JPH0138432Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] This invention connects a water heater that supplies heated hot water using water supply pressure to a mixing faucet in an instantaneous water heater, a storage type water heater, etc. The hot water supply pipe is provided with a hot water side exposed connection pipe located between the mixing faucet and the wall to which it is attached, and the water supply pipe connected to the mixing faucet is provided with a hot water side exposed connection pipe located between the mixing faucet and the wall. The present invention relates to an improvement in a water heater equipped with a water-side exposed connection pipe located at the water side and a timer valve that automatically stops the discharge of mixed water from the mixing faucet at a set time.

[Conventional technology]

Conventionally, in the water heater described above, a timer valve 13 has been attached to the tip of the discharge pipe 1 of the mixing faucet 2, as shown in FIGS. 5 and 6.

In the figure, 7' is an instantaneous water heater, and 7 is a hot water storage type water heater.

H is a hot water supply pipe connecting the mixing faucet 2 and the water heaters 7, 7', and C is a water supply pipe.

3 is a hot water side exposed connection pipe located between the mixing faucet 2 and the wall (W) to which it is attached;
4 is a similar water side exposed connection pipe.

[Problem that the invention attempts to solve]

Although the conventional configuration described above has the advantage that the timer valve 13 can be operated near the mixing faucet 2, since the timer valve 13 is protruding from the mixed water outlet, the area around the mixing faucet 2 is compact. In addition, there were problems in that the timer valve 13 became a hindrance, making it difficult to use the discharged mixed water.

Furthermore, a water supply pressure reducing valve 11 and a safety valve 1 are installed in the water heater.
0, when the timer valve 13 stops discharging mixed water, the timer valve 13 closes off the discharge pipe 1 of the mixing faucet 2, so the water side is exposed. The high water supply pressure from the water supply pipe C applied to the internal flow path of the mixing faucet 2 from the connecting pipe 4 travels backwards from the hot water side exposed connection pipe 3 to the hot water supply pipe H, and is originally reduced by the water supply pressure reducing valve 11. This also extends to the low-pressure hot water storage tank 6, which only has a pressure-resistant configuration for low water supply pressures, which causes problems such as the safety valve 10 operating unexpectedly and adversely affecting the tank configuration.

The purpose of this invention is to rationally improve the arrangement of the timer valve and the water supply configuration to the water heater, to make the area around the mixing faucet more compact while maintaining the timer valve's ability to stop the discharge of mixed water. , to improve its usability.

[Means to solve the problem]

The characteristic configuration of the water heater according to the present invention includes a timer valve and a water distribution device for water supply to the water heater.
They are arranged in order from the upstream side of the water supply and are interposed in the water-side exposed connection pipes located between the wall and the mixing faucet, and their functions and effects are as follows.

[Effect]

In other words, by utilizing the fact that the water heater is a type that supplies hot water using the water supply pressure to the water heater, a water distribution device for water supply to the water heater is inserted downstream of the timer valve into the water side exposed connection pipe that serves as the water supply pipe. As shown in FIG. At the same time, the water supply from the water divider 12 to the water heater 7 is also stopped, and the water supply from the water heater 7 to the mixing faucet 2 is also stopped at the same time. The mixed water discharge stop function obtained by this method is equivalent to that of the conventional method.

Moreover, since the timer valve 13 is installed in the water-side exposed connection pipe 4 located between the wall (W) and the mixing faucet 2, the timer valve 13 can be conveniently operated near the mixing faucet 2. Although the timer valve 13 is the same as the conventional one, the timer valve 13 can be positioned compactly between the wall (W) and the mixing faucet 2, and the timer valve 1
The drawbacks of the conventional method, such as No. 3 impeding the use of discharged mixed water, can also be overcome.

Furthermore, the water stop by the timer valve 13 is performed upstream of the water supply as seen from the mixing faucet 2, and further upstream of the water supply from the water supply distribution device 12 for the water heater 7, As mentioned above, in addition to stopping the water supply from the water distribution device 12 to the water heater 7 in order to stop the water supply from the water heater 7 to the mixing faucet 2,
Since the water supply from the water side exposed connection pipe 4 to the mixing faucet 2 is stopped, when the mixed water discharge is stopped by the timer valve 13, the high water supply pressure from the water supply pipe C is applied to the water side exposed connection pipe 4 and the mixing faucet 2. This prevents the hot water from reaching the low-pressure hot water storage tank 6 in the hot water storage type water heater 7 while going backwards from the hot water side exposed connection pipe 3 to the hot water supply pipe H through the internal flow path. Trouble in the hot water storage type water heater 7 caused by the backtracking of the hot water supply pipe with high water supply pressure is also reliably prevented.

[Effect of idea]

In summary, according to the present invention, the mixing faucet discharge stop function using the timer valve can be obtained in the same way as before, and the convenience of being able to operate the timer valve near the mixing faucet can also be obtained as before. However, as a unique effect, the area around the mixer faucet can be made compact, the mixed water discharged from the mixer faucet can be used without interfering with the timer valve, and furthermore, the water heater can be replaced with a storage type water heater. The present inventors have achieved an extremely significant practical advantage in that the hot water storage type water heater can function well without any trouble even when the water heater is used.

〔Example〕

Next, an embodiment will be described based on FIGS. 1 to 3.

A mixing faucet 2 equipped with a hot water side valve (HV) and a water side valve (CV) connected in parallel to the discharge pipe 1, a hot water side exposed connection pipe 3 as part of the hot water supply pipe H for the mixed faucet 2, and , attached to the wall (W) via the water side exposed connection pipe 4 as part of the water supply pipe C,
A hot water storage type water heater 7 that supplies hot water heated by a burner 5 and stored in a closed hot water storage tank 6 at the water supply pressure to the tank 6 and the hot water side exposed connection pipe 3 are connected via a concealed hot water supply piping 8. In addition, a concealed water supply pipe 9 for supplying city water and the water side exposed connection pipe 4
A hot water supply device is constructed in which hot water and water are mixed at an appropriate ratio and discharged by adjusting the water side valve (CV) and hot water side bubble (HV).

In the figure, 10 is a safety valve, and 11 is a pressure reducing check valve that reduces the water supply pressure to the hot water storage tank 6 to a predetermined value below the tank withstand pressure.

On the other hand, the water supply distribution device 12 for the water heater 7 is
The water divider 12 is attached to the casing 13A of the timer valve 13 than the valve body 13B of the timer valve 13.
The timer valve 1 is arranged and integrally formed so that it is on the downstream side of the water supply, and the one side discharge port 12A of the water distribution device 12 is connected to the mixing faucet 2.
3 is inserted into the water side exposed connection pipe 4, and the other side discharge port 12B of the water distribution device 12 is connected to the water heater 7 via the exposed flexible pipe 14 and the hidden water supply pipe 15 for the water heater. After connecting to the water supply port 6A, the water supply is stopped by the timer valve 13, and the mixing faucet 2 is turned on.
The water supply to the water heater 7 and the water supply to the water heater 7 are simultaneously stopped, thereby automatically stopping the mixed water discharge from the discharge pipe 1 of the mixing faucet 2 at a set time. .

Reference numeral 16 in the figure is a time setting dial for the timer valve 13, and during the time set by this dial, the valve body operating pin 17 is in the retracted state against the spring 19 due to the action of the internal rotating cam mechanism. The diaphragm valve body 20 is held open by the water supply pressure by the retracted holding. Also, when the set time has elapsed, the pin 17 is removed by the cam mechanism.
The pin 17 protrudes due to the biasing force of the spring 19, and the diaphragm valve body 20 is accordingly closed, and the pilot hole 20A formed in the diaphragm valve body 20 is closed and the orifice small hole is closed. The diaphragm valve body 20 is held in a closed state by the water supply pressure from 20B.

[Another example]

Next, another embodiment will be explained with reference to FIG.

Concealed water supply pipes 9 are branched and connected in parallel to the exposed water side connection pipes 4 of multiple mixing faucets 2 and 2', and the hot water supply ports of the instant water heaters 7' are connected to the exposed water side of each mixing faucet 2 and 2'. They are branched and connected to the connecting pipe 3 in parallel via a moderate hot water supply pipe 8.

And one of those mixer taps 2, 2' 2
A timer valve 13 and a separate water distribution device 12 are interposed in the water side exposed connection pipe 4 of the water supply device 1 in order from the upstream side of the water supply.
The branch side discharge port 12B of the second water heater 7' and the water supply port of the instantaneous water heater 7' are connected via the water heater water supply pipe 14', and the mixing faucet 2 is equipped with a timer valve 13.
In this case, the timer valve 13 automatically stops the discharge of mixed water at the set time, and on the other hand, the timer valve 13 automatically stops only hot water supply at the set time in other mixing faucets 2'. It is configured.

In addition, in the configuration of the above-mentioned alternative embodiment, by branching the water supply pipe 9 for the mixing faucets 2' to which no timer valve 13 is attached from the downstream side of the timer valve 13, one timer valve 13 can be connected to all the mixing faucets 2. , 2' can be used to automatically stop the mixed water discharge.

The timer valve 13 used in the present invention can be of various conventionally known operating types.

The specific structure of the water heater water distribution device 12 located downstream of the timer valve 13 can be improved in various ways, either by being built into the timer valve 13 or by being a separate structure. It is.

The timer valve 13 and the specific shape of the water-side exposed connection pipe 4 that interposes the water distribution device 12 and the mounting structure for the mixed faucet 2 can be modified in various ways, and the timer valve interposed therein can be modified in various ways. In the type in which water is supplied to the water heaters 7, 7' from the downstream side of the water heater 13, various improvements can be made to the piping configuration of the entire device.

The water heaters 7, 7' used in the water heater of the present invention are as follows:
Various types of water heaters can be used as long as they supply hot water at a corresponding water supply pressure.

[Brief explanation of the drawing]

1 to 3 show embodiments of the present invention,
FIG. 1 is an overall system diagram, FIG. 2 is a partially cutaway enlarged view of essential parts, and FIG. 3 is a schematic sectional view of a timer valve. FIG. 4 is a schematic system diagram showing another embodiment of the present invention. FIG. 5 and FIG. 6 are schematic diagrams showing conventional examples, respectively. 2...Mixing faucet, 3...Hot water side exposed connection pipe, 4...
...Water side exposed connection pipe, 7,7'...Water heater, 12...
...Water divider, 13...Timer valve, 13A...
Casing, H...Hot water supply pipe, C...Water supply pipe.

Claims (1)

[Scope of claim for utility model registration] Water heater 7 that supplies heated hot water using water supply pressure;
7' and the water supply pipe H connecting the mixing faucet 2,
A hot water side exposed connection pipe 3 located between the mixing faucet 2 and the wall (W) to which it is attached is provided, and the water supply pipe C connected to the mixing faucet 2 is provided with a connection pipe between the mixing faucet 2 and the wall (W). (W), and a water heater equipped with a timer valve 13 that automatically stops the discharge of mixed water from the mixing faucet 2 at a set time, the timer valve 13 and the water heater 7,
A water heater in which water supply distribution devices 12 for water supply 7' are arranged in order from the water supply upstream side and are interposed in the water side exposed connection pipe 4. Casing 13A of the timer valve 13
The water supply device according to claim 1, wherein the water distribution device 12 for water supply is integrally formed in the water supply device.