Efficient and stable liquid mixing device and application thereof

The invention provides an efficient and stable liquid mixing device which comprises a liquid storage device and an ejector, and a drip cup, a flow speed regulator and a one-way valve are sequentially arranged on a connecting pipe; the ejector comprises a body, a water inlet, a water outlet and a liquid inlet are formed in the body, and the water inlet and the water outlet are opposite and communicated through a water channel. A receiving chamber is formed at the joint of the liquid inlet and the water channel, a mixing chamber is formed between the water outlet and the receiving chamber, and an inlet chamber is formed between the water inlet and the receiving chamber; the receiving chamber comprises a liquid inlet cavity and a liquid mixing cavity which are located on the two sides of the water channel, the liquid inlet cavity is communicated with the liquid inlet, and the liquid mixing cavity and the liquid inlet cavity are both communicated with the water channel. According to the shower head, skin care liq