Powder feeding and distributing mechanism and coffee machine

Abstract

The invention relates to the technical field of coffee machines, in particular to a powder feeding and distributing mechanism and a coffee machine. The invention provides a powder feeding and distributing mechanism. The powder feeding and distributing mechanism comprises a bean grinding assembly, a gear assembly, a powder feeding channel assembly, a brewing assembly and a funnel assembly. A bean grinding motor drives a conical cutter transmission shaft to rotate, namely, a bean grinding conical cutter coaxially connected with the conical cutter transmission shaft is driven to rotate, and coffee beans are ground into coffee powder; the conical cutter transmission shaft is in gear fit with the gear assembly, and the gear assembly drives the powder bowl to rotate in the funnel assembly. A powder pressing piston capable of moving up and down is arranged in the brewing assembly and can compact coffee powder in a powder bowl; the powder bowl is axially clamped in a containing cavity with an upward opening of the funnel assembly through a limiting structure; the powder bowl gear is used for being connected with the gear assembly to drive the powder bowl to rotate circumferentially. The bean grinding motor synchronously drives the bean grinding conical cutter and the powder bowl to rotate, powder feeding and powder distribution are synchronous, another rotating motor is not needed to drive powder distribution, the structure is simple, and cost is saved.

Description

TECHNICAL FIELD

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

[0002] In the related art, referring to the patent application with publication (announcement) number: CN219920846U, in order to realize automatic powder spreading and pressing, the user needs to first grind coffee powder on a coffee grinder, and use a coffee funnel to collect the coffee powder while the coffee grinder is working. At this time, the shape of the coffee powder in the powder bowl in the coffee funnel is a naturally formed cone. Then the user needs to place the coffee funnel containing the coffee powder on the automatic powder spreading and pressing machine described in this patent to spread the powder (flatten the conical coffee powder) and press the powder (compact the loose coffee powder). In order to realize the powder spreading and pressing technical solution of this patent, in addition to the need for a coffee grinder motor to drive the coffee grinder to rotate, a rotary motor is also needed to drive the powder spreading hammer to rotate. The powder bowl containing the coffee powder is fixed and cannot be moved. This is also the automatic powder spreading technical solution adopted by most coffee machines on the market. The related technical solution requires at least two special motors to complete the actions of grinding and spreading the powder, which is too high in cost and results in a large size of the coffee machine. Therefore, the automatic powder spreading and pressing device of the coffee machine in the related art has certain defects. SUMMARY

[0003] In order to overcome the defects of the related art, the present application provides a powder falling and spreading mechanism and a coffee machine.

[0004] In a first aspect, the present application provides a powder falling and spreading mechanism, which comprises a coffee grinding assembly, a gear assembly, a powder falling channel assembly, a funnel assembly and a powder bowl. The coffee grinding assembly is provided with a coffee grinder motor, a coffee grinder cone knife and a cone knife transmission shaft. The coffee grinder motor drives the cone knife transmission shaft to rotate, and the cone knife transmission shaft and the coffee grinder cone knife are coaxially connected. The cone knife transmission shaft is in transmission connection with the gear assembly, and the gear assembly is in transmission connection with the powder bowl, so that the powder bowl rotates in the funnel assembly. The powder outlet of the powder falling channel assembly faces the powder bowl. The funnel assembly is provided with an upwardly open accommodating cavity, and the powder bowl is in circumferential rotation connection with the funnel assembly through a limiting structure. The powder bowl comprises a powder bowl gear and a powder bowl body, the powder bowl gear is arranged at the top of the powder bowl, and the powder bowl gear is used to drive the circumferential rotation of the powder bowl by being in transmission connection with the gear assembly.

[0005] Further, the coffee grinding assembly further comprises a motor worm, a worm gear and a transmission shaft gear. The coffee grinder motor and the motor worm are coaxially connected, the motor worm and the worm gear are engaged at the upper part, and the motor worm drives the worm gear to rotate. The lower part of the worm gear is engaged with the transmission shaft gear, and the coffee grinder cone knife and the transmission shaft gear are coaxially rotated with the cone knife transmission shaft. The coffee grinder cone knife is arranged at the top of the cone knife transmission shaft.

[0006] Further, the gear assembly comprises a powder bowl driving gear, a powder bowl transmission gear A, a powder bowl transmission gear B, a powder bowl transmission gear C, the powder bowl driving gear is connected at the bottom of the cone knife transmission shaft and rotates coaxially with the cone knife transmission shaft; the powder bowl driving gear is engaged with the powder bowl transmission gear A, and the powder bowl driving gear drives the powder bowl transmission gear A to rotate; the powder bowl transmission gear A is engaged with the powder bowl transmission gear B, and the powder bowl transmission gear A drives the powder bowl transmission gear B to rotate; the powder bowl transmission gear B is engaged with the powder bowl transmission gear C, and the powder bowl transmission gear B drives the powder bowl transmission gear C to rotate; the powder bowl transmission gear C is engaged with the powder bowl gear, and the powder bowl transmission gear C drives the powder bowl gear to rotate.

[0007] Further, the limiting structure comprises an annular groove provided on the outer wall of the powder bowl body and a spring glass bead provided on the inner wall of the funnel assembly, and the annular groove is positioned corresponding to the spring glass bead; when the powder bowl rotates, the annular groove of the powder bowl body rotates along the spring glass bead.

[0008] Further, the limiting structure further comprises a clamping groove provided on the top of the powder bowl body and a limiting protruding ring provided on the top of the funnel assembly, and the clamping groove is clamped with the limiting protruding ring.

[0009] Further, the lower powder channel assembly comprises a lower powder channel A and a lower powder channel B, the lower powder channel A and the lower powder channel B are connected by sliding through the first elastic limiting structure, the lower powder channel B is sleeved on the outer wall of the lower powder channel A, and under the action of the first elastic limiting structure, the lower powder channel B can slide along the lower powder channel A.

[0010] Further, the lower powder distribution mechanism further comprises a brewing assembly, the brewing assembly is internally provided with a powder channel cover plate, a powder pressing motor, a lead screw and a powder pressing piston, the lead screw is fixedly connected with the powder pressing piston at the bottom, the powder pressing motor drives the lead screw to rotate up and down through gear cooperation, and drives the powder pressing piston to move up and down; when the powder pressing piston moves up or down to a trigger position, the powder pressing motor stops working. The powder channel cover plate is rotationally connected with the brewing assembly shell, and the powder channel cover plate can rotate by a certain angle in the brewing assembly; during the upward movement of the powder pressing piston, the lower powder channel B pushes open the powder channel cover plate under the action of the first elastic limiting structure to open the lower powder channel B; when the powder pressing piston moves down to the trigger position, the powder pressing piston drives the powder channel cover plate to rotate to close the lower powder channel B.

[0011] Further, the bottom of the powder bowl body extends in an open shape from bottom to top, the powder cake push plate is arranged at the bottom of the open extension structure, the powder cake push plate is provided with a second elastic limiting structure, and the second elastic limiting structure enables the powder cake push plate to move vertically along the powder bowl body; the funnel assembly is provided with a push plate button, the powder cake push plate is pushed upward through the push plate button, so that the coffee powder cake residues adhered to the inner wall of the powder bowl body are separated from the inner wall of the powder bowl body.

[0012] Furthermore, the powder pusher extends downward to have a first coffee outlet, and the bottom of the funnel assembly has a second coffee outlet that communicates with the first coffee outlet. The first coffee outlet rotates circumferentially relative to the second coffee outlet.

[0013] Secondly, this application provides a coffee machine that includes the aforementioned powder dispensing mechanism.

[0014] This application has at least one of the following beneficial effects: 1. In this application, the grinding motor synchronously drives the grinding cone and the coffee bowl to rotate, achieving simultaneous coffee grounds distribution and tamping, eliminating the need for a separate rotary motor to drive the tamping piston. This simplifies the structure and saves costs. The tamping piston flattens the coffee grounds in the coffee bowl. Pressurized hot water from the water tank flows into the coffee bowl through the inlet to brew and extract the coffee. The coffee liquid flows out from the second coffee outlet below the coffee bowl to the receiving hopper and then out through the outlet tube, where it is collected by a coffee cup. This application automatically places coffee grounds into the coffee bowl and automatically distributes, tamps, and extracts the coffee.

[0015] 2. In this application, the pressing motor drives the pressing piston to move, which, in conjunction with the powder channel cover and the telescopic powder dispensing channel, enables the opening and closing of the powder channel. This application utilizes the cooperation of a spring-loaded glass bead and a limiting groove on the periphery of the powder bowl to achieve relative rotational connection between the powder bowl and the funnel assembly, as well as automatic powder dispensing. The push-plate button at the bottom of the funnel assembly, in conjunction with the powder press push plate, facilitates the removal of powder cakes stuck to the bottom of the powder bowl, making it easy to clean the powder cakes inside the powder bowl. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application.

[0017] Figure 2 This is a schematic diagram showing the overall structure of an embodiment of this application.

[0018] Figure 3 This is an exploded structural diagram of the powder feeding channel assembly according to an embodiment of this application.

[0019] Figure 4 This is a schematic diagram of the exploded structure of the brewing components according to an embodiment of this application.

[0020] Figure 5 This is a schematic diagram of the opening structure of the powder channel cover plate in an embodiment of this application.

[0021] Figure 6 This is a cross-sectional structural diagram of the brewing components according to an embodiment of this application.

[0022] Figure 7 This is a schematic diagram of the powder channel cover closure structure according to an embodiment of this application.

[0023] Figure 8This is a schematic cross-sectional view of the powder channel cover plate in an embodiment of this application.

[0024] Figure 9 This is a schematic cross-sectional view of the closed powder channel cover according to an embodiment of this application.

[0025] Figure 10 This is a schematic diagram of the gear assembly structure according to an embodiment of this application.

[0026] Figure 11 This is a schematic diagram of the powder bowl and funnel assembly structure according to an embodiment of this application.

[0027] Figure 12 This is a schematic diagram showing the disassembled structure of the powder bowl and funnel assembly according to an embodiment of this application.

[0028] Figure 13 This is a schematic diagram of the exploded structure of the powder bowl and funnel assembly according to an embodiment of this application.

[0029] Figure 14 This is a schematic cross-sectional view of the funnel assembly and powder bowl when the powder pusher plate is not pushed in the embodiment of this application.

[0030] Figure 15 This is a schematic cross-sectional view of the funnel assembly and powder bowl when pushing the powder cake pusher in an embodiment of this application.

[0031] Figure 16 This is a schematic diagram of the cross-sectional structure of the powder bowl when the powder pusher plate is not pushed in the embodiment of this application.

[0032] Figure 17 This is a schematic diagram of the powder bowl structure when the powder pusher plate is pushed according to an embodiment of this application.

[0033] Reference numerals: 10, grinding assembly; 20, gear assembly; 30, coffee grounds delivery channel assembly; 40, brewing assembly; 50, funnel assembly; 60, brewing coffee powder; 101, grinding motor; 102, motor worm gear; 103, worm wheel; 104, grinding cone; 105, cone drive shaft; 106, drive shaft gear; 201, portafilter basket drive gear; 202, portafilter basket drive gear A; 203, portafilter basket drive gear B; 204, portafilter basket drive gear C; 301, coffee grounds delivery channel A; 302, coffee grounds delivery channel B; 303, coffee grounds spring. Spring; 304, Screw A; 305, Connecting Post A; 306, Screw Hole A; 307, Connecting Block B; 308, Through Hole B; 401, Gearbox Upper Cover; 402, Gearbox Lower Cover; 403, Motor Gear; 404, Lead Screw Drive Gear; 405, Lead Screw Gear; 406, Powder Pressing Motor; 407, Lead Screw; 408, Piston Right Cover; 409, Piston Left Cover; 410, Powder Pressing Piston; 411, Powder Channel Cover Plate; 412, Cover Plate Shaft; 413, Magnet; 414, Piston Lower Dead Center Sensing Plate; 415, Piston Upper Dead Center Sensing Plate Plate; 416, Funnel retaining ring; 4020, Inlet; 4021, Guide groove; 501, Powder cup; 4101, Upper rounded corner surface of piston; 4102, Side rounded corner surface of piston; 4111, Upper surface of cover plate; 4112, Side arc surface of cover plate; 5011, Powder press plate; 5012, Powder cup body; 5013, Press plate spring; 5014, Screw C; 5015, Press plate button; 5016, Spring bead; 5017, Handle; 5018, Mounting part; 5019, Mounting hole; 5020, Mounting post; 5021, Guide... 5022, Portion cup gear; 5031, Annular groove; 5032, Connecting post C; 5033, Screw hole C; 5034, Protrusion; 5041, Rotating groove; 5042, Column; 5050, Rotating shaft; 5051, Rotating part; 5052, Push plate part; 5053, Button part; 5054, Baffle; 5062, Slot; 5063, Limiting ring; 5064, Center groove; 5071, First coffee outlet; 5072, Second coffee outlet; 5081, Connection mounting hole; 5082, Cover plate mounting hole. Detailed Implementation

[0034] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0035] It should be noted that if the embodiments of this application involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0036] Furthermore, if the embodiments of this application involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0037] The following is in conjunction with the appendix Figures 1-17 This application will be described in further detail.

[0038] Firstly, this application provides a powder dispensing mechanism, referring to... Figure 1 It includes a grinding assembly 10, a gear assembly 20, a flour delivery channel assembly 30, a brewing assembly 40, and a funnel assembly 50.

[0039] Reference Figure 10 The coffee grinding assembly 10 includes a grinding motor 101, a grinding conical blade 104, and a conical blade drive shaft 105. The grinding motor 101 drives the conical blade drive shaft 105 to rotate, which in turn drives the grinding conical blade 104, coaxially connected to the drive shaft, to grind the coffee beans into coffee powder. The conical blade drive shaft 105 also engages with a gear assembly 20, causing the gear assembly 20 to rotate. The gear assembly 20 then drives the coffee hopper 501 to rotate within the coffee funnel assembly 50. In this application, the grinding motor 101 synchronously drives the grinding conical blade 104 and the coffee hopper 501 to rotate, achieving synchronous coffee powder distribution without the need for a separate rotary motor to drive the tamping piston. This simplifies the structure and saves costs.

[0040] The coffee powder feeding channel assembly 30 is set at an angle, with the upper inlet end connected to the coffee grinding assembly 10 to receive the ground coffee powder, and the lower outlet end leading the coffee powder into the brewing assembly 40.

[0041] The funnel assembly 50 is inserted into the brewing assembly 40. The brewing assembly 40 is equipped with a vertically movable tamping piston 410 that can compact coffee powder in the coffee bowl 501. The funnel assembly 50 is provided with an upward-opening receiving cavity. The coffee bowl 501 is axially engaged in the receiving cavity by a limiting structure. The coffee bowl 501 includes a coffee bowl gear 5022 and a coffee bowl body 5012. The coffee bowl gear 5022 is located on the top of the coffee bowl 501 and is used to connect to the gear assembly 20 to drive the coffee bowl 501 to rotate circumferentially.

[0042] Specifically, refer to Figure 10 The coffee grinding assembly 10 also includes a motor worm gear 102, a worm wheel 103, and a transmission shaft gear 106. The grinding motor 101 and the motor worm gear 102 are coaxially connected. The upper part of the motor worm gear 102 meshes with the upper part of the worm wheel 103, and the motor worm gear 102 drives the worm wheel 103 to rotate. The lower part of the worm wheel 103 meshes with the transmission shaft gear 106. The grinding cone 104 and the transmission shaft gear 106 both rotate coaxially with the cone shaving transmission shaft 105. The grinding cone 104 is located at the top of the cone shaving transmission shaft 105. The rotation of the grinding motor 101 drives the grinding cone 104 to rotate and grind the coffee beans, which can send the ground coffee powder into the coffee powder feeding channel assembly 30. When grinding coffee beans, the user puts the funnel assembly 50 into the funnel holder, the grinding motor 101 starts, and grinds the coffee beans into coffee powder; the ground coffee powder falls into the coffee bowl 501 through the coffee powder feeding channel assembly 30.

[0043] The gear assembly 20 includes a powder bowl drive gear 201, a powder bowl transmission gear A202, a powder bowl transmission gear B203, and a powder bowl transmission gear C204. The powder bowl drive gear 201 is connected to the bottom of the conical cutter drive shaft 105 and rotates coaxially with the conical cutter drive shaft 105. The powder bowl drive gear 201 meshes with the powder bowl transmission gear A202, and the powder bowl drive gear 201 drives the powder bowl transmission gear A202 to rotate. The powder bowl transmission gear A202 meshes with the powder bowl transmission gear B203, and the powder bowl transmission gear A202 drives the powder bowl transmission gear B203 to rotate. The powder bowl transmission gear B203 meshes with the powder bowl transmission gear C204, and the powder bowl transmission gear B203 drives the powder bowl transmission gear C204 to rotate. The powder bowl transmission gear C204 meshes with the powder bowl gear 5022, and the powder bowl transmission gear C204 drives the powder bowl gear 5022 to rotate.

[0044] Reference Figure 2 , Figure 3 , Figure 5 , Figure 7 , Figure 8 and Figure 9The powder dispensing channel assembly 30 includes a powder dispensing channel A301 and a powder dispensing channel B302. The powder dispensing channel A301 and the powder dispensing channel B302 are slidably connected by a first elastic limiting structure. The powder dispensing channel B302 is sleeved on the outer wall of the powder dispensing channel A301. Under the action of the first elastic limiting structure, the powder dispensing channel B302 can slide along the powder dispensing channel A301.

[0045] Reference Figure 4 and Figure 6 The brewing component 40 is equipped with a powder channel cover plate 411, a powder pressing motor 406, a lead screw 407, and a powder pressing piston 410. The bottom of the lead screw 407 is fixedly connected to the powder pressing piston 410. The powder pressing motor 406 drives the lead screw 407 to rotate up and down through gear engagement, which in turn drives the powder pressing piston 410 to move up and down. When the powder pressing piston 410 moves up or down to the trigger position, the powder pressing motor 406 stops working.

[0046] The powder channel cover plate 411 is rotatably connected to the housing of the brewing component 40; the powder channel cover plate 411 can rotate a certain angle inside the brewing component 40; when the powder pressing piston 410 moves upward to press the powder channel cover plate 411, the powder channel cover plate 411 opens the powder discharge channel B302; when the powder pressing piston 410 moves downward to press the powder channel cover plate 411, the powder channel cover plate 411 closes the powder discharge channel B302.

[0047] Preferred, refer to Figure 3The first elastic limiting structure includes a connecting block A, a connecting post A305, a connecting block B307, and a powder channel spring 303. The upper inlet end of the powder channel A301 is fixedly connected to the grinding assembly 10, and the lower outlet end of the powder channel B302 is fixedly connected to the brewing assembly 40. The powder channel A301 is positioned higher than the powder channel B302. Two connecting blocks A are provided on the side wall of the powder channel A301, and two connecting posts A305 are provided on each of the two connecting blocks A. The connecting posts A305 are parallel to the powder channel A301, and screw holes A306 are provided at the bottom of each connecting post A305. Connecting blocks B307 are respectively installed at the positions of connecting blocks A and corresponding to the powder feeding channels B302. Through holes B308 are provided on each connecting block B307 corresponding to the connecting posts A305. Two powder channel springs 303 are respectively arranged around the two connecting posts A305. After the connecting post A305 passes through the through hole B308, the outer wall of the connecting post A305 fits against the inner wall of the through hole B308. Screws A304 are fixedly connected to the bottom of the connecting post A305 with screw holes A306. The top cap of the screw A304 limits the movement of connecting blocks B307. Connecting blocks B307 drive the powder feeding channels B302 to slide up and down along the connecting posts A305. The powder feeding channel B302 is fitted onto the outer wall of the powder feeding channel A301. As the powder feeding channel B302 moves upward, the powder channel spring 303 is compressed. When the powder channel spring 303 is compressed to its maximum limit, the length of the powder feeding channel A301 entering the powder feeding channel B302 is greater than the length of the connecting column A305, ensuring the stability of the sliding connection between the powder feeding channels A301 and B302. The telescopic powder feeding channel design, under the elastic force of the powder channel spring 303, makes the powder channel cover plate 411 and the powder feeding channel B fit more tightly.

[0048] Preferred, refer to Figure 4 and Figure 6The brewing component 40 housing includes a gearbox upper cover 401, a gearbox lower cover 402, a piston right cover 408, and a piston left cover 409. The gearbox upper cover 401 and gearbox lower cover 402 are vertically arranged and fixedly connected by screws. The piston right cover 408 and piston left cover 409 are located below the gearbox lower cover 402 and are fixedly connected by screws before being fixedly connected to the gearbox lower cover 402. The motor gear 403, the lead screw drive gear 404, and the lead screw gear 405 are arranged at the junction of the gearbox upper cover 401 and the gearbox lower cover 402. In the subsequently formed cavity, the lower cover 402 of the gearbox is provided with a circular through hole. The drive shaft of the powder pressing motor 406 passes through the circular through hole, connects to the motor gear 403, and drives the motor gear 403 to rotate. The motor gear 403 meshes with the lead screw drive gear 404, which drives the lead screw drive gear 404 to rotate. The lead screw drive gear 404 meshes with the lead screw gear 405, which drives the lead screw gear 405 to rotate. The lead screw gear 405 is provided with a central hole, and the inner wall of the central hole is provided with an internal thread. The outer wall of the lead screw 407 is provided with an external thread that matches the internal thread. The bottom of the lead screw 407 extends into the powder pressing piston 410 and is fixedly connected to the powder pressing piston 410. The lead screw 407 can rotate up and down along the lead screw gear 405 through the threaded engagement. After the piston right cover 408 and piston left cover 409 are fixedly connected by screws, a guide groove 4021 is formed. The guide groove 4021 is respectively located on both sides inside the piston right cover 408 and piston left cover 409. The funnel assembly 50 is provided with a horizontal guide plate 5021. After the guide plate 5021 is inserted along the guide groove 4021, it is engaged with the funnel fixing ring 416 provided at the bottom of the piston left cover 409. The funnel assembly 50 and the brewing assembly 40 are fixedly connected.

[0049] The pressing piston 410 is designed as a "flat cylinder," and an induction magnet 413 is provided on the outer wall of the pressing piston 410. The inner wall of the brewing component 40 housing is provided with a piston lower dead center induction plate 414 and a piston upper dead center induction plate 415. The piston lower dead center induction plate 414 is located at the bottom of the brewing component 40 housing and contains a Hall element capable of sensing the magnet 413. The piston upper dead center induction plate 415 is located at the top of the brewing component 40 housing. This application uses the principle of Hall effect sensing to precisely control the working timing of the pressing motor 406 and the pressing piston 410. The pressing piston 410 and the powder channel cover plate 411 are structurally coordinated to control the opening and closing of the powder channel cover plate 411 on the powder feeding channel, monitor the powder feeding and brewing process status in real time, and independently drive the powder channel cover plate 411 to achieve precise opening and closing, eliminating the risk of leakage. (Refer to...) Figure 3The outer wall of the tamping piston 410 is also provided with an outwardly extending water inlet 4020. The piston right cover 408 and piston left cover 409 are joined together to form a sliding groove. The water inlet 4020 moves up and down in the sliding groove with the lead screw 407. The tamping piston 410 flattens the coffee powder in the coffee bowl 501. The hot water in the water tank is pressurized and flows into the coffee bowl 501 through the water inlet 4020 to brew and extract the coffee powder. The coffee liquid flows out from the second coffee outlet 5072 below the coffee bowl 501 to the receiving hopper and then flows out from the outlet pipe. It is collected by the coffee cup below the outlet pipe. This application can automatically place coffee powder in the coffee bowl 501 and automatically distribute, tamp, and extract the coffee powder inside.

[0050] Reference Figure 5 , Figure 7 , Figure 8 and Figure 9 The powder channel cover plate 411 includes an upper surface 4111 and a side arc surface 4112, which are fixedly connected. A cover plate shaft 412 passes vertically through the side wall of the powder channel cover plate 411, specifically through a mounting hole 5081 at the connection between the upper surface 4111 and the side arc surface 4112. The powder channel cover plate 411 can rotate along the cover plate shaft 412, and both ends of the cover plate shaft 412 are fixed to the mounting holes 5082 on both sides of the piston left cover 409. When the powder channel cover plate 411 closes the lower outlet end of the powder inlet channel B, the inner side wall of the side arc surface 4112 adheres to the outer side wall of the powder pressing piston 410. The powder outlet channel B302 is a square channel with its two vertical edges pointing downwards at the lower outlet end. When the powder channel cover plate 411 closes the lower powder outlet channel B, the two horizontal edges of the lower outlet end of the lower powder outlet channel B are in contact with the outer wall of the side arc surface 4112 of the cover plate. The two horizontal edges of the lower outlet end of the lower powder outlet channel B are set to be arc-shaped, and the curvature is the same as that of the side arc surface 4112 of the cover plate.

[0051] The powder pressing piston 410 is provided with an upper rounded corner surface 4101 and a side rounded corner surface 4102. The upper rounded corner surface 4101 is located at the top chamfer of the outer side wall of the powder pressing piston 410 facing the powder channel cover plate 411. The side rounded corner surface 4102 is a fan-shaped annular protrusion extending outward from the outer side wall of the powder pressing piston 410 facing the powder channel cover plate 411, which are respectively used to abut against the upper surface 4111 of the cover plate and the side arc surface 4112 of the cover plate.

[0052] When the powder pressing piston 410 rises, the rounded corner surface 4101 on the piston of the powder pressing piston 410 contacts the upper surface 4111 of the cover plate of the powder channel cover plate 411, causing the powder channel cover plate 411 to rotate, thus separating the powder channel B302 from the powder channel cover plate 411 and opening the lower outlet end of the powder channel B302. When the powder pressing piston 410 moves down, the rounded corner surface 4102 on the piston side of the powder pressing piston 410 contacts the arc surface 4112 on the cover plate side. The rounded corner surface 4102 on the piston side presses the arc surface 4112 on the cover plate side, causing the powder channel cover plate 411 to rotate until the powder channel cover plate 411 and the powder channel B302 are in contact, sealing the lower outlet end of the powder channel B302.

[0053] Reference Figure 2 The brewing component 40 housing is provided with a guide groove 4021, and the funnel component 50 is provided with a guide plate 5021 corresponding to the guide groove 4021. The guide plate 5021 of the funnel component 50 is inserted into the brewing component 40 along the guide groove 4021. The funnel component 50 opens upward, and the coffee bowl 501 is located inside the funnel component 50. The ground coffee powder falls into the coffee bowl 501 through the powder feeding channel. The tamping piston 410 extends into the coffee bowl 501, and the outer wall of the tamping piston 410 is in contact with the inner wall of the coffee bowl 501. The brewed coffee powder 60 is located inside the coffee bowl 501 and is compacted by the tamping piston 410.

[0054] Reference Figure 11 , Figure 12 and Figure 13 The funnel assembly 50 is provided with an upward-opening receiving cavity, and the coffee bowl 501 is axially engaged in the receiving cavity by a limiting structure. The coffee bowl 501 includes a coffee bowl gear 5022 and a coffee bowl body 5012. The coffee bowl gear 5022 is located on the top of the coffee bowl 501. Under the action of the coffee grinder motor 101, the coffee bowl gear 5022 can drive the coffee bowl 501 to rotate through gear engagement. When the coffee bowl body 5012 rotates relative to the funnel assembly 50, the coffee powder entering the coffee bowl body 5012 is automatically distributed. Reference Figure 14 and Figure 16 Preferably, the limiting structure includes an annular groove 5031 disposed on the outer wall of the powder bowl 5012 and a spring glass bead 5016 disposed on the inner wall of the funnel assembly 50. The annular groove 5031 corresponds to the position of the spring glass bead 5016. When the powder bowl 501 rotates, the spring glass bead 5016 remains within the annular groove 5031, and the annular groove 5031 of the powder bowl 501 rotates along the spring glass bead 5016. Through the limiting of the spring glass bead 5016, the vertical relative positions of the funnel assembly 50 and the powder bowl 5012 are fixed.

[0055] Specifically, the funnel assembly 50 is provided with a mounting portion 5018 for mounting the spring bead 5016 and the handle 5017. Preferably, the mounting portion 5018 is a cylindrical mounting portion 5018 extending outward from the side wall of the funnel assembly 50.

[0056] The cylindrical mounting part 5018 is provided with a through mounting hole 5019. In this embodiment, the end of the mounting hole 5019 near the powder bowl 501 is the front end of the mounting hole 5019, and the end of the mounting hole 5019 away from the powder bowl 501 is the rear end of the mounting hole 5019. The inner diameter of the front end of the mounting hole 5019 is smaller than the inner diameter of the rear end. The front end of the mounting hole 5019 is used to install a spring glass bead 5016. The spring glass bead 5016 includes a glass bead and an elastic column. The front end of the elastic column extends out of a frustum. The bottom surface of the frustum is connected to the elastic column. The size of the bottom surface of the frustum is the same as the cross-sectional size of the elastic column and is integrally formed. A central groove 5064 is provided at the top of the frustum. The glass bead extends out of the central groove 5064 of the frustum at the front end of the elastic column. The center of the glass bead is located inside the central groove 5064. The glass bead can rotate and will not slide out of the central groove 5064. The outer wall of the rear end of the spring glass bead 5016 fits tightly against the inner wall of the front end of the mounting hole 5019. The glass bead of the spring glass bead 5016 extends out of the mounting hole 5019 and enters the annular groove 5031 of the powder cup body 5012, allowing the glass bead of the spring glass bead 5016 to rotate. The rotation of the glass bead of the spring glass bead 5016 reduces the mechanical wear generated when the powder cup 501 rotates.

[0057] The rear end of mounting hole 5019 is used to insert mounting post 5020 of handle 5017. Mounting post 5020 limits spring ball 5016. When spring ball 5016 needs to be replaced, handle 5017 is removed and spring ball 5016 is replaced. The rear end of mounting hole 5019 and mounting post 5020 are threaded together.

[0058] Preferably, the limiting structure further includes a groove 5062 on the top of the powder bowl body 5012 and a limiting protrusion 5063 on the top of the funnel assembly 50. The funnel assembly 50 opens upwards, and the top folded edge of the powder bowl body 5012 has a downward-opening groove 5062, which engages with the limiting protrusion 5063 on the top of the funnel assembly 50. The gear of the powder bowl gear 5022 is located on the outer periphery of the top folded edge of the powder bowl body 5012. In the horizontal direction, the inner wall of the funnel assembly 50 limits the outer wall of the powder bowl body 5012, and the powder bowl body 5012 does not make any linear movement at any angle in the horizontal direction relative to the funnel assembly 50. The groove 5062 engages with the limiting protrusion 5063. The groove 5062 is a circular groove, and the limiting protrusion 5063 is a circular protrusion. The funnel assembly 50 and the powder bowl 501 are axially engaged by a limiting structure, which provides precise axial and radial positioning for the powder bowl body 5012, ensuring that the powder bowl 501 can be perfectly aligned with the funnel assembly 50 every time it rotates.

[0059] When assembling the portafilter 501 and funnel assembly 50, first place the portafilter 501 inside the funnel assembly 50, with the retaining groove 5062 engaging the limiting protrusion 5063. Next, install the spring bead 5016 into the mounting hole 5019. Finally, thread the handle 5017 into the mounting hole 5019, and the bead of the spring bead 5016 is pushed into the annular groove 5031 by the mounting post 5020 of the handle 5017. The excellent structural design of this application facilitates the replacement of the spring bead 5016. After removing the spring bead 5016, the portafilter 501 can be easily removed from the funnel assembly 50 (e.g., by quick lifting), allowing the user to thoroughly clean the portafilter 501 and funnel assembly 50, preventing the accumulation of coffee grounds and residue that could affect the flavor.

[0060] This application achieves automatic and uniform powder distribution through the rotation of the powder bowl 501. Furthermore, the funnel assembly 50 and the powder bowl 501 are axially engaged through a limiting structure to ensure that the powder bowl 501 rotates precisely within the funnel assembly 50, thereby ensuring that the powder bowl 501 rotates smoothly when pressed, avoiding jamming and uneven force, while also ensuring the sealing performance of the powder bowl assembly and the quality of powder pressing.

[0061] Reference Figure 15 and Figure 17 The coffee bowl 501 also includes a puff pastry plate 5011. The coffee bowl body 5012 is disposed inside the funnel assembly 50. The bottom of the coffee bowl body 5012 extends in an open shape from bottom to top. The puff pastry plate 5011 is disposed at the bottom of the open-shaped extension structure. The puff pastry plate 5011 is provided with a second elastic limiting structure, which allows the puff pastry plate 5011 to move vertically along the coffee bowl body 5012. The funnel assembly 50 is provided with a pusher button 5015. The pusher button 5015 pushes the puff pastry plate 5011 upward, so that the coffee powder puff residue stuck to the inner wall of the coffee bowl body 5012 is separated from the inner wall of the coffee bowl body 5012.

[0062] The coffee puck pusher plate 5011 includes a top plate, connecting posts C5032, and a protrusion 5034. The coffee puck entering the coffee bowl 501 is placed on the top plate. The two connecting posts C5032 and the protrusion 5034 extend downward from the top plate. The protrusion 5034 is located at the center of the top plate. The two connecting posts C5032 are symmetrically arranged about the protrusion 5034. The top plate, connecting posts C5032, and protrusion 5034 are integrally formed. When the coffee puck pusher plate 5011 is at the lowest position inside the coffee bowl 5012, the outer wall of the top plate and the inner wall of the coffee bowl 5012 fit tightly together. The outer wall of the top plate may also be provided with a circumferential groove for setting a sealing ring.

[0063] The second elastic limiting structure includes a push plate spring 5013. The bottom of the powder bowl 5012 has a large central hole and two small holes. The large central hole corresponds to the protrusion 5034, and the two small holes correspond to the two connecting posts C5032. The connecting posts C5032 pass through the small holes in the bottom wall of the powder bowl 5012 and are fixed with connecting screws C5014. The bottom of the connecting post C5032 has a screw hole C5033, into which the screw C5014 is inserted for threaded connection. The push plate spring 5013 is located on the outer wall of the connecting post C5032, and is positioned between the bottom wall of the powder bowl 5012 and the screw C5014. When the powder push plate 5011 is at its lowest position inside the powder bowl 5012, the push plate spring 5013 is in its natural state; when the protrusion 5034 is pushed upwards, the powder push plate 5011 moves upwards, and the push plate spring 5013 is compressed. This application avoids the method used in related technologies where impact causes coffee grounds to separate from the coffee tray, thus preventing deformation, wear, or damage to the tray due to long-term impact, reducing replacement costs; it also reduces noise caused by coffee grounds falling off due to impact; and it reduces mechanical stress caused by impact, lowering the risk of loosening or malfunctioning internal parts of the coffee machine, improving the overall reliability of the coffee machine, and extending the lifespan of the coffee tray and the coffee machine. Ultimately, it enhances the durability, quietness, safety, and ease of use of the coffee machine.

[0064] The push-plate button 5015 includes an integrally formed rotating part 5051, a push-plate part 5052, a button part 5053, and a baffle 5054. The push-plate part 5052 can push the protrusion 5034 upward, driving the powder compact push plate 5011 upward. The rotating part 5051 and the funnel assembly 50 are fixedly connected by a rotating shaft 5050, which is perpendicular to the side of the rotating part 5051; the rotating part 5051 is inside the funnel assembly 50 and can rotate along the rotating shaft 5050. The left end of the push-plate part 5052 is connected to the rotating part 5051, and the right end is connected to the button part 5053. The baffle 5054 is vertically upward on the button part 5053, and the baffle 5054 is an arc surface. In addition to limiting the movement, the baffle 5054 also serves to seal and prevent dust.

[0065] The protrusion 5034 is a hollow circular groove with the opening of the circular groove facing downwards, and the push plate 5052 is a hollow cylinder; when the powder push plate 5011 is at the lowest position inside the powder bowl 5012, the bottom wall of the circular groove of the protrusion 5034 abuts against the top wall of the hollow cylinder of the push plate 5052.

[0066] The funnel assembly 50 has a rotating groove 5041 at its bottom that engages with the rotating part 5051. The rotating part 5051 and the rotating groove 5041 are interlocked. The rotating groove 5041 is a groove-shaped structure made of elastic material. The bottom of the funnel assembly 50 also has an upward-facing column 5042, which corresponds to the push plate part 5052. (Refer to...) Figure 14 andFigure 16 The outer diameter of the column 5042 is smaller than the inner diameter of the push plate 5052. When the powder push plate 5011 is at its lowest position within the powder bowl 5012, i.e., when the bottom wall of the circular groove of the protrusion 5034 abuts against the hollow cylindrical top wall of the push plate 5052, both the column 5042 and the push plate 5052 are vertically upwards. A certain distance is maintained between the outer wall of the column 5042 and the inner wall of the push plate 5052. (Refer to...) Figure 15 and Figure 17 When the button 5053 is pressed upwards, the push plate button 5015 rotates along the rotating shaft 5050, and the push plate part 5052 can rotate a certain angle outside the column 5042. The top wall of the hollow cylinder of the push plate part 5052 away from the rotating shaft 5050 pushes up the bottom wall of the circular groove of the protrusion 5034, and the powder compact push plate 5011 moves upwards, compressing the push plate spring 5013. When the maximum angle is reached, the column 5042 limits the push plate part 5052 to no longer move upwards.

[0067] The pusher button 5015, in conjunction with the pusher plate 5011, pushes the puck pusher plate 5011 upwards, facilitating the removal of coffee powder residue stuck to the bottom of the portafilter bowl 5012. After cleaning the coffee powder from the portafilter bowl, pressing the puck pusher plate 5011 downwards causes the pusher spring 5013 to return to its original position, and the puck pusher plate 5011 returns to its lowest position within the portafilter bowl 5012. The initial and raised positions of the puck pusher plate 5011 in this application do not affect the seal of the portafilter bowl 501 and prevent unintentional changes to its position, thus maintaining the stability and consistency of coffee brewing and ensuring stable coffee quality.

[0068] A first coffee outlet 5071 extends downward from the center of the coffee tray 5011. A second coffee outlet 5072, communicating with the first coffee outlet 5071, is located at the bottom of the funnel assembly 50. The first coffee outlet 5071 rotates circumferentially relative to the second coffee outlet 5072. The coffee extracted in the coffee tray 501 is discharged from the second coffee outlet 5072.

[0069] This application utilizes the structural cooperation of a puck pusher plate 5011, a pusher spring 5013, a pusher button 5015, and a coffee tray body 5012. The pusher button 5015 pushes the puck pusher plate 5011 upwards, easily pushing out coffee puck residue from the bottom of the coffee tray body 5012 and cleaning the residue from the inner wall of the coffee tray body 5012. This application allows puck residue to be more easily removed from the coffee tray, facilitating cleaning and reducing residue splattering. It is beneficial for cleaning the coffee tray and coffee machine, improving cleaning convenience, speed, and efficiency.

[0070] The working principle of this application embodiment: 1. When grinding coffee beans, the user inserts the coffee funnel assembly 50 straight into the brewing assembly 40 along the guide groove 4021. The tamping motor 406 operates clockwise, the motor gear 403 drives the lead screw transmission gear 404, the lead screw gear 405 rotates clockwise, the lead screw gear 405 drives the lead screw 407, and the tamping piston 410 moves upward. A magnet 413 is installed in the tamping piston 410. When the tamping piston 410 moves upward to the position of the piston top dead center sensing plate 415, the Hall element on the piston top dead center sensing plate 415 senses the magnet 413, and the tamping motor 406 stops.

[0071] 2. When the pressing piston 410 rises, the rounded corner surface 4101 on the piston of the pressing piston 410 contacts the upper surface 4111 of the cover plate of the powder channel cover plate 411, which drives the powder channel cover plate 411 to rotate, causing the powder discharge channel B302 to separate from the powder channel cover plate 411, thereby opening the powder discharge channel and allowing the ground powder to fall into the powder bowl 501.

[0072] 3. The grinder motor 101 starts, transmitting power to the conical cutter drive shaft 105 via gears, driving the grinding conical cutter 104 to grind coffee beans into coffee powder. The ground coffee powder passes through the powder feeding channels A301 and B302, falling into the coffee bowl 501. The powder feeding channel A301 is fixed to the grinder assembly 10, and the powder feeding channel B302 is movably connected to the powder feeding channel A301 via the powder channel spring 303. The powder feeding channel B302 can extend and retract relative to the powder feeding channel A301, allowing the powder channel cover plate 411 and the powder feeding channel B302 to fit more tightly.

[0073] 4. After grinding is completed, the pressing motor 406 operates counterclockwise, the motor gear 403 drives the lead screw transmission gear 404, the lead screw gear 405 rotates counterclockwise, the lead screw gear 405 drives the lead screw 407, and the pressing piston 410 moves downward. A magnet 413 is installed in the pressing piston 410. When the pressing piston 410 moves down to the position of the piston lower stop sensing plate 414, the Hall element on 414 senses the magnet 413, and the pressing motor 406 stops.

[0074] 5. During the downward movement of the powder pressing piston 410, the piston side rounded corner surface 4102 and the cover plate side arc surface 4112 come into contact. When the powder pressing piston 410 moves to the position of the piston bottom stop sensing plate 414, the piston side rounded corner surface 4102 on the powder channel cover plate 411 presses against the cover plate side arc surface 4112, so that the powder channel cover plate 411 and the powder discharge channel B302 fit together, sealing the outlet of the powder discharge channel B302.

[0075] 6. When the tamping piston 410 moves to the position of the piston bottom dead center sensing plate 414, the tamping piston 410 tamps the brewed coffee powder 60 into a cake shape.

[0076] Secondly, this application provides a coffee machine that includes the aforementioned powder dispensing mechanism.

[0077] In summary, this application provides a coffee maker with a relatively simplified mechanical structure, precise control, and reliable sealing for dispensing and spreading coffee powder. In this application, the grinder motor 101 synchronously drives the grinder cone 104 and the coffee bowl 501 to rotate, achieving synchronous dispensing and spreading of coffee powder, eliminating the need for a separate rotary motor. The ground coffee powder falls into the coffee bowl 501 through the dispensing channel. During the operation of the grinder motor 101, the coffee bowl 501 rotates continuously, ensuring the coffee powder is evenly distributed within it. This simplified structure saves costs. The tamping motor 406 drives the tamping piston 410, which, in conjunction with the powder channel cover 411 and the telescopic dispensing channel, opens and closes the powder channel. Furthermore, the engagement of the spring bead 5016 with the annular groove 5031 on the periphery of the coffee bowl body 5012 enables relative rotational connection between the coffee bowl 501 and the funnel assembly 50, facilitating automatic powder dispensing. In addition, the pusher button 5015 at the bottom of the funnel assembly 50 of this application, together with the powder puck pusher 5011, facilitates the removal of coffee powder residue stuck to the bottom of the powder holder 501, making it easier to clean the powder puck inside the powder holder.

[0078] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A powder dispensing and powder application mechanism, characterized in that, It includes a grinding assembly (10), a gear assembly (20), a powder delivery channel assembly (30), a funnel assembly (50), and a powder bowl (501); The bean grinding assembly (10) is equipped with a bean grinding motor (101), a bean grinding cone (104), and a cone drive shaft (105); the bean grinding motor (101) drives the cone drive shaft (105) to rotate, and the cone drive shaft (105) and the bean grinding cone (104) are coaxially connected; the cone drive shaft (105) is connected to the gear assembly (20), and the gear assembly (20) is connected to the powder bowl (501), so that the powder bowl (501) rotates inside the funnel assembly (50); The powder outlet of the powder dispensing channel assembly (30) faces the powder bowl (501); The funnel assembly (50) is provided with an upward-opening receiving cavity. The powder bowl (501) is circumferentially rotatably connected to the funnel assembly (50) through a limiting structure. The powder bowl (501) includes a powder bowl gear (5022) and a powder bowl body (5012). The powder bowl gear (5022) is located on the top of the powder bowl (501) and is used to drive the gear assembly (20) to drive the powder bowl (501) to rotate circumferentially.

2. The powder dispensing and powder distribution mechanism according to claim 1, characterized in that, The grinding assembly (10) also includes a motor worm gear (102), a worm wheel (103), and a transmission shaft gear (106). The grinding motor (101) and the motor worm gear (102) are coaxially connected. The upper part of the motor worm gear (102) meshes with the upper part of the worm wheel (103), and the motor worm gear (102) drives the worm wheel (103) to rotate. The lower part of the worm wheel (103) meshes with the transmission shaft gear (106). The grinding cone blade (104) and the transmission shaft gear (106) rotate coaxially with the cone blade transmission shaft (105). The grinding cone blade (104) is located at the top of the cone blade transmission shaft (105).

3. The powder dispensing and spreading mechanism according to claim 2, characterized in that, The gear assembly (20) includes a powder bowl drive gear (201), a powder bowl drive gear A (202), a powder bowl drive gear B (203), and a powder bowl drive gear C (204). The powder bowl drive gear (201) is connected to the bottom of the conical cutter drive shaft (105) and rotates coaxially with the conical cutter drive shaft (105). The powder bowl drive gear (201) and the powder bowl drive gear A (202) mesh, and the powder bowl drive gear (201) drives the powder bowl drive gear A (202) to rotate. Gear A (202) meshes with powder bowl drive gear B (203), and powder bowl drive gear A (202) drives powder bowl drive gear B (203) to rotate; powder bowl drive gear B (203) meshes with powder bowl drive gear C (204), and powder bowl drive gear B (203) drives powder bowl drive gear C (204) to rotate; powder bowl drive gear C (204) meshes with powder bowl gear (5022), and powder bowl drive gear C (204) drives powder bowl gear (5022) to rotate.

4. The powder dispensing and powder distribution mechanism according to claim 1, characterized in that, The limiting structure includes an annular groove (5031) on the outer wall of the powder bowl (5012) and a spring glass bead (5016) on the inner wall of the funnel assembly (50). The position of the annular groove (5031) corresponds to the position of the spring glass bead (5016). When the powder bowl (501) rotates, the annular groove (5031) of the powder bowl (5012) rotates along the spring glass bead (5016).

5. The powder dispensing and powder distribution mechanism according to claim 1, characterized in that, The limiting structure also includes a slot (5062) on the top of the powder bowl body (5012) and a limiting protrusion (5063) on the top of the funnel assembly (50), wherein the slot (5062) engages with the limiting protrusion (5063).

6. The powder dispensing and spreading mechanism according to claim 1, characterized in that, The powder dispensing channel assembly (30) includes a powder dispensing channel A (301) and a powder dispensing channel B (302). The powder dispensing channel A (301) and the powder dispensing channel B (302) are slidably connected by a first elastic limiting structure. The powder dispensing channel B (302) is sleeved on the outer wall of the powder dispensing channel A (301). Under the action of the first elastic limiting structure, the powder dispensing channel B (302) can slide along the powder dispensing channel A (301).

7. The powder dispensing and spreading mechanism according to claim 6, characterized in that, The powder feeding and distributing mechanism also includes a brewing component (40). The brewing component (40) is equipped with a powder channel cover plate (411), a powder pressing motor (406), a lead screw (407), and a powder pressing piston (410). The bottom of the lead screw (407) is fixedly connected to the powder pressing piston (410). The powder pressing motor (406) drives the lead screw (407) to rotate up and down through gear engagement, thereby driving the powder pressing piston (410) to move up and down. When the powder pressing piston (410) moves up or down to the trigger position, the powder pressing motor (406) stops working. The powder channel cover (411) is rotatably connected to the housing of the brewing component (40); the powder channel cover (411) can rotate a certain angle inside the brewing component (40); when the powder pressing piston (410) moves upward, the powder channel B (302) is pushed open by the powder channel cover (411) under the action of the first elastic limiting structure to open the powder channel B (302); when the powder pressing piston (410) moves downward to the trigger position, the powder pressing piston (410) drives the powder channel cover (411) to rotate to close the powder channel B (302).

8. The powder dispensing and powder distribution mechanism according to claim 1, characterized in that, The bottom of the coffee bowl (5012) extends in an open shape from bottom to top. The coffee maker pusher (5011) is located at the bottom of the open extended structure. The coffee maker pusher (5011) is provided with a second elastic limiting structure, which allows the coffee maker pusher (5011) to move vertically along the coffee bowl (5012). The funnel assembly (50) is provided with a pusher button (5015). The pusher button (5015) pushes the coffee maker pusher (5011) upward, so that the coffee powder residue stuck to the inner wall of the coffee bowl (5012) is separated from the inner wall of the coffee bowl (5012).

9. The powder dispensing and powder distribution mechanism according to claim 8, characterized in that, The powder dispenser plate (5011) extends downward to have a first coffee outlet (5071), and the bottom of the funnel assembly (50) is provided with a second coffee outlet (5072) that communicates with the first coffee outlet (5071). The first coffee outlet (5071) rotates circumferentially relative to the second coffee outlet (5072).

10. A coffee machine, characterized in that, The coffee machine includes the powder dispensing and distribution mechanism as described in claims 1-9.

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