JP2558217Y2 - Structure of hydrant mounting part - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hydrant mounting structure for mounting a hydrant on a wash basin, a sink, a bathroom wall, or the like.

[0002]

2. Description of the Related Art FIGS. 4 to 6 show a structure in which a water tap a such as a hot and cold water mixing tap is mounted on a mounting surface b. In the figure, c and d denote hot water supply pipes and water supply pipes fixed to a water tap a, respectively.
The water supply pipe d is passed through the mounting holes e and f of the mounting surface b, and the fasteners g and h such as nuts are screwed from the rear side of the mounting surface b to be fixedly mounted. At this time, the water on the mounting surface b
Conventionally, a sheet-like elastic packing i has been sandwiched between the water faucet a and the mounting surface b in order to prevent water from leaking to the rear side of the mounting surface b through f.

[0003] The mounting surface b such as a wash basin, a sink, a bathroom wall, etc. is made of tile, pottery, enamel, artificial marble, stainless steel, F
It is formed of a material such as RP, and the surface is never flat. (Especially, unevenness is large in tiles). For this reason, the elastic packing i is made of a material such as foamed polyethylene resin which has high elasticity and easily conforms to the unevenness of the mounting surface b to prevent water leakage.

[0004]

However, if the elastic packing i is made of a material which is easily elastically deformed as described above, it is deformed by an external force when packaging, transferring or mounting the water tap.
As shown in FIGS. 5 and 6, a part of the elastic packing i is caught in the concave portion j on the opposite surface of the water tap a, or comes off inward when compressed during mounting, and the elastic packing i is removed. In order for the elastic packing i to be clamped over the entire circumference of the water tap a, it is necessary to superimpose the elastic packing i very carefully so as not to be displaced at all and to tighten it. When there is a gap k as shown in FIG.
There is a problem that more intruded water may leak to the back side of the mounting surface b.

It is conceivable to flatten the mounting surface side of the water faucet in order to prevent the packing from escaping as described above. However, if this is done, the entire surface will be processed while avoiding the hot water supply pipe and the water supply pipe. In addition to increasing costs, the elastic packing must be firmly clamped until the entire surface can be sealed facing the highly uneven surface, so a strong tightening force is required and the mounting surface may be destroyed. The front could not be flat.

[0006]

SUMMARY OF THE INVENTION The structure of the hydrant mounting portion of the present invention is to solve the above-mentioned problems, and mounting holes are provided on mounting surfaces such as a wash basin, a sink, and a bathroom wall surface, and the hydrant is mounted. A hydrant mounting portion fixed to the hole, wherein an annular protruding portion is formed on the entire periphery of a surface facing the mounting surface of the hydrant, and a concave portion surrounded by the protruding portion is provided inside. A relief preventing protruding portion is formed on the inner edge of the protruding portion so as to be flush with the protruding portion and extends to the concave portion, and an elastic packing is sandwiched between the mounting surface and the protruding portion. It is assumed that.

[0007]

The escape prevention projection prevents the outer edge of the elastic packing from entering into the concave portion of the faucet facing surface even if the elastic packing is shifted laterally. Since the escape prevention protruding portion requires only a slight increase in the pressure contact surface, there is almost no increase in the required tightening force.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the structure of the hydrant mounting portion of the present invention will be described with reference to FIGS. In FIG. 1, reference numeral 1 denotes a hot-water mixing tap which is a water tap attached to the mounting surface 2, 3 denotes a hot-water supply handle, 4 denotes a water supply handle, and 5 denotes a discharge port.

Reference numeral 6 denotes a hot water supply pipe having one end screwed and fixed to the water tap 1, and 7 denotes a water supply pipe similarly. The hot water supply pipe 6 and the water supply pipe 7 pass through mounting holes 8, 9 provided in the mounting surface 2. Packing 10 is attached to hot water supply pipe 6 and water supply pipe 7 from the rear side of mounting surface 2.
10, the water tap 1 is fixed to the mounting surface 2 by screwing nuts 12, 12 through washers 11, 11.

An annular protruding portion 13 is formed on the entire surface of the surface of the faucet 1 facing the mounting surface 2, and the protruding portion 13 is provided inside the annular protruding portion 13.
A concave portion 14 surrounded by 3 is provided. Further, a plurality of rib-shaped escape prevention projections 15 extending to the recessed portions 14 are formed on the inner edge of the projections 13 so as to be flush with the projections 13. Reference numeral 16 denotes a sheet-like elastic packing which is the same as or slightly smaller than the outer circumference of the facing surface of the water faucet 1 sandwiched between the protruding surface portion 13, the escape preventing protruding surface portion 15 and the mounting surface 2, and the elastic packing material. The nut 16 is crimped onto the mounting surface 2 by tightening the nuts 12, 12 so that it fits well with the uneven surface of the mounting surface 2 to prevent water leakage.

In the structure of the hydrant mounting portion configured as described above, the elastic packing 16 is deformed by being pushed laterally at the time of packaging, transporting, and mounting, as shown by a dashed line in FIGS. Even if the outer edge of the elastic packing 16 is disengaged from the surface 13, the escape preventing projection 15 prevents the packing from entering the concave recess 14 side, so that the pressing force from the water tap 1 is released. The packing 16 is restored to its original shape by its elasticity. For this reason, after the mounting is completed, the packing 16 is securely sandwiched between the mounting surface 2 and the protruding surface portion 13, so that the sealing failure does not occur.

In the above embodiment, the hot water supply pipe 6 of the water tap 1 is used.
Although the example in which the nuts 12 and 12 are fixed to the mounting surface 2 by tightening the nuts 12 and 12 to the water supply pipe 7 has been described, the present invention is not limited to such a fixing method through the hot water supply pipe 6 and the water supply pipe 7.
The present invention is also applicable to a structure in which the water tap 1 is fixed to the mounting surface 2 by fastening means (not shown) such as bolts and nuts.

[0013]

As described above, in the structure of the hydrant mounting portion of the present invention, since the elastic packing is always clamped and mounted at a correct position, a defective seal does not occur. In addition, even if the elastic packing is compressed by the tightening and the force trying to escape to the inside works, it is also pinched by the escape prevention projection on the inside and the inward escape is regulated, so the elastic packing is elastic. The peripheral portion of the packing can be securely sandwiched between the mounting surface and the protruding surface portion. In addition, since the escape preventing protrusion requires only a slight increase in the pressure contact surface, the tightening force is hardly increased, and the purpose is easily achieved without damaging the mounting surface or increasing the cost due to overall processing. Further, since no entry into the concave portion occurs, there is no need to perform mounting work and confirmation after mounting, which simplifies the work and has an advantageous effect such that even a layman can easily mount.

[Brief description of the drawings]

FIG. 1 is a partial cross-sectional front view of a structure of a hydrant mounting portion showing an embodiment of the present invention.

FIG. 2 is a transverse sectional view of a main part of FIG.

FIG. 3 is a sectional view taken along line AA of FIG. 1;

FIG. 4 is a partial cross-sectional front view of the structure of a conventional hydrant mounting portion.

FIG. 5 is a transverse sectional view of a main part of FIG. 4;

FIG. 6 is a sectional view taken along line BB of FIG. 4;

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 water tap 2 mounting surface 6 hot water supply pipe 7 water supply pipe 8, 9 mounting hole 12, 12 nut 13 protruding portion 14 concave recessed portion 15 escape preventing protruding portion 16 elastic packing

Claims (1)

(57) [Scope of request for utility model registration] 1. A water faucet mounting portion for mounting a water faucet in a mounting surface such as a wash basin, a sink, or a bathroom wall surface, the water faucet being fixed to the mounting hole, the surface being opposed to the water faucet mounting surface. An annular protruding surface is formed on the entire periphery of the protruding portion, and a concave portion surrounded by the protruding portion is provided on the inner side, and a relief preventing protruding portion extending to the concave recess on the inner edge of the protruding portion flush with the protruding portion. And a resilient packing sandwiched between the mounting surface and the protruding surface.