CN215605014U

CN215605014U - Bean grinding device and coffee machine

Info

Publication number: CN215605014U
Application number: CN202122155182.8U
Authority: CN
Inventors: 郭建刚; 潘章博; 钟小维
Original assignee: Guangdong Xinbao Electrical Appliances Holdings Co Ltd
Current assignee: Guangdong Xinbao Electrical Appliances Holdings Co Ltd
Priority date: 2021-09-07
Filing date: 2021-09-07
Publication date: 2022-01-25
Anticipated expiration: 2031-09-07

Abstract

The utility model provides a bean grinding device and a coffee machine. On the organism was located with the detachable mode to the beans case subassembly, be equipped with the grinding sword in the beans case subassembly, the bottom of beans case subassembly is equipped with first liquid outlet, and the below of first liquid outlet is equipped with flourishing liquid container. The power component comprises a driving mechanism and a belt wheel component, the belt wheel component comprises a driving belt wheel, a driven belt wheel and a driving belt used for driving and connecting the driving belt wheel and the driven belt wheel, the driving belt wheel is arranged on an output shaft of the driving mechanism, the driven belt wheel is arranged below the bean box component and is in transmission connection with the grinding knife, and the grinding knife is driven to rotate. Above-mentioned structure can make the coffee liquid of infusing the completion directly arrange to flourishing liquid container through first liquid outlet, need not to make the product wash the convenience through pipeline with coffee liquid drainage to flourishing liquid container in, avoided coffee liquid to remain among the pipeline, improved user's use effectively and experienced.

Description

Bean grinding device and coffee machine

Technical Field

The utility model relates to the technical field of household appliances, in particular to a bean grinding device and a coffee machine.

Background

The coffee machine of present area mill beans function is that bean case subassembly is placed directly over blade subassembly mostly, and the edible material row in the bean case subassembly grinds via the blade subassembly again after grinding the chamber, grinds and carries out the coffee brewing after accomplishing, and coffee liquid rethread one section pipeline just falls the coffee container when, so coffee liquid can be probably remain in the middle of the pipeline, inconvenient washing moreover, and experience feels not good. For example, chinese patent publication No. CN106073503A discloses a bean grinding coffee machine, which specifically includes a housing, a water tank, a water pipe, a bean grinding mixing device, first to third on/off valves, a coffee pot, a grinding knife, and a power output device; the side of the casing is provided with a mounting groove. This grind beans coffee machine will discharge via a section pipeline after making coffee liquid, has difficult the washing, and the user uses the problem of experiencing the difference.

SUMMERY OF THE UTILITY MODEL

Aiming at the technical problems in the prior art, the utility model provides a bean grinding device and a coffee machine, which have the advantages of easy cleaning and convenient operation.

The embodiment of the utility model provides a bean grinding device, which comprises a machine body and also comprises:

the bean box assembly is detachably arranged on the machine body, a grinding knife is arranged in the bean box assembly, a first liquid outlet is formed in the bottom of the bean box assembly, and a liquid container is arranged below the first liquid outlet;

the power assembly comprises a driving mechanism and a belt wheel assembly, the belt wheel assembly comprises a driving belt wheel, a driven belt wheel and a transmission belt for transmission connection of the driving belt wheel and the driven belt wheel, the driving belt wheel is arranged on an output shaft of the driving mechanism, the driven belt wheel is arranged below the bean box assembly and is in transmission connection with the grinding knife for driving the grinding knife to rotate. The bean grinding device has the advantages of easy cleaning and convenient operation.

In some embodiments, the power assembly further includes a first rotating shaft, the driven pulley is mounted on the first rotating shaft, the grinding tool is mounted on a second rotating shaft, the second rotating shaft penetrates through the bottom of the bean box assembly and is connected with the first rotating shaft through a connector, so that the driven pulley drives the first rotating shaft, the second rotating shaft and the grinding tool to rotate. The structure enables the driven belt wheel, the first rotating shaft, the second rotating shaft, the connector and the grinding knife to be stably driven, so that the grinding knife is stably driven to rotate through the power assembly.

In some embodiments, the bean grinding device further comprises a mounting rack, the power assembly is mounted on the mounting rack, a locking member is arranged on a portion, corresponding to the bean box assembly, of the mounting rack, a hook is formed by downward extension of the bottom of the bean box assembly, and the locking member can be locked or unlocked with the hook in a sliding mode, so that the bean box assembly can be locked on the mounting rack or can be moved away from the mounting rack. Above-mentioned structure is convenient for dismouting bean case subassembly, and the user of being convenient for uses.

In some embodiments, the mounting frame is provided with a second liquid outlet which is vertically and correspondingly arranged with the first liquid outlet, the second liquid outlet is provided with a piston in a sliding manner, and the upper part of the liquid container is provided with an acting component which can push the piston to open the second liquid outlet. Above-mentioned structure makes liquid container place when second liquid outlet below, and the second liquid outlet can directly open discharge liquid, the user operation of being convenient for.

In some embodiments, the driving mechanism is slidably disposed on the mounting frame to adjust the spacing between the driving pulley and the driven pulley to tension the transmission belt, so that the transmission belt maintains a proper tightness and the transmission effect of the pulley assembly is ensured.

In some embodiments, the axial direction of the driving pulley is parallel to the liquid outlet direction of the first liquid outlet. The structure is reasonable in design and stable in transmission.

In some embodiments, the bean box assembly comprises an outer box body, an inner box body arranged in the outer box body, and a food basket arranged in the inner box body, the grinding cutter is arranged in the food basket, the first liquid outlet penetrates through the bottom of the inner box body and the bottom of the outer box body, and the driven pulley is arranged below the bottom of the outer box body. The structure is beneficial to the user to clean one by one and is convenient to operate.

In some embodiments, the bean box assembly further comprises a box cover pivoted on the outer box body and a shower head arranged on the inner side of the box cover, and the shower head is positioned above the grinding knife when the box cover is covered on the outer box body. The structure enables water sprayed by the shower head to be directly sprayed to the coffee powder, so that the aim of better brewing the coffee powder is fulfilled.

The embodiment of the utility model provides a coffee machine which comprises the bean grinding device. The coffee machine has the advantages of easy cleaning and convenient operation.

In some embodiments, the coffee machine further comprises a water tank arranged in the machine body, a heating pipe communicated with a water outlet of the water tank, and a water outlet pipe communicated with the heating pipe, wherein the water outlet pipe is used for supplying water into the bean box assembly, and one end of the heating pipe, which is close to the water outlet of the water tank, is provided with a one-way valve;

the water tank is arranged on the side of the bean box assembly, and the driving mechanism is positioned below the water tank. The structure is reasonable in design, compact in structure and small in occupied space of products.

Compared with the prior art, the embodiment of the utility model has the beneficial effects that: according to the utility model, the first liquid outlet of the bean box assembly is arranged above the liquid container, only the driven belt pulley is arranged between the bottom of the bean box assembly and the liquid container, the driving mechanism is not arranged between the bean box assembly and the liquid container, so that the distance between the bean box assembly and the liquid container is reduced, the brewed coffee liquid can be directly discharged to the liquid container through the first liquid outlet, and the coffee liquid does not need to be drained into the liquid container through a pipeline, so that the product is convenient to clean, the coffee liquid is prevented from remaining in the pipeline, and the use experience of a user is effectively improved.

Drawings

In the drawings, which are not necessarily drawn to scale, like reference numerals may describe similar components in different views. Like reference numerals having letter suffixes or different letter suffixes may represent different instances of similar components. The drawings illustrate various embodiments generally by way of example and not by way of limitation, and together with the description and claims serve to explain the disclosed embodiments. The same reference numbers will be used throughout the drawings to refer to the same or like parts, where appropriate. Such embodiments are illustrative, and are not intended to be exhaustive or exclusive embodiments of the present apparatus or method.

FIG. 1 is a schematic structural view of a bean grinding apparatus according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view of a bean grinding apparatus according to an embodiment of the present invention;

FIG. 3 is an exploded view of a bean grinding apparatus according to an embodiment of the present invention;

FIG. 4 is an exploded view of a bean box assembly of the bean grinding apparatus according to the embodiment of the present invention

Fig. 5 is a sectional view of a coffee maker according to an embodiment of the present invention.

The members denoted by reference numerals in the drawings:

100-bean grinding device; 200-a coffee machine; 1-body; 11-grinding the knife; 2-a bean box assembly; 21-a first liquid outlet; 22-a hook; 23-an outer box body; 24-an inner box body; 25-food basket; 26-a box cover; 27-a shower head; 3-liquid container; 4-a power assembly; 41-a first shaft; 42-a second shaft; 5-a drive mechanism; 6-a pulley assembly; 61-driving pulley; 62-a driven pulley; 63-a transmission belt; 7-a connector; 8-a mounting frame; 81-a locking member; 82-a second outlet port; 83-a piston; 201-a water tank; 202-a heating tube; 203-water outlet pipe; 204-one-way valve.

Detailed Description

In order to make the technical solutions of the present invention better understood, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. The following detailed description of embodiments of the utility model is provided in connection with the accompanying drawings and the detailed description of embodiments of the utility model, but is not intended to limit the utility model.

The use of "first," "second," and similar terms in the present application do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element preceding the word covers the element listed after the word, and does not exclude the possibility that other elements are also covered. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.

In the present invention, when it is described that a specific device is located between a first device and a second device, there may or may not be an intervening device between the specific device and the first device or the second device. When a particular device is described as being coupled to other devices, that particular device may be directly coupled to the other devices without intervening devices or may be directly coupled to the other devices with intervening devices.

All terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs unless specifically defined otherwise. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.

An embodiment of the present invention provides a bean grinding apparatus 100, as shown in fig. 1 to 4, the bean grinding apparatus 100 includes a machine body 1, a bean box assembly 2, and a power assembly 4. On organism 1 was located with the detachable mode to beans case subassembly 2, was equipped with grinding sword 11 in the beans case subassembly 2, and the bottom of beans case subassembly 2 is equipped with first liquid outlet 21, and the below of first liquid outlet 21 is equipped with flourishing liquid container 3. The power assembly 4 comprises a driving mechanism 5 and a belt wheel assembly 6, the driving mechanism 5 can be a motor and the like which can provide power for the belt wheel assembly 6, the belt wheel assembly 6 comprises a driving belt wheel 61, a driven belt wheel 62 and a transmission belt 63 for driving and connecting the driving belt wheel 61 and the driven belt wheel 62, the driving belt wheel 61 is arranged on an output shaft of the driving mechanism 5, the driven belt wheel 62 is arranged below the bean box assembly 2 and is in transmission connection with the grinding knife 11 for driving the grinding knife 11 to rotate. The above-mentioned belt wheel transmission mode can implement regulation of transmission ratio, and under the condition of that the driving mechanism 5 can output identical power, it can implement higher rotation speed.

Specifically, the bean box assembly 2 may be used to contain bean food material, and the grinding knife 11 may rotatably grind the bean food material in the bean box assembly 2. In the following, the bean material is coffee bean, the ground material is coffee powder, and the brewed liquid is coffee liquid, but it should be noted that the bean grinding apparatus 100 can be used for grinding any bean material, not limited to coffee bean.

Specifically, a cavity for accommodating the bean box assembly 2 may be formed on the machine body 1, and the shape of the cavity is adapted to the outer contour of the bean box assembly 2, so as to make the structure compact and reasonable.

Specifically, with continuing reference to fig. 1 and 2, the end surface of the driving pulley 61, the end surface of the driving belt 63, and the end surface of the driven pulley 62 are all parallel, the driven pulley 62 is located below the bean box assembly 2, and the driving pulley 61 and the driving mechanism 5 connected to the driving pulley 61 are located on the side of the bean box assembly 2, so as to shorten the distance between the bean box assembly 2 and the liquid container 3, thereby directly discharging the brewed coffee liquid.

Specifically, the first liquid outlet 21 may be provided with a liquid outlet switch, and the liquid outlet switch may be configured to switch to an open state after receiving a brewing completion signal and maintain a closed state all the time when not receiving the brewing completion signal.

According to the utility model, the first liquid outlet 21 of the bean box assembly 2 is arranged above the liquid container 3, only the driven belt pulley 62 is arranged between the bottom of the bean box assembly 2 and the liquid container 3, and the driving mechanism 5 is not arranged between the bean box assembly 2 and the liquid container 3, so that the distance between the bean box assembly 2 and the liquid container 3 is reduced, the brewed coffee liquid can be directly discharged to the liquid container 3 through the first liquid outlet 21, and the coffee liquid does not need to be drained into the liquid container 3 through a pipeline, so that the product is convenient to clean, the coffee liquid is prevented from remaining in the pipeline, and the use experience of a user is effectively improved.

In some embodiments, as shown in fig. 2, the power assembly 4 further includes a first rotating shaft 41, a driven pulley 62 is mounted on the first rotating shaft 41, the grinding blade 11 is mounted on a second rotating shaft 42, and the second rotating shaft 42 penetrates through the bottom of the bean box assembly 2 and is connected to the first rotating shaft 41 through a connector 7, so that the driven pulley 62 drives the first rotating shaft 41, the second rotating shaft 42 and the grinding blade 11 to rotate. The structure enables the driven belt wheel 62, the first rotating shaft 41, the second rotating shaft 42, the connector 7 and the grinding knife 11 to be stably driven, so that the grinding knife 11 is stably driven to rotate through the power assembly 4.

Specifically, the axis of the driven pulley 62, the axis of the first rotating shaft 41, the axis of the second rotating shaft 42, the axis of the connector 7, and the axis of the grinding blade 11 may all be collinear to stabilize the transmission.

Specifically, a plurality of limiting portions may be convexly disposed on one side of the driven pulley 62 close to the connector 7, and the limiting portions interact with one side of the connector 7 close to the driven pulley 62, so that the driven pulley 62 can drive the connector 7 to rotate.

In some embodiments, as shown in fig. 2 and 3, the bean grinding apparatus 100 further includes a mounting frame 8, the power assembly 4 is mounted on the mounting frame 8, a locking member 81 is disposed on a portion of the mounting frame 8 corresponding to the bean box assembly 2, a bottom of the bean box assembly 2 extends downward to form a hook 22, and the locking member 81 can be slidably locked with or unlocked from the hook 22, so that the bean box assembly 2 can be locked to or removed from the mounting frame 8. The bean box component 2 is convenient to disassemble and assemble by the structure, and is convenient for users to use.

Specifically, the mounting bracket 8 may be flat and disposed below the bean box assembly 2, so that the bean box assembly 2 and the liquid container 3 can be as close as possible, and the coffee liquid discharged from the first liquid outlet 21 can directly flow into the liquid container 3.

Specifically, the hook 22 extends in a first direction to form a first hook, the locking member 81 has a second hook extending in a second direction, and the first hook and the second hook can abut against each other to lock the bean box assembly 2 or move away from each other to unlock the bean box assembly 2, wherein the first direction and the second direction are opposite directions. As shown in fig. 2, the first direction shown in the drawing is a leftward direction, and the second direction is a rightward direction.

In some embodiments, as shown in fig. 2, the mounting frame 8 is provided with a second liquid outlet 82 disposed corresponding to the first liquid outlet 21 up and down, the second liquid outlet 82 is slidably provided with a piston 83, and the upper portion of the liquid container 3 is provided with an acting member capable of pushing against the piston 83 to open the second liquid outlet 82. Above-mentioned structure makes liquid container 3 place when second liquid outlet 82 below, and discharge liquid can directly be opened to second liquid outlet 82, the user operation of being convenient for.

Specifically, the lower surface of first liquid outlet 21 can be close to the setting with the upper surface of second liquid outlet 82 mutually, or the laminating sets up, and this application does not do specifically to limit to this, can reach and shorten the distance between first liquid outlet 21 and the second liquid outlet 82 as far as possible to reduce the dwell time of coffee, avoid the coffee to remain can.

In some embodiments, the driving mechanism 5 is slidably disposed on the mounting frame 8 to adjust the spacing between the driving pulley 61 and the driven pulley 62 to tension the belt 63, so as to maintain the proper tightness of the belt 63 and ensure a good transmission effect of the pulley assembly 6.

Specifically, the mounting frame 8 may be provided with a long strip-shaped chute, and the driving mechanism 5 may be mounted in the chute through a connecting member, so that the driving mechanism 5 can slide along the chute, and when the driving belt 63 slides to be tightened, the connecting member may be tightened to fix the driving mechanism 5.

In some embodiments, the axial direction of the driving pulley 61 is parallel to the liquid outlet direction of the first liquid outlet 21. As shown in fig. 2, the liquid outlet direction of the first liquid outlet 21 may be a vertical direction. The axial direction of the first rotating shaft 41 and the axial direction of the second rotating shaft 42 are both parallel to the liquid outlet direction of the first liquid outlet 21. The structure is reasonable in design and stable in transmission.

In some embodiments, as shown in fig. 2 and 3, the bean box assembly 2 includes an outer box 23, an inner box 24 disposed in the outer box 23, and a food basket 25 disposed in the inner box 24, the milling cutter 11 is disposed in the food basket 25, the first liquid outlet 21 penetrates through the bottom of the inner box 24 and the bottom of the outer box 23, and the driven pulley 62 is disposed below the bottom of the outer box 23. The structure is beneficial to the user to clean one by one and is convenient to operate.

Specifically, the inner casing 24 is detachably disposed in the outer casing 23, and the bean material is rotatably ground in the food basket 25 by the grinding blade 11.

In some embodiments, as shown in fig. 2, the bean box assembly 2 further includes a cover 26 pivotally connected to the outer case 23 and a shower 27 disposed inside the cover 26, wherein the shower 27 is located above the grinding blade 11 when the cover 26 is covered on the outer case 23. The structure enables water sprayed by the shower head 27 to be directly sprayed to the coffee powder, so as to achieve the purpose of better brewing the coffee powder.

Specifically, the pivot joint between the outer box 23 and the box cover 26 may be provided with a detection switch, when the box cover 26 is opened, the control signal may be sent to the shower head 27 in time to stop the spraying of the shower head 27, and when the box cover 26 is closed, the control signal that may be opened may be sent to the shower head 27.

An embodiment of the present invention further provides a coffee maker 200, as shown in fig. 5, the coffee maker 200 includes the above-mentioned bean grinding apparatus 100. Adopt this coffee machine 200 of bean grinding device 100 to locate flourishing liquid container 3's top through the first liquid outlet 21 with beans case subassembly 2, and only have from driven pulleys 62 between beans case subassembly 2's bottom and the flourishing liquid container 3, actuating mechanism 5 is not located beans case subassembly 2 and flourishing liquid container 3 between, make the distance between beans case subassembly 2 and the flourishing liquid container 3 reduce, the coffee liquid of infusing the completion can be directly arranged to flourishing liquid container 3 via first liquid outlet 21, need not to drain coffee liquid to flourishing liquid container 3 in through the pipeline, it is convenient to make the product wash, avoided coffee liquid to remain among the pipeline, user experience has been improved effectively.

In some embodiments, as shown in fig. 5, the coffee maker 200 further comprises a water tank 201 disposed in the machine body 1, a heating tube 202 communicated with a water outlet of the water tank 201, and a water outlet tube 203 communicated with the heating tube 202, wherein the water outlet tube 203 is used for supplying water into the bean box assembly 2, and one end of the heating tube 202 close to the water outlet of the water tank 201 is provided with a one-way valve 204; the water tank 201 is arranged on the side of the bean box assembly 2, and the driving mechanism 5 is positioned below the water tank 201. The structure is reasonable in design, compact in structure and small in occupied space of products.

Specifically, the water in the water tank 201 enters the heating tube 202 for heating, at this time, the check valve 204 enables the water to enter the heating tube 202 only from the water tank 201, and in the heating process, because the water in the pipeline and the air are heated and expanded, and the water cannot flow back into the heating tube 202 under the action of the check valve 204, a pressure difference is generated, so that the water in the heating tube 202 flows to the water outlet pipe 203, flows out from the water outlet pipe 203 and is then discharged to the shower head 27, and the water discharged by the shower head 27 is uniformly sprinkled to the coffee powder for brewing. The brewed coffee liquid is directly discharged into the liquid container 3 through the first liquid outlet 21.

Specifically, above-mentioned actuating mechanism 5 is located between water tank 201 and heating tube 202, can enough guarantee that the interval between bean box subassembly 2 and the flourishing liquid container 3 is less, can also rational utilization structural space for the structure is more reasonable.

Moreover, although exemplary embodiments have been described herein, the scope thereof includes any and all embodiments based on the present invention with equivalent elements, modifications, omissions, combinations (e.g., of various embodiments across), adaptations or alterations. The elements of the claims are to be interpreted broadly based on the language employed in the claims and not limited to examples described in the present specification or during the prosecution of the application, which examples are to be construed as non-exclusive. It is intended, therefore, that the specification and examples be considered as exemplary only, with a true scope and spirit being indicated by the following claims and their full scope of equivalents.

The above description is intended to be illustrative and not restrictive. For example, the above-described examples (or one or more versions thereof) may be used in combination with each other. For example, other embodiments may be used by those of ordinary skill in the art upon reading the above description. In addition, in the above-described embodiments, various features may be grouped together to streamline the disclosure. This should not be interpreted as an intention that a disclosed feature not claimed is essential to any claim. Rather, inventive subject matter may lie in less than all features of a particular disclosed embodiment. Thus, the following claims are hereby incorporated into the detailed description as examples or embodiments, with each claim standing on its own as a separate embodiment, and it is contemplated that these embodiments may be combined with each other in various combinations or permutations. The scope of the utility model should be determined with reference to the appended claims, along with the full scope of equivalents to which such claims are entitled.

The above embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, and the scope of the present invention is defined by the claims. Various modifications and equivalents may be made by those skilled in the art within the spirit and scope of the present invention, and such modifications and equivalents should also be considered as falling within the scope of the present invention.

Claims

1. The utility model provides a grind beans device, includes the organism, its characterized in that still includes:

the power assembly comprises a driving mechanism and a belt wheel assembly, the belt wheel assembly comprises a driving belt wheel, a driven belt wheel and a transmission belt for transmission connection of the driving belt wheel and the driven belt wheel, the driving belt wheel is arranged on an output shaft of the driving mechanism, the driven belt wheel is arranged below the bean box assembly and is in transmission connection with the grinding knife for driving the grinding knife to rotate.

2. The bean grinding apparatus of claim 1, wherein the power assembly further comprises a first shaft, the driven pulley is mounted on the first shaft, the grinding blade is mounted on a second shaft, and the second shaft passes through the bottom of the bean box assembly and is connected to the first shaft through a connector, so that the first shaft, the second shaft and the grinding blade are driven by the driven pulley to rotate.

3. The bean grinding device of claim 1, further comprising a mounting frame, wherein the power assembly is mounted on the mounting frame, a locking member is arranged on a portion of the mounting frame corresponding to the bean box assembly, a hook is formed by downward extension of the bottom of the bean box assembly, and the locking member can be slidably locked with or unlocked from the hook, so that the bean box assembly can be locked on or removed from the mounting frame.

4. The bean grinding device according to claim 3, wherein a second liquid outlet corresponding to the first liquid outlet is arranged on the mounting frame, a piston is slidably arranged on the second liquid outlet, and an action member capable of pushing the piston to open the second liquid outlet is arranged on the upper portion of the liquid container.

5. The bean grinding apparatus of claim 3, wherein the drive mechanism is slidably disposed on the mounting bracket to adjust the spacing between the drive pulley and the driven pulley to tension the belt.

6. The bean grinding apparatus according to claim 1, wherein an axial direction of the driving pulley is parallel to a liquid discharge direction of the first liquid outlet.

7. The bean grinding device according to claim 1, wherein the bean box assembly comprises an outer box body, an inner box body arranged in the outer box body and a food basket arranged in the inner box body, the grinding cutter is arranged in the food basket, the first liquid outlet penetrates through the bottom of the inner box body and the bottom of the outer box body, and the driven belt wheel is arranged below the bottom of the outer box body.

8. The bean grinding apparatus of claim 7, wherein the bean box assembly further comprises a box cover pivotally attached to the outer housing and a shower head disposed inside the box cover, the shower head being positioned above the grinding blade when the box cover is closed over the outer housing.

9. Coffee machine, characterized in that it comprises a bean grinding device according to any one of claims 1-8.

10. The coffee machine of claim 9, further comprising a water tank disposed in the machine body, a heating tube communicated with a water outlet of the water tank, and a water outlet tube communicated with the heating tube, wherein the water outlet tube is used for supplying water into the bean box assembly, and a one-way valve is disposed at one end of the heating tube close to the water outlet of the water tank;

the water tank is arranged on the side of the bean box assembly, and the driving mechanism is positioned below the water tank.