JPH09303580A - Stepless adjustment type constant flow rate valve - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the stepless adjustment type constant flow rate valve which is employed so as to be installed in the fluid pass of a city water line including water faucets. SOLUTION: In the stepless adjustment type constant flow rate valve, where there contains a first valve consisting member 2 which is equipped with a flange 5 at its one end side in the axial direction, and with at least a first fluid passing hole 6 penetrated through in the axial direction while being eccentrically located in the radial direction, a second valve consisting member 3 which is equipped with an abutting surface 8 at one end side in the axial direction, and with at least a second fluid passing hole 9 matching the first fluid passing hole of the first valve consisting member, and a connection means 4 connecting the first and second valve consisting members 2 and 3 in such a way that they can be rotated around a center position in the radial direction, and also that they can be fixed thereto. In this case, after the first and second valve consisting members 2 and 3 have been appropriately set at their rotating angular positions, they are thereby fixed thereto by the connection means 4. A fluid flow rate is thereby adjustable in a stepless manner by changing the opening area formed by the first and second fluid passing holes 6 and 9.

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 constant flow valve used by being installed in an outlet side flow passage including a flow control opening / closing plug such as a water faucet. The present invention relates to a stepless adjustable constant flow valve that is set and adjusted step by step, thereby making it possible to save water according to a use environment.

[0002]

2. Description of the Related Art As is well known, in a water supply system, a water faucet is attached to each terminal flow path, and water is discharged from a faucet according to the opening degree by operating the water faucet in the opening direction. Configured. Users of such water systems, even when using a small amount of water,
Often, water taps are opened wide and a large amount of water is discharged unnecessarily. Conventionally, regarding the use of such a water supply system, for the purpose of preventing wasteful discharge, water saving that attempts to limit the amount of discharged water by using the flow pressure with the increase in flow rate due to large opening of a water tap. Valve was developed,
Have been provided.

As a water supply system which is generally applied, a direct pressure system, a natural flow system, a pressure 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.

For example, in the case of the direct pressure method applied to general households, the connection of the pipes to be piped becomes complicated due to the difference in each floor plan, and the number of joint parts is increased. The amount of water coming out of the tap 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 amount of water output, for example, in order to determine the water amount, it is necessary to prepare several types of constant flow type water saving valves having different water output amounts. There was a big problem economically.

On the other hand, the conventional constant flow type 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.

[0007]

SUMMARY OF THE INVENTION Therefore, the present invention
Regarding a water-saving valve that is used by being installed in an outlet-side flow path that includes a flow control opening / closing plug such as a water tap, in particular, the discharge fluid flow rate is preset and set in advance so that an appropriate amount according to the use environment can be set. An object of the present invention is to provide a continuously variable constant flow valve that is configured to discharge water and thus enables water saving.

[0008]

In order to achieve the above-mentioned object, the present invention is specifically a constant flow valve which is used by being installed in a fluid passage in a water line including a water tap, in the axial direction. A first valve component member having a mounting flange on one end side thereof and having at least one first fluid passage hole penetrating in the axial direction at a radial concentric position; No. 1 valve component member has an abutment surface that abuts on the other axial end side, penetrates in the axial direction at the radial concentric position, and is aligned with the first fluid flow hole in the first valve component member. A second valve component having at least one second fluid passage hole, and the first valve component and the second valve component rotatably and fixed around a radial center position. And a connecting means for connecting possible, After setting the first valve constituent member and the second valve constituent member at the turning angular position as appropriate, the first valve constituent member and the second valve constituent member are fixed by the connecting means, and The opening area formed by the first fluid passage hole in the first valve component member and the second fluid passage hole in the second valve member member is displaced so that the fluid flow rate can be adjusted steplessly. Configure a continuously variable constant flow valve.

[0009]

The stepless adjustable constant flow valve according to the present invention constructed as described above operates as follows. First,
The connecting means is loosened, and the first valve component member and the second valve component member are relatively rotated to operate the first fluid flow hole in the first valve component member and the second valve component member. The opening area is set by adjusting the matching relationship of the second fluid circulation holes in the member, and in the set state, the first valve component member and the second valve component member are fixed by the connecting means. By adjusting and setting the opening area, the amount of water flowing out from the fluid outflow opening can be finely adjusted steplessly.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION The continuously variable constant flow valve according to the present invention will be described below in detail with reference to the specific embodiments shown in the drawings. FIG. 1 shows a concrete embodiment of a continuously variable constant flow valve according to the present invention, and FIG. 1A is a schematic plan view thereof.
Is a schematic side view thereof, FIG. 1C is a schematic bottom view thereof, FIG. 1D is a schematic side sectional view thereof, and FIG. 1E is a schematic vertical sectional view showing a state in which main constituent members are separated. It is a figure.

On the other hand, FIG. 2 shows another concrete embodiment of the continuously variable constant flow valve according to the present invention. FIG. 2A is a schematic plan view thereof, and FIG. 2C is a schematic side view, FIG. 2C is a schematic bottom view thereof, and FIG.
Is a schematic side sectional view thereof, and FIG. 2E is a schematic vertical sectional view showing a state in which main constituent members are separated.

Further, FIGS. 3A to 3C are schematic plan views showing examples of different constitutions of the fluid passage holes in the valve constituting member. FIG. 4 is a schematic vertical cross-sectional view showing a mode in which the continuously variable constant flow valve according to the present invention is mounted in a fluid flow path.

The stepless adjustable constant flow valve 1 according to the present invention is basically composed of a first valve constituent member 2, a second valve constituent member 3 and a connecting means 4 for connecting them. Has been done. In each of the illustrated embodiments, the first valve component 2 and the second valve component 3 are of circular cross section with a diameter D. The first valve component 2 is provided with a mounting flange 5 on one end side 2a in the axial direction, is at an eccentric position of a distance R in the radial direction from the center, and is at least one first penetrating in the axial direction. The fluid circulation hole 6 is provided.

On the other hand, the second valve component member 3 has an abutment surface 8 on one end side 3a in the axial direction that abuts an abutment face 7 on the other axial end 2b of the first valve component member 2. It is provided with at least one second fluid circulation hole 9 that is located at a concentric position with a distance R in the radial direction from the center and penetrates in the axial direction.

In the present invention, the first fluid passage hole 6 in the first valve constituting member 2 and the second fluid passage hole 9 in the second valve constituting member 3 are as in the embodiment shown in FIG. A pair of long circular arc holes, one long circular arc hole as in the embodiment shown in FIG. 2, three round holes as in the embodiment shown in FIG. 3A, and four round circles as in the embodiment shown in FIG. 3B. Hole, Figure 3C
Any of a pair of elliptical holes as in the embodiment shown in FIG. 1 and a pair of elliptical holes (not shown) may be used.

Further, in the present invention, the first fluid passage hole 6 in the first valve component member 2 and the second fluid passage hole 9 in the second valve component member 3 have the same shape. It is preferably configured. However, in the present invention, the first fluid flow hole 6 in the first valve component member 2 and the second fluid flow hole 9 in the second valve component member 3 are configured by combining different types of holes. It may be one.

In the present invention, the connecting means 4 is rotatable about the central position in the radial direction with the first valve constituting member 2 and the second valve constituting member 3 aligned in the radial direction. And to be fixedly connected. The connecting means 4 in the continuously variable constant flow valve according to the specific embodiment shown in FIG. 1 has a threaded portion 10 extending axially outward from the contact surface 7 of the first valve component 2. A hole 11 having a diameter d ₁ provided in the radial center of the second valve component 3 and a tightening nut member 12.
On the base side of the threaded portion 10 of the first valve component member 2, there is provided a shaft portion 13 having an outer diameter D ₁ which is rotatably fitted in a hole 11 of the second valve component member 3. There is.

On the other hand, the connecting means 4 in the continuously variable constant flow valve according to the concrete embodiment shown in FIG. 2 includes a bolt member 14, a tightening nut member 15, and a diameter of the first valve component member 2. A hole 16 having a diameter d ₁ provided at the center of the direction,
Diameter d ₁ provided at the radial center of the second valve component 3
And the hole 17 of the. On the base side of the bolt member 14, the hole 16 in the first valve component 2 is provided.
And a shaft portion 18 having an outer diameter D ₁ which is rotatably fitted into the hole 17 in the second valve component member 3.

Further, the present invention also includes a configuration in which an O-ring 19 is provided between the contact surface 7 of the first valve component member 2 and the contact surface 8 of the second valve component member 3. . The O-ring 19 is for ensuring liquid tightness between the contact surface 7 of the first valve component 2 and the contact surface 8 of the second valve component 3, As in the specific embodiment shown in FIG. 1, the groove 20 provided in the contact surface 7 of the first valve component 2 and the contact surface 8 of the second valve component 3 are provided. The O-ring 19 is arranged in the groove 21.

The stepless adjustable constant flow valve 1 according to the present invention has the mounting flange 5 of the first valve component 2 between the fluid flow channel components 22 and 23 as shown by the phantom line in FIG. It can be attached and detached very easily by sandwiching the pinch and tightening the cap nut 24.

In the stepless adjustable constant flow valve 1 of the present invention having the above-described structure, the first valve component member 2 and the second valve component member 3 are appropriately set at the turning angular position, and then the The first valve component member 2 and the second valve component member 3 are fixed by a connecting means, and the first fluid flow hole 6 in the first valve component member 2 and the second valve component member 3 are fixed. The opening area formed by the second fluid passage hole 9 can be displaced to adjust the fluid flow rate steplessly.

[0022]

INDUSTRIAL APPLICABILITY The stepless adjustable constant flow valve of the present invention having the above-described structure can be applied to the outlet side flow path of an existing water faucet as it is without any design change. The installation work and the removal work are extremely easy.
The amount of water discharge according to the application is preset by the adjustment setting of the opening area formed by the first fluid circulation hole 6 in the valve component 2 and the second fluid circulation hole 9 in the second valve component 3. It can be said that it is extremely effective in that it can be used as it is, further, that no special technique is required for its attachment, and that the structure is extremely simple.

[Brief description of drawings]

1 shows one specific embodiment of a continuously variable constant flow valve according to the present invention, and FIG.
Is a schematic plan view thereof, FIG. 1B is a schematic side view thereof, FIG. 1C is a schematic bottom view thereof, FIG. 1D is a schematic side sectional view thereof, and FIG. 1E is a main constituent member. It is a schematic longitudinal cross-sectional view showing a state in which the is separated.

2 shows another specific example of the continuously variable constant flow valve according to the present invention, and FIG.
Is a schematic plan view thereof, FIG. 2B is a schematic side view thereof, FIG. 2C is a schematic bottom view thereof, FIG. 2D is a schematic side sectional view thereof, and FIG. 2E is a main constituent member. It is a schematic longitudinal cross-sectional view showing a state in which the is separated.

3A to 3C are schematic plan views showing examples of different configurations of fluid passage holes in a valve component member.

FIG. 4 is a schematic vertical cross-sectional view showing a mode in which a continuously variable constant flow valve according to the present invention is mounted in a fluid passage.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Continuously adjustable constant flow valve 2 1st valve component member 3 2nd valve component member 4 Connecting means 5 Mounting flange 6 1st fluid circulation hole 7 Contact surface of 1st valve component member 8 2nd Abutment surface of valve component 9 Second fluid flow hole 10 Screw portion 11 Hole of second valve component 12 Tightening nut member 13 Shaft portion 19 O-ring 20, 21 O-ring receiving groove 22, 23 Fluid flow path Component 24 Cap nut

Claims (1)

[Claims] 1. A constant flow valve which is used by being installed in a fluid flow path in a water flow path line including a water tap, wherein a mounting flange is provided on one end side in the axial direction, and the radial direction eccentric position is in the axial direction. A first valve component having at least one first fluid passage hole penetrating therethrough, and an abutment surface on one end side in the axial direction that abuts on the other end side in the axial direction of the first valve component A second valve component having at least one second fluid passage hole which is radially eccentric and axially penetrates, and which is aligned with the first fluid passage hole of the first valve component member. And a connecting means for connecting the first valve constituent member and the second valve constituent member so as to be rotatable and fixable about a radial center position. The valve component and the second valve component are appropriately set to the rotation angle position. After, the first by the connecting means 1
The valve component member and the second valve component member of
That the opening area formed by the first fluid passage hole in the valve component member and the second fluid passage hole in the second valve member member is displaced so that the fluid flow rate can be adjusted steplessly. A stepless adjustable constant flow valve.