Portable coffee machine capable of stably extracting

Abstract

The portable coffee machine capable of stably extracting comprises a main body and a powder cup arranged below the main body, the main body comprises a water storage cavity, a pressure cavity communicated with the water storage cavity and a piston assembly at least partially contained in the pressure cavity, and the powder cup comprises a powder cavity communicated with the water storage cavity and an adjusting valve arranged at the bottom of the powder cavity. The adjusting valve comprises a valve body and a knob located at the bottom of the valve body, and the pressure in the powder cavity can be adjusted and the flow of coffee liquid can be controlled by rotating the knob. The pressure and the flow are controlled through the adjusting valve, coffee powder can be fully soaked and extracted, and therefore the extraction effect of the indoor unit is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of portable coffee machines, and in particular to a portable coffee machine capable of stable extraction. Background Art

[0002] When extracting coffee, the flow rate and flow control of water play a vital role in the quality of coffee.

[0003] A common portable coffee machine is a pump-type coffee machine, which performs pump-type brewing by manually pushing and pulling the piston rod, that is, extracting the coffee powder by pumping out water, similar to a pressurized flush. However, due to size and structural limitations, it is not compatible with the water control components of multiple coffee machines, and cannot achieve uniform and stable immersion extraction. Different extraction strengths will result in different extraction tastes, and therefore cannot achieve the same taste as an indoor machine. Summary of the Invention

[0004] Based on this, it is necessary to provide a portable coffee machine that can stably extract coffee to ensure that the coffee powder is fully soaked and extracted, thereby achieving the extraction effect of an indoor unit.

[0005] The purpose and efficacy of the portable coffee machine capable of stable extraction of the present invention are achieved by the following specific technical means:

[0006] A portable coffee machine capable of stable extraction comprises a main body and a powder cup disposed below the main body, the main body comprising a water storage chamber and a pressure chamber connected to the water storage chamber, and a piston assembly at least partially accommodated in the pressure chamber, the powder cup comprising a powder chamber connected to the water storage chamber and a regulating valve disposed at the bottom of the powder chamber, the regulating valve comprising a valve body and a knob located at the bottom of the valve body, and the pressure in the powder chamber and the flow rate of the coffee liquid can be adjusted by rotating the knob.

[0007] Preferably, the piston assembly includes a pressing handle and an air inlet valve arranged in the pressing handle, the air inlet valve connects the pressure chamber with the air outside the coffee machine, and the water storage chamber is provided with an air outlet valve, so that the water storage chamber and the pressure chamber are connected in one direction. When the air pressure in the pressure chamber increases, the water in the water storage chamber can be pressed toward the powder cup.

[0008] Preferably, the water storage chamber is located above the pressure chamber, and the air outlet valve is arranged at the upper part of the water storage chamber.

[0009] Preferably, it further comprises an upper cover detachably connected to the main body, and the upper cover is arranged above the water storage chamber.

[0010] Preferably, the device further comprises a coffee cup detachably connected to the main body, and the coffee cup cover is arranged on the powder cup.

[0011] Preferably, the powder cup also includes a sealing ring arranged above the powder chamber, and a sealing gasket, a sealing gasket pressure plate and a water diversion plate arranged in sequence from top to bottom in the sealing ring, the sealing gasket is provided with a first through hole, the water diversion plate is provided with multiple second through holes, and the first through hole is connected to the second through hole.

[0012] Preferably, the powder cup further comprises a filter screen bracket arranged below the powder chamber and a filter screen mounted on the filter screen bracket, and the filter screen is located above the regulating valve.

[0013] The portable coffee machine with stable extraction provided by the present invention includes a main body and a powder cup disposed below the main body. The main body includes a water storage chamber, a pressure chamber connected to the water storage chamber, and a piston assembly at least partially housed in the pressure chamber. The powder cup includes a powder chamber connected to the water storage chamber and a regulating valve disposed at the bottom of the powder chamber. The regulating valve includes a valve body and a knob located at the bottom of the valve body. Rotating the knob adjusts the pressure in the powder chamber and controls the flow rate of the coffee liquid. By controlling the pressure and flow rate using the regulating valve, the coffee powder is fully immersed and extracted, thereby achieving the same extraction effect as an indoor unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0015] Figure 1 A schematic diagram of a portable coffee machine capable of stable extraction provided by the present invention; and

[0016] Figure 2 A cross-sectional view of a portable coffee machine capable of stable extraction provided by the present invention. DETAILED DESCRIPTION

[0017] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0018] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate positions or locations based on those shown in the accompanying drawings. These terms are intended solely to facilitate and simplify the description of the present invention and are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not intended to indicate or imply relative importance.

[0019] like Figure 1 and Figure 2 As shown, the present invention provides a portable coffee machine 100 capable of stable coffee extraction. The machine comprises a main body 1 and a powder cup 2 disposed below the main body 1. The main body 1 includes a water storage chamber 11, a pressure chamber 12 communicating with the water storage chamber 11, and a piston assembly 13 at least partially housed within the pressure chamber 12. The powder cup 2 includes a powder chamber 21 communicating with the water storage chamber 11 and a regulating valve 22 disposed at the bottom of the powder chamber. The regulating valve 22 includes a valve body 221 and a knob 222 located at the bottom of the valve body 221. Rotating the knob 222 adjusts the pressure within the powder chamber 21 and controls the flow of the coffee liquid. The coffee machine 100 also includes a top cover 3 detachably connected to the main body 1 and a coffee cup 4 detachably connected to the main body 1. The top cover 3 is disposed above the water storage chamber 11, and the coffee cup 4 is disposed over the powder cup 2.

[0020] Specifically, the piston assembly 13 includes a pressure handle 131 and an air inlet valve 132 disposed within the pressure handle 131. The air inlet valve 132 connects the pressure chamber 12 to the air outside the coffee machine 100. The water storage chamber 11 is provided with an air outlet valve 111. The air outlet valve 111 functions as a check valve, ensuring one-way communication between the water storage chamber 11 and the pressure chamber 12. When the air pressure in the pressure chamber 12 increases, the water in the water storage chamber 11 is pressed toward the coffee cup 2.

[0021] In this embodiment, the water storage chamber 11 is located above the pressure chamber 12 , and the air outlet valve 111 is disposed at the upper portion of the water storage chamber 11 .

[0022] Furthermore, the powder cup 2 also includes a sealing ring 23 arranged above the powder chamber 21, and a sealing gasket 24, a sealing gasket pressure plate 25 and a water dividing plate 26 arranged in sequence from top to bottom in the sealing ring 23. The sealing gasket 24 is provided with a first through hole 240, and the water dividing plate 26 is provided with multiple second through holes 260. The first through hole 240 is connected to the second through hole 260.

[0023] Preferably, the powder cup 2 further includes a filter bracket 27 disposed below the powder chamber 21 and a filter 28 mounted on the filter bracket 27 . The filter 28 is located above the regulating valve 22 .

[0024] The portable coffee machine with stable extraction provided by the present invention includes a main body and a powder cup disposed below the main body. The main body includes a water storage chamber, a pressure chamber connected to the water storage chamber, and a piston assembly at least partially housed in the pressure chamber. The powder cup includes a powder chamber connected to the water storage chamber and a regulating valve disposed at the bottom of the powder chamber. The regulating valve includes a valve body and a knob located at the bottom of the valve body. Rotating the knob adjusts the pressure in the powder chamber and controls the flow rate of the coffee liquid. By controlling the pressure and flow rate using the regulating valve, the coffee powder is fully immersed and extracted, thereby achieving the same extraction effect as an indoor unit.

[0025] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A portable coffee machine capable of stable extraction, comprising a main body and a powder cup disposed below the main body, the main body comprising a water storage chamber and a pressure chamber communicating with the water storage chamber, and a piston assembly at least partially accommodated in the pressure chamber, characterized in that: The powder cup includes a powder chamber connected to the water storage chamber and a regulating valve arranged at the bottom of the powder chamber. The regulating valve includes a valve body and a knob located at the bottom of the valve body. By rotating the knob, the pressure in the powder chamber can be adjusted and the flow rate of the coffee liquid can be controlled.

2. The portable coffee machine capable of stable extraction according to claim 1, wherein: The piston assembly includes a pressing handle and an air inlet valve arranged in the pressing handle. The air inlet valve connects the pressure chamber with the air outside the coffee machine. The water storage chamber is provided with an air outlet valve, so that the water storage chamber and the pressure chamber are connected in one direction. When the air pressure in the pressure chamber increases, the water in the water storage chamber can be pressed toward the powder cup.

3. The portable coffee machine capable of stable extraction according to claim 2, wherein: The water storage chamber is located above the pressure chamber, and the air outlet valve is arranged on the upper part of the water storage chamber.

4. The portable coffee machine capable of stable extraction according to claim 3, wherein: It also includes an upper cover detachably connected to the main body, and the upper cover is arranged above the water storage chamber.

5. The portable coffee machine capable of stable extraction according to claim 1, wherein: It also includes a coffee cup detachably connected to the main body, and the coffee cup cover is arranged on the powder cup.

6. The portable coffee machine capable of stable extraction according to claim 1, wherein: The powder cup also includes a sealing ring arranged above the powder chamber, and a sealing gasket, a sealing gasket pressure plate and a water diversion plate arranged in sequence from top to bottom in the sealing ring, the sealing gasket is provided with a first through hole, the water diversion plate is provided with multiple second through holes, and the first through hole is connected to the second through hole.

7. The portable coffee machine capable of stable extraction according to claim 1, wherein: The powder cup further includes a filter screen bracket disposed below the powder chamber and a filter screen mounted on the filter screen bracket, wherein the filter screen is located above the regulating valve.

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