TWI758548B - 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

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

Although the drain unit is equipped with a collection unit for receiving garbage so as to cover the upper opening, there is still a flat screen unit installed in the opening on the side of the drain unit to remove foreign matter that cannot be removed by the collection unit. situation.

However, there are cases where a siphon drain pipe is used as the drain pipe on the downstream side of the drain assembly. There is a time lag in the siphon drain pipe until the siphon force is generated, and in the initial stage when the siphon force has not been generated, the drainage volume per unit time is smaller than when the siphon force has been generated.

If a flat screen element is installed in the opening on the side of the drain element, the screen element will become the flow resistance of the drainage. If a large amount of drainage flows to the sink at one time, it will not work until the siphon drain pipe generates siphon force. During this period, there will be a situation where the drain overflows from the drain assembly.

The present invention takes the above-mentioned facts into consideration, and its object is to provide a drain screen assembly which can suppress the overflow of the drainage from the drain assembly.

The drain screen unit according to the first aspect has a screen portion, which is attached to the drain outlet of the drain unit, and is set so that the area is smaller than the drain flow when viewed from one direction. The opening area of the outlet should be larger.

In this drainage outlet screen assembly, the screen portion through which the drainage passes is curved when viewed from one direction, so that the area of the screen portion is larger than the opening area of the drainage outlet. Therefore, compared with the case where the screen portion is not bent, the drainage can be passed through quickly, and the overflow of the drainage from the drainage port assembly can be suppressed.

In the second aspect, in the drain screen assembly related to the first aspect, the screen portion is bent in the horizontal direction when viewed from the vertical direction in the installed state.

In this drain screen assembly, the screen portion is bent in the horizontal direction when viewed from the vertical direction in the installed state, so the surface of the screen portion can be easily cleaned compared to the case where the screen portion is bent in the vertical direction. In addition, when the screen portion is bent in the vertical direction, the lower side becomes narrow, for example, a portion that cannot be reached by the bristles (cleaning bristle bundles) of the brush with a handle, and cleaning becomes difficult.

In the third aspect, in the drain screen assembly related to the first aspect, 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 drain. Therefore, compared with the case where the screen portion is curved in a concave shape toward the upstream side in the drainage direction, cleaning can be facilitated.

The fourth aspect is in the drainage outlet screen assembly related to the first aspect, which is mounted on the drainage outlet opening in the horizontal direction; the screen portion is formed in the horizontal direction; the upper side of the screen portion The system is provided with a rib which causes the drainage flowing down from above to flow in a direction different from that of the front surface of the screen portion.

The drain screen assembly is installed on the drain outlet opening toward the horizontal direction of the drain assembly. For example, when the drainage flows to the sink, the drainage will flow through the bottom of the sink and the side of the drain component and then flow toward the bottom of the drain component, and the drain that reaches the bottom of the drain component will pass through the drain outlet and toward the drain component. the outside is discharged.

The drain screen assembly is provided with a rib on the upper side of the screen portion, which allows the drainage flowing down from above to flow in a different direction from the front surface of the screen portion. Thus, when a large amount of drainage flows to the sink, the rib will disperse the drainage in a direction different from the front of the screen portion, so that the drainage that flows down through the side of the drain assembly does not block the 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 one time, such as when the accumulated water is drained, the overflow of drainage from the drainage port assembly can be suppressed.

In the fifth aspect, in the drain 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 to be an obtuse angle.

In this drain screen assembly, since the hole of the screen is a polygonal shape formed by a plurality of sides, and the angle formed by one side and the other side is set to be an obtuse angle, in other words, the angle exceeds 90 degrees, so compared with the screen When the corners of the holes of the mesh are acute angles of 90 degrees or less, foreign matter in the drain is less likely to get caught in the corners.

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

In this drain screen assembly, since the corners formed by one side and the other side of the holes of the screen portion are curved, foreign objects in the drain are less likely to be stuck in the corners compared to the uncurved case.

The seventh aspect is that the drain port screen assembly related to the first aspect has a cylindrical portion attached to the drain outlet, and the screen portion is provided at the upstream end edge of the cylindrical portion in the drain direction, so that by The screen portion covers the opening of the end edge.

The drain screen assembly can be mounted on the drain outlet by inserting the barrel portion into the drain outlet.

In addition, the screen portion is provided at the upstream end edge of the cylindrical portion in the drainage direction, and the opening of the end edge is covered by the screen portion. Clean the foreign matter adhering to the surface of the screen.

As described above, according to the drain screen assembly of the present invention, it has an excellent effect of suppressing the overflow of drain water from the drain assembly.

18‧‧‧Drain assembly

35‧‧‧Inlet

40‧‧‧Discharge part

40A‧‧‧Drain outlet

48‧‧‧Foreign body trapping screen

50‧‧‧Tube

50D‧‧‧Part (rib)

52‧‧‧Screen Section

54‧‧‧Hole

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

Figure 2 is a longitudinal cross-sectional view showing the drain assembly with the drain screen assembly installed.

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

Figure 4 is a front view showing the drain screen assembly.

Figure 5 is a rear view showing the drain screen assembly.

Figure 6 is a right side view showing the drain screen assembly.

Figure 7 is a left side view showing the drain screen assembly.

Figure 8 shows a top view (top view) of the drain screen assembly.

Figure 9 shows a bottom view (bottom view) of the drain screen assembly.

Fig. 10 is a perspective view showing the rear side of the drain screen assembly as viewed obliquely from above.

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

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

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

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

With reference to FIGS. 1 to 13 , a description will be given of the drain screen assembly 48 related to an embodiment of the present invention. FIG. 1 is a schematic diagram showing the overall structure of a siphon drainage system 10 using a drain screen assembly 48 according to an embodiment of the present invention.

(Constitution of siphon drainage system)

The siphon drainage system 10 is a drainage system that utilizes siphonic force to efficiently discharge the drainage from the water applicator. 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, although the siphon drainage system can be properly used in community buildings, it can also be used in open-air residences or factories outside community buildings.

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

A water dispenser 16 capable of draining water is installed in each department on each floor of the community building. The water applicator 16 is constituted by, for example, a flow table (sink). In addition, the water applicator 16 is not limited to a faucet, and may be constituted by any of a washstand, a washing machine, a bathroom, a toilet, and the like.

The water outlet 17 formed at the bottom of the water applicator 16 is provided with a water outlet assembly 18. The downstream side of the water outlet assembly 18 is connected to a pipe 20 and an S-type trap 22 for preventing backflow of odors and gases. , piping 24 and siphon drain 26 .

The siphon drain pipe 26 has a laterally extending pipe 28 disposed on the floor 14 without inclination and extending in the lateral direction, and a vertical pipe 30 communicating with the laterally extending pipe 28 and extending downward along the drain riser 12 .

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

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

In addition, as the laterally extending pipe 28 and the vertical pipe 30 are thinner, the drainage will be in a state of full water and a siphon force is likely to be 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 laterally extending pipe 28 and the stand pipe 30, for example, 20A, after considering the easiness of generating the siphon force and the necessary amount of waste water treatment.

(Constitution of drain assembly)

As shown in FIG. 2 , the drain assembly 18 has 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 side on the bottom side of the cylindrical portion 34 . The tubular discharge part 40 formed by the part. In addition, the opening portion on the upper side of the cylindrical portion 34 is an inflow port 35 through which the drainage of the water applicator 16 flows. The cylindrical portion 34 of the water outlet assembly 18 of the present embodiment is formed to be larger in height than the radial dimension, and formed to be deeper than the general water outlet assembly, and the volume is larger than that of the general water outlet assembly. The drain assembly is larger. In addition, the diameter of the discharge part 40 is smaller than that of the cylindrical part 34 . It is preferable that 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 have the same height so that the drain water does not stay in the bottom portion 36 of the drain port assembly 18.

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

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

A gasket 42 is sandwiched between the flange 38 of the water outlet assembly 18 and the bottom of the water applicator 16 . to install the drain assembly 18 on the applicator 16 .

(Constitution of drain screen assembly)

The opening portion of the discharge portion 40 on the side surface of the cylindrical portion 34 , that is, the drain outlet 40A is inserted with the drain screen assembly 48 shown in FIGS. 3 to 11 . The drain screen assembly 48 has a cylindrical tubular body 50 which is arranged inside the discharge portion 40 and is an example of a tubular portion.

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

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

Here, in the present embodiment, the area of the screen portion 52 refers to the area (the portion 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 unfolded and the total area of the portion 52A through which the drainage does not pass).

The screen portion 52 of the present embodiment has a plurality of hole portions 54 formed thereon. As shown in the front view of FIG. 4 , the hole 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 be an obtuse angle. The hole portion 54 of the present embodiment is formed in a hexagonal shape except for the portion (54A) disposed on the outer peripheral side. In the present embodiment, the holes 54 are arranged in a hexagonal shape without a gap, and have a honeycomb shape. As a result, the portion through which the drainage passes can be maximized.

As shown in FIG. 12 , the cylindrical body 50 of the drain screen assembly 48 is bounded by the central portion in the axial direction, and a part of the downstream side in the drain direction is inserted into the drain portion 40, and the upstream side in the drain direction is inserted from the drain portion 40 on the upstream side in the drain direction. The inner peripheral surface of the cylindrical portion 34 of the mouth assembly 18 protrudes in the horizontal direction toward the inside of the cylindrical portion 34 .

In this cylindrical body 50, a portion protruding from the inner side of the cylindrical portion 34 on the upstream side in the drainage direction and above the axis of the cylindrical body 50 (a portion shown by diagonal lines) 50C corresponds to a rib department. 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, but it is preferable to protrude about 5 to 25 mm from the inner peripheral surface of the cylindrical portion 34 when attaching . The portion 50C corresponding to the rib portion protrudes further downstream in the drainage direction than the screen portion 52 . Thereby, when cleaning the screen portion 52, even if the hand is extended from above, the portion 50C corresponding to the rib does not become an obstacle to cleaning.

(Effect)

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

In the siphon drainage system 10 according to the present embodiment, the drainage system of the water applicator 16 flows into the siphon drainage pipe 26 through the water outlet assembly 18 , the piping 20 , the S-type trap 22 , and the piping 24 . The water flows laterally in the laterally extending pipe 28 , and then flows downward along the standpipe 30 , and the siphon force is generated by the potential energy of the siphon head Hs in the standpipe 30 . With this siphon force, the drainage is guided to facilitate the drainage of the drainage.

In the drain screen assembly 48 of the present embodiment, since 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 drain outlet 40A of the discharge portion 40, it is relatively When the screen portion 52 is not curved (flat condition), the drainage W can pass through quickly. Thereby, overflow of the drain from the drain assembly 18 can be suppressed.

In addition, the drain screen assembly 48 of the present embodiment is provided with the inner side of the cylindrical portion 34 of the drain assembly 18 as it covers the front side of the drain outlet 40A opened on the side surface of the cylindrical portion 34 from the upper side. Because of the protruding portion 50C, even if a large amount of drain water flows to the water applicator 16, the drain water W that flows down can be dispersed as shown by the 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 clogging the drainage outlet 40A of the drainage portion 40 . In other words, on the front side of the drain outlet 40A of the discharge portion 40 , the portion 50C corresponding to the rib of the present invention changes the flow direction of the drain water W flowing down so that the drain water W flows down through the inner side surface of the cylindrical portion 34 . The drain water W does not interfere with the drain water W which is going to flow into the drain outlet 40A of the discharge part 40 (the direction of the arrow B in FIG. 13 ). In this way, the drainage W at the bottom of the cylindrical portion 34 of the water outlet assembly 18 can smoothly flow into the discharge portion 40 and be discharged to the outside of the water outlet assembly 18 .

Thereby, even if a large amount of drainage flows to the water applicator 16 at one time, such as when the accumulated water is drained, the drainage W can be suppressed from overflowing into the water tank from the drainage port assembly 18 .

In addition, since the water level of the drain water W flowing into the inside of the drain port unit 18 can be suppressed from rising, as shown by the arrow C in FIG. The inside of the drain assembly 18 is drained smoothly. In this way, the drain water W can be smoothly drained to the outside of the drain port assembly 18 .

The screen portion 52 of the drain screen member 48 protrudes convexly toward the inside of the drain member 18 by bending only in the horizontal direction, and is straight in the vertical direction (direction perpendicular to the bending direction), and further The ground system is integrally provided on the upstream end edge 50B of the cylindrical body 50 in the drainage direction. Therefore, when the drain port assembly 18 is viewed from above, the screen portion 52 does not have a shadow, that is, there is no place where foreign objects can hide when viewed from above, so it is not necessary to place the drain screen assembly 48 By removing it, the foreign matter adhering to the screen part 52 can be easily cleaned from the upper side of the drain assembly 18 .

Since the hole portion 54 of the screen portion 52 is hexagonal except for a few parts, and the angle formed by one side and the other side is set to be an obtuse angle (for example, 120 degrees), the angle formed by one side and the other side is compared to the angle formed by the other side. In the case of an acute angle, the foreign matter in the drainage is not easy to get stuck in the corner. Furthermore, by arranging the hole portion 54 in a hexagonal shape and arranging it in a honeycomb shape, the area between the hole portion 54 and the hole portion 54, in other words, the area of the portion 52A (see FIG. 4 ) through which the drainage does not pass can be As a result, the passing resistance of the drainage W can be reduced.

Since the drain screen assembly 48 of the present embodiment can be attached to and detached from the discharge portion 40, the drain screen assembly 48 can also be removed for cleaning. In addition, the drain screen assembly 48 may not be detachable from the drain portion 40 and may be fixed to the drain portion 40 by means of claws or an adhesive (not shown) or the like, or may be integrally provided with the drain portion. 18.

In the installed state of the drain screen assembly 48 of the present embodiment, although the screen portion 52 is bent in the horizontal direction, the screen portion 52 may be bent in the vertical direction to be installed on the discharge portion 40 .

As shown in FIG. 6 , in the drain screen assembly 48 of this embodiment, although the screen portion 52 is curved into an arc shape with a curvature radius R, the screen portion 52 may also be formed by a plurality of arcs with different curvature radii. A curved shape formed, 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 no holes are formed on the side surface of the cylindrical body 50, as an example, the portion shown by the oblique line rising to the left in FIG. A portion 50D protruding from the cylindrical portion 34 of the drain assembly 18 is formed with the same hole portion as the hole portion 54 of the screen portion 52 at the lower side of the central axis of the main body 50 . Thereby, the portion through which the drain water W passes can be increased in the drain port screen assembly 48, so that the drain can be drained more quickly.

Although the screen portion 52 of 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 side in the drainage direction.

[Other implementations]

In the above, although one embodiment of the present invention has been described, the present invention is not limited to the above-described embodiment, and other than the above-described embodiment, various changes and modifications can of course be made within the scope without departing from the gist of the present invention. implement.

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). Therefore, compared with the case where the corners of the holes 54 are not bent, foreign objects in the drainage are less likely to be caught at the corners of the holes 54 .

48‧‧‧Foreign body trapping screen

50‧‧‧Tube

50A‧‧‧Edge on the downstream side of the drainage direction

50B‧‧‧Edge on the upstream side of the drainage direction

50C‧‧‧corresponds to the part of the rib

52‧‧‧Screen Section

54‧‧‧Hole

Claims (6)

A drain screen assembly is mounted on a drain outlet of a drain assembly opened in a horizontal direction, and has a screen portion, the screen portion is mounted on the drain outlet of the drain assembly, viewed from one direction In other words, it is set so that the area will be larger than the opening area of the drainage outlet due to the bending; the screen part is formed in the horizontal direction; the upper side of the screen part is provided with a rib, the rib will make The drainage flowing down from above flows in a direction different from the front surface of the screen portion. The drain screen assembly according to claim 1, wherein the screen portion is bent in the horizontal direction when viewed from the vertical direction in the installed state. The drain screen assembly according to claim 1 or 2, wherein the screen portion is curved in a convex shape toward the upstream side in the drainage direction. According to the drain screen assembly of claim 1, wherein the hole 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. The drain screen assembly of claim 4, wherein the corner formed by the one side and the other side is curved. The drain screen assembly according to claim 1 has a cylindrical portion mounted on the drain outlet, and a screen portion is provided on the upstream end edge of the cylindrical portion in the drain direction, and the screen The net part covers the opening of the end edge.

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