first station, the first brewing head is located on the machine frame. When the linkage mechanism is located at the first station, the first brewing head opens the brewing groove, and when the linkage mechanism is located at the second station, the first brewing head closes the brewing groove. When the device works and the linkage mechanism moves to the first station, a worker puts raw materials for brewing coffee into the brewing groove manually or through a machine, then the linkage mechanism moves to the second station to drive the first brewing head to close the brewing groove to brew coffee, and after brewing is completed, the linkage mechanism moves to the first station again, so that the coffee is brewed. According to the device, various actions are completed through the linkage mechanism, so that the use of parts is reduced, and the structural complexity is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to coffee machine technical field especially relates to a coffee machine. BACKGROUND

[0002] With the improvement of people's life quality, people's love for coffee drinks is growing, and coffee brewing machines are gradually popularized. The higher the automation of coffee brewing machines, the more components are needed, and the damage rate of components will also increase. UTILITY MODEL CONTENTS

[0003] The utility model aims at solving the problem of more components in the prior art coffee brewing machine, and provides a coffee machine.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0005] A coffee machine, comprising a rack, a cylinder part located on the rack, a first brewing head located on the rack, and a linkage mechanism, the cylinder part has a brewing groove with an open upper end, the linkage mechanism has at least a first station and a second station, when the linkage mechanism is in the first station, the first brewing head opens the brewing groove, and when the linkage mechanism is in the second station, the first brewing head closes the brewing groove.

[0006] The linkage mechanism comprises a support shaft mounted with the rack, a transmission frame mounted with the support shaft, and a support frame movably connected with the support shaft, the first brewing head is mounted at one end of the support frame away from the support shaft, a second guide is mounted between the first brewing head and the support shaft, the second guide comprises a first part and a second part, the transmission frame is provided with a first limiting groove, the rack is provided with a third guide hole, the first part is limitingly mounted in the third guide hole, and the second part is limitingly mounted in the first limiting groove, rotating the transmission frame can make the second guide move in the first limiting groove and the third guide hole, so that the linkage mechanism moves to the first station and the second station.

[0007] The third guide hole comprises a first hole part and a second hole part communicated, the first hole part is an arc structure with the support shaft axis as the center, the second hole part is located at one end of the first hole part and extends along the support shaft radially to the support shaft direction, and the first limiting groove is arranged non-radially along the support shaft, one end of the first limiting groove is close to the support shaft, and the other end is away from the support shaft.

[0008] And / or, one end of the support frame away from the first brewing head has a second guide hole, the second guide hole is arranged along the line between the second guide and the support shaft, and the support shaft is movably limited in the second guide hole.

[0009] The rack is internally provided with a brewing mechanism, the brewing mechanism comprises a screw rod arranged axially along the cylinder portion, a second brewing head is mounted at the top end of the screw rod, the second brewing head is slidingly and sealingly installed in the brewing tank, a power guiding mechanism is arranged between the screw rod and the rack, and the power guiding mechanism can drive the screw rod to move upward or downward.

[0010] The power guiding mechanism comprises a second motor fixed to the rack, a third gear is threadedly connected to the outer circumference of the screw rod, the third gear is rotatably connected to the rack, a second gear is drivingly connected to the third gear and is mounted on the power output shaft of the second motor, a first guiding hole is formed in the screw rod along the length direction of the screw rod, and the supporting shaft penetrates through the first guiding hole and is limitingly connected to the first guiding hole.

[0011] The second brewing head comprises a first shell and a second filter element, a second mixing cavity is formed between the second filter element and the first shell, a liquid inlet channel is arranged in the screw rod, the liquid inlet channel has a second end and a first end, the second end is communicated with the brewing tank through the second mixing cavity, and the first end is communicated with a water source.

[0012] And / or, the first brewing head comprises a second shell and a first filter element, a first mixing cavity is formed between the second shell and the first filter element, a liquid outlet channel is formed in the second shell, the liquid outlet channel has a third end and a fourth end, and the fourth end can be communicated with the brewing tank through the first mixing cavity.

[0013] The rack is fixedly provided with a liquid outlet element, the liquid outlet element is communicated with the third end through a quick plug connector and a hose;

[0014] And / or, the rack is fixedly provided with a liquid inlet element, the liquid inlet element is communicated with the first end through a quick plug connector and a hose.

[0015] The coffee machine comprises a residue pushing element, the linkage mechanism further has a third station, the third station is located between the first station and the second station according to the running time, when the linkage mechanism is in the first station, the residue pushing element opens the brewing tank, and when the linkage mechanism moves from the first station to the third station, the residue pushing element passes through the top end of the brewing tank.

[0016] The rack is provided with a third sliding rail above, the residue pushing element is provided with a second sliding rail slidingly matched with the third sliding rail, the residue pushing element is provided with a first sliding rail arranged vertically, a first guide element is movably and limitingly installed on the first sliding rail, and the first guide element is assembled with the supporting frame.

[0017] And / or, the side of the rack away from the first brewing head is provided with a slide, and the residue pushing element can push waste to the slide.

[0018] And / or the pusher has a concave wall part adapted to the brewing tank, and the concave wall part is extended with a blocking ring at the end.

[0019] The linkage mechanism comprises a first motor fixed with the rack, a first gear is installed on the power output shaft of the first motor, the transmission frame has a gear part coaxially arranged with the supporting shaft, and the gear part is in meshing transmission with the transmission frame.

[0020] The coffee machine has the beneficial effect that when the linkage mechanism moves to the first station, workers manually or through the machine put the raw materials for brewing coffee into the brewing tank, then the linkage mechanism moves to the second station, drives the first brewing head to close the brewing tank for coffee brewing, and after the brewing is completed, the linkage mechanism moves to the first station again to open the brewing tank for slag discharge, the device completes multiple actions through the linkage mechanism, which is beneficial to reduce the use of parts and reduce the structural complexity. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 The utility model discloses a three-dimensional structure schematic diagram of one embodiment Figure 1 ;

[0022] Figure 2 The utility model discloses a partial three-dimensional structure schematic diagram of one embodiment Figure 1 ;

[0023] Figure 3 The utility model discloses a partial three-dimensional structure schematic diagram of one embodiment Figure 2 ;

[0024] Figure 4 The utility model discloses an internal structure schematic diagram of one embodiment Figure 1 ;

[0025] Figure 5 The utility model discloses an internal structure schematic diagram of one embodiment Figure 2 ;

[0026] Figure 6 The utility model discloses a partial sectional three-dimensional structure schematic diagram of one embodiment;

[0027] Figure 7 The utility model discloses a first brewing head structure schematic diagram of one embodiment;

[0028] Figure 8 The utility model discloses a transmission frame structure schematic diagram of one embodiment;

[0029] Figure 9 The utility model discloses a pusher structure schematic diagram of one embodiment;

[0030] Figure 10A screw structure schematic view of one embodiment of the utility model;

[0031] Figure 11 A cylinder part structure schematic view of one embodiment of the utility model;

[0032] Figure 12 A third guide hole, a first limiting slot and a second guide piece in a first station structure schematic view of one embodiment of the utility model;

[0033] Figure 13 A third guide hole, a first limiting slot and a second guide piece in a second station structure schematic view of one embodiment of the utility model;

[0034] Figure 14 A third guide hole, a first limiting slot and a second guide piece in a third station structure schematic view of one embodiment of the utility model;

[0035] Figure 15 A first station time material receiving state structure schematic view of one embodiment of the utility model;

[0036] Figure 16 A second station time sealing state structure schematic view of one embodiment of the utility model;

[0037] Figure 17 A second station time brewing state structure schematic view of one embodiment of the utility model;

[0038] Figure 18 A first station time before waste pushing out structure schematic view of one embodiment of the utility model;

[0039] Figure 19 A first station time after waste pushing out structure schematic view of one embodiment of the utility model;

[0040] Figure 20 A third station time after slag pushing out structure schematic view of one embodiment of the utility model.

[0041] In the figure: rack 1, transmission frame 2, wheel tooth part 3, first gear 4, support frame 5, first guide 6, first sliding rail 7, second sliding rail 8, push slag part 9, blocking ring 10, brewing tank 11, third sliding rail 12, landslide 13, first brewing head 14, first filter part 15, first mixing cavity 16, first motor 17, second gear 18, second motor 19, liquid inlet flow channel 20, first end 21, screw 22, third gear 23, first guide hole 24, second mixing cavity 25, second filter part 26, first limiting groove 27, second guide 28, second guide hole 29, support shaft 30, third guide hole 31, first hole part 32, second hole part 33, first part 34, second part 35, barrel part 36, liquid inlet part 37, liquid outlet part 38, liquid outlet flow channel 39, third end 40, fourth end 41, second end 42, second brewing head 43, first shell 44, second shell 45. DETAILED DESCRIPTION

[0042] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0043] Referring to Figures 1-20 A coffee machine comprises a rack 1, a barrel part 36 located on the rack 1, a first brewing head 14 located on the rack 1, and a linkage mechanism. The barrel part 36 has a brewing tank 11 with an open upper end. The linkage mechanism has at least a first station and a second station. When the linkage mechanism is in the first station, the first brewing head 14 opens the brewing tank 11. When the linkage mechanism is in the second station, the first brewing head 14 closes the brewing tank 11.

[0044] When the device is working, referring to Figure 12 , Figure 15 When the linkage mechanism moves to the first station, a worker manually or through a machine puts raw materials for brewing coffee into the brewing tank 11. Referring to Figure 13 , Figure 17 Then the linkage mechanism moves to the second station, drives the first brewing head 14 to close the brewing tank 11 for coffee brewing. After the brewing is completed, the linkage mechanism moves to the first station again to open the brewing tank 11 for slag discharge. The device completes multiple actions through the linkage mechanism, which is beneficial to reducing the use of parts and lowering the structural complexity.

[0045] As an embodiment of the linkage mechanism, referring to Figures 1-10, the linkage mechanism comprises a support shaft 30 installed with the rack 1, a transmission frame 2 installed with the support shaft 30, a support frame 5 movably connected with the support shaft 30, the first brewing head 14 is installed at one end of the support frame 5 away from the support shaft 30, the second guide 28 is installed between the first brewing head 14 and the support shaft 30, the second guide 28 comprises a first part 34 and a second part 35, the transmission frame 2 is provided with a first limiting groove 27, the rack 1 is provided with a third guide hole 31, the first part 34 is limitedly installed in the third guide hole 31, and the second part 35 is limitedly installed in the first limiting groove 27; rotating the transmission frame 2 can drive the second guide 28 to move in the first limiting groove 27 and the third guide hole 31, so that the linkage mechanism moves to the first station and the second station; the third guide hole 31 comprises a first hole part 32 and a second hole part 33 which are communicated, the first hole part 32 is an arc structure with the support shaft 30 as the center, the second hole part 33 is located at one end of the first hole part 32 and extends to the support shaft 30 along the radial direction of the support shaft 30, and the first limiting groove 27 is arranged along the non-radial direction of the support shaft 30, one end of the first limiting groove 27 is close to the support shaft 30, and the other end is away from the support shaft 30;

[0046] During work, the movement of the first station to the second station is as follows Figure 12 、 Figure 13 , the device only needs to rotate the transmission frame 2 clockwise, since the second guide 28 is fixed with the support frame 5, and the second part 35 of the second guide 28 is limited in the first limiting groove 27 of the transmission frame 2, and the first part 34 of the second guide 28 is limited in the third guide hole 31 of the rack 1, when the transmission frame 2 rotates clockwise, since the first hole part 32 is an arc structure with the support shaft 30 as the center, at this time, the transmission frame 2 drives the second guide 28 to move in the first hole part 32, realizes the rotating action of the support frame 5 around the support shaft 30, and moves the first brewing head 14 to the brewing groove 11 directly above, when the first part 34 moves from the first hole part 32 to the position of the second hole part 33, the first part 34 will be limited by the second hole part 33 and will not continue to rotate around the support shaft 30, with the continuous rotation of the transmission frame 2, since the first limiting groove 27 is arranged along the non-radial direction of the support shaft 30, one end of the first limiting groove 27 is close to the support shaft 30, and the other end is away from the support shaft 30, as follows Figure 13Therefore, the second guide 28 will make a compound motion in the second hole portion 33 and the first limiting groove 27, so that the second guide 28 moves downward along the second hole portion 33, so that the support frame 5 drives the first brewing head 14 to move downward into the brewing groove 11, and the sealing step of the first brewing head 14 and the brewing groove 11 is completed, and then the coffee brewing process can be carried out. After brewing, only the transmission frame 2 needs to be counterclockwise reversed to make the first brewing head 14 move upward and counterclockwise to the initial state. When the device works, only the transmission frame 2 needs to be forward and reverse rotated to complete the opening and closing steps of the first brewing head 14 to the brewing groove 11. The number of parts used is effectively reduced, and at the same time, since the second guide 28 only needs to move in the first limiting groove 27 and the third guide hole 31, the probability of structural damage is greatly reduced, and the motion path becomes more accurate and reliable.

[0047] Further, the end of the support frame 5 away from the first brewing head 14 has a second guide hole 29, the second guide hole 29 is arranged along the connecting line between the second guide 28 and the support shaft 30, and the support shaft 30 is movably limited in the second guide hole 29. The support shaft 30 limits the bottom end of the support frame 5, so that the support frame 5 can stably rotate and move up and down around the support shaft 30.

[0048] Reference Figure 4 、 Figure 5 、 Figure 6 、 Figure 15 The rack 1 is provided with a brewing mechanism, and the brewing mechanism comprises a screw rod 22 arranged axially along the cylindrical portion 36, and the top end of the screw rod 22 is provided with a second brewing head 43. The second brewing head 43 is slidably and sealingly installed in the brewing groove 11, and the screw rod 22 and the rack 1 are provided with a power guide mechanism. The power guide mechanism can drive the screw rod 22 to move upward or downward.

[0049] When the first brewing head 14 is located at the second station, the brewing groove 11 is closed, and the screw rod 22 is driven by the power guide mechanism to move from Figure 16 to Figure 17 , and then liquid is delivered into the brewing groove 11 to brew coffee.

[0050] As a guide implementation, the power guide mechanism comprises a second motor 19 fixed to the rack 1, a third gear 23 threadedly connected to the outer circumference of the screw rod 22, the third gear 23 being rotatably connected to the rack 1, the second motor 19 being provided with a second gear 18 in transmission connection with the third gear 23, the screw rod 22 being provided with a first guide hole 24 along the length direction, and the support shaft 30 penetrating the first guide hole 24 and being limitedly matched.

[0051] The second gear 18 is driven to rotate by the second motor 19, the third gear 23 is driven to rotate by the second gear 18, and the screw rod 22 is prevented from rotating due to the support shaft 30 penetrating through the first guide hole 24 and being limitedly matched with the first guide hole 24, and the screw rod 22 is driven to move upward or downward under the threaded action, the device adopts the screw rod 22 to drive the second brewing head 43 to move upward or downward, the structure can be compact, the diameter of the screw rod 22 can be increased, the screw rod 22 and the third gear 23 are prevented from slipping, and the stability of operation is improved;

[0052] Reference Figure 6 、 Figure 7 、 Figure 15 The second brewing head 43 comprises a first shell 44 and a second filter 26, the second filter 26 is provided with a second mixing cavity 25 relative to the first shell 44, the screw rod 22 is provided with a liquid inlet channel 20, the liquid inlet channel 20 is provided with a second end 42 and a first end 21, the second end 42 is communicated with the brewing tank 11 through the second mixing cavity 25, and the first end 21 is communicated with a water source.

[0053] When the brewing tank 11 is brewed or flushed, the first end 21 is communicated with pressure water, liquid enters the second mixing cavity 25 and the brewing tank 11 through the liquid inlet channel 20, coffee brewing and subsequent flushing work are performed, the liquid inlet channel 20 is integrated in the screw rod 22, the communication of the liquid inlet channel 20 can be completed when the screw rod 22 and the second brewing head 43 are assembled, the assembly is simple, no additional external pipeline is needed, and the structure is more miniaturized.

[0054] Reference Figure 15 、 Figure 7 The first brewing head 14 comprises a second shell 45 and a first filter 15, the second shell 45 is provided with a first mixing cavity 16 relative to the first filter 15, the second shell 45 is provided with a liquid outlet channel 39, the liquid outlet channel 39 is provided with a third end 40 and a fourth end 41, and the fourth end 41 is communicated with the brewing tank 11 through the first mixing cavity 16.

[0055] When coffee is brewed or flushed, the first brewing head 14 is closed to the brewing tank 11, fluid is sequentially communicated with the liquid inlet channel 20, the second mixing cavity 25, the brewing tank 11, the first mixing cavity 16 and the liquid outlet channel 39, and is discharged from the third end 40, the liquid outlet channel is integrated in the first brewing head 14, the assembly is simple, no additional external pipeline is needed, and the structure is more miniaturized.

[0056] The rack 1 is fixedly provided with a liquid outlet 38, the liquid outlet 38 is communicated with the third end 40 through a quick connector and a hose, and / or the rack 1 is fixedly provided with a liquid inlet 37, the liquid inlet 37 is communicated with the first end 21 through a quick connector and a hose.

[0057] The brewing assembly of the device does not need external pipeline, is convenient to disassemble and clean, and only needs to be aligned with the quick insertion position during installation.

[0058] After the coffee brewing is completed, the brewed residue needs to be discharged, as an embodiment, the coffee machine comprises a residue pushing piece 9, the linkage mechanism further has a third station, and the third station is located between the first station and the second station according to the running time; when the linkage mechanism is in the first station, the residue pushing piece 9 opens the brewing groove 11; when the linkage mechanism moves from the first station to the third station, the residue pushing piece 9 passes through the top end of the brewing groove 11.

[0059] The linkage mechanism of the device further integrates the third station, and when working, after the brewing is completed, the linkage mechanism moves to the first station, and the residue pushing piece 9 opens the brewing groove 11. Figure 18 、 Figure 19 、 Figure 20 The second brewing head 43 moves upward to push out the residue, and then the linkage mechanism moves to the third station; when the linkage mechanism moves from the first station to the third station, the residue pushing piece 9 passes through the top end of the brewing groove 11 to push the residue onto the slide 13, and the residue pushing function is completed.

[0060] The third slide rail 12 is arranged above the rack 1, the residue pushing piece 9 has the second slide rail 8 which is in sliding cooperation with the third slide rail 12, the residue pushing piece 9 has the first slide rail 7 which is vertically arranged, the first slide rail 7 movably and limitingly has the first guide piece 6, and the first guide piece 6 is assembled with the support frame 5; and / or the slide 13 is arranged on the side of the rack 1 away from the first brewing head 14, and the residue pushing piece 9 can push the waste to the slide 13.

[0061] The device only needs to operate the transmission frame 2, after the first brewing head 14 closes the brewing groove 11, the second brewing head 43 gradually rises under the driving of the second motor 19 to realize the compression of the coffee powder, and the appropriate stop position can be set through testing; after the coffee extraction is completed, the second brewing head 43 continues to rise to eject the coffee residue, and then the first motor 17 pushes the residue and resets, and finally the second motor 19 reverses, the second brewing head 43 returns to the initial position, and the whole coffee extraction process is completed.

[0062] The device has simple structure, small number of parts, stable and accurate operation, and is not easy to be damaged.

[0063] The residue pushing piece 9 has the concave wall part which is matched with the brewing groove 11, and the end of the concave wall part extends the blocking ring 10. Figure 1 The device is provided with the blocking ring 10, which is beneficial to the more accurate entry of the coffee powder into the brewing groove 11 when the coffee powder falls from top to bottom.

[0064] As a kind of movement mode of transmission frame 2, linkage mechanism includes the first motor 17 fixed with rack 1, the power output shaft of first motor 17 is equipped with first gear 4, transmission frame 2 has the gear part 3 coaxially arranged with support shaft 30, gear part 3 is engaged with transmission frame 2 transmission. First motor 17 drives first gear 4 to rotate, makes transmission frame 2 positive rotation or reverse rotation.

[0065] As an embodiment, the size of the brewing tank 11 is in the range of: depth 18mm-55mm, diameter 40mm-52mm, screw size diameter φ30mm-φ38mm, height 140mm, and support powder volume 10-35g.

[0066] Through a large number of experiments, the size of the brewing tank 11 and the screw size are optimized to better meet the optimal motor power output, water pressure reasonable brewing and other conditions. Pressure increase is a great challenge to motor power. If only the thickness is increased, the extraction of the compacted powder cake is also a great challenge. If the pressure is low, it may not penetrate the powder cake.

[0067] The above is only the preferred embodiment of the present application, but the protection scope of the present application is not limited to this. Any skilled person in the art can obtain technical solutions, concepts and designs according to the technical scheme and concept of the present application within the technical range disclosed by the present application, by equivalent replacement or change, which should be covered within the protection scope of the present application.

Claims

1. A coffee maker, characterized in that, The brewing device comprises a frame (1), a cylinder part (36) located on the frame (1), a first brewing head (14) located on the frame (1), and a linkage mechanism, the cylinder part (36) has a brewing groove (11) with an open upper end, and the linkage mechanism has at least a first working position and a second working position, when the linkage mechanism is in the first working position, the first brewing head (14) opens the brewing groove (11), and when the linkage mechanism is in the second working position, the first brewing head (14) closes the brewing groove (11).

2. A coffee maker according to claim 1, characterized in that The linkage mechanism comprises a support shaft (30) mounted on the frame (1), a transmission frame (2) mounted on the support shaft (30), and a support frame (5) movably connected to the support shaft (30), the first brewing head (14) is mounted on one end of the support frame (5) away from the support shaft (30), a second guide (28) is mounted between the first brewing head (14) and the support shaft (30), the second guide (28) comprises a first part (34) and a second part (35), the transmission frame (2) is provided with a first limiting groove (27), the frame (1) is provided with a third guide hole (31), the first part (34) is limitingly mounted in the third guide hole (31), and the second part (35) is limitingly mounted in the first limiting groove (27), rotating the transmission frame (2) can make the second guide (28) move in the first limiting groove (27) and the third guide hole (31) to make the linkage mechanism move to the first working position and the second working position.

3. A coffee maker according to claim 2, characterized in that The third guide hole (31) comprises a first hole part (32) and a second hole part (33) which are communicated, the first hole part (32) is an arc structure with the axis of the support shaft (30) as the center, the second hole part (33) is located at one end of the first hole part (32) and extends to the support shaft (30) in the radial direction of the support shaft (30), the first limiting groove (27) is arranged in the non-radial direction of the support shaft (30), one end of the first limiting groove (27) is close to the support shaft (30), and the other end is away from the support shaft (30); And / or, one end of the support frame (5) away from the first brewing head (14) is provided with a second guide hole (29), the second guide hole (29) is arranged along the line between the second guide (28) and the support shaft (30), and the support shaft (30) is movably limited in the second guide hole (29).

4. A coffee maker according to any one of claims 2-3, characterized in that The frame (1) is provided with a brewing mechanism, the brewing mechanism comprises a screw rod (22) arranged in the axial direction of the cylinder part (36), the screw rod (22) is provided with a second brewing head (43) at the top end, the second brewing head (43) is slidingly and sealingly mounted in the brewing groove (11), and a power guide mechanism is arranged between the screw rod (22) and the frame (1), the power guide mechanism can drive the screw rod (22) to move upward or downward.

5. A coffee maker according to claim 4, characterized in that The power guide mechanism comprises a second motor (19) fixed with the rack (1), a third gear (23) threadedly connected with the outer circumference of the screw rod (22), the third gear (23) being rotatably connected with the rack (1), and a second motor (19) power output shaft being provided with a second gear (18) in transmission connection with the third gear (23), the screw rod (22) being provided with a first guide hole (24) along the length direction, and the support shaft (30) penetrating through the first guide hole (24) in limiting fit.

6. A coffee maker according to claim 4, characterized in that The second brewing head (43) comprises a first shell (44) and a second filter (26), and the second filter (26) is provided with a second mixing cavity (25) with the first shell (44), the screw rod (22) is internally provided with a liquid inlet channel (20) having a second end (42) and a first end (21), the second end (42) being communicated with the brewing tank (11) through the second mixing cavity (25), and the first end (21) being communicated with a water source; And / or, the first brewing head (14) comprises a second shell (45) and a first filter (15), and the second shell (45) is provided with a first mixing cavity (16) with the first filter (15), the second shell (45) being provided with a liquid outlet channel (39) having a third end (40) and a fourth end (41), the fourth end (41) being capable of being communicated with the brewing tank (11) through the first mixing cavity (16).

7. A coffee maker according to claim 6, characterized in that The rack (1) is fixedly provided with a liquid outlet member (38) communicated with the third end (40) through a quick plug connector and a hose; And / or, the rack (1) is fixedly provided with a liquid inlet member (37) communicated with the first end (21) through a quick plug connector and a hose.

8. A coffee maker according to any one of claims 2, 3, 5, 6, 7, characterized in that, The coffee machine comprises a residue pushing member (9), and the linkage mechanism further has a third station located between the first station and the second station according to the running time, when the linkage mechanism is in the first station, the residue pushing member (9) opens the brewing tank (11), and when the linkage mechanism moves from the first station to the third station, the residue pushing member (9) passes through the top end of the brewing tank (11).

9. A coffee maker according to claim 8, characterized in that The rack (1) is provided with a third sliding rail (12) above, the residue pushing member (9) is provided with a second sliding rail (8) in sliding fit with the third sliding rail (12), the residue pushing member (9) is provided with a first sliding rail (7) vertically arranged, the first sliding rail (7) is movably and limitingly provided with a first guide member (6), and the first guide member (6) is assembled with the support frame (5); And / or, the rack (1) is provided with a slide (13) away from the first brewing head (14), and the residue pushing member (9) can push waste to the slide (13); And / or, the residue pushing member (9) is provided with a concave wall part matched with the brewing tank (11), and the concave wall part is extended with a blocking ring (10) at the end.

10. A coffee maker according to any of claims 2, 3, 5, 6, 7, 9, characterized in that The linkage mechanism comprises a first motor (17) fixed with the frame (1), a power output shaft of the first motor (17) is provided with a first gear (4), the transmission frame (2) has a gear portion (3) coaxially arranged with the supporting shaft (30), and the gear portion (3) is in meshing transmission with the transmission frame (2). And / or, the size range of the brewing tank (11) is: depth 18mm-55mm, diameter 40mm-52mm.

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