Water outlet structure of coffee machine
By introducing a flow regulating cylinder and a sealing groove into the water outlet structure of the coffee machine, combined with the design of a micro servo motor-driven worm gear mechanism, a water storage tank, and a drainage system, the flow rate can be regulated and water can be collected. This solves the problem of the nozzle flow rate not being adjustable, ensures the cleaning effect and avoids water waste, and achieves flexible water flow regulation and effective water resource utilization.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- MIANYANG HIGH-TECH ZONE HENGAO ELECTRONIC TECH CO LTD
- Filing Date
- 2025-05-28
- Publication Date
- 2026-05-05
AI Technical Summary
The nozzle flow rate of existing coffee machine water outlet structures is not adjustable, resulting in poor cleaning effect or water waste.
A water outlet structure for a coffee machine was designed, including a flow regulating cylinder and a sealing groove. The flow rate is regulated by a worm gear mechanism driven by a micro servo motor. It is also equipped with a water storage tank and a drainage system. Through the combined use of the sealing groove and the drainage components, precise flow control and effective water collection are achieved.
It enables flexible adjustment of water flow, ensuring cleaning effectiveness, reducing water waste, and maintaining a clean and hygienic operating environment.
Smart Images
Figure CN224193301U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of coffee machine technology, specifically to a water outlet structure for a coffee machine. Background Technology
[0002] A coffee machine is a device used to make coffee. It uses different working principles and technologies to grind coffee beans into powder, then uses hot water to extract flavor compounds and caffeine from the coffee powder, thus creating a variety of delicious coffee beverages. Some high-end coffee machines are equipped with a dedicated, independent rinsing nozzle. This nozzle uses a separate water system to spray water to rinse the inside of the coffee cup. Some coffee machines integrate the rinsing function into the spout. By controlling the valve, the water flows out in different patterns, which can be used for both making coffee and rinsing the coffee cup.
[0003] Based on the above, the inventors have discovered the following problems: The flow rate of the nozzles connected to the water outlet structure of current coffee machines is not adjustable. When cleaning coffee cups, different levels and areas of dirt require different water flow rates. The non-adjustable nozzle flow rate may result in insufficient water pressure to clean stubborn stains, while when a large amount of water is not needed, such as a simple rinse of the coffee cup, the non-adjustable high-flow nozzle will continuously discharge excessive water, leading to water waste.
[0004] Therefore, in view of this, we have studied and improved the existing structure and its shortcomings, and provided a water outlet structure for a coffee machine in order to achieve a more practical purpose. Utility Model Content
[0005] The purpose of this invention is to provide a water outlet structure for a coffee machine to solve the problems mentioned in the background art.
[0006] In view of the above problems, the technical solution proposed by this utility model is as follows:
[0007] A water outlet structure for a coffee machine includes a worktable assembly, a water outlet assembly, a nozzle assembly, and a drain assembly. The water outlet assembly and the drain assembly are both located inside the worktable assembly. The nozzle assembly is located outside one end of the water outlet assembly. The water outlet assembly and the nozzle assembly are used to rinse coffee cups. The drain assembly is used to drain water. The nozzle assembly includes a housing. A flow chamber is formed inside the housing. A flow regulating cylinder is rotatably mounted inside the flow chamber. The outer wall of the flow regulating cylinder is clearance-fitted with the inner wall of the housing. Several second flow holes are formed on both outer sides of the flow regulating cylinder. Several first flow holes are formed on both inner sides of the housing. A mounting box is installed at the top of the housing. A nozzle is rotatably connected inside the mounting box. The bottom end of the nozzle is connected to the top end of the flow regulating cylinder.
[0008] Furthermore, the cross-section of the shell is annular, and the area of the several second flow holes on the outer sides of the flow regulating cylinder is the same as the area of the several first flow holes on the inner sides of the shell.
[0009] The beneficial effect of adopting the above-mentioned further scheme is that, since the area of the second flow orifice is the same as that of the first flow orifice, the flow rate can be controlled when the flow regulating cylinder is rotated to change the relative position of the first flow orifice and the second flow orifice.
[0010] Furthermore, the outer wall of the flow regulating cylinder is provided with sealing grooves near the top and bottom ends, and sealing rings are provided inside the two sealing grooves. The outer walls of the two sealing rings are fixedly connected to the inner wall of the shell, and the inner walls of the two sealing grooves are respectively in sliding fit with the outer walls of the two sealing rings.
[0011] The beneficial effect of adopting the above-mentioned further solution is that, through the combined use of the sealing ring and the sealing groove, the sealing ring effectively prevents water from leaking from the gap between the flow regulating cylinder and the housing, ensuring the sealing performance when the flow regulating cylinder rotates.
[0012] Furthermore, a worm gear is fitted on the outer wall of the nozzle, and fixed plates are installed on both sides of the bottom of the mounting box. A worm is rotatably connected between a pair of fixed plates, and the worm and the worm gear mesh with each other. A micro servo motor is installed on one side of the outer wall of one of the fixed plates, and the output end of the micro servo motor is connected to the worm for transmission.
[0013] The beneficial effect of adopting the above-mentioned further solution is that by setting a micro servo motor, when the micro servo motor is started, it drives the worm gear to rotate, thereby driving the worm wheel to rotate and thus realizing the rotation of the nozzle and the flow regulating cylinder. This causes the first flow hole and the second flow hole to be staggered, so that the area of the second flow hole is partially blocked at the part of the inner wall of the housing where the first flow hole is not opened, thereby realizing flow regulation.
[0014] Furthermore, the workbench assembly includes an operating table, the top surface of which is provided with a water level groove, and a pin is installed on one side of the inner wall of the water level groove.
[0015] The advantage of adopting the above-mentioned further solution is that, through the combined use of the water level tank and the ejector pin, it can be used to place coffee cups, making it convenient for rinsing operations.
[0016] Furthermore, the water outlet assembly includes a water storage tank, which is located on one side of the bottom of the operating platform. A pump is installed on one side of the outer wall of the water storage tank. The water inlet end of the pump is connected to a water inlet pipe, which is connected to the water storage tank at the end away from the pump. The water outlet end of the pump is connected to a water outlet pipe, which extends through the water level trough into the interior at the end away from the pump and is connected to the housing.
[0017] The beneficial effect of adopting the above-mentioned further solution is that, by setting up a water outlet assembly, a water storage tank is used to store the water required for rinsing, and a pump can draw water from the water storage tank through the water inlet pipe and deliver it to the nozzle assembly for rinsing through the water outlet pipe.
[0018] Furthermore, the drainage assembly includes a drain pipe and a drain tank. One end of the drain pipe passes through a water level trough, and the drain tank is located at the bottom of the inside of the operating platform, away from the water storage tank. The drain pipe extends into the interior of the drain tank at the end away from the water level trough.
[0019] The beneficial effect of adopting the above-mentioned further solution is that, by setting up a drainage component, after rinsing the coffee cups, the wastewater can flow into the drainage tank through the drain pipe, which achieves effective collection of rinsing water, avoids wastewater residue on the work surface, and maintains a clean and hygienic working environment.
[0020] Compared with the prior art, the beneficial effects of this utility model are as follows: The water outlet structure of this coffee machine, through the cooperation of the water level groove and the ejector pin, can be used to place coffee cups for convenient rinsing. Activating the micro servo motor drives the worm gear to rotate, which in turn rotates the worm wheel, thereby rotating the nozzle and the flow regulating cylinder. When the flow regulating cylinder is rotated to change the relative position of the first and second flow holes, the water flow rate can be controlled. Through the cooperation of the sealing ring and the sealing groove, the sealing ring effectively prevents water leakage from the gap between the flow regulating cylinder and the housing, ensuring the sealing performance when the flow regulating cylinder rotates. The water storage tank stores the water required for rinsing. The pump can draw water from the water storage tank through the inlet pipe and deliver it to the nozzle assembly for rinsing through the outlet pipe. After rinsing the coffee cups, wastewater can flow into the drain tank through the drain pipe, achieving effective collection of rinsing water, avoiding wastewater residue on the operating table, and maintaining a clean and hygienic operating environment. Attached Figure Description
[0021] Figure 1 A three-dimensional structural diagram of the water outlet structure of a coffee machine provided by this utility model;
[0022] Figure 2 A three-dimensional structural diagram of the water outlet component and the drainage component of a coffee machine provided by this utility model;
[0023] Figure 3 An exploded three-dimensional structural diagram of the nozzle assembly of the water outlet structure of a coffee machine provided by this utility model;
[0024] Figure 4 A side cross-sectional view of the nozzle assembly of a coffee machine's water outlet structure provided by this utility model;
[0025] Figure 5The present invention provides a water outlet structure for a coffee machine. Figure 4 Enlarged schematic diagram of structure A in the middle.
[0026] In the diagram: 1. Workbench assembly; 11. Control panel; 12. Water level tank; 13. Ejector pin; 2. Water outlet assembly; 21. Water storage tank; 22. Pump; 23. Water outlet pipe; 3. Nozzle assembly; 31. Housing; 32. Flow chamber; 33. Flow regulating cylinder; 34. First flow orifice; 35. Second flow orifice; 36. Mounting box; 37. Nozzle; 38. Worm gear; 39. Fixing plate; 310. Worm; 311. Miniature servo motor; 4. Drainage assembly; 41. Drainage pipe; 42. Drainage tank. Detailed Implementation
[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0028] Please see Figures 1-5 This utility model provides a technical solution: a water outlet structure for a coffee machine, including a workbench assembly 1, a water outlet assembly 2, a nozzle assembly 3, and a drainage assembly 4. The water outlet assembly 2 and the drainage assembly 4 are both disposed inside the workbench assembly 1. The nozzle assembly 3 is disposed outside one end of the water outlet assembly 2. The water outlet assembly 2 and the nozzle assembly 3 are used to rinse coffee cups, and the drainage assembly 4 is used to drain water. The nozzle assembly 3 includes a housing 31. A flow cavity 32 is opened inside the housing 31. A flow regulating cylinder 33 is rotatably disposed inside the flow cavity 32. The outer wall of the flow regulating cylinder 33 is clearance-fitted with the inner wall of the housing 31. A plurality of second flow holes 35 are opened on both sides of the outer side of the flow regulating cylinder 33. A plurality of first flow holes 34 are opened on both sides of the inner wall of the housing 31. A mounting box 36 is installed on the top of the housing 31. A nozzle 37 is rotatably connected inside the mounting box 36. The bottom end of the nozzle 37 is connected to the top end of the flow regulating cylinder 33.
[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0030] Please see Figures 1-5This utility model provides a technical solution: the cross-section of the shell 31 is annular, and the area of several second flow holes 35 on both sides of the outer side of the flow regulating cylinder 33 is the same as the area of several first flow holes 34 on both sides of the inner wall of the shell 31. Sealing grooves are provided near the top and bottom of the outer wall of the flow regulating cylinder 33, and sealing rings are provided inside both sealing grooves. The outer walls of both sealing rings are fixedly connected to the inner wall of the shell 31. The inner walls of the two sealing grooves slide against the outer walls of the two sealing rings. A worm gear 38 is fitted onto the outer wall of the nozzle 37. Fixing plates 39 are installed on both sides of the bottom of the mounting box 36. A worm 310 is rotatably connected between a pair of fixing plates 39, and the worm 310 meshes with the worm gear 38. A micro servo motor 311 is installed on one side of the outer wall of one of the fixing plates 39. The output end of 11 is connected to the worm gear 310 for transmission. Since the area of the second flow hole 35 is the same as that of the first flow hole 34, the flow rate can be controlled when the flow regulating cylinder 33 is rotated to change the relative position of the first flow hole 34 and the second flow hole 35. Through the cooperation of the sealing ring and the sealing groove, the sealing ring effectively prevents water from leaking from the gap between the flow regulating cylinder 33 and the housing 31, ensuring the sealing performance when the flow regulating cylinder 33 rotates. By setting a micro servo motor 311, when the micro servo motor 311 is started, it drives the worm gear 310 to rotate, which drives the worm wheel 38 to rotate, thereby realizing the rotation of the nozzle 37 and the flow regulating cylinder 33. This causes the first flow hole 34 and the second flow hole 35 to be staggered, so that the area of the second flow hole 35 is partially blocked at the point where the first flow hole 34 is not opened on the inner wall of the housing 31, thereby realizing the flow rate regulation.
[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0032] Please see Figures 1-5This utility model provides a technical solution: the workbench assembly 1 includes an operating table 11, the top surface of the operating table 11 is provided with a water level groove 12, and a pin 13 is installed on one side of the inner wall of the water level groove 12; the water outlet assembly 2 includes a water storage tank 21, which is located on one side of the bottom of the operating table 11, and a pump 22 is installed on one side of the outer wall of the water storage tank 21; the water inlet end of the pump 22 is connected to a water inlet pipe, and the end of the water inlet pipe away from the pump 22 is connected to the water storage tank 21; the water outlet end of the pump 22 is connected to a water outlet pipe 23, and the end of the water outlet pipe 23 away from the pump 22 extends through the water level groove 12 into the interior and is connected to the housing 31; the drainage assembly 4 includes a drain pipe 41 and a drain tank 42, and one end of the drain pipe 41 extends through the water level groove 12. The drain tank 42 is located at the bottom of the inside of the workbench 11, away from the water storage tank 21. The drain pipe 41 extends into the drain tank 42 from the end away from the water level tank 12. With the cooperation of the water level tank 12 and the ejector pin 13, it can be used to place coffee cups for easy rinsing. The water storage tank 21 is used to store the water required for rinsing by setting the water outlet component 2. The pump 22 can draw water from the water storage tank 21 through the water inlet pipe and deliver it to the nozzle component 3 for rinsing through the water outlet pipe 23. By setting the drain component 4, after rinsing the coffee cups, the wastewater can flow into the drain tank 42 through the drain pipe 41, realizing the effective collection of rinsing water, avoiding the residue of wastewater on the workbench 11, and maintaining the cleanliness and hygiene of the operating environment.
[0033] Specifically, the working principle of the water outlet structure of this coffee machine is as follows: During use, the water level tank 12 and the ejector pin 13 are used to place the coffee cup for easy rinsing. The micro servo motor 311 is activated to drive the worm gear 310 to rotate, which in turn drives the worm wheel 38 to rotate, thereby rotating the nozzle 37 and the flow regulating cylinder 33. When the flow regulating cylinder 33 is rotated to change the relative position of the first flow hole 34 and the second flow hole 35, the water flow rate can be controlled. Through the cooperation of the sealing ring and the sealing groove, the sealing ring effectively prevents water from leaking from the gap between the flow regulating cylinder 33 and the housing 31, ensuring the sealing performance of the flow regulating cylinder 33 when it rotates. The water storage tank 21 is used to store the water required for rinsing. The pump 22 can draw water from the water storage tank 21 through the water inlet pipe and deliver it to the nozzle assembly 3 for rinsing through the water outlet pipe 23. After rinsing the coffee cup, the wastewater can flow into the drain tank 42 through the drain pipe 41, realizing the effective collection of rinsing water, avoiding the residue of wastewater on the operating table 11, and maintaining the cleanliness and hygiene of the operating environment.
Claims
1. A water outlet structure for a coffee machine, characterized in that, The system includes a workbench assembly (1), a water outlet assembly (2), a nozzle assembly (3), and a drainage assembly (4). The water outlet assembly (2) and the drainage assembly (4) are both located inside the workbench assembly (1). The nozzle assembly (3) is located outside one end of the water outlet assembly (2). The water outlet assembly (2) and the nozzle assembly (3) are used to rinse coffee cups. The drainage assembly (4) is used to drain water. The nozzle assembly (3) includes a housing (31). A flow cavity (32) is formed inside the housing (31). The flow regulating cylinder (33) is rotatably provided inside the housing (31). The outer wall of the flow regulating cylinder (33) is clearance-fitted with the inner wall of the housing (31). Several second flow holes (35) are provided on both sides of the outer side of the flow regulating cylinder (33). Several first flow holes (34) are provided on both sides of the inner wall of the housing (31). An installation box (36) is installed at the top of the housing (31). A nozzle (37) is rotatably connected inside the installation box (36). The bottom end of the nozzle (37) is connected to the top end of the flow regulating cylinder (33).
2. The water outlet structure of a coffee machine according to claim 1, characterized in that, The cross-section of the housing (31) is annular, and the area of the second flow holes (35) on the outer sides of the flow regulating cylinder (33) is the same as the area of the first flow holes (34) on the inner sides of the housing (31).
3. The water outlet structure of a coffee machine according to claim 1, characterized in that, The outer wall of the flow regulating cylinder (33) is provided with sealing grooves near the top and bottom. Both sealing grooves are provided with sealing rings. The outer walls of the two sealing rings are fixedly connected to the inner wall of the housing (31). The inner walls of the two sealing grooves are respectively slidably engaged with the outer walls of the two sealing rings.
4. The water outlet structure of a coffee machine according to claim 1, characterized in that, The nozzle (37) is fitted with a worm gear (38) on its outer wall. Fixing plates (39) are installed on both sides of the bottom of the mounting box (36). A worm (310) is rotatably connected between a pair of fixing plates (39). The worm (310) and the worm gear (38) mesh with each other. A micro servo motor (311) is installed on one side of the outer wall of one of the fixing plates (39). The output end of the micro servo motor (311) is connected to the worm (310) for transmission.
5. The water outlet structure of a coffee machine according to claim 1, characterized in that, The workbench assembly (1) includes an operating table (11), the top surface of which is provided with a water level groove (12), and a pin (13) is installed on one side of the inner wall of the water level groove (12).
6. The water outlet structure of a coffee machine according to claim 5, characterized in that, The water outlet assembly (2) includes a water storage tank (21), which is located on one side of the bottom of the operating table (11). A pump (22) is installed on one side of the outer wall of the water storage tank (21). The water inlet end of the pump (22) is connected to a water inlet pipe. The end of the water inlet pipe away from the pump (22) is connected to the water storage tank (21). The water outlet end of the pump (22) is connected to a water outlet pipe (23). The end of the water outlet pipe (23) away from the pump (22) extends through the water level trough (12) into the interior and is connected to the housing (31).
7. The water outlet structure of a coffee machine according to claim 6, characterized in that, The drainage assembly (4) includes a drain pipe (41) and a drain box (42). One end of the drain pipe (41) passes through the water level trough (12). The drain box (42) is located at the bottom of the inside of the operating table (11) away from the water storage tank (21). The drain pipe (41) extends into the inside of the drain box (42) at the end away from the water level trough (12).