JPH1018382A - Odor stop device for drain pipe - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent odor from a sewage side in a water drain port sourely and drain waste water smoothly without collecting and overflowing it even if a large quantity of waste water flows. SOLUTION: An odor stop lid 5 having an open and close shut-off cylinder 6 of which lower fringe is immersed in a water collection part 2 formed around an upper end of a drain pipe 1 is arranged in an upper part of the drain pipe 1 which is connected to a drain port T and is communicated with a sewerage side. The open and close shut-off cylinder 6 around the odor stop lid 5 has flexibility so that it is bent inward of the drain pipe 1, and a position of a bending basic part in the open and close shut-off cylinder 6 itself is set to a higher position when compared with a position of an upper end fringe in the drain pipe 1. Moreover, the odor stop lid 5 is supported and fixed in such a manner that its height position can be adjusted freely below a drain flat perforated plate S which is detachably arranged on a top face of the water drain port T through a support means 10 formed in the drain flat performated plate S. This support means 10 consists of a mounting bolt 11 which is fixed below the drain flat perforated plate S and is inserted through a top plate part 7 of the odor stop lid 5 and a pair of upper and lower mounting nuts 12 which are brought into pressure-contact with upper and lower faces of the top plate part 7 from above and below the top plate part 7 and lock it to the mounting bolt 11 by screwing.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention mainly prevents odors from the sewage side in drain pipes such as bathrooms and sinks in general houses, sewage pipes and other drainage pipes, but does not accumulate waste water etc. in the sewage side The present invention relates to an odor control device for drainage pipes, which drains water very smoothly.

[0002]

2. Description of the Related Art At the end of a drain pipe, a drain trap for preventing odor generated on the sewage side is provided. This drain trap itself completely blocks odor from the sewage side, backflow water and the like. On the other hand, it is required to discharge wastewater smoothly to the sewage side. For this reason, one of the odor control devices of this type that has been conventionally proposed is, for example, to store water in an annular groove-shaped water reservoir surrounding the drain pipe so as to communicate with the drain pipe around the upper part of the drain pipe. In addition, a rigid odor stop lid immersed in the water reservoir is disposed at a drain port formed above the drain pipe. The wastewater drained through the drainage port flows into the drainage pipe through a slight gap between the lower edge of the odor stopper lid and the upper surface of the water reservoir, and is drained. The odor on the sewage side is accumulated in the water reservoir. The odor-stopper immersed in water is sealed with water so that it does not flow upstream.

[0003]

However, according to the conventional odor control device, the effective cross-sectional area of the outlet is small because the height of the gap between the lower edge of the odor control cover and the upper surface of the water reservoir is small. Is very small, it becomes difficult to flow when there is a large amount of wastewater, and substantial clogging may occur and overflow may occur at the drain. This is also due to the fact that the height difference between the upper edge of the drain pipe and the upper surface of the water pool is set to be large so as to prevent the inflow of odor from the sewage side, and the drainage efficiency is further deteriorated. It was also a thing.

In addition, if the drainage port overflows during drainage and the wastewater temporarily accumulates, the pooled water that had accumulated in the water pool before drainage may rise to the upper portion of the drainage port so as to boil. The odor due to the accumulated water was dissipated to the surroundings, which sometimes caused discomfort.

Accordingly, the present invention has been made in view of the above-described various existing circumstances, and prevents the ingress of odor on the sewage side by being immersed in pool water retained in a water pool section. Of course, even if there is a large amount of wastewater, even if it is temporary or large, it can be drained smoothly without stagnation or overflow, and the efficiency can be further increased due to the negative pressure in the drain pipe caused by the drainage It is an object of the present invention to provide a drain pipe odor control device capable of draining water.

[0006]

In order to achieve the above-mentioned object, according to the present invention, the upper end of the drainage pipe 1 is connected to the drainage port T above the drainage pipe 1 communicating with the sewage side. An odor control lid 5 having an open / close shield tube 6 whose lower edge is immersed in accumulated water W in a water pool portion 2 formed around the odor stop cover 5 is provided. It is assumed that it is flexible to bend inward of the pipe 1, and the bending base position of the opening / closing shield tube 6 itself is set to be higher than the upper end edge position of the drain pipe 1. Further, the odor preventing lid 5 is supported and fixed by adjusting the height position below the drainage dish S via the support means 10 formed on the drainage dish S which is detachably disposed on the upper surface of the drainage port T. The support means 10 is fixed below the drainage dish S, and is provided with a mounting bolt 11 inserted through the top plate 7 of the odor control lid 5 and a top plate 7.
And a pair of upper and lower mounting nuts 12 which are pressed into contact with the upper and lower surfaces of the top plate 7 from above and below and are screwed to the mounting bolts 11.

In the odor control device for a drain pipe according to the present invention constructed as described above, the supporting means 10 formed below the drainage dish S is provided with an odor control lid 5 for holding a water pool around the upper end of the drain pipe 1. The height of the opening and closing shield tube 6 is freely adjusted so as to be immersed in the pool water W in the container 2 and is supported and fixed, and the upper end opening of the drain pipe 1 is covered with the odor preventing lid 5 so that the upper end opening of the drain pipe 1 is opened. Shut off from the outside, traps odors on the sewage side and does not dissipate. When waste water flows into the drain port T, the open / close shield cylinder 6 of the odor stop lid 5 is bent inward of the drain pipe 1 by the waste water pressure applied from outside thereof, and the drain pipe 1
The upper portion of the upper end opening is largely opened so that the waste water flows into the drain pipe 1 without resistance. As the water flows into the drain pipe 1 and is drained, a negative pressure is generated at the upper end of the drain pipe 1, and the opening / closing shield tube 6 is further drawn into the drain pipe 1 to make the drain water smooth. When the drainage is completed, the opening / closing shield cylinder 6 returns to the original position, and the lower edge is immersed in the pool water W remaining in the water pool portion 2 so that the upper part of the drain pipe 1 is closed, and the odor on the sewage side is again reduced. Lock it up.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described with reference to the drawings. Reference numeral 1 shown in the drawings is connected to a drain port T in a bathroom, a sink, or the like, and communicates with a sewage side. The upper end of the drainage pipe 1 is located protruding above the bottom of the drainage outlet T, which is larger in diameter than the diameter of the drainage pipe 1, and the periphery of the upper end of the drainage pipe 1 is This is a groove-shaped water pool portion 2 having a planar and annular shape.

Above the drain pipe 1, there is provided a flexible opening / closing cylinder 6 whose lower edge is immersed in, for example, about 2 to 3 mm in the pool water W in the water pool section 2, and covers the drain pipe 1 above. The odor preventing lid 5 is provided and fixed via the supporting means 10. The support means 10 is attached to, for example, a drainage dish S which is detachably mounted on the upper surface of the drainage port T as shown in the drawing. It is arranged in. The immersion depth of the lower edge of the opening / closing cylinder 6 in the accumulated water W is the drainage port T.
It varies depending on the size of the opening, and in some cases, it may be set to about 10 to 15 mm or more, and the lower edge of the open / close shield cylinder 6 comes into contact with the bottom of the water pool 2. Sometimes.

The odor stopping lid 5 itself is provided with an airtight cylindrical opening / closing shielding tube 6 hanging around a substantially disk-shaped top plate portion 7 located above the drain pipe 1, and is open downward. The opening / closing shield cylinder 6 is easily bent by a pressing action from inside and outside, and returns to its original position when the pressing action is released. In the drawing, for example, a soft rubber material such as a band-shaped or plate-shaped material or a synthetic resin material having an appropriate width is adhered around a substantially disk-shaped top plate portion 7 made of a hard synthetic resin, thereby opening and closing a shielding cylinder. It is set to 6. Naturally, it is sufficient if the opening / closing shield cylinder 6 has flexibility, so that the top plate 7 can be hardened, and the opening / closing shield cylinder 6 can be softened to form an integral unit. It is also possible to form the entire body including the top plate part 7 with a soft material.

When the opening / closing shield tube 6 itself is bent inward of the drain pipe 1, its bending base position is set to be higher than the upper end edge position of the drain pipe 1. In such a case, the waste water does not hit the upper edge of the drain pipe 1 and detour, and flows directly into the upper end opening of the drain pipe 1 from the edge of the top plate 7 or the bending base position in the open / close shield cylinder 6. It is.

Although not shown, a large number of grooves extending in the vertical direction can be formed in the opening / closing shield cylinder 6 itself, so that the opening / closing cylinder 6 can have a flare skirt shape. And the guide of the flow of waste water into the drain pipe 1 can be made extremely smooth.

The support means 10 is fixed below the drainage dish S, and is attached to the mounting bolt 1 which is inserted through the top plate 7 of the odor control lid 5.
And a pair of upper and lower mounting nuts 1 that are pressed against upper and lower surfaces of the top plate 7 from above and below the top plate 7 and screwed to the mounting bolts 11.
2 is provided. According to this supporting means 10, by selecting the screwing position of the mounting nut 12 with respect to the mounting bolt 11, the odor preventing lid 5 can be supported and fixed at a predetermined height from the drainage dish S position, The edge can be adjusted and set at a immersion depth position required in the pool water W of the water pool section 2.

Although not shown, the supporting means 10 does not support the odor preventing lid 5 in relation to the drainage dish S, but instead includes an appropriate number of support members which are engaged with the upper end of the drain pipe 1 by the odor preventing lid. 5 and a suitable number of beams can be attached to the top plate portion 7 of the odor control lid 5 so as to be fixed to the top plate portion 7 of the drain port T, or an appropriate number of beam members engaging with the periphery of the drainage port T can be attached. . That is, it is only necessary that the lower edge of the opening / closing shield cylinder 6 of the odor preventing lid 5 is accumulated and immersed in the water W, and the disposition fixing means of the odor preventing lid 5 itself is not particularly limited. It is.

In another embodiment shown in FIG. 3, the upper surface of the water pool 2 where the lower edge of the open / close shield cylinder 6 in the odor control lid 5 abuts follows the inward bending of the open / close shield cylinder 6. It is formed on a curved surface. In this way, when the open / close shield cylinder 6 is bent inward, it can be smoothened and the shielding performance inside and outside the drain pipe 1 can be further ensured.

Next, an example of the use of this will be described. The odor preventing lid 5 is fixedly supported by a supporting means 10 formed below the drainage dish S at the drain port T. The lower edge of the opening / closing shield tube 6 is the drain pipe 1
The supporting height is set so as to be immersed in the pool water W stored in the water pool 2 formed around the upper end. When wastewater is present in this manner, as shown in FIG. 2, the wastewater has a wastewater pressure that presses it from the outer periphery of the opening / closing shield cylinder 6, so that the opening / closing shield cylinder 6 is bent inward. The drainage pipe 1 is bent and narrowed, and the upper part of the drainage pipe 1 is largely opened.

Since a negative pressure is generated in the drain pipe 1 together with the inflow into the drain pipe 1, the opening / closing shield tube 6 is further bent inwardly into the drain pipe 1, and the waste water flows into the drain pipe 1. It facilitates drainage. When drainage is completed, the opening / closing shield tube 6 returns to its original position, and the lower edge of the opening / closing shield tube 6 is immersed in the pool water W remaining in the water pool portion 2 without overflowing from the upper end edge of the drain pipe 1. As a result, the upper end opening of the drain pipe 1 is completely shut off from the outside of the odor preventing lid 5, and the odor in the drain pipe 1 is not radiated to the outside, thus preparing for the next operation.

[0018]

Since the present invention is constructed as described above, the flexible opening / closing shield tube 6 is immersed in the pool water W staying in the water pool section 2 so that the sewage side is closed. The opening and closing shield tube 6 bends inward of the drainage pipe 1 even if there is a large amount of wastewater, even if it is temporary or a large amount of wastewater. The drainage can be drained smoothly because it is widely opened, and can be drained more efficiently due to the negative pressure in the drainage pipe 1 caused by the drainage.

That is, in the present invention, the drain pipe 1
The lower edge of the open / close shield cylinder 6 having flexibility toward the inside of the drainage pipe 1 is immersed in the pool water W in the water pool section 2 in the odor blocking lid 5 arranged so as to cover the upper part of the drain pipe 1. This ensures that the upper end opening of the drain pipe 1 is shut off from the outside to prevent the odor from being diffused and that even if there is a large amount of waste water, it can be drained smoothly without overflowing in the drain port T. is there.

The position of the bending base of the opening / closing shield cylinder 6 itself is set to be higher than the upper end edge position of the drainage pipe 1. Therefore, the opening / closing shield cylinder 6 itself is bent by external wastewater pressure on the opening / closing shield cylinder 6. At this time, the outlet at the upper end of the drain pipe 1 can be largely opened, and the drain can be guided into the drain pipe 1 very smoothly without giving any resistance to the drain flow. In addition, wastewater flows into the drain pipe 1,
A negative pressure is generated at the upper end of the drain pipe 1 as the water is drained, and the negative pressure causes the opening and closing shield tube 6 to be further drawn into the inside of the drain pipe 1 so that the drain can be drained very smoothly. It is.

The odor stopping lid 5 is supported and fixed by adjusting the height position below the drainage dish S via supporting means 10 formed on the drainage dish S which is detachably disposed on the upper surface of the drainage port T. Therefore, the drainage pipe 1 and the water pool 2 can be exposed by attaching and detaching the drainage dish S, and cleaning and the like thereof can be performed extremely easily. Moreover, the support means 10 is fixed below the drainage dish S, and is provided with mounting bolts 11 inserted through the top plate 7 of the odor preventing lid 5 and a top plate 7 from above and below the top plate 7.
Since it consists of a pair of upper and lower mounting nuts 12 pressed against the upper and lower surfaces and screwed to the mounting bolts 11,
By adjusting the screwing position of the mounting nut 12 with respect to the mounting bolt 11, the position of the support height from the drainage plate S can be freely adjusted, the versatility of the installation can be obtained, and the drainage ports having various forms, structures, depths, and the like are different. Even if it is T, it can respond to it promptly.

When the drainage is completed, the opening and closing shielding cylinder 6 is opened.
Is returned to the original position, so that the lower edge is immersed again in the pool water W remaining in the water pool portion 2, and the upper part of the drain pipe 1 is closed by the odor blocking cover 5, so that the drain pipe 1 is closed. It traps the odor again and does not disperse it outside.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view according to an embodiment of the present invention.

FIG. 2 is a longitudinal sectional view of the same.

FIG. 3 is a longitudinal sectional view of another embodiment.

[Explanation of symbols]

S: drainage tray T: drainage port W: pool water 1: drainage pipe 2: water pool section 5: odor blocking cover 6: open / close shielding cylinder 7: top plate section 10: support means 11: mounting bolts 12: mounting nut

Claims (5)

[Claims] 1. An opening / closing shield cylinder having a lower edge immersed in pooled water in a water pool formed around an upper end of a drainage pipe above a drainage pipe connected to a drainage port and communicating with a sewerage side. An odor control device for a drain pipe, wherein an odor control lid is disposed, and a surrounding open / close shield cylinder of the odor control lid is flexible so as to bend inward of the drain pipe. 2. The odor control device for a drain pipe according to claim 1, wherein the position of the base of the deflection in the opening / closing shield cylinder itself is set to be higher than the position of the upper edge of the drain pipe. 3. The odor control lid is supported and fixed so that its height can be adjusted below the drainage dish via support means formed on the drainage dish which is detachably disposed on the upper surface of the drainage port. 3. The odor control device for drainage pipes according to 1 or 2. 4. The supporting means is fixed below the drainage dish, and is attached to a mounting bolt inserted through the top plate of the odor control lid, and is screwed to the mounting bolt by pressing the top plate vertically from above and below the top plate. The odor control device for a drain pipe according to claim 3, comprising a pair of upper and lower mounting nuts to be stopped. 5. A lower edge is immersed in pool water in a pool formed around an upper end of the drain pipe above a drain pipe connected to a drain port and communicating with a sewer side. An odor stop lid having a flexible opening / closing shield tube that is bent inward is disposed, and the bending base position of the open / close shield tube itself is set higher than the upper end edge position of the drain pipe, and the odor is reduced. The stop lid is fixed to the bottom of the drain plate, which is detachably arranged on the upper surface of the drain port, and is pressed against the mounting bolt inserted through the top plate of the odor stop lid and the top and bottom surfaces of the top plate from above and below the top plate An odor control device for a drain pipe, wherein the odor control device is supported and fixed so that a height position thereof can be adjusted below a drainage plate via support means including a pair of upper and lower mounting nuts screwed to mounting bolts. .