JPH059965A - Draining trap - Google Patents

Abstract

PURPOSE:To miniaturize the whole body to reduce the resistance in a drainage confluence, and prevent the clogging by garbage of the confluence part by inclining the central axial line of a drainage joining pipe eccentrically to the center of the circular or ring cross section of a sealed storage chamber. CONSTITUTION:A main body 1 is formed into a cylindrical body opened up, and a cap plate is continuously provided on the top end of the funnel cylinder 12 on this opened end part. A cylinder 11 is formed integrally and concentrically to the main body 1, and the bottom wall of the cylinder 11 is protruded downward from the bottom wall of the main body 1. Two joining pipes 14 are horizontally protruded from the protruding drum part of the cylinder 11 to communicate with the inner part of the cylinder 11. The combining pipes 14 are off-center by a fixed distance D from the center of the cylinder 11 forming a sealed storage chamber 10, and the eccentric directions of both the combining pipes 14 are set circumferentially in the same direction. The turning direction of the drainage flowing from the joining pipes 14 is conformed with the direction of the drainage circumferentially turning and lowering on the low wall of the main body 1. The flow of water reaching an exhaust pipe 2 from the cylinder 11 internal part through a ring passage is smoothed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drain trap, and more particularly to a drain trap of a type in which a plurality of drain paths are joined.

[0002]

2. Description of the Related Art Drainage traps are used in kitchen sinks and drainage circuits such as bathtubs to prevent backflow of odors. As shown in FIGS. 1 and 4, in this type of drain trap, a drainage pipe (2) is connected to a tubular main body (1) that opens upward, and the drainage that flows in from the upper open part is It is discharged from the discharge pipe (2) through the sealed water storage chamber (10) provided in 1). The sealed water storage chamber (1
There are two types of 0) configurations,
In FIG. 1, the sealed water storage chamber (10) is formed inside a cylindrical body (11) that is open upward and protrudes from the bottom of the main body (1), and the funnel cylinder (12) is formed from the open end of the main body (1). The downstream end of (1) faces the inside of the sealed water storage chamber (10). On the other hand, in the case of FIG. 4, an annular water storage chamber (10) is formed between the outer circumference of the tubular body (11) and the inner circumference of the main body (1), and the bowl (1
3) Inverted and capped on the tubular body (11), the tubular body (11)
The inside is communicated with the discharge pipe (2). In any of these types of drain traps, the sealed water storage chamber (10) is located on the path from the inflow portion to the discharge pipe (2), and this sealed water can prevent backflow of odors.

Of these, when joining a plurality of drainage paths, the former type is usually adopted, and as shown in FIGS. 1 and 2, a tubular body provided in the main body (1). The merging pipe (14) (1) so as to directly communicate with the inside of (11)
4) are connected in a horizontal direction. In the illustrated example, three merging pipes (14) (14) are provided and each merging pipe (14) is provided.
Are arranged radially from the center of the cylindrical body (11). This type of drain trap, for example, as shown in FIG.
It is installed in a bathroom washing room, and the confluence pipe (14) is connected with a drain pipe from the washbasin and a drain pipe of the overflow circuit (L) of the bathtub (A). It has the advantage that it is blocked by odor and the backflow of odor can be prevented.

However, in this conventional device, when a plurality of drainage paths are joined, the resistance of the flow of water at the joining point is large, and the drainage pipe (2) smoothly moves from the sealed water storage chamber (10). To ensure smooth drainage without drainage,
It is necessary to set 1) and the main body (1) large to increase the cross-sectional area of each drainage circuit in the main body (1). As a result,
There is a problem that the drain trap itself becomes large. or,
There is a problem that dust and foreign matter are easily clogged at the drainage confluence. This is because each confluence pipe (14) has a sealed water storage chamber (1
Since it is arranged so as to be orthogonal to the center of (0), the inflow / outflow water from the confluent pipe (14) collides with the body of the tubular body (11) and the funnel tube (12), and this portion This is because a turbulent flow occurs in the discharge pipe (2) and the discharge pipe (2) does not flow smoothly.

[Problem] The present invention has been made in view of the above point, and "The drainage inflow portion from the upper end opening portion of the main body (1) is discharged through the sealed water storage chamber (10) to the discharge pipe (2). ) And a drain pipe (14) that serves as another drainage inflow part
In order to make it possible to reduce the size of the drain trap and prevent dust clogging at the drain junction, etc., in the drain trap of the type that communicates with the sealed water storage chamber (10). The task is to make the flow of water smooth.

[0006]

[Technical Means] A technical means of the present invention for solving the above-mentioned problem is that "a cross section of a sealed water storage chamber (10) is circular or annular, and the sealed water storage chamber (10) has a cross-sectional center with respect to its center. The central axis of the confluence pipe (14) is eccentric. "

[0007]

The above technical means operates as follows. Both the inflow drainage from above the main body (1) and the inflow drainage from the confluence pipe (14) flow into the sealed water storage chamber (10), and the drainage flowing out from this is discharged from the discharge pipe (2). Since the sealing water storage chamber (10) has a circular or annular cross section and the merging pipe (14) is eccentric with respect to the center of the sealing water storage chamber (10), The inflowing wastewater becomes a swirl flow, rises in the sealed water storage chamber (10), and flows out from the upper end thereof to the discharge pipe (2) side. Therefore,
As in the conventional case, the inflow drainage from the confluent pipe (14) smoothly flows out of the sealed water storage chamber (10) without colliding at right angles with the wall surface of the sealed water storage chamber (10).

[0008]

[Effect] Since the inflowing wastewater that has joined from the joining pipe (14) becomes a swirling flow and smoothly flows out from the sealed water storage chamber (10), there is little resistance at this drainage joining point, and the drainage trap becomes smaller accordingly. This makes it possible to prevent clogging of dust in this area.

[0009]

Embodiments of the present invention described above will now be described in detail with reference to the drawings. In the embodiment shown in FIGS. 5 to 7, as shown in FIG. 6, two confluence pipes (14) are installed in the drain trap of the type shown in FIG. As shown in FIG. 5, the main body (1) is a tubular body that opens upward, and the open end portion has a lid plate (1) connected to the upper end of the funnel cylinder (12).
5) is equipped with a female screw portion (16) for screwing and mounting, and a flange (F) is projected to the outside thereof. A tubular body (11) is integrally and concentrically formed in the main body (1), and the bottom wall of the tubular body (11) is located below the bottom wall (17) of the main body (1). This cylinder (1
Two merging pipes (14) project horizontally from the projecting barrel of (1) and communicate with the inside of the tubular body (11).

The merging pipe (14) is, as shown in FIG.
It is eccentric by a fixed distance (D) from the center of the cylindrical body (11) that constitutes the sealed water storage chamber (10), and both confluence pipes (1)
The eccentric direction of 4) is set to the same direction in the circumferential direction. Due to this eccentricity, the drainage flowing in from the confluent pipe (14) swirls in the sealed water storage chamber (10) and rises along the body of the tubular body (11) to rise to the inner wall of the tubular body (11) and the main body (1). Flows out of an annular passage (20) formed between and to a discharge pipe (2) communicating therewith. In particular, in this embodiment, the tubular body (1
The bottom wall (17) of the main body (1) that overhangs the outer periphery of the body of (1) is formed in a spiral shape. That is, the bottom wall (17) is configured to descend along the outer circumference of the tubular body (11).
In FIG. 6, the bottom wall (17) gradually descends as it circulates counterclockwise from the upper portion of the discharge pipe (2) to reach the busbar portion below the discharge pipe (2).

In the case of this embodiment, since the eccentric direction of the confluent pipe (14) is also set counterclockwise in FIG. 6, the swirling of the drainage flowing from the confluent pipe (14) in the tubular body (11) is performed. Since the direction and the direction in which the drainage flowing out from the upper end of the tubular body (11) descends around the bottom wall (17) are the same, the discharge pipe (2) is passed from the inside of the tubular body (11) through the annular passage (20). The flow of water to is also smooth. The drain trap having the above structure is attached to an opening formed in a floor plate of a bathroom washing room. At this time, a packing (P) having a U-shaped cross-section is attached to the periphery of the opening, the female screw portion (16) of the main body (1) is aligned with the opening, and the main body (1) is attached to the back surface of the floorboard. A cylindrical screw (18) provided on the lower surface of the lid plate (15) near the outer periphery is screwed into the female screw portion (16). With this, the floor plate and the upper end of the main body (1) are attached in an airtight state. In this state, the open end of the main body (1) is closed by the cover plate (15), but a large number of water holes are opened in the upper region of the funnel cylinder (12) which is integral with the cover plate (15), and the washing place The drainage from the water flows into the sealed water storage chamber (10) through the water passage, and the annular passage (20).
Is discharged to the discharge pipe (2).

In the drain trap of the above embodiment, the number of the merging pipes (14) is two, but as shown in FIG. 8, the three merging pipes (14) are eccentric in the same direction to form the barrel of the tubular body (11). It may be connected to the lower part, and the confluence pipe (14)
However, the present invention can be applied to one type of drain trap.
The present invention can also be applied to a drain trap of a type using a bowl (13). In this case, a joining pipe (14) is eccentrically connected to the lower part of the body of the main body (1). The swirling force is applied to the waste water flowing from the funnel cylinder (12) into the sealed water storage chamber (10), whereby the water flow in this path can be smoothed. For this purpose, as shown in FIG. 9, it is conceivable to provide a spiral rib (R) on the inner peripheral wall of the funnel cylinder (12) so as to project. Incidentally, each part of the above embodiment is
All of them are made of synthetic resin, and there is no fear of rust or corrosion.

[Brief description of drawings]

FIG. 1 is a sectional view of a conventional example.

[Figure 2] Plan view

FIG. 3 is an explanatory diagram of a usage example of a drain trap.

FIG. 4 is an illustration of another type of drain trap.

FIG. 5 is a sectional view of an embodiment of the present invention.

FIG. 6 is a sectional view taken along line XX.

FIG. 7 is a side view from the side of the discharge pipe (2).

FIG. 8 is a plan view of the case where there are three merging pipes (14).

FIG. 9 is an explanatory view of a modified example of the funnel cylinder (12).

[Explanation of sign]

 (1) ・ ・ ・ Main body (10) ・ ・ ・ Sea water storage chamber (2) ・ ・ ・ Discharge pipe (14) ・ ・ ・ Join pipe

Claims (1)

Claim: What is claimed is: 1. A drainage inflow portion from the upper end open portion of the main body (1) communicates with a discharge pipe (2) through a sealed water storage chamber (10) and another drainage inflow portion. In the drain trap of the type in which the confluence pipe (14) that becomes the above is communicated with the sealed water storage chamber (10), the cross section of the sealed water storage chamber (10) is circular or annular, and the sealed water storage chamber (10) A drain trap in which the central axis of the confluent pipe (14) is eccentric with respect to the center of the cross section.