JP2575025Y2 - Pipe end processing support - 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 end treatment support used for closing a pipe end when filling a gap between double pipes with a filling material.

[0002]

2. Description of the Related Art Conventionally, in order to fill a gap between double pipes with a filling material such as mortar, a smoother 46 is inserted into a gap between an inner pipe 37 and an outer pipe 38 as shown in FIG. A sand bag 44 is inserted into the gap between the inner pipe 3 and the outer pipe 38 so that the inner pipe 3
7 is supported, and the front part of the sand-containing bag 44 is closed and supported by a mortar 45.

After the hardening mortar 45 is hardened, mortar or the like is filled from the injection pipe 33 and the air bleeding pipe 34
Is to discharge air from. Also, although not shown, the pipe end of the double pipe is partitioned by an inner mold frame and an outer mold frame, and a resin mortar or the like is filled between the inner mold frame and the outer mold frame to be cured and closed as an elastic body. And there is something to support.

[0004]

The above-mentioned conventional support for filling the filling material of double pipes is difficult to construct, requires specialized skills, and requires more than 24 hours for curing, which is time consuming. .

The present invention has been made in view of the above problems, and has as its technical object to provide a pipe end treatment support for filling a double-pipe filling material which can be easily constructed and used in a short time.

[0006]

SUMMARY OF THE INVENTION An annular hose support ring 1 is provided.
An inner annular hose 18 having an annular elasticity is fitted inside the hose support ring 1, and an outer annular hose 19 having an annular elasticity is fitted outside the hose support ring 1.
The inner annular hose 18 and the outer annular hose 1
9, a supply / discharge hose 25 is connected to the stopper 9, which protrudes from the front and rear portions around the hose support ring 1 to the front and rear sides of the inner annular hose 18 and the front and rear sides of the outer annular hose 19. The outer surface of the inner tube 37 and the outer tube 3 move forward and backward in the diameter direction of the hose support ring 1 at the front of the hose support ring 1.
8, a positioning tool 11 for abutting the inner surface of the hose support 8 and fixing the hose support ring 1 was provided to provide a pipe end processing support.

[0007]

According to the present invention, as shown in FIG. 5, an injection pipe 33 and an air release pipe 34 are mounted such that their ends open into an outer pipe 38. The injection pipe 33 and the air release pipe 34
The pipe end processing support is inserted into a gap between the ends of the double pipe composed of the outer pipe 38 and the inner pipe 37 in front of the outer pipe 38 having the opening.

The positioning tool 11 shown in FIGS.
Is advanced in the diameter direction of the hose support ring 1 to abut the outer surface of the inner tube 37 and the inner surface of the outer tube 38 to fix the hose support ring 1. Next, fluid is press-fitted into the inner annular hose 18 and the outer annular hose 19 using the supply / discharge hose 25.

Then, the inner annular hose 18 and the outer annular hose 19 expand and are pressed against the outer surface of the hose support ring 1 and the outer surface of the inner tube 37 and the inner surface of the outer tube 38, and the outer tube 38 and the inner tube 37
The inner annular hose 18 and the outer annular hose 19 are closed by an inner pipe 37 and an outer pipe 38.
It is fixed by pressing against the inner and outer surfaces of the.

Next, a filling material such as mortar and air mortar is injected into the gap between the double pipes of the outer pipe 38 and the inner pipe 37 from the injection pipe 33, and the internal air is discharged from the air vent pipe 34. The gap between the double tubes is filled with filling material.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. 1 to 6 are views for explaining one embodiment of the present invention.

In this embodiment, an annular hose support ring 1 having a diameter of 1000 mm is formed of a belt-shaped steel plate having a thickness of 2.3 mm.
The inner annular hose 18 having an annular elasticity is fitted inside the hose support ring 1, and the outer annular hose 1 having an annular elasticity is fitted outside the hose support ring 1.
9 is externally fitted.

The inner annular hose 18 and the outer annular hose 19 are obtained by cutting a hose made of soft vinyl chloride having an outer diameter of 50 mm and an inner diameter of 40 mm into a length to be formed into an annular body.
The two end portions 20 are formed by heat welding to form an annular shape. On the outer surface, a number of longitudinal stripes 21 are provided, and further, a supply / discharge hose 25 is connected. ,
The supply / discharge hose 25 is provided with a coupler 26.

From the front and rear portions around the hose support ring 1,
As shown in FIG. 1 to FIG.
Are provided on the front and rear sides of the outer annular hose 19 and the front and rear sides of the outer annular hose 19.
A large number of them are provided with a width of 40 mm and a projection length of 20 mm, integrated with the hose support ring 1 and with a gap of 40 mm.

Positioning tools 11 are provided at four places at equal intervals before and after the hose support ring 1. The positioning tool 11 is formed as follows. That is, as shown in FIG. 1 to FIG.
The positioning mounting plate 6 is mounted on the front of the mounting rod 6. The positioning mounting plate 6 is fixedly inserted into the mounting hole 7 by inserting a screw rod 12, and a cap nut 13 is screwed into both ends of the screw rod 12. The contact fitting 14 is rotatably fitted to the nut 13.

The positioning tool 11 rotates the cap nuts 13 so that the contact fitting 14 advances and retreats in the diametrical direction of the hose support ring 1 so that the outer surface of the inner pipe 37 and the outer pipe 38 can be moved. The hose support ring 1 comes into contact with the inner surface and is fixed at a predetermined position.

The hose support ring 1 is provided with four hose fixing bands 30 made of soft vinyl chloride for fixing the inner annular hose 18 and the outer annular hose 19 at substantially equal intervals.

Next, an experimental example of the present invention will be described. In this experimental example, as shown in FIG. 6, an inner tube 37 having an outer diameter of 914 mm was inserted into an outer tube 38 having an inner diameter of 1097 mm.
And the outer tube 38 has a gap of 52 mm on the lower side and 13 mm on the upper side.
2 mm, it is eccentric to form a double pipe, and an inner annular hose 18 having an outer diameter of 60 mm is provided in a gap at one end of the double pipe.
And a pipe end processing support fitted with an outer annular hose 19, and the position is determined by the positioning tool 11, and wooden wedges are driven into four places around the gap between the outer ends of the double pipe to drive the pipe end. The pressure in the gap between the double pipes on the processing support prevents the pipe end processing support from moving, and
The experiment was performed with the gap at the other end of the double tube also sealed.

The reason why the experimental example uses the inner annular hose 18 and the outer annular hose 19 having an outer diameter of 60 mm is that the double pipe is eccentric and the gap between the inner pipe 37 and the outer pipe 38 is large. Also, the inner annular hose 18 and the outer annular hose 19 have a large diameter so that the inner annular hose 18 and the outer annular hose 19 can be in close contact with each other.

In the experiment, the pressure of the air pressurized into the inner annular hose 18 and the outer annular hose 19 was increased by 2.5 k.
g / cm ² -2.8 kg / cm ² . Then, there was no water leakage until the pressure of the water injected from the injection pipe 33 into the gap between the double pipes reached 0.85 kg / cm ² .

The water pressure in the gap between the double pipes slightly leaked at about 0.9 kg / cm ² . Experiment 3
The water pressure in the gap between the double pipes was 0.9 kg / c
m ² was the limit.

[0022]

According to the pipe end treatment support of the present invention, an inner annular hose 18 is fitted inside the hose support ring 1 and an outer annular hose 19 is fitted outside the hose support ring 1, and the positioning tool 11 is attached to the hose support ring 1. It is provided.

Therefore, the pipe end treatment support of the present invention is inserted into the gap between the double pipes, fixed with the positioning tool 11, and when the filling material is filled at a high pressure, the outside of the double pipe is used. A wedge or the like is driven into the gap between the ends to prevent the support for filling the double-pipe filling material from moving.
The tube end treatment support can be mounted by press-fitting a fluid into the outer annular hose 8 and the outer annular hose 19.

Accordingly, the mounting is easy, and the gap between the double pipes can be filled with the filling material immediately after the mounting, so that the filling can be started in a short time.

[Brief description of the drawings]

FIG. 1 is a partially cutaway front view of an embodiment of the present invention.

FIG. 2 is a sectional view of the embodiment of the present invention, taken along line AA of FIG. 1;

FIG. 3 is an exploded perspective view showing a part of a hose support ring according to an embodiment of the present invention;

FIG. 4 is a front view showing a part of the embodiment of the present invention in a partially broken and enlarged view;

FIG. 5 is a sectional view schematically showing a mounted state of the embodiment of the present invention;

FIG. 6 is a front view showing the state of the double pipe used in the experimental example of the present invention.

FIG. 7 is a sectional view showing a conventional example.

────────────────────────────────────────────────── ─── Continuing on the front page (72) Kazuo Kobayashi 1-1-2, Marunouchi, Chiyoda-ku, Tokyo, Japan Honko Tube Co., Ltd. (72) creator Yasuhiro Matsuo 122-6 Shikutsu Koku, Atsugi-shi, Kanagawa Prefecture (72) Inventor Person Satoshi Furuya 391-3 Minami-Toyoda, Kanagawa Hiratsuka-shi Happy Shota No. 201 (72) Inventor Hiroshi Nishiyama 7-30-8 Oi, Shinagawa-ku, Tokyo Nishiyama Co., Ltd. (72) Inventor Reirou Masui Tokyo Shinagawa, Tokyo 7-30-8 Oi-ku, Nishiyama Co., Ltd. (56) References Japanese Utility Model Application Sho 53-85615 (JP, U) (58) Fields investigated (Int. Cl. ⁶ , DB name) F16L 55/00 F16L 1/00

Claims (1)

(57) [Scope of request for utility model registration] An annular hose support ring is provided, an inner annular hose having an annular elasticity is fitted inside the hose support ring, and an annular elastic force is fitted outside the hose support ring. The outer annular hose 19 having a characteristic is fitted around the outer annular hose 19, and a supply / discharge hose 25 is connected to the inner annular hose 18 and the outer annular hose 19. And a stopper 2 projecting to the front and rear sides of the outer annular hose 19 is provided at the front of the hose support ring 1. Positioning tool 11 that abuts the outer surface of outer tube 38 and the inner surface of outer tube 38 to fix hose support ring 1
With pipe end processing support.