JPS607433Y2 - Orifice plate for water supply equipment - Google Patents

Description

[Detailed description of the invention] This invention relates to an orifice plate that is attached to the water inlet of water supply equipment such as ball taps and faucets, and is used to reduce noise caused by water flowing into the equipment by narrowing the flow path. The purpose is to provide an inexpensive orifice plate that can be easily and reliably attached to and removed from the water inlet.

As shown in Fig. 1, the conventional orifice plate A is connected to the water supply device B.
It is used by being in contact with the water inlet end face 1 of the water inlet end 1 and screwed into a screw 6 formed on the outer periphery of the water inlet end 5 with a cap nut 4 via rubber gaskets 3, 3 on both sides of the corresponding contact face 2.

Therefore, clamping the orifice plate A between the rubber seals 3 and 3 is not only troublesome, but also has to be done with fingertips, which often causes parts to fall and get lost. The thickness becomes large, and the length of the internal thread of the cap nut 4 must be made long, resulting in high cost.

The present invention has been devised in view of the above points, and an example of its implementation will be described below with reference to the drawings. FIG. 2 is a half sectional view and a bottom view of orifice plate A'.
′ is made of a resin material such as soft polyethylene, and includes an orifice tube portion 7 with a cylindrical shape and a collar portion 8 that continuously contacts the water inlet end surface 1 of the water supply device B from the base portion 7′ of the tube portion 7.
is formed, and a plurality of leg pieces 10 are formed hanging from the lower surface of the flange 8, and the outer diameter in a continuous state is slightly larger than the inner diameter of the water inlet 9 of the water supply device B.

When in use, insert the leg pieces 10 into the water inlet 9 as shown in Figure 3.
is inserted, press-fitted and locked onto the inner wall of the water inlet 9, and then clamped and fixed with a cap nut 4.

Since the present invention as described above is made of a soft material, the flange also has the effect of a rubber seal, eliminating the need for a rubber seal, and has a sound absorbing effect compared to the conventional orifice plate made of copper, increasing the silencing effect. Not only that, since the member is a single member, it is inexpensive because it is made of a soft resin material.

Furthermore, when installing and removing it, there is no risk of it falling off because the legs are press-fitted into the water inlet, and there is no risk of water leakage due to loss, making it a highly useful idea.

[Brief explanation of the drawing]

FIG. 1 is a partial sectional view showing how a conventional orifice plate is used. 2 and 3 show an embodiment of the present invention, and FIG. 2A is a half-sectional view of the orifice plate from the front direction;
The mouth is a bottom view, and FIG. 3 is a partial sectional view when used in a ball tap. A'... Orifice plate, B... Water supply equipment, 1... Water inlet end surface, 7... Orifice tube, 7'... -Base, 8...Brim part, 9...Water inlet, 10...Leg piece.

Claims (1)

[Scope of utility model registration request] An orifice tube part made of resin such as soft polyethylene and has a cylindrical shape, a collar part that continuously protrudes outward from the base of the cylinder part and comes into contact with the water inlet end surface of the water supply device, and a lower surface of the collar part. The orifice plate for a water supply device is provided with a plurality of leg pieces hanging at circumferential positions and having an outer diameter slightly larger than the inner diameter of the water inlet of the water supply device.