JPH09165805A - Flow rate adjusting water saving valve - Google Patents

Abstract

PROBLEM TO BE SOLVED: To eliminate a movable part in flowing water, and prevent generation of vibration and a noise by fitting/installing an outer cylinder to/on a bottomed inner cylinder, and regulating a flowing water quantity by the size of a thin clearance between an outer wall of the bottomed inner cylinder and an inner wall of the outer cylinder. SOLUTION: In a water saving valve 3 having the size interposable inside a delivery side pipe of a service water cock, an upper part of an outer cylinder 6 is tightly fitted and fixed to an upper part of a cylindrical part of a bottomed inner cylinder 5 having an outer collar 4 in a port part. Three water passing holes 7 and 7 are bored at equal intervals on the concentric circumference in an intermediate part side wall of the bottomes inner cylinder 5, and a thin clearance is arranged under the upper edge of the water passing holes 7 between an outer wall of the bottomed inner cylinder 5 and an inner wall of the outer cylinder 6. The size of this thin clearance is adjusted by determing a water passing quantity in the case of water pressure (for example, 4kg/cm). Though water flowed as an arrow 8 is discharged through the water passing holes 7 and the thin clearance, a water discharge quantity can be adjusted by the cross sectional area of the thinn clearance. Since a movable part does not exist in flowing water, there is no possibility of generating vibration and of generating a noise.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water saving valve for adjusting a flow rate, which is provided on the outlet side of a water faucet to regulate the amount of water discharged.

[0002]

2. Description of the Related Art Conventionally, as this kind of water-saving valve, there has been known a device having a structure in which a spherical valve body is supported by a spring in a cylindrical valve body so as to be movable in an axial direction (actual opening: 5-19743).
issue).

[0003]

In the conventional water-saving valve, the spherical valve element is supported in the valve body by the spring so as to be movable in the axial direction, so that the position of the spherical valve element can be automatically adjusted by the water pressure. There is a problem that vibration or sound is generated due to movement of the body.

[0004]

However, in the present invention, since the amount of water discharged can be controlled by adjusting the gap between the inner cylinder with the bottom and the outer cylinder, there is no moving part in the water channel, and the above-mentioned conventional problems are solved. is there.

That is, according to the present invention, in a water-saving valve used by being inserted in an outlet side pipe of a water tap, the upper part of the outer cylinder is tightly fitted to the cylindrical upper part of a bottomed inner cylinder having an outer collar at the mouth. A water passage hole is formed in a side wall of the inner cylinder, and a predetermined slit is provided between an outer wall of the inner cylinder below an upper edge of the water passage hole and an inner wall of the outer cylinder. It is a water-saving valve for adjusting the flow rate.

Another aspect of the invention is characterized in that the outer diameter of the outer cylinder is set to a size capable of being installed in the outlet side pipe of the water faucet, and the number of water passage holes is 2 to 4, It is characterized in that it is provided on the side wall of the cylinder so as to be inclined downward and outward. Next, a small water passage is provided at the bottom of the inner cylinder.

Since the water pressure is essentially constant depending on the place of use of the faucet, the gap when the water pressure is 2 kg / cm ² and 4 kg
And the gap in the case of / cm ^2, since the like clearance in the case of 6 kg / cm ² can constant water quantity released by each regulation, it is possible to achieve the water-saving purposes. Moreover, if the water passage hole formed in the inner cylinder is inclined downward, the flow resistance can be reduced.

[0008]

According to the present invention, the upper part of the outer cylinder is tightly fitted to the cylindrical upper part of the bottomed inner cylinder having the outer collar at the mouth, and the water passage hole is formed in the side wall of the inner cylinder. Since the slit is provided and a slit is provided between the outer wall of the inner cylinder and the inner wall of the outer cylinder, the water discharge amount can be adjusted by the cross-sectional area of the slit.

[0009]

Embodiment 1 An embodiment of the present invention will be described with reference to FIGS. A water-saving valve 3 of a size that can be installed inside the outlet-side pipe 2 of the tap 1 to the upper part of the tubular part of the bottomed inner cylinder 5 having an outer collar 4 at the mouth, and the upper part of the outer cylinder 6. Is tightly fitted and fixed. Three water passage holes 7, 7 are formed in the side wall of the middle portion of the bottomed inner cylinder 5 on a concentric circumference at equal intervals. An outer wall of the bottomed inner cylinder 5,
A narrow gap S is provided below the upper edge of the water passage hole 7 between the inner wall of the outer cylinder 6 and the inner wall of the outer cylinder 6. The size of the slit S is adjusted by determining the water flow rate at water pressure (for example, 4 kg / cm ² ).

In the above-described embodiment, the water flowing as shown by the arrow 8 is discharged through the water passage hole 7 and the slit S as shown by the arrows 9 and 10, but it originally passes. The amount of water should be S
Valve 11 at the same time because it is controlled by
A considerable amount of water will be saved when the water is released.

In the above description, the water passing through the slit is recognized as a considerably large amount of water being discharged due to the higher flow velocity, which can satisfy the user.

[0012]

Second Embodiment In this embodiment (FIG. 3), the water passage hole 7a of the first embodiment is a water passage hole 7a having a downward inclination (for example, 45 degrees with respect to the central axis). The water flow resistance of water passing through can be reduced.

However, the adjustment by the slit S is the same as that of the first embodiment, and the description of the operation is omitted.

[0014]

Third Embodiment In this embodiment (FIG. 4), a water passage hole 12 parallel to the central axis is provided in the central portion of the bottom plate 5a of the bottomed inner cylinder 5 of the first embodiment.

In the case of this embodiment, the water in the faucet is indicated by arrow 8,
Water passage holes 12 in the central portion while passing like 9 and 10.
Is also released from. Therefore, the slit S has a regulated amount of water, and a constant amount of water is discharged from the central portion.

However, the state of running water is the same as that of the first embodiment, and detailed description thereof will be omitted.

[0017]

According to the present invention, the outer cylinder is fitted into the bottomed inner cylinder, and the amount of water flowing is regulated by the size of the gap between the outer wall of the bottomed inner cylinder and the inner wall of the outer cylinder. There are no moving parts inside,
There is an effect that there is no fear of generating vibration or generating noise.

Further, the structure is simple and there is no risk of failure.

[Brief description of the drawings]

FIG. 1 is a partially cutaway front view of an embodiment of the present invention.

FIG. 2 is a plan view of a center cross section of the same.

FIG. 3 is a front view in which a part of another embodiment is also cut.

FIG. 4 is a vertical sectional front view of another embodiment.

FIG. 5 is a view similarly showing a usage state.

[Explanation of symbols]

 1 Water tap 2 Outlet side pipe 3 Water saving valve 4 Outer collar 5 Inner cylinder with bottom 6 Outer cylinder 7 Water passage hole 11 Valve 12 Water passage hole

Claims (4)

[Claims] 1. A water-saving valve used by being inserted into an outlet side pipe of a water faucet, wherein the upper part of the outer cylinder is tightly fitted to the cylindrical upper part of a bottomed inner cylinder having an outer collar at the mouth, and A water flow hole is formed in the side wall of the cylinder, and a predetermined slit is provided between the outer wall of the inner cylinder below the upper edge of the water hole and the inner wall of the outer cylinder. Water saving valve. 2. The water saving valve for flow control according to claim 1, wherein the outer diameter of the outer cylinder is set to a size capable of being installed in the outlet side pipe of the water faucet. 3. The water-saving valve for flow rate adjustment according to claim 1, wherein the number of water passage holes is 2 to 4, and the water passage valve is provided on the side wall of the inner cylinder so as to be inclined downward and outward. 4. A water-saving valve for flow control according to claim 1, wherein a small water passage hole is provided at the bottom of the inner cylinder.