JP2003034962A - Drain trap - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a drain trap in which a watertight member of a deodorizing cylinder is arranged in a seal water part and prevented from deteriorating due to seal water in the seal water part. SOLUTION: The drain trap is composed of a trap body, a flange member and the deodorizing cylinder which is a cylindrical body opened in upper and lower parts and in which a mounting part is provided on an upper end side; and the mounting part is constituted in such a manner that an annular part, the watertight member and a protrusion are arranged from above in turn, so that the watertight member can be made hard to submerge in the seal water part.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drain trap attached to a floor pan of a bathroom, a washing machine or the like.

[0002]

2. Description of the Related Art Conventionally, various devices such as bathtubs, washing machines, etc., or floor pans on which they are placed, which generate drainage when used (hereinafter, such devices are referred to as "drainage devices") are A drainage device called a drainage trap shown in FIGS. 12 and 13 is provided in order to discharge the drainage generated in the drainage device to sewage and to prevent the backflow of odors and pests from the sewage side. There is. The conventional drain trap will be described below.

The drain trap shown in FIG. 12 includes a trap body, a flange member, a deodorizing cylinder, etc., described below.
It is composed of each member. The trap body is provided on an outer wall portion that forms a flow path for drainage, a water sealing portion that is provided in the drainage water channel for collecting waste water, and discharges overflow water from the water sealing portion to the sewage side. And an opening provided above the outer wall portion and provided with a female screw portion. The flange member includes a tubular portion provided with a male screw portion that is screwed with a female screw portion provided in the opening of the trap body, a drain port provided inside the tubular portion, and an upper end side of the tubular portion. A flange portion projecting outwardly to the outside, a plurality of protrusions provided along the circumference at a height position approximately in the middle of the drainage port, and a circumference from the lower end of the tubular portion further below the protrusion. An annular contact surface portion provided so as to project toward the side, and a connecting portion composed of, and when the tubular portion of the flange member is connected to the opening,
The drain trap is attached and fixed by sandwiching the attachment hole provided in the drainage device such as a waterproof pan between the flange portion and the outer wall portion around the opening of the trap body. The deodorant cylinder is a tubular body that opens vertically, and the upper end side is an annular portion that projects from the upper end side surface in the outer circumferential direction, and a notch portion that is provided at the peripheral edge of the annular portion and through which the protrusion of the connecting portion can be inserted. An inclined portion formed by providing an inclination along the outer circumference of the annular portion with the cutout portion as a starting point on the upper surface side of the annular portion, and a lower surface side of the annular portion, which is provided in the inner circumferential direction than the cutout portion. A watertight member made of an annular soft material,
And a mounting portion that is mounted in a watertight manner on the drain port of the flange member, and the lower end side is arranged in the water sealing portion of the trap body.

The drain trap constructed as described above is constructed as follows. First, the periphery of the opening of the trap body is brought into contact with the attachment hole of the drainage device through a watertight member such as packing, and the male screw of the flange member is screwed into the female screw of the opening of the trap body to trap the trap body. To the drainage equipment. Furthermore, as shown in FIG. 14, the protrusion of the flange member is aligned with the notch of the deodorant cylinder, and then the protrusion of the drainage port is inserted as shown in FIG. Furthermore,
As shown in FIG. 16, when the deodorant cylinder is rotated, the vertical width of the inclined portion immediately below the protruding portion increases, and the pressing force against the contact surface of the watertight member increases in proportion to the increase in the vertical width of the inclined portion. Finally, the deodorant cylinder is watertightly attached and fixed to the trap body via the flange member.

[0005]

As described in paragraphs 0003 and 0004, the drain trap is provided with a water seal part for always storing drainage in a part of the drainage channel. By collecting the drainage in this sealing part (hereinafter, the drainage collected in this sealing part is referred to as "sealing"), odors and pests are prevented from flowing back indoors from the sewer side. The deodorant / insect repellent performance of the water sealing part is the width from the opening at the upper end of the water sealing part to the opening at the lower end (the width of the portion indicated by H in FIG. 12, and this width is hereinafter referred to as "sealing depth"). The higher the value, the higher the value. For example, in the Japanese Industrial Standard (JIS standard),
In order to secure the basic performance of the drainage trap, the sealing depth is set to 50 mm or more, and the dimensions of the drainage trap are often designed based on the height of this sealing depth.

The portion indicated by h'in FIG. 12 also forms part of the drainage flow path. In the case of the drain trap, a certain width is also required in the drainage channel in order to secure drainage performance and to discharge relatively large dust mixed in the drainage. In the case of the Japanese Industrial Standards described above, in order to secure the basic performance of the drain trap, the drainage channel of the drainage trap is required to have a width that allows spheres having a diameter of 10 mm or more to pass through.

In recent years, with the increase in high-rise buildings, there is a tendency to secure a large number of units in an apartment house such as an apartment by reducing the height of each floor as much as possible and increasing the number of floors accordingly. However, narrowing the height of the living space makes the life of the residents uncomfortable, so the space for drainage piping under the floor is narrowed and the height of each floor is narrowed. A structure called a pipe is often used. Due to this low-floor piping, it is necessary to reduce the height width of the drain trap as well, but the following problems occur.

In order to achieve low floor piping, it is necessary to make the height width of the drain trap as narrow as possible. However, for the reason described in paragraph 0005 or paragraph 0006, the water sealing portion of H shown in FIG. The height width and the height width of the drainage flow path indicated by h'cannot be made narrower than a certain degree. For this reason, if the height width of the drain trap is narrowed, the lower ends of the male screw portion and the female screw portion are below the water level of the sealing water as shown in FIG. The watertight member, which is arranged at almost the same height as the lower end of the screw portion, is constantly immersed in the sealing water. Sealing water is wastewater, and in many cases, wastewater contains chemical components such as detergents and surfactants, or pollutants such as components that deteriorate a watertight member made of a soft material such as rubber. If the structure in which the watertight member is constantly immersed in the sealing water is adopted, the performance of the watertight member is deteriorated, the watertight performance is lost, and the function of the drain trap is impaired.

Further, in the case of the drain trap shown in FIG. 12, when the thickness of the peripheral edge of the attachment hole of the drainage device changes depending on the difference of the drainage device to be attached, the height of the drainage channel shown by h'in FIG. The width changes. For example, when trying to attach two types of waterproof pans with the same thickness at the periphery of the attachment hole to each other by about 3 mm while attaching drain traps of the same size in compliance with Japanese Industrial Standards: ・ Drain traps attached to thin waterproof pans If the space between h'parts is 10 mm, the space between h'parts of the drain trap attached to the thick waterproof pan is 1
It becomes 3 mm, and about 3 mm is wasted from the viewpoint of low floor piping. -If the distance between the h'parts of the drain trap attached to the thick waterproof pan is 10 mm, the interval between the h'parts of the drain trap attached to the thin waterproof pan will be 7 mm, which is a nonconforming product.

In order to avoid the problem of the height width of the h'portion, there has been devised a drain trap in which a deodorant cylinder is attached to the opening of the trap body as shown in FIGS. With the drain trap having such a structure, the height width of the h'portion can be set to a constant height width regardless of the thickness of the periphery of the attachment hole of the drainage device, which is suitable for low floor piping. It can be a trap.

However, in the drain trap having the above structure, the projection of the connecting portion provided in the opening of the drain trap is arranged further below the lower end of the flange member, as is apparent from the drawings. Become. Due to the narrow overall height of the drain trap for low-floor piping, the watertight member that is located below the protrusion is, in most cases, located below the top of the water seal. As described in paragraph 0008, there arises a problem that the watertight member is immersed in the sealing water. The present invention has been invented to solve the above-mentioned problems, in which the watertight member is immersed in the sealing water while securing the sealing water depth and the height width of the drainage channel as needed. It is intended to provide a drain trap that can prevent deterioration.

[0012]

A drain trap according to claim 1, wherein an outer wall portion (1) forming a flow passage for drainage and a sealing portion (2) provided in the drainage passage for collecting drainage. , Overflow water from the sealing unit (2) is discharged to the sewage side,
Trap body (5) consisting of an outlet (3) provided in the outer wall (1) and an opening (4) provided above the outer wall (1)
And a drain portion (6) provided inside, and a tubular portion (7) connected to the opening portion (4) of the trap body (5), and an outward direction toward the upper end side of the tubular portion (7). At the periphery of the opening (4) of the trap body (5) and the flange (8) when the tubular portion (7) is connected to the opening (4). A flange member (9) for sandwiching an attachment hole provided in the drainage device with the upper surface of the outer wall portion (1) to attach and fix the drainage trap to the drainage device, and a tubular body opened up and down, Provided with a mounting portion (10) on the upper end side,
Further, in a drain trap comprising a deodorant cylinder (11) whose lower end side is arranged in the water seal part (2) to form water seal, a mounting part (10) of the deodorant cylinder (11) is attached to the deodorant cylinder. An annular portion (1) protruding from the upper end of (11) to the outer peripheral side.
2) and a position below the annular portion (12),
Protrusions (13) provided at a plurality of locations on the side surface of the tubular portion (7)
And a protrusion (1) at the opening (4) of the trap body (5) or the drain outlet (6) of the flange member (9).
3) through which the notch (14) for passing and the deodorant cylinder (1
The connection part (16) consisting of the inclined part (15) fitted to the annular part (12) and the projection part (13) of 1) is provided, and the deodorant cylinder (11) and the drainage of the flange member (9) are provided. A water-tight member (17) made of a soft material for ensuring water-tightness is arranged between the mouth (6) and the opening (4) of the trap body (5).

The drain trap according to claim 2 is the paragraph 0.
The water-tight member (1
7) is disposed between the lower surface of the annular portion (12) and the upper surface of the connection portion (16) of the deodorant cylinder (11).

The drain trap according to claim 3 is the paragraph 0.
The water-tight member (1
7) is arranged so as to project from the annular portion (12) of the deodorant cylinder (11) in the lateral direction, and its outer edge contacts the inner peripheral surface of the drainage port (6) of the flange member (9). It is a drain trap characterized by being configured in.

The drain trap according to claim 4 is the paragraph 0.
In the drain trap according to any one of paragraphs 007 to 0009, the connection part (16) of the deodorant cylinder (11), the opening part (4) of the trap body (5), or the drain port of the flange member (9). A drain trap in which any one of (6) is integrally provided with a watertight member (17) by insert molding.

[0016]

BEST MODE FOR CARRYING OUT THE INVENTION The first embodiment of the present invention will be described below.
A description will be given with reference to the drawings. The first embodiment of the present invention comprises a trap body (5), a flange member (9), and a deodorant cylinder (11) shown below, which are shown in FIGS. The trap body (5) includes an outer wall portion (1) forming a drainage channel, a water sealing section (2) provided in the drainage channel for collecting wastewater, and overflow water from the water sealing section (2). Which comprises a discharge port (3) provided on the outer wall (1) and an opening (4) provided above the outer wall (1). It comprises a screw part (18). The flange member (9) is provided with a drainage port (6) inside and a male screw part (19) screwed to the female screw part (18) of the opening (4) of the trap body (5) on the outer peripheral surface. Provided tubular portion (7), the tubular portion (7)
(8) protruding outward from the upper end of the drain, and an annular contact surface (20) protruding inward from the lower end of the drainage port (6), the corresponding contact surface (2).
0) a plurality of notches (14) provided on the inner peripheral edge, and an inclined portion (15) provided at the lower end side of the contact surface portion (20) with an inclination along the outer periphery starting from the notches (14) It comprises a configured connection (16). The deodorant cylinder (11) is a tubular body having an opening at the top and bottom, the lower end of which is arranged in the water sealing part (2) during construction, and the annular shape is projected to the outer peripheral side from the upper end of the tubular body at the upper end side. The portion (12), a position below the annular portion (12), the protrusions (13) provided at a plurality of positions on the side surface of the tubular portion (7), and the insert molding below on the lower surface of the annular portion (12) And an attachment portion (10) composed of an annular water-tight member (17). In addition, insert molding means that after metal or cloth is loaded in the mold in advance, resin is injected and the member is wrapped with molten resin to solidify,
This is a molding method for producing an integrated composite part. In the case of the present embodiment, the water-tight member (17) is loaded in the mold in advance, and then the resin is injected to mold the water-tight deodorant cylinder (11). This is a method of integrally molding the member (17).

The above members are constructed as follows. First, the trap body (5) is brought into contact with the periphery of the attachment hole of the drainage device via packing or the like. Next, a male screw portion (1) provided on the tubular portion (7) of the flange member (9)
9) is screwed onto the female screw portion (18) of the opening (4) of the trap body (5), and the trap body (5) is attached and fixed to the attachment hole. Then, the deodorant cylinder (11) is inserted into the drainage port (6) so that the lower end is arranged in the water sealing part (2).
At this time, as shown in FIG. 3, the protrusion (13) of the deodorant cylinder (11) is passed through the notch (14) of the contact surface portion (20) of the flange member (9), and then, in FIG. As shown, the protrusion (13) is formed on the lower surface of the contact surface portion (20), the inclined portion (1
5) Lower to the position below. Further, when the deodorant cylinder (11) is rotated, the vertical width of the inclined portion (15) immediately above the protruding portion (13) increases and the vertical width of the inclined portion (15) increases as shown in FIG. Watertight members in proportion (17)
The pressing force of the upper surface of the abutting surface portion (20) is also strong, and the deodorizing cylinder (11) is finally fitted into the flange member (9).
Via, is attached and fixed to the trap body (5) in a watertight manner.

In the drain trap of the first embodiment, as shown in FIGS. 1 and 2, a watertight member (17) is arranged immediately below the annular portion (12) at the upper end of the deodorant cylinder (11), Further, a protrusion (13) is arranged below the watertight member (17). Regarding the structure of the attachment portion (10) of the deodorant cylinder (11) and the connection portion (16) of the flange member (9), in the conventional example, the flange portion (8) as shown in FIGS. As shown in FIG. 18, unevenness had to be formed on the inner peripheral surface of the opening (4) of the trap body (5) in this order from the top to the protrusion (13) and then to the contact surface (20). Therefore, in order to dispose the contact surface portion (20) on the drainage port (6), the height width of the protrusion (13) from the upper end of the drainage port (6) is provided above the contact surface portion (20). Mounting part (1
Although the height width of 0) is indispensable, in the first embodiment, since the protrusion (13) is arranged on the side surface of the deodorant cylinder (11), the drainage port (6) is provided above the contact surface (20). ) The height width of the mounting part (10) from the upper end of () is sufficient. For this reason,
Since the total height of the trap body (5) is lowered, in the structure of the conventional example, even if the watertight member is submerged in the sealing portion, the watertight member (17) is submerged in the present embodiment. Therefore, the deterioration of the material of the watertight member (17) can be prevented.

Next, a second embodiment of the present invention will be described with reference to the drawings. The second embodiment of the present invention is shown in FIGS.
As shown in FIG. 3, the trap body (5), the flange member (9), and the deodorant cylinder (11) are included. The trap body (5) has an outer wall portion (1) forming a flow path for drainage,
A water sealing section (2) provided in the drainage channel for collecting drainage,
An outlet (3) provided in the outer wall (1) for discharging overflow water from the water sealing part (2) to the sewer side, and an opening (4) provided above the outer wall (1), Furthermore, an internal thread portion (18) is provided on the inner peripheral surface of the opening portion (4), and an annular shape is formed in the opening portion (4) so as to project inward from the lower end of the female screw portion (18). Abutment surface portion (20), a plurality of notches (1
4), on the lower end side of the contact surface portion (20), the cutout portion (14)
The inclined portion (1
5), which comprises a connecting part (16). The flange member (9) is provided with a drainage port (6) inside and a male screw part (19) screwed to the female screw part (18) of the opening (4) of the trap body (5) on the outer peripheral surface. It is composed of a tubular portion (7) provided and a flange portion (8) projecting outward from the upper end side of the tubular portion (7). Deodorant cylinder (11)
Is configured similarly to the same member of the first embodiment described in paragraph 0016.

The above members are constructed as follows. First, the trap body (5) is brought into contact with the periphery of the attachment hole of the drainage device via packing or the like, and then the male screw portion (19) provided on the tubular portion (7) of the flange member (9). )
The internal thread (1) of the opening (4) of the trap body (5)
It is screwed to 8), and the trap body (5) is attached and fixed to the attachment hole. Then, the deodorant cylinder (11) is inserted into the drainage port (6) so that the lower end is arranged in the water sealing part (2).
At this time, the protrusion (13) of the deodorant cylinder (11) is passed through the notch (14) of the contact surface (20) of the trap body (5), and the protrusion (13) is contacted (20). ) Bottom surface,
Lower to a position below the ramp (15). Further, when the deodorant cylinder (11) is rotated, the width of the sloped portion (15) immediately above the protrusion (13) increases, and the watertight member (17) increases in proportion to the increase of the width of the sloped portion (15). Abutment surface (2
0) The pressing force of the upper surface is also strong, and the deodorizing cylinder (11) is finally fixed to the trap body (5) in a watertight manner via the flange member (9).

The drain trap of this second embodiment is shown in FIG.
7, the structure is such that the trap body (5) and the deodorant cylinder (11) are connected like the conventional example of FIG. 18, but as shown in FIG. 6 etc., the female screw of the opening (4) Since the contact surface portion (20) can be arranged at the lower end of the portion (18), the height of the protrusion (13) and the mounting portion (10) from the opening (4) is higher than that of the drain trap of FIGS. 17 and 18. The contact surface portion (20) can be raised by the width, and as a result, a drain trap in which the watertight member (17) is not submerged in the water sealing portion (2) as shown in FIG.

Next, a third embodiment of the present invention will be described with reference to the drawings. The third embodiment of the present invention is composed of the trap body (5), the flange member (9), and the deodorant cylinder (11) described below, which are shown in FIGS. 8 and 9. The trap body (5) includes an outer wall portion (1) forming a drainage channel, a water sealing section (2) provided in the drainage channel for collecting wastewater, and overflow water from the water sealing section (2). Which comprises a discharge port (3) provided on the outer wall (1) and an opening (4) provided above the outer wall (1). It comprises a screw part (18). The flange member (9) has a drain port (6) inside.
And a cylindrical portion (7) provided with a male screw portion (19) screwed to the female screw portion (18) of the opening of the trap body (5) on the outer peripheral surface of the tubular body (7). A flange portion (8) protruding outward toward the upper end side, and a drainage port (6)
An annular contact surface portion (20) projecting from the lower end of the contact surface toward the inner circumferential direction, a plurality of notches (14) provided on the inner peripheral edge of the contact surface portion (20), on the lower end side of the contact surface portion (20). A connecting portion (16) including an inclined portion (15) which is inclined from the cutout portion (14) along the outer circumference. The deodorant cylinder (11) is a tubular body having an opening at the top and bottom, the lower end of which is arranged in the water sealing part (2) during construction, and the annular shape is projected to the outer peripheral side from the upper end of the tubular body at the upper end side. Department (1
2) a position below the annular portion (12), a plurality of protrusions (13) provided on the side surface of the tubular portion (7), and upward from the side surface of the annular portion (12) on the outer peripheral side. An attachment part (10) comprising an annular watertight member (17) provided by insert molding, having a fin part (21) inclined toward
It is composed of

The above members are constructed as follows. First, the trap body (5) is brought into contact with the periphery of the attachment hole of the drainage device via packing or the like, and then the male screw portion (19) provided on the tubular portion (7) of the flange member (9). )
The internal thread (1) of the opening (4) of the trap body (5)
It is screwed to 8), and the trap body (5) is attached and fixed to the attachment hole. Then, the deodorant cylinder (11) is inserted into the drainage port (6) so that the lower end is arranged in the water sealing part (2).
At this time, the protrusion (13) of the deodorant cylinder (11) is passed through the notch (14) of the contact surface (20) of the flange member (9), and the protrusion (13) is contacted (20). ) Bottom surface,
It is attached at a position below the inclined portion (15). Furthermore,
When the deodorant cylinder (11) is rotated, the width of the sloped portion (15) immediately above the protrusion (13) increases, and the width of the sloped portion (15) increases in proportion to the contact with the watertight member (17). Face part (20)
The pressure on the upper surface also becomes strong, and finally the deodorant cylinder (1
1) via the flange member (9), the trap body (5)
It is watertightly attached and fixed to.

In the drain trap of the third embodiment, as shown in FIGS. 8 and 9, the watertight member (17) provided on the side surface of the annular portion (12) of the deodorant cylinder (11) is replaced by the flange member ( 9) is in contact with the inner peripheral surface of the tubular portion (7). In the conventional example, the inner peripheral surface of the tubular portion (7) of the flange member (9) is
Since the protrusion was indispensable on the inner peripheral surface of the tubular portion, it was impossible to bring the inner peripheral surface of the tubular portion and the watertight member into contact with each other in a watertight manner to stop the water. In the embodiment, since it is not necessary to provide the protrusion (13) on the inner peripheral surface of the tubular portion (7), as can be seen from FIG. 8, the inner peripheral surface of the tubular portion (7) and the watertight member (17). It is possible to stop the water by contacting and. Since the contact position between the watertight member (17) and the inner peripheral surface of the tubular portion (7) can be freely set up to the upper end of the tubular portion (7), the watertight member (17) is placed inside the water sealing portion (2). It can be a drain trap that will not be submerged.

Next, a fourth embodiment of the present invention will be described with reference to the drawings. The drain trap of the fourth embodiment of the present invention is composed of a trap body (5), a flange member (9), and a deodorant tube (11) shown below shown in FIGS. 10 and 11. The trap body (5) includes an outer wall portion (1) forming a drainage channel, a water sealing section (2) provided in the drainage channel for collecting wastewater, and overflow water from the water sealing section (2). Which comprises a discharge port (3) provided on the outer wall (1) and an opening (4) provided above the outer wall (1). An annular contact surface portion (20) provided with a screw portion (18) protruding inward from the lower end of the female screw portion (18), and a plurality of notches provided on the inner peripheral edge of the corresponding contact surface portion (20). Part (14),
On the lower end side of the contact surface portion (20), there is provided a connecting portion (16) composed of an inclined portion (15) which is inclined along the outer circumference from the cutout portion (14) as a starting point, and further, An annular watertight member (17) provided by insert molding is provided on the upper surface of the contact surface portion (20). Flange member (9)
Is a tubular part having a drainage port (6) inside and a male screw part (19) screwed to the female screw part (18) of the opening (4) of the trap body (5) on the outer peripheral surface. (7) and a flange portion (8) protruding outward from the upper end of the tubular portion (7). The deodorant cylinder (11) is a tubular body having an opening at the top and bottom, the lower end of which is arranged in the water sealing part (2) during construction, and the annular shape is projected to the outer peripheral side from the upper end of the tubular body at the upper end side. The part (12) and the protruding part (13) provided at a plurality of positions on the side surface of the tubular part (7) below the annular part (12).

The drain trap of the fourth embodiment is constructed as follows. First, the trap body (5) is brought into contact with the periphery of the attachment hole of the drainage device via packing or the like, and then the male screw portion (19) provided on the tubular portion (7) of the flange member (9). ) Is screwed into the female screw portion (18) of the opening (4) of the trap body (5), and the trap body (5) is attached and fixed to the attachment hole. Then, the deodorant cylinder (11) is inserted into the drainage port (6) so that the lower end is arranged in the water sealing part (2). At this time, the protrusion (13) of the deodorant cylinder (11)
Notch portion (1) of the contact surface portion (20) of the flange member (9)
4), and the protrusions (13) have contact surfaces (20).
It is attached to the lower surface of the, below the inclined portion (15). By this operation, the watertight member (17) attached to the upper surface of the trap body (5) comes into contact with the lower surface of the annular portion (12) of the deodorant cylinder (11). Further deodorant cylinder (11)
When is rotated, the inclined portion (1
5) has an increased width, and in proportion to an increase in the width of the inclined portion (15), the pressing of the watertight member (17) and the lower surface of the annular portion (12) becomes firm and fits together, and finally, Deodorant cylinder (11)
Are watertightly attached and fixed to the trap body (5).

In the drainage trap of the fourth embodiment, as shown in FIGS. 10 and 11, a watertight member is provided by insert molding on the upper surface side of the trap body (5). With this configuration, the contact surface of the watertight member (17) with the contact surface portion (20) can be located at the uppermost position of the watertight member (17). As a result, the contact surface of the watertight member (17) is less likely to be soaked in the wastewater, and the water droplets of the wastewater adhering to the contact surface are also less likely to drop and adhere.
It is possible to prevent the deterioration of 7), and it is possible to maintain good water stopping performance.

[0028]

Since the present invention is constructed as described above,
It has the following excellent effects. 1) In the present invention according to claim 1, since the trap body or the flange member is provided with an abutting surface, and the deodorant cylinder is provided with an annular portion and a protruding portion, respectively, it is watertight at a position higher than a conventional drain trap. The members can be arranged. Thereby, when the total height of the drain trap is narrowed for low-floor piping, even if the watertight member is submerged in the water seal portion if it is a conventional drain trap, since the watertight member is not submerged in the drain trap of the present invention, It is possible to provide a high-quality drain trap in which the watertight member is not deteriorated by the water in the sealed portion. 2) In the drain trap according to claim 2, the watertight member is arranged between the lower surface of the annular portion of the deodorant cylinder and the upper surface of the connection portion. Therefore, in the conventional example, the height width of the projection portion is required in addition to the height width of the mounting portion between the upper end of the drainage port and the contact surface portion. Between the upper end of the drainage port and the contact surface,
It suffices to secure only the height width of the mounting portion, and as a result, it is possible to provide a drain trap in which the watertight member is less likely to be submerged in the water sealing portion compared to the conventional example. 3) In the drain trap according to claim 3, the watertight member is arranged between the side surface of the annular portion of the deodorant cylinder and the inner peripheral surface of the drain port. Therefore, in the conventional example, the height width of the projection portion is required in addition to the height width of the mounting portion between the upper end of the drainage port and the contact surface portion. Since the watertight member may be arranged at any height position of the drainage port, it is possible to provide a drainage trap in which the watertight member is not submerged in the water sealing portion. 4) In the drain trap according to claim 4, the watertight member is integrally formed by insert molding with any one of the trap body, the flange member, and the deodorant cylinder, so that the watertight member is provided independently. As a result, the position of the watertight member does not shift during mounting, and the stability during mounting improves.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a state in which a first embodiment of the present invention has been applied.

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

FIG. 3 is a reference diagram showing a construction sequence of the first embodiment of the present invention.

FIG. 4 is a reference diagram showing a construction sequence of the first embodiment of the present invention.

FIG. 5 is a reference diagram showing a construction sequence of the first embodiment of the present invention.

FIG. 6 is a cross-sectional view showing a state in which a second embodiment of the present invention has been applied.

FIG. 7 is a partially cutaway perspective view showing a second embodiment of the present invention.

FIG. 8 is a cross-sectional view of a state in which a third embodiment of the present invention has been applied.

FIG. 9 is a partially cutaway perspective view showing a third embodiment.

FIG. 10 is a cross-sectional view of a state in which a fourth embodiment of the present invention has been applied.

FIG. 11 is a partially cutaway perspective view showing a fourth embodiment of the present invention.

FIG. 12 is a cross-sectional view showing a conventional drain trap.

FIG. 13 is a partially cutaway perspective view showing a conventional drain trap.

FIG. 14 is a partially cutaway perspective view showing a construction order of a conventional drain trap.

FIG. 15 is a partially cutaway perspective view showing a construction order of a conventional drain trap.

FIG. 16 is a partially cutaway perspective view showing a construction order of a conventional drain trap.

FIG. 17 is a cross-sectional view showing a state in which a conventional drain trap is installed.

FIG. 18 is a partially cutaway perspective view showing a conventional drain trap.

[Explanation of symbols]

1 outer wall 2 water seal 3 outlets 4 openings 5 Trap body 6 drainage outlet 7 Cylindrical part 8 Flange 9 Flange member 10 Mounting part 11 Deodorant cylinder 12 Annular part 13 Projection 14 Notch 15 Inclined part 16 Connection 17 Watertight member 18 Female thread part 19 Male thread 20 Contact surface 21 Fins

Claims (4)

[Claims] 1. An outer wall portion (1) forming a drainage channel, a water sealing section (2) provided in the drainage channel for collecting drainage, and overflow water from the water sealing section (2) being sewage. Discharge port (3) provided on the outer wall portion (1) for discharging to the side, the outer wall portion (1)
A tubular body (7) provided with a trap body (5) consisting of an opening (4) provided above and a drainage port (6) inside and connected to the opening (4) of the trap body (5). And a flange portion (8) projecting outwardly toward the upper end side of the tubular portion (7), the flange portion when the tubular portion (7) is connected to the opening portion (4). A flange for attaching and fixing the drain trap to the drain device by sandwiching the attachment hole provided in the drain device between the (8) and the upper surface of the outer wall portion (1) at the periphery of the opening (4) of the trap body (5). Material (9)
And a deodorant cylinder (11) that is a tubular body that opens up and down and that has an attachment portion (10) on the upper end side and that has a lower end side disposed inside the water sealing part (2) to form water sealing, In the drain trap composed of, the attachment part (10) of the deodorant cylinder (11) has an annular portion (12) protruding from the upper end of the deodorant cylinder (11) to the outer peripheral side, and the annular portion (12). And a flange member (9) formed on the side surface of the tubular portion (7) at a plurality of positions on the side surface of the tubular portion (7). Drains (6)
A notch (14) through which the protrusion (13) passes
And the annular portion (12) and the protruding portion (1) of the deodorant cylinder (11)
3) a slanted portion (15) fitted to the connecting portion (1)
6) and a soft material for ensuring watertightness between the deodorant cylinder (11) and the drainage port (6) of the flange member (9) or the opening (4) of the trap body (5). A drain trap, characterized in that a watertight member (17) consisting of is arranged. 2. The drain trap according to claim 1, wherein the watertight member (17) is the annular portion (1) of the deodorant cylinder (11).
2) A drain trap, which is arranged between the lower surface and the upper surface of the connecting portion (16). 3. The drain trap according to claim 1, wherein the watertight member (17) is the annular portion (1) of the deodorant cylinder (11).
The drain trap which is arranged so as to project from 2) in the lateral direction and whose outer edge is in contact with the inner peripheral surface of the drain port (6) of the flange member (9). 4. The drain trap according to any one of claims 1 to 3, wherein the connection portion (16) of the deodorant cylinder (11) or the opening portion (4) of the trap body (5),
Alternatively, a drain trap, characterized in that any one of the drain ports (6) of the flange member (9) is integrally provided with a watertight member (17) by insert molding.