Abstract: Provided are a solution preparation device and a nasal irrigator. The solution preparation device includes a casing, a flow valve, an on-off valve, a top cover, a first mixer, and a second mixer. A partition is provided in the casing and divides a receiving space into a first chamber and a second chamber. The partition is provided with a mixing channel communicated with the first and second chambers, and a part of the bottom plate corresponding to the second chamber is provided with a discharge channel. The flow valve is arranged in the mixing channel, and the on-off valve is arranged in the discharge channel. Each of the first and second mixers is provided at the top cover, and extends into a respective one of the first and second chambers when the top cover is connected to the casing.

Abstract: Provided are a milk bowl and a wearable breast pump. The milk bowl is applied to the wearable breast pump, and includes a bowl body and an airbag. The bowl body is provided with a channel, a milk sucking port, a negative pressure port, a milk outlet and an airbag mounting groove. The milk sucking port, the negative pressure port and the milk outlet are spaced apart, and are all communicated with the channel. The negative pressure port is further communicated with the airbag mounting groove. The airbag is mounted in the airbag mounting groove. When the airbag in a natural state, the bottom of the airbag is in a wave shape.

Abstract: Provided are a solution preparation device and a nasal irrigator. The solution preparation device includes a casing, a flow valve, an on-off valve, a top cover, a first mixer, and a second mixer. A partition is provided in the casing and divides a receiving space into a first chamber and a second chamber. The partition is provided with a mixing channel communicated with the first and second chambers, and a part of the bottom plate corresponding to the second chamber is provided with a discharge channel. The flow valve is arranged in the mixing channel, and the on-off valve is arranged in the discharge channel. Each of the first and second mixers is provided at the top cover, and extends into a respective one of the first and second chambers when the top cover is connected to the casing.