JP6510811B2 - Overflow fitting - Google Patents

Description

  The present invention relates to overflow joints.

Conventionally, for example, as a means for overflowing flowing water in the middle of the vertical weir, in case the vertical weir installed in the vertical direction in the building is clogged with foreign matter or there is precipitation exceeding the amount of water that can be drained, for example The overflow structure of the vertical weir of reference 1 is known.
The overflow structure of this vertical weir is provided with a branch pipe in the vertical pipe connecting the upper weir and the lower weir. The branch pipe constitutes an overflow portion that opens upward.

Patent No. 5321407 gazette

However, the conventional overflow structure has a problem that it is easy to take in foreign matter and clog it because the overflow portion is opened upward, and can not perform a desired function at the time of rainfall.
Thus, the present invention provides an overflow joint that prevents foreign matter from entering and allows the rainwater to properly overflow in an emergency.

The overflow joint of the present invention is provided below the upper connection portion and a cylindrical upper connection portion connected to the upper ridge of the ridge divided into an upper ridge and a lower ridge, and the lower ridge The lower connection portion has a cylindrical peripheral wall portion, and the upper connection portion has a cylindrical cover portion that covers the peripheral wall portion. And the introduction channel for guiding the rain water to the outside of the normal flowing water pipe connecting the pipe line of the upper weir and the pipe line of the lower weir by the peripheral wall part and the cover part, and the rain water A discharge flow channel for flowing downward is formed, and the introduction flow channel and the discharge flow channel are adjacent on the same circumference.
According to this configuration, since the introduction channel and the discharge channel of the rainwater rising from the lower weir are formed adjacent to each other on the same circumference, the flowing water path of the rainwater can be suppressed to two layers.

A recess for expanding the space to the outside of the normal flowing water pipe by the unevenness formed in the circumferential direction of the peripheral wall portion of the present invention, the recess for extending the space in the vertical direction is formed for introducing rainwater and the introduction groove Forming a recess relatively toward the flowing water pipe side and forming an axially extending drainage groove for the rainwater, and the upper connection portion is inserted from above into the inside of the peripheral wall portion and the upper end portion of the peripheral wall portion The cover portion is disposed on the outside of the peripheral wall portion from above to cover at least a part of the side opening of the discharge groove, and the introduction groove and the male side are provided. The connection wall portion may form the introduction flow path, and the discharge groove and the cover portion may form the discharge flow path.
The peripheral wall portion of the present invention can simply form the introduction flow passage and the discharge flow passage on the same circumference by forming the uneven shape in the circumferential direction.

In the male side connection wall portion of the present invention, a plurality of notch portions which are cut upward from the lower end may be formed in the circumferential direction.
With this configuration, it is possible to prevent unnecessary overlap between the male side connection wall portion and the female side connection wall portion, and secure a rainwater storage space in the overflow joint.

A tongue piece covering the notch may be protruded upward in the axial direction above the discharge groove of the peripheral wall portion of the present invention when the male side connection wall portion is fitted inward.
With this configuration, it is possible to prevent unnecessary overlap between the male side connection wall portion and the female side connection wall portion, and secure a rainwater storage space in the overflow joint.

At least one of the upper side connection portion and the lower side connection portion of the present invention may be formed with a display portion for positioning the upper side connection portion and the lower side connection portion in the circumferential direction.
By this configuration, circumferential alignment of the upper connection portion and the lower connection portion can be facilitated.

The total cross-sectional area of the discharge channel of the present invention may be 5 cm ² or more and 16 cm ² or less .
According to this configuration, drainage of rainwater can be efficiently performed.

The upper gutter and the upper connection part of the present invention are liquid-tightly bonded by inserting the upper connection part into the conduit of the upper gutter, and at a position of 40 cm or more and 2.4 m or less from the ground It may be provided at the base.
This causes the siphon phenomenon in the vicinity of the overflow joint of the upper weir assuming that the height from the bottom of the balcony on the second floor of a general house or apartment to the surface (that is, the height for one floor) is about 3 m. In order to achieve this, it is necessary to have an amount of water having a length of about 60 cm or more above the lower end of the upper bowl. Therefore, according to this configuration, the siphon phenomenon can be effectively generated in the overflow joint.
According to this configuration, drainage of rainwater can be efficiently performed.

It is preferable that the displacement of this invention is 50 L / min or more and 120 L / min or less.
According to this configuration, drainage of rainwater can be efficiently performed.

  The overflow joint of the present invention has the effect of preventing the entry of foreign matter and appropriately causing rainwater to overflow in an emergency.

BRIEF DESCRIPTION OF THE DRAWINGS It is the perspective view which abbreviate | omitted the cover part and showed the overflow coupling which concerns on the 1st Embodiment of this invention. It is a longitudinal cross-sectional view which shows the overflow coupling which concerns on the 1st Embodiment of this invention. It is the longitudinal cross-sectional view which showed the upper side connection part of the overflow coupling which concerns on the 1st Embodiment of this invention. It is the upper perspective view which showed the lower side connection part of the overflow coupling which concerns on the 1st Embodiment of this invention. It is a lower perspective view of the overflow coupling concerning a 1st embodiment of the present invention. It is a lower perspective view of the overflow coupling which concerns on the 2nd Embodiment of this invention. It is the longitudinal cross-sectional view which showed the upper side connection part of the overflow coupling which concerns on the 2nd Embodiment of this invention. It is the upper perspective view which showed the lower side connection part of the overflow coupling which concerns on the 2nd Embodiment of this invention.

  Hereinafter, embodiments of the overflow joint of the present invention will be described with reference to the drawings. In addition, the dimension of each part of the figure used by the following description is not necessarily the same as an actual thing, and can be changed suitably.

  As shown in FIG. 1 or FIG. 2, the weir 2 to which the overflow joint 1A of the first embodiment is applied is installed vertically along the outer wall surface (not shown) of the building. In particular, the overflow joint 1A is suitably used for a balcony provided in a building or a weir 2 connected below a flat roof. The crucible 2 is formed in a substantially cylindrical shape and is divided into an upper crucible 2a and a lower crucible 2b.

  The overflow joint 1A mainly has the following configuration. That is, the overflow joint 1A is provided at an intermediate portion in the vertical direction of the crucible 2. The overflow joint 1A includes a cylindrical upper connecting portion 3 connecting the upper rod 2a, and a cylindrical lower connecting portion 4 provided below the upper connecting portion 3 and connecting the lower rod 2b. There is. The lower connection portion 4 of the overflow joint 1A has a cylindrical peripheral wall portion 5. The upper connection portion 3 of the overflow joint 1A has at least a cylindrical cover portion 6 (not shown in FIG. 1, see FIG. 2). In the overflow joint 1A, the conduit H1 of the upper weir 2a and the conduit H2 of the lower weir 2b are linearly connected by the peripheral wall 5 and the cover 6 (that is, rainwater overflows from the weir) The same applies to the following cases): an introduction channel 7 for guiding the rain water to the outside of the flowing water channel H3 and a discharge channel 8 for letting the rain water flow downward. The introduction flow path 7 and the discharge flow path 8 are adjacent to each other on the same circumference (in the present embodiment, the same circumference) R.

As shown in FIG. 2 or FIG. 3, the upper connection portion 3 has a cylindrical insertion port 10 to be inserted into the channel H1 of the upper rod 2 a, a cover 6, and a male connection wall 15. There is.
The insertion port 10 is formed to have an outer diameter dimension substantially the same as an inner diameter dimension of the upper rod 2a so that the outer wall surface 10a is in close contact with the inner wall surface 2m of the upper rod 2a. The insertion port 10 is bonded so as to be liquid tight with the upper lid 2a. Since the diameter of the pipe line H1 of the upper weir 2a is reduced by the fluid-tight opening 10, the rainwater is accumulated in the upper weir 2a from the opening 10 from the opening after heavy rain and becomes full of water. , Can generate siphon phenomenon.
In a part of the upper connection portion 3 in the circumferential direction, a convex portion (display portion) 11 to be fitted to a rib P (see FIG. 1) formed on the weir 2 is formed.

The male connection wall portion 15 is a tubular portion 16 continuously formed at the lower end of the insertion port 10, and a downwardly extending upper tongue provided at the lower end of the tubular portion 16 at equal intervals in the annular direction. It has 17 and. A notch 18 cut upward is formed between the upper tongue pieces 17 and 17.
The cover 6 prevents the rainwater from being scattered when the rainwater flows into the discharge groove 28 described later, and after the diameter is expanded in a tapered shape from the lower end of the insertion port 10, the cover 6 faces the male connection wall 15. At a predetermined interval, they are formed in a cylindrical shape downward at a constant diameter about the axis L1.

  As shown in FIG. 2 or FIG. 4, the lower connection portion 4 is a peripheral wall portion 5 that receives rainwater when it rains in excess of the drainage capacity of a drainage pipe (not shown. The same applies hereinafter) installed at the lower part of the lower rod 2 b. And a cylindrical insertion port 19 to be inserted into the lower rod 2b.

  As shown in FIG. 1 or FIG. 4, the peripheral wall portion 5 is formed in a cylindrical shape having irregularities in the circumferential direction centering on the axis L <b> 1 as a whole. Specifically, the plurality of peripheral wall portions 5 are provided in an annular direction at equal intervals in an arc shape (that is, an arc shape forming a normal flowing water channel H3) which can be in close contact with the outer peripheral surface of the male side connection wall portion 15. And a plurality of recesses for expanding the space to the outside (in the present embodiment, radially outward in the present embodiment) of the female side connection wall 20 and the normal flowing water line H3 and guiding the rainwater to the outside of the normal flowing water line H3. The introduction wall portions 21 are alternately provided in the circumferential direction.

The introduction wall 21 has a first side wall 22 radially rising from the side ends 20 a and 20 a of the female connection wall 20, a second side wall 23 provided between the first side wall 22, and a second side wall 22. A bottom wall 24 disposed at the lower end of the first side wall 22 and the second side wall 23 is provided. The introduction groove 27 is formed by these wall portions. The introduction groove 27 is configured such that the upper side and the side facing the flowing water conduit H3 are open, and the lower side is closed by the bottom wall portion 24. The bottom wall portion 24 is inclined downward toward the conduit H2.
On the bottom wall portion 24 of the introduction wall portion 21Y, a convex portion 11 to be fitted to a rib P (see FIG. 1) formed on the weir 2 is formed.

In addition, one introductory wall part 21Y of several introduce | transducing wall parts 21 and 21 is formed according to the external appearance of the rib P of the collar 2. As shown in FIG.
The female connection wall portion 20 has a lower tongue piece 30 which protrudes above the height position of the upper end of the introduction wall portion 21.

  The introduction wall portion 21 is formed on the peripheral wall portion 5 so as to be recessed relatively toward the flowing water conduit H3 as viewed from the outer wall surface side, and a discharge groove 28 for rain water extending in the direction of the axis L1 is formed. Further, in both the introduction groove 27 and the discharge groove 28, the recess extends in the vertical direction. The introduction grooves 27 and the discharge grooves 28 are alternately formed in the circumferential direction on the same circumference R, not in the radial direction.

  As shown in FIG. 1 or FIG. 2, the upper side connection portion 3 and the lower side connection portion 4 are male when the male side connection wall portion 15 is inserted inside the female side connection wall portions 20, 20. An upper tongue piece 17 of the side connection wall portion 15 is disposed so as to close a part of the introduction groove 27 (that is, the upper end portion of the peripheral wall portion 5), and forms an introduction flow path 7. Specifically, the upper tongue piece 17 of the male side connection wall portion 15 closes the side opening of the introduction groove 27 in a range in which the dimension X1 in the vertical direction is preferably 0 mm to 10 mm, more preferably 0 mm to 5 mm, At the same time, the notch 18 in which the lower tongue 30 of the female connection wall 20 is formed between the upper tongues 17 of the male connection wall 15 has a vertical dimension X2 of preferably 0 mm-10 mm, Preferably, it is disposed to close in a range of 0 mm to 5 mm.

  Then, as shown in FIG. 5, when the cover 6 is arranged to cover the entire peripheral wall 5 (see FIG. 2), the cover 6 is in contact with the second side walls 23, 23 shown in FIG. A discharge passage 8 is formed so as to cover the radially outer side (i.e., the side opening) of the discharge groove 28 and extend downward. Further, as shown in FIG. 2, the notch 18 is closed by the lower tongue piece 30 of the female connection wall 20, and a temporary storage space 9 for rainwater is formed between the tube 16 and the cover 6. ing.

The total cross-sectional area of the plurality of discharge channels 8 may be 5 cm ² or more and 16 cm ² or less, and more preferably 8 cm ² or more and 10 cm ² or less. Within this range, the amount of drainage can be secured while preventing the entry of insects and other animals. Further, the amount of drainage may be 50 L / min or more and 120 L / min or less, and is most preferably 70 L / min or more and 100 L / min or less.

The insertion opening 19 is formed to have substantially the same outer dimension as the inner diameter of the lower rod 2b so that the outer wall surface can be liquid-tightly fitted to the inner wall surface 2t of the lower rod 2b.
The overflow joint 1A configured as described above is provided on the weir 2 at a position of 40 cm or more and 2.4 m or less from the ground. In order to generate the siphon phenomenon near the overflow joint 1A of the upper weir 2a, although depending on the diameter of the weir 2, the full water amount of about 60 cm or more is high from the lower end of the upper weir 2a It will be necessary. Since the height from the bottom of the balcony on the second floor of a general house or apartment to the surface (ie the height for the first floor) is approximately 3 m, prevent rainwater from accumulating in the balcony even when full. Therefore, the position at which the overflow joint 1A is provided is preferably 2.4 m or less, which is about 60 cm lower than the bottom of the balcony.

  As the installation position of the overflow joint 1A, it may be installed at a position higher than the predicted flood water level, but the height of the foundation of a general house is about 40 cm, so even in the underfloor flood 2 In order to drain water, the overflow joint 1A is preferably installed at a height of 40 cm or more, and is preferably installed at a height of 1 m or more from the viewpoint of workability and management.

Next, drainage of rainwater by the overflow joint 1A will be described.
As shown in FIG. 1, rainwater usually flows down from the upper weir 2a, and the outlet 10 of the upper connection portion 3, the male connection wall 15, the female connection wall 20 of the peripheral wall 5, and the lower side. It flows down along the inner wall surface of the outlet 10 of the connection portion 4 toward the lower rod 2b. Rainwater may enter the introduction groove 27, but it travels along the inner surface of the first side wall 22, the second side wall 23, and the bottom wall 24 of the introduction groove 27 as long as the displacement of the lower weir 2b is not exceeded. Flow downward. Then, the water is discharged to a rainwater infiltration weir or the like buried in the ground through a drain pipe (not shown) connected to the lower weir 2b.

  On the other hand, when heavy rain exceeds the drainage capacity of the drainage pipe or when the rainwater infiltration weir is flooded, the rainwater gradually accumulates in the lower weir 2b and the water level rises. When the water level of the rainwater reaches the inside of the peripheral wall portion 5, a part of the rainwater is temporarily stored in the normal flowing water line H3 and the introduction groove 27. When the amount of precipitation exceeding the drainage capacity of the drainage pipe does not exceed the volume of the introduction groove 27, the rain water is gradually drained while being temporarily stored in the peripheral wall portion 5.

  When the amount of precipitation exceeding the drainage capacity of the drainage pipe exceeds the volume in the water flow path H3 and the introduction groove 27, the rainwater further raises the water level and reaches the upper opening of the introduction groove 27 (introduction flow path 7). Overflow into the discharge groove 28. The rainwater overflowing to the discharge groove 28 flows down the discharge groove 28 and the cover portion 6 (that is, in the discharge flow passage 8) and drains from the overflow joint 1A.

  Thus, according to the overflow joint 1A, when there is a large amount of precipitation within a given time, rain water is efficiently overflowed and overflowed at the drainage port of the balcony communicating with the drainage pipe and the weir 2 (not shown). Can be prevented, and flooding of the ground or the balcony can be avoided.

  Further, since the overflow joint 1A is alternately formed on the same circumference R so as to be adjacent to the introduction flow path 7 (introduction groove 27) and the discharge flow path 8 (discharge groove 28), On the other hand, it is possible to prevent a large protrusion in the radial direction, and it is possible to form a beautiful rain gutter structure.

Further, the overflow joint 1A has an effect that foreign matter can be effectively prevented from entering the inside of the overflow joint 1A because the discharge flow path 8 is formed downward.
In particular, as shown in FIG. 4, the overflow joint 1A has a configuration in which the discharge grooves 28 are formed at intervals along the circumferential direction of the lower connection portion 4, that is, the discharge grooves 28 are divided into a plurality. Therefore, the entry of foreign matter such as insects can be prevented more effectively.

  Moreover, since the introduction groove 27 which expanded space to the outer side of the normal flowing water channel H3 is formed in the surrounding wall part 5, the rainwater which came up from the lower weir 2b can be stored temporarily. Further, a temporary storage space 9 for rainwater is further formed above the introduction groove 27 by the male side connection wall portion 15 and the cover portion 6. Therefore, the overflow joint 1A has an effect that the overflow of the rainwater can be delayed and the rainwater can flow down to the drainage port (not shown) as much as possible through the lower rod 2b.

  Further, the upper connection portion 3 is inserted into the inside of the upper rod 2a, the overflow joint 1A and the upper rod 2a and the lower rod 2b are bonded in a liquid tight manner, and the overflow joint 1A is 40 cm or more from the ground Since it is provided at a position of 2.4 m or less, an effect of generating a siphon phenomenon and strongly draining rainwater can be obtained. Further, by being installed at such a height, it is possible to obtain an effect that the overflow joint 1A can be prevented from being easily submerged.

In addition, since the overflow joint 1A has a sufficient cross-sectional area of the discharge groove 28 and the temporary storage space 9 for rainwater is formed, the amount of drainage is 50 to 100 L / min or less even if it is formed compactly. The effect of easily securing the amount of drainage can be obtained.
Moreover, since the upper tongue piece 17 which protrudes below the male side connection wall 15 and the lower tongue piece 30 which protrudes upward to the female side connection wall 20 are provided, the upper side connection portion 3 and the lower side A play can be given to the overlap with the connection portion 4. Therefore, the overflow joint 1A can absorb some installation deviations of the upper and lower positions, and the effect of being able to prevent rainwater leakage can be obtained.

  Further, predetermined positions in the circumferential direction of the upper connection portion 3 of the overflow joint 1A and the bottom wall portion 24 of the introduction wall portion 21Y of the lower connection portion 4 are provided with ribs P of the upper rib 2a and the lower rib 2b, respectively. Convex parts 11, 11 to be fitted are formed. Accordingly, the positional relationship between the upper connection portion 3 and the lower connection portion 4 can be easily determined via the upper rod 2a and the lower rod 2b.

  In the above embodiment, although the male connection wall 15 and the female connection wall 20 are configured to have the upper tongue piece 17 and the lower tongue piece 30, respectively, the upper tongue piece 17 and the lower tongue piece The lower end of the male connection wall 15 and the upper end of the female connection wall 20 may overlap with each other without having 30.

  Next, a second embodiment of the present invention will be described with reference to FIGS. In the present embodiment, the same components as those of the first embodiment are denoted by the same reference numerals, and detailed descriptions thereof will be omitted.

The overflow joint 1A of the first embodiment has been described by way of example in which the crucible 2 and the overflow joint 1A are formed in a substantially cylindrical shape, but the overflow joint 1B of the present embodiment has a substantially elliptical cross-sectional shape. It is formed in the shape applicable to the formed crucible 2.
Specifically, the overflow joint 1B includes an upper connecting portion 3 and a lower connecting portion 4 which are formed in a substantially elliptical shape.

  In the overflow joint 1B, the outer shape is substantially elliptical, and the numbers of the introduction groove 27, the discharge groove 28, the upper tongue piece 17 and the lower tongue piece 30 are different, and all the introduction wall portions 21 are formed in the same shape. Except for the points, it is formed in the same manner as the overflow joint 1A of the first embodiment, and exhibits the same function and effect.

Although the present invention has been described by way of example in which the present invention is applied to the cylindrical or substantially elliptical wedge 2 in the first embodiment and the second embodiment, the present invention may be appropriately applied to crucibles having other cross sectional shapes. It can apply by putting together.
Further, the numbers of the introduction grooves 27, the discharge grooves 28, the number of the upper tongues 17 and the number of the lower tongues 30 can be set appropriately, and the installation positions thereof are also limited to those formed at equal intervals in the annular direction. Instead, it can be set as appropriate according to other places where it is desired to intensively discharge rain water and the like.

Moreover, in the said embodiment, although what demonstrated the rib P extended in the axial line L1 direction in the outer peripheral surface of the crucible 2 was demonstrated to an example, it is applicable also to the crucible 2 which does not have the rib P. FIG.
Further, in the first embodiment, an example in which the convex portion 11 is used as a display portion for positioning the upper connection portion 3 and the lower connection portion 4 in the circumferential direction has been described. The other components can be applied as appropriate.

1A, 1B ... overflow joint, 2 ... 竪 樋, 2a ... upper stem, 2b ... lower link, 3 ... upper connection, 4 ... lower connection, 5 ... peripheral wall, 6 ... cover, H3 ... normal Water flow pipeline, 7 ... introduction flow channel, 8 ... discharge flow channel, 11 ... convex part (display part), 27 ... introduction groove, 28 ... discharge groove, 15 ... male connection wall, 17 ... upper tongue piece , 18 ... notch, 20 ... female connection wall, 30 ... lower tongue

Claims (8)

A cylindrical upper connection portion connected to the upper weir of the weir divided into an upper weir and a lower weir;
And a cylindrical lower connection portion provided below the upper connection portion and connected to the lower rod;
The lower connection portion has a cylindrical peripheral wall portion,
The upper connection portion has a cylindrical cover portion that covers the peripheral wall portion,
The peripheral wall portion and the cover portion introduce the rain water to the outside of the normal flowing water pipe connecting the pipe line of the upper weir and the pipe line of the lower weir, and the rain water downward And a discharge channel for flowing down,
The overflow joint in which the introduction channel and the discharge channel are adjacent on the same circumference. A recess for expanding a space to the outside of the normal flowing water pipe by the unevenness formed in the circumferential direction of the peripheral wall portion, and a recess for extending the space in the vertical direction is formed by the introduction groove of the rainwater and the introduction groove A recess is formed relatively to the flowing water pipe side, and an axially extending drainage groove for the rainwater is formed,
The upper side connection portion includes a male side connection wall portion which is inserted from above to the inside of the peripheral wall portion and covers the upper end portion of the peripheral wall portion from the inside.
The cover portion is disposed on the outside of the peripheral wall portion from above and covers at least a part of the side opening of the discharge groove;
The overflow joint according to claim 1, wherein the introduction groove and the male side connection wall portion form the introduction flow path, and the discharge groove and the cover portion form the discharge flow path.   The overflow joint according to claim 2, wherein a plurality of notches cut upward from the lower end of the male side connection wall are formed in the circumferential direction.   The overflow joint according to claim 3, wherein a tongue piece covering the notch portion protrudes upward in the axial direction above the discharge groove of the peripheral wall portion when the male side connection wall portion is inserted inside.   The overflow according to claim 3 or 4, wherein at least one of the upper connection portion and the lower connection portion is formed with a display portion for positioning the upper connection portion and the lower connection portion in the circumferential direction. Fittings. Overflow fitting according to any one of claims 1 to 5 the total cross-sectional area of the discharge channel is 5 cm ² or more 16cm ² or less. The upper weir and the upper connection part are liquid-tightly bonded by inserting the upper connection part into the duct of the upper weir and the weir at a position of 40 cm or more and 2.4 m or less from the ground. The overflow joint according to any one of claims 1 to 6, provided in.   The overflow joint according to any one of claims 1 to 7, wherein the displacement is 50 L / min or more and 120 L / min or less.

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