JP4344790B2 - Drain trap piping - Google Patents

Description

  The present invention relates to a drainage pipe that discharges wastewater generated when using a bathtub, sink, washstand, hand-washer near the toilet, etc. to the sewage side such as underfloor pipes. The present invention relates to a drain trap pipe that prevents intrusion.

  Conventionally, in drainage pipes that treat wastewater such as bathtubs, sinks, washstands, hand-washers near toilets, odors and pests from the sewage side are prevented from entering the indoor side in the middle of the flow path. For this reason, a method is known in which the trap part in which the sealed part is formed is arranged in the pipe.

  Among these well-known drain trap pipes, the drain trap pipe shown in FIG. 5 (Patent Document 1) and the drain trap pipe shown in FIG. 6 (Patent Document 2) are generally called traps. The drain trap pipe has a U-shape or S-shape, and the drainage is accumulated in the bent portion to form a sealed water, which causes odors and pests from the sewage side to be stored. Prevents entry into the inside.

  By the way, the wastewater that passes through the drainage trap pipe as described above is the water after use by the user of the drainage equipment, so it contains hair, scales, straw, leftovers, garbage, mud, detergent residue and other filth. In many cases, these substances accumulate on the inner wall of the pipe while the drainage equipment is used for a long period of time, which may block the drain trap pipe and eliminate this blockage. This was one of the issues to be solved regarding drain trap piping.

As a solution to the above-mentioned problems, a metal wire wound in a coil shape is inserted from the drainage port, and it collides with the clogged material at the blockage location to break it up. A high-pressure cleaning method is known in which a hose pipe having a stub is inserted, high-pressure water discharge is discharged from the hose pipe to the clogging material at the blockage site, and the blockage is eliminated.
However, when the can tool method or high-pressure washing method is performed by operating from the drain port, especially in drain trap pipes that do not provide for blockage of the pipe, the metal wire of the can tool method is connected from the drain port to the trap upstream pipe. Or high pressure cleaning hose pipes can be inserted, but metal wires and hose pipes cannot be bent in the complicated traps caused by bending or the arrangement of seal forming parts. Since the hose pipe cannot pass through, the can tool method and the high pressure washing method cannot be performed downstream of the trap downstream pipe portion. For this reason, with respect to the blockage of the pipe where the clogging material is deposited on the downstream side of the trap upstream pipe part, particularly the trap downstream pipe part, the blockage cannot be solved unless the drain trap pipe is disassembled and cleaned.

On the other hand, in the case of the conventional example shown in FIG. 5, the manual valve is opened and closed by applying an operation to the handle outside the drain trap pipe, and the can tool is positioned downstream of the trap downstream pipe portion from the drain port. Method or high pressure washing method. In the case of the conventional example shown in FIG. 6, by removing the screw from the drain trap pipe, the can tool method or the high-pressure washing method can be performed from the drain port to the downstream side of the trap downstream pipe portion.

JP-A-55-89551 (FIGS. 1 to 5) JP-A-55-89551 (FIGS. 6 to 8)

However, in both the conventional example of FIG. 5 and the conventional example of FIG. 6, the drainage pipe and the upstream of the trap are usually used in the drainage trap piping because of the production of members, transportability, and construction reasons. In many cases, a pipe portion or the like is formed as a separate member. In such a case, when the bypass pipe is adopted as the drain trap pipe as described above, the connection location is increased at least at the end portion on the upstream side of the bypass pipe compared to the normal drain trap pipe. End up. When the number of connection points is increased in this way, there is a problem that the number of points where there is a risk of water leakage increases, and the number of members and labor for connection increase, resulting in an increase in the unit price of the product.
The present invention has been devised in view of the above problems, and provides a drain trap pipe that solves the above problems.

  The present invention described in claim 1 includes a drainage device (1) having a drainage port (2) and an outflow port (3), and a tube provided on the downstream side of the outflow port (3) to bend and seal water. A trap section (4), a trap upstream pipe section (5) communicating the drain port (2) and the trap section (4), a trap downstream pipe section communicating the trap section (4) and the underfloor pipe, The bypass pipe (6) provided in the drainage device (1) communicates from the drain outlet (2) to the trap downstream pipe section and does not pass through the trap section (4), and further the bypass pipe line (6) is watertight. In the drain trap pipe for discharging the drainage of the tank body, the cap upstream pipe having a cap member (7) which is detachably attached to the bypass pipe (6) and can be taken out from the drain port (2). The drain (2) side end of the part (5) and the bypass pipe (6) are integrated. A drain trap pipe, characterized.

  In the drain trap pipe described in paragraph 0009, the trap upstream pipe (5) and the end of the bypass pipe (6) on the side of the drain outlet (2) are integrated with each other. Is a drain trap pipe characterized by forming a single circular shape when viewed in the axial direction and connecting the end portion to the drain port (2) by screwing with a screw.

  Since the drain trap pipe of the present invention is configured so that the bypass pipe and the trap upstream pipe are integrated, the bypass pipe and the trap upstream pipe can be connected to the drain outlet in one operation. . For this reason, compared with the case where both are connected separately, workability | operativity and the difficulty of generating water leakage can be improved, and the unit price of a product can be suppressed.

Embodiments of the present invention will be described below with reference to the drawings.
The embodiment of the present invention shown in FIG. 1 is an integral member that forms the drainage device described below, a trap upstream pipe (5), a trap (4), and a bypass pipe (6). The trap pipe member (15) and the trap downstream pipe (14) are configured.
The drainage device (1) is a bottomed cylindrical member that is attached to the bottom surface of the sink (S), which will be described later, and that opens upward to form the drainage port (2). A flange portion (9) projecting outward is formed, a mounting portion (10) is provided on the lower side surface of the flange portion (9), and a bypass pipe line (6 ) Is provided with an outlet (3) that also serves as a connecting portion (13).
In addition, the drainage device (1) has a mounting portion (12) attached to the bottom surface of the sink (S) by engaging the mounting portion (10) of the drainage device (1) on the inner surface and flowing the drainage device (1). The annular member (11) which has is provided.
The trap piping member (15) is a member having a shape part obtained by rolling over a tubular body bent in an S-shape. The bent part is used as a sealed part, and drainage is stored in the sealed part as sealed water. The trap part (4) prevents the odor and pests from the sewage side from entering the indoor side by the sealed water, and the outlet (3) and the trap part (4) of the drainage device (1). The upstream end portion is composed of a trap upstream pipe portion (5) communicating in a watertight manner so that the drainage does not leak to the outside, and further on the wall surface of the trap portion (4) and downstream of the trap when the construction is completed. The bypass pipe (6) is integrally provided on the side surface which is substantially the upper part of the extension line of the central axis of the pipe (14). This bypass pipe line (6) is a pipe body that water-tightly communicates the outlet (3) of the drainage device (1) and the inside of the trap part (4) so that the drainage does not leak outside.
Further, a stepped portion (16) is formed at the periphery of the end of the bypass pipe (6) on the drain outlet (2) side, and the state is in contact with the inner surface and the lower end surface of the stepped portion (16). And a cap member (7) having an annular packing (7a) formed in an annular shape, which is closed in a watertight and airtight manner to close the bypass pipe (6).
The trap downstream pipe (14) is a pipe body that water-tightly communicates the downstream end of the trap section (4) and an underfloor pipe described later so that the drainage does not leak outside.
Further, the trap pipe member (15) has a semicircular arc shape at the end of the bypass pipe (6) and an end of the trap upstream pipe (5) at the center of the bypass pipe (6). It is coaxial with the shaft and shaped like a semicircular arc facing downward in the axial direction, that is, as shown in FIG. The pipe body forming 4) is formed in a flat shape in which the direction toward the trap upstream pipe portion (5) to the trap downstream pipe (14) in the axial direction is narrow.
Further, in this drain trap pipe, a nut member having a screw for connecting the end of the pipe formed by the trap upstream pipe (5) and the bypass pipe (6) and the drain (2), and a cross section A triangular packing which is a triangular ring member is provided.

As shown in FIG. 7, each member configured as described above is connected to the sink (S) of the sink which is a drainage device configured as follows on the upstream side, and the downstream side is also the same below. It is connected to the underfloor piping constructed as follows.
The sink includes a sink (S) that is a tank body capable of storing discharged water, a cabinet that is provided below the sink sink (S), and stores a drain trap pipe and the like, and the sink (S). It consists of a mounting hole provided on the bottom surface.
The underfloor piping is piped to the underfloor space between the floor surface of the living space and a floor surface for piping such as a curing surface of concrete or the like, and is slightly about 1 to 2 degrees with respect to the horizontal plane. A drain main pipe (P1) piped along a substantially horizontal direction, and a branch pipe section (P2) connecting the drain main pipe (P1) and the downstream end of the drain trap. Furthermore, the downstream side communicates with the sewer etc. by a vertical pipe or the like.

Each member configured as in paragraph 0012 is applied to the sink described in paragraph 0013 as follows.
First, the drainage device (1) is mounted in a mounting hole provided on the bottom surface of the sink (S) of a sink placed at a predetermined position indoors, and the flange (9) is mounted on the periphery of the mounting hole. Arrange so that From this state, the annular member (11) is inserted from below the drainage device (1), and the mounted portion (12) of the annular member (11) and the mounting portion (10) of the drainage device (1) are engaged. The attachment of the drainage device (1) to the sink (S) is completed by sandwiching the periphery of the attachment hole between the flange portion (9) and the annular member (11).
Next, the trap upstream pipe (5) formed integrally with the bypass pipe (6) is connected to the outlet (3) of the drain (1), and the trap (4) and the trap downstream pipe ( 14) The branch pipe portions (P2) are connected and fixed in a watertight manner.
Further, the cap member (7) is fitted into the stepped portion (16) and closed, and the drain trap pipe is completely installed on the sink.

When the sink provided with the drain trap pipe of the embodiment of the present invention constructed as described above is used, drainage generated in the sink (S) is discharged from the drain (1) to the outlet (3), the trap. The water is finally discharged from the drain main pipe (P1) to the sewage side through the upstream pipe section (5), the trap section (4), the trap downstream pipe (14), and the branch pipe section (P2).
At this time, since the bypass pipe (6) is watertightly closed by the cap member (7), odors and pests do not enter the indoor side from the sewage side.

In addition, when pipe clogging occurs in the drain trap pipe configured as described above,
1. If there is any clogged material in the trap upstream pipe (5) or trap (4), insert the metal wire of the can tool method or the hose tube of the high pressure washing method from the outlet (3) By performing the tool method or the high-pressure washing method, the clogging material can be destroyed and the blockage can be eliminated.
2. If the clogging material is attached to the trap downstream pipe (14), remove the cap member (7) of the drainage device (1), take it out from the drainage port (2), and remove it from the bypass pipe (6). By inserting a metal wire or a high pressure cleaning hose tube and performing a can tool method or a high pressure cleaning method, the clogging material can be broken and the blockage can be eliminated.
At this time, the trap body (4) is made flat so that the direction toward the trap upstream pipe (5) to the trap downstream pipe (14) becomes narrower, and the trap upstream pipe (5) to the trap downstream. Since the pipe (14) is narrow and the bypass line (6) can be shortened by that amount, the can tool method and the high pressure washing method can be performed more easily than the conventional method using the bypass line. it can.

The embodiments of the present invention are as described above. However, the present invention is not limited to the above-described embodiments, and can be freely changed without changing the gist as necessary.
For example, in each of the above-described embodiments, the tank body is a sink provided with a cabinet, but the present invention is not limited to the above-described embodiment, and is used for various tank bodies of a bathtub, a sink, and a hand-washer near the toilet. be able to.

  Moreover, in the said Example, although the trap upstream pipe part (5) and the bypass pipe line (6) are each made into the semicircular arc of axial direction view, it is not a thing especially limited to this semicircular arc shape, For example, it drains by adhesion | attachment As long as the vessel (1) and the trap upstream pipe (5) are connected, they may be molded into an arbitrary shape such as a rectangular shape in the axial direction. Further, even when the drainage device (1) and the trap upstream pipe portion (5) are connected by a screw, as long as they can be combined into a perfect circle in the axial direction, as in the embodiment The trap upstream pipe part (5) and the bypass pipe line (6) are not semicircular when viewed in the axial direction, but may have any shape as viewed in the axial direction.

  In each of the above embodiments, the drainage device (1), the trap portion (4), and the trap downstream pipe (14) are separate members, and the bypass pipe (6) and the trap upstream pipe portion are connected to the trap portion (4). (5) is integrally provided as a trap pipe member (15). However, the present invention is not limited to the above-described embodiment, and if necessary, the drainage device (1), the trap upstream. The pipe part (5), the trap part (4), the trap downstream pipe (14), and the bypass pipe line (6) may be formed as separate members or as an integral member.

It is sectional drawing of the side surface direction of the Example of this invention. It is sectional drawing to which the outflow exit vicinity of the Example of this invention was expanded. It is a B arrow view of the Example of this invention. It is CC 'arrow line view of the Example of this invention. It is sectional drawing which shows a prior art example. It is sectional drawing which shows a prior art example. It is a perspective view which shows the drainage equipment containing a sink, and the underfloor piping given to it.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Drainage device 2 Drainage port 3 Outflow port 4 Trap part 5 Trap upstream pipe part 6 Bypass pipe line 7 Cap member 7a Annular packing 9 Flange part 10 Mounting part 11 Annular member 12 Mounted part 13 Connection part 14 Trap downstream pipe 15 Trap piping Member 16 Step pushing part P1 Drain main pipe P2 Branch pipe part S Sink sink

Claims (2)

A drain (1) having a drain (2) and an outlet (3);
A trap part (4) provided on the downstream side of the outlet (3);
A trap upstream pipe section (5) communicating the drain port (2) and the trap section (4);
A trap downstream pipe section that communicates the trap section (4) with the underfloor pipe;
A bypass pipe (6) provided in the drainage device (1) from the drain port (2) to the trap downstream pipe part and not passing through the trap part (4);
Furthermore, the bypass pipe (6) was water-tightly closed, and provided with a cap member (7) that was detachable from the bypass pipe (6) and could be taken out from the drain port (2).
In the drain trap pipe that discharges the drainage of the tank body,
A drain trap pipe characterized by integrally forming the trap upstream pipe (5) and the end of the bypass pipe (6) on the drain outlet (2) side. In the drain trap pipe according to claim 1,
Drain port (2) side end of trap upstream pipe (5) and bypass pipe (6)
When united and combined, it forms a single circle in the axial direction,
A drain trap pipe, wherein the end and the drain port (2) are connected by screwing.

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