JPH08303697A - In-pipe work device - Google Patents

Abstract

PURPOSE: To easily remove standing water in a conduit by attaching a water extracting device on the tip of a water extracting hose having flexibility and attaching a pipe inside work part on the tip of the water extracting device. CONSTITUTION: When accumulated water accumulated in a gas pipe is extracted and removed while confirming the presence or absence of the water, a water extracting hose B is instead into the gas pipe from an opening of a water taking-out equipment in the gas pipe while making the tip on which a pipe inside camera D or a water extracting device A is attached go ahead. The presence or absence of accumulated water is conformed by the pipe inside camera D, and extracting work for accumulated water is performed by the water extracting device A via the water extracting hose B on the basis of the confirmation. Since the vicinity of a water suction port A3a opening on one part on the periphery is constituted on a weight part A3b in the cylindrical member A3, the cylindrical member A3 is stably rotated and stopped in a state where the weight part A3b is always positioned on the lower part, and water extraction is reliably performed in such a position that the suction port A3a always faces accumulated water.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pipe working device,
More specifically, when a liquid such as accumulated water is accumulated in the conduit due to water coming from the opening of the conduit or flooded from the damaged part of the conduit, while checking the liquid such as accumulated water in the conduit. Work for extracting and removing from the conduit, or work inside the pipe used to perform various works that should be performed inside the conduit while avoiding the liquid accumulated in the conduit (for example, lining the inner surface of the pipe) Regarding the device.

[0002]

2. Description of the Related Art A suitable device for such a pipe working device has not been developed so far, and therefore, in the past, a pipe was drilled in the vicinity of the pipe where the liquid is likely to exist. After the work is exposed, the pipe is subjected to piercing work or cutting work, and then the liquid is directly extracted from the pipe and removed.

[0003]

However, in the above-mentioned conventional construction, it is considerably difficult to estimate the location where the liquid is likely to exist in the conduit, and the construction for piercing or cutting the conduit. There was a problem that it took a lot of time and labor. The present invention has been made by paying attention to such an actual situation, and an object thereof is to provide a means capable of solving a plurality of problems occurring in the above-mentioned conventional construction at once.

[0004]

In a pipe working apparatus according to the present invention (hereinafter referred to as the apparatus of the present invention), a water drawing apparatus is attached to the tip of a flexible water drawing hose, and the tip side of the water drawing apparatus is attached. The first characteristic configuration is that an in-pipe working unit is attached (corresponding to claim 1).

Further, in addition to having the first characteristic structure, a cylindrical water drawing portion having water passage holes opened in a radial direction at a plurality of positions on the circumference is attached to the tip of the water drawing hose, and the cylindrical water drawing portion is provided. Inside, a part of the circumference is opened as a water suction port, and a cylindrical member formed in the weight part in the vicinity of the water suction port is heavier than other parts, on the axis of the cylindrical water extraction part. A second characteristic configuration is that the water extraction device is configured by being rotatably supported about an axis along the same (corresponding to claim 2).

[0006]

When the apparatus of the present invention having the above-mentioned first characteristic structure is used to extract and remove the liquid such as pooled water accumulated in the conduit while confirming the presence or absence thereof, the water removal in the conduit is performed. Whether there is liquid such as pooled water by the working section inside the pipe by inserting the water drawing hose into the conduit from the opening of the vessel etc., with the tip side where the working section inside the pipe or the water drawing apparatus is attached preceding While confirming that, by performing a work of extracting the liquid such as pooled water by the water extracting device via the water extraction hose based on the confirmation, the excavation work around the conduit or the conduit where the liquid is likely to exist It is possible to effectively remove liquid such as accumulated water in the conduit while omitting drilling work and cutting work. Further, even when performing various works to avoid liquid such as accumulated water in the conduit by using the device of the present invention having the first characteristic configuration, from the opening in the conduit into the conduit, Inserting the water extraction hose while leading the tip side, while performing the operation of extracting liquid such as pooled water by the water extraction device via the water extraction hose, by performing the various operations by the in-pipe working unit, It is possible to effectively carry out various operations to avoid the liquid in the conduit.

[0007]

As described above, according to the device of the present invention having the first characteristic configuration, it is necessary to carry out a troublesome work which is necessary at the time of the conventional construction work, that is, the location where the liquid exists in the conduit. It is possible to effectively carry out the desired work while omitting the work of attaching and excavation work around the location where it is present, drilling work of pipes, cutting work of conduits, etc.Therefore, there are several problems in conventional construction work. It will be resolved all at once.

In the case of using the device of the present invention having the above-mentioned second characteristic structure, the tubular member is rotatably pivoted around the axis along the axis of the cylindrical water extraction part of the water extraction device. Since it is supported, the tubular member tends to freely rotate in the cylindrical water drawing portion, but the tubular member has the weight portion near the water inlet opening at a part of its circumference. Since the cylindrical member is configured to rotate, the rotation of the cylindrical member is stably stopped in a state where the weight portion near the water intake port is located below or substantially below the gravity port due to gravity. . Therefore, the water suction port always takes a posture of opening downward or substantially downward. as a result,
In extracting the liquid such as pooled water accumulated in the pipe line, the rotatable tubular member inside thereof is effective as described above, regardless of the posture of the cylindrical water extracting unit. , The water suction port always takes a posture of opening downward or substantially downward, and the liquid such as the pooled water is at least a part of the water passage holes at a plurality of circumferences in the cylindrical water drawing part. And, as described above, the merit that the water can be effectively extracted through both of the portions of the water intake port that are always downward or almost downward is added to the above merit.

[0009]

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

1 to 4 show an embodiment of the device of the present invention. In FIG. 1, B is a flexible water extraction hose, and the water extraction device A is attached to the tip of the water extraction hose B. Then, on the tip side of the water drawing device A, an in-pipe camera (hereinafter,
In-tube camera D) is attached.

The water extraction device A is specifically constructed as follows. That is, as shown in FIG. 1, at the tip of the water extraction hose B, a cylindrical water extraction part A1 having a substantially cylindrical overall shape is attached. A plurality of circumferential points (in the present embodiment, 4
A water passage hole A1a that is opened in the radial direction is formed at the location). A tubular member A3 is fitted inside the cylindrical water extracting portion A1 via a bearing A4, and the tubular member A3 has a shaft of the cylindrical water extracting portion A1 depending on the function of the bearing A4. It can rotate smoothly around the axis along the core. A part of the circumference of the tubular member A3 is opened at one position on the circumference as a water inlet A3a. Moreover, the water inlet A in the tubular member A3
As shown in FIG. 2, the vicinity of 3a is formed in a weight portion A3b that is heavier than other portions. In the present embodiment, as shown in FIG. 2, the portion of the tubular member A3 near the water inlet A3a is made of lead material, while the portion of the tubular member A3 other than the water inlet A3a is in the vicinity. Is made of steel, the vicinity of the water inlet A3a is
It is configured to be heavier than the other portions.

The in-tube camera D is specifically constructed as follows. That is, as shown in FIG. 1, the camera holding portion D2 is attached to the tip of the cable D1 that passes through the water extraction hose B and then through the water extraction device A. The main body of the camera holding unit D2 is
In consideration of operability, prevention of overheating, and the like, it is made of aluminum that is lightweight and has good heat conductivity, and its front portion is made of translucent waterproof glass. And, as shown in FIG. 3, at the center of the front portion of the camera holding portion D2, as shown in FIG.
It is equipped with a CD camera D3 and its CCD camera D
A plurality of lights D4 are provided around the area 3.
The power cord of the CCD camera D3 and the power cord of the light D4 are housed in the cable D1. In the rear part of the camera holding part D2, in the peripheral part,
A plurality of fins D5 for heat radiation are attached.

Using the apparatus of the present invention having the above-mentioned structure, the accumulated water (in the present embodiment, accumulated water accumulated in the overpass portion near the river) accumulated in a gas pipe P as an example of a conduit is
In the case of extracting and removing while confirming the existence thereof, as shown in FIG.
Inserting a water extraction hose B into the gas pipe P from No. 1 while leading the tip side where the in-pipe camera D and the water extraction device A are attached, and confirming whether or not the accumulated water is detected by the in-pipe camera D. By performing the extraction work of the accumulated water by the water extraction device A via the extraction hose B based on the above, it is conventionally necessary to perform the excavation work around the gas pipe P and the gas pipe where the accumulated water is likely to exist. It is possible to effectively remove the accumulated water in the gas pipe P while omitting the drilling work and cutting work of P. In FIG. 5, 11 is a pump for sucking the accumulated water, and 12 is the in-tube camera D.
13 is a monitor of information obtained by
It is a reel that can be wound up and held freely. Further, when the collected water is extracted, when the device of the present invention having the above-mentioned configuration is used, the main parts of the device of the present invention are shown in FIGS.
In other words, since the tubular member A3 is rotatably supported around the axis along the axial center of the tubular water extraction unit A1, the tubular member A3 is , Try to rotate freely in the cylindrical water extraction part A1,
The tubular member A3 has a water inlet A3 that opens at a part of its circumference.
Since the weight part A3b is formed in the vicinity of a, the tubular member A3 can be stably stopped when the weight part A3b in the vicinity of the water intake port A3a is located below or substantially below the water intake port A3a. become. Therefore, the water inlet A3a always takes a posture of opening downward or substantially downward.

Next, another embodiment will be described. [1] Needless to say, the number of water passage holes A1a formed in the peripheral wall of the cylindrical water extraction unit A1 is not limited to that of the above-described embodiment (that is, four places). [2] The constituent materials of the portion of the tubular member A3 near the water inlet A3a and the constituent materials of the portion of the tubular member A3 other than near the water inlet A3a are those of the above-described embodiment (that is,
Needless to say, it is not limited to the combination of lead material and steel material). [3] Needless to say, the location where the pooled water is extracted is not limited to that of the above-described embodiment (that is, the overpass portion near the river). [4] The pipeline for extracting the accumulated water may be a pipeline made of a fluid pipe other than the gas pipe. [5] The liquid extracted and removed by the device of the present invention is
Needless to say, it is not limited to the accumulated water, and may be a liquid other than the accumulated water generated by some treatment. [6] The device of the present invention can also be used when performing various operations in which liquid such as accumulated water in the conduit P should be avoided. For example, even when the pipe inner surface lining that dislikes water is performed, the device of the present invention is used to open the opening P in the conduit P.
Inserting a water extraction hose B into the conduit P from 1 with the tip side ahead, and performing various operations by the in-pipe working unit D while extracting the liquid by the water extraction device A via the water extraction hose B. As a result, it is possible to effectively carry out various operations that must avoid the liquid in the conduit P. In this case, it goes without saying that the in-pipe working unit D, unlike the above-described embodiment, needs to be configured as a device that can execute the various works.

It should be noted that reference numerals are given in the claims for convenience of comparison with the drawings, but the present invention is not limited to the configurations of the accompanying drawings by the entry.

[Brief description of drawings]

FIG. 1 is a vertical sectional view showing an embodiment of the device of the present invention.

FIG. 2 is a vertical cross-sectional view showing a water extraction device that is a component of the device of the present invention.

FIG. 3 is a front view showing an in-pipe working unit which is a component of the device of the present invention.

FIG. 4 is a rear view showing the working section in the pipe.

FIG. 5 is an explanatory diagram showing a usage state of the device of the present invention.

[Explanation of symbols]

 A Water extraction device A1 Cylindrical water extraction part A1a Water passage hole A3 Cylindrical member A3a Water intake port A3b Weight part B Water extraction hose D In-pipe working part

Claims (2)

[Claims] 1. A pipe in which a water extraction device (A) is attached to the tip of a flexible water extraction hose (B), and an in-pipe working section (D) is attached to the tip side of the water extraction device (A). Working equipment. 2. A cylindrical water draw-out portion (A1) having water passage holes (A1a) opened in the radial direction at a plurality of positions on the circumference is attached to the tip of the water draw-up hose (B), and the cylindrical water draw-out portion ( A cylindrical member in which a part of the circumference is opened as a water inlet (A3a) inside A1), and the vicinity of the water inlet (A3a) is formed in a weight portion (A3b) which is heavier than other portions. The pipe extracting device (A) according to claim 1, wherein the water extracting device (A) is configured by pivotally supporting (A3) around an axis along an axis of the cylindrical water extracting portion (A1). .