An ice cream machine overrun tube assembly and ice cream machine

By introducing an air guide tube into the overrunning tube of the ice cream machine and using an air pump to actively inject air, the problem of unstable air intake in the overrunning tube of the traditional ice cream machine is solved, achieving stability and uniformity of ice cream overrun, and improving the taste and quality of ice cream.

CN224368989UActive Publication Date: 2026-06-19HUANGSHI DONPER REFRIGERATION

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HUANGSHI DONPER REFRIGERATION
Filing Date
2025-06-24
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

Existing ice cream machines rely on gravity to passively draw in air through their overrunning tubes, resulting in unstable air intake, which affects the consistency of overrun and the uniformity of mixing, making it difficult to meet the requirements for stable and smooth texture of high-quality ice cream.

Method used

An air guide pipe is used to pass through the expansion tube, and gas is actively injected by an air pump to achieve forced mixing of slurry and air, ensuring controllable and uniform air intake.

Benefits of technology

It improves the overrun effect, ensures the consistency of ice cream overrun and the smoothness of the texture, and enhances the batch-to-batch consistency and overrun efficiency of ice cream machines.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to ice cream swelling technical field, concretely relates to a kind of ice cream machine swelling pipe assembly and ice cream machine.A kind of ice cream machine swelling pipe assembly, including swelling pipe, gas guide pipe and first through joint.The swelling pipe wall is equipped with feed hole;The gas guide pipe is through the swelling pipe, and the upper end of the gas guide pipe is located inside the swelling pipe, and the lower end extends to the outside of the swelling pipe;First through joint, including first tube body and the first joint and the second joint at its both ends, first tube body is formed with the first gas guide channel that is connected first joint and second joint in;Wherein, first tube body and swelling pipe upper port form detachable seal connection;The upper end of first joint is connected with the gas guide pipe;Second joint is used for external gas source device, to inject gas into the gas guide pipe.A kind of ice cream machine, including above-mentioned ice cream machine swelling pipe assembly.The utility model can actively, stably, efficiently control the air mixing amount of slurry, and improve the swelling effect of ice cream.
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Description

Technical Field

[0001] This utility model belongs to the field of ice cream extrusion technology, specifically relating to an ice cream machine extrusion tube assembly and an ice cream machine. Background Technology

[0002] With the continuous development of the social economy and the upgrading of consumption concepts, people have increasingly higher demands for the sensory experience of finished ice cream, especially its delicate texture and fluffy, dense taste. The overrun (i.e., the proportion of air mixed into the ice cream mix) is a key indicator determining its lightness and quality. Currently, the core component for achieving the overrun effect in most ice cream machines on the market is the built-in overrunning tube. Its working principle is as follows: under the influence of gravity, the ice cream mix flows from the storage tank through a bottom pipe into the refrigeration and mixing cylinder. During this flow, due to the local negative pressure effect created by the downward flow of the mix, outside air is passively drawn in through the opening at the top of the overrunning tube. The drawn-in air then undergoes preliminary mixing with the downward flow of mix within the pipe, subsequently entering the mixing cylinder for further churning and freezing, ultimately forming ice cream with an overrunning structure.

[0003] However, this traditional method of passively drawing in air by relying on negative pressure generated by gravity flow has significant limitations: the air intake is unstable and uncontrollable. The viscosity and temperature of the slurry, differences in liquid level within the container, and even minute variations in the overrunning tube itself all greatly affect the magnitude of the negative pressure and the amount of air drawn in. This directly leads to large fluctuations in the overrun of the finished ice cream, poor batch-to-batch consistency, and difficulty in meeting consumers' demands for a stable and smooth texture in high-quality ice cream. Furthermore, because the air is passively drawn in rather than actively injected, its mixing with the slurry is often insufficient and uneven, limiting further improvements in the overrunning effect.

[0004] Therefore, there is an urgent need for an ice cream machine overfill tube assembly and an ice cream machine to solve the above problems. Utility Model Content

[0005] This invention addresses the technical problems existing in the prior art by providing an ice cream machine puffing tube assembly and an ice cream machine that can actively, stably, and efficiently control the amount of air mixed in, thereby improving the puffing effect.

[0006] The technical solution of this utility model to solve the above-mentioned technical problems is as follows:

[0007] An ice cream machine overfill tube assembly, comprising:

[0008] The expanded tube has a feed hole in its wall for slurry to enter;

[0009] A gas guide tube extends axially and penetrates the puffing tube, with its upper end located inside the puffing tube and its lower end extending to the outside of the puffing tube.

[0010] The first straight connector is tubular and includes a first tube body and a first connector and a second connector located at both ends of the first tube body. A first air guide channel is formed inside the first tube body to connect the first connector and the second connector.

[0011] The first tube body forms a detachable sealed connection with the upper end of the expanded tube; the first connector is connected to the upper end of the gas guide tube; and the second connector is used to connect an external gas source device to inject gas into the gas guide tube.

[0012] Based on the above technical solution, the present invention can be further improved as follows.

[0013] Furthermore, the upper end of the expanded tube is provided with an internal thread, and the outer wall of the first tube body is provided with a matching external thread, and the two are threadedly connected.

[0014] Furthermore, the gas source device is an air pump.

[0015] Furthermore, the second connector is a quick-release connector.

[0016] This utility model also provides an ice cream machine, wherein the aforementioned ice cream machine overfilling tube assembly further includes:

[0017] A slurry bucket is used to hold slurry.

[0018] The liquid inlet pipe is located at the bottom of the material tank;

[0019] The material cylinder is connected to the material bucket via the liquid inlet pipe;

[0020] The expansion tube assembly is inserted into the liquid inlet pipe; the lower end of the expansion tube and the lower end of the air guide pipe are located inside the liquid inlet pipe; the feed hole is exposed inside the slurry in the material tank.

[0021] Furthermore, the lower end of the liquid inlet pipe is connected to a feed elbow, which is connected to the feed cylinder.

[0022] Furthermore, the lower end of the air guide pipe is provided with a bend that extends into the feed elbow.

[0023] Furthermore, the barrel wall is provided with a second straight connector that penetrates the barrel wall, the second straight connector comprising:

[0024] The first endotracheal inlet is located on the inside of the barrel wall;

[0025] The second airway inlet is located on the outside of the barrel wall;

[0026] The second air passage connects the first air pipe interface and the second air pipe interface;

[0027] The first tracheal interface is connected to the second connector via a first tracheal tube, and the second tracheal interface is connected to an external air source device via a second tracheal tube.

[0028] Furthermore, the second straight connector includes a second tube body, which forms a second air guide channel inside; the two ends of the second tube body are respectively connected to the first air pipe interface and the second air pipe interface; the barrel wall is provided with an opening that matches the shape of the second tube body, and the second tube body passes through the opening and is fixed to the barrel wall.

[0029] Furthermore, the air duct, the first air tube, and the second air tube are all made of plastic tubing.

[0030] The beneficial effects of this utility model are:

[0031] This embodiment features a feed hole on the expansion tube, allowing the slurry to enter directly. An air guide tube runs through the expansion tube, directly introducing air into the center of the slurry flow channel. An air pump actively pressurizes and injects gas, achieving forced mixing of the slurry and air, thus improving expansion uniformity and efficiency. The air pump provides an adjustable air intake based on slurry viscosity and temperature to ensure optimal expansion results. Attached Figure Description

[0032] Figure 1 This is an exploded view of the expanded tube assembly described in an embodiment of the present invention;

[0033] Figure 2 This is a schematic diagram of the structure of the expanded tube assembly described in an embodiment of the present utility model;

[0034] Figure 3 This is a schematic diagram of the structure of the ice cream machine described in an embodiment of the present invention.

[0035] The attached diagram lists the components represented by each number as follows:

[0036] 1. Extruded tube assembly; 11. First straight connector; 111. First tube body; 112. First connector; 113. Second connector; 12. Air guide pipe; 121. Bend; 13. Extruded tube; 131. Feed hole; 2. Material bucket; 3. Liquid inlet pipe; 4. Feed elbow; 5. Material cylinder; 6. Air pump; 71. Second tube body; 72. First air pipe interface; 73. First air pipe; 74. Second air pipe. Detailed Implementation

[0037] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0038] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0039] In the description of this application, the term "for example" is used to mean "used as an example, illustration, or description." Any embodiment described as "for example" in this application is not necessarily to be construed as being more preferred or advantageous than other embodiments. The following description is provided to enable any person skilled in the art to implement and use the present invention. Details are set forth in the following description for purposes of explanation. It should be understood that those skilled in the art will recognize that the present invention can be implemented without using these specific details. In other instances, well-known structures and processes will not be described in detail to avoid obscuring the description of the present invention with unnecessary detail. Therefore, the present invention is not intended to be limited to the embodiments shown, but is consistent with the broadest scope of the principles and features disclosed in this application.

[0040] Example

[0041] An ice cream machine overfill tube assembly, such as Figure 1-2 As shown, it includes:

[0042] The expansion tube 13 has a feed hole 131 on its wall for slurry to enter;

[0043] A gas guide tube 12 extends axially and penetrates the expansion tube 13. The upper end of the gas guide tube 12 is located inside the expansion tube 13, and the lower end extends to the outside of the expansion tube 13.

[0044] The first straight connector 11 is tubular and includes a first tube body 111 and a first connector 112 and a second connector 113 located at both ends of the first tube body 111. A first air guide channel is formed inside the first tube body 111, connecting the first connector 112 and the second connector 113.

[0045] The first tube body 111 forms a detachable sealed connection with the upper end of the expanded tube 13; the first connector 112 is connected to the upper end of the gas guide tube 12; and the second connector 113 is used to connect an external gas source device to inject gas into the gas guide tube 12.

[0046] Specifically, the upper end of the expanded tube 13 is provided with an internal thread, and the outer wall of the first tube body 111 is provided with a matching external thread, and the two are connected by a threaded seal. The threaded connection ensures the sealing and disassembly of the straight connector and the expanded tube 13, facilitating maintenance and replacement.

[0047] Specifically, the air source device is an air pump 6. It provides a stable and controllable air pressure, overcoming the shortcomings of passive air intake in the prior art.

[0048] Specifically, the second connector 113 is a quick-release connector. Quick-release connectors simplify the connection process and improve assembly efficiency.

[0049] In this embodiment, the tube wall of the puffing tube 13 is provided with a feed hole 131 for the slurry to enter, and the air guide tube 12 passes through the puffing tube 13, so that both the slurry and the gas come out from the lower end of the puffing tube 13 assembly 1, so that the air source is directly introduced into the center of the slurry flow channel, and the air pump 6 provides a stable and controllable air source to ensure puffing efficiency, good puffing effect, and better ice cream taste.

[0050] This embodiment also provides an ice cream machine, such as Figure 3 As shown, the ice cream machine overfill tube assembly 1 described above also includes:

[0051] Material bucket 2 is used to hold slurry;

[0052] The liquid inlet pipe 3 is located at the bottom of the material tank 2;

[0053] The material cylinder 5 is connected to the material bucket 2 through the liquid inlet pipe 3;

[0054] The expansion tube 13 assembly 1 is inserted into the liquid inlet pipe 3; the lower end of the expansion tube 13 and the lower end of the air guide pipe 12 are located inside the liquid inlet pipe 3; the feed hole 131 is exposed in the slurry of the material tank 2.

[0055] In this embodiment, the puffing tube 13 assembly 1 is installed on the ice cream machine's feed tank 2, so that the feed hole 131 is exposed to the slurry in the feed tank 2, ensuring that the slurry mixes with the gas as it flows in, thus optimizing the puffing process.

[0056] Specifically, the lower end of the liquid inlet pipe 3 is connected to the feed elbow 4, which is connected to the feed cylinder 5.

[0057] Specifically, the lower end of the air guide pipe 12 is provided with a bend 121, which extends into the feed elbow 4.

[0058] In this embodiment, the bend 121 is the bend at the lower end of the air guide tube 12. The shape of the bend 121 is adapted to the inner contour of the feed elbow 4 and can be inserted into it.

[0059] In one possible embodiment, the barrel 2 is provided with a second through connector penetrating the barrel wall, the second through connector comprising:

[0060] The first airway 73 interface 72 is located on the inner side of the barrel wall;

[0061] The second airway 74 interface is located on the outside of the barrel wall;

[0062] The second air passage connects the first air tube 73 interface 72 and the second air tube 74 interface;

[0063] The first air pipe 73 interface 72 is connected to the second connector 113 through the first air pipe 73, and the second air pipe 74 interface is connected to an external air source device through the second air pipe 74.

[0064] Specifically, the second straight connector includes a second tube body 71, which forms a second air guide channel inside; the two ends of the second tube body 71 are respectively connected to the first air pipe 73 interface 72 and the second air pipe 74 interface; the barrel wall is provided with an opening that matches the shape of the second tube body 71, and the second tube body 71 passes through the opening and is fixed to the barrel wall.

[0065] Specifically, the air guide tube 12, the first air tube 73, and the second air tube 74 are all made of plastic tubing. Plastic tubing is resistant to low temperatures, has good flexibility, adapts to complex assembly paths, and reduces the risk of air leakage.

[0066] In this embodiment, the second tube body 71 is provided with external threads, and the opening is provided with matching internal threads. The two are connected by threaded seals and can be further fixed to the barrel wall by nuts.

[0067] The working process of this embodiment is as follows:

[0068] After the slurry is poured into the material tank 2, it flows into the liquid inlet pipe 3 through the feed hole 131 on the puffing tube 13. At the same time, the air pump 6 is started, and the gas is transported through the second air pipe 74 to the second straight connector fixed on the wall of the material tank 2, and then through the first air pipe 73 to the first straight connector 11 connected to the upper end of the puffing tube 13, and finally into the air guide pipe 12 that runs through the puffing tube 13. The pressurized gas is released from the lower end of the air guide pipe 12 and merges with the downward flow of slurry in the liquid inlet pipe 3 (or extends to the feed elbow 4) to achieve preliminary forced mixing of slurry and gas. The gas-liquid mixture after preliminary mixing then flows into the material cylinder 5, where it is further tumbled and fused. The fully mixed and uniform fluid is finally solidified and shaped by the refrigeration system in the material cylinder 5 to make ice cream with good puffing effect.

[0069] In summary: the air pipe 12 directly introduces the air source into the center of the slurry flow channel, and the air pump 6 provides a stable and controllable air pressure to ensure the expansion effect.

[0070] While embodiments or examples of this disclosure have been described with reference to the accompanying drawings, it should be understood that the methods, systems, and devices described above are merely exemplary embodiments or examples, and the scope of this utility model is not limited by these embodiments or examples, but only by the granted claims and their equivalents. Various elements in the embodiments or examples may be omitted or replaced by their equivalents. Furthermore, the steps may be performed in a different order than that described in this disclosure. Further, various elements in the embodiments or examples may be combined in various ways. Importantly, as technology evolves, many elements described herein can be replaced by equivalents that appear after this disclosure.

Claims

1. An ice cream machine overfill tube assembly, characterized in that, include: The expanded tube has a feed hole in its wall for slurry to enter; A gas guide tube extends axially and penetrates the puffing tube, with its upper end located inside the puffing tube and its lower end extending to the outside of the puffing tube. The first straight connector is tubular and includes a first tube body and a first connector and a second connector located at both ends of the first tube body. A first air guide channel is formed inside the first tube body to connect the first connector and the second connector. The first tube body forms a detachable sealed connection with the upper end of the expanded tube; the first connector is connected to the upper end of the gas guide tube; and the second connector is used to connect an external gas source device to inject gas into the gas guide tube.

2. The ice cream machine overfill tube assembly according to claim 1, characterized in that, The upper end of the expanded tube is provided with an internal thread, and the outer wall of the first tube body is provided with a matching external thread, and the two are threadedly connected.

3. The ice cream machine overfill tube assembly according to claim 1, characterized in that, The gas source device is an air pump.

4. The ice cream machine overfill tube assembly according to claim 1, characterized in that, The second connector is a quick-release connector.

5. An ice cream machine, characterized in that, The ice cream machine includes the ice cream machine overfill tube assembly according to any one of claims 1 to 4, and further includes: A slurry bucket is used to hold slurry. The liquid inlet pipe is located at the bottom of the material tank; The material cylinder is connected to the material bucket via the liquid inlet pipe; The expansion tube assembly is inserted into the liquid inlet pipe; the lower end of the expansion tube and the lower end of the air guide pipe are located inside the liquid inlet pipe; the feed hole is exposed inside the slurry in the material tank.

6. The ice cream machine according to claim 5, characterized in that, The lower end of the liquid inlet pipe is connected to a feed elbow, which is connected to the feed cylinder.

7. The ice cream machine according to claim 6, characterized in that, The lower end of the air guide pipe is provided with a bend, which extends into the feed elbow.

8. The ice cream machine according to claim 7, characterized in that, The barrel wall is provided with a second through-hole connector, the second through-hole connector comprising: The first tracheal inlet is located on the inside of the barrel wall; The second airway inlet is located on the outside of the barrel wall; The second air passage connects the first air pipe interface and the second air pipe interface; The first tracheal interface is connected to the second connector via a first tracheal tube, and the second tracheal interface is connected to an external air source device via a second tracheal tube.

9. The ice cream machine according to claim 8, characterized in that, The second straight connector includes a second tube body, which forms a second air guide channel inside; the two ends of the second tube body are respectively connected to the first air pipe interface and the second air pipe interface; the barrel wall is provided with an opening that matches the shape of the second tube body, and the second tube body passes through the opening and is fixed to the barrel wall.

10. The ice cream machine according to claim 8, characterized in that, The air duct, the first air tube, and the second air tube are all made of plastic tubing.