JP2010126970A - Collecting pit and building drain system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a collecting pit whose interior can be inspected or cleaned from the lateral side even in a narrow space, and a building drain system using the collecting pit. <P>SOLUTION: The collecting pit includes a pit body with a closed top, at least three or more inflow ports extending laterally from the side faces of the pit body, and an outflow port extending straight or slantly downward from the bottom of the pit body. At least one of the inflow ports has a fixing means for removably connecting a flexible pipe to the inflow port and serves as a flexible pipe connecting hub with an interior wall formed in an area facing the inflow port inside the pit body. At regular operation, the flexible pipe is connected to the flexible pipe connecting hub to collect general wastewater. At nonregular operation, the flexible pipe is removed from the flexible pipe connecting hub to allow inspection and cleaning of the interior of the collecting pit. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention is a collective arrangement that is arranged to collect miscellaneous wastewater discharged from a bath, a sink, a wash basin, etc. in a detached house, a low-rise house, or a small-scale apartment house, and the like. With regard to building drainage systems, special arrangements such as inflow ports and flexible pipes, especially in narrow spaces where it is impossible to open the inspection lid from the top of the collective assembly to inspect or clean the interior. The present invention relates to an assembly that makes them possible by combining them with a building drainage system and a building drainage system using the assembly. The aggregate of the present invention can also be used as a collective joint.

  In general, miscellaneous drainage discharged from a bath, a sink, a wash basin, etc. in a detached house, a low-rise house, a small-scale apartment house, etc. is disclosed in, for example, Japanese Patent Laid-Open Nos. 5-156675 and 2002-2002. 339424 (Patent Document 2), JP 2005-290676 (Patent Document 3), JP 2007-77750 (Patent Document 4) and JP 2007-113343 (Patent Document 5). As shown in the figure, the collected wastewater is collected through the foundation through pipes and collected into the collective tanks placed under the floor through resin pipes made of vinyl chloride and the like. be introduced.

  In such a drainage system as described above, drainage discharged from a plurality of drainage facilities is collected in one place and then introduced into an outdoor drainage via a single basic through pipe. Since it is only necessary to provide one simplified through hole for penetrating the drain pipe, there is an advantage that piping and foundation work are simplified and the strength of the building foundation is hardly reduced.

  However, since the drainage system as described above is installed in an extremely narrow space such as under the floor of an indoor space, there is a problem that inspection and cleaning of these drainage facilities are not easy.

  That is, in general, an inspection port and an inspection lid are provided on the upper portion of the assembly for the purpose of enabling inspection and cleaning inside the assembly. However, since there is no room in the height direction in a narrow space such as under the floor, in practice, the installed inspection lid cannot be easily removed, and even if the inspection lid can be removed, It was impossible to inspect or clean the interior of the assembly from above.

  In addition, there is a case where a flexible pipe extending from an indoor drainage facility is connected to the assembly as described in Patent Documents 2 and 4, for example. Therefore, in such a case, when you want to check the interior of the assembly, remove the flexible tube from the assembly, and check and clean the interior of the assembly from the connection port where the flexible tube was attached. It is also possible.

  However, in general, the connecting port of the collecting mass extends from the main body in the lateral direction, whereas the inner area of the collecting mass that requires cleaning extends in the vertical direction perpendicular to the connecting port. In particular, it was difficult to clean the inside of the mass gathered through this bent portion.

JP-A-5-156675 JP 2002-339424 A JP-A-2005-290676 JP 2007-77750 A JP 2007-113343 A JP 2004-84887 A JP 2004-353445 A

  Therefore, the present invention is a collective that is arranged to collect miscellaneous wastewater discharged from a bath, a sink, a wash basin, etc. in a detached house, a low-rise house, or a small-scale apartment house. An object of the present invention is to provide a building drainage system using the assembly drainage system that can be inspected and cleaned inside a very small space such as under the floor in the building drainage system used.

  Therefore, the present inventors, etc., collect the wastewater discharged from a plurality of drainage facilities in one place in the residential land, the arrangement of the inlet and outlet and the piping connected to them As a result of intensive studies on the types of materials and their connection methods, a specific inlet is provided with an inner wall surface that guides the insertion of a cleaning tool, etc., in a region facing it, and is detachably connected to a flexible tube. It is concluded that it is most effective and economical to provide the second function as an inspection port (and cleaning port) to one inflow port by combining the above and the present invention is completed. I came to let you.

  That is, according to the present invention, the main body is closed at the top, at least three or more inlets extending laterally from the side of the main body, and extending downward or obliquely downward from the bottom of the main body. And at least one of the inlets is provided with a fixing means for detachably connecting a flexible tube, and said inlet in the interior of the body And a flexible tube connection receptacle having an inner wall surface formed in a region facing the flexible tube, and in a steady state, the flexible tube is connected to the flexible tube connection receptacle for collecting miscellaneous wastewater, and The assembly is provided such that the assembly can be inspected and cleaned by removing the flexible tube from the flexible tube connection port at regular times.

  The assembly of the present invention has its upper part (ceiling part) closed and does not have a dedicated inspection port. However, the assembly of the present invention is provided with three or more inflow ports for lateral drainage extending laterally from the side, and one of the inflow ports is used for inspection and cleaning of the inside of the main body. Has been devised to make it easier. That is, in the collective of the present invention, at least one inflow port is designed to function as an inflow port for miscellaneous drainage during steady state and as an inspection port and a cleaning port during non-steady state.

  For this reason, in the present invention, a receiving port for connecting a flexible tube is formed at the inflow port that also serves as an inspection port, and a fixing means for detachably connecting the flexible tube is provided. . This is because a flexible tube is connected to an inlet that also serves as an inspection port (hereinafter, this inlet is referred to as a “flexible tube connection receiving port”). This is because the inside of the assembly can be inspected and cleaned by removing the flexible tube from the receiving port for connecting the flexible tube. Therefore, conversely, the flexible tube is connected to the flexible tube connection port in order to collect miscellaneous wastewater.

  In the present invention, the kind and structure of the fixing means that can be used for detachably connecting the flexible tube to the flexible tube connection port is not particularly limited, and widely used products can be used.

  For example, as a fixing means suitable for use in the present invention, as described in Japanese Patent Application Laid-Open No. 2004-84887 (Patent Document 6), a flexible tube is assembled in a receiving port for connecting flexible tubes. Of the type that is connected by screwing a fixing nut that engages with a protrusion fitted in a valley portion of the flexible tube to a thread provided on the outer peripheral surface of the flexible tube connection port. There is something. In the case of this type of fixing means, the fixing nut can be held in advance on the outer periphery of the flexible tube so that it is convenient for construction.

  As another type of fixing means, as shown in FIGS. 3 to 5 in the above-mentioned Patent Document 2, a flexible tube is inserted into a flexible tube connection receptacle. Thereafter, there is a type in which a connection is made by connecting a two-way annular stopper engaging with a trough portion of the flexible tube and an annular groove provided on the outer peripheral surface of the flexible tube connection port. In the case of this type of fixing means, there is an advantage that the processing on the outer peripheral surface of the flexible tube connection port is only required to be provided with an annular groove, which is extremely simple.

  In the collection port of the present invention, the flexible tube connection receptacle must have an inner wall surface formed in a region (also referred to as “opposite side”) facing the receptacle inside the main body. This is because when a cleaning tool such as a brush is inserted laterally from the flexible tube connection receptacle for the purpose of cleaning the inside of the main body, etc., in an unsteady state, the tip portion is made to collide with the inner wall surface, This is because it is indispensable for changing the direction of the main body in the vertical direction (usually guiding downward).

  For example, in the case of a general assembly, there is no guarantee that the inner wall surface is formed on the opposite side of the inlet provided on the side surface of the main body, and usually all or part of the other outlet is formed. Therefore, for example, when a brush is attached to the tip of the wire and a bendable cleaning tool (snake wire brush) is inserted from the inlet of a general assembly, the cleaning tool penetrates into the main body. In other words, there is an inconvenience of being caught by being inserted into another inflow port on the opposite side.

  On the other hand, in the case of the assembly of the present invention, since the formation of the inner wall surface is guaranteed on the opposite side of the receiving port for the flexible tube connection, the above snake wire brush is received by the receiving tube for the flexible tube connection. Even if it is inserted laterally from the mouth, its tip collides with an inner wall surface formed on the opposite side of the receiving port for connecting the flexible tube, and is surely guided to the lower side of the main body. As a result, according to the assembly of the present invention, the inner wall surface of the assembly is bent even though the place that needs to be cleaned is bent from the receiving port for the flexible tube that also serves as the inspection port and is in a recessed position. Utilizing and using a snake wire brush or the like allows the inside to be easily cleaned.

  Thus, in the assembly of the present invention, the main purpose of providing the inner wall surface in the region facing the flexible tube connection receptacle also serving as the inspection port is to ensure that the cleaning tool inserted from the flexible tube connection receptacle is secured. The purpose of this is to eliminate the inconvenience of having a collective inspection port on the side, such as making it possible to clean the inside of the main body evenly. Therefore, in the present invention, the inner wall surface may be formed in a region facing the flexible tube connection socket in the main body, and the form may be formed integrally with the main body. It may be formed as a separate body by a plug or the like attached to close the other inflow port.

  However, in the latter case, since one of the inlets must be closed and used, a set having at least one more inlet for the planned number of drainage pipes for miscellaneous drainage to be connected. You should keep in mind that you must choose. In addition, when the number of collective inlets is insufficient with respect to the number of drain pipes to be connected, it is also possible to cope by attaching a header having a plurality of inlets to one of the inlets. .

  In addition, when another inlet is formed in a region facing the flexible tube connection inlet (inlet), a receptacle for connecting the flexible pipe is also formed in the other inlet, and is acceptable. It is preferable to form a second flexible tube connection port by providing a fixing means for detachably connecting the flexible tube. In this case, since the two flexible pipe connection inlets (inflow ports) will be arranged substantially symmetrically with respect to the main body, it is possible to use either side depending on the actual construction situation. It is possible to connect the flexible tube to the flexible tube connection receptacle and to select the side of the flexible tube connection receptacle to which the plug is attached on the site. is there.

  Therefore, in the collective of the present invention, all the inlets provided on the side surfaces of the main body are formed with receiving ports for connecting the flexible tubes and fixed for detachably connecting the flexible tubes. It is good also as a receptacle for a flexible tube connection by providing a means.

  It is preferable that the outlet arranged in the assembly has the same diameter or a larger diameter with respect to the inlet and the outlet for connecting the flexible tube. This is because in the collection, miscellaneous wastewater generated in a plurality of drainage facilities is collected through the inflow port to the collective wastewater, and the collected miscellaneous wastewater is collectively discharged from the outflow port. However, miscellaneous wastewater is not generated at the same time in a plurality of drainage facilities and is not discharged toward the gathering at the same time. Rather, such a case rarely occurs. Therefore, considering the processing capacity and cost of the aggregate from the assumed usage of the aggregate, the outlet does not necessarily have a large diameter with respect to the inlet and the flexible tube connection receptacle. There may be.

  Moreover, it is preferable that the receiving port for flexible tube connection is the same diameter or a large diameter with respect to the other inflow port. This is because the flexible tube connection port may be used as an inspection port and a cleaning port which are more advantageous as the diameter is larger. Therefore, the flexible tube connection port is connected to a drainage system from a bathroom where a relatively large amount of drainage is concentrated in miscellaneous drainage, and therefore a relatively large-diameter pipe needs to be laid. It is preferable.

  Connected to the downstream side when the amount of drainage from each drainage facility such as a bath, a sink, and a sink is suddenly increased or its flow rate is increased in a collective installed under the floor of a house as in the present invention. In some cases, a negative pressure is generated by closing the pipe portion thus closed to block the ventilation in the pipe. And this negative pressure causes the problem of destroying the sealing water of the drain piping from the drainage facility.

  For this reason, the assembly of the present invention is directed upward on the upper wall surface of the outside of the main body so that a vent valve or the like can be installed in the future in order to prevent the occurrence of negative pressure in the piping. You may provide the preliminary | backup opening which is extended in the cylinder shape and the inside is closed on the upper wall surface. The closed upper wall surface inside the preliminary outlet is used by drilling and opening with a drill or the like at the time of use. Further, the closed upper wall surface may be opened in advance, and a stopper may be attached to the opening and closed.

  In addition, the type of the vent valve used for the assembly mass of the present invention is not particularly limited, but considering that it is used in a space where there is no room in the height direction, such as under the floor where backflow of drainage can occur. For example, it is preferable to use a vent valve with a backflow prevention function (drainage venting device) that is space-saving in the height direction as described in Japanese Patent Application Laid-Open No. 2004-353445 (Patent Document 7).

  In the set of the present invention, the amount of drainage generated in each drainage facility such as a bath, a sink, a wash basin, etc. is not constant, and there are various sizes of drainage pipes selected correspondingly, so it gathers It is desirable that the diameter of the inlet of the pipe should be able to flexibly correspond to the diameter of the drainage pipe to be connected.

  For this reason, in the assembly of the present invention, the flexible tube connection socket can be provided with a conversion socket (reduced diameter socket) for converting the socket into a smaller socket, and the conversion socket is acceptable. The flexible tube is fixed to the flexible tube connection port using a fixing means for fixing the flexible tube.

  In addition, the socket of the conversion socket includes a second fixing means having the same structure as that attached to the base of the flexible tube connection so that the flexible tube can be detachably connected. May be. Accordingly, the second fixing means used for the conversion socket is also of the type using a fixing nut as described in Patent Document 6, for example, similarly to the fixing means used for the flexible tube connection receptacle. Means, a fixing means of a type using a two-piece annular stopper as shown in FIGS. 3 to 5 in Patent Document 2, and the like can be used.

  According to the present invention, the main body is closed at the top, at least three or more inlets extending laterally from the side of the main body, and extending downward or obliquely downward from the bottom of the main body. The at least one inlet among the inlets is provided with a fixing means for detachably connecting a flexible tube, and the inside of the main body is the outlet. A flexible tube connection receptacle having an inner wall surface formed in a region facing the inlet, and in a steady state, a flexible tube is connected to the flexible tube connection receptacle to collect miscellaneous waste water. In an unsteady state, the inside of the assembly can be inspected and cleaned by removing the flexible tube from the receiving port for connecting the flexible tube. Flexible tube protected by It is possible to provide a building drainage system comprising by connecting a flexible pipe joint directly or indirectly to the outlet of said set masu, the foundation through piping.

  In such a building drainage system, miscellaneous drainage discharged from a plurality of drainage facilities is collected and collected in one place and introduced into an outdoor drainage via a single basic through pipe, making the piping structure extremely simple. It becomes. Moreover, since only one through hole for penetrating the drainage pipe is required, the piping and foundation work are simplified, and the strength of the building foundation is hardly reduced.

  Furthermore, since the foundation through pipe (flexible pipe) connected to the outlet of the collecting mass is a foundation through pipe of the type whose periphery is protected by a separate sheath pipe, the sheath pipe is preliminarily placed when placing concrete. If it is embedded so as to penetrate the foundation, the foundation penetration pipe (flexible pipe) can be freely piped through the sheath pipe after the concrete is placed.

  According to the present invention, in a detached house, a low-rise house, or a small-scale apartment house, etc., it is arranged to collect miscellaneous wastewater discharged from a bath, a sink, a sink, etc. Even in an extremely small space, it is possible to provide an assembly that enables internal inspection and cleaning.

  In addition, according to the present invention, by using the above-described aggregated mass, by directly or indirectly connecting a flexible tube or a flexible pipe joint, the periphery of which is protected by a sheath tube, to the mass flow outlet, A building drainage system having a foundation through pipe can be provided.

  Therefore, according to the above building drainage system, the drainage discharged from a plurality of drainage facilities is collected in one place and is introduced into the outdoor drainage via one foundation through pipe, so the piping structure is extremely Simplified. Further, since only one through-hole for penetrating the drainage pipe is required, it is possible to obtain an excellent effect that piping and foundation work are simplified and the strength of the building foundation is hardly lowered.

  Hereinafter, a collective mass and a building drainage system using the same according to an embodiment of the present invention will be described in detail with reference to the drawings. The present invention is not limited to the examples shown below, and various modifications can be made without departing from the technical idea of the present invention.

[Example 1]
FIG. 1 shows a side view (a) of a set 1a of the first embodiment according to the present invention, a side cross-sectional view (b) of the set 1a cut along the AA cross section of FIG. 1 (c), and FIG. The front cross-sectional view (c) of the collective ladle 1a cut out at the BB cross section of FIG.

  As can be understood with reference to FIG. 1, the assembly 1a of the first embodiment includes a main body 2a whose upper portion is closed, and a flexible tube connection receiver that extends laterally from the side surface of the main body 2a. Similarly, two inlets 4 and 5 that extend laterally from the side surface of the main body 2a and face each other so as to be orthogonal to the receiving port 3 for connecting the flexible tube, and from the bottom of the main body 2a The outlet 6 extends downward.

  However, the outlet 6 does not necessarily have to extend downward (vertical direction) as shown in FIG. 1 and may extend obliquely downward with respect to the vertical direction. In the assembly 1a of the first embodiment, the two inlets 4 and 5 form a receiving port shape and the outlet port 6 forms a difference port shape, but each has the opposite shape. It is not limited to these shapes.

  The receiving port 3 for connecting the flexible pipe of the collecting head 1 a has the same diameter as the outlet 6, and the other two inlets 4 and 5 are smaller in diameter than the outlet 6. The reason for this is that miscellaneous wastewater discharged from baths, sinks, washstands, etc., is generated at the same time in these drainage facilities and does not discharge to 1a at the same time. This is because, in the case of setting, it is considered that there is a margin in the discharge capacity of 1a which is substantially collected.

  The reason why the flexible tube connection receiving port 3 has the largest diameter among the inflow ports 3, 4, and 5 is that it is considered that the larger the diameter is, the more advantageous when performing inspection and cleaning. . Accordingly, in the assembly 1a of the first embodiment, a relatively large amount of drainage is concentrated in the miscellaneous drainage at the flexible tube connection receptacle 3, and therefore a bathroom that requires a relatively large diameter pipe. It is preferable to connect the drainage system from

  Further, in the assembly 1a of the first embodiment, in order to prevent the generation of negative pressure in the pipe in the future, a vent valve 80 (see FIG. 5) or the like can be installed in the upper part of the main body 2a. On the wall surface 21, a preliminary opening 8 is provided which extends in a cylindrical shape upward and is closed on the upper wall surface 21. The closed upper wall surface 21 inside the preliminary outlet 8 is used by being drilled and opened by a drill or the like during use. In addition, although not shown, the closed upper wall surface 21 may be opened in advance and closed by attaching a stopper to the opening.

  As shown in FIG. 1 (a), the flexible tube connection receptacle 3 of the assembly 1a is provided with a fixing means 7 for detachably connecting a flexible tube (not shown), and fixed. The means 7 includes a screw thread 70 provided on the outer peripheral surface of the flexible tube connection receiving port 3 and a fixing nut 71 (see FIG. 4) screwed into the screw thread 70. This is because the flexible tube is connected to the flexible tube connection receiving port 3 so that the flexible tube can be inspected and cleaned in an unsteady state by inspecting and cleaning the inside of the assembly 1a. This is because it can be removed from the mouth 3. Therefore, on the contrary, the flexible tube is connected to the flexible tube connection receiving port 3 in order to collect miscellaneous wastewater.

  In the case of the fixing means 7 of the type using the fixing nut 71 as described above, the flexible tube is connected to the flexible tube connection receiving port 3 by connecting the flexible tube into the flexible tube connection receiving port 3. After the insertion, a fixing nut 71 that engages with a protrusion (C-ring) fitted in the valley of the flexible tube is screwed into a thread 70 provided on the outer peripheral surface of the flexible tube connection port 3. Can be easily connected. Further, in the case of this type of fixing means 7, the fixing nut 71 can be rotatably held on the outer periphery of the flexible tube in advance, which is convenient for construction.

  In the present invention, the kind and structure of the fixing means 7 that can be used for detachably connecting the flexible tube to the flexible tube connection port 3 are not particularly limited, and widely used products are used. be able to.

  Further, as understood with reference to FIGS. 1B and 1C, the flexible tube connection receiving port 3 of the collective 1a is further connected to the flexible tube connection receiving port 3 inside the main body 2a. An inner wall surface 20 is formed in a region facing the surface.

  This is because, when a cleaning tool such as a snake wire brush is inserted laterally from the flexible tube connection receiving port 3 for the purpose of cleaning the inside of the main body 2a in an unsteady state, the tip of the inner wall 20 This is indispensable for causing the main body 2a to change its direction in the vertical direction (usually guided downward). As a result, in the assembly 1a of the first embodiment, the place where cleaning is required is assembled even though it is bent from the flexible tube connection receiving port 3 which also serves as an inspection port and is in a deep position. By using the inner wall surface 1a of 1a and using a snake wire brush or the like, the inside can be easily cleaned.

  As described above, the assembly 1 of the first embodiment has its upper portion 21 (ceiling portion) closed and does not have a dedicated inspection port. However, the assembly 1a of the first embodiment includes the flexible tube connection receiving port 3 extending in the lateral direction from the side surface and the two inflow ports 4 and 5, and uses the flexible tube connection receiving port 3. The main body 2a is devised so that it can be easily inspected and cleaned. That is, in the assembly 1a of the first embodiment, at least one inflow port (flexible tube connection receiving port 3) functions as an inflow port for miscellaneous drainage in a steady state, and an inspection port and a non-steady state. Designed to function as a cleaning port.

[Example 2]
FIG. 2 shows a top view (a) of the assembly 1b of the second embodiment according to the present invention, a side view (b) of the assembly 1b, and a plane of the assembly 1b cut along the AA cross section of FIG. 2 (b). A cross-sectional view (c) and a side cross-sectional view (d) of the assembly 1b cut along the BB cross-section of FIG. 2 (a) are shown.

  As can be understood with reference to FIG. 2, the assembly 1b of the second embodiment is the central axis of the two inlets 4 ′ and 5 ′ facing each other so as to be orthogonal to the flexible tube connection port 3. The position of 1 is set back from the position of the central axis of the two inlets 4 and 5 of the assembly 1a of the first embodiment to the inner wall surface 20 side, and the outlet 6 is changed from the opening shape to the receiving shape. Except for the change, it has the same structure as the assembly 1a of the first embodiment.

  Therefore, the assembly 1b of the embodiment 2 includes the main body 2b whose upper portion is closed, the flexible tube connection receiving port 3 extending laterally from the side surface of the main body 2b, and the side surface of the main body 2b. Two inflow ports 4 'and 5' that extend laterally from each other and face each other so as to be orthogonal to the receiving port 3 for the flexible tube, and an outflow port 6 that extends downward from the bottom of the main body 2b. The flexible tube connection receiving port 3 is provided with a fixing means 7 for detachably connecting the flexible tube, and for connecting the flexible tube inside the main body 2b. An inner wall surface 20 is formed in a region facing the receiving port 3.

  In the same way as the collective lumps 1a of the first embodiment, the flexible tube is connected to the flexible tube connection port 3 in order to collect miscellaneous wastewater in the steady state. At regular times, the inside of the assembly 1b can be inspected and cleaned by removing the flexible tube from the receiving port 3 for connecting the flexible tube.

[Example 3]
FIG. 3 shows a top view (a) of a set m 1c of Example 3 according to the present invention, a side view (b) of the set m 1c, and a plane of the set m 1c cut along the AA cross section of FIG. 3 (b). A cross-sectional view (c) and a side cross-sectional view (d) of the assembly 1c cut along the BB cross-section of FIG. 3 (a) are shown.

  As can be understood with reference to FIG. 3, the assembly 1 c of the third embodiment is configured such that the flexible tube connection receiving port 3 and the flexible tube connection receiving port 3 face each other so as to be orthogonal to each other. Second and third flexible tube connection receptacles 30 and 31 are provided, and the third flexible tube connection receptacle 31 is fitted with a plug 9 for closing the receptacle. Furthermore, the outflow port 6 of the assembly 1c of the third embodiment has the shape of a receiving port, and other than that, it has the same structure as the assembly 1a of the first embodiment.

  Therefore, the assembly 1c of Example 3 is the same body as the main body 2c whose upper part is closed and the first flexible tube connection receiving port 3 extending laterally from the side surface of the main body 2c. Second and third flexible tube connection receptacles 30, 31 extending laterally from the side surface of 2 c and facing each other so as to be orthogonal to the flexible tube connection receptacle 3, and a third flexible The plug 9 is installed to close the pipe connection port 31 and the outlet 6 extends downward from the bottom of the main body 2c. The first, second and third flexible tube connection receptacles 3, 30, 31 are provided with fixing means 7 for detachably connecting the flexible tube, and the main body 2c. , An inner wall surface 20 is formed in a region facing the first flexible tube connection receptacle 3, and a region facing the second flexible tube connection receptacle 30 (third flexible tube An inner wall surface 90 is formed in the connection receptacle 31) by the attachment of the plug 9.

  Here, when the inflow ports are formed in a positional relationship facing each other like the second and third flexible tube connection receiving ports 30 and 31, any of the inflow ports as in the assembly 1c of the third embodiment is used. In addition, it is preferable that a receiving port for connecting the flexible tube is formed and a fixing means for detachably connecting the flexible tube is provided to provide a receiving port for connecting the flexible tube. This is because in this case, the second and third flexible pipe connection ports 30 and 31 are arranged symmetrically with respect to the main body 1c, so that either side can be used depending on the actual construction situation. It is possible to select on the site whether a flexible tube is connected to the flexible tube connection receptacle and the plug 9 is attached to the flexible tube connection receptacle on the side, and the degree of freedom of piping construction is increased. is there.

  Of the second and third flexible tube connection receptacles 30 and 31, the receptacle 31 on the opposite side of the receptacle 30 that is selected to be used with a flexible tube connected is provided with the receptacle. A plug 9 for closing the opening 31 to form the inner wall surface 90 is attached. Thus, in the assembly 1c of the third embodiment, at the time of inspection, the cleaning tool inserted from the flexible tube connection port 30 is reliably turned by the plug 9, and the inside of the main body 1c is cleaned evenly. Will be able to.

  In the assembly 1c of the third embodiment, the first flexible tube connection port 3 has a permanent inner wall surface 20 formed in a region facing the first flexible tube connection port 3, so that the flexible tube is always connected to the inspection port. It can be used as a receptacle that doubles as In addition, when a flexible tube is connected to the first flexible tube connection receiving port 3, the collection port 1c of the third embodiment secures the receiving port 3 that also serves as at least one inspection port. Therefore, it is possible to connect not only the flexible pipe but also a normal pipe that cannot be substantially removed to the second and third flexible pipe connection receptacles 30 and 31, and the plug 9 The second and third flexible tube connection receptacles 30, 31 can be used simultaneously without blocking. Therefore, it is possible to connect a flexible tube to all the flexible tube connection receptacles 3, 30, 31. In this case, the first flexible tube connection receptacle 3 serves as an inspection port. Use is advantageous because of its large diameter.

  On the other hand, when a flexible tube is not connected to at least the first flexible tube connection receiving port 3, or flexible to any one of the second and third flexible tube connection receiving ports 30, 31. When connecting a tube and intentionally using it as a receiving port also serving as an inspection port, as described above, the other side of the receiving port 30 selected to be connected and used as a flexible tube The receiving port 31 must be fitted with a plug 9 for closing the receiving port 31 to form the inner wall surface 90 (see FIG. 3C).

  Further, when the plug 9 is used in such a manner, one of the flexible tube connection receptacles cannot be used as an inflow port for miscellaneous drainage, so that the number of drainage pipes for miscellaneous drainage to be connected is reduced. A collection having at least one inlet (or receptacle for flexible tube connection) must be selected. In addition, when the number of collective inlets is insufficient with respect to the number of drain pipes to be connected, it is also possible to cope by attaching a header having a plurality of inlets to one of the inlets. .

  Thus, in the collective of the present invention, as in the collective mass 1c of Example 3, it is possible to form receptacles for connecting the flexible tubes to all the inlets provided on the side surface of the main body 2c. By providing the fixing means 7 for detachably connecting the flexible tube, the flexible tube connection ports 3, 30, 31 can be formed.

[Example 4]
The assembly 1c according to the fourth embodiment is an application example of the assembly 1c of the third embodiment. FIG. 4A shows the first flexible tube connection port 3 of the first assembly 1c of the third embodiment. FIG. 4 (b) shows a cross-sectional view of the conversion socket 10. FIG. 4 (b) shows a cross-sectional side view of the assembly 1c in a state in which the conversion socket (reduced diameter socket) 10 is attached to the front.

  As shown in FIG. 4 (b), the conversion socket 10 used in the assembly mass 1c according to the fourth embodiment includes the insertion port 11 before being reduced in diameter, which is substantially the same diameter as the flexible tube connection port 3. , Having a cylindrical shape having a receiving port 12 which is in communication with the difference port and has a reduced diameter, and an O-ring on the outer periphery thereof for sealing the connection with the receiving port 3 for the flexible tube connection An O-ring 14 mounted in the insertion groove 13 and a flange 15 for engaging the fixing nut 71 and fixing the conversion socket 10 to the flexible tube connection port 3 are provided on the receiving port 12 side. . The reduced-diameter conversion socket receptacle 12 has the same structure as that of the flexible tube connection receptacle 3 attached to the base so that the flexible tube can be detachably connected. The fixing means 7 is provided.

  Therefore, the conversion socket 10 shown in FIG. 4 (b) is converted into the conversion socket 10 after the conversion socket 10 is inserted into the first flexible tube connection port 3 as shown in FIG. 4 (a). The fixing nut 71 that engages with the 10 flanges 15 is easily fixed by being screwed onto a screw thread 70 provided on the outer peripheral surface of the first flexible tube connection receiving port 3. Further, the receiving port 12 of the conversion socket 10 is the same as the case where the conversion socket 10 is fixed in the first flexible tube connection receiving port 3, and the flexible tube is connected to the receiving port 12 of the conversion socket 10. Can be easily fixed inside.

  In addition, if the conversion socket 10 is a flexible tube connection receptacle, it is a receptacle other than the position of the first flexible tube connection receptacle 3 (for example, second and third flexible tube connection receptacles). 30 and 31), and the conversion socket 10 itself is detachably attached to the flexible tube connection receptacle, so that the second fixing means is not necessarily attached to the receptacle 12. 7 is not necessarily provided so that the flexible tube can be detachably connected.

  As a result, the set 1c of Example 4 is not constant in the amount of drainage generated in each drainage facility such as a bath, a sink, and a washstand, and there are various sizes of drainage pipes selected correspondingly. Even in this case, it is possible to flexibly cope with the diameter of each drain pipe.

[Example 5]
The set 1a according to the fifth embodiment is an application example of the set 1a of the first embodiment. In FIG. 5, the preliminary opening 8 of the set 1a of the first embodiment is drilled and opened by a drill, and the preliminary An explanatory side cross-sectional view of the assembly mass 1a in a mode in which a vent valve 80 with a backflow prevention function (drainage venting device) is attached to the outlet 8 is shown.

  In this way, when the ventilation valve 80 is attached to the collecting mass 1a, the amount of drainage from each drainage facility such as a bath, a sink, and a wash basin increases suddenly, or the flow velocity increases, and the downstream gathers. Occurrence of negative pressure caused by blocking the piping connected to the side and blocking the ventilation in the piping is prevented, and also the destruction of the sealing water provided in the drainage piping connected to the drainage equipment is prevented. Can be removed.

  The type of vent valve that can be used in the present invention is not particularly limited, but it is implemented in consideration of being used in a space where there is no room in the height direction, such as under the floor, where wastewater can flow backward. In the assembly mass 1a of Example 5, a vent valve with a backflow prevention function (drainage vent device) that is space-saving in the height direction described in Japanese Patent Application Laid-Open No. 2004-353445 (Patent Document 7) is used. Yes.

[Examples 6 and 7]
6 and 7 are side sectional views for explaining the building drainage systems 100a and 100b according to the sixth and seventh embodiments of the present invention.

  As will be understood with reference to FIGS. 6 and 7, the building drainage systems 100a and 100b of Examples 6 and 7 are assembled with the masses 101a and 102b according to the present invention as detailed in Examples 1 to 6, and the surroundings. Is constituted by a flexible tube 202 that is protected by a sheath tube 201 and connected to the outflow ports 106a and 106b of the aggregates 101a and 102b. Further, the difference between the building drainage system of Example 6 and Example 7 is that the discharge angle of the discharge ports 106a, 106b of the collective 101a, 102b used in both building drainage systems is different from that of the building drainage system 100a of Example 6. While the angle is 90 ° downward with respect to the inlet 104 (horizontal direction), the building drainage system 100b of Example 7 is only 45 ° downward with respect to the inlet 104 (horizontal direction).

  FIG. 8 shows a basic through pipe 200 composed of a sheath pipe 201 and a flexible pipe 202 connected to the drains 106a and 106b of the masses 101a and 102b. The flexible pipe 202 of the basic through pipe 200 includes sockets 203 at the upstream and downstream ends thereof, and the flexible pipe main body 204 can be easily connected to other drainage facilities or other pipes via the socket 203. Designed to.

  In the building drainage systems 100a and 100b of the sixth and seventh embodiments, the sheath tube 201 is penetrated or previously embedded in the foundation of the building, and the flexible tube 202 is inserted therein. The upstream side of the flexible tube 202 collects miscellaneous wastewater generated in indoor drainage facilities such as baths, sinks and washstands, and is connected to the outlets 106a and 106b of the 101a and 102b, and the downstream side drains 300, etc. It is connected to a drain pipe 301 that communicates with an outdoor drainage facility (see FIGS. 6 and 7).

  As described above, in the building drainage systems 100a and 100b of the sixth and seventh embodiments, the drainage discharged from the plurality of drainage facilities is collected at one place by the 101a and 102b and is outdoors by the one basic through pipe 200. Since it is introduced into the drainage basin 300, the piping structure is greatly simplified. Moreover, since only one through hole for penetrating the drainage pipe is required, the piping and foundation work are simplified, and the strength of the building foundation is hardly reduced.

  Further, since the flexible pipe 202 connected to the outlets 106a and 106b of the masses 100a and 100b is a basic through pipe 200 of which the periphery is protected by a separate sheath pipe 201, concrete casting is performed. If the sheath pipe 201 is previously embedded so as to penetrate into the foundation, the flexible pipe 202 can be freely piped through the sheath pipe 201 after the concrete is placed.

It is the side view (a) of the gathering mass of Example 1, the side sectional view (b) cut out by the AA section, and the front sectional view (c) cut out by the BB section. They are the top view (a), side view (b), plane sectional view (c) cut along the AA section, and side sectional view (d) cut along the BB section of the assembly of Example 2. It is the top view (a), side view (b), plane sectional view (c) cut along the AA section, and side sectional view (d) cut along the BB section of the assembly of Example 3. It is side surface sectional drawing (a) of the assembly which concerns on Example 4 of the aspect which attached the conversion socket to the assembly of Example 3, and sectional drawing (b) of a conversion socket. It is side surface sectional drawing for description of the assembly which concerns on Example 5 of the aspect which attached the ventilation valve with a backflow prevention function to the assembly of Example 1. FIG. It is side surface sectional drawing for description of the building drainage system of Example 6. FIG. It is side surface sectional drawing for description of the building drainage system of Example 7. FIG. It is sectional drawing of the foundation penetration piping which consists of a sheath pipe and a flexible pipe used for a building drainage system.

Explanation of symbols

1a, 1b, 1c, 100a, 100b ... gather 2a, 2b, 2c ....................................... main body 3, 30, 31,・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ Flexible tube connection 4,4 ', 5,5', 104 ・ ・ ・ ・ ・ ・ ・ ・... Inlet 6, 106a, 106b ... Outlet 7 ... Fixing means 8 ... ··· Preliminary slot 9 ····················································································································・ Receptacle 13 ・ ・ ・ ・ ・ ・ ・ ・ ・ O-ring insertion groove 14 ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ O-ring 15 ・ ・ ・ ・ ・ ・ ・ ・ ・ Flange 20, 90 ... Inner wall surface 21 ・・ ・ ・ ・ ・ ・ ・ ・ Upper wall (ceiling part
70 ··········································· 71 ... Flexible tube 202 ... Sheath tube 203 ... Socket 204 ... Flexible tube body 300 ... Drain pipe 301・ ・ ・ ・ ・ ・ ・ Drain

Claims (12)

The body with the top closed,
In the assembly consisting of at least three or more inlets extending laterally from the side of the main body and an outlet extending downward or diagonally downward from the bottom of the main body,
At least one of the inlets has a fixing means for detachably connecting a flexible tube, and an inner wall surface is formed in a region facing the inlet in the main body. And a flexible tube connected to the flexible tube connection port in order to collect miscellaneous waste water at a constant time. The assembly is characterized in that the interior of the assembly can be inspected and cleaned by removing it from the flexible tube connection receptacle.   After the flexible tube is inserted into the flexible tube connection receptacle, the fixing means is configured to connect a fixing nut that engages with a protrusion fitted in a valley portion of the flexible tube. The assembly according to claim 1, wherein the assembly is connected by screwing into a screw thread provided on an outer peripheral surface of the receiving port.   The assembly according to claim 1, wherein the inner wall surface is integrally formed with the main body.   The assembly according to claim 1, wherein the inner wall surface is formed by a plug attached to close another inflow port facing the flexible tube connection receiving port.   The assembly according to claim 1, wherein the outlet has the same diameter or a larger diameter than the inlet including the receiving port for connecting the flexible pipe.   The assembly according to claim 1, wherein the flexible tube connection port has the same diameter or a larger diameter than the other inflow ports.   2. A preliminary opening that extends in a cylindrical shape upward and is closed on the upper wall surface is provided on the upper wall surface of the main body. Set of listed.   The assembly according to claim 7, wherein the preliminary outlet includes a vent valve.   The flexible tube connection receptacle includes a conversion socket that is fixed to the flexible tube connection receptacle by the fixing means in order to convert the flexible tube connection receptacle into a smaller receptacle. The set of claim 1 characterized in that.   The assembly according to claim 9, wherein the conversion socket includes a second fixing means for detachably connecting a flexible tube to the receiving port.   The second fixing means inserts the flexible tube into the socket of the conversion socket, and then attaches a fixing nut that engages with a protrusion fitted in a trough of the flexible tube to the conversion socket. The assembly according to claim 10, characterized in that it is connected by screwing into a screw thread provided on the outer peripheral surface of the receiving port. In the case of the set according to claim 1,
A building drainage system comprising a flexible pipe or a flexible pipe joint, the periphery of which is protected by a sheath pipe and is directly or indirectly connected to the outlet of the aggregate.

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