JP2011047180A - Drainage hose connecting joint - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a drainage hose connecting joint, capable of connecting easily an overflow drainage hose extended from a rain water storage tank, to a drainage pipe, capable of holding satisfactorily a connection state of the drainage hose, and capable of draining water smoothly through the drainage hose. <P>SOLUTION: A vertically communicated drainage part 4 is formed in an inside of a cylindrical body 2 opened vertically, a downpipe connection part 5 connectible to one end part of a downpipe is arranged in an upper end part of the drainage part, a drainage pipe connection part 9 connectible to one end part of the drainage pipe is arranged in a lower end part of the drainage part, a drainage hose connection part 3 connectible with one end part of the drainage hose is connected to a side part of the body, a cylindrical inner cylinder is arranged in an inside 13 of the drainage hose connection part, and the one end part of the drainage hose inserted into the inside of the drainage hose connection part is held by the inner cylinder inserted inside thereof, and an outer contour part 17 of the drainage hose connection part positioned opposedly to the inner cylinder. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a drainage hose connection joint for draining overflow water from a rainwater storage tank to a drainage pipe together with rainwater flowing through a gutter.

  Conventionally, rainwater drained from rain gutters has been used for watering plants, garden trees, etc. or for car washing. Such use of rainwater enables water saving and contributes to environmental protection.

  As an apparatus for taking rainwater, for example, a rainwater intake apparatus described in Patent Document 1 is known.

  In the rainwater intake apparatus, a diversion box for diverting rainwater is attached to the middle part of the dredger, and a rainwater storage tank is connected to the diversion box via an intake pipe. A part of the rainwater flowing from the roof through the fence is diverted through the diversion box, and is stored in the rainwater storage tank through the intake pipe. The remaining rainwater passes through the diversion box and is then drained directly into the drain.

  Moreover, in the said rainwater intake device, the overflow pipe is connected to the upper end part of the rainwater storage tank in the one end. The other end of the overflow pipe can be led to the drainage ditch, and when the rainwater storage tank is full, the rainwater overflows from the rainwater storage tank and drains to the drainage ditch via the overflow pipe.

The overflow pipe can also be connected to the trough using a trifurcated pipe, and the overflowing rainwater can be drained into the drain after draining into the trough.
JP-A-8-85982

  However, Patent Document 1 does not disclose a specific structure for connecting the overflow pipe to the trifurcated pipe. If the overflow pipe is not firmly held by the trifurcated pipe, it will easily come off due to the flow rate of the rainwater overflowing from the rainwater storage tank and the momentum of the flow, and water leakage will occur. Such detachment of the overflow pipe is likely to occur due to expansion and contraction of the overflow pipe and the trifurcated pipe accompanying the outside air temperature, wind up, and the like, since the rainwater storage tank is disposed outdoors.

  If the overflow pipe is inserted until it comes into contact with the inner bottom surface of the trifurcated pipe, the drainage channel is blocked, and the overflow water may not be smoothly drained from the overflow pipe to the trifurcated pipe. This also causes water leakage.

  The present invention has been made in view of the circumstances as described above, and an overflow drain hose extending from a rainwater storage tank can be easily connected to a drain pipe, and the drain hose is well connected. It is an object to provide a drainage hose connection joint that can be drained smoothly from the drainage hose.

  The present invention has the following features in order to solve the above problems.

  A first aspect of the present invention is a drainage hose connection joint incorporated in a rainwater utilization system having a rainwater storage tank that receives rainwater from an eaves through a water receiving channel and an overflow channel that drains overflow water from the rainwater storage tank. There is a drainage portion that communicates in the vertical direction inside the cylindrical main body that is opened up and down, and a trout connection portion that can be connected to one end of the trough is disposed at the upper end portion of the drainage portion, A drainage hose connection that can be connected to one end of a drainage pipe at the lower end of the drainage part, and that can be connected to one end of an overflow drainage hose extending from the rainwater storage tank to the side of the main body The drainage hose connection part has a bottomed cylindrical shape opened upward, the inside communicates with the drainage part, and the cylindrical inner cylinder is disposed inside the drainage hose connection part. The inner cylinder is above the bottom of the drain hose connection It extends and can be inserted inside one end of the drainage hose, and an opening for communicating the inside and outside of the inner cylinder is formed on the side surface on the main body side. Side edge ribs projecting outwards are provided, and one end of the drainage hose inserted into the drainage hose connection part is an inner cylinder inserted inside the drainage hose connection located opposite the inner cylinder It is characterized by being held by the outer part of the part.

  According to a second aspect of the present invention, in the first aspect of the invention, the inner cylinder has an arc-shaped cross section, and an imaginary line that connects two spaced apart side edges of the opening appearing in the arc-shaped cross section and the center of the arc. The formed angle is 120 ° or more and 180 ° or less.

  The third invention is characterized in that, in the feature of the first or second invention, the area of the opening is larger than the cross-sectional area of the drainage hose.

  According to a fourth invention, in the feature of any one of the first to third inventions, a rib-like hook stopper projecting inside the main body is disposed at a lower portion of the drainage part, The upper side from the upper end of the stopper is a heel connecting portion, and the upper end of the heel stopper is arranged above the upper end of the side edge rib.

  According to the first aspect of the invention, one end portion of the drainage hose extending from the rainwater storage tank can be connected to the drainage hose connection portion, and the overflow water from the rainwater storage tank can be drained together with the rainwater flowing through the rainwater. it can. One end of the drainage hose inserted into the drainage hose connection part is held by an inner cylinder inserted inside the drainage hose connection part and an outer part of the drainage hose connection part positioned facing the inner cylinder. For this reason, the drain hose connection operation is an easy one-touch operation by simply inserting the drain hose into the drain hose connection portion. Moreover, the drainage hose is difficult to come off and the connection state is maintained well. In addition, since the drain hose is attached to a predetermined position away from the bottom surface of the drain hose connection part by the side edge rib, the overflow water flowing through the drain hose can be smoothly discharged from the opening formed in the side part of the inner cylinder. It can be drained inside the main body.

  According to the second invention, in addition to the effects of the first invention, the drain hose is more reliably held by the outer portion of the inner cylinder and the drain hose connecting portion, the drain hose is more difficult to come off, and the connection state is stable. Maintained.

  According to the third invention, in addition to the effects of the first or second invention, the drainage performance of the overflow water flowing through the drainage hose can be sufficiently secured, and the drainage performance is further improved.

  According to the fourth aspect of the invention, in addition to the effects of any one of the first to third aspects of the invention, the drainage of overflow water in which one end of the ridge connected to the ridge connection section flows through the drainage hose The drainage performance of the overflow water is further improved while sufficiently maintaining the drainage performance of the rainwater flowing down the reeds.

It is the perspective view which showed one Embodiment of the drainage hose connection joint of this invention. It is a longitudinal cross-sectional view of the drainage hose connection joint shown in FIG. It is a top view of the drainage hose connection joint shown in FIG. It is a cross-sectional view of the drainage hose connection joint shown in FIG. It is the rear view which illustrated the rainwater utilization system in which the drainage hose connection coupling shown in Drawing 1-4 was built.

  As described above, FIG. 1 is a perspective view showing an embodiment of the drainage hose connection joint of the present invention. 2, 3 and 4 are a longitudinal sectional view, a plan view and a transverse sectional view of the drainage hose connection joint shown in FIG. 1, respectively.

  The drainage hose connection joint 1 includes a rectangular tube-shaped main body 2 and a cylindrical drainage hose connection portion 3 connected to a side portion of the main body 2. The main body 2 is opened up and down, and a drainage portion 4 communicating in the up-down direction is formed inside.

  At the upper end portion of the drainage portion 4, a trough connection portion 5 is disposed. The hook connection portion 5 can be inserted (inserted) into one end of the hook 31 inside thereof, and is connected to one end of the hook 31 by this insertion. Such a gutter connection part 5 is arranged above the upper end of the gutter stopper 6 in the drainage part 4. The eaves stopper 6 is a rib-like member that is disposed in a lower portion of the drainage portion 4 so as to protrude inside the main body 2 and extends in the vertical direction inside the main body 2. Four heel stoppers 6 are arranged on a diagonal of a substantially quadrangle that is a cross-sectional shape of the rectangular tubular body 2. When the one end of the collar 31 is inserted and connected to the collar connecting portion 5, the collar stopper 6 comes into contact with the lower end, which is one end of the collar 31, so that the collar 31 is in contact with the collar stopper 6. To reach the depth of the drainage part 4 beyond the limit.

  Such scissors connecting portion 5 has an opening dimension that enables connection to scissors having a shape of either a square reed or a round reed. And as a response to the round rod, a round rod plate 8 in which a circular hole 7 having a shape and a size corresponding to the outer shape of the round rod is formed at the upper end of the main body 2 which is the upper end of the rod connection portion 5. It is attached. The round rod plate 8 can be attached and detached freely, and cannot be attached when the rod 31 is a square rod. In this way, the hook connecting portion 5 can be connected to a round hook as well as a square hook, and in the connected state there is no large gap between the hook 31 and dust etc. 4 is sufficiently suppressed.

  A drain pipe connecting portion 9 is disposed at the lower end of the drain portion 4. The drain pipe connecting portion 9 is cylindrical and extends downward from the lower end of the drain portion 4. The drain pipe connecting portion 9 can be inserted inside one end of the drain pipe 32 and is connected to one end of the drain pipe 32. In order to facilitate the insertion into the drain pipe 32, the drain pipe connecting portion 9 is gradually made thinner toward the lower end.

  A skirt portion 10 is disposed on the main body 2 at the upper end portion of the drain pipe connection portion 9. The skirt portion 10 is formed of a disk-shaped flange portion 11 that spreads outside the main body 2 and a peripheral portion 12 that extends downward from the outer periphery of the flange portion 11. The lower end of the peripheral portion 12 is disposed above the lower end of the drain pipe connecting portion 9.

  The drain hose connection portion 3 is opened upward, and one end of an overflow drain hose 33 can be connected to the inside 13 by insertion. A circular hole 14 having an inner diameter corresponding to the outer diameter of the drainage hose 33 is disposed at the upper end of the drainage hose connection part 3, and the interior 13 of the drainage hose connection part 3 communicates with the drainage part 4.

  Further, the drainage hose connection portion 3 has a bottomed cylindrical shape having a bottom surface portion 15. The bottom surface portion 15 is formed in an inclined surface shape that is inclined downward toward the side portion of the main body 2. The inclined bottom surface portion 15 allows the overflow water flowing through the drainage hose 33 to flow smoothly into the drainage portion 4 inside the main body 2.

  In addition, although the drainage hose connection part 3 is extended in the vertical direction in the drainage hose connection joint 1, if the drainage hose connection joint of the present invention can be inserted from above the drainage hose, the drainage hose connection part is It can be inclined and connected to the main body.

  In the drain hose connection portion 3, a cylindrical inner cylinder 16 is disposed in the interior 13. The inner cylinder 16 is erected on the bottom surface portion 15 and extends upward from the bottom surface portion 15 in the interior 13 of the drainage hose connection portion 3. The inner cylinder 16 can be inserted inside one end of the drain hose 33 and has a cross-sectional arc shape. Further, the thickness is gradually reduced toward the upper end, and insertion into one end portion of the drainage hose 33 is facilitated. In the drain hose connection portion 3 corresponding to the inner cylinder 16, the outer portion 17 facing the inner tube 16 is formed in a cross-sectional arc shape, and the arc-shaped cross section of the outer portion 17 is an arc-shaped cross section of the inner tube 16. The drainage hose 33 is disposed on the outer side of the arc-shaped cross section of the inner cylinder 16 so as to be separated from the thickness thereof.

  In addition, the inner cylinder 16 is formed with an opening 18 that communicates the inside and outside of the inner cylinder 16 with the side surface on the main body 2 side. The opening 18 is formed within a height range up to the upper end of the side surface of the inner cylinder 16. Side edge ribs 20 projecting to the outside of the inner cylinder 16 are disposed at lower portions of the two side edges 19 positioned in the width direction of the opening 18. The side edge rib 20 is erected on the lower end of the opening 18, that is, the bottom surface portion 15 of the drainage hose connection portion 3, and extends in the height direction of the opening 18.

  The width dimension of the opening 18 is defined as, for example, the size of an angle θ formed by an imaginary line 21 connecting two spaced side edges 19 of the opening 18 appearing in the arc-shaped cross section of the inner cylinder 16 and the arc center O. The range of 120 ° ≦ θ ≦ 180 ° is preferably exemplified in relation to the connection of the drainage hose 33. About the magnitude | size of the opening part 18, it is preferable that the area of the opening part 18 is larger than the cross-sectional area of the drainage hose 33 in consideration of the drainage property of the overflow water which flows through the drainage hose 33. From the viewpoint of drainage of overflow water, it is preferable that the upper end of the heel stopper 6 is disposed above the upper end of the side edge rib 20 by Δh.

  When the upper edge 22 of the opening 18 is arranged at the same position as the upper end of the inner cylinder 16, the inner cylinder 16 is curved in a substantially arc shape from the upper edge 22 of the opening 18 to the upper end of the side edge 19. The curved surface portion 23 can be formed so that the inner cylinder 16 can be smoothly inserted into the drain hose 33.

  The drainage hose connection joint 1 described above can be manufactured as a molded product such as a synthetic resin including the round plate 8.

  When installing the drainage hose connection joint 1, the drainage pipe 32 is placed near the ground surface, and the drainage pipe 32 embedded in the ground is used as one end, and the drainage pipe connection part 9 is inserted inside the drainage pipe 32 to connect to the drainage pipe 32. Is done. When the ridge 31 is a round ridge, the round heel plate 8 is attached to the upper end of the main body 2, and the lower end, which is one end of the ridge 31, is formed through the circular hole 7 formed in the round heel plate 8. It is inserted into the connection part 5. When the collar 31 is a square collar, the round collar plate 8 is not attached, and the lower end of the collar 31 is inserted into the collar connecting portion 5. The collar 31 is inserted until the lower end contacts the collar stopper 6 and connected to the collar connection portion 5.

  An overflow drain hose 33 such as a bellows pipe extending from the rainwater storage tank is inserted into the interior 13 from above the drain hose connection portion 3. A drainage hose 33 inserted into the interior 13 of the drainage hose connection 3 has an inner cylinder 16 inserted inside a lower end that is one end, and the drainage hose connection located opposite the inner cylinder 16 and the inner cylinder 16. It is held by the outer part 17 of the part 3 and connected to the drain hose connection part 3. The drainage hose 33 is attached to the drainage hose connection joint 1 so as to be sandwiched between the inner cylinder 16 and the outer portion 17. In this connected state, the drainage hose 33 is attached to a predetermined position away from the bottom surface part 15 of the drainage hose connection part 3 by the side edge rib 20.

  The rainwater flowing down through the gutter 31 flows from the gutter connection part 5 into the drainage part 4 of the main body 2 of the drainage hose connection joint 1. Then, it flows down the drainage part 4 and drains into the drainage pipe 32 through the drainage pipe connection part 9. On the other hand, rainwater overflowing from the rainwater storage tank flows into the interior 13 of the drainage hose connection part 3 through the drainage hose 33 and flows out to the drainage part 4 of the main body 2 through the opening 18. Then, it flows down the drainage part 4 and drains into the drainage pipe 32 through the drainage pipe connection part 9.

  As described above, the drainage hose connection joint 1 can drain the rainwater flowing through the trough 31 and the overflow water from the rainwater storage tank toward the drainage pipe 32.

  As shown in FIG. 5, for example, such a drain hose connection joint 1 is incorporated in a rainwater utilization system 34, and one end of a drain hose 33 extending from the upper end of a rainwater storage tank 35 installed outdoors is a drain hose. Connected to the connection unit 3. Overflow water from the rainwater storage tank 35 is drained to a drain pipe 32 communicating with the trough 31 via the drain hose 33 and the drain hose connection joint 1. A rainwater take-out device 36 is connected to the basin 31 in the middle of the drainage channel, and a rainwater storage tank 35 is connected via a hose 38 to a rainwater take-out portion 37 having a built-in filter and the like. A part of the rainwater flowing through the eaves 31 is taken out from the rainwater take-out section 37 of the rainwater take-out device 36 and stored in a certain amount in the rainwater storage tank 35. The stored rainwater can be taken out by opening a cock provided near the bottom of the rainwater storage tank 35, and used for watering, car washing, and the like. As described above, the rainwater utilization system 34 includes a rainwater storage tank 35 that receives rainwater from the eaves 31 via the hose 38 that serves as a water receiving channel, and an overflow that drains overflow water from the rainwater storage tank 35 to the drain pipe 32. It has a drainage hose 33 as a road.

  The rainwater storage tank 35 is composed of a tank body 39 and a gantry 41 having two legs 40 at the bottom. The tank main body 39 is attached to the gantry 41 and is stably supported by the leg portion 40 while suppressing the wobbling of the gantry 41 and is disposed on the ground surface.

  In the drainage hose connection joint 1, as described above, one end portion of the drainage hose 33 extending from the rainwater storage tank 35 can be connected to the drainage hose connection part 3. Can be drained along with flowing rainwater. One end of the drainage hose 33 inserted into the interior 13 of the drainage hose connection part 3 includes an inner cylinder 16 inserted inside thereof, and an outer part 17 of the drainage hose connection part 3 positioned facing the inner cylinder 16. Held by. For this reason, the connection work of the drainage hose 33 is a one-touch operation of simply inserting the drainage hose 33 into the interior 13 of the drainage hose connection part 3 and is easy. Moreover, the drainage hose 33 is hard to come off and the connection state is maintained well. In addition, since the drain hose 33 is attached to a predetermined position away from the bottom surface portion 15 of the drain hose connection portion 3 by the side edge rib 20, overflow water flowing through the drain hose 33 is formed on the side surface portion of the inner cylinder 16. The drained opening 18 can be smoothly drained into the main body 2.

  Further, in the drainage hose connection joint 1, an angle θ formed by an imaginary line 21 connecting two spaced side edges 19 of the opening 18 appearing in the arc-shaped cross section of the inner cylinder 16 and the arc center O is 120 ° or more and 180 ° or less. By doing so, the drain hose 33 can be more reliably held by the inner cylinder 16 and the outer portion 17 of the drain hose connection portion 3. The drain hose 33 is further less likely to come off, and the connection state is stably maintained.

  Furthermore, in the drainage hose connection joint 1, by making the area of the opening 18 larger than the cross-sectional area of the drainage hose 33, the drainage performance of the overflow water flowing through the drainage hose 33 can be sufficiently ensured. Even better.

  Furthermore, in the drainage hose connection joint 1, one end portion of the heel 31 connected to the heel connection portion 5 by disposing the upper end of the heel stopper 6 by Δh above the upper end of the side edge rib 20. However, the drainage of overflow water flowing through the drainage hose 33 is not hindered. The drainage performance of the overflow water is further improved while sufficiently maintaining the drainage performance of the rainwater flowing down the trough 31.

  In addition, this invention is not limited to the said embodiment. Various details are possible for details such as the size and shape of each part.

DESCRIPTION OF SYMBOLS 1 Drain hose connection joint 2 Main body 3 Drain hose connection part 4 Drain part 5 Drain connection part 6 Drain stopper 9 Drain pipe connection part 13 Drain hose connection part inside 15 Bottom face part 16 Inner cylinder 17 Outer part 18 Opening part 19 side Edge 20 Side edge rib 21 Virtual line 31 ３２ 32 Drain pipe 33 Drain hose 34 Rainwater utilization system 35 Rainwater storage tank

Claims (4)

A drainage hose connection joint incorporated in a rainwater utilization system having a rainwater storage tank that receives rainwater from a basin through a water receiving channel and an overflow channel that drains overflow water from the rainwater storage tank,
A drainage part communicating in the vertical direction is formed inside the cylindrical main body opened up and down,
A heel connection portion that can be connected to one end of the heel is disposed at the upper end of the drainage portion,
A drain pipe connecting portion connectable to one end of the drain pipe is disposed at the lower end of the drain section,
A drain hose connection portion to which one end of an overflow drain hose extending from the rainwater storage tank can be connected is connected to the side of the main body, and the drain hose connection portion has a bottomed cylindrical shape opened upward. And the inside communicates with the drainage part,
A cylindrical inner cylinder is disposed inside the drainage hose connection part, and the inner cylinder extends upward from the bottom surface part of the drainage hose connection part, and can be inserted inside one end of the drainage hose, and the main body side An opening for communicating the inside and outside of the inner cylinder is formed on the side surface of the inner cylinder, and a side edge rib projecting to the outside of the inner cylinder is disposed on a lower portion of the side edge of the opening,
One end of a drainage hose inserted into the drainage hose connection part is held by an inner cylinder inserted inside the drainage hose connection part and an outer part of the drainage hose connection part positioned opposite the inner cylinder And drainage hose connection fittings.   The inner cylinder has an arc-shaped cross section, and an angle formed by an imaginary line connecting two spaced side edges of the opening appearing in the arc-shaped cross section and the center of the arc is 120 ° to 180 °. The drainage hose connection joint according to claim 1.   The drainage hose connection joint according to claim 1 or 2, wherein an area of the opening is larger than a cross-sectional area of the drainage hose.   At the lower part of the drainage part, a rib-shaped heel stopper that protrudes inside the main body is arranged, the upper side from the upper end of the heel stopper is the heel connection part, and the upper end of the heel stopper is the side edge The drainage hose connection joint according to any one of claims 1 to 3, wherein the drainage hose connection joint is disposed above an upper end of the rib.

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