Piping structure and piping renewal method

Abstract

To provide a piping structure capable of improving workability in updating a standpipe. [Solution] A piping structure 10 including a first fitting (first collective fitting 110) arranged on an upper floor, a second fitting (second collective fitting 120) arranged on a lower floor, and a standpipe 130 connecting the first fitting and the second fitting, wherein an insertion port 102 is formed at the lower end of the first fitting, and a receiving port 131 into which the insertion port 102 of the first fitting can be inserted is formed at the upper end of the standpipe 130, and further including a coupling member 140 provided on the standpipe 130 and capable of sliding along the longitudinal direction of the standpipe 130 to connect and disconnect the first fitting and the second fitting via the standpipe 130.

Description

[Technical Field]

[0001] The present invention relates to a piping structure and a technique for updating a piping. [Background technology]

[0002] Conventionally, technology for a piping structure including a standpipe that is installed in an apartment building or the like and that guides drainage from upper floors to lower floors has been publicly known, as described in Patent Document 1, for example.

[0003] Patent Document 1 discloses a piping structure that connects a first joint and a second joint located below the first joint. Specifically, the technology described in Patent Document 1 includes a first standpipe extending downward from the first joint, a second standpipe extending upward from the second joint, and a renewal joint that connects the first standpipe and the second standpipe.

[0004] In the piping structure described in Patent Document 1, when replacing an old standpipe with a new one, first, the replacement joint is slid upward to detach it from the second standpipe. Next, the first standpipe and the second standpipe are removed from between the first joint and the second joint. At this time, because the first standpipe is flange-connected to the first joint, it is necessary to remove bolts and the like fastened to the flange portions. After that, new first standpipe and second standpipe are installed between the first joint and the second joint. Furthermore, the first standpipe and the second standpipe are connected by the new replacement joint.

[0005] In this way, the technology described in Patent Document 1 allows for piping renewal without cutting the standpipe. However, in the piping structure described in Patent Document 1, the standpipe and the joint are flange-connected, so when renewing the piping, it is necessary to remove bolts and the like that secure the standpipe to the joint, and it is necessary to remove the standpipe horizontally while keeping it upright, which makes the work time-consuming and leaves room for improvement. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] Patent No. 7412198 Summary of the Invention [Problem to be solved by the invention]

[0007] One aspect of the present disclosure has been made in consideration of the above-described situation, and the problem it aims to solve is to provide a piping structure and a piping renewal method that can improve the workability of renewing standpipes. [Means for solving the problem]

[0008] The problem to be solved by one embodiment of the present disclosure has been described above, and next, the means for solving this problem will be described.

[0009] A piping structure according to one embodiment of the present disclosure is a piping structure including a first fitting arranged on an upper floor, a second fitting arranged on a lower floor, and a standpipe connecting the first fitting and the second fitting, wherein a spigot is formed at the lower end of the first fitting and a receptacle into which the spigot of the first fitting can be inserted is formed at the upper end of the standpipe, and the piping structure further includes a fitting member provided on the standpipe that can slide along the longitudinal direction of the standpipe to connect and disconnect the first fitting and the second fitting via the standpipe.

[0015] In one aspect of the present disclosure, the piping structure further includes a flexible member provided between the first joint and an upper end of the standpipe.

[0016] In one embodiment of the present disclosure, the first joint, the second joint, the standpipe, and the joint member are made of resin.

[0017] In one aspect of the present disclosure, the piping structure further includes a hanging device that prevents the riser pipe from descending.

[0018] Furthermore, a piping renewal method according to one embodiment of the present disclosure is a piping renewal method in the piping structure, and includes the steps of sliding the coupling member upward to disconnect it from the second coupling, removing the standpipe from the first coupling, and installing a new standpipe and coupling member between the first coupling and the second coupling. [Effects of the Invention]

[0020] According to one aspect of the present disclosure, the workability of updating a standpipe can be improved. [Brief explanation of the drawings]

[0021] [Figure 1] Schematic diagram showing an apartment building to which the piping structure is applied. [Figure 2] A front view showing the piping structure installed between the upper and lower floors. [Figure 3] FIG. [Figure 4] (a) A front cross-sectional view showing the standpipe. (b) A front cross-sectional view showing the joint member. [Figure 5] FIG. 1 is a front view showing the state of updating the standpipe according to the first embodiment. [Figure 6] FIG. 10 is a front view showing a piping structure according to a second embodiment. [Figure 7] FIG. 10 is a partial cross-sectional front view showing a joint member according to a second embodiment. [Figure 8] FIG. 10 is a front view showing the state of the vertical pipe renewal according to the second embodiment. [Figure 9] FIG. 10 is a front view showing a piping structure according to a third embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0022] Hereinafter, an overview of an apartment building 1 to which a piping structure 10 according to a first embodiment of the present invention is applied will be described with reference to FIG.

[0023] The apartment building 1 is a building (such as an apartment or condominium) in which multiple residences 2 are provided. In this embodiment, an example is shown in which a residence 2 is provided on each floor of a building divided into upper and lower sections by floor slabs 3. Each residence 2 is provided with appliances that generate wastewater. In this embodiment, an example is shown in which each residence 2 is provided with a sink 4, a washing machine 5, and a toilet 6. Wastewater generated in the sink 4, etc. is drained into a sewer pipe by a piping structure 10.

[0024] Next, a piping structure 10 according to this embodiment will be described with reference to FIGS.

[0025] The piping structure 10 is for draining wastewater generated in each of the houses 2 in the apartment building 1 into a sewer pipe. The piping structure 10 mainly comprises a collection joint 100 (a first collection joint 110 and a second collection joint 120), a stand pipe 130, a joint member 140, a band member 150, a hanging device 160, a vent pipe 170, a leg joint 180, and a horizontal pipe 190.

[0026] The collecting joint 100 shown in FIGS. 1 to 3 is a joint that collects wastewater from the floor where it is installed and wastewater from the floor above and guides it downward. The collecting joint 100 is formed, for example, from a resin material. As shown in FIG. 2, the collecting joints 100 are provided on both the upper and lower sides of the standpipe 130 (on the upper and lower floors, respectively). In this embodiment, of the successive floors, the upper floor is referred to as the upper floor, and the lower floor is referred to as the lower floor. In this embodiment, in order to distinguish between the collecting joints 100 provided above and below the standpipe 130, the collecting joint 100 connected to the upper end of the standpipe 130 (the collecting joint 100 on the upper floor) is referred to as the first collecting joint 110. In addition, the collecting joint 100 connected to the lower end of the standpipe 130 (the collecting joint 100 on the lower floor) is referred to as the second collecting joint 120. The first collective joint 110 and the second collective joint 120 have the same configuration, and therefore the following description will focus mainly on the first collective joint 110.

[0027] The first collective joint 110 shown in FIGS. 2 and 3 mainly comprises a socket 101, a spigot 102, a branch port 103, and the like.

[0028] The socket 101 is a portion formed at the upper end of the first collective joint 110. The socket 101 is formed so as to open upward. The socket 101 is formed in a shape that allows the lower end (insertion port 142) of the coupling member 140, which will be described later, to be inserted therein. Specifically, the socket 101 is formed so as to have an inner diameter that is slightly larger than the outer diameter of the insertion port 142 of the coupling member 140. Although not shown in the drawings, a flexible member (such as a rubber ring) can be provided inside the socket 101 to improve the sealing performance between the socket 101 and the coupling member 140, which will be described later.

[0029] The insertion port 102 is a portion formed at the lower end of the first collective joint 110. The insertion port 102 is formed so as to open downward. The insertion port 102 is formed in a shape that allows it to be inserted into the upper end (receptacle 131) of the standpipe 130, which will be described later. Specifically, the insertion port 102 is formed so as to have an outer diameter that is slightly smaller than the inner diameter of the receptacle 131 of the standpipe 130.

[0030] The branch port 103 is a portion formed on the side surface of the first collective joint 110. The branch port 103 is formed so as to open to the side. In this embodiment, one branch port 103 is formed in the first collective joint 110, but multiple (two or more) branch ports 103 may be formed, for example.

[0031] The socket 101, the outlet 102, and the branch outlet 103 are connected inside the first collecting joint 110. As a result, wastewater that flows into the first collecting joint 110 from the socket 101 and the branch outlet 103 is discharged downward from the outlet 102 due to its own weight.

[0032] Similar to the first collective joint 110, the second collective joint 120 also has a socket 101, a spigot 102, a branch port 103, and the like (see FIG. 2).

[0033] As shown in Figure 2, the collective joint 100 is arranged so as to penetrate vertically through the floor slab 3 of each floor. The branch outlet 103 of the collective joint 100 is arranged so as to be located above the floor slab 3. The branch outlet 103 is connected to the sink 4, washing machine 5, toilet 6, etc. (see also Figure 1) on the floor where the collective joint 100 is installed, and wastewater from the sink 4, etc. is guided to the collective joint 100.

[0034] The standpipe 130 shown in Figures 1, 2, and 4(a) is a pipe that guides wastewater from an upper floor to a lower floor. The standpipe 130 is made of, for example, a resin material. The standpipe 130 is formed in a cylindrical shape with its axis facing up and down. The standpipe 130 mainly includes a receiving port 131, an insertion port 132, a flexible member 133, etc.

[0035] The socket 131 is a portion formed at the upper end of the standpipe 130. The socket 131 is formed so as to open upward. The socket 131 is formed in a shape that allows the lower end (insertion port 102) of the collective joint 100 to be inserted into it. Specifically, the socket 131 is formed so as to have an inner diameter that is slightly larger than the outer diameter of the insertion port 102 of the collective joint 100.

[0036] The insertion port 132 is a portion formed at the lower end of the standpipe 130. The insertion port 132 is formed to open downward. The insertion port 132 is formed in a shape that allows it to be inserted into the upper end (receptacle 141) of the coupling member 140, which will be described later. Specifically, the insertion port 132 is formed to have an outer diameter that is slightly smaller than the inner diameter of the receptacle 141 of the coupling member 140. Note that the standpipe 130 according to this embodiment is formed to have a constant outer diameter from the lower end (insertion port 132) to the vicinity of the upper end; however, for example, only the lower end (insertion port 132) may be reduced in diameter (or increased in diameter) in accordance with the inner diameter of the coupling member 140.

[0037] The flexible member 133 is a flexible member provided inside the upper end (receptacle 131) of the standpipe 130. The flexible member 133 is formed in an annular (ring-like) shape that fits along the inner circumferential surface of the receptacle 131. The flexible member 133 is made of a flexible material such as rubber. As shown in FIG. 4(a), the flexible member 133 is fixed to the inner circumferential surface of the receptacle 131. Note that the flexible member 133 may be prepared as a separate member from the standpipe 130.

[0038] As shown in FIG. 2, the insertion port 102 of the first collective joint 110 on the upper floor side is inserted into the upper end portion (receptacle 131) of the standpipe 130. This connects the first collective joint 110 and the standpipe 130 so that they communicate with each other. At this time, a flexible member 133 (see FIG. 4(a)) is disposed between the insertion port 102 of the first collective joint 110 and the receptacle 131 of the standpipe 130, which improves the sealing performance between the first collective joint 110 and the standpipe 130.

[0039] Furthermore, by disposing the flexible member 133 between the insertion port 102 of the first collective joint 110 and the receiving port 131 of the standpipe 130, it is possible to allow relative movement (swinging) of the standpipe 130 with respect to the first collective joint 110. Specifically, as shown in Fig. 5(b), the lower part of the standpipe 130 can be easily swung around the upper end part of the standpipe 130 (the part connected to the first collective joint 110).

[0040] The joint member 140 shown in Figures 2 and 4(b) can connect and disconnect the first collective joint 110 on the upper floor and the second collective joint 120 on the lower floor. The joint member 140 is made of, for example, a resin material. The joint member 140 is formed in a cylindrical shape with its axis facing up and down. The joint member 140 mainly includes a socket 141, an insertion port 142, a flexible member 143, etc.

[0041] The socket 141 is a portion formed at the upper end of the coupling member 140. The socket 141 is formed so as to open upward. The socket 141 is formed in a shape that allows the lower end (insertion port 132) of the standpipe 130 to be inserted therein. Specifically, the socket 141 is formed so as to have an inner diameter that is slightly larger than the outer diameter of the insertion port 132 of the standpipe 130.

[0042] The insertion port 142 is a portion formed at the lower end of the coupling member 140. The insertion port 142 is formed so as to open downward. The insertion port 142 is formed in a shape that allows it to be inserted into the upper end (receptacle 101) of the collective coupling 100. Specifically, the insertion port 142 is formed so as to have an outer diameter that is slightly smaller than the inner diameter of the receptacle 101 of the collective coupling 100. Note that, in the coupling member 140 according to this embodiment, the outer diameter and inner diameter of the lower end (insertion port 142) are formed to be smaller than the outer diameter and inner diameter of the other portions; however, as long as it can be inserted into the receptacle 101 of the collective coupling 100, for example, the outer diameter of the lower end (insertion port 142) may be formed to be the same as the outer diameter of the other portions.

[0043] The flexible member 143 is a flexible member provided inside the upper end (receptacle 141) of the joint member 140. The flexible member 143 is formed in an annular (ring-like) shape that fits along the inner circumferential surface of the receptacle 141. The flexible member 143 is made of a flexible material such as rubber. As shown in FIG. 4(b), the flexible member 143 is fixed to the inner circumferential surface of the receptacle 141. The flexible member 143 may be prepared as a separate member from the joint member 140.

[0044] As shown in FIG. 2 , the insertion port 132 of the standpipe 130 is inserted into the upper end portion (receptacle 141) of the coupling member 140. With the standpipe 130 inserted, the coupling member 140 can slide up and down along the longitudinal direction (vertical direction) of the standpipe 130. Furthermore, with the coupling member 140 sliding downward, the lower end portion (insertion port 142) of the coupling member 140 is inserted into the socket 101 of the second collective coupling 120 on the lower floor side. This connects the standpipe 130 and the second collective coupling 120 so that they communicate with each other via the coupling member 140. That is, in this state, the first collective coupling 110 on the upper floor side and the second collective coupling 120 on the lower floor side are connected so that they communicate with each other via the standpipe 130 and the coupling member 140. In this case, a flexible member 143 (see Figure 4(b)) is arranged between the insertion port 132 of the stand pipe 130 and the receiving port 141 of the joint member 140, thereby improving the sealing performance between the stand pipe 130 and the joint member 140.

[0045] The band member 150 shown in Fig. 2 is intended to prevent the riser pipe 130 from descending. The band member 150 is a strip-shaped member that can be attached and detached to the outer periphery of the riser pipe 130. The band member 150 can be attached to the riser pipe 130 immediately above the joint member 140. As a result, when the riser pipe 130 attempts to descend relative to the joint member 140, the band member 150 comes into contact with the joint member 140, thereby preventing the riser pipe 130 from descending.

[0046] The suspending device 160 shown in Fig. 2 is intended to prevent the riser pipe 130 from descending. The suspending device 160 can fix the vicinity of the upper end of the riser pipe 130 to the floor slab 3 on the upper floor side. The suspending device 160 is configured to be detachable from the riser pipe 130. The specific configuration of the suspending device 160 is not particularly limited, but it can be configured, for example, by a chain suspended from the floor slab 3, a belt attached to the riser pipe 130, or the like.

[0047] 1 is a pipe for introducing outside air into the standpipe 130. The vent pipe 170 is arranged to connect the collective joint 100 on the top floor to the outside of the apartment building 1.

[0048] The leg joint 180 is a joint for connecting the standpipe 130 and a horizontal pipe 190, which will be described later. The leg joint 180 is connected to the lower end of the standpipe 130 on the lowest floor. In this embodiment, the leg joint 180, rather than the collective joint 100, is connected to the lower end of the standpipe 130 on the lowest floor.

[0049] The horizontal pipe 190 is a pipe for guiding wastewater from each residence 2 to the sewage manhole S. The horizontal pipe 190 is arranged horizontally under the floor of the lowest floor of the apartment building 1. The end of the horizontal pipe 190 is connected to the sewage manhole S. The wastewater guided to the sewage manhole S is guided to the sewer pipe via the sewage manhole S.

[0050] Next, a method for updating (replacing with a new one) the standpipe 130 in the piping structure 10 configured as described above will be described.

[0051] When updating the standpipe 130, first, the band member 150 and the suspender 160 (see FIG. 2) provided on the standpipe 130 are removed.

[0052] 5(a), the coupling member 140 is slid upward along the standpipe 130. As a result, the insertion port 142 of the coupling member 140 is pulled out of the socket 101 of the second collective coupling 120, and the connection between the first collective coupling 110 and the second collective coupling 120 via the standpipe 130 is released.

[0053] Next, as shown in FIG. 5(b), the lower end of the standpipe 130 (joint member 140) is shifted from directly above the second collective joint 120 (the axis of the second collective joint 120). Specifically, the lower end side of the standpipe 130 is swung horizontally around the upper end of the standpipe 130. As described above, the flexible member 133 is provided in the receiving port 131 of the standpipe 130 (see FIG. 4(a)), which allows the standpipe 130 to sway relative to the first collective joint 110, and the standpipe 130 can be swung easily. By swung the standpipe 130, the positions of the lower end of the standpipe 130 and the second collective joint 120 are shifted, and space can be secured below the standpipe 130.

[0054] 5(c), the socket 131 of the standpipe 130 is pulled out from the insertion port 102 of the first collective joint 110. This makes it possible to remove the standpipe 130 and the joint member 140 from between the first collective joint 110 and the second collective joint 120.

[0055] Next, a newly prepared standpipe 130 and coupling member 140 are attached between the first collecting coupling 110 and the second collecting coupling 120. The new standpipe 130 and coupling member 140 can be attached between the first collecting coupling 110 and the second collecting coupling 120 by substantially reversing the procedure for removing the standpipe 130, etc., described above.

[0056] That is, the insertion port 102 of the first collective joint 110 is inserted into the socket 131 of the standpipe 130, which has a joint member 140 at its lower end (see FIG. 5(c)), the center of the lower end of the standpipe 130 (joint member 140) and the center of the second collective joint 120 are aligned (see FIG. 5(b)), and the joint member 140 is slid downward to connect with the second collective joint 120 (see FIG. 5(a)). Thereafter, a band member 150 and a suspender 160 are attached to the standpipe 130 (see FIG. 2). In this manner, the standpipe 130 can be renewed.

[0057] According to the piping structure 10 of this embodiment, the first collective joint 110 and the standpipe 130 are connected by the insertion port 102 and the socket 131, so that the standpipe 130 can be easily attached and detached while tilting the standpipe 130 with respect to the first collective joint 110. In particular, in this embodiment, the flexible member 133 provided on the standpipe 130 can allow movement (swinging) of the standpipe 130 with respect to the first collective joint 110 while improving the sealing performance between the first collective joint 110 and the standpipe 130.

[0058] As described above, the piping structure 10 according to the first embodiment has the following features: A first joint (first collective joint 110) disposed on the upper floor; A second joint (second collective joint 120) disposed on the lower floor; a standpipe 130 connecting the first joint and the second joint; A piping structure 10 including: The first joint has a lower end formed with an insertion port 102, A socket 131 into which the insertion port 102 of the first joint can be inserted is formed at the upper end of the standpipe 130, The standpipe 130 further includes a coupling member 140 that is provided on the standpipe 130 and slides along the longitudinal direction of the standpipe 130, thereby enabling connection and disconnection between the first coupling and the second coupling via the standpipe 130. This configuration can improve the workability of updating the standpipe 130. That is, the standpipe 130 can be easily attached and detached by the joint member 140, which can be connected and disconnected by sliding, and the standpipe 130, which is connected to the first collective joint 110 by the socket 131.

[0059] In addition, the joint member 140 has It is provided at the lower end of the standpipe 130 and is connectable to the second joint. With this configuration, the standpipe 130 can be easily attached to and detached from the second collective joint 120 by sliding the joint member 140 up and down.

[0060] In addition, a socket 101 is formed at the upper end of the second joint, The joint member 140 has a lower end formed with an insertion port 142 that can be inserted into the socket 101 of the second joint. With this configuration, the joint member 140 can be easily attached to and detached from the second collective joint 120 by inserting and removing the joint member 140 into and from the second collective joint 120 .

[0061] In addition, the piping structure 10 is The device further includes a flexible member 133 provided between the first joint and the upper end of the standpipe 130. By configuring it in this way, it is possible to easily swing the standpipe 130 relative to the first collective joint 110, and the standpipe 130 can be easily attached and detached.

[0062] Moreover, the first joint, the second joint, the standpipe 130, and the joint member 140 are made of resin. This construction makes it possible to more effectively prevent corrosion than metal (iron, etc.) materials, and also reduces the weight of each component, improving workability.

[0063] In addition, the piping structure 10 is The standpipe 130 is further provided with a suspender 160 for preventing the standpipe 130 from descending. By configuring in this manner, it is possible to prevent the riser pipe 130 from unintentionally descending and the connection between the first collective joint 110 and the second collective joint 120 from being released.

[0064] Further, the piping renewal method according to the first embodiment is as follows: A method for updating piping in the above piping structure 10, a step of sliding the joint member 140 upward to release the connection with the second joint (see FIG. 5(a)); a step of removing the standpipe 130 from the first joint (see FIG. 5(c)); a step of attaching a new standpipe 130 and a joint member 140 between the first joint and the second joint; It includes: By configuring in this way, the workability of updating the standpipe 130 can be improved.

[0065] A piping structure 20 according to the second embodiment will be described below with reference to FIGS.

[0066] The piping structure 20 according to the second embodiment shown in Fig. 6 mainly differs from the piping structure 10 according to the first embodiment (see Fig. 2, etc.) in that the second embodiment includes a standpipe 230 divided into two (a first standpipe 231 and a second standpipe 232) and a joint member 240 that connects the first standpipe 231 and the second standpipe 232. Below, the configuration will be described focusing on the above differences, and the same components as those in the first embodiment will be denoted by the same reference numerals as those in the first embodiment and will not be described again.

[0067] 6, the standpipe 230 is formed by dividing it into two parts, an upper part and an lower part. Specifically, the standpipe 230 includes a first standpipe 231 and a second standpipe 232 which are divided into upper and lower parts.

[0068] The first standpipe 231 is a portion that is connected to the first collecting joint 110. The first standpipe 231 is formed in a cylindrical shape with its axis oriented vertically. The first standpipe 231 mainly includes a socket 231a, an insertion port 231b, a flexible member (not shown), and the like.

[0069] The socket 231a is formed in the same manner as the socket 131 of the standpipe 130 of the first embodiment. This allows the insertion port 102 of the first collective joint 110 to be inserted into the socket 231a of the first standpipe 231. In addition, a flexible member (not shown) is provided in the socket 231a, similar to the flexible member 133 of the first embodiment (see FIG. 4(a)).

[0070] The insertion port 231b is a portion formed at the lower end of the first vertical pipe 231. The insertion port 231b is formed so as to open downward. The insertion port 231b is formed in a shape that allows it to be inserted into the upper end (upper socket 241) of the coupling member 240, which will be described later. Specifically, the insertion port 231b is formed so as to have an outer diameter that is slightly smaller than the inner diameter of the upper socket 241 of the coupling member 240.

[0071] The second standpipe 232 is disposed below the first standpipe 231 and is the portion that is connected to the second collecting joint 120. The second standpipe 232 is formed in a cylindrical shape with its axis oriented vertically. The second standpipe 232 mainly includes an upper insertion port 232a and a lower insertion port 232b.

[0072] The upper insertion port 232a is a portion formed at the upper end of the second standpipe 232. The upper insertion port 232a is formed so as to open upward. The upper insertion port 232a is formed in a shape that allows it to be inserted into the lower end (lower socket 242) of the coupling member 240, which will be described later. Specifically, the upper insertion port 232a is formed so as to have an outer diameter that is slightly smaller than the inner diameter of the lower socket 242 of the coupling member 240.

[0073] The lower insertion port 232b is a portion formed at the lower end of the second vertical pipe 232. The lower insertion port 232b is formed so as to open downward. The lower insertion port 232b is formed in a shape that allows it to be inserted into the upper end (receptacle 101) of the second collective joint 120. Specifically, the lower insertion port 232b is formed so as to have an outer diameter that is slightly smaller than the inner diameter of the receptacle 101 of the second collective joint 120.

[0074] The coupling member 240 shown in Figures 6 and 7 is capable of connecting and disconnecting the first collective coupling 110 on the upper floor and the second collective coupling 120 on the lower floor. The coupling member 240 is formed, for example, from a resin material. The coupling member 240 is formed in a cylindrical shape with its axis facing up and down. The coupling member 240 mainly comprises an upper socket 241, a lower socket 242, an upper flexible member 243, and a lower flexible member 244.

[0075] The upper socket 241 is a portion formed at the upper end of the joint member 240. The upper socket 241 is formed so as to open upward. The upper socket 241 is formed in a shape that allows the lower end (insertion port 231b) of the first standpipe 231 to be inserted therein. Specifically, the upper socket 241 is formed so as to have an inner diameter that is slightly larger than the outer diameter of the insertion port 231b of the first standpipe 231.

[0076] The lower receiving port 242 is a portion formed at the lower end of the coupling member 240. The lower receiving port 242 is formed so as to open downward. The lower receiving port 242 is formed in a shape that allows the upper end (insertion port 232a) of the second standpipe 232 to be inserted therein. Specifically, the lower receiving port 242 is formed so as to have an inner diameter that is slightly larger than the outer diameter of the insertion port 232a of the second standpipe 232.

[0077] The upper flexible member 243 is a flexible member provided inside the upper end portion (upper socket 241) of the joint member 240. The upper flexible member 243 is formed in an annular (ring-like) shape that fits along the inner circumferential surface of the upper socket 241. The upper flexible member 243 is formed from a flexible material such as rubber. The upper flexible member 243 is fixed to the inner circumferential surface of the upper socket 241. The upper flexible member 243 may be prepared as a separate member from the joint member 240.

[0078] The lower flexible member 244 is a flexible member provided inside the lower end portion (lower socket 242) of the joint member 240. The lower flexible member 244 is formed in an annular (ring-like) shape that fits along the inner circumferential surface of the lower socket 242. The lower flexible member 244 is formed from a flexible material such as rubber. The lower flexible member 244 is fixed to the inner circumferential surface of the lower socket 242. The lower flexible member 244 may be prepared as a separate member from the joint member 240.

[0079] In the piping structure 20 configured as described above, as shown in Fig. 6 , the spigot 102 of the first collective joint 110 is inserted into the socket 231a of the first standpipe 231. This connects the first standpipe 231 to the first collective joint 110. The first standpipe 231 is arranged to extend downward from the first collective joint 110.

[0080] Additionally, the lower insertion port 232b of the second standpipe 232 is inserted into the socket 101 of the second collecting joint 120. This connects the second standpipe 232 to the second collecting joint 120. The second standpipe 232 is disposed so as to extend upward from the second collecting joint 120.

[0081] Furthermore, the insertion port 231b of the first standpipe 231 and the upper insertion port 232a of the second standpipe 232 are inserted into the upper socket 241 and the lower socket 242 of the coupling member 240, respectively. In this manner, the first standpipe 231 and the second standpipe 232 are connected by the coupling member 240. Note that a band member 150 similar to that in the first embodiment may be provided on the second standpipe 232 immediately below the coupling member 240. This makes it possible to prevent the coupling member 240 from descending.

[0082] Next, a method for updating (replacing with a new one) the standpipe 230 in the piping structure 20 configured as described above will be described.

[0083] When updating the standpipe 230, first, the suspending tool 160 (see FIG. 6) provided on the standpipe 230 (first standpipe 231) is removed.

[0084] 8(a), the coupling member 240 is slid upward along the first standpipe 231. As a result, the lower socket 242 of the coupling member 240 is pulled out from the insertion port 232a of the second standpipe 232, and the connection between the first collective coupling 110 and the second collective coupling 120 via the standpipe 230 is released.

[0085] Next, as shown in FIG. 8(b), the lower end of the first standpipe 231 (joint member 240) is shifted from directly above the second standpipe 232 (the axis of the second standpipe 232). Specifically, the lower end side of the first standpipe 231 is swung horizontally around the upper end of the first standpipe 231. As described above, a flexible member is provided in the receiving port 231a of the first standpipe 231, so that the first standpipe 231 is allowed to sway relative to the first collective joint 110, and the first standpipe 231 can be easily swung. By swung the first standpipe 231, the positions of the lower end of the first standpipe 231 and the upper end of the second standpipe 232 are shifted, and space can be secured below the first standpipe 231.

[0086] Next, as shown in FIG. 8(c), the socket 231a of the first standpipe 231 is pulled out from the insertion port 102 of the first collecting joint 110. In addition, the lower insertion port 232b of the second standpipe 232 is pulled out from the insertion port 101 of the second collecting joint 120. This makes it possible to remove the standpipe 230 (the first standpipe 231 and the second standpipe 232) and the joint member 240 from between the first collecting joint 110 and the second collecting joint 120.

[0087] Next, newly prepared standpipes 230 (first standpipe 231 and second standpipe 232) and the joint member 240 are attached between the first collecting joint 110 and the second collecting joint 120. The new standpipe 230 and the joint member 240 can be attached between the first collecting joint 110 and the second collecting joint 120 by substantially reversing the procedure for removing the standpipes 230, etc. described above.

[0088] That is, the insertion port 102 of the first collecting joint 110 is inserted into the socket 231a of the first standing pipe 231, which has a joint member 240 at its lower end (see FIG. 8(c)), the lower insertion port 232b of the second standing pipe 232 is inserted into the socket 101 of the second collecting joint 120 (see FIG. 8(c)), the lower end of the first standing pipe 231 (joint member 240) and the center of the second standing pipe 232 are aligned (see FIG. 8(b)), and the joint member 240 is slid downward to connect to the second standing pipe 232 (see FIG. 8(a)). Then, a hanging tool 160 is attached to the first standing pipe 231 (see FIG. 6). In this manner, the standing pipe 230 can be renewed.

[0089] According to the piping structure 20 of this embodiment, the first collective joint 110 and the first vertical pipe 231 are connected by the insertion port 102 and the receiving port 231a, so that the first vertical pipe 231 can be easily attached and detached by tilting the first vertical pipe 231 relative to the first collective joint 110.

[0090] As described above, in the piping structure 20 according to the second embodiment, The standpipe 230 is The pipe is divided into a first standpipe 231 connected to the first joint (first collecting joint 110) and a second standpipe 232 connected to the second joint (second collecting joint 120), The coupling member 240 is The first standpipe 231 and the second standpipe 232 can be connected to each other. By configuring in this way, by dividing the standpipe 230, it is possible to reduce the size of each standpipe, thereby improving workability.

[0091] In addition, a socket 101 is formed at the upper end of the second joint, The second vertical pipe 232 has a lower end formed with an insertion port (lower insertion port 232b) that can be inserted into the socket 101 of the second joint. With this configuration, the second standpipe 232 can be connected to the second collecting joint 120 by the socket 101, and the standpipe 230 can be easily attached and detached.

[0092] Further, the piping renewal method according to the second embodiment is as follows: A method for updating piping in the piping structure 20, a step of sliding the joint member 240 upward or downward to release the connection between the first standpipe 231 and the second standpipe 232; removing the first standpipe 231 from the first joint; removing the second standpipe 232 from the second joint; a step of attaching a new first standpipe 231, a second standpipe 232, and a joint member 240 between the first joint and the second joint; It includes: By configuring in this way, the workability of updating the standpipe 230 can be improved.

[0093] A piping structure 20 according to the third embodiment will be described below with reference to FIG.

[0094] The piping structure 30 of the third embodiment shown in Figure 9 mainly differs from the piping structure 20 of the second embodiment (see Figure 6, etc.) in that it has a vertical pipe 330 divided into three (a first vertical pipe 331, a second vertical pipe 332, and a third vertical pipe 333), and that it has two joint members 340 that connect the three vertical pipes 330.

[0095] In this way, the stand pipe 330 can be divided into any number of sections. The joint member 340 is provided so as to be slidable relative to the stand pipe 330. By sliding the joint member 340, the stand pipes 330 can be connected to each other or disconnected from each other. The configuration of the joint member 340 is similar to that of the joint member 240 according to the second embodiment, and therefore a description thereof will be omitted.

[0096] As described above, in the piping structure 30 according to the third embodiment, The standpipe 330 is It is formed by dividing into three or more parts, The coupling member 340 is A plurality of the divided standpipes 330 are provided so that they can be connected to each other. With this configuration, by dividing the standpipe 330, it is possible to reduce the size of each standpipe, thereby improving workability.

[0097] The first collective joint 110 and the second collective joint 120 according to this embodiment are one embodiment of the first joint and the second joint according to the present invention.

[0098] Although the embodiment of the present invention has been described above, the present invention is not limited to the above configuration, and various modifications are possible within the scope of the invention described in the claims.

[0099] For example, in the above embodiment, a standpipe connecting the collection joints 100 (first collection joint 110 and second collection joint 120) provided on the upper and lower floors has been described as an example of one embodiment of the present invention, but the type of joint to which the standpipe is connected is not limited to this. For example, the present invention can also be applied to a configuration in which a standpipe is connected to a leg joint 180 provided on the lowest floor, as shown in Figure 1.

[0100] Furthermore, in the above embodiment, an example was shown in which the standpipe 130, etc. were formed from a resin material, but the present invention is not limited to this, and the material of the standpipe 130, etc. can be changed as desired, for example to a metal material.

[0101] Furthermore, in the above-described second embodiment (see FIG. 8 ) and the like, an example has been shown in which the coupling member 240 is slid upward to release the connection between the first collective joint 110 and the second collective joint 120, but there are no particular limitations on the sliding direction of the coupling member 240. For example, it is also possible to release the connection between the first collective joint 110 and the second collective joint 120 by sliding the coupling member 240 downward. [Explanation of symbols]

[0102] 10 Piping structure 100 Collective Joint 101 Underbite 102 Insertion port 110 First collective joint 120 Second collection joint 130 Standpipe 131 Underbite 132 Insertion port 133 Flexible Member 140 Joint members 141 Underbite 142 Insertion port 160 Lifting equipment

Claims

1. a first joint disposed on the upper floor; a second joint located on the lower floor; a standpipe connecting the first joint and the second joint; A piping structure including: A spigot is formed at a lower end of the first joint, a receiving port into which the spigot of the first joint can be inserted is formed at an upper end of the standpipe; Further provided is a coupling member that is provided on the standpipe and can connect and disconnect the first coupling and the second coupling via the standpipe by sliding along the longitudinal direction of the standpipe, The coupling member is The second joint is provided at the lower end of the standpipe and is connectable to the second joint; a socket is formed at an upper end of the second joint; a lower end of the coupling member is formed with an insertion port that can be inserted into the socket of the second coupling; The coupling member is The standpipe and the second joint can be connected in a state where a gap is provided between the lower end of the standpipe and the upper end of the second joint. Piping structure.

2. The pipe further comprises a flexible member provided between the first joint and the upper end of the vertical pipe. The piping structure according to claim 1 .

3. The first joint, the second joint, the vertical pipe, and the joint member are made of resin. The piping structure according to claim 1 .

4. Further provided with a hanging device that prevents the vertical pipe from descending. The piping structure according to claim 1 .

5. A method for updating piping in the piping structure described in claim 1, comprising: Sliding the coupling member upward to release the connection with the second coupling; removing the standpipe from the first joint; Installing a new standpipe and a joint member between the first joint and the second joint; Including, How to update your piping.

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