JP4951358B2 - Roof drain and drain body built into it - Google Patents

Description

  The present invention relates to a roof drain and a drain body incorporated therein. In particular, the present invention relates to a roof drain characterized by a structure embedded in a concrete floor and a drain body incorporated therein.

A veranda, balcony, corridor, etc. will be provided on each floor of the building. Since rainwater falls directly into the veranda, balcony, corridor, etc., the drainage drains the rainwater. The drainage facility includes a drainage groove, a roof drain, and a drain pipe.
The drainage ditch is formed as part of a veranda, balcony, corridor, etc., and is a ditch that collects and flows rainwater. The roof drain is a device that is provided in the middle of the drain and guides the collected rainwater downward. The distribution pipe is a device that collects rainwater collected in the roof drain from each floor and flows it downward. Rainwater leaves the distribution pipe and is sent to the ground or underground sewer.

  When building a building, the drainage and roof drain are charged into the formwork, and then concrete is poured. After that, after some construction work, water pipes are laid. Therefore, for a while, instead of the distribution pipe, the temporary pipe drains the rainwater collected in the roof drain. For example, the temporary pipe is a vinyl pipe temporarily connected to the roof drain. Temporary piping is removed when laying water distribution pipes.

  The conventional roof drain structure is not premised on connecting temporary piping, and laying of temporary piping has been a burden of construction work.

JP-A-11-315621 JP 2006-132123 A

  The present invention has been devised in view of the above-described problems, and an object of the present invention is to provide a roof drain that can be easily laid with a simple configuration and a drain main body incorporated therein.

  In order to achieve the above object, a roof drain embedded in a concrete floor surface of a building for draining rainwater according to the present invention is connected to a saucer portion receiving rainwater on the upper surface and a lower portion of the saucer portion in a vertical direction. A drain main body that forms a tubular drain pipe provided with a drain hole penetrating through, an annular part that surrounds the drain pipe part and is located below the tray part, and a projection that projects inward from the annular part And a cylindrical spacer that is disposed so as to surround the outer periphery of the drainage pipe part and forms a gap that is not filled with concrete inside, and is inserted into the gap from the lower side so as to surround the drainage pipe part A portion added to or processed in the drainage pipe in the shape is engageable with the protrusion.

According to the configuration of the present invention, the drain main body surrounds the drainage pipe part and the drainage pipe part provided with drainage holes that are connected to the lower part of the saucer part and pass through in the vertical direction. And forming an annular portion located below the tray portion and a protruding portion protruding inward from the annular portion. A cylindrical spacer is disposed so as to surround the outer periphery of the drainage pipe portion, and forms a void that is not filled with concrete inside. A portion added or processed to a cylindrical drainage pipe inserted into the gap from the lower side so as to surround the drainage pipe part can be engaged with the protrusion.
As a result, the engagement ring is sandwiched and fixed between the tray part and the spacer, and the drainage pipe is inserted into the gap from the lower side so as to surround the drainage pipe part, thereby forming a cylindrical drainage pipe. When the added or processed part is engaged with the protrusion of the engagement ring, the drainage received by the tray part enters the drainage pipe via the drainage hole of the drainage pipe part, and rainwater can be drained. .

Furthermore, the roof drain according to the embodiment of the present invention includes a fan-shaped portion in which the protruding portion extends horizontally inward from the inner peripheral surface of the annular portion, and a rising portion that rises upward from a side extending in the radial direction of the fan-shaped portion. have.
As a result, the fan-shaped portion horizontally expands inward from the inner peripheral surface of the annular portion, and the rising portion rises upward from a side extending in the radial direction of the fan-shaped portion. The part added to or processed in is restrained by the rising part, and the drainage pipe is difficult to come off.

  In order to achieve the above-mentioned object, a drainage pipe part provided with drainage holes connected to the lower part of the saucer part and penetrating vertically in order to drain rainwater according to the present invention to drain the rainwater according to the present invention; Is a member embedded in a concrete floor of a building in combination with a drain main body that forms an outer periphery and a cylindrical spacer that is disposed so as to surround the outer periphery of the drain pipe portion and that forms a void that is not filled with concrete on the inside. An engagement ring has a structure that forms an annular portion that surrounds the drain pipe portion and is located below the tray portion, and a protruding portion that projects inward from the annular portion, and surrounds the drain pipe portion The part added or processed to the cylindrical drainage pipe inserted into the gap from the lower side can be engaged with the protrusion.

With the configuration of the present invention, the drain main body forms a receiving tray portion that receives rainwater on the upper surface, and a tubular drain pipe portion that is connected to the lower portion of the receiving tray portion and has a drain hole penetrating in the vertical direction. A cylindrical spacer is disposed so as to surround the outer periphery of the drainage pipe portion, and forms a void that is not filled with concrete inside. An engagement ring forms an annular part located below the saucer part surrounding the drain pipe part and a protruding part projecting inward from the annular part. A portion added or processed to a cylindrical drainage pipe inserted into the gap from the lower side so as to surround the drainage pipe part can be engaged with the protrusion.
As a result, the engagement ring is sandwiched and fixed between the tray part and the spacer, and the drainage pipe is inserted into the gap from below so as to surround the drainage pipe part, thereby forming a cylindrical drainage pipe. When the added or processed part is engaged with the protrusion of the engagement ring, the drainage received by the tray part enters the drainage pipe via the drainage hole of the drainage pipe part, and rainwater can be drained. .

Furthermore, in the drain main body according to the embodiment of the present invention, the annular portion is connected to the flange-shaped portion sandwiched between the lower surface of the tray portion and the upper end surface of the spacer, and the inner peripheral surface of the spacer. A cylindrical portion that is in contact with each other, and the protruding portion has a fan-shaped portion that extends horizontally inward from the inner peripheral surface of the cylindrical portion, and a rising portion that rises upward from a side extending in the radial direction of the fan-shaped portion.
As a result, the bowl-shaped part is sandwiched between the lower surface of the saucer part and the upper end surface of the spacer, and the cylindrical part is connected to the bowl-shaped part and contacts the inner peripheral surface of the spacer. Positioned, the fan-shaped part horizontally expands inward from the inner peripheral surface of the cylindrical part, and the rising part rises upward from the side extending in the radial direction of the fan-shaped part. The part added or processed to the piping is restrained by the rising portion, and the drainage piping is difficult to come off.

  In order to achieve the above object, a roof drain embedded in a concrete floor surface of a building for draining rainwater according to the present invention is connected to a saucer portion receiving rainwater on the upper surface and a lower portion of the saucer portion in a vertical direction. A drain main body that forms a tubular drain pipe portion provided with a drain hole penetrating through and a projection portion that projects outward from the outer peripheral surface of the drain pipe portion, and is arranged so as to surround the outer periphery of the drain pipe portion. A cylindrical spacer that forms a gap not filled with concrete, and a portion added to or processed in a cylindrical drainage pipe inserted into the gap from below so as to surround the drainage pipe part. It is possible to engage with.

According to the configuration of the present invention, the drain body has a tray part that receives rainwater on the upper surface, a tubular drain pipe part that is connected to the lower part of the dish part and has a drain hole that penetrates in the vertical direction, and an outer periphery of the drain pipe part And a protrusion protruding outward from the surface. A cylindrical spacer is disposed so as to surround the outer periphery of the drainage pipe portion, and forms a void that is not filled with concrete inside. A portion added or processed to a cylindrical drainage pipe inserted into the gap from the lower side so as to surround the drainage pipe part can be engaged with the projection part.
As a result, when the drainage pipe is inserted into the gap from the lower side so as to surround the drainage pipe part, and the part added or processed to the cylindrical drainage pipe is engaged with the projection of the drain body The drainage received by the tray part enters the drainage pipe via the drainage hole of the drainage pipe part, and can drain the rainwater.

Furthermore, the roof drain according to the embodiment of the present invention includes a fan-shaped portion in which the protrusion extends horizontally outward from the outer peripheral surface of the drain pipe portion, and a rising portion that rises upward from a side extending in the radial direction of the fan-shaped portion. have.
As a result, in the projection, the fan-shaped portion horizontally expands outward from the outer peripheral surface of the drain pipe portion, and the rising portion rises upward from the side extending in the radial direction of the fan-shaped portion, so that the projection is engaged. The part added or processed to the drainage pipe is restrained by the rising part, and the drainage pipe is difficult to come off.

  In order to achieve the above-mentioned object, a saucer part for receiving a drain main body, which is embedded in a concrete floor surface of a building in combination with a cylindrical spacer for draining rainwater according to the present invention, and the saucer part on the upper surface A tubular drain pipe provided with a drain hole penetrating in the vertical direction and a projection projecting outward from the outer peripheral surface of the drain pipe section, wherein the spacer is the drain pipe A portion that is arranged so as to surround the outer periphery of the portion and that is not filled with concrete inside is formed, and a portion that is added or processed to a cylindrical drainage pipe inserted into the gap from below so as to surround the drainage pipe portion It is assumed that the protrusion can be engaged.

According to the configuration of the present invention, the drain body has a tray part that receives rainwater on the upper surface, a tubular drain pipe part that is connected to the lower part of the dish part and has a drain hole that penetrates in the vertical direction, and an outer periphery of the drain pipe part And a protrusion protruding outward from the surface. A cylindrical spacer is disposed so as to surround the outer periphery of the drainage pipe portion, and forms a void that is not filled with concrete inside. A portion added or processed to a cylindrical drainage pipe inserted into the gap from the lower side so as to surround the drainage pipe part can be engaged with the protrusion.
As a result, when the drainage pipe is inserted into the gap from the lower side so as to surround the drainage pipe part, and the part added or processed to the cylindrical drainage pipe is engaged with the protrusion of the drain body The drainage received by the tray part enters the drainage pipe via the drainage hole of the drainage pipe part, and can drain the rainwater.

Furthermore, the drain main body according to the embodiment of the present invention includes a fan-shaped portion in which the protruding portion extends horizontally outward from the outer peripheral surface of the drain pipe portion, and a rising portion that rises upward from a side extending in the radial direction of the fan-shaped portion. have.
As a result, in the projection, the fan-shaped portion horizontally expands outward from the outer peripheral surface of the drain pipe portion, and the rising portion rises upward from the side extending in the radial direction of the fan-shaped portion, so that the projection is engaged. The part added or processed to the drainage pipe is restrained by the rising part, and the drainage pipe is difficult to come off.

  In order to achieve the above object, a roof drain embedded in a concrete floor surface of a building for draining rainwater according to the present invention is connected to a saucer portion that receives rainwater on the top surface and a lower portion of the saucer portion and penetrates vertically. A drain body that forms a tubular drain pipe portion provided with a drain hole and a recess or a notch provided in the drain pipe portion, and an inner concrete disposed so as to surround an outer periphery of the drain pipe portion. A cylindrical spacer that forms a void that is not filled with, and a portion that is added or processed to a cylindrical drainage pipe inserted into the void from the lower side so as to surround the drainage pipe portion is the depression or It was assumed that it could be engaged with the notch.

According to the configuration of the present invention, the drain main body is provided in the drainage pipe part and the drainage pipe part provided with the drainage hole that is connected to the lower part of the saucer part and penetrates up and down through the drainage part that receives rainwater on the upper surface. A recess or a notch is formed. A cylindrical spacer is disposed so as to surround the outer periphery of the drainage pipe portion, and forms a void that is not filled with concrete inside. A portion added to or processed in the cylindrical drainage pipe inserted into the gap from the lower side so as to surround the drainage pipe portion can be engaged with the recess portion or the notch portion.
As a result, the drainage pipe is inserted into the gap from the lower side so as to surround the drainage pipe part, and the part added or processed to the cylindrical drainage pipe is used as the depression or notch part of the drain body. When engaged, the drainage received in the tray part enters the drainage pipe via the drainage hole of the drainage pipe part, and rainwater can be drained.

Furthermore, the roof drain according to the embodiment of the present invention includes a straight portion in which the cutout portion extends upward from the lower end portion of the drain pipe portion and a U-shaped portion that protrudes upward and is connected to the upper end of the straight portion. Have.
As a result, when the drainage pipe is inserted into the gap from the lower side so as to surround the drainage pipe part, the portion added or processed to the cylindrical drainage pipe protrudes upward from the straight part of the notch part. The drainage pipe is restrained by the drain body by being guided by the formed U-shaped portion and engaging with the end of the U-shaped portion.

  In order to achieve the above object, a drain body which is combined with a cylindrical spacer and is embedded in a concrete floor surface of a building in order to drain rainwater according to the present invention, a saucer portion for receiving rainwater on the top surface, and the saucer portion A tubular drainage pipe part provided with a drainage hole penetrating up and down and a hollow part or a notch part provided in the drainage pipe part, wherein the spacer is the drainage pipe part A portion that is disposed so as to surround the outer periphery of the tube and that is not filled with concrete is formed inside, and a portion added or processed to a cylindrical drainage pipe inserted into the space from the lower side so as to surround the drainage pipe portion is It was supposed to be able to engage with the recess or the notch.

According to the configuration of the present invention, the drain main body is provided in the drainage pipe part and the drainage pipe part provided with the drainage hole that is connected to the lower part of the saucer part and penetrates up and down through the drainage part that receives rainwater on the upper surface. A recess or a notch is formed. A cylindrical spacer forms a tubular drainage pipe part and a hollow part or a notch part provided in the drainage pipe part. A portion added to or processed in the cylindrical drainage pipe inserted into the gap from the lower side so as to surround the drainage pipe portion can be engaged with the recess portion or the notch portion.
As a result, the drainage pipe is inserted into the gap from the lower side so as to surround the drainage pipe part, and the part added or processed to the cylindrical drainage pipe is used as the depression or notch part of the drain body. When engaged, the drainage received in the tray part enters the drainage pipe via the drainage hole of the drainage pipe part, and rainwater can be drained.

Furthermore, the drain main body according to the embodiment of the present invention includes a straight portion in which the cutout portion extends upward from the lower end portion of the drain pipe portion, and a U-shaped portion that protrudes upward and is connected to the upper end of the straight portion. Have.
As a result, when the drainage pipe is inserted into the gap from the lower side so as to surround the drainage pipe part, the portion added or processed to the cylindrical drainage pipe protrudes upward from the straight part of the notch part. The drainage pipe is restrained by the drain body by being guided by the formed U-shaped portion and engaging with the end of the U-shaped portion.

  In order to achieve the above object, a roof drain embedded in a concrete floor surface of a building for draining rainwater according to the present invention is connected to a saucer portion receiving rainwater on the upper surface and a lower portion of the saucer portion in a vertical direction. A drain main body that forms a tubular drain pipe portion provided with a drain hole penetrating through, a cylindrical spacer that is arranged so as to surround the outer periphery of the drain pipe portion and forms a void that is not filled with concrete inside, and A strainer arranged at the upper part of the tray part so as to cover the upper surface of the drainage hole and provided with a plurality of slits or a plurality of holes, and when the vertical dimension is reduced, the horizontal dimension increases and the vertical dimension increases. A stop member that shrinks in the horizontal dimension, and a mounting member that is a bolt that changes the vertical dimension of the stop member when passing through and screwing into the stop member and the strainer, Serial stop member is caught by the at least two locations of the drainage pipe section and extend the horizontal dimension, and the things.

With the configuration of the present invention, the drain main body forms a saucer part that receives rainwater on the upper surface and a tubular drainage pipe part that is connected to the lower part of the saucer part and provided with a drainage hole penetrating in the vertical direction. A cylindrical spacer is disposed so as to surround the outer periphery of the drainage pipe portion, and forms a void that is not filled with concrete inside. A strainer provided with a plurality of slits or a plurality of holes is disposed on the upper portion of the tray so as to cover the upper surface of the drainage hole. When the vertical dimension of the stop member is reduced, the horizontal dimension is increased, and when the vertical dimension is extended, the horizontal dimension is reduced. When the mounting member, which is a bolt, penetrates and twists through the stopper member and the strainer, the vertical dimension of the stopper member is changed. When the stop member extends in the horizontal direction, it is caught at at least two locations of the drain pipe.
As a result, when the mounting member is twisted to reduce the vertical dimension, the horizontal dimension is extended, and the stopper member is hooked at at least two locations of the drain pipe portion, and the strainer can be fixed. When the mounting member is twisted in the opposite direction and the vertical dimension is extended, the horizontal dimension is reduced, so that the stopper member is disengaged from the drain pipe and the strainer can be removed.

Furthermore, the roof drain according to the embodiment of the present invention has an elastic structure in which the stopper member has a closed ring shape or a polygonal shape when viewed from the horizontal direction and is provided with a pair of through holes through which the mounting member penetrates in the vertical direction. The stopper member having a spring member and a threaded portion that is fixed to the spring member and into which the attachment member is screwed, wherein the elastic spring member has a closed ring shape or a polygonal shape when viewed from the horizontal direction, and the attachment member is A pair of through-holes penetrating in the vertical direction is provided, the threaded portion is fixed to the spring member, and the mounting member is screwed.
As a result, when the mounting member, which is a bolt, is twisted, the threaded portion moves in the vertical direction, the elastic spring member is deformed, and when the vertical dimension is reduced, the horizontal dimension increases and the vertical dimension increases. And the horizontal dimension shrinks.

  In order to achieve the above object, a roof drain embedded in a concrete floor surface of a building for draining rainwater according to the present invention is connected to a saucer portion receiving rainwater on the upper surface and a lower portion of the saucer portion in a vertical direction. A drain main body that forms a tubular drain pipe portion provided with a drain hole penetrating through, a cylindrical spacer that is arranged so as to surround the outer periphery of the drain pipe portion and forms a void that is not filled with concrete inside, and A strainer disposed at the upper part of the tray part so as to cover the upper surface of the drainage hole and provided with a plurality of slits or a plurality of holes, a stopper member which is a rod-like member provided with a screw part at one end, A mounting member that is a bolt that penetrates the strainer and is screwed into the threaded portion of the stopper member, and the other end of the stopper member is caught by the drain pipe when the mounting member is twisted It was.

With the configuration of the present invention, the drain main body forms a saucer part that receives rainwater on the upper surface and a tubular drainage pipe part that is connected to the lower part of the saucer part and provided with a drainage hole penetrating in the vertical direction. A cylindrical spacer is disposed so as to surround the outer periphery of the drainage pipe portion, and forms a void that is not filled with concrete inside. A strainer provided with a plurality of slits or a plurality of holes is disposed on the upper portion of the tray so as to cover the upper surface of the drainage hole. The stopper member, which is a rod-shaped member, is provided with a threaded portion at one end. A mounting member, which is a bolt, passes through the strainer and is screwed into the threaded portion of the stopper member. When the mounting member is twisted, the other end portion of the stopper member is caught on the flange-like edge portion.
As a result, when the mounting member is twisted, the other end portion of the stopper member is hooked on the flange-like edge portion, and the strainer can be fixed. When the mounting member is twisted in the opposite direction, the other end portion of the stopper member is detached from the drain pipe portion, and the strainer can be removed.

  In order to achieve the above object, a roof drain embedded in a concrete floor surface of a building for draining rainwater according to the present invention is positioned at a bottom portion of the tray that is recessed to receive drainage, and a lower portion of the tray portion. An upper member that is a member that forms a bowl-shaped part provided with a hole, an intermediate member that is a member that forms a bowl-shaped part provided with a hole in the center, and a drainage hole penetrating vertically And a lower member which is a member forming a tubular drainage pipe part and a bowl-like part located in the upper part of the drainage pipe part, and the upper member, the intermediate member, and the lower member And a drain body that is folded between an edge that forms a hole of the intermediate member and an edge that forms a hole of the lower member, and a drain pipe portion of the drain pipe portion. It is arranged so as to surround the outer periphery, and the upper end portion of the intermediate member A cylindrical spacer to form a gap that is not filled with concrete inside abutted against the surface provided and the things.

With the configuration of the present invention, in the drain main body, the upper member is a member that forms a saucer portion that is recessed downward to receive drainage and a bowl-like portion that is located below the saucer portion and is provided with a hole. . The intermediate member is a member that forms a bowl-shaped portion having a hole in the center. The lower member is a member that forms a tubular drainage pipe portion provided with drainage holes penetrating in the vertical direction and a bowl-like portion provided in the upper portion of the drainage pipe portion and provided with holes. The upper member, the intermediate member, and the lower member are sequentially stacked, and the inner edge of the hole of the upper member is wound around the hole edge of the intermediate member and the hole edge of the lower member. A cylindrical spacer is disposed so as to surround the outer periphery of the drainage pipe portion, and an upper end portion is abutted against the lower surface of the intermediate member to form a void that is not filled with concrete inside.
As a result, the drain main body has an integrated structure of the upper member, the intermediate member, and the lower member, and the spacer forms a gap that is not filled with concrete inside, so that a roof drain having a simple and lightweight structure can be manufactured.

  In order to achieve the above object, the drain body embedded in the concrete floor surface of the building in combination with the cylindrical spacer for draining rainwater according to the present invention, a saucer portion recessed downward to receive drainage And an upper member that is a member that forms a bowl-shaped part that is located in the lower part of the tray part and that has a hole, an intermediate member that is a member that forms a bowl-shaped part that has a hole in the center, and the vertical direction A lower member that is a member that forms a tubular drainage pipe part provided with a drainage hole penetrating through the drainage pipe part and a bowl-like part provided in the upper part of the drainage pipe part and provided with a hole. And the intermediate member and the lower member are sequentially stacked, and the edge forming the hole of the upper member is folded between the edge forming the hole of the intermediate member and the edge forming the hole of the lower member The spacer surrounds the outer periphery of the drain pipe section. Forming voids not filled with concrete placed the upper end portion is inwardly pressed against the lower surface of the intermediate member as to obtain a thing.

With the configuration of the present invention, in the drain main body, the upper member is a member that forms a saucer portion that is recessed downward to receive drainage and a bowl-like portion that is located below the saucer portion and is provided with a hole. The intermediate member is a member that forms a bowl-shaped portion provided with a hole in the center. The lower member is a member that forms a tubular drainage pipe part provided with drainage holes penetrating in the vertical direction and a bowl-like part provided in the upper part of the drainage pipe part and provided with holes. The upper member, the intermediate member, and the lower member are sequentially stacked, and the inner edge of the hole of the upper member is wound around the hole edge of the intermediate member and the hole edge of the lower member. A cylindrical spacer is disposed so as to surround the outer periphery of the drainage pipe portion, and an upper end portion is abutted against the lower surface of the intermediate member to form a void that is not filled with concrete inside.
As a result, the drain main body has an integrated structure of the upper member, the intermediate member, and the lower member, and the spacer forms a gap that is not filled with concrete inside, so that a roof drain having a simple and lightweight structure can be manufactured.

  In order to achieve the above object, a roof drain embedded in a concrete floor surface of a building for draining rainwater according to the present invention, and a saucer provided with a screw-like unevenness on a side surface recessed to receive rainwater. An upper member that is a member that forms a flange and a bowl-shaped portion that is provided in the lower portion of the saucer, and an intermediate member that is a member that forms a bowl-shaped portion provided with a hole in the center; A lower drainage member that is a member that forms a tubular drainage pipe part provided with a drainage hole penetrating in the direction and a bowl-like part provided in the upper part of the drainage pipe part and provided with a hole. The member, the intermediate member, and the lower member are sequentially stacked, and the edge forming the hole of the upper member is folded between the edge forming the hole of the intermediate member and the edge forming the hole of the lower member Arranged so as to surround the drain body and the outer periphery of the drain pipe part. A cylindrical spacer to form a gap that is not filled with concrete inwardly abutted by the upper end to the lower surface of the intermediate member comprises, to the stuff.

According to the configuration of the present invention, in the drain main body, the upper member has a saucer portion that is recessed downward to receive rainwater and has a screw-like unevenness on the side surface, and a hole that is located in the lower portion of the saucer portion and provided with a hole. It is a member which forms a shape part. The lower member is a member that forms a tubular drainage pipe portion provided with drainage holes penetrating in the vertical direction and a bowl-like portion provided in the upper portion of the drainage pipe portion and provided with holes. The upper member, the intermediate member, and the lower member are sequentially stacked, and the inner edge of the hole of the upper member is wound around the hole edge of the intermediate member and the hole edge of the lower member. A cylindrical spacer is disposed so as to surround the outer periphery of the drainage pipe portion, and an upper end portion is abutted against the lower surface of the intermediate member to form a void that is not filled with concrete inside.
As a result, the drain body has an integrated structure of the upper member, the intermediate member, and the lower member, and the spacer forms a gap that is not filled with concrete on the inside, and the strainer and the like are formed in a screw-like unevenness provided in the upper member. A roof drain having a simple and lightweight structure can be manufactured.

As described above, the loop drain according to the present invention and the drain body incorporated therein have the following effects depending on the configuration.
Prepare a drain body that has a saucer part that receives rainwater, a drain pipe part that flows rainwater, an annular part that is located under the saucer part, and a protruding part that protrudes inward from the annular part, and a cylindrical spacer is attached to the drain pipe Since the part added to the drainage pipe can be engaged with the projection, the drainage pipe is placed from the lower side to the gap so as to surround the drainage pipe part. Inserting and engaging the part added or processed to the cylindrical drainage pipe with the protruding part causes the drainage received by the tray to enter the drainage pipe via the drainage hole of the drainage pipe part. Can enter and drain rainwater.
In addition, since the protrusion is composed of a fan-shaped portion that extends horizontally inward from the inner peripheral surface of the annular portion and a rising portion that rises upward from a side extending in the radial direction of the fan-shaped portion, A portion added to the engaged drainage pipe is restrained by the rising portion, and the drainage pipe is not easily detached.
A drain main body having a tray part for receiving rain water and a drain pipe part for flowing rain water, an annular part located under the tray part, and an engagement ring composed of a protrusion part projecting inward from the annular part are prepared. Since the cylindrical spacer is placed under the drain body around the drain pipe, and the part added or processed to the drain pipe can be engaged with the projection, the drain pipe is connected to the drain pipe section. When the portion added to the drainage pipe is engaged with the protrusion of the engagement ring, the drainage received by the tray portion is drained from the drainage pipe portion. Rainwater can be drained by entering the drainage pipe via the hole.
Further, a hook-like portion sandwiched between the lower surface of the tray portion and the upper end surface of the spacer, a cylindrical portion connected to the hook-like portion and in contact with the inner peripheral surface of the spacer, and the cylindrical portion. Since the protruding portion is a protruding portion, the drainage pipe is positioned, and the protruding portion rises upward from the fan-shaped portion extending horizontally from the inner peripheral surface of the cylindrical portion and the side extending in the radial direction of the fan-shaped portion. Therefore, the part added or processed to the drainage pipe engaged with the protrusion is restrained by the rising part, and the drainage pipe is not easily detached.

Prepare a drain body having a tray for receiving rain water, a drain pipe for flowing rain water, and a protrusion protruding outward from the outer peripheral surface of the drain pipe, and surround the drain pipe with a cylindrical spacer. Since the part added or processed to the drainage pipe can be engaged with the protrusion, the drainage pipe is inserted into the gap from the lower side so as to surround the drainage pipe part, When the portion added or processed to the cylindrical drainage pipe is engaged with the projection of the drain body, the drainage received by the tray is passed through the drainage hole of the drainage pipe into the drainage pipe. Can enter and drain rainwater.
In addition, since the protrusion is composed of a fan-shaped portion that extends horizontally outward from the outer peripheral surface of the drainage pipe portion and a rising portion that rises upward from a side extending in the radial direction of the fan-shaped portion, A portion added or processed to the engaged drainage pipe is restrained by the rising portion, and the drainage pipe is not easily detached.
Prepare a drain body consisting of a pan for receiving rain water and a drain pipe for flowing rain water, and having a recess or notch on the outer peripheral surface of the drain pipe, and enclose a cylindrical spacer around the drain pipe Since the part added or processed to the drainage pipe is arranged below the drain main body so that it can be engaged with the recessed part or the notch part, the drainage pipe is surrounded from the lower side so as to surround the drainage pipe part. When the portion inserted into the gap and added or processed to the cylindrical drainage pipe is engaged with the recess or notch of the drain body, the drainage received by the tray is drained by the drainage pipe It can enter drainage pipes via, and drain rainwater.
In addition, since the cutout portion has a J-shape that is an upside-down combination of a straight portion and a U shape from the lower end portion of the drainage pipe portion, the drainage pipe is surrounded by the drainage pipe portion. Thus, when inserted into the gap from the lower side, the part added or processed to the cylindrical drainage pipe is guided by the straight part of the notch part and the U-shaped part protruding upward, and the U-shaped part Engaging with the end, the drainage pipe is restrained by the drain body.

The roof drain is composed of a drain body that receives rainwater from the drain hole, a tubular spacer that is placed under the drain body, a strainer that covers the tray, a stopper member, and a mounting member. The stopper member reduces the vertical dimension. The horizontal dimension is increased and the horizontal dimension is reduced when the vertical dimension is extended, and the mounting member is twisted so that when the horizontal dimension is extended by twisting the mounting member, the drain body is caught at at least two locations. Therefore, when the mounting member is twisted to reduce the vertical dimension, the horizontal dimension is extended, and the stopper member is hooked on at least two places of the drain main body portion, so that the strainer can be fixed. When the mounting member is twisted in the opposite direction and the vertical dimension is extended, the horizontal dimension is reduced, so that the stopper member is disengaged from the hook-shaped portion, and the strainer can be removed.
Further, the stopper member has a structure in which an elastic spring member has a closed ring shape or a polygonal shape when viewed from the horizontal direction and is provided with a pair of through holes through which the mounting member penetrates in the vertical direction. Since the fixing member is fixed to the member and the mounting member is screwed, when the mounting member that is a bolt is twisted, the threaded portion moves in the vertical direction, and the elastic spring member is deformed to reduce the vertical dimension. When the horizontal dimension increases and the vertical dimension increases, the horizontal dimension shrinks.
The roof drain is composed of a drain body that receives rainwater from the drain hole, a tubular spacer that is placed under the drain body, a strainer that covers the tray, a stopper member, and a mounting member. The stopper member is screwed to one end. Since the other end of the stopper member is hooked on the drain body when the mounting member is twisted, the other end of the stopper member is the drain body portion when the mounting member is twisted. The strainer can be fixed. When the mounting member is twisted in the opposite direction, the other end portion of the stopper member is detached from the hook-shaped portion, and the strainer can be removed.

The upper part of the drain body receives a rainwater into a hole, an intermediate member with a hole, an intermediate member with a hole, and a lower member with a drain pipe part that drains the rainwater from the hole to the drainage hole. Since the edge in which the hole of the member is formed is rolled up by wrapping the edge in which the hole of the intermediate member is formed and the edge in which the hole of the lower member is formed, the drain body includes the upper member, the intermediate member, and the lower member. And the spacer forms a gap that is not filled with concrete inside, and a roof drain having a simple and lightweight structure can be manufactured.
The drain body receives the rainwater and has a saucer part that passes through the hole, and the upper member with the screw-shaped irregularities, the intermediate member with the hole, and the lower member with the drain pipe part that drains the rainwater from the hole to the drainage hole in order. The drain body has an upper structure in which the edge formed with the hole in the upper member is wound around the edge formed with the hole in the intermediate member and the edge formed with the hole in the lower member. A simple construction of a lightweight roof drain with an integrated structure consisting of a member, intermediate member and lower member, with a spacer that forms a void that is not filled with concrete inside, and a strainer that fits into a screw-like irregularity. it can.
Therefore, it is possible to provide a roof drain that can be easily laid with a simple configuration and a drain main body incorporated therein.

  The best mode for carrying out the present invention will be described below with reference to the drawings.

First, the roof drain according to the first and second embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a conceptual diagram of the roof drain according to the first embodiment of the present invention. FIG. 2 is a conceptual diagram of a roof drain according to the second embodiment of the present invention. FIG. 3 is a construction diagram of the roof drain according to the first and second embodiments of the present invention. FIG. 4 is a temporary diagram of the roof drain according to the first and second embodiments of the present invention. FIG. 5 is an AA cross-sectional view of the roof drain according to the first and second embodiments of the present invention. FIG. 6 is a temporary diagram of the drainage facility according to the first and second embodiments of the present invention. FIG. 7 is a permanent view of the roof drain according to the first and second embodiments of the present invention. FIG. 8 is a permanent drawing of the drainage facility according to the first and second embodiments of the present invention.

First, the roof drain 100 according to the first embodiment of the present invention will be described.
The roof drain 100 is embedded in a concrete floor of a building in order to drain rainwater, and includes a drain body 10, a spacer 30, a strainer 40, a stopper member 50, and an attachment member 60.
The drain main body 10 and the spacer 30 are embedded in a concrete floor surface.

The drain main body 10 receives rainwater and flows downward, and forms a tray part 11 a, a drain pipe part 13 a, an annular part 21, and a protruding part 22.
The saucer part 11a is a part which receives rainwater on the upper surface.
The drainage pipe part 13a is a tubular part provided with a drainage hole P connected to the lower part of the tray part 11a and penetrating in the vertical direction.
The annular portion 21 is a portion that surrounds the drain pipe portion 13a and is located below the tray portion 11a.
The protruding portion 22 is a portion protruding inward from the annular portion 21.

The drain body 10 may be composed of an upper member 11, an intermediate member 12, and a lower member 13.
For example, the upper member 11 is a member that forms a saucer portion 11a that is recessed downward to receive drainage, and that forms a bowl-like portion 11b that is located at the lower portion of the saucer portion 11a and is provided with a hole O.
The intermediate member 12 is a member that forms a flange portion 12a having a hole O in the center, a falling portion 12b that descends downward from the outer periphery of the flange portion 12a, an annular portion 21, and a plurality of protrusions 22.
The annular portion 21 is a portion connected to the lower surface of the bowl-shaped portion 11a. The protruding portion 22 is a portion protruding inward from the annular portion 21.
The lower member 13 is a member that forms a tubular drainage pipe portion 13a provided with drainage holes P penetrating in the vertical direction, and forms a bowl-like portion 13b provided with a hole O located above the drainage pipe portion 13a. is there.
The upper member 11, the intermediate member 12, and the lower member 13 are sequentially stacked, and the edge that forms the hole O of the upper member 11 is the edge that forms the hole O of the intermediate member 12 and the edge that forms the hole O of the lower member 13 A saddle-like edge portion G is formed, which is a saddle-like edge protruding inward. The bowl-shaped edge G may be inclined downward toward the outside.

For example, the annular portion 21 includes a flange portion 21a parallel to the outer edge of the flange portion 12a of the intermediate member 12, and a cylindrical portion 21b connected to the flange portion 21a and surrounding the drain pipe portion 13a. It may be configured. The outer peripheral surface of the cylindrical portion 21 b may be in contact with the inner peripheral surface of the spacer 30.
For example, the protrusion 22 includes a fan-shaped portion 22a that extends inward from the inner wall of the tubular portion 21b and a pair of rising portions 22b that are positioned on a pair of sides extending in the radial direction of the fan-shaped portion 22a and rise upward. The
In FIG. 5, it is shown that four projecting portions 22 project at four locations on the inner circumference of the annular portion 21.

The spacer 30 is a cylindrical member that is disposed so as to surround the outer periphery of the drain pipe portion and forms a gap H that is not filled with concrete inside.
Usually, the spacer 30 is a member made by cutting a plastic pipe (for example, a polyvinyl chloride pipe) into a predetermined length. The diameter of the spacer 30 is determined by the size of the drain body 10. The inner diameter of the gap H is larger than the diameter of the drainage pipe to be installed.

The strainer 40 is a member provided on the upper portion of the tray part 11a so as to cover the upper surface of the drainage hole P and provided with a plurality of slits or a plurality of holes.
For example, the strainer 40 includes a strainer upper portion 41 and a strainer side portion 42. The strainer upper part 41 is a circular plate material provided with a plurality of slits. The strainer side portion 42 is a cylindrical plate member having an upper end portion connected to an edge of the strainer upper portion 41.
FIG. 1 shows that the strainer 40 fits into the tray part 11 a of the drain body 10.

The stop member 50 is a member for fixing the strainer 40 to the drain main body 10.
The stop member 50 may be a member that expands in the horizontal direction when the vertical dimension is reduced, and contracts in the horizontal dimension when the vertical dimension is extended.
The stop member 50 may be composed of a spring member 51 and a screw portion 52.
For example, the spring member 51 is an elastic structural member having a closed ring shape or a polygonal shape as viewed from the horizontal direction and provided with a pair of through holes through which the mounting member passes in the vertical direction. For example, the spring member 51 is made of metal. For example, the spring member 51 is a metal thin plate.
The threaded portion is a member that is fixed to the spring member and the mounting member is screwed. For example, the screw part. A nut fixed to the spring member 51.
FIG. 1 shows a stop member 50 made of a narrow metal plate that is annular when viewed from the side.

The attachment member 60 is a bolt that passes through the stopper member 50 and the strainer 40 and changes the vertical dimension of the stopper member when twisted.
When the mounting member 60 is twisted to one side, the vertical dimension of the stopper member 50 is reduced, and the horizontal dimension is extended. When the mounting member 60 is twisted to the other side, the vertical dimension of the stopper member 50 is extended and the horizontal dimension is reduced.

Next, the roof drain 100 according to the second embodiment of the present invention will be described.
The roof drain 100 is embedded in a concrete floor of a building in order to drain rainwater, and includes a drain main body 10, an engagement ring 20, a spacer 30, a strainer 40, a stopper member 50, and a mounting member 60. Composed.
The drain main body 10, the engagement ring 20, and the spacer 30 are embedded in a concrete floor surface.
In the roof drain 100 according to the second embodiment of the present invention, since the other structures are the same except that the structure of the drain body 10 is different and the engagement ring 20 is provided, only different points will be described.
The drain main body and the coupling ring 20 of the roof drain 100 according to the second embodiment are obtained by separating the drain main body 10 of the roof drain 100 according to the first embodiment into two parts.

The drain main body 10 receives rainwater and flows downward, and forms a tray part 11a and a drain pipe part 13a.
The saucer part 11a is a part which receives rainwater on the upper surface.
The drainage pipe part 13a is a tubular part provided with a drainage hole connected to the lower part of the tray part and penetrating in the vertical direction.

The drain body 10 may be composed of an upper member 11, an intermediate member 12, and a lower member 13.
For example, the upper member 11 is a member that forms a saucer portion 11a that is recessed downward to receive drainage, and that forms a bowl-like portion 11b that is located in the lower portion of the saucer portion and is provided with a hole O.
The intermediate member 12 is a member that forms a flange-shaped portion 12a provided with a hole O in the center and an edge facing downward on the outer periphery, and a falling portion 12b that descends downward from the outer periphery of the flange-shaped portion 12a. The inner peripheral surface of this cylindrical part may be in contact with the outer peripheral surface of the spacer 30.
The lower member 13 forms a tubular drainage pipe portion 13a provided with drainage holes P penetrating in the vertical direction, and is a member that forms a bowl-like portion 13b provided with a hole O located above the drainage pipe portion 13a. It is.
The upper member 11, the intermediate member 12, and the lower member 13 are sequentially stacked, and the edge that forms the hole O of the upper member 11 is the edge that forms the hole O of the intermediate member 12 and the edge that forms the hole O of the lower member 13 A saddle-like edge G, which is an edge protruding inward, is formed. The bowl-shaped edge G may be inclined downward along the inside from the outside.

The coupling ring 20 is a member that is combined with the drain main body 10 and the spacer 30 and is embedded in a concrete floor surface of a building in order to drain rainwater.
The coupling ring has a structure that forms the annular portion 21 and the protruding portion 22.
The annular portion 21 is a portion that surrounds the drain pipe portion 13a and is located below the tray portion 11a.
The protruding portion 22 is a portion protruding inward from the annular portion.

For example, the annular portion 21 is formed by a flange-shaped portion 21a sandwiched between the lower surface of the tray portion 11a and the upper end surface of the spacer 30, and a cylindrical portion 21b connected to the flange-shaped portion 21a and surrounding the drain pipe portion 13a. It may be configured. The cylindrical part 21b may contact the inner peripheral surface of the spacer.
For example, the protrusion 22 is composed of a fan-shaped portion 22a that expands inward if the inner wall of the tubular portion 21b and a pair of rising portions 22b that are located on a pair of sides extending in the radial direction of the fan-shaped portion 22a and rise upward. The
In FIG. 5, it is shown that four projecting portions 22 project at four locations on the circumference of the annular portion 21.

Next, a roof drain construction method according to the first and second embodiments will be described with reference to the drawings, using the roof drain according to the second embodiment as an example.
To construct the roof drain 100, a jig 70 is used.
The jig 70 includes a positioning plate 71, a male screw rod 72, a closing plate 73, a wing nut 74, and a wood screw 75.
The positioning plate 71 is composed of a circular plate member having an outer diameter slightly smaller than the inner diameter of the spacer 30 and a nut fixed at the center. For example, the positioning plate 71 is made of metal.
The male threaded rod 72 is a threaded rod that is screwed into the nut of the positioning plate 71.
The closing plate 73 is a plate for temporarily closing the saucer portion 11 a of the drain body 10.
The butternut 74 is a nut with a butterfly-type knob that can be screwed into the male threaded rod.
The wood screw 75 is a screw for fixing the positioning plate 71 to the mold 210.

The construction method will be described along the procedure.
(Procedure 1)
The positioning plate 71 is placed at a position where the roof drain of the mold 210 is installed, and a wood screw 75 is driven. The male screw rod 72 is screwed into the nut of the positioning plate 71.
(Procedure 2)
The spacer 30 is cut into a predetermined length and fitted into the positioning plate 71.
(Procedure 3)
The drain body 10 and the engagement ring 20 are fitted on the spacer 30. The closing plate 73 is placed on the drain body 10, and the butterfly nut 74 is screwed into the male screw rod to fix the closing plate 73.
(Procedure 4)
Concrete is poured onto the mold 210 to form the floor surface 200.
(Procedure 5)
When the concrete is solidified, the mold 210 and the jig 70 are removed.

Next, the method of temporary drainage of the roof drain according to the first and second embodiments of the present invention will be described based on the drawings.
A plastic tube (for example, a PVC tube) is cut to a predetermined length, and an appendage 82 is added to the top. A flexible hose 83 is attached to the lower part to make a pipe. This pipe is called a temporary drain pipe. For example, the appendage 82 is a plurality of bolt-like members fixed to the outer periphery of the temporary drain pipe.
The temporary drainage pipe 80 is inserted into the gap H from below so as to surround the drainage pipe part 13 a, and the appendage 82 is hooked on the protrusion 22.
The lower end of the flexible hose 83 is guided outdoors.
In this way, when rainwater falls on the floor surface, the rainwater is guided to the drainage groove 220, enters the full drain 10, and is drained to the outside by the temporary drainage pipe 80.

Next, the main drainage method of the roof drain 10 according to the first and second embodiments of the present invention will be described with reference to the drawings.
The strainer 40, the stop member 50, and the mounting member 60 are combined as described above.
The mounting member 60 is twisted to increase the vertical dimension of the stopper member 50 and reduce the horizontal dimension.
The strainer 40, the stopper member 50, and the attachment member 60 are inserted into the tray part 11a. The stop member 50 enters the drain hole P.
The mounting member 60 is twisted to reduce the vertical dimension of the stop member 50 and extend the horizontal dimension.
The stop member 50 is hooked on the drain body 10 and the strainer 40 is fixed.
For example, the stop member 50 is caught on the bowl-shaped edge G of the drain body 10, and the strainer 40 is fixed.
The main distribution pipe 230 is inserted into the gap H from below so as to surround the drain pipe section 13a.
The water distribution pipe 230 is fixed to the eaves 240.
In this way, when rainwater falls on the floor surface, the rainwater is guided to the drainage groove 220 and enters the roof drain 100. Rainwater that has entered the roof drain 100 is guided to the main distribution pipe 230, enters the gutter 240, and is drained to the sewer groove 250.

Next, a roof drain according to a third embodiment of the present invention will be described with reference to the drawings.
FIG. 9 is a temporary view of the roof drain according to the third embodiment of the present invention. FIG. 10 is a BB cross-sectional view of the roof drain according to the third embodiment of the present invention.
The roof drain 100 is embedded in a concrete floor of a building in order to drain rainwater, and includes a drain body 10, a spacer 30, a strainer 40, a stopper member 50, and an attachment member 60.
The drain main body 10 and the spacer 30 are embedded in a concrete floor surface.
In the roof drain 100 according to the third embodiment of the present invention, since the other structures are the same except that the structure of the drain body 10 is different, only different points will be described.

The drain main body 10 receives rain water and flows downward, and forms a tray portion 11a, a drain pipe portion 13a, and a protruding portion 13c.
The saucer part 11a is a part which receives rainwater on the upper surface.
The drainage pipe part 13a is a tubular part provided with a drainage hole connected to the lower part of the tray part and penetrating in the vertical direction.
The protruding portion 13c is a portion protruding outward from the outer peripheral surface of the drain pipe portion 13a.
The protrusion 13c may be formed of a fan-shaped portion that extends horizontally from the outer peripheral surface of the drain pipe portion 13a and a rising portion 13d that rises upward from a side extending in the radial direction of the fan-shaped portion.
FIG. 10 shows that four protrusions 13c are provided on the outer peripheral surface of the drain pipe 13a.

The drain body 10 may be composed of an upper member 11, an intermediate member 12, and a lower member 13.
For example, the upper member 11 is a member that forms a saucer part 11a that is recessed downward to receive drainage, and that forms a bowl-like part 11b that is provided with a hole O in the lower part of the saucer part 11a.
The intermediate member 12 is a member that forms a flange-shaped portion 12a provided with a hole O in the center and an edge facing downward on the outer periphery and a falling portion 12b that descends downward from the outer periphery of the flange-shaped portion 12a.
The lower member 13 forms a tubular drain pipe portion 13a provided with a drain hole penetrating in the vertical direction, forms a bowl-like portion 13b provided with a hole O in the upper portion of the drain pipe portion 13a, and discharge pipe portion It is a member which forms the protrusion part 13c in the outer surface of 13a.
The upper member 11, the intermediate member 12, and the lower member 13 are sequentially stacked, and the edge that forms the hole O of the upper member 11 is the edge that forms the hole O of the intermediate member 12 and the edge that forms the hole O of the lower member 13 A saddle-like edge G which is a saddle-like edge extending inward is formed. The bowl-shaped edge G may be inclined downward along the inside from the outside.

  Since the roof drain construction method according to the third embodiment of the present invention is the same as the roof drain construction method according to the first and second embodiments, the description thereof will be omitted.

Next, a method for temporarily draining a roof drain according to a third embodiment of the present invention will be described with reference to the drawings.
A plastic tube (for example, a PVC tube) is cut to a predetermined length, and an appendage 82 is added to the top. A flexible hose 83 is attached to the lower part to make a pipe. This pipe is called a temporary drain pipe. For example, the appendage 82 is a member having an inverted L-shaped cross section fixed to the upper part of the temporary drainage pipe.
The temporary drainage pipe 80 is inserted into the gap H from the lower side so as to surround the drainage pipe part 13a, and the appendage 82 is hooked on the protruding part 13c.
The lower end of the flexible hose 83 is guided outdoors.
In this way, when rainwater falls on the floor surface, the rainwater is guided to the drainage groove 220, enters the full drain 10, and is drained to the outside by the temporary drainage pipe 80.

  Since the main drainage method of the roof drain 10 according to the third embodiment of the present invention is the same as the main drainage method of the roof drain according to the first and second embodiments, the description thereof is omitted.

Next, a roof drain according to a fourth embodiment of the present invention will be described with reference to the drawings.
FIG. 11 is a temporary diagram of the roof drain according to the fourth embodiment of the present invention. FIG. 12 is a CC cross-sectional view of a roof drain according to the fourth embodiment of the present invention.
The roof drain 100 is embedded in a concrete floor of a building in order to drain rainwater, and includes a drain body 10, a spacer 30, a strainer 40, a stopper member 50, and an attachment member 60.
The drain main body 10 and the spacer 30 are embedded in a concrete floor surface.
The roof drain 100 according to the fourth embodiment of the present invention is the same as that described above except that the structure of the drain body 10 is different.

The drain main body 10 receives rainwater and flows downward, and forms a tray part 11a, a drain pipe part 13a, and a recessed part or a notch part 13d.
The saucer part 11a is a part which receives rainwater on the upper surface.
The drainage pipe part 13a is a tubular part provided with a drainage hole connected to the lower part of the tray part and penetrating in the vertical direction.
A recess or notch 13d is provided in the drain pipe.
For example, the cutout portion 13d has a straight portion extending upward from the lower end portion of the drain pipe portion and a U-shaped portion projecting upward connected to the upper end of the straight portion. That is, the notch 13d has a J-shaped notch that is upside down.

The drain body 10 may be composed of an upper member 11, an intermediate member 12, and a lower member 13.
For example, the upper member 11 is a member that forms a saucer part 11a that is recessed downward to receive drainage, and that forms a bowl-like part 11b that is provided with a hole O in the lower part of the saucer part 11a.
The intermediate member 12 is a member that forms a flange-shaped portion 12a provided with a hole O in the center and an edge facing downward on the outer periphery, and a falling portion 12b that descends from the outer periphery of the flange-shaped portion 12a.
The lower member 13 forms a tubular drain pipe portion 13a provided with a drain hole penetrating in the vertical direction, forms a bowl-like portion 13b provided with a hole O in the upper portion of the drain pipe portion 13a, and discharge pipe portion This is a member formed with a recess or notch 13d.
The upper member 11, the intermediate member 12, and the lower member 13 are sequentially stacked, and the edge that forms the hole O of the upper member 11 is the edge that forms the hole O of the intermediate member 12 and the edge that forms the hole O of the lower member 13 A saddle-like edge portion G that is a saddle-like edge extending inward is formed. The bowl-shaped edge G is inclined downward along the outside.

  Since the roof drain construction method according to the fourth embodiment of the present invention is the same as the roof drain construction method according to the first and second embodiments, the description thereof is omitted.

Next, a method for temporarily draining a roof drain according to a fourth embodiment of the present invention will be described with reference to the drawings.
A plastic pipe (for example, a vinyl chloride pipe) is cut to a predetermined length, an appendage 82 is added to the upper part, and a flexible hose 83 is attached to the lower part to make a pipe. This pipe is called a temporary drain pipe.
For example, the appendage 82 is a rod-shaped member 84 that penetrates the side of the pipe.
The temporary drainage pipe 80 is inserted into the gap H from below so as to surround the drainage pipe part 13a, and the additional product 82 is hooked on the cutout part 13d.
The lower end of the flexible hose 83 is guided outdoors.
In this way, when rainwater falls on the floor surface, the rainwater is guided to the drainage groove 220, enters the full drain 10, and is drained to the outside by the temporary drainage pipe 80.

  Since the main draining method of the roof drain 100 according to the fourth embodiment of the present invention is the same as the main draining method of the roof drain according to the first and second embodiments, the description thereof is omitted.

Next, a roof drain according to a fifth embodiment of the present invention will be described with reference to the drawings.
FIG. 13 is a permanent view of a roof drain according to the fifth embodiment of the present invention.
The roof drain 100 is embedded in a concrete floor of a building in order to drain rainwater, and includes a drain body 10, a spacer 30, a strainer 40, a stopper member 50, and an attachment member 60.
The drain main body 10 and the spacer 30 are embedded in a concrete floor surface.
In the roof drain 100 according to the fifth embodiment of the present invention, except for the difference in the structure of the stopper member 50, the other structures are the same as those described above, so only the differences will be described.

The stop member 50 is a member for fixing the strainer 40 to the tray part 11a.
The stop member 50 may be a member that expands in the horizontal direction when the vertical dimension is reduced, and contracts in the horizontal dimension when the vertical dimension is extended.
The stop member 50 may be composed of a spring member 53 and a screw portion 52.
The spring member 53 has a hexagonal shape when viewed from the horizontal direction, is provided with a protrusion at a corner corresponding to the horizontal direction, and a pair of through holes through which the mounting member passes in the vertical direction on the sides facing the vertical direction. This is an elastic structural member. For example, the spring member 53 includes an upper side 53a, a pair of left and right upper oblique sides 53b, a pair of left and right projections 53c, a pair of left and right lower oblique sides 53d, and a lower side 53e that are connected to each other. Through holes are provided in the upper side 53a and the lower side 53e. For example, the spring member 51 is made of metal. For example, the spring member 51 is a metal thin plate.
The threaded portion is a member that is fixed to the spring member and the mounting member is screwed. For example, the screw part. It is a nut welded to the lower side 53e.

The attachment member 60 is a bolt that penetrates the stopper member 50 and the strainer 40 and changes the vertical dimension of the stopper member when twisted.
When the attachment member 60 is twisted to one side, the upper side 53a and the lower side 53e of the stopper member 50 approach each other, the size in the lower direction is reduced, the size in the horizontal direction is extended, and the protrusion 53c is caught by the hook-like edge G. When the mounting member 60 is twisted to the other side, the upper side 53a and the lower side 53e are separated from each other, the vertical dimension of the stopper member 50 is extended, and the horizontal dimension is reduced.
In FIG. 13, the solid line and the two-dot broken line indicate how the stopper member 50 is deformed.

  Since the roof drain construction, temporary drainage, or main drainage method according to the fifth embodiment of the present invention is the same as the roof drain construction method according to the first and second embodiments, the description thereof is omitted.

Next, a roof drain according to a sixth embodiment of the present invention will be described with reference to the drawings.
FIG. 14 is a permanent view of the roof drain according to the sixth embodiment of the present invention.
The roof drain 100 is embedded in a concrete floor of a building in order to drain rainwater, and includes a drain body 10, a spacer 30, a strainer 40, a stopper member 50, and an attachment member 60.
The drain main body 10 and the spacer 30 are embedded in a concrete floor surface.
In the roof drain 100 according to the sixth embodiment of the present invention, except for the difference in the structure of the stopper member 50, the other structures are the same as those described above, so only the differences will be described.

The stop member 50 is a member for fixing the strainer 40 to the tray part 11a.
The stop member 50 may be a member that expands in the horizontal direction when the vertical dimension is reduced, and contracts in the horizontal dimension when the vertical dimension is extended.
The stop member 50 may be composed of a spring member 54 and a screw portion 52.
The spring member 54 is an elastic structural member having a hexagonal shape when viewed from the horizontal direction and provided with a pair of through-holes through which the attachment member penetrates in the vertical direction on the sides facing the vertical direction. For example, the spring member 54 includes an upper side 54a, a pair of left and right upper oblique sides 54b, a pair of left and right lower oblique sides 54c, and a lower side 54d. Through holes are provided in the upper side 54a and the lower side 54d. For example, the spring member 54 is made of metal. For example, the spring member 54 is a thin metal plate.
The threaded portion is a member that is fixed to the spring member and the mounting member is screwed. For example, the screw part. A nut welded to the lower side 54d.

The attachment member 60 is a bolt that penetrates the stopper member 50 and the strainer 40 and changes the vertical dimension of the stopper member when twisted.
When the mounting member 60 is twisted to one side, the upper side 54a and the lower side 54d of the stopper member 50 approach each other, the size in the lower direction is reduced, the size in the horizontal direction is extended, and the lower part of the upper oblique side 54b is the bowl-shaped edge G. Get caught in. When the mounting member 60 is twisted to the other side, the upper side 54a and the lower side 54d are separated from each other, the vertical dimension of the stopper member 50 is extended, and the horizontal dimension is reduced.
In FIG. 14, the solid line and the two-dot broken line indicate how the stopper member 50 is deformed.

  Since the roof drain construction method, temporary drainage method or main drainage method according to the sixth embodiment of the present invention is the same as the roof drain construction method according to the first and second embodiments, the description thereof will be omitted.

Next, a roof drain according to a seventh embodiment of the present invention will be described with reference to the drawings.
FIG. 15 is a permanent view of the roof drain according to the seventh embodiment of the present invention.
The roof drain 100 is embedded in a concrete floor of a building in order to drain rainwater, and includes a drain body 10, a spacer 30, a strainer 40, a stopper member 50, and an attachment member 60.
The drain main body 10 and the spacer 30 are embedded in a concrete floor surface.
In the roof drain 100 according to the seventh embodiment of the present invention, the other structure is the same as that described above except that the structure of the stopper member 50 is different. Therefore, only the different points will be described.

The stop member 50 is a member for fixing the strainer 40 to the tray part 11a.
The stop member 50 may be a rod-like member having a threaded portion at one end.
For example, the stop member 50 may be composed of a pair of rod-like members 55.
The rod-like member 55 has a zigzag shape when viewed from the horizontal direction, and is provided with a female screw at one end.
For example, the rod-like structure 55 includes an upper side 55a, an upper oblique side 55b, and a lower side 55c that are connected in a zigzag manner. A female screw is provided on the upper side 55a. For example, the rod-shaped member 55 is made of metal.

The attachment member 60 is a bolt that penetrates the stopper member 50 and the strainer 40 and changes the vertical dimension of the stopper member when twisted.
When the mounting member 60 is twisted to one side, the upper side 55a comes into contact with the strainer 40, and the lower side 55c is caught on the bowl-shaped edge G.
In FIG. 15, the solid line and the two-dot broken line indicate how the stop member moves.

  The roof drain construction, temporary drainage, or main drainage method according to the seventh embodiment of the present invention is the same as the roof drain construction method according to the first and second embodiments, and thus the description thereof is omitted.

Next, a roof drain according to an eighth embodiment of the present invention will be described with reference to the drawings.
FIG. 16 is a temporary diagram of the roof drain according to the eighth embodiment of the present invention. FIG. 17 is a permanent view of the roof drain according to the eighth embodiment of the present invention.
The roof drain 100 is embedded in a concrete floor of a building in order to drain rainwater, and includes a drain body 10, a spacer 30, a strainer 40, and an external member cover 90.
The drain main body 10 and the spacer 30 are embedded in a concrete floor surface.
The roof drain 100 according to the eighth embodiment of the present invention has an outer member cover 90, and the other structures are the same as those described above except that the structures of the drain body 10 and the strainer 40 are different. Only the point will be described.

The drain main body 110 receives rainwater and flows downward. The drain main body 110 forms a tray portion 11 a, a drain pipe portion 13 a, an annular portion 21, and a protruding portion 22, and the upper member 11, the intermediate member 12, and the lower member 13 Composed.
Except for the structure of the upper member 11, the other structures are the same.
The upper member 11 is formed with a saucer portion 11a that is recessed downward to receive rainwater, and has a bowl-like portion 11b that is located at the bottom of the saucer portion 11a and has a hole O in the center. It is a member to do.
For example, as for the saucer part 11a, the dent along the locus | trajectory extended spirally inside a side surface is provided.

The outer member cover 90 is a member provided with unevenness that covers at least the inner surface of the upper member 11 and fits into the screw-shaped unevenness of the tray portion 11a.
The outer member cover 90 has substantially the same shape as the inner shape of the upper member 11 on the outside.
The outer member cover 90 may be made of metal or resin.
For example, the outer member cover 90 is a resin film applied so as to cover at least the inner surface of the upper member 11.

The strainer 40 is a member provided with a plurality of slits or a plurality of holes arranged on the upper part of the tray part 11a so as to cover the upper surface of the drain hole P, and provided with irregularities that fit into the screw-shaped irregularities of the tray part 11a. It is.
For example, the strainer 40 includes a strainer upper portion 41 and a strainer side portion 42. The strainer upper part 41 is a circular plate material provided with a plurality of slits. The strainer side portion 42 is a cylindrical plate member having an upper end connected to the edge of the strainer upper portion 41 and provided with irregularities that fit into the screw-shaped irregularities of the tray portion 11a.

The roof drain construction, temporary drainage or main drainage method according to the eighth embodiment of the present invention is substantially the same as the roof drain construction method according to the first and second embodiments, so only the differences will be described. Other explanations are omitted.
First, a method for temporarily draining a roof drain according to an eighth embodiment of the present invention will be described.
An upper member cover 80 is fitted to the upper member 11.
When dust enters the tray part 11a during construction of the building, it adheres to the upper member cover 80.
Therefore, the portion of the drain body that receives rainwater is not soiled.
When the installation work for the main drainage of the building starts, the upper member cover 80 is removed.

Next, a method for main drainage of the roof drain according to the eighth embodiment of the present invention will be described.
The strainer 40 is fitted and fixed to the unevenness provided along the locus extending in a spiral manner on the side surface of the upper member.
For example, the strainer 40 is screwed into the screw-like unevenness of the upper member.

Moreover, as described above, the storage body according to the present invention has the following effects depending on the configuration.
With the structure of the roof drain according to the first embodiment of the present invention, a tray 11a for receiving rainwater, a drain pipe 13a for flowing rainwater, an annular portion 21 located under the tray, and an inward projection from the annular portion 21 The drain body 10 having the projecting portion 22 is prepared, the cylindrical spacer 30 is disposed under the drain body 10 so as to surround the drain pipe portion 13a, and the additional product 82 added to the temporary drain pipe 80 is Since the protrusion 22 can be engaged, the drainage pipe 60 is inserted into the gap H from the lower side so as to surround the drainage pipe part 13a, and the appendage 82 is inserted into the cylindrical temporary drainage pipe 80. If it engages with 22, the drainage received by the saucer part 11a will enter into the temporary drainage piping 80 via the drainage hole P of the drainage pipe part 13a, and rainwater can be drained.
Further, the protrusion 22 is configured by a fan-shaped portion 22a that horizontally extends from the inner peripheral surface of the annular portion 21 and a pair of rising portions 22b that rise upward from a pair of sides extending in the radial direction of the fan-shaped portion 22a. Therefore, the additional material 82 added to the temporary drainage pipe 80 engaged with the protrusion 22 is restrained by the rising portion 22b, and the temporary drainage pipe 80 is difficult to come off.

With the structure of the roof drain according to the second embodiment of the present invention, the drain main body 10 having the tray part 11a for receiving rain water and the drain pipe part 13a for flowing rain water and the drain pipe part 13a are surrounded by the bottom of the drain main body 10. An engagement ring composed of a cylindrical spacer 30 disposed on the annular portion 21, an annular portion 21 positioned below the tray portion 11 a, and a protruding portion 22 projecting inwardly from the annular portion 21, is prepared. Since the additional material 82 added to 80 can be engaged with the protrusion 22, the temporary drainage pipe 80 is inserted into the gap H from below so as to surround the drainage pipe part 13 a, and the temporary drainage pipe 80 is inserted. When the adjunct 82 is engaged with the protrusion 22 of the engagement ring, the drainage received in the tray part 11a enters the temporary drainage pipe 80 via the drainage hole P of the drainage pipe part 13a. Can drain.
In addition, the engagement portion 20 is sandwiched between the lower surface of the tray portion 11a and the upper end surface of the spacer 30, and the tubular portion 21b and the tubular portion are in contact with the inner peripheral surface of the spacer. Since the projection 22 protrudes from 21b, the drainage pipe is positioned, and the projection 22 is horizontally extended from the inner peripheral surface of the cylindrical portion 21b to the inside. Since it is made up of a pair of rising portions 22b rising upward from the sides, the drainage pipe additions 82 engaged with the projections 22 are restrained by the rising portions 22b, and the drainage piping is unlikely to come off. Become.

According to the roof drain structure according to the third embodiment of the present invention, a drain having a tray part 11a for receiving rainwater, a drain pipe part 13a for flowing rain water, and a protruding part 13c protruding outward from the outer peripheral surface of the drain pipe part. A main body 10 is prepared, and a cylindrical spacer 30 is disposed under the drain main body 10 so as to surround the drain pipe portion 13a so that a portion 82 added to the temporary drain pipe 80 can be engaged with the projection 13c. Therefore, when the temporary drainage pipe 80 is inserted into the gap H from the lower side so as to surround the drainage pipe part 13a, the portion 82 added to the temporary drainage pipe 80 is engaged with the protrusion 13c of the drain body 10. The drainage received by the tray part 11a enters the temporary drainage pipe 80 via the drainage hole P of the drainage pipe part 13a and drains rainwater.
In addition, the protrusion 13c is composed of a fan-shaped portion extending horizontally from the outer peripheral surface of the drain pipe portion 13a and a pair of rising portions 13d rising upward from a pair of sides extending in the radial direction of the fan-shaped portion. The additional portion 82 is constrained by the rising portion 13d to the temporary drainage pipe 80 engaged with the protrusion 13c, and the temporary drainage pipe 80 is difficult to come off.

According to the structure of the roof drain according to the fourth embodiment of the present invention, the drain is configured by a tray 11a for receiving rainwater and a drain pipe 13a for flowing rain water, and a notch 13d is provided on the outer peripheral surface of the drain pipe 13a. Since the main body was prepared, the cylindrical spacer 30 was disposed under the drain main body so as to surround the drain pipe portion 13a, and the portion 82 processed into the temporary drain pipe 80 could be engaged with the notch portion 13d. When the temporary drainage pipe 80 is inserted into the gap H from the lower side so as to surround the drainage pipe part 13a, the portion 82 added to the temporary drainage pipe 80 is engaged with the cutout part 13d of the drain body 10. The drainage received by the tray part 11a enters the temporary drainage pipe 80 via the drainage hole P of the drainage pipe part 13a and drains rainwater.
In addition, since the cutout portion 13d is a J-shape that is an upside-down combination of a straight portion and a U-shape upward from the lower end portion of the drainage pipe portion, and the appendage is a rod-like member that penetrates the temporary drainage pipe 80, When the temporary drainage pipe 80 is inserted into the gap H from the lower side so as to surround the drainage pipe part 13a, the portion 82 added to the temporary drainage pipe 80 protrudes upward from the straight part of the notch 13d. Guided by the character part and engaged with the end of the U-character part, the drainage pipe is restrained by the drain body.

According to the structure of the roof drain according to the first to sixth embodiments of the present invention, the drain main body 10 that receives the rainwater from the drain hole O and receives the rainwater 100, the tubular spacer 30 disposed under the drain main body 10, and the tray The strainer 40, the stopper member 50, and the mounting member 60 are placed over the portion, and when the vertical dimension of the stopper member 50 is reduced, the horizontal dimension is increased, and when the vertical dimension is extended, the horizontal dimension is reduced. Since the retaining member 50 is twisted by twisting the mounting member 60 to extend the horizontal dimension, it is caught in at least two places of the bowl-shaped edge G.
When the mounting member 60 is twisted to reduce the vertical dimension, the horizontal dimension is extended, and the stop member is hooked at at least two places on the hook-shaped edge G, so that the strainer 40 can be fixed. When the mounting member 60 is twisted in the opposite direction and the vertical dimension is extended, the horizontal dimension is reduced, and the stopper member is disengaged from the bowl-shaped edge G, so that the strainer 40 can be removed.
Further, the stopper 50 material has a structure in which a pair of through holes through which the attachment member 60 penetrates in the up and down direction is provided in which the elastic spring member 51 is in a closed or polygonal shape when viewed in the horizontal direction,
Since the threaded portion 52 is fixed to the spring member 51 and the mounting member 60 is screwed into the threaded portion 52, when the mounting member 60, which is a bolt, is twisted, the threaded portion 52 moves up and down, and an elastic spring When the member 51 is deformed and the vertical dimension is reduced, the horizontal dimension is extended, and when the vertical dimension is extended, the horizontal dimension is reduced.

  With the structure of the roof drain according to the seventh embodiment of the present invention, the roof drain 100 is covered with the drain main body 10 that receives rainwater and flows from the drain hole P, the tubular spacer 30 disposed under the drain main body 10 and the tray portion. The strainer 40, the stop member 50, and the attachment member 60 are configured to have a rod-like structure 55 in which the screw portion 52 is provided at one end, and when the attachment member 60 is twisted, the other end portion of the stop member 50. Is hooked to the hook-shaped edge G, and when the mounting member 60 is twisted, the other end of the stopper member 50 is hooked to the hook-shaped edge G, and the strainer 40 can be fixed. When the mounting member 60 is twisted in the opposite direction, the other end portion of the stopper member 50 is detached from the hook-shaped edge portion G, and the strainer 40 can be removed.

  According to the structure of the roof drain according to the first to seventh embodiments of the present invention, the drain member 10 receives the rain water and receives the rain water into the hole, the upper member 11 having the saucer portion 11a, the intermediate member 12 having the hole O, and the rain water. The lower member 13 having a drain pipe portion that passes from the hole to the drain hole is stacked in order, and the edge that forms the hole of the upper member forms the edge that forms the hole of the intermediate member, and the edge that forms the hole of the lower member The drain main body 10 is integrated with the upper member 11, the intermediate member 12, and the lower member 13, and the spacer 30 is not filled with concrete inside. H can be formed, and a roof drain having a simple and lightweight structure can be manufactured.

According to the structure of the roof drain according to the eighth embodiment of the present invention, the drain member 10 receives the rain water and receives the rain water into the hole, the upper member 11 having the tray portion 11a, the intermediate member 12 having the hole O, and the rain water through the hole O. The lower member 13 having the drain pipe portion extending from the drainage hole to the drainage hole is sequentially stacked, and the edge where the hole O of the upper member 11 forms the hole O of the intermediate member 12 and the hole O of the lower member 13 Since the upper member cover 90 covers the inner side of the upper member 11, the drain body has an integrated structure of the upper member, the intermediate member, and the lower member, and the spacer is formed. A void that is not filled with concrete is formed on the inside, and the inside of the upper member 11 can be prevented from becoming dirty, and a roof drain having a simple and lightweight structure can be manufactured.
Further, since the upper member cover 90 is fitted to the screw-like irregularities provided on the side of the tray part 11a of the upper member 11, the upper member cover 90 can be fixed to the drain body 10 and can be easily drained. It can be separated from the main body 10.
In addition, since the strainer 40 is fitted to the screw-like unevenness provided on the side of the tray portion 11a of the upper member 11, the strainer 40 can be fixed to the drain body 10 and easily separated from the drain body 10. it can.

The present invention is not limited to the embodiments described above, and various modifications can be made without departing from the scope of the invention.
The engagement ring described as the embodiment of the present invention may be combined with a conventional cast drain body. For example, FIG. 18 is a temporary diagram of a roof drain according to the ninth embodiment of the invention.
The stop member described as the embodiment of the present invention may be combined with a conventional cast drain body. For example, FIG. 19 is a permanent view of a roof drain according to the tenth embodiment of the present invention.

It is a conceptual diagram of the roof drain which concerns on 1st embodiment of this invention. It is a conceptual diagram of the roof drain which concerns on 2nd embodiment of this invention. It is a construction drawing of the roof drain which concerns on 1st, 2nd embodiment of this invention. It is a temporary figure of the roof drain which concerns on 1st, 2nd embodiment of this invention. It is AA sectional drawing of the roof drain which concerns on 1st, 2nd embodiment of this invention. It is a temporary figure of the drainage equipment concerning the first and second embodiments of the present invention. It is a permanent installation of the roof drain which concerns on 1st, 2nd embodiment of this invention. It is a permanent installation of the drainage equipment concerning the 1st and 2nd embodiment of the present invention. It is a temporary figure of the roof drain which concerns on 3rd embodiment of this invention. It is BB sectional drawing of the roof drain which concerns on 3rd embodiment of this invention. It is a temporary figure of the roof drain which concerns on 4th embodiment of this invention. It is CC sectional drawing of the roof drain which concerns on 4th embodiment of this invention. It is a permanent installation of the roof drain which concerns on 5th embodiment of this invention. It is a permanent drawing of the roof drain which concerns on 6th embodiment of this invention. It is a permanent installation of the roof drain which concerns on 7th embodiment of this invention. It is a temporary figure of the roof drain which concerns on 8th embodiment of this invention. It is a permanent installation of the roof drain which concerns on 8th embodiment of this invention. It is a temporary figure of the roof drain which concerns on 9th embodiment of this invention. It is a permanent installation of the roof drain which concerns on 10th embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 Roof drain 200 Floor surface 210 Formwork 220 Drainage groove 230 Main water distribution pipe 240 下 250 Sewage ditch O Hole P Drainage hole H Gap G Cage-like edge 10 Drain body 11 Upper member 11a Sauce part 11b Cage-like part 12 Intermediate member 12a Hook-shaped portion 12b Falling portion 13 Lower member 13a Drain pipe portion 13b Hook-shaped portion 20 Engagement ring 21 Annular portion 21a Hook-shaped portion 21b Cylindrical portion 22 Projection portion 22a Fan-shaped portion 22b Rising portion 30 Spacer 40 Strainer 41 Strainer Upper part 42 Strainer side part 50 Stopping member 51 Spring member 52 Thread part 60 Mounting member 70 Jig 71 Positioning plate 72 Male threaded rod 73 Blocking plate 74 Cone nut 75 Wood screw 80 Temporary drainage piping 81 Piping 82 Addition 83 Flexible hose 84 Rod-shaped member 90 Upper member cover

Claims (18)

A roof drain embedded in a concrete floor of a building to drain rainwater,
A saucer part for receiving rain water on the upper surface, a tubular drain pipe part connected to the lower part of the saucer part and provided with a drain hole penetrating in the vertical direction, and an annular part located below the saucer part surrounding the drain pipe part And a drain body that forms a protruding portion protruding inward from the annular portion,
A cylindrical spacer that is disposed so as to surround the outer periphery of the drain pipe part and forms a void that is not filled with concrete inside,
With
A portion added to or processed in a cylindrical drainage pipe inserted into the gap from the lower side so as to surround the drainage pipe part is engageable with the protrusion.
A roof drain characterized by that. The protrusion has a fan-shaped portion that extends horizontally inward from the inner peripheral surface of the annular portion and a rising portion that rises upward from a side extending in the radial direction of the fan-shaped portion.
The roof drain according to claim 1. A drain main body that forms a receiving part that receives rainwater on the upper surface for draining rainwater, and a tubular drainage pipe part that is connected to the lower part of the receiving part and has a drainage hole penetrating in the vertical direction. An engagement ring that is a member that is embedded in a concrete floor surface of a building in combination with a cylindrical spacer that is arranged so as to surround the outer periphery and forms a gap that is not filled with concrete inside,
A structure that forms an annular portion that surrounds the drain pipe portion and is located below the tray portion and a protruding portion that protrudes inward from the annular portion;
A portion added to or processed in a cylindrical drainage pipe inserted into the gap from the lower side so as to surround the drainage pipe part is engageable with the protrusion.
An engagement ring characterized by that. The annular part has a hook-like part sandwiched between the lower surface of the saucer part and the upper end surface of the spacer, and a cylindrical part connected to the hook-like part and in contact with the inner peripheral surface of the spacer;
The protrusion has a fan-shaped portion that extends horizontally inward from the inner peripheral surface of the cylindrical portion and a rising portion that rises upward from a side extending in the radial direction of the fan-shaped portion.
The engagement ring according to claim 3. A roof drain embedded in a concrete floor of a building to drain rainwater,
A tray receiving portion that receives rainwater on the upper surface, a tubular drain pipe portion that is connected to the lower portion of the tray portion and has a drain hole penetrating in the vertical direction, and a protruding portion that protrudes outward from the outer peripheral surface of the drain pipe portion are formed. Drain body to be
A cylindrical spacer that is disposed so as to surround the outer periphery of the drain pipe part and forms a void that is not filled with concrete inside,
With
A portion added to or processed in a cylindrical drainage pipe inserted into the gap from the lower side so as to surround the drainage pipe part is engageable with the protrusion.
A roof drain characterized by that. The protrusion has a fan-shaped portion that extends horizontally from the outer peripheral surface of the drain pipe portion and a rising portion that rises upward from a side extending in the radial direction of the fan-shaped portion.
The roof drain according to claim 5. A drain body that is combined with a cylindrical spacer to drain rainwater and embedded in a concrete floor of a building,
A tray receiving portion that receives rainwater on the upper surface, a tubular drain pipe portion that is connected to the lower portion of the tray portion and has a drain hole penetrating in the vertical direction, and a protruding portion that protrudes outward from the outer peripheral surface of the drain pipe portion are formed. With a structure to
The spacer is arranged so as to surround the outer periphery of the drainage pipe part, and forms a void that is not filled with concrete inside,
A portion added to or processed in a cylindrical drainage pipe inserted into the gap from the lower side so as to surround the drainage pipe part is engageable with the protrusion.
A drain body characterized by that. The protrusion has a fan-shaped portion that extends horizontally from the outer peripheral surface of the drain pipe portion and a rising portion that rises upward from a side extending in the radial direction of the fan-shaped portion.
The drain body according to claim 7, wherein: A roof drain embedded in a concrete floor of a building to drain rainwater,
A tray portion that receives rainwater on the upper surface, a tubular drain pipe portion that is connected to the lower portion of the tray portion and that has a drain hole penetrating vertically is formed, and a recess or a notch portion provided in the drain pipe portion is formed. A drain body;
A cylindrical spacer that is disposed so as to surround the outer periphery of the drain pipe part and forms a void that is not filled with concrete inside,
With
A portion added or processed to a cylindrical drainage pipe inserted into the gap from the lower side so as to surround the drainage pipe part is engageable with the recess or notch.
A roof drain characterized by that. The cutout portion has a straight portion extending upward from the lower end portion of the drain pipe portion and a U-shaped portion protruding upward connected to the upper end of the straight portion.
The roof drain according to claim 9. A drain body that is combined with a cylindrical spacer to drain rainwater and embedded in a concrete floor of a building,
A tray portion that receives rainwater on the upper surface, a tubular drain pipe portion that is connected to the lower portion of the tray portion and that has a drain hole penetrating vertically is formed, and a recess or a notch portion provided in the drain pipe portion is formed. With structure,
The spacer is arranged so as to surround the outer periphery of the drainage pipe part, and forms a void that is not filled with concrete inside,
A portion added or processed to a cylindrical drainage pipe inserted into the gap from the lower side so as to surround the drainage pipe part is engageable with the recess or notch.
A drain body characterized by that. The cutout portion has a straight portion extending upward from the lower end portion of the drain pipe portion and a U-shaped portion protruding upward connected to the upper end of the straight portion.
The drain body according to claim 11. A roof drain embedded in a concrete floor of a building to drain rainwater,
A drain main body that forms a saucer part that receives rainwater on the upper surface and a tubular drainage pipe part that is connected to the lower part of the saucer part and is provided with a drainage hole penetrating vertically.
A cylindrical spacer that is disposed so as to surround the outer periphery of the drain pipe part and forms a void that is not filled with concrete inside,
A strainer disposed at the upper part of the saucer so as to cover the upper surface of the drainage hole, and provided with a plurality of slits or a plurality of holes;
When the vertical dimension is reduced, the horizontal dimension is extended, and when the vertical dimension is extended, the horizontal dimension is reduced.
An attachment member that is a bolt that changes the vertical dimension of the stop member when passing through and screwing into the stop member and the strainer;
With
When the stop member extends in the horizontal dimension, it is caught at at least two places of the drain pipe part.
A roof drain characterized by that. The retaining member is a ring-shaped or polygonal shape that is closed when viewed from the horizontal direction, and the mounting member is fixed to the spring member having a pair of through holes through which the mounting member penetrates in the vertical direction. With a threaded part to be screwed in,
The roof drain according to claim 13. A roof drain embedded in a concrete floor of a building to drain rainwater,
A drain main body that forms a saucer part that receives rainwater on the upper surface and a tubular drainage pipe part that is connected to the lower part of the saucer part and is provided with a drainage hole penetrating vertically.
A cylindrical spacer that is disposed so as to surround the outer periphery of the drain pipe part and forms a void that is not filled with concrete inside,
A strainer disposed at the upper part of the saucer so as to cover the upper surface of the drainage hole, and provided with a plurality of slits or a plurality of holes;
A stop member that is a rod-like member provided with a threaded portion at one end;
A mounting member that is a bolt that passes through the strainer and is screwed into a threaded portion of the stop member;
With
When the mounting member is twisted, the other end of the stopper member is caught on the drain pipe portion.
A roof drain characterized by that. A roof drain embedded in a concrete floor of a building to drain rainwater,
An upper member, which is a member that forms a saucer part recessed to receive rainwater, and a bowl-like part that is located in the lower part of the saucer part and provided with a hole, and a bowl-like part that is provided with a hole in the center It is a member that forms an intermediate member that is a member to be formed, a tubular drainage pipe part provided with drainage holes penetrating in the vertical direction, and a bowl-like part that is located above the drainage pipe part and provided with holes. A lower member, wherein the upper member, the intermediate member, and the lower member are sequentially stacked, and an edge forming a hole in the upper member forms a hole in the intermediate member and a hole in the lower member A drain body that is folded across an edge forming
A cylindrical spacer which is arranged so as to surround the outer periphery of the drain pipe part and forms an air gap which is not filled with concrete on the inside by abutting the upper end part against the lower surface of the intermediate member;
Prepare
A roof drain characterized by that. A drain body that is combined with a cylindrical spacer to drain rainwater and embedded in a concrete floor of a building,
An upper member, which is a member that forms a saucer part recessed to receive rainwater, and a bowl-like part that is located in the lower part of the saucer part and provided with a hole, and a bowl-like part that is provided with a hole in the center It is a member that forms an intermediate member that is a member to be formed, a tubular drainage pipe part provided with drainage holes penetrating in the vertical direction, and a bowl-like part that is located above the drainage pipe part and provided with holes. A lower member, wherein the upper member, the intermediate member, and the lower member are sequentially stacked, and an edge forming a hole in the upper member forms a hole in the intermediate member and a hole in the lower member With a structure that is folded across the edge forming
The spacer is disposed so as to surround the outer periphery of the drainage pipe portion, and the upper end is abutted against the lower surface of the intermediate member to form a gap not filled with concrete inside;
A drain body characterized by that. A roof drain embedded in a concrete floor of a building to drain rainwater,
An upper member that is a member that forms a saucer portion that is recessed downward to receive rainwater and that has a screw-like unevenness on the side surface, and a bowl-like portion that is located at the bottom of the saucer portion and that has a hole, An intermediate member which is a member forming a bowl-shaped part provided with a hole, a tubular drain pipe part provided with a drain hole penetrating in the vertical direction, and a bowl provided with a hole located above the drain pipe part A lower member that is a member that forms a shape portion, the upper member, the intermediate member, and the lower member are sequentially stacked, and an edge that forms a hole in the upper member forms a hole in the intermediate member A drain body folded between the edge to be formed and the edge to form the hole of the lower member;
A cylindrical spacer which is arranged so as to surround the outer periphery of the drain pipe part and forms an air gap which is not filled with concrete on the inside by abutting the upper end part against the lower surface of the intermediate member;
Comprising
A roof drain characterized by that.

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