High pressure siphon milk frothing device

Abstract

The application relates to the technical field of coffee machine accessories, and discloses a high-pressure siphon milk frothing device which comprises a steam air inlet connector, the bottom end of the steam air inlet connector is provided with a steam air inlet device, the bottom end of the steam air inlet device is provided with a nylon butt joint piece, the middle part of the nylon butt joint piece is provided with a partition plate, the upper surfaces of the two ends of the partition plate are provided with locating pins one, the lower surface of the partition plate is symmetrically provided with locating pins two, and the inside of the nylon butt joint piece is provided with a hollow cavity. Through the working process of mutual cooperation of the components, the steam, air and milk input can be accurately controlled, the three can be stably and efficiently mixed in the hollow cavity, the milk froth is uniform in texture, the quality is avoided to be uneven, the milk froth with similar quality can be stably obtained according to the set operation process, the reproducibility and stability of preparation are ensured, and the problem that the quality is not high due to uneven mixing in traditional milk froth preparation is solved.

Description

Technical Field

[0001] This invention relates to the field of coffee machine accessories technology, specifically a high-pressure siphon milk frothing device. Background Technology

[0002] In the traditional field of milk foam preparation, there has long been a problem that makes it difficult to improve the quality of milk foam due to various factors. Previous milk foam preparation devices often had unreasonable structural designs, with many defects in the mixing process of steam, air, and milk.

[0003] Some traditional equipment lacks precise control mechanisms for the delivery of steam and air. The steam and air intake channels are arbitrarily set up, without dedicated and reasonable corresponding connection structures to ensure that both enter the mixing space at stable flow rates and velocities. This results in large fluctuations in parameters when steam and air enter, making it difficult to maintain a relatively fixed ratio. Consequently, when mixed with milk, uniform and thorough integration cannot be achieved, leading to inconsistencies in the texture of the milk foam—some areas are too coarse, while others are too fine, resulting in inconsistent overall quality. There is no stable and suitable internal environment to ensure thorough stirring and mixing of the three substances. Moreover, the connections between the various components of the equipment are sometimes not secure enough, and loosening and displacement can easily occur during milk foam preparation. This not only disrupts the already unstable mixing environment but may also affect the normal transport path of the substances, further exacerbating the problem of uneven mixing.

[0004] This makes it difficult for traditional milk foam preparation methods to guarantee the production of high-quality, uniform, and delicate milk foam every time, which seriously affects their application in many scenarios that require high-quality milk foam, such as coffee beverage preparation, and also fails to meet consumers' ever-increasing demand for high-quality milk foam products. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a high-pressure siphon milk frothing device, which solves the problem of low quality caused by uneven mixing in traditional milk frothing preparation.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a high-pressure siphon milk frothing device, comprising a steam inlet connector, a steam inlet device at the bottom end of the steam inlet connector, a nylon connector at the bottom end of the steam inlet device, a partition in the middle of the nylon connector, positioning pins 1 on the upper surfaces of both ends of the partition, positioning pins 2 symmetrically arranged on the lower surface of the partition, a hollow cavity inside the nylon connector, a steam connection port at the top end of the steam inlet device, an air connection port on one side of the steam connection port of the steam inlet device, a channel corresponding to the steam connection port and the air connection port inside the steam inlet device, the channel of the steam inlet device communicating with the hollow cavity inside the nylon connector, and a milk inlet mechanism on the outer wall of the steam inlet device.

[0007] By adopting the above technical solution, the steam and air are precisely controlled and efficiently and evenly mixed with milk in the hollow cavity through the reasonable arrangement of each component, ensuring that the milk foam has a uniform texture and excellent quality. The components are firmly connected by positioning pins, which maintains the stable operation of the device, reduces failures and extends its service life. The milk inlet mechanism facilitates the introduction of milk and is conducive to functional expansion. It can also stably output high-quality milk foam. At the same time, each component is easy to clean and maintain, which can remove dirt, prevent bacterial growth and ensure hygiene quality, thus meeting diverse usage needs.

[0008] Preferably, the milk inlet mechanism includes a milk inlet tube, one end of which is disposed on the outer wall of the steam inlet device, and a through pipe is disposed inside the milk inlet tube. The through pipe of the milk inlet tube is connected to the channel corresponding to the air inlet tube in the steam inlet device and communicates with the hollow cavity. The other end of the milk inlet tube is provided with a milk suction tube.

[0009] Preferably, an air inlet pipe is provided on the upper surface of the steam inlet connector, and a steam inlet pipe is provided on one side of the air inlet pipe. The bottom ends of the steam inlet pipe and the air inlet pipe pass through the steam inlet connector and are provided on the lower surface of the steam inlet connector. A cavity is provided in the middle of the air inlet pipe and the steam inlet pipe. The bottom ends of the air inlet pipe and the steam inlet pipe are correspondingly provided on the steam connection port and the air connection port on the upper surface of the steam inlet device.

[0010] Preferably, the bottom end of the steam inlet device is symmetrically provided with pin holes, the pin holes of the steam inlet device are located on the outer wall of the positioning pin, and the bottom end of the nylon connector is provided with a silicone connector.

[0011] Preferably, the silicone connector has a connection port in the middle and fixing grooves at both ends, with the fixing grooves of the silicone connector located on the outer wall of the positioning pin.

[0012] Preferably, the bottom end of the silicone mating part is provided with a connecting bend, the middle part of the connecting bend is provided with a second through pipe, the second through pipe of the connecting bend is connected to the hollow cavity of the nylon mating part, the bottom end of the connecting bend is provided with a buckle, one end of the connecting bend is provided with an adjustment mechanism, and the outer wall of one end of the connecting bend is symmetrically provided with a sealing ring, the outer wall of the sealing ring is located inside the adjustment mechanism.

[0013] Preferably, the adjustment mechanism includes a connecting sleeve, one end of which is disposed at one end of the connecting bend, and the connecting sleeve has a milk outlet chamber inside. The milk outlet chamber of the connecting sleeve is connected to the hollow cavity of the nylon butt joint through the connecting bend pipe.

[0014] Preferably, a rotating wheel is fixedly provided at the other end of the connecting sleeve, a milk outlet tube is provided on the outer wall of the connecting sleeve, two sealing rings are symmetrically provided on the outer wall of the connecting sleeve, the outer wall of the two sealing rings is located inside the milk outlet tube, and a clip is provided on the outer wall of one end of the connecting sleeve, and the clip engages with the clip through the connecting sleeve.

[0015] A method for operating a high-pressure siphon milk frothing device, comprising the following steps:

[0016] S1. Install the milk frothing device at the steam outlet of the coffee machine;

[0017] S2. Pour the milk into the milk inlet tube;

[0018] S3. Activate the steam function of the coffee machine. Steam enters the hollow cavity through the steam inlet pipe.

[0019] S4. Milk and air mix with steam in the hollow cavity to form milk foam;

[0020] S5. Milk foam is discharged through the milk outlet tube, completing the preparation.

[0021] A coffee machine, including the aforementioned high-pressure siphon milk frothing device.

[0022] Working principle: When the coffee machine is started, the internal heating element generates high-pressure steam, which enters the device through the steam inlet connector. The steam inlet of the steam inlet connects to the steam inlet pipe, guiding the steam into the hollow cavity of the nylon connector. At the same time, air enters the hollow cavity from the air inlet through the air inlet pipe. On the outer wall of the steam inlet device, the milk inlet pipe draws milk from the milk suction tube through a siphon effect, mixing it with the steam and air within the hollow cavity.

[0023] Inside the hollow cavity, high-speed flowing steam and air create turbulence, thoroughly dispersing the milk and entraining a large amount of air to form fine milk foam. Nylon connectors, secured by locating pins one and two, ensure structural stability and prevent wobbling during mixing. Silicone connectors and connecting bends further optimize the flow path of the milk foam, while sealing rings one and two prevent leakage.

[0024] Milk foam enters the milk outlet chamber of the connecting sleeve through the connecting tube with a bend. The rotating wheel of the adjustment mechanism drives the connecting sleeve and the milk outlet tube to rotate, adjusting the milk outlet angle to align with the container. The ring-shaped locking structure of the clips and buckles ensures a secure connection while allowing for flexible rotation. Finally, the milk foam is discharged through the milk outlet tube, completing the preparation process. The entire device, through precise structural design, achieves efficient mixing of steam, air, and milk, ensuring a fine and stable milk foam texture to meet the needs of various coffee beverages.

[0025] This invention provides a high-pressure siphon milk frothing device. It has the following beneficial effects:

[0026] 1. In this invention, the precise control of the input of steam, air and milk is achieved through the working process of the cooperation of various components, so that the three are stably and efficiently mixed in the hollow cavity, resulting in uniform milk foam texture and avoiding inconsistent quality. Following the established operating procedure, milk foam of similar quality can be obtained stably, ensuring the repeatability and stability of the preparation, and solving the problem of low quality caused by uneven mixing in traditional milk foam preparation.

[0027] 2. In this invention, the corresponding connection structure between the air inlet pipe and the steam inlet pipe and the steam inlet device enables independent and accurate delivery of air and steam, and precise control of parameters such as flow rate and velocity. This allows for a more reasonable ratio and a more uniform and orderly process when the two are mixed with milk, creating stable and suitable conditions for milk foam formation. This results in milk foam with a delicate texture, stable quality, and excellent taste, and can also stably output milk foam of similar quality. This solves the problem that traditional milk frothing devices, due to the design of the air and steam delivery channels, cannot guarantee stable milk foam quality and a delicate taste.

[0028] 3. In this invention, the steam inlet device and the nylon connector are engaged through pin holes and positioning pin one. The nylon connector and the silicone connector are connected by positioning pin two and a fixing groove, achieving a precise and stable connection. This connection ensures that the hollow cavity and connecting channels maintain a stable structure during milk foam preparation, preventing gas leakage, liquid seepage, and disruption of material mixing uniformity due to loose components. It also solves the problem of components easily loosening or detaching after prolonged use or frequent operation.

[0029] 4. In this invention, the connecting pipe 2, which connects to the hollow cavity via the bent pipe, enables smooth transfer of milk foam from the mixing space to subsequent components, ensuring that the milk foam flows along a predetermined path without blockage or disordered flow. The sealing ring 1 ensures the airtightness of the milk foam transmission process, preventing its quality from being affected by external factors. This solves the problem of external impurities entering the milk foam or leakage during milk foam transmission caused by the lack of a sealing structure in traditional milk frothing devices.

[0030] 5. In this invention, the rotating wheel drives the connecting sleeve and milk outlet tube to rotate and adjust the angle, allowing the milk outlet tube to be flexibly aligned with different containers, improving the accuracy and convenience of milk frothing output and meeting diverse usage scenarios. The cooperation of the clips and buckles enables convenient and secure connection between the connecting tube and the connecting sleeve, facilitating assembly, disassembly, and storage. Furthermore, each component is detachable for thorough cleaning, removing dirt and preventing bacterial growth. This solves the problems of traditional milk frothing devices being complex in structure, inconvenient to operate and store, difficult to clean, and prone to bacterial growth. Attached Figure Description

[0031] Figure 1 This is a three-dimensional front view of a high-pressure siphon milk frothing device proposed in this invention;

[0032] Figure 2 This is a partial structural diagram of the air inlet pipe of a high-pressure siphon milk frothing device proposed in this invention;

[0033] Figure 3 This is a partial structural cross-sectional view of a high-pressure siphon milk frothing device proposed in this invention;

[0034] Figure 4 This is a partial structural diagram of the connecting bend of a high-pressure siphon milk frothing device proposed in this invention.

[0035] Figure 5 This is a partial structural diagram of the silicone connector of a high-pressure siphon milk frothing device proposed in this invention;

[0036] Figure 6 This is a partial structural diagram of the nylon connector of a high-pressure siphon milk frothing device proposed in this invention;

[0037] Figure 7 This is a partial structural diagram of the steam inlet device of a high-pressure siphon milk frothing device proposed in this invention.

[0038] Figure 8 This is a partial structural diagram of the steam inlet connector of a high-pressure siphon milk frothing device proposed in this invention.

[0039] Figure 9 This is a flowchart illustrating the operation method of a high-pressure siphon milk frothing device proposed in this invention.

[0040] The components include: 1. Steam inlet connector; 2. Steam inlet device; 3. Air inlet pipe; 4. Silicone connector; 5. Connecting bend; 6. Milk suction tube; 7. Milk outlet tube; 8. Rotary wheel; 9. Connecting sleeve; 10. Steam inlet pipe; 11. Sealing ring one; 12. Hollow cavity; 13. Milk inlet pipe; 14. Milk outlet chamber; 15. Sealing ring two; 16. Buckle; 17. Clip; 18. Fixing groove; 19. Connection port; 20. Nylon connector; 21. Positioning pin one; 22. Positioning pin two; 23. Steam connection port; 24. Air connection port; 25. Partition. Detailed Implementation

[0041] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0042] Please see the appendix Figure 1 -Appendix Figure 3 Appendix Figure 6 -Appendix Figure 8 This invention provides a high-pressure siphon milk frothing device, including a steam inlet connector 1, a steam inlet device 2 at the bottom of the steam inlet connector 1, a nylon connector 20 at the bottom of the steam inlet device 2, a partition 25 in the middle of the nylon connector 20, positioning pins 21 on the upper surfaces of both ends of the partition 25, and positioning pins 22 symmetrically arranged on the lower surface of the partition 25. A hollow cavity 12 is provided inside the nylon connector 20, and a steam connection port 23 is provided at the top of the steam inlet device 2. An air connector is provided on one side of the steam connection port 23 of the steam inlet device 2. Interface 24, the steam intake device 2 has a channel inside that corresponds to the steam connection port 23 and the air connection port 24. The channel of the steam intake device 2 is connected to the hollow cavity 12 inside the nylon connector 20. The outer wall of the steam intake device 2 is provided with a milk inlet mechanism, which includes a milk inlet pipe 13. One end of the milk inlet pipe 13 is located on the outer wall of the steam intake device 2. The inside of the milk inlet pipe 13 is provided with a through pipe. The through pipe of the milk inlet pipe 13 is connected to the channel corresponding to the air inlet pipe 3 inside the steam intake device 2 and is connected to the hollow cavity 12. The other end of the milk inlet pipe 13 is provided with a milk suction tube 6.

[0043] Specifically, firstly, the steam inlet connector 1, as the key component connecting the entire device to the steam outlet of the external coffee machine, ensures a stable connection, guaranteeing the smooth introduction of subsequent steam. When the coffee machine starts and generates steam, the steam enters the steam inlet device 2 connected to its bottom through the steam inlet connector 1. The steam then flows continuously and stably through the steam connection port 23 at the top of the steam inlet device 2, along the corresponding channel specially designed inside the steam inlet device 2, into the hollow cavity 12 inside the nylon connector 20.

[0044] Simultaneously, air enters the steam intake device 2 through the air connection port 24 and is transported to the hollow cavity 12 of the nylon connector 20 along the corresponding internal channel. A milk inlet mechanism is installed on the outer wall of the steam intake device 2, with the milk inlet pipe 13 playing a crucial role in conveying milk. One end of the milk inlet pipe 13 is precisely installed on the outer wall of the steam intake device 2, and its interior has a connecting pipe that connects to the corresponding channel of the air inlet pipe 3 within the steam intake device 2, thus connecting to the hollow cavity 12. The other end of the milk inlet pipe 13 is connected to the milk suction tube 6. During operation, milk is placed at the milk suction tube 6, and due to the siphon effect generated by the airflow within the air inlet pipe 3, the milk flows along the milk suction tube 6 into the milk inlet pipe 13, and is then continuously drawn into the hollow cavity 12.

[0045] When steam, air, and milk converge in the hollow cavity 12, the heat carried by the steam raises the temperature of the milk. Furthermore, the steam and air flow at high speed upon entering the hollow cavity 12, ensuring thorough and meticulous mixing and agitation with the milk. During this process, the partition 25 located in the middle of the nylon connector 20, along with the positioning pins 21 on its upper surface and symmetrically arranged positioning pins 22 on its lower surface, plays a crucial role. These pins precisely determine the relative positions of the components, ensuring a secure connection between the nylon connector 20 and components such as the steam inlet device 2. This allows the entire hollow cavity 12, as a mixing space, to maintain a stable structural state, preventing any loosening or displacement of components from affecting the internal mixing process. Consequently, steam, air, and milk can continuously and thoroughly mix and agitate in a stable environment, ultimately resulting in the milk being uniformly frothed into milk foam.

[0046] Through the coordinated workflow of its components, precise control over the input volume and process of steam, air, and milk is achieved, ensuring stable and efficient mixing within the hollow cavity 12. This results in milk foam with a relatively uniform texture, preventing uneven quality such as excessively coarse or fine foam in certain areas. Furthermore, by following the established operating procedures, consistently producing milk foam of similar quality each time, guaranteeing repeatability and stability in milk foam preparation. This solves the problem of uneven mixing and low-quality milk foam in traditional preparation methods.

[0047] Please see the appendix Figure 1 -Appendix Figure 3 Appendix Figure 8 An air inlet pipe 3 is provided on the upper surface of the steam inlet connector 1, and a steam inlet pipe 10 is provided on one side of the air inlet pipe 3. The bottom ends of the steam inlet pipe 10 and the air inlet pipe 3 pass through the steam inlet connector 1 and are provided on the lower surface of the steam inlet connector 1. A cavity is provided in the middle of the air inlet pipe 3 and the steam inlet pipe 10. The bottom ends of the air inlet pipe 3 and the steam inlet pipe 10 are respectively provided on the steam connection port 23 and the air connection port 24 on the upper surface of the steam inlet device 2.

[0048] Specifically, the steam inlet connector 1, as a key hub connecting the external air source and internal components of the entire device, has a clearly defined function and path of operation for its upper surface air inlet pipe 3 and steam inlet pipe 10. A cavity is provided in the middle of both the air inlet pipe 3 and steam inlet pipe 10, providing a stable channel space for gas delivery. The bottom ends of the air inlet pipe 3 and steam inlet pipe 10 penetrate the steam inlet connector 1 and extend to its lower surface, aiming to precisely connect with the corresponding interfaces on the upper surface of the steam inlet device 2. Specifically, the bottom end of the air inlet pipe 3 is positioned at the air connection port 24 of the steam inlet device 2, and the bottom end of the steam inlet pipe 10 is positioned at the steam connection port 23 of the steam inlet device 2.

[0049] When the entire device starts working, external air enters through the inlet of the air inlet pipe 3, flows steadily and continuously to the bottom of the cavity in the middle of the air inlet pipe 3, and then connects with the air connection port 24 on the steam inlet device 2 to accurately deliver the air to the specially designed air channel inside the steam inlet device 2, so that the air can enter the hollow cavity 12 inside the subsequent nylon connector 20 to participate in the subsequent related functions.

[0050] Similarly, steam generated by an external steam source enters through the inlet of steam inlet pipe 10, flows orderly along the cavity in the middle of steam inlet pipe 10 to its bottom, and then, by connecting with the steam connection port 23 on the steam inlet device 2, the steam is also transported through the corresponding steam channel inside the steam inlet device 2 to the hollow cavity 12 inside the nylon connector 20, where it mixes and reacts with air and milk that enter the hollow cavity 12 from other paths, thereby starting the milk foam preparation process.

[0051] By configuring the air inlet pipe 3 and the steam inlet pipe 10, and their corresponding connection structure with the steam inlet device 2, independent and accurate delivery of air and steam is achieved. This ensures that when air and steam enter the hollow cavity 12, their flow rate, velocity, and other parameters remain relatively stable and can be precisely controlled. This precise control results in a more reasonable mixing ratio and a more uniform and orderly mixing process when air and steam mix with milk within the hollow cavity 12. This ensures stable and suitable conditions for milk foam formation, leading to a higher level of texture and fineness. It also ensures a stable output of milk foam of consistent quality and a smooth texture. This solves the problem of traditional milk frothing devices where the unreasonable design of the air and steam delivery channels makes it difficult to achieve stable milk foam quality and a smooth texture.

[0052] Please see the appendix Figure 3 Appendix Figure 5 -Appendix Figure 6 The bottom end of the steam inlet device 2 is symmetrically provided with pin holes. The pin holes of the steam inlet device 2 are located on the outer wall of the positioning pin 21. The bottom end of the nylon connector 20 is provided with a silicone connector 4. The middle part of the silicone connector 4 is provided with a connection port 19. The two ends of the silicone connector 4 are provided with fixing grooves 18. The fixing grooves 18 of the silicone connector 4 are located on the outer wall of the positioning pin 22.

[0053] Specifically, the bottom end of the steam intake device 2 is symmetrically provided with pin holes, which are used to connect with the positioning pin 21. During assembly, the positioning pin 21 is accurately inserted into the pin holes of the steam intake device 2. Through this nesting method, the steam intake device 2 and the nylon connector 20 are precisely positioned and initially fixed in the vertical direction, ensuring that their relative positions are accurate and the connection is stable. This prevents vertical displacement during subsequent use and lays the foundation for the connectivity of the internal channels and the stability of the milk foam preparation process.

[0054] The connecting port 19 in the middle of the silicone connector 4 is used to connect the hollow cavity 12 of the nylon connector 20 above it and other components connected to it below, ensuring that substances such as milk foam, gas, and milk can pass through smoothly. The fixing grooves 18 at both ends of the silicone connector 4 cooperate with the positioning pins 22 symmetrically arranged on the lower surface of the partition 25. Specifically, the positioning pins 22 are embedded in the fixing grooves 18 of the silicone connector 4. In this way, the position of the silicone connector 4 relative to the nylon connector 20 is further restricted from the side, so that it remains stable in the horizontal direction and prevents lateral displacement or shaking. At the same time, it makes the entire connection structure more compact and stable, ensuring that the connection between the components is tight and forms a stable and reliable overall structure, which is conducive to the smooth flow and mixing of various substances inside during the milk foam preparation process.

[0055] By utilizing the pin hole and positioning pin 21 to connect the steam inlet device 2 and the nylon connector 20, and by connecting the nylon connector 20 and the silicone connector 4 through positioning pin 22 and fixing groove 18, a precise and stable connection between the components is achieved. This stable connection ensures that the internal hollow cavity 12 and all connecting channels maintain a stable structural shape during milk foam preparation, preventing gas leakage, liquid seepage, or disruption of the uniformity of mixing due to loosening between components. This solves the problem of components becoming loose or disconnected after prolonged use or frequent operation.

[0056] Please see the appendix Figure 3 -Appendix Figure 5 The bottom end of the silicone connector 4 is provided with a connecting bend 5, the middle part of the connecting bend 5 is provided with a through pipe 2, the through pipe 2 of the connecting bend 5 is connected to the hollow cavity 12 of the nylon connector 20, the bottom end of the connecting bend 5 is provided with a buckle 16, one end of the connecting bend 5 is provided with an adjustment mechanism, and the outer wall of one end of the connecting bend 5 is symmetrically provided with a sealing ring 11, the outer wall of the sealing ring 11 is located inside the adjustment mechanism.

[0057] Specifically, the connecting bend 5 at the bottom of the silicone connector 4 plays a crucial role in connection and transport. One end of the connecting pipe 2 in the middle is connected to the hollow cavity 12 of the nylon connector 20. In this way, the milk foam formed after the steam, air and milk are fully mixed in the hollow cavity 12 can enter the connecting bend 5 through this connecting pipe 2.

[0058] The bottom end of the connecting bend 5 is provided with a buckle 16. The buckle 16 is a structure used to securely connect with the subsequent connected components. By engaging with the corresponding slots and other structures on the corresponding components, it can prevent the connecting bend 5 from accidentally disengaging from other components, ensuring the integrity and sealing of the entire device during operation.

[0059] An adjustment mechanism is provided at one end of the connecting bend 5, which can adjust the output of milk foam and other parameters. The sealing rings symmetrically arranged on the outer wall of one end of the connecting bend 5 work by tightly fitting the inner wall of the adjustment mechanism when the connecting bend 5 is connected to it. Through their elasticity and tight fit, the sealing rings fill any tiny gaps between them, preventing leakage of milk foam as it flows through. They also prevent external impurities from entering the connecting bend 5, ensuring that the milk foam can continue to be transported to subsequent components in a relatively clean and sealed environment, creating favorable conditions for stable output and use of subsequent milk foam.

[0060] The design of connecting pipe 2 (connecting bend 5) to hollow cavity 12 ensures smooth transfer of milk foam from the mixing space to subsequent components, guaranteeing that the milk foam flows along a predetermined path without blockage or disordered flow. The presence of sealing ring 11 provides excellent sealing, ensuring the milk foam remains airtight during transport and preventing its quality from being affected by external factors. This solves the problem in traditional milk frothing devices where the lack of a sealing structure allows external impurities to easily enter the milk foam or causes leakage during transport.

[0061] Please see the appendix Figure 1 -Appendix Figure 4 The adjustment mechanism includes a connecting sleeve 9, one end of which is located at one end of the connecting bend 5. The connecting sleeve 9 has a milk outlet chamber 14 inside, which is connected to the hollow cavity 12 of the nylon connector 20 through the second through-tube of the connecting bend 5. The other end of the connecting sleeve 9 is fixedly provided with a rotating wheel 8. The outer wall of the connecting sleeve 9 is provided with a milk outlet tube 7. The outer wall of the connecting sleeve 9 is symmetrically provided with a second sealing ring 15, which is located inside the milk outlet tube 7. One end of the outer wall of the connecting sleeve 9 is provided with a locking piece 17, and a buckle 16 engages with the locking piece 17 through the connecting sleeve 9.

[0062] Specifically, in the adjustment mechanism, the connecting sleeve 9 and the rotating wheel 8 are fixedly connected. When an external force is applied to the rotating wheel 8 to rotate it, due to the fixed connection between the two, the rotating wheel 8 will drive the connecting sleeve 9 to rotate synchronously, and the milk outlet pipe 7 set on the outer wall of the connecting sleeve 9 will also rotate together. Therefore, during the rotation, the connecting sleeve 9 and the milk outlet pipe 7 can be adjusted in angle around the axis of the connecting bend pipe 5.

[0063] The purpose of this rotating and angle-adjusting design is to allow the milk outlet tube 7 to be precisely aligned with the external container holding the milk foam, such as a coffee cup, by changing its angle. In this way, after the milk foam enters the milk outlet chamber 14 of the connecting sleeve 9 from the connecting bend tube 5, it can be adjusted by the milk outlet chamber 14 and then accurately discharged into the corresponding container at the appropriate angle along the milk outlet tube 7, achieving precise milk dispensing.

[0064] The sealing rings 15 symmetrically arranged on the outer wall of the connecting sleeve 9 are compressed by the inner wall of the milk outlet tube 7 and the outer wall of the connecting sleeve 9 when the milk outlet tube 7 is fitted onto the outer wall of the connecting sleeve 9. Based on its own elastic material properties, the sealing rings 15 deform and fill even the smallest gaps between them, thus creating an effective sealing barrier at the junction of the connecting sleeve 9 and the milk outlet tube 7. This prevents milk foam from leaking out of these gaps when it flows through this area, and instead allows it to flow completely along the milk outlet tube 7 to the external container. This maximizes the integrity of the milk foam, avoids unnecessary waste of milk foam, and also prevents milk foam leakage from polluting the surrounding operating environment, maintaining a clean and tidy working environment.

[0065] In the adjustment mechanism, a locking element 17 is provided at the opening of the connecting sleeve 9. The locking element 17 has a circular structure and an opening is specially provided at the ring. When assembling the device, the connecting sleeve 9 is first aligned with the connecting bend 5, and then the insertion operation is performed to make the connecting sleeve 9 and the connecting bend 5 initially connected.

[0066] The bottom end of the connecting bend 5 is equipped with a buckle 16. During insertion, the opening of the clip 17 on the connecting sleeve 9 needs to be accurately aligned with the buckle 16 of the connecting bend 5. In this way, the buckle 16 can enter the annular part of the clip 17 through the opening. After the buckle 16 has entered the appropriate position through the opening of the clip 17, the rotating wheel 8 can be held. Since the rotating wheel 8 is fixedly connected to the connecting sleeve 9, rotating the rotating wheel 8 will drive the connecting sleeve 9 and the milk outlet tube 7 set on the outer wall of the connecting sleeve 9 to rotate around the connecting bend 5. During the rotation, the buckle 16 will gradually lock into the annular part of the clip 17, realizing a stable locking connection between the two.

[0067] The principle behind this snap-fit ​​connection method is that, through the ring structure of the clip 17 and the ingenious design of its opening, combined with the insertion and rotation of the buckle 16, the connecting bend 5 and the connecting sleeve 9 can be precisely and tightly fixed together, strictly limiting the relative displacement between the two in all directions, ensuring the tightness and stability of the connection. This provides a stable and reliable structural foundation for the subsequent smooth transmission of milk foam from the connecting bend 5 to the milk outlet chamber 14 inside the connecting sleeve 9, and then to the discharge through the milk outlet tube 7. It avoids problems such as leakage, poor milk foam flow, or disconnection due to loose connection during milk foam transmission, ensuring the smoothness and stability of the entire milk foam transmission chain.

[0068] The design of rotating the connecting sleeve 9 and milk outlet tube 7 via the rotating wheel 8 allows for flexible alignment of the milk outlet tube 7 with containers of different positions and sizes, improving the accuracy and convenience of milk foam output to the target container. Regardless of the container's placement or angle, milk foam can be accurately dispensed, meeting diverse usage needs. The connection between the clip 17 and the buckle 16 ensures a convenient and stable connection between the connecting bend tube 5 and the connecting sleeve 9. During assembly, this design makes the connection operation relatively simple and easy. The simple and compact structure allows operators to easily assemble, disassemble, and store the components. The detachable connection allows the entire device to be completely disassembled into individual parts for cleaning, eliminating hard-to-reach cleaning dead spots. Operators can thoroughly clean each component, effectively removing milk stains, scale, and other dirt remaining on the surface and in the internal channels, preventing bacterial growth. This solves the problems of complex structure, inconvenient operation and storage, and difficult cleaning leading to bacterial growth in traditional milk frothing devices.

[0069] Please see the appendix Figure 9 A method for operating a high-pressure siphon milk frothing device, comprising the following steps:

[0070] S1. Install the milk frothing device at the steam outlet of the coffee machine;

[0071] S2. Pour the milk into the milk inlet tube at point 6;

[0072] S3. Activate the steam function of the coffee machine. Steam enters the hollow cavity 12 through the steam inlet pipe 10.

[0073] S4. Milk and air mix with steam in the hollow cavity 12 to form milk foam;

[0074] S5. Milk foam is discharged through milk outlet tube 7, completing the preparation.

[0075] Specifically, firstly, the milk frothing device is installed at the steam outlet of the coffee machine. This process relies on the fitting structure between the steam inlet connector 1 and the coffee machine's steam outlet to achieve a tight connection. The relevant interfaces and connection points on the steam inlet connector 1 can accurately align with the coffee machine's steam outlet, ensuring that subsequent steam can be stably and smoothly transmitted from the coffee machine to the milk frothing device, avoiding steam leakage and laying the foundation for the entire milk frothing process.

[0076] Pour milk into the milk inlet tube 6. The milk is then transported using a milk intake mechanism located on the outer wall of the steam intake device 2. One end of the milk inlet tube 13 is connected to the outer wall of the steam intake device 2, and its internal passage connects to the corresponding channel of the air inlet tube 3 within the steam intake device 2, thus connecting to the hollow cavity 12. The other end of the milk inlet tube 13 is the milk suction tube 6. When milk is poured into the milk suction tube 6, the milk is gradually drawn into the hollow cavity 12 by the siphon effect generated by the airflow in the air inlet tube 3, along the milk suction tube 6 and the milk inlet tube 13, ready to mix with the incoming steam and air.

[0077] After the coffee machine's steam function is activated, steam is generated inside the machine and enters the hollow cavity 12 through the steam inlet pipe 10. The steam inlet pipe 10 is located on the upper surface of the steam inlet connector 1, with its bottom end penetrating the connector and corresponding to the steam connection port 23 on the upper surface of the steam inlet device 2. After entering through the steam inlet pipe 10, the steam flows steadily along the channel inside the steam inlet device 2 corresponding to the steam connection port 23, ultimately entering the hollow cavity 12 inside the nylon connector 20. This provides heat for milk foam formation and allows the milk to undergo shape changes under the impact and agitation of the steam. Simultaneously, air also enters through the air inlet pipe 3, entering the hollow cavity 12 through its corresponding channel, increasing the air content for frothing the milk and making it more fluffy.

[0078] Once milk, air, and steam converge within the hollow cavity 12, the heat carried by the steam is rapidly transferred to the milk, raising its temperature and making it easier to froth. The high-speed flowing steam and air, within the relatively enclosed and stable space of the hollow cavity 12, thoroughly and meticulously mix and stir the milk. The structure of the hollow cavity 12 is defined by the nylon connecting piece 20. The nylon connecting piece 20, through structures such as the partition 25, positioning pin 1 21, and positioning pin 22, ensures its own stability and the secure connection with other components. This prevents external factors from interfering with the internal mixing environment and prevents the mixing process from being disrupted by loose components, allowing the milk to be evenly frothed into milk foam under the combined action of steam and air.

[0079] After the milk foam is formed, it is propelled by the pressure within the hollow cavity 12 and the continuously generated steam, entering the milk outlet chamber 14 of the connecting sleeve 9 through the connecting bend 5. The middle section of the connecting bend 5 is connected to the hollow cavity 12 of the nylon connector 20, and the buckle 16 at its bottom engages with the clip 17 on the outer wall of one end of the connecting sleeve 9, ensuring a stable connection and allowing the milk foam to be transmitted smoothly. Then, the milk foam is discharged from the milk outlet chamber 14 of the connecting sleeve 9 along the milk outlet pipe 7, completing the entire milk foam preparation process. The milk outlet pipe 7 and the connecting sleeve 9 are sealed by the sealing ring 15 to prevent milk foam leakage and ensure that the milk foam can be completely discharged to the outside for use in beverage preparation and other purposes.

[0080] Through clear and orderly operating procedures and the coordinated operation of various components, a complete and stable milk foam preparation process is achieved. The milk foam has a uniform and delicate texture, and the quantity is relatively stable. The operation is simple and easy to learn, improving the convenience and success rate of milk foam preparation and meeting the quality and quantity requirements of milk foam in different scenarios. It solves the problem that traditional milk frothing devices are cumbersome and complicated to operate, requiring professional skills or a long period of trial and error.

[0081] A coffee machine including a high-pressure siphon milk frothing device.

[0082] Specifically, the heating element inside the coffee machine generates steam, which is transmitted to the included high-pressure siphon milk frothing device. The steam is then introduced into the hollow cavity through its internal channels. At the same time, the milk inlet mechanism introduces milk and air into the hollow cavity. The three mix to form milk foam, which is then discharged through the milk outlet tube for use in coffee making, achieving a synergistic operation.

[0083] By incorporating a milk frothing device into the coffee machine, space occupancy and operational complexity are reduced, improving ease of use. It also allows for better coordination between milk foam and coffee, resulting in higher quality, better taste, and better appearance of milk-frozen coffee drinks, thus optimizing the drinking experience.

[0084] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-pressure siphon milk frothing device comprising a steam inlet connector (1), characterized in that: The bottom end of the steam inlet connector (1) is provided with a steam inlet device (2), the bottom end of the steam inlet device (2) is provided with a nylon butt joint (20), the middle part of the nylon butt joint (20) is provided with a partition plate (25), the upper surface of both ends of the partition plate (25) is provided with a positioning pin one (21), the lower surface of the partition plate (25) is symmetrically provided with a positioning pin two (22), the inside of the nylon butt joint (20) is provided with a hollow cavity (12), the top end of the steam inlet device (2) is provided with a steam connection port (23), one side of the steam connection port (23) of the steam inlet device (2) is provided with an air connection port (24), the inside of the steam inlet device (2) is provided with a channel corresponding to the steam connection port (23) and the air connection port (24), the channel of the steam inlet device (2) is communicated with the hollow cavity (12) in the inside of the nylon butt joint (20), the outer wall of the steam inlet device (2) is provided with a milk inlet mechanism; The milk inlet mechanism comprises a milk inlet pipe (13), one end of the milk inlet pipe (13) is arranged on the outer wall of the steam inlet device (2), the inside of the milk inlet pipe (13) is provided with a pipe one, the pipe one of the milk inlet pipe (13) is connected with the channel corresponding to the air inlet pipe (3) in the steam inlet device (2) and communicated with the hollow cavity (12), the other end of the milk inlet pipe (13) is provided with a milk suction pipe (6); The upper surface of the steam inlet connector (1) is provided with an air inlet pipe (3), one side of the air inlet pipe (3) is provided with a steam inlet pipe (10), the bottom end of the steam inlet pipe (10) and the air inlet pipe (3) penetrates through the steam inlet connector (1) and is arranged on the lower surface of the steam inlet connector (1), the middle part of the air inlet pipe (3) and the steam inlet pipe (10) is provided with a cavity one, the bottom end of the air inlet pipe (3) and the steam inlet pipe (10) is correspondingly arranged on the steam connection port (23) and the air connection port (24) on the upper surface of the steam inlet device (2); The bottom end of the steam inlet device (2) is symmetrically provided with a pin hole, the pin hole of the steam inlet device (2) is arranged on the outer wall of the positioning pin one (21), the bottom end of the nylon butt joint (20) is provided with a silica gel butt joint (4); The middle part of the silica gel butt joint (4) is provided with a connection port (19), both ends of the silica gel butt joint (4) are provided with a fixed groove (18), the fixed groove (18) of the silica gel butt joint (4) is arranged on the outer wall of the positioning pin two (22).

2. A high pressure siphon milk frothing device according to claim 1, characterized in that: The bottom end of the silica gel butt joint (4) is provided with a connecting elbow pipe (5), the middle part of the connecting elbow pipe (5) is provided with a pipe two, the pipe two of the connecting elbow pipe (5) is communicated with the hollow cavity (12) of the nylon butt joint (20), the bottom end of the connecting elbow pipe (5) is provided with a buckle (16), one end of the connecting elbow pipe (5) is provided with an adjusting mechanism, the outer wall of one end of the connecting elbow pipe (5) is symmetrically provided with a sealing ring one (11), the outer wall of the sealing ring one (11) is arranged in the inside of the adjusting mechanism; The bottom end of the silica gel butt joint (4) is provided with a connecting elbow pipe (5), the middle part of the connecting elbow pipe (5) is provided with a pipe two, the pipe two of the connecting elbow pipe (5) is communicated with the hollow cavity (12) of the nylon butt joint (20), the bottom end of the connecting elbow pipe (5) is provided with a buckle (16), one end of the connecting elbow pipe (5) is provided with an adjusting mechanism, the outer wall of one end of the connecting elbow pipe (5) is symmetrically provided with a sealing ring one (11), the outer wall of the sealing ring one (11) is arranged in the inside of the adjusting mechanism; The adjusting mechanism comprises a connecting sleeve (9), one end of the connecting sleeve (9) is arranged at one end of the connecting elbow (5), the inside of the connecting sleeve (9) is provided with a milk outlet cavity (14), the milk outlet cavity (14) of the connecting sleeve (9) is communicated with the hollow cavity (12) of the nylon butt joint (20) through the through pipe two of the connecting elbow (5); The other end of the connecting sleeve (9) is fixedly provided with a rotating wheel (8), the outer wall of the connecting sleeve (9) is provided with a milk outlet pipe (7), the outer wall of the connecting sleeve (9) is symmetrically provided with a sealing ring two (15), the outer wall of the sealing ring two (15) is arranged in the inside of the milk outlet pipe (7), one end of the outer wall of the connecting sleeve (9) is provided with a clamping piece (17), the buckle (16) is clamped with the clamping piece (17) through the connecting sleeve (9).

3. A method of operating a high pressure siphon milk frothing device, characterized in that, A high-pressure siphon milk frothing device for any one of claims 1-2, comprising the following steps: S1, install the milk frothing device at the steam outlet of the coffee machine; S2, pour milk into the milk inlet suction pipe (6); S3, start the steam function of the coffee machine, the steam enters the hollow cavity (12) through the steam inlet pipe (10); S4, the milk and air are mixed with the steam in the hollow cavity (12) to form milk foam; S5, the milk foam is discharged through the milk outlet pipe (7), and the preparation is completed.

4. A coffee maker, characterized in that A high-pressure siphon milk frothing device comprising any one of claims 1-2.

Images