JP6062808B2 - Drainage construction method, drainage mass and drainage equipment - Google Patents

Description

The present invention relates to a drainage facility construction method for joining drainage branch pipes extending from the inside of a building to a drainage main pipe laid outside the building , a drainage mass, and a drainage system configured using the drainage mass.

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, in the drainage mass having the above-described conventional configuration, the direction of the branch pipe receiving port connecting the drainage branch pipes can be changed, but the length from the branch pipe receiving port of the drainage mass to the elbow in a plan view is different. Since it differs for each drainage mass, in some cases, the elbow and drainage mass must be further moved to the building side, so the pipeline cannot be configured, and it is still difficult to work on the drainage installation. Yes. In other words, the drainage mass of the above-described conventional configuration measures the dimensions from the branch pipe receiving port that is a branch pipe connecting portion to the end of the drainage branch pipe for each drainage mass in the operation of connecting the drainage branch pipe to the branch pipe receiving port. Complicated operations such as cutting of pipe materials, selection of elbows and adhesion, etc. must be carried out one by one for each drainage mass in accordance with the dimensions.
Further, the drainage mass of 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. 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.
The present invention has been made paying attention to such problems existing in the prior art. The purpose is to change the position where the end of the drainage branch pipe is connected so as to correspond to the position of the end of the drainage branch pipe. It is in providing the drainage mass which can aim at simplification, and the drainage facility using the same.

As a means for solving the above-mentioned conventional problems, the invention of the method for enforcing a drainage facility according to claim 1 uses a drainage mass to an outdoor drainage main pipe laid substantially along the foundation of a building from the inside. A drainage mass for joining drainage branch pipes laid through the foundation of the building, and a mass body provided with a receiving port in the opening direction substantially the same as the direction in which the pipe axis of the drainage main pipe extends, A branch pipe connecting portion to which the drainage branch pipe is connected, and the mass body is formed such that a connection port is in an opening direction orthogonal to or intersecting with a direction in which a pipe axis of the drainage main pipe extends. The branch pipe connection portion has a connection cylinder connected to the connection port, and an elbow portion provided at the tip of the connection cylinder to connect the drainage branch pipe , Length from the pipe axis of the drain main pipe to the opening center of the tip of the elbow Has a length adjustment section for adjusting, arranged in predetermined intervals along a plurality of said catch basin to the foundation, by connecting a connecting pipe between each mass body, the drainage main pipe is the The length from the pipe axis of the drainage main pipe in the plan view to the opening center of the elbow part in the plan view is all due to the laying step of laying so as to extend substantially parallel to the foundation and the length adjusting part of the connection tube. And an adjustment step for setting the drainage mass equally .
Invention of Claim 2 makes it a summary to include the drainage mass from which the shape of a mass main body differs among the plurality of drainage mass in invention of the enforcement method of the drainage facility of Claim 1.
The invention of the drainage mass according to claim 3 is the invention of the drainage mass used in the construction method of the drainage facility according to claim 1 or 2, wherein the connection tube is provided along the opening direction of the connection port. A straight pipe portion extending in a straight line is used, and the straight pipe portion is used as the length adjusting section for adjusting the length from the pipe axis of the drainage main pipe to the center of the opening of the elbow part in a plan view. Is the gist.
According to a fourth aspect of the present invention, in the invention of the drainage mass main body according to the third aspect , in the branch pipe connecting portion, the elbow is provided between the connecting tube and the elbow portion with respect to the connecting tube. A rotation mechanism for rotating the elbow portion is set, and the rotation direction of the elbow portion by the rotation mechanism is set so that the rotation axis of the elbow portion is orthogonal to the tube axis of the drain main pipe. It is a summary.
The invention of the drainage facility according to claim 5 is a drainage facility configured by using a plurality of drainage masses according to claim 3 , wherein a plurality of drainage mass bodies are connected by a connecting pipe, and the drainage main pipe The drainage main pipe in a plan view is configured by connecting a drainage branch pipe to the branch pipe connection part of each drainage mass main body and using a length adjusting unit provided in the branch pipe connection part. A plurality of drainage masses so that the distance from the foundation of the building to the mass body in a plan view is substantially equal to each other. The gist is that each cell is arranged.
The invention of the drainage facility according to claim 6 is a drainage facility configured by using a plurality of drainage masses according to claim 4 , wherein a plurality of drainage masses are connected by a connecting pipe, and the drainage main pipe is connected. The drainage main pipe in a plan view is configured by using a length adjusting unit which is configured by connecting drainage branch pipes to the branch pipe connection parts of each drainage mass while being configured. The plurality of drainage masses are arranged so that the distance from the shaft to the center of the opening of the elbow part is substantially equal between the plurality of drainage masses, and the distance from the foundation of the building to the mass body in plan view is substantially equal. The gist is that the elbow portion of the branch pipe connection portion is aligned with the end of the drainage branch pipe by using a rotation mechanism that is arranged respectively and further provided in the branch pipe connection portion.
The invention of the drainage facility according to claim 7 is the drainage branch pipe laid from the indoor to the outdoor drainage main pipe laid substantially along the foundation of the building by using the drainage mass from the inside through the foundation of the building. The drainage mass is a mass pipe provided with a receiving port having an opening direction substantially the same as the direction in which the pipe axis of the drainage main pipe extends, and a branch pipe to which the drainage branch pipe is connected And a connecting port is formed in the mass main body so as to be in an opening direction orthogonal to or intersecting with a direction in which a pipe axis of the drainage main pipe extends. It has a connection tube connected to the connection port, and an elbow portion provided at the tip of the connection tube to connect the drainage branch pipe, and the connection tube has an opening direction along the connection port. A straight pipe portion extending in a straight line is provided, and the straight pipe portion is connected to the drainage in a plan view. It has a length adjustment part that adjusts the length from the tube axis of the pipe to the opening center of the elbow part tip, and a plurality of the drainage masses are arranged at predetermined intervals along the foundation, And by connecting between each mass body with a connecting pipe, the drainage main pipe is laid so as to extend substantially in parallel along the foundation, and in the plan view by the length adjusting portion of the connecting cylinder The gist is that the length from the pipe axis of the drainage main pipe to the center of the opening at the tip of the elbow is set equal for all drainage masses.
The gist of the invention according to claim 8 is that the drainage facility according to claim 7 includes drainage masses having a different shape of the mass body among the plurality of drainage masses.

[Action]
In the drainage mass of the present invention, the branch pipe connection part for connecting the drainage branch pipe connects the cylindrical connection cylinder connected to the connection port formed in the mass body, and the connection cylinder and the end of the drainage branch pipe. It has an elbow part. The connecting tube of the branch pipe connecting portion is provided with a length adjusting portion including a straight pipe portion extending linearly along the opening direction of the connecting port formed in the mass body. The length from the pipe axis of the drainage main pipe to the opening center of the tip of the elbow part serving as the connection position of the end of the drainage branch pipe, that is, the position of the elbow part is changed by cutting the end of the part be able to. Then, the position of the elbow portion is changed almost freely, and the position corresponding to the end of the drainage branch pipe is set to simplify the work of connecting the end of the drainage branch pipe to the elbow portion. it can.
Further, since the length adjusting part is composed of a straight pipe part of the connecting cylinder, the inner diameter changes even when the length adjusting part is cut, or the elbow part with respect to the pipe axis of the drain main pipe is changed. It is possible to suppress a change in the insertion direction in a plan view, and it is possible to suppress a decrease in drainage performance due to the drainage mass.
In addition, since the branch pipe connecting portion uses a mold different from the mold used in the mass body, and can be formed separately from the mass body, the mass body has many types. However, the parts used as the branch pipe connecting portion can be shared by many types of mass bodies. Therefore, it is not necessary to select a drainage mass so that the drainage branch pipe can be connected, and the drainage branch pipe connection is not inferior to that of the previous one. Can be prevented.
In addition, the elbow part is provided with a turning mechanism for turning the elbow part with respect to the connecting tube at the branch pipe connecting part, and the elbow part is orthogonal to the pipe axis of the drainage main pipe. The vertical position of the elbow part that becomes the connection position of the drainage branch pipe can be changed by setting the rotation direction of the drainage branch pipe, and the position of the elbow part is set to a position corresponding to the end of the drainage branch pipe Can be suitably changed.
The drainage system of the present invention uses a length adjusting unit provided in the branch pipe connection part, and the length from the pipe axis of the drainage main pipe to the center of the opening of the elbow part in a plan view is substantially equal among a plurality of drainage masses. In addition, by arranging each of the plurality of drainage masses so that the distance from the foundation of the building to the mass body in plan view is substantially equal, from all the drainage masses to the center of the elbow opening The distances of the elbows are unified, and the positions of the elbow portions in a plan view can be aligned in a substantially single line. As a result, it is not necessary to carry out complicated work such as surveying for each drainage mass one by one, and it is sufficient to prepare pipes with the length corresponding to the length from the foundation to the elbow part. Such work is simplified.
Further, by using a rotation mechanism provided in the branch pipe connection portion, the elbow portion of the branch pipe connection portion and the end of the drainage branch pipe are aligned, so that the drain branch pipe can be easily connected to the elbow portion. Become a thing.

〔effect〕
In the present invention, although the manufacturing is simple, the position where the end of the drainage branch pipe is connected can be changed according to the position of the end of the drainage branch pipe. Can be achieved.

The top view which shows the drainage mass of embodiment. (A), (b), (c) is a top view which shows a mass main body. (A), (b) is a top view which shows a branch pipe connection part. The sectional side view which shows a rotation mechanism. The top view which shows the drainage equipment of embodiment.

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 branch pipe connection portion 12 provided on the mass body 11 to connect the drainage branch pipe SD.

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 insides of the openings at the expanded both end portions are the receiving ports 13. A connecting pipe that connects the drainage masses 10 is inserted and connected to the receiving port 13.
The mass body 11 is provided with a mass receiving port 14 in addition to the 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 connection port 16 is formed in the mass body 11 to connect the branch pipe connection portion 12. The connection port 16 is formed in the mass body 11 so as to be in an opening direction orthogonal to or intersecting with a direction in which the tube axis At of the drainage main pipe MD extends. Normally, a plurality of types of mass bodies 11 having different opening directions of the connection ports 16 are prepared, and are used properly in consideration of the installation position of the drainage mass 10 and the state of drainage.

The mass main body 11 from which the opening direction of the connection port 16 differs is illustrated to Fig.2 (a)-(c).
In the first mass body 11A shown in FIG. 2A, the mass body 11A has a straight cylindrical shape, and both end openings of the mass body 11A serve as receiving openings 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 extend at an angle of 45 degrees with the direction in which the pipe axis At of the drain main pipe MD extends. The branch cylinder 15 has a distal end opening that is enlarged in diameter and serves as a connection port 16.
In the second mass body 11B shown in FIG. 2B, the mass body 11B has a straight cylindrical shape, and both end openings of the mass body 11B serve as 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 11B so as to extend perpendicular to the direction in which the pipe axis At of the drainage main pipe MD extends. The branch cylinder 15 has a distal end opening that is enlarged in diameter and serves as a connection port 16.
The third mass body 11C shown in FIG. 2 (c) has a substantially L-shaped curved main body 11C, and an opening on one end side (right end side in the figure) of the mass body 11C as a receiving port 13. Yes. Therefore, the pipe axis At of the drainage main pipe MD extends so as to pass through the center of the receiving port 13. Further, the opening on the other end side (the left end side in the figure) of the mass body 11C is internally provided with an adapter 16a for reducing the inner diameter to serve as a connection port 16, and is connected to the tube axis At of the drainage main pipe MD. The opening direction is orthogonal to the extending direction.
2 (a) to 2 (c), the connection port 16 is illustrated with a smaller diameter than the receiving port 13, but the present invention is not limited to this illustrated form and is connected to the receiving port 13. The mouths 16 may have the same diameter or may have different diameters. Further, regarding the drainage main pipe MD and the drainage branch pipe SD, in this embodiment, the drainage main pipe MD is illustrated as having a large diameter and the drainage branch pipe SD is illustrated as having a small diameter, but the present invention is not limited to this exemplary form. The drain main pipe MD and the drain branch pipe SD may have the same diameter. Accordingly, in the third mass body 11C shown in FIG. 2C, when the drain main pipe MD and the drain branch SD have the same diameter, the adapter 16a is omitted, and the opening on the other end side of the mass body 11C is provided. The connection port 16 is used as it is.
In addition, the connection port 16 is not necessarily formed by providing the branch cylinder 15 as illustrated in the mass bodies 11A and 11B, but a hole such as a horuseau is formed in the tube wall of the mass body. The hole may be formed as the connection port 16. As for the formation of the branch cylinder 15, the branch cylinder may be formed integrally with the mass body using a mold when the mass body is formed, or it is formed on the tube wall of the mass body using a tool such as a horuseau. The branch tube may be formed separately from the mass body by forming a hole and joining a pipe material such as a branch pipe so as to cover the hole.

A schematic configuration of the branch pipe connecting portion 12 will be described. The branch pipe connection portion 12 includes a cylindrical connection tube 17 connected to the connection port 16 and an elbow portion 18 provided at the tip of the connection tube 17. The elbow 18 is connected to the drain branch SD directly or indirectly via an elbow or the like. The branch pipe connecting portion 12 constitutes the drainage mass 10 together with the mass body 11 by inserting the base end of the connection port 16 into the connection port 16 of the mass body 11 and bonding them.
For the elbow portion 18, various types such as those in which the opening direction of the proximal end opening and the distal end opening makes 90 degrees, those making 60 degrees, those making 45 degrees, those making 30 degrees, etc. can be used. . In particular, the elbow portion 18 in which the opening direction of the proximal end opening and the distal end opening is 90 degrees is rotated even if the elbow portion 18 is rotated by the rotation mechanism 20 described later, the distal end opening of the elbow portion 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 branch pipe connecting portion 12, from the mass body 11 to the elbow portion 18 by adjusting the connecting tube 17 to a predetermined length by cutting the base end portion of the connecting tube 17 or the like. , More specifically, the length from the tube axis At of the drainage main pipe MD to the opening center 18a at the tip of the elbow 18 can be changed and adjusted to a desired position. (See FIG. 1). That is, according to the branch pipe connection part 12, the elbow part 18 can be arranged at a desired position according to the position of the end of the drainage branch pipe SD extending from the foundation F.
In general, a plurality of types of connection cylinders 17 are prepared according to the opening direction of the connection port 16 formed in the mass body 11, and the connection cylinder 17 is selectively used according to the mass body 11 to be used.

3 (a) and 3 (b) illustrate a branch pipe connecting portion 12 with a different connecting cylinder 17. FIG.
The branch pipe connecting portion 12 shown in FIG. 3A corresponds to the first mass body 11A, and the opening direction of the connection port 16 is 45 degrees with the direction in which the pipe axis At of the drainage main pipe MD extends. In response to the angle, the connecting cylinder 17 has, on the base end side, a length adjusting portion 17A composed of a straight pipe portion extending linearly at an angle of 45 degrees with the direction in which the pipe axis At of the drainage main pipe MD extends. And a bending angle of 135 degrees with respect to the length adjusting portion 17A so that the length adjusting portion 17A makes an angle of 45 degrees with respect to the tube axis At at the tip. It is comprised by the connection part 17B which consists of a curved pipe part. And in the said connecting cylinder 17 which consists of the length adjustment part 17A of a base end, and the connection part 17B of a front-end | tip, the elbow part 18 attached to the front-end | tip is orthogonal to the direction where the pipe axis At of the said drain main pipe MD is extended. It is configured to always be sent out in the direction.
The position adjustment of the elbow part 18 is performed by cutting the base end part of the length adjustment part 17A of the connection cylinder 17 or the like. That is, since the length adjusting portion 17A has a straight tube shape, there is no need to perform complicated oblique cutting for cutting.
The branch pipe connecting portion 12 shown in FIG. 3B corresponds to the second and third mass bodies 11B and 11C, and the connecting cylinder 17 is constituted only by a straight pipe portion. Therefore, also in the connection cylinder 17 constituted only by the straight pipe portion, the elbow part 18 attached to the tip of the connection cylinder 17 is always extended in a direction orthogonal to the direction in which the pipe axis At of the drainage main pipe MD extends. It is configured.

As shown in FIG. 4, in the branch pipe connecting portion 12, a rotating mechanism 20 that rotates the elbow portion 18 with respect to the connecting tube 17 is provided between the connecting tube 17 and the elbow portion 18. Is provided. In the rotating mechanism 20, a fitting concave groove 21 is formed in the inner peripheral surface at the tip of the connecting cylinder 17, and a fitting convex portion 22 is projected on the outer peripheral surface of the base end of the elbow part 18. It is installed. Then, the fitting concave groove 21 and the fitting convex portion 22 are fitted to each other, and the fitting convex portion 22 slides in the fitting concave groove 21, so that On the other hand, the elbow part 18 is rotatable.
The turning direction of the elbow 18 by the turning mechanism 20 is set so that the turning axis Ar of the elbow 18 is perpendicular to the pipe axis At of the drainage main pipe MD. 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 of is rotated in an oblique direction with respect to the drainage branch SD projecting from the foundation F, and the connection work of the drainage branch SD becomes complicated.
Further, a seal ring 23 for preventing water leakage is fitted on the outer peripheral surface of the base end of the elbow 18. In addition, a convex body 24 is provided on the distal end surface of the connection tube 17, and a stopper 25 is provided on the outer peripheral surface of the elbow portion 18 at a position corresponding to the convex body 24. The abutment of the stopper 25 against 24 prevents the elbow 18 from rotating more than necessary with respect to the connecting cylinder 17.

As shown in FIG. 5, the drainage facility is configured using a plurality of drainage masses 10.
In this drainage facility, a plurality of drainage masses 10 are arranged at predetermined intervals along the foundation F, and connecting pipes indicated by two-dot chain lines in the figure between the mass bodies 11A, 11B, and 11C. The drain main pipe MD is laid so as to extend substantially in parallel along the foundation F.
In each drainage mass 10, by using a length adjusting unit provided in the connection cylinder 17 in each branch pipe connection part 12, the top end of the elbow part 18 from the pipe axis At of the drainage main pipe MD in a plan view. the length L _a to aperture center 18a is set equal for all the catch basin 10. Then, drainage main MD, since run parallel along the foundation F, from basic F to aperture center 18a of the elbow portion 18 tip length L _B are unified in all the catch basin 10. Therefore, as many pipes as necessary from the foundation F to the elbow part 18 are prepared, and only the end of the drainage branch SD and the elbow part 18 are sequentially bonded, and the dimensions are adjusted for each drainage mass 10. The work of bonding can be omitted.
Further, in the drainage facility, since the rotation mechanism 20 is provided between the connecting cylinder 17 and the elbow part 18, for example, as shown in FIG. 1, in the direction in which the tube axis At of the drainage main pipe MD extends. Even when the end of the drainage branch SD is displaced from the elbow 18, the drainage branch SD is rotated by turning the elbow 18 so as to face the end of the drainage branch SD. And the elbow 18 can be connected at the shortest distance.

  In the present invention, the connection position of the end of the drainage branch pipe can be changed so as to correspond to the position of the end of the drainage branch pipe, and the work related to the laying of the drainage facility can be simplified. There is industrial applicability.

DESCRIPTION OF SYMBOLS 10 Draining mass 11 Mass main body 12 Branch pipe connection part 13 Receptacle 14 Mass receptacle 15 Branch pipe 16 Connection port 16a Adapter 17 Connection cylinder 17A Length adjustment part 17B Connection part 18 Elbow part 18a Opening center At Pipe axis Ar Rotation axis F Foundation MD Drain main SD SD Drain branch

Claims (8)

The drainage mass is a method for implementing a drainage facility that joins a drainage branch pipe laid through the foundation of the building from the inside to an outdoor drainage pipe laid substantially along the foundation of the building using a drainage mass ,
The drainage mass includes a mass body provided with a receptacle in the opening direction substantially the same as the direction in which the tube axis of the drainage main pipe extends, and a branch pipe connection portion to which the drainage branch pipe is connected,
In the mass body, the connection port is formed so as to be in an opening direction orthogonal to or intersecting with the direction in which the pipe axis of the drainage main pipe extends,
The branch pipe connection portion has a connection cylinder connected to the connection port, and an elbow portion provided at the tip of the connection cylinder to connect the drainage branch pipe,
The connecting tube has a length adjusting portion for adjusting a length of up to aperture center of the elbow tip from the tube axis of the drainage main pipe,
A plurality of drainage masses are arranged at predetermined intervals along the foundation, and the drainage main pipes are laid so as to extend substantially parallel to the foundations by connecting the respective mass bodies with connecting pipes. Laying process ,
An adjustment step in which the length from the pipe axis of the drainage main pipe in plan view to the center of the opening of the elbow part is set equally for all drainage masses by the length adjustment part of the connection cylinder, How to install drainage facilities. The drainage mass construction method according to claim 1, wherein the plurality of drainage masses include drainage masses having different mass main body shapes. A drainage mass used in the construction method of the drainage facility according to claim 1 or 2,
The connecting tube is provided with a straight pipe portion that extends linearly along the opening direction of the connection port, and the straight pipe portion extends from the pipe axis of the drainage main pipe in plan view to the opening center of the elbow part tip. A drainage mass characterized by being used as the length adjusting unit for adjusting the length. In the branch pipe connecting portion, a turning mechanism for turning the elbow portion with respect to the connecting tube is provided between the connecting tube and the elbow portion, and a turning shaft of the elbow portion is provided. The drainage mass according to claim 3 , wherein the pivot direction of the elbow part by the pivot mechanism is set so that is perpendicular to the tube axis of the drainage main pipe. A drainage facility configured by using a plurality of drainage masses according to claim 3 ,
While connecting a plurality of drainage masses with a connecting pipe to constitute a drainage main pipe, each drainage mass is constituted by connecting a drainage branch pipe to the branch pipe connection part,
By using the length adjusting part provided in the branch pipe connecting part, the length from the pipe axis of the drainage main pipe to the opening center of the elbow part tip in plan view is made substantially equal among the plurality of drainage masses. so,
The drainage system, wherein the plurality of drainage masses are respectively arranged so that the distance from the foundation of the building to the mass body in plan view is substantially equal. A drainage facility configured by using a plurality of drainage masses according to claim 4 ,
While connecting a plurality of drainage masses with a connecting pipe to constitute a drainage main pipe, each drainage mass is constituted by connecting a drainage branch pipe to the branch pipe connection part,
By using the length adjusting part provided in the branch pipe connecting part, the length from the pipe axis of the drainage main pipe to the opening center of the elbow part tip in plan view is made substantially equal among the plurality of drainage masses. so,
The plurality of drainage masses are respectively arranged so that the distance from the foundation of the building to the mass body in plan view is substantially equal,
Furthermore, the drainage system characterized by using the rotation mechanism provided in the said branch pipe connection part, and the elbow part of this branch pipe connection part is aligned with the terminal of the said drainage branch pipe. A drainage facility in which a drainage branch pipe pierced from the indoor through the foundation of the building is joined to an outdoor drainage pipe laid substantially along the foundation of the building using a drainage mass,
The drainage mass includes a mass body provided with a receptacle in the opening direction substantially the same as the direction in which the tube axis of the drainage main pipe extends, and a branch pipe connection portion to which the drainage branch pipe is connected,
In the mass body, the connection port is formed so as to be in an opening direction orthogonal to or intersecting with the direction in which the pipe axis of the drainage main pipe extends,
The branch pipe connection portion has a connection cylinder connected to the connection port, and an elbow portion provided at the tip of the connection cylinder to connect the drainage branch pipe,
The connecting tube is provided with a straight pipe portion that extends linearly along the opening direction of the connection port, and the straight pipe portion extends from the pipe axis of the drainage main pipe in a plan view to the opening center of the tip of the elbow part. It has a length adjustment part that adjusts the length,
The plurality of drainage masses are arranged at predetermined intervals along the foundation, and the drainage main pipes are substantially parallel along the foundation by being connected between the mass bodies by connecting pipes. Laid to extend,
The drainage system characterized in that the length from the tube axis of the drainage main pipe to the center of the opening at the tip of the elbow part is set equally for all drainage masses by the length adjusting portion of the connection cylinder. The drainage system according to claim 7, wherein the plurality of drainage masses include drainage masses having different mass main body shapes.

Images