Coffee machine and powder falling opening and closing mechanism thereof

Abstract

The utility model discloses a coffee machine and a powder falling opening and closing mechanism thereof. The powder falling opening and closing mechanism comprises a powder guiding piece, a powder discharging opening and a powder discharging opening, wherein the powder guiding piece is provided with a powder discharging opening; the shell is connected to the powder guide piece; the opening and closing plate is connected to the shell in a sliding manner; the driving assembly is connected to the opening and closing plate and used for driving the opening and closing plate to move between the opening position where the powder falling opening is opened and the closing position where the powder falling opening is closed. The technical problem to be solved by the utility model is how to prevent water vapor from entering the powder falling port.

Description

Technical Field

[0001] The utility model relates to the field of electrical equipment, and more specifically, to a coffee machine and a powder dropping opening and closing mechanism thereof. Background Art

[0002] The grinding device of a drip coffee machine grinds coffee beans into coffee powder and then conveys the coffee powder to a powder supply pipe. The coffee powder is conveyed along the powder supply pipe to a powder dropping port, and the coffee powder is conveyed from the powder dropping port into a brewing cavity. Then, brewing water is injected into the brewing cavity through a water injection port of the drip coffee machine to extract coffee.

[0003] Since the temperature of the brewing water is usually relatively high, when the water injection port injects brewing water into the brewing cavity, water vapor easily enters the powder dropping port and enters the powder supply pipe upstream of the powder dropping port along the powder dropping port, causing the powder supply pipe and the powder passing port to be wet. When the wet powder supply pipe conveys coffee powder, it will cause the coffee powder to flow down unevenly, and the inner wall of the powder supply pipe is easily stained with coffee powder, resulting in the inside of the powder supply pipe being dirty. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is how to prevent water vapor from entering the powder dropping port.

[0005] The present application provides a powder dropping opening and closing mechanism of a coffee machine, which includes:

[0006] A powder guiding member provided with a powder dropping port for outputting coffee powder;

[0007] A housing connected to the powder guiding member;

[0008] An opening and closing plate slidably connected to the housing; and,

[0009] A driving assembly connected to the opening and closing plate for driving the opening and closing plate to slide between an open position for opening the powder dropping port and a closed position for closing the powder dropping port.

[0010] In a schematic embodiment, it further includes an elastic connection assembly for elastically connecting the powder guiding member and the housing;

[0011] The elastic connection assembly applies an elastic force to the powder guiding member so that when the opening and closing plate is in the closed position, the powder dropping port of the powder guiding member closely adheres to the opening and closing plate.

[0012] In a schematic embodiment, the elastic connection assembly and the opening and closing plate are respectively arranged on opposite sides of the housing;

[0013] A first through hole is provided on the housing, the powder guiding member passes through the first through hole, and the powder dropping port is arranged at one end of the powder guiding member close to the opening and closing plate;

[0014] Among them, a first inclined surface is provided at the end of the opening and closing plate, and a second inclined surface is provided at the end of the powder guide member close to the opening and closing plate. When the opening and closing plate slides from the open position to the closed position, the first inclined surface squeezes the second inclined surface so that the powder guide member moves in a direction opposite to the elastic force it is subjected to.

[0015] In an exemplary embodiment, the powder guide member includes a powder guide portion provided with the powder drop port and a pressing portion connected to the powder guide portion, wherein the pressing portion is provided with a guide through hole;

[0016] The elastic connection assembly comprises:

[0017] A guide post, one end of which is connected to the housing and passes through the guide through hole;

[0018] a stopper connected to the guide post and provided with a protrusion located at an end of the guide post facing away from the housing; and

[0019] The first elastic member has two ends respectively abutting against the protruding portion and the pressing portion and is in a compressed state.

[0020] In an illustrative embodiment, the first elastic member is configured in a cylindrical or solenoid shape and is sleeved on the guide post.

[0021] In an illustrative embodiment, the powder guiding portion is arranged in a ring shape;

[0022] The clamping parts and the elastic connection components are both provided in plurality, the plurality of clamping parts are evenly distributed in the circumferential direction of the powder guiding part, and the plurality of elastic connection components are elastically connected to the plurality of clamping parts respectively.

[0023] In an illustrative embodiment, the housing is provided with a slide groove, the first through hole penetrates the wall surface of the slide groove, and the opening and closing plate slides along the slide groove.

[0024] In an exemplary embodiment, it further comprises a bottom plate provided with a second through hole aligned with the first through hole, the bottom plate covering the opening of the slide groove;

[0025] When the opening and closing plate is in the open position, the powder guiding member passes through the first through hole and the second through hole, and the powder dropping port is located on a side of the bottom plate facing away from the opening and closing plate.

[0026] In an illustrative embodiment, the driving assembly includes a rack connected to the opening and closing plate, a gear meshing with the rack, and a motor for driving the gear to rotate;

[0027] Wherein, the extending direction of the rack is parallel to the sliding direction of the opening and closing plate.

[0028] In a schematic embodiment, the powder dropping opening and closing mechanism further includes a first limit switch and a second limit switch, and both the first limit switch and the second limit switch are configured to close the motor after being triggered;

[0029] A limit portion is provided on the rack, and the limit portion is configured to trigger the first limit switch when the opening and closing plate is in the open position, and trigger the second limit switch when the opening and closing plate is in the closed position.

[0030] In a schematic embodiment, a plurality of the limit portions are provided, and the plurality of limit portions include a first limit portion and a second limit portion spaced apart from the first limit portion;

[0031] The first limit portion is configured to trigger the first limit switch when the opening and closing plate is in the open position, and the second limit portion is configured to trigger the second limit switch when the opening and closing plate is in the closed position.

[0032] In a schematic embodiment, a connecting portion is provided on the opening and closing plate;

[0033] The driving assembly includes an electromagnetic push rod and a second elastic member;

[0034] The electromagnetic push rod includes a main body connected to the housing and a push rod capable of extending out of the main body. The direction in which the push rod extends out of the main body is parallel to the sliding direction of the opening and closing plate, and the push rod is connected to the connecting portion;

[0035] Wherein, the electromagnetic push rod is configured to extend the push rod to push the opening and closing plate from the closed position to the open position, and the second elastic member is used to apply an elastic force opposite to the extending direction of the push rod to the connecting portion to push the opening and closing plate to the closed position after the push rod no longer extends.

[0036] The present application also provides a coffee machine, which includes: a housing provided with a water injection port and the powder dropping opening and closing mechanism as described above;

[0037] Wherein, the housing is connected to the housing, and the water injection port is used to output brewing water.

[0038] The present application also provides a coffee machine, which includes: a housing, a water injection device connected to the housing, and the powder dropping opening and closing mechanism as described above;

[0039] The powder dropping opening and closing mechanism is arranged above the water injection device, and the housing is connected to the water injection device. The water injection device is provided with a water injection port, and the water injection port is used to output brewing water;

[0040] The water injection device is provided with a powder dropping channel, and the powder dropping port is communicated with the powder dropping channel.

[0041] The present application also provides a coffee machine, which includes:

[0042] A body including the powder dropping opening and closing mechanism as described above, and a water injection port is further provided on the body;

[0043] A filtering component located below the powder dropping port and the water injection port, having a brewing chamber and a feeding port provided at the top of the brewing chamber;

[0044] A moving mechanism connected to the body and the filtering component;

[0045] Wherein, the moving mechanism is used to drive the filtering component to move between a powder receiving position where the feeding port is aligned with the powder dropping port and a water receiving position where the feeding port is aligned with the water injection port. When the filtering component is in the water receiving position, the feeding port is not directly below the powder dropping port; when the filtering component is in the powder receiving position, the driving component drives the opening and closing plate to move to the open position, and when the filtering component is not in the powder receiving position, the driving component drives the opening and closing plate to move to the closed position.

[0046] In the technical solution of the present application, the driving component can drive the opening and closing plate to slide to the open position, and the opening and closing plate moves away from the powder dropping port, so that the powder dropping port can output coffee powder. After the powder dropping port outputs the coffee powder required for brewing a cup of coffee once, the driving component can drive the opening and closing plate to slide to the closed position, and the opening and closing plate closes the powder dropping port. When the coffee machine subsequently injects water to brew the coffee powder, since the powder dropping port is closed, the water vapor generated during the water injection process cannot enter the powder dropping port, and the powder dropping port and the powder supply pipe upstream of the powder dropping port can always remain dry, so that the powder supply pipe can maintain smooth powder dropping and internal cleanliness. When the powder dropping port is closed, foreign objects can also be prevented from entering the powder dropping port, and the freshness preservation time of coffee beans can be extended.

[0047] Other features and advantages of the present utility model will be described in the subsequent description, and part of them will become obvious from the description, or will be understood by implementing the present utility model. The objectives and other advantages of the present utility model can be achieved and obtained through the structures specifically pointed out in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] The drawings are used to provide a further understanding of the technical solution of the present utility model, and constitute a part of the description. They are used together with the embodiments of the present application to explain the technical solution of the present utility model, and do not constitute a limitation to the technical solution of the present utility model.

[0049] Figure 1 It is a sectional view of a partial structure of a coffee machine in Embodiment 1 of the present utility model;

[0050] Figure 2 It is a three-dimensional schematic diagram of a powder dropping opening and closing mechanism in Embodiment 1 of the present utility model;

[0051] Figure 3 Disassembly schematic diagram of a powder dropping opening and closing mechanism in Embodiment 1 of the present utility model;

[0052] Figure 4 Full-section schematic diagram of the powder dropping opening and closing mechanism with the opening and closing plate in the open position in Embodiment 1 of the present utility model;

[0053] Figure 5 Full-section schematic diagram of the powder dropping opening and closing mechanism with the opening and closing plate in the closed position in Embodiment 1 of the present utility model;

[0054] Figure 6 Partial-section diagram of the powder dropping opening and closing mechanism with the opening and closing plate in the open position in Embodiment 1 of the present utility model;

[0055] Figure 7 Stereo schematic diagram of a powder dropping opening and closing mechanism in Embodiment 2 of the present utility model;

[0056] Figure 8 Full-section schematic diagram of the powder dropping opening and closing mechanism with the opening and closing plate in the open position in Embodiment 2 of the present utility model;

[0057] Figure 9 Full-section schematic diagram of the powder dropping opening and closing mechanism with the opening and closing plate in the closed position in Embodiment 2 of the present utility model;

[0058] Figure 10 Partial-section diagram of a local structure of a coffee machine in Embodiment 3 of the present invention;

[0059] Figure 11 Disassembly schematic diagram of a coffee machine in Embodiment 4 of the present invention;

[0060] Figure 12 Stereo schematic diagram of the coffee machine with the filter assembly in the powder receiving position in Embodiment 4 of the present invention;

[0061] Figure 13 Cross-sectional view schematic diagram of the coffee machine with the filter assembly in the powder receiving position in Embodiment 4 of the present invention;

[0062] Figure 14 Stereo schematic diagram of the coffee machine with the filter assembly in the water receiving position in Embodiment 4 of the present invention;

[0063] Figure 15 Cross-sectional view schematic diagram of the coffee machine with the filter assembly in the water receiving position in Embodiment 4 of the present invention;

[0064] Figure 16 Connection schematic diagram of the filter assembly and the moving mechanism in Embodiment 4 of the present invention. Detailed implementation manners

[0065] To make the objectives, technical solutions, and advantages of the present utility model more clearly understood, the embodiments of the present utility model will be described in detail below with reference to the accompanying drawings. It should be noted that, without conflict, the embodiments in this application and the features in the embodiments can be arbitrarily combined with each other.

[0066] Embodiment 1

[0067] As Figure 1 shown, Figure 1 Figure 1 shows a partial structure of a coffee machine in Embodiment 1 of the present application. The coffee machine includes a powder supply device 300, a powder dropping opening and closing mechanism 100, a filtering assembly 400, and a machine housing 200.

[0068] The machine housing 200 is the framework structure of the coffee machine. The machine housing 200 can be a plastic machine housing 200 or a metal machine housing 200. The machine housing 200 includes a vertical column 201 and a cantilever 202. The vertical column 201 is arranged vertically. The cantilever 202 is arranged at the top of the vertical column 201 and extends in the horizontal direction. An installation opening 204 and a water injection port 203 are arranged at the bottom of the cantilever 202. There is a gap between the installation opening 204 and the water injection port 203.

[0069] The filtering assembly 400 includes a filtering funnel 401. A brewing chamber 402 is arranged inside the filtering funnel 401. A feed port 403 is arranged at the top of the brewing chamber 402, and a liquid outlet 404 is arranged at the bottom of the brewing chamber 402. The feed port 403 of the filtering funnel 401 is arranged below the installation opening 204 and the water injection port 203. The water injection port 203 can convey brewing water to the feed port 403 and then into the brewing chamber 402.

[0070] The powder supply device 300 is arranged inside the machine housing 200. The powder supply device 300 is provided with a powder supply pipe 301, and the powder supply pipe 301 can output coffee powder. The powder supply pipe 301 extends into the cantilever 202. The powder supply pipe 301 can be a flexible pipe or a rigid pipe. The powder supply device 300 can be a grinding device, and the grinding device can grind coffee beans into coffee powder and output the coffee powder through the powder supply pipe 301. The powder supply device 300 can also be a coffee powder bin, and the coffee powder bin contains coffee powder, and the coffee powder in the coffee powder bin is output through the powder supply pipe 301.

[0071] As Figure 2 、 3 shown, the powder dropping opening and closing mechanism 100 can be arranged inside the cantilever 202 of the machine housing 200. The powder dropping opening and closing mechanism 100 includes a powder guiding member 2, a housing 1, a switching plate 4, and a driving assembly 3. The housing 1 is arranged at the installation opening 204 of the machine housing 200. The housing 1 is connected to the machine housing 200. The connection between the housing 1 and the machine housing 200 can be a screw connection.

[0072] The powder guiding member 2 is connected to the housing 1. A powder dropping channel 211 is provided on the powder guiding member 2. The powder dropping channel 211 vertically penetrates the powder guiding member 2. The opening at the bottom end of the powder dropping channel 211 is a powder dropping port 212. The powder dropping port 212 is used for outputting coffee powder. The end of the powder supply pipe 301 of the powder supply device 300 extends into the powder dropping channel 211 and can convey coffee powder into the powder dropping channel 211. After the coffee powder conveyed by the powder supply device 300 enters the powder dropping channel 211, the coffee powder in the powder dropping channel 211 can be output through the open powder dropping port 212. The coffee powder output from the powder dropping port 212 can fall into the brewing chamber 402 of the filtering assembly 400 through the feed port 403 of the filtering assembly 400.

[0073] As Figure 4 , 5 shown, the opening and closing plate 4 is configured as a plate shape and can be a flat plate. The opening and closing plate 4 is slidably connected to the housing 1 and can slide relative to the housing 1. The opening and closing plate 4 can slide along a horizontal straight line. The opening and closing plate 4 can slide to the closed position. When the opening and closing plate 4 is in the closed position, it is inserted below the powder guiding member 2 and blocks the powder dropping port 212, and the powder dropping port 212 is in the closed state. The opening and closing plate 4 can slide to the open position. When the opening and closing plate 4 is in the open position, it is located on one side of the powder dropping port 212, the powder dropping port 212 is not blocked by the opening and closing plate 4, and the powder dropping port 212 is in the open state.

[0074] The driving assembly 3 is connected to the housing 1 and the opening and closing plate 4. The driving assembly 3 is configured to drive the opening and closing plate 4 to move between the open position and the closed position.

[0075] When making coffee with the coffee machine, as Figure 4 shown, the driving assembly 3 first drives the opening and closing plate 4 to slide to the open position, the opening and closing plate 4 moves away from the powder dropping port 212, and the powder dropping port 212 can output coffee powder to the brewing chamber 402 of the coffee machine. After the powder dropping port 212 outputs the coffee powder required for brewing a cup of coffee once, as Figure 5 shown, the driving assembly 3 then drives the opening and closing plate 4 to slide to the closed position, and the opening and closing plate 4 closes the powder dropping port 212. Then, brewing water is injected into the brewing chamber 402 from the water injection port 203. Since the powder dropping port 212 is closed, when brewing water is injected into the brewing chamber 402 from the water injection port 203 to brew the coffee powder, the water vapor generated during the water injection process cannot enter the powder dropping port 212, and the powder dropping port 212 and the powder supply pipe 301 upstream of the powder dropping port 212 can always remain dry, so that the powder supply pipe 301 can maintain smooth powder dropping and internal cleanliness.

[0076] In a schematic embodiment, as Figure 6As shown, the powder dropping opening and closing mechanism 100 further includes an elastic connection assembly 5. The elastic connection assembly 5 is connected to the powder guiding member 2 and the housing 1. The elastic connection assembly 5 elastically connects the powder guiding member 2 and the housing 1 together. The elastic connection assembly 5 applies an elastic force to the powder guiding member 2, and the direction of this elastic force is towards the movement locus of the opening and closing plate 4. When the opening and closing plate 4 is in the closed position, the opening and closing plate 4 blocks the powder dropping port 212 of the powder guiding member 2. The elastic force applied by the elastic connection assembly 5 to the powder guiding member 2 is towards the opening and closing plate 4, causing the powder guiding member 2 to be tightly pressed against the opening and closing plate 4, and further causing the powder dropping port 212 of the powder guiding member 2 to closely adhere to the plate surface of the opening and closing plate 4.

[0077] In this way, the powder dropping port 212 of the powder guiding member 2 closely adhering to the opening and closing plate 4 can improve the airtightness, thereby further preventing water vapor from entering the powder dropping port 212.

[0078] In a schematic embodiment, the housing 1 can be configured as a substantially plate-like structure. The elastic connection assembly 5 is arranged on one side of the housing 1, and the opening and closing plate 4 is arranged on the other side of the housing 1. A first through hole 12 is provided on the housing 1, and the elastic connection assembly 5 is arranged near the first through hole 12. The first through hole 12 vertically penetrates the housing 1. The powder guiding member 2 passes through the first through hole 12 of the housing 1. The powder dropping port 212 is located at one end of the powder guiding member 2 close to the opening and closing plate 4. The elastic connection assembly 5 is connected to the part of the powder guiding member 2 close to the elastic connection assembly 5. The direction of the elastic force applied by the elastic connection assembly 5 to the powder guiding member 2 is the same as the orientation of the powder dropping port 212 of the powder guiding member 2.

[0079] As Figures 3 - 5 shown, a first inclined surface 41 is provided at the end of the opening and closing plate 4 on the side facing the powder guiding member 3. The first inclined surface 41 can be the end face of the end of the opening and closing plate 4 on the side facing the powder guiding member 3. The first inclined surface 41 is inclined towards the powder guiding member 2. A second inclined surface 23 is provided on the end of the powder guiding member 2 close to the opening and closing plate 4. The second inclined surface 23 is inclined towards the powder guiding member 2. When the powder guiding member 2 is in the open position, the second inclined surface 23 is located on the side of the powder dropping port 212 close to the opening and closing plate 4. The second inclined surface 23 and the first inclined surface 41 can be parallel to each other.

[0080] When the opening and closing plate 4 is in the open position, the end of the opening and closing plate 4 provided with the first inclined surface 41 faces the end of the powder guiding member 2 provided with the powder dropping port 212, and the first inclined surface 41 of the opening and closing plate 4 is aligned with the second inclined surface 23 of the powder guiding member 2 in the sliding direction of the opening and closing plate 4. During the process of the opening and closing plate 4 sliding from the open position to the closed position, the first inclined surface 41 of the opening and closing plate 4 presses the second inclined surface 23 of the powder guiding member 2. A component force of the pressure received by the second inclined surface 23 is opposite to the direction of the elastic force applied by the elastic connection assembly 5 to the powder guiding member 2, and this component force is greater than this elastic force. The powder guiding member 2 can be pressed by the first inclined surface 41 of the opening and closing plate 4 to move in the direction opposite to the elastic force borne by the powder guiding member 2.

[0081] In this way, during the process of the opening and closing plate 4 sliding from the open position to the closed position, the powder guiding member 2 moves in the direction opposite to the elastic force it bears to make way for the opening and closing plate 4, enabling the opening and closing plate 4 to smoothly move to the closed position to cover the powder dropping port 212. At the same time, since the powder guiding member 2 moves in the direction opposite to the elastic force exerted on the elastic connection assembly 5, the elastic deformation of the elastic connection assembly 5 is greater, that is, the elastic force exerted by the elastic connection assembly 5 on the powder guiding member 2 becomes larger, the pressure between the powder guiding member 2 and the opening and closing plate 4 can be greater, and the sealing performance at the powder dropping port 212 is better.

[0082] In a schematic embodiment, as Figure 3 、 6 shown, the powder guiding member 2 includes a powder guiding portion 21 and a pressing portion 22. The powder guiding portion 21 is configured in a ring shape. The powder dropping channel 211 may be provided in the middle of the powder guiding portion 21 and vertically penetrate the powder guiding portion 21. The powder dropping port 212 and the second inclined surface 23 are both located at the bottom end of the powder guiding portion 21. The powder guiding portion 21 passes through the first through hole 12. A guiding through hole 221 is provided on the pressing portion 22. The guiding through hole 221 vertically penetrates the pressing portion 22. The guiding through hole 221 may be a circular hole. The pressing portion 22 is connected to the powder guiding portion 21 and is located on the side of the housing 1 facing away from the opening and closing plate 4. The pressing portion 22 and the powder guiding portion 21 may be an integrally formed structure.

[0083] The elastic connection assembly 5 includes a guiding column 51, a limiting member 53, and a first elastic member 52. The guiding column 51 is configured in a straight bar shape. The guiding column 51 may be vertically arranged. One end of the guiding column 51 is connected to the housing 1. The guiding column 51 may extend vertically upward from the housing 1. The guiding column 51 passes through the guiding through hole 221 of the pressing portion 22, and there is a clearance fit between the guiding column 51 and the guiding through hole 221, and the pressing portion 22 of the powder guiding member 2 can only slide along the guiding column 51. The powder guiding member 2 can slide along the guiding column 51 in the direction close to the housing 1, and the powder guiding member 2 can also slide along the guiding column 51 in the direction away from the housing 1. The limiting member 53 is connected to the guiding column 51. The limiting member 53 and the guiding column 51 may be threadedly connected, welded, or adhesively bonded. The limiting member 53 includes a protruding portion 531, which is protrudingly provided at one end of the guiding column 51 facing away from the housing 1. The protruding portion 531 may be circular and coaxially arranged with the guiding column 51, and the diameter of the protruding portion 531 is greater than the diameter of the guiding column 51. The limiting member 53 is preferably a screw, and the protruding portion 531 is the head of the screw. The first elastic member 52 is arranged between the protruding portion 531 of the limiting member 53 and the pressing portion 22 of the powder guiding member 2. One end of the first elastic member 52 abuts against the protruding portion 531 of the limiting member 53, and the other end of the first elastic member 52 abuts against the pressing portion 22 of the powder guiding member 2. The first elastic member 52 is in a compressed deformation state, and the first elastic member 52 exerts an elastic force on the pressing portion 22, and the direction of this elastic force is away from the protruding portion 531 and the same as the orientation of the powder dropping port 212.

[0084] In this way, during the process of the opening and closing plate 4 sliding from the open position to the closed position, the first inclined surface 41 of the powder guiding member 2 presses against the second inclined surface 23 of the powder guiding member 2. The powder guiding member 2 moves in the direction close to the limiting member 53, and the first elastic member 52 is compressed. The first elastic member 52 applies an elastic force to the pressing portion 22 of the powder guiding member 2, so that one end of the powder guiding portion 21 provided with the powder dropping port 212 is tightly pressed against the opening and closing plate 4, and thus the opening and closing plate 4 can more tightly seal the powder dropping port 212.

[0085] In a schematic embodiment, as Figure 6 shown, the first elastic member 52 can be configured as a cylindrical shape or a solenoid shape. The first elastic member 52 can be a rubber cylinder or a helical spring.

[0086] The first elastic member 52 is sleeved on the guiding column 51, which can prevent the first elastic member 52 from falling off and also avoid the first elastic member 52 from bending when being compressed.

[0087] In a schematic embodiment, the powder guiding portion 21 is configured as an annular shape. The powder dropping channel 211 is the middle channel of the powder guiding portion 21. A plurality of pressing portions 22 are provided. The plurality of pressing portions 22 are arranged on the outer peripheral surface of the powder guiding portion 21, and the plurality of pressing portions 22 are evenly distributed around the circumference of the powder guiding portion 21. For example, two pressing portions 22 are provided, and the two pressing portions 22 are arranged on opposite sides of the powder guiding portion 21.

[0088] A plurality of elastic connection components 5 are provided. The number of the elastic connection components 5 is the same as the number of the pressing portions 22. The plurality of elastic connection components 5 are respectively elastically connected to the plurality of pressing portions 22.

[0089] Since the plurality of pressing portions 22 of the powder guiding member 2 are respectively connected to the plurality of elastic connection components 5, and the plurality of pressing portions 22 are evenly distributed in the circumferential direction of the powder guiding portion 21, the powder guiding member 2 is subjected to balanced forces and slides more smoothly along the guiding column 51.

[0090] In a schematic embodiment, a sliding groove 11 is provided on the housing 1. The opening of the sliding groove 11 faces downward. The sliding groove 11 is a straight strip groove. The sliding groove 11 can be that the housing 1 arches upward. The first through hole 12 is provided on the wall surface of the sliding groove 11, and can be on the bottom wall of the sliding groove 11. The first through hole 12 penetrates the wall surface of the sliding groove 11.

[0091] The opening and closing plate 4 is configured as a flat plate and can be configured as a strip-shaped flat plate. The opening and closing plate 4 is arranged in the sliding groove 11. The opening and closing plate 4 has a clearance fit with the sliding groove 11. The opening and closing plate 4 slides along the sliding groove 11.

[0092] In this way, the opening and closing plate 4 is arranged in the sliding groove 11 and can slide along the sliding groove 11, so as to realize the sliding connection between the housing 1 and the opening and closing plate 4.

[0093] In a schematic embodiment, as Figure 3 , 6 shown, the powder dropping opening and closing mechanism 100 further includes a bottom plate 6. The bottom plate 6 is configured as a flat plate. A second through hole 61 is provided on the bottom plate 6. The second through hole 61 vertically penetrates the bottom plate 6. The bottom plate 6 is located below the housing 1. The bottom plate 6 covers the downward opening of the chute 11. The bottom plate 6 is connected to the housing 1. The connection between the bottom plate 6 and the housing 1 can be a screw connection. The second through hole 61 on the bottom plate 6 is aligned with the first through hole 12. When the opening and closing plate 4 is in the open position, the powder guiding part 21 of the powder guiding member 2 passes through the first through hole 12 of the housing 1 and the second through hole 61 of the bottom plate 6, and the powder dropping port 212 of the powder guiding member 2 is located on the side of the bottom plate 6 facing away from the opening and closing plate 4.

[0094] In this way, the bottom plate 6 blocks the opening of the chute 11, so that the opening and closing plate 4 cannot be disengaged from the chute 11. At the same time, when the opening and closing plate 4 is in the open position, the powder dropping port 212 is opened to convey coffee powder downward. Since the powder dropping port 212 is located on the side of the bottom plate 6 facing away from the opening and closing plate 4, the coffee powder output downward from the powder dropping port 212 will not enter the chute 11, avoiding the smooth sliding of the opening and closing plate 4 and the dirt of the chute 11 caused by the entry of coffee powder into the chute 11.

[0095] In a schematic embodiment, as Figure 2 shown, the driving assembly 3 includes a rack 33, a gear 32 and a motor 31. The rack 33 is connected to the opening and closing plate 4. The extending direction of the rack 33 is the same as the extending direction of the chute 11 and the sliding direction of the opening and closing plate 4. The rack 33 can be arranged on one side of the opening and closing plate 4 and connected to the opening and closing plate 4. The rack 33 and the opening and closing plate 4 can be an integrally formed structure. The connection between the rack 33 and the opening and closing plate 4 can also be conventional connection methods such as welding, bonding, and screw connection. A straight slit can be provided on the wall surface of the chute 11. The extending direction of the slit is the same as the extending direction of the chute 11. The rack 33 extends out of the chute 11 from the slit. The length of the slit is greater than the length of the chute 11. The rack 33 can slide along the slit.

[0096] The motor 31 can be a DC motor or a stepper motor. The motor 31 is connected to the housing 1. The main shaft of the motor 31 is perpendicular to the extending direction of the rack 33. The gear 32 is sleeved on the main shaft of the motor 31 and meshes with the rack 33.

[0097] The motor 31 drives the gear 32 to rotate, and the gear 32 can drive the rack 33 to move along the extending direction of the slit, thereby driving the opening and closing plate 4 to slide along the chute 11. The motor 31 can adjust the sliding direction of the opening and closing plate 4 by changing the rotation direction of the gear 32.

[0098] In a schematic embodiment, as Figure 2As shown, the powder dropping opening and closing mechanism 100 further includes a first limit switch 7 and a second limit switch 8. Both the first limit switch 7 and the second limit switch 8 are connected to the housing 1. The first limit switch 7 and the second limit switch 8 can be on the same side of the rack 33. The first limit switch 7 and the second limit switch 8 are separated in the extending direction of the rack 33. The motor 31 can be arranged between the first limit switch 7 and the second limit switch 8 to make the powder dropping opening and closing mechanism 100 more compact.

[0099] A limit portion 34 is further provided on the rack 33. The limit portion 34 can be provided on the side wall of the rack 33 close to the first limit switch 7 and the second limit switch 8. The limit portion 34 can be configured as a protrusion. When the opening and closing plate 4 slides to the open position, the limit portion 34 contacts the first limit switch 7 to trigger the first limit switch 7. When the opening and closing plate 4 slides to the closed position, the limit portion 34 contacts the second limit switch 8 to trigger the second limit switch 8. The first limit switch 7 is configured to turn off the motor 31 after being triggered.

[0100] The second limit switch 8 is configured to turn off the motor 31 after being triggered.

[0101] In this way, after the motor 31 drives the gear 32 to rotate and the opening and closing member slides from the closed position to the open position, the limit portion 34 triggers the first limit switch 7 to turn off the motor 31, so that the opening and closing member stops at the open position and the powder dropping port 212 remains open. After the motor 31 drives the gear 32 to rotate and the opening and closing member slides from the open position to the closed position, the limit portion 34 triggers the second limit switch 8 to turn off the motor 31, so that the opening and closing member stops at the closed position and the powder dropping port 212 remains closed.

[0102] In a schematic embodiment, a plurality of limit portions 34 are provided. The plurality of limit portions 34 include a first limit portion 341 and a second limit portion 342. The first limit portion 341 and the second limit portion 342 are spaced apart from each other in the extending direction of the rack 33. The first limit portion 341 is configured to trigger the first limit switch 7 when the opening and closing plate 4 is in the open position. The second limit portion 342 is configured to trigger the second limit switch 8 when the opening and closing plate 4 is in the closed position.

[0103] Using the separated first limit portion 341 and second limit portion 342 to trigger the first limit switch 7 and the second limit switch 8 respectively can provide more space for conveniently arranging the first limit switch 7 and the second limit switch 8 when the stroke of the opening and closing plate 4 is short.

[0104] Embodiment 2

[0105] Embodiment 2 proposes another powder-falling opening and closing mechanism 100a for a coffee machine. The only difference between the powder-falling opening and closing mechanism 100a in Embodiment 2 and the powder-falling opening and closing mechanism 100 in Embodiment 1 lies in the structure and installation method of the driving component. To avoid repetition, only the differences between Embodiment 2 and Embodiment 1 will be introduced below.

[0106] As Figures 7 - 9 shown, the driving component 3a of the powder-falling opening and closing mechanism 100a includes an electromagnetic push rod 31a and a second elastic member 32a. The electromagnetic push rod 31a includes a body 31a and a push rod 312a. The body 31a is connected to the housing 1. The body 31a and the housing 1 can be connected by screws. The body 31a can be arranged on the side of the housing 1 facing away from the opening and closing plate 4. The body 31a is close to the first through hole 12 and the powder guiding member 2 of the housing 1. The push rod 312a is arranged on the side of the body 31a facing away from the powder guiding member 2. One end of the push rod 312a is connected to the body 31a, and the push rod 312a can actively extend from the body 31a to the side of the powder guiding member 2. The extending direction of the push rod 312a is the same as the extending direction of the chute 11, that is, the same as the sliding direction of the opening and closing plate 4. The extending direction of the push rod 312a from the body 31a is parallel to the extending direction of the chute 11, that is, the same as the sliding direction of the opening and closing plate 4.

[0107] A connecting portion 4a is provided on the opening and closing plate 4. The connecting portion 4a can be a vertical flat plate. The connecting portion 4a is perpendicular to the opening and closing plate 4. One plate surface of the connecting portion 4a abuts against the end surface of the end of the push rod 312a facing away from the body 31a. The connecting portion 4a is connected to the end of the push rod 312a facing away from the body 31a.

[0108] An installation portion 1a is further provided on the housing 1. The installation portion 1a is arranged on the side of the electromagnetic push rod 31a facing away from the powder guiding member 2. The connecting portion 4a of the opening and closing plate 4 is located between the electromagnetic push rod 31a and the installation portion 1a. The second elastic member 32a can be a spiral spring. The second elastic member 32a is arranged between the installation portion 1a and the connecting portion 4a. The two ends of the second elastic member 32a respectively abut against the installation portion 1a and the connecting portion 4a. The second elastic member 32a is in a compressed state. The second elastic member 32a applies an elastic force to the connecting portion 4a, and the direction of this elastic force is towards the powder guiding member 2.

[0109] As Figure 8 shown, the electromagnetic push rod 31a is configured to extend the push rod 312a to push the opening and closing plate 4 from the closed position to the open position. As Figure 9 shown, the second elastic member 32a is used to apply an elastic force to the connecting portion 4a in the direction opposite to the extending direction of the push rod 312a to push the opening and closing plate 4 to the closed position after the push rod 312a stops extending.

[0110] As Figure 9As shown, when the push rod 312a of the electromagnetic push rod 31a is in the contracted state, the elastic force exerted by the second elastic member 32a on the connecting portion 4a pushes the opening and closing plate 4 to the closed position, so that the powder falling port 212 remains closed. As Figure 8 shown, when the push rod 312a of the electromagnetic push rod 31a extends outwards, the push rod 312a pushes the connecting portion 4a to push the opening and closing plate 4 from the closed position to the open position, thereby opening the powder falling port 212. When the push rod 312a of the electromagnetic push rod 31a returns to the contracted state where the push rod 312a does not extend out, the elastic force exerted by the second elastic member 32a on the connecting portion 4a pushes the opening and closing plate 4 to the closed position again, so that the powder falling port 212 is closed. This driving assembly 3a is simple and reliable, and can realize the rapid opening and closing of the powder falling port 212.

[0111] Embodiment III

[0112] Embodiment III proposes another coffee machine. The coffee machine in Embodiment III is the same as the coffee machine in Embodiment I in that the powder falling opening and closing mechanism 100 and the filtering assembly 400 are the same. To avoid repetition, the specific structure of the powder falling opening and closing mechanism 100 will not be introduced again below. For the structure of the powder falling opening and closing mechanism 100, please refer to the powder falling opening and closing mechanism 100 in Embodiment I.

[0113] As Figure 10 shown, Figure 10 shows a partial structure of a coffee machine in Embodiment III. The coffee machine includes a powder falling opening and closing mechanism 100, a filtering assembly 400, a water injection device 500, and a machine shell 200a. The machine shell 200a is the skeleton structure of the coffee machine.

[0114] Mounting holes 201a can be provided on the machine shell 200a. The water injection device 500 is arranged at the mounting holes 201a of the machine shell 200a. The water injection device 500 includes a water injection member 501. The water injection member 501 is provided with an annular groove 502. A plurality of water injection ports 503 are provided at the bottom of the annular groove 502. The plurality of water injection ports 503 are evenly distributed at the bottom of the annular groove 502. When the annular groove 502 of the water injection member 501 contains brewing water, the plurality of water injection ports 503 can output the brewing water in the annular groove 502 downwards. A powder falling channel 504 is provided in the middle of the water injection member 501, and the powder falling channel 504 vertically penetrates the water injection member 501.

[0115] The housing 1 of the powder falling opening and closing mechanism 100 is connected to the water injection device 500. The powder falling opening and closing mechanism 100 is arranged above the water injection member 501. The powder falling port 212 of the powder falling opening and closing mechanism 100 is communicated with the powder falling channel 504. The powder falling port 212 conveys coffee powder to the powder falling channel 504.

[0116] The filtering component 400 includes a filtering funnel 401. A brewing chamber 402 is arranged inside the filtering funnel 401. A feed inlet 403 is arranged at the top of the brewing chamber 402, and a liquid outlet 404 is arranged at the bottom of the brewing chamber 402. The feed inlet 403 of the filtering funnel 401 is arranged below the water injection port 503 and the powder feeding channel 504. The coffee powder output from the powder dropping port 212 can enter the feed inlet 403 along the powder feeding channel 504 and fall into the brewing chamber 402, and the brewing water output from the water injection port 503 can be sprinkled on the feed inlet 403 and enter the brewing chamber 402.

[0117] The powder dropping opening and closing mechanism 100 is arranged above the water injection device 500, and the powder dropping opening and closing mechanism 100 and the water injection device 500 are arranged in a stacked manner, which can reduce the occupation of the installation space and make the internal layout of the coffee machine more compact.

[0118] Embodiment 4

[0119] As Figures 11 - 15 shown, Figures 11 - 15 The structure of a coffee machine 100b in this embodiment is shown. The coffee machine 100b includes a machine body 101b, a filtering component 2b and a moving mechanism 3b.

[0120] The machine body 101b is the main structure of the coffee machine 100b. A powder dropping port 511b and a water injection port 411b are arranged on the machine body 101b. The powder dropping port 511b is used for outputting coffee powder. The water injection port 411b is used for outputting brewing water. The brewing water can be hot water or high-temperature steam. Both the powder dropping port 511b and the water injection port 411b are arranged at a relatively high position on the machine body 101b. Both the powder dropping port 511b and the water injection port 411b face downward. The powder dropping port 511b and the water injection port 411b are separated from each other.

[0121] The filtering component 2b includes a filtering funnel 21b. A brewing chamber 211b is arranged inside the filtering funnel 21b. A feed inlet 212b is arranged at the top of the brewing chamber 211b. The feed inlet 212b faces upward. A liquid outlet 213b is arranged at the bottom of the brewing chamber 211b, and the feed inlet 212b is larger than the liquid outlet 213b. The height of the filtering component 2b is less than the heights of the water injection port 411b and the powder dropping port 511b.

[0122] The moving mechanism 3b is connected to the fuselage 101b and also connected to the filtering component 2b. The moving mechanism 3b can drive the filtering component 2b to move relative to the fuselage 101b. The moving mechanism 3b can drive the filtering component 2b to translate horizontally. The moving mechanism 3b can drive the filtering component 2b to move to the powder receiving position. When the filtering component 2b is in the powder receiving position, the feed inlet 212b of the filtering component 2b is vertically aligned with the powder dropping port 511b on the fuselage 101b. The moving mechanism 3b can also drive the filtering component 2b to move to the water receiving position. When the filtering component 2b is in the water receiving position, the feed inlet 212b of the filtering component 2b is vertically aligned with the water injection port 411b on the fuselage 101b, and when the filtering component 2b is in the water receiving position, the feed inlet 212b of the filtering component 2b is vertically offset from the powder dropping port 511b of the fuselage 101b, that is, the feed inlet 212b is not directly above the powder dropping port 511b. The moving mechanism 3b is configured to be able to drive the filtering component 2b to move between the powder receiving position and the water receiving position. For example, the moving mechanism 3b can drive the filtering component 2b to move from the powder receiving position to the water receiving position, and the moving mechanism 3b can also drive the filtering component 2b to move from the water receiving position to the powder receiving position.

[0123] The fuselage 101b includes a casing 1b, and the casing 1b is the frame structure of the coffee machine 100b. The casing 1b includes a column 11b and a cantilever 12b. The column 11b can be constructed as a cylindrical hollow shell structure, and the column 11b extends vertically. The cantilever 12b is constructed as a straight strip-shaped hollow shell structure. The cantilever 12b can be constructed as a six-sided hollow shell structure in the shape of a strip. The cantilever 12b extends horizontally. One end of the cantilever 12b is connected to the upper end of the column 11b. The cantilever 12b includes a mounting plate 121b. The mounting plate 121b is located at the bottom of the cantilever 12b. The mounting plate 121b can be constructed as a horizontally arranged flat plate. Mounting holes 124b are also provided on the mounting plate 121b of the casing 1b.

[0124] The body 101b further includes a powder-falling opening / closing mechanism 5b and a powder supply assembly 7b. The powder supply assembly 7b is arranged on the column 11b of the housing 1b. The powder supply assembly 7b is provided with a powder supply pipe 73b which can output coffee powder. The powder supply pipe 73b extends into the cantilever 12b. The powder supply pipe 73b can be a flexible pipe or a rigid pipe. In this embodiment, the powder supply assembly 7b includes a grinding device 72b and a coffee bean bin 71b. The coffee bean bin 71b is used for accommodating coffee beans. The coffee bean bin 71b is arranged above the grinding device 72b. The outlet of the coffee bean bin 71b is communicated with the inlet of the grinding device 72b. The coffee bean bin 71b conveys coffee beans to the grinding device 72b. The outlet of the grinding device 72b is connected to one end of the powder supply pipe 73b. The grinding device 72b can grind coffee beans into coffee powder and convey it to the powder-falling opening / closing mechanism 5b through the outlet of the powder supply pipe 73b. The position where the outlet of the grinding device 72b is located can be higher than the position where the powder-falling opening / closing mechanism 5b is located. The powder supply assembly 7b can also be a coffee powder bin which contains coffee powder, and the coffee powder in the coffee powder bin is conveyed to the powder-falling opening / closing mechanism 5b through the powder supply pipe 73b.

[0125] The powder-falling opening / closing mechanism 5b can be arranged on the cantilever 12b of the housing 1b. The powder-falling opening / closing mechanism 5b includes a powder guiding member 51b, a housing 52b, a switching plate 53b and a driving assembly 54b. The housing 52b is arranged at the mounting hole 124b of the mounting plate 121b of the housing 1b. The housing 52b is connected to the housing 1b. The connection between the housing 52b and the housing 1b can be a screw connection.

[0126] The powder guiding member 51b is connected to the housing 52b. The powder guiding member 51b is provided with a powder-falling channel 510b. The powder-falling channel 510b vertically penetrates through the powder guiding member 51b. The opening at the bottom end of the powder-falling channel 510b is a powder-falling port 511b. The powder-falling port 511b is used for outputting coffee powder. The powder supply pipe 73b extends from the outlet of the grinding device 72b to the powder guiding member 51b. The grinding device 72b grinds coffee beans into coffee powder and outputs it from the outlet of the grinding device 72b, and the position where the outlet of the grinding device 72b is located is higher than the position where the powder guiding member 51b is located. The end of the powder supply pipe 73b of the powder supply assembly 7b extends into the powder-falling channel 510b, and the coffee powder output from the outlet of the grinding device 72b can slide along the powder supply pipe 73b into the powder-falling channel 510b under the action of gravity, so as to realize the conveyance of coffee powder into the powder-falling channel 510b. After the coffee powder conveyed by the powder supply assembly 7b enters the powder-falling channel 510b, the coffee powder in the powder-falling channel 510b can be output through the opened powder-falling port 511b.

[0127] The opening and closing plate 53b is configured in a plate shape and can be a flat plate. The opening and closing plate 53b is slidably connected to the housing 52b and can slide relative to the housing 52b. The opening and closing plate 53b can slide in a straight line horizontally. The opening and closing plate 53b can slide to the closed position, and when in the closed position, the opening and closing plate 53b is inserted below the powder guiding member 51b and blocks the powder dropping port 511b, and the powder dropping port 511b is in a closed state. The opening and closing plate 53b can slide to the open position, and when in the open position, the opening and closing plate 53b is located on one side of the powder dropping port 511b, the powder dropping port 511b is not blocked by the opening and closing plate 53b, and the powder dropping port 511b is in an open state.

[0128] The driving assembly 54b is connected to the housing 52b and the opening and closing plate 53b. The driving assembly 54b is configured to drive the opening and closing plate 53b to slide between the open position and the closed position. When the filtering assembly 2b is in the powder receiving position, the driving assembly 54b drives the opening and closing plate 53b to move to the open position, and when the filtering assembly 2b is not in the powder receiving position, the driving assembly 54b drives the opening and closing plate 53b to move to the closed position.

[0129] When making coffee with the coffee machine 100b, the moving mechanism 3b first drives the filtering assembly 2b to move to the powder receiving position, and then the driving assembly 54b drives the opening and closing plate 53b to slide to the open position. The opening and closing plate 53b moves away from the powder dropping port 511b, and the powder dropping port 511b can output coffee powder to the brewing chamber 211b of the coffee machine 100b. After the powder dropping port 511b outputs the coffee powder required for brewing a cup of coffee once, the driving assembly 54b then drives the opening and closing plate 53b to slide to the closed position, and the opening and closing plate 53b closes the powder dropping port 511b. The moving mechanism 3b then drives the filtering assembly 2b to move to the water receiving position, and water for brewing is injected into the brewing chamber 211b from the water injection port 411b. Since the powder dropping port 511b is closed, when water for brewing is injected into the brewing chamber 211b from the water injection port 411b to brew the coffee powder, the water vapor generated during the water injection process cannot enter the powder dropping port 511b, and the powder dropping port 511b and the powder supply pipe 73b upstream of the powder dropping port 511b can always remain dry, so that the powder supply pipe 73b can maintain smooth powder dropping and internal cleanliness.

[0130] In this way, when using the coffee machine 100b to brew coffee, the moving mechanism 3b first drives the filtering component 2b to move to the powder receiving position so that the powder dropping port 511b of the machine body 101b is aligned with the feed port 212b of the filtering component 2b. The machine body 101b conveys coffee powder downward through the powder dropping port 511b, and the coffee powder falls into the feed port 212b of the filtering component 2b and enters the brewing chamber 211b. After the machine body 101b has conveyed the coffee powder required for making one cup of coffee, the moving mechanism 3b then drives the filtering component 2b to move to the water receiving position so that the water injection port 411b of the machine body 101b is aligned with the feed port 212b of the filtering component 2b. The machine body 101b then conveys brewing water downward through the water injection port 411b, and the brewing water falls into the feed port 212b of the filtering component 2b and enters the brewing chamber 211b, so that coffee extraction can be completed in the brewing chamber 211b. Also, since the feed port 212b of the filtering component 2b and the powder dropping port 511b of the machine body 101b are vertically offset from each other when the filtering component 2b is in the water receiving position, that is, the feed port 212b is not directly above the powder dropping port 511b, the water vapor generated during the water injection process cannot enter the powder dropping port 511b, and the powder dropping port 511b and the powder supply pipe 73b upstream of the powder dropping port 511b can always remain dry, so that the powder supply pipe 73b can maintain smooth powder dropping and internal cleanliness.

[0131] Meanwhile, before the machine body 101b injects water into the brewing chamber 211b, the moving mechanism 3b can also jolt the coffee powder in the brewing chamber 211b by moving the filtering component 2b back and forth to level the coffee powder, so that the surface of the coffee powder becomes smoother during the back-and-forth movement of the filtering component 2b, and the coffee powder can also be made more compact, playing a certain role in pressing the powder, which is beneficial to improving the quality of coffee brewing.

[0132] In a schematic embodiment, a strip-shaped hole 1211b is provided on the mounting plate 121b. The strip-shaped hole 1211b penetrates through the mounting plate 121b. The cross-section of the strip-shaped hole 1211b is straight. In the present application, the cross-section of the strip-shaped hole 1211b refers to the section of the strip-shaped hole 1211b perpendicular to its depth direction. The mounting plate 121b is located above the filtering component 2b.

[0133] The moving mechanism 3b includes a slider 31b, a bracket 36b, and a driving mechanism 32b. The slider 31b is arranged above the mounting plate 121b, and the slider 31b can be arranged above the mounting hole. The slider 31b can slide along the upward-facing plate surface of the mounting plate 121b. The slider 31b can be configured as a flat plate. The width of the slider 31b is greater than the width of the strip-shaped hole 1211b of the mounting plate 121b. The slider 31b cannot pass through the strip-shaped hole 1211b on the mounting plate 121b. The moving direction of the filtering component 2b is the same as the extending direction of the cross-section of the strip-shaped hole 1211b.

[0134] The bracket 36b is configured as a substantially bar shape. The bracket 36b is passed through the elongated hole 1211b of the mounting plate 121b. One end of the bracket 36b is connected to the slider 31b, and the other end of the bracket 36b is connected to the filter assembly 2b. The bracket 36b supports the filter assembly 2b. A plug-in portion may be provided at the end of the bracket 36b facing away from the slider 31b, and the plug-in portion may be configured as a horizontal fork-like structure. The plug-in portion can be inserted into the bottom end of the filter funnel 21b of the filter assembly 2b. The connection between the plug-in portion and the filter assembly 2b is a detachable plug-in connection, which facilitates the removal of the filter assembly 2b from the bracket 36b for cleaning and also facilitates the installation of the filter assembly 2b onto the bracket 36b.

[0135] The drive mechanism 32b is disposed within the cantilever 12b. The drive mechanism 32b is used to drive the slider 31b to slide along the extension direction of the cross-section of the elongated hole 1211b of the mounting plate 121b on the surface of the mounting plate 121b. When the drive mechanism 32b drives the slider 31b to slide along the extension direction of the cross-section of the elongated hole 1211b, it can drive the filter assembly 2b to move through the bracket 36b, thereby realizing the movement of the filter assembly 2b between the water receiving position and the powder receiving position.

[0136] In a schematic embodiment, as Figure 16 shown, the drive mechanism 32b includes a first rack 321b, a first gear 322b, and a first motor 323b. The first rack 321b is connected to the slider 31b. The first rack 321b and the slider 31b may be an integrally formed structure. The first rack 321b may be provided on one side of the slider 31b. The extension direction of the first rack 321b is parallel to the extension direction of the cross-section of the elongated hole 1211b. The teeth on the first rack 321b may be provided on the upward side of the first rack 321b. The first gear 322b meshes with the first rack 321b.

[0137] The first motor 323b is mounted on the cantilever 12b. The first motor 323b may be a DC first motor 323b and also a stepper first motor 323b. The first motor 323b is connected to the housing 1b. The main shaft of the first motor 323b is perpendicular to the extension direction of the first rack 321b. The first gear 322b is sleeved on the main shaft of the first motor 323b and meshes with the first rack 321b.

[0138] The first motor 323b drives the first gear 322b to rotate, and the first gear 322b can drive the first rack 321b to slide along the extension direction of the cross-section of the elongated hole 1211b, thereby driving the bracket 36b and the filter assembly 2b to move. The first motor 323b can adjust the moving direction of the filter assembly 2b by changing the rotation direction of the first gear 322b.

[0139] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by terms such as "upper", "lower", "one side", "the other side", "one end", "the other end", "edge", "opposite", "four corners", "periphery", "the structure of the character 'kou'" is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the structure referred to has a specific orientation, is constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0140] In the description of the embodiments of the present utility model, unless otherwise clearly specified and limited, the terms "connection", "direct connection", "indirect connection", "fixed connection", "installation", "assembly" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; the terms "installation", "connection", "fixed connection" may be directly connected, or indirectly connected through an intermediate medium, and may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0141] Although the disclosed embodiments of the present utility model are as above, the content described is only the embodiments adopted for the convenience of understanding the present utility model, and is not used to limit the present utility model. Any person skilled in the art within the scope of the present utility model can make any modifications and changes in the form and details of the implementation without departing from the spirit and scope disclosed by the present utility model. However, the scope of patent protection of the present utility model shall still be defined by the appended claims.

Claims

1. A coffee machine powder dropping opening and closing mechanism, characterized in that: include: A powder guide member is provided with a powder outlet for discharging coffee powder; A shell connected to the powder guide member; An opening and closing plate, slidably connected to the shell; as well as, A driving assembly connected to the opening and closing plate, and used for driving the opening and closing plate to move between an open position for opening the powder dropping opening and a closed position for blocking the powder dropping opening; The powder dropping opening and closing mechanism further comprises an elastic connection component elastically connecting the powder guide member to the housing; The elastic connection component applies elastic force to the powder guide member so that the powder drop opening of the powder guide member is closely attached to the opening and closing plate when the opening and closing plate is in the closed position; The elastic connection assembly and the opening and closing plate are respectively arranged on opposite sides of the housing; The housing is provided with a first through hole, the powder guide member is passed through the first through hole, and the powder drop port is provided at one end of the powder guide member close to the opening and closing plate; Among them, a first inclined surface is provided at the end of the opening and closing plate, and a second inclined surface is provided at the end of the powder guide member close to the opening and closing plate. When the opening and closing plate slides from the open position to the closed position, the first inclined surface squeezes the second inclined surface so that the powder guide member moves in a direction opposite to the elastic force it is subjected to.

2. The powder falling opening and closing mechanism according to claim 1 is characterized in that: The housing is provided with a slide groove, the first through hole penetrates the wall surface of the slide groove, and the opening and closing plate slides along the slide groove.

3. The powder falling opening and closing mechanism according to claim 2 is characterized in that: It also includes a bottom plate, provided with a second through hole aligned with the first through hole, and the bottom plate covers the opening of the slide slot; When the opening and closing plate is in the open position, the powder guiding member passes through the first through hole and the second through hole, and the powder dropping port is located on a side of the bottom plate facing away from the opening and closing plate.

4. The powder falling opening and closing mechanism according to any one of claims 1 to 3, characterized in that: The driving assembly includes a rack connected to the opening and closing plate, a gear meshing with the rack, and a motor for driving the gear to rotate; Wherein, the extending direction of the rack is parallel to the sliding direction of the opening and closing plate.

5. The powder falling opening and closing mechanism according to claim 4 is characterized in that: The powder dropping opening and closing mechanism further includes a first limit switch and a second limit switch, wherein the first limit switch and the second limit switch are both configured to turn off the motor after being triggered; A limit portion is provided on the rack, and the limit portion is configured to trigger the first limit switch when the opening and closing plate is in the open position, and to trigger the second limit switch when the opening and closing plate is in the closed position.

6. The powder falling opening and closing mechanism according to claim 5, characterized in that: The plurality of limit portions are provided, and the plurality of limit portions include a first limit portion and a second limit portion spaced apart from the first limit portion; The first limit portion is configured to trigger a first limit switch when the opening and closing plate is in an open position, and the second limit portion is configured to trigger a second limit switch when the opening and closing plate is in a closed position.

7. The powder falling opening and closing mechanism according to any one of claims 1 to 3, characterized in that: The opening and closing plate is provided with a connecting portion; The driving assembly includes an electromagnetic push rod and a second elastic member; The electromagnetic push rod comprises a body connected to the housing and a push rod capable of extending out of the body, the direction in which the push rod extends out of the body is parallel to the sliding direction of the opening and closing plate, and the push rod is connected to the connecting portion; Wherein, the electromagnetic push rod is configured to extend the push rod to push the opening and closing plate from the closed position to the open position, and the second elastic member is used to apply an elastic force to the connecting part in the opposite direction of the extension direction of the push rod to push the opening and closing plate to the closed position after the push rod is no longer extended.

8. A coffee machine, characterized in that: include: A casing provided with a water injection port and a powder dropping opening and closing mechanism as claimed in any one of claims 1 to 7; Wherein, the shell is connected to the casing, and the water injection port is used to output brewing water.

9. A coffee machine, characterized in that: include: A casing, a water injection device connected to the casing, and a powder dropping opening and closing mechanism according to any one of claims 1 to 7; The powder falling opening and closing mechanism is arranged above the water injection device, and the housing is connected to the water injection device. The water injection device is provided with a water injection port, and the water injection port is used to output brewing water; The water injection device is provided with a powder dropping channel, and the powder dropping port is connected with the powder dropping channel.

10. A coffee machine, characterized in that: The coffee machine comprises: A fuselage, comprising the powder dropping opening and closing mechanism according to any one of claims 1 to 7, wherein the fuselage is also provided with a water injection port; A filter assembly is located below the powder drop port and the water injection port, and is provided with a brewing cavity and a feed port arranged at the top of the brewing cavity; A moving mechanism connected to the body and the filter assembly; Wherein, the moving mechanism is used to drive the filter assembly to move between a powder receiving position where the feed inlet is aligned with the powder falling port and a water receiving position where the filter assembly is aligned with the water injection port, and when the filter assembly is in the water receiving position, the feed inlet is not located directly below the powder falling port; when the filter assembly is in the powder receiving position, the driving assembly drives the opening and closing plate to move to the open position, and when the filter assembly is not in the powder receiving position, the driving assembly drives the opening and closing plate to move to the closed position.

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