JP6822634B2 - Drainage piping - Google Patents

Description

The present invention relates to a drainage pipe that discharges drainage to the downstream, and more specifically, when the drainage port opened at the bottom of the tank body is closed, the water or the like stored in the tank body becomes the tank body. It relates to a drainage pipe of a tank body having an overflow mechanism for preventing overflow from the upper edge.

Drainage generated in the tank body such as a wash bowl, a sink, and a bathtub is discharged to the downstream side through a drainage pipe that communicates with a drainage port opened at the bottom of the tank body and forms a drainage flow path. Then, a drainage pipe having a structure capable of storing water or the like inside the tank body by closing the drainage port with a rubber stopper or a drainage stopper device that remotely controls a valve is known. There is.

In the drainage pipe, a mechanism for adjusting the water level called an overflow mechanism is provided in order to prevent water or the like stored in the tank body from overflowing from the upper edge of the tank body.
In most of the overflow mechanisms, an overflow hole is opened on the side surface of the tank body, and an overflow pipe communicating with the overflow hole is provided from the back surface of the tank body, so that the drainage flow path from the overflow hole is on the downstream side of the drain port. It is configured to join the drainage pipe of. With this configuration, when the water level inside the tank reaches the height of the overflow hole, the stored water etc. flows into the overflow hole before it overflows the outside of the tank body beyond the upper edge of the tank body. It can be discharged from the drainage pipe on the downstream side of the drainage port through the overflow pipe.

However, since the overflow mechanism must always open an overflow hole on the side surface of the tank body, the design of the tank body is limited, and the dirt inside the overflow hole can be visually recognized by the user. The sex was bad.
Therefore, like the drainage pipe described in Patent Document 1, a drainage pipe capable of configuring an overflow mechanism without providing an overflow hole has been proposed.

The drainage pipe described in Patent Document 1 includes a drainage pipe that communicates with a drainage port opened at the bottom surface of the tank body, a water stop valve that closes a flow path inside the drain pipe, and an upstream side of the water stop valve. It has an overflow pipe that branches in and bends in a substantially L-shaped cross section. The overflow pipe is extended in a substantially horizontal direction from the upstream side of the water stop valve and then bent at a substantially right angle to raise the flow path to a predetermined height. After the flow path is bent by about 180 degrees at the folded portion, the valve is bent. The flow path hangs down to the downstream side, bends in a substantially horizontal direction again, and joins the drain pipe on the downstream side of the water stop valve. Further, the upper end (folded portion) of the overflow pipe is arranged above the bottom surface of the tank body and below the upper edge of the tank body. The overflow pipe is arranged inside the cabinet having a storage space and is invisible to the user.
In the drainage pipe described in Patent Document 1, when water or the like is stored in the tank, the flow is as follows.
First, the drainage channel is blocked by the water stop valve, and water storage is started. At this time, since the overflow pipe branches from above the water stop valve, water or the like flows into the overflow pipe. Since the overflow pipe is branched from the pipe on the downstream side of the tank body, the water pressures in the tank body and the overflow pipe are balanced, and the water levels of each are equal. Therefore, when water or the like tries to be stored beyond the folded-back portion of the overflow pipe, the water or the like gets over the folded-back portion (overflows) and flows to the downstream side, and joins the drain pipe on the downstream side of the valve. That is, water or the like can be stored in the tank to a height at which the folded-back portion of the overflow pipe is provided, and when water or the like is to be stored beyond the height position of the folded-back portion, the surplus water is the overflow pipe. The structure is such that it is discharged to the pipe on the sewage side through.

Japanese Unexamined Patent Publication No. 2011-117229

As described above, since the drainage pipe described in Patent Document 1 does not need to have an overflow hole in the tank body, the design of the equipment is not restricted and the design is improved, but in order to construct the drainage pipe. Requires a space for accommodating a substantially L-shaped overflow pipe on the back side of the tank body or the like. Therefore, the drainage pipe described in Patent Document 1 cannot be installed in a washbasin that does not have a space for accommodating the drainage pipe on the back side of the tank body or a washbasin in which the tank body protrudes directly from the wall surface. For example, in the wash basin shown in FIG. 25, the top surface of the cabinet is formed flat for the purpose of improving the design, and a wash basin, which is a bowl-shaped tank body, is placed on the top surface of the cabinet. Therefore, in order to dispose the drainage pipe described in Patent Document 1, it is necessary to cut out a part of the top surface of the cabinet, but it is difficult to adopt it because it significantly impairs the design. Further, in a bathtub or the like that does not have a blindfold member such as an apron, if the drainage pipe described in Patent Document 1 is arranged, it can be visually observed by the user, and the design property is significantly impaired.

In view of the above problems, the present invention relates to a drainage pipe that forms an overflow mechanism without providing an overflow hole on the wall surface of the tank body, and is used for equipment for which a conventional drainage pipe cannot be adopted due to structural or design reasons. The challenge is to provide drainage pipes that can be attached.

The present invention according to claim 1 for solving the above problem is a drainage pipe for draining a tank body.
Comprises a water amount adjusting valve the water level of the tank body to open the drain passage when a certain level or more,
The tank body has a drainage port opened on the bottom surface and
Equipped with a drainage pipe that communicates with the drainage port to form a drainage channel
The water amount control valve constitutes a part of a water stop valve capable of storing water discharge or the like in the tank by blocking the drainage flow path.
The water stopcock includes a main body made of a hard material and a water stop part made of an elastic material provided on the outer periphery of the main body, and a water amount adjusting valve is attached to the main body.
The water stopcock is a drainage pipe characterized in that a drainage flow path that communicates with itself in the vertical direction is formed inside, and a water amount control valve closes the drainage flow path .

In the present invention according to claim 2, the water amount control valve is
The drainage pipe according to claim 1, wherein the drainage pipe is urged in a direction of blocking the drainage flow path by repulsion or suction of a magnet.

In the present invention according to claim 3, the water amount control valve is
The drainage pipe according to claim 1, wherein the drainage pipe is urged in a direction of closing the drainage flow path by repulsion or contraction of a spring.

In the present invention according to claim 4, the water amount control valve is
The drainage pipe according to claim 1, wherein the drainage pipe is made of an elastic material and includes an opening / closing portion that closes the flow path by contacting the inner peripheral surfaces with each other .

According to the first aspect of the present invention, since the water level in the tank body is adjusted by the water amount control valve, there is no space for storing the drainage pipe on the back side of the tank body unlike the conventional drainage pipe. It can also be installed on washbasins and the like.
According to the second to fifth aspects of the present invention, the specific configuration of the water amount control valve can be clarified.

It is sectional drawing which shows the construction state of this invention. It is sectional drawing which shows the rising state of a water stop valve. It is an enlarged view of the main part of FIG. It is an enlarged view of the main part which shows the open state of the 1st drainage flow path. It is an enlarged view of the main part which shows the open state of the 2nd drainage flow path. It is sectional drawing which shows the construction state of the 2nd Embodiment. It is sectional drawing which shows the rising state of a water stop valve. It is an enlarged view of the main part of FIG. It is an enlarged view of the main part which shows the open state of the 1st drainage flow path. It is an enlarged view of the main part which shows the open state of the 2nd drainage flow path. It is sectional drawing which shows the construction state of 3rd Embodiment. It is an enlarged view of the main part of FIG. It is an enlarged view of the main part which shows the open state of the 1st drainage flow path. It is an enlarged view of the main part which shows the open state of the 2nd drainage flow path. It is sectional drawing which shows the construction state of 4th Embodiment. It is an enlarged view of the main part of FIG. It is an enlarged view of the main part which shows the open state of the 1st drainage flow path. It is an enlarged view of the main part which shows the open state of the 2nd drainage flow path. It is sectional drawing which shows the construction state of 5th Embodiment. It is an enlarged view of the main part of FIG. It is an enlarged view of the main part which shows the operating state of a water amount control valve. It is sectional drawing which shows the construction state of 6th Embodiment. It is an enlarged view of the main part of FIG. It is an enlarged view of the main part which shows the open state of the 2nd drainage flow path. It is a reference figure which shows the conventional drainage pipe.

Hereinafter, the drainage pipe of the present invention will be described with reference to the drawings. It should be noted that the description described below is for facilitating the understanding of the embodiment, and the invention is not limited and understood by this. Further, in the following embodiments, the top, bottom, left, and right will be described with reference to the state shown in FIG.

As shown in FIGS. 1 and 2, the drainage pipe of the present embodiment is attached to the wash basin S, and drainage or the like generated inside the tank body B is discharged to the downstream side.

The wash basin S is an equipment device arranged in a wash basin (not shown), and is composed of a tank body B and a cabinet K.
The tank body B is a washbasin that generates drainage or the like inside when used, and is placed on the top surface of the cabinet K. A drainage port B1 is opened on the bottom surface of the tank body B, and a drainage pipe 1 forming a drainage flow path is communicated with the drainage port B1. Further, a decorative plate B2 is inserted into the drain port B1.
The cabinet K has a substantially box shape having a space for accommodating the drainage pipe 1 and the like inside, and the tank body B is placed on the top surface thereof, and the back surface of the tank body B (right side in FIGS. 1 and 2). ), The faucet F is provided. The top surface of the cabinet K is formed flat so that the user can see the entire circumference of the tank body B.

The drainage pipe 1 is a pipe that communicates with the drainage port B1 to form a drainage flow path, and is composed of a drainage port main body 2, an overflow unit 3, a drain plug device 13, and a drain trap 19. The drainage pipe 1 has a first drainage flow path that is opened and closed by a water stop valve 17, and a first drainage pipe that discharges excess water in the tank body B when water or the like is stored up to a predetermined water level in the tank body B. It has two drainage channels.

The drainage port main body 2 has a substantially cylindrical shape having a flange at the upper part, and is inserted through the drainage port B1. Further, the drain port main body 2 has a male screw formed on the outer periphery of the tubular portion, and sandwiches the peripheral edge of the drain port B1 by screwing with a nut arranged on the back surface (lower surface) of the tank body B. A packing is arranged between the flange of the drainage port main body 2 and the bottom surface of the tank body B, and the drainage port main body 2 is watertightly connected to the tank body B. Further, the lower end of the drain port main body 2 is attached to the adapter 4 by packing and nuts.

The overflow unit 3 is composed of an adapter 4 and a water amount control valve 10.
The adapter 4 has a valve seat 5 inside which the water stop valve 17, which will be described later, comes into contact with the adapter 4, and includes a first drainage flow path that is opened and closed by the water stop valve 17. An overflow inlet 6 opens in the lateral direction on the upstream side (upper side) of the valve seat 5, and an overflow discharge port 7 opens in the lateral direction on the downstream side (lower side) of the valve seat 5. As shown in FIG. 5, the drainage discharged from the overflow discharge port 7 merges with the first drainage channel at the merging portion 9. Further, both the overflow inflow port 6 and the overflow discharge port 7 have a substantially rectangular shape with the horizontal direction on the major axis side, and have a second drainage flow path that is continuous via the folded-back portion 8 and is opened and closed by the water amount control valve 10. Is forming.
The folded-back portion 8 has a water amount control valve 10 inside, and the second drainage flow path is closed in a state where neither positive pressure nor negative pressure is generated from the upstream side and the downstream side. Further, the folded-back portion 8 is formed with a guide portion (not shown) to prevent the water amount adjusting valve 10 from tilting during operation.
The water amount control valve 10 is a valve body having a water stop surface to which a packing made of rubber or the like is attached to the upstream side (left side), and a magnet 11a is attached to the downstream side (right side) thereof, and a second drainage flow. On the outside of the road, a magnet 11b arranged in a direction repelling the magnet 11a is provided. That is, the water amount control valve 10 is urged in a direction of closing the second drainage flow path by the repulsion of the magnet, and moves to the downstream side when a pressure equal to or higher than a predetermined value is applied to open the second drainage flow path. It has a structure. Here, the magnet 11b is connected to the valve shaft 12 having a male screw formed on the outer periphery thereof, and is screwed with the female screw formed on the inner circumference of the nut 21 attached to the outside of the adapter 4. Therefore, the water amount control valve 10 adjusts the relative distance between the magnet 11a and the magnet 11b by rotating the knob portion, that is, the repulsive force applied to the magnet 11a, thereby applying the pressure required to open the second drainage flow path. It is possible to adjust.

The drain plug device 13 is a device for remotely operating the water stop valve 17, and is composed of a switch unit 14, a release wire 15, and a lever 16.
The water stop valve 17 is a valve body in which packing is fitted around the water stop valve 17, and when it comes into contact with the valve seat 5, the first drainage flow path is blocked. The water stop valve 17 has a shaft portion extending vertically in the center thereof, and a float 18 is attached above the shaft portion. Further, the lower end of the shaft portion is arranged at a position where it can come into contact with the lever 16 of the drain plug device 13. The float 18 is made of a material having a specific gravity lighter than that of water, and when water or the like is stored on the water stop valve 17, it can rise in the axial direction along the shaft portion. Further, the float 18 has a flange portion, and when ascending, the flange portion abuts on the inner circumference of the drainage flow path on the upstream side to prevent dirt and the like inside the drainage flow path from flowing back to the tank body B side.
The switch unit 14 is an operation unit that manually pushes and pulls, and is arranged on the top surface of the cabinet K and on the back surface of the faucet F.
The release wire 15 is a member in which an inner wire, which is a stranded metal wire, is slidably arranged in a tubular outer tube, and has rigidity in the axial direction and flexibility in the side direction. One end of the release wire 15 is connected to the lower end of the switch portion 14, and the other end is attached to the lever 16. The release wire 15 has a structure in which the inner wire retracts / protrudes in response to the pushing operation of the switch unit 14, and transmits the operation applied to the switch unit 14 to the lever 16.
The lever 16 is arranged inside the drain pipe 1, and has a structure in which the end of the lever 16 rises when the inner wire retracts, and the end of the lever 16 descends when the inner wire protrudes.
That is, when the switch portion 14 is pulled up, the end portion of the lever 16 is raised, and the water stop valve 17 is pushed up to open the first drainage flow path. Further, when the switch portion 14 is pushed in, the end portion of the lever 16 is lowered, the water stop valve 17 is lowered by its own weight, and the first drainage flow path is closed.

The drain trap 19 is a pipe trap having a substantially S-shaped side view, and has an effect of forming a sealing water by storing a part of the drainage inside and preventing the invasion of odors and pests from the downstream side. .. The lower end of the drain trap 19 is connected to a pipe (not shown), and the drainage flowing into the trap 19 is discharged to the pipe on the sewage side.

The flow of water or the like passing through the drainage pipe of the present invention will be described below.

First, as shown in FIGS. 2 and 4, the flow of water or the like in a state where the switch unit 14 is pulled up will be described. In this state, the inner wire is retracted as the switch portion 14 is pulled up, and the end portion of the lever 16 is in a raised state. Therefore, the water stop valve 17 is pushed up by the lever 16, and the first drainage flow path is in an open state.
When water is discharged from the faucet F in the raised state of the water stop valve 17, the water or the like discharged to the tank body B passes through the drain port main body 2, the adapter 4, and the drain trap 19 from the drain port B1. It is discharged to the pipe on the sewage side (not shown). At this time, a part of the drainage that has flowed into the drain trap 19 is stored in the bottom surface of the drain trap 19 to form a sealing water.

When the switch portion 14 is pushed in from the above state, the inner wire protrudes toward the lever 16 and the end portion of the lever 16 descends. Therefore, the water stop valve 17 is lowered by its own weight, and the packing of the water stop valve 17 comes into contact with the valve seat 5, so that the first drainage flow path is closed as shown in FIG.
In the lowered state of the water stop valve 17, water or the like discharged from the faucet F flows into the adapter 4 from the drain port B1 through the drain port main body 2, but as shown in FIG. 3, the water stop valve 17 causes the water to flow into the adapter 4. Since the first drainage channel is blocked, the water or the like that has flowed into the adapter 4 flows into the second drainage channel from the overflow inlet 6.
However, since the second drainage flow path is blocked by the water amount control valve 10, the water or the like flows into the portion blocked by the water amount control valve 10, and the water or the like flows into the tank body B. It is stored.
Further, when water is discharged from the faucet F, as shown in FIG. 5, the water level in the tank body B rises, the float 18 rises due to buoyancy, and the flange portion of the float 18 rises in the drainage flow path on the upstream side. It abuts on the inner circumference. At this time, a difference occurs between the water level of the second drainage channel and the tank body B, and the pressure is applied from the upstream side to the downstream side (from the left side to the right side in FIG. 3) with respect to the water amount control valve 10 based on the difference in the water level. Join. When the pressure is smaller than the repulsive force of the magnet 11, the water amount control valve 10 maintains the blockage, but when water is further discharged and the water level in the tank body B reaches a predetermined height, the first (Ii) The pressure based on the difference in water level between the drainage channel and the tank body B exceeds the repulsive force of the magnet 11, and as shown in FIG. 5, the water amount control valve 10 is pushed downstream to open the second drainage channel. To. Therefore, when water is discharged further from the state in which water or the like is stored in the tank body B up to a predetermined water level, the water or the like in the second drainage flow path enters the adapter 4 from the overflow discharge port 7 via the folded-back portion 8. Inflow. The water or the like that has flowed into the adapter 4 merges with the first drainage channel at the confluence portion 9, and is discharged to a pipe (not shown) on the sewage side via the drain trap 19.
That is, when the water level exceeds the predetermined water level, all the surplus water and the like are discharged to the pipe on the sewage side through the second drainage channel, so that the water level of the tank body B is kept constant. Excess water or the like does not overflow from the upper edge of the tank body B.
Then, when the water level of the tank body B becomes lower than the predetermined height due to the end of water discharge from the faucet F, the operation of the drain faucet device 13 and the rise of the water stop valve 17, the pressure due to the water or the like is applied to the magnet 11. Below the repulsive force, the water amount control valve 10 moves to the left side again due to the repulsion of the magnet 11, and blocks the second drainage flow path.
When water is stored in the tank body B, the float 18 rises due to buoyancy, and the flange portion abuts on the inner circumference of the drainage flow path on the upstream side, so that the second drainage flow path becomes dirty. -It is possible to prevent dust and the like from flowing back into the tank body B. On the other hand, since the float 18 descends when a pressure from above is applied, even if the float 18 is in an elevated state, it does not hinder the discharge of water or the like from the upstream side.

The first embodiment of the present invention is as described above, but according to the present invention, by providing the water amount control valve 10 that opens the second drainage flow path when the water level in the tank body B exceeds a certain level, the first embodiment is provided. (Ii) The drainage flow path can be miniaturized, and it can be attached to equipment that cannot be adopted by conventional drainage pipes.
Further, in the drainage pipe of the present invention, the position of the magnet 11b can be adjusted by rotating the knob portion, and the repulsive force applied to the magnet 11a can be adjusted. That is, the present invention makes it possible to adjust the water level of water or the like that can be stored in the tank body B by adjusting the magnetic force applied to the water amount control valve 10.

In the first embodiment, the water amount control valve 10 operates substantially horizontally while maintaining the inclination of the water stop surface, but a hinge portion is provided above the water stop surface so as to rotate around the hinge portion. The second drainage channel may be blocked / opened.

Next, the second embodiment of the present invention will be described with reference to FIGS. 6 to 10. Since only the overflow unit 3 is different from the first embodiment in the second embodiment described below, the same numbers as those in the first embodiment are assigned to other configurations, and the description thereof will be omitted. .. In the second embodiment described below, similarly to the first embodiment, the first drainage flow path opened and closed by the water stop valve 17 and water or the like are stored up to a predetermined water level in the tank body B. In particular, it has a second drainage channel for discharging excess water in the tank body B.

The overflow unit 3 according to the second embodiment is composed of an adapter 4 and a water amount control valve 10.
The adapter 4 has a valve seat 5 inside which the water stop valve 17, which will be described later, comes into contact with the adapter 4, and includes a first drainage flow path that is opened and closed by the water stop valve 17. An overflow inlet 6 opens in the lateral direction on the upstream side (upper side) of the valve seat 5, and an overflow discharge port 7 opens in the lateral direction on the downstream side (lower side) of the valve seat 5. As shown in FIG. 10, the drainage discharged from the overflow discharge port 7 merges with the first drainage channel at the merging portion 9. Further, both the overflow inflow port 6 and the overflow discharge port 7 have a substantially rectangular shape with the horizontal direction on the major axis side, and have a second drainage flow path that is continuous via the folded-back portion 8 and is opened and closed by the water amount control valve 10. I have.
The folded-back portion 8 has a water amount control valve 10 inside, and the second drainage flow path is closed in a state where neither positive pressure nor negative pressure is generated from the upstream side and the downstream side. Further, the folded-back portion 8 is formed with a guide portion (not shown) to prevent the water amount adjusting valve 10 from tilting during operation.
The water amount control valve 10 is a valve body having a water stop surface to which a packing made of rubber or the like is attached on the upstream side (left side), and a valve shaft extending to the outer periphery of the folded-back portion 8 on the downstream side (right side). 12 is provided. Further, in the water amount adjusting valve 10, a spring 20 is arranged between the valve shaft 12 and the outer circumference of the folded-back portion 8. That is, the water amount control valve 10 is urged by the spring 20 in the direction of closing the second drainage flow path, and moves to the downstream side when a pressure equal to or higher than a predetermined value is applied to open the second drainage flow path. It has become. Here, the folded-back portion 8 has a nut 21 on the outer circumference, and the spring 20 can be compressed by rotating the nut 21. Therefore, the water amount adjusting valve 10 can adjust the repulsive force of the spring 20 by rotating the nut 21 to adjust the pressure required to open the second drainage flow path.

The flow of water or the like passing through the drainage pipe of the present invention will be described below.

First, as shown in FIGS. 7 and 9, the flow of water or the like in a state where the switch portion 14 is pulled up will be described. In this state, the inner wire is retracted as the switch portion 14 is pulled up, and the end portion of the lever 16 is in a raised state. Therefore, the water stop valve 17 is pushed up by the lever 16, and the first drainage flow path is in an open state.
When water is discharged from the faucet F in the raised state of the water stop valve 17, the water or the like discharged to the tank body B passes through the drain port main body 2, the adapter 4, and the drain trap 19 from the drain port B1. It is discharged to the pipe on the sewage side (not shown). At this time, a part of the drainage that has flowed into the drain trap 19 is stored in the bottom surface of the drain trap 19 to form a sealing water.

When the switch portion 14 is pushed in from the above state, the inner wire protrudes toward the lever 16 and the end portion of the lever 16 descends. Therefore, the water stop valve 17 is lowered by its own weight, and the packing of the water stop valve 17 comes into contact with the valve seat 5, so that the first drainage flow path is blocked as shown in FIGS. 6 and 8. ..
In the lowered state of the water stop valve 17, water or the like discharged from the faucet F flows into the adapter 4 from the drain port B1 through the drain port main body 2, but as shown in FIG. 8, the water stop valve 17 allows the water or the like to flow into the adapter 4. Since the first drainage channel is blocked, the water or the like that has flowed into the adapter 4 flows into the second drainage channel from the overflow inlet 6.
However, since the second drainage flow path is blocked by the water amount control valve 10, the water or the like flows into the portion blocked by the water amount control valve 10, and the water or the like flows into the tank body B. It is stored.
Further, when water is discharged from the faucet F, the water level in the tank body B rises, the float 18 rises due to buoyancy, and the flange portion of the float 18 comes into contact with the inner circumference of the drainage flow path on the upstream side. At this time, a difference occurs between the water level of the second drainage channel and the tank body B, and the pressure is applied from the upstream side to the downstream side (from the left side to the right side in FIG. 8) with respect to the water amount control valve 10 based on the difference in the water level. Join. In a state where the pressure is smaller than the repulsive force of the spring 20, the water amount control valve 10 maintains the blockage, but when water is further discharged and the water level in the tank body B reaches a predetermined height, FIG. As shown in 10, the pressure based on the difference in water level between the second drainage channel and the tank body B exceeds the repulsive force of the spring 20, and the water amount control valve 10 is pushed downstream to open the second drainage channel. Will be done. Therefore, when water is discharged further from the state in which water or the like is stored in the tank body B up to a predetermined water level, the water or the like in the second drainage flow path enters the adapter 4 from the overflow discharge port 7 via the folded-back portion 8. Inflow. The water or the like that has flowed into the adapter 4 merges with the first drainage channel at the confluence portion 9, and is discharged to a pipe (not shown) on the sewage side via the drain trap 19.
That is, when the water level exceeds the predetermined water level, all the surplus water and the like are discharged to the pipe on the sewage side through the second drainage channel, so that the water level of the tank body B is kept constant. Excess water or the like does not overflow from the upper edge of the tank body B.
Then, when the water level of the tank body B becomes lower than the predetermined height due to the end of water discharge from the faucet F, the operation of the drain faucet device 13 and the rise of the water stop valve 17, the pressure due to the water or the like is applied to the spring 20. Below the repulsive force, the water amount control valve 10 moves to the left side again due to the repulsion of the magnet 11, and blocks the second drainage flow path.
When water is stored in the tank body B, the float 18 rises due to buoyancy, and the flange portion abuts on the inner circumference of the drainage flow path on the upstream side, so that the second drainage flow path becomes dirty. -It is possible to prevent dust and the like from flowing back into the tank body B. On the other hand, since the float 18 descends when a pressure from above is applied, even if the float 18 is in an elevated state, it does not hinder the discharge of water or the like from the upstream side.

The second embodiment of the present invention is described above. However, according to the present invention, by providing the water amount control valve 10 that opens the second drainage flow path when the water level in the tank body B exceeds a certain level (Ii) The drainage channel can be miniaturized, and it can be attached to equipment that cannot be used with conventional drainage pipes.
In the drainage pipe of the present invention, the repulsive force of the spring 20 can be adjusted by rotating the nut 21. That is, the present invention makes it possible to adjust the water level of water or the like that can be stored in the tank body B by adjusting the force applied to the water amount control valve 10.

In the second embodiment, the water amount control valve 10 operates substantially horizontally while maintaining the inclination of the water stop surface, but a hinge portion is provided above the water stop surface so as to rotate around the hinge portion. The second drainage channel may be blocked / opened.

Next, the third embodiment of the present invention will be described with reference to FIGS. 11 to 14. Since only the overflow unit 3 is different from the first embodiment in the third embodiment described below, the same numbers as those in the first embodiment are assigned to other configurations, and the description thereof will be omitted. .. In the third embodiment described below, similarly to the first embodiment, the first drainage flow path opened and closed by the water stop valve 17 and water and the like are stored up to a predetermined water level in the tank body B. In particular, it has a second drainage channel for discharging excess water in the tank body B.

The overflow unit 3 according to the third embodiment is composed of an adapter 4 and a water amount control valve 10.
The adapter 4 has a valve seat 5 inside which the water stop valve 17, which will be described later, comes into contact with the adapter 4, and includes a first drainage flow path that is opened and closed by the water stop valve 17. An overflow inlet 6 opens in the lateral direction on the upstream side (upper side) of the valve seat 5, and an overflow discharge port 7 opens in the lateral direction on the downstream side (lower side) of the valve seat 5. As shown in FIG. 14, the drainage discharged from the overflow discharge port 7 merges with the first drainage channel at the merging portion 9. Further, both the overflow inlet 6 and the overflow outlet 7 have a substantially rectangular shape with the horizontal direction on the major axis side, and after being bent substantially vertically at a predetermined position, they are continuous via the folded-back portion 8 and the water amount control valve 10 It has a second drainage channel that is opened and closed by.
The folded-back portion 8 has a water amount control valve 10 inside, and the second drainage flow path is closed in a state where neither positive pressure nor negative pressure is generated from the upstream side and the downstream side.
The water amount control valve 10 is a valve body made of a sphere having a specific gravity larger than that of water, and is seated at the downstream end of the overflow inlet 6. That is, the water amount control valve 10 is urged by its own weight in a direction of blocking the second drainage flow path, and when a pressure equal to or higher than a predetermined value is applied, the water amount control valve 10 is pushed up to the downstream side (upward) and moves to the second drainage. It has a structure that opens the flow path.

The flow of water or the like passing through the drainage pipe of the present invention will be described below.

First, as shown in FIG. 13, the flow of water or the like in a state where the switch unit 14 is pulled up will be described. In this state, the inner wire is retracted as the switch portion 14 is pulled up, and the end portion of the lever 16 is in a raised state. Therefore, the water stop valve 17 is pushed up by the lever 16, and the first drainage flow path is in an open state.
When water is discharged from the faucet F while the water stop valve 17 is in the raised state, the water or the like discharged to the tank body B passes through the drain port main body 2, the adapter 4, and the drain trap 19 from the drain port B1. It is discharged to the pipe on the sewage side (not shown). At this time, a part of the drainage that has flowed into the drain trap 19 is stored in the bottom surface of the drain trap 19 to form a sealing water.

When the switch portion 14 is pushed in from the above state, the inner wire protrudes toward the lever 16 and the end portion of the lever 16 descends. Therefore, the water stop valve 17 is lowered by its own weight, and the packing of the water stop valve 17 comes into contact with the valve seat 5, so that the first drainage flow path is blocked as shown in FIGS. 11 and 12. ..
In the lowered state of the water stop valve 17, water or the like discharged from the faucet F flows into the adapter 4 from the drain port B1 through the drain port main body 2, but as shown in FIG. 12, the water stop valve 17 causes the water to flow into the adapter 4. Since the first drainage channel is blocked, the water or the like that has flowed into the adapter 4 flows into the second drainage channel from the overflow inlet 6.
However, since the second drainage flow path is blocked by the water amount control valve 10, the water or the like flows into the portion blocked by the water amount control valve 10, and the water or the like flows into the tank body B. It is stored.
Further, when water is discharged from the faucet F, the water level in the tank body B rises, the float 18 rises due to buoyancy, and the flange portion of the float 18 comes into contact with the inner circumference of the drainage flow path on the upstream side. At this time, a difference occurs between the water level of the second drainage channel and the tank body B, and the pressure is applied from the upstream side to the downstream side (from the lower side to the upper side in FIG. 12) with respect to the water amount control valve 10 based on the difference in the water level. Join. When the pressure is less than the weight of the water amount control valve 10, the water amount control valve 10 maintains the blockage, but when water is further discharged and the water level in the tank body B reaches a predetermined height, As shown in FIG. 14, the pressure based on the difference between the water level of the second drainage channel and the tank body B exceeds the own weight of the water amount control valve 10, and the water amount control valve 10 is pushed up to the downstream side (upward). The drainage channel is opened. Therefore, when water is discharged further from the state in which water or the like is stored in the tank body B up to a predetermined water level, the water or the like in the second drainage flow path enters the adapter 4 from the overflow discharge port 7 via the folded-back portion 8. Inflow. The water or the like that has flowed into the adapter 4 merges with the first drainage channel at the confluence portion 9, and is discharged to a pipe (not shown) on the sewage side via the drain trap 19.
That is, when the water level exceeds the predetermined water level and is to be stored, all the surplus water or the like is discharged to the pipe on the sewage side through the second drainage channel, so that the water level in the tank body B is kept constant. , Excess water and the like do not overflow from the upper edge of the tank body B.
Then, when the water level in the tank body B becomes lower than the predetermined height due to the end of water discharge from the faucet F, the operation of the drainage faucet device 13 and the rise of the water stop valve 17, the pressure due to the water or the like is adjusted. The weight of the valve 10 falls below its own weight, and the water volume control valve 10 descends to block the second drainage flow path.
When water is stored in the tank body B, the float 18 rises due to buoyancy, and the flange portion abuts on the inner circumference of the drainage flow path on the upstream side, so that the second drainage flow path becomes dirty. -It is possible to prevent dust and the like from flowing back into the tank body B. On the other hand, since the float 18 descends when a pressure from above is applied, even if the float 18 is in an elevated state, it does not hinder the discharge of water or the like from the upstream side.

The third embodiment of the present invention is as described above. However, according to the present invention, by providing the water amount control valve 10 that opens the second drainage flow path when the water level in the tank body B exceeds a certain level, the third embodiment is provided. (Ii) The drainage flow path can be miniaturized, and it can be attached to equipment that cannot be adopted by conventional drainage pipes.

In the third embodiment, the water amount control valve 10 is a valve body made of a sphere, but various shapes such as an ellipse and a non-circular shape may be adopted. Further, the water amount control valve 10 may have a hinge portion at one end, and the second drainage flow path may be closed / opened by its own weight with the hinge portion as an axis.

Next, a fourth embodiment of the present invention will be described with reference to FIGS. 15 to 18. Since only the overflow unit 3 and the drain plug device 13 are different from the first embodiment in the fourth embodiment described below, the same numbers as those in the first embodiment are assigned to other configurations. The explanation will be omitted. In the fourth embodiment described below, similarly to the first embodiment, the first drainage flow path opened and closed by the water stop valve 17 and water and the like are stored up to a predetermined water level in the tank body B. In particular, it has a second drainage channel for discharging excess water in the tank body B.

The overflow unit 3 according to the fourth embodiment is composed of an adapter 4 and a water amount control valve 10.
The adapter 4 has a valve seat 5 inside which the water amount control valve 10 described later comes into contact with the adapter 4, and the water amount control valve 10 has a water stop valve 17 inside. Therefore, the adapter 4 includes a first drainage flow path opened and closed by the water stop valve 17 and a second drainage flow path opened and closed by the water amount control valve 10.
The water amount control valve 10 is composed of a valve portion 22, a valve shaft 12, and a weight 23, and is rotatably fixed to the adapter 4 about a fulcrum 24. The valve portion 22 is a valve body having a water stop surface to which a packing made of rubber or the like is attached on the upstream side (upper side), has a plan view ring shape, and a water stop valve 17 described later is fixed inside. There is. The valve shaft 12 is arranged so as to penetrate the inside and outside of the adapter 4, a valve portion 22 is attached to the end on the inside side of the adapter 4, a weight 23 is attached to the other end (outside side of the adapter 4), and the valve shaft 12 rotates to the adapter 4 at the fulcrum 24. It is fixed as possible. In the water volume control valve 10, the valve portion 22 is urged upward by the weight of the weight 23, and the second drainage flow path is closed in a state where neither positive pressure nor negative pressure is generated from the upstream side and the downstream side. There is. On the other hand, when a pressure equal to or higher than a predetermined value is applied to the valve portion 22, the valve portion 22 rotates to the downstream side (downward) to open the second drainage flow path. Here, the water amount adjusting valve 10 can adjust the strength of the upward pressure applied to the valve portion 22 depending on the position where the weight 23 is attached. That is, the water amount adjusting valve 10 increases the pressure applied to the valve portion 22 by moving the weight 23 toward the end side (the side away from the adapter 4) of the valve shaft 12, and moves the weight 23 toward the fulcrum 24 side to the valve portion 22. The applied pressure can be weakened, and the pressure required to open the second drainage channel can be adjusted.

The drain plug device 13 is a device for remotely operating the water stop valve 17, and is composed of a switch unit 14 and a release wire 15.
The water stop valve 17 is a valve body in which packing is fitted around the water stop valve 17, and is arranged inside the valve portion 22 of the water amount control valve 10. When the packing comes into contact with the valve portion 22, the first drainage flow flows. Block the road.
The switch unit 14 is an operation unit that manually pushes and pulls, and is arranged on the top surface of the cabinet K and on the back surface of the faucet F.
The release wire 15 is a member in which an inner wire, which is a stranded metal wire, is slidably arranged in a tubular outer tube, and has rigidity in the axial direction and flexibility in the side direction. One end of the release wire 15 is connected to the lower end of the switch portion 14, and the other end is attached to the water stop valve 17. The release wire 15 has a structure in which the inner wire retracts / protrudes in response to the pushing operation of the switch unit 14, and the operation applied to the switch unit 14 is directly transmitted to the water stop valve 17.
That is, when the switch portion 14 is pushed in, the inner wire protrudes and pushes up the water stop valve 17, so that the water stop valve 17 is separated from the valve portion 22 and the first drainage flow path is opened. Further, when the switch portion 14 is pulled up, the inner wire retracts, and the water stop valve 17 is pulled downward to descend, and the first drainage flow path is closed.

The flow of water or the like passing through the drainage pipe of the present invention will be described below.

First, as shown in FIG. 17, the flow of water or the like in a state where the switch unit 14 is pushed in will be described. In this state, the inner wire protrudes as the switch portion 14 is pushed in, and the water stop valve 17 is pushed up by the protrusion to open the first drainage flow path.
When water is discharged from the faucet F while the water stop valve 17 is in the raised state, the water or the like discharged to the tank body B passes through the drain port main body 2, the adapter 4, and the drain trap 19 from the drain port B1. It is discharged to the pipe on the sewage side (not shown). At this time, a part of the drainage that has flowed into the drain trap 19 is stored in the bottom surface of the drain trap 19 to form a sealing water.
At this time, the water volume adjusting valve 10 is in a state where the valve portion 22 is in contact with the valve seat 5, and the second drainage flow path is in a closed state.

When the switch portion 14 is pulled up from the above state, the inner wire retracts to the switch portion 14 side, and the water stop valve 17 descends. Therefore, when the packing of the water stop valve 17 comes into contact with the valve portion 22 of the water amount control valve 10, the first drainage flow path is closed as shown in FIGS. 15 and 16.
In the lowered state of the water stop valve 17, water or the like discharged from the faucet F flows into the adapter 4 from the drain port B1 through the drain port main body 2, but as shown in FIG. 16, the water stop valve 17 allows the water or the like to flow into the adapter 4. Since the first drainage channel is blocked and the second drainage channel is blocked by the water amount control valve 10, the water or the like is stored in the tank body B.
Further, when water is discharged from the faucet F, the water level in the tank body B rises. At this time, pressure is applied from the upstream side to the downstream side (from the upper side to the lower side in FIG. 16) with respect to the valve portion 22 of the water amount control valve 10 by the water or the like stored above the water amount control valve 10. In a state where the pressure is smaller than the upward pressure applied to the valve portion 22 by the weight 23, the water amount control valve 10 maintains the blockage of the second drainage flow path, but further water is discharged and the tank body B When the water level of the water reaches a predetermined height, as shown in FIG. 18, the pressure based on the water level stored on the water amount control valve 10 exceeds the pressure due to the weight 23, and the water amount control valve 10 moves to the downstream side. It is pushed and rotated, and the second drainage channel is opened. Therefore, when water is discharged further than the state in which water or the like is stored in the tank body B up to a predetermined water level, the water or the like in the second drainage flow path pushes down the valve portion 22 and passes through the drain trap 19 to the sewage side. It is discharged to the pipe (not shown).
That is, when the water level exceeds the predetermined water level, all the surplus water and the like are discharged to the pipe on the sewage side through the second drainage channel, so that the water level of the tank body B is kept constant. Excess water or the like does not overflow from the upper edge of the tank body B.
Then, when the water level of the tank body B becomes lower than the predetermined height due to the end of water discharge from the faucet F, the operation of the drain faucet device 13 and the rise of the water stop valve 17, the pressure due to the water or the like is increased by the weight 23. Below the pressure, the valve portion 22 rises again due to the weight of the weight 23, blocking the second drainage flow path.

The fourth embodiment of the present invention is as described above. However, according to the present invention, by providing the water amount control valve 10 that opens the second drainage flow path when the water level in the tank body B exceeds a certain level, the fourth embodiment is provided. (Ii) The drainage flow path can be miniaturized, and it can be attached to equipment that cannot be adopted by conventional drainage pipes.
Further, in the fourth embodiment, since the first drainage channel and the second drainage channel are formed in the same pipe, it is not necessary to provide a pipe for the second drainage channel.

Next, a fifth embodiment of the present invention will be described with reference to FIGS. 19 to 21. Since the fifth embodiment described below is attached to the wash basin S and the tank body B similar to the first embodiment, the wash basin S and the tank body B have the same code numbers as those of the first embodiment. The description is omitted, and only the drainage pipe 1 communicating with the drainage port B1 of the tank body B will be described.

The drainage pipe 1 is a pipe that communicates with the drainage port B1 to form a drainage flow path, and is composed of a drainage port main body 2, a water amount control valve 10, and a drainage trap 19. The water amount control valve 10 in the present embodiment also serves as a water stop valve 17.

The drainage port main body 2 has a substantially cylindrical shape having a flange at the upper part, and is inserted through the drainage port B1. Further, the drainage port main body 2 has a valve seat 5 with which the water amount adjusting valve 10 abuts, and a male screw is formed on the outer periphery of the tubular portion, and the nut is arranged on the back surface (lower surface) of the tank body B. The peripheral edge of the drain port B1 is sandwiched by screwing. A packing is arranged between the flange of the drain port main body 2 and the bottom surface of the tank body B, and the drain port main body 2 is watertightly connected to the tank body B. Further, the lower end of the drain port main body 2 is attached to the drain trap 19 by packing and nuts.

The water amount adjusting valve 10 is a valve body composed of a valve portion 22 having a packing fitted around it and a valve shaft 12 extending from the back side of the valve portion 22, and the valve shaft is fixed to the drain port main body 2. .. The valve shaft 12 is provided with a lock mechanism (not shown) and a motor (not shown) inside, and the valve portion 22 is raised / lowered each time a pushing operation is applied to the valve portion 22 to provide packing. Can repeatedly contact / separate with respect to the valve seat 5 and hold the contact / separation state with the lock mechanism. Further, the valve portion 22 is provided with a water pressure sensing mechanism 25 inside.
The water pressure sensing mechanism 25 is a device that detects the water pressure applied on the valve portion 22 when water or the like is stored inside the tank body B, and drives the motor when a predetermined water pressure or more is applied to the valve portion 22. The valve portion 22 is raised. Then, when the water pressure applied to the valve portion 22 becomes equal to or less than a predetermined value, the motor can be driven again to lower the valve portion 22 and bring the packing into contact with the valve seat 5.

The drain trap 19 is a pipe trap having a substantially S-shaped side view, and has an effect of forming a sealing water by storing a part of the drainage inside and preventing the invasion of odors and pests from the downstream side. .. The lower end of the drain trap 19 is connected to a pipe (not shown), and the drainage flowing into the trap 19 is discharged to the pipe on the sewage side.

The flow of water or the like passing through the drainage pipe of the present invention will be described below.

First, as shown in FIG. 21, the flow of water or the like in a state where the water amount control valve 10 is raised and separated from the valve seat 5 will be described. In this state, the drainage flow path formed inside the drainage port main body 2 is open.

In the raised state of the water amount adjusting valve 10, the lock mechanism engages with a gear (not shown) arranged inside, so that the water amount controlling valve 10 is raised, that is, the valve portion 22 is separated from the valve seat 5. Holds.
When water is discharged from the faucet F while the water amount control valve 10 is in the raised state, the water or the like discharged to the tank body B passes through the drain port main body 2 and the drain trap 19 from the drain port B1 and is on the sewage side. It is discharged to the pipe (not shown). At this time, a part of the drainage that has flowed into the drain trap 19 is stored in the bottom surface of the drain trap 19 to form a sealing water.

When a pushing operation is applied to the valve portion 22 from the above state, the valve portion 22 is lowered and the lowered state is held by the lock mechanism. Therefore, when the packing of the valve portion 22 comes into contact with the valve seat 5, the drainage flow path formed inside the drainage port main body 2 is closed as shown in FIG. That is, in the present embodiment, the water amount control valve 10 also functions as a water stop valve 17 that closes the drainage flow path.
Since the drainage flow path is blocked by the water amount control valve 10 in the lowered state of the water amount control valve 10, the water or the like discharged from the faucet F is stored in the tank body B.
When the water discharge from the faucet F is continued and the water level in the tank body B exceeds a predetermined height, the water pressure sensing mechanism 25 detects the water level in the tank body B from the water pressure applied to the valve portion 22 and drives the motor. Let me. The valve portion 22 is raised by the drive of the motor, the drainage flow path is opened, and water or the like in the tank body B is discharged to the sewage side pipe (not shown) through the drainage port main body 2 and the drainage trap 19. Since the state in which the valve portion 22 is raised by driving the motor is the same as in FIG. 21, the description thereof is omitted.
That is, when the water level exceeds the predetermined water level, the valve portion 22 is raised by the water pressure sensing mechanism 25, and excess water or the like is discharged to the pipe on the sewage side, so that the water level of the tank body B is kept constant. It will be dripping, and excess water or the like will not overflow from the upper edge of the tank body B.
Then, when the water discharge from the faucet F is completed, the drain plug device 13 is operated and the water amount control valve 10 rises, the water level in the tank body B becomes lower than the predetermined height, and the water pressure applied to the valve portion 22 is increased. When the water pressure becomes less than the predetermined value, the water pressure sensing mechanism 25 drives the motor again to lower the valve portion 22, and brings the packing into contact with the valve seat 5 to block the drainage flow path.

The fifth embodiment of the present invention is as described above, but according to the present invention, the conventional drainage is provided by providing the water amount control valve 10 that opens the drainage flow path when the water level in the tank body B exceeds a certain level. It is possible to add an overflow mechanism to equipment that could not be used for piping.
Further, in the drainage pipe of the present invention, it is not necessary to separately provide a second drainage flow path constituting the overflow mechanism as in each of the above embodiments.

In the fifth embodiment, the water amount control valve 10 (water stop valve 17) is provided with a water pressure sensing mechanism 25, and the water level in the tank body B is sensed from the water pressure applied on the valve portion 22. Even if the structure is such that instead of the water pressure sensing mechanism 25, a water level detecting mechanism for detecting the water level is provided in the tank body B to directly detect the water level and drive the motor to raise / lower the valve portion 22. good.
Further, the water amount adjusting valve 10 does not necessarily have to also serve as the water stop valve 17, and a water stop valve 17 may be separately provided in addition to the water pressure sensing mechanism 25 or the water amount adjusting valve 10 having the water level sensing mechanism. In this case, the tank body B may have two drainage ports B1 open on the bottom surface.

Next, the sixth embodiment of the present invention will be described with reference to FIGS. 22 to 24. Since the sixth embodiment described below is attached to the wash basin S and the tank body B similar to the first embodiment, the wash basin S and the tank body B have the same code numbers as those of the first embodiment. The description is omitted, and only the drainage pipe 1 communicating with the drainage port B1 of the tank body B will be described. In the sixth embodiment described below, similarly to the first embodiment, the first drainage flow path opened and closed by the water stop valve 17 and water and the like are stored up to a predetermined water level in the tank body B. In particular, it has a second drainage channel for discharging excess water in the tank body B.

The drainage pipe 1 is a pipe that communicates with the drainage port B1 to form a drainage flow path, and is composed of a drainage port main body 2, a water stop valve 17, a water amount control valve 10, and a drain trap 19.

The drainage port main body 2 has a substantially cylindrical shape having a flange at the upper part, and is inserted through the drainage port B1. Further, the drainage port main body 2 has a valve seat 5 with which the water stop valve 17 abuts inside, and a male screw is formed on the outer periphery of the tubular portion, and the nut is arranged on the back surface (lower surface) of the tank body B. The peripheral edge of the drain port B1 is sandwiched by screwing. A packing is arranged between the flange of the drain port main body 2 and the bottom surface of the tank body B, and the drain port main body 2 is watertightly connected to the tank body B. Further, the lower end of the drain port main body 2 is attached to the drain trap 19 by packing and nuts.

The water stop valve 17 is composed of a valve portion 22 made of an elastic material such as silicon rubber, a main body portion 27 made of a hard resin material, and a chain portion 28 attached above the main body portion 27. The valve portion 22 is provided on the outer periphery of the main body portion 27, and when the valve portion 22 comes into contact with the valve seat 5 of the drain port main body 2, the drainage flow path is watertightly closed. The main body 27 has an opening in the center to which a water amount control valve 10 described later is attached. The chain portion 28 is a ball chain having one end connected to the main body portion 27 and the other end connected to the tank body B.

The water amount control valve 10 is made of an elastic material such as silicon or rubber, has a funnel shape in front view in which one end of a cylinder is overlapped, has a drainage flow path inside, and has a mounting portion 29, an inclined surface 30, and opening / closing. It is composed of a part 31. The mounting portion 29 is the upper end of the water amount adjusting valve 10 and is fitted to a convex portion formed on the inner circumference of the main body portion 27 of the water stop valve 17. The inclined surfaces 30 extend from below the mounting portion 29 toward the downstream side on both side surfaces of the water amount control valve 10, and one inclined surface 30 is formed so as to gradually approach the opposite inclined surfaces 30. There is. The opening / closing portion 31 is formed at the lower end of the water amount control valve 10, and the opposing inner peripheral surfaces of the inclined surfaces 30 abut against each other on the central axis of the water amount control valve 10 and extend in the vertical direction in the contacted state. It is composed by being done. That is, the opening / closing portion 31 maintains a closed state in a state where neither positive pressure nor negative pressure is applied from the upstream side and the downstream side.

The water amount control valve 10 has a structure in which the opening / closing portion 31 is expanded from the inside when a pressure (water pressure or the like) equal to or higher than a predetermined value is applied from the upstream side to open the flow path. That is, in the present embodiment, the drainage port main body 2 forms a first drainage flow path inside the drainage port main body 2 which is opened and closed by the water stop valve 17, and the water amount adjusting valve 10 attached to the water stop valve 17 is the tank body B. A second drainage channel is formed to discharge excess water in the tank body B when water or the like is stored up to a predetermined water level inside.

The drain trap 19 is a pipe trap having a substantially S-shaped side view, and has an effect of forming a sealing water by storing a part of the drainage inside and preventing the invasion of odors and pests from the downstream side. .. The lower end of the drain trap 19 is connected to a pipe (not shown), and the drainage flowing into the trap 19 is discharged to the pipe on the sewage side.

The flow of water or the like passing through the drainage pipe of the present invention will be described below.

First, the flow of water or the like in a state where the water stop valve 17 is separated from the valve seat 5 will be described. In this state, the drainage flow path formed inside the drainage port main body 2 is open.

When water is discharged from the faucet F in a state where the water stop valve 17 is separated from the valve seat 5, the water or the like discharged to the tank body B flows into the first drainage channel from the drain port B1. , Passes through the drain port main body 2 and the drain trap 19, and is discharged to a pipe (not shown) on the sewage side. At this time, a part of the drainage that has flowed into the drain trap 19 is stored in the bottom surface of the drain trap 19 to form a sealing water.

From the above state, when the water stop valve 17 was attached to the drain port main body 2 and the valve portion 22 was brought into contact with the valve seat 5, the drain flow path in the drain port main body 2 was blocked as shown in FIG. It becomes a state. At this time, the first drainage channel is blocked by the water stop valve 17, and the second drainage channel is blocked by the water amount control valve 10.
Since the first drainage flow path is blocked by the water stop valve 17 in the state where the water stop valve 17 is attached to the drain port main body 2, the water or the like discharged from the faucet F is stored in the tank body B. Will be done. At this time, when the pressure applied to the water amount control valve 10 based on the water level in the tank body B is lower than the pressure at which the opening / closing portion 31 can be closed, the opening / closing portion 31 maintains the closing.
When the water discharge from the faucet F is continued and the water level in the tank body B exceeds a predetermined height, the pressure applied to the water amount control valve 10 based on the water level in the tank body B can be blocked by the opening / closing portion 31. Exceed the pressure. At this time, the opening / closing portion 31 is pushed open from the inside by the pressure, and as shown in FIG. 23, the opening / closing portion 31 is opened and the second drainage flow path is opened. Therefore, when water is discharged further from the state in which water or the like is stored in the tank body B to a predetermined water level, the surplus water or the like flows in from the second drainage channel and passes through the drainage port main body 2 and the drainage trap 19. It is discharged to the pipe on the sewage side (not shown).
That is, when the water level exceeds the predetermined water level and is to be stored, all the surplus water or the like is discharged to the pipe on the sewage side through the second drainage channel, so that the water level in the tank body B is kept constant. , Excess water and the like do not overflow from the upper edge of the tank body B.
Then, when the water level in the tank body B becomes lower than the predetermined height due to the end of water discharge from the faucet F, the pulling up of the water stop valve 17, etc., the pressure due to the water or the like falls below the pressure at which the opening / closing portion 31 can be closed. The opening / closing portion 31 is closed by its own elasticity to close the second drainage flow path.

The sixth embodiment of the present invention is described above. However, according to the present invention, by providing the water amount control valve 10 that opens the second drainage flow path when the water level in the tank body B exceeds a certain level, the sixth embodiment is provided. (Ii) The drainage flow path can be miniaturized, and it can be attached to equipment that cannot be adopted by conventional drainage pipes.
Further, in the present invention, the overflow mechanism can be retrofitted to the equipment only by attaching the water stop valve 17 having the water amount control valve 10.

In the sixth embodiment of the present invention, the opening / closing portion 31 of the water amount control valve 10 arranged inside the water stop valve 17 maintains the closed state to maintain the water level in the tank body B. .. Therefore, by replacing the water amount adjusting valve 10 attached to the water stop valve 17, the water level that can be stored in the tank body B can be appropriately changed. For example, if the pressure required to expand the opening / closing portion 31 increases, such as by attaching a water amount adjusting valve 10 having high hardness, the water level that can be stored in the tank body B increases.

Although each embodiment of the present invention is described above, the present invention is not limited to the embodiments described in each embodiment, and can be appropriately modified without departing from the gist of the invention. For example, in the drainage pipe described in the third embodiment, since an air pool is generated in the flow path between the water amount control valve 10 and the drain trap 19, a ventilation valve is provided in the drainage flow path to provide the flow path. The structure may be such that air is discharged into the cabinet K.
Further, the present invention may be adopted for a wash basin having a shape in which the wash basin directly protrudes from the wall surface, in addition to the wash basin having the shape described in each of the above embodiments. Further, the tank body B is not limited to the washbasin, but may be a sink of a sink or a bathtub of a bathroom.

1 Drain pipe 2 Drain port body 3 Overflow unit 4 Adapter 5 Valve seat 6 Overflow inflow port 7 Overflow discharge port 8 Folded part 9 Confluence part 10 Water volume control valve 11a, 11b Magnet 12 Valve shaft 13 Drain plug device 14 Switch part 15 Release wire 16 Lever 17 Water stop valve 18 Float 19 Drain trap 20 Spring 21 Nut 22 Valve part 23 Weight 24 Support point 25 Water pressure sensing mechanism 27 Main body 28 Chain part 29 Mounting part 30 Inclined surface 31 Opening and closing part S Washbasin B Tank body B1 Drainage port B2 veneer F faucet K cabinet

Claims (4)

It is a drainage pipe that drains the tank body.
Comprises a water amount adjusting valve the water level of the tank body to open the drain passage when a certain level or more,
The tank body has a drainage port opened on the bottom surface and
Equipped with a drainage pipe that communicates with the drainage port to form a drainage channel
The water amount control valve constitutes a part of a water stop valve capable of storing water discharge or the like in the tank by blocking the drainage flow path.
The water stopcock includes a main body made of a hard material and a water stop part made of an elastic material provided on the outer periphery of the main body, and a water amount adjusting valve is attached to the main body.
The water stopcock is a drainage pipe characterized in that a drainage flow path that communicates with itself in the vertical direction is formed inside, and a water amount control valve closes the drainage flow path . The water amount control valve
The drainage pipe according to claim 1, wherein the drainage pipe is urged in a direction of blocking the drainage flow path by repulsion or suction of a magnet. The water amount control valve
The drainage pipe according to claim 1, wherein the drainage pipe is urged in a direction of closing the drainage flow path by repulsion or contraction of a spring. The water amount control valve
The drainage pipe according to claim 1, wherein the drainage pipe is made of an elastic material and includes an opening / closing portion that closes the flow path when the inner peripheral surfaces abut against each other.

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