JP2829373B2 - Pipe inner surface leakage prevention tool - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pipe inner surface water leakage preventing device for preventing water leakage from a pipe connecting portion when an opposed tube buried underground is eccentric.

[0002]

2. Description of the Related Art Conventionally, as a fitting for allowing flexibility of a pipe and preventing water leakage, for example, a fitting shown in FIG. 4 is known, which is provided on the outer surfaces of opposed pipes 101 and 102. This is a telescopic flexible tube to which a water leakage prevention fitting 104 abutting the water blocking material 103 is attached. Reference numeral 105 denotes a set bolt for connecting the pipes 101 and 102 to the water leakage prevention fitting 104 via the flanges 106 and 107, and is removed after the connection of the pipes by the telescopic flexible pipes.

[0003]

In the above-mentioned prior art, even if the pipes 101 and 102 are eccentric due to the fact that the pipes 101 and 102 are not adapted to the ground, the water leakage prevention fitting 104 follows the eccentricity. It is structured to be eccentric. However, since the water-stopping material 103 in contact with the outer surfaces of the pipes 101 and 102 does not separate from the outer surfaces of the pipes 101 and 102, water leakage from the pipes 101 and 102 is prevented. When it becomes, water stop material 103
Is separated from the outer surfaces of the tubes 101 and 102 (see FIG. 5).
There is a problem that water leaks from 1,102, and it is difficult to repair the water.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problem, and in the case where the pipe is eccentric with a certain degree of eccentricity, it is possible to easily carry out reinforcement and repair even if water leaks from the pipe. It is an object to provide tools.

[0005]

In order to achieve the above-mentioned object, in the pipe inner surface water leakage prevention device of the present invention, opposed pipes are provided.
The sealing material 5 is brought into contact with the outer peripheral surfaces of the bodies 1 and 2 to stop water
It has a water leakage prevention device 3 which enables the amount of eccentricity.
Water leakage prevention device 3 prevents water leakage due to eccentricity exceeding a certain level
Prevention of water leaks inside pipes when they no longer function
The stopper 6, which is a pipe inner surface water leakage preventing tool,
Connecting flanges 11 and 12 extending
Divided pieces 7a, 7b,...
And a packing 8 interposed between the joining flanges 11 and 12.
And fixed at both ends even in the inclined state.
A circular inclined cylinder 9 is formed, and the vertical piece
17 and a mounting flange 22 provided separately.
The eccentric two members are pressed by sandwiching
Note that the structure is such that the inner surfaces of the pipes 1 and 2 are waterproof.
Sign.

[0006]

[Function] Water leakage prevention with sealing material 5 in contact with outer surfaces of pipes 1 and 2
A stopper 3 is provided, and the opposed pipes 1, 2 are provided.
Each axis is eccentric more than a certain amount, and water leaks from the pipe.
In case of squeezing, the inclined cylinder 9 is configured as a pipe inner surface water leakage prevention tool.
Of the divided bodies 7a, 7b,.
Inserted from the manhole, each of the divided pieces 7a, 7b ...
Between the connecting flanges 11 and 12
The oblique cylinder 9 is formed inside. From this state, the vertical piece 17
A pressing force is applied across the sealing material 10 with the mounting flange 22.
First, the sealing material 10 is removed from the inclined cylinder 9 having both ends of a perfect circle.
To complete the sealing of the inner surfaces of the tubes 1 and 2
I do. For this reason, the inclined cylinder 9 is formed into the already eccentric tubes 1 and 2.
On the other hand, a further inclination or eccentricity can be maintained in a still water state.

[0007]

Embodiments of the present invention will be described below with reference to the drawings.

Reference numerals 1 and 2 denote pipes buried underground according to the present invention, and the pipes 1 and 2 are arranged to face each other. The water leakage prevention device 3 includes an inclined cylinder 4 and a sealing material 5 which is a water-stopping material. The sealing material 5 is attached to the outer surfaces of the tubes 1 and 2 in contact with each other. This prevents water leakage from the pipes 1 and 2 when the pipes 1 and 2 are decentered by a certain amount in the state of the ground.

An inner surface water leakage prevention device 6 of the present invention is attached to the inner surfaces of the tubes 1 and 2. This inner surface water leakage prevention device 6
Represents a plurality of divided pieces 7a, 7b, 7 in the direction of the tilt axis A.
c. . . Are bonded via a packing 8 as a waterproof material, and as shown in FIG. 2, an inclined cylinder 9 made of metal or synthetic resin formed so that an end face becomes a perfect circle,
And a sealing material 10 which is a water-stopping material that can be brought into contact with the inner surfaces of the pipe bodies 1 and 2.

As shown in FIGS. 2 and 3, the shape of the end face of the inner surface water leakage preventing device 6 is such that the divided piece 7
The joining flanges 11 and 12 of a and 7b are joined with nuts 16 by inserting bolts 15 into the respective bolt holes 13 and 14 and the like via the packing 8.

In the circumferential direction, the divided pieces 7a, 7b
A vertical piece 17 and a support piece 19 with a bolt hole 18 are attached to the edge near the end of the support piece 19, and a connection piece 20 is provided above the support piece 19. The sealing member 10, which is a waterproof material wider than the width of the supporting piece 19, is placed on the upper part of the connecting piece 20. Therefore, the mounting flange 22 with the bolt hole 21 is brought into contact with the divided pieces 7a and 7b, and the bolt 23 and the nut 24 are tightened through the bolt holes 22 and 18, so that the mounting flange 22 is separated from the divided pieces 7a and 7b.
b, whereby the upper part of the sealing material 10
It protrudes from the upper part by the tightening force of the vertical piece 17 and the mounting flange 22, and comes into contact with the inner surfaces of the tubular bodies 1 and 2.

As shown in FIG. 1, the water leakage prevention device 3 of the present embodiment having the above structure is provided with a water leakage prevention device 3 having an outer surface in contact with a sealing material 5 as a water blocking material. When water leaks from the pipes 1 and 2 due to a certain degree of eccentricity of the pipes 1 and 2 facing each other, a plurality of divided pieces 7a, 7b, 7c. . . Is inserted through manholes (not shown) of the tubes 1 and 2 as they are.

The inserted plurality of divided pieces 7a, 7b,
7c. . . Is a seal material 1 on the inner surfaces of the opposed pipes 1 and 2.
0 while being in contact with each other, each of the divided pieces 7a, 7b, 7c. . .
Are bonded via a packing 8.

This makes it possible to prevent water leakage from the pipes 1 and 2 with a simple operation, and to prevent water leakage attached to the outer surfaces of the pipes 1 and 2 by a certain degree of eccentricity of the pipes 1 and 2. Even when the preventive device 3 does not perform its function, the inner surface water leakage preventive device 6 of the pipe of the present embodiment has a plurality of divided pieces 7a, 7b,
7c. . . And the divided pieces 7a, 7
b, 7c. . . Is easily inserted into the inner surfaces of the tubes 1 and 2 through the manholes of the tubes 1 and 2 and is assembled there.

More effective water leakage prevention can be achieved by appropriately injecting a filler for preventing water leakage into the space formed by the water leakage prevention device 3 and the internal surface water leakage prevention device 6 during the assembly of the internal surface water leakage prevention device 6. Achieved.

Although the embodiments have been described with reference to the drawings, the specific configuration is not limited to the embodiments, and any changes or additions without departing from the scope of the present invention are included in the present invention. It is. According to the present invention, since the inner surface water leakage prevention device is attached to the eccentric pipe adapted to the ground at an inclination suitable for the state, there is a sufficient tolerance for further eccentricity.

[0017]

As described above, according to the present invention, the water leakage preventing device in which the sealing material 5 is in contact with the outer surfaces of the tubes 1 and 2 is provided.
3 are provided.
Each shaft center was eccentric more than a certain amount, and water leaked from the pipe
Occasionally, the inclined cylinder 9 which is a pipe inner surface water leakage prevention device is configured.
The plurality of divided pieces 7a, 7b.
Insert from the hole and connect the divided pieces 7a, 7b ...
Inclined circle with packing interposed between mating flanges 11 and 12
The cylinder 9 is formed inside. From this state, attach the vertical piece 17
A pressing force is applied across the sealing material 10 between the flanges 22,
The sealing material 10 is extended outward from the inclined cylinder 9 having a perfect circular end.
To complete the sealing of the inner surfaces of the tubes 1 and 2.
For this reason, the slanted cylinder 9 is moved with respect to the already eccentric pipes 1 and 2.
The effect of maintaining more inclination and eccentricity in the still water state
Fruit is obtained.

[0018]

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a main part of an embodiment of the present invention.

FIG. 2 is a right half arrow view in the X direction of FIG. 1;

FIG. 3 is an enlarged perspective view of a main part of the embodiment of the present invention.

FIG. 4 is a schematic view showing the movement of a conventional example.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Pipe body 2 Pipe body 3 Water leakage prevention tool 4 Perspective cylinder 5 Seal material 6 Inner surface water leakage prevention tool 7a, 7b, 7c ... Split piece 8 Packing 9 Inclined cylinder 10 Seal material 11 Joining flange 12 Joining flange 13, 14 Bolt hole 15 Bolt 16 Nut 17 Vertical piece 18 Bolt hole 19 Support piece 20 Connecting piece 21 Bolt hole 22 Mounting flange 23 Bolt 24 Nut

Claims (4)

(57) [Claims] 1. An outer peripheral surface of pipes 1 and 2 arranged opposite to each other.
And a certain amount of eccentricity is possible
With a leak prevention device 3 which has
Eccentricity prevents the water leakage prevention device 3 from fulfilling the water leakage prevention function
A pipe inner surface water leakage prevention device 6 used in the case of
This pipe inner surface water leakage prevention device is a joint flange that extends in the tilt axis direction.
Having the flanges 11 and 12 and
The split pieces 7a, 7b...
With packing 8 interposed between the flanges 11 and 12.
An inclined cylinder with both ends in a perfect circle even when inclined
9 and is provided separately from the vertical piece 17.
Sandwiching the sealing material 10 between the mounting flange 22
By pressing, the inner surfaces of both tubes 1, 2 that are eccentric
Water leakage prevention device that has a structure to stop water from leaking. 2. The pipe inner surface water leakage prevention device according to claim 1 , wherein the inclined cylinder 9 comprises at least three divided pieces 7a, 7b ,. 3. The pipe inner surface water leakage prevention device according to claim 1 , wherein the divided pieces 7a, 7b are made of metal or synthetic resin. 4. A pipe surface leakage prevention device, according to claim 1 which is adapted allowed to set injecting solid fillers for water leakage prevention in a space formed by the water leakage prevention member 3 and the inner surface leakage preventing device 6.