JP3658083B2 - Drain adapter - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention belongs to the technical field of a drain adapter for connecting a connecting pipe to a mixing plug provided in a sink or the like and a discharge port of a water stop cock.
[0002]
[Prior art]
For example, as shown in FIG. 3, the connection pipe to the mixing plug provided in the sink or the like and the discharge port of the stop cock are connected by a drain adapter c in which a cap nut a and a connection fitting b are integrated. It was done. In the figure, symbol d is packing, f is a base, and g is a split ring.
[0003]
[Problems to be solved by the invention]
The above-described conventional water drain adapter c uses two main components, the cap nut a and the connection fitting b, so that there are a relatively large number of connection points causing trouble such as water leakage, and the number of parts There were many and it was expensive.
[0004]
The present invention has been made in view of such circumstances, and an object of the present invention is to provide a water drain adapter that is less likely to cause trouble such as water leakage and has a low number of parts and is inexpensive.
[0005]
[Means for Solving the Problems]
In the present invention, means for solving the above-described problems are configured as follows.
That is, a drain adapter for connecting a discharge port of a water stop cock and a connecting pipe to a mixing plug having an outer diameter smaller than the inner diameter of the discharge port, formed at the discharge port A cap nut having a female screw to be fitted and screwed to a male screw at one end inner surface and an opening through which the connecting pipe is inserted at the other end, the discharge port screwed to the cap nut, and the discharge port An intermediate ring having an interposition portion interposed between the connecting pipe and the end face of the discharge port, and one side surface of the intermediate ring and the end surface of the discharge port A packing that is interposed between the connecting pipe and the cap nut, a seat that has a seating portion that contacts the other side of the packing and is fitted on the connecting pipe, and a cap nut Between the connecting pipe and the tapered surface formed in a tapered shape toward the opening on the inner surface Is HazamaSo is characterized by comprising the said base abutting split ring.
[0006]
The gap between the large-diameter discharge port and the small-diameter connection pipe can be filled with the interstitial ring, and the connection pipe can be firmly connected to the discharge port with the cap nut.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of a drainage adapter of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a cross-sectional view of the main part of a drainage adapter, and FIG. 2 is a perspective view showing the mounting state. In these figures, reference numeral 1 is a drainage adapter, 2 is a water stop cock attached to a wall surface (not shown), etc. Reference numeral 3 denotes the discharge port, 4 denotes hot water connected to the discharge port 3 via the drain adapter 1, and a connection pipe for supplying water, 5 denotes a mixing plug provided on a sink (not shown) or the like. .
[0008]
The configuration of the above-described drainage adapter 1 will be described. 11 is a cap nut, 12 is a female screw to be fitted into a male screw 6 formed in the discharge port 3, 13 is an opening through which the connecting pipe 4 is inserted, 14 This is an interstitial ring for closing the gap between the discharge port 3 and the connection pipe 4, and is applied to the intermediate part 141 interposed between the discharge port 3 and the connection pipe 4 and the end surface of the discharge port 3. It consists of a seating part 142 in contact.
[0009]
15 is a packing, 16 is a pedestal that has a seating portion 161 that abuts against the other side of the packing 15 and is fitted on the connecting pipe 4, 17 is a space between the pedestal 16 and the cap nut 11, and 18 is a split ring. Thus, the inner surface of the cap nut 11 is interposed between the tapered surface 19 formed in a tapered shape toward the opening 13 and the connection pipe 4, and the bottom portion thereof is in contact with the pedestal 16.
[0010]
In the drainage adapter 12 configured in this way, the gap between the inner surface of the discharge port 3 and the connecting pipe 4 is filled by the interposing ring 14, and the split ring 18 is tightened by the taper surface 19 by tightening the cap nut 11. The connecting pipe 4 and the cap nut 11 are tightly integrated through the split ring 18 so that the small diameter connecting pipe 4 can be connected to the discharge port 3 having a large diameter without difficulty.
[0011]
The connection work is very easy to perform by simply tightening the cap nut 11, and the work can be completed easily and reliably. In the assembled state, there is no backlash due to the interstitial ring 14, and the main member is a single item consisting only of the cap nut 11, so there is no connection between the two members as in the conventional drainage adapter. There are few causes of trouble such as water leakage. In addition, the number of parts is small and the cost can be reduced.
[0012]
【The invention's effect】
As described above, according to the drainage adapter of the present invention, the interstitial ring is filled in the gap between the discharge port and the connection pipe, and the connection pipe and the discharge port are connected by the cap nut. Construction can be easily completed only by fastening work, and construction workability is remarkably improved.
[0013]
Further, in the assembled state, the number of parts is reduced and the number of connection points is reduced, so that troubles such as water leakage are reduced, and cost can be reduced.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view showing an embodiment of a drainage adapter of the present invention.
FIG. 2 is a perspective view showing a state in which a mixing stopper is connected to two stop cocks by the water draining adapter.
FIG. 3 is a partial cross-sectional view showing an example of a conventional water drain adapter.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Drain adapter, 2 ... Stop cock, 3 ... Discharge port, 4 ... Connection pipe, 5 ... Mixing stopper, 6 ... Male screw, 11 ... Cap nut, 12 ... Female screw, 13 ... Opening, 14 ... Interposition Rings, 141... Interposing parts, 142... Seating parts, 15... Packing, 16 .. pedestal, 161.

Claims (1)

A drainage adapter for connecting a discharge port of a water stop valve and a connecting pipe to a mixing plug having an outer diameter smaller than the inner diameter of the discharge port, and a male screw formed in the discharge port A cap nut having an internal thread at one end and an opening through which the connecting pipe is inserted at the other end, the discharge port screwed to the cap nut, and the discharge port facing the inside of the discharge port An interposing ring having an interposing portion interposed between the connecting pipe and a seating portion that contacts the end face of the discharge port, and one side face the seating portion of the interposing ring and the end face of the discharge port A packing that is in contact with and is interposed between the connection pipe and the cap nut, a seat that has a seating portion that contacts the other side of the packing, and is fitted on the connection pipe; and an inner surface of the cap nut It is interposed between the tapered surface formed in a tapered shape toward the opening and the connecting pipe. Drain adapter, characterized by comprising the said base abutting split ring.

Images