JPS6331711B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a shower device that heats water for showering using a bathtub that heats water in a bathtub.

Adjacent to the bathtub, a balanced-fluid or external-fired bathtub with a heat exchanger that heats the water using a gas burner or the like is installed, and the water in the bathtub is drained from the suction port installed at the bottom of one side wall of the bathtub. If the bath has a structure in which water is drawn into a heat exchanger in the pot and heated, and then the heated water is discharged into the bathtub from an outlet installed at the top of one side wall of the bathtub, the hot water for rising or showering is In order to achieve this, it is necessary to install an instantaneous water heater separate from the heat exchanger for heating the water in the bathtub, making the bathtub large, complex in structure, and expensive.

In order to solve this problem, the present inventor fixed holders to the inlet and outlet ports provided on one side wall of the bathtub, and used these holders to cover the covers provided at the ends of the water supply hose and shower hose. At the same time, the gasket on the periphery of the front end is brought into close contact with the inner wall surface of the bathtub, allowing communication between the inside of the cover and each hose, as well as communicating each hose with the suction port and the discharge port, and furthermore, each holder and the cover are removably engaged. Although the present invention has provided a shower device that prevents the hose from coming off during use, the present invention further improves this device so that even when the water pressure of a water supply source such as a tap is high, it does not adversely affect the bathtub. In addition, the hot water from the shower head was designed to have sufficient force.

That is, the structure of the present invention is a bathtub having an inlet and a discharge port on one side of the bathtub, and a bathtub having a bathtub in which bath water sucked in from the suction port is heated by the bathtub and discharged from the discharge port into the bathtub. , the suction port and the discharge port are covered and fixed respectively, and the hose that communicates with the cover placed on the suction port is connected to the water outlet of the water pressure motor of the water pressure conversion device, and the hose that communicates with the cover placed on the discharge port is connected to the water outlet of the hydraulic motor of the water pressure conversion device. is connected to the hot water inlet of the water supply pump of the water pressure conversion device, a water supply hose connected to a pressure water supply section such as tap water is connected to the water inlet of the water pressure motor, and a shower head is connected to the hot water outlet of the water supply pump. The rotor of the water pressure motor and the rotor of the hot water pump are connected to each other, and the water pressure motor driven by the water pressure rotates the water pump, so that the water pressure of the water supplied from the tap is high. Even if the shower head is too hot, the pressure of the water flowing into the bathtub is reduced without using a pressure reducing valve, and after the hot water is heated in the bathtub, the pressure is increased again by a pump and then supplied to the shower head.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The details of the apparatus of the present invention will be explained below based on an embodiment shown in the accompanying drawings.

In FIGS. 1 to 3, 1 is a bathtub, and 2 is a bathtub provided on one side of the bathtub. Inside this bathtub, a gas burner and a heat exchanger that heats with the gas burner are installed as is well known, and the discharge side of this heat exchanger is communicated with the outlet on the side wall of the bathtub 1 through a communication pipe 3. The suction side of the exchanger communicates with a suction port in the side wall of the bathtub 1 through a communication pipe 4. FIG. 2 shows a state in which the communication pipe 3 on the discharge port side and the bathtub 1 are connected, and the communication pipe 3 penetrates the side wall of the bathtub 1, and a gasket 6 is sandwiched between the collar 5 at the inner end and the side wall of the bathtub 1, and the communication pipe 3 is connected to the bathtub 1. It is designed to be tightened with a nut 7 screwed into a male thread on the outside of the tube 3.

A is a horizontal U-shaped holder, with its upper and lower sides 8
A claw 9 that engages with the collar 5 of the communicating tube 3 is provided at the tip of the bolt 11 inserted into the hole provided on both sides 8.
Tighten both sides 8 with nuts to fix it to the inner end of the communicating pipe 3.

Reference numeral B denotes a cylindrical cover, which is composed of an end wall 13 and a cylindrical wall 14, and a gasket 15 is attached to the periphery of the cylindrical wall 14 so as to be in close contact with the inner wall surface of the bathtub 1.

The rear end of the tubular portion 16 is fitted into a recess inside the center of the end wall 13 and joined together by means of adhesive or the like, and a pair of projections 17 are provided on the outer peripheral surface of the tubular portion 16 as engagement portions.

Further, a fitting tube 18 into which the tubular portion 16 is detachably fitted is integrally formed in the center of the holder A, and a pair of axial grooves 19 through which the protrusion 17 can pass is formed in the fitting tube 18. Each groove 19 is provided on the inner end surface of the fitting cylinder 18 as an engaging portion with which the projection 17 engages.
A spiral inclined surface 20 is formed starting from the inner end.

21 is a valve body fitted in the tubular part 16, and a spring 22
The valve port 23 at the inner end of the tubular portion 16 is closed, and when the water pressure inside the cover B exceeds a certain pressure, the valve body 21 is pushed open and the water inside the cover B is discharged from the outlet 24 at the center of the end wall 13. Allow it to be drained.

Reference numeral 25 denotes a disk-shaped valve plate, which is placed on the inside of the end wall 13, and whose central opening is rotatably fitted into the annular portion of the inner periphery of the end wall 13, and the outer periphery of the tubular portion 16. It is supported by the guard 27.

Further, the valve plate 25 is made of an elastic material such as rubber, and has a plurality of openings 28 formed at equal intervals on a circumference concentric with the rotation center of the valve plate 25. When the openings 29 are arranged in the same position and both openings 28 and 29 match, the inside and outside of the cover B are communicated, and when the openings 28 and 29 are completely shifted, the cover B
The inside is closed off from the outside, and a knob 30 fixed to a part of the valve plate 25 is projected to the outside through a part of the opening 29, and a knob 3 is attached to the side of the opening 29.
A notch 31 for rotating the valve plate 25 at 0 is provided.

32 is a hose attachment nipple provided on the upper side of the cover B, and a hose 33 whose one end is connected to this nipple 32 is connected to the hot water inlet 35 of the water pressure conversion device C.

B' in Figure 1 is the same as cover B in Figure 2,
The attachment means for the inner end of the communication pipe 4 are also exactly the same. However, in the case of cover B', the valve plate 21, spring 22, and discharge port 24 are unnecessary. However, the tubular portion 16, the valve plate 25, and the openings 28 and 29 are necessary. A hose attachment nipple 32 is also provided at the bottom of this cover B', and a hose 34 connected to this nipple 32 is connected to a water outlet 36 of the hydraulic conversion device C.

Next, the water pressure conversion device C in Figures 4 to 6
I will explain about it. This water pressure conversion device is composed of a water pressure motor M and a hot water pump P.

The hydraulic motor M has an annular case 4 having a side wall 40.
A lid 42 is fixed to the other side of the case 41, a rotor 44 is fixed to a shaft 43 rotatably mounted inside the case 41, and a plurality of vanes 46 pushed outward by a spring 45 are attached to the rotor 44. It is something.

The inner peripheral surface of the case 41 has a shaft 43 and a rotor 44.
The outer periphery of the rotor 44 is a circle concentric with the rotation center. Therefore, the outer peripheral surface of this rotor 44 and the vane 4
A chamber whose volume changes as the rotor 44 rotates is formed between the chambers 6 and 6. Reference numeral 47 denotes a water inlet provided in the case 41. A water supply hose 48 shown in FIG. 1 is connected to this inlet 47, and the other end of this hose 48 is connected to a water supply faucet 49 leading to a water supply source such as a tap. Also,
This case 41 is provided with the water outlet 36.

The hot water pump P has an annular case 5 having a side wall 52.
A lid 54 is fixed to the other side of the case 53, a rotor 56 is fixed to a shaft 55 rotatably mounted inside the case 53, and a plurality of vanes 58 pushed outward by a spring 57 are attached to the rotor 56. It is something.

The inner circumference of the case 53 of this pump P is also a circle eccentric to the rotation center of the shaft 55 and the rotor 56, and the outer circumference of the rotor 56 is a circle concentric with the rotation center. Case 5
The chamber surrounded by the inner peripheral surface of rotor 5 and the vane 58 is rotor 5.
It changes with the rotation of 6.

The hot water inlet 35 is provided in the case 53, and a shower hose 62 is connected to the hot water outlet 61 provided on the other side of the case 53.
Attach the shower head 63 as shown in Figure 1.

Case 4 of the water pressure motor M and hot water pump P
1 and 53 and the lids 42 and 54 are integrally connected by a plurality of bolts, and the shafts 43 and 55 are also integrally connected by appropriate joints.

This invention has the above configuration, and each cover B,
B' connects the tubular portion 16 to the fitting tube 18 of each holder A.
The projection 17 is inserted into the tubular part 16 through the groove 19.
By turning the tubular part 16 together with the holders B and B' and turning the protrusion 17 along the inclined surface 20, the holders B and B' move forward and the gasket 15 at the front end of the tubular part 16 moves forward. It is fixed in close contact with the inner wall surface of 1.

After each cover B, B' is fixed to each holder A in this way, the opening 29 of each cover B, B' is fixed to the valve plate 2.
Ignite the burner of bath pot 2 while it is closed in step 5,
When the water tap 49 is opened, pressurized fresh water supplied from a tap or the like flows into the case 41 from the water inlet 47 of the water pressure motor M of the water pressure conversion device C via the water supply hose 48.

The pressure water that has flowed into the case 41 fills the space between the vanes 46 and rotates the rotor 44 in the direction of expanding the space, that is, in the direction of the arrow in FIG. 5, and after the volume between the vanes reaches its maximum. , as the volume between the vanes decreases, the water flows from the outlet 36 through the hose 34 into the cover B', enters the heat exchanger of the bath pot 2 from both sides of the holder A inside this through the communication pipe 4, and is connected to the gas burner. The hot water is heated and enters the communication pipe 3, passes through both sides of the holder A from the discharge port at its end, passes through the cover B, the nipple 32, and the hose 33, and enters the hot water inlet 35 of the hot water pump P.

The rotor 44 of the hydraulic motor M is rotated by pressure water, and the rotor 56 of the pump P is also rotated by this rotor 44. Therefore, the hot water entering the case 53 from the hose 33 via the hot water inlet 35 flows through the vane 5.
As the space between the vanes 8 expands, the water is sucked in between the vanes 58, and as the space between the vanes 58 decreases in volume, the water passes through the water outlet 61 and the shower hose 62 and is discharged from the shower head 63.

In the above operation, in the illustrated example, the volume of the space between the vanes 46 and 58 of the motor M and the pump P constantly changes as the rotors 44 and 56 rotate.

Therefore, in the case of the hydraulic motor M, all the spaces between the vanes 46 on the side where the space between the bases 46 increases are connected to the water supply port 47, and all the spaces on the side where the space between the vanes 46 decreases. It is necessary to provide a groove communicating with the water outlet 36 on the inner surface of the lid 42 or the like.

For the same reason, in the water pump P as well, it is necessary to provide a groove on the inner surface of the lid 54 or the like that connects between the vanes 58 to the hot water inlet 35 and a groove that connects between the vanes 58 to the hot water outlet 61.

In addition, when the bath pot 2 is used for heating bath water, the valve plate 25 of each cover B, B' is rotated.
When the openings 28 of the bathtub are aligned with the openings 29 of the covers B and B', the bathtub water is circulated through the bathtub 2 and heated.

However, it is of course possible to circulate the bathtub water into the bathtub 2 even if the covers B and B' are removed from each holder A without the valve plate 25 and the openings 28 and 29.

As described above, the present invention is capable of heating fresh water from a tap or the like and discharging it from the shower head using the conventional balanced-flue type or external firing type bathtub. 62 is a hose 33 connected to the water inlet 47 and hot water outlet 61 of the water pressure conversion device C, and connected to the covers B and B' placed over the upper and lower discharge ports and suction ports of the bathtub 1 that communicate with the upper and lower sides of the bathtub 2; 34 is connected to the hot water inlet 35 and water outlet 36 of the water pressure conversion device C, the water pressure motor M of this device C is rotated by water pressure, and the water pump P is driven by this motor M, so that the bath pot 2 Since the heated water is sent out to the shower head 63, the rotor 44 of the water pressure motor M is driven to supply water whose water pressure has been reduced to the bathtub 2. In addition, since the hot water heated in the bath pot 2 is sent to the shower head 63 by the water supply pump P, the water whose pressure has decreased after passing through the water pressure motor M is increased in pressure by the action of the pump P, so that it is sent to the shower head 63. Hot water is discharged from 63 vigorously.

That is, in the device of the present invention, even if the pressure of water supplied from the tap is too high, there is no risk of the pressure inside the bathtub 2 rising too high, and hot water at a sufficient pressure is discharged from the shower head 63. Moreover, since the hot water pump P is driven by the water pressure of the water supply or the like, there are advantages such as no need for a separate power source.

[Brief explanation of the drawing]

Fig. 1 is a partial vertical sectional view showing one embodiment of the device of the present invention, Fig. 2 is an enlarged longitudinal sectional side view of the main parts of the same, Fig. 3 is an enlarged front view of the cover, and Fig. 4 is a hydraulic converter. The longitudinal side view, Figures 5 and 6 are respectively No. 4.
FIG. 1... Bathtub, 2... Bath pot, 33, 34... Hose, 35... Hot water inlet, 36... Water outlet, 47...
... Water inlet, 48 ... Water supply hose, 61 ... Hot water outlet, 62 ... Shower hose, 63 ... Shower head, B, B' ... Cover, C ... Water pressure conversion device, M ... Water pressure motor, P ...Hot water pump.

Claims (1)

[Claims] 1. In a bathtub with a bathtub that has a suction port and a discharge port on one side of the bathtub, and the bathtub water drawn from the suction port is heated by the bath pot and then discharged from the discharge port into the bathtub, the suction port and the discharge port are Each outlet is covered with a cover and fixed, and the hose connected to the cover placed over the suction port is connected to the water outlet of the hydraulic motor of the hydraulic conversion device, and the hose connected to the cover placed over the discharge port is connected to the water outlet of the hydraulic motor of the hydraulic conversion device. A water supply hose is connected to a hot water inlet of a hot water pump, and a water supply hose connected to a pressure water supply unit such as a tap is connected to a water inlet of the water pressure motor.
A shower hose having a shower head is connected to the hot water outlet of the hot water supply pump, and the rotor of the water pressure motor and the rotor of the hot water supply pump are connected to each other, so that the water pressure of pressurized water such as tap water is lowered by the water pressure motor, and the bath kettle is heated. A shower device that supplies water to the bathroom, heats the water in a bathtub, increases the pressure with a hot water pump, and supplies it to a shower hose.