CN112107226A

CN112107226A - Full-automatic coffee machine

Info

Publication number: CN112107226A
Application number: CN202011001250.9A
Authority: CN
Inventors: 李昆娟
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-09-22
Filing date: 2020-09-22
Publication date: 2020-12-22

Abstract

The invention discloses a full-automatic coffee machine, belonging to the technical field of small household appliances, comprising a shell; a filter cup, a grinding component and a water tank are arranged in the shell; a charging barrel is fixedly connected in the shell; a feeding assembly for conveying the coffee beans in the material cylinder to the grinding assembly is arranged in the shell; an air pump for pressurizing the water tank to supply water into the filter cup is fixedly connected in the shell; the air inlet of the air pump is communicated with the interior of the charging barrel. The coffee bean storage device has the coffee bean storage function, and a low-pressure and low-oxygen environment can be formed in the charging barrel, so that the storage time of coffee beans is prolonged; the automatic feeding device has an automatic feeding function, and can automatically add coffee beans into the conical grinding hopper according to the coffee demand; possess the clean function of filter screen, can self-cleaning filter screen for the residue that is not dissolved is washed away, makes the filter screen filter the smoothness all the time. The automatic process is mostly adopted, and the functions of grinding coffee, making coffee, cleaning and the like are automatically completed through the touch panel selection function.

Description

Full-automatic coffee machine

Technical Field

The invention relates to the technical field of small household appliances, in particular to a full-automatic coffee machine.

Background

Chinese patent document No. CN104586257B discloses a coffee machine, which includes a housing 1, a grinding device 2, a brewing device 3, a constant temperature coffee storage tank 4, a water storage heating tank 5, a rotating device 6, a finished coffee outlet 7, a water inlet 8, a coffee bean inlet 9, wherein the water inlet 8 is respectively communicated with the brewing device 3 and the water storage heating tank 5, the coffee bean inlet 9 is communicated with the grinding device 2, the outlet of the grinding device 2 is communicated with the brewing device 3, the outlet of the brewing device 3 is communicated with the constant temperature coffee storage tank 4, the constant temperature coffee storage tank 4 is communicated with the finished coffee outlet 7, and the rotating device 6 drives the grinding device 2 to rotate. The coffee machine provided by the invention is composed of heavy components, the brewing device, the grinding device and the cup warmer which are assembled by detachable components, and the connection structure among the components is simple, so that the coffee machine can be detached independently and cleaned. The grinding device is a multi-layer blade which can grind coffee beans more thoroughly. The brewing device adopts double-layer filtering, so that the coffee powder can be brewed more fully.

The above patent all needs to add coffee beans when using the coffee machine at every turn, and the use is inconvenient, and the coffee beans do not seal when externally storing, and the coffee beans also very easily go bad, influence the taste of drinking.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: to the not enough of prior art existence, provide one kind and possess coffee beans low pressure storage environment to can add the full-automatic coffee machine of coffee beans to grinder automatically.

In order to realize the purpose of the invention, the following technical scheme is adopted for realizing the purpose: a full-automatic coffee machine comprises a shell; the coffee grinder is characterized in that a filter cup used for mixing coffee powder and water, a grinding assembly located above the filter cup and used for grinding coffee beans and placing the coffee powder in the filter cup, and a water tank located above the filter cup and used for supplying water to the filter cup are installed in the shell.

A cartridge for containing coffee beans is fixedly connected in the shell; a feed assembly is mounted within the housing for transporting coffee beans within the cartridge to the grinding assembly.

An air pump for pressurizing the water tank to supply water into the filter cup is fixedly connected in the shell; and the air inlet of the air pump is communicated with the interior of the charging barrel.

As a preferable scheme: the feeding assembly comprises a material bearing plate in the charging barrel in a sealing threaded connection mode, a discharging cover in the upper end of the charging barrel in a sealing rotation mode, and an inserting pipe which is connected to the central position in the charging barrel in a rotating mode and used for driving the material bearing plate and the discharging cover to rotate.

An upper air exhaust opening communicated with the insertion pipe is formed in the charging barrel on the outer wall of the insertion pipe close to the upper end of the insertion pipe; the insertion pipe is communicated with an air inlet of the air pump; when the air pump is working, a coffee bean storage environment of low pressure and low oxygen can be formed in the cartridge.

A discharge hole communicated with the interior of the charging barrel is formed in the outer wall of the discharge cover; an elastic separation blade capable of sealing the discharge hole is fixedly connected to the outer wall of the discharge cover; in an initial state; the elastic baffle plate enables the discharge hole to be sealed.

A spiral driving sheet is formed at the lower end of the discharging cover; when the insertion pipe rotates, the coffee beans which are abutted against the spiral driving sheet can be extruded out of the discharge port under the rotating guide of the spiral driving sheet, and meanwhile, the material bearing plate moves upwards along the charging barrel under the screw thread guide effect.

An annular blanking slope is formed at the upper part of the outer wall of the charging barrel; when coffee beans are extruded from the discharge port, the coffee beans can fall along the blanking slope into the grinding assembly. The feeding assembly further comprises a feeding motor which is fixedly connected in the shell and can drive the insertion pipe to rotate.

As a preferable scheme: a pressure release valve communicated with the charging barrel in a one-way mode is arranged at the upper end of the discharging cover; the water tank is communicated with an air outlet of the air pump; an instant water heater which is communicated with the water tank and used for heating water is fixedly connected in the shell; the instant water heater adds water into the filter cup.

When the air pump starts to operate, air in the cartridge is drawn into the water tank, so that the water tank supplies water to the outside. When the air pressure in the material cylinder is lower than a set value, external air enters the material cylinder through the pressure release valve.

As a preferable scheme: a mixing frame is fixedly connected in the shell above the filter cup; a water outlet channel communicated with the instant water heater and a coffee powder discharging channel communicated with the grinding assembly are formed at the lower end of the mixing frame; the lower ends of the water outlet channel and the coffee powder discharging channel are both positioned at the non-circle center position right above the filter cup.

The filter cup is rotatably connected in the shell; the rotating shaft of the filter cup is arranged along the longitudinal direction; and a driving motor for driving the filter cup to rotate is arranged in the shell.

As a preferable scheme: the drive motor is capable of driving the grinding assembly to grind coffee beans.

As a preferable scheme: the grinding assembly includes an annular electronic scale fixedly attached within the housing for weighing coffee beans entering the grinding assembly.

As a preferable scheme: two turnover gears are symmetrically formed in the middle of the side wall of the filtering cup; the overturning gear can enable the filtering cup to horizontally overturn along a rotating shaft arranged transversely; the shell is internally provided with a turnover frame which is positioned at the outer side of the filter cup and can turn the filter cup.

The upper ends of the turnover frames are respectively formed with turnover racks in transmission connection with the corresponding turnover gears; when the turnover frame slides upwards to the limit position, the filter cup is turned for half a circle.

A sewage discharge assembly for receiving sewage is arranged in the shell and is positioned under the filter cup; the pollution discharge assembly comprises a pollution discharge shell which is longitudinally connected in the shell in a sliding mode and can enable the turnover frame to move upwards and a pollution discharge motor used for driving the pollution discharge shell to move upwards.

As a preferable scheme: the sewage discharge assembly also comprises a sewage containing drawer which is transversely connected in a sliding manner in the sewage discharge shell and can be positioned right below the filter cup and used for containing sewage, and two sewage discharge baffle plates which are transversely connected in the sewage discharge shell and are positioned right above the sewage containing drawer in a sliding manner; the upper end of the sewage discharge shell is positioned under the filter cup, and a sewage discharge port communicated with the sewage containing drawer is formed. When the sewage discharge shell is positioned at the lower end limit position, the sewage discharge baffle abuts against the sewage discharge baffle to enable the sewage discharge port to be closed.

Two sliding grooves which are horizontally arranged are formed in one side, facing the shell, of the sewage discharge shell; two guide rails which are symmetrically arranged are formed on one side of the shell, which faces the sewage discharge shell; the distance between the upper ends of the two guide rails is larger than that between the lower ends of the two guide rails, and sliding columns which are simultaneously connected with the sliding grooves and the guide rails in a sliding mode are formed on the sewage discharge baffle plate in a sliding mode.

When the sewage discharging shell slides upwards to the limit position, the sliding column slides along the sliding groove and the guide rail at the same time, so that the sewage discharging baffle moves back to back, and the sewage discharging port is opened.

Compared with the prior art, the invention has the beneficial effects that: according to the coffee bean storage device, the elastic blocking piece is arranged, when coffee beans are stored, the elastic blocking piece is tightly abutted with the outer wall of the discharging cover in a sealing manner, so that the discharging hole is sealed, air in the charging barrel can be pumped out, a low-pressure and low-oxygen environment is formed in the charging barrel, and the storage of the coffee beans is facilitated; when coffee is brewed, the coffee beans in the material cylinder can move outwards under the driving of the spiral driving piece, then the elastic blocking piece is extruded, the elastic blocking piece is elastically deformed, and the coffee beans are extruded out from the discharge hole, so that the purpose of automatic feeding is achieved.

According to the coffee bean grinder, the driving motor is arranged, the grinding gear b on the driving motor rotates, so that the grinding gear b can rotate, and the grinding head is driven to grind coffee beans; meanwhile, the brewing gear b on the driving motor rotates, the brewing gear a can rotate, the filter cup further rotates, and coffee powder generated by grinding can be uniformly dispersed at the bottom of the filter cup.

According to the invention, by arranging the filter cup, when the roll-over stand is positioned at the lower end limit position, the filter screen is positioned below, coffee powder and hot water positioned at the upper part of the filter screen can be brewed, and then coffee falls into the coffee cup through the filter screen, so that the coffee powder is fully brewed, and the insoluble residues of the coffee powder cannot be drunk; when the roll-over stand moved to upper end extreme position, thereby upset rack and the meshing of upset gear make the upset rack shift up the in-process and make the upset gear rotate to the filter screen and be located the top, wash by water from its top, can make the coffee grounds that are not dissolved washed away to guaranteed the clean of filter screen, even had the filtration smoothness of filter screen.

The air pump can pump out the air in the cylinder, so that the cylinder is kept in a low-pressure and low-oxygen state, and the storage time of the coffee beans can be prolonged; meanwhile, the air pump can inflate the water tank, so that water in the water tank flows out of the water outlet channel and is used for making coffee and cleaning the filter screen.

According to the coffee bean discharging device, the feeding motor is controlled to rotate, so that the inserting pipe drives the discharging cover to rotate, coffee beans are extruded out of the discharging hole, meanwhile, the inserting pipe can drive the material bearing plate to gradually move upwards, the space between the material bearing plate and the discharging cover is reduced, and the volume of air extracted each time can be reduced.

The coffee bean storage device has the coffee bean storage function, and a low-pressure and low-oxygen environment can be formed in the charging barrel, so that the storage time of coffee beans is prolonged; the automatic feeding device has an automatic feeding function, and can automatically add coffee beans into the conical grinding hopper according to the coffee demand; the filter screen cleaning device has a filter screen cleaning function, can automatically clean the filter screen, and can enable undissolved residues to be washed away, so that the filter screen can filter smoothly all the time. The invention mostly adopts an automatic process, and the functions of grinding coffee, making coffee, cleaning and the like are automatically completed through the selection function of the touch panel.

Drawings

Fig. 1 is a schematic structural view of the present invention.

Fig. 2 is a schematic cross-sectional structure of the present invention.

Fig. 3 is a schematic exploded view of the present invention.

Fig. 4 is a schematic structural view of the housing of the present invention.

Fig. 5 is a sectional structural view of the housing of the present invention.

FIG. 6 is a schematic cross-sectional view of a feed assembly of the present invention.

Figure 7 is an exploded view of the abrasive assembly of the present invention.

Fig. 8 is a schematic structural view of the feeding lid of the present invention.

Fig. 9 is a schematic structural view of the driving assembly of the present invention.

Figure 10 is a schematic diagram of the brewing assembly of the present invention.

Fig. 11 is a schematic structural view of the mixing rack of the present invention.

Fig. 12 is a structural schematic view of the sewage discharging shell of the invention.

Fig. 13 is a schematic view of the structure of the soil exhaust assembly of the present invention.

Fig. 14 is a schematic view of the construction of the coffee brew of the present invention.

FIG. 15 is a schematic view of the construction of the present invention for cleaning filter cups.

FIG. 16 is a schematic view of the structure of the storage and feeding of coffee beans according to the present invention.

10. A housing; 101. a liquid outlet area; 1011. a liquid outlet; 1012. guiding the positioning hole; 1013. a through groove; 1014. a guide rail; 102. a water tank area; 103. a feeding zone; 1031. a material passing notch; 104. grinding the heating area; 1041. supporting a step; 105. a touch screen; 11. an upper cover; 12. a mixing frame; 121. a coffee powder discharge channel; 122. a water outlet channel; 123. a water pipe joint; 124. a infill panel; 13. a mounting frame; 2. a supply assembly; 21. a charging barrel; 211. an internal thread; 212. a blanking slope; 22. a material bearing plate; 221. an external thread; 222. a slide through hole; 23. a discharging cover; 231. a plug bush; 232. a discharge port; 233. a vent; 234. a screw driving piece; 24. inserting a pipe; 241. a feeding gear a; 242. an upper air extraction opening; 25. an elastic baffle plate; 26. a pressure relief valve; 27. sealing the rotating seat; 271. a lower air extraction opening; 272. sealing the rotating tube; 28. a feeding motor; 281. a feeding gear b; 3. a grinding assembly; 31. a conical grinding hopper; 32. a ring-shaped electronic scale; 33. a grinding head; 331. grinding the gear a; 4. a brewing assembly; 41. a filter cup; 411. a filter screen; 412. rotating the column; 4121. a rotating groove; 4122. turning over the gear; 42. rotating the support frame; 421. a support ear; 422. punching and adjusting a gear a; 43. a roll-over stand; 431. a turnover port; 4311. turning over the rack; 44. a push plate is arranged; 441. pushing up the block; 5. a drive assembly; 51. a drive motor; 511. punching and adjusting a gear b; 512. grinding the gear b; 52. punching and adjusting the transmission column; 521. a transmission gear a; 522. a transmission gear b; 53. a transmission gear c; 6. a blowdown assembly; 61. a blowdown shell; 611. a screw rod rotating seat; 612. a sliding groove; 613. a sewage draining outlet; 614. a drawer region; 615. a sliding groove; 62. a sewage discharge baffle plate; 621. a sliding post; 63. a dirt holding drawer; 631. a handle; 64. a screw rod; 641. a synchronizing wheel; 642. a sewage draining gear a; 65. a sewage discharging motor; 651. a sewage discharge gear b; 66. a synchronous belt; 70. a water tank; 701. a pressurizing port; 71. a water injection rubber plug; 72. a water outlet pipe; 8. an instantaneous water heater; 9. an air pump.

Detailed Description

Example 1

Referring to fig. 1 to 16, the fully automatic coffee maker of the present embodiment includes a housing 10; mounted within the housing 10 is a filter cup 41 for mixing ground coffee with water, a grinding assembly 3 above the filter cup 41 for grinding coffee beans and placing ground coffee within the filter cup 41, and a water tank 70 above the filter cup 41 for providing water into the filter cup 41.

A cartridge 21 for containing coffee beans is fixedly connected in the housing 10; mounted in the housing 10 is a feed assembly 2 for feeding coffee beans in the cartridge 21 to the grinding assembly 3.

An air pump 9 for pressurizing the water tank 70 and supplying water into the filter cup 41 is fixedly connected in the shell 10; the air inlet of the air pump 9 is communicated with the inside of the charging barrel 21.

A grinding heating zone 104 with an upper opening for installing the grinding assembly 3 is formed at the upper part in the shell 10; a feeding area 103 with an upper end opening for installing the feeding assembly 2 is formed at the upper part of the shell 10 behind the grinding heating area 104; an upper cover 11 for closing the grinding heating zone 104 and the feeding zone 103 is detachably attached to the upper end of the housing 10.

A liquid outlet area 101 with an opening at the front end for receiving coffee is formed at the lower part of the shell 10 below the grinding heating area 104; a water tank area 102 for installing a rear end opening of the water tank 70 is formed in the shell 10 below the liquid outlet area 101 and the material supply area 103; the water tank area 102 is fixedly connected above the water tank 70 with a mounting rack 13 for mounting the air pump 9.

A touch screen 105 is arranged on the outer wall of the shell 10 above the liquid outlet area 101; a control module is fixedly connected in the shell 10; the air pump 9 and the touch screen 105 are electrically connected with the control module.

The feeding assembly 2 comprises a material bearing plate 22 in the charging barrel 21 in a sealing threaded connection mode, a discharging cover 23 in the upper end of the charging barrel 21 in a sealing and rotating mode, and an inserting pipe 24 which is connected to the central position in the charging barrel 21 in a rotating mode and used for driving the material bearing plate 22 and the discharging cover 23 to rotate.

An insertion sleeve 231 capable of being in sealed insertion connection with the insertion pipe 24 is formed in the center of the lower end of the discharging cover 23; the discharging cover 23 is detachably connected to the upper end of the charging barrel 21. The outer wall of the insertion pipe 24 is of a non-circular structure; a sliding through hole 222 penetrating through the material bearing plate 22 is formed in the center of the upper end of the material bearing plate 22; the sliding through hole 222 is slidably inserted into the insertion tube 24. The inner wall of the charging barrel 21 is formed with an internal thread 211; and the side wall of the material bearing plate 22 is formed with an external thread 221 in threaded connection with the internal thread 211.

An upper air suction opening 242 communicated with the insertion pipe 24 is formed in the charging barrel 21 close to the upper end of the outer wall of the insertion pipe 24; the insertion pipe 24 is communicated with an air inlet of the air pump 9. When the air pump 9 is operated, a low-pressure and low-oxygen coffee bean storage environment can be formed in the cartridge 21.

When coffee beans are stored, the upper cover 11 and the discharging cover 23 are removed, a proper amount of coffee beans are poured into the material cylinder 21, and the discharging cover 23 and the upper cover 11 are covered. Clicking a corresponding touch button on the touch screen 105, the control module controls the air pump 9 to pump air, so that the air in the charging barrel 21 is pumped out through the upper pumping hole 242 and the insertion pipe 24 in sequence. The low pressure, low oxygen environment formed in the cartridge 21 reduces the amount of oxygen and water vapor that can degrade the coffee beans in the cartridge 21, thereby extending the storage time of the coffee beans.

A discharge hole 232 communicated with the interior of the charging barrel 21 is formed in the outer wall of the discharge cover 23; the outer wall of the discharging cover 23 is fixedly connected with an elastic baffle 25 capable of sealing the discharging hole 232; in an initial state; the elastic baffle 25 seals the discharge port 232.

A spiral driving sheet 234 is formed at the lower end of the discharging cover 23; when the inserting pipe 24 rotates, the coffee beans against the spiral driving piece 234 can be extruded out of the discharge port 232 under the rotating guide of the spiral driving piece 234, and meanwhile, the material bearing plate 22 moves upwards along the charging barrel 21 under the screw thread guide effect.

An annular blanking slope 212 is formed at the upper part of the outer wall of the charging barrel 21; when coffee beans are extruded from the discharge opening 232, the coffee beans can fall along the falling slope 212 into the grinding assembly 3. A material passing notch 1031 which can be communicated with the grinding heating zone 104 is formed at the upper part of the inner wall of the material supply zone 103; the blanking slope 212 has only one lowest point, and the lowest point is located at the material passing gap 1031; coffee beans sliding off the falling ramp 212 will enter the grinding assembly 3 through the passing notch 1031. The feeding assembly 2 further comprises a feeding motor 28 fixedly connected in the housing 10 and capable of driving the insertion tube 24 to rotate.

The feed motor 28 is electrically connected with the control module; the feeding motor 28 is fixedly connected to the upper end of the mounting frame 13; a feeding gear b281 is fixedly connected to an output shaft of the feeding motor 28; a feeding gear a241 which is in transmission connection with the feeding gear b281 is fixedly connected to the outer wall of the inserting pipe 24 close to the lower end.

A sealing rotating seat 27 is fixedly connected to the upper end of the mounting frame 13 under the insertion pipe 24; a sealing rotating pipe 272 which is in sealing and rotating connection with the inserting pipe 24 is formed at the upper end of the sealing rotating seat 27; a lower air suction opening 271 communicated with the inside of the inserting pipe 24 is formed at the lower part of the sealing rotating seat 27; and an air inlet of the air pump is communicated with the lower air pumping hole.

The control module controls the rotation of the feeding motor 28, so that the feeding gear b281 drives the feeding gear a241 to rotate synchronously, and the insertion pipe 24 rotates. The insertion pipe 24 drives the material bearing plate 22 to rotate forward, and the external thread 221 of the material bearing plate 22 slides upwards along the insertion pipe 24 under the guidance of the internal thread 211 of the cartridge 21, so that the coffee beans on the material bearing plate 22 move upwards. During the rotation of the insertion tube 24, the insertion tube 24 will also drive the insertion sleeve 231 to rotate, so that the discharging cover 23 rotates in the forward direction. When the coffee beans on the material bearing plate 22 move upwards to abut against the discharging cover 23, along with the forward rotation of the discharging cover 23, the spiral driving piece 234 stirs the coffee beans to move towards the edge of the discharging hole 232, and then the coffee beans close to the elastic blocking piece 25 elastically deform the elastic blocking piece 25, so that the coffee beans are extruded from the discharging hole 232. And then falls onto the blanking slope 212, and rolls to the material passing notch 1031 along the blanking slope 212 under the action of gravity, and then enters the grinding assembly 3.

A pressure release valve 26 communicated with the charging barrel 21 in a one-way mode is arranged at the upper end of the discharging cover 23; a vent 233 which penetrates through the discharging cover 23 and is used for installing the pressure relief valve 26 is formed at the top end of the discharging cover 23; the water tank 70 is communicated with the air outlet of the air pump 9; an instant water heater 8 which is communicated with the water tank 70 and used for heating water is fixedly connected in the shell 10; the instant water heater 8 adds water into the filter cup 41; the instant water heater 8 is electrically connected with the control module.

A water injection rubber plug 71 is detachably and hermetically connected to one side of the water tank 70 facing the outside; the water injection plug 71 is pulled out and water is injected into the water tank 70.

A pressurizing port 701 communicated with the air outlet of the air pump 9 is formed at the upper end of the water tank 70; a water outlet pipe 72 for adding water to the filter cup 41 is fixedly connected to the water tank 70 in a sealing manner; the end of the water outlet pipe 72 positioned in the water tank 70 is close to the bottom of the water tank 70; one end of the water outlet pipe 72, which is positioned outside the water tank 70, is communicated with the water inlet of the instant water heater 8.

When the air pump 9 starts to operate, air in the cartridge 21 is drawn into the water tank 70, so that the water tank 70 supplies water to the outside. When the air pressure in the material cylinder 21 is lower than a set value, external air enters the material cylinder 21 through the pressure relief valve 26. The external air passes through the cartridge 21 and then inflates the water tank 70, forming a low-pressure and low-oxygen storage environment in the cartridge 21 while the pressure is relatively constant and the water tank 70 can supply water to the outside.

A mixing frame 12 is fixedly connected in the shell 10 right above the filter cup 41; a water outlet channel 122 communicated with the instant water heater 8 and a coffee powder discharging channel 121 communicated with the grinding assembly 3 are formed at the lower end of the mixing frame 12; the lower ends of the water outlet passage 122 and the coffee powder outlet passage 121 are both located at non-circle center positions right above the filter cup 41.

A water pipe joint 123 communicated with the water outlet passage 122 is formed at the upper end of the mixing frame 12; the water pipe joint 123 is communicated with the water outlet end of the instant water heater 8 through a water pipe.

The filter cup 41 is rotatably connected in the shell 10; the rotating shaft of the filter cup 41 is arranged along the longitudinal direction; a driving motor 51 for driving the filter cup 41 to rotate is installed in the housing 10. The driving motor 51 is electrically connected with the control module.

A rotary support frame 42 with a longitudinal rotating shaft is rotatably connected to the lower part of the grinding heating area 104 in the shell 10; two supporting lugs 421 which are symmetrical about the diameter of the rotating support frame 42 are formed at the upper end of the rotating support frame 42; two rotating columns 412 which are rotatably connected with the supporting lugs 421 are symmetrically formed in the middle of the side wall of the filter cup 41; each of the rotation posts 412 has a rotation groove 4121 formed on a sidewall thereof to be rotatably coupled to the corresponding support lug 421.

An output shaft of the driving motor 51 is fixedly connected with a dash gear b 511; a brewing gear a422 in transmission connection with the brewing gear b511 is formed on the outer wall of the rotary support frame 42 close to the lower end; a brewing transmission column 52 is rotatably connected in the shell 10 and positioned in the grinding heating area 104; the upper end of the brewing transmission column 52 is fixedly connected with a transmission gear a521 in transmission connection with the brewing gear b 511; the lower end of the brewing transmission column 52 is fixedly connected with a transmission gear b522 which is in transmission connection with the brewing gear a 422.

The driving motor 51 can drive the rotating support frame 42 to horizontally rotate, and further drive the filter cup 41 to horizontally rotate. The coffee powder and the water falling into the cup can be uniformly dispersed at the bottom of the filter cup 41 along with the rotation of the filter cup 41, and the brewing process is more sufficient.

The drive motor 51 is capable of driving the grinding assembly 3 to grind coffee beans. The grinding assembly 3 comprises a conical grinding bucket 31 fixedly connected in the shell 10 and a grinding head 33 which is rotatably connected in the conical grinding bucket 31 and is used for grinding coffee beans; a grinding gear b512 is fixedly connected to an output shaft of the driving motor 51; a grinding gear a331 in transmission connection with the grinding gear b512 is formed on the outer wall of the conical grinding bucket 31 close to the lower end; a transmission gear c53 which is in transmission connection with the grinding gear a331 and the grinding gear b512 is rotatably connected in the housing 10.

A support step 1041 for supporting the mixing frame 12 is formed at the lower part of the inner wall of the grinding heating zone 104 and positioned at the lower end of the mixing frame 12; a filling plate 124 is formed at the upper end of the mixing frame 12 close to the material passing notch 1031; the infill panel 124 allows coffee beans to slide gently into the tapered grinding hopper 31.

The grinding unit 3 comprises an electronic ring scale 32 fixedly attached within the housing 10 for weighing the coffee beans entering the grinding unit 3.

The ring-shaped electronic scale 32 is capable of weighing the coffee beans falling into the conical grinding hopper 31 sufficiently to grind a cup of coffee, and the control module controls the feed motor 28 to stop rotating. Then, the control module controls the driving motor 51 to rotate, the grinding gear b512 rotates to drive the transmission gear c53 to rotate, and further drives the grinding gear a331 to rotate so that the grinding head 33 rotates, and the coffee beans falling into the conical grinding hopper 31 are ground into coffee powder during the rotation of the grinding head 33, and then fall into the filter cup 41 through the coffee powder discharging channel 121. When the driving motor 51 rotates, the brewing gear b511 rotates synchronously with the grinding gear b512, and then drives the transmission gear a521 and the transmission gear b522 in sequence, so that the brewing gear a422 rotates, and further the filter cup 41 rotates, and coffee powder falling from the coffee powder discharging channel 121 is uniformly spread to the bottom of the filter cup 41.

When the ring-shaped electronic scale 32 detects that the weight of the coffee in the conical grinding hopper 31 is not changed, the coffee beans added in the conical grinding hopper 31 are substantially completely ground. The control module then controls the air pump 9 and the instant water heater 8 to start working, the air pump 9 generates air to blow into the water tank 70 through the pressurizing port 701, so that the pressure in the water tank 70 is increased, the water in the water tank 70 is discharged outwards through the water outlet pipe 72, flows into the instant water heater 8 through the water pipe to be heated to the brewing temperature, then flows into the water pipe connector 123 through the water pipe, then flows into the filter cup 41 through the water outlet channel 122 to be mixed with coffee powder in the filter cup, and falls down into the coffee cup.

Two turnover gears 4122 are symmetrically formed in the middle of the side wall of the filter cup 41; the overturning gear 4122 can horizontally overturn the filter cup 41 along the rotation axis arranged in the transverse direction; a turning frame 43 capable of turning the filter cup 41 is longitudinally and slidably connected to the housing 10 at the outer side of the filter cup 41.

The upper ends of the turnover frames 43 are respectively formed with turnover racks 4311 in transmission connection with the corresponding turnover gears 4122; when the roll-over stand 43 is slid up to the limit position, the filter cup 41 is rolled over for half a turn.

The turnover gear 4122 is formed on the rotating column 412 outside the rotating groove 4121; the rotational axis of the reversing gear 4122 coincides with the laterally disposed rotational axis of the filter cup 41.

Two longitudinally arranged turnover openings 431 which are symmetrical about the diameter of the turnover frame 43 are formed at the upper end of the turnover frame 43; the overturning rack 4311 is formed on one side in the overturning port 431; the overturning port 431 enables the overturning rack 4311 and the overturning gear 4122 to be always in transmission connection.

A filter screen 411 is arranged at the bottom of the filter cup 41; the filter screen 411 allows the filter cup 41 to only allow liquid to pass through, and undissolved solids will remain on the upper end of the filter screen 411.

A sewage discharge assembly 6 for receiving sewage is arranged in the shell 10 and is positioned under the filter cup 41; the sewage discharging assembly 6 comprises a sewage discharging shell 61 which is longitudinally and slidably connected in the shell body 10 and can enable the overturning frame 43 to move upwards and a sewage discharging motor 65 for driving the sewage discharging shell 61 to move upwards.

The pollution discharge assembly 6 further comprises two screw rods 64 which are rotatably connected in the shell body 10 and are longitudinally arranged with rotating shafts respectively in threaded connection with the pollution discharge shell 61; screw rod rotating seats 611 which can be in transmission connection with the corresponding screw rods 64 are respectively formed on one sides, facing the two screw rods 64, of the sewage discharging shell 61; the lower ends of the two lead screws 64 are fixedly connected with synchronizing wheels 641 respectively; the two synchronizing wheels 641 are in transmission connection by a transmission belt 66 so that the two screw rods 64 rotate synchronously; the lower end of one screw rod 64 is fixedly connected with a sewage discharge gear a 642; a sewage discharging gear b651 in transmission connection with the sewage discharging gear a642 is fixedly connected to an output shaft of the sewage discharging motor 65; the sewage discharge motor 65 is electrically connected with the control module.

A plurality of push plates 44 for moving the roll-over stand 43 upwards are longitudinally and slidably connected to the lower part of the roll-over stand 43 in the shell 10; when the sewage discharging motor 65 drives the screw rod 64 to rotate, the sewage discharging shell 61 can move upwards to abut against the upper pushing plate 44 and slide upwards, the turning frame 43 is driven to slide upwards, the filter cup 41 is turned over, and at the moment, water flowing downwards in the water outlet channel 122 can flush undissolved solid impurities in the filter cup 41.

A liquid outlet 1011 for discharging coffee or clean sewage is formed at the top of the liquid outlet area 101 and is positioned under the filter cup 41; and guide positioning holes 1012 which can be longitudinally and slidably connected with the upper push plates 44 are respectively formed at the outer circumference of the liquid outlet 1011 at the top of the liquid outlet area 101.

A push-up block 441 capable of pushing the roll-over stand 43 to move upwards is formed on one side of each push-up plate 44 facing the roll-over stand 43; in the initial state, the roll-over stand 43 is located at the lower extreme position, the push-up block 441 can prevent the roll-over stand 43 from abutting against the inner bottom end of the grinding heating zone 104, and the engagement process of the impact gear a422 and the transmission gear b522 is not interfered.

The sewage discharging assembly 6 further comprises a sewage holding drawer 63 which is transversely slidably connected in the sewage discharging shell 61 and can be positioned right below the filter cup 41 and used for receiving sewage, and two sewage discharging baffles 62 which are transversely slidably connected in the sewage discharging shell 61 and are positioned right above the sewage holding drawer 63; a sewage outlet 613 which can be communicated with the sewage containing drawer 63 is formed at the upper end of the sewage discharging shell 61 and is positioned under the filter cup 41.

A handle 631 convenient for pulling out the dirt containing drawer 63 is formed on the dirt containing drawer 63; the dirt containing drawer 63 slides along the front and rear directions; a drawer area 614 with one open end and used for installing the dirt containing drawer 63 is formed in the dirt discharge shell 61; two vertical side walls of the drawer area 614 are respectively formed with a sliding groove 615 near the top end for supporting the sewage baffle plate 62; the sewage baffles 62 can slide in the corresponding slide grooves 615.

When the sewage housing 61 is at the lower extreme position, the sewage baffles 62 abut against each other to close the sewage discharge port 613. Two horizontally arranged sliding grooves 612 are formed on one side of the sewage discharging shell 61 facing the shell 10; two symmetrically arranged guide rails 1014 are formed on one side of the shell body 10 facing the sewage discharging shell 61; the distance between the upper ends of the two guide rails 1014 is larger than that between the lower ends; two through grooves 1013 for passing the screw rod rotating seat 611 are symmetrically formed on one side of the housing 10 facing the sewage discharging shell 61; the sewage trap 62 is formed with a sliding post 621 slidably connected to the sliding groove 612 and the guide rail 1014, respectively.

When the waste housing 61 slides upwards to the limit position, the sliding post 621 slides along the sliding groove 612 and the guiding rail 1014 at the same time, so that the waste blocking plate 62 moves backwards and the waste outlet 613 is opened.

The control module controls the sewage discharging motor 65 to rotate forwards, so that the sewage discharging gear b651 drives the sewage discharging gear a642 to rotate, and further the screw rod 64 provided with the sewage discharging gear a642 rotates synchronously. The two lead screws 64 rotate synchronously under the transmission connection of the transmission belt 66. The two sets of screw rod rotating seats 611 move upwards along the screw rod 64 under the rotation of the screw rod 64, and further drive the sewage discharging shell 61 to slide upwards. As the sewage housing 61 slides upwards, the sliding post 621 slides along the guide rail 1014, and the sliding post 621 moves towards both ends along the sliding groove 512 under the guiding action of the guide rail 1014, so that the sewage outlet 613 is opened. The sewage discharging shell 61 continues to move upwards, and will abut against the upper pushing plate 44 and make it move upwards synchronously, and the upper pushing block 441 will push the turning frame 43 upwards to make it slide upwards, so that the turning rack 4311 drives the turning gear 4122 to rotate, and the filter cup 41 is turned over. When the sewage discharging shell 61 moves upwards to the upper end limit position, the filter cup 41 is turned over for half a circle, at this time, the control module controls the air pump 9 to pressurize the water tank 70, water in the water tank 70 sequentially flows through the water outlet pipe 72, the instant water heater 8 (in a non-heating state) and the water pipe joint 123, and flows downwards through the water outlet passage 122 to flush the filter screen 411. The control module controls the air pump 9 to work and controls the driving motor 51 to rotate at the same time, so that the driving motor drives the brewing gear a422 to rotate, and further the filter cup 41 rotates. During the rotation of the filter cup 41, water completely washes the filter screen 411, and undissolved solids are washed away by the water and fall into the dirt holding drawer 63 right below.

In the initial state, the material receiving plate 22 is located at the lowest end of the charging barrel 21, the elastic blocking piece 25 is in sealing contact with the discharging cover 23, and the sewage discharging shell 61 is located at the lower end limit position. When the coffee bean packaging machine is used, the coffee bean packaging machine is placed on a horizontal plane, the upper cover 11 and the discharging cover 23 are taken down, a proper amount of coffee beans are poured into the material cylinder 21, the inserting sleeve 231 is inserted into the inserting pipe 24, and the discharging cover 23 and the upper cover 11 are covered. The water injection rubber plug 71 is pulled out, a proper amount of water is injected into the water tank 70, the water injection rubber plug 71 is covered again, and the product is electrified.

When the coffee bean storage function of the coffee bean storage device is used, the corresponding touch button on the touch screen 105 is clicked, and the control module controls the air pump 9 to pump air, so that air in the charging barrel 21 is pumped out sequentially through the upper pumping hole 242, the insertion pipe 24, the sealing rotating pipe 272 and the lower pumping hole 271. The low pressure, low oxygen environment formed in the cartridge 21 reduces the amount of oxygen and water vapor that can degrade the coffee beans in the cartridge 21, thereby extending the storage time of the coffee beans.

When the coffee brewing function of the coffee brewing machine is used, a coffee cup is placed under the liquid outlet 1011, the corresponding touch button on the touch screen 105 is clicked according to the concentration and the capacity of required coffee, the control module controls the feeding motor 28 to rotate, the feeding gear b281 drives the feeding gear a241 to synchronously rotate, and then the insertion pipe 24 rotates. The insertion tube 24 drives the material holding plate 22 to rotate forward, and the external thread 221 of the material holding plate 22 slides upwards along the insertion tube 24 under the guidance of the internal thread 211 of the cartridge 21, so that the coffee beans on the material holding plate 22 move upwards. During the rotation of the insertion tube 24, the insertion tube 24 will also drive the insertion sleeve 231 to rotate, so that the discharge cover 23 rotates in the forward direction. When the coffee beans on the material bearing plate 22 move upwards to abut against the discharging cover 23, along with the forward rotation of the discharging cover 23, the spiral driving plate 234 stirs the coffee beans to move towards the edge discharging opening 232, and then the coffee beans close to the elastic blocking piece 25 elastically deform the elastic blocking piece 25, so that the coffee beans are extruded from the discharging opening 232. And then falls onto the blanking slope 212 and rolls along the blanking slope 212 to the material passing gap 1031 under the action of gravity, and falls into the conical grinding hopper 31 through the filling plate 124. The ring-shaped electronic scale 32 is capable of weighing the coffee beans that fall into the conical grinding hopper 31, and the control module controls the feed motor 28 to stop rotating when the coffee beans weigh enough to grind a cup of coffee. At this time, the coffee beans located in the discharge port 232 without being extruded will be returned to the cartridge 21 again by the elastic force of the elastic baffle 25, and the elastic baffle 25 seals the discharge port 232.

Then, the control module controls the driving motor 51 to rotate, the grinding gear b512 rotates to drive the transmission gear c53 to rotate, and further drives the grinding gear a331 to rotate so as to drive the grinding head 33 to rotate, the coffee beans falling into the conical grinding hopper 31 are ground into coffee powder in the rotation process of the grinding head 33, and then fall into the filter cup 41 through the coffee powder discharging channel 121. When the driving motor 51 rotates, the brewing gear b511 rotates synchronously with the grinding gear b512, and then drives the transmission gear a521 and the transmission gear b522 in sequence, so that the brewing gear a422 rotates, and further the filter cup 41 rotates, and coffee powder falling from the coffee powder discharging channel 121 is uniformly spread to the bottom of the filter cup 41. When the weight of the coffee in the conical grinding hopper 31 is not changing as measured by the electronic ring scale 32, the coffee beans added to the conical grinding hopper 31 are substantially completely ground. The control module then controls the air pump 9 and the instant water heater 8 to start working, air generated by the air pump 9 is blown into the water tank 70 through the pressurizing port 701, so that the pressure in the water tank 70 is increased, water in the water tank 70 is discharged outwards through the water outlet pipe 72, flows into the instant water heater 8 through the water pipe, is heated to the brewing temperature, then flows into the water pipe connector 123 through the water pipe, then flows into the filter cup 41 through the water outlet passage 122, is brewed and mixed with coffee powder in the filter cup, and coffee falls down into the coffee cup through the filter screen 411. The water outlet passage 122 and the coffee powder outlet passage 1212 are both located above the filter cup 41 and deviated from the center thereof, so that the coffee powder and water falling into the cup can be uniformly dispersed at the bottom of the filter cup 41 along with the rotation of the filter cup 41, and the brewing process is more sufficient. After the brewing is finished, the control module controls the driving motor 51, the air pump 9 and the instant water heater 8 to stop working. The air outlet of the air pump 9 is communicated with the pressurizing port 701, the air inlet is communicated with the lower air suction port 271, and the air pump 9 pumps air in the charging barrel 21, so that an environment with low pressure and low oxygen is formed in the charging barrel 21, and the coffee beans are continuously stored in the low pressure and low oxygen mode. When the air pump 9 continues to pump air, the pressure relief valve 26 is opened, the external air passes through the cartridge 21 and then inflates the water tank 70, and the pressure in the cartridge 21 is relatively constant.

When the product is used for the pollution discharge function, the corresponding touch button on the touch screen 105 is clicked, the control module controls the pollution discharge motor 65 to rotate in the forward direction, the pollution discharge gear b651 drives the pollution discharge gear a642 to rotate, and then the screw rod 64 provided with the pollution discharge gear a642 rotates synchronously. Synchronizing wheels 641 are installed at the lower ends of the two screw rods 64, and the two synchronizing wheels 641 are in transmission connection through a transmission belt 66 so that the two screw rods 64 rotate synchronously, namely, the sewage discharging motor 65 drives the two screw rods 64 to rotate synchronously. The two sets of screw rod rotating seats 611 move upwards along the screw rod 64 under the rotation of the screw rod 64, and further drive the sewage discharging shell 61 to slide upwards. As the sewage housing 61 slides upward, the sliding post 621 slides along the guide rail 1014, and the distance between the upper ends of the two guide rails 1014 increases, so that the sliding post 621 moves towards both ends along the sliding groove 512 under the guiding action of the guide rail 1014, and the sewage discharge port 613 is opened. The sewage discharging shell 61 continues to move upwards, and will abut against the upper pushing plate 44 and make it move upwards synchronously, and the upper pushing block 441 will push the turning frame 43 upwards to make it slide upwards, so that the turning rack 4311 drives the turning gear 4122 to rotate, and the filter cup 41 is turned over. When the sewage discharging shell 61 moves upwards to the upper end limit position, the filter cup 41 is turned over for half a circle, at this time, the control module controls the air pump 9 to pressurize the water tank 70, and the water in the water tank 70 flows through the water outlet pipe 72, the instant water heater 8 (in a non-heating state) and the water pipe joint 123 in sequence and flows downwards through the water outlet channel 122 to flush the filter screen 411. The control module controls the air pump 9 to work and controls the driving motor 51 to rotate at the same time, so that the driving motor drives the brewing gear a422 to rotate, and further the filter cup 41 rotates. During the rotation of the filter cup 41, the filter screen 411 is completely washed by water, and the filter screen 411 only allows liquid to pass through, so that the solid which is not dissolved during the brewing process is washed away by the water and falls into the dirt holding drawer 63 right below. After the flushing is finished, the control module controls the driving motor 51 and the air pump 9 to stop working, the sewage discharging motor 65 rotates reversely, the sewage discharging shell 61 moves downwards to the initial position, and meanwhile, the sewage discharging baffle plate 62 moves inwards to close the sewage discharging port 613 again. The handle 631 is pulled outwards to take out the dirt containing drawer 63, and the sewage in the dirt containing drawer 63 is poured out and is filled back to the dirt containing drawer 63 again, so that the sewage discharging function is completed.

According to the coffee bean storage device, the elastic blocking piece 25 is arranged, when coffee beans are stored, the elastic blocking piece 25 is tightly abutted with the outer wall of the discharging cover 23 in a sealing manner, so that the discharging hole 232 is sealed, air in the charging barrel 21 can be pumped out, a low-pressure and low-oxygen environment is formed in the charging barrel, and the storage of the coffee beans is facilitated; when coffee is brewed, the coffee beans in the cylinder 21 can move outwards under the driving of the spiral driving sheet 234, and then the elastic blocking sheet 25 is extruded to be elastically deformed, so that the coffee beans are further extruded from the discharge hole 232, and the purpose of automatic feeding is achieved.

According to the coffee bean grinder, the driving motor 51 is arranged, the grinding gear b512 on the driving motor 51 rotates, so that the grinding gear b512 rotates, and the grinding head 33 is driven to grind coffee beans; at the same time, the brewing gear b511 of the driving motor 51 rotates to rotate the brewing gear a422, so that the filter cup 41 rotates, and the ground coffee powder can be uniformly spread on the bottom of the filter cup 41.

According to the invention, by arranging the filter cup 41, when the roll-over stand 43 is positioned at the lower end limit position, the filter screen 411 is positioned below, coffee powder and hot water positioned at the upper part of the filter screen 411 can be brewed, and then the coffee falls into the coffee cup through the filter screen 411, so that the coffee powder is fully brewed, and the insoluble residues of the coffee powder cannot be drunk; when the roll-over stand 43 moves to the upper end limit position, the roll-over rack 4311 is meshed with the roll-over gear 4122, so that the roll-over gear 4122 rotates to the position above the filter screen 411 during the upward moving process of the roll-over rack 4311, water is flushed from the upper part of the filter screen, undissolved coffee grounds can be flushed away, the filter screen 411 is clean, and the filter flowing through the filter screen 411 is guaranteed.

The air pump 9 in the invention can pump out the air in the material cylinder 21, so that the material cylinder 21 is kept in a low-pressure and low-oxygen state, and the storage time of the coffee beans can be prolonged; at the same time, the air pump can inflate the water tank 70, so that the water in the water tank 70 flows out from the water outlet passage 122 for making coffee and cleaning the filter screen 411.

According to the coffee bean extruding machine, the feed motor 28 is controlled to rotate, so that the inserting pipe 24 drives the discharging cover 23 to rotate, coffee beans are extruded out of the discharging hole 232, meanwhile, the inserting pipe 24 can drive the material bearing plate 22 to gradually move upwards, the space between the material bearing plate 22 and the discharging cover 23 is reduced, and the volume of air extracted each time can be reduced.

Claims

1. A full-automatic coffee machine comprises a shell; the method is characterized in that: a filter cup for mixing coffee powder and water, a grinding assembly positioned above the filter cup and used for grinding coffee beans and placing the coffee powder in the filter cup, and a water tank positioned above the filter cup and used for supplying water to the filter cup are arranged in the shell; a cartridge for containing coffee beans is fixedly connected in the shell; a feed assembly is mounted in the housing for conveying coffee beans in the cartridge into the grinding assembly; an air pump for pressurizing the water tank to supply water into the filter cup is fixedly connected in the shell; and the air inlet of the air pump is communicated with the interior of the charging barrel.

2. A fully automatic coffee machine as claimed in claim 1, characterized in that: the feeding assembly comprises a material bearing plate which is connected in the charging barrel in a sealing and threaded manner, a discharging cover which is connected at the upper end of the charging barrel in a sealing and rotating manner, and an inserting pipe which is rotatably connected at the central position in the charging barrel and is used for driving the material bearing plate and the discharging cover to rotate; an upper air exhaust opening communicated with the insertion pipe is formed in the charging barrel on the outer wall of the insertion pipe close to the upper end of the insertion pipe; the insertion pipe is communicated with an air inlet of the air pump; when the air pump works, a low-pressure and low-oxygen coffee bean storage environment can be formed in the cartridge; a discharge hole communicated with the interior of the charging barrel is formed in the outer wall of the discharge cover; an elastic separation blade capable of sealing the discharge hole is fixedly connected to the outer wall of the discharge cover; in an initial state; the elastic baffle plate enables the discharge hole to be sealed; a spiral driving sheet is formed at the lower end of the discharging cover; when the insertion pipe rotates, the coffee beans which are abutted against the spiral driving sheet can be extruded from the discharge hole under the rotating guide of the spiral driving sheet, and meanwhile, the material bearing plate moves upwards along the charging barrel under the screw thread guide effect; an annular blanking slope is formed at the upper part of the outer wall of the charging barrel; when coffee beans are extruded from the discharge port, the coffee beans can fall into the grinding assembly along the blanking slope; the feeding assembly further comprises a feeding motor which is fixedly connected in the shell and can drive the insertion pipe to rotate.

3. A fully automatic coffee machine as claimed in claim 2, characterized in that: a pressure release valve communicated with the charging barrel in a one-way mode is arranged at the upper end of the discharging cover; the water tank is communicated with an air outlet of the air pump; an instant water heater which is communicated with the water tank and used for heating water is fixedly connected in the shell; the instant water heater adds water into the filter cup; when the air pump starts to work, air in the cartridge is sucked into the water tank, so that the water tank supplies water to the outside; when the air pressure in the material cylinder is lower than a set value, external air enters the material cylinder through the pressure release valve.

4. A fully automatic coffee machine as claimed in claim 1, characterized in that: a mixing frame is fixedly connected in the shell above the filter cup; a water outlet channel communicated with the instant water heater and a coffee powder discharging channel communicated with the grinding assembly are formed at the lower end of the mixing frame; the lower ends of the water outlet channel and the coffee powder discharging channel are both positioned at non-circle center positions right above the filter cup; the filter cup is rotatably connected in the shell; the rotating shaft of the filter cup is arranged along the longitudinal direction; and a driving motor for driving the filter cup to rotate is arranged in the shell.

5. A fully automatic coffee machine as claimed in claim 4, characterized in that: the drive motor is capable of driving the grinding assembly to grind coffee beans.

6. A fully automatic coffee machine as claimed in claim 1, characterized in that: the grinding assembly includes an annular electronic scale fixedly attached within the housing for weighing coffee beans entering the grinding assembly.

7. A fully automatic coffee machine as claimed in claim 1, characterized in that: two turnover gears are symmetrically formed in the middle of the side wall of the filtering cup; the overturning gear can enable the filtering cup to horizontally overturn along a rotating shaft arranged transversely; a turnover frame capable of turning over the filter cup is longitudinally connected to the outer side of the filter cup in the shell in a sliding manner; the upper ends of the turnover frames are respectively formed with turnover racks in transmission connection with the corresponding turnover gears; when the overturning frame slides upwards to the limit position, the filter cup overturns for half a circle;

8. A fully automatic coffee machine as claimed in claim 7, characterized in that: the sewage discharge assembly also comprises a sewage containing drawer which is transversely connected in a sliding manner in the sewage discharge shell and can be positioned right below the filter cup and used for containing sewage, and two sewage discharge baffle plates which are transversely connected in the sewage discharge shell and are positioned right above the sewage containing drawer in a sliding manner; a sewage discharge port which can be communicated with the sewage containing drawer is formed at the upper end of the sewage discharge shell and is positioned under the filter cup;

when the sewage discharge shell is positioned at the lower end limit position, the sewage discharge baffle abuts against the sewage discharge baffle to seal the sewage discharge port;

two sliding grooves which are horizontally arranged are formed in one side, facing the shell, of the sewage discharge shell; two guide rails which are symmetrically arranged are formed on one side of the shell, which faces the sewage discharge shell; the distance between the upper ends of the two guide rails is larger than that between the lower ends of the two guide rails, and sliding columns which are simultaneously connected with the sliding grooves and the guide rails in a sliding mode are respectively formed on the sewage discharge baffle;