Milk foam machine

Abstract

The utility model belongs to the field of vending machines, and discloses a milk foam machine which comprises a machine body, a refrigerating chamber, a refrigerating system, a milk foam making system and a discharging mechanism are arranged on the machine body, a milk box is arranged in the refrigerating chamber, the refrigerating system refrigerates the refrigerating chamber, and the milk foam making system comprises a mixing pump, a milk valve and an air valve. The air valve controls air to enter the mixing pump, the milk valve controls milk in the milk box to enter the mixing pump, and the mixing pump sucks and mixes the milk and the air and pumps the milk and the air to the discharging mechanism to complete discharging. The milk box is arranged in the machine body, the refrigerating chamber and the refrigerating system are arranged for refrigerating milk, and the problems that an external milk box is bloated in structure and large in occupied space are solved.

Description

Technical Field

[0001] The utility model relates to the field of automatic vending machines, in particular to a milk foam machine. Background Art

[0002] Usually, when drinking coffee, people add delicate milk foam to make it taste better. A milk frother is a machine used to make milk foam. The milk frother in the prior art usually needs to be equipped with an external milk tank, which is not compact enough and occupies a large space. In addition, the piping system of the existing milk frother is generally equipped with a water cleaning structure, but moisture will remain in the pipe, posing a health hazard. Utility Model Content

[0003] The purpose of the present invention is to provide a milk frother to solve the problems raised in the above background technology.

[0004] To achieve the above objectives, the present invention provides a milk foam machine with the following technical solutions:

[0005] A milk frothing machine comprises a machine body, on which a refrigeration chamber, a refrigeration system, a milk frothing system and a discharging mechanism are arranged. A milk box is arranged in the refrigeration chamber, and the refrigeration system cools the refrigeration chamber. The milk frothing system comprises a mixing pump, a milk valve and an air valve. The air valve controls the entry of air into the mixing pump, and the milk valve controls the entry of milk in the milk box into the mixing pump. The mixing pump sucks and mixes the milk and air, and pumps the milk and air to the discharging mechanism to complete the discharging.

[0006] Furthermore, the refrigeration system includes a compressor, a condenser, an evaporator and a fan that are connected together.

[0007] Furthermore, the evaporator is located in the refrigeration chamber, and the fan draws air toward the evaporator.

[0008] Furthermore, a constant temperature chamber is provided on the machine body, and the compressor, condenser and part or all of the structure of the milk foam making system are located in the constant temperature chamber.

[0009] Furthermore, the machine body is also provided with a milk foam cleaning system, and the milk foam cleaning system cleans the milk foam making system by taking in water.

[0010] Furthermore, the milk froth cleaning system includes a water tank assembly, a first water pump and a flow meter. The first water pump pumps water in the water tank assembly to the milk froth making system, and the flow meter detects the amount of water supplied to the milk froth making system.

[0011] Furthermore, the machine body is further provided with an air blowing system, and the air blowing system blows air to the milk frothing making system to discharge the residual moisture in the milk frothing making system.

[0012] Furthermore, the blowing system includes an air pump.

[0013] Furthermore, the milk froth making system further includes a heater, which heats the milk froth pumped out by the mixing pump.

[0014] Furthermore, the milk froth making system further comprises a first three-way joint, the air valve and the milk valve are respectively connected to two inlets of the first three-way joint through pipelines, and the outlet of the first three-way joint is connected to the mixing pump.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1) The utility model integrates the milk box into the machine body and is equipped with a refrigeration chamber and a refrigeration system to refrigerate the milk, thus solving the problem of the external milk box being bulky and occupying a large space;

[0017] 2) The utility model not only cleans the milk foam remaining in the pipeline through the milk foam cleaning system, but also removes the residual moisture in the pipeline through the blowing system, so that the pipeline is kept clean and the hygiene and taste of the food are guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a partial structural diagram of the utility model.

[0019] Figure 2 This is a schematic diagram of the decomposition structure of the utility model.

[0020] Figure 3 This is a schematic diagram of the connection structure of the milk foam making system, milk foam cleaning system and blowing system in the utility model.

[0021] In the figure: machine body 1, refrigeration chamber 2, normal temperature chamber 3, discharge mechanism 4, compressor 5, condenser 6, evaporator 7, fan 8, milk tank 9, mixing pump 10, milk valve 11, air valve 12, water tank assembly 13, first water pump 14, flow meter 15, air pump 16, heater 17, first three-way joint 18, water bucket 19, first one-way valve 20, second water pump 21, second three-way joint 22, drain joint 23, second one-way valve 24, third three-way joint 25. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] See also Figure 1-Figure 3A milk frothing machine includes a body 1, on which a refrigerating chamber 2, a refrigeration system, a milk frothing making system and a discharging mechanism 4 are arranged. A milk box 9 is arranged in the refrigerating chamber 2, and the refrigerating system cools the refrigerating chamber 2. The milk frothing making system includes a mixing pump 10, a milk valve 11 and an air valve 12. The air valve 12 controls the air to enter the mixing pump 10, and the milk valve 11 controls the milk in the milk box 9 to enter the mixing pump 10. The mixing pump 10 sucks and mixes the milk and air and pumps them to the discharging mechanism 4 to complete the discharging.

[0024] Continue reading Figure 1 and Figure 2 In one embodiment of the present invention, the refrigeration system includes a compressor 5, a condenser 6, an evaporator 7 and a fan 8 that are connected together. The evaporator 7 and the fan 8 are located in the refrigeration chamber 2, and the fan 8 draws air toward the evaporator 7. The connection relationship between the compressor 5, the condenser 6, the evaporator 7 and the fan 8 and their working principles are well-known technologies in the refrigeration field and will not be elaborated on.

[0025] Continue reading Figure 1 and Figure 2 In one embodiment of the present invention, the milk frothing system further includes a heater 17, a first three-way joint 18, and a first one-way valve 20. The heater 17 is connected to the mixing pump 10 and the discharging mechanism 4 through pipelines, respectively. The heater 17 heats the milk froth pumped by the mixing pump 10. The air valve 12 is connected to the first one-way valve 20. The first one-way valve 20 and the milk valve 11 are respectively connected to the two inlets of the first three-way joint 18 through pipelines. The outlet of the first three-way joint 18 is connected to the mixing pump 10. The first one-way valve 20 prevents liquid from flowing out.

[0026] Continue reading Figure 1 and Figure 2 In one embodiment of the present invention, a constant temperature chamber 3 is further provided on the machine body 1 , and the constant temperature chamber 3 is located below the refrigeration chamber 2 . The compressor 5 , the condenser 6 and part of the structure of the milk foam making system are located in the constant temperature chamber 3 .

[0027] Continue reading Figure 2 and Figure 3 In one embodiment of the present invention, the body 1 is further provided with a milk frothing cleaning system, which cleans the milk frothing making system by taking in water. The milk frothing cleaning system includes a water tank assembly 13, a first water pump 14 and a flow meter 15. The first water pump 14 pumps water in the water tank assembly 13 to the milk frothing making system, and the flow meter 15 detects the amount of water supplied to the milk frothing making system.

[0028] Continue reading Figure 2 and Figure 3In one embodiment of the present invention, the milk froth washing system further includes a third three-way connector 25, a drain connector 23, a second water pump 21, a second one-way valve 24, and a water bucket 19. The first water pump 14, the flow meter 15, the third three-way connector 25, the water tank assembly 13, the second water pump 21, the second one-way valve 24, and the water bucket 19 are sequentially connected via pipes. The outlet of the third three-way connector 25 is connected to the drain connector 23. A second one-way valve 24 is also provided in the circuit between the water tank assembly 13 and the water bucket 19. The water level in the water tank assembly 13 is detected by a liquid level gauge built into the water tank assembly 13. When the water level is insufficient, the water tank assembly 13 pumps water from the water bucket 19 via the second water pump 21. When the water level is low, the water bucket 19 needs to be replaced.

[0029] Continue reading Figure 2 and Figure 3 In one embodiment of the present invention, the body 1 is further provided with an air blowing system, which blows air into the milk frothing system to remove residual moisture in the milk frothing system. The air blowing system includes an air pump 16 and a second three-way joint 22. The air pump 16 and the first water pump 14 are respectively connected to the two inlets of the second three-way joint 22, and the outlet of the second three-way joint 22 is connected to the milk valve 11.

[0030] The fan 8 is preferably a cross-flow fan; the mixing pump 10 is preferably a gear pump; the milk valve 11 is preferably a two-position three-way plate-type solenoid valve; the air valve 12 is preferably a high-frequency valve; the first water pump 14, the second water pump 21 and the air pump are preferably diaphragm pumps; and the heater 17 is a heating plate.

[0031] The workflow of this utility model:

[0032] The first step is to make milk froth: the mixing pump 10 is in operation, the milk material inlet of the milk valve 11 is opened, the other inlet is closed, and the air valve 12 is opened. The milk material enters the first three-way joint 18 from the milk tank 9 through the milk valve 11. The air enters the first three-way joint 18 through the air valve 12 and the first one-way valve 20, and is combined with the milk material to enter the mixing pump 10. The milk material and air are mixed in the mixing pump 10 to generate milk froth. The generated milk froth is pumped by the mixing pump 10 to the heater 17 and then discharged from the discharge mechanism 4. If hot milk froth is required, the heater 17 is turned on to heat the milk froth. If hot milk froth is not required, the milk froth only passes through the heater 17 without being heated.

[0033] The second step is cleaning the pipeline: the milk inlet of the milk valve 11 is closed, the other inlet is opened, the air valve 12 is closed, and the mixing pump 10 continues to operate. Then, the first water pump 14 pumps water from the water tank assembly 13, passes through the second three-way connector 22, the milk valve 11, the first three-way connector 18, the mixing pump 10, and the heater 17, and finally comes out of the discharge mechanism 4 together with the milk foam and enters the coffee cup. The water will flush away the residual milk foam in the pipeline and clean the pipeline. This water is clean and will not affect the quality of the coffee.

[0034] Step 3: Removing moisture: After the milk foam is cleaned, the mixing pump 10 continues to work, and the air pump 16 pumps air through the second three-way connector 22, the milk valve 11, the first three-way connector 18, the mixing pump 10, and the heater 17 in sequence, and is finally discharged from the discharge mechanism 4. The air entering the pipeline blows away the residual moisture in the pipeline.

[0035] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A milk frother, comprising a body (1), characterized in that: The machine body (1) is provided with a refrigeration chamber (2), a refrigeration system, a milk frothing system and a discharging mechanism (4); a milk box (9) is provided in the refrigeration chamber (2); the refrigeration system cools the refrigeration chamber (2); the milk frothing system comprises a mixing pump (10), a milk valve (11), and an air valve (12); the air valve (12) controls air to enter the mixing pump (10); the milk valve (11) controls milk in the milk box (9) to enter the mixing pump (10); the mixing pump (10) sucks and mixes the milk and air and pumps the milk and air to the discharging mechanism (4) to complete the discharging.

2. The milk frother according to claim 1, characterized in that: The refrigeration system comprises a compressor (5), a condenser (6), an evaporator (7) and a fan (8) that are connected together.

3. The milk frother according to claim 2, characterized in that: The evaporator (7) is located in the refrigeration chamber (2), and the fan (8) draws air toward the evaporator (7).

4. The milk frother according to claim 2, characterized in that: A constant temperature chamber (3) is also provided on the machine body (1), and part or all of the structure of the compressor (5), condenser (6) and milk froth making system are located in the constant temperature chamber (3).

5. The milk frother according to claim 1, characterized in that: The machine body (1) is also provided with a milk foam cleaning system, and the milk foam cleaning system cleans the milk foam making system by feeding water.

6. The milk frother according to claim 5, characterized in that: The milk froth cleaning system comprises a water tank assembly (13), a first water pump (14) and a flow meter (15), wherein the first water pump (14) pumps water in the water tank assembly (13) to the milk froth making system, and the flow meter (15) detects the amount of water delivered to the milk froth making system.

7. The milk frother according to claim 5, characterized in that: The machine body (1) is further provided with an air blowing system, which blows air to the milk froth making system to remove residual moisture in the milk froth making system.

8. The milk frother according to claim 7, characterized in that: The blowing system comprises an air pump (16).

9. The milk frother according to claim 1, characterized in that: The milk foam making system further comprises a heater (17), and the heater (17) heats the milk foam pumped out by the mixing pump (10).

10. The milk frother according to claim 1, characterized in that: The milk frothing system further comprises a first three-way connector (18), the air valve (12) and the milk valve (11) are respectively connected to the two inlets of the first three-way connector (18) through pipelines, and the outlet of the first three-way connector (18) is connected to the mixing pump (10).

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