JP2011017212A - Rainwater tank branch pipe - Google Patents

Abstract

PROBLEM TO BE SOLVED: To remarkably reduce a load on a worker by easily and efficiently performing a series of installation operations for connecting a pipe body to a rainwater tank at site.SOLUTION: This rainwater tank branch pipe 1 for connecting a rainwater tank and a pipe body includes a flange 3 having a through-hole 2, a tubular part 4 which communicates with the through-hole 2 for connecting the pipe body thereto and which is provided to the flange 3, and a mounting part which has a locking means disengageable from the rainwater tank and which is provided to the flange 3.

Description

  The present invention relates to a rainwater tank branch used when connecting various pipes such as an inflow pipe and an outflow pipe to a rainwater tank in which rainwater is stored.

  Conventionally, when connecting a pipe body such as an inflow pipe to this type of rainwater tank, for example, it is performed as follows. First, a pre-assembled rainwater tank is installed in an underground installation hole, and then a perforation process is performed on a side surface and an upper surface thereof to form an inlet and a water intake. Then, a pipe body will be connected to an inflow port or a water intake (refer patent document 1).

Japanese Patent Laid-Open No. 2004-211316

  However, since the drilling process of the rainwater tank in the field as described above is very troublesome, it has a problem that it takes a considerable work time and increases the burden on the worker. It was.

  Therefore, the present invention has been made in view of the above points, and the object of the present invention is to perform a series of construction work for connecting a tubular body to a rainwater tank easily and efficiently at the site. Thus, the burden on the worker is greatly reduced.

  The rainwater tank branch pipe according to the present invention is a rainwater tank branch pipe connected between the rainwater tank and the pipe body, and is connected to the through hole for connecting the flange portion with the through hole and the pipe body. A cylindrical portion provided on the flange portion, and an attaching portion provided on the flange portion, having a locking means detachably engageable with the rainwater tank.

  In such a rainwater tank branch pipe, after locking the attachment means of the attachment portion to the rainwater tank, if the pipe body is connected to the tubular portion, the rainwater tank and the pipe body are connected via the rainwater tank branch pipe. And can be connected. Therefore, a series of construction work can be performed very simply and efficiently compared with the conventional one in which the hole for attaching the pipe body is processed in the rainwater tank at the site. In addition, since it is not necessary to bring the machine tool used for drilling to the site, the burden on the worker is greatly reduced.

  Examples of the pipe connected to the rainwater tank branch pipe include an inflow pipe, an outflow pipe, and an overflow pipe. Thereby, rainwater or the like from the inflow pipe flows into the rainwater tank via the rainwater tank branch pipe, and rainwater or the like from the rainwater tank flows out to the outflow pipe or the overflow pipe via the rainwater tank branch pipe.

Further, the mounting portion is constituted by a pair of mounting members that are mounted with a predetermined interval in the left and right width direction of the flange portion, and the mounting position of the flange portion to the mounting member can be adjusted up and down. Also good.

  According to this, the attachment height of a tubular body can be flexibly changed via a cylindrical part by adjusting the attachment position of a flange part up and down suitably.

  Further, the locking means may be constituted by a pair of locking pieces that are provided in the mounting portion with a predetermined interval in the vertical direction and locked in a large number of permeation holes formed in the rainwater tank.

  Such an operation of locking the pair of upper and lower locking pieces to the permeation hole of the rainwater tank can be performed very easily, so that there is no burden on the operator. Moreover, the rainwater tank branch pipe can be securely and firmly attached to the rainwater tank by engaging the pair of upper and lower locking pieces with the permeation hole of the rainwater tank in this way. Moreover, since the penetration hole is generally formed in the rainwater tank in advance, it can be effectively used.

  Further, the locking means may be configured by a locking projection instead of the locking piece.

  Even in this case, the same effect as the case of the locking piece can be obtained.

  Further, the center of the through hole and the cylindrical portion may be displaced upward from the center of the flange portion.

  According to this, since the through hole and the cylindrical portion can be arranged on the upper side of the rainwater tank, the capacity of the rainwater tank can be maximized.

  Furthermore, the cylindrical portion can be provided with a receiving structure for connecting a tubular body.

  According to this, it becomes possible to equip a rainwater tank branch pipe with the receptacle structure provided with various functions. For example, by providing a joint or the like as a flexible receiving structure in the cylindrical portion, it is possible to provide an earthquake resistance function that can absorb vibrations and displacements generated in the rainwater tank branch pipe by the action of external force. . In particular, since the rainwater tank branch pipes and pipes are buried in the ground, it is very effective to have such an earthquake resistance function.

  ADVANTAGE OF THE INVENTION According to this invention, it becomes possible to perform a series of construction work which connects a pipe body to a rainwater tank easily and efficiently in the field, and can reduce the burden concerning an operator significantly.

The rainwater tank branch pipe which concerns on one Embodiment of this invention is shown, (a) is a front view, (b) is a side view including a partial cross section. One Embodiment of an attaching part is shown, (a) is a front view, (b) is a rear view, (c) is a longitudinal cross-sectional view. The rainwater tank to which the several pipe body was connected is shown, (a) is a front view, (b) is a side view. Other embodiment of an attachment part is shown, (a) is a front view, (b) is a rear view, (c) is a longitudinal cross-sectional view, (d) is a cross-sectional view. It is a front view including a partial cross section which shows the rainwater tank branch pipe used when connecting a tubular body to the upper surface of a storage material. The attachment member provided with the other latching means is shown, (a) is a front view, (b) is a rear view, (c) is a longitudinal cross-sectional view. (A) And (b) is a side view including a partial cross section which shows the rainwater tank branch pipe provided with the other coupling.

  As shown in FIG. 1, a rainwater tank branch pipe 1 according to this embodiment includes a flat plate flange portion 3 in which a through hole 2 is formed, and a cylinder provided in front of the flange portion 3 so as to communicate with the through hole 2. And a pair of attachment members 5 as attachment portions provided on both sides of the back surface of the flange portion 3 with a predetermined interval in the left and right width direction. The tubular portion 4 is connected to a joint 6 as a receiving structure, and the joint 6 has a different diameter portion 6a.

  The center O of the through hole 2 and the cylindrical portion 4 is displaced by a distance L from the center O ′ of the flange portion 3, and the through hole 2 and the cylindrical portion 4 are arranged on the upper side of the flange portion 3. Has been. However, this configuration is not necessarily required, and the center O of the through-hole 2 and the cylindrical portion 4 may coincide with the center O ′ of the flange portion 3 or be displaced downward. On both sides of the flange portion 3, a plurality of circular holes 10 for fixing the mounting member 5 are formed in the vertical direction.

  As shown in FIG. 2C, the attachment member 5 includes an attachment member main body 20 that is inclined rearward toward the upper side. On the front surface of the mounting member main body 20, a pair of screw rods 22 having male threaded portions 21 on the outer peripheral surface project forwardly with a predetermined interval in the vertical direction. As shown in FIG. 1, each screw rod 22 is inserted through a predetermined circular hole 10 of the flange portion 3, and a nut 23 is fastened to the male screw 21. As a result, the pair of attachment members 5 are fixed to the flange portion 3. Usually, the rainwater tank branch pipe 1 is transported to a construction site in a state of being assembled in this manner, and a construction work is performed. According to this, since the handling of the rainwater tank branch pipe 1 becomes very simple, a series of operations can be performed efficiently.

  In addition, since the plurality of circular holes 10 of the flange portion 3 are formed at intervals in the vertical direction, the mounting position of the flange portion 3 with respect to the mounting member 5 can be adjusted up and down. According to this, it becomes possible to flexibly cope with, for example, a sudden design change at the site, which is extremely useful. However, the circular hole 10 is not necessarily formed, and may be omitted when the attachment member 5 is provided integrally with the flange portion 3. Further, a long hole may be formed in the vertical direction instead of the circular hole 10. According to this, the attachment position of the flange part 3 can be further finely adjusted.

  A pair of locking pieces 24 and 25 are formed on the back side of the mounting member main body 20 with a predetermined distance in the vertical direction. The upper locking piece 24 is bent upward at the tip, and the lower locking piece 25 is bent downward. Each of the locking pieces 24 and 25 is detachably locked to a permeation hole 30 of a storage material 31 described later. Further, as shown in FIGS. 2A and 2C, a reinforcing rib 26 is formed on the front surface side of the mounting member main body 20. The ribs 26 are substantially vertical so that end horizontal ribs 26 a formed substantially horizontally at the upper and lower ends of the mounting member main body 20 and the center of each end horizontal rib 26 a are connected via the screw rods 22. The central vertical rib 26b is formed on the side of each screw rod 22 and the horizontal rib 26c is formed substantially horizontally on the side of each screw rod 22.

  The rainwater tank branch pipe 1 according to the present embodiment is configured as described above. Next, the case where the inflow pipe B is connected to the rainwater tank A using the rainwater tank branch pipe 1 will be described. The rainwater tank A is buried in the ground to store rainwater and infiltrate it into the ground. For example, as shown in FIG. 3, the rainwater tank A is formed by stacking up and down hollow storage materials 31 having a large number of penetration holes 30 on the side surface and the upper surface, and connecting them to the left and right. Moreover, a part of the side surface 32 of the storage material 31 is configured by an inclined surface that is inclined outwardly toward the lower end portion side. The periphery of the rainwater tank A is covered with a water permeable sheet 33 so that earth and sand etc. do not flow into the rainwater tank A.

  First, in consideration of the position where the inflow pipe B should be connected, the lower locking piece in a state where the upper locking piece 24 of the mounting member 5 is locked in the predetermined permeation hole 30 of the storage material 31. 25 is locked to the other penetration hole 30. The rainwater tank branch pipe 1 can be securely and firmly attached to the rainwater tank A by such a one-touch operation. Moreover, since the said penetration hole 30 is previously formed in the rain water tank A, there also exists an advantage that the effective utilization can be aimed at. The inclined mounting member main body 20 abuts against the inclined surface of the storage material 31, and the joint 6 connected to the rainwater tank branch pipe 1 is arranged substantially horizontally. Next, one side surface of the rainwater tank A to which the rainwater tank branch pipe 1 is attached is covered with a water permeable sheet 33. The water permeable sheet 33 is formed with an insertion hole (not shown) through which the rainwater tank branch pipe 1 and the joint 6 are inserted. Then, if the inflow pipe B is inserted and connected to the joint 6, the installation work of the inflow pipe B to the rainwater layer A is completed. As described above, since a series of construction work can be performed very easily and efficiently, the burden on the worker is greatly reduced.

  The outflow pipe C and the overflow pipe D may be connected to the rainwater tank A in the same manner. As shown in FIG. 3, in this embodiment, the outflow pipe C is connected to the lower side of the rainwater tank A, and the overflow pipe D is connected to the upper side.

  As described above, since the center O of the through-hole 2 and the cylindrical portion 4 is displaced by a distance L from the center O ′ of the flange portion 3, both the centers O and O ′ are made to coincide. Compared with the case, it becomes possible to arrange each tubular body such as the overflow pipe D on the upper side of the rainwater tank. As a result, the rainwater tank A can be used to the maximum without waste.

  Note that the attachment member 5 is not necessarily configured as in the above embodiment, and may be configured as shown in FIG. 4, for example. The mounting member 5 is configured such that ribs 26 are formed on the outer periphery of the flat mounting member main body 20, and the ribs 26 d on both sides are inclined rearward toward the upper side. The mounting member main body 20 is formed with a pair of circular holes 28 through which the bolts 27 are inserted at a predetermined interval in the vertical direction, and a detent that engages with the head portion 27a of the bolt 27 at the upper and lower sides. The stopper 28 for use is arranged oppositely. This uses a separate bolt 27 instead of the screw rod 22.

  Moreover, the rainwater tank branch pipe 1 which concerns on this invention can also connect the inflow pipe B etc. to the flat upper surface of the storage material 31. FIG. In this case, for example, as shown in FIG. 5, the attachment member 5 may be formed in a flat plate shape. Other portions are configured in the same manner as in the above embodiment, and the locking pieces 24 and 25 are fixedly attached to the permeation holes 30 formed on the upper surface of the storage material 31.

  Furthermore, the locking means provided on the attachment member 5 is not limited to the locking pieces 24 and 25 as in the above embodiment. For example, as shown in FIG. 6, a pair of locking projections 40 are provided on the mounting member main body 20 with a predetermined interval in the vertical direction as locking means, and this is locked to the permeation hole 30 of the storage material 31. May be attached. In this case, it is preferable to form a convex portion 41 for preventing separation on the outer peripheral edge of the distal end portion of the locking convex portion 40. The locking means in the present invention can be arbitrarily changed according to the configuration of the rainwater tank A to be locked.

  In the above embodiment, the pair of attachment members 5 formed separately from the flange portion 3 are configured as the attachment portions. However, the attachment portions may be formed integrally with the flange portion 3. According to this, the number of parts can be reduced and the assembling work can be simplified.

  Furthermore, in the above embodiment, a separate joint 6 is provided as a receiving structure on the tubular portion 4 of the rainwater tank branch pipe 1, but this is omitted and the tubular body is directly connected to the tubular portion 4. It is also possible to do. That is, the cylindrical part 4 itself may constitute a receiving structure. However, when connecting a tubular body via the joint 6 as a receiving structure, the following joint 6 may be provided in the cylindrical part 4. A joint 6 shown in FIG. 7A includes a first joint 6b having a configuration similar to that of the joint 6 of the above embodiment, and a second joint 6c connected thereto. A concave spherical portion 50 is formed on the inner peripheral surface of the second joint 6c, and a ring 52 having a convex spherical portion 51 that is slidable on a spherical surface on the outer peripheral surface is fitted therein. The tubular body inserted into the ring 52 is connected to the rainwater tank A through the joint 6 so as to be freely rotatable. Further, the joint 6 shown in FIG. 7B includes a first joint 6b similar to the above, a second joint 6c connected thereto, and a third joint 6d made of rubber connected thereto. It has. Since the rubber-made third joint 6 d has flexibility, the pipe body inserted into the third joint 6 d is connected to the rainwater tank A through the joint 6. By providing such a joint 6 in the rainwater tank branch 1, for example, it is possible to provide an earthquake resistance function capable of satisfactorily absorbing vibration, displacement, and the like generated in the rainwater tank branch 1 due to an external force. In particular, since the rainwater tank branch pipe 1 and the pipe body are buried in the ground, it is very effective to provide such a seismic function. Further, the rainwater tank branch pipe 1 may be provided with a joint 6 that can be expanded and contracted in the pipe axis direction.

  Furthermore, the material of the rainwater tank A, the rainwater tank branch pipe 1 and the like of this type is generally vinyl chloride or other synthetic resin, but the present invention is not limited to this.

  In addition, the shape of each part constituting the rainwater tank A and the rainwater tank branch pipe 1 and the specific structure such as a series of construction procedures can be arbitrarily changed within the intended scope of the present invention.

DESCRIPTION OF SYMBOLS 1 Rainwater tank branch pipe 2 Through-hole 3 Flange part 4 Cylindrical part 5 Mounting member 24 Locking piece 25 Locking piece 30 Penetration hole 40 Locking convex part A Rainwater tank

Claims (7)

A rainwater tank branch pipe for connecting a rainwater tank and a pipe body,
A flange portion having a through hole;
A cylindrical portion provided in the flange portion in communication with the through-hole to connect the tubular body;
A rainwater tank branch pipe having a locking means detachably attached to the rainwater tank, and an attachment portion provided on the flange portion.   The said attachment part consists of a pair of attachment members attached with a predetermined space | interval in the width direction on either side of the said flange part, The attachment position of the said flange part to this attachment member can be adjusted up and down. Rainwater tank branch.   The said latching | locking means consists of a pair of latching piece which is provided in the said attaching part with a predetermined space | interval in the up-down direction, and is latched by the penetration hole formed in many in the said rainwater tank. Rainwater tank branch.   The locking means comprises a pair of locking projections that are provided in the mounting portion with a predetermined interval in the vertical direction and locked to a plurality of permeation holes formed in the rainwater tank. The described rainwater tank branch.   The rainwater tank branch pipe according to any one of claims 1 to 4, wherein a center of the through hole and the cylindrical portion is displaced upward from a center of the flange portion.   The said cylindrical part is a rainwater tank branch pipe as described in any one of Claims 1-5 provided with the receptacle structure for connecting a tubular body.   The rainwater tank branch pipe according to claim 6, wherein the pipe structure is connectable so that the receiving structure can follow fluctuations caused by an applied external force.

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