TW201923199A - Drainage outlet mesh member - Google Patents

Abstract

An object is to obtain a drainage outlet mesh member that can suppress overflowing of drainage from a drainage outlet member. A drainage outlet mesh member includes a mesh portion that is attached to an outlet portion of a drainage outlet member, and an area of the mesh portion is configured to be larger than an opening area of the outlet portion due to the mesh portion being bent as seen from one direction.

Description

   Drain screen assembly   

The present invention relates to a drain screen assembly installed on a drain assembly such as a sink.

The bottom of the sink of the kitchen is provided with a concave drain assembly for draining water flowing to the sink toward the drain pipe. As a drain port assembly, there is known a drain port assembly having an opening connected to a drain pipe on the side (see, for example, Japanese Patent Application Laid-Open No. 2015-101871).

The drain unit is a flat screen unit that is installed on the side of the drain unit to remove the foreign matter that cannot be removed by the collection unit, although the collection unit for garbage reception is generally installed on the upper opening. Situation.

However, there are cases where a siphon drain pipe is used as a drain pipe on the downstream side of the drain port assembly. The siphon drainage pipe will have a time difference until the siphon force is generated. In the initial stage where the siphon force has not yet been generated, the drainage amount per unit time will be less than that in the case where the siphon force has been generated.

In the case where a flat screen assembly is installed at the opening on the side of the drain port assembly, the screen assembly will become the flow resistance of the drainage. If a large amount of drainage flows to the sink at one time, the siphon drainage pipe will generate siphon force During this period, drainage may overflow from the drain assembly.

The present invention has been made in consideration of the above-mentioned facts, and an object thereof is to provide a drain screen assembly capable of suppressing drainage from overflowing from the drain assembly.

The drain screen assembly related to the first aspect has a screen portion, and the screen portion is installed at the drain outlet of the drain component. Viewed from one direction, the area is set to be larger than the drainage flow due to bending. The opening area of the exit must be large.

In this drainage screen assembly, the screen portion through which the drainage passes is curved from one direction, so that the area of the screen portion will be larger than the opening area of the drainage outflow port. Therefore, compared with a case where the screen portion is not bent, the drainage can be passed through quickly, and the drainage can be prevented from overflowing from the drainage port assembly.

The second aspect is the drain outlet screen assembly related to the first aspect, and the screen portion is curved in the horizontal direction from the vertical view in the installed state.

In this drain screen assembly, the screen portion is viewed from the vertical direction in the installed state. Since the screen portion is bent in the horizontal direction, the surface of the screen portion can be easily cleaned compared to when it is bent in the vertical direction. In addition, if the screen portion is bent in the vertical direction, the lower side becomes narrower, and for example, a part that cannot reach the bristles (cleaning hair bundles) of the handle-attached brush appears and it becomes difficult to clean.

The third aspect is the drain outlet screen assembly related to the first aspect, and the screen portion is curved in a convex shape toward the upstream side in the drainage direction.

In this drain screen assembly, the screen portion is curved in a convex shape toward the upstream side in the drainage direction. In other words, the screen portion is curved in a convex shape toward the inflow side of the drainage. Therefore, compared with a case where the screen portion is curved in a concave shape toward the upstream side in the drainage direction, it can be easily cleaned.

The fourth aspect is the drainage outlet screen assembly related to the first aspect, which is installed at the drainage outflow opening that opens in the horizontal direction; the screen part is formed in the horizontal direction; the upper side of the screen part A rib portion is provided, and the rib portion causes drainage flowing from above to flow in a direction different from the front surface of the screen portion.

The drain screen assembly is installed at a drainage outflow opening that opens in a horizontal direction of the drain assembly. For example, when the drain flows to the sink, the drain will flow through the bottom of the sink and the side of the drain assembly to the bottom of the drain assembly, and the drain reaching the bottom of the drain assembly will pass through the drain outlet to the drain assembly. The outside is drained.

The drain screen assembly is provided on the upper side of the screen part with ribs for allowing the drainage flowing down from above to flow in a direction different from the front of the screen part. Therefore, when a large amount of drainage flows to the water tank, the ribs will disperse the drainage in a direction different from the front of the screen portion, so that the drainage flowing down through the side of the drainage port assembly will not block the drainage outlet. Thereby, the drain at the bottom of the drain port assembly can smoothly flow into the drain outlet and be discharged to the outside of the drain port assembly.

Thereby, even if a large amount of drainage flows to the water tank at a time, such as when the accumulated water is discharged, it is possible to suppress the drainage from overflowing from the drainage port assembly.

The fifth aspect is the drainage outlet screen assembly related to the first aspect. The hole portion of the screen portion is a polygonal shape formed by a plurality of sides, and the angle formed by one side and the other side is set as an obtuse angle.

In this drain screen assembly, the holes in the screen are polygonal in shape, and the angle formed by one side and the other is set at an obtuse angle, in other words, an angle exceeding 90 degrees, so it is compared with the screen. When the corner of the hole portion of the mesh portion is an acute angle of 90 degrees or less, it is difficult for foreign matters in the drainage to get caught in the corner portion.

The sixth aspect is the drain outlet screen assembly related to the fifth aspect, and the corner formed by the one side and the other side is curved.

In this drain screen assembly, the corners formed by one side and the other side of the hole portion of the screen are curved. Therefore, compared with the case where the corners are not bent, foreign matters in the drainage are less likely to get caught in the corners.

The seventh aspect is that the drainage screen assembly associated with the first aspect has a cylinder portion mounted on the drainage outflow port, and a screen portion is provided at an end edge on the upstream side in the drainage direction of the cylinder portion. The screen portion covers the opening of the end edge.

This drainage screen assembly can be installed at the drainage outflow port by inserting the barrel into the drainage outflow port.

In addition, since the screen portion is provided at the upstream end edge of the tube in the drainage direction, and the opening of the edge is covered by the screen portion, that is, the screen portion is not provided inside the tube portion, it can be simplified. Clean the foreign matter attached to the surface of the screen.

As described above, the drainage screen assembly according to the present invention has the excellent effect of suppressing the overflow of drainage from the drainage assembly.

18‧‧‧Drain Outlet Assembly

35‧‧‧Inlet

40‧‧‧Exhaust

40A‧‧‧Drain Outlet

48‧‧‧ foreign body trap screen

50‧‧‧ tube

50D‧‧‧part (rib)

52‧‧‧Screen Division

54‧‧‧ Hole

FIG. 1 is a schematic structural diagram showing a siphon drainage system to which a drain screen assembly according to an embodiment of the present invention is applied.

Fig. 2 is a longitudinal sectional view showing a drain outlet assembly equipped with a drain outlet screen assembly.

Fig. 3 is a perspective view showing the front side of the drain screen assembly as viewed obliquely from above.

Figure 4 shows a front view of the drain screen assembly.

Figure 5 shows a rear view of the drain screen assembly.

Figure 6 shows the right side view of the drain screen assembly.

Figure 7 shows the left side view of the drain screen assembly.

FIG. 8 is a top view (top view) showing the drain screen assembly.

Fig. 9 is a bottom view (bottom view) showing the drain screen assembly.

FIG. 10 is a perspective view showing the back side of the drain screen assembly when viewed obliquely from above.

FIG. 11 is a horizontal sectional view showing the drain screen assembly along the axis (a sectional view taken along line 11-11 in FIG. 4).

FIG. 12 is a right side view showing a partial cross section of a drain screen assembly inserted into a discharge portion. FIG.

Fig. 13 is a longitudinal sectional view showing the flow of drainage in the vicinity of a drain screen assembly of a drain assembly.

FIG. 14 is a front view of a hole portion of a drain screen assembly according to another embodiment.

1 through FIG. 13, a drain outlet screen assembly 48 according to an embodiment of the present invention will be described. FIG. 1 is a schematic diagram showing the overall configuration of a siphon drainage system 10 using a drain screen assembly 48 according to an embodiment of the present invention.

(Composition of siphon drainage system)

The siphon drainage system 10 is a drainage system that uses a siphon force to efficiently discharge the drainage from a watering device. In this embodiment, an example in which a siphon drainage system is used in a community building composed of a plurality of floors will be described. In addition, the siphon drainage system can be used in community buildings as appropriate, but it can also be used in sky-high houses or factories other than community buildings.

As shown in FIG. 1, the siphon drainage system 10 according to the embodiment has a drainage riser 12 capable of allowing drainage to flow downward. The drainage riser 12 is extended in the up-down direction (longitudinal direction) of the community building and penetrates the floor 14 of each floor of the community building.

Watering appliances 16 are provided on each floor of the community building to drain water. The water applicator 16 is composed of, for example, a fluid table (a water tank). In addition, the water application device 16 is not limited to a fluid counter, and may be comprised of any one, such as a washstand, a washing machine, a bathroom, and a toilet.

The drainage port 17 formed at the bottom of the water application device 16 is equipped with a drainage port assembly 18, and a downstream side of the drainage port assembly 18 in the drainage direction is connected with a pipe 20 and an S-type trap 22 for preventing backflow of malodor and gas , Piping 24 and siphon drainage pipe 26.

The siphon drainage pipe 26 includes a horizontal extension pipe 28 which is disposed on the floor 14 without a slope and extends in the lateral direction, and a vertical pipe 30 which communicates with the lateral extension pipe 28 and extends downward along the drainage riser 12.

In addition, the laterally extending tube 28 may have a slight inclination or a reverse inclination, and may be configured to be inclined and disposed in the lateral direction. The vertical pipe 30 is connected to the bus joint 32 arranged in the drainage riser 12, and communicates with the drainage riser 12 through the bus joint 32.

The laterally extending pipe 28 causes the drainage from the pipe 24 to flow laterally, and the vertical pipe 30 generates the siphon force by causing the drainage from the laterally extending pipe 28 to flow downward. The drainage in the laterally extending pipe 28 is subjected to a siphoning force in the drainage direction due to the energy of the siphon head Hs generated in the standpipe 30.

In addition, if the laterally extending pipe 28 and the vertical pipe 30 are thinner, the drainage will become full of water and the siphon force will be easily generated, but on the other hand, the amount of drainage treatment will be reduced. Therefore, it is necessary to set the inner diameter of the pipe, for example, 20A, after considering the easiness of siphon force generation and the necessary drainage treatment amount.

(Composition of the drain port assembly)

As shown in FIG. 2, the drain port assembly 18 includes a cylindrical portion 34, a bottom portion 36 that closes the lower portion of the cylindrical portion 34, a flange 38 formed on the upper portion of the cylindrical portion 34, and a bottom side of the cylindrical portion 34. The tubular discharge portion 40 is formed by the portion. In addition, an opening portion on the upper side of the cylindrical portion 34 is an inflow port 35 through which the drainage of the water application device 16 flows. The cylindrical portion 34 of the drainage port assembly 18 of this embodiment is formed to be larger than the radial dimension by the height dimension, and formed to be deeper than a general drainage port assembly, and the volume will be more general. The drain assembly needs to be large. The diameter of the discharge portion 40 is smaller than that of the cylindrical portion 34. The lower end of the inner peripheral surface of the discharge portion 40 and the upper surface of the bottom portion 36 of the cylindrical portion 34 are preferably aligned to prevent the drainage of water from staying in the bottom portion 36 of the drainage port assembly 18.

The depth of the cylindrical portion 34 is preferably within a range of 175 to 225 mm.

The volume of the cylindrical portion 34 is preferably 2000 to 3000 cm ³ .

A washer 42 is placed between the flange 38 of the drain port assembly 18 and the bottom of the water supply device 16, and a male screw 44 formed by locking an annular nut 46 to a part of the outer periphery of the cylindrical portion 34, Then, the drain port assembly 18 is attached to the watering device 16.

(Construction of drain screen assembly)

The opening portion of the discharge portion 40 at the side of the cylindrical portion 34, that is, the drainage outflow port 40A, is inserted with the drainage screen assembly 48 shown in FIGS. 3 to 11. The drain screen assembly 48 has a cylindrical body 50 which is a cylindrical part arranged as an example of the cylindrical part inside the discharge part 40.

As shown in the plan view of FIG. 8, in the cylindrical body 50, the end edge 50A on the downstream side in the drainage direction (arrow B direction side) is formed at a right angle with respect to the axis CL, and the upstream side in the drainage direction (arrow F The direction edge 50B is viewed from one direction. For example, when viewed from the vertical direction in the installed state, the edge 50B is convex and curved toward the upstream side in the drainage direction. In addition, the end edge 50B is straight in a vertical direction (a direction orthogonal to the bending direction) (see FIGS. 3 and 6 and the like).

As shown in FIG. 3, the opening portion on the upstream side (arrow F direction side) in the drainage direction of the cylindrical body 50 is covered by a screen portion 52 formed in a convex shape and curved toward the upstream side in the drainage direction. In other words, the outer peripheral portion of the screen portion 52 formed in a curved shape is integrally joined to the end edge 50B of the cylindrical body 50 formed in a curved shape. The drain screen assembly 48 of this embodiment can be easily formed by synthetic resin.

Here, the area of the screen portion 52 in this embodiment means the area (part of the hole portion 54 in FIG. 4) when the portion (see FIG. 5) viewed from the inside of the cylindrical body 50 is flatly expanded. And the total area of the portion that does not pass through the drainage 52A).

The screen portion 52 of this embodiment is formed with a plurality of hole portions 54. As shown in the front view of FIG. 4, the hole portion 54 of the screen portion 52 is preferably a polygonal shape formed by a plurality of sides, and the angle θ formed by one side and the other side adjacent to each other is set to an obtuse angle. The hole portion 54 of this embodiment is formed in a hexagonal shape except for a portion (54A) disposed on the outer peripheral side. In this embodiment, the hole portions 54 are arranged in a hexagonal shape without a gap and have a honeycomb shape. With this, the part through which the drainage passes can be maximized.

As shown in FIG. 12, the cylindrical body 50 of the drain screen assembly 48 has a central portion in the axial direction as a boundary, and a part of the downstream side in the drainage direction is inserted into the drainage part 40, and the upstream side in the drainage direction is discharged from the drainage. The inner peripheral surface of the cylindrical portion 34 of the mouthpiece 18 faces the inside of the cylindrical portion 34 and protrudes in the horizontal direction.

In this cylindrical body 50, a portion protruding upstream of the inner side of the cylindrical portion 34 in the drainage direction, and a portion above the axis of the cylindrical body 50 (a portion indicated by diagonal lines) 50C is equivalent to a rib unit. Although the protruding length L of the portion 50C corresponding to the rib portion from the inner peripheral surface of the cylindrical portion 34 is not particularly specified, it is preferable to attach it so as to protrude from the inner peripheral surface of the cylindrical portion 34 by about 5 to 25 mm. . The portion 50C corresponding to the rib portion is more protruded to the downstream side than the screen portion 52 in the drainage direction. Accordingly, when the screen portion 52 is cleaned, even if the hand is extended from above, the portion 50C corresponding to the rib portion does not become an obstacle to cleaning.

(Effect)

Next, the function of the drain screen assembly 48 according to this embodiment will be described.

In the siphon drainage system 10 related to this embodiment, the drainage of the water supply device 16 flows into the siphon drainage pipe 26 through the drainage port assembly 18, the piping 20, the S-type trap 22, and the piping 24. Drainage will flow laterally in the laterally extending tube 28, and then flow down the vertical pipe 30, and the siphon force is generated by the potential energy of the siphon head Hs in the vertical pipe 30. With this siphon force, drainage is guided to promote drainage.

The drainage screen assembly 48 of this embodiment is curved because the screen portion 52 through which the drainage W passes is curved, and the area of the screen portion 52 is larger than the opening area of the drainage outflow port 40A of the drainage portion 40, so it is When the screen portion 52 is not bent (a flat case), the drainage W can be quickly passed through. Accordingly, it is possible to prevent the drainage from overflowing from the drainage port assembly 18.

In addition, the drain screen unit 48 of the present embodiment is provided to the inside of the cylindrical portion 34 of the drain port assembly 18 because the front side of the drainage outflow port 40A opened from the side covering the side of the cylindrical portion 34. The protruding portion 50C, even if a large amount of drainage W flows to the water application device 16, the drainage 60 flowing down can be dispersed by the rib 60 as shown by arrow A in FIG. 4 and FIG. The drainage W flowing down through the inner surface of the cylindrical portion 34 of the drainage port assembly 18 is prevented from blocking the drainage outflow port 40A of the drainage portion 40. In other words, at the front side of the drainage outflow port 40A of the discharge portion 40, the portion 50C corresponding to the rib portion of the present invention changes the flow direction of the discharged drainage W so that the flow passing through the inner side of the cylindrical portion 34 flows down. The drain water W does not interfere with the drain water W (direction of arrow B in FIG. 13) that flows into the drain outflow port 40A of the discharge unit 40. Accordingly, the drainage W at the bottom of the cylindrical portion 34 of the drainage port assembly 18 can smoothly flow into the drainage unit 40 and be discharged to the outside of the drainage port assembly 18.

Accordingly, even when a large amount of drainage flows to the water application device 16 at a time, such as when the accumulated water is discharged, the drainage W can be suppressed from overflowing from the drainage port assembly 18 into the water tank.

In addition, since the water level of the drain W flowing into the drain port assembly 18 can be suppressed from rising, as shown by arrow C in FIG. 13, the air in the pipes on the downstream side can be directed through the upper side of the drain screen assembly 48 as shown in FIG. 13. The inside of the drain port assembly 18 is smoothly discharged. Accordingly, the drainage W can be smoothly discharged to the outside of the drainage port assembly 18.

The screen portion 52 of the drain screen assembly 48 is projected convexly toward the inside of the drain port assembly 18 and is bent only in the horizontal direction, and is straight in the vertical direction (a direction orthogonal to the bending direction), further The ground system is integrally provided at the upstream edge 50B in the drainage direction of the cylindrical body 50. Therefore, when the drainage port assembly 18 is viewed from above, there will be no place for the screen portion 52 to become a shadow, that is, there is no place where foreign objects can be hidden when viewed from above. When removed, foreign matter adhering to the screen portion 52 can be easily cleaned from the upper side of the drain port assembly 18.

Since the hole portion 54 of the screen portion 52 is hexagonal except for a few portions, and the angle formed by one side and the other side is set as an obtuse angle (for example, 120 degrees), it is compared with the angle formed by one side and the other side. In the case of an acute angle, it is difficult for foreign matter in the drainage to get caught in the corner. In addition, by arranging the shape of the hole portion 54 in a hexagonal shape, the area between the hole portion 54 and the hole portion 54 can be changed. In other words, the area of the portion 52A (see FIG. 4) where the drainage fails to pass is This minimizes the passing resistance of the drainage W.

Since the drain screen assembly 48 in this embodiment can be attached to and detached from the discharge portion 40, the drain screen assembly 48 can also be removed and cleaned. In addition, the drain port screen assembly 48 may be fixed to the drain unit 40 by a claw portion or an adhesive (not shown) or the like without being removed from the drain unit 40, or may be integrally provided to the drain unit. 18.

In the installed state of the drain screen assembly 48 in this embodiment, although the screen part 52 is bent in the horizontal direction, the screen part 52 may also be installed in the discharge part 40 such that the screen part 52 is bent in the vertical direction.

As shown in FIG. 6, the drain screen assembly 48 of this embodiment type is a circular arc shape with a curvature radius R, but the screen part 52 may be a plurality of circular arcs with different curvature radii. The formed curved shape, or a shape that approximates a curved shape by connecting a plurality of straight lines.

In the drain screen assembly 48 of the present embodiment, although the side of the cylindrical body 50 is not provided with a hole, for example, the portion shown by the diagonally rising left side in FIG. 13 (in a relatively cylindrical shape) The central axis of the main body 50 is at the lower side, and a portion (50D) protruding from the cylindrical portion 34 of the drainage port assembly 18 is formed with the same hole portion as the hole portion 54 of the screen portion 52. Thereby, a part which allows drainage W to pass through can be added to the drainage screen assembly 48, and drainage can be performed more quickly.

Although the drain screen assembly 48 of the present embodiment is curved in a convex shape toward the upstream side in the drainage direction, the screen portion 52 may be curved in a concave shape toward the upstream in the drainage direction.

[Other implementation types]

Although an embodiment of the present invention has been described above, the present invention is not limited to the above-mentioned embodiment. In addition to the above-mentioned embodiment, of course, various changes and modifications can be made without departing from the scope of the present invention. Implementation.

As shown in FIG. 14, the corner portion formed by one side and the other side of the hole portion 54 may be curved (curvature radius r). As a result, compared with the case where the corner portion of the hole portion 54 is not bent, the foreign matter in the drainage is less likely to be caught in the corner portion of the hole portion 54.

Claims (7)

    The utility model relates to a drain screen assembly, which has a screen part. The screen part is installed at a drain outlet of the drain assembly. Viewed from one direction, the area is set to be larger than the opening area of the drain outlet due to bending. Come big.         For example, the drainage screen assembly of item 1 of the scope of the patent application, wherein the screen part is bent in the horizontal direction when viewed from the vertical direction in the installed state.         For example, the drainage screen assembly of item 1 or 2 of the patent application scope, wherein the screen part is curved in a convex shape toward the upstream side in the drainage direction.         For example, the drainage screen assembly of the scope of patent application No. 1 is installed on the drainage outflow opening that opens in the horizontal direction; the screen section is formed in the horizontal direction; the upper side of the screen section is provided with ribs The rib portion causes the drainage flowing down from above to flow in a direction different from the front of the screen portion.         For example, the drainage screen assembly of item 1 of the patent application scope, wherein the hole portion of the screen portion is a polygonal shape formed by a plurality of sides, and the angle formed by one side and the other side is set as an obtuse angle.         For example, the drain screen assembly of item 5 of the patent application, wherein the corner formed by the one side and the other side is curved.         For example, the drainage screen assembly of the scope of patent application No. 1 has a cylinder portion mounted on the drainage outflow port, and a screen portion is provided at the upstream edge of the drainage portion of the cylinder, and the screen The mesh portion covers the opening of the end edge.