Powder discharging sealing mechanism for powder brewing machine

Abstract

The utility model discloses a powder feeding sealing mechanism for a powder brewing machine, which comprises a machine body, and a separable powder box component is placed in a material storage cavity of the machine body. The powder box assembly comprises a powder box provided with a powder falling opening, a first transmission piece arranged on the powder box in a penetrating mode and used for driving the powder outlet piece to act, and a sealing piece movably arranged on the powder box and located below the powder falling opening. In addition, the powder discharging device further comprises a driving device arranged in the machine body, the output end of the driving device is in transmission connection with a second transmission part and a clutch assembly, and the second transmission part is used for being in transmission fit with the first transmission part so as to drive the powder discharging part to act. The clutch assembly is used for driving the sealing piece to act so as to open or close the powder falling opening. Therefore, the clutch assembly is arranged on the machine body, the overall structure of the powder box assembly is simplified, and the powder box assembly is more convenient to assemble and disassemble. In addition, the clutch assembly and the second transmission part are both driven by the same driving device, the number of parts is reduced, and the product is more compact.

Description

Technical Field

[0001] This utility model relates to the field of powder preparation technology, specifically to a powder dispensing and sealing mechanism for a powder preparation machine. Background Technology

[0002] This section provides only background information related to this application to enable those skilled in the art to understand this application more thoroughly and accurately, and it is not necessarily prior art.

[0003] Milk powder is a common food, especially for infants and the elderly. However, there are many problems with the current methods of preparing milk powder: First, it cannot be measured, resulting in inconsistent milk concentration each time it is prepared. This is detrimental to infants; too much milk powder can cause indigestion, while too little can lead to malnutrition. Second, whether canned or bagged, the lid must be opened each time the milk powder is used, exposing it to air multiple times, which can cause environmental pollution and shorten its shelf life. Third, the preparation process is complicated, time-consuming, and laborious.

[0004] The advent of automatic formula makers has made preparing formula much easier, adding convenience to people's lives. Currently available automatic formula makers only require users to pre-fill the formula powder and water; the machine then automatically adds water and formula powder according to the pre-set ratio and mixes them, greatly improving efficiency and ensuring quality. To prevent steam generated during the formula preparation process from entering the powder container and causing it to become damp and spoil, a sealing cover is installed at the powder outlet to seal the powder and maintain its quality during storage.

[0005] In order to drive the sealing cover to open or close the powder outlet, a clutch assembly that drives the sealing cover is usually set at the bottom of the milk carton. This configuration makes the overall structure of the milk carton more complex, making it difficult to assemble and disassemble, and also more troublesome to clean. Utility Model Content

[0006] In order to overcome the defects of the prior art, the present invention provides a powder dispensing sealing mechanism for a powder brewing machine. By setting the clutch assembly on the machine body, the overall structure of the powder box assembly is simplified, making it easier to assemble and disassemble, and also easier to clean.

[0007] The technical solution adopted by this utility model to solve its problem is:

[0008] A powder dispensing and sealing mechanism for a powder brewing machine includes a body, wherein a detachable powder box assembly is placed in the material storage chamber of the body, wherein:

[0009] The powder box assembly includes a powder box for storing powder and having a powder outlet, a first transmission member that passes through the powder box and is used to drive the powder dispensing component, and a sealing member that is movably disposed on the powder box and located below the powder outlet.

[0010] Additionally, it includes a drive device disposed within the machine body. The output end of the drive device is connected to a second transmission member and a clutch assembly. The second transmission member is at least partially located within the storage chamber and is used to drive the powder discharge member in a transmission cooperation with the first transmission member. The clutch assembly is at least partially located within the storage chamber and is used to drive the seal to open or close the powder discharge port.

[0011] Furthermore, in the initial state, when the drive device drives the clutch assembly to operate, it can drive the seal to operate until the seal is limited and fixed and the powder outlet is opened or closed. Then, the drive device drives the clutch assembly to operate and is in an idle state.

[0012] Furthermore, the clutch assembly includes a transmission seat rotatably mounted on the body, a transmission ring rotatably mounted in the transmission seat and connected to the output end of the drive device, and an elastic telescopic member that extends and retracts on the transmission seat and engages with the transmission ring.

[0013] The machine body has a mounting groove for mounting the transmission seat. At least two limiting protrusions are arranged circumferentially in the mounting groove. The transmission seat has a first protrusion that can abut against the limiting protrusions to limit their rotation position.

[0014] The mounting groove is also provided with a clearance groove for the elastic telescopic member to extend out. In the initial state, the driving device drives the transmission ring to rotate, and through its transmission cooperation with the elastic telescopic member, drives the transmission seat to rotate. At this time, the elastic telescopic member does not perform telescopic movement. Until the first protrusion abuts against the limiting protrusion, the transmission seat is limited and fixed, and the elastic telescopic member is connected to the clearance groove. Subsequently, when the driving device drives the transmission ring to rotate in the same direction, it can drive the elastic telescopic member to perform telescopic movement to be in an idle state.

[0015] Furthermore, the clutch assembly and the seal are in a differential transmission engagement, wherein:

[0016] When the drive device drives the seal to move through the clutch assembly, due to the transmission difference angle or transmission gap, the transmission seat can rotate to a certain angle without load until the elastic telescopic member passes the clearance groove, at which point the clutch assembly begins to drive the seal to move.

[0017] Furthermore, the powder outlet is located at the bottom of the powder box and extends vertically. The sealing element is a first sealing cover plate that is rotatably disposed at the bottom of the powder box to cover or expose the powder outlet. The first sealing cover plate is in differential angle transmission engagement with the transmission seat.

[0018] Furthermore, the powder outlet is located at the bottom of the powder box and extends vertically through it, and the sealing element is a second sealing cover plate that is slidably disposed at the bottom of the powder box to cover or expose the powder outlet;

[0019] The clutch assembly also includes a gear mounted on the transmission seat and a rack meshing with the gear, the rack engaging with the second sealing cover plate in a differential transmission engagement.

[0020] Furthermore, the driving device is a drive motor, and the transmission ring is sleeved on the output shaft of the drive motor and is connected to the output shaft via a differential angle transmission, wherein:

[0021] The outer wall of the transmission ring is provided with several protrusions. When the driving device drives the transmission ring to rotate, the protrusions can abut against the elastic telescopic member to achieve transmission engagement. In the initial state, if the protrusions abut against the elastic telescopic member to extend it, the protrusions are also subjected to the rebound force of the elastic telescopic member. If the transmission ring is not fixed by the output shaft at this time, due to the transmission difference angle, the elastic telescopic member can drive the transmission ring to rotate through the protrusions until the elastic telescopic member is fully reset. If the transmission ring is fixed by the output shaft at this time, when the output shaft rotates in the opposite direction, the output shaft gradually disengages from the transmission ring. The elastic telescopic member can drive the transmission ring to rotate in the opposite direction through the protrusions until the elastic telescopic member is fully reset. Subsequently, the output shaft and the transmission ring begin to connect.

[0022] Furthermore, the powder box is provided with a guide tube that communicates with its interior, and the powder dispensing component is a powder dispensing screw that passes through the guide tube. One end of the powder dispensing screw is in transmission cooperation with the first transmission component.

[0023] Furthermore, the first transmission component and the powder discharge screw are connected by a differential angle transmission, and the transmission differential angle between the first transmission component and the powder discharge screw is greater than the transmission differential angle or transmission gap between the clutch assembly and the seal.

[0024] When the drive device drives the first transmission component and the clutch assembly to operate, the clutch assembly first drives the seal to operate to open or close the powder discharge port, and then the first transmission component drives the powder discharge screw to rotate to achieve material discharge.

[0025] Furthermore, the powder box has a powder storage cavity that communicates with the guide tube. A guide impeller is rotatably disposed within the powder storage cavity, and the guide impeller is connected to the first transmission component.

[0026] In summary, the powder dispensing and sealing mechanism for a powder brewing machine provided by this utility model has the following beneficial effects:

[0027] (1) The powder dispensing sealing mechanism of this utility model simplifies the overall structure of the powder box assembly by placing the clutch assembly on the machine body instead of at the bottom of the powder box assembly, making it easier to assemble and disassemble and easier to clean. In addition, the clutch assembly and the second transmission component are driven by the same drive device, thereby reducing the number of parts, reducing costs, and reducing the size and weight of the product, making it more compact.

[0028] (2) The powder dispensing sealing mechanism of this utility model makes the powder dispensing port open at the bottom of the powder box and is set through the top and bottom, so that the powder dispensing is smoother and the powder blockage is less likely to occur. In addition, the sealing element is movably set at the bottom of the powder box and below the powder dispensing port. When the sealing element is rotated or slid in a straight line, it can cover or expose the powder dispensing port to achieve lower plane sealing. Its sealing performance is better and can greatly reduce the risk of powder leakage. Attached Figure Description

[0029] Figure 1 This is an exploded view of the powder dispensing and sealing mechanism for the powder brewing machine of this utility model;

[0030] Figure 2 for Figure 1 A structural diagram from another perspective;

[0031] Figure 3 This is an exploded view of the powder box assembly in the powder dispensing and sealing mechanism of the powder brewing machine of this utility model;

[0032] Figure 4 for Figure 3 A structural diagram from another perspective;

[0033] Figure 5 This is a cross-sectional schematic diagram of the powder box assembly in the powder dispensing and sealing mechanism for the powder brewing machine of this utility model;

[0034] Figure 6 This is an exploded schematic diagram of a portion of the powder dispensing and sealing mechanism for the powder brewing machine of this utility model;

[0035] Figure 7 This is an exploded schematic diagram of the clutch assembly in the powder feeding sealing mechanism of the powder brewing machine of this utility model;

[0036] Figure 8 for Figure 6A schematic diagram of the structure after concealing the second transmission component and the first transmission seat cover;

[0037] Figure 9 This is a cross-sectional schematic diagram of a portion of the powder dispensing and sealing mechanism for the powder brewing machine of this utility model;

[0038] Figure 10 This is an exploded view of another embodiment of the powder dispensing and sealing mechanism for a powder brewing machine according to this utility model;

[0039] Figure 11 for Figure 10 A structural diagram from another perspective;

[0040] Figure 12 This is an exploded schematic diagram of a portion of the powder dispensing and sealing mechanism for a powder brewing machine according to another embodiment of the present invention;

[0041] Figure 13 This is a cross-sectional schematic diagram of a portion of the body of a powder dispensing and sealing mechanism for a powder brewing machine, according to another embodiment of this utility model.

[0042] The meanings of the reference numerals in the attached figures are as follows:

[0043] 1. Powder cartridge assembly; 11. Powder cartridge; 111. Powder cartridge body; 1111. Guide tube section; 11111. First powder discharge hole; 1112. Powder storage chamber; 112. Powder cartridge top cover; 113. Powder cartridge bottom cover; 1131. Second powder discharge hole; 12. First sealing cover plate; 121. First locking hole; 13. First transmission component; 131. First gear; 132. Third gear; 133. Locking groove; 14. Transmission column; 141. Fourth gear; 142. Fifth gear; 15. Guide impeller; 151. Sixth gear; 16. Powder discharge screw; 161. Second gear; 17. Second sealing cover plate; 171. Second locking hole; 2. Machine body; 21. Storage chamber; 22. Second transmission component; 221, pawl; 23, clutch assembly; 231, transmission seat; 2311, transmission seat body; 23111, first protrusion; 2312, first transmission seat cover; 23121, first locking pin; 2313, second transmission seat cover; 232, transmission ring; 2321, protrusion; 2322, transmission protrusion; 233, positioning pin; 234, spring; 24, drive device; 251, first transmission gear; 252, second transmission gear; 2521, transmission shaft; 25211, transmission slot; 26, first mounting slot; 261, limiting protrusion; 262, clearance slot; 27, second mounting slot; 28, transmission plate; 281, second locking pin. Detailed Implementation

[0044] To better understand and implement this invention, the technical solutions in the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings.

[0045] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the module or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0046] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0047] Example 1

[0048] See Figure 1-8 This utility model provides a powder dispensing and sealing mechanism for a powder brewing machine, including a body 2 with a storage cavity 21 and a powder box assembly 1 detachably placed in the storage cavity 21; wherein, the powder box assembly 1 includes a powder box 11 for storing powder and having a powder dispensing port, a first transmission member 13 passing through the powder box 11 and used to drive the powder dispensing part, and a sealing member movably disposed on the powder box 11 and located below the powder dispensing port; the body 2 is provided with a drive device 24, the output end of the drive device 24 is drivenly connected to a second transmission member 22 and a clutch assembly 23, both of which are at least partially located in the storage cavity 21; when the powder box assembly 1 is placed in the storage cavity 21, the second transmission member 22 and the first transmission member 13 are driven together, and the clutch assembly 23 and the sealing member are driven together. Therefore, when the drive device 24 drives the second transmission member 22 to operate, it can drive the powder discharge member to operate through the transmission cooperation with the first transmission member 13, thereby realizing the powder discharge; when the drive device 24 drives the clutch assembly 23 to operate, it can drive the seal to operate to open or close the powder discharge port.

[0049] Therefore, by placing the clutch assembly 23 on the body 2 instead of at the bottom of the powder box assembly 1, this invention simplifies the overall structure of the powder box assembly 1, making it easier to assemble and disassemble, and also easier to clean. Furthermore, both the clutch assembly 23 and the second transmission component 22 are driven by the same drive device 24, thereby reducing the number of parts, lowering costs, and reducing the product's size and weight, making it more compact.

[0050] In this embodiment of the invention, the powder brewing machine is a milk powder brewing machine, and the powder box 11 stores milk powder inside. Of course, in other embodiments, the powder brewing machine can also be a coffee brewing machine, a soy milk brewing machine, or other powder-based beverage equipment. As long as the beverage equipment involves powder brewing, it is within the scope of protection of this application and is not limited here.

[0051] See Figure 6-8 When the drive unit 24 drives the clutch assembly 23 to operate, it can drive the seal to operate until the seal is limited and fixed and fully opened or fully closed the powder outlet. After that, the drive unit 24 drives the clutch assembly 23 to continue operating, and the clutch assembly 23 cannot be driven to operate and is in an idle state. Specifically, the clutch assembly 23 includes a transmission seat 231 rotatably mounted on the machine body 2, a transmission ring 232 rotatably mounted in the transmission seat 231 and connected to the output end of the drive unit 24, and an elastic telescopic member that is movable and telescopic on the transmission seat 231 and drives the transmission ring 232.

[0052] The machine body 2 has a first mounting groove 26 for mounting the transmission seat 231. Two limiting protrusions 261 are arranged circumferentially within the first mounting groove 26. The outer wall of the transmission seat 231 has a first protrusion 23111 that abuts against the limiting protrusions 261 to restrict its rotational position. The first mounting groove 26 also has a clearance groove 262 for the extension of an elastic telescopic member. Additionally, the outer wall of the transmission ring 232 is circumferentially provided with several protrusions 2321 for abutting against the elastic telescopic member. Thus, in the initial state, when the drive device 24 drives the transmission ring 232 to rotate, the protrusions 2321 on the transmission ring 232 abut against the elastic telescopic member, thereby driving the transmission seat 231 to rotate. At this time, the elastic telescopic member does not extend or retract; until the first protrusion 23111 on the transmission seat 231 abuts against the limiting protrusion 261 on one side (e.g., ...). Figure 8 As shown), at this time, the transmission seat 231 is limited and fixed and the elastic telescopic member is connected to the clearance groove 262. Subsequently, when the drive device 24 drives the transmission ring 232 to rotate in the same direction, it can drive the elastic telescopic member to perform telescopic movement so that the clutch assembly 23 is in an idle state.

[0053] In this embodiment of the utility model, the transmission seat 231 includes a transmission seat body 2311 and a first transmission seat cover 2312 covering the top of the transmission seat body 2311. The transmission ring 232 is rotatably disposed inside the transmission seat body 2311, and the elastic telescopic member moves radially within the transmission seat body 2311.

[0054] In this embodiment of the utility model, the elastic telescopic member includes a positioning post 233 and a spring 234 sleeved on the positioning post 233. One end of the positioning post 233 extends into the middle of the transmission seat 231 and is used to abut against the protrusion 2321 on the transmission ring 232. The other end of the positioning post 233 passes through the first protrusion 23111 and is flush with the outer wall of the first protrusion 23111. Thus, when the transmission seat 231 is limited and fixed, the positioning post 233 can overcome the elastic force of the spring 234 and move radially by driving the transmission ring 232 to rotate.

[0055] In this embodiment of the utility model, the driving device 24 is a drive motor and a gear transmission assembly that is connected to the drive motor. The gear transmission assembly includes a first transmission gear 251 and a second transmission gear 252 that mesh with each other. The first transmission gear 251 is sleeved on the output shaft of the drive motor and is connected to it for transmission. The second transmission gear 252 has a transmission shaft 2521 protruding from it. The transmission ring 232 is sleeved on the transmission shaft 2521 and is connected to it for transmission. Thus, when the drive motor is started, it can drive the transmission shaft 2521 to rotate through the meshing of the first transmission gear 251 and the second transmission gear 252.

[0056] Of course, in other embodiments, the gear transmission assembly can be omitted, and the transmission ring 232 can be directly sleeved on the output shaft of the drive motor to achieve the transmission connection, which can also achieve the same transmission effect. There is no limitation here.

[0057] Furthermore, the powder outlet is located at the bottom of the powder container 11. The sealing element is a first sealing cover 12 rotatably mounted at the bottom of the powder container 11 to cover or expose the powder outlet. The first sealing cover 12 is in differential angle engagement with the transmission seat 231. Specifically, the first transmission seat cover 2312 has a protruding first locking post 23121, and the bottom of the first sealing cover 12 has a first locking hole 121 that engages with the first locking post 23121 to achieve a transmission engagement. The first locking post 23121 and the first locking hole 121 are in differential angle engagement.

[0058] Therefore, when the first locking pin 23121 engages with the first locking hole 121 to drive the first sealing cover 12 to move, due to the transmission differential angle, the transmission seat 231 can rotate to a certain angle without load until the positioning pin 233 passes the clearance groove 262 before it starts to drive the first sealing cover 12 to rotate. Since the positioning pin 233 can only rotate circumferentially and cannot extend or retract at this time, the transmission seat 231 can be smoothly driven to rotate through the positioning pin 233, thereby smoothly driving the first sealing cover 12 to rotate to open or close the powder discharge port, thus ensuring the stability and reliability of the transmission.

[0059] Furthermore, the transmission ring 232 and the transmission shaft 2521 are also connected by a differential angle transmission. Specifically, the inner sidewall of the transmission ring 232 is provided with a plurality of transmission protrusions 2322 at intervals, and the outer side of the transmission shaft 2521 is provided with a plurality of transmission grooves 25211 that engage with the transmission protrusions 2322 to achieve transmission cooperation. The transmission protrusions 2322 and the transmission grooves 25211 are in differential angle transmission cooperation.

[0060] Therefore, in the initial state, if the protrusion 2321 on the transmission ring 232 abuts against the positioning post 233 to extend radially, the protrusion 2321 is also subjected to the rebound force of the positioning post 233. If the transmission ring 232 is not restricted and fixed by the transmission shaft 2521 at this time, due to the transmission difference angle, the positioning post 233 can drive the transmission ring 232 to rotate through the protrusion 2321 until the positioning post 233 is completely reset. Conversely, if the transmission ring 232 is restricted and fixed by the transmission shaft 2521 at this time, when the transmission shaft 2521 rotates in the opposite direction, the transmission shaft 2521 gradually disengages from the transmission ring 232, and the positioning post 233 can drive the transmission ring 232 to rotate in the opposite direction through the protrusion 2321 until the positioning post 233 is completely reset. Subsequently, the transmission shaft 2521 and the transmission ring 232 begin to be connected in transmission.

[0061] Therefore, by setting the transmission ring 232 and the transmission shaft 2521 in a differential angle transmission connection, it can be ensured that when the transmission shaft 2521 and the transmission ring 232 start to be connected, the positioning post 233 has been fully reset. This avoids the positioning post 233 from being in a radially extended state and interfering with the clearance groove 262 when the transmission shaft 2521 drives the transmission ring 232 to rotate in the opposite direction, thus preventing the rotation from being blocked. This ensures the stability and reliability of the transmission.

[0062] See Figure 3-5 The powder cartridge 11 includes a powder cartridge body 111, a powder cartridge top cover 112 covering the top of the powder cartridge body 111, and a powder cartridge bottom cover 113 covering the bottom of the powder cartridge body 111. The first sealing cover 12 is rotatably disposed at the bottom of the powder cartridge bottom cover 113. The powder cartridge body 111 is provided with a powder storage cavity 1112 for storing powder and a guide tube 1111 that communicates with the powder storage cavity 1112 and is arranged in a horizontal tube configuration. Preferably, the powder dispensing component is a powder dispensing screw 16 that passes through the guide tube 1111, and one end of the powder dispensing screw 16 is driven and engaged with the first transmission component 13. The bottom of the guide tube 1111 is provided with a first powder dropping hole 11111, and the powder cartridge bottom cover 113 is provided with a second powder dropping hole 1131 that communicates with the first powder dropping hole 11111. The first powder dropping hole 11111 and the second powder dropping hole 1131 together form a powder dropping outlet.

[0063] The first powder discharge hole 11111 and the second powder discharge hole 1131 are both vertically connected at a 180-degree angle, which makes the powder discharge smoother and reduces the likelihood of powder blockage. Furthermore, the first sealing cover 12 is rotatably mounted at the bottom of the powder box 11 and below the powder discharge port. When the first sealing cover 12 is rotated, it can cover or expose the powder discharge port to achieve a lower surface seal, resulting in better sealing performance and significantly reducing the risk of powder leakage.

[0064] Specifically, the first transmission component 13 is a first transmission disk, and the bottom of the first transmission disk is provided with a plurality of slots 133. The second transmission component 22 is a second transmission disk, and the bottom end of the second transmission disk is connected to the transmission shaft 2521. The top of the second transmission disk is provided with a plurality of claws 221 that can be inserted into and engaged with the plurality of slots 133. In addition, the top of the first transmission disk is also provided with a shaft and a first gear 131 sleeved on the shaft. The powder discharge screw 16 is provided with a second gear 161 that meshes with the first gear 131 at one end near the first transmission disk.

[0065] Therefore, when the first transmission disc is driven to rotate by the second transmission disc, the powder discharge screw 16 can be driven to rotate through the transmission meshing of the first gear 131 and the second gear 161, thereby realizing powder discharge.

[0066] Specifically, the first transmission disc and the powder discharge screw 16 are connected by a differential angle transmission. The second gear 161 is also connected to the powder discharge screw 16 by a differential angle transmission, and this differential angle is greater than the differential angle between the first transmission seat cover 2312 and the first sealing cover plate 12. Therefore, when the drive device 24 drives the first transmission disc and transmission seat 231 to operate, the transmission seat 231 first rotates the first sealing cover plate 12 to open or close the powder discharge port, and then the first transmission disc drives the powder discharge screw 16 to rotate to achieve material discharge. Thus, during the opening or closing of the powder discharge port, the powder discharge screw 16 does not operate, preventing additional powder accumulation at the discharge port and ensuring its cleanliness and hygiene.

[0067] In addition, it also includes a guide impeller 15 rotatably disposed within the powder storage chamber 1112, which is connected to the first transmission disc. Specifically, it also includes a transmission column 14 rotatably disposed between the powder box body 111 and the powder box bottom cover 113. The bottom of the guide impeller 15 is provided with a sixth gear 151 extending out of the bottom of the powder box body 111. The top of the transmission column 14 is provided with a fifth gear 142 that meshes with the sixth gear 151. The bottom of the transmission column 14 is provided with a fourth gear 141. The shaft of the first transmission disc is also fitted with a third gear 132 that meshes with the fourth gear 141.

[0068] Therefore, when the first transmission disc is driven to rotate, the transmission column 14 can be driven to rotate through the meshing of the third gear 132 and the fourth gear 141, and then the guide impeller 15 can be driven to rotate through the meshing of the fifth gear 142 and the sixth gear 151, thereby realizing the introduction of powder in the powder storage chamber 1112 into the guide tube section 1111.

[0069] Example 2

[0070] See Figure 10-13 The difference between the powder dispensing sealing mechanism of this utility model and that of Embodiment 1 is that the structure of the sealing element and the clutch assembly are different. In this embodiment, the sealing element is a second sealing cover plate 17 that is slidably disposed at the bottom of the powder box 11 to cover or expose the powder dispensing port.

[0071] Specifically, the clutch assembly 23 includes a transmission seat 231, which includes a transmission seat body 2311 and a second transmission seat cover 2313 covering the transmission seat body 2311. The structure of the transmission seat body 2311 is the same as that in Embodiment 1, so it will not be described again here. The second transmission seat cover 2313 is provided with a transmission gear. The clutch assembly 23 also includes a transmission plate 28 slidably disposed on the body 2. The transmission plate 28 is provided with a second locking post 281 protruding from it. The bottom of the second sealing cover plate 17 is provided with a second locking hole 171 that engages with the second locking post 281 to achieve transmission cooperation. The transmission plate 28 is also provided with a rack that meshes with the transmission gear.

[0072] Therefore, when the drive device drives the transmission seat 231 to rotate, the transmission plate 28 can be driven to slide through the meshing of the transmission gear and the rack, which in turn drives the second sealing cover plate 17 to slide to open or close the powder discharge port.

[0073] The second locking pin 281 and the second locking hole 171 are in a differential transmission engagement, which has the same function as the differential angle transmission engagement between the first locking pin 23121 and the first locking hole 121 in Embodiment 1, so it will not be described again here.

[0074] In this embodiment of the utility model, the body 2 is also provided with a second mounting groove 27 that communicates with the first mounting groove 26, and the transmission plate 28 is slidably disposed in the second mounting groove 27.

[0075] In summary, the powder dispensing and sealing mechanism for a powder brewing machine provided by this utility model has the following beneficial effects:

[0076] (I) The powder dispensing sealing mechanism of this utility model simplifies the overall structure of the powder box assembly 1 by placing the clutch assembly 23 on the body 2 instead of at the bottom of the powder box assembly 1, making it easier to assemble and disassemble, and also easier to clean. In addition, the clutch assembly 23 and the second transmission component 22 are both driven by the same drive device 24, thereby reducing the number of parts, reducing costs, and reducing the size and weight of the product, making it more compact.

[0077] (II) The powder dispensing and sealing mechanism of this utility model, by opening the powder dispensing port at the bottom of the powder box 11 and making it vertically continuous, makes the powder dispensing smoother and less prone to clogging. In addition, the sealing element is movably set at the bottom of the powder box 11 and below the powder dispensing port. When the sealing element is rotated or slid linearly, it can cover or expose the powder dispensing port to achieve a lower plane seal. Its sealing performance is better and can greatly reduce the risk of powder leakage.

[0078] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on the other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to the other component.

[0079] It should be understood that the terms "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the module or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0080] Furthermore, in the description of this utility model, "multiple" and "several" mean two or more, unless otherwise explicitly specified.

[0081] The technical means disclosed in this utility model are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications are also considered within the scope of protection of this utility model.

Claims

1. A powder dispensing and sealing mechanism for a powder brewing machine, characterized in that, The machine includes a main body, and a detachable powder box assembly is placed inside the storage chamber of the main body, wherein: The powder box assembly includes a powder box for storing powder and having a powder outlet, a first transmission member that passes through the powder box and is used to drive the powder dispensing component, and a sealing member that is movably disposed on the powder box and located below the powder outlet. Additionally, it includes a drive device disposed within the machine body. The output end of the drive device is connected to a second transmission member and a clutch assembly. The second transmission member is at least partially located within the storage chamber and is used to drive the powder discharge member in a transmission cooperation with the first transmission member. The clutch assembly is at least partially located within the storage chamber and is used to drive the seal to open or close the powder discharge port.

2. The powder dispensing and sealing mechanism for a powder brewing machine according to claim 1, characterized in that, In the initial state, when the drive device drives the clutch assembly to operate, it can drive the seal to operate until the seal is limited and fixed and the powder outlet is opened or closed. Then, the drive device drives the clutch assembly to operate and is in an idle state.

3. The powder dispensing and sealing mechanism for a powder brewing machine according to claim 2, characterized in that, The clutch assembly includes a transmission seat rotatably mounted on the body, a transmission ring rotatably mounted in the transmission seat and connected to the output end of the drive device, and an elastic telescopic member that extends and retracts on the transmission seat and engages with the transmission ring. The machine body has a mounting groove for mounting the transmission seat. At least two limiting protrusions are arranged circumferentially in the mounting groove. The transmission seat has a first protrusion that can abut against the limiting protrusions to limit their rotation position. The mounting groove is also provided with a clearance groove for the elastic telescopic member to extend out. In the initial state, the driving device drives the transmission ring to rotate, and through its transmission cooperation with the elastic telescopic member, drives the transmission seat to rotate. At this time, the elastic telescopic member does not perform telescopic movement. Until the first protrusion abuts against the limiting protrusion, the transmission seat is limited and fixed, and the elastic telescopic member is connected to the clearance groove. Subsequently, when the driving device drives the transmission ring to rotate in the same direction, it can drive the elastic telescopic member to perform telescopic movement to be in an idle state.

4. The powder dispensing and sealing mechanism for a powder brewing machine according to claim 3, characterized in that, The clutch assembly and the seal are in a differential transmission fit, wherein: When the drive device drives the seal to move through the clutch assembly, due to the transmission difference angle or transmission gap, the transmission seat can rotate to a certain angle without load until the elastic telescopic member passes the clearance groove, at which point the clutch assembly begins to drive the seal to move.

5. The powder dispensing and sealing mechanism for a powder brewing machine according to claim 4, characterized in that, The powder outlet is located at the bottom of the powder box and extends vertically. The sealing element is a first sealing cover plate that is rotatably disposed at the bottom of the powder box to cover or expose the powder outlet. The first sealing cover plate is in differential angle transmission cooperation with the transmission seat.

6. The powder dispensing and sealing mechanism for a powder brewing machine according to claim 4, characterized in that, The powder outlet is located at the bottom of the powder box and extends vertically. The sealing element is a second sealing cover plate that is slidably disposed at the bottom of the powder box to cover or expose the powder outlet. The clutch assembly also includes a gear mounted on the transmission seat and a rack meshing with the gear, the rack engaging with the second sealing cover plate in a differential transmission engagement.

7. The powder dispensing and sealing mechanism for a powder brewing machine according to claim 3, characterized in that, The driving device is a drive motor, and the transmission ring is sleeved on the output shaft of the drive motor and is connected to the output shaft via a differential angle transmission, wherein: The outer wall of the transmission ring is provided with several protrusions. When the driving device drives the transmission ring to rotate, the protrusions can abut against the elastic telescopic member to achieve transmission engagement. In the initial state, if the protrusions abut against the elastic telescopic member to extend it, the protrusions are also subjected to the rebound force of the elastic telescopic member. If the transmission ring is not fixed by the output shaft at this time, due to the transmission difference angle, the elastic telescopic member can drive the transmission ring to rotate through the protrusions until the elastic telescopic member is fully reset. If the transmission ring is fixed by the output shaft at this time, when the output shaft rotates in the opposite direction, the output shaft gradually disengages from the transmission ring. The elastic telescopic member can drive the transmission ring to rotate in the opposite direction through the protrusions until the elastic telescopic member is fully reset. Subsequently, the output shaft and the transmission ring begin to connect.

8. The powder dispensing sealing mechanism for a powder brewing machine according to any one of claims 4-7, characterized in that, The powder box is provided with a guide tube that communicates with its interior. The powder dispensing component is a powder dispensing screw that passes through the guide tube. One end of the powder dispensing screw is in transmission cooperation with the first transmission component.

9. The powder dispensing and sealing mechanism for a powder brewing machine according to claim 8, characterized in that, The first transmission component and the powder discharge screw are connected by a differential angle transmission, and the transmission differential angle between the first transmission component and the powder discharge screw is greater than the transmission differential angle or transmission gap between the clutch assembly and the seal. When the drive device drives the first transmission member and the clutch assembly to operate, the clutch assembly first drives the seal to operate to open or close the powder discharge port, and then the first transmission member drives the powder discharge screw to rotate to achieve material discharge.

10. The powder dispensing and sealing mechanism for a powder brewing machine according to claim 8, characterized in that, The powder box has a powder storage cavity that communicates with the guide tube. A guide impeller is rotatably arranged in the powder storage cavity, and the guide impeller is connected to the first transmission component.

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