JP2013014878A - Drain piping - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a drain piping capable of being freely assembled independently of the direction of a drain trap.SOLUTION: A drain piping 1 includes a drain pipe 2, a drain trap 10, a fixing member 15, and a casing 20. The casing 20 stores the drain trap 10 and is fixed with the bottom face of the fixing member 15. Depending on the direction of storing the casing 20, the upstream or the downstream of a drain flow path inside the drain pipe 2 is determined. When an outflow port 12 of the drain trap 10 is fixed facing the direction of an opening 4, the side of an opening 5 of the drain pipe 2 is the upstream of the drain flow path and the side of the opening 4 is the downstream. Conversely, when an inflow port 11 of the drain trap 10 is fixed facing the direction of the opening 4, the side of the opening 4 of the drain pipe 2 is the upstream and the side of the opening 5 is the downstream.

Description

The present invention relates to a drain pipe attached to a tank body such as a washstand and a sink.

Conventionally, household equipment such as a wash basin, a sink, and the like that generates wastewater by use is known. In these household facilities, a drainage pipe for guiding drainage generated by use from the drainage port to the underfloor pipe is provided at the bottom of the tank body.

Also, in the drainage pipes for household equipment, simply connecting the drainage to the sewage side, the sewage side and the household equipment are in communication, so that odors and pests enter the interior from the sewage side through the pipe. It will be. Therefore, in the drain pipe, a trap is provided in the middle of the drain pipe to connect with the drain pipe and prevent pests and odors from the sewage.

JP 2010-112121 A

The drainage piping as described above is used by changing to various layouts each time according to the needs of the user and the installer. For example, in the drainage pipe described in Patent Document 1, a release wire of a remote-operated drainage plug device that opens and closes a valve body provided at the drainage port is inserted from below the drainage port. It has a structure in which it is curved immediately below the mouth, extends in a substantially horizontal direction to some extent, and then extends downward to provide a drain trap.

However, in the drainage pipe in the prior art, the direction of the drainage trap with respect to the upstream and downstream of the drainage channel of the drainage pipe is determined. Therefore, the layout of the drainage piping must be considered according to the configuration of the device and the drain trap, and the piping could not be assembled freely.

Then, this invention makes it a subject to provide the drainage piping which can assemble piping freely regardless of the direction of a drainage trap in view of the problem of the prior art mentioned above.

Invention of Claim 1 for solving the said subject is drainage piping which drains a tank body, Comprising: The said drainage piping is a drainage pipe provided with the drainage channel inside, a drainage trap, drainage It is composed of a fixing member that fixes the position and orientation of the drain trap with respect to the pipe, and the drain pipe accommodates and fixes the drain trap inside, and the drain trap direction with respect to the drain flow path of the drain pipe during the storage It is a drainage pipe characterized by being able to be stored and fixed in a reversible manner.

The drainage pipe of the present invention can accommodate the drain trap so that the direction of the drain trap with respect to the drainage flow path of the drainage pipe can be reversed. Therefore, the drainage pipe of the present invention can reverse and change the upstream and downstream of the drainage pipe, and it is not necessary to select a layout according to the drainage trap, and the pipe can be assembled freely.

The invention according to claim 2 is the drainage pipe according to claim 1, wherein the drainage pipe is a substantially L-shaped bent pipe.

In the drainage pipe of the present invention, the drainage pipe is a substantially L-shaped bent pipe. For example, even when the horizontal pipe is desired to be connected to the vertical pipe, the vertical pipe is desired to be connected to the horizontal pipe. However, it becomes possible to connect using the drain piping of the present invention. That is, the piping can be assembled more freely.

The invention according to claim 3 is characterized in that a part of the outer wall of the drainage pipe is removable, and a drainage trap can be detached from the space generated by the removal. It is a drainage pipe of description.

In conventional drainage pipes, when cleaning or replacing a drain trap, disconnect the front and rear drain pipes, clean and replace the drain trap, and then reconnect the front and rear pipes. There wasn't. However, in the drain pipe of the present invention, the drain trap housed and fixed inside the drain pipe can be detached by removing a part of the outer wall of the drain pipe. Therefore, the drain trap can be detached without releasing the connection with the front and rear pipes, and the cleaning performance and workability are greatly improved.

The invention according to claim 4 is the drainage pipe according to claim 3, wherein the fixing member is a part of the outer wall of the removable drainage pipe.

In the drain pipe of the present invention, the outer wall of the removable drain pipe also serves as a fixing member for the drain trap. Therefore, when the outer wall of the drain pipe is removed, the drain trap is released. Therefore, the drain trap can be attached / detached only by the removal process of the outer wall, and cleaning and replacement can be performed more easily.

According to a fifth aspect of the present invention, the drain trap is a non-sealed drain trap having no sealed water inside, according to any one of the first to fourth aspects. It is a drainage pipe.

A sixth aspect of the present invention is the drainage pipe according to the fifth aspect, wherein the drain trap is a self-sealing trap made of an elastic body.

The invention according to claim 7 is characterized in that the drain trap has a ring-shaped member inside, and the ring-shaped member presses an inner wall of the drain trap to fix the drain trap. 6. The drainage pipe according to 6.

In the drainage pipe of the present invention, a self-sealing trap made of an elastic body is adopted as the drainage trap. A self-sealing trap is a drainage trap made of an elastic body with one end opened and the other opposite end closed, and the closure is expanded only when drainage flows from the opening side. It has a configuration in which drainage flows. As a method for fixing the self-sealing trap, a ring-shaped member is inserted into the self-sealing trap, and the self-sealing trap is pushed into the drain pipe in that state. According to this method, the self-sealing trap is sandwiched between the outside of the ring-shaped member and the inside of the drain pipe, and is securely fixed in a watertight manner.

The invention according to claim 8 is the drainage pipe according to any one of claims 1 to 4, wherein the drainage trap is a sealed drainage trap having sealed water inside. is there.

In the drain pipe of the present invention, the drain trap is housed inside the drain pipe, and can be stored and fixed even when the direction of the drain trap with respect to the drain flow path is reversed. Can have multiple types of layout variations. In addition, by making a part of the outer wall portion of the drain pipe removable, maintenance of the internal drain trap can be performed without releasing the connection before and after the drain pipe of the present invention even after construction.

It is an exploded sectional view showing each member and assembly of drainage piping concerning the 1st example. It is sectional drawing which shows the 1st form of the drain piping which concerns on a 1st Example. It is sectional drawing which shows the 2nd form of the drain piping which concerns on a 1st Example. It is (a) sectional drawing of the drain piping which concerns on a 2nd Example, (b) AA arrow line view of Fig.4 (a). It is sectional drawing which shows the modification of the storage method of a drain trap.

Below, the 1st example of the present invention is described in detail, referring to drawings. In addition, the following description is for making an understanding of an Example easy, and, as a result, this invention should not be limited and understood. In the following description, the positional relationship between the upper, lower, left and right will be described based on the installation state unless otherwise specified.

Hereinafter, each member will be described in detail with reference to FIG. 1 (partly FIGS. 2 and 3). In the following, in FIGS. 1 to 4, hatching is omitted for easy understanding of the drawings.

As shown in FIG. 1, the drain pipe 1 of the present embodiment is composed of a drain pipe 2, a drain trap 10 made of an elastic body, a fixing member 15 for fixing the drain trap 10, and a casing 20 made of a hard material. Has been.

The drain pipe 2 is a substantially cylindrical pipe, and has openings 3, 4, and 5 at both ends and side portions, and has a protruding portion 7 on the inner periphery. The opening 3 and the opening 4 are coaxial openings arranged at both ends of the drain pipe 2. The opening 4 is an opening projecting further downstream from the inner periphery of the inner flange 6 provided at the end of the drainage pipe 2, and the opening 5 is projectingly provided on the outer periphery of the drainage pipe 2. It is an opening. Further, the outer diameter of the drain pipe 2 is reduced by one step on the opening 4 side from the opening 3 side near the center, and has a protruding protrusion 7 on the inner periphery on the opening 3 side. Moreover, the drain pipe 2 is not provided with a drain channel by itself, and forms a drain channel inside by fitting a fixing member 15 and a casing 20 described later.

The drain trap 10 is a drain trap formed of an elastic body. The drain trap 10 has a substantially triangular cross section, and has an inlet 11 at one end and an outlet 12 at the opposite end. The inflow port 11 is a circular opening, and the outflow port 12 has a shape in which one end of a cylinder is crushed and overlapped on an axis, and is closed as long as no pressure is applied from the inside. Accordingly, when drainage flows from the inlet 11 to the outlet 12, the outlet 12 is blocked by the pressure of the drainage, and the drainage is discharged downstream. 12 is obstructed and prevents intrusion from the downstream of odors and pests. In the present specification, unlike the drain trap 10 described above, a drain trap having a shape that does not have a sealing water inside and blocks one end by using elasticity to prevent invasion of odors and pests from downstream is self-sealing. This is called a trap.

The fixing member 15 is substantially cylindrical and includes a flow path forming portion 16 and a takeout portion 17. In the flow path forming part 16, a part of the outer wall of the fixing member 15 is missing, and when coupled to the drain pipe 2, a flow path is formed by the lack. Further, the flow path forming part 16 and the take-out part 17 are completely separated, and there is no space for water or the like to move between the two parts. A packing 18 and an engagement recess 19 are provided on the outer periphery of the fixing member 15.

The casing 20 includes a hard outer case 21 and an inner case 22. The outer case 21 has a substantially concave cross section, and a groove 23 is provided on the inner periphery of one end. The inner case 22 is a substantially cylindrical member having an outer flange at one end, and the outer diameter of the inner case 22 is substantially the same as the inner diameter of the outer case 21.

The drainage pipe of the present invention constituted by the members as described above is assembled as follows.

First, the inner case 22 is inserted into the outer case 21 with the inlet 11 of the drain trap 10 fitted in the groove 23 of the outer case 21. By the insertion, the drain trap 10 is clamped by the groove 23 and the peripheral edge of the inner case 22 and fixed inside the casing 20.

Next, the casing 20 (and the drain trap 10) is inserted into the drain pipe 2 through the opening 3, but can be stored in a reversible manner with respect to the drain pipe 2, and depending on the storing direction, the inside of the drain pipe 2 can be stored. The upstream and downstream of the drainage flow path can be determined. When the outlet 12 of the drain trap 10 is fixed in the direction of the opening 4, the opening 5 side of the drain pipe 2 is upstream of the drain flow channel, and the opening 4 side is downstream (hereinafter, this state is referred to as this state). “First form”). Conversely, when the inlet 11 of the drain trap 10 is fixed in the direction of the opening 4, the opening 4 side of the pipe 2 is upstream and the opening 5 side is downstream (hereinafter, this state is referred to as the second state). Form).

At this time, since the casing 20 is composed of a hard outer case 21 and a hard inner case 22, the drain trap 10 is not deformed when the drain trap 10, which is a self-sealing trap made of an elastic body, is incorporated into the drain pipe 2. It does not occur and can be stored easily.

Next, the fixing member 15 is pushed through the opening 3. In the first embodiment, the bottom surface of the fixing member 15 and the outer case 21 come into contact with each other, and the casing 20 and the drain trap 10 are fixed (see FIG. 2). Moreover, in the 2nd form, the fixing member 15 and the inner case 22 contact | abut, and the casing 20 and the drain trap 10 are fixed (refer FIG. 3). And the protrusion part 7 of the drain pipe 2 and the engagement recessed part 19 of the fixing member 15 mutually engage, and fixing member 15 itself is also fixed.

At this time, the flow path forming portion 16 of the fixing member 15 connects the opening portion 5 and the inner periphery of the casing 20 in either of the first form and the second form, and the direction of drainage is about 90. A drainage channel is formed to be refracted.

Further, the flow path forming portion 16 and the take-out portion 17 are separated from each other, and packings 18 and 24 are provided on the outer periphery of the fixing member 15 and the casing 20 (outer case 21), respectively. Does not leak out of the flow path.

The 1st form of the drainage piping 1 of this invention comprised as mentioned above is connected as shown in FIG.

A drain pipe 1 shown in FIG. 2 is connected to a horizontal pipe 43 connected to a remote drain plug device 40.

The remote-operated drain plug device 40 is disposed below a tank body and a valve body (not shown). The remote drainage operation type drain plug device 40 includes an operation unit 41 and a release wire 42, and operates the release wire 42 by pushing the operation unit 41 to open and close the drain port.

When the present invention is incorporated in the piping structure shown in FIG. 2, drainage flows from the horizontal direction (remotely operated drain plug device 40 side). In the first embodiment of the present invention, the outlet 12 of the drain trap 10 is fixed toward the opening 4. That is, the inflow port 11 of the drain trap 10 is arranged upstream of the drainage channel, and the drainage that has flowed in from the horizontal pipe 43 flows through the opening 5, the channel forming part 16 of the fixing member 15, the inlet 11, It passes through the outlet 12 in order, and is discharged from the opening 4 to the vertical tube 44. On the other hand, odors and pests that enter from the downstream to the upstream enter from the outlet 12 side, but the outlet 12 is blocked as long as no pressure is applied from the upstream (inlet 11), and the odor , Pests can not enter indoors.

In the first embodiment, when the drain trap 10 is cleaned, replaced, etc., the fixing member 15 is removed from the drain pipe 2 by grasping and pulling up the removing portion 17 of the fixing member 15. Further, the fixing of the casing 20 is released by removing the fixing member 15. Therefore, when the drain trap 10 is cleaned, exchanged, etc., the drain trap 10 can be cleaned, exchanged, etc. without releasing the connection with other pipes, and is excellent in cleanability and construction ease.

Next, the 2nd form of the drain piping 1 of this invention is demonstrated using FIG. FIG. 3 shows the connection of the drain port 45 connected to a tank body (not shown) and the second embodiment of the present invention.

The drainage pipe 1 shown in FIG. 3 is formed by connecting an opening 4 below the drainage port 45. That is, the opening 4 is on the upstream side. The drain trap 10 according to the second embodiment of the present invention is fixed to the pipe 2 with the upper and lower sides of the casing 20 containing the drain trap 10 according to the first embodiment inverted from the first embodiment. Therefore, in the second embodiment of the present invention, the inlet 11 of the drain trap 10 is fixed so as to face the direction of the opening 4. That is, the drainage discharged from the drainage port 45 passes through the flow path in the order of the opening 4, the inflow port 11, the outflow port 12, the flow path forming unit 16, and the opening 5, and is discharged to the horizontal pipe 46.

In the second embodiment, when the drain trap 10 is cleaned, replaced, or the like, the fixing member 15 is removed from the drain pipe 2 by grasping and pulling down the removing portion 17 of the fixing member 15 as in the first embodiment. Remove. Further, the fixing of the casing 20 is released by removing the fixing member 15. Accordingly, when the drain trap 10 is cleaned and replaced, the drain trap 10 can be cleaned and replaced without releasing the connection with other pipes and the drain port 45, thereby improving cleanability and ease of construction. ing.

Next, a second embodiment of the present invention will be described.
In the first embodiment, the detachable portion of the drain pipe is a bent portion of the drain pipe, but in the second embodiment shown in FIG. 5, the straight portion is removable. The drain trap 10 is a self-sealing trap that does not have sealed water inside, but the drain trap 65 in the second embodiment is a drain trap having a sealed water section inside.

In addition, the sealed drain trap has a portion of the drainage channel, called sealed water, in which drainage accumulates, and the intrusion from the sewage side using the fact that odors and pests cannot pass through the sealed water portion. It is something to prevent.

The drainage pipe 50 according to the second embodiment shown in FIGS. 5A and 5B includes a drainage pipe 51, a fixing member 60, and a sealed drainage trap 65. In FIG. 5B, the sealing portion 70 is not shown for easy understanding of the drawing.

The drain pipe 51 is a bent pipe having a substantially L-shaped cross section, and has openings 52 and 53 at both ends. The drain pipe 51 is provided with fixing portions 54 and 55 for clamping and fixing the drain trap 65 by engaging with fixing portions 61 and 62 of a fixing member 60 to be described later on the straight portion on the opening 53 side. . Further, in the same straight line portion, the length is substantially the same as that between the fixed portions 54 and 55, and a notch of about 180 degrees in the circumferential direction is provided.

The fixing member 60 has substantially the same shape as the notch provided in the drain pipe 51, and has fixing parts 61 and 62 that engage with the fixing parts 52 and 53 of the drain pipe 51.

The drainage trap 65 is a sealed drainage trap having a substantially cylindrical shape in appearance and having an internal flow path formed in a substantially S shape. The drain trap 65 includes an inlet 66 on the opening 52 side and an outlet 67 on the opening 53 side. The inflow port 66 is always disposed on the upstream side of the drainage flow path, and the diameter thereof is substantially equal to the outer diameter of the drainage trap 65. On the other hand, the outflow port 67 is always arranged on the downstream side of the drainage channel, and the diameter thereof is considerably smaller than that of the inflow port 66.

In the present embodiment configured by the members as described above, the drainage trap 65 is inserted from the notch of the drainage pipe 51 and then assembled by fitting the fixing member 60. At this time, as shown in FIG. 5B, the fixing portions 54 and 55 and the fixing portions 61 and 62 are engaged, and the drain trap 65 is fixed. At the same time, a drainage channel is formed. And the waste water discharged | emitted from the upstream accumulates in the bottom part (sealing part 70) of the drain trap 65, and sealed water is formed.

Also in this embodiment, the attachment direction of the drain trap 65 can be reversed, and the inflow port 66 can be directed to the opening 53 side.

That is, according to the present invention, the drainage trap and / or the casing can be stored and fixed even if the mounting direction is reversed, so that the drainage flows from the opening 5 (52) and the opening 4 (53). ) Can be used in both cases where wastewater flows in. Therefore, it is connected to a pipe or the like extending in the longitudinal (substantially vertical) direction, and the flow path is changed to the horizontal (substantially horizontal) direction, or connected to a pipe or the like extending in the lateral (substantially horizontal) direction. It is possible to change both in the vertical (substantially vertical) direction. Further, with the configuration in which a part of the drain pipe 2 (51) is detachable, maintenance of the drain trap and the like can be performed without releasing the connection between the drain pipe 2 (51) and another pipe. These features of the present invention greatly expand the degree of freedom of piping layout, and the piping can be assembled freely.

The present invention is not limited to the first and second embodiments, and can be freely changed without departing from the spirit of the invention. For example, in the first embodiment, the drain trap 10 is stored in the casing 20 by being sandwiched between the outer case 21 and the inner case 22, but as a method for storing the drain trap 10, as shown in FIG. You may employ | adopt the method of accommodating by using the ring 30 which is a member, and giving a press from the inner side of the drain trap 10 to the outer side. Further, the drain trap that can be used in the present invention is not limited to the one shown in the above embodiment, and other known and well-known drain traps may be used.

Moreover, according to this invention, it is also possible to replace | exchange an internal drain trap according to a user's convenience. For example, in a sealed drainage trap, when leaving a house for a long time due to a business trip or homecoming, the sealed water inside may evaporate. It is also possible to change to a non-sealed drainage trap such as a self-sealing trap.

DESCRIPTION OF SYMBOLS 1 Drain pipe 2 Drain pipe 10 Drain trap 11 Inlet 12 Outlet 15 Fixing member 16 Flow path formation part 20 Casing 21 Outer case 22 Inner case 23 Groove 30 Ring 43 Horizontal pipe 44 Vertical pipe 45 Drain outlet 46 Horizontal pipe 50 Drain pipe 51 Drain Pipe 52 Opening 53 Opening 60 Fixing Member 65 Drain Trap 66 Inlet 67 Outlet 70 Sealing Part

Claims (8)

A drainage pipe for draining the tank body,
The drainage pipe is
A drain pipe with a drain channel inside,
Drain trap,
It consists of a fixing member that fixes the position and orientation of the drain trap with respect to the drain pipe,
The drain pipe stores and fixes a drain trap inside,
A drainage drainage pipe characterized in that the drain trapping direction can be stored and fixed in a reversible manner with respect to the drainage flow path of the drainage pipe during the storage. The drain pipe according to claim 1, wherein the drain pipe is a substantially L-shaped bent pipe. The drainage pipe according to claim 1 or 2, wherein a part of the outer wall of the drainage pipe is removable, and a drainage trap can be detached from a space generated by the removal. The drain pipe according to claim 3, wherein the fixing member is a part of an outer wall of the removable drain pipe. The drainage pipe according to any one of claims 1 to 4, wherein the drainage trap is a non-sealed drainage trap having no sealed water inside. The drain pipe according to claim 5, wherein the drain trap is a self-sealing trap made of an elastic body. The drainage pipe according to claim 6, wherein the drain trap has a ring-shaped member inside, and the ring-shaped member presses an inner wall of the drain trap to fix the drain trap. The drainage pipe according to any one of claims 1 to 4, wherein the drainage trap is a sealed drainage trap having sealed water inside.

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