JPH0315657Y2 - - Google Patents

Description

[Detailed Description of the Invention] Technical Field The present invention relates to an improvement of a drainage trap.

PRIOR ART The main body has a container-shaped water sealing tank, and discharges wastewater overflowing from the upper end of the water sealing tank to the outside from a drain opening opened on the side, and a main body that has a tubular shape, is received in the water sealing tank, and has an upper end. a deodorizing cylinder whose opening is covered by a perforated plate having a large number of water holes and a drain pipe connection port;
A drainage trap is known which is provided on the inner peripheral side of the deodorizing cylinder and includes a guide pipe that directly guides the waste water introduced from the drain pipe connection port to the outer periphery of the lower end of the deodorizing cylinder. For example, Utsukai Showa 60−64785
This is what is described in the publication. The guide pipe of this drainage trap is configured in an inverted T shape.
A first tube provided approximately concentrically on the inner circumferential side of the deodorizing tube.
A second guide part is provided at the lower end of the guide part to protrude to the lower end of the deodorizing cylinder peripheral wall in both directions perpendicular to the axis.
The drainage introduced into the guide part is guided to the outer periphery of the lower end of the deodorizing tube. As a result, when a large amount of wastewater containing a large amount of foaming components, such as wastewater from a washing machine, flows in through the drain pipe connection port, even if foam is initially contained or bubbles are generated, the outside of the deodorizing tube will be removed. Since it occurs exclusively in
This prevents bubbles from overflowing from the inside of the deodorizing cylinder through the perforated plate.

Problems to be Solved by the Invention However, in such drainage traps, the flow area of the lower end of the deodorizing cylinder is usually greatly reduced by the presence of the second guide part.
There was a problem in that sufficient drainage capacity was not obtained for the waste water introduced into the deodorizing cylinder from the floor through the water passage hole in the perforated plate.

Means for Solving the Problems The present invention was made against the background of the above-mentioned circumstances, and its gist is that in the drainage trap as described above, the guide pipe is arranged so that its outer peripheral surface is The deodorizing tube is fixed in a state in which it is substantially in contact with the inner circumferential surface of the tube, and at the lower end of the guide tube, a protruding portion is provided that protrudes from the lower end of the deodorizing tube toward the bottom of the water sealing tank. The reason is that an opening is provided in a portion facing the inner wall surface of the water sealing tank.

Function and Effect of the Invention By doing this, the outer circumferential surface of the guide tube is fixed in a state in which it is substantially in contact with the inner circumferential surface of the deodorizing tube, while
The lower end of the guide tube is provided with a protrusion that protrudes from the lower end of the deodorizing cylinder toward the bottom of the water sealing tank, and an opening is provided in the portion of the protrusion that faces the inner wall surface of the water sealing tank. , the drainage introduced from the drainage pipe connection port of the perforated plate to the guide pipe can be directly guided to the outer circumference of the lower end of the deodorizing cylinder, and it is possible to effectively prevent bubbles caused by drainage from overflowing from inside the deodorizing cylinder onto the perforated plate. .

In addition, since it is not necessary to provide the second guide part, the flow area of the lower end of the deodorizing tube can be secured larger than in the past, and the drainage introduced from the floor into the deodorizing tube through the water passage hole in the perforated plate can be secured. Drainage capacity can be significantly increased.

Embodiment Hereinafter, an embodiment of the present invention will be described in detail based on the drawings.

In FIG. 1, reference numeral 10 is a drainage trap made of resin, which is placed on the floor of a bathroom or the like. This drain trap 10 has a main body 14 which is open at the top and has a drain port 12 at the side.
and a water-sealing tank 16 which is shaped like a container and is integrally provided on the inner peripheral side of the main body 14; The deodorizing cylinder 18 is disposed so as to close the upper end opening of the deodorizing cylinder 18, has a large number of water passage ports 20 on the outer circumferential side, and has a drain pipe connection port 2.
2 at an eccentric position, and a deodorizing cylinder 1.
8 and a guide tube 26 integrally provided in a manner eccentric to each other and inscribed in a small diameter portion 46 to be described later.

An annular member 28 having a female thread formed on the inner circumferential side is integrally fixed to the opening-side inner peripheral surface of the main body 14 with an adhesive or the like, and the deodorizing tube 18 and the like are supported on the annular member 28. An annular support member 30 is screwed together. The support member 30 has a male thread formed on its outer circumferential surface, and a plurality of engagement grooves (not shown) extending in the circumferential direction on its inner circumferential surface, which extend a predetermined distance in the axial direction from the upper end, and extend a predetermined distance in the circumferential direction from the tip thereof, etc. It consists of a individually formed cylindrical portion 32, an outer periphery side flange 34 protruding from the upper end of the cylindrical portion 32 toward the outer circumferential direction, and an inner periphery side flange 36 protruding from the lower end of the cylindrical portion 32 toward the inner circumferential direction. A rubber packing 40 having a U-shaped cross section and having an annular groove 38 that opens in the outer circumferential direction is inserted between the outer peripheral flange 34 and the upper surface of the annular member 28 via a seal packing 42 . A floor member 44 is sandwiched within the annular groove 38 of the rubber packing 40, and by tightening the support member 30 to the annular member 28 in this state, the drain trap 10 is attached to the floor member 44 in a liquid-tight manner. It's summery.

The deodorizing tube 18 includes a small diameter portion 46, a large diameter portion 48,
and a stepped portion 50 formed between the small diameter portion 46 and the large diameter portion 48. And the small diameter part 4
6 is received in the water-sealing tank 16, and the O-ring 52 placed on the inner flange 36 of the support member 30 is pressed by the stepped portion 50, and the O-ring 52 is protruded from the outer circumference of the large diameter portion 48. By engaging the projection 54 with the engagement groove formed in the support member 30, positioning around the axis is achieved and relative movement in the axial direction is prevented.

The perforated plate 24 is in a state in which the plurality of protrusions 56 protruding from its outer circumferential side are engaged with the engagement grooves, so that it is prevented from coming off and the drain pipe connection port 22 is concentric with the guide pipe 26. It is arranged so as to cover the upper opening of the deodorizing cylinder 18 in a state where it is located at . A lid member 58 is always fitted to the drain pipe connection port 22, and a portion of the drainage from the floor flows into the drain trap 10 through the plurality of water passage holes 60 formed in the lid member 58. It is beginning to be introduced into
The water passage holes 20 formed in the perforated plate 24 extend radially from the vicinity of the outer peripheral edge of the drain pipe connection port 22 toward the outer peripheral side, and are formed so that the opening area becomes larger toward the outer peripheral side. .

In this embodiment, the guide tube 26 is eccentrically located at a position closest to the drain port 12, and the upper end of the guide tube 26 has a circular cross section and the lower end has a circular cross section. As shown in FIG. 3, the deodorizing tube 18 is formed into a U-shape with an arcuate portion on the inner circumferential side. And the guide tube 26
The upper end is close to the lower end of the drain pipe connection port 22, and the lower end of the guide pipe 26 has a
A substantially cylindrical protrusion 62 is provided that protrudes from the lower end of the deodorizing cylinder 18 to a position close to the bottom of the water sealing tank 16. An opening 64 is formed in the protrusion 62 by cutting out a predetermined length in the circumferential direction at a portion facing the inner wall surface of the water sealing tank 16 and close to the drain port 12 .

In the drain trap 10 configured as described above, the waste water flowing into the drain trap 10 along the floor is introduced into the deodorizing tube 18 exclusively through the water passage hole 20 of the perforated plate 24, and The waste water overflowing from the upper end is discharged to the outside through the drain port 12. On the other hand, after removing the lid member 58, for example, the tip of an elbow 66 connected to a washing machine drain pipe (not shown) is inserted into the upper part of the guide pipe 26 through the drain pipe connection port 22 and attached. As a result, the waste water introduced into the guide pipe 26 is directly guided from the opening 64 to the outer circumference of the lower end of the deodorizing tube 18, and thereafter is discharged to the outside through the drain port 12 in the same manner as in the above case. Since the lower end of the protrusion 62 is close to the bottom of the water-sealing tank 16 and the opening 64 is opened toward the outer periphery, drainage from the washing machine is exclusively led to the outside of the deodorizing cylinder 18. A portion of the wastewater guided into the water sealing tank 16 from the opening 64 of the guide pipe 26 will flow into the deodorizing cylinder 18 again, but at this time, most of the bubbles will flow into the upper end of the water sealing tank 16. Since it is located on the side, there is almost no possibility that bubbles will flow into the deodorizing cylinder 18.

In this way, according to the present embodiment, with the outer circumferential surface of the guide tube 26 in contact with the inner circumferential surface of the deodorizing cylinder 18,
The guide tube 26 is integrally formed with the deodorizing tube 18, and a protrusion 62 is provided at the lower end of the guide tube 26, which protrudes from the lower end of the deodorizing tube 18 toward the bottom of the water sealing tank 16. Projection 62
An opening 64 is provided in a portion facing the inner wall surface of the water sealing tank 16.
is provided, so that the waste water from the washing machine containing a large amount of soap components introduced into the guide pipe 26 from the drain pipe connection port 22 of the perforated plate 24 is directly guided to the outer periphery of the lower end of the deodorizing cylinder 18. As a result, even if bubbles are contained from the beginning or bubbles are generated, the bubbles are generated exclusively on the outside of the deodorizing cylinder 18, so that it is effective to prevent bubbles from overflowing from inside the deodorizing cylinder 18 onto the perforated plate 24. This can be effectively prevented.

Further, the guide pipe 26 is provided eccentrically in contact with the inner circumferential surface of the deodorizing cylinder 18, and a guide portion for guiding the waste water to the outside of the deodorizing cylinder 18 is provided at the lower end of the guide pipe 26, as in the conventional case. Since this is not necessary, the flow area at the lower end of the deodorizing tube 18 can be secured to be larger than that in the past, and the drainage capacity of the waste water introduced from the floor through the water passage hole 20 of the perforated plate 24 can be greatly increased. be.

Here, FIG. 4 is a plan sectional view showing the main parts of a conventional drainage trap, in which the guide pipe 70 has an inverted T-shape, and the first guide pipe 70 is provided approximately concentrically with the deodorizing tube 72.
The guide part 74 includes a guide part 74 and a second guide part 76 that extends from the lower end of the first guide part 74 in both directions perpendicular to the axis thereof and guides drainage from the washing machine etc. to the outer periphery of the lower end of the deodorizing tube 72. has been done. In this case, in order to obtain sufficient drainage capacity by the guide pipe 70 without increasing the height of the drain trap, it is necessary to ensure a relatively large width of the second guide part 76. Due to the presence of the second guide portion 76, it is inevitable that the flow area of the lower end portion of the second guide portion 72 is greatly restricted as shown by the dashed line in the figure. For this reason, there was a problem in that a sufficient drainage capacity for drainage from the floor introduced between the deodorizing tube 72 and the first guide portion 74 could not be obtained.

On the other hand, according to this embodiment, the flow area at the lower end of the deodorizing cylinder 18 can be secured to be larger than that of the conventional art, as shown by the dashed line in FIG. This makes it possible to further increase the drainage capacity of the waste water introduced into the deodorizing cylinder 18 through the water passage hole 20. In this case, for example, the inner diameter of each lower end of the deodorizing tubes 18 and 72 is set to 60 mm.
In addition, when the outer diameter of the lower end of the guide tube 26 and the first guide part 74 is set to 35 mm, and the width of the second guide part 76 is set to 35 mm, the circulation area is approximately twice as large as that of the conventional one. You can get it.

Furthermore, according to this embodiment, the guide tube 26 has a simple cylindrical shape and is molded integrally with the deodorizing tube 18. As well as making molding easier,
There is an advantage that there is no need to take into account rattling prevention as in the conventional guide tube 70.

In the above embodiment, the outer circumferential surface of the guide tube 26 is fixed to the inner circumferential surface of the small diameter section 46 over the entire length in the axial direction, but this is not necessarily necessary. It may be fixed to the guide tube 26 only at the lower end. In short, it is sufficient that the guide tubes are fixed to each other in a state in which the outer circumferential surface of the guide tube substantially contacts the inner circumferential surface of the deodorizing tube.

Further, in the above-mentioned embodiment, the opening 64 is provided at a position close to the drain port 12, but this is not necessarily necessary, and it may be provided at any other position as long as it faces the inner wall surface of the water sealing tank 16. It's okay.

Further, in the above embodiment, the guide tube 26 is opened at both ends in the axial direction, but the guide tube 26 may have a bottom at the lower end of the protrusion 62.

Further, in the above embodiment, the opening 64 is formed by cutting out the portion of the protrusion 62 that faces the inner wall surface of the water sealing tank 16. A protrusion may be provided that protrudes a predetermined distance toward the inner wall surface.

Further, the guide tube 26 does not necessarily need to be molded integrally with the deodorizing tube 18, and both members may be molded separately and then integrally fixed to each other with an adhesive.

Further, in the above embodiment, the water sealing tank 16 is configured to have a peripheral wall on the inner peripheral side of the main body 14, but it does not necessarily have to be configured in this way. A water-sealing tank may be formed by providing a partition wall of a predetermined height between the tank 12 and the tank 12.

In addition, various changes may be made to the present invention without departing from the spirit thereof.

[Brief explanation of the drawing]

FIG. 1 is a front sectional view of a drainage trap to which the present invention is applied. FIG. 2 is a plan view of FIG. 1. FIG. 3 is a diagram illustrating a main part of a cross section taken along the line - in FIG. 1. FIG. 4 is a diagram showing the main parts of a conventional drainage trap, and corresponds to FIG. 3. 10: Drain trap, 12: Drain port, 14: Main body, 16: Water sealing tank, 18: Odor prevention cylinder, 20: Water hole, 22: Drain pipe connection port, 24: Perforated plate, 26: Guide pipe, 62: Projection Part 64: Opening.

Claims (1)

[Scope of Claim for Utility Model Registration] A main body that has a container-shaped water sealing tank and discharges wastewater overflowing from the upper end of the water sealing tank to the outside from a drain opening that opens on the side, and a tubular-shaped water sealing tank. an odor-proof cylinder that is received in the interior and whose upper end opening is covered by a perforated plate having a large number of water passage holes and a drain pipe connection port; In a drainage trap equipped with a guide pipe that directly guides the introduced wastewater to the outer periphery of the lower end of the odor-proof cylinder, the guide pipe is fixed with its outer circumferential surface substantially in contact with the inner circumferential surface of the odor-proof cylinder. On the other hand, at the lower end of the guide tube, a protrusion that protrudes from the lower end of the deodorizing cylinder toward the bottom of the water sealing tank is provided, and an opening is provided in a portion of the protrusion that faces the inner wall surface of the water sealing tank. A drainage trap characterized by: