Bottle and dip tube

1. A bottle comprising,

a bottle main body having a bottle mouth portion at an upper part, and

a dip tube dipped into a liquid stored in the bottle main body, wherein

an upper end of the dip tube is arranged on an inner side of a peripheral wall of the bottle mouth portion with a void part that communicates inside and outside of the bottle main body provided through the bottle mouth portion,

the dip tube includes a tube main body, and a fixing portion arranged at one end of the tube main body to be connected to the bottle mouth portion,

the fixing portion includes an annular body having a tubular shape and arranged on the inner side of the bottle mouth portion, and a holding member which holds the tube main body on an inner side of the annular body, and the void part is formed between an inner circumferential surface of the annular body and an outer circumferential surface of the tube main body, and

the holding member is a plate-like member or a rod-like member that extends along a vertical direction of the bottle mouth portion, and connects the inner circumferential surface of the annular body and the outer circumferential surface of the tube main body.

2. The bottle according to claim 1 , wherein the annular body includes a flange portion that fits into an upper end of the bottle mouth portion.

3. The bottle according to claim 2 , wherein an outer circumferential surface at a lower end of the annular body is arranged spaced apart from an inner peripheral surface of the bottle mouth portion.

4. The bottle according to claim 1 , wherein a diffuser portion is arranged at the other end of the tube main body, and is adapted to discharge gas supplied from one end of the tube main body into the liquid stored in the bottle main body as air bubbles.

5. The bottle according to claim 2 , wherein a diffuser portion is arranged at the other end of the tube main body, and is adapted to discharge gas supplied from one end of the tube main body into the liquid stored in the bottle main body as air bubbles.

6. The bottle according to claim 3 , wherein a diffuser portion is arranged at the other end of the tube main body, and is adapted to discharge gas supplied from one end of the tube main body into the liquid stored in the bottle main body as air bubbles.

7. A dip tube comprising a tube main body and a fixing portion arranged at one end of the tube main body, wherein

the fixing portion includes an annular body having a tubular shape and a holding member that holds the tube main body on an inner side of the annular body,

a void part that communicates the ends of the annular body is formed between an inner circumferential surface of the annular body and an outer circumferential surface of the tube main body, and

the holding member is a plate-like member or a rod-like member, and connects the inner circumferential surface of the annular body and the outer circumferential surface of the tube main body.

8. The dip tube according to claim 7 , further comprising a diffuser portion for discharging gas supplied from one end of the dip tube, wherein

the diffuser portion includes an upper housing connected to the other end of the tube main body and a lower housing attached to the upper housing,

the upper housing includes a plate body in which one surface side connects to the tube main body, and a side wall portion arranged in an upright manner on the other surface of the plate body,

the lower housing includes a lid that covers a region surrounded by the side wall portions of the upper housing, and a peripheral wall portion arranged in an upright manner from a peripheral edge of the lid and formed with a through-hole, and

the lower housing is attached to the upper housing with the peripheral wall portion arranged on an outer side of the side wall portion and a gap formed between the side wall portion and the peripheral wall portion.