Brewing head device

Abstract

The invention discloses a brewing head device, which comprises a brewing head body, a coffee powder box, an adapting tube, a back-pressure device and a pressure relief device, wherein one end of the brewing head body is arranged in the coffee powder box; the adapting tube is arranged in the other end of the brewing device; the back-pressure device and the pressure relief device are arranged between the adapting tube and the brewing head body respectively; the pressure relief device comprises a check valve and a positioning ring; the check valve is fixedly arranged on the brewing head body through the positioning ring. The brewing head device adopting the technical scheme has the beneficial effects of good pressure relief effect, stable performance, simple structure, small occupied space and low cost.

Description

technical field [0001] The invention relates to a brewing head device, in particular to a brewing head device with a pressure relief function. [0002] Background technique [0003] At present, most of the high-pressure coffee machines on the market will generate a lot of pressure when making coffee, and this pressure is a necessary condition for getting a cup of delicious and high-quality coffee. However, after brewing coffee, there will be some pressure inside the coffee powder brewing system. If this part of the pressure is not released, the brewing system will form a vacuum phenomenon, just like two suction cups are sucked together and it is difficult to open. Similarly, at this time we need a pressure relief valve, which has a valve that communicates with the outside world, and the valve opens after the coffee is brewed, so that the brewing system can be easily opened. There are two types of traditional pressure relief devices. One is a solenoid valve body, which is c...

AI Technical Summary

Problems solved by technology

However, after brewing coffee, there will be some pressure inside the coffee powder brewing system. If this part of the pressure is not released, the brewing system will form a vacuum phenomenon, just like two suction cups are sucked together and it is difficult to open. Similarly, at this time we need a pressure relief valve, which has a valve that communicates with the outside world, and the valve opens after the coffee is brewed, so that the brewing system can be easily opened

There are two types of traditional pressure relief devices. One is a solenoid valve body, which is connected in series with the waterway. After the coffee is brewed, the solenoid valve is opened by electronic program control to release the internal pressure. Although this valve is relatively stable However, it has higher requirements for the use environment, and the cost is much higher than that of products with similar functions.

The other type is mostly mechanical pressure relief, the structure is more complicated and because it is mechanical, there will be some risks of instability, and the quality cannot be guaranteed.

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