JP2001182144A - Repairable catch basin - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a repairable catch basin by which an existing public catch basin can be easily repaired. SOLUTION: An invert member 41 having a recessed arcuate section is placed in an invert part 37 of an existing public catch basin 31 embedded in the ground. A substantially cylindrical inflow side connecting body 51 is fitted in the inflow opening 33 of the existing public catch basin 31 and also fitted in the inflow fitted part 42 at one end of the invert member 41. The substantially cylindrical outflow side connecting body 61 is inserted in the outflow opening 34 of the existing public catch basin 31 and further, fitted to the outflow fitted part 43 of the other end of the invert member 41. A communication member 71 having a rising pipe 73 is fitted to the invert member 41 to connect the inflow opening 33 to the outflow opening 34. The inside of the repairable catch basin 11 can be cleaned and inspected from the rising pipe 73.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a repair pit for repairing an existing public pit buried underground.

[0002]

2. Description of the Related Art Conventionally, in an area where a public sewer system is laid, an existing public basin 1 is buried underground near a boundary between a residential land and a road. In addition, this existing public square 1
As shown in FIG. 9, a drain pipe 2 provided inside the house of each home is connected to a mounting pipe 3 provided on the road side.

[0003] Furthermore, the existing public basin 1 is mainly formed in a cylindrical shape with concrete having a large inner diameter of 450 mm or more, where the public sewerage system has been laid for a long time. After burying the basin body 6 in which the inlet 4 and the outlet 5 are formed in the ground,
The height adjuster 7 is piled up on the box body 6 to adjust the height to the ground surface, and mortar is poured into the box body 6 to form a groove-shaped invert portion 8 at the bottom of the box body 6. The inflow section 4 communicates the inflow port 4 with the outflow port 5.

For this reason, the existing public basin 1 is composed of
The height adjusters 7 are stacked in a multi-stage manner, and the mortar is usually water-tightly fixed to the box body 6 and the height adjusters 7 by using a mortar.

[0005] When the existing public basin 1 is used for a long period of time, the joints, the inlet 4 or the outlet 5 are separated due to the fluctuation of the ground and the like, and these joints are separated. Therefore, plant roots and rainwater will invade from the outside. Further, the invert portion 8 is deteriorated due to abrasion due to the flow of drainage. Therefore, it is necessary to repair them.

[0006]

However, in order to repair the existing public basin 1, the existing public basin 1, the drainage pipe 2 and the mounting pipe 3 are buried underground, respectively, and furthermore, due to housing conditions and the like. The existing public square 1 is often buried in a narrow place. Therefore, there is a problem that it is not easy to repair the existing public basin 1 particularly when concrete is hit on the ground surface.

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and an object of the present invention is to provide a repair pit which can easily repair an existing public pit.

[0008]

The repair basin according to claim 1 is installed in an existing public basin buried underground and provided with an upstream inlet, a downstream outlet, and an invert portion. A repair basin for repairing an existing public basin, comprising an inflow fitting portion and an outflow fitting portion formed at both ends in the axial direction, and on an invert portion in the existing public basin, An inverting member having a concave arc-shaped cross section disposed with the inflow fitting portion and the outflow fitting portion facing the inflow port and the outflow port, respectively, and an inflow fitting portion of the invert member which is opened at one end. A substantially cylindrical inflow-side connection including an inflow fitting portion to be fitted, and an inflow fitting portion that is opened at the other end portion facing the inflow fitting portion and that is fitted into the inflow port of the existing public box. A body and an outflow fitting of the invert member opened at one end thereof And a substantially cylindrical outflow side provided with an outflow fitting portion that is fitted into the outflow fitting portion, and an outflow opening insertion portion that is opened at the other end opposite to the outflow fitting portion and that is inserted into the outflow port of the existing public box. A connection body and a riser pipe extending upward, and are placed on the inverting member and engaged with the inverting member, and are associated with the inflow fitting portion and the outflow fitting portion, respectively. And a communication member for connecting the inflow port and the outflow port of the existing public basin.

In this configuration, an inverting member is arranged on the inverting portion in the existing public square, with the inflow fitting portion and the outflow fitting portion facing the inlet and the outlet of the existing public square, respectively. I do. Next, the inflow-side connector is disposed in the existing public basin, and the inlet fitting portion of the inflow-side connector is inserted into the inflow port of the existing public basin. The part is fitted to the in-flow fitting part of the inverting member. Furthermore, an outflow-side connector is disposed in the existing public basin, and an outlet fitting portion of the outflow-side connector is inserted into a downstream inflow port of the existing public basin, and the outflow-side connector of the outflow-side connector is fitted. The mating part is fitted to the outflow fitting part of the invert member. Then, while arranging the communication member in the existing public basin, placing the communication member on the invert member and fitting the communication member to the invert member, and communicating the inlet and the outlet of the existing public basin. The existing public squares will be repaired. Therefore, it is easier to repair the existing public basin than to replace it by excavating the existing public basin from the ground or to repair each joint part of the existing public basin in a buried state. Further, the riser of the communication member, which is provided in the existing public square and is fitted to the invert member, extends upward. For this reason,
The inside of each of the inverting member, the inflow side connection body and the outflow side connection body can be inspected and cleaned from the riser pipe.

According to a second aspect of the present invention, in the repair tub of the first aspect, one of the inflow-side connector and the outflow-side connector is formed integrally with the inverting member.

[0011] In this configuration, since one of the inflow-side connecting body and the outflow-side connecting body is integrally formed with the inverting member, the number of members required for repairing the existing public square is reduced. In addition, manufacturing costs are reduced, and inventory management is facilitated.

According to a third aspect of the present invention, there is provided the repair box according to the first or second aspect, wherein the outflow-side connecting member has a body, and the body is formed of a flexible member. Is what it is.

[0013] In this configuration, since the body portion of the outflow-side connection body is formed of a flexible member, for example, the mounting pipe is bent and connected to the outflow port of the existing public square. Even if there is, the outlet fitting portion of the outflow side connection body is bent, so that the outlet fitting portion can be fitted corresponding to the bent outlet of the existing public cell.

According to a fourth aspect of the present invention, there is provided a repairing tub according to any one of the first to third aspects, wherein the opening end of the outlet fitting portion of the outflow-side connecting member can protrude in the circumferential direction. A projection having flexibility is formed.

[0015] In this configuration, a flexible protrusion protruding along the circumferential direction is formed at the opening end of the outlet fitting portion of the outflow-side connector, so that the outlet of the existing public basin is formed. The outlet fitting portion of the outflow-side connector is more securely inserted into the outlet port, and the watertightness when the outlet fitting portion is inserted into the outlet is improved.

According to a fifth aspect of the present invention, there is provided the repair box according to any one of the first to fourth aspects, wherein a tapered portion along a circumferential direction is formed at an inner edge of the opening of the inlet-side insertion portion of the inflow-side connector. It has been formed.

In this configuration, since the tapered portion along the circumferential direction is formed at the inner edge of the opening of the inflow-portion insertion portion of the inflow-side connection body, the inflow-portion insertion portion of the inflow-side connection body is provided in the existing public. Irregularities at the insertion portion between the inner surface of the inlet and the inner surface of the inlet when inserted into the inlet of the box are reduced. For this reason, the resistance to the drainage flowing from the inlet to the inflow-side connecting body is reduced, and the drainage flowing out of the inlet is smoothly drained to the outlet.

According to a sixth aspect of the present invention, there is provided the repairing box according to any one of the first to fifth aspects, wherein the inverting member includes a pair of flange portions projecting outward from both sides in the axial direction. The communication member includes a pair of mounting flange portions that project outward from both sides in the axial direction and are mounted on each flange portion of the invert member in a state where the communication member is mounted on the invert member. It is equipped.

In this configuration, the flange member of the invert member is placed in the existing public pit by disposing the invert member in the invert portion of the existing public pit. Next, in this state, by placing the communication member on the inverting member, each mounting flange of the communication member is mounted on each flange of the inverting member.
For this reason, after placing each flange portion of the invar member in the existing public box, the mounting flange portion of the communication member is joined to each flange portion of the invert member, thereby joining the invert member and the communication member. And the stability of the existing public basin will be improved.

[0020]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The configuration of an embodiment of the present invention will be described below with reference to FIGS.

1 to 5, reference numeral 11 denotes a repair basin,
This repair basin 11 is, for example, a drain pipe 21 located inside each house.
And is installed in the existing public basin 31 which is an existing public basin buried in the ground connected to the mounting pipe 22 located on the road side,
This is to repair the existing public square 31.

The existing public box 31 has a box body 32 formed in concrete into a substantially cylindrical shape. An inlet 33 communicating with the drain pipe 21 is formed on the upstream side of the basin main body 32, and a downstream side of the basin main body 32 opposed to the inlet 33 has a diameter larger than that of the inlet 33. An outlet 34 having a large inner diameter and communicating with the mounting pipe 22 is formed with an opening.

On the box body 32, there is provided a height adjuster formed of concrete into a substantially cylindrical shape having the same diameter as the box body 32.
35 are water-tightly fixed in a state of being concentrically stacked using, for example, mortar as a bonding agent. And
On the upper side of this height adjuster 35, an existing public square 31
A cleaning port 36 for cleaning or inspecting the inside is opened, and a lid (not shown) formed in a substantially disk shape by casting or the like is detachably fitted to the cleaning port 36. .

Further, in the main body 32 of the existing public basin 31,
As shown in FIG. 2, mortar is poured into the mortar, and a groove-shaped inverting portion 37 communicating between the inlet 33 and the outlet 34 of the box body 32 is formed. Also, this invert section
On both sides in the axial direction of the 37, a pair of inclined portions 38 are formed, each of which is gradually inclined upward toward the side. Furthermore, the invert section 37 includes
A flowing water gradient is formed, which is gradually inclined downward from the inflow port 33 side of the 32 to the outflow port 34 side.

The repair box 11 is formed of, for example, a synthetic resin such as PVC, that is, polyvinyl chloride, and is formed by cutting a cylinder along the axial direction in a radial direction passing through the center axis of the cylinder and facing the cylinder. And an inverted invert member 41 having a substantially concave cross section. At both ends in the axial direction of the inverting member 41, an inflow fitting portion 42 and an outflow fitting portion 43 are formed to be enlarged in diameter, respectively. The inverting member 41 further includes an inflow fitting portion. It is formed in a tapered shape whose diameter gradually increases from 42 toward the outflow fitting portion 43. The inverting member 41 is connected to the existing public square.
The entrance 33 of this existing public basin 31
In addition, the inflow member 41 and the inflow / outflow fitting portion 43 of the inverting member 41 are placed in the inverting portion 37 of the existing public square 31 at the outflow port 34, respectively.

As shown in FIG. 4, a pair of substantially flat flanges 44 projecting outward are formed on both sides of the invert member 41 in the axial direction.

Further, the inverting member 41 is connected to an existing public square.
When it is placed on the inverting section 37 in the
The inflow-side connecting body 51 formed of VC, that is, a substantially cylindrical shape having a short cylindrical shape with a synthetic resin such as polyvinyl chloride is attached to the inverting member 41. At one end in the axial direction of the inflow-side connecting body 51, an inflow fitting portion 52 having an outer diameter dimension capable of fitting approximately half below the inflow fitting portion 42 of the invert member 41 is formed. The other end in the axial direction facing the inflow fitting portion 52 is provided with an existing public cell.
An inflow port insertion portion 53 having an outer diameter dimension capable of being inserted and bonded to the inflow port 33 of the 31 is formed with an opening.

A tapered portion 54 is formed at the inner edge of the opening of the inlet fitting portion 53. The tapered portion 54 gradually becomes thinner in the opening direction along the circumferential direction. In addition, the inlet connection
Reference numeral 51 denotes an inflow fitting portion of the invert member 41,
42, the inflow port insertion portion 53 is inserted and bonded in the drain pipe 21 connected to the inflow port 33 of the box body 32,
It is placed in the invert section 37 of the existing public square 31.

Further, the inverting member 41 is connected to the existing public square 31.
In the state of being placed in the inverting section 37, for example, P
An outflow-side connector 61 formed of VC, that is, a synthetic resin such as polyvinyl chloride, which is formed in a substantially cylindrical shape larger in diameter than the inflow-side connector 51 is attached to the inverting member 41. The outflow side connection body 61 is formed by the outflow fitting portion 43 of the invert member 41.
Outflow fitting part having an outer diameter dimension that can be fitted into substantially half of the bottom
62 is provided with an outflow-side connection main body 63 having an opening formed at one end in the axial direction, and at the other end in the axial direction of the outflow-side connection main body 63, a body 64 has a flexible member, for example, A substantially cylindrical bellows cylinder molded into a bellows shape with rubber etc.
One end in the axial direction of 65 is fitted and connected in a watertight state.

At the other end of the bellows cylinder 65 in the axial direction, a mounting pipe 22 connected to the outlet 34 of the cell body 32 is provided.
An outlet fitting portion 66 having an outer diameter dimension that can be fitted therein is formed with an opening. A projecting portion 67 is formed at the open end of the outlet fitting portion 66 so as to project radially along the circumferential direction of the open end. The protrusion 67 is formed of a flexible resin, for example, rubber.
When the outlet fitting portion 66 is inserted into the mounting tube 22 connected to the outlet 34 of the box body 32, the protrusion 67 is fitted to the outlet fitting portion 22 with respect to the mounting tube 22. 66 are formed so that they can be connected in a watertight manner.

Further, the outflow side connection member 61 is
Are fitted to the outflow / outlet fitting portion 43 of the inverting member 41, and further, the outlet fitting portion 66 is fitted in the mounting pipe 22 connected to the outlet 34 of the cell body 32. It is placed in the invert section 37 of the basin 31.

Further, an inverting member 41 is placed on the inverting portion 37 of the existing public box 31, and the inflow side connecting member 51 and the outflow side connecting member 61 are attached to the inverting member 41. The communication member 71 that fits with the invert member 41 by being placed on the existing public square 31
It is arranged in. The communication member 71 includes a communication member body 72 having a substantially arc-shaped cross section obtained by cutting the cylinder through the center axis of the cylinder and cutting along the axial direction in the radial direction facing the cylinder. A rising pipe 73 having an opening extending upward is formed substantially at the center of the upper surface. This riser pipe 73 has a length dimension that can be arranged in the existing public basin 31 when the communication member 71 is fitted to the invert member 41 arranged in the existing public basin 31. . Further, a cleaning port 74 for cleaning or checking the inside of the communication member 71 or the like is opened above the rising pipe 73. Further, an inner lid (not shown) is detachably fitted to the cleaning port 74 in order to prevent intrusion of earth and sand from the cleaning port 74.

Further, one end of the communication member main body 72 in the axial direction is fitted with a substantially upper half of the inflow fitting portion 52 of the inflow side connecting body 51 fitted to the inflow fitting portion 42 of the inverting member 41. The inflow communication portion 75 having a compatible inner diameter is formed in an expanded state. The other end of the communication member main body 72 facing the inflow communication portion 75 has an outflow fitting portion of the outflow side connection body 61 fitted to the outflow fitting portion 43 of the inverting member 41.
The outflow communication portion 76 having an inner diameter dimension that can be fitted to substantially the upper half of 62 is formed in an enlarged state. Like the invert member 41, the communication member 71 is formed in a tapered shape whose diameter gradually increases from the inflow communication portion 75 to the outflow communication portion.

As shown in FIG. 3, a pair of substantially flat mounting flanges 77 projecting outward are formed on both sides of the communication member main body 72 in the axial direction. The mounting flange portion 77 is formed at an inclination angle at which the mounting flange portion 77 is mounted on, or abuts, each flange portion 44 of the invert member 41 in a state where the communication member main body 72 is engaged with the invert member 41.

Further, in the communication member 71, the inverting member 41 is placed on the inverting portion 37 of the existing public box 31, and the inflow side connecting member 51 and the outflow side connecting member 61 are fitted to the inverting member 41, respectively. The inlet fitting portion 53 of the inflow-side connector 51 and the outlet fitting portion 66 of the outlet-side connector 61.
Are inserted into the inflow port 33 and the outflow port 34 of the existing public basin 31, respectively, and then the communicating members 71 are connected to the inverting member 41, the inflow-side connecting body 51, and the outflow-side connecting body 61, respectively.
Is engaged, the inflow port 33 and the outflow port 34 of the existing public basin 31 are communicated.

Next, the operation of the embodiment will be described.

The existing public yard 31 connected to the drainage pipe 21 and the attachment pipe 22 of each household may be cracked or deteriorated in the bonding of each joint portion due to long-term use. If there is a possibility that rainwater or plant roots may invade, or if invaded, first, the inflow of drainage flowing into the drain pipe 21 is stopped.

Next, a cover (not shown) is removed from the cleaning port 36 of the existing public basin 31, and the inside of the existing public basin 31 is cleaned. At this time, the invert section 37 of the existing public square 31 and the slope section
The cabin 38 and the inside of the basin 32 are particularly carefully cleaned, and then the inside of the existing public basin 31 is dried.

When the inside of the existing public box 31 is dried, the inverting member 41 is inserted into the existing public box 31 as shown in FIG. 42 and outflow fitting part 43 are respectively
The invert member 41 is placed on the invert portion 37 of the existing public square 31 in a state of facing the inflow port 33 and the outflow port.

At this time, each flange portion 44 of the inverting member 41 is placed on the inclined portion 38 of the existing public square 31.

Further, as shown in FIG. 5 (b), the inflow-side connecting member 51 is inserted into the existing public basin 31, and the inflow port insertion portion 53 of the inflow-side connecting member 51 is inserted into the existing public basin 31. The inflow fitting portion 52 of the inflow side connection body 51 is fitted and bonded to the inflow fitting portion 42 of the inverting member 41 while being fitted and fixed in the drainage pipe 21 connected to the inflow port 33.

Next, the outflow-side connecting body 61 is inserted into the existing public basin 31, and the outlet fitting portion 66 of the outflow-side connecting body 61 is connected to the mounting pipe 22 connected to the outflow port 34 of the existing public basin 31. Insert inside. At this time, the outlet fitting portion 66 of the outflow side connection body 61 is
The mounting pipe 22 connected to the outlet 34 of the existing public basin 31 is connected in a watertight manner at the protrusion 67. Further, in this state, the sewage fitting part 62 of the outflow side joint body 61 is fitted and bonded to the outflow fitting part 43 of the inverting member 41.

Then, as shown in FIG. 5C, the communication member body 72 of the communication member 71 is inserted into the existing public box 31 with the communication member body 72 at the head, and the communication member body 72 of the communication member 71 is inserted into the invert member 41. And the communication member body 72
The inflow communication portion 75 and the outflow communication portion 76 of the
The inflow fitting portion 52 of the inflow side connection body 51 fitted to the inflow fitting portion 42 and the outflow fitting portion 62 of the outflow side connection body 61 fitted to the outflow fitting portion 43 of the invert member 41. And are respectively bonded and bonded.

At this time, each mounting flange portion of the communication member 71
In order for the 77 to be mounted on each flange portion 44 of the inverting member 41, these mounting flange portions 77 are bonded to each flange portion 44 using an adhesive.

As a result, the drain pipe 21 connected to the inflow port 33 of the existing public basin 31 by the inflow side connecting body 51, the inverting member 41, the communicating member 71 and the outflow side connecting body 61, The attachment pipe 22 connected to the outflow port 34 is in communication.

Further, after fitting an inner cover (not shown) into the cleaning port 74 of the communication member 71, mortar or residual soil is injected into the existing public basin 31 outside the communication member 71, Inverted material 41 with surplus soil,
The inflow side connection body 51, the outflow side connection body 61, and the communication member main body 72 of the communication member 71 are embedded.

Then, a lid is fitted to the cleaning port 36 of the existing public basin 31, and thereafter, drainage flows into the drain pipe 21 connected to the inlet 33 of the existing public basin 31.

As described above, according to the above-described embodiment, the inverting member 41 is attached to the inverting section 37 of the existing public square 31.
Is placed, and the inflow port insertion portion 53 of the inflow side connection body 51 is inserted into the inflow port 33 of the existing public box 31, and the inflow side connection body 51 is inserted.
The inflow fitting part 52 of the inverting member 41
After that, the outlet fitting portion 66 of the outflow-side connector 61 is fitted into the outlet 34 of the existing public box 31, and the outflow fitting portion 62 of the outflow-side connector 61 is connected to the inverting member 41. And the communication member 71 is fitted to the invert member 41, and the inflow port 33 and the outflow port of the existing public basin 31 are fitted.
By communicating with 34, the existing public basin 31 can be repaired.

Therefore, compared to the case where the existing public basin 31 is excavated from the ground and replaced with a new existing public basin 31, or the case where each joint of the existing public basin 31 is repaired while being buried underground. Thus, the repair work of the existing public square 31 can be performed easily and at low cost.

When the communication member 71 disposed in the existing public box 31 is fitted to the inverting member 41, the cleaning port 74 extends upward at the rising pipe 73 of the communication member 71. Will be issued. For this reason, the existing public basin 31 was repaired with the repair basin 11,
After that, since the mortar and the remaining soil can be filled in the existing public basin 31 as well as outside the repair basin 11, the existing public basin 31 can be reliably repaired in the repair basin 11.

At this time, since the rising pipe 73 of the communication member 71 extends upward, the rising pipe 73 is connected to the inside of the repair tub 11 and the inlet 33 and the outlet 34 of the existing public tub 31. The inside of the mounting tube 22 can be easily inspected and cleaned.

Further, since the body portion 64 of the outflow-side connecting body 61 is formed of a flexible member, for example, as shown in FIG. twenty two
Even if is connected to this outlet 34 in a state where it is bent downward, the outlet insertion part 66 of the outlet side connection body 61 is connected to the outlet 34 of the existing public basin 31. The fitting can be reliably inserted into the mounting tube 22.

The flexible protrusion 67 projecting along the circumferential direction is formed at the opening end of the outlet fitting portion 66 of the outflow-side connecting body 61, so that the existing public box 31 is formed. The mounting pipe 22 connected to the outflow port 34 can be reliably connected in a watertight manner. For this reason, even if the mounting pipes 22 have slightly different inner diameter dimensions, the protrusion 67 has flexibility, so that the outlet fitting portion 66 of the sewage-side joint body 61 can be reliably connected to the mounting pipe 22. .

Further, by fitting an inner cover (not shown) into the cleaning port 74 of the communication member 71, it is possible to prevent water or earth and sand from entering the cleaning port 74.

Further, since the tapered portion 54 is formed at the inner edge of the opening of the inflow port insertion portion 53 of the inflow side connecting member 51, the inflow port insertion portion 53 is inserted into the inflow port 33 of the existing public basin 31. In this case, it is possible to reduce unevenness of the insertion portion between the inner surface of the inflow port insertion portion 53 and the inner surface of the inflow port 33. Therefore, the resistance to the drainage flowing from the inflow port 33 to the inflow side connecting member 51 can be reduced, and the drainage flowing out of the inflow port 33 can be smoothly drained to the outflow port.

Then, each flange portion of the inverting member 41
44, placed on the inclined portion 38 of the existing public square 31, further, by mounting each mounting flange portion 77 of the communication member 71 on each flange portion 44 of the invert member 41 using an adhesive, The work of bonding the communication member 71 to the invert member 41 can be facilitated, and the stability of the invert member 41 and the communication member 71 to the existing public square 31 can be improved.

In the above-described embodiment, the existing public square is
The existing public basin 31 is repaired without destroying or removing the 31.However, the present invention is not limited to such a configuration. Any configuration may be used as long as the configuration can communicate with.

Although the existing public basin 31 having the outlet 34 larger in diameter than the inlet 33 has been described, even if the inner diameter of the inlet 33 and the outlet 34 is the same, the inverting member 41 may be used. By changing the diameter of each of the inflow-side joined body 51, the outflow-side joined body 61, and the communication member 71, the existing public basin 31 can be repaired.

Further, the inverting member 41 is connected to the inverting section.
Although the configuration in which the inflow-side joined body 51 and the outflow-side joined body 61 are attached to the invert member 41 after being placed on the 37 has been described, one of the inflow-side joined body 51 and the outflow-side joined body 61 is connected to the invert member. It can be molded integrally with 41. In addition, with this configuration, the number of members required for repairing the existing public square 31 is reduced, so that the repair work when repairing the existing public square 31 can be simplified, and the manufacturing cost can be reduced. And inventory management can be facilitated.

[0060]

According to the repair tub of the first aspect, an inverting member is provided on the bottom plate of the existing public basin, and the inflow side connection body and the outflow side connection body are provided at the inlet and the outlet of the existing public basin. Each of them is inserted and fitted into the inflow fitting portion and the outflow fitting portion of the invert member, and further, the communication member is fitted on the invert member to communicate the inflow port and the outflow port of the existing public basin. By doing this, the existing public basin can be repaired without excavating it and without repairing each joint of the existing public basin in a buried state, so the existing public basin can be easily repaired. Can be.

According to the repair basin described in claim 2, claim 1 is provided.
In addition to the effect of the repair basin described, by forming one of the inflow-side connector and the outflow-side connector integrally with the invert member, the number of members required to repair the existing public basin is reduced. In addition, manufacturing costs can be reduced and inventory management can be facilitated.

According to the repair basin described in claim 3, claim 1
Or, in addition to the effect of the repair basin described in 2 above, for example, even when the attachment pipe is bent and connected to the outlet of the existing public basin, the body portion of the outflow side connection body has flexibility. Since it is formed of a member having the outlet, the outlet fitting portion of the outflow-side connector can be securely inserted into the outlet of the existing public square.

According to the repair basin described in claim 4, claim 1 is provided.
In addition to the effects of the repair basin described in any one of (1) to (3), the projecting portion having a flexibility and projecting along the circumferential direction is formed at the opening end of the outlet fitting portion of the outflow-side connecting body. The outlet fitting portion of the outflow-side connector can be more securely inserted into the outlet of the basin, and the watertightness when the outlet fitting portion is inserted into the outlet can be improved.

According to the repair basin described in claim 5, according to claim 1,
In addition to the effect of the repair basin described in any one of the above-described items 4, the taper portion is formed on the inner edge of the opening of the inlet fitting portion, so that the inlet fitting portion when the inlet fitting portion is fitted to the inlet. The unevenness of the fitting part between the inner surface of the part and the inner surface of the inflow port is reduced, so that the resistance to drainage flowing from the inflow port to the inflow side connector can be reduced, and the drainage flowing out of the inflow port to the outflow port smoothly. Can drain.

According to the repair basin described in claim 6, claim 1 is provided.
In addition to the effects of the repair basin described in any one of (5) to (5), after placing each flange portion of the invar member in the existing public square, joining the mounting flange portion of the communication member to each flange portion of the invert member. Accordingly, the joining work between the invert member and the communication member can be facilitated, and the stability of each of the invert member and the communication member with respect to the existing public square can be improved.

[Brief description of the drawings]

FIG. 1 is a sectional view showing an installation state of an embodiment of a repair basin of the present invention.

FIG. 2 is a cross-sectional view showing an installation state of the repair basin.

FIG. 3 is a top view showing an installation state of the repair tub.

FIG. 4 is a plan view showing an invert member of the repair basin.

FIG. 5 is a cross-sectional view showing a process of installing the repair basin according to the first embodiment.
(A) Cross-sectional view showing a state in which an inverting member is arranged in an existing public square (b) Cross-sectional view showing a state in which an inflow-side connecting body and an outflow-side connecting body are attached to an inverting member (c)
Sectional view showing a state where an existing public basin has been repaired with a repair basin

FIG. 6 is a sectional view showing another installation state of the repair tub.

FIG. 7 is a sectional view showing a conventional existing public square.

FIG. 8 is a sectional view showing a part of the existing public square.

FIG. 9 is a sectional view showing the existing public square.

[Explanation of symbols]

 11 Repair basin 31 Existing public basin 33 Inlet 34 Outlet 37 Invert part 41 Invert member 42 Inlet fitting part 43 Inlet fitting part 44 Flange part 51 Inlet side connecting body 52 Inflow fitting part 53 Inlet fitting part 54 Taper part 61 Outflow side connection body 62 Outflow fitting part 64 Body part 66 Outlet fitting part 67 Protrusion 71 Communication member 73 Rise pipe 77 Mounting flange

Claims (6)

[Claims] 1. A repair tub buried in the ground and provided in an existing public basin having an upstream inlet, a downstream outlet, and an invert portion, for repairing the existing public basin. And an inflow / outflow fitting portion formed at each of both ends in the direction, on the invert portion in the existing public square, and at the inflow port and the outflow port, respectively. And an inverting member having a concave arc-shaped cross-section disposed so as to face the portion and the outflow fitting portion, an inflow fitting portion opened at one end and fitted into the inflow fitting portion of the invert member, and this inflow fitting A substantially cylindrical inflow-side connector having an inlet insertion portion which is opened at the other end opposite to the joining portion and which is inserted into the inlet of the existing public box, and which is open at one end and is covered with the inverting member; The outflow fitting portion fitted to the outflow fitting portion, and the outflow fitting portion A substantially cylindrical outflow-side connector having an outlet fitting portion that is opened at the other end portion facing the outlet fitting portion and that is fitted into the outlet of the existing public box, and is extended upward; It has a riser pipe, is placed on the inverting member and is engaged with the inverting member, and is engaged with the inflow fitting portion and the outflow fitting portion, respectively. A repair basin comprising a communication member for communicating with an outlet. 2. The repair basin according to claim 1, wherein one of the inflow side connection body and the outflow side connection body is formed integrally with the invert member. 3. The repair basin according to claim 1, wherein the outflow side connection body has a body portion, and the body portion is formed of a flexible member. 4. A flexible projection projecting along the circumferential direction at an open end of the outlet fitting portion of the outflow-side connector. The repair basin described in any of them. 5. The repair basin according to claim 1, wherein a tapered portion is formed along the circumferential direction at an inner edge of the opening of the inlet fitting portion of the inflow-side connector. . 6. The inverting member includes a pair of flange portions protruding outward from both sides in the axial direction, and the communication member projects outward from both sides in the axial direction and connects the communication member to the flange. The repair basin according to any one of claims 1 to 5, further comprising a pair of mounting flange portions that are mounted on each flange portion of the invert member while being mounted on the invert member.