JPH08144338A - Faucet used mainly for washing machine - Google Patents

Abstract

PURPOSE: To prevent a severe water hammer phenomenon when water supply pressure rises and restrict the propagation of impulse waves, if caused, to a city water pipe by storing a pressure reducing valve mechanism in a water discharge pipe in a body. CONSTITUTION: During washing by a washing machine at night when water pressure rises, city water supplied from a faucet A is reduced in pressure to a preset water pressure by a pressure reducing valve mechanism (v) stored in a storage (w) formed in a water discharge pipe 11 in a body 1 and supplied to the washing machine. A severe water hammer phenomenon is therefore prevented. Impulse waves, when caused by closing an electromagnetic valve on the washing machine side, are absorbed by the movement of a pressure sensitive disc in the pressure reducing valve mechanism (v). As a result, the propagation of the impulse waves to the city water pipe is prevented and the impulse on equipment and abnormal impulse noise are restricted.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a faucet mainly used in a washing machine, in which an elbow-shaped connecting pipe for connecting a hose is rotatably mounted on a water outlet.

[0002]

2. Description of the Related Art The faucet A of the above-described form is mainly used for supplying water to an automatic washing machine. In the conventional one, as shown in FIG. 1, the base end of the body 1 is usually used. Side is provided with an inlet side joint pipe 10 connected to a water pipe, a tip end side is provided with a water discharge pipe 11, and inside the body 1,
A partition wall 12 that separates the primary side and the secondary side is provided, and a valve opening 13 is opened along a horizontal surface of the partition wall 12, and a screw is provided on the upper surface side of the body 1 at a portion located above the valve opening 13. Tube 14
Is provided so that the base end side thereof communicates with the primary side in the body 1, and the lower end side of the stopper rod 16 having the handle 15 on the upper end side is screwed into the screw cylinder 14, and the lower end side thereof is screwed. Further, a shaft portion of a top 18 having a valve 17 made of synthetic rubber for opening and closing the valve opening 13 is assembled on the lower surface side so as to be vertically slidable, and a tip opening portion of the water discharge pipe 11 is fitted. In this case, the base end of the elbow-shaped connection tube 2 is rotatably fitted while maintaining watertightness, and the connection tube 2 is connected to the water discharge tube 11 by a cap nut 20 screwed onto the outer circumference of the water discharge tube 11. It is configured to be rotatably attached to the tip of the.

As a result, the elbow-shaped connecting tube 2 is provided.
By connecting a hose to the tip of the hose, connecting the tip side of the hose to the water supply port of the automatic washing machine, and then operating the handle 15 to pull the valve 17 away from the valve port 13 and open the valve.
Water is supplied to the automatic washing machine, and thereafter, water is supplied and stopped by automatic control by an electromagnetic valve provided in the automatic washing machine.

[0004]

The faucet A in which the elbow-shaped connecting cylinder 2 is rotatably mounted on the water discharge pipe 11 is as follows.
When connecting to the water inlet of an automatic washing machine via a hose, when the washing, dehydration, rinsing, and other washing processes are automatically switched by the control device equipped in the automatic washing machine. The water hammer phenomenon occurs because the water shutoff and the water supply are automatically switched by the operation of the solenoid valve provided in the automatic washing machine. In particular, when washing at night, there is a problem that the water hammer phenomenon becomes serious because the surroundings are quiet and the amount of water used in the neighborhood is small and the water pressure is high.

The present invention has been made in order to solve this problem that has occurred in the conventional means, and a faucet which is used by being connected to an automatic washing machine is controlled to open and close by an electromagnetic valve on the automatic washing machine side. It is an object of the present invention to provide a new means for effectively preventing the occurrence of the water hammer phenomenon when it is hit.

[0006]

In the present invention, as means for achieving the above object, a joint pipe on the inlet side is provided on the base end side of the body, and a water discharge pipe is provided on the tip end side. A water shutoff valve mechanism that opens and closes the communication between the primary side and the secondary side by operating a handle provided on the outer surface side of the body is provided, and an elbow-shaped connecting tube is rotated at the tip of the water discharge pipe. In the freely installed faucet, a pressure reducing valve mechanism is built in the body by forming a storage chamber in the inner cavity of the water discharge pipe of the body and storing the pressure reducing valve mechanism inside it. It mainly proposes a faucet used in a washing machine.

[0007]

According to the means of the present invention, when the automatic washing machine is used for washing at night when the water supply pressure increases, the tap water supplied from the faucet A is in the water discharge pipe 11 of the body 1 of the faucet A. Since the pressure reducing valve mechanism v stored in the storage chamber w formed in 1 is reduced to a predetermined water pressure set therein and supplied to the automatic washing machine, it is possible to prevent a severe water hammer phenomenon from occurring. Further, when a shock wave is generated due to the closing of the solenoid valve on the automatic washing machine side, the shock wave is absorbed by the movement of the pressure sensitive plate 32 of the pressure reducing valve mechanism v, so that the shock wave is transmitted to the water pipes and shocks the equipment. give,
Further, it is possible to effectively prevent the generation of an abnormal impact sound.

Further, the pressure reducing valve mechanism v has a valve opening 13 and a valve 17.
By being located on the secondary side of the water shut-off valve mechanism a made of, for example, maintenance can be easily performed.

When the storage chamber w of the pressure reducing valve mechanism v is provided at the bottom of the body 1, the pressure reducing valve mechanism v accommodated therein.
However, when it is located on the primary side with respect to the water shutoff valve mechanism a, it becomes troublesome for maintenance, but the front-rear length of the body 1 of the faucet A can be shortened.

[0010]

Embodiments Next, embodiments will be described in detail with reference to the drawings. The same reference numerals are used for the constituent members having the same effects as those of the conventional means.

FIG. 2 is a vertical side view of the first embodiment. In FIG. 2, 1 is a body, 10 is a joint pipe on the inlet side formed on the base end side of the body 1, and 11 is the tip side of the body 1. A reference numeral 12 denotes a water discharge pipe, 12 denotes a partition wall provided inside the body 1 so as to separate the primary side from the secondary side, 13 denotes a valve opening formed on the partition wall 12 along a horizontal surface, and 14 denotes a body. 1
A screw cylinder provided so that the lower end side communicates with the secondary side in the body 1 at a position where the axis line is aligned with the valve port 13 on the upper surface side of the
Reference numeral 15 is a handle provided on an upper portion of a stopper rod 16 screwed into the screw cylinder 14, 18 is a top piece slidably fitted in a lower end of the stopper rod 16 up and down, and 17 is attached to a lower surface of the top holder 18. The valve 2 made of synthetic rubber is a connecting cylinder that is rotatably attached to the tip of the water discharge pipe 11, and these are shown in FIG.
It is no different from the conventional faucet A shown in.

However, the water discharge pipe 11 formed on the front end side of the body 1 is formed to have a slightly longer diameter and a larger diameter than the water discharge pipe 11 of the conventional faucet A. A storage chamber w for storing and incorporating the pressure reducing valve mechanism v in the cavity is formed.

A pressure reducing valve mechanism v for storing in the storage chamber w
As shown in FIG. 3 to FIG. 5, the water outlet 31 is provided at the center of the casing 30 having an outer diameter corresponding to the inner diameter of the storage chamber w, which is the secondary side X inside the case 30. The pressure sensitive plate 32 having the above-mentioned structure is fitted in such a manner that it is watertight and slidable in the axial direction, and a cylindrical valve 33 having a cylindrical shape is attached to the central portion of the pressure sensitive plate 32. In a state of being connected to the water port 31, the pressure sensitive board 32 is integrally or integrally assembled, and the tip end side of the cylindrical valve 33 is connected to the secondary side X of the case 30.
Is projected toward the other end side, and its tip end side is slidably fitted while being kept watertight in the central hole of the partition wall 34 provided in a portion near the end of the primary side Y in the case 30. The tip of the tubular valve 33 that penetrates through the partition wall 34 is movably opposed to the valve seat 35 that is fixed to the end of the primary side Y in the case 30 and is attached to the end of the primary side Y of the case 30. (Or both ends of the primary side end and the secondary side end), the pull tab 36,
It is foldably and rotatably mounted by being supported by a mounting rod 37 that extends across the opening of the case 30 on the end side thereof.
A spring 39 that pushes back the pressure sensitive plate 32 to the primary side is housed in a spring chamber 38 formed between the pressure sensitive plate 32 and the partition wall 34, and a ventilation hole 40 is provided in a portion surrounding the spring chamber 38 by the peripheral wall of the case 30. Is provided, and by this, the primary side Y
Is reduced to a set pressure set by the pressure receiving area of the pressure sensitive plate 32 and the spring pressure of the spring 39 so as to flow to the secondary side X, and the case 36 is held by the handle 36.
It is formed into a cartridge shape to be assembled in the body 1 of the faucet A by inserting the 0 into the storage chamber w in the water discharge pipe 11.

Further, the water discharge pipe 11 is provided with the cartridge-like pressure reducing valve mechanism v, and the case 30
Vent holes 4 are provided at the portions corresponding to the vent holes 40 provided on the peripheral wall of the
1 is provided. The connecting cylinder 2 attached to the tip of the water discharge pipe 11 is attached to the cap nut 20 screwed to the tip of the water discharge pipe 11 in a state in which the base end portion is rotatably assembled. It is attached by being screwed onto the tip of the water discharge pipe 11.

Next, FIG. 6 shows a second embodiment.
In this embodiment, a storage chamber w for incorporating the pressure reducing valve mechanism v into the body 1 is formed by forming a bulging portion 50 at the bottom of the body 1 and forming the bulging portion 50 in the bulging portion 50. The pressure reducing valve mechanism v is inserted from the opening 51 provided on the lower surface of the portion 50 and incorporated,
This is an example in which the pressure reducing valve mechanism v is incorporated into the body 1 by water-tightly covering the opening 51 with the bottom cover 52.

Also in this example, the body 1 is provided with the inlet side joint pipe 10 at the base end side thereof and the water discharge pipe 11 at the tip end side thereof.
Is provided with an elbow-shaped connecting pipe 2 rotatably mounted on the tip thereof, and a partition wall 1 separating the primary side and the secondary side is provided inside.
2 is provided, the valve opening 13 is opened along this on a horizontal surface, and a screw cylinder 14 is provided on the upper surface side, and a stopper rod 16 provided with a handle 15 at the upper end is screwed into this. , That tap rod 16
For inserting the top 18 into the lower end of the top so as to be slidable up and down, and providing the valve 17 made of a synthetic rubber material facing the valve opening 13 on the lower surface of the top 18, It is no different from Faucet A for automatic washing machines.

However, a bulging portion 50 bulging downward is formed at the bottom of the body 1, and a storage chamber w for storing the pressure reducing valve mechanism v is formed inside the bulging portion 50, and Bulge 5
On the lower surface of 0, an opening 51 which is opened and closed by a detachable bottom lid 52 is provided at a position which occupies a position directly below the storage chamber w, and a pressure reducing valve mechanism v is inserted from the opening 51 and the above-mentioned opening 51 is provided. It is designed to be installed in the storage room w.

As shown in FIG. 6, the bulging portion 50 is formed so as to extend from below the valve opening 13 in the body 1 to the lower surface on the base end side of the joint pipe 10 on the inlet side. The valve 17 installed in the body 1 and the valve 17 mounted on the top 18
It is arranged on the primary side with respect to the water shutoff valve mechanism a constituted by.

As the pressure reducing valve mechanism v incorporated in the storage chamber w formed in the bulging portion 50, the one having the cartridge shape shown in FIGS. 3 to 5 is used. Further, since the case 30 which is the outer casing thereof is formed in a cylindrical shape, the storage chamber w formed in the bulging portion 50 has a cylindrical portion in the bulging portion 50 and its peripheral wall. Is provided with a semi-cylindrical partition 53 to form a cartridge-like pressure reducing valve mechanism v.
The outer surface of the case 30 is formed into a cylindrical shape that is fitted in a watertight manner via the watertight holding members 42.

Further, the bottom lid 52 fitted in the opening 51 on the bottom surface of the bulging portion 50 has a projection 54 on its upper surface for supporting the lower end side of the cartridge-like pressure reducing valve mechanism v to be loaded in the storage chamber w. ... is formed.

Next, FIG. 7 shows a part of another embodiment. In this embodiment, the joint pipe 1 on the inlet side of the body 1 is
Collar part 10b provided at the base end part of the screw part 10a at the tip of 0
Is formed separately from the body 1, and the screw portion 10 of the body 1 is formed.
This is an example in which it is screwed onto a and mounted on the body 1.

In this embodiment, the screw portion 10a of the joint pipe 10 of the body 1 is connected to the end of the water pipe that is guided inside the wall of the building body, and the body 1 of the faucet A is connected to the wall of the building body. When installing it so that it is attached to the front of the
Between the collar portion 10b and the wall surface of the building skeleton by rotating the screw portion 10a with respect to the screw portion 10a and moving the joint portion 10 in the axial direction of the joint pipe 10.
You will be able to adjust it so that there are no gaps.

[0023]

As described above, in the faucet A according to the present invention, the connecting cylinder 2 provided in the water discharge pipe 11 of the faucet A is automatically connected via a hose at night when the water supply pressure of the tap water rises. When connecting to the water supply port of the washing machine and performing washing by the automatic washing machine, tap water supplied from the faucet A is decompressed in a storage chamber w formed in the water discharge pipe 11 of the body 1 of the faucet A. Since the valve mechanism v reduces the predetermined water pressure to the predetermined water pressure and supplies it to the automatic washing machine, when a shock wave is generated due to the closing of the electromagnetic valve on the automatic washing machine side, the shock wave is generated by the pressure reducing valve mechanism v. By absorbing the shock waves by the movement of the pressure sensitive plate 32, it is possible to effectively prevent the shock wave from being transmitted to the water pipe, giving an impact to the equipment, and generating an abnormal shock sound.

Since the pressure reducing valve mechanism v incorporated in the body 1 is located on the secondary side of the water shutoff valve mechanism a, maintenance of the pressure reducing valve mechanism v can be easily performed.

When the bulging portion 50 is formed on the bottom of the body 1 and the storage chamber w is formed inside the bulging portion 50 and the pressure reducing valve mechanism v is incorporated therein, the maintenance is somewhat troublesome. However, the faucet A can be formed to have a short length.

[Brief description of drawings]

FIG. 1 is a vertical sectional view of a conventional faucet for a washing machine.

FIG. 2 is a vertical cross-sectional view of a faucet for a washing machine according to the present invention.

FIG. 3 is a vertical cross-sectional side view of a pressure reducing valve mechanism incorporated in the body of the above tap.

FIG. 4 is a plan view of a pressure reducing valve mechanism incorporated in the body of the above tap.

FIG. 5 is a bottom view of the pressure reducing valve mechanism incorporated in the body of the above tap.

FIG. 6 is a vertical sectional side view of another embodiment of the above tap.

FIG. 7 is a vertical sectional side view of a portion of still another embodiment of the same tap.

[Explanation of symbols]

A ... Faucet, a ... Water stop valve mechanism, w ... Storage chamber, v ... Pressure reducing valve mechanism, Y ... Primary side, X ... Secondary side, 1 ... Body, 10 ... Joint pipe, 10a ... Screw part, 10b ... Tsuba Part, 11 ... Water discharge pipe, 1
2 ... Partition wall, 13 ... Valve mouth, 14 ... Screw cylinder, 15 ... Handle, 16 ... Stopper bar, 17 ... Valve, 18 ... Top stand, 2 ... Connection cylinder, 20 ... Cap nut, 30 ... Case, 31 ... Water passage port Three
2 ... Pressure sensitive board, 33 ... Cylindrical valve, 34 ... Septum, 35 ... Valve seat,
36 ... Pull tab, 37 ... Mounting rod, 38 ... Spring chamber, 39 ... Spring, 40/41 ... Vent hole, 42 ... Watertight holding member, 50 ...
Bulging part, 51 ... Opening, 52 ... Bottom lid, 53 ... Partition wall, 54 ...
Protrusion.

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI technical display area // G05D 16/10 H

Claims (2)

[Claims] 1. A joint pipe 10 on the inlet side of the body 1 on the base end side thereof.
And a water discharge pipe 11 on the tip side, and a water shut-off valve for opening and closing communication between the primary side and the secondary side in the body 1 by operating a handle 15 provided on the outer surface side of the body 1. Mechanism a
And the faucet A in which the elbow-shaped connecting tube 2 is rotatably attached to the tip of the water discharge pipe 11, the water discharge pipe 11 of the body 1
A faucet mainly used for a washing machine characterized in that a pressure reducing valve mechanism v is incorporated in the body 1 by forming a storage chamber w in the inner cavity of the body and storing the pressure reducing valve mechanism v therein. . 2. A joint pipe 10 on the inlet side of the body 1 on the base end side thereof.
And a water discharge pipe 11 on the tip side, and a water shut-off valve for opening and closing communication between the primary side and the secondary side in the body 1 by operating a handle 15 provided on the outer surface side of the body 1. Mechanism a
In the faucet A in which the elbow-shaped connecting tube 2 is rotatably attached to the tip of the water discharge pipe 11, a bulging portion 50 is formed at the bottom of the body 1, and a storage chamber w is formed inside it. A faucet mainly used in a washing machine, characterized in that the pressure reducing valve mechanism v is incorporated in the body 1 by storing the pressure reducing valve mechanism v in the storage chamber w.