JP7429632B2 - fitting - Google Patents

Description

The present invention relates to a joint.

Patent Document 1 listed below describes a joint structure including a main body trunk whose one end is connected to a horizontal pipe and the other end is connected to a vertical pipe. A bent portion is formed in the main body tube portion of this joint, and a cleaning port is provided at a position overlapping the bent portion in plan view. This makes it easier to clean the inside of the connected piping and makes the installation space for the piping more compact.

JP2020-63564A

In Patent Document 1, the cleaning port of the main body tube is closed with a closing member. The lid forming this closing member is circular in plan view, and has a female screw formed therein. By screwing this female screw into the male screw of the main body tube, the main body tube is closed.

Here, the cleaning opening of the main body tube needs to be large enough to cause no problem in inserting the cleaning nozzle. The cleaning port has a substantially rectangular shape along the horizontal drawing pipe, while the lid has a circular shape. Therefore, in order to ensure a large cleaning port, it is also necessary to increase the diameter of the lid that covers the cleaning port. In this case, for example, when a plurality of main body tube sections are arranged side by side in a direction intersecting the axial direction of the main body tube sections, it is difficult to compact the installation space in this direction.

In consideration of the above-mentioned facts, the present invention aims to provide a joint that can reduce the installation space in a direction intersecting the axial direction of the main body tube.

The joint of the first aspect includes a main body pipe portion formed in a tubular shape, curved around a bending part, and having one end and the other end in the axial direction connected to a pipe material through which drainage water from a plumbing fixture flows; a cleaning port formed along the axial direction in the pipe portion and provided at a position overlapping at least a portion of the bent portion in a plan view; and a closing member closing the cleaning port from above; The member has a shape along the axial direction in plan view.

In the joint of the first aspect, the cleaning port is provided at a position overlapping at least a portion of the bent portion of the main body tube portion. Therefore, it is easy to clean both the pipe material connected to one end and the other end of the main body pipe part.

Further, the cleaning port and the closing member that closes the cleaning port from above have a shape that extends along the axial direction of the main body tube portion when viewed from above. Therefore, regardless of the size of the cleaning port, the closing member can close the cleaning port by adjusting the size in the axial direction. Thereby, the installation space of the joint can be made compact in the direction intersecting the axial direction of the main body tube portion.

In the joint of the second aspect, the closing member forms a part of the flow path of the main body pipe portion.

In the joint of the second aspect, the closing member forms a part of the flow path of the main body tube. Therefore, a core member for forming the flow path is not required. This allows the number of parts of the joint to be reduced.

A third aspect of the joint includes a fixing part provided on the main body tube and the closing member, and a fixing member screwed into the fixing part from above to fix the closing member to the main body tube. ing.

In the joint of the third aspect, by screwing the fixing member downward from above, the closing member that closes the cleaning port from above is fixed to the main body pipe portion. Therefore, the closing member can be fixed to the main body pipe portion by working from above. Thereby, there is no need to secure a working space to the side of the closing member. For this reason, even when the joints are arranged side by side in a direction intersecting the axial direction of the main body tube part, the work of attaching and removing the closing member is easy.

In the joint of the fourth aspect, the fixing portions are provided on both sides of the closing member in a direction intersecting the axial direction in a plan view, and each of the fixing portions is arranged at different positions in the axial direction of the main body tube portion. has been done.

In the joint of the fourth aspect, the fixing portions are provided on both sides of the closing member in plan view. The fixing parts are arranged at different positions in the axial direction of the main body tube part. Therefore, even when the joints are arranged side by side in a direction intersecting the axial direction of the main body tube, the fixed parts are unlikely to interfere with each other. Thereby, the installation space of the joint can be made compact in the direction intersecting the axial direction of the main body tube portion.

In the fifth aspect of the joint, the closing member has a transparent portion, and a light shielding member is attached to the transparent portion.

In the joint of the fifth aspect, the closing member has a transparent portion. Therefore, the inside of the closing member is visible from the outside of the joint. Further, a light shielding member is attached to the transparent part.

Thereby, when inspecting the drainage status in the drainage path, the inspection can be done by peeling off the light shielding member. This eliminates the need to remove the closing member, making inspection easier. Furthermore, by attaching the light shielding member, it is possible to suppress light from entering into the piping route, so it is possible to suppress the growth of algae, etc. in the piping route.

According to the joint according to the present invention, the installation space can be made compact in the direction intersecting the axial direction of the main body tube portion of the joint.

1 is a schematic diagram showing the overall configuration of a siphon drainage system using a joint with a cleaning port according to an embodiment of the present invention. FIG. 2 is a perspective view showing a main body pipe portion, a lid, and a light shielding member of a joint with a cleaning port according to an embodiment of the present invention. FIG. 2 is a cross-sectional perspective view showing a state in which a cleaning port formed in a main body pipe portion of a joint with a cleaning port according to an embodiment of the present invention is closed with a lid. It is a top view showing the main body pipe part of the joint with a cleaning port concerning an embodiment of the present invention. FIG. 2 is a perspective view showing a fixing part in a main body tube part of a joint with a cleaning port according to an embodiment of the present invention. FIG. 2 is a top view showing a state in which a joint with a cleaning port according to an embodiment of the present invention is fixed to a slab. FIG. 2 is a top view showing a state in which joints with cleaning ports according to an embodiment of the present invention are arranged and fixed to a slab.

Hereinafter, a joint and a pipe connection method according to an embodiment of the present invention will be described with reference to the drawings. Components indicated using the same reference numerals in each drawing mean the same components. However, unless otherwise specified in the specification, each component is not limited to one, and a plurality of components may exist. Furthermore, descriptions of overlapping structures and symbols in each drawing may be omitted. Note that the present invention is not limited to the following embodiments, and can be implemented with appropriate changes, such as omitting the configuration or replacing it with a different configuration, within the scope of the purpose of the present invention.

In each figure, the directions indicated by arrows X and Y are along the horizontal plane and are orthogonal to each other. Further, the direction indicated by arrow Z is a direction along the vertical direction (up and down direction). It is assumed that the directions indicated by arrows X, Y, and Z in each figure coincide with each other.

FIG. 1 schematically shows the overall configuration of a siphon drainage system 10 in which a joint 50 with a cleaning port (hereinafter referred to as joint 50) according to the present embodiment is used. The siphon drainage system 10 according to the present embodiment is a drainage system that efficiently discharges waste water from the plumbing fixtures 20 using siphon force.

<Siphon drainage system>
The siphon drainage system 10 is used in an apartment building having multiple floors, and as shown in FIG. 1, it is equipped with a drainage vertical pipe 12 that allows drainage to flow downward. This vertical drainage pipe 12 extends in the vertical direction (vertical direction) of the housing complex, and penetrates the slab 14 on each floor of the housing complex.

Note that the drainage vertical pipe 12 is disposed inside the building in a pipe space that penetrates the slab 14 and is formed over multiple floors. Alternatively, the drainage vertical pipe 12 may be placed outside the outer wall 16 that partitions the inside and outside of the building, for example, inside a meter box or the like. The siphon drainage system 10 of this embodiment is suitably used in apartment complexes, but can also be used in various buildings other than apartment complexes, such as detached houses, office buildings, commercial buildings, and factories.

A plumbing fixture 20 is provided in each unit on each floor of the apartment complex. The plumbing fixture 20 is, for example, a kitchen sink, and a disposer 22 and a drain trap 24 are connected to the downstream side in the drainage direction. An L-shaped piping member 26 bent into an L-shape is arranged downstream of the drainage trap 24 in the drainage direction. The L-shaped piping member 26 includes a vertical part 26A connected to the drain trap 24 and extending in the vertical direction, a horizontal part 26B arranged horizontally on the slab 14 and extending in the horizontal direction, and the vertical part 26A and the horizontal part 26B. It includes a curved portion 26C that connects the two. In addition, the water fixture 20 may be other drainage systems such as a bathtub, a washbasin, a washing machine, etc.

On the downstream side of the L-shaped piping member 26 in the drainage direction, a horizontal pipe member 28 is arranged on the slab 14 and extends horizontally, in other words, in a direction perpendicular to the vertical direction. The L-shaped piping member 26 and the horizontal drawing pipe member 28 are connected via a joint 30.

A first connecting portion 60 of a joint 50, which will be described later, is connected to the downstream end of the horizontal drawing pipe member 28 in the drainage direction via a joint 32. A vertical pipe member 36 is arranged downstream of the joint 50 and extends in the vertical direction. A second connecting portion 62 of the joint 50 is connected to the upstream end of the vertical pipe member 36 . Note that the lower end of the joint 50 is inserted into a through hole 14A formed in the slab 14, and the joint 50 and the vertical pipe member 36 are disposed to pass through the through hole 14A.

The downstream end of the vertical pipe member 36 in the drainage direction is connected via a joint 42 to a merging joint 40 attached to an intermediate portion of the vertical drainage pipe 12 .

In this embodiment, the piping portion horizontally arranged on the slab 14, specifically the horizontal portion 26B of the L-shaped piping member 26 and the horizontally drawn pipe member 28, are connected to the horizontally drawn pipe 46 of the siphon drain pipe 44. The vertical pipe member 36 is used as a vertical pipe 48 of a siphon drain pipe 44. In addition, from the viewpoint of ensuring drainage performance, the horizontal draw pipe 46 may be provided with a water gradient that slopes downward from the joint 30 toward the joint 32. In this embodiment, "horizontal" includes an inclination similar to a water gradient.

<Joint>
As shown in FIG. 2, a joint 50, which is an example of the joint of the present invention, includes a main body pipe portion 52 and a lid 58 as a closing member. The main body tube portion 52 and the lid 58 of this embodiment are made of synthetic resin.

(Main body tube)
The main body tube part 52 is a joint main body made of opaque synthetic resin, for example, and curved into a substantially L-shape, as shown in FIG. The main body tube portion 52 includes a cylindrical first connecting portion 60 extending along the axial direction of the horizontal drawing tube 46 and a cylindrical second connecting portion 62 extending along the axial direction of the vertical tube 48. , is equipped with. Note that the main body tube portion 52 may be formed of a transparent (light-transmitting) synthetic resin.

The main body pipe portion 52 also includes wall portions 52A, 52B, and 52D that connect the downstream end of the first connecting portion 60 and the upstream end of the second connecting portion 62, and a bent portion 52C. The first connecting portion 60 and the second connecting portion 62 arranged on both sides of the bent portion 52C extend in directions orthogonal to each other.

The joint 32 is connected to the first connection portion 60 . The second connecting portion 62 is formed to have a larger diameter than the main body tube portion 52, and the upstream end of the vertical tube 48 can be inserted into the second connecting portion 62.

In this way, the joint 50 with a cleaning port for the siphon drain pipe 44 of this embodiment connects the horizontal pipe 46 and the vertical pipe 48, and connects the pipe extending in the substantially horizontal direction (lateral direction) vertically downward. It functions as a bent pipe that drops into the side.

As shown in FIG. 2, the bent portion 52C has a shape obtained by dividing a curved cylindrical body in half, and forms the inner circumferential surface of the drainage channel. Step portions 52CA are formed on both sides of the upper end surface of the bent portion 52C when viewed from the center line CL of the main body tube portion 52. A bent portion 58C of the lid 58 is placed on this stepped portion 52CA.

The wall portion 52A is a wall portion raised upward from the outside of each stepped portion 52CA in the bent portion 52C, and is arranged along the axial direction of the main body tube portion 52 in plan view.

The wall portion 52B is a wall portion that connects one end (the end on the second connecting portion 62 side) of the two wall portions 52A, and is formed in an arc shape in a plan view. Moreover, the wall portion 52B is raised upward from the second connecting portion 62, as shown in FIG. Note that a flange 62CA is formed at the upper end of the second connecting portion 62, on which a bent portion 58C (a portion integrated with the wall portion 58B) of the lid 58 is placed. The flange 62CA is a portion of the second connecting portion 62 that projects inward in the radial direction.

As shown in FIG. 2, the wall portion 52D is a wall portion that connects the other ends (ends on the first connecting portion 60 side) of the two wall portions 52A, and is formed linearly in plan view. The first connecting portion 60 is connected to the end portions of the wall portion 52D and the bent portion 52C.

Note that the main body tube portion 52 is formed in a cylindrical shape from the first connecting portion 60 to the second connecting portion 62. Among these, a cleaning port E is formed above the bent portion 52C, and the flow path is not blocked. It shall be called "cylindrical".

(Cleaning port on main body pipe)
The area surrounded by the walls 52A, 52B, and 52D forms a cleaning port E in the main body tube section 52. The cleaning port E is an opening formed so as to cover the bent portion 52C in a plan view. Further, the cleaning port E is shaped along the axial direction of the main body tube portion 52 and has a substantially rectangular shape.

From the cleaning port E, the inside of the first connecting portion 60 and the second connecting portion 62 can be approached. In other words, a cleaning tool such as a cleaning nozzle inserted into the main body pipe portion 52 through the cleaning port E can be made to reach the inside of the horizontal drawing pipe 46 (see FIG. 3, etc.) via the first connecting portion 60. . Similarly, the cleaning tool can be made to reach the inside of the vertical pipe 48 (see FIG. 3, etc.) via the second connecting portion 62.

(Lid fixing flange on main body tube)
As shown in FIG. 4, lid fixing flanges 54A and 54B (hereinafter referred to as flanges 54A and 54B) as an example of a fixing part in the present invention are formed on walls 52A and 52B of the main body tube part 52. . The flange 54A is a flange formed at the upper end of each of the two wall portions 52A and protrudes in a direction intersecting the axial direction of the main body tube portion 52 indicated by the center line CL in plan view.

Further, the flanges 54A are provided on both sides of the main body tube portion 52 in a direction intersecting the axial direction in a plan view. The respective flanges 54A are arranged at different positions (positions P1, P2) in the axial direction of the main body tube portion 52.

On the other hand, the flange 54B is a flange formed at the upper end of the wall portion 52B and protrudes in the axial direction of the main body tube portion 52 in plan view.

These flanges 54A, 54B are formed with through holes that penetrate in the vertical direction. A female threaded portion H1 is formed on the inner circumferential surface of each of these through holes.

(Fixed part of main body tube part)
As shown in FIG. 5, a fixed portion 56 is formed below the bent portion 52C of the main body tube portion 52 so as to be constant with the bent portion 52C. The fixing part 56 is a positioning member for positioning the plurality of joints 50, and as shown in FIG. It is equipped with 56B.

Furthermore, the fixed portion 56 includes a connecting portion 56C that connects the fixed portions 56A and 56B. Note that, as shown in FIG. 3, the connecting portion 56C is integrally formed with the bent portion 52C.

As shown in FIG. 5, the fixing portion 56A includes a plate portion 56AA, a fixing leg 56AB, a through hole 56AC, and a positioning leg AD. The plate portion 56AA is a plate-shaped member arranged parallel to the slab 14. The fixed leg 56AB protrudes downward from the plate portion 56AA and is disposed in contact with the slab 14. The through hole 56AC is a hole that vertically passes through the plate portion 56AA and the fixed leg 56AB, and has a diameter that allows a screw to be inserted therethrough, but a diameter that does not allow the screw head to be inserted therethrough. The positioning leg AD is a portion that protrudes downward from the plate portion 56AA and comes into contact with the slab 14.

On the other hand, the fixing part 56B includes a plate part 56BA, a groove part 56BB, and a positioning hole 56BD. The plate portion 56BA is a plate-shaped member arranged parallel to the slab 14 and in contact with the slab 14. The groove portion 56BB is a substantially U-shaped opening formed in the plate portion 56BA. The positioning hole 56BD is a through hole formed in the plate portion 56BA.

Here, when the main body tube parts 52 different from the main body tube parts 52 are arranged side by side in a direction intersecting the axial direction of the main body tube parts 52 in a plan view, the fixing part in one of the main body tube parts 52 (on the right side in FIG. 5) The plate portion 56AA of 56 is placed over the plate portion 56BA of the fixing portion 56 in the other main body tube portion 52 (on the left side in FIG. 5). That is, in a state where these are overlapped, the plate portion 56AA becomes the upper plate portion, and the plate portion 56BA becomes the lower plate portion.

Further, the fixing leg 56AB of the fixing portion 56A in one main body tube portion 52 is engaged with the groove portion 56BB of the fixing portion 56B in the other main body tube portion 52.

Furthermore, the positioning leg AD of the fixing part 56A in one main body tube part 52 is inserted into the positioning hole 56BD of the fixing part 56B in the other main body tube part 52 (left side in FIG. 5).

In this state, by inserting a screw (concrete screw) into the through hole 56AC of the fixed part 56A in one main body pipe part 52 and screwing this screw into the slab, the fixed part 56A in one main body pipe part 52 is inserted. and the fixing portion 56B of the other main body tube portion 52 are fixed to the slab 14.

Here, the lower end of the fixed leg 56AB in the fixed part 56A and the lower surface of the plate part 56BA in the fixed part 56B are at the same height. Therefore, in the joint 50 located at the end of the plurality of joints 50 lined up, the plate portion 56BA that does not engage with the fixed leg 56AB and the fixed leg 56AB that does not engage with the plate portion 56BA are directly fixed to the slab with screws. can.

(lid)
The lid 58 is made of a light-transmitting synthetic resin, and is a closing member that closes the cleaning port E of the main body tube portion 52 from above, as shown in FIG. The lid 58 includes wall portions 58A, 58B, and 58D, a bent portion 58C, and a locking portion 58E.

As shown in FIG. 3, the bent portion 58C has a shape obtained by dividing a curved cylindrical body in half, and forms the inner circumferential surface of the drainage channel. As shown in FIG. 2, the lower end surface 58CA of the bent portion 58C is placed on the stepped portion 52CA of the bent portion 52C in the main body tube portion 52. As shown in FIG. In this way, the bent portion 52C of the main body tube portion 52 and the bent portion 58C of the lid 58 form a drainage channel having a circular flat cross section. Note that a packing or the like may be disposed between the stepped portion 52CA of the bent portion 52C and the lower end surface 58CA of the bent portion 58C in consideration of water-stopping properties.

The wall portion 58A is a wall portion that stands upward from the lower end surface 5CA of the bent portion 58C, and is in the axial direction of the bent portion 52C when viewed from above (and when the lid 58 is assembled to the main body tube portion 52). In this case, they are arranged along the axial direction of the main body tube portion 52.

The wall portion 58B is a wall portion that connects one end of the two wall portions 58A (the end portion of the main body tube portion 52 on the second connecting portion 62 side), and is formed in an arc shape in a plan view. Further, as shown in FIG. 3, the lower end portion of the wall portion 58B (the portion integrated with the bent portion 58C) is placed on the flange 62CA of the main body tube portion 52, and is raised upward from the flange 62CA. .

As shown in FIG. 2, the wall portion 58D is a wall portion that connects the other ends of the two wall portions 58A (the end of the main body tube portion 52 on the first connecting portion 60 side), and extends linearly in a plan view. It is formed.

With the above configuration, a bent portion 58C is formed at the lower end of the area surrounded by the walls 58A, 58B, and 58D, and this bent portion 58C is arranged so as to cover the bent portion 52C of the main body tube portion 52. As a result, the cleaning port E in the main body tube portion 52 is closed. Further, the bent portion 58C is shaped along the axial direction of the main body tube portion 52 and has a substantially rectangular shape.

(Lid locking part and flange)
The locking portion 58E is formed over the entire upper end portions of the wall portions 58A, 58B, and 58D. The locking portion 58E includes a protruding portion 58EA that protrudes to the outside of the wall portions 58A, 58B, and 58D, and a folded portion 58EB that is folded back downward from the tip of the protruding portion 58EA.

When the lid 58 is assembled to the main body tube portion 52, the wall portions 58A, 58B, and 58D of the main body tube portion 52 are located between the folded portion 58EB of the lid 58 and each of the wall portions 58A, 58B, and 58D. placed in a sandwiched state.

In addition, when the lid 58 is assembled to the main body tube portion 52, the packing S is sandwiched between the protruding portion 58EA of the lid 58 and the upper end surface of the wall portions 58A, 58B, and 58D of the main body tube portion 52. It is placed in a state that The packing S is a gasket (flat packing) made of rubber or silicone. Note that the packing S may be an O-ring.

The protruding portion 58EA forms approximately the outer shape of the lid 58 in plan view. The protruding portion 58EA and the lid 58 are larger than the bent portion 58C in plan view, and have a substantially rectangular shape along the axial direction of the main body tube portion 52. Further, the lid 58 has a similar shape to the bent portion 52C of the main body tube portion 52 in plan view.

A folded portion 58EB of the lid 58 is formed with flanges 59A and 59B as an example of a fixing portion in the present invention. The flanges 59A and 59B are formed at positions overlapping the flanges 54A and 54B in the main body tube portion in plan view. In addition, a through hole H2 is formed in these flanges 59A and 59B so as to penetrate in the vertical direction.

When the lid 58 is assembled to the main body tube portion 52, the through holes H2 of the flanges 59A and 59B are communicated with the through holes of the flanges 54A and 54B, respectively. Then, the lid 58 is fixed to the main body tube portion 52 by screwing the bolt B into the female thread portion H1 of the main body tube portion 52.

(light shielding member)
A light shielding member 70 can be attached to the lid 58. The light shielding member 70 is, for example, an adhesive tape formed using a material (rubber, resin, etc.) that has high light shielding properties or low light transmittance, and extends from the protruding portion 58EA so as to cover the lid 58 in a plan view. can be pasted on. Note that this light shielding member 70 can be omitted as appropriate.

<Piping connection method>
As shown in FIG. 1, a procedure for connecting the horizontal pipe 46 and vertical pipe 48 of the siphon drain pipe 44 to the joint 50 will be described.

First, as shown in FIG. 3, the upper end of the vertical pipe 48 is connected to the second connecting part 62 formed at one end in the axial direction of the main body pipe part 52 of the joint 50.

Next, as shown in FIG. 5, the lower end portion of the main body tube portion 52, that is, the second connecting portion 62, the lower end portions of the bent portion 52C and the wall portion 52B are inserted into the through hole 14A formed in the slab 14. do. Next, as shown in FIG. 3, the joint 32 to which the horizontal drawing pipe 46 is connected is fixed to the first connecting portion 60.

Note that FIG. 3 shows a state in which the lid 58 is assembled to the main body tube portion 52, and FIG. 5 shows a state in which the lid 58 is assembled to the main body tube portion 52. Although the timing for covering the main body tube section 52 with the lid 58 is arbitrary, from the viewpoint of suppressing dust etc. from entering the inside of the vertical tube 48 and the main body tube section 52, it is preferable to cover the lid 58 on the main body tube section 52 before connecting the vertical tube 48 to the main body tube section 52. It is preferable to assemble the lid 58 to the main body tube portion 52 in advance.

Next, as shown in FIG. 6, the joint 50 (or the main body tube part 52) is placed in a predetermined position, and the fixing part 56 is fixed to the slab 14. When fixing only one joint 50 to the slab 14, screws are inserted into the through hole 56AC in the fixing part 56A and the positioning hole 56BD in the fixing part 56B, respectively, and screwed into the slab 14.

Note that when a plurality of joints 50 are arranged side by side in a direction intersecting the axial direction of the main body tube part 52 and each joint 50 is fixed to the slab 14, the screws are inserted only into the through holes 56AC in the fixing part 56A. , screw this screw into the slab 14.

In addition, when arranging a plurality of joints 50 side by side, as shown in FIG. It is placed over the plate portion 56BA of the fixing portion 56B in the other main body tube portion 52 (lower side in FIG. 7).

In this state, by inserting a screw (concrete screw) into the through hole 56AC of the fixed part 56 in one main body pipe part 52 and screwing this screw into the slab, the fixed part 56A in one main body pipe part 52 is inserted. and the fixing portion 56B of the other main body tube portion 52 are fixed to the slab 14.

<Action and effect>
In the joint 50 according to the embodiment of the present invention, as shown in FIG. 2, the cleaning port E is arranged to cover the bent portion 52C of the main body tube portion 52. Therefore, it is easy to clean both the pipe materials (the vertical pipe 48 and the horizontal pipe 46 shown in FIG. 3) connected to one end and the other end of the main body pipe portion 52.

(Effects due to the shape of the lid)
The cleaning port E and the lid 58 as a closing member that closes the cleaning port E from above are shaped along the axial direction (direction indicated by the center line CL) of the main body tube portion 52 in plan view. Therefore, regardless of the size of the cleaning port E, the lid 58 can close the cleaning port E by adjusting the size in the axial direction. That is, there is no need to increase the size of the main body tube portion 52 in the direction intersecting the axial direction. Thereby, the installation space for the joint 50 can be made compact in the direction intersecting the axial direction of the main body tube portion 52.

Note that the cleaning port E does not necessarily need to be disposed to cover the bent portion 52C. For example, the cleaning port E may cover at least the upper part of the vertical pipe 48 in the bent portion 52C. In this case, the lid 58 may also be placed to cover the cleaning port E.

Further, in the joint 50 according to the embodiment of the present invention, the bent portion 58C of the lid 58 forms a part of the flow path of the main body tube portion 52. That is, the bent portion 58C of the lid 58 and the bent portion 58C of the main body tube portion 52 form a flow path. Therefore, a core member for forming the flow path is not required. This allows the number of parts of the joint to be reduced.

(Effects due to main body tube and lid fixing part)
In addition, in the joint 50 according to the embodiment of the present invention, as shown in FIG. ) is formed. Similarly, through holes are formed in the flanges 59B and 54B to communicate the lid 58 and the main body tube portion 52.

Then, the lid 58 that closes the cleaning port E from above is fixed to the main body tube part 52 by screwing the bolt B, which is a fixing member, into the female threaded part H1 from above downward. Therefore, the lid 58 can be fixed to the main body tube part 52 by working from above.

Thereby, there is no need to secure a working space to the side of the lid 58. Therefore, even when the joints are arranged side by side in a direction intersecting the axial direction of the main body tube portion 52, the work of attaching and removing the lid 58 is easy.

Further, as shown in FIG. 7, the flanges 59A (and the flanges 54A) are provided on both sides of the lid 58 (both sides in the direction intersecting the axial direction of the main body tube portion) in a plan view. The flanges 59A are arranged at different positions in the axial direction of the main body tube portion 52 (positions P1 and P2).

Therefore, even when the joints 50 are arranged side by side in a direction intersecting the axial direction of the main body tube portion 52, the flanges 59A are unlikely to interfere with each other. Thereby, the installation space for the joint 50 can be made compact in the direction intersecting the axial direction of the main body tube portion 52.

(Effects depending on the material of the lid)
Furthermore, in the joint 50 according to the embodiment of the present invention, the lid 58 is made of a material that is transparent to light. Therefore, the inside of the lid 58 is visible from the outside of the joint 50. Note that the entire lid 58 does not need to be made of a light-transmitting synthetic resin, and only a portion thereof may have a light-transmitting specification. In other words, it is sufficient that a portion thereof has a transparent portion (semi-transparent portion).

Note that, as shown in FIG. 2, a light shielding member 70 can be attached to the transparent portion of the lid 58. When inspecting the drainage status in the drainage path, the light shielding member 70 can be peeled off. This eliminates the need to remove the lid 58, making inspection easier. Furthermore, by attaching the light shielding member 70, it is possible to suppress light from entering into the piping route, so it is possible to suppress the growth of algae, etc. in the piping route.

Note that, in the present invention, the lid 58 does not necessarily have to be transparent to light, and may be formed of an opaque synthetic resin. Even if the lid 58 is made of opaque synthetic resin, it does not affect the fluidity of the drainage water.

(Effects due to the fixed part of the main body tube part)
Furthermore, in the joint 50 according to the embodiment of the present invention, as shown in FIG. It is fixed at 14. By forming the fixing part 56 integrally with the main body tube part 52 in this way, the height of the main body tube part 52 relative to the slab can be maintained at a predetermined height.

When two different main body tube parts 52 are arranged side by side, the fixing part 56 in one main body tube part 52 (in FIG. 5, the fixing part 56A in the right fixing part 56) and the fixing part in the other main body tube part 52. 56 (in FIG. 5, the fixing part 56B of the left fixing part 56) is integrally fixed to the slab 14 in a state in which they are vertically overlapped. Thereby, the installation space for the joint 50 can be made compact in the direction intersecting the axial direction of the main body tube portion 52.

On the other hand, when the fixing part 56A in one main body tube part 52 and the fixing part 56B in the other main body tube part 52 are not overlapped, the fixing part 56A in one main body tube part 52 and the fixing part 56B in the other main body tube part 52 overlap. 56B in the portion 52 are arranged side by side in a direction intersecting the axial direction of the main body tube portion 52. Therefore, it is difficult to make the installation space more compact.

Furthermore, if the fixing portion 56A in one main body tube portion 52 and the fixing portion 56B in the other main body tube portion 52 are fixed to the slab 14 at close positions with screws, the drilling positions in the slab 14 become close to each other. This may cause cone failure of the slab 14.

Furthermore, in the joint 50 according to the embodiment of the present invention, the upper plate part (in FIG. 5, the plate part 56BA of the left fixing part 56) is connected to the groove part 56BB of the lower plate part (in FIG. 5, the plate part 56BA of the left fixing part 56). A fixed leg 56AB protruding downward from the plate portion 56AA) is engaged. Further, the fixed leg 56AB is formed with a through hole 56AC through which a screw for fixing the upper plate portion (plate portion 56AA) to the slab 14 can be inserted.

Therefore, by inserting the screw into the through hole 56AC of the upper plate part (plate part 56AA) with the fixed leg 56AB engaged in the groove part 56BB of the lower plate part (plate part 56BA), one of the fixed The portion 56A and the other fixed portion 56B can be fixed to the slab 14.

Furthermore, in the joint 50 according to the embodiment of the present invention, one fixed portion 56A and the other fixed portion 56B are engaged with each other not only by the fixed leg 56AB but also by the positioning leg 56AD. Thereby, it is possible to improve the positioning accuracy of one fixed part 56A and the other fixed part 56B.

<Other embodiments>
In this embodiment, as shown in FIG. 2, the lid 58, which is a closing member, forms part of the flow path, but the embodiment of the present invention is not limited to this. For example, the closure member may consist of a lid and a core. In this case, the core may be used to form part of the flow path, and the lid may cover the upper part of the core. Even in such an embodiment, the installation space for the joint 50 can be made more compact by shaping the core and the lid along the axial direction of the main body tube portion 52.

Further, in this embodiment, flanges 54A, 54B, and flanges 59A, 59B are formed on the main body tube portion 52 and the lid 58, respectively, to form a female threaded portion H1, and a bolt B is screwed into the female threaded portion H1 to form the main body. Although the lid 58 is fixed to the tube portion 52, the embodiment of the present invention is not limited thereto.

For example, a nut may be fixed to the lower surface of the flanges 54A, 54B, and the bolt B may be screwed into this nut. In this case, the flanges 54A, 54B do not need to be provided with the female threaded portion H1, but may be provided with a through hole.

Alternatively, an upwardly protruding male threaded portion may be provided on the upper surface of the flanges 54A, 54B. In this case, the lid 58 can be fixed to the main body tube part 52 by inserting the male threaded part into the through hole H2 of the flanges 59A, 59B and screwing in a nut from above.

For example, a projection (not shown) is provided inside the folded portion 58EB (see FIG. 3) of the lid 58, and the wall portions 52A, 52B, 52D of the main body tube portion 52 are connected between the projection and the wall portions 58A, 58B, 58D. The lid 58 may be fixed to the main body tube portion 52 by sandwiching the lid 58 . That is, the flanges 54A, 54B, the flanges 59A, 59B, and the female threaded portion for fixing the lid 58 to the main body tube portion 52 are not necessarily required.

In addition, in this embodiment, as shown in FIG. 5, a positioning leg 56AD is formed on the fixed part 56A, and this positioning leg 56AD is inserted into a positioning hole 56BD which is a through hole in the fixed part 56B. The embodiments of the invention are not limited to this.

First, the positioning hole 56BD may be a hole with a bottom instead of a through hole. In this case, the length of the positioning leg 56AD may be adjusted as appropriate. Moreover, the positioning leg 56AD and the positioning hole 56BD may be omitted. Even if these are omitted, the positions of the main body tube parts 52 or the joints 50 arranged side by side can be easily determined by engaging the fixing legs 56AB of the fixing part 56A with the grooves 56BB of the fixing part 56B. .

Further, in this embodiment, the fixing portion 56 is formed integrally with the main body tube portion 52, but the embodiment of the present invention is not limited to this. For example, the fixing portion 56 may not be formed in the main body tube portion 52.

In this case, for example, the main body tube 52 may be fixed to the slab 14 by placing a fixing member (resin or metal saddle) across the main body tube 52 and fixing this fixing member to the slab 14. good. Moreover, the main body tube part 52 does not necessarily need to be fixed to the slab 14, but the swinging of the main body tube part 52 may be suppressed by fixing the horizontal drawing pipe 46 and the joint 32 to the slab 14.

14...Slab (fixed object) 20...Water equipment 46...Horizontal pipe (pipe material)
48... Vertical pipe (pipe material) 52... Main body tube part 52C... Bent part 56... Fixed part 56A... Fixed part
56AA...Plate part (upper plate part) 56AB...Fixed leg 56AC...Through hole
56AD...Positioning leg 56B...Fixed part 56BA...Plate part (lower plate part)
56BB...Groove portion 56BD...Positioning hole 58...Lid (closure member)
Flange 54A...Fixing part Flange 54B...Fixing part Flange 59A...Fixing part Flange 59B...Fixing part 70...Light shielding member B...Bolt (fixing member) E...Cleaning port H1...Female thread part H2...Female thread part

Claims (4)

a main body pipe portion formed in a tubular shape, curved around the bent portion, and having one end and the other end in the axial direction connected to a pipe material through which drainage water from a plumbing fixture flows;
a cleaning port formed in the main body tube portion along the axial direction and provided at a position overlapping at least a portion of the bent portion in plan view;
a closing member that closes the cleaning port from above;
Equipped with
The closing member has a shape along the axial direction in a plan view and has a transparent portion, and a light shielding member is attached to the transparent portion.
Fittings. The closing member forms a part of the flow path of the main body tube portion,
The joint according to claim 1. a fixing portion provided on the main body pipe portion and the closing member;
a fixing member that is screwed into the fixing part from above to fix the closing member to the main body tube part;
The joint according to claim 1 or claim 2, comprising: 3. The fixing portions are provided on both sides of the closing member in a direction intersecting the axial direction in a plan view, and each of the fixing portions is disposed at a different position in the axial direction of the main body tube portion. Fittings described in .