JP2015014144A - Joint, and water drain basin with the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a joint for a different diameter connection structure, in which manufacture thereof is simple and the working concerning connection can be simplified, and to provide a water drain basin with the same.SOLUTION: A water drain basin 10 has a basin body 11, a main pipe socket 13 with a main drain pipe MD connected thereto, and a branch pipe socket 16 with a branch drain pipe SD connected thereto. Also, the water drain basin is used for a different diameter connection structure in which the branch drain pipe SD has a diameter smaller than that of the main drain pipe MD. A joint 12 has a connection cylinder 17 inserted and attached inside the branch pipe socket 16, and an elbow part 18 with the branch drain pipe SD connected to one end thereof. A fitting part 23 is formed in the inner circumference of the connection cylinder 17, a fitting part 26 is formed in the another end part of the elbow part 18, and the fitting part 26 is fitted and inserted to the fitting part 23. Thereby, the connection cylinder 17 is connected with the elbow part 18, and the elbow part 18 is configured turnably to the connection cylinder 17 by bringing the fitting part 23 into a freely slidable state with the fitting part 26 to each other.

Description

  The present invention relates to a joint for connecting a drainage branch pipe extending from the inside of a building to a drainage mass for joining a drainage main pipe laid outside the building, and a drainage mass provided with the joint, and more particularly to the same drainage mass The present invention relates to a joint for use in a different diameter connection structure in which the diameter of a drainage branch pipe connected to the pipe is different from the diameter of a drainage main pipe, and a drainage mass provided with the joint.

Conventionally, in buildings such as houses, drainage mass is used for laying drainage facilities.
Usually, the drainage mass has a mass body provided with a receiving port. Then, by connecting a plurality of drainage masses with pipes, such as connecting a receiving port of one drainage mass and a receiving port of another drainage mass with a connecting pipe, the drainage main pipe is connected to the building outside the building. It is laid along the foundation of the.
Further, the drainage mass is provided with a branch pipe branched from the mass body. The branch pipe serves as a branch pipe receiving opening whose tip is a branch pipe connecting portion. The drainage branch pipe extending from the inside of the building to the outside through the foundation of the building is connected to the branch pipe receiving port through a joint such as an elbow or a pipe, so that the drainage branch pipe is connected to the drainage mass. Are joined to the drainage main pipe.
The conventional drainage mass has a configuration in which a branch pipe receiving port for connecting the drainage branch pipe is fixed. In such a configuration, the situation of each installation location and the connection angle of each drainage branch pipe It is necessary to prepare each type of drainage mass so that it can meet the requirements, and use them separately. Also, in piping work, it is necessary to prepare various types of joints and use them properly so that they can respond to the laying situation of each drainage main pipe and each drainage branch pipe and the direction of the branch pipe receptacle. The use of such various types of drainage masses, the use of various types of joints, and the like lead to complications and complications related to the construction of drainage facilities.
Therefore, as shown in Patent Documents 1 to 5, drainage aimed at simplification of work related to laying of drainage facilities by making it possible to change the direction of branch pipe receptacles for connecting drainage branch pipes. Mass is provided.

Japanese Utility Model Publication No. 6-18791 JP-A-6-129001 JP-A-7-83377 Japanese Patent Laid-Open No. 10-266323 Japanese Patent Laid-Open No. 10-30770

However, the drainage mass having the above-described conventional configuration is provided with a rotation mechanism or the like in the branch pipe connection portion so that the direction of the branch pipe connection portion can be changed. The whole is molded almost integrally. For this reason, there exists a tendency for the metal mold | die for shape | molding this drainage mass to become complicated.
Furthermore, as described above, a large number of drainage masses must be prepared so as to be able to respond to the situation of each installation location and the connection angle of each drainage branch pipe. It has become.
Furthermore, in the case of a different diameter connection structure in which the diameter of the drainage branch pipe connected to the same drainage mass and the diameter of the drainage main pipe are different, the different diameter connection according to the diameter of the drainage branch pipe is connected to the branch pipe connection portion. Joints and the like must be connected, and such connection work tends to be complicated and complicated, and a problem arises of securing a space for laying in a narrow area.
The present invention has been made paying attention to such problems existing in the prior art. An object of the present invention is to provide a joint for a different diameter connection structure and a drainage mass provided with the same, which are simple to manufacture and can simplify work related to connection.

As a means for solving the above-mentioned conventional problems, the joint invention according to claim 1 is a drainage mass provided to join a drainage main pipe laid outside a building with a drainage branch pipe extending from the inside of the building. On the other hand, in the joint for connecting the drainage branch pipe, the drainage mass includes a mass body, a main pipe port to which the drainage main pipe is connected, and a branch pipe port to which the drainage branch pipe is connected. And the drainage branch pipe is used for a different diameter connection structure having a smaller diameter than the drainage main pipe, and the connection cylinder inserted into the branch pipe receptacle, An elbow portion connected to one end of the drainage branch pipe, forming a fitting portion on the inner periphery of the connecting cylinder, and forming a fitting portion on the other end of the elbow portion, the fitting portion By connecting the fitting portion to the connecting tube body and the elbow portion, the fitting portion With slidable fitting join the club another, and gist that constitutes the elbow portion so as to be rotatable with respect to the connecting cylinder.
According to a second aspect of the present invention, in the joint invention according to the first aspect, the connecting cylinder includes an insertion portion that is inserted into the branch pipe receiving port, The gist is that a rising portion is provided around the periphery, and the fitting portion is formed in the rising portion.
The gist of the invention described in claim 3 is the joint invention according to claim 2, wherein the insertion portion and the rising portion are formed by integral molding.
The invention according to claim 4 is the gist of the invention of the joint according to claim 2 or claim 3, in which a lightening portion is provided between the insertion portion and the rising portion. To do.
According to a fifth aspect of the present invention, in the joint invention according to any one of the second to fourth aspects, the length of the insertion portion in the tube axis direction of the connecting cylinder is the branch. The gist is that it is set to be substantially the same or shorter than the depth of the tube receiving port.
According to a sixth aspect of the present invention, in the joint invention according to any one of the first to fifth aspects of the present invention, the branch pipe receiving port is formed at the tip of a branch cylinder that branches off from the mass body. The gist is that the pipe axis of the branch cylinder is orthogonal to the pipe axis of the drain main pipe.
The gist of the invention of the drainage mass according to claim 7 is that the joint according to any one of claims 1 to 6 is provided.

[Action]
The joint of the present invention is configured by pivotally connecting a connecting cylinder inserted into a branch pipe opening provided in a mass main body of a drainage mass and an elbow part connecting the drainage branch pipe. Is. For this reason, the position of the elbow portion can be suitably changed by rotating the elbow portion with respect to the connection cylinder so that the position corresponds to the drainage branch pipe to be connected. It is possible to simplify the work related to the connection of the branch pipes.
Furthermore, since the above-mentioned joint can be molded separately from the mold used for the mass body of the drainage mass and can be molded separately from the mass body, it is used as the joint for many types of mass bodies. Parts can be reused. In addition, in the connection pipe body having a different diameter connection structure, the diameter of the drainage branch pipe is made to correspond to a different diameter, and the fitting part for rotating the elbow part is provided inside the connection pipe body. It is provided around the circumference. Therefore, it is not necessary to select the drainage mass so that the drainage branch pipe can be connected, the drainage branch pipe connection is not inferior to the conventional one, and the number of parts is further reduced. The production can be simplified, and in particular, the increase in the production cost of the drainage mass can be suppressed.
Further, in the joint, the connection tube body includes an insertion portion that is inserted into the branch pipe receptacle, and a rising portion that is provided on an inner periphery of the insertion portion, and the fitting portion is provided in the rising portion. By forming the portion, it is possible to deal with many types of mass bodies only by changing the design of the insertion portion.
Moreover, the said joint can be easily shape | molded by forming the said insertion part and the said standup | rising part of the said connection cylinder by integral molding.
Moreover, the said joint can hold down manufacturing cost by reducing the usage-amount of material, aiming at weight reduction by providing a lightening part between the said insertion part and the said standing part.
In the joint, the length of the insertion portion in the tube axis direction of the connection cylinder is set to be substantially the same as or shorter than the depth of the branch pipe receptacle, thereby reducing the installation space. be able to.
According to the drainage mass of the present invention, a rotating structure of the elbow part connecting the drainage branch pipe and a different diameter connection structure are provided by using the joint having the above-mentioned configuration while molding using an existing mold. Can be easily provided, the manufacturing is simple, and the work related to the connection can be simplified.

〔effect〕
In the present invention, although it is for a different diameter connection structure, the manufacturing is simple and the connection work can be simplified.

The top view which shows the coupling and drainage mass of embodiment. (A), (b) is a top view which shows a mass main body. (A) which shows a joint is sectional drawing of a decomposition | disassembly state, (b) is sectional drawing of an assembly state.

One embodiment which materializes the drainage mass of the present invention is described based on a drawing.
As shown in FIG. 1, the drainage mass 10 is used to join a drainage branch pipe SD laid through the foundation F from the inside to an outdoor drainage main pipe MD laid along the foundation F of the building. It is what you use. The drainage mass 10 includes a mass body 11 constituting the drainage main pipe MD and a joint 12 attached to connect the drainage branch pipe SD. Further, regarding the drainage main pipe MD and the drainage branch pipe SD, the drainage branch pipe SD has a smaller diameter than the drainage main pipe MD.

A schematic configuration of the mass body 11 will be described. The mass body 11 is formed in a cylindrical shape whose both ends are opened in the direction in which the tube axis At of the drainage main pipe MD extends. Both end portions of the mass body 11 are expanded in diameter compared to the intermediate portion, and the inside of the opening of the expanded both end portions is a main pipe receiving port 13. A connecting pipe that connects the drainage masses 10 is fitted and connected to the main pipe receiving port 13.
The mass body 11 is provided with a mass receiving port 14 in addition to the main pipe receiving port 13 so that the inside of the mass main body 11 can be cleaned and checked through the mass receiving port 14. It has become.
A branch pipe receiving port 16 is formed in the mass body 11 to connect the drainage branch pipe SD. The branch pipe receiving port 16 is formed in the mass body 11 so as to be in an opening direction orthogonal to a direction in which the pipe axis At of the drainage main pipe MD extends. Normally, a plurality of types of mass bodies 11 having different shapes and configurations of the main pipe receiving port 13 and the branch pipe receiving port 16 are prepared, and are used properly in consideration of the installation position of the drainage mass 10 and the state of drainage.

2A and 2B illustrate mass bodies 11 having different configurations.
In the first mass body 11A shown in FIG. 2A, the mass body 11A is formed in a straight cylindrical shape, and both end openings of the mass body 11A are used as main pipe receiving ports 13, respectively. Therefore, the pipe axis At of the drainage main pipe MD extends so as to pass through the center of the mass body 11. A cylindrical branch cylinder 15 is formed from the mass body 11 so as to protrude from the peripheral wall of the mass body 11. The distal end opening of the branch cylinder 15 is enlarged in diameter and serves as a branch pipe receiving port 16. The branch pipe receiving port 16 has an opening direction orthogonal to the direction in which the pipe axis At of the drainage main pipe MD extends.
In the second mass body 11B shown in FIG. 2B, the mass body 11B has a substantially L-shaped curved tube, and an opening on one end side (right end side in the drawing) of the mass body 11B is a main pipe receiving port 13. It is said. Therefore, the pipe axis At of the drainage main pipe MD extends so as to pass through the center of the main pipe receiving port 13. Further, the opening on the other end side (the left end side in the drawing) of the mass body 11B is a branch pipe receiving port 16, which is an opening direction orthogonal to the direction in which the pipe axis At of the drainage main pipe MD extends.
2 (a) and 2 (b), the main pipe receiving port 13 and the branch pipe receiving port 16 are illustrated to have the same diameter, but the present invention is not limited to this illustrated form. The main pipe receiving port 13 and the branch pipe receiving port 16 may have different diameters.
Further, the branch pipe receiving port 16 is not necessarily formed by providing the branch cylinder 15 as illustrated in the mass main body 11A, but a hole is formed in the pipe wall of the mass main body using a tool such as a horuseau. However, the hole may be used as the branch pipe receiving port 16. In addition, regarding the formation of the branch cylinder 15, the branch cylinder 15 may be formed integrally with the mass body 11 </ b> A by using a mold when forming the mass body, or the mass body using a tool such as a horuseau. The branch pipe 15 is formed separately from the mass body 11A by forming a branch pipe receptacle 16 in the pipe wall of 11A and joining a pipe material such as a branch pipe so as to cover the branch pipe receptacle 16. Also good.

The configuration of the joint 12 will be described. The joint 12 includes a connecting cylinder 17 that is inserted into the branch pipe receiving port 16 and an elbow portion 18 provided at the tip of the connecting cylinder 17. The elbow 18 is connected to the opening 19A on one end side (tip side) thereof directly or indirectly through an elbow or the like (see FIG. 1).
As shown in FIGS. 3A and 3B, in the joint 12, the connecting cylinder 17 and the elbow 18 enable the elbow 18 to rotate with respect to the connecting cylinder 17. It is configured accordingly.
That is, the connecting cylinder 17 includes a cylindrical insertion portion 21 so that the insertion portion 21 is inserted into the inner periphery of the branch pipe receiving port 16 of the drainage mass 10. It is configured. The insertion portion 21 is integrally formed with a cylindrical rising portion 22, and is inserted from the base end of the rising portion 22 in the direction of expanding the rising portion 22. A base end portion 19 </ b> B of the elbow portion 18 is fitted inside the rising portion 22. A plurality of fitting portions 23 each having a claw shape are provided at regular intervals on the inner peripheral surface at the tip of the rising portion 22.
In the connecting cylinder 17, since the elbow portion 18 is fitted into the rising portion 22, the tube axis of the rising portion 22 coincides with the tube axis of the elbow portion 18. Therefore, it is possible to set the positional relationship between the tube axis of the branch pipe receiving port 16 and the tube axis of the elbow portion 18 by the insertion portion 21 inserted from the rising portion 22. In the present embodiment, the insertion portion 21 has an evenly enlarged diameter around the tube axis of the rising portion 22 so that the tube axis of the branch tube receiving port 16 and the tube axis of the elbow portion 18 coincide with each other. Has been pushed out in the direction to do.
If the tube axis of the branch pipe receiving port 16 and the tube axis of the elbow part 18 coincide with each other, the present invention is not limited to the continuous cylindrical annular insertion part 21, but an intermittent cylinder. Alternatively, a plate-like insertion portion may be used, or a plate having an arc cross section may be provided at predetermined intervals to form the insertion portion.
Alternatively, unlike the insertion portion 21 of the present embodiment, the tube axis of the branch pipe receiving port 16 and the tube axis of the elbow part 18 do not necessarily coincide with each other. An insertion portion may be provided so as to decenter the tube axis of the elbow portion 18.
That is, in the connecting cylinder 17, for example, the diameter or shape of the branch pipe receptacle is different only by changing the design of the insertion part 21, or the tube axis of the elbow part is different from the pipe axis of the branch pipe receptacle It can correspond to many kinds of mass bodies that are eccentric.

A lightening portion 24 is provided between the insertion portion 21 and the rising portion 22 to reduce the weight of the connecting cylinder 17 and the amount of material used. Further, a contact body 25 is projected on the inner peripheral surface at the base end of the rising portion 22, and the end surface of the base end portion 19 </ b> B of the elbow section 18 contacts the corresponding contact body 25, thereby The amount of insertion of the portion 18 into the connecting cylinder 17 is restricted.
Further, the inner peripheral surface on the proximal end side of the contact body 25 is a tapered portion 25A having a diameter that decreases toward the distal end side, that is, the elbow portion 18 side, and the drainage branch pipe SD to the drainage main pipe MD. The drainage that flows to the mass body 11 can smoothly flow from the elbow portion 18 to the mass body 11 by the tapered portion 25A.

On the outer peripheral surface of the base end portion 19B of the elbow portion 18, a plurality of convex fitting portions 26 are provided at regular intervals. When the proximal end portion 19B of the elbow portion 18 is fitted inside the rising portion 22, the fitting portion 23 and the fitting portion 26 are fitted to each other, whereby the connecting cylinder 17 And the elbow portion 18 are connected to each other. A concave groove 27 is formed on the inner peripheral surface at the tip of the rising portion 22 adjacent to the fitting portion 23. The fitting portion 26 is accommodated in the concave groove 27 so that the fitting portion 26 and the fitting portion 23 are slidable with respect to each other. It can be turned.
A seal ring 28 for preventing water leakage is fitted on the outer peripheral surface of the base end portion 19B of the elbow portion 18. In addition, a convex body 29 is provided on the tip surface of the rising portion 22, and a stopper 30 is provided on the outer peripheral surface of the elbow portion 18 at a position corresponding to the convex body 29. When the stopper 30 comes into contact with 29, the elbow 18 is prevented from rotating more than necessary with respect to the connecting cylinder 17. The convex bodies 29 are provided at two positions on the tip surface of the rising portion 22 at intervals of 180 degrees. In the state shown in FIG. 1, the elbow section 18 is 90 degrees in the left-right direction around the rotation axis Ar. By regulating so as not to rotate beyond the range, the backflow of drainage is suppressed.
Further, the rotation direction of the elbow portion 18 with respect to the connection cylinder 17 is set so that the rotation axis Ar of the elbow portion 18 is perpendicular to the tube axis At of the drainage main pipe MD (FIG. 1). reference). This is because, when the rotation axis Ar of the elbow part 18 is not in a direction perpendicular to the pipe axis At of the drainage main pipe MD but in a crossing direction, the tip connecting the drainage branch SD with the elbow part 18 This is because the opening 19A is rotated in an oblique direction with respect to the drainage branch SD projecting from the foundation F, and the connecting operation of the drainage branch SD is complicated.

In the present embodiment, the connection cylinder 17, the length L ₁ of the insertion portion 21 is set substantially equal to the length L ₂ of the depth of the branch pipe socket 16 in the tube axis direction ( L ₁ = L ₂ ). This is because when the joint 12 is attached to the mass body 11, the entire insertion portion 21 is accommodated in the branch pipe receiving port 16, thereby saving the installation space for the drainage mass 10. Because. However, if all of the insertion portion 21 is accommodated in the branch pipe receiving port 16 and the drainage mass 10 can be saved, the length L ₁ of the insertion portion 21 is set to the length L ₁ . It may be shorter than the length L ₂ of the depth of the branch pipe receiving port 16 (L ₁ <L ₂ ).
Furthermore, in the connecting cylinder 17, the length L ₃ of the rising portion 22 is set shorter than the length L ₁ of the insertion portion 21 in the tube axis direction (L ₁ > L ₃ ). This is because the connecting cylindrical body 17 can be saved in space by accommodating all the rising portions 22 in the insertion portion 21.
The length L ₁ of the insertion portion 21 is set to be equal to or less than the length L ₂ of the depth of the branch pipe receiving port 16, and the length L ₃ of the rising portion 22 is set to the length L _{1 of the} insertion portion 21. By setting it to less than (L ₃ <L ₁ ≦ L ₂ ), it is possible to accommodate all of the connecting cylinders 17 inside the branch pipe receiving port 16, and further reduce the space of the drainage mass 10. Can be achieved.
The elbow portion 18 includes various types such as those in which the opening direction of the base end portion 19B and the opening 19A at the tip end is 90 degrees, 60 degrees, 45 degrees, 30 degrees, etc. Can be used. Among them, the elbow part 18 in which the opening direction of the base end part 19B and the opening 19A at the tip end makes 90 degrees, even if the elbow part 18 is rotated, the opening 19A at the tip end of the elbow part 18 is Since the direction of the elbow 18 is always perpendicular to the rotation axis Ar, the drain branch SD can be easily connected.

In the drainage facility, a plurality of mass bodies 11 are arranged at predetermined intervals along the foundation F, and the connection cylinders 17 of the joints 12 are fitted into the branch pipe receiving ports 16 of the mass bodies 11 so that the connection is made. The drainage mass 10 is configured by bonding the insertion portion 21 of the cylindrical body 17 to the branch pipe receiving port 16.
In the drainage mass 10, since the elbow portion 18 of the joint 12 is configured to be rotatable with respect to the connection cylinder 17, for example, as shown in FIG. 1, the pipe shaft of the drainage main pipe MD Even when the end of the drainage branch SD is displaced from the elbow 18 in the direction in which At extends, by rotating the elbow 18 so as to face the end of the drainage branch SD, The end of the drainage branch SD and the elbow 18 can be connected at the shortest distance.

  In the present invention, in the joint for different diameter connection structure and the drainage mass provided with the same, the manufacture is simple and the connection work can be simplified. There is.

DESCRIPTION OF SYMBOLS 10 Drainage mass 11 Mass main body 12 Joint 13 Main pipe receptacle 16 Branch pipe receptacle 17 Connection cylinder 18 Elbow part 21 Insertion part 22 Standing part 23 Fitting part 24 Filling part 26 Insertion part At Pipe axis Ar Rotation axis F Basic MD Drainage main pipe SD Drainage branch pipe

Claims (6)

In the joint for connecting the drainage branch pipe to the drainage mass provided to join the drainage branch pipe extending from the inside of the building to the drainage main pipe laid outside the building,
The drainage mass has a mass body, a main pipe receiving port to which the drainage main pipe is connected, and a branch pipe receiving port to which the drainage branch pipe is connected. Used for a different diameter connection structure that is smaller in diameter than the main pipe,
A connecting cylinder inserted into the branch pipe receiving port, and an elbow part to which the drainage branch pipe is connected to one end,
By forming a fitting part on the inner periphery of the connection cylinder, forming an insertion part at the other end of the elbow part, and inserting the insertion part into the fitting part, the connection cylinder and the elbow As well as connecting
A joint characterized in that the elbow part is configured to be rotatable with respect to the connecting cylinder by making the fitting part and the fitting part slidable with respect to each other. The connecting cylinder includes an insertion portion that is inserted into the branch pipe receptacle, and a rising portion is provided on an inner periphery of the insertion portion, and the fitting portion is formed at the rising portion. The joint according to claim 1, wherein the joint is characterized in that The joint according to claim 2, wherein the insertion portion and the rising portion are formed by integral molding. The joint according to claim 2 or 3, wherein a lightening portion is provided between the insertion portion and the rising portion. The length of the said insertion part in the pipe-axis direction of the said connection cylinder is set substantially the same as the length of the depth of the said branch pipe receptacle, or short, The Claim 4 of Claim 4 characterized by the above-mentioned. The joint according to any one of the above. A drainage mass comprising the joint according to any one of claims 2 to 5.

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