JP4795786B2 - Drainage with trap - Google Patents

Description

  The present invention relates to a drain with a trap that prevents backflow of odor.

  In recent years, drainage pipes from water facilities such as toilets, washstands, kitchens and bathrooms in the house have been piped under the floor of the house, and the drainage pipe under the floor penetrates the foundation of the house and is buried outdoors ( Piping methods that connect to drainage pits buried at the middle or middle of drainage pipes leading to public sewer pipes have become widespread.

  In such a piping method, a trap portion is provided in the indoor drainage pipe to prevent back flow of odor from the sewage pipe, etc., but when such a trap portion is not provided, There is a problem that it is troublesome and expensive to carry out the construction for installing the trap part in the drain pipe later. In such a case, it would be very convenient and economical to add a trap function to a drainage basin buried outdoors to prevent backflow of odors.

  As a drainage basin that can be provided with a trapping function to the drainage basin, for example, a basin-shaped pocket is suspended in the basin body via a downward bent pipe connected to the drainage pipe, and the pocket is sealed with trapping water. A drainage basin with a trap having a structure in which the bent pipe body and the drainage pipe are detachably connected in a one-touch manner and a handle portion is erected on the bent pipe body. (Patent Document 1).

  The above-mentioned drainage basin with a trap has the following problems, though it has an advantage that the operation of attaching and detaching the pocket and the bent tube body is simple and can easily provide a trap function for preventing the backflow of odor.

That is, the bent pipe is thinner than the drain pipe and is bent downward at right angles to the drain pipe, and a bowl-shaped pocket is attached to the lower end of the bent pipe, so that the flow of drainage in the bent pipe is reduced. It is not good, and the location of the drainage that overflows from the pocket is almost determined by the location of the drainage pipe that connects the bent pipe body. For example, the connection between the connection port of the upstream drainage pipe and the downstream drainage pipe at the lower end of the drainage basin In the drainage basin provided with a mouth, the drainage may flow back to the upstream drainage pipe depending on the position of the falling water.
JP-A-7-259174

  The present invention has been made to cope with the above-mentioned problems. The trap part can be detachably attached to easily provide the trap function, and the drainage in the trap part can be smoothly moved and discharged from the trap part. The problem to be solved is to provide a trap with a trap that can be adjusted so that the drainage to be drained to a position where it does not flow backward to the outdoor drain pipe on the upstream side.

  In order to solve the above problems, the trap with drainage of the present invention divides a container into an inflow chamber and an outflow chamber by a partition wall to form a water inlet at the lower part of the partition wall and at the upper part of the side wall of the outflow chamber. A trap part that forms an outlet and covers the container with a lid except for the upper inlet of the inlet chamber is provided below the upper connecting port of the drainage basin having an upper connecting port and a lower connecting port. The inside of the drainage basin is divided into an upper space and a lower space by a trap part and an annular support material.

  In the drain with a trap of the present invention, the trap component container is formed by forming a V-shaped recessed side wall in a part of the annular side wall, and forming the outlet in the upper part of the recessed side wall. In particular, the depression angle of the V-shaped recessed side wall is preferably 120 °, and the planar shape of the inflow chamber and the outflow chamber is preferably a sector shape having an apex angle of 120 °. And it is preferable to form an annular flange at the upper end of the container, and to attach a lid having a cutout portion corresponding to the upper end inlet of the inflow chamber to the lid receiving step on the inner periphery of the flange. In addition, the annular support member is locked to the reduced diameter step portion of the peripheral wall of the drainage basin, and the annular flange of the container is locked to the step portion formed on the inner periphery of the annular support member, so that the trap part can be It is preferable to attach to the inside below the connection port. Furthermore, it is also preferable that the upper connection port of the drainage basin is formed by being displaced to one side of the drainage basin.

The drainage basin with a trap according to the present invention is embedded, for example, at the starting point or middle point of an outdoor drainage pipe, and an outdoor drainage pipe is connected to the lower connection port, and the foundation of the house is connected to the upper connection port from under the floor. The foundation through drainage pipe that penetrates is connected and constructed. When drainage flows into the drainage basin from the foundation through drainage pipe, this drainage flows from the upper end inlet of the trap part into the inflow chamber, moves to the outflow chamber through the water inlet at the lower part of the partition wall, and then flows into the outflow chamber. It flows down to the lower part of the drainage basin and is discharged from the drainage pipe connected to the lower connection port of the drainage basin to the sewerage pipe. At this time, by turning the trap part horizontally, the falling position of the drainage flowing out from the outlet at the upper side wall of the outflow chamber is adjusted so as not to flow backward from the lower connection port of the drainage basin. And the backflow of the waste_water | drain from the lower connection port to the upstream outdoor drain pipe can be prevented.
On the other hand, when the inflow of drainage from the basic through drainage pipe stops, the outflow of drainage from the outflow chamber stops when the water level in the trap part container is at the same level as the lower end of the outflow port, and the inflow chamber and inflow Drainage accumulates in the chamber and the trap parts are sealed with water. And since this trap part and the annular support material that supports it and attaches it inside the drainage basin, the interior space of the drainage basin is partitioned into an upper space and a lower space, so that odors can flow from the sewer pipe to the lower space of the drainage basin. Even if it flows backward, it does not flow back to the upper space. Therefore, the odor is prevented from flowing backward from the upper space of the drainage basin through the foundation through drainage pipe to the indoor drainage pipe. Furthermore, since the trap part is detachably attached by the annular support member, the trap part can be easily maintained by taking out the trap part from the drainage basin and cleaning the inside of the outflow chamber and the inflow chamber.

  Further, a trapezoidal container having a V-shaped recessed side wall formed in a part of the annular side wall and an outlet formed in the upper part of the recessed side wall has a fan-shaped planar shape sandwiched between the recessed side walls. Since the recessed space portion having the above becomes a drainage space for drainage flowing down from the outlet, even a large amount of drainage can be smoothly drained. In particular, when the depression angle of the V-shaped recessed side wall is 120 ° and the planar shape of the inflow chamber and the outflow chamber is a fan shape having an apex angle of 120 °, the inflow chamber, the outflow chamber, and the recessed space (flow Since the space) has substantially the same cross-sectional area, the flow of drainage becomes uniform and smooth.

  In addition, an annular flange is formed at the upper end of the container, and a lid body having a notch portion corresponding to the upper end inlet of the inflow chamber is attached to the lid receiving step portion on the inner periphery of the flange. The lid can be attached easily and accurately. And the ring support material is locked to the reduced diameter step portion of the peripheral wall of the drainage drainage, and the ring flange of the container is locked to the step portion formed on the inner periphery of the ring support material Can be performed easily and reliably.

  Furthermore, when the upper connection port of the drainage basin is displaced to one side of the drainage basin, the drainage that flows into the drainage basin from the upper connection port becomes a swirling flow. In this case, the drainage reaches the upper end inlet while turning and flows into the inflow chamber.

  Hereinafter, specific embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a plan view of a drainage basin with a trap according to an embodiment of the present invention (a plan view without a jar cover), FIG. 2 is a front view of the drainage basin with the trap, and FIG. FIG. 4 is a cross-sectional view taken along line AA of FIG. 1, FIG. 5 is an exploded cross-sectional view of the drainage basin with the trap, FIG. 6 is a perspective view of a trap part with the lid separated, and FIG. FIG. 6 is a cross-sectional view taken along the line BB of FIG.

  As shown in FIGS. 2, 3, and 4, the drainage basin with a trap is obtained by attaching a trap part 2 made of synthetic resin to the inside of a drainage basin 1 made of synthetic resin. The main body 11, the intermediate cylinder 12, the upper cylinder 13, the inner cylinder 16, the lid receiving frame 14, and the lid 15 are configured.

  The gutter body 11 is formed by shifting the lower connection port 11a connecting the upstream outdoor drain pipe 4a and the lower connection port 11b connecting the downstream outdoor drain pipe 4b to one side of the gutter body, A side wall of the heel body 11 is bulged outward to form a flowing water passage 11c that connects the lower connection ports 11a and 11b. A fitting cylinder portion 11d is formed at the upper end of the heel body 11. Yes. As shown in FIGS. 2 and 3, the lower connection port 11 a on the upstream side is formed at a position higher than the lower connection port 11 b on the downstream side, and correspondingly, a step is also provided in the flowing water passage 11 c. The upstream passage portion is formed higher than the downstream passage portion. For this reason, the drainage which has flowed down to the lower part of the main body of the main body is discharged to the outdoor drainage pipe 11b on the downstream side without riding back on the upstream passage part which is one step higher in the flowing water passage 11c.

  The intermediate cylinder 12 is for adjusting the upper connection port 13a formed in the upper cylinder 13 to the same height as the height of the foundation penetration drain pipe 5 connected to the upper connection port 13a. It is fitted and connected to the fitting cylinder portion 11d of the main body.

  As shown in FIG. 2, the upper cylindrical body 13 is formed by protruding an upper connection port 13a on one side thereof, and as shown in FIGS. 1 and 3, the base portion of the upper connection port 13a is provided. 13 b extends to the peripheral wall of the upper cylindrical body 13 while being curved. For this reason, the wastewater that flows in from the foundation through drain pipe 5 connected to the upper connection port 13a turns into a swirl flow, and the wastewater flows while turning regardless of the position of the upper end inlet of the trap component 2 described later. So that it flows into the trap part 2. And the lower part of this upper cylinder 13 is formed in the reduced diameter cylinder part 13c, and it is fittingly connected to the upper end opening of the intermediate cylinder 12, and the upper part is formed in the fitting cylinder part 13d.

  As shown in FIG. 4, a lid receiving frame 14 is fitted to the fitting cylindrical portion 13 d of the upper cylindrical body 13 via an inner cylinder 16, and the lid receiving frame 14 is made of a rigid polyvinyl chloride lid 15. Is attached. The inner cylinder 16 adjusts the height of the lid receiving frame 14 so that the lid 15 is flush with the ground. In this embodiment, there is no need to adjust the height. Cut to the same height as the portion 13.

  As shown in FIGS. 6 and 7, the trap component 2 attached to the inside of the drainage basin 1 is a bottomed container in which V-shaped recessed side walls 2 b and 2 b are formed in a part of a cylindrical annular side wall. 2a is divided into an inflow chamber 2d and an outflow chamber 2e by a partition wall 2c, a water inlet 2f is formed at the lower part of the partition wall 2c, and an outflow port 2g is formed at the upper part of the recessed side wall 2b of the outflow chamber 2e. An annular flange 2h is formed at the upper end of the container 2a. The lid receiving step 2i formed on the inner periphery of the flange 2h corresponds to the upper end inlet of the inflow chamber 2d. A lid 2k having a notch 2j having a shape is attached.

  The container 2a of the trap component 2 of this embodiment forms a recessed space portion having a fan-shaped planar shape with an apex angle of 120 ° by setting the depression angle of the V-shaped recessed sidewalls 2b and 2b to 120 °. At the same time, the container 2a is divided into two parts by the partition wall 2c so that the planar shape of the inflow chamber 2d and the outflow chamber 2e has a fan shape having an apex angle of 120 °, and the opening area of the water inlet 2f formed at the lower part of the partition wall 2c And the opening area of the outflow port 2g formed in the upper part of the recessed side wall 2b of the outflow chamber 2e is substantially the same as the cross-sectional area of the inflow chamber 2d and the outflow chamber 2e. The flow of drainage flowing down the entrance space is made even and smooth. Then, a lid 2k provided with a fan-shaped notch 2j having the same apex angle of 120 ° as the planar shape of the inflow chamber 2d is attached to the lid receiving step 2i of the flange 2h at the upper end of the container 2a.

  As shown in FIG. 4, the trap part 2 has an annular support member 3 made of rubber that is hermetically locked to a reduced diameter step portion 13 e formed in the upper cylindrical body 13 of the drainage tub 1, and this annular part. An inner portion of the drainage basin 1 below the upper connection port 13a is formed by airtightly locking the annular flange 2h of the trap component 2 to a step 3a (see FIG. 5) formed on the inner periphery of the support member 3. Is detachably attached. For this reason, the interior of the drainage basin 1 is partitioned into an upper space 17 and a lower space 18 by a trap part 2 and an annular support member 3 as shown in FIG.

  Since the outer diameter of the annular support member 3 is slightly larger than the inner diameter of the lid receiving frame 14, in this embodiment, a deformable rubber annular support member is used so that the annular support member 3 can be inserted into the drainage basin. Two semi-circular support members made of hard synthetic resin divided into two may be combined and locked to the reduced diameter step portion 13e of the upper cylindrical body 13.

  The drainage trough 1 with a trap having the above-described configuration is embedded in, for example, an intermediate point of an outdoor drainage pipe, and upstream and downstream outdoor drainage pipes 4a and 4b are connected to lower connection ports 11a and 11b. At the same time, the base through drainage pipe 5 that penetrates the foundation of the house from below the floor is connected to the upper connection port 13a. When drainage flows into the drainage basin 1 from the basic through drainage pipe 5, the drainage flows from the upper inlet of the inlet chamber 2d of the trap part 2 into the inlet chamber 2d and passes through the water inlet 2f below the partition wall 2c. It moves to the outflow chamber 2e, flows down from the outlet 2g on the upper side wall of the outflow chamber 2e to the lower part of the drainage basin body 1a, and is discharged from the outdoor drainage pipe 4b on the downstream side connected to the lower connection port 11b to the sewer pipe. The At this time, by turning the trap part 2 horizontally, the drainage position of the drainage flowing out from the outlet 2g on the upper side wall 2b of the outflow chamber 2e is changed to the outdoor drain pipe 4a upstream from the lower connection port 11a of the drainage main body 11. If the drainage is adjusted so that the drainage does not flow backward, the drained drainage does not flow backward from the lower connection port 11a to the upstream outdoor drainage pipe 4a, and in particular, a step is provided in the flowing water passage 11c. If so, it is possible to reliably prevent backflow.

  On the other hand, when the inflow of the drainage from the basic through drain pipe 5 stops, the drainage of the drainage from the outflow chamber 2e stops when the water level in the container 2a of the trap part 2 becomes the same level as the lower end of the outlet 2g. The drainage is accumulated in the outflow chamber 2e and the inflow chamber 2d, and the trap part 2 is sealed with water. And since the internal space of the drainage basin 1 is partitioned into the space between the upper space 17 and the lower space 18 by the trap part 2 and the annular support member 3 that supports and attaches the trap part 2 to the drainage basin 1, Even if the odor of the water flows back to the lower space 18 of the drainage tub 1 through the outdoor drain pipe 4b, it does not flow back to the upper space 17. Therefore, the odor is prevented from flowing backward from the upper space 17 of the drainage tub 1 to the indoor drainage pipe through the basic through drainage pipe 5.

  Further, since the trap part 2 is detachably attached by the annular support member 3, the trap part 2 can be easily maintained by removing the trap part 2 from the drainage basin 1 and cleaning the outflow chamber 2e and the inflow chamber 2d. You can also

1 is a plan view of a drainage basin with a trap according to an embodiment of the present invention (a plan view from which a lid is removed). It is a front view of the drain with a trap. It is a right view of the drain with a trap. It is the sectional view on the AA line of FIG. It is an exploded sectional view of the drainage with a trap. It is a perspective view of the trap component which shows a lid separately. FIG. 7 is a cross-sectional view taken along line B-B in FIG. 6 (a cross-sectional view in a state where a lid is attached).

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Drainage tank 11 Drainage tank main body 11a, 11b Lower connection port 12 Intermediate cylinder 13 Upper cylinder 13a Upper connection port 13e Reduced diameter step part 14 Cover receiving frame 15 Cover lid 17 Upper space 18 Lower space 2 Trap part 2a Container 2b V shape Indented side wall 2c Partition wall 2d Inflow chamber 2e Outflow chamber 2f Outlet 2g Outlet 2h Flange 2i Lid receiving step 2j Notch 2k Lid 3 Annular support 3a Step 4a Upstream outdoor drain pipe 4b Downstream Outdoor drain pipe 5 Foundation through drain pipe

Claims (6)

  The container is divided into an inflow chamber and an outflow chamber by a partition wall, a water inlet is formed in the lower part of the partition wall, an outlet is formed in the upper part of the side wall of the outflow chamber, and the lid body is formed except for the upper end inlet of the inflow chamber A trap part formed by adhering to a container is detachably attached to the inside of the drainage basin having an upper connection port and a lower connection port by means of an annular support member, and the trap part and the annular support material are attached. A drainage basin with a trap, characterized in that the interior space of the drainage basin is divided into an upper space and a lower space.   2. The trap part container according to claim 1, wherein a V-shaped recessed side wall is formed on a part of the annular side wall, and the outlet is formed on an upper part of the recessed side wall. Drainage basin with trap.   The drainage with a trap according to claim 2, wherein a depression angle of the V-shaped recessed side wall is 120 °, and a planar shape of the inflow chamber and the outflow chamber is a fan shape having an apex angle of 120 °.桝.   An annular flange is formed at the upper end of the container, and a lid having a notch portion corresponding to the upper end inlet of the inflow chamber is attached to a lid receiving step portion on the inner periphery of the flange. A drainage basin with a trap according to claim 2 or claim 3.   The annular support member is locked to the reduced diameter step portion of the peripheral wall of the drainage basin, the annular flange of the container is locked to the step portion formed on the inner periphery of the annular support member, and the trap part is attached to the drainage basin. The drainage basin with a trap according to claim 4, wherein the drainage basin is attached to the inside below the upper connection port. The drainage basin with a trap according to any one of claims 1 to 5, wherein an upper connection port of the drainage basin is displaced to one side of the drainage basin.

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