JPS6342172B2 - - 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 inventor fixed holders to the inlet and outlet ports provided on one side wall of the bathtub, and used these holders to cover the ends of the water supply hose and shower hose. The gasket on the periphery of the front end is brought into close contact with the inner wall surface of the bathtub to allow communication between the inside of the cover and each hose, as well as to communicate each hose with the suction port and the discharge port, and each holder and each cover are connected to each other in a detachable manner. Although the present invention has provided a shower device in which a joint is provided to prevent the hose from coming off during use, the present invention further improves this device so that even when the water pressure of the water supply source such as tap water is high, it does not adversely affect the bathtub. without giving
Moreover, the hot water coming out of the shower head was designed to have sufficient force.

That is, the structure of the present invention includes a bathtub in which a suction port and a discharge port are provided on one side of the bathtub, and the bathtub water sucked in from the suction port is heated by the bathtub and discharged from the discharge port into the bathtub. In the bathtub, cover the inlet and outlet each with a cover and fix it.
The hose connected to the cover placed over the suction port is connected to the water outlet of the water pressure conversion device, and the hose connected to the cover placed over the discharge port is connected to the hot water inlet of the water pressure conversion device. A water supply hose connected to the water pressure conversion device is connected to the water inlet of the water pressure conversion device, a shower hose having a shower head is connected to the hot water outlet of the water pressure conversion device, and the water pressure conversion device is operated by pressure water flowing from the water inlet. A diaphragm driven by this diaphragm, a crankshaft driven by this diaphragm, a water supply valve body and a discharge valve body that are opened and closed by this crankshaft to send water flowing in from the water inlet to the water outlet, and the pressure changes caused by the operation of the diaphragm. By providing a check valve-type suction valve body and a discharge valve body that open and close to send the hot water sucked from the hot water inlet to the hot water outlet, the pressure of the water sent to the bath pot is reduced, and the hot water heated in the bath pot is The pump action of a diaphragm is used to draw in water, increase the pressure, and supply it 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 Figures 1 to 3, 1 is a bathtub, 2
is a bath kettle installed on one side. 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 the connection state of the communication pipe 3 on the discharge port side and the bathtub 1,
A communication pipe 3 passes through the side wall of the bathtub 1, and a gasket 6 is sandwiched between a collar 5 at the inner end and the side wall of the bathtub 1, and is tightened with a nut 7 screwed into a male screw on the outside of the communication pipe 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 that is in close contact with the inner wall surface of the bathtub 1 is attached to the periphery of the front end of the cylindrical wall 14.

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 into the tubular part 16, which closes the valve port 23 at the inner end of the tubular part 16 with a spring 22,
When the water pressure inside reaches a certain pressure or more, the valve body 21 is pushed open so that the water inside the cover B is discharged from the outlet 24 at the center of the end wall 13.

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.

The valve plate 25 is made of an elastic material such as rubber, and a plurality of openings 28 are formed at equal intervals on a circumference concentric with the rotation center of the valve plate 25, and a plurality of openings 28 of the same diameter are formed on the end wall 13. When the openings 29 of the cover B are arranged in the same position and the openings 28 and 29 match, the inside and outside of the cover B are in communication, and when the openings 28 and 29 are completely shifted, the inside and outside of the cover B are connected.
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.

Reference numeral 32 designates a hose attachment nipple provided on the upper side of the cover B, and a hose 33 with one end connected to this nipple is connected to the hot water inlet 35 of the water pressure conversion device C shown in FIG. 4.

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 body 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 device C shown in FIG.

Next, the hydraulic conversion device C shown in FIG. 4 will be explained. In this figure, 40 is a main body, 41 is a cover fixed to the main body 40, a diaphragm 42 is sandwiched between them, and an upper chamber 43 and a lower chamber 44 are formed above and below the diaphragm 42.

Valve boxes 45 and 46 are respectively fixed on the cover 41, a water inlet 47 is provided on the side of the valve box 45, and a valve port 48 is provided on the cover 41 to communicate the inside of the valve box 45 to the upper chamber 43. A valve rod 50 integrated with a water supply valve body 49 for opening and closing the valve port 48 is passed through the upper end of the valve box 45 while maintaining watertightness.

Reference numeral 51 denotes a crankshaft rotatably mounted on the cover 41 by a suitable bearing, and is connected to the valve stem 5.
The annular body 52 connected above is fitted on the outside of a cam 53 fixed to the shaft 51, and the valve body 49 is provided with a spring 54 that pulls down the valve rod 50 and presses the inner surface of the annular body 52 against the cam 53.

Inside the valve box 46 is a valve port 5 that communicates with the water outlet 36.
5 and a discharge valve body 56 for opening and closing this valve port 55, and a valve rod 57 fixed to this valve body 56 is attached to the valve body 46.
The upper end of the valve rod 57 is penetrated in a watertight manner, and the upper end of the valve rod 57 is opposed to the lower side of the cam 58 fixed to the shaft 51. The valve body 56 is provided with a spring 59 that pushes up the valve body 56. A communication port 60 is provided that communicates the upper chamber 43 with the inside of the valve box 46.

The advance/retreat rod 61 connected to the diaphragm 42
The cover 41 is penetrated in a watertight manner, the upper end of a connecting rod 62 connected to the upper end thereof is fitted into a crank pin 63 provided on the crankshaft 51, and a spring 64 for pushing up the diaphragm 42 is provided in the main body 40. .

A pair of valve chambers 65 and 66 are provided in the main body 40,
A valve port 67 communicating with the hot water inlet 35 is provided at the bottom of the valve chamber 65, a communication port 68 communicating with the lower chamber 44 is provided at the top of the valve chamber 65, and a suction valve body 69 for opening and closing the valve port 67; A spring 70 that presses down the body 69 is provided. A discharge valve port 71 communicating with the lower chamber 44 is provided in the upper part of the valve chamber 66, and a discharge valve body 72 for opening and closing this valve port 71 and a spring 73 for pushing up this valve body 72 are provided. An outlet 74 is provided.

A water supply hose 75 is connected to the water inlet 47 as shown in FIG. 1, and the other end of this hose 75 is connected to a water tap 76 such as a water supply tap. It is connected to the shower head 78 as shown in FIG.

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.
After reaching the inner end of the bathtub 1, the holders B and B' move forward by rotating the tubular part 16 together with the holders B and B' and rotating the protrusion 17 along the inclined surface 20. It is fixed in close contact with the inner wall surface of the

After each cover B, B' is fixed to each holder A in this way, the opening 29 of each cover B, B' is connected to the valve plate 2.
Ignite the burner of bath pot 2 while it is closed in step 5,
When the water tap 76 is opened, pressurized fresh water supplied from a tap or the like flows into the valve box 45 from the water inlet 47 of the water pressure conversion device C via the water supply hose 75. At this time, the valve port 48 opens as shown in FIG.
5 is closed by the valve body 56, so the water tap 76
The pressure water flows into the upper chamber 43 and pushes the diaphragm 42 down against the spring 64.

When the diaphragm 42 is pressed down, the lower chamber 44
The water pressure inside rises, which causes the valve body 69 to close to the valve port 67.
is closed, the valve body 72 is pushed open, and the lower chamber 4 is opened first.
The hot water contained in the bathtub 4 is pushed out from the hot water outlet 74, passes through the shower hose 77, and is ejected from the shower head 78.

When the diaphragm 42 is lowered as described above, the advancement/retraction rod 61 connected thereto is lowered, and the crankshaft 51 rotates by half a rotation via the connecting rod 62 and crank pin 63.
Due to the action of the cams 53 and 58, the valve port 48 is closed by the valve body 49, and the valve port 55 is opened.

Therefore, the water pressure from the water tap 76 is cut off, and the force of the spring 64 pushes up the diaphragm 42 to cause the water in the upper chamber 43 to flow into the valve box 46 from the communication port 60. Exit 36,
It flows into the cover B' through the hose 34, and flows from both sides of the holder A inside the cover B' through the communication pipe 4 to the bath pot 2.
It enters the heat exchanger, is heated by a gas burner, enters the communication pipe 3, passes through both sides of holder A from the discharge port at its end, covers B, nipple 32, and hose 33.
The hot water enters the hot water inlet 35 of the hydraulic conversion device C through the valve port 67, pushes open the valve body 69, flows into the valve chamber 65, and flows into the lower chamber 44 through the communication port 68.

When the advancing/retracting rod 61 rises as described above, the crankshaft 51 rotates half a turn, and the cams 53 and 58 cause the valve port 4 to move upward.
8 is opened, the valve port 55 is closed by the valve body 56, and pressurized water from the water tap 76 flows into the upper chamber 43 as in the previous case.

By repeating the above action, the pressure water supplied from the faucet 76 activates the diaphragm 42, is heated in the bathtub 2, and is discharged from the shower head 78.

However, if there is only one diaphragm 42, the hot water sent to the shower head will be a pulsating flow. For this reason, in the example shown in FIG. 4, three sets of operating mechanisms using the diaphragms 42 described above are provided, and three crank pins 63 provided on the crankshaft 51 are arranged at 120° intervals to eliminate the pulsating flow. In this case, each hot water inlet 35,
The hot water outlet 74, the water outlet 36, and the water inlet 47 may be connected together by hoses 33, 34, 75, and 77 to form a circuit.

In addition, when the bath pot 2 is used for heating bath water, the valve plates 25 of each cover B and B' are rotated.
When the openings 28 of the bathtub are aligned with the openings 29 of the covers B and B', bath 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 taps etc. using the conventional balanced flush type or external firing type bathtub and discharging it from the shower head. A hose 33 77 is connected to the water inlet 47 and the hot water outlet 74 of the water pressure conversion device C, and is 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 parts of the bathtub 2. , 34 are connected to the hot water inlet 35 and water outlet 36 of the water pressure conversion device C, the diaphragm 42 in this device C is actuated by the water pressure, and the heated water is sucked into the bath pot 2 by its pumping action and is transferred to the shower head. 78
Therefore, water is supplied to the bathtub 2 by the suction action of the diaphragm 42. Therefore, even when the water pressure fed into the upper chamber 43 of the diaphragm 42 from the faucet 76 is high, there is no fear that the pressure in the bathtub 2 will rise more than necessary and the heat exchanger will be punctured. Furthermore, since hot water is delivered to the shower head 78 by the pressurizing action of the diaphragm 42, sufficient pressure can be obtained when the hot water is discharged from the shower head 78, even though the pressure inside the bath pot 2 is low. Moreover, it has the advantage that other power sources such as a power source are not required.

[Brief explanation of the drawing]

FIG. 1 is a partially longitudinal side view showing an embodiment of the device of the present invention; FIG. 2 is an enlarged longitudinal side view of a portion of the same;
FIG. 3 is an enlarged front view of the same as the above, and FIG. 4 is an enlarged partially vertical side view of the hydraulic conversion device. 1... Bathtub, 2... Bath pot, 33, 34... Hose,
35...Hot water inlet, 36...Water outlet, 47...Water inlet, 7
4... Hot water outlet, 75... Water supply hose, 77... Shower hose, 78... Shower head, B, B'... Cover, C... Water pressure conversion device.

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 that is sucked in 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 Cover and fix each outlet with a cover, connect the hose that connects to the cover placed over the suction port to the water outlet of the water pressure conversion device, and connect the hose that connects to the cover placed over the discharge port to the hot water inlet of the water pressure conversion device. A water supply hose connected to a pressurized water supply such as tap water is connected to a water inlet of the water pressure conversion device, a shower hose having a shower head is connected to a hot water outlet of the water pressure conversion device, and a shower hose having a shower head is connected to the water pressure conversion device. A diaphragm operated by pressure water flowing in from the water inlet, a crankshaft driven by this diaphragm, a water supply valve body and a discharge valve that are opened and closed by the crankshaft to send water flowing in from the water inlet to the water outlet. body and
A shower device equipped with a check valve-type suction valve body and a discharge valve body that open and close according to pressure changes caused by the operation of a diaphragm and send hot water sucked from a hot water inlet to a hot water outlet.