JP5089566B2 - Drain - Google Patents

Description

  The present invention relates to a drainage basin disposed at a key point of a drainage pipeline.

Conventionally, as this kind of drainage, for example, there are the following. That is, this conventional one is provided with an inspection port for inspecting the interior of the main body, an inlet provided at the side part for allowing the drainage to flow in, and a side part for allowing the drained water to flow into the drainage main. (Refer to patent document 1). In addition, there is also a drainage basin referred to as a so-called drop basin, which is provided with an outlet at the lower part of the main body (see Patent Document 2). In such a drain, the inflow pipe is connected to the inflow port, and the outflow pipe is connected to the outflow port.
JP-A-10-212754 Japanese Utility Model Publication No. 6-71579

  By the way, such drainage basins are arranged at important points such as junctions and bends of drainage pipes, and function so that drainage catching, merging, direction change and relaying can be performed well, and drainage pipes It has a function to be used for maintenance and inspection.

  However, the above-described conventional drainage basins have only these functions. Therefore, for example, even if an abnormality such as a waste pipe is clogged with foreign matter such as dust, it does not have any function to cope with this, and as a result, the water level of the waste water rises, and as a result Will overflow from the inspection tube to the outside.

  Therefore, the present invention has been made in view of such a point, and the purpose of the present invention is a function that can quickly and appropriately respond to an abnormality such as defective drainage due to clogged drainage pipes. It is to provide drainage basin with.

  The drainage basin according to the present invention includes an inspection port provided in an upper part, an inlet port to which an inflow pipe is connected to allow the drainage to flow in, and a first outlet port to which the first outlet pipe is connected to allow the drainage to flow out. A bottom portion having an overflow hole for allowing the drainage to flow out in order to regulate an increase in the level of the drainage, and a discharge cylinder provided at a lower portion for discharging the drainage discharged into the overflow hole to the outside, the overflow hole Is provided at a position above the central axis of the first outlet.

  In such a drain, the normal drainage flows from the inflow pipe to the bottom through the inflow port, and is discharged from the first outflow port to the main drainage through the first outflow pipe. In such a normal time, the drainage flows so that the water level does not become higher than the central axis of the first outflow pipe. On the other hand, for example, if an abnormality such as the first outflow pipe or the main drainage is clogged with foreign matter such as dust, the outflow of drainage from the first outflow port is obstructed. The drainage water level will rise. However, since an overflow hole is provided at the bottom, when the water level of the drainage rises to the overflow hole beyond the central axis of the first outlet, the drainage is discharged to the outside from the overflow hole through the discharge cylinder. The

  As a result, it is possible to quickly cope with an abnormal increase in the level of the drainage water and to avoid a situation in which the water level of the drainage level increases. In addition, even if a large amount of drainage flows into the inspection port and eventually overflows from the inspection port, it is possible to extend the time until overflowing and reduce the amount of overflowing drainage. In addition, it can perform recovery work such as repairing abnormal parts.

  The “bottom” in the present invention means the entire part constituting the bottom part of the drainage basin.

  Further, a slope that slopes downward toward the inner side may be formed at the top of the bottom, and the overflow hole may be provided in the slope.

  According to this, when the water level of the wastewater rises above the central axis of the first outlet and reaches the slope, the wastewater is discharged to the outside through the discharge tube from the overflow hole provided in the slope. Is done. In this case, since the overflow hole is provided on the sloped slope, it is possible to satisfactorily avoid a situation where foreign matter such as dust stops on the slope and closes the overflow hole.

  Furthermore, it is also possible to form a second outlet in the lower part of the bottom portion so as to communicate with the discharge tube, and to detachably attach a lid to the second outlet.

  According to this, drainage flows out to the 1st outflow pipe via the 1st outflow port normally in the state where the 2nd outflow port was obstructed by the lid. On the other hand, for example, when an abnormality such as the clogging of foreign matter such as dust occurs in the drain pipe, the drainage cannot be handled only by the overflow hole, and the drainage water level rises, the lid The closed state of the second outlet by the body is released and opened. Thereby, a part of waste water which flowed into the inside is discharged outside through the second outlet and the discharge tube. As a result, the amount of waste water flowing out from the first outlet to the first outlet pipe decreases, so that the water level of the waste water in the tank is lowered. For this reason, it is possible to efficiently perform restoration work such as repair of an abnormal part.

  Further, the lid body may be provided with a lid body having a substantially C-shaped or U-shaped cross section that forms a flow path connecting from the inflow port to the first outflow port.

  According to this, when the lid is closed, the waste water that has flowed into the inlet from the inlet is formed in a substantially C-shaped or U-shaped cross section along the lid body that forms the flow path (invert). It flows to one outlet and is discharged to the drain main through the first outlet pipe. That is, the water flow is not disturbed by the lid, and the original smooth drainage flow from the inlet to the first outlet is satisfactorily maintained.

  Further, the inflow port and the first outflow port are arranged to face each other, the handle is provided with a handle, and the handle is in an axial direction connecting the inflow port and the first outflow port or perpendicular thereto. It may be arranged in the direction.

  According to this, it becomes possible to recognize in advance the position and direction of the handle of the lid. Therefore, for example, even when the handle is submerged and cannot be visually recognized when an abnormality occurs, the lid can be removed relatively easily.

  In addition, the lid body may be rotatably provided at the bottom so that the second outlet can be opened and closed.

  In this case, when the lid is rotated to open the second outlet, part of the drainage flows out to the discharge cylinder via the second outlet. In this way, by providing the lid so as to be rotatable at the bottom, it is not lost when the lid is attached or detached.

  Furthermore, when the lid is rotated to open the second outlet, the lid is arranged in front of the first outlet and restricts the outflow of drainage to the first outlet, or The first outlet may be closed.

  According to this, when an abnormality occurs that foreign matter such as dust is clogged in the drain pipe and the overflow hole alone cannot cope with this, the lid is rotated to open the second outlet. As a result, the lid body is arranged in front of the first outlet port, and the outflow of drainage to the first outlet port is restricted, or the first outlet port is closed by the lid body. For this reason, much waste water that has flowed into the inside flows out from the second outlet to the discharge tube, or all the waste water flows out from the second outlet to the discharge tube. As a result, restoration work such as repair of an abnormal part can be performed more efficiently.

  The drainage basin described above may be provided with an auxiliary drainage basin having a connection port connected to the discharge cylinder and having a third outlet for discharging the drainage water flowing in from the connection port to the outside. Good.

  According to this, the waste water that has flowed into the overflow hole or the second outlet is discharged to the outside through the discharge tube, the auxiliary drain connection port, and the third outlet.

  Furthermore, since the drainage basin according to the present invention has a very simple configuration, its production can be performed easily and inexpensively.

  As described above, according to the present invention, wastewater can be appropriately treated in the case where an abnormality such as dust is clogged in the drainage pipe. Can be performed efficiently.

  Hereinafter, an embodiment of a drainage basin according to the present invention will be described with reference to the drawings. FIG. 1 shows a drainage basin A according to this embodiment, wherein FIG. 1A is a plan view, FIG. 1B is a front sectional view, and FIG. 1C is a side sectional view.

  As shown in the figure, the main body 1 includes an inspection port 2 provided at the center of the upper part to connect the inspection cylinder, a bottom part 3 constituting a bottom part, and a discharge cylinder 7 provided at the lower part. The bottom 3 includes an inflow port 4 provided on one side to connect the inflow pipe, a first outflow port 5 provided on the other side facing the inflow port 4 to connect the first outflow pipe, In order to regulate the rise of the water level, it has a pair of overflow holes 6 through which the drainage can flow out, and a second outlet 8 provided in the center of the lower part in communication with the discharge tube 6. The overflow hole 6 is also in communication with the discharge cylinder 7. As shown in FIGS. 2B and 2C, the central axis P of the first outlet 5 is set to be slightly below the central axis Q of the inlet 4. Further, the second outlet 8 is disposed at a position below the central axis P of the first outlet 5.

  On both sides of the upper side of the bottom portion 3, slopes 9 are formed so as to incline downward toward the inward side, and the overflow holes 6 are provided in each slope 9. Moreover, the lower end part of the overflow hole 5 is set so that it may be located above the central axis P of a 1st outflow port.

  Usually, the second outlet 8 at the bottom 3 is closed by a lid 20. In this closed state, the lid body 21 is formed in a substantially C-shaped cross section as shown in FIG. 2C so as to form a flow path connecting from the inlet 4 to the first outlet 5. In addition, a substantially semi-circular handle 22 is provided at the upper center of the lid body 21. When the second outlet 8 is closed by the lid 20, the handle 22 is connected to the inlet 4 and the first inlet. It will be arranged in a direction perpendicular to the axial direction connecting the outlet 5. Further, a substantially cylindrical fitting convex portion 23 that can be fitted to the second outlet 8 is provided at the center of the lower surface of the lid body 21 so as to close the second outlet 8. The rubber seal ring 24 attached to the outer periphery of the seal 23 seals between the two. The main body 1 and the lid body 20 are made of a synthetic resin such as vinyl chloride or polypropylene. However, the specific material is not limited to this. Further, the shape of the lid body 11 is not limited to the shape of the cross section C. For example, it may be formed in the shape of a substantially U-shaped cross section, or may be formed in other shapes. The configuration of each part of the other lid 20 can be changed as appropriate.

  Although the drainage basin A according to this embodiment is configured as described above, it is possible to configure the drainage basin A with the auxiliary drainage basin B in consideration of the convenience of the subsequent piping work. is there. That is, as shown in FIG. 3, the auxiliary drainage basin B is provided with a connection port 30 in the upper part and a third outlet 31 for drainage outflow in the side part. The drainage basin C is formed by inserting and connecting the drainage cylinder 7 of the drainage basin A to the connection port 30. The auxiliary drainage basin B does not necessarily need to be configured separately from the drainage basin A, and may be configured to be integrally formed.

  The drainage basins A and C described above are used by being incorporated in, for example, the following drainage facilities. Such drainage equipment D is mainly used in facilities with relatively large scales such as schools and meeting places that are used as evacuation sites in the event of a disaster. It is not limited to this. Here, an example of use of drainage basin C will be described.

  As shown in FIGS. 4 and 5, the drainage equipment D is buried in the ground in the site X, the drainage basin C, the inflow pipe 40 inserted and connected to the inlet 4 of the bottom 3, and the first The first outflow pipe 41 inserted and connected to the outlet 5, the second outflow pipe 42 connected to the third outlet 31 of the auxiliary drain B, and the other end of the second outflow pipe 42 are connected. The storage tank 43 is provided. In the present embodiment, since the obstacle Z exists around the drain C and the inflow pipe 40, the second outflow pipe 42 is configured to avoid this. That is, the second outflow pipe 42 includes a straight pipe 44 inserted and connected to the third outlet 31, an elbow 45 connected to the straight pipe 44, and between the elbow 45 and the storage tank 43. It consists of a straight pipe 46 to be connected. The first outflow pipe 41 is connected to a sewage main pipe through a public basin arranged on the public road Y side. The capacity, shape, and the like of the storage tank 43 are set to an optimal size, shape, and the like in consideration of, for example, the type of installation facility and the installation space. A cylindrical portion 47 projects from the upper surface of the storage tank 43 in the vertical direction. As described above, since the drainage equipment D has a very simple overall configuration, it can be constructed inexpensively and easily.

  Note that an inspection cylinder 48 is connected to the inspection port 2 of the main body 1, and an upper portion thereof is closed by an inner lid 49. Further, in order to protect the inspection cylinder 48 and the inner lid 49, a protective lid 51 is arranged so as to cover the upper part thereof, and a load from the ground is supported by the protective lid 51. The protective lid 51 is supported by a substantially disk-shaped pedestal 50 embedded in the ground, whereby the load applied to the protective lid 51 is evenly distributed on the ground.

In the drainage equipment D having the above-described configuration, the drainage from the facility or the like is usually drained from the inflow pipe 40 into the main body 1 through the inlet 4 of the C and above the lid main body 21. Is further discharged from the first outlet 5 to the main drain through the first outlet pipe 41 and the public basin.
In this case, since the lid body 21 is formed in a substantially C-shaped cross section so as to form a flow path connecting from the inlet 4 to the first outlet 5, the water flow is disturbed by the lid 20. The original flow of drainage from the inlet 4 to the first outlet 5 is maintained well. In such a normal time, the waste water flows at a lower water level than the central axis P of the first outlet 5.

  On the other hand, for example, when foreign matter such as dust is clogged in the first outflow pipe 41, the outflow of the wastewater to the first outflow pipe 41 side is inhibited, so that the water level of the wastewater in the main body 1 further increases. become. When this is a relatively light clogging, there is no particular problem, but depending on the degree of clogging, the water level of the drainage may rise further beyond the central axis of the first outlet. However, since the overflow hole 6 is provided on the slope 9 of the bottom portion 3, when the water level of the drainage rises to the overflow hole 6, a part of the drainage flows out to the overflow hole 6. Further, the wastewater is discharged to the storage tank 43 through the discharge tube 7, the connection port 30 of the auxiliary drainage basin B, the third outlet 31, and the second outlet pipe 42.

  By providing the overflow hole 6 in the slope 9 in this manner, it is possible to respond early to an abnormal rise in the level of the drainage water, and to avoid the situation that the drainage overflows to the outside through the inspection port 2. It becomes possible. Even if a large amount of drainage flows into the inspection port 2 and the drainage overflows to the outside through the inspection port 2, it is possible to extend the time until overflowing and The amount can be reduced. Therefore, restoration work such as repair of an abnormal part can be performed efficiently.

  On the other hand, when the drainage of the drainage from the overflow hole 6 is not sufficient, the level of the drainage further rises. The drainage flows from the inspection port 2 of the main body 1 into the inspection cylinder 48 and eventually the inspection cylinder 48. The drainage will overflow. When such an abnormality is found, first, the protective lid 51 and the inner lid 49 of the base 50 are removed. Next, the handle 22 of the lid 20 is pulled up, and the lid 20 is detached from the second outlet 8 at the bottom 3 as shown in FIG. When the hand 22 does not reach, for example, a rod-like body having a hook at the tip may be used, and the hook may be hooked on the handle 22 and pulled up.

  In this case, the handle 22 of the lid 20 is arranged in the center of the bottom 3 and in a direction orthogonal to the axial direction connecting the inlet 4 and the first outlet 5. If it is recognized by the operator, or if the operator can recognize the fact by clearly indicating it on the protective lid 51 or the inner lid 49, the handle is held by the drainage flowing into the inspection port 2 or the inspection cylinder 48. Even when 22 is submerged and cannot be seen from above, the lid 20 can be removed relatively easily, which is very effective. The handle 22 may be provided so as to be arranged in the axial direction connecting the inflow port 4 and the first outflow port 5. In this case, the same function and effect can be obtained. However, when the handle 22 is provided on the lid 20, it is not always necessary to arrange the handle 22 in this manner.

  When the second outlet 8 is opened as described above, the drainage is stored in the storage tank 43 via the second outlet 8, the auxiliary outlet B connecting port 30, the third outlet 31, and the second outlet pipe 42. Will be discharged. In this case, since the second outlet 8 is provided downward at the bottom of the bottom 3, the waste water that has flowed into the main body 1 from the inlet 4 can be naturally dropped to the second outlet 8 side. . Thereby, the quantity of the waste_water | drain which flows out into the 1st outflow port 5 side, and the waste_water | drain which flows into the inspection port 2 is reduced significantly. As a result, it is possible to efficiently perform restoration work such as repair of an abnormal part on the first outflow pipe 41 side without stopping drainage from the facility or the like.

  In addition, after the series of restoration work is completed, the second outlet 8 is closed again with the lid 20. As a result, the drainage of the waste water from the second outlet 8 is prevented, while the wastewater that has flowed into the main body 1 from the inlet 4 flows out to the first outlet pipe 41 through the first outlet 5 as before. Will be.

  In the above embodiment, the third drain 31 of the auxiliary drain B and the first outlet 5 of the drain A are arranged at predetermined intervals in the vertical direction. . However, the present invention is by no means limited thereto, and for example, the central axes of the third outlet 31 and the first outlet 5 may be configured to intersect at right angles in plan view. FIG. 7 shows a drainage facility E using the drainage basin C. The second outflow pipe 42 connected to the third outlet 31 is a straight pipe 44, an elbow 45, and a straight pipe 46, as in the above embodiment. It is made up of. Thus, the auxiliary drainage basin B may be provided in the drainage basin A so that the third outlet 31 faces a desired direction in consideration of the piping space and the like.

  Further, depending on the positional relationship between the storage tank 43 and the drainage basin C, the drainage basin C can be incorporated into the storage tank 43 as shown in FIG. In this case, the inflow pipe 40 and a part of the first outflow pipe 41 are also accommodated in the storage tank 43, but the waste water is directly discharged to the storage tank 43 through the third outlet 31. Therefore, the 2nd outflow pipe 42 like the said embodiment becomes unnecessary, and simplification of a piping structure can be achieved.

Second Embodiment
In the first embodiment, the lid 20 is detachably attached to the second outlet 8 of the bottom 3, but the present invention is not limited to this. For example, FIG. You may comprise as shown in FIG.

  That is, the lid body 20 is provided on the bottom 3 of the main body 1 so as to be rotatable so that the second outlet 8 can be opened and closed. More specifically, the lid body 21 is formed in a front isosceles triangle shape, and a substantially arm-shaped handle 22 is pin-coupled to the upper end portion thereof so as to be rotatable. Further, an end portion of the lid main body 21 located on the first outlet 5 side is rotatably provided on the bottom portion 3 by a hinge 25. Further, as shown in FIG. 10B, when the lid body 20 is rotated to open the second outflow port 8, the lid body 20 is arranged at a position in front of the first outflow port 5. It is configured as follows. In addition, the structure of each other part is the same as that of the said 1st Embodiment, These are attached | subjected and demonstrated with the same code | symbol.

  For example, when an abnormality such as clogging of the drainage pipe such as the first outflow pipe 41 occurs and the overflow hole 6 alone cannot cope with this, the lid body 21 is rotated by the handle 22 via the hinge 25. Then, while the second outlet 8 is opened, the lid 20 is arranged at a position in front of the first outlet 5. As a result, the outflow of the waste water to the first outlet 5 side is restricted, so that much waste water that has flowed into the main body 1 from the second outlet 8 to the second outlet pipe 42 through the auxiliary drainage B. And can be drained. As a result, it is possible to efficiently perform restoration work such as repair of an abnormal part occurring on the first outflow pipe 41 side.

  In addition, when the lid 20 is rotated so as to open the second outlet 8, the first outlet 5 may be closed by the lid 20. According to this, all the waste water that has flowed into the main body 1 will flow out from the second outlet 8 to the second outlet pipe 42 via the auxiliary drainage B. As a result, it is possible to perform a series of recovery operations such as repair of an abnormal part more efficiently.

  Further, when the lid 20 is rotatably provided on the bottom portion 3, the lid 20 is not necessarily in front of the first outlet 5 when the lid 20 is rotated as in the second embodiment. There is no need to be arranged in a position.

<Third Embodiment>
In addition, when there is no space for installing the storage tank 43 as in the above embodiment in the site X, for example, as shown in FIGS. 11 and 12, the bypass pipe 60 is used instead of the storage tank 43 and the straight pipe 34. It is also possible to use and configure. If comprised in this way, compared with the case where the storage tank 43 is provided like the said embodiment, there exists an advantage that a construction period can be shortened and construction cost can be reduced.

  The bypass pipe 60 is connected to the elbow 61 connected to the third outlet 31 of the auxiliary drainage basin B, the straight pipe 62 connected to the elbow 61, and the straight pipe 62 via the elbow 63. The bypass pipe 64 includes an elbow 65 connected to the bypass pipe 64 and a straight pipe 66 connected to the elbow 65. The straight pipe 66 is connected to a public trough 67 embedded in a public road. The public outlet 67 is also connected to the first outflow pipe 41 and the drain main pipe 68. The structure of each other part is the same as that of the said 1st Embodiment, These are attached | subjected and demonstrated with the same code | symbol.

  In the present embodiment, when the above-described abnormality occurs in the drainage pipe line such as the first outflow pipe 41 and the overflow hole 6 alone cannot cope with this, the lid body 20 as in the first embodiment. Is removed from the second outlet 8. In this case, the wastewater flows into the bypass pipe 60 via the second outlet 8 and the auxiliary drainage basin B, and flows out to the drainage main pipe 68 via the public trough 67. Accordingly, as in the above embodiments, the amount of drainage flowing out from the first outlet 5 to the first outlet pipe 41 and the amount of drainage flowing out to the inspection port 2 can be reduced. Recovery work such as repairs can be performed efficiently.

  The bypass pipe line 60 can be arranged substantially parallel to the lower position of the first outflow pipe 41, and is particularly effective when the installation space in the width direction is limited.

  Furthermore, the piping member which comprises the bypass pipe line 60 is not limited to the said embodiment, For example, it can change arbitrarily according to installation space etc., for example.

<Other embodiments>
In addition, the inlet 4 and the first outlet 5 of the bottom 3 do not necessarily have to be provided in a straight line as in the above-described embodiments. For example, as shown in FIG. May be provided. Furthermore, a plurality of inflow ports 4 can be provided on the bottom 3 as shown in FIG. However, in any of these cases, it is preferable that the lid 20 is configured in such a shape that the drainage smoothly flows to the first outlet 5.

  In each of the embodiments described above, the overflow hole 6 is provided on the slope 9 of the bottom 3, but the position where the overflow hole 6 is provided is not limited to this. For example, you may provide in the side surface etc. of the flow path (invert) provided in the bottom part 3. FIG. In short, the overflow hole 6 may be provided in the bottom portion 3 so as to be positioned above the central axis of the first outlet 5. Moreover, the specific shape and size of the overflow hole 6 are not questioned.

  Moreover, the 2nd outflow port 8 and the cover body 20 which obstruct | occludes this should just be provided as needed, and may be abbreviate | omitted if there is no necessity in particular.

  In addition, the configuration of each part of the drains A and C, the arrangement of the first outlet 5 at the bottom 3 and the like can be arbitrarily changed within the intended scope of the present invention.

  As described above, the present invention is useful for drainage.

The drainage trough which concerns on one Embodiment of this invention is shown, (a) is a top view, (b) is front sectional drawing, (c) is side sectional drawing. The cover which concerns on one Embodiment of this invention is shown, (a) is a top view, (b) is a front view, (c) is a side view. The drainage trough which concerns on other embodiment of this invention is shown, (a) is front sectional drawing, (b) is a side view. It is a top view which shows the use condition of the drainage basin which concerns on one Embodiment of this invention. It is the same front view. It is a top view of the drainage basin which shows the state which removed the cover body. It is a top view which shows another use condition. It is sectional drawing which shows another use condition. It is a top view which shows the drainage basin concerning 2nd Embodiment of this invention. (A) And (b) is sectional drawing of a drainage basin. It is a top view which shows the use condition of the drainage basin which concerns on 3rd Embodiment. It is the same front view. Another embodiment of drainage is shown, (a) and (b) are plan views.

Explanation of symbols

2 Inspection Port 3 Bottom 4 Inlet 5 First Outlet 6 Overflow Hole 7 Discharge Tube 8 Second Outlet 9 Slope 20 Lid 21 Lid Body 22 Handle 40 Inlet Pipe 41 First Outlet B B Auxiliary drainage

Claims (8)

An inspection port provided at the top;
An inflow port to which an inflow pipe is connected to allow the drainage to flow in; a first outlet to which the first outflow pipe is connected to allow the drainage to flow out; A bottom having a hole;
A discharge tube provided at the lower part to discharge the drainage discharged to the overflow hole to the outside,
The drainage is characterized in that the overflow hole is provided at a position above the central axis of the first outlet.   The drainage according to claim 1, wherein a slope that slopes downward toward the inner side is formed at the top of the bottom, and the overflow hole is provided in the slope.   The drainage according to claim 1 or 2, wherein a second outflow port is formed at a lower portion of the bottom portion so as to communicate with a discharge cylinder, and a lid is detachably provided at the second outflow port.   The drainage according to claim 3, wherein the lid comprises a lid body having a substantially C-shaped or U-shaped cross section that forms a flow path connecting from the inlet to the first outlet.   The inflow port and the first outflow port are arranged to face each other, the lid body has a handle, and the handle is in an axial direction connecting the inflow port and the first outflow port or in a direction perpendicular thereto. The drainage according to claim 3 or 4 arranged.   The drainage according to any one of claims 3 to 5, wherein a lid is pivotally provided at the bottom so that the second outlet can be opened and closed.   When the lid is rotated to open the second outlet, the lid is disposed in front of the first outlet and restricts the drainage of drainage from the first outlet; or Drainage according to claim 6, wherein the drainage is configured to close the first outlet. 8. The auxiliary drainage drain according to claim 1, further comprising a third drainage outlet having a connection port connected to the discharge cylinder and a drainage port that flows out from the connection port. The drainage.

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