Connection member for temporary toilet, connection member set for temporary toilet, and sewage discharge system

Abstract

To provide a connection member for a temporary toilet capable of connecting a plurality of temporary toilets.SOLUTION: A connection member 70 for a temporary toilet is detachably mounted in a vertical pipe 11 connected to a discharge line 13 through which sewage is discharged, and is a connection member to which a sewage discharge pipe 5 connected to the temporary toilet 4 is connected. The connection member 70 for a temporary toilet comprises a connection main body 71 formed with a plurality of end connections 75 through which sewage discharge pipes 5 connected to temporary toilets 4 can be connected.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a connecting member for a temporary toilet, a connecting member set for a temporary toilet, and a wastewater drainage system. [Background technology]

[0002] For example, Patent Document 1 discloses a cover for an underground structure for installing a temporary toilet. The cover for an underground structure is a cover that can be connected to a toilet bowl via a cylindrical adapter when installing a temporary toilet in a manhole for a sewer system. The cover for an underground structure includes a parent cover with an opening formed therein and a child cover that fits into the opening. The parent cover is provided with a cylindrical portion that extends downward from the edge of the opening.

[0003] When connecting a temporary toilet bowl to a cover for an underground structure, the child cover is removed from the parent cover and a cylindrical adapter is fitted into the cylindrical portion through the opening of the parent cover. At this time, the adapter is positioned so that it protrudes upward from the parent cover. In this state, the temporary toilet bowl is connected to the upper end of the adapter. As a result, wastewater such as feces discharged into the temporary toilet flows through the adapter into the manhole and is discharged into the sewer system. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 11-343629 Summary of the Invention [Problem to be solved by the invention]

[0005] However, the underground structure cover disclosed in Patent Document 1 was connected to only one temporary toilet. Therefore, it was not possible to install more temporary toilets than the number of underground structure covers.

[0006] The present invention has been made in consideration of the above points, and its object is to provide a temporary toilet connection member, a temporary toilet connection member set, and a wastewater drainage system that can connect many temporary toilets. [Means for solving the problem]

[0007] Conventionally, one temporary toilet has been installed for one manhole, and there has been no technical idea of ​​installing multiple temporary toilets, such as the underground structure cover disclosed in the above-mentioned Patent Document 1. Therefore, the problem of connecting many temporary toilets to one manhole is itself new, and in order to solve such a new problem, the applicant of the present application provides the temporary toilet connection member, temporary toilet connection member set, and wastewater discharge system disclosed herein.

[0008] The temporary toilet connection member according to the present invention is a temporary toilet connection member that is detachable within a standpipe that is connected to a drainage pipeline through which sewage is discharged, and to which a sewage drain pipe that is connected to a temporary toilet is connected. The temporary toilet connection member includes a connection body that is formed so that a plurality of connection ports that can be connected to the sewage drain pipe that is connected to the temporary toilet pass through it.

[0009] According to the temporary toilet connection member, a plurality of connection ports are formed in the connection body. Therefore, a sewage discharge pipe leading to a temporary toilet can be connected to each of the plurality of connection ports. Therefore, it is possible to connect as many temporary toilets as there are connection ports to the temporary toilet connection member. Therefore, many temporary toilets can be connected to one temporary toilet connection member.

[0010] According to a preferred aspect of the present invention, the temporary toilet connection member is provided with a cylindrical cap that is attached to the connection port, has a cap insertion hole into which the sewage drain pipe is fitted, and is made of an elastic material.

[0011] According to the above aspect, by fitting the sewage drain pipe into the cap made of an elastic material, it is possible to improve the adhesion between the sewage drain pipe and the cap, and therefore, when the sewage drain pipe is connected to the connection port, it is possible to make it difficult for sewage to leak between the sewage drain pipe and the cap.

[0012] According to another preferred aspect of the present invention, the temporary toilet connection member has a claw portion that protrudes from the edge of the connection port into the connection port when viewed in a plan view and is capable of coming into contact with the tip of the sewage drain pipe.

[0013] According to the above aspect, when the sewage discharge pipe is connected to the connection port, the sewage discharge pipe comes into contact with the claw portion, so that the claw portion can restrict the movement of the sewage discharge pipe, thereby preventing the sewage discharge pipe from being pushed beyond the claw portion into the connection port.

[0014] According to another preferred embodiment of the present invention, a plurality of the claw portions are provided for each of the connection ports, and in plan view, the portions of the plurality of the claw portions protruding into the connection port are spaced apart from each other.

[0015] If the multiple claw portions protruding into the connection port were not spaced apart, wastewater and other contaminants would easily get caught on the claw portions. However, according to the above-described aspect, wastewater discharged from the temporary toilet passes through the gaps between the multiple claw portions and is discharged through the wastewater discharge pipe. Here, because the multiple claw portions protruding into the connection port are spaced apart, wastewater contained in the wastewater is less likely to get caught on the claw portions and can pass through the gaps between the multiple claw portions and be discharged.

[0016] According to another preferred aspect of the present invention, the sewage drain pipe is selectively connected to the plurality of connection ports. The temporary toilet connection member includes a connection cover that is attached to the connection port to which the sewage drain pipe is not connected and closes the connection port to which the sewage drain pipe is not connected.

[0017] For example, since the connection port to which the sewage discharge pipe is not connected is open, the foul odor generated in the discharge pipeline may leak to the outside through the connection port to which the sewage discharge pipe is not connected. However, according to the above-mentioned embodiment, the connection port to which the sewage discharge pipe is not connected is fitted with a connection cover, so that the connection port can be closed. Therefore, it is possible to prevent the foul odor generated in the discharge pipeline from leaking to the outside through the connection port to which the sewage discharge pipe is not connected.

[0018] The temporary toilet connection member set according to the present invention includes a lid attached to a lid frame provided at the upper end of the standpipe, and any one of the temporary toilet connection members described above. The lid includes a parent lid having a parent lid body that fits into the lid frame and has a fitting hole that penetrates vertically, and a child lid that fits into the fitting hole. The temporary toilet connection member is configured to be attached to the parent lid.

[0019] According to the temporary toilet connection member set, the temporary toilet connection member can be placed in the standpipe by attaching the parent lid to the lid frame provided at the upper end of the standpipe. Also, the temporary toilet connection member can be removed from the standpipe by removing the parent lid from the lid frame. Therefore, the temporary toilet connection member can be attached and detached from the standpipe in conjunction with the attachment and detachment of the parent lid to the lid frame.

[0020] According to a preferred embodiment of the present invention, the parent lid has a parent lid tubular portion extending downward from the parent lid main body. The temporary toilet connection member is configured to fit into the parent lid tubular portion.

[0021] According to the above aspect, with a simple configuration of fitting the temporary toilet connecting member into the parent lid cylindrical portion of the parent lid, the temporary toilet connecting member can be positioned within the standpipe while the position of the temporary toilet connecting member relative to the standpipe can be fixed.

[0022] According to another preferred aspect of the present invention, the temporary toilet connection member set is provided with an odor control valve mechanism having an odor control valve that opens and closes the parent tubular portion.

[0023] According to the above aspect, by closing the parent tubular lid portion with the odor prevention valve of the odor prevention valve mechanism, it is possible to make it difficult for bad odors generated in the exhaust pipeline to leak to the outside through the parent tubular lid portion.

[0024] The sewage drainage system of the present invention comprises the above-mentioned temporary toilet connection member set, a drain pipeline through which sewage is drained, a standpipe connected to the drain pipeline, the temporary toilet, and a sewage drain pipe that is connected to the temporary toilet and is selectively connected to any one of the multiple connection ports of the temporary toilet connection member.

[0025] According to the wastewater drainage system, it is possible to provide a wastewater drainage system including the above-mentioned temporary toilet connection member set. Effect of the Invention

[0026] According to the present invention, it is possible to provide a temporary toilet connection member, a temporary toilet connection member set, and a wastewater drainage system that are capable of connecting many temporary toilets. [Brief description of the drawings]

[0027] [Figure 1] FIG. 1 is a front view showing a schematic diagram of a wastewater discharge system according to an embodiment. [Diagram 2] FIG. 2 is a plan view showing the lid fitted into the lid frame. [Diagram 3] 3 is a cross-sectional view showing the cover and the odor prevention valve mechanism taken along the line III-III in FIG. 2. [Figure 4] 4 is a cross-sectional view showing the cover, the odor prevention valve mechanism, and the temporary toilet connecting member taken along the line IV-IV in FIG. 2. [Diagram 5] FIG. 4 is a bottom view of the connecting tubular part of the anti-odor valve mechanism. [Figure 6] FIG. [Figure 7] FIG. 4 is a view equivalent to FIG. 3, showing the state in which the odor control valve of the odor control valve mechanism is open. [Figure 8]FIG. [Figure 9] FIG. [Figure 10] FIG. [Figure 11] 10 is a cross-sectional view of the connection member taken along line XI-XI of FIG. 9. [Figure 12] 10 is a cross-sectional view of the connection member taken along the line XII-XII in FIG. 9. [Figure 13] FIG. [Figure 14] FIG. 5 is a view equivalent to FIG. 4, showing a state in which a sewage discharge pipe is connected to the first connection port and the second connection port. [Figure 15] FIG. 5 is a view equivalent to FIG. 4, showing a state in which a sewage discharge pipe is connected to the first connection port and a connection cover is attached to the second connection port. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0028] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. Of course, the embodiment described here is not intended to limit the present invention in particular. In the following drawings, the same reference numerals are used for members and parts that perform the same functions, and duplicated descriptions are omitted or simplified as appropriate.

[0029] Fig. 1 is a front view showing a schematic diagram of a wastewater discharge system 1 according to this embodiment. As shown in Fig. 1, the wastewater discharge system 1 according to this embodiment is used as a system connected to a temporary toilet 4 during a disaster such as an earthquake. Here, wastewater such as urine and feces discharged from the temporary toilet 4 is discharged into a sewer main pipe (not shown) or the like. The wastewater discharge system 1 includes the temporary toilet 4, a wastewater discharge pipe 5, a pipeline 10, and a temporary toilet connection member set 100.

[0030] The temporary toilet 4 is a toilet used in the event of an earthquake or other disaster, and is mainly temporarily installed in evacuation sites such as parks and schools. In this embodiment, the temporary toilet 4 is a toilet for discharging urine. Here, the temporary toilet 4 is a toilet for male users to discharge urine while standing. The temporary toilet 4 is different from a toilet for users to discharge urine and feces while sitting. The temporary toilet 4 has a so-called urinal 4a for discharging urine.

[0031] However, the temporary toilet 4 may be a toilet for a user to discharge urine and feces while sitting. In other words, the temporary toilet 4 may have a so-called toilet bowl for discharging urine and feces.

[0032] The sewage drain pipe 5 is a pipe leading to the temporary toilet 4, and is connected to the urinal 4a of the temporary toilet 4. Sewage such as urine discharged from the temporary toilet 4 flows through the sewage drain pipe 5. In this embodiment, as described above, the temporary toilet 4 is a toilet for discharging urine, so it is assumed that mainly urine flows through the sewage drain pipe 5, and that waste such as feces does not flow through it. The sewage drain pipe 5 has a smaller diameter than a pipe connected to a so-called toilet bowl.

[0033] The type of sewage drain pipe 5 is not particularly limited, and it is preferable that the sewage drain pipe 5 is one through which urine can easily flow. In this embodiment, the sewage drain pipe 5 is, for example, a hose. Although not shown, the sewage drain pipe 5 is a bellows-shaped hose. Here, since urine contained in sewage mainly flows through the sewage drain pipe 5, even a bellows-shaped hose can smoothly drain sewage. In this embodiment, at least a portion of the sewage drain pipe 5 is arranged horizontally along the ground surface GL. Here, at least a portion of the sewage drain pipe 5 is arranged above the ground surface GL.

[0034] The pipeline 10 discharges wastewater into a main sewer pipe (not shown). As shown in FIG. 1, the pipeline 10 is buried in the ground. The configuration of the pipeline 10 is not particularly limited. In this embodiment, the pipeline 10 has a standpipe 11, a cover frame 12, and a discharge pipeline 13. The standpipe 11 is buried in the ground and extends vertically. The standpipe 11 is, for example, a manhole or a manhole standpipe.

[0035] The discharge pipeline 13 is connected to the standpipe 11. The discharge pipeline 13 is, for example, a horizontal pipeline, and is connected to a main sewer pipe (not shown). Wastewater flowing from the temporary toilets 4 to the standpipe 11 is discharged into the main sewer pipe through the discharge pipeline 13. Here, the standpipe 11 is in communication with the discharge pipeline 13, and extends upward from the discharge pipeline 13. The discharge pipeline 13 is composed of, for example, a plurality of pipes and a plurality of joints connecting the plurality of pipes.

[0036] Fig. 2 is a plan view showing the lid 20 fitted into the lid frame 12. Fig. 3 is a cross-sectional view showing the lid 20 and the odor prevention valve mechanism 40 in the III-III cross section of Fig. 2. As shown in Fig. 3, the lid frame 12 is provided at the upper end of the standpipe 11 and fitted into the standpipe 11. In this embodiment, the lid frame 12 has a frame tube portion 12a that is fitted into the standpipe 11, and a lid fitting portion 12b that extends upward from the frame tube portion 12a and into which the lid 20 is detachably fitted.

[0037] Fig. 4 is a cross-sectional view showing the cover 20, the anti-odor valve mechanism 40, and the temporary toilet connection member 70 in the IV-IV cross section of Fig. 2. As shown in Fig. 4, the temporary toilet connection member set 100 (hereinafter also referred to as the connection member set 100) is for connecting the temporary toilet 4 (see Fig. 1) to the standpipe 11. In this embodiment, the connection member set 100 includes the cover 20, the anti-odor valve mechanism 40, and the temporary toilet connection member 70 (hereinafter also referred to as the connection member 70). Note that the connection member 70 is not shown in Fig. 3.

[0038] As shown in Fig. 3, the lid 20 is provided on the pipeline 10 buried in the ground. Here, the lid 20 includes a main lid 21 and a sub lid 22 as shown in Fig. 2.

[0039] As shown in FIG. 3, the parent lid 21 is directly fitted to the lid fitting portion 12b of the lid frame 12. The parent lid 21 has a parent lid main body 31 and a parent lid tubular portion 32. The parent lid main body 31 is a portion that fits into the lid frame 12 (specifically, the lid fitting portion 12b of the lid frame 12). The parent lid main body 31 has a fitting hole 33 that penetrates from top to bottom. The shape of the fitting hole 33 is not particularly limited, but as shown in FIG. 2, it is, for example, circular. In this embodiment, the fitting hole 33 is formed in the center of the parent lid main body 31 in a plan view, but the position where the fitting hole 33 is formed is not particularly limited. As shown in FIG. 3, the parent lid main body 31 is provided with an annular seal member 34 that comes into contact with the lid frame 12 when the parent lid 21 is fitted into the lid frame 12. The type of the seal member 34 is not particularly limited, but it is, for example, rubber. The sealing member 34 improves the sealing performance when the parent lid 21 is fitted into the lid frame 12.

[0040] The parent lid tubular part 32 is a cylinder extending downward from the parent lid main body 31. The parent lid tubular part 32 is provided on the parent lid main body 31 so as to surround the fitting hole 33 in a bottom view. In this embodiment, the parent lid tubular part 32 extends downward from the edge of the fitting hole 33 in the parent lid main body 31. The parent lid tubular part 32 may have one or more slits extending vertically. In this embodiment, the parent lid main body 31 and the parent lid tubular part 32 are integrally molded, but may be separate bodies.

[0041] The child lid 22 is a lid that fits into a fitting hole 33 formed in the parent lid body 31 of the parent lid 21. As shown in FIG. 2, the child lid 22 has a shape corresponding to the fitting hole 33, and is disk-shaped in this case. As shown in FIG. 3, the child lid 22 is provided with an annular seal member 35 that comes into contact with the parent lid body 31 when the child lid 22 is fitted into the parent lid 21. The seal member 35 is made of rubber, for example, but the type of the seal member 35 is not particularly limited. The seal member 35 improves the sealing performance when the child lid 22 is fitted into the parent lid 21.

[0042] Next, the odor prevention valve mechanism 40 will be described. The odor prevention valve mechanism 40 is a mechanism that suppresses the leakage of odors and the like in the pipeline 10 to the outside. Here, the odor prevention valve mechanism 40 is provided in the standpipe 11 of the pipeline 10, and suppresses the leakage of odors and the like to the outside through the standpipe 11. In this embodiment, the odor prevention valve mechanism 40 is attached to the parent lid 21 of the lid 20. Therefore, the odor prevention valve mechanism 40 can be disposed in the standpipe 11 by fitting the parent lid 21 to the lid frame 12. In addition, the odor prevention valve mechanism 40 can be removed from the standpipe 11 by removing the parent lid 21 from the lid frame 12. The configuration of the odor prevention valve mechanism 40 is not particularly limited. In this embodiment, as shown in FIG. 3, the odor prevention valve mechanism 40 has a connecting tubular portion 41, an odor prevention valve 42, and a seal member 43.

[0043] The connecting tubular portion 41 is attached to the parent lid tubular portion 32 of the parent lid 21. Here, the connecting tubular portion 41 extends downward from the parent lid tubular portion 32. The connecting tubular portion 41 has a connecting fitting portion 51 that fits into the parent lid tubular portion 32, a connecting vertical portion 52 that extends downward from the connecting fitting portion 51, and a flange 53. In this embodiment, when the parent lid tubular portion 32 and the connecting fitting portion 51 are fitted together, the parent lid tubular portion 32 is a socket, and the connecting fitting portion 51 is a spigot. However, the parent lid tubular portion 32 may be a spigot, and the connecting fitting portion 51 may be a socket.

[0044] In this embodiment, the inner diameter of the connection vertical part 52 is smaller than the inner diameter of the connection fitting part 51. Therefore, a step part 55 is provided between the connection fitting part 51 and the connection vertical part 52. Also, in this embodiment, an inclined surface 56 that inclines downwardly toward the inside in the radial direction of the connection tubular part 41 is formed in part of the upper part of the connection vertical part 52. Therefore, the inner diameter and outer diameter of the upper end of the connection vertical part 52 are larger than the inner diameter and outer diameter of the lower end of the connection vertical part 52, respectively.

[0045] 3, the flange 53 extends from the connection vertical portion 52 toward the radially outward side of the connection tubular portion 41. In this embodiment, the flange 53 extends from the upper end of the connection vertical portion 52 (in other words, the lower end of the connection fitting portion 51) toward the radially outward side of the connection tubular portion 41. However, the position of the flange 53 is not particularly limited. When the connection tubular portion 41 is fitted into the parent lid tubular portion 32 from below, the lower end of the parent lid tubular portion 32 comes into contact with the flange 53.

[0046] 3, the odor prevention valve 42 is provided in the connecting tubular part 41 so as to be able to open and close the opening on the lower side of the connecting tubular part 41. Here, the odor prevention valve 42 is configured to open and close the parent lid tubular part 32 by opening and closing the connecting tubular part 41. In this embodiment, the odor prevention valve 42 is provided at the lower end of the connecting vertical part 52 of the connecting tubular part 41. The odor prevention valve 42 has an arm 61, a support shaft 62, a valve body 63, and a weight 64.

[0047] The arm 61 is provided on the outer circumferential surface of the connection vertical portion 52 of the connection tubular portion 41. FIG. 5 is a bottom view of the connection tubular portion 41. In this embodiment, as shown in FIG. 5, there are two arms 61, and the two arms 61 face each other across a straight line L1 (here, a straight line L1 extending in the left-right direction) passing through the center C1 of the connection tubular portion 41 in a bottom view. However, the number of arms 61 is not particularly limited, and may be one. The support shaft 62 is supported by the arm 61 and extends in a direction (here, the front-rear direction) perpendicular to the axial direction (here, the up-down direction) of the connection tubular portion 41. Here, the support shaft 62 is bridged between the two arms 61.

[0048] 3, the valve body 63 can be attached to the lower end of the connecting tubular part 41 (in other words, the lower end of the connecting vertical part 52). The valve body 63 is configured to open and close the lower opening of the connecting vertical part 52 of the connecting tubular part 41 from below. The valve body 63 is supported by a support shaft 62, and is supported by the arm 61 via the support shaft 62 so as to be able to swing.

[0049] The shape of the valve body 63 is not particularly limited. In this embodiment, as shown in FIG. 3, the valve body 63 is shaped like a vessel that opens upward. More specifically, the valve body 63 includes a closing plate portion 63c and an enclosing portion 63b. When the valve body 63 is attached to the lower end of the connecting cylindrical portion 41, the closing plate portion 63c closes the connecting cylindrical portion 41 (more specifically, the connecting vertical portion 52). The closing plate portion 63c is plate-shaped. When the valve body 63 is attached to the lower end of the connecting cylindrical portion 41, the enclosing portion 63b extends at least upward from the edge of the closing plate portion 63c. In this embodiment, the enclosing portion 63b extends obliquely upward from the edge of the closing plate portion 63c and in a direction away from the closing plate portion 63c.

[0050] Fig. 6 is a plan view of the valve body 63. As shown in Fig. 3 and Fig. 6, the valve body 63 is provided with an attachment portion 63a extending toward the opposite side (the right side in Fig. 6) to the connecting tubular portion 41 (see Fig. 3) with respect to the axis 62a of the support shaft 62.

[0051] As shown in Fig. 3, the weight 64 is disposed on the opposite side to the valve body 63 with respect to the axis 62a of the support shaft 62, and is supported by the arm 61 via the support shaft 62 so as to be able to swing. In Fig. 3, the valve body 63 is disposed on the left side of the axis 62a, and the weight 64 is disposed on the right side of the axis 62a. Here, the weight 64 is attached so as to be attachable to the mounting portion 63a of the valve body 63, and is fixed to the mounting portion 63a by a bolt 66 and a washer 67. In this embodiment, the valve body 63 and the weight 64 are separate bodies, but the valve body 63 and the weight 64 may be integrally molded.

[0052] FIG. 7 is a diagram equivalent to FIG. 3, and shows a state in which the odor prevention valve 42 of the odor prevention valve mechanism 40 is open. Note that the sub-lid 22 is omitted from FIG. 7. In this embodiment, the weight of the weight of the weight 64 is greater than the weight of the valve body 63. Therefore, for example, when water such as sewage does not accumulate on the valve body 63, an upward force acts on the valve body 63 around the axis 62a. Therefore, as shown in FIG. 3, the valve body 63 is in a closed state. On the other hand, for example, when water such as sewage accumulates on the valve body 63 and the weight of the water and the valve body 63 becomes greater than the weight of the weight 64, a downward force acts on the valve body 63 around the axis 62a. As a result, the valve body 63 rotates downward around the axis 62a, so that the valve body 63 is opened as shown in FIG. 7. In this embodiment, when sewage is not discharged into the pipeline 10 through the standpipe 11, the connecting tubular portion 41 is closed by the valve body 63 as shown in FIG. 3. Therefore, bad odors and the like generated within the pipeline 10 are less likely to leak to the outside through the standpipe 11.

[0053] The seal member 43 is provided between the connecting tubular part 41 and the valve body 63 when the valve body 63 is attached to the lower end of the connecting tubular part 41. The seal member 43 is provided in the connecting tubular part 41 and contacts the valve body 63. In detail, the seal member 43 is attached to a part of the connecting tubular part 41 that can contact the valve body 63 of the odor prevention valve 42 (here, the lower end of the connecting vertical part 52). When the valve body 63 is closed, the seal member 43 is interposed between the valve body 63 and the connecting tubular part 41. This seal member 43 improves the sealing property when the valve body 63 is closed. The type of the seal member 43 is not particularly limited, but is, for example, a ring-shaped rubber as shown in FIG. 5. The seal member 43 can be omitted. The seal member 43 may be attached to the valve body 63. In this case, the seal member 43 is provided in the valve body 63 and contacts the connecting tubular part 41.

[0054] Next, the connection member 70 (see FIG. 1) according to this embodiment will be described. As shown in FIG. 1, the connection member 70 is detachable from the standpipe 11 connected to the discharge pipe 13 from which wastewater is discharged, and is a member to which the wastewater discharge pipe 5 connected to the temporary toilet 4 is connected. As shown in FIG. 4, the connection member 70 is provided in the standpipe 11, and its position is fixed in the standpipe 11. In this embodiment, the connection member 70 is attached to the parent cover 21 of the cover 20 (specifically, the inner peripheral surface of the parent cover tubular portion 32). As described above, the connection fitting portion 51 of the connection tubular portion 41 of the anti-odor valve mechanism 40 is fitted into the parent cover tubular portion 32, and a step portion 55 is provided between the connection fitting portion 51 and the connection vertical portion 52. The connection member 70 is supported by the connection tubular portion 41 of the anti-odor valve mechanism 40. More specifically, the connection member 70 is placed on the step portion 55 between the connection fitting portion 51 and the connection vertical portion 52, and is fitted into the connection fitting portion 51. Therefore, the connection member 70 is detachably attached to the parent lid tubular portion 32 of the parent lid 21 via the connection tubular portion 41 of the odor prevention valve mechanism 40.

[0055] Figures 8, 9, and 10 are respectively a perspective view, a plan view, and a bottom view of the connection member 70. Figure 11 is a cross-sectional view of the connection member 70 taken along line XI-XI in Figure 9. Figure 12 is a cross-sectional view of the connection member 70 taken along line XII-XII in Figure 9. In this embodiment, as shown in Figure 8, the connection member 70 includes a connection body 71 and a cap 80.

[0056] As shown in FIG. 4, the connection body 71 is directly supported by the connection tubular portion 41 of the anti-odor valve mechanism 40. The connection body 71 contacts the step portion 55 in the connection tubular portion 41 and is placed on the step portion 55. The connection body 71 fits into the connection fitting portion 51. The shape of the connection body 71 is not particularly limited. In this embodiment, the connection body 71 has a shape corresponding to the inner circumferential surface of the stand pipe 11, the fitting hole 33 of the parent lid 21, or the inner circumferential surface of the connection tubular portion 41 of the anti-odor valve mechanism 40, for example, in a plan view. Here, as shown in FIG. 9, the connection body 71 has a circular shape in a plan view and a disk-like shape.

[0057] In this embodiment, as shown in Fig. 12, the connection body 71 has a body plate portion 72 and a body tube portion 73. The body plate portion 72 is plate-shaped. As shown in Fig. 9, the body plate portion 72 is circular in a plan view. As shown in Fig. 12, the body tube portion 73 extends downward from the body plate portion 72 and is tubular. Here, the body tube portion 73 extends downward from a radial edge of the body plate portion 72.

[0058] In this embodiment, a rod-shaped portion 74 extending downward is provided on the bottom surface of the main body plate portion 72. The rod-shaped portion 74 is for increasing the rigidity of the connection main body 71 and reinforcing the connection main body 71. The lower end of the rod-shaped portion 74 is at the same height as the lower end of the main body tube portion 73. As shown in FIG. 10, the rod-shaped portion 74 is disposed inside the main body tube portion 73. Here, a plurality of rod-shaped portions 74 are disposed along the inner peripheral surface of the main body tube portion 73. In this embodiment, the number of rod-shaped portions 74 is four, but is not particularly limited. In this embodiment, the rod-shaped portion 74 is cylindrical. The connection main body 71 is molded by pouring resin into a mold for the connection main body 71 during molding. The rod-shaped portion 74 can be a passage through which resin is poured when the connection main body 71 is molded.

[0059] As shown in FIG. 11, a plurality of connection ports 75 are formed in the connection body 71. A sewage discharge pipe 5 (see FIG. 1) connected to the temporary toilet 4 can be connected to the connection port 75. Here, the sewage discharge pipe 5 can be inserted into the connection port 75. In this embodiment, the number of connection ports 75 formed in the connection body 71 is two. However, the number of connection ports 75 formed in the connection body 71 may be more than one, for example, three or more. Here, one of the two connection ports 75 is referred to as a first connection port 75A, and the other connection port is referred to as a second connection port 75B. The connection port 75 has a first connection port 75A and a second connection port 75B. In the following description, when the first connection port 75A and the second connection port 75B are described in common, the term connection port 75 is used.

[0060] The connection port 75 is formed in the connection body 71 so as to penetrate the connection body 71 vertically. As shown in FIG. 10, the shape of the connection port 75 is circular, but is not particularly limited to this. As shown in FIG. 11, the two connection ports 75, i.e., the first connection port 75A and the second connection port 75B, have the same size. For example, the two connection ports 75 have the same diameter. However, the two connection ports 75 may have different sizes or diameters.

[0061] In this embodiment, the two connection ports 75 are formed in the main body plate portion 72 of the connection main body 71. Here, the main body plate portion 72 is provided with a connection tube portion 76. The connection tube portion 76 extends vertically and opens upward and downward. As shown in FIG. 8, the connection tube portion 76 protrudes upward from the main body plate portion 72. As shown in FIG. 12, the connection tube portion 76 protrudes downward from the main body plate portion 72. The lower end of the connection tube portion 76 is at the same height as the lower end of the main body tube portion 73. Here, as shown in FIG. 11, the connection port 75 is formed by the inner peripheral surface of the connection tube portion 76. The number of the connection tube portions 76 is two, which is the same as the number of the connection ports 75. Here, the connection tube portion 76 forming the first connection port 75A is referred to as the first connection tube portion 76A. The connection tube portion 76 forming the second connection port 75B is referred to as the second connection tube portion 76B. In the following description, the term "connecting tubular portion 76" will be used when it is common to the first connecting tubular portion 76A and the second connecting tubular portion 76B.

[0062] In this embodiment, as shown in FIG. 11, the connecting tube portion 76 has an upper portion 76a, a lower portion 76b, a connecting step portion 76c, and a regulating flange 76d. The lower portion 76b is provided below the upper portion 76a. The connecting step portion 76c is provided between the upper portion 76a and the lower portion 76b, and connects the upper portion 76a and the lower portion 76b. In the connecting tube portion 76, the inner diameters of the upper portion 76a and the lower portion 76b are different. Here, in the connecting tube portion 76, the inner diameter of the upper portion 76a is larger than the inner diameter of the lower portion 76b. Therefore, the connecting step portion 76c is provided between the upper portion 76a and the lower portion 76b. The connecting step portion 76c is provided on the inner circumferential surface of the connecting tube portion 76.

[0063] The restricting flange 76d is annular and protrudes from the inner circumferential surface of the connecting cylindrical portion 76 toward the inside in the radial direction of the connecting cylindrical portion 76. Here, the restricting flange 76d protrudes from the lower end of the lower part 76b of the connecting cylindrical portion 76 toward the inside in the radial direction.

[0064] In this embodiment, the connection member 70 includes a claw portion 77. As shown in FIG. 10, the claw portion 77 protrudes from the edge of the connection port 75 toward the center C2 of the connection port 75 in a plan view. When the sewage discharge pipe 5 is inserted into the connection port 75, the end of the sewage discharge pipe 5 comes into contact with the claw portion 77. This restricts the sewage discharge pipe 5 from moving downward beyond the claw portion 77. Here, four claw portions 77 are provided for the first connection port 75A so as to follow the edge of the first connection port 75A. Four claw portions 77 are provided for the second connection port 75B so as to follow the edge of the second connection port 75B. In the following description, the claw portion 77 provided on the first connection port 75A is referred to as the first claw portion 77A. The claw portion 77 provided on the second connection port 75B is referred to as the second claw portion 77B. In the following description, the term "claw portion 77" will be used when it is common to first claw portion 77A and second claw portion 77B.

[0065] Here, the four first claw portions 77A are disposed at equal intervals along the circumferential direction of the first connection port 75A. However, the intervals between adjacent first claw portions 77A in the circumferential direction of the first connection port 75A may be different. Similarly, the four second claw portions 77B are disposed at equal intervals along the circumferential direction of the second connection port 75B, but the intervals between adjacent second claw portions 77B in the circumferential direction of the second connection port 75B may be different.

[0066] In this embodiment, the multiple claws 77 are configured not to come into contact with each other. Here, as shown in Fig. 9, in a plan view, the portions (e.g., tip portions) of the multiple claws 77 arranged in the connection port 75 are spaced apart and do not come into contact with each other. Specifically, in a plan view, the portions of the multiple first claws 77A arranged in the first connection port 75A are spaced apart and do not come into contact with each other. Similarly, in a plan view, the portions of the multiple second claws 77B arranged in the second connection port 75B are spaced apart and do not come into contact with each other.

[0067] As shown in FIG. 11, the claw portion 77 (here, the first claw portion 77A and the second claw portion 77B) is provided at the lower end of the edge of the connection port 75. More specifically, the claw portion 77 is connected to the lower end of the connection tube portion 76 (for example, the regulating flange 76d) and extends from the lower end toward the inside in the radial direction of the connection port 75. The first claw portion 77A and the second claw portion 77B have the same shape. In this embodiment, the claw portion 77 has an inclined portion 78a extending obliquely downward from the lower end of the connection tube portion 76 toward the inside in the radial direction of the connection port 75, and a lateral protruding portion 78b extending from the lower end of the inclined portion 78a toward the inside in the radial direction of the connection port 75. As shown in FIG. 9, the lateral protruding portion 78b is configured to be disposed within the connection port 75 in a plan view. As shown in FIG. 12, the claw portion 77 protrudes downward from the lower end of the connection main body 71 (here, the lower end of the main body tube portion 73 of the connection main body 71).

[0068] As shown in Fig. 11, the cap 80 is cylindrical and is attached to the connection port 75. Here, as shown in Fig. 4, the cap 80 attached to the first connection port 75A is referred to as the first cap 80A. The cap 80 attached to the second connection port 75B is referred to as the second cap 80B. In the following description, the term cap 80 will be used when it is common to both the first cap 80A and the second cap 80B. Note that the second cap 80B is not shown in Figs. 9 to 11.

[0069] In this embodiment, the cap 80 is fitted into the connecting tube portion 76. The material from which the cap 80 is formed is not particularly limited. Here, the cap 80 is formed of an elastic material. An elastic material has a predetermined elastic force. An example of the elastic material is rubber. Specifically, examples of the elastic material include natural rubber and synthetic rubber, and among these, ethylene propylene diene rubber (EPDM) is particularly preferable.

[0070] In this embodiment, the cap 80 is fitted into the connecting tube portion 76, and when the sewage discharge pipe 5 is inserted into the connecting port 75, the cap 80 plays a role of increasing the adhesion with the sewage discharge pipe 5, making it difficult for the odor generated in the discharge pipe 13 to leak to the outside, and making it difficult for the sewage in the discharge pipe 13 to leak to the outside. In addition, for example, when the sewage discharge pipe 5 is pulled and moved with the movement of the temporary toilet 4, the cap 80 preferably has flexibility that allows it to deform so as to follow the movement of the sewage discharge pipe 5. From these viewpoints, the elastic material forming the cap 80 preferably has an elastic force that increases the adhesion with the sewage discharge pipe 5 while having flexibility that allows it to deform to a degree that allows it to follow the movement of the sewage discharge pipe 5.

[0071] FIG. 13 is a front view showing the cap 80. FIG. 14 is a view equivalent to FIG. 4, and shows a state in which the sewage discharge pipe 5 is connected to the first connection port 75A and the second connection port 75B. FIG. 15 is a view equivalent to FIG. 4, and shows a state in which the sewage discharge pipe 5 is connected to the first connection port 75A and the connection lid 90 is attached to the second connection port 75B. As shown in FIG. 13, the first cap 80A and the second cap 80B have the same configuration. In this embodiment, as shown in FIG. 14, the cap 80 has a cap insertion hole 85 formed therein. The cap insertion hole 85 is a hole that penetrates the cap 80 vertically. The sewage discharge pipe 5 connected to the temporary toilet 4 is inserted into this cap insertion hole 85.

[0072] As shown in Fig. 13, the cap 80 has a cap tubular portion 81, an outer flange 82, an inner flange 83 (see Fig. 11), and an annular portion 84. As shown in Fig. 11, the cap tubular portion 81 is fitted into the connecting tubular portion 76 and has a cylindrical shape extending vertically. When the cap tubular portion 81 is fitted into the connecting tubular portion 76, the lower end of the cap tubular portion 81 can come into contact with the restricting flange 76d of the connecting tubular portion 76. This makes it difficult for the cap tubular portion 81 to enter below the restricting flange 76d. The cap insertion hole 85 described above is formed in the cap tubular portion 81.

[0073] Here, as shown in FIG. 13, the cap tube portion 81 has a cap upper portion 81a, a cap lower portion 81b, and a cap step portion 81c. The cap lower portion 81b is disposed below the cap upper portion 81a. The cap step portion 81c is provided between the cap upper portion 81a and the cap lower portion 81b. In the cap tube portion 81, the cap upper portion 81a and the cap lower portion 81b have different outer diameters. Here, in the cap tube portion 81, the outer diameter of the cap upper portion 81a is larger than the outer diameter of the cap lower portion 81b. Therefore, the cap step portion 81c is provided between the cap upper portion 81a and the cap lower portion 81b. The cap step portion 81c is provided on the outer circumferential surface of the cap tube portion 81. In this embodiment, as shown in FIG. 11, when the cap 80 is attached to the connection port 75, the cap upper portion 81a, the cap lower portion 81b, and the cap step portion 81c of the cap tube portion 81 of the cap 80 are positioned opposite the upper portion 76a, the lower portion 76b, and the connecting step portion 76c of the connecting tube portion 76, respectively.

[0074] As shown in FIG. 11, the outer flange 82 protrudes from the outer peripheral surface of the cap tubular portion 81 toward the outside of the cap tubular portion 81. The outer flange 82 is annular. The outer flange 82 is provided at the upper end of the cap tubular portion 81. In this embodiment, when the cap 80 is attached to the connection port 75, the outer flange 82 is placed on the upper end of the connection tubular portion 76. This makes it possible to restrict the outer flange 82 of the cap 80 from moving downward below the upper end of the connection tubular portion 76. The inner flange 83 protrudes from the inner peripheral surface of the cap tubular portion 81 toward the inside of the cap tubular portion 81. The inner flange 83 is annular. As shown in FIG. 14, when the sewage discharge pipe 5 is connected to the connection port 75, that is, when the sewage discharge pipe 5 is fitted into the cap 80, the outer peripheral surface of the sewage discharge pipe 5 can come into contact with the inner flange 83. In this embodiment, the inner diameter of the inner flange 83 is smaller than the outer diameter of the sewage discharge pipe 5. Therefore, when the sewage drain pipe 5 is fitted into the cap 80, the inner flange 83 bends downward and contacts the outer circumferential surface of the sewage drain pipe 5. This makes it possible to position the sewage drain pipe 5 relative to the connection port 75.

[0075] As shown in Fig. 13, the annular portion 84 is provided on the outer peripheral surface of the cap tubular portion 81 and has an annular shape extending along the circumferential direction of the cap tubular portion 81. In this embodiment, the annular portion 84 is provided on the outer peripheral surface of the cap upper portion 81a of the cap tubular portion 81. As shown in Fig. 11, when the cap 80 is attached to the connection port 75, the annular portion 84 is in a crushed state and is interposed between the connection tubular portion 76 and the cap tubular portion 81. This annular portion 84 improves the sealing performance between the cap 80 and the connection tubular portion 76.

[0076] In this embodiment, as shown in FIG. 15, the connection member 70 includes a connection lid 90. Here, at least one of the two connection ports 75 of the connection member 70 is connected to a sewage drain pipe 5 connected to the temporary toilet 4. Of the two connection ports 75, the connection port 75 that is not connected to the sewage drain pipe 5 is fitted with a connection lid 90. Here, the connection lid 90 is fitted into a cap 80 attached to the connection port 75 that is not connected to the sewage drain pipe 5. In one example of FIG. 15, the sewage drain pipe 5 is connected to the first connection port 75A, and the connection lid 90 is attached to the second connection port 75B. The connection lid 90 closes the connection port 75 that is not connected to the temporary toilet 4. The configuration of the connection lid 90 is not particularly limited. In this embodiment, the connection lid 90 has a lid closing plate portion 91 and a lid cylinder portion 92.

[0077] The lid closing plate portion 91 is a plate-like member that closes the connection port 75. Here, the lid closing plate portion 91 closes the connection port 75 by closing the cap insertion hole 85 of the cap 80. The lid cylinder portion 92 is a cylinder that extends downward from the lid closing plate portion 91. Here, when the connection lid 90 is attached to the connection port 75, the lid cylinder portion 92 is inserted into the cap cylinder portion 81 (here, the cap insertion hole 85) of the cap 80. The peripheral end portion of the lid closing plate portion 91 is a flange that protrudes outward from the lid cylinder portion 92. When the connection lid 90 is attached to the connection port 75, the peripheral end portion of the lid closing plate portion 91 contacts the upper end (here, the inner flange 83) of the cap 80. Therefore, in the connection lid 90, the lid closing plate portion 91 is restricted from moving downward from the inner flange 83.

[0078] 14, in this embodiment, for example, when the sewage drain pipe 5 of the temporary toilet 4 is connected to each of the two connection ports 75, the connection lid 90 is not used. On the other hand, although not shown, when the sewage drain pipe 5 is not connected to each of the two connection ports 75, the connection lid 90 is attached to each connection port 75 to close it.

[0079] The configuration of the wastewater discharge system 1 according to this embodiment has been described above. Next, a method of using the connection member 70 will be described. Here, it is possible to connect as many temporary toilets 4 to the connection member 70 as there are connection ports 75. Below, a case will be described in which temporary toilets 4 are connected to both of the two connection ports 75 of the connection member 70 as shown in FIG. 1.

[0080] First, as shown in Fig. 14, the connecting member 70 is installed in the riser pipe 11 of the pipeline 10. Here, as shown in Fig. 3, before the connecting member 70 is installed in the riser pipe 11, the lid 20 is attached to the lid frame 12 provided at the upper end of the riser pipe 11. Therefore, the worker removes the child lid 22 from the parent lid 21.

[0081] Next, as shown in FIG. 14, the worker places the connection member 70 in the standpipe 11 through the fitting hole 33 of the parent lid 21. At this time, the connection member 70 is attached to the inner peripheral surface of the parent lid tubular portion 32 of the parent lid 21. Here, as described above, the connection fitting portion 51 of the connection tubular portion 41 of the anti-odor valve mechanism 40 is fitted into the parent lid tubular portion 32. Therefore, the worker places the connection member 70 in the connection fitting portion 51 so that the lower end of the connection body 71 of the connection member 70 is placed on the step portion 55 between the connection fitting portion 51 and the connection vertical portion 52 of the anti-odor valve mechanism 40. This allows the connection member 70 to be provided in the standpipe 11 while fixing the position of the connection member 70 in the standpipe 11.

[0082] Next, the temporary toilet 4 (see FIG. 1) is connected to the connection port 75 formed in the connection member 70. Here, as shown in FIG. 14, the sewage discharge pipe 5 connected to the temporary toilet 4 is connected to each of the two connection ports 75. The worker inserts the tip of the sewage discharge pipe 5 of one of the temporary toilets 4 into the first connection port 75A. Here, the sewage discharge pipe 5 is inserted into the cap insertion hole 85 of the first cap 80A fitted into the first connection port 75A. At this time, the inner flange 83 of the first cap 80A contacts the outer circumferential surface of the sewage discharge pipe 5, and when the sewage discharge pipe 5 is inserted downward, it bends downward with the downward movement of the sewage discharge pipe 5. At this time, the part of the sewage discharge pipe 5 that contacts the inner flange 83 may be pushed by the inner flange 83 and reduced in diameter. The tip of the sewage discharge pipe 5 is inserted into the cap insertion hole 85 of the first cap 80A until it contacts the first claw portion 77A. This allows the sewage drain pipe 5 to be connected to the first connection port 75A. In the same manner, the worker inserts the tip of the sewage drain pipe 5 of the other temporary toilet 4 into the second connection port 75B. Here, the sewage drain pipe 5 is inserted into the cap insertion hole 85 of the second cap 80B fitted into the second connection port 75B until the tip of the sewage drain pipe 5 comes into contact with the second claw portion 77B. In this manner, the temporary toilets 4 can be connected to the two connection ports 75.

[0083] In this embodiment, as shown in Fig. 1, the temporary toilet 4 connected to the connection port 75 of the connection member 70 is not installed directly above the standpipe 11, but is installed at a position away from the standpipe 11. Therefore, at least a portion of the sewage drain pipe 5 connecting the temporary toilet 4 and the connection port 75 of the connection member 70 is arranged horizontally, extending along the ground surface GL. In this embodiment, as described above, the sewage drain pipe 5 is configured by, for example, a bellows-shaped hose. Therefore, the sewage drain pipe 5 may be arranged on the ground surface GL with a portion of it bent.

[0084] When the temporary toilet 4 is used, wastewater such as urine flows through the wastewater discharge pipe 5 to the connecting member 70. In the connecting member 70, the wastewater flows through the connection port 75 into the standpipe 11. At this time, when the valve body 63 of the anti-odor valve mechanism 40 is in a closed state, the wastewater temporarily accumulates on the valve body 63. Then, when the weight of the valve body 63 and the wastewater becomes greater than the weight of the weight 64, the valve body 63 is opened as shown in FIG. 7. When the valve body 63 is opened, the wastewater flows through the standpipe 11 into the discharge pipe 13 (see FIG. 1) and is discharged into the main sewer pipe.

[0085] In this embodiment, as shown in Fig. 15, when there is a connection port 75 of the two connection ports 75 of the connection member 70 to which the temporary toilet 4 is not connected, the connection port 75 is fitted with a connection lid 90. For example, when the temporary toilet 4 is not connected to the second connection port 75B, the connection lid 90 is fitted to the second connection port 75B. For example, the worker fits the lid cylinder portion 92 of the connection lid 90 into the cap 80 (here, the second cap 80B) and closes the second connection port 75B with the lid closing plate portion 91. This makes it difficult for bad odors to leak to the outside from the second connection port 75B.

[0086] In this embodiment, as shown in FIG. 4, even if the sewage discharge pipe 5 of the temporary toilet 4 is not connected to the connection port 75 of the connection member 70, the child lid 22 can be attached to the parent lid 21 with the connection member 70 provided in the standpipe 11. For example, the connection member 70 is placed in the connection fitting portion 51 so that the lower end of the connection body 71 of the connection member 70 is placed on the step portion 55 between the connection fitting portion 51 and the connection vertical portion 52 of the odor control valve mechanism 40. This allows the connection member 70 to be placed in the standpipe 11. At this time, it is preferable that a connection lid 90 (see FIG. 15) is attached to each of the two connection ports 75 of the connection member 70 and closed. In this state, when the child lid 22 is fitted into the fitting hole 33 of the parent lid 21, the child lid 22 is attached to the parent lid 21 without interfering with the connection member 70.

[0087] As described above, in this embodiment, as shown in FIG. 1, the sewage discharge system 1 includes a temporary toilet connection member set 100, a discharge pipeline 13 through which sewage is discharged, a standpipe 11 connected to the discharge pipeline 13, a temporary toilet 4, and a sewage discharge pipe 5 connected to the temporary toilet 4 and selectively connected to one of a plurality of connection ports 75 (see FIG. 14) of a temporary toilet connection member 70. As shown in FIG. 4, the temporary toilet connection member set 100 includes a cover 20 provided on a cover frame 12 provided at the upper end of the standpipe 11, and a temporary toilet connection member 70. As shown in FIG. 14, the temporary toilet connection member 70 is detachable within the standpipe 11 connected to the discharge pipeline 13 through which sewage is discharged, and is a member to which a sewage discharge pipe 5 connected to the temporary toilet 4 is connected. The temporary toilet connection member 70 includes a connection body 71 formed with a plurality of connection ports 75 (here, a first connection port 75A and a second connection port 75B) through which a sewage drain pipe 5 leading to a temporary toilet 4 can be connected. This allows the sewage drain pipe 5 leading to the temporary toilet 4 to be connected to each of the plurality of connection ports 75 formed in the connection body 71. Therefore, it is possible to connect as many temporary toilets 4 as there are connection ports 75 to the temporary toilet connection member 70. Therefore, many temporary toilets 4 can be connected to one temporary toilet connection member 70.

[0088] In this embodiment, as shown in Fig. 14, the temporary toilet connection member 70 is attached to the connection port 75, has a cap insertion hole 85 formed therein into which the sewage discharge pipe 5 is fitted, and includes a cylindrical cap 80 made of an elastic material. With this, by fitting the sewage discharge pipe 5 into the cap 80 made of an elastic material, it is possible to increase the adhesion between the sewage discharge pipe 5 and the cap 80. Therefore, when the sewage discharge pipe 5 is connected to the connection port 75, it is possible to make it difficult for sewage to leak between the sewage discharge pipe 5 and the cap 80.

[0089] In this embodiment, as shown in Fig. 10, the temporary toilet connection member 70 has a claw portion 77 that protrudes from the edge of the connection port 75 into the connection port 75 in a plan view and is capable of contacting the tip of the sewage drain pipe 5. Here, when the sewage drain pipe 5 is connected to the connection port 75, the sewage drain pipe 5 comes into contact with the claw portion 77, so that the claw portion 77 can restrict movement of the sewage drain pipe 5 (here, movement of the sewage drain pipe 5 downward beyond the claw portion 77). Therefore, it is possible to prevent the sewage drain pipe 5 from being pushed into the connection port 75 beyond the claw portion 77.

[0090] In this embodiment, a plurality of claw portions 77 are provided for one connection port 75. In a plan view, the portions of the plurality of claw portions 77 protruding into the connection port 75 are spaced apart. If the portions of the plurality of claw portions 77 protruding into the connection port 75 were not spaced apart (for example, in the case of a ring-shaped portion integrally formed by the portions of the plurality of claw portions 77), wastewater and the like that may be contained in the wastewater would easily get caught by the claw portions 77. However, in this embodiment, the wastewater discharged from the temporary toilet 4 passes through the plurality of claw portions 77 through the wastewater discharge pipe 5 and is discharged. Here, since the portions of the plurality of claw portions 77 protruding into the connection port 75 are spaced apart, even if wastewater contains wastewater, the wastewater is unlikely to get caught by the claw portions 77 and can pass through the plurality of claw portions 77 and be discharged.

[0091] In this embodiment, as shown in FIG. 15, the sewage discharge pipe 5 is selectively connected to the multiple connection ports 75. The temporary toilet connection member 70 is equipped with a connection lid 90 that is attached to the connection port 75 (the second connection port 75B in FIG. 15) to which the sewage discharge pipe 5 is not connected among the multiple connection ports 75 and closes the connection port 75 to which the sewage discharge pipe 5 is not connected. For example, since the connection port 75 to which the sewage discharge pipe 5 is not connected is open, the bad odor generated in the discharge pipeline 13 may leak to the outside through the connection port 75 to which the sewage discharge pipe 5 is not connected. However, in this embodiment, the connection lid 90 is attached to the connection port 75 to which the sewage discharge pipe 5 is not connected (for example, the second connection port 75B), so that the second connection port 75B can be closed. Therefore, it is possible to make it difficult for the bad odor generated in the discharge pipeline 13 to leak to the outside through the second connection port 75B to which the sewage discharge pipe 5 is not connected.

[0092] In this embodiment, as shown in FIG. 4, the lid 20 has a parent lid 21 having a parent lid body 31 with a fitting hole 33 formed therein that fits into the lid frame 12 and penetrates vertically, and a child lid 22 that fits into the fitting hole 33. The temporary toilet connection member 70 is configured to be attached to the parent lid 21. In this way, by attaching the parent lid 21 to the lid frame 12 provided at the upper end of the standpipe 11, the temporary toilet connection member 70 can be placed in the standpipe 11. In addition, by removing the parent lid 21 from the lid frame 12, the temporary toilet connection member 70 can be removed from the standpipe 11. Therefore, the temporary toilet connection member 70 can be attached and detached from the standpipe 11 in conjunction with the attachment and detachment of the parent lid 21 to the lid frame 12.

[0093] In this embodiment, the parent lid 21 has a parent lid tubular portion 32 extending downward from the parent lid main body 31. The temporary toilet connection member 70 is configured to fit into the parent lid tubular portion 32. Here, the temporary toilet connection member 70 is configured to fit into the connection tubular portion 41 of the odor control valve mechanism 40 and indirectly fit into the parent lid tubular portion 32 via the connection tubular portion 41. In this way, with a simple configuration in which the temporary toilet connection member 70 is fitted into the parent lid tubular portion 32 of the parent lid 21, the temporary toilet connection member 70 can be disposed in the standpipe 11 while the position of the temporary toilet connection member 70 relative to the standpipe 11 can be fixed.

[0094] In this embodiment, the temporary toilet connection member set 100 is equipped with an anti-odor valve mechanism 40 having an anti-odor valve 42 that opens and closes the parent lid tubular part 32. Here, the anti-odor valve 42 opens and closes the parent lid tubular part 32 by opening and closing the lower end of the connection tubular part 41. In this way, by closing the parent lid tubular part 32 with the anti-odor valve 42 of the anti-odor valve mechanism 40, it is possible to make it difficult for bad odors generated in the discharge pipe 13 to leak to the outside through the parent lid tubular part 32.

[0095] In this embodiment, as shown in Fig. 1, the temporary toilet 4 is a toilet for discharging urine. Therefore, it is assumed that mainly urine flows through the sewage drain pipe 5 connected to the temporary toilet 4, and that waste such as feces does not flow through it. Therefore, even if the diameter of the sewage drain pipe 5 is small, sewage including urine can be smoothly discharged. Therefore, the size of the connection port 75 of the temporary toilet connection member 70 can be reduced to match the diameter of the sewage drain pipe 5, and therefore multiple connection ports 75 can be formed in the connection body 71.

[0096] In this embodiment, the wastewater drain pipe 5 is a hose, more specifically, a bellows-shaped hose. As described above, urine mainly flows through the wastewater drain pipe 5. Therefore, even if the wastewater drain pipe 5 is a hose, wastewater containing urine can flow smoothly.

[0097] In this embodiment, at least a portion of the sewage drain pipe 5 is disposed horizontally along the ground surface GL. As described above, it is assumed that mainly urine will flow through the sewage drain pipe 5, and that no waste such as feces will flow through it. Therefore, even when at least a portion of the sewage drain pipe 5 is disposed horizontally, sewage including urine can flow smoothly.

[0098] In the above embodiment, the temporary toilet connection member 70 is disposed in the standpipe 11 by fitting into the parent lid cylindrical portion 32 of the parent lid 21. However, the temporary toilet connection member 70 may be attached to a portion of the parent lid 21 other than the parent lid cylindrical portion 32 (for example, the bottom surface of the parent lid main body 31).

[0099] In addition, the temporary toilet connection member 70 does not have to be attached to the main lid 21. For example, the temporary toilet connection member 70 may be configured to be attached to the standpipe 11 or the lid frame 12. [Explanation of symbols]

[0100] 1 Wastewater discharge system 4. Temporary Toilets 5. Sewage discharge pipe 11 Standpipe 12 Lid frame 13 Discharge pipe 20 Lid 21 Parent lid 22 Child cover 31 Main lid body 32 Main lid cylindrical part 33 Fitting hole 40 Anti-odor valve mechanism 42 Odor control valve 70 Connection parts (connection parts for temporary toilets) 71 Connection body 75 Connection port 77 Claw 80 Cap 85 Cap insertion hole 90 Connection cover 100 Connection parts set (connection parts set for portable toilets)

Claims

1. A temporary toilet connection member that is detachable within a standpipe that is connected to a drainage pipe through which sewage is discharged, and to which a sewage drain pipe that is connected to the temporary toilet is connected, A connection member for a temporary toilet, comprising a connection body formed with a plurality of connection ports passing therethrough to which the sewage drain pipe leading to the temporary toilet can be connected.

2. 2. A connection member for a temporary toilet as described in claim 1, comprising a cylindrical cap that is attached to the connection port, has a cap insertion hole into which the sewage drain pipe is fitted, and is made of an elastic material.

3. 2. The temporary toilet connection member according to claim 1, further comprising a claw portion that protrudes from an edge of the connection port into the connection port in a plan view and that is contactable with the tip of the sewage drain pipe.

4. A plurality of the claw portions are provided for each of the connection ports, The temporary toilet connection member according to claim 3 , wherein the claw portions protruding into the connection port are spaced apart from each other in a plan view.

5. The wastewater discharge pipes are selectively connected to the plurality of connection ports, A connection member for a temporary toilet as described in claim 1, further comprising a connection cover that is attached to one of the plurality of connection ports to which the sewage drain pipe is not connected and closes the connection port to which the sewage drain pipe is not connected.

6. A lid provided on a lid frame provided at the upper end of the standpipe; A temporary toilet connection member according to any one of claims 1 to 5; A set of connection parts for temporary toilets.

7. The lid is a parent lid having a parent lid body which is fitted into the lid frame and has a fitting hole penetrating vertically; A child cover that fits into the fitting hole; having The temporary toilet connection member set according to claim 6, wherein the temporary toilet connection member is configured to be attached to the parent lid.

8. The parent lid has a parent lid tubular portion extending downward from the parent lid main body, The temporary toilet connection member set according to claim 7, wherein the temporary toilet connection member is configured to fit into the parent lid cylindrical portion.

9. 9. A temporary toilet connection member set as described in claim 8, further comprising an odor control valve mechanism having an odor control valve for opening and closing the parent tubular portion.

10. A temporary toilet connection member set according to claim 6, The discharge pipe through which wastewater is discharged; The standpipe connected to the discharge pipeline; The temporary toilet; The sewage discharge pipe is connected to the temporary toilet and is selectively connected to any one of the multiple connection ports of the temporary toilet connection member; A wastewater discharge system equipped with

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