JP2016077883A - Temporary toilet system and pipe joint used therefor - Google Patents

Abstract

CONSTITUTION: A temporary toilet system 10 is used as a temporary toilet, by attaching a toilet bowl 16 or the like, during disaster, and comprises plural manholes 12, a drain pipe 14 for connecting the manholes and an existing sewer pipe 26, and a depot 24 for storing drain water during disaster. The drain pipe has a first opening part 40 opening upward, and the first opening part has a first lid 42. A second opening part 46 opening downward for guiding the drain water to the depot, is provided on an opposite position of the first opening part, and the second opening part has a second lid 48. The second lid can be detached using a communication space which is formed when the first lid is detached from the first opening part, in a first state in which the second lid is attached, the drain water can be guided to the existing sewer pipe, and in a second state in which the second lid is detached, the drain water can be guided to inside of the depot.EFFECT: Working property when starting use of a depot, can be improved.SELECTED DRAWING: Figure 9

Description

  The present invention relates to a temporary toilet system and a pipe joint used therefor, and in particular, for example, a temporary toilet system that is preliminarily constructed in an area that serves as an evacuation site in the event of a disaster such as an earthquake and is used as a temporary toilet with a toilet bowl attached thereto And a pipe joint used therefor.

  An example of a conventional temporary toilet system of this type is disclosed in Patent Document 1. The temporary toilet system of Patent Document 1 includes a plurality of manholes and a first drain pipe connecting them. A tank is connected to the downstream side of the first drain pipe, and this tank is connected to the sewage pipe via the second drain pipe. A connecting pipe that detachably connects the first drain pipe and the second drain pipe is disposed inside the tank. When the sewer pipe is usable, the first drain pipe and the second drain pipe are connected via the connection pipe. 2 The waste water is discharged to the sewer pipe by communicating with the drain pipe. On the other hand, when the sewer pipe cannot be used, the drainage is discharged into the tank by removing the connection pipe from the first drain pipe and the second drain pipe.

JP 2014-293 A

  However, the technique of Patent Document 1 requires a large-scale work of removing the connecting pipe from the first drain pipe and the second drain pipe in order to drain the drain into the tank (disaster drain storage tank) in the event of a disaster. is there. Moreover, when removing a connection pipe, an operator needs to get down to the inside of a tank.

  Therefore, a main object of the present invention is to provide a novel temporary toilet system and a pipe joint used therefor.

  Another object of the present invention is to provide a temporary toilet system and a pipe joint used therefor that are excellent in workability when starting use of a disaster drainage storage tank.

  A first invention is a temporary toilet system in which a toilet is attached and used as a temporary toilet in the event of a disaster, a plurality of vertical pipe members embedded in the ground at a predetermined toilet installation position, with a predetermined gradient A drainage pipe that is disposed and connects a plurality of vertical pipe members and existing sewer pipes, a disaster drainage tank buried in the ground, a first opening provided to open upward in the drainage pipe, A first lid that is detachably provided in the opening, a second opening that is provided to open downward at a position opposite the first opening, and that guides drainage to the disaster drainage tank, and a second opening A second lid that is detachably provided on the first opening and that can be removed using the communication space formed when the first lid is removed from the first opening, and the second lid is attached to the second opening In the first state, the drainage is discharged to the existing sewer pipe and the second opening In the second state of detaching the second lid, drainage inside the disaster drainage reservoir is stored, a temporary toilet system.

  In the first invention, the temporary toilet system is used as a temporary toilet with a toilet attached in a disaster, and includes a plurality of vertical pipe members, drainage pipes, and a disaster drainage storage tank. Each vertical pipe member is provided as, for example, a manhole, embedded in the ground at a predetermined toilet installation position, and connected to a drain pipe. The drain pipe is disposed with a predetermined gradient, and forms a pipe line connecting each vertical pipe member and the existing sewer pipe. The disaster drainage tank is, for example, a tank for storing drainage when an existing sewer pipe cannot be used, and is buried in the ground. In addition, the drain pipe includes a first opening and a second opening. The first opening is provided so as to open upward. A first lid is detachably attached to the first opening. The second opening is an opening for guiding drainage to the disaster drainage storage tank, and is provided to open downward at a position opposite to the first opening. A second lid is detachably attached to the second opening. The second lid can be removed using a communication space formed when the first lid is removed from the first opening. And in the 1st state where the 2nd opening was sealed with the 2nd lid, drainage is discharged to an existing sewer pipe through a drain pipe. On the other hand, in the second state in which the second lid is removed from the second opening, the second opening is opened downward, and the wastewater is discharged into the disaster drainage tank through the second opening. , Temporarily stored.

  According to the first aspect of the present invention, in the event of a disaster, the drainage can be drained by simply removing the second lid from the second opening using the communication space formed when the first lid is removed from the first opening. Can be discharged into the wastewater storage tank. Moreover, since only the simple operation | work of removing a 1st cover and a 2nd cover is performed, an operator can work easily from the ground, without getting down to the inside of a disaster drainage storage tank. Therefore, the workability when starting to use the disaster drainage tank is dramatically improved.

  In the second invention, the second lid is removed downward from the second opening by, for example, protruding from the ground with an opening rod, or rotating to remove the second lid. This second lid is connected to the drain pipe by anchoring means such as a wire or a chain. When the second lid is removed downward from the second opening by, for example, poking from the top with an opening rod, the tethering means prevents the second lid from falling to the bottom of the disaster drainage tank.

  According to the second invention, it is possible to easily remove the second lid from the ground simply by striking it from above with an opening rod. Therefore, there is no need to work in the disaster drainage tank. Further, since the second lid does not need to be pulled up to the ground and is simply dropped as it is, the first opening may have a small diameter enough to allow the opening rod to pass through. Further, since the mooring means is provided on the second lid, the second lid is prevented from falling to the bottom of the disaster drainage storage tank.

  The third invention is dependent on the second invention, and the base portion on the upstream side of the second opening is curved downward as it goes from the upstream side to the downstream side of the drain pipe.

  In the third invention, the base portion (base end portion) on the upstream side of the second opening is formed in a curved surface that curves downward as it goes from the upstream side to the downstream side of the drain pipe. In this way, by forming the base portion on the upstream side of the second opening in a curved shape, the drainage flowing through the drain pipe is the second opening in the second state in which the second lid is removed from the second opening. It is smoothly guided downward in the section, and the drainage is prevented from jumping over the second opening to the existing sewer pipe.

  According to the third aspect, since the base portion on the upstream side of the second opening is formed into a curved surface that curves downward, the drainage may overflow into the existing sewer pipe in the second state. Is prevented. Therefore, drainage can be discharged more appropriately into the disaster drainage tank.

  A fourth invention is dependent on any one of the first to third inventions, and further includes a cylindrical guide portion rising upward from the drain pipe, and the first opening is provided at an upper end portion of the guide portion.

  In the fourth invention, the drain pipe is provided with a guide portion. The guide portion is formed in a vertically long cylindrical shape that rises upward from the drain pipe to, for example, the vicinity of the ground, and a first opening is formed at an upper end portion thereof. The guide unit guides an opening rod for removing the second lid to the second lid.

  According to the fourth aspect, since the drain pipe is provided with the guide portion, the opening rod and the like are appropriately guided to the second lid, and the second lid can be easily removed from the ground. In addition, since the first opening is close to the ground, the operator can easily find the first opening and the first lid can be easily removed. Therefore, workability is further improved.

  A fifth invention is dependent on any one of the first to fourth inventions, the disaster drainage tank is provided to receive drainage from the second opening, and from the second opening in the second state. Wastewater is discharged directly into the disaster drainage tank.

  In the fifth invention, the disaster drainage storage tank is provided in the piping path of the drain pipe so as to receive the drainage from the second opening. And in the 2nd state which removed the 2nd lid | cover from the 2nd opening part, waste_water | drain is directly discharged | emitted with respect to the disaster wastewater storage tank from a 2nd opening part.

  According to the fifth aspect, since the wastewater is directly discharged from the second opening to the disaster drainage storage tank, there is no need to separately provide piping, and the system configuration can be simplified.

  A sixth invention is dependent on any one of the first to fourth inventions, the disaster drainage storage tank is provided at a position separated from the drain pipe, and the drainage from the second opening in the second state is a disaster. It further has a drain pipe for transporting to the waste water storage tank.

  In the sixth invention, the disaster drainage storage tank is installed at a position away from the piping path of the drain pipe. Further, a drainage branch pipe extending to the disaster drainage storage tank is further provided. In the second state in which the second lid is removed from the second opening, the drainage branch pipe conveys the wastewater flowing out from the second opening to the disaster drainage storage tank.

  According to 6th invention, the installation position of the wastewater storage tank for disasters can be set freely.

  A seventh invention is a pipe joint used for a drainage pipe of a temporary toilet system for disaster according to any one of the first to sixth inventions, and opens upward in a straight pipe joint body and joint body. The first opening provided in this manner, the first lid detachably provided in the first opening, the second opening provided so as to open downward at a position facing the first opening, and the second opening It is a pipe joint provided with the 2nd lid | cover which is provided detachably and can be removed using the communication space formed when a 1st lid | cover is removed from a 1st opening part.

  In 7th invention, a pipe joint is used for the drain pipe of a temporary toilet system, and contains a straight tubular joint main body. The joint body includes a first opening and a second opening. The first opening is provided so as to open upward. A first lid is detachably attached to the first opening. The second opening is, for example, an opening for guiding drainage to the disaster drainage storage tank, and is provided to open downward at a position opposite to the first opening. A second lid is detachably attached to the second opening. The second lid can be removed using a communication space formed when the first lid is removed from the first opening.

  According to the seventh invention, it is possible to easily construct a temporary toilet system including the first opening and the second opening only by incorporating the pipe joint into the drain pipe.

  An eighth invention is according to the seventh invention, and further includes a water draining device having an opening / closing valve provided on a side wall of the second lid or the second opening.

  In the eighth invention, a drain hole is formed in the side wall of the second lid or the second opening, and a drain device having an open / close valve is provided in the drain hole. The opening / closing valve of the water draining device is basically closed. For example, during use training or inspection of the temporary toilet system, water that has flowed into the drain pipe is opened above the second lid. When it accumulates in the section, it is opened. As a result, the water accumulated in the second opening is drained, and water is prevented from remaining in the second opening.

  According to the eighth invention, even if water accumulates in the second opening, the water can be removed, so that the sanitary condition of the temporary toilet system can be appropriately maintained.

  According to the present invention, in the event of a disaster, the drainage can be drained by simply removing the second lid from the second opening using the communication space that is created when the first lid is removed from the first opening. It can be discharged inside the storage tank. Moreover, since only the simple operation | work of removing a 1st cover and a 2nd cover is performed, an operator can work easily from the ground, without getting down to the inside of a disaster drainage storage tank. Therefore, the workability when starting to use the disaster drainage tank is dramatically improved.

  The above object, other objects, features and advantages of the present invention will become more apparent from the following detailed description of embodiments with reference to the drawings.

It is the schematic which shows the temporary toilet using the temporary toilet system of one Example of this invention. It is the schematic which shows a mode that the temporary toilet of FIG. 1 was planarly viewed. It is an illustration figure which shows a mode that the waste water storage tank for disaster with which the temporary toilet system of FIG. 1 is provided in the ground. It is an illustration figure which shows a mode that FIG. 3 was planarly viewed. It is a front view which shows an example of the pipe joint used for the temporary toilet system of FIG. It is an illustration figure which shows the cross section seen from the front direction of the pipe joint of FIG. (A) is a front view which shows an example of the 2nd cover with which the pipe joint of FIG. 5 is provided, (B) is an illustration figure which shows the cross section seen from the front direction of the 2nd cover. It is an illustration figure which shows an example of the opening stick used for the temporary toilet system of FIG. (A) is an illustration figure which shows the 1st state of the temporary toilet system of FIG. 1, (B) is an illustration figure which shows a 2nd state. (A) is a state in which the opening rod of FIG. 8 is inserted into the first opening, (B) is a state in which the second lid is projected from above with the opening rod, and (C) is a state in which the second lid is It is an illustration figure which shows a mode that it removed from the 2nd opening part. It is an illustration figure which shows the flow of the waste_water | drain at the time of discharging | emitting the waste_water | drain collected inside the waste water storage tank for disasters from a 3rd drain pipe to an existing sewer pipe. It is an illustration figure which shows the cross section seen from the front direction of the pipe joint used for the other Example of the temporary toilet system of this invention. (A) is a front view showing an example of a second lid provided in the pipe joint of FIG. 12, and (B) is a view of the second lid taken along line XIII (B) -XIII (B) of (A). It is an illustration figure which shows a cross section. It is an illustration figure which shows the 1st state of the further another Example of the temporary toilet system of this invention. It is a front view which shows an example of the pipe joint used for the temporary toilet system of FIG. It is an illustration figure which shows the cross section seen from the front direction of the pipe joint of FIG. It is an illustration figure which shows the cross section seen from the horizontal direction of the pipe joint of FIG. It is a perspective view which shows an example of the 2nd lid | cover with which the pipe joint of FIG. 15 is provided. It is an illustration figure which shows the 2nd state of the temporary toilet system of FIG. It is an illustration figure which shows schematically the further another Example of the temporary toilet system of this invention. It is an illustration figure which shows the 1st state of the temporary toilet system of FIG. It is an illustration figure which shows the 2nd state of the temporary toilet system of FIG. It is an illustration figure which shows the 1st state of the further another Example of the temporary toilet system of this invention.

  Referring to FIGS. 1 and 2, a temporary toilet system 10 (hereinafter simply referred to as “system 10”) according to an embodiment of the present invention includes a school or an evacuation site when a disaster such as an earthquake occurs. This system is constructed in advance in the ground of an evacuation area such as a park and is used as a temporary toilet with a toilet attached in the event of a disaster, and includes a plurality of manholes (vertical pipe members) 12 and drain pipes 14. When a disaster occurs, the system 10 can be used as a temporary toilet by attaching the toilet 16 and the temporary hut 18 to a predetermined position.

  As shown in FIGS. 1 and 2, each manhole 12 is buried in the ground corresponding to a predetermined installation position of the toilet 16. As such a manhole 12, since a well-known technique can be used, the detailed description is abbreviate | omitted here. Briefly, each manhole 12 is equivalent, and is a small manhole with ribs made of hard vinyl chloride, for example, and the diameter thereof is, for example, 300 mm. In FIG. 1 and FIG. 2, five manholes 12 are arranged at equal intervals. However, this is merely an example, and the number and arrangement of the manholes 12 depend on the size of the evacuation area. It can be changed appropriately.

  A pedestal 20 is disposed above the manhole 12. A receiving frame (not shown) is placed on the upper surface of the pedestal 20, and the opening of the receiving frame is closed by an iron lid 22. And the upper surface of the iron lid 22 faces the ground surface 200.

  A drain pipe 14 is connected to the lower end of each manhole 12. The drain pipe 14 is a pipe connecting the five manholes 12 and the existing sewage pipe 26, and is connected to each manhole 12 by being piped upstream of a pipe joint 32 described later, and pipe joints 32 and a second drain pipe 14b connected downstream to the existing sewer pipe 26.

  The first drain pipe 14a is disposed with a predetermined downward slope (for example, about 18/1000), and forms a drain pipe that communicates with the inside of each manhole 12. The first drain pipe 14a is a ribbed pipe made of hard vinyl chloride, for example, and has an inner diameter of 150 mm, for example.

  The second drain pipe 14b is disposed with substantially the same downward slope as the first drain pipe 14a, and forms a drain pipe that sends the drainage from the first drain pipe 14a to the existing sewer pipe 26 through the public pit 28. . The downstream end of the second drain pipe 14b is connected to the existing sewer pipe 26. The second drain pipe 14b is formed by appropriately connecting a ribbed pipe, a straight pipe, a flexible pipe, a joint, and the like, and has an inner diameter of, for example, 150 mm.

  In the piping path of the drainage pipe 14, a disaster drainage storage tank 24 (as a storage means capable of storing wastewater containing filth discharged to each manhole 12 on the downstream side of the manhole 12 disposed on the most downstream side. Hereinafter, simply referred to as “storage tank 24”) is buried in the ground.

  As shown in FIG. 3 and FIG. 4, the storage tank 24 is formed in a substantially rectangular box shape by, for example, resin concrete, and stores wastewater including filth discharged to each manhole 12 at the time of a disaster or the like. Used. The vertical length (that is, height) of the storage tank 24 is, for example, 1500 mm, the width is, for example, 1800 mm, and the depth is, for example, 1000 mm. However, this is merely an example, and the shape and dimensions of the storage tank 24 can be appropriately changed according to the number of manholes 12, the size of the evacuation area, and the like.

  In this embodiment, the pipe end of the first drain pipe 14a is inserted into the through hole 24b formed in the uppermost portion of the side wall 24a on the upstream side of the storage tank 24. Between the outer surface of the first drain pipe 14a and the through hole 24b, a bonding material 30 such as a water-stopping caulking material or a casey bond (manufactured by Kubota Eye) is filled. Further, the first drain pipe 14 a and the side wall 24 a are fixed by the fixing plate 100.

  Fixing plate 100 is formed of a synthetic resin such as vinyl chloride and includes a pair of rectangular halves. A substantially semicircular cutout is formed at one end of each half, and the two halves are integrated to form a fixing plate 100 having a substantially circular hole. The inner diameter of the hole is set to be substantially the same as or slightly smaller than the outer diameter of the rib formed on the outer peripheral surface of the first drain pipe 14a so that the outer peripheral surface (the outer peripheral face of the rib) of the first drain pipe 14a can be pressed. The When the first drain pipe 14 a and the side wall 24 a are fixed by the fixing plate 100, the joint portion between the first drain pipe 14 a and the side wall 24 a is covered with the fixing plate 100 outside the storage tank 24. That is, the end surface of the notch part of each half body is fitted with the outer peripheral surface of the 1st drain pipe 14a so that the 1st drain pipe 14a may be pinched | interposed from the right-and-left both sides with two halves. Then, the end faces of the halves come into contact with each other. In this state, the halves are fixed to the side wall 24a with anchor bolts or the like. In this way, the half-divided body is integrated, and the first drain pipe 14a and the side wall 24a are in a state where the outer peripheral face of the first drain pipe 14a is pressed by the inner peripheral face of the hole of the fixing plate 100. Fixed. Thereby, the axial direction movement of the 1st drain pipe 14a with respect to the side wall 24a is controlled.

  Similarly, the pipe end of the second drain pipe 14b is inserted into a through hole 24b formed at a predetermined position on the downstream side wall 24a of the storage tank 24 and lower than the first drain pipe 14a. The bonding material 30 is filled between the outer surface of the second drain pipe 14b and the through hole 24b, and the second drain pipe 14b and the side wall 24a are fixed by the fixing plate 100. The depth position of the drain pipe 14 passing through the inside of the storage tank 24 is set to, for example, approximately 700 mm underground. The storage tank 24 is carried into the construction site in a state where the first and second drain pipes 14a and 14b are joined to the side wall 24a.

  An inspection port 88 that protrudes vertically upward is provided on the upper surface of the storage tank 24. As shown in FIG. 3, the inspection port 88 is closed with an iron lid 90, and the upper surface of the iron lid 90 faces the ground surface 200. Further, on the inner side of the side wall 24 a of the storage tank 24, a lifting step 70 is provided at a predetermined position corresponding to the inspection port 88. And the pipe joint 32 which has the 1st and 2nd opening parts 40 and 46 below the inspection port 88 is piped in the position which overlaps with the inspection port 88 by planar view. However, the pipe joint 32 is piped so as to be positioned at the peripheral edge of the inspection port 88 in a plan view so as not to obstruct the operator when moving up and down. The pipe joint 32 is provided in the reservoir 24 so as to connect the first drain pipe 14a and the second drain pipe 14b with a gradient substantially equal to that of the first and second drain pipes 14a and 14b. A part of the drainage pipe 14 is configured together with the first and second drainage pipes 14a and 14b. In this embodiment, the first and second openings 40 and 46 are provided in the drainage pipe 14 by incorporating the pipe joint 32 having the first opening 40 and the second opening 46 into the drainage pipe 14. . Hereinafter, the pipe joint 32 will be described with reference to FIGS.

  The pipe joint 32 is formed of the same material as the drain pipe 14, for example, hard vinyl chloride. The pipe joint 32 includes a straight tubular joint body 34, and adhesive receptacles 36 for receiving the ends of the first and second drain pipes 14 a and 14 b are formed at both ends thereof. In this embodiment, the rib receiving joint 36 is provided in the pipe joint 32 by adhesively bonding the rib conversion joint 66 to both ends of the joint body 34. However, the adhesive receiving port 36 may be formed integrally with the joint main body 34. Further, instead of the adhesive receiving port 36, a rubber ring receiving port may be adopted.

  The joint main body 34 of the pipe joint 32, that is, the drain pipe 14 is provided with a short cylindrical first opening 40 that opens upward. In this embodiment, an elongated cylindrical guide portion 38 is provided at the top of the joint body 34, and a first opening 40 is formed at the upper end of the guide portion 38. For example, the guide portion 38 is formed by joining a straight pipe to the joint main body 34 by welding or the like, and the first opening 40 is formed by joining a socket and a spacer to the distal end portion of the straight pipe. The guide portion 38 is provided so as to rise upward from the zenith portion of the joint main body 34 to the vicinity of the ground, and the first opening 40 is located near the ground below the inspection port 88. The axial length of the guide part 38 including the first opening 40 is, for example, 565 mm. Moreover, the guide part 38 is made thinner than the 2nd opening part 46 mentioned later, and the internal diameter is 50 mm, for example. In this way, by making the guide portion 38 thinner, it becomes easier to guide the stopper rod 56 described later to the second lid 48.

  A first lid 42 is detachably provided at the distal end portion of the first opening 40. The first lid 42 is a general-purpose lid formed of a synthetic resin such as hard vinyl chloride, and includes a disc-shaped lid body 42a. The lid main body 42 a is provided so as to cover the first opening 40 from above, and the back surface thereof is in contact with the upper end of the first opening 40. A short cylindrical fitting portion 42b is provided on the back surface of the lid body 42a. The fitting portion 42b is fitted into the first opening 40, and the outer surface thereof is along the inner surface of the first opening 40, and a groove (not shown) extending in the circumferential direction is formed on the outer surface. The A rubber ring (not shown) is provided in the groove, and the rubber ring maintains airtightness and watertightness between the inner side surface of the first opening 40 and the outer side surface of the fitting portion 42b. By sealing the first opening 40 with the first lid 42, it is possible to prevent odors and harmful gases from leaking from the first opening 40 and filling the storage tank 24 in normal times. Further, moisture can be prevented from entering the storage tank 24 from the existing sewage pipe 26, and the vapor thereof becoming water droplets and collecting in the storage tank 24. In addition, on the top surface of the zenith portion of the first lid 42, a knob portion 42c that protrudes upward is provided so that the first lid 42 can be easily gripped.

  A second opening 46 that branches into a short tubular shape is provided at a position opposite to the first opening 40, that is, at the bottom of the joint body 34 so as to open downward. The second opening 46 is an opening for guiding drainage to the storage tank 24, and after being branched obliquely from the joint body 34, the second opening 46 is curved and extends downward. A base portion (base end portion) 46 b on the upstream side of the second opening 46 is formed in a curved surface that curves downward as it goes from the upstream side to the downstream side of the joint body 34. The inner diameter of the second opening 46 is, for example, 150 mm.

  A second lid 48 is detachably provided at the tip of the second opening 46. As shown in FIG. 7, the second lid 48 is a general-purpose lid formed of a synthetic resin such as hard vinyl chloride, and is attached to the second opening 46 upside down. The second lid 48 includes a disc-shaped lid body 48a. The lid body 48 a is provided so as to cover the second opening 46 from below, and the back surface thereof abuts on the lower end of the second opening 46. A short cylindrical fitting portion 48b is provided on the back surface of the lid body 48a. The fitting portion 48 b is fitted in the second opening 46, and the outer side surface 48 c is along the inner side surface 46 a of the second opening 46. A groove 48d extending in the circumferential direction is formed in the central portion of the outer surface 48c of the fitting portion 48b. A rubber ring 50 is provided in the groove 48d, and the rubber ring 50 maintains airtightness and watertightness between the inner side surface 46a of the second opening 46 and the outer side surface 48c of the fitting portion 48b. By sealing the second opening 46 with the second lid 48, it is possible to prevent the odor and harmful gas from the second opening 46 from leaking and filling the storage tank 24 at normal times. Further, moisture can be prevented from entering the storage tank 24 from the existing sewage pipe 26, and the vapor thereof becoming water droplets and collecting in the storage tank 24. In addition, a grip portion 48 e that protrudes outward is provided on the surface of the second lid 48. The second lid 48 is removed downward by protruding from above with an opening rod 56 or the like, which will be described later.

  Further, a wire 52 (an anchoring means) is attached to the grip portion 48e, and the second lid 48 is connected to the joint body 34 of the pipe joint 32, that is, the drain pipe 14 by this wire 52. The end of the wire 52 on the joint body 34 side is attached to the joint body 34 at a position shifted in the horizontal direction from the second opening 46. When the second lid 48 is removed from the second opening 46, the second lid 48 is moored to the joint body 34 by the wire 52, and the second lid 48 falls to the bottom of the storage tank 24. Is prevented. The connection position of the wire 52 with respect to the joint main body 34 of the pipe joint 32, the length of the wire 52, and the like are such that when the second lid 48 is removed from the second opening 46, the second lid 48 is stored in the storage tank 24. It is preferable to set so as not to hit the wall.

  When removing the second lid 48 as described above, an opening rod 56 is used. Referring to FIG. 8, opening rod 56 is formed of a synthetic resin such as hard vinyl chloride and includes a vertical bar portion 56b. A horizontal bar portion 56a extending in a direction orthogonal to the vertical bar portion 56b is provided at the upper end portion of the vertical bar portion 56b. When removing the second lid 48 using the opening rod 56, the vertical bar portion 56b is inserted into the first opening 40, and further guided to the second lid 48 by the guide portion 38. The second lid 48 is pushed from above. The length of the vertical bar 56b is set to be larger than the distance from the upper end of the first opening 40 to the lower end of the second opening 46, and is 1500 mm, for example. The horizontal bar portion 56 a functions as a grip portion and also functions as a fall prevention portion (stopper) when the vertical bar portion 56 b is inserted into the first opening 40. The length of the horizontal bar portion 56a is, for example, 300 mm. The opening rod 56 is preferably installed in the raising / lowering step 70 in normal times.

  Note that the shape, size, material, and the like of the opening rod 56 are not limited to this, and can be changed as appropriate. Moreover, although illustration is abbreviate | omitted, the horizontal bar part 56a and the vertical bar part 56b may each be shape | molded as a different body, and you may make it assemble and use at the time of opening. In that case, for example, a concave portion having an inner diameter substantially equal to the outer diameter of the vertical rod portion 56b is formed in the axial central portion of the horizontal rod portion 56a, and one end portion of the vertical rod portion 56b is fitted into the concave portion. It is good to do so. Further, the vertical bar portion 56b may be formed by a member divided into two or more in advance, and may be assembled and used at the time of opening. In this case, for example, it is preferable that the members are assembled by forming concavities and convexities that fit each other and fitting the concavities and convexities together. Alternatively, the vertical bar portion 56b may be formed of an extendable or foldable pipe or the like, and may be used in a stretched state when opened. Further, the horizontal bar portion 56a is not necessarily required.

  Returning to FIG. 5, at the normal time or when the drainage is led to the existing sewer pipe 26 as it is, a binding band 54 such as a PP band is attached to the pipe joint 32 so as to press the first and second lids 42 and 48 from the outside. It is good to wind around in the vertical direction. This reliably prevents the second lid 48 from dropping (disengaging) from the second opening 46 due to its own weight or the weight of drainage.

  Returning to FIGS. 3 and 4, such a pipe joint 32 is formed by, for example, inserting the pipe ends of the first and second drain pipes 14 a and 14 b into the receiving ports 36 and adhesively bonding them. It is connected to the second drain pipes 14a and 14b, and is disposed with a gradient substantially equal to that of the first and second drain pipes 14a and 14b. Further, at the time of installation, the first and second lids 42 and 48 are respectively attached.

  A third drain pipe 58 is connected via a gate valve 62 to a predetermined position on the downstream side wall 24a of the storage tank 24 and lower than the second drain pipe 14b. The third drain pipe 58 is a pipe that sends the drainage water inside the storage tank 24 to the existing sewage pipe 26 through the public pit 60, and is formed by appropriately connecting a straight pipe, a flexible pipe, a joint, and the like. Similar to the first and second drain pipes 14a and 14b, the third drain pipe 58 is inserted into a through hole 24b formed in the side wall 24a of the storage tank 24, and a bonding material between the outer surface and the through hole 24b. 30 is filled.

  The gate valve 62 is a gate valve that is provided on the inner surface side of the side wall 24 a of the storage tank 24 and opens and closes the flow path at the connecting portion between the third drain pipe 58 and the storage tank 24. The gate valve 62 is opened when the drainage stored in the storage tank 24 is discharged to the existing sewage pipe 26, and otherwise, the pipe end on the upstream side of the third drainage pipe 58 is sealed and collected. The waste water is closed to keep it inside the storage tank 24. For example, the gate valve 62 may be a known electromagnetic valve that is electrically opened and closed.

  Returning to FIGS. 1 and 2, a water storage tank is provided as a water supply means for sending cleaning water for the temporary toilet to the upstream side of the first drain pipe 14a upstream of the first drain pipe 14a in the piping path of the drain pipe 14. 72 is installed. Since such a water storage tank 72 is a well-known technique, a detailed description thereof will be omitted here, but will be briefly described.

  The water storage tank 72 is connected to the first drain pipe 14 a connected to the manhole 12 disposed on the most upstream side via the gate valve 74. For example, water is supplied to the water storage tank 72 from a water supply pump (not shown), and the water stored in the water storage tank 72 is supplied from a water inlet (not shown) formed in the lower portion to the first drain pipe 14a. It flows into the pipe end on the upstream side. As the water storage tank 72, a water storage tank made of concrete or synthetic resin can be used. The height of the water storage tank 72 is, for example, 800 mm, its width is, for example, 450 mm, and its depth is, for example, 450 mm.

  An inspection port 72 a is formed on the upper surface of the water storage tank 72. The inspection port 72a is closed by a lid 72b, and the upper surface of the lid 72b faces the ground surface 200. The inspection port is used as a water supply port to the inside of the water storage tank 72.

  The gate valve 74 is opened when the water accumulated in the water storage tank 72 is sent to the upstream side of the first drain pipe 14 a, and at other times, the water inlet is sealed to allow the water to enter the water storage tank 72. It is a gate valve for retaining, and is provided on the inner surface side of the water storage tank 72. A known electromagnetic valve or the like can be used as the gate valve 74.

  Furthermore, a rainwater storage tank 76 is installed in the ground of the construction area of the system 10 adjacent to the piping path of the drain pipe 14 arranged as described above. In this embodiment, rainwater collected in the rainwater storage tank 76 is pumped up (taken in) by a water supply pump, and then supplied into the water storage tank 72 and used as cleaning water for the temporary toilet. As the rainwater storage tank 76, for example, various rainwater storage tanks 76 (Japanese Patent Laid-Open No. 2014-293) manufactured and sold by the applicant of the present application can be employed.

  By constructing such a system 10 in the ground of an evacuation site in advance of a disaster, a temporary toilet can be quickly and easily installed when a disaster occurs. When the system 10 is used as a temporary toilet, first, equipment such as the toilet 16 and the temporary shed 18 is carried out from a storage (not shown). Then, the iron lid 22 at the top of each manhole 12 is removed, and the toilet 16 is installed there, and a temporary hut 18 is installed so as to surround each toilet 16.

  One of the particularly important points in the system 10 is a mechanism for selecting a disposal destination of the filth accumulated in each manhole 12. In the system 10 employing this mechanism, when the existing sewer pipe 26 can be used at the time of a disaster, the first and second openings 40 and 46 are kept in a sealed state (first state). Thereby, the filth collected in each manhole 12 can be led from the first drain pipe 14a to the existing sewer pipe 26 through the second drain pipe 14b. On the other hand, in the event of a disaster, when the existing sewer pipe 26 cannot be used or when it is unclear whether the existing sewer pipe 26 can be used, the second lid 48 is removed from the second opening 46 (second State). As a result, as will be described in detail later, the second opening 46 is opened downward, and the waste accumulated in each manhole 12 can be guided from the first drain pipe 14a to the inside of the storage tank 24.

  Hereinafter, among the methods of using a temporary toilet using the system 10, a method of treating filth collected in each manhole 12 when the existing sewage pipe 26 can be used in the event of a disaster will be specifically described. explain.

  First, cleaning water for cleaning (scavenging) the dirt accumulated in each manhole 12 is supplied to the water storage tank 72.

  Specifically, first, a water supply pump (not shown) is prepared on the ground of the construction area. Subsequently, the lid 72 b of the water storage tank 72 is removed, the rainwater stored in the rainwater storage tank 76 is pumped up (taken in) by the water supply pump, and the rainwater is supplied into the water storage tank 72. However, water supplied from other water supply sources (wells, pools, tap water, etc.) may be supplied to the storage tank 72 together with or instead of the rainwater taken from the rainwater storage tank 76.

  Then, the gate valve 74 is opened at an appropriate timing to allow a predetermined amount of water in the water storage tank 72 to flow from the water inlet (not shown) to the upstream pipe end of the first drain pipe 14a. The timing for opening the gate valve 74 and the amount of water fed from the water storage tank 72 are adjusted as appropriate so that the filth collected in each manhole 12 can be swept away using relatively little water.

  Then, the water sent from the water storage tank 72 flows down at a predetermined speed through the first drain pipe 14a embedded at a predetermined gradient, and passes through the first drain pipe 14a as shown in FIG. 9 (A). In the second opening 46, it flows on the upper surface of the second lid 48, and is further led to the existing sewage pipe 26 through the second drain pipe 14b. At this time, the filth discharged into each manhole 12 is discharged into the existing sewer pipe 26 together with the flowing water.

  Next, a specific method for treating the filth collected in each manhole 12 when the existing sewage pipe 26 becomes unusable due to a disaster or when it is unclear whether the existing sewage pipe 26 can be used, etc. Explained.

  First, before starting to use the temporary toilet, the iron cover 90 provided at the inspection port 88 is removed, and the inspection port 88 is opened. Here, as described above, the pipe joint 32 is piped inside the storage tank 24 at a position overlapping the inspection port 88 in plan view. The joint body 34 of the pipe joint 32 is provided with a guide portion 38 extending to the vicinity of the ground, and a first opening 40 is provided at the upper end portion of the guide portion 38. That is, the first opening 40 is located near the ground below the inspection port 88. Therefore, when opening the inspection port 88, the operator can easily find the first opening 40, and the operations described below can be easily performed from the ground. Next, a hand is inserted into the inspection port 88 and the binding band 54 wound around the pipe joint 32 is removed. Then, the first lid 42 is removed from the first opening 40 by gripping the knob portion 42 c of the first lid 42. Then, a communication space that communicates the external space and the internal space of the pipe joint 32 appears. Hereinafter, a method of removing the second lid 48 from the second opening 46 using this communication space will be specifically described with reference to FIG.

  First, the stopper rod 56 that has been installed in the elevating step 70 is taken out. Then, the horizontal bar portion 56 a of the opening rod 56 is gripped, and the vertical bar portion 56 b is inserted into the first opening 40 as shown in FIG. Then, since the vertical bar portion 56b is appropriately guided by the guide portion 38 formed in an elongated cylindrical shape, as shown in FIG. 10 (B), the front end portion of the vertical bar portion 56b is directly connected to the second lid 48. The stopper rod 56 is inserted until it comes into contact with the back surface. Then, when the second lid 48 is projected from above at the tip of the vertical bar portion 56b, the second lid 48 is detached downward from the second opening 46 as shown in FIG. Thereby, the second opening 46 is opened downward. At this time, since the second lid 48 is moored to the joint main body 34, that is, the drain pipe 14 by the wire 52, the second lid 48 is prevented from falling to the bottom of the storage tank 24. Since the second lid 48 is suspended at a position away from the opening of the second opening 46 in the horizontal direction, the second lid 48 does not cover the second lid 48 even if sewage is discharged from the second opening 46.

  As described above, by providing the drain pipe 14 with the guide portion 38, the stopper rod 56 is appropriately guided to the second lid 48, and the second lid 48 can be easily removed from the ground. .

  After removing the second lid 48 and opening the second opening 46 downward, the first lid 42 and the iron lid 90 are returned, and the first opening 40 and the inspection port 88 are closed. To the state.

  Then, in the same manner as described above, cleaning water for cleaning the filth accumulated in each manhole 12 is supplied to the water storage tank 72, the gate valve 74 is opened at an appropriate timing, and the water in the water storage tank 72 is supplied. Into the upstream pipe end of the first drain pipe 14a.

  Then, the wastewater containing the water sent from the water storage tank 72 and the waste discharged into the manhole 12 flows down the first drain pipe 14a embedded at a predetermined gradient at a predetermined speed, and FIG. ), It is transported to the position of the second opening 46, and is smoothly guided downward along the curved surface shape of the base portion 46b on the upstream side of the second opening 46, and is directly dropped by natural fall. 2 is discharged from the opening 46. This prevents the wastewater from jumping over the second opening 46 and going to the existing sewage pipe 26. That is, overflow from the first drain pipe 14a to the second drain pipe 14b is prevented. And the waste_water | drain discharged | emitted from the 2nd opening part 46 is guide | induced directly to the inside of the storage tank 24, and is stored.

  Thereafter, when the existing sewage pipe 26 is restored, the gate valve 62 is opened so that the wastewater stored in the storage tank 24 flows into the third drainage pipe 58 as shown in FIG. 3 Drain from the drain pipe 58 to the existing sewer pipe 26.

  However, instead of discharging the waste water stored in the storage tank 24 from the third drain pipe 58 to the existing sewage pipe 26, a suction hose of a vacuum car or the like is inserted into the storage tank 24 from the inspection port 88. Then, the suction hose may be used for collection in a collection tank of a vacuum car.

  Further, when the existing sewer pipe 26 becomes usable again, such as when the existing sewer pipe 26 is restored, the first and second openings 40 and 46 are returned to the original state (first state), and the temporary toilet Can be used as they are. Specifically, the first lid 42 is attached to the first opening 40, the second lid 48 is attached to the second opening 46, and the first and second lids 42 and 48 are pressed from outside. A binding band 54 is wound around the joint 32. As a result, the wastewater is conveyed directly to the existing sewer pipe 26 through the first and second drain pipes 14a and 14b.

  As described above, in the system 10 of this embodiment, in the event of a disaster, whether the wastewater containing the filth collected in each manhole 12 is discharged into the existing sewer pipe 26 or stored in the storage tank 24 is It is possible to select according to the situation of the water pipe 26.

  That is, when the existing sewage pipe 26 can be used at the time of a disaster, the first and second drain pipes 14a and 14b are connected by the pipe joint 32, and the first and second openings 40 and 46 are sealed (first). 1), the waste water containing the filth collected in each manhole 12 can be directly discharged to the existing sewer pipe 26.

  On the other hand, in the event of a disaster, when the existing sewer pipe 26 cannot be used, or when it is unclear whether the existing sewer pipe 26 can be used, etc., communication is possible when the first lid 42 is removed from the first opening 40. By simply removing the second lid 48 from the second opening 46 using the space (to enter the second state), the second opening 46 is opened downward, and the wastewater containing dirt accumulated in each manhole 12 is discharged. Can be discharged into the storage tank 24 and stored. Further, since only the simple operation of removing the first and second lids 42 and 48 is performed, the operator can easily work from the ground without getting down into the storage tank 24. Therefore, the workability when starting to use the storage tank 24 is dramatically improved.

  In particular, in this embodiment, the guide portion 38 that rises up to the vicinity of the ground is provided at the zenith portion of the drain pipe 14, and the first opening 40 is provided at the upper end portion of the guide portion 38. Is properly guided to the second lid 48, and the second lid 48 can be more easily removed from the ground. Further, since the first opening 40 is close to the ground, the operator can easily find the first opening 40 and the first lid 42 can be easily removed.

  Further, since the base portion 46b on the upstream side of the second opening 46 is formed in a curved shape that curves downward, the drain pipe is in the second state in which the second lid 48 is removed from the second opening 46. The drainage flowing through 14 is smoothly guided downward in the second opening 46, and the drainage is prevented from overflowing into the existing sewer pipe 26. Therefore, the wastewater can be more appropriately discharged into the storage tank 24.

  Here, the downward slope at the base portion of the second opening portion 46 (the second opening portion 46 is formed in a curved shape) is realized by removing the second lid 48 downward. It is a thing. In other words, in the case of a lid that is removed upward, if the curved second opening 46 is employed, it is difficult to pull up the second lid 48 when the second lid 48 that has been removed is caught. . Therefore, in this embodiment, by adopting the second lid 48 to be removed downward, the second lid 48 can be easily removed even if the second opening 46 is formed in a curved tube shape.

  Further, the second lid 48 can be easily removed from the ground simply by protruding from above with the stopper rod 56, so that the operator does not have to enter the storage tank 24 to work. Further, the second lid 48 does not need to be pulled up to the ground, but is simply dropped, so the first opening 40 may have a small diameter that allows the opening rod 56 to pass.

  Furthermore, since the second lid 48 is connected to the joint body 34, that is, the drain pipe 14 by the wire 52 (an anchoring means), the second lid 48 is pushed by a plug bar 56 from above. Even if it is removed downward, the second lid 48 is moored to the joint body 34, and the second lid 48 is prevented from dropping to the bottom of the storage tank 24. Thereby, the loss of the second lid 48 is prevented. Further, the second lid 48 is prevented from clogging the third drain pipe 58 and the suction hose when the drainage stored in the storage tank 24 is discharged.

  Further, since the second lid 48 is suspended at a position away from the opening of the second opening 46 in the horizontal direction, even if sewage is discharged from the second opening 46, the second lid 48 is not covered with the second lid 48. Absent.

  Furthermore, in the second state in which the storage tank 24 is provided so as to receive the drainage from the second opening 46 and the second lid 48 is removed from the second opening 46, the drainage is stored from the second opening 46. Since it is discharged directly to the tank 24, there is no need to provide a separate pipe, and the configuration of the system 10 can be simplified.

  Further, the system 10 including the first opening 40 and the second opening 46 can be easily constructed only by incorporating the pipe joint 32 having the first opening 40 and the second opening 46 into the drain pipe 14. it can.

  In the above-described embodiment, a rubber ring type lid is used as the second lid 48. However, the second lid 48 may be in any form as long as the second opening 46 can be opened and closed. Is not particularly limited.

  For example, a general-purpose turn-up lid may be used as the second lid 48. In this case, the second lid 48 is rotated by the opening rod 56, the screw is removed, and the second lid 48 is removed downward.

  For example, as shown in FIGS. 12 and 13, a general-purpose short tubular ribbed tube 48 i provided with a top plate 48 j can be used as the second lid 48. In this case, the top plate 48 j serves as a lid body that seals the second opening 46, and the ribbed tube 48 i serves as a fitting portion that fits into the second opening 46.

  Specifically, the top plate 48j is a disk-shaped member formed of synthetic resin or the like, and is provided so as to close an opening formed at one end of the ribbed tube 48i. The ribbed tube 48i and the top plate 48j are joined by welding or the like. Also, the ribbed tube 48i is provided with a rubber ring 50 between the ribs (grooves) formed on the outer peripheral surface thereof, and is formed so that two attachment holes 48k for attaching the wire 52 are arranged. Furthermore, two substantially rectangular notches 48l are formed at the lower end of the ribbed tube 48i at intervals of 180 degrees so as to face each other. The notch 48l is used as a positioning portion for aligning the circumferential position of the second lid 48 when the second lid 48 is attached to the second opening 46, and is provided in the second opening 46. Marks such as notches (not shown) and their positions are aligned. Further, the binding band 54 (see FIG. 5) for preventing the second lid 48 from falling is attached so as to pass through the notch 48l, and the notch 48l is a regulation for preventing lateral displacement of the binding band 54. Also used as a part.

  Further, a drain hole 48m penetrating the top plate 48j in the thickness direction is formed in the peripheral portion of the top plate 48j. The drainage device 110 is provided in the drainage hole 48m. The water draining device 110 includes, for example, a vertical tubular pipe part 112 whose upper end is connected to the water drain hole 48m by adhesive bonding or the like, and an open / close valve 114 that can open and close a pipe line in the pipe part 112. A known ball valve or the like may be used as the opening / closing valve 114. Further, a display plate 116 described as “normally closed” or the like is attached to the tube portion 112 using a binding band or the like.

  As shown in FIG. 12, the second lid 48 has a top plate 48j on the upper side, and the drain holes 48m and the drain device 110 are located downstream in the second opening 46 (the left side in FIG. 12). The second opening 46 is mounted so as to be disposed at the position of). At this time, the notch 48l is used as a positioning portion. Further, after the second lid 48 is attached, the binding band 54 is wound around the pipe joint 32 so as to pass through the notch 48l.

  Here, the water draining device 110 described above is used at the time of use training or inspection of the system 10, and the open / close valve 114 is basically in a closed state as indicated on the display board 116. It will be left as it is. Briefly, when the system 10 is used for training (disaster prevention training) or when the system 10 is inspected about once a year, water flows into the drain pipe 14. At this time, part of the water flowing through the drain pipe 14 may accumulate in the second opening 46 above the second lid 48. If the use training or the like is finished in such a state as it is, there is a possibility that the water accumulated in the second opening 46 will be rotted or a pest such as a bow flutter may be generated in the accumulated water. Therefore, after the water has flowed into the drain pipe 14, the water accumulated in the second opening 46 is drained by opening the open / close valve 114 of the drain device 110. This prevents water from remaining in the second opening 46. In addition, after draining is completed, the opening / closing valve 114 of the draining device 110 is returned to the closed state.

  By providing the drain device 110 on the second lid 48 as in the embodiment shown in FIG. 12, even if water accumulates inside the second opening 46, the water can be removed appropriately. The water is prevented from remaining in the second opening 46. Therefore, it is possible to prevent the accumulated water from rotting and the generation of pests in the accumulated water, and the hygienic state of the system 10 can be appropriately maintained.

  The tube member used as the fitting portion of the second lid 48 need not be limited to the ribbed tube 48i, and may be, for example, a straight tube without a rib (plain tube). Further, the water draining device 110 is not limited to the second lid 48 configured as shown in FIG. 13, but a second lid having another configuration such as a general-purpose lid or a turn-up lid as shown in FIG. 7. The lid 48 can also be provided as appropriate. Further, the water draining device 110 is not necessarily provided on the second lid 48 and may be provided on the side wall of the second opening 46. In this case, for example, a drain hole is formed in the downstream side wall of the second opening 46 at a height position along the top surface of the top plate 48j of the second lid 48. And it is good to provide the drainage apparatus 110 which has the reverse L-shaped or horizontal tubular pipe part 112 and the opening-and-closing valve 114 with respect to this drainage hole.

  FIG. 14 shows another embodiment of the present invention. In the above-described embodiment, the second lid 48 that is removed downward is provided. However, the present invention is not limited to this. For example, as shown in FIG. 14, the second opening 46 may be sealed by a second lid 78 that is removable upward. Hereinafter, specific description will be given with reference to FIGS. 14 to 19, but the same reference numerals are used for the same parts as in the above-described embodiment, and the description thereof is omitted or simplified.

  As shown in FIG. 14, in the system 10 of this embodiment, the storage tank 24 is provided in the piping path of the drain pipe 14. The first drain pipe 14a is inserted into the through hole 24b formed in the uppermost portion of the upstream side wall 24a of the storage tank 24, and is located on the downstream side wall 24a and at a predetermined position lower than the first drain pipe 14a. The second drain pipe 14b is inserted through the formed through hole 24b. Further, an inspection port 88 protruding vertically upward is provided on the upper surface of the storage tank 24, and an iron lid 90 is provided in the inspection port 88. And the pipe joint 32 is provided under this inspection port 88, and it pipes in the position which overlaps with the inspection port 88 by planar view. The pipe joint 32 is provided in the reservoir 24 so as to connect the first drain pipe 14a and the second drain pipe 14b with a gradient substantially equal to that of the first and second drain pipes 14a and 14b. A part of the drainage pipe 14 is configured together with the first and second drainage pipes 14a and 14b.

  As shown in FIGS. 15 to 17, the pipe joint 32 includes a straight tubular joint body 34, and an adhesive receiving port 36 that receives the ends of the first and second drain pipes 14 a and 14 b at both ends thereof. Are integrally formed.

  The joint body 34 of the pipe joint 32, that is, the drain pipe 14 is provided with a first opening 40 that opens upward. In this embodiment, a cylindrical guide part 38 having an elliptical cross section rising up to the vicinity of the ground is provided at the top of the joint body 34, and a first opening 40 is formed at the upper end of the guide part 38. The size of the guide portion 38 and the first opening portion 40 is set such that a second lid 78 described later can be removed. A first lid 42 is detachably provided at the tip of the first opening 40. Further, a second opening 46 that branches into a short tubular shape is provided at a position facing the first opening 40, that is, at the bottom of the joint body 34 so as to open downward. The second opening 46 is an opening for guiding the wastewater to the storage tank 24 and branches from the joint body 34 vertically downward. The base portion (base end portion) of the second opening 46 is formed in a curved shape that increases in diameter in the axial direction of the joint body 34 toward the joint body 34, and the base portion 46 b on the upstream side of the second opening 46. Is a curved surface that curves downward. The second opening 46 is detachably provided with a second lid 78 for sealing the internal passage.

  As shown in FIG. 18, the second lid 78 is a water stop cock formed of, for example, hard vinyl chloride, and has an outer surface 78 a along the inner surface 46 a of the second opening 46. The upper surface 78b of the second lid 78 is formed in a concave shape that is curved with the same curvature as the tube bottom of the drainage pipe 14, and the upper surface of the second lid 78 and the tube bottom of the drainage pipe 14 are surfaces without a step. First, that is, smoothly continuous (see FIGS. 16 and 17). Further, two holes 80 are formed on the upper side of the second lid 78 at opposing positions. The hole 80 is used when the second lid 78 is extracted from the second opening 46. In this embodiment, a chain 68 extending to the vicinity of the first opening 40 is connected in advance to the hole 80, and the second lid 78 is removed upward by pulling up the chain 68. The raised second lid 78 may be taken out on the ground or stored in the guide portion 38. A groove 78c extending in the circumferential direction is formed in the lower portion of the outer surface 78a of the second lid 78. A rubber ring 82 is provided in the groove 78 c, and the rubber ring 82 seals between the inner side surface 46 a of the second opening 46 and the outer side surface 78 a of the second lid 78.

  In this embodiment, when the existing sewer pipe 26 can be used in a disaster, the second opening 46 is sealed by the second lid 78 and the first opening 40 is The first lid 42 is sealed (first state). In the first state, the drainage passes through the first drainage pipe 14 a, flows through the upper surface 78 b of the second lid 78 in the second opening 46, and is conveyed to the existing sewer pipe 26 as it is. At this time, since the upper surface 78b of the second lid 78 is flush with the bottom of the drainage pipe 14 without any step, the drainage smoothly flows in the pipe line near the second opening 46. Further, the hole 80 formed in the second lid 78 is also a simple hole, so that it does not interfere with the flow of drainage.

  On the other hand, as shown in FIG. 19, when an existing sewer pipe 26 cannot be used due to a disaster such as an earthquake, or when it is unclear whether the existing sewer pipe 26 can be used, It is discharged into the storage tank 24 without being discharged into the water pipe 26.

  More specifically, first, the iron lid 90 is removed and the inspection port 88 is opened. At this time, the first opening 40 is located near the ground below the inspection port 88. Next, a hand is inserted into the inspection port 88 from the ground, and the first lid 42 is removed from the first opening 40. Then, since the communication space which connects the external space and the internal space of the pipe joint 32 appears, the 2nd lid | cover 78 is removed upward from the 2nd opening part 46 using this communication space. As a result, the second opening 46 is opened downward in the storage tank 24.

  In addition, when removing the 2nd cover 78 from the 2nd opening part 46, it is good to pull up the chain 68 connected with the hole 80 from the top, and to remove it. By utilizing the hole 80 and the chain 68, the second lid 78 can be easily removed from the second opening 46.

  In the state where the second opening 46 is opened downward (second state), as shown in FIG. 19, the waste water is conveyed to the position of the second opening 46 through the first drain pipe 14a, The second opening 46 is smoothly guided downward along the curved surface shape of the base portion 46b on the upstream side, and is directly discharged from the second opening 46 by natural fall. And the waste_water | drain discharged | emitted from the 2nd opening part 46 is guide | induced directly to the inside of the storage tank 24. FIG.

  When the existing sewage pipe 26 becomes usable again, such as when the existing sewage pipe 26 is restored, the operator seals the second opening 46 from the ground with the second lid 78 and the first By simply attaching the first lid 42 to the opening 40, the drainage can be directly conveyed to the existing sewer pipe 26 through the first and second drain pipes 14a and 14b. Therefore, when switching from the second state to the first state, the operator does not have to go down into the storage tank 24.

  In the embodiment shown in FIG. 14 as well, similarly to the embodiment shown in FIG. 1, in the event of a disaster, the second lid 78 is removed using the communication space that is created when the first lid 42 is removed (second The wastewater discharged into each manhole 12 can be discharged into the storage tank 24 only by setting the state). Moreover, since only the simple operation | work of removing the 1st and 2nd lid | covers 42 and 78 is performed, an operator can work easily from the ground, without getting down to the inside of the storage tank 24. FIG. Therefore, the workability when starting to use the storage tank 24 is dramatically improved.

  Further, in the embodiment shown in FIG. 14, when switching from the second state to the first state, it is only necessary to attach the second lid 78 and the first lid 42 from the ground. There is no need to get off. Therefore, workability is further improved.

  The second lid 48 is not limited to one that is removed upward or downward, and a gate valve (gate valve) may be used. As the gate valve, a known electromagnetic valve that is electrically controlled to be opened / closed can be used, or a manual valve that is manually opened / closed by an operator can be used.

  Next, a system 10 that is another embodiment of the present invention will be described with reference to FIGS. In each of the above-described embodiments, the waste water is directly discharged from the second opening 46 provided in the drain pipe 14 to the storage tank 24. However, in the embodiment shown in FIG. 14 is a drainage branch that is installed at a position away from 14 and receives drainage from the second opening 46 and transports it to the storage tank 24 in a state where the second lid 48 is removed from the second opening 46 (second state). The difference is that a tube 84 is further provided. Hereinafter, a specific description will be given with reference to FIGS. 20 to 22, but the same reference numerals are used for the same parts as in the above-described embodiment, and the description thereof is omitted or simplified.

  As shown in FIG. 20, the system 10 of this embodiment is a system that is used as a temporary toilet with a toilet attached in a disaster, and includes a plurality of manholes 12 and drain pipes 14. The drain pipe 14 is a pipe that connects each manhole 12 and the existing sewer pipe 26, and is connected to each manhole 12 by being piped upstream of a pipe joint 32 to be described later, and the pipe joint 32. And a second drain pipe 14b connected to the existing sewer pipe 26 at the downstream end. A storage tank 24 is embedded in the basement away from the piping path of the drain pipe 14 that connects each manhole 12 and the existing sewer pipe 26. The pipe path of the drain pipe 14 is provided with a pipe joint 32 that connects the first drain pipe 14a and the second drain pipe 14b.

  The pipe joint 32 includes a straight tubular joint body 34, and adhesive receptacles 36 for receiving the ends of the first and second drain pipes 14 a and 14 b are formed at both ends thereof. The joint body 34 is provided with a short cylindrical first opening 40 that opens upward. In this embodiment, an elongated cylindrical guide portion 38 is provided at the top of the joint body 34, and a first opening 40 is formed at the upper end of the guide portion 38. A first lid 42 is detachably provided at the distal end portion of the first opening 40. A second opening 46 branched into a short tubular shape is provided at a position facing the first opening 40 so as to open downward. The second opening 46 diverges from the joint body 34 in an oblique direction, and then curves and extends downward. A base portion (base end portion) 46 b on the upstream side of the second opening 46 is formed in a curved surface that curves downward as it goes from the upstream side to the downstream side of the joint body 34. A second lid 48 is detachably provided at the distal end portion of the second opening 46. The surface of the second lid 48 is provided with a gripping portion 48e protruding outward, and the second lid 48 is connected to the joint body by a wire (an anchoring means) 52 attached to the gripping portion 48e. 34. In normal times, a binding band 54 is wound around the pipe joint 32 so as to press the first and second lids 42 and 48 from the outside.

  As shown in FIG. 21, a pit 86 is provided in the piping path of the drain pipe 14 so as to cover the periphery of the pipe joint 32. The pit 86 is for forming a space around the first and second openings 40 and 46 so that the first and second lids 42 and 48 can be opened and closed. It is formed in a cylindrical shape. An inspection port 88 is provided in the top wall of the pit 86, and an iron lid 90 is provided in the inspection port 88. The pits 86 are basically made of concrete, but the material is not particularly limited, and can be formed of synthetic resin or metal. The size of the pit 86 may be at least large enough to allow the first and second lids 42 and 48 to be opened and closed inside. For example, the height is 1500 mm, and the width and depth are 800 mm. Is done. The depth position of the drain pipe 14 passing through the inside of the pit 86 is set to about 700 mm underground, for example.

  Returning to FIG. 20, in this embodiment, in a state where the second lid 48 is removed from the second opening 46 (second state), drainage from the second opening 46 is received and drained to the storage tank 24. A drainage branch pipe 84 is provided. The drainage branch pipe 84 is formed by appropriately connecting, for example, a hard vinyl chloride pipe or a joint. Specifically, as shown in FIG. 21, the upstream end of the drainage branch pipe 84 is disposed in the pit 86, and the upstream end of the drainage branch pipe 84 is open to the upper side. A portion 92 is formed.

  The receiving part 92 is a part which is arrange | positioned under the 2nd opening part 46, and receives the waste_water | drain discharged | emitted from the 2nd opening part 46 at the time of a 2nd state. The inner diameter of the receiving portion 92 is set larger than the inner diameter of the second opening 46, and is 200 mm, for example. Thereby, waste water is appropriately discharged | emitted with respect to the receiving part 92 from a 2nd opening part. The drainage branch pipe 84 penetrates the side wall of the pit 86 and extends in the direction of the storage tank 24 with a predetermined downward gradient, and its downstream end is connected to the upper part of the storage tank 24. The piping path of the drainage branch pipe 84 is not particularly limited, but it is desirable that the draining branch pipe 84 is connected to the storage tank 24 through a path having the shortest distance.

  In this embodiment, when the existing sewer pipe 26 can be used at the time of disaster, the second opening 46 is sealed by the second lid 48 and the first opening 40 is the first as shown in FIG. It is set as the state (1st state) sealed by the lid | cover 42 of this. In the first state, the drainage passes through the first drainage pipe 14a, flows through the upper surface of the second lid 48 in the second opening 46, and further passes through the second drainage pipe 14b to the existing sewage pipe 26 as it is. Is done.

  On the other hand, as shown in FIG. 22, in the event of a disaster, when the existing sewage pipe 26 cannot be used, or when it is unclear whether the existing sewage pipe 26 can be used, etc., the second lid 48 through the second lid 48 Is removed (second state), the second opening 46 is opened downward, and the wastewater flows downward through the first drain pipe 14a in the second opening 46, and further drained. It is discharged into the storage tank 24 through the branch pipe 84 and temporarily stored there.

  More specifically, when the existing sewage pipe 26 cannot be used, first, the iron lid 90 is removed, the inspection port 88 is opened, a hand is inserted into the inspection port 88 from the ground, and it is wound around the pipe joint 32. Remove the cable tie. Then, the first lid 42 is removed from the first opening 40, and the second lid 48 is removed using the communication space formed at that time. Accordingly, the second opening 46 is opened downward, and the second opening 46 and the receiving portion 92 are indirectly connected via a predetermined space. At this time, the second lid 48 is moored to the joint main body 34 by the wire 52 and is prevented from falling into the receiving portion 92 or the bottom portion of the pit 86.

  In a state where the second opening 46 is opened downward (second state), the drainage is conveyed to the position of the second opening 46 through the first drain pipe 14a, and the second opening 46 It is smoothly guided downward along the curved surface shape of the base portion 46b on the upstream side, and is directly discharged from the second opening 46 by natural fall. The drainage from the second opening 46 is indirectly drained with respect to the receiving portion 92 of the drainage branch pipe 84, transported to the inside of the storage tank 24 through the drainage branch pipe 84, and stored in the storage tank 24.

  In the embodiment shown in FIG. 20 as well, as in the embodiment shown in FIG. 1, the second lid 48 is removed using the communication space formed when the first lid 42 is removed (set to the second state). Only the drainage discharged into each manhole 12 can be discharged into the storage tank 24. Further, since only the simple operation of removing the first and second lids 42 and 48 is performed, the operator can easily work from the ground without getting down into the storage tank 24. Therefore, the workability when starting to use the storage tank 24 is dramatically improved.

  In the embodiment shown in FIG. 20, in the second state where the second lid 48 is removed from the second opening 46, the drainage flowing out from the second opening 46 is stored in the storage tank 24 via the drainage branch pipe 84. Transport to. Therefore, since the installation position of the storage tank 24 can be set freely, it is difficult to install the storage tank 24 in the piping path of the drain pipe 14 (for example, there is no installation space for the storage tank 24 in the piping path of the drain pipe 14). Case).

  Further, in this embodiment, since the first and second openings 40, 46 are provided inside the pit 86, when the inspection port 88 is opened and the first and second lids 42, 48 are removed, It is possible to avoid a danger that an operator accidentally falls into the storage tank 24. In addition, removal and maintenance of the first and second lids 42 and 46 are facilitated.

  In the embodiment shown in FIG. 20, the upstream end of the drainage branch pipe 84 is disposed in the pit 86 so that the drainage from the second opening 46 is directly received by the drainage branch pipe 84. It is not limited to this. For example, as shown in FIG. 23, the pit 86 itself may receive the drainage from the second opening 46, and drain the drainage from the pit 86 to the drainage branch pipe 84. That is, the pit 86 may function as a receiving portion provided at the upstream end portion of the drainage branch pipe 84. In this case, for example, the bottom 86a of the pit 86 may be formed in a tapered shape, and the upstream end of the drainage branch pipe 84 may be connected to a through hole formed in the center of the bottom 86a. As a result, the drainage received at the pit 86 flows smoothly into the drainage branch pipe 84.

  Although not shown, the pit 86 may be provided as a so-called manhole, and this manhole may function as a receiving portion provided at the upstream end of the drainage branch pipe 84.

  In the embodiment shown in FIG. 20, in the event of a disaster, the drainage is indirectly drained from the second opening 46 provided in the pipe joint 32 to the receiving portion 92 provided at the upstream end of the drainage branch pipe 84. However, it is not limited to this. For example, if the pipe joint 32 having the second lid 78 of the type shown in FIG. 16 is used, the disaster drainage storage tank 24 is installed at a position away from the drainage pipe 14 and the drainage branch In the configuration in which the pipe 84 is provided (see FIG. 20), the second opening 46 and the drainage branch pipe 84 can be directly connected in advance. The second opening 46 is sealed with the second lid 78 in normal times, and the second lid 78 is removed upward in the event of a disaster and the second opening 46 is opened downward. It is good to do so.

  In each of the above-described embodiments, one storage tank 24 is provided, but a plurality of storage tanks 24 may be provided. In this case, when one storage tank 24 becomes full, it is good to switch to the other storage tank 24 and to store drainage.

  Although not shown in the drawings, as another embodiment of the present invention, a shallow small space that protrudes from the upper portion of the storage tank 24 is formed, and the first opening 40 is disposed in the small space. You can also. For example, a rectangular parallelepiped small space is formed in the storage tank 24 so as to protrude laterally from the upper part thereof. The small space is shallower than other portions of the internal space of the storage tank 24, and the bottom surface of the small space is an inclined surface. Further, the drain pipe 14 is piped so as to penetrate through the small space, and the first opening 40 is provided in a portion passing through the small space.

  Thus, when the first and second lids 42, 48, and 78 are removed by forming a shallow small space in the storage tank 24 and disposing the first opening 40 in the small space, It is possible to avoid a risk that a person accidentally falls into the storage tank 24 from the inspection port 88.

  In each of the above-described embodiments, a storage for storing equipment such as the toilet 16 and the temporary hut 18 is installed near the temporary toilet, and the storage such as the toilet 16 and the temporary hut 18 is accommodated in the storage. However, the storage tank 24 may also be used as a casing for storing fixtures such as the toilet 16 and the temporary shed 18. By using the storage tank 24 of the system 10 as a casing for storing fixtures such as the toilet bowl 16 and the temporary hut 18, a temporary toilet can be used as long as the system 10 functions without being damaged. is there. That is, the system 10 can be completed by itself.

  In particular, in the above-described embodiment, since the storage tank 24 is formed of resin concrete, water-tightness can be secured in the storage tank 24, and before the inside of the storage tank 24 is selected as a wastewater treatment destination. In this state, since the internal space of the storage tank 24 is sealed in a watertight manner, the inside of the storage tank 24 can be kept dry. Therefore, fixtures such as the toilet bowl 16 and the temporary shed 18 can be stored permanently and appropriately.

  In the above-described embodiment, the water taken from the rainwater storage tank 76 and other water sources by the water supply pump is supplied to the water storage tank 72, and the water is sent from the water storage tank 72 to the first drain pipe 14a. It is not necessary to be limited to this, and the water taken by the water supply pump may be sent directly to the first drain pipe 14a.

  Further, the third drain pipe 58 for sending the drainage water inside the storage tank 24 to the existing sewer pipe 26 is not necessarily provided, and the third drain pipe 58 and the gate valve 62 may not be provided in the storage tank 24. In the case where the third drain pipe 58 and the gate valve 62 are not provided, when removing drainage temporarily stored in the storage tank 24, a suction hose of a vacuum car or the like is inserted into the storage tank 24 from the inspection port 88, Use a suction hose to collect in the collection tank of the vacuum car. An inspection port for inserting a vacuum hose or the like may be provided separately from the inspection port 88 or may be used as the inspection port 88.

  Further, in each of the above-described embodiments, each manhole 12 and the first drain pipe 14a are disposed with substantially the same gradient along the same straight line. However, the present invention is not limited to this. A part of the drain pipe 14a may be provided with a flow accelerating portion that accelerates the flow speed of the drainage, such as a step between the upstream side and the downstream side.

  Further, in each of the above-described embodiments, the drain pipe 14 passing through the inside of the storage tank 24 has a downward slope, but the slope of the drain pipe 14 passing through the inside of the storage tank 24 may be horizontal. .

  Furthermore, in each of the above-described embodiments, a ribbed pipe is used as the first drain pipe 14a. However, instead of this, a cylindrical pipe having no rib may be used. Moreover, although the small manhole with a rib was used as the manhole 12, it may replace with this and may use the small manhole in which the rib is not formed.

  Furthermore, in each of the above-described embodiments, the first and second drain pipes 14a and 14b are inserted into the through hole 24b of the side wall 24a of the storage tank 24, and the through hole 24b and the first and second drain pipes 14a are inserted. , 14b is filled with the bonding material 30. However, the bonding structure of the penetrating portion is not limited to this, and may be, for example, rubber ring bonding.

  In the above-described embodiment, the fixing plate 100 is formed of a synthetic resin such as vinyl chloride. However, the material of the fixing plate 100 is not particularly limited.

  Furthermore, although illustration is abbreviate | omitted, the thickness which can be fitted between the ribs (groove | channel) formed in the outer peripheral surface of the 1st and 2nd drain pipes 14a and 14b may be sufficient as the fixing plate 100. In that case, the inner diameter of the hole of the fixing plate 100 is set to be substantially the same as or slightly smaller than the outer diameter of the groove. By doing so, when the first and second drain pipes 14a and 14b are fixed by the fixing plate 100, the ribs serve as stoppers, and the axial movement of the first and second drain pipes 14a and 14b is more appropriately performed. Be regulated.

  In the above-described embodiment, the second opening 46 is formed in a short tube shape and the base portion thereof is formed in a curved surface shape. However, the present invention is not limited to this, and the second opening 46 is a straight line extending with the same diameter. It may be formed in a tubular shape. The second opening 46 is not necessarily formed in a short tubular shape, and may be a simple opening (notch) formed in the joint body 34.

  In the present invention, the phrase “opening downward” of the second opening 46 does not mean strictly the case of opening vertically downward, but also includes the case of opening downward substantially. Further, the base portion (base end portion) of the second opening 46 may be opened downward. For example, the base portion of the second opening 46 is downward, but the distal end portion is bent and opened sideways. Such a mode is also included in the case where the second opening 46 opens downward. Similarly, the phrase “opening upward” of the first opening 40 does not mean strictly when opening vertically upward, but also includes when opening substantially upward.

  It should be noted that the specific numerical values such as the dimensions described above are merely examples, and can be appropriately changed according to necessity such as product specifications.

10 ... Temporary toilet system 12 ... Manhole 14 (14a, 14b) ... Drain pipe (first drain pipe, second drain pipe)
DESCRIPTION OF SYMBOLS 16 ... Toilet 24 ... Disaster drainage storage tank 26 ... Existing sewer pipe 32 ... Pipe joint 34 ... Joint main body 38 ... Guide part 40 ... 1st opening part 42 ... 1st cover 46 ... 2nd opening part 46b ... Upstream side Base part 48,78 ... 2nd lid 56 ... Opening stick 84 ... Drainage branch pipe 110 ... Drainage device

Claims (8)

A temporary toilet system that is used as a temporary toilet with a toilet attached in a disaster,
A plurality of longitudinal pipe members embedded in the ground of the installation position of the toilet set in advance,
A drainage pipe disposed at a predetermined gradient and connecting the plurality of vertical pipe members and an existing sewer pipe;
Disaster drainage storage tank buried underground,
A first opening provided to open upward in the drain pipe;
A first lid detachably provided in the first opening;
A second opening for guiding the drainage to the disaster drainage tank, and a second opening for detaching the second drainage opening. A second lid removable using a communication space formed when the first lid is removed from one opening;
In the first state in which the second lid is attached to the second opening, drainage is discharged to the existing sewer pipe, and in the second state in which the second lid is removed from the second opening, the disaster Temporary toilet system in which wastewater is stored inside the wastewater storage tank.   2. The temporary toilet system according to claim 1, wherein the second lid is detached downward from the second opening, and further includes a mooring means for mooring the second lid to the drain pipe.   The temporary toilet system according to claim 2, wherein a base portion on the upstream side of the second opening is curved downward as it goes from the upstream side to the downstream side of the drain pipe. It further comprises a cylindrical guide portion that rises upward from the drain pipe,
The temporary toilet system according to claim 1, wherein the first opening is provided at an upper end portion of the guide portion. The disaster drainage reservoir is provided to receive drainage from the second opening,
The temporary toilet system according to any one of claims 1 to 4, wherein drainage is directly discharged from the second opening to the disaster drainage storage tank in the second state. The disaster drainage tank is provided at a position away from the drainpipe,
The temporary toilet system according to any one of claims 1 to 4, further comprising a drainage branch pipe that conveys drainage from the second opening to the disaster drainage storage tank in the second state. A pipe joint used for a drainage pipe of a temporary toilet system for disaster according to any one of claims 1 to 6,
Straight tubular fitting body,
A first opening provided to open upward in the joint body;
A first lid detachably provided in the first opening;
A second opening provided so as to open downward at a position facing the first opening; and a second opening provided detachably in the second opening, and the first lid is removed from the first opening A pipe joint provided with the 2nd lid which can be removed using the communication space which can be made.   The pipe joint according to claim 7, further comprising a water draining device having an open / close valve provided on a side wall of the second lid or the second opening.

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