Air inlet adjusting structure of coffee machine
By combining the knob bracket and steam valve seat in the air intake adjustment structure of the coffee machine, the problem of difficult milk output adjustment is solved, achieving precise control of milk output and improving the convenience and accuracy of milk frothing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG MASTER ELECTRICAL APPLIANCE CO LTD
- Filing Date
- 2025-05-12
- Publication Date
- 2026-05-01
AI Technical Summary
The milk flow rate of coffee machines on the market is difficult to adjust, making it inconvenient to make milk foam.
Design a coffee machine air intake adjustment structure that adjusts airflow to control milk output by cooperating with a knob bracket and a steam valve seat. The structure includes a combination of a steam valve, a knob, and a steam valve seat. The knob bracket can rotate to adjust the overlapping area of the slot and the opening, thereby achieving precise adjustment of airflow.
It enables precise adjustment of milk output, improving the convenience and control accuracy of milk foam preparation.
Smart Images
Figure CN224179540U_ABST
Abstract
Description
An air intake adjustment structure for a coffee machine Technical Field
[0001] This utility model relates to the technical field of coffee machine accessory structure, and in particular to a coffee machine air intake adjustment structure. Background Technology
[0002] Currently available coffee machines may have a milk tank for making milk foam, which mixes milk with steam to create milk foam that flows out through the milk outlet. However, the milk flow rate from the milk outlet is difficult to adjust. Summary of the Invention
[0003] The purpose of this invention is to provide an air intake adjustment structure for a coffee machine to adjust the milk output from the milk outlet.
[0004] To solve the above-mentioned technical problems, this utility model provides an air intake adjustment structure for a coffee machine, installed in the milk tank of the coffee machine. The air intake adjustment structure includes a steam valve, a knob, and a steam valve seat. The steam valve is connected to the steam pipe of the milk tank, and the steam valve seat is connected to the milk outlet pipe of the milk tank via the steam valve seat. The steam valve seat is connected to the milk suction pipe of the milk tank. The knob is mounted on the steam valve seat via a knob bracket. The knob bracket has a hollow structure, and its upper end is connected to the knob. The lower end of the bracket is inserted into the steam valve seat. The knob bracket is connected to the steam valve seat in a rotatable and vertically limited manner. A slot is opened on the side wall of the lower end of the knob bracket. The width of the slot gradually increases along the circumference of the knob bracket. The steam valve seat has an opening corresponding to the lower end of the knob bracket. When the opening coincides with the slot, the opening communicates with the interior of the steam valve seat through the slot and the knob bracket. The overlapping area of the opening and the slot gradually increases or decreases as the knob bracket rotates.
[0005] The further technical solution is as follows: the steam valve and the milk outlet tube are respectively located on the left and right sides of the steam valve seat, and the knob bracket and the milk suction tube are respectively located on the upper and lower ends of the steam valve seat.
[0006] The further technical solution is as follows: the outer side wall of the upper end of the knob bracket protrudes outward in the circumferential direction to form a convex edge; the outer side wall of the lower end of the knob bracket is provided with a protrusion above the slot; a locking position is formed between the protrusion and the convex edge; the shell of the milk box forms a limiting piece corresponding to the locking position; the limiting piece is disposed in the locking position so that the knob bracket is installed on the shell of the milk box in a rotatable and vertically limited manner; the steam valve seat is fixedly installed in the shell of the milk box; and the slot is located in the steam valve seat.
[0007] The further technical solution is as follows: the knob is sleeved on the upper end of the knob bracket, and the convex edge is located outside the shell of the milk box and is engaged with the inner side wall of the knob.
[0008] The further technical solution is as follows: the steam valve includes a first valve core and a second valve core, the two ends of the second valve core are respectively connected to the first valve core and the steam valve seat, the first valve core and the second valve core are hollow structures, so that the steam pipeline connects to the steam valve seat after passing through the first valve core and the second valve core in sequence.
[0009] The further technical solution is as follows: a connecting part communicating with the first valve core is provided on one side of the first valve core, one end of the second valve core is connected and communicated with the connecting part, and the other end of the second valve core is detachably connected to the steam valve seat.
[0010] A further technical solution is as follows: the connecting part is vertically disposed on the first valve core, so that the second valve core is vertically disposed on the first valve core through the connecting part.
[0011] A further technical solution is as follows: the outer wall of the connecting part is provided with a slot, and one end of the second valve core is provided with a plug corresponding to the slot. The plug is inserted into the slot so that the second valve core and the first valve core are detachably connected.
[0012] A further technical solution is as follows: the end of the first valve core away from the connecting part is connected to the steam pipe, and a silicone component is provided between the steam pipe and the first valve core.
[0013] A further technical solution is that the outer wall of the knob protrudes outward along the height direction to form a retaining edge.
[0014] The beneficial technical effects of this utility model are as follows: The air intake adjustment structure of this utility model is installed in the milk tank of the coffee machine. It consists of a knob, a steam valve connected to the steam pipe of the milk tank, and a steam valve seat connected to the steam valve, the milk outlet pipe, and the milk suction pipe of the milk tank. The knob is mounted on the steam valve seat via a knob bracket whose lower end is inserted into the steam valve seat. The knob bracket has a hollow main structure and is connected to the steam valve seat in a rotatable and vertically limited manner. A slot is provided on the side wall of the lower end of the knob bracket, and an opening is provided on the steam valve seat corresponding to the lower end of the knob bracket, allowing the knob bracket to rotate with the knob. The slot and opening coincide. When the slot and opening coincide, the opening communicates with the inside of the steam valve seat through the slot and the knob bracket, allowing external air to enter the steam valve seat through the opening and slot and the knob bracket. The width of the slot gradually increases along the circumference of the knob bracket, so that the overlapping area of the opening and slot gradually increases or decreases as the knob bracket rotates. By adjusting the size of the overlapping area of the opening and slot, the airflow into the steam valve seat can be adjusted, thereby adjusting the milk output of the milk outlet tube. The gradual increase or decrease of the overlapping area allows the airflow to change gradually, improving the adjustment accuracy. Attached Figure Description
[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0016] Figure 1 is a schematic diagram of the coffee machine air intake adjustment structure provided by this utility model in a specific application;
[0017] Figure 2 is an exploded structural diagram of the coffee machine air intake adjustment structure shown in Figure 1 when it is applied in a specific application.
[0018] Figure 3 is a schematic diagram of the steam valve seat of the coffee machine air intake adjustment structure provided by this utility model;
[0019] Figure 4 is a schematic diagram of the knob bracket of the coffee machine air intake adjustment structure provided by this utility model.
[0020] Figure 5 is a front view of the knob bracket shown in Figure 4. Detailed Implementation
[0021] 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, not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.
[0022] Please refer to Figures 1 to 5. Figure 1 is a schematic diagram of the specific application of the air intake adjustment structure for a coffee machine provided by this utility model. The air intake adjustment structure 10 is installed on the milk tank of the coffee machine. The air intake adjustment structure 10 includes a steam valve 11, a knob 12, and a steam valve seat 13. The steam valve 11 is connected to the steam pipe of the milk tank. The steam valve 11 is connected to the milk outlet pipe 22 of the milk tank through the steam valve seat 13. The steam valve seat 13 is connected to the milk suction pipe 21 of the milk tank. The knob 12 is installed on the steam valve seat 13 through a knob bracket 14. The knob bracket 14 has a hollow structure, and its upper end is connected to the knob 12. The lower end of the knob bracket 14 is inserted into the steam valve seat 13. The knob bracket 14 is connected to the steam valve seat 13 in a rotatable and vertically limited manner. A slot 141 is provided on the side wall of the lower end of the knob bracket 14. The width of the slot 141 gradually increases along the circumference of the knob bracket 14. The steam valve seat 13 is provided with an opening 131 corresponding to the lower end of the knob bracket 14. When the opening 131 coincides with the slot 141, the opening 131 communicates with the interior of the steam valve seat 13 through the slot 141 and the knob bracket 14. The overlapping area of the opening 131 and the slot 141 gradually increases or decreases as the knob bracket 14 rotates.
[0023] One end of the milk suction tube 21 is fitted with a sealing silicone ring and then inserted into the steam valve seat 13 to improve sealing. The lower end of the knob bracket 14 can be cylindrical so that the knob bracket 14 rotates with the knob 12. The coffee machine air intake adjustment structure 10 is installed in the milk tank of the coffee machine. It is configured with a knob 12, a steam valve 11 connected to the steam pipe of the milk tank, and a steam valve seat 13 connected to the steam valve 11, the milk outlet tube 22 of the milk tank, and the milk suction tube 21. The knob 12 is installed on the steam valve seat 13 through the knob bracket 14, whose lower end is inserted into the steam valve seat 13. The knob bracket 14 has a hollow main structure and is connected to the steam valve seat 13 in a rotatable and vertically limited manner. The side wall of the lower end of the knob bracket 14 has a slot 141. The steam valve seat 13 has a corresponding opening at the lower end of the knob bracket 14. The knob support 14 rotates with the knob 12 so that the slot 141 overlaps with the opening 131. When the opening 131 overlaps with the slot 141, the opening 131 communicates with the interior of the steam valve seat 13 through the slot 141 and the knob support 14, allowing external air to enter the steam valve seat 13 through the opening 131 and the slot 141 via the knob support 14. The width of the slot 141 gradually increases along the circumference of the knob support 14, so that the overlapping area of the opening 131 and the slot 141 gradually increases or decreases with the rotation of the knob support 14. The airflow into the steam valve seat 13 can be adjusted by adjusting the size of the overlapping area of the opening 131 and the slot 141, thereby adjusting the milk output of the milk outlet tube 22. The gradual increase or decrease of the overlapping area allows the airflow to change gradually, improving the adjustment accuracy.
[0024] Specifically, in this embodiment, the steam valve 11 and the milk outlet tube 22 are respectively located on the left and right sides of the steam valve seat 13, and the knob bracket 14 and the milk suction tube 21 are respectively located on the upper and lower ends of the steam valve seat 13.
[0025] Preferably, the right end of the steam valve seat 13 can be bent to form a milk outlet pipe connection end for connecting with the milk outlet pipe 22, the bend is an arc surface, and the included angle between the milk outlet pipe connection end and the main body of the steam valve seat 13 can be an obtuse angle.
[0026] Specifically, the outer side wall of the upper end of the knob bracket 14 protrudes outward in the circumferential direction to form a raised edge 143. The outer side wall of the lower end of the knob bracket 14 has a raised point 142 above the slot 141. A locking position is formed between the raised point 142 and the raised edge 143. The shell of the milk box forms a limiting piece corresponding to the locking position. The limiting piece is disposed in the locking position so that the knob bracket 14 is installed on the shell of the milk box in a rotatable and vertically limited manner. The steam valve seat 13 is fixedly installed in the shell of the milk box. The lower end of the knob bracket 14 is inserted into the steam valve seat 13. The raised point 142 is located outside the steam valve seat 13. The slot 141 is located in the steam valve seat 13 so that the knob bracket 14 is connected to the steam valve seat 13 in a rotatable and vertically limited manner.
[0027] Preferably, the housing of the milk box is provided with a stop block, so that when the knob support 14 is rotated to the position where the overlapping area of the opening 131 and the slot 141 is the smallest and / or the largest, the stop block abuts against the protrusion 142, thereby limiting the rotation range of the knob support 14.
[0028] Specifically, the knob 12 is sleeved on the upper end of the knob bracket 14, and the protruding edge 143 is located outside the shell of the milk box and is engaged with the inner side wall of the knob 12.
[0029] Preferably, the outer side wall of the protruding edge 143 has a recess along the circumferential direction, and the inner side wall of the knob 12 has a protrusion corresponding to the recess. The protrusion is inserted into the recess to connect the knob bracket 14 and the knob 12.
[0030] Preferably, the upper end of the knob bracket 14 includes two opposing support plates 144, wherein the knob 12 is recessed from the bottom to the top to form a connecting cavity for the upper end of the knob bracket 14, and the outer side formed by the two support plates 144 can be interference-fitted with the inner wall of the connecting cavity.
[0031] Preferably, the outer wall of the knob 12 protrudes outward along the height direction to form a retaining edge 121, so as to provide a force point for the user to rotate the knob 12.
[0032] Specifically, the steam valve 11 includes a first valve core 111 and a second valve core 112. The two ends of the second valve core 112 are respectively connected to the first valve core 111 and the steam valve seat 13. The first valve core 111 and the second valve core 112 have a hollow structure, allowing the steam pipe to connect to the steam valve seat 13 after sequentially passing through the first valve core 111 and the second valve core 112. The first valve core 111 and the second valve core 112 may be cylindrical. The port where the first valve core 111 connects to the steam pipe serves as the steam inlet of the coffee machine's air intake regulating structure.
[0033] Specifically, one side of the first valve core 111 is provided with a connecting portion 1111 communicating with the first valve core 111. One end of the second valve core 112 is connected and communicates with the connecting portion 1111, and the other end of the second valve core 112 is detachably connected to the steam valve seat 13, so that steam is input into the steam pipe to the first valve core 111 and then flows through the connecting portion 1111 to the second valve core 112 and enters the steam valve seat 13. The steam valve seat 13 can be threadedly connected to the second valve core 112.
[0034] Specifically, the connecting part 1111 is vertically disposed on the first valve core 111, so that the second valve core 112 is vertically disposed on the first valve core 111 through the connecting part 1111.
[0035] Specifically, the outer wall of the connecting part 1111 is provided with a slot 1112, and one end of the second valve core 112 is provided with a plug 1121 corresponding to the slot 1112. The plug 1121 is inserted into the slot 1112 so that the second valve core and the first valve core 111 can be detachably connected. The plug 1121 can be interference-fitted with the slot 1112.
[0036] Of course, in some embodiments, the first valve core 111 can be connected to the second valve core 112 by ultrasonic welding. In other embodiments, the first valve core 111 can be threadedly connected to the second valve core 112.
[0037] Specifically, the end of the first valve core 111 away from the connecting part 1111 is connected to the steam pipe, and a silicone part 101 is provided between the steam pipe and the first valve core 111 to improve the sealing performance.
[0038] In summary, the air intake adjustment structure of this utility model is installed in the milk tank of the coffee machine. It comprises a knob, a steam valve connected to the steam pipe of the milk tank, and a steam valve seat connected to the steam valve, the milk outlet pipe, and the milk suction pipe of the milk tank. The knob is mounted on the steam valve seat via a knob bracket whose lower end is inserted into the steam valve seat. The knob bracket has a hollow main structure and is connected to the steam valve seat in a rotatable and vertically limited manner. A slot is provided on the side wall of the lower end of the knob bracket, and an opening is provided on the steam valve seat corresponding to the lower end of the knob bracket, allowing the knob bracket to rotate with the knob, thus allowing the slot and opening to interact. When the opening and the slot coincide, the opening connects to the interior of the steam valve seat via the slot and the knob bracket, allowing external air to enter the steam valve seat through the opening and slot and the knob bracket. The width of the slot gradually increases along the circumference of the knob bracket, so that the overlapping area of the opening and the slot gradually increases or decreases as the knob bracket rotates. By adjusting the size of the overlapping area of the opening and the slot, the airflow into the steam valve seat can be adjusted, thereby adjusting the milk output of the milk outlet tube. The gradual increase or decrease of the overlapping area allows the airflow to change gradually, improving the adjustment accuracy.
[0039] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this utility model, and these modifications or substitutions should all be covered within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.
Claims
1. A coffee machine air intake regulating structure, characterized by, Installed on the milk tank of a coffee machine, the air intake adjustment structure of the coffee machine includes a steam valve, a knob, and a steam valve seat. The steam valve is connected to the steam pipe of the milk tank, and the steam valve seat is connected to the milk outlet pipe of the milk tank. The steam valve seat is connected to the milk suction pipe of the milk tank. The knob is mounted on the steam valve seat via a knob bracket. The knob bracket has a hollow structure. The upper end of the knob bracket is connected to the knob, and the lower end of the knob bracket is inserted into the steam valve seat. The knob bracket is rotatably connected to the steam valve seat in a way that limits its vertical movement. A slot is formed on the side wall of the lower end of the knob bracket. The width of the slot gradually increases along the circumference of the knob bracket. The steam valve seat has an opening corresponding to the lower end of the knob bracket. When the opening coincides with the slot, the opening communicates with the interior of the steam valve seat through the slot and the knob bracket. The overlapping area of the opening and the slot gradually increases or decreases as the knob bracket rotates.
2. The coffee machine air intake regulating structure according to claim 1, characterized in that, The steam valve and the milk outlet tube are respectively located on the left and right sides of the steam valve seat, and the knob bracket and the milk suction tube are respectively located at the upper and lower ends of the steam valve seat.
3. The air intake adjustment structure for a coffee machine according to claim 1, characterized in that, The upper end of the knob bracket has a convex edge protruding outward along the circumferential direction on the outer side wall. The lower end of the knob bracket has a protrusion above the slot on the outer side wall. A locking position is formed between the protrusion and the convex edge. The milk box shell has a limiting piece corresponding to the locking position. The limiting piece is located in the locking position so that the knob bracket is installed on the milk box shell in a rotatable and vertically limited manner. The steam valve seat is fixedly installed in the milk box shell, and the slot is located in the steam valve seat.
4. The coffee machine air intake regulating structure according to claim 3, characterized in that, The knob is sleeved on the upper end of the knob bracket, and the protruding edge is located outside the shell of the milk box and is engaged with the inner side wall of the knob.
5. The coffee machine air intake regulating structure according to claim 1, characterized in that, The steam valve includes a first valve core and a second valve core. The two ends of the second valve core are respectively connected to the first valve core and the steam valve seat. The first valve core and the second valve core are hollow structures, so that the steam pipeline connects to the steam valve seat after passing through the first valve core and the second valve core in sequence.
6. The air intake adjustment structure for a coffee machine according to claim 5, characterized in that, The first valve core has a connecting part on one side that communicates with the first valve core, one end of the second valve core is connected to and communicates with the connecting part, and the other end of the second valve core is detachably connected to the steam valve seat.
7. The air intake adjustment structure for a coffee machine according to claim 6, characterized in that, The connecting part is vertically disposed on the first valve core, so that the second valve core is vertically disposed on the first valve core through the connecting part.
8. The coffee machine air intake regulating structure according to claim 6, characterized in that, The outer wall of the connecting part is provided with a slot, and one end of the second valve core is provided with a plug corresponding to the slot. The plug is inserted into the slot so that the second valve core and the first valve core can be detachably connected.
9. The coffee machine air intake regulating structure according to claim 6, characterized in that, The end of the first valve core away from the connecting part is connected to the steam pipe, and a silicone part is provided between the steam pipe and the first valve core.
10. The air intake adjustment structure for a coffee machine according to claim 1, characterized in that, The outer wall of the knob protrudes outward along the height direction to form a retaining edge.