JP5901594B2 - Drain trap - Google Patents

Description

  The present invention relates to a drain trap that is installed in a drainage channel to secure sealed water.

  2. Description of the Related Art Conventionally, foreign matter inflow prevention members such as eye plates and baskets are installed at drain outlets around water such as kitchen sinks and washbasins in order to suppress the inflow of foreign matters into the drain pipe (Patent Document 1). reference). Solid solids or hair that remain to a certain extent remain on the foreign matter inflow prevention member, and the liquid flows into the drainage pipe, so that the drainage pipe is prevented from being clogged. Further, the user can remove the foreign matter remaining on the foreign matter inflow prevention member.

Incidentally, in recent years, a siphon drainage system has been proposed as a drainage system in place of the conventional gradient drainage system (see Patent Document 2). This siphon drainage system uses the siphon force to drain water, and is effective when it is difficult to secure an underfloor space because a conventional gradient is not required. It has merits such as having a self-cleaning action. The siphon drainage pipe used for this siphon drainage system has a small diameter compared with the drainage pipe of the conventional gradient drainage system. Therefore, it is necessary to more reliably suppress foreign matter inflow.
Therefore, one way to prevent the inflow of foreign matter in the middle of the drainage pipe is considered, but if the drainage flow stagnates under the floor or in the wall, which is downstream from the watering device, a large-scale construction is required. Therefore, it is necessary to prevent the inflow of foreign matter at a place where it can be easily cleaned without construction.
Moreover, although the foreign substance inflow prevention member of the shape like patent document 1 is widely known conventionally, since the flow direction of waste water is arrange | positioned in the position which is downward from upper direction, after inflow of waste water is complete | finished In addition, since the foreign matter stays and accumulates on the foreign matter inflow prevention member due to the dead weight of the foreign matter, the drain pipe may be blocked early.

JP 2001-95699 A JP 2006-214204 A

  The present invention has been made in consideration of the above facts, and can suppress the inflow of foreign matter into the drainage pipe at a place where it can be easily cleaned, and can prevent clogging of the foreign matter inflow prevention member. It aims to provide a simple drain trap.

A drain trap according to claim 1 of the present invention is arranged downstream of a watering device and is continuous from a sealed water flow path section in which sealed water is stored and a downstream end of the sealed water flow path section, and downstream of the sealed water. Foreign water inflow prevention member installation range between the high water level flow path part forming the drainage channel from the side full water surface to the downstream side and the lowest water level flow path part to the highest water level reach part of the high water level flow path part A rib that is disposed in the high water level flow path section and that has an end face facing the upstream side in a side view so as to cross the drainage channel, and a cylindrical section that is disposed along the inner periphery of the high water level flow path section And a foreign matter inflow prevention member in which a perpendicular to the end surface is inclined with respect to the cylinder axis of the cylinder portion .

According to the drain trap according to the first aspect, the foreign matter mixed in the waste water is prevented from flowing downstream by the foreign matter inflow prevention member.
In the present invention, since the end surface facing the upstream side of the foreign matter inflow prevention member is attached to face downward in a side view, the foreign matter that is prevented from inflowing falls toward the lowermost part of the sealed water flow path portion. It will be. Therefore, clogging of the foreign matter inflow prevention member due to the accumulation of foreign matters can be suppressed and drainage can be performed smoothly.
Moreover, since the foreign substance inflow prevention member is provided in the drain trap, the foreign substance inflow prevention member can be easily cleaned from the cleaning port normally provided in the drain trap.

In the drain trap according to claim 1 of the present invention, the foreign matter inflow prevention member is disposed in the high water level flow path portion.

According to the drain trap according to claim 1 , since the foreign matter inflow prevention member is arranged at a position higher than the water surface of the sealed water, a long distance from the lowermost part of the sealed water flow channel portion can be secured, and more It is possible to reliably prevent clogging of the foreign matter inflow prevention member.

In the drain trap according to claim 1 of the present invention, the foreign matter inflow preventing member includes a cylindrical portion disposed along the inner periphery of the high water level flow path portion, and a perpendicular to the end surface is a cylindrical axis of the cylindrical portion. It is inclined with respect to.

According to the drain trap according to claim 1 , by arranging the cylindrical portion of the foreign matter inflow preventing member along the inner periphery of the high water level flow path portion, it is possible to easily arrange the end face on the upstream side downward. it can.

The drain trap according to claim 2 of the present invention is configured such that a separate upstream port portion and downstream port portion are detachably connected in the foreign matter inflow prevention member installation range, and the foreign matter inflow prevention member is the upstream port. It arrange | positions in the connection part of a part and a downstream opening part, It is characterized by the above-mentioned.

According to the drain trap according to claim 2 , the foreign matter inflow preventing member is disposed at the connecting portion between the upstream port portion and the downstream port portion having a structure in which the drain trap can be divided. can do.

  As described above, according to the drain trap according to the present invention, the foreign matter inflow prevention member can be prevented from being clogged while suppressing the inflow of the foreign matter to the drain pipe, and the drainage can be performed smoothly.

It is the side view which fractured | ruptured and showed the drain trap of 1st Embodiment. (A) is a perspective view of the foreign material inflow prevention member of 1st Embodiment, (B) (C) is a front view of the modification of the foreign material inflow prevention member of 1st Embodiment. (A) of the drain trap of 2nd Embodiment is a partially broken side view shown broken, (B) is a partially broken side view of a connected state.

[First Embodiment]

  DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, a first embodiment for carrying out the invention will be described with reference to the drawings. Here, an example in which the drainage trap of the present invention is applied to a siphon drainage system will be described.

  As shown in FIG. 1, the drain trap 20 of the present embodiment is a so-called S-shaped trap disposed on the downstream side of the watering device 12, and includes a sealed water flow path portion 22 and a high water level flow path portion 30. I have. A drainage channel 16 is formed inside the sealed water flow channel portion 22 and the high water level flow channel portion 30.

  The sealed water flow path part 22 is substantially U-shaped and has an upstream part 24, a bottom part 26, and a downstream part 28. The upstream portion 24 is a flow passage portion that is disposed on the upstream side of the sealed water flow passage portion 22 and in which the drainage flows downward, and is connected to the downstream end of the appliance drain pipe 14 from the watering device 12. The bottom portion 26 is a U-shaped bottom portion where the direction of drainage changes from downward to upward, and is formed continuously from the upstream portion 24. The downstream portion 28 is a flow path portion that is formed continuously from the bottom portion 26 and through which drainage flows upward. Sealed water is stored in the sealed water channel portion 22 after drainage outflow. The downstream full water surface 22 </ b> P when the sealed water is full is the upper end of the downstream portion 28.

  A cleaning port 26 </ b> A is formed on the lower surface of the bottom portion 26. The cleaning port 26 </ b> A has a downwardly open cylindrical shape communicating with the drainage channel 16, and a cap 26 </ b> C is attached to the cleaning port 26 </ b> A. The cleaning port 26A can be opened and closed by attaching and detaching the cap 26C. The entire portion in the radial direction of the portion where the water level of the drainage flowing through the drainage channel 16 is the lowest in the bottom portion 26 is defined as the lowermost portion 26B.

  On the downstream side of the downstream portion 28, the high water level flow path portion 30 is continuously arranged. The high water level channel part 30 is formed on the downstream side continuously from the high level part 32 where the flowing direction of the waste water gradually changes from the upward direction to the horizontal direction, and the discharge part 34 where the drainage flows downward. Have. The entire portion in the radial direction of the portion where the water level of the drainage flowing through the drainage channel 16 at the high level portion 32 becomes the highest is defined as the maximum water level reaching portion 32P. A ventilation portion 36 is formed at a boundary portion between the high-order portion 32 and the discharge portion 34. The ventilation portion 36 has a cylindrical shape with an upward opening communicating with the drainage channel 16, and a screw portion 36 </ b> A is formed on the inner periphery of the cylinder. A ventilation valve 36B is screwed onto the ventilation portion 36 and attached to a screw portion 36A. The ventilation valve 36 </ b> B introduces outside air into the drainage channel 16 when the drainage channel 16 becomes negative pressure. The ventilation valve 36B is detachable.

An engagement portion 32 </ b> A is formed on the inner peripheral wall of the high-order portion 32. The engaging portion 32A is formed over the entire circumference in the highest water level reaching portion 32P. The engaging portion 32A is formed by an enlarged diameter hole extending in the horizontal direction. A foreign matter inflow preventing member 40 is attached to the engaging portion 32A. As shown in FIG. 2A, the foreign matter inflow preventing member 40 has a cylindrical cylindrical portion 42 and a rib 44. The tube portion 42 is formed in a cylindrical shape, and a cross-shaped rib 44 is formed inside the tube portion 42 as viewed from the tube axis direction. The rib 44 is inclined so that its perpendicular is inclined with respect to the cylinder axis when viewed from the side, and an end face 44F facing the upstream side faces downward. The cylindrical portion 42 is fitted into the engaging portion 32 </ b> A of the high-order portion 32.
Here, facing downward means that the perpendicular of the end face 44F is inclined downward with respect to the horizontal direction.

  A siphon drain pipe 50 is connected to the downstream end of the discharge part 34. The siphon drain pipe 50 has an appropriate inner diameter (15 mm to 30 mm) for generating a siphon action. Note that the discharge port 34 of the drain trap 20 has the same inner diameter as that of the siphon drain pipe 50 in consideration of easy connection and smooth drainage.

  The sealed water flow path part 22 and the high water level flow path part 30 can be integrally formed with resin. In addition, it is not necessarily formed integrally, and a plurality of flow paths may be connected. Further, it is not necessarily made of resin, and may be made of metal.

  Next, the operation of this embodiment will be described.

  The waste water that has flowed out of the watering device 12 flows into the drain trap 20 from the sealed water flow path portion 22, and includes the upstream portion 24, the bottom portion 26, the downstream portion 28, the high level portion 32 of the high water level flow path portion 30, and the discharge portion. 34 and then flows out into the siphon drain pipe 50. Foreign matter mixed in the drainage flowing through the drainage channel 16 of the drain trap 20 is prevented from moving downstream by the foreign matter inflow prevention member 40. At this time, since the rib 44 of the foreign matter inflow prevention member 40 is inclined so that the upstream surface 44F faces downward, the foreign matter that is prevented from flowing into the discharge portion 34 is upstream, that is, a sealed water flow path. It falls toward the lowermost part 26B of the part 22. Therefore, clogging of the foreign matter inflow prevention member 40 due to the accumulation of foreign matters is suppressed, and drainage can be performed smoothly.

  In this embodiment, the example in which the foreign matter inflow prevention member 40 is attached to the high level portion 32 of the high water level flow path portion 30 has been described. However, the foreign matter inflow prevention member 40 has an upstream surface facing downward. As long as it is arranged, it may be attached at any position between the lowest part 26B and the highest water level reaching part 32P (foreign matter inflow prevention member installation range E). As in this embodiment, the foreign matter inflow prevention member 40 is attached to the high portion 32 of the high water level flow path portion 30 to prevent the foreign matter inflow prevention member 40 from being clogged by foreign matters floating in the sealed water. Can do. Further, after the drainage is finished, the buoyancy to the foreign matter is lost, and it becomes easy to fall downward from the high-order part 32, so that the entanglement of the foreign matter to the foreign matter inflow prevention member can be suppressed. Furthermore, since a long distance from the lowermost part 26B to the foreign matter inflow prevention member 40 can be ensured, it is possible to prevent the foreign matter inflow prevention member 40 from being clogged by foreign matter staying in the lowermost part 26B.

  Moreover, in this embodiment, the foreign material inflow prevention member 40 has the cylindrical cylinder part 42, and the rib 44 inside the cylinder part 42 inclines with respect to the plane which makes a cylinder axis a perpendicular. Accordingly, by fitting the cylindrical portion 42 to the engaging portion 32A formed on the inner peripheral wall of the high-order portion 32, the upstream surface 44F of the rib 44 can be easily attached so as to face downward.

  In the present embodiment, the foreign matter inflow prevention member 40 is provided with the cylindrical portion 42 and the cross-shaped rib 44, but may be any shape that can prevent foreign matter inflow, and other shapes, For example, as shown in FIG. 2B, a plurality of ribs 44A parallel to each other are arranged inside the cylindrical portion 42, or as shown in FIG. A cylinder 44B may be used, and ribs 44C that connect the cylinder 44B and the cylinder portion 42 may be arranged, or a mesh-like one may be used. Further, the material may be made of resin or metal.

  In the present embodiment, the drain trap 20 is directly connected to the water purifier 12, but another device such as a disposer is disposed between the water trap 12 and the drain trap 20. Also good.

  In the present embodiment, the example in which the cleaning port 26A is provided in the lowermost part 26B has been described, but the cleaning port 26A is not necessarily required. By providing the cleaning port 26A as in the present embodiment, the foreign matter staying in the lowermost portion 26B can be easily removed.

  Moreover, although this embodiment demonstrated the example in which this invention was applied to the S-shaped trap as a drain trap, you may apply this invention to other drain traps, such as a P-shaped trap and a U-shaped trap.

  Further, in the present embodiment, the foreign matter inflow prevention member 40 is a separate body, but may be integrally formed with the high water level flow path portion 30 by integral molding. Further, other members such as the cap 26C, the sealed water flow path portion 22, and the high water level flow path portion 30 may be integrally formed of resin. Further, it is not necessarily made of resin, and may be made of metal.

  In the present embodiment, the ventilation valve 36B and the foreign matter inflow prevention member 40 are separated, but may be formed integrally.

  Moreover, although the example which applied the drain trap of this invention to the siphon drainage system was demonstrated in this embodiment, you may apply the drain trap of this invention to the conventional gradient drainage system. In particular, in the siphon drainage system, since the diameter of the siphon drain pipe used is smaller than the diameter of the drain pipe of the conventional gradient drainage system, it is highly necessary to use the drain trap of the present invention. In addition, when applying the drain trap of this invention to the conventional gradient drainage system, the vent valve 36B does not necessarily need to be attached to the ventilation part 36, and what is necessary is just to attach a cover member.

[Second Embodiment]

  Next, a second embodiment of the present invention will be described. In the present embodiment, the same parts as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

  In the present embodiment, the configuration of the downstream portion 28 of the sealed water flow path portion 22 and the attachment position of the foreign matter inflow prevention member are different from those in the first embodiment.

  As shown in FIG. 3A, the downstream portion 28 of the sealed water flow path portion 22 is divided into a separate upstream port portion 28A and downstream port portion 28B. As shown in FIG. 3B, the outer diameter of the upstream port portion 28A is slightly smaller than the inner diameter of the downstream port portion 28B, and a male screw 28N is formed on the outer periphery of the downstream port portion 28B. . A nut 50 is disposed on the outer periphery of the upstream port portion 28 </ b> A, and a seal ring 52 is disposed on the lower inner periphery of the nut 50.

  A foreign substance inflow prevention member 56 is fitted to the inner periphery of the tip of the upstream port portion 28A. A receiving portion 28U that protrudes radially inward is formed on the inner circumference on the downstream side of the upstream opening portion 28A, and the foreign matter inflow preventing member 56 is disposed so as to abut against the receiving portion 28U. The foreign matter inflow prevention member 56 has a cylindrical tube portion 42, and a cross-shaped rib 46 is formed inside the tube portion 42. An end face 46F on the upstream side of the rib 46 faces downward in the vertical direction.

  When connecting the upstream port portion 28A and the downstream port portion 28B, the tip of the upstream port portion 28A is inserted into the downstream port portion 28B, and the nut 50 is screwed into the male screw 28N of the downstream port portion 28B and tightened. As a result, the seal ring 52 is elastically deformed between the bottom of the nut 50 and the tip of the downstream port 28B, and the upstream port 28A and the downstream port 28B are connected.

  Also in this embodiment, the foreign matter mixed in the drainage flowing through the drainage channel 16 of the drainage trap 20 is prevented from moving downstream by the foreign matter inflow prevention member 56. And since the foreign material in which the inflow was prevented falls toward the lowest part 26B, the clogging of the foreign material inflow prevention member 56 due to the accumulation of the foreign material is suppressed, and the water can be drained smoothly.

  Further, in the present embodiment, the foreign matter inflow preventing member 56 is disposed at the connecting portion between the upstream port portion 28A and the downstream port portion 28B, so the foreign matter inflow preventing member 56 can be easily disposed.

  In the present embodiment, the configuration in which the downstream portion 28 of the sealed water flow path portion 22 is divided has been described. However, other positions where the foreign matter inflow prevention member can be disposed, for example, It is also possible to similarly divide between the water level flow path parts 30 and the high level part 32 of the high water level flow path part 30.

12 Watering device 14 Device drainage pipe 16 Drainage channel 20 Drainage trap 22 Sealed channel 22P Downstream full water surface 26B Bottom 28A Upstream port 28B Downstream port 30 High water level channel 32P Maximum water level reach 40 Prevention of foreign matter inflow Member 42 Tube portion 44 Rib (foreign matter inflow prevention member)
44F End face 56 Foreign matter inflow prevention member E Foreign matter inflow prevention member installation range

Claims (2)

A sealed water flow path section that is arranged downstream of the watering device and stores the sealed water;
A high water level flow path part which is continuous from the downstream end of the sealed water flow path part and forms a drainage channel from the downstream full water surface to the downstream side of the sealed water;
It is arranged in the high water level channel part of the foreign matter inflow prevention member installation range from the lowest part of the sealed water channel part to the highest water level reaching part of the high water level channel part , and in a side view so as to cross the drainage channel A rib having an end surface facing the upstream side facing downward, and a cylindrical portion disposed along an inner periphery of the high water level flow path portion, and a perpendicular to the end surface is inclined with respect to a cylindrical axis of the cylindrical portion A foreign matter inflow prevention member,
Drain trap equipped with. In the range where the foreign matter inflow prevention member is installed, the upstream port portion and the downstream port portion which are separate from each other are configured to be separable from each other, and the foreign matter inflow prevention member is disposed at a connection portion between the upstream port portion and the downstream port portion. The drainage trap according to claim 1 , wherein

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