JP4709981B2 - Drain trap - Google Patents

Description

The present invention relates to a drain trap that prevents odors from sewage and backflow of pests to the indoor side.

As a well-known drain trap, for example, there is a drain trap illustrated in FIG. A conventional example of the drain trap illustrated in FIG. 10 will be described below with reference to the drawings.
10 is attached to a waterproof pan for a washing machine described below.
The waterproof pan for a washing machine is a pan in which a washing machine is placed on the top, and has an opening on the bottom.
The drain trap is composed of a trap body, a flange, a water seal, a water seal tube, a foam stopper pipe, a joint, and a countersink member described below.
The trap body has a bottomed cylindrical shape, and includes a drain port through which drainage flows into the upper portion and a discharge port through which drainage is discharged from the side surface. In addition, a female screw that is screwed with a flange described later is formed in the drain port, and a pipe body is connected to the discharge port, and finally connected to the sewer pipe. Further, a sealed water tub described later is disposed inside, and the outer peripheral space is configured as a flowing water channel through which drainage passes.
The flange is an L-shaped member having an outward-facing flange, and constitutes a male screw that is screwed onto the outer periphery of the trap body. The flange is a member for attaching the trap body to the opening of the waterproof pan for the washing machine. The flange and the trap body are sandwiched between the opening of the waterproof pan for the washing machine, and the male screw of the flange and the trap body It is attached by screwing a female screw.
The sealed water trough is a bottomed cylindrical trough disposed in the trap body, and constitutes a space for storing a part of drainage called sealed water inside. And the water channel for draining the overflow water of the waste_water | drain in a seal water tank to the exterior of a seal water tank is opened in the upper part of a seal water tank. Moreover, in the said prior art example, the water seal is attached to the said flange by attachment mounting so that attachment or detachment is possible.
The sealed water cylinder is a cylindrical member, and is disposed in the sealed water bottle and forms a sealed water jointly with the sealed water bottle. Sealed water is provided to prevent sewage odors and pests from flowing back into the room. Further, the sealing cylinder is detachably engaged with the flange.
The foam-retaining pipe is a member that drains wastewater from drainage equipment (drainage from the washing machine in this conventional example) while guiding it downstream from the lower end of the sealing tube, and is an inlet into which wastewater from the drainage equipment flows. The guide part provided with the outflow port which extends to the side and discharges the waste_water | drain in a cylinder part to the outside of a foam stopper pipe is comprised in the cylindrical cylinder part provided in the upper part, and a cylinder part lower end. The guide portion is configured to extend in the vicinity of the seal tube or outward from the seal tube.
The joint is an elbow-like tube body connected between the drainage hose from the washing machine and the inlet of the anti-foaming pipe.
The eye plate member is engaged and attached to the flange so as to be disposed at the drain outlet of the trap body.

In the above-described conventional drainage trap, the following drainage flow occurs.
Drainage generated from the washing machine flows into the inflow port of the anti-foaming pipe through the drainage hose and joint of the washing machine, and is discharged from the outflow port to the outside of the anti-foaming pipe through the cylinder part and the guide part. Since the drainage that has passed through the foam-preventing pipe in this way is configured with the guide portion being close to the sealing tube or extending outward from the sealing tube, the foam contained in the washing machine drainage is directly It is forcibly discharged from the guide part of the foam stopper pipe to the outside of the sealed water bottle, and the foam in the drainage does not flow backward from the sealed water pipe to the drain port. Drainage from the foam-preventing pipe is discharged outward from the sealing tube, and is discharged from the waterway of the sealed water trough to the flow channel in the trap body. The drainage via the flow channel is finally discharged from the outlet to the sewer pipe. Is discharged.
Further, when drainage occurs on the waterproof pan for washing machine, it flows into the trap body from the drain outlet of the trap body connected to the opening of the waterproof pan for washing machine. At this time, since the eye plate member is arranged at the drain outlet of the trap body, dust and hair etc. in the drainage on the waterproof pan for the washing machine are caught by the eye plate member and flow into the trap body. Do not mix large waste in the drainage. In addition, the wastewater that has flowed into the trap body from the drain outlet is stored in the sealed water tank via the sealing tube, and then drained from the trap body through the water channel of the sealed water tank through the flow channel in the trap body. The water is finally discharged from the outlet through the pipe body to the sewer pipe.

Next, as a well-known drain trap, for example, there is a drain trap illustrated in FIG. A conventional example of the drain trap illustrated in FIG. 11 will be described below with reference to the drawings.
The drainage trap of the conventional example illustrated in FIG. 11 is provided in a bathroom described below.
The bathroom is composed of a bathtub, a bathtub pan on which the bathtub is placed, and a washing pan that forms a washing place provided adjacent to the bathtub pan. In addition, the bathtub pan and the washing place pan are provided with openings, and a drain trap is connected to the back side of the openings.
The drainage trap is composed of a trap body, a flange, a sealed water bottle, a sealed water bottle, an eye plate member, and an elbow member described below.
The trap body has a bottomed cylindrical shape, and constitutes a drainage port through which drainage flows into the upper part and a discharge port through which the drainage is discharged to the side surface, and the drainage port is engraved with a female screw that engages with a flange described later. A tube body finally connected to the sewer pipe is connected to the discharge port. Further, a branch pipe connected to an elbow member which will be described later is formed on the side surface of the trap body, and when a sealing water tank which will be described later is arranged inside, the flowing water through which drainage passes through the outer space from the sealing water tank Configure as a road.
The flange is an L-shaped member having an outward-facing flange, and constitutes a male screw that is screwed onto the outer periphery of the trap body. The flange is a member for attaching the trap body to the opening of the waterproof pan for the washing machine. The flange and the trap body are sandwiched between the opening of the waterproof pan for the washing machine, and the male screw of the flange and the trap body It is attached by screwing a female screw.
The sealed water trough is cylindrical and is disposed and configured integrally from the bottom surface in the trap body, and constitutes a space for storing a part of drainage called sealed water inside. And in the upper part of a sealing water tank, the water flow path for draining the overflow water of the waste_water | drain in a sealing water tank outside a sealing water tank is comprised.
The sealed water cylinder is a cylindrical member, and is disposed in the sealed water bottle and forms a sealed water jointly with the sealed water bottle. Sealed water is provided to prevent sewage odors and pests from flowing back into the room. Further, the sealing cylinder is detachably engaged with the flange.
The eye plate member is engaged and attached to the flange so as to be disposed at the drain outlet of the trap body.
The elbow member is configured as an elbow when viewed from the side, and a drainage body passes through the elbow member, one of which is attached to the opening of the bathtub pan and the other connected to the branch pipe of the trap body.

In the conventional drainage trap described in paragraph 0004, the drainage flow is as follows.
Drainage generated in the washing area pan flows from the opening of the washing area pan to the inside of the trap body through the drain outlet of the trap body on the back side, and passes through the sealing cylinder and then flows into the sealing water tank. The drainage in the sealed water tank passes through the bottom end of the sealed water bottle, gets over the top edge of the sealed water tank, passes through the water channel, and is discharged to the outside through the flow channel in the trap body. . Moreover, the drainage discharged from the discharge port is finally drained into sewage.
The drainage from the bathtub flows into the elbow member attached to the opening of the bathtub pan, and flows into the trap body as it is from the branch pipe of the trap body. Bathtub drainage that flows from the branch pipe into the trap body passes through a flowing water channel in the trap body, and is drained from the outlet of the trap body to sewage.
The drainage from the bathtub pan flows into the elbow member from the opening of the bathtub pan, flows directly from the branch pipe of the trap body into the flowing water channel in the trap body, and then is discharged from the outlet of the trap body to the sewage.
Since such a drainage path is taken, drainage from the washing pan, drainage from the bathtub, and drainage from the bathtub pan all pass through the sealed water in the trap body and are discharged to the sewer pipe. Therefore, bad odors and pests from the sewage do not flow back from the drain of the washing place pan or the opening of the bathtub pan.
In addition, even if hair or debris is present in the waste water from the washing pan, the eye plate member is constructed at the drain outlet of the trap body, so that the hair or debris is collected in the eye plate member, and the trap It does not flow into the body or sewage.

Japanese Utility Model Publication No. 62-27572 Japanese Utility Model Publication 3-450 Japanese Utility Model Publication No. 5-3378 JP-A-3-260230

The drainage trap as in the conventional example has the following problems.
Conventional washing machine drain traps have a foam stop pipe arranged so that foam in the drainage does not flow back into the room, but the foam stop pipe has a narrow opening area at the outlet, Although the foam can be effectively suppressed, the drainage flow rate is very poor because the opening area of the outlet is small.
In addition, when the drainage trap for a conventional bathtub has a large amount of drainage flowing into the trap body, the drainage in the trap body does not catch up and flows backward to the drain outlet side of the trap body, and the drainage flows back onto the washing area pan. There was a case. In addition to backflow to the washing pan side, it may flow back to the opening of the elbow member through the branch pipe of the trap body, in this case, the backflow from the opening of the elbow member to the bathtub pan, The drainage sometimes flowed back on the bathtub.
In particular, when drainage flows backward on the washing pan and in the bathtub, it is very unsanitary and dirty because the user can see the appearance. And if drainage flows backward on the bathtub pan, the bathtub pan is usually connected with water tightly with an apron, etc., so the bathtub pan cannot be visually checked from the washing pan side, and the bathtub pan is cleaned cleanly. Even if you try to do it, the apron often gets in the way and is difficult to wash.

Accordingly, the drain trap of the present invention has been invented to solve the following problems.
1. Drainage traps that can smoothly drain water and improve drainage flow even in environments where there is a large amount of wastewater containing foam, such as washing machines and bathtubs, and there is no backflow of foam to the equipment.
2. Drainage trap with improved drainage flow without drainage backflow on the equipment side.

The present invention according to claim 1 is arranged in a trap body 6 having a bottomed cylindrical trap body 6 having a drain port 1 through which drainage flows into an upper portion and a discharge port 2 through which drainage is discharged from a side surface. A bottomed cylindrical sealed water trough 9 provided with a water passage 7 through which drainage passes, and a cylindrical shape, which is disposed in the sealed water tank 9 and sealed in cooperation with the sealed water tank 9 A cylindrical tube part 13 which is arranged in the sealed cylinder 10 and the inlet 11 into which drainage from the drainage device flows is provided at the top, and extends from the lower end of the cylindrical part 13 to the side. A guide part 14 having an outlet 12 for discharging drainage to the outside, and a foam stopper pipe 16 for guiding drainage from the drainage device from the lower end of the sealing tube 10 into the sealing tank 9; In the constructed drain trap, the guide portion 14 of the foam-preventing pipe 16 has a gently curved shape when viewed from above. A plurality of configuration, Ikioizuki a curved shape by the guide portion of the drainage gentle curve shape of the anti-foam pipe 16, the waste water discharged from the outlet 12 while along the inner peripheral surface seal water bowl 9, toward the fixed direction It is a drainage trap characterized by flowing in a spiral .

According to the second aspect of the present invention, when the foam-preventing pipe 16 is disposed in the sealing cylinder 10, the opening 17 for allowing drainage other than the guide part 14 to flow through the sealing pipe 10 when viewed from above. Is a drain trap according to paragraph 0009, wherein

The drainage trap according to paragraph 0009 or paragraph 0010 , wherein the present invention according to claim 3 is configured such that a convex portion 8 that gently rises upward is formed on the bottom surface of the sealing tub 9. It is.

According to a fourth aspect of the present invention, in the paragraph 0009, a wing portion 15 that positions and fixes an arrangement in the sealed water tube 10 is formed on a side surface of the tube portion 13 of the foam stopper pipe 16. Or the drain trap according to any one of paragraphs 0011 .

In the present invention according to claim 5, the bottom surface of the trap body 6 is raised to form the apex portion 4, and the descending inclined surfaces 5 that are connected to the lowest end of the discharge port 2 are provided on both sides starting from the apex portion 4. The drainage trap according to any one of paragraphs 0009 to 0012, wherein:

The present invention described in claim 6 is characterized in that the inclined surface 5 starting from the apex 4 is not line-symmetric with respect to the center line of the top view discharge port 2. It is a drain trap .

According to the seventh aspect of the present invention, the vertex 4 is located at a position where the angle formed by the center line of the top view discharge port 2 and a straight line from the vertex 4 toward the central point of the trap body 6 is about 260 °. The drainage trap according to any one of paragraph 0011 or paragraph 0012, wherein the drainage trap is configured as described above .

According to the eighth aspect of the present invention, in the paragraph 0009, the flow direction of the drainage from the guide portion 14 of the foam stopper pipe 16 and the flow direction of the drainage of the inclined surface 5 of the trap body 6 are the same. Or the drain trap according to any one of paragraphs 0015 .

The drainage trap according to any one of paragraphs 0009 to 0016 , wherein the lowermost surface of the discharge port 2 is substantially the same as the bottom surface of the trap body 6. It is.

According to the first aspect of the present invention, the plurality of guide portions 14 of the foam-preventing pipe 16 are configured to have a gently curved shape when viewed from above, so that the flow of drainage is curved with the gently curved wall of the guide portion 14. As a result, the drainage began to flow in a spiral, and the drainage flow rate of the drain trap was improved.
According to the second aspect of the present invention, when the foam-preventing pipe 16 is disposed in the sealing cylinder 10, the opening 17 for allowing drainage other than the guide part 14 to flow into the sealing cylinder 10 when viewed from above is configured. Therefore, even if there is drainage other than the foam-preventing pipe 16 of the trap body 6 from the drainage port, the drainage can smoothly flow into the inside of the sealing tub 9 downstream from the sealing tube 10. The drainage flow rate was improved.
According to the third aspect of the present invention, since the convex portion 8 gently raised upward is formed on the bottom surface of the sealing water tub 9, the drainage that has flowed down from the anti-foam pipe 16 into the convex portion 8. Collision and radial flow can be shaped, and the shaped wastewater can collide with the guide part 14 of the foam stopper pipe 16 so that the wastewater can be more spiraled, and the drainage trap The drainage flow rate was improved.
According to the fourth aspect of the present invention, since the wing part 15 for positioning and fixing the position in the sealing cylinder 10 is formed on the side surface of the cylinder part 13 of the foam stopper pipe 16, the drainage in the trap body 6 is performed. It can be positioned and fixed at an appropriate position in the water sealing tube 10 arranged at the mouth.
The present invention as set forth in claim 5 is characterized in that the bottom surface of the trap body 6 is raised to form an apex portion, and the descending inclined surfaces 5 that are connected to the lowest end of the discharge port are provided on both sides starting from the apex portion. As a result, the flow of drainage gained momentum, and the drainage flow rate of the drain trap improved.
According to the sixth aspect of the present invention, since the inclined surface 5 starting from the apex portion is not line-symmetric with respect to the center line of the top view discharge port, the flow of the drainage swirls from the apex portion. As a result, the drainage flow rate of the drain trap was improved.
The present invention according to claim 7 is configured such that the apex portion is located at a position where an angle formed by the center line of the top view discharge port and a straight line from the apex portion toward the central point of the trap body 6 is about 260 °. As a result, the drainage flow became the most vigorous toward the outlet, and the drainage flow rate of the drain trap was improved.
The present invention according to claim 8 is configured so that the flow direction of the drainage from the guide portion 14 of the foam stopper pipe 16 and the flow direction of the drainage of the inclined surface 5 of the trap body 6 are the same. The flow of the waste water in the main body 6 became the same direction, the generation of the turbulent flow of the waste water in the trap body 6 was eliminated, and the drainage flow rate of the drain trap improved.
According to the ninth aspect of the present invention, since the lowermost surface of the discharge port is substantially the same as the bottom surface of the trap body 6, the flow of the drainage on the inclined surface 5 is smoothly drained from the discharge port. The drainage flow rate of the drain trap has been improved. In addition, since the bottom of the attachment position of the discharge port is configured to be substantially the same as the bottom of the trap body, it can be configured without any step in the height direction as in the past, eliminating the problem of clogging dust, and further Since the flow of drainage is not hindered by the steps, the drainage flow rate of the drain trap was improved. And it became possible to make the height direction of the drain trap body small, which was useful for lowering the floor under the floor.

A first embodiment of the present invention will be described below with reference to the drawings.
The drain trap of the present invention is the drain trap illustrated in FIGS. 1 and 6 to 8. Hereinafter, embodiments of the drain trap illustrated in FIGS. 1 and 6 to 8 will be described with reference to the drawings.
The drain trap of the present embodiment illustrated in FIGS. 1 and 6 to 8 is provided in a bathroom described below.
The bathroom includes a bathtub, a bathtub pan 21 on which the bathtub is placed, and a washing pan 22 that forms a washing place provided adjacent to the bathtub pan 21. In addition, the bathtub pan 21 and the washing pan 22 are provided with openings, and a drain trap is connected to the back side of the openings.
The drain trap is composed of a trap main body 6, a flange, a water seal 9, a water seal cylinder 10, an eye plate member 24, and an elbow member 23 described below.
The trap main body 6 has a bottomed cylindrical shape as shown in FIGS. 6 to 8, and includes a drain port 1 through which drainage flows and a drain port 2 through which drainage is discharged from the side. The mouth 1 is engraved with a female screw that is screwed with a flange, which will be described later, and the discharge port 2 is finally connected with a pipe connected to the sewer pipe. Although not shown, a branch pipe 25 connected to an elbow member 23 to be described later is formed on the side surface of the trap body 6, and when a sealing water bottle 9 to be described later is disposed inside, an outer periphery of the sealing water bottle 9 is provided. Is configured as a flowing water channel 3 through which drainage passes.
Further, the bottom surface of the discharge port 2 is substantially the same as the bottom surface of the trap body 6, and this configuration is obtained when a drain pipe or a sewer pipe is connected to the discharge port 2 in this embodiment. The bottom surface of the trap body 6 and the height direction of the discharge port 2 are configured to be flat. This configuration is configured such that the bottom surfaces are flat by configuring the discharge port 2 to protrude downward by the thickness of the drain pipe or the sewer pipe.
A part of the bottom surface of the water flow channel 3 of the trap body 6 is raised to form the apex portion 4, and descending from the apex portion 4 toward the discharge port 2 on both sides to the bottom end of the bottom surface of the discharge port 2. An inclined surface 5 is provided. The apex portion 4 is arranged and configured at a position where the angle formed by the center line of the top view discharge port 2 and a straight line from the apex portion 4 toward the center point of the trap body 6 is about 260 °. The inclined surface 5 starting from 4 is arranged and configured so as not to be line-symmetric with respect to the center line of the top view outlet 2 of the trap body 6. If the apex 4 is configured so as not to be line-symmetric with respect to the center line of the discharge port 2, the experiment results show that the flow of drainage is more strongly urged as compared to the line-symmetric configuration. ing.
The inclined surface 5 is inclined as it is because the drainage flowing through the water flow path 3 in the trap body 6 is smoothly urged toward the discharge port 2 by the inclined surface 5 from the apex portion 4. The water is smoothly drained from the discharge port 2 along the surface 5.
The flange is an L-shaped member having a flange facing outward in a sectional view, and constitutes a male screw that is screwed onto the trap body 6 on the outer periphery. It is a member for attaching the trap body 6 to the opening of the washing place pan 22. The flange and the trap body 6 are sandwiched between the opening of the washing place pan 22 and the male screw of the flange and the drain port 1 of the trap body 6 are connected. It is attached by screwing with a female screw.
Sealing trough 9 is cylindrical and is configured to stand integrally in the trap body 6 from the bottom surface. A space for storing a part of the wastewater called sealed water is constructed. In addition, a water passage 7 for draining the overflow water of the drainage water in the seal water tank 9 to the outside of the seal water tank 9 is formed in the upper part of the seal water tank 9.
The water seal cylinder 10 is a cylindrical member, and is disposed in the seal water bottle 9 to form a water seal together with the seal water bottle 9. Sealed water is provided to prevent sewage odors and pests from flowing back into the room. Further, the water sealing cylinder 10 is detachably engaged with the flange.
The eye plate member 24 is engaged and attached to the flange so as to be disposed at the drain port 1 of the trap body 6.
The elbow member 23 is configured as an elbow when viewed from the side, and is a pipe body through which drainage passes, one of which is attached to the opening of the bathtub pan 21 and the other connected to the branch pipe 25 of the trap body 6. Composed.

In the conventional drainage trap described in paragraph 0020, the drainage flow is as follows.
Drainage generated in the washing place pan 22 flows into the trap body 6 from the opening of the washing place pan 22 through the drain outlet 1 of the trap body 6 on the back surface, and passes through the sealing cylinder 10 and flows into the sealing water bottle 9. The drainage in the sealing tub 9 passes through the lower end of the sealing tub 10, gets over the upper end of the sealing tub 9, passes through the water passage 7, passes through the inclined surface 5 of the flowing water passage 3 in the trap body 6, and traps It is discharged from the discharge port 2 of the main body 6 to the outside. Moreover, the waste water drained from the discharge port 2 is finally drained into sewage. At this time, the drainage is smoothly energized by the inclined surface 5 and the bottom end of the inclined surface 5 is flush with the bottom surface of the discharge port 2, so that the energized drainage is smoothly discharged. It can be discharged from the outlet 2 to the outside.
The drainage from the bathtub flows into the elbow member 23 attached to the opening of the bathtub pan 21 and flows into the trap body 6 from the branch pipe 25 of the trap body 6 as it is. Bathtub drainage that flows into the trap body 6 from the branch pipe 25 passes through the water flow path 3 in the trap body 6 and is drained from the outlet 2 of the trap body 6 to the sewage. At this time, the drainage is smoothly energized by the inclined surface 5 and the bottom end of the inclined surface 5 is flush with the bottom surface of the discharge port 2, so that the energized drainage is smoothly discharged. It can be discharged from the outlet 2 to the outside. Moreover, since there is no step in the height direction between the bottom surface of the trap body 6 and the discharge port 2, the drainage is smoothly drained without being disturbed by the step. Moreover, since the height direction of the drain trap body can be reduced by the level difference, the height direction under the floor can be reduced.
The drainage from the bathtub pan 21 flows into the elbow member 23 from the opening of the bathtub pan 21, and directly flows from the branch pipe 25 of the trap body 6 into the flow channel 3 in the trap body 6, and then the discharge port of the trap body 6. 2 is discharged into sewage.
Since such a drainage path is taken, the drainage from the wash basin pan 22, the drainage from the bathtub, and the drainage from the bathtub pan 21 all pass through the sealed water in the trap body 6 and are discharged to the sewer pipe. Therefore, bad odors and pests from the sewage do not flow backward from the opening of the wash basin pan 22 or the opening of the bathtub pan 21.
Further, even if hair or dust is present in the drainage from the washing pan 22, since the eye plate member 24 is formed at the drain outlet 1 of the trap body 6, the hair or dust is placed on the eye plate member 24. It is collected and does not flow into the trap body 6 or the sewage side.
Moreover, since the inclined surface 5 was comprised in the flow channel 3 of the trap main body 6, the drainage flow volume of the drainage trap of the present Example improved.

A second embodiment of the present invention will be described below with reference to the drawings.
The drain trap of the present invention is the drain trap illustrated in FIGS. Examples of the drain trap shown in FIGS. 2 to 9 will be described below with reference to the drawings.
The drainage trap of the conventional example shown in FIGS. 2 to 9 is attached to a waterproof pan 20 for a washing machine described below.
The waterproof pan 20 for a washing machine is a pan with a washing machine placed on the top, and has an opening on the bottom.
The drain trap is composed of a trap main body 6, a flange, a sealing pot 9, a sealing cylinder 10, a foam stopper pipe 16, a joint 18, and a countersink member 24 described below.
The trap body 6 has a bottomed cylindrical shape, and includes a drain port 1 through which drainage flows into an upper portion and a discharge port 2 through which drainage is discharged from a side surface. The drain port 1 is provided with a female screw that is screwed with a flange, which will be described later, and a pipe body is connected to the discharge port 2, and finally connected to a sewer pipe. Further, a sealed water bottle 9 which will be described later is arranged inside, and the outer peripheral space from the sealed water bottle 9 is configured as a flowing water channel 3 through which drainage passes. As shown in FIGS. 6 to 8, a part of the bottom surface of the water flow path 3 of the trap body 6 is raised to form the apex portion 4, and the apex portion 4 is set as a starting point to both ends of the discharge port 2. A downward inclined surface 5 to be connected is provided. Further, the apex portion 4 is arranged and configured at a position where an angle formed by the center line of the discharge port 2 in a top view (FIG. 6) and a straight line from the apex portion 4 toward the center point of the trap body 6 is about 260 °. In addition, the inclined surface 5 starting from the apex 4 is arranged and configured so as not to be line symmetric with respect to the center line of the top view discharge port 2 of the trap body 6. If the apex 4 is configured so as not to be line-symmetric with respect to the center line of the discharge port 2, the experiment results show that the flow of drainage is more strongly urged as compared to the line-symmetric configuration. ing.
The inclined surface 5 is inclined as it is because the drainage flowing through the water flow path 3 in the trap body 6 is smoothly urged toward the discharge port 2 by the inclined surface 5 from the apex portion 4. The water is smoothly drained from the discharge port 2 along the surface 5.
The flange is an L-shaped member having a flange facing outward in a sectional view, and constitutes a male screw that is screwed onto the trap body 6 on the outer periphery. It is a member for attaching the trap body 6 to the opening of the washing place pan 22. The flange and the trap body 6 are sandwiched between the opening of the washing place pan 22 and the male screw of the flange and the drain port 1 of the trap body 6 are connected. It is attached by screwing with a female screw.
The sealed water tub 9 is a bottomed cylindrical tub disposed in the trap body 6 and constitutes a space for storing a part of drainage called sealed water inside. In addition, a water passage 7 for draining the overflow water of the drainage water in the seal water tank 9 to the outside of the seal water tank 9 is opened at the upper part of the seal water tank 9. Moreover, in the said Example, the water seal 9 is attached to the said flange so that attachment or detachment is possible by engagement mounting. As shown in FIG. 4, a convex portion 8 is formed at the center of the bottom surface with a gentle R shape and gently raised upward. By the convex portion 8, the drainage flowing down from above the convex portion 8 comes into contact with the convex portion 8, so that the drainage flow is formed around the convex portion 8.
The water seal cylinder 10 is a cylindrical member, and is disposed in the seal water bottle 9 to form a water seal together with the seal water bottle 9. Sealed water is provided to prevent sewage odors and pests from flowing back into the room. Further, the water sealing cylinder 10 is detachably engaged with the flange.
As shown in FIG. 5, the foam stopper pipe 16 is a member that drains drainage from drainage equipment (drainage from the washing machine in this embodiment) while guiding it downstream from the lower end of the sealing tube 10. A cylindrical tube part 13 provided with an inlet 11 into which drainage from the apparatus flows in at the top, a flow extending laterally to the lower end of the tube part 13 and discharging the drainage in the tube part 13 to the outside of the foam stopper pipe 16 The guide part 14 provided with the exit 12 is comprised. The guide portion 14 is configured to extend in the vicinity of the seal tube 10 or outward from the seal tube 10, and the bottom surface is open. The guide portion 14 has a gently curved shape when viewed from above, specifically a curve that is in contact with the circular shape of the top view cylinder portion 1313, and is a guide portion that faces outward in the direction of drainage flow. The radius of 14 is small, and the radius of the guide portion 14 in the inner direction is large. Further, in the present embodiment, three guide portions 14 are formed in the lateral direction, and thus three outlets 12 are also formed.
Due to the guide portion 14, the wastewater that flows in from the inlet 11 of the foam-preventing pipe 16 becomes a flow in which the drainage has a momentum due to the gentle curve of the guide portion 14 and is drained vigorously.
In addition, a wing portion 15 for fixing the position of the foam stopper pipe 16 in the water seal cylinder 10 is erected around the cylinder portion 13 of the foam stopper pipe 16 toward the side. The wing portion 15 is provided with a wing-like wall so that it can be placed in the center of the sealing cylinder 10 and the sealing tub 9 when the foam stopper pipe 16 is set in the trap body 6. . When the trap body 6 is set, an opening 17 for allowing drainage other than the guide portion 14 to pass through the top-view sealed water bottle 10 is formed. By configuring such an opening, the guide portion 14 of the foam stopper pipe 16 smoothly flows downstream from the sealing cylinder 10 even when drained from other than the foam stopper pipe 16 (for example, from the drain port 1). be able to.
The joint 18 is an elbow-like tube body that is connected between the drainage hose 19 from the washing machine and the inlet 11 of the foam-preventing pipe 16.
The eye plate member 24 is engaged and attached to the flange so as to be disposed at the drain port 1 of the trap body 6.

The drain trap having such a configuration is attached as follows.
The opening of the waterproof pan 20 for the washing machine is assigned to the opening of the trap body 6 from below, and the male screw of the flange is screwed to the female screw of the drain port 1 of the trap body 6 from above to connect the drain pipe to the discharge port 2 of the trap body 6. Connecting. After that, the removable water bottle 9 is set in the trap body 6 from the drain port 1, the flange and the water bottle 9 are locked and placed, and the foam-preventing pipe 16 is connected to the water bottle 9 from the water outlet 1. After that, the sealing cylinder 10 is set in the sealing tank 9 from the drain port 1 and is engaged with the flange and attached. At this time, since the wing portion 15 is formed on the outer periphery of the cylindrical portion 13 of the foam stopper pipe 16, positioning is performed so that the foam stopper pipe 16 is disposed at the center with respect to the sealed water cylinder 10 and the sealed water bottle 9. Can do. Moreover, the mounting of the drain trap of the said Example is complete | finished by setting the eye plate member 24 to a flange and connecting the joint 18 with which the foam prevention pipe 16 was connected to the washing machine.

The drainage trap of this embodiment has the following drainage flow.
Drainage generated from the washing machine flows into the inflow port 11 of the foam stopper pipe 16 through the drainage hose 19 and the joint 18 of the washing machine, and once flows down toward the bottom surface of the sealing tub 9 through the cylinder portion 13. It collides with the convex part 8 of the sealing water bottle 9 and diffuses to the periphery, and is discharged from the outlet 12 through the guide part 14 to the outside of the foam stopper pipe 16. At this time, the drainage that collided with the convex portion 8 and diffused to the surroundings flows along the guide of the gently curved guide portion 14 as it is. The drainage is discharged from the outlet 12 while the drainage is smoothly energized by the gently curved guide portion 14, so that the drainage flow rate is significantly improved as compared with the conventional foam stopper pipe 16.
Thus, the waste water that has passed through the anti-foam pipe 16 is included in the waste water of the washing machine because the guide portion 14 is close to the seal tube 10 or extends outward from the seal tube 10. The foam is forcibly discharged directly from the guide portion 14 of the foam stopper pipe 16 to the outside of the sealing cylinder 10, and the foam in the drainage does not flow backward from the sealing cylinder 10 to the drain outlet 1.
The drainage from the foam-preventing pipe 16 is discharged from the sealing tube 10 into the outer sealing water bottle 9 and is discharged from the water passage 7 of the sealing water bottle 9 to the flowing water passage 3 in the trap body 6. And it is discharged | emitted from the discharge port 2 of the trap main body 6 outside via the inclined surface 5 of the flowing water path 3 in the trap main body 6. FIG. Moreover, the waste water drained from the discharge port 2 is finally drained into sewage. At this time, the drainage is smoothly energized by the inclined surface 5 and the bottom end of the inclined surface 5 is flush with the bottom surface of the discharge port 2, so that the energized drainage is smoothly discharged. It can be discharged from the outlet 2 to the outside.
Further, the momentum of the drainage is increased by the convex portion 8 of the sealing tub 9 and the gently curved guide portion 14 of the foam stopper pipe 16, and the drainage flow is further forced by the inclined surface 5 of the trap body 6. With momentum, the drainage flows smoothly and finally drains from the outlet 2 to the sewage. Therefore, the drainage flow rate of the drain trap was improved.

In addition to the embodiments described above, the embodiments of the present invention can be modified as appropriate without departing from the scope of the claims.

It is sectional drawing which shows the construction state of 1st Example of this invention. It is sectional drawing which shows 2nd Example of this invention. FIG. 3 is a cross-sectional view taken along the line A-A ′ of FIG. 2 showing a second embodiment of the present invention. (A) It is a top view which shows the sealing water bottle of 2nd Example of this invention. (B) It is B-B 'sectional drawing of Fig.4 (a) which shows the sealing water bottle of 2nd Example of this invention. (A) It is a top view which shows the foam stop pipe of 2nd Example of this invention. (B) It is C-C 'sectional drawing of FIG.5 (c) which shows the foam prevention pipe of 2nd Example of this invention. (C) It is a bottom view which shows the foam stop pipe of 2nd Example of this invention. It is a top view of the trap main body of 2nd Example of this invention. It is a side view of the trap main body of 2nd Example of this invention. It is D-D 'sectional drawing in FIG. 6 which shows the trap main body of 2nd Example of this invention. It is sectional drawing which shows the construction state of 2nd Example of this invention. It is sectional drawing which shows a prior art example. It is sectional drawing which shows a prior art example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Drain outlet 2 Drain outlet 3 Flow path 4 Apex part 5 Inclined surface 6 Trap main body 7 Water flow path 8 Convex part 9 Sealed water bottle 10 Sealed cylinder 11 Inlet 12 Outlet 13 Cylindrical part 14 Guide part 15 Wing part 16 Foam prevention pipe 17 Opening 18 Joint 19 Drain hose 20 Washing machine waterproof pan 21 Bath pan 22 Washing pan 23 Elbow member 24 Eye plate member 25 Branch pipe

Claims (9)

A bottomed cylindrical trap body 6 having a drain port 1 into which drainage flows into the upper part and a discharge port 2 through which drainage is discharged on the side surface;
A bottomed cylindrical sealing water bottle 9 disposed in the trap body 6 and provided with a water passage 7 through which drainage flows on the side surface;
A sealing cylinder 10 which is cylindrical and is arranged in the sealing tub 9 to form the sealing water in cooperation with the sealing tub 9;
A cylindrical tube part 13 which is arranged in the sealed water cylinder 10 and has an inflow port 11 into which drainage from drainage equipment flows in, and a flow extending laterally from the lower end of the tube part 13 to discharge the drainage to the outside. A foam stopper pipe 16 configured to guide the drainage from the drainage device from the lower end of the sealing cylinder 10 into the sealing tank 9 by configuring a guide portion 14 having an outlet 12;
In a drain trap composed of
A plurality of guide portions 14 of the foam stopper pipe 16 are formed in a gently curved shape when viewed from above , and the drainage in the foam stopper pipe 16 is urged into a curved shape by the gently curved guide portion and is discharged from the outlet 12. The drainage trap is characterized in that the wastewater that flows along the inner peripheral surface of the sealed water basin 9 flows in a spiral shape in a certain direction . The foam-preventing pipe 16 includes an opening 17 for allowing drainage other than the guide portion 14 to pass through the top-side sealed water cylinder 10 when the foam-proof pipe 16 is disposed in the water-sealing cylinder 10. The drain trap according to claim 1. The drainage trap according to claim 1 or 2, wherein a convex portion 8 gently raised upward is formed on the bottom surface of the water seal 9. The wing portion 15 for positioning and fixing the position in the sealed tube 10 is formed on the side surface of the tube portion 13 of the foam stopper pipe 16. Drain trap as described in. The bottom surface of the trap body (6) is raised to form a vertex portion (4), and downward slope surfaces (5) are provided on both sides of the trap body (6) to the lowest end of the discharge port (2). The drain trap according to claim 4. 6. The drain trap according to claim 5, wherein the inclined surface 5 starting from the apex 4 is not line-symmetric with respect to the center line of the discharge port 2 as viewed from above. The said vertex part 4 was comprised in the position where the angle which the centerline of the top view discharge port 2 and the straight line which goes to the center point of the trap main body 6 from the vertex part 4 becomes is about 260 degrees. Claim | item 3 or the drainage trap as described in any one of Claim 4. The flow direction of the waste water from the guide part 14 of the said foam stop pipe 16 and the flow direction of the waste water of the inclined surface 5 of the trap main body 6 are comprised so that it may become the same, The said any one of Claim 1 thru | or 7 comprised. Drain trap as described in. 9. The drain trap according to claim 1, wherein a lowermost surface of the discharge port 2 is substantially the same as a bottom surface of the trap body 6.

Images