JPS592219Y2 - water pressure adjustment joint - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a water pressure adjustment joint that connects a water faucet to a tap water utilization device such as an oral sanitary device directly connected to the water supply.

A water-directly connected oral hygiene device is one in which the sanitary device is directly connected to a water faucet and tap water is discharged into the oral cavity using water pressure to clean the oral cavity and to massage the gums.

Conventionally, with such oral hygiene devices that are connected directly to the water supply, the pressure may be too high if the water pressure is used as is.
In such cases, a pressure reducer was used.

However, it is not easy to frequently adjust the pressure of the pressure reducer, and handling is inconvenient.

The purpose of this invention is to provide a water pressure adjustment joint that can be attached to a water faucet and further connected to equipment that uses tap water to easily adjust its pressure.

Hereinafter, embodiments of this invention will be further explained based on the drawings.

The water pressure adjustment joint of this invention has a faucet connection part.

In the illustrated embodiment, the faucet connector includes a faucet connector 1, an intermediate connector 4 inserted directly opposite the faucet connector, and a fastener 5 that comes into contact with the intermediate connector and is screwed onto the faucet connector 1. It consists of

First, the faucet connector 1 has a cylindrical base 1b having a connection port 1a in the center into which the faucet 2 is inserted, and a threaded joint that protrudes downward from the lower surface of the base 1b and provides a threaded portion on the cylindrical outer periphery. It consists of part 1C.

A plurality of screw holes 1d are cut into the base portion 1b from the outside at right angles to the axial direction of the connection port 1a, and the screws 3 are screwed into the screw holes 1d.

This screw 3 fixes the faucet connector 1 to the faucet 2 by tightening the tip of the faucet 2 inserted into the connection port 1a.

An intermediate connector 4 is attached to the connection port 1a in the axial direction of the faucet connector 1.
is inserted.

The intermediate connector 4 has a faucet contact part 4a, which the tip of the faucet 2 comes into contact with, located at the back of the connection port 1a, and an outer circumferential step part 4b of the intermediate connector 4 is located at an inward flange part 1e provided at the lower end of the faucet connector 1. Stop hitting and pulling.

Further, the stepped portion 4b is supported by an annular convex portion 5a protruding from the center of the fastener 5 that is screwed into the threaded joint portion 1C, and the intermediate connector 4 is pushed up depending on the degree to which the fastener 5 is tightened. Fix it with the tip of the

The intermediate connector 4 has a through hole 4d formed in the axial direction, and its tip 4C protrudes from the fastener 5 and is inserted into the hanger 6.

The hanging tool 6 has a plurality of outward claw parts 6b on the outer periphery of the insertion opening 6a of the intermediate connector 4, and a locking part 5b provided at the lower end of the fastening tool 5.
The hook portion 6b is engaged with the hook portion 6b to enable the hanging tool 6 to be removed.

At the bottom of the insertion port 6a, a water hole 7, which communicates with the water faucet 2 through a through hole 4d, has an appropriately small diameter, and allows the required amount of water to flow through the water hole 7 is bored at a position slightly off the center. do.

There is a screw 9 in the center of the hanger, which fixes the outflow tool 8.

The outflow tool 8 rotatably supports a pressure adjustment plate 10, which is an external operating member, by a central support shaft 8a.

A gasket 11 is interposed between the pressure adjustment plate 10 and the bottom surface of the hanger 6, and a lever portion 10a of the pressure adjustment plate 10 projects outward from the outflow device 8.

FIG. 2 is a sectional view taken along line A--A in FIG. 1.

The pressure adjustment plate 10 is rotatably supported by the support shaft 8a of the outflow device 8, and is provided with a flow hole 12 communicating with the water flow hole 7.
The communication hole 12 is formed in an arc shape centered on the support shaft 8a.

Furthermore, the pressure regulating plate 10 has the water passage hole 7 and the circulation hole 1.
A safety valve mechanism 14 is provided that releases tap water to a discharge space 16 around the stepped portion 8b, which will be described later, when the tap water pressure between the tap water and the tap water rises above a certain level.

The valve in this safety valve mechanism opens and closes against an internal spring member when the pressure within the hole 15 exceeds a certain level.

The water flowing out from this safety valve mechanism 14 is drained through a plurality of drainage holes 1.
It is discharged outward from 7.

The thick-walled upper part 8b at the center of the outflow tool 8 on which the pressure adjustment plate 10 is placed is formed in a fan-shaped shape, and the connection between the step part 8b and the communication hole 12 is caused by the rotation of the pressure adjustment plate 10. The non-overlapping area, that is, the communication area S between the flow hole 12 and the discharge space 16 is configured to change.

Furthermore, the thick part has a circulation hole 12 and a permanent outflow hole 1.
8.

This outflow hole 18 is connected to a joint 8 that protrudes from the bottom surface of the outflow tool 8.
Penetrate C.

For example, a hose 19 to be connected to an oral hygiene device is fitted into the joint 8C and secured with a stopper 20.

According to this invention having the above-described structure, first, the flow rate of tap water flowing into the outflow device 8 is restricted to an appropriate amount by passing the tap water 7 through the water passage hole 7 of the hanger 6. I'll keep it.

In this invention, as shown in FIG. 3, the pressure adjustment plate 10 is rotated in the direction of the arrow to change the communication area S.

Thereby, the amount of part of the tap water discharged from the discharge space 16 to the outside through the drain hole 17 can be controlled.

Therefore, by rotating the pressure adjustment plate 10, the communication area S between the circulation hole 12 and the discharge space 16 can be changed as appropriate, and the pressure of the tap water flowing out through the outflow hole 18 can be adjusted.

At this time, when the pressure between the hanger 6 and the pressure adjustment plate 10 exceeds a certain level, the safety valve mechanism 14 operates to open the valve and drain the tap water between the hanger 6 and the pressure adjustment plate 10. It is discharged from the hole 15 into the discharge space 16 and discharged from the drainage hole 17 to the outside.

In this way, according to this invention, the flow rate is first restricted by the water passage hole of the hanger, and then the flow rate of the tap water is controlled by the flow hole to be sent to the tap water utilization equipment according to the rotation operation of the pressure adjustment plate. Pressure can be adjusted.

The safety valve mechanism prevents internal pressure from increasing and allows for extremely accurate and easy water pressure adjustment.
It has a simple structure and is easy to handle.

[Brief explanation of the drawing]

Fig. 1 is a longitudinal cross-sectional view of a water pressure regulating joint showing an embodiment of this invention, Fig. 2 is a cross-sectional view taken along line A-A in Fig. 1, and Fig. 3 A-B is a longitudinal cross-sectional view of a water pressure regulating joint shown in Fig. 2. FIG. 4 is a cross-sectional view showing a state when the two are rotated in opposite directions. 1... Faucet connection tool, 1a... Connection port,
2...Water faucet, 7...Water hole, 8a
...Spindle, 12...Flower hole, 10...
...Pressure adjustment plate, which is an external operating member, 14...
...Safety valve mechanism, 16...Discharge space, 18...
...Outflow hole, S...Communication area.

Claims (1)

[Scope of Claim for Utility Model Registration] A faucet connection part that connects to a water faucet, a small-diameter water hole that communicates with the water faucet connected at the faucet connection part and limits the flow rate of tap water from the faucet; a pressure regulating plate rotatable around a support shaft by external operation on the outlet side of the water passage hole; a thick wall portion that contacts the pressure regulating plate on a side opposite to the side where the water passage hole is located; a circulation hole that penetrates the thick wall portion and sends tap water to the tap water utilization equipment; a discharge space outside the thick wall portion that discharges a portion of the tap water to the outside; formed on the pressure adjustment plate; an arc-shaped circulation hole that changes the area of communication with the discharge space when the pressure adjustment plate is rotated, and constantly guides the tap water that has passed through the water passage hole to the outflow hole; A safety valve mechanism that keeps the tap water pressure between the hole and the water passage hole below a certain level, and a Karanaro water pressure adjustment joint.