JP2017101434A - Method for burying unused lateral, and closing plate with check valve for use in the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To infill a filler into an unused lateral by using a closing plate.SOLUTION: A method for burying an unused lateral includes the steps of: closing a connection between a main pipe 1 and a lateral 2 with a closing plate 4 with a check valve 6; coupling a supply hose 8 to an end connection 7 of the closing plate 4; and supplying a filler into the lateral 2 from the side of the main pipe 1. In this case, the action of the check valve 6 prevents the backflow of the filler to the side of the main pipe 1 to the utmost.SELECTED DRAWING: Figure 7

Description

  The present invention relates to a method for closing an inside of a mounting pipe which is connected to a main pipe and is not used with a filler such as concrete, and a closing tool therefor.

  The attachment pipe filling device described in Patent Document 1 below has a filler leakage prevention means for blocking the connection portion between the main pipe and the attachment pipe and preventing the filler from leaking out of the attachment pipe. And in the case of filling, it has an attachment pipe inside air exhaust means for exhausting the gas in an attachment pipe from the upper part of an attachment pipe, sealing the inside of an attachment pipe with a special balloon. Furthermore, after the filling material is filled, an attachment tube closing means for closing with the attachment tube opening closing material is provided.

  Further, the mounting tube closing method and the mounting tube closing device described in Patent Document 2 are expanded by a cylindrical main body and a pair of rubber expansion sleeves provided on both sides of the outer periphery of the main body in the length direction. Constructs the diameter. A filler supply hole is provided in the center of the main body 21 in the length direction. Moreover, the injection | pouring holding | maintenance part is formed by winding the metal thin plate 41 in a cylindrical roll shape. The injection holding part is mounted on the outer periphery of the expansion sleeve to constitute a closing device.

Japanese Patent No. 4652471 JP2015-98689A

The attachment pipe filling device described in Patent Document 1 seals the connecting portion between the main pipe and the attachment pipe with a special balloon and fills the attachment pipe from the ground into the attachment pipe. However, in this method and apparatus, when the mounting pipe is already embedded and leveled, there are often no openings for filling the mounting pipe with concrete.
Next, the closing device described in the cited document 2 forms an annular groove between a pair of expansion sleeves, and fills the inside of the attachment tube with the filler from there. In this case, the filling material in the mounting pipe leaks into the sewage main pipe, and there is a disadvantage that cleaning is extremely troublesome.
Therefore, an object of the present invention is to provide an apparatus that can fill a filling material in the attachment tube even when there is no open end of the attachment tube, and that the filled filler does not easily flow back into the main tube.

According to the first aspect of the present invention, the opening (3) of the connecting portion between the main pipe (1) and the mounting pipe (2) is closed by the closing plate (4) and communicated with the mounting pipe (2). Attaching the connection port (7) with a check valve (6) to the closing plate (4);
Connecting a supply hose (8) to the connection port (7), and supplying a filler from the main pipe (1) side into the mounting pipe (2);
Next, the supply hose (8) is disconnected from the connection port (7), and the check valve (6) is held in the attachment pipe (2), so that the filler (16 ) Is a method of embedding a non-use mounting pipe having a step of preventing as much as possible the back flow of the pipe to the main pipe (1) side.

The invention according to claim 2 is the method of burying the unused mounting pipe according to claim 1,
The closing plate (4) is formed in an arc shape whose cross section is aligned with the inner periphery of the main pipe (1), and the connection port (7) with the check valve (6) is arranged at the center thereof,
Cover both sides of the closing plate (4) with an uncured resin material (5), attach them to the outer periphery of the repair machine, and expand the repair machine in the radial direction at the position of the opening (3). The resin material (5) is cured,
It is an embedding method of the unused attachment pipe which has the process of connecting the said obstruction board (4) to the said opening (3) with the connection port (7) with a non-return valve (6).

The invention according to claim 3 is the method of burying the unused mounting pipe according to claim 1 or 2,
An air vent tube (9) having a diameter smaller than that of the hose (8) is inserted into the supply hose (8), and the front end side of the air vent tube (9) is connected to the connection port (7) and the check valve (6). An unused mounting pipe that is inserted into the mounting pipe (2) through the mounting pipe (2) and fills the mounting pipe (2) with the filler (16) while excluding air inside the mounting pipe (2) to the outside. It is a burial method.

The invention according to claim 4 is a closing plate (7) with a check valve (6) used in the method for burying the unused mounting pipe according to any one of claims 1 to 3.
A connecting port (7) is passed through the central portion of the closing plate (4), a flexible auxiliary hose (10) is attached to the outside of the connecting plate (4), and a flat rubber cylinder is attached to the tip of the hose (10). The check valve (6) is arranged,
The check valve (6) is normally urged so as to flatten the cylinder, and when the filler flows in, the rubber cylinder expands outward in the radial direction by the pressing force. It is the obstruction board with a non-return valve comprised so that it may return to flatness by the stop of the inflow of.

The invention according to claim 5 is the closing plate with a check valve according to claim 4,
The check valve (6) is formed of a cylinder in which opposite edges of two rubber plates are joined to each other, and the opening edge of the cylinder is joined to the auxiliary hose (10). It is a board.

According to the first aspect of the present invention, the opening (3) of the connecting portion between the main pipe (1) and the mounting pipe (2) is closed by the closing plate (4), and the closing plate (4) is non-returned. Attaching the connection port (7) with the valve (6);
Connect the supply hose (8) to the connection port (7), supply the filler from the main pipe side (1) into the mounting tube (2), then remove it from the connection port (7) and check The valve (6) is held in the mounting pipe (2).
Therefore, it is possible to prevent the filler in the mounting pipe (2) from flowing back to the main pipe (1) as much as possible, and the non-use mounting pipe can be buried quickly and easily.

As in the invention described in claim 2, in the above configuration, the cross section of the closing plate (4) is formed in an arc shape that matches the inner periphery of the main pipe (1), and a check valve (6) is formed at the center thereof. The attached connection port (7) is arranged, the uncured resin material (5) is coated on both sides of the closing plate (4), and these are attached to the outer periphery of the repair machine, and the opening (3) The repair machine is expanded in the radial direction at the position, the resin material (5) is cured, and the closing plate (4) is connected to the opening (3) together with the connection port (7) with the check valve (6). If a process is provided,
By hardening the resin material (5), the opening (3) of the mounting pipe (2) is closed, the connection port (7) of the filler (16) is installed, and the check valve (6) is mounted. And can be performed reliably. Therefore, it is possible to quickly and easily perform the burying work of the unused mounting pipe.

As in the third aspect of the present invention, in the above configuration, the air vent tube (9) is inserted into the supply hose (8), and the tip end side is connected to the connection port (7) and the check valve (6). When the filler is filled in the mounting tube (2) while excluding the air in the mounting tube (2) to the outside through the mounting tube (2),
Even when an air reservoir exists in the mounting pipe (2), the inside of the unused mounting pipe can be closed by supplying the filler (16) to the inside while degassing the air. At the same time, after the filling material (16) is filled, the air vent tube (9) can be pulled out from the connection port (7) with the check valve (6), and at that time, by the action of the check valve (6), It is possible to prevent the filler (16) in the mounting pipe (2) from flowing backward to the main pipe (1) as much as possible.

As in the invention described in claim 4, the connection plate (7), the auxiliary hose (10), and the check valve (6) made of a flat cylindrical body are arranged on the closing plate (4), and vice versa. The stop valve (6) is normally energized as if the cylinder was crushed flat in the diametrical direction, and when the filler flows in, the cylinder expands outward in the radial direction by the pressing force. When it is configured to return to flat when the inflow stops,
A highly effective closing plate (4) with a check valve (6) can be provided at a low cost with an extremely simple structure. At the same time, when the filling material (16) is filled in the mounting pipe (2), it can be supplied quickly.

According to a fifth aspect of the present invention, in the above configuration, the check valve (6) joins both opposing edges of the two rubber plates to form a cylinder, and the opening edge of the cylinder is an auxiliary hose (10 ).
Therefore, the blocking plate (4) with the check valve (6) is provided at a lower cost, and the filler (16) has a higher check effect.

The assembly explanatory drawing of the obstruction board with a check valve of the present invention. The exploded view of the connection port 7, the auxiliary hose 10, and the non-return valve 6 attached to the obstruction board 4. FIG. (A) is the perspective view which shows the state which assembled the connection port 7, the auxiliary hose 10, and the non-return valve 6, (B) is a BB arrow line view of (A), (C) is the state at the time of concrete filling. FIG. FIG. 6 is a partial enlarged cross-sectional view showing a state in which the check plate with a check valve according to the present invention is attached to the opening 3 of the attachment pipe 2 and the main pipe 1 using the repair machine, and is a cross-sectional view taken along arrows IV-IV in FIG. Figure. In the same figure, it is the perspective explanatory drawing which shows the state which attached the obstruction board with the non-return valve by the repair machine which is not shown in figure, and joins the obstruction board 4 to the connection part of the attachment pipe 2 and the main pipe 1. FIG. Sectional drawing of the state after hardening the resin material 5 with the repair machine which is not shown in figure. FIG. 3 is an explanatory diagram in which a filler 16 is filled into the mounting pipe 2 via an injector 12 and a supply hose 8 after the closing plate 4 is joined. Explanatory drawing (A) which shows the process of inject | pouring the filler 16 into the attachment pipe 2 via the obstruction board 4, and explanatory drawing (B) which shows the state after the injection | pouring.

First, the structure of the closing plate 4 used in the method of the present invention will be described.
The closing plate 4 used in the present invention has a curved surface that matches the inner peripheral surface of the main pipe 1 as shown in FIGS. As shown in FIG. 1, a hole is provided in the central portion of the closing plate 4, and a connection port 7 with a check valve 6 is attached to the hole. A pair of sheet-like resin materials 5 are arranged on both surfaces of the closing plate 4. The closing plate 4 is formed to be approximately the same as the size of the opening 3 of the connecting portion between the main pipe 1 and the mounting pipe 2 or larger than that as shown in FIG.

A mounting opening 13 is provided in the resin material 5 at a position aligned with the hole of the closing plate 4. The holes of the blocking plate 4 and the attachment ports 13 of the pair of resin materials 5 are aligned, and the pair of resin materials 5 are attached to both surfaces of the blocking plate 4.
As an example, the resin material 5 may be a sheet-like glass fiber material impregnated with a photocuring agent or a thermosetting agent.

The check valve 6 and the connection port 7 are joined to each other via an auxiliary hose 10 as shown in FIG. One end of the auxiliary hose 10 is fitted into the connection port 7, and a check valve 6 made of a pair of rubber plates is joined to the upper end of the auxiliary hose 10. In this example, the bonding method is performed using the adhesive 20, but the bonding may be performed by other methods such as fusion.
At this time, the pair of rubber plates are joined at the edges by the adhesive 20 provided at both edges in the width direction of the check valve 6, and the check valve 6 is assisted by the adhesive 20 provided at the lower edge. Joined to the upper edge of the hose 10. In this way, the connection port 7 having the check valve 6 is formed.
As shown in FIGS. 3A and 3B, the check valve 6 in this example closes the end of the auxiliary hose 10 so that the pair of rubber plates are in close contact with each other. When the filler 16 is injected from the connection port 7, the check valve 6 is opened by the filling pressure as shown in FIG.

In this example, one outer edge of the connection port 7 is provided with a small outer flange, and the outer flange of the connection port 7 is joined to the hole edge of the closing plate 4 as shown in FIGS. .
Then, the closing plate 4 completes a resin material-integrated closing plate 4 having a check valve via a pair of resin materials 5.

(Mounting method of the closing plate 4 to the mounting tube 2)
FIG. 4 is a cross-sectional view of the main part showing a state in which the closing plate 4 with the check valve 6 of the present invention is joined to the connecting portion between the main pipe 1 and the mounting pipe 2 via the repairing machine 11. 5 is a cross-sectional view taken along line IV-IV in FIG. 5 (in FIG. 5, a plane perpendicular to the axis O of the main pipe 1 is taken as a cross section). FIG. 5 is an explanatory perspective view of the repairing machine 11 in an expanded state in which the resin material 5 is in close contact with the inner surface of the main pipe 1.

As shown in FIGS. 4 and 5, the resin material-integrated closing plate 4 with the check valve 6 as described above is attached to the outer periphery of the repair machine 11, and the repair machine 11 is caused to travel in the main pipe 1. And move to the position of the unused mounting tube 2. At this time, it is preferable to check the position using the self-propelled camera 14.
At that position, the repair machine 11 is expanded to bring the closing plate 4 and the resin material 5 into close contact with the inner surface of the main pipe 1. As an example, the UV lamp is turned on in the repair machine 11, the resin material 5 is photocured, and the closing plate 4 is joined to the inner surface of the main pipe 1. At this time, the check valve 6 of the connection port 7 is attached so as to be inserted into the attachment pipe 2 as shown in FIG.
Instead of the above photocuring method, depending on the type of the impregnating curing agent, it can be thermally cured with a heater or the like.
After the resin material 5 is cured, the repair machine is taken out from the main pipe 1.

(Filling method of filler 16)
FIG. 7 is an explanatory diagram of a method of filling the attachment tube 2 with the filler 16.
In this example, a supply hose 8 is attached to the injector 12, and a sealing material 17 is connected to the tip of the supply hose 8. Therefore, the pressing link mechanism 19 is rotated upward, the sealing material 17 is pressed against the closing plate 4, and the tip of the supply hose 8 is connected to the connection port 7 of the closing plate 4. Next, the air vent tube 9 is inserted into the supply hose 8, and the tip thereof is inserted into the attachment tube 2 through the auxiliary hose 10 and the check valve 6.
Next, the filler 16 is supplied to the inside of the supply hose 8 by the pressure feed pump 18 while the air present at the tip of the attachment pipe 2 is sucked by the air vent tube 9. A filler 16 made of cement such as concrete or mortar is used.
Then, as shown in FIG. 3C, the check valve 6 opens radially outward by the pressing force of the filler 16, and the filler 16 is supplied into the mounting pipe 2. This state is shown in FIG.

After the filler 16 is sufficiently supplied into the mounting pipe 2, the pumping pump 18 shown in FIG. 7 is stopped and the air vent tube 9 is pulled out. At this time, the check valve 6 is closed as shown in FIG. Next, the pressing link mechanism 19 is lowered, and the tip of the supply hose 8 is separated from the closing plate 4.
When the air vent tube 9 is pulled out from the check valve 6, a small amount of the filler 16 falls into the main pipe 1. A small amount of the filler 16 that has fallen is removed, and the work is completed after the filler 16 is cured. At this time, the closing plate 4, the check valve 6, the connection port 7, and the auxiliary hose 10 are embedded in the mounting pipe 2 with the filler 16 as shown in FIG.

The check valve is connected to the connection port 7 via an auxiliary hose. The check valve and the auxiliary hose can be integrated. Further, the connection port 7 may be provided so as to be rotatable around the center of the hole of the closing plate 4. In that case, the check valve can be directed in the direction in which the mounting pipe is laid.
The closing plate 4 is made of, for example, a resin material or a rubber material. For example, the blocking plate 4 may be formed of a divided body that is halved on the diameter line of the hole as a configuration other than that illustrated in the present invention. The check valve 6 may be replaced with a material other than a rubber material, such as using a resin material.
Furthermore, it is preferable to use the filling device of the embodiment as a filling device for the filler 16, but it is not limited thereto.

  The burying method of a non-use attachment pipe of the present invention and the check board with a check valve used therefor can be applied to a sewage treatment facility of a general household or business establishment.

DESCRIPTION OF SYMBOLS 1 Main pipe 2 Mounting pipe 3 Opening 4 Blocking plate 5 Resin material 6 Check valve 7 Connection port 8 Supply hose 9 Air vent tube 10 Auxiliary hose

DESCRIPTION OF SYMBOLS 11 Repair machine 12 Injection machine 13 Mounting port 14 Camera 15 Pump 16 Filler 17 Sealing material 18 Pumping pump 19 Pressing link mechanism 20 Adhesive

Claims (5)

The opening (3) of the connecting portion between the main pipe (1) and the mounting pipe (2) is closed with the closing plate (4) and communicated with the mounting pipe (2) to the closing plate (4). Attaching the connection port (7) with the check valve (6);
Connecting a supply hose (8) to the connection port (7), and supplying a filler from the main pipe (1) side into the mounting pipe (2);
Next, the supply hose (8) is disconnected from the connection port (7), and the check valve (6) is held in the attachment pipe (2), so that the filler (16 ) Is prevented from flowing back to the main pipe (1) side as much as possible. In the embedding method of the unused attachment pipe according to claim 1,
The closing plate (4) is formed in an arc shape whose cross section is aligned with the inner periphery of the main pipe (1), and the connection port (7) with the check valve (6) is arranged at the center thereof,
Cover both sides of the closing plate (4) with an uncured resin material (5), attach them to the outer periphery of the repair machine, and expand the repair machine in the radial direction at the position of the opening (3). The resin material (5) is cured,
A method of embedding a non-use attachment pipe, comprising a step of connecting the closing plate (4) to the opening (3) together with a connection port (7) with a check valve (6). In the embedding method of the unused mounting pipe according to claim 1 or 2,
An air vent tube (9) having a diameter smaller than that of the hose (8) is inserted into the supply hose (8), and the front end side of the air vent tube (9) is connected to the connection port (7) and the check valve (6). An unused mounting pipe that is inserted into the mounting pipe (2) through the mounting pipe (2) and fills the mounting pipe (2) with the filler (16) while excluding air inside the mounting pipe (2) to the outside. Burial method. A blocking plate (7) with a check valve (6) used in the method for burying an unused mounting pipe according to any one of claims 1 to 3,
A connection port (7) is penetrated through the central portion of the closing plate (4), a flexible auxiliary hose (10) is attached to the outside thereof, and a flat cylinder is formed at the tip of the hose (10). The check valve (6) is arranged,
The check valve (6) is normally urged so as to flatten the cylinder, and when the filler flows in, the cylinder expands radially outward by the pressing force. A blocking plate with a check valve configured to return to a flat state when the inflow stops. In the obstruction board with a check valve according to claim 4,
The check valve (6) is formed of a cylinder in which opposite edges of two rubber plates are joined to each other, and the opening edge of the cylinder is joined to the auxiliary hose (10). Board.

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