JP2002161563A - Drainage trap - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a hygienic drainage trap capable of improving cleaning property of the drainage trap and generating no superfluous water accumulating section. SOLUTION: In a drainage trap provided with a drain outlet 8 leading drainage to a seal water part 2 accumulating drain and forming a seal water, a water pass 3 in which overflowing drain flows through the seal water part 2, and a drain outlet 4 through which the drain passing through the water pass 3 is drained in a sewerage system or the like, a seal water wall 2a for forming the seal part 2 is formed in the drain outlet 4. Or the bottom wall 3a of the water pass is provided at the same height with the upper end of the seal water part 2 or a higher level.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a wash basin or a sink,
The present invention relates to a drain trap for draining a bathtub or a drainage device such as a waterproof pan used for the bathtub.

[0002]

2. Description of the Related Art Conventionally, drainage devices such as wash basins, sinks, bathtubs, and waterproof pans used for them have been described.
A drainage device called a drainage trap is provided for discharging the wastewater from these drainage devices to sewage and the like, and at the same time, preventing odors and pests from flowing backward from the sewage side. The main use of these drain traps is
In the drain trap shown in FIG. 10, a water-sealing portion for storing the drainage is provided in the middle of the drainage flow passage, and the backflow of the odor and pests is prevented by the water-sealing portion. less than,
This conventional drain trap will be described with reference to the drawings.

[0003] The conventional drain trap shown in FIG. 10 has a bottomed cylindrical water-sealing portion, a water passage having a bottom wall at an intermediate position of a side wall of the water-sealing portion, and a water drain provided on a side surface of the water passage. An outlet, and a cylindrical member provided with a flange piece in a lateral direction, the cylindrical member having a discharge port inside, and a male screw screwed into an outer peripheral portion with an opening of the trap body. And a substantially cylindrical member opened up and down, wherein the upper side is watertightly and detachably attached to the flange member, and the lower side is disposed in the water sealing portion to form a water seal. And an anti-odor cylinder.

When drain water flows from the drain port to the above-described drain trap attached to a waterproof pan or the like, the drain water passes through the drain port, passes through the odor prevention tube, accumulates in the water sealing section, and the upper end of the water sealing section overflows. The drained water is discharged from the outlet through a water channel to sewage. On the other hand, when odors and pests flow backward from the sewage and the like, odors and pests cannot pass through the sealed portion where the sealed water is accumulated, so that the odors and pests etc. Can be prevented from entering.

[0005]

By the way, in the above-mentioned conventional drain trap, in order to secure drainage performance, the bottom wall of the water passage is formed at an intermediate position of the side wall of the water sealing portion, and the water passage is formed. Are configured to have as large a vertical cross-sectional area as possible. In the drain trap, the deodorizing cylinder is periodically removed for cleaning in order to remove dust and dirt attached to the inside, but in the drain trap configured as above, the inside of the trap body is
Because it is divided by the side wall of the water sealing part,
The gap between the water sealing part and the water passage or the upper end of the water sealing part to the upper wall of the trap body becomes narrow, and it is difficult to clean the inside of the trap body, particularly near the bottom wall of the water passage, by hand. .

However, the width from the upper end of the water sealing portion to the lower end of the deodorizing cylinder (hereinafter referred to as "water sealing depth") is limited to some extent by JIS standards or the like. When the space between the upper part and the upper wall of the trap body is widened, the total height of the drain trap must be increased accordingly in order to meet the standard of the sealing depth. As described above, when the total height of the drain traps is increased, it is required to increase the height of the underfloor piping portion in which the drain traps are disposed, thereby causing a problem such as inefficient use of the space in the house. .

[0007] The height position of the discharge port is also an important factor in the structure of the drain trap. The drainage flowing out of the outlet is naturally discharged by a gradient set in a pipe connected to the outlet. Therefore, if the inclination angle is the same, it is advantageous that the outlet is located at a higher position because the pipe can be arranged farther away. However, if the position of the discharge port is simply raised as shown in FIG. 11, as shown in (D) of FIG. Since the polluted substances of sewage adhere to the water pool and various bacteria grow, it is better not to have unnecessary water pools as much as possible. It is not allowed in some standards. As described above, when the position of the discharge port is increased, there is a problem that an excess water pool is generated in the drain trap.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and provides a drain trap which can easily clean the inside and does not generate an excess water accumulation portion. is there.

[0009]

According to a first aspect of the present invention, there is provided a drain trap, wherein a drain port into which drain water flows, a water sealing portion for collecting the drain water to form a sealed water, and the drain water overflowing the water sealing portion flow. A drain trap comprising: a water passage; and a discharge port that discharges drainage flowing through the water passage to sewage, and the like, and a water sealing wall for forming a water sealing portion is provided at the discharge port. .

A drain trap according to a second aspect of the present invention includes a drain port into which drain water flows, a water sealing portion for storing the drain water to form a seal, a water passage through which the waste water overflows the water sealing portion, and a water passage. The drain trap is provided with a discharge port for discharging the wastewater flowing through the drain to sewage or the like, and the bottom wall of the water passage is located at the same height as or higher than the upper end of the water sealing portion.

[0011] In the drain trap according to the third aspect, paragraph 0
The drain trap described in paragraph 009 or paragraph 0010, wherein the water sealing portion and the water passage form a concentric circle centered on the drain hole in plan view.

[0012] The drain trap according to claim 4 is the same as that in paragraph 0.
The drain trap according to any one of paragraphs 009 to 0011, wherein an inclination is provided from an upper end of the water sealing portion to a lower end of the discharge port.

[0013] The drain trap according to claim 5 is the same as the paragraph [0].
The drain trap described in any one of paragraphs 009 to 0012, wherein the water sealing section is provided with a branch pipe portion into which drain water from another drain device flows.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described with reference to the drawings. The first embodiment of the present invention shown in FIGS. 1 to 3 is composed of the following members such as a trap body (1), a flange member (7), and an odor preventing cylinder (10). The trap body (1) is provided with an opening (6) having a bottomed cylindrical shape and provided with an internal thread on the upper side, and an outlet for discharging drainage provided on a side surface of the trap body (1). (4) and a water channel (3) provided at the outlet (4).
And a water sealing wall (2a) for forming a water sealing part (2) integrated therewith. The flange member (7) is a tubular member provided with a flange piece (9) in a side direction, and has a drain port (8) inside the tubular shape and an opening of the trap body (1) on the outer peripheral portion. It comprises a male screw screwed with (6). The deodorizing cylinder (10) is a substantially cylindrical member that is opened up and down, and the upper side is water-tightly and detachably attached to the flange member (7), and the lower side is disposed in the water sealing section (2). To form a seal. In the drain trap of the first embodiment, as another member, a packing (P) having a substantially U-shaped cross section for watertight connection between the trap body (1) and the flange member (7) is provided. Consisting of

The drain trap constructed as described above is attached to an opening provided in a waterproof pan or the like as follows. First, the opening (6) of the trap body (1) is arranged at the attachment opening, and then the flange member (7) is arranged on the trap body (1) via the packing (P) from above. Further, the male screw of the flange member (7) is screwed into the female screw of the opening (6) of the trap body (1) to thereby form the trap body (1).
Is attached to the opening. Further, the deodorizing cylinder (10) is attached to the flange member (7), and the construction of the drain trap is completed.

When drain water flows through the drain trap constructed as described above, as shown in FIG. 1, a water sealing portion (2) having an upper edge at the upper end of a water sealing wall (2a) in the trap body (1). Is formed, it is possible to reliably prevent the backflow of off-flavors and pests from sewage and the like. Further, when cleaning the drain trap, the inside of the trap body (1) is not divided into two parts by the side wall of the water sealing portion (2), so that there is no narrow portion in the trap body (1). Therefore, cleaning can be easily performed by attaching and detaching the deodorizing cylinder (10). In particular, in the first embodiment, as shown in FIG. 3, since the drain trap forms a concentric circle centered on the drain port (8), the distance of the inner surface of the side wall of the trap body (1) is different in any direction. In other words, it is not difficult to clean in a specific direction. Further, since the water discharge wall (2a) is provided at the discharge port (4), excess drainage is discharged from the discharge port (4), so that water does not collect except at the water sealing section (2).

Next, a second embodiment of the present invention will be described with reference to the drawings. The second embodiment of the present invention shown in FIGS. 4 to 6 is constituted by the following members such as a trap main body (1), a flange member (7), and an odor preventing cylinder (10). The trap body (1) is formed so as to extend a bottom wall (3a) in a lateral direction from an upper end of the water sealing portion (2) having a bottomed cylindrical shape, and an upper end of the water sealing portion (2). A water passage (3) having an opening (6) provided with a female screw, a discharge port (4) for discharging drainage provided on a side surface of the trap body (1), and a water sealing section (2). From the upper end, i.e., the lower end of the water passage (3), toward the lower end of the discharge port (4). The flange member (7), the deodorizing cylinder (10), and the packing (P) are configured in the same manner as the respective members used in the first embodiment described in the above paragraph 0014.

The drain trap constructed as described above is attached to an attachment port provided in a waterproof pan or the like in the same manner as in the first embodiment described in paragraph 0015.

When drain water flows into the drain trap constructed as described above, water is formed with the upper edge of the water sealing portion (2) in the trap body (1) as an upper edge, so that water from sewage or the like is formed. It is possible to reliably prevent the backflow of an unpleasant odor or pests. Further, when cleaning the drain trap, the inside of the trap body (1) is not divided into two parts by the side wall of the water sealing portion (2), so that there is no narrow portion in the trap body (1). Therefore, cleaning can be easily performed by attaching and detaching the deodorizing cylinder (10). In particular, in the second embodiment, as shown in FIG.
Since the concentric circle centering on the drain port (8) is formed, the distance between the inner surfaces of the side walls of the trap body (1) is equal in any direction, and it is not difficult to clean the trap body in a specific direction. In addition, since the height of the bottom wall (3a) of the water passage (3) is set at the same position as the upper end of the water sealing section (2) or above,
The drainage of the water channel (3) is discharged from the outlet (4),
Since water returns to the water sealing section (2), water does not accumulate in places other than the water sealing section (2). Furthermore, in the second embodiment, it was confirmed that the drainage performance was improved as compared with the conventional drain trap described in paragraphs 0003 to 0004. This is because, in the conventional drain trap, the drain water overflowing the upper end of the water sealing portion (2) falls for a time immediately below and then drains along the water passage (3). There are two types of flow, namely, A) a flow of drainage falling from the water sealing portion (2) and B) a flow of water flowing toward the discharge port (4), and the two types disturb each other. In the second embodiment, although the drainage is not efficiently performed, the flow of the drainage in the waterway (3) is not as large as the conventional example in the vertical cross-sectional area of the waterway (3). Since only the flow of water flowing toward the discharge port (4) of B) is present and the flow of drainage falling from the water sealing section (2) of A) does not occur, the drainage flowing through the water passage (3) does not occur. Flow is unified to only the flow going to the outlet (4),
This is because the efficiency of drainage has improved. The provision of the inclined portion (4a) in the discharge port (4) also has the effect of stabilizing the flow in the drainage, and improves the efficiency of drainage.

Although the embodiment of the present invention is as described above, the present invention is not limited to the above-described embodiment, and various changes can be made without changing the gist of the invention. For example, in the first embodiment described above, the trap body (1) is shaped substantially like a cylinder. However, as in the embodiment shown in FIG. 7, the water outlet wall (2a) is provided at the outlet (4). ) Can be formed while the trap body (1) is provided with a step. By making the outer shape the same as that of a conventionally used drain trap, a highly versatile product can be used, for example, an optional member for a cold-resistant region attached to the outside of the trap body (1) can be used as it is. Can be provided.

Further, as shown in FIG. 8, a branch pipe portion for allowing drainage to flow from another drainage device to the side surface of the trap body (1) or the side surface of the water sealing portion (2) as shown in FIG. (5) is provided, and an outlet (4) for another drainage device is provided in the branch pipe (5).
The trap function can also be added to other drainage equipment not having the trap function by connecting.

[0022]

Since the present invention is configured as described above, it has the following excellent effects. 1) In the drain trap of the present invention, a water sealing wall for forming a water seal is provided at the outlet, or the bottom wall of the water passage is located at the same or upper position as the upper end of the water sealing section, thereby sealing the water. Water will not collect in places other than the part, and it will be easy to put your hands inside the trap body during cleaning, or you can easily put your hands on the bottom of the water passage, improving the cleanability,
Sanitary drain traps can be maintained. In particular, with respect to the cleanability, a higher effect is obtained when the water sealing portion and the water passage of the drain trap form a concentric circle centered on the drain port. 2) In the drain trap of the present invention, by setting the bottom wall of the water passage to be the same as or above the upper end of the water sealing portion, the direction of the drain water flowing through the water passage is stabilized, and the drainage performance can be improved. . 3) By providing an inclination from the upper end of the water sealing portion to the lower end of the outlet, the drainage overflowing the water sealing portion has a shape that can easily flow from the outlet to the sewage side stably. 4) By providing a branch pipe in the water sealing portion to allow drainage to flow into another drainage device, a trapping function can be added to a drainage device having no trapping function.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing a state in which a first embodiment of the present invention is constructed.

FIG. 2 is a partially cutaway perspective view showing a member configuration of the first embodiment of the present invention.

FIG. 3 is a plan view of the first embodiment of the present invention.

FIG. 4 is a cross-sectional view showing a state in which a second embodiment of the present invention is applied.

FIG. 5 is a partially cutaway perspective view showing a member configuration of a second embodiment of the present invention.

FIG. 6 is a plan view of a second embodiment of the present invention.

FIG. 7 is a sectional view of an embodiment of the present invention in which a step is provided in the external shape.

FIG. 8 is a cross-sectional view showing a construction state of the first embodiment of the present invention provided with a branch pipe portion.

FIG. 9 is a cross-sectional view showing a state in which a branch pipe portion is provided in the second embodiment of the present invention.

FIG. 10 is a sectional view showing a conventional drain trap.

FIG. 11 is a cross-sectional view showing a conventional drain trap with a discharge port at a high position.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Trap main body 2 Water sealing part 2a Water sealing wall 3 Water passage 3a Bottom wall 4 Discharge port 4a Inclined part 5 Branch pipe part 6 Opening part 7 Flange member 8 Drain port 9 Flange piece 10 Odor prevention cylinder D Extra drain pool P Packing W Sealed edge

Claims (5)

[Claims] 1. A drain port (8) into which waste water flows, a water sealing part (2) for storing the waste water to form a water seal, and a water passage (3) through which the waste water overflowing the water sealing part (2) flows. And an outlet (4) for discharging the wastewater flowing through the waterway (3) to sewage, etc.
A drain trap provided with a water sealing wall (2a) for forming a water sealing portion (2) at the discharge port (4). 2. A drain port (8) into which waste water flows, a water sealing part (2) for storing the waste water to form a water seal, and a water passage (3) through which the waste water overflowing the water sealing part (2) flows. And an outlet (4) for discharging the wastewater flowing through the waterway (3) to sewage, etc.
Wherein the bottom wall (3a) of the water passage (3) is at the same height as or higher than the upper end of the water sealing portion (2). 3. The drain trap according to claim 1 or 2, wherein the water sealing section (2) and the water passage (3)
A drain trap which forms a concentric circle centered on a drain port (8) in plan view. 4. The drain trap according to claim 1, wherein an inclination is provided from an upper end of the water sealing portion (2) to a lower end of the discharge port (4). . 5. The drain trap according to claim 1, wherein the water sealing section (2) is provided with a branch pipe section (5) for inflowing drainage from another drainage device. A drain trap.