Multi-functional steam ice cream stick
By designing a sleeve and adjustment head on the steam milk stick, the problem of poor air volume adjustment accuracy of existing steam milk sticks is solved, enabling quick switching and flexible control of milk frothing rate, thus improving the efficiency of steam milk sticks and the quality of milk frothing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BEAR ELECTRICAL APPLIANCE CO LTD
- Filing Date
- 2025-06-26
- Publication Date
- 2026-06-26
AI Technical Summary
Existing steam milk wands have poor precision in adjusting the amount of air mixed into the milk, which affects the quality of the milk foam.
A multifunctional steam milk wand has been designed. By fitting a sleeve and an adjustment head onto the tube body, the rotation of the adjustment head can connect or disconnect the air inlet groove, enabling quick switching of the steam milk wand's working mode. Furthermore, by adjusting the width of the radial section, the air transmission efficiency can be adjusted, thereby improving the milk foaming rate.
It enables quick switching of the steam milk wand's working mode and flexible control of the milk frothing rate, improving efficiency and the quality of milk frothing.
Smart Images
Figure CN224403404U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of milk frothing technology, and in particular to a multifunctional steam milk stick. Background Technology
[0002] Most coffee machines on the market are equipped with a steam milk wand. The steam milk wand uses hot steam to impact the milk and incorporate air into the milk, so as to produce a uniform and delicate milk foam while heating the milk.
[0003] Existing steam milk wands adjust the amount of air incorporated into the milk by changing the height of the wand relative to the milk, thereby controlling the size of the milk foam or switching between heating and frothing modes. The amount of air incorporated is adjusted by controlling the position of the steam wand's nozzle relative to the milk surface. However, this method makes it difficult to control the height of the steam wand relative to the milk surface, resulting in poor precision in adjusting the amount of air incorporated, which affects the quality of the milk foam.
[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 prior art, the purpose of this utility model is to provide a multifunctional steam milk stick to simplify the operation of the steam milk stick.
[0006] The technical solution of this utility model is as follows:
[0007] The multi-functional steam milk stick includes:
[0008] The pipe body has a steam source connected at one end and a nozzle at the other end.
[0009] A sleeve is fitted onto the tube body; an air cavity is formed between the sleeve and the tube body, and an air inlet is provided on the sleeve to communicate with the air cavity; an adjusting cylinder is provided on the surface of the sleeve around the air inlet;
[0010] An adjusting sleeve is disposed inside the adjusting cylinder; an air inlet groove A is formed on the adjusting sleeve; the air inlet groove A is connected to the air inlet hole;
[0011] An adjusting head extends into the adjusting cylinder; an air inlet groove B is formed on the adjusting head.
[0012] The sleeve has an opening at one end near the nozzle, and the other end of the sleeve is sealed to the pipe body; the adjusting head can be rotated about its axis; the air inlet groove A and the air inlet groove B are connected or disconnected.
[0013] A further technical solution is that the adjusting head extends into the adjusting sleeve; the air inlet groove A is formed on the outer surface of the adjusting sleeve; the adjusting sleeve is also provided with a vent hole; the vent hole connects the air inlet groove A and the inner surface of the adjusting sleeve.
[0014] A further technical solution is that the air intake groove B includes an axial section arranged along the axis of the adjusting head and a radial section arranged radially around the axis of the adjusting head; the radial section connects to the air intake groove A; the width of the radial section varies along its length.
[0015] A further technical solution is that the adjusting head includes a first section with a large diameter and a second section with a small diameter; a step is formed between the first section and the second section; the second section extends into the adjusting sleeve; and the adjusting sleeve contacts the step.
[0016] A further technical solution is that, around the axis of the adjusting sleeve, a second notch is opened at the end of the adjusting sleeve away from the sleeve; a first air inlet groove is opened on the inner surface of the adjusting sleeve; the first air inlet groove connects the second notch and the end of the adjusting sleeve away from the sleeve.
[0017] A further technical solution is that, around the axis of the adjusting cylinder, a first notch is opened at the end of the adjusting cylinder near the adjusting head; the adjusting head is provided with an adjusting protrusion that engages with the first notch.
[0018] A further technical solution is to provide a limiting sleeve, which is fitted onto the adjusting cylinder; a through hole and a relief groove are provided at the end of the limiting sleeve away from the adjusting cylinder; the relief groove communicates with the through hole; the adjusting head passes through the limiting sleeve along the through hole; the adjusting protrusion passes through the limiting sleeve along the relief groove.
[0019] A further technical solution is to open a second air intake slot within the first gap; the second air intake slot is connected to the first air intake slot.
[0020] A further technical solution is that a gap is left between the adjusting sleeve and the sleeve to form a cavity; the cavity is simultaneously connected to the air intake groove A and the cavity.
[0021] A further technical solution is that a first limiting hole is provided on the adjusting cylinder; a first limiting protrusion is provided on the adjusting sleeve to engage with the first limiting hole.
[0022] The beneficial technical effects of this utility model are as follows:
[0023] (1) The multifunctional steam milk stick of this utility model has a tube body connected to a steam source and has a nozzle to spray hot steam into the milk. A sleeve is also fitted on the tube body. By rotating the adjusting head on the sleeve, the air inlet groove A and the air inlet groove B can be connected or disconnected. When the air inlet groove A and the air inlet groove B are connected, the air outside the sleeve can enter the air chamber through the air inlet to entrain the milk, and milk foam can be produced. When the air inlet groove A and the air inlet groove B are disconnected, the sleeve isolates the tube body from the outside air, and only the milk can be heated. This allows for quick switching of the working mode of the multifunctional steam milk stick, and the switching method is simple and quick. Adjusting the angle of the adjusting head is simpler than adjusting the position between the nozzle and the milk by moving it up and down, which improves the efficiency of the multifunctional steam milk stick.
[0024] (2) Furthermore, the width of the radial segment varies along its length. When the adjusting head is rotated, the vent connects the radial segments at different widths, thereby increasing or decreasing the air transmission efficiency between the air intake groove A and the air intake groove B. Increased transmission efficiency leads to a higher rate of air entering the cavity, and more air is drawn in when hot steam is injected into the milk, resulting in more milk foam. Conversely, less milk foam is produced. In other words, rotating the adjusting head allows for quick adjustment of the milk foaming rate, enhancing the flexibility of the multi-functional steam milk wand.
[0025] (3) Furthermore, the first notch limits the range of movement of the adjusting protrusion to limit the rotation angle of the adjusting head. By checking whether the adjusting head has rotated to the end of its stroke, the operator can determine the connection between the intake groove A and the intake groove B. Attached Figure Description
[0026] Figure 1 A three-dimensional structural schematic diagram of a multifunctional steam milk stick according to an embodiment of the present disclosure is shown.
[0027] Figure 2 A vertical cross-sectional schematic diagram of a multifunctional steam milk stick according to an embodiment of the present disclosure is shown.
[0028] Figure 3 A partially enlarged view of a multifunctional steam milk stick according to an embodiment of the present disclosure is shown at point A.
[0029] Figure 4 An exploded view of a multifunctional steam milk stick according to an embodiment of the present disclosure is shown from a low angle.
[0030] Figure 5 An exploded view from a top-down perspective is shown of a multifunctional steam milk stick according to an embodiment of the present disclosure.
[0031] Figure 6 A partially enlarged view of a multifunctional steam milk stick according to an embodiment of the present disclosure is shown at point B.
[0032] Marked in the attached diagram:
[0033] 1. Connecting block; 2. Pipe body; 21. Nozzle; 3. Air chamber; 31. Inflation hole; 4. Sleeve; 41. Adjusting cylinder; 411. First limiting hole; 412. Second limiting hole; 413. First notch; 414. First air inlet groove; 415. Second air inlet groove; 5. Adjusting sleeve; 51. Air inlet groove A; 511. Vent hole; 52. Second notch; 53. First limiting protrusion; 54. Inclined surface; 55. Cavity; 56. Arc protrusion; 6. Adjusting head; 61. First section; 611. Adjusting protrusion; 62. Step; 63. Second section; 631. Air inlet groove B; 632. Axial section; 633. Radial section; 7. Limiting sleeve; 71. Second limiting protrusion; 72. Through hole; 73. Clearance groove. Detailed Implementation
[0034] To make the objectives, features, and advantages of this utility model more apparent and understandable, please refer to the accompanying drawings. It should be noted that the structures, proportions, sizes, etc., depicted in the accompanying drawings are merely for illustrative purposes and to aid those skilled in the art in understanding and reading the content disclosed herein. They are not intended to limit the implementation conditions of this utility model and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to the size, without affecting the effects and objectives achieved by this utility model, should still fall within the scope of the technical content disclosed in this utility model.
[0035] In the description of this utility model, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0036] Figure 1 A three-dimensional structural schematic diagram of a multifunctional steam milk stick according to an embodiment of the present disclosure is shown. Figure 2 A vertical cross-sectional schematic diagram of a multifunctional steam milk stick according to an embodiment of the present disclosure is shown. Figure 3 A partially enlarged view of a multifunctional steam milk stick according to an embodiment of the present disclosure is shown at point A. Figure 4 An exploded view of a multifunctional steam milk stick according to an embodiment of this disclosure is shown from a low angle. Please refer to... Figure 1 , Figure 2 , Figure 3 and Figure 4The multi-functional steam milk wand includes a tube body 2, one end of which is connected to a steam source (not shown in the figure), and the other end has a nozzle 21. Hot steam from the steam source impacts the milk along the nozzle 21 to heat or foam the milk. A sleeve 4 is fitted onto the tube body 2. A connecting block 1 is provided on the tube body 2, and the sleeve 4 is fitted onto the connecting block 1. The nozzle 21 is located inside the sleeve 4. An air chamber 3 is formed between the sleeve 4 and the tube body 2, and an air inlet 31 is provided on the sleeve 4 to connect to the air chamber 3. An adjusting cylinder 41 is provided on the surface of the sleeve 4 around the air inlet 31. The adjusting cylinder 41 can be an integral structure with the sleeve 4, or it can be two separate components. For example, the adjusting cylinder 41 can be welded or bonded to the sleeve 4. When air is continuously and smoothly injected into the air chamber 3 through the air inlet 31, the hot steam ejected from the nozzle 21, along with the air, is drawn into the milk, heating the milk and producing milk foam. When the air inlet 31 is sealed, only the hot steam ejected from the nozzle 21 impacts the milk, heating it but not producing milk foam. An adjusting sleeve 5 is located inside the adjusting cylinder 41. An air inlet groove A51 is formed on the adjusting sleeve 5; the air inlet groove A51 connects to the air inlet 31. An adjusting head 6 extends into the adjusting cylinder 41. An air inlet groove B631 is formed on the adjusting head 6.
[0037] The sleeve 4 has an opening at one end near the nozzle 21, and the other end of the sleeve 4 is sealed to the tube body 2. The adjusting head 6 is rotated around its axis. The air inlet groove A51 and the air inlet groove B631 can be connected or disconnected. When the air inlet grooves A51 and B631 are connected, air outside the sleeve 4 can enter the air chamber 3 through the air inlet 31 to entrain the milk, thus producing milk foam. When the air inlet grooves A51 and B631 are disconnected, the sleeve 4 isolates the tube body 2 from the outside air, allowing only the milk to be heated, enabling quick switching between the working modes of the multi-functional steam milk stick. Adjusting the angle of the adjusting head 6 is simpler than adjusting the position between the nozzle 21 and the milk by moving it up and down, improving the efficiency of the multi-functional steam milk stick.
[0038] Figure 5 An exploded view from a top-down perspective is shown of a multifunctional steam milk stick according to an embodiment of the present disclosure. Figure 6 A partially enlarged view of point B is shown in the illustration of a multifunctional steam milk stick according to an embodiment of this disclosure. Please refer to... Figure 2 , Figure 5 and Figure 6 The adjusting head 6 extends into the adjusting sleeve 5. An air intake groove A51 is formed on the outer surface of the adjusting sleeve 5. A vent hole 511 is also formed on the adjusting sleeve 5. The vent hole 511 connects the air intake groove A51 and the inner surface of the adjusting sleeve 5. This facilitates communication between the air intake groove A51 and the air intake groove B631 after the adjusting sleeve 5 is fitted onto the adjusting head 6. The fitting of the adjusting sleeve 5 onto the adjusting head 6 enhances the coaxiality and connection stability between the adjusting sleeve 5 and the adjusting head 6.
[0039] Preferably, the air inlet groove B631 includes an axial segment 632 arranged along the axial direction of the adjusting head 6 and a radial segment 633 arranged radially around the axis of the adjusting head 6. The radial segment 633 connects to the air inlet groove A51. The width of the radial segment 633 varies along its length. When the adjusting head 6 is rotated, the vent 511 connects to the radial segments 633 at different widths, thereby increasing or decreasing the air transmission efficiency between the air inlet groove A51 and the air inlet groove B631. Increased transmission efficiency also increases the rate at which air enters the cavity 55, and more air is entrained when hot steam is injected into the milk, thus creating more milk foam. Conversely, reduced milk foam results in less foam. That is, rotating the adjusting head 6 can quickly...
[0040] More preferably, a gap is left between the adjusting sleeve 5 and the sleeve 4 to form a cavity 55. The cavity 55 is connected to both the air intake groove A51 and the cavity 55. When the air intake groove A51 is connected to the air intake groove B631, air enters the air chamber 3 along the air intake groove B631, the air intake groove A51, the cavity 55 and the air filling hole 31.
[0041] Please refer to Figure 2 and Figure 5 The adjusting head 6 includes a first section 61 with a large diameter and a second section 63 with a small diameter. A step 62 is formed between the first section 61 and the second section 63. The second section 63 extends into the adjusting sleeve 5. The adjusting sleeve 5 contacts the step 62 and is supported by the step 62, which enhances the axial stability of the adjusting sleeve 5.
[0042] Preferably, a second notch 52 is formed at the end of the adjusting sleeve 5 away from the sleeve 4, around the axis of the adjusting sleeve 5. When the adjusting sleeve 5 contacts the step 62 and the air inlet groove A51 connects to the air inlet groove B631, external air enters the air inlet groove B631 through the gap between the adjusting sleeve 5 and the adjusting head 6 at the position of the second notch 52. A first air inlet groove 414 is formed on the inner surface of the adjusting cylinder 41. The first air inlet groove 414 connects the second notch 52 and the end of the adjusting cylinder 41 away from the sleeve 4. This prevents the adjusting head 6, which extends into the sleeve 4, from blocking the sleeve 4, allowing air to enter the air inlet groove B631 along the first air inlet groove 414.
[0043] More preferably, a first limiting hole 411 is provided on the adjusting cylinder 41. A first limiting protrusion 53 is provided on the adjusting sleeve 5 and engages with the first limiting hole 411. Specifically, the first limiting hole 411 begins on the side of the adjusting cylinder 41, and the first limiting protrusion 53 is provided on the outer side of the adjusting sleeve 5 and engages with the first limiting hole 411 to fix the adjusting sleeve 5 and the sleeve 4 in a fixed connection. Among them, at least two first limiting holes 411 are evenly provided on the sleeve 4 around the axis of the sleeve 4, and correspondingly, at least two first limiting protrusions 53 are also provided. The two first limiting holes 411 and the two first limiting protrusions 53 cooperate to disperse stress and increase the connection strength between the adjusting cylinder 41 and the adjusting sleeve 5.
[0044] The surface of the first limiting protrusion 53 near the sleeve 4 is an inclined surface 54. The inclined surface 54 is inclined to the sleeve 4. The end of the inclined surface 54 away from the adjusting sleeve 5 is inclined to the side away from the sleeve 4, so that the adjusting sleeve 5 can be put into the adjusting cylinder 41.
[0045] In some embodiments, an arcuate protrusion 56 extends from the outer surface of the adjusting sleeve 5 along the axial direction. An arcuate groove (not shown in the figure) is formed on the upper surface of the adjusting cylinder 41 along the axial direction. The arcuate protrusion 56 is engaged in the arcuate groove, restricting the rotational movement between the adjusting sleeve 5 and the adjusting cylinder 41.
[0046] Please refer to Figure 2 and Figure 5 Around the axis of the adjusting cylinder 41, a first notch 413 is formed at the end of the adjusting head 6 near its end. An adjusting protrusion 611 on the adjusting head 6 engages with the first notch 413. The first notch 413 limits the range of movement of the adjusting protrusion 611, thereby limiting the rotation angle of the adjusting head 6. By checking whether the adjusting head 6 has rotated to the end of its stroke, the operator can determine the connection between the intake groove A51 and the intake groove B631.
[0047] Preferably, a recessed second air intake groove 415 is formed within the first notch 413. The second air intake groove 415 connects to the first air intake groove 414 to prevent the adjusting head 6 from blocking the first air intake groove 414.
[0048] More preferably, a limiting sleeve 7 is also provided, which is fitted onto the adjusting cylinder 41. A through hole 72 and a clearance groove 73 are provided at the end of the limiting sleeve 7 away from the adjusting cylinder 41. The clearance groove 73 connects to the through hole 72. The adjusting head 6 passes through the limiting sleeve 7 along the through hole 72. The adjusting protrusion 611 passes through the limiting sleeve 7 along the clearance groove 73. By rotating the adjusting head 6 passing through the limiting sleeve 7, the adjusting protrusion 611 is misaligned with the clearance groove 73. At this time, along the axial direction of the adjusting sleeve 5, the adjusting protrusion 611 interferes with the limiting sleeve 7, and the limiting sleeve 7 fixes the axial position of the adjusting head 6.
[0049] The regulating cylinder 41 has a second air inlet groove 415 on its outer side, and the limiting sleeve 7 has a second limiting protrusion 71 on its inner side. The second limiting protrusion 71 engages with the second air inlet groove 415 to fix the limiting sleeve 7 on the regulating cylinder 41. Around the axis of the regulating cylinder 41, at least two second limiting holes 412 are evenly spaced, and at least two corresponding second limiting protrusions 71 are also provided. The two limiting holes and two limiting protrusions disperse stress and improve the stability of the fixing between the regulating cylinder 41 and the limiting sleeve 7.
[0050] The specific workflow of this utility model is as follows:
[0051] When frothing milk, the movable sleeve 4 is inserted into the milk, with the nozzle 21 above the milk. The adjusting head 6 is rotated around its own axis to connect the air intake groove A51 and the air intake groove B631. The vent hole 511 is aligned with the appropriate width of the radial section 633. Then, the steam source is activated, and hot steam is ejected from the nozzle 21 into the milk along the pipe body 2. Air enters the air chamber 3 along the second air intake groove 415, the first air intake groove 414, the second notch 52, the axial section 632, the radial section 633, the vent hole 511, the air intake groove A51, the cavity 55, and the vent hole 511, and is finally drawn into the milk by the hot steam. The milk is heated and foam is produced. To increase the foam production rate, the adjusting head 6 is rotated to align the vent hole 511 with a wider position on the radial section 633. To decrease the foam production rate, the adjusting head 6 is rotated to align the vent hole 511 with a narrower position on the radial section 633.
[0052] When heating only the milk, rotate the adjusting head 6 until the air vent section and the radial section 633 are misaligned. At this point, the air inlet groove A51 and the air inlet groove B631 are disconnected. The steam ejected from the nozzle 21 impacts the milk without entraining air, thus heating the milk.
[0053] 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.
[0054] 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 multi-functional steam milk stick, characterized in that, The multi-functional steam milk stick includes: The pipe body has a steam source connected at one end and a nozzle at the other end. A sleeve is fitted onto the tube body; an air cavity is formed between the sleeve and the tube body, and an air inlet is provided on the sleeve to communicate with the air cavity; an adjusting cylinder is provided on the surface of the sleeve around the air inlet; An adjusting sleeve is disposed inside the adjusting cylinder; an air inlet groove A is formed on the adjusting sleeve; the air inlet groove A is connected to the air inlet hole; An adjusting head extends into the adjusting cylinder; an air inlet groove B is formed on the adjusting head. The sleeve has an opening at one end near the nozzle, and the other end of the sleeve is sealed to the pipe body; the adjusting head can be rotated about its axis; the air inlet groove A and the air inlet groove B are connected or disconnected.
2. The multifunctional steam milk stick as described in claim 1, characterized in that: The adjusting head extends into the adjusting sleeve; the air inlet groove A is formed on the outer surface of the adjusting sleeve; the adjusting sleeve is also provided with a vent hole; the vent hole connects the air inlet groove A and the inner surface of the adjusting sleeve.
3. The multifunctional steam milk stick as described in claim 1, characterized in that: The air intake groove B includes an axial section arranged along the axis of the adjusting head and a radial section arranged radially around the axis of the adjusting head; the radial section connects to the air intake groove A; the width of the radial section varies along its length.
4. The multifunctional steam milk stick as described in claim 1, characterized in that: The adjusting head includes a first section with a large diameter and a second section with a small diameter; a step is formed between the first section and the second section; the second section extends into the adjusting sleeve; the adjusting sleeve contacts the step.
5. The multifunctional steam milk stick as described in claim 4, characterized in that: Around the axis of the adjusting sleeve, a second notch is formed at the end of the adjusting sleeve away from the sleeve; a first air inlet groove is formed on the inner surface of the adjusting sleeve; the first air inlet groove connects the second notch and the end of the adjusting sleeve away from the sleeve.
6. The multifunctional steam milk stick as described in claim 5, characterized in that: Around the axis of the adjusting cylinder, a first notch is formed at the end of the adjusting cylinder near the adjusting head; the adjusting head is provided with an adjusting protrusion that engages with the first notch.
7. The multifunctional steam milk stick as described in claim 6, characterized in that: A limiting sleeve is also provided, which is fitted onto the adjusting cylinder; a through hole and a relief groove are provided at the end of the limiting sleeve away from the adjusting cylinder; the relief groove communicates with the through hole; the adjusting head passes through the limiting sleeve along the through hole; the adjusting protrusion passes through the limiting sleeve along the relief groove.
8. The multifunctional steam milk stick as described in claim 6, characterized in that: A second air intake slot is formed within the first gap; the second air intake slot is connected to the first air intake slot.
9. The multifunctional steam milk stick as described in claim 1, characterized in that: A gap is left between the adjusting sleeve and the sleeve to form a cavity; the cavity is connected to both the air intake groove A and the cavity.
10. The multifunctional steam milk stick as described in claim 1, characterized in that: The adjusting cylinder has a first limiting hole; the adjusting sleeve has a first limiting protrusion that engages with the first limiting hole.