A foaming system

Abstract

This utility model relates to the field of beverage foaming technology, and mainly to a foaming system. It includes a water pump, a heating element, a multi-port connector, an air pump, another multi-port connector, and a foaming rod. The water pump, heating element, and foaming rod are sequentially connected via pipes, and the air pump is connected to the foaming rod via the multi-port connector. This utility model uses the water pump and heating element to generate steam, which is then delivered to the foaming rod. The air pump actively introduces air, and the air and generated steam are delivered to the foaming rod to facilitate foaming. Compared to methods that rely solely on steam pressure to introduce air, the amount of air introduced is more stable, which helps improve the stability of milk foam formation.

Description

Technical Field

[0001] This utility model relates to the field of beverage foaming technology, and mainly to a foaming system. Background Technology

[0002] In the beverage production industry, milk foam is created using a foaming system. Currently, these systems primarily generate steam using a boiler, and air is introduced into the milk container via an air vent in the steam supply pipeline. This method of introducing air through steam pressure results in significant fluctuations depending on the boiler's output steam pressure, limiting the reproducibility and stability of the foam formation.

[0003] In addition, frothers are key tools for making milk foam and are widely used in the processing of beverages such as coffee and milk tea. The foaming effect of milk is closely related to temperature; only when milk is within a specific temperature range can it form fine, stable, and delicious foam. Therefore, monitoring the milk temperature is essential.

[0004] Currently, the mainstream method for monitoring milk temperature mainly involves placing a temperature sensor at the bottom of the frothing cup to indirectly sense the temperature of the milk foam by measuring the temperature at the bottom of the cup. The principle of milk foam generation with a frothing stick is to inject a mixture of air and steam into the milk, achieving foaming through the interaction between the gas and the milk. However, this gas mixture itself has a certain temperature and directly affects the surface of the milk. Existing frothing sticks typically place the temperature sensor near the outlet of the gas mixture, making it susceptible to direct contact or influence from the temperature of the gas mixture, resulting in a discrepancy between the temperature detected by the sensor and the actual temperature of the milk. This inaccurate temperature detection makes it difficult for operators to accurately control the milk temperature. Either the temperature is too low, causing the milk foam to be loose and easily dissipate, or the temperature is too high, damaging the protein structure in the milk, affecting the taste and quality of the milk foam, and failing to meet users' demands for high-quality milk foam. In conclusion, the existing technology still needs improvement and development. Utility Model Content

[0005] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a foaming system that solves the problem that existing foaming rods are easily affected by steam when detecting the temperature of the liquid to be foamed.

[0006] The technical solution of this utility model is as follows: This utility model provides a foaming system, which includes a water pump, a heating element, a multi-port connector, an air pump, a multi-port connector, and a foaming rod. The water pump, the heating element, and the foaming rod are connected in sequence through pipes, and the air pump is connected to the foaming rod through the multi-port connector.

[0007] In this invention, by actively introducing air using an air pump, the amount of air introduced is more stable compared to relying solely on steam pressure, which helps to improve the stability of milk foam formation.

[0008] As a further improvement to the above technical solution, the foaming system also includes a detection tube and a pressure sensor, wherein the pressure sensor is located at the detection tube.

[0009] In this invention, by configuring a pressure sensor, in conjunction with an external controller, the pressure information of steam and introduced air can be obtained in a timely manner, so as to adjust the working conditions of the heating element and the air pump in a timely manner and improve the stability of the foaming gas output.

[0010] As a further improvement to the above technical solution, the foaming rod includes: Foamed tubes are tubular structures with openings at both ends. A first separator is disposed inside the foaming tube. The first separator forms a foaming channel and a heat-sensing channel that are not interconnected. Both the foaming channel and the heat-sensing channel are tubular structures with open ends. The inlet end of the foaming channel is used to communicate with the foaming gas, and the outlet end of the foaming channel is used to communicate with the liquid to be foamed. A temperature sensor, in the shape of a column, is installed at the heat-sensing end of the heat-sensing channel, extending beyond the heat-sensing channel, and is used to contact the liquid to be foamed to detect the temperature.

[0011] As a further improvement to the above technical solution, the first separator is provided with a partition portion in the circumferential direction that abuts against the foaming tube, for separating the foaming tube; The first separator forms a wiring cavity with the heat detection channel through one side of the separator and the foam tube, which is used for the passage of the wires that are electrically connected to the temperature sensor; The first separator forms a venting cavity between the other side of the separator and the foaming tube for communicating the foaming channel and the liquid to be foamed.

[0012] As a further improvement to the above technical solution, the inlet end of the foaming channel extends to the side of the first partition away from the venting cavity, and the outlet end of the foaming channel extends to the side of the first partition and communicates with the venting cavity. The heat-sensing end of the heat-sensing channel extends to the other end of the first partition, and the inlet end of the heat-sensing channel extends to the side of the first partition and communicates with the wiring cavity.

[0013] As a further improvement to the above technical solution, a first groove is provided at the inlet end of the foaming channel; The foaming rod also includes: The vent tube is a tubular structure with openings at both ends. One end of the vent tube is connected to the inlet end of the foaming channel. A first limiting part is provided circumferentially on the vent tube. The first limiting part is disposed in the first groove and is used to seal with the first groove.

[0014] As a further improvement to the above technical solution, a second groove is provided at the heat-sensing end port of the heat-sensing channel; The foaming rod also includes: The second separator is a tubular structure with openings at both ends, which surrounds the end of the temperature sensor and is spaced apart from the end face of the temperature sensor. One end of the second separator is connected to the heat-sensing end of the heat-sensing channel through the second groove. The temperature sensor has a second limiting part arranged circumferentially, which is disposed in the second groove. The two sides of the second limiting part are used to abut against the second separator and the bottom surface of the second groove.

[0015] As a further improvement to the above technical solution, the foaming rod further includes: A foam tube cap is provided around the first and second partitions, with one end connected to the opening of the foam tube and the other end connected to the outer periphery of the second partition. The junction of the foam tube cap and the second separator extends in an arc shape toward the second separator, forming a rounded transition structure. An air vent is provided on the rounded transition structure of the foam tube cap, and the air vent is spaced apart from the temperature sensor.

[0016] As a further improvement to the above technical solution, a sealing groove is provided on the partition, extending in the direction along the circumference of the first partition, and a sealing ring is provided in the sealing groove, which abuts against the foaming tube and the sealing groove. A sealing ring is provided between the first limiting part and the first groove, which abuts against both.

[0017] As a further improvement to the above technical solution, the foaming tube has a three-section structure, including a smoothly connected starting section, a middle section, and a foaming section; The starting segment extends vertically, the middle segment extends horizontally, and the foaming segment extends diagonally downward. A hanging ear is provided at the transition between the middle section and the foaming section.

[0018] Beneficial effects: In this invention, steam can be generated by using a water pump and a heating element, and can be delivered to the foaming rod. An air pump is connected to the foaming rod through a multi-port connector. By actively introducing air through the air pump, the air and the generated steam can be delivered to the foaming rod to facilitate foaming. Compared with the method of introducing air solely by relying on steam pressure, the amount of air introduced is more stable, which helps to improve the stability of milk foam formation. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the foaming system of this utility model.

[0020] Figure 2 This is one of the structural schematic diagrams of the foaming rod of this utility model.

[0021] Figure 3 This is the second schematic diagram of the structure of the foaming rod of this utility model.

[0022] Figure 4 This is the third schematic diagram of the structure of the foaming rod of this utility model.

[0023] Figure 5 This is a schematic diagram of the structure of the first separator and the temperature sensor of this utility model.

[0024] Labeling Explanation: 100, Foaming Tube; 110, Starting Section; 120, Middle Section; 130, Foaming Section; 200, First Separator; 210, Foaming Channel; 211, First Groove; 220, Heat Detection Channel; 221, Second Groove; 230, Separator; 231, Sealing Groove; 240, Wiring Chamber; 250, Vent Chamber; 300, Temperature Sensor; 310, Second Limiting Part; 400, Vent Pipe; 410, First Limiting Part; 500, Second Separator; 600, Foaming Tube Cap; 610, Vent Hole; 700, Hanging Ear. Detailed Implementation

[0025] This utility model provides a foaming system. To make the purpose, technical solution, and effects of this utility model clearer and more explicit, the following provides a more detailed description of this utility model. It should be understood that the specific embodiments described herein are merely illustrative of this utility model and are not intended to limit this utility model.

[0026] Reference Figure 1 This utility model provides a foaming system, which includes a water pump, a heating element, a multi-port connector, an air pump, a multi-port connector, and a foaming rod. The water pump, the heating element, and the foaming rod are connected in sequence through pipes, and the air pump is connected to the foaming rod through the multi-port connector.

[0027] In this invention, steam is generated by using a water pump and a heating element and can be delivered to the foaming rod. An air pump is connected to the foaming rod through a multi-port connector. By actively introducing air through the air pump, the air and the generated steam can be delivered to the foaming rod to facilitate foaming. Compared with the method of introducing air solely by relying on steam pressure, the amount of air introduced is more stable, which helps to improve the stability of milk foam formation.

[0028] In one specific embodiment of this utility model, the foaming system further includes a detection tube and a pressure sensor, with the pressure sensor located at the detection tube.

[0029] In this invention, by configuring a pressure sensor, in conjunction with an external controller, the pressure information of steam and introduced air can be obtained in a timely manner, so as to adjust the working conditions of the heating element and the air pump in a timely manner and improve the stability of the foaming gas output.

[0030] Reference Figures 2-5 In one specific embodiment of this utility model, the foaming rod includes: a foaming tube 100, which is a tubular structure with open ends; The first partition 200 is disposed inside the foaming tube 100. The first partition 200 forms a foaming channel 210 and a heat detection channel 220 that are not interconnected. Both the foaming channel 210 and the heat detection channel 220 are tubular structures with open ends. The inlet end of the foaming channel 210 is used to communicate with the foaming gas, and the outlet end of the foaming channel 210 is used to communicate with the liquid to be foamed. Temperature sensor 300, which is columnar in shape, is installed at the heat detection end of heat detection channel 220 and extends out of heat detection channel 220. It is used to contact the liquid to be foamed to detect the temperature.

[0031] In this invention, by setting a first separator 200 inside the foaming tube 100, the foaming channel 210 and the heat sensing channel 220 are completely isolated, and the two are not connected to each other. This structural design fundamentally avoids direct contact between the foaming gas and the temperature sensor 300. The rod-shaped temperature sensor 300 extends out of the heat sensing channel 220 and directly contacts the liquid to be foamed, which can accurately capture the actual temperature of the liquid. This effectively solves the problem of inaccurate detection caused by the temperature interference of the foaming gas in traditional foaming sticks. It helps to ensure that the liquid to be foamed foams within the optimal foaming temperature range, ensuring the fineness and stability of the milk foam and improving the quality of the beverage. At the same time, the tubular foaming channel 210 and the heat sensing channel 220, which are open at both ends, facilitate the smooth flow of foaming gas and the installation, maintenance, and power-on detection of the temperature sensor 300, simplifying the structure while improving reliability.

[0032] In one specific embodiment of the present invention, the first separator 200 is provided with a separator portion 230 in the circumferential direction that abuts against the foam tube 100 for separating the foam tube 100. The first separator 200 forms a wiring cavity 240 communicating with the heat detection channel 220 between one side of the separator 230 and the foam tube 100, for the passage of the wires that are electrically connected to the temperature sensor 300. The first separator 200 forms a venting cavity 250 between the other side of the separator 230 and the foaming tube 100 for connecting the foaming channel 210 and the liquid to be foamed.

[0033] In this invention, the circumferentially oriented partition 230 of the first partition 200 abuts against the foaming tube 100, enhancing the installation stability of the first partition 200 within the foaming tube 100 and preventing positional displacement due to vibration during use. Furthermore, the partition 230 rationally divides the space within the foaming tube 100. The wiring cavity 240 formed on one side of the partition 230 provides independent space for the wires of the temperature sensor 300, preventing direct contact between the wires and the foaming gas flowing through the foaming channel 210. This reduces the impact of high temperatures on the wires and extends their service life. The venting cavity 250 serves as a gas flow path between the foaming channel 210 and the liquid to be foamed, ensuring that the foaming gas can enter the liquid uniformly and smoothly to achieve the foaming effect, further enhancing the foaming performance.

[0034] In one specific embodiment of the present invention, the inlet end of the foaming channel 210 extends to the side end of the first partition 200 away from the venting cavity 250, and the outlet end of the foaming channel 210 extends to the side of the first partition 200 and communicates with the venting cavity 250. The heat-sensing end of the heat-sensing channel 220 extends to the other end of the first partition 200, and the inlet end of the heat-sensing channel 220 extends to the side of the first partition 200 and communicates with the wiring cavity 240.

[0035] In this invention, the inlet end of the foaming channel 210 extends to the side of the first separator 200 away from the venting cavity 250, facilitating connection with an external foaming gas supply device and reducing resistance in the gas transmission path. The outlet end extends to the side and communicates with the venting cavity 250, allowing the foaming gas to enter the venting cavity 250 more evenly, avoiding concentrated gas impact on the liquid and resulting in coarse milk foam. Simultaneously, after the foaming gas is distributed through the side of the first separator 200, the foaming gas and the heat sensing channel 220 are separated by the first separator 200, further reducing the impact on the temperature sensor 300. The heat sensing end of the heat sensing channel 220 extends to the other side of the first separator 200, allowing the temperature sensor 300 to penetrate deeper into the liquid to be foamed, detecting a temperature closer to the overall liquid temperature and further improving detection accuracy. Its inlet end extends to the side and communicates with the wiring cavity 240, facilitating the installation and distribution of wires. Simultaneously, the wires and the foaming channel 210 are separated by the first separator 200, preventing the high temperature of the foaming gas from directly affecting the wires.

[0036] In one specific embodiment of this utility model, a first groove 211 is provided at the inlet end of the foaming channel 210; Foaming sticks also include: The vent pipe 400 is a tubular structure with open ends. One end of the vent pipe 400 is connected to the inlet end of the foaming channel 210. A first limiting part 410 is provided circumferentially in the vent pipe 400. The first limiting part 410 is disposed in the first groove 211 and is used to seal with the first groove 211. The electrical wires and vent pipe 400 can be extended as needed; only a portion of the extension is shown in the figure.

[0037] In this invention, the first groove 211 at the inlet end of the foaming channel 210 is sealed to the first limiting part 410 of the vent pipe 400. This achieves precise positioning and installation of the vent pipe 400 and the foaming channel 210, preventing the vent pipe 400 from loosening or falling off during use, ensuring the airtightness of gas transmission, and preventing leakage of foaming gas that could reduce foaming efficiency. On the other hand, the sealed structure prevents external impurities from entering the foaming channel 210, and the foaming gas is also less likely to leak, enhancing the sealing and stability of the structure and helping to ensure the foaming effect.

[0038] In one specific embodiment of this utility model, a second groove 221 is provided at the heat-sensing end port of the heat-sensing channel 220; Foaming sticks also include: The second separator 500 is a tubular structure with open ends, surrounding the end of the temperature sensor 300 and spaced apart from the end face of the temperature sensor 300. One end of the second separator 500 is connected to the heat-sensing end of the heat-sensing channel 220 through the second groove 221. The temperature sensor 300 is provided with a second limiting part 310 in the circumferential direction, which is disposed in the second groove 221. The two sides of the second limiting part 310 are used to abut against the bottom surface of the second separator 500 and the second groove 221.

[0039] In this invention, the temperature sensor 300 extends beyond the heat detection channel 220. The second separator 500 protects and isolates the temperature sensor 300, preventing the foaming gas flowing from the side of the first separator 200 from directly contacting it. Simultaneously, the second separator 500 is spaced apart from the end face of the temperature sensor 300, ensuring effective contact area between the temperature sensor 300 and the liquid, thus not affecting the temperature detection sensitivity. The second groove 221 allows the second circumferential limiting part 310 of the temperature sensor 300 to abut against the second separator 500 and the bottom surface of the second groove 221, facilitating the positioning, installation, disassembly, and maintenance of the temperature sensor 300 and the second separator 500. It also prevents the temperature sensor 300 from shaking or detaching during use.

[0040] In one specific embodiment of this utility model, the foaming rod further includes: The foam tube cap 600 is arranged around the first separator 200 and the second separator 500, with one end connected to the opening of the foam tube 100 and the other end connected to the outer periphery of the second separator 500. The junction of the foam tube cap 600 and the second separator 500 extends in an arc shape toward the second separator 500, forming an arc transition structure. An air vent 610 is provided on the arc transition structure of the foam tube cap 600, and the air vent 610 is spaced apart from the temperature sensor 300.

[0041] In this invention, the foaming tube cap 600 surrounds the first separator 200 and the second separator 500, enhancing the overall structural sealing and preventing the liquid to be foamed from splashing into the interior and affecting the circuitry or gas passages. The venting cavity 250 formed by the foaming tube cap 600 and the internal structure allows the foaming gas to exit through the vent 610, ensuring thorough mixing of gas and liquid and improving the efficiency and quality of milk foam generation. During this process, the second separator 500 separates the temperature sensor 300 from the foaming gas, reducing the impact of the foaming gas on the temperature sensor 300. The spaced arrangement between the vent 610 and the temperature sensor 300 further prevents the foaming gas from directly impacting the sensor when exiting through the vent 610, reducing interference from the foaming gas temperature and ensuring accurate temperature detection.

[0042] Specifically, by setting the vent 610 on the arc transition structure of the foaming tube cap 600, while maintaining the distance from the temperature sensor 300, it is also relatively close to the end face of the foaming tube cap 600. When the foaming rod is inserted into the liquid to be foamed, the insertion depth of the vent 610 can be guaranteed, and the direction of the foaming gas will not directly contact the temperature sensor 300. This helps to ensure the foaming effect while reducing the impact on the detection accuracy of the temperature sensor 300.

[0043] In one specific embodiment of this utility model, a sealing groove 231 is provided on the partition 230, which extends in the circumferential direction along the first partition 200. A sealing ring is provided in the sealing groove 231, which abuts against the foaming tube 100 and the sealing groove 231. A sealing ring is provided between the first limiting part 410 and the first groove 211, which abuts against both of them. In this invention, the sealing groove 231 on the separator 230 cooperates with the sealing ring to enhance the sealing between the first separator 200 and the foaming tube 100, preventing leakage of the liquid to be foamed or the foaming gas at the gap between them. This reduces the risk of damage to the wires electrically connected to the temperature sensor 300, thus ensuring safe operation. By setting a sealing ring between the first limiting part 410 and the first groove 211, the sealing performance of the connection between the vent pipe 400 and the foaming channel 210 is further improved. This double-sealing design effectively blocks the gas leakage path, ensuring that the foaming gas can fully act on the liquid to be foamed, improving foaming efficiency. Simultaneously, it prevents external dust and liquid from entering the internal structure, extending the overall service life of the foaming rod and improving product reliability.

[0044] In one specific embodiment of this utility model, the foaming tube 100 has a three-section structure, including a smoothly connected starting section 110, a middle section 120, and a foaming section 130. The initial segment 110 extends vertically, the middle segment 120 extends horizontally, and the foaming segment 130 extends diagonally downward. A hanging ear 700 is provided at the transition between the middle section 120 and the foaming section 130.

[0045] In this invention, the foaming tube 100 has a three-section structure: the initial section 110 extends vertically, the middle section 120 extends horizontally, and the foaming section 130 extends diagonally downward. This design facilitates angle adjustment when the operator holds the foaming stick, allowing the foaming section 130 to more flexibly penetrate the liquid to be foamed in different containers, adapting to various usage scenarios. A hanging lug 700 is provided at the transition between the middle section 120 and the foaming section 130, making it convenient to hang and store the foaming stick after use, preventing contamination from contact with the table surface, saving storage space, and improving ease of use.

[0046] The working principle of the foaming system provided by this utility model is as follows: After assembling the foaming rod according to the structural settings, the wire enters the heat detection channel 220 through the wiring cavity 240 and is then electrically connected to the temperature sensor 300.

[0047] In use, the foaming tube 100 is inserted below the surface of the liquid to be foamed. Steam is generated by a water pump and a heating element, while air is introduced by an air pump. The steam and air mix and become the foaming gas, which is connected to the foaming rod through a pipe and a multi-way connector. During this process, a pressure sensor is installed at the detection tube connected to the foaming rod through the multi-way connector to obtain the pressure information of the steam and air in a timely manner, so as to adjust the operating conditions of the heating element and the air pump in conjunction with an external controller. The foaming gas then enters the foaming channel 210 of the first separator 200 through the vent pipe 400. After flowing through the first separator 200, it enters the venting chamber 250 through its side. During this process, the wire electrically connected to the temperature sensor 300 is always separated from the high-temperature foaming gas by the vent pipe 400 and the first separator 200 to ensure the service life of the wire. The first limiting part 410 and the first groove 211 are sealed together, and a sealing ring is provided between them. A sealing ring is also provided in the sealing groove 231 of the partition part 230 to ensure that the foaming gas does not leak from the venting chamber 250. The foaming gas is sprayed out through the air outlet 610 on the foaming tube cover 600.

[0048] The temperature sensor 300 abuts against the second groove 221 via its second limiting part 310. One end of the second separator 500 is also disposed within the second groove 221 and abuts against the second limiting part 310. The temperature sensor 300 is then fixed in place by a point-fitting connection between the second separator 500 and the foaming tube cap 600. During the foaming process, the foaming gas is always separated from the temperature sensor 300 by the first separator 200 and the second separator 500. The direction of the ejected gas flow is unlikely to contact the temperature sensor 300, which helps reduce detection errors and allows foaming to occur at a suitable temperature to achieve the desired foam effect.

[0049] After foaming is complete, turn off the heating element and air pump. The foaming gas will no longer be ejected. Then, hang the foaming rod through the 700 hanging ear for storage.

[0050] It should be understood that the application of this utility model is not limited to the examples above. Those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of this utility model.

Claims

1. A foaming system, characterized in that, It includes a water pump, a heating element, a multi-port connector, an air pump, and a foaming rod. The water pump, the heating element, and the foaming rod are connected in sequence through pipes, and the air pump is connected to the foaming rod through the multi-port connector.

2. The foaming system according to claim 1, characterized in that, The foaming system also includes a detection tube and a pressure sensor, with the pressure sensor located at the detection tube.

3. The foaming system according to claim 2, characterized in that, The foaming rod includes: Foaming tube (100), which is a tubular structure with open ends; A first partition (200) is disposed inside the foaming tube (100). The first partition (200) has a foaming channel (210) and a heat detection channel (220) that are not interconnected. Both the foaming channel (210) and the heat detection channel (220) are tubular structures with open ends. The inlet end of the foaming channel (210) is used to communicate with the foaming gas, and the outlet end of the foaming channel (210) is used to communicate with the liquid to be foamed. A temperature sensor (300), which is columnar in shape, is installed at the heat detection end of the heat detection channel (220) and extends out of the heat detection channel (220) to detect the temperature in contact with the liquid to be foamed.

4. The foaming system according to claim 3, characterized in that, The first separator (200) is provided with a partition portion (230) in the circumferential direction that abuts against the foam tube (100) for separating the foam tube (100). The first separator (200) forms a wiring cavity (240) with the foam tube (100) through one side of the separator (230) and the heat detection channel (220), which is used for the passage of the wires that are electrically connected to the temperature sensor (300); The first separator (200) forms a venting cavity (250) between the foaming tube (100) and the other side of the separator (230) for connecting the foaming channel (210) and the liquid to be foamed.

5. The foaming system according to claim 4, characterized in that, The inlet end of the foaming channel (210) extends to the side end of the first partition (200) away from the venting cavity (250), and the outlet end of the foaming channel (210) extends to the side of the first partition (200) and communicates with the venting cavity (250). The heat-sensing end of the heat-sensing channel (220) extends to the other end of the first partition (200), and the inlet end of the heat-sensing channel (220) extends to the side of the first partition (200) and communicates with the wiring cavity (240).

6. The foaming system according to claim 5, characterized in that, The inlet end of the foaming channel (210) is provided with a first groove (211). The foaming rod also includes: The vent pipe (400) is a tubular structure with open ends. One end of the vent pipe (400) is connected to the inlet end of the foaming channel (210). The vent pipe (400) is provided with a first limiting part (410) in the circumferential direction. The first limiting part (410) is disposed in the first groove (211) for sealing and cooperating with the first groove (211).

7. The foaming system according to claim 5, characterized in that, The heat-sensing end port of the heat-sensing channel (220) is provided with a second groove (221). The foaming rod also includes: The second separator (500) is a tubular structure with open ends, surrounding the end of the temperature sensor (300) and spaced apart from the end face of the temperature sensor (300). One end of the second separator (500) is connected to the heat-sensing end of the heat-sensing channel (220) through the second groove (221). The temperature sensor (300) is provided with a second limiting part (310) in the circumferential direction, which is disposed in the second groove (221). The two sides of the second limiting part (310) are used to abut against the bottom surface of the second separator (500) and the second groove (221).

8. The foaming system according to claim 7, characterized in that, The foaming rod also includes: The foam tube cap (600) is disposed outside the first partition (200) and the second partition (500), with one end connected to the opening of the foam tube (100) and the other end connected to the outer periphery of the second partition (500); The junction of the foam tube cap (600) and the second separator (500) extends in an arc shape toward the second separator (500), forming an arc transition structure. An air vent (610) is provided on the arc transition structure of the foam tube cap (600), and the air vent (610) is spaced apart from the temperature sensor (300).

9. The foaming system according to claim 6, characterized in that, A sealing groove (231) is provided on the partition (230), which extends in the direction of the first partition (200) circumferentially. A sealing ring is provided in the sealing groove (231) that abuts against the foam tube (100) and the sealing groove (231). A sealing ring is provided between the first limiting part (410) and the first groove (211), both of which abut against each other.

10. The foaming system according to claim 3, characterized in that, The foaming tube (100) has a three-section structure, including a smoothly connected starting section (110), a middle section (120), and a foaming section (130). The starting segment (110) extends vertically, the middle segment (120) extends horizontally, and the foaming segment (130) extends diagonally downward. A loop (700) is provided at the transition between the intermediate section (120) and the foaming section (130).

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