JP2015031122A - Drainage structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a drainage structure excellent in versatility with a simple structure, and capable of preventing water from overflowing to the upper drain passage side such as an eaves gutter.SOLUTION: The drainage structure is provided by interposing a catchment unit 3 between a drain port 11 and a down-pipe 2 formed on a bottom surface 1b of an upper eaves gutter 1. The catchment unit is provided with a catchment part 31 provided on the inflow port side of the down-pipe and a water discharge part 32 provided above the catchment part of becoming the drain port side. The catchment part is also formed in a measure shape of a wider cross section than an inflow port, and the water discharge part is provided with slits 32a, etc. for communicating the inside and outside of the catchment unit.

Description

  The present invention relates to a drainage structure for allowing water in a drainage channel such as eaves provided on a flat roof of a building, a balcony, or a fence to flow down by the fence.

  Rainwater that falls on the roof of the building flows into the eaves provided at the eaves, moves laterally, and flows into the eaves connected to the eaves and is transported to the ground. Here, when the drainage capacity of the dredging is smaller than the drainage capacity of the eaves, if the amount of water that exceeds the drainage capacity of the dredge flows due to heavy rain, the water that cannot be drained overflows to the eaves and the eaves ceiling May be submerged.

  In order to cope with this, a drainage structure that can prevent inundation of the eaves ceiling by overflowing water that cannot be drained by the eaves on the eaves side is known (see Patent Documents 1-3 and the like). .

  On the other hand, Patent Documents 4 and 5 disclose a drainage structure that can prevent the water that could not be drained by the dredging from overflowing to the eaves side by providing an overflow function in the middle of the dredging. Yes.

JP-A-8-246616 Japanese Utility Model Publication No. 64-27329 JP 2005-264539 A JP 9-165800 A JP 2011-89321 A

  However, in the drainage structure of Patent Documents 1-3, since an overflow mechanism must be provided on the eaves ceiling side such as a collar or a side wall, it becomes a special structure and lacks versatility.

  On the other hand, in the case where an overflow mechanism is provided in the middle of the dredger, if the drainage capacity between the place where the overflow mechanism is provided and the eaves bowl is reduced, the water will eventually overflow to the eaves side.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a drainage structure that is simple in structure and excellent in versatility, and that can prevent water from overflowing to the upper drainage channel side of eaves or the like.

  In order to achieve the above object, the drainage structure of the present invention is a drainage structure in which a water collector is interposed between a drain outlet formed on the bottom surface of an upper drainage channel and a gutter, and the water collection The vessel comprises a water collection part provided on the inlet side of the dredger and a water discharge part provided above the water collection part on the drain side, and the water collection part is wider than the inlet The water discharge part is formed with an opening that communicates the inside and outside of the water collector.

  Here, it is preferable that the opening of the water discharge portion is provided at a position spaced below the drain port. The opening may be a slit extending in the vertical direction.

  Furthermore, the structure by which the drain material made to protrude in the said water discharge part may be mounted | worn with the said drain outlet. Moreover, it can also be set as the structure by which the upper part of the said drain outlet is covered with a filter material.

  The drainage channel is an eaves laid on the eaves ceiling, and the water collector is pressed against the lower surface of the eaves ceiling with an upper ring having an upper eaves portion that is hooked on the upper surface of the eaves ceiling And a lower ring that is screwed into the upper ring, and a heel body that has the water collecting portion and the water discharge portion and has an upper end supported by the lower ring. it can.

  The drainage structure of the present invention configured as described above is a water collector having a cross section wider than the inflow port of the dredger, in the water collector interposed between the drain outlet formed on the bottom surface of the drainage channel and the dredger. A water discharge part is provided above the part.

  For this reason, even if it becomes difficult for water to flow into the dredger, first store it in the water collecting part, and when there is more water, drain the water from the opening of the water discharge part so that it does not overflow to the upper drainage channel side. Can do. Thus, if a water collector is interposed, it is excellent in versatility with a simple structure.

  Also, if the opening of the water discharge part is provided at a position spaced below the drain outlet, even if the water level in the water collector rises, it is discharged from the opening before reaching the drainage channel side. The effect of preventing water from overflowing to the roadside can be further enhanced.

  Furthermore, if the opening is a slit extending in the vertical direction, the drainage performance against a rise in water level can be further enhanced. And by attaching the drain material which makes it protrude in a water discharge part to a drain outlet, water can be smoothly flowed down toward a ridge from a drainage channel.

  Further, if the upper part of the drainage port is covered with the filter material, it is possible to prevent dust and fallen leaves from flowing into the tub side and prevent clogging of the water collector and the tub.

  Furthermore, by providing an upper ring and a lower ring for fixing the water collector to the eaves ceiling and supporting the bag main body on the lower ring, it can be easily attached to the eaves ceiling.

It is sectional drawing which showed the structure of the drainage structure of embodiment of this invention. It is a disassembled perspective view for demonstrating the structure of a water collector. It is the side view which showed the structure of the water collector attached to the eaves ceiling.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a cross-sectional view showing a configuration in which a drainage structure of the present embodiment is provided on a flat roof 4 as a roof.

  First, the flat roof 4 will be described. The land roof 4 is a roof formed flat compared to an inclined roof such as a gable roof. Here, the land roof 4 provided in the roof frame 52 spanned on the roof beam 51 of the building unit which comprises a unit building is demonstrated.

  The upper surface of the roof frame 52 is closed by a roof material 53 constituted by a roofing material formed of, for example, a base plate and a hot-dip aluminum-plated steel plate.

  Although a drainage gradient is formed on the upper surface of the roof material 53, since the gradient is gentler than that of the inclined roof, there is a possibility that the upper surface of the roof material 53 may be submerged if the drainage by the drainage structure to be described later stagnate.

  The eaves end of the flat roof 4 is a flange 4 a that protrudes from the outer wall 54, and the end surface is covered with a parapet 42. And the lower surface of this collar part 4a is obstruct | occluded by the eaves ceiling 41. FIG.

  The eaves ceiling 41 extends along the outer wall 54 in the direction orthogonal to the plane of FIG. The eaves wall 1 is laid on the upper surface 41 a of the eaves ceiling 41. Since the eaves bowl 1 is provided with a drainage gradient with respect to the direction orthogonal to the paper surface of FIG. 1, the eaves bowl 1 is in a state of being floated away from the upper surface 41a depending on the position.

  That is, the eaves 1 is hung by the hanging metal fitting 12 attached to the roof frame 52. The suspension fitting 12 is mainly configured by a support bolt 12a whose end or intermediate portion is fixed to the roof frame 52, and a holder 12b attached to the lower end of the support bolt 12a.

  The eaves 1 is formed in an elongated groove shape by a pair of side walls 1a, 1a and a bottom surface 1b closing between the lower edges thereof. And the upper edge of side wall 1a, 1a is hooked on the holder 12b, and the eaves rod 1 is suspended.

  The eaves wall 1 is connected to the wall 2 at the most downstream point. A water collector 3 is interposed between the eaves 2 and the eaves 1. That is, the drainage port 11 is perforated on the bottom surface 1 b at the most downstream point of the eaves rod 1, and the water that has flowed down from the drainage port 11 flows from the inflow port 21 into the dredge 2 through the water collector 3.

  The water collector 3 includes a water collecting portion 31 provided on the inflow port 21 side of the trough 2 and a water discharge portion 32 provided above the water collecting portion 31 on the drain port 11 side. 2 and 3 are diagrams showing the detailed configuration of the water collector 3.

  As shown in FIG. 2, the water collector 3 includes an upper ring 33 that is hooked on the upper surface 41a of the eaves ceiling 41, a lower ring 34 that is screwed into the upper ring 33 from the lower surface 41b side of the eaves ceiling 41, and An eaves body 35 whose upper end is supported by the ring 34 is configured.

  The upper ring 33 is a member in which an upper flange portion 33a is provided on the upper edge of the cylindrical body portion 33b. On the outer peripheral surface of the body portion 33b, a screw groove is provided as a screw portion 33c.

  The trunk portion 33 b is formed to have an outer diameter slightly smaller than the inner diameter of the through hole 41 c drilled in the eaves ceiling 41. And if the trunk | drum 33b is passed through the through-hole 41c from the top, the upper side collar part 33a will be hooked on the upper surface 41a of the periphery of the through-hole 41c. Moreover, the trunk | drum 33b is formed longer than the plate | board thickness of the eaves ceiling 41, and the screw part 33c protrudes below from the lower surface 41b of the eaves ceiling 41. FIG.

  On the other hand, the lower ring 34 has a cylindrical body 34b having an inner diameter slightly larger than the outer diameter of the body 33b of the upper ring 33, and a lower flange 34a provided on the upper edge of the body 34b. doing.

  A thread groove is provided as a threaded part 34c on the inner peripheral surface of the body part 34b. A plurality of arc-shaped receiving portions 34d are provided along the inner periphery at the lower edge of the inner peripheral surface of the body portion 34b. For example, the receiving portions 34d,... Are provided at three locations at equal intervals in the circumferential direction.

  And the trunk | drum 34b of the lower ring 34 is inserted in the trunk | drum 33b of the upper ring 33 protruded below the eaves ceiling 41, and the screw part 34c is screwed in the screw part 33c. As a result, the upper flange 33 a of the upper ring 33 is pressed against the upper surface 41 a of the eaves ceiling 41, and the lower flange 34 a of the lower ring 34 is pressed against the lower surface 41 b of the eaves ceiling 41.

  Thus, the main body 35 to be supported by the lower ring 34 fixed to the eaves ceiling 41 has a water collection part 31 and a water discharge part 32. The water collecting portion 31 is formed in a cylindrical bowl shape, and an insertion port 36 for the bowl 2 is provided on the lower surface. The insertion port 36 is formed in a cylindrical shape having an outer diameter slightly smaller than the inner diameter of the inlet 21 of the tub 2.

  And the water collection part 31 is formed in a cross section wider than the cross section of the insertion port 36 (inflow port 21). In other words, the water collecting section 31 can store a volume of water having a height larger than a cross section wider than the inlet 21.

  On the other hand, the water discharge part 32 has a plurality of thin plate parts 32b extending upward from the upper edge of the water collecting part 31, and a slit 32a serving as an opening between the thin plate parts 32b and 32b.

  For example, the thin plate portions 32b are provided at equal intervals in the circumferential direction. The slit 32a formed between the thin plate portions 32b and 32b is formed in a rectangular shape that is elongated in the vertical direction.

  The width and number of the thin plate portions 32b,... Can be arbitrarily set in consideration of the strength and drainage performance required for the water discharge portion 32. Moreover, it is preferable to set it as the space | interval of the slit 32a of the grade which an insect etc. cannot enter into the inside of the water collector 3. FIG.

  An annular upper edge portion 32c is provided at the upper ends of these thin plate portions 32b,. The upper edge portion 32c is provided with a plurality of arcuate claw portions 32d,... At equal intervals in the circumferential direction.

  The outer diameter of the upper edge portion 32 c of the collar body 35 is formed to be slightly smaller than the inner diameter of the trunk portion 34 b of the lower ring 34. Then, by inserting the upper edge portion 32c into the body portion 34b from below and rotating the upper edge portion 32c, the claw portions 32d,.

  A stopper 34e protrudes from the end of the receiving portion 34d, and the heel body 35 is rotated until the claw portion 32d contacts the stopper 34e. As a result, the bag main body 35 is attached to the lower ring 34.

  FIG. 3 shows a state in which the water collector 3 is attached to the eaves ceiling 41. The inflow port 21 of the tub 2 is inserted into the insertion port 36 protruding downward from the water collector 3. Moreover, the free drain 6 as a drain material is attached to the drain outlet 11 on the eaves wall 1 side.

  The free drain 6 has a protruding portion 61 formed in a cylindrical shape at the lower portion and a lattice portion 62 as a filter material at the upper portion. The lattice portion 62 can arbitrarily set the size of the gap depending on the size of the garbage that is not desired to flow from the eave jar 1 side to the heel 2 side. If you do not want to allow fine dust to flow in, you can also use a reticulated filter material.

  The protrusion 61 is inserted into the water discharge part 32 as shown in FIGS. The length of the protruding portion 61 can be arbitrarily set, and may be long such that the lower end is inserted into the water collecting portion 31.

  If the flow path is formed in most of the water discharge part 32 by such a protrusion 61, when the water flows down, the water is prevented from splashing outside from the slits 32a of the water discharge part 32. Can do.

  Next, the effect | action of the drainage structure of this Embodiment is demonstrated.

  The drainage structure of the present embodiment configured as described above has the flow of the ridge 2 in the water collector 3 interposed between the drainage port 11 formed on the bottom surface 1b of the eaves ridge 1 and the ridge 2. A water collecting portion 31 having a cross section wider than the inlet 21 is provided, and a water discharge portion 32 is provided above the water collecting portion 31.

  In such a drainage structure, in the normal time when the amount of water within the drainage capacity of the eaves 2 flows from the eaves 1, the water flowing down the eaves 1 flows into the free drain 6 from the drain port 11 and is discharged from the free drain 6. The water that has been drained flows directly into the ridge 2.

  On the other hand, when the amount of water flowing down the eaves wall 1 increases due to heavy rain and the drainage capacity of the eaves 2 cannot catch up and water becomes difficult to flow, it is first stored in the water collecting section 31. .

  The larger the volume of the water collecting section 31, the more water that can be temporarily stored. If the amount of water flowing in is within the volume of the water collecting section 31, it will not leak out from the water discharge section 32, and the waste water treatment can be performed in the same manner as normal in appearance.

  When the rainfall further increases and the amount of water flowing through the eaves 1 increases and the water level of the water collecting part 31 reaches the boundary with the water discharging part 32, the water that has flowed from the free drain 6 thereafter becomes the slit of the water discharging part 32. 32a, ... will overflow.

  Thus, the water overflowing from the water discharge part 32 falls outside the tub 2 and is different from the normal drainage treatment in appearance. However, as long as the amount of water within the drainage capacity of the water discharge section 32 flows, water does not overflow to the upper eaves wall 1 side, and the eaves ceiling 41 can be prevented from being flooded.

  And by making such a drainage structure, it becomes unnecessary to provide the drainage 2 of the drainage capacity equivalent to the drainage capacity of the eaves fence 1. That is, conventionally, even when the eaves 1 are provided with the eaves 2 and 2 at both ends, the eaves 2 can be concentrated in one place. As a result, the degree of freedom in designing a building such as a house can be expanded.

  Furthermore, if the drainage points can be concentrated, rainwater storage tanks and the like can be provided so that rainwater can be actively used, and water saving and emergency water can be secured.

  Further, if the water collector 3 is interposed between the eaves 1 and 2, it is not necessary to provide a special drainage structure in the eaves 1, the eaves ceiling 41 or the eaves part 4a. Further, since ordinary members can be used for the eaves 1 and 2 to be connected, the versatility is excellent.

  In particular, an upper ring 33 and a lower ring 34 for fixing the water collector 3 to the eaves ceiling 41 are provided, and the bag body 35 is hooked on the lower ring 34, so that the eaves ceiling 41 can be easily attached. Can do.

  In addition, if the slits 32a of the water discharger 32 are provided at positions spaced below the lower surface 41b of the eaves ceiling 41, even if the water level in the water collector 3 rises, Since it is discharged from the slits 32a before reaching, the eaves ceiling 41 can be prevented from being wetted or flooded.

  Furthermore, if the opening is a slit 32a extending in the vertical direction, drainage is performed sequentially as the water level rises, so that high drainage performance can be maintained.

  And by attaching the free drain 6 which protrudes in the water discharge part 32 in the drain outlet 11, water can be smoothly flowed down from the eaves 1 to the eaves 2.

  Moreover, if the flow path in the water discharge part 32 is formed by the protrusion part 61 of the universal drain 6, it can prevent that the water which flows down splashes outside from the slit 32a.

  Furthermore, if the upper part of the drainage port 11 is covered with the lattice part 62, it can prevent that dust, fallen leaves, etc. flow into the basket 2 side, and can prevent clogging of the water collector 3 and the basket 2. .

  The embodiment of the present invention has been described in detail above with reference to the drawings. However, the specific configuration is not limited to this embodiment, and design changes that do not depart from the gist of the present invention are not limited to this embodiment. Included in the invention.

  For example, although the eaves basket 1 provided on the flat roof 4 has been described as a drainage channel in the embodiment, the present invention is not limited to this, and the drainage provided at the edge of the eaves basket provided on the fence or the veranda floor surface. A groove or the like may be a drainage channel.

  Moreover, although the said embodiment demonstrated the opening which provided the slit 32a extended in the vertical direction in the water discharge part 32, it is not limited to this, It is good also as a slit extended in a some hole and horizontal direction. Furthermore, a grid-like or mesh-like water discharge part can also be provided.

  Moreover, in the said embodiment, although the free drain 6 was mounted | worn with the drain port 11, it is not limited to this, For example, you may just cover the drain port 11 with a net | network material etc.

1 eaves (drainage)
1b Bottom 11 Drain outlet 2 竪 樋 21 Inlet 3 Water collector 31 Water collecting part 32 Water discharging part 32a Slit (opening)
32c Upper edge (upper end)
33 Upper ring 33a Upper ridge 34 Lower ring 34a Lower ridge 35 升 body 4 flat roof 41 eaves ceiling 41a upper surface 41b lower surface 6 free drain (drain material)
61 Projection 62 Grid part (filter material)

Claims (6)

A drainage structure in which a water collector is interposed between a drain outlet formed on the bottom surface of the upper drainage channel and the dredger,
The water collector comprises a water collecting part provided on the inlet side of the dredger and a water discharge part provided above the water collecting part on the drain outlet side,
The drainage structure is characterized in that the water collecting portion is formed in a bowl shape having a wider cross section than the inflow port, and the water discharge portion is provided with an opening for communicating the inside and outside of the water collector.   The drainage structure according to claim 1, wherein an opening of the water discharge portion is provided at a position separated downward from the drain port.   The drainage structure according to claim 1 or 2, wherein the opening is a slit extending in a vertical direction.   The drainage structure according to any one of claims 1 to 3, wherein a drain material that protrudes into the water discharge portion is attached to the drainage port.   The drainage structure according to any one of claims 1 to 4, wherein an upper portion of the drainage port is covered with a filter material. The drainage channel is an eaves laid on the eaves ceiling,
The water collector includes an upper ring having an upper flange hooked on the upper surface of the eave ceiling, a lower ring having a lower flange pressed against the lower surface of the eave ceiling and screwed into the upper ring, and the collector The drainage structure according to any one of claims 1 to 5, further comprising: a main body having a water portion and the water discharge portion, and an upper end supported by the lower ring.