JP2013177802A - Flow rate control mechanism - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a flow rate control mechanism which simplifies the whole structure by making the number of components small, and which can perform flow control of water, discharged to the outside, in a wide range.SOLUTION: A flow rate control mechanism includes a flow control part and a discharge opening joint part capable of housing the flow control part. The flow control part includes a base equipped with a water passage hole, a rotary table capable of covering the water passage hole, and rotary table locking means for rotatably locking the rotary table to the base. The discharge opening joint part includes a base supporting part which supports the base.

Description

The present invention relates to a flow rate control mechanism that controls the flow rate of water discharged from a water supply.

When water is discharged from the water supply to the outside, the water supply user operates the faucet / cock based on information such as the momentum of the water or the collision sound between the water and the sink. However, the determination of whether or not a desired amount of water is being discharged from the water supply depends on the subjectivity of the water user. For this reason, in most cases, water exceeding the sense of the water user is discharged. In order to solve such problems, many developments have been made on the water-saving technology of water discharged from the water supply.

As the water-saving technique, the invention described in Patent Document 1 below is disclosed. The technology of Patent Document 1 is a water control system that includes a water flow board in which a predetermined number of water flow holes are provided in a water flow chamber through which water supplied from a water supply is passed, and a water control board that is rotatably superimposed on the water flow board. The present invention relates to a flow rate control valve that controls the amount of water discharged from the water supply by adjusting the opening area of the water flow hole of the water flow board by rotating the water control board.

JP 2006-77404 A

However, in the invention described in Patent Document 1, in order to fix the water control piece including the water flow board and the water control board in the joint metal fitting, a dedicated bush must be provided, and the structure inside the joint metal fitting becomes complicated, In addition, there is a problem that the number of parts increases. In addition, there is a problem in terms of processing cost accordingly. Furthermore, the upper limit of the opening area of the water passage holes provided in the water passage is low, and as a result, the range in which the flow rate can be adjusted is narrow. Therefore, when it is necessary to store a relatively large amount of water, there is a problem that it is not possible to perform an appropriate operation according to the usage needs of the water service user, for example, it takes time to obtain a desired amount of water.

In view of the above problems, the present invention reduces the number of parts, simplifies the overall structure, widens the range of adjustment of the flow rate of water discharged to the outside, and is suitable for various usage needs of water users. An object of the present invention is to provide a flow rate control mechanism that can meet the above requirements.

The flow rate control mechanism according to the present invention for solving the above problems is
A flow rate adjusting unit for adjusting the flow rate of water supplied from the water supply,
A cylindrical discharge port joint attached to the end of the water discharge port,
The flow rate adjuster is
A base with a water passage hole;
A turntable capable of covering the water passage hole;
Turntable locking means for locking the turntable with respect to the base so as to be rotatable;
With
The discharge port joint portion can accommodate the flow rate adjusting portion,
The board | substrate support part which supports the said board | substrate is provided in the inside, It is characterized by the above-mentioned.

Moreover, it is preferable that the said base | substrate support part has a taper-like shape from which an internal diameter becomes narrow toward a water discharge side. Furthermore, the rotating disk is locked on the base by the rotating disk locking means so that the centers of the rotating disk and the base overlap, and the shape of the rotating disk is drawn with the center as the origin. Preferably, the shape of the water passage hole of the base is a fan shape drawn with the center of the base as the origin.

According to the present invention, it is not necessary to add an additional dedicated component when the flow rate adjusting unit is accommodated in the discharge port joint, so that the number of components can be greatly reduced. As a result, the overall structure of the flow rate control mechanism can be simplified. Furthermore, the range of adjustment of the flow rate of the water discharged to the outside can be expanded from the shape of the water passage hole and the rotating disk of the base. Therefore, it is possible to provide a flow rate control mechanism that can appropriately respond to various needs of water users.

The figure which shows the use condition of embodiment which concerns on this invention. The disassembled perspective view of embodiment which concerns on this invention. The vertical sectional view of the embodiment concerning the present invention. The vertical sectional view of the embodiment concerning the present invention. The top view of the flow volume adjustment part which concerns on 1st embodiment. The figure which shows the difference in the flow control range of this embodiment and a prior art. The top view of the flow volume adjustment part which concerns on 2nd embodiment. The top view of the flow volume adjustment part which concerns on 2nd embodiment of the state which accumulated the rotating disk on the base | substrate. The figure which shows the change of the opening area of the hole for water flow which concerns on 2nd embodiment. The figure which shows the relationship between the rotation angle of the turntable which concerns on 2nd embodiment, and the opening area of the hole for water flow. The top view of the flow volume adjustment part which concerns on 2nd embodiment. The top view of the flow volume adjustment part which concerns on 2nd embodiment. The graph and table | surface which show the change of the discharge amount for every dynamic water pressure. The top view of the flow volume adjustment part which concerns on 3rd embodiment. The figure which shows the change of the opening area of the hole for water flow which concerns on 3rd embodiment.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings. However, the present invention can be implemented in many different modes and should not be construed as being limited to the description of the embodiments described below.

FIG. 1 is a diagram showing a use state of the first embodiment according to the present invention. A thread groove 212 that can be screwed into a thread groove formed in the water discharge port 21 is provided on the inner wall of the end portion of the discharge port joint portion 200 of the present embodiment (shown in FIG. 2). As shown in FIG. 1, the flow rate control mechanism 10 according to the present invention is attached to a water discharge port 21 by engaging both screw grooves. In addition, even if the attachment means to the discharge outlet 21 of the water supply provided in the edge part of the discharge outlet junction part 200 is other than the said screw groove 212, if it is a structure and a mechanism which does not leak the water supplied from the water supply 20 Anything is acceptable.

FIG. 2 is a perspective view in which components constituting the embodiment according to the present invention are disassembled on the vertical axis. As shown in FIG. 2, the present invention includes a flow rate adjusting unit 100, a discharge port joint 200, and the like. The flow rate control unit 100 includes a base 110 having a water passage hole 111, a turntable 120 that can cover the water passage hole 111, and a turntable mechanism that rotatably locks the turntable 120 with respect to the base 110. And a stopping means 130.

An insertion hole 112 of the turntable locking means 130 is provided in the approximate center of the base 110. Similarly, an insertion hole 121 of the rotating disk locking means 130 is also provided at the approximate center of the rotating disk 120. By passing the turntable locking means 130 through the insertion holes 112 and 121 in a state where the base 110 and the turntable 120 are vertically stacked, the turntable 120 is rotatably locked to the base 110. The

In this embodiment, the rotating disk locking means 130 is a combination of a bolt and a nut, but the present invention is not limited to this as long as the same function is achieved. For example, a locking member having a shaft portion inserted through the insertion holes 112 and 121 of the base 110 and the turntable 120 and an elastic body having a biasing force with respect to the height direction is disposed in the lower portion of the base 110. The turntable 120 may be locked to the base 110 by this locking member. Specifically, one end of the shaft portion of the locking member is fastened to the turntable 120 so that the base 110 is sandwiched between the elastic body and the turntable 120. As a result, the base 110 that receives the bias from the elastic body presses the turntable 120, and the turntable 120 is locked to the base 110. In addition, when releasing the latching of the turntable 120, the turntable 120 is moved in the height direction so as not to be pressed from the base 110 and rotated.

On the other hand, the discharge port joint portion 200 has a cylindrical shape with an open upper surface, and includes a flow rate adjustment unit accommodation body 210 that accommodates the flow rate adjustment unit 100 and a foam accommodation body 220 that accommodates foam described later. . As a method of joining the two members, a method of providing a screw groove in each of them and joining them by screwing them together is conceivable, but it is not particularly limited to this. By adopting such a structure, when removing impurities and foreign matter captured in tap water captured by foam, it is only necessary to release the connection of the flow rate adjusting unit container 210 and remove it from the foam container 220. Foam cleaning can be carried out without being overwhelmed. However, the discharge port joint portion 200 may be formed as one member without being divided into the flow rate adjusting portion container 210 and the foam container 220.

The flow rate adjustment unit container 210 includes the base support unit 211 that supports the base 110 of the flow rate control unit 100 in a predetermined posture (preferably, a posture parallel to the horizontal cross section of the discharge port joint 200), and the above-described base support unit 211. The configuration includes a thread groove 212 that meshes with the thread groove of the discharge port 21 of the water supply 20. As shown in FIG. 3, the shape of the base support portion 211 may be a shape that rises stepwise inward from the inner wall of the flow rate adjustment unit container 210, but as shown in FIG. In the case of FIG. 4, it is preferable to have a tapered shape that becomes narrower from the upper side to the lower side of the drawing. By adopting such a tapered shape, a drag force acts on the base 110 supported by the base support part 210 inward from both side portions thereof, and the base 110 can be fixed and supported more firmly. In addition, with such a structure, there is a problem that the position of the base becomes unstable due to the water pressure when water is passed without using a special member for supporting and fixing the base 110. Therefore, the internal structure can be greatly simplified.

Next, with reference to FIG.3 and FIG.4, this embodiment of the state in which the flow volume adjustment part 100 was accommodated in the discharge outlet junction part 200 (flow volume adjustment part accommodating body 210) is demonstrated. FIG. 3 is a vertical cross-sectional view of the state in which the flow rate control mechanism 10 according to the present embodiment is attached to the water discharge port 21. The screw groove 212 of the discharge port joint portion 200 is engaged with the screw groove of the discharge port 21 of the water supply 20 so that the whole does not fall.

Here, the peripheral edge of the base 110 abuts against the side surface of the base support part 211, so that the position of the flow rate adjusting part 100 is fixed inside the discharge port joint part 200 (flow rate adjusting part accommodating body 210). ing. On the other hand, as shown in FIG. 3 and FIG. 4, in this embodiment, the sealing member 191 is provided between the discharge port 21 of the water supply 20 and the upper surface of the base support part 211, and the flow rate adjustment part container 210 and the foam. Although the foam fixing member 192 is interposed between the container 220 and the structure, such a structure can prevent water leakage when discharging tap water to the outside. However, it is needless to say that the present invention is not limited to the one provided with the sealing member 191 and the foam fixing member 192. In this embodiment, the sealing member 191 and the foam fixing member 192 are ring-shaped rubber packings, but are not limited to this as long as they perform the same function.

Next, the detail of the flow volume adjustment part 100 which concerns on 1st embodiment is demonstrated. FIG. 5 is a top view of the flow rate adjusting unit 100. As shown in FIG. 5, the turntable 120 of the flow rate adjusting unit 100 is rotated by a predetermined angle from the initial position (the initial position means that the locking position of the turntable 120 covers all the water passage holes 111, However, the initial position described here is limited to the case of this embodiment, and another initial position is set in other embodiments described later.) As a result, a part of the water passage hole 111 provided in the base 110 is exposed, and a water passage having a predetermined area is formed. The water user can rotate the turntable 120 and change the exposed area of the water passage hole 111 according to the application, thereby discharging water at a desired flow rate from the water supply to the outside. The rotating means of the turntable 120 according to this embodiment uses a hexagon wrench, pliers, screwdriver, etc. to release the lock of the turntable 110 of the turntable locking means 130 and rotate the turntable 110. However, it is not limited thereto.

For example, the shapes of the water passage hole 111 and the turntable 120 of the flow rate adjusting unit 100 are as shown in FIGS. The shape of the water passage hole 111 shown in FIG. 5A is a semicircle drawn with the center of the base 110 as the origin. Similarly, the shape of the turntable 120 is also a semicircle drawn with the center of the base 110 as the origin. At the center of the base 110 (the origin of the water passage hole 111 and the turntable 120), the turntable locking means 130 is disposed from above the turntable 120. By making the radius of the turntable 120 slightly longer than the radius of the water passage hole 111, the opening area of the water passage hole 111 can be zero when the turntable 120 is in the initial position.

By making the water passage hole 111 and the turntable 120 of the flow rate adjusting unit 100 into a semicircular shape that is easy to process, the burden on the member processing is reduced as compared with the flow rate adjusting member according to the related art. Further, since the water passage hole 111 has a semicircular shape, the range of the adjustable flow rate is expanded and the adjustment is continuously performed as compared with the conventional technique in which a plurality of small diameter water passage holes are provided. be able to. Thereby, it becomes possible to appropriately meet various usage needs of water users without impairing the water-saving function (the flow rate control range between the present invention and the prior art is shown in FIG. 6).

The shapes of the water passage hole 111 and the rotating disk 120 shown in FIG. 5B are rectangular (rectangular in the drawing). As shown in FIG. 5B, the midpoint of one side of the water passage hole 111 and the turntable 120 is arranged at the center of the base 110. Further, the rotating disk locking means 130 is disposed at the location. Thereby, the turntable 120 is in a state in which it can rotate around the midpoint of one side. The shapes of the water passage hole 111 and the turntable 120 of the flow rate adjusting unit 100 are not limited to this as long as the flow rate of water supplied from the water supply 20 can be adjusted.

As described above, the flow rate control mechanism 10 according to the present invention has a simple configuration in which the flow rate adjustment unit 100 is only accommodated in the discharge port joint portion 200. Therefore, the number of parts can be greatly reduced as compared with the prior art. Therefore, it is possible to reduce the work cost and the manufacturing cost and improve the yield. Further, due to the action of the base support unit 210 and the like, the flow rate adjusting unit 100 is firmly supported and fixed even when receiving the pressure of water passing through the inside of the flow rate control mechanism 10. Thereby, water can be stably discharged | emitted outside, without changing the preset flow volume.

Next, a second embodiment according to the present invention will be described with reference to FIG. The main points different from the first embodiment are a base plate and a turntable related to the flow rate adjusting unit. FIG. 7 is a top view of the base 710 and the turntable 720 according to the second embodiment. As shown in FIG. 7A, the base 710 is provided with a water passage hole 711 having a central angle of 210 °. The water passage hole 711 includes a plurality of projecting portions 712 that project from a predetermined position of the sector-shaped arc that forms the contour thereof toward the center in the radial direction. In the present embodiment, two protrusions 712 are provided. Further, each protrusion 712 has a different radial length. In addition, the dashed-dotted line of Fig.7 (a) shows the periphery (contour) of the hole 711 for water flow in the state without the protrusion part 712. FIG. That is, the region surrounded by the one-dot chain line and the solid lines 712A and 712B is the protruding portion 712.

On the other hand, as shown in FIG. 7B, the turntable 720 of the present embodiment includes a main fan portion 721 that covers a water passage hole 711 provided in the base 710 and an edge of the main fan portion 721 ( And an enlarged diameter portion 722 extending outward from a predetermined position of the arc). Thus, by providing the enlarged diameter portion 722, it is possible to make a state in which there is almost no gap generated between the peripheral edge of the turntable 720 and the base support portion 210 of the discharge port joint portion 200. Thereby, it is possible to prevent problems such as loosening of the locking of the turntable 720 due to an external force applied to the turntable 720 during rotation. However, even if the configuration of the rotating disk 720 does not include the enlarged diameter portion 722, it goes without saying that the covering function of the water passage hole 711 of the base 710 is not impaired.

Next, with reference to FIG. 8, the relationship between the rotation of the turntable 720 in the flow rate adjusting unit and the change in the opening area of the water passage hole 711 provided in the base 710 will be described. FIG. 8A is a diagram illustrating a case where the turntable 720 is rotated in the A direction. FIG. 8B is a diagram illustrating a case where the turntable 720 is rotated in the B direction. A dotted line drawn in FIGS. 8A and 8B shows a portion of the water passage hole 711 that is covered with the rotating disk 720. It should be noted that the position of the rotary disk 720 is the initial position in the present embodiment when it is in FIGS.

By rotating the turntable 720 from the initial position, the opening area of the water passage hole 711 changes, but the length in the radial direction of each protrusion 712 is different (the area of each protrusion 712 is also different). Therefore, even if the rotation angle from the initial position is the same between the case where the turntable 720 is rotated from the A direction and the case where it is rotated from the B direction, the opening area of the water passage hole 711 is different. . Therefore, regarding the opening area of the water passage hole 711, not only variations due to the rotation angle of the rotating disk 720 but also variations due to the rotation direction (A direction or B direction) can be considered.

Specifically, assuming that the rotation per 15 ° interval marked on the periphery of the base 710 is one unit, there are 13 ways in the A direction and 13 ways in the B direction, except for the four ways counted repeatedly. Depending on the rotation angle and rotation direction of the turntable 720, there are 22 variations of the hole area. A list of these opening areas is as shown in FIG. Thus, by providing a large number of variations of the aperture area, the aperture area of the water passage hole 711 can be changed continuously (smoothly) as shown in FIG. The relationship with the open area is shown in FIG.

However, the central angles of the water passage hole 711 and the main fan portion 721 of the present embodiment are not limited to those described above. For example, as shown in FIG. 11, a mode in which the central angle of the water passage hole 711 is 195 ° and the central angle of the main fan portion 721 is 180 ° is conceivable. In this case, there are a total of 24 variations of the opening area of the water passage hole 711, 12 patterns when the rotating disk 720 is rotated in the A direction and 12 patterns when the rotating plate 720 is rotated in the B direction. By appropriately combining the 24 variations in the same manner as described above, the opening area of the water passage hole 711 can be changed continuously (smoothly).

As described above, it is preferable that scales are written on the periphery of the base 710 at intervals of 15 °. This scale is for showing to a water service user etc. how much the turntable 720 has rotated. Thereby, according to rotation of the turntable 720, it becomes possible to provide a measure of the amount of change in the flow rate of water discharged from the water supply to the water supply user and the like, and the work burden in the flow rate adjustment can be reduced.

Further, instead of providing a scale on the periphery of the base 710, a mark line 713 may be provided on the surface of the base 710 as shown in FIG. Furthermore, it is preferable to provide a mark line 723 also on the surface of the rotating disk 720. Thereby, it becomes possible to show more clearly to the water service user how many times the turntable 720 has rotated. Note that a mark 714 may be provided on the surface of the base 710 for distinguishing which is the A direction or the B direction.

FIG. 13 shows the water discharge amount (per minute) when the water pressure (hereinafter referred to as “dynamic water pressure”) flowing through the water supply is changed with respect to the water supply provided with the flow rate control mechanism 10 according to the present embodiment. is there. Specifically, four types with different ratios (hereinafter referred to as “openings”) of the aperture area when the aperture area in a state where the rotating plate 720 does not cover the water passage hole 711 is 100%. Regarding the flow rate control mechanism 10, the result of testing the discharge amount for each dynamic water pressure is shown. In any of the flow rate control mechanisms 10 having different opening degrees, the water discharge amount increases smoothly each time the dynamic water pressure increases.

The table at the bottom of the graph of FIG. 13 shows the actual discharge amount. In most cases, the dynamic water pressure is a value determined for each facility or building such as a hospital. For example, by providing this table to a water user and preparing an environment where the dynamic water pressure of the water supply used can be grasped, the water user can easily determine the opening for obtaining a desired water discharge amount. be able to. Thereby, the further water-saving effect can be aimed at.

Next, a third embodiment according to the present invention will be described with reference to FIG. The main points different from the other embodiments described above are a base plate and a turntable according to the flow rate adjustment unit. FIG. 14 is a top view of the base 1210 and the turntable 1220 according to the third embodiment. As shown in FIG. 14A, the base 1210 according to the present embodiment is formed by 12 sector blocks having a central angle of 30 ° and an equal area. This fan-shaped block includes a water flow block provided with a water flow hole 1211 and a non-water flow block provided with no water flow hole 1211. On the other hand, as shown in FIG. 14B, the turntable 1220 according to the present embodiment has a fan shape with a central angle of 240 ° (that is, the central angle of the opening 1221 is 120 °).

When the turntable 1220 is disposed so as to overlap the base 1210, the fan-shaped block located below the opening 1221 of the turntable 1220 is exposed to the outside (in this embodiment, the central angle of the opening 1221 is 120 °. Because there are four net fan blocks exposed.) The water discharged from the water supply 20 passes through the water passage hole 1211 provided in the water passage block among the exposed fan-shaped blocks and is discharged to the outside.

Next, when the turntable 1220 is rotated around its center and the position of the opening 1221 is changed, the four sector blocks are exposed to the outside as described above. However, in this case, before and after the movement of the opening 1221, the combination of the four water passage blocks exposed to the outside and the non-water passage block is different. Accordingly, at this time, the total area of the water passage holes 1211 in the fan-shaped block exposed to the outside changes. That is, the flow rate of water discharged outside the water supply 20 changes.

As described above, the arrangement of the water passage blocks constituting the base 1210, the number of water passage holes 1211 provided in each water passage block, and the size of the diameter are appropriately devised to discharge the water to the outside of the water supply 20. It is possible to change the flow rate of the water continuously (smoothly). In this case, countless combinations of the arrangement of the water passage blocks, the number of water passage holes, and the size of the diameter are conceivable. Therefore, the flow rate adjustment unit created by appropriately adjusting the arrangement of the fan-shaped blocks and the like may be one that changes the flow rate of water in proportion to the rotation angle of the turntable 1220. Regardless of the rotation angle of 1220, the flow rate of water is continuously changed by the combination of fan blocks exposed to the outside (for example, the combination of fan blocks having the smallest flow rate: fan block 1, 2, 3, 4. Combination of fan blocks with the next smallest flow rate: Fan block 6, 7, 8, 9. Combination of fan blocks with the next lowest flow rate: sector block 11, 12, 1, 2, etc.) May be.

As shown to Fig.14 (a), the base | substrate 1210 which concerns on this embodiment is comprised by 12 fan-shaped blocks which use a water flow block as 1, 3, 4, 7, 9, 10 fan-shaped blocks. As shown in FIG. 14B, the total area of the exposed water passage holes 1211 can be continuously changed by rotating the turntable 1220 with the base 1210 having such a configuration, as a result. The flow rate of water discharged to the outside can be continuously changed (see FIG. 15C). In addition, although the center angle of the sector block which comprises the above-mentioned base | substrate 1210 is 120 degrees in this embodiment, it is not limited to this. Further, the central angle of the turntable 1220 is not limited to 240 °.

DESCRIPTION OF SYMBOLS 10 Flow control mechanism 100 Flow control part 110 Base 111 Water passage hole 120 Turntable 130 Turntable locking means 191 Sealing member 192 Foam fixing member 200 Discharge port joint part 210 Flow control part container 211 Base support part 212 Water discharge Screw groove 220 for attachment to the outlet Foam container 300 Foam 400 Water passage chamber 710 Base 711 Water passage hole 720 Turntable 1210 Base 1211 Water passage hole 1220 Turntable

The present invention relates to a flow rate control mechanism that controls the flow rate of water discharged from a water supply.

When water is discharged from the water supply to the outside, the water supply user operates the faucet / cock based on information such as the momentum of the water or the collision sound between the water and the sink. However, the determination of whether or not a desired amount of water is being discharged from the water supply depends on the subjectivity of the water user. For this reason, in most cases, water exceeding the sense of the water user is discharged. In order to solve such problems, many developments have been made on the water-saving technology of water discharged from the water supply.

As the water-saving technique, the invention described in Patent Document 1 below is disclosed. The technology of Patent Document 1 is a water control system that includes a water flow board in which a predetermined number of water flow holes are provided in a water flow chamber through which water supplied from a water supply is passed, and a water control board that is rotatably superimposed on the water flow board. The present invention relates to a flow rate control valve that controls the amount of water discharged from the water supply by adjusting the opening area of the water flow hole of the water flow board by rotating the water control board.

JP 2006-77404 A

However, in the invention described in Patent Document 1, in order to fix the water control piece including the water flow board and the water control board in the joint metal fitting, a dedicated bush must be provided, and the structure inside the joint metal fitting becomes complicated, In addition, there is a problem that the number of parts increases. In addition, there is a problem in terms of processing cost accordingly. Furthermore, the upper limit of the opening area of the water passage holes provided in the water passage is low, and as a result, the range in which the flow rate can be adjusted is narrow. Therefore, when it is necessary to store a relatively large amount of water, there is a problem that it is not possible to perform an appropriate operation according to the usage needs of the water service user, for example, it takes time to obtain a desired amount of water.

In view of the above problems, the present invention reduces the number of parts, simplifies the overall structure, widens the range of adjustment of the flow rate of water discharged to the outside, and is suitable for various usage needs of water users. An object of the present invention is to provide a flow rate control mechanism that can meet the above requirements.

The flow rate control mechanism according to the present invention for solving the above problems is
A flow rate adjusting unit for adjusting the flow rate of water supplied from the water supply,
A cylindrical discharge port joint attached to the end of the water discharge port,
The flow rate adjuster is
A base with a water passage hole;
A rotating disk that can cover the water passage hole and includes a main fan portion that covers the water passage hole and an enlarged diameter portion that extends outward from an edge of the main fan portion ;
Turntable locking means for locking the turntable with respect to the base so as to be rotatable;
With
The discharge port joint portion can accommodate the flow rate adjusting portion,
Provided with a base support part for supporting the base inside ,
The base support section is characterized Rukoto to have a tapered shape whose inner diameter becomes narrower toward the water outlet side from the water inlet side.

Moreover, it is preferable that the said base | substrate support part has a taper-like shape from which an internal diameter becomes narrow toward a water discharge side. Furthermore, the rotating disk is locked on the base by the rotating disk locking means so that the centers of the rotating disk and the base overlap, and the shape of the rotating disk is drawn with the center as the origin. Preferably, the shape of the water passage hole of the base is a fan shape drawn with the center of the base as the origin.

According to the present invention, it is not necessary to add an additional dedicated component when the flow rate adjusting unit is accommodated in the discharge port joint, so that the number of components can be greatly reduced. As a result, the overall structure of the flow rate control mechanism can be simplified. Furthermore, the range of adjustment of the flow rate of the water discharged to the outside can be expanded from the shape of the water passage hole and the rotating disk of the base. Therefore, it is possible to provide a flow rate control mechanism that can appropriately respond to various needs of water users.

The figure which shows the use condition of embodiment which concerns on this invention. The disassembled perspective view of embodiment which concerns on this invention. The vertical sectional view of the embodiment concerning the present invention. The vertical sectional view of the embodiment concerning the present invention. The top view of the flow volume adjustment part which concerns on 1st embodiment. The figure which shows the difference in the flow control range of this embodiment and a prior art. The top view of the flow volume adjustment part which concerns on 2nd embodiment. The top view of the flow volume adjustment part which concerns on 2nd embodiment of the state which accumulated the rotating disk on the base | substrate. The figure which shows the change of the opening area of the hole for water flow which concerns on 2nd embodiment. The figure which shows the relationship between the rotation angle of the turntable which concerns on 2nd embodiment, and the opening area of the hole for water flow. The top view of the flow volume adjustment part which concerns on 2nd embodiment. The top view of the flow volume adjustment part which concerns on 2nd embodiment. The graph and table | surface which show the change of the discharge amount for every dynamic water pressure.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings. However, the present invention can be implemented in many different modes and should not be construed as being limited to the description of the embodiments described below.

FIG. 1 is a diagram showing a use state of the first embodiment according to the present invention. A thread groove 212 that can be screwed into a thread groove formed in the water discharge port 21 is provided on the inner wall of the end portion of the discharge port joint portion 200 of the present embodiment (shown in FIG. 2). As shown in FIG. 1, the flow rate control mechanism 10 according to the present invention is attached to a water discharge port 21 by engaging both screw grooves. In addition, even if the attachment means to the discharge outlet 21 of the water supply provided in the edge part of the discharge outlet junction part 200 is other than the said screw groove 212, if it is a structure and a mechanism which does not leak the water supplied from the water supply 20 Anything is acceptable.

FIG. 2 is a perspective view in which components constituting the embodiment according to the present invention are disassembled on the vertical axis. As shown in FIG. 2, the present invention includes a flow rate adjusting unit 100, a discharge port joint 200, and the like. The flow rate control unit 100 includes a base 110 having a water passage hole 111, a turntable 120 that can cover the water passage hole 111, and a turntable mechanism that rotatably locks the turntable 120 with respect to the base 110. And a stopping means 130.

An insertion hole 112 of the turntable locking means 130 is provided in the approximate center of the base 110. Similarly, an insertion hole 121 of the rotating disk locking means 130 is also provided at the approximate center of the rotating disk 120. By passing the turntable locking means 130 through the insertion holes 112 and 121 in a state where the base 110 and the turntable 120 are vertically stacked, the turntable 120 is rotatably locked to the base 110. The

In this embodiment, the rotating disk locking means 130 is a combination of a bolt and a nut, but the present invention is not limited to this as long as the same function is achieved. For example, a locking member having a shaft portion inserted through the insertion holes 112 and 121 of the base 110 and the turntable 120 and an elastic body having a biasing force with respect to the height direction is disposed in the lower portion of the base 110. The turntable 120 may be locked to the base 110 by this locking member. Specifically, one end of the shaft portion of the locking member is fastened to the turntable 120 so that the base 110 is sandwiched between the elastic body and the turntable 120. As a result, the base 110 that receives the bias from the elastic body presses the turntable 120, and the turntable 120 is locked to the base 110. In addition, when releasing the latching of the turntable 120, the turntable 120 is moved in the height direction so as not to be pressed from the base 110 and rotated.

On the other hand, the discharge port joint portion 200 has a cylindrical shape with an open upper surface, and includes a flow rate adjustment unit accommodation body 210 that accommodates the flow rate adjustment unit 100 and a foam accommodation body 220 that accommodates foam described later. . As a method of joining the two members, a method of providing a screw groove in each of them and joining them by screwing them together is conceivable, but it is not particularly limited to this. By adopting such a structure, when removing impurities and foreign matter captured in tap water captured by foam, it is only necessary to release the connection of the flow rate adjusting unit container 210 and remove it from the foam container 220. Foam cleaning can be carried out without being overwhelmed. However, the discharge port joint portion 200 may be formed as one member without being divided into the flow rate adjusting portion container 210 and the foam container 220.

The flow rate adjustment unit container 210 includes the base support unit 211 that supports the base 110 of the flow rate control unit 100 in a predetermined posture (preferably, a posture parallel to the horizontal cross section of the discharge port joint 200), and the above-described base support unit 211. The configuration includes a thread groove 212 that meshes with the thread groove of the discharge port 21 of the water supply 20. As shown in FIG. 3, the shape of the base support portion 211 may be a shape that rises stepwise inward from the inner wall of the flow rate adjustment unit container 210, but as shown in FIG. In the case of FIG. 4, it is preferable to have a tapered shape that becomes narrower from the upper side to the lower side of the drawing. By adopting such a tapered shape, a drag force acts on the base 110 supported by the base support part 210 inward from both side portions thereof, and the base 110 can be fixed and supported more firmly. In addition, with such a structure, there is a problem that the position of the base becomes unstable due to the water pressure when water is passed without using a special member for supporting and fixing the base 110. Therefore, the internal structure can be greatly simplified.

Next, with reference to FIG.3 and FIG.4, this embodiment of the state in which the flow volume adjustment part 100 was accommodated in the discharge outlet junction part 200 (flow volume adjustment part accommodating body 210) is demonstrated. FIG. 3 is a vertical cross-sectional view of the state in which the flow rate control mechanism 10 according to the present embodiment is attached to the water discharge port 21. The screw groove 212 of the discharge port joint portion 200 is engaged with the screw groove of the discharge port 21 of the water supply 20 so that the whole does not fall.

Here, the peripheral edge of the base 110 abuts against the side surface of the base support part 211, so that the position of the flow rate adjusting part 100 is fixed inside the discharge port joint part 200 (flow rate adjusting part accommodating body 210). ing. On the other hand, as shown in FIG. 3 and FIG. 4, in this embodiment, the sealing member 191 is provided between the discharge port 21 of the water supply 20 and the upper surface of the base support part 211, and the flow rate adjustment part container 210 and the foam. Although the foam fixing member 192 is interposed between the container 220 and the structure, such a structure can prevent water leakage when discharging tap water to the outside. However, it is needless to say that the present invention is not limited to the one provided with the sealing member 191 and the foam fixing member 192. In this embodiment, the sealing member 191 and the foam fixing member 192 are ring-shaped rubber packings, but are not limited to this as long as they perform the same function.

Next, the detail of the flow volume adjustment part 100 which concerns on 1st embodiment is demonstrated. FIG. 5 is a top view of the flow rate adjusting unit 100. As shown in FIG. 5, the turntable 120 of the flow rate adjusting unit 100 is rotated by a predetermined angle from the initial position (the initial position means that the locking position of the turntable 120 covers all the water passage holes 111, However, the initial position described here is limited to the case of this embodiment, and another initial position is set in other embodiments described later.) As a result, a part of the water passage hole 111 provided in the base 110 is exposed, and a water passage having a predetermined area is formed. The water user can rotate the turntable 120 and change the exposed area of the water passage hole 111 according to the application, thereby discharging water at a desired flow rate from the water supply to the outside. The rotating means of the turntable 120 according to this embodiment uses a hexagon wrench, pliers, screwdriver, etc. to release the lock of the turntable 110 of the turntable locking means 130 and rotate the turntable 110. However, it is not limited thereto.

For example, the shapes of the water passage hole 111 and the turntable 120 of the flow rate adjusting unit 100 are as shown in FIGS. The shape of the water passage hole 111 shown in FIG. 5A is a semicircle drawn with the center of the base 110 as the origin. Similarly, the shape of the turntable 120 is also a semicircle drawn with the center of the base 110 as the origin. At the center of the base 110 (the origin of the water passage hole 111 and the turntable 120), the turntable locking means 130 is disposed from above the turntable 120. By making the radius of the turntable 120 slightly longer than the radius of the water passage hole 111, the opening area of the water passage hole 111 can be zero when the turntable 120 is in the initial position.

By making the water passage hole 111 and the turntable 120 of the flow rate adjusting unit 100 into a semicircular shape that is easy to process, the burden on the member processing is reduced as compared with the flow rate adjusting member according to the related art. Further, since the water passage hole 111 has a semicircular shape, the range of the adjustable flow rate is expanded and the adjustment is continuously performed as compared with the conventional technique in which a plurality of small diameter water passage holes are provided. be able to. Thereby, it becomes possible to appropriately meet various usage needs of water users without impairing the water-saving function (the flow rate control range between the present invention and the prior art is shown in FIG. 6).

The shapes of the water passage hole 111 and the rotating disk 120 shown in FIG. 5B are rectangular (rectangular in the drawing). As shown in FIG. 5B, the midpoint of one side of the water passage hole 111 and the turntable 120 is arranged at the center of the base 110. Further, the rotating disk locking means 130 is disposed at the location. Thereby, the turntable 120 is in a state in which it can rotate around the midpoint of one side. The shapes of the water passage hole 111 and the turntable 120 of the flow rate adjusting unit 100 are not limited to this as long as the flow rate of water supplied from the water supply 20 can be adjusted.

As described above, the flow rate control mechanism 10 according to the present invention has a simple configuration in which the flow rate adjustment unit 100 is only accommodated in the discharge port joint portion 200. Therefore, the number of parts can be greatly reduced as compared with the prior art. Therefore, it is possible to reduce the work cost and the manufacturing cost and improve the yield. Further, due to the action of the base support unit 210 and the like, the flow rate adjusting unit 100 is firmly supported and fixed even when receiving the pressure of water passing through the inside of the flow rate control mechanism 10. Thereby, water can be stably discharged | emitted outside, without changing the preset flow volume.

Next, a second embodiment according to the present invention will be described with reference to FIG. The main points different from the first embodiment are a base plate and a turntable related to the flow rate adjusting unit. FIG. 7 is a top view of the base 710 and the turntable 720 according to the second embodiment. As shown in FIG. 7A, the base 710 is provided with a water passage hole 711 having a central angle of 210 °. The water passage hole 711 includes a plurality of projecting portions 712 that project from a predetermined position of the sector-shaped arc that forms the contour thereof toward the center in the radial direction. In the present embodiment, two protrusions 712 are provided. Further, each protrusion 712 has a different radial length. In addition, the dashed-dotted line of Fig.7 (a) shows the periphery (contour) of the hole 711 for water flow in the state without the protrusion part 712. FIG. That is, the region surrounded by the one-dot chain line and the solid lines 712A and 712B is the protruding portion 712.

On the other hand, as shown in FIG. 7B, the turntable 720 of the present embodiment includes a main fan portion 721 that covers a water passage hole 711 provided in the base 710 and an edge of the main fan portion 721 ( And an enlarged diameter portion 722 extending outward from a predetermined position of the arc). Thus, by providing the enlarged diameter portion 722, it is possible to make a state in which there is almost no gap generated between the peripheral edge of the turntable 720 and the base support portion 210 of the discharge port joint portion 200. Thereby, it is possible to prevent problems such as loosening of the locking of the turntable 720 due to an external force applied to the turntable 720 during rotation. However, even if the configuration of the rotating disk 720 does not include the enlarged diameter portion 722, it goes without saying that the covering function of the water passage hole 711 of the base 710 is not impaired.

Next, with reference to FIG. 8, the relationship between the rotation of the turntable 720 in the flow rate adjusting unit and the change in the opening area of the water passage hole 711 provided in the base 710 will be described. FIG. 8A is a diagram illustrating a case where the turntable 720 is rotated in the A direction. FIG. 8B is a diagram illustrating a case where the turntable 720 is rotated in the B direction. A dotted line drawn in FIGS. 8A and 8B shows a portion of the water passage hole 711 that is covered with the rotating disk 720. It should be noted that the position of the rotary disk 720 is the initial position in the present embodiment when it is in FIGS.

By rotating the turntable 720 from the initial position, the opening area of the water passage hole 711 changes, but the length in the radial direction of each protrusion 712 is different (the area of each protrusion 712 is also different). Therefore, even if the rotation angle from the initial position is the same between the case where the turntable 720 is rotated from the A direction and the case where it is rotated from the B direction, the opening area of the water passage hole 711 is different. . Therefore, regarding the opening area of the water passage hole 711, not only variations due to the rotation angle of the rotating disk 720 but also variations due to the rotation direction (A direction or B direction) can be considered.

Specifically, assuming that the rotation per 15 ° interval marked on the periphery of the base 710 is one unit, there are 13 ways in the A direction and 13 ways in the B direction, except for the four ways counted repeatedly. Depending on the rotation angle and rotation direction of the turntable 720, there are 22 variations of the hole area. A list of these opening areas is as shown in FIG. Thus, by providing a large number of variations of the aperture area, the aperture area of the water passage hole 711 can be changed continuously (smoothly) as shown in FIG. The relationship with the open area is shown in FIG.

However, the central angles of the water passage hole 711 and the main fan portion 721 of the present embodiment are not limited to those described above. For example, as shown in FIG. 11, a mode in which the central angle of the water passage hole 711 is 195 ° and the central angle of the main fan portion 721 is 180 ° is conceivable. In this case, there are a total of 24 variations of the opening area of the water passage hole 711, 12 patterns when the rotating disk 720 is rotated in the A direction and 12 patterns when the rotating plate 720 is rotated in the B direction. By appropriately combining the 24 variations in the same manner as described above, the opening area of the water passage hole 711 can be changed continuously (smoothly).

As described above, it is preferable that scales are written on the periphery of the base 710 at intervals of 15 °. This scale is for showing to a water service user etc. how much the turntable 720 has rotated. Thereby, according to rotation of the turntable 720, it becomes possible to provide a measure of the amount of change in the flow rate of water discharged from the water supply to the water supply user and the like, and the work burden in the flow rate adjustment can be reduced.

Further, instead of providing a scale on the periphery of the base 710, a mark line 713 may be provided on the surface of the base 710 as shown in FIG. Furthermore, it is preferable to provide a mark line 723 also on the surface of the rotating disk 720. Thereby, it becomes possible to show more clearly to the water service user how many times the turntable 720 has rotated. Note that a mark 714 may be provided on the surface of the base 710 for distinguishing which is the A direction or the B direction.

FIG. 13 shows the water discharge amount (per minute) when the water pressure (hereinafter referred to as “dynamic water pressure”) flowing through the water supply is changed with respect to the water supply provided with the flow rate control mechanism 10 according to the present embodiment. is there. Specifically, four types with different ratios (hereinafter referred to as “openings”) of the aperture area when the aperture area in a state where the rotating plate 720 does not cover the water passage hole 711 is 100%. Regarding the flow rate control mechanism 10, the result of testing the discharge amount for each dynamic water pressure is shown. In any of the flow rate control mechanisms 10 having different opening degrees, the water discharge amount increases smoothly each time the dynamic water pressure increases.

The table at the bottom of the graph of FIG. 13 shows the actual discharge amount. In most cases, the dynamic water pressure is a value determined for each facility or building such as a hospital. For example, by providing this table to a water user and preparing an environment where the dynamic water pressure of the water supply used can be grasped, the water user can easily determine the opening for obtaining a desired water discharge amount. be able to. Thereby, the further water-saving effect can be aimed at.

DESCRIPTION OF SYMBOLS 10 Flow control mechanism 100 Flow control part 110 Base 111 Water passage hole 120 Turntable 130 Turntable locking means 191 Sealing member 192 Foam fixing member 200 Discharge port joint part 210 Flow control part container 211 Base support part 212 Water discharge Screw groove 220 for attachment to the outlet Foam container 300 Foam 400 Water passage chamber 710 Base 711 Water passage hole 720 Turntable

Claims (8)

A flow rate control mechanism attached to the outlet end of a water supply,
A flow rate adjusting unit for adjusting the flow rate of water supplied from the water supply,
Including a tubular discharge port joint joined to the end of the water discharge port,
The flow rate adjuster is
A base with a water passage hole;
A turntable capable of covering the water passage hole;
Turntable locking means for locking the turntable with respect to the base so as to be rotatable;
With
The discharge port joint portion can accommodate the flow rate adjusting portion,
Provided with a base support part for supporting the base inside,
A flow rate control mechanism characterized in that water discharged from a water discharge port is discharged to the outside through a water passage hole in the base. The flow rate control mechanism according to claim 1, wherein the base support portion has a tapered shape in which an inner diameter becomes narrower from a water inlet side toward a water outlet side. The rotating disk is locked on the base by the rotating disk locking means so that the centers of the rotating disk and the base overlap.
The shape of the rotating disk is a fan shape drawn with its center as the origin,
The flow rate control mechanism according to claim 1 or 2, wherein the shape of the water passage hole of the base is a fan shape drawn with the center of the base as an origin. The said rotary disk is equipped with the main fan part which is latched by the base | substrate by the said rotary disk latching means, and coat | covers the hole for water flow, and the enlarged diameter part extended outside from the edge of the said main fan part. To 4. The flow rate control mechanism according to any one of 3 to 4. The flow control mechanism according to any one of claims 1 to 4, wherein the water passage hole of the base has a semicircular shape drawn with a center of the base as an origin. 6. The water passage hole of the base includes a projecting portion that protrudes toward a radial center side from a fan-shaped arc that forms an outline of the water passage hole. 6. Flow control mechanism. The flow control mechanism according to claim 6, wherein the water passage hole has a plurality of the protrusions, and each of the plurality of protrusions has a different radial length. The rotating disk is locked on the base by the rotating disk locking means so that the centers of the rotating disk and the base overlap.
The shape of the rotating disk is a fan shape drawn with its center as the origin,
The base is formed by a plurality of sector blocks having the same central angle and area,
The fan block has a water passage block provided with water passage holes and a non-water passage block not provided with water passage holes,
The flow rate according to any one of claims 1 and 2, wherein a flow rate of water discharged from the water supply to the outside is changed by a combination of a water passage block and a non-water passage block of the sector block not covered by the rotating disk. Control mechanism.

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