JP2639634B2 - Pressurized stepless adjustable constant flow water saving valve - Google Patents

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 used in an outlet-side flow passage including a flow control valve such as a faucet. In addition, the present invention relates to a pressurized, stepless, constant flow, constant flow, water-saving valve that enables water saving according to the use environment.

[0002]

2. Description of the Related Art As a water supply system generally applied, a direct pressure system, a natural fluid pressure system, a pressurized pump system and the like are known. The direct pressure method is a method of applying pressure from a water purification plant with a pump and sending it with a gradient, and the natural flow pressure method is a method of temporarily storing the sent water in a tank and sending it out with a natural flow. In addition, the present invention is mainly applied to a building having four or more floors and the like, and the pressurized pump system is a system in which water pressure is added by a pressure pump. Regarding the latter method, the amount of water coming out of the faucet at each point is irregular and irregular regardless of the direct pressure method, the natural flow pressure method, and the pressure pump method.

[0003] For example, in the case of the direct pressure system applied to ordinary households, the connection of pipes to be piped is complicated due to the difference in each floor plan, and the number of joint parts increases, so that the difference in the inner diameter in the flow path causes The amount of water coming out of the faucet varies. In addition, since the water pressure changes depending on the height of the rising pipe, the amount of water pushed out also differs. As a matter of course, the height and layout of each home building are different, and the water amount and the water pressure are different depending on those factors. Conventionally, as described above, it is impossible to make the amount of water constant or to change the amount of water used for each faucet, and a large amount of water has been wasted. For this reason, constant flow rate water saving valves that can set the amount of water used at each location have been developed and provided.

However, since the conventional constant flow type water saving valve has a fixed water discharge amount, for example, in order to determine the water amount, it is necessary to prepare several types of constant flow type water saving valves which output different amounts of water. It had a big problem economically.

On the other hand, a conventional constant flow rate water saving valve is:
Since the amount of water discharged differs depending on the product, a specialist worker goes to the work site, removes the washing lantern, measures the amount of water with a water meter, measures the water pressure, and saves a fixed amount of water depending on the intended use. At present, the valve is installed. In addition, if it is desired to change the amount of water after installation, it is necessary to go out again and replace it with another water saving valve, which is very wasteful.

[0006]

SUMMARY OF THE INVENTION Therefore, the present invention
Regarding the water-saving valve that is used by being attached to the outlet side flow path including the flow control opening / closing tap such as a faucet, in particular, the discharge fluid flow rate is adjusted steplessly in advance, and thereby, an appropriate amount according to the use environment is adjusted. It is an object of the present invention to provide a pressurized, stepless, constant flow, constant flow water-saving valve which is configured to be able to discharge water, thereby enabling water saving.

[0007]

In order to achieve the above object, the present invention specifically relates to a water-saving valve which is used by being attached to an outlet-side flow passage of a water faucet. A cylindrical body having a fluid inlet opening and having a reference end at the other end in the axial direction, having a cylindrical portion having an inner diameter r between the fluid inlet opening and the reference end; A valve body having a plurality of fluid outflow openings extending in the axial direction at predetermined distances from the reference end at a distance L from the reference end, and an axial direction inside the valve body. A spherical valve body having an outer diameter R (R ≒ r) movably accommodated in the valve body and a support surface on the reference end side of the valve body for supporting the spherical valve body; The valve body is moved from the reference end to a distance L _{1 to a} distance L _n (where L ₁ > L ≧ L _n )
And a spherical valve element supporting position adjusting means for supporting the steplessly movable adjustment in the axial direction within the range of, and by adjusting and setting the supporting position of the spherical valve element, the fluid is supplied by the spherical valve element. By changing the opening area of the outflow opening, a pressurized stepless adjustable constant flow water-saving valve capable of adjusting the amount of fluid outflow is constituted.

[0008]

The pressurized stepless adjustable constant flow water-saving valve according to the present invention configured as described above operates as follows. First, the spherical valve body support position adjusting means provided on the reference end side of the valve body is adjusted and set, and the spherical valve body disposed inside the valve body is positioned and set at an appropriate position in the axial direction of the valve body. The opening area of the plurality of fluid outflow openings provided on the peripheral wall of the cylindrical portion of the valve body changes according to the set position of the spherical valve body disposed inside the valve body, and the amount of water flowing out from the fluid outflow opening is finely adjusted. In this case, the flowing water from the fluid inlet opening of the valve body is stably and reliably discharged from the fluid outlet opening so as to be caught around the spherical valve body.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a pressurized stepless adjustable constant flow water saving valve according to the present invention will be described in detail based on a specific embodiment shown in the drawings. FIG. 1 shows a specific example of a pressurized stepless adjustable constant flow water-saving valve according to the present invention. FIG. 1A is a schematic side view thereof, and FIG. FIG. 1C is a schematic bottom view of the embodiment shown in FIG. 1C, as viewed from the side provided with the spherical valve element support position adjusting means. FIG. 1C shows the embodiment shown in FIG. It is a schematic longitudinal cross-sectional view shown by a cross section.

On the other hand, FIG. 2 shows a specific embodiment of the pressurized stepless adjustable constant flow water saving valve according to the present invention.
FIG. 9 is a schematic side view showing three different embodiments of the spherical valve element support position adjusting means, partially cut away.

The pressurized stepless adjustable constant flow rate water-saving valve 1 according to the present invention has a basic structure and a valve body 2 and a spherical valve body 3 housed in the valve body 2 so as to be movable in the axial direction. And a spherical valve element support position adjusting means 4 for supporting the spherical valve element 3 so as to be able to adjust the movement in the axial direction steplessly in the valve main body 2. In the embodiment shown in the figure, an upper stopper member 5 is provided on the upper end opening side of the valve main body 2 to limit the axial movement of the spherical valve body 3.

The upper stopper member 5 is connected to the valve body 2.
After the spherical valve body 3 is accommodated therein, the valve body 2 is fixed to one end side 2a of the valve body 2 in the axial direction to form a fluid inlet opening 6. The upper stopper member 5 limits the axial movement of the spherical valve element 3 housed in the valve body 2 and, when a fluid pressure is applied to the valve 1 in the opposite direction, the spherical valve element 3 Valve seat surface 5a of the upper stopper member 5
And closes the fluid inlet opening 6 to prevent backflow of the fluid.

The valve body 2 is a cylindrical body having a fluid inlet opening 6 formed by an upper stopper member 5 at one end 2a in the axial direction and a reference end 7 at the other end 2b in the axial direction. A cylindrical portion 8 having an inner diameter r between the inlet opening 6 and the reference end 7;
And the peripheral wall 9 of the cylindrical portion 8 is provided with, for example, four fluid outflow openings 10 extending in the axial direction at predetermined angular intervals at a distance L from the reference end 7. Has become.

On the other hand, the spherical valve element 3 is accommodated in the cylindrical portion 8 of the valve main body 2 so as to be movable in the axial direction. The inside of the cylindrical portion 8 is formed of a sphere having a slightly smaller diameter (R ≒ r) in the axially movable range with respect to the inner diameter r of the cylindrical portion 8.

Next, the configuration of the spherical valve body support position adjusting means 4 which is one feature of the pressurized stepless adjustable constant flow water saving valve 1 according to the present invention will be described. In one embodiment shown in FIG. 1, the spherical valve body support position adjusting means 4 is
A screw member 12 is screwed into a screw hole 11 provided on the reference end 7 side of the valve body 2, and a nut member 13 is screwed into the screw member 12 outside the valve body 2. In one example, the screw member 12 has a support surface 14 for supporting the spherical valve element 3 at one end 12a, and the other end 12b
In addition, a hexagonal hole 15 for a hexagonal rod wrench is provided.

In the above embodiment, the screw member 1
Numeral 2 is axially movable by rotation, and moves the spherical valve element 3 supported on the spherical valve element supporting surface 14 of the screw member 12 by a distance L ₁ from the reference end 7 in accordance with the amount of rotation. to the axial direction in the range of the distance L _n and it is capable of moving adjustably supported steplessly. The screw hole 11 provided on the reference end 7 side of the valve body 2 and the nut member 13 function as a so-called double nut, so that the screw member 12 can be firmly fixed to the valve body 2. .

[0017] In the embodiment shown in the drawings, the spherical valve body support positioning means 4 is provided with a scale 16 for setting the axial movement amount of the range of the distance L ₁ to the distance L _n. The scale 16 is a rotation angle scale for setting the axial movement amount of the screw member 12 according to the rotation amount of the screw member 12. In the figure, reference numeral 17 denotes a drain opening, for example, provided with four holes having a diameter of about 2 mm.

In a preferred embodiment, the screw member 12, M4, when using the screw pitch 0.5, longest distance _{L 1 = 7.7 + (R /} 2), is rotated once the screw from the maximum distance L ₁ Distance L ₂ = 7.2 + (R / 2), the distance L ₃ = 6.7 + (R / R) obtained by rotating the screw twice from the longest distance L _1.
2), the distance was 4 rotating the screw from maximum distance L ₁ L ₄ =
5.7+ (R / 2), distance or shortest distance was 5 rotation and 72 ° rotation of the screw from the maximum distance _{L 1 L n = 5.1 + (} R
/ 2) could be set. The screw member, in the case of setting the maximum distance L _1, 6.0 L / min, the distance L ₂
When set to, if set to 8.0 liters / minute, a distance L _3, 10.0 l / min, in the case of setting the distance L _4, 13.0 liters / minute, the shortest distance L _n When set, a water release of 15.0 l / min was obtained.

In the above embodiment, the spherical valve body 3
And the spherical valve body support position adjusting means 4 is constituted by another member, whereas in another embodiment, the spherical valve body support position adjusting means The spherical valve element 3 may be integrally connected.

On the other hand, another embodiment of the spherical valve element supporting position adjusting means 4 shown in FIG. 2 will be described. The spherical valve element support position adjusting means 4A according to the second embodiment shown in FIG. 2A comprises a shaft 19 inserted into a hole 18 provided on the reference end 7 side of the valve body 2 and a lock pin 20. I have. In one example, the shaft 19 includes a plurality of recesses 21 spaced at a predetermined interval in the axial direction, and the lock pin 20 has, at one end thereof, a pin tip 2 that engages with the recess 21.
It consists of two.

The spherical valve body support position adjusting means 4B according to the third embodiment shown in FIG. 2B is provided with a rotary shaft 25 at an eccentric position of the disk member 24, and the rotary shaft 25 is connected to the reference end 7 of the valve main body 2. It is configured such that it is inserted into a hole 26 provided in the peripheral wall and the level of the spherical valve element supporting surface is displaced by rotating.

The spherical valve element support position adjusting means 4C according to the third embodiment shown in FIG. 2C comprises a bar member 27 having a spherical valve element support surface 28 at one end. Into the hole 29 provided in the peripheral wall on the reference end 7 side of
The level of the spherical valve body supporting surface is displaced by moving in the inclined direction, and is fixed by an appropriate bonding means after the movement.

[0023]

The pressurized, stepless, constant flow, constant flow water-saving valve of the present invention having the above structure can be applied to the outlet side flow path of an existing faucet without any change in design. The point that the mounting work and the removal work in applying the application are extremely simple, and furthermore, the water discharge amount can be set in advance according to the application by adjusting the spherical valve body support position adjusting means, and used.
In addition, no special technology is required for its installation, and in addition, it ensures that a proper amount of water is stably and reliably secured even when the faucet is fully opened, and that excessive and unnecessary water can be prevented. Can be said to be extremely effective.

[Brief description of the drawings]

FIG. 1 shows a specific embodiment of a pressurized stepless adjustable constant flow water saving valve according to the present invention, FIG. 1A is a schematic side view thereof, and FIG. FIG. 1C is a schematic bottom view as seen from the side where the spherical valve element supporting position adjusting means is provided. FIG.
It is a schematic longitudinal cross-sectional view shown by a cross section along line -C.

FIGS. 2A, 2B and 2C show a specific embodiment of a pressurized stepless adjustable constant flow water saving valve according to the present invention, partially showing three different embodiments of a spherical valve element support position adjusting means. It is a schematic side view shown broken.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Pressurization stepless adjustable constant flow water saving valve 2 Valve body 3 Spherical valve body 4 Spherical valve body support position adjusting means 5 Upper stopper member 6 Fluid inlet opening 7 Reference end 8 Cylindrical part 9 Peripheral wall 10 Fluid outflow opening 11 Screw hole 12 Screw member 13 Nut member 14 Spherical valve body support surface 16 Scale r Inner diameter of cylindrical part R Outer diameter of spherical valve body L Distance between reference end and center of fluid outflow opening

Claims (2)

(57) [Claims] 1. A water-saving valve attached to an outlet-side flow path of a water faucet, the cylindrical body having a fluid inlet opening at one axial end and a reference end at the other axial end. A cylindrical portion having an inner diameter r between the fluid inlet opening and the reference end, and a predetermined angular interval on the peripheral wall of the cylindrical portion at a distance L from the reference end. A valve body having a plurality of fluid outflow openings extending crosswise in the axial direction, and a spherical valve having an outer diameter R (R （r) housed movably in the axial direction inside the valve body. And a support surface on the reference end side of the valve body for supporting the spherical valve element, wherein the spherical valve element is disposed at a distance L from the reference end.
A spherical valve body supporting position adjusting means for supporting the movable body in a stepless manner in the axial direction within a range of _{1 to a} distance L _n (where L ₁ > L ≧ L _n ); By adjusting and setting the support position,
A pressurized stepless adjustable constant flow water-saving valve, characterized in that the opening area of the fluid outflow opening is changed by the spherical valve body so that the fluid outflow amount can be adjusted. 2. The pressurized, stepless, constant flow, constant flow rate water saving according to claim 1, wherein the spherical valve element is integrally connected to a support surface of the spherical valve element support position adjusting means. valve.