JP2565571Y2 - Soil leak gas inspection device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for investigating a gas leaked from the soil used for pavement work on roads or the like.

[0002]

2. Description of the Related Art Conventionally, investigations of gas leaking into the soil during road construction and the like have been carried out by first drilling a boring hole in the soil with a boring device, then inserting an air collecting pipe into the boring hole and entering the air collecting pipe. The gas leak was checked by a detector to check for gas leakage.

[0003]

[Problem to be Solved by the Invention] At this time, since the borehole formed in the trench excavated on the road is oblique or nearly horizontal, the earth and sand is clogged even if the air collecting pipe is inserted, and it is difficult to conduct an accurate investigation in practice. There was a problem that there was. In other words, as a leak gas inspection device, a horizontal or diagonal small hole formed in a trench excavated on a road can be easily inserted and taken out of the air collecting pipe, and the leak gas can be inspected without any trouble. It is demanded that it can be done. The present invention has been made in view of this point, and in order to solve the above-mentioned conventional problems, the leak gas outlet pipe has a unique configuration, and is formed in a horizontal or oblique direction formed in a road groove. The leak gas outlet pipe can be easily inserted and removed from the small hole.
The leak gas can be easily taken out, so that the workability of the leak gas investigation is also greatly improved.

[0004]

Means for solving the above problems will be described. The underground gas leakage inspection apparatus of the present invention includes a wire inside a leak gas outlet pipe formed by a flexible pipe on the rear side. The ground gas charging guide member is connected to one end of the wire on the leading end side of the leaked gas outlet pipe, and the other end of the wire is drawn out longer from the rear end of the leaked gas outlet pipe. is there.

A wire extended from the rear end of the leaked gas outlet pipe is provided with a wire locking member at a distance from the rear end of the leaked gas outlet pipe, and the other end of the wire is provided at the other end of the wire. A configuration may be adopted in which a handle portion is provided, an outlet is provided at an end of a flexible pipe of the leaked gas outlet pipe, and a wire stopper portion is provided in the outlet.

[0006]

The operation of the leakage gas outlet pipe according to the present invention in the above configuration will be described together with a usage example. First, a boring hole is formed diagonally or horizontally in the groove by a boring device. Thus, in a state where the other end of the wire is pulled and no gap is formed between the underground guide member and the tip of the leaked gas outlet pipe, the leaked gas outlet pipe itself is inserted into the soil, that is, the boring hole. Push in. At this time, the underground guide member located at the tip of the leak gas outlet pipe serves as a guide, and the flexible pipe is formed only at the rear side of the leak gas outlet pipe, so the front part of the leak gas outlet pipe Can be easily pushed into the soil, and at this time, the work can be easily performed even in a narrow groove by bending the flexible pipe upward. Further, depending on the condition of the soil, it is also possible to push into the soil while forming the small holes by the leaked gas outlet pipe itself without forming the small holes by other boring devices. At this time, the underground guide member blocks the end of the leaked gas outlet pipe, so that the underground guide member is not clogged with soil. When the leaked gas outlet pipe is pushed into the soil for a predetermined length in this way, the wire is set in a free state, and when the leaked gas outlet pipe is slightly pulled out, the soil guide member remains at the pushed-in position. A gap is formed between the guide member and the tip of the leakage gas outlet pipe. Therefore,
If there is a leaked gas, the leaked gas enters the leaked gas outlet pipe through this gap, and can be taken out from the flexible pipe via the outlet and examined.

[0007]

BRIEF DESCRIPTION OF THE DRAWINGS FIG.
Reference numeral 1 denotes a leak gas outlet pipe, and the rear side of the leak gas outlet pipe 1 is constituted by a flexible pipe 2. A wire 4 is inserted into the leak gas outlet pipe 1, and an underground guide member 3 is connected to one end of the wire 4 on the distal end side of the leak gas outlet pipe 1.
Further, the other end of the wire 4 is configured to be drawn out longer from the rear end of the leaked gas outlet pipe 1. And the wire 4 pulled out from the rear end of the leaked gas outlet pipe 1 longer,
A wire locking member 5 is provided at a distance from the rear end of the leaked gas discharge pipe 1, a handle 8 is provided at the other end of the wire 4, and an end of the flexible pipe 2 is provided at the end. An outlet 6 is provided, and the outlet 6 is provided with a wire stopper 7. The wire locking member 5 is, for example, T-shaped. In such a configuration, as shown in FIG. 2, the other end of the wire 4 is pulled by the handle portion 8 so that a gap 10 described below is not formed between the underground guide member 3 and the tip of the leaked gas discharge pipe 1. In the state, the leaked gas outlet pipe 1 is inserted into the soil, for example, into a lateral small hole formed in the road groove 9, and at this time, the soil guide member 3 located at the tip of the leaked gas outlet pipe 1 is inserted. Is the guide and the flexible pipe 2
Is configured only on the rear side of the leak gas outlet pipe 1,
The front part of the leaked gas outlet pipe 1 can be easily pushed into the soil, and the flexible pipe 2 is bent upward as shown in FIG. Can be easily performed. In the above operation, since the gap 10 is not formed between the soil guide member 3 and the tip of the leaked gas outlet pipe 1, the soil guide member 3 closes the tip of the leaked gas outlet pipe 1. Thus, it is possible to prevent the inflow of soil into the leak gas outlet pipe 1. At this time, since the front side of the leaked gas outlet pipe 1 is not a flexible pipe but has a soil guide member 3 at the tip thereof, depending on the state of the soil, a small hole may be formed in advance by another boring device. Instead, it can be pushed into the soil while forming a boring hole by itself. When the leaked gas outlet pipe 1 is pushed into the soil for a predetermined length in this way, the wire locking member 5 is released from the wire stopper 7 to make the wire 4 free, and the leaked gas outlet pipe 1 is slightly pulled out. , As shown in FIG.
Since the soil guide member 3 remains at the pushed-in position, a gap 1 is provided between the soil guide member 3 and the tip of the leaked gas discharge pipe 1.
0 will be formed. Therefore, when there is a leak gas, the leak gas enters the leak gas outlet pipe 1 through the gap 10 and can be taken out from the flexible pipe 2 through the outlet 6 for inspection. After the end, the leaked gas outlet pipe 1 is pushed again into the soil, the wire locking member 5 of the wire 4 is locked to the wire stopper 7, and then the leaked gas outlet pipe 1 is pulled out. It is supported by the wire 4 and can be pulled out integrally with the leaked gas outlet pipe 1.

[0008]

[Effects of the Invention] Since the present invention is as described above, it is possible to easily push or pull out the leaked gas outlet pipe into the soil in a narrow road trench during road construction, etc. The tip of the leaked gas outlet pipe can be closed by the soil guide member, so that soil can be prevented from entering and clogging from the tip, and the tip of the leaked gas outlet pipe can be easily operated. To form a gap,
It is possible to carry out the investigation for extracting the leaked gas without any trouble, and there is an excellent effect that the workability of the investigation for the leaked gas is remarkably improved.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram showing an overall configuration of the present invention.

FIG. 2 is a partially enlarged perspective view showing a use state of the present invention.

FIG. 3 is a partially enlarged perspective view showing a use state of the present invention.

FIG. 4 is a partial cross-sectional view showing a use state of the present invention.

FIG. 5 is a partially enlarged sectional view showing a use state of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Leakage gas discharge pipe 2 Flexible pipe 3 Underground guide member 4 Wire 5 Wire locking member 6 Outlet 7 Wire stopper 8 Handle part 9 Road groove 10 Gap part

Claims (4)

(57) [Scope of request for utility model registration] 1. A leakage gas guide comprising a flexible tube on the rear side.
Insert a wire into the outlet pipe, and place a wire on the tip side of the leaked gas outlet pipe.
Connect the underground loading guide member to one end of the ear and
The other end of the wire is longer than the rear end of the leak gas outlet pipe.
Underground leak gas inspection device (2) Pulling the leaked gas outlet pipe longer from the rear end.
The discharged wire is a distance from the rear end of the leak gas outlet pipe.
At a distance, a wire locking member is provided,
The handle is provided at the other end of the hook.
Item 1. Soil leakage gas inspection device according to item 1. 3. A leak gas outlet pipe is taken out at an end of a flexible pipe.
The soil leakage gas according to claim 1, wherein a mouth is provided.
Survey equipment 4. A wire stopper is provided at an outlet.
The soil leakage gas inspection device according to claim 1, characterized in that: