JPH10281338A - Faucet device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable a device to constitute a faucet with relatively low pressure proof performance without generating a water hammer in the faucet itself while a water hammer pressure generated in the other is prevented from giving a bad influence to the faucet. SOLUTION: A faucet 11 is constituted by a faucet part 12 and a pressure reducing means 13 arranged in the upstream of the faucet part 12. The faucet part 12 is constituted by a valve plug 2, operating part 3 and a water delivery part 4. The pressure reducing means 13 is constituted by a pressure regulating means 14 in the upstream and a water hammer reducing means 15 in the downstream. In the case that a water hammer pressure generated in the other part is transmitted to the faucet 11 through in a pipe 6, this pressure is absorbed by the pressure regulating means 14. On the other hand, a water hammer pressure generated in the faucet 11 itself is absorbed by the water hammer reducing means 15. In this way, a pressure of water in the faucet 11 can be suppressed to a fixed value or less.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a faucet device used for a hot and cold water mixing faucet, a single faucet, and the like, and more particularly to a faucet device capable of reducing water pressure applied to a faucet.

[0002]

2. Description of the Related Art FIG. 26 shows a conventional faucet device. This faucet device includes a valve body 2, an operation section 3 of the valve body 2,
A water faucet 1 having a water discharge section 4 for discharging water from the valve body 2. The water faucet 1 is connected to a pipe 6 via a water supply pipe 5. There is no pressure regulating section between the two. For this reason, the pressure in the pipe 6 acts on the faucet 1 at the time of water stoppage, and the pressure reduced by the pressure loss due to the flow from the pressure in the pipe 6 acts at the time of water discharge. In addition, not only the water hammer pressure generated by itself, but also the water hammer pressure generated by another faucet 1 or the like connected by the pipe 6 is received. For this reason, it is necessary for these to have a withstand voltage performance without any abnormality.

In a conventional faucet and plumbing system in a house, as shown in FIG. 27, a plurality of faucets 1 are simply connected via a plumbing 6, and a water hammer reducing means is provided in the system. No pressure regulating means, etc. are provided. For this reason, performance that can withstand both high water supply pressure and water hammer pressure is required.

[0004] In consideration of these, the rules of the Japan Water Supply Association stipulate that the water pressure should be 17.5 kgf / cm ² when the faucet is shut off and there is no leakage and no deformation or abnormality of parts. Standards are set.

[0005] A faucet used directly connected to a water pipe must meet this water pressure resistance standard. Even when water is supplied using an elevated water tank or the like and is not directly connected to a water pipe, a faucet that substantially conforms to the above-described standard is often used from the viewpoint of quality control on the manufacturer side.

Therefore, most of the faucet devices currently sold on the market have a water pressure resistance of 17.5 kgf / cm ² .

Conventionally, a bronze casting has been used as the main body of the faucet in order to obtain the water pressure resistance and the corrosion resistance. However, the faucet body made of the bronze casting is often used for processing and inspection. Labor was required, and this was a factor in price increases.

Further, in order to satisfy the required high water pressure resistance performance, the structure of the faucet valve body is also restricted, and a great amount of labor is required to achieve both the water pressure resistance performance and the operability of the water tap.
This was a factor that increased the price of the faucet valve.

However, there are many examples of the faucet device having such high water pressure resistance, which is actually used at a lower water supply pressure, and the water faucet employed to satisfy the high water pressure resistance performance. The structure places an excessive burden on some users,
It contained structural parts that were practically wasted.

[0010]

For the above reasons, the water pressure resistance of a faucet is designed to be redundant depending on the installation location and the water supply pressure, and a piping system for supplying water to the faucet and the faucet is provided. Until now, there were many examples of wasted materials, structures, and construction.

As a result, each component of the faucet or system is heavy, large, poor in workability and transportability, and has a small degree of freedom in appearance design.

The present invention has been made in view of the above points, and is intended to reduce the required water pressure resistance of a system including a faucet or a pipe for supplying water to a plurality of faucets by a pressure reducing means. It is an object of the present invention to provide a faucet device that can greatly reduce costs and make effective use of resources by making the materials, structures, construction, etc. suitable.

It is a further object of the present invention to provide a water faucet device capable of reducing water pressure applied to a water faucet on-off valve to reduce water hammer and cavitation.

Another object of the present invention is to provide a water faucet device capable of effectively preventing the occurrence of water hammer and reducing the size of the water faucet by reducing the size of the structure.

Another object of the present invention is to prevent the water hammer pressure generated elsewhere from adversely affecting the water faucet, and to prevent the water hammer from being generated by the water faucet itself.
It is an object of the present invention to provide a faucet device capable of forming a faucet with relatively low pressure resistance.

Another object of the present invention is to effectively prevent water hammer even when the water supply pressure to the faucet is extremely high, and furthermore, to control the water supply between the high and low water supply areas. It is an object of the present invention to provide a water faucet device in which the faucet has the same structure and cost can be reduced.

Another object of the present invention is to reduce the propagation of water hammer in the vicinity of the on-off valve by absorbing the water hammer pressure, and to dispose the water hammer reducing means in an extra space downstream of the on-off valve. It is another object of the present invention to provide a water faucet device that can reduce the rising dimension of the water faucet.

Another object of the present invention is to prevent the occurrence of a water hammer with only a water faucet without the need for other external parts even when the water supply pressure to the water faucet is high. It is an object of the present invention to provide a faucet device capable of reducing the size of a faucet.

Another object of the present invention is to provide a faucet apparatus capable of reducing the adverse effect of a water hammer on a pipe for supplying water to the faucet.

Another object of the present invention is to provide a water faucet device capable of absorbing a water hammer generated upstream of a pressure adjusting means with a simple structure.

Another object of the present invention is to provide a water faucet device which can protect a water purifier from a water hammer generated by another water source or a water hammer generated by itself even if the water purifier is incorporated in the water faucet. It is in.

It is another object of the present invention to provide a water faucet apparatus which can obtain a hot and cold water mixing faucet which does not require a wasteful heat source and water and can restrict the time of waste water which has been several tens of seconds in the past. .

Another object of the present invention is to provide a faucet apparatus which can reduce the cost by sharing the pressure adjusting means.

Another object of the present invention is to provide a water faucet device which can set a pressure regulation value in accordance with an appropriate flow rate of a water faucet, enables water saving and effective flow distribution, and can reduce water hammer. It is in.

Another object of the present invention is to provide a faucet apparatus which can reduce the cost by sharing the pressure adjusting means and the water purifier.

Another object of the present invention is to provide a faucet apparatus which can obtain a low-cost hot / water mixer tap.

It is another object of the present invention to provide a faucet apparatus which can provide a low-cost on-off valve and can prevent cavitation and noise and erosion caused by the cavitation.

Another object of the present invention is to provide a faucet apparatus which can prevent corrosion of a spouting section and the like and can reduce the cost.

Another object of the present invention is to provide a water faucet device in which a water hammer reducing means can be incorporated in a water faucet without increasing the size of the water faucet, and the flow rate of water supplied from a water discharge part can be further stabilized. To provide.

Still another object of the present invention is to provide a water faucet device that can absorb both small and large water hammers, and in the case of small water hammers, water is not discharged from the water discharge section. is there.

[0031]

SUMMARY OF THE INVENTION The present inventors have found that a water hammer is generated in a portion where the movement of a fluid is interrupted first, and that portion is in a water passage upstream of a faucet opening / closing valve. Therefore, focusing on the position where the water hammer can be most effectively absorbed in the water passage on the upstream side of the faucet on / off valve, a pressure reducing means such as a water hammer reducing means is disposed at this position.

As a result, the influence of the water hammer can be minimized by absorbing the water hammer at the generation position and preventing the water hammer from propagating to other parts.

Therefore, in order to achieve the above object, the present invention provides:
In a water faucet device having an on-off valve, an operation unit for operating the on-off valve, and a water discharge unit for discharging water from the on-off valve, a water pressure is reduced in a water passage upstream of the on-off valve. The pressure reducing means is provided. Thus, the water pressure applied to the on-off valve of the faucet can be reduced, and the water hammer and cavitation can be reduced.

The present invention is also characterized in that the pressure reducing means is constituted by a water hammer reducing means for opening a valve by increasing the water pressure and bypassing the on-off valve to guide water supply to the water discharge section. As a result, a sufficient effect can be obtained with a small water hammer reducing means.

The present invention is also characterized in that the pressure reducing means is constituted by pressure adjusting means for adjusting the pressure downstream of the throttle valve by narrowing the throttle valve as the water pressure rises. Thus, it is possible to prevent the water hammer generated in other places from adversely affecting the faucet.

The present invention is also characterized in that the pressure reducing means comprises a water hammer reducing means and a pressure adjusting means. As a result, it is possible to reduce both the water hammer generated by others and the water hammer generated by itself.

According to the present invention, the pressure reducing means is constituted by sequentially arranging the pressure adjusting means on the upstream side and the water hammer reducing means on the downstream side in the water passage, and is incorporated in the faucet. Features. Thus, it is possible to reduce the water hammer without the need for the work on the pipe side for supplying water to the faucet.

According to the present invention, the pressure adjusting means is constituted by an upstream primary pressure adjusting means and a downstream secondary pressure adjusting means, and only the secondary pressure adjusting means is incorporated in the faucet. It is characterized by. This makes it possible to simplify the structure of the faucet and reduce costs, and in areas where the water supply pressure to the faucet is high, adding a primary pressure regulating means effectively prevents water hammer It is possible to do.

According to the present invention, the pressure reducing means is constituted by a pressure adjusting means, and a water hammer reducing means connected to a water passage downstream of the pressure adjusting means via a bypass, and is incorporated in the faucet. It is characterized by the following. This makes it possible to absorb the water hammer pressure in the immediate vicinity of the on-off valve and reduce its propagation to other parts. In addition, the water hammer reducing means is arranged in the extra space on the downstream side of the on-off valve to raise the faucet. The size can be reduced.

According to the present invention, the pressure reducing means comprises a primary pressure adjusting means, a water hammer reducing means and a secondary pressure adjusting means connected to a water passage downstream of the primary pressure adjusting means via a bypass. And is incorporated in a faucet. Thus, even when the water supply pressure to the faucet is high, it is possible to prevent the occurrence of a water hammer only with the faucet without requiring other external parts and the like, and furthermore, it is possible to reduce the size of the faucet. It becomes possible.

According to the present invention, the pressure reducing means is constituted by the pressure adjusting means and the water hammer reducing means disposed on the upstream and downstream sides of the pressure adjusting means, respectively, and is incorporated in the faucet. It is characterized by the following. This makes it possible to reduce the adverse effect of the water hammer generated by the pressure adjusting means on the pipe supplying water to the faucet.

The present invention is also characterized in that the water hammer reducing means is communicated with the upstream side of the pressure adjusting means via a bypass. Thus, the water hammer generated on the upstream side of the pressure adjusting means can be absorbed by a simple structure.

The present invention is also characterized in that a water purifier is provided between the pressure adjusting means and the water hammer reducing means. And thereby, it becomes possible to protect the water purifier from the water hammer generated by the other or the water hammer generated by the faucet itself.

According to the present invention, the opening / closing valve is constituted by a water supply passage branching in the faucet and a hot water mixing valve to which the downstream end of the hot water supply passage is connected respectively, and the pressure reducing means is provided by the water supply passage and the hot water supply passage. The throttle valve provided on the upstream side of the branch portion is throttled in accordance with the rise of the water pressure to adjust the pressure downstream of the throttle valve, and the valve is opened in the water supply channel and the hot water supply channel by the increase of the water pressure. And a water hammer reducing means for guiding the water supply to the water discharge section by bypassing the on-off valve, and a heating unit for heating the water supply is provided upstream of the water hammer reducing means in the hot water supply path. .

This eliminates the need for a wasteful heat source and water, and saves the time of waste water, which was several tens of seconds in the past, and also stabilizes the temperature of the mixed water by stabilizing the remaining amount. It becomes possible. Furthermore, the water pressure resistance of the heating unit can be reduced, which can contribute to cost reduction.

The present invention also relates to a faucet device having a faucet having an on-off valve, an operating part for operating the on-off valve, and a spout for discharging water from the on-off valve. On the upstream side of the valve, there is provided a water hammer reducing means for opening the valve due to an increase in the water pressure and bypassing the on-off valve to guide the water supply to the water discharge section. It is characterized in that a pressure adjusting means for adjusting the pressure downstream of the throttle valve is provided by narrowing the throttle valve accompanying it. As a result, the pressure adjusting means can be shared, and the cost of the system can be reduced.

According to the present invention, a secondary pressure adjusting means for adjusting a pressure downstream of the water hammer reducing means by adjusting a throttle valve with an increase in water pressure is provided upstream of the water hammer reducing means in the faucet. It is characterized by having done. This makes it possible to set the pressure adjustment value for each faucet according to the appropriate flow rate of the faucet, enabling water saving and effective flow distribution, and effectively reducing water hammer. Becomes

The present invention is also characterized in that a water purifier is provided between a branch portion of the pipe to a plurality of faucets and the pressure adjusting means. Thus, the pressure adjusting means and the water purifier can be shared, and the cost can be reduced.

The present invention is also characterized in that the pressure adjusting means is provided as a common product of a plurality of faucets on the upstream side of a branch of the pipe to the plurality of faucets. This makes it possible to obtain a low-cost hot and cold water mixing system.

According to the present invention, the on-off valve is constituted by a flexible tube having elasticity, and the flexible tube is pressed from the outer surface side by the operation of the operating portion to change the cross-sectional area of the flow channel. It is characterized by. As a result, a low-cost on-off valve can be obtained, and the flow path changes smoothly, so that it is possible to prevent the occurrence of cavitation and the occurrence of noise and erosion due to the cavitation.

The present invention is also characterized in that the water passage and the pressure-resistant portion of the faucet are formed of a synthetic resin material.
Thus, it is possible to prevent corrosion of the water discharge section and the like, and it is possible to improve mass productivity and reduce costs by reducing material costs.

According to the present invention, the on-off valve is constituted by a flexible tube which is elastically deformed by being pressed from the outer surface side by operating the operation portion and whose cross-sectional area of the flow passage changes, and the pressure reducing means is provided on the upstream side. Pressure adjusting means, and a downstream water hammer reducing means, and the water hammer reducing means,
It is characterized by comprising an elastic body whose volume is reduced by an increase in water pressure. As a result, the on-off valve and the water hammer reducing means can be manufactured at low cost.

According to the present invention, the water hammer reducing means is provided in a container-like body slidably disposed in an annular valve seat provided in the water discharge portion, and the volume is reduced by an increase in water pressure provided in the body. And a connecting pipe connecting the inside of the main body and the bypass passage. The main body is provided with a valve portion which is attached to and detached from the valve seat from the downstream side. The portion is urged in a direction to be seated on the valve seat, whereby the main body constitutes the pressure adjusting means. This makes it possible to incorporate the water hammer reducing means into the water faucet without increasing the size of the water faucet, and to further stabilize the flow rate of water supplied from the water discharge part.

The present invention further provides a water hammer reducing means that includes a valve body that slides in and out of a valve seat by sliding in a valve box, a spring that urges the valve body in a seating direction, and that the valve body is driven by water pressure. And a drainage channel that is opened when sliding by a predetermined amount in the unseating direction and guides the water supply in the valve box to the water discharge section. And for a small water hammer,
The force is absorbed only by the volume expansion accompanying the sliding of the valve body, while the power is absorbed by the water supply in the valve box through the drainage channel to the water discharge part for a large water hammer. . Therefore, in the case of a small water hammer,
Water is not discharged from the water discharge section, and it is not misunderstood that the faucet is leaking.

[0055]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a faucet device according to a first embodiment of the present invention. The faucet device includes a faucet portion 12 and a pressure reducing means 13 provided on the upstream side of the faucet portion 12. The water faucet 11 is connected to a pipe 6 such as a water pipe via a water supply pipe 5.

The faucet section 12 is composed of a valve body 2, an operating section 3 and a water discharge section 4 similar to the conventional faucet 1, while the pressure reducing means 13 arranged on the upstream side is provided with an upstream side. It comprises pressure adjusting means 14 and water hammer reducing means 15 on the downstream side. The pressure adjusting means 14 keeps the water pressure acting on the mechanism downstream of itself at a constant value or less in any of the water stoppage and water discharge, and the water hammer pressure generated in other places propagates in the pipe 6. Even if you go, faucet 1
1 is not adversely affected, and the flow rate (flow velocity) of the supply water supplied to the faucet 11 can be limited to an appropriate range. Further, the water hammer reducing means 15 can prevent the occurrence of water hammer by absorbing the pressure rise generated in the faucet 11.

FIG. 2 shows a specific example of the faucet 11. The faucet 11 is entirely covered with a metal cover 16 and has a valve body 2, an operating part 3, a water discharge Part 4,
The pressure adjusting means 14 and the water hammer reducing means 15 are incorporated.

The valve body 2 is composed of a main body 17 made of synthetic resin and a tubular opening / closing valve 18 attached to the main body 17. The opening / closing valve 18 is made of rubber, elastomer material, polybutene, polyethylene or the like. Pressing from the outer surface side by the operating section 3 composed of the lever handle 19 and the bush 20 makes the elastic section deform and the cross-sectional area of the flow path changes.

The water passage 21 is located upstream of the on-off valve 18.
The water supply pipe 5 is connected to the water supply pipe 5, and a water discharge pipe 23 formed of the same material as the open / close valve 18 and constituting the water discharge section 4 is connected to the downstream side of the open / close valve 18.

As shown in FIG. 3, the pressure adjusting means 14 comprises a main body 24 made of synthetic resin and a control valve 25 incorporated in the main body 24.
It has a piston valve 27 disposed so that the front end portion 27a faces the water passage 21 formed therein so as to be able to move forward and backward.

A valve body 28 is provided in the vicinity of the distal end 27a of the piston valve 27, and a valve seat 24a is formed at a position on the main body 24 side facing the valve body 28. An aperture portion 26 is formed at the bottom.

A cylinder chamber 29 is formed in the main body 24 on the rear side of the piston valve 27, and a piston portion 30 formed in the cylinder chamber 29 behind the piston valve 27.
Are slidably inserted. In the cylinder chamber 29, the piston part 27 is in contact with the piston part 30, and the piston valve 27 is
A spring 33 biasing in a direction away from a is provided. A communication passage 31 penetrating in the axial direction is formed in the piston valve 27, and the communication passage 31 communicates the water passage 21 with a pressure chamber 32 formed on the back side of the piston portion 30. .

Next, the operation of the pressure adjusting means 14 having such a configuration will be described. Water pipe 2 from water pipe 5
The feedwater that has flowed into 1 flows through the throttle section 26 and further flows downstream to the faucet valve body 2 side. The water pressure after passing through the throttle portion 26 is transmitted to the pressure chamber 32 through the communication passage 31,
Acts on the piston part 30 of the piston valve 27.

The position of the piston valve 27 is
The movement is adjusted by the relationship between the internal water pressure and the urging force of the spring 33. That is, when the water pressure in the water passage 21 becomes higher than the set pressure, the pressure is transmitted to the pressure chamber 32 through the communication passage 31 and acts on the piston portion 30 to move the piston valve 27 rightward in the drawing. As a result, the distance between the valve body 28 and the valve seat 24a is reduced, and
Is narrowed, and the water pressure in the water passage 21 is reduced.

On the other hand, if the water pressure in the water passage 21 becomes lower than the set pressure, the water pressure in the pressure chamber 32 decreases through the communication passage 31, and the piston valve 27 moves leftward in the figure due to the urging force of the spring 33. I do. As a result, the distance between the valve element 28 and the valve seat 24a increases, and the throttle portion 26 is opened, whereby the pressure drop by the throttle portion 26 is reduced, and the water pressure in the water passage 21 is increased again.

When the faucet valve body 2 disposed downstream of the water passage 21 is closed, the flow path resistance of each part in the water faucet decreases, so that the water pressure in the water passage 21 gradually increases. Also in this case, for the same reason as described above, the piston valve 27 moves rightward in the drawing, and the passage of the throttle unit 26 is throttled. When the faucet valve body 2 is further throttled, the throttle valve 26 is throttled by the corresponding movement of the piston valve 27.

When the faucet valve body 2 is finally closed, the valve body 28 of the piston valve 27 is seated on the valve seat 24a, and the water passage 21 is maintained at the water pressure just before the faucet valve body is closed. You.

On the other hand, as shown in FIG. 2, the water hammer reducing means 15 includes a main body 34 made of a synthetic resin,
The elastic foam 35 attached to the water passage 21 in the inside 4
It is composed of This water hammer reducing means 15
Is designed to absorb the pressure increase in the water passage 21 when the on-off valve 18 is fully closed by reducing the volume of the elastic foam 35, thereby preventing the occurrence of water hammer.

In FIG. 2, reference numeral 36 denotes the faucet 11.
Reference numeral 37 denotes a faucet fixing bolt, reference numeral 38 denotes a fixing bracket, and reference numeral 39 denotes a fixing nut.

Next, the operation of the present embodiment will be described.

When the lever handle 19 is swung up and down, the on-off valve 18 is pressed by the bush 20 from the outer surface side, and the cross-sectional area of the flow path changes according to the pressed length. For this reason, the flow rate of the supply water discharged from the water discharge pipe 23 is adjusted.

By the way, the water hammer generated at other places during the discharge of the faucet is connected to the faucet 11 via the water supply pipe 5.
3, the pressure in the water passage 21 shown in FIG. 3 increases, and this pressure is transmitted through the communication passage 31 to the piston portion 30.
Is propagated to the back side of. For this reason, the piston valve 27
3 slides rightward in FIG. 3 so that the valve body 28
It moves in the direction of seating at 4a, and supplies water to the water passage 21 after adjusting to an appropriate pressure. When the faucet is closed, the valve body 28 is seated on the valve seat 24a, so that no pressure is transmitted downstream.

When the on-off valve 18 is suddenly closed, the pressure in the water passage 21 increases. This increase in pressure is absorbed by the volume reduction of the elastic foam 35, and the water in the faucet 11 is reduced. The occurrence of hammer is prevented.

Since the pressure adjusting means 14 is incorporated in the faucet 11, the water pressure on the downstream side can always be maintained at a constant value or less. It is also possible to prevent water hammer from occurring on the stopper 11 itself. Therefore, the faucet 11 can be configured with a very low pressure resistance. Further, by limiting the flow rate (flow velocity) of the supply water to an appropriate range by the pressure adjusting means 14, the size of the water hammer reducing means 15 can be reduced.

FIG. 4 shows a second embodiment of the present invention, in which the pressure adjusting means 1 in the first embodiment is shown.
4, using an upstream primary pressure adjusting means 44A and a downstream secondary pressure adjusting means 44B.
Only the 4B is incorporated in the faucet 11.

In other respects, the configuration is the same as that of the first embodiment, and the operation is the same.

Since the pressure is regulated in two stages of the primary pressure regulating means 44A and the secondary pressure regulating means 44B, the occurrence of water hammer can be minimized even when the water supply pressure from the pipe 6 is extremely high. In addition, since the pressure difference before and after each of the pressure adjusting means 44A and 44B is smaller than that in the case of single-stage pressure regulation, occurrence of troubles such as vibration can be suppressed. In addition, since the primary pressure adjusting means 44A is provided outside the faucet 11, it can be used only in an area where the water supply pressure is high, thereby simplifying the structure of the faucet 11 and reducing the cost. Can be.

FIG. 5 shows a third embodiment of the present invention. Unlike the first embodiment, the water hammer reducing means 15 is not provided directly on the water supply pipe 5 but downstream of the pressure adjusting means 14. The water supply pipe 5 on the side is connected via a bypass passage 50.

FIG. 6 shows a fourth embodiment of the present invention, in which the pressure adjusting means 1 according to the third embodiment is described.
The primary pressure adjusting means 44A and the secondary pressure adjusting means 44B are used in place of 4, the primary pressure adjusting means 44A is provided in the water supply pipe 5, and the secondary pressure adjusting means 44B is provided in the bypass 50. is there.

FIG. 7 shows a specific example of the faucet 11 shown in FIG.
Is provided with a bypass passage 50 communicating with the water passage 21 on the downstream side of the pressure adjusting means 14. The bypass path 50 is connected to the water hammer reducing means 1 through a soft connecting pipe 51.
5 are provided.

This water hammer reducing means 15 is provided in FIG.
As shown in the figure, the main body 52 is formed of a container and an elastic foam 53 accommodated in the main body 52. The elastic foam 53 has a volume when the pressure in the water passage 21 increases. This reduces the pressure, thereby preventing the occurrence of water hammer.

The main body 52 is slidably inserted through an annular valve seat 54 provided in the pipe of the water discharging section 4. At its downstream end, a flange-shaped valve portion 55
The valve portion 55 is configured to be seated on and separated from the valve seat 54 from the downstream side. Further, the main body 52 is urged by a pressure adjusting spring 56 in a direction in which the valve portion 55 is seated on the valve seat 54, whereby the main body 52 is moved between the outer peripheral portion of the main body 52 and the inner peripheral portion of the valve seat 54. Pressure regulating part 57 formed in
The amount of water supplied from the water discharge section 4 can be stabilized by adjusting the flow rate of the supplied water flowing through the water.

The remaining configuration is the same as that of the first embodiment, and the operation is the same. That is, the water pressure rise on the upstream side of the on-off valve 18 can be absorbed by the pressure adjusting unit 14, and the water hammer generated on the upstream side of the on-off valve 18 can be absorbed by the water hammer reducing unit 15.

Since the water hammer reducing means 15 can be arranged in the extra space on the downstream side of the valve body 2, the faucet 11 can be downsized, and the water hammer in the immediate vicinity of the on-off valve 18 can be absorbed. Propagation to others can be reduced. Further, the optimization of the flow rate by the pressure adjusting unit 57 also contributes to downsizing the water hammer reducing unit together with the pressure adjusting unit 14.

The remaining configuration is the same as that of the third embodiment, and the operation is the same.

Thus, the two pressure adjusting means 44A, 4
4B, the same effect as that of the second embodiment can be expected, and the secondary pressure adjusting means 44B can be disposed in the extra space on the downstream side of the valve body 2. 11 can be reduced in size.

FIG. 9 shows a fifth embodiment of the present invention, in which the pressure adjusting means 1 in the first embodiment is shown.
The water hammer reducing means 15 is also provided on the upstream side of 4, and the water hammer reducing means 15 is arranged on both the upstream side and the downstream side of the pressure adjusting means 14.

The remaining configuration is the same as that of the first embodiment, and the operation is the same.

Since the water hammer reducing means 15 is also provided on the upstream side of the pressure adjusting means 14, the piping 6 is formed by the water hammer generated on the upstream side of the faucet 11 by closing the valve of the pressure adjusting means 14. Further, it is possible to reduce adverse effects on other faucets connected to the pipe 6 and having no water hammer reducing function.

FIG. 10 shows a sixth embodiment of the present invention. The water hammer reducing means 15 in the first embodiment is connected to the upstream side of the pressure adjusting means 14 via a bypass path 60. It is made to communicate.

The remaining configuration is the same as that of the first embodiment, and the operation is the same.

Since the upstream side of the pressure adjusting means 14 is communicated with the water hammer reducing means 15 via the bypass path 60, the water pressure generated by the water hammer generated on the upstream side of the valve body 2 and the pressure adjusting means are increased as in FIG. The water hammer generated on the upstream side of the means 14 can also be absorbed.

FIG. 11 shows a seventh embodiment of the present invention. A water purifier 7 is provided between the pressure adjusting means 14 and the water hammer reducing means 15 in the first embodiment.
0 is provided.

In other respects, the configuration is the same as that of the first embodiment, and the operation is the same.

Conventionally, however, a mechanism for protecting a water purifier (mainly a filtration section such as a hollow membrane) by using a constant flow rate valve or the like to limit the pressure at the time of flow is used. Since the impact pressure of a hammer or the like cannot be adjusted, the hollow film breaks,
The adverse effects such as breakage of the fixed part could not be completely eliminated. On the other hand, in the present embodiment, since the pressure is always adjusted to an appropriate pressure by the pressure adjusting means 14, such a problem does not occur. Further, since the water hammer reducing means 15 is provided on the downstream side of the water purifier 70, the water purifier 70 can be protected from a water hammer generated when the valve body 2 is closed.

FIG. 12 shows an eighth embodiment of the present invention. An electric heating unit 80 for heating water supply by electric power is installed as a heating unit in a water faucet 11 so that the invention can be applied to a hot and cold water mixing faucet. It was done.

That is, the faucet portion 12 of the faucet 11 is constituted by a mixing valve body 82 for hot and cold water, the operating section 3 and the water discharging section 4, and the mixing valve body 82 branches off in the faucet 11. The downstream ends of the water supply channel 83 and the hot water supply channel 84 are connected to each other, and a pressure adjusting means 14 is provided upstream of a branch portion between the two channels 83 and 84.

Water hammer reducing means 15 is provided in each of the paths 83 and 84, and an electric temperature unit 80 is provided upstream of the water hammer reducing means 15 in the hot water supply path 84. .

In other respects, the configuration is the same as that of the first embodiment, and the operation is the same.

By the way, in the present hot water supply system, a method of separately supplying hot water and water heated by using gas or electricity and mixing them with a faucet at the end is adopted.
In the case of this method, there is a certain distance between the hot water supply source and the faucet, and in the pipe connecting them, the heated hot water remains unused and its temperature decreases with time, In the case of next use, there is a problem that the hot water can be used only after the residual water is discarded.

However, in the present embodiment, since the electric temperature unit 80 is incorporated in the water faucet 11, no wasteful heat source and water are required, and the time of the waste water which has conventionally been several tens of seconds is eliminated. Can also be saved. In addition, since the feedwater can be supplied to the electric temperature unit 80 with the feedwater pressure and the flow rate stabilized by the provision of the pressure adjusting means 14, the temperature of the mixed water can be stabilized. Further, since the water hammer reducing means 15 is arranged on the downstream side of the electric temperature unit 80,
The electric temperature unit 80 can be protected from a water hammer generated when the mixing valve body 82 is closed.

FIG. 13 shows a ninth embodiment of the present invention, in which the pressure adjusting means 14 in the faucet 11 of the first embodiment is omitted, and
The pipe 6 on the upstream side of the pipe branch 90 to the plurality of faucets 11
In addition, a plurality of faucets 11 are provided as a common product.

The remaining configuration is the same as that of the first embodiment, and the operation is the same.

Since the pressure adjusting means 14 is shared, the structure of each faucet 11 is simplified, and the cost of the water supply system can be reduced.

FIG. 14 shows a tenth embodiment of the present invention, in which the primary pressure adjusting means 44A provided in the water supply pipe 5 in the second embodiment is omitted, and The means 44A is provided on the pipe 6 upstream of the pipe branch 90 to the plurality of faucets 11 as a common product of the plurality of faucets 11.

The remaining configuration is the same as that of the second embodiment, and the operation is the same.

However, since the primary pressure adjusting means 44A is shared, the same effects as in the second embodiment can be obtained with a simpler system configuration, and the cost of the water supply system can be reduced. Can be.

FIG. 15 shows an eleventh embodiment of the present invention. The pressure adjusting means 14 and the water purifier 70 in the faucet 11 in the seventh embodiment are omitted, and Is provided in the pipe 6 on the upstream side of the pipe branching section 90 to the plurality of faucets 11, and a water purifier 70 is provided between the pressure adjusting means 14 and the branching section 90. It is intended to be a product.

In other respects, the configuration is the same as that of the seventh embodiment, and the operation is the same.

However, since the pressure adjusting means 14 and the water purifier 70 are shared, the same effects as in the seventh embodiment can be obtained with a cheaper system, and maintenance is easy.

FIG. 16 shows a twelfth embodiment of the present invention, in which the pressure adjusting means 14 in the faucet 11 in the eighth embodiment is omitted, and
To the pipe 6 on the upstream side of the pipe branch 90 of the plurality of faucets 11.
In addition, a plurality of faucets 11 are provided as a common product.

The remaining configuration is the same as that of the eighth embodiment, and the operation is the same.

Since the pressure adjusting means 14 is shared, the same effects as in the eighth embodiment can be obtained with a simpler system configuration.

FIG. 17 shows a thirteenth embodiment of the present invention, in which the pressure reducing means 13 in the first embodiment is constituted only by the water hammer reducing means 95. .

That is, the faucet 11 shown in FIG. 17 is configured by incorporating the water hammer reducing means 95 and the valve unit 97 in the main body cover 96.
A water discharge pipe 98 constituting the water discharge section 4 is provided on an outer peripheral portion of the main body cover 96, and a lever handle 99 constituting the operation section 3 is continuously provided above the main body cover 96.

The water hammer reducing means 95 is provided in the water supply pipe 5.
101 for sending water from the valve unit 97 to the water supply pipe 101 and the water supply passage 101 for sending water from the valve unit 97 to the water discharge pipe 98.
02, the main body 100 having
When the pressure in the water supply passage 101 becomes high, the water supply passage 101
The water supply inside the water passage 102 bypasses the valve unit 97.
A relief valve 103 for draining water is assembled.

That is, this relief valve 103 is
As shown in FIG. 19 and FIG. 19, a cylindrical valve box 104, a valve body 105 slidably disposed in the valve box 104,
And a spring 106 for urging the valve body 105. The valve box 104 has a relief valve port 107 communicating with the water supply channel 101 and a drain port 108 communicating with the water discharge channel 102.
The relief valve port 107 is provided with a valve seat 109 on which the valve body 105 is attached and detached. Also, the valve body 105
As shown in FIG. 20, the fin 111 includes a valve portion 110 at a central portion and a plurality of fins 111 protruding from an outer peripheral portion thereof. I have. The valve body 105 is seated on the valve seat 109 by the urging force of the spring 106 and closes the relief valve port 107. When the pressure in the water supply passage 101 becomes higher than a set value, the valve body 105 is closed. 105 is pushed by water pressure and the valve seat 10
9, the relief valve port 107 is opened, and the water supply in the water supply passage 101 is controlled by the relief valve 107 and the valve element 1.
The water is discharged to the water discharge passage 102 through the flow path portion 05, the inside of the valve box 104, and the drain port 108.

As shown in FIG. 17, the valve unit 97
A main body 112 having a valve seat 113, a valve body 114 disposed inside the main body 112, which slides on the valve seat 113 to open and close a flow path, and a driving member 1 for driving the valve body 114.
15 and the lever handle 99 is
15 to drive the valve unit 97.

In the above configuration, the normal relief valve port 10
7 is closed by the valve element 105, and
1 and the water discharge channel 102 are connected only via the valve unit 97.

In this state, when the pressure in the water supply passage 101 exceeds a set value such as when the valve unit 97 is fully closed, the valve body 105 of the relief valve 103 is separated from the valve seat 109 by this pressure, and the relief valve is released. The mouth 107 is opened. For this reason, the water supply in the water supply channel 101 is directly discharged to the water discharge channel 102 bypassing the valve unit 97.

When the water pressure rises, the water supply channel 10
Since the water hammer reducing means 95 having a structure for guiding the water supply in the water supply passage 1 to the water discharge passage 102 to suppress the pressure rise is used, a large water hammer pressure can be absorbed by a small-sized mechanism.

FIG. 21 shows a fourteenth embodiment of the present invention, in which a relief valve 123 is used in place of the relief valve 103 in the thirteenth embodiment.

That is, this relief valve 123 is
(A) to (c), as shown in FIG.
And a valve body 125 sliding in the valve box 124, and the valve body 12
5 is provided at the right end of the valve box 124 in the figure, and a relief valve port 127 communicating with the water supply passage 101 is provided.
The left end in the drawing is connected to a water discharge passage (not shown). Further, a plurality of groove-shaped drainage channels 128 are provided at an inner peripheral portion of the valve box 124 at the left end in the figure at intervals in the circumferential direction, and at the bottom of each drainage channel 128, each drainage channel 128 is provided. A buffer member 129 is provided for buffering the pressure of the supply water discharged through the airbag.

The other points are the same as those of the thirteenth embodiment.
It has the same configuration as that of the embodiment.

In the above configuration, when the pressure in the water supply passage 101 is lower than the set value, the valve body 125 is at the right end position by the urging force of the spring 126. When the pressure slightly increases, the valve body 125 moves to the left as shown in FIG. 21A, and the spring urging force and the pressure are balanced. In this state, when the pressure in the water supply passage 101 becomes equal to or higher than the set value, the valve element 125 is moved to the valve box 1 as shown in FIG.
Slide inside 24 to the left. Thereby, the valve box 124
The internal volume increases and the small water hammer pressure is absorbed by this volume increase.

On the other hand, when a larger water hammer pressure is generated, as shown in FIG.
5 further slides to the left and moves to a position where the drain 128 is opened. For this reason, the water supply in the valve box 124 is discharged to the water discharge passage through each drainage passage 128, thereby absorbing a large water hammer pressure. At this time, since the buffer material 129 is provided in each drainage channel 128, when water is discharged from the drainage channel 128, the impact can be reduced by the buffer material 129, and a greater water hammer pressure absorbing effect can be obtained. can get.

Thus, the small water hammer pressure is absorbed only by the increase in the volume in the valve box 124,
Only when a large water hammer pressure is applied, the water in the water supply channel 101 is discharged to the water discharge channel, so that the user is less likely to mistake the water faucet 11 for leakage.

Although not specifically described in the fourteenth embodiment, for example, as shown in FIG. 22, a cushioning member 130 may be additionally provided on the central inner peripheral surface of the valve box 124. . As a result, even when the water hammer pressure is large and the water hammer pressure is small, the buffer effect of the buffer member 130 is obtained, and the pressure absorbing effect can be further improved. Further, the valve element 125
A valve portion 125a is attached to the top of the valve seat 125, and the valve portion 125a is attached to the valve seat 12 formed at the top of the cylinder space in the valve box 124.
By making it possible to abut on 4a, the pressure absorbing effect can be more reliably exerted.

FIG. 23 shows a fifteenth embodiment of the present invention, in which the relief valve 123 in the fourteenth embodiment is replaced with a water hammer reducing means 135 for a hot and cold water mixing tap.
It is intended to be applied to.

That is, the water hammer reducing means 1
35 is provided with a main body 136 having a circular cross section. The main body 136 has a water supply path 137 for sending water to a mixing valve body (not shown) and a hot water supply path 13 for sending hot water to the mixing valve body.
8 and a water discharge passage 139 for sending hot water, water or mixed water from the mixing valve body to a water discharge pipe (not shown). A relief valve 123A for water supply is provided between the water supply channel 137 and the water discharge channel 139, and a relief valve 123B for hot water supply is provided between the water supply channel 138 and the water discharge channel 139. The water hammer pressures on the water supply side and the hot water supply side can be absorbed independently of each other.

The water hammer reducing means 1
By using 35, the occurrence of water hammer in the hot and cold water mixing tap can be effectively prevented.

In the fifteenth embodiment, the relief valve 123A on the water supply side and the relief valve 12 on the hot water supply side are used.
Although the case where 3B and 3B are mutually independent has been described,
As shown in FIG. 24, a water supply valve element 125A and a hot water supply valve element 125B are assembled in a single valve box 124, and these two valve elements 125A and 125B are connected to a single spring 126.
You may make it energize with. Thus, the configuration of the water hammer reducing unit 135 can be simplified, and the cost can be reduced.

FIG. 25 shows a sixteenth embodiment of the present invention, in which a relief valve 143 is used instead of the relief valve 103 in the thirteenth embodiment shown in FIG. .

The relief valve 143 is different from the relief valve 123 shown in FIG. 21 in that two first and second valve bodies 144 and 145 slide in series in the valve box 124 independently of each other. It is arranged as possible. A valve portion 146 is attached to the top of the first valve body 144, and the valve portion 146 is attached to the valve seat 12 formed at the top of the cylinder space in the valve box 124.
4a.

The first valve body 144 and the valve portion 146 are provided with a through passage 147 extending therethrough and extending in the axial direction. In addition, as shown in FIG. 25, a communication passage 124b extending from a position corresponding to the raised position of the first valve body 144 to a position corresponding to a lower position of the second valve body 145, in the side wall of the valve box 124. Are formed. Further, a spring 126 is provided below the second valve body 145 to urge the second valve body 145 toward the first valve body 144.

In the relief valve 143 according to this embodiment, normally, the second valve body 145 comes into contact with the first valve body 144 by being urged by the spring 126, and the first valve body 1
Forty-four valve parts 146 abut against the valve seat 124a to close the relief valve port 127.

When the water pressure in the water supply passage 101 rises or the water pressure rises due to a gentle water hammer, the water pressure acts on the second valve body 145 through the relief valve port 127 and the through passage 147. The second valve body 145 is moved downward in the figure against the urging force of the spring 126. In this case, the first valve body 144 has a valve portion 146 having a valve seat 124a.
The second valve body 145 does not move while being in contact with, but the rising pressure is absorbed by the movement of the second valve body 145.

If an impact pressure is applied to the water supply passage 101 by a water hammer or the like, this pressure is applied to the through passage 147.
Before acting on the second valve body 145 through the first valve body 14
4 acts on the valve portion 146 of the second valve body 1.
It moves downward in the figure along with 45. Also, the first valve body 144
Moves, the upper and lower openings of the communication path 124b are opened, the water supply in the valve box 124 is drained to the water discharge passage through the communication path 124b, and the large water hammer pressure is reduced.

[0139]

As described above, according to the present invention, since the pressure reducing means for reducing the water pressure is provided in the water passage upstream of the on-off valve, the water pressure applied to the on-off valve of the faucet can be reduced. Water hammer and cavitation can be reduced, and the pressure resistance of the on-off valve can be reduced, so that cost reduction can be achieved.

In the present invention, since the pressure reducing means is constituted by the water hammer reducing means for guiding the water supply to the water discharge part by using the opening / closing valve which is opened by the increase of the water pressure as a bypass, the water hammer reducing means is small. Thus, a large water hammer pressure can be sufficiently absorbed.

In the present invention, the pressure reducing means is constituted by pressure adjusting means for adjusting the pressure in any state of water discharge and water stoppage by narrowing the throttle by increasing the water pressure. The hammer can be prevented from adversely affecting the faucet.

In the present invention, the pressure reducing means is constituted by the water hammer reducing means and the pressure adjusting means, so that both the water hammer generated by others and the water hammer generated by itself can be reduced. Can be.

In the present invention, the pressure reducing means is constituted by sequentially arranging the upstream pressure adjusting means and the downstream water hammer reducing means in the water passage, and is incorporated in the faucet. The water hammer can be reduced without the need for the work on the piping side, which was conventionally required for installing the water hammer reducer.

In the present invention, the pressure adjusting means is composed of the upstream primary pressure adjusting means and the downstream secondary pressure adjusting means, and only the secondary pressure adjusting means is incorporated in the faucet. However, the effect of the present invention can be obtained while simplifying the structure of the faucet. On the other hand, in an area where the water supply pressure is high where the pressure cannot be adjusted only by the secondary pressure adjusting means, the primary pressure adjusting means can be added. Further, the water hammer can be effectively prevented without generating vibration or the like caused by excessive pressure adjustment.

According to the present invention, the pressure reducing means is constituted by a pressure adjusting means and a water hammer reducing means which is connected to a water passage on the downstream side of the pressure reducing means via a bypass and is provided downstream of the on-off valve. Since it is incorporated in the faucet, water hammer pressure in the immediate vicinity of the on-off valve can be absorbed and propagation to other parts can be minimized. The rising dimension of the faucet can be reduced.

According to the present invention, the pressure reducing means is composed of a primary pressure adjusting means, a water hammer reducing means and a secondary pressure adjusting means connected to a water passage downstream of the primary pressure adjusting means via a bypass. And since these are incorporated in the faucet, even when the water supply pressure to the faucet is high, the occurrence of the water hammer can be prevented only by the faucet without the need for other external parts. In addition, the size of the faucet can be reduced.

According to the present invention, the pressure reducing means is constituted by a pressure adjusting means and water hammer reducing means disposed on the upstream and downstream sides of the pressure adjusting means, respectively, and these are assembled in a faucet. Therefore, the adverse effect of the water hammer on the pipe for supplying water to the faucet can be reduced.

In the present invention, the water hammer reducing means is communicated with the upstream side of the pressure adjusting means via a bypass, so that the water hammer generated on the upstream side of the pressure adjusting means can be absorbed with a simple structure. can do.

In the present invention, since the water purifier is provided between the pressure adjusting means and the water hammer reducing means, the water purifier is protected from the water hammer generated by other parts and the water hammer generated by the faucet itself. can do.

According to the present invention, the on-off valve is constituted by a water supply passage branching in the faucet and a hot water mixing valve to which downstream ends of the hot water supply passage are respectively connected, and the pressure reducing means is provided by the water supply passage and the hot water supply passage. And a water hammer reducing means provided immediately upstream of the mixing valve of the water supply channel and the hot water supply channel, respectively, and a water hammer reducing means of the hot water supply channel. Since the heating unit is provided on the upstream side, wasteful heat source water is not required, and the time of waste water, which has conventionally been several tens of seconds, can be saved. Further, the temperature of the mixed water can be stabilized by stabilizing the flow rate.

According to the present invention, the water hammer reducing means is provided on the upstream side of the on-off valve in the faucet, and the pressure adjusting means is provided on the upstream side of the branch of the pipe to a plurality of faucets. By sharing the adjusting means, the cost of the water supply system can be reduced.

According to the present invention, in addition to providing the pressure adjusting means upstream of the branch portion of the pipe to a plurality of faucets, a secondary pressure adjusting means is provided upstream of the water hammer reducing means of each faucet. Since it is provided, the pressure adjustment value can be set for each faucet according to the appropriate flow rate of the faucet, water saving and effective flow distribution can be performed, and the water hammer can be reduced. . Furthermore, vibrations and sounds associated with excessive pressure adjustment can be efficiently reduced.

In the present invention, since a water purifier is provided between the branch portion of the pipe to a plurality of faucets and the pressure adjusting means, the pressure adjusting means and the water purifier can be shared to provide a water supply system. Cost can be reduced.

In the present invention, the pressure adjusting means is provided as a common product of a plurality of faucets on the upstream side of the branch to the plurality of faucets, so that the system configuration is simplified and the cost is reduced. A hot water mixing system can be obtained.

According to the present invention, the on-off valve is constituted by a flexible tube having elasticity, and the flexible tube is pressed from the outer surface side by operating the operation portion to change the cross-sectional area of the flow passage. Therefore, a low-cost on-off valve can be obtained, and a change in the flow path can be made smooth, and the occurrence of cavitation and the resulting noise and erosion can be prevented.

According to the present invention, since the water passage and the pressure-resistant portion of the faucet are formed of a synthetic resin material, corrosion of the water discharge portion and the like can be prevented, and the cost can be reduced.

In the present invention, the on-off valve is constituted by a flexible tube, the pressure reducing means is constituted by a pressure adjusting means and a water hammer reducing means, and the volume of the water hammer reducing means is reduced by an increase in water pressure. Since it is made of an elastic body, the on-off valve and the water hammer reducing means can be manufactured at low cost, and the water is not discharged from the water discharge section when the water hammer is reduced.

According to the present invention, the water hammer reducing means is constituted by a main body, an elastic body and a communication pipe, and a valve portion is provided on the main body, and the main body is provided with a pressure adjusting spring so that the valve portion is seated on a valve seat. The water hammer reducing means can be incorporated in the water faucet without increasing the size of the water faucet. The flow rate can be made more stable.

Further, in the present invention, the water hammer reducing means is constituted by the valve box, the valve element, the spring and the drainage channel. Water is absorbed and the water in the valve box is discharged to the spout only for the large water hammer, so that the user is less likely to misunderstand that the faucet is leaking.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a faucet apparatus according to a first embodiment of the present invention.

FIG. 2 is a sectional view showing a specific example of the faucet apparatus of FIG.

FIG. 3 is an enlarged view of a main part showing a pressure adjusting unit of FIG. 2;

FIG. 4 is a diagram corresponding to FIG. 1 showing a second embodiment of the present invention.

FIG. 5 is a diagram corresponding to FIG. 1 showing a third embodiment of the present invention.

FIG. 6 is a view corresponding to FIG. 1 according to a fourth embodiment of the present invention.

FIG. 7 is a sectional view showing a specific example of the faucet device of FIG. 6;

FIG. 8 is an enlarged view of a main part showing a water hammer reducing unit in FIG. 6;

FIG. 9 is a view corresponding to FIG. 1, showing a fifth embodiment of the present invention.

FIG. 10 is a view corresponding to FIG. 1, showing a sixth embodiment of the present invention.

FIG. 11 is a view corresponding to FIG. 1, showing a seventh embodiment of the present invention.

FIG. 12 is a view corresponding to FIG. 1, showing an eighth embodiment of the present invention.

FIG. 13 is a system configuration diagram showing a ninth embodiment of the present invention.

FIG. 14 is a view corresponding to FIG. 13 showing a tenth embodiment of the present invention.

FIG. 15 is a view corresponding to FIG. 13 showing an eleventh embodiment of the present invention.

FIG. 16 is a view corresponding to FIG. 13 showing a twelfth embodiment of the present invention.

FIG. 17 is a diagram corresponding to FIG. 2, showing a thirteenth embodiment of the present invention;

FIG. 18 is an enlarged view of a main part showing the water hammer reducing unit of FIG. 17;

FIG. 19 is an enlarged view of a main part of FIG. 18;

FIG. 20 is a perspective view of the valve body of FIG. 19;

FIGS. 21A to 21C are cross-sectional views of a relief valve according to a fourteenth embodiment of the present invention.

FIG. 22 is a diagram corresponding to FIG. 21 (a) showing a modified example of the relief valve.

FIG. 23 is a sectional view of a water hammer reducing unit according to a fifteenth embodiment of the present invention.

FIG. 24 shows an example in which the structure of a relief valve is simplified.
Equivalent figure.

FIG. 25 is a sectional view of a relief valve according to a sixteenth embodiment of the present invention.

FIG. 26 is a block diagram showing a conventional faucet device.

FIG. 27 is an explanatory diagram showing a conventional system configuration.

[Explanation of symbols]

 2 valve body 3 operation part 4 water discharge part 5 water supply pipe 6 pipe 11 faucet 12 faucet part 13 pressure reducing means 14 pressure adjusting means 15, 95, 135 water hammer reducing means 18 on-off valve 21, 22 water passage 25 control valve body 26 Restrictor 27 Piston Valve 31 Communication Path 32 Space 35,53 Elastic Foam 44A Primary Pressure Adjusting Means 44B Secondary Pressure Adjusting Means 50,60 Bypass Path 52 Main Body 54 Valve Seat 55 Valve Part 56 Pressure Adjusting Spring 70 Water Purifier 80 Heating Unit 82 Mixing valve body 90 Branch 103,123,123A, 123B Relief valve 104,124 Valve box 105,125 Valve 106,126 Spring 107,127 Relief valve port

Claims (25)

[Claims] 1. A water faucet device comprising an on-off valve, an operation unit for operating the on-off valve, and a water discharge unit for discharging water from the on-off valve, wherein a water passage upstream of the on-off valve is provided. A water faucet device provided with pressure reducing means for reducing water pressure. 2. A water hammer reducing means for opening a valve in response to a rise in water pressure and bypassing an on-off valve to guide water supply to a water discharge section.
The faucet device as described. 3. The pressure reducing means according to claim 1, wherein the pressure reducing means comprises pressure adjusting means for adjusting the pressure downstream of the throttle valve by reducing the throttle valve as the water pressure rises.
The faucet device according to claim 1. 4. A pressure reducing means comprising: a water hammer reducing means for opening a valve due to a rise in water pressure and bypassing an on / off valve to guide water supply to a water discharge section; and a throttle valve for reducing a throttle valve by increasing the water pressure. 2. The faucet device according to claim 1, further comprising pressure adjusting means for adjusting the downstream pressure. 5. The pressure reducing means is constituted by sequentially arranging an upstream pressure adjusting means and a downstream water hammer reducing means in a water passage, and being incorporated in a water faucet. The faucet device according to claim 1. 6. The pressure regulating means includes an upstream primary pressure regulating means and a downstream secondary pressure regulating means, and only the secondary pressure regulating means is incorporated in the faucet. Claims 1, 3,
The faucet device according to 4 or 5. 7. The pressure reducing means is composed of a pressure adjusting means, and a water hammer reducing means connected via a bypass to a water passage downstream of the pressure adjusting means, and is incorporated in the faucet. The faucet device according to claim 1 or 4, wherein: 8. The pressure reducing means comprises a primary pressure adjusting means, a water hammer reducing means and a secondary pressure adjusting means connected to a water passage downstream of the primary pressure adjusting means via a bypass. The faucet device according to claim 1, wherein the faucet device is incorporated in a faucet. 9. The pressure reducing means comprises pressure adjusting means, and water hammer reducing means disposed upstream and downstream of the pressure adjusting means, respectively, and is incorporated in the faucet. The faucet device according to claim 1 or 4, wherein: 10. The faucet apparatus according to claim 5, wherein said water hammer reducing means is communicated with an upstream side of said pressure adjusting means via a bypass. 11. The faucet device according to claim 5, wherein a water purifier is provided between the pressure adjusting means and the water hammer reducing means. 12. An on-off valve comprising a water supply and a water mixing valve to which downstream ends of a water supply path and a hot water supply path are branched, respectively, in a water faucet. The water supply is heated by a heating source on the upstream side of the water hammer reducing means of the hot water supply path, which comprises pressure adjusting means provided on the upstream side of the section and water hammer reducing means provided on each of the water supply path and the hot water supply path. The faucet device according to claim 1, further comprising a heating unit that performs heating. 13. The faucet apparatus according to claim 12, wherein said heating unit is an electric heating unit using electricity. 14. A faucet apparatus comprising a shutoff valve having an on-off valve, an operation unit for operating the on-off valve, and a water discharge unit for discharging water from the on-off valve, the upstream side of the on-off valve in the faucet. To
A water faucet apparatus comprising: a water hammer reducing means; and a pressure adjusting means provided upstream of a branch of a pipe into a plurality of water taps. 15. The water hammer reducing means opens the valve due to an increase in water pressure, guides water supply to a water discharge section by bypassing an on-off valve, and the pressure adjusting means throttles a throttle valve by increasing water pressure. The faucet device according to claim 14, wherein the downstream pressure is adjusted by a valve. 16. A faucet apparatus according to claim 14, wherein a secondary pressure adjusting means is provided upstream of the water hammer reducing means in the faucet. 17. The faucet apparatus according to claim 16, wherein said secondary pressure adjusting means adjusts the pressure downstream of the throttle valve by narrowing the throttle valve as the water pressure rises. 18. A faucet apparatus according to claim 14, wherein a water purifier is provided between a branch portion of the pipe to a plurality of faucets and the pressure adjusting means. . 19. The faucet apparatus according to claim 12, wherein the pressure adjusting means is provided as a common product of the plurality of faucets on the upstream side of a branch portion of the pipe to the plurality of faucets. . 20. The on-off valve according to claim 1, wherein the on-off valve is constituted by a flexible tube having elasticity, and the flexible tube is pressed from an outer surface side by an operation of an operation portion, and its flow path cross-sectional area changes. The faucet device according to any of the above. 21. The faucet device according to claim 1, wherein the water passage and the pressure-resistant portion of the faucet are formed of a synthetic resin material. 22. The on-off valve is constituted by a flexible tube which is elastically deformed by being pressed from the outer surface side by operation of the operation unit and whose cross-sectional area of the flow path is changed, and the pressure reducing means is provided with an upstream pressure. The water hammer reducing means is constituted by an adjusting means and a water hammer reducing means on the downstream side thereof, and the water hammer reducing means is constituted by an elastic body whose volume is reduced by an increase in water pressure. , 6, 8-20. 23. A water hammer reducing means comprising: a container-shaped main body slidably disposed in an annular valve seat provided in a water discharging portion; and an elastic body disposed in the main body and reduced in volume by an increase in water pressure. And a communication pipe connecting the inside of the main body and the bypass passage. The main body has a valve portion that is seated on and separated from the valve seat from a downstream side, and the valve portion is seated on the valve seat by a pressure adjusting spring. 9. The faucet device according to claim 7, wherein the faucet device comprises pressure regulating means biased in the direction. 24. A water hammer reducing means comprising: a valve body which slides in a valve box and is seated on or off a valve seat; a spring which urges the valve body in a seating direction; And a drainage passage which is opened when sliding by a predetermined amount to guide the water supply in the valve box to the water discharge section.
The faucet device according to 7, 11, 12, 14, or 20. 25. The faucet device according to claim 24, wherein a buffer member for buffering the pressure of the water supplied through the drainage channel is provided at the bottom of the drainage channel.