JP2003139412A - Bath tub connecting adapter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a bath tub connecting adaptor preventing high-temperature water from directly entering the tub by mixing the high-temperature water with simultaneously supplied cold water before entry into the tub or by mixing the high-temperature water with hot water in the tub in the case of addition of high-temperature water not involving mixing with cold water. SOLUTION: In a bath tub connecting adapter for supplying hot water to the tub by connecting a hot water pipe to the tub, a hot water channel 8 communicating with the main body A1 is spirally formed on the periphery of the main body A1 connecting to the hot water pipe. A hot water outlet 7 communicating with the tub is provided near the end of the channel 8 and, in the channel 8, a ramp 81 is provided, which gradually narrows down the channel 8. A hot water intake port 8h communicating with the inside of the tub is also formed in the channel 8 at the back of the ramp 81.

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bathtub connection adapter, and more particularly, to hot water supply, after high-temperature hot water is completely mixed with simultaneously supplied water. A bathtub connection adapter that can be discharged into the bathtub, and even in the case of only hot water in which water is not mixed, by mixing with hot water in the bathtub, high-temperature hot water can be prevented from being directly discharged into the bathtub. It is about. 2. Description of the Related Art Conventionally, a bathtub connection adapter is attached to a bottom portion of a side of a bathtub, a hot water pipe is connected to the bathtub connection adapter, and hot water is directly supplied into the bathtub or a plurality of hot water pipes are used. The hot water in the bathtub is circulated so that it can be cooked. In this case, if high-temperature hot water is directly supplied from the hot water supply pipe, there is a risk that the bather may be burned.In recent years, a hot water supply pipe and a water supply pipe have been connected to this bathtub connection adapter, and hot water and water have to be connected. A bathtub connection adapter has been proposed in which the water is mixed in advance and discharged into the bathtub. In the above-mentioned conventional bathtub connection adapter, the hot water supply pipe and the water supply pipe are connected in the bathtub connection adapter to supply hot water and water. Since the mouth and the water supply port are formed so as to open separately in the bathtub, even if hot water and water can be mixed in the bathtub, the water does not mix with water near the hot water supply port, and the hot water directly enters the bathtub. The hot water is discharged, and there is a problem that if a bather touches the hot water directly, there is a risk of getting burned. The present invention has been made in consideration of the above-mentioned problems of the conventional bathtub connection adapter, and when hot water is supplied, high-temperature hot water is completely mixed with water to be supplied at the same time and then discharged into the bathtub. Still further, an object of the present invention is to provide a bathtub connection adapter that can prevent high-temperature hot water from being directly discharged into a bathtub by mixing with hot water in a bathtub even when only hot water in which water is not mixed is used. . [0005] In order to achieve the above object, a bathtub connection adapter of the present invention is a bathtub connection adapter for supplying hot water into a bathtub by connecting the hot water tube to the bathtub. A hot water supply passage communicating with the main body is spirally formed on the outer periphery of the communicating main body, and a discharge port in the bath tub communicating with the inside of the bath tub is formed near the end of the hot water supply passage. Is provided with an inclined plate for gradually narrowing the hot water supply flow path, and a hot water supply port communicating with the inside of the bathtub is formed in the hot water supply flow path on the back side of the inclined plate. In this bathtub connection adapter, hot water and hot water for water supply are discharged into a spiral hot water supply channel formed on the outer peripheral portion of the main body, so that the hot water and water are separately discharged. Even if it is done, it can be sufficiently mixed when flowing in this hot water supply flow path, and further, by suctioning and mixing the hot water in the bathtub from the hot water inlet by the negative pressure generated on the back side of the inclined plate, Hot water can be safely supplied even if the hot water supplied from the hot water supply pipe is high-temperature hot water. And when you do hot water,
The hot water in the bathtub can be mixed with the hot water in the bathtub by sucking the hot water in the bathtub from the hot water inlet to the hot water supply channel by the negative pressure generated on the back side of the inclined plate. Hot water can be safely supplied without direct discharge into the interior. An embodiment of a bathtub connection adapter according to the present invention will be described below with reference to the drawings. FIGS. 1 and 2 show an embodiment of a bathtub connection adapter according to the present invention. In the figure, A is a bathtub connection adapter which is attached to a predetermined position in the bathtub. The bathtub connection adapter A is connected to two pipes 2 and 3 of a hot water supply pipe and a water supply pipe, and supplies hot water into the bathtub. And a main unit A1 for supplying water, and a hot water supply channel unit A2 integrally formed on the outer peripheral portion of the main unit A1. The main body A1 has the same construction and operation as a conventional circulation type bathtub connection adapter, and is connected to a hot water supply source such as a hot water boiler and a water pipe via a switching valve (not shown). The pipes 2 and 3 are connected. Further, the main body part A1 has two independent suction ports 4a, 4b.
And two independent hot water supply / discharge outlets 5a and 5b are formed. The suction ports 4a and 4b and the discharge
Check valves 40a, 40b, 50 are provided in a, 5b to restrict the water flow in one direction so that only suction or discharge is performed.
a and 50b are provided respectively. In addition, when hot water is supplied to the bathtub and when the hot water in the bathtub is circulated for additional cooking, the two pipes 2 and 3 may be switched, for example, by a switching valve provided in the bathroom. I do. The hot water supply flow path section A2 communicates with discharge ports 5a and 5b formed on the outer peripheral wall side of the main body section A1 and forms a discharge port 7 in the bathtub on the outer peripheral wall 6 which communicates with the inside of the bathtub. And, inside the hot water supply channel part A2 in the shape of a donut,
A spiral hot water supply channel 8 is formed. As shown in FIG. 1, the spiral hot water supply flow path 8 has a main body part A that also serves as an outer peripheral wall 6 of the hot water supply flow path part A2 and an inner peripheral wall of the hot water supply flow path part A2.
1 is formed by disposing a spiral-shaped partition plate 9 between the outer peripheral wall 1 and the spiral hot water supply channel 8 to supply hot water or water from the inner peripheral end side thereof. The hot water and the water are mixed while flowing in the hot water supply flow path 8, and are discharged into the bath tub from the discharge port 7 in the bath tub on the outer peripheral end side of the spiral hot water supply flow path 8. The spiral hot water supply passage 8 extends from the inner peripheral end side to the outer peripheral end side, so that the cross-sectional area of the flow passage is gradually enlarged, so that hot water or water flows into the spiral hot water supply passage 8. Supply is
Spiral hot water supply channel 8 from discharge ports 5a and 5b of main body portion A1
It is performed so that the flow velocity becomes faster in a narrow portion of the above. In addition,
The discharge port 7 in the bathtub on the outer peripheral end side is formed by directly drilling in the outer peripheral wall 6 of the hot water supply channel portion A2 near the end of the hot water supply channel 8. Further, when hot water is supplied from a boiler or the like when hot water is supplied, the spiral hot water supply flow path 8 supplies hot water into the bath tub so that the hot water does not cause burns. A configuration that can be used. This is because, in the spiral hot water supply flow path 8, a narrow flow path portion 8a is formed by disposing an inclined plate 81 that gradually narrows the hot water supply flow path downstream of the discharge ports 5a and 5b on the main body portion A1 side. Along with
A hot water inlet 8h communicating with the inside of the bathtub is formed in the hot water supply channel 8 on the back side of the inclined plate 81. As a result, a negative pressure is generated on the back side of the inclined plate 81, and the hot water in the bathtub is sucked into the spiral hot water supply channel 8 from the hot water inlet 8h by this negative pressure, and mixed with the hot water. Hot water can be safely carried out.
One or two or more inclined plates 81 can be provided in the hot water supply channel 8, and various shapes such as a sawtooth shape can be adopted. Next, the operation of the bathtub connection adapter will be described. When hot water and water are supplied to the inner peripheral end side of the spiral hot water supply channel 8 from the discharge ports 5a and 5b of the main body portion A1, the hot water and the water flow through the spiral hot water flow channel 8 to be mixed. After that, it is discharged into the bathtub from the discharge port 7 in the bathtub on the outer peripheral end side. In this case, even when the hot water is at a high temperature, the hot water is mixed by the water supply, and the hot water in the bathtub is sucked and mixed from the hot water inlet 8h by the negative pressure generated on the back side of the inclined plate 81. In this case, moderately high-temperature hot water is safely supplied. When hot water is supplied, only high-temperature hot water is supplied to the inner peripheral end side in the spiral hot water supply channel 8.
When the high-temperature hot water flows through the spiral hot water supply channel 8, the hot water in the bathtub is sucked into the hot water supply channel 8 from the hot water inlet 8 h by the negative pressure generated on the back side of the inclined plate 81. The hot water in the bathtub can be mixed, so that the temperature of the hot water drops and the hot water can be safely fed. According to the bathtub connection adapter of the present invention, hot water and hot water for water supply are discharged into a spiral hot water supply channel formed on the outer peripheral portion of the main body. , Hot water and water are separately discharged, they can be sufficiently mixed when flowing through the hot water supply channel, and furthermore, the negative pressure generated on the back side of the inclined plate causes The hot water can be safely supplied even if the hot water supplied from the hot water supply pipe is hot water. Then, when hot water is supplied, the hot water in the bathtub is sucked from the hot water inlet to the hot water supply channel by the negative pressure generated on the back side of the inclined plate, so that the hot water and the hot water in the bathtub can be mixed. Thus, hot water can be safely supplied without directly discharging hot water into the bathtub.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a longitudinal sectional front view showing one embodiment of a bathtub connection adapter of the present invention. FIG. 2 is a longitudinal sectional side view of the same. [Description of Symbols] A Bathtub connection adapter A1 Main unit A2 Hot water supply channel unit 1 Outer peripheral wall 2, 3 Piping 4a, 4b Suction port 5a, 5b Discharge port 6 Outer peripheral wall 7 Discharge port in bathtub 8 Hot water supply channel 8a Narrow channel section 8h Suction port 81 Inclined plate 9 Partition plate

   ────────────────────────────────────────────────── ─── Continuation of front page    (72) Inventor Shinji Kuramoto             4-5-11 Higashiota, Ibaraki-shi, Osaka             Hitachi Air Conditioning System Ibaraki Plant F term (reference) 3L037 DA02 DB01 DB07

Claims (1)

Claims: 1. A bathtub connection adapter for supplying hot water into a bathtub by connecting a hot water supply pipe to a bathtub, wherein a hot water supply flow communicating with the main body portion is provided on an outer periphery of the main body portion communicating with the hot water supply pipe. The passage is formed in a spiral shape, a discharge port in the bath tub communicating with the inside of the bath tub is formed near the end of the hot water supply passage, and an inclined plate for gradually narrowing the hot water supply passage is provided in a part of the hot water supply passage. A bathtub connection adapter, wherein a hot water supply port communicating with the inside of the bathtub is formed in a hot water supply flow path on the back side of the inclined plate.