JP4340583B2 - Repair cover device for existing public fence - Google Patents

Description

  The present invention relates to an existing public fence repair cover device for repairing an existing public fence.

  Generally, in the area where public sewerage is laid, the most downstream position of the drainage pipe of each household is connected to an existing public pit buried in the ground. And this existing public pit is conventionally formed in a cylindrical shape with concrete having an inner diameter dimension of 450 mm or more mainly at a place where public sewerage has been laid for a long time. And an outlet is formed.

  Moreover, this existing public pit forms an invert part having a ditch-like drainage groove by pouring mortar into the bottom of the existing public pit, and the inlet and the outlet are in communication with each other. Furthermore, this existing public fence has a configuration in which a cylindrical frame member or the like is stacked on the invert part, and the frame member and the invert part are joined together in a watertight manner using a mortar or the like. When the existing public fence is used for a long period of time, the mortar used for joining each frame material and the invert part will peel off due to secular change, and plant roots and rainwater will invade from the outside. It is necessary to repair the joint portion of each frame member.

  However, in order to repair the existing public pit, each of the existing public pit and a drain pipe connected to the existing public pit is buried in the ground. Furthermore, there are many cases where the existing public fence is buried in a narrow place due to housing circumstances. For this reason, especially when concrete is cast on the ground surface, the work of repairing the existing public fence is not easy.

  Thus, there is known an existing public fence repair cover device in which an existing public fence repair cover is attached to the existing public fence so that the existing public fence repair work can be easily performed. In this existing public fence repair cover device, the cover body is installed in the invert portion of the existing public fence. However, the contact portion of the existing public fence that supports the cover body is narrow, and it prevents the intrusion water. Water performance is uncertain and stability is not so good.

For this reason, flange portions are integrally provided on both lower sides of the cover body, and the flange portions are installed in contact with inclined surfaces located on both sides of the drainage grooves of the invert portion of the existing public fence (for example, (See Patent Document 1).
JP 2001-193147 A (page 3-7, FIG. 1, FIG. 6 to FIG. 8)

  As described above, in the repair cover device for existing public fences, in the existing public fences that have been installed in the past, concrete is manually placed at each installation location of the existing public fences. For this reason, the inclined surface of the invert portion of the existing public fence is not formed with a constant gradient but is formed at different angles with variations. Therefore, the inclination angle between the flange portion integrally provided on both lower sides of the cover main body and the cover main body hardly coincides with the inclination of the inclined surface of the invert portion of the existing public fence, and the stability of the cover main body is improved. Since it is not so good, there is a problem that it is not easy to ensure water stopping.

  This invention is made | formed in view of such a point, and it aims at providing the repair cover apparatus for existing public fences which is easy to ensure waterproofness.

  The repair cover device for an existing public fence according to claim 1 includes an invert part having a substantially concave drainage groove and inclined surfaces that are located on both sides of the drainage groove and are inclined downward toward the drainage groove. An existing public fence repair cover device that is disposed in an existing public fence buried in the ground with an inlet and an outlet on the downstream side, and that repairs the existing public fence, opened upward An inlet communication portion that communicates with an inlet of the existing public fence and an outlet communication that communicates with an outlet of the existing public fence in a state where a cleaning pipe receiving port is provided in the upper part and is disposed in the existing public fence A cover body covering each side of the drainage groove of the invert part of the existing public fence, and an invert section provided on the cover body and placed on the inclined surface of the invert part of the existing public fence Flexible to cover the inclined surface It is obtained by including a flange body.

  And the flange body provided in the cover main body is mounted on the inclined surface of the invert part of this existing public fence in the existing public fence buried in the ground. As a result, the inclined surface of the invert portion of the existing public fence is covered with this flange body, and the inlet and outlet of the existing public fence communicate with each other at the inlet communication portion and the outlet communication portion of the cover body. At this time, when the cover main body is disposed in the existing public fence, even if there is a variation in the slope of the inclined surface of the invert portion of the existing public fence, the flexibility of the flange body provided on the cover main body The cover body can be stably disposed in correspondence with the slope of the inclined surface of the invert portion in the existing public fence. Therefore, it is possible to easily ensure the water stoppage of the cover body with respect to the invert portion.

  The repair cover device for an existing public fence according to claim 2 is the repair cover device for an existing public fence according to claim 1, wherein the repair cover device is fitted into the cleaning pipe receptacle of the cover body in the existing public fence, and the cleaning pipe receptacle A cleaning tube that extends upward, and an inner lid that is fitted to the upper portion of the cleaning tube in the existing public tub and closes the cleaning tube.

  Then, in a state where the cover main body is disposed in the existing public fence, the cleaning pipe receiving hole of the cover main body extends upward by fitting the cleaning pipe into the cleaning pipe receiving opening of the cover main body. For this reason, even if earth or sand or water accumulates outside the cover main body and the cleaning tube, the inside of the cover main body can be inspected and cleaned. Further, the upper part of the cleaning tube is closed by the inner lid by fitting the inner lid to the upper part of the cleaning tube fitted to the cleaning pipe receiving port of the cover body. For this reason, intrusion of earth and sand or water into the upper part of the cleaning tube is prevented. Therefore, earth and sand and water do not enter the cover body, and the cover body functions normally for a long period of time.

  According to the repair cover device for an existing public fence according to claim 1, even when the cover body is disposed in the existing public fence, even if the inclined surface of the invert portion of the existing public fence has a variation in gradient, the cover is covered. The flexibility of the flange body provided on the main body allows the cover main body to be stably disposed in accordance with the slope of the inclined surface of the invert portion in the existing public fence. Securement can be facilitated.

  According to the repair cover device for an existing public fence according to claim 2, the cleaning pipe receptacle is directed upward by fitting the cleaning pipe into the cleaning pipe receptacle of the cover body disposed in the existing public fence. Therefore, even if dirt or water accumulates outside the cover body, the inside of the cover body can be inspected and cleaned. Furthermore, since the upper part of the cleaning tube can be closed by the inner lid fitted to the upper part of the cleaning tube, it is possible to prevent intrusion of earth and sand or water into the cleaning tube.

  Hereinafter, the configuration of an embodiment of the existing public fence repair cover device of the present invention will be described with reference to FIGS. 1 to 7.

  1 to 7, reference numeral 1 denotes a repair cover as an existing public fence repair cover device. The repair cover 1 is disposed in an existing public pit 3 that is an existing concrete pit such as a drain pit buried in the ground and connected to a drain pipe (not shown) of each household, for example. Repair. The existing public urn 3 is provided with an urn main body 11 formed of concrete into a substantially cylindrical shape.

  In addition, an inflow port 12 communicating with the drain pipe is formed on the upstream side of the main body 11. For example, a downstream end of a cylindrical upstream pipe 4 formed of a synthetic resin such as PVC, that is, polyvinyl chloride is fitted into the inflow port 12 from the outside. Here, the upstream side of the upstream pipe 4 is connected to the drain pipe. Furthermore, an outlet 13 is formed on the downstream side of the main body 11 facing the inlet 12. For example, an upstream end of a cylindrical downstream pipe 5 made of, for example, a ceramic pipe or a fume pipe is fitted into the outlet 13 from the outside.

  Further, on the heel body 11, the openings 14 located on the upper side and the lower side are stacked concentrically with frame bodies 14 having an inner diameter dimension substantially the same diameter as the heel body 11, and these frame bodies 14 The joint portion between the bag body 11 and the heel body 11 is watertightly connected with, for example, mortar as a bonding agent. Here, the frame body 14 is formed in a substantially cylindrical shape from concrete. An opening 15 for cleaning or inspecting the inside of the existing public fence 3 is opened from the outside on the upper side of the frame body 14.

  A stepped lid receiving step 16 is provided on the inner peripheral edge of the opening 15 in the circumferential direction. The lid receiving step portion 16 engages and holds the outer peripheral edge of the lid body 17 which is an existing lid formed in a substantially disc shape by casting or the like so as to be detachable. That is, the lid 17 is fitted into the opening 15 of the frame 14 and closes the opening 15 so as to be openable and closable. At this time, the lid body 17 is attached in a state where the surface of the lid body 17 is along the ground surface GL where the existing public fence 3 is buried.

  Further, in an eaves main body 11 of the existing public eaves 3, mortar is poured into the eaves main body 11, and an invert portion 21 constituting the bottom of the eaves main body 11 is formed. A drainage groove 22 having a concave cross-sectional shape that communicates the inflow port 12 and the outflow port 13 of the main body 11 is formed at the center of the invert portion 21 in the width direction. The drainage groove 22 is formed in a substantially semicircular shape.

  In addition, a pair of inclined surfaces 23 that are inclined downward toward the drainage groove 22 are formed on both sides in the axial direction as the longitudinal direction of the drainage groove 22. That is, the pair of inclined surfaces 23 are formed in a planar shape downward toward the drainage grooves so that the drainage that has flowed onto the pair of inclined surfaces can be dropped into the drainage grooves by its own weight. It is inclined to. In other words, the pair of inclined surfaces 23 are gradually inclined upward as they go outward.

  Further, the drainage groove 22 is formed with a flowing water gradient A that inclines downward from the inlet 12 side of the main body 11 toward the outlet 13 side.

  On the other hand, the repair cover 1 is formed of synthetic resin such as PVC, that is, polyvinyl chloride. The repair cover 1 includes a cover body 31 that is a substantially convex arc-shaped repair rod body cut along a pair of radial directions facing the cylindrical central axis direction. The cover body 31 is formed so that the cover body 31 can cover the drain groove 22 of the invert section 21 with the cover body 31 disposed on the invert section 21 in the existing public fence 3. Has been.

  Further, at the opposite ends of the cover body 31, that is, at both ends, each of the inlet 12 and the outlet 13 of the existing public fence 3 with the cover body 31 disposed in the existing public fence 3. An inflow port communication portion 32 and an outflow port communication portion 33 that communicate with each other are formed. At this time, each of the inflow port communication portion 32 and the outflow port communication portion 33 is formed in an arc shape in plan view, as shown in FIGS. 3, 4, and 6.

  Further, a cylindrical cleaning tube receiving port 34 that is a repair rod projecting projecting upward is integrally provided and opened at a substantially upper central portion of the cover body 31. The cleaning tube receiving port 34 has an outer diameter dimension larger than the width dimension of the cover body. The cleaning tube receiving port 34 is fitted and bonded with a substantially cylindrical cleaning tube 35 as a rising tube that extends the cleaning tube receiving port 34 upward. The cleaning tube 35 is formed of, for example, PVC, that is, a synthetic resin such as polyvinyl chloride. Further, the cleaning pipe 35 is fitted in the cleaning pipe receiving port 34 of the cover main body 31 arranged in the existing public fence 3, and the entire cleaning pipe 35 is arranged in the existing public fence 3. It is formed to have a certain length dimension.

  Further, on the upper side of the cleaning tube 35, a cleaning port 36, which is an opening extending the cleaning tube receiving port 34 of the cover body 31, is opened. A substantially disc-shaped inner lid 37 is detachably fitted and attached to the cleaning port 36. The inner lid 37 is formed of, for example, PVC, that is, a synthetic resin such as polyvinyl chloride. Further, the upper surface portion of the inner lid 37 is integrally formed with both ends of a substantially arc-shaped gripping portion 38 functioning as a handle for gripping when the inner lid 37 is attached and detached. ing.

  Further, on both sides of the cover main body 31 located between the inlet communication portion 32 and the outlet communication portion 33, an elongated flat plate-shaped connecting piece portion 39 bent in the radial direction of the cover main body 31 is integrated. Provided. These connecting piece portions 39 are provided along the longitudinal direction of the cover main body 31. That is, an intermediate portion along the longitudinal direction of the connecting piece portions 39 is provided over the peripheral edge portion on the proximal end side of the cleaning tube receiving port 34.

  And the packing seat 41 which is a flexible flange seat as a flat-flange-like flange body is attached to the lower surface of these connection piece parts 39, respectively. These packing seats 41 are formed of a material that is a flexible material such as rubber. Further, these packing seats 41 have outer peripheral edges 42 having curvatures slightly smaller than the curvatures of the inlet communication portion 32 and the outlet communication portion 33 of the cover body 31 in plan view. These packing seats 41 have an inner peripheral edge 43 having a curvature slightly larger than the curvature of the cleaning pipe receiving port 34 of the cover body 31 in plan view. Further, on both sides of the inner peripheral edge of the packing seat 41, linear edge portions 44 are formed so that the inner edge can be bonded and fixed to the lower surface of the connecting piece portion 39 of the cover body 31 with an adhesive 45.

  That is, as shown in FIGS. 2 and 5, the packing seats 41 are fixed by adhering the inner peripheral edge of the packing seats 41 and the upper surface side of the edge to the lower surface of the connecting piece portion 39 of the cover body 31. Thus, it is located on both sides of the cover body 31 and protrudes toward the side of the cover body 31, and is attached so that the shape including the cover body 31 is circular in plan view. Therefore, when these packing seats 41 cover the drain grooves 22 of the invert part 21 with the cover body 31, they are deformed corresponding to the inclination angle and surface shape of each inclined surface 23 of the invert part 21. It is configured so that the inclined surface 23 can be reliably covered with a good water-stopping property.

  Next, the construction method of the repair cover apparatus for existing public fences of the said one embodiment is demonstrated.

  The existing public dredging 3 connected to the drainage pipe of each household is cracked or the bonding agent at each joint is peeled off due to long-term use, and rainwater or plant roots from the outside of the existing public dredging 3 In such a case, the waste water flowing into the upstream pipe 4 is first stopped.

  Next, the lid 17 is removed from the opening 15 of the existing public fence 3, and the inside of the existing public fence 3 is cleaned.

  Then, a cover body 31 is disposed in the existing public fence 3. At this time, the inlet communication part 32 of the cover main body 31 is communicated with the inlet 12 of the existing public fence 3, and the outlet communication part 33 of the cover main body 31 is communicated with the outlet 13 of the existing public fence 3.

  As a result, the cover main body 31 covers the drain groove 22 of the invert portion 21 of the existing public fence 3, and each inclination of the invert portion 21 of the existing public fence 3 by the packing seats 41 attached to both sides of the cover main body 31. The surface 23 is covered with good water blocking properties.

  Thereafter, between the inlet communication portion 32 of the cover main body 31 and the inlet 12 of the existing public pit 3, between the outlet communication portion 33 of the cover main body 31 and the outlet 13 of the existing public ridge 3, and each Each of the space between the outer peripheral edge 42 of the packing seat 41 and the inclined surface 23 of the invert portion 21 of the existing public fence 3 is jointed with a caulking material 46.

  Then, after the cleaning tube 35 is fitted and bonded to the cleaning tube receiving port 34 of the cover body 31, the inner lid 37 is fitted to the cleaning port 36 of the cleaning tube 35.

  Thereafter, the lid 17 is fitted into the opening 15 of the existing public fence 3 to close the opening 15.

  Then, drainage is allowed to flow into the upstream pipe 4 to which the existing public fence 3 is connected, and the repair work of the existing public fence 3 is completed.

  As described above, according to the above-described embodiment, the invert portion 21 of the existing public fence 3 is often manually formed for each installation location of the existing public fence 3. For this reason, each inclined surface 23 of the invert part 21 of these existing public fences 3 has a different gradient for every installation place. Therefore, each of the packing seats 41 of the repair cover 1 that covers and repairs the invert portions 21 in the existing public fences 3 is formed of a flexible material.

  As a result, even when the cover body 31 of the repair cover 1 covers the drain groove 22 of the invert portion 21 of the existing public pit 3, even if the slope of the inclined surface 23 of the invert portion 21 varies. The flexibility of the packing seat 41 of the repair cover 1 allows the cover main body 31 to be mounted on the invert portion 21 with good water-stopping stability corresponding to the inclination of the inclined surfaces 23.

  Therefore, regardless of the slope of the inclined surface 23 of the invert portion 21, the cover body 31 can be stably installed on the invert portion 21 at the packing seat 41, and the waterproof main body can be secured to the invert portion 21 by the cover body 31. Can be easily done. Therefore, it is possible to provide the repair cover 1 having excellent water stop performance, and at the same time, the repair work of the existing public fence 3 can be easily and reliably performed by using the repair cover 1.

  Further, when the cleaning tube 35 is fitted and bonded to the cleaning tube receiving port 34 of the cover main body 31 with the cover main body 31 disposed in the existing public fence 3, the cleaning tube receiving port 34 of the cover main body 31 is moved upward. Therefore, inspection and cleaning inside the cover main body 31 can be easily performed even when earth and sand or water is accumulated to some extent outside the cover main body 31 as well as in the existing public fence 3.

  Further, by fitting the inner lid 37 to the cleaning port 36 of the cleaning tube 35 fitted to the cleaning tube receiving port 34 of the cover body 31, the cleaning tube 35 is closed by the inner lid 37. For this reason, even when earth, sand, water or the like enters the existing public fence 3 and outside the cover body 31, the earth, water, etc. can be prevented from entering the cleaning tube 35. Therefore, intrusion of earth and sand or water into the cover main body 31 can be prevented, and the cover main body 31 can function normally for a long time.

It is explanatory sectional drawing which shows the installation state of one Embodiment of the repair cover apparatus for existing public fences of this invention. It is explanatory sectional drawing which shows the installation state of the repair cover apparatus for existing public fences same as the above. It is an explanatory top view which shows the installation state of the repair cover apparatus for existing public fences same as the above. It is an explanatory top view which shows the state which attached the flange body to the cover main body of the repair cover apparatus for existing public fences same as the above. It is explanatory side view which shows the state which attached the flange body to the cover main body of the existing public fence repair cover apparatus same as the above. It is an explanatory top view which shows the cover main body of the repair cover apparatus for existing public fences same as the above. It is an explanatory top view which shows the flange body of the repair cover apparatus for existing public fences same as the above.

Explanation of symbols

1 Repair cover as a repair cover device for existing public fences 3 Existing public fences
12 Inlet
13 Outlet
21 Invert club
22 Drainage channel
23 Inclined surface
31 Cover body
32 Inlet communication part
33 Outlet communication part
34 Vacuum tube receptacle
35 Vacuum tube
37 Inner lid
41 Packing seat as flange body

Claims (2)

Buried in the ground with an invert portion having a substantially concave drainage groove and an inclined surface located on both sides of the drainage groove and inclined downward toward the drainage groove, an upstream inlet and a downstream outlet A repair cover device for an existing public fence that is installed in the existing public fence and repairs the existing public fence,
An inlet communicating portion that communicates with the inlet of the existing public fence in a state where the cleaning pipe receiving opening opened upward is provided in the existing public fence and the outlet of the existing public fence A cover main body that covers the drainage groove of the invert part of the existing public pit, each of the outlet communication parts communicating with the
An existing public fence, comprising: a flexible flange body provided on the cover body and mounted on the inclined surface of the invert portion of the existing public fence to cover the inclined surface of the invert section. Repair cover device. A cleaning tube that fits into the cleaning tube receptacle of the cover body in an existing public fence and extends the cleaning tube receptacle upward,
The repair cover device for an existing public fence according to claim 1, further comprising an inner lid that is fitted to an upper portion of the cleaning pipe within the existing public fence and closes the cleaning pipe.

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