JP2548111Y2 - Protective sheet for piping - 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 protection sheet for protecting a plastic pipe buried underground from being hit by a drilling tool or the like.

[0002]

2. Description of the Related Art For example, pipes of gas or the like buried in the ground may be damaged by a drilling tool or the like during work. Since the gas piping is made of polyethylene or vinyl chloride, in order to prevent the above-mentioned accident, conventionally, as shown in FIG. To find the sign sheet at the time of excavation work (see FIG. 13) or hook it with a tool or the like so that it is possible to know that the pipe is buried below (see FIG. 14), Damage caused by excavation tools and the like is prevented beforehand.

[0003]

However, in practice, during excavation work, the excavation tool may accidentally dig too much and the excavation tool may break through the sign sheet. In such a case, the tip of the excavation tool may contact the lower pipe. This will damage the piping. Further, when the position of the sign sheet is shifted, it is useless at all. The present invention has been made in view of such a point.

[0004]

In order to solve the above-mentioned problems, the present invention provides a method for connecting a pipe buried underground with a drilling tool.
Protection sheet for piping to protect against
Thus, a multi-layer sheet is formed by laminating an armor material and a soft material which are formed in a cross shape at least with a polymer material and laminated in plurals.

[0005]

The tip of the drilling tool is blocked by the armored material, and the damage to the piping is greatly reduced. Further, even when the tip of the excavating tool hits the armor material, the shock is buffered by the soft material, and damage to the piping can be prevented. In addition, armored material
Because of this, it can be easily laid on piping.

[0006]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing a protective sheet for piping according to the present invention. In FIG. 1, reference numeral 10 denotes a pipe protection sheet, and the pipe protection sheet 10 is configured by stacking at least an armor material 11 and a soft material 12. The armor material 11 is made of a cloth-like material made of a polymer material such as polyethylene, which is excellent in durability and rust resistance, is lightweight, and can be easily installed in piping, and is formed into a thin plate having a thickness of about 1 mm.

[0007] The soft material 12 is made of polyethylene in the form of felt and has a good cushioning property, and can be impregnated with an insect repellent.

Here, specific examples of materials that can be applied to the armor material 11 and the soft material 12 in the pipe protection sheet 10 will be listed and described in detail. Thin plate material (see FIG. 2) A cloth-like polymer material is applied. Strength ◎ Flexibility × Thickness (mm) 1.00 Cloth-like material (see FIG. 3) A thin strip-shaped polymer material is formed in a cloth-like shape. Strength ○ Flexibility ◎ Thickness (mm) 0.15 Felt-like material Polyethylene made into felt. Shock absorber. It can be impregnated with insect repellent. Strength △ Flexibility ◎ Thickness (mm) 1.30 Air cap (See Fig. 4) Can be used as shock absorber and heat insulator. Strength × flexibility ○ Thickness (mm) 3.00

Next, an embodiment in which the above materials are appropriately combined will be described. As shown in FIG. 5, the pipe protection sheet 20 is formed by laminating three sheet-like materials 21 as armoring materials,
The air cap 22 is composed of one piece as a soft material.

According to the pipe protection sheet 20, the tip of the excavating tool is blocked by the thin plate material 21,
Damage to the piping is significantly reduced. In addition, even if the tip of the excavating tool impacts on the thin plate-shaped material 21,
The shock is buffered by the air cap 22, and damage to the piping can be reduced.

The piping protection sheet according to the present invention can be implemented as the following combinations. That is, as shown in FIG. 6, the protective sheet for piping 30 is formed by laminating six cloth-like materials 31 as an armor material, one air cap 32 as a soft material, and a felt-like material 33.
Are combined and stacked.

In the pipe protective sheet 30, 5
In case of 0A 6mm thick polyethylene tube, slight damage
(3% wall thickness), but much less than the 20% wall thickness which must be replaced. Also,
The overall flexibility is high and the fixing work is easy to perform. The material itself is inexpensive, and the cost can be reduced.

In addition to the examples described above, various combinations can be used to form a laminated structure. The relationship between the combination and the degree of damage is shown as an actual example. For the sample, polyethylene tube 50A,
This was performed using a wall thickness of 6 mm. That is, damage depth (mm) Ratio to wall thickness (%) Without protective sheet 2.56 42.2 2. One thin plate 0.60 10.0 3. One cross cloth 0.86 14.2 4. One felt 0.90 15.0 5. 5 thin sheets, 1 air cap 0.00 0 6 cloths, 1 air cap, 0.20 3.3 1 felt In this way, it can be seen that damage to the piping can be prevented by the multilayer protective sheet.

Although the present invention has been described with reference to actual examples, the following methods are conceivable for fixing the pipe protective sheets 10 and 2030 according to the present invention to the pipe. That is, the pipe protection sheets 10, 20, 30 are wound around the pipe 1, and fixed with the binding band B or the like (see FIG. 7). Protective sheets for piping 10, 2
Lay 0 and 30 (width 25 cm) (see FIG. 8). The pipe protection sheets 10, 20, 30 are suspended from above the pipe 1 and fixed by the clamp members C (see FIG. 9). The pipe 1 is protected by the pipe protective sheets 10, 20, 30.
Envelop and weld the ends by heat (see FIG. 10). The pipe 1 is protected by the pipe protective sheets 10, 20, 30.
The wrapping is performed, and the ends are fixed with staples S (see FIG. 11). As described above, the effects of the pipe protection sheets 10, 20, and 30 can be exerted regardless of the method of fixing.

[0015]

[Effects of the Invention] As described above, according to the present invention, the tip of the drilling tool is prevented by the armored material, and damage to the piping is greatly reduced. Further, even when the tip of the excavating tool hits the armor material, the shock is buffered by the soft material, and damage to the piping can be prevented. Furthermore, the armor material is a cloth
Fixing work to the piping is easy.

[0016]

[Brief description of the drawings]

FIG. 1 is a schematic explanatory view of a pipe protection sheet according to the present invention.

FIG. 2 is a schematic view of a material applicable to the protective sheet for piping shown in FIG.

FIG. 3 is a schematic view of a material applicable to the protective sheet for piping shown in FIG.

FIG. 4 is a schematic view of a material applicable to the protective sheet for piping shown in FIG.

FIG. 5 is an explanatory cross-sectional view showing one embodiment of the protective sheet for piping according to the present invention.

FIG. 6 is an explanatory sectional view showing another embodiment of the pipe protection sheet according to the present invention.

FIG. 7 is a view showing an example of a method of fixing the pipe protection sheet according to the present invention.

FIG. 8 is a diagram illustrating an example of a method of fixing the pipe protection sheet according to the present invention.

FIG. 9 is a view showing an example of a method of fixing the pipe protection sheet according to the present invention.

FIG. 10 is a view showing an example of a method of fixing the pipe protection sheet according to the present invention.

FIG. 11 is a view showing an example of a method of fixing the pipe protection sheet according to the present invention.

FIG. 12 is an illustration showing an example of use of a conventional sign sheet for piping.

FIG. 13 is an illustration showing an example of use of a conventional sign sheet for piping.

FIG. 14 is an illustration showing an example of use of a conventional sign sheet for piping.

[Explanation of symbols]

 10, 20, 30 Piping protection sheet 11 Armor material 12 Soft material 21 Thin plate material 22, 32 Air cap 23 Opening 31 Cross material 33 Felt material

Claims (1)

(57) [Scope of request for utility model registration] 1. A pipe buried in the ground is drilled with a drilling tool or the like.
Protective sheet for piping to protect against
A protective sheet for piping characterized in that at least a multi-layered sheet is formed by laminating a soft material and an armor material formed by laminating a plurality of polymer materials in a cross shape and laminating a plurality of soft materials.