Beverage outlet structure and beverage machine

Abstract

A beverage outlet structure comprising a dispensing tube and a guide member arranged in the dispensing tube, wherein the dispensing tube is provided with an input end and an output end, wherein an output opening is formed at the output end, and the guide member extends along an axial direction of the dispensing tube and projects from the output opening, characterized in that, at the output opening, the dispensing tube has a plurality of concave parts and a plurality of convex parts arranged along a circumferential direction of the dispensing tube, wherein the plurality of concave parts and the plurality of convex parts form a curved surface on an end face of the output opening, and a concave part within the plurality of concave parts and a convex part within the plurality of convex parts are arranged alternating with each other along the circumferential direction of the dispensing tube;The guide member includes a plurality of blades, and a number of the plurality of blades is the same as a number of the plurality of convex parts; a part of each of the plurality of blades, along the axial direction of the output tube, lies within the output tube, and another part of the blade, along the axial direction of the output tube, projects from the output opening; and along the circumferential direction of the output tube, the blade is provided between two adjacent concave parts, and the concave part is provided between two adjacent blades.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of beverage preparation technologies and, more particularly, to a beverage outlet structure and a beverage machine. STATE OF THE ART

[0002] With the improvement of people's living standards, beverage preparation machines are becoming increasingly popular. For example, coffee machines can provide users with convenient and quick coffee, and coffee machines have become a common product in offices, entertainment venues, and family life. For example, an existing coffee machine on the market that can produce espresso coffee uses a high-pressure brewing device to pre-brew and extract the coffee to obtain espresso coffee.There is no adequate liquid routing at the coffee outlet, an outlet surface is too regular, and coffee liquid has a fast flow rate and has a certain pressure, so that when the coffee liquid flows out of the outlet of the coffee machine, it may splash at the outlet; and this type of coffee liquid usually has a film of fat, and this fat has good ductility, so if coffee beans with too high fat content are used, bubbles or splashing are easy to form at the outlet, which can greatly affect the taste of the coffee and the experience.

[0003] To prevent splashing, an existing beverage machine is provided with a beverage feeding nozzle (a beverage dispensing section). The beverage feeding nozzle is provided with a nozzle body. The nozzle body is provided with a distribution channel for distributing beverages. A beverage outlet side of the distribution channel of the nozzle body is provided with a rectifying plate for rectifying and distributing beverages, so that the beverages flowing out of the beverage feeding nozzle are hardly splashed out of a cup or other container. Furthermore, a notch is circumferentially arranged at the beverage outlet to allow air in the liquid to escape.Although the arrangement of the rectification plate can guide beverage liquid to flow out in such a way as to prevent the flow direction of the beverage liquid from diverging, bubble hanging is still generated due to the arrangement of the notch, so that the flow direction of the beverage liquid deviates from a guide direction of the rectification plate, resulting in a bad experience for users.

[0004] Therefore, further improvements to existing technologies are needed. OVERVIEW

[0005] A purpose of the present application is to provide an outlet structure that is simple and can effectively improve a bubble hanging phenomenon.

[0006] Another purpose of the present application is to provide a beverage machine that is simple and can effectively improve a bubble hanging phenomenon.

[0007] To achieve one of the above purposes, the present application provides a beverage outlet structure including a dispensing tube and a guide member disposed in the dispensing tube, the dispensing tube being provided with an input end and a discharge end, a discharge opening being formed at the discharge end, and the guide member extending along an axial direction of the dispensing tube and protruding from the discharge opening.

[0008] At the discharge opening, the discharge tube has a plurality of concave parts and a plurality of convex parts arranged along a circumferential direction of the discharge tube, the plurality of concave parts and the plurality of convex parts forming a curved surface on an end surface of the discharge opening, a concave part in the plurality of concave parts and a convex part in the plurality of convex parts being arranged alternately with each other along the circumferential direction of the discharge tube; the guide member comprises a plurality of blades, and a number of the plurality of blades is the same as a number of the plurality of convex parts; a part of each of the plurality of blades is located inside the discharge tube along the axial direction of the discharge tube, and another part of the blade is protruded from the discharge opening along the axial direction of the discharge tube;and along the circumferential direction of the discharge tube, the blade is provided between two adjacent concave parts and the concave part is provided between two adjacent blades.;

[0009] As a further improvement of an embodiment of the present application, along the axial direction of the dispensing tube, a distance by which the blade protrudes from the dispensing opening corresponds to three to six times a height difference between a concave part and a convex part that are adjacent to each other, wherein the height difference between the concave part and the convex part that are adjacent to each other is greater than 1 mm and the distance by which the blade protrudes from the dispensing opening is greater than 4 mm.

[0010] As a further improvement of an embodiment of the present application, the plurality of concave parts and the plurality of convex parts are unevenly distributed along the circumferential direction of the discharge tube, the plurality of concave parts are symmetrically arranged along the axial direction of the discharge tube, and the plurality of convex parts are symmetrically arranged along the axial direction of the discharge tube.

[0011] As a further improvement of an embodiment of the present application, a position where the blade is located corresponds to a position where a highest point of the convex part is located, the curved surface is constructed as a surface that conforms to a sine wave, a position where the highest point of the convex part is located corresponds to a wave crest, a position where a lowest point of the concave part is located corresponds to a wave trough, and the position where the blade is located corresponds to the wave crest.

[0012] As a further improvement of an embodiment of the present application, an amplitude of the sine wave corresponding to a plurality of wave crests on the curved surface is equal to an amplitude of the sine wave corresponding to a plurality of wave troughs on the curved surface; when circumferential angles corresponding to two adjacent wave troughs are different along the circumferential direction of the output tube, a circumferential angle corresponding to at least one wave trough is larger than a circumferential angle corresponding to a wave crest adjacent to a corresponding wave trough, and a circumferential angle corresponding to at least one other wave trough is smaller than a circumferential angle corresponding to a wave crest adjacent to a corresponding wave trough.

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

[0014] As a further improvement of an embodiment of the present application, the curved surface is constructed as one of three types of a plurality of connected surfaces, each surface including two partial surfaces having an angle, a plurality of connected arc surfaces, and a plurality of connected surfaces, each surface conforming to a polygon; along the circumferential direction of the discharge tube, a circumferential angle corresponding to at least one concave part is larger than a circumferential angle corresponding to a convex part adjacent to a corresponding concave part, and a circumferential angle corresponding to at least one other concave part is smaller than a circumferential angle corresponding to a convex part adjacent to a corresponding concave part.

[0015] As a further improvement of an embodiment of the present application, the present application provides a beverage outlet structure including a dispensing tube and a guide member disposed in the dispensing tube, the dispensing tube being provided with an input end and a discharge end, a discharge opening being formed at the discharge end, and the guide member extending along an axial direction of the dispensing tube and protruding from the discharge opening.

[0016] At the discharge opening, the discharge tube has a plurality of concave parts and a plurality of convex parts arranged along a circumferential direction of the discharge tube, the plurality of concave parts and the plurality of convex parts forming a curved surface on an end surface of the discharge opening, a concave part in the plurality of concave parts and a convex part in the plurality of convex parts being arranged alternately with each other along the circumferential direction of the discharge tube, the guide member comprising a plurality of blades, a number of the plurality of blades being the same as a number of the plurality of concave parts or a number of the plurality of convex parts,each of the plurality of blades protrudes from the dispensing opening along the axial direction of the dispensing tube, and along the circumferential direction of the dispensing tube, an angle between each of at least one pair of adjacent blades is different from an angle between another pair of adjacent blades.

[0017] As a further improvement of an embodiment of the present application, a position where the blade is located corresponds to a position where a lowest point of the concave part is located or a position where the highest point of the convex part is located, and along the axial direction of the discharge tube, a height difference between a concave part and a convex part adjacent to each other is greater than 1 mm and a distance by which the blade protrudes from the discharge opening is greater than 4 mm.

[0018] The present application also provides a beverage machine comprising a main body, and the beverage outlet structure is provided on the main body in any of the above embodiments.

[0019] Compared with related technologies, the present application has the following advantageous effects: the relative position between the blade and two adjacent concave parts is adjusted, so that coffee liquid with a greasy characteristic is not easily bubbled at the coffee outlet, and bubbles cannot break quickly after they are formed, while the flow direction of the coffee liquid is not affected, and the bubble hanging phenomenon is avoided. An unevenly curved surface is formed on the end face of the discharge opening, and the blades are unevenly distributed along the circumferential direction of the discharge tube, thus also preventing bubble hanging from different directions.The relative position between the blade and the concave part is designed or the distribution of the blades and the uneven curved surface on the end surface of the dispensing tube are adjusted so as to avoid the bubble hanging at the dispensing port or prevent the generation of large bubbles, thereby preventing beverage liquid from deviating from a discharge direction due to flow of the beverage liquid along the large bubbles, and further making discharge of the beverage liquid relatively reliable. BRIEF DESCRIPTION OF THE CHARACTERS Fig. 1 is a three-dimensional schematic representation of a beverage outlet structure according to an embodiment of the present application. Fig. 2 is a three-dimensional schematic representation of another perspective view of the beverage outlet structure in Fig. 1. Fig. 3 is a bottom view of the beverage outlet structure in Fig. 2. Fig. 4 is a front view of the beverage outlet structure in Fig. 2. Fig. 5 is a side view of the beverage outlet structure in Fig. 4. Fig. 6 is a cross-sectional view of the beverage outlet structure taken along line AA in Fig. 4. Fig. Figure 7 is a schematic representation of a contour of an end surface, represented by a sine wave, of a dispensing opening of the beverage outlet structure in Fig. 4 along a circumferential direction. Fig. Figure 8 is a schematic representation of a contour of an end surface, represented by two surfaces with an angle, of a dispensing opening of the beverage outlet structure in Fig. 4 along a circumferential direction. Fig. Fig. 9 is a schematic representation of a contour of an end surface, represented by an arc surface, of a dispensing opening of the beverage outlet structure in Fig. 4 along a circumferential direction. Fig. Fig. 10 is a schematic representation of a contour of an end surface, represented by a surface that coincides with a polygon, of a dispensing opening of the beverage outlet structure in Fig. 4 along a circumferential direction. Fig. 11 is a schematic diagram of a beverage outlet structure according to another embodiment of the present application. Fig. 12 is a bottom view of the beverage outlet structure in Fig. 11. Fig. 13 is a side view of the beverage outlet structure in Fig. 11. DETAILED DESCRIPTIONS OF THE EMBODIMENTS

[0020] The following provides a detailed description of the present application with reference to the embodiments shown in the accompanying drawings. These embodiments are not intended to limit the present application; structural, methodological, or functional changes made by one skilled in the art based on these embodiments are intended to be within the scope of the present application.

[0021] It should be understood that terms for representing spatial relative positions, such as "on," "above," "down," and "below," are for illustrative purposes only, to describe a relationship between one entity and another entity, or one feature and another feature, shown in the accompanying drawings. The terms for spatial relative positions may imply different orientations, apart from the orientations in the accompanying drawings, when equipment is in use or operation.

[0022] A beverage outlet structure in the embodiments of the present application is described, for example, as a beverage outlet structure of a coffee machine for distributing coffee liquid. Referring to Fig. 1 to Fig. 4, a beverage outlet structure 100 includes a dispensing tube 20 and a guide member 30 disposed in the dispensing tube 20, the dispensing tube 20 is provided with an input end and a discharge end, the input end of the dispensing tube 20 is connected to a beverage machine, a discharge opening 21 is formed at the discharge end of the dispensing tube 20, and the guide member 30 extends along an axial direction of the dispensing tube 20 and protrudes from the discharge opening 21.With the arrangement of the guide member 30 extending along the axial direction, liquid guidance from the discharge port 21 can be facilitated so that beverage liquid flows out from a gap between an inner wall of the discharge tube 20 and the guide member 30 to buffer the outflow of the beverage liquid, thereby preventing splashing in an uncontrolled direction which is generated when the beverage liquid flows out from the discharge port 21.

[0023] At the discharge opening 21, the discharge tube 20 has a plurality of concave parts 221 and a plurality of convex parts 222 arranged along a circumferential direction of the discharge tube 20, the plurality of concave parts 221 and the plurality of convex parts 222 form a curved surface 22 at an end surface of the discharge opening 21, ieAn uneven contour is formed on the end surface of the dispensing opening 21 along the circumferential direction of the dispensing tube 20. A concave part in the plurality of concave parts 221 and a convex part in the plurality of convex parts 222 on the curved surface 22 are arranged alternately with each other along the circumferential direction of the dispensing tube 20. The curved surface 22 with the plurality of concave parts 221 and the plurality of concave parts 222 arranged alternately has a plurality of highest points and a plurality of lowest points to form an uneven end surface of the dispensing opening 21. With respect to a situation where an end surface of the dispensing opening is planar, air in the beverage liquid can be discharged from the convex part 222 before bubbles are formed at the dispensing opening 21, thus preventing a bubble hanging phenomenon at the dispensing opening 21 due to bubble formation.

[0024] A person skilled in the art can understand that in the present application, along the axial direction of the dispensing tube 20, a part of the dispensing opening 21 that protrudes in a direction of beverage outflow is defined as a concave part 221, and a part of the dispensing opening 21 that bulges in a direction opposite to the direction of beverage outflow is defined as a convex part 222. For example, in the figures shown in Fig. 4 and Fig. 5 views shown, from one in Fig. 4 and Fig. 5, as for the end surface of the discharge opening 21 (ie, the curved surface 22), a part that is bulged downward is the concave part 221 corresponding to the part of the discharge opening 21 that protrudes downward; and a part that is bent upward is the convex part 222 corresponding to the part of the discharge opening 21 that is bulged upward.

[0025] The guide member 30 includes a plurality of blades 31, and a number of the plurality of blades 31 is the same as a number of the plurality of convex parts 222, a part, along the axial direction of the discharge tube 20, of each of the plurality of blades 31 is located inside the discharge tube 20, another part, along the axial direction of the discharge tube 20, of each of the plurality of blades 31 protrudes from the discharge opening 21, and along the circumferential direction of the discharge tube 20, each of the plurality of blades 31 is provided between two adjacent concave parts 221, and each of the plurality of concave parts 221 is provided between two adjacent blades 31.A relative position between the blade 31 and the concave part 221 or a relative position between the blade 31 and the convex part 222 is adjusted so that coffee liquid with greasy characteristics does not easily form bubbles at the discharge opening 21 or bubbles can quickly break after being formed, while not affecting a flow direction of the coffee liquid and avoiding the bubble hanging phenomenon. Each of the plurality of blades 31 is provided between the two adjacent concave parts 221, that is, a distance between a highest point of the convex part 222 corresponding to the blade between two concave parts 221 (that is, a boundary position between a part of the blade 31 lying inside the discharge opening 21 and a part of the blade 31 lying outside the discharge opening 21) and a lowest point of the blade 31 (that is,one end, away from the discharge opening 21, along the direction of beverage outflow, of the blade 31) is relatively long, the bubbles are blown downward along a wall surface of the uneven discharge opening 21, the convex part 222 is at the top and the concave part 221 is at the bottom, and more air blows at the top, which makes the bubbles on the walls relatively thin, so that the bubbles are relatively easy to break; in addition, under the influence of gravity, air can enter relatively easily from the convex part 222, and the bubbles can also break after the air enters, thereby avoiding the bubble hanging phenomenon.

[0026] Specifically, along the axial direction of the discharge tube 20, a distance H1 by which each of the plurality of blades 31 protrudes from the discharge opening 21 is greater than a height difference H2 between the concave part 221 and the convex part 222 that are adjacent to each other, and the distance H1 by which each of the plurality of blades 31 protrudes from the discharge opening 21 is three to six times the height difference H2 between the concave part 221 and the convex part 222 that are adjacent to each other, thereby not only ensuring appropriate liquid guidance to achieve appropriate buffering and allowing coffee liquid to flow out relatively smoothly, but also ensuring that bubbles in a corresponding volume range break relatively easily when coffee liquid flows out and forms the bubbles.Specifically, the height difference H2 between the concave part 221 and the convex part 222 adjacent to each other is greater than 1 mm, so as to suppress the bubble hanging phenomenon due to bubble formation at the discharge opening 21. The distance H1 by which each of the plurality of blades 31 protrudes from the discharge opening 21 is greater than 4 mm, so that the bubbles, when formed, are relatively large, and a height difference between the top and bottom of the bubbles is relatively large, so that the bubbles are relatively easy to break.

[0027] In this embodiment, specifically, a position where each of the plurality of blades 31 is located corresponds to a position where a highest point of the convex part 222 is located, the distance between the highest point of the convex part 222 corresponding to the blade 31 between two concave parts 221 and the lowest point of the blade 31 is relatively long, the bubbles are blown downward along the wall surface of the uneven discharge opening 21 and the bubbles extend over a relatively long distance, whereby the bubbles on the walls become relatively thin, so that the bubbles are relatively easy to break.

[0028] Furthermore, the plurality of concave portions 221 are arranged symmetrically along the axial direction of the discharge tube 20, and the plurality of convex portions 222 are arranged symmetrically along the axial direction of the discharge tube 20, and the plurality of concave portions 221 and the plurality of convex portions 222 are unevenly distributed along the circumferential direction of the discharge tube 20. This uneven distribution can prevent bubbles from hanging from different directions, and at a region formed by a small gap between the concave portion 221 and the blade 31 or between the convex portion 222 and the blade 31, generation of bubbles is suppressed; and at a region formed by a large gap between the concave portion 221 and the blade 31 or between the convex portion 222 and the blade 31, relatively large bubbles are formed, causing bubbles to break relatively easily.In this embodiment, specifically, four concave parts 221 and four convex parts 222 are provided, accordingly, the number of the corresponding blades 31 is also set to four, an angle is formed between two adjacent blades 31, two adjacent angles have different degrees, two opposite angles have the same degree, and uneven distribution and axisymmetric adjustment can also make dispensing of the coffee liquid relatively stable.

[0029] Referring to Fig. 4. to Fig. 7, in this embodiment, the curved surface 22 is specifically constructed as a curved surface conforming to a sine wave. A position where the highest point of the convex part 222 is located corresponds to a wave crest, a position where the lowest point of the concave part 221 is located corresponds to a wave trough, and the position where each of the plurality of blades 31 is located corresponds to each wave crest. A shape of the curved surface 22 conforming to the sine wave is relatively regular, so that a ventilation position is relatively smooth and uniform along a course of the curved surface 22, and the appearance and configuration of the end surface of the discharge port 21 are standard. Fig. Fig. 7 shows a schematic diagram of a contour of the end surface, represented by the sine wave, of the discharge opening 21 along the circumferential direction, an amplitude A1 of the sine wave corresponding to a plurality of wave crests on the curved surface 22 is equal to an amplitude A2 of the sine wave corresponding to a plurality of wave troughs on the curved surface 22, and along the circumferential direction of the discharge tube 20, circumferential angles corresponding to two adjacent wave troughs are different, iea circumferential angle corresponding to the trough G1 is different from a circumferential angle corresponding to the trough G2; a circumferential angle corresponding to at least one trough is greater than a circumferential angle corresponding to a crest adjacent to a corresponding trough, for example, a circumferential angle corresponding to the trough G2 is greater than a circumferential angle corresponding to the crest F1; and, for example, a circumferential angle corresponding to at least one other trough is less than a circumferential angle corresponding to a crest adjacent to a corresponding trough, and a circumferential angle corresponding to the trough G1 is less than a circumferential angle corresponding to the crest F2.That is, an angle formed by an area in which at least one trough surrounding the circumferential direction of the discharge tube 20 lies is larger than an angle formed by an area in which the crest adjacent to the corresponding trough surrounding the circumferential direction of the discharge tube 20 lies, and an angle formed by an area in which at least one other trough surrounding the circumferential direction of the discharge tube 20 lies is smaller than an angle formed by an area in which the crest adjacent to the corresponding trough surrounding the circumferential direction of the discharge tube 20 lies. As in . Fig. As shown in Figure 7, the circumferential angle in the present application refers to an angle β formed by two lines, the two lines being formed by connecting one of the trough and the crest with two intersection points each intersecting the X-axis of the sine wave. This circumferential angle is not necessarily defined as a circumferential angle in the present application, but is used as an analogy to the circumferential angle. The trough is located between two blades 31, which not only suppresses the generation of bubbles but also allows the bubbles to break relatively easily when large bubbles are generated, thereby avoiding the bubble hanging phenomenon at the discharge port 21.

[0030] Furthermore, the plurality of blades 31 includes 2-5 blades, and under the premise of a certain size of the discharge opening 21, water discharge is not smooth due to the excessive number of blades 31. An angle between each of at least one pair of adjacent blades 31 is greater than or equal to 120 degrees, making it relatively easy to guide liquid.In this embodiment, specifically, four blades 31 are adopted, every two blades 31 opposite to each other of the four blades 31 are arranged in a straight line, two groups of the two blades 31 in a straight line are crossed, but the two groups of the two blades 31 in a straight line are not arranged vertically, specifically, an angle between the two groups of the two blades 31 in a straight line is an obtuse angle of 120 degrees, and based on a liquid guiding role of the blade 31, at a gap between the blade 31 and an inner wall surface of the discharge port 21, a liquid guiding effect, a bubble suppressing effect, and an effect of promoting bubble breaking are better.

[0031] In other embodiments, as in Fig. 8, the curved surface 22 is constructed as a plurality of connected surfaces, each surface including two partial surfaces having an angle, ie, similar to a curved surface conforming to a triangular wave; as in Fig. 9, the curved surface 22 is constructed as a plurality of connected arc surfaces; as shown in Fig. 10, the curved surface 22 is constructed as a plurality of curved surfaces, each surface corresponding to a polygon; and in the above curved surface 22, along the circumferential direction of the discharge tube 20, a circumferential angle corresponding to at least one concave part 221 is larger than a circumferential angle corresponding to a convex part 222 adjacent to a corresponding concave part 221, and a circumferential angle corresponding to at least one other concave part 221 is smaller than a circumferential angle corresponding to a convex part 222 adjacent to a corresponding concave part 221.That is, as long as the curved surface 22 corresponds to an uneven surface, it is not easy to generate bubbles, and the concave parts 221 and the convex parts 222 are distributed along the circumferential direction of the discharge tube 20, which not only suppresses the generation of bubbles, but also makes the bubbles break relatively easily when large bubbles are generated, thereby avoiding the bubble hanging phenomenon at the discharge opening 21.

[0032] In another embodiment of the present invention, referring to Fig. 11 to Fig.13, a beverage outlet structure 200 comprises a dispensing tube 20a and a guide member 30 arranged in the dispensing tube 20a. The dispensing tube 20a is provided with an input end and a discharge end. The input end of the dispensing tube 20a is connected to a beverage machine. A discharge opening 21a is formed at the discharge end of the dispensing tube 20a, and the guide member 30 extends along an axial direction of the dispensing tube 20a. At the discharge opening 21a, the dispensing tube 20a has a plurality of concave parts 221a and a plurality of convex parts 222a arranged along a circumferential direction of the dispensing tube 20a. The plurality of concave parts 221a and the plurality of convex parts 222a form a curved surface 22a on an end surface of the dispensing opening 21a.a concave part in the plurality of concave parts 221a and a convex part in the plurality of convex parts 222a are arranged alternately with each other along the circumferential direction of the discharge tube 20a, the guide member 30 includes a plurality of blades 31, a number of the plurality of blades 31 is the same as a number of the plurality of convex parts 222a or a number of the plurality of concave parts 221a, each of the plurality of blades 31 protrudes from the discharge opening 21a along the axial direction of the discharge tube 20a, and along the circumferential direction of the discharge tube 20a, an angle between each of at least one pair of adjacent blades 31 is different from an angle between another pair of adjacent blades 31, that is, the plurality of blades 31 are unevenly distributed along the circumferential direction of the discharge tube 20a. A position in which the blade 31 lies may correspond to a position in which the concave part 221a lies,or a position where the convex part 222a is located, when the position where the blade 31 is located corresponds to the position where the convex part 222a is located, uneven distribution can avoid bubble hanging from different directions, and at a region formed by a small gap between the concave part 221a and the blade 31 or between the convex part 222a and the blade 31, generation of the bubbles is suppressed; and at a region formed by a large gap between the concave part 221a and the blade 31 or between the convex part 222a and the blade 31, relatively large bubbles are formed, whereby bubbles break relatively easily. When the position in which the blade 31 is located corresponds to the position in which the concave part 221a is located, air flowing out with coffee liquid can overflow from a gap between the convex part 222a and the blade 31,before reaching the concave part 221a, thereby avoiding the generation of bubbles, so that the arrangement of the blade 31 can achieve a relatively smooth liquid guide for the coffee liquid.

[0033] In this embodiment, when the position in which the blade 31 is located corresponds to the position in which the concave part 221a is located, the plurality of blades 31 are unevenly distributed along the circumferential direction of the discharge tube 20a, whereby the bubble hanging from different directions can also be avoided.

[0034] Specifically, in the same manner as the above embodiments, the curved surface 22 is constructed as a surface conforming to a sine wave. The position where a highest point of the convex part 222a is located corresponds to a wave crest, the position where a lowest point of the concave part 221a is located corresponds to a wave trough, and the position where each of the plurality of blades 31 is located corresponds to each wave crest. The curved surface of the sine wave is relatively regular, so a ventilation position is relatively smooth and uniform along a course of the curved surface 22a, and the appearance and configuration of the end surface of the discharge opening 21a are standard.

[0035] Of course, the curved surface 22a may also be constructed as one of three types of a plurality of connected surfaces, each surface comprising two partial surfaces having an angle, a plurality of connected arc surfaces, and a plurality of connected surfaces, each surface corresponding to a polygon; along the circumferential direction of the discharge tube 20a, a circumferential angle corresponding to at least one concave part 221a is larger than a circumferential angle corresponding to a convex part 222a adjacent to a corresponding concave part 221a, and a circumferential angle corresponding to at least one other concave part 221a is smaller than a circumferential angle corresponding to a convex part 222a adjacent to a corresponding concave part 221a.Similarly, as long as the curved surface 22a corresponds to an uneven surface, it may not be easy to generate bubbles, and the concave parts 221a and the convex parts 222a are arranged along the circumferential direction of the discharge tube 20a, which not only suppresses the generation of bubbles, but also makes the bubbles break relatively easily when large bubbles are generated, thereby avoiding the bubble hanging phenomenon at the discharge opening 21a.

[0036] In this embodiment, the position in which each blade is located corresponds to a position in which a lowest point of the concave part 221a is located or a position in which a highest point of the convex part 222a is located, and along the axial direction of the dispensing tube 20a, a height difference between the concave part 221a and the convex part 222a that are adjacent to each other is greater than 1 mm, a distance by which each of the plurality of blades 31 protrudes from the dispensing opening 21a is greater than 4 mm, and the distance by which each of the plurality of blades 31 protrudes from the dispensing opening 21a corresponds to three to six times the height difference between the concave part 221a and the convex part 222a that are adjacent to each other, thereby not only ensuring appropriate liquid guidance to achieve appropriate buffering and allowing the coffee liquid to flow relatively smoothly flows out, but also ensuresthat bubbles in a corresponding volume range break relatively easily when coffee liquid flows out and forms the bubbles.

[0037] Furthermore, the plurality of blades 31 includes 2-5 blades, and under the premise of a certain size of the discharge opening 21a, water discharge is not smooth due to the excessive number of blades 31. An angle between each of at least one pair of adjacent blades 31 is greater than or equal to 120 degrees, making it relatively easy to guide liquid.In this embodiment, specifically, four blades 31 are adopted, every two blades 31 opposite to each other of the four blades 31 are arranged in a straight line, two groups of the two blades 31 in a straight line are crossed, but the two groups of the two blades 31 in a straight line are not arranged vertically, specifically, an angle between the two groups of the two blades 31 in a straight line is an obtuse angle of 120 degrees, and based on a liquid guiding role of the blade 31, at a gap between the blade 31 and an inner wall surface of the discharge opening 21a, a liquid guiding effect, a bubble suppressing effect, and an effect of promoting bubble breaking are better.

[0038] In the above embodiments, along the axial direction of the dispensing tube 20a, a height H3 of each of the plurality of blades 31 located in the dispensing tube 20 is greater than the height H1 by which the blade 31 protrudes from the dispensing opening 21. Specifically, the height H3 of each of the plurality of blades 31 located in the dispensing tube 20 is 1.5 to 4 times the height H1, thereby achieving relatively good flow control for the coffee liquid. The beverage outlet structure 100 may include two dispensing tubes 20, and the structures of the two dispensing tubes 20 may be the same or different, allowing the coffee liquid to be dispensed into two cups simultaneously. Of course, based on different beverages brewed by a beverage machine, multiple dispensing tubes 20 may be configured to dispense different beverages.

[0039] The present application also relates to a beverage machine including a main body, and the beverage outlet structure 100 in the above embodiments is provided on the main body. For example, a front part of the main body is provided with the beverage outlet structure 100 in the above embodiments. The beverage machine may be an apparatus for brewing beverages, such as a tea beverage machine, a coffee machine, or a milk tea machine.

[0040] In the beverage outlet structure and beverage machine of the present application, a relative position between the blade and two adjacent concave parts is adjusted so that coffee liquid with greasy characteristics does not easily form bubbles at a coffee outlet or bubbles can quickly break after they are formed, while not affecting a flow direction of the coffee liquid and preventing the bubble hanging phenomenon. An unevenly curved surface is formed on the end surface of the discharge opening, and the blades are unevenly distributed along the circumferential direction of the discharge tube, which can also prevent bubble hanging from different directions.The relative position between the blade and the concave part is designed or the distribution of the blades and the uneven curved surface on the end surface of the dispensing tube are adjusted so as to avoid the bubble hanging at the dispensing port or prevent the generation of large bubbles, thereby preventing beverage liquid from deviating from a discharge direction due to flow of the beverage liquid along the large bubbles, and further making discharge of the beverage liquid relatively reliable.

[0041] It should be understood that although the patent specification has been described according to the embodiments, not each embodiment includes only an independent technical solution, the patent specification presented in this way serves only for the purpose of clarification, a person skilled in the art should consider the patent specification as a whole, and the technical solutions in different embodiments can also be combined accordingly to form other embodiments that can be understood by a person skilled in the art.

[0042] The series of detailed explanations listed above merely includes specific explanations of the feasibility of the embodiments of the present application and is not intended to limit the scope of the present application, and an equivalent embodiment or modification without departing from the spirit of the present application is intended to fall within the scope of the present application.

Claims

[1] A beverage outlet structure including a dispensing tube and a guide member disposed in the dispensing tube, the dispensing tube being provided with an input end and a discharge end, a discharge opening being formed at the discharge end, and the guide member extending along an axial direction of the dispensing tube and protruding from the discharge opening, characterized bythat, at the discharge opening, the discharge tube has a plurality of concave parts and a plurality of convex parts arranged along a circumferential direction of the discharge tube, the plurality of concave parts and the plurality of convex parts forming a curved surface on an end surface of the discharge opening, a concave part in the plurality of concave parts and a convex part in the plurality of convex parts being arranged alternately with each other along the circumferential direction of the discharge tube; the guide member includes a plurality of blades, and a number of the plurality of blades is the same as a number of the plurality of convex parts; a part of each of the plurality of blades lies inside the discharge tube along the axial direction of the discharge tube, and another part of the blade protrudes from the discharge opening along the axial direction of the discharge tube;and along the circumferential direction of the discharge tube, the blade is provided between two adjacent concave parts and the concave part is provided between two adjacent blades.; [2] The beverage outlet structure according to claim 1, wherein, along the axial direction of the dispensing tube, a distance by which the blade protrudes from the dispensing opening is three to six times a height difference between a concave part and a convex part adjacent to each other, the height difference between the concave part and the convex part adjacent to each other being greater than 1 mm and the distance by which the blade protrudes from the dispensing opening being greater than 4 mm. [3] The beverage outlet structure according to claim 1, wherein the plurality of concave parts and the plurality of convex parts are unevenly distributed along the circumferential direction of the dispensing tube, the plurality of concave parts are symmetrically arranged along the axial direction of the dispensing tube, and the plurality of convex parts are symmetrically arranged along the axial direction of the dispensing tube. [4] The beverage outlet structure according to claim 1, wherein a position where the blade is located corresponds to a position where a highest point of the convex part is located, the curved surface is constructed as a surface that conforms to a sine wave, a position where the highest point of the convex part is located corresponds to a wave crest, a position where a lowest point of the concave part is located corresponds to a wave trough, and the position where the blade is located corresponds to the wave crest. [5] The beverage outlet structure according to claim 4, wherein an amplitude of the sine wave corresponding to a plurality of wave crests on the curved surface is equal to an amplitude of the sine wave corresponding to a plurality of wave troughs on the curved surface; along the circumferential direction of the dispensing tube, circumferential angles corresponding to two adjacent wave troughs are different, a circumferential angle corresponding to at least one wave trough is larger than a circumferential angle corresponding to a wave crest adjacent to a corresponding wave trough, and a circumferential angle corresponding to at least one other wave trough is smaller than a circumferential angle corresponding to a wave crest adjacent to a corresponding wave trough. [6] The beverage outlet structure according to claim 1, wherein the plurality of blades includes 2-5 blades and an angle between each of at least a pair of adjacent blades is greater than or equal to 120 degrees. [7] The beverage outlet structure according to claim 1, wherein the curved surface is constructed as one of three types of a plurality of connected surfaces, each surface including two partial surfaces having an angle, a plurality of connected arc surfaces, and a plurality of connected surfaces, each surface conforming to a polygon; along the circumferential direction of the dispensing tube, a circumferential angle corresponding to at least one concave part is larger than a circumferential angle corresponding to a convex part adjacent to a corresponding concave part, and a circumferential angle corresponding to at least one other concave part is smaller than a circumferential angle corresponding to a convex part adjacent to a corresponding concave part. [8] A beverage outlet structure including a dispensing tube and a guide member disposed in the dispensing tube, the dispensing tube being provided with an input end and a discharge end, a discharge opening being formed at the discharge end, and the guide member extending along an axial direction of the dispensing tube, characterized bythat, at the discharge opening, the discharge tube has a plurality of concave parts and a plurality of convex parts arranged along a circumferential direction of the discharge tube, wherein the plurality of concave parts and the plurality of convex parts form a curved surface on an end surface of the discharge opening, a concave part in the plurality of concave parts and a convex part in the plurality of convex parts are arranged alternately with each other along the circumferential direction of the discharge tube, the guide member includes a plurality of blades, a number of the plurality of blades is the same as a number of the plurality of concave parts or a number of the plurality of convex parts,each of the plurality of blades protrudes from the dispensing opening along the axial direction of the dispensing tube, and along the circumferential direction of the dispensing tube, an angle between each of at least one pair of adjacent blades differs from an angle between another pair of adjacent blades. [9] The beverage outlet structure according to claim 8, wherein a position where the blade is located corresponds to a position where a lowest point of the concave part is located or a position where the highest point of the convex part is located, and along the axial direction of the dispensing tube, a height difference between a concave part and a convex part adjacent to each other is greater than 1 mm and a distance by which the blade protrudes from the dispensing opening is greater than 4 mm. [10] A beverage machine including a main body, characterized bythat the beverage outlet structure according to one of claims 1 to 9 is provided on the main body.

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