Fresh milk vending machine
By incorporating a refrigerated compartment and a normal temperature compartment into the fresh milk vending machine, and combining the milk dispensing mechanism and the cleaning mechanism, the issues of temperature and cleaning are solved, enabling diversified output of fresh milk temperature and automated cleaning, thereby improving the hygiene and safety of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-12
- Publication Date
- 2026-03-24
AI Technical Summary
Existing fresh milk vending machines cannot meet the diverse needs of different consumers for fresh milk temperature, and the cleaning method requires manual operation, which is inefficient and affects the quality and hygiene of fresh milk.
The machine is designed with a refrigeration compartment and a normal temperature compartment, equipped with a milk dispensing mechanism and a cleaning mechanism. The temperature of fresh milk is regulated and the machine is automatically cleaned through a milk pump and an electric heating tank. The flow channel is controlled by a solenoid valve, combined with a double-layer spiral heating tube and an automatic cleaning system to meet different temperature requirements and ensure hygiene.
It enables diverse output of fresh milk temperature, and automated cleaning reduces manual intervention, improving the hygiene and safety of the equipment, thereby enhancing consumer trust and health protection.
Smart Images

Figure CN224035938U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of vending machine technology, specifically a fresh milk vending machine. Background Technology
[0002] In today's beverage market, milk tea shops are beloved by consumers for their diverse flavors and personalized products. As consumers' demands for beverage quality continue to rise, fresh milk, as a high-quality ingredient, is being used more and more widely in milk tea preparation. With technological advancements, fresh milk vending machines have emerged, providing milk tea shops with a more convenient way to obtain and sell milk.
[0003] Existing fresh milk vending machines still have many problems in actual use. On the one hand, different consumers have different requirements for the drinking temperature of fresh milk. Some need fresh milk that has been kept refrigerated, while others prefer it warm. However, most existing vending machines can only provide fresh milk at a single temperature, which cannot meet the different needs of customers. On the other hand, milk residue easily accumulates on the milk dispensing pipes and other components of fresh milk vending machines. If they are not cleaned in a timely and effective manner, it will not only affect the quality and taste of the fresh milk, but may also breed bacteria, posing a threat to consumers' health. The cleaning methods on some existing dairy vending machines often require manual operation, which consumes a lot of manpower and time, is inefficient, and cannot meet the requirements for efficient equipment maintenance in commercial operations. Utility Model Content
[0004] In view of the problems existing in the prior art, this utility model discloses a fresh milk vending machine. The technical solution adopted is as follows: it includes a machine body, on which a refrigeration chamber and a normal temperature chamber are provided. A door that rotatably installs with the refrigeration chamber and the normal temperature chamber is installed on the side of the machine body. A control module and buttons are fixedly installed on the top of the machine body. An L-shaped support plate is fixedly installed at the bottom of the normal temperature chamber. A U-shaped milk outlet pipe is fixedly installed on the top of the machine body. A three-way connector is fixedly installed in the cavity at the upper end of the machine body. One of the interfaces on the three-way connector is connected to the milk outlet pipe. A milk dispensing mechanism is installed inside the machine body. A cleaning mechanism that cooperates with the milk dispensing mechanism is installed inside the normal temperature chamber.
[0005] The milk dispensing mechanism includes a hot milk tube, a milk pump, a milk tube, a solenoid valve, a low-temperature tube, a heating tube, an electric heating barrel, and a milk container. The milk container is placed in a refrigerated compartment, and the electric heating barrel is placed in a room temperature compartment. The heating tube is a metal tube with a double-layer spiral structure. One end of the heating tube is connected to one end of the milk tube, and the other end of the milk tube extends through a through-hole on the side wall of the room temperature compartment into the interior of the milk container. A milk pump is installed on the milk tube and is fixedly installed on the side wall of the room temperature compartment. The milk outlet on the side of the milk tube is connected to one end of the low-temperature tube, and the other end of the low-temperature tube is connected to one of the interfaces of a three-way connector. The other end of the heating tube is connected to one end of the hot milk tube, and the other end of the hot milk tube is connected to one of the interfaces of the three-way connector. Solenoid valves are installed on both the milk tube and the low-temperature tube. The milk pump, solenoid valves, and buttons are electrically connected to a control module.
[0006] As a preferred technical solution of this utility model, the cleaning mechanism includes a clean water tank, a water pipe and an inlet solenoid valve. The clean water tank is placed at the bottom of the room temperature chamber. The water outlet on the side of the clean water tank is connected to one end of the water pipe, and the other end of the water pipe is connected to the water inlet on the side of the milk pipe. An inlet solenoid valve is installed on the water pipe. The cleaning pump and the inlet solenoid valve are electrically connected to the control module.
[0007] As a preferred embodiment of this utility model, the water inlet on the side of the electric heating barrel is connected to one end of the connecting pipe, the other end of the connecting pipe is connected to the water outlet on the side of the water pipe, a water-filling solenoid valve is installed on the connecting pipe, and the water-filling solenoid valve is electrically connected to the control module.
[0008] As a preferred embodiment of this utility model, a sewage tank is placed on top of the support plate, and the inlet at the top of the sewage tank is connected to one end of a sewage pipe.
[0009] As a preferred technical solution of this utility model, a water tank is fixedly installed in the groove on the top of the machine body, a drain plate is placed in the water tank, and a teardrop-shaped through groove is opened on the drain plate. The through groove is located directly below the milk outlet on the milk outlet pipe, and the sewage outlet at the bottom of the water tank is connected to the other end of the sewage pipe.
[0010] As a preferred embodiment of this utility model, four positioning posts are fixedly installed at the bottom of the water tank. The upper ends of the four positioning posts pass through four through holes at the four corners of the bottom of the splash guard. The middle part of the splash guard is raised, and the splash guard is located directly below the teardrop-shaped through groove on the drain plate.
[0011] As a preferred embodiment of this utility model, universal wheels are fixedly installed at the four corners of the bottom of the machine body.
[0012] The beneficial effects of this utility model are:
[0013] 1. This utility model uses a refrigeration chamber to refrigerate fresh milk, keeping it fresh. A milk pump delivers room-temperature milk (0-10℃) from the milk container through a milk tube, a low-temperature tube, and a three-way connector to the milk outlet tube, achieving room-temperature milk output. When warm fresh milk (50-60℃) is needed, the milk pump delivers room-temperature milk through the milk tube to the heating tube. An electric heating tank heats the water inside, transferring heat to the metal heating tube. Combined with the double-layer spiral structure of the heating tube, the fresh milk inside is heated before being output, thus meeting the diverse temperature requirements of different consumers. After milk dispensing, the milk pump delivers clean water from a water tank through a water pipe to the milk tube to rinse the milk tube and related dispensing components. This automatic cleaning method eliminates the need for manual operation, saving manpower and time, ensuring timely and comprehensive cleaning, effectively preventing milk residue from breeding bacteria, guaranteeing the quality and hygiene safety of fresh milk, and enhancing consumer trust in the product.
[0014] 2. Water can be added to the electric heating tank by introducing water from the pipe when the tank is low via a water-adding solenoid valve and connecting pipe. The teardrop-shaped groove on the drain plate effectively collects fresh milk dripping during milk collection, preventing it from spilling onto the outside of the equipment and causing contamination. The splash guard is located directly below the groove on the drain plate and has a raised center to prevent fresh milk from splashing out during milk collection, further improving the hygiene and safety of the equipment. The splash guard is also easy to disassemble for cleaning, preventing dirt and grime from accumulating. The water tank collects cleaning water, and the drain pipe and wastewater tank collect wastewater for subsequent treatment. The casters allow the fresh milk vending machine to be easily moved and its position can be flexibly adjusted according to the needs of different locations. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0016] Figure 2 This is a schematic diagram of the milk dispensing mechanism of this utility model;
[0017] Figure 3 This is a schematic diagram of the cleaning mechanism of this utility model;
[0018] Figure 4 This is a schematic diagram of the three-way connector structure of this utility model;
[0019] Figure 5 This is a schematic diagram of the internal structure of the water tank of this utility model.
[0020] In the diagram: 1. Main body, 101. Refrigerated compartment, 102. Normal temperature compartment, 2. Door, 3. Control module, 4. Button, 5. Support plate, 6. Milk dispensing mechanism, 61. Normal temperature tube, 62. Milk pump, 63. Milk tube, 64. Solenoid valve, 65. Low temperature tube, 66. Heating tube, 67. Electric heating tank, 68. Milk tank, 7. Milk dispensing tube, 8. T-connector, 9. Cleaning mechanism, 91. Clean water tank, 92. Water pipe, 93. Water inlet solenoid valve, 10. Water filling solenoid valve, 11. Connecting pipe, 12. Sewage pipe, 13. Sewage tank, 14. Water tank, 15. Draining board, 16. Positioning post, 17. Splash guard, 18. Casters. Detailed Implementation
[0021] Example 1
[0022] like Figures 1 to 5As shown, this utility model discloses a fresh milk vending machine. The technical solution includes a body 1, with casters 18 fixedly installed at the four corners of the bottom of the body 1. The casters 18 allow the fresh milk vending machine to be easily moved and its position can be flexibly adjusted according to the needs of different locations. The body 1 is provided with a refrigeration chamber 101 and a normal temperature chamber 102. A door 2 that rotatably installs on the side of the body 1 to cooperate with the refrigeration chamber 101 and the normal temperature chamber 102 is installed. A control module 3 and a button 4 are fixedly installed on the top of the body 1. A water tank 14 is fixedly installed in a groove on the top of the body 1. A drain plate 15 is placed in the water tank 14. A teardrop-shaped groove is opened on the drain plate 15, which is located at the milk outlet pipe 7. Directly below the milk outlet, the teardrop-shaped channel on the drain plate 15 effectively collects fresh milk dripping during milk collection, preventing it from spilling onto the outside of the equipment and causing contamination. The drain outlet at the bottom of the water tank 14 connects to the other end of the wastewater pipe 12. The water tank 14 collects cleaning water, and the wastewater is collected through the drain pipe 12 and wastewater tank 11 for subsequent treatment. Four positioning posts 16 are fixedly installed at the bottom of the water tank 14. The upper ends of the four positioning posts 16 pass through four through holes at the four corners of the bottom of the splash guard 17. The splash guard 17 has a raised center, located directly below the channel on the drain plate 15, which prevents fresh milk from splashing out during milk collection, further improving efficiency. To ensure the hygiene and safety of the equipment, the splash guard 17 is located directly below the teardrop-shaped groove on the drain plate 15. An L-shaped support plate 5 is fixedly installed at the bottom of the ambient temperature chamber 102, and a wastewater tank 13 is placed on top of the support plate 5. The inlet of the wastewater tank 13 is connected to one end of the wastewater pipe 12. A U-shaped milk outlet pipe 7 is fixedly installed on the top of the machine body 1. A three-way connector 8 is fixedly installed in the cavity at the upper end of the machine body 1, and one of the interfaces on the three-way connector 8 is connected to the milk outlet pipe 7. A milk dispensing mechanism 6 is installed inside the machine body 1. A cleaning mechanism 9, which cooperates with the milk dispensing mechanism 6, is installed inside the ambient temperature chamber 102. The cleaning mechanism 9 includes a clean water tank 91, a water pipe 92, and a water inlet solenoid valve 93. 4. Placed at the bottom of the ambient temperature chamber 102, the water outlet on the side of the clean water tank 91 is connected to one end of the water pipe 92, and the other end of the water pipe 92 is connected to the water inlet on the side of the milk tube 63. A water inlet solenoid valve 93 is installed on the water pipe 92, and the water inlet solenoid valve 94 is electrically connected to the control module 3. The clean water in the clean water tank 91 is transported to the milk tube 63 through the water pipe 92 by the milk pump 62 to rinse the milk tube 63 and related milk outlet components. This automatic cleaning method does not require manual operation, which not only saves manpower and time, but also ensures the timeliness and comprehensiveness of cleaning, effectively avoids the growth of bacteria from milk residue, ensures the quality and hygiene safety of fresh milk, and enhances consumers' trust in the product.
[0023] The milk dispensing mechanism 6 includes a milk heating pipe 61, a milk pump 62, a milk pipe 63, a solenoid valve 64, a low-temperature pipe 65, a heating pipe 66, an electric heating tank 67, and a milk container 68. The milk container 68 is placed in the refrigerator compartment 101, and the electric heating tank 67 is placed in the ambient temperature compartment 102. The water inlet on the side of the electric heating tank 67 is connected to one end of a connecting pipe 11, and the other end of the connecting pipe 11 is connected to the water outlet on the side of a water pipe 93. A water-adding solenoid valve 10 is installed on the connecting pipe 11, and the water-adding solenoid valve 10 is electrically connected to the control module 3. The water-adding solenoid valve 10 and the connecting pipe... 11. When the electric heating tank 67 is low on water, water from the water pipe 93 can be introduced into the electric heating tank 67 to replenish the water. The electric heating tank 67 contains a heating tube 66, which is a metal tube with a double-layer spiral structure. One end of the heating tube 66 is connected to one end of the milk tube 63. The other end of the milk tube 63 extends through a through-hole on the side wall of the ambient temperature chamber 102 into the interior of the milk container 68. A milk pump 62 is installed on the milk tube 63, and the milk pump 62 is fixedly installed on the side wall of the ambient temperature chamber 102. The milk outlet on the side of the milk tube 63 connects to the low-temperature tube 65. One end of the low-temperature tube 65 is connected to one of the interfaces of the three-way connector 8. The other end of the heating tube 66 is connected to one end of the hot milk tube 61, and the other end of the hot milk tube 61 is connected to one of the interfaces of the three-way connector 8. Solenoid valves 64 are installed on both the milk tube 63 and the low-temperature tube 65. The milk pump 62, the solenoid valves 64, and the button 4 are electrically connected to the control module 3. The fresh milk can be refrigerated through the refrigerator compartment 101 to keep it fresh. The room-temperature milk (0-10℃) in the milk container 68 can be pumped through the milk tube 63 through the milk tube 64. The low-temperature tube 65 and the three-way connector 8 deliver milk to the milk outlet tube 7 to output room-temperature milk. When warm fresh milk (50-60℃) is required, room-temperature milk can be delivered to the heating tube 66 through the milk tube 63 via the milk pump 62. The water inside the heating tube 67 is heated by the electric heating tank 67, and the heat from the hot water is transferred to the metal heating tube 66. In conjunction with the double-layer spiral structure of the heating tube 66, the fresh milk inside the heating tube 66 is heated and then output, thus meeting the diverse needs of different consumers for the drinking temperature of fresh milk.
[0024] The working principle of this utility model is as follows: When room temperature milk is needed, press the corresponding button 4, the control module 3 controls the milk pump 62 to start, and at the same time closes the solenoid valve 64 on the milk tube 63 and opens the solenoid valve 64 on the room temperature tube 61. The milk pump 62 draws the fresh milk from the milk tank 68 through the milk tube 63. The fresh milk passes through the low temperature tube 65 and then enters the milk outlet tube 7 through the three-way connector 8. Finally, it flows out from the milk outlet of the milk outlet tube 7, thus outputting room temperature milk of 0-10℃.
[0025] When warm milk is needed, press the corresponding button 4. The control module 3 controls the milk pump 62 to start, closes the solenoid valve 64 on the low-temperature tube 65, and opens the solenoid valve 64 on the milk tube 63. The milk pump 62 delivers the fresh milk in the milk container 68 to the heating tube 66 through the milk tube 63. At the same time, the control module 3 controls the electric heating tank 67 to work and heat the water in the electric heating tank 67. The heat from the hot water is transferred to the fresh milk in the tube through the metal heating tube 66. The double-layer spiral structure of the heating tube 66 increases the heating area and improves the heating efficiency, so that the fresh milk is heated to 50-60℃. The heated fresh milk passes through the hot milk tube 61, enters the milk outlet tube 7 through the three-way connector 8, and finally flows out from the milk outlet of the milk outlet tube 7, thus realizing the output of warm fresh milk.
[0026] After the milk dispensing operation is completed, to ensure the hygiene of the equipment, the control module 3 controls the solenoid valve 64 on the milk pipe 63 near the milk tank 68 to close, and at the same time controls the milk pump 62 to work and open the water inlet solenoid valve 93. The milk pump 62 draws out the clean water in the clean water tank 92, and the clean water enters the milk pipe 63 through the water pipe 92 to rinse the milk dispensing components such as the milk pipe 63, the low temperature pipe 65, the hot milk pipe 61, the milk dispensing pipe 7, and the three-way connector 8. The rinsing wastewater flows into the wastewater tank 13 through the drain port at the bottom of the water tank 14 and the wastewater pipe 12, thereby cleaning the pipeline and preventing bacteria from growing in the pipeline after milk dispensing. During use, the water in the electric heating tank 67 will evaporate and decrease. During the cleaning process, the control module 3 controls the water filling solenoid valve 10 to open. During the cleaning process, some of the clean water in the water pipe 92 will be transported to the electric heating tank 67 through the connecting pipe 11, thereby replenishing the water in the electric heating tank.
[0027] In actual use, a communicating vessel is provided on the side of the electric heating tank 67. The water level inside the electric heating tank 67 can be directly judged through the communicating vessel, so that people can easily find out and add water in time.
[0028] The circuit connection involved in this utility model is a common method used by those skilled in the art, and technical inspiration can be obtained through a limited number of experiments. It belongs to the widely used prior art.
[0029] Components not described in detail in this article are existing technologies.
[0030] While the specific embodiments of this utility model have been described in detail above, this utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this utility model. Modifications or variations that do not involve creative labor are still within the protection scope of this utility model.
Claims
1. A fresh milk vending machine, characterized in that, The device includes a body (1), which is provided with a refrigerator compartment (101) and a normal temperature compartment (102). A door (2) that cooperates with the refrigerator compartment (101) and the normal temperature compartment (102) is rotatably installed on the side of the body (1). A control module (3) and a button (4) are fixedly installed on the top of the body (1). An L-shaped support plate (5) is fixedly installed at the bottom of the normal temperature compartment (102). A U-shaped milk outlet pipe (7) is fixedly installed on the top of the body (1). A three-way connector (8) is fixedly installed in the cavity at the upper end of the body (1). One of the interfaces on the three-way connector (8) is connected to the milk outlet pipe (7). A milk outlet mechanism (6) is installed inside the body (1). A cleaning mechanism (9) that cooperates with the milk outlet mechanism (6) is installed inside the normal temperature compartment (102). The milk dispensing mechanism (6) includes a hot milk tube (61), a milk pump (62), a milk tube (63), a solenoid valve (64), a low-temperature tube (65), a heating tube (66), an electric heating barrel (67), and a milk barrel (68). The milk barrel (68) is placed in a refrigerator compartment (101), and the electric heating barrel (67) is placed in a room temperature compartment (102). The electric heating barrel (67) contains a heating tube (66), which is a metal tube with a double-layer spiral structure. One end of the heating tube (66) is connected to one end of the milk tube (63), and the other end of the milk tube (63) extends through a through hole on the side wall of the room temperature compartment (102) into the milk barrel (68). The milk tube (63) is equipped with a milk pump (62), which is fixedly installed on the side wall of the ambient temperature room (102). The milk outlet on the side of the milk tube (63) is connected to one end of the low temperature tube (65), and the other end of the low temperature tube (65) is connected to one of the interfaces of the three-way connector (8). The other end of the heating tube (66) is connected to one end of the hot milk tube (61), and the other end of the hot milk tube (61) is connected to one of the interfaces of the three-way connector (8). Solenoid valves (64) are installed on both ends of the milk tube (63) and the low temperature tube (65). The milk pump (62), the solenoid valves (64) and the button (4) are electrically connected to the control module (3).
2. The fresh milk vending machine according to claim 1, characterized in that: The cleaning mechanism (9) includes a clean water tank (91), a water pipe (92), and a water inlet solenoid valve (93). The clean water tank (91) is placed at the bottom of the ambient temperature room (102). The water outlet on the side of the clean water tank (91) is connected to one end of the water pipe (92), and the other end of the water pipe (92) is connected to the water inlet on the side of the milk tube (63). The water inlet solenoid valve (93) is installed on the water pipe (92), and the water inlet solenoid valve (93) is electrically connected to the control module (3).
3. The fresh milk vending machine according to claim 1, characterized in that: The water inlet on the side of the electric heating barrel (67) is connected to one end of the connecting pipe (11), and the other end of the connecting pipe (11) is connected to the water outlet on the side of the water pipe (92). A water-adding solenoid valve (10) is installed on the connecting pipe (11), and the water-adding solenoid valve (10) is electrically connected to the control module (3).
4. A fresh milk vending machine according to claim 1, characterized in that: A sewage tank (13) is placed on top of the support plate (5), and the inlet of the sewage tank (13) is connected to one end of the sewage pipe (12).
5. A fresh milk vending machine according to claim 4, characterized in that: A water tank (14) is fixedly installed in the groove at the top of the machine body (1). A drain plate (15) is placed in the water tank (14). A teardrop-shaped through groove is opened on the drain plate (15). The through groove is located directly below the milk outlet on the milk outlet pipe (7). The sewage outlet at the bottom of the water tank (14) is connected to the other end of the sewage pipe (12).
6. A fresh milk vending machine according to claim 5, characterized in that: Four positioning posts (16) are fixedly installed at the bottom of the water tank (14). The upper ends of the four positioning posts (16) pass through the four through holes at the four corners of the bottom of the splash plate (17). The middle part of the splash plate (17) is raised. The splash plate (17) is located directly below the teardrop-shaped through groove on the drain plate (15).
7. A fresh milk vending machine according to claim 1, characterized in that: The four corners of the bottom of the body (1) are all fixedly installed with casters (18).