Bean grinding device and coffee machine

Abstract

The utility model relates to a bean grinding device and a coffee machine, and belongs to the field of coffee machines. A bean grinding device comprises a bean grinding rack; the driving part is arranged on the bean grinding rack; the transmission assembly is arranged on the bean grinding rack, and the transmission assembly is in transmission connection with the driving part; an inner grinding assembly; the outer grinding assembly is arranged around the inner grinding assembly, and a grinding gap is formed between the outer grinding assembly and the inner grinding assembly; and the powder discharging assembly is movably arranged on the bean grinding machine frame. According to the bean grinding device, the grinding gap is formed between the outer grinding assembly and the inner grinding assembly, the thickness degree of ground beans can be controlled according to the size of the grinding gap, and therefore various taste requirements can be met. Due to the arrangement of the powder discharging assembly, it is guaranteed that ground coffee beans can be rapidly and continuously output.

Description

Technical Field

[0001] The utility model relates to the field of coffee machines, in particular to a bean grinding device and a coffee machine. Background Art

[0002] Coffee powder often remains inside the grinder assembly of a coffee machine, which makes cleaning and maintenance difficult. Since the coffee powder remains inside the grinder assembly, users may encounter some difficulties when cleaning it and cannot effectively remove the coffee powder in time. Especially when using the machine again, the remaining coffee powder may cause the powder channel to become clogged, affecting the normal operation of the coffee machine. Utility Model Content

[0003] Based on this, it is necessary to provide a bean grinding device and a coffee machine to address the problem that coffee powder is inconvenient to export.

[0004] A bean grinding device, the bean grinding device comprising: a bean grinding frame, the bean grinding frame is provided with a discharge port; a driving member, the driving member is arranged on the bean grinding frame; a transmission assembly, the transmission assembly is arranged on the bean grinding frame, and the transmission assembly is in transmission connection with the driving member; an inner grinding assembly, the inner grinding assembly is arranged on the transmission assembly; an outer grinding assembly, the outer grinding assembly is movably arranged on the bean grinding frame, the outer grinding assembly is arranged around the inner grinding assembly, a grinding gap is formed between the outer grinding assembly and the inner grinding assembly, and the grinding gap is connected to the discharge port of the bean grinding frame; a powder discharge assembly, the powder discharge assembly is movably arranged on the bean grinding frame, and the powder discharge assembly is located at the discharge port.

[0005] The present application discloses a bean grinding device, which forms a grinding gap between an outer grinding component and an inner grinding component. The size of the grinding gap can be used to control the coarseness of the ground beans to meet various taste requirements. The close arrangement and layout of the components saves the space occupied by the device to the greatest extent, making it more suitable for a small coffee making environment. The compact structural design makes the device easy to install and operate, saving the user's time and energy. The setting of the discharge port and the powder discharge component ensures that the ground coffee beans can be output quickly and continuously, improves production efficiency, meets the needs of peak hours, and ensures the smooth progress of the coffee making process. Through meticulous structural design and component layout, the bean grinding device realizes a precise, efficient, adjustable and easy-to-maintain bean grinding function, providing users with a convenient and personalized coffee making solution, thereby improving coffee quality and production efficiency.

[0006] In one embodiment, the extension direction of the driving member is tangent to the transmission assembly and the extension direction of the driving member is at an acute angle to the extension direction of the discharge port. By making the extension direction of the driving member tangent to the transmission assembly, it is ensured that the transmission assembly can be smoothly acted upon by the force of the driving member, achieving effective rotation transmission, thereby ensuring the normal operation of the inner grinding assembly and the outer grinding assembly. The design of the discharge port and the extension direction of the driving member at an acute angle effectively utilizes the space inside the device, making the layout more compact, and facilitating the optimization of the overall structure and maximizing the use of space.

[0007] In one embodiment, the powder outlet assembly includes a powder outlet bracket and a first reset member, the powder outlet bracket is rotatably arranged on the bean grinder frame, the powder outlet bracket is adjacent to the discharge port, and two ends of the first reset member are respectively against the powder outlet bracket and the bean grinder frame. Since the powder outlet bracket can be rotatably arranged on the bean grinder frame, such a design can make the powder outlet bracket rotate and avoid interference during assembly. The powder outlet bracket is adjacent to the discharge port and can directly receive the coffee powder processed by the bean grinder, ensuring a tight connection between the discharge port and the powder outlet assembly, avoiding overflow or leakage of coffee powder due to excessive gap, and improving the working efficiency of the device and the utilization rate of coffee powder. The provision of the first reset member provides additional support and stability, and can drive the powder outlet bracket to reset after the powder outlet bracket rotates.

[0008] In one embodiment, the powder output bracket includes a rotating frame, a first top plate and a second top plate, the rotating frame is movably arranged on the bean grinder frame, the first top plate and the second top plate are arranged on the rotating frame and located on both sides of the rotating frame, and the first top plate and the second top plate are used to respectively abut against the compressed powder brewing device. By movably setting the rotating frame on the bean grinder frame, a stable support platform can be provided. The first top plate and the second top plate are arranged on the rotating frame and located on both sides of the rotating frame, which can effectively adapt to the movement of the pressurized powder brewing device. When the compressed powder brewing device moves, the first top plate and the second top plate can respectively abut against the compressed powder brewing device, ensuring that the powder output bracket rotates under the push of the compressed powder brewing device to avoid interference, thereby ensuring that the coffee powder can be accurately transported into the compressed powder brewing device.

[0009] In one embodiment, the transmission assembly includes a power gear and a transmission shaft, the power gear is arranged on the transmission shaft, the transmission shaft is connected to the inner grinding assembly, and the power gear is in transmission connection with the driving member. The power gear is arranged with the transmission shaft to effectively transmit the power of the driving member to the inner grinding assembly, thereby realizing the normal operation of the inner grinding assembly. This ensures that the coffee beans can be processed smoothly through the grinding device. The transmission shaft is tightly connected to the inner grinding assembly to ensure the stability of the transmission. Such a design prevents loosening or falling off during the transmission process, thereby improving the reliability and stability of the device.

[0010] In one embodiment, the coffee beans are further provided with a bean-pushing assembly, which is rotatably arranged on the bean-grinding machine frame and is in transmission connection with the outer grinding assembly. The bean-pushing assembly is in transmission connection with the outer grinding assembly, which helps to discharge the coffee beans smoothly. The transmission connection with the outer grinding assembly ensures reliable transmission of the bean-pushing assembly. This transmission mode enables the bean-pushing assembly to perform synchronous action according to the operation of the outer grinding assembly, thereby ensuring stable processing of the coffee beans during the bean-grinding process.

[0011] In one of the embodiments, a detection component is further included, wherein the detection component is arranged on the bean grinder frame, the detection component is arranged opposite to the transmission component, and the detection component is used to detect the rotation speed of the transmission component. By arranging the detection component on the bean grinder frame, the rotation speed of the transmission component can be monitored in real time. By detecting the rotation speed of the transmission component, abnormal conditions or faults can be discovered in time, thereby ensuring the safe operation of the device. The rotation speed of the transmission component is very important for controlling the bean grinding process. The presence of the detection component enables the device to more accurately control the rotation speed of the transmission component, thereby achieving precise control of the coffee bean grinding process and ensuring the quality and consistency of the ground beans. The detection component can detect abnormal changes in the rotation speed of the transmission component, such as too fast or too slow rotation speed, which helps to timely discover faults in the transmission system and improve the efficiency of fault diagnosis and maintenance.

[0012] In one embodiment, the bean grinder frame includes a frame base, a bean bin, a motor base and a motor limit cover, the bean bin is arranged on the frame base, the bean bin is connected to the grinding gap, the motor base is arranged on the frame base, the motor limit cover is arranged on the motor base, the driving member is arranged on the motor base, and part of the driving member is located between the motor base and the motor limit cover. The frame base provides a stable support for the bean grinder, ensuring the stability and safety of the device during operation. The bean bin is arranged on the frame base for convenient storage of coffee beans. The bean bin is connected to the grinding gap, ensuring that the coffee beans can smoothly enter the grinding area, thereby realizing the continuous grinding process. The motor base and the motor limit cover are arranged on the frame base, providing a suitable position for the installation of the motor. At the same time, the driving member is arranged on the motor base, and part of it is located between the motor base and the motor limit cover, ensuring the stable connection and appropriate installation position of the driving member and the motor. The bean bin, motor base and motor limit cover are integrated on the frame base, which effectively saves the space of the device and makes the overall structure more compact, which is suitable for installation requirements in different scenarios.

[0013] In one embodiment, it also includes a limit shell, which is arranged on the motor limit cover; and also includes a bean-pushing assembly, which includes a bean-pushing rod, a bean-pushing transmission gear, a third reset member, a limit convex block and a fourth reset member, the gear portion of the bean-pushing transmission gear is limited between the limit shell and the motor limit cover, the bean-pushing rod is arranged on the bean-pushing transmission gear and extends into the bean bin, one end of the third reset member abuts against the bean-pushing transmission gear, and the other end of the third reset member abuts against the motor limit cover. By arranging the limit shell on the motor limit cover, it is used to limit and protect the motion range of the bean-pushing assembly, ensuring that it does not exceed the set range during operation, thereby improving the safety and stability of the device. The gear portion of the bean-pushing transmission gear is limited between the limit shell and the motor limit cover, and this design ensures that the bean-pushing transmission gear is limited when rotating, avoiding unnecessary exceeding of the motion range. The bean-pushing rod is arranged on the bean-pushing transmission gear and extends into the bean bin, and it realizes the stirring and separation of coffee beans through the connection with the bean-pushing transmission gear. This helps ensure that the coffee beans in the bean bin can smoothly enter the grinding area, improving the working efficiency of the device and the utilization rate of the coffee beans. One end of the third reset member abuts against the bean-pushing transmission gear, and the other end abuts against the motor limit cover. This arrangement ensures a stable connection and proper limit of the bean-pushing rod. The arrangement of the fourth reset member also helps to ensure the stability and safety of the limit protrusion.

[0014] In one embodiment, the inner grinding assembly includes an inner grinding head, a connecting shaft, an end cover and a limit assembly, wherein the inner grinding head is arranged on the transmission assembly, the two ends of the connecting shaft are respectively connected to the inner grinding head and the limit assembly, and the end cover is limited between the limit assembly and the connecting shaft. The inner grinding head is arranged on the transmission assembly, the two ends of the connecting shaft are respectively connected to the inner grinding head and the limit assembly, and the end cover is limited between the limit assembly and the connecting shaft. Such a design ensures the stable installation of the inner grinding assembly and ensures the stability and safety during the grinding process. The inner grinding head is located on the transmission assembly and can effectively receive the power of the transmission assembly to achieve efficient grinding of coffee beans. The design of the connecting shaft ensures that the transmission force can be effectively transmitted to the grinding head, thereby ensuring the grinding effect and speed, and the extrusion of coffee beans is achieved through the end cover.

[0015] In one embodiment, the inner grinding head includes an inner grinding body and inner grinding teeth, and the inner grinding teeth are arranged on the inner grinding body and along the circumference of the inner grinding body. By arranging the inner grinding teeth along the circumference of the inner grinding body, the grinding range can be more effectively covered, thereby improving the grinding efficiency. Such a design enables the inner grinding head to grind the coffee beans into powder more quickly, saving time and energy costs. Uniform grinding and efficient grinding can ensure that the coffee beans are fully ground into fine powder, thereby improving the quality and taste of the coffee powder. Such a design makes the coffee produced by the bean grinding device more fragrant and rich.

[0016] In one embodiment, the connecting shaft includes a connecting rod and a spiral rib, and the two ends of the connecting rod are respectively connected to the inner grinding head and the limit assembly, and the spiral rib is arranged on the connecting rod. The two ends of the connecting rod are respectively connected to the inner grinding head and the limit assembly, thereby ensuring a stable connection between the inner grinding head and the limit assembly. This connection method can effectively transmit power and withstand the force during the grinding process, thereby ensuring the stability and safety of the bean grinding device. The spiral rib is arranged on the connecting rod, and the design of the spiral rib can realize the movement of the coffee beans.

[0017] In one embodiment, the limit assembly includes a limit column and a second reset member, the limit column is arranged on the connecting shaft, the second reset member is sleeved on the limit column, and part of the end cover is located between the second reset member and the connecting shaft. The limit column is arranged on the connecting shaft to limit the movement range of the inner grinding head. Through the design of the limit column, it can be ensured that the inner grinding head will not exceed the set range during the grinding process, thereby ensuring the stability and safety of the grinding. The second reset member is sleeved on the limit column and can reset the end cover when necessary. When the end cover needs to return to the initial position, the second reset member can play a role in guiding and positioning, ensuring that the end cover can accurately return to the reset position and prepare for the next round of grinding.

[0018] In one embodiment, the grinding assembly includes an outer mounting shell, a locking shell and an outer grinding piece, the outer grinding piece is provided with a grinding through hole, the locking shell is sleeved on the outer grinding piece, the outer mounting shell is sleeved on the locking shell, and the inner grinding assembly passes through the grinding through hole. The setting of the locking shell can firmly fix the outer grinding piece, ensure the close fit between the outer grinding piece and the inner grinding assembly, reduce the shaking and friction during the grinding process, and improve the stability and accuracy of the grinding. The design of the outer mounting shell and the locking shell enables the grinding assembly to be easily disassembled and installed, facilitates the maintenance and cleaning of the internal components, and improves the maintainability and service life of the device. The outer grinding piece is provided with a grinding through hole. Through this design, the inner grinding assembly can directly pass through the grinding through hole, achieving a more direct and efficient grinding effect. This direct contact method can improve the grinding efficiency, shorten the grinding time, and improve production efficiency.

[0019] In one embodiment, the grinding assembly further includes a transmission gear, the outer mounting shell includes a first annular shell, a first limiting portion and a second limiting portion, the first limiting portion and the second limiting portion are arranged on the first annular shell, the first limiting portion is located on the inner side of the first annular shell, and the second limiting portion is located on the outer side of the first annular shell, the outer periphery of the locking shell is provided with a first limiting groove, the first limiting groove is adapted to the first limiting portion, the transmission gear is sleeved on the outer mounting shell, the transmission gear is provided with a second limiting groove, and the second limiting groove is adapted to the second limiting portion. The outer mounting shell is formed by the first annular shell, the first limiting portion and the second limiting portion. This structural design makes the outer mounting shell more stable, can effectively protect the internal grinding assembly and transmission gear, and reduces the possibility of external collision or damage. The transmission gear is sleeved on the outer mounting shell, and this design makes the transmission gear easy to disassemble and install, facilitates the maintenance and cleaning of the transmission system, and improves the maintainability and service life of the device. The setting of the transmission gear can more effectively transmit power and realize the grinding effect between the inner grinding assembly and the outer grinding member. Through the precise matching of the limiting components, the transmission gear can work at the correct position and angle, which improves the transmission efficiency, shortens the grinding time, and improves the production efficiency. The setting of the limiting components effectively prevents unnecessary friction and collision between the transmission gear and the external mounting housing, reduces the failure and damage caused by friction and wear, and enhances the durability and stability of the device.

[0020] In one embodiment, the outer grinding member includes a grinding ring and outer grinding teeth, the grinding ring is arranged on the locking shell, the outer grinding teeth are arranged on the grinding ring and located on the inner side of the grinding ring, and the outer grinding teeth are arranged along the circumference of the grinding ring. By arranging the grinding ring on the locking shell, such a design can ensure that the outer grinding member is firmly installed in the bean grinding device, and will not loosen or fall off due to vibration or collision during operation, thereby ensuring the stability and safety of the grinding process. The outer grinding teeth are arranged on the grinding ring and located on the inner side thereof, and are arranged along the circumference of the grinding ring. This design ensures close contact between the outer grinding teeth and the inner grinding assembly, thereby achieving effective grinding. The outer grinding teeth are arranged along the circumference of the grinding ring, which can act on the coffee beans more evenly and improve the efficiency and consistency of grinding.

[0021] The second aspect of the present application discloses a coffee machine, which comprises: a coffee machine housing; the above-mentioned bean grinding device, which is arranged on the coffee machine housing; a compressed powder brewing device, which is arranged on the coffee machine housing and is adjacent to the compressed powder brewing device; and a water supply component, which is connected to the compressed powder brewing device.

[0022] The second aspect of the present application discloses a coffee machine that integrates a bean grinding device, a powder pressing and brewing device, and a water supply component in the same coffee machine housing, which effectively saves countertop space and is particularly suitable for use in limited space environments such as small kitchens or offices. All major coffee-making components are concentrated in one device. Users do not need additional independent equipment and only need to operate on the same coffee machine, making the coffee-making process simpler and more convenient. Since the bean grinding device, powder pressing and brewing device, and water supply component are arranged adjacent to each other, the entire coffee-making process is more coherent and smooth, which can improve coffee production efficiency and reduce waiting time. The integration of multiple steps such as grinding beans, pressing powder, and brewing simplifies the user operation process, reduces the possibility of operating errors, and improves the user experience, allowing more people to easily make high-quality coffee. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a first stereoscopic view of the bean grinding device;

[0024] Figure 2 is a second stereoscopic view of the bean grinding device;

[0025] Figure 3 is a first cross-sectional view of the bean grinding device;

[0026] Figure 4 is a second cross-sectional view of the bean grinding device;

[0027] Figure 5 This is the first exploded view of the grinding device;

[0028] Figure 6 This is the second exploded view of the grinding device;

[0029] Figure 7 This is the third exploded view of the grinding device;

[0030] Figure 8 A first stereoscopic diagram of a partial structure of a bean grinding device;

[0031] Fig. 9 A second stereoscopic view of a partial structure of the bean grinding device;

[0032] Fig.10 This is a three-dimensional picture of the grinder rack;

[0033] Fig.11 This is an exploded view of the grinder rack;

[0034] Fig.12 is a perspective view of the inner grinding assembly;

[0035] Fig.13 is a cross-sectional view of an inner grinding component;

[0036] Fig.14 is a perspective view of an external grinding assembly;

[0037] Fig.15 is a cross-sectional view of an external grinding component;

[0038] Fig.16 This is an exploded view of the external grinding assembly;

[0039] Fig.17 A cross-sectional view of an exploded view of an external grinding component;

[0040] Fig.18 A three-dimensional diagram of a bean-digging assembly;

[0041] Fig.19 is a first cross-sectional view of the bean-digging assembly;

[0042] Fig. 20 It is the second cross-sectional view of the bean-digging assembly.

[0043] The corresponding relationship between the reference numerals and the component names is as follows:

[0044] 1 bean grinder frame, 11 frame base, 12 bean bin, 13 motor base, 14 motor limit cover, 15 limit shell;

[0045] 2 driving parts;

[0046] 3 transmission assembly, 31 transmission gear, 32 transmission shaft;

[0047] 4 inner grinding assembly, 41 inner grinding head, 411 inner grinding body, 412 inner grinding teeth, 42 connecting shaft, 421 connecting rod, 422 spiral rib, 43 end cover, 44 limiting assembly, 441 limiting column, 442 second reset member;

[0048] 5 external grinding assembly, 51 mounting housing, 511 first annular housing, 512 first limiting portion, 513 second limiting portion, 52 locking housing, 53 external grinding member, 531 grinding ring, 532 external grinding teeth, 54 transmission gear, 501 grinding through hole, 502 first limiting groove, 503 second limiting groove;

[0049] 6 powder outlet assembly, 61 powder outlet bracket, 611 rotating frame, 612 first top plate, 613 second top plate, 62 first reset member;

[0050] 7 bean-pushing assembly, 71 bean-pushing rod, 72 bean-pushing transmission gear, 73 third reset member, 74 limiting protrusion, 75 fourth reset member;

[0051] 8 Detection components. DETAILED DESCRIPTION

[0052] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0053] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0054] The bean grinding device and the coffee machine according to some embodiments of the present invention are described below with reference to the accompanying drawings.

[0055] Example 1

[0056] like Figures 1 to 20 As shown, the present embodiment discloses a bean grinding device, which includes: a bean grinding frame 1, on which a discharge port is provided; a driving member 2, which is arranged on the bean grinding frame 1; a transmission assembly 3, which is arranged on the bean grinding frame 1, and the transmission assembly 3 is transmission-connected with the driving member 2; an inner grinding assembly 4, which is arranged on the transmission assembly 3; an outer grinding assembly 5, which is movably arranged on the bean grinding frame 1, and the outer grinding assembly 5 is arranged around the inner grinding assembly 4, and a grinding gap is formed between the outer grinding assembly 5 and the inner grinding assembly 4, and the grinding gap is connected to the discharge port of the bean grinding frame 1; and a powder discharge assembly 6, which is movably arranged on the bean grinding frame 1, and is located at the discharge port.

[0057] The present application discloses a bean grinding device, which forms a grinding gap between an outer grinding component 5 and an inner grinding component 4. The size of the grinding gap can be used to control the coarseness of the ground beans to meet various taste requirements. The close arrangement and layout of the components saves the space occupied by the device to the greatest extent, making it more suitable for a small coffee making environment. The compact structural design makes the device easy to install and operate, saving the user's time and energy. The setting of the discharge port and the powder discharge component 6 ensures that the ground coffee beans can be output quickly and continuously, improves production efficiency, meets the needs of peak hours, and ensures the smooth progress of the coffee making process. Through meticulous structural design and component layout, the bean grinding device realizes a precise, efficient, adjustable and easy-to-maintain bean grinding function, providing users with a convenient and personalized coffee making solution, thereby improving coffee quality and production efficiency.

[0058] like Figure 2 As shown, in addition to the features of the above-mentioned embodiment, this embodiment further defines that: the extension direction of the driving member 2 is tangent to the transmission assembly 3 and the extension direction of the driving member 2 is at an acute angle to the extension direction of the discharge port. By making the extension direction of the driving member 2 tangent to the transmission assembly 3, it is ensured that the transmission assembly 3 can be smoothly acted upon by the force of the driving member 2, and effective rotation transmission is achieved, thereby ensuring the normal operation of the inner grinding assembly 4 and the outer grinding assembly 5. The design of the discharge port and the extension direction of the driving member 2 at an acute angle effectively utilizes the space inside the device, making the layout more compact, and facilitating the optimization of the overall structure and maximizing the use of space.

[0059] like Figure 6 and Figure 7 As shown, in addition to the features of the above-mentioned embodiment, this embodiment further defines that: the powder discharge assembly 6 includes a powder discharge bracket 61 and a first reset member 62, the powder discharge bracket 61 is rotatably arranged on the bean grinder frame 1, the powder discharge bracket 61 is adjacent to the discharge port, and the two ends of the first reset member 62 are respectively against the powder discharge bracket 61 and the bean grinder frame 1. The powder discharge bracket 61 can be rotatably arranged on the bean grinder frame 1, and such a design can make the powder discharge bracket 61 rotate and avoid interference during assembly. The powder discharge bracket 61 is adjacent to the discharge port and can directly receive the coffee powder processed by the bean grinder, ensuring a close connection between the discharge port and the powder discharge assembly, avoiding the overflow or leakage of coffee powder due to an excessively large gap, and improving the working efficiency of the device and the utilization rate of coffee powder. The setting of the first reset member 62 provides additional support and stability, and can drive the powder discharge bracket 61 to reset after the powder discharge bracket 61 rotates.

[0060] like Figure 1As shown, in addition to the features of the above embodiment, this embodiment further defines that: the powder output bracket 61 includes a rotating frame 611, a first top plate 612, and a second top plate 613, the rotating frame 611 is movably arranged on the bean grinder frame 1, the first top plate 612 and the second top plate 613 are arranged on the rotating frame 611 and located on both sides of the rotating frame 611, and the first top plate 612 and the second top plate 613 are used to respectively abut against the compressed powder brewing device. By movably setting the rotating frame 611 on the bean grinder frame 1, a stable support platform can be provided. The first top plate 612 and the second top plate 613 are arranged on the rotating frame 611 and located on both sides of the rotating frame 611, which can effectively adapt to the movement of the pressurized powder brewing device. When the compressed powder brewing device moves, the first top plate 612 and the second top plate 613 can respectively abut against the compressed powder brewing device, ensuring that the powder output bracket 61 rotates under the top push of the compressed powder brewing device, avoiding interference, and ensuring that the coffee powder can be accurately transported into the compressed powder brewing device.

[0061] like Figure 6 As shown, in addition to the features of the above-mentioned embodiments, this embodiment further defines that: the transmission assembly 3 includes a power gear 31 and a transmission shaft 32, the power gear 31 is arranged on the transmission shaft 32, the transmission shaft 32 is connected to the inner grinding assembly 4, and the power gear 31 is in transmission connection with the driving member 2. The power gear 31 effectively transmits the power of the driving member 2 to the inner grinding assembly 4 through the arrangement with the transmission shaft 32, thereby realizing the normal operation of the inner grinding assembly 4. This ensures that the coffee beans can be processed smoothly through the grinding device. The transmission shaft 32 is tightly connected to the inner grinding assembly 4 to ensure the stability of the transmission. Such a design prevents loosening or falling off during the transmission process, thereby improving the reliability and stability of the device.

[0062] like Figure 1 and Figure 2 As shown, in addition to the features of the above-mentioned embodiment, this embodiment is further defined as follows: it also includes a bean-pushing assembly 7, which is rotatably arranged on the bean-grinding machine frame 1, and the bean-pushing assembly 7 is transmission-connected with the outer grinding assembly 5. The bean-pushing assembly 7 is transmission-connected with the outer grinding assembly 5, which helps to discharge the coffee beans smoothly. The transmission connection with the outer grinding assembly 5 ensures the reliable transmission of the bean-pushing assembly 7. This transmission mode enables the bean-pushing assembly to perform synchronous action according to the operation of the outer grinding assembly, ensuring the stable processing of the coffee beans during the bean-grinding process.

[0063] like Figure 6 and Figure 7As shown, in addition to the features of the above-mentioned embodiment, this embodiment further defines: it also includes a detection component 8, which is arranged on the bean grinder frame 1, and the detection component 8 is arranged opposite to the transmission component 3, and the detection component 8 is used to detect the rotation speed of the transmission component 3. By setting the detection component 8 on the bean grinder frame 1, the rotation speed of the transmission component 3 can be monitored in real time. By detecting the rotation speed of the transmission component 3, abnormal conditions or faults can be discovered in time, thereby ensuring the safe operation of the device. The rotation speed of the transmission component 3 is very important for the control of the bean grinding process. The existence of the detection component 8 enables the device to control the rotation speed of the transmission component 3 more accurately, thereby achieving accurate control of the coffee bean grinding process and ensuring the quality and consistency of the ground beans. The detection component 8 can detect abnormal changes in the rotation speed of the transmission component 3, such as too fast or too slow rotation speed, which helps to discover the fault of the transmission system in time and improve the efficiency of fault diagnosis and maintenance.

[0064] like Fig.10 and Fig.11 As shown, in addition to the features of the above-mentioned embodiment, this embodiment further defines that: the bean grinding machine frame 1 includes a frame base 11, a bean bin 12, a motor base 13 and a motor limit cover 14, the bean bin 12 is arranged on the frame base 11, the bean bin 12 is connected to the grinding gap, the motor base 13 is arranged on the frame base 11, the motor limit cover 14 is arranged on the motor base 13, the driving member 2 is arranged on the motor base 13, and part of the driving member 2 is located between the motor base 13 and the motor limit cover 14. The frame base 11 provides a stable support for the bean grinding device, ensuring the stability and safety of the device during operation. The bean bin 12 is arranged on the frame base 11 for convenient storage of coffee beans. The bean bin 12 is connected to the grinding gap, ensuring that the coffee beans can smoothly enter the grinding area, thereby realizing the continuous grinding process. The motor base 13 and the motor limit cover 14 are arranged on the frame base 11, providing a suitable position for the installation of the motor. At the same time, the driving member 2 is arranged on the motor base 13, and part of it is located between the motor base 13 and the motor limit cover 14, which ensures the stable connection and proper installation position of the driving member 2 and the motor. Integrating the bean bin, motor base and motor limit cover on the frame base effectively saves the space of the device, making the overall structure more compact and suitable for installation requirements in different scenarios.

[0065] like Fig.10 , Fig.11 , Fig.18 , Fig.19 and Fig. 20As shown, in addition to the features of the above-mentioned embodiment, this embodiment further defines: it also includes a limit shell 15, which is arranged on the motor limit cover 14; it also includes a bean-pushing assembly 7, which includes a bean-pushing rod 71, a bean-pushing transmission gear 72, a third reset member 73, a limit convex block 74 and a fourth reset member 75, the gear portion of the bean-pushing transmission gear 72 is limited between the limit shell 15 and the motor limit cover 14, the bean-pushing rod 71 is arranged on the bean-pushing transmission gear 72 and extends into the bean bin 12, one end of the third reset member 73 abuts against the bean-pushing transmission gear 72, and the other end of the third reset member 73 abuts against the motor limit cover 14. By arranging the limit shell 15 on the motor limit cover 14, it is used to limit and protect the movement range of the bean-pushing assembly 7, ensuring that it will not exceed the set range during operation, thereby improving the safety and stability of the device. The gear part of the bean-pushing transmission gear 72 is limited between the limit shell 15 and the motor limit cover 14. This design ensures that the bean-pushing transmission gear 72 is limited when rotating, avoiding unnecessary exceeding of the range of motion. The bean-pushing rod 71 is arranged on the bean-pushing transmission gear 72 and extends into the bean bin 12. It realizes the stirring and separation of coffee beans by connecting with the bean-pushing transmission gear 72. This helps to ensure that the coffee beans in the bean bin can smoothly enter the grinding area, improves the working efficiency of the device and the utilization rate of coffee beans. One end of the third reset member 73 abuts against the bean-pushing transmission gear 72, and the other end abuts against the motor limit cover 14. This arrangement ensures the stable connection and appropriate limitation of the bean-pushing rod 71. The arrangement of the fourth reset member 75 also helps to ensure the stability and safety of the limit protrusion 74.

[0066] like Fig.12 and Fig.13 As shown, in addition to the features of the above embodiment, this embodiment further defines that: the inner grinding assembly 4 includes an inner grinding head 41, a connecting shaft 42, an end cover 43 and a limit assembly 44, the inner grinding head 41 is arranged on the transmission assembly 3, the two ends of the connecting shaft 42 are respectively connected to the inner grinding head 41 and the limit assembly 44, and the end cover 43 is limited between the limit assembly 44 and the connecting shaft 42. The inner grinding head 41 is arranged on the transmission assembly 3, the two ends of the connecting shaft 42 are respectively connected to the inner grinding head 41 and the limit assembly 44, and the end cover 43 is limited between the limit assembly 44 and the connecting shaft 42. Such a design ensures the stable installation of the inner grinding assembly 4, and ensures the stability and safety during the grinding process. The inner grinding head 41 is located on the transmission assembly 3, and can effectively receive the power of the transmission assembly to achieve efficient grinding of coffee beans. The design of the connecting shaft 42 ensures that the transmission force can be effectively transmitted to the grinding head, thereby ensuring the effect and speed of grinding. The coffee beans are squeezed through the end cover 43.

[0067] like Fig.12 and Fig.13As shown, in addition to the features of the above-mentioned embodiments, this embodiment further defines that: the inner grinding head 41 includes an inner grinding body 411 and inner grinding teeth 412, and the inner grinding teeth 412 are arranged on the inner grinding body 411 and arranged along the circumference of the inner grinding body 411. By arranging the inner grinding teeth 412 along the circumference of the inner grinding body 411, the grinding range can be more effectively covered, thereby improving the grinding efficiency. Such a design enables the inner grinding head 41 to grind the coffee beans into powder more quickly, saving time and energy costs. Uniform grinding and efficient grinding can ensure that the coffee beans are fully ground into fine powder, thereby improving the quality and taste of the coffee powder. Such a design makes the coffee produced by the bean grinding device more fragrant and rich.

[0068] like Fig.12 and Fig.13 As shown, in addition to the features of the above-mentioned embodiment, this embodiment further defines that: the connecting shaft 42 includes a connecting rod 421 and a spiral rib 422, the two ends of the connecting rod 421 are respectively connected to the inner grinding head 41 and the limit assembly 44, and the spiral rib 422 is arranged on the connecting rod 421. The two ends of the connecting rod 421 are respectively connected to the inner grinding head 41 and the limit assembly 44, thereby ensuring a stable connection between the inner grinding head and the limit assembly. This connection method can effectively transmit power and withstand the force during the grinding process, thereby ensuring the stability and safety of the bean grinding device. The spiral rib 422 is arranged on the connecting rod 421, and the design of the spiral rib can realize the stirring of coffee beans.

[0069] like Fig.12 and Fig.13 As shown, in addition to the features of the above-mentioned embodiment, this embodiment further defines that: the limiting assembly 44 includes a limiting column 441 and a second reset member 442, the limiting column 441 is arranged on the connecting shaft 42, the second reset member 442 is sleeved on the limiting column 441, and part of the end cover 43 is located between the second reset member 442 and the connecting shaft 42. The limiting column 441 is arranged on the connecting shaft 42, which plays a role in limiting the motion range of the inner grinding head 41. Through the design of the limiting column 441, it can ensure that the inner grinding head 41 will not exceed the set range during the grinding process, ensuring the stability and safety of the grinding. The second reset member 442 is sleeved on the limiting column 441, and can reset the end cover 43 when necessary. When the end cover 43 needs to return to the initial position, the second reset member 442 can play a role in guiding and positioning, ensuring that the end cover 43 can accurately return to the reset position and prepare for the next round of grinding.

[0070] like Fig.14 , Fig.15 , Fig.16 and Fig.17As shown, in addition to the features of the above-mentioned embodiment, this embodiment further defines that: the grinding assembly 5 includes an outer mounting shell 51, a locking shell 52 and an outer grinding piece 53, the outer grinding piece 53 is provided with a grinding through hole 501, the locking shell 52 is sleeved on the outer grinding piece 53, the outer mounting shell 51 is sleeved on the locking shell 52, and the inner grinding assembly 4 passes through the grinding through hole 501. The setting of the locking shell 52 can firmly fix the outer grinding piece 53, ensure the close fit between the outer grinding piece and the inner grinding assembly, reduce the shaking and friction during the grinding process, and improve the stability and accuracy of the grinding. The design of the outer mounting shell 51 and the locking shell 52 enables the grinding assembly 5 to be easily disassembled and installed, facilitates the maintenance and cleaning of the internal components, and improves the maintainability and service life of the device. The outer grinding piece 53 is provided with a grinding through hole 501. Through this design, the inner grinding assembly 4 can directly pass through the grinding through hole 501, achieving a more direct and efficient grinding effect. This direct contact method can improve the grinding efficiency, shorten the grinding time, and improve the production efficiency.

[0071] like Fig.14 , Fig.15 , Fig.16 and Fig.17As shown, in addition to the features of the above embodiment, this embodiment further defines that: the grinding assembly 5 also includes a transmission gear 54, the outer mounting shell 51 includes a first annular shell 511, a first limiting portion 512 and a second limiting portion 513, the first limiting portion 512 and the second limiting portion 513 are arranged on the first annular shell 511, the first limiting portion 512 is located inside the first annular shell 511, and the second limiting portion 513 is located outside the first annular shell 511, the outer periphery of the locking shell 52 is provided with a first limiting groove 502, the first limiting groove 502 is adapted to the first limiting portion 512, the transmission gear 54 is sleeved on the outer mounting shell 51, the transmission gear 54 is provided with a second limiting groove 503, and the second limiting groove 503 is adapted to the second limiting portion 513. The outer mounting shell 51 is formed by the first annular shell 511, the first limiting portion 512 and the second limiting portion 513. This structural design makes the outer mounting shell 51 more stable, can effectively protect the internal grinding assembly and transmission gear 54, and reduce the possibility of external collision or damage. The transmission gear 54 is sleeved on the outer mounting shell 51. Such a design allows the transmission gear 54 to be easily disassembled and installed, which facilitates the maintenance and cleaning of the transmission system and improves the maintainability and service life of the device. The setting of the transmission gear 54 can more effectively transmit power and realize the grinding effect between the internal grinding assembly 4 and the external grinding member 53. Through the precise matching of the limiting components, the transmission gear 54 can work at the correct position and angle, improve the transmission efficiency, shorten the grinding time, and improve the production efficiency. Through the setting of the limiting components, unnecessary friction and collision between the transmission gear 54 and the outer mounting shell 51 are effectively prevented, the failure and damage caused by friction and wear are reduced, and the durability and stability of the device are enhanced.

[0072] like Fig.16 and Fig.17 As shown, in addition to the features of the above embodiment, this embodiment further defines that: the outer grinding member 53 includes a grinding ring 531 and outer grinding teeth 532, the grinding ring 531 is arranged on the locking housing 52, the outer grinding teeth 532 are arranged on the grinding ring 531 and located inside the grinding ring 531, and the outer grinding teeth 532 are arranged along the circumference of the grinding ring 531. By arranging the grinding ring 531 on the locking housing 52, such a design can ensure that the outer grinding member 53 is firmly installed in the bean grinding device, and will not loosen or fall off due to vibration or collision during operation, thereby ensuring the stability and safety of the grinding process. The outer grinding teeth 532 are arranged on the grinding ring 531 and located inside the grinding ring, and are arranged along the circumference of the grinding ring 531. This design ensures close contact between the outer grinding teeth 532 and the inner grinding assembly 4, thereby achieving effective grinding. The outer grinding teeth 532 are arranged along the circumference of the grinding ring 531, which can act on the coffee beans more evenly, thereby improving the efficiency and consistency of grinding.

[0073] Example 2

[0074] The present embodiment discloses a coffee machine, which comprises: a coffee machine housing; the above-mentioned bean grinding device, which is arranged on the coffee machine housing; a powder pressing and brewing device, which is arranged on the coffee machine housing and is adjacent to the powder pressing and brewing device; and a water supply component, which is connected to the powder pressing and brewing device.

[0075] The second aspect of the present application discloses a coffee machine that integrates a bean grinding device, a powder pressing and brewing device, and a water supply component in the same coffee machine housing, which effectively saves countertop space and is particularly suitable for use in limited space environments such as small kitchens or offices. All major coffee-making components are concentrated in one device. Users do not need additional independent equipment and only need to operate on the same coffee machine, making the coffee-making process simpler and more convenient. Since the bean grinding device, powder pressing and brewing device, and water supply component are arranged adjacent to each other, the entire coffee-making process is more coherent and smooth, which can improve coffee production efficiency and reduce waiting time. The integration of multiple steps such as grinding beans, pressing powder, and brewing simplifies the user operation process, reduces the possibility of operating errors, and improves the user experience, allowing more people to easily make high-quality coffee.

[0076] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0077] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A bean grinding device, characterized in that: The bean grinding device comprises: A bean grinder frame (1), wherein the bean grinder frame (1) is provided with a discharge port; A driving member (2), wherein the driving member (2) is arranged on the coffee bean grinder frame (1); A transmission assembly (3), wherein the transmission assembly (3) is arranged on the coffee bean grinder frame (1), and the transmission assembly (3) is in transmission connection with the driving member (2); An internal grinding assembly (4), wherein the internal grinding assembly (4) is arranged on the transmission assembly (3); an outer grinding assembly (5), the outer grinding assembly (5) being movably arranged on the bean grinder frame (1), the outer grinding assembly (5) being arranged around the inner grinding assembly (4), a grinding gap being formed between the outer grinding assembly (5) and the inner grinding assembly (4), the grinding gap being in communication with the discharge port of the bean grinder frame (1); A powder discharge assembly (6), wherein the powder discharge assembly (6) is movably arranged on the bean grinder frame (1), and the powder discharge assembly (6) is located at the discharge port.

2. The bean grinding device according to claim 1, characterized in that: The extending direction of the driving member (2) is tangent to the transmission assembly (3), and the extending direction of the driving member (2) forms an acute angle with the extending direction of the discharge port; And / or the transmission assembly (3) comprises a power gear (31) and a transmission shaft (32), the power gear (31) is arranged on the transmission shaft (32), the transmission shaft (32) is connected to the inner grinding assembly (4), and the power gear (31) is in transmission connection with the driving member (2); And / or further comprising a bean-pushing assembly (7), wherein the bean-pushing assembly (7) is rotatably arranged on the bean-grinding machine frame (1), and the bean-pushing assembly (7) is drivingly connected to the external grinding assembly (5); And / or further comprises a detection component (8), wherein the detection component (8) is arranged on the bean grinder frame (1), the detection component (8) is arranged opposite to the transmission component (3), and the detection component (8) is used to detect the rotation speed of the transmission component (3).

3. The bean grinding device according to claim 1, characterized in that: The powder discharge assembly (6) comprises a powder discharge bracket (61) and a first reset member (62); the powder discharge bracket (61) is rotatably arranged on the bean grinder frame (1); the powder discharge bracket (61) is adjacent to the discharge port; and two ends of the first reset member (62) are respectively abutted against the powder discharge bracket (61) and the bean grinder frame (1).

4. The bean grinding device according to claim 3, characterized in that: The powder output support (61) comprises a rotating frame (611), a first top plate (612) and a second top plate (613); the rotating frame (611) is movably arranged on the grinder frame (1); the first top plate (612) and the second top plate (613) are arranged on the rotating frame (611) and are located on both sides of the rotating frame (611); the first top plate (612) and the second top plate (613) are used to respectively abut against the pressed powder brewing device.

5. The bean grinding device according to claim 1, characterized in that: The bean grinder frame (1) comprises a frame base (11), a bean bin (12), a motor base (13) and a motor limit cover (14); the bean bin (12) is arranged on the frame base (11); the bean bin (12) is communicated with the grinding gap; the motor base (13) is arranged on the frame base (11); the motor limit cover (14) is arranged on the motor base (13); the driving member (2) is arranged on the motor base (13); and a portion of the driving member (2) is located between the motor base (13) and the motor limit cover (14).

6. The bean grinding device according to claim 1, characterized in that: The inner grinding assembly (4) comprises an inner grinding head (41), a connecting shaft (42), an end cover (43) and a limiting assembly (44); the inner grinding head (41) is arranged on the transmission assembly (3); the two ends of the connecting shaft (42) are respectively connected to the inner grinding head (41) and the limiting assembly (44); the end cover (43) is limited between the limiting assembly (44) and the connecting shaft (42).

7. The bean grinding device according to claim 6, characterized in that: The inner grinding head (41) comprises an inner grinding body (411) and inner grinding teeth (412), wherein the inner grinding teeth (412) are arranged on the inner grinding body (411) and along the circumference of the inner grinding body (411); And / or the connecting shaft (42) comprises a connecting rod (421) and a spiral rib (422), the two ends of the connecting rod (421) are respectively connected to the inner grinding head (41) and the limiting assembly (44), and the spiral rib (422) is arranged on the connecting rod (421); And / or the limiting assembly (44) comprises a limiting column (441) and a second resetting member (442), wherein the limiting column (441) is arranged on the connecting shaft (42), the second resetting member (442) is sleeved on the limiting column (441), and a portion of the end cover (43) is located between the second resetting member (442) and the connecting shaft (42).

8. The bean grinding device according to claim 1, characterized in that: The grinding assembly (5) comprises an outer mounting shell (51), a locking shell (52) and an outer grinding piece (53); the outer grinding piece (53) is provided with a grinding through hole (501); the locking shell (52) is sleeved on the outer grinding piece (53); the outer mounting shell (51) is sleeved on the locking shell (52); and the inner grinding assembly (4) passes through the grinding through hole (501).

9. The bean grinding device according to claim 8, characterized in that: The grinding assembly (5) further comprises a transmission gear (54); the outer mounting shell (51) comprises a first annular shell (511), a first limiting portion (512) and a second limiting portion (513); the first limiting portion (512) and the second limiting portion (513) are arranged on the first annular shell (511); the first limiting portion (512) is located on the inner side of the first annular shell (511); the second limiting portion (513) is located on the outer side of the first annular shell (511); a first limiting groove (502) is arranged on the outer periphery of the locking shell (52); the first limiting groove (502) is matched with the first limiting portion (512); the transmission gear (54) is sleeved on the outer mounting shell (51); the transmission gear (54) is provided with a second limiting groove (503); the second limiting groove (503) is matched with the second limiting portion (513); And / or the external grinding member (53) comprises a grinding ring (531) and external grinding teeth (532), the grinding ring (531) is arranged on the locking housing (52), the external grinding teeth (532) are arranged on the grinding ring (531) and are located on the inner side of the grinding ring (531), and the external grinding teeth (532) are arranged along the circumference of the grinding ring (531).

10. A coffee machine, characterized in that: The coffee machine comprises: Coffee machine housing; The bean grinding device according to any one of claims 1 to 9, wherein the bean grinding device is arranged on the coffee machine housing; A compressed powder brewing device, which is arranged on the coffee machine housing and is adjacent to the bean grinding device; A water supply assembly is connected to the pressed powder brewing device.

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