JP5531191B2 - Drain trap - Google Patents

Description

  The present invention relates to a drain trap used for a bathtub / bathroom, a washing machine pan, a wash basin, a sink, and the like.

  Conventionally, various household appliances that generate drainage by use (hereinafter referred to as “drainage equipment”) such as bathtubs / bathrooms, washing machine pans, washstands, sinks, etc., use drainage generated by use as sewage side such as underfloor piping. A drainage device is attached. Among these drainage devices, a drainage device having a function of preventing odors and pests from the sewage side from entering the indoor side is particularly called a drainage trap. There are various types of drain trap structures, but generally well-known drain traps are provided with a portion of the drainage channel that always collects drainage, called sealed water. It is a drainage trap called a sealed type that has the function of preventing odors and pests from the sewage side from entering the indoor side by utilizing the fact that odors and pests cannot pass through. A well-known sealed drainage trap will be described below with reference to the drawings.

The conventional example shown in FIG. 11 shows a state in which a sealed drain trap is applied to a waterproof pan on which a bathtub is placed, and is constituted by the members described below.
The drain trap includes a trap body and a flange member which will be described later.
The trap body has a cylindrical shape with a bottom, has an opening provided with an internal thread on the upper side, and further includes a sealed water bottle part, which will be described later, and a water flow path through which water overflowing the sealed water bottle part flows. It is provided with a provided outlet.
The sealed water bottle portion is a bottomed cylinder, and is provided with an opening through which drainage flows and overflows.
Further, an external drainage port for allowing the drainage of other drainage equipment to flow in is provided on the side surface of the sealed water bottle part, and a branch pipe part is provided from the external drainage port to the outside of the sealed water bottle part. A pipe from the bathtub drain is connected to the branch pipe.
The discharge port is an opening for discharging the waste water in the trap body to the sewage side pipe, and is formed outward from the side surface of the water passage. The inside communicates with the water passage in the trap body. Here, a flow path of drainage from the deodorizing cylinder, which will be described later, to the discharge port through the upper end edge of the sealed water bottle inside the trap body (hereinafter, the path through which this drainage flows is referred to as “drainage channel”) Then, two drainage channels are formed: a drainage channel that passes from the bathtub drainage port through the branch pipe portion to the external drainage port and reaches the discharge port through the upper end of the sealed water bottle portion.
The flange member is a cylindrical member that opens up and down, and is provided with a flange on the upper end, and on the outer peripheral surface is provided with a male screw that engages with the female screw of the opening of the trap body described above, and on the inner peripheral side thereof There is a drain opening.
The deodorizing cylinder is a cylindrical body that is open at both the upper and lower sides, and the upper part is detachably and watertightly fitted with the drainage port of the flange member, and the opening at the lower end is arranged in the sealed water bottle part.
The drainage elbow is a member attached to a bathtub-side mounting portion of a waterproof pan, which will be described later, and has a drainage elbow drainage port that collects drainage on the bathtub-side waterproof pan on which the bathtub is placed. The drainage is configured to be discharged from the drainage port to a branch pipe portion of a drainage trap as a connection destination. Further, the drain elbow drain is configured such that drainage from a bathtub drain described later is discharged through a drain pipe.
Moreover, such a drain trap is applied to a waterproof pan which is a drain device as described below.
The waterproof pan is a drainage device used in the bathroom, and is composed of a part for placing the bathtub and a washing part for the user to wash the body etc., and drainage generated by using the bathroom or bathtub. Has a function to catch. Moreover, the bathtub side attaching part is provided in the side which mounts a bathtub of a waterproof pan, and the washing place side attaching part is provided in the washing place side, respectively.
Moreover, the bathtub is a tank body having a bottomed box shape and opened upward, and is provided with a bathtub drain at the lowest position on the bottom surface.
Further, a drain pipe is connected from the bathtub drain outlet of the bathtub to the drain elbow outlet of the drain elbow.
In addition, an underfloor connection pipe that connects the discharge port to the underfloor pipe is connected to the discharge port of the trap body.

The drain trap described in paragraph 0003 is attached to a waterproof pan as follows.
With the drain trap in the state where the peripheral part of the washing pan side of the waterproof pan is interposed between the female screw of the trap body and the male screw of the flange member, the peripheral part of the waterproof pan is attached to the flange part of the flange member. The trap main body and the flange member are attached and fixed to the waterproof pan.
Moreover, after connecting the drain elbow to the branch pipe portion of the drain trap, the drain elbow is attached and fixed to the bathtub side mounting portion of the waterproof pan.
In addition, the drain pipe is connected from the bathtub drain port of the bathtub to the drain elbow drain port of the drain elbow, and the discharge port of the trap body is connected to the under floor pipe via the under floor connecting pipe.
Further, the deodorizing cylinder is detachably and watertightly fitted into the drainage port of the flange member, and the construction of the drainage trap on the waterproof pan is completed.

In the drain trap pipe configured as described above, when drainage is performed on the waterproof pan on the washing place side, the drainage passes through the deodorization cylinder through the drain opening and the opening above the deodorization cylinder, and enters the sealed water bottle section. It accumulates, overflows from the upper end of the sealing basin, passes through the water channel, reaches the discharge port, and is finally discharged from the discharge port to the sewage side through the underfloor connection pipe and the underfloor pipe.
In the drain trap pipe, when drainage is performed on the bathtub or the bathtub-side waterproof pan, the drainage passes through the drainage elbow from the bathtub drainage port or drainage elbow drainage port, and passes through the external drainage port from the branch pipe part. Collected in the seal basin, overflows from the upper end of the seal basin, passes through the water passage, reaches the discharge port, and is finally discharged from the discharge port to the sewage side through the underfloor connection pipe and the underfloor pipe. .
Further, at this time, the wastewater is collected in the sealed water trough, so that a state in which wastewater called sealed water is accumulated in at least a part of the drainage channel formed in the drain trap. Even if odors and pests flow backward from the sewage side, these odors and pests cannot get over this sealed water, so that it is possible to prevent odors and pests from entering the indoor side. The function of preventing odors and pests from entering the indoor side from the sewage side is called a “trap function”.
JP 2003-336302 A

The sealed water drain trap as described above has the following problems.
In the above-mentioned sealed drain trap, there are three places where the drainage flows into: the drainage port and the bathtub drainage port or the drainage elbow drainage port. The drainage from these three drainage ports merges in the drainage trap, Finally, it is discharged only from the discharge port. For this reason, when a large amount of drainage occurs, the drainage from the outlet does not flow into the drainage, and the drainage from the bathtub drainage or drainage elbow drainage overflows into the drainage outlet or the drainage from the drainage outlet. So-called reverse flow, such as overflowing to the bathtub outlet or drain elbow outlet.
In order to solve this problem, in the invention of Patent Document 1, the flow path from the drain outlet to the discharge outlet and the flow path from the bathtub drain outlet to the discharge outlet are separated by a float wall, It was constituted so that no back flow would occur between.
However, since the float wall is flat and flat, it tends to be inclined in the drain trap, and if the inclination occurs, the position does not align well with the upper end of the sealing trough and the function cannot be performed sufficiently. . In addition, the side surface portion of the float wall is not in contact with the inner side surface of the trap body and the outer side surface of the sealing basin part, and the function of dividing the flow path cannot be sufficiently achieved unless the flow of drainage is suppressed. If the side surface of the float wall is in strong contact with the inner surface of the trap body or the outer surface of the watertight ridge, smooth rise and fall of the float wall is hindered by the friction of the contact portion, resulting in a functionally contradictory configuration. It was.
Furthermore, as is clear from FIG. 3 of Patent Document 1, when drainage is from the bathtub drainage outlet, the flow path on the drainage outlet side is opened, so that backflow from the bathtub drainage outlet to the drainage outlet is prevented. There was a problem that it was not possible.

Further, in recent years, a technique of pressure feed piping that attempts to improve drainage efficiency by generating a negative pressure on the downstream side of the drain piping and siphon effect has been widely studied. Factors that cause negative pressure are various such as self-siphons due to self-drainage, induction siphons due to drainage equipment connected to the downstream side of drainage pipes, mechanical siphons due to machinery such as pumps, etc. In the drainage due to the siphon phenomenon, when a drainage trap as described in Patent Document 1 is connected, in particular, in the mode of FIG. 3 and FIG. Air is drawn. When this air is drawn in due to the siphon effect, the whistle-like noise that draws air or the bubbles of air in the drainage flows or blows into the drainage port where the air is drawn. There was a noise called “Gobo”. This noise can be prevented if drainage is produced only from the drainage outlet as shown in FIG. 2 in Patent Document 1 and the flow path of the bathtub drainage port is closed. 3 and FIG. 4) have not been able to take sufficient measures so far. Further, when a pressure feed pipe is provided on the downstream side, the sealed water stored in the sealed water bottle part is drawn, and the water level in the sealed water bottle part becomes lower than the lower end of the deodorizing cylinder or the upper end of the external inlet, In the flow path in the trap, there is a case where a state from a discharge port to a drainage port or a bathtub drainage port is in a vented state, which is called a breakage. In this broken state, the drain trap cannot perform its function, and there is a problem in that sewage-side odors and pests flow backward from the drain port to the discharge port or the bathtub discharge port.
The present invention has been invented in view of the above problems, and in the drain trap, by providing a drain guide mechanism in the drain flow path, back flow between the drain ports is prevented, and a pressure feed pipe is provided on the downstream side. In such a case, a drain trap is provided for the purpose of preventing noise and breakage.

The drain trap according to claim 1 includes a drain port 1 through which drainage flows, a deodorizing cylinder 2 extending downward from the drain port 1, and an opening below the deodorizing cylinder 2. A closed-bottomed sealed water trough 3 for storing drainage to form a sealed water while storing the opening, a discharge port 4 for discharging waste water overflowing the sealed water trough 3 to sewage, and the like In the drainage trap comprising the external drainage port 5 for allowing the drainage of other drainage equipment to flow into the collar part 3,
A deodorizing cylinder blocking valve 6 that blocks the drainage flow path from the deodorizing cylinder 2 to the discharge port 4, an external drainage opening blocking valve 7 that blocks the drainage flow path from the external draining port 5 to the discharge port 4, and the deodorization cylinder blocking valve The deodorizing cylinder blocking valve 6 and the external drain opening blocking valve 7 are opened so that the external drain opening blocking valve 7 is opened when the function 6 functions, and the deodorizing cylinder blocking valve 6 is opened when the external drain opening blocking valve 7 functions. And a drainage guide mechanism comprising an interlocking portion 8 that interlocks with the drainage trap mechanism.
Here, “the deodorizing cylinder blocking valve 6 or the external drain opening blocking valve 7 functions” means that the drainage channel is blocked by the blocking valve.

The drainage trap according to claim 2, wherein in the drainage trap, the drainage guide mechanism is
A tubular interlocking portion 8, a deodorizing cylinder blocking valve 6 provided by closing the interlocking portion 8 on the lower inner surface of the interlocking portion 8, and an external drainage projecting in the outer peripheral direction from the upper peripheral edge on the upper outer surface of the interlocking portion 8. It is constituted by a drainage guide member 9 comprising a mouth closing valve 7,
When the drainage guide member 9 is moved between the deodorizing cylinder 2 and the sealing jar 3, the deodorizing cylinder closing valve 6 abuts on the lower end of the deodorizing cylinder 2 at the time of ascent, and the lower end of the deodorizing cylinder 2 is closed, and at the lowering, the sealing bottle The drain trap according to Paragraph 0008, wherein the external drain port closing valve 7 is in contact with the upper end of the portion 3 so as to close the opening above the sealing jar portion 3.

  Paragraph 0009, wherein the drain trap according to claim 3 is provided with an elevating guide portion 10 for regulating the drain guide mechanism so that the drain guide mechanism moves up and down at an appropriate position. It is a drainage trap as described in.

The drain trap according to claim 4 is arranged in such a manner that the end of the external drain port 5 on the side of the sealing jar 3 is directed downward in the sealing jar 3 and the lower end of the deodorizing cylinder 2 is flat. Placed adjacent to the external drainage port 5,
The drainage guide mechanism is bent in a U-shape, with a plate-shaped deodorizing cylinder blocking valve 6 on one piece and a plate-shaped external drain opening blocking valve 7 on the other piece, and the bent portion is pivotably pivoted. Thus, when the deodorizing cylinder blocking valve 6 is opened to the maximum, the external drain opening blocking valve 7 is closed, and when the external drain opening blocking valve 7 is opened to the maximum, the deodorizing cylinder blocking valve 6 is closed. The drainage trap according to paragraph 0008, wherein the drainage trap is configured as follows.

  The drainage trap according to claim 5 is the drainage trap according to any one of paragraphs 0008 to 0011, wherein the drainage guide mechanism has a specific gravity of about 1.

  The drain trap according to claim 6 is characterized in that, in the drain trap, a pumping pipe for drawing the drainage by negative pressure is provided downstream of the discharge port 4. The drain trap as described.

The drainage trap of the present invention has the following effects.
In the first aspect of the present invention, since the drain trap is provided with the drain guide mechanism, the external drain port is closed when sufficient drainage is generated from the drain port, and sufficient drainage is generated from the external drain port. In such a case, since the drainage ports are blocked, it is possible to prevent a backflow from occurring between the drainage ports.
In the second aspect of the present invention, it is possible to clarify the specific configuration of the drain trap provided with a drain guide mechanism that moves up and down in conjunction with the deodorizing cylinder block valve and the external drain port block valve.
According to the third aspect of the present invention, in the drain trap having the drain guide mechanism in which the deodorizing cylinder block valve and the external drain port block valve are moved up and down as in the second embodiment, the drain guide mechanism is moved up and down. The operation can be stabilized.
The present invention according to claim 4 clarifies a specific configuration of a drain trap provided with a drain guide mechanism that functions by an axial movement caused by a shaft stop by interlocking the deodorizing cylinder block valve and the external drain port block valve. be able to.
According to the fifth aspect of the present invention, by setting the specific gravity of the drainage guide mechanism to approximately 1, the drainage guide mechanism can be a mechanism that reacts well to the flow of drainage.
According to the sixth aspect of the present invention, when a large amount of drainage occurs, only the drainage from one of the drainage port and the external drainage port occurs, and the other drainage port is blocked by the drainage guide mechanism. For this reason, even in a pressure-feed piping that draws wastewater by negative pressure, only the drainage port that drains water is opened and the other drainage port is closed. It can be set as a suitable drainage trap.

It is sectional drawing of the drain piping which employ | adopted the drain trap of the 1st Example of this invention. It is principal part sectional drawing which shows the state by which the flow path by the side of the drain outlet of a 1st Example was open | released. It is principal part sectional drawing which shows the state by which the flow path by the side of the external drain port of a 1st Example was open | released. It is principal part sectional drawing which shows the state by which the both flow paths by the side of the drain outlet of the 1st Example and the external drain outlet side were open | released simultaneously. It is AA sectional drawing of FIG. It is sectional drawing of the drain piping which employ | adopted the drain trap of the 2nd Example of this invention. It is principal part sectional drawing which shows the state by which the flow path by the side of the drain outlet of 2nd Example was open | released. It is principal part sectional drawing which shows the state by which the flow path by the side of the external drain port of a 2nd Example was open | released. It is principal part sectional drawing which shows the state by which the both flow paths by the side of the drain outlet of the 1st Example and the external drain outlet side were open | released simultaneously. It is BB sectional drawing of FIG. It is sectional drawing of the drain piping which employ | adopted the conventional drain trap.

A first embodiment of the present invention will be described below with reference to the drawings.
The embodiment of the present invention shown in FIGS. 1 to 5 includes a trap body 11, a flange member 12, a deodorizing cylinder 2, a drain elbow 13, a drain guide member 9 forming a drain guide mechanism, and other members described below. Consists of.
The trap body 11 is formed so as to cover the bottomed cylindrical sealed water trough 3 and the upper end of the sealed water trough 3, and a water passage 14 through which drainage overflowing from the sealed water trough 3 flows. It is comprised from the opening provided in the side surface of the water flow path 14 for discharging waste_water | drain, and the opening which provided in the upper part of the water flow path 14 and has an internal thread.
The sealing water trough 3 has a bottomed cylindrical shape and is provided with an opening through which drainage flows.
Furthermore, in order to allow the drainage of other drainage equipment to flow into the side surface of the sealing water trough 3, an external drainage port 5 that is a circular opening is provided,
A branch pipe part 20 is provided from the external drain port 5 to the outside of the sealed water bottle part 3. A pipe from the bathtub drain 15 is connected to the branch pipe portion 20 via a drain elbow 13.
The discharge port 4 is an opening for discharging the waste water in the trap body 11 to the sewage side pipe, and is formed outward from the side surface of the outer wall of the water passage 14. The inside communicates with the inside of the trap body 11. It becomes.
Here, in the trap main body 11, a drainage outlet 1 drainage flow path from the deodorizing cylinder 2 to be described later to the outlet 4 through the upper edge of the sealed water bottle part 3, and a drainage elbow 13 from the bathtub drainage outlet 15, Two drainage flow paths are formed, which are a bathtub drainage flow path that passes through the external drainage port 5 through the branch pipe portion 20 and reaches the discharge port 4 through the upper end of the sealed water bottle portion 3.
The flange member 12 is a cylindrical member opened up and down. The flange member 12 is provided with a flange at the upper end, and provided with a male screw that engages with the female screw of the trap body 11 on the outer peripheral surface. A drain port 1 through which drainage on P flows is opened.
The deodorizing cylinder 2 has a substantially cylindrical shape that is open at both the upper and lower ends, and once the diameter is reduced to a mortar shape from the upper end, the cylindrical portion is lowered downward, and is attached to and detached from the drain port 1 of the flange member 12. Freely and watertightly fitted.
The drainage guide member 9 is a member that is disposed between the deodorizing cylinder 2 and the sealed water bottle part 3 so as to freely move up and down. The interlocking portion 8 having a cylindrical shape smaller than the inner diameter, the deodorizing cylinder closing valve 6 provided by closing the lower end of the interlocking portion 8 on the lower inner surface of the interlocking portion 8, and the outer periphery from the periphery of the upper end of the interlocking portion 8 An external drain port closing valve 7 is provided that is formed of an annular plate-like portion having an outer diameter larger than the outer diameter of the sealed water bottle portion 3 and continuously protruding along the circumference.
The external drain port closing valve 7 is not configured to directly contact the external drain port 5 and close the external drain port 5, but as will be described later, the external drain port 5 flow from the external drain port 5 to the discharge port 4 when closed Since the path is closed before joining the flow path from the drain port 1 to the discharge port 4, the same effect as that of directly blocking the external drain port 5 can be obtained. In the present invention, the external drain port 5 is not directly in contact with the external drain port 5 in this way, but the external drain port 5 from the external drain port 5 to the discharge port 4 is connected to the drain port 1. By closing before joining the flow path leading to the discharge port 4, a valve that can obtain the same effect as directly closing the external drain port 5 is brought into direct contact with the external drain port 5. The external drain closing valve 7 is the same as the closing valve.
Further, in the drainage guide member 9, the upper surface of the deodorizing cylinder blocking valve 6 (surface that contacts the lower end of the deodorizing cylinder 2) and the lower surface of the external drain opening blocking valve 7 (surface that contacts the upper end of the sealing water bottle portion 3). An elastic surface made of silicon rubber is provided to improve water tightness when contacting.
Further, the drainage guide member 9 as a whole is configured with a specific gravity (1.05 or the like) that is larger than 1 but close to 1. The “specific gravity close to 1 as a whole” here means that the weight of the drainage guide member 9 as a whole is the weight of the drainage guide member 9 even if the specific gravity is substantially smaller or larger than 1. This means that the specific gravity divided by the total volume is close to 1.
In addition, the cylindrical portion on the side surface of the drainage guide member 9 is constructed so that the drainage guide member 9 is lifted and lowered concentrically between the deodorizing cylinder 2 and the sealing trough 3 of the drain trap. A plurality of plate-like lifting guide portions 10 that are in line contact with the deodorizing cylinder 2 at the time of completion are provided to protrude inward.
The drainage elbow 13 is a member attached to a bathtub-side mounting portion of a waterproof pan P, which will be described later, and has a drainage elbow drainage port 13a that collects drainage on the bathtub-side waterproof pan P on which the bathtub B is placed. The drainage elbow drainage port 13a is configured to discharge the drainage to the branch pipe portion 20 of the drainage trap as a connection destination. Moreover, the drainage elbow drainage port 13a is configured such that drainage from a bathtub drainage port 15 to be described later is discharged via a drainage pipe.
Moreover, such a drain trap is applied to the waterproof pan P which is the following drainage device.
The waterproof pan P is a drainage device used in the bathroom,
It is composed of a part for placing the bathtub B and a washing part where the user washes the body and the like, and has a function of receiving drainage generated by using the bathroom or the bathtub B. Moreover, the bathtub side attachment part is provided in the side which mounts the bathtub B of the waterproof pan P, and the washing place side attachment part is each provided in the washing place side.
The bathtub B is a tank body having a bottomed box shape and opened upward, and is provided with a bathtub drainage port 15 at the lowest position on the bottom surface.
Further, a drain pipe is connected from the bathtub drain port 15 of the bathtub B to the drain elbow drain port 13 a of the drain elbow 13.
Further, an underfloor connection pipe U that connects the discharge port 4 to the underfloor pipe is connected to the discharge port 4 of the trap body 11. This underfloor connecting pipe U is an elbow pipe whose pipe body is bent 90 degrees, and the diameter of the vertical part of the pipe body is partially reduced to shut out the air from the drainage, and the pressure feeding pipe by the self siphon when draining It is comprised so that it may perform.

Each member of the drain trap shown in the paragraph 0016 is connected to the waterproof pan P and the bathtub B, which are drain devices, by the following method.
In the state where the drain trap is interposed between the peripheral edge of the washing pan side attachment portion of the waterproof pan P, the peripheral edge of the washing portion side attachment portion of the waterproof pan P is formed by screwing the female screw of the trap body 11 with the male screw of the flange member 12. The trap body 11 and the flange member 12 are fixedly attached to the waterproof pan P by being sandwiched between the lower surface of the flange portion of the flange member 12 and the periphery of the lower opening of the trap body 11.
Moreover, after connecting the drain elbow 13 to the branch pipe portion 20 of the drain trap, the drain elbow 13 is attached and fixed to the bathtub side mounting portion of the waterproof pan P.
Further, the drain pipe is connected from the bathtub drain port 15 of the bathtub B to the drain elbow drain port 13a of the drain elbow 13, and the discharge port 4 of the trap body 11 is connected to the under floor pipe via the under floor connecting pipe U.
Next, as shown in FIG. 5, the drainage guide member 9 is inserted from the drainage port 1 into the sealed water bottle portion 3 so that the bottom portion of the bottomed cylindrical shape faces downward. It arrange | positions in the sealed water bottle part 3 so that a cylindrical part may become a concentric circle.
Further, the deodorizing cylinder 2 is detachably and watertightly fitted to the drain port 1 of the flange member 12, and the construction of the drain trap on the waterproof pan P is completed. At this time, the side surface of the cylinder portion of the deodorizing cylinder 2 is arranged so as to be in line contact with the lifting guide portion 10 of the drainage guide member 9.

In the drain trap pipe configured as described above, when drainage is performed on the waterproof pan P on the washing place side, the drainage passes through the inside of the deodorizing cylinder 2 from the drain port 1 and the opening above the deodorizing cylinder 2, and is sealed. As shown in FIG. 2, the drainage guide member 9 disposed in the water tank part 3 is lowered to a position where the external drainage port closing valve 7 of the drainage guide member 9 comes into contact with the upper end of the sealing waterfowl part 3. It collects in the drainage guide member 9 above, overflows from the upper end of the drainage guide member 9, passes through the water passage 14, reaches the outlet 4, and is finally discharged from the outlet 4 to the sewage side through the underfloor piping. The
Further, at this time, the drainage is accumulated in the drainage guide member 9, so that the accumulated water functions as sealing water, and the drainage flow path from the drainage port 1 to the drainage port 4 of the drainage trap has a trap function.
At this time, as described above, the drain guide member 9 is lowered to a position where the external drain port closing valve 7 of the drain guide member 9 comes into contact with the upper end of the seal pot 3, so The opening is closed by a drain guide member 9 including a drain port 1 closing valve.
By this blockage, the drainage flowing from the drainage port 1 toward the discharge port 4 is smoothly discharged from the discharge port 4 without flowing back from the external drainage port 5 to the drainage elbow drainage port 13 a and the bathtub drainage port 15.

Further, in the drain trap pipe, when drainage is performed on the bathtub B or the bathtub-side waterproof pan P, the drainage is conducted from the bathtub drain port 15 or the drain elbow drain port 13a through the drain elbow 13 through the drain pipe. As shown in FIG. 3, the drainage guide member 9 passes through the branch pipe portion 20 to the external drainage port 5 and further accumulates between the sealage trough 3 and the drainage guide member 9 to form a seal water. The deodorizing cylinder closing valve 6 on the bottom surface of the drainage guide member 9 is raised until the lower end of the deodorizing cylinder 2 is closed, and further overflows from the upper end of the sealing basin 3 and passes through the water passage 14 to reach the discharge port 4. Is discharged from the discharge port 4 to the sewage side or the like through the underfloor pipe (the upper end of the sealing basin 3 and the external drain port closing valve 7 are separated due to the rise of the drain guide member 9, and the bathtub drain port 15 or Drainage flow from drain elbow drain 13a to discharge 4 There are open).
Further, at this time, since the drainage is accumulated inside the sealing water trough 3, the accumulated water functions as sealing water, and the drainage flow path from the bathtub drainage port 15 of the drainage trap or the drainage elbow drainage port 13 a to the discharge port 4 is A trap function will be provided.
At this time, as described above, the drainage guide member 9 rises to the position where the deodorization cylinder closing valve 6 of the drainage guide member 9 contacts the lower end of the deodorization cylinder 2, so that the opening below the deodorization cylinder 2 is blocked by the deodorization cylinder. It is closed by the valve 6.
By this blockage, the drainage flowing from the bathtub drainage port 15 or the drainage elbow drainage port 13a toward the discharge port 4 is smoothly discharged from the discharge port 4 without flowing back to the drain port 1.
As described above, since the deodorizing cylinder blocking valve 6 and the external drain opening blocking valve 7 are configured as an integral member called the drainage guide member 9 via the interlocking portion 8, the deodorizing cylinder blocking valve 6 and the external drain blocking the valve. It operates in conjunction with the valve 7 . Specifically, when the drainage guide member 9 is raised, the deodorizing cylinder blocking valve 6 contacts the lower end of the deodorizing cylinder 2 and closes the lower end of the deodorizing cylinder 2, and at the same time, the external drain opening blocking valve 7 is When the drainage guide member 9 descends after being separated and the drainage guide member 9 is lowered, the external drainage port closing valve 7 comes into contact with the upper end of the sealer pot 3 and closes the upper end of the sealer pot 3, and at the same time, deodorizing The cylinder blocking valve 6 is spaced apart from the lower end of the deodorizing cylinder 2 and opens the lower part of the deodorizing cylinder 2.

Further, in the drain trap pipe configured as described above, when drainage is simultaneously performed on the bathtub B or the bathtub-side waterproof pan P and the waterproof pan P on the washing place side, the drainage is discharged from the drain port 1 described above. There are two types of drainage flow: the drainage flow to the outlet 4 and the drainage flow from the bathtub drainage port 15 or the drainage elbow drainage port 13a to the discharge port 4. At this time, as shown in FIG. 4, the drainage guide member 9 may be closed at the lower end of the deodorizing cylinder 2 by the external drainage port closing valve 7 coming into contact with the upper end of the sealing bowl 3 and closing the upper end of the sealing bowl 3. The deodorizing cylinder closing valve 6 is brought into contact with the lower end of the deodorizing cylinder 2 and the two flow paths are opened. At this time, since drainage is performed from the drainage port 1 and the bathtub drainage port 15 or the drainage elbow drainage port 13a, the reverse flow from the drainage port 1 to the bathtub drainage port 15 or the drainage elbow drainage port 13a, the bathtub drainage port 15 or No back flow from the drain elbow drain 13a to the drain 1 occurs.
Then, when the drainage of any one of the drainage port 1 and the bathtub drainage port 15 or the drainage elbow drainage port 13a is completed, the drainage guide member 9 is moved up and down so as to close the drainage channel on the side where the drainage is completed. Specifically, when drainage on the bathtub B or the waterproof pan P on the bathtub side is finished and only drainage on the waterproof pan P on the washing place is completed, the drainage guide member 9 is lowered and is in the state described in paragraph 0018 Migrate to
Moreover, when the drainage on the waterproofing pan P on the washing area side is finished and only drainage on the bathtub B or the waterproofing pan P on the bathtub side is completed, the drainage guide member 9 rises and shifts to the state described in paragraph 0019. .

Further, the underfloor connection pipe U connected to the discharge port 4 of the drain trap is configured such that the diameter of the vertical portion of the pipe body is partially reduced. For this reason, the air in drainage is shut out at this reduced diameter portion, and the pipe is filled with only drainage. When air is mixed in the drainage in the form of bubbles, the negative pressure generated by the self-siphon acts to draw air more than the drainage. From upstream to downstream, the wastewater simply flows to the downstream side due to its own weight, but downstream from this full water part, the wastewater is drawn by the negative pressure of the self-siphon generated when the downstream wastewater flows, and in addition to the wastewater's own weight. As a result, drainage is discharged at a high speed by the negative pressure.
Furthermore, even during this pressure drainage, when drainage from the drainage port 1 is performed by the drainage guide member 9, the flow path from the bathtub drainage port 15 or the drainage elbow drainage port 13a to the discharge port 4 is
When drainage from the bathtub drainage port 15 or the drainage elbow drainage port 13a is being performed, the flow path from the drainage port 1 to the discharge port 4 is closed, so that negative pressure is drawn from the discharge port 4. Even if it occurs, air is not drawn from the drainage flow path on the blocked side, and the noise of the whistle like “hue” as in the conventional example, the bubbles of air in the drainage flow, or There is no noise that you can play. Similarly, even if a negative pressure is drawn from the discharge port 4, the blocked drainage channel, that is, the drainage channel on which no drainage is performed, is blocked. The sealed water is not drawn from the drainage flow path of the water, and the sealed water does not flow out to cause the breakage (the flow path on the side where the drainage is performed naturally has a drainage supply, Hardly occurs).

In each drainage process described in the above paragraphs 0018 to 0020, the drainage guide member 9 is moved up and down while the cylindrical portion of the drainage guide member 9 is maintained concentrically with respect to the deodorizing cylinder 2 and the sealing water trough 3. The deodorizing cylinder block valve 6 and the external drain port blocking valve 7 are displaced during elevation, and the block of the deodorizing cylinder 2 and the external drain port 5 becomes incomplete. We are trying to prevent problems. Since the contact between the deodorizing cylinder 2 and the elevating guide part 10 is a line contact and there is almost no friction between them, the elevating and lowering of the drainage guide member 9 is performed very smoothly.
Further, in the drainage guide member 9 of the first embodiment, the drainage guide member 9 has a specific gravity (1.05 or the like) that is larger than 1 but close to 1 as a whole. The member 9 does not move up without permission, and because the specific gravity is large, the drainage guide member 9 does not operate due to the flow of drainage, etc., and operates smoothly along the flow of drainage. In addition, it functions as a guide for guiding the wastewater as described in the paragraphs 0018 to 0020 to the discharge port 4. Thus, compared with the float wall of the invention described in Patent Document 1, the reliability of the drainage guide member 9 constituting the drainage guide mechanism of the present embodiment is much improved.

Next, a second embodiment of the present invention will be described with reference to the drawings.
The embodiment of the present invention shown in FIGS. 5 to 8 includes a trap body 11, a flange member 12, a deodorizing cylinder 2, a drain elbow 13, and a drain outlet provided with a drain guide member 9 forming a drain guide mechanism described below. The adapter 18 is composed of other members.
The trap body 11 is provided with an opening having a bottomed cylindrical shape and a female screw provided above the trap body 11, and the height position up to the upper end of the sealing wall 17, which will be described later, is stored in the sealing wall by storing the sealing water inside. The casing part 16 functioning as the part 3 and the discharge port 4 for discharging the waste water provided on the side surface of the casing part 16 are configured.
The discharge port 4 is an opening for discharging the waste water in the trap body 11 to the sewage side pipe, and is formed outward from the side surface of the outer wall of the trap body 11, and the inside communicates with the inside of the trap body 11. In addition, a sealing wall 17 is provided inside the discharge port 4 and in a portion continuous with the casing portion 16 so as to stand from the lower end of the discharge port 4 and secure a sealed water.
Here, in the trap main body 11, the drainage outlet 1 drainage passage from the deodorizing cylinder 2 to be described later to the outlet 4 through the upper edge of the sealing wall 17, the drainage elbow 13, the branch pipe part from the bathtub drainage outlet 15. Two types of drainage flow paths are formed, which are a bathtub drainage flow path that passes through the external drainage port 5 through 20 and reaches the discharge port 4 through the upper edge of the sealing wall 17.
The flange member 12 is a cylindrical member opened up and down. The flange member 12 is provided with a flange at the upper end, and provided with a male screw that engages with the female screw of the trap body 11 on the outer peripheral surface. A drain port 1 through which drainage on P flows is opened.
The drain port adapter 18 is a member that is watertightly connected to the drain port 1, and includes a disk part 19, a deodorizing cylinder 2, a branch pipe part 20, and a drain guide member 9 that will be described in detail below.
The disk portion 19 has a circular shape in plan view and has an opening on the upper surface, and is in watertight contact with the inner surface of the drain port 1 when construction is completed.
The deodorizing cylinder 2 is configured by hanging a semicircular cylinder from the periphery of the opening provided on the upper surface of the disk portion 19, and the lower end portion is arranged in the sealed water bottle portion 3 when the construction is completed.
The branch pipe part 20 is a cylindrical body that penetrates the disk part 19 at a position adjacent to the deodorizing cylinder 2, and is bent in the horizontal direction above the disk part 19 and connected to the drainage elbow 13 member at the completion of construction. Below 19, a semicircular cylinder is extended to the same height as the lower end of the deodorizing cylinder 2 to form the external drainage port 5, and the lower end portion is disposed in the sealed water bottle part 3 when construction is completed.
The drainage guide member 9 is bent in a U-shape, and is provided with a plate-shaped deodorizing cylinder blocking valve 6 on one piece and a plate-shaped external drain opening blocking valve 7 on the other piece, and further along the bend. A rotating shaft 8 a that functions as 8 is provided.
Further, in the drainage guide member 9, the upper surface of the deodorizing cylinder blocking valve 6 (surface that contacts the lower end of the deodorizing cylinder 2) and the upper surface of the external drain opening blocking valve 7 (surface that contacts the upper end of the sealing water bottle portion 3). An elastic surface made of silicon rubber is provided to improve water tightness when contacting.
The drainage guide member 9 has a pivot shaft 8a rotatably pivoted at an intermediate portion between the deodorizing cylinder 2 and the external drain port 5, and drainage is generated from the deodorizing cylinder 2, and the deodorizing cylinder 2 is closed from the lower end of the deodorizing cylinder 2. When 6 is separated and the lower end of the deodorizing cylinder 2 is opened, the drainage guide member 9 rotates and the external drainage port closing valve 7 comes into contact with the lower end of the external drainage port 5 to close the external drainage port 5. Further, when drainage is generated from the external drainage port 5 and the external drainage port closing valve 7 is separated from the lower end of the external drainage port 5 and the external drainage port 5 is opened, the drainage guide member 9 rotates to deodorize the cylinder blocking valve. 6 contacts the lower end of the deodorizing cylinder 2 and closes the lower end of the deodorizing cylinder 2. The drainage guide member 9 has a specific gravity (1.05 or the like) that is larger than 1 but close to 1 as a whole. In a state where normal drainage does not occur, the drainage guide member 9 is configured such that the external drainage port closing valve 7 is in contact with the external drainage port 5 and closed as shown in FIG.
The drainage elbow 13 is a member attached to a bathtub-side mounting portion of a waterproof pan P, which will be described later, and has a drainage elbow drainage port 13a that collects drainage on the bathtub-side waterproof pan P on which the bathtub B is placed. The drainage elbow drainage port 13a is configured to discharge the drainage to the branch pipe portion 20 of the drainage trap as a connection destination. Moreover, the drainage elbow drainage port 13a is configured such that drainage from a bathtub drainage port 15 to be described later is discharged via a drainage pipe.
Moreover, such a drain trap is applied to the waterproof pan P which is the following drainage device.
The waterproof pan P is a drainage device used in the bathroom,
It is composed of a part for placing the bathtub B and a washing part where the user washes the body and the like, and has a function of receiving drainage generated by using the bathroom or the bathtub B. Moreover, the bathtub side attachment part is provided in the side which mounts the bathtub B of the waterproof pan P, and the washing place side attachment part is each provided in the washing place side.
In addition, the washing field side attaching part protrudes cylindrically toward the downward direction from the washing field part upper surface, and the through-hole which an elbow member penetrates is provided in the side surface of the cylindrical part.
The bathtub B is a tank body having a bottomed box shape and opened upward, and is provided with a bathtub drainage port 15 at the lowest position on the bottom surface.
Further, a drain pipe is connected from the bathtub drain port 15 of the bathtub B to the drain elbow drain port 13 a of the drain elbow 13.
Further, an underfloor connection pipe U that connects the discharge port 4 to the underfloor pipe is connected to the discharge port 4 of the trap body 11. This underfloor connecting pipe U is an elbow pipe whose pipe body is bent 90 degrees, and the diameter of the vertical part of the pipe body is partially reduced to shut out the air from the drainage, and the pressure feeding pipe by the self siphon when draining It is comprised so that it may perform.

Each member of the drain trap shown in the paragraph 0023 is connected to the waterproof pan P and the bathtub B, which are drain devices, by the following method.
In the state where the drain trap is interposed between the peripheral edge of the washing pan side attachment portion of the waterproof pan P, the peripheral edge of the washing portion side attachment portion of the waterproof pan P is formed by screwing the female screw of the trap body 11 with the male screw of the flange member 12. The trap body 11 and the flange member 12 are fixedly attached to the waterproof pan P by being sandwiched between the lower surface of the flange portion of the flange member 12 and the periphery of the lower opening of the trap body 11.
In addition, the downstream end of the drainage elbow 13 is attached and fixed to the bathtub-side attachment portion of the waterproof pan P after passing through a through hole provided in the vicinity of the washing-place-side attachment portion.
Further, the drain pipe is connected from the bathtub drain port 15 of the bathtub B to the drain elbow drain port 13a of the drain elbow 13, and the discharge port 4 of the trap body 11 is connected to the under floor pipe via the under floor connecting pipe U.
Next, with the branch pipe portion 20 connected to the downstream end of the drainage elbow 13, the drainage adapter 18 is sealed to the drainage port 1, and the lower end of the deodorizing cylinder 2, the external drainage port 5, and the drainage guide member 9 are sealed. The construction of the drain trap in the waterproof pan P is completed by fitting and arranging the outer periphery of the disk portion 19 in a watertight manner so as to be in the water tank portion 3.

In the drain trap pipe configured as described above, when drainage is performed on the waterproof pan P on the washing place side, the drainage passes through the deodorization cylinder 2 from the drain port 1 and the opening above the deodorization cylinder 2, and the deodorization cylinder Drainage is discharged from the lower end of the cylinder 2 into the sealed water bottle part 3, and when the drainage is accumulated in the sealed water bottle part 3 and the water level rises to the upper edge of the sealed water wall 17, it overflows from the discharge port 4. Is discharged from the discharge port 4 to the sewage side through the underfloor piping.
In addition, at this time, the accumulated water functions as sealed water by collecting the drainage in the sealed water trough 3, and the drainage channel from the drainage port 1 to the drainage port 4 of the drainage trap has a trap function. Become.
At this time, as shown in FIG. 7, the drainage guide member 9 allows the drainage of the deodorizing cylinder blocking valve 6 to be separated from the lower end of the deodorizing cylinder 2, while the drainage blocking member 7 is connected to the external drainage port. 5, the external drain port 5 is closed. By this blockage, the drainage flowing from the drainage port 1 toward the discharge port 4 is smoothly discharged from the discharge port 4 without flowing back from the external drainage port 5 to the drainage elbow drainage port 13 a and the bathtub drainage port 15.

Further, in the drain trap pipe, when drainage is performed on the bathtub B or the bathtub-side waterproof pan P, the drainage is conducted from the bathtub drain port 15 or the drain elbow drain port 13a through the drain elbow 13 through the drain pipe. Passing through and reaching the external drainage port 5 from the branch pipe part 20, and rotating the drainage guide member 9, the external drainage port closing valve 7 is separated from the external drainage port 5 and opened as shown in FIG. Drainage is discharged into the sealing jar 3, drainage is accumulated in the sealing jar 3, overflows from the discharge port 4 when the water level rises to the upper edge of the sealing wall 17, and finally the discharge port 4 is discharged to the sewage side etc. through the underfloor piping.
Further, at this time, the drainage guide member 9 is configured such that the external drainage port closing valve 7 is separated from the external drainage port 5 and allows drainage to pass through, while the deodorizing cylinder blocking valve 6 is in contact with the lower end of the deodorizing cylinder 2 and deodorized. 2 The lower end is closed. By this blockage, the drainage flowing from the bathtub drainage port 15 or the drainage elbow drainage port 13a toward the discharge port 4 is smoothly discharged from the discharge port 4 without flowing back from the lower end of the deodorizing cylinder 2 to the drain port 1.

Further, in the drain trap pipe configured as described above, when drainage is simultaneously performed on the bathtub B or the bathtub-side waterproof pan P and the waterproof pan P on the washing place side, the drainage is discharged from the drain port 1 described above. There are two types of drainage flow: the drainage flow to the outlet 4 and the drainage flow from the bathtub drainage port 15 or the drainage elbow drainage port 13a to the discharge port 4. At this time, as shown in FIG. 9, the drainage guide member 9 is configured such that the external drainage port closing valve 7 contacts the external drainage port 5 and the external drainage port 5 is blocked. Will come into contact with each other and the lower end of the deodorizing cylinder 2 will not be closed, and the two flow paths will be opened. At this time, since drainage is performed from the drainage port 1 and the bathtub drainage port 15 or the drainage elbow drainage port 13a, the reverse flow from the drainage port 1 to the bathtub drainage port 15 or the drainage elbow drainage port 13a, the bathtub drainage port 15 or No back flow from the drain elbow drain 13a to the drain 1 occurs.
Then, when the drainage of any one of the drainage port 1 and the bathtub drainage port 15 or the drainage elbow drainage port 13a is completed, the drainage guide member 9 is moved up and down so as to close the drainage channel on the side where the drainage is completed. Specifically, when drainage on the bathtub B or the waterproof pan P on the bathtub side is finished and only drainage on the waterproof pan P on the washing place side is completed, the external drain port closing valve 7 contacts the external drain port 5. Then, the external drain port 5 is closed and the state described in paragraph 0025 is entered.
Further, when the drainage on the waterproof pan P on the washing area is finished and only the drainage on the bathtub B or the waterproof pan P on the bathtub side is completed, the deodorizing cylinder closing valve 6 comes into contact with the lower end of the deodorizing cylinder 2 and the deodorizing cylinder 2 The lower end is closed and the state described in paragraph 0026 is entered.

Further, the underfloor connection pipe U connected to the discharge port 4 of the drain trap is configured such that the diameter of the vertical portion of the pipe body is partially reduced. For this reason, the air in drainage is shut out at this reduced diameter portion, and the pipe is filled with only drainage. When air is mixed in the drainage in the form of bubbles, the negative pressure generated by the self-siphon acts to draw air more than the drainage. From upstream to downstream, the wastewater simply flows to the downstream side due to its own weight, but downstream from this full water part, the wastewater is drawn by the negative pressure of the self-siphon generated when the downstream wastewater flows, and in addition to the wastewater's own weight. As a result, drainage is discharged at a high speed by the negative pressure.
Furthermore, even during this pressure drainage, when drainage from the drainage port 1 is performed by the drainage guide member 9, the flow path from the bathtub drainage port 15 or the drainage elbow drainage port 13a to the discharge port 4 is
When drainage from the bathtub drainage port 15 or the drainage elbow drainage port 13a is being performed, the flow path from the drainage port 1 to the discharge port 4 is closed, so that negative pressure is drawn from the discharge port 4. Even if it occurs, air is not drawn from the drainage flow path on the blocked side, and the noise of the whistle like “hue” as in the conventional example, the bubbles of air in the drainage flow, or There is no noise that you can play.

In each drainage process described in the above paragraphs 0025 to 0027, the drainage guide member 9 is provided with a rotating shaft 8a that functions as the interlocking portion 8, and the deodorizing cylinder is blocked by the rotating operation on the rotating shaft 8a. The valve 6 and the external drain port closing valve 7 operate in conjunction with each other. Specifically, the deodorizing cylinder blocking valve 6 contacts the lower end of the deodorizing cylinder 2 and closes the lower end of the deodorizing cylinder 2 by the rotation of the rotating shaft 8 a, and at the same time, the external drain opening blocking valve 7 is separated from the external drain opening 5. The external drain port 5 is opened, and the external drain port closing valve 7 is in contact with the external drain port 5 to close the external drain port 5. At the same time, the deodorizing cylinder blocking valve 6 is separated from the lower end of the deodorizing cylinder 2 and deodorized. 2 Open the bottom.
Further, in the drainage guide member 9 of the second embodiment, the drainage guide member 9 has a specific gravity (1.05 or the like) that is larger than 1 but close to 1 as a whole. The member 9 does not operate arbitrarily, and since the specific gravity is large, the drain guide member 9 does not operate due to the flow of drainage, etc., and operates smoothly along the flow of drainage. , And serves as a guide for guiding the drainage to the outlet 4 as described in paragraph 0023 above. Thus, compared with the float wall of the invention described in Patent Document 1, the reliability of the drainage guide member 9 constituting the drainage guide mechanism of the present embodiment is much improved.

The embodiments of the present invention are as described above. However, the present invention is not limited to the above-described embodiments, and can be freely changed without departing from the scope of the present invention. For example, in the embodiment of the present invention, the pressure drainage is configured so as to partially reduce the diameter of the longitudinal portion of the underfloor connecting pipe U, and is achieved by the self-siphon. Without being limited to the embodiment, for example, a negative pressure may be generated by a mechanical mechanism to perform pumping drainage.
If necessary, the pumping / drainage mechanism may be omitted.

DESCRIPTION OF SYMBOLS 1 Drain port 2 Deodorant cylinder 3 Sealed water bottle part 4 Drain port 5 External drain port 6 Deodorant cylinder block valve 7 External drain port block valve 8 Interlocking part 8a Rotating shaft 9 Drain guide member 10 Lift guide part 11 Trap body 12 Flange member 13 Drainage elbow 13a Drainage elbow drainage port 14 Water passage 15 Bathtub drainage port 16 Casing part 17 Sealing wall 18 Drainage port adapter 19 Disc part 20 Branch pipe part B Bathtub P Waterproof pan U Underfloor connection pipe

Claims (6)

A drain outlet 1 into which drainage flows,
A deodorizing cylinder 2 extending downward from the drain port 1 and having an opening downward;
While containing the opening below the deodorizing cylinder 2 in the inside, the bottomed cylindrical sealing water bottle part 3 which accumulates drainage and forms sealing water,
A discharge port 4 for discharging the waste water overflowing the sealed water trough 3 to sewage, etc .;
An external drainage port 5 for allowing the drainage of other drainage equipment to flow into the sealed water trough 3;
In the drain trap consisting of
A deodorizing cylinder closing valve 6 for closing the drainage flow path from the deodorizing cylinder 2 to the discharge port 4;
An external drain port closing valve 7 for blocking the drain flow path from the external drain port 5 to the discharge port 4;
When the deodorizing cylinder blocking valve 6 functions, the external drain opening blocking valve 7 is opened, and when the external drain opening blocking valve 7 functions, the deodorizing cylinder blocking valve 6 and the external drainage are opened. A drainage trap provided with a drainage guide mechanism comprising an interlocking part 8 for interlocking with the mouth closing valve 7. In the drain trap, the drain guide mechanism is
A tubular interlocking portion 8;
A deodorizing cylinder closing valve 6 provided by closing the interlocking portion 8 on the lower inner surface of the interlocking portion 8;
An external drain closing valve 7 protruding in an outer peripheral direction from an upper peripheral edge on the upper outer surface of the interlocking unit 8;
Constituted by a drainage guide member 9 comprising:
The drainage guide member 9 is placed between the deodorizing cylinder 2 and the sealed water bottle part 3,
At the time of ascent, the deodorizing cylinder closing valve 6 comes into contact with the lower end of the deodorizing cylinder 2 to close the lower end of the deodorizing cylinder 2,
2. The drain trap according to claim 1, wherein the drain trap is arranged so that the external drain port closing valve abuts on the upper end of the sealing basin portion and closes the opening above the sealing basin portion when descending. In the above drain trap,
The drainage trap according to claim 2, wherein the drainage guide mechanism is provided with a lifting guide portion (10) for restricting the drainage guide mechanism to lift and lower at an appropriate position. In the above drain trap,
The end of the external drainage port 5 on the side of the sealed water bottle part 3 is arranged downward in the sealed water bottle part 3, and the lower end of the deodorizing cylinder 2 is arranged adjacent to the external drainage port 5 in plan view.
The drainage guide mechanism
It is bent in a U-shape, and is provided with a plate-shaped deodorizing cylinder blocking valve 6 on one piece and a plate-shaped external drain opening blocking valve 7 on the other piece,
By pivoting the bent part so that it can rotate freely,
When the deodorizing cylinder blocking valve 6 is opened to the maximum, the external drain opening blocking valve 7 is closed, and when the external drain opening blocking valve 7 is opened to the maximum, the deodorizing cylinder blocking valve 6 is closed. Characterized by
The drain trap according to claim 1. In the above drain trap,
The drainage trap according to any one of claims 1 to 4, wherein a specific gravity of the drainage guide mechanism is approximately 1. In the above drain trap,
The drainage trap according to any one of claims 1 to 5, further comprising a pressure-feeding pipe for drawing the drainage by negative pressure downstream of the discharge port 4.

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