Coffee liquid outlet device
By introducing hot water and air into the coffee liquid outlet device, the negative pressure inside the coffee machine cavity is disrupted, solving the coffee liquid dripping problem and improving the coffee machine's working efficiency.
Patent Information
- Application Number
- CN202520713596.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-15
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-04-15
AI Technical Summary
In existing coffee machines, after the coffee liquid is prepared, the negative pressure in the closed cavity causes coffee to drip from the outlet, affecting work efficiency.
A hot water pipe and an air delivery pipe are installed in the coffee liquid outlet device. Hot water and air are introduced through the hot water inlet and coffee liquid inlet to break the negative pressure in the cavity and ensure that the coffee liquid flows out smoothly.
This effectively prevents coffee from dripping at the outlet, improving the coffee machine's efficiency.
Smart Images

Figure CN223860626U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of coffee machine technology, and in particular to a coffee liquid outlet device. Background Technology
[0002] With my country's reform and opening up, the world's most popular Italian espresso, cappuccino, and latte with milk have also appeared on Chinese tables and are increasingly loved by people, becoming one of the most popular drinks, bringing them pleasure and excitement.
[0003] With the rapid development of fully automatic coffee machines, their functions are becoming more and more powerful. In the current technology, the internal cavity of the coffee machine is closed. During the coffee making process, a certain negative pressure will be formed inside the closed cavity. However, after the coffee liquid is made, dripping coffee will occur at the coffee liquid outlet, which is not conducive to the flow of coffee liquid and reduces the overall working efficiency of the coffee machine. Utility Model Content
[0004] This utility model provides a coffee liquid outlet device that prevents coffee liquid from dripping at the outlet after the coffee liquid is prepared, facilitates the flow of coffee liquid, and improves the overall working efficiency of the coffee machine.
[0005] To achieve the aforementioned objectives, this application adopts the following technical solution:
[0006] A coffee liquid dispensing device, characterized in that it includes:
[0007] The outlet body has an internal cavity. A hot water pipe is installed inside the outlet body, which passes through the cavity and extends to the outlet body. The cavity is connected to at least one set of coffee liquid feeding pipes and one set of air supply pipes. The air supply pipes are connected to one side of the coffee liquid feeding pipes, and a side wall is provided between the air supply pipes and the coffee liquid feeding pipes to isolate them.
[0008] A cover is connected to the outlet body, and the cover is also provided with a hot water inlet and a coffee liquid inlet. The hot water inlet is connected to the hot water pipe through the top end of the hot water pipe, and the coffee liquid inlet is connected to the receiving cavity.
[0009] In some alternative embodiments, the top end of the hot water pipe is provided with an O-ring, and an O-ring is provided inside the O-ring.
[0010] In some alternative embodiments, the lower end of the hot water pipe is provided with a hot water outlet.
[0011] In some alternative embodiments, a set of coffee dispensing pipes includes two coffee dispensing pipes.
[0012] In some alternative embodiments, the coffee liquid discharge pipe includes a straight pipe body and a conical pipe body connected to the straight pipe body. The bottom end of the conical pipe body is provided with a coffee liquid outlet, and the center of the coffee liquid outlet is directly opposite the center of the cross-section of the conical pipe body.
[0013] In some alternative embodiments, an air inlet is also provided on the inclined surface of the conical tube.
[0014] In some alternative embodiments, the inclination angle α of the inclined surface of the tapered tube is 30° to 50°.
[0015] In some alternative implementations, a set of air delivery pipes includes two air delivery pipes.
[0016] In some alternative embodiments, the lower end of the air delivery pipe is connected to the air inlet, and the upper end of the pipe is provided with an air outlet, which is connected to the receiving cavity.
[0017] In some alternative embodiments, the sidewall of the cover is provided with a square sealing groove in the circumferential direction, and a square sealing ring is provided in the square sealing groove.
[0018] The coffee liquid outlet device provided in this application has the following beneficial effects:
[0019] In the technical solution adopted in this application, a receiving cavity is formed inside the outlet body, and a hot water pipe is also provided inside the outlet body. The hot water pipe passes through the receiving cavity and extends to the outlet body. The receiving cavity is connected to at least one set of coffee liquid feeding pipes and one set of air conveying pipes. The air conveying pipe is connected to one side of the coffee liquid feeding pipe, and a side wall is sandwiched between the air conveying pipe and the coffee liquid feeding pipe to isolate them. A hot water inlet and a coffee liquid inlet are also provided on the cover connected to the outlet body. The hot water inlet is connected to the hot water pipe through the top of the hot water pipe, and the coffee liquid inlet is connected to the receiving cavity. This avoids coffee dripping at the outlet after the coffee liquid is made and facilitates the flow of coffee liquid, thereby improving the overall working efficiency of the coffee machine. Attached Figure Description
[0020] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:
[0021] Figure 1 This is an exploded view of a coffee liquid outlet device according to this application;
[0022] Figure 2 yes Figure 1 Enlarged view of circle A shown;
[0023] Figure 3 yes Figure 1 Enlarged view of circle B shown;
[0024] Figure 4 This is a schematic diagram of the coffee liquid outlet and the conical tube body in a coffee liquid outlet device of this application;
[0025] Figure 5 This is a cross-sectional structural schematic diagram of a coffee liquid outlet device according to this application;
[0026] Figure 6 yes Figure 1 Enlarged view of circle C shown;
[0027] Figure 7 This is a cross-sectional structural schematic diagram of a coffee liquid outlet device according to this application from another perspective;
[0028] Figure 8 yes Figure 1 An enlarged view of circle D shown.
[0029] Figure label:
[0030] 10. Outlet body; 10A. Receiving cavity; 11. Hot water pipe; 111. O-ring seal groove; 112. O-ring seal; 12. Coffee liquid discharge pipe; 121. Straight pipe body; 122. Conical pipe body; 122A. Coffee liquid outlet; 122B. Air inlet; 13. Air delivery pipe; 13A. Air outlet;
[0031] 20. Cover; 21. Hot water inlet; 22. Coffee inlet; 23. Square sealing groove; 24. Square sealing ring. Detailed Implementation
[0032] The specific embodiments of this application are described below with reference to the accompanying drawings and examples. Through the content described in this specification, those skilled in the art can clearly and completely understand the technical solution, the technical problem solved, and the resulting technical effects of this application. It is understood that the specific embodiments described herein are only for explaining this application and not for limiting it. Furthermore, for ease of description, only the parts related to this application are shown in the accompanying drawings.
[0033] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings are only for the purpose of assisting those skilled in the art in understanding and reading the contents described in the specification, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportional relationships, or adjustments to the size should fall within the scope of the technical content disclosed in this application, provided that they do not affect the effects and purposes that this application can produce.
[0034] The use of terms such as "first," "second," and "the" does not imply quantity limitation and may indicate singular or plural. The terms "comprising," "including," "having," and any variations thereof used in this application are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or device that includes a series of steps or modules is not limited to the listed steps or units, but may also include steps or units not listed, or other steps or units inherent to such processes, methods, products, or devices. The terms "connected," "linked," and "coupled" used in this application are not limited to physical or mechanical connections, but may also include direct or indirect electrical connections.
[0035] It should also be noted that the longitudinal section corresponding to the embodiment of this application can be the section corresponding to the front view direction, the transverse section can be the section corresponding to the right view direction, and the horizontal section can be the section corresponding to the top view direction.
[0036] Furthermore, where there is no conflict, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.
[0037] refer to Figure 1 , Figure 1 This is an exploded schematic diagram of a coffee liquid outlet 122A device according to this application. Figure 1 As shown, a coffee liquid outlet device includes an outlet body 10 and a cover 20 connected to the outlet body 10.
[0038] Continue to refer to Figure 1 Please refer to them together. Figure 2 , Figure 2 yes Figure 1 An enlarged view of circle A shown. Figure 1 and Figure 2 As shown, the outlet body 10 has a hot water pipe 11 inside, with an O-ring seal groove 111 at the top and an O-ring seal ring 112 inside the O-ring seal groove 111. The lower end of the hot water pipe 11 has a hot water outlet. The outlet body 10 forms a receiving cavity 10A inside, through which the hot water pipe 11 passes and extends to the outside of the outlet body 10. The receiving cavity 10A is connected to at least one set of coffee liquid dispensing pipes 12 and one set of air conveying pipes 13.
[0039] refer to Figure 3 , Figure 4 and Figure 5 , Figure 3 yes Figure 1 The enlarged view of circle B shown. Figure 4 This is a schematic diagram of the coffee liquid outlet and the conical tube body in a coffee liquid outlet device according to this application. Figure 5This is a cross-sectional structural schematic diagram of a coffee liquid outlet device according to this application. Figure 3 , Figure 4 and Figure 5 As shown, a set of coffee liquid feeding pipes 12 includes two coffee liquid feeding pipes 12. Each coffee liquid feeding pipe 12 includes a straight pipe body 121 and a conical pipe body 122 connected to the straight pipe body 121. The bottom end of the conical pipe body 122 is provided with a coffee liquid outlet 122A. The center of the coffee liquid outlet 122A is directly opposite to the center of the cross-section of the conical pipe body 122. An air inlet 122B is also provided on the inclined surface of the conical pipe body 122. Furthermore, the inclination angle α of the inclined surface of the conical pipe body 122 is 30° to 50° to ensure that the finished coffee liquid can flow out in a uniform stream and meet the flow efficiency requirements when the coffee liquid flows out.
[0040] Continue to refer to Figure 1 and Figure 3 Please refer to them together. Figure 6 , Figure 6 yes Figure 1 An enlarged view of circle C shown. Figure 1 , Figure 3 and Figure 6 As shown, a set of air delivery pipes 13 includes two air delivery pipes 13. The lower end of the air delivery pipe 13 is connected to the air inlet 122B, and the upper end is provided with an air outlet 13A. The air outlet 13A is connected to the receiving cavity 10A. The air delivery pipe 13 is connected to one side of the coffee liquid feeding pipe 12. A side wall is sandwiched between the air delivery pipe 13 and the coffee liquid feeding pipe 12 to isolate them.
[0041] Continue to refer to Figure 1 Please refer to them together. Figure 7 and Figure 8 , Figure 7 This is a cross-sectional structural schematic diagram of a coffee liquid outlet device according to this application from another perspective. Figure 8 yes Figure 1 An enlarged view of circle D shown. (See diagram below.) Figure 1 , Figure 7 and Figure 8 As shown, the cover 20 is also provided with a hot water inlet 21 and a coffee liquid inlet 22. The hot water inlet 21 is connected to the hot water pipe 11 through the top end of the hot water pipe 11, and the coffee liquid inlet 22 is connected to the receiving cavity 10A. The side wall of the cover 20 is provided with a square sealing groove 23 circumferentially, and a square sealing ring 24 is provided in the square sealing groove 23.
[0042] Here, the interior of the outlet body 10 forms a receiving cavity 10A. The outlet body 10 also has a hot water pipe 11 inside, which passes through the receiving cavity 10A and extends to the outside of the outlet body 10. The receiving cavity 10A is connected to at least one set of coffee liquid feeding pipes 12 and one set of air conveying pipes 13. The air conveying pipe 13 is connected to one side of the coffee liquid feeding pipe 12. A side wall is sandwiched between the air conveying pipe 13 and the hot water pipe 11 to isolate them. The cover 20 connected to the outlet body 10 is also provided with a hot water inlet 21 and a coffee liquid inlet 22. The hot water inlet 21 is connected to the hot water pipe 11 through the top end of the hot water pipe 11, and the coffee liquid inlet 22 is connected to the receiving cavity 10A, forming an air-introducing structure. This breaks the negative pressure formed inside the coffee machine during the coffee making process, thus preventing coffee liquid from dripping at the outlet after the coffee liquid is made, and facilitating the flow of coffee liquid, thereby improving the overall working efficiency of the coffee machine.
[0043] To facilitate understanding, the working principle of this application is further described as follows: The coffee liquid outlet device allows coffee liquid to enter through the coffee liquid inlet 22 on the cover 20, flow through the interior of the outlet body 10, and, according to this design, flow out via two paths: the coffee liquid feeding pipe 12 and the coffee liquid outlet 122A. Since the receiving cavity 10A is a sealed structure, atmospheric pressure is conducted through the two air inlets 122B, and the gas enters the receiving cavity 10A through the air outlet 13A located at the upper end of the air conveying pipe 13. Therefore, no negative pressure is formed inside the receiving cavity 10A. After the coffee is made, the coffee liquid outlet 122A will not drip coffee, and the finished coffee liquid will flow out promptly.
[0044] Although this application has been described and illustrated with reference to specific embodiments thereof, such description and illustration are not limiting of this application. It will be readily understood by those skilled in the art that various changes can be made and equivalent elements can be substituted within embodiments without departing from the true spirit and scope of this application as defined by the appended claims. Illustrations may not be drawn to scale. Differences may exist between the technical representation in this application and actual implementation due to variables in the manufacturing process, etc. Other embodiments of this application may exist that are not specifically described. The description and illustrations should be considered illustrative rather than restrictive. Modifications can be made to adapt particular circumstances, materials, composition, methods, or processes to the objectives, spirit, and scope of this application. All such modifications fall within the scope of the appended claims. While the methods disclosed herein have been described with reference to specific operations performed in a particular order, it should be understood that these operations can be combined, subdivided, or reordered to form equivalent methods without departing from the teachings of this application. Therefore, unless specifically indicated herein, the order and grouping of operations do not limit this application.
Claims
1. A coffee liquid outlet device, characterized in that, include An outlet body (10) has an internal cavity (10A) formed inside the outlet body (10). A hot water pipe (11) is provided inside the outlet body (10). The hot water pipe (11) passes through the cavity (10A) and extends to the outside of the outlet body (10). The cavity (10A) is connected to at least a set of coffee liquid discharge pipes (12) and a set of air delivery pipes (13). The air delivery pipes (13) are connected to one side of the coffee liquid discharge pipes (12). A side wall is sandwiched between the air delivery pipes (13) and the coffee liquid discharge pipes (12) to separate them. A cover (20) is connected to the outlet body (10). The cover (20) is also provided with a hot water inlet (21) and a coffee liquid inlet (22). The hot water inlet (21) is connected to the hot water pipe (11) through the top end of the hot water pipe (11), and the coffee liquid inlet (22) is connected to the receiving cavity (10A).
2. The coffee liquid outlet device according to claim 1, characterized in that, The top end of the hot water pipe (11) is provided with an O-ring (111), and an O-ring (112) is provided inside the O-ring (111).
3. The coffee liquid outlet device according to claim 2, characterized in that, The lower end of the hot water pipe (11) is provided with a hot water outlet.
4. The coffee liquid outlet device according to claim 3, characterized in that, A set of coffee liquid feed tubes (12) includes two coffee liquid feed tubes (12).
5. The coffee liquid outlet device according to claim 4, characterized in that, The coffee liquid feeding pipe (12) includes a straight pipe body (121) and a conical pipe body (122) connected to the straight pipe body (121). The bottom end of the conical pipe body (122) is provided with a coffee liquid outlet (122A), and the center of the coffee liquid outlet (122A) is directly opposite to the center of the cross-section of the conical pipe body (122).
6. The coffee liquid outlet device according to claim 5, characterized in that, An air inlet (122B) is also provided on the inclined surface of the conical tube (122).
7. The coffee liquid outlet device according to claim 6, characterized in that, The inclination angle α of the inclined surface of the tapered tube (122) is 30° to 50°.
8. The coffee liquid outlet device according to claim 1, characterized in that, A set of the air delivery pipes (13) includes two air delivery pipes (13).
9. The coffee liquid outlet device according to claim 8, characterized in that, The lower end of the air delivery pipe (13) is connected to the air inlet (122B), and the upper end of the pipe is provided with an air outlet (13A), which is connected to the receiving cavity (10A).
10. The coffee liquid outlet device according to claim 9, characterized in that, The side wall of the cover (20) is provided with a square sealing groove (23) in the circumferential direction, and a square sealing ring (24) is provided in the square sealing groove (23).