Drip coffee machine

Abstract

The present application provides a drip coffee machine, which belongs to the technical field of coffee machines. The drip coffee machine includes a machine body and a top cover assembly; the drip coffee machine also includes: a funnel assembly, which is arranged on the top cover assembly; a driving assembly, which includes a power component, a driving gear, a first transmission gear and an eccentric shaft, one end of the eccentric shaft is rotatably connected to the top cover assembly, and the other end of the eccentric shaft is rotatably connected to the funnel assembly; the driving gear is connected to the power component, and the driving gear can also mesh with the first transmission gear to drive the first transmission gear to rotate, the first transmission gear is arranged on the eccentric shaft, and drives the eccentric shaft to rotate when rotating, and the eccentric shaft drives the funnel assembly to rotate eccentrically relative to the top cover assembly when rotating. The present application sets a driving assembly with an eccentric shaft, and uses the eccentric shaft to connect the top cover assembly and the funnel assembly, so that the driving assembly can drive the funnel assembly to rotate eccentrically relative to the top cover assembly, simulating the shaking of a human hand to obtain the effect of hand-brewed coffee.

Description

Technical Field

[0001] The present application belongs to the technical field of coffee machines, and in particular to a drip coffee machine. Background Art

[0002] Most of the two-in-one coffee machines on the market today cannot fully simulate the brewing method of hand-brewed coffee in drip mode, and the capsule mode requires manual puncture of the capsule. The user experience is average, and the coffee liquid concentration and extraction degree are not high.

[0003] For example, the Chinese utility model patent with the authorization announcement number CN 217488292 U discloses a drip coffee machine compatible with coffee capsules, which combines a capsule funnel with a coffee powder hopper, and has both a capsule mode and a drip mode. However, since the coffee powder hopper is fixed, the drip mode cannot simulate the brewing method of hand-brewed coffee, and cannot meet the user's demand for hand-brewed coffee. Summary of the invention

[0004] In view of the above-mentioned problems existing in the prior art, an object of the embodiments of the present application is to provide a drip coffee machine capable of simulating hand-brewed coffee.

[0005] The technical solution adopted in the embodiment of the present application is a drip coffee machine, comprising a machine body and a top cover assembly arranged on the machine body, and the drip coffee machine also includes:

[0006] A funnel assembly, which is arranged on the top cover assembly;

[0007] A driving assembly, which includes a power component, a driving gear, a first transmission gear and an eccentric shaft, wherein one end of the eccentric shaft is rotatably connected to the top cover component, and the other end of the eccentric shaft is rotatably connected to the funnel component; the driving gear is connected to the power component and rotates under the action of the power component, and the driving gear can also mesh with the first transmission gear to drive the first transmission gear to rotate, and the first transmission gear is arranged on the eccentric shaft, and the first transmission gear drives the eccentric shaft to rotate when the first transmission gear rotates, and the eccentric shaft drives the funnel component to rotate eccentrically relative to the top cover component when the eccentric shaft rotates. The drip coffee machine of the embodiment of the present application is provided with a driving assembly having an eccentric shaft, and the opposite ends of the eccentric shaft are rotatably connected to the top cover component and the funnel component respectively, so that the driving assembly can drive the funnel component to rotate eccentrically relative to the top cover component, simulating the shaking of a human hand to obtain the effect of hand-brewed coffee.

[0008] In an optional embodiment, the eccentric shaft includes a shaft, a first bearing and a second bearing, the shaft includes a first rod portion and a second rod portion that are non-coaxially arranged and connected, the first bearing is mounted on the first rod portion and fixedly connected to the top cover assembly; the second bearing is mounted on the second rod portion and fixedly connected to the funnel assembly; the first transmission gear is fixed to the first rod portion. The above eccentric shaft has a simple structure and an ingenious design. Through the eccentric shaft, when the driving gear is driven by the power component to rotate, the funnel assembly can be driven to rotate eccentrically relative to the top cover assembly.

[0009] In an optional embodiment, the top cover assembly includes a top cover and a bottom cover, the top cover is buckled on the bottom cover, and is enclosed with the bottom cover to form a receiving cavity;

[0010] The bottom cover is provided with three shaft limiting holes located on the same circular ring; the driving assembly includes three eccentric shafts, and the shafts of the three eccentric shafts are respectively limited in the three shaft limiting holes, and the shafts can rotate eccentrically in the shaft limiting holes; the first bearings of the three eccentric shafts are all located in the accommodating cavity and fixedly connected to the bottom cover, and the second bearings of the three eccentric shafts are all located outside the accommodating cavity and fixedly connected to the funnel assembly; the first transmission gear is located in the accommodating cavity and installed on the first rod portion of the shaft of one of the eccentric shafts. By providing three eccentric shafts, the funnel assembly can be stably connected to the top cover assembly, and the funnel assembly can be driven to rotate eccentrically smoothly.

[0011] In an optional embodiment, a water dripping hole is provided on the bottom cover, and the water dripping hole is located in a circle surrounded by the three rotating shaft limiting holes and deviates from the center of the circle; and / or

[0012] The drip coffee maker also includes a water diverter valve, which includes a valve body and a hollow valve stem, wherein the valve body is provided with a valve cavity, and the valve body is provided with a water inlet, a first water outlet, and a second water outlet respectively connected to the valve cavity, the water inlet is connected to a water tank of the drip coffee maker, the first water outlet is connected to the drip water outlet hole, and the second water outlet is connected to the puncture needle assembly in the accommodating cavity; a through-port is provided on the hollow valve stem, the hollow valve stem is arranged in the valve cavity, and one end of the hollow valve stem located in the valve cavity is connected to the water inlet, and the hollow valve stem can rotate under the action of an external force, so that the through-port can be selectively connected to the first water outlet or the second water outlet, so that the brewing water from the water inlet can enter the drip water outlet hole or the puncture needle assembly respectively. By setting a water diverter valve, the present application can selectively provide the water in the water tank to the drip outlet hole or the puncture needle assembly, so that the drip coffee machine can select different water outlet methods and water outlet positions according to different brewing modes, meet different brewing needs, and improve the taste of the brewed coffee.

[0013] In an optional embodiment, the drip coffee machine further includes a knob assembly, the knob assembly includes a knob and a knob shaft connected to the knob, and a first gear is disposed at the end of the knob shaft;

[0014] The other end of the hollow valve stem is located outside the valve cavity of the valve body and is provided with a second gear, and the second gear is meshed with the first gear. When the knob is rotated, the first gear and the second gear can be driven to rotate, thereby driving the hollow valve stem to rotate. In this way, the water diverter valve can be controlled through the knob assembly, and the operation is convenient, and the user experience is better.

[0015] In an optional embodiment, a screw is provided in the accommodating chamber, and the screw is threadedly connected to the puncture needle assembly, so that when the screw rotates, the puncture needle assembly can be driven to move downward and puncture the coffee capsule installed in the funnel assembly. The method of driving the puncture needle assembly to rise and fall by the screw is simple and reliable.

[0016] In an optional embodiment, the driving assembly further comprises a fixing plate, the power component and the driving gear are both arranged on the fixing plate, and the fixing plate is further provided with a shaft sleeve and a sliding rod; the shaft sleeve is sleeved on the convex shaft on the bottom cover and can rotate relative to the convex shaft;

[0017] A spiral groove is provided on the outer peripheral wall of the knob shaft, and the slide bar is perpendicular to the knob shaft and embedded in the spiral groove of the knob shaft, so that when the knob is rotated, the slide bar can be pushed to drive the fixed plate to rotate around the convex shaft, so that the fixed plate can switch between the first position and the second position. When the fixed plate is in the first position, the driving gear is meshed with the first transmission gear; when the fixed plate is in the second position, the driving gear is meshed with the second transmission gear provided in the accommodating cavity, and the second transmission gear is connected to the third transmission gear provided on the screw rod for driving the third transmission gear to rotate. The structural design of the driving assembly of the embodiment of the present application is ingenious, and is combined with a special knob assembly, so that by rotating the knob, it is possible to control whether the driving assembly is used to drive the funnel assembly to rotate or to drive the puncture needle assembly to rise and fall. The operation is simple and convenient, and the user experience is good.

[0018] In an optional embodiment, when the knob shaft rotates in a first direction by a first angle, the first gear on the knob shaft drives the hollow valve stem to rotate through the second gear until the through-port thereon is connected to the first water outlet, and the knob shaft drives the sliding rod to drive the fixing plate to rotate to the first position;

[0019] When the knob shaft rotates in the second direction by a second angle, the first gear on the knob shaft drives the hollow valve stem to rotate through the second gear until the through opening thereon is connected to the second water outlet, and the knob shaft drives the sliding rod to drive the fixed plate to rotate to the second position.

[0020] In an optional embodiment, the bottom cover is provided with a mounting opening connected to the accommodating cavity, and the lower portion of the puncture needle assembly is inserted through the mounting opening and can move relative to the mounting opening;

[0021] The lower side of the bottom cover is provided with a shower head for sealing the mounting opening, the middle part of the shower head has a through hole for avoiding the puncture needle of the puncture needle assembly, an annular groove surrounding the through hole is formed in the shower head, and a water sprinkling hole is provided at the bottom of the annular groove; the dripping water outlet hole is connected with the annular groove for supplying water into the annular groove. By providing the shower head, brewing water enters the annular groove of the shower head through the dripping water outlet hole, and flows out through the water sprinkling hole in a dispersed manner, so that the coffee powder can be more evenly soaked.

[0022] In an optional embodiment, a leak-stop valve is provided at the bottom of the funnel assembly;

[0023] The drip coffee machine further comprises a rotary drive mechanism, and the rotary drive mechanism is used for driving the leakage-stop valve to rise and fall, and to open or close the leakage-stop valve.

[0024] In an optional embodiment, the rotary drive mechanism includes a motor, a rotary head, a leak-stop push rod and a leak-stop bracket. The motor is connected to the rotary head and is used to drive the rotary head to rotate. The rotary head is provided with a first slide rail, and one end of the first slide rail has a first guide slope. When the rotary head rotates, the first slide rail can push the leak-stop push rod toward the leak-stop bracket through the first guide slope, and push the leak-stop bracket toward the leak-stop valve. The leak-stop bracket is provided with a second guide slope on the side facing the leak-stop valve. When the leak-stop bracket moves toward the leak-stop valve, the leak-stop valve can move to the second guide slope and be lifted. When the leak-stop bracket moves in a direction away from the leak-stop valve, the leak-stop valve gradually moves out from the second guide slope and descends. The rotary drive mechanism of the present application is cleverly designed in structure and can automatically control the opening and closing of the leak-stop valve.

[0025] In an optional embodiment, the rotating head is further provided with a spiral second slide rail;

[0026] The funnel assembly comprises a funnel and a funnel bracket, a push rod groove is provided on the top periphery of the funnel, a push rod hole and a locking push rod are provided on the funnel bracket, the lower end of the locking push rod abuts against the spiral surface of the second slide rail, and when the funnel is mounted on the funnel bracket, the push rod groove is opposite to the push rod hole;

[0027] When the rotating head rotates, the second slide rail can push the locking push rod to move up and down, so that the upper end of the locking push rod can pass through the push rod hole and extend into the push rod groove to lock the funnel on the funnel bracket, or the upper end of the locking push rod can be released from the push rod groove and the push rod hole to release the lock between the funnel and the funnel bracket. In this way, when the rotating head rotates, the second slide rail pushes the locking push rod up and down through the spiral surface, so that the locking push rod can lock and unlock the funnel on the funnel bracket.

[0028] Compared with the prior art, the beneficial effects of the embodiments of the present application are: in the drip mode, the driving component of the drip coffee machine of the embodiment of the present application drives the funnel to shake, which is closer to hand-brewed coffee, allowing the coffee powder to be fully soaked and the coffee liquid to have higher quality; in the capsule mode, the puncture needle is driven by the driving component and can be extended and retracted up and down, without the need for manual puncture, making the user's operation more labor-saving and convenient.

[0029] It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application.

[0030] The overview of various implementations or examples of the technology described in this application is not a comprehensive disclosure of the entire scope or all features of the disclosed technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In the drawings, which are not necessarily drawn to scale, the same reference numerals may describe similar components in different views. The drawings generally illustrate various embodiments by way of example and not limitation, and together with the specification and claims, serve to illustrate the claimed embodiments. Where appropriate, the same reference numerals are used throughout the drawings to refer to the same or similar parts.

[0032] Figure 1 This is a cross-sectional view of the drip coffee machine according to an embodiment of the present application when in drip mode.

[0033] Figure 2 This is a cross-sectional view of the drip coffee machine according to the embodiment of the present application in capsule mode.

[0034] Figure 3 This is a partial cross-sectional view from another perspective when the drip coffee machine according to the embodiment of the present application is in capsule mode.

[0035] Figure 4 An exploded view of the top cover assembly of the drip coffee maker according to an embodiment of the present application.

[0036] Figure 5 This is a top view of the drip coffee machine with the top cover removed from the top cover assembly according to an embodiment of the present application.

[0037] Figure 6 This is an exploded view of the eccentric shaft according to an embodiment of the present application.

[0038] Figure 7 This is a schematic diagram of the partial structure of the drip coffee machine of an embodiment of the present application after the top cover assembly is removed.

[0039] Figure 8 This is a diagram of the assembly relationship between the eccentric shaft and the bottom cover of an embodiment of the present application, and the direction of the arrow in the figure indicates the rotation direction of the eccentric shaft.

[0040] Fig. 9 This is a schematic diagram of the structure of the bottom cover of the embodiment of the present application without a shower installed.

[0041] Fig.10 This is a structural schematic diagram of a shower head installed on a bottom cover of an embodiment of the present application.

[0042] Fig.11 This is a schematic diagram of the structure of the drip coffee machine of an embodiment of the present application with the top cover removed.

[0043] Fig.12 This is an exploded view of the water diversion valve according to an embodiment of the present application.

[0044] Fig.13 This is a diagram of the matching relationship between the knob assembly and the water diversion valve of the embodiment of the present application.

[0045] Fig.14 This is a schematic diagram of the structure of the knob assembly of an embodiment of the present application.

[0046] Fig.15 It is a cross-sectional view of the puncture needle assembly according to an embodiment of the present application.

[0047] Fig.16 This is an exploded view of the puncture needle assembly of an embodiment of the present application.

[0048] Fig.17 for Figure 1 Enlarged view of part A.

[0049] Fig.18 This is a bottom view of the drip coffee machine of the embodiment of the present application when it is in drip mode with the bottom cover removed from the top cover assembly.

[0050] Fig.19 This is a bottom view of the drip coffee machine of the embodiment of the present application in capsule mode with the bottom cover removed from the top cover assembly.

[0051] Fig. 20 An exploded view of the partial structure of the drip coffee maker according to an embodiment of the present application.

[0052] Fig.21 This is a schematic diagram of the structure of the leak-proof valve according to an embodiment of the present application.

[0053] Fig. 22 This is a schematic diagram of the structure of the leak-stopping bracket according to an embodiment of the present application.

[0054] Fig.23 It is a schematic structural diagram of a rotating head according to an embodiment of the present application.

[0055] Fig.24 This is a schematic diagram of the structure of the drip coffee machine without the funnel according to an embodiment of the present application.

[0056] Fig.25 This is a schematic diagram of the structure of the funnel support according to an embodiment of the present application.

[0057] Fig.26 This is a structural schematic diagram of an embodiment of the present application in which the rotation drive mechanism drives the locking push rod to a locked state.

[0058] Fig. 27 This is a structural schematic diagram of an embodiment of the present application in which the rotation drive mechanism drives the locking push rod to an unlocked state.

[0059] Fig.28 This is a schematic diagram of the structure of a drip coffee machine according to an embodiment of the present application.

[0060] Reference numerals:

[0061] 1- body;

[0062] 2-top cover assembly; 21-top cover; 22-bottom cover; 221-rotating shaft limiting hole; 222-drip outlet hole; 223-convex shaft; 224-installation port; 23-accommodating cavity; 24-rotating shaft bracket; 241-assembly hole;

[0063] 3-funnel assembly; 31-funnel; 311-filter screen; 312-push rod slot; 32-funnel bracket; 321-installation plane; 322-push rod hole; 323-hole; 33-locking push rod; 34-leak-proof valve; 341-shaft; 35-funnel cover; 351-funnel inner cover; 352-funnel outer cover; 353-through hole; 36-funnel bracket seat; 37-funnel bottom cover; 371-avoidance hole; 38-push rod bracket; 39-capsule bracket;

[0064] 4-driving assembly; 41-power component; 42-driving gear; 43-first transmission gear; 44-eccentric shaft; 441-shaft; 442-first rod; 443-second rod; 444-disc; 445-first bearing; 446-second bearing; 45-fixing plate; 451-shaft sleeve; 452-sliding rod; 46-second transmission gear; 47-third transmission gear; 48-fourth transmission gear; 49-transmission shaft;

[0065] 5-puncture needle assembly; 51-syringe; 52-puncture needle; 53-core body; 531-water inlet channel; 532-blind hole; 54-threaded sleeve; 55-screw; 56-silicone sleeve;

[0066] 6-water diverter valve; 61-valve body; 611-valve cavity; 612-water inlet; 613-first water outlet; 614-second water outlet; 62-hollow valve stem; 621-through port; 63-sealed silicone sleeve; 631-opening; 632-convex ridge; 64-second gear; 65-silicone tube;

[0067] 7-knob assembly; 71-knob; 72-knob shaft; 721-spiral groove; 73-first gear;

[0068] 8-shower head; 81-through hole; 82-sprinkling hole;

[0069] 9-rotation drive mechanism; 91-motor; 92-rotation head; 921-main body; 922-first slide rail; 9221-first guide slide slope; 923-second slide rail; 93-leak-stop push rod; 94-leak-stop bracket; 941-support foot; 9411-second guide slide slope;

[0070] 10-Coffee powder. DETAILED DESCRIPTION

[0071] In order to make the purpose, technical solution and advantages of the embodiment of the present application clearer, the technical solution of the embodiment of the present application will be clearly and completely described in conjunction with the drawings of the embodiment of the present application. Obviously, the described embodiment is a part of the embodiment of the present application, not all of the embodiments. Based on the described embodiment of the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0072] Unless otherwise defined, the technical terms or scientific terms used in this application should be understood by people with ordinary skills in the field to which this application belongs. "First", "second" and similar words used in this application do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0073] In order to keep the following description of the embodiments of the present application clear and concise, the present application omits detailed descriptions of known functions and known components.

[0074] like Figure 1 and Figure 2 As shown, an embodiment of the present application provides a drip coffee machine. The drip coffee machine includes a machine body 1 and a top cover assembly 2 disposed on the machine body 1. The drip coffee machine also includes a funnel assembly 3 and a drive assembly 4. The funnel assembly 3 is disposed on the top cover assembly 2 and can rotate eccentrically relative to the top cover assembly 2 under the action of the drive assembly 4. A water supply system is disposed in the top cover assembly 2 for providing brewing water to the funnel assembly 3.

[0075] like Figures 3 to 5 As shown, the driving assembly 4 includes a power component 41, a driving gear 42, a first transmission gear 43 and an eccentric shaft 44. One end of the eccentric shaft 44 is rotatably connected to the top cover assembly 2, and the other end of the eccentric shaft 44 is rotatably connected to the funnel assembly 3. The driving gear 42 is connected to the power component 41 and rotates under the action of the power component 41. The driving gear 42 can also mesh with the first transmission gear 43 to drive the first transmission gear 43 to rotate. The first transmission gear 43 is arranged on the eccentric shaft 44. When the first transmission gear 43 rotates, the eccentric shaft 44 is driven to rotate. When the eccentric shaft 44 rotates, the funnel assembly 3 is driven to rotate eccentrically relative to the top cover assembly 2.

[0076] The drip coffee machine of the embodiment of the present application is provided with a driving component 4 having an eccentric rotating shaft 44, and the opposite ends of the eccentric rotating shaft 44 are rotatably connected to the top cover component 2 and the funnel component 3 respectively, so that when the driving gear 42 of the driving component 4 rotates, the eccentric rotating shaft 44 can be driven to rotate through the first transmission gear 43, and when the eccentric rotating shaft 44 rotates, it can further drive the funnel component 3 to rotate eccentrically relative to the top cover component 2, thereby realizing the effect of simulating human hand shaking in the drip mode, so that the coffee powder 10 in the funnel component 3 can be fully extracted, thereby improving the taste of the brewed coffee.

[0077] In some embodiments, Figure 6 As shown, the eccentric shaft 44 includes a shaft 441, a first bearing 445 and a second bearing 446. The shaft 441 includes a first rod 442 and a second rod 443 that are non-coaxially arranged and connected. The first bearing 445 is mounted on the first rod 442 and can rotate relative to the first rod 442, and the first bearing 445 is fixedly connected to the top cover assembly 2. The second bearing 446 is mounted on the second rod 443 and can rotate relative to the second rod 443, and the second bearing 446 is fixedly connected to the funnel assembly 3. The first transmission gear 43 is fixed on the first rod 442, for example, the first transmission gear 43 is close to the end of the first rod 442 relative to the first bearing 445, so as to be more convenient to mesh with the driving gear 42. The above-mentioned eccentric rotating shaft 44 has a simple structure and ingenious design. Through the eccentric rotating shaft 44, when the driving gear 42 is driven by the power component 41 to rotate, the shaft 441 is driven to rotate through the first transmission gear 43. Since the top cover assembly 2 is arranged on the body 1 and is fixed relative to the body 1, when the shaft 441 rotates, the top cover assembly 2 is kept stationary through the first bearing 445, and the funnel assembly 3 is connected to the top cover assembly 2 through the eccentric rotating shaft 44. When the shaft 441 rotates and the top cover assembly 2 is kept stationary, and the shaft 441 is an eccentric structure, it will drive the funnel assembly 3 to rotate with a non-fixed axis, that is, eccentric rotation. In this way, the effect of simulating hand flushing can be achieved in the drip mode.

[0078] In order to realize the non-coaxial arrangement of the first rod portion 442 and the second rod portion 443 while maintaining the connection, as shown in FIG. Figure 6 As shown, the shaft 441 also includes a disc portion 444, a first rod portion 442 is vertically arranged on a first disc surface of the disc portion 444, and a second rod portion 443 is vertically arranged on a second disc surface of the disc portion 444 opposite to the first disc surface, and the first rod portion 442 and the second rod portion 443 are not colinear. In this embodiment, the first rod portion 442 and the second rod portion 443 are both offset from the center of the disc portion 444 and are arranged on different sides of the center. A plane is cut on the outer peripheral surface of the free end of the first rod portion 442 to facilitate fixing the first transmission gear 43 to the free end of the first rod portion 442.

[0079] In some embodiments, Figure 4 As shown, the top cover assembly 2 includes a top cover 21 and a bottom cover 22. The top cover 21 is located above the bottom cover 22 and is buckled onto the bottom cover 22 to enclose the bottom cover 22 to form a receiving cavity 23 (see Figure 1 and Figure 2 ). The bottom cover 22 is provided with three rotation axis limiting holes 221 located on the same circle.

[0080] The driving assembly 4 includes three eccentric rotating shafts 44, and the shafts 441 of the three eccentric rotating shafts 44 are respectively limited in three rotating shaft limiting holes 221, that is, the shafts 441 of the eccentric rotating shafts 44 can rotate eccentrically in the rotating shaft limiting holes 221, but will not move axially. Among them, the aperture of the rotating shaft limiting hole 221 is larger than the outer diameter of the disc portion 444 of the shaft 441, so that the disc portion 444 can rotate eccentrically in the rotating shaft limiting hole 221, but the first bearing 445 and the second bearing 446 protrude from the disc portion 444 in the radial direction of the opposite sides of the disc portion 444, so that the maximum size of the projection of the eccentric rotating shaft 44 in its axial direction is larger than the outer diameter of the disc portion 444 and larger than the aperture of the rotating shaft limiting hole 221, so that the eccentric rotating shaft 44 will not fall out of the rotating shaft limiting hole 221. The bottom cover 22 is provided with three first bearing 445 mounting grooves, and the first bearings 445 of the three eccentric shafts 44 are installed in the three first bearing 445 mounting grooves one by one and fixedly connected to the bottom cover 22. The top of the funnel assembly 3 is provided with three second bearing 446 mounting grooves, and the second bearings 446 of the three eccentric shafts 44 are installed in the three second bearing 446 mounting grooves one by one and fixedly connected to the funnel assembly 3. The first transmission gear 43 is located in the accommodating cavity 23 and is installed on the first rod portion 442 of the shaft 441 of one of the eccentric shafts 44. By providing three eccentric shafts 44, the funnel assembly 3 can be stably connected to the top cover assembly 2, and the funnel assembly 3 can be driven to rotate smoothly and eccentrically, so as to control the motion trajectory of the funnel assembly 3 when rotating, and improve the safety and reliability of the overall structure.

[0081] For example, Figure 7 As shown, three eccentric shafts 44 can be arranged around the periphery of the funnel 31 opening at the top of the funnel assembly 3. Preferably, the three eccentric shafts 44 are evenly distributed around the periphery of the funnel 31 opening. The bottom cover 22 is provided with a mounting opening 224, which is used to install the shower head 8 and the puncture needle assembly 5 (to be described below). The three eccentric shafts 44 are also arranged around the mounting opening 224 of the bottom cover 22, see Figures 8 to 10 .

[0082] like Figure 1 and Figure 2As shown, the top cover assembly 2 is further provided with a puncture needle assembly 5, which is used to puncture the coffee capsule placed in the funnel assembly 3 when the drip coffee machine is in capsule mode, and to feed brewing water into the coffee capsule. In capsule mode, the coffee capsule is generally placed at a position directly opposite to the opening of the funnel 31. In order to enable the puncture needle 52 to accurately puncture the coffee capsule, the puncture needle 52 can be located directly above the center of the opening of the funnel 31 of the funnel assembly 3, and can be extended through the installation opening 224, see Figures 8 to 10 .

[0083] In some embodiments, Fig. 9 As shown, the bottom cover 22 is provided with a water dripping hole 222, which is located in a circle surrounded by three rotation shaft limiting holes 221 and deviates from the center of the circle (see Figure 5 ). That is, the dripping water outlet 222 is not aligned with the center of the funnel 31 of the funnel assembly 3, but is set away from the funnel 31. In this way, when the drip coffee machine works in the drip mode, the eccentrically arranged dripping water outlet 222 cooperates with the funnel assembly 3 that simulates the shaking of a human hand, so that the brewing water can evenly fall on the coffee powder 10 in the funnel assembly 3, so that the coffee powder 10 is more evenly soaked, thereby improving the brewing effect.

[0084] In the drip coffee machine of the embodiment of the present application, the brewing water is delivered through different components and positions in the drip mode and the capsule mode, respectively, which solves the limitation of the prior art that the brewing water can only be delivered by the piercing needle assembly 5, resulting in uneven brewing of the coffee powder 10 in the drip mode. The present application can achieve good brewing in both different modes and ensure the taste of the coffee.

[0085] In some embodiments, Fig.11 As shown, the drip coffee machine further includes a water diverter valve 6, which is disposed in the accommodating chamber 23. The water diverter valve 6 is connected to the water tank through a pipeline, and is used to provide the water in the water tank to the drip outlet hole 222 and the puncture needle assembly 5 respectively.

[0086] like Fig.12 and Fig.13As shown, the water diverter valve 6 includes a valve body 61 and a hollow valve stem 62. The valve body 61 has a valve cavity 611. The valve body 61 is provided with a water inlet 612, a first water outlet 613 and a second water outlet 614 respectively connected to the valve cavity 611. The water inlet 612 is connected to the water tank of the drip coffee machine through a pipeline. The first water outlet 613 is connected to the drip outlet hole 222, and the second water outlet 614 is connected to the puncture needle assembly 5 in the accommodating cavity 23. A through hole 621 is provided on the hollow valve stem 62, and the hollow valve stem 62 is arranged in the valve cavity 611, and one end of the hollow valve stem 62 located in the valve cavity 611 is connected to the water inlet 612, and the other end of the hollow valve stem 62 is located outside the valve cavity 611, which is used to receive external force, and the hollow valve stem 62 can rotate under the action of external force, so that the through hole 621 can be selectively connected with the first water outlet 613 or the second water outlet 614, so that the brewing water from the water inlet 612 enters the drip outlet hole 222 or the puncture needle assembly 5 respectively. When the through-port 621 is opposite to and connected with the first water outlet 613, the drip coffee machine is in the drip mode, and the water in the water tank can only flow out from the first water outlet 613 to the drip outlet hole 222 after passing through the water diverter valve 6; when the through-port 621 is opposite to and connected with the second water outlet 614, the drip coffee machine is in the capsule mode, and the water in the water tank can only flow into the puncture needle assembly 5 from the second water outlet 614 after passing through the water diverter valve 6, see Fig.11 The present application sets a water diverter valve 6 to selectively provide water in the water tank to the drip outlet hole 222 or the puncture needle assembly 5, so that the drip coffee machine can select different water outlet methods and water outlet positions according to different brewing modes, meet different brewing needs, and improve the taste of the brewed coffee.

[0087] Continue to combine Fig.12 and Fig.13 The valve body 61 is generally cylindrical in structure, with a water inlet 612 at one end in the axial direction and an open end in the axial direction, so that the hollow valve stem 62 can extend from the open end into the valve cavity 611 of the valve body 61. The first water outlet 613 and the second water outlet 614 are respectively arranged on the circumferential side of the valve body 61, and preferably, the two are arranged far apart from each other. The first end of the hollow valve stem 62 has an opening and is connected to the inside of the hollow valve stem 62. The first end of the hollow valve stem 62 extends into the valve cavity 611, and its opening is connected to the water inlet 612. The second end of the hollow valve stem 62 is located outside the valve cavity 611, and a disc-like structure can be provided to facilitate driving the hollow valve stem 62 to rotate.

[0088] In some embodiments, Fig.12 and Fig.13As shown, the water diverter valve 6 also includes a sealing silicone sleeve 63, which is tightly sleeved on the portion of the hollow valve stem 62 located in the valve cavity 611, and is used to seal the hollow valve stem 62 and the cavity wall of the valve cavity 611. The sealing silicone sleeve 63 is provided with an opening 631 corresponding to and connected to the through-hole 621 on the hollow valve stem 62, so as to prevent the sealing silicone sleeve 63 from obstructing the flow of water. In order to achieve a good sealing effect, a plurality of convex ridges 632 can be arranged at intervals on the outer peripheral wall of the sealing silicone sleeve 63 to ensure a tight connection with the cavity wall of the valve cavity 611.

[0089] In some embodiments, Figure 7 and Fig.11 As shown, the drip coffee machine further includes a knob assembly 7, which is disposed on the top cover assembly 2 and can rotate relative to the top cover assembly 2. When the knob assembly 7 rotates, it is used to drive the hollow valve stem 62 to rotate, so that one of the first water outlet 613 and the second water outlet 614 is connected to the water inlet 612.

[0090] For example, Fig.13 and Fig.14 As shown, the knob assembly 7 includes a knob 71 and a knob shaft 72 connected to the knob 71, and a first gear 73 is provided at the end of the knob shaft 72. The knob 71 and the knob shaft 72 can be an integrated structure or a split structure. When the knob 71 is rotated, the knob shaft 72 and the first gear 73 on the knob shaft 72 will be driven to rotate together.

[0091] like Fig.12 and Fig.13 As shown, the second end of the hollow valve stem 62 outside the valve cavity 611 of the valve body 61 is provided with a second gear 64, and the second gear 64 is meshed with the first gear 73. When the knob 71 is rotated, the first gear 73 and the second gear 64 can be driven to rotate, thereby driving the hollow valve stem 62 to rotate. In this way, the water diversion valve 6 is controlled by the knob assembly 7, so that the water in the water tank is selectively supplied to the dripping water outlet hole 222 or the puncture needle assembly 5. The above structure is simple, easy to implement, convenient to operate, and the user experience is better.

[0092] In some embodiments, Figure 1 and Figure 2 As shown, a screw 55 is provided in the accommodating chamber 23. The screw 55 is threadedly connected with the puncture needle assembly 5, so that when the screw 55 rotates under the action of an external force, the puncture needle assembly 5 can be driven to rise and fall, and when the puncture needle assembly 5 is driven to descend, the puncture needle assembly 5 can puncture the coffee capsule placed in the funnel assembly 3.

[0093] For example, Fig.15 and Fig.16As shown, the puncture needle assembly 5 includes a syringe 51, a core 53 and a threaded sleeve 54. A puncture needle 52 is protruding from the bottom of the syringe 51. The puncture needle 52 is used to puncture the coffee capsule when the puncture needle assembly 5 moves downward. The core 53 is arranged in the syringe 51, and a water inlet channel 531 connected to the puncture needle 52 is arranged in the core 53. The water inlet channel 531 extends outward from the core 53 and is used to be connected to the second water outlet 614 through a pipeline, so that the brewing water from the water diversion valve 6 enters the puncture needle assembly 5 through the water inlet channel 531, see Fig.11 The threaded sleeve 54 has an internal thread and is fixed in the core body 53 .

[0094] Continue to combine Fig.15 and Fig.16 The middle of the core 53 has a blind hole 532 extending to the top thereof, and the threaded sleeve 54 is fixed in the blind hole 532. The water inlet channel 531 includes a vertical section parallel to the blind hole 532, the vertical section is arranged away from the middle of the core 53, and the top of the vertical section extends radially outward along the core 53 to form a horizontal section, the end of the horizontal section is used to connect with the second water outlet 614 of the water diversion valve 6. The bottom end of the syringe 51 is sleeved with a silicone sleeve 56, which is used to seal between the inner circumferential wall of the installation port 224 and the outer wall of the bottom end of the syringe 51, and is also used to seal between the puncture needle 52 and the coffee capsule when the puncture needle 52 punctures the coffee capsule to prevent the brewing water from overflowing.

[0095] like Fig.17 As shown, the screw 55 can be rotatably arranged in the accommodating chamber 23 through the rotating shaft bracket 24. The screw 55 is threadedly connected in the threaded sleeve 54. When the screw 55 rotates, it can drive the threaded sleeve 54, the core 53 and the syringe 51 to move downward together, so that the puncture needle 52 punctures the coffee capsule installed in the funnel assembly 3. The method of driving the puncture needle assembly 5 to rise and fall by the screw 55 is simple and reliable.

[0096] In some embodiments, Figure 4 , Figure 5 , and combined with Fig.18 and Fig.19 The driving assembly 4 also includes a fixing plate 45, on which the power component 41 and the driving gear 42 are both arranged. The fixing plate 45 is also provided with a shaft sleeve 451 and a slide rod 452. The shaft sleeve 451 is sleeved on the convex shaft 223 on the bottom cover 22 (see Figure 5 ), and can rotate relative to the convex shaft 223.

[0097] Specifically, the power component 41 can be a motor, which is arranged on the first plate surface of the fixed plate 45, and a reduction mechanism connected to the motor is also arranged on the first plate surface. The driving gear 42 is connected to the motor through the reduction mechanism, and the driving gear 42 is arranged on the second plate surface of the fixed plate 45 opposite to the first plate surface, and the axle of the driving gear 42 is perpendicular to the output shaft of the motor. The shaft sleeve 451 is in the shape of a hollow sleeve, and is arranged on the second plate surface of the fixed plate 45, and is arranged away from the driving gear 42. The sliding rod 452 is arranged on the second plate surface of the fixed plate 45, and is located between the driving gear 42 and the shaft sleeve 451. The axial direction of the sliding rod 452 is parallel to the axial direction of the shaft sleeve 451, and is parallel to the axle direction of the driving gear 42.

[0098] In some embodiments, Fig.13 and Fig.14 As shown, a spiral groove 721 is provided on the outer peripheral wall of the knob shaft 72, and the slide rod 452 is perpendicular to the knob shaft 72 and is embedded in the spiral groove 721 of the knob shaft 72 (see Fig.18 and Fig.19 When the knob 71 is rotated, the knob shaft 72 rotates with the knob 71, and the sliding rod 452 is pushed to move under the action of the spiral groove 721. Since the fixed plate 45 is rotatably connected to the bottom cover 22, when the sliding rod 452 moves under the push of the knob shaft 72, the fixed plate 45 is driven to rotate (or swing) around the convex shaft 223, so that the fixed plate 45 switches between the first position and the second position. When the fixed plate 45 swings to the first position, the driving gear 42 is meshed with the first transmission gear 43, see Fig.18 , so as to realize the eccentric rotation of the funnel assembly 3; when the fixing plate 45 swings to the second position, the driving gear 42 is meshed with the second transmission gear 46 provided in the accommodating cavity 23, and the second transmission gear 46 is connected to the third transmission gear 47 provided on the screw rod 55 for driving the third transmission gear 47 to rotate. When the third transmission gear 47 rotates, it will drive the screw rod 55 to rotate together, so as to realize the lifting and lowering of the puncture needle assembly 5.

[0099] The embodiment of the present application uses a clever structural setting of the driving assembly 4 and cooperates with a special knob assembly 7, so that the driving assembly 4 can not only be used to drive the funnel assembly 3 to rotate eccentrically when the drip coffee machine is in the drip mode, but also can be used to drive the puncture needle assembly 5 to rise and fall in the capsule mode of the drip coffee machine to puncture the coffee capsule. This not only improves the utilization rate of the structural parts, but also simplifies the structure and reduces the production cost. Moreover, by simply rotating the knob 71, it is possible to control whether the driving assembly 4 is used to drive the funnel assembly 3 to rotate or to drive the puncture needle assembly 5 to rise and fall. The operation is simple and convenient, and the user experience is good.

[0100] In some embodiments, when the knob shaft 72 rotates in a first direction at a first angle, the first gear 73 on the knob shaft 72 drives the hollow valve stem 62 to rotate to the through hole 621 thereon to communicate with the first water outlet 613 through the second gear 64, and the knob shaft 72 drives the slide bar 452 to drive the fixed plate 45 to rotate to the first position. The water diverter valve 6 and the drive assembly 4 can be controlled simultaneously by the knob assembly 7, and the water diverter valve 6 is controlled to switch to the water inlet 612 to communicate with the first water outlet 613 for supplying water to the dripping water outlet hole 222, and the fixed plate 45 is also controlled to rotate to the first position where the drive gear 42 of the drive assembly 4 is meshed with the first transmission gear 43 (see Fig.18 ), so that the drip coffee machine is in drip mode.

[0101] When the knob shaft 72 rotates by a second angle in a second direction opposite to the first direction (the absolute values ​​of the first angle and the second angle are equal), the first gear 73 on the knob shaft 72 drives the hollow valve stem 62 to rotate through the second gear 64 until the through hole 621 thereon is connected to the second water outlet 614, and the knob shaft 72 drives the slide bar 452 to drive the fixing plate 45 to rotate to the second position. The water diverter valve 6 and the drive assembly 4 can be controlled simultaneously by the knob assembly 7, and the water diverter valve 6 is controlled to switch to the water inlet 612 to communicate with the second water outlet 614 for supplying water to the puncture needle assembly 5, and the fixing plate 45 is also controlled to rotate to the second position (see FIG. 4 ) where the drive gear 42 of the drive assembly 4 is meshed with the second transmission gear 46. Fig.19 ), so that the drip coffee machine is in capsule mode.

[0102] The drip coffee machine of the embodiment of the present application cleverly utilizes the special structure of the knob assembly 7, so that by turning the knob 71, not only the switching of the water circuit of the water diverter valve 6 can be controlled, but also the driving assembly 4 can be controlled to switch between the driving funnel assembly 3 and the driving puncture needle assembly 5, and the water diverter valve 6 and the driving assembly 4 can both correspond to the drip mode and capsule mode of the drip coffee machine at the same time.

[0103] The first direction may be a clockwise direction or a counterclockwise direction. When the first direction is a clockwise direction, the second direction is a counterclockwise direction; when the first direction is a counterclockwise direction, the second direction is a clockwise direction.

[0104] like Fig.17 As shown, combined with Figure 4, the rotating shaft bracket 24 is fixed in the accommodating cavity 23 and has two assembly holes 241. The upper end of the screw 55 extends out of the threaded sleeve 54 and is assembled in one of the assembly holes 241. The screw 55 can rotate in the assembly hole 241, but cannot move axially relative to the assembly hole 241. The transmission shaft 49 is installed in the other assembly hole 241. The lower end of the transmission shaft 49 is installed with the second transmission gear 46, and the upper end of the transmission shaft 49 is installed with the fourth transmission gear 48. The fourth transmission gear 48 is meshed with the third transmission gear 47. When the second transmission gear 46 is meshed with the driving gear 42 and rotates under the drive of the driving gear 42, the second transmission gear 46 drives the transmission shaft 49 and the fourth transmission gear 48 to rotate together. The fourth transmission gear 48 drives the third transmission gear 47 and the screw 55 to rotate, thereby realizing the lifting and lowering of the puncture needle assembly 5.

[0105] In some embodiments, Fig. 9 As shown, the bottom cover 22 is provided with a mounting opening 224 communicating with the accommodating chamber 23, the puncturing needle assembly 5 is arranged in the accommodating chamber 23, and the lower part of the puncturing needle assembly 5 is penetrated through the mounting opening 224 and can move relative to the mounting opening 224, so that the puncturing needle 52 extends into the funnel assembly 3 to puncture the coffee capsule, see Figure 2 .

[0106] In some embodiments, Fig.10 As shown, a shower head 8 is provided on the side of the bottom cover 22 facing away from the top cover 21, that is, on the lower side of the bottom cover 22. The shower head 8 covers the installation opening 224. The middle of the shower head 8 has a through hole 81 for avoiding the thorn needle 52. An annular groove is formed in the shower head 8 around the through hole 81. A water sprinkling hole 82 is provided at the bottom of the annular groove. Figure 4 The dripping water outlet hole 222 is connected to the annular groove for supplying water into the annular groove. By providing the shower head 8, the brewing water enters the annular groove of the shower head 8 through the dripping water outlet hole 222, and flows out through the water sprinkling hole 82, so that the coffee powder 10 can be more evenly soaked. Moreover, in the capsule mode, the shower head 8 does not hinder the puncturing needle assembly 5 from puncturing the coffee capsule, so that the drip coffee machine can smoothly supply water in both modes.

[0107] The present application sets a water diverter valve 6. When in capsule mode, hot water flows into the puncture needle assembly 5 through the first water outlet 613 via the silicone tube 65, and then flows out from the puncture needle 52. At this time, the hot water is relatively concentrated, which has a better effect on brewing coffee capsules. When in drip mode, hot water flows into the drip outlet hole 222 through the second water outlet 614 via the silicone tube 65, and then enters the interior of the shower head 8, and flows out through the sprinkler hole 82 in a dispersed manner, so that the coffee powder 10 can be more evenly soaked.

[0108] In some embodiments, Fig.17 and Fig. 20As shown, a leak-stop valve 34 is provided at the bottom of the funnel assembly 3. The drip coffee machine further includes a rotary drive mechanism 9, which is used to drive the leak-stop valve 34 to rise and fall, and to open or close the leak-stop valve 34. When the drip coffee machine is working in the drip mode, the leak-stop valve 34 needs to be lifted up so that the coffee liquid brewed in the funnel assembly 3 can flow out through the leak-stop valve 34 and flow into a container for receiving coffee, such as a coffee cup or a coffee pot.

[0109] Example, continue to combine Fig.17 and Fig. 20 The rotary drive mechanism 9 includes a motor 91, a rotary head 92, a leak-stopping push rod 93 and a leak-stopping bracket 94. The motor 91 is connected to the rotary head 92 and is used to drive the rotary head 92 to rotate. The rotary head 92 is provided with a first slide rail 922. The first slide rail 922 is used to push the leak-stopping push rod 93 to move in a direction close to or away from the leak-stopping bracket 94 when the rotary head 92 rotates, and push the leak-stopping bracket 94 to push the leak-stopping valve 34 up or down to achieve opening and closing.

[0110] like Fig.23 As shown, the first slide rail 922 is arc-shaped, and one end of the first slide rail 922 has a first guide slope 9221. When the rotating head 92 rotates, the leak-stopping push rod 93 can slide onto the first slide rail 922 through the first guide slope 9221, so that the leak-stopping push rod 93 moves toward the leak-stopping bracket 94, and pushes the leak-stopping bracket 94 to move toward the leak-stopping valve 34. The leak-stopping bracket 94 is provided with a second guide slope 9411 on the side facing the leak-stopping valve 34. When the leak-stopping bracket 94 moves toward the leak-stopping valve 34, the leak-stopping valve 34 can move upward along the second guide slope 9411 and be lifted, and the leak-stopping valve 34 is opened. When the leak-stopping bracket 94 moves in a direction away from the leak-stopping valve 34, the leak-stopping valve 34 gradually moves downward along the second guide slope 9411 and descends, and the leak-stopping valve 34 is closed.

[0111] The present application can automatically control the opening and closing of the stop-leak valve 34 by setting a rotating drive mechanism 9, without the need to lift the stop-leak valve 34 with the top of a container such as a coffee cup or a coffee pot as in the prior art to open the stop-leak valve 34. This can avoid the problem of poor liquid discharge caused by the eccentric rotation of the funnel assembly 3, which causes the stop-leak valve 34 to detach from the top of the cavity and cannot remain in a lifted state.

[0112] In some embodiments, the funnel assembly 3 includes a funnel 31 and a funnel support 32, and the funnel 31 is arranged on the funnel support 32. A leak-proof valve 34 is arranged at the bottom of the funnel 31, and is used to control the discharge of the brewed coffee liquid in the funnel 31. The funnel support 32 is connected to the top cover assembly 2, and can drive the funnel 31 to rotate eccentrically relative to the top cover assembly 2 under the action of the driving assembly 4. A push rod groove 312 is arranged on the top periphery of the funnel 31, see Fig.17 .like Fig.24 and Fig.25 As shown, the funnel bracket 32 ​​is provided with a push rod hole 322 and a locking push rod 33, and the upper end of the locking push rod 33 can be extended through the push rod hole 322 to be exposed. When the funnel 31 is mounted on the funnel bracket 32, the push rod groove 312 is opposite to the push rod hole 322, and when the locking push rod 33 moves upward, its upper end can be extended into the push rod groove 312, locking the funnel 31 on the funnel bracket 32, so that the funnel 31 can rotate eccentrically with the funnel bracket 32.

[0113] In some embodiments, Fig.23 As shown, a spiral second slide rail 923 is also provided on the rotating head 92. The second slide rail 923 is used to push the locking push rod 33 to move up and down.

[0114] like Fig.26 As shown, the lower end of the locking push rod 33 abuts against the spiral surface of the second slide rail 923. When the rotating head 92 rotates, the second slide rail 923 can push the locking push rod 33 to move up and down. When the second slide rail 923 pushes the locking push rod 33 to move upward, the upper end of the locking push rod 33 passes through the push rod hole 322 and extends into the push rod groove 312, thereby locking the funnel 31 on the funnel bracket 32. Figure 1 , Fig.17 and Fig.26 When the second slide rail 923 drives the locking push rod 33 to move downward, the lower end of the locking push rod 33 escapes from the push rod groove 312 and the push rod hole 322, thereby releasing the lock between the funnel 31 and the funnel bracket 32. Figure 2 and Fig. 27 .

[0115] The embodiment of the present application can simultaneously control the opening and closing of the leak-stop valve 34 and the locking and unlocking of the funnel 31 through a rotary drive mechanism 9, and has an ingenious structural design and is easy to operate.

[0116] For example, Fig.21 As shown, the two opposite sides of the stop valve 34 are respectively protruded with shaft portions 341. Fig. 22 As shown, the leak-stopping bracket 94 is a Y-shaped structure arranged horizontally, that is, it has two opposite legs 941, and the front ends of the two legs 941 are respectively formed with second guide slopes 9411. The two shafts 341 of the leak-stopping valve 34 are arranged on the second guide slopes 9411, and when the leak-stopping bracket 94 is pushed by the rotating head 92, the two legs 941 can slide up or down along the second guide slopes 9411, see Fig.28 .

[0117] like Fig.23As shown, the rotating head 92 includes a main body 921, and the main body 921 has a vertical surface on one side facing the stop valve 34. The first slide rail 922 and the second slide rail 923 are both arranged on the vertical surface, and the outer contour of the vertical surface can be circular. The first slide rail 922 can be arranged near the periphery of the vertical surface and be in an arc shape. The second slide rail 923 is arranged near the center of the vertical surface and gradually extends outward in a spiral from the center of the vertical surface, so that the farther the second slide rail 923 is from the center, the larger the radius of the circle in which it is located, and the closer it is to the center, the smaller the radius of the circle in which it is located. In this way, when the rotating head 92 rotates, the second slide rail 923 thereon pushes the locking push rod 33 to rise and fall through the spiral surface, so that the locking push rod 33 locks and unlocks the funnel 31 on the funnel bracket 32. It is understandable that only the helical surface of the second slide rail 923 exposed outside the second slide rail 923 can act on the locking push rod 33, and the first slide rail 922 should avoid the exposed helical surface so that the two slide rails can realize their respective functions without being interfered by each other.

[0118] In some embodiments, Fig. 20 As shown, the funnel assembly 3 further includes a funnel cover 35, which includes a funnel inner cover 351 and a funnel outer cover 352. The funnel inner cover 351 and the funnel outer cover 352 can be fixedly connected by screws, and corresponding through holes 353 are provided on the funnel inner cover 351 and the funnel outer cover 352. The funnel cover 35 is rotatably connected to the bottom cover 22 through the eccentric rotating shaft 44, and the through hole 353 on the funnel cover 35 corresponds to the mounting opening 224 on the bottom cover 22, so that the brewing water sent by the shower head 8 or the puncture needle assembly 5 can enter the funnel 31 through the through hole 353. Specifically, the second bearing 446 of the eccentric rotating shaft 44 is fixed on the funnel outer cover 352.

[0119] like Fig.25 As shown, the main body of the funnel bracket 32 ​​is roughly in the shape of an arc plate and is adapted to the funnel 31 having a cylindrical surface. The top of the funnel bracket 32 ​​extends laterally to form a mounting plane 321, and the push rod hole 322 is arranged on the mounting plane 321. The top periphery of the funnel 31 is arranged on the mounting plane 321. The top of the funnel bracket 32 ​​is fixed to the funnel cover 35. When the funnel 31 is locked on the funnel bracket 32, the funnel cover 35 covers the top opening of the funnel 31, so that the funnel 31 is combined with the funnel cover 35. When the funnel cover 35 rotates eccentrically driven by the eccentric rotating shaft 44, the funnel bracket 32 ​​drives the funnel 31 to rotate eccentrically.

[0120] like Fig.17 As shown, a filter screen 311 is provided in the funnel 31. The bottom of the funnel 31 is sealed by a funnel bottom cover 37, and a bypass hole 371 for bypassing the leak-stopping valve 34 is provided on the funnel bottom cover 37. Fig. 20 .

[0121] Continue to combine Fig. 20 The funnel assembly 3 also includes a funnel support seat 36, which is arranged at the rear side of the funnel support 32, and the two are fixedly connected, and enclose a chamber for accommodating the motor 91, the rotating head 92, the leak-stopping push rod 93, the locking push rod 33 and the push rod support 38. The funnel support 32 is provided with a hole 323 for the leak-stopping push rod 93 to extend. Among them, the locking push rod 33 is arranged on the funnel support 32 through the push rod support 38, and the push rod support 38 is used to guide and limit the movement of the locking push rod 33, so as to ensure that the locking push rod 33 is lifted and lowered according to a predetermined trajectory.

[0122] The following describes the working process of the drip coffee machine in drip mode and capsule mode respectively:

[0123] Drip mode: Figure 1 As shown, the filter 311 is placed in the funnel 31, and the coffee powder 10 is placed in the filter 311. The knob 71 is twisted in the first direction, the knob 71 drives the knob shaft 72 to rotate, the first gear 73 drives the second gear 64 to rotate, and the second gear 64 drives the hollow valve stem 62 to rotate until its through port 621 is connected to the first water outlet 613, and the first water outlet 613 is connected to the drip outlet hole 222 on the bottom cover 22 through the silicone tube 65; at the same time, the motor 91 drives the rotating head 92 to rotate counterclockwise, and the second slide rail 923 on the rotating head 92 pushes the locking push rod 33 to move upward, and the upper end of the locking push rod 33 passes through the push rod hole 322 on the funnel 31 and extends into the push rod slot 312 of the funnel bracket 32, thereby locking the funnel 31 in place. The funnel bracket 32 ​​is prevented from falling off; the first slide rail 922 of the rotating head 92 pushes the leak-stopping bracket 94 to move in the direction of the leak-stopping valve 34, and the second guide slide slope 9411 of the leak-stopping bracket 94 pushes the shaft portions 341 on both sides of the leak-stopping valve 34 upward, thereby lifting the leak-stopping valve 34 and opening it, so that the coffee liquid can flow out through the leak-stopping valve 34 when brewing coffee later; the knob 71 is twisted in the first direction to drive the water diversion valve 6 to rotate and switch the water flow path, and at the same time, the spiral groove 721 of the knob shaft 72 drives the slide rod 452 to swing to the right, so that the fixing plate 45 swings to the right, and the driving gear 42 is meshed with the first transmission gear 43 for transmission, see Fig.18 The first transmission gear 43 drives the funnel cover 35 and the funnel bracket 32 ​​and the funnel 31 fixedly connected to the funnel cover 35 to rotate through the eccentric rotating shaft 44. Because the three eccentric rotating shafts 44 are triangularly distributed to fix the funnel cover 35, the funnel bracket 32 ​​drives the funnel 31 to rotate not around a fixed axis, thereby achieving an effect of simulating human hand shaking; the water supply pump is started, and the water in the water tank flows into the drip outlet hole 222 through the water inlet 612, the through port 621 and the first water outlet 613 of the water diversion valve 6 in turn, and is sprayed by the shower head 8 onto the coffee powder 10 in the filter 311, so that the coffee powder 10 can be fully extracted, providing the user with coffee liquid with better taste.

[0124] Capsule mode: Figure 2 As shown, the filter 311 is taken out from the funnel 31, and the capsule holder 39 is placed in the funnel 31, and the coffee capsule is placed in the capsule holder 39. The knob 71 is twisted in the second direction, the knob 71 drives the knob shaft 72 to rotate, the first gear 73 drives the second gear 64 to rotate, and the second gear 64 drives the hollow valve stem 62 to rotate until its through opening 621 is connected with the second water outlet 614, and the second water outlet 614 is connected with the water inlet channel 531 on the puncture needle assembly 5 through the silicone tube 65; at the same time, the spiral groove 721 on the knob shaft 72 drives the slide bar 452 to swing leftward, so that the fixing plate 45 swings leftward, and the driving gear 42 is meshed with the second transmission gear 46 for transmission, see Fig.19 The second transmission gear 46 drives the fourth transmission gear 48 to rotate through the transmission shaft 49, the fourth transmission gear 48 drives the third transmission gear 47 to rotate, the third transmission gear 47 drives the screw 55 to rotate, and when the screw 55 rotates, the puncture needle assembly 5 is driven to move downward to puncture the coffee capsule, and the water in the water tank flows into the puncture needle assembly 5 through the water inlet 612, the through port 621 and the second water outlet 614 of the water diversion valve 6 in sequence, and is brewed into the coffee capsule through the puncture needle 52 to realize capsule coffee brewing. When the coffee is brewed, the motor is reversed, and the driving gear 42 is reversed, and the screw 55 drives the puncture needle assembly 5 to move upward for recovery.

[0125] The drip coffee machine of the embodiment of the present application utilizes the driving component 4 to drive the funnel component 3 to shake, so that the coffee powder 10 can be fully soaked, simulating hand-brewed coffee, so that the concentration and extraction degree of the coffee are better, and the quality of the coffee liquid is higher; and the driving component 4 of the drip coffee machine of the embodiment of the present application can also control the puncture needle component 5 to automatically retract and retract, without the need for manual puncture, making the user's operation more labor-saving and convenient.

[0126] The above description is intended to be illustrative rather than restrictive, and those skilled in the art may make changes, modifications, substitutions and variations to the above embodiments within the scope of the present disclosure. Moreover, the above examples (or one or more of them) may be used in combination with each other, and it is contemplated that these embodiments may be combined with each other in various combinations or permutations.

Claims

1. A drip coffee machine, comprising a machine body (1) and a top cover assembly (2) arranged on the machine body (1), characterized in that: The drip coffee machine also includes: A funnel assembly (3) arranged on the top cover assembly (2); A driving assembly (4), comprising a power component (41), a driving gear (42), a first transmission gear (43) and an eccentric rotating shaft (44); one end of the eccentric rotating shaft (44) is rotationally connected to the top cover component (2), and the other end of the eccentric rotating shaft (44) is rotationally connected to the funnel component (3); the driving gear (42) is connected to the power component (41) and rotates under the action of the power component (41); the driving gear (42) can also mesh with the first transmission gear (43) to drive the first transmission gear (43) to rotate; the first transmission gear (43) is arranged on the eccentric rotating shaft (44); when the first transmission gear (43) rotates, it drives the eccentric rotating shaft (44) to rotate; when the eccentric rotating shaft (44) rotates, it drives the funnel component (3) to rotate eccentrically relative to the top cover component (2); The eccentric rotating shaft (44) comprises a shaft (441), a first bearing (445) and a second bearing (446); the shaft (441) comprises a first rod portion (442) and a second rod portion (443) which are non-coaxially arranged and connected to each other; the first bearing (445) is mounted on the first rod portion (442) and fixedly connected to the top cover assembly (2); the second bearing (446) is mounted on the second rod portion (443) and fixedly connected to the funnel assembly (3); the first transmission gear (43) is fixed on the first rod portion (442); The top cover assembly (2) comprises a top cover (21) and a bottom cover (22); the top cover (21) is buckled onto the bottom cover (22) and encloses the bottom cover (22) to form a receiving cavity (23); The bottom cover (22) is provided with three rotating shaft limiting holes (221) located on the same circular ring; the driving assembly (4) comprises three eccentric rotating shafts (44); the shafts (441) of the three eccentric rotating shafts (44) are respectively limited in the three rotating shaft limiting holes (221) in a one-to-one correspondence, and the shafts (441) can rotate eccentrically in the rotating shaft limiting holes (221); the first bearings (445) of the three eccentric rotating shafts (44) are all located in the accommodating cavity (23) and fixedly connected to the bottom cover (22); the second bearings (446) of the three eccentric rotating shafts (44) are all located outside the accommodating cavity (23) and fixedly connected to the funnel assembly (3); the first transmission gear (43) is located in the accommodating cavity (23) and is mounted on the first rod portion (442) of the shaft (441) of one of the eccentric rotating shafts (44).

2. The drip coffee machine according to claim 1, characterized in that: The bottom cover (22) is provided with a water dripping hole (222); the water dripping hole (222) is located in a circle surrounded by the three rotating shaft limiting holes (221) and deviates from the center of the circle; and / or The drip coffee machine further comprises a water diversion valve (6), the water diversion valve (6) comprising a valve body (61) and a hollow valve stem (62), the valve body (61) having a valve cavity (611) therein, the valve body (61) being provided with a water inlet (612), a first water outlet (613) and a second water outlet (614) respectively connected to the valve cavity (611), the water inlet (612) being connected to a water tank of the drip coffee machine, the first water outlet (613) being connected to the drip water outlet hole (222), and the second water outlet (614) being connected to the puncture needle assembly (222) in the accommodating cavity (23). 5) communication; a through-hole (621) is provided on the hollow valve stem (62), the hollow valve stem (62) is arranged in the valve cavity (611), and one end of the hollow valve stem (62) located in the valve cavity (611) is communicated with the water inlet (612), and the hollow valve stem (62) can rotate under the action of an external force so that the through-hole (621) can selectively communicate with the first water outlet (613) or the second water outlet (614), so that the brewing water from the water inlet (612) enters the dripping water outlet hole (222) or the puncture needle assembly (5) respectively.

3. The drip coffee machine according to claim 2, characterized in that: The drip coffee machine further comprises a knob assembly (7), wherein the knob assembly (7) comprises a knob (71) and a knob shaft (72) connected to the knob (71), and a first gear (73) is disposed at the end of the knob shaft (72); The other end of the hollow valve stem (62) is located outside the valve cavity (611) of the valve body (61) and is provided with a second gear (64); the second gear (64) is meshed with the first gear (73); when the knob (71) is rotated, the first gear (73) and the second gear (64) are driven to rotate, thereby driving the hollow valve stem (62) to rotate.

4. The drip coffee machine according to claim 3, characterized in that: A screw (55) is provided in the accommodating chamber (23), and the screw (55) is threadedly connected to the puncturing needle assembly (5), so that when the screw (55) rotates, the puncturing needle assembly (5) can be driven to move downward and puncture the coffee capsule installed in the funnel assembly (3).

5. The drip coffee machine according to claim 4, characterized in that: The driving assembly (4) further comprises a fixing plate (45), the power component (41) and the driving gear (42) are both arranged on the fixing plate (45), and the fixing plate (45) is also provided with a shaft sleeve (451) and a sliding rod (452); the shaft sleeve (451) is sleeved on a convex shaft on the bottom cover (22) and can rotate relative to the convex shaft; A spiral groove (721) is provided on the outer peripheral wall of the knob shaft (72); the slide bar (452) is perpendicular to the knob shaft (72) and is embedded in the spiral groove (721) of the knob shaft (72), so that when the knob (71) is rotated, the slide bar (452) can be pushed to drive the fixed plate (45) to rotate around the convex shaft, so that the fixed plate (45) switches between a first position and a second position; when the fixed plate (45) is in the first position, the drive gear (42) is meshed with the first transmission gear (43); when the fixed plate (45) is in the second position, the drive gear (42) is meshed with a second transmission gear (46) provided in the accommodating cavity (23); the second transmission gear (46) is in transmission connection with a third transmission gear (47) provided on the screw rod (55), and is used to drive the third transmission gear (47) to rotate.

6. The drip coffee machine according to claim 5, characterized in that: When the knob shaft (72) rotates in a first direction at a first angle, the first gear (73) on the knob shaft (72) drives the hollow valve stem (62) to rotate through the second gear (64) until the through opening (621) thereon is connected to the first water outlet (613), and the knob shaft (72) drives the sliding rod (452) to drive the fixing plate (45) to rotate to the first position; When the knob shaft (72) rotates in the second direction to a second angle, the first gear (73) on the knob shaft (72) drives the hollow valve stem (62) to rotate through the second gear (64) until the through opening (621) thereon is connected to the second water outlet (614), and the knob shaft (72) drives the sliding rod (452) to drive the fixing plate (45) to rotate to the second position.

7. The drip coffee machine according to claim 2, characterized in that: The bottom cover (22) is provided with a mounting opening (224) which is in communication with the accommodating cavity (23); the lower portion of the puncture needle assembly (5) is inserted through the mounting opening (224) and is movable relative to the mounting opening (224); A shower head (8) for sealing the mounting opening (224) is provided on the lower side of the bottom cover (22); a through hole (81) for avoiding the puncture needle (52) of the puncture needle assembly (5) is provided in the middle of the shower head (8); an annular groove surrounding the through hole (81) is formed in the shower head (8); a water sprinkling hole (82) is provided at the bottom of the annular groove; the dripping water outlet hole (222) is communicated with the annular groove for supplying water into the annular groove.

8. The drip coffee machine according to claim 1, characterized in that: A leak-proof valve (34) is provided at the bottom of the funnel assembly (3); The drip coffee machine further comprises a rotary drive mechanism (9), wherein the rotary drive mechanism (9) is used to drive the stop-leak valve (34) to rise and fall, and to open or close the stop-leak valve (34).

9. The drip coffee machine according to claim 8, characterized in that: The rotary drive mechanism (9) comprises a motor (91), a rotary head (92), a leak-stopping push rod (93) and a leak-stopping bracket (94); the motor (91) is connected to the rotary head (92) and is used to drive the rotary head (92) to rotate; a first slide rail (922) is provided on the rotary head (92); one end of the first slide rail (922) has a first guide inclined surface (9221); when the rotary head (92) rotates, the first slide rail (922) can push the leak-stopping push rod (93) toward the leak-stopping bracket via the first guide inclined surface (9221). (94) moves and pushes the leak-stop bracket (94) to move toward the leak-stop valve (34); a second guide sliding slope (9411) is provided on the side of the leak-stop bracket (94) facing the leak-stop valve (34); when the leak-stop bracket (94) moves toward the leak-stop valve (34), the leak-stop valve (34) can move onto the second guide sliding slope (9411) and be lifted; when the leak-stop bracket (94) moves in a direction away from the leak-stop valve (34), the leak-stop valve (34) gradually moves out from the second guide sliding slope (9411) and descends.

10. The drip coffee machine according to claim 9, characterized in that: The rotating head (92) is also provided with a spiral second slide rail (923); The funnel assembly (3) comprises a funnel (31) and a funnel bracket (32); a push rod groove (312) is provided on the top periphery of the funnel (31); a push rod hole (322) and a locking push rod (33) are provided on the funnel bracket (32); the lower end of the locking push rod (33) abuts against the spiral surface of the second slide rail (923); when the funnel (31) is mounted on the funnel bracket (32), the push rod groove (312) and the push rod hole (322) are opposite to each other; When the rotating head (92) rotates, the second slide rail (923) can push the locking push rod (33) to move up and down, so that the upper end of the locking push rod (33) can pass through the push rod hole (322) and extend into the push rod groove (312), thereby locking the funnel (31) on the funnel bracket (32), or the upper end of the locking push rod (33) can be released from the push rod groove (312) and the push rod hole (322), thereby releasing the lock between the funnel (31) and the funnel bracket (32).

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