JP2001241079A - Drainage trap and bathroom structure using drainage trap - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a drainage trap which has a draining device connected thereto via a branch pipe portion and does not generate back flow of drainage to the side of the draining device even if a large quantity of drainage is discharged into the drainage trap, and to provide a bathroom structure using the drainage trap. SOLUTION: The drainage trap for preventing intrusion of a foreign odor and noxious insects from a sewage and the like into a house, is constituted of a deodorizing cup portion (1) for storing drainage, a deodorizing cylinder (3), a branch pipe portion (4) arranged on a side surface of the deodorizing cup portion (1), a discharge port (5), and a back-flow preventive wall (6) arranged between the deodorizing cylinder (3) and the branch pipe portion (4). The bathroom structure includes a washing-place portion (P1) and a bathtub mounting portion (P2) having a bathtub (B) mounted thereon. The draining device is arranged on the side of the bathtub mounting portion (P2), and the drainage trap is arranged on the side of the washing-place portion (P1). Further, the draining device is connected to the drainage trap via the branch pipe portion (4).

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drain trap used for an indoor bathroom, a waterproof pan and the like, and a bathroom structure using the drain trap.

[0002]

2. Description of the Related Art Conventionally, devices that generate drainage by use (hereinafter referred to as "drainage devices"), such as indoor bathrooms, washing machines, and waterproof pans used therein, have been produced by using the devices. To treat wastewater to the sewage side,
Drainage equipment is used. There are various types of drainage equipment,
As shown in FIG. 7, there is a drainage device that simply connects a drainage device to a drainage pipe connected to a sewage side or the like, as in a drainage device called a drainage elbow. Equipped with a function to prevent odors and pests from going back inside the drainage device and entering indoors from the drainage device.
There is also a drainage device called a drainage trap. There are several types of drain traps. As shown in Fig. 7, wastewater is collected in a part of the drainage channel formed inside the trap, and odors and pests are collected from the sewage side of this part. Generally, a closed-type drain trap for preventing intrusion of water is used.

The above-described drainage elbow and drainage trap are often used as a single unit. However, as another method of use, as shown in FIG. 7, a drainage from a simple drainage device such as the drainage elbow described above is used. Is also known that flows into a drain trap via a branch pipe portion. By doing so, a trapping function can be added to a drainage device that does not have a trapping function, such as a drainage elbow. Therefore, there are various advantages such as a reduction in the number of members and an inexpensive provision of products.

[0004]

By the way, the flow path of the drain water flowing in the drain trap as shown in FIG. 7 has a larger area than a simple drain device such as a drain elbow also shown in FIG. Since the water flows in a narrow place while changing the direction many times, the drainage performance deteriorates as much as the flow path of the drainage becomes complicated. For this reason, if a large amount of drainage flows from the drainage outlet of the drainage trap and the drainage cannot be discharged from the drainage at a sufficient speed, the excess wastewater is urged by the drainage force at the time of drainage, and from the deodorizing bowl portion. There is a problem in that a large amount of water flows into the drainage device connected to the branch pipe portion and overflows into the drainage device connected to the drainage device, causing a phenomenon called backflow. As a method for preventing this, there is known a method of using a movable member such as a float or a hinge to arrange a check valve or the like on a branch pipe portion or the like that restricts the flow of drainage to only one direction. When such a check valve is used, the number of members and the assembly labor increase by the check valve, and it becomes impossible to provide a product at low cost. In addition, while using the drainage system for a long time, the movable part is deteriorated and damaged, or dust adheres to it, and it cannot move, and the function of preventing backflow is lost or the valve is closed. There are also problems such as the inability to drain water. The present invention has been made in view of the above-mentioned problems, and a drain trap connected to a drainage device through a branch pipe portion and not using a check valve or the like by a movable member such as a float or hinge is provided. The present invention provides a drain trap that does not cause backflow on the drain device side connected to the branch pipe even if a large amount of drain water is discharged, and a bathroom structure using such a drain trap.

[0005]

According to a first aspect of the present invention, there is provided a drain trap for preventing an odor or harmful insects from sewage or the like from entering a room. ), A tubular body which is opened up and down, drainage from a drain port (2) flows in from an upper end opening, and a lower end opening is arranged in the odor preventing bowl portion to form a water odor preventing portion. A pipe (3) and a branch pipe (4) arranged on the side of the deodorizing bowl (1) for allowing drainage from the outside to flow into the deodorizing bowl (1).
And an outlet (5) for discharging overflow water from the deodorant bowl (1) to the sewage side, and a deodorant cylinder (3) and a branch pipe (4).
And a backflow prevention wall (6) having a width equal to or greater than the width of the opening of the branch pipe portion (4) and rising from the bottom surface of the deodorization bowl portion (1). It is a drain trap characterized by being formed.

According to a second aspect of the present invention, there is provided a drain trap for preventing an odor and pests from sewage or the like from entering a room. A deodorizing tube (3), wherein drainage from a drainage port (2) flows in from an opening at an upper end, and an opening at a lower end is arranged in the deodorizing bowl portion to form a water sealing portion; A branch pipe section (4) disposed on the side of the deodorizing bowl section (1) for allowing drainage from the outside to flow into the deodorizing bowl section (1); and a deodorizing bowl section (1)
A discharge port (5) for discharging overflow water from the sewage to the sewage side, and between the deodorizing cylinder (3) and the branch pipe section (4);
The upper end thereof is characterized by comprising a backflow prevention wall (6) disposed at a position higher than the lower end of the branch pipe portion (4) and lower than the upper end of the branch pipe portion (4). Drain trap.

A drain trap according to a third aspect of the present invention is the drain trap described above, wherein the backflow preventing wall (6) is formed to be inclined downward toward the branch pipe portion (4). It is a trap.

A drain trap according to a fourth aspect of the present invention is the drain trap described above, wherein a rib piece (7) horizontally protruding inward is provided at a lower end of the deodorizing cylinder (3). Drain trap.

According to a fifth aspect of the present invention, in the drain trap described above, wherein the deodorizing tube (3) is provided with the rib pieces (7), the shape of the deodorizing tube (3) is substantially cylindrical. The drain trap is characterized in that the shape of the opening at the lower end formed by the rib pieces (7) is circular with a small diameter concentric with the circle of the deodorizing cylinder (3) in plan view.

According to a sixth aspect of the present invention, in the drain trap described above, wherein the deodorizing tube (3) is provided with the rib pieces (7), the shape of the deodorizing tube (3) is substantially cylindrical. A drain trap characterized in that the shape of the opening at the lower end formed by the rib pieces (7) is a regular polygonal shape inscribed in a circle of the deodorizing cylinder (3) in plan view.

[0011] drainage structure according to claim 7, washing place part and (P _1), bathtub mounting portion for mounting the tub and (P _2), the full structure with a waterproof pan made of, bathtub placed A drainage device is provided on the part (P ₂ ) side, the above-described drainage trap is provided on the washing part (P ₁ ) side, and a drainage device on the bathtub mounting part (P ₂ ) side and a washing part part (P ₁ ) A bathroom structure characterized by being connected to a drain trap on the side via a branch pipe (4).

[0012]

Embodiments of the present invention will be described below with reference to the drawings. The embodiment of the present invention shown in FIGS. 1 and 2 includes a trap body (8), a flange member (12), a deodorizing cylinder (3), and a drainage elbow (1) described below.
7) It is composed of other members and the like. The trap body (8) is a bottomed tubular odor-proof bowl (1) that opens upward.
Is provided so as to surround the opening of the deodorant bowl (1) (here, "provided to surround") means that overflow water from the opening of the deodorant bowl (1) leaks to the outside of the drain trap. And an external wall (9) that forms a drainage channel therein, and drains provided on the side surface of the external wall (9). A discharge port (5) for discharging the wastewater from the drain passage to the sewage side, and a branch pipe part (4) provided on the side surface of the deodorant bowl (1) and allowing drainage to flow into the deodorant bowl (1) will be described later. A position between the cylindrical body (15) of the deodorizing cylinder (3) and the side wall of the deodorizing bowl (1), the width of which is equal to or greater than the width of the opening of the branch pipe part (4), and the upper end of which is It is located between the upper end and the lower end of the branch pipe part (4) and rises from the bottom surface of the deodorizing bowl part (1), and is inclined downward toward the branch pipe part (4). A backflow prevention wall (6), an opening (10) provided with a female screw on the upper surface of the outer wall (9), and a mounting surface (11) that comes into contact with the waterproof pan when the drain trap is mounted on the waterproof pan. And Further, the flange member (12) is provided with a male screw on the outer peripheral side surface which is screwed with a female screw of the opening (10) of the trap body (8).
A cylindrical portion (13) forming a drainage port (2) therein, and a flange portion (14) provided on an outer peripheral upper edge of the cylindrical portion (13).
And consisting of The deodorizing cylinder (3) has a tubular body (15) formed of a tubular body opened vertically and a drain port of the flange member (12) provided on the outer periphery of the upper edge of the tubular body (15). An engaging portion (16) which is engaged with the (2) in a watertight manner, and a lower end of the deodorizing cylinder (3), which projects horizontally toward the inner peripheral side and has a shape of an opening in a plan view, and the deodorizing cylinder (3). And a rib piece (7) concentric with the circular shape and having a smaller diameter, and further, when engaged with the opening (10), the cylindrical body (15).
Is disposed in the odor preventing bowl portion (1) of the trap body (8) to form a water sealing portion. In addition, drainage elbow (17)
Is a drainage device connected to the branch pipe portion (4) of the drainage trap to flow drainage into the deodorizing bowl portion (1), and has an inlet (18) through which drainage flows, and an eye fitted into the inlet. A plate member (19), a connection pipe (20) for connecting the perforated plate member (19) and the bathtub (B), and a connection portion (21) for discharging drainage by connecting to the branch pipe portion (4). Be prepared. Further, as a drainage device to which the above-mentioned drain trap and drain elbow (17) are attached, a waterproof pan comprising a washing section (P ₁ ) and a bathtub placement section (P ₂ ) for placing the bathtub (B) is provided. A bathroom structure is provided.

When each member such as the drain trap configured as described above is attached to the waterproof pan of the bathroom structure as shown in FIG. 1, first, the branch pipe (4) of the trap body (8) is attached to the branch pipe (4).
The connection part (21) of the drain elbow (17) is connected. Next, the trap body (8) is inserted into the trap mounting hole (W ₁ ) provided in the waterproof pan on the washing area (P ₁ ) side, and the flange portion (14) of the flange member (12) and the trap body (8). And the mounting surface (11) is screwed so as to sandwich the periphery of the trap mounting hole (W ₁ ). Next, the engaging portion (16) of the deodorizing cylinder (3) is attached to the opening (10) of the flange member (12) such that the lower end of the cylindrical body (15) is disposed in the trap body (8). Engagement completes the installation of the drain trap. Then attaching a bath (B) bath mounting part mounting the _{(P 2)} draining the elbow attachment hole _{(W 2)} provided on the waterproof pan side elbow (17), drainage elbow (17) A perforated plate member (19) is attached to the inflow port (18), and the perforated plate member (19) and the bathtub (B) are connected by a connection pipe (20). The pipe member having an inclination set so that drainage of the trap can be discharged to the sewage side is connected to the pipe member on the sewage side, and the construction of the drainage trap is completed.

In the bathroom structure constructed as described above, when drainage is performed at the washing section (P ₁ ), the drainage passes through the drain port (2) of the drain trap and the inside of the deodorizing cylinder (3), and the deodorizing bowl is formed. It flows so as to expand the bottom surface of the part (1). Here, some of the drainage flows in the direction of the branch pipe (4), but before flowing into the branch pipe (4), the width is larger than the width of the opening of the branch pipe (4). The height collides with a backflow prevention wall (6) provided at a position higher than the lower end of the branch pipe portion (4) and lower than the upper end of the branch pipe portion (4), and the flow is blocked. Therefore, the amount of drainage flowing into the branch pipe portion (4) is drastically reduced as compared with the case where the backflow prevention wall (6) is not provided. In particular, in this embodiment, since the rib pieces (7) are also provided on the inner peripheral side of the deodorizing cylinder (3), the flow of drainage flowing through the deodorizing cylinder (3) is restricted. Drainage elbow (1
The backflow generated in the drainage equipment beyond the inflow port (18) of (7) occurs when the momentum of the drainage is strong.
By restricting the momentum of drainage by the action of (1), it is possible to adopt a configuration in which backflow to the drainage elbow (17) side is more unlikely to occur. By the action of these members, most of the drainage overflows the upper end of the wall of the deodorizing bowl (1), flows through the drainage flow path in the outer wall (9), and finally flows from the drain (5) to the sewage side. come to be discharged, the drainage elbow (17) waste water flowing into the side for almost no backflow occurs bath fitted with a drainage elbow (17) mounting portion (P ₂₎ side of the waterproof pan or tub (B) Disappears.

On the other hand, the bathtub (B) or the bathtub mounting portion (P
₂ ) When drainage flows from the waterproof pan on the side to the deodorizing bowl (1) via the drainage elbow (17), the drainage is branched to the branch pipe (4).
After flowing into the deodorizing bowl (1) from below, it collides with the backflow prevention wall (6) and spreads back and forth or upwards,
As a result, although the direction of the drainage can be changed, the drainage flows into the deodorizing bowl (1) as in the case without the backflow prevention wall (6), flows through the drainage channel, and is discharged from the outlet (5). You. Also, since the lower end of the branch pipe portion (4) is usually located slightly higher than the lower end of the deodorizing bowl portion (1), the height of the backflow prevention wall (6) is determined based on the respective lower ends. The part (1) side is located at a position higher than the branch pipe part (4) side, and the branch pipe part (4) side is naturally a backflow prevention wall ( 6) is less likely to be affected. In conclusion, it can be said that the drainage performance of the drainage elbow (17) is slightly reduced by the presence of the backflow prevention wall (6), but not so much as to be particularly problematic. In particular, as in the present embodiment, when the upper end of the backflow prevention wall (6) is located at a position lower than the upper end of the branch pipe (4), the deodorizing bowl (1) is connected to the branch pipe (4). ) Is almost blocked by the backflow prevention wall (6), whereas the drainage flow from the branch pipe section (4) to the discharge port (5) is blocked by the backflow prevention wall (6). It is relatively smooth because there are no parts. Further, in this embodiment, the backflow prevention wall (6) is provided to be inclined downward toward the branch pipe portion (4), so that the flow of drainage is further smoothed and the deterioration of drainage performance is mitigated. are doing.

Although the embodiment of the present invention is as described above, the present invention is not limited to the above embodiment, and various modifications can be made without changing the gist of the invention. For example,
In the above embodiment, the shape of the trap body (8) is
Although it is configured in a shape generally called a bowl-shaped trap as shown in FIGS. 1 and 2, a trap body (8) having a shape as shown in FIGS. 3 and 4 is used instead. May be. The drain trap having the shape shown in FIGS.
A drain trap having a shape generally called a running trap. The shape of the trap body (8) will be described. An opening (10) is provided at an upper portion of a casing, and a discharge port (5) is provided at a side surface. A wall rising from the bottom is provided between the section (10) and the discharge port (5) to form a deodorant bowl (1) below the opening (10), and the deodorant bowl (1) is discharged from the upper end thereof. An outer wall (9) is provided toward the outlet (5), and a drain passage is formed therein. Further, a branch pipe section (4) is provided on a side surface of the deodorizing bowl section (1) to allow drainage to flow into the deodorizing bowl section (1) from outside. Also,
The flange member (12), the deodorizing cylinder (3), the drainage elbow (17), and the bathroom structure to which these are attached are configured in the same manner as the respective members of the embodiment described in the above paragraph 0012. The drain trap configured as described above, by the same method as the embodiment described in paragraph 0013 above,
As shown in FIG. 3, it can be attached to a bathroom equipped with a waterproof pan provided with an attachment hole.
By the same operation as the drain trap of the embodiment described in No. 15, a function of preventing backflow on the drain elbow (17) side is provided.

In the above embodiment, as shown in FIG. 5, the shape of the rib piece (7) provided on the deodorizing cylinder (3) is changed from that of the substantially cylindrical deodorizing cylinder (3). ), The shape of the opening is the circular shape of the deodorant cylinder (3) in plan view;
Although it is concentric and has a circular shape with a smaller diameter, if necessary, as shown in FIG. 6, the shape of the deodorizing cylinder (3) is formed by a rib piece (7) with respect to a substantially cylindrical shape. The shape of the opening may be a regular polygon such as a square inscribed in the circle of the deodorant cylinder (3) in plan view. In such a shape, the rib pieces (7) do not exist at the apexes of the regular polygon, so that the drainage momentum is not much reduced as compared with the shape of the embodiment, but on the other hand, the drainage amount is improved. For,
The drainage from the discharge port (5) has a good drainage property, and an effective effect can be obtained by using it for a drainage trap in which backflow does not easily occur.

Further, in the above embodiment, the waterproof pan provided in the bathroom structure is integrally formed. However, the bath tub mounting part side and the washing place part side are formed separately, and both are integrated at the time of construction. It is good also as a structure.

【The invention's effect】

Since the present invention is configured as described above, the following excellent effects can be obtained. 1) In the present invention, when drainage is performed from the drainage port of the drainage trap, backflow can be prevented from occurring in a drainage device such as a drainage elbow connected to the branch pipe portion. 2) In the present invention, when the backflow prevention function is added, since there is no movable member such as a float or a hinge, the movable portion is deteriorated and damaged while the drainage device is used for a long time. Or, there is no problem that the dust or the like adheres to the movable body and the function of preventing the backflow is lost. 3) In the present invention, the effects of 1) and 2) can be obtained only by slightly changing the shape of the trap body without adding a new member or changing the manufacturing process. For this reason, it is possible to add a backflow prevention function to the drain trap without substantially increasing the cost of the product.

[Brief description of the drawings]

FIG. 1 is a sectional view showing an embodiment of the present invention.

FIG. 2 is a perspective view showing a member configuration of the embodiment of the present invention, in which a trap body is cut away.

FIG. 3 is a sectional view showing an embodiment of the present invention in which the trap body has a running trap shape.

FIG. 4 is a perspective view showing a member configuration of an embodiment of the present invention in which the trap body has a running trap shape, in which the trap body is notched.

FIG. 5 is a plan view of a deodorizing cylinder provided with rib pieces according to the present invention.

FIG. 6 is a plan view showing another embodiment of the deodorizing cylinder provided with the rib pieces according to the present invention.

FIG. 7 is a sectional view showing a conventional example.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Deodorizing bowl part 2 Drain port 3 Deodorizing cylinder 4 Branch pipe part 5 Outlet 6 Backflow prevention wall 7 Rib piece 8 Trap main body 9 Outer wall part 10 Opening 11 Mounting surface 12 Flange member 13 Tube part 14 Flange part 15 Tube part 16 engaging portion 17 drainage elbow 18 inlet 19 perforated plate member 20 connecting pipe 21 connecting portion B tub P ₁ washing place section P ₂ tub mounting portion W ₁ trap attachment hole W ₂ elbow attachment hole

Continued on front page F-term (reference) 2D032 GA05 2D061 CA02 CC13 DA01 DD08 DD14

Claims (7)

[Claims] 1. A drain trap for preventing an unpleasant odor or pests from sewage or the like from entering a room, comprising: a deodorant bowl (1) for storing drainage; and a tubular body opened vertically. Drainage from the drain port (2) flows in from the upper end opening, and the lower end opening is disposed in the deodorizing bowl portion to form a water sealing portion, and a side surface of the deodorizing bowl portion (1). A branch pipe part (4) for discharging drainage from the outside into the deodorizing bowl part (1), and a discharge port (5) for discharging overflow water from the deodorizing bowl part (1) to the sewer side, A backflow prevention wall (6) provided between the deodorizing cylinder (3) and the branch pipe part (4) and having a width equal to or greater than the width of the opening of the branch pipe part (4).
And a drain trap comprising: 2. A drain trap for preventing an odor and pests from sewage and the like from entering a room, comprising a deodorant bowl (1) for storing waste water, and a tubular body opened vertically. Drainage from the drain port (2) flows in from the upper end opening, and the lower end opening is disposed in the deodorizing bowl portion to form a water sealing portion, and a side surface of the deodorizing bowl portion (1). A branch pipe part (4) for discharging drainage from the outside into the deodorizing bowl part (1), and a discharge port (5) for discharging overflow water from the deodorizing bowl part (1) to the sewer side, The upper end provided between the deodorizing cylinder (3) and the branch pipe (4) is located at a position higher than the lower end of the branch pipe (4) and lower than the upper end of the branch pipe (4). And a backflow prevention wall (6). 3. The drainage trap according to claim 1 or 2, wherein the backflow prevention wall (6) is formed so as to be inclined downward toward the branch pipe part (4). trap. 4. The method according to claim 1, wherein:
The drain trap according to any one of claims 1 to 3, wherein a rib piece (7) projecting horizontally inward is provided at a lower end of the deodorizing cylinder (3). 5. The drain trap according to claim 4, wherein the shape of the deodorizing cylinder (3) is substantially cylindrical and the shape of the opening at the lower end formed by the rib pieces (7) is deodorized in a plan view. A drain trap having a circular shape concentric with the cylinder (3) and having a small diameter. 6. The drain trap according to claim 4, wherein the shape of the deodorizing cylinder (3) is substantially cylindrical, and the shape of the opening at the lower end formed by the rib pieces (7) is changed to a plan view deodorant. A drain trap having a regular polygonal shape inscribed in a circle of the cylinder (3). 7. In a bathroom structure provided with a waterproof pan comprising a washing section (P ₁ ) and a bath tub placement section (P ₂ ) on which a bath tub (B) is placed, a bath tub placement section (P ₂ ). A drainage device is provided on the side, and the drainage trap according to any one of claims 1 to 6 is provided on the washing area (P ₁ ) side,
Furthermore, a drainage device on the bathtub mounting part (P ₂ ) side and a washing area (P
₂ ) A bathroom structure wherein the drain trap on the side is connected via a branch pipe (4).