A powder distribution mechanism and coffee machine

Abstract

The application relates to the technical field of coffee machines, in particular to a lower powder distribution mechanism and a coffee machine. The application provides a lower powder distribution mechanism which comprises a bean grinding assembly, a gear assembly, a lower powder channel assembly, a brewing assembly and a hopper assembly; a bean grinding motor drives a conical knife transmission shaft to rotate, drives a bean grinding conical knife coaxially connected with the conical knife transmission shaft to rotate, and grinds coffee beans into coffee powder; the conical knife transmission shaft is matched with a gear of the gear assembly, and the gear assembly drives a powder bowl to rotate in the hopper assembly. A powder pressing piston which moves up and down is arranged in the brewing assembly and can compact coffee powder in the powder bowl; the powder bowl is axially clamped in an accommodating cavity of an upward opening of the hopper assembly through a limiting structure; and a powder bowl gear is used for connecting the gear assembly to drive the powder bowl to rotate circumferentially. In the application, the bean grinding motor synchronously drives the bean grinding conical knife and the powder bowl to rotate, realizes synchronous lower powder distribution, does not need another rotating motor 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 bean grinder, and collect the coffee powder in a coffee funnel while the bean 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). To realize the powder spreading and pressing technical solution of this patent, in addition to the need for a bean grinder motor to drive the rotation of the bean grinder, a rotary motor is also needed to drive the rotation of the powder spreading hammer, and the powder bowl containing the coffee powder is fixed. This is also the automatic powder spreading technical solution adopted by most coffee machines on the market. The related technical solutions all need at least two special motors to complete the actions of grinding and spreading powder, which is too high in cost and leads to 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 bean grinding assembly, a gear assembly, a powder falling channel assembly, a funnel assembly and a powder bowl.

[0005] The bean grinding assembly is provided with a bean grinding motor, a bean grinding cone knife and a cone knife transmission shaft. The bean grinding motor drives the rotation of the cone knife transmission shaft, and the cone knife transmission shaft and the bean grinding 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.

[0006] The powder outlet of the powder falling channel assembly faces the powder bowl.

[0007] The funnel assembly is provided with an upwardly open accommodating cavity, and the powder bowl is circumferentially rotatably connected with the funnel assembly through a limiting structure. The powder bowl comprises a powder bowl gear and a powder bowl body, and the powder bowl gear is arranged at the top of the powder bowl. The powder bowl gear is used to drive the circumferential rotation of the powder bowl by being in transmission connection with the gear assembly.

[0008] Further, the bean grinding assembly further comprises a motor worm, a worm gear, a transmission shaft gear, the motor worm is coaxially connected with the bean grinding motor, the motor worm and the worm gear are engaged at the upper part, the motor worm drives the worm gear to rotate, the worm gear is engaged with the transmission shaft gear at the lower part, the bean grinding cone cutter and the transmission shaft gear rotate coaxially with the cone cutter transmission shaft, and the bean grinding cone cutter is arranged at the top of the cone cutter transmission shaft.

[0009] Further, the gear assembly comprises a powder bowl driving gear, a powder bowl transmission gear A, a powder bowl transmission gear B, and a powder bowl transmission gear C, the powder bowl driving gear is connected to the bottom of the cone cutter transmission shaft and rotates coaxially with the cone cutter transmission shaft, the powder bowl driving gear and the powder bowl transmission gear A are engaged, the powder bowl driving gear drives the powder bowl transmission gear A to rotate, the powder bowl transmission gear A and the powder bowl transmission gear B are engaged, the powder bowl transmission gear A drives the powder bowl transmission gear B to rotate, the powder bowl transmission gear B and the powder bowl transmission gear C are engaged, the powder bowl transmission gear B drives the powder bowl transmission gear C to rotate, and the powder bowl transmission gear C and the powder bowl gear are engaged, the powder bowl transmission gear C drives the powder bowl gear to rotate.

[0010] Further, the limiting structure comprises an annular groove arranged on the outer wall of the powder bowl body and a spring glass bead arranged on the inner wall of the funnel assembly, the annular groove is positioned corresponding to the spring glass bead, and when the powder bowl rotates, the annular groove of the powder bowl body rotates along the spring glass bead.

[0011] Further, the limiting structure further comprises a clamping groove arranged on the top of the powder bowl body and a limiting protruding ring arranged on the top of the funnel assembly, and the clamping groove is clamped with the limiting protruding ring.

[0012] 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 slidably connected through a 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 and stretch along the lower powder channel A.

[0013] 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.

[0014] The powder channel cover plate is rotationally connected with the brewing assembly shell, the powder channel cover plate can rotate by a certain angle in the brewing assembly, the lower powder channel B pushes open the powder channel cover plate to open the lower powder channel B under the action of the first elastic limiting structure during the upward movement of the powder pressing piston, and the powder pressing piston drives the powder channel cover plate to rotate to close the lower powder channel B when the powder pressing piston moves down to the trigger position.

[0015] 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, and 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.

[0016] Further, the powder cake push plate extends downward to have a first coffee outlet, the bottom of the funnel assembly is provided with a second coffee outlet in communication with the first coffee outlet, and the first coffee outlet rotates circumferentially relative to the second coffee outlet.

[0017] In a second aspect, the application provides a coffee machine, which comprises the powder distribution and powdering mechanism.

[0018] The application has at least one of the following beneficial effects:

[0019] 1. In the application, the bean grinding motor synchronously drives the bean grinding cone knife and the powder bowl to rotate, realizes synchronous powder distribution and powdering, and does not need another rotating motor to drive the powder pressing piston to rotate and distribute and powder. The structure is simplified, and the cost is saved. The powder pressing piston presses the coffee powder in the powder bowl flat, the hot water in the water tank is pressurized and then flows into the powder bowl through the water inlet to brew and extract the coffee powder, the coffee liquid flows out of the second coffee outlet below the powder bowl to the liquid receiving hopper, and then flows out of the liquid outlet pipe, and is received by the coffee cup below the liquid outlet pipe. The application can automatically place the coffee powder in the powder bowl, and automatically distribute and powder and extract the coffee powder inside.

[0020] 2. In the application, the powder pressing motor drives the powder pressing piston to move, cooperates with the powder channel cover plate and the telescopic powder distribution channel to realize the opening and closing of the powder channel, cooperates the spring glass bead with the circumferential limiting groove of the powder bowl body to realize the relative rotation connection and automatic powder distribution of the powder bowl and the funnel assembly, and cooperates the push plate button at the bottom of the funnel assembly with the powder cake push plate to facilitate pushing out the powder cake adhered to the bottom of the powder bowl and cleaning the powder cake in the powder bowl. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a whole structure schematic diagram of the embodiment of the application.

[0022] Figure 2 It is a whole structure split schematic diagram of the embodiment of the application.

[0023] Figure 3 It is an explosion structure schematic diagram of the powder distribution channel assembly of the embodiment of the application.

[0024] Figure 4 It is an explosion structure schematic diagram of the brewing assembly of the embodiment of the application.

[0025] Figure 5Figure 1 is a schematic diagram of the powder channel cover plate open structure of an embodiment of the present application.

[0026] Figure 6 Figure 2 is a schematic diagram of the brewing assembly cross-sectional structure of an embodiment of the present application.

[0027] Figure 7 Figure 3 is a schematic diagram of the powder channel cover plate closed structure of an embodiment of the present application.

[0028] Figure 8 Figure 4 is a schematic diagram of the powder channel cover plate open cross-sectional structure of an embodiment of the present application.

[0029] Figure 9 Figure 5 is a schematic diagram of the powder channel cover plate closed cross-sectional structure of an embodiment of the present application.

[0030] Figure 10 Figure 6 is a schematic diagram of the gear assembly structure of an embodiment of the present application.

[0031] Figure 11 Figure 7 is a schematic diagram of the powder bowl and funnel assembly structure of an embodiment of the present application.

[0032] Figure 12 Figure 8 is a schematic diagram of the powder bowl and funnel assembly split structure of an embodiment of the present application.

[0033] Figure 13 Figure 9 is a schematic diagram of the powder bowl and funnel assembly exploded structure of an embodiment of the present application.

[0034] Figure 14 Figure 10 is a schematic diagram of the funnel assembly and powder bowl cross-sectional structure when the powder cake push plate is not pushed of an embodiment of the present application.

[0035] Figure 15 Figure 11 is a schematic diagram of the funnel assembly and powder bowl cross-sectional structure when the powder cake push plate is pushed of an embodiment of the present application.

[0036] Figure 16 Figure 12 is a schematic diagram of the powder bowl cross-sectional structure when the powder cake push plate is not pushed of an embodiment of the present application.

[0037] Figure 17 Figure 13 is a schematic diagram of the powder bowl structure when the powder cake push plate is pushed of an embodiment of the present application.

[0038] 10, grinding assembly; 20, gear assembly; 30, lower powder channel assembly; 40, brewing assembly; 50, hopper assembly; 60, brewed coffee powder; 101, grinding motor; 102, motor worm; 103, worm gear; 104, grinding cone knife; 105, cone knife transmission shaft; 106, transmission shaft gear; 201, powder bowl driving gear; 202, powder bowl transmission gear A; 203, powder bowl transmission gear B; 204, powder bowl transmission gear C; 301, lower powder channel A; 302, lower powder channel B; 303, powder channel spring; 304, screw A; 305, connecting column A; 306, screw hole A; 307, connecting block B; 308, through hole B; 401, gear box upper cover; 402, gear box lower cover; 403, motor gear; 404, screw rod transmission gear; 405, screw rod gear; 406, powder pressing motor; 407, screw rod; 408, right cover of piston; 409, left cover of piston; 410, powder pressing piston; 411, cover plate of powder channel; 412, cover plate shaft; 413, magnet; 414, lower dead point sensing plate of piston; 415, upper dead point sensing plate of piston; 416, fixed ring of hopper; 4020, water inlet; 4021, guide groove; 501, powder bowl; 4101, upper rounded surface of piston; 4102, side rounded surface of piston; 4111, upper flat surface of cover plate; 4112, side arc surface of cover plate; 5011, powder cake pushing plate; 5012, bowl body of powder bowl; 5013, spring of pushing plate; 5014, screw C; 5015, button of pushing plate; 5016, spring ball; 5017, handle; 5018, mounting part; 5019, mounting hole; 5020, mounting column; 5021, guide plate; 5022, gear of powder bowl; 5031, annular groove; 5032, connecting column C; 5033, screw hole C; 5034, protruding part; 5041, rotating groove; 5042, stand column; 5050, rotating shaft; 5051, rotating part; 5052, pushing plate part; 5053, button part; 5054, baffle; 5062, clamping groove; 5063, limiting protruding ring; 5064, central groove; 5071, first coffee outlet; 5072, second coffee outlet; 5081, mounting hole at connecting part; 5082, mounting hole of cover plate. DETAILED DESCRIPTION

[0039] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0040] 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.

[0041] 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.

[0042] The following is in conjunction with the appendix Figures 1-17 This application will be described in further detail.

[0043] 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.

[0044] 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.

[0045] 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.

[0046] The funnel assembly 50 is inserted into the brewing assembly 40, and the brewing assembly 40 is internally provided with a powder pressing piston 410 moving up and down to compact coffee powder in a powder bowl 501; the funnel assembly 50 is provided with an accommodating cavity opening upward, and the powder bowl 501 is axially clamped in the accommodating cavity through a limiting structure; the powder bowl 501 comprises a powder bowl gear 5022 and a powder bowl body 5012, and the powder bowl gear 5022 is arranged at the top of the powder bowl 501 and is used to connect the gear assembly 20 to drive the powder bowl 501 to rotate circumferentially.

[0047] Specifically, referring to Figure 10 , the bean grinding assembly 10 further comprises a motor worm 102, a worm gear 103, a transmission shaft gear 106, and a bean grinding motor 101 coaxially connected with the motor worm 102, the motor worm 102 and the upper part of the worm gear 103 are engaged, and the motor worm 102 drives the worm gear 103 to rotate; the lower part of the worm gear 103 is engaged with the transmission shaft gear 106, and the bean grinding cone knife 104 and the transmission shaft gear 106 rotate coaxially with the cone knife transmission shaft 105; the bean grinding cone knife 104 is arranged at the top of the cone knife transmission shaft 105. The bean grinding motor 101 drives the bean grinding cone knife 104 to rotate for grinding coffee beans, and the ground coffee powder can be fed into the lower powder channel assembly 30. When grinding coffee beans, the user installs the funnel assembly 50 into the funnel support, starts the bean grinding motor 101, and grinds the coffee beans into coffee powder; the ground coffee powder falls into the powder bowl 501 through the lower powder channel assembly 30.

[0048] The gear assembly 20 comprises a powder bowl driving gear 201, a powder bowl transmission gear A 202, a powder bowl transmission gear B 203, and a powder bowl transmission gear C 204, the powder bowl driving gear 201 is connected to the bottom of the cone knife transmission shaft 105 and rotates coaxially with the cone knife transmission shaft 105, the powder bowl driving gear 201 and the powder bowl transmission gear A 202 are engaged, and the powder bowl driving gear 201 drives the powder bowl transmission gear A 202 to rotate; the powder bowl transmission gear A 202 and the powder bowl transmission gear B 203 are engaged, and the powder bowl transmission gear A 202 drives the powder bowl transmission gear B 203 to rotate; the powder bowl transmission gear B 203 and the powder bowl transmission gear C 204 are engaged, and the powder bowl transmission gear B 203 drives the powder bowl transmission gear C 204 to rotate; the powder bowl transmission gear C 204 and the powder bowl gear 5022 are engaged, and the powder bowl transmission gear C 204 drives the powder bowl gear 5022 to rotate.

[0049] Referring to Figure 2 , Figure 3 , Figure 5 , Figure 7 , Figure 8 and Figure 9The lower powder channel assembly 30 comprises a lower powder channel A 301 and a lower powder channel B 302, the lower powder channel A 301 and the lower powder channel B 302 are connected through the first elastic limiting structure, the lower powder channel B 302 is sleeved on the outer wall of the lower powder channel A 301, and the lower powder channel B 302 can slide along the lower powder channel A 301 under the action of the first elastic limiting structure.

[0050] With reference to Figure 4 And Figure 6 The brewing assembly 40 is internally provided 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 with the powder pressing piston 410, the powder pressing motor 406 drives the lead screw 407 to rotate up and down through gear cooperation, and drives the powder pressing piston 410 to move up and down; when the powder pressing piston 410 moves up or down to a trigger position, the powder pressing motor 406 stops working.

[0051] The powder channel cover plate 411 is rotationally connected with the shell of the brewing assembly 40; the powder channel cover plate 411 can rotate by a certain angle inside the brewing assembly 40; when the powder pressing piston 410 moves up to extrude the powder channel cover plate 411, the powder channel cover plate 411 opens the lower powder channel B 302; when the powder pressing piston 410 moves down to extrude the powder channel cover plate 411, the powder channel cover plate 411 closes the lower powder channel B 302.

[0052] Preferably, with reference to Figure 3The first elastic limiting structure comprises a connecting block A, a connecting column A305, a connecting block B307, and a powder channel spring 303. The upper inlet end of the lower powder channel A301 is fixedly connected with the bean grinding assembly 10. The lower outlet end of the lower powder channel B302 is fixedly connected with the brewing assembly 40. The lower powder channel A301 is higher than the lower powder channel B302. Two connecting blocks A are arranged on the side wall of the lower powder channel A301. The two connecting blocks A are respectively provided with two connecting columns A305. The connecting column A305 is parallel to the lower powder channel A301. The bottom of the connecting column A305 is respectively provided with a screw hole A306. The positions corresponding to the connecting block A of the lower powder channel B302 are respectively provided with a connecting block B307. The connecting block B307 is respectively provided with a through hole B308 corresponding to the connecting column A305. Two powder channel springs 303 are respectively arranged around the two connecting columns A305. After the connecting column A305 passes through the through hole B308, the outer wall of the connecting column A305 is attached to the inner wall of the through hole B308. The screw A304 is fixedly connected with the screw hole A306 at the bottom of the connecting column A305. The top cap of the screw A304 limits the connecting block B307. The connecting block B307 drives the lower powder channel B302 to slide up and down along the connecting column A305. The lower powder channel B302 is sleeved on the outer wall of the lower powder channel A301. The lower powder channel B302 moves upward. The powder channel spring 303 is compressed. When the powder channel spring 303 is compressed to the maximum limit, the length of the lower powder channel A301 entering the lower powder channel B302 is greater than the length of the connecting column A305, thereby ensuring the stable sliding connection of the lower powder channel A301 and the lower powder channel B302. The setting of the telescopic lower powder channel makes the powder channel cover plate 411 and the lower powder channel B more closely attached under the elastic force of the powder channel spring 303.

[0053] Preferably, referring to Figure 4 and Figure 6The brewing assembly 40 shell includes a gear box upper cover 401, a gear box lower cover 402, a piston right cover 408, and a piston left cover 409. The gear box upper cover 401 and the gear box lower cover 402 are fixedly connected by screws arranged above and below. The piston right cover 408 and the piston left cover 409 are arranged below the gear box lower cover 402. The piston right cover 408 and the piston left cover 409 are fixedly connected by screws and then fixedly connected with the gear box lower cover 402. A motor gear 403, a lead screw transmission gear 404, and a lead screw gear 405 are arranged in a cavity formed after the gear box upper cover 401 and the gear box lower cover 402 are spliced. The gear box lower cover 402 is provided with a circular through hole. A transmission shaft of a powder pressing motor 406 passes through the circular through hole to connect the motor gear 403 and drive the motor gear 403 to rotate. The motor gear 403 is engaged with the lead screw transmission gear 404. The motor gear 403 drives the lead screw transmission gear 404 to rotate. The lead screw transmission gear 404 is engaged with the lead screw gear 405. The lead screw transmission gear 404 drives the lead screw gear 405 to rotate. The lead screw gear 405 is provided with a central hole. An inner wall of the central hole is provided with an internal thread. An outer wall of the lead screw 407 is provided with an external thread matched with the internal thread. The bottom of the lead screw 407 extends into the powder pressing piston 410 to be fixedly connected with the powder pressing piston 410. The lead screw 407 can be rotated up and down along the lead screw gear 405 through thread cooperation. The piston right cover 408 and the piston left cover 409 are fixedly connected by screws to form a guide groove 4021. The guide groove 4021 is arranged on both sides of the inside of the piston right cover 408 and the piston left cover 409. The hopper assembly 50 is provided with a horizontal guide plate 5021. The guide plate 5021 is inserted along the guide groove 4021 to be clamped with a hopper fixing ring 416 arranged at the bottom of the piston left cover 409. The hopper assembly 50 and the brewing assembly 40 are fixedly connected.

[0054] The powder pressing piston 410 is arranged as a "flat cylinder". An outer side wall of the powder pressing piston 410 is provided with an induction magnet 413. An inner wall of the brewing assembly 40 shell is provided with a piston lower dead point induction plate 414 and a piston upper dead point induction plate 415. The piston lower dead point induction plate 414 is arranged at the bottom of the brewing assembly 40 shell and is provided with a Hall element capable of sensing the induction magnet 413 inside. The piston upper dead point induction plate 415 is arranged at the top of the brewing assembly 40 shell. According to the principle of Hall induction, the working time of the powder pressing motor 406 and the powder pressing piston 410 is accurately controlled. The powder pressing piston 410 and the powder channel cover plate 411 are structurally matched to control the opening and closing of the powder channel cover plate 411 to the powder channel. The powder pressing piston 410 and the powder channel cover plate 411 are independently driven to move to accurately open and close and prevent leakage. Figure 3The outer wall of the powder compression piston 410 is further provided with a water inlet 4020 extending outward, and the piston right cover 408 and the piston left cover 409 are combined to form a sliding groove, and the water inlet 4020 moves up and down in the sliding groove along with the screw rod 407. The powder compression piston 410 flattens the coffee powder in the powder bowl 501, the hot water in the water tank is pressurized and flows into the powder 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 powder bowl 501 to the liquid receiving hopper, and then flows out from the liquid outlet pipe and is received by a coffee cup below the liquid outlet pipe. The application can automatically place coffee powder in the powder bowl 501, automatically distribute and compress the coffee powder inside, and extract the coffee powder.

[0055] Referring to Figure 5 , Figure 7 , Figure 8 and Figure 9 The powder channel cover plate 411 includes a cover plate upper plane 4111 and a cover plate side arc surface 4112, and the cover plate upper plane 4111 and the cover plate side arc surface 4112 are fixedly connected. The cover plate shaft 412 penetrates the side wall of the powder channel cover plate 411 perpendicularly, that is, the cover plate upper plane 4111 and the cover plate side arc surface 4112 are installed in the connecting hole 5081, the powder channel cover plate 411 can rotate along the cover plate shaft 412, and the two ends of the cover plate shaft 412 are fixed on the cover plate mounting holes 5082 on the two sides of the piston left cover 409. When the powder channel cover plate 411 closes the lower outlet end of the lower powder port channel B, the inner side wall of the cover plate side arc surface 4112 abuts against the outer side wall of the powder compression piston 410. The lower powder port channel B302 is a square channel, and the two edges in the vertical direction of the lower outlet end are vertically downward. When the powder channel cover plate 411 closes the lower powder port channel B, the two edges in the horizontal direction of the lower outlet end of the lower powder port channel B abut against the outer side wall of the cover plate side arc surface 4112, and the two edges in the horizontal direction of the lower outlet end of the lower powder port channel B are arc-shaped and have the same curvature as the cover plate side arc surface 4112.

[0056] The powder compression piston 410 is provided with a piston upper arc surface 4101 and a piston side arc surface 4102. The piston upper arc surface 4101 is arranged at the chamfered portion of the top of the outer side wall of the powder compression piston 410 facing the powder channel cover plate 411. The piston side arc surface 4102 is arranged as a fan-shaped ring-shaped protrusion extending outward from the outer side wall of the powder compression piston 410 facing the powder channel cover plate 411, and is used for abutting against the cover plate upper plane 4111 and the cover plate side arc surface 4112, respectively.

[0057] When the powder compression piston 410 rises, the piston upper round corner surface 4101 of the powder compression piston 410 contacts the cover plate upper plane 4111 of the powder channel cover plate 411, which drives the powder channel cover plate 411 to rotate, separates the powder channel cover plate 411 from the lower powder passage B302, and opens the lower outlet end of the lower powder passage B302; when the powder compression piston 410 moves downward, the piston side round corner surface 4102 of the powder compression piston 410 contacts the cover plate side arc surface 4112, the piston side round corner surface 4102 extrudes the cover plate side arc surface 4112, which drives the powder channel cover plate 411 to rotate until the powder channel cover plate 411 and the lower powder passage B302 are attached, and the lower outlet end of the lower powder passage B302 is sealed.

[0058] With reference to Figure 2 , the brewing assembly 40 shell is provided with a guide groove 4021, the funnel assembly 50 is provided with a guide plate 5021 corresponding to the guide groove 4021, and the guide plate 5021 of the funnel assembly 50 is inserted into the brewing assembly 40 along the guide groove 4021; the funnel assembly 50 is open upward, the powder bowl 501 is arranged inside the funnel assembly 50, and the ground coffee powder falls into the powder bowl 501 through the lower powder passage. The powder compression piston 410 extends into the inside of the powder bowl 501, and the outer wall of the powder compression piston 410 is attached to the inner wall of the powder bowl 501; the brewed coffee powder 60 is arranged inside the powder bowl 501 and is compacted by the powder compression piston 410.

[0059] With reference to Figure 11 , Figure 12 and Figure 13 , the funnel assembly 50 is provided with an upwardly open containing cavity, and the powder bowl 501 is axially clamped in the containing cavity 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 arranged at the top of the powder bowl 501, and the powder bowl gear 5022 can drive the powder bowl 501 to rotate through gear cooperation under the action of the bean grinding motor 101; when the powder bowl body 5012 rotates relative to the funnel assembly 50, the coffee powder entering the powder bowl body 5012 is automatically distributed.

[0060] With reference to Figure 14 and Figure 16 , preferably, the limiting structure includes an annular groove 5031 arranged on the outer wall of the powder bowl body 5012 and a spring glass bead 5016 arranged on the inner wall of the funnel assembly 50, the annular groove 5031 is located corresponding to the spring glass bead 5016, and when the powder bowl 501 rotates, the spring glass bead 5016 is always located in 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 relative position of the funnel assembly 50 and the powder bowl body 5012 in the vertical direction is fixed.

[0061] Specifically, the funnel assembly 50 is provided with a mounting portion 5018 for mounting the spring ball 5016 and the handle 5017. Preferably, the mounting portion 5018 is provided as a cylindrical mounting portion 5018 extending outward from the side wall of the funnel assembly 50.

[0062] The cylindrical mounting portion 5018 is provided with a through mounting hole 5019. In the embodiment of the present application, the mounting hole 5019 has a front end close to the powder bowl 501 and a rear end away from the powder bowl 501. The inner diameter of the front end of the mounting hole 5019 is smaller than that of the rear end. The front end of the mounting hole 5019 is used to mount the spring ball 5016. The spring ball 5016 includes a ball and an elastic cylinder. The front end of the elastic cylinder extends outward to form a circular truncated cone. The bottom surface of the circular truncated cone is connected to the elastic cylinder and has the same size as the cross section of the elastic cylinder. The top of the circular truncated cone is provided with a central groove 5064. The ball extends out of the central groove 5064 of the circular truncated cone at the front end of the elastic cylinder. The center of the ball is located inside the central groove 5064. The ball can rotate and will not slide out of the central groove 5064. The outer wall of the rear end of the spring ball 5016 is tightly fitted with the inner wall of the front end of the mounting hole 5019. The ball of the spring ball 5016 extends out of the mounting hole 5019 and enters the annular groove 5031 of the bowl body 5012. The ball of the spring ball 5016 can rotate. The rotation of the ball of the spring ball 5016 reduces the mechanical wear caused by the rotation of the powder bowl 501.

[0063] The rear end of the mounting hole 5019 is used to insert the mounting column 5020 of the handle 5017. The mounting column 5020 limits the spring ball 5016. When the spring ball 5016 needs to be replaced, the handle 5017 is removed and the spring ball 5016 is replaced. The rear end of the mounting hole 5019 and the mounting column 5020 are screw connected.

[0064] Preferably, the limiting structure further includes a clamping groove 5062 provided on the top of the powder bowl body 5012 and a limiting protruding ring 5063 provided on the top of the funnel assembly 50. The opening of the funnel assembly 50 is upward. The top of the powder bowl body 5012 is provided with a clamping groove 5062 with downward opening. The clamping groove 5062 is connected to the limiting protruding ring 5063 on the top of the funnel assembly 50. The gear of the powder bowl gear 5022 is provided on the periphery of the top 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. The powder bowl body 5012 does not make any linear motion at any angle in the horizontal direction relative to the funnel assembly 50. The clamping groove 5062 is connected to the limiting protruding ring 5063. The clamping groove 5062 is provided as a circular ring groove and the limiting protruding ring 5063 is provided as a circular ring protruding ring. The axial clamping structure cooperation of the funnel assembly 50 and the powder bowl 501 through the limiting structure provides accurate positioning of the powder bowl body 5012 in the axial and radial directions, ensuring that each rotation of the powder bowl 501 can be perfectly aligned with the funnel assembly 50.

[0065] When assembling the powder bowl 501 and the funnel assembly 50, first, the powder bowl 501 is placed inside the funnel assembly 50, and the clamping groove 5062 clamps the limiting protruding ring 5063. Then, the spring ball 5016 is installed into the mounting hole 5019, and finally, the handle 5017 is screwed with the mounting hole 5019, and the ball of the spring ball 5016 is pushed into the annular groove 5031 by the mounting column 5020 of the handle 5017. The good structure design of the present application makes it easy to replace the spring ball 5016 later. When the spring ball 5016 is removed, the powder bowl 501 can be easily taken out of the funnel assembly 50 (such as quickly lifting), which facilitates the user to clean the powder bowl 501 and the funnel assembly 50 thoroughly, avoiding the accumulation of coffee residue and dirt affecting the flavor.

[0066] The present application realizes automatic and uniform powder distribution through the rotation of the powder bowl 501, and the funnel assembly 50 and the powder bowl 501 are axially clamped by the limiting structure to realize the precise rotation of the powder bowl 501 in the funnel assembly 50, which guarantees the smooth rotation of the powder bowl 501 when it is pressed to crush the powder, avoids jamming and uneven stress, and at the same time guarantees the sealing performance and the quality of the powder crushing of the powder bowl assembly.

[0067] Referring to Figure 15 and Figure 17 , the powder bowl 501 further comprises a powder cake push plate 5011, and the powder bowl body 5012 is arranged inside the funnel assembly 50. The bottom of the powder bowl body 5012 extends upward in an open shape, and the powder cake push plate 5011 is arranged at the bottom of the open extension structure. The powder cake push plate 5011 is provided with a second elastic limiting structure, which enables the powder cake push plate 5011 to move vertically along the powder bowl body 5012. The funnel assembly 50 is provided with a push plate button 5015, which pushes the powder cake push plate 5011 upward, so that the coffee powder cake residue adhering to the inner wall of the powder bowl body 5012 is separated from the inner wall of the powder bowl body 5012.

[0068] The powder cake push plate 5011 comprises a top disc, two connecting columns C5032 and a protruding portion 5034. The coffee powder cake entering the powder bowl 501 is placed on the top disc, and the two connecting columns C5032 and the protruding portion 5034 extend downward from the top disc, respectively. The protruding portion 5034 is located at the center of the top disc, and the two connecting columns C5032 are symmetrically arranged about the protruding portion 5034. The top disc, the connecting columns C5032 and the protruding portion 5034 are integrally formed. When the powder cake push plate 5011 is at the lowest position in the powder bowl body 5012, the outer side wall of the top disc is tightly attached to the inner wall of the powder bowl body 5012. The outer side wall of the top disc can also be circumferentially provided with a groove for arranging a sealing ring.

[0069] The second elastic limiting structure comprises a push plate spring 5013. The bottom of the powder bowl body 5012 is provided with a central large hole corresponding to the fitting protruding part 5034 and two small holes corresponding to the two connecting columns C5032. The connecting column C5032 penetrates the small hole in the bottom wall of the powder bowl body 5012 and is fixedly connected with the screw C5014 outward, and the bottom of the connecting column C5032 is provided with a screw hole C5033, and the screw C5014 is inserted into the screw hole C5033 and is threadedly connected. The push plate spring 5013 is arranged on the outer wall of the connecting column C5032 and is limited between the bottom wall of the powder bowl body 5012 and the screw C5014. When the powder cake push plate 5011 is located at the lowest position in the powder bowl body 5012, the push plate spring 5013 is in a natural state; when the protruding part 5034 is pushed upward, the powder cake push plate 5011 moves upward, and the push plate spring 5013 is compressed. The application avoids the mode that the related art separates the powder cake residue from the powder bowl by impacting the powder bowl, avoids deformation, wear or damage of the powder bowl caused by long-term impact, reduces replacement cost, reduces noise caused by impacting the powder bowl to make the powder cake fall off, reduces mechanical stress caused by impact, reduces the risk of loosening or failure of internal parts of the coffee machine, improves the overall reliability of the coffee machine, prolongs the service life of the powder bowl and the coffee machine, and improves the durability, quietness, safety and use convenience of the coffee machine.

[0070] The push plate button 5015 comprises 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 protruding part 5034 upward to drive the powder cake push plate 5011 upward. The rotating part 5051 and the funnel assembly 50 are fixedly connected through a rotating shaft 5050 perpendicular to the side surface of the rotating part 5051, and the rotating part 5051 is arranged in the funnel assembly 50 and can rotate along the rotating shaft 5050. The left end of the push plate part 5052 is connected with the rotating part 5051, and the right end is connected with the button part 5053. The baffle 5054 is vertically arranged on the button part 5053 and is provided as a circular arc surface. In addition to limiting, the baffle 5054 can also play a sealing role to prevent dust.

[0071] The protruding part 5034 is provided as a hollow circular groove, the circular groove of the protruding part 5034 is open downward, and the push plate part 5052 is provided as a hollow cylinder; when the powder cake push plate 5011 is located at the lowest position in the powder bowl body 5012, the bottom wall of the circular groove of the protruding part 5034 abuts against the top wall of the hollow cylinder of the push plate part 5052.

[0072] The bottom of the funnel assembly 50 is provided with a rotating groove 5041 matched with the rotating part 5051, the rotating part 5051 and the rotating groove 5041 are clamped, and the rotating groove 5041 is provided as a groove-shaped structure made of elastic material; the bottom of the funnel assembly 50 is also provided with an upward stand column 5042 corresponding 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 part 5052, and when the powder cake push plate 5011 is located at the lowest position in the powder bowl body 5012, that is, the round groove bottom wall of the protruding part 5034 abuts against the hollow cylindrical top wall of the push plate part 5052, the column 5042 and the push plate part 5052 are both vertically upward, and a certain distance is left between the outer wall of the column 5042 and the inner wall of the push plate part 5052. Refer to Figure 15 and Figure 17 When the button part 5053 is pressed upward, the push plate button 5015 rotates along the rotating shaft 5050, the push plate part 5052 can rotate at a certain angle outside the column 5042, the hollow cylindrical end top wall of the push plate part 5052 lifts the round groove bottom wall of the protruding part 5034 away from the rotating shaft 5050, the powder cake push plate 5011 moves upward, and the push plate spring 5013 is compressed. When rotated to the maximum angle, the column 5042 limits the push plate part 5052 from continuing to move upward.

[0073] The push plate button 5015 cooperates to push the powder cake push plate 5011 upward, which facilitates pushing out the coffee powder cake residue adhered to the bottom of the powder bowl body 5012. After cleaning the coffee powder in the powder bowl, the powder cake push plate 5011 is pressed downward, the push plate spring 5013 returns to the original state, and the powder cake push plate 5011 returns to the lowest position in the powder bowl body 5012. The initial position and the raised position of the powder cake push plate 5011 of the present application do not affect the sealing of the powder bowl 501 and there is no case of inadvertently changing the position of the powder bowl 501, which can maintain the stability and consistency of coffee making. Ensure the stability of coffee quality.

[0074] The first coffee outlet 5071 extends downward in the center of the powder cake push plate 5011, the second coffee outlet 5072 is arranged at the bottom of the funnel assembly 50 and communicates with the first coffee outlet 5071, and the first coffee outlet 5071 rotates circumferentially relative to the second coffee outlet 5072. The coffee extracted in the powder bowl 501 is discharged from the second coffee outlet 5072.

[0075] The present application cooperates the powder cake push plate 5011, the push plate spring 5013, the push plate button 5015 and the powder bowl body 5012, the push plate button 5015 pushes the powder cake push plate 5011 upward to move, which facilitates easily pushing out the coffee powder cake residue at the bottom of the powder bowl body 5012 and cleaning the powder cake residue on the inner wall of the powder bowl body 5012. The present application can make the powder cake residue more conveniently separated from the powder bowl, facilitate cleaning and reduce residue splashing. It is beneficial to the cleaning of the powder bowl and the coffee machine, improves the convenience of cleaning, and is convenient, fast and efficient.

[0076] The working principle of the embodiment of the present application is as follows:

[0077] 1. When grinding coffee beans, the user inserts the coffee funnel assembly 50 along the guide slot 4021 into the brewing assembly 40, the powder pressing motor 406 works clockwise, the motor gear 403 drives the gear lead screw transmission gear 404, the lead screw gear 405 rotates clockwise, the lead screw gear 405 drives the lead screw 407, the powder pressing piston 410 moves upward, the magnet 413 is arranged in the powder pressing piston 410, when the powder pressing piston 410 moves up to the position of the piston upper dead center sensing plate 415, the Hall element on the piston upper dead center sensing plate 415 senses the magnet 413, and the powder pressing motor 406 stops.

[0078] 2. When the powder pressing piston 410 rises, the piston upper fillet surface 4101 on the powder pressing piston 410 contacts the cover plate upper plane 4111 of the powder channel cover plate 411, drives the powder channel cover plate 411 to rotate, separates the lower powder channel B 302 from the powder channel cover plate 411, and thus opens the lower powder channel, allowing the ground powder to fall into the powder bowl 501.

[0079] 3. The bean grinder motor 101 is started, power is transmitted to the cone knife transmission shaft 105 through gear cooperation, the bean grinder cone knife 104 is driven to grind coffee beans into coffee powder, and the ground coffee powder falls into the powder bowl 501 through the lower powder channel A 301 and the lower powder channel B 302. The lower powder channel A 301 is fixed on the bean grinder assembly 10, the lower powder channel B 302 is movably connected to the lower powder channel A 301 through the powder channel spring 303, and the lower powder channel B 302 can be movably connected to the lower powder channel A 301, so that the powder channel cover plate 411 and the lower powder channel B 302 are more closely attached.

[0080] 4. After grinding the powder, the powder pressing motor 406 works counterclockwise, the motor gear 403 drives the gear lead screw transmission gear 404, the lead screw gear 405 rotates counterclockwise, the lead screw gear 405 drives the lead screw 407, the powder pressing piston 410 moves downward, the magnet 413 is arranged in the powder pressing piston 410, when the powder pressing piston 410 moves down to the position of the piston lower dead center sensing plate 414, the Hall element on the 414 senses the magnet 413, and the powder pressing motor 406 stops.

[0081] 5. During the downward movement of the powder pressing piston 410, the piston side fillet surface 4102 and the cover plate side arc surface 4112 are in contact, when the powder pressing piston 410 moves to the position of the piston lower dead center sensing plate 414, the piston side fillet surface 4102 on the powder channel cover plate 411 extrudes the cover plate side arc surface 4112, so that the powder channel cover plate 411 and the lower powder channel B 302 are attached, and the outlet of the lower powder channel B 302 is sealed.

[0082] 6. When the powder pressing piston 410 moves to the position of the piston lower dead center sensing plate 414, the powder pressing piston 410 compacts the brewed coffee powder 60 into a powder cake.

[0083] In a second aspect, the present application provides a coffee machine comprising the powder dropping and distributing mechanism.

[0084] In summary, the present application provides a powder dropping and distributing mechanism and a coffee machine with relatively simplified mechanical structure, precise control and reliable sealing. In the present application, the grinding motor 101 drives the grinding cone knife 104 and the powder bowl 501 to rotate synchronously, so that the powder dropping and distributing are synchronized, and no additional rotary motor is needed to rotate the powder. The ground coffee powder falls into the powder bowl 501 through the powder dropping channel, and the powder bowl 501 rotates during the operation of the grinding motor 101, so that the falling coffee powder is evenly distributed in the powder bowl 501. The structure is simplified and the cost is saved. The powder pressing motor 406 drives the powder pressing piston 410 to move, and cooperates with the powder channel cover plate 411 and the telescopic powder dropping channel to realize the opening and closing of the powder channel. Furthermore, the cooperation of the spring glass bead 5016 and the annular groove 5031 on the side of the powder bowl body 5012 realizes the relative rotary connection of the powder bowl 501 and the funnel assembly 50 and automatic powder distribution. In addition, the cooperation of the push plate button 5015 at the bottom of the funnel assembly 50 and the powder cake push plate 5011 facilitates the pushing out of the coffee powder residues adhered to the bottom of the powder bowl 501 and the cleaning of the powder cake in the powder bowl.

[0085] The above are preferred embodiments of the present application, but do not limit the protection scope of the present application, so that: any equivalent changes made according to the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A powder dispensing and powder application mechanism, characterized in that, The grinder assembly (10), the gear assembly (20), the lower powder channel assembly (30), the funnel assembly (50) and the powder bowl (501); The grinder assembly (10) is provided with a grinder motor (101), a grinder cone cutter (104) and a cone cutter transmission shaft (105); the grinder motor (101) drives the cone cutter transmission shaft (105) to rotate, and the cone cutter transmission shaft (105) is coaxially connected with the grinder cone cutter (104); the cone cutter transmission shaft (105) is in transmission connection with the gear assembly (20), and the gear assembly (20) is in transmission connection with the powder bowl (501), so that the powder bowl (501) rotates in the funnel assembly (50); The powder outlet of the lower powder channel assembly (30) faces the powder bowl (501); The funnel assembly (50) is provided with an upwardly open accommodating cavity, and the powder bowl (501) is in circumferential rotation connection with the funnel assembly (50) through a limiting structure; the powder bowl (501) comprises a powder bowl gear (5022) and a powder bowl bowl body (5012), the powder bowl gear (5022) is arranged at the top of the powder bowl (501), and the powder bowl gear (5022) is used for transmission connection with the gear assembly (20) to drive the powder bowl (501) to rotate circumferentially; The limiting structure comprises an annular groove (5031) arranged on the outer wall of the powder bowl bowl body (5012) and a spring glass bead (5016) arranged on the inner wall of the funnel assembly (50), and the annular groove (5031) is located corresponding to the spring glass bead (5016); when the powder bowl (501) rotates, the annular groove (5031) of the powder bowl bowl body (5012) rotates along the spring glass bead (5016); The lower powder channel assembly (30) comprises a lower powder channel A (301) and a lower powder channel B (302), the lower powder channel A (301) and the lower powder channel B (302) are in sliding connection through a first elastic limiting structure, the lower powder channel B (302) is sleeved on the outer wall of the lower powder channel A (301), and under the action of the first elastic limiting structure, the lower powder channel B (302) can slide along the lower powder channel A (301) in an expansion and contraction mode; The brewing assembly (40) is internally provided 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 with the powder pressing piston (410), the powder pressing motor (406) drives the lead screw (407) to rotate up and down through gear cooperation, and drives the powder pressing piston (410) to move up and down; when the powder pressing piston (410) moves up or down to a triggering position, the powder pressing motor (406) stops working; The powder channel cover plate (411) is rotationally connected with the shell of the brewing assembly (40); the powder channel cover plate (411) can rotate by a certain angle in the brewing assembly (40); during the upward movement of the powder pressing piston (410), the lower powder channel B (302) pushes open the powder channel cover plate (411) to open the lower powder channel B (302) under the action of the first elastic limiting structure; when the powder pressing piston (410) moves down to the triggering position, the powder pressing piston (410) drives the powder channel cover plate (411) to rotate to close the lower powder channel B (302).

2. The mechanism according to claim 1, wherein The grinding assembly (10) further comprises a motor worm (102), a worm wheel (103), a transmission shaft gear (106), the motor worm (102) is coaxially connected with the grinding motor (101), the motor worm (102) and the upper part of the worm wheel (103) are engaged, the motor worm (102) drives the worm wheel (103) to rotate; the lower part of the worm wheel (103) is engaged with the transmission shaft gear (106), the grinding cone cutter (104) and the transmission shaft gear (106) rotate coaxially with the cone cutter transmission shaft (105); the grinding cone cutter (104) is arranged at the top of the cone cutter transmission shaft (105).

3. A mechanism according to claim 2, wherein The gear assembly (20) comprises a powder bowl driving gear (201), a powder bowl transmission gear A (202), a powder bowl transmission gear B (203), and a powder bowl transmission gear C (204), the powder bowl driving gear (201) is connected at the bottom of the cone cutter transmission shaft (105) and rotates coaxially with the cone cutter transmission shaft (105); the powder bowl driving gear (201) and the powder bowl transmission gear A (202) are engaged, the powder bowl driving gear (201) drives the powder bowl transmission gear A (202) to rotate; the powder bowl transmission gear A (202) and the powder bowl transmission gear B (203) are engaged, the powder bowl transmission gear A (202) drives the powder bowl transmission gear B (203) to rotate; the powder bowl transmission gear B (203) and the powder bowl transmission gear C (204) are engaged, the powder bowl transmission gear B (203) drives the powder bowl transmission gear C (204) to rotate; the powder bowl transmission gear C (204) and the powder bowl gear (5022) are engaged, the powder bowl transmission gear C (204) drives the powder bowl gear (5022) to rotate.

4. The mechanism according to claim 1, wherein The limiting structure further comprises a clamping groove (5062) arranged at the top of the powder bowl body (5012) and a limiting protruding ring (5063) arranged at the top of the funnel assembly (50), the clamping groove (5062) clamps the limiting protruding ring (5063).

5. The mechanism of claim 1, wherein The bottom of the powder bowl body (5012) extends in an open shape from bottom to top, the powder cake push plate (5011) is arranged at the bottom of the open extension structure, the powder cake push plate (5011) is provided with a second elastic limiting structure, the second elastic limiting structure enables the powder cake push plate (5011) to move vertically along the powder bowl body (5012); the funnel assembly (50) is provided with a push plate button (5015), the powder cake push plate (5011) is pushed upward by the push plate button (5015), so that the coffee powder cake residue adhered to the inner wall of the powder bowl body (5012) is separated from the inner wall of the powder bowl body (5012).

6. A mechanism according to claim 5, wherein The powder cake push plate (5011) extends downwardly to have a first coffee outlet (5071), the bottom of the funnel assembly (50) is provided with a second coffee outlet (5072) in communication with the first coffee outlet (5071), and the first coffee outlet (5071) rotates circumferentially relative to the second coffee outlet (5072).

7. A coffee maker, characterized in that The coffee machine comprises the powder distribution mechanism according to any one of claims 1-6.

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