Beverage machine

Abstract

The application provides a beverage machine, comprising: a main body; a powder box assembly detachably arranged in the main body, the powder box assembly comprising a powder box and a feeding shaft, the feeding shaft being at least partially arranged in the powder box, the powder box assembly further comprising a discharging sleeve connected to the powder box and having a discharging section, the discharging section being provided with a discharging port; a driving shaft arranged in the main body, one end of the feeding shaft being in transmission connection with the driving shaft, the other end of the feeding shaft extending into the discharging sleeve to convey powder in the powder box to the discharging port; the powder box assembly being mounted to or separated from the main body along a direction at an angle to the axial direction of the driving shaft, the feeding shaft being in transmission connection or disconnection with the driving shaft along the axial direction of the driving shaft; a gland being arranged above the discharging section, the discharging section interfering with the gland along the vertical direction, the gland having a horizontal sliding path, the gland moving away from the driving shaft along the sliding path to remove the interference with the discharging section, thereby allowing the powder box assembly to be separated from the main body.

Description

Technical Field

[0001] This utility model relates to the field of food and beverage preparation, and in particular to a beverage machine. Background Technology

[0002] Many existing beverages, such as coffee drinks, milk drinks, and chocolate drinks, are prepared by mixing soluble powders with liquids. Regardless of how the powder and liquid are mixed, the soluble powder is typically stored in a container positioned above the opening of the mixing chamber, and a metering device, such as a screw or spiral conveyor, feeds and transports the soluble powder into the mixing chamber or a drinking cup. The liquid is simultaneously supplied to the mixing chamber to create the combined beverage.

[0003] Containers storing powders require regular cleaning, but disassembling existing powder containers from the machine is cumbersome, usually requiring manual removal of the outer shell or the use of tools. This is not only time-consuming and labor-intensive, but also prone to powder leakage during disassembly, polluting the surrounding environment. When users clean the containers, residues are not easily removed completely, and long-term accumulation can affect the taste, quality, and hygiene safety of beverages, thus reducing the user experience.

[0004] In addition, the existing connection structure between the container and the machine body is complex, and the drive shaft of the drive screw or screw conveyor is difficult to align precisely when separated, which may cause component wear or damage and affect the service life of the equipment.

[0005] Therefore, there is an urgent need for an improved design that simplifies disassembly to enhance ease of operation and maintenance efficiency. Utility Model Content

[0006] The purpose of this invention is to provide a beverage machine with a simple structure and easy-to-disassemble powder box assembly.

[0007] To achieve the above-mentioned utility model objectives, this application provides a beverage machine, comprising: Main body; A powder cartridge assembly is detachably disposed on the main body. The powder cartridge assembly includes a powder cartridge and a feeding shaft. The feeding shaft is at least partially disposed inside the powder cartridge. The powder cartridge assembly also includes a discharge sleeve. The discharge sleeve is connected to the powder cartridge and has a discharge section. The discharge section is provided with a discharge port. A drive shaft is provided on the main body. One end of the feeding shaft is connected to the drive shaft for transmission, and the other end of the feeding shaft extends into the discharge sleeve to convey the powder in the powder box to the discharge port. The powder falls into the target receiving port through the discharge port. The powder cartridge assembly is mounted to or separated from the main body along a direction at an angle to the axial direction of the drive shaft. The feeding shaft is either connected to or disconnected from the drive shaft along the axial direction of the drive shaft. A pressure cap is provided above the discharge section. The discharge section interferes with the pressure cap in the vertical direction. The pressure cap has a horizontal sliding path. The pressure cap moves away from the drive shaft along the sliding path to release the interference with the discharge section, thereby allowing the powder cartridge assembly to separate from the main body.

[0008] Compared with existing technologies, the advantages of this invention are as follows: The powder box assembly is installed on or separated from the main body along an angle to the drive shaft axis, and the feeding shaft is connected to or disconnected from the drive shaft along its axis. This makes installation and disassembly of the powder box assembly very convenient. Users do not need additional tools; they can simply slide the cover horizontally to remove interference with the discharge section, achieving rapid separation and avoiding the risk of powder leakage. Furthermore, when disassembling the powder box assembly, the impact generated by moving it away from the drive shaft ensures that residual powder at the discharge port falls into the target receiving port, preventing it from falling to the bottom of the powder dispenser or inside the machine body, thus avoiding hard-to-clean dead zones.

[0009] As a further improvement of one embodiment of the present invention, the main body is provided with a limiting block, and the bottom of the powder box assembly is provided with a locking block; the locking block interferes with the limiting block along the axial direction of the drive shaft; along the axial direction of the drive shaft, the limiting block is used to restrict the locking block from moving away from the drive shaft.

[0010] As a further improvement of one embodiment of the present invention, along the axial direction of the drive shaft, the limiting block is provided with a first guide surface and a second guide surface that are connected to each other. The first guide surface and the second guide surface are arranged sequentially from the drive shaft to the discharge port, and the slope of the first guide surface is greater than the slope of the second guide surface.

[0011] As a further improvement of one embodiment of the present invention, the card block is provided with a third guide surface that cooperates with the limiting block; the third guide surface is inclined away from the powder box in the direction from the drive shaft to the discharge port.

[0012] As a further improvement of one embodiment of the present invention, a mixer is also included, the mixer being used to mix powder and liquid from the discharge port; the mixer includes a guide member having an upper opening and a guide groove, the guide groove extending axially along the drive shaft; the pressure cap is provided with a guide block, the guide groove defining the sliding path, the guide block extending into the guide groove and moving toward the drive shaft to close the upper opening; the pressure cap and the guide member together define a guide chamber, the discharge section extending into the guide chamber to connect the discharge port to the guide chamber.

[0013] As a further improvement of one embodiment of the present invention, it also includes a mixer for mixing powder and liquid from the outlet; the mixer includes a guide member having an upper opening, a pressure cap covering the upper opening and together with the guide member defining a guide hopper, and the discharge section extending into the guide hopper; along the vertical direction, the pressure cap interferes with the main body.

[0014] As a further improvement of one embodiment of the present invention, the drive shaft includes a first cylindrical portion, and one end of the feeding shaft includes a first shaft portion. The first shaft portion extends into the first cylindrical portion to realize the transmission connection between the feeding shaft and the drive shaft. The beverage machine also includes a motor and a gearbox disposed on the main body. The rotation of the motor is decelerated by the gearbox and output by the first cylindrical portion. The motor and the first cylindrical portion are located on the same side of the gearbox.

[0015] As a further improvement of one embodiment of the present invention, a plurality of first transmission ribs are provided at intervals along the circumferential direction inside the first cylindrical portion, and a plurality of second transmission ribs are provided at intervals along the circumferential direction outside the first shaft portion; the first cylindrical portion and the first shaft portion are configured in at least one of the following ways: Along the axial direction of the feeding shaft, the length of the first shaft portion is greater than the length of the second transmission rib; the first transmission rib is provided with a first guide portion, which cooperates with the first shaft portion to guide the alignment of the first shaft portion within the first cylindrical portion; The first transmission rib is provided with a second guide portion, which cooperates with the second transmission rib to guide the first shaft portion and the first cylinder portion to rotate relative to each other; The second transmission rib is provided with a third guide portion, which cooperates with the first transmission rib to guide the first shaft portion and the first cylinder portion to rotate relative to each other; The number of the first transmission ribs is an integer multiple of the number of the second transmission ribs; The first cylindrical section is provided with a coaxial second shaft section, and the end of the first shaft section is provided with a coaxial second cylindrical section. The feeding shaft is connected to the drive shaft for transmission, and the second shaft section extends at least partially into the second cylindrical section.

[0016] As a further improvement of one embodiment of the present invention, the discharge port is at least partially located on the peripheral wall of the discharge section and extends along the axial direction of the discharge section; the discharge port includes a first edge and a second edge located on the peripheral wall of the discharge section; along the vertical direction, a plane passing through the axis of the feeding shaft is defined as a first plane, and the discharge port is configured in at least one of the following ways: With respect to the first plane, the first edge and the second edge are located on the same side of the first plane, and the central angles of the first edge and the second edge with respect to the axis of the feeding shaft are between 60 degrees and 150 degrees. The first edge is located above the second edge. Relative to the axis of the feeding shaft, the central angle from the second edge to the first plane is greater than 0 degrees and less than 60 degrees, and the central angle from the first edge to the first plane is greater than the central angle from the second edge to the first plane. The discharge section includes an end wall connected to the peripheral wall, a portion of the discharge port is located on the end wall, and the discharge port portion on the end wall communicates with the discharge port portion on the peripheral wall, together forming an opening that is fan-shaped when projected along the axial direction of the feeding shaft. The second edge has a first end connecting the end wall and an opposite second end, and in the direction from the first end to the second end, the second edge gradually moves away from the first plane; Along the vertical direction, the end wall is inclined from top to bottom toward the feeding shaft; Along the horizontal direction, the end wall is inclined from the center of the discharge section toward the feed shaft.

[0017] As a further improvement of one embodiment of the present invention, the peripheral wall of the discharge sleeve extends radially to form an edge, and a hook is provided on the edge. The discharge sleeve has a preset rotation range relative to the powder box. Within the preset rotation range, the hook switches between a locked state and a released state with the powder box along the axial direction of the feeding shaft. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of a beverage machine according to one embodiment of the present invention.

[0019] Figure 2 yes Figure 1 An enlarged schematic diagram of part a of the beverage machine.

[0020] Figure 3 yes Figure 1A 3D view of a beverage machine.

[0021] Figure 4 yes Figure 1 A diagram illustrating the installation / removal of the powder cartridge assembly in a beverage machine.

[0022] Figure 5 yes Figure 4 A 3D view of the powder cartridge assembly of a beverage machine during installation / removal.

[0023] Figure 6 yes Figure 1 A 3D schematic diagram of the powder box component of a beverage machine.

[0024] Figure 7 yes Figure 6 A schematic diagram showing the transmission connection between the feeding shaft and the drive shaft of the powder box assembly.

[0025] Figure 8 yes Figure 6 A three-dimensional schematic diagram of the powder box component from another perspective.

[0026] Figure 9 yes Figure 8 The front view of the discharge sleeve of the powder box assembly.

[0027] Figure 10 yes Figure 9 A bottom view of the discharge sleeve.

[0028] Figure 11 yes Figure 9 Side view of the discharge sleeve. Detailed Implementation

[0029] The present invention will now be described in detail with reference to the specific embodiments shown in the accompanying drawings. However, these embodiments do not limit the present invention, and any structural, methodological, or functional modifications made by those skilled in the art based on these embodiments are included within the protection scope of the present invention.

[0030] It should be understood that terms such as “above,” “over,” “below,” and “under” used herein to indicate spatial relative position are for illustrative purposes to describe the relationship of one unit or feature relative to another unit or feature as shown in the accompanying drawings. The terms “spatial relative position” may be intended to include different orientations of the equipment in use or operation other than those shown in the figures.

[0031] The beverage machine 100 in this specific embodiment of the present invention is used to dispense soluble powder and liquid for mixing to prepare beverages. (See reference...) Figures 1 to 4The beverage machine 100 includes a main body 20, a powder box assembly 30, and a drive shaft 41. The powder box assembly 30 is detachably disposed on the main body 20. The powder box assembly 30 includes a powder box 31 and a feeding shaft 32. The feeding shaft 32 is at least partially disposed within the powder box 31. The powder box assembly 30 also includes a discharge sleeve 33, which is connected to the powder box 31 and has a discharge section 331 with a discharge port 332. The drive shaft 41 is disposed on the main body 20. One end of the feeding shaft 32 is connected to the drive shaft 41 for transmission, and the other end of the feeding shaft 32 extends into the discharge sleeve 33 to convey the powder in the powder box 31 to the discharge port 332. The powder falls into the target receiving port through the discharge port 332.

[0032] The powder cartridge assembly 30 is mounted to or separated from the main body 20 along a direction angled to the axial direction of the drive shaft 41. The feeding shaft 32 is either connected to or disconnected from the drive shaft 41 along its axial direction. When the powder cartridge assembly 30 is mounted on the main body 20, a pressure cap 51 is provided above the discharge section 331, and the discharge section 331 interferes with the pressure cap 51 along the vertical direction V. The pressure cap 51 has a sliding path in the horizontal direction L, and moves away from the drive shaft 41 along the sliding path to release the interference with the discharge section 331, thereby allowing the powder cartridge assembly 30 to be separated from the main body 20.

[0033] Through the powder cartridge assembly 30 along a direction at an angle to the axis of the drive shaft 41 (e.g. Figure 4 The powder box assembly 30 (in its tilted direction) is installed onto or separated from the main body 20. The feeding shaft 32 is connected to or disconnected from the drive shaft 41 along its axial direction. The installation and removal of the powder box assembly 30 is very convenient. Users do not need additional tools; they can simply slide the cover 51 horizontally to release interference with the discharge section 331, achieving rapid separation of the powder box assembly 30 and avoiding the risk of powder leakage. Furthermore, when disassembling the powder box assembly 30, the impact generated by moving it away from the drive shaft 41 will cause residual powder from the discharge port 332 to fall into the target receiving port, preventing residual powder from falling to the bottom of the powder dispenser or inside the machine body, thus avoiding hard-to-clean dead corners.

[0034] The pressure cover 51 can be equipped with a handle to facilitate its disassembly and installation. The handle can be L-shaped to facilitate the user's fingers to pinch and push. The vertical section of the L-shaped handle is located on the side of the pressure cover 51, and the horizontal section extends away from the main body 20 along the sliding direction of the pressure cover 51, forming a lever structure to reduce sliding resistance.

[0035] Reference Figure 4When installing the powder cartridge assembly 30, the user pushes it into the machine body at an angle to the axial direction of the drive shaft 41. Specifically, the end of the feeding shaft 32 extending into the discharge sleeve 33 is lower, while the end of the feeding shaft 32 that is connected to the drive shaft 41 is higher. After one end of the powder cartridge assembly 30 contacts the machine body, the other end is slowly inserted into the machine body, and the feeding shaft 32 and drive shaft 41 automatically align. Then, the powder cartridge assembly 30 is moved along the axial direction of the drive shaft 41 towards the drive shaft 41 to achieve the transmission connection between the feeding shaft 32 and the drive shaft 41. Finally, the pressure cap 51 is pushed back to its original position along the sliding path of the pressure cap 51, so that it re-forms an interference fit with the discharge sleeve 33, thereby limiting the upward movement of the powder cartridge assembly 30 and ensuring stability and sealing during operation.

[0036] When disassembling the powder cartridge assembly 30, first slide the pressure cap 51 horizontally to disengage it from the interference fit with the discharge sleeve 33, thus releasing the restriction on the powder cartridge assembly 30. Then, move the powder cartridge assembly 30 axially toward the discharge port 332 along the drive shaft 41, disengaging the feeding shaft 32 from the drive shaft 41. Next, lift the powder cartridge assembly 30 at an angle to the drive shaft 41, allowing it to smoothly detach from the machine body. As the powder cartridge assembly 30 moves toward the discharge port 332, it impacts the main body 20. The vibration generated by the impact causes any residual powder in the discharge port 332 to fall into the target receiving port, effectively preventing residual powder from spilling into the main body 20 or onto the equipment surface, maintaining a clean operating environment. The entire disassembly process does not require tilting the powder cartridge 31 or additional hammering, greatly improving maintenance convenience and hygiene, making it particularly suitable for applications with high cleanliness requirements.

[0037] In one embodiment, the main body 20 is provided with a limiting block 24, and the bottom of the powder box assembly 30 is provided with a locking block 34; the locking block 34 interferes with the limiting block 24 along the axial direction of the drive shaft 41, and along the axial direction of the drive shaft 41, the limiting block 24 is used to restrict the locking block 34 from moving away from the drive shaft 41.

[0038] When the toner cartridge assembly 30 is installed into the machine body at an angle, the engagement of the locking block 34 and the limiting block 24 provides a tactile feel for the toner cartridge assembly 30 being properly installed. As the toner cartridge assembly 30 moves axially toward the drive shaft 41, the locking block 34 passes over the limiting block 24 in the direction toward the drive shaft 41, allowing the user to easily perceive the connection between the feeding shaft 32 and the drive shaft 41. The limiting block 24 restricts the displacement of the toner cartridge assembly 30 away from the drive shaft 41, ensuring precise alignment between the feeding shaft 32 and the drive shaft 41. The engagement structure of the limiting block 24 and the locking block 34 effectively prevents the toner cartridge assembly 30 from loosening or detaching due to vibration during operation, further improving connection reliability. During disassembly, first release the pressure cap 51 to limit the movement, then move the toner cartridge assembly 30 axially along the drive shaft 41. Since the locking block 34 needs to pass over the limiting block 24 in a direction away from the drive shaft 41, the user needs to apply slight force. This allows the toner cartridge assembly 30 to impact the main body 20 during movement, using the impact vibration to ensure that residual toner falls fully into the receiving container. This structure is simple and reliable, significantly enhancing assembly positioning accuracy and operational safety.

[0039] The guiding structure of the limiting block 24 and the locking block 34 simplifies the alignment process, enabling the powder box assembly 30 to automatically complete the transmission connection during installation.

[0040] Optional, refer to Figure 2 Along the axial direction of the drive shaft 41, the limiting block 24 is provided with a first guide surface 241 and a second guide surface 242 that are interconnected. The first guide surface 241 and the second guide surface 242 are arranged sequentially from the drive shaft 41 to the discharge port 332. The slope of the first guide surface 241 is greater than that of the second guide surface 242. The slope of the second guide surface 242 is gentler, which facilitates the smooth passage of the locking block 34 along the first guide surface 241 over the limiting block 24 during the installation of the powder cartridge assembly 30. The slope of the first guide surface 241 is steeper, which guides the locking block 34 to rise and pass over the limiting block 24 during disassembly, generating clear resistance feedback and enhancing the operating feel. At the same time, the steeper first guide surface 241 can reliably limit the powder cartridge assembly 30. The geometric design of the guide surfaces takes into account both assembly smoothness and disassembly self-checking function, ensuring that the powder cartridge assembly 30 remains stably connected under vibration conditions, while optimizing the user interaction experience. In addition, the resistance change generated by the second guide surface 242 during disassembly can help the user judge the connection status and avoid misoperation. It can also provide appropriate collision to shake off the residual powder at the discharge port 332.

[0041] The locking block 34 is provided with a third guide surface 343 that cooperates with the limiting block 24; from the drive shaft 41 to the discharge port 332, the third guide surface 343 is inclined away from the powder box 31. The inclination of the third guide surface 343 is adapted to the first guide surface 241, ensuring that the locking block 34 slides smoothly along the surface of the limiting block 24 during installation, reducing assembly resistance. This design allows users to clearly perceive the locking point during installation, improving operational intuitiveness. At the same time, the cooperation between the third guide surface 343 and the limiting block 24 creates reverse resistance during disassembly, working in conjunction with the second guide surface 242 to enhance anti-detachment performance and ensure safe operation of the equipment.

[0042] Reference Figures 4 to 5 The beverage machine 100 also includes a mixer 50 for mixing powder and liquid from the outlet 332 to form a beverage. The mixer 50 includes a guide 52 having an upper opening 521 and a guide groove 522 extending axially along the drive shaft 41. A pressure cap 51 has a guide block 512, and the guide groove 522 defines a sliding path. The guide block 512 extends into the guide groove 522 and moves toward the drive shaft 41 to close the upper opening 521. The pressure cap 51 and the guide 52 together define a guide chamber 523, and the outlet section 331 extends into the guide chamber 523 to connect the outlet 332 to the guide chamber 523.

[0043] The pressure cap 51 helps to limit the position of the powder cartridge assembly 30. Through the coordinated action of the pressure cap 51 and the guide component 52, it ensures the precise alignment of the discharge port 332 within the guide hopper 523, effectively preventing powder leakage. When the pressure cap 51 is closed, the guide block 512 on it slides along the guide groove 522, making operation very convenient. Stable locking and quick disassembly of the powder cartridge assembly 30 can be achieved without setting additional components to limit its position, simplifying the overall structure and reducing manufacturing costs. The sliding path of the pressure cap 51 and the cooperation of the guide groove 522 further optimize the smoothness of operation.

[0044] In one embodiment, the pressure cap 51 covers the upper opening 521 and, together with the guide member 52, defines the guide bin 523, with the discharge section 331 extending into the guide bin 523. Vertically, the pressure cap 51 interferes with the main body 20. The main body 20 further limits the pressure cap 51, ensuring that it will not shift due to vibration or external force when closed, thereby maintaining a reliable connection between the powder box assembly 30 and the discharge mechanism. By coordinating the constraint of the powder box assembly 30 at multiple points, the stability and sealing performance of the entire assembly are improved, effectively preventing loosening, powder leakage, or misalignment during operation. Simultaneously, the vertical positioning provides the user with a clear sense of positioning during opening and closing operations, further optimizing the human-machine interface experience.

[0045] Reference Figures 4 to 7The drive shaft 41 includes a first cylindrical portion 411, and one end of the feeding shaft 32 includes a first shaft portion 321. The first shaft portion 321 extends into the first cylindrical portion 411 to achieve a transmission connection between the feeding shaft 32 and the drive shaft 41. The beverage machine 100 also includes a motor 42 and a gearbox 43 disposed on the main body 20. The rotation of the motor 42 is reduced by the gearbox 43 and then output from the first cylindrical portion 411, such as... Figure 7 As shown, the motor 42 and the first cylinder 411 are located on the same side of the gearbox 43. The output torque of the gearbox 43 is directly transmitted to the feeding shaft 32, reducing power loss, achieving stable power transmission, and ensuring high transmission efficiency, thus ensuring continuous feeding and precise quantity control during beverage preparation. In addition, the first shaft 321 extending into the first cylinder 411 simplifies the assembly process. Besides transmitting power and reducing power loss during power transmission, it also serves to fix the powder box assembly 30, effectively limiting the movement of the powder box assembly 30 along the direction perpendicular to the drive shaft 41 axis, further improving the stability of the powder box assembly 30 in the working state.

[0046] The axial transmission connection between the drive shaft 41 and the feeding shaft 32 ensures the stability and efficiency of power transmission, thereby improving the reliability of beverage preparation.

[0047] The first cylindrical part 411 and the first shaft part 321 can be connected by a spline to ensure a stable connection and convenient disassembly and assembly during transmission. This effectively transmits torque while allowing for axial fine adjustment, avoiding jamming caused by assembly deviations.

[0048] In one embodiment, a plurality of first transmission ribs 412 are spaced apart circumferentially inside the first cylindrical portion 411, and a plurality of second transmission ribs 322 are spaced apart circumferentially on the outer periphery of the first shaft portion 321. The first cylindrical portion 411 and the first shaft portion 321 are configured such that, along the axial direction of the feeding shaft 32, the length of the first shaft portion 321 is greater than the length of the second transmission ribs 322, that is, the second transmission ribs 322 do not extend to the end of the first shaft portion 321 that connects to the first cylindrical portion 411. A first guide portion 413 is provided on the first transmission rib 412, and the first guide portion 413 cooperates with the first shaft portion 321 to guide the alignment of the first shaft portion 321 within the first cylindrical portion 411.

[0049] The guiding structure is specifically configured such that when the first shaft portion 321 is inserted into the first cylindrical portion 411, the inclined or arc-shaped design of the first guide portion 413 can contact the end of the first shaft portion 321, and during axial movement, it forces the first shaft portion 321 to produce a slight radial displacement adjustment until the first shaft portion 321 and the first cylindrical portion 411 achieve precise automatic alignment. This alignment guiding function significantly reduces the difficulty of manual precise alignment during installation, especially in installation environments where direct visual observation is not convenient, ensuring that the first shaft portion 321 can smoothly and without jamming slide into the preset transmission engagement position within the first cylindrical portion 411.

[0050] The design of multiple first transmission ribs 412 and multiple second transmission ribs 322 not only enhances the strength of the transmission structure but also achieves rapid and accurate alignment of the first shaft portion 321 within the first cylindrical portion 411 through the precise guidance of the first guide portion 413. This design effectively reduces adjustment time during assembly, improves production efficiency, and ensures the stability and reliability of the transmission connection. During transmission, the first transmission ribs 412 and second transmission ribs 322 mesh with each other, transmitting torque while further improving transmission accuracy. Furthermore, the design that the length of the first shaft portion 321 is greater than the length of the second transmission ribs 322 provides greater tolerance for assembly errors. Even with certain assembly deviations, alignment can be achieved smoothly through the guidance of the first guide portion 413, avoiding transmission failures caused by improper assembly. This structure ensures both transmission stability and ease of assembly.

[0051] Furthermore, the first guide portion 413 is preferably a guide slope or guide arc surface disposed at the end of the first transmission rib 412. The guide slope or guide arc surface extends smoothly from the end edge of the first transmission rib 412 toward the inner wall of the first cylindrical portion 411. This geometric configuration effectively reduces the initial contact stress when the first shaft portion 321 is inserted, disperses possible local impact loads, thereby protecting the end structures of the first transmission rib 412 and the second transmission rib 322, reducing wear caused by repeated disassembly and assembly, and extending the service life of the transmission components. At the same time, this smooth transition design maximizes the guiding contact area, improves the stability and reliability of the guiding process, and enables the self-alignment process to be successfully completed through the guiding action even in the presence of minor manufacturing tolerances or assembly deviations, ensuring the continuity and stability of power transmission.

[0052] The first cylindrical portion 411 and the first shaft portion 321 can also be configured such that: the first transmission rib 412 is provided with a second guide portion 414, and the second guide portion 414 cooperates with the second transmission rib 322 to guide the first shaft portion 321 to rotate relative to the first cylindrical portion 411.

[0053] The second guide part 414 prevents the first transmission rib 412 and the second transmission rib 322 from directly abutting axially during the transmission connection between the feeding shaft 32 and the drive shaft 41. Under the action of the second guide part 414, the first transmission rib 412 and the second transmission rib 322 are axially guided, and the second guide part 414 can precisely guide the second transmission rib 322 to move along a predetermined trajectory, ensuring that the first transmission rib 412 and the second transmission rib 322 achieve a transmission connection. This design not only reduces friction and wear during transmission, extending the service life of components, but also improves transmission efficiency and precision, enabling the beverage machine 100 to operate more stably and reliably when making beverages.

[0054] The second guide portion 414 is preferably a guide chamfer or curved transition structure disposed on the circumferential sidewall of the first transmission rib 412. This design allows the second guide portion 414 to form a smooth contact interface with the corresponding surface of the second transmission rib 322 when the first shaft portion 321 and the first cylindrical portion 411 tend to rotate relative to each other in the transmission connection state (e.g., during the initial engagement stage). This guide structure effectively disperses circumferential contact stress, significantly reduces collision impact and friction noise between transmission ribs, and guides the first transmission rib 412 and the second transmission rib 322 to quickly enter a precise engagement state. This design is particularly suitable for installation environments where direct visual observation is inconvenient, avoiding jamming or abnormal wear caused by hard impacts, and improving the durability and smoothness of operation of the transmission system.

[0055] The first cylindrical portion 411 and the first shaft portion 321 can also be configured such that: the second transmission rib 322 is provided with a third guide portion 323, and the third guide portion 323 cooperates with the first transmission rib 412 to guide the first shaft portion 321 to rotate relative to the first cylindrical portion 411.

[0056] The third guide portion 323 is preferably a guide chamfer or rounded transition structure provided at the end or circumferential sidewall of the second transmission rib 322. This structure forms a continuous contact interface with the corresponding surface of the first transmission rib 412 during transmission, effectively dispersing frictional forces and impact loads during relative rotation, thereby reducing noise and preventing jamming. This configuration is particularly suitable for scenarios where the powder box assembly 30 is blindly disassembled and assembled, ensuring the reliability and durability of the transmission connection. For example, the guide slope design of the third guide portion 323 provides smooth guidance when the first shaft portion 321 and the first cylinder portion 411 initially mesh, avoiding component damage caused by hard collisions. Simultaneously, this guide structure, in conjunction with the first guide portion 413 and the second guide portion 414, forms a multi-layered self-centering and buffering mechanism, further improving transmission accuracy and overall equipment stability.

[0057] The second guide portion 414 is provided on both sides of the end of the first transmission rib 412, and the third guide portion 323 is provided on both sides of the end of the second transmission rib 322, so as to enable bidirectional guidance and realize the quick connection between the first cylinder portion 411 and the first shaft portion 321.

[0058] The design of the aforementioned multiple guide parts not only transmits power but also facilitates assembly. Furthermore, it allows for self-alignment during assembly (preventing jamming) and preventing assembly failure due to misalignment of the powder box assembly 30. During assembly, the first shaft portion 321 contacts the third guide portion 323 of the first cylinder portion 411 first, achieving initial alignment and guidance. Subsequently, the second guide portion 414 and / or the third guide portion 323 collide, providing axial guidance. This dual guidance prevents jamming during assembly.

[0059] The first cylindrical portion 411 and the first shaft portion 321 can also be configured such that the number of the first transmission ribs 412 is an integer multiple of the number of the second transmission ribs 322.

[0060] This configuration significantly improves the reliability and fatigue resistance of the transmission system by balancing load distribution and optimizing contact stress distribution. For example, when the number of first transmission ribs 412 is an integer multiple (e.g., 2, 3, or 4 times) of the number of second transmission ribs 322, the circumferential spacing of the first transmission ribs 412 can be designed to be uniformly distributed, while the second transmission ribs 322 are distributed at specific phase angles. The relative number design of the first transmission ribs 412 and the second transmission ribs 322 can significantly reduce the amount of useless backlash in the initial stage of transmission. For example, if the number of first transmission ribs 412 is 6 (interval of 60°) and the number of second transmission ribs 322 is 3 (interval of 120°), the rotation angle of the feed shaft 32 can be reduced during assembly, thus reducing the thrust required to assemble the powder box assembly 30.

[0061] The first cylindrical portion 411 and the first shaft portion 321 can also be configured such that: the first cylindrical portion 411 is provided with a coaxial second shaft portion 415, the end of the first shaft portion 321 is provided with a coaxial second cylindrical portion 325, the feeding shaft 32 is connected to the drive shaft 41 for transmission, and the second shaft portion 415 extends at least partially into the second cylindrical portion 325.

[0062] This nested structure further enhances the coaxial accuracy and anti-eccentric load capability of the transmission system. The cooperation between the second shaft portion 415 and the second cylinder portion 325 can further suppress radial movement. When the first shaft portion 321 and the first cylinder portion 411 are fully inserted, the second shaft portion 415 is simultaneously inserted into the second cylinder portion 325, forming a double centering constraint: the first layer achieves torque transmission and circumferential positioning through the meshing surfaces of the first transmission rib 412 and the second transmission rib 322, and the second layer provides radial support through the cylindrical mating surfaces of the second shaft portion 415 and the second cylinder portion 325. This design significantly reduces eccentric vibration during transmission, especially at high speeds, avoiding resonance of the powder box assembly 30 caused by centrifugal force.

[0063] Reference Figures 8 to 11 The discharge port 332 is at least partially located on the peripheral wall of the discharge section 331 and extends axially along the discharge section 331; the discharge port 332 includes a first edge 333 and a second edge 334 located on the peripheral wall of the discharge section 331; along the vertical direction V, the plane passing through the axis of the feeding shaft 32 is defined as the first plane P1, as shown below. Figure 8 As shown in the image.

[0064] The discharge port 332 is configured such that the first edge 333 and the second edge 334 are located on the same side of the first plane P1, and the central angle α between the first edge 333 and the second edge 334 and the axis of the feeding shaft 32 is between 60 degrees and 150 degrees. This arc-shaped opening design of the discharge port 332 allows the powder to be discharged smoothly circumferentially, reducing stress concentration during discharge and preventing clogging and splashing. Preferably, the central angle α between the first edge 333 and the second edge 334 and the axis of the feeding shaft 32 is between 90 degrees and 120 degrees, balancing flow control and structural strength, ensuring smooth discharge and easy cleaning. The position, shape, and angle of the discharge port 332, in conjunction with the rotation direction of the feeding shaft 32 and the powder-pushing plane at the end of the feeding shaft 32, ensure efficient powder pushing while minimizing residual powder when removing the powder box assembly 30. In addition, the first edge 333 and the second edge 334 are located on the same side of the first plane P1, which can also reduce the impact of moisture inside the mixer 50 on the clumping of residual powder at the end of the feed shaft 32.

[0065] In one embodiment, the discharge port 332 can also be configured such that: the first edge 333 is located above the second edge 334, and relative to the axis of the feeding shaft 32, the central angle β2 of the second edge 334 to the first plane P1 is greater than 0 degrees and less than 60 degrees, preferably 5 degrees to 30 degrees, and the central angle β1 of the first edge 333 to the first plane P1 is greater than the central angle β2 of the second edge 334 to the first plane P1. The second edge 334 will not be perpendicular downwards, and the central angle β2 of the second edge 334 to the first plane P1 is less than 60 degrees to facilitate the downward flow of powder and prevent powder accumulation. At the same time, it avoids the moisture inside the mixer 50 from directly acting on the edge of the discharge port 332, reducing the risk of powder agglomeration.

[0066] In one embodiment, the discharge port 332 can also be configured such that: the discharge section 331 includes an end wall 335 connecting to the peripheral wall, a portion of the discharge port 332 is located on the end wall 335, and the portion of the discharge port 332 on the end wall 335 communicates with the portion of the discharge port 332 on the peripheral wall, together forming a fan-shaped opening projected along the axial direction of the feeding shaft 32. The shape design of the discharge port 332 facilitates the discharge of powder and improves the thoroughness of discharge. The arc edge of the fan-shaped projection is coordinated with the rotation direction of the feeding shaft 32, so that the powder is smoothly discharged along the arc trajectory under the combined action of centrifugal force and gravity, reducing resistance and accumulation. This fan-shaped design also optimizes the stress distribution around the discharge port 332, avoids local wear aggravation, and extends the service life of the component.

[0067] In one embodiment, the discharge port 332 may also be configured such that: the second edge 334 has a first end 336 connecting the end wall 335 and an opposite second end 337, and the second edge 334 gradually moves away from the first plane P1 in the direction from the first end 336 to the second end 337. The inclined arrangement of the second edge 334 guides the powder to be naturally and gradually discharged from the discharge port 332 during the discharge process, effectively preventing the powder from accumulating at the discharge port 332.

[0068] In one embodiment, the discharge port 332 can also be configured such that the end wall 335 slopes downwards towards the feeding shaft 32 along the vertical direction V. The inclined extension of the end wall 335 in the vertical direction V causes the bottom of the discharge port 332 to gradually narrow, promoting smooth sliding of the powder under gravity and further reducing residue. This inclined structure works synergistically with the centrifugal force generated by the rotation of the feeding shaft 32, enhancing the uniformity of discharge. Simultaneously, the inclination angle of the end wall 335 is controlled between 5 and 45 degrees to avoid excessive steepness leading to a decrease in strength or excessively gentle inclination causing powder accumulation, thus balancing mechanical properties and process requirements.

[0069] In one embodiment, the discharge port 332 can also be configured such that, along the horizontal direction L, the end wall 335 is inclined from the center of the discharge section 331 toward the feeding shaft 32. The inclination of the end wall 335 in the horizontal direction L causes the material storage space at the discharge port 332 to gradually narrow radially along the discharge section 331, reducing powder residue at the discharge port 332. Furthermore, this design effectively disperses the impact force during powder discharge, reducing the risk of localized blockage, while adapting to the discharge requirements of powders with different particle sizes and flowability. Combined with the optimized matching of the feeding shaft 32's rotation speed and the geometry of the discharge port 332, discharge efficiency and ease of cleaning are further enhanced.

[0070] Continue to refer to Figure 5 and Figure 6 The discharge sleeve 33 has a radially extending edge 35 on its peripheral wall, and a hook 351 is provided on the edge 35. The discharge sleeve 33 has a preset rotation range relative to the powder box 31. Within the preset rotation range, the hook 351 switches between a locked state and a released state with the powder box 31 along the axial direction of the feeding shaft 32. The discharge sleeve 33 can be locked and released relative to the powder box 31, which facilitates the disassembly and installation of the discharge sleeve 33. When in the locked state, the edge 35 is engaged with the powder box 31 to ensure structural stability and prevent loosening during the mixing process; in the released state, rotating the discharge sleeve 33 to a preset angle disengages the edge 35, allowing it to be pulled out for cleaning. This design balances sealing and convenience, effectively preventing accidental opening during operation, while also supporting rapid maintenance and improving the user experience.

[0071] The powder box 31 has a slot 315 for the hook 351 to pass through. The hook 351 is positioned to pass through the slot 315. The discharge sleeve 33 rotates at an angle relative to the powder box 31, and the hook 351 engages with the edge of the slot 315 to lock the discharge sleeve 33 relative to the powder box 31. Alternatively, the slot 315 can be omitted, and the hook 351 can be directly engaged with the rib plate of the powder box assembly 30.

[0072] The aforementioned features, such as the pressure cap 51, the transmission connection structure between the feeding shaft 32 and the drive shaft 41, and the design of the discharge port 332, collectively achieve the application objective of simple structure and convenient maintenance, significantly improving the user's operating experience and the service life of the equipment.

[0073] It should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0074] The detailed descriptions listed above are merely specific descriptions of feasible implementations of this utility model, and are not intended to limit the scope of protection of this utility model. All equivalent implementations or modifications made without departing from the spirit of this utility model should be included within the scope of protection of this utility model.

Claims

1. A beverage machine, comprising: Main body; A powder cartridge assembly is detachably disposed on the main body. The powder cartridge assembly includes a powder cartridge and a feeding shaft. The feeding shaft is at least partially disposed inside the powder cartridge. The powder cartridge assembly also includes a discharge sleeve. The discharge sleeve is connected to the powder cartridge and has a discharge section. The discharge section is provided with a discharge port. A drive shaft is provided on the main body. One end of the feeding shaft is connected to the drive shaft for transmission, and the other end of the feeding shaft extends into the discharge sleeve to convey the powder in the powder box to the discharge port. The powder falls into the target receiving port through the discharge port. The powder cartridge assembly is characterized in that: it is installed on or separated from the main body along a direction at an angle to the axial direction of the drive shaft; the feeding shaft is connected to or disconnected from the drive shaft along the axial direction of the drive shaft; a pressure cover is provided above the discharge section; the discharge section interferes with the pressure cover in the vertical direction; the pressure cover has a horizontal sliding path; the pressure cover moves away from the drive shaft along the sliding path to release the interference with the discharge section, thereby allowing the powder cartridge assembly to separate from the main body.

2. The beverage machine according to claim 1, characterized in that, The main body is provided with a limiting block, and the bottom of the powder box assembly is provided with a locking block; the locking block interferes with the limiting block along the axial direction of the drive shaft; along the axial direction of the drive shaft, the limiting block is used to restrict the locking block from moving away from the drive shaft.

3. The beverage machine according to claim 2, characterized in that, Along the axial direction of the drive shaft, the limiting block is provided with a first guide surface and a second guide surface that are connected to each other. The first guide surface and the second guide surface are arranged sequentially from the drive shaft to the discharge port, and the slope of the first guide surface is greater than the slope of the second guide surface.

4. The beverage machine according to claim 2, characterized in that, The card block is provided with a third guide surface that cooperates with the limiting block; the third guide surface is inclined away from the powder box in the direction from the drive shaft to the discharge port.

5. The beverage machine according to claim 1, characterized in that, It also includes a mixer for mixing powder and liquid from the outlet; the mixer includes a guide having an upper opening and a guide groove extending axially along the drive shaft; the pressure cap is provided with a guide block, the guide groove defining the sliding path, the guide block extending into the guide groove and moving toward the drive shaft to close the upper opening; the pressure cap and the guide together define a guide bin, the outlet extending into the guide bin to connect the outlet to the guide bin.

6. The beverage machine according to claim 1, characterized in that, It also includes a mixer for mixing powder and liquid from the outlet; the mixer includes a guide with an upper opening, a pressure cap is disposed on the upper opening and together with the guide to define a guide hopper, the discharge section extends into the guide hopper; in the vertical direction, the pressure cap interferes with the main body.

7. The beverage machine according to any one of claims 1 to 6, characterized in that, The drive shaft includes a first cylindrical section, and one end of the feeding shaft includes a first shaft section. The first shaft section extends into the first cylindrical section to realize the transmission connection between the feeding shaft and the drive shaft. The beverage machine also includes a motor and a gearbox disposed on the main body. The rotation of the motor is reduced by the gearbox and output by the first cylindrical section. The motor and the first cylindrical section are located on the same side of the gearbox.

8. The beverage machine according to claim 7, characterized in that, The first cylindrical portion has a plurality of first transmission ribs spaced apart along its inner circumferential direction, and the first shaft portion has a plurality of second transmission ribs spaced apart along its outer circumferential direction; the first cylindrical portion and the first shaft portion are configured in at least one of the following ways: Along the axial direction of the feeding shaft, the length of the first shaft portion is greater than the length of the second transmission rib; the first transmission rib is provided with a first guide portion, which cooperates with the first shaft portion to guide the alignment of the first shaft portion within the first cylindrical portion; The first transmission rib is provided with a second guide portion, which cooperates with the second transmission rib to guide the first shaft portion and the first cylinder portion to rotate relative to each other; The second transmission rib is provided with a third guide portion, which cooperates with the first transmission rib to guide the first shaft portion and the first cylinder portion to rotate relative to each other; The number of the first transmission ribs is an integer multiple of the number of the second transmission ribs; The first cylindrical section is provided with a coaxial second shaft section, and the end of the first shaft section is provided with a coaxial second cylindrical section. The feeding shaft is connected to the drive shaft for transmission, and the second shaft section extends at least partially into the second cylindrical section.

9. The beverage machine according to any one of claims 1 to 6, characterized in that, The discharge port is at least partially located on the peripheral wall of the discharge section and extends axially along the discharge section; the discharge port includes a first edge and a second edge located on the peripheral wall of the discharge section; along the vertical direction, a plane passing through the axis of the feeding shaft is defined as a first plane, and the discharge port is configured in at least one of the following ways: With respect to the first plane, the first edge and the second edge are located on the same side of the first plane, and the central angles of the first edge and the second edge with respect to the axis of the feeding shaft are between 60 degrees and 150 degrees. The first edge is located above the second edge. Relative to the axis of the feeding shaft, the central angle from the second edge to the first plane is greater than 0 degrees and less than 60 degrees, and the central angle from the first edge to the first plane is greater than the central angle from the second edge to the first plane. The discharge section includes an end wall connected to the peripheral wall, a portion of the discharge port is located on the end wall, and the discharge port portion on the end wall communicates with the discharge port portion on the peripheral wall, together forming an opening that is fan-shaped when projected along the axial direction of the feeding shaft. The second edge has a first end connecting the end wall and an opposite second end, and in the direction from the first end to the second end, the second edge gradually moves away from the first plane; Along the vertical direction, the end wall is inclined from top to bottom toward the feeding shaft; Along the horizontal direction, the end wall is inclined from the center of the discharge section toward the feed shaft.

10. The beverage machine according to any one of claims 1 to 6, characterized in that, The peripheral wall of the discharge sleeve extends radially outward to form an edge, and a hook is provided on the edge. The discharge sleeve has a preset rotation range relative to the powder box. Within the preset rotation range, the hook switches between a locked state and a released state with the powder box along the axial direction of the feeding shaft.

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