Coffee and tea bar machine and discharging module thereof

Abstract

According to the coffee and tea bar machine and the discharging module thereof, the discharging module comprises a discharging body, an opening is formed in the bottom of the discharging body, an extraction water way, a pure water way and an extraction inner bin used for containing coffee capsules are arranged in an inner cavity of the discharging body, and an opening is formed in the bottom of the extraction inner bin; a first puncturing clamping jaw and an extraction water path are arranged at the top of the extraction inner bin; the discharge hole lower cover assembly is detachably and fixedly connected with the discharge main body; the bottom of the discharging port lower cover assembly is provided with a discharging port and a pure water outlet, the top of the discharging port lower cover assembly is provided with an extraction outer bin, and the top of the extraction outer bin is provided with an opening used for being arranged outside the extraction inner bin in a sleeving mode; the bottom of the extraction outer bin is communicated with the discharge port and is provided with a second puncturing clamping jaw; the pure water outlet is butted with the pure water path; therefore, a user can conveniently detach the whole lower cover assembly, and residual coffee grounds and incrustation are thoroughly flushed. And the aged parts can be independently replaced without returning to a factory.

Description

Technical Field

[0001] This application relates to the field of household appliance technology, specifically to a coffee and tea bar machine and its dispensing module. Background Technology

[0002] Existing tea bar machines or water dispensers with coffee extraction functions only have detachable drip filters, but the overall water outlet mechanism does not have a dedicated detachable design, which may create cleaning dead spots. In particular, coffee residue can easily accumulate inside the drip filter, making it difficult to clean thoroughly.

[0003] Existing coffee brewing structures lack a dedicated detachable spout design, potentially creating cleaning dead zones, especially as coffee residue easily accumulates inside the drip filter, making thorough cleaning difficult. Furthermore, the overall structure is relatively loose, potentially taking up more space and requiring multiple water pumps and water systems, increasing complexity and cost. Summary of the Invention

[0004] This application provides a coffee and tea bar machine and its dispensing module to solve the problem that the existing water outlet structure is an integrated set, and coffee residue is easy to accumulate inside the drip filter, making it difficult to clean thoroughly.

[0005] To achieve the above objectives, this application provides the following technical solution:

[0006] A dispensing module for a coffee / tea bar machine, comprising:

[0007] The dispensing body has an opening at the bottom. The inner cavity of the dispensing body has an extraction water channel, a pure water channel, and an extraction chamber for placing coffee capsules. The bottom of the extraction chamber has an opening, and the top of the extraction chamber has a first piercing claw and the extraction water channel.

[0008] The discharge port lower cover assembly is detachably and fixedly connected to the discharge body; the bottom of the discharge port lower cover assembly is provided with a discharge port and a pure water outlet, the top of the discharge port lower cover assembly is provided with an extraction outer chamber, the top of the extraction outer chamber is provided with an opening for fitting onto the outside of the extraction inner chamber; the bottom of the extraction outer chamber is connected to the discharge port and is provided with a second piercing claw; the pure water outlet is connected to the pure water channel.

[0009] Optionally, the discharge port lower cover assembly includes:

[0010] A lower cover for the discharge port, wherein the lower cover for the discharge port is provided with the discharge port and the pure water outlet;

[0011] The base is detachably fixed to the top of the lower cover of the discharge port; the top of the base is provided with a pure water outlet pipe seat, one end of which is used to connect with the pure water circuit, and the other end is connected to the pure water outlet; the extraction outer chamber is provided on the base.

[0012] Optionally, the base is provided with a base outlet that connects to the bottom of the extraction chamber;

[0013] The lower cover of the discharge port has a discharge chamber and a pure water discharge chamber. The discharge chamber is provided with the discharge port, and the pure water discharge chamber is provided with the pure water outlet. The discharge chamber is connected to the discharge port of the base, and the pure water discharge chamber is connected to the pure water outlet pipe seat.

[0014] Optionally, the base is provided with external threads in the circumference, and the inner wall of the discharge body is provided with a stop block for limiting the rotation angle of the discharge port lower cover assembly.

[0015] Optionally, the top of the base is provided with a set of mounting seats extending upward, and the circumferential outer wall of the mounting seats is provided with the external threads.

[0016] Optionally, the extraction chamber is located at the radial center of the discharge body;

[0017] The outer extraction chamber is located at the radial center of the base, and a first sealing ring is provided at the bottom of the outer extraction chamber. The first sealing ring is used to face the bottom outer edge of the inner extraction chamber.

[0018] The inner cavity of the discharge body is provided with a second sealing ring for sealing with the top inner edge of the extraction outer chamber.

[0019] Optionally, the bottom inner wall of the extraction chamber is provided with a third sealing ring for sealing the coffee capsule and the extraction chamber.

[0020] Optionally, the discharge body is provided with a sinking mounting base inside, and the extraction chamber is detachably fixed to the bottom wall of the sinking mounting base; the second sealing ring is provided on the circumferential outer edge of the sinking mounting base;

[0021] The sinking mounting base is equipped with an extraction water circuit mounting pipe seat. One end of the extraction water circuit mounting pipe seat is detachably and fixedly connected to the extraction water circuit, and the other end is connected to the extraction inner chamber.

[0022] Optionally, a preset interval is provided between the discharge port and the pure water outlet.

[0023] This application also provides a coffee and tea bar machine, including:

[0024] The discharge module described in any of the above embodiments;

[0025] The main body of the tea bar machine has a tabletop and a backrest, and the backrest is equipped with the dispensing module and the display panel.

[0026] This application provides a dispensing module for a coffee / tea bar machine, comprising: a dispensing body with an opening at the bottom; an inner cavity of the dispensing body having an extraction water channel, a pure water channel, and an extraction inner chamber for holding coffee capsules; the bottom of the extraction inner chamber having an opening; and the top of the extraction inner chamber having a first piercing claw and the extraction water channel; a dispensing port lower cover assembly detachably and fixedly connected to the dispensing body; the bottom of the dispensing port lower cover assembly having a dispensing port and a pure water outlet; the top of the dispensing port lower cover assembly having an extraction outer chamber with an opening for fitting over the extraction inner chamber; the bottom of the extraction outer chamber communicating with the dispensing port and having a second piercing claw; and the pure water outlet connecting to the pure water channel.

[0027] The coffee and tea bar machine and its dispensing module provided in this application embodiment have the following technical advantages compared to the prior art:

[0028] The dispensing unit integrates two independent water channels: an extraction water channel for delivering high-temperature, high-pressure hot water to brew coffee capsules, and a pure water channel for delivering room-temperature or heated purified water for direct drinking or rinsing. The extraction chamber has an internal cavity to hold the coffee capsules; the top of this cavity features a first piercing claw and an extraction water outlet. The first piercing claw pierces the capsule's outer membrane, and the extraction water outlet connects to the extraction water channel. The bottom of the extraction chamber has an opening for the extraction liquid to flow out. The first piercing claw pierces the capsule's outer shell, allowing hot water to spray into the capsule from the extraction water channel. This allows users to easily remove the entire lower cover assembly for thorough rinsing of residual coffee grounds and limescale. If the dispensing outlet is clogged or components are worn, the lower cover assembly can be replaced individually without needing to be returned to the factory. This dispensing module allows for quick disassembly and cleaning of the entire module, solving problems inherent in traditional capsule machines. The bidirectional piercing mechanism ensures more even and complete extraction. The extraction water channel and pure water channel are physically isolated, guaranteeing drinking water safety. The modular design allows for individual replacement of damaged parts. Attached Figure Description

[0029] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0030] Figure 1 This is a schematic diagram of the structure of a coffee and tea bar machine provided in an embodiment of this application;

[0031] Figure 2 A schematic diagram of the structure with the lower cover of the discharge port in the open state, provided in an embodiment of this application;

[0032] Figure 3 A schematic diagram of the structure of the discharge port cover in a closed state provided in an embodiment of this application;

[0033] Figure 4 A schematic diagram of the mounting structure of the base provided in an embodiment of this application;

[0034] Figure 5 This is a cross-sectional view of the discharge module provided in an embodiment of this application;

[0035] Figure 6 This is a schematic diagram of the structure of the discharge port lower cover assembly provided in an embodiment of this application;

[0036] Figure 7 This is a schematic diagram of the structure of the base provided in an embodiment of this application.

[0037] The following labels are shown in the attached diagram:

[0038] Tea bar machine 200, discharging module 1, tea bar machine body 2, tabletop 3, backrest 4, display panel 5;

[0039] 101. Top cover of discharge port, 102. Discharge body, 103. Bottom cover of discharge port, 104. Base, 105. Outer extraction chamber, 106. Inner extraction chamber, 107. Anti-detachment spring, 108. Extraction water channel, 109. Pure water channel, 110. Pure water outlet, 111. Second sealing ring, 111. Coffee capsule, 112. First puncture claw, 113. Water channel sealing ring, 114. Third sealing ring, 115. First sealing ring, 116. Second puncture claw, 117. Discharge port, 118. Pure water outlet pipe seat, 119. Discharge chamber, 1110. Pure water outlet chamber, 1111. Mounting seat, 1112. Recessed mounting seat, 1113. Detailed Implementation

[0040] This invention discloses a coffee and tea bar machine and its dispensing module, which solves the problem that the existing water outlet structure is an integrated set, and coffee residue is easy to accumulate inside the drip filter, making it difficult to clean thoroughly.

[0041] To make the technical solutions and advantages of the embodiments of this application clearer, the exemplary embodiments of this application will be described in further detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not an exhaustive list of all embodiments. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other.

[0042] Example 1

[0043] Please see Figure 1-7 , Figure 1This is a schematic diagram of the structure of a coffee and tea bar machine provided in an embodiment of this application; Figure 2 A schematic diagram of the structure with the lower cover of the discharge port in the open state, provided in an embodiment of this application; Figure 3 A schematic diagram of the structure of the discharge port cover in a closed state provided in an embodiment of this application; Figure 4 A schematic diagram of the mounting structure of the base provided in an embodiment of this application; Figure 5 This is a cross-sectional view of the discharge module provided in an embodiment of this application; Figure 6 This is a schematic diagram of the structure of the discharge port lower cover assembly provided in an embodiment of this application; Figure 7 This is a schematic diagram of the structure of the base provided in an embodiment of this application.

[0044] In one specific embodiment, the dispensing module 1 of the coffee and tea bar machine 200 provided in this application includes a dispensing body 102 and a dispensing port cover assembly; wherein, the bottom of the dispensing body 102 is provided with an opening, the inner cavity of the dispensing body 102 is provided with an extraction water channel 108, a pure water channel 109, and an extraction chamber 106 for placing coffee capsules 112, the bottom of the extraction chamber 106 is provided with an opening, and the top of the extraction chamber 106 is provided with a first piercing claw 113 and an extraction water channel 108; the dispensing port The lower cover assembly is detachably and fixedly connected to the discharge body 102; the bottom of the discharge port lower cover assembly is provided with a discharge port 118 and a pure water outlet 110, and the top of the discharge port lower cover assembly is provided with an extraction outer chamber 105, the top of the extraction outer chamber 105 is provided with an opening for fitting onto the outside of the extraction inner chamber 106; the bottom of the extraction outer chamber 105 is provided with a second piercing claw 117 and an extraction discharge port, the extraction discharge port is used to communicate with the discharge port 118; the pure water outlet 110 is connected to the pure water channel 109.

[0045] The main body 102 integrates two independent water channels: the extraction water channel 108, which transports high-temperature and high-pressure hot water for brewing coffee capsules 112; and the pure water channel 109, which transports room-temperature or heated pure water for direct drinking or washing. The extraction chamber 106 has an internal cavity for accommodating coffee capsules 112. The top of the internal cavity is equipped with a first piercing claw 113 and an outlet of the extraction water channel 108. The first piercing claw 113 is used to pierce the capsule membrane, and the outlet of the extraction water channel 108 is connected to the extraction water channel 108. The bottom of the extraction chamber 106 has an opening for the extraction liquid to flow out. The first piercing claw 113 is usually composed of multiple sharp protrusions or needle-like structures and is located at the top center of the extraction chamber 106. When the capsule is inserted, it rises, and the first piercing claw 113 pierces the capsule shell, allowing hot water to spray into the capsule from the extraction water channel 108.

[0046] Understandably, the main body 102 is the upper fixed part of the module, which is usually fixed to the main unit; the lower cover assembly of the outlet is the lower movable part of the module, which can be disassembled and installed by means of clips, threads or magnetic attraction; thus, users can easily remove the entire lower cover assembly to thoroughly rinse away residual coffee grounds and limescale; if the outlet is blocked or the parts are worn out, the lower cover assembly can be replaced separately without returning it to the factory; this prevents bacteria from growing in hidden corners and meets food-grade safety requirements.

[0047] The top of the discharge port cover assembly is equipped with an outer extraction chamber 105, which is a sleeve-type structure. When the discharge port cover assembly is installed in place, the outer extraction chamber 105 is inserted into the inner cavity of the discharge body 102 and covers the inner extraction chamber 106 inside the discharge body 102 from below, forming a nested double chamber structure. It can be understood that there are sealing elements between the outer extraction chamber 105 and the discharge body 102, and between the inner extraction chamber 106 and the outer extraction chamber 105. The outer extraction chamber 105 plays a role in radial positioning and axial limiting of the inner extraction chamber 106, ensuring accurate puncture action. The cooperation of the inner and outer chambers makes the entire extraction chamber sealed, preventing high-pressure extractant from splashing. Preferably, the second piercing claw 117 is located at the center of the bottom of the outer chamber and protrudes upwards. When the capsule cup is pressed between the inner and outer chambers, the second piercing claw 117 simultaneously pierces the filter membrane at the bottom of the capsule. The extraction outlet is located at the bottom of the outer chamber, directly opposite the second piercing claw 117, guiding the extract into the outlet 118 below. After the coffee capsule 112 is placed into the extraction inner chamber 106, the outlet cover assembly is installed in place, the extraction outer chamber 105 covers the extraction inner chamber 106, and the machine-driven pressure rod presses down on the coffee capsule 112. The first piercing claw 113 at the top pierces the upper membrane of the coffee capsule 112, and hot water is injected. The second piercing claw 117 at the bottom pierces the lower membrane of the coffee capsule 112, and the coffee liquid flows out through the extraction outlet. Thus, the simultaneous piercing from top and bottom ensures uniform water flow and more thorough extraction. The bottom piercing combined with the large-diameter outlet reduces the risk of coffee grounds clogging.

[0048] The pure water outlet 110 connects to the pure water path 109. After the lower cover assembly of the outlet is installed, the pure water outlet 110 at its bottom automatically aligns with and seals with the outlet of the pure water path 109 inside the main body 102. When the user selects the "pure water" mode, the water flows directly from the pure water path 109 and the pure water outlet 110 without passing through the capsule chamber. This allows for one-button switching between "coffee" and "pure water" modes without replacing any parts. The pure water path completely avoids the coffee residue area, ensuring water purity. This allows a single device to meet multiple needs such as coffee, hot water, and room temperature water, achieving functional integration.

[0049] The above-mentioned discharge module 1 enables quick disassembly and washing of the entire module, solving the problems of traditional capsule machines; through bidirectional puncture from the top and bottom, extraction is more uniform and thorough; the extraction water channel 108 and the pure water channel 109 are physically isolated to ensure drinking water safety; the modular design allows for individual replacement of damaged parts.

[0050] In one embodiment, the discharge port lower cover assembly includes:

[0051] The lower cover 103 of the discharge port is provided with a discharge port 118 and a pure water outlet 110.

[0052] The base 104 is detachably fixed to the top of the lower cover 103 of the discharge port; the top of the base 104 is provided with a pure water outlet pipe seat 119, one end of which is used to connect with the pure water channel 109, and the other end is connected to the pure water outlet 110; the extraction outer chamber 105 is provided on the base 104.

[0053] The lower cover 103 of the dispensing port is the bottom outer shell of the dispensing port lower cover assembly, directly facing the user's cup receiving area. It integrates a dispensing port 118 and a pure water outlet 110. The dispensing port 118 is used to discharge coffee extract, and the pure water outlet 110 is used to discharge drinking water or hot water. It is usually made of food-grade plastic injection molding, with a smooth surface that is easy to clean. This makes the water outlet path clearly separated, avoiding coffee residue from contaminating the pure water outlet and ensuring drinking water hygiene. The dual outlets are arranged in a centralized manner, which improves the product's aesthetics and human-computer interaction experience.

[0054] The base 104, serving as an intermediate functional support, is installed above the lower cover 103 of the discharge port and is typically detachably fixed using clips, screws, or quick-connect structures. It separates the lower cover 103 of the discharge port from the core functional components, the base 104 and the extraction chamber 105, facilitating step-by-step assembly and maintenance. If the pure water passage is blocked or the extraction chamber 105 is damaged, only the base 104 needs to be replaced, without replacing the entire lower cover. The lower cover can be made of materials with optimized appearance, while the base 104 can be made of engineering plastics with higher strength, achieving a balance between cost and performance. The pure water outlet pipe seat 119 is a hollow tubular protrusion or interface structure, forming a guide channel for pure water from the main unit to the outlet. It can be understood that the inlet diameter of the pure water outlet pipe seat 119 is larger than the diameter of the pure water path 109. When the outlet cover assembly is installed on the discharge body 102: the upper end of the pure water outlet pipe seat 119 automatically aligns with the outlet of the pure water path 109 within the discharge body 102; the lower end of the pure water outlet pipe seat 119 connects to the pure water outlet 110 on the outlet cover 103 through an internal flow channel. The pipe seat structure ensures reliable water path connection every time it is installed, preventing leakage. The pure water outlet pipe seat 119 provides a dedicated, sealed, and error-proof connection structure, eliminating leakage and mixing. This reduces water flow resistance and dead zones, improves water output efficiency, and reduces the risk of scale buildup. The extraction chamber 105 is directly integrated or fixed to the top of the base 104, and can be combined with the base 104 by one-piece injection molding, ultrasonic welding or insert molding. The extraction chamber 105 is supported by the base 104 as a whole, and is not easily deformed when subjected to the compression force of the coffee capsule 112, ensuring the accuracy of the upper and lower piercing action. The extraction chamber 105 is fixed to the rigid base 104, which improves the mechanical stability of the piercing and extraction process. The extraction chamber 105 and the pure water outlet pipe seat 119 are on the same base 104, ensuring its concentricity with the extraction chamber 106 inside the dispensing body 102. The extraction chamber 105 does not need to be installed separately to the lower cover, reducing the number of parts and assembly steps.

[0055] Furthermore, the base 104 is provided with a base outlet that connects to the bottom of the extraction outer chamber 105;

[0056] The lower cover 103 of the discharge port has a discharge chamber 1110 and a pure water discharge chamber 1111. The discharge chamber 1110 is provided with a discharge port 118, and the pure water discharge chamber 1111 is provided with a pure water outlet 110. The discharge chamber 1110 is connected to the discharge port of the base, and the pure water discharge chamber 1111 is connected to the pure water outlet pipe seat 119.

[0057] The base outlet is a through hole or channel located on the base 104, directly opposite the bottom of the extraction chamber 105. The bottom of the extraction chamber 105 has an extraction outlet; when the capsule is punctured, the coffee liquid flows out from the bottom of the chamber and directly into the base outlet. This outlet is typically located in the center of the base 104, coaxially aligned with the extraction chamber 105. The path of the extracted liquid from the extraction chamber 105 to the base outlet is extremely short, reducing the risk of residue and clogging; it prevents liquid splashing or flowing along the surface of the base 104, keeping the interior clean; and by integrating the outlet into the base 104, no additional piping is required, simplifying assembly. The lower cover 103 of the discharge port has a hollow structure. In one embodiment, it forms two independent and closed hollow chambers through injection molding. The two chambers are completely isolated in space and have no connecting channels. Even with long-term use, coffee oils and residues cannot enter the pure water flow channel, ensuring drinking water safety. When the base 104 is installed on the lower cover 103 of the discharge port, the discharge port of the base is aligned with the top inlet of the discharge chamber 1110. The discharge chamber 1110 extends downwards and connects to the discharge port at the bottom of the lower cover. This allows the extract to flow in a closed channel throughout the entire process, with no exposed sections, avoiding dripping and contamination. The chamber can be designed as conical or flared to reduce flow resistance and accelerate the drainage speed. The flow channel is smooth and has no dead corners, allowing residual liquid to be easily flushed away with the water flow. The pure water flow path consists of: a pure water path 109 for the main unit, a pure water outlet pipe seat 119, a pure water outlet chamber 1111, a pure water outlet 110, and a user's water cup. The top of the pure water outlet chamber 1111 has an interface that connects to the pure water outlet pipe seat 119 on the base 104. The pure water path 109 is an independent pure passage, and the pure water never comes into contact with the coffee system, so the water quality is always clean. The chamber design can optimize the water flow pattern and reduce turbulence and bubbles.

[0058] It integrates a completely isolated discharge chamber 1110 and a pure water discharge chamber 1111 within a single outer shell, achieving dual-use functionality and safe separation. The base discharge port is precisely aligned to ensure efficient introduction of the extract into the discharge chamber 1110, preventing spillage or residue. From the outer extraction chamber 105 to the base 104 and then to the lower cover chamber, a closed flow chain without exposed sections is formed, improving product reliability. The base discharge port and the pure water discharge pipe seat 119 serve as standardized interfaces to adapt to different lower cover variations (such as single / double cup water discharge).

[0059] In another embodiment, the base 104 is provided with external threads in the circumference, and the inner wall of the discharge body 102 is provided with a stop block for limiting the rotation angle of the discharge port cover assembly.

[0060] Continuous or intermittent external threads are machined on the outer circumferential surface of the base 104, serving as a guide and positioning track. In conjunction with the stop block inside the discharge body 102, the discharge port lower cover assembly can be installed onto the discharge body 102 by rotation. The stop block is a raised structure, which can be rib-shaped, block-shaped, or locally thickened, and is fixed at a specific circumferential position on the inner wall of the discharge body 102. When the user rotates to install the discharge port lower cover assembly, a certain part of the base 104, such as the thread termination end, the positioning lug, or the base 104 body, will touch the stop block, thereby preventing further rotation. It can be understood that the position of the stop block is precisely designed to ensure that the assembly can only be rotated to a single correct angle before being limited. Users simply need to align the lower cover assembly and rotate it a certain angle (e.g., 30°–90°) to lock it in place; the operation is simple. The threaded guide automatically centers the assembly during screwing, improving assembly accuracy. No additional clips or screws are required, saving space. It ensures that key components such as the pure water outlet pipe seat 119 and the extraction outer chamber 105 are always in the preset position after each installation, preventing misalignment that could lead to leakage or puncture failure. It prevents users from installing in reverse or rotating excessively, improving safety. There is no need to rely on sensors to determine the installation status; purely mechanical limits ensure functionality.

[0061] Specifically, the user aligns the lower cover assembly of the discharge port with the opening of the discharge body 102; presses down and rotates clockwise; the external thread of the base 104 slides into the guide structure on the inner wall of the body; when rotated to a set angle (such as 90°), a certain part of the base 104 hits the stop block and cannot continue to rotate; at this time, the pure water outlet pipe seat 119 is directly opposite the outlet of the pure water circuit 109 of the main unit, the outer extraction chamber 105 is directly opposite the inner extraction chamber 106, and the discharge port faces the user's cup receiving area - all functions are aligned.

[0062] Furthermore, the top of the base 104 is provided with a set of upwardly extending mounting seats 1112, and the circumferential outer wall of the mounting seats 1112 is provided with external threads. The mounting seats 1112 are one or more columnar / cylindrical structures protruding vertically upward from the top surface of the base 104, typically 2 to 3, symmetrically distributed; the mounting seats 1112 do not continuously surround the entire circumference of the base 104, but exist in the form of "discrete lugs," forming local support points; the height of the mounting seats 1112 is slightly higher than the body of the base 104, allowing them to first enter the mating cavity of the discharge body 102 during assembly. The external threads are only distributed on the outer cylindrical surface of each mounting seat 1112; a matching stop is provided at a corresponding position on the inner wall of the discharge body 102. When the lower cover assembly is rotated, the external threads on the mounting seats 1112 engage with them to achieve a "screw-in-lock" action. Simultaneously, the stop is usually located in the gap area between two mounting seats 1112, used to prevent the mounting seats 1112 from continuing to rotate at the end of the rotation. Compared to machining threads on the entire outer circumference of the base 104, setting threads only on the partial mounting seat 1112 can reduce material usage and achieve weight reduction; improve rigidity: the mounting seat 1112 acts as a reinforcing rib, enhancing the structural strength of the top of the base 104, and is less prone to deformation, especially when subjected to tightening torque; facilitate demolding: during injection molding, the discrete mounting seat 1112 is easier to demold than the full circumference thread, reducing mold complexity and manufacturing costs.

[0063] In another embodiment, the extraction chamber 106 is located at the radial center of the discharge body 102;

[0064] The extraction outer chamber 105 is located at the radial center of the base 104. The bottom of the extraction outer chamber 105 is provided with a first sealing ring 116, which is used to face the bottom outer edge of the extraction inner chamber 106.

[0065] The inner cavity of the discharge body 102 is provided with a second sealing ring 111, which is used to seal with the top inner edge of the extraction outer chamber 105.

[0066] In the horizontal cross-section, the geometric centers of the inner extraction chamber 106 and the outer extraction chamber 105 coincide with the central axis of the discharge body 102 and the base 104. When the lower cover assembly of the discharge port is installed in place, the outer extraction chamber 105 can be precisely fitted outside the inner extraction chamber 106, and the two are coaxially aligned. This ensures that the upper and lower piercing claws (top of the inner chamber and bottom of the outer chamber) act on the same axis of the capsule, avoiding eccentric piercing that could lead to leakage or uneven extraction. The capsule is subjected to symmetrical force during the compression process, reducing the risk of breakage or seal failure. Even if the user installs it manually, the concentric design can automatically compensate for minor deviations and improve robustness.

[0067] The first sealing ring 116 is embedded in the bottom end face or inner step of the outer extraction chamber 105. After the bottom cover assembly is installed, the first sealing ring 116 is pressed against the bottom outer edge of the inner extraction chamber 106, that is, the annular flange or outer wall at the lower end of the inner chamber, forming a bottom sealing interface. This seal occurs at the bottom of the extraction chamber to prevent the extract from leaking downward from the gap between the inner and outer chambers. Specifically, the capsule is pressed between the inner and outer chambers, and the inner and outer chambers are close to each other. The first sealing ring 116 is compressed to form a dynamic seal, preventing high-pressure hot water and coffee liquid from seeping out from the bottom of the extraction chamber and avoiding contamination of the machine's interior.

[0068] The second sealing ring 111 is installed at a specific position in the inner cavity of the discharge body 102, such as the inner wall annular groove or end face step, located in the area above the extraction inner chamber 106; when the lower cover assembly is screwed into place, the top inner edge of the extraction outer chamber 105, that is, the inner edge of its upper opening, presses the second sealing ring 111 to form an upper sealing interface; this seal occurs on the upper periphery of the extraction chamber to prevent water from seeping into the gap of the lower cover assembly from the side of the main unit.

[0069] The second sealing ring 111 cooperates with the first sealing ring 116 to form a high-pressure sealing cavity with full circumference and double sealing at the top and bottom, which is far more reliable than single-point sealing; it prevents the extract liquid from flowing back into the main unit's water circuit or electrical control area, thus improving safety; the sealed cavity maintains stable pressure, allowing hot water to fully penetrate the coffee powder, thereby improving the extraction rate and flavor.

[0070] The specific workflow is as follows: the user inserts the capsule into the extraction chamber 106; the lower cover assembly of the outlet is installed, and the extraction outer chamber 105 is fitted into the extraction inner chamber 106; the machine pressure rod presses down on the capsule, clamping it between the extraction inner and outer chambers; the first sealing ring 116 is compressed between the bottom edge of the extraction inner chamber 106 and the bottom surface of the extraction outer chamber 105 to seal the bottom; the second sealing ring 111 is compressed between the top inner edge of the extraction outer chamber 105 and the outlet body 102 to seal the top periphery; the coffee liquid injected into the capsule by high temperature and high pressure can only flow out from the bottom outlet of the extraction outer chamber 105 and enter the outlet chamber 1110 to complete the extraction.

[0071] Furthermore, the bottom inner wall of the extraction chamber 106 is provided with a third sealing ring 115 for sealing the coffee capsule 112 and the extraction chamber 106.

[0072] The third sealing ring 115 is embedded in the annular groove on the inner side of the bottom of the extraction chamber 106, located at the lower part of the chamber near the opening; so that when the coffee capsule 112 is pressed into the extraction chamber 106, the bottom edge or skirt of the capsule (i.e., the annular flange connecting the capsule body and the filter membrane) is pressed against the sealing ring. The sealing ring acts between the capsule body and the metal / plastic wall of the chamber, which is a capsule-level seal.

[0073] During the extraction process, high-temperature, high-pressure hot water (typically 85–95℃, pressure 0.8–2 bar) is injected into the capsule from the top. If there is a gap between the capsule and the wall of the extraction chamber 106, water or coffee liquid will leak down the side wall, resulting in insufficient extraction pressure and weak coffee; or liquid may splash into the main unit, contaminate the circuitry, or breed bacteria; making cleaning difficult for users and degrading the experience. The third sealing ring 115, through elastic compression, forms a radial sealing barrier between the capsule skirt and the wall of the extraction chamber 106, forcing water to only penetrate the coffee powder inside the capsule and flow out from the bottom filter membrane. The specific working process is as follows: the capsule is inserted, the lower cover assembly of the outlet is screwed upward, and the capsule skirt presses against the third sealing ring 115 to form an initial seal; as the water pressure increases, the sealing ring is compressed even tighter, further enhancing the sealing effect. The third sealing ring 115 ensures that all water flow must penetrate the coffee grounds, improving extraction rate and flavor concentration, and preventing short-circuit dilution; even if the capsule has minor deformation or tolerance, the third sealing ring 115 can still provide a reliable seal to prevent side leakage; it also prevents coffee residue from remaining in the inner wall and capsule gap, avoiding mold and odor residue.

[0074] In one optional embodiment, the discharge body 102 is provided with a recessed mounting base 1113 inside, and the extraction chamber 106 is detachably fixed to the bottom wall of the recessed mounting base 1113; the second sealing ring 111 is provided on the circumferential outer edge of the recessed mounting base 1113.

[0075] The sunken mounting base 1113 is equipped with an extraction water passage 108 mounting pipe seat. One end of the extraction water passage 108 mounting pipe seat is detachably and fixedly connected to the extraction water passage 108, and the other end is connected to the extraction inner chamber 106.

[0076] The dispensing body 102 has a horizontal partition inside, dividing the interior of the dispensing body 102 into upper and lower cavities, forming independent functional areas. The recessed mounting base 1113 is set on the bottom wall of the horizontal partition, used to centrally arrange the core components related to extraction; it physically isolates the extraction functional area (inner chamber, water channel, seal) from pure water or other flow channels to avoid interference; the recessed area has a thicker wall, which can withstand higher assembly force and water pressure; the extraction inner chamber 106 is installed on the bottom plane of the recessed mounting base 1113, and can be quickly installed and removed by means of buckles, threads, quick connectors, etc.; users or after-sales personnel can remove the extraction inner chamber 106 separately for cleaning or replacement without disassembling the entire dispensing body 102; the inner chamber is in long-term contact with coffee oils and is prone to scaling, and the removable design solves the problem of hygiene dead corners; the second sealing ring 111 is used to seal the dispensing body 102 and the top inner edge of the extraction outer chamber 105. When the lower cover assembly of the dispensing port is installed in place, the top inner edge of the extraction outer chamber 105 is pressed against this sealing ring.

[0077] The extraction water circuit 108 mounting base is a hollow tubular interface on the submerged mounting base 1113, such as a quick-connect fitting, threaded nozzle, or clamp. Its upper / side end is detachably connected to the extraction water circuit 108 inside the main unit via quick-connect fittings, threads, or other means. Its lower end leads directly to the top center of the extraction chamber 106 and communicates with the area of ​​the first piercing claw 113 for injecting high-pressure hot water.

[0078] The extraction water path 108 and its mounting base are secured by a retaining spring 107. Simultaneously, a water path sealing ring 114 is installed inside the mounting base to provide a sealed connection with the extraction water path 108. The extraction water path 108 connects to the inner chamber via a standard interface, facilitating assembly and after-sales replacement. The inner diameter of the mounting base can be precisely designed to ensure stable water flow speed and pressure, improving extraction consistency. This allows the inner chamber 106 to be disassembled independently, completely solving the cleaning problem. The second sealing ring 111 is positioned on a rigid recessed seat, ensuring high sealing consistency. Functionality is concentrated in the recessed seat, reducing the complexity of overall assembly. Integrating the inner chamber, sealing ring, and water path interface into a single recessed structure achieves a functional island design. Breaking through the limitations of traditional integrated inner chambers, it provides users with deep cleaning and specification switching capabilities. The positioning of the second sealing ring 111 and the mounting base of the extraction water path 108 provides an interface foundation for automated assembly and after-sales maintenance. Through structural layering and modular decoupling, the risk of overall machine failure due to the failure of a single component is significantly reduced.

[0079] In one embodiment, a preset interval is provided between the discharge port 118 and the pure water outlet 110. The discharge port 118 and the pure water outlet 110 maintain a certain distance in the horizontal direction to prevent cross-contamination; the preset interval can be 3-15mm, preferably 4mm, to prevent coffee liquid from mixing with pure water and ensure drinking water safety; improve user experience and ease of operation; facilitate cleaning and maintenance; and enhance the product's appearance and sense of order.

[0080] In another embodiment, the top of the discharge body 102 is also provided with a discharge port cover 101, and the discharge port cover 101 and the discharge body 102 are connected by a snap fastener to further achieve quick disassembly.

[0081] Example 2

[0082] Based on the above-mentioned discharging module 1, this application also provides a coffee and tea bar machine 200, including:

[0083] The discharge module 1 of any of the above embodiments;

[0084] The main body 2 of the tea bar machine has a tabletop 3 and a backrest. The backrest is equipped with a dispensing module 1 and a display panel 5.

[0085] In one specific embodiment, the backrest is fixed to the tabletop 3 with screws, and the discharge module 1 is connected and fixed to the backrest with screws. The discharge module 1 is fixed to the discharge body 102 with clips, and the discharge port lower cover assembly is locked to the discharge body 102 by rotating 90° clockwise; the pure water outlet 110 is embedded between the base 104 and the discharge port lower cover 103, the extraction outer chamber 105 is installed on the base 104 with a concentric clearance fit, and the extraction water channel 108 is fixed to the extraction inner chamber 106 by a locking spring 107 and a water channel sealing ring 114. After rotating 90° to the final position, the pure water channel 109 will connect to the pure water channel on the base 104. The first piercing claw 113 is connected to the discharge body 102 by screws, the second sealing ring 111 is connected to the discharge body 102 by concentric interference fit, the third sealing ring 115 is injection molded on the inner extraction chamber 106, and the first sealing ring 116 is injection molded on the outer extraction chamber 105.

[0086] The lower cover 103 of the outlet, the base 104, the pure water outlet 110, and the extraction outer chamber 105 can be disassembled and removed as a whole at the positions shown in the diagram for easy cleaning of the outlet. The lower cover 103 of the outlet, the base 104, the pure water outlet 110, and the extraction outer chamber 105 can be rotated 90° (clockwise in the top view) to lock them in place. During this process, the coffee capsule 112 rises 5mm with the whole assembly, and the first piercing claw 113 pierces the coffee capsule 112, creating three symmetrically distributed water inlets. During the rotation and locking process, the second sealing ring 111 is pressurized to seal and isolate the extraction outer chamber 105 and the extraction inner chamber 106 from each other, and the first sealing ring 116 is pressurized to seal and isolate the coffee capsule 112 and the extraction outer chamber 105 from each other.

[0087] High-pressure water is injected into the extraction chamber 106 through the extraction water channel 108. It enters the coffee capsule 112 through three symmetrically distributed inlets formed by the first piercing claw 113. The aluminum foil seal at the bottom of the coffee capsule 112 bulges and interferes with the bottom of the extraction chamber 105. The bottom aluminum foil seal is pierced by the second piercing claw 117, and the coffee liquid flows from the small hole at the bottom of the extraction chamber 105 to the base 104, exiting from the bottom of the left side of the base 104. Pure water flows through the pure water channel 109 through the through hole on the right side of the pure water channel 109 in the base 104 and exits from the pure water outlet 110. After the pure water outlet 110 is fitted with the lower cover 103 of the discharge port on the base 104, a 4mm water outlet isolation zone is formed between the two outlets to prevent the coffee liquid from mixing with the pure water.

[0088] Although preferred embodiments of this application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this application.

[0089] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

Claims

1. A dispensing module for a coffee and tea bar machine, characterized in that, include: The dispensing body has an opening at the bottom. The inner cavity of the dispensing body has an extraction water channel, a pure water channel, and an extraction chamber for placing coffee capsules. The bottom of the extraction chamber has an opening, and the top of the extraction chamber has a first piercing claw and the extraction water channel. The discharge port lower cover assembly is detachably and fixedly connected to the discharge body; the bottom of the discharge port lower cover assembly is provided with a discharge port and a pure water outlet, the top of the discharge port lower cover assembly is provided with an extraction outer chamber, the top of the extraction outer chamber is provided with an opening for fitting onto the outside of the extraction inner chamber; the bottom of the extraction outer chamber is connected to the discharge port and is provided with a second piercing claw; the pure water outlet is connected to the pure water channel.

2. The dispensing module of the coffee and tea bar machine according to claim 1, characterized in that, The discharge port lower cover assembly includes: A lower cover for the discharge port, wherein the lower cover for the discharge port is provided with the discharge port and the pure water outlet; The base is detachably fixed to the top of the lower cover of the discharge port; the top of the base is provided with a pure water outlet pipe seat, one end of which is used to connect with the pure water circuit, and the other end is connected to the pure water outlet; the extraction outer chamber is provided on the base.

3. The dispensing module of the coffee and tea bar machine according to claim 2, characterized in that, The base is provided with a base outlet that connects to the bottom of the extraction chamber; The lower cover of the discharge port has a discharge chamber and a pure water discharge chamber. The discharge chamber is provided with the discharge port, and the pure water discharge chamber is provided with the pure water outlet. The discharge chamber is connected to the discharge port of the base, and the pure water discharge chamber is connected to the pure water outlet pipe seat.

4. The dispensing module of the coffee and tea bar machine according to claim 2, characterized in that, The base has an external thread in its circumference, and the inner wall of the discharge body has a stop block for limiting the rotation angle of the discharge port cover assembly.

5. The dispensing module of the coffee and tea bar machine according to claim 4, characterized in that, The base has an upwardly extending set of mounting seats at its top, and the circumferential outer wall of the mounting seats is provided with external threads.

6. The dispensing module of the coffee and tea bar machine according to claim 2, characterized in that, The extraction chamber is located at the radial center of the discharge body; The outer extraction chamber is located at the radial center of the base, and a first sealing ring is provided at the bottom of the outer extraction chamber. The first sealing ring is used to face the bottom outer edge of the inner extraction chamber. The inner cavity of the discharge body is provided with a second sealing ring for sealing with the top inner edge of the extraction outer chamber.

7. The dispensing module of the coffee and tea bar machine according to claim 6, characterized in that, The bottom inner wall of the extraction chamber is provided with a third sealing ring for sealing the coffee capsule and the extraction chamber.

8. The dispensing module of the coffee and tea bar machine according to claim 6, characterized in that, The discharge body is provided with a sinking mounting base inside, and the extraction chamber is detachably fixed to the bottom wall of the sinking mounting base; the second sealing ring is provided on the circumferential outer edge of the sinking mounting base; The sinking mounting base is equipped with an extraction water circuit mounting pipe seat. One end of the extraction water circuit mounting pipe seat is detachably and fixedly connected to the extraction water circuit, and the other end is connected to the extraction inner chamber.

9. The dispensing module of the coffee and tea bar machine according to any one of claims 1-8, characterized in that, A preset interval is provided between the discharge port and the pure water outlet.

10. A coffee and tea bar machine, characterized in that, include: The discharge module according to any one of claims 1-9; The main body of the tea bar machine has a tabletop and a backrest, and the backrest is equipped with the dispensing module and the display panel.

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