Coffee machine with milk foaming device

Abstract

The utility model discloses a coffee machine with a milk foam device, which comprises a main machine and a steam device arranged in the main machine, a milk box is further arranged beside the main machine, the milk foam device is arranged to be matched with the milk box to make milk foam, and the milk foam device comprises a steam connector connected with the steam device, a foam maker and a milk outlet connector provided with a milk foam pipe. The steam connector, the foam maker and the milk outlet connector are in butt joint one by one to form a foaming channel, a switching valve is arranged on the foam maker and provided with a milk branch connector and a water branch connector, the switching valve can control the milk branch connector or the water branch connector to be communicated with an inner cavity of the foam maker, and steam output by the steam device is led to the milk foaming pipe through the foam maker and the milk outlet connector. And negative pressure is generated in the foam maker, milk is selectively sucked into the foam maker by the switching valve to be mixed with air to form milk foams, and the milk foams are discharged through the milk foam pipe, or clean water is selectively sucked to wash the interior of the foam maker and the foaming channel and is discharged from the milk foam pipe, so that caking caused by long-time residual milk in the foaming channel is avoided.

Description

Technical Field

[0001] This utility model belongs to the field of coffee machines, specifically a coffee machine with a milk frothing device. Background Technology

[0002] Coffee machines are common coffee-making devices that use a system to generate high-temperature steam. Milk is heated and / or foamed using this steam to prepare hot beverages such as cappuccinos or hot milk. Therefore, coffee machines are equipped with milk tanks to store milk for later use. However, in existing coffee machines, if the milk is not used up before the milk frothing tubing is cleaned, milk can solidify inside the tubing, becoming difficult to remove and posing a hygiene risk. Summary of the Invention

[0003] In order to overcome the shortcomings of the prior art, this utility model provides a coffee machine with a milk frothing device.

[0004] The technical solution adopted by this utility model to solve its technical problem is:

[0005] A coffee machine with a milk frothing device includes a main unit and a steam unit arranged inside the main unit. A steam base connected to the steam unit is arranged on the front side of the main unit. A coffee-making workstation is formed below the steam base, and a coffee portafilter is detachably installed on the steam base. A milk tank is also arranged next to the main unit, and a milk frothing device is provided to work with the milk tank to make milk froth. The milk frothing device includes a steam connector connected to the steam unit, a frother, and a milk outlet connector with a milk frothing tube. The steam connector, frother, and milk outlet connector are connected one by one to form a frothing channel. The frother is provided with a switching valve, which has a milk branch interface and a water branch interface. The switching valve can control the milk branch interface or the water branch interface to connect to the inner cavity of the frother. The steam output from the steam unit passes through the frother and the milk outlet connector to the milk frothing tube, and creates negative pressure in the frother to draw in milk or clean water from the milk branch interface or the water branch interface into the frothing channel and discharge it from the milk frothing tube.

[0006] The switching valve is a manual valve.

[0007] The switching valve is equipped with an externally exposed wrench.

[0008] The switching valve is an electric valve.

[0009] The switching valve is equipped with a motor that drives the switching action.

[0010] The switching valve includes a valve seat and a rotating valve core. The valve seat has a milk branch interface and a water branch interface. The frother has a corresponding branch inlet. The rotating valve core has a docking channel. Rotating the valve core causes the docking channel to connect the branch inlet and the milk branch interface or connect the branch inlet and the water branch interface.

[0011] The milk branch interface and water branch interface are respectively connected to conduits for milk and cleaning water.

[0012] The milk box is divided into a milk chamber and a cleaning water chamber. The conduits that connect to the milk branch interface and the water branch interface extend into the milk box and enter the milk chamber and the cleaning water chamber respectively.

[0013] The coffee machine is also equipped with a water tank that provides water to the steam device. The milk branch interface is connected to the milk tank, and the water branch interface is connected to the water tank.

[0014] The main unit is also equipped with a wastewater box located below the steam seat and the milk frothing tube.

[0015] The beneficial effects of this utility model are: the milk frothing device of this utility model is equipped with a switching valve, which can choose to draw milk into the frother to mix with air to form milk foam and then discharge it through the milk frothing tube, or choose to draw in clean water to rinse the inside of the frother and the frothing channel and discharge it through the milk frothing tube, so as to avoid milk remaining in the frothing channel for a long time, forming clumps and causing hygiene hazards. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a breakdown diagram of the present invention;

[0019] Figure 3 This is a disassembled schematic diagram of the main unit of this utility model;

[0020] Figure 4 This is a disassembled schematic diagram of the milk frothing device of this utility model;

[0021] Figure 5 This is a disassembled schematic diagram of the internal structure of the milk frothing device of this utility model;

[0022] Figure 6 yes Figure 5 A diagram from another perspective. Detailed Implementation

[0023] Reference Figures 1 to 6A coffee machine includes a main unit 100 and a steam device 101 arranged inside the main unit 100. A steam base 102 communicating with the steam device 101 is arranged on the front side of the main unit 100. A coffee-making operating station 110 is formed below the steam base 102. A coffee handle 103 is detachably installed on the steam base 102. Coffee powder is placed inside the coffee handle 103 and installed on the steam base 102. The steam device 101 outputs high-temperature steam to the steam base 102. The steam base 102 inputs the high-temperature steam into the coffee handle 103 to permeate the coffee powder and extract coffee liquid.

[0024] Next to the main unit 100, a milk tank 210 is also arranged, and a milk frothing device 200 is provided to work with the milk tank 210 to make milk froth. The milk frothing device 200 includes a steam connector 201 connected to the steam device 101, a frother 202, a milk outlet connector 203 with a milk frothing tube 204, a support base 205 for fixing the above components, and an outer shell 206 covering the outside. The steam connector 201, frother 202, and milk outlet connector 203 are connected one by one to form a frothing channel. The frother 202 is provided with a switching valve 220, which has a milk branch interface 221 and a water branch interface 222. The switching valve 220 can control the milk branch interface 221 or the water branch interface 222. 2. The steam device 101 outputs steam through the frother 202 and the milk outlet 203 to the milk frothing tube 204, creating negative pressure inside the frother 202 to draw in milk from the milk branch interface 221 or clean water from the water branch interface 222. When the switching valve 220 connects the milk branch interface 221 to the frother 202, the milk is mixed with air inside the frother 202 to form milk foam, which is then discharged through the milk frothing tube 204. When the switching valve 220 connects the water branch interface 222 to the frother 202, clean water is drawn in to rinse the inside of the frother 202 and the frothing channel, and then discharged through the milk frothing tube 204, preventing milk from remaining in the frothing channel for a long time and forming clumps that could cause hygiene hazards.

[0025] As a preferred embodiment, the switching valve 220 includes a valve seat 223 and a rotating valve core 224. The valve seat 223 has a milk branch interface 221 and a water branch interface 222. The foamer 202 is provided with a corresponding branch inlet 2021. The rotating valve core 224 has a docking channel 2241. Rotating the rotating valve core 224 causes the docking channel 2241 to connect the branch inlet 2021 and the milk branch interface 221 or to connect the branch inlet 2021 and the water branch interface 222, thereby achieving the purpose of switching the connection between milk and clean water.

[0026] The switching valve 220 can be divided into manual valve and electric valve according to the driving method. When the switching valve 220 is a manual valve, it is equipped with an externally protruding wrench 226, which is connected to the rotating valve core 224. The user can pull the trigger to control the rotation of the valve core 224 to achieve the switching of the valve 220, allowing the customer to independently control when to clean the milk frothing device 200. When the switching valve 220 is an electric valve (not shown in the figure of this embodiment), it is equipped with a motor to drive the switching action. The motor drives the rotating valve core 224 to achieve the switching action. The merchant can control the switching valve 220 to automatically perform the cleaning work through software programming.

[0027] Preferably, the milk branch interface 221 and the water branch interface 222 are respectively connected to conduits 225 for connecting milk and cleaning water. Milk is generally stored in the milk tank 210, so the conduit 225 connected to the milk branch interface 221 extends into the milk tank 210 to retrieve milk. The cleaning water can be stored in the water tank 300, the milk tank 210, or even an additional container. In a preferred embodiment, the milk tank 210 is divided into a milk chamber 211 and a cleaning water chamber 212, simultaneously storing both milk and cleaning water. The conduits 225 connected to the milk branch interface 221 and the water branch interface 222 both extend into the milk tank 210 and respectively into the milk chamber 211 and the cleaning water chamber 212, allowing milk and cleaning water to be retrieved from the milk tank 210. In another embodiment, the water tank 300 is a water storage container arranged on the coffee machine to provide water to the steam device 101, and the conduit 225 connected to the water branch interface 222 can be connected to the water tank 300 to draw clean water from the water tank 300.

[0028] Preferably, the main unit 100 is also provided with a wastewater box 400 located below the steam seat 102 and the milk frothing tube 204. The wastewater box 400 collects the condensate dripping from the steam seat 102, the coffee liquid remaining on the coffee portafilter 103 during coffee making, and the wastewater discharged from the milk frothing tube 204 after cleaning.

Claims

1. A coffee machine with a milk frothing device, comprising a main unit (100) and a steam device (101) arranged inside the main unit (100), wherein a steam base (102) communicating with the steam device (101) is arranged on the front side of the main unit (100), a coffee-making operating station (110) is formed below the steam base (102), and a coffee handle (103) is detachably installed on the steam base (102), and a milk tank (210) is arranged next to the main unit (100) and a milk frothing device (200) is provided to cooperate with the milk tank (210) to make milk froth, characterized in that: The milk frothing device (200) includes a steam connector (201) connected to a steam device (101), a frother (202), and a milk outlet connector (203) with a milk frothing tube (204). The steam connector (201), frother (202), and milk outlet connector (203) are connected one by one to form a frothing channel. The frother (202) is equipped with a switching valve (220), which has a milk branch interface (221) and a water branch interface (224). 22) The switching valve (220) can control the milk branch interface (221) or water branch interface (222) to connect to the inner cavity of the frother (202). The steam device (101) outputs steam through the frother (202) and the milk outlet connector (203) to the milk frothing tube (204), and causes negative pressure to be generated in the frother (202) to draw in milk or clean water from the milk branch interface (221) or water branch interface (222) into the frothing channel and discharge it from the milk frothing tube (204).

2. The coffee machine according to claim 1, characterized in that: The switching valve (220) is a manual valve.

3. The coffee machine according to claim 2, characterized in that: The switching valve (220) is equipped with an externally exposed wrench (226).

4. The coffee machine according to claim 1, characterized in that: The switching valve (220) is an electric valve.

5. The coffee machine according to claim 4, characterized in that: The switching valve (220) is equipped with a motor that drives the switching action.

6. The coffee machine according to any one of claims 1 to 5, characterized in that: The switching valve (220) includes a valve seat (223) and a rotating valve core (224). The valve seat (223) has a milk branch interface (221) and a water branch interface (222). The frother (202) is provided with a corresponding branch inlet (2021). The rotating valve core (224) has a docking channel (2241). Rotating the rotating valve core (224) causes the docking channel (2241) to connect the branch inlet (2021) and the milk branch interface (221) or to connect the branch inlet (2021) and the water branch interface (222).

7. The coffee machine according to claim 1, characterized in that: The milk branch interface (221) and water branch interface (222) are respectively connected to conduits (225) for milk and cleaning water.

8. The coffee machine according to claim 1 or 7, characterized in that: The milk box (210) is divided into a milk chamber (211) and a cleaning water chamber (212). The conduits (225) that connect to the milk branch interface (221) and the water branch interface (222) extend into the milk box (210) and enter the milk chamber (211) and the cleaning water chamber (212) respectively.

9. The coffee machine according to claim 1 or 7, characterized in that: The coffee machine is also equipped with a water tank (300) that provides water to the steam unit (101), the milk branch interface (221) is connected to the milk tank (210), and the water branch interface (222) is connected to the water tank (300).

10. The coffee machine according to claim 1, characterized in that: The main unit (100) is also equipped with a wastewater box (400) located below the steam seat (102) and the milk frothing tube (204).

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