JP2729147B2 - Drain trap - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drain trap disposed under a floor of a bathroom or the like, and more specifically, to a drain trap having a structure in which a drain outer tube surrounds a drain tube and the drain tube is inserted into the drain tube. It relates to a drain trap.

[0002]

2. Description of the Related Art A conventional example of a drain trap having a structure in which a drainage envelope is surrounded by a drainage envelope and the drainage envelope is inserted into the watertight envelope will be described with reference to FIGS. A water discharge outer cylinder 102 surrounding a water seal 101 having an open upper end and a closed lower end.
Are arranged. The upper end of the side wall of the drainage outer tube 102 is located above the upper end of the side wall of the watertight tube 101, and a bottom wall 102 a extending radially inward from the lower end of the side wall of the drainage outer tube 102 reaches the side wall of the watertight tube 101. The inner space of the water seal tube 101 forms a water seal chamber 200, and the water seal case 101 and the drain outer case 102
An annular space formed by the above forms a drainage chamber 300. A drainage discharge tube 103 whose one end is open to the side wall of the drainage outer tube 102 radially extends outward in the radial direction. A drainage tube 104 having a flange 104a extending radially outward at the upper end is inserted into the watertight tube 101. Drain cylinder 104
The upper end of the side wall of the drainage tube 101 is higher than the upper end of the side wall of the watertight tube 101, and the lower end of the side wall of the drainage tube 104 is separated upward from the bottom wall of the watertight tube 101. Water sealed bottle 101 and drainage outer tube 102
And the drainage pipe 104 are arranged concentrically.

[0003] An annular spacer 105 is attached to the drainage outer cylinder 102 in a state where an annular groove 105 a formed in the outer edge is fitted to the upper end of the side wall of the drainage outer cylinder 102. A cylindrical fastening flange 106 having an upper flange 106a extending radially outward at an upper end and a lower flange 106b extending radially inward at a lower end is disposed radially inward of the spacer 105. I have. The inner end of the spacer 105 is screwed to the outer surface of the fastening flange 106, and the outer end of the drain tube flange 104 a is screwed to the inner surface of the fastening flange 106. Drain plate 107,
Fastening flange 1 immediately above flange 104a of drainage cylinder
06 is screwed into the inner surface. The spacer 105, the fastening flange 106, and the flange 104a of the drainage cylinder cooperate to form a lid member that closes an annular gap formed between the upper side wall of the drainage cylinder 104 and the upper side wall of the drainage outer cylinder 102. doing. The drain trap having the above-described configuration is configured such that the annular step portion F1 of the floor F surrounding the drain opening O formed in the floor F of a bathroom or the like is fastened to the upper flange 106a of the fastening flange.
It is attached to the floor F of a bathroom or the like in a state of being sandwiched by the and the spacer 105. The drainage discharge tube 103 is connected to the drainage pipe D.

In the drain trap having the above-described structure, the drain water flowing through the floor F of the bathroom or the like is discharged to the drain pipe 104.
Flows into the water-sealing bottle 101 through the
00 is stored. The drainage overflowing from the upper end of the side wall of the water sealing tube 101 flows into the drainage chamber 300, and is discharged from the bathroom or the like through the drainage discharging tube 103 and the drainage pipe D. Drain cylinder 104
A lid member for closing an annular gap formed between the upper side wall of the drainage cylinder and the upper side wall of the drain outer cylinder 102, and the presence of the sealing water W prevent the inflow of offensive odor from the drain pipe D into the bathroom or the like. You.

[0005]

The diameter of the drainage pipe of the drainage trap is limited by the installation space, the beauty of the drainage pipe, the restriction on the opening size of the trap plate mounting part of the floorboard in accordance with the JIS standard, and the like.
I can't make it big. For this reason, in the conventional drain trap having a structure in which the drainage outer tube surrounds the watertight tube and the drainage tube is inserted into the watertight tube, sufficient drainage performance cannot be obtained,
There is also a problem that it is difficult to insert tools and cleaning tools during cleaning. The present invention has been made in view of the above problems, a drain trap having a structure in which a drain outer tube surrounds a water seal, and the drain is inserted into the water seal, wherein the diameter of the drain is conventional. It is an object of the present invention to provide a drain trap that is equivalent to a drain trap, has improved drainage performance as compared with a conventional drain trap, and has improved cleanability of a drain trap and a drain pipe as compared with a conventional drain trap.

[0006]

In order to solve the above problems, in the present invention, a water bottle having an open upper end and a closed lower end, a water bottle surrounding the water bottle, and the upper end being located above the upper end of the water bottle. There is a drain outer cylinder whose bottom wall extending inward in the radial direction from the lower end reaches the side wall of the water seal cylinder, a drain discharge cylinder having one end opened to the side wall of the drain outer cylinder and extending radially outward, and inserted into the water seal cylinder. An annular gap formed between an upper end of the drainage tube and an upper end of the drainage tube, the upper end of which is located above the upper end of the watertight envelope, and the lower end of which is spaced upward from the bottom wall of the watertight envelope. A drain member provided with a lid member for closing the drain pipe, wherein a connection portion of the drain discharge cylinder with the drain outer cylinder side wall has a funnel shape expanding toward the drain outer cylinder. . In a preferred embodiment of the present invention,
The water sealing tube is disposed eccentrically with respect to the drain outer tube in a direction away from the drain discharge tube, and the drain tube is eccentrically disposed with respect to the water sealing tube in a direction approaching the drain discharge tube.

[0007]

In the drain trap according to the present invention, since the connecting portion of the drain discharge tube with the drain outer tube side wall is formed in a funnel shape expanding toward the drain outer tube, the drainage chamber is connected to the drain discharge tube. The flow of drainage becomes smooth and the flow rate of drainage increases. In addition, the drainage discharge tube is hardly clogged with dust, and the drainage discharge tube and the drainage pipe are easily cleaned. By arranging the water sealing cylinder eccentrically in the direction away from the drain discharge cylinder with respect to the drain outer cylinder, the width of the drain chamber near the drain discharge cylinder increases, and the flow of drain water from the drain chamber to the drain discharge cylinder increases. It becomes smoother and the drainage flow increases. In addition, since the gap between the water sealing tube and the drain outer tube in the vicinity of the drain discharging tube becomes wider, the drain tube is removed, and a cleaning tool is inserted through the gap between the water sealing tube and the drain outer tube, and the drain discharging tube is inserted. When cleaning drain pipes,
It becomes easy to insert the cleaning tool into the gap between the water sealing tube and the drainage outer tube. This facilitates cleaning of the drainage discharge tube and the drainage pipe. By disposing the drainage tube eccentrically in the direction approaching the drainage discharge tube with respect to the watertight tube, the drainage opening formed in the bathroom floor or the like approaches the drainage discharge tube. As a result, when cleaning the drainage discharge tube and the drainage pipe, the cleaning tool can easily reach the drainage discharge tube and the drainage pipe.
This facilitates cleaning of the drainage discharge tube and the drainage pipe. In addition, the gap between the drainage tube and the water sealing tube widens, the resistance of the flow path of the water sealing chamber decreases, and the drainage flow rate increases.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described with reference to FIG. As shown in FIG. 1, in the drain trap according to the present example, the connection portion 13 a of the drain discharge tube 13 with the side wall of the drain outer tube 12 is formed in a vertically flat funnel shape expanding toward the drain outer tube 12. Have been. Water seal tube 11 and drainage outer tube 1
2 and the drainage cylinder 14 are arranged concentrically. Except for the above, the structure of the present drain trap is the same as the structure of the conventional drain trap shown in FIGS. In the present drain trap, since the connecting portion 13 a of the drainage discharge tube 13 with the side wall of the drainage outer tube 12 is formed in a funnel shape expanding toward the drainage outer tube 12, the drainage chamber 300 moves to the drainage discharge tube 13. The drainage flow becomes smoother and the drainage flow increases.
Accordingly, in the present drain trap, the drainage performance is improved without increasing the diameter of the drainage tube as compared with the conventional drainage trap in which the drainage outer tube surrounds the watertight tube and the drainage tube is inserted into the watertight tube. be able to. In addition, by forming the connection part of the drainage discharge cylinder with the drainage outer cylinder side wall in a funnel shape that expands toward the drainage outer cylinder, it is difficult for the wastewater discharge cylinder to be clogged with dust, and the drainage discharge cylinder and the drainage pipe can be cleaned. It will be easier.

A second embodiment of the present invention will be described with reference to FIG. As shown in FIG. 2, in the drain trap according to the present example, the connection portion 23 a of the drain discharge tube 23 with the side wall of the drain outer tube 22 is formed in a vertically flat funnel shape expanding toward the drain outer tube 22. Have been. The water sealing tube 21 is eccentric to the drain outer tube 22 in a direction away from the drain discharge tube 23, and more specifically, is disposed eccentric in the direction opposite to the drain discharge tube 23. The drainage tube 24 is disposed eccentrically in the direction approaching the drainage discharge tube 23 with respect to the water seal tube 21, more specifically, in the direction of the drainage discharge tube 23. Except for the above, the structure of the present drain trap is the same as the structure of the conventional drain trap of FIGS.

In the present drain trap, the drain discharge tube 2
Since the connecting portion 23a with the side wall of the drainage outer tube 22 of No. 3 is formed in a funnel shape expanding toward the drainage outer tube 22,
The flow of drainage from the drainage chamber 300 to the drainage discharge tube 23 becomes smooth, and the drainage flow rate increases. In addition, drainage discharge cylinder 2
3 is hardly clogged with dust, and the drainage discharge tube 23 and the drainage pipe D can be easily cleaned. Since the water sealing tube 21 is disposed eccentrically in the opposite direction to the drainage discharge tube 23 with respect to the drainage outer tube 22, the width of the drainage chamber 300 near the drainage discharge tube 23 increases, and the drainage discharge from the drainage chamber 300 occurs. The flow of drainage to the cylinder 23 becomes smooth, and the drainage flow increases. In addition, since the gap between the water sealing tube 21 and the drain outer tube 22 near the drain discharge tube 23 becomes wider, the drain tube 24 is removed, and the water sealing tube 2 is removed.
When a cleaning tool is inserted through the gap between the drainage pipe 1 and the drain pipe 22 to clean the drain discharge pipe 23 and the drain pipe D, the cleaning tool is inserted into the gap between the water sealing pipe 21 and the drain pipe 22. This facilitates cleaning of the drainage discharge tube 23 and the drainage pipe D.

A drainage tube 24 is disposed eccentrically with respect to the watertight tube 21 in a direction approaching the drainage discharge tube 23, and a drainage opening formed in a bathroom floor or the like approaches the drainage discharge tube 23. . As a result, when cleaning the drainage discharge tube 23 and the drainage pipe D, it becomes easy for the cleaning tool to reach the drainage discharge tube 23 and the drainage tube D, and thus the drainage discharge tube 23 and the drainage tube D are cleaned. Becomes easier. Further, since the drainage tube 24 is disposed eccentrically with respect to the water sealing tube 21, a gap between the drainage tube 24 and the water sealing tube 21 is widened, and the water sealing chamber 20 is closed.
The resistance of the zero flow path decreases, and the drain flow rate increases. Although the embodiments of the present invention have been described above, the present invention is not limited to the above embodiments. For example, the connecting portions 13a and 23a of the drainage discharge cylinder with the drainage outer cylinder side wall may have a normal funnel shape.

[0012]

As can be understood from the above description, according to the present invention,
Compared with the conventional drain trap, in which the drain outer tube surrounds the water seal and the drain is inserted into the water seal, the drainage performance is improved without increasing the diameter of the drain, and the drain trap and the inside of the drain pipe are improved. Cleanability can be improved.

[Brief description of the drawings]

FIG. 1 is a plan sectional view of a drain trap according to a first embodiment of the present invention.

FIG. 2 is a plan sectional view of a drain trap according to a second embodiment of the present invention.

FIG. 3 is a side sectional view of a drain trap having a conventional structure in which a drainage envelope surrounds a watertight envelope and the drainage envelope is inserted into the watertight envelope;

FIG. 4 is a plan sectional view taken along line IV-IV in FIG. 1;

[Explanation of symbols]

 Reference numerals 11, 21 Water seal tube 12, 22 Drain outer tube 13, 23 Drain discharge tube 14, 24 Drain tube 13a, 23a Connection between drain discharge tube and drain outer tube side wall 101 Water seal tube 102 Drain outer tube 102a Bottom of drain outer tube Wall 103 Drainage discharge tube 104 Drainage tube 104a Flange 105 Spacer 105a Annular groove 106 Tightening flange 106a Upper flange 106b Lower flange 107 Drain plate 200 Sealing room 300 Drainage room D Drainage pipe F Floor of bathroom, etc. F1 Annular step O drainage Opening W Sealing

 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Kenji Tanaka 3-12-10 Hakata-ekimae, Hakata-ku, Fukuoka-shi, Fukuoka Kashima Construction Co., Ltd. Kyushu Branch (72) Inventor Yasuo Tanabe Hakata-ekimae, Hakata-ku, Fukuoka-shi, Fukuoka 3-12-10 Kashima Corporation Kyushu Branch (72) Inventor Toshihisa Matsushima 1-2-7 Moto-Akasaka, Minato-ku, Tokyo Kashima Corporation (72) Inventor Takashi Takahashi Moto-Akasaka, Minato-ku, Tokyo 1-2-7 Kashima Construction Co., Ltd. (72) Inventor Hiroki Yamaguchi 1-2-7 Motokasaka, Minato-ku, Tokyo Kashima Construction Co., Ltd. (72) Inventor Norimichi Inada 4 Hakata-ekimae, Hakata-ku, Fukuoka-shi Chome 13-11 Toyo Thermal Industry Co., Ltd. Kyushu Branch

Claims (2)

(57) [Claims] 1. A water bottle having an upper end opened and a lower end closed, and a water bottle surrounding the water bottle, an upper end being above the upper end of the water bottle, and a bottom wall extending radially inward from the lower end being a side wall of the water bottle. A drainage outer cylinder reaching one end, a drainage discharge cylinder having one end opened to the side wall of the drainage outer cylinder and extending radially outward,
A drain cylinder whose upper end is above the upper end of the water bottle and whose lower end is separated upward from the bottom wall of the water bottle, and an annular gap formed between the upper part of the water bottle and the upper part of the drain outer cylinder In the drain trap having a lid member that closes, a connection portion of the drain discharge cylinder with the drain outer cylinder side wall is formed into a truncated cone toward the drain outer cylinder.
Drain trap, characterized in that it forms a funnel-shaped spreading Jo. 2. The water sealing cylinder is disposed eccentrically with respect to the drain outer cylinder in a direction away from the drain discharge cylinder, and the drain cylinder is eccentrically disposed with respect to the water sealing cylinder in a direction approaching the drain discharge cylinder. The drain trap according to claim 1, wherein: