Multi-pipeline liquid outlet device and beverage machine

Abstract

The utility model discloses a multi-pipeline liquid outlet device and beverage machine relates to catering equipment technical field, including integrated non-return subassembly and fixed seat, the integrated non-return subassembly has a plurality of non-return surface, non-return surface and blanking pipe one-to-one correspondence, non-return surface is made of elastic material and has blanking notch for blanking, and the fixed seat is fixed on the fixed seat. The fixing base is used for installing the integrated non-return assembly to a discharging pipe assembly. During blanking, materials enter the non-return faces of the integrated non-return assembly in a one-to-one correspondence mode through the blanking pipes, pressure is applied to the non-return faces to enable the non-return faces to deform, a blanking notch is opened, the materials can normally pass through the integrated non-return assembly, and when blanking is stopped, the materials can normally pass through the integrated non-return assembly without the action of material pressure. The non-return surface automatically resets by utilizing the elasticity of the non-return surface, so that the blanking notch is automatically closed, and as the non-return surface deforms and a certain acting force is needed for opening the blanking notch, the non-return surface can effectively support a certain amount of wall-mounted liquid drops, and the occurrence of material dripping is greatly reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of catering equipment, and more specifically to a multi-pipeline liquid outlet device and a beverage machine. Background Art

[0002] With the rapid expansion of the beverage market, consumer demand for beverage machines continues to grow. Beverage machines can quickly and efficiently dispense a variety of liquid beverages including tea, juice, milk, syrup and coffee. In order to adapt to the trend of increasing variety of liquid beverages, the beverage industry has begun to widely adopt ready-made beverage dispensing machines.

[0003] In these ready-made beverage dispensing machines, various liquid beverages are pumped to the same dispensing base through their respective pumps and flow into the finished cup or shaker. The dripping problem at the dispensing port will have an adverse effect on the quality of the beverage. After dispensing, the existing ready-made beverage dispensing machines will pump the beverage back into the original container by reversing the pump, and the dispensing port pipeline is designed to be an inverted "U" shape to reduce dripping. However, the liquid remaining on the pipe wall of the dispensing port pipeline may flow along the pipeline to the dispensing port due to gravity, and drip when the surface tension of the droplets is not enough to resist gravity, affecting the quality of the beverage.

[0004] Therefore, how to solve the problem of liquid dripping to improve the performance of the beverage machine and maintain the quality of the beverage has become a technical problem that needs to be solved urgently by those skilled in the art. Utility Model Content

[0005] In view of this, an object of the present invention is to provide a multi-pipeline liquid outlet device to solve the problem of liquid dripping, thereby improving the performance of the beverage machine and maintaining the quality of the beverage.

[0006] Another object of the present invention is to provide a beverage machine including the multi-pipeline liquid outlet device.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A multi-pipeline liquid outlet device is used to be arranged at a discharge end of a discharge pipe assembly, wherein the discharge pipe assembly has a plurality of mutually independent discharge pipes, and is characterized in that it comprises:

[0009] An integrated non-return assembly, having a plurality of non-return surfaces, each of which corresponds to a material discharge channel of the material discharge pipe, and each of which is made of an elastic material and has a material discharge cutout for discharge;

[0010] A fixing seat is connected to the integrated check assembly and is used to fix the integrated check assembly to the discharge end of the discharge pipe assembly.

[0011] Optionally, in the above-mentioned multi-pipe liquid discharge device, the non-return surface is an anti-drip non-return surface, and the anti-drip non-return surface protrudes in the opposite direction of the material discharge direction. When the material discharge pipe discharges material, the anti-drip non-return surface deforms in the material discharge direction and opens the material discharge incision. When the material discharge pipe stops discharging material, the anti-drip non-return surface returns to its initial state.

[0012] It also includes a feeding drive, wherein the integrated check assembly is sealed and connected to the feeding end of the feeding pipe assembly, and the feeding drive is used to drive the feeding medium to be discharged from the feeding pipe, and to make the internal space of the feeding pipe have negative pressure when the feeding is stopped.

[0013] Optionally, in the above-mentioned multi-pipeline liquid outlet device, an outer ring of at least one of the check surfaces is provided with an annular recess, the annular recess is provided on the integrated check assembly and communicates with the feed channel;

[0014] When the feeding pipe discharges materials, the annular recess discharges materials from the feeding cutout, and when the feeding pipe stops discharging materials, the anti-drip and non-return surface guides the feeding medium into the annular recess.

[0015] Optionally, in the above-mentioned multi-pipe liquid outlet device, the inner wall of the annular recess serves as a connecting wall connected to the anti-drip and non-return surface, and the thickness of the connecting wall is positively correlated with the degree of wall hanging of the discharge medium.

[0016] Optionally, in the above-mentioned multi-pipe liquid outlet device, the check surface has a preset thickness, the preset thickness of at least two of the check surfaces is different, and the thickness of the check surface is positively correlated with the degree of wall hanging of the feed medium.

[0017] Optionally, in the above-mentioned multi-pipe liquid outlet device, a guide portion is provided on one of the feed pipe assembly and the integrated non-return assembly, and a limiting portion for cooperating with the guide portion is provided on the other.

[0018] Optionally, in the above-mentioned multi-pipe liquid outlet device, the guide portion is a plurality of guide columns arranged at circumferential intervals around the integrated non-return assembly, and the limiting portion is a limiting hole corresponding one-to-one to the guide columns and for the guide columns to be embedded.

[0019] Optionally, in the above-mentioned multi-pipeline liquid outlet device, the integrated anti-return assembly includes:

[0020] An integrated check valve, made of elastic material, having the check surface and provided with an avoidance hole;

[0021] The insert is connected to the integrated check valve, the guide portion is arranged on the insert, and passes through the avoidance hole to cooperate with the limiting portion, and the fixing seat is used to install the integrated check valve and the insert to the discharge end of the discharge pipe assembly.

[0022] Optionally, in the above-mentioned multi-pipe liquid outlet device, the insert is a rubber-coated insert.

[0023] Optionally, in the above-mentioned multi-pipeline liquid outlet device, a positioning installation hole is provided on the integrated check valve, and a positioning installation protrusion for embedding in the positioning installation hole is provided on the insert.

[0024] Optionally, in the above-mentioned multi-pipeline liquid outlet device, the integrated check valve is provided with a plurality of guide cone holes for the discharge ends of the discharge pipe to be embedded in a one-to-one correspondence, and the check surface is arranged in the guide cone holes.

[0025] A beverage machine comprises the above-mentioned multi-pipeline liquid outlet device.

[0026] The multi-pipeline liquid outlet device provided by the utility model is used to be arranged at the discharge end of a discharge pipe assembly. The discharge pipe assembly has a plurality of independent discharge pipes. The leakage prevention device includes an integrated check assembly and a fixed seat. The integrated check assembly has a plurality of check surfaces. The check surfaces correspond one to one with the discharge channels of the discharge pipes. The check surfaces are made of elastic material and have a discharge cutout for discharge. The fixed seat is connected to the integrated check assembly for installing the integrated check assembly to the discharge end of the discharge pipe assembly. When unloading, the unloading medium enters each check surface of the integrated check assembly through each unloading pipe one by one. By applying pressure to the check surface, the check surface can be deformed, the unloading incision is opened, and the unloading medium can pass through the integrated check assembly normally. When unloading is stopped, in the absence of unloading medium pressure, the check surface can automatically reset by utilizing its own elastic properties, so that the unloading incision is automatically closed. Since a certain force is required to deform the check surface and open the unloading incision, it can effectively support a certain amount of wall droplets, thereby greatly reducing the occurrence of dripping of the unloading medium.

[0027] Compared with the prior art, the multi-pipeline liquid outlet device provided by the utility model has a simple structure and low cost. By adding a check surface made of elastic material at the discharge end of the discharge pipe, the problem of dripping can be effectively avoided, the performance of the beverage machine can be improved, and the quality and taste of the beverage can be guaranteed.

[0028] The beverage machine disclosed in the present invention includes the above-mentioned multi-pipeline liquid outlet device. Due to the multi-pipeline liquid outlet device, the beverage machine also has the above-mentioned beneficial effects. Other structures refer to the prior art and are not described here in detail. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0030] Figure 1 It is a front view of the multi-pipeline liquid outlet device disclosed in the embodiment of the utility model;

[0031] Figure 2 A top view of a multi-pipeline liquid outlet device disclosed in an embodiment of the utility model;

[0032] Figure 3 for Figure 2 Section at AA Figure 1 ;

[0033] Figure 4 for Figure 2 Section at AA Figure 2 ;

[0034] Figure 5 Axonometric view of the multi-pipeline liquid outlet device disclosed in the embodiment of the utility model Figure 1 ;

[0035] Figure 6 Axonometric view of the multi-pipeline liquid outlet device disclosed in the embodiment of the utility model Figure 2 ;

[0036] Figure 7 An exploded view of a multi-pipeline liquid outlet device disclosed in an embodiment of the utility model;

[0037] Figure 8 This is an axonometric view of a beverage machine disclosed in an embodiment of the utility model.

[0038] Wherein, 100 is a multi-pipeline liquid outlet device, 110 is an integrated check valve, 111 is a check surface, 112 is an annular recess, 120 is an insert, 121 is a guide portion, and 130 is a fixed seat;

[0039] 200 is a feed pipe assembly, 210 is a feed pipe, and 220 is a feed base;

[0040] 300 is a sink, 310 is an operating table, 320 is a display screen, 330 is a perspective window, 340 is an empty cup tray, 350 is a liquid outlet, 360 is an ice trough, and 370 is a load-bearing module. DETAILED DESCRIPTION

[0041] The core of the utility model is to disclose a multi-pipe liquid outlet device 100 to solve the problem of liquid dripping, thereby improving the performance of the beverage machine and maintaining the quality of the beverage.

[0042] Another core of the present invention is to disclose a beverage machine including the multi-pipeline liquid outlet device 100 .

[0043] The following is an explanation of the embodiments with reference to the accompanying drawings. In addition, the embodiments shown below do not limit the contents of the utility model described in the claims. In addition, the entire contents of the structures represented by the following embodiments are not limited to those necessary as solutions of the utility model described in the claims. It should be noted that, for ease of description, only the parts related to the utility model are shown in the accompanying drawings. In the absence of conflict, the embodiments in the utility model and the features in the embodiments can be combined with each other.

[0044] Combination Figure 1-Figure 7 The multi-pipe liquid outlet device 100 disclosed in the embodiment of the utility model is used to be arranged at the discharge end of the discharge pipe assembly 200. The discharge pipe assembly 200 has a plurality of independent discharge pipes 210. The leakage prevention device includes an integrated check assembly and a fixed seat 130. The integrated check assembly has a plurality of check surfaces 111. The check surfaces 111 correspond one by one to the discharge channels of the discharge pipe 210. The check surfaces 111 are made of elastic material and have a discharge cutout for discharge. The fixed seat 130 is connected to the integrated check assembly for installing the integrated check assembly to the discharge end of the discharge pipe assembly 200.

[0045] When unloading, the unloading medium (liquid material) enters each check surface 111 of the integrated check assembly through each unloading pipe 210 one by one. By applying pressure to the check surface 111, the check surface 111 can be deformed, and the unloading incision is opened, and the unloading medium can pass through the integrated check assembly normally. When unloading is stopped, in the absence of the unloading medium pressure, the check surface 111 can automatically reset by utilizing its own elastic properties, so that the unloading incision is automatically closed. Since a certain force is required to deform the check surface 111 and open the unloading incision, it can effectively support a certain amount of wall droplets, thereby greatly reducing the occurrence of dripping of the unloading medium.

[0046] Compared with the prior art, the multi-pipe liquid outlet device 100 disclosed in the utility model has a simple structure and low cost. By adding a check surface 111 made of elastic material at the discharge end of the discharge pipe 210, the problem of dripping can be effectively avoided, the performance of the beverage machine can be improved, and the quality and taste of the beverage can be guaranteed.

[0047] It is understandable that the connection between the multi-channel liquid outlet device 100 and the feed pipe assembly 200 is sealed to avoid leakage at the connection between the two. The feed cutout on the check surface 111 can be in a straight line, a cross or other shapes.

[0048] Preferably, the non-drip non-return surface 111 is a drip-proof non-return surface, which protrudes in the direction of the feeding tube 210, that is, in the opposite direction of the feeding tube. When the feeding tube 210 feeds, the non-drip non-return surface deforms in the feeding direction and opens the feeding cutout; when the feeding tube 210 stops feeding, the non-drip non-return surface returns to its initial state. Compared with the solution that the non-drip non-return surface 111 is a planar structure or the non-drip non-return surface 111 protrudes in the direction away from the feeding tube 210, the former requires a greater force to deform under force and open the feeding cutout, which can effectively receive more wall-hanging liquid and reduce the occurrence of dripping.

[0049] Furthermore, the multi-channel liquid discharge device 100 also includes a feed driver, which can be a peristaltic pump, so as to be able to drive the feed medium to be discharged from the feed pipe 210 in a forward rotation, and when the feed is stopped, the driving pump can be reversed to make the internal space of the feed pipe 210 have a negative pressure, forming a negative pressure space, that is, to make the two sides of the check surface 111 have a pressure difference, so that the feed cutout on the check surface 111 is more difficult to open. The sealed connection between the integrated check assembly and the feed end of the feed pipe assembly 200 can effectively ensure the formation of the negative pressure space.

[0050] When the beverage machine changes from a discharging state to a stopped discharging state, the discharging drive reverses and sucks back the discharging medium to form a negative pressure space in the discharging pipe 210 and then stops. In the absence of pressure applied by the discharging medium, the check surface 111 can automatically reset, so that the discharging cutout is automatically closed. Since the check surface 111 protrudes in the direction of the discharging pipe 210 and the discharging pipe 210 is in a negative pressure environment, the check surface 111 can effectively support a certain amount of wall droplets, thereby greatly reducing the occurrence of wall droplets dripping.

[0051] The integrated check assembly includes a plurality of annular mounting parts corresponding to the check surfaces 111 one by one. The annular mounting part is used to connect with the feed pipe 210. The check surface 111 is arranged on the inner ring of the annular mounting part. When the check surface 111 is deformed to open the feed cutout, the feed cutout is located outside the annular mounting part, that is, the check surface 111 is convexly deformed toward the side close to the feed pipe 210 in the natural state. When the liquid is discharged, the check surface 111 is deformed toward the side away from the feed pipe 210 by the pressure of the liquid, and the actual liquid discharge position is located outside the annular mounting part ( Figure 3 and Figure 4 The red dotted line portion in the middle) can effectively prevent residual liquid from remaining on the inner wall of the annular mounting portion when the liquid is stopped, causing liquid dripping and contamination.

[0052] In one embodiment, in combination Figure 4 The annular mounting portion has an annular recess 112 with an opening toward the feeding tube 210. The inner sidewall of the annular recess 112 is connected to the check surface 111. When the check surface 111 is deformed to open the feeding cutout, the feeding cutout is located outside the inner sidewall of the annular recess 112. The annular recess 112 has an annular liquid storage tank that can store a certain amount of feeding medium, and can collect the wall-hanging liquid. Specifically, when the feeding tube 210 stops feeding, the anti-drip check surface can guide the wall-hanging liquid droplets into the annular recess 112 for temporary storage. In order to avoid the long-term accumulation of the feeding medium in the annular recess 112, when the feeding tube 210 is feeding, the feeding medium in the annular recess 112 can also be discharged from the feeding cutout in the downward direction.

[0053] Specifically, combined Figure 4 The inner side wall of the annular recess 112 is connected to the anti-drip check surface as a connecting wall. When the material is discharged from the discharge pipe 210, the connecting wall conforms to the deformation of the check surface 111 and deforms in the discharge direction synchronously, thereby destroying the annular liquid storage tank of the annular recess 112, and realizing the discharge of the material in the annular liquid storage tank. At the same time, the deformation of the connecting wall can also ensure that the material discharge cutout is located outside the annular mounting portion when discharging, avoiding residual liquid from being retained on the inner wall of the annular mounting portion.

[0054] The check surface 111 is defined to have a preset thickness, and the preset thicknesses of at least two check surfaces 111 are different to correspond to different feed media. It can be understood that for liquids that are easy to hang on the wall and drip, the thickness of the check surface 111 should be thicker so as to effectively receive more hanging liquid and reduce the occurrence of dripping, that is, the thickness of the check surface 111 is positively correlated with the degree of hanging on the wall of the feed medium. Similarly, the thickness of the connecting wall is also positively correlated with the degree of hanging on the wall of the feed medium.

[0055] In one embodiment, the thickness of the check surface 111 is between 0.15 mm and 0.35 mm, and the thickness of the rest of the integrated check assembly (integrated check valve 110) is between 0.35 mm and 0.5 mm, and the specific parameter settings are adjusted according to the output volume.

[0056] The above-mentioned integrated check assembly can be made of elastic silicone material as a whole, that is, the annular mounting portion and the check surface 111 can be integrally formed by elastic material, and the integrated check assembly can be pressed onto the feed pipe assembly 200 through the fixing seat 130, so as to form a seal by utilizing the elastic properties of silicone, thereby avoiding mixing of liquids between different feed pipes 210 and leakage at the connection between the multi-pipeline liquid outlet device 100 and the feed pipe assembly 200.

[0057] Among them, the fixing seat 130 and the discharge pipe assembly 200 can be connected by means of a threaded structure, a screw-on structure, etc., and a corresponding anti-slip pattern can be set on the outer wall of the fixing seat 130 to facilitate the screwing and installation of the fixing seat 130.

[0058] Combination Figure 3 and Figure 6 The fixing seat 130 is annular in structure as a whole, and a connecting structure (not shown in the figure) which can be connected to the blanking base 220 is arranged on the inner wall of the first end of the fixing seat 130. In order to ensure the reliability of the installation position of the integrated non-return assembly, an annular retaining ring structure which can abut against the end face edge position of the integrated non-return assembly is arranged on the inner wall of the second end of the fixing seat 130. During assembly, the annular retaining ring structure keeps in contact with the integrated non-return assembly, which can prevent the integrated non-return assembly from tilting or wrinkling, and at the same time prevent the integrated non-return assembly from falling off and deforming (except for the non-return surface 111) when the liquid flows out.

[0059] In order to facilitate the installation and positioning of the feed tube assembly 200 and the integrated non-return assembly, a guide portion 121 is provided on one of the two, and a limiting portion for cooperating with the guide portion is provided on the other to facilitate the positioning and installation of the feed tube assembly 200 and the integrated non-return assembly.

[0060] Specifically, combined Figure 7 The guide portion 121 can be a plurality of guide posts arranged at circumferential intervals around the integrated non-return assembly, and the limiting portion is a limiting hole corresponding to the guide posts one by one and for the guide posts to be embedded in, so as to achieve positioning and guiding of the two.

[0061] Furthermore, one end of the guide portion 121 used for embedding in the limiting hole can be configured as a tapered guide structure with a gradually reduced size, so as to facilitate embedding and installation in the limiting hole.

[0062] The guide column mentioned above can also be replaced by a guide block, a guide protrusion, etc., and the shape of the limiting hole corresponds to it.

[0063] Combination Figure 5 The feed tube assembly 200 includes a feed tube base 220 and a plurality of feed tubes 210. The feed tubes 210 are all disposed on the feed tube base 220. The feed tube base 220 and the feed tube 210 can be an integral structure or a split structure, preferably an integral structure, which is convenient for preparation by integral molding.

[0064] In a specific embodiment disclosed in the present utility model, the integrated check valve assembly includes an integrated check valve 110 and an insert 120. The integrated check valve 110 is made of elastic material and has multiple check surfaces 111. At the same time, an avoidance hole is opened. The insert 120 is connected to the integrated check valve 110. The guide portion 121 is arranged on the insert 120 and passes through the avoidance hole to cooperate with the limiting portion. The fixed seat 130 presses and fixes the integrated check valve 110 and the insert 120 on the blanking base 220.

[0065] The insert 120 mentioned above may be a rubber-coated insert to prevent the problem of fluid mixing between pipelines.

[0066] In order to realize the positioning and installation of the integrated check valve 110 and the insert 120, a positioning and installation hole is provided on the integrated check valve 110, and a positioning and installation protrusion for embedding in the positioning and installation hole is provided on the insert 120. Figure 3 The cross-section of the positioning mounting protrusion can be T-shaped.

[0067] In order to facilitate the corresponding installation of each discharge pipe 210 and the check surface 111, a plurality of guide cone holes for the discharge ends of the discharge pipes 210 to be embedded one by one are provided on the integrated check valve 110, and the check surfaces 111 are arranged one by one in each guide cone hole. The discharge ends of each discharge pipe 210 can be embedded one by one in the guide cone hole through the guidance of the guide cone hole and correspond to each check surface 111. The discharge ends of the discharge pipes 210 can also be arranged to be a tapered conical structure, which is convenient for positioning and installation with the guide cone hole.

[0068] Combination Figure 3 The guide cone hole and the annular mounting portion may be an integrated structure, or the guide cone hole and the annular mounting portion may be a split structure, and the two are connected.

[0069] In a specific implementation process, the liquid beverage in the liquid holding container is sequentially transported to the finished cup or shaker through the liquid suction pipeline, the pump tube, the discharge pipe 210 and the check surface 111. At this time, the check surface 111 opens the discharge incision through the pressure of the pump (liquid beverage). When the discharge amount reaches the set value, the discharge driver reverses to draw the liquid beverage in each pipeline back into the liquid holding container. At the moment when the discharge driver stops and reverses, the check surface 111 automatically resets and closes the discharge incision by its own elasticity. At the same time, the reversal of the discharge driver forms a negative pressure environment in the discharge pipe 210, so that the check surface 111 is closed more tightly. Even if the wall liquid remaining on the wall of the discharge pipe 210 gathers on the check surface 111 under the action of gravity, the force required to open the check surface 111 is much greater than the gravity of the residual liquid, and the liquid will not drip, thereby achieving an anti-drip effect, thereby improving the quality and taste of the beverage.

[0070] The beverage machine disclosed in the present invention includes the above-mentioned multi-channel liquid outlet device 100. Since it has the above-mentioned multi-channel liquid outlet device 100, it also has the above-mentioned beneficial effects, which will not be described in detail here. Figure 8 The multi-channel liquid outlet device 100 can be directly installed at the liquid outlet 350 (product outlet) of the beverage machine in a detachable manner, which is convenient for installation, maintenance and cleaning, reduces sanitary dead corners, and is easy to disassemble and assemble.

[0071] Combination Figure 8 The beverage machine disclosed in the embodiment of the utility model also includes components such as a water tank 300, an operating table 310, a display screen 320, a perspective window 330, an empty cup tray 340, an ice trough 360, a load-bearing module 370, etc. The specific structure and installation form of each component can refer to the existing technology and will not be repeated here.

[0072] The above description of the disclosed embodiments enables professionals in the field to implement or use the utility model. Various modifications to these embodiments will be obvious to professionals in the field, and the general principles defined in this article can be implemented in other embodiments without departing from the spirit or scope of the utility model. The specific technical means in some embodiments can be combined in part or in whole into another embodiment unless they are explicitly excluded by another embodiment. Therefore, the utility model will not be limited to the embodiments shown in this article, but will conform to the widest scope consistent with the principles and novel features disclosed in this article.

Claims

1. A multi-pipeline liquid outlet device, used to be arranged at a discharge end of a discharge pipe assembly (200), wherein the discharge pipe assembly (200) has a plurality of mutually independent discharge pipes (210), characterized in that: include: An integrated non-return assembly having a plurality of non-return surfaces (111), the non-return surfaces (111) corresponding one-to-one to the material discharge channels of the material discharge pipe (210), the non-return surfaces (111) being made of elastic material and having a material discharge notch for discharge; The fixing seat (130) is connected to the integrated non-return assembly and is used to fix the integrated non-return assembly to the discharge end of the discharge pipe assembly (200).

2. The multi-pipeline liquid outlet device according to claim 1, characterized in that: The anti-drip anti-return surface (111) is an anti-drip anti-return surface, which protrudes in the opposite direction of the material discharge direction. When the material discharge pipe (210) discharges material, the anti-drip anti-return surface deforms in the material discharge direction and opens the material discharge cutout. When the material discharge pipe (210) stops discharging material, the anti-drip anti-return surface returns to its initial state. It also includes a material discharge drive, wherein the integrated non-return assembly is sealedly connected to the discharge end of the material discharge pipe assembly (200), and the material discharge drive is used to drive the material discharge medium to be discharged from the material discharge pipe (210), and to make the internal space of the material discharge pipe (210) have negative pressure when the material discharge is stopped.

3. The multi-pipeline liquid outlet device according to claim 2, characterized in that: An outer ring of at least one of the non-return surfaces is provided with an annular recess (112), the annular recess (112) being provided on the integrated non-return component and being in communication with the material discharge channel; When the feeding pipe (210) discharges material, the annular recess (112) discharges material from the feeding cutout, and when the feeding pipe (210) stops discharging material, the anti-drip and non-return surface guides the feeding medium into the annular recess (112).

4. The multi-pipeline liquid outlet device according to claim 3, characterized in that: The inner wall of the annular recess (112) serves as a connecting wall connected to the anti-drip and non-return surface, and the thickness of the connecting wall is positively correlated with the degree of wall adhesion of the feed medium.

5. The multi-pipeline liquid outlet device according to claim 1, characterized in that: The non-return surface (111) has a preset thickness, the preset thickness of at least two of the non-return surfaces (111) is different, and the thickness of the non-return surface (111) is positively correlated with the degree of wall hanging of the feed medium.

6. The multi-pipeline liquid outlet device according to any one of claims 1 to 5, characterized in that: A guide portion (121) is provided on one of the feed pipe assembly (200) and the integrated anti-return assembly, and a limiting portion for cooperating with the guide portion is provided on the other.

7. The multi-pipeline liquid outlet device according to claim 6, characterized in that: The guide portion (121) is a plurality of guide posts arranged at intervals in the circumferential direction around the integrated anti-return component, and the limiting portion is a limiting hole corresponding to the guide posts one by one and for the guide posts to be embedded.

8. The multi-pipeline liquid outlet device according to claim 6, characterized in that: The integrated anti-return assembly comprises: An integrated check valve (110) is made of elastic material, has the check surface (111), and is provided with an avoidance hole; The insert (120) is connected to the integrated check valve (110), the guide portion (121) is arranged on the insert (120), and passes through the avoidance hole to cooperate with the limit portion, and the fixing seat (130) is used to install the integrated check valve (110) and the insert (120) to the discharge end of the discharge pipe assembly (200).

9. The multi-pipeline liquid outlet device according to claim 8, characterized in that: The insert (120) is a rubber-encapsulated insert.

10. The multi-pipeline liquid outlet device according to claim 8, characterized in that: The integrated check valve (110) is provided with a positioning installation hole, and the insert (120) is provided with a positioning installation protrusion for embedding in the positioning installation hole.

11. The multi-pipeline liquid outlet device according to claim 8, characterized in that: The integrated check valve (110) is provided with a plurality of guide tapered holes for the discharge ends of the discharge pipes (210) to be embedded in a one-to-one correspondence, and the check surface (111) is arranged in the guide tapered holes.

12. A beverage machine, characterized in that: It comprises a multi-pipeline liquid outlet device as described in any one of claims 1-11.

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