Spray head assembly and beverage equipment

Abstract

The utility model discloses a spray head assembly and beverage equipment, and the spray head assembly comprises a steam pipe; the spray head structure is provided with an air inlet cavity communicated with the steam pipe and an air injection flow channel communicated with the air inlet cavity; the temperature sensor comprises a temperature sensing part and a wire connected with the temperature sensing part, the wire sequentially penetrates through the steam pipe and the air inlet cavity, and the temperature sensing part penetrates out of the cavity wall of the air inlet cavity in a sealed mode. According to the technical scheme, the temperature measuring function of the nozzle structure on liquid can be added, so that the temperature of drinks can be obtained while foaming and garland are achieved, and the functions of the nozzle structure are enriched; in addition, the wire of the temperature sensor penetrates through the steam pipe, so that the wire of the temperature sensor can be prevented from being exposed to influence the foaming and garland operation of a user.

Description

Technical Field

[0001] The utility model relates to the technical field of beverage equipment, in particular to a spray head assembly and beverage equipment. Background Art

[0002] Milk coffee is becoming increasingly popular, as dense milk foam enhances the coffee's flavor and creates latte art. Steam frothing is one of the most common methods for frothing milk in semi-automatic coffee machines. However, the most common steam wands currently offer only a frothing function, making them relatively limited in functionality. Utility Model Content

[0003] The main purpose of the utility model is to provide a nozzle assembly, aiming to solve the problem of single function of common nozzles.

[0004] To achieve the above objectives, the nozzle assembly proposed by the present invention includes:

[0005] steam pipes;

[0006] a nozzle structure, the nozzle structure being provided with an air inlet cavity communicating with the steam pipe, and an air jet flow channel communicating with the air inlet cavity; and

[0007] The temperature sensor includes a temperature sensing portion and a wire connected to the temperature sensing portion. The wire is sequentially passed through the steam pipe and the air inlet cavity. The temperature sensing portion is sealed and passes through the cavity wall of the air inlet cavity.

[0008] Optionally, a first channel and a second channel extending in parallel are provided in the steam pipe, the first channel is communicated with the air inlet cavity, the second channel is isolated from the air inlet cavity, and the wire is passed through the second channel.

[0009] Optionally, the steam pipe includes an inner pipe and an outer pipe sleeved on the outer side of the inner pipe, the first channel is formed between the outer pipe and the inner pipe, and the second channel is an inner pipe of the inner pipe.

[0010] Optionally, a temperature sensing installation hole is opened in the cavity wall of the air inlet cavity, the temperature sensing part is passed through and installed in the temperature sensing installation hole, and a first sealing member is provided between the end of the inner tube close to the temperature sensing part and the temperature sensing installation hole.

[0011] Optionally, the steam pipe includes an inner pipe and an outer pipe sleeved on the outer side of the inner pipe, the first channel is an inner pipe of the inner pipe, and the second channel is formed between the outer pipe and the inner pipe.

[0012] Optionally, a temperature sensing mounting hole is opened in the cavity wall of the air inlet cavity, the temperature sensing portion is installed in the temperature sensing mounting hole, the nozzle structure is further provided with an air inlet communicating with the air inlet cavity, and the outer tube is connected to the air inlet.

[0013] Optionally, the nozzle assembly further includes a second seal, the first end of the second seal seals the air inlet, and the second end seals the temperature sensing mounting hole, the inner tube passes through the second seal from the end face of the first end, and passes through the peripheral surface of the second seal to communicate with the air inlet cavity, the wire passes through the second seal from the end face of the second end, and passes through the end face of the first end to between the outer tube and the inner tube.

[0014] Optionally, the second sealing member is provided with a limiting protrusion on the edge of the inner opening corresponding to the air inlet.

[0015] Optionally, the nozzle structure includes a first nozzle split and a second nozzle split that are detachably connected to each other, the air inlet cavity is formed between the first nozzle split and the second nozzle split, the air inlet is provided in the first nozzle split, and the temperature sensing mounting hole is provided in the second nozzle split.

[0016] Optionally, the inner tube is centrally arranged inside the outer tube.

[0017] Optionally, an outlet of the jet flow channel away from the air inlet cavity is a jet outlet, and the jet flow channel is eccentrically arranged relative to the nozzle structure at least at the jet outlet.

[0018] The present invention further provides a beverage device, comprising a water tank, a heating device arranged in the water tank, and the aforementioned nozzle assembly, wherein the nozzle assembly is connected to the water tank through the steam pipe.

[0019] In the technical solution of the present invention, the nozzle assembly includes a steam pipe, a nozzle structure, and a temperature sensor, wherein the nozzle structure is provided with an air inlet cavity connected to the steam pipe, and an air jet flow channel connected to the air inlet cavity; the temperature sensor includes a temperature sensing portion, and a wire connected to the temperature sensing portion, the wire being sequentially passed through the steam pipe and the air inlet cavity, and the temperature sensing portion being sealed and passing through the cavity wall of the air inlet cavity. By adding a temperature sensor, the temperature measurement function of the liquid of the nozzle structure can be increased, so that the temperature of the beverage can be obtained while achieving foaming and latte art, thereby enriching the function of the nozzle structure. In addition, by passing the wire of the temperature sensor through the steam pipe, the wire of the temperature sensor can be prevented from being exposed, thereby preventing the user from affecting the foaming and latte art operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0021] Figure 1 This is a top view schematic diagram of an application scenario of an embodiment of the nozzle structure of the utility model;

[0022] Figure 2 This is a side view schematic diagram of an application scenario of an embodiment of the nozzle structure of the utility model;

[0023] Figure 3 This is a schematic diagram of the assembly of the nozzle structure and the steam pipe of the first embodiment of the utility model;

[0024] Figure 4 for Figure 3 Side view schematic diagram of the application scenario of the middle nozzle structure;

[0025] Figure 5 for Figure 3 A bottom-up schematic diagram of the middle nozzle structure;

[0026] Figure 6 This is a bottom view schematic diagram of the second embodiment of the nozzle structure of the utility model;

[0027] Figure 7 This is a side view of a third embodiment of the nozzle structure of the present invention;

[0028] Figure 8 for Figure 7 A bottom-up schematic diagram of the middle nozzle structure;

[0029] Figure 9 This is a bottom view schematic diagram of a fourth embodiment of the nozzle structure of the present utility model;

[0030] Figure 10 This is an exploded diagram of the nozzle structure and steam pipe of the fifth embodiment of the present invention;

[0031] Figure 11 This is a schematic diagram of the assembly of the nozzle structure and the steam pipe according to the sixth embodiment of the present invention;

[0032] Figure 12 This is a schematic diagram of the assembly of the nozzle structure and the steam pipe according to the seventh embodiment of the present invention;

[0033] Figure 13 This is a schematic diagram of the assembly of the nozzle structure and the steam pipe according to the eighth embodiment of the present invention;

[0034] Figure 14 Schematic diagram of the assembly of the nozzle structure and the steam pipe according to the ninth embodiment of the present invention.

[0035] Description of Figure Numbers:

[0036] 10. Nozzle body; 11. Jet flow channel; 111. Jet outlet; 12. Air inlet cavity; 121. Air inlet; 13. Nozzle hole; 14. Extension tube; 15. Positioning sink; 10a. First sub-cavity; 10b. Second sub-cavity; 101. First nozzle split; 102. Second nozzle split; 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 tube; 202. Outer tube; 30. Temperature sensor; 31. Temperature sensing unit; 32. Wire; 41. First sealing member; 42. Second sealing member; 421. Positioning protrusion

[0037] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0039] 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 position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0040] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of such features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme in which A and B are satisfied at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0041] The utility model provides a spray head assembly.

[0042] Reference Figure 13 and Figure 14 In one embodiment of the present invention, the nozzle assembly includes a steam pipe 20, a nozzle structure, and a temperature sensor 30, so as to detect the temperature of the liquid in the latte art cylinder through the temperature sensor 30. The nozzle structure is provided with an air inlet chamber 12 connected to the steam pipe 20, and an air jet channel 11 connected to the air inlet chamber 12; the temperature sensor 30 includes a temperature sensing portion 31 and a wire 32 connected to the temperature sensing portion 31. The wire 32 is sequentially passed through the steam pipe 20 and the air inlet chamber 12, and the temperature sensing portion 31 is sealed and passes through the wall of the air inlet chamber 12. By adding the temperature sensor 30, this embodiment can increase the temperature measurement function of the nozzle structure for the liquid, so that the temperature of the beverage can be obtained while achieving latte art, thereby enriching the functionality of the nozzle structure. In addition, by passing the wire 32 of the temperature sensor 30 through the steam pipe 20, the wire 32 of the temperature sensor 30 can be prevented from being exposed, thereby preventing the wire 32 of the temperature sensor 30 from affecting the user's latte art operation.

[0043] 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 cavity 12, and the second channel 20b is isolated from the air inlet cavity 12. The wire 32 is passed through the second channel 20b. In this way, the mutual influence between the steam and the wire 32 can be avoided. It can be understood that the high steam temperature can easily accelerate the aging of the insulation layer of the wire 32. At the same time, the wire 32 is also easy to harbor dirt or precipitate odor at high temperature, which affects the cleanliness of the steam.

[0044] Reference Figure 13In one embodiment, the steam pipe 20 includes an inner tube 201 and an outer tube 202 sleeved on the outside of the inner tube 201. The first channel 20a is formed between the outer tube 202 and the inner tube 201. The second channel 20b is the inner pipe of the inner tube 201, that is, the wire 32 is passed through the inner tube 201. The steam enters the air inlet cavity 12 through the space between the outer tube 202 and the inner tube 201. In this way, the mutual influence between the steam and the wire 32 can be avoided.

[0045] Optionally, a temperature sensing mounting hole is provided in the cavity wall of the air inlet cavity 12, and the temperature sensing part 31 is passed through and installed in the temperature sensing mounting hole. A first sealing member 41 is provided between the end of the inner tube 201 close to the temperature sensing part 31 and the temperature sensing mounting hole. In this way, the first sealing member 41 not only blocks the gap between the temperature sensing part 31 and the temperature sensing mounting hole, but also isolates the inner tube 201 from the air inlet cavity 12, thereby realizing one sealing member blocking two positions, which can simplify the structure of the product.

[0046] Reference Figure 14 In another embodiment, the steam pipe 20 includes an inner tube 201 and an outer tube 202 sheathed outside the inner tube 201. The first channel 20a is an inner conduit of the inner tube 201, and the second channel 20b is formed between the outer tube 202 and the inner tube 201. Specifically, the wire 32 passes through the space between the outer tube 202 and the inner tube 201, and steam enters the air inlet chamber 12 through the inner tube 201. This prevents interaction between the steam and the wire 32. Specifically, high-temperature steam flows only through the inner tube 201, that is, no high-temperature steam flows into the space between the outer tube 202 and the inner tube 201. Therefore, the temperature of the outer tube 202 is hardly affected by the high-temperature steam, thereby maintaining a relatively low temperature. Thus, even if the outer tube 202 is not provided with a thermal insulation structure, it will not cause burns to the user, thereby simplifying the overall structure of the product.

[0047] Optionally, a temperature sensing mounting hole is provided in the cavity wall of the air inlet cavity 12, and the temperature sensing portion 31 is installed in the temperature sensing mounting hole so that at least part of the temperature sensing portion 31 can be exposed outside the nozzle structure, thereby being able to directly contact the liquid and improve the accuracy of temperature sensing; the nozzle structure is also provided with an air inlet 121 connected to the air inlet cavity 12, and the outer tube 202 is connected to the air inlet 121 to realize the connection between the outer tube 202 and the air inlet cavity 12.

[0048] Optionally, a second sealing member 42 is further provided in the air inlet cavity 12. 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 penetrates the second sealing member 42 from the end face of the first end and exits from the circumference of the second sealing member 42 to communicate with the air inlet cavity 12. The wire 32 penetrates the second sealing member 42 from the end face of the second end and exits from the end face of the first end to between the outer tube 202 and the inner tube 201. In this way, the second sealing member 42 not only blocks the gap between the temperature sensing portion 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 inlet cavity 12, thereby achieving one sealing member to seal two locations, which can simplify the product structure.

[0049] Optionally, the inner tube 201 includes a first inner tube section extending from the end face of the first end into the second seal 42, and a second inner tube section passing through the circumferential surface of the second seal 42. The first inner tube section is connected to the second inner tube section, and the angle between the first inner tube section and the second inner tube section is an obtuse angle. In this way, steam can enter the air inlet cavity 12 more smoothly, which is conducive to forming a steam jet with stronger kinetic energy at the jet outlet 111 of the jet channel 11, thereby improving the success rate of bubbling and increasing the cotton-beating effect.

[0050] Optionally, the second seal 42 is provided with a limiting protrusion 421 corresponding to the inner hole edge of the air inlet 121 to limit the length of the portion of the second seal 42 extending into the air inlet 121, thereby facilitating ensuring the effectiveness of the second seal 42 in sealing the gap between the temperature sensing part 31 and the temperature sensing mounting hole.

[0051] It is worth mentioning that in this embodiment, the nozzle structure can optionally adopt a structure including a first nozzle body 101 and a second nozzle body 102 that are detachably connected. The air inlet cavity 12 is formed between the first nozzle body 101 and the second nozzle body 102. The air inlet 121 is provided in the first nozzle body 101, and the temperature sensing mounting hole is provided in the second nozzle body 102 to facilitate the installation of the second sealing member 42. Typically, the air jet channel 11 is provided in the second nozzle body 102.

[0052] Reference Figure 13 and Figure 14In the present invention, optionally, the inner tube 201 is centrally arranged in the outer tube 202, so that an annular space can be formed between the inner tube 201 and the outer tube 202, thereby avoiding contact between the inner tube 201 and the outer tube 202, thereby reducing the probability of contact adhesion between the inner tube 201 and the outer tube 202. It can be understood that if contact adhesion occurs between the inner tube 201 and the outer tube 202, the aging of the inner tube 201 and the outer tube 202 will be accelerated, which will affect the service life of the inner tube 201 and the outer tube 202. In addition, Figure 13 In the embodiment shown, steam flows in the gap between the inner tube 201 and the outer tube 202 , and the annular gap is more conducive to the smooth flow of steam.

[0053] Reference Figures 1 to 5 In one embodiment, the outlet of the jet flow channel 11 away from the air inlet chamber 12 is a jet outlet 111. The jet flow channel 11 is eccentrically disposed relative to the nozzle structure at least at the jet outlet 111. Specifically, the nozzle structure has a nozzle axis extending along a first direction (typically the axis of the air inlet chamber 12), and the jet outlet 111 has an air injection centerline extending along a second direction. On a reference plane passing through the jet center point of the jet outlet 111 and perpendicular to the axis of the nozzle, a line connecting the projection point of the nozzle axis and the jet center point is set at an angle α to the jet center line or its projection line. In this way, the steam ejected from the jet outlet 111 can have a tangential component of a circle centered on the projection point of the nozzle axis. This tangential component can enable the steam to drive the liquid to achieve a vortex flow. Therefore, when making bubbles, it is only necessary to extend the nozzle structure into the center or near-center position of the liquid to be foamed, and tilt the jet outlet 111 toward the bottom of the cup of the flower drawing cylinder. A vortex flow can be formed in the flower drawing cylinder and the liquid can be rolled inside and outside, thereby achieving a good foaming effect. That is, the nozzle structure provided by the technical solution of the present invention can achieve foaming through simpler operation, thereby lowering the usage threshold of the foaming device provided with the nozzle structure.

[0054] It should be noted that, when the jet center line is located on the reference plane, the user needs to simply adjust the inclination angle of the nozzle structure, as long as there is a certain inclination angle between the jet outlet 111 and the bottom of the latte art cylinder cup; and when there is an angle between the jet center line and the reference plane, the user only needs to vertically extend the nozzle structure to a position close to the liquid surface, so that there is a certain inclination angle between the jet outlet 111 and the bottom of the latte art cylinder cup. In this case, the projection line of the jet center line on the reference plane is set at an angle α with the aforementioned connecting line.

[0055] Optionally, on the reference plane, the distance L from the projection point of the nozzle axis to the jet centerline or the reverse extension line of its projection line is greater than or equal to 2 mm. It can be understood that the farther the tangential airflow is from the nozzle axis, that is, the farther the tangential airflow is from the center of the liquid to be foamed, the better the vortex effect. In this embodiment, L is ≥ 2 mm to ensure that the vortex effect generated by the nozzle structure is good. Furthermore, L is ≥ 3 mm to further increase the lower limit of the vortex effect that can be generated by the nozzle structure.

[0056] It is worth mentioning that, when the diameter of the circle where the jet outlet 111 is located is constant, that is, when the outer diameter of the nozzle structure is constant, the larger the angle α is, the larger the L is, and the better the vortex effect of the steam on the liquid is, but the larger the angle α is, the more difficult the nozzle structure is to process; and when the angle α is constant, the larger the outer diameter of the nozzle structure is, the larger the L is, and the better the vortex effect of the steam on the liquid is, but the larger the outer diameter of the nozzle structure is, the higher the material cost required for the nozzle structure is, and it may not be applicable to smaller drawing cylinders. In order to take into account lower processing difficulty, lower cost and wider product application range, the range of the angle α can be selected from 10° to 45°, and the diameter of the circle where the jet outlet 111 is located (that is, the outer diameter of the nozzle structure) can be selected from 10mm to 30mm.

[0057] Furthermore, the jet centerline is set at an angle β with the reference plane. In this way, the user only needs to vertically extend the nozzle structure to a position close to the liquid surface, so that the jet outlet 111 and the bottom of the latte art cylinder cup have a certain inclination angle (the foaming operation is simpler), so that the steam ejected from the jet outlet 111 is inclined relative to the liquid surface, so that the steam jet can generate a local negative pressure cavity on the liquid surface and draw in the outside air, which is conducive to better air intake and frothing effect of the liquid.

[0058] It's worth noting that as the angle β approaches 90°, the steam jet creates a weaker liquid surface tumbling effect, less effective air entrainment, and poorer cotton-beating performance. Conversely, as the angle β approaches 0°, the steam jet is more likely to cause liquid overflow and splashing. To achieve both a good cotton-beating performance and minimize overflow and splashing, the angle β can be set within the range of 20° ≤ β ≤ 70°. To further achieve a better balance between maintaining a good cotton-beating performance and minimizing overflow and splashing, the angle β can be set within the range of 30° ≤ β ≤ 60°.

[0059] Furthermore, the jet outlets 111 are provided in plurality, and the plurality of jet outlets 111 are spaced apart in the circumferential direction around the axis of the nozzle. In this way, a vortex of better quality can be formed more efficiently in the drawing cylinder, and a negative pressure cavity of a larger range for entraining air can be realized, ultimately forming finer bubbles. In addition, the provision of multiple jet outlets 111 can also make the horizontal components of the reverse thrust of the steam jets ejected by the jet outlets 111 at various positions offset or nearly offset each other, so that the user basically does not need to consider the impact of the horizontal displacement of the nozzle structure on the drawing process. Of course, in the present invention, only one jet outlet 111 can also be provided. In this case, during the drawing operation, additional force is required to limit the translation of the nozzle structure. This additional force can be applied by the user, or by fixing the nozzle structure in one place and providing this additional force through a fixed structure. The user only needs to hold the drawing cylinder to cooperate with the nozzle structure. Further optionally, the plurality of jet outlets 111 are evenly spaced in the circumferential direction around the axis of the nozzle to completely offset the horizontal components of the reverse thrusts and make the liquid bubbles at each position more uniform.

[0060] It is understood that if the number of the air jet outlets 111 is too small, the beating effect of the bubble will be weak; if the number of the air jet outlets 111 is too large, processing will be more difficult. In this embodiment, in order to achieve a good beating effect and easier processing, the number of the air jet outlets 111 can be selected to be 3 or 4.

[0061] Reference Figure 6 Furthermore, at least part 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 from the inside to the outside, which is conducive to forming a larger angle α at the jet outlet 111.

[0062] Optionally, in the direction away from the nozzle axis, the curvature of the portion of the jet flow 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, and it is more conducive to the realization of a larger angle α.

[0063] Optionally, the entire jet flow channel 11 extends along a curve (eg Figure 6 However, the present design is not limited thereto, and in other embodiments, the jet flow channel 11 may also partially extend in a straight line.

[0064] The nozzle structure generally includes a nozzle body 10 provided with the air inlet cavity 12 and a nozzle hole 13 provided in the nozzle body 10 . The air jet flow channel 11 includes a channel of the nozzle hole 13 .

[0065] In one embodiment, the jet flow channel 11 may only include the channel of the nozzle hole 13. In this case, the channel of the nozzle hole 13 at least partially extends along a curve, and usually extends along a curve as a whole (e.g. Figure 6 ), so as to reduce the wall thickness of the nozzle body 10 required to achieve a larger angle α, thereby reducing material cost and processing cost.

[0066] However, the present invention is not limited thereto. In another embodiment, referring to Figures 7 to 9 , the nozzle structure may further include an extension tube 14 provided on the outer wall of the nozzle body 10 and connected to the nozzle hole 13, and the jet flow channel 11 may also include a pipeline of the extension tube 14. It can be understood that the provision of the extension tube 14 can make the jet flow channel 11 longer, so that the desired orientation of the jet outlet 111 can be achieved more conveniently, because the direction change of the extension tube 14 is easier to achieve than the direction change of the channel in the wall of the nozzle body 10. It should be noted that, in this embodiment, only at least a portion of the channel of the nozzle hole 13 can be set to extend along a curve (such as Figure 9 ), it is also possible to set at least a portion of the extension pipe 14 to extend along a curve (such as Figure 8 ), at least a portion of the nozzle hole 13 and at least a portion of the extension pipe 14 can also be arranged to extend along a curve.

[0067] The steam pipe 20 has a first inner diameter, and at least a portion of the air inlet cavity 12 has 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 cavity 12 is larger than the cross-sectional area of ​​the steam pipe 20. This, on the one hand, facilitates the provision of multiple jet flow channels 11 and allows the jet outlet 111 to be located further away from the nozzle axis, thereby further facilitating the formation of a larger vortex effect. On the other hand, it facilitates the buffering and pressurization of steam by the air inlet cavity 12, further facilitating the formation of a larger vortex effect.

[0068] Reference Figure 10 In one embodiment, the nozzle structure includes a nozzle body 10 having an opening. The air inlet cavity 12 and the air jet flow channel 11 are both provided in the nozzle body 10, and the air inlet cavity 12 is in communication with the opening. The nozzle body 10 is sleeved onto the outer tube 202 of the steam pipe 20 via the opening. It will be appreciated that the wall of the steam pipe 20 has a certain thickness. By sleeved the opening onto the outer tube 202 of the steam pipe 20, the wall thickness of the steam pipe 20 can be utilized to directly increase the inner diameter of the air inlet cavity 12. As such, the structure of the nozzle body 10 is relatively simple and easy to manufacture.

[0069] Optionally, the open end of the nozzle body 10 is detachably connected to the steam pipe 20 to facilitate repair or replacement of the jet structure in the event of blockage. Of course, the open end of the nozzle body 10 and the steam pipe 20 may also be connected, but not limited to, by a riveted structure or an adhesive structure. Further, optionally, the open end of the nozzle body 10 and the steam pipe 20 are detachably connected via a threaded pair. Specifically, the open end of the nozzle body 10 is provided with an internal thread, and the outer tube 202 of the steam pipe 20 is provided with an external thread, and the detachable connection is achieved through the cooperation 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 may also be optionally provided between the open end of the nozzle body 10 and the steam pipe 20. Furthermore, the open end of the nozzle body 10 and the steam pipe 20 may also be detachably connected, but not limited to, by a snap-fit ​​structure.

[0070] Optionally, a positioning structure is provided between the opening of the nozzle body 10 and the steam pipe 20. This positioning structure limits the depth to which the steam pipe 20 extends into the air inlet cavity 12, thereby ensuring a larger volume of the air inlet cavity 12 and thereby ensuring a better buffering and pressurizing effect. Further optionally, the positioning structure includes a positioning groove 15 provided on the periphery of the opening of the nozzle body 10 and a positioning step 23 provided on the outer tube 202 of the steam pipe 20. The positioning groove 15 and the positioning step 23 cooperate to limit the depth to which the steam pipe 20 extends into the air inlet cavity 12.

[0071] Reference Figure 11 In another embodiment, the steam pipe 20 includes a pipe body 21 having an inner diameter of 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 structure includes a nozzle body 10 having an open opening, the air inlet cavity 12 and the air jet flow channel 11 are both provided in the nozzle body 10, and the air inlet cavity 12 is connected to the open opening. The mounting head 22 is sleeved onto the outer circumferential surface of the open end of the nozzle body 10 through the connecting cavity 221. In this embodiment, a mounting head 22 is added to the end of the main body 21 of the steam pipe 20 to connect it to the nozzle body 10. The mounting head 22 is relatively thick, enabling a reliable connection with the nozzle body 10, which is also relatively thick. Furthermore, the open nozzle body 10 is also easy to manufacture. In this embodiment, the main body 21 and the mounting head 22 are optionally integrally formed. However, this design is not limited to this. In other embodiments, the mounting head 22 and the main body 21 may also be welded together, but are not limited to being integrally formed.

[0072] Optionally, a transition chamber 222 is further formed in the mounting head 22, one end of the transition chamber 222 is connected to the tube body 21, and the other end is connected to the connecting chamber 221, and the cross-sectional area of ​​the transition chamber 222 is gradually expanded in the direction close to the connecting chamber 221, so that the steam flowing from the tube body 21 can diffuse to the air inlet chamber 12 through the transition chamber 222, that is, the steam can enter the air inlet chamber 12 more smoothly.

[0073] Optionally, the open end of the nozzle body 10 is detachably connected to the connecting cavity 221 of the mounting head 22 to facilitate repair or replacement of the jet structure in the event of blockage. Of course, the open end of the nozzle body 10 and the connecting cavity 221 of the mounting head 22 may also be connected, but not limited to, by a riveting structure or an adhesive structure. Further, optionally, the open end of the nozzle body 10 and the connecting cavity 221 of the mounting head 22 are detachably connected by a threaded pair. Specifically, the outer peripheral surface of the open end of the nozzle body 10 is provided with an external thread, and the side surface of the connecting cavity 221 of the mounting head 22 is provided with an internal thread, and the detachable connection is achieved through the cooperation of the external and internal threads. In particular, the threaded pair structure also has a certain degree of sealing capability. Of course, a sealing structure may also be optionally provided between the open end of the nozzle body 10 and the connecting cavity 221 of the mounting head 22. In addition, the open end of the nozzle body 10 and the connecting cavity 221 of the mounting head 22 may also be detachably connected, but not limited to, by a snap-fit ​​structure.

[0074] Reference Figure 12 In yet another embodiment, the nozzle structure includes a first nozzle body 101 and a second nozzle body 102 connected together. The air inlet chamber 12 includes a first sub-chamber 10a disposed within the first nozzle body 101 and a second sub-chamber 10b disposed within the second nozzle body 102. The second sub-chamber 10b has an inner diameter equal to the second inner diameter. The air jet passages 11 are disposed within the second nozzle body 102. The inner diameter of the first sub-chamber 10a is a fourth inner diameter that is smaller than the second inner diameter. The second sub-chamber 10b communicates with the steam pipe 20 via the first sub-chamber 10a. This embodiment facilitates the processing and forming of the larger inner cavity by dividing the nozzle structure with a larger inner cavity into at least two connected portions.

[0075] Optionally, the inner diameter of the portion of the first sub-cavity 10a close to the second sub-cavity 10b is gradually increased in the direction close to the second sub-cavity 10b, so that the steam flowing from the steam pipe 20 can diffuse to the second sub-cavity 10b through the gradually expanding part of the first sub-cavity 10a, that is, the steam can enter the second sub-cavity 10b more smoothly.

[0076] Optionally, the first nozzle split 101 and the second nozzle split 102 are detachably connected. In this way, when either the first nozzle split 101 or the second nozzle split 102 needs to be replaced, only that one can be replaced without replacing both at the same time, and this is also beneficial for repairing blockages in the jet flow channel 11. Of course, the first nozzle split 101 and the second nozzle split 102 can also be connected, but not limited to, by a riveted structure or an adhesive structure. Further optionally, the first nozzle split 101 and the second nozzle split 102 are detachably connected by a threaded pair. 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 first nozzle split 101 and the second nozzle split 102. In addition, the first nozzle split 101 and the second nozzle split 102 can also be detachably connected, but not limited to, by a snap-on structure.

[0077] Optionally, the first nozzle body 101 is detachably connected to the steam pipe 20 to facilitate repair of blockage or replacement of the jet structure. Furthermore, the first nozzle body 101 is detachably connected to the steam pipe 20 via a threaded pair. In particular, the threaded pair structure 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. Furthermore, the first nozzle body 101 and the steam pipe 20 may also be detachably connected via, but not limited to, a snap-fit ​​structure.

[0078] The present invention also provides a beverage device comprising a water tank, a heating device disposed within the water tank, and a nozzle assembly. The specific structure of the nozzle assembly is similar to that of the aforementioned embodiments. Since the present beverage device utilizes all of the technical solutions of all of the aforementioned embodiments, it exhibits at least all of the beneficial effects provided by the technical solutions of the aforementioned embodiments, and therefore will not be further detailed here. The nozzle assembly communicates with the water tank via a steam pipe. The heating device is used to heat the water within the water tank to generate steam, which is then ejected from the nozzle body's jet flow channel through the steam pipe to create foam and latte art. The beverage device can be a coffee machine or other device that requires foaming the surface of the beverage being produced.

[0079] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A nozzle assembly, characterized in that: include: steam pipes; A nozzle structure, wherein the nozzle structure is provided with an air inlet cavity communicated with the steam pipe, and an air jet flow channel communicated with the air inlet cavity; as well as The temperature sensor includes a temperature sensing portion and a wire connected to the temperature sensing portion. The wire is sequentially passed through the steam pipe and the air inlet cavity. The temperature sensing portion is sealed and passes through the cavity wall of the air inlet cavity.

2. The nozzle assembly according to claim 1, wherein: A first channel and a second channel extending in parallel are provided in the steam pipe. The first channel is communicated with the air inlet cavity, and the second channel is isolated from the air inlet cavity. The wire is passed through the second channel.

3. The nozzle assembly according to claim 2, wherein: The steam pipe includes an inner pipe and an outer pipe sleeved outside the inner pipe. The first channel is formed between the outer pipe and the inner pipe. The second channel is an inner pipe of the inner pipe.

4. The nozzle assembly according to claim 3, wherein: A temperature sensing installation hole is opened on the cavity wall of the air inlet cavity, the temperature sensing part is passed through and installed in the temperature sensing installation hole, and a first sealing member is provided between one end of the inner tube close to the temperature sensing part and the temperature sensing installation hole.

5. The nozzle assembly according to claim 2, wherein: The steam pipe includes an inner pipe and an outer pipe sleeved outside the inner pipe. The first channel is an inner pipe of the inner pipe, and the second channel is formed between the outer pipe and the inner pipe.

6. The nozzle assembly according to claim 5, wherein: The cavity wall of the air inlet cavity is provided with a temperature sensing installation hole, the temperature sensing portion is penetrated and installed in the temperature sensing installation hole, the nozzle structure is further provided with an air inlet communicated with the air inlet cavity, and the outer tube is connected to the air inlet.

7. The nozzle assembly according to claim 6, wherein: The nozzle assembly also includes a second seal, the first end of the second seal seals the air inlet, and the second end seals the temperature sensing mounting hole. The inner tube passes through the second seal from the end face of the first end and passes through the circumferential surface of the second seal to communicate with the air inlet cavity. The wire passes through the second seal from the end face of the second end and passes through the end face of the first end to between the outer tube and the inner tube.

8. The nozzle assembly according to claim 7, wherein: The second sealing member is provided with a limiting protrusion at the edge of the inner opening corresponding to the air inlet; and / or The nozzle structure includes a first nozzle split and a second nozzle split that are detachably connected. The air inlet cavity is formed between the first nozzle split and the second nozzle split. The air inlet is provided in the first nozzle split, and the temperature sensing mounting hole is provided in the second nozzle split.

9. The nozzle assembly according to any one of claims 3 to 8, wherein: The inner tube is centrally arranged inside the outer tube.

10. The nozzle assembly according to any one of claims 1 to 8, characterized in that: The outlet of the jet flow channel away from the air inlet cavity is the jet outlet, and the jet flow channel is eccentrically arranged relative to the nozzle structure at least at the jet outlet.

11. A beverage device, characterized in that: It comprises a water tank, a heating device arranged in the water tank, and a nozzle assembly according to any one of claims 1 to 10, wherein the nozzle assembly is connected to the water tank through the steam pipe.

Images