JP2019094614A - Catch basin - Google Patents

Abstract

To arrange a seal member between a basin body and a switching member suitably.SOLUTION: A catch basin 10 comprises: a basin body 11 having a body side bottom wall 16 and a body side-side wall 17 that rises from the body side bottom wall 16 and that has an inflow port 30, an outflow port 31 and a second outflow port 32 formed; a switching member 12 having a switching side bottom wall 46 and a switching side-side wall 47 that rises from the switching side bottom wall 46 and that has a first communication port 61 and a second communication port 62 formed; a closing member 13 arranged between the basin body 11 and the switching member 12; and a seal member 80 arranged between the basin body 11 and the closing member 13. In a state in which the switching member 12 and the closing member 13 are arranged inside the basing body 11, the inner peripheral surface of the body side-side wall 17 and the outside surface of the closing member 13, or the outer peripheral surface of the switching side-side wall 47 and the inside surface of the closing member 13 are inclined to the center side of the body side bottom wall 16 as going toward the body side bottom wall 16.SELECTED DRAWING: Figure 2

Description

  The present invention relates to drainage.

  For example, Patent Document 1 discloses a drainage that can switch the drainage flow path. The drainage disclosed in Patent Document 1 is disposed in a bottomed cylindrical grate body having an inlet, a first outlet, and a second outlet formed on the side, and is disposed in the gage body relative to the body And a switching member capable of switching the flow path of the drainage by rotating. The switching member is provided with a communication passage for connecting the inlet and the first outlet or the inlet and the second outlet. The switching member is inserted into the main body and is rotated relative to the main body to connect the inlet and the first outlet through the communication passage, and the inlet and the second flow through the communication passage. It is possible to change the position to connect with the exit.

Unexamined-Japanese-Patent No. 04-47041

  By the way, in the drainage disclosed in Patent Document 1, in order to make drainage more difficult to flow from between the main body and the switching member, it is conceivable to provide, for example, a rubber sealing member on the outer peripheral surface of the switching member. . However, in the above drainage, when the switching member is inserted into the main body, the switching member is inserted in a state where the outer peripheral surface of the switching member is in contact with the inner peripheral surface of the main body. Therefore, when the seal member is provided on the outer peripheral surface of the switching member, the seal member may be peeled off from the switching member by rubbing the seal member with the inner peripheral surface of the main body when inserting the switching member into the main body. was there. As a result, there is a possibility that the sealing member can not be disposed at an appropriate position with respect to the inner peripheral surface of the main body.

  The present invention has been made in view of such a point, and the object thereof is that in a drainage bowl having a main body and a switching member, it is possible to properly arrange a sealing member between the main body and the switching member. To provide good drainage.

  The drainage bowl according to the present invention comprises a main body, a switching member, a closing member and a sealing member. The main body has a main body bottom wall, an inlet through which the drainage flows, a first outlet through which the drainage flows out, and a second outlet through which the drainage flows out, and rises from the edge of the body bottom wall And a main body side wall. The switching member is formed with a switching bottom wall disposed above the bottom wall of the main body on the main body, and a first communication port and a second communication port, and the switching member rises from the edge of the switching bottom wall And side walls. The closing member is disposed between the main body and the switching member to close one of the first outlet and the second outlet. The sealing member is disposed between the main body and the closing member and surrounds one of the first outlet and the second outlet closed by the closing member. The switching member has a first switching position in which the first communication port and the inflow port communicate with each other, and the second communication port and the first outflow port communicate with each other, the first communication port, and the first communication port A position change is possible between a second switching position in communication with the second outlet and in communication with the second communication port and the inlet. When the switching member and the closing member are disposed in the main body, the inner peripheral surface of the side wall on the main body side, the surface on the main body side of the closing member, or the outer peripheral surface of the switching side wall The surface on the switching member side of the closing member is inclined toward the center of the bottom wall on the main body side toward the bottom wall on the main body side.

  According to the above drainage, the sealing member is not provided on the switching member, and is a separate member from the switching member. Therefore, for example, the switching member can be inserted into the main body while being slid relative to the main body while the sealing member and the closing member are disposed in the main body. Then, when the switching member is inserted into the main body, the sealing member is in close contact with the side wall of the main body by pressing the closing member against the side wall of the main body, and the position of the sealing member relative to the side wall of the main body is fixed. Ru. Thus, since the seal member and the closure member do not slide relative to the main body, the seal member does not rub against the side wall on the main body side. Therefore, it is possible to suppress the seal member from being raised in the main body.

  For example, when the switching member is disposed at the first switching position, the switching side bottom wall of the switching member is provided with the closing member and the sealing member disposed between the switching member and the second outlet of the main body. The switching member is moved so as to approach the bottom wall on the main body side. At this time, as the switching side bottom wall approaches the main body side bottom wall, the distance between the switching side wall of the switching member and the second outlet gradually becomes smaller, and the switching side sidewall via the sealing member and the closing member The degree of close contact between the and the main body side wall gradually increases. When the switching member is disposed at the first switching position, the seal member and the closing member are sandwiched between the switching side wall and the main body side wall. Therefore, the seal member can be properly disposed between the main body and the switching member without the seal member being rubbed by the side wall on the main body side.

  For example, when arranging the switching member in the second switching position, the switching member is inserted into the main body with the closing member and the sealing member arranged between the switching member and the first outlet of the main body. . At this time, the distance between the switching side wall and the first outlet gradually decreases, and the degree of close contact between the switching side wall and the main body side wall gradually increases through the seal member and the closing member. When the switching member is disposed at the second switching position, the seal member and the closing member are sandwiched between the switching side wall and the main body side wall. Therefore, even when the switching member is disposed at the second switching position, the sealing member can be appropriately disposed between the main body and the switching member without the sealing member being rubbed by the side wall of the main body.

  According to a preferred aspect of the present invention, the body-side sidewall is formed with an inflow wall in which the inflow port is formed, a first outflow wall in which the first outflow port is formed, and the second outflow port. And a second outflow wall. On the switching side wall, the closing member is slidably provided on the first communication wall in which the first communication port is formed, the second communication wall in which the second communication port is formed, and the main body side. And a closed wall.

  According to the above aspect, since the closing member is provided slidably on the closing wall of the switching side wall, while the closing member is disposed in the main body, the switching member is slid relative to the main body. Also, the switching member can be inserted into the main body while sliding the switching member relative to the closing member. Therefore, since the horizontal position of the closing member with respect to the switching member is fixed, the positioning of the closing member with respect to the switching member can be easily performed.

  According to another preferred aspect of the present invention, the inner surfaces of the inflow wall, the first outflow wall, and the second outflow wall on the side of the bottom wall on the main body side are flat surfaces. The outer surfaces of the first communication wall, the second communication wall, and the closed wall opposite to the switching bottom wall are flat surfaces. In plan view, the shape of the inner peripheral surface of the side wall on the main body side and the shape of the outer peripheral surface of the side wall on the switching side are polygonal shapes.

  According to the above aspect, when the switching member is inserted into the main body, the first communication wall, the second communication wall and the closing wall of the switching member are the ones of the inflow wall, the first outflow wall and the second outflow wall of the main body. Since it moves along any of them, it is easy to insert the switching member into the main body. In the above embodiment, when the shape of the inner peripheral surface of the side wall on the main body side and the shape of the outer peripheral surface of the side wall on the switching side are polygonal in plan view, when the switching member is disposed in the main body Thus, the switching member can be made difficult to rotate. Therefore, it is easy to align the switching member with the main body.

  According to another preferred aspect of the present invention, the inner surface on the switching side bottom wall side of the closing wall is recessed toward the opposite side to the switching side bottom wall toward the center of the closing wall in plan view Curved.

  According to the above aspect, the drainage flows between the first communication port and the second communication port in the switching member. For example, when drainage flows from the first communication port toward the second communication port in the switching member, the drainage may collide with the inner surface of the closing wall. In the above aspect, the inner surface of the closed wall is curved so as to be recessed on the opposite side to the switching bottom wall toward the center of the closed wall in plan view; It is easy to lead to the communication port.

  According to another preferred aspect of the present invention, a plurality of vertically extending projections are formed on the surface of the closing member on the closing wall side.

  According to the above aspect, the closing wall of the switching member is in contact with the projection formed on the closing member. Therefore, a space provided between the plurality of protrusions is formed between the closing wall and the closing member. Thus, the closing member slides more easily relative to the closing wall than when the closing wall is in full contact with the closing member.

  According to the present invention, it is possible to provide a drainage bowl having a main body and a switching member, in which the sealing member can be properly disposed between the main body and the switching member.

It is a perspective view of drainage which concerns on embodiment. It is a top view of drainage. FIG. 3 is a cross-sectional view of the drainage chute in the II-II cross section of FIG. FIG. 3 is a cross-sectional view of the drainage basin in the III-III cross section of FIG. 2, in which the switching member and the closing member are omitted. It is a perspective view of a switching member and a closing member. It is a top view of a switching member and a closing member. It is a top view of drainage tub, and is a figure showing the state where a change member is arranged at the 2nd change position. It is a figure which shows a closing member when it sees from the main body side. It is a figure which shows a closing member when it sees from the switching member side. It is sectional drawing of the switching member in the XX cross section of FIG. 6, and a closing member. It is explanatory drawing which shows the state which inserts a switching member in the main body. It is explanatory drawing which shows the state which inserts a switching member in the main body. It is explanatory drawing which shows the state which inserts a switching member in the main body. It is a top view of the switching member which concerns on other embodiment, a closing member, and a communication member. It is the figure which looked at the communication member which concerns on other embodiment from the main body side. It is the figure which looked at the communication member concerning other embodiments from the switching member side.

  Hereinafter, the drainage according to the embodiment of the present invention will be described with reference to the drawings. However, the embodiments described below are only embodiments of the present invention, and of course, are not intended to limit the present invention.

  FIG. 1 is a perspective view of the drainage bowl 10 according to the present embodiment. The symbol U in the drawings indicates the top, and the symbol D indicates the bottom. Further, a symbol X indicates a horizontal direction, and a symbol Y indicates a vertical direction. However, these directions are only directions defined for the convenience of description, and do not limit the installation mode of drainage 10 at all.

  As shown in Figure 1, draining water 10 is capable of switching the drainage flow path. Although not shown, drainage 10 is buried in the ground. Drainage pipe 10 is a pipeline through which drainage flows, and is connected to an intermediate part of the pipeline buried in the ground. Here, "drainage" includes sewage and rainwater. "Sewage water" is water discharged from toilets, baths, kitchen sinks, etc., and can not be released to the river as it is. "Rainwater" is water caused by natural phenomena such as rainfall, and can be discharged to rivers as it is.

  The drainage bowl 10 is provided with a main body 11, a switching member 12 and a closing member 13. FIG. 2 is a plan view of the drainage basin 10. FIG. 3 is a cross-sectional view of the drainage tank 10 in the II-II cross section of FIG. FIG. 4 is a cross-sectional view of the drainage tank 10 in the III-III cross section of FIG. In FIG. 4, the switching member 12 and the closing member 13 are omitted. The main body 11 is a bottomed body having a space inside. The upper part of the main body 11 is open. In the present embodiment, the crucible body 11 has a body-side bottom wall 16 and a body-side side wall 17. Although illustration is abbreviate | omitted, the shape of the main body side bottom wall 16 is a substantially equilateral triangle shape. However, the shape of the bottom wall 16 is not particularly limited.

  As shown in FIG. 3, the main body side wall 17 rises from the edge of the main body bottom wall 16. A space 23 is formed by the body-side bottom wall 16 and the body-side side wall 17. As shown in FIG. 2, the main body side wall 17 is formed with an inlet 30 through which the drainage flows, a first outlet 31 through which the drainage flows out, and a second outlet 32 through which the drainage flows out. As shown in FIG. 3, the inner circumferential surface of the main body side wall 17 is inclined toward the center of the main body bottom wall 16 as it goes to the main body bottom wall 16. That is, the inner peripheral surface of the main body side wall 17 is formed in a tapered shape. In other words, the area of the region surrounded by the inner peripheral surface of the main body side wall 17 is relatively smaller as it goes to the main body bottom wall 16. An angle R21 (see FIG. 3) formed by the inner circumferential surface of the main body side wall 17 and the upper surface of the main body bottom wall 16 is larger than 90 degrees. The shape of the inner peripheral surface of the main body side wall 17 is a substantially regular polygonal shape in plan view. Here, the shape of the inner peripheral surface of the main body side wall 17 is a substantially equilateral triangle in plan view. Therefore, in the present embodiment, “the center of the main body side bottom wall 16” is, for example, the center of gravity of the main body side wall 16 and connects three middle lines (each vertex and the middle point of the opposite side to the vertex) Point of intersection). The shape of the inner peripheral surface of the main body side wall 17 is not particularly limited.

  In the present embodiment, the opening area of the inlet 30, the opening area of the first outlet 31, and the opening area of the second outlet 32 are the same. The diameter of the inlet 30, the diameter of the first outlet 31, and the diameter of the second outlet 32 are the same. Also, as shown in FIGS. 3 and 4, the height of the center of the inlet 30 is the same as the height of the center of the first outlet 31 and the same as the height of the center of the second outlet 32. As shown in FIG. 2, in plan view, an angle R1 formed by the central axis C1 of the inlet 30 and the central axis C2 of the first outlet 31, and the central axis C2 of the first outlet 31 and the second outlet 32. The angle R2 formed by the central axis C3 of the second embodiment and the angle R3 formed by the central axis C3 of the second outlet 32 and the central axis C1 of the inlet 30 are the same. In the present specification, “same” includes some errors other than completely the same.

  In the present embodiment, the main body side wall 17 has an inflow wall 20, a first outflow wall 21, and a second outflow wall 22. In the following description, the inner surface of each of the inflow wall 20, the first outflow wall 21 and the second outflow wall 22 refers to the surface on the side of the body bottom wall 16, and the outer surface is the body bottom wall 16 and Refers to the opposite side. As shown in FIG. 4, an inlet 30 is formed in the inlet wall 20. The inner surface of the inflow wall 20 is inclined toward the center of the body-side bottom wall 16 as it goes to the body-side bottom wall 16. Here, a cylindrical inflow cylindrical portion 40 is provided on the outer surface of the inflow wall 20. The inflow tubular portion 40 communicates with the inflow port 30. As shown in FIG. 2, the inflow tubular portion 40 is connected to an inflow conduit 5 connected to a toilet, a bath, a kitchen sink, and drainage equipment (not shown) such as side grooves.

  As shown in FIG. 3, the first outlet 31 is formed in the first outlet wall 21, and the inner surface of the first outlet wall 21 is directed to the center of the bottom wall 16 toward the bottom wall 16. It is inclined to the side. Here, the cylindrical first outflow cylindrical portion 41 is provided on the outer surface of the first outflow wall 21. The first outflow cylindrical portion 41 communicates with the first outlet 31. As shown in FIG. 2, a first outflow pipeline 6 to which a sewage main pipe (not shown) is connected is connected to the first outflow cylindrical portion 41. As shown in FIG. 4, a second outlet 32 is formed in the second outflow wall 22, and the inner surface of the second outflow wall 22 is directed to the center of the bottom wall 16 toward the bottom wall 16. It is inclined to the side. Here, a cylindrical second outflow cylindrical portion 42 is provided on the outer surface of the second outflow wall 22. The second outflow cylindrical portion 42 communicates with the second outflow port 32. As shown in FIG. 2, a second outflow pipeline 7 to which a storage tank (not shown) is connected is connected to the second outflow cylindrical portion 42.

  The inner and outer surfaces of each of the inflow wall 20, the first outflow wall 21 and the second outflow wall 22 are flat surfaces. No protrusions and recesses are formed on the inner surfaces of the inflow wall 20, the first outflow wall 21 and the second outflow wall 22, respectively. In addition, at least one part of each inner surface and outer surface of the inflow wall 20, the 1st outflow wall 21, and the 2nd outflow wall 22 may be curved. In the present embodiment, a first connection wall 25 a is provided between the inflow wall 20 and the first outflow wall 21. A second connection wall 25 b is provided between the first outflow wall 21 and the second outflow wall 22. A third connection wall 25 c is connected between the second outflow wall 22 and the inflow wall 20. As shown in FIG. 1, the two side ends of the third connection wall 25c are inclined toward the center of the third connection wall 25c as it goes to the main body side bottom wall 16 (see FIG. 3). Although not shown, both side ends of the first and second connection walls 25a and 25b are inclined toward the center side of the first and second connection walls 25a and 25b as they are directed to the body-side bottom wall 16, respectively. There is.

  In the present embodiment, as shown in FIG. 2, inclined walls 27 are provided on the upper end of the inflow wall 20, the upper end of the first outflow wall 21, and the upper end of the second outflow wall 22. As shown in FIG. 3, the inclined wall 27 inclines downward as it goes to the main body side bottom wall 16 side. As shown in FIG. 1, the inclined wall 27 is curved to be recessed downward. By this, for example, when drainage drains on the upper surface of the inclined wall 27, the drained drainage can be flowed along the inclined wall 27 into the main body 11. Therefore, drainage can be prevented from accumulating on the inclined wall 27.

  In the present embodiment, an inspection cylinder 28 extending upward is provided above each of the three inclined walls 27. Although the shape of the inspection cylinder 28 is cylindrical, it is not particularly limited. An inspection port 38 is formed at the upper end of the inspection cylinder 28. Although not shown, a vertically extending upright pipe is connected to the inspection opening 38, and a lid is fitted to the upper end of the upright pipe.

  Next, the switching member 12 will be described. As shown in FIG. 3, the switching member 12 is detachably provided in the space 23 in the main body 11, and switches the flow path of drainage flowing in the main body 11. FIG. 5 is a perspective view of the switching member 12 and the closing member 13. FIG. 6 is a plan view of the switching member 12 and the closing member 13. As shown in FIG. 5, the switching member 12 is a bottomed member having a space inside. The upper portion of the switching member 12 is open. Here, the shape of the switching member 12 is a substantially regular triangular prism shape. However, the shape of the switching member 12 is not particularly limited. The switching member 12 is provided with a switching side bottom wall 46 and a switching side wall 47.

  As shown in FIG. 3, the switching bottom wall 46 is disposed above the bottom wall 16 of the main body 11. As shown in FIG. 6, the switching side bottom wall 46 has a substantially equilateral triangle shape. However, the shape of the switching side bottom wall 46 is not particularly limited. As shown in FIG. 5, the switching side wall 47 rises from the edge of the switching bottom wall 46. In the present embodiment, a space 48 is formed by the switching bottom wall 46 and the switching side wall 47. The outer peripheral surface of the switching side wall 47 is inclined toward the center of the switching bottom wall 46 as it goes to the switching bottom wall 46. That is, the outer peripheral surface of the switching side wall 47 is formed in a tapered shape. An angle R22 (see FIG. 3) formed by the outer peripheral surface of the switching side wall 47 of the switching member 12 and the lower surface of the switching bottom wall 46 is larger than 90 degrees. In the present embodiment, the inner circumferential surface of the switching side wall 47 is inclined toward the center of the switching bottom wall 46 as it goes to the switching bottom wall 46, as with the outer circumferential surface. However, the inner peripheral surface of the switching side wall 47 may not be inclined, and may be, for example, a surface extending in the vertical direction Y. As shown in FIG. 2, the shape of the outer peripheral surface of the switching side wall 47 is a substantially regular polygonal shape in a plan view. In the present embodiment, the outer peripheral surface of the switching side wall 47 has a shape along the inner peripheral surface of the main body side wall 17 of the main body 11, and is substantially in the shape of an equilateral triangle in plan view.

  As shown in FIG. 5, a first communication port 61 and a second communication port 62 are formed in the switching side wall 47. As shown in FIG. 2, when the switching member 12 is disposed in the space 23 of the lamp body 11, the first communication port 61 and the second communication port 62 are the inlet 30, the first outlet 31 and the first port 31 of the lamp body 11. It communicates with any of the second outlet 32. Although illustration is omitted, in the present embodiment, the opening area of the first communication port 61 and the opening area of the second communication port 62 are the same. The opening areas of the first and second communication ports 61 and 62 are the same as the opening areas of the inlet 30, the first outlet 31 and the second outlet 32. The diameter of the first communication port 61 and the diameter of the second communication port 62 are the same, and the diameters of the first and second communication ports 61 and 62 are the inlet 30, the first outlet 31, and the second outlet. It is the same as each diameter of 32. Further, the height of the center of the first communication port 61 and the height of the center of the second communication port 62 are the same. When the switching member 12 is disposed in the space 23 of the main body 11, the heights of the centers of the first and second communication ports 61 and 62 are set at the inlet 30, the first outlet 31 and the second outlet 32. It is the same as the height of each center. As shown in FIG. 2, an angle R4 between the central axis C4 of the first communication port 61 and the central axis C5 of the second communication port 62 is the central axis C1 of the inlet 30 and the central axis C2 of the first outlet 31. And the same angle R2 between the central axis C2 of the first outlet 31 and the central axis C3 of the second outlet 32, and the flow with the central axis C3 of the second outlet 32 It is the same as an angle R3 formed by the central axis C1 of the inlet 30.

  In the present embodiment, as shown in FIG. 5, the switching side wall 47 has a first communication wall 51, a second communication wall 52, and a closing wall 53. In the following description, the inner surfaces of the first communication wall 51, the second communication wall 52 and the closing wall 53 refer to the surface on the switching side bottom wall 46 side, and the outer surface is opposite to the switching side bottom wall 46 It means the side of the side. A first communication port 61 is formed in the first communication wall 51. The inner and outer surfaces of the first communication wall 51 are inclined toward the center of the switching bottom wall 46 as it goes to the switching bottom wall 46. A second communication port 62 is formed in the second communication wall 52. The inner and outer surfaces of the second communication wall 52 are inclined toward the center of the switching bottom wall 46 in the direction of the switching bottom wall 46. In the closing wall 53, no opening such as the first communication port 61 and the second communication port 62 is formed. The inner and outer surfaces of the closing wall 53 are inclined toward the center of the switching bottom wall 46 in the direction of the switching bottom wall 46.

  The inner surface and the outer surface of the first communication wall 51, the inner surface and the outer surface of the second communication wall 52, and the outer surface of the closing wall 53 are flat surfaces. No projections and recesses are formed on the inner and outer surfaces of the first communication wall 51, the inner and outer surfaces of the second communication wall 52, and the outer surface of the closing wall 53. The inner and outer surfaces of the first communication wall 51, the inner and outer surfaces of the second communication wall 52, and at least a portion of the outer surface of the closing wall 53 may be curved. As shown in FIG. 6, the inner surface of the closing wall 53 is curved in the opposite direction to the switching side bottom wall 46 as it goes to the center of the closing wall 53 in a plan view.

  In the present embodiment, as shown in FIG. 5, a first connection outer surface 55 a is formed between the outer surface of the first communication wall 51 and the outer surface of the second communication wall 52. A second connecting outer surface 55 b is formed between the outer surface of the second communication wall 52 and the outer surface of the closing wall 53. A third connecting outer surface 55 c is formed between the outer surface of the closing wall 53 and the outer surface of the first communication wall 51. The first to third connection outer surfaces 55a, 55b, 55c have shapes corresponding to the inner surfaces of the first to third connection walls 25a, 25b, 25c. Here, the inner surfaces of the first to third connection walls 25a, 25b, and 25c are curved surfaces that are curved so as to be convex on the side opposite to the center of the bottom wall 16 on a plan view. Therefore, the first to third connection outer surfaces 55a, 55b, 55c are curved surfaces that are curved to be convex on the opposite side to the center of the switching bottom wall 46 in a plan view. However, the inner surfaces of the first to third connection walls 25a, 25b, 25c and the first to third connection outer surfaces 55a, 55b, 55c may be flat surfaces. The two side ends of the first to third connection outer surfaces 55a, 55b, 55c are inclined toward the center of the first to third connection outer surfaces 55a, 55b, 55c, respectively, toward the switching bottom wall 46. In the present embodiment, as shown in FIG. 6, a connection inner surface 56 is formed between the inner surface of the first communication wall 51 and the inner surface of the second communication wall 52. The connection inner surface 56 is curved toward the switching bottom wall 46 as it goes to the center of the connection inner surface 56 in a plan view.

  In the present embodiment, an invert 57 is formed on the switching side bottom wall 46. The invert 57 connects the first communication port 61 and the second communication port 62. The invert 57 is in the form of a half tube, and is continuous with the first communication port 61 and the second communication port 62. In the invert 57, drainage from the first communication port 61 toward the second communication port 62 or drainage from the second communication port 62 toward the first communication port 61 flows.

  In this embodiment, as shown in FIG. 3, an angle R21 between the inner peripheral surface of the main body side wall 17 of the main body 11 and the upper surface of the main body bottom wall 16 is the outer peripheral surface of the switching side sidewall 47 of the switching member 12. And the lower surface of the switching side bottom wall 46 are the same as the angle R22. In other words, the angle R21 is an angle formed by the inner surface of the inflow wall 20 and the upper surface of the main body bottom wall 16, and is an angle formed by the inner surface of the first outflow wall 21 and the upper surface of the main body bottom wall 16. It is an angle which the inner surface of the 2nd outflow wall 22 and the upper surface of main part side bottom wall 16 make. In other words, the angle R22 is an angle formed by the outer surface of the first communication wall 51 and the lower surface of the switching bottom wall 46, and is an angle formed by the outer surface of the second communication wall 52 and the lower surface of the switching bottom wall 46. This is an angle formed by the outer surface of the closing wall 53 and the lower surface of the switching bottom wall 46.

  FIG. 7 is a plan view of the drainage tub 10, showing a state in which the switching member 12 is disposed at the second switching position P2. In the present embodiment, the switching member 12 can change its position between the first switching position P1 (see FIG. 2) and the second switching position P2 (see FIG. 7). Here, as shown in FIG. 2, the first switching position P1 is the position of the switching member 12 such that the drainage flows from the inflow port 30 to the first outflow port 31. When the switching member 12 is disposed at the first switching position P1, the inflow port 30 and the first outflow port 31 are connected through the space 48 (see FIG. 5) in the switching member 12. In the first switching position P1, for example, the first communication port 61 communicates with the inlet 30, the second communication port 62 communicates with the first outlet 31, and the closing wall 53 closes the second outlet 32. Such as the position of the switching member 12. The second switching position P2 is a position of the switching member 12 such that drainage flows from the inflow port 30 to the second outflow port 32, as shown in FIG. When the switching member 12 is disposed at the second switching position P2, the inflow port 30 and the second outflow port 32 are connected through the space 48 (see FIG. 5) in the switching member 12. Here, with the second switching position P2, for example, the first communication port 61 communicates with the second outlet 32, the second communication port 62 communicates with the inlet 30, and the closing wall 53 is the first outlet 31. Position of the switching member 12 to close the In the present embodiment, at the second switching position P2, the switching member 12 disposed at the first switching position P1 is rotated counterclockwise by angle R1 (or angle R2 or angle R3; see FIG. 2). is there.

  Next, the closing member 13 will be described. The closing member 13 is for closing the unopened port of the inlet 30, the first outlet 31 and the second outlet 32 of the main body 11. In other words, the closing member 13 closes the ports not in communication with the first communication port 61 and the second communication port 62 among the inflow port 30, the first outflow port 31 and the second outflow port 32. For example, as shown in FIG. 2, the closing member 13 closes the second outflow port 32 when the switching member 12 is disposed at the first switching position P1. As shown in FIG. 7, when the switching member 12 is disposed at the second switching position P2, the closing member 13 closes the first outlet 31. The closure member 13 is disposed between the cell body 11 and the closure wall 53 of the switching member 12. Specifically, as shown in FIG. 2, when the switching member 12 is disposed at the first switching position P1, the closing member 13 is disposed between the closing wall 53 and the second outlet 32. As shown in FIG. 7, when the switching member 12 is disposed at the second switching position P2, the closing member 13 is disposed between the closing wall 53 and the first outlet 31.

  FIG. 8 is a view showing the closing member 13 when viewed from the gauze body 11 side. FIG. 9 is a view showing the closing member 13 when viewed from the switching member 12 side. In the present embodiment, as shown in FIG. 8, the closing member 13 is a plate-like member, the upper portion is rectangular, and the lower portion is arc-shaped. However, the shape of the closing member 13 is not particularly limited. For example, the lower portion of the closure member 13 may be rectangular. Here, the maximum length L1 of the closing member 13 in the vertical direction Y is the maximum length in the vertical direction Y at the uppermost end of the first outlet 31 (or the second outlet 32) from the upper surface of the body-side bottom wall 16 Longer than (not shown).

  In the following description, when the closing member 13 is disposed between the main body 11 and the closing wall 53, the surface of the closing member 13 on the side of the main body 11 is called the outer surface, and the surface on the closing wall 53 side is the inner surface. It is said. As shown in FIG. 8, an annular groove 71 is formed on the outer surface of the closing member 13. An annular seal member 80 is fitted in the groove 71. Here, the sealing member 80 projects from the outer surface of the closing member 13. When the switching member 12 is disposed at the first switching position P1 (see FIG. 2), the seal member 80 contacts the portion of the second outflow wall 22 around the second outflow port 32. When the switching member 12 is disposed at the second switching position P2 (see FIG. 7), the seal member 80 contacts the portion of the first outflow wall 21 around the first outflow port 31. Although the material of the seal member 80 is not particularly limited, it is, for example, an elastic body. The elastic body is, for example, rubber.

  In the present embodiment, as shown in FIG. 9, the inner surface of the closing member 13 is provided with a plurality of projections 72. The protrusions 72 are rod-like protrusions extending in the vertical direction Y. The plurality of protrusions 72 are provided on the inner surface of the closing member 13 at predetermined intervals in the horizontal direction X. As shown in FIG. 6, the plurality of protrusions 72 can contact the outer surface of the closing wall 53 of the switching member 12. In the present embodiment, the number of the projections 72 is three, but is not particularly limited. The number of the protrusions 72 may be two, or four or more. In addition, some of the plurality of protrusions 72 may be arranged side by side in the vertical direction Y. Here, the plurality of projections 72 serve as ribs for enhancing the strength of the closing member 13.

  In the present embodiment, as shown in FIG. 5, the closing member 13 is slidably provided on the closing wall 53 of the switching member 12. In FIG. 5, the closing member 13 is shown sliding relative to the switching member 12. Here, the drainage bowl 10 has a slide mechanism 90 that slides the closure member 13 in the closure wall 53. The configuration of the slide mechanism 90 is not particularly limited. FIG. 10 is a cross-sectional view of the switching member 12 and the closing member 13 in the X-X cross section of FIG. Here, as shown in FIG. 6, the slide mechanism 90 has a pair of rails 91, a pair of engagement protrusions 92, and a pair of restriction protrusions 93 (see FIG. 10). The pair of rails 91 is provided on the outer surface of the closing wall 53. As shown in FIG. 5, the pair of rails 91 extend in the vertical direction Y. Here, as shown in FIG. 6, the rail 91 protrudes from the outer surface of the closing wall 53 and extends from the tip of the first rail 91 a toward the center of the closing wall 53 from the first rail 91 a extending in the vertical direction Y And an extended second rail 91b. That is, the rail 91 is formed in an L shape.

  As shown in FIG. 8, a pair of engagement protrusions 92 project from the top of the side ends of the both sides of the closing member 13. As shown in FIG. 10, the pair of engagement protrusions 92 engage with the pair of rails 91. In detail, the engagement protrusion 92 is slidably disposed in a space formed by the closing wall 53, the first rail 91a and the second rail 91b of the rails 91. The pair of restricting protrusions 93 is provided on the outer surface of the closing wall 53 and the lower portion of the pair of rails 91. The restricting protrusion 93 closes the space formed by the closing wall 53, the lower portion of the first rail 91a, and the lower portion of the second rail 91a. As a result, the engaging projection 92 comes into contact with the regulating projection 93 to restrict its downward movement. In addition, in FIG. 10, the state which the engagement protrusion 92 provided in the closing member 13 contacts the control protrusion 93 is shown.

  Heretofore, the configuration of the drainage 10 according to the present embodiment has been described. Next, a procedure for arranging the switching member 12 in the space 23 in the main body 11 will be described. 11A to 11C are explanatory views showing a state in which the switching member 12 is inserted into the main body 11. 11A to 11C, the bottom wall 16 on the main body side, the side wall 17 on the main body side, and the second outlet 32 of the main body 11 are shown, and the other parts constituting the main body 11 are not shown. ing. Here, the procedure for arranging the switching member 12 at the first switching position P1 will be described with reference to FIGS. 11A to 11C. First, the switching member 12 is inserted into the space 23 in the main body 11 from the inspection port 38 (see FIG. 3) of the main body 11. When the switching member 12 is inserted into the space 23, the closing member 13 provided slidably with respect to the closing wall 53 of the switching member 12 is caught in the restriction projection 93 (see FIG. 10) of the slide mechanism 90, A portion is disposed below the switching member 12 (see FIG. 11A). At this time, the lower end of the closing member 13 is in contact with the bottom wall 16 of the main body 11. In such a state, the switching member 12 is inserted into the space 23 in the main body 11.

  Then, as shown in FIG. 11B, the switching member 12 is further inserted into the space 23, and the switching bottom wall 46 of the switching member 12 is moved closer to the bottom wall 16 of the main body 11, Switching member 12 slides downward, in other words, the closing member 13 slides upward with respect to the switching member 12 and between the closing wall 53 of the switching member 12 and the second outflow wall 22 of the main body 11 The distance is shortened. As this distance becomes shorter, the closing member 13 is pressed against the second outflow wall 22 by the closing wall 53, whereby the degree of close contact between the closing member 13 and the second outflow wall 22 via the seal member 80 is increased. . And as shown to FIG. 11C, when the switching member 12 is arrange | positioned in 1st switching position P1, the closing member 13 and the sealing member 80 will be in the state pinched by the closing wall 53 and the 2nd outflow wall 22. . Therefore, in a state where the seal member 80 contacts the portion of the second outflow wall 22 around the second outflow port 32, the closing member 13 and the second outflow wall 22 are tightly adhered via the seal member 80. . At this time, as shown in FIG. 2, the outer surface of the first communication wall 51 of the switching member 12 contacts the inner surface of the inflow wall 20 of the main body 11, and the first communication port 61 and the inflow port 30 communicate with each other. . The outer surface of the second communication wall 52 of the switching member 12 contacts the inner surface of the first outflow wall 21 of the main body 11, and the second communication port 62 and the first outflow port 31 communicate with each other. Further, as shown in FIG. 11C, in a state where the switching member 12 and the closing member 13 are disposed in the main body 11, the inner surface and the outer surface of the closing member 13 move toward the main side bottom wall 16 It inclines to the center side of the wall 16. As described above, the switching member 12 can be disposed at the first switching position P1.

  Note that, as shown in FIG. 2, in the state where the switching member 12 is disposed at the first switching position P 1, the drainage that has flowed in from the inflow conduit 5 passes through the inflow cylindrical portion 40, the inflow port 30 and the first communication port 61. , Flows into the invert 57 of the switching member 12. The waste water flowing into the invert 57 is led to the second communication port 62 and is discharged to the first outflow pipeline 6 through the second communication port 62, the first outlet 31 and the first outflow cylindrical portion 41.

  When changing the position of the switching member 12 from the first switching position P1 to the second switching position P2, the switching member 12 may be pulled out of the main body 11 through the inspection port 38. When the switching member 12 is pulled out of the main body 11, as the switching member 12 moves upward, as shown in FIG. 11B, the distance between the closing wall 53 and the second outflow wall 22 gradually increases. As a result, the degree of close contact between the closing member 13 and the second outflow wall 22 gradually decreases. Then, when the switching member 12 is completely pulled out of the main body 11, as shown in FIG. 10, the closing member 13 is in a state of being hooked on the regulation projection 93 of the slide mechanism 90.

  Next, the switching member 12 is disposed at the second switching position P2 (see FIG. 7). At this time, first, the lower end of the closing member 13 is fixed to the bottom wall 16 of the main body 11 with the lower end of the closing member 13 in a state where a part thereof is disposed below the switching member 12. Make contact. In such a state, the outer surface of the first communication wall 51 of the switching member 12 is brought into contact with the inner surface of the second outflow wall 22 of the main body 11, and the outer surface of the second communication wall 52 of the switching member 12; The switching member 12 is inserted into the space 23 while being in contact with the inner surface of the inflow wall 20 of the main body 11.

  Then, as the switching side bottom wall 46 is brought closer to the main body side bottom wall 16, the closing member 13 slides upward with respect to the switching member 12, and the distance between the first outflow wall 21 and the closing wall 53 becomes short. . As this distance becomes shorter, the closing member 13 is pressed by the closing wall 53 against the first outflow wall 21 side. As a result, the degree of close contact between the closing member 13 and the first outflow wall 21 via the sealing member 80 is increased. Then, as shown in FIG. 7, when the switching member 12 is disposed at the second switching position P2, the closing member 13 and the sealing member 80 are sandwiched between the closing wall 53 and the first outflow wall 21. . Therefore, in a state where the seal member 80 is in contact with the portion of the first outflow wall 21 around the first outflow port 31, the closing member 13 and the first outflow wall 21 are firmly adhered via the seal member 80. . At this time, the outer surface of the first communication wall 51 contacts the inner surface of the second outflow wall 22, and the first communication port 61 and the second outflow port 32 communicate with each other. Further, the outer surface of the second communication wall 52 contacts the inner surface of the inflow wall 20, and the second communication port 62 and the inflow port 30 communicate with each other. As described above, the switching member 12 can be disposed at the second switching position P2.

  In the state where the switching member 12 is disposed at the second switching position P2, the waste water flowing in from the inflow conduit 5 flows into the invert 57 of the switching member 12 through the inflow cylindrical portion 40, the inflow port 30 and the second communication port 62. Do. The waste water flowing into the invert 57 is guided toward the first communication port 61 and is discharged to the second outflow pipeline 7 through the first communication port 61, the second outlet 32 and the second outflow cylindrical portion 42.

  As described above, in the present embodiment, the seal member 80 is not provided to the switching member 12 and is a separate member from the switching member 12. Therefore, for example, as shown in FIG. 11A, inserting the switching member 12 into the main body 11 while sliding the switching member 12 with respect to the main body 11, with the seal member 80 and the closing member 13 being disposed in the main body 11. Can. Then, as shown in FIG. 11B, when the switching member 12 is inserted into the main body 11, the sealing member 80 is pressed to the main body side wall 17 by pressing the closing member 13 against the main body side wall 17. Close contact is achieved, and the position of the seal member 80 with respect to the main body side wall 17 is fixed. As described above, since the sealing member 80 and the closing member 13 do not slide relative to the main body 11, the sealing member 80 does not rub against the main body side wall 17 of the main body 11. Therefore, it is possible to prevent the seal member 80 from being heated up in the main body 11. Therefore, even when the switching member 12 is disposed at the first switching position P1 (see FIG. 2) or at the second switching position P2 (see FIG. 7), the main body 11 and the switching member The seal member 80 can be properly disposed between the two.

  For example, when the sealing member is provided on the outer peripheral surface of the switching member as in the conventional case, when the operator inserts the switching member into the main body, the sealing member rubs against the main body, so the switching member and the main body The resistance between them increases, making it difficult to insert the switching member into the main body. However, in the present embodiment, when the switching member 12 is inserted into the main body 11, the seal member 80 is disposed in the main body 11. Therefore, when the switching member 12 is inserted into the main body 11, the resistance between the switching member 12 and the main body 11 becomes smaller compared to the conventional case. Therefore, the operator can easily insert the switching member 12 into the main body 11.

  In the present embodiment, as shown in FIG. 5, the closing wall 13 is provided with the closing member 13 in a slidable manner. As a result, as shown in FIGS. 11A to 11C, the switching member 12 is slid within the main body 11 while the closing member 13 is slid relative to the switching member 12 with the closing member 13 disposed in the main body 11. Can be inserted into Therefore, since the horizontal position of the closing member 13 with respect to the switching member 12 is fixed, the positioning of the closing member 13 with respect to the switching member 12 can be easily performed.

  In the present embodiment, the inner surface of each of the inflow wall 20, the first outflow wall 21 and the second outflow wall 22 is a flat surface. The respective outer surfaces of the first communication wall 51, the second communication wall 52 and the closing wall 53 are flat surfaces. When the switching member 12 is inserted into the main body 11, the first communication wall 51, the second communication wall 52 and the closing wall 53 of the switching member 12 are the inflow wall 20, the first outflow wall 21 and the second wall of the main body 11. It moves along any of the outflow walls 22. Therefore, it is easy to insert the switching member 12 into the main body 11. In the present embodiment, as shown in FIG. 2, the shape of the inner peripheral surface of the main body side wall 17 and the shape of the outer peripheral surface of the switching side wall 47 are substantially polygonal shapes in plan view. Therefore, when the switching member 12 is disposed in the main body 11, the switching member 12 can be made difficult to rotate with respect to the main body 11. Therefore, it is easy to align the switching member 12 with the main body 11.

  In the switching member 12, drainage flows between the first communication port 61 and the second communication port 62. For example, when drainage flows from the first communication port 61 toward the second communication port 62 in the switching member 12, drainage may collide with the inner surface of the closing wall 53. In the present embodiment, as shown in FIG. 6, the inner surface of the closing wall 53 is curved so as to be recessed toward the opposite side to the switching bottom wall 46 as it goes to the center of the closing wall 53 in plan view. Therefore, the drainage that has collided with the inner surface of the closing wall 53 can be easily led to the second communication port 62.

  In the present embodiment, as shown in FIG. 9, a plurality of protrusions 72 extending in the vertical direction are formed on the surface of the closing member 13 on the closing wall 53 side. By this, as shown in FIG. 6, the closing wall 53 of the switching member 12 contacts the projection 72 formed on the closing member 13. Therefore, a space provided between the plurality of protrusions 72 is formed between the closing wall 53 and the closing member 13. Therefore, the closing member 13 can easily slide relative to the closing wall 53 as compared with the case where the closing wall 53 is in full contact with the closing member 13.

  In the above, drainage 10 which concerns on this embodiment was demonstrated. In the above embodiment, as shown in FIG. 5, the closing member 13 is provided slidably with respect to the closing wall 53 of the switching member 12, but is not provided slidably with respect to the closing wall 53. It is also good. The switching member 12 and the closing member 13 may be independent members. In this case, the switching member 12 may be inserted into the main body 11 after the closing member 13 is disposed in the space 23 in the main body 11.

  A member such as a closing member 13 is provided between the inner peripheral surface of the main body side wall 17 of the main body 11 and the outer surfaces of the first communication wall 51 and the second communication wall 52 of the switching member 12. It is also good. FIG. 12 is a plan view of the switching member 12, the closing member 13 and the communication members 113a and 113b according to another embodiment. FIG. 13 is a view of the communication members 113a and 113b as seen from the side of the main body 11, and shows the outer surface of the communication members 113a and 113b. FIG. 14 is a view of the communication members 113a and 113b as viewed from the switching member 12 side, and shows the inner surface of the communication members 113a and 113b. For example, as shown in FIG. 12, between the inner peripheral surface of the main body side wall 17 (see FIG. 2) and the outer surface of the first communication wall 51, and the inner peripheral surface of the main body side wall 17 and the second communication wall 52. Communication members 113a and 113b may be provided with other communication ports 114 (see FIG. 13), respectively, between them and the outer surface of the connector.

  For example, the other communication port 114 of the communication member 113a communicates one of the inlet 30, the first outlet 31, and the second outlet 32 of the main body 11 with the first communication port 61 of the switching member 12. Let The other communication port 114 of the communication member 113 b brings the second communication port 62 into communication with any one of the inflow port 30, the first outflow port 31, and the second outflow port 32. For example, when the switching member 12 is disposed at the first switching position P1 (see FIG. 2), the communication member 113a is disposed between the inflow wall 20 and the first communication wall 51, and the communication member 113b is The first outflow wall 21 and the second communication wall 52 are disposed. When the switching member 12 is disposed at the second switching position P2 (see FIG. 7), the communicating member 113a is disposed between the second outflow wall 22 and the first communicating wall 51, and the communicating member 113b is inflowed. It is disposed between the wall 20 and the second communication wall 52.

  As shown in FIG. 13, the shape of the communication members 113 a and 113 b is a plate-like member like the closing member 13, and the upper portion is rectangular and the lower portion is arc-shaped, but is not particularly limited. An annular groove 171 similar to the groove 71 of the above embodiment is formed in the outer surface of the communication members 113 a and 113 b around the other communication port 114. An annular seal member 180 similar to the seal member 80 of the above embodiment is fitted in the groove 171. Further, as shown in FIG. 14, a plurality of projections 172 extending in the vertical direction Y may be provided on the inner surface of the communication members 113 a and 113 b as in the case of the projections 72 of the above embodiment.

  Here, the communication members 113a and 113b are provided slidably in the first communication wall 51 and the second communication wall 52, respectively. The configuration of the slide mechanism that slides the communication members 113a and 113b with respect to the first communication wall 51 and the second communication wall 52 is the same as the configuration of the slide mechanism 90 (see FIG. 5) of the above embodiment. I omit it.

  For example, when the switching member 12 is inserted into the main body 11, the distance between the main body side wall 17 and the switching side wall 47 is gradually shortened. Since the communication members 113a and 113b are pressed against the main body side wall 17 by the switching side wall 47, the degree of close contact between the communication members 113a and 113b and the main body side wall 17 via the seal member 180 is increased. When the switching member 12 is disposed in the main body 11, the communication members 113 a and 113 b are sandwiched between the main body side wall 17 and the switching side wall 47. Therefore, the seal member 180 provided on the communication members 113a and 113b is firmly in close contact with the main body side wall 17.

  The communication members 113 a and 113 b may not be provided slidably on the switching member 12. That is, the communication members 113a and 113b and the switching member 12 may be independent members. Either of the communication members 113a and 113b may be omitted.

  In the above embodiment, as shown in FIG. 11C, when the switching member 12 and the closing member 13 are disposed in the main body 11, the inner circumferential surface of the main body side wall 17, the outer circumferential surface of the switching side sidewall 47, closing The inner surface of the member 13 and the outer surface of the closing member 13 were inclined toward the center of the bottom wall 16 on the main body side.

  However, the inner circumferential surface of the main body side wall 17 may extend in the vertical direction Y, and the outer circumferential surface of the switching side sidewall 47 may be inclined toward the center side of the main body bottom wall 16. In this case, the outer surface of the closing member 13 may extend in the vertical direction Y, and the inner surface of the closing member 13 may be inclined toward the center of the bottom wall 16. That is, in this case, the thickness of the closing member 13 may be thinner toward the bottom. The inner peripheral surface of the main body side wall 17 may be inclined toward the center of the main body bottom wall 16, and the outer peripheral surface of the switching side wall 47 may extend in the vertical direction Y. In this case, the outer surface of the closing member 13 may be inclined toward the center of the bottom wall 16 and the inner surface of the closing member 13 may extend in the vertical direction Y. That is, in this case, the thickness of the closing member 13 may be thicker toward the lower side.

  In the above embodiment, the sealing member 80 is provided on the closing member 13. However, the seal member 80 may be provided on the main body side wall 17. The sealing member 80 may not be provided on the closing member 13 and the body side wall 17, and may be a member independent of the closing member 13 and the body side wall 17.

  An annular seal member may be provided on the outer surface of the first communication wall 51 of the switching member 12 and around the first communication port 61 so as to surround the first communication port 61. Similarly, an annular seal member may be provided on the outer surface of the second communication wall 52 of the switching member 12 and around the second communication port 62 so as to surround the second communication port 62.

  In the above embodiment, the inner circumferential surface of the main body side wall 17 of the main body 11 and the outer circumferential surface of the switching side sidewall 47 of the switching member 12 are substantially triangular prisms. However, the respective shapes of the inner peripheral surface of the body side wall 17 and the outer peripheral surface of the switching side wall 47 are not particularly limited, and may be, for example, a cylindrical shape, or a polygonal prism shape having four or more vertices. It may be

  In the above embodiment, the number of outlets formed in the main body 11 is two, the first outlet 31 and the second outlet 32. However, the number of outlets may be one or three or more. When the number of outlets is one, the number of inlets may be more than one. For example, in the above embodiment, the inlet 30 may be changed to an outlet, the first outlet 31 may be changed to a first inlet, and the second outlet 32 may be changed to a second inlet.

10 drain 11 main body 12 switching member 13 closing member 16 main body bottom wall 17 main body side wall 30 inlet 31 first outlet 32 second outlet 46 switching side bottom wall 47 switching side sidewall 61 first communication port 62 2 communication port 80 seal member

Claims (5)

A body-side bottom wall, an inlet through which drainage flows in, a first outlet through which drainage drains out, and a second outlet through which drainage drains is formed, and a body-side sidewall rising from an edge of the body-side bottom wall , With the body,
A switching side bottom wall disposed above the main body bottom wall of the main body, and a switching side wall having a first communication port and a second communication port and rising from an edge of the switching bottom wall; A switching member having
A closing member disposed between the main body and the switching member and closing any one of the first outlet and the second outlet;
The sealing member disposed between the main body and the closing member and surrounding one of the first outlet and the second outlet closed by the closing member;
Equipped with
The switching member has a first switching position in which the first communication port and the inflow port communicate with each other, and the second communication port and the first outflow port communicate with each other, the first communication port, and the first communication port (2) It is possible to change the position between a second switching position in communication with the second outlet and in communication with the second communication port and the inlet;
When the switching member and the closing member are disposed in the main body, the inner peripheral surface of the side wall on the main body side, the surface on the main body side of the closing member, or the outer peripheral surface of the switching side wall The surface on the switching member side of the closing member is inclined toward the center of the bottom wall on the main body side as it goes to the bottom wall on the main body side. The body side wall is
An inlet wall in which the inlet is formed;
A first outlet wall in which the first outlet is formed;
A second outlet wall in which the second outlet is formed;
Have
The switching side wall is
A first communication wall in which the first communication port is formed;
A second communication wall in which the second communication port is formed;
A closing wall in which the closing member is slidably provided on the surface of the body side;
The drainage according to claim 1, having. The respective inner surfaces on the main body bottom wall side of the inflow wall, the first outflow wall, and the second outflow wall are flat surfaces,
Each of the first communication wall, the second communication wall, and the outer surface of the closing wall opposite to the switching bottom wall is a flat surface,
The drainage according to claim 2, wherein the shape of the inner peripheral surface of the side wall on the main body side and the shape of the outer peripheral surface of the switching side wall in a plan view are polygonal.   The inner surface on the switching side bottom wall side in the closing wall is curved so as to be recessed toward the opposite side to the switching side bottom wall toward the center of the closing wall in plan view. Drainage listed.   The drainage according to any one of claims 2 to 4, wherein a plurality of vertically extending protrusions are formed on the surface on the closing wall side of the closing member.

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