Bean grinding device and beverage dispenser

Abstract

The utility model provides a bean grinding device and a beverage dispenser, the bean grinding device comprises a bean bin mechanism, the bean bin mechanism is provided with a first feed inlet, and the bean bin mechanism is used for receiving beans; the bin door mechanism is arranged on one side of the bean bin mechanism in the direction that the first feeding opening penetrates through the bean bin mechanism; the bin door mechanism comprises a rotating seat, a linkage assembly and a plurality of door bodies. The multiple door bodies are arranged corresponding to the first feeding port and connected with the rotating seat through a linkage assembly so as to control the first feeding port to be closed or opened; the driving mechanism is connected with the rotating seat, and the driving mechanism is used for driving the rotating seat to rotate so as to close or open the first feeding opening; the bean grinding mechanism is arranged on the side, away from the bean bin mechanism, of the bin door mechanism, and the bean grinding mechanism is used for receiving the beans from the first feeding opening and processing the beans into powder. In this way, when the multiple door bodies synchronously rotate to be attached to each other, the first feeding opening can be closed, and the probability that beans contained in the bean bin mechanism are affected with damp can be reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electric appliances, and in particular to a bean grinding device and a beverage machine. BACKGROUND

[0002] In a full-automatic bean grinding coffee machine, a bean bin is in communication with a bean grinding mechanism, and the bean grinding mechanism is in communication with an extraction mechanism. Coffee beans in the bean bin can enter the bean grinding mechanism, and the bean grinding mechanism can grind the coffee beans into coffee powder, which can enter the extraction mechanism for coffee extraction. Water vapor is generated during the coffee extraction process. If the water vapor enters the bean bin through the channel between the bean grinding mechanism and the extraction mechanism, and the channel between the bean grinding mechanism and the bean bin, the coffee beans in the bean bin will be wet, which will affect the storage of the coffee beans and the taste of the coffee. Therefore, how to prevent water vapor from entering the bean bin during coffee extraction is still a problem to be solved in the related field. CONTENT OF THE UTILITY MODEL

[0003] In view of the above, it is necessary to provide a bean grinding device and a beverage machine to solve the above-mentioned defects.

[0004] In a first aspect, an embodiment of the present application provides a bean grinding device, comprising: a bean bin mechanism, a first feeding port is formed on the bean bin mechanism, and the bean bin mechanism is used for receiving bean material; a bin door mechanism is arranged on one side of the bean bin mechanism in the direction in which the first feeding port penetrates the bean bin mechanism; the bin door mechanism comprises a rotating seat, a linkage assembly and a plurality of door bodies; the plurality of door bodies are arranged correspondingly to the first feeding port, and the plurality of door bodies are connected to the rotating seat through the linkage assembly to control the first feeding port to be closed or opened; a driving mechanism is connected to the rotating seat, and the driving mechanism is used for driving the rotating seat to rotate to close or open the first feeding port; a bean grinding mechanism is arranged on the side of the bin door mechanism away from the bean bin mechanism, and the bean grinding mechanism is used for receiving the bean material from the first feeding port and processing the bean material into powder.

[0005] Optionally, an arc-shaped rack is arranged on the peripheral wall of the rotating seat, and the driving mechanism comprises: a first knob, which is arranged on the side of the bean bin mechanism away from the bin door mechanism, and the first knob is rotatably arranged on the bean bin mechanism; a first gear, which is connected to the first knob and engaged with the arc-shaped rack.

[0006] Optionally, the rotating seat is rotatably arranged on one side of the bean bin mechanism, and a first passing port is formed on the rotating seat and arranged correspondingly to the first feeding port, and the first passing port is used for passing the bean material.

[0007] Optionally, each door body comprises a first connecting end and a second connecting end, the first connecting end and the second connecting end are arranged in a spaced manner, the linkage assembly comprises: a positioning ring, the positioning ring is connected with the bean bin mechanism, a second through hole is formed in the middle of the positioning ring, the second through hole is arranged in correspondence with the first feeding port and the first through hole; the first connecting end of each door body is rotatably connected to the positioning ring; a plurality of connecting arms are arranged around the positioning ring, each connecting arm is rotatably connected to the rotating seat and rotatably connected to the corresponding second connecting end; on each connecting arm, the position connected with the rotating seat and the position connected with the door body are arranged in a spaced manner.

[0008] Optionally, a first receiving groove is formed in the rotating seat, the first receiving groove is in communication with the first through hole, the plurality of door bodies are accommodated in the first receiving groove, and the positioning ring and the plurality of connecting arms are accommodated in the first receiving groove, the positioning ring and the plurality of connecting arms are located on the side of the plurality of door bodies away from the bean bin mechanism.

[0009] Optionally, each door body comprises an abutting end, a first connecting end, a second connecting end, a first abutting wall and a second abutting wall, the abutting ends of the plurality of door bodies are used to abut each other to close the first feeding port.

[0010] The first connecting end, the second connecting end and the abutting end are arranged in a spaced manner, the first abutting wall is located between the first connecting end and the abutting end, and the second abutting wall is located between the second connecting end and the abutting end; among the first abutting wall and the second abutting wall, one is a convex arc surface and the other is a concave arc surface; when the abutting ends of the plurality of door bodies abut, each first abutting wall is used to abut with the second abutting wall of the adjacent door body.

[0011] Optionally, the bin door mechanism further comprises: a bin door mounting seat, the bin door mounting seat is connected with the bean bin mechanism, an installation groove is formed in the side of the bin door mounting seat facing the bean bin mechanism, the rotating seat is at least partially accommodated in the installation groove, and the driving mechanism is partially accommodated in the installation groove; a third through hole is formed in the bin door mounting seat, the third through hole is arranged in correspondence with the first feeding port, the third through hole is in communication with the installation groove, and the third through hole is used for passing the bean material.

[0012] Optionally, the bean bin mechanism comprises: a feeding hopper configured to receive the beans, a first feeding opening is formed on a side of the feeding hopper facing the bean grinding mechanism; a first mounting seat is arranged through the feeding hopper, and the first mounting seat is configured to partially accommodate the driving mechanism; a first protruding ring is arranged on the side of the feeding hopper facing the bean grinding mechanism, and the first protruding ring is arranged around the first feeding opening, the rotating seat is at least partially accommodated in the first protruding ring and rotationally fitted with the inner wall of the first protruding ring; a second protruding ring is arranged on the side of the feeding hopper facing the bean grinding mechanism, and the second protruding ring is arranged around the first feeding opening, the second protruding ring is located on the inner side of the first protruding ring, and the second protruding ring is fitted with the part of the feeding hopper where the first feeding opening is formed to form a clamping space, and a first sealing ring is arranged in the clamping space, and the first sealing ring is configured to abut against the plurality of door bodies.

[0013] Optionally, a second feeding opening is formed on a side of the bean grinding mechanism facing the bean bin mechanism, the second feeding opening is arranged corresponding to the first feeding opening, and the bean grinding mechanism is configured to process the beans entering the bean grinding mechanism through the second feeding opening; a receiving ring is arranged on the bean grinding device, the receiving ring is in communication with the second feeding opening, the receiving ring receives the rotating seat and rotationally fits with the rotating seat.

[0014] In a second aspect, the embodiments of the present application provide a beverage machine, comprising: an extraction device configured to receive and extract the powder; and the bean grinding device according to any one of the preceding embodiments, the bean grinding device is connected with the extraction device, and the bean grinding device is configured to process the beans into the powder and output the powder to the extraction device.

[0015] Through the bean grinding device and the beverage machine provided by the present application, when the driving mechanism drives the rotating seat to rotate, the rotating seat can drive the linkage assembly to move, so that the plurality of door bodies are synchronously rotated under the transmission action of the linkage assembly, thereby being close to each other and abutting to block the first feeding opening. The plurality of abutting door bodies can close the first feeding opening to block the water vapor from passing through the first feeding opening, thereby reducing the probability of the beans received in the bean bin mechanism being damp, improving the taste of the liquid produced by the beverage machine through the beans, and increasing the storage time of the beans in the bean bin mechanism. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a schematic view of the beverage machine in the embodiments of the present application.

[0017] Figure 2 is a structural exploded view of the bean grinding device in the embodiments of the present application.

[0018] Figure 3 is a structural exploded view of the bin door mechanism and the driving mechanism in the embodiments of the present application.

[0019] Figure 4 is a sectional view of the bean grinding device when the first feeding opening is closed in the embodiments of the present application.

[0020] Figure 5 is a sectional view of the bean grinder device when the first feeding port is opened in an embodiment of the present application.

[0021] Figure 6 is a schematic diagram of the connection structure of the bean bin mechanism and the bin door mechanism in an embodiment of the present application.

[0022] Figure 7 is a schematic diagram of the partial structure of the bean grinder device when the first feeding port is closed in an embodiment of the present application.

[0023] Figure 8 is a schematic diagram of the partial structure of the bean grinder device when the first feeding port is opened in an embodiment of the present application.

[0024] Figure 9 is a structure exploded view of the door body and the linkage assembly in an embodiment of the present application.

[0025] Figure 10 is a schematic diagram of the structure of the bean bin mechanism and the bin door mechanism in an embodiment of the present application.

[0026] Main element symbol explanation:

[0027] 100, beverage machine; 101, bean grinder device; 102, extraction device; 10, bean bin mechanism; 11, feeding hopper; 111, first feeding port; 112, feeding groove; 113, connecting seat; 114, first positioning cylinder; 115, second positioning cylinder; 12, limiting plate; 13, first mounting seat; 14, first protruding ring; 15, second protruding ring; 151, clamping space; 152, first sealing ring; 16, second mounting seat; 20, bin door mechanism; 21, rotating seat; 211, first passing port; 212, arc-shaped rack; 213, first sub-seat; 2131, first receiving groove; 214, second sub-seat; 2141, second receiving groove; 22, linkage assembly; 221, positioning ring; 2211, second passing port; 2212, positioning column; 2213, first pivot; 222, connecting arm; 2221, second pivot; 2222, third pivot; 23, door body; 231, abutting end; 232, first connecting end; 233, second connecting end; 234, first abutting wall; 235, second abutting wall; 24, bin door mounting seat; 241, mounting groove; 242, third passing port; 243, boss; 30, driving mechanism; 31, first knob piece; 32, first gear piece; 40, bean grinding mechanism; 41, adjusting gear; 42, second feeding port; 43, receiving ring; 50, adjusting mechanism; 51, second knob piece; 52, second gear piece; 60, cover plate; 61, second sealing ring. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be clearly and completely described with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application but not all the embodiments of the present application.

[0029] In the present application, a plurality refers to two or more. In addition, it should be understood that in the description of the present application, the terms "first", "second", and the like are used only to distinguish the described purposes, and cannot be understood as indicating or implying relative importance, nor can it be understood as indicating or implying order.

[0030] In the description of the embodiments of the present application, the terms "exemplary" or "for example" are used to represent an example, illustration or description. Any embodiment or design scheme described as "exemplary" or "for example" in the embodiments of the present application should not be interpreted as more preferred or more advantageous than other embodiments or design schemes. Rather, the terms "exemplary" or "for example" are intended to present the relevant concept in a specific manner.

[0031] Please refer to Figure 1 , Figure 1 An embodiment of the present application provides a beverage machine 100.

[0032] In the embodiments of the present application, the beverage machine 100 can include a bean grinding device 101 and an extraction device 102. The bean grinding device 101 can be connected and communicated with the extraction device 102. The bean grinding device 101 can receive bean material and grind the bean material into powder material, and then output the powder material to the extraction device 102. The extraction device 102 can extract the received powder material and generate liquid. A user can receive the liquid from a liquid outlet (not shown in the figure) of the extraction device 102.

[0033] In the embodiments of the present application, the type of the bean material is not specifically limited. For example, the bean material can be, but is not limited to, coffee beans, soybeans, etc.

[0034] For example, the bean material can be coffee beans, and the powder material can be coffee powder obtained by grinding the coffee beans. The beverage machine 100 can be a coffee machine, and the extraction device 102 of the beverage machine 100 can extract the powder material and obtain coffee liquid.

[0035] It can be understood that the principle of the extraction device 102 extracting the powder material to generate liquid can be the same as or similar to the general principle of the coffee machine in the related art extracting coffee powder to generate coffee liquid, which will not be described here.

[0036] In some embodiments, the beverage machine 100 can further include a housing (not shown in the figure), and the bean grinding device 101 and the extraction device 102 can be fixedly connected with the housing and at least partially located in the housing.

[0037] Please refer to Figure 2 and Figure 3 In embodiments of the present application, the height direction of the bean grinding device 101 can be defined as the vertical direction. For example, the vertical direction can be the Z direction and the opposite direction thereof as shown in the drawings. Figure 2 and Figure 3 .

[0038] In some embodiments, the bean grinding device 101 can include a bean bin mechanism 10, a bin door mechanism 20, a driving mechanism 30, and a bean grinding mechanism 40. Among them, the bean bin mechanism 10, the bin door mechanism 20, and the bean grinding mechanism 40 can be arranged in the vertical direction according to the direction from top to bottom, that is, the bean bin mechanism 10 and the bean grinding mechanism 40 are respectively located on both sides of the bin door mechanism 20 in the vertical direction.

[0039] The bean bin mechanism 10 can receive and store bean materials. The bean bin mechanism 10 can be provided with a first feeding port 111, which penetrates the bean bin mechanism 10 in the vertical direction. The first feeding port 111 can be used for the bean materials to pass through. The bean materials passing through the first feeding port 111 can enter the bin door mechanism 20 and then enter the bean grinding mechanism 40 through the bin door mechanism 20. The bean grinding mechanism 40 can grind the bean materials entering the bean grinding mechanism 40, thereby producing powder materials. The bean grinding mechanism 40 can be connected and communicated with the extraction device 102, and the bean grinding mechanism 40 can output the produced powder materials to the extraction device 102.

[0040] Please refer to Figure 4 and Figure 5 , the bin door mechanism 20 can include a rotating seat 21, a linkage assembly 22, and a plurality of door bodies 23. The rotating seat 21 can rotate relative to the bean bin mechanism 10. The rotating seat 21 is provided with a first passing port 211, which penetrates the rotating seat 21 in the vertical direction, and the first passing port 211 is arranged corresponding to the first feeding port 111. The linkage assembly 22 can be arranged on the side of the rotating seat 21 facing the bean bin mechanism 10, and the plurality of door bodies 23 can be arranged on the side of the rotating seat 21 facing the bean bin mechanism 10. The plurality of door bodies 23 are located between the first feeding port 111 and the first passing port 211, and are arranged corresponding to the first feeding port 111 and the first passing port 211 in the vertical direction. The plurality of door bodies 23 can be arranged in a direction around the rotation center axis of the rotating seat 21. The plurality of door bodies 23 are connected with the linkage assembly 22, and are rotatably connected with the rotating seat 21 through the linkage assembly 22. When the rotating seat 21 rotates relative to the bean bin mechanism 10, the linkage assembly 22 can move synchronously, thereby causing the plurality of door bodies 23 to rotate synchronously, and the rotation center axis of each door body 23 is parallel to the rotation center axis of the rotating seat 21. Each door body 23 includes an abutting end 231. When the plurality of door bodies 23 rotate synchronously, the plurality of abutting ends 231 can approach or move away from each other; for example Figure 4As shown, when the plurality of abutting ends 231 are close to each other and abut against each other, each door body 23 is attached to the adjacent door body 23, and the abutting ends 231 of the plurality of door bodies 23 abut against each other, thereby achieving the shielding of the first feeding port 111; as shown, Figure 5 As shown, when the plurality of abutting ends 231 are away from each other, the plurality of door bodies 23 unshield the first feeding port 111, so that the first feeding port 111 is communicated with the first passing port 211.

[0041] The driving mechanism 30 is rotatably connected to the bean bin mechanism 10. The driving mechanism 30 can be connected with the rotating seat 21. The staff can manually operate the driving mechanism 30 to make the driving mechanism 30 rotate; the driving mechanism 30 can drive the rotating seat 21 to rotate synchronously when the driving mechanism 30 rotates.

[0042] It can be understood that the rotation of the rotating seat 21 can drive the plurality of door bodies 23 to move close to or away from each other, so as to shield or open the first feeding port 111, and achieve the opening or closing of the first feeding port 111.

[0043] When the first feeding port 111 is opened, the bean material in the bean bin mechanism 10 can pass through the first feeding port 111, the space surrounded by the plurality of door bodies 23, and the first passing port 211, and finally enter the bean grinding mechanism 40. The bean grinding mechanism 40 can grind the bean material entering the bean grinding mechanism 40 into powder, and transmit the powder to the extraction device 102. When the extraction device 102 extracts the powder, the plurality of door bodies 23 can rotate to close the first feeding port 111, thereby blocking the water vapor generated in the process of the extraction device 102 extracting the powder, reducing the transmission of the water vapor to the bean bin mechanism 10 through the first feeding port 111, increasing the probability of the bean bin mechanism 10, reducing the humidity of the bean material in the bean bin, and increasing the storage time of the bean material and improving the taste of the liquid produced by the extraction device 102.

[0044] It can be understood that the bottom of the bean bin mechanism 10 is the part close to the bean grinding mechanism 40, and the top is the part away from the bean grinding mechanism 40. Similarly, the bottom of the bin door mechanism 20 is the part close to the bean grinding mechanism 40, and the top is the part away from the bean grinding mechanism 40.

[0045] In some embodiments, the side of the rotating seat 21 facing the bean bin mechanism 10 is provided with a first accommodation groove 2131. The linkage assembly 22 and the plurality of door bodies 23 are accommodated in the first accommodation groove 2131. The first accommodation groove 2131 is communicated with the first passing port 211. When the first feeding port 111 is opened, the first accommodation groove 2131 can be communicated with the first feeding port 111 to realize the communication between the first feeding port 111 and the first passing port 211.

[0046] Please refer to Figure 6In some embodiments, the bean bin mechanism 10 can include a feeding hopper 11, a limiting plate 12, a first mounting seat 13, a first convex ring 14 and a second convex ring 15. The feeding hopper 11 is provided with a feeding groove 112 which can accommodate bean materials. The feeding hopper 11 is provided with an opening at the top, and the opening of the feeding hopper 11 is communicated with the feeding groove 112. The bottom wall of the feeding groove 112 is correspondingly arranged at the opening of the feeding hopper 11. The bottom wall of the feeding groove 112 is provided with a first feeding port 111. In the vertical direction, the height of the position where the first feeding port 111 is arranged on the bottom wall of the feeding groove 112 is lower than the height of the position where the edge of the bottom wall of the feeding groove 112 is arranged. In the direction of the edge of the feeding groove 112 towards the first feeding port 111, the bottom wall of the feeding groove 112 is inclinedly arranged, and the height of the position where the bottom wall of the feeding groove 112 is close to the first feeding port 111 is lower than the height of the position where the bottom wall of the feeding groove 112 is away from the first feeding port 111. In this way, the first feeding port 111 is arranged at the bottom end of the feeding hopper 11.

[0047] The circumferential wall of the feeding groove 112 is fixedly connected with a connecting seat 113 which is arranged in the feeding groove 112. In the vertical direction, the connecting seat 113 is spaced apart from the bottom wall of the feeding groove 112. The limiting plate 12 is detachably connected to the connecting seat 113. The limiting plate 12 arranged on the connecting seat 113 is arranged in the feeding groove 112 and corresponds to the first feeding port 111. The first projection (not shown in the figure) of the limiting plate 12 in the vertical direction can coincide with the second projection (not shown in the figure) of the first feeding port 111 in the vertical direction, and the area of the first projection is greater than the area of the second projection. The spacing between the limiting plate 12 and the bottom wall of the feeding groove 112 at the edge of the first feeding port 111 in the vertical direction can be greater than the length, width or thickness of the bean materials, and can be less than twice the length, width or thickness of the bean materials.

[0048] The first mounting seat 13 penetrates the feeding hopper 11 in the vertical direction, and the two ends of the first mounting seat 13 are respectively arranged in the feeding groove 112 and at the side of the feeding hopper 11 towards the bean grinding mechanism 40. The first mounting seat 13 is hollow. The driving mechanism 30 partially penetrates the first mounting seat 13, and the top and bottom of the driving mechanism 30 in the vertical direction both protrude out of the first mounting seat 13. The bottom of the driving mechanism 30 can be connected with the rotating seat 21. The inner wall of the first mounting seat 13 can be rotationally matched with the driving mechanism 30, so that the driving mechanism 30 can rotate relative to the bean bin mechanism 10.

[0049] The first convex ring 14 and the second convex ring 15 are fixedly connected to the bottom of the feed hopper 11 and extend in the vertical direction towards the bean grinding mechanism 40. The second convex ring 15 is arranged around the first feed port 111, and the third projection (not shown in the figure) of the second convex ring 15 in the vertical direction coincides with the second projection. The first convex ring 14 is arranged around the second convex ring 15, and the second convex ring 15 is spaced apart from the first convex ring 14. The fourth projection (not shown in the figure) of the first convex ring 14 in the vertical direction coincides with the third projection. The first convex ring 14 can be arranged on the side of the rotating seat 21 facing the bean bin mechanism 10, and the inner wall of the first convex ring 14 can be rotationally connected with the rotating seat 21, so that the rotating seat 21 can rotate relative to the bean bin mechanism 10. The second convex ring 15 cooperates with the part of the bottom of the feed hopper 11 close to the first feed port 111 to form an annular clamping space 151. The first sealing ring 152 is accommodated in the clamping space 151, and the side of the first sealing ring 152 facing the bean grinding mechanism 40 can abut against the plurality of door bodies 23.

[0050] In the embodiments of the present application, the fixed manner when fixedly connected and fixedly installed is not specifically limited. For example, the fixed manner can include, but is not limited to, bolt fixing, adhesive fixing, buckle fixing, welding fixing, and integral forming fixing, etc.

[0051] In the embodiments of the present application, the connection manner when detachably connected is not specifically limited. For example, the connection manner when detachably connected can include, but is not limited to, buckle connection, threaded connection, and magnetic attraction connection, etc.

[0052] It can be understood that the spacing of the limiting plate 12 and the bottom wall in the feed groove 112 at the edge of the first feed port 111 in the vertical direction can block the beans stacked in the feed groove 112, so that the beans located away from the bottom wall of the feed groove 112 cannot approach and pass through the first feed port 111, limiting the number of beans passing through the first feed port 111; at the same time, it can also block other foreign matters except beans from approaching and passing through the first feed port 111. In this way, the probability of bean blockage in the first feed port 111 can be reduced, and the probability of foreign matters entering the bean grinding mechanism 40 through the first feed port 111 can be reduced, the stability of the beverage machine 100 during operation can be improved, the service life of the beverage machine 100 can be increased, and by arranging the limiting plate 12, the user's fingers can be effectively prevented from being misoperated into the bean grinding mechanism 40, and accidents can be prevented.

[0053] It can be understood that, as Figure 4As shown, when the abutting ends 231 of the plurality of door bodies 23 abut, causing the first feed port 111 to close, the first sealing ring 152 can seal the gap between each door body 23 and the bean bin mechanism 10. In this way, when the first feed port 111 is closed, the plurality of door bodies 23 block the first feed port 111 from the vertical direction, and the first sealing ring 152 seals the gap between the door bodies 23 and the bean bin mechanism 10 from the direction perpendicular to the vertical direction, so as to achieve the insulation of the bean bin mechanism 20. At the same time that the plurality of door bodies 23 block the water vapor from the vertical direction, the first sealing ring 152 can reduce the probability of the water vapor entering the first feed port 111 from the gap between the door bodies 23 and the bean bin mechanism 10, and improve the effect of insulating the water vapor.

[0054] It can be understood that the bean bin mechanism 10 can be detachably connected with the bin door mechanism 20 by covering the cover of the rotating seat 21 with the first protruding ring 14. In this way, the convenience of disassembling the bean bin mechanism 10 and the bin door mechanism 20 for the staff or user can be improved, and the staff or user can conveniently maintain the internal structure of the beverage machine 100.

[0055] It can be understood that when the first protruding ring 14 covers the rotating seat 21, the first protruding ring 14 can be in communication with the first receiving groove 2131.

[0056] It can be understood that when the first protruding ring 14 covers the rotating seat 21, the first protruding ring 14 can be in communication with the first receiving groove 2131. Figure 7 Figure 8 In some embodiments, the circumferential wall of the rotating seat 21 can be fixedly connected with the arc-shaped rack 212. The driving mechanism 30 can include a first knob member 31 and a first gear member 32.

[0057] The first knob member 31 can include a knob portion and a rotating shaft portion. The knob portion of the first knob member 31 can be located in the feed tank 112, and the diameter of the knob portion of the first knob member 31 is greater than the inner diameter of the portion of the first mounting seat 13 located in the feed tank 112. The rotating shaft portion of the first knob member 31 can enter the first mounting seat 13 from the feed tank 112 and be in rotational cooperation with the inner wall of the first mounting seat 13, so that the first knob member 31 can rotate relative to the bean bin mechanism 10.

[0058] ​The first gear member 32 can include a gear portion and a shaft portion. The gear portion of the first gear member 32 can be located on the side of the first mounting seat 13 facing the grinding mechanism 40 and engaged with the arc-shaped rack 212. The diameter of the gear portion of the first gear member 32 is greater than the inner diameter of the portion of the first mounting seat 13 located on the side of the hopper 11 facing the grinding mechanism 40. The shaft portion of the first gear member 32 is coaxial with and fixedly connected to the shaft portion of the first knob member 31 to achieve coaxial and fixed connection of the first knob member 31 and the first gear member 32. The shaft portion of the first gear member 32 can enter the first mounting seat 13 from the side of the hopper 11 facing the grinding mechanism 40 and rotationally fit with the inner wall of the first mounting seat 13, so that the first gear member 32 can rotate relative to the bean bin mechanism 10. The axial directions of the first knob member 31 and the first gear member 32 are coincident with the vertical direction.

[0059] It can be understood that the user can reach into the feed slot 112 and hold and rotate the first knob member 31; rotation of the first knob member 31 can drive rotation of the first gear member 32, so that the arc-shaped rack 212 and the rotating seat 21 rotate synchronously, and rotation of the rotating seat 21 can drive the plurality of door bodies 23 to rotate synchronously, thereby opening or closing the first feed port 111.

[0060] In some embodiments, the bean grinder 101 can further include an adjusting mechanism 50. The adjusting mechanism 50 is connected to the grinding mechanism 40, and the adjusting mechanism 50 can move to drive part of the grinding mechanism 40 to move, thereby adjusting the fineness of the powder produced by the bean grinder 101.

[0061] The adjusting mechanism 50 can include a second knob member 51 and a second gear member 52, and the second knob member 51 and the second gear member 52 can be coaxial and fixedly connected. The bean bin mechanism 10 can further include a second mounting seat 16, which can be arranged in spaced apart relationship with the first mounting seat 13 and can pass through the hopper 11 along the vertical direction. The second mounting seat 16 is hollow. One end of the second knob member 51 is located in the feed slot 112 and is at least partially rotationally connected to the second mounting seat 16, and the other end is located on the side of the hopper 11 facing the grinding mechanism 40 and is at least partially rotationally connected to the second mounting seat 16. The grinding mechanism 40 is rotationally connected with an adjusting gear 41, and rotation of the adjusting gear 41 can adjust the fineness of the powder produced by the grinding mechanism 40. The second gear member 52 can directly engage with the adjusting gear 41 or indirectly engage with the adjusting gear 41 through other gear members. The axial directions of the second knob member 51 and the second gear member 52 are coincident with the vertical direction.

[0062] It can be understood that rotation of the second knob member 51 can drive rotation of the second gear member, so that the adjusting gear 41 of the grinding mechanism 40 rotates, thereby adjusting the fineness of the powder produced by the grinding mechanism 40.

[0063] In the embodiments of the present application, the structure of the adjusting mechanism 50 can be the same as or similar to that of the driving mechanism 30, which will not be described herein again.

[0064] In the embodiments of the present application, the structure of the second mounting base 16 and the positional relationship between the second mounting base 16 and the feed hopper 11 can be the same as or similar to those of the first mounting base 13 and the positional relationship between the first mounting base 13 and the feed hopper 11, which will not be described herein again. Similarly, the connection mode of the adjusting mechanism 50 and the second mounting base 16 can be the same as or similar to that of the driving mechanism 30 and the first mounting base 13, which will not be described herein again.

[0065] In the embodiments of the present application, the grinding mechanism 40 can adopt the mechanism commonly used in the related field, and the principle of setting the adjusting gear 41 on the grinding mechanism 40 and the principle of adjusting the fineness of the powder by rotating the adjusting gear 41 on the grinding mechanism 40 are both common principles in the related field, which will not be described herein again.

[0066] In some embodiments, the bean grinding device 101 can further include a cover plate 60. The cover plate 60 is used to cover the opening of the feed hopper 11 and the feed slot 112, and is detachably connected to the top of the feed hopper 11.

[0067] For example, as shown in Figure 2 and Figure 4 The cover plate 60 can be inserted into the feed slot 112 in the vertical direction to cover the feed slot 112 and the opening of the feed hopper 11. The peripheral wall of the cover plate 60 can be sleeved with a second sealing ring 61, which can be attached to the side wall of the feed slot 112, so as to limit the relative movement between the cover plate 60 and the feed hopper 11 in the vertical direction through the friction force.

[0068] It can be understood that when the cover plate 60 is covered on the feed hopper 11, foreign matters from the outside can be blocked from entering the feed slot 112, thereby reducing the probability of foreign matters blocking the first feed port 111 and affecting the working of the grinding mechanism 40.

[0069] When the plurality of door bodies 23 cover the first feed port 111, the plurality of door bodies 23 and the first sealing ring 152 can close the feed slot 112 from the bottom of the feed slot 112, and the cover plate 60 can close the feed slot 112 from the top of the feed slot 112, so as to form a closed space in the feed slot 112 when the extraction device 102 is working, thereby reducing the probability of water vapor entering the feed slot 112 and affecting the quality of the bean material.

[0070] Please refer to Figure 9In some embodiments, each door body 23 can further include a first connecting end 232 and a second connecting end 233, the first connecting end 232, the second connecting end 233 and the abutting end 231 being spaced apart in a direction perpendicular to the vertical direction. Each door body 23 further includes a first abutting wall 234 and a second abutting wall 235, the first abutting wall 234 can be located between the first connecting end 232 and the abutting end 231, the second abutting wall 235 can be located between the second connecting end 233 and the abutting end 231, and an end of the first abutting wall 234 close to the abutting end 231 can be connected to an end of the second abutting wall 235 close to the abutting end 231. The first abutting end 231 of each door body 23 can abut the second abutting wall 235 of the adjacent door body 23, so that each door body 23 abuts the adjacent door body 23; at this time, the abutting ends 231 of the plurality of door bodies 23 abut each other, thereby completely shielding the first feeding port 111.

[0071] It can be understood that the first abutting wall 234 and the second abutting wall 235 can be arc-shaped walls matched with each other. In the first abutting wall 234 and the second abutting wall 235, one wall is a convex arc surface, and the other wall is a concave arc surface. In the embodiments of the present application, the first abutting wall 234 and the second abutting wall 235 are not specifically limited to be convex arc surfaces or concave arc surfaces. For example, as shown in FIG. 2, the first abutting wall 234 is a concave arc surface, and the second abutting wall 235 is a convex arc surface. Figure 9

[0072] In some embodiments, the linkage assembly 22 can include a positioning ring 221 and a plurality of connecting arms 222. A second through port 2211 can be formed in the middle of the positioning ring 221, the second through port 2211 is correspondingly arranged with the first through port 211, and the second through port 2211 is in communication with the first through port 211 to realize the communication with the first feeding port 111. The positioning ring 221 is detachably connected to the bean bin mechanism 10, and the positioning ring 221 can be relatively fixed with the feeding hopper 11. The positioning ring 221 is located on the side of the plurality of door bodies 23 away from the feeding hopper 11, and the positioning ring 221 is rotatably connected to the first connecting end 232 of each door body 23. The second through port 2211 is located between the first through port 211 and the first feeding port 111 in the vertical direction.

[0073] The plurality of connecting arms 222 correspond one-to-one to the plurality of door bodies 23. The plurality of connecting arms 222 are arranged around the positioning ring 221. Each connecting arm 222 includes a first end and a second end spaced apart. The first end of each connecting arm 222 is rotatably and detachably connected to the rotating seat 21, and the second end is rotatably connected to the second connecting end 233 of the corresponding door body 23. The plurality of connecting arms 222 are located on the side of the plurality of door bodies 23 away from the feeding hopper 11. The rotation center axis of each connecting arm 222 is parallel to the rotation center axis of the rotating seat 21. ​

[0074] It can be understood that the axial directions of the rotating seat 21, each connecting arm 222 and each door body 23 are all coincident with the vertical direction.

[0075] It can be understood that when the rotating seat 21 rotates, the positioning ring 221 and the bean bin mechanism 10 can remain relatively fixed and thus do not rotate, and each connecting arm 222 can rotate synchronously in the first receiving groove 2131. Since the rotation center axis of each connecting arm 222 is different from the rotation center axis of the rotating seat 21, each connecting arm 222 can rotate relative to the rotating seat 21 while rotating relative to the positioning ring 221. The rotation of each connecting arm 222 can drive the corresponding door body 23 to rotate synchronously, so that the plurality of door bodies 23 can approach or move away from each other through synchronous rotation, and the first feeding port 111 can be closed or opened.

[0076] It can be understood that the positioning ring 221 and the plurality of connecting arms 222 can be located at the same height in the vertical direction, and the peripheral portion of the positioning ring 221 can be provided with a plurality of notches, each notch being configured to allow the corresponding connecting arm 222 to enter during rotation, so that the positioning ring 221 avoids each connecting arm 222.

[0077] In some embodiments, as shown in FIG. 1, the bottom of the feeding hopper 11 can be fixedly connected with a plurality of first positioning cylinders 114. The plurality of first positioning cylinders 114 are arranged at intervals in a direction perpendicular to the vertical direction and extend in the vertical direction towards the bean grinding mechanism 40. Figure 6 The positioning ring 221 can be fixedly connected with a plurality of positioning columns 2212. The plurality of positioning columns 2212 are arranged at intervals in a direction perpendicular to the vertical direction and extend in the vertical direction towards the bean bin mechanism 10. The plurality of positioning columns 2212 correspond one-to-one to the plurality of first positioning cylinders 114, and the plurality of positioning columns 2212 and the plurality of first positioning cylinders 114 all avoid the plurality of door bodies 23. Each positioning column 2212 can be inserted into the corresponding first positioning cylinder 114 and remain relatively fixed with the corresponding first positioning cylinder 114, so as to achieve detachable connection between the positioning ring 221 and the feeding hopper 11.

[0078] In some embodiments, the positioning ring 221 can be fixedly connected with a plurality of first pivots 2213, which are arranged at intervals in a direction surrounding the second passing port 2211. The plurality of first pivots 2213 all extend in the vertical direction towards the bean bin mechanism 10. The plurality of first pivots 2213 correspond one-to-one to the plurality of door bodies 23. Each first pivot 2213 penetrates the first connecting end 232 of the corresponding door body 23 in the vertical direction to pivotally connect the corresponding door body 23, so as to achieve rotatable connection between the positioning ring 221 and the plurality of door bodies 23.

[0079] In some embodiments, as shown in FIG. 1, the bottom of the feeding hopper 11 can be fixedly connected with a plurality of first positioning cylinders 114. The plurality of first positioning cylinders 114 are arranged at intervals in a direction perpendicular to the vertical direction and extend in the vertical direction towards the bean grinding mechanism 40.

[0080] Each connecting arm 222 is fixedly connected with a second pivot 2221 and a third pivot 2222. The second pivot 2221 is located at the first end of the connecting arm 222, and the third pivot 2222 is located at the second end of the connecting arm 222. The second pivot 2221 extends in the vertical direction away from the bean bin mechanism 10, and the third pivot 2222 extends in the vertical direction towards the bean bin mechanism 10. Each second pivot 2221 can pass through the bottom wall of the first receiving groove 2131 to pivotally connect with the rotating seat 21, so as to achieve rotatable connection between each connecting arm 222 and the rotating seat 21. Each third pivot 2222 can pass through the second connecting end 233 of the corresponding door body 23 to pivotally connect with the corresponding door body 23, so as to achieve rotatable connection between each connecting arm 222 and the corresponding door body 23.

[0081] In some embodiments, the rotating seat 21 can include a first sub-seat 213 and a second sub-seat 214. The first sub-seat 213 and the second sub-seat 214 are arranged adjacent to each other in the vertical direction, and the first sub-seat 213 is located on the side of the second sub-seat 214 away from the bean grinding mechanism 40. The first sub-seat 213 and the second sub-seat 214 are both circular ring-shaped seat bodies, and the outer diameter of the first sub-seat 213 is greater than the outer diameter of the second sub-seat 214. The first through port 211 penetrates the first sub-seat 213 and the second sub-seat 214 in the vertical direction. The first receiving groove 2131 is opened on the side of the first sub-seat 213 facing the bean bin mechanism 10. The arc-shaped rack 212 is fixedly connected to the peripheral portion of the second sub-seat 214.

[0082] Please refer to Figure 10 , the bin door mechanism 20 can further include a bin door mounting seat 24. The bottom of the feed hopper 11 can be fixedly connected with a plurality of second positioning cylinders 115. The plurality of second positioning cylinders 115 are arranged in a direction perpendicular to the vertical direction and extend in the vertical direction towards the bean grinding mechanism 40. The bin door mounting seat 24 can be fixedly connected to the end of the plurality of second positioning cylinders 2212 away from the feed hopper 11. As shown in Figure 3 , the side of the bin door mounting seat 24 facing the feed hopper 11 is provided with a mounting groove 241, and the middle portion of the bottom wall of the mounting groove 241 is provided with a third through port 242. The third through port 242 penetrates the bin door mounting seat 24 in the vertical direction. The third through port 242 communicates with the mounting groove 241. The second sub-seat 214 is received in the mounting groove 241 and rotationally cooperates with the inner wall of the mounting groove 241; the end of the first mounting seat 13 facing the bean grinding mechanism 40 enters the mounting groove 241; the gear portion of the first gear member 32 is received in the mounting groove 241 and rotatably connected to the bottom wall of the mounting groove 241. When the second sub-seat 214 is located in the mounting groove 241, the third through port 242 can communicate with the first through port 211 to achieve communication with the first feed port 111.

[0083] A boss 243 is arranged on the inner side wall of the mounting groove 241. The boss 243 is in abutment with the first sub-base 213 and is in rotational cooperation with the first sub-base 213. The boss 243 is in the shape of an incomplete ring, and the spacing between the two ends of the boss 243 can accommodate the arc-shaped rack 212. The distance between the two ends of the boss 243 in the circumferential direction is greater than the length of the arc-shaped rack 212 in the circumferential direction. The gear portion of the first gear member 32 can enter the spacing between the two ends of the boss 243 to engage with the arc-shaped rack 212.

[0084] It can be understood that the rotational connection between the first gear member 32 and the bottom wall of the mounting groove 241 can be the same as or similar to the rotational connection between the connecting arm 222 and the bottom wall of the first receiving groove 2131, which will not be described here.

[0085] It can be understood that the end of the first mounting base 13 facing the bean grinding mechanism 40 can be accommodated in the mounting groove 241.

[0086] It can be understood that the two ends of the boss 243 can limit the movement distance of the arc-shaped rack 212 by abutting against the arc-shaped rack 212, so as to limit the rotation angle of the rotating base 21. In this way, the situation that the rotating base 21 continues to rotate after the door body 23 is rotated to the position can be reduced, and the damage to the bin door mechanism 20 can be reduced. The service life of the bean grinding device 101 and the beverage machine 100 can be increased.

[0087] The bin door mounting base 24 can accommodate the linkage assembly 22 and the plurality of door bodies 23 by accommodating the rotating base 21. In this way, the connection between the bin door mounting base 24 and the bean bin mechanism 10 can realize the connection between the bin door mechanism 20 and the bean bin mechanism 10. During the assembly of the beverage machine 100, the bin door mechanism 20 and the bean bin mechanism 10 can be connected first, and then the bin door mechanism 20 and the bean bin mechanism 10 can be installed in the shell synchronously, thereby improving the convenience of the assembly of the beverage machine 100.

[0088] For example, the bin door mounting base 24 can be fixedly connected to the plurality of second positioning cylinders 115 by screws penetrating the bin door mounting base 24 and being threadedly connected to the plurality of second positioning cylinders 115. By disassembling the screws, the bean bin mechanism 10 and the bin door mechanism 20 can be separated, thereby facilitating the maintenance of the bean bin mechanism 10 and the bin door mechanism 20 by the staff or the user.

[0089] In the embodiments of the present application, the connection relationship between the boss 243 and the bin door mounting base 24 is not specifically limited. For example, the boss 243 can be formed by bending and extending part of the structure of the mounting shell into the mounting groove 241 after the mounting shell is processed by pressing. For another example, the boss 243 can be an independent structure fixedly connected to the side wall and / or the bottom wall of the mounting groove 241.

[0090] In some embodiments, asFigure 2 and Figure 4 As shown in FIG. 4, the grinding mechanism 40 is provided with a second feeding port 42 on the side of the grinding mechanism 40 close to the bean bin mechanism 10. The second feeding port 42 is arranged in correspondence with the third through port 242 and is in communication with the third through port 242. The grinding mechanism 40 grinds the bean material entering the grinding mechanism 40 through the second feeding port 42 to generate powder.

[0091] The grinding mechanism 40 can be fixedly connected with a receiving ring 43. The receiving ring 43 is located on the side of the grinding mechanism 40 close to the bean bin mechanism 10. The receiving ring 43 can be arranged around the second feeding port 42 and is in communication with the second feeding port 42. The second sub-base 214 is provided with a second receiving groove 2141 on the side of the second sub-base 214 close to the grinding mechanism 40. The second receiving groove 2141 is in communication with the first through port 211 and the mounting groove 241. The receiving ring 43 can pass through the third through port 242 and the mounting groove 241 and enter the second receiving groove 2141. The receiving ring 43 can abut against the top wall of the second receiving groove 2141 to realize receiving of the rotating base 21. The receiving ring 43 can be rotationally fitted with the bottom wall and the peripheral wall of the second receiving groove 2141 to realize relative rotation between the rotating base 21 and the receiving ring 43.

[0092] It can be understood that when the first feeding port 111 is opened, the bean material in the feeding groove 112 can pass through the first feeding port 111, the space surrounded by the plurality of door bodies 23, the second through port 2211, the first through port 211, the receiving ring 43 and the second feeding port 42 in the vertical direction from top to bottom and enter the grinding mechanism 40 for grinding. The third through port 242 can realize avoidance of the receiving ring 43 by the bin door mounting base 24. The receiving ring 43 can pass through the receiving rotating base 21 to realize receiving of the bean bin mechanism 10 and the bin door mechanism 20. Meanwhile, the receiving ring 43 can guide the bean material passing through the first through port 211 to flow to the second feeding port 42, thereby reducing the probability of the bean material scattering in the shell and failing to enter the grinding mechanism 40 and reducing waste of the bean material.

[0093] The receiving of the bin door mechanism 20 by the receiving ring 43 can realize separable connection between the grinding mechanism 40 and the bin door mechanism 20. The worker can lift the bin door mechanism 20 to realize separation of the bin door mechanism 20 and the grinding mechanism 40, which can facilitate the worker to separately maintain the bin door mechanism 20 and the grinding mechanism 40 and can improve the convenience of assembly of the beverage machine 100.

[0094] In other embodiments, the receiving ring 43 can be sleeved on the grinding mechanism 40 and can rotate relative to the grinding mechanism 40. When the bin door mechanism 20 is moved away from the receiving ring 43, the worker can take the receiving ring 43 off the grinding mechanism 40.

[0095] The bean grinder 101 and the beverage machine 100 provided by the embodiments of the present application can make the beans in the feeding groove 112 pass through the first feeding port 111, the space surrounded by the plurality of door bodies 23, the second passing port 2211, the first passing port 211, the receiving ring 43 and the second feeding port 42, and then enter the bean grinder 40 when the first feeding port 111 is not blocked by the plurality of door bodies 23, i.e., the first feeding port 111 is opened.

[0096] After the beans enter the bean grinder 40, the user can open the cover plate 60 on the feeding hopper 11 and manually rotate the first knob 31, so as to drive the first gear 32 to rotate. The arc-shaped rack 212 and the rotating seat 21 rotate synchronously with the first gear 32. The rotation of the rotating seat 21 can drive the plurality of connecting arms 222 to rotate relative to the rotating seat 21 and the bean bin mechanism 10, so as to drive the plurality of door bodies 23 to rotate synchronously. The abutting ends 231 of the plurality of door bodies 23 are close to each other. When the plurality of door bodies 23 are rotated to the abutting ends 231 abutting to each other and the first abutting wall 234 of each door body 23 abutting to the second abutting wall 235 of the adjacent door body 23, the plurality of door bodies 23 block the first feeding port 111, and the first feeding port 111 is closed.

[0097] Then the user can cover the cover plate 60 on the feeding hopper 11. The user can start the beverage machine 100 through the switch on the beverage machine 100, so that the bean grinder 40 can grind the beans entering the bean grinder 40, to generate powder, and transmit the powder to the extraction device 102. The extraction device 102 can extract the received powder, to obtain liquid.

[0098] It can be understood that when the extraction device 102 works, the plurality of abutting door bodies 23 can block the water vapor from passing through the first feeding port 111 in the vertical direction, and the first sealing ring 152 abutting to the plurality of door bodies 23 can block the water vapor from passing through the first feeding port 111 in the direction perpendicular to the vertical direction. In this way, the feeding groove 112 can be sealed, the probability of the beans being dampened can be reduced, the taste of the liquid generated by the beverage machine 100 from the beans can be improved, and the time for which the beans can be stored in the feeding groove 112 can be increased. In addition, the user can manually close the first feeding port 111 when the coffee machine is in standby or off for a short period of time, and the second sealing ring 61 of the bean bin cover plate can also seal the bean bin mechanism 10, so that the bean bin mechanism 10 forms a closed space, and the coffee beans in the bean bin can be prevented from being dampened and deteriorated, or the user can be relieved from the tedious operation of manually taking out the coffee beans.

[0099] Meanwhile, the bean bin mechanism 10 can be fixed relative to the bin door mechanism 20, and the bin door mechanism can be detachably received on the bean grinding mechanism 40, so that the combination mechanism formed by the bean bin mechanism 10 and the bin door mechanism 20 can be detachably connected with the bean grinding mechanism 40. The staff or user can take down the combination mechanism from the bean grinding mechanism 40 to realize the separate maintenance of the combination mechanism and the bean grinding mechanism 40, so that the convenience of the maintenance of the bean bin mechanism 10, the bin door mechanism 20 and the bean grinding mechanism 40 can be improved. Meanwhile, the staff or user can place the combination mechanism on the receiving ring 43 to realize the connection between the combination mechanism and the bean grinding mechanism 40, so that the convenience of the assembly of the beverage machine 100 can be improved.

[0100] It is apparent for those skilled in the art that the present application is not limited to the details of the above-described exemplary embodiments, but can be implemented in other concrete forms without departing from the spirit or essential characteristics of the present application. Therefore, the above-described embodiments of the present application should be considered in all aspects as illustrative and not restrictive, and the scope of the present application is defined by the appended claims rather than the above description, and it is intended to embrace all changes falling within the meaning and scope of the equivalent elements of the claims.

Claims

1. A bean grinding device, characterized by The application relates to a bean grinder, which comprises: a bean bin mechanism, a first feeding port being formed in the bean bin mechanism, the bean bin mechanism being used for receiving bean materials; a bin door mechanism, the bin door mechanism being arranged on one side of the bean bin mechanism in the direction in which the first feeding port penetrates the bean bin mechanism, the bin door mechanism comprising a rotating seat, a linkage assembly and a plurality of door bodies, the plurality of door bodies being arranged in correspondence with the first feeding port, the plurality of door bodies being connected to the rotating seat through the linkage assembly so as to control the first feeding port to be closed or opened; a driving mechanism, the driving mechanism being connected to the rotating seat, the driving mechanism being used for driving the rotating seat to rotate so as to close or open the first feeding port; a bean grinding mechanism, the bean grinding mechanism being arranged on the side of the bin door mechanism which is away from the bean bin mechanism, the bean grinding mechanism being used for receiving the bean materials from the first feeding port and processing the bean materials into powder materials.

2. The bean grinder as claimed in claim 1, wherein An arc-shaped rack is arranged on the peripheral wall of the rotating seat, and the driving mechanism comprises: a first knob, the first knob being arranged on the side of the bean bin mechanism which is away from the bin door mechanism, the first knob being rotatably arranged on the bean bin mechanism; a first gear, the first gear being connected to the first knob, the first gear being engaged with the arc-shaped rack.

3. The bean grinder as claimed in claim 1, wherein: The rotating seat is rotatably arranged on one side of the bean bin mechanism, a first passing port being formed in the rotating seat, the first passing port being arranged in correspondence with the first feeding port, the first passing port being used for allowing the bean materials to pass through.

4. A bean grinder as claimed in claim 3, characterized in that Each of the door bodies comprises a first connecting end and a second connecting end, the first connecting end and the second connecting end being arranged at intervals, and the linkage assembly comprises: a positioning ring, the positioning ring being connected to the bean bin mechanism, a second passing port being formed in the middle part of the positioning ring, the second passing port being arranged in correspondence with the first feeding port and the first passing port, the first connecting end of each of the door bodies being rotatably connected to the positioning ring; a plurality of connecting arms, the plurality of connecting arms being arranged around the positioning ring, each of the connecting arms being rotatably connected to the rotating seat and rotatably connected to the corresponding second connecting end, and the position connected to the rotating seat and the position connected to the door body being arranged at intervals on each of the connecting arms.

5. A bean grinder as claimed in claim 4, characterized in that A first receiving groove is formed in the rotating seat, the first receiving groove being communicated with the first passing port, the plurality of door bodies being received in the first receiving groove, and the positioning ring and the plurality of connecting arms being received in the first receiving groove, the positioning ring and the plurality of connecting arms being located on the side of the plurality of door bodies which is away from the bean bin mechanism.

6. The bean grinder as claimed in claim 1, wherein Each of the door bodies comprises an abutting end, a first connecting end, a second connecting end, a first abutting wall and a second abutting wall, the abutting ends of the plurality of door bodies being used for abutting each other so as to close the first feeding port. The first connecting end, the second connecting end and the abutting end are arranged at intervals, the first abutting wall is located between the first connecting end and the abutting end, and the second abutting wall is located between the second connecting end and the abutting end; among the first abutting wall and the second abutting wall, one is a convex arc surface, and the other is a concave arc surface; when the abutting ends of the plurality of door bodies are abutted, each first abutting wall is used for abutting with the second abutting wall of an adjacent door body.

7. The bean grinder as claimed in claim 1, wherein The bin door mechanism further comprises: A bin door mounting seat connected with the bean bin mechanism, an installation groove is formed on one side of the bin door mounting seat facing the bean bin mechanism, the rotating seat is at least partially accommodated in the installation groove, and the driving mechanism is partially accommodated in the installation groove; A third through port is formed on the bin door mounting seat, the third through port is arranged corresponding to the first feeding port, the third through port is in communication with the installation groove, and the third through port is used for passing the bean material.

8. The bean grinder as claimed in claim 1, wherein The bean bin mechanism comprises: A feeding hopper for receiving the bean material, the first feeding port is formed on one side of the feeding hopper facing the bean grinding mechanism; A first mounting seat penetrating the feeding hopper, the first mounting seat is used for partially accommodating the driving mechanism; A first convex ring arranged on one side of the feeding hopper facing the bean grinding mechanism, and the first convex ring is arranged around the first feeding port, the rotating seat is at least partially accommodated in the first convex ring and rotationally fitted with the inner wall of the first convex ring; A second convex ring arranged on one side of the feeding hopper facing the bean grinding mechanism, and the second convex ring is arranged around the first feeding port, the second convex ring is located inside the first convex ring, the second convex ring and the part of the feeding hopper where the first feeding port is formed cooperate to form a clamping space, a first sealing ring is arranged in the clamping space, and the first sealing ring is used for abutting with the plurality of door bodies.

9. The bean grinder as claimed in claim 1, wherein The bean grinding mechanism has a second feeding port formed on one side facing the bean bin mechanism, the second feeding port is arranged corresponding to the first feeding port, and the bean grinding mechanism is used for processing the bean material entering the bean grinding mechanism through the second feeding port; The bean grinding device is provided with a receiving ring in communication with the second feeding port, the receiving ring receives the rotating seat and rotationally fits with the rotating seat.

10. A beverage machine characterized by The beverage machine comprises: An extraction device for receiving and extracting powder; The bean grinding device according to any one of claims 1 to 9, the bean grinding device is connected with the extraction device, the bean grinding device is used for processing bean material into powder and outputting the powder to the extraction device.

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