JP2006214144A - Discharge port drain - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a discharge port drain capable of solving such a problem that a water transmission pipe has the fear of slipping off from a joint pipe section only by outside fitting the water transmission pipe to the joint pipe section when the outer circumferential surface of the joint pipe section of the discharge port drain necessary to connect the water transmission pipe thereto remains in a circle. <P>SOLUTION: In the discharge port drain having the joint pipe section 2 outside fitting the water transmission pipe 14 thereto and a flange section 3, the joint pipe section 2 is made of a slightly elastic deformable hard material in the direction of a radius, and the front side thereof is molded in a tapered shape and, at the same time, when the water transmission pipe 14 is outside fitted to the joint pipe section 2, each swelling section 21 is pushed inward (the joint pipe section 2 is elastically deformed), and the water transmission pipe 14 can be firmly interconnected to the joint pipe section 2 by restoring force of the joint pipe section 2 by providing the vertical swelling sections 21 brought into pressure-contact with the inside of the water transmission pipe 14 to a plurality of places in the circumferential direction on the outer circumferential surface of the joint pipe section 2. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a drain port drain (having a flange portion at one end of a joint pipe portion) attached to a drain port formed on a slab of a balcony, for example.

  For example, a balcony slab is provided with a drainage passage for draining rainwater, washing water, etc., and this drainage passage uses a drain outlet drain that is attached to the drainage hole of the slab and connects the conduit. The

  As a known example of this drainage drain, there is the one shown in FIG. 9, but the drainage drain 1A shown in FIG. 9 has a flange at the upper end of the joint pipe part 2 having a relatively short length (for example, 100 to 200 mm). The part (rib) 3 is formed integrally. The joint pipe portion 2 has a circular outer peripheral surface 2a in the radial cross section over the entire length range. Further, the joint pipe part 2 is formed in a taper taper shape to a slight extent, so that the end part of the water guide pipe 14 can be easily connected (externally fitted) to the lower outer peripheral part of the joint pipe part 2. .

  In recent years, a glass fiber reinforced plastic (FRP) made of this kind of drainage drain has been on the market. The drainage drain 1A shown in FIG. 9 is also made of FRP. This type of FRP drain outlet has high strength even if the wall thickness is thin (for example, a thickness of 1 to 1.5 mm). In addition, as this kind of FRP drain outlet drain, there exist some which were described in Unexamined-Japanese-Patent No. 2004-107916 (patent document 1), for example.

  For example, as shown in FIG. 10, the drain outlet 1 </ b> A in FIG. 9 is formed by strongly press-fitting (outside fitting) the upper end opening 14 a of the water conduit 14 into the outer peripheral surface 2 a of the joint pipe part 2 from below. In a state where the water guide pipe 14 is continuous, the water guide pipe 14 and the joint pipe portion 2 are inserted into the drain hole 12 formed in the slab 11 from above, and the flange portion 3 of the joint pipe portion 2 is connected to the rim portion (recessed) of the drain hole 12. Set on step 13). The water conduit 14 is generally made of vinyl chloride (having a thickness of about 2 to 3 mm), but this kind of vinyl chloride conduit 14 is hardly elastically deformed in the radial direction. In addition, as shown in FIG. 10, if the thickness of the flange portion 3 of the drain outlet is thin, the protrusion height of the upper surface of the flange portion 3 is lowered, and rainwater or the like on the slab 11 flows into the joint pipe portion 2. This is advantageous in terms of construction.

JP 2004-107916 A

  In the conventional drain outlet drain 1 </ b> A shown in FIG. 9, the end opening 14 a of the water conduit 14 is pressed into the outer peripheral surface of the joint tube 2 from below in order to connect the water conduit 14 to the lower portion of the joint tube 2. Is done by. In addition, an adhesive may be applied to the connecting portion between the water guide pipe 14 and the joint pipe portion 2 as necessary.

  By the way, when the drain outlet 1A of FIG. 9 is used, since the outer peripheral surface 2a of the joint pipe part 2 and the end opening edge 14a of the water guide pipe 14 are each circular, the end opening 14a of the water pipe 14 is connected to the joint. When the outer peripheral surface 2a of the pipe part 2 is externally fitted, when the entire circumference of the end opening edge 14a of the water conduit 14 comes into contact with the entire circumference of the joint pipe outer peripheral surface 2a (the state of FIG. 10), it is more than that. The fitting (entrance) between the two becomes impossible. That is, if the entire circumference of the end opening edge 14a of the water conduit 14 simultaneously contacts the entire circumference of the joint pipe outer peripheral surface 2a, the outer peripheral surface 2a of the joint pipe part 2 cannot be elastically deformed radially inward. Therefore, even if it is going to fit both pipes deeply further, both pipes do not enter any more. This means that the joint portion of both pipes is relatively weak so that it is merely in contact.

  Therefore, in the case where the conventional drain outlet 1A shown in FIGS. 9 and 10 is used, the connection strength between the joint pipe portion 2 and the water conduit 14 is weak (the connection strength is just the degree of contact). If no adhesive is interposed between the connecting portions of the pipes, the water guide pipe 14 may come off the joint pipe part 2. Further, even if an adhesive is interposed between the connecting portions of both pipes, the adhesive function of the adhesive may be weakened due to changes over time, and the water guide pipe 14 may come off.

  In view of the above-described problems of the conventional drain outlet drain, the present invention can increase the connection strength between the joint pipe portion and the water conduit, and can eliminate the need for an adhesive between the joint portions of the two pipes. The purpose is to provide drainage drains.

  The present invention has the following configuration as means for solving the above problems. The present invention is directed to a drain outlet that is attached to a drain hole formed in, for example, a balcony slab.

Invention of Claim 1 The drainage drain of the invention of claim 1 of the present invention has a joint pipe part for fitting the water guide pipe outside, and a flange part at one end (upper end part) of the joint pipe part.

  This drain outlet drain is installed, for example, by inserting a joint pipe part into a drain hole formed in a slab of a balcony or the like, and placing a flange part on the upper surface of the mouth edge of the drain hole. A plurality of types of diameters and outer diameters of the flange portions can be manufactured according to the inner diameter of the drain hole.

  The joint pipe portion of the drain outlet drain is made of a hard material that can be slightly elastically deformed in the radial direction, and the tip side is formed in a tapered shape. In the first aspect of the present invention, the drain outlet is preferably made of FRP (made of glass fiber reinforced plastic), but may be made of general-purpose synthetic resin (eg, made of vinyl chloride).

  The joint pipe portion may be circular in cross section or polygonal (triangle to octagon). The length of the joint pipe is about 100 to 200 mm (preferably 120 to 160 mm), and the outer diameter of the joint pipe is generally 50 to 70 mm. Further, the difference between the outer diameter of the proximal end portion and the outer diameter of the distal end portion in the joint pipe portion may be about 5 to 10 mm, and the outer surface of the joint pipe portion has a gently tapered surface degree. These dimensions are not particularly limited, and can be appropriately changed in design.

  On the outer peripheral surface of the joint pipe portion, a plurality of vertical bulging portions that are in pressure contact with the inner surface of the water guide pipe when the water guide pipe is externally fitted to the joint pipe portion are provided in the circumferential direction. In the case of a circular joint pipe part, this bulge part can be partially formed in a vertically convex shape at a plurality of places (for example, about 3 to 8 places) on the outer peripheral surface of the joint pipe part. Further, in a polygonal (triangle to octagonal) joint pipe portion, each ridge line portion can be a bulging portion.

  In addition, the water guide pipe connected to this drain outlet drain has an inner diameter in which the inner surface of the upper end portion is in pressure contact with the outer surface of each bulging portion at the intermediate portion in the longitudinal direction of the joint pipe portion. Moreover, this water conduit does not have elasticity in the radial direction.

  In this drain outlet drain, with the water conduit connected to the joint pipe, insert the water conduit and joint pipe from above into the drain hole of the slab to be installed, and the flange part on the upper edge of the mouth of the drain hole. Set it on top.

  By the way, in order to connect the conduit pipe to the joint pipe portion, the upper end portion of the conduit pipe is externally fitted to the joint pipe portion from below, but the upper end side of the conduit pipe is fitted to the joint pipe portion by a predetermined depth. When they are combined, the inner surface of the upper end portion of the water guide pipe abuts with each bulging portion of the outer peripheral surface of the joint pipe portion. At this time, parts other than each bulging part in the joint pipe outer peripheral surface are not in contact with the inner surface of the water guide pipe (has a slight gap). When the water guide pipe is pushed further strongly into the joint pipe portion from that state, the joint pipe portion is tapered, so that the water guide pipe is in contact with each bulging portion of the joint pipe portion (the inner surface of the water guide pipe is in contact). The portion is pushed inward in the radial direction, and after the water guide pipe has entered to a predetermined depth, no further entry is possible. In this state, each bulging portion is strongly pressed against the inner surface of the rim portion of the water guide pipe by the restoring force of the joint pipe portion, and the coupling force between the water guide pipe and the joint pipe portion becomes strong.

Invention of Claim 2 In the invention of claim 2 of the present application, in the drain drain according to claim 1, the joint pipe portion and the flange portion are integrally formed of glass fiber reinforced plastic (FRP). In addition, the drain outlet made of FRP has higher strength than that of synthetic resin.

  By the way, as described in the explanation part of claim 1, in order to make the joint pipe portion elastically deformable in the radial direction, the thickness of the joint pipe portion is made relatively thin (for example, the thickness is set to 1 to However, if the drain drain is made of FRP as in claim 2, it is sufficient even if the thickness of the joint pipe portion is thin (for example, 1 to 1.5 mm). Has strength.

  In addition, even if the thickness of the flange portion is thin (for example, 1 to 1.5 mm), it is sufficient strength if it is made of FRP. When the drain is installed in a drain hole portion such as a slab, the protruding height of the flange portion can be lowered. In this case, rainwater or the like easily flows into the joint pipe portion with the drain outlet drain installed.

Effect of the Invention of Claim 1 The drain of the present invention is made of a hard material that can be slightly elastically deformed in the radial direction and the tip side is formed into a tapered shape. A plurality of vertical bulging portions that are in pressure contact with the inner surface of the water conduit are provided on the outer peripheral surface in the circumferential direction. Then, when the end opening of the conduit pipe is pushed firmly into the outer peripheral surface of the joint pipe portion, the water guide pipe enters each bulging portion of the joint pipe portion radially inward (while elastically deforming the joint pipe portion). As a result, each bulging portion comes into strong pressure contact with the inner surface of the rim portion of the water guide pipe by the restoring force of the joint pipe portion.

  Therefore, the drain outlet according to the first aspect has an effect that the coupling force of the water guide pipe is strong with respect to the joint pipe portion, and the water guide pipe is not accidentally detached from the joint pipe portion. In addition, if the coupling force of the conduit pipe to the joint pipe portion is strong as described above, there is also an effect that an adhesive is not required for the coupling between the joint pipe portion and the conduit pipe.

Effect of the Invention of Claim 2 In the invention of claim 2 of the present application, in the drain of the drain of claim 1, the joint pipe portion and the flange portion are integrally formed of glass fiber reinforced plastic (FRP). Thus, even if the thickness of the joint pipe part and the flange part is thin (for example, 1 to 1.5 mm), the drain outlet made of FRP has sufficient strength.

  Therefore, in the drain outlet of claim 2, in addition to the effect of claim 1, there is no problem in terms of strength even if the joint pipe portion is thin (for example, 1 to 1.5 mm) that can be elastically deformed. On the other hand, if the thickness of the flange portion is reduced, the projection height of the flange portion can be lowered when this drain port drain is installed in a drain hole portion such as a slab. It is easy to flow into the joint pipe part).

  Hereinafter, the drain outlet of the embodiment of the present application will be described with reference to FIGS. 1 to 8. FIGS. 1 to 6 show the first embodiment, and FIGS. 7 and 8 show modifications of the first embodiment ( 2nd Example, 3rd Example) is shown. In addition, the drain outlet 1 made into object by this application is inserted into the drain hole 12 provided in slabs 11, such as a balcony, for example, as shown in FIG. 4, and is used as a part of drainage channel.

  The drain outlet 1 of the first embodiment shown in FIGS. 1 and 2 is made of a hard material (made of FRP in this embodiment), and has a flange portion (rib) at the upper end portion of a relatively short joint pipe portion 2. 3 is integrally molded. Further, the joint pipe portion 2 is formed in a tapered shape which is formed so as to be slightly elastically deformable in the radial direction and is slightly narrowed toward the tip side. As shown in FIG. 4, the drain outlet 1 is manufactured in various sizes depending on the thickness of the slab 11 to be attached, the inner diameter of the drain hole 12, the inner diameter of the water conduit 14 to be connected, and the like.

In addition, each dimension of the drainage drain 1 of the Example of FIG.1 and FIG.2 can be made as follows, for example.
・ Fitting pipe part 2 length: 100 to 200 mm
・ Outer diameter of joint pipe part 2; taper taper of 50 to 70 mm (the difference between the outer diameter of the base end and the outer diameter of the tip is about 5 to 10 mm)
・ Outer diameter of flange 3; 120 to 150 mm
・ Thickness of joint pipe part 2 and flange part 3; 1 to 1.5 mm
In addition, the water guide pipe 14 connected to the joint pipe part 2 is a pipe that can be externally fitted to a substantially intermediate position in the length direction of the joint pipe part 2.

  By the way, in order to form the joint pipe part 2 made of a hard material so as to be elastically deformable in the radial direction, it is necessary to reduce the wall thickness (for example, 1 to 1.5 mm), but a general-purpose synthetic resin pipe (for example, If the wall thickness of the vinyl chloride pipe is reduced to 1 to 1.5 mm, the strength as the drain outlet 1 cannot be secured. On the other hand, the drain outlet 1 made of FRP can sufficiently secure the strength as the drain outlet even if the wall thickness is reduced to about 1 to 1.5 mm. The flange portion 3 is fixed on the upper surface of the rim of the drainage hole 12 of the slab 11 as shown in FIG. 4, but if the flange portion 3 is also made of FRP, the wall thickness is increased. Even if it is thin (for example, 1 to 1.5 mm), it has sufficient strength.

  On the outer peripheral surface of the joint pipe portion 2 are vertically bulged portions 21, 21, 21 that are pressed against the inner surface 14 a of the rim portion of the water guide pipe 14 when the water guide pipe 14 is externally fitted to the joint pipe portion 2.・ Multiple locations are provided in the circumferential direction. In the first embodiment shown in FIGS. 1 and 2, a tapered taper pipe having a circular cross section is adopted as the basic shape of the joint pipe portion 2, and four locations (angle 90 ° intervals) on the outer peripheral surface of the joint pipe portion 2. Are formed with bulged portions 21, 21,. The protruding height of each of the bulging portions 21, 21,... Is, for example, about 0.5 to 2 mm, and the width is about 5 to 10 mm. In this first embodiment, each of the bulging portions 21, 21,... Is a considerable portion of the intermediate portion excluding a small length range of the proximal end portion and the distal end portion of the joint pipe portion 2 as shown in FIG. Although formed in a length range (for example, a range of 50 to 70 mm), in another embodiment, the bulging portions 21, 21... Are formed through the entire length of the joint pipe portion 2. Also good.

  The drain outlet 1 of the first embodiment shown in FIGS. 1 and 2 is formed using a mold 4 as shown in FIG. In the molding die 4 shown in FIG. 3, the center core 6 protrudes upward at the center portion of the base 5 larger than the outer shape of the flange portion 3. The center core 6 is a tapered taper having the same diameter as the inner diameter of the joint pipe portion 2 to be formed, and is formed with protrusions 7, 7,. Yes.

  Then, a glass fiber mat 3A for forming a perforated flange portion is laid on the pedestal 5, and a glass fiber mat 2A for forming a joint tube portion is wound around the outer peripheral surface of the pedestal 5, and the FRP is applied to each mat 2A, 3A The matting resin is impregnated, and the mats 2A and 3A are solidified with the FRP molding resin. The joint portion between the flange portion forming mat 3A and the joint pipe portion forming mat 2A is reinforced by an appropriate method. The outer surfaces of the mats 2A and 3A may be pressed against the forming die 4 (the upper surface of the base 5 and the outer peripheral surface of the core 6) with a pressing die. Then, after each of the mats 2A and 3A is solidified with the FRP molding resin, the drain product 1 shown in FIG. 1 can be molded by removing the molded product from the molding die 4.

  In the drain outlet 1 of the first embodiment, the water guide pipe 14 and the joint are connected to the drain hole 12 such as the slab 11 to be installed as shown in FIG. The pipe part 2 is inserted, and the flange part 3 is set on the upper surface (concave step part 13) of the mouth edge part of the drain hole 12.

  By the way, in order to connect the water guide pipe 14 to the joint pipe portion 2, the upper end portion of the water guide pipe 14 is externally fitted to the joint pipe portion 2 from below, but the upper end side of the water guide pipe 14 is connected to the joint pipe portion 2. When the outer pipe 14 is fitted outside the predetermined depth, the inner surface 14 a of the upper end portion of the water guide pipe 14 abuts with the bulging portions 21, 21,. At this time, portions other than the respective bulging portions 21, 21,... On the outer peripheral surface of the joint pipe portion 2 are not in contact with the inner surface of the water conduit 14 (has a slight gap). Then, when the water guide pipe 14 is further pushed into the joint pipe portion 2 from that state, the joint pipe portion 2 is tapered, so that the water guide pipe 14 is connected to each bulging portion 21 of the joint pipe portion 2. 21... Are pushed inward in the radial direction, and after the water guide pipe 14 has entered to a predetermined depth, no further entry is possible (state of FIG. 4). In this state, each bulging portion is strongly pressed against the inner surface of the rim portion of the water guide pipe by the restoring force of the joint pipe portion, and the coupling force between the water guide pipe and the joint pipe portion becomes strong.

  FIG. 5 is a cross-sectional view taken along the line V-V in FIG. 4 and is a portion where the water conduit 14 is not externally fitted. In the portion of FIG. 5, the bulging portions 21, 21,... Are not pressed inward, so the substantially protruding state is maintained. On the other hand, FIG. 6 is a cross-sectional view taken along the line VI-VI in FIG. In the portion of FIG. 6, the bulging portions 21, 21,... Are pressed inward by the water guide pipe inner surface 14 a, and the joint pipe portion 2 is elastically deformed.

  In the state of FIG. 6 (a state where the joint pipe portion 2 is elastically deformed), a restoring force is generated in the joint pipe portion 2 in contact with the inner surface of the water guide pipe (the inner surface 14a of the rim portion), and each bulging portion 21 The outer surface of each of the bulging portions 21, 21,... Is strongly pressed against the inner surface 14 a of the rim portion of the water conduit 14. Therefore, the coupling force between the water guide pipe 14 and the joint pipe portion 2 is strong, and the water guide pipe 14 can be connected without interposing an adhesive between the inner surface of the water guide pipe 14 and the outer surface of the joint pipe portion 2. It does not come out of the joint pipe part 2 carelessly.

  Each drain outlet 1 of the second embodiment shown in FIG. 7 and the third embodiment shown in FIG. 8 is a modification of the joint pipe portion 2 portion.

  In the second embodiment shown in FIG. 7, the joint pipe portion 2 is formed into a quadrangular cross-section quadrangle, and the four ridge portions are bulged portions 21, 21.

  In the third embodiment of FIG. 8, the joint pipe portion 2 is formed into a hexagonal cross section that is nearly circular, and the six ridge portions are bulged portions 21, 21.

  7 and 8, when the water guide pipe 14 is externally fitted to the joint pipe portion 2 and strongly pressed into the joint pipe portion 2, each ridge line portion (becomes a bulging portion) 21, 21. Are pressed by the inner surface 14a of the upper end portion of the water guide pipe 14 and pushed inward, and a strong restoring force is generated in the joint pipe portion 2 of the contact portion. Therefore, also in the drain outlet 1 of each Example of FIG.7 and FIG.8, the water conduit 14 can be strongly combined with the joint pipe part 2 part.

  7 and 8, the other configurations and functions are the same as those of the first embodiment.

It is a perspective view of the drain outlet drain of the 1st example of this application. It is a bottom view of the drain outlet drain of FIG. It is a perspective view of the shaping | molding die for manufacturing the drain outlet drain of FIG. It is sectional drawing which shows the use condition of the drain outlet drain of FIG. It is VV sectional drawing of FIG. It is VI-VI sectional drawing of FIG. It is a perspective view of the drain outlet drain of the 2nd example of this application. It is a perspective view of the drain outlet drain of this-application 3rd Example. It is a perspective view of the drain outlet drain of a well-known example. It is sectional drawing which shows the use condition of the drain outlet drain of FIG.

Explanation of symbols

  1 is a drain outlet, 2 is a joint pipe part, 3 is a flange part, 14 is a water conduit, 14a is an inner surface of the upper end part, and 21 is a bulging part.

Claims (2)

A drain outlet having a joint pipe part (2) for fitting a water conduit pipe (14) and a flange part (3) at one end of the joint pipe part (2),
The joint pipe part (2) is made of a hard material that can be slightly elastically deformed in the radial direction and the tip side is formed into a tapered shape,
When the water guide pipe (14) is externally fitted to the joint pipe part (2) on the outer peripheral surface of the joint pipe part (2), it is elastically deformed and press-contacts the inner surface of the water guide pipe (14). Plural bulging portions (21, 21,...) Are provided in the circumferential direction,
Drain outlet drain characterized by that. The drain outlet according to claim 1, wherein the joint pipe portion (2) and the flange portion (3) are integrally formed of glass fiber reinforced plastic.

Images