Coffee machine steam rod

By designing steam channels, shrinkage sections and buffer sections in the steam rod of the coffee maker, forming a chamber and refining the airflow, the problem of high threshold for use of existing steam rods is solved, and a better milk foaming effect and a convenient cleaning process is achieved.

CN222968350UActive Publication Date: 2025-06-13NINGBO KAFFEE ELECTRIC APPLIANCE CO LTD
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Patent Information

Application Number
CN202422263305.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-14
Publication Date
2025-06-13
Estimated Expiration
2034-09-14

AI Technical Summary

Technical Problem

The existing coffee machine steam rod has a high threshold for use and requires certain skills to effectively foam milk.

Method used

A coffee machine steam rod is designed, with a steam channel in the middle, a shrinking section at the end and a buffer section with a diameter larger than the channel. An airflow through holes are provided below the buffer section to form a negative pressure to cool the steam, and is convenient for cleaning through the design of the jacket and sealing ring.

Benefits of technology

The airflow refinement of the chamber formed by the buffer section and the contraction section is achieved, and the foaming effect of more easily forming dense bubbles is achieved. At the same time, the milk temperature is reduced through external airflow cooling to prevent overheating. The detachable design facilitates regular cleaning.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to accessories of coffee machines, in particular to a coffee machine steam rod, a steam channel is arranged in the middle of the steam rod, a contraction section is arranged at the tail end of the steam rod, and a buffer section with the diameter larger than that of the steam channel is arranged at the lower end of the contraction section. According to the utility model, the special steam channel is adopted, the steam rod is immersed in milk during use, the buffer section forms a milk and steam mixed chamber for foaming instead of directly impacting the milk by steam, and the arrangement of the contraction section enables airflow to be finer and easier to foam into dense bubbles.
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Description

Technical Field

[0001] The utility model relates to household appliance accessories, especially a steam rod for a coffee machine. Background Art

[0002] People's demand for coffee beverages is increasing continuously. As a part of household appliances, the functions and designs of coffee machines are also constantly improving. The traditional steam rod of a coffee machine has a simple structure, usually with only a flat steam channel. The usage threshold is high, and it requires repeated trials and learning to foam milk well and make dense milk foam. Content of the Utility Model

[0003] To solve the deficiencies of the existing steam rod with a high usage threshold and the need for certain skills, the utility model provides a steam rod for a coffee machine.

[0004] The technical solution adopted by the utility model is as follows: a steam rod for a coffee machine, a steam channel is provided in the middle of the steam rod, a contraction section is provided at the end of the steam rod, and a buffer section with a diameter larger than that of the steam channel is provided at the lower end of the contraction section.

[0005] As one of the preferred solutions of a steam rod for a coffee machine, air circulation holes are provided on the side wall of the buffer section close to the contraction section.

[0006] As one of the preferred solutions of a steam rod for a coffee machine, the steam rod is made of two sections connected in a sealed manner.

[0007] As one of the preferred solutions of a steam rod for a coffee machine, a jacket is provided outside the steam rod. A sealing ring is provided at the upper end of the steam rod. The jacket is tightly fitted on the steam rod through the sealing ring. An axially arranged groove for air passage is provided at the socket of the inner wall of the jacket and the sealing ring.

[0008] As one of the preferred solutions of a steam rod for a coffee machine, a gap for air flow is provided between the steam rod and the jacket.

[0009] As one of the preferred solutions of a steam rod for a coffee machine, the length of the jacket after installation is greater than that of the steam rod. The part of the jacket exceeding the steam rod has a decreasing inner diameter from top to bottom and then an increasing inner diameter.

[0010] As one of the preferred solutions of a steam rod for a coffee machine, there is a chamfer on the outer wall at the end of the steam rod.

[0011] As one of the preferred solutions of a steam rod for a coffee machine, a sealing ring is provided at the other end of the steam rod, and the steam rod is inserted and fixed to the coffee machine by the sealing ring.

[0012] The beneficial effects of this embodiment are as follows: When in use, the steam rod is immersed in milk by adopting a special steam channel, and a buffer section forms a chamber for mixing milk and steam for foaming, replacing the direct impact of steam on milk. The setting of the contraction section makes the air flow finer and easier to foam into dense bubbles. While the steam impacts at high speed, a negative pressure is formed in the buffer section. After air circulation holes are opened, external air flows in to cool the steam, forming two air flows to impact the milk. Secondly, the steam is cooled to prevent the milk from being too hot to foam. The detachable steam rod is convenient for regular cleaning of the steam rod. Brief Description of the Drawings

[0013] Figure 1 This is a perspective view of the present utility model.

[0014] Figure 2 This is an exploded view of the present utility model.

[0015] Figure 3 This is a cross-sectional view of the present utility model.

[0016] Figure 4 This is an exploded view of the steam rod.

[0017] Wherein: 1. Steam rod; 2. Steam channel; 3. Contraction section; 4. Buffer section; 5. Air circulation hole; 6. Outer sleeve; 7. Sealing ring; 8. Groove; 9. Gap; 10. Chamfer. Detailed Embodiment

[0018] The following further describes the present utility model with reference to specific drawings. In the following embodiments, all technical features may be described. It should be understood that any third party may cancel some technical features to avoid infringement. Among them, the structures listed in this embodiment may be cancelled according to actual situations. Therefore, the listed technical features are not all essential technical features. The protection scope of the present utility model shall be subject to the claims. Other embodiments of the present utility model can be adjusted according to actual needs and replaced according to conventional structures, which will not be elaborated here and does not mean giving up such similar solutions.

[0019] As Figures 1 to 3 shown: Embodiment 1: A steam rod of a coffee machine, a steam channel is provided in the middle of the steam rod, a contraction section is provided at the end of the steam rod, and a buffer section with a diameter larger than that of the steam channel is provided at the lower end of the contraction section. When in use, the steam rod is immersed in milk by adopting a special steam channel, and the buffer section forms a chamber for mixing milk and steam for foaming, replacing the direct impact of steam on milk. The setting of the contraction section makes the air flow finer and easier to foam into dense bubbles.

[0020] Embodiment 2: This embodiment is an improvement based on Embodiment 1. As a further solution of this embodiment, air circulation holes are provided on the side wall of the buffer section close to the contraction section. While the steam impacts at high speed, a negative pressure is formed in the buffer section. After the air circulation holes are opened, external air flows in to cool the steam, forming two airflows to impact the milk. Secondly, the steam is cooled to prevent the milk from being too hot to foam.

[0021] Embodiment 3: In combination with the attached Figure 4 , this embodiment is an improvement based on Embodiment 1. The steam rod is made of two sections connected in a sealed manner. Since the lower end of the steam rod contacts the milk, in the prior art, steam is usually used for impact cleaning, however, milk liquid or stains will still remain on the inner wall. The detachable steam rod is convenient for regular cleaning of the steam rod.

[0022] Embodiment 4: This embodiment is an improvement based on Embodiment 1. An outer sleeve is provided outside the steam rod, and a sealing ring is provided at the upper end of the steam rod. The outer sleeve is tightly fitted on the steam rod through the sealing ring. An axially arranged groove for air passage is provided at the socket of the inner wall of the outer sleeve and the sealing ring. A gap for air flow is provided between the steam rod and the outer sleeve. After the outer sleeve is installed, its length is greater than that of the steam rod. The part of the outer sleeve extending beyond the steam rod has a decreasing inner diameter from top to bottom and then an increasing inner diameter. As one of the preferred solutions for the steam rod of a coffee machine, a chamfer is provided on the outer wall of the end of the steam rod. The steam rod is further provided. After the steam rod is adopted, the impact air flow range is larger, and there are more air channels, making it easier to foam. And the outer sleeve is sleeved on the steam rod through the sealing ring, which is convenient for disassembly.

[0023] Embodiment 5: A sealing ring is provided at the other end of the steam rod, and the steam rod is inserted and fixed to the coffee machine by the sealing ring. It is convenient for the overall disassembly and cleaning of the steam rod.

Claims

1. A coffee machine steam rod, wherein a steam channel is provided in the middle of the steam rod, characterized in that: A contraction section is provided at the end of the steam rod, and a buffer section with a diameter larger than that of the steam channel is provided at the lower end of the contraction section.

2. The coffee machine steam rod according to claim 1, characterized in that: The buffer section is provided with an air flow hole near the side wall of the contraction section.

3. The coffee machine steam rod according to claim 2, characterized in that: The steam rod is made of two sections that are sealed and connected.

4. The coffee machine steam rod according to claim 1, characterized in that: The steam rod outer shell is provided with an outer shell, and a sealing ring is provided at the upper end of the steam rod. The outer shell is tightly fitted on the steam rod through the sealing ring, and an axially arranged groove for air to pass through is provided at the joint between the inner wall of the outer shell and the sealing ring.

5. The coffee machine steam rod according to claim 4, characterized in that: A gap is provided between the steam rod and the outer sleeve for air flow to pass through.

6. The coffee machine steam rod according to claim 5, characterized in that: After the outer sleeve is installed, its length is greater than the steam rod. The inner diameter of the portion of the outer sleeve that exceeds the steam rod decreases and shrinks from top to bottom, and then increases.

7. The coffee machine steam rod according to claim 6, characterized in that: The outer wall at the end of the steam rod has a cut corner.

8. The coffee machine steam rod according to any one of claims 1 to 7, characterized in that: The other end of the steam rod is provided with a sealing ring, which is plugged and fixed to the coffee machine.