JP2007303193A - Drain trap, and member for adjusting height of seal water in it - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To secure the sufficient height of seal water while preventing the upsizing of a drain trap. <P>SOLUTION: In the drain trap 1, a height adjusting member 60 is arranged to protrude toward a seal water chamber 11 in which a trap body 2 is formed. The member 60 has an adjusting section 62 which is mounted on the side part of the seal water chamber 11 in accordance with a communication port 15 of a drain branch pipe 14, and which surrounds the communication port 15 while holding an inflow space 80. The height H1 of the seal water with respect to the branch pipe 14 of the drain trap 1 is lowered up to a lower end 72A of an inclined part 72 of the adjusting section 62 by means of the member 60. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a sealing height adjusting member used for adjusting a sealing water height, which is used by being attached to a drainage trap provided in a bathroom washroom, a sink, a sink, etc., and a drainage trap.

A drainage trap is provided in a drainage pipe route in a bathroom washroom or the like in order to prevent odors and pests from entering the sewage side. Some drain traps have a sealed water chamber in which drainage is stored at a certain depth and an opening is formed at the upper end, and a drain port through which drainage overflowing from the opening of the sealed water chamber is discharged. An inner cylinder that opens to the washing area is inserted in the sealed water chamber, and drainage from the washing area flows into the sealed water chamber from the opening at the lower end of the inner cylinder and is discharged from the drain outlet. Further, a drain branch pipe that opens to the bathtub is connected to the side of the sealed chamber. The drainage from the bathtub flows into the sealed water chamber from the drainage branch pipe and is discharged from the drainage port. The bad odor from the sewage side does not enter the room because the path is blocked by the waste water (hereinafter referred to as sealed water) accumulated in the sealed water chamber (see, for example, Patent Document 1).
JP 2001-182118 A

  By the way, if the level of the sealed water accumulated in the sealed chamber falls below the connection height of the drainage branch pipe or the lower end of the inner cylinder, the drainage outlet and the drainage branch pipe, or the drainage outlet and the inner cylinder are in direct communication. , Will not stop the invasion of bad odor. Therefore, the length from the upper end opening of the sealed water chamber to the connection position of the drainage branch pipe (hereinafter referred to as the sealing height of the drainage branch pipe) and the length from the upper end opening of the sealed water chamber to the lower end of the inner cylinder It is required to ensure sufficient (hereinafter referred to as the drainage height of the inner cylinder).

Here, as disclosed in Patent Document 1, when the opening of the drainage branch pipe is reduced by the hanging piece, the sealing height of the drainage branch pipe is increased, but the flow resistance is increased. It is not preferable because the time required for discharge increases and becomes larger.
If the height of the drain trap as a whole is changed and the connection position of the drain branch pipe is set below the sealed water chamber, the height of the sealed water will increase, but the height of the entire drain trap will increase, so the bathroom etc. Placement in becomes difficult.
On the other hand, if the upper end opening of the sealed water chamber is set to a high position without changing the overall height of the drain trap, the height of the sealed water will increase, but a high-pressure washing pipe that cleans the drain outlet will be installed. The problem that it becomes difficult to insert arises.
The present invention has been made in view of such circumstances, and a main object thereof is to ensure a sufficient sealing water height while preventing an increase in the size of the drain trap.

The invention according to claim 1 of the present invention for solving the above-described problem has a low and low-cylindrical sealed water chamber capable of storing drainage and having an opening formed at the upper end, and the upper or lateral side of the sealed water chamber. A drainage trap configured to discharge the drainage overflowed from the sealed water chamber through a discharge port when drainage flows from the drainage chamber, and a drain branch pipe for allowing the drainage to flow into the sealed water chamber from a side is It has a communication port formed in the side of the water chamber, protrudes into the drainage chamber so as to cover the communication port from above and extends below the upper end of the communication port, and substantially maintains the flow path area at the communication port Thus, a drainage trap is provided that includes a sealing water height adjusting member protruding into the sealing chamber.
In this drainage trap, the sealing water height adjusting member reduces the substantial opening height of the drainage branch pipe without reducing the channel area. When the opening height is lowered, the sealing water height in the drainage branch pipe is increased and it is difficult to seal. Moreover, since the flow path area is secured, the drainage smoothly flows from the drainage branch pipe to the sealed chamber.

The invention according to claim 2 is the drainage trap according to claim 1, wherein the opening length in the width direction substantially orthogonal to the height direction of the sealing water height adjusting member is that of the communication port of the drainage branch pipe. It is characterized by being larger than the width.
This drain trap does not need to lower the position of the bottom even when the opening height is lowered by extending the opening in the width direction. Without changing the external shape of the drain trap, the sealing water height and the flow path area can be secured.

The invention according to claim 3 is the drain trap according to claim 1 or 2, wherein the sealing water height adjusting member has an opening extending in a circumferential direction of the sealing water chamber.
In this drainage trap, since the sealing water height adjusting member has an opening extending in the circumferential direction, interference with the inner cylinder through which drainage flows into the sealing chamber from above is prevented.

According to a fourth aspect of the present invention, there is provided a closed cylindrical sealing chamber capable of storing drainage and having an opening formed at an upper end thereof, and the sealing is performed when drainage flows into the sealing chamber from above or from the side. Mounted on a drain trap that drains the waste water overflowing from the water chamber, it is used to adjust the sealing water height of the communication port through which waste water flows into the sealed water chamber from the side of the sealed water chamber. , Projecting so as to cover the communication port from above, extending downward from the upper end of the communication port, and the opening length in the width direction substantially orthogonal to the height direction is larger than the width of the communication port of the drainage branch pipe A sealing water height adjusting member for a drain trap characterized by forming an opening.
This sealing water height adjusting member increases the sealing water height by lowering the substantial opening height of the drainage branch pipe while maintaining the opening area of the drainage branch pipe opening at the side of the sealed water chamber. The sealing water height adjusting member does not have to lower the position of the bottom of the drain trap even when the opening height is lowered because the opening extends in the width direction. Without changing the external shape of the drain trap, the sealing water height and the flow path area can be secured.

  ADVANTAGE OF THE INVENTION According to this invention, the sealing height of a drainage branch pipe can be enlarged, maintaining the opening area of the drainage branch pipe opened to the side part of a sealed water chamber. For this reason, breakage can be prevented without changing the drainage and the outer shape of the wrap. Since it is not necessary to make the sealing chamber high, the drainage port can be easily cleaned.

Embodiments of the present invention will be described in detail with reference to the drawings.
As shown in FIGS. 1 and 2, the drain trap 1 has a trap body 2 disposed under a washing place, and a flange member 3, an inner cylinder 4, and an eye plate 5 are sequentially inserted from above the trap body 2. It has a configuration.

  The trap body 2 has a bottomed cylindrical sealed water chamber 11, and a drainage branch pipe 14 is integrally extended from a side portion of the sealed water chamber 11. The drainage branch pipe 14 extends in a direction substantially orthogonal to the axis (height direction) of the sealed water chamber 11 and communicates with the sealed water chamber 11 through a communication port 15. The pipe W2 connected to the drainage branch pipe 14 is connected to a drain outlet of a bathtub (not shown) at a position higher than the opening 12 at the upper end of the sealed water chamber 11. Further, a drainage chamber 13 is formed integrally with the sealed water chamber 11 so as to surround the opening 12 at the upper end of the sealed water chamber 11.

  The drain chamber 13 has a substantially annular bottom so as to surround the outer peripheral surface of the upper end of the sealed chamber 11. A bottom portion 13 </ b> A located at a position corresponding to the upper side of the drainage branch pipe 14 in the circumferential direction is extended to a position close to the upper end of the sealed water chamber 11. On the other hand, the bottom portion 13B opposite to the extending position of the drainage branch pipe 14 in the circumferential direction is set lower than the bottom portion 13A. The bottom portion connecting the bottom portion 13A and the bottom portion 13B is inclined toward the bottom portion 13B while extending along the outer periphery of the sealed chamber 11. And the drain outlet 16 is opening in the side part of the drain chamber 13 according to the position of the bottom part 13B provided in the lowest position. The side part of the drainage chamber 13 has a cylindrical shape, and the upper end thereof extends upward from the opening 12 at the upper end of the sealed chamber 11. The ceiling surface 17 of the drain chamber 13 is provided with an opening 18 at the center thereof. A screw 18 is carved on the inner peripheral surface of the opening 18. The flange member 3 is screwed into the opening 18.

  The flange member 3 has a cylindrical shape formed so that the drain port 32 communicates with the inside of the drain chamber 13 at the center, and a flange 31 is extended toward the radially outer side at the upper end thereof. Between the flange 31 and the ceiling surface 17 of the drainage chamber 13, an opening provided in the washing place BR is sandwiched via the packing 21. A lower end portion of the drain port 32 protrudes annularly radially inward to form a receiving portion 33, and the inner cylinder 4 is supported by the receiving portion 33. A plurality of ribs 34 are provided in the vicinity of the upper end of the drain port 32 so as to protrude in the vertical direction at substantially equal intervals in the circumferential direction.

The inner cylinder 4 has a cylindrical cylinder body 41, and a flange portion 42 is annularly extended radially outward at the upper end of the cylinder body 41, and the flange portion 42 is a flange member via a packing 43. 3 receiving parts 33. The cylinder main body 41 has an outer diameter that can be inserted into the drain port 32, and the lower end of the inner cylinder 4 enters the sealed water chamber 11 while being supported by the flange member 3, and the bottom 11 A of the sealed water chamber 11 A predetermined gap is formed between the two.
The eye plate 5 is disposed so as to close the drain port 32, and a plurality of openings 51 through which drainage flows are formed. A plurality of recesses 52 are formed on the side of the eye plate 5. These recesses 52 are engaged with the ribs 34 of the flange member 3, and when mounted on the flange member 3, the upper surface of the eye plate 5 and the upper surface of the flange member 3 are substantially flush with each other.

Here, as shown in FIGS. 1 and 3, a height adjusting member 60 (sealed water height adjusting member) is attached to the communication port 15 of the drainage branch pipe 14 so as to protrude into the sealed water chamber 11. ing.
As shown in FIGS. 1 and 3 to 5, the height adjusting member 60 includes a main body 61 that curves along the inner wall of the sealed water chamber 11, and an adjusting section 62 that protrudes from the inner peripheral surface 61 </ b> A of the main body 61. And have. The main body 61 has a substantially portal shape so as to surround the upper edge and the side edge of the communication port 15. Are provided integrally. The protrusion 63 is used for positioning to the drainage branch pipe 14. The engaging claw 64 can be engaged with a catch 14 </ b> A formed in the drainage branch pipe 14.

The adjustment portion 62 has a top portion 71 that protrudes substantially horizontally from a position substantially corresponding to the upper edge portion of the communication port 15, and the top portion 71 extends along the inner peripheral surface of the main body portion 61. From the tip of the top portion 71, an inclined portion 72 is continued obliquely downward. The inclined portion 72 gradually increases the distance from the main body portion 61 toward the lower end 72A. The lower end 72A extends to a position lower than the center line C1 of the communication port 15. The end portions in the circumferential direction of the top portion 71 and the inclined portion 72 are wider than the width of the drainage branch pipe 14, and are connected to the main body portion 61 by the side wall portion 73 and closed. As a result, the height adjusting member 60 forms an opening 75 substantially along the circumferential direction of the sealed water chamber 11. The opening 75 is formed by the height adjusting member 60 and the communication port 15, and the opening area (flow channel area) is substantially equal to the opening area (flow channel area) of the communication port 15. The opening length L1 in the width direction of the opening 75 is longer than the width L2 of the communication port 15.
The height adjusting member 60 is integrally manufactured by injection molding of ABS resin or the like, and is firmly fixed to the trap body 2 by fitting with the engaging claws 64 and an adhesive.

  The height H1 of the drainage branch pipe 14 is lowered to the lower end 72 </ b> A of the inclined portion 72 by the height adjusting member 60. This sealed water height H1 is substantially equal to the sealed water height H2 of the inner cylinder 4. In addition, although two sealing water heights H1 and H2 are substantially equal in the figure, the sealing water height H2 may be reduced, or the sealing water height H2 may be increased.

Next, the operation of this embodiment will be described.
In a normal use state, the sealed water chamber 11 stores drainage (sealed water) up to the upper end. Drainage is also stored in the inner cylinder 4 communicating with the sealed water chamber 11 to the same height as the upper end. The drainage branch pipe 14 is filled with drainage.
Waste water from the washing place BR flows into the drain port 32 through the eye plate 5. Further, the water is led from the drain port 32 through the inner cylinder 4 to the sealed water chamber 11. Since the amount of water in the sealed water chamber 11 increases, part of the drainage overflows from the sealed water chamber 11 to the drainage chamber 13. The drainage flows along the slope of the drainage chamber 13 and is discharged from the drainage port 16 to the sewer pipe W1.
Drainage from the bathtub flows into the drainage branch pipe 14. This drainage enters the sealed water chamber 11 through the opening 75 through the inflow space 80 formed by the height adjusting member 60 from the communication port 15. Since the height adjusting member 60 has a sufficient flow path area secured by the opening 75 extending in the circumferential direction, the flow path resistance is almost the same as that without the height adjusting member 60. The amount of water in the sealed water chamber 11 is increased, and the waste water overflowing from the sealed water chamber 11 to the drain chamber 13 is discharged from the drain port 16 to the sewer pipe W1.

  Here, when the amount of water in the sealing chamber 11 is gradually reduced, the drainage branch pipe 14 does not break until it falls below the lower end 72A of the inclined portion 72 of the height adjusting member 60. That is, the substantial sealed water height H2 of the drainage branch pipe 14 is higher than the sealed water height (the height H3 shown in FIG. 1 for comparison) when the height adjusting member 60 is not provided as in the prior art. Therefore, even when the sealing water is reduced to a lower position than before, no breakage occurs.

  The height adjusting member 60 is disposed so as to cover the communication port 15, but the flow path area is sufficiently secured by the shape of the adjusting portion 62, and the flow rate from the drainage branch pipe 14 to the sealed chamber 11 is as follows. There is no significant decrease. The draining time when draining through the height adjusting member 60 is not significantly changed as compared with the case where the height adjusting member 60 is not provided.

  According to this embodiment, by attaching the height adjustment member 60, the sealing height H1 of the drainage branch pipe 14 is increased without changing the position and size of the drainage branch pipe 14 and the shape of the sealing chamber 11. be able to. As a result, the breakage is less likely to occur. Since the height adjusting member 60 has a protruding shape so as to ensure a flow path area, the time required for drainage does not increase significantly. In particular, since the inclined portion 72 is inclined from the position where the adjusting portion 62 protrudes from the top portion 71, the flow path area between the communicating port 15 can be ensured. Furthermore, the fact that the length in the circumferential direction of the adjusting portion 62 is larger than the width of the communication port 15 also contributes to securing the flow path area.

  Here, the height adjusting member 60 may be handled as a single component and retrofitted to an existing drain trap. It is possible to increase the sealing height by lowering the substantial opening height of the drainage branch pipe of the existing drainage trap while ensuring a sufficient flow path area. Since the height adjusting member 60 can be easily attached by the adhesive or the engaging claw 64, even a drain trap already installed in a bathroom or the like can be easily attached.

Note that the present invention can be widely applied without being limited to the above-described embodiments.
For example, the height adjusting member 60 may be attached to an existing drain trap with an adhesive or the like. The mounting structure of the height adjusting member 60 is not limited to the embodiment.
The height adjusting member 60 may have only the inclined portion 72. Further, the length in the circumferential direction may be approximately the same as the opening width of the communication port 15. The mounting structure of the height adjusting member 60 is not limited to the embodiment and can be variously modified.

It is sectional drawing which shows the structure of a drain trap. It is a disassembled perspective view which shows the structure of a drain trap. It is sectional drawing along the AA line of FIG. It is a perspective view of a height adjustment member. It is a B arrow view of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Drain trap 11 Sealing chamber 12 Opening 14 Drainage branch pipe 15 Communication port 16 Drainage port 60 Height adjustment member (sealed water height adjustment member)
75 Opening (Opening)
L1 opening length L2 width (width of communication port)

Claims (4)

A low-cylindrical sealed water chamber that can store drainage and has an opening at the upper end, and drainage that overflows from the sealed water chamber when drainage flows into the sealed chamber from above or from the side. A drain trap configured to discharge from a discharge port,
A drainage branch pipe that allows drainage to flow into the sealed water chamber from the side has a communication port formed in a side portion of the sealed water chamber, and projects into the drainage chamber so as to cover the communication port from above. A drainage trap comprising: a sealing water height adjusting member that extends downward from the upper end of the sealing water and protrudes into the sealing chamber so as to substantially maintain a flow path area at the communication port.   The drain trap according to claim 1, wherein an opening length in a width direction substantially orthogonal to a height direction of the sealed water height adjusting member is larger than a width of the communication port of the drain branch pipe.   The drainage trap according to claim 1 or 2, wherein the seal water height adjusting member has an opening extending in a circumferential direction of the seal chamber. A low-cylindrical sealed water chamber that can store drainage and has an opening at the upper end, and drainage that overflows from the sealed water chamber when drainage flows into the sealed chamber from above or from the side. It is attached to a drain trap that discharges from the discharge port, and is used to adjust the sealing height of the communication port that allows drainage to flow into the sealed chamber from the side of the sealed chamber, and covers the communication port from above. Projecting so as to extend downward from the upper end of the communication port and forming an opening in which the opening length in the width direction substantially perpendicular to the height direction is larger than the width of the communication port of the drainage branch pipe The sealing height adjustment member of the drain trap.

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