JP2020090833A - Deodorization valve mechanism and lid including the same - Google Patents

Abstract

To provide a deodorization valve mechanism that allows easy placement of a deodorization valve in an existing standing pipe.SOLUTION: A deodorization valve mechanism 40 is fitted to a lid frame 3 provided at the upper end of a standing pipe 2, and is attached to a lid 20 comprising a parent lid body 31 having a fitting hole 33 which vertically penetrates, a parent lid 21 having a parent lid cylindrical portion 32 extending downward from the parent lid body 31, and a child lid 22 mating with the fitting hole 33. The deodorization valve mechanism 40 is provided with a connecting cylindrical portion 41 which can be fitted to the parent lid cylindrical portion 32, and a deodorization valve 42 provided in the connecting cylindrical portion 41 that can open and close an opening on the lower side of the connecting cylindrical portion 41.SELECTED DRAWING: Figure 2

Description

The present invention relates to a deodorant valve mechanism and a lid including the deodorant valve mechanism. More specifically, the present invention relates to a deodorant valve mechanism attached to a parent-child lid, and a lid including the deodorant valve mechanism, a parent lid, and a child lid.

For example, Patent Document 1 discloses a lid for an underground structure for installing a temporary toilet for connecting a standing pipe and a temporary toilet, which is an example of an outdoor manhole, when a disaster such as an earthquake occurs. There is. This underground structure lid includes a child lid and a parent lid having a fitting hole into which the child lid is fitted. The main lid is provided with a tubular portion extending downward from the edge of the fitting hole. A tubular adapter connected to the temporary toilet is fitted into the tubular portion so as to project upward from the tubular portion.

When installing the temporary toilet, the parent lid with the child lid removed is placed on the stand pipe, and the adapter is fitted into the tubular portion so that the adapter projects upward from the parent lid. Then connect the temporary toilet to the top of the adapter. As a result, the sewage discharged from the temporary toilet can be made to flow into the stand pipe via the adapter.

Japanese Patent No. 3285325

By the way, the deodorant valve is not provided in the vertical pipe disclosed in Patent Document 1, and the deodorant valve is built in the temporary toilet. Therefore, if the child lid is removed while the temporary toilet is not installed, there is a possibility that the odor in the standing pipe may leak to the outside. In order to prevent such an odor in the vertical pipe from leaking to the outside, it is conceivable to attach an odor prevention valve to the vertical pipe. When attaching the deodorant valve to the standpipe, it was necessary to work the standpipe in order to attach the deodorant valve. However, since the standing pipe is an existing standing pipe that is buried in the ground in advance, it is difficult to attach the deodorant valve.

The present invention has been made in view of the above point, and an object thereof is to provide an odor control valve mechanism capable of easily disposing an odor control valve in an existing standpipe and a lid including the odor control valve mechanism.

The present inventor studied to easily arrange the deodorant valve in the existing vertical pipe without processing the existing vertical pipe. As a result, the present inventor has focused on the lid that opens and closes the standing pipe. The lid can be easily removed from the stand tube. Therefore, the present inventor has found that the deodorizing valve can be arranged in the standing pipe by attaching the deodorizing valve to the lid and installing the lid having the deodorizing valve attached to the standing pipe.

The deodorant valve mechanism according to the present invention is fitted to a lid frame provided at an upper end of a stand pipe, and a main lid main body in which a fitting hole penetrating vertically is formed, and downward from the main lid main body. The deodorant valve mechanism is attached to a lid including a parent lid having an extended parent lid tubular portion and a child lid fitted into the fitting hole. The deodorant valve mechanism includes a connection tubular portion that can be fitted into the parent lid tubular portion, and an odor control valve that is provided in the connection tubular portion such that an opening below the connection tubular portion can be opened and closed. , Are provided.

In the deodorant valve mechanism, for example, the connection tubular portion provided with the deodorant valve is fitted to the parent lid tubular portion so that the connection tubular portion extends downward from the parent lid tubular portion. As a result, the deodorant valve is provided on the parent lid. Therefore, by fitting the master lid provided with the deodorizing valve to the lid frame, the deodorizing valve is arranged in the stand pipe. Therefore, even if the stand pipe is not provided with the deodorant valve, the deodorant valve can be easily arranged in the stand pipe without processing the stand pipe.

According to a preferred aspect of the present invention, the connection tubular portion is provided with a flange extending outward in the radial direction of the connection tubular portion.

According to the above aspect, for example, the lower end of the parent lid tubular portion contacts the flange. The position of the connecting tubular portion relative to the parent lid tubular portion when the lower end of the parent lid tubular portion contacts the flange of the connecting tubular portion is such that the connecting tubular portion fits securely into the parent lid tubular portion. It is the position. Therefore, when fitting the connection tubular portion to the parent lid tubular portion, by pushing the connection tubular portion into the parent lid tubular portion until the lower end of the parent lid tubular portion contacts the flange of the connection tubular portion. The connection tubular portion can be securely fitted to the parent lid tubular portion.

According to another preferred aspect of the present invention, the deodorizing valve includes a valve body that can be mounted on a lower end of the connecting tubular portion. The deodorant valve mechanism includes a seal member that is provided in the connection tubular portion and is in contact with the valve body, or is provided in the valve body and is in contact with the connection tubular portion.

According to the above aspect, it is possible to enhance the adhesion between the connecting tubular portion and the valve body. Therefore, it is possible to prevent the odor from leaking from the gap between the connecting tubular portion and the valve body.

According to another preferred aspect of the present invention, the deodorizing valve includes a valve body that can be mounted on a lower end of the connecting tubular portion. The valve body includes a closing plate portion that closes the connection tubular portion when attached to the lower end of the connection tubular portion, and the closing plate portion when attached to the lower end of the connection tubular portion. An enclosure extending at least upward from the edge of the.

According to the above aspect, water can be accumulated in the valve body when the valve body is attached to the connecting tubular portion. The water accumulated in the valve body, together with the closing plate portion of the valve body, separates the inside and the outside of the stand pipe, and plays a role of blocking the odor in the stand pipe from the outside. Therefore, it is possible to make it difficult for the odor in the standing pipe to leak to the outside.

According to another preferred aspect of the present invention, the deodorant valve includes an arm provided on an outer peripheral surface of the connection tubular portion, and a direction supported by the arm and orthogonal to an axial direction of the connection tubular portion. A support shaft extending to the lower end of the connecting tubular portion, and a valve body swingably supported by the arm via the support shaft, and the valve with respect to the axis of the support shaft. A weight arranged on the opposite side of the body and swingably supported by the arm via the support shaft. The connecting tubular portion is provided above the weight and is provided with an inclined surface that is inclined toward the inner side in the radial direction of the connecting tubular portion as it goes downward.

According to the above aspect, a space is secured below the inclined surface of the connecting tubular portion. Therefore, by disposing the weight in the space, it is possible to secure a space for disposing the weight.

A lid according to the present invention includes any one of the above deodorant valve mechanisms, a parent lid, and a child lid. The parent lid is fitted to a lid frame provided at the upper end of the stand tube, and a parent lid main body having a fitting hole penetrating vertically is formed, and a parent lid cylinder extending downward from the parent lid main body. And a shaped portion. The child cover fits in the fitting hole.

For example, the lid fitted to the lid frame provided on the upper end of the existing stand tube is a lid composed of one member having no parent lid and child lid, and does not have a parent lid cylindrical portion. It can be a lid with a parent lid. In these cases, by changing the lid itself to the lid of the present invention, the deodorant valve can be easily arranged in the standing pipe without processing the existing standing pipe.

According to the present invention, it is possible to provide an odor control valve mechanism capable of easily disposing an odor control valve in an existing vertical pipe, and a lid including the same.

It is a top view of the lid concerning one embodiment of the present invention. FIG. 2 is a front sectional view of a lid and a pipe joint taken along the line II-II of FIG. 1. It is a top view of a connection cylindrical part. It is a front view of a connection cylindrical part. It is a right view of a connection cylindrical part. It is a bottom view of a connection cylindrical part. It is a top view of a valve body. It is a figure corresponding to FIG. 2, and is a figure which shows the state which the pipe line and the connection pipe were connected by the pipe joint. It is a front view of a pipe joint. It is a top view of a pipe joint. It is the figure which expanded the part A of FIG. It is a figure which shows an example of a temporary toilet.

Hereinafter, an embodiment of a lid including an odor control valve mechanism according to the present invention will be described with reference to the drawings. FIG. 1 is a plan view of a lid 20 according to this embodiment. FIG. 2 is a front cross-sectional view of the lid 20 and the pipe joint 70 in the II-II cross section of FIG. 1.

As shown in FIG. 2, the lid 20 is provided on the conduit 1 buried in the ground. The pipe line 1 has, for example, a standing pipe 2 and a lid frame 3. The standing pipe 2 is buried in the ground and extends vertically. The standing pipe 2 is, for example, a manhole or a stand of a masu. Although not shown, another pipe line connecting the standing pipe 2 and the main sewer is connected to the lower end of the standing pipe 2. The other conduit may be composed of a plurality of pipes, masts, joints, or the like, or may be composed of one pipe.

The lid frame 3 is provided at the upper end of the standing pipe 2 and fits into the standing pipe 2. The lid frame 3 has a frame tubular portion 3a fitted into the stand tube 2 and a lid fitting portion 3b extending upward from the frame tubular portion 3a and into which the lid 20 is detachably fitted.

The lid 20 is detachably fitted to the lid frame 3. The lid 20 includes a parent lid 21, a child lid 22, a deodorant valve mechanism 40, and a pipe joint 70.

The parent lid 21 has a parent lid main body 31 and a parent lid tubular portion 32. The main lid body 31 is a portion that fits into the lid frame 3 (specifically, the lid fitting portion 3b of the lid frame 3). A fitting hole 33 that penetrates vertically is formed in the main lid body 31. The shape of the fitting hole 33 is not particularly limited, but is, for example, circular as shown in FIG. In the present embodiment, the fitting hole 33 is formed in the central portion of the main lid main body 31 in plan view, but the formation position of the fitting hole 33 is not particularly limited. As shown in FIG. 2, an annular seal member 34 that is in contact with the lid frame 3 when the parent lid 21 is fitted into the lid frame 3 is attached to the parent lid body 31. The type of the seal member 34 is not particularly limited, but is rubber, for example. The sealing member 34 improves the sealing performance when the parent lid 21 is fitted to the lid frame 3.

The parent lid tubular portion 32 extends downward from the parent lid body 31. The parent lid tubular portion 32 is provided in the parent lid body 31 so as to surround the fitting hole 33 in a bottom view. In this embodiment, the parent lid tubular portion 32 extends downward from the edge of the fitting hole 33 in the parent lid body 31. It should be noted that one or a plurality of slits may be formed in the lid cylindrical portion 32. Further, in the present embodiment, the main lid main body 31 and the main lid tubular portion 32 are integrally molded, but they may be separate bodies.

The child lid 22 fits into a fitting hole 33 formed in the parent lid body 31 of the parent lid 21. As shown in FIG. 1, the child lid 22 has a shape corresponding to the fitting hole 33, and is disk-shaped here. As shown in FIG. 2, an annular seal member 35 that is in contact with the parent lid body 31 when the child lid 22 is fitted to the parent lid 21 is attached to the child lid 22. The seal member 35 is made of rubber, for example, but the type of the seal member 35 is not particularly limited. The sealing member 35 improves the sealing performance when the child lid 22 is fitted to the parent lid 21.

The deodorant valve mechanism 40 is a mechanism that suppresses leakage of a bad odor in the conduit 1 to the outside. In the present embodiment, the deodorant valve mechanism 40 is attached to the parent lid 21. Therefore, by fitting the master lid 21 to the lid frame 3, the deodorant valve mechanism 40 can be arranged in the vertical pipe 2. By removing the main lid 21 from the lid frame 3, the deodorant valve mechanism 40 can be taken out from the inside of the standing pipe 2. The deodorizing valve mechanism 40 includes a connecting tubular portion 41, a deodorizing valve 42, and a sealing member 43.

The connection tubular portion 41 extends downward from the parent lid tubular portion 32. The connection tubular portion 41 has a connection fitting portion 51 that fits into the parent lid tubular portion 32, a connection vertical portion 52 that extends downward from the connection fitting portion 51, and a flange 53. In the present embodiment, when the parent lid tubular portion 32 and the connection fitting portion 51 are fitted to each other, the parent lid tubular portion 32 is a receptacle and the connection fitting portion 51 is a spigot. However, the parent cover tubular portion 32 may be a spigot, and the connection fitting portion 51 may be a receptacle.

The inner diameter of the connection vertical portion 52 is smaller than the inner diameter of the connection fitting portion 51. Therefore, a step portion 55 is provided between the connection fitting portion 51 and the connection vertical portion 52. Further, in the present embodiment, an inclined surface 56 that is inclined inward in the radial direction of the connection tubular portion 41 as it extends downward is formed in a part of the upper portion of the connection vertical portion 52. Therefore, the inner diameter and the outer diameter of the upper end of the connection vertical portion 52 are larger than the inner diameter and the outer diameter of the lower end of the connection vertical portion 52, respectively.

3, 4, 5, and 6 are a plan view, a front view, a right side view, and a bottom view of the connecting tubular portion 41, respectively. As shown in FIG. 4, the flange 53 extends from the connection vertical portion 52 toward the radially outer side of the connection tubular portion 41. In the present embodiment, the flange 53 extends from the upper end of the connection vertical portion 52 (in other words, the lower end of the connection fitting portion 51) toward the radially outer side of the connection tubular portion 41. However, the position of the flange 53 is not particularly limited, and may extend, for example, from the lower portion of the connection vertical portion 52 toward the outer side in the radial direction. As shown in FIG. 2, when the connection tubular portion 41 is fitted into the parent lid tubular portion 32, the lower end of the parent lid tubular portion 32 contacts the flange 53.

As shown in FIG. 3, two grooves 58 are formed in the flange 53 at positions facing each other with the center C1 of the connecting tubular portion 41 interposed therebetween. As shown in FIG. 5, these grooves 58 are continuous with the edge of the flange 53 and are recessed downward. In addition, in the present embodiment, as shown in FIG. 3, a notch 59 is formed in the edge of the flange 53 at a position different from the groove 58 and facing each other with the center C1 interposed therebetween. As shown in FIG. 4, a protruding portion 59 a protruding upward is provided on the edge of the cutout 59. As shown in FIG. 3, the shape of the projecting portion 59a is a U shape in a plan view.

As shown in FIG. 2, the deodorant valve 42 is provided in the connection tubular portion 41 so that the lower opening of the connection tubular portion 41 can be opened and closed. In the present embodiment, the deodorizing valve 42 is provided at the lower end of the connecting vertical portion 52 of the connecting tubular portion 41. The deodorant valve 42 has an arm 61, a support shaft 62, a valve body 63, and a weight 64. The arm 61 is provided on the outer peripheral surface of the connection vertical portion 52 of the connection tubular portion 41. In the present embodiment, as shown in FIG. 6, there are two arms 61, and the two arms 61 sandwich a straight line L1 extending from the center C1 of the connecting tubular portion 41 toward the groove 58 in a bottom view. Facing each other. However, the number of arms 61 is not particularly limited, and may be one.

The support shaft 62 is supported by the arm 61, and extends in a direction (here, front-back direction) orthogonal to the axial direction (here, vertical direction) of the connection tubular portion 41. Here, the support shaft 62 is bridged over the two arms 61. As shown in FIG. 2, the valve element 63 can be attached to the lower end of the connection tubular portion 41 (in other words, the lower end of the connection vertical portion 52). The valve body 63 is configured to open and close an opening below the connection vertical portion 52 of the connection tubular portion 41. The valve body 63 is supported by the support shaft 62, and is swingably supported by the arm 61 via the support shaft 62.

The shape of the valve body 63 is not particularly limited. In the present embodiment, as shown in FIG. 2, the valve element 63 has a container shape that opens upward. Specifically, the valve body 63 includes a closing plate portion 63c and an enclosing portion 63b. The closing plate portion 63c closes the connection tubular portion 41 (specifically, the connection vertical portion 52) when the valve body 63 is attached to the lower end of the connection tubular portion 41. The closing plate portion 63c has a plate shape. The enclosure portion 63b extends at least upward from the edge of the closing plate portion 63c when the valve body 63 is attached to the lower end of the connection tubular portion 41. In this embodiment, the enclosure 63b extends obliquely upward from the edge of the closing plate 63c and away from the closing plate 63c.

FIG. 7 is a plan view of the valve body 63. As shown in FIGS. 2 and 7, the valve body 63 is attached to the valve shaft 63 so as to extend toward the opposite side (right side in FIG. 7) of the connecting tubular portion 41 (see FIG. 2) with respect to the axis 62a of the support shaft 62. The portion 63a is provided.

As shown in FIG. 2, the weight 64 is arranged on the opposite side of the valve body 63 with respect to the axis 62 a of the support shaft 62, and is swingably supported by the arm 61 via the support shaft 62. In FIG. 2, the valve body 63 is arranged on the left side of the axis 62a, and the weight 64 is arranged on the right side of the axis 62a. Here, the weight 64 is attached so as to be attachable to the attachment portion 63a of the valve body 63, and is fixed to the attachment portion 63a by the bolt 66 and the washer 67. In the present embodiment, the valve body 63 and the weight 64 are separate bodies, but the valve body 63 and the weight 64 may be integrally formed.

In the present embodiment, the weight of the weight 64 is larger than the weight of the valve body 63. Therefore, for example, when water such as dirty water is not accumulated on the valve body 63, an upward force acts on the valve body 63 around the axis 62a. Therefore, as shown in FIG. 2, the valve body 63 is in a closed state. On the other hand, for example, when water accumulates on the valve body 63 and the weight of the water and the valve body 63 becomes larger than the weight of the weight 64, a downward force acts on the valve body 63 around the axis 62a. As a result, the valve body 63 rotates downward about the axis 62a, so that the valve body 63 is opened as shown in FIG.

As shown in FIG. 2, the seal member 43 is provided between the connecting tubular portion 41 and the valve element 63 when the valve element 63 is attached to the lower end of the connecting tubular portion 41. The seal member 43 is provided on the connecting tubular portion 41 and contacts the valve body 63. Specifically, the seal member 43 is attached to a portion of the deodorant valve 42 that can come into contact with the valve body 63. When the valve body 63 is closed, the seal member 43 is interposed between the valve body 63 and the connecting tubular portion 41. The sealing member 43 improves the sealing performance when the valve body 63 is closed. The type of the seal member 43 is not particularly limited, but is, for example, annular rubber. The seal member 43 can be omitted. The seal member 43 may be attached to the valve body 63. In this case, the seal member 43 is provided on the valve body 63 and contacts the connecting tubular portion 41.

Next, the pipe joint 70 will be described. FIG. 8 shows a state in which the pipe line 1 and the connecting pipe 5 are connected by the pipe joint 70. As shown in FIG. 8, the pipe joint 70 is a joint that connects the pipe line 1 and the connection pipe 5 arranged above the pipe line 1. The connection pipe 5 will be described later. When using the pipe joint 70, the pipe joint 70 is connected to the connection tubular portion 41. When the pipe joint 70 is not used and is not used, the pipe joint 70 is housed inside the vertical pipe 2 as shown in FIG. 2.

9 and 10 are a front view and a plan view of the pipe joint 70, respectively. As shown in FIGS. 9 and 10, the pipe joint 70 is a tubular member. The pipe joint 70 has a joint fitting portion 71, a diameter-expanded tubular portion 72, and an intermediate tubular portion 73.

As shown in FIG. 8, the joint fitting portion 71 fits into the connecting tubular portion 41 when the pipe joint 70 is used. In the present embodiment, the connection tubular portion 41 is a receiving port for the joint fitting portion 71, and the joint fitting portion 71 is a spigot. As shown in FIG. 10, the joint fitting portion 71 has a vertically extending cylindrical shape.

As shown in FIG. 9, the expanded diameter tubular portion 72 is located above the joint fitting portion 71. The inner diameter and the outer diameter of the expanded diameter tubular portion 72 are larger than the inner diameter and the outer diameter of the joint fitting portion 71, respectively. However, the inner diameter and the outer diameter of the expanded cylindrical portion 72 may be the same as the inner diameter and the outer diameter of the joint fitting portion 71, respectively, or may be smaller than the inner diameter and the outer diameter of the joint fitting portion 71. Good. The shape of the enlarged diameter tubular portion 72 is not particularly limited, but is, for example, a vertically extending cylindrical shape. The intermediate tubular portion 73 is located between the joint fitting portion 71 and the expanded diameter tubular portion 72, and is continuous with the joint fitting portion 71 and the expanded diameter tubular portion 72. In the present embodiment, the intermediate tubular portion 73 is inclined inward in the radial direction from the joint fitting portion 71 toward the expanded diameter tubular portion 72.

The pipe joint 70 may be composed of one member or may be composed of a plurality of members. In the present embodiment, as shown in FIG. 2, the pipe joint 70 is composed of two members, a first main body 75 and a second main body 76. The first main body 75 constitutes part of the expanded diameter tubular portion 72, the intermediate tubular portion 73, and the joint fitting portion 71. At least a part of the second main body 76 is arranged below the first main body 75. The second main body 76 is fitted into a portion of the first main body 75 that constitutes the joint fitting portion 71. The second main body 76 constitutes the joint fitting portion 71.

As shown in FIG. 10, a pair of support protrusions 78 are formed on the inner peripheral surface of the pipe joint 70. Here, the pair of support protrusions 78 are formed on the upper portion of the inner peripheral surface of the expanded diameter tubular portion 72 of the pipe joint 70. The pair of support protrusions 78 are opposed to each other with the center C2 of the pipe joint 70 interposed therebetween in a plan view, and project toward the center C2. As shown in FIG. 2, the upper and lower positions of the pair of support protrusions 78 are the same. Here, as shown in FIG. 10, a line passing through the two support protrusions 78 in plan view is an axis line 78a. As shown in FIG. 7, in plan view, the axis line 78a passing through the two support protrusions 78 and the axis line 62a of the support shaft 62 of the deodorant valve 42 are orthogonal to each other. Here, “orthogonal” includes a slight error in addition to the case of being strictly orthogonal.

FIG. 11 is an enlarged view of the portion A of FIG. In the present embodiment, as shown in FIG. 11, when the pipe joint 70 is housed inside the vertical pipe 2 when not in use, the tip end of the support protrusion 78 of the pipe joint 70 has the flange 53 of the connection tubular portion 41. It is placed in the groove 58 formed in the. In such a state, the pipe joint 70 is supported by the connection tubular portion 41 via the support protrusion 78. As shown in FIG. 2, in the state where the expanded diameter tubular portion 72 of the pipe joint 70 is arranged between the vertical pipe 2 and the connecting vertical portion 52 of the connecting tubular portion 41, the pipe joint 70 is Housed inside. At this time, the pipe joint 70 can swing about an axis 78a passing through the two support protrusions 78.

Next, a procedure for housing the pipe joint 70 in the vertical pipe 2 will be described. In the present embodiment, when housing the pipe joint 70 in the vertical pipe 2, first, the master lid 21 is removed from the lid frame 3. Since the connection tubular portion 41 is connected to the parent lid 21, when the parent lid 21 is removed, the connection tubular portion 41 moves together with the parent lid 21. After that, the support projection 78 of the pipe joint 70 passes through the cutout 59 (see FIG. 3) of the flange 53 of the connection tubular portion 41 so that the connection tubular shape is formed in the expanded diameter tubular portion 72 of the pipe joint 70. The part 41 is inserted. As a result, the support protrusion 78 is located above the flange 53, and in this state, the pipe joint 70 is rotated with respect to the connecting tubular portion 41. When the support protrusion 78 is located above the groove 58 of the flange 53, the support protrusion 78 is placed in the groove 58 of the flange 53, as shown in FIG. As a result, the pipe joint 70 is in a state of being supported by the connecting tubular portion 41 by the support protrusion 78. After that, as shown in FIG. 2, the parent lid 21 is fitted to the lid frame 3. As a result, the pipe joint 70 is housed in the vertical pipe 2.

Next, a procedure for connecting the conduit 1 and the connecting pipe 5 by the pipe joint 70 will be described. As shown in FIG. 8, the connection pipe 5 extends vertically above the standing pipe 2. FIG. 12 is a diagram showing the temporary toilet 8. As shown in FIG. 12, the connection pipe 5 constitutes, for example, a part of the temporary toilet 8. The specific configuration of the temporary toilet 8 is not limited at all. In the present embodiment, the temporary toilet 8 includes a bowl 9a that constitutes a toilet bowl, a connecting pipe 5 that is continuous with the bowl 9a, a water supply tank 9b that stores water, and a frame 9c that supports the bowl 9a and the water supply tank 9b. I have it. The connecting pipe 5 and the bowl 9a may be integrally formed or may be separate bodies.

As shown in FIG. 8, when connecting the conduit 1 and the connecting pipe 5 via the pipe joint 70, first, the parent lid 21 and the child lid 22 are removed from the lid frame 3. At this time, the connecting tubular portion 41, the deodorizing valve 42, and the pipe joint 70 move to the outside of the stand pipe 2 together with the parent lid 21. Next, the pipe joint 70 is rotated with respect to the connection tubular portion 41. After that, the support projection 78 of the pipe joint 70 is passed through the notch 59 (see FIG. 3) of the flange 53 of the connection tubular portion 41, and the pipe joint 70 is pulled out from the connection tubular portion 41. After that, the master lid 21 is fitted again to the lid frame 3. At this time, the connecting tubular portion 41 and the deodorizing valve 42 are placed inside the standpipe 2. Next, the joint fitting portion 71 of the pipe joint 70 is inserted into the fitting hole 33 of the parent lid 21, and the joint fitting portion 71 is fitted into the connection fitting portion 51 of the connecting tubular portion 41. At this time, the pipe joint 70 is supported by the connection tubular portion 41 with the lower end of the joint fitting portion 71 in contact with the step portion 55 of the connection tubular portion 41. After that, the temporary toilet 8 is moved above the pipe joint 70, and the connecting pipe 5 is connected to the expanded diameter tubular portion 72 of the pipe joint 70.

In the present embodiment, the outer diameter of the connection pipe 5 is shorter than the distance between the tips of the pair of support protrusions 78. Therefore, the pipe joint 70 and the connection pipe 5 are connected by inserting the connection pipe 5 into the expanded diameter tubular portion 72 of the pipe joint 70. Here, in "connecting the connecting pipe 5 to the expanded diameter tubular portion 72", in addition to the state in which a gap is formed between the expanded diameter tubular portion 72 and the connection pipe 5, as in the present embodiment, A gap is not formed between the enlarged diameter tubular portion 72 and the connection pipe 5, and the enlarged diameter tubular portion 72 and the connection pipe 5 are fitted together, or through the other member, the enlarged diameter tubular shape. A state in which the portion 72 and the connecting pipe 5 are indirectly connected is also included. In this way, the pipe joint 70 can connect the pipeline 1 to the temporary toilet 8.

In the present embodiment, the dirty water discharged from the temporary toilet 8 passes through the connecting pipe 5 and the pipe joint 70, and is discharged to the pipe line 1. In the pipe line 1, dirty water passes through the connecting tubular portion 41 and is collected in the valve body 63 of the deodorizing valve 42. When the weight of the dirty water accumulated on the valve body 63 and the weight of the valve body 63 becomes larger than the weight of the weight 64, the valve body 63 rotates downward around the axis 62a, so that the valve body 63 is opened. When the valve body 63 is opened, the dirty water accumulated on the valve body 63 falls, passes through the inside of the standing pipe 2, and is discharged to the main sewer pipe (not shown).

As described above, in the present embodiment, as shown in FIG. 2, the connection tubular portion 41 provided with the deodorant valve 42 is fitted to the parent lid tubular portion 32 of the parent lid 21. As a result, the master lid 21 is provided with the deodorizing valve 42. Therefore, by fitting the master lid 21 provided with the deodorizing valve 42 to the lid frame 3, the deodorizing valve 42 is arranged in the vertical pipe 2. Therefore, even if the standing pipe 2 is not provided with the deodorizing valve, the deodorizing valve 42 can be easily arranged in the standing pipe 2 without processing the standing pipe 2.

For example, when the existing lid fitted to the lid frame 3 of the existing stand tube 2 is composed of the parent lid 21 and the child lid 22 as in the present embodiment, the parent lid tube of the existing parent lid 21. The deodorizing valve mechanism 40 including the connecting tubular portion 41 and the deodorizing valve 42 is attached to the tubular portion 32. Thus, the existing lid can be provided with the deodorant valve mechanism 40. Therefore, by fitting the existing lid to the lid frame 3, the deodorant valve 42 can be arranged in the existing standpipe 2.

For example, the existing lid fitted to the lid frame 3 of the existing standpipe 2 is not a lid composed of the parent lid 21 and the child lid 22 as in the present embodiment but a lid composed of one member. In some cases, the lid may be a lid that does not have the parent lid tubular portion 32. In these cases, a new lid 20 including a parent lid 21 and a child lid 22 provided with the deodorizing valve mechanism 40 as in the present embodiment is prepared. Then, by replacing the existing lid with the new lid 20 and fitting the new lid 20 into the lid frame 3, the deodorant valve 42 can be arranged in the existing standpipe 2.

In the present embodiment, as shown in FIG. 2, the connection tubular portion 41 is provided with a flange 53 extending outward in the radial direction of the connection tubular portion 41 and capable of contacting the lower end of the parent lid tubular portion 32. It is provided. The position of the connecting tubular portion 41 with respect to the parent lid tubular portion 32 when the lower end of the parent lid tubular portion 32 comes into contact with the flange 53 is such that the connecting tubular portion 41 fits securely to the parent lid tubular portion 32. It is the position. Therefore, when the connecting tubular portion 41 is fitted into the parent tubular portion 32, the connecting tubular portion 41 is held until the lower end of the parent tubular portion 32 comes into contact with the flange 53 of the connecting tubular portion 41. The connection tubular portion 41 can be securely fitted into the parent lid tubular portion 32 by being pushed into the tubular portion 32.

In this embodiment, the deodorant valve 42 includes an arm 61, a support shaft 62, a valve body 63, and a weight 64. The arm 61 is provided on the outer peripheral surface of the connection tubular portion 41. The support shaft 62 is supported by the arm 61. The valve body 63 can be attached to the lower end of the connection tubular portion 41, and is swingably supported by the arm 61 via a support shaft 62. The weight 64 is arranged on the opposite side of the valve body 63 with respect to the axis 62 a of the support shaft 62, and is swingably supported by the arm 61 via the support shaft 62. The weight of the weight 64 is larger than that of the valve body 63. As a result, when no dirty water is collected on the valve body 63, an upward force acts on the valve body 63 around the axis 62a, so that the valve body 63 is closed as shown in FIG. be able to. On the other hand, when dirty water accumulates on the valve body 63 and the weight of the dirty water and the weight of the valve body 63 becomes larger than the weight of the weight 64, a downward force acts on the valve body 63 around the axis 62a, as shown in FIG. Then, the valve body 63 is opened. Therefore, the valve body 63 can be opened and closed according to the amount of dirty water (here, dirty water discharged from the temporary toilet 8) flowing from the outside of the standing pipe 2 into the standing pipe 2.

In the present embodiment, as shown in FIG. 2, when the valve body 63 is attached to the lower end of the connecting tubular portion 41, the closing plate portion 63 c that closes the connecting tubular portion 41 and the connecting tubular portion 41. And an enclosure portion 63b extending at least upward from the edge of the closing plate portion 63c when attached to the lower end of the. As a result, when the valve body 63 is attached to the connecting vertical portion 52 of the connecting tubular portion 41, water can be stored in the valve body 63. The water accumulated in the valve body 63, together with the closing plate portion 63c of the valve body 63, separates the inside and the outside of the standing pipe 2 and plays a role of blocking the odor in the standing pipe 2 from the outside. Therefore, it is possible to make the odor inside the standing pipe 2 less likely to leak to the outside.

In the present embodiment, as shown in FIG. 2, the seal member 43 is provided between the connection tubular portion 41 and the valve body 63 when the valve body 63 is attached to the lower end of the connection tubular portion 41. Has been. As a result, the adhesion between the connecting tubular portion 41 and the valve body 63 can be improved. Therefore, it is possible to prevent the odor from leaking through the gap between the connection tubular portion 41 and the valve body 63.

In the present embodiment, the connecting tubular portion 41 is provided with an inclined surface 56 that is disposed above the weight 64 and that is inclined inward in the radial direction of the connecting tubular portion 41 as it goes downward. This ensures a space below the inclined surface 56 of the connecting tubular portion 41. Therefore, by disposing the weight 64 in that space, a space for disposing the weight 64 can be secured.

The lid 20 according to the present embodiment has been described above. In the above embodiment, the parent lid tubular portion 32 of the parent lid 21 and the connection tubular portion 41 are separate bodies. However, the parent lid tubular portion 32 and the connecting tubular portion 41 may be integrally formed.

In the above embodiment, the connecting pipe 5 is connected to the temporary toilet 8. However, the connection destination of the connection pipe 5 is not limited to the temporary toilet 8. For example, the connecting pipe 5 may be connected to a container or the like from which detergent or dust is discharged at a stall.

In the above embodiment, the standing pipe 2 is buried in the ground. However, the standing pipe 2 may be arranged on the ground or in the building.

2 Stand tube 3 Lid frame 20 Lid 21 Parent lid 22 Child lid 31 Parent lid main body 32 Parent lid tubular portion 33 Fitting hole 40 Deodorant valve mechanism 41 Connection tubular portion 42 Deodorant valve 61 Arm 62 Support shaft 63 Valve body 64 Weight

Claims (6)

It has a main lid main body that is fitted to a lid frame provided on the upper end of the standing pipe and has a fitting hole that penetrates vertically, and a main lid tubular portion that extends downward from the main lid main body. A deodorant valve mechanism attached to a lid having a parent lid and a child lid fitted into the fitting hole,
A connection tubular portion that can be fitted to the parent lid tubular portion,
A deodorant valve provided in the connection tubular portion so that the lower opening of the connection tubular portion can be opened and closed,
Deodorant valve mechanism equipped with. The deodorant valve mechanism according to claim 1, wherein the connection tubular portion is provided with a flange extending outward in the radial direction of the connection tubular portion. The deodorant valve includes a valve body that can be attached to the lower end of the connection tubular portion,
The deodorizing valve according to claim 1 or 2, further comprising a seal member that is provided on the connection tubular portion and is in contact with the valve body, or is provided on the valve body and is in contact with the connection tubular portion. mechanism. The deodorant valve includes a valve body that can be attached to the lower end of the connection tubular portion,
The valve body is
When attached to the lower end of the connection tubular portion, a closing plate portion that closes the connection tubular portion,
When attached to the lower end of the connection tubular portion, an enclosure portion extending at least upward from the edge of the closing plate portion,
The deodorizing valve mechanism according to any one of claims 1 to 3, further comprising: The deodorant valve is
An arm provided on the outer peripheral surface of the connection tubular portion,
A support shaft supported by the arm and extending in a direction orthogonal to the axial direction of the connection tubular portion;
A valve body that can be mounted on the lower end of the connection tubular portion and that is swingably supported by the arm via the support shaft;
A weight arranged on the opposite side of the valve body with respect to the axis of the support shaft and swingably supported by the arm via the support shaft;
Equipped with
The connecting tubular portion is provided above the weight, and is provided with an inclined surface that is inclined toward the inner side in the radial direction of the connecting tubular portion as it goes downward. The deodorant valve mechanism described in any one. A deodorant valve mechanism according to any one of claims 1 to 5,
It has a main lid main body that is fitted to a lid frame provided at the upper end of the standing pipe and has a fitting hole that penetrates vertically, and a main lid tubular portion that extends downward from the main lid main body. With a lid,
A child lid fitted in the fitting hole,
With a lid.

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