JPH0419320Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a water pressure-responsive gas valve for a bathtub with hot water supply.

[Conventional technology]

A conventional device of this kind, as shown in FIG.
The gas valve 2 on the upstream side of the hydraulically responsive gas valve a' and the hydraulic actuator 3 on the driving side are integrally installed, but the downstream gas manifold 4 with a governor includes a water heater governor 4a, a bath governor. 4
b and the pilot burner are generally connected by a water boiling gas pipe b, a bath gas pipe c, and a pilot gas pipe d, respectively. However, this structure not only requires a large number of assembly steps and increases costs, but also has a large mechanical set related to the hydraulically responsive gas valve, which is an obstacle to downsizing the device.

In order to improve these points, the present applicant is currently applying for utility model registration for a system that integrates a set of mechanical parts related to a hydraulically responsive gas valve (Utility model patent application published in 1983).
-Refer to Publication No. 167057).

As shown in FIGS. 12 and 13, this prior invention has a water pressure-responsive gas valve a'' having a valve body 8 in its casing 1 which is interlocked with an upstream gas tank 2 and engages with a hydraulic actuator 3. A boiling gas chamber 1a is provided, and a pair of boiling gas passages 1c and 1c' communicating with a part of the manifold 4 with a gas governor are provided downstream of the valve body 8 of the boiling gas chamber, and the boiling gas Chamber 1a and boiling gas passages 1c, 1
A pair of bath gas passages 1d, 1d' and a pilot gas passage 1e, which communicate with the gas tank 2 and other parts of the manifold 4 with a gas governor, independently of c'.
A manifold 4 with a gas governor is integrally connected to the opening surface of each gas passage of the water pressure responsive gas valve housing 1 via a packing 7, and the pair of water boiling gas passages and the pair of bath gas passages are connected to each other. The passages are opened symmetrically with respect to the line passing through the pilot gas passage as an axis and on the same side with respect to the axis so that the passages communicate with the corresponding governors of the manifold, and when coupled, the casing and A pilot hole is provided in the packing interposed between the manifold and a hole for the water heater and a hole for the bath that open a pair of asymmetric passages sandwiching the axis line between the two passages, and the packing is used for the front and back sides. This allows the gas inlets for water heating and bathing into the manifold to be interchanged.

[The problem that the idea aims to solve]

According to the invention of the prior application, a hydraulically responsive gas valve
a″-related mechanical parts are integrated, but the two water boiling gas passages 1 downstream of the hydraulic responsive gas valve 8
Since it is necessary to provide a total of five gas passages in the housing 1: c, 1c', two bath gas passages 1d, 1d', and a pilot gas passage 1e, the distance between the hydraulically responsive gas valve 8 and the hydraulic actuator 3 is This has become an obstacle to downsizing the mechanical parts associated with hydraulically responsive gas valves.

In addition, in the prior invention, each gas passage opening surface of the housing 1 of the hydraulically responsive gas valve is directly connected to the manifold 4 with a governor through packing, so the nozzle tip attached to the manifold 4 is replaced. When changing the type of gas to be used, it is necessary to take out the hydraulically responsive gas valve a'', the hydraulic actuator 3, and the gas tank 2, which are unrelated to the gas type changing process, from the equipment. There is a problem in that it requires unnecessary labor such as removing and installing water supply pipes.

The present invention improves the problems of the conventional technology as described above, and further downsizes the mechanical parts related to hydraulically responsive gas valves.In addition, when changing the type of gas, only the manifold can be taken out, making it possible to quickly and easily change the type of gas. The purpose of the present invention is to provide a hydraulically responsive gas valve capable of

[Means to solve the problem]

In order to achieve the above-mentioned objects, the present invention provides a water boiling gas chamber in the housing of a hydraulically responsive gas valve, which communicates with an upstream gas tank and has a valve body that engages and operates a hydraulically actuated device. A water boiling gas passage communicating with the downstream side of the valve body of the water boiling gas chamber, a pilot gas passage and a bath gas passage communicating with the gas tank are provided in the housing, and each gas passage opening surface of the housing is provided with Connect one end of the gas passage selection member that opens the pilot gas passage, boiling gas passage, and bath gas passage through packing, and connect the other end of the gas passage selection member to the manifold with a pair of left and right gas governors through packing. The water boiling gas passage and the bath gas passage, which are removably connected by screws and opened in the casing, are a passage spanning the first and second quadrants of the X-Y coordinate axis centered on the pilot gas passage; The gas passage selection member has gas passages formed in the first and third quadrants of an X-Y coordinate axis centered on the pilot gas passage. The second and fourth quadrants are equipped with right and left gas passages, and by rearranging the left and right gas passage selection members, it is possible to supply gas to the manifold for water boiling and for bathing. It is characterized by being able to replace the inlet.

[Effect]

Since the present invention has the above-mentioned configuration, it can of course achieve the same effects as the earlier invention, but the casing also has one water boiling gas passage, one bath gas passage, and one pilot. Since it is only necessary to provide a gas passage, the space between the hydraulically responsive gas valve and the hydraulically actuated device can be shortened and the size can be made that much smaller.Also, although the nozzle tip is attached to the manifold, when replacing the nozzle tip, it is possible to select the gas passage. Since only the manifold with the gas governor can be removed by simply removing the screws connecting the members and the gas governor, the gas type conversion operation can be performed quickly and easily.

〔Example〕

Hereinafter, one embodiment of the present invention will be described based on FIGS. 1 to 10.

The present invention is an improvement of the water pressure responsive gas valve a' in the schematic configuration diagram of a bathtub with hot water supply shown in FIG. The same parts as shown in FIG. 11 are indicated by the same reference numerals.

Fig. 1 is a schematic front view of the hydraulically responsive gas valve of the present invention, Fig. 2 is a plan view thereof, Fig. 3 is a side view seen from direction E in Fig. 1, and Fig. 4 is a schematic front view of the hydraulically responsive gas valve of the present invention.
D' sectional view, FIG. 5 is a sectional view similar to FIG. 4 when the right gas passage selection member is used, FIG. 6 is an A-A' sectional view of FIGS. The figure is a cross-sectional view taken along line B-B' in Figures 2 and 9, Figure 8 is a cross-sectional view taken along line C-C' in Figures 2 and 9, and Figure 9 is a hydraulically responsive gas valve casing of the left gas passage selection member. FIG. 10 is a plan view of the connecting surface of the right gas passage selection member.

In these figures, reference numeral 1 denotes a housing for a hydraulically responsive gas valve a of the present invention, and a well-known gas tank 2 and a hydraulically actuated device 3 are airtightly attached to the housing 1 via packings 5 and 6, respectively. 1a
is a water boiling gas chamber opened by penetrating the housing 1,
A valve hole portion 1b is formed approximately in the middle of the water boiling gas chamber, and a water boiling gas passage 1c is provided at approximately the center of the water boiling gas chamber 1a downstream of the valve hole portion 1b and communicating therewith orthogonally. Furthermore, a pilot gas passage 1e and a bath gas passage 1d communicating with an upstream gas tank are opened in the housing 1. Note that the water boiling gas passage 1c and the bath gas passage 1d are located on the first axis of the X-Y coordinate axis centered on the pilot gas passage 1e.
It is composed of a passage that spans the quadrant and the second quadrant, and a passage that spans the third and fourth quadrant.

1f is a stopper protruding from the cylindrical wall surface of the proximal end of the water boiling gas chamber 1a; 8 is the water boiling gas chamber 1;
The valve body inserted into the valve hole 1b is configured to close the valve hole 1b under normal conditions by the bias of a spring 9. A washer 10 receives one end of the spring 9, and is in contact with the stopper 1f. Reference numeral 11 denotes a valve rod, one end of which is inserted into the valve body 8, and the other end is in contact with a diaphragm (not shown) of the hydraulic actuator 3.

In the present invention, each gas passage 1 of the housing 1
c, 1d, 1e, the gas inlet of the water heater governor, the gas inlet of the bath governor, and the pilot passage of the manifold 4 with a gas governor are connected by a gas passage selection member separate from the casing 1. Connect.

This gas passage selection member has a left side 13 shown in FIGS. 4 and 9, and a right side 14 shown in FIGS. 5 and 10, and one of them is selectively used. 4 and 6 to 8 show examples in which the left gas passage selection member 13 is used.

As shown in FIGS. 4 and 9, in the vertical direction, the left gas passage selection member 13 selects bath gas with the water boiling gas passage 13c in the first quadrant on the XY coordinate axis centered on the pilot gas passage 13e. The passages 13d are formed in the third quadrant, and in the horizontal direction, the water boiling gas passages 13
c communicates with one gas governor 4a, and the bath gas passage 13d communicates with the other gas governor 4b. That is, openings for the respective gas passages are formed in the flange portion 13a for connection to the casing 1 and the flange portion 13b for connection to the gas governor.

Further, as shown in FIGS. 5 and 10, the right gas passage selection member 14 has the following characteristics in the vertical direction:
In the XY coordinate axis centered on the pilot gas passage 14e, the boiling gas passage 14c is placed in the second quadrant,
The bath gas passages 14d are formed in the fourth quadrant, and in the horizontal direction, the water boiling gas passage 14c communicates with one gas governor 4b, and the bath gas passage 14d communicates with the other gas governor 4a. has been done.

Either the right gas passage selection member or the left gas passage selection member is used, for example, the left gas passage selection member 1
The flange portion 13a of 3 is brought into contact with the lower surface of the casing 1 through the packing 7 and fixed with screws 16, and the flange portion 13b is brought into contact with the gas governors 4a and 4b of the manifold through the packing 12,
They are removably connected by screws 15. Note that the gas passage selection members 13 and 14 and the gas governor 4a,
The connection with 4b is performed, for example, with three screws as shown in the figure.

Next, the operation of the water pressure responsive gas valve of the present invention when used in a bathtub with hot water supply will be explained.

First, when igniting, when the operating handle of the well-known gas tank 2 is rotated from the closed position to the predetermined ignition position, the gas flowing from the gas inlet of the gas tank 2 flows through the pilot gas passage 1e opened in the casing 1.
through the pilot gas passage 13e of the gas passage selection member 13 to the manifold 4 with a gas governor.
After the gas has flowed out, the gas is ejected from a pilot nozzle protruding from the manifold 4 with a gas governor to a pilot burner installed opposite thereto, which sucks the primary air and ignites the mixed gas flowing out from the flame hole using an appropriate ignition means (not shown). ) is ignited.

Next, when using the bath, rotate the operation handle of the gas cooker 2 to the bath position, and the gas will pass through the bath gas passage 1d, and the gas passage selection member 1
The mixed gas flows out through the bath gas passage 13d of No. 3 to one gas governor 4b of the manifold 4 with gas governor, and after being ejected from the bath nozzle, sucks primary air and flows out from the flame hole of the bath burner. Burn.

In addition, if you use a water heater, please use Gas Kotoku 2.
When the operation handle is turned to the boiling position, gas flows out into the boiling gas chamber 1a formed in the casing 1, but the valve body 8 closes the valve hole 1b by the bias of the spring 9. Manifold 4 with gas governor
This prevents gas from escaping. When you open the hot water tap in this state, the water pressure actuator 3 works and the spring 9
The valve holder 11 is moved against the bias of the gas passage selection member 13, and the valve body 8 also opens the valve hole 1b in conjunction with this, and the gas flows into the boiling water gas passage 1c. It passes through the gas passage 13c and flows out to the other gas governor 4a of the manifold 4 with a gas governor,
Gas is ejected from the water heating nozzle, and the water heating burner burns in the same way as the bath burner described above.

Generally, bathtubs require two types of bathtub water circulation pipes, left and right, depending on the construction of the bathroom and the placement of the bathtub due to the entrance and exit. In the present invention, if the hydraulic responsive gas valve a and the manifold 4 with gas governor are connected by the left gas passage selection member 13 shown in FIGS. 4 and 9,
In FIG. 1, the gas governor 4a for the right nozzle group of the manifold 4 with gas governor is for the water heater, and the gas governor 4b for the left nozzle group is for the bath. Next, when the hydraulic responsive gas valve a is connected to the manifold 4 with a gas governor using the right gas passage selection member 14 shown in FIGS. 5 and 10, the gas governor for the right nozzle group of the manifold 4 with a gas governor is 4a is for the bath, gas governor 4b is for the left nozzle group and water heater.

Further, when changing the type of gas to replace the nozzle chip installed in the manifold 4, the gas passage selection section 13 and the gas governor 4a,
Only the manifold 4 with the gas governor can be easily removed by simply removing the screws 15 connecting the gas governor 4b. The same applies to the right gas passage selection member.

[Effect of idea]

As described above, according to the present invention, the gas valve, the gas passage selection member, the manifold with a gas governor, and the hydraulic actuation device are integrally attached to the hydraulically responsive gas valve, so that the same effects as the prior invention can be achieved. Of course, in addition, when changing the type of gas, the gas governor and manifold can be easily removed by simply removing the screws connecting the gas passage selection section and the gas governor, thereby shortening the conversion work time. Moreover, it has the effect of being able to be further miniaturized than the one devised in the prior application.

[Brief explanation of the drawing]

Fig. 1 is a schematic front view showing the hydraulically responsive gas valve of the present invention, Fig. 2 is a plan view thereof, and Fig. 3 is a schematic front view showing the hydraulically responsive gas valve of the present invention.
A side view seen from direction E in the figure, Figure 4 is D in Figure 1.
-D' sectional view, Figure 5 is the same sectional view as Figure 4 when the right gas passage selection member is used, Figure 6 is the A-A' sectional view of Figure 2, and Figure 7 is the same sectional view as Figure 4 when the right gas passage selection member is used. B- in Figure 2
B' cross-sectional view, Figure 8 is a C-C' cross-sectional view of Figure 2, Figure 9
The figure is a plan view of the coupling surface of the left gas passage selection member with the hydraulically responsive gas valve casing, and FIG. 10 is a plan view of the coupling surface of the right gas passage selection member. 1st
FIG. 1 is a general explanatory diagram of a hydraulically responsive gas valve used in a bathtub with hot water supply, and FIGS. 12 and 13 are schematic diagrams of the hydraulically responsive gas valve according to the prior application. 1... Water pressure responsive gas valve casing, 1a... Water boiling gas chamber, 1b... Valve hole, 1c... Water boiling gas passage, 1d... Bath gas passage, 1e... Pilot gas passage, 2... Gas cooker, 3...Hydraulic actuator, 4...Manifold with gas governor, 5,
6,7,12...Packing, 8...Valve body, 9...
... Spring, 10 ... Washer, 11 ... Bento, 1
3, 14...Gas passage selection member, 13c, 14c
... Water boiling gas passage, 13d, 14d... Bath gas passage, 13e, 14e... Pilot gas passage.

Claims (1)

[Scope of utility model registration request] The housing of the water pressure responsive gas valve is provided with a boiling gas chamber having a valve body that communicates with the gas tank on the upstream side and engages with the hydraulic actuation device, and the housing is provided with a water boiling gas chamber downstream of the valve body of the water boiling gas chamber. A water boiling gas passage communicating with the side, a pilot gas passage and a bath gas passage communicating with the gas tank are opened, and a pilot gas passage, a water boiling gas passage and a bath gas passage are provided on the opening surface of each of the gas passages of the casing. One end of the opened gas passage selection member is connected through packing, and the other end of the gas passage selection member is removably connected to a pair of left and right gas governor manifolds via packing, and the gas passage selection member is opened in the casing. The boiling water gas passage and the bath gas passage are divided into a passage spanning the first and second quadrants of the X-Y coordinate axis centered on the pilot gas passage, and a passage spanning the third and fourth quadrants.
The gas passage selection member has a gas passage formed in a first quadrant and a third quadrant of an X-Y coordinate axis centered on the pilot gas passage; The quadrant and the fourth quadrant are equipped with right and left gas passages, and by rearranging the left and right gas passage selection members, gas inflow ports for water boiling and bathing can be created into the manifold. A water pressure-responsive gas valve for a bathtub with hot water supply, characterized in that the valve can be replaced.