A device for making instant cold beverages

Abstract

The utility model relates to cold drink machine technical field, especially points to a kind of instant cold drink making device;Including cylinder and stirring subassembly, the stirring subassembly includes stirring head and passive wind wheel, stirring head is fixedly connected with passive wind wheel and rotatably arranged in cylinder;Air inlet pipe is equipped on the cylinder, airflow can be blown to passive wind wheel along air inlet pipe, to drive passive wind wheel and stirring head rotate in cylinder;Water inlet, feeding port, exhaust port and liquid outlet are equipped on the cylinder;The instant cold drink making device of the utility model, the stirring head in the cylinder is connected by linkage shaft with passive wind wheel, air inlet pipe blows into high-pressure airflow and drives passive wind wheel and stirring head rotate in cylinder, makes ingredient fast dissolution uniform, avoids the contact risk of water and electricity intermingling when beverage preparation, improves security.

Description

Technical Field

[0001] This utility model relates to the field of cold drink machine technology, and in particular to a device for making instant cold drinks. Background Technology

[0002] Currently, cold drinks sold in beverage shops are divided into two modes: pre-made and freshly made. Pre-made drinks involve mixing water, milk, sugar, and various flavoring ingredients, storing the mixture as a finished product in a beverage machine, and serving it directly to customers, such as cola and orange juice. This method makes it difficult to guarantee the freshness of the beverage and is not suitable for freshly squeezed drinks. Freshly made drinks, on the other hand, involve manually mixing water, milk, sugar, and various flavoring ingredients according to specific proportions, then using shaking and stirring to ensure even mixing, such as coffee and milk tea. This method is slower and suffers from uneven mixing and poor stability. Electric mixers are usually used to assist in mixing, accelerating the beverage preparation and improving the uniformity of the mixture.

[0003] Chinese patent CN215086676U discloses a handheld electric mixer that is easy to clean, comprising a main body, a heat dissipation vent on one side of the main body, a handle on the bottom surface of the main body near the heat dissipation vent, a switch at the middle position on the side of the main body away from the handle, a power cord at the bottom of the main body, a rotating shaft at the top of the side of the main body away from the heat dissipation vent, a first slot inside the rotating shaft, a connecting rod on the side of the rotating shaft away from the main body, a second slot on both ends of the connecting rod, a stirring rod on the side away from the connecting rod, a fixing plate fixedly installed at the bottom of the stirring rod, a stirring head installed on the side of the stirring rod away from the connecting rod, and a cleaning mechanism on the surface of the stirring head.

[0004] While existing handheld electric mixers can improve mixing efficiency and uniformity in beverage preparation, the presence of various mixing cups, ingredient containers, water sources, and milk sources on the work surface, the mixer's power cord can interfere with the operator, and the close contact between the electrical equipment and the beverage (water source) poses safety risks. Therefore, the existing technology requires further improvement and development. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings and deficiencies of existing technologies by providing a device for making instant cold drinks that is structurally sound, safe, and highly efficient.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: The present invention discloses an instant cold drink making device, comprising a cylinder and a stirring assembly. The stirring assembly includes a stirring head and a passive impeller. The stirring head and the passive impeller are fixedly connected and rotatably disposed within the cylinder. The cylinder is provided with an air inlet pipe, through which airflow can be blown towards the passive impeller, thereby driving the passive impeller and the stirring head to rotate within the cylinder. The cylinder is provided with a water inlet, a feeding inlet, an exhaust outlet, and a liquid outlet.

[0007] Understandably, the stirring head and passive impeller are centrally positioned within the cylinder to prevent interference between their rotation and the cylinder. The stirring head and passive impeller can be mounted within the cylinder using a rotating mechanism, which can employ existing conventional technology, detailed later. The rotating mechanism only needs to ensure the rotational flexibility of the stirring head and passive impeller, and maintain a fixed insertion depth (height) within the cylinder, allowing the stirring head to agitate the liquid in the lower cavity of the cylinder and ensuring that the airflow from the intake pipe directly impacts the passive impeller.

[0008] The stirring head is located in the lower part of the cylinder's inner cavity and close to the bottom plate of the cylinder, so that the stirring head can participate in stirring even when the liquid level in the cylinder is low. Correspondingly, the passive impeller does not participate in stirring, but only serves as a power receiving component. Therefore, the passive impeller is located in the upper part of the cylinder's inner cavity, and the air inlet pipe is connected to an air source (air pump). High-pressure airflow enters the cylinder through the air inlet pipe, blowing the passive impeller to drive the stirring head to rotate in the cylinder. Of course, the cylinder has an exhaust port to allow the air pressure to be discharged.

[0009] Preferably, the upper end of the cylinder is open, and the opening of the cylinder can serve as a feeding port and an exhaust port, with a pipe extending into the opening of the cylinder as a water inlet.

[0010] Specifically, the ingredients for making beverages generally include solid or powdered components (flavorings such as coffee, tea, and sugar) as well as water and milk. The feeding port is used to connect to a powder box (containing multiple components and capable of automatic quantitative dispensing), which feeds the ingredients into the container through the feeding port. The water inlet is used to connect to a water source, and hot water is introduced into the container through the water inlet. The air source is activated to blow the passive impeller, which drives the stirring head to rotate, allowing the ingredients to dissolve quickly in the hot water.

[0011] In this invention, the passive impeller is driven by an air source. After the high-pressure airflow enters the cylinder, it is discharged from the exhaust port. While driving the passive impeller and the stirring head, the airflow can remove the temperature inside the cylinder, allowing the ingredients to dissolve quickly and be cooled at the same time.

[0012] Then, cold water (ice water) is introduced into the tank through the inlet and mixed to prepare a cold drink at a suitable temperature. The finished cold drink flows out from the outlet.

[0013] According to the above scheme, the stirring head and the passive impeller are fixedly connected by a linkage shaft. As mentioned above, the stirring head is located in the lower part of the cylinder cavity and close to the bottom plate of the cylinder, so that the stirring head can participate in stirring even if the liquid level in the cylinder is low. The passive impeller does not participate in stirring and only serves as a power receiving component. Therefore, the passive impeller is located in the upper part of the cylinder cavity and is connected to the stirring head below through a linkage shaft, thereby achieving integrated linkage.

[0014] According to the above scheme, the stirring assembly also includes a support frame, which is disposed inside the cylinder and fixedly connected to the cylinder. A linkage shaft or passive impeller is rotatably connected to the support frame. The stirring head is rotatably disposed at the bottom of the cylinder and connected to the lower end of the linkage shaft. The passive impeller is rotatably disposed at the upper part of the cylinder and connected to the upper end of the linkage shaft. The support frame is used to install the stirring head, passive impeller, and linkage shaft inside the cylinder. Specifically, this invention is used for preparing cold drinks, with the aim of rapid preparation. The cylinder can be made of metal (no insulation required), and the support frame is welded to the inner wall of the cylinder. After the stirring head, passive impeller, and linkage shaft are assembled as a single unit and rotatably connected to the support frame, the stirring head is positioned in the lower part of the cylinder cavity and close to the bottom plate of the cylinder, while the passive impeller is positioned in the upper part of the cylinder cavity. Conventionally, the linkage shaft or passive impeller is simply rotatably connected to the support frame.

[0015] According to the above scheme, the bracket has a central hole, and a secondary shaft is provided between the bracket and the passive impeller. The lower end of the secondary shaft has a shaft head, and a step is formed between the shaft head and the secondary shaft. The shaft head is rotatably inserted through the central hole and is fixedly connected to the upper end of the linkage shaft. The passive impeller is fixedly connected to the upper end of the secondary shaft. The shaft head at the lower end of the secondary shaft is connected to the linkage shaft, and the shaft head is rotatably inserted through the central hole. The step between the shaft head and the secondary shaft contacts the bracket to form a vertical limit, thereby suspending the stirring head and the passive impeller in the cylinder and allowing them to rotate freely.

[0016] According to the above scheme, the linkage shaft is a hexagonal shaft, and both the stirring head and the shaft head are provided with hexagonal inner holes. The two ends of the linkage shaft are respectively embedded in the corresponding hexagonal inner holes, thereby fixing the linkage shaft to the stirring head and the shaft head. The passive impeller is fixed to the secondary shaft with screws. Furthermore, the linkage shaft is a hexagonal shaft, which is interference-fitted with the hexagonal inner holes on the stirring head and the shaft head, so that the linkage shaft fixes the stirring head and the passive impeller and can rotate synchronously.

[0017] According to the above scheme, the stirring head includes a central column and several stirring arms. The central column has a hexagonal inner hole. The stirring arms are arranged at equal angular intervals around the central column, and one end of each stirring arm is fixedly connected to the central column. Each stirring arm has at least one turbulence-inducing terminal. The stirring arms are arranged radially along the inner cavity of the cylinder, forming a star-shaped structure around the central column. There can be a height difference between the stirring arms, and the stirring arms can also have an angle with the bottom plate of the cylinder to improve stirring efficiency. Preferably, at least one turbulence-inducing terminal is radially distributed on the stirring arm, which can further promote stirring efficiency and allow the ingredients to dissolve more quickly.

[0018] According to the above scheme, the passive impeller includes a bushing and several pot-lid fan blades. The bushing is fixedly connected to the secondary shaft by screws. The pot-lid fan blades are arranged at equal angular intervals around the bushing, and are fixedly connected to the bushing by connecting rods. The rotation trajectory of the center of the windward side of the pot-lid fan blades is tangent to the air intake direction of the intake pipe. It can be understood that when the air intake pipe controls the airflow into the cylinder, it has directionality and linearity. The pot-lid fan blades are hemispherical shells, so they can receive the kinetic energy of the airflow blown out of the intake pipe, while avoiding reducing air resistance and improving transmission efficiency.

[0019] According to the above scheme, the upper end of the cylinder is open, and a cylinder cover is provided on the upper port of the cylinder. The water inlet, feeding port, and exhaust port are located on the cylinder cover, and the liquid outlet is located on the bottom plate of the cylinder. As mentioned above, the upper end of the cylinder is open, allowing the stirring head, support, and passive impeller to be assembled inside the cylinder. Furthermore, the cylinder cover on the upper port of the cylinder prevents dust from entering the cylinder and facilitates the installation of the water inlet, feeding port, exhaust port, and other components and wiring. For example, a temperature control sensor can be installed inside the cylinder, with the wiring leading out from the cylinder cover.

[0020] According to the above scheme, the water inlet is connected to a switching valve via a pipeline, and the switching valve is connected to a hot water source and a cold water source via a pipeline. The water inlet is connected to the water source via the switching valve. During the ingredient dissolution process, the water inlet is connected to the hot water source; during the mixing process, the water inlet is connected to the cold water source to quickly prepare cold drinks.

[0021] According to the above scheme, this utility model also includes a temperature compensation structure, which includes a coil that is coiled and fixed to the outer wall of the cylinder. During beverage preparation, the ingredients need to be fully cooled in hot water. Even if cold water is subsequently added to the cylinder to lower the temperature, the beverage temperature inside the cylinder will still be higher than room temperature. Therefore, this utility model preferably provides a coil on the outer wall of the cylinder. The coil can be connected to cold water or a refrigerant to rapidly cool the beverage inside the cylinder, resulting in a chilled drink that is below room temperature or close to frozen.

[0022] This invention relates to an instant cold drink making device. The stirring head inside the cylinder is connected to the passive impeller via a linkage shaft. High-pressure airflow is blown in through the air inlet pipe to drive the passive impeller and stirring head to rotate inside the cylinder, so that the ingredients are quickly and evenly dissolved, avoiding the risk of water and electricity mixing during beverage preparation and improving safety. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the overall exploded structure of this utility model; Figure 3 This is a schematic diagram of the internal structure of the cylinder of this utility model.

[0024] In the picture: 1. Cylinder body; 2. Stirring head; 3. Passive impeller; 4. Linkage shaft; 11. Air inlet pipe; 12. Water inlet; 13. Feeding port; 14. Exhaust port; 15. Liquid outlet; 16. Cylinder cover; 17. Coil; 21. Central column; 22. Stirring arm; 23. Turbulence terminal; 31. Sub-shaft; 32. Shaft head; 33. Shaft sleeve; 34. Pot lid fan blade; 41. Support; 42. Center hole; 43. Hexagonal inner hole. Detailed Implementation

[0025] The technical solution of this utility model will be described below with reference to the accompanying drawings and embodiments.

[0026] like Figure 1-3 As shown, the instant cold drink making device of this utility model includes a cylinder body 1 and a stirring assembly. The stirring assembly includes a stirring head 2 and a passive impeller 3. The stirring head 2 and the passive impeller 3 are fixedly connected and rotatably disposed inside the cylinder body 1. The cylinder body 1 is provided with an air inlet pipe 11, and the airflow can be blown along the air inlet pipe 11 to the passive impeller 3, thereby driving the passive impeller 3 and the stirring head 2 to rotate inside the cylinder body 1. The cylinder body 1 is provided with a water inlet 12, a feeding port 13, an exhaust port 14, and a liquid outlet 15.

[0027] It is understood that the stirring head 2 and the passive impeller 3 are centrally located within the cylinder 1, ensuring that their rotation does not interfere with the cylinder 1. The stirring head 2 and the passive impeller 3 can be mounted within the cylinder 1 via a rotating mechanism, which can employ existing conventional technology, detailed later. The rotating mechanism only needs to ensure the rotational flexibility of the stirring head 2 and the passive impeller 3, and a fixed insertion depth (height) within the cylinder 1, allowing the stirring head 2 to agitate the liquid in the lower inner cavity of the cylinder 1, and ensuring that the airflow from the air inlet pipe 11 directly blows onto the passive impeller 3.

[0028] The stirring head 2 is located at the lower part of the inner cavity of the cylinder 1 and close to the bottom plate of the cylinder 1. Even if the liquid level in the cylinder 1 is low, the stirring head 2 can still participate in stirring. Correspondingly, the passive impeller 3 does not participate in stirring, but only serves as a power receiving component. Therefore, the passive impeller 3 is located at the upper part of the inner cavity of the cylinder 1. The air inlet pipe 11 is connected to an air source (air pump). High-pressure airflow enters the cylinder 1 through the air inlet pipe 11, blowing the passive impeller 3 to drive the stirring head 2 to rotate inside the cylinder 1. Of course, the cylinder 1 has an exhaust port 14 to allow the air pressure to be discharged.

[0029] Preferably, the upper end of the cylinder body 1 is open, and the opening of the cylinder body 1 can serve as a feeding port 13 and an exhaust port 14, and a pipe fitting extending into the opening of the cylinder body 1 serves as a water inlet 12.

[0030] Specifically, the ingredients for making beverages generally include solid or powdered components (flavorings such as coffee, tea, and sugar) as well as water and milk. The feeding port 13 is used to connect to a powder box (containing multiple components and capable of automatic quantitative dispensing). The powder box feeds the ingredients into the tank 1 through the feeding port 13. The water inlet 12 is used to connect to a water source. Hot water is introduced into the tank 1 through the water inlet 12. The air source is activated to blow the passive fan wheel 3, which drives the stirring head 2 to rotate, allowing the ingredients to dissolve quickly in the hot water.

[0031] In this invention, the passive impeller 3 is driven by an air source. After the high-pressure airflow enters the cylinder 1, it is discharged from the exhaust port 14. While driving the passive impeller 3 and the stirring head 2, the airflow can remove the temperature inside the cylinder 1, so that the ingredients can be cooled while being quickly dissolved.

[0032] Then, cold water (ice water) is introduced into the cylinder 1 through the inlet 12 and mixed to prepare a cold drink at a suitable temperature. The finished cold drink flows out from the outlet 15.

[0033] The stirring head 2 and the passive impeller 3 are fixedly connected by a linkage shaft 4. As mentioned above, the stirring head 2 is located in the lower part of the inner cavity of the cylinder 1 and close to the bottom plate of the cylinder 1. Even if the liquid level in the cylinder 1 is low, the stirring head 2 can still participate in stirring. The passive impeller 3 does not participate in stirring and only serves as a power receiving component. Therefore, the passive impeller 3 is located in the upper part of the inner cavity of the cylinder 1. The passive impeller 3 is connected to the stirring head 2 below through the linkage shaft 4, thereby achieving integrated linkage.

[0034] The stirring assembly also includes a support 41, which is disposed inside and fixedly connected to the cylinder 1. A linkage shaft 4 or a passive impeller 3 is rotatably connected to the support 41, allowing the stirring head 2 to be rotatably positioned at the bottom of the cylinder 1 and connected to the lower end of the linkage shaft 4. The passive impeller 3 is rotatably positioned at the upper part of the cylinder 1 and connected to the upper end of the linkage shaft 4. The support 41 is used to install the stirring head 2, the passive impeller 3, and the linkage shaft 4 inside the cylinder 1. Specifically, this invention is used for preparing cold drinks, aiming for rapid preparation. The cylinder 1 can be made of metal (no insulation required), and the support 41 is welded to the inner wall of the cylinder 1. After the stirring head 2, the passive impeller 3, and the linkage shaft 4 are assembled as a single unit and rotatably connected to the support 41, the stirring head 2 is positioned at the lower part of the inner cavity of the cylinder 1 and close to the bottom plate of the cylinder 1, while the passive impeller 3 is positioned at the upper part of the inner cavity of the cylinder 1. Conventionally, the linkage shaft 4 or the passive impeller 3 is simply rotatably connected to the support 41.

[0035] The bracket 41 has a central hole 42. A secondary shaft 31 is provided between the bracket 41 and the passive impeller 3. The lower end of the secondary shaft 31 has a shaft head 32, and a step is formed between the shaft head 32 and the secondary shaft 31. The shaft head 32 is rotatably inserted through the central hole 42 and is fixedly connected to the upper end of the linkage shaft 4. The passive impeller 3 is fixedly connected to the upper end of the secondary shaft 31. The shaft head 32 at the lower end of the secondary shaft 31 is connected to the linkage shaft 4. The shaft head 32 is rotatably inserted through the central hole 42. The step between the shaft head 32 and the secondary shaft 31 touches the bracket 41 to form a vertical limit, thereby suspending the stirring head 2 and the passive impeller 3 in the cylinder 1 and allowing them to rotate freely.

[0036] The linkage shaft 4 is a hexagonal shaft. Both the stirring head 2 and the shaft head 32 are provided with hexagonal inner holes 43. The two ends of the linkage shaft 4 are respectively embedded in the corresponding hexagonal inner holes 43, thereby fixing the linkage shaft 4 to the stirring head 2 and the shaft head 32. The passive impeller 3 is fixed to the auxiliary shaft 31 with screws. Furthermore, the linkage shaft 4 is a hexagonal shaft, which is interference-fitted with the hexagonal inner holes 43 on the stirring head 2 and the shaft head 32, so that the linkage shaft 4 fixes the stirring head 2 and the passive impeller 3 and can rotate synchronously.

[0037] The stirring head 2 includes a central column 21 and several stirring arms 22. The central column 21 has a hexagonal inner hole 43. The stirring arms 22 are arranged at equal angles around the central column 21, and one end of each stirring arm 22 is fixedly connected to the central column 21. Each stirring arm 22 has at least one turbulence-inducing terminal 23. The stirring arms 22 are arranged radially along the inner cavity of the cylinder 1, forming a star-shaped structure around the central column 21. There can be a height difference between the stirring arms 22, and the stirring arms 22 can also have an angle with the bottom plate of the cylinder 1 to improve stirring efficiency. Preferably, at least one turbulence-inducing terminal 23 is radially distributed on the stirring arm 22. The turbulence-inducing terminal 23 can further promote stirring efficiency and make the ingredients dissolve faster.

[0038] The passive impeller 3 includes a bushing 33 and several pot-lid fan blades 34. The bushing 33 is fixedly connected to the secondary shaft 31 by screws. The several pot-lid fan blades 34 are arranged at equal angular intervals around the bushing 33, and the pot-lid fan blades 34 are fixedly connected to the bushing 33 by connecting rods. The rotation trajectory of the center of the windward surface of the pot-lid fan blades 34 is tangent to the air intake direction of the air intake pipe 11. It can be understood that when the air intake pipe 11 controls the airflow into the cylinder 1, it has directional and linear characteristics. The pot-lid fan blades 34 are hemispherical shells, so the pot-lid fan blades 34 can receive the kinetic energy of the airflow blown out of the air intake pipe 11, and avoid reducing air resistance, thereby improving transmission efficiency.

[0039] The upper end of the cylinder body 1 is open, and a cylinder cover 16 is provided on the upper port of the cylinder body 1. The water inlet 12, the feeding port 13, and the exhaust port 14 are provided on the cylinder cover 16, and the liquid outlet 15 is provided on the bottom plate of the cylinder body 1. As mentioned above, the upper end of the cylinder body 1 is open, so that the stirring head 2, the bracket 41, and the passive impeller 3 can be assembled inside the cylinder body 1. Furthermore, the cylinder cover 16 is provided on the upper port of the cylinder body 1 to prevent dust from entering the cylinder body 1, and also to facilitate the installation of the water inlet 12, the feeding port 13, the exhaust port 14, and other components and wiring. For example, a temperature control sensor can be installed inside the cylinder body 1, and the wiring is led out from the cylinder cover 16.

[0040] The water inlet 12 is connected to a switching valve via a pipeline, and the switching valve is connected to a hot water source and a cold water source via a pipeline. The water inlet 12 is connected to the water source via the switching valve. During the ingredient dissolution process, the water inlet pipe is connected to the hot water source, and during the mixing process, the water inlet pipe is connected to the cold water source to quickly prepare cold drinks.

[0041] This invention also includes a temperature compensation structure, which includes a coil 17 coiled and fixed to the outer wall of the cylinder 1. During the beverage preparation process, the ingredients need to be fully cooled in hot water. Even if cold water is subsequently added to the cylinder 1 to lower the temperature, the beverage temperature inside the cylinder 1 will still be higher than room temperature. Therefore, this invention preferably provides a coil 17 on the outer wall of the cylinder 1. The coil 17 can be connected to cold water or a refrigerant to rapidly cool the beverage inside the cylinder 1, resulting in a chilled drink that is below room temperature or close to frozen.

[0042] The above description is only a preferred embodiment of the present utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the claims of the present utility model patent application are included in the scope of the present utility model patent application.

Claims

1. A device for making instant cold drinks, comprising a cylinder (1) and a stirring assembly, characterized in that, The stirring assembly includes a stirring head (2) and a passive impeller (3). The stirring head (2) is fixedly connected to the passive impeller (3) and is rotatably disposed inside the cylinder (1). The cylinder (1) is provided with an air inlet pipe (11), and the airflow can be blown along the air inlet pipe (11) to the passive impeller (3), thereby driving the passive impeller (3) and the stirring head (2) to rotate inside the cylinder (1); The cylinder (1) is provided with a water inlet (12), a feeding port (13), an exhaust port (14) and a liquid outlet (15).

2. The instant cold drink making apparatus according to claim 1, characterized in that, The stirring head (2) and the passive impeller (3) are fixedly connected by a linkage shaft (4).

3. The instant cold drink making apparatus according to claim 2, characterized in that, The stirring assembly also includes a bracket (41), which is set inside the cylinder (1) and fixedly connected to the cylinder (1). The linkage shaft (4) or passive impeller (3) is rotatably connected to the bracket (41). The stirring head (2) is rotatably set at the bottom of the cylinder (1) and connected to the lower end of the linkage shaft (4). The passive impeller (3) is rotatably set at the upper part of the cylinder (1) and connected to the upper end of the linkage shaft (4).

4. The instant cold drink making apparatus according to claim 3, characterized in that, The bracket (41) is provided with a central hole (42), and a secondary shaft (31) is provided between the bracket (41) and the passive impeller (3). The lower end of the secondary shaft (31) is provided with a shaft head (32), and a step is formed between the shaft head (32) and the secondary shaft (31). The shaft head (32) is rotatably inserted through the central hole (42), and the shaft head (32) is fixedly connected to the upper end of the linkage shaft (4). The passive impeller (3) is fixedly connected to the upper end of the secondary shaft (31).

5. The instant cold drink making apparatus according to claim 4, characterized in that, The linkage shaft (4) is a hexagonal shaft. Both the stirring head (2) and the shaft head (32) are provided with hexagonal inner holes (43). The two ends of the linkage shaft (4) are respectively embedded in the corresponding hexagonal inner holes (43), so that the linkage shaft (4) is fixedly connected to the stirring head (2) and the shaft head (32).

6. The instant cold drink making apparatus according to any one of claims 1-5, characterized in that, The stirring head (2) includes a central column (21) and a plurality of stirring arms (22). The central column (21) is provided with a hexagonal inner hole (43). The plurality of stirring arms (22) are arranged at equal angular intervals around the central column (21), and one end of the stirring arm (22) is fixedly connected to the central column (21). At least one turbulence terminal (23) is provided on the stirring arm (22).

7. The instant cold drink making apparatus according to any one of claims 1-4, characterized in that, The passive impeller (3) includes a bushing (33) and several pot-lid fan blades (34). The bushing (33) is fixedly connected to the secondary shaft (31) by screws. Several pot-lid fan blades (34) are arranged at equal angles around the bushing (33). The pot-lid fan blades (34) are fixedly connected to the bushing (33) by connecting rods. The rotation trajectory of the center of the windward side of the pot-lid fan blades (34) is tangent to the air intake direction of the air intake pipe (11).

8. The instant cold drink making apparatus according to claim 1, characterized in that, The upper end of the cylinder (1) is open, and a cylinder cover (16) is provided on the upper port of the cylinder (1). The water inlet (12), feeding port (13) and exhaust port (14) are provided on the cylinder cover (16), and the liquid outlet (15) is provided on the bottom plate of the cylinder (1).

9. The instant cold drink making apparatus according to claim 8, characterized in that, The inlet (12) is connected to a switching valve via a pipeline, and the switching valve is connected to a hot water source and a cold water source via a pipeline.

10. The instant cold drink making apparatus according to claim 1, characterized in that, It also includes a temperature compensation structure, which includes a coil (17) that is coiled and fixed on the outer wall of the cylinder (1).

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