Stirring system and cold drink machine

By designing ice-breaking protrusions and avoidance recesses in the mixing system of the beverage maker, the problem of ice outlet blockage is solved, enabling efficient delivery of smoothies or ice cream, and improving the cleanliness and efficiency of the refrigeration system.

CN223787491UActive Publication Date: 2026-01-13ZHONGSHAN DONLIM WEILI ELECTRICAL APPLIANCES CO LTD
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Patent Information

Application Number
CN202520201686.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-08
Publication Date
2026-01-13
Estimated Expiration
2035-02-08

AI Technical Summary

Technical Problem

The existing mixing system of cold drink machines tends to form large ice blocks at the ice outlet, causing blockage and affecting the delivery efficiency of smoothies or ice cream.

Method used

Design a mixing system including a feeding cylinder and an internal mixing component. A preset gap is formed between the ice outlet end face and the ice outlet surface. The ice outlet end face and the ice outlet surface are respectively provided with a first ice-breaking protrusion and an avoidance depression. The ice block is broken by the rotation of the mixing component and pushed back into the feeding cylinder to avoid blockage.

Benefits of technology

It effectively breaks up ice at the ice outlet, ensuring the efficient delivery of shaved ice or ice cream, and removes dirt by scraping the inner walls of the evaporator and mixing cylinder, thereby improving refrigeration efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of ice making equipment, in particular to a stirring system and a cold drink machine. The stirring system comprises a material making barrel and a stirring piece arranged in the material making barrel, the material making barrel is provided with an ice outlet face, an ice outlet is formed in the ice outlet face, an ice outlet end face is formed at the end, facing the ice outlet face, of the stirring piece, and a preset gap is formed between the ice outlet end face and the ice outlet face. A first ice breaking protrusion is formed on one of the ice outlet end face and the ice outlet face, an avoiding concave part is formed in the other one of the ice outlet end face and the ice outlet face, and an ice breaking space is formed between the first ice breaking protrusion and the avoiding concave part so as to break ice blocks at the ice outlet. By the adoption of the ice outlet device, ice blocks blocked at the ice outlet can be damaged, the problem that the ice outlet is blocked is avoided, and the conveying efficiency of smoothie or ice cream is guaranteed.
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Description

Technical Field

[0001] This utility model relates to the field of refrigeration equipment technology, and in particular to a stirring system and a cold drink machine. Background Technology

[0002] As a highly efficient, convenient, and multifunctional beverage making device, beverage coolers are widely used in various catering establishments and home kitchens. Existing beverage coolers mainly consist of a refrigeration system and a stirring system. The stirring system includes a mixing drum, an evaporator located inside the mixing drum, and a stirring paddle connected to the evaporator. When the beverage cooler is working, the refrigeration system delivers cooled refrigerant to the evaporator to cool the ice-making ingredients inside the mixing drum, turning them into slushies or ice cream. The stirring paddle then transports the slushies or ice cream to the outside of the mixing drum for the user to enjoy.

[0003] During the long-term operation of the cold drink machine, because the stirring paddle cannot stir the ice outlet, large ice blocks are easily formed at the ice outlet of the mixing cylinder, causing blockage and affecting the delivery of shaved ice or ice cream. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a stirring system and a beverage cooler that can break up ice blocks blocking the ice outlet, preventing blockages and ensuring efficient delivery of smoothies or ice cream.

[0005] To solve the above-mentioned technical problems, this utility model provides a stirring system, including a material preparation cylinder and a stirring component disposed inside the material preparation cylinder. The material preparation cylinder is provided with an ice outlet surface, and the ice outlet surface forms an ice outlet. The end of the stirring component facing the ice outlet surface forms an ice outlet end face, and a preset gap is formed between the ice outlet end face and the ice outlet surface.

[0006] One of the ice-exit end face and the ice-exit surface has a first ice-breaking protrusion, and the other has an avoidance recess. An ice-breaking space is formed between the first ice-breaking protrusion and the avoidance recess to break the ice at the ice outlet.

[0007] As an improvement to the above solution, the first ice-breaking protrusion is formed on the ice-exit end face, the ice-exit port is formed at the lower end of the ice-exit surface, and the ice-exit port is formed with a plurality of partition rods, and the avoidance recess is formed between two adjacent partition rods or between the partition rods and the ice-exit surface.

[0008] As an improvement to the above solution, the separator bar has a plurality of second ice-breaking protrusions on the side facing the ice-breaking end face, and when the first ice-breaking protrusion moves to the ice-breaking space, the second ice-breaking protrusions are misaligned with the first ice-breaking protrusion.

[0009] As an improvement to the above solution, multiple first ice-breaking protrusions form a sawtooth shape on the ice-exit end face, and each first ice-breaking protrusion transitions to the ice-exit end face with a circular arc.

[0010] As an improvement to the above solution, the end of the stirring element away from the ice outlet extends spirally in a predetermined direction, and the stirring element is sleeved on the evaporator, the predetermined direction being the length direction of the material preparation cylinder; the stirring element is formed with multiple stirring scrapers.

[0011] The material preparation cylinder is equipped with an evaporator, the stirring element is installed on the outer surface of the evaporator, and the inner side of the stirring scraper is in contact with the outer surface of the evaporator.

[0012] Alternatively, an evaporator may be provided outside the material preparation cylinder, the stirring element may be installed inside the material preparation cylinder, and the outer side of the stirring scraper may be in contact with the inner wall of the material preparation cylinder.

[0013] As an improvement to the above solution, the stirring scraper column is formed with a scraping section, and the thickness of the scraping section gradually decreases along the rotation direction of the stirring element;

[0014] The bottom surface of the scraping part is flush with the inner side surface of the stirring scraper; or the bottom surface of the scraping part is flush with the outer side surface of the stirring scraper.

[0015] As an improvement to the above solution, the inner side of the stirring element is provided with a number of third ice-breaking protrusions at intervals, and the top of each of the third ice-breaking protrusions is in contact with the outer surface of the evaporator.

[0016] As an improvement to the above solution, the third ice-breaking protrusion is connected to the inner side of the stirring component by an arc, and the top surface of the third ice-breaking protrusion is an arc surface.

[0017] As an improvement to the above solution, a first gap is formed between the outer edge of the stirring component and the inner wall of the material preparation cylinder, and the first gap is 1.5mm-6mm.

[0018] A second gap is formed between the outer edge of the stirring component and the inner wall of the material preparation cylinder, the second gap being 1.5mm-4mm;

[0019] A third gap is formed between the outer edge of the stirring component and the inner top wall of the material preparation cylinder, and the third gap is 2mm-38mm.

[0020] Accordingly, this utility model also provides a cold drink machine, including a shell, a refrigeration system and a stirring system as described in any one of the above, wherein the refrigeration system and the stirring system are both disposed inside the shell.

[0021] Implementing this utility model has the following beneficial effects:

[0022] According to the mixing system of this embodiment, the mixing component can rotate inside the mixing cylinder, conveying the slush or ice cream made inside the mixing cylinder to the outside of the mixing cylinder through the ice outlet. During the rotation of the mixing component, through the cooperation of the first ice-breaking protrusion and the avoidance recess, the mixing component can stir the ice-breaking space between the first ice-breaking protrusion and the avoidance recess, thereby physically breaking up the ice block blocking the ice outlet. Under the action of the mixing component, the broken ice block is pushed back into the mixing cylinder, avoiding blockage at the ice outlet and ensuring the conveying efficiency of the slush or ice cream. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the stirring system in one embodiment of the present invention;

[0024] Figure 2 This is a side cross-sectional view of the stirring system in one embodiment of the present invention;

[0025] Figure 3 This is a schematic diagram showing the positional relationship between the stirring element and the ice outlet in one embodiment of this utility model;

[0026] Figure 4 yes Figure 2 Enlarged structural diagram at point A;

[0027] Figure 5 This is a side view of the stirring component in one embodiment of the present invention;

[0028] Figure 6 This is a rear cross-sectional view of the stirring system of a cold drink machine in one embodiment of the present invention;

[0029] Figure 7 yes Figure 6 A magnified structural diagram at point B in the middle. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of this utility model clearer, the following will describe this utility model in further detail with reference to the accompanying drawings. It is hereby declared that the terms "up," "down," "left," "right," "front," "back," "inner," and "outer," etc., appearing or about to appear in this document, are based solely on the accompanying drawings and are not intended to specifically limit this utility model.

[0031] The stirring system of this invention can break up the ice blockage at the ice outlet 21, avoid blockage at the ice outlet 21, and ensure the conveying efficiency of shaved ice or ice cream.

[0032] In embodiments of this utility model, such as Figures 1 to 7As shown, the mixing system includes a feeding cylinder 2 and a mixing element 1 disposed inside the feeding cylinder 2. The feeding cylinder 2 is provided with an ice outlet surface 22, and the ice outlet surface 22 forms an ice outlet 21. The end of the mixing element 1 facing the ice outlet surface 22 forms an ice outlet end face 11, and a preset gap is formed between the ice outlet end face 11 and the ice outlet surface 22. One of the ice outlet end face 11 and the ice outlet surface 22 forms a first ice-breaking protrusion 14, and the other forms a relief depression 23. An ice-breaking space is formed between the first ice-breaking protrusion 14 and the relief depression 23, so as to use the first ice-breaking protrusion 14 to break the ice block at the ice outlet 21.

[0033] According to the stirring system of this embodiment, the stirring component 1 can rotate inside the mixing cylinder 2, conveying the slush or ice cream made inside the mixing cylinder 2 to the outside of the mixing cylinder 2 through the ice outlet 21. During the rotation of the stirring component 1, through the cooperation of the first ice-breaking protrusion 14 and the avoidance recess 23, the stirring component 1 can stir the ice-breaking space between the first ice-breaking protrusion 14 and the avoidance recess 23, thereby physically breaking the ice block blocking the ice outlet 21. Under the action of the stirring component 1, the broken ice block is pushed back into the mixing cylinder 2, avoiding the blockage problem at the ice outlet 21 and ensuring the conveying efficiency of the slush or ice cream.

[0034] In one alternative embodiment, such as Figures 2 to 4 As shown, the first ice-breaking protrusion 14 is formed on the ice outlet end face 11, and the ice outlet 21 is formed at the lower end of the ice outlet surface 22. The ice outlet 21 is formed with a plurality of partition rods 24. An avoidance recess 23 is formed between two adjacent partition rods 24 or between the partition rods 24 and the ice outlet surface 22, so that the first ice-breaking protrusion 14 can move with the rotation of the stirring member 1, and the stirring member 1 provides ice-breaking force to the first ice-breaking protrusion 14, thereby ensuring the breaking effect of the first ice-breaking protrusion 14 on the ice block or ice layer accumulated at the ice outlet 21.

[0035] Of course, in other alternative embodiments, the first ice-breaking protrusion 14 may also be formed inside the ice outlet 21 of the ice outlet surface 22. The first ice-breaking protrusion 14 protrudes into the ice outlet surface 22 and avoids the recess 23 formed on the ice outlet end face 11 of the stirring member 1. By changing the fluid flow direction at the ice outlet through the first ice-breaking protrusion 14, ice blocks or ice layers can be avoided from accumulating at the ice outlet 21.

[0036] Furthermore, to further enhance the destructive effect on ice blocks or ice layers at the 21 ice outlets, such as... Figure 3 and Figure 4As shown, the separator 24 has several second ice-breaking protrusions 25 on the side facing the ice outlet end face 11. When the first ice-breaking protrusion 14 moves into the ice-breaking space, the second ice-breaking protrusions 25 are staggered with the first ice-breaking protrusion 14. When the ice blocks broken in the ice-breaking space are driven back into the material preparation cylinder 2 by the first ice-breaking protrusion 14, the fluid flowing back from the second ice-breaking protrusions 25 can be used to interfere and further break the ice blocks. Thus, by cooperating with the first ice-breaking protrusion 14, the size of the ice blocks can be further reduced, thereby improving the ice-breaking effect.

[0037] In one embodiment, such as Figure 3 and Figure 4 As shown, multiple first ice-breaking protrusions 14 form a serrated shape on the ice outlet face 11, and each first ice-breaking protrusion 14 transitions to the ice outlet face 11 with a rounded arc to improve the stirring effect of the first ice-breaking protrusions 14 on the ice slush or ice cream at the ice outlet 21, ensuring that the first ice-breaking protrusions 14 can be used to physically break the ice at the ice outlet 21. At the same time, a streamlined arc surface can be formed between the first ice-breaking protrusions 14 and the end of the stirring component 1 to ensure that the first ice-breaking protrusions 14 can adapt to the fluid dynamics of the ice slush or ice cream and reduce the fluid resistance experienced by the stirring component 1.

[0038] It should be noted that the cross-section of the serrations formed by the multiple first ice-breaking protrusions 14 can be a regular polygonal shape such as a triangle or a square, or an irregular shape with gradient lines; no specific limitation is made here.

[0039] In addition, besides forming a serrated shape, the multiple first ice-breaking protrusions 14 can also form an integral sharp corner or other protrusion shape at the end of the stirring member 1, which can be selected according to actual design needs.

[0040] It should be noted that, as Figure 2 , Figure 5 and Figure 6 As shown, the stirring system typically includes an evaporator 3, which can be located either inside or outside the mixing cylinder 2. The evaporator 3 exchanges heat with the ice-making ingredients inside the mixing cylinder 2 to produce slushies or ice cream. However, during the operation of the beverage cooler, various dirt, frost, or deposits may accumulate on the heat exchange surface between the evaporator 3 and the ice-making ingredients in the mixing cylinder 2, hindering the heat exchange process between the refrigerant inside the evaporator 3 and the ice-making ingredients, thus reducing the cooling efficiency of the beverage cooler. Specifically, when the evaporator 3 is located inside the mixing cylinder 2, the heat exchange surface between the evaporator 3 and the ice-making ingredients in the mixing cylinder 2 is the outer surface of the evaporator 3; when the evaporator 3 is located outside the mixing cylinder 2, the heat exchange surface between the evaporator 3 and the ice-making ingredients in the mixing cylinder 2 is the inner wall surface of the mixing cylinder.

[0041] In this embodiment, in order to ensure the heat exchange efficiency between the refrigerant and the ice-making raw material in the evaporator 3, the end of the stirring member 1 away from the ice outlet surface 22 extends spirally in a predetermined direction, wherein the predetermined direction is the length direction of the material making cylinder 2, and the stirring member 1 is formed with a plurality of stirring scraper columns 13.

[0042] When an evaporator 3 is installed inside the feed cylinder 2, the stirring element is installed on the evaporator 3, and the inner side of the stirring scraper 13 is in contact with the outer surface of the evaporator 3. The inner sides of multiple stirring scrapers 13 are used to scrape the outer surface of the evaporator 3 simultaneously, and the scraping frequency is increased by using multiple stirring scrapers 13, which can improve the cleaning effect on the outer surface of the evaporator 3, thereby effectively removing dirt, frost or deposits attached to the outer surface of the evaporator 3, thus ensuring that the heat exchange efficiency of the evaporator 3 is not affected, and improving the ice-making efficiency of ice-making raw materials.

[0043] When an evaporator 3 is installed outside the material preparation cylinder 2, the stirring element 1 is installed inside the material preparation cylinder 2, and the outer side of the stirring scraper column contacts the inner wall of the material preparation cylinder. The inner sides of multiple stirring scraper columns 13 are used to scrape the inner wall of the material preparation cylinder 2 simultaneously, and the scraping frequency is increased by using multiple stirring scraper columns 13, which can improve the cleaning effect on the inner wall of the material preparation cylinder 2, thereby effectively removing the dirt, frost or deposits attached to the inner wall of the material preparation cylinder 2, thus ensuring that the heat exchange efficiency of the evaporator 3 is not affected, and improving the ice-making efficiency of ice-making raw materials.

[0044] In some embodiments, such as Figure 5 As shown, the stirring element 1 has four stirring scraper columns 13. During one rotation of the stirring element 1, the four stirring scraper columns 13 can be used to scrape the outer wall surface of the evaporator 3 at the same time, thereby increasing the scraping frequency of the outer wall surface of the evaporator 3.

[0045] Of course, the number of stirring scrapers 13 formed on the stirring component 1 is not limited to 4, but can also be 2, 3, 5 or more, and can be designed according to actual design requirements.

[0046] Specifically, such as Figure 6 and Figure 7 As shown, the stirring scraper column 13 has a scraping part 131. The thickness of the scraping part 131 gradually decreases along the rotation direction of the stirring member 1. When the evaporator 3 is located inside the feeding cylinder 2, the bottom surface of the scraping part 131 is flush with the inner side surface of the stirring scraper column 13. When the evaporator 3 is located outside the feeding cylinder 2, the bottom surface of the scraping part 131 is flush with the outer side surface of the stirring scraper column 13. This allows the scraping part 131 to scrape the outer surface of the evaporator 3 or the inner wall surface of the feeding cylinder 2, thereby improving the cleaning effect of the stirring scraper column 13 on the heat exchange surface between the evaporator 3 and the feeding cylinder 2.

[0047] It should be noted that, for example Figure 6 and Figure 7As shown, the scraping part 131 can be formed on one side of the stirring scraper column 13, and the cross-section formed by the connection between the scraping part 131 and the stirring scraper column 13 is close to the shape of a right trapezoid. In this case, the stirring paddle rotates in one direction. Alternatively, the scraping part 131 can be formed on both sides of the stirring scraper column 13. The cross-section formed by the connection between the scraping part 131 on both sides and the stirring scraper column 13 is close to the shape of an isosceles trapezoid. In this case, the stirring paddle rotates in two directions.

[0048] It should also be noted that the rotating base has a drive hole (not shown in the figure), which can be connected to the output shaft of the drive motor so that the drive motor can rotate forward or reverse to drive the stirring element 1 to rotate forward or reverse. After the ice-making raw materials inside the material-making cylinder 2 are cooled to form slush or ice cream, the slush or ice cream can be transported to the outside of the material-making cylinder 2 through the stirring element 1.

[0049] Specifically, to improve the wear resistance of the scraping part 131, the scraping part 131 is integrally formed with the stirring scraper column 13. The scraping part 131 and the stirring scraper column 13 work together to remove dirt, frost or deposits from the outer wall of the evaporator 3. While ensuring the cleaning effect on the outer wall of the evaporator 3, the stirring scraper column 13 disperses the pressure on the scraping part 131, thereby improving the wear resistance of the scraping part 131 and extending the service life of the stirring scraper column 13 and the stirring paddle.

[0050] In this embodiment of the invention, during the operation of the evaporator 3, ice formation may occur on the outer surface of the evaporator 3, resulting in a blocky ice layer. If the scraping part 131 of the stirring scraper column 13 is directly used to scrape the blocky ice layer, it is easy to damage the scraping part 131. To further ensure the service life of the stirring scraper column 13, such as... Figure 5 As shown, multiple third ice-breaking protrusions 15 are arranged at intervals on the inner side of the stirring element 1, and the tops of the third ice-breaking protrusions 15 are all in contact with the outer wall surface of the evaporator 3. Therefore, when the stirring element 1 rotates, it can drive the multiple third ice-breaking protrusions 15 to rotate relative to the outer surface of the evaporator 3, thereby physically breaking the ice layer on the surface of the evaporator 3. This allows the scraping part 131 of the stirring scraper column 13 to scrape the broken ice layer, reducing the force between the scraping part 131 and the ice layer, effectively preventing damage to the scraping part 131 during rotation, and ensuring the service life of the stirring scraper column 13.

[0051] The top surface of the third ice-breaking protrusion 15 forms a preset gap with the outer wall surface of the evaporator 3. The preset gap is 0.05mm-0.4mm. This ensures the ice-breaking efficiency of the third ice-breaking protrusion 15 on the outer wall surface of the evaporator 3, while avoiding the rotation of the stirring element 1 being hindered by the outer wall surface of the evaporator 3, ensuring the stable rotation of the stirring element 1, and ensuring the conveying efficiency of the stirring element 1 for slush or ice cream.

[0052] In some optional embodiments, the preset gap can be 0.5mm, 0.1mm, 0.15mm, 0.2mm, 0.25mm, 0.3mm, 0.35mm and 0.4mm, but is not limited to these. It can be set according to the actual design requirements to break ice on the outer surface of the evaporator 3, while the outer surface of the evaporator 3 does not obstruct the rotation of the stirring element 1.

[0053] Furthermore, the third ice-breaking protrusion 15 is connected to the inner side of the stirring component 1 by a circular arc, and the top surface of the third ice-breaking protrusion 15 is an arc surface, so as to increase the contact area between the top surface of the second ice-breaking protrusion 25 and the outer surface of the evaporator 3, reduce the wear of the third ice-breaking protrusion 15, and at the same time avoid the third ice-breaking protrusion 15 from forming scratches on the outer surface of the evaporator 3, so as to ensure that the heat exchange efficiency between the refrigerant of the evaporator 3 and the ice-making raw material is not affected, and at the same time avoids obstructing the flow of ice-making raw material or shaved ice and ice cream.

[0054] Specifically, the top surface of the third ice-breaking protrusion 15 is preferably formed into a streamlined arc surface so that the third ice-breaking protrusion 15 can adapt to the fluid dynamics of ice-making raw materials or shaved ice and ice cream, and reduce the fluid resistance experienced by the stirring component 1.

[0055] In this embodiment, as Figure 6 As shown, a first gap d1 is formed between the outer edge of the stirring element 1 and the inner wall of the mixing cylinder 2, wherein the first gap d1 is 1.5mm-6mm; a second gap d2 is formed between the outer edge of the stirring element 1 and the inner wall of the mixing cylinder 2, wherein the second gap d2 is 1.5mm-4mm; the outer edge of the stirring element 1 is used to stir the slush or ice cream in contact with the inner wall of the mixing cylinder 2, thereby pushing this part of the slush or ice cream back into the internal cooling chamber of the mixing cylinder 2, avoiding material accumulation on the inner wall of the mixing cylinder 2, improving the uniformity of the slush or ice cream, and at the same time preventing the rotation of the stirring element 1 from being affected by the inner wall of the mixing cylinder 2.

[0056] Preferably, the first spacing d1 is 1.9 mm and the second spacing d2 is 1.6 mm, so as to reduce the distance between the outer edge of the stirring component 1 and the inner wall of the mixing cylinder 2 without affecting the rotation of the stirring component 1, thereby improving the stirring effect of the stirring component 1 on the slush or ice cream in contact with the inner wall of the mixing cylinder 2.

[0057] Of course, in some other embodiments, the first spacing d1 can also be 1.5mm, 2mm, 3mm, 4mm, 5mm and 6mm, but is not limited to this, and can be designed according to actual needs; the second spacing d2 can also be 1.5mm, 2mm, 2.5mm, 3mm, 3.5mm and 4mm, but is not limited to this, and can be designed according to actual needs, as long as it can avoid material accumulation on the inner side wall of the material preparation cylinder 2, and at the same time ensure that the rotation and stirring of the stirring component 1 are not affected.

[0058] A third gap d3 is formed between the outer edge of the mixing element 1 and the inner top wall of the mixing cylinder 2, wherein the third gap d3 is 2mm-38mm, so as to form a return space between the top of the mixing element 1 and the top wall of the mixing cylinder 2, so as to facilitate the return of slush or ice cream that does not flow directly from the ice outlet 21 to the inside of the mixing cylinder 2. At the same time, it ensures that the mixing element 1 can push the slush or ice cream on the top wall of the mixing cylinder 2 and the top of the mixing element 1 to flow, preventing the slush or ice cream located on the top of the mixing cylinder 2 from being stuck on the top of the mixing cylinder 2, and further improving the uniformity of the mixing of slush or ice cream in the mixing cylinder 2 by the mixing system.

[0059] In some embodiments, the third spacing d3 can be 2mm, 10mm, 15mm, 20mm, 25mm, 30mm, or 38mm, but is not limited to these. It can be designed according to actual needs to provide a reflux space for smoothies or ice cream, while the stirring element 1 can push the smoothies or ice cream at the top of the mixing cylinder 2.

[0060] Accordingly, this utility model also provides a cold drink machine, which includes a housing, a refrigeration system, and the stirring system described in any one of the above-mentioned embodiments. Both the refrigeration system and the stirring system are located inside the housing, and the refrigeration system is connected to the evaporator 3 via a refrigeration pipe. The cold drink machine possesses all the beneficial effects of the stirring component 1 and the stirring system described above, which will not be elaborated further here.

[0061] It should also be noted that the refrigeration system may include a compressor, a throttling device, and a condenser. The evaporator 3 is connected to the outlet of the throttling device via refrigeration piping to realize the refrigeration cycle of the refrigeration system. The specific connection methods of the components in the refrigeration system are existing technologies and will not be described in detail here.

[0062] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this invention, and these improvements and modifications are also considered to be within the protection scope of this utility model.

Claims

1. A stirring system, characterized in that, The device includes a material preparation cylinder and a stirring component disposed inside the material preparation cylinder. The material preparation cylinder is provided with an ice outlet surface, and the ice outlet surface forms an ice outlet. The end of the stirring component facing the ice outlet surface forms an ice outlet end face, and a preset gap is formed between the ice outlet end face and the ice outlet surface. One of the ice-exit end face and the ice-exit surface has a first ice-breaking protrusion, and the other has an avoidance recess. An ice-breaking space is formed between the first ice-breaking protrusion and the avoidance recess to break the ice at the ice outlet.

2. The stirring system according to claim 1, characterized in that, The first ice-breaking protrusion is formed on the ice-exit end face, the ice-exit port is formed at the lower end of the ice-exit surface, and the ice-exit port is formed with a plurality of partition rods, and the avoidance recess is formed between two adjacent partition rods or between the partition rods and the ice-exit surface.

3. The stirring system according to claim 2, characterized in that, The separator bar has a plurality of second ice-breaking protrusions on the side facing the ice outlet end face, and when the first ice-breaking protrusion moves to the ice-breaking space, the second ice-breaking protrusions are misaligned with the first ice-breaking protrusion.

4. The stirring system according to claim 2, characterized in that, Multiple first ice-breaking protrusions form a sawtooth shape on the ice-exit end face, and each first ice-breaking protrusion transitions to the ice-exit end face with a rounded arc.

5. The stirring system according to claim 1, characterized in that, The stirring element extends spirally in a predetermined direction at one end away from the ice outlet, and the predetermined direction is the length direction of the material preparation cylinder; the stirring element is formed with multiple stirring scrapers. The material preparation cylinder is equipped with an evaporator, the stirring element is installed on the outer surface of the evaporator, and the inner side of the stirring scraper is in contact with the outer surface of the evaporator. Alternatively, an evaporator may be provided outside the material preparation cylinder, the stirring element may be installed inside the material preparation cylinder, and the outer side of the stirring scraper may be in contact with the inner wall of the material preparation cylinder.

6. The stirring system according to claim 5, characterized in that, The stirring scraper column has a scraping section, and the thickness of the scraping section gradually decreases along the rotation direction of the stirring element; The bottom surface of the scraping part is flush with the inner side surface of the stirring scraper; or the bottom surface of the scraping part is flush with the outer side surface of the stirring scraper.

7. The stirring system according to claim 5, characterized in that, The inner side of the stirring element is provided with a number of third ice-breaking protrusions at intervals, and the top of each of the third ice-breaking protrusions is in contact with the outer surface of the evaporator.

8. The stirring system according to claim 7, characterized in that, The third ice-breaking protrusion is connected to the inner side arc of the stirring component, and the top surface of the third ice-breaking protrusion is an arc surface.

9. The stirring system according to claim 1, characterized in that, A first gap is formed between the outer edge of the stirring component and the inner wall of the material preparation cylinder, the first gap being 1.5mm-6mm; A second gap is formed between the outer edge of the stirring component and the inner wall of the material preparation cylinder, the second gap being 1.5mm-4mm; A third gap is formed between the outer edge of the stirring component and the inner top wall of the material preparation cylinder, and the third gap is 2mm-38mm.

10. A cold drink machine, characterized in that, It includes a housing, a refrigeration system, and a stirring system as described in any one of claims 1 to 9, wherein the refrigeration system and the stirring system are both disposed inside the housing.