A foaming device with a viscous liquid foaming function

Abstract

The present application relates to a kind of foaming device with viscous liquid foaming function, it is characterized in that: including built-in cavity's foaming valve body, cavity is divided into upper chamber, lower chamber and the valve port being communicated upper chamber and lower chamber, one-way valve is arranged in lower chamber by spring support and keep to the trend of blocking the valve port, the circumferential wall of the lower chamber is opened with multiple liquid outlet ports being arranged adjacent to valve port;Foaming device cover, cover is set in foaming valve body, and with foaming valve body fixed, the inner wall of the foaming device cover and the outer circumferential wall of foaming valve body form annular secondary foaming cavity, liquid outlet port is communicated with the lower chamber and secondary foaming cavity, the bottom of the foaming device cover is equipped with the liquid outlet channel being communicated with secondary foaming cavity and outside, and the air inlet being communicated with secondary foaming cavity and outside is arranged on the foaming device cover, and the air inlet is located above the liquid outlet port.The present application can realize liquid oil twice foaming.Twice foaming can better improve the oil of coffee fat liquid, and coffee oil is more delicate.

Description

Technical Field

[0001] This invention relates to a foamer with a viscous liquid foaming function, which is suitable for use in coffee machines or similar beverage extraction equipment and is directly connected to the liquid outlet of the coffee machine to complete the liquid dispensing. Background Technology

[0002] A coffee machine is a type of beverage extraction device, typically consisting of a water tank, extraction mechanism, heating element, and water pump. In use, a coffee bag containing coffee grounds is placed in the extraction mechanism. Heated water is then pumped into the chamber containing the coffee bag by the water pump. The hot water flows through the coffee grounds in the bag, and the hot coffee flows from the machine's outlet into a cup. While there are many patents related to beverage brewing devices or coffee machines, their dispensing mechanisms are all similar: the beverage flows directly out through a single channel. When hot water passes through the beverage bag, water pressure is lost, resulting in low dispensing pressure. This leads to a less refined crema in the coffee, a thinner crema layer, and more coarse foam, resulting in a poor-tasting beverage (coffee) from this existing dispensing mechanism. Problems such as insufficient crema extraction and low crema content frequently occur, posing significant challenges to the production and optimization of espresso machines.

[0003] In response to the aforementioned situation, a Chinese utility model patent with patent number ZL201120154501.7 (publication number CN202060612U), entitled "Dispensing Mechanism of Beverage Brewing Apparatus," discloses such a dispensing mechanism for a beverage brewing apparatus. This mechanism includes a dispensing channel connecting the extraction space to the outside environment. The key feature is that a plug, held in place by a spring, is installed within the dispensing channel to maintain a tendency to seal the inlet. For the beverage to flow out of the dispensing channel, it must overcome the spring force, thus increasing the pressure of the beverage flowing out. This higher pressure compresses larger-diameter bubbles, forming bubbles with a diameter between 30 micrometers and 0.5 nanometers, completing one foaming cycle.

[0004] Although the aforementioned method improved the extraction of coffee oils, the amount of coffee oils was still too small, and the resulting coffee oil effect did not meet customer satisfaction. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a foamer with a viscous liquid foaming function that can achieve two-stage foaming of liquid oils, in view of the above-mentioned existing technology.

[0006] The technical solution adopted by the present invention to solve the above-mentioned technical problems is: a foamer with viscous liquid foaming function, characterized in that: it includes...

[0007] The foaming valve body has an internal cavity, which is divided into an upper chamber, a lower chamber, and a valve port connecting the upper and lower chambers. The lower chamber is equipped with a one-way valve that is supported by a spring and tends to block the valve port. Multiple liquid outlets are provided on the peripheral wall of the lower chamber, which are located near the valve port.

[0008] A foaming sleeve is fitted over and fixed to the foaming valve body. The inner wall of the foaming sleeve and the outer peripheral wall of the foaming valve body form an annular secondary foaming cavity. The liquid outlet connects the lower chamber and the secondary foaming cavity. The bottom of the foaming sleeve is provided with a liquid outlet channel connecting the secondary foaming cavity and the outside. The foaming sleeve is provided with an air inlet connecting the secondary foaming cavity and the outside, and the air inlet is located above the liquid outlet.

[0009] In a further improvement, a nut is threadedly connected to the bottom of the lower chamber, and the lower end of the spring rests on this nut. The nut allows for adjustment of the sealing pressure of the one-way valve, thus regulating the pressure of the grease after it passes through the valve port, enabling better mixing with air to complete the first foaming.

[0010] Preferably, the air inlet is located at the top of the foamer sleeve, and the outer wall of the foaming valve body has a concave, annular air intake channel. The upper part of the air intake channel on the outer wall of the foaming valve body also has a connecting port connecting the air inlet and the air intake channel. A ventilation gap is formed between the lower part of the air intake channel and the inner wall of the foamer sleeve. Air is distributed through the annular air intake channel, making the air entering the secondary foaming chamber more even.

[0011] Further improvements include two air inlets and two connecting ports. Air is drawn in from both sides and then distributed through an annular air intake channel, further ensuring a more even distribution of air entering the secondary foaming chamber.

[0012] To facilitate the fixing of the foamer sleeve to the foaming valve body, the outer wall of the foaming valve body is provided with two radially protruding mounting flanges. The lower chamber, valve port, air inlet channel, and connection port are all located below the mounting flanges. The outer wall of the foamer sleeve is provided with a radially protruding mounting portion. The mounting flange and the mounting portion are fixed together by screws. Of course, the fixing between the foamer sleeve and the foaming valve body is not limited to the aforementioned method; it can also be connected by a screw clamp.

[0013] Preferably, the bottom surface of the valve port is conical, and the top surface of the one-way valve is spherical. This structure allows the grease from the valve port to be sprayed downwards along the circumference and through the outlet, thus impacting the inner wall of the foamer sleeve with greater force and achieving better secondary foaming within the secondary foaming chamber.

[0014] Preferably, there are four liquid outlets arranged at intervals along the circumference.

[0015] Further improvements include the addition of multiple dividing ribs radiating outwards from the center at the bottom of the aforementioned liquid outlet channel. These dividing ribs act as a barrier to prevent the liquid from flowing out too quickly and splashing, while also breaking up large air bubbles.

[0016] Compared with existing technologies, the advantages of this invention are as follows: The crema extracted by the coffee machine enters the upper chamber, where a one-way valve, under the action of a spring, sets a pressure value for sealing. When the pressure of the coffee crema entering the upper chamber exceeds the set value, the one-way valve compresses the spring, forming a narrow injection port between the one-way valve and the valve opening. The coffee crema is then ejected through the outlet, where it mixes with air introduced through the air inlet under siphon action, achieving primary foaming. During ejection, the coffee crema forms small droplets that fully blend with the air, making the crema finer and creating foam. Then, the ejected coffee crema impacts the inner wall of the frother sleeve; this impact agitates the crema, allowing for more thorough contact with air and further foaming. This secondary foaming process is then achieved in the secondary foaming chamber. These two foaming processes better improve the crema of the coffee crema, resulting in a finer coffee crema. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of an embodiment of the present invention;

[0018] Figure 2 This is a cross-sectional view of an embodiment of the present invention;

[0019] Figure 3 for Figure 2 Sectional view along axis AA;

[0020] Figure 4 for Figure 3 Enlarged view of point B;

[0021] Figure 5 This is a reference diagram showing the usage state of an embodiment of the present invention;

[0022] Figure 6 This is an exploded perspective view of an embodiment of the present invention; Detailed Implementation

[0023] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0024] like Figures 1-6 The image shown is a preferred embodiment of the present invention.

[0025] A foaming device with viscous liquid foaming function, characterized in that: it includes...

[0026] The foaming valve body 1 has an internal cavity, which is divided into an upper chamber 1a, a lower chamber 1b, and a valve port 1c connecting the upper chamber 1a and the lower chamber 1b. The lower chamber 1b contains a one-way valve 3, supported by a spring 2 and tending to block the valve port 1c. The one-way valve 3 is made of a material with a smooth surface and a certain degree of hardness. The bottom surface of the valve port 1c is conical, and the top surface of the one-way valve 3 is spherical. A liquid outlet 11 is located near the valve port on the peripheral wall of the lower chamber 1b. In this embodiment, there are four liquid outlets 11, arranged at circumferential intervals. A nut 4 is threadedly connected to the bottom of the lower chamber 1b, and the lower end of the spring 2 rests on the nut 4.

[0027] A foaming sleeve 5 is fitted over the foaming valve body 1 and fixed to it. The inner wall of the foaming sleeve 5 and the outer peripheral wall of the foaming valve body 1 form an annular secondary foaming chamber 1d. The liquid outlet 11 connects the lower chamber 1b and the secondary foaming chamber 1d. The bottom of the foaming sleeve 5 is provided with a liquid outlet channel 51 that connects the secondary foaming chamber 1d and the outside. The foaming sleeve 5 is provided with an air inlet 52 that connects the secondary foaming chamber 1d and the outside. The air inlet 52 is located above the liquid outlet 11.

[0028] An air inlet 52 is located at the top of the foamer sleeve 5. The outer wall of the foaming valve body 1 has a concave and annular air inlet channel 12. The upper part of the outer wall of the foaming valve body 1 of the air inlet channel 12 also has a connecting port 13 that connects the air inlet 52 and the air inlet channel 12. The lower part of the air inlet channel 12 forms an air passage gap D between itself and the inner wall of the foamer sleeve 5. There are two air inlets 52 and two connecting ports 13.

[0029] The outer wall of the foaming valve body 1 is provided with two radially protruding mounting flanges 14. The lower chamber 1b, valve port 1c, air inlet channel 12 and connection port 13 are all located below the mounting flanges 14. The outer wall of the foamer sleeve 5 is provided with a radially protruding mounting part 53. The mounting flange 14 and the mounting part 53 are connected and fixed by screws.

[0030] The bottom of the liquid outlet channel 51 is provided with multiple dividing ribs 511 radiating from the center to the surrounding area.

[0031] like Figure 5 As shown, the coffee is directly connected to the dispensing end of the coffee machine to dispense the coffee. The crema extracted by the coffee machine enters the upper chamber 1a. The one-way valve 3, under the action of the spring 2, is set to a pressure value to seal the valve port 1c. When the pressure of the coffee crema entering the upper chamber 1a exceeds the set value, the one-way valve 3 compresses the spring 2, as shown. Figure 4As shown, a narrow injection port is formed between the one-way valve 3 and the valve port 1c. Coffee crema is ejected through the outlet 11 and, under siphon action, mixes with air introduced through the air inlet 52 to achieve primary foaming. During injection, the coffee crema forms small droplets that fully blend with the air, making the crema finer and creating foam. Then, the ejected coffee crema impacts the inner wall of the frother sleeve 5. This impact agitates the crema, allowing for more thorough contact with air and further foaming. This secondary foaming is achieved within the secondary foaming chamber 1d. The two foaming processes better improve the crema of the coffee crema, resulting in a finer coffee crema.

[0032] It should be noted that in the description of this embodiment, the terms "front," "rear," "left," "right," "inner," "outer," "upper," and "lower," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are merely for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. The terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

Claims

1. A foamer with the function of foaming viscous liquids, characterized in that: include The foaming valve body (1) with an internal cavity is divided into an upper chamber (1a), a lower chamber (1b) and a valve port (1c) connecting the upper chamber (1a) and the lower chamber (1b). The lower chamber (1b) is provided with a one-way valve (3) supported by a spring (2) and tending to block the valve port (1c). The peripheral wall of the lower chamber (1b) has multiple liquid outlets (11) located near the valve port. A foaming sleeve (5) is fitted over the foaming valve body (1) and fixed to the foaming valve body (1). The inner wall of the foaming sleeve (5) and the outer peripheral wall of the foaming valve body (1) form an annular secondary foaming cavity (1d). The liquid outlet (11) connects the lower chamber (1b) and the secondary foaming cavity (1d). The bottom of the foaming sleeve (5) is provided with a liquid outlet channel (51) connecting the secondary foaming cavity (1d) and the outside. The foaming sleeve (5) is provided with an air inlet (52) connecting the secondary foaming cavity (1d) and the outside. The air inlet (52) is located above the liquid outlet (11). The air inlet (52) is located at the top of the foamer sleeve (5). The outer wall of the foaming valve body (1) is provided with an inwardly recessed and annular air inlet channel (12). The upper part of the outer wall of the foaming valve body (1) is also provided with a connecting port (13) connecting the air inlet (52) and the air inlet channel (12). The lower part of the air inlet channel (12) forms an air passage gap (D) with the inner wall of the foamer sleeve (5).

2. The foamer with viscous liquid foaming function according to claim 1, characterized in that: The bottom of the lower chamber (1b) is threaded with a nut (4), and the lower end of the spring (2) rests on the nut (4).

3. The foamer with viscous liquid foaming function according to claim 1, characterized in that: There are two air inlets (52) and two connectors (13).

4. The foamer with viscous liquid foaming function according to claim 1, characterized in that: The outer wall of the foaming valve body (1) is provided with two radially protruding mounting flanges (14). The lower chamber (1b), valve port (1c), air inlet channel (12) and connection port (13) are all located below the mounting flanges (14). The outer wall of the foamer sleeve (5) is provided with a radially protruding mounting part (53). The mounting flange (14) and the mounting part (53) are fixed together by screws.

5. The foamer with viscous liquid foaming function according to claim 1, characterized in that: The bottom surface of the valve port (1c) is conical, and the top surface of the one-way valve (3) is spherical.

6. The foamer with viscous liquid foaming function according to claim 1, characterized in that: There are four liquid outlets (11), which are arranged at intervals along the circumference.

7. The foamer with viscous liquid foaming function according to claim 1, characterized in that: The bottom of the liquid outlet channel (51) is provided with multiple dividing ribs (511) radiating from the center to the surrounding area.

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