Steam foaming equipment

By adopting a detachable frame structure on the steam milk wand of the coffee machine, and utilizing magnetic rings and limiting plates, the problem of cumbersome filter removal is solved, enabling quick filter replacement and cleaning, and improving operational convenience.

CN224206635UActive Publication Date: 2026-05-08BEAR ELECTRICAL APPLIANCE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
BEAR ELECTRICAL APPLIANCE CO LTD
Filing Date
2025-05-22
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

The process of removing the filter from the steam milk wand of existing coffee machines is cumbersome, requiring the removal of the outer casing bolts, which is inconvenient.

Method used

It adopts a detachable frame structure, uses magnetic rings to attach to the tube body, and combines a limiting plate and damping hinge design to achieve quick replacement and cleaning of the filter screen, simplifying the disassembly process.

Benefits of technology

The design of the magnetic ring and limiting plate simplifies the process of replacing and cleaning the filter, reduces the difficulty of operation, and improves the ease of use.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to steam foaming equipment which comprises a pipe body, comprising a frame which is detachably connected to a pipe opening of a pipe body. A magnetic attraction ring is arranged at the top of the frame, and when the frame and the pipe body are connected and fixed, the magnetic attraction ring is attracted to a pipe opening of the pipe body; the utility model has the advantages that the magnetic suction ring of the frame can be adsorbed at the pipe orifice of the pipe body, and the filter screen can be quickly replaced and maintained by directly taking off the frame from the pipe orifice of the pipe body.
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Description

Technical Field

[0001] This utility model relates to the field of coffee machines, and in particular to a steam foaming device. Background Technology

[0002] To make milk-based coffees such as lattes, mochas, and cappuccinos, coffee liquid needs to be mixed with frothed milk. Coffee machines use a steam wand to froth the milk; specifically, the wand sprays steam into the milk, drawing air into the milk and creating foam.

[0003] The steam milk wand has a filter screen fixed at the nozzle to prevent impurities from entering the tube. However, as the steam milk wand is used over time, the filter screen inevitably ages or accumulates dirt, requiring removal and replacement or cleaning. Removing the filter screen is cumbersome and inconvenient; the operator must loosen the bolts between the outer casing and the tube body to remove the outer casing, and then detach the filter screen.

[0004] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this disclosure, and therefore may include information that does not constitute prior art known to those skilled in the art. Utility Model Content

[0005] In view of the shortcomings of the existing technology, this utility model discloses a steam foaming device.

[0006] The technical solution adopted in this utility model is as follows:

[0007] A steam foaming device includes a pipe body; a frame detachably connected to the pipe opening; a magnetic ring is provided on the top of the frame, which is attracted to the pipe opening when the frame and the pipe body are fixedly connected; and a filter screen is provided at the center of the frame.

[0008] Furthermore, the width of the magnetic ring is smaller than the thickness of the tube body.

[0009] Furthermore, the frame is provided with several limiting plates, which are evenly arranged along the circumference of the frame. Several limiting grooves are opened on the outer wall of the tube. The number of limiting plates and limiting grooves is the same. When the frame and the tube are connected and fixed, the limiting plates are embedded in the limiting grooves.

[0010] Furthermore, a buckle plate is rotatably connected to the top of the limiting plate.

[0011] Furthermore, a damping hinge is provided between the limiting plate and the buckle plate.

[0012] Furthermore, the inner wall of the buckle plate has a protrusion, and the top of the limiting groove has a receiving cavity. When the buckle plate is embedded in the limiting groove, the protrusion is located in the receiving cavity.

[0013] Furthermore, the surface of the protrusion is spherical, and the inner wall surface of the receiving cavity is spherical.

[0014] Furthermore, hooks are provided on the outer surface of the buckle plate.

[0015] The beneficial effects of this utility model are as follows:

[0016] 1. The magnetic ring of the frame can be attached to the opening of the tube. At this time, the filter screen is located at the opening. After the steam milk stick has been used for a period of time, the operator can pull the frame outward with force. At this time, the magnetic ring will disengage from the opening of the tube, releasing the lock between the two. The frame and the filter screen can be removed. A new filter screen can be installed as needed, or the filter screen can be cleaned and reused. During the process of removing the filter screen, the user does not need to disassemble the outer shell of the steam milk stick. The filter screen can be removed directly, reducing the difficulty of disassembly and repair.

[0017] 2. When the frame is installed at the pipe opening, the limiting plate is inserted into the limiting groove, thereby restricting the movement of the frame and preventing the frame from rotating arbitrarily along the circumference of the pipe during operation.

[0018] 3. After the buckle is fastened, the protrusion is embedded in the receiving cavity, realizing a secondary locking of the frame and preventing the frame from easily falling off due to external force.

[0019] 4. The contact surfaces of both the protrusion and the receiving cavity are spherical. When the staff pulls down to disassemble the frame, the buckle rotates and unlocks due to the spherical action, making it easier to remove the frame. Attached Figure Description

[0020] Figure 1 This is a cross-sectional structural diagram of a steam foaming device.

[0021] Figure 2 This is a schematic diagram of the framework.

[0022] In the diagram: 1. Frame; 2. Magnetic ring; 3. Filter screen; 4. Limiting plate; 41. Damping hinge; 42. Buckle plate; 43. Protrusion; 44. Hook; 5. Tube body; 51. Limiting groove; 52. Receiving cavity. Detailed Implementation

[0023] The specific embodiments of this utility model are described below with reference to the accompanying drawings.

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the device proposed by this utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. The advantages and features of this utility model will become clearer according to the following description. It should be noted that the accompanying drawings are in a very simplified form and use non-precise proportions, only used to conveniently and clearly assist in illustrating the purpose of the embodiments of this utility model. Please refer to the accompanying drawings to make the objectives, features, and advantages of this utility model more apparent and understandable. It should be understood that the structures, proportions, sizes, etc., depicted in the accompanying drawings are only used to complement the content disclosed in the specification, for those skilled in the art to understand and read, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportional relationships, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0025] Example:

[0026] A steam foaming device, such as Figure 1 As shown, it includes a pipe body 5 and a frame 1, with the frame 1 being detachably connected to the pipe opening of the pipe body 5.

[0027] like Figure 1 As shown, several limiting grooves 51 are formed on the outer wall of the pipe body 5. The limiting grooves 51 are evenly distributed around the circumference of the pipe body 5, and the direction of the limiting grooves 51 is set along the axial direction of the pipe body 5. A receiving cavity 52 is formed at the top of the limiting groove 51. The inner wall surface of the receiving cavity 52 is spherical, and the maximum depth of the receiving cavity 52 is less than the wall thickness of the pipe body 5.

[0028] like Figure 1 and Figure 2 As shown, a filter screen 3 is installed at the center of frame 1. The filter screen 3 is made of stainless steel or synthetic fiber. During the process of steam foaming milk, the filter screen 3 can prevent clothing from entering the tube 5.

[0029] A magnetic ring 2 is provided at the top of the frame 1. The magnetic ring 2 is located at the center of the frame 1. The width of the magnetic ring 2 is less than the thickness of the tube body 5, and the outer diameter of the magnetic ring 2 is less than the outer diameter of the tube body 5. When the tube body 5 and the frame 1 are connected, the magnetic ring 2 is attracted to the opening of the tube body 5, and the magnetic ring 2 is coaxially arranged with the tube body 5.

[0030] Several limiting plates 4 are provided at the outer edge of the frame 1, and the limiting plates 4 are evenly arranged along the circumference of the frame 1. The number of limiting plates 4 and limiting grooves 51 is the same, and the width of the limiting plates 4 is the same as the width of the limiting grooves 51, so as to ensure that the limiting plates 4 can be inserted into the limiting grooves 51. The limiting plates 4 and the limiting grooves 51 restrict each other to prevent the frame 1 from rotating circumferentially at will during operation.

[0031] A buckle plate 42 is rotatably connected to the top of the limiting plate 4. A damping hinge 41 is provided between the limiting plate 4 and the buckle plate 42. There is a protrusion 43 on the inner side wall of the buckle plate 42, and the surface of the protrusion 43 is spherical. A hook 44 is provided on the outer side of the buckle plate 42. When the frame 1 and the tube body 5 are connected as a whole, the protrusion 43 is embedded in the receiving cavity 52. ​​Due to the action of the damping hinge 41, the buckle plate 42 has an inward movement tendency, realizing the secondary locking of the frame 1 without excessive external force. The contact surfaces of both the protrusion 43 and the receiving cavity 52 are spherical. When the frame 1 is pulled down and removed, the protrusion 43 can slide along the inner wall of the receiving cavity 52, and the buckle plate 42 can be smoothly rotated outward to unlock. If the buckle plate 42 is stuck, the user can also turn the hook 44 to flip the buckle plate 42.

[0032] Specific work process:

[0033] After a period of use, the filter screen 3 needs to be replaced or cleaned. The user pulls the frame 1 outwards forcefully. During this process, the protrusion 43 moves along the inner wall of the receiving cavity 52, causing the latch 42 to rotate outwards and open. If the latch 42 gets stuck, the hook 44 can be used to flip and open the latch 42, ultimately releasing the secondary lock on the frame 1. When reinstalling the frame 1, first rotate and open the latch 42, then align the limiting plate 4 and the limiting groove 51 one by one. Next, insert the limiting plate 4 into the limiting groove 51, and then push the frame 1 upwards. When the frame reaches its limit, the magnetic ring 2 adheres to the opening of the tube body 5, completing the installation of the filter screen 3. During filter removal, the user can quickly remove the filter screen by pulling the frame 1 forcefully; the operation is convenient.

[0034] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0035] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A steam foaming device, characterized in that: Includes tube body; Includes a frame, which is detachably connected to the pipe opening of the pipe body; A magnetic ring is provided at the top of the frame. When the frame and the tube are connected and fixed, the magnetic ring is attracted to the opening of the tube. A filter screen is provided at the center of the frame.

2. The steam foaming equipment according to claim 1, characterized in that: The width of the magnetic ring is less than the thickness of the tube.

3. The steam foaming equipment according to claim 1, characterized in that: The frame is provided with several limiting plates, which are evenly arranged along the circumference of the frame. Several limiting grooves are opened on the outer wall of the tube. The number of limiting plates and limiting grooves are the same. When the frame and the tube are connected and fixed, the limiting plates are embedded in the limiting grooves.

4. The steam foaming equipment according to claim 3, characterized in that: The top of the limiting plate is rotatably connected to a buckle plate.

5. The steam foaming equipment according to claim 4, characterized in that: A damping hinge is provided between the limiting plate and the buckle plate.

6. The steam foaming equipment according to claim 4, characterized in that: The inner wall of the buckle plate has a protrusion, and the top of the limiting groove has a receiving cavity. When the buckle plate is embedded in the limiting groove, the protrusion is located in the receiving cavity.

7. The steam foaming equipment according to claim 6, characterized in that: The surface of the protrusion is spherical, and the inner wall of the receiving cavity is spherical.

8. The steam foaming equipment according to claim 4, characterized in that: The outer side of the buckle plate is provided with a hook.