Air intake for milk frother

Abstract

The invention discloses an air intake device for a milk foam maker. The air intake device comprises an air inlet pipe (1), a valve core (6) and a valve body (2), wherein the valve core (6) comprises a head part with external threads, and a circular truncated cone part with a small front part and a large rear part, an elastic seal ring (4) is arranged in a valve cavity (3) of the valve body (2), internal threads (5) are also arranged on the valve cavity (3), the internal threads (5) of the valve cavity (3) and the external threads on the head part of the valve core (6) are in threaded engagement, a through hole (7) used for communicating the valve cavity (3) with the outside air is formed in the head part of the valve core (6), a device used for rotating the valve core (6) is arranged on the end surface of the head part of the valve core (6), a triangular slot (9) with a large front part and a small rear part is arranged in a conical surface (8) of the valve core (6), the foremost end of the conical surface (8) extends into the central hole of the elastic seal ring (4), and the conical surface (8) tightly pushes against the elastic seal ring (4). The air intake device for the milk foam maker can adjust the air inflow as needed.

Description

technical field [0001] The invention relates to an air intake device of a milk frother. Background technique [0002] When drinking coffee, adding a layer of milk foam (referred to as milk foam) on the surface of the coffee can enhance the taste. A milk frother is a device for making milk foam. The milk frother includes a milk tube and an intake tube connected to the milk tube. The diameter of the intake tube is quite small, generally only a fixed value of about ten microns, such as 10um. When the steam drives the milk to flow from the milk tube Afterwards, a negative pressure will be formed in the milk duct, and a small amount of air will be sucked into the milk duct through the small-diameter air intake tube, and mixed with the milk to form milk froth. The diameter of the air intake pipe in the prior art is fixed, and the amount of trace air entering through the air intake pipe is also fixed. In this way, only a kind of milk foam with a fixed air ratio can be produced, a...

AI Technical Summary

Problems solved by technology

The diameter of the air intake pipe in the prior art is fixed, and the amount of trace air entering through the air intake pipe is also fixed. In this way, only a kind of milk foam with a fixed air ratio can be produced, and the taste is single, which cannot satisfy the fine taste and elegant taste of the user.

For a long time, people have been eager to solve the problem that the intake air volume cannot be adjusted, but because the diameter of the intake pipe is too small, only at the micron level, it is difficult to change its diameter

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