Steam rod and beverage equipment

Abstract

The invention discloses a steam rod for making drinks, which comprises a nozzle body provided with an air inlet cavity, an air inlet communicated with the air inlet cavity and an air injection flow channel communicated with the air inlet cavity, the air inlet cavity is provided with a nozzle axis extending along a first direction, and an outlet, far away from the air inlet cavity, of the air injection flow channel is an air injection outlet; the air injection outlet is provided with an air injection center line extending in the second direction. The steam pipe is arranged at the air inlet and used for being communicated with a steam generator; on a reference plane which passes through an air injection center point of the air injection outlet and is perpendicular to the axis of the nozzle, an included angle is formed between a connecting line of a projection point of the axis of the nozzle on the reference plane and the air injection center point and a projection line of the air injection center line on the reference plane, and an included angle is formed between the air injection center line and the reference plane. The invention further discloses beverage equipment provided with the steam rod. According to the technical scheme, the steam rod can achieve foaming through simpler operation, and the use threshold of the steam rod is lowered.

Description

Technical Field

[0001] This invention relates to the field of beverage equipment technology, and in particular to a steam wand and beverage equipment. Background Technology

[0002] Milk-based coffees are becoming increasingly popular, as the rich, creamy milk foam enhances the flavor and allows for latte art. Steam frothing is one of the most common methods used in semi-automatic coffee machines, characterized by its dense foam and ease of operation. A well-defined vortex during frothing improves the frothing effect and breaks up large air bubbles formed during the process; a good vortex is essential for creating a rich, glossy milk foam.

[0003] However, to create a good vortex during the whipping process, it is necessary to accurately control the position of the frothing pitcher and the tilt angle of the steam wand. This requires a high level of skill and experience from the operator, making the use of the steam wand quite difficult. Summary of the Invention

[0004] The main objective of this invention is to propose a steam rod that aims to lower the barrier to entry for using steam rods.

[0005] To achieve the above objectives, the present invention provides a steam bar for making beverages, the steam bar comprising:

[0006] The nozzle body includes an air inlet chamber, an air inlet communicating with the air inlet chamber, and a jet flow channel communicating with the air inlet chamber. The air inlet chamber has a nozzle axis extending along a first direction, and the outlet of the jet flow channel away from the air inlet chamber is a jet outlet. The jet outlet has a jet centerline extending along a second direction.

[0007] A steam pipe is provided at the air inlet for connecting to the steam generator;

[0008] On a reference plane passing through the jet center point of the jet outlet and perpendicular to the nozzle axis, the line connecting the projection point of the nozzle axis on the reference plane and the jet center point forms an angle with the projection line of the jet center line on the reference plane, and the jet center line forms an angle with the reference plane.

[0009] Optionally, on the reference plane, the distance from the projection point of the nozzle axis to the extension of the projection line of the jet centerline is greater than or equal to 3 mm.

[0010] Optionally, on the reference plane, the distance from the projection point of the nozzle axis to the extension of the projection line of the jet centerline is less than or equal to 8 mm.

[0011] Optionally, the outer diameter of the nozzle body is greater than or equal to 6 mm and less than or equal to 24 mm.

[0012] Optionally, the inner diameter of the air intake chamber is greater than or equal to 4 mm and less than or equal to 12 mm.

[0013] Optionally, the wall thickness of the nozzle body at the opening location of the jet flow channel is greater than or equal to 2 mm and less than or equal to 12 mm.

[0014] Optionally, when the distance from the projection point of the nozzle axis to the extension of the projection line of the jet centerline on the reference plane is greater than or equal to 3.5 mm and less than or equal to 4.5 mm, the outer diameter of the nozzle body is greater than or equal to 12 mm.

[0015] Optionally, on the reference plane, when the distance from the projection point of the nozzle axis to the extension of the projection line of the jet center line is greater than 4.5 mm and less than or equal to 5.5 mm, the outer diameter of the nozzle body is greater than or equal to 16 mm.

[0016] Optionally, when the distance from the projection point of the nozzle axis to the extension of the projection line of the jet centerline on the reference plane is greater than 5.5 mm and less than or equal to 6.5 mm, the outer diameter of the nozzle body is greater than or equal to 20 mm.

[0017] Optionally, the angle between the jet centerline and the reference plane is greater than or equal to 20° and less than or equal to 70°.

[0018] Optionally, the angle between the jet centerline and the reference plane is greater than or equal to 30° and less than or equal to 60°.

[0019] Optionally, the outer surface of the nozzle body includes a cylindrical section and a lower section, the cylindrical section having a first edge away from the air inlet, the lower section being connected to the first edge, and the jet outlet being located on the cylindrical section or at the junction of the cylindrical section and the lower section.

[0020] Optionally, the cylindrical section also has a second edge near the air inlet, and the distance between the jet outlet and the second edge is greater than or equal to 5 mm.

[0021] Optionally, the connection between the jet flow channel and the air intake chamber is a jet inlet, and the height difference between the jet inlet and the jet outlet along the nozzle axis is greater than or equal to 1 mm and less than or equal to 12 mm.

[0022] Optionally, the length of the jet channel is greater than or equal to 2 mm and less than or equal to 15 mm.

[0023] Optionally, the jet flow channels are provided in multiple ways, and the multiple jet flow channels are arranged circumferentially around the axis of the nozzle.

[0024] Optionally, the connection between the jet flow channel and the air intake chamber is a jet inlet, and multiple jet inlets have the same height along the nozzle axis.

[0025] Optionally, the multiple jet outlets are at the same height along the nozzle axis.

[0026] Optionally, at least a portion of the jet flow path extends along a curve.

[0027] Optionally, the air intake chamber is provided with a guide protrusion facing into the chamber, and the connection between the jet flow channel and the air intake chamber is a jet inlet, with the jet inlet located next to the guide protrusion.

[0028] Optionally, the nozzle body is further provided with an auxiliary jet flow channel communicating with the air intake chamber, and the auxiliary jet flow channel extends along the first direction.

[0029] Optionally, a temperature sensor is installed on the nozzle body. The temperature sensor includes a temperature sensing part and a wire connected to the temperature sensing part. The steam pipe has a first channel and a second channel extending in parallel. The first channel is connected to the air inlet chamber, and the second channel is isolated from the air inlet chamber. The wire passes through the second channel.

[0030] Optionally, at least a portion of the inner diameter of the air intake chamber is larger than the inner diameter of the steam pipe.

[0031] Optionally, the nozzle body has an opening, the air inlet chamber is connected to the opening, and the nozzle body is fitted onto the outer surface of the steam pipe through the opening.

[0032] Optionally, the steam pipe includes a pipe body and an installation head integrally connected to the pipe body. The outer diameter of the installation head is larger than the outer diameter of the pipe body, and a connecting cavity is formed inside the installation head. The nozzle body has an opening, and the air inlet cavity communicates with the opening. The installation head is sleeved on the outer peripheral surface of the opening end of the nozzle body through the connecting cavity.

[0033] Optionally, the nozzle body includes a first nozzle component and a second nozzle component connected together, the jet flow channel is disposed in the second nozzle component, and the first nozzle component is connected to the steam pipe.

[0034] The present invention also proposes a beverage device, including the aforementioned steam wand.

[0035] In the technical solution of this invention, on a reference plane passing through the jet center point of the jet outlet and perpendicular to the nozzle axis, the line connecting the projection point of the nozzle axis on the reference plane and the jet center point forms an angle with the projection line of the jet center line on the reference plane, and the jet center line forms an angle with the reference plane. This ensures that the steam ejected from the jet outlet has a tangential component of a circle centered on the projection point of the nozzle axis. This tangential component allows the steam to drive the liquid to achieve a vortex-like flow. Furthermore, when foaming, only the nozzle body of the steam rod needs to be inserted into the center or near the center of the liquid to be foamed to create a certain angle between the jet outlet and the bottom of the frothing pitcher, thereby forming a vortex-like flow and causing the liquid to tumble inside and outside the pitcher, achieving a good foaming effect. In other words, the steam rod provided by this invention can achieve foaming through simpler operation, thus lowering the barrier to entry for using the steam rod. Attached Figure Description

[0036] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0037] Figure 1 This is a top view schematic diagram illustrating an application scenario of an embodiment of the steam rod of the present invention;

[0038] Figure 2 This is a side view schematic diagram illustrating an application scenario of an embodiment of the steam rod of the present invention;

[0039] Figure 3 This is a schematic diagram of the structure of the steam rod according to the first embodiment of the present invention;

[0040] Figure 4 for Figure 3 Side view schematic diagram of the application scenario of the steam rod;

[0041] Figure 5 for Figure 3 A bottom view of the nozzle body of the steam rod;

[0042] Figure 6 This is a bottom view of the nozzle body of the second embodiment of the steam rod of the present invention;

[0043] Figure 7 This is a side view of the nozzle body of the third embodiment of the steam rod of the present invention;

[0044] Figure 8 for Figure 7A bottom view of the nozzle body of the steam rod;

[0045] Figure 9 This is a bottom view of the nozzle body of the fourth embodiment of the steam rod of the present invention;

[0046] Figure 10 This is a side view of the nozzle body of the fifth embodiment of the steam rod of the present invention;

[0047] Figure 11 This is a side view of the nozzle body of the sixth embodiment of the steam rod of the present invention;

[0048] Figure 12 This is a schematic diagram of the explosion of the steam rod according to the seventh embodiment of the present invention;

[0049] Figure 13 This is a schematic diagram of the structure of the steam rod according to the eighth embodiment of the present invention;

[0050] Figure 14 This is a schematic diagram of the structure of the steam rod according to the ninth embodiment of the present invention;

[0051] Figure 15 This is a schematic diagram of the structure of the steam rod according to the tenth embodiment of the present invention;

[0052] Figure 16 This is a schematic diagram of the structure of the steam rod according to the eleventh embodiment of the present invention;

[0053] Figure 17 This is a schematic diagram of the structure of the steam rod according to the twelfth embodiment of the present invention.

[0054] Explanation of icon numbers:

[0055] 10. Nozzle body; 11. Air jet channel; 11c. Auxiliary air jet channel; 111. Air jet outlet; 12. Inlet chamber; 121. Air inlet; 122. Guide protrusion; 13. Nozzle; 14. Extension pipe; 15. Positioning groove; 10a. First sub-cavity; 10b. Second sub-cavity; 101. First nozzle body; 102. Second nozzle body; 20. Steam pipe; 21. Pipe body; 22. Mounting head; 221. Connecting cavity; 222. Transition cavity; 23. Positioning step; 20a. First channel; 20b. Second channel; 201. Inner pipe; 202. Outer pipe; 30. Temperature sensor; 31. Temperature sensing part; 32. Wire; 41. First seal; 42. Second seal; 421. Limiting protrusion; 100a. Cylindrical section; 100b. Lower section; 112. Air jet inlet

[0056] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0057] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0058] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0059] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0060] This invention proposes a steam rod.

[0061] Reference Figures 1 to 5 In one embodiment of the present invention, the steam rod includes:

[0062] The nozzle body 10 includes an air inlet chamber 12, an air inlet 121 communicating with the air inlet chamber 12, and a jet flow channel 11 communicating with the air inlet chamber 12. The air inlet chamber 12 has a nozzle axis extending in a first direction. The outlet of the jet flow channel 11 away from the air inlet chamber 12 is a jet outlet 111. The jet outlet 111 has a jet centerline extending in a second direction (i.e., the steam jet exiting the jet outlet 111 is ejected in the second direction).

[0063] A steam pipe 20 is provided at the air inlet 121 for connecting to the steam generator;

[0064] On a reference plane passing through the jet center point of the jet outlet 111 and perpendicular to the nozzle axis, the line connecting the projection point of the nozzle axis on the reference plane and the jet center point forms an angle α with the projection line of the jet center line on the reference plane, and the jet center line forms an angle with the reference plane.

[0065] In this embodiment, on a reference plane passing through the jet center point of the jet outlet 111 and perpendicular to the nozzle axis, the line connecting the projection point of the nozzle axis on the reference plane and the jet center point forms an angle α with the projection line of the jet center line on the reference plane. This ensures that the steam ejected from the jet outlet 111 has a tangential component of a circle centered on the projection point of the nozzle axis. This tangential component allows the steam to drive the liquid in a vortex-like flow. Furthermore, the jet center line forms an angle β with the reference plane. Therefore, when frothing, simply extending the nozzle body 10 of the steam rod vertically into the center or near the center of the liquid to be frothed allows the jet outlet 111 to tilt towards the bottom of the frothing pitcher, creating a vortex-like flow and tumbling the liquid inside and outside the pitcher, thus achieving a good frothing effect. In other words, the steam rod provided by this invention allows for frothing through simpler operation, thereby lowering the barrier to entry for using the steam rod.

[0066] Optionally, on the reference plane, the distance L from the projection point of the nozzle axis to the extension of the projection line of the jet centerline is greater than or equal to 3 mm. It can be understood that, given a fixed radius for the circles containing the centers of multiple jet outlets, the greater the distance L, i.e., the closer the jet outlet's spray direction is to the tangential direction, the stronger the steam's ability to drive the liquid to generate a vortex. A good vortex effect is beneficial for achieving foaming. In this embodiment, L ≥ 3 mm to ensure a good vortex effect generated by the steam rod.

[0067] Further optionally, on the reference plane, the distance from the projection point of the nozzle axis to the extension of the projection line of the jet centerline is less than or equal to 8 mm. It is understood that while a larger distance L can produce a better vortex effect, an excessively strong vortex effect can affect the foaming effect. This is because: firstly, a larger distance L typically requires a larger nozzle body 10 with a larger outer diameter. A larger nozzle body 10 increases cost and occupies more liquid surface space, affecting air intake during foaming and thus impacting the foaming effect; secondly, excessively intense vortexing results in larger bubbles, which affects the foaming effect and can also cause splashing, negatively impacting the foaming experience. In this embodiment, L ≤ 8 mm to ensure good air intake during foaming with the steam rod, reduce the probability of generating large bubbles, and balance product cost and foaming experience.

[0068] Refer to the table below, which compares the foaming effects of different nozzle bodies 10 at different distances L:

[0069]

[0070]

[0071] As shown in the table above, when the distance L is less than or equal to 2mm, it is difficult to achieve an effective vortex, resulting in mostly large bubbles that fail to create a fluffy texture and thus hinder latte art. Conversely, when the distance L is greater than or equal to 9mm, vortex splashing occurs, affecting the foaming experience, and the resulting bubbles are also mostly large, failing to achieve a fluffy texture and thus hindering latte art. In summary, a distance L greater than or equal to 3mm and less than or equal to 8mm strikes a good balance between a good fluffy texture, lower steam wand costs, and a better foaming experience.

[0072] Optionally, the outer diameter D1 of the nozzle body 10 (see...) Figure 17 The outer diameter D1 of the nozzle body 10 is less than or equal to 24 mm. This is to avoid excessive cost of the nozzle body 10 and to prevent the nozzle body 10 from occupying too much liquid surface space, thereby reducing the impact on the air intake effect during foaming and ensuring good foaming effect. Furthermore, the outer diameter D1 of the nozzle body 10 is greater than or equal to 6 mm. In this way, the nozzle body 10 has a certain volume, which is beneficial for the opening of the air intake chamber 12.

[0073] Optionally, the inner diameter D2 of the air intake chamber 12 (see...) Figure 17 The air intake chamber 12 has a diameter of 4 mm or greater to avoid it being too small. It is understood that if the air intake chamber 12 is too small, it may restrict the steam flow, making the steam insufficient to quickly heat and stir the milk, resulting in insufficient foaming and uneven texture. Furthermore, the inner diameter D2 of the air intake chamber 12 is less than or equal to 12 mm. It is understood that if the air intake chamber 12 is too large, too much steam will enter the air intake chamber 12 per unit time, resulting in an excessively high steam flow. An excessively high steam flow may cause the milk foam to be too loose and coarse, making it difficult to form the desired fine structure, which will affect the final taste and appearance of the beverage.

[0074] Optionally, the wall thickness ΔD of the nozzle body 10 at the opening position of the jet flow channel 11 (see...) Figure 17The thickness of the nozzle body 10 is greater than or equal to 2 mm, thus providing a certain thickness that facilitates the opening of the jet flow channel 11. Furthermore, the wall thickness ΔD of the nozzle body 10 at the opening position of the jet flow channel 11 is less than or equal to 12 mm to avoid material waste caused by excessive wall thickness, thereby avoiding excessive cost of the nozzle body 10.

[0075] Refer to the table below, which shows the selectable inner and outer diameters of the nozzle body 10:

[0076] Inner diameter / mm 4 6 8 10 12 outer diameter / mm 6-10 9-14 12-18 14-22 16-24

[0077] In one embodiment, the outer diameter D1 of the nozzle body 10 is 17 mm, the inner diameter of the air inlet chamber 12 is 10D2 mm, and its wall thickness ΔD is 7 mm. In this way, the low cost of the nozzle body 10 can be taken into account, the ease of opening the air jet channel 11 can be made, and the milk foam can be made finely.

[0078] Refer to the table below, which shows the comparison of foaming effects at different distances L on different nozzle bodies 10:

[0079]

[0080] As can be seen from the table above, when the distance L is between 4mm and 6mm, and the outer diameter of the nozzle body 10 is greater than 24mm, the vortex effect decreases, and the foaming rate and quality of the bubbles also decrease. Alternatively, when the distance L is greater than or equal to 3.5mm and less than or equal to 4.5mm, the outer diameter of the nozzle body 10 should be greater than or equal to 12mm to improve the foaming rate and quality of the bubbles. Alternatively, when the distance L is greater than 4.5mm and less than or equal to 5.5mm, the outer diameter of the nozzle body 10 should be greater than or equal to 16mm to further improve the foaming rate and quality of the bubbles. Alternatively, when the distance L is greater than 5.5mm and less than or equal to 6.5mm, the outer diameter of the nozzle body 10 should be greater than or equal to 20mm to further improve the foaming rate and quality of the bubbles.

[0081] Furthermore, the jet centerline forms an angle β with the reference plane (see...). Figure 2 and Figure 3 With this configuration, the user only needs to vertically insert the steam rod to a position close to the liquid surface to create a certain angle between the jet outlet 111 and the bottom of the frothing pitcher (making the foaming operation simpler). This allows the steam ejected from the jet outlet 111 to be tilted relative to the liquid surface, so that the steam jet can create a local negative pressure cavity on the liquid surface and entrain outside air, thereby helping the liquid to produce better air intake and foaming effects.

[0082] It is worth noting that when the included angle β is closer to 90°, the liquid surface turbulence formed by the steam jet is weaker, the air entrainment effect is poor, and the sizing effect is not good; while when the included angle β is closer to 0°, the steam jet is prone to liquid overflow and splashing. To balance good sizing effect with reducing liquid overflow and splashing, the included angle β can be selected as: 20°≤β≤70°. To better balance good sizing effect with further reducing liquid overflow and splashing, the included angle β can be further selected as: 30°≤β≤60°.

[0083] In this invention, the connection between the jet flow channel 11 and the air intake chamber 12 is the jet inlet 112 (see...). Figure 17 It can be understood that the smaller the height difference between the jet inlet 112 and the jet outlet 111 along the nozzle axis, the smaller the included angle β; the larger the height difference between the jet inlet 112 and the jet outlet 111 along the nozzle axis, the larger the included angle β. Optionally, the height difference between the jet inlet 112 and the jet outlet 111 along the nozzle axis is greater than or equal to 1 mm and less than or equal to 12 mm. In this way, the included angle β is moderate, so as to balance good sponging effect and reduce the occurrence of liquid overflow and splashing. In one embodiment, the height difference between the jet inlet 112 and the jet outlet 111 along the nozzle axis is 8 mm. In this way, the sponging effect is better and there is no liquid overflow and splashing.

[0084] It is understood that if the jet channel 11 is too short, the steam guiding effect will be poor; if the jet channel 11 is too long, it will affect the steam flow rate and increase the risk of channel blockage, and will also lead to difficulties in channel processing. Optionally, the length of the jet channel 11 is greater than or equal to 2 mm and less than or equal to 15 mm. In this way, the length of the jet channel 11 is moderate, which can balance a good steam guiding effect and reduce the probability of channel blockage. In one embodiment, the length of the jet channel 11 is 9 mm, which provides a better steam guiding effect, and the channel remains unblocked even after long-term use.

[0085] Furthermore, referring to Figure 17The outer surface of the nozzle body 10 includes a cylindrical section 100a and a lower section 100b. The cylindrical section 100a has a first edge away from the air inlet 121, and the lower section 100b is connected to the first edge. The air outlet 111 is located on the cylindrical section 100a or at the junction of the cylindrical section 100a and the lower section 100b, which facilitates air entrainment during the foaming process to achieve continuous foaming. It is understood that when the liquid surface is a downwardly tapered cone or curved surface, air entry into the channel will be blocked, preventing further foaming; while when the liquid surface is an upwardly tapered cone or curved surface, air tends to drift upwards along the slope rather than be entrained downwards, thus also preventing further foaming. In this embodiment, the lower section 100b is configured as a downwardly tapered cone; however, this design is not limited to this. In other embodiments, the lower section can also be configured as a downwardly tapered curved surface, or the lower section can also be configured as a plane. It is worth mentioning that, in this embodiment, the steam pipe 20 includes an outer pipe 202 and an inner pipe 201 disposed inside the outer pipe 202. The outer pipe 202 is connected and fixed to the nozzle body 10, and the inner pipe 201 is connected to the air inlet chamber 12. Steam enters the air inlet chamber 12 from the inner pipe 201. The inner pipe 201 and the outer pipe 202 are arranged at intervals to isolate the temperature of the steam, prevent the outer pipe 202 from getting too hot to touch, and improve the user experience.

[0086] In this embodiment, the cylindrical section 100a also has a second edge near the air inlet. Further, there is a certain distance between the jet outlet 111 and the second edge to ensure that after the nozzle body 10 is inserted into the foaming liquid, there is a cylindrical surface of a certain height above the jet outlet 111. It is understood that during the foaming process, the liquid level will continuously rise as foaming increases. Once the liquid level reaches an inward or outward conical or curved surface, foaming can no longer continue. This embodiment ensures that there is a cylindrical surface of a certain height above the jet outlet 111, so that even if the liquid level rises, it remains on the cylindrical surface and does not detach from it, thus maintaining continuous foaming. Optionally, the distance H between the jet outlet 111 and the second edge is greater than or equal to 5 mm. In one embodiment, the distance H between the jet outlet 111 and the second edge is 12 mm. Thus, even after a large number of bubbles are produced, the liquid level will not detach from the cylindrical surface, thereby maintaining continuous foaming.

[0087] Refer to the table below, which shows the comparison of foaming effects at different distances H on different nozzle bodies 10:

[0088] Distance H / mm Location of jet outlet Bubble thickness 2 Cylindrical section Poor 4 Cylindrical section generally 5 Cylindrical section good 8 Cylindrical section excellent 8 The junction between the cylindrical section and the lower section excellent / The lower segment gradually narrows downwards Poor / The upper section gradually narrows upwards Poor

[0089] In the two experiments where the jet outlet was located in the lower and upper sections, the height of the cylindrical section of the nozzle body was 8 mm.

[0090] Furthermore, referring to Figure 1 and Figure 5 The invention comprises multiple jet channels 11, spaced circumferentially around the nozzle axis. This arrangement allows for more efficient formation of higher-quality vortices and a larger negative pressure chamber for air entrainment within the drawing cylinder, ultimately resulting in finer bubbles. Furthermore, the multiple jet channels 11 ensure that the horizontal components of the reverse thrust of the steam jets ejected from each channel cancel each other out or nearly cancel each other out, thus eliminating the need for the user to consider the impact of the steam rod's horizontal displacement on the drawing process. Alternatively, a single jet channel 11 can be used. In this case, additional force is required to limit the translation of the steam rod during the drawing process. This additional force can be applied by the user or provided by fixing the steam rod in one location using a fixed structure. The user simply needs to hold the drawing cylinder in conjunction with the steam rod. Alternatively, the plurality of jet channels 11 are evenly spaced in the circumferential direction around the nozzle axis to completely counteract the horizontal components of each reverse thrust and make the liquid bubbles at each position more uniform.

[0091] It is understood that if the number of jet channels 11 is too small, the foaming effect of the liquid bubbles will be weak; if the number of jet channels 11 is too large, the processing will be more difficult. In this embodiment, in order to balance good foaming effect and easy processing, the number of jet channels 11 can be selected as 3 or 4.

[0092] Reference Figure 3 Optionally, the multiple jet inlets 112 are at the same height along the nozzle axis, that is, the multiple jet inlets 112 are located on the same plane. In this way, the air intake time of each jet channel 11 tends to be consistent, which is beneficial to the uniform jetting of the multiple jet channels 11.

[0093] Optionally, the multiple jet outlets 111 are at the same height along the nozzle axis, that is, the multiple jet outlets 111 are located on the same plane. In this way, the jet height of the multiple jet outlets 111 is consistent. When the user extends the steam rod vertically into the liquid surface, each jet outlet 111 tends to jet airflow toward the liquid surface at the same time, which is conducive to the formation of vortex.

[0094] Reference Figure 6 Furthermore, at least a portion of the jet flow channel 11 extends along a curve. It can be understood that for the portion extending along the curve, the deflection angle gradually increases in the direction from the inside to the outside, which is conducive to forming a larger included angle α at the jet outlet 111.

[0095] Optionally, in the direction away from the nozzle axis, the curvature of the portion of the jet channel 11 extending along the curve gradually increases; it can be understood that the greater the curvature, the greater the degree of bending, the faster the deflection angle increases, which is more conducive to achieving a larger included angle α.

[0096] Optionally, the jet flow channel 11 extends entirely along a curve (e.g., Figure 6 However, this design is not limited to this. In other embodiments, the jet channel 11 may also extend in a straight line in part.

[0097] In this invention, the nozzle body 10 is provided with a nozzle hole 13, and the jet flow channel 11 includes the channel of the nozzle hole 13.

[0098] In one embodiment, the jet flow path 11 may comprise only the channels of the nozzle 13, in which case the channels of the nozzle 13 extend at least partially along a curve and generally extend entirely along a curve (e.g., Figure 6 This reduces the wall thickness of the nozzle body 10 required to achieve a larger included angle α, thereby reducing material and processing costs.

[0099] However, this design is not limited to this. In another embodiment, refer to Figures 7 to 9 The steam rod may further include an extension pipe 14 disposed on the outer wall of the nozzle body 10 and communicating with the nozzle orifice 13, and the jet flow channel 11 further includes the pipe of the extension pipe 14. It is understood that the extension pipe 14 allows the jet flow channel 11 to be longer, thereby making it easier to achieve the desired orientation of the jet outlet 111, because changing the direction of the extension pipe 14 is easier than changing the direction of the channel within the wall of the nozzle body 10. It should be noted that in this embodiment, at least a portion of the nozzle orifice 13 can be configured to extend along a curve (e.g., Figure 9 Alternatively, at least a portion of the extension pipe 14 can be configured to extend along a curve (e.g., Figure 8 Alternatively, at least a portion of the nozzle 13 channel and at least a portion of the extension pipe 14 can be configured to extend along a curve.

[0100] Furthermore, referring to Figure 10 The air intake chamber 12 is provided with a guide protrusion 122 facing into the chamber, and the jet inlet 112 of the jet channel 11 is located next to the guide protrusion 122. In this way, the steam entering the air intake chamber 12 can be guided to the jet inlet 112 of the jet channel 11 through the circumferential surface of the guide protrusion 122, making the airflow in the steam rod smoother, which is conducive to forming a steam jet with stronger kinetic energy at the jet outlet 111, improving the foaming success rate and increasing the foaming effect.

[0101] Optionally, the cross-sectional area of ​​at least the free end of the guide protrusion 122 gradually increases in the first direction, thereby forming a guide slope for guiding the jet inlet 112 at least at the free end, achieving a better guiding effect. (Refer to...) Figure 10 In this embodiment, the guide protrusion 122 is cone-shaped, and the tip of the cone can effectively divert steam. However, this design is not limited to this; in other embodiments, the guide protrusion 122 may also be partially spherical or frustum-shaped.

[0102] When multiple jet channels 11 are provided, the multiple jet channels 11 are spaced apart in the circumferential direction around the guide protrusion 122, so as to better utilize the airflow guided by the guide protrusion 122 in various directions, so that the airflow can flow smoothly into each jet channel 11.

[0103] Optionally, the inner cavity surface of the air intake chamber 12 also includes a cavity side surface adjacent to the bottom surface of the cavity, and the inner flow channel is located on the cavity side surface near the bottom surface of the cavity, so that the jet flow channel 11 extends outward toward the side of the steam rod, thereby making the airflow flow more smoothly toward the periphery of the steam rod and more conducive to the formation of a vortex effect.

[0104] Furthermore, referring to Figure 11 The nozzle body 10 is also provided with an auxiliary jet channel 11c that communicates with the air inlet chamber 12. The auxiliary jet channel 11c extends along the first direction. In this way, when the steam rod is vertically inserted into the cup of the frothing cylinder, a jet of steam can be formed perpendicular to the bottom of the cup of the frothing cylinder through the auxiliary jet channel 11c. This can enhance the disturbance effect of the vortex center or near the vortex center of the liquid to be foamed, thereby improving the bubble formation efficiency.

[0105] Optionally, the centerline of the auxiliary jet channel 11c coincides with the nozzle axis to enhance the disturbance effect on the vortex center of the liquid to be foamed. However, this design is not limited to this; in other embodiments, the centerline of the auxiliary jet channel 11c may also be offset from the nozzle axis. It should also be noted that there may be only one auxiliary jet channel 11c or multiple auxiliary jet channels 11c to further enhance the disturbance effect on or near the vortex center.

[0106] Furthermore, when the first direction is vertically downward, the auxiliary jet channel 11c connects to the lowest point of the air intake chamber 12, so that the auxiliary jet channel 11c can also facilitate the drainage of residual water in the air intake chamber 12, thereby reducing the probability of bacterial growth in the air intake chamber 12. Optionally, the auxiliary jet channel 11c has an inner channel opening that communicates with the air intake chamber 12. When the first direction is vertically downward, the inner surface of the air intake chamber 12 is gradually inclined downward in the direction towards the inner channel opening, so as to further facilitate the flow of residual water to the auxiliary jet channel 11c, thereby making it easier to drain the residual water.

[0107] The inner diameter of the steam pipe 20 is a first inner diameter, and at least a portion of the inner diameter of the air inlet chamber 12 is a second inner diameter. Optionally, the second inner diameter is larger than the first inner diameter, that is, the cross-sectional area of ​​the air inlet chamber 12 is larger than the cross-sectional area of ​​the steam pipe 20. This facilitates the opening of multiple jet channels 11 and allows the distance between the jet outlet 111 and the nozzle axis to be greater, thus promoting the formation of a larger vortex effect. Furthermore, it facilitates the buffering and pressurization of steam by the air inlet chamber 12, also contributing to the formation of a larger vortex effect.

[0108] Reference Figure 12 In one embodiment, the nozzle body 10 has an opening, and the air inlet chamber 12 communicates with the opening. The nozzle body 10 is fitted onto the outer pipe 202 surface of the steam pipe 20 through the opening. It can be understood that the wall of the steam pipe 20 has a certain thickness. By fitting the opening onto the outer pipe surface of the steam pipe 20, the inner diameter of the air inlet chamber 12 can be directly increased using the wall thickness of the steam pipe 20. Thus, the structure of the nozzle body 10 is relatively simple and easy to manufacture.

[0109] Optionally, the opening of the nozzle body 10 is detachably connected to the steam pipe 20 to facilitate maintenance or replacement of the jet structure if it is blocked or damaged. Alternatively, the opening of the nozzle body 10 and the steam pipe 20 can also be connected via, but not limited to, a riveting or adhesive structure. Further optionally, the opening of the nozzle body 10 and the steam pipe 20 are detachably connected via a threaded pair. Specifically, the opening of the nozzle body 10 has an internal thread, and the outer tube 202 surface of the steam pipe 20 has an external thread, achieving a detachable connection through the engagement of the internal and external threads. In particular, the threaded pair structure also has a certain degree of sealing capability. Of course, a sealing structure can also be optionally provided between the opening of the nozzle body 10 and the steam pipe 20. Additionally, the opening of the nozzle body 10 and the steam pipe 20 can also be detachably connected via, but not limited to, a snap-fit ​​structure.

[0110] Optionally, a positioning structure is provided between the opening of the nozzle body 10 and the steam pipe 20 to limit the depth of the steam pipe 20 extending into the air intake chamber 12, thereby ensuring a larger volume of the air intake chamber 12 and thus ensuring a better buffering and pressurization effect. Further optionally, the positioning structure includes a positioning groove 15 located around the periphery of the opening of the nozzle body 10 and a positioning step 23 located on the outer pipe 202 surface of the steam pipe 20, so that the depth of the steam pipe 20 extending into the air intake chamber 12 is limited by the cooperation of the positioning groove 15 and the positioning step 23.

[0111] Reference Figure 13 In another embodiment, the steam pipe 20 includes a pipe body 21 with an inner diameter equal to the first inner diameter, and a mounting head 22 integrally connected to the pipe body 21. The outer diameter of the mounting head 22 is larger than the outer diameter of the pipe body 21, and a connecting cavity 221 is formed within the mounting head 22. The inner diameter of the connecting cavity 221 is a third inner diameter, which is larger than the second inner diameter. The nozzle body 10 has an opening, and the air inlet cavity 12 communicates with the opening. The mounting head 22 is fitted onto the outer circumferential surface of the opening end of the nozzle body 10 through the connecting cavity 221. In this embodiment, by adding a mounting head 22 to the end of the pipe body 21 of the steam pipe 20, the connection with the nozzle body 10 is achieved through the mounting head 22. The mounting head 22 is relatively thick, which facilitates a reliable connection with the nozzle body 10, which is also relatively thick. Furthermore, the open-ended nozzle body 10 is easy to manufacture. In this embodiment, optionally, the tube body 21 and the mounting head 22 are integrally formed. However, this design is not limited to this; in other embodiments, the mounting head 22 and the tube body 21 may also be welded together, but not limited to this.

[0112] Optionally, a transition cavity 222 is also formed inside the mounting head 22. One end of the transition cavity 222 is connected to the pipe body 21, and the other end is connected to the connecting cavity 221. The cross-sectional area of ​​the transition cavity 222 is gradually expanded in the direction close to the connecting cavity 221, so that the steam flowing from the pipe body 21 can diffuse to the air inlet cavity 12 through the transition cavity 222, that is, the steam can enter the air inlet cavity 12 more smoothly.

[0113] Optionally, the open end of the nozzle body 10 is detachably connected to the connecting cavity 221 of the mounting head 22 to facilitate maintenance or replacement of the air jet structure. Alternatively, the open end of the nozzle body 10 and the connecting cavity 221 of the mounting head 22 can also be connected via, but not limited to, a riveting or adhesive structure. Further, the open end of the nozzle body 10 and the connecting cavity 221 of the mounting head 22 can be detachably connected via a threaded pair. Specifically, the outer circumferential surface of the open end of the nozzle body 10 has an external thread, and the side surface of the connecting cavity 221 of the mounting head 22 has an internal thread. The detachable connection is achieved through the engagement of the external and internal threads. In particular, the threaded pair structure also has a certain degree of sealing capability. A sealing structure can also be optionally provided between the open end of the nozzle body 10 and the connecting cavity 221 of the mounting head 22. Additionally, the open end of the nozzle body 10 and the connecting cavity 221 of the mounting head 22 can also be detachably connected via, but not limited to, a snap-fit ​​structure.

[0114] Reference Figure 14 In another embodiment, the nozzle body 10 includes a first nozzle segment 101 and a second nozzle segment 102 connected to each other. The air inlet chamber 12 includes a first sub-chamber 10a disposed within the first nozzle segment 101 and a second sub-chamber 10b disposed within the second nozzle segment 102. The inner diameter of the second sub-chamber 10b is the second inner diameter. The air jet channels 11 are all disposed within the second nozzle segment 102. The inner diameter of the first sub-chamber 10a is a fourth inner diameter, which is smaller than the second inner diameter. The second sub-chamber 10b communicates with the steam pipe 20 through the first sub-chamber 10a. This embodiment, by dividing the nozzle body 10 with a larger inner cavity into at least two spliced ​​parts, facilitates the processing and shaping of the larger inner cavity.

[0115] Optionally, the inner diameter of the portion of the first sub-cavity 10a near the second sub-cavity 10b is gradually increased in the direction near the second sub-cavity 10b, so that the steam flowing from the steam pipe 20 can diffuse through the gradually expanding portion of the first sub-cavity 10a to the second sub-cavity 10b, that is, the steam can enter the second sub-cavity 10b more smoothly.

[0116] Optionally, the first nozzle body 101 and the second nozzle body 102 are detachably connected. This allows for replacement of only the first nozzle body 101 or the second nozzle body 102 if either needs replacement, thus facilitating maintenance of the airflow channel 11 and reducing blockages. Alternatively, the first nozzle body 101 and the second nozzle body 102 can be connected via, but not limited to, riveting or adhesive connections. Further, the first nozzle body 101 and the second nozzle body 102 are detachably connected via a threaded joint. This threaded joint structure provides a degree of sealing; a sealing structure may also be provided between the first nozzle body 101 and the second nozzle body 102. Additionally, the first nozzle body 101 and the second nozzle body 102 can be detachably connected via, but not limited to, a snap-fit ​​connection.

[0117] Optionally, the first nozzle body 101 is detachably connected to the steam pipe 20 to facilitate maintenance or replacement of the jet structure in case of blockage or damage. Further, the first nozzle body 101 and the steam pipe 20 are detachably connected via a threaded joint. Specifically, the threaded joint structure also has a certain degree of sealing capability. Of course, a sealing structure may also be optionally provided between the first nozzle body 101 and the steam pipe 20. Additionally, the first nozzle body 101 and the steam pipe 20 may also be detachably connected via, but not limited to, a snap-fit ​​structure.

[0118] Reference Figure 15 and Figure 16 In one embodiment, a temperature sensor 30 is further installed on the nozzle body 10 to detect the liquid temperature in the latte art container. The temperature sensor 30 includes a temperature sensing part 31 and a wire 32 connected to the temperature sensing part 31. The wire 32 passes sequentially through the steam pipe 20 and the air inlet chamber 12, and the temperature sensing part 31 is sealed through the wall of the air inlet chamber 12. This embodiment, by adding the temperature sensor 30, enhances the steam rod's liquid temperature measurement function, enabling the temperature of the beverage to be obtained while creating latte art, thus enriching the steam rod's functionality. Furthermore, by passing the wire 32 of the temperature sensor 30 through the steam pipe 20, the exposed wire 32 of the temperature sensor 30 is avoided, preventing it from affecting the user's latte art operation.

[0119] Furthermore, the steam pipe 20 is provided with a first channel 20a and a second channel 20b extending in parallel. The first channel 20a is connected to the air inlet chamber 12, and the second channel 20b is isolated from the air inlet chamber 12. The wire 32 passes through the second channel 20b. In this way, mutual influence between the steam and the wire 32 can be avoided. It can be understood that the high temperature of the steam can easily accelerate the aging of the insulation layer of the wire 32. At the same time, the wire 32 is also prone to accumulating dirt or releasing odors at high temperatures, thus affecting the cleanliness of the steam.

[0120] Reference Figure 15 In one embodiment, the steam pipe 20 includes an inner pipe 201 and an outer pipe 202 sleeved outside the inner pipe 201. The first channel 20a is formed between the outer pipe 202 and the inner pipe 201, and the second channel 20b is the inner pipe of the inner pipe 201. That is, the wire 32 passes through the inner pipe 201. Steam enters the air inlet chamber 12 through the space between the outer pipe 202 and the inner pipe 201. In this way, the mutual influence between the steam and the wire 32 can be avoided.

[0121] Optionally, the cavity wall of the air intake chamber 12 is provided with a temperature sensing mounting hole, and the temperature sensing part 31 is installed through the temperature sensing mounting hole. A first sealing element 41 is provided between the end of the inner tube 201 near the temperature sensing part 31 and the temperature sensing mounting hole. In this way, the first sealing element 41 not only seals the gap between the temperature sensing part 31 and the temperature sensing mounting hole, but also isolates the inner tube 201 from the air intake chamber 12, realizing the sealing of two positions with one sealing element, which can simplify the structure of the product.

[0122] Reference Figure 16 In another embodiment, the steam pipe 20 includes an inner pipe 201 and an outer pipe 202 sleeved outside the inner pipe 201. The first channel 20a is the inner pipe of the inner pipe 201, and the second channel 20b is formed between the outer pipe 202 and the inner pipe 201. That is, the wire 32 passes through the space between the outer pipe 202 and the inner pipe 201. Steam enters the air inlet chamber 12 through the inner pipe 201, thus avoiding mutual interference between the steam and the wire 32. In particular, high-temperature steam only flows in through the inner pipe 201, that is, no high-temperature steam flows into the space between the outer pipe 202 and the inner pipe 201. Therefore, the temperature of the outer pipe 202 is hardly affected by the high-temperature steam, thus maintaining a relatively low temperature. In this way, even if the outer pipe 202 is not insulated, the user will not be burned, and the overall structure of the product can be simplified.

[0123] Optionally, the wall of the air intake chamber 12 is provided with a temperature sensing mounting hole, and the temperature sensing part 31 is installed through the temperature sensing mounting hole. The outer tube 202 is connected to the air inlet 121 of the air intake chamber 12. The air intake chamber 12 is also provided with a second sealing member 42. The first end of the second sealing member 42 seals the air inlet 121, and the second end seals the temperature sensing mounting hole. The inner tube 201 passes through the second sealing member 42 from the end face of the first end and exits from the circumferential surface of the second sealing member 42 to communicate with the air intake chamber 12. The wire 32 passes through the second sealing member 42 from the end face of the second end and exits from the end face of the first end to the space between the outer tube 202 and the inner tube 201. In this way, the second seal 42 not only blocks the gap between the temperature sensing part 31 and the temperature sensing mounting hole, but also isolates the space between the outer tube 202 and the inner tube 201 from the connection with the air intake chamber 12, thus achieving one seal to block two positions and simplifying the product structure.

[0124] Optionally, the inner tube 201 includes a first inner tube 201 segment extending into the second seal 42 from the end face of the first end, and a second inner tube 201 segment extending out from the circumferential surface of the second seal 42. The first inner tube 201 segment and the second inner tube 201 segment are connected, and the included angle between the first inner tube 201 segment and the second inner tube 201 segment is an obtuse angle. In this way, steam can enter the air inlet chamber 12 more smoothly, which is conducive to forming a steam jet with stronger kinetic energy at the jet outlet 111, improving the foaming success rate and increasing the foaming effect.

[0125] Optionally, the second seal 42 is provided with a limiting protrusion 421 corresponding to the inner edge of the air inlet 121 to limit the length of the second seal 42 extending into the air inlet 121, thereby helping to ensure the effectiveness of the second seal 42 in sealing the gap between the temperature sensing part 31 and the temperature sensing mounting hole.

[0126] It is worth mentioning that, in this embodiment, the nozzle body 10 may optionally adopt a structure including a first nozzle segment 101 and a second nozzle segment 102 that are detachably connected. The air inlet chamber 12 is formed between the first nozzle segment 101 and the second nozzle segment 102. The air inlet 121 is provided in the first nozzle segment 101, and the temperature sensing mounting hole is provided in the second nozzle segment 102 to facilitate the installation of the second sealing member 42. Typically, the jet flow channel 11 is provided in the second nozzle segment 102.

[0127] This invention also proposes a beverage device, which includes a steam wand. The specific structure of the steam wand is as described in the above embodiments. Since this beverage device adopts all the technical solutions of all the above embodiments, it possesses at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be elaborated upon here. This beverage device can be a coffee machine or other equipment that requires frothing operations on the surface of the beverage liquid it is making.

[0128] The above description is merely a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention's specification and drawings under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A steam wand for making beverages, characterized in that, The steam rod includes: The nozzle body includes an air inlet chamber, an air inlet communicating with the air inlet chamber, and a jet flow channel communicating with the air inlet chamber. The air inlet chamber has a nozzle axis extending along a first direction, and the outlet of the jet flow channel away from the air inlet chamber is a jet outlet. The jet outlet has a jet centerline extending along a second direction. A steam pipe is provided at the air inlet for connecting to the steam generator; On a reference plane passing through the jet center point of the jet outlet and perpendicular to the nozzle axis, the line connecting the projection point of the nozzle axis on the reference plane and the jet center point forms an angle with the projection line of the jet center line on the reference plane, and the jet center line forms an angle with the reference plane.

2. The steam rod as described in claim 1, characterized in that, On the reference plane, the distance from the projection point of the nozzle axis to the extension of the projection line of the jet centerline is greater than or equal to 3 mm.

3. The steam rod as described in claim 2, characterized in that, On the reference plane, the distance from the projection point of the nozzle axis to the extension of the projection line of the jet centerline is less than or equal to 8 mm.

4. The steam rod as described in claim 1, characterized in that, The outer diameter of the nozzle body is greater than or equal to 6 mm and less than or equal to 24 mm; and / or The inner diameter of the air intake chamber is greater than or equal to 4 mm and less than or equal to 12 mm; and / or The wall thickness of the nozzle body at the opening location of the jet flow channel is greater than or equal to 2 mm and less than or equal to 12 mm.

5. The steam rod as described in claim 1, characterized in that, On the reference plane, when the distance from the projection point of the nozzle axis to the extension of the projection line of the jet center line is greater than or equal to 3.5 mm and less than or equal to 4.5 mm, the outer diameter of the nozzle body is greater than or equal to 12 mm. On the reference plane, when the distance from the projection point of the nozzle axis to the extension of the projection line of the jet center line is greater than 4.5 mm and less than or equal to 5.5 mm, the outer diameter of the nozzle body is greater than or equal to 16 mm. On the reference plane, when the distance from the projection point of the nozzle axis to the extension of the projection line of the jet center line is greater than 5.5 mm and less than or equal to 6.5 mm, the outer diameter of the nozzle body is greater than or equal to 20 mm.

6. The steam rod as described in claim 1, characterized in that, The angle between the jet centerline and the reference plane is greater than or equal to 20° and less than or equal to 70°.

7. The steam rod as described in claim 6, characterized in that, The angle between the jet centerline and the reference plane is greater than or equal to 30° and less than or equal to 60°.

8. The steam rod as described in claim 1, characterized in that, The outer surface of the nozzle body includes a cylindrical section and a lower section. The cylindrical section has a first edge away from the air inlet. The lower section is connected to the first edge. The jet outlet is located on the cylindrical section or at the junction of the cylindrical section and the lower section.

9. The steam rod as described in claim 8, characterized in that, The cylindrical section also has a second edge near the air inlet, and the distance between the jet outlet and the second edge is greater than or equal to 5 mm.

10. The steam rod as claimed in claim 1, characterized in that, The connection between the jet flow channel and the air intake chamber is the jet inlet. The height difference between the jet inlet and the jet outlet along the nozzle axis is greater than or equal to 1 mm and less than or equal to 12 mm. and / or The length of the jet flow channel is greater than or equal to 2 mm and less than or equal to 15 mm.

11. The steam rod according to any one of claims 1 to 10, characterized in that, The jet flow channel is provided in multiple ways, and the multiple jet flow channels are arranged at intervals in the circumferential direction around the axis of the nozzle.

12. The steam rod as claimed in claim 11, characterized in that, The connection between the jet flow channel and the air intake chamber is a jet inlet; Multiple jet inlets are at the same height along the nozzle axis; and / or The multiple jet outlets are at the same height along the nozzle axis.

13. The steam rod according to any one of claims 1 to 10, characterized in that, At least a portion of the jet flow path extends along a curve; and / or The air intake chamber is provided with a guide protrusion facing into the chamber, and the connection between the jet flow channel and the air intake chamber is a jet inlet, which is located next to the guide protrusion; and / or The nozzle body is further provided with an auxiliary jet flow channel communicating with the air intake chamber, the auxiliary jet flow channel extending along the first direction; and / or A temperature sensor is installed on the nozzle body. The temperature sensor includes a temperature sensing part and a wire connected to the temperature sensing part. The steam pipe has a first channel and a second channel extending in parallel. The first channel is connected to the air inlet chamber, and the second channel is isolated from the air inlet chamber. The wire passes through the second channel.

14. The steam rod according to any one of claims 1 to 10, characterized in that, At least a portion of the air intake chamber has an inner diameter larger than the inner diameter of the steam pipe.

15. The steam rod as described in claim 14, characterized in that, The nozzle body has an opening, the air inlet chamber communicates with the opening, and the nozzle body is fitted onto the outer surface of the steam pipe through the opening; or The steam pipe includes a pipe body and an installation head integrally connected to the pipe body. The outer diameter of the installation head is larger than the outer diameter of the pipe body, and a connecting cavity is formed inside the installation head. The nozzle body has an opening, and the air inlet cavity communicates with the opening. The installation head is fitted onto the outer circumferential surface of the opening end of the nozzle body through the connecting cavity; or The nozzle body includes a first nozzle component and a second nozzle component connected together. The jet flow channel is located in the second nozzle component, and the first nozzle component is connected to the steam pipe.

16. A beverage equipment, characterized in that, Includes the steam rod as described in any one of claims 1 to 15.

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