Weighing device, bean grinder and coffee machine

Abstract

The utility model relates to the technical field of coffee making equipment, and discloses a weighing device, a bean grinder and a coffee machine. The weighing device comprises a material receiving container, a door plate assembly, a driving piece and a weighing mechanism. A discharge hole is formed in the bottom of the receiving container; the door plate assembly is movably connected with the bottom of the material receiving container and has a first state for shielding the discharge port and a second state for opening the discharge port; the driving piece is arranged on the material receiving container and drives the door plate assembly to be switched between the first state and the second state. The weighing mechanism is arranged at the bottom of the material receiving container, and the weight sensor is used for detecting the weight of materials in the material receiving container when the door plate assembly is in the first state. The weighing device can weigh the materials when the door plate assembly is in the first state and discharge the materials when the door plate assembly is in the second state, automatic discharge of the materials is achieved, the weighing process of the materials is simplified, and the coffee blending efficiency is effectively improved when coffee is blended.

Description

Technical Field

[0001] The utility model relates to the technical field of coffee making equipment, in particular to a weighing device, a bean grinder and a coffee machine. Background Art

[0002] As people's consumption level improves, more and more people choose coffee drinks that are blended, ground and brewed on site, rather than pre-made coffee powder. Coffee drinks that are blended on site are made by mixing coffee beans and water in a specific ratio to produce different styles of coffee to meet people's needs. In the current blending process, the coffee bean weighing process is usually done by the barista manually scooping the coffee beans and putting them on an electronic scale for weighing. After weighing, the coffee beans are scooped out for coffee blending. The operation process is cumbersome, which increases the time of coffee blending and reduces the efficiency of coffee blending. Utility Model Content

[0003] In view of this, the utility model provides a weighing device, a bean grinder and a coffee machine to solve the problem that the existing coffee beans need to be weighed and the barista needs to scoop them out manually, which is cumbersome and reduces the coffee preparation efficiency.

[0004] In a first aspect, the utility model provides a weighing device, comprising:

[0005] A material receiving container, the bottom of which is provided with a material discharge port;

[0006] A door panel assembly is movably connected to the bottom of the receiving container, and the door panel assembly has a first state of shielding the discharge port and a second state of opening the discharge port;

[0007] A driving member, disposed on the material receiving container, wherein the driving member drives the door panel assembly to switch between the first state or the second state;

[0008] A weighing mechanism is arranged at the bottom of the material receiving container, and the weight sensor is used to detect the weight of the material in the material receiving container when the door panel assembly is in the first state.

[0009] Beneficial effects: The driving member can keep the door panel assembly in the first state, and the door panel assembly can cover the discharge port in the first state. At this time, the material (such as coffee beans) added to the material receiving container will fall to the discharge port due to gravity and be caught by the door panel assembly, and will not fall from the discharge port. The weighing mechanism will weigh the material in the material receiving container. When the material in the material receiving container reaches the required weight, the driving mechanism will control the door panel to switch from the first state to the second state. At this time, the discharge port is opened, and the material in the material receiving container can be automatically discharged from the discharge port under the action of gravity, thereby realizing automatic discharge of the material, simplifying the material weighing process, and effectively improving the coffee mixing efficiency when mixing coffee.

[0010] In an optional embodiment, the door panel assembly includes a first door panel and a second door panel, and the first door panel and / or the second door panel are rotatably connected to the bottom of the material receiving container. In the first state, the first door panel and the second door panel are closed and cover the discharge port, and in the second state, the first door panel and the second door panel are separated and open the discharge port.

[0011] Beneficial effects: The connection method between the first door panel, the second door panel and the material receiving container is simple and reliable, which simplifies the structure of the door panel assembly. The door assembly can be switched between the first state and the second state by simply rotating the first door panel and / or the second door panel.

[0012] In an optional embodiment, one end of the first door panel and the second door panel is a connecting end, and the other end is a free end, and the connecting ends of the first door panel and the second door panel are rotatably connected to the bottom of the material receiving container.

[0013] Beneficial effects: In the first state, the driving member drives at least one of the first door panel and the second door panel to rotate in a direction close to the other, so that the first door panel abuts against the opposite side of the second door panel, thereby blocking the discharge port and preventing materials from being discharged from the discharge port; in the second state, the driving member drives at least one of the first door panel and the second door panel to rotate in a direction away from the other, thereby opening the discharge port, so that materials can be discharged from the discharge port, and one end of the first door panel and the second door panel is used as a transfer end, which fully utilizes the length of the first door panel and the second door panel, reduces the driving difficulty, and is conducive to simplifying the structure and control process.

[0014] In an optional embodiment, a first gear is provided at the connecting end of the first door panel, and a second gear is provided at the connecting end of the second door panel. The axes of the first gear and the second gear are parallel, the first gear is meshed with the second gear, and the driving end of the driving member drives the first gear or the second gear to rotate.

[0015] Beneficial effect: The setting of the first gear and the second gear enables the driving member to be connected to only one of the first gear or the second gear to simultaneously drive the first door panel and the second door panel to rotate, thereby simplifying the connection structure between the driving member and the first door panel and the second door panel and reducing the production cost of the weighing device.

[0016] In an optional implementation, the first gear and / or the second gear is an incomplete gear.

[0017] Beneficial effect: A limit can be formed between the first gear and the second gear to prevent the first door panel and the second door panel from rotating at an excessively large angle.

[0018] In an optional embodiment, a limiting member is further included, wherein the limiting member is connected to the bottom of the material receiving container, a limiting space is formed between the limiting member and the material receiving container, and the door panel assembly is inserted into the limiting space.

[0019] Beneficial effects: On the one hand, the limiting space can further limit the opening angle between the first door panel and the second door panel to avoid the opening angle between the first door panel and the second door panel being too large; on the other hand, when the weight of the material being weighed is large, it may compress the first door panel and / or the second door panel, causing the first door panel and / or the second door panel to deform. The limiting member can support the first door panel and / or the second door panel upward to avoid deformation damage, ensure that the first door panel and the second door panel can completely cover the discharge port, and improve the reliability of the structure.

[0020] In an optional embodiment, both ends of the limiting member are connected to the bottom of the material receiving container, the middle portion of the limiting member has a limiting groove formed in a direction away from the material receiving container, and the limiting space is formed between the limiting groove and the material receiving container.

[0021] Beneficial effects: The structure of the limiting member is simple, and the limiting space formed between the limiting groove and the material receiving container can limit the rotation angle of the first door panel and / or the second door panel while preventing the first door panel and / or the second door panel from being deformed.

[0022] In an optional embodiment, the material receiving container includes a main body and a support plate, the support plate is arranged at the bottom of the main body, the support plate is provided with the discharge port, the inner cavity of the main body is divided into a first accommodating cavity and a second accommodating cavity, the first accommodating cavity is connected to the discharge port, the driving member is arranged in the second accommodating cavity, and the driving end of the driving member passes through the support plate and is connected to the door panel assembly.

[0023] Beneficial effects: The first accommodating chamber of the main body is used to accommodate poured materials (such as coffee beans). The support plate arranged at the bottom of the material receiving container, on the one hand, closes the second accommodating chamber, so that the driving member can be installed in the second accommodating chamber, compacting the structure of the weighing device and making the appearance of the weighing device more beautiful and tidy; on the other hand, the discharge port on the support plate is connected with the first accommodating chamber, so that when the door panel assembly is in the second state, the material in the first accommodating chamber can fall out of the material receiving container through the discharge port.

[0024] In an optional embodiment, the inner wall of at least one side of the first accommodating cavity is inclined.

[0025] Beneficial effect: The inclined inner wall in the first accommodating chamber can make the material (such as coffee beans) move toward the discharge port more easily under the action of gravity and be discharged from the discharge port, thereby avoiding the problem of beans being stuck in the first accommodating chamber.

[0026] In a second aspect, the utility model further provides a bean grinder, comprising a bean grinding device and the above-mentioned weighing device, characterized in that the material receiving container is connected to the bean grinding device.

[0027] Beneficial effect: by connecting the material receiving container with the bean grinding device, the material weighed in the weighing device will be automatically discharged from the discharge port to the bean grinder under the action of gravity, and the bean grinder grinds the fallen material (such as coffee beans), or the material ground by the bean grinder (such as coffee powder) falls into the material receiving container under the action of gravity for weighing, thereby realizing automatic quantitative discharge and grinding of the material, reducing the difficulty of coffee preparation and improving the efficiency of coffee preparation.

[0028] In a third aspect, the utility model further provides a coffee machine, comprising a brewing device and the above-mentioned weighing device, characterized in that the material receiving container is connected to the brewing device.

[0029] Beneficial effect: by connecting the material receiving container with the brewing device, the driving component drives the door panel assembly to remain in the first state to cover the discharge port. At this time, the material (such as coffee beans) added to the material receiving container will fall to the discharge port due to gravity and be caught by the door panel assembly, and will not fall from the discharge port. The weighing mechanism will weigh the material in the material receiving container. When the weighing device measures that the weight of the material reaches the required weight, the driving component drives the door panel assembly to switch to the second state, and the door panel assembly opens the discharge port. The weighed material will be automatically discharged from the discharge port to the brewing device for brewing coffee under the action of gravity, thereby realizing automatic quantitative discharge of the material, reducing the difficulty of coffee preparation, and improving the efficiency of coffee preparation. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0031] Figure 1 This is a structural schematic diagram of a weighing device according to an embodiment of the utility model;

[0032] Figure 2 A bottom view of a weighing device according to an embodiment of the utility model in a first state;

[0033] Figure 3 A bottom view of a weighing device according to an embodiment of the utility model in a second state;

[0034] Figure 4It is a cross-sectional view of a weighing device according to an embodiment of the utility model.

[0035] Description of reference numerals:

[0036] 1. receiving container; 11. main body; 111. first accommodating chamber; 112. second accommodating chamber; 113. feeding port; 12. supporting plate; 121. discharging port;

[0037] 2. Door panel assembly; 21. First door panel; 211. First gear; 22. Second door panel; 221. Second gear;

[0038] 3. Driving parts;

[0039] 4. Weighing mechanism;

[0040] 5. Limiting parts. DETAILED DESCRIPTION

[0041] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0042] Combine the following Figures 1 to 4 , describing the embodiments of the weighing device, bean grinder and coffee machine of the utility model.

[0043] According to an embodiment of the utility model, on the one hand, a weighing device is provided, including a material receiving container 1, a door panel assembly 2, a driving member 3 and a weighing mechanism 4. The material receiving container 1 is provided with a discharge port 121 at its bottom; the door panel assembly 2 is movably connected to the bottom of the material receiving container 1, and the door panel assembly 2 has a first state of shielding the discharge port 121 and a second state of opening the discharge port 121; the driving member 3 is provided on the material receiving container 1, and the driving member 3 drives the door panel assembly 2 to switch between the first state and the second state; the weighing mechanism 4 is provided on the bottom of the material receiving container 1, and the weight sensor is used to detect the weight of the material in the material receiving container 1 when the door panel assembly 2 is in the first state.

[0044] The driving member 3 provided by the utility model can keep the door panel assembly 2 in the first state. The door panel assembly 2 can cover the discharge port 121 in the first state. At this time, the material (such as coffee beans) added to the material receiving container 1 will fall to the discharge port 121 due to gravity and be caught by the door panel assembly 2, and will not fall from the discharge port 121. The weighing mechanism 4 will weigh the weight of the material in the material receiving container 1. When the material in the material receiving container 1 reaches the required weight, the driving mechanism will control the door panel to switch from the first state to the second state. At this time, the discharge port 121 is opened, and the material in the material receiving container 1 can be automatically discharged from the discharge port 121 under the action of gravity, thereby realizing automatic discharge of the material, simplifying the weighing process of the material, and effectively improving the coffee blending efficiency when coffee is blended.

[0045] Specifically, the material receiving container 1 includes a main body 11 and a support plate 12, the support plate 12 is arranged at the bottom of the main body 11, and the support plate 12 is provided with a discharge port 121. The inner cavity of the main body 11 is divided into a first accommodating cavity 111 and a second accommodating cavity 112, the first accommodating cavity 111 is connected to the discharge port 121, the driving member 3 is arranged in the second accommodating cavity 112, and the driving end of the driving member 3 passes through the support plate 12 and is connected to the door panel assembly 2.

[0046] The first accommodating chamber 111 of the main body 11 is used to receive the poured material (such as coffee beans). The support plate 12 arranged at the bottom of the material receiving container 1, on the one hand, closes the second accommodating chamber 112, so that the driving member 3 can be installed in the second accommodating chamber 112, which compacts the structure of the weighing device and makes the appearance of the weighing device more beautiful and neat; on the other hand, the discharge port 121 on the support plate 12 is connected to the first accommodating chamber 111, so that when the door panel assembly 2 is in the second state, the material in the first accommodating chamber 111 can fall out of the material receiving container 1 through the discharge port 121.

[0047] Specifically, the receiving container 1 is provided with a feed port 113, which is rectangular and has an area larger than that of the discharge port 121, so as to facilitate adding materials into the first accommodating cavity 111; the bottom surface of the receiving container 1 is a plane, so as to facilitate setting of structures such as a weighing mechanism 4.

[0048] In this embodiment, the driving member 3 adopts a servo motor, which can accurately control the state of the door panel assembly 2. In other embodiments, the driving member 3 can also adopt a stepping motor.

[0049] Furthermore, the inner wall of at least one side of the first accommodating chamber 111 is inclined. The inclined inner wall can make it easier for materials (such as coffee beans) to move toward the discharge port 121 under the action of gravity and be discharged from the discharge port 121, thereby avoiding the problem of beans being stuck in the first accommodating chamber 111.

[0050] Furthermore, the door panel assembly 2 includes a first door panel 21 and a second door panel 22. The present invention does not limit the connection method between the first door panel 21, the second door panel 22 and the material receiving container 1. In this embodiment, the first door panel 21 and / or the second door panel 22 are rotatably connected to the bottom of the material receiving container 1. In the first state, the first door panel 21 and the second door panel 22 are closed and block the material outlet 121. In the second state, the first door panel 21 and the second door panel 22 are separated and open the material outlet 121. This connection method between the first door panel 21, the second door panel 22 and the material receiving container 1 is simple and reliable, and simplifies the structure of the door panel assembly 2. The conversion of the door assembly between the first state and the second state can be realized by rotating the first door panel 21 and / or the second door panel 22.

[0051] Specifically, the first door panel 21 and the second door panel 22 are rotatably connected to the support plate 12, and the driving member 3 located in the second accommodating cavity 112 can pass through the support plate 12 and connect to the first door panel 21 and / or the second door panel 22. The connection method is simple and simplifies the structure of the weighing device.

[0052] In other embodiments, the first door panel 21 and the second door panel 22 may also be slidably connected to the material receiving container 1 via a guide rail assembly, and the first door panel 21 and / or the second door panel 22 may be driven to slide along the guide rail assembly via the driving member 3, thereby realizing the conversion of the first door and the second door panel 22 between the first state and the second state.

[0053] Specifically, one end of the first door panel 21 and the second door panel 22 is a connection end, and the other end is a free end. The connection end of the first door panel 21 and the second door panel 22 is rotatably connected to the bottom of the receiving container 1. In the first state, the driving member 3 drives one of the first door panel 21 and / or the second door panel 22 to rotate in a direction close to the other, so that the first door panel 21 and the opposite side of the second door panel 22 abut against each other, thereby blocking the discharge port 121 and preventing the material from being discharged from the discharge port 121; in the second state, the driving member 3 drives one of the first door panel 21 and / or the second door panel 22 to rotate in a direction away from the other, thereby opening the discharge port 121 and allowing the material to be discharged from the discharge port 121.

[0054] Specifically, the width dimension of the free ends of the first door panel 21 and the second door panel 22 is greater than the width dimension of the connecting end, ensuring that the first door panel 21 and the second door panel 22 can completely cover the discharge port 121 in the first state, and can also reduce the weight of the first door panel 21 and the second door panel 22 as much as possible to avoid the free ends of the first door panel 21 and the second door panel 22 moving downward due to gravity, thereby causing the first door panel 21 and the second door panel 22 to deform, thereby failing to completely cover the discharge port 121.

[0055] Specifically, the outer sides of the free ends of the first door panel 21 and the second door panel 22 are arc-shaped structures, so that the first door panel 21 and the second door panel 22 will not exceed the boundary of the support plate 12 when in the second state, thereby preventing the first door panel 21 and the second door panel 22 from affecting other equipment and avoiding structural interference.

[0056] In this embodiment, the driving member 3 drives one of the first door panel 21 and the second door panel 22 to rotate, thereby driving the other one to rotate, so as to realize the conversion of the first door panel 21 and the second door panel 22 between the first state and the second state.

[0057] In other embodiments, as needed, the driving member 3 may also drive the first door panel 21 and the second door panel 22 to rotate respectively, so as to realize the conversion of the first door and the second door panel 22 between the first state and the second state.

[0058] Furthermore, a first gear 211 is provided at the connection end of the first door panel 21, and a second gear 221 is provided at the connection end of the second door panel 22. The axes of the first gear 211 and the second gear 221 are parallel, the first gear 211 meshes with the second gear 221, and the driving end of the driving member 3 drives the first gear 211 or the second gear 221 to rotate. The arrangement of the first gear 211 and the second gear 221 allows the driving member 3 to drive the first door panel 21 and the second door panel 22 to rotate simultaneously by only connecting to one of the first gear 211 and the second gear 221, thereby simplifying the connection structure between the driving member 3 and the first door panel 21 and the second door panel 22, and reducing the production cost of the weighing device.

[0059] The utility model does not limit the specific types of the first gear 211 and the second gear 221. In the present embodiment, the first gear 211 and / or the second gear 221 are incomplete gears, so that a structural limit can be formed between the first gear 211 and the second gear 221, that is, when the meshing position of the first gear 211 and the second gear 221 reaches the gear teeth located at the end, the first gear 211 and the second gear 221 can no longer open relative to each other, thereby preventing the first door panel 21 and the second door panel 22 from rotating too much.

[0060] In other embodiments, the first gear 211 and the second gear 221 may both be full gears.

[0061] Furthermore, the weighing device also includes a limiter 5, which is connected to the bottom of the material receiving container 1, and a limit space is formed between the limiter 5 and the material receiving container 1, and the door panel assembly 2 is arranged in the limit space. On the one hand, the limit space can further limit the opening angle between the first door panel 21 and the second door panel 22, so as to avoid the opening angle between the first door panel 21 and the second door panel 22 being too large; on the other hand, when the weight of the material to be weighed is large, the free end of the first door panel 21 and / or the second door panel 22 may move, causing the first door panel 21 and / or the second door panel 22 to deform, and the limiter 5 can support the first door panel 21 and / or the second door panel 22 to avoid deformation, so as to ensure that the first door panel 21 and the second door panel 22 can completely cover the discharge port 121.

[0062] Specifically, both ends of the limiting member 5 are connected to the bottom of the material receiving container 1, and the middle portion of the limiting member 5 has a limiting groove formed in a direction away from the material receiving container 1, and a limiting space is formed between the limiting groove and the material receiving container 1. The limiting member 5 has a simple structure, and the limiting space formed between the limiting groove and the material receiving container 1 can limit the rotation angle of the first door panel 21 and / or the second door panel 22, while also preventing the first door panel 21 and / or the second door panel 22 from being deformed.

[0063] Specifically, the weighing mechanism 4 includes a weight sensor, the top of one end of the weight sensor is connected to one end of a limit member 5, and the bottom of the other end of the weight sensor is connected to any supporting plane (such as an operating platform, a base, etc.), and it is ensured that the end of the weight sensor connected to the limit member 5 does not contact the supporting plane and is separated by a certain distance. At the same time, the middle part of the weight sensor is spaced apart from the limit member 5 and the supporting plane. Therefore, the weight of the limit member 5, the door panel assembly 2, the drive member 3, the material receiving container 1 and the material will cause the end of the weight sensor connected to the limit member 5 to produce a downward displacement, and the middle part of the weight sensor will produce a deformation, thereby measuring the total weight of the limit member 5, the door panel assembly 2, the drive member 3, the material receiving container 1 and the material. The total weight of the material can be obtained by setting and subtracting the total weight of the limit member 5, the door panel assembly 2, the drive member 3 and the material receiving container 1. This weighing method is a conventional weighing method in the technical field. The specific weighing principle of the weight sensor is not described here. In other embodiments, other types of weighing mechanisms 4 can also be used.

[0064] According to an embodiment of the utility model, on the other hand, a bean grinder is provided, comprising a bean grinder and the above-mentioned weighing device, wherein the material receiving container 1 is connected to the bean grinder. By connecting the material receiving container 1 to the bean grinder, the weighed material in the weighing device is automatically discharged from the discharge port 121 to the bean grinder under the action of gravity, and the bean grinder grinds the fallen material (such as coffee beans), or the material ground by the bean grinder (such as coffee powder) falls into the material receiving container 1 under the action of gravity for weighing, thereby realizing automatic quantitative discharge and grinding of the material, reducing the difficulty of coffee preparation, and improving the efficiency of coffee preparation.

[0065] According to an embodiment of the utility model, on the other hand, a coffee machine is provided, comprising a brewing device and the above-mentioned weighing device, wherein the material receiving container 1 is connected to the brewing device. By connecting the material receiving container 1 to the brewing device, the driving component 3 drives the door panel assembly 2 to remain in the first state to cover the discharge port 121, so that the weighing device weighs the discharged material. When the weighing device measures that the weight of the material reaches the required total amount of material, the driving component drives the door panel assembly 2 to switch to the second state, and the door panel assembly 2 opens the discharge port 121. The weighed material is driven by gravity from the discharge port 121 to the brewing device for brewing coffee, thereby realizing automatic quantitative discharge of the material, reducing the difficulty of coffee preparation, and improving the efficiency of coffee preparation.

[0066] In other embodiments, if the material weighed by the weighing device is a material that cannot be brewed directly, such as coffee beans, the coffee machine may further include a grinding device, etc. The grinding device may be arranged between the material receiving container 1 and the brewing device, and the coffee beans weighed by the weighing device are ground and discharged into the brewing device.

[0067] The weighing process of the coffee machine of this embodiment is described in detail below in conjunction with the accompanying drawings:

[0068] Before weighing, the driving member 3 drives the door panel assembly 2 to remain in the first state, the door panel assembly 2 blocks the coffee beans from falling into the receiving container 1, and is blocked by the door panel assembly 2 and does not flow out from the discharge port 121;

[0069] During this process, the weighing mechanism 4 will weigh the weight of the coffee beans entering the receiving container 1. As the weight of the coffee beans increases, when the weighing mechanism 4 weighs the coffee beans in the receiving container 1 to reach the required total amount of coffee beans, the coffee beans are stopped from being added to the receiving container 1.

[0070] Afterwards, the driving member 3 drives the door panel assembly 2 to switch from the first state to the second state, and the door panel assembly 2 opens the discharge port 121. The coffee beans previously blocked by the door panel assembly 2 will be discharged from the discharge port 121 to the brewing device for brewing coffee under the action of gravity, thereby completing the automatic weighing and discharge process of the coffee beans.

[0071] Of course, the weighing device of this embodiment can also be applied to other electrical appliances or industrial equipment that require weighing. The weighing device of this embodiment can realize an automated discharging process and improve the working efficiency of the corresponding electrical appliances or industrial equipment.

[0072] Although the embodiments of the present invention are described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A weighing device, characterized in that: include: A material receiving container (1) having a material discharge port (121) disposed at the bottom thereof; A door panel assembly (2) movably connected to the bottom of the material receiving container (1), the door panel assembly (2) having a first state of shielding the material outlet (121) and a second state of opening the material outlet (121); A driving member (3) is arranged on the material receiving container (1), and the driving member (3) drives the door panel assembly (2) to switch between the first state or the second state; A weighing mechanism (4) is arranged at the bottom of the material receiving container (1), and the weighing mechanism (4) is used to detect the weight of the material in the material receiving container (1) when the door panel assembly (2) is in the first state.

2. The weighing device according to claim 1, characterized in that: The door panel assembly (2) comprises a first door panel (21) and a second door panel (22); the first door panel (21) and / or the second door panel (22) are rotatably connected to the bottom of the receiving container (1); in the first state, the first door panel (21) and the second door panel (22) are closed and cover the discharge port (121); in the second state, the first door panel (21) and the second door panel (22) are separated and open the discharge port (121).

3. The weighing device according to claim 2, characterized in that: One end of the first door panel (21) and the second door panel (22) is a connecting end, and the other end is a free end. The connecting ends of the first door panel (21) and the second door panel (22) are rotatably connected to the bottom of the material receiving container (1).

4. The weighing device according to claim 3, characterized in that: The connecting end of the first door panel (21) is provided with a first gear (211), and the connecting end of the second door panel (22) is provided with a second gear (221). The axes of the first gear (211) and the second gear (221) are parallel. The first gear (211) is meshed with the second gear (221). The driving end of the driving member (3) drives the first gear (211) or the second gear (221) to rotate.

5. The weighing device according to claim 4, characterized in that: The first gear (211) and / or the second gear (221) are incomplete gears.

6. The weighing device according to claim 1, characterized in that: It also comprises a limiting member (5), the limiting member (5) being connected to the bottom of the material receiving container (1), a limiting space being formed between the limiting member (5) and the material receiving container (1), and the door panel assembly (2) being arranged in the limiting space.

7. The weighing device according to claim 6, characterized in that: The two ends of the limiting member (5) are connected to the bottom of the material receiving container (1), and the middle of the limiting member (5) has a limiting groove formed in a direction away from the material receiving container (1), and the limiting space is formed between the limiting groove and the material receiving container (1).

8. The weighing device according to any one of claims 1 to 7, characterized in that: The material receiving container (1) comprises a main body (11) and a support plate (12), wherein the support plate (12) is arranged at the bottom of the main body (11), and the support plate (12) is provided with the discharge port (121), and the inner cavity of the main body (11) is divided into a first accommodating cavity (111) and a second accommodating cavity (112), wherein the first accommodating cavity (111) is communicated with the discharge port (121), and the driving member (3) is arranged in the second accommodating cavity (112), and the driving end of the driving member (3) passes through the support plate (12) and is connected to the door panel assembly (2).

9. The weighing device according to claim 8, characterized in that: The inner wall of at least one side of the first accommodating cavity (111) is arranged inclined.

10. A bean grinder, comprising a bean grinding device and a weighing device according to any one of claims 1 to 9, characterized in that: The material receiving container (1) is connected to the bean grinding device.

11. A coffee machine, comprising a brewing device and a weighing device according to any one of claims 1 to 9, characterized in that: The material receiving container (1) is in communication with the brewing device.

Images