JP2022165687A - Deodorization valve mechanism and lid equipped therewith - Google Patents

Abstract

To provide a deodorization valve mechanism having high versatility allowing attachment to a parent lid of various sizes, to the lid having the parent lid and a child lid.SOLUTION: A deodorization valve mechanism 50 is removably provided to a parent lid 21 in a lid 20 having the parent lid 21 and a child lid 22. The parent lid 21 has a parent lid body 31 formed with a vertically penetrated engagement hole 33 and a step part 32a projected inward in the radial direction from a peripheral surface of the engagement hole 33. The child lid 22 is engaged with the engagement hole 33. The deodorization valve mechanism 50 has a vertically extended cylindrical part 51, a flange 52 and a deodorization valve 54. The flange 52 projects outward in the radial direction from an outer peripheral surface of the cylindrical part 51. and placed on the step part 32a of the parent lid 21. The deodorization valve 54 is provided to the cylindrical part 51 to allow opening/closing of an opening at a lower side of the cylindrical part 51.SELECTED DRAWING: Figure 10

Description

The present invention relates to a deodorant valve mechanism and a lid provided with the same. Specifically, it relates to a deodorant valve mechanism attached to a parent-child lid, and a lid provided with a deodorant valve mechanism, a parent lid, and a child lid.

For example, Patent Literature 1 discloses a lid provided with a deodorizing valve mechanism. This lid is a parent-child lid comprising a parent lid and a child lid. The cover has a cover main body in which a vertically penetrating fitting hole is formed, and a cover tubular portion extending downward from the cover main body. The secondary lid fits into a fitting hole formed in the primary lid body.

The deodorant valve mechanism provided by this lid is attached to the parent lid. The deodorant valve mechanism includes a vertically extending connection tubular portion that can be fitted to the parent lid tubular portion of the parent lid, and a deodorant valve that can open and close an opening on the lower side of the connection tubular portion. When attaching the deodorant valve mechanism to the parent lid, the connecting tubular portion is fitted to the parent lid tubular portion so that the connecting tubular portion extends downward from the parent lid tubular portion. This allows the deodorant valve mechanism to be attached to the parent lid. Then, for example, by fitting the parent lid into a cover frame provided in a pipeline through which sewage flows, the deodorant valve mechanism can be arranged in the pipeline.

JP 2020-90833 A

By the way, there are various sizes (in other words, various sizes of outer diameters) of parent lids in the parent and child lids to which the deodorizing valve mechanism disclosed in Patent Document 1 is attached. Depending on the size of the parent lid, the diameter of the parent lid tubular portion of the parent lid into which the connection tubular portion of the deodorizing valve mechanism is fitted changes. Therefore, the diameter of the connecting tubular portion of the deodorizing valve mechanism changes according to the diameter of the parent lid tubular portion. That is, in the deodorant valve mechanism disclosed in Patent Document 1, it was necessary to prepare a deodorant valve mechanism having a connection cylindrical portion with a diameter corresponding to the size of the parent lid. The deodorizing valve mechanism is preferably highly versatile for parent lids of various sizes, and the manufacturing cost can be reduced by using a highly versatile deodorizing valve mechanism.

The present invention has been made in view of this point, and its object is to provide a highly versatile deodorant that can be attached to various sizes of parent lids for lids equipped with parent lids and child lids. An object of the present invention is to provide a valve mechanism and a lid with the same.

The inventors of the present application conducted various studies on the configuration of the deodorant valve mechanism that can be attached to parent lids of various sizes. As a result of various investigations, it was noted that the size of the outer diameter of the peduncle fitted to the peduncle does not change for various sizes of the peduncle. In other words, the inventors have focused on the fact that the size of the fitting hole into which the child lid is fitted does not change even if the parent lid has various sizes. They also found that by attaching the deodorizing valve mechanism to the fitting hole of the parent lid, it is possible to provide a highly versatile deodorizing valve mechanism that can be attached to various sizes of the parent lid.

That is, the deodorant valve mechanism according to the present invention includes a parent lid body having a vertically penetrating fitting hole formed thereon, and a parent lid having a step portion protruding radially inward from the peripheral surface of the fitting hole. and a secondary lid that fits into the fitting hole. The deodorant valve mechanism includes a vertically extending cylindrical portion, a flange that protrudes radially outward from the outer peripheral surface of the cylindrical portion and is placed on the stepped portion of the parent cover, and a lower portion of the cylindrical portion. and a deodorizing valve provided in the cylindrical portion so as to be able to open and close the opening.

According to the deodorant valve mechanism according to the present invention, when the deodorant valve mechanism is attached to the parent lid of the lid, for example, the stepped portion provided on the peripheral surface of the fitting hole of the parent lid is installed in the lid frame. Place the flange of the deodorant valve mechanism on the As a result, the stepped portion of the parent lid supports the flange, and the deodorant valve mechanism can be attached to the parent lid. Therefore, even if the outer diameter of the parent lid changes, by attaching the deodorant valve mechanism to the stepped portion provided on the peripheral surface of the fitting hole that does not change in size, the parent lid of various sizes can be used. It is possible to provide a highly versatile deodorant valve mechanism that can be attached to a lid.

According to a preferred aspect of the present invention, the anti-odor valve mechanism includes an annular seal member provided on the upper surface or the lower surface of the flange.

According to the above aspect, when the deodorant valve mechanism is attached to the parent lid, the sealing member can improve the sealing performance between the flange of the deodorant valve mechanism and the fitting hole of the parent lid. Therefore, it is possible to make it difficult for odor emitted from, for example, sewage existing under the lid to leak from between the flange and the peripheral surface of the fitting hole.

According to another preferred aspect of the present invention, the outer diameter of the seal member is smaller than the outer diameter of the flange. An outer peripheral stepped portion is provided between the radially outer side of the seal member and the radially outer side of the flange.

According to the above aspect, the outer peripheral stepped portion of the deodorant valve mechanism is placed on the stepped portion of the peripheral surface of the fitting hole in the parent lid. At this time, the radially outer end of the sealing member comes into contact with the peripheral surface of the fitting hole. Therefore, while the stepped portion of the parent cover supports the outer peripheral stepped portion of the deodorant valve mechanism, it is possible to improve the sealing performance between the flange of the deodorant valve mechanism and the peripheral surface of the fitting hole of the parent cover.

According to another preferred aspect of the present invention, the parent cover has a concave portion that is recessed radially outward from a part of the peripheral surface of the fitting hole and that is recessed downward from the upper surface of the main cover body. have. The seal member is provided with a protrusion that enters the recess.

For example, odors emanating from sewage present under the lid can leak out of the recess in the parent lid. However, according to the above aspect, when the flange of the deodorant valve mechanism is placed on the stepped portion of the outer cover, the protrusion provided on the sealing member enters the concave portion of the outer cover. Therefore, the concave portion is closed by the projection. Therefore, even when the deodorant valve mechanism is attached to the parent lid, it is possible to prevent odors from leaking from the concave portion of the parent lid.

A lid according to the present invention includes any of the deodorant valve mechanisms described above, a parent lid, and a child lid. The parent cover has a main cover body in which a vertically penetrating fitting hole is formed, and a stepped portion protruding radially inward from the peripheral surface of the fitting hole. The secondary lid fits into the fitting hole.

According to the above aspect, by fitting the secondary lid into the fitting hole of the parent lid, it is possible to make it difficult for odors emitted from, for example, sewage existing under the lid to leak from the fitting hole. When the child lid is removed from the fitting hole, the flange of the deodorant valve mechanism is placed on the stepped portion of the parent lid, and the deodorant valve mechanism is attached to the parent lid. With this, even when the child lid is removed from the parent lid, it is possible to prevent odor from leaking by attaching the deodorizing valve mechanism.

To provide a highly versatile deodorant valve mechanism capable of being attached to various sizes of parent lids, and a lid having the same, for a lid having a parent lid and a child lid. can be done.

It is a perspective view showing the deodorant valve mechanism according to the embodiment. It is a figure which shows the usage example of the lid|cover which concerns on embodiment, and is sectional drawing of a storage tank. It is a top view of the lid concerning an embodiment. Fig. 10 is a plan view showing the lid with the sub-lid removed; FIG. 4 is a cross-sectional view of the lid in the VV cross section of FIG. 3, showing a state in which the lid is attached to the inspection opening; FIG. 4 is a cross-sectional view of the lid taken along the line VI-VI in FIG. 3, showing a state in which the lid is attached to the inspection opening; FIG. 6 is a cross-sectional view of the lid from which the sub-lid is removed, and is a view equivalent to FIG. 5 ; It is a cross-sectional view of the deodorant valve mechanism according to the embodiment. It is a figure which shows the state which attached the deodorant valve mechanism which concerns on embodiment to the parent lid, and is a figure equivalent to FIG. FIG. 7 is a view showing a state in which the deodorant valve mechanism according to the embodiment is attached to the parent lid, and is a view equivalent to FIG. 6 ; FIG. 10 is an enlarged view of area A in FIG. 9; It is a bottom view of the tube portion of the deodorant valve mechanism according to the embodiment. Fig. 3 is a plan view of the valve body of the deodorant valve in the deodorant valve mechanism according to the embodiment; FIG. 11 is a view equivalent to FIG. 10 showing a state in which the valve body is opened; It is a figure which shows an example of a temporary toilet. FIG. 10 is a view showing a state in which a deodorant valve mechanism according to another embodiment is attached to a parent lid, and is a view equivalent to FIG. 9 ;

An embodiment of the present invention will be described below with reference to the drawings. The embodiment described here is, of course, not intended to specifically limit the invention. In the drawings below, the same reference numerals are given to members and parts that have the same function, and duplicate descriptions will be omitted or simplified as appropriate.

FIG. 1 is a perspective view showing a deodorant valve mechanism 50 according to this embodiment. FIG. 2 is a diagram showing a usage example of the lid 20 and a sectional view of the storage tank 10. As shown in FIG. In this embodiment, the deodorizing valve mechanism 50 shown in FIG. 1 is provided in the lid 20 shown in FIG. As shown in FIG. 2, the lid 20 is attached to an inspection port 11 used for inspecting the inside of the storage tank 10, for example.

In this embodiment, the storage tank 10 is a tank for temporarily storing sewage containing feces discharged from the temporary toilet 4 in the event of a disaster such as an earthquake. The storage tank 10 is buried underground. The storage tank 10 here is not connected to a so-called main sewage pipe, but may be connected to a main sewage pipe. The storage tank 10 here is a dedicated tank for storing sewage in the event of a disaster, and is not used in normal times other than in the event of a disaster. However, the storage tank 10 may be a tank in which water such as rainwater or sewage containing sewage discharged from drainage facilities such as toilets, baths, and kitchen sinks is normally stored.

An inspection port 11 penetrating vertically and a connection port 13 penetrating vertically are formed in the upper surface of the storage tank 10 . The inspection port 11 is used by an operator to inspect the state of the storage tank 10 (for example, the amount of sewage stored in the storage tank 10). Here, the number of inspection openings 11 is one, but may be plural.

A temporary toilet 4 is connected to the connection port 13 in the event of a disaster. Normally, a connection lid (not shown) is fitted into the connection port 13 . In the event of a disaster, the connection lid is removed from the connection port 13 and the temporary toilet 4 is connected to the connection port 13. - 特許庁As a result, the temporary toilet 4 can be used, and the sewage discharged from the temporary toilet 4 is temporarily stored in the storage tank 10 through the connection port 13 . The number of connection ports 13 is not particularly limited, and is plural here. In the example of FIG. 2, the number of connection ports 13 is five. The number of connection ports 13 is appropriately set according to the size of the storage tank 10 .

The lid 20 according to this embodiment is attached to the inspection port 11 of the storage tank 10 . The lid 20 is attached so that the inspection port 11 can be opened and closed. FIG. 3 is a plan view of the lid 20 according to this embodiment. FIG. 4 is a plan view showing the lid 20 with the secondary lid 22 removed. 5 and 6 are cross-sectional views of the lid 20 taken along the VV cross section and the VI-VI cross section of FIG. As shown in FIG. 5 , a lid frame 16 is fitted in the inspection opening 11 , and the lid 20 is fitted to the lid frame 16 . The lid 20 according to this embodiment is a so-called parent-child lid or a double lid. The lid 20 includes a parent lid 21, a secondary lid 22, and an anti-odor valve mechanism 50 (see FIG. 1).

FIG. 7 is a cross-sectional view of the lid 20 from which the secondary lid 22 has been removed, and corresponds to FIG. As shown in FIG. 7, the parent lid 21 has a parent lid main body 31, a first stepped portion 32a, a second stepped portion 32b, a third stepped portion 32c, and a concave portion 35 (see FIG. 6). is doing. The main lid body 31 is a part that fits into the lid frame 16 fitted in the inspection opening 11 . A fitting hole 33 penetrating vertically is formed in the parent lid main body 31 . Although the shape of the fitting hole 33 is not particularly limited, it is circular, for example, as shown in FIG. In this embodiment, the fitting hole 33 is formed in the central portion of the main lid body 31 in plan view, but the position where the fitting hole 33 is formed is not particularly limited.

As shown in FIG. 7, the first stepped portion 32a to the third stepped portion 32c are provided on the peripheral surface of the fitting hole 33 of the main lid body 31. As shown in FIG. The first stepped portion 32a to the third stepped portion 32c protrude radially inward from the peripheral surface of the fitting hole 33. As shown in FIG. In the following description, the radial direction is, for example, the radial direction of the fitting hole 33 or the radial direction of a cylindrical portion 51 (see FIG. 8) described later. In this embodiment, the first stepped portion 32a, the second stepped portion 32b, and the third stepped portion 32c are arranged in this order from top to bottom.

In this embodiment, the peripheral surface of the fitting hole 33 includes a first vertical surface 41, a second vertical surface 42, a third vertical surface 43, a fourth vertical surface 44, a first horizontal surface 46, and a third vertical surface 46. It has two lateral faces 47 and a third lateral face 48 . The first vertical surface 41 constitutes the upper portion of the peripheral surface of the fitting hole 33 and extends vertically. Here, the first vertical surface 41 is inclined inward in the radial direction from top to bottom. The first horizontal surface 46 is connected to the lower end of the first vertical surface 41 and horizontally extends radially inward from the first vertical surface 41 . In this embodiment, the first stepped portion 32 a is a portion formed by the first vertical surface 41 and the first horizontal surface 46 . Here, the first stepped portion 32a is an example of the stepped portion of the present invention.

The second longitudinal surface 42 extends downwardly from the inner edge of the first lateral surface 46 . Although the second vertical surface 42 extends in the direction perpendicular to the first horizontal surface 46 here, it may be inclined radially inward as it goes downward. The second horizontal surface 47 is connected to the lower end of the second vertical surface 42 and horizontally extends radially inward from the second vertical surface 42 . In this embodiment, the second stepped portion 32 b is a portion formed by the second vertical surface 42 and the second horizontal surface 47 .

The third longitudinal surface 43 extends downward from the inner edge of the second lateral surface 47 . Here, the third vertical surface 43 extends in a direction perpendicular to the second horizontal surface 47, but may be inclined radially inward as it goes downward. The third horizontal surface 48 is connected to the lower end of the third vertical surface 43 and horizontally extends radially inward from the third vertical surface 43 . In this embodiment, the third stepped portion 32 c is a portion formed by the third vertical surface 43 and the third horizontal surface 48 . A fourth longitudinal surface 44 extends downwardly from the inner edge of the third transverse surface 48 .

The fourth longitudinal surface 44 extends perpendicular to the third transverse surface 48 . However, the fourth vertical surface 44 may be inclined radially inward as it goes downward.

In addition, in this embodiment, as shown in FIG. 4, the shape of the 1st vertical surface 41, the 1st horizontal surface 46, and the 2nd vertical surface 42 is cyclic|annular. Regarding the second horizontal surface 47, the third vertical surface 43, the third horizontal surface 48, and the fourth vertical surface 44, a part of the fitting hole 33 in the circumferential direction (here, the concave portion 35 on the circumferential surface of the fitting hole 33 and the opposite side) are omitted. In other words, the shape of the second horizontal surface 47, the third vertical surface 43, the third horizontal surface 48 and the fourth vertical surface 44 is C-shaped.

In the present embodiment, as shown in FIG. 7, among the first stepped portion 32a to the third stepped portion 32c, the second stepped portion 32b is arranged radially inward of the first stepped portion 32a. The third stepped portion 32c is arranged radially inward of the second stepped portion 32b.

As shown in FIG. 6 , the recess 35 is recessed radially outward from the peripheral surface of the fitting hole 33 and recessed downward from the upper surface of the main lid body 31 . Here, the recessed portion 35 has a size covering the first vertical surface 41 , the first horizontal surface 46 , the second vertical surface 42 and the second horizontal surface 47 of the peripheral surface of the fitting hole 33 . The bottom surface of the recess 35 has the same vertical position as the second lateral surface 47 . Although the shape of the recess 35 is not particularly limited, here, as shown in FIG. 4, the recess 35 has a substantially rectangular shape in plan view.

As shown in FIG. 5 , the secondary lid 22 fits into a fitting hole 33 formed in the proximal lid main body 31 of the proximal lid 21 . When the secondary lid 22 is fitted into the fitting hole 33, the secondary lid 22 is placed on the first step portion 32a. In this embodiment, as shown in FIG. 3 , the secondary lid 22 has a fitting portion 36 and a convex portion 37 . The fitting portion 36 is a portion that fits into the fitting hole 33 . The fitting portion 36 has a shape corresponding to the fitting hole 33, and is disk-shaped here. Here, the maximum diameter of the fitting portion 36 of the secondary lid 22 is smaller than the maximum diameter of the first vertical surface 41 of the peripheral surface of the fitting hole 33 and larger than the minimum diameter of the first vertical surface 41 . Also, the diameter of the fitting portion 36 of the secondary lid 22 is larger than the diameter of the second longitudinal surface 42 . Therefore, the fitting portion 36 of the secondary lid 22 fits into the first vertical surface 41 of the fitting hole 33 and is placed on the first stepped portion 32a. The fitting portion 36 is configured so as not to enter the second vertical surface 42 of the peripheral surface of the fitting hole 33 .

The convex portion 37 is continuous with the fitting portion 36 . The convex portion 37 protrudes radially outward from a portion of the peripheral end of the fitting portion 36 . The convex portion 37 fits into a concave portion 35 provided on the peripheral surface of the fitting hole 33 of the parent lid 21 . Although the shape of the protrusion 37 is not particularly limited, the protrusion 37 has a shape corresponding to the recess 35, for example. Here, the convex portion 37 has a rectangular parallelepiped shape. In this embodiment, on the upper surface of the child lid 22, a lifting portion 38 used when removing the child lid 22 from the parent lid 21 is provided on the opposite side of the convex portion 37 across the center C1 of the child lid 22. is provided.

In this embodiment, parent lid 21 and child lid 22 are made of cast iron. However, the materials forming the parent lid 21 and the child lid 22 are not particularly limited.

In this embodiment, when removing the child lid 22 from the parent lid 21 , the operator hooks a tool such as a crowbar or a dedicated jig to the lifting portion 38 to lift the child lid 22 . At this time, the convex portion 37 of the secondary lid 22 rotates within the concave portion 35 as indicated by arrow A1 in FIG. Due to the rotation of the projection 37, the secondary lid 22 rotates about the projection 37, and the fitting hole 33 of the parent lid 21 is opened. After the fitting hole 33 is opened, the worker further lifts the secondary lid 22 so that the convex portion 37 is pulled out of the concave portion 35 and the secondary lid 22 can be removed from the parent lid 21 .

For example, when inspecting the inside of the storage tank 10 in FIG. 2, the operator removes the secondary lid 22 from among the lids 20 attached to the inspection opening 11 while the parent lid 21 is attached, as shown in FIG. . Then, the operator checks the inside of the storage tank 10 through the fitting hole 33 and the inspection port 11 . When an operator works inside the storage tank 10 , for example, when cleaning the inside of the storage tank 10 , the operator removes the parent lid 21 of the lid 20 attached to the inspection opening 11 . By removing parent lid 21, child lid 22 is also removed. After removing the parent lid 21 and the child lid 22 in this manner, the operator can enter the storage tank 10 through the inspection opening 11 and work inside.

By the way, in the storage tank 10 shown in FIG. 2, the temporary toilet 4 can be used by connecting the temporary toilet 4 to the connection port 13 at the time of a disaster. In the event of a disaster, the number of temporary toilets 4 connected to the storage tank 10 should preferably be as large as possible. Therefore, in this embodiment, in the event of a disaster, by connecting the temporary toilets 4 to the inspection port 11 in addition to the connection port 13 in the storage tank 10, the number of temporary toilets 4 that can be used in the storage tank 10 can be increased. do more

However, when the temporary toilet 4 is connected to the inspection port 11, the temporary toilet 4 and the storage tank 10 are in communication. Therefore, odor emitted from the sewage stored in the storage tank 10 may leak from the temporary toilet 4 connected to the inspection port 11 through the inspection port 11 . Therefore, in this embodiment, by attaching the deodorant valve mechanism 50 to the parent lid 21 of the lid 20, the odor from the sewage stored in the storage tank 10 is less likely to leak through the inspection port 11.

Next, the deodorant valve mechanism 50 according to this embodiment will be described. As shown in FIG. 1 , the anti-odor valve mechanism 50 includes a cylindrical portion 51 , a flange 52 , a seal member 53 and an anti-odor valve 54 .

FIG. 8 is a cross-sectional view of the deodorant valve mechanism 50 according to this embodiment. 9 and 10 are diagrams showing a state in which the deodorizing valve mechanism 50 is attached to the parent lid 21, and are equivalent to FIGS. 5 and 6, respectively. As shown in FIG. 8, the cylindrical portion 51 is cylindrical and extends vertically. The upper end of the cylindrical portion 51 opens upward, and the lower end of the cylindrical portion 51 opens downward.

As shown in FIG. 9 , when the deodorant valve mechanism 50 is attached to the parent lid 21 , the cylindrical portion 51 is inserted into the fitting hole 33 formed in the parent lid body 31 . Therefore, the outer diameter of the tubular portion 51 is smaller than the diameter of the fitting hole 33 . In this embodiment, when the deodorizing valve mechanism 50 is attached to the parent lid 21 , the vertical positions of the upper end of the cylindrical portion 51 are the same as the vertical positions of the upper surface of the parent lid 21 . However, the upper end of the tubular portion 51 may be arranged above the upper surface of the parent lid 21 or may be arranged below the upper surface of the parent lid 21 .

In this embodiment, as shown in FIG. 8 , the tubular portion 51 has a large diameter tubular portion 61 , an inclined tubular portion 62 and a small diameter tubular portion 63 . The large-diameter tubular portion 61 constitutes the upper portion of the tubular portion 51 . A temporary toilet 4 as shown in FIG. 2 is connected to the large-diameter tubular portion 61 . The inclined tubular portion 62 is arranged below the large-diameter tubular portion 61 and extends downward from the large-diameter tubular portion 61 . The inclined tubular portion 62 is inclined radially inward from top to bottom. The inclined tubular portion 62 has an inner diameter and an outer diameter that gradually decrease from top to bottom. In this embodiment, the inner diameter of the upper end of the inclined tubular portion 62 is smaller than the inner diameter of the lower end of the large-diameter tubular portion 61 . Therefore, an inner peripheral stepped portion 65 is provided between the inner peripheral surface of the large-diameter tubular portion 61 and the inner peripheral surface of the inclined tubular portion 62 .

The small-diameter tubular portion 63 forms a lower portion of the tubular portion 51 and is arranged below the inclined tubular portion 62 . The small-diameter tubular portion 63 extends downward from the inclined tubular portion 62 . The inner diameter of the small-diameter tubular portion 63 is smaller than the inner diameter of the large-diameter tubular portion 61 , and the outer diameter of the small-diameter tubular portion 63 is smaller than the outer diameter of the large-diameter tubular portion 61 . In this embodiment, a portion of the outer peripheral surface of the small-diameter cylindrical portion 63 is formed with an inclined surface 67 that is inclined inward in the radial direction as it goes downward. Therefore, the inner diameter of the upper end of the small-diameter tubular portion 63 is larger than the inner diameter of the lower end of the small-diameter tubular portion 63 , and the outer diameter of the upper end of the small-diameter tubular portion 63 is larger than the outer diameter of the lower end of the small-diameter tubular portion 63 . .

The flange 52 protrudes radially outward from the outer peripheral surface of the tubular portion 51 . In other words, the flange 52 horizontally extends radially outward from the tubular portion 51 . Here, the flange 52 is provided on the large-diameter tubular portion 61 of the tubular portion 51 and protrudes radially outward from the large-diameter tubular portion 61 . However, the position of the flange 52 with respect to the tubular portion 51 is not particularly limited, and the flange 52 may be provided on the inclined tubular portion 62 or may be provided on the small-diameter tubular portion 63, for example.

In this embodiment, as shown in FIG. 1, the flange 52 has an annular shape along the circumferential direction of the outer peripheral surface of the tubular portion 51 . However, a part of the annular flange 52 may be cut off. The shape of the flange 52 is not limited to an annular shape. The inner peripheral shape of the flange 52 has a shape corresponding to the outer peripheral shape of the cylindrical portion 51, and is circular here. The outer peripheral shape of the flange 52 is a shape corresponding to the fitting hole 33 formed in the parent lid 21, and is circular here. However, for example, when the outer peripheral shape of the cylindrical portion 51 and the shape of the fitting hole 33 are square, the inner peripheral shape and outer peripheral shape of the seal member 53 may be square. FIG. 11 is an enlarged view of area A in FIG. When the deodorant valve mechanism 50 is attached to the parent lid 21, as shown in FIG. 11, at least part of the flange 52 contacts the first stepped portion 32a of the parent lid body 31 and is placed on the first stepped portion 32a. It is Here, the radially outer end of the flange 52 (hereinafter also referred to as an outer end portion) is placed on the first stepped portion 32a and supported by the first stepped portion 32a.

As shown in FIG. 8 , the sealing member 53 is an annular member provided on the lower surface of the flange 52 . Here, the “annular” of the seal member 53 refers to a ring-shaped member, and refers to a state in which the seal member 53 is provided over the entire circumference of the cylindrical portion 51 . Here, the "annular" is not limited to specific inner and outer circumferential shapes. In this embodiment, the inner peripheral shape of the seal member 53 has a shape corresponding to the outer peripheral shape of the cylindrical portion 51, and is circular here. The outer peripheral shape of the seal member 53 is a shape corresponding to the fitting hole 33 formed in the parent lid 21, and is circular here. However, for example, when the outer peripheral shape of the cylindrical portion 51 and the shape of the fitting hole 33 are square, the inner peripheral shape and outer peripheral shape of the seal member 53 may be square.

The seal member 53 extends radially outward from the outer peripheral surface of the cylindrical portion 51 below the flange 52 . In this embodiment, the sealing member 53 is fixed to the lower surface of the flange 52 . The seal member 53 is fixed to the flange 52 by, for example, an adhesive. The seal member 53 is provided on the large-diameter tubular portion 61 of the tubular portion 51 in the same manner as the flange 52 , but may be provided on the inclined tubular portion 62 or may be provided on the small-diameter tubular portion 63 . Also, the sealing member 53 may be omitted.

In this embodiment, the outer diameter L11 of the seal member 53 is smaller than the outer diameter L12 of the flange 52 . Therefore, an outer peripheral step portion 71 is provided between the seal member 53 and the flange 52 . The outer peripheral stepped portion 71 is formed by the outer end portion of the flange 52 and the end face of the seal member 53 . Here, as shown in FIG. 11 , when the deodorant valve mechanism 50 is attached to the parent lid 21 , the outer peripheral stepped portion 71 is placed on the first stepped portion 32 a of the parent lid 21 .

In this embodiment, the thickness L21 of the seal member 53 is thicker than the thickness L22 of the flange 52, as shown in FIG. The "thickness" here means the vertical length. For example, the thickness L21 of the seal member 53 is twice or more the thickness L22 of the flange 52, preferably three times or more, particularly preferably four times or more. However, the thickness L21 of the seal member 53 may be the same as the thickness L22 of the flange 52, or may be thinner than the thickness L22 of the flange 52.

In this embodiment, as shown in FIG. 9 , when the deodorant valve mechanism 50 is attached to the parent lid 21 , the sealing member 53 contacts the peripheral surface of the fitting hole 33 of the parent lid 21 . In the example of FIG. 11 , part of the bottom surface of the sealing member 53 is in contact with the second horizontal surface 47 of the fitting hole 33 . Although the side surface of the sealing member 53 does not contact the second vertical surface 42 of the peripheral surface of the fitting hole 33 here, the side surface of the sealing member 53 may contact the second vertical surface 42 .

In addition, the material of the sealing member 53 is not particularly limited. In this embodiment, the sealing member 53 is made of a flexible material. Examples of materials for the sealing member 53 include rubber and foamed rubber, and among them, ethylene propylene diene rubber (EPDM) is preferable. For example, the sealing member 53 may be made of a hard material as long as it can make it difficult for the odor in the storage tank 10 to leak through the inspection port 11 .

As shown in FIG. 1, the sealing member 53 is provided with a protrusion 73 . The protrusion 73 protrudes outward from the radially outer end of the seal member 53 . As shown in FIG. 10 , when the deodorant valve mechanism 50 is attached to the parent lid 21 , the projection 73 enters the concave portion 35 of the parent lid 21 . Here, the protrusion 73 rests on the recess 35 . However, if it is possible to make it difficult for the odor in the storage tank 10 to leak from the recess 35 of the parent lid 21 (for example, if the protrusion 73 is in contact with the side surface of the recess 35), the protrusion 73 is placed in the recess 35. It may not be necessary, and a slight gap may be formed between the protrusion 73 and the bottom surface of the recess 35 .

The protrusion 73 has a shape corresponding to the recess 35 of the parent lid 21 . Here, as shown in FIG. 1, the projection 73 has a rectangular parallelepiped shape. The projection 73 is integrally formed with the seal member 53, but may be separate from the seal member 53. Here, the protrusion 73 is made of the same material as the seal member 53 . The protrusion 73 is made of a flexible material such as rubber (here, EPDM). In this embodiment, as shown in FIG. 8, the thickness L23 of the protrusion 73 is the same as the thickness L21 of the seal member 53. As shown in FIG. However, the thickness L23 of the protrusion 73 may be thinner than or thicker than the thickness L21 of the seal member 53 . In this embodiment, the thickness L23 of the projection 73 is smaller than the depth of the recess 35. As shown in FIG. However, the thickness L23 of the protrusion 73 may be the same as the depth of the recess 35, or may be greater than the depth of the recess 35.

As shown in FIG. 8 , the deodorant valve 54 is provided on the tubular portion 51 so as to be able to open and close the opening on the lower side of the tubular portion 51 . In this embodiment, the deodorant valve 54 is provided at the lower end of the small-diameter tubular portion 63 of the tubular portion 51 . In addition, the structure of the deodorant valve 54 is not specifically limited. The deodorant valve 54 has an arm 81 , a support shaft 82 , a valve body 83 and a weight 84 .

The arm 81 is provided on the outer peripheral surface of the small-diameter tubular portion 63 of the tubular portion 51 . Here, the arm 81 extends radially outward from a portion of the small-diameter tubular portion 63 below the inclined surface 67 . 12 is a bottom view of the tubular portion 51. FIG. 12, the valve body 83 and the weight 84 are omitted. In this embodiment, as shown in FIG. 12, the number of arms 81 is two, and the two arms 81 face each other in the front-rear direction. However, the number of arms 81 is not particularly limited, and may be one.

The support shaft 82 is supported by the arm 81 and extends in a direction (here, the front-rear direction) orthogonal to the axial direction (here, the vertical direction) of the cylindrical portion 51 . Here, the support shaft 82 spans two arms 81 .

As shown in FIG. 8, the valve body 83 can be attached to the lower end of the cylindrical portion 51 (in other words, the lower end of the small-diameter cylindrical portion 63). The valve body 83 is configured to open and close the opening on the lower side of the small-diameter cylindrical portion 63 of the cylindrical portion 51 . The valve body 83 is supported by a support shaft 82 and is swingably supported by the arm 81 via the support shaft 82 .

Note that the shape of the valve body 83 is not particularly limited. In this embodiment, as shown in FIG. 8, the shape of the valve body 83 is a vessel shape with an upward opening. Specifically, the valve body 83 includes a closing plate portion 85 and an enclosing portion 86 . The closing plate portion 85 closes the tubular portion 51 (specifically, the small-diameter tubular portion 63 ) when the valve body 83 is attached to the lower end of the tubular portion 51 . The closing plate portion 85 is plate-shaped. The enclosing portion 86 obliquely extends upward from the edge of the closing plate portion 85 and away from the closing plate portion 85 when the valve body 83 is attached to the lower end of the cylindrical portion 51 .

13 is a plan view of the valve body 83. FIG. As shown in FIG. 13, the valve body 83 is provided with a mounting portion 87 extending toward the opposite side (to the right in FIG. 13) of the cylindrical portion 51 (see FIG. 8) with respect to the axis 82a of the support shaft 82. ing.

As shown in FIG. 8, the weight 84 is arranged on the side opposite to the valve body 83 with respect to the support shaft 82, and is swingably supported by the arm 81 via the support shaft 82. As shown in FIG. In FIG. 8 , the valve body 83 is arranged on the left side of the support shaft 82 and the weight 84 is arranged on the right side of the support shaft 82 . Here, the weight 84 is detachably attached to the mounting portion 87 of the valve body 83 and fixed to the mounting portion 87 with a bolt 88 and a washer 89 . In this embodiment, the valve body 83 and the weight 84 are separate bodies, but the valve body 83 and the weight 84 may be integrally formed.

In this embodiment, the weight of the weight 84 is larger than the weight of the valve body 83 . Therefore, for example, when water such as sewage is not accumulated on the valve body 83 , an upward force acts on the valve body 83 around the axis 82 a (see FIG. 13 ) of the support shaft 82 . Therefore, as shown in FIG. 8, the valve body 83 is closed. FIG. 14 is a view corresponding to FIG. 10 showing a state in which the valve body 83 is opened. On the other hand, for example, when water accumulates on the valve body 83 and the total weight of the water and the valve body 83 becomes larger than the weight of the weight 84, the valve body 83 receives downward force around the axis 82a. As a result, the valve body 83 rotates downward about the axis 82a, so that the valve body 83 is opened as shown in FIG.

In this embodiment, a valve seal member 68 may be provided at the lower end of the small-diameter tubular portion 63 of the tubular portion 51 . The valve seal member 68 is provided between the small-diameter cylindrical portion 63 and the valve body 83 and contacts the valve body 83 when the valve body 83 is attached to the lower end of the cylindrical portion 51 . As shown in FIG. 8, the valve seal member 68 is interposed between the valve body 83 and the cylindrical portion 51 when the valve body 83 is closed. This valve seal member 68 improves the sealing performance when the valve body 83 is closed. The valve seal member 68 is, for example, an annular rubber.

The configuration of the deodorant valve mechanism 50 according to the present embodiment has been described above. For example, during normal times other than disasters, as shown in FIG. Normally, the lid frame 16 provided in the inspection port 11 of the storage tank 10 is fitted with the parent lid 21, and the minor lid 22 is fitted with the fitting hole 33 of the parent lid main body 31. there is

The temporary toilet 4 is connected to the inspection port 11 when using the storage tank 10 shown in FIG. At this time, as shown in FIG. 7, first, only the sub-lid 22 of the lid 20 is removed from the inspection opening 11 . Here, first, the worker hooks a tool such as a crowbar or a special jig to the lifting portion 38 of the sub-lid 22 to lift the sub-lid 22 . At this time, as indicated by an arrow A1 in FIG. 6, the secondary lid 22 rotates around the projection 37, and the fitting hole 33 of the primary lid 21 is opened. By further lifting the child lid 22, the projection 37 is pulled out of the recess 35, and the child lid 22 can be removed from the parent lid 21. - 特許庁

After removing the child lid 22, the operator attaches the deodorant valve mechanism 50 to the parent lid 21 as shown in FIG. Here, the cylindrical portion 51 of the deodorant valve mechanism 50 is inserted from above into the fitting hole 33 formed in the main lid body 31 . At this time, as shown in FIG. 10 , it is preferable to insert the cylindrical portion 51 so that the projection 73 provided on the seal member 53 of the deodorant valve mechanism 50 enters the concave portion 35 of the main lid body 31 . As the cylindrical portion 51 continues to be inserted into the fitting hole 33, as shown in FIG. It is placed on the first step portion 32a. As a result, the deodorizing valve mechanism 50 is attached to the parent lid 21 while being supported by the first stepped portion 32a.

After attaching the deodorant valve mechanism 50 to the parent lid 21 in this manner, the temporary toilet 4 is connected to the inspection port 11 . A specific configuration of the temporary toilet 4 is not limited at all. FIG. 15 is a diagram showing an example of the temporary toilet 4. As shown in FIG. In this embodiment, as shown in FIG. 15, the temporary toilet 4 includes a bowl 4a that constitutes a toilet bowl, a connection pipe 5 that continues to the bowl 4a, a water supply tank 4b that stores water, a bowl 4a and a water supply tank 4b. and a frame 4c that supports the Here, the temporary toilet 4 can be installed in the inspection port 11 by connecting the connection pipe 5 of the temporary toilet 4 to the upper end of the tubular portion 51 (here, the upper end of the large-diameter tubular portion 61) of the deodorizing valve mechanism 50. can be done.

In this embodiment, when the temporary toilet 4 is not in use, as shown in FIG. is attached to the lower end of the tubular portion 51 . Therefore, the odor in the storage tank 10 is less likely to leak to the ground through the cylindrical portion 51 of the deodorizing valve mechanism 50 and the temporary toilet 4 .

When the temporary toilet 4 is used, sewage discharged from the temporary toilet 4 flows through the connecting pipe 5 into the cylindrical portion 51 and accumulates in the valve body 83 attached to the lower end of the cylindrical portion 51.例文帳に追加Then, when the total weight of the valve body 83 and the sewage accumulated on the valve body 83 becomes larger than the weight of the weight 84, the valve body 83 moves downward around the support shaft 82 as shown in FIG. Rotate. As a result, the sewage accumulated in the valve body 83 drops and is discharged into the storage tank 10 . When the sewage accumulated on the valve body 83 is discharged, the total weight of the valve body 83 and the sewage accumulated on the valve body 83 becomes smaller than the weight of the weight 84 . Therefore, the valve body 83 rotates upward around the support shaft 82, and the valve body 83 is attached to the lower end of the tubular portion 51 as shown in FIG.

As described above, in this embodiment, as shown in FIG. 5, the lid 20 includes the parent lid 21, the secondary lid 22, and the deodorizing valve mechanism 50 (see FIG. 1). As shown in FIG. 7, the parent lid 21 includes a parent lid main body 31 having a vertically penetrating fitting hole 33 formed therein, and a first stepped portion 32a protruding radially inward from the peripheral surface of the fitting hole 33. and As shown in FIG. 5 , the secondary lid 22 fits into the fitting hole 33 of the primary lid 21 . As shown in FIG. 9 , the deodorant valve mechanism 50 is detachably provided on the parent lid 21 . As shown in FIG. 10 , the deodorant valve mechanism 50 includes a vertically extending tubular portion 51 , a flange 52 , and a deodorant valve 54 . The flange 52 protrudes radially outward from the outer peripheral surface of the cylindrical portion 51 and is placed on the first stepped portion 32 a of the parent lid 21 . The deodorant valve 54 is provided on the cylindrical portion 51 so as to be able to open and close the opening on the lower side of the cylindrical portion 51 .

As a result, when attaching the deodorant valve mechanism 50 to the parent lid 21 of the lid 20, the parent lid 21 is placed on the lid frame 16 provided in the inspection opening 11, and the child lid 22 (see FIG. 5) is removed from the parent lid 21. ). Then, with the fitting hole 33 of the parent lid 21 being open, the flange 52 of the deodorant valve mechanism 50 is placed on the first stepped portion 32 a provided on the peripheral surface of the fitting hole 33 . As a result, the first stepped portion 32 a of the parent lid 21 supports the flange 52 , and the deodorizing valve mechanism 50 can be attached to the parent lid 21 . Therefore, even if the size of the outer diameter of the parent lid 21 changes, by attaching the deodorant valve mechanism 50 to the first stepped portion 32a provided on the peripheral surface of the fitting hole 33 whose size does not change, It is possible to provide a highly versatile deodorant valve mechanism 50 that can be attached to parent lids 21 of various sizes. Moreover, since the deodorant valve mechanism 50 can be attached to the parent lid 21 without removing the parent lid 21 from the lid frame 16, the work time for attaching the deodorant valve mechanism 50 can be shortened.

In the present embodiment, when the temporary toilet 4 is not installed in the inspection port 11 of the storage tank 10, the storage tank 10 can be opened by fitting the secondary lid 22 into the fitting hole 33 of the parent lid 21, as shown in FIG. It is possible to make it difficult for the odor emitted from the sewage inside to leak from the fitting hole 33. - 特許庁When the child lid 22 is removed from the fitting hole 33 in order to install the temporary toilet 4, as shown in FIG. Then, the deodorizing valve mechanism 50 is attached to the parent lid 21 . Thus, even when the child lid 22 is removed from the parent lid 21, by attaching the deodorizing valve mechanism 50, it is possible to prevent odor from leaking.

Moreover, in this embodiment, as shown in FIG. Since the inspection port 11 is not provided with an odor control valve mechanism, if the lid 20 is removed from the inspection port 11 and the temporary toilet 4 is connected to the inspection port 11, the odor in the storage tank 10 will be released through the inspection port 11. It can leak to the ground. However, in this embodiment, the secondary lid 22 is removed from the primary lid 21, and as shown in FIG. By placing it, the deodorant valve mechanism 50 can be installed in the inspection port 11 . Therefore, even when the temporary toilet 4 is connected to the inspection port 11, the odor in the storage tank 10 can be prevented from leaking to the ground through the inspection port 11. - 特許庁Therefore, it is possible to increase the number of temporary toilets 4 connected to the storage tank 10 while making it difficult for the odor in the storage tank 10 to leak to the ground.

In this embodiment, as shown in FIG. 8, the deodorant valve mechanism 50 includes an annular seal member 53 provided on the lower surface of the flange 52. As shown in FIG. As a result, as shown in FIG. 11, when the deodorant valve mechanism 50 is attached to the parent lid 21, the sealing member 53 is attached to the peripheral surface of the fitting hole 33 of the parent lid 21 (here, the second Since it contacts the lateral surface 47), the sealability between the flange 52 of the deodorizing valve mechanism 50 and the peripheral surface of the fitting hole 33 of the main lid 21 can be improved. Therefore, it is possible to prevent odor from leaking from between the flange 52 and the peripheral surface of the fitting hole 33 .

In this embodiment, the thickness L21 of the seal member 53 is thicker than the thickness L22 of the flange 52, as shown in FIG. The sealing member 53 is configured to be able to contact the peripheral surface of the fitting hole 33 of the parent lid 21 . As a result, since the seal member 53 having a relatively large thickness is used, the surface area of the seal member 53 can be increased, and the seal member 53 and the peripheral surface of the fitting hole 33 can be more easily brought into close contact with each other. can. Therefore, the sealing performance between the flange 52 of the deodorant valve mechanism 50 and the peripheral surface of the fitting hole 33 of the main lid 21 can be further improved. Therefore, it is possible to make it more difficult for the odor to leak from between the flange 52 and the peripheral surface of the fitting hole 33 .

In this embodiment, the outer diameter L11 of the seal member 53 is smaller than the outer diameter L12 of the flange 52, as shown in FIG. An outer peripheral step portion 71 is provided between the radially outer side of the seal member 53 and the radially outer side of the flange 52 . As shown in FIG. 11 , the outer peripheral stepped portion 71 of the deodorant valve mechanism 50 is placed on the first stepped portion 32 a of the peripheral surface of the fitting hole 33 in the parent lid 21 . At this time, the radially outer end of the sealing member 53 contacts the peripheral surface of the fitting hole 33 . Therefore, while the first stepped portion 32a of the parent lid 21 supports the outer peripheral stepped portion 71 of the deodorant valve mechanism 50, the flange 52 of the deodorant valve mechanism 50 and the peripheral surface of the fitting hole 33 of the parent lid 21 are sealed. can improve sexuality.

In this embodiment, as shown in FIG. 6 , the main cover 21 is recessed radially outward from a portion of the peripheral surface of the fitting hole 33 and recessed downward from the upper surface of the main cover main body 31 . have. As shown in FIG. 3 , the secondary lid 22 has a fitting portion 36 that fits into the fitting hole 33 and a convex portion 37 that continues from the fitting portion 36 and enters the concave portion 35 . As shown in FIG. 10 , the seal member 53 of the deodorant valve mechanism 50 is provided with a protrusion 73 that enters the recess 35 .

For example, odors emanating from dirty water in the reservoir 10 can escape from the recess 35 of the parent lid 21 . However, in this embodiment, when the flange 52 of the deodorant valve mechanism 50 is placed on the first stepped portion 32 a of the parent lid 21 , the projection 73 provided on the seal member 53 enters the concave portion 35 of the parent lid 21 . Accordingly, the recess 35 is closed by the protrusion 73 . Therefore, even when the deodorizing valve mechanism 50 is attached to the parent lid 21, it is possible to prevent odors from leaking from the concave portion 35 of the parent lid 21. FIG.

In this embodiment, the protrusion 73 is made of rubber (for example, EPDM). As a result, when the protrusion 73 enters the recess 35 of the parent lid 21 , the protrusion 73 easily comes into close contact with the surface forming the recess 35 . Therefore, the concave portion 35 of the parent lid 21 is easily blocked by the protrusion 73, and odors can be made more difficult to leak from the concave portion 35.例文帳に追加

In the above embodiment, the sealing member 53 was provided on the lower surface of the flange 52 . However, the seal member 53 may be provided on the upper surface of the flange 52 like the deodorant valve mechanism 50A according to another embodiment shown in FIG. The seal member 53 extends radially outward from the outer peripheral surface of the cylindrical portion 51 above the flange 52 . In this embodiment, the upper surface of the sealing member 53 is level with the upper end of the tubular portion 51 . In this embodiment, when the deodorizing valve mechanism 50A is attached to the parent lid 21 of the lid 20, the sealing member 53 is arranged at the height of the first vertical surface 41 on the peripheral surface of the fitting hole 33. The top surface is flush with the ground. Therefore, the recess formed by the first vertical surface 41 of the fitting hole 33 of the parent lid 21 , the outer peripheral surface of the cylindrical portion 51 , and the upper surface of the flange 52 is filled with the sealing member 53 . Therefore, for example, it is possible to prevent a worker's foot from entering the recess.

In the above embodiment, the first stepped portion 32a of the parent lid 21 is an example of the stepped portion of the present invention, and the flange 52 of the deodorant valve mechanism 50 is placed on the first stepped portion 32a. However, the stepped portion of the present invention is not limited to the first stepped portion 32a. 32b or the third stepped portion 32c. The flange 52 of the deodorant valve mechanism 50 may be placed on the second stepped portion 32b of the parent lid 21, or may be placed on the third stepped portion 32c.

In the above embodiment, the inspection port 11 to which the lid 20 is attached is formed in the storage tank 10 and the lid 20 is attached to the storage tank 10 . However, the inspection port 11 is not limited to being formed in the storage tank 10 , and the mounting destination of the lid 20 is not limited to the storage tank 10 . For example, the inspection port 11 may be formed in a so-called manhole, or may be formed in a hole. The lid 20 may be attached to a manhole or a trough.

20 lid 21 parent lid 22 child lid 31 parent lid main body 32a first stepped portion (stepped portion)
33 fitting hole 35 concave portion 36 fitting portion 37 convex portion 50 deodorant valve mechanism 51 cylindrical portion 52 flange 53 sealing member 54 deodorant valve 71 outer peripheral step portion 73 projection

Claims (5)

A parent lid main body in which a vertically penetrating fitting hole is formed, a parent lid having a step portion protruding radially inward from the peripheral surface of the fitting hole, and a secondary lid fitted into the fitting hole. and a deodorant valve mechanism detachably provided on the parent lid,
a cylindrical portion extending vertically;
a flange that protrudes radially outward from the outer peripheral surface of the cylindrical portion and is mounted on the stepped portion of the parent cover;
A deodorant valve provided on the cylindrical portion so as to be able to open and close an opening on the lower side of the cylindrical portion;
Equipped with an anti-odor valve mechanism. 2. The deodorant valve mechanism according to claim 1, further comprising an annular seal member provided on the upper surface or the lower surface of said flange. The outer diameter of the seal member is smaller than the outer diameter of the flange,
3. The deodorant valve mechanism according to claim 2, wherein an outer peripheral stepped portion is provided between the radially outer side of the seal member and the radially outer side of the flange. the parent cover has a recess that is radially outwardly recessed from a part of the peripheral surface of the fitting hole and that is recessed downward from the upper surface of the parent cover main body;
4. The deodorizing valve mechanism according to claim 2, wherein the sealing member is provided with a projection that enters into the recess. a deodorant valve mechanism according to any one of claims 1 to 4;
a parent cover having a main cover body in which a vertically penetrating fitting hole is formed, and a step portion protruding radially inward from the peripheral surface of the fitting hole;
a secondary lid that fits into the fitting hole;
with a lid.

Images