MIXING DEVICE FOR TUB

Abstract

A mixing device for a tub for supplying to a tub a mixed liquid which has mixed gas and water includes: a 1st mixing tub which includes: a chamber with a port which connects to an inlet pipe of the mixed liquid at the top of the chamber, and a cylinder disposed within the chamber and having an upper end opening which connects to an outlet pipe of the mixed liquid and a lower end opening placed in the vicinity of a bottom of the chamber; and a 2nd mixing tub connecting to a flow inlet for supplying the mixed liquid to the inside of the tub and including a supply pipe with multiple holes or bores for the flowing out of the mixed liquid to the mixed liquid which has accumulated inside 2nd mixing tub.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

These and other features of this invention will now be described with reference to the drawings of preferred embodiments which are intended to illustrate and not to limit the invention.

FIG. 1 is a perspective diagram of tub 3 which appropriately uses the mixing device for a tub 1 which is related to Embodiment 1 of this invention.

FIG. 2 is a diagram which schematically shows the flow of the water and gas of the mixing device for a tub 1 which is related to Embodiment 1 of this invention.

FIG. 3 is an explanatory diagram which illustrates the 1^st mixing tub 10 which forms the mixing device for a tub 1 which is related to Embodiment 1 of this invention.

FIG. 4 is an explanatory diagram which illustrates the 2^nd mixing tub 20 which forms the mixing device for a tub 1 which is related to Embodiment 1 of this invention.

FIG. 5 is a partial section view which illustrates from the side the supply pipe 220 which is provided to the 2^nd mixing tub 20 which forms the mixing device for a tub 1 which is related to Embodiment 1.

FIG. 6 is an explanatory diagram which illustrates the periphery of the 2^nd mixing tub 20 which forms the mixing device for a tub 1 which is related to Embodiment 2 of this invention.

FIG. 7 is an explanatory diagram which illustrates the periphery of the 2^nd mixing tub 20 which forms the mixing device for a tub 1 which is related to Embodiment 3 of this invention.

FIG. 8 is an explanatory diagram which illustrates the periphery of the 2^nd mixing tub 20 which forms the mixing device for a tub 1 which is related to Embodiment 4 of this invention.

FIG. 9 is an explanatory diagram which illustrates the periphery of the 2^nd mixing tub 20 which forms the mixing device for a tub 1 which is related to Embodiment 5 of this invention.

FIG. 10 is an explanatory diagram which illustrates the periphery of the 2^nd mixing tub 20 which forms the mixing device for a tub 1 which is related to Embodiment 6 of this invention.

Claims

1. A mixing device for a tub for supplying to a tub a mixed liquid which has mixed gas and water, characterized by comprising: a 1st mixing tub which comprises: a chamber with a port which connects to an inlet pipe of the mixed liquid at the top of the chamber, anda cylinder disposed within the chamber and having an upper end opening which connects to an outlet pipe of the mixed liquid and a lower end opening placed in the vicinity of a bottom of the chamber;a 2nd mixing tub connecting to a flow inlet for supplying the mixed liquid to the inside of the tub, said 2nd mixing tub comprising a supply pipe with multiple holes or bores for the flowing out of the mixed liquid to the mixed liquid which has accumulated inside 2nd mixing tub;an intermediate supply path for supplying the mixed liquid to the 2nd mixing tub from the 1st mixing tub;a supply path for supplying the mixed liquid to the tub from the 2nd mixing tub;a recovery circulating path for recovery of the mixed liquid in the tub to the 1st mixing tub;a water supply for supplying water to a circulating path which reaches the tub via the 1st and 2nd mixing tubs from the recovery circulating path; anda gas supply for supplying gas to the circulating path which reaches the tub via the 1st and 2nd mixing tubs from the recovery circulating path.

2. The mixing device for a tub according to claim 1, wherein an open-closed valve is provided in the 2nd mixing tub.

3. The mixing device for a tub according to claim 1, wherein the 2nd mixing tub is provided with a counter flow wall for making collide in the 2nd mixing tub water flow of the mixed liquid accumulated in the 2nd mixing tub.

4. The mixing device for a tub according to claim 1, wherein the supply pipe is connected to the flow inlet from the intermediate supply path.

5. The mixing device for a tub according to claim 1, wherein the 2nd mixing tub is provided with a circulating pump, a flow path for flowing the mixed liquid which accumulated in the 2nd mixing tub by the circulation pump, and a flow out path for flowing out of the mixed liquid to the 2nd mixing tub from the circulation pump, wherein the supply pipe is connected to the flow out path.

6. The mixing device for a tub according to claim 1, wherein the multiple holes or bores are distributed uniformly in an axial direction of the supply pipe and around the circumference of the supply pipe so that the supply pipe can supply to a shower-shape object the mixed liquid to inside the 2nd mixing tub through the multiple holes or bores which are immersed with the mixed liquid when in use.

7. The mixing device for a tub according to claim 1, wherein the supply pipe has an upper portion and a lower portion and the multiple holes or bores are distributed exclusively around the upper portion so that the supply path can supply to a shower-shape object the mixed liquid in the 2nd mixing tub through the multiple holes or bores which are disposed above a liquid surface of the mixed liquid when in use.

8. The mixing device for a tub according to claim 1, wherein the gas supply section supplies carbon dioxide.

9. The mixing device for a tub according to claim 1 wherein the 1st mixing tub is closed except for the inlet pipe and the outlet pipe.

10. The mixing device for a tub according to claim 1, wherein the 2nd mixing tub is closed except for the flow inlet and a flow outlet connected to the intermediate supply path.

11. The mixing device for a tub according to claim 1, wherein the supply pipe is arranged upright in the 2nd mixing tub.

12. The mixing device for a tub according to claim 5, wherein the multiple holes or bores are distributed uniformly in an axial direction of the supply pipe and around the circumference of the supply pipe, said supply pipe having an upper end disposed in the vicinity of a top of the 2nd mixing tub and extends downward to a lower end connected to the flow out path disposed at a bottom of the 2nd mixing tub.

13. The mixing device for a tub according to claim 5, wherein the multiple holes or bores are distributed exclusively on an upper end of the supply pipe disposed in the vicinity of a top of the 2nd mixing tub, said supply pipe extending downward to a lower end connected to the flow out path disposed at a bottom of the 2nd mixing tub.

14. The mixing device for a tub according to claim 5, wherein the supply pipe has an upper portion and a lower portion connected to the flow out path disposed at a bottom of the 2nd mixing tub, and the multiple holes or bores are distributed exclusively around the upper portion so that the supply path can supply to a shower-shape object the mixed liquid in the 2nd mixing tub through the multiple holes or bores which are disposed above a liquid surface of the mixed liquid in the 2nd mixing tub when in use.

15. The mixing device for a tub according to claim 14, wherein the 2nd mixing tub is provided with a water level sensor for adjusting the liquid surface between the upper portion and the lower portion of the supply pipe.

16. The mixing device for a tub according to claim 15, wherein the flow inlet from the intermediate supply path is connected to the 2nd mixing tub at a position below the water level sensor.

17. The mixing device for a tub according to claim 15, wherein the flow inlet from the intermediate supply path is connected to the 2nd mixing tub at a position above the water level sensor.

18. The mixing device for a tub according to claim 6, wherein the supply pipe has an upper end connected to the flow inlet and extends downward to a lower end arranged away from a bottom of the 2nd mixing tub.

19. The mixing device for a tub according to claim 18, wherein the 2nd mixing tub is provided with a water level sensor for adjusting a liquid surface in the 2nd mixing tub at the lower end of the supply pipe.