Beverage outlet structure and beverage dispenser

Abstract

The invention provides a beverage outlet structure and a beverage dispenser, the beverage outlet structure comprises an output pipe and a guide piece arranged in the output pipe, the output pipe is provided with an input end and an output end, an output opening is formed in the output end of the output pipe, and the guide piece extends in the axial direction of the output pipe and extends out of the output opening; a curved surface with a plurality of concave parts and a plurality of convex parts is formed on the end face of the output opening in the circumferential direction of the output pipe, the concave parts and the convex parts on the curved surface are arranged in turn in the circumferential direction of the output pipe, the guide piece comprises a plurality of blades, the number of the blades is the same as that of the convex parts, and the blades are arranged in the circumferential direction of the output pipe. One part, in the axial direction of the output pipe, of the multiple blades is located in the output pipe, the other part, in the axial direction of the output pipe, of the multiple blades extends out of the output opening, in the output direction of the output pipe, each blade is arranged between every two adjacent concave parts, and each concave part is arranged between every two adjacent blades.

Description

Technical Field

[0001] The invention relates to the technical field of beverage preparation, and in particular to a beverage outlet structure and a beverage machine. Background Art

[0002] With the improvement of people's living standards, beverage preparation machines are becoming more and more popular. For example, coffee machines can provide users with coffee quickly and conveniently, and have become a common product in offices, entertainment venues, and family life. For example, the existing coffee machines on the market that can produce Italian coffee, their brewers use high pressure to pre-cook and extract coffee to obtain Italian coffee. There is no reasonable drainage at the coffee outlet, the surface of the outlet is too regular, the coffee liquid with a fast flow rate and a certain self-pressure rushes out of the outlet of the beverage machine, which will cause splashing at the outlet, and this coffee liquid often has a layer of grease, which has good ductility. When using coffee beans with too high a fat content, it is easy to form bubbles and splashes at the outlet, which greatly affects the taste and experience of the coffee.

[0003] In order to avoid splashing, the existing beverage machine has a beverage supply nozzle (beverage output part), which has a nozzle body, and the nozzle body is provided with a distribution channel for distributing beverages. A rectifying plate is provided on the beverage outlet side of the distribution channel of the nozzle body to rectify the distributed beverage so that the beverage flowing out of the beverage supply nozzle hardly splashes out of the cup or other containers. In addition, notches are arranged in the circumferential direction of the beverage outlet to allow air in the liquid to escape. Although the rectifying plate can guide the outflow of the beverage liquid and prevent the flow direction from diverging, the setting of the notch will also produce hanging bubbles, thereby causing the flow direction of the beverage fluid to deviate from the guiding direction of the rectifying plate, which brings a bad experience to the user.

[0004] Therefore, it is necessary to further improve the existing technology. Summary of the invention

[0005] The object of the present invention is to provide an outlet structure which has a simple structure and can effectively improve the bubble hanging phenomenon.

[0006] Another object of the present invention is to provide a beverage machine with a simple structure and capable of effectively improving the bubble hanging phenomenon.

[0007] To achieve one of the above-mentioned objects, the present invention provides a beverage outlet structure, comprising an output tube and a guide member disposed in the output tube, wherein the output tube comprises an input end and an output end, the output end is formed with an output opening, and the guide member extends along the axial direction of the output tube and extends from the output opening;

[0008] The end surface of the output opening forms a curved surface with a plurality of recesses and a plurality of protrusions along the circumference of the output pipe, and the recesses and protrusions on the curved surface are arranged alternately along the circumference of the output pipe. The guide member includes a plurality of blades, the number of the plurality of blades is the same as the number of the plurality of protrusions, a portion of the plurality of blades along the axial direction of the output pipe is located inside the output pipe, and another portion of the plurality of blades along the axial direction of the output pipe extends from the output opening, and along the output direction of the output pipe, each blade is arranged between two adjacent recesses, and each recess is arranged between two adjacent blades.

[0009] As a further improvement of one embodiment of the present invention, the distance that the multiple blades extend from the output opening is greater than the height difference between adjacent recesses and protrusions, the distance that the multiple blades extend from the output opening is between 3-6 times the height difference between adjacent recesses and protrusions, the height difference between adjacent recesses and protrusions is greater than 1 mm, and the distance that the multiple blades extend from the output opening is greater than 4 mm.

[0010] As a further improvement of an embodiment of the present invention, the plurality of concave portions and the plurality of convex portions are arranged axially symmetrically in a non-uniform distribution along the circumference of the output tube.

[0011] As a further improvement of one embodiment of the present invention, the position of each blade corresponds to the highest point of the convex portion, the curved surface is constructed as a surface matching the sine wave, the convex portion is the crest, the concave portion is the trough, and the position of each blade corresponds to the highest point of each crest.

[0012] As a further improvement of one embodiment of the present invention, the amplitudes of the sinusoidal waves corresponding to the multiple peaks and multiple troughs on the curved surface are equal, the circumferential angles corresponding to two adjacent troughs along the circumference of the output tube are different, the circumferential angle corresponding to at least one trough is greater than the circumferential angle corresponding to the adjacent peaks, and the circumferential angle corresponding to at least one trough is smaller than the circumferential angle corresponding to the adjacent peaks.

[0013] As a further improvement of an embodiment of the present invention, the plurality of blades are 2-5 blades, and the angle between at least two adjacent blades is greater than or equal to 120 degrees.

[0014] As a further improvement of an embodiment of the present invention, the curved surface structure is one of two surfaces with an angle between the concave portion or the convex portion, an arc surface, and a surface matching a polygon, and the circumferential angle corresponding to at least one concave portion along the circumference of the output tube is greater than the circumferential angle corresponding to the adjacent convex portion, and the circumferential angle corresponding to at least one concave portion along the circumference of the output tube is less than the circumferential angle corresponding to the adjacent convex portion.

[0015] In another embodiment of the present invention, a beverage outlet structure is provided, comprising an output tube and a guide member disposed in the output tube, wherein the output tube has an input end and an output end, the output end is formed with an output opening, and the guide member extends along the axial direction of the output tube;

[0016] The end surface of the output opening forms a curved surface with a plurality of recesses and a plurality of protrusions along the circumference of the output pipe, the recesses and the protrusions on the curved surface are arranged alternately along the circumference of the output pipe, the guide member comprises a plurality of blades, the number of the plurality of blades is the same as the number of the plurality of recesses or the same as the number of the plurality of protrusions, the plurality of blades extend from the output opening along the axial direction of the output pipe, and along the circumference of the output pipe, the angle between at least one group of adjacent blades is different from the angle between another group of adjacent blades.

[0017] As a further improvement of an embodiment of the present invention, the curved surface is constructed as a surface matching a sine wave, the convex portion is a wave crest, the concave portion is a wave trough, and the position of each blade corresponds to the highest point of each wave crest.

[0018] As a further improvement of an embodiment of the present invention, the curved surface structure is one of two surfaces with an angle between the concave portion or the convex portion, an arc surface, and a surface matching a polygon, and the circumferential angle corresponding to at least one concave portion along the circumference of the output tube is greater than the circumferential angle corresponding to the adjacent convex portion, and the circumferential angle corresponding to at least one concave portion along the circumference of the output tube is less than the circumferential angle corresponding to the adjacent convex portion.

[0019] As a further improvement of one embodiment of the present invention, the position of each blade corresponds to the lowest point of the concave portion or the highest point of the convex portion, the height difference between adjacent concave portions and convex portions is greater than 1 mm, and the distance that the multiple blades extend from the output opening is greater than 4 mm.

[0020] The present invention further provides a coffee machine, comprising a main body, wherein the front portion of the main body is provided with a beverage outlet structure as described in any of the above embodiments.

[0021] Compared with the prior art, the beneficial effect of the present invention is that by setting the relative position between the blades and the two adjacent recesses, the coffee liquid with oily properties is not easy to form bubbles at the coffee outlet, or the bubbles can be quickly broken after forming, without affecting the flow direction of the coffee liquid and avoiding the phenomenon of hanging bubbles. By setting the end face of the output opening to form an uneven curved surface, the non-uniform distribution of multiple blades along the circumference of the output tube can also avoid hanging bubbles from different directions. Through the position design of the above-mentioned blades and recesses, or the distribution of multiple blades and the setting of the convex and concave surface of the end face of the output tube, hanging bubbles at the output opening are avoided or the formation of large bubbles is prevented, thereby preventing the beverage fluid from flowing along the large bubbles and deviating from the outflow direction, making the output of the beverage fluid more reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a three-dimensional schematic diagram of a beverage outlet structure according to one embodiment of the present invention.

[0023] Figure 2 yes Figure 1 A three-dimensional schematic diagram of the beverage outlet structure from another perspective.

[0024] Figure 3 yes Figure 2 Bottom view of the beverage outlet structure in.

[0025] Figure 4 yes Figure 2 Front view of the beverage outlet structure in.

[0026] Figure 5 yes Figure 4 Side view of the beverage outlet structure in.

[0027] Figure 6 yes Figure 4 A schematic cross-sectional view of the beverage outlet structure along line AA.

[0028] Figure 7 yes Figure 4 Schematic diagram of a beverage outlet structure in which the end surface of the output opening presents a sinusoidal profile along the circumferential direction.

[0029] Figure 8 yes Figure 4 Schematic diagram of the end surface of the output opening of the beverage outlet structure in the embodiment of the present invention presenting two surfaces with an angle along the circumferential contour.

[0030] Fig. 9 yes Figure 4 Schematic diagram of an end face of an output opening of a beverage outlet structure in which the profile along the circumferential direction is an arc surface.

[0031] Fig.10 yes Figure 4 The end face of the output opening of the beverage outlet structure in the embodiment has a surface schematic diagram matching a polygon along the circumferential contour.

[0032] Fig.11 It is a schematic diagram of a beverage outlet structure according to another embodiment of the present invention.

[0033] Fig.12 yes Fig.11 Bottom view of the beverage outlet structure in.

[0034] Fig.13 yes Fig.11 Side view of the beverage outlet structure in. DETAILED DESCRIPTION

[0035] The present invention will be described in detail below in conjunction with the specific embodiments shown in the accompanying drawings. However, these embodiments do not limit the present invention, and any structural, methodological, or functional changes made by a person skilled in the art based on these embodiments are all within the scope of protection of the present invention.

[0036] It should be understood that the terms used herein, such as "upper", "above", "lower", "below", etc., indicating spatial relative positions, are used for the purpose of convenience to describe the relationship of one unit or feature relative to another unit or feature as shown in the drawings. The terms of spatial relative positions may be intended to include different orientations of the device in use or operation other than the orientation shown in the drawings.

[0037] The beverage outlet structure in the specific embodiment of the present invention is described by taking the beverage outlet structure used in a coffee machine to dispense coffee liquid as an example. Figures 1 to 4 The beverage outlet structure 100 includes an output tube 20 and a guide member 30 disposed in the output tube 20. The output tube 20 has an input end and an output end. The input end of the output tube 20 is connected to the beverage machine. The output end of the output tube 20 is formed with an output opening 21. The guide member 30 extends along the axial direction of the output tube 20 and extends from the output opening 21. The axially extending guide member 30 can facilitate the drainage from the output opening 21, so that the beverage liquid flows out from the gap between the inner wall of the output tube 20 and the guide member 30, and the outflow of the beverage liquid is buffered to prevent the beverage liquid from splashing in an uncontrollable direction when it flows out from the output opening 21.

[0038] Among them, the end face of the output opening 21 forms a curved surface 22 with multiple recesses 221 and multiple protrusions 222 along the circumference of the output tube 20, that is, the end face of the output opening 21 forms an uneven contour along the circumference of the output tube 20, and the recesses 221 and protrusions 222 on the curved surface 22 are arranged alternately along the circumference of the output tube 20. The curved surface 22 on which the recesses 221 and the protrusions 222 are arranged alternately can have multiple highest points and multiple lowest points, forming an end face of the output opening 21 that undulates up and down. Compared with the case where the end face of the output opening is a plane, air in the beverage liquid can be discharged from the protrusions before bubbles are formed at the output opening, which can prevent the bubble blowing and the bubble hanging phenomenon at the output opening 21.

[0039] The guide member 30 includes a plurality of blades 31, the number of the plurality of blades 31 is the same as the number of the plurality of protrusions 222, a portion of the plurality of blades 31 along the axial direction of the output tube 20 is located inside the output tube 20, and another portion of the plurality of blades 31 along the axial direction of the output tube 20 extends from the output opening 21, and along the output direction of the output tube 20, each blade 31 is disposed between two adjacent recesses 221, and each recess 221 is disposed between two adjacent blades 31. By setting the relative positions between the blades 31 and the recesses 221 or the protrusions 222, it is not easy for the coffee liquid with oily characteristics to form bubbles at the output opening 21, or the bubbles formed can be quickly broken without affecting the flow direction of the coffee liquid and avoiding the phenomenon of hanging bubbles. Each blade 31 is arranged between two adjacent recesses 221, that is, the distance from the highest point of the convex part 222 of the blade between the two recesses 221 to the lowest point of the blade 31 is longer, and the bubbles will blow downward along the uneven wall surface of the output opening 21, with the convex part 222 on the top and the recess 221 on the bottom. More bubbles are blown on the top and the wall surface is thinner, so it is easy to break. In addition, due to the influence of gravity, air can enter more easily from the convex part 222, and the bubbles will burst when air enters, thereby avoiding the bubble hanging phenomenon.

[0040] Specifically, the distance H1 that the multiple blades 31 extend from the output opening 21 is greater than the height difference H2 between the adjacent recesses 221 and the protrusions 222. The distance H1 that the multiple blades 31 extend from the output opening 21 is between 3-6 times the height difference H2 between the adjacent recesses 221 and the protrusions 222, which ensures reasonable drainage and proper buffering, allowing the coffee liquid to flow out more smoothly, and when the coffee liquid flows out to blow bubbles, the bubbles are more likely to burst within the corresponding volume range. Among them, the height difference H2 between the adjacent recesses 221 and the protrusions 222 is preferably greater than 1mm, which can suppress the phenomenon of bubbles hanging when blowing bubbles at the output opening 21. The distance H1 that the multiple blades 31 extend from the output opening 21 is greater than 4mm, so that the bubbles can be blown larger when blowing bubbles, and the greater the height difference between the upper and lower bubbles, the easier it is for the bubbles to burst.

[0041] In this embodiment, preferably, the position of each blade corresponds to the highest point of the convex portion 222, and the distance from the highest point of the convex portion 222 to the lowest point of the blade 31 corresponding to the blade between the two concave portions 221 is the longest. The bubbles will blow downward along the uneven wall of the output opening 21, and the bubbles extend longer, making the wall thinner, so that the bubbles are easier to burst.

[0042] Furthermore, multiple recesses 221 and multiple protrusions 222 are arranged axially symmetrically in a non-uniform distribution along the circumference of the output tube 20. The non-uniform distribution can avoid bubble hanging from different directions. The area with a small gap between the recess 221 or the protrusion 222 and the blade 31 inhibits the generation of bubbles; the area with a large gap between the recess 221 or the protrusion 222 and the blade 31 allows the bubbles to be blown larger and easier to break. In this embodiment, four recesses 221 and four protrusions 222 are preferably arranged, and four corresponding blades 31 are also arranged. The angles of two adjacent blades 31 are different, and the angles of two opposite blades 31 are the same. The non-uniformly distributed axially symmetrical arrangement can also make the output of coffee liquid more stable.

[0043] Reference Figures 4 to 7 In this embodiment, the curved surface 22 on the end surface of the output opening 21 is preferably configured as a curved surface matching the sine wave, the convex portion 222 is a wave crest, the concave portion 221 is a wave trough, and the position of each blade 31 corresponds to the highest point of each wave crest. The curved surface matching the sine wave is relatively regular, the ventilation position is relatively smooth and uniform along the direction of the curved surface, and the appearance structure of the end surface of the output opening 21 is standardized. Figure 7 , a schematic diagram of a sine wave matching the contour of the end face of the output opening 21 along the circumferential direction is shown, wherein the amplitudes A1 and A2 of the sine waves corresponding to the multiple crests and the multiple troughs on the curved surface 22 are equal, and the circumferential angles corresponding to the two adjacent troughs along the circumference of the output tube are different, that is, the circumferential angles corresponding to the trough G1 and the trough G2 are different; the circumferential angle corresponding to at least one trough is greater than the circumferential angle corresponding to the adjacent crest, for example, the circumferential angle corresponding to the trough G2 is greater than the circumferential angle corresponding to the crest F1; the circumferential angle corresponding to at least one trough is smaller than the circumferential angle corresponding to the adjacent crest, for example, the circumferential angle corresponding to the trough G1 is smaller than the circumferential angle corresponding to the crest F1. In other words, the angle of the surface where at least one trough is located around the circumference of the output tube 20 is greater than the angle of the surface where the adjacent crest is located around the circumference of the output tube 20, and the angle of the surface where at least one trough is located around the circumference of the output tube 20 is smaller than the angle of the surface where the adjacent crest is located around the circumference of the output tube 20. The trough is sandwiched between the two blades 31 , which can not only suppress the generation of bubbles, but also make the bubbles more easily burst when large bubbles are generated, thereby avoiding the phenomenon of bubbles hanging at the output opening 21 .

[0044] In addition, the plurality of blades 31 are 2-5 blades. Under the premise that the size of the output opening 21 is certain, too many blades 31 may easily lead to unsmooth water discharge. Among them, the angle between at least two adjacent blades 31 is greater than or equal to 120 degrees, which is more convenient for drainage. In this embodiment, four blades 31 are preferably used, and every two blades 31 of the four blades 31 are arranged in a straight line, and the two groups of blades 31 in a straight line are crossed, but the two groups of blades 31 in a straight line are not arranged vertically. Preferably, the obtuse angle between the two groups of blades 31 in a straight line is 120 degrees. Based on the drainage effect of the blades 31, the gap between the blades 31 and the inner wall surface of the output opening 21, the drainage effect, the effect of suppressing bubbles and the effect of promoting bubble bursting are the best.

[0045] In other embodiments, Figure 8 As shown, the curved surface 22 is constructed as two surfaces with an angle between the concave portion 221 or the convex portion 222, that is, a curved surface similar to a triangular wave; Fig. 9 As shown, the curved surface 22 is structured as a concave portion 221 or a convex portion 222 in an arc surface; Fig.10 As shown, the curved surface 22 is constructed as a concave portion 221 or a convex portion 222 that is a surface matching a polygon; in the above-mentioned curved surface 22, the circumferential angle corresponding to at least one concave portion 221 along the circumference of the output tube 20 is greater than the circumferential angle corresponding to the adjacent convex portion 222, and the circumferential angle corresponding to at least one concave portion 221 along the circumference of the output tube 20 is smaller than the circumferential angle corresponding to the adjacent convex portion 222. In other words, as long as the curved surface 22 is set as an up-and-down undulating surface, it is not easy to generate bubbles, and the distribution of the concave portion 221 and the convex portion 222 along the circumference of the output tube 20 can not only inhibit the generation of bubbles, but also make it easier to break the bubbles when large bubbles are generated, thereby avoiding the phenomenon of bubbles hanging on the output opening 21.

[0046] In another embodiment of the present invention, referring to Figure 11 to Figure 13The beverage outlet structure 200 includes an output tube 20a and a guide member 30 disposed in the output tube 20a. The output tube 20a has an input end and an output end. The input end of the output tube 20a is connected to the beverage machine. The output end of the output tube 20a is formed with an output opening 21a. The guide member 30 extends along the axial direction of the output tube 20a. The end surface of the output opening 21a is formed with a curved surface 22a having a plurality of concave portions 221a and a plurality of convex portions 222a along the circumferential direction of the output tube 20a. The concave portions 221a and the convex portions 222a on the curved surface 22a are The portions 222a are arranged alternately along the circumference of the output tube 20a, and the guide member 30 includes a plurality of blades 31, the number of the plurality of blades 31 is the same as the number of the plurality of convex portions 221a or the same as the number of the plurality of concave portions 222a, and the plurality of blades 31 extend from the output opening 21a along the axial direction of the output tube 20a, and along the circumference of the output tube 20a, the angle between at least one group of adjacent blades is different from the angle between another group of adjacent blades, that is, the plurality of blades 31 are non-uniformly distributed along the circumference of the output tube 20a. The blades 31 may correspond to the positions of the concave portions 221a or the convex portions 222a, and when the blades 31 correspond to the convex portions 222a, the non-uniform distribution can avoid hanging bubbles from different directions, and the area with a small gap between the concave portion 221a or the convex portion 222a and the blades 31 inhibits the generation of bubbles; the area with a large gap between the concave portion 221a or the convex portion 222a and the blades 31 allows the bubbles to be blown larger and thus easily broken. When the blade 31 corresponds to the recess 222a, the air flowing out of the coffee liquid can overflow from the gap between the protrusion 221a and the blade 31 before reaching the recess 222a, thereby avoiding the generation of bubbles. The blade 31 can also achieve smoother drainage of the coffee liquid.

[0047] In this embodiment, the blades 31 correspond to the concave portions 221a of the curved surface 22a, and the plurality of blades 31 are non-uniformly distributed along the circumference of the output pipe 20a, which can also prevent bubbles from hanging in different directions.

[0048] Preferably, the curved surface 22a can be configured as a surface matching a sine wave, the convex portion 222a is a wave crest, the concave portion 221a is a wave trough, and the position of each blade 31 corresponds to the highest point of each wave crest. The sine curved surface is relatively regular, the air permeable position is relatively smooth and uniform along the direction of the curved surface, and the appearance structure specifications of the output opening end surface are met.

[0049] Of course, the curved surface 22a can also be constructed as one of two faces with an angle between the concave portion 221a or the convex portion 222a, an arc surface, or a face matching a polygon, and the circumferential angle corresponding to at least one concave portion 221a along the circumference of the output tube 20a is greater than the circumferential angle corresponding to the adjacent convex portion 222a, and the circumferential angle corresponding to at least one concave portion 221a along the circumference of the output tube 20a is less than the circumferential angle corresponding to the adjacent convex portion 222a. Similarly, as long as the curved surface 22a is set as an up-and-down undulating surface, it is not easy to blow bubbles, and the distribution of the concave portion 221a and the convex portion 222a along the circumference of the output tube 20a can not only inhibit the generation of bubbles, but also make it easier to break the bubbles when large bubbles are generated, thereby avoiding the phenomenon of bubbles hanging at the output opening.

[0050] In this embodiment, the position of each blade corresponds to the lowest point of the recess 221a or the highest point of the convex portion 222a, the height difference between adjacent recesses 221a and convex portions 222a is greater than 1 mm, the distance that the multiple blades 31 extend from the output opening 21a is greater than 4 mm, and the distance that the multiple blades 31 extend from the output opening 21a is between 3-6 times the height difference between adjacent recesses 221a and convex portions 222a, which ensures reasonable drainage and achieves appropriate buffering, allowing the coffee liquid to flow out more smoothly, and when the coffee liquid flows out to blow bubbles, the bubbles are easier to burst within the corresponding volume range.

[0051] In addition, the plurality of blades 31 are 2-5 blades. Under the premise that the size of the output opening 21a is certain, too many blades 31 may easily lead to unsmooth water discharge. Among them, the angle between at least two adjacent blades 31 is greater than or equal to 120 degrees, which is more convenient for drainage. In this embodiment, four blades 31 are preferably used, and every two blades 31 of the four blades 31 are arranged in a straight line, and the two groups of blades 31 in a straight line are crossed, and the two groups of blades 31 in a straight line are non-vertically arranged. Preferably, the obtuse angle between the two groups of blades 31 in a straight line is 120 degrees. Based on the drainage of the blades 31, the gap between the blades 31 and the inner wall of the output opening 21a, the drainage effect, the effect of suppressing bubbles and the effect of promoting bubble bursting are the best.

[0052] In the above embodiment, the height H3 of the plurality of blades 31 in the output tube 20 is greater than the height H1 extending out of the output opening 21. Preferably, the height H3 of the plurality of blades 31 in the output tube 20 is between 1.5 and 4 times the height H1, so that the coffee liquid can be better drained. The beverage outlet structure 100 may include two output tubes 20, each of which has the same or different structures, so that coffee liquid can be discharged to two cups at the same time. Of course, more output tubes may be provided to output different beverages based on the different beverages brewed by the beverage machine.

[0053] The present invention also relates to a beverage machine, comprising a main body, wherein the front part of the main body is provided with a beverage outlet structure 100 as in the above embodiment. The beverage machine can be a device for brewing beverages such as a tea machine, a coffee machine, a milk tea machine, etc.

[0054] The beverage outlet structure and beverage machine of the present invention, by setting the relative position between the blades and two adjacent recesses, make it difficult for coffee liquid with oily properties to form bubbles at the coffee outlet, or the bubbles can be quickly broken after forming, without affecting the flow direction of the coffee liquid and avoiding the phenomenon of hanging bubbles. By setting the end face of the output opening to form an uneven curved surface, multiple blades are unevenly distributed along the circumference of the output tube, which can also avoid hanging bubbles from different directions. Through the position design of the above-mentioned blades and recesses, or the distribution of multiple blades and the setting of the convex and concave surface of the end face of the output tube, bubbles are avoided from hanging at the output opening or the formation of large bubbles is prevented, thereby preventing the beverage fluid from flowing along the large bubbles and deviating from the outflow direction, making the output of the beverage fluid more reliable.

[0055] It should be understood that although this specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each implementation mode may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

[0056] The series of detailed descriptions listed above are only specific descriptions of feasible implementation methods of the present invention. They are not intended to limit the scope of protection of the present invention. Any equivalent implementation methods or changes that do not deviate from the technical spirit of the present invention should be included in the scope of protection of the present invention.

Claims

1. A beverage outlet structure, comprising an output tube and a guide member disposed in the output tube, wherein the output tube has an input end and an output end, the output end is formed with an output opening, and the guide member extends along the axial direction of the output tube and extends from the output opening; Features: The end surface of the output opening forms a curved surface with a plurality of recesses and a plurality of protrusions along the circumference of the output pipe, and the recesses and protrusions on the curved surface are arranged alternately along the circumference of the output pipe. The guide member includes a plurality of blades, the number of the plurality of blades is the same as the number of the plurality of protrusions, a portion of the plurality of blades along the axial direction of the output pipe is located inside the output pipe, and another portion of the plurality of blades along the axial direction of the output pipe extends from the output opening, and along the output direction of the output pipe, each blade is arranged between two adjacent recesses, and each recess is arranged between two adjacent blades.

2. The beverage outlet structure according to claim 1, characterized in that: The distance that the multiple blades extend from the output opening is between 3-6 times the height difference between adjacent recesses and protrusions, the height difference between adjacent recesses and protrusions is greater than 1 mm, and the distance that the multiple blades extend from the output opening is greater than 4 mm.

3. The beverage outlet structure according to claim 1, characterized in that: The plurality of concave portions and the plurality of convex portions are arranged axially symmetrically in a non-uniform distribution along the circumference of the output pipe.

4. The beverage outlet structure according to claim 1, characterized in that: The position of each blade corresponds to the highest point of the convex part, the curved surface is configured as a surface matching a sine wave, the convex part is a wave crest, the concave part is a wave trough, and the position of each blade corresponds to the highest point of each wave crest.

5. The beverage outlet structure according to claim 4, characterized in that: The amplitudes of the sinusoidal waves corresponding to the multiple crests and the multiple troughs on the curved surface are equal, the circumferential angles corresponding to two adjacent troughs along the circumference of the output tube are different, the circumferential angle corresponding to at least one trough is greater than the circumferential angle corresponding to the adjacent crests, and the circumferential angle corresponding to at least one trough is smaller than the circumferential angle corresponding to the adjacent crests.

6. The beverage outlet structure according to claim 1, characterized in that: The plurality of blades are 2 to 5 blades, and the angle between at least two adjacent blades is greater than or equal to 120 degrees.

7. The beverage outlet structure according to claim 1, characterized in that: The curved surface structure is one of two surfaces with an angle between the concave part or the convex part, an arc surface, and a surface matching a polygon. The circumferential angle corresponding to at least one concave part along the circumference of the output tube is greater than the circumferential angle corresponding to the adjacent convex part, and the circumferential angle corresponding to at least one concave part along the circumference of the output tube is smaller than the circumferential angle corresponding to the adjacent convex part.

8. A beverage outlet structure, comprising an output tube and a guide member disposed in the output tube, wherein the output tube has an input end and an output end, the output end is formed with an output opening, and the guide member extends along the axial direction of the output tube; Features: The end surface of the output opening forms a curved surface with a plurality of recesses and a plurality of protrusions along the circumference of the output pipe, the recesses and the protrusions on the curved surface are arranged alternately along the circumference of the output pipe, the guide member comprises a plurality of blades, the number of the plurality of blades is the same as the number of the plurality of recesses or the same as the number of the plurality of protrusions, the plurality of blades extend from the output opening along the axial direction of the output pipe, and along the circumference of the output pipe, the angle between at least one group of adjacent blades is different from the angle between another group of adjacent blades.

9. The beverage outlet structure according to claim 8, characterized in that: The curved surface is configured as a surface matching a sine wave, the convex portion is a wave crest, the concave portion is a wave trough, and the position of each blade corresponds to the highest point of each wave crest.

10. The beverage outlet structure according to claim 8, characterized in that: The curved surface structure is one of two surfaces with an angle between the concave part or the convex part, an arc surface, and a surface matching a polygon. The circumferential angle corresponding to at least one concave part along the circumference of the output tube is greater than the circumferential angle corresponding to the adjacent convex part, and the circumferential angle corresponding to at least one concave part along the circumference of the output tube is smaller than the circumferential angle corresponding to the adjacent convex part.

11. The beverage outlet structure according to claim 8, characterized in that: The position of each blade corresponds to the lowest point of the concave portion or the highest point of the convex portion, the height difference between adjacent concave portions and convex portions is greater than 1 mm, and the distance that the multiple blades extend from the output opening is greater than 4 mm.

12. A beverage machine, comprising a main body, characterized in that: The front part of the main body is provided with a beverage outlet structure as claimed in any one of claims 1 to 11.

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