JP6010738B2 - Flow control valve - Google Patents

Description

  The present invention relates to a flow rate adjusting valve that is attached between a front end of a faucet fitting and a discharge fitting that discharges water, and enables water saving by adjusting the flow rate.

  Conventionally, a plate member that is sandwiched and held at the joint of the water supply channel to partition the water supply channel back and forth, and a main body block that is fixed by a screw so as to be relatively rotatable on one surface side of the plate member and located in the water supply channel In addition, there is known a water-saving device having a plurality of water-saving holes arranged in the circumferential direction so that the plate member and the main body block change in the number of holes communicating with each other by relative rotation around the pivotal support ( Patent Document 1).

  In addition, a water flow chamber formed between a joint fitting joined to the mouth end of the faucet and a discharge fitting that discharges water adjusts the flow rate by including a water control piece, and the lower end of the water flow chamber. In the flow rate control valve comprising a net-like flow rate relaxation body, the water control piece includes a water control board in which butterfly wings are provided symmetrically on a diameter passing through the center thereof, and the butterfly wing superimposed on the water control board. A water passage board having a required shape and a required number of water passage holes in the center of the board surface exposed between them, and the water control piece is interposed through a bush fitted inside the joint fitting. A flow control valve is known which is installed in the water flow chamber (Patent Document 2).

  Furthermore, the water flow adjustment part provided with the 1 or several water flow hole, and the flow volume adjustment part which can displace relatively with respect to a cylindrical part, This flow rate adjustment part accompanying the relative displacement of a flow rate adjustment part, One water-saving device in which the size of the flow path formed between the flow rate adjusting unit and the water flow adjustment unit is changed based on the change in the relative positional relationship between the water flow adjustment unit and the water flow adjustment unit. Therefore, a water-saving device and a water-saving device that are compatible with a plurality of water discharge flow rates and can be easily adjusted by anyone (Patent Document 3) are known.

Japanese Patent No. 3673563 Japanese Patent No. 4100653 Japanese Patent No. 4237025

Various water-saving metal fittings that can be attached to the tip of a water faucet fitting to adjust the flow rate are known and used in a wide variety of forms, but the structure is complicated and the manufacturing cost is high. As a water-saving metal fitting, there is a demand for a water-saving function that is excellent in water-saving function and low in manufacturing cost.
An object of the present invention is to provide a flow rate adjusting valve that is inexpensive to manufacture and excellent in flow rate adjustment.

  The present invention is a flow rate adjustment valve that is joined between a front end of a faucet fitting and a discharge fitting that discharges water, and is attached with securing water tightness, and the flow rate adjustment valve is located at the center of the inner bottom surface. A plurality of water holes of different sizes are formed on the same circumference as a reference, and water holes of the same size are formed at symmetrical positions with respect to the center, and one of the water holes of the same size is formed. Consists of a flow rate adjusting valve main body with a positioning recess formed upward on the outer circumference and an adjusting plate that is superimposed on the upper surface of the inner bottom surface, and the adjusting plate is the same circle as the circumference where the water passage hole is located An adjustment hole is formed symmetrically with respect to the center on the circumference, and a downward positioning convex portion that fits into a positioning concave portion of the water passage hole is formed outside one circumference of the adjustment hole, and the adjustment plate Only the water passages that are aligned with the adjustment holes are passed through by rotating the Holes relates to a flow control valve and having a structure that enables positioning at the same time are water stop a flow rate thereof is adjusted by the adjusting plate.

  In addition, the present invention is provided with a protrusion that also serves as a handle at the time of turning operation so that water from the faucet fitting can easily flow into the adjustment hole on the upper surface of the adjustment hole of the adjustment plate. The present invention relates to the above-described flow rate adjustment valve in which a conical portion is formed on the upper surface of the hole with the same diameter as that of the adjustment hole.

  ADVANTAGE OF THE INVENTION According to this invention, the manufacturing cost is cheap and the flow volume adjustment valve which can adjust a flow volume effectively is provided.

Exploded view and AA sectional view of the components of the flow regulating valve according to the present invention Plan view of adjustment plate Plan view of the flow control valve body Assembly sectional view and running water path diagram showing the usage state of the flow regulating valve according to the present invention Exploded view and cross-sectional view of components of connection fitting Cross-sectional view of assembly of connecting fitting and flow control valve according to the present invention

The present invention will be described with reference to FIGS.
As shown in FIG. 1, the flow rate adjusting valve 6 according to the present invention has a structure in which an adjusting plate 2 is superimposed on the upper surface (water passage upper surface 3 b) of the inner bottom surface of the flow rate adjusting valve body 3. Are joined together with packings 5 and 5a between the tip 1a of the faucet fitting 1 and the discharge fitting 4 for discharging water to secure watertightness. A male screw is externally provided at the tip 1a of the faucet fitting 1, and a female screw 3a is provided inside the upper end of the flow rate adjusting valve main body 3, and both are screwed together. A plurality of water holes 3c, 3d, 3e, 3f of different sizes are formed on the same circumference with respect to the center of the inner bottom surface of the flow regulating valve main body 3, and the same size at symmetrical positions with respect to the center. A plurality of water passage holes 3c, 3d, 3e, and 3f are formed, and a positioning recess 3h is formed on the outer circumference of one of the water passage holes of the same size. A pivotable adjustment plate 2 having an adjustment hole 2a aligned with the water passage hole is superimposed on the water passage upper surface 3b as shown in FIG. 4, for example, a pair of adjustment holes 2a as shown in FIG. It is formed symmetrically with respect to the center on the same circumference as the circumference where the water passage hole is located. A male screw 3g is externally provided at the lower end of the flow rate adjusting valve main body 3, and a female screw 4a is provided inside the upper end of the discharge fitting 4 so as to be screwed together.

  As shown in FIG. 1 and FIG. 4, the adjustment plate 2 passes between the faucet bracket tip 1 a and the flow rate regulation valve body 3 through the packing 5 by screwing the flow rate regulation valve body 3 to the faucet bracket tip 1 a. It is pressure-bonded to the water hole upper surface 3b to ensure water tightness.

  As shown in FIG. 2, the adjusting plate 2 existing in the flow rate adjusting valve 6 is in a symmetrical position with respect to the center on the same circumference as the circumference where the water passage hole is located so as to be aligned with the water passage hole. A pair of adjustment holes 2a having the same diameter as the largest diameter of the water passage holes are formed. As shown in FIG. 1, one of the adjustment holes 2 a is at the center of the downward and cylindrical protrusion 2 b and is aligned with the water flow hole of the flow rate adjustment valve body. As shown in FIGS. 1 and 2, it is preferable that a weight portion 2c is formed on the upper surface of the adjustment hole 2a so as to allow water from the faucet fitting to easily flow in as shown in FIGS. Only the water passage hole that is aligned with the adjustment hole is passed by the rotation operation of the adjustment plate 2, and the other plurality of water passage holes are stopped by the adjustment plate 2 and the flow rate is adjusted and positioning is possible. Further, it is preferable that a conical projection 2d that also serves as a handle at the time of a rotation operation is formed on the upper surface of the adjustment plate in order to obtain smooth water flow to the adjustment hole 2a.

  The water flow holes of different sizes formed on the inner bottom surface of the flow regulating valve main body 3 are positioned on the symmetric circumference with respect to the center of the inner bottom surface, for example, 3c, 3d, 3e, and 3f. There is a positioning recess 3h that receives the protrusion 2b of the adjusting plate 2 at one of the symmetrical water holes, and water holes of different sizes are formed at the center of the recess 3h, for example, 3c, 3d, 3e, and 3f. Yes. On the upper surface of the water passage hole, there is a weight portion 3i with the same diameter as that of the adjustment hole on the upper side in order to eliminate a water passage impact caused by a different diameter step when aligned with the water passage hole having a smaller diameter than the adjustment hole. Preferably it is formed.

  FIG. 4 is a cross-sectional view of the assembly and a flow path diagram showing the state of use. The flow rate adjustment valve 6 is joined between the tip of the faucet fitting 1 and the discharge fitting 4, and the flow path from the incoming water 1b to the discharged water 4b. Represents. Water enters from the tip of the faucet fitting 1, is guided to the adjustment hole by the conical projection of the adjustment plate 2, passes through the water flow hole whose flow rate is adjusted, flows to the center of the discharge fitting 4, and is discharged from the discharge fitting. 4b is discharged.

  1 and 4 show a joined state of the flow rate adjusting valve 6 according to the present invention and a faucet fitting 1 having a male screw externally provided at the tip thereof. There is no external screw at the tip. 5 and 6 show a state in which the flow rate adjusting valve 6 according to the present invention and a tip round water faucet metal 7 having no external screw provided at the tip thereof are joined via a connection metal fitting 11.

  FIG. 5 is an exploded view and a cross-sectional view of the components of the connection fitting 11. As shown in FIG. 6, the connection fitting 11 is inserted into the tip of the round tip faucet 7 through the packing 8, and tightened with a plurality of set screws 10 to join the round tip faucet 7 and the connection fitting 11. Watertightness is ensured. A male screw 11 a is externally provided at the lower end of the connection fitting 11, and a female screw 3 a is provided inside the upper end of the flow rate adjusting valve main body 3. And the flow rate adjusting valve 6 are joined in a state where water tightness is ensured. In addition, when the pointed round faucet fitting 7 and the connection fitting 11 are joined, a gap with the tip round faucet fitting 7 is formed in the inner end portion of the connection fitting 11, so that, for example, the spacer rubber 9 is filled in the gap. Is preferable.

1 Faucet fitting 1a Tip of faucet fitting 1b Water entry 2 Adjustment plate 2a Adjustment hole 2b Protrusion (positioning)
2c Weight portion 2d Protrusion 3 Flow rate adjusting valve body 3a Female screw 3b Water passage upper surface 3c Water passage hole (minimum diameter)
3d Water hole 3e Water hole 3f Water hole (Maximum diameter)
3g male screw 3h recess (positioning)
3i Weight part 4 Discharge fitting 4a Female screw 4b Discharge water 5 Packing 5a Packing 6 Flow control valve 7 Tip round faucet fitting <No screw>
8 Packing 9 Spacer rubber
10 Set screw
11 Connection bracket
11a Male screw

Claims (2)

  It is a flow rate adjusting valve that is joined between the tip of the faucet bracket and a discharge fitting that discharges water and is attached with a water tightness secured. A plurality of water holes of different sizes are formed on the circumference, and water holes of the same size are formed at symmetrical positions with respect to the center, and one of the water holes of the same size is outside the circumference of the circumference. It consists of a flow adjustment valve body with a positioning recess formed upward and an adjustment plate that is superimposed on the upper surface of the inner bottom surface, and the adjustment plate is centered on the same circumference as the circumference where the water passage hole is located. The adjustment hole is formed symmetrically with respect to the reference hole, and a downward positioning convex portion that fits into the positioning concave portion of the water passage hole is formed outside one circumference of the adjustment hole. Therefore, only the water flow holes that match the adjustment holes are passed through, and the other water flow holes are adjusted. Flow control valve, characterized by having a structure that enables positioning at the same time are water stop and a flow rate thereof is adjusted by the plate.   A protrusion that also serves as a handle for turning operation is formed on the adjustment hole on the adjustment plate so that water from the faucet fitting can easily flow into the adjustment hole. The flow regulating valve according to claim 1, wherein a conical portion is formed on the upper side of the same diameter as the hole.

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