JP2007009525A - Confluent pipe coupling and confluent piping structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a confluent pipe coupling and a confluent piping structure using this confluent pipe coupling, without requiring a large piping space, by increasing a degree of freedom of piping, by smoothly merging waste water. <P>SOLUTION: This confluent pipe coupling J1 is constituted by forming an upward connection port 5 in a tip part of this inflow passage part 4 by projecting the inflow passage part 4 obliquely sideways from a side part of a horizontal cylindrical body 3 so as to become 22.5° to 45° to the center line of the horizontal cylindrical body 3 having connection ports 1 and 2 on both ends. The confluent piping structure is constituted by connecting a drain branch pipe to the upward connection port 5 of the inflow passage part 4 via a right-angled elbow joint by connecting upstream side and downstream side drain pipes to the connection ports 1 and 2 of this confluent pipe coupling J1. Confluence is smooth since an angle of the inflow passage part 4 to the horizontal cylindrical body 3 is an acute angle more than a conventional angle. The degree of freedom of piping is increased since the drain branch pipe can be connected at a desired angle when rotating the right-angled elbow joint. Since a lateral width dimension of the confluent pipe coupling is small, it is advantageous to space-saving. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a merging pipe joint that has a large degree of freedom in piping and smoothly joins drainage, and a merging pipe structure that uses this merging pipe joint.

Conventionally, the inflow pipe part is formed at an angle of 45 ° or 90 ° with respect to the main pipe part, a step is provided at the boundary between the bottom of the main pipe part and the bottom of the inflow pipe part, and the combined drainage flows to the inflow pipe part. A merging pipe joint is known in which the bottom of the inflow pipe part is higher than the bottom of the main pipe part so as not to flow backward (Patent Document 1).
Also, the inflow pipe part is formed at an angle of 45 ° or 90 ° with respect to the main pipe part, and a step is provided in the middle of the bottom of the main pipe part so that the combined drainage does not flow backward to the upstream side of the main pipe part. A merging pipe joint is also known in which the bottom on the upstream side of the main pipe part is higher than the bottom of the part (Patent Document 2).

However, as described above, the joining pipe joint in which the inflow pipe part is formed at an angle of 45 ° or 90 ° with respect to the main pipe part is difficult to smoothly join the drainage flowing from the inflow pipe part. Without the provision of this, it was difficult to prevent the backflow to the inflow pipe section and the backflow to the upstream side of the main pipe section. Even if a step is provided, when a large amount of drainage flows from the inflow pipe portion, the water level rises and becomes blocked at the merge portion, causing a problem of causing the sealing of the trap communicating with the main pipe to break. Moreover, the angle of the drainage branch pipe connected to the connection port at the tip of the inflow pipe portion is limited to 45 ° or 90 ° with respect to the main pipe portion unless an elbow joint is interposed, and even when an elbow joint is interposed. The angle of the elbow joint can only be changed in several steps within the range of 0 ° to 180 ° with respect to the main pipe, and the drainage branch pipe cannot be connected at an arbitrary angle of 0 ° to 360 °. There was a problem of poor piping flexibility. In addition, a confluence pipe joint in which the inflow pipe section is formed at an angle of 45 ° or 90 ° with respect to the main pipe section has a large lateral width, so that a large piping space is required in combination with poor piping freedom. Therefore, there is a problem that it is difficult to reduce the piping space.
Japanese Utility Model Publication No. 60-79080 JP 11-193560 A

The present invention has been made to solve the above problems, and a first solution is to provide a merging pipe joint in which drainage smoothly merges, the degree of freedom of piping is large, and a large piping space is not required. .
The second solution is to provide a merged pipe structure that is excellent in piping workability and that is less likely to cause trouble such as a trap seal breakage by using this merged pipe joint.

  In order to solve the first problem, the merging pipe joint according to the present invention flows in so as to have an angle of 22.5 ° or more and less than 45 ° with respect to the center line of the horizontal cylindrical body having connection ports at both ends. The passage portion is provided so as to project obliquely from the side portion of the horizontal cylindrical body, and an upward connection port is formed at the distal end portion of the inflow passage portion.

  And in order to solve a 2nd subject, the confluence | merging piping structure which concerns on this invention arrange | positions said confluence pipe joint, and connects the drainage pipe of an upstream side and a downstream side to the connection port of the both ends of the horizontal cylinder body, respectively. In addition, the drainage branch pipe is connected to the upward connection port at the front end of the inflow passage section through a right angle elbow joint so as to have a desired angle with respect to the drainage pipe.

In the merging pipe joint according to the present invention, the inflow passage portion is preferably provided so as to project at an angle of 25.5 ° to 30 ° with respect to the center line of the horizontal cylinder, and the upward connection port It is preferable that the upper end of is in a position higher than the horizontal cylinder. And, the inflow passage portion is composed of a passage main body portion that is integrally projected from the side portion of the horizontal cylindrical body, and a passage lid portion that is attached to the open portion of the upper end portion of the passage main body portion, It is preferable that an upward connection port is formed at the tip of the passage lid.
Moreover, in the junction piping structure of this invention, it is preferable that a drainage branch pipe is a pipe | tube which has flexibility.

  In the merging pipe joint according to the present invention, the inflow passage portion protrudes obliquely from the side portion of the horizontal cylindrical body so as to have an angle of 22.5 ° or more and less than 45 ° with respect to the center line of the horizontal cylindrical body. Since the drainage merges at a sharper angle than the conventional junction pipe joint, the junction becomes smooth, and it is difficult for the junction level to rise and block, so the connected drain pipe and drain branch pipe It is possible to prevent the sealing of the trap communicating with the water from being destroyed. In addition, since an upward connection port is formed at the tip of the inflow passage portion, if a drainage branch pipe is connected to the upward connection port via a right angle elbow joint, the drainage branch is rotated by rotating the elbow joint. It is possible to connect the pipe to the horizontal cylinder (in other words, the drain pipe connected to the connection ports at both ends of the horizontal cylinder) at any angle, and in particular, the upper end of the upward connection port is the horizontal cylinder. Since the drainage branch pipe can be connected to any direction of 360 ° by rotating the right angle elbow joint 360 °, the degree of freedom of piping is greatly improved. And the joint pipe joint which protruded so that it may become an angle of 22.5 degrees-30 degrees in addition to the inflow passage part becoming very smooth, in addition, since the width dimension of a joint pipe joint becomes still smaller, Combined with the large degree of freedom of piping, it is possible to further reduce the piping space. It goes without saying that such an effect can be obtained in the same manner in the above-described merging pipe structure using the merging pipe joint of the present invention.

  Further, the inflow passage portion is composed of a passage main body portion that is integrally protruded from the side portion of the horizontal cylindrical body, and a passage lid portion that is attached to the opening portion of the upper end portion of the passage main body portion, The junction pipe joint in which the upward connection port is formed at the distal end of the passage lid portion is manufactured because the horizontal cylinder body integrally projecting the passage main body portion and the passage lid portion can be separately injection molded. There is an advantage that becomes easier.

  In addition, the confluent piping structure in which the drainage branch pipe having flexibility is connected to the upward connection port of the inflow passage portion via the right angle elbow joint is easy to bend because the drainage branch pipe is easily bent. There is an advantage that the performance is further improved.

  Hereinafter, specific embodiments of the present invention will be described in detail with reference to the drawings.

  1 is a perspective view of a joint pipe joint according to an embodiment of the present invention, FIG. 2 is an exploded perspective view of the joint pipe joint, FIG. 3 is a plan view of the joint pipe joint, and FIG. 4 is a bottom view of the joint pipe joint. 5 is a front view of the joint pipe joint, FIG. 6 is a rear view of the joint pipe joint, FIG. 7 is a right side view of the joint pipe joint, and FIG. 8 is a cross-sectional view of the joint pipe joint (FIG. 1). It is sectional drawing along the AA line.

  This junction pipe joint J1 has an inflow passage portion 4 protruding obliquely from the side of the horizontal cylinder 3 provided with connection ports 1 and 2 at both ends, and an upward connection port at the tip of the inflow passage portion 4 5 is a pipe joint made of synthetic resin formed with 5. The connection ports 1 and 2 at both ends of the horizontal cylindrical body 3 are used to insert and connect the upstream and downstream drainage pipes. In this embodiment, a VU pipe having a nominal diameter of 75 mm (hereinafter referred to as a drainage pipe for underfloor piping) , VU75) is a socket type connection port (receiving port) that can be plugged in and connected. In addition, the upward connection port 5 of the inflow passage portion 4 connects a drainage branch pipe through a right angle elbow joint. In this embodiment, a VU pipe having a nominal diameter of 50 mm (used as a drainage branch pipe of an underfloor pipe) ( Hereinafter, it is a connection port (insertion) to be inserted into a right angle elbow joint for connection).

  As shown in FIG. 2, the inflow passage portion 4 of the merging pipe joint J <b> 1 includes a passage main body portion 41 projecting obliquely from the side portion of the horizontal cylindrical body 3 and having an open upper end, and the passage main body portion 41. The upper end of the passage cover 42 is attached to the tip of the passage lid 42, and the upward connection port 5 is integrally formed with the connection port 5. The upper end of the connection port 5 is higher than the horizontal cylinder 3 so that the right angle elbow joint to be connected can rotate 360 ° without hitting the horizontal cylinder 3.

  More specifically, the passage main body 41 communicates a bottomed vertical tubular passage portion (having a cylinder diameter similar to that of the VU 50) with an open upper end at the tip of an elongated box-shaped passage portion with an open upper end. The bottom portion of the vertical cylindrical passage portion is bent into a substantially hemispherical shape and continues to the substantially semicylindrical bottom portion of the box-shaped passage portion. The box-shaped passage portion has a flow gradient at the bottom so that no solid matter or the like remains, and communicates with the horizontal cylinder 3 through a large opening 6 as shown in FIG. The passage lid portion 42 is integrally formed with the upward connection port 5 at the tip of the rectangular plate portion covering the upper end open portion of the box-shaped passage portion of the passage main body portion 41, and the rectangular plate portion is Along with the upper end of the box-shaped passage portion, an upward connection port 5 is overlapped with the upper end of the vertical tubular passage portion and is water-tightly bonded with an adhesive.

  It is difficult to manufacture a merging pipe joint by injection molding because of the die-cutting of the merging pipe joint in which the inflow passage part 4 is not divided into the passage main body part 41 and the passage lid part 42. The junction pipe joint J1 in which the passage portion 4 is divided into the passage main body portion 41 and the passage lid portion 42 is formed by separately injection-molding the horizontal cylindrical body 3 projecting from the passage main body portion 41 and the passage lid portion 42, By attaching the lid part 42 to the open upper end part of the passage body part 41, there is an advantage that it can be easily manufactured. Further, as described above, when the bottom part of the vertical cylindrical passage part of the passage main body 41 is connected to the substantially semi-cylindrical bottom part having a substantially hemispherical shape and a flow gradient of the box-like passage part. The drainage that has flowed into the vertical cylindrical passage portion from the connection port 5 has the advantage that it smoothly changes direction and flows through the box-shaped passage portion and smoothly joins the horizontal cylindrical body 3.

  The angle θ (see FIG. 3) of the inflow passage portion 4 with respect to the center line CL of the horizontal cylinder 3 is 22.5 ° or more, 45 so that drainage can smoothly merge from the inflow passage portion 4 to the horizontal cylinder 3. It is necessary to set it to less than °, and in this embodiment, it is set to 30 °. If the angle θ is 45 ° or more, it becomes difficult to smoothly join as in the case of the conventional junction pipe joint, and the overall width of the junction pipe joint J1 becomes wide, which is disadvantageous in reducing the piping space. Become. On the other hand, if the angle θ is less than 22.5 °, the width dimension of the box-shaped passage portion of the inflow passage portion 4 becomes too small, so that the height dimension of the box-shaped passage portion is substantially equal to the cylinder diameter of the horizontal cylinder 3. Even if it is the same, when the cross-sectional area of the box-shaped passage portion becomes smaller than the opening area of the upward connection port 5 and the VU 50 is connected as a drainage branch pipe to the upward connection port 5 of the inflow passage portion 4 through a right angle elbow joint. There is a risk that the inflow passage portion 4 is blocked by the drainage. In addition, when the angle θ is less than 22.5 °, an attempt to secure the minimum width of the box-shaped passage portion of the inflow passage portion 4 has a disadvantage that the overall length of the junction pipe joint J1 increases. Produce.

  A preferable range of the angle θ is 22.5 ° to 30 °. When the angle θ is set within this range, the merging becomes extremely smooth and the overall width of the merging pipe joint J1 is further reduced. This is also advantageous in terms of reducing. In particular, when the angle θ is set to 30 ° as in the present embodiment, in addition to the above advantages, the width dimension of the box-shaped passage portion of the inflow passage portion 4 is not so small as shown in FIG. As shown in FIG. 4, even if the height dimension of the inflow passage portion 4 is slightly smaller than the cylindrical diameter of the horizontal cylinder 3 and a flow gradient is applied to the bottom of the inflow passage portion 4, the cross-sectional area of the box-shaped passage portion is upwardly connected. Since it becomes larger than the opening area of the mouth 5 and the maximum inflow amount exceeding the flow rate of the drainage branch pipe of the VU 50 can be secured, there is an advantage that blockage of the inflow passage portion 4 can be prevented.

  Since the merging pipe joint of the present invention is smoothly joined, it is not necessary to make the bottom of the inflow passage portion 4 higher than the bottom of the horizontal cylindrical body 3 in order to prevent backflow, but the merging pipe joint J1 of this embodiment does not need to be raised. Thus, if the bottom of the inflow passage portion 4 is made higher than the bottom of the horizontal cylinder 3 and has a flow gradient, the waste water flows backward to the inflow passage portion 4 and solids or the like flow into the bottom of the inflow passage portion 4. There is no worry about remaining.

  FIG. 9 is a partially broken side view showing an embodiment of the merged pipe structure of the present invention using the above-described merged pipe joint J1, and FIG. 10 is a plan view of the merged pipe structure.

  In this merging pipe structure, the merging pipe joint J1 is arranged under the floor of the house, and the VU 75 is inserted into the connection ports 1 and 2 at both ends of the horizontal cylinder 3 as the drainage pipes 7a and 7b on the upstream side and the downstream side. It is connected. A synthetic resin corrugated pipe having the same diameter as that of the VU 50 as the drainage branch pipe 8 is connected to the upward connection port 5 at the tip of the inflow passage portion 4 of the junction pipe joint J1 with a right angle elbow joint 9 for the VU 50. The other end of the corrugated pipe 8 is connected to the short pipe 11 passing through the floor 10 from below through a right angle elbow joint 9 from below.

  The right angle elbow joints 9, 9 are provided with receiving ports 9 a, 9 a at both ends. The receiving ports 9 a, 9 a of one right angle elbow joint 9 are connected to the upward connecting port 5 (inlet port) of the junction pipe joint J 1. ) And one end of the corrugated tube 8 are inserted. One end of the corrugated tube 8 is secured by a retaining ring 9b, and a waterproof packing (not shown) is provided between the one end of the corrugated tube 8 and the receiving port 9a to ensure water tightness. Has been. The other end of the corrugated tube 8 and the lower end of the short tube 11 are inserted into the receiving ports 9a, 9a of the other right angle elbow joint 9, and the other end of the corrugated tube 8 is the same as described above. While being prevented by the retaining ring 9b, watertightness is ensured by waterproof packing.

  Of course, the VU 50 may be used as the drainage branch pipe 8, but when the corrugated pipe having flexibility is used, the corrugated pipe 8 is bent in a bow shape as shown by a virtual line in FIG. There is an advantage that the short pipe 11 connected to the pipe can be inserted into and removed from the vertical hole of the floor 10, and this is preferable because the piping workability is improved. A drain branch pipe from an indoor toilet, bathroom, or other water equipment is connected to the upper end of the short pipe 11.

  In the merging pipe structure using the merging pipe joint J1 of the present invention, the inflow passage portion 4 of the merging pipe joint J1 has an angle of 22.5 ° or more and less than 45 ° with respect to the center line CL of the horizontal cylinder 3. Thus, the drainage branch pipe 8 (corrugated corrugated pipe 8) is formed by projecting the inflow passage section 4 obliquely from the side of the horizontal cylindrical body 3 so that the drainage joins at a sharper angle than the conventional junction pipe joint. The drainage that flows into the inflow passage 4 from the pipe) smoothly merges into the horizontal cylindrical body 3, and almost no water level rise or clogging occurs at the junction, so the sealing of the trap communicating with the drainage pipe or drainage branch pipe is destroyed. Can be prevented. Moreover, since the upward connection port 5 is formed at the distal end of the inflow passage portion 4 of the junction pipe joint J1 and the upper end thereof is made higher than the horizontal cylinder 3, even if a large amount of drainage flows through the drain pipe, , The right angle elbow joint 9 inserted into the upward connection port 5 is rotated 360 °, whereby the drainage branch tube 8 is rotated to 360 ° as shown in FIG. ° Connection in any direction is possible, and the degree of piping freedom is greatly improved. In particular, as in this embodiment, when the inflow passage portion 4 of the merging pipe joint J1 is at an angle of 30 ° with respect to the center line CL of the horizontal cylindrical body 3, the merging becomes extremely smooth, Since the horizontal dimension of the junction pipe joint J1 is reduced, it is possible to further reduce the piping space in combination with a large degree of freedom of piping, and as described above, a sufficient maximum of the inflow passage portion 4 is possible. Since the inflow amount can be secured, there is no fear that the inflow passage portion 4 is blocked by the drainage.

  FIG. 11 is a plan view of a merging pipe joint according to another embodiment of the present invention, and FIG. 12 is a partially broken right side view of the merging pipe joint.

  This junction pipe joint J2 forms a flange 43 around the upper end of the passage body 41 of the inflow passage 4 and also forms an overlapping edge 44 overlapping the flange 43 on the periphery of the passage lid 42. A waterproof packing 45 is fitted into a packing fitting groove formed on the opposite surface of the flange portion 43 and the overlapping edge 44, and the passage lid portion 42 is attached to the passage main body portion 41 with a stopper 46 so as to be detachable and watertight. It is fixed. And the flow gradient is given to the bottom part of the inflow channel | path part 4, and the waste_water | drain which flowed into the inflow channel | path part 4 from the drainage branch pipe flows easily into the horizontal cylinder 3 so that a solid substance etc. do not remain.

  In this embodiment, bolts and nuts are used as the stoppers 46. However, any stopper may be used, for example, a passage cover using a clamper that sandwiches the flange portion 43 and the overlapping edge 44 from above and below. The portion 42 may be fixedly attached to the passage main body portion 41 in a detachable manner. Since the other structure of this junction pipe joint J2 is the same as that of the junction pipe joint J1 mentioned above, in FIG. 11, FIG. 12, the same code | symbol is attached | subjected to a corresponding member and description is abbreviate | omitted.

  Such a merging pipe joint J2 is similar to the merging pipe joint J1 described above, in which the merging is performed smoothly, the degree of freedom of piping is high, and the advantage of being advantageous for reducing the piping space is obtained. By removing the passage cover portion 42, an effect that the inside of the junction pipe joint J2 can be easily checked is also obtained.

It is a perspective view of the merge pipe joint which concerns on one Embodiment of this invention. It is a disassembled perspective view of the same merge pipe joint. It is a top view of the same merge pipe joint. It is a bottom view of the same merge pipe joint. It is a front view of the same merge pipe joint. It is a rear view of the joint pipe joint. It is a right view of the same merge pipe joint. It is sectional drawing (sectional drawing along the AA line of FIG. 1) of the same merge pipe joint. It is a partially broken side view of the junction piping structure of the present invention using the junction pipe joint. It is a top view of the same joint piping structure. It is a top view of the merge pipe joint which concerns on other embodiment of this invention. It is a partially broken right view of the same merge pipe joint.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Connection port 2 Connection port 3 Horizontal cylinder 4 Inflow passage part 41 Passage main-body part 42 Passage cover part 5 Upward connection port 7a Upstream drain pipe 7b Downstream drain pipe 8 Drain branch pipe 9 Right angle elbow joint J1, J2 Joint pipe fitting

Claims (6)

  The inflow passage portion protrudes obliquely from the side of the horizontal cylinder so as to be at an angle of 22.5 ° or more and less than 45 ° with respect to the center line of the horizontal cylinder having connection ports at both ends, A junction pipe joint characterized in that an upward connection port is formed at the tip of the inflow passage.   The merging pipe joint according to claim 1, wherein the inflow passage portion is provided so as to project at an angle of 22.5 ° to 30 ° with respect to the center line of the horizontal cylindrical body.   The merging pipe joint according to claim 1 or 2, wherein the upper end of the upward connection port is located at a position higher than the horizontal cylindrical body.   The inflow passage portion is composed of a passage body portion that is integrally projected from the side portion of the horizontal cylindrical body and that has an open upper end, and a passage lid portion that is attached to the open portion at the upper end of the passage body portion. The junction pipe joint according to any one of claims 1 to 3, wherein an upward connection port is formed at a tip portion of the lid portion.   The merging pipe joint according to any one of claims 1 to 4 is arranged, and the upstream and downstream drain pipes are respectively connected to the connection ports at both ends of the horizontal cylindrical body, and the upward end of the inflow passage section is directed upward. A merging piping structure, wherein a drainage branch pipe is connected to a connection port through a right angle elbow joint so as to have a desired angle with respect to the drainage pipe.   6. The junction piping structure according to claim 5, wherein the drainage branch pipe is a flexible pipe.

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