Coffee machine

Abstract

A coffee machine, wherein a funnel assembly thereof is arranged at a brewing position of a main frame (10) and comprises a funnel (5) and a filter screen (4) arranged in the funnel (5), with the filter screen (4) being hinged to the main frame (10); a driving assembly is connected to the filter screen (4), and is configured to drive the filter screen (4) to flip from the interior of the funnel (5) to a cleaning portion of the main frame (10); a cleaning assembly is arranged on the main frame (10) and located above the cleaning portion , the cleaning assembly being configured to clean the filter screen (4), which has flipped to the cleaning portion; and a grounds collection assembly (17) is located below the cleaning portion. After the filter screen (4) is automatically flipped to the cleaning portion by means of the driving assembly, the cleaning assembly flushes the filter screen (4) from above to more thoroughly remove residual coffee grounds from the filter screen (4). Moreover, the automatic flipping of the filter screen (4) enables the automatic discharging of grounds from the filter screen (4), and in combination with the cleaning assembly, automatic cleaning of the filter screen (4) is achieved, such that the coffee machine can continuously make coffee, thereby increasing the coffee-making efficiency and improving the user experience. The grounds collection assembly (17) is configured to perform solid-liquid separation on a mixture of coffee grounds and water.

Description

Coffee machine TECHNICAL FIELD

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

[0002] The drip coffee machine on the market needs to be manually taken out after each coffee is made, and the coffee residue in the funnel is poured out and cleaned before being placed back on the coffee machine. This not only leads to a poor user experience, but also prevents the coffee machine from continuously making drip coffee.

[0003] The Chinese utility model patent with publication number CN208582227U discloses an automatic powder cleaning drip coffee machine. The machine base is provided with a funnel, a guide rod and a lead screw, the two ends of the lead screw are respectively provided with a drip station and a cleaning station, the funnel can be driven by the lead screw to reciprocate along the guide rod, and the funnel is provided with a scraper for scraping the powder residue in the filter screen. Although this patent can automatically clean the filter screen, the cleaning method of scraping the powder residue in the filter screen with a scraper is not thorough, and the powder residue remains in the filter screen.

[0004] Utility model content

[0005] The purpose of the embodiments of the present application is to provide a coffee machine to solve the problems of troublesome and incomplete cleaning of the filter screen of the coffee machine.

[0006] The embodiments of the present application adopt the following technical solutions: a coffee machine, comprising:

[0007] A main frame having a brewing position and a cleaning position;

[0008] A funnel assembly arranged at the brewing position of the main frame, the funnel assembly comprising a funnel and a filter screen arranged in the funnel, the filter screen being hingedly connected to the main frame;

[0009] A drive assembly connected to the filter screen, the drive assembly being configured to drive the filter screen to flip from the funnel to the cleaning position;

[0010] A cleaning assembly arranged on the main frame and located above the cleaning position, the cleaning assembly being configured to clean the filter screen flipped to the cleaning position;

[0011] A residue receiving assembly arranged below the cleaning position and configured to receive a mixture of coffee residue and water generated by flushing the filter screen;

[0012] A water tank connected to the cleaning assembly and configured to supply water to the cleaning assembly.

[0013] After the filter screen is automatically turned over to the cleaning position by the driving assembly, the filter screen is washed from above by the cleaning assembly to more thoroughly wash away the coffee residue remaining in the filter screen; at the same time, the automatic turning over of the filter screen achieves automatic residue discharge of the filter screen, and the automatic cleaning of the filter screen is achieved in cooperation with the cleaning assembly, so that the coffee machine can continuously make coffee, the coffee making efficiency is improved, and the user experience is improved. The mixture of coffee residue and water generated by washing the filter screen is received by the residue receiving assembly, and then the mixture of coffee residue and water is subjected to dry-wet separation treatment.

[0014] In some embodiments, a hinge shaft is arranged on the filter screen;

[0015] When the filter screen is in the brewing position, the end of the filter screen facing upward is an open end;

[0016] The filter screen is hinged to the main frame through the hinge shaft, and the hinge shaft is also connected with the driving assembly, and the driving assembly can drive the filter screen to turn 180° around the axis of the hinge shaft to the cleaning position.

[0017] The filter screen is turned over 180° to the cleaning position, and at this time, the end of the filter screen facing downward is an open end, so that the coffee residue in the filter screen is more easily washed away, improving the washing effect of the filter screen.

[0018] In some embodiments, the driving assembly includes a motor, a driving gear and a driven gear, the motor is arranged on the main frame, the driving gear is arranged on the output shaft of the motor, the driving gear is engaged with the driven gear, and the driven gear is arranged on one end of the hinge shaft.

[0019] The driving assembly composed of the motor and the gear combination is connected with the hinge shaft and drives the hinge shaft and the filter screen to rotate, realizing the automatic turning over of the filter screen and avoiding the trouble of manually taking out the filter screen for cleaning.

[0020] In some embodiments, the cleaning assembly includes a cleaning nozzle and a first water supply pipeline;

[0021] The cleaning nozzle is arranged on the main frame, and the cleaning nozzle is located above the cleaning position, the cleaning nozzle is connected with one end of the first water supply pipeline, and the other end of the first water supply pipeline is connected with the water tank; when the filter screen is turned over to the cleaning position, the nozzle can spray water to the outer surface of the filter screen to wash the coffee residue on the filter screen into the residue receiving assembly.

[0022] The filter screen is washed from above by the cleaning nozzle, improving the cleaning effect of the filter screen.

[0023] In some embodiments, the cleaning assembly further comprises a water pump, a water inlet of the water pump is connected with the water tank, and a water outlet of the water pump is connected with the other end of the first water supply pipeline; the water pump is used to pump the water in the water tank to the first water supply pipeline.

[0024] The water pump pumps the water in the water tank to the first water supply pipeline and the cleaning nozzle at a certain pressure, so that the cleaning nozzle can wash the filter screen with water flow at a certain pressure, thereby improving the cleaning effect on the filter screen.

[0025] In some embodiments, the slag receiving assembly comprises a waste water box and a slag receiving box;

[0026] The slag receiving box is arranged in the waste water box, the top of the slag receiving box is open, and a filter screen hole is arranged on the slag receiving box, so that the water in the coffee dregs falling into the slag receiving box can enter the waste water box through the filter screen hole.

[0027] The coffee dregs are received by the slag receiving box, and the water in the slag receiving box enters the waste water box through the filter screen hole, thereby realizing the separation of the coffee dregs and the waste water, and avoiding the blockage of the pipeline when cleaning the mixture of the coffee dregs and the water.

[0028] In some embodiments, a handle is arranged on the slag receiving box, and the handle is hinged to the slag receiving box. The handle can be pulled to lift the slag receiving box from the waste water box, so as to separate the coffee dregs and the waste water, that is, to realize simple dry and wet separation, and facilitate cleaning and maintenance.

[0029] In some embodiments, the coffee machine further comprises a base, the base is arranged at the bottom of the main frame, and the slag receiving assembly is placed on the base. A space for placing the slag receiving assembly can be formed between the base and the main frame, and the slag receiving assembly can be placed on the base during the process of receiving the coffee dregs, thereby avoiding exposure of the slag receiving assembly.

[0030] In some embodiments, the coffee machine further comprises a front cover plate, a brewing nozzle, a flow meter, a tee joint, a tee joint valve, a safety valve, and a second water supply pipeline;

[0031] The front cover plate is arranged on the main frame;

[0032] The brewing nozzle is arranged on the front cover plate, and the brewing nozzle is located above the brewing position, and the brewing nozzle is used to brew the coffee powder in the hopper assembly;

[0033] The water outlet of the water pump is connected with the first pipe opening of the three-way pipe, the second pipe opening of the three-way pipe is connected with the safety valve, the third pipe opening of the three-way pipe is connected with the first pipe opening of the three-way valve, the second pipe opening of the three-way valve is connected with one end of the first water supply pipe, the third pipe opening of the three-way valve is connected with one end of the second water supply pipe, and the other end of the second water supply pipe is connected with the brewing nozzle, so as to deliver the water in the water tank to the brewing nozzle.

[0034] The flow meter is arranged on the second water supply pipe.

[0035] The second water supply pipe provides water for brewing coffee for the brewing nozzle, and the flow meter detects the water supply amount, so that the coffee with better taste is brewed with appropriate water amount at the brewing position.

[0036] In some embodiments, the coffee machine further comprises a heater arranged on the pipe between the three-way pipe and the three-way valve, and the heater is used for heating the water from the water tank, so that the second water supply pipe delivers the heated water to the brewing nozzle. The heater delivers the heated water to the brewing nozzle through the second water supply pipe, and the first water supply pipe delivers the heated water to the cleaning nozzle, so that the coffee machine can brew hot coffee and clean the filter screen with hot water, thereby improving the cleaning effect.

[0037] The coffee machine has the following beneficial effects:

[0038] After the filter screen is automatically turned to the cleaning position by the driving assembly, the filter screen is washed from above by the cleaning assembly, so that the residual coffee grounds in the filter screen are washed away more thoroughly. Meanwhile, the automatic turning of the filter screen realizes the automatic discharge of the coffee grounds, and the cleaning assembly realizes the automatic cleaning of the filter screen, so that the coffee machine can continuously make coffee, the coffee making efficiency is improved, and the user experience is improved. The mixture of the coffee grounds and water generated by washing the filter screen is received by the residue receiving assembly, and the mixture of the coffee grounds and water is subjected to dry-wet separation treatment. BRIEF DESCRIPTION OF DRAWINGS

[0039] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the related art, the drawings needed to be used in the embodiments or related art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments described in the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0040] FIG. 1 is an exploded view of the structure of the coffee machine of the present application;

[0041] FIG. 2 is a cross-sectional view of the coffee machine when the filter screen is located in the funnel;

[0042] Fig. 3 is another cross-sectional view of the coffee machine of the present application;

[0043] Fig. 4 is a cross-sectional view of the coffee machine of the present application when the filter is turned out of the funnel by 90°;

[0044] Fig. 5 is a cross-sectional view of the coffee machine of the present application when the filter is turned out of the funnel by 180°;

[0045] Fig. 6 is a view of the slag receiving assembly of the present application;

[0046] Fig. 7 is an exploded view of the slag receiving assembly of the present application;

[0047] Fig. 8 is a view of the water circuit of the present application.

[0048] Reference numerals: 1, front cover plate; 2, brewing spout; 3, cleaning nozzle; 4, filter; 41, hinged axle; 5, funnel; 6, water pump; 7, flow meter; 8, grinder assembly; 9, water tank; 10, main frame; 11, coffee pot; 12, base; 13, heater; 14, motor; 15, driving gear; 16, driven gear; 17, slag receiving assembly; 171, slag receiving box; 172, waste water box; 173, handle; 18, tee; 19, tee valve; 20, safety valve. DETAILED DESCRIPTION

[0049] Various aspects and features of the present application are described herein below with reference to the accompanying drawings.

[0050] It is to be understood that various alterations, modifications and improvements can be made to the embodiments of the application herein disclosed. Accordingly, it is intended to embrace all such alterations, modifications and improvements as fall within the scope and spirit of the application.

[0051] The accompanying drawings incorporated in and forming a part of the specification, illustrate embodiments of the present application and, together with the description given below, serve to explain the principles of the application.

[0052] These and other characteristics, features and advantages of the present application will become apparent from the following description, taken with the accompanying drawings, which illustrate preferred forms of the application.

[0053] It is also to be understood that even though a number of forms of the application have been described herein, it is within the scope of the application to make various changes, modifications and alterations thereto. In particular, it is within the scope of the application to make changes in the order of the steps of the methods of the application and in the order of the steps of the methods of the application.

[0054] The above and other aspects, features and advantages of the present application will become apparent from the following detailed description, taken in conjunction with the accompanying drawings, which illustrate preferred forms of the present application.

[0055] The specific embodiments of the application will be described with reference to the drawings; however, the application is not limited to the specific embodiments described herein. It should be understood that the application can be practiced with modification and alteration, and that the specific embodiments are shown and described for purposes of illustration only. As well, the description and drawings should not be understood to imply any particular order of execution. The following description and drawings are of illustrative embodiments to convey the substance of the application. Procedures and steps described and claimed can be performed in any order that is practicable unless otherwise stated or clearly contradicted by context. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the application pertains. The materials, methods, and examples provided are illustrative only and should not be construed in any way to limit the scope of the application. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the application pertains. The materials, methods, and examples provided are illustrative only and should not be construed in any way to limit the scope of the application.

[0056] This description can use phrases such as "in one embodiment", "in another embodiment", "in yet another embodiment", or "in other embodiments", which can refer to one or more of the same or different embodiments of the application.

[0057] To solve the problems in the background art, the application provides a coffee machine, as shown in FIG. 1, FIG. 2 and FIG. 3, which comprises a main frame 10, a funnel assembly, a driving assembly, a cleaning assembly, a residue receiving assembly 17 and a water tank 9.

[0058] The main frame 10 serves as the installation or placement basis of other structural members, and the main frame 10 can adopt the structure of a shell enclosed by plastic plates. The main frame 10 has a brewing position and a cleaning position.

[0059] The funnel assembly is arranged at the brewing position of the main frame 10, and the funnel assembly comprises a funnel 5 and a filter screen 4 arranged in the funnel 5. The filter screen 4 is hinged to the main frame 10. When coffee needs to be brewed, the filter screen 4 is located in the funnel 5, coffee powder can be placed in the filter screen 4, water is poured into the funnel assembly to brew the coffee powder in the filter screen 4 to form coffee liquid, and the coffee liquid drips from the opening at the bottom of the funnel 5 into a coffee pot 11 placed below the funnel assembly. When the coffee brewing is completed and the filter screen 4 needs to be cleaned, the filter screen 4 can be flipped out of the funnel 5 and flipped to the cleaning position.

[0060] As shown in FIG. 2, when the filter screen 4 is located in the funnel 5, the opening of the filter screen 4 is at the upward end, as shown in FIG. 5, and when the filter screen 4 is flipped to the cleaning position, the opening of the filter screen 4 is at the downward end. On the one hand, the coffee residue in the filter screen 4 can naturally fall from the opening, and on the other hand, the coffee residue that fails to naturally fall can be washed away under the washing of the cleaning assembly and then falls into the residue receiving assembly 17 from the opening end. In this way, when the filter screen 4 is cleaned, the coffee residue accumulated at the bottom of the filter screen 4 can be quickly and thoroughly cleaned.

[0061] The driving assembly is connected with the filter screen 4, and is used for driving the filter screen 4 to overturn from the funnel 5 to the cleaning position, so that the automatic overturning of the filter screen 4 is realized, and the filter screen 4 or the funnel assembly does not need to be manually disassembled from the coffee machine for cleaning. The cleaning efficiency of the filter screen 4 is improved, and the coffee residue and coffee residual liquid and the like are prevented from dropping on the operator or other positions when the filter screen 4 or the funnel assembly is manually removed from the coffee machine.

[0062] The cleaning assembly is arranged on the main frame 10 and located above the cleaning position, and is used for cleaning the filter screen 4 overturned to the cleaning position. The cleaning assembly is located above the cleaning position, and when the filter screen 4 is overturned to the cleaning position, the cleaning assembly can be started to spray water downward, and the water sprayed by the cleaning assembly can wash the filter screen 4 located below. At this time, the downward end of the filter screen 4 is open. Under the impact of the water flow, the coffee residue and the residual coffee liquid on the filter screen 4 are washed away, and the mixture of the coffee residue and the water generated in the washing process naturally falls downward along the filter screen 4 and into the residue receiving assembly 17.

[0063] The above-mentioned residue receiving assembly 17 is arranged below the cleaning position and is used for receiving the mixture of the coffee residue and the water generated by washing the filter screen 4. The residue receiving assembly 17 receives the mixture of the coffee residue and the water generated by washing the filter screen 4, and the mixture can be concentrated for subsequent processing, such as being poured into a garbage can or a sewer.

[0064] The water tank 9 can be arranged on the main frame 10 or can be placed separately. The water tank 9 is connected with the cleaning assembly and is used for supplying water to the cleaning assembly, so that the cleaning assembly can wash the filter screen 4 at the cleaning position through the water flow.

[0065] In the embodiments of the utility model, the filter screen 4 is automatically overturned to the cleaning position by the driving assembly, and then the filter screen 4 is washed from above by the cleaning assembly, so that the coffee residue remaining in the filter screen 4 is washed away more thoroughly. Meanwhile, the automatic overturning of the filter screen 4 realizes the automatic residue discharge of the filter screen 4, and the automatic cleaning of the filter screen 4 is realized in cooperation with the cleaning assembly, so that the coffee machine can continuously make coffee, the coffee making efficiency is improved, and the user experience is improved. The mixture of the coffee residue and the water generated by washing the filter screen 4 is received by the residue receiving assembly 17, and then the mixture of the coffee residue and the water is processed.

[0066] In some embodiments, as shown in FIG. 1, the hinge shaft 41 is arranged on the filter screen 4.

[0067] When the filter screen 4 is in the brewing position, the end of the filter screen facing upwards is an open end, so that when brewing coffee, the coffee liquid formed during brewing can pass through the filter screen into the funnel 5 and drip along the inner wall of the funnel 5 from the opening at the bottom of the funnel 5 into the coffee pot 11 below. At this time, the end of the filter screen facing upwards being an open end also allows the water flow to brew the coffee powder in the filter screen in a larger range during brewing, so that the coffee powder can be brewed more thoroughly.

[0068] The filter screen is hinged to the main frame 10 by the hinge shaft 41, and the hinge shaft 41 is also connected with the driving assembly. The driving assembly can drive the filter screen to flip 180° around the axis of the hinge shaft 41 to the cleaning position, so that the filter screen is in a state with the open end facing downwards, thereby realizing the pouring of the coffee residue in the filter screen and facilitating the washing of the filter screen by the cleaning assembly.

[0069] Specifically, the middle part of the hinge shaft 41 is connected with the filter screen, and the two ends of the hinge shaft 41 are respectively matched with the intersection holes on the main frame 10. One end of the hinge shaft 41 is also connected with the driving assembly. Alternatively, the hinge shaft 41 includes a rotating shaft and an auxiliary shaft, wherein the rotating shaft and the auxiliary shaft are coaxially arranged on the filter screen. One end of the rotating shaft is fixed to the filter screen, and the other end thereof is hinged to the main frame 10. The end of the rotating shaft hinged to the main frame 10 is also connected with the driving assembly. One end of the auxiliary shaft is connected with the filter screen, and the other end thereof is hinged to the main frame 10. When the driving assembly drives the rotating shaft to rotate, the filter screen and the auxiliary shaft are driven to rotate.

[0070] When the filter screen 4 is flipped 180° to the cleaning position, the open end of the filter screen 4 faces downwards, so that the coffee residue in the filter screen 4 is more easily washed away, and the washing effect of the filter screen 4 is improved.

[0071] In some embodiments, in combination with FIG. 3, the driving assembly includes a motor 14, a driving gear 15 and a driven gear 16. The motor 14 can be arranged on the main frame 10, the driving gear 15 is arranged on the output shaft of the motor 14, the driving gear 15 is engaged with the driven gear 16, and the driven gear 16 is arranged on one end of the hinge shaft 41. One end of the hinge shaft 41 passes through the center of the driven gear 16 and is hinged to the main frame 10. Of course, it can be understood that the driving assembly can also adopt other structural forms as long as it can realize the connection with the hinge shaft 41 and drive the hinge shaft 41 to rotate. This is only an example and does not constitute a limitation on the scope of protection of the claims.

[0072] The driving assembly composed of the motor 14 and the gear combination is connected with the hinge shaft 41 and drives the hinge shaft 41 and the filter screen 4 to rotate, thereby realizing the automatic flipping of the filter screen 4 and avoiding the trouble of manually taking out the filter screen 4 for cleaning.

[0073] In some embodiments, the coffee machine further provides water for the cleaning assembly through a waterway structure. Specifically, in combination with FIG. 8, the cleaning assembly includes a cleaning nozzle 3 and a first water supply pipe.

[0074] The cleaning nozzle 3 is arranged on the main frame 10 and located above the cleaning position, and the water outlet of the cleaning nozzle 3 faces downward. The cleaning nozzle 3 is connected to one end of the first water supply pipe, and the other end of the first water supply pipe is connected to the water tank 9. When the filter screen 4 is flipped to the cleaning position, the cleaning nozzle 3 can spray water to the outer surface of the filter screen 4. Because the water flow has a certain impact force on the outer surface of the filter screen 4, the filter screen 4 can be washed while the coffee residue in the mesh of the filter screen 4 is washed away, and the inner surface of the filter screen 4 can also be cleaned. The coffee residue on the filter screen 4 is washed into the residue receiving assembly 17. The filter screen 4 in the cleaning position is washed from above by the cleaning nozzle 3, which improves the cleaning effect of the filter screen 4.

[0075] In some embodiments, the cleaning assembly further includes a water pump 6, the water inlet of the water pump 6 is connected to the water tank 9, and the water outlet of the water pump is connected to the other end of the first water supply pipe. The water pump is used to pump the water in the water tank 9 to the first water supply pipe, and then the first water supply pipe delivers the water to the cleaning nozzle 3, and then the water is sprayed downward from the water outlet of the cleaning nozzle 3 to the filter screen 4 in the cleaning position, so as to realize the cleaning of the filter screen 4. The water pump can pump the water in the water tank 9 to the first water supply pipe and the cleaning nozzle 3 at a relatively high pressure, so that the cleaning nozzle 3 can wash the filter screen 4 with water flow at a certain pressure, which improves the cleaning effect of the filter screen 4.

[0076] In some embodiments, in combination with FIGS. 6 and 7, the residue receiving assembly 17 includes a waste water box 172 and a residue receiving box 171.

[0077] The residue receiving box 171 is arranged in the waste water box 172, the top of the residue receiving box 171 is open, and the residue receiving box 171 is provided with filter screen holes, so that the water in the coffee residue falling into the residue receiving box 171 can enter the waste water box 172 through the filter screen holes. The coffee residue is received by the residue receiving box 171, and the water in the residue receiving box 171 enters the waste water box 172 through the filter screen holes, realizing the separation of the coffee residue and the waste water, and avoiding the blockage of the pipeline when cleaning the mixture of the coffee residue and the water.

[0078] In some embodiments, in combination with FIG. 7, the residue receiving box 171 is provided with a handle 173, and the handle 173 is hinged to the residue receiving box 171. The residue receiving box 171 can be lifted out of the waste water box 172 by pulling the handle 173, so as to facilitate the separation of the coffee residue and the waste water, that is, to realize simple dry and wet separation, and facilitate cleaning and maintenance.

[0079] In some embodiments, in combination with FIG. 1 and FIG. 2, the coffee machine further comprises a base 12 arranged at the bottom of the main frame 10, and the dreg receiving assembly 17 is placed on the base 12. A space for placing the dreg receiving assembly 17 can be formed between the base 12 and the main frame 10, and the dreg receiving assembly 17 can be placed on the base 12 during the process of receiving coffee dregs, so as to avoid the dreg receiving assembly 17 being exposed. In addition, the base 12 can also be used to place the coffee pot 11.

[0080] In some embodiments, in combination with FIG. 8, the coffee machine further comprises a front cover plate 1, a brewing nozzle 2, a flow meter 7, a tee pipe 18, a tee valve 19, a safety valve 20, and a second water supply pipeline. The coffee machine further supplies water to the brewing nozzle 2 through the waterway structure.

[0081] The front cover plate 1 is arranged at the front side of the main frame 10, and the brewing position and the cleaning position can be respectively arranged at the front side and the rear side of the main frame 10. In addition, a coffee grinder assembly 8 can also be arranged on the main frame 10, which is used for grinding coffee beans. The coffee grinder assembly 8 is located above the brewing position, so that the ground coffee powder can directly fall into the hopper assembly.

[0082] The brewing nozzle 2 is arranged on the front cover plate 1, and the brewing nozzle 2 is located above the brewing position, which is used for providing brewing water into the hopper assembly to brew coffee powder in the hopper assembly. The water outlet of the water pump 6 is connected with the first pipe port of the tee pipe 18, the second pipe port of the tee pipe 18 is connected with the safety valve 20, and the safety valve 20 is used for discharging water in the water pump in an emergency. The third pipe port of the tee pipe 18 is connected with the first pipe port of the tee valve 19, the second pipe port of the tee valve 19 is connected with one end of the first water supply pipeline, the third pipe port of the tee valve 19 is connected with one end of the second water supply pipeline, and the other end of the second water supply pipeline is connected with the brewing nozzle 2, so as to transport water in the water tank 9 to the brewing nozzle 2. The flow meter 7 is arranged on the second water supply pipeline, so as to measure the amount of water provided to the brewing nozzle 2 through the second water supply pipeline. The second water supply pipeline provides water for brewing coffee to the brewing nozzle 2, and the flow meter 7 measures the amount of water supply, so as to brew coffee with better taste in the brewing position with appropriate amount of water.

[0083] Of course, the second water supply pipeline can also be connected with another water tank 9, instead of sharing one water tank 9 with the first water supply pipeline.

[0084] In some embodiments, the coffee machine further comprises a heater 13 arranged on the pipeline between the tee pipe 18 and the tee valve 19, the heater 13 being used to heat the water from the water tank 9, so that the second water supply pipeline supplies heated water to the brewing nozzle 2, and the first water supply pipeline supplies heated water to the cleaning nozzle 3. The heater 13 can be arranged on the base 12 or on the main frame 10. The heater 13 supplies heated water to the brewing nozzle 2 through the second water supply pipeline, so that the coffee machine can brew hot coffee; in addition, the filter screen is cleaned by hot water, thereby improving the cleaning effect.

[0085] When drip filtering coffee, the tee valve 19 is powered off, the water pump 6 pumps water to spray on the coffee powder in the filter screen 4 through the heater 13, the first pipe opening of the tee valve 19 and the third pipe opening of the tee valve 19, and the drip filtered coffee is discharged into the coffee pot 11 below; after the coffee is drip filtered, the motor drives the filter screen 4 to rotate 180° to the cleaning position for cleaning, at this time the tee valve 19 is powered on, and the water pump 6 pumps water to spray on the inverted filter screen 4 through the heater 13, the first pipe opening of the tee valve 19 and the second pipe opening of the tee valve 19, thereby washing the filter screen 4 from the outside to the inside.

[0086] When starting to make coffee, the funnel assembly of the coffee machine is in the brewing position (the state shown in Fig. 2), the filter screen 4 is located in the funnel 5, the bean grinder assembly 8 starts to grind coffee beans, the ground coffee powder enters the filter screen 4, after the grinding is completed, the water pump 6 starts to pump water from the water tank 9, the water passes through the flow meter 7, is heated by the heater 13, and then is brewed through the brewing nozzle 2 to brew the coffee powder in the filter screen 4, the brewed coffee liquid starts to flow into the coffee pot 11 through the funnel 5, after the brewing is completed, the motor 14 starts to work to drive the driving gear 15 to rotate, thereby driving the driven gear 16 to rotate, the driven gear 16 drives the filter screen 4 to start to rotate (combined with Figs. 2, 3, 4 and 5), when the filter screen 4 rotates to the state shown in Fig. 5, the coffee residue in the filter screen 4 will drop into the residue receiving assembly 17 due to gravity, then the cleaning nozzle 3 of the cleaning assembly sprays water to clean the filter screen 4, the residue receiving assembly 17 separates the residue from the waste water through the residue receiving box 171 and the waste water box 172, after the cleaning is completed, the filter screen 4 is driven back to the initial position by the driving assembly, as shown in Fig. 2.

[0087] The above describes in detail the multiple embodiments of the present application, but the present application is not limited to these specific embodiments, and those skilled in the art can make various modifications and embodiments on the basis of the concept of the present application, and these modifications and embodiments shall fall within the scope of the present application.

Claims

1. A coffee maker, characterized in that, The utility model relates to a coffee machine, comprising: a main frame (10) having a brewing position and a cleaning position; a funnel assembly arranged at the brewing position of the main frame (10), the funnel assembly comprising a funnel (5) and a filter screen (4) arranged in the funnel (5), the filter screen (4) being hinged to the main frame (10); a drive assembly connected to the filter screen (4), the drive assembly being configured to drive the filter screen (4) to flip from inside the funnel (5) to the cleaning position; a cleaning assembly arranged on the main frame (10) and above the cleaning position, the cleaning assembly being configured to clean the filter screen (4) flipped to the cleaning position; a residue receiving assembly (17) arranged below the cleaning position and configured to receive a mixture of coffee residue and water generated by cleaning the filter screen (4); a water tank (9) connected to the cleaning assembly and configured to supply water to the cleaning assembly.

2. Coffee maker according to claim 1, characterized in that The filter screen (4) is provided with a hinge shaft (41); When the filter screen (4) is at the brewing position, an end of the filter screen (4) facing upwards is an open end; The filter screen is hinged to the main frame (10) via the hinge shaft (41), and the hinge shaft (41) is further connected to the drive assembly, and the drive assembly is capable of driving the filter screen to flip 180° around the axis of the hinge shaft (41) to the cleaning position.

3. The coffee maker of claim 2, wherein, The drive assembly comprises a motor (14), a driving gear (15) and a driven gear (16), the motor (14) is arranged on the main frame (10), the driving gear (15) is arranged on the output shaft of the motor (14), the driving gear (15) is engaged with the driven gear (16), and the driven gear (16) is arranged at one end of the hinge shaft (41).

4. The coffee maker of claim 1, wherein, The cleaning assembly comprises a cleaning nozzle (3) and a first water supply pipeline; The cleaning nozzle (3) is arranged on the main frame (10) and above the cleaning position, the cleaning nozzle (3) is connected to one end of the first water supply pipeline, the other end of the first water supply pipeline is connected to the water tank (9), and when the filter screen (4) is flipped to the cleaning position, the nozzle is capable of spraying water to the outer surface of the filter screen (4) to flush the coffee residue on the filter screen (4) into the residue receiving assembly (17).

5. The coffee maker of claim 4, wherein, The cleaning assembly further comprises a water pump (6), the water inlet of the water pump (6) is connected to the water tank (9), and the water outlet of the water pump (6) is connected to the other end of the first water supply pipeline; the water pump (6) is configured to pump water in the water tank (9) to the first water supply pipeline.

6. The coffee maker of claim 1, wherein, The residue receiving assembly (17) comprises a waste water box (172) and a residue receiving box (171); The residue receiving box (171) is arranged in the waste water box (172), the top of the residue receiving box (171) has an opening, and the residue receiving box (171) is provided with filter screen holes, so that the water in the coffee residue falling into the residue receiving box (171) can enter the waste water box (172) through the filter screen holes.

7. The coffee maker of claim 6, wherein, The slag receiving box (171) is provided with a handle (173) hinged to the slag receiving box (171).

8. The coffee maker of claim 1, wherein, The coffee machine further comprises a base (12) arranged at the bottom of the main frame (10), and the slag receiving assembly (17) is placed on the base (12).

9. The coffee maker of claim 5, wherein, The coffee machine further comprises a front cover plate (1), a brewing water nozzle (2), a flow meter (7), a tee pipe (18), a tee valve (19), a safety valve (20) and a second water supply pipeline; The front cover plate (1) is arranged on the main frame (10); The brewing water nozzle (2) is arranged on the front cover plate (1) and above the brewing position, and is used for brewing coffee powder in the hopper assembly; The water outlet of the water pump (6) is connected with the first pipe opening of the tee pipe (18), the second pipe opening of the tee pipe (18) is connected with the safety valve (20), the third pipe opening of the tee pipe (18) is connected with the first pipe opening of the tee valve (19), the second pipe opening of the tee valve (19) is connected with one end of the first water supply pipeline, the third pipe opening of the tee valve (19) is connected with one end of the second water supply pipeline, and the other end of the second water supply pipeline is connected with the brewing water nozzle (2) to deliver water in the water tank (9) to the brewing water nozzle (2). The flow meter (7) is arranged on the second water supply pipeline.

10. The coffee maker of claim 9, wherein, The coffee machine further comprises a heater (13) arranged on the pipeline between the tee pipe (18) and the tee valve (19), which is used for heating water from the water tank (9) to deliver heated water to the brewing water nozzle (2) through the second water supply pipeline and to the cleaning nozzle (3) through the first water supply pipeline.

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