Coffee machine convenient to maintain

Abstract

A coffee machine convenient to maintain comprises a main body, a bean grinding device is arranged in the main body and comprises a grinding bin, a first transmission part and a fixing ring, a plurality of mounting columns are annularly arranged on the peripheral side of the grinding bin, a plurality of movable holes are annularly formed in the first transmission part, and a plurality of fixing lugs are annularly arranged on the peripheral side of the fixing ring. The mounting column penetrates through the movable hole and then is connected with the fixing lug, and the first transmission piece rotates on the grinding bin in a limited mode through cooperation of the movable hole and the mounting column. A plurality of mounting columns are annularly arranged on the peripheral side of a grinding bin, a plurality of movable holes are annularly formed in a first transmission part, a plurality of fixing lugs are annularly arranged on the peripheral side of a fixing ring, the mounting columns penetrate through the movable holes and then are connected with the fixing lugs, and the fixing ring, the first transmission part and the grinding bin are sequentially arranged from top to bottom; according to the structure, when the bean grinding device is cleaned and maintained, only the upper cover assembly and the rear cover assembly of the coffee machine need to be detached, the fixing ring does not need to be detached, and the bean grinding device is more convenient to clean and maintain.

Description

Technical Field

[0001] This utility model relates to the field of coffee machine technology, and in particular to a coffee machine that is easy to maintain. Background Technology

[0002] The coffee grinder of a coffee machine includes a grinding chamber, an upper grinding wheel, and a lower grinding wheel. The upper and lower grinding wheels are located inside the grinding chamber, and a grinding gap is provided between them. The size of the grinding gap can be adjusted to regulate the coarseness of the coffee powder. The size of the grinding gap is adjusted via gears. A retaining ring for installing the bean hopper is installed between the grinding chamber and the top cover of the coffee machine. When cleaning and maintaining the coffee grinder, it is necessary to remove the top cover, the back cover, and the retaining ring, which is a cumbersome process. Moreover, when reassembling after maintenance, the installation tolerance of the retaining ring needs to be readjusted, making the reassembly process cumbersome. In addition, some coffee machines install the retaining ring on the grinding chamber, so that the coffee machine does not need to remove the retaining ring for cleaning and maintenance, and the installation tolerance of the retaining ring does not need to be readjusted during reassembly. However, since the aforementioned gears are also installed on the grinding chamber, the coffee grinder occupies a larger volume, which in turn makes the coffee machine larger.

[0003] Therefore, further improvements are necessary. Utility Model Content

[0004] The purpose of this invention is to provide a coffee machine that is simple in structure, easy to maintain, small in size, easy to assemble and disassemble, and highly practical, so as to overcome the shortcomings of the prior art.

[0005] A coffee machine designed for this purpose and easy to maintain includes a main body, within which a grinding device is installed. The grinding device comprises a grinding chamber, a first transmission component, and a fixing ring. The grinding chamber has a plurality of mounting posts arranged in a ring around its periphery. The first transmission component has a plurality of movable holes arranged in a ring around its periphery. The fixing ring has a plurality of fixing ears arranged in a ring around its periphery. The mounting posts pass through the movable holes and connect to the fixing ears. The first transmission component is limited to rotate on the grinding chamber by the cooperation of the movable holes and the mounting posts.

[0006] The fixing ring, the first transmission component, and the grinding chamber are arranged sequentially from top to bottom.

[0007] One end of the mounting post is provided with an insertion part, and the fixing ear is provided with a slot. The insertion part is positioned and inserted into the slot. The bottom of the slot is provided with a support surface, and the fixing ring is supported on the mounting post through the support surface.

[0008] The fixing ear is provided with a first fixing hole, and the mounting post is provided with a second fixing hole. The fastener passes through the first fixing hole and is then fastened to the second fixing hole so that the fixing ring is fixedly installed on the grinding chamber.

[0009] The two ends of the movable hole are respectively provided with limiting portions, and the mounting column is limited on the limiting portions when sliding on the movable hole.

[0010] The grinding device further comprises a driving member and a second transmission member, the driving member is connected with the second transmission member, the second transmission member is engaged with the first transmission member, and the driving member drives the first transmission member to rotate through the second transmission member.

[0011] The grinding device further comprises an upper grinding wheel assembly and a lower grinding wheel, a grinding cavity is arranged in the grinding bin, the upper grinding wheel assembly and the lower grinding wheel are arranged in the grinding cavity, the upper grinding wheel assembly is located at the periphery of the lower grinding wheel, and a grinding gap is arranged between the upper grinding wheel assembly and the lower grinding wheel.

[0012] The grinding device further comprises an adjusting ring assembly, the adjusting ring assembly is installed on the inner hole of the first transmission member, a threaded portion is arranged on the inner side of the adjusting ring assembly, a plurality of lugs are annularly arranged on the outer periphery of the upper grinding wheel assembly, and the lugs are matched with the threaded portion; the first transmission member drives the adjusting ring assembly to rotate, so that the adjusting ring assembly drives the upper grinding wheel assembly to move up and down, and the size of the grinding gap is adjusted.

[0013] The main body comprises a shell assembly, an upper cover assembly and a rear cover assembly, the upper cover assembly is detachably installed on the top of the shell assembly, the rear cover assembly is detachably installed on the rear of the shell assembly, an inner cavity is formed between the shell assembly, the upper cover assembly and the rear cover assembly, and the grinding device is installed on the inner cavity; a bean bin communicating with the grinding cavity is arranged on the top of the main body, and the bean bin is detachably installed on the fixing ring.

[0014] A plurality of positioning edges are annularly arranged on the circumferential side of the fixing ring, the bottom of the upper cover assembly is provided with annularly distributed positioning grooves, and the positioning edges are positioned and matched with the positioning grooves.

[0015] The coffee machine is provided with a plurality of mounting columns arranged annularly on the circumferential side of the grinding bin, a plurality of movable holes are annularly arranged on the first transmission member, a plurality of fixing lugs are annularly arranged on the circumferential side of the fixing ring, the mounting columns are connected with the fixing lugs after penetrating through the movable holes, and the fixing ring, the first transmission member and the grinding bin are sequentially arranged from top to bottom; only the upper cover assembly and the rear cover assembly of the coffee machine need to be disassembled when the grinding device is cleaned and maintained, the fixing ring does not need to be disassembled, the cleaning and maintenance of the grinding device are more convenient, the mounting columns, the movable holes and the fixing lugs can fully utilize the longitudinal space of the coffee machine, the volume occupied by the grinding device is reduced, and the volume of the coffee machine is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a whole structure schematic view of the grinding device in an embodiment of the utility model.

[0017] Figure 2 It is a partial structure sectional view of the grinding device in an embodiment of the utility model.

[0018] Figure 3 It is partial structure schematic view of the bean grinder device in one embodiment of the utility model.

[0019] Figure 4 It is partial structure exploded view of the bean grinder device in one embodiment of the utility model.

[0020] Figure 5 It is the exploded structure schematic view of the coffee machine in one embodiment of the utility model.

[0021] Figure 6 It is the overall structure schematic view of the coffee machine in one embodiment of the utility model.

[0022] Figure 7 It is the cross section view of the coffee machine in one embodiment of the utility model.

[0023] Figure 8 It is the assembly structure schematic view of the upper cover assembly and the fixing ring in one embodiment of the utility model.

[0024] Figure 9 It is the overall structure schematic view of the rotating ring in one embodiment of the utility model.

[0025] Figure 10 It is the cross section view of the bean grinder device in one embodiment of the utility model. DETAILED DESCRIPTION

[0026] The utility model will be further described below in combination with the drawings and embodiments.

[0027] Referring to Figures 1-10 , the coffee machine convenient to maintain includes main body b, is provided with bean grinder device a in main body b, bean grinder device a includes grinding bin 1, first transmission piece 2 and fixed ring 3, and the circumferential side of grinding bin 1 is annularly provided with a plurality of mounting columns 4, a plurality of movable holes 5 are annularly provided on first transmission piece 2, and the circumferential side of fixed ring 3 is annularly provided with a plurality of fixed ears 6, mounting column 4 is connected with fixed ear 6 after passing through movable hole 5, and first transmission piece 2 is limited to rotate on grinding bin 1 by the cooperation of movable hole 5 and mounting column 4.

[0028] Fixed ring 3, first transmission piece 2 and grinding bin 1 are sequentially arranged from top to bottom.

[0029] The upper end of mounting column 4 is provided with plug-in part 7, the bottom of fixed ear 6 is provided with slot 8, plug-in part 7 is positioned and plugged in slot 8, the bottom of slot 8 is provided with supporting surface 9, and fixed ring 3 is supported on mounting column 4 through supporting surface 9.

[0030] The first fixing hole 10 is arranged on the fixing ear 6, the second fixing hole 11 is arranged on the mounting column 4, and the fastener (screw) is fastened and connected through the first fixing hole 10 and the second fixing hole 11, so that the fixing ring 3 is fixedly installed on the grinding bin 1, and the fixing ring 3 does not need to be disassembled when the coffee machine is cleaned and maintained.

[0031] The two ends of the movable hole 5 are respectively provided with limiting portions 12, and the mounting column 4 is limited on the limiting portions 12 when sliding on the movable hole 5, thereby limiting the rotation angle of the first transmission member 2.

[0032] The bean grinding device a further comprises a driving member 13 and a second transmission member 14, the driving member 13 is connected with the second transmission member 14, the second transmission member 14 is engaged with the first transmission member 2, and the driving member 13 drives the first transmission member 2 to rotate through the second transmission member 14; the driving member 13 is rotatably installed on the main body b.

[0033] The driving member 13 is a regulating gear, the first transmission member 2 is a gear plate, and the second transmission member 14 is a gear rod, the gear plate and the gear rod are engaged with each other; the side of the main body b is provided with a through hole 30, and the driving member 13 partially penetrates through the through hole 30 and extends out of the main body b, so that the driving member 13 can be manually rotated, and the size of the grinding gap 29 can be manually adjusted.

[0034] In addition, the driving member 13 can also be connected with a motor, and the motor drives the driving member 13 to rotate, thereby automatically adjusting the size of the grinding gap 29.

[0035] The bean grinding device a further comprises an upper grinding wheel assembly 15 and a lower grinding wheel 16, and the grinding bin 1 is provided with a grinding cavity 17, the upper grinding wheel assembly 15 and the lower grinding wheel 16 are arranged in the grinding cavity 17, and the upper grinding wheel assembly 15 is located at the periphery of the lower grinding wheel 16, and the grinding gap 29 is arranged between the upper grinding wheel assembly 15 and the lower grinding wheel 16.

[0036] The bean grinding device a further comprises a driver 31, the driver 31 is drivingly connected with the lower grinding wheel 16 through a transmission assembly, the driver 31 is a motor, and the transmission assembly can be a gear assembly; when the bean grinding device a works, the driver 31 drives the lower grinding wheel 16 to rotate, and the lower grinding wheel 16 cooperates with the upper grinding wheel assembly 15 to grind coffee beans.

[0037] The bean grinding device a further comprises an adjusting ring assembly 18, the adjusting ring assembly 18 is installed on the inner hole 28 of the first transmission member 2, the inner side of the adjusting ring assembly 18 is provided with a threaded portion 19, the outer periphery of the upper grinding wheel assembly 15 is annularly provided with a plurality of lugs 20, and the lugs 20 are engaged with the threaded portion 19; when the first transmission member 2 rotates, the adjusting ring assembly 18 is driven to rotate, so that the adjusting ring assembly 18 drives the upper grinding wheel assembly 15 to move up and down, thereby adjusting the size of the grinding gap 29.

[0038] The adjusting ring assembly 18 comprises a rotating ring 32 and an adjusting ring 33, and the upper grinding wheel assembly 15 comprises an upper grinding wheel 34, a fixed ring 35 and an adjusting matching ring 36, the inner side of the rotating ring 32 is annularly provided with a plurality of ribs 37, the upper part of the adjusting ring 33 is provided with a ring of tooth grooves 38, the ribs 37 are inserted into the tooth grooves 38, the rotating ring 32 is installed on the inner hole 28 of the first transmission member 2, the adjusting ring 33 is rotatably installed on the grinding bin 1, the fixed ring 35 and the adjusting matching ring 36 are connected through a screw buckle, the upper grinding wheel 34 is installed on the fixed ring 35 through a buckle, the grinding gap 29 is arranged between the upper grinding wheel 34 and the lower grinding wheel 16, the screw thread part 19 is arranged on the inner side of the adjusting ring 33, and the lug 20 is arranged on the outer periphery of the adjusting matching ring 36; the first transmission member 2 drives the rotating ring 32 to rotate when rotating, the rotating ring 32 drives the adjusting ring 33 to rotate through the cooperation of the ribs 37 and the tooth grooves 38 when rotating, the adjusting ring 33 drives the adjusting matching ring 36 to move up and down through the cooperation of the lug 20 and the screw thread part 19 when rotating, and the adjusting matching ring 36 drives the fixed ring 35 and the upper grinding wheel 34 to move up and down, so that the size of the grinding gap 29 is adjusted.

[0039] The main body b comprises a shell assembly 21, an upper cover assembly 22 and a rear cover assembly 23, the upper cover assembly 22 is detachably installed on the top of the shell assembly 21 through screws or buckles, the rear cover assembly 23 is detachably installed on the rear part of the shell assembly 21 through screws or buckles, the shell assembly 21, the upper cover assembly 22 and the rear cover assembly 23 form an inner cavity 24, and the bean grinding device a is installed on the inner cavity 24; the main body b is provided with a bean bin 25 communicating with the grinding cavity 17, and the bean bin 25 is detachably installed on the fixed ring 3 through a screw buckle; when the bean grinding device a works, coffee beans in the bean bin 25 fall into the grinding cavity 17; the upper cover assembly 22 and the rear cover assembly 23 can be removed, so that the bean grinding device a can be cleaned and maintained, and the cleaning and maintenance of the bean grinding device a is more convenient after the upper cover assembly 22 and the rear cover assembly 23 are reinstalled.

[0040] The fixed ring 3 is annularly provided with a plurality of positioning edges 26 on the circumferential side, the bottom of the upper cover assembly 22 is provided with annularly distributed positioning grooves 27, and the positioning edges 26 are positioned and matched with the positioning grooves 27; when the first transmission member 2 rotates to the limiting position, the limiting part 12 acts on the mounting column 4, and then acts on the fixed ring 3, and the fixed ring 3 acts on the upper cover assembly 22 through the positioning edges 26, so that the force of the limiting part 12 on the mounting column 4 can be unloaded to the upper cover assembly 22, and deformation of the mounting column 4 caused by the single force is avoided.

[0041] The above is the preferred scheme of the utility model, and the basic principle, main features and advantages of the utility model are displayed and described. Those skilled in the art should understand that the utility model is not limited to the above-mentioned embodiments, and the above-mentioned embodiments and the description in the specification are only for illustrating the principle of the utility model. The utility model can have various changes and improvements without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed. The protection scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A coffee maker with easy maintenance, comprising a main body (b) inside which a grinding device (a) is arranged, characterized in that: The bean grinder (a) comprises a grinding bin (1), a first transmission member (2) and a fixing ring (3), the outer side of the grinding bin (1) is annularly provided with a plurality of mounting columns (4), the first transmission member (2) is annularly provided with a plurality of movable holes (5), the outer side of the fixing ring (3) is annularly provided with a plurality of fixing ears (6), the mounting columns (4) are connected with the fixing ears (6) after penetrating through the movable holes (5), and the first transmission member (2) is limited to rotate on the grinding bin (1) through cooperation of the movable holes (5) and the mounting columns (4).

2. The coffee maker of claim 1, wherein: The fixing ring (3), the first transmission member (2) and the grinding bin (1) are sequentially arranged from top to bottom.

3. The coffee maker of claim 1, wherein: One end of the mounting column (4) is provided with a plug-in part (7), the fixing ear (6) is provided with a plug-in slot (8), the plug-in part (7) is positioned and plugged in the plug-in slot (8), the bottom of the plug-in slot (8) is provided with a supporting surface (9), and the fixing ring (3) is supported on the mounting column (4) through the supporting surface (9).

4. The coffee maker of claim 3, wherein: The fixing ear (6) is provided with a first fixing hole (10), the mounting column (4) is provided with a second fixing hole (11), and a fastener is fastened and connected with the second fixing hole (11) after penetrating through the first fixing hole (10), so that the fixing ring (3) is fixedly installed on the grinding bin (1).

5. The coffee maker of claim 1, wherein: The two ends of the movable hole (5) are respectively provided with a limiting part (12), and the mounting column (4) is limited on the limiting part (12) when sliding relative to the movable hole (5).

6. The coffee maker of claim 1, wherein: The bean grinder (a) further comprises a driving member (13) and a second transmission member (14), the driving member (13) is connected with the second transmission member (14) in cooperation, the second transmission member (14) is mutually engaged with the first transmission member (2), and the driving member (13) drives the first transmission member (2) to rotate through the second transmission member (14).

7. The coffee maker of claim 6, wherein: The bean grinder (a) further comprises an upper grinding wheel assembly (15) and a lower grinding wheel (16), the grinding bin (1) is provided with a grinding cavity (17), the upper grinding wheel assembly (15) and the lower grinding wheel (16) are arranged in the grinding cavity (17), and the upper grinding wheel assembly (15) is located at the periphery of the lower grinding wheel (16), and a grinding gap (29) is arranged between the upper grinding wheel assembly (15) and the lower grinding wheel (16).

8. The coffee maker of claim 7, wherein: The bean grinder (a) further comprises an adjusting ring assembly (18), the adjusting ring assembly (18) is installed on the inner hole (28) of the first transmission member (2), the inner side of the adjusting ring assembly (18) is provided with a threaded part (19), the outer periphery of the upper grinding wheel assembly (15) is annularly provided with a plurality of lugs (20), the lugs (20) are mutually matched with the threaded part (19); the first transmission member (2) drives the adjusting ring assembly (18) to rotate, so that the adjusting ring assembly (18) drives the upper grinding wheel assembly (15) to move up and down, and then the size of the grinding gap (29) is adjusted.

9. The coffee maker of claim 7, wherein: The main body (b) comprises a shell assembly (21), an upper cover assembly (22) and a rear cover assembly (23), the upper cover assembly (22) is detachably mounted on the top of the shell assembly (21), the rear cover assembly (23) is detachably mounted on the rear of the shell assembly (21), an inner cavity (24) is formed between the shell assembly (21), the upper cover assembly (22) and the rear cover assembly (23), and the bean grinding device (a) is mounted on the inner cavity (24); a bean bin (25) communicating with the grinding cavity (17) is arranged on the top of the main body (b), and the bean bin (25) is detachably mounted on the fixing ring (3).

10. The coffee maker of claim 9, wherein: A plurality of positioning edges (26) are annularly arranged on the periphery of the fixing ring (3), the bottom of the upper cover assembly (22) is provided with annularly distributed positioning grooves (27), and the positioning edges (26) are in positioning cooperation with the positioning grooves (27).

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