Drain for drain outlet

Abstract

To facilitate attachment work for a drain outlet strainer in a drain for drain outlet.SOLUTION: A drain for drain outlet 1 comprises: a flange portion 2 having a through hole 23 formed in it; and a cylindrical portion 3 configured in a cylindrical shape and disposed within a drain outlet 30. One end of the cylindrical portion 3 is connected to the through hole 23 portion of the flange portion 2, thereby integrally forming the cylindrical portion 3 and the flange portion 2. The through hole 23 in the flange portion 2 is configured as an inlet 4 into which drainage flows. The other end of the cylindrical portion 3 is configured as an outlet 5 from which the inflowing drainage flows out. The flange portion 2 comprises an attachment portion 24 to which a drain outlet strainer 40 is attached.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to drain technology for drain outlets. [Background technology]

[0002] BACKGROUND ART Conventionally, various drain outlet drain technologies have been known for use in repairing existing drain outlet drains installed on the roofs of buildings such as buildings and apartment buildings, or at the drain outlets of balconies on each floor. Patent Document 1 describes a drain device that includes a strainer, a drain body that includes a flat plate portion formed with a circular opening connected to a drain pipe, a circular pipe that communicates with the circular opening, the circular opening to which the circular pipe is connected, and a beam portion that is arranged to span the circular opening, and a coil spring that connects the beam portion of the drain body to the top of the strainer inside the strainer (see Patent Document 1).In this drain device, the elastic force of the coil spring can be used to install the strainer on the drain body without using tools, etc., making it low-cost and easy to install, and also effectively preventing the strainer from falling off. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Publication No. 2022-124585 Summary of the Invention [Problem to be solved by the invention]

[0004] However, the drain device described in Patent Document 1 requires the work of connecting the beam portion of the drain body and the top of the strainer with a coil spring inside the strainer, which makes the work of attaching the strainer to the drain body complicated.

[0005] The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a drain for a drain outlet that allows easy installation of a drain outlet strainer. [Means for solving the problem]

[0006] The problem to be solved by the present invention is as described above, and the means for solving this problem will now be described.

[0007] In other words, the drain for a drain according to the present invention is a drain for a drain used to renovate an existing drain installed at a drain, and comprises a cylindrical tubular portion and a flange portion configured as a flat plate with a through hole formed therein, one end of the tubular portion is connected to the through hole portion of the flange portion so that the tubular portion and the flange portion are configured as a single unit, the through hole of the flange portion is configured as an inlet through which wastewater flows in, and the other end of the tubular portion is configured as an outlet through which the inflowing wastewater flows out, a drain strainer is attached, and a support portion is provided to support the attached drain strainer so as not to fall off. [Effects of the Invention]

[0008] The present invention has the following effects. That is, according to the present invention, the drain strainer can be easily attached. [Brief explanation of the drawings]

[0009] [Figure 1] 1 is a perspective view showing a drain for a drain outlet and a strainer for a drain outlet according to an embodiment of the present invention. FIG. [Figure 2] FIG. [Figure 3] This is a side view showing the drain and strainer attached to the existing drain of the drain outlet. [Figure 4] FIG. [Figure 5] FIG. 10 is a rear view showing the drain for the drain outlet. [Figure 6] FIG. [Figure 7] FIG. [Figure 8] FIG. [Figure 9] FIG. [Figure 10] FIG. [Figure 11] FIG. 10 is a front view showing a drain strainer attached to the drain drain. [Figure 12] FIG. 10 is a rear view showing the drain strainer attached to the drain drain. [Figure 13] FIG. 10 is a plan view showing a drain strainer attached to the drain drain. [Figure 14] FIG. 10 is a bottom view showing the drain strainer attached to the drain drain. [Figure 15] FIG. 10 is a left side view showing the drain strainer attached to the drain drain. [Figure 16] FIG. 10 is a right side view showing the drain strainer attached to the drain drain. DETAILED DESCRIPTION OF THE INVENTION

[0010] Next, a drain 1 for a drain outlet according to an embodiment of the invention will be described with reference to FIGS.

[0011] As shown in FIGS. 1 to 3 , the drain outlet drain 1 is used to renovate an existing drain outlet drain 31 installed on the roof of a building, such as an office building or an apartment building, or on a drain outlet 30 on a balcony on each floor. The drain outlet 30 is a vertical drain outlet 30 formed on a side surface above the floor surface and opens to the side. In other words, the drain outlet drain 1 is used to renovate an existing drain outlet drain 31 installed with a vertical drain outlet 30. A pipe member 32 made of, for example, polyvinyl chloride is provided in the existing drain outlet drain 31. Note that the drain outlet drain 1 is not limited to being used to renovate an existing drain outlet drain 31 installed with a vertical drain outlet 30, but may also be used to renovate an existing drain outlet drain installed with a horizontal drain outlet.

[0012] 1, 2, 4 to 10, the drain for a water outlet 1 is made of an elastically deformable material (e.g., vinyl chloride material) that is softer than lead. The drain for a water outlet 1 includes a flange portion 2, a cylindrical portion 3, an inlet port 4, and an outlet port 5.

[0013] The flange 2 of the drain for a drain outlet 1 is disposed outside the drain outlet 30. It is configured as a flat plate-like member bent in a generally L-shape when viewed from the side. The flange 2 includes a horizontal portion 21 and a vertical portion 22 extending upward from the rear end of the horizontal portion 21. The flange 2 is configured by forming a through-hole 23 in the vertical portion 22. The boundary between the horizontal portion 21 and the vertical portion 22 is formed in a curved shape. The through-hole 23 is disposed in the left-right center of the vertical portion 22 near the bottom portion 21.

[0014] The tubular portion 3 of the drain for drain 1 is placed inside the drain 30. The tubular portion 3 is configured in a cylindrical shape. The tubular portion 3 is configured to extend rearward from the flange portion 2 (opposite the side where the horizontal portion 21 of the flange portion 2 is placed). One end (front end) of the tubular portion 3 is connected to the through-hole 23 portion of the flange portion 2 (the edge portion that forms the through-hole), and the tubular portion 3 and the flange portion 2 are configured integrally. The boundary portion between the tubular portion 3 and the flange portion 2 is formed into an inclined or curved surface.

[0015] The through hole 23 of the flange portion 2 of the drain 1 for wastewater outlet is configured as an inlet 4 through which wastewater flows in, and the other end (rear end) of the tubular portion 3 is configured as an outlet 5 through which the inflowing wastewater flows out. A pipe member 6 is connected to the outlet 5. The pipe member 6 is formed integrally with the tubular portion 3 by thermal welding. The pipe member 6 is configured to extend rearward from the other end of the tubular portion 3. The pipe member 6 is made of an elastically deformable material (for example, vinyl chloride material) that is softer than lead, and has a bellows-shaped peripheral surface.

[0016] In the drain outlet drain 1 configured in this manner, the pipe member 6 and the cylindrical portion 3 are inserted into the drain outlet 30 from the front, and the pipe member 6 is inserted into the pipe member 32. Then, the drain outlet drain 1 is placed in the drain outlet 30 so that the underside of the horizontal portion 21 of the flange portion 2 comes into contact with the drain outlet drain 31 and the floor surface, and the rear surface of the vertical portion 22 of the flange portion 2 comes into contact with the drain outlet drain 31 and the side surfaces around the drain outlet 30 (see Figure 3).

[0017] 3, the drain outlet drain 1 is used with a drain outlet strainer 40 attached. The drain outlet strainer 40 is configured to block the drain hole 30 while allowing water to pass through when attached to the drain outlet drain 1. The drain outlet strainer 40 is made of a metal material, and includes a pair of main bodies 41 and 42, a rotating shaft 43, a plurality of water passage holes 44, a locking hole 45, and an insertion hole 46, as shown in FIGS. 1 and 11 to 16.

[0018] The pair of main bodies 41 and 42 of the drain strainer 40 are each formed in a flat, approximately semicircular shape. The main bodies 41 and 42 are connected to each other via a rotation shaft 43 and are configured to be relatively rotatable around the rotation shaft 43. For convenience, the upper of the pair of main bodies 41 and 42 will be referred to as main body 41, and the lower one will be referred to as main body 42. They are configured symmetrically above and below the rotation shaft 43. For this reason, the drain strainer 40 may be used with the top and bottom facing inverted.

[0019] The water passage holes 44 of the drain strainer 40 allow water to pass through the through-hole 23 side of the flange 2 of the drain 1 for the drain outlet. The water passage holes 44 are formed in each of the pair of main bodies 41 and 42. The water passage holes 44 are linear through-holes whose longitudinal direction is perpendicular to the axial direction of the rotation shaft 43. The multiple water passage holes 44 are arranged side by side in the left-right direction (the axial direction of the rotation shaft 43). The drain strainer 40 prevents foreign matter such as trash from flowing into the through-hole 23 side of the flange 2 of the drain 1 for the drain outlet between the multiple water passage holes 44.

[0020] The insertion hole 46 of the drain strainer 40 is formed in the horizontally central water passage hole 44 of the multiple water passage holes 44. The horizontally central water passage hole 44 of the multiple water passage holes 44 is configured as a locking hole 45. The horizontal width of the locking hole 45 is configured to be wider than that of the water passage hole 44. The insertion hole 46 is a circular through-hole, and is configured to be connected to the end of the locking hole 45 in the direction of the rotation shaft 43 and to be continuous with the locking hole 45. The insertion hole 46 is connected to the lower end of the locking hole 45 in the main body 41, and is connected to the rear end of the locking hole 45 in the main body 42. The diameter of the insertion hole 46 is configured to be larger than the horizontal width of the locking hole 45, and the insertion hole 46 is configured to allow the insertion of the mounting portion 24 of the flange 2 of the drain for a drain 1, which will be described later.

[0021] As shown in Figures 1, 4, and 7 to 10, the flange 2 of the drain 1 for a drain outlet has an attachment portion 24. The attachment portion 24 is configured as a portion of the flange 2 to which the drain strainer 40 for a drain outlet is attached. The attachment portion 24 holds the drain strainer 40 in an attached state by engaging with the engagement hole 45 of the drain strainer 40. The attachment portion 24 is disposed on the front surface of the vertical portion 22 of the flange 2. The attachment portion 24 is configured to protrude forward (toward the side where the horizontal portion 21 is disposed from the vertical portion 22 of the flange 2) from the front surface of the vertical portion 22 of the flange 2. The attachment portion 24 is configured in a substantially cylindrical shape. The attachment portion 24 is disposed near the through-hole 23 of the flange 2. The attachment portion 24 is disposed above the through-hole 23 of the flange 2.

[0022] The diameter of at least the front end (protruding end) of the mounting portion 24 is larger than the left-to-right width of the locking hole 45 of the drain strainer 40 and smaller than the diameter of the insertion hole 46 of the drain strainer 40. The mounting portion 24 is configured so that the left and right sides of the circumferential surface of the mounting portion 24 (the circumferential surface of the mounting portion 24 at a portion midway in the protruding direction) are each cut out. The left-to-right width of the cut-out portion of the mounting portion 24 is smaller than the diameter of the front end of the mounting portion 24 and is larger than or equal to the left-to-right width of the locking hole 45 of the drain strainer 40.

[0023] In the drain outlet drain 1 and drain outlet strainer 40 configured as described above, the drain outlet strainer 40 is attached to the attachment portion 24 of the drain outlet drain 1 (see FIG. 3). To attach the drain outlet strainer 40 to the attachment portion 24 of the drain outlet drain 1, first, the drain outlet strainer 40 is moved from front to rear and inserted into the insertion hole 46 of the main body 41 of the drain outlet strainer 40 and into the attachment portion 24 of the drain outlet drain 1. At this time, the drain outlet strainer 40 is moved rearward until the notched portion of the attachment portion 24 of the drain outlet drain 1 and the locking hole 45 of the drain outlet strainer 40 are aligned. Next, the drain outlet strainer 40 is moved downward (along the longitudinal direction of the locking hole 45). At this time, the drain strainer 40 is moved downward until the mounting portion 24 of the drain outlet drain 1 is positioned at the upper end of the engagement hole 45 of the drain strainer 40, and the main body 41 of the drain strainer 40 is positioned in front of the through-hole 23 of the flange portion 2 of the drain drain 1, and the main body 42 of the drain strainer 40 is positioned above the horizontal portion 21 of the flange portion 2 of the drain drain 1. Then, the opening and closing angle of the main body 41 and the main body 42 is adjusted so that they match the shapes of the horizontal portion 21 and the vertical portion 22 of the flange portion 2 of the drain drain 1. In this manner, the drain strainer 40 is attached to the mounting portion 24 of the drain drain 1.

[0024] As described above, the flange 2 of the drain for a drain outlet 1 is provided with the mounting portion 24 to which the strainer for a drain outlet 40 is attached, so that the strainer for a drain outlet 40 can be attached to the drain for a drain outlet 1 without the need for connection work using, for example, a coil spring or the like. Therefore, the strainer for a drain outlet 40 can be easily attached to the drain for a drain outlet 1.

[0025] As described above, the mounting portion 24 of the flange 2 of the drain 1 for the drain outlet is disposed on the front surface of the flange 2 (on the front surface of the vertical portion 22 of the flange 2). This makes it easier to attach the drain strainer 40 to the drain drain 1 than when the means for attaching the drain strainer 40 to the drain drain 1 is disposed, for example, at the boundary between the flange and the cylindrical portion or inside the cylindrical portion. This also makes it possible to prevent foreign matter such as dirt from getting caught on the means for attaching the drain strainer 40 inside the drain strainer 40 or the cylindrical portion 3, which would otherwise cause a decrease in drainage capacity, as occurs when the means for attaching the drain strainer 40 to the drain drain 1 (for example, a spring or a leaf spring) is disposed inside the strainer or the cylindrical portion.

[0026] As described above, the tubular portion 3 of the drain for drain 1 is configured to extend rearward from the rear surface of the vertical portion 22 of the flange portion 2, and the mounting portion 24 protrudes forward from the front surface of the vertical portion 22 of the flange portion 2. The drain for drain 1 is placed at the drain outlet 30 with the underside of the horizontal portion 21 of the flange portion 2 in contact with the floor surface and the rear surface of the vertical portion 22 of the flange portion 2 in contact with the side surface around the drain outlet 30. Therefore, the drain for drain strainer 40 can be attached more easily than when the means for attaching the drain for drain 1 is placed, for example, at the boundary between the flange portion and the tubular portion or inside the tubular portion. This also prevents foreign matter such as dirt from getting caught on the means for attaching the drain strainer 40 to the drain drain 1 (for example, a spring or leaf spring) inside the strainer or the tubular portion 3, which would otherwise cause a decrease in drainage capacity.

[0027] As described above, the attachment portion 24 of the drain outlet drain 1 engages with the engagement hole 45 of the drain outlet strainer 40, thereby maintaining the attached state of the drain outlet strainer 40. Therefore, the drain outlet strainer 40 can be attached to the drain outlet drain 1 without the need for connection work using, for example, a coil spring or the like, facilitating the work of attaching the drain outlet strainer 40. Furthermore, this makes it possible to prevent the drain outlet strainer 40 from falling off the drain outlet drain 1, compared to, for example, a case in which the attached state of the drain outlet strainer is maintained by pressing the inner surface of the cylindrical part of the drain outlet drain with a leaf spring or the like provided on the drain outlet strainer. In addition, instead of the mounting portion 24 of the drain 1 for the drain outlet holding the strainer 40 in an attached state by engaging with the engaging hole 45 of the strainer 40 for the drain outlet, the mounting portion 24 of the drain 1 for the drain outlet can also be configured to hold the strainer 40 in an attached state using fasteners such as screws.

[0028] As described above, the diameter of at least the front end (protruding end) of the mounting portion 24 of the drain outlet drain 1 is configured to be larger than the left-to-right width of the locking hole 45 of the drain outlet strainer 40 and smaller than the diameter of the insertion hole 46 of the drain outlet strainer 40. The left-to-right width of the cutout portion of the mounting portion 24 is smaller than the diameter of the front end of the mounting portion 24 and larger than or equal to the left-to-right width of the locking hole 45 of the drain outlet strainer 40. The drain outlet strainer 40 is attached to the mounting portion 24 of the drain outlet drain 1 by inserting the mounting portion 24 of the drain outlet drain 1 into the insertion hole 46 of the main body 41 of the drain outlet strainer 40 and moving the drain outlet strainer 40 along the longitudinal direction of the locking hole 45 with the cutout portion of the mounting portion 24 of the drain outlet drain 1 aligned with the locking hole 45 of the drain outlet strainer 40. Therefore, for example, it is possible to prevent the drain strainer 40 from falling off the drain drain 1, compared to a case in which the drain strainer is kept attached to the drain drain by pressing the inner surface of the cylindrical part of the drain strainer with a leaf spring or the like provided on the drain strainer.

[0029] As described above, the attachment portion 24 is disposed above the through-hole 23 of the flange portion 2, and the insertion hole 46 of the drain strainer 40 is connected to the lower end of the locking hole 45 in the main body 41. Then, by moving the drain strainer 40 downward with the cutout portion of the attachment portion 24 of the drain drain 1 aligned with the locking hole 45 of the drain strainer 40, the drain strainer 40 is attached to the attachment portion 24 of the drain drain 1. Therefore, even though the drain strainer 40 is configured to be locked by the attachment portion 24 of the drain drain 1, the installation work of the drain strainer 40 to the drain drain 1 can be easily performed.

[0030] As described above, the drain outlet drain 1 is elastically deformable and is made of a material (for example, vinyl chloride material) that is softer than lead, so when placed in the drain outlet 30, it can be relatively easily fitted to the drain outlet 30 or the area to be renovated around the drain outlet 30. This also makes it possible to, for example, twist the tubular portion 3 when inserting it into the drain outlet 30. This also makes it relatively easy to cut it to a shape that fits the area to be renovated around the drain outlet 30. Therefore, with the drain outlet drain 1, renovation work on an existing drain outlet 31 can be performed relatively easily compared to one made of, for example, lead material. Instead of being made of vinyl chloride material, the drain outlet drain 1 can also be made of a material softer than other lead materials (such as an olefin-based thermoplastic elastomer).The drain outlet drain 1 can also be made of other resin materials (such as reinforced plastic materials).

[0031] 1, 2, and 4 to 10, the curved surface of the boundary between the horizontal portion 21 and the vertical portion 22 of the flange portion 2 of the drain for a drain outlet 1 is relatively small at the left-right center side of the flange portion 2 (near the through-hole 23) and relatively large at the left-right outer sides of the flange portion 2 (the edge sides of the flange portion 2). The curved surface of the boundary between the horizontal portion 21 and the vertical portion 22 of the flange portion 2 is configured to become larger from the left-right center side to the left-right outer sides of the flange portion 2. By configuring it in this way, the drain for a drain outlet 1 can be positioned to match the shapes of the drain outlet 30 and the existing drain for a drain outlet 31.

[0032] The drain outlet drain 1 may be configured to be used as a new drain outlet drain for the drain outlet 30, instead of being used to repair the existing drain outlet drain 31. The drain outlet strainer 40 may have main bodies 41 and 42 that are different in shape, instead of having the same shape. The drain outlet strainer 40 may have the locking hole 45 and the insertion hole 46 that are provided in either one of the pair of main bodies 41 and 42, instead of having the locking hole 45 and the insertion hole 46 provided in each of the pair of main bodies 41 and 42. [Explanation of symbols]

[0033] 1 Drain for drain outlet 2 Cylinder part 3. Tsuba 4 Inlet 5 Outlet 6 Pipe members 21 Horizontal 22 Vertical section 23 Through hole 24 Mounting part 30 Drain 31 Drain for existing drain outlet 40 Drain strainer 41 Main Unit 42 Main Unit 43 Rotation axis 44 Water vent 45 Locking hole 46 Insertion hole

Claims

1. A drain for a drain outlet that is used for repairing an existing drain installed at a drain outlet and is equipped with a drain outlet strainer, a flange portion in which a through hole is formed; A cylindrical portion configured in a cylindrical shape and disposed within the drain outlet, One end of the cylindrical portion is connected to the through-hole portion of the flange portion, and the cylindrical portion and the flange portion are integrally formed, The through hole of the flange portion is configured as an inlet through which wastewater flows in, The other end of the cylindrical portion is configured as an outlet through which the inflowing wastewater flows out, The flange portion includes an attachment portion to which the drain outlet strainer is attached. Drain for drain outlet.

2. The flange portion includes the horizontal portion and a vertical portion extending upward from an end of the horizontal portion, the cylindrical portion is configured to extend from the vertical portion of the flange portion to a side opposite to a side on which the horizontal portion is disposed, the attachment portion is configured to protrude from the vertical portion of the flange portion toward a side where the horizontal portion is disposed, The flange is placed on the drain outlet so that the horizontal portion of the flange contacts the floor surface located below the drain outlet and the vertical portion of the flange contacts the side surface around the drain outlet. The drain for a drain outlet according to claim 1.

3. The attachment portion is engaged with an engagement hole of the drain strainer to maintain the drain strainer attached. The drain for a drain outlet according to claim 2.

4. a boundary portion between the horizontal portion and the vertical portion of the flange portion is formed into a curved surface, The curved surface of the boundary between the flange and the lateral portion is configured to become larger from the left-right center side to the left-right outer side of the flange. The drain for a drain outlet according to claim 3.

5. Made of vinyl chloride material, The drain for a drain outlet according to any one of claims 1 to 4.

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