JP4259669B2 - Pipe extraction device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention is configured to provide a suction portion for sucking water in the pipe on the distal end side of the flexible extraction hose and to discharge the water sucked by the suction portion outside the pipe through the extraction hose, An in-tube photographing camera connected to a flexible transmission cable is provided on the distal end side of the extraction hose so that image data photographed by the camera is transmitted outside the tube through the transmission cable. The above-described extraction hose and transmission cable are assembled inside the extraction hose formed in a cylindrical shape with the transmission cable entering in the radial direction with a gap in the radial direction so that the drum can be wound and unwound. It is related with the in-pipe water extraction apparatus provided in.
[0002]
[Prior art]
The above-mentioned pipe extraction device searches for the water accumulated in the pipe from the image of the camera inserted in the pipe, and simultaneously moves the suction part. When the accumulated water is found, the water is sucked by the suction part and passed through the extraction hose. It is designed to discharge efficiently outside the tube.
FIG. 9 shows a conventional in-pipe water extraction apparatus, in which a suction part 1 for sucking water in the pipe A is provided on the distal end side of a flexible extraction hose 2 and the water sucked by the suction part 1 is extracted. The camera 6 is configured to be discharged to the outside of the pipe through the hose 2, and an in-tube photographing camera 6 to which a flexible transmission cable 5 is connected is provided in front of the suction unit 1 and photographed by the camera 6. The image data is configured to be transmitted to the outside of the pipe through the transmission cable 5, and the transmission cable 5 is provided inside the extraction hose 2 so that the extraction hose 2 and the transmission cable 5 can be efficiently and integrally inserted into the pipe. Are assembled in a state of entering with a gap in the radial direction.
Then, the leading end side of the transmission cable 5 is inserted through the suction portion 1 in a penetrating manner so that the extraction hose 2 and the transmission cable 5 can be easily wound around the drum and transported easily. The leading end side of the transmission cable 5 is drawn into the inside of the water extraction hose 2 as the drum is wound around the drum, or the leading end side of the transmission cable 5 is pushed out forward of the suction unit 1 as the drum is drawn out. Wearing.
That is, when the extraction hose 2 and the transmission cable 5 having the same length are assembled in a state where they are fixed to each other at a plurality of positions separated in the longitudinal direction, the extension of the transmission cable 5 and the extension of the extraction hose 2 are fixed between the fixed positions. Are constrained to each other, so that it is difficult to deform them so that they are wound around the drum, and therefore, it is difficult to wind them around the drum, so that the extraction hose 2 and the transmission cable 5 can move relative to each other along the longitudinal direction. As described above, the distal end side of the transmission cable 5 is inserted through the suction portion 1 in a penetrating manner so that it can be easily wound around the drum.
[0003]
[Problems to be solved by the invention]
For this reason, since the relative position between the camera connected to the transmission cable and the suction unit varies depending on the amount of the extraction hose 2 that is drawn from the drum, the camera and suction unit when the collected water is photographed There are drawbacks in that it is difficult to grasp the relative distance and it is difficult to accurately move the suction portion to the position of the water.
The present invention has been made in view of the above circumstances, and the extraction hose and the transmission cable can be efficiently and integrally inserted into the pipe, and while being assembled so as to be easily wound around the drum, the feeding amount from the drum Regardless of the object, it is an object of the present invention to make it possible to accurately move the suction portion to the position of the water found by the camera.
[0004]
[Means for Solving the Problems]
According to the first aspect of the present invention, the suction part for sucking water in the pipe is provided on the distal end side of the flexible extraction hose, and the water sucked by the suction part is discharged outside the pipe through the extraction hose. In addition, a camera for in-pipe photography to which a flexible transmission cable is connected is provided on the distal end side of the extraction hose, and data of an image taken by the camera is transmitted to the transmission cable. The drum and the transmission hose and the transmission cable are assembled to the inside of the cylindrical extraction hose with the transmission cable entering in a radial direction with a gap therebetween, and a drum a winding freely and unwinding freely provided Aru tube emergent device, end etc. fixes the bovine each other after the transmission cable and the emergent hose, the camera head of the emergent hose By integrally fixed to the end portion, the emergent hoses to each other fixing the-edge throat bovine of said transmission cable, and the transmission cable and the emergent hose, between their fixing points, is assembled on the outside The extraction hose is assembled so that the length of the extraction hose is shorter than the length of the transmission cable assembled inside thereof , and the transmission cable is slackened .
When wound on the drum of the emergent hose and transmission cable between [action] fixing points, credit cable feed Ru Oh assembling inwardly, against emergent hose are assembled to the outside, the emergent hose and transmission cables Since the relative movement is possible by the difference in length, the drum can be easily wound up.
Regardless of the amount of the extraction hose and the transmission cable from the drum, the relative position between the suction cable and the camera connected to the transmission cable can be kept constant. It is easy to grasp the relative distance from the suction part in advance.
[Effect] The water extraction hose and the transmission cable can be efficiently inserted into the pipe and assembled so that they can be easily wound around the drum, and the relative distance between the camera and the suction part regardless of the feed amount from the drum. Is constant, and the suction part can be accurately and accurately moved to the position of the water found by the camera.
[0005]
[0006]
In addition, the transmission cable can be protected by a water extraction hose so that the transmission cable is not directly contacted with or rubbed against the inner surface of the pipe, thereby improving the durability of the transmission cable.
[0007]
The characteristic configuration of the invention described in claim 2 resides in that the extraction hose is resin-molded.
[Operation] Compared to a metal extraction hose, it is easy to manufacture an extraction hose having appropriate elasticity and flexibility so that it can be easily inserted into a bent pipe, and the weight can be reduced.
[Effect] Water accumulated in the bent pipe can be easily discharged out of the pipe.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings. In the drawings, the parts indicated by the same reference numerals as those in the conventional example indicate the same or corresponding parts.
[First Embodiment]
FIG. 1 shows an in-pipe extraction device for discharging water W accumulated in a city gas supply pipe A embedded in the soil to the outside, and a suction part 1 for sucking the water W in the pipe is connected to the tip side. The flexible water extraction hose 2 withdrawn from the drum 3 is inserted into the pipe through the branch joint 4 connected in the middle of the gas supply pipe A, and the suction part 1 enters the water W accumulated in the pipe. In addition, the suction pump P is driven so as to be discharged out of the pipe on the ground side through the extraction hose 2, and the extraction hose 2 is formed of polyethylene resin.
As shown in FIG. 2, a camera head 7 provided with a CCD camera 6 for in-pipe photography to which a transmission cable 5 is connected is fixed to the distal end of the extraction hose 2. As shown in FIG. 6, the end side is connected in communication with a drain pipe 10 connected to the drum 3.
Then, the image data taken by the CCD camera 6 is transmitted to the inspection unit 9 provided with the monitor TV 8 through the transmission cable 5, and the presence or absence of water W accumulated in the tube is monitored by the image displayed on the monitor TV 8. However, the water extraction hose 2 is inserted into the pipe, and when the accumulated water W is found, the water W is sucked by the suction part 1 and discharged outside the pipe.
[0009]
The camera head 7 is configured by screwing a hemispherical tip metal fixture 11 to which the CCD camera 6 is integrally fixed to a cylindrical metal fixture 12, and fixing the cylindrical metal fixture 12 and the extraction hose 2 in a ring shape. It is fastened and fixed in a watertight manner with a hardware 13.
As shown in FIG. 3, the metal tip 11 includes a window hole 14 that allows the CCD camera 6 to face forward, and an insertion hole 16 of a drain pipe 15 that connects the suction portion 1 and the drain hose 2 to each other. A small light projecting lamp 17 is attached to the front face.
A water stop plate 18 that prevents water from entering the water hose 2 is provided inside the cylindrical hardware 12 to form a space, and as shown in FIG. The rear end side of 15 is penetrated through the waterstop plate 18 in a watertight state, and the transmission cable 5 is penetrated through the waterstop plate 18 in a watertight state.
As shown in FIG. 5, the transmission cable 5 is housed in a watertight manner inside a cylindrical covering material 20 made of a soft resin together with a power supply cable 19, and the water extraction hose 2 and the transmission cable 5 are composed of a water extraction hose. 2, the transmission cable 5 is assembled together with the tubular covering material 20 in a state of entering the radial direction with a gap therebetween.
[0010]
As shown in FIG. 6, the drum 3 rotatably supports a rotating cylinder 22 having rods 21 fixed on the left and right sides thereof on a pedestal 23, and can wind and draw out the water extraction hose 2 on the rotating cylinder 22. It is provided freely.
A connecting pipe 24 that connects the extraction hose 2 and the drain pipe 10 is piped inside the rotary cylinder 22, and the extraction hose 2 is connected to one end side of the connecting pipe 24, and is connected to the other end side of the connecting pipe 24. The drain pipe 10 is connected in communication with the drain pipe 10 so as to be relatively rotatable, and the rear end side of the extraction hose 2 is connected in communication with the drain pipe 10.
Further, the transmission cable 5 and the power supply cable 19 are pulled out from the middle of the connecting pipe 24 together with the cylindrical covering material 20 to the inside of the rotary cylinder 22, and the transmission cable 5 and the power supply cable 19 are connected to the drum 3 side. It is connected to a connection terminal 25 fixed to.
In addition to the monitor TV 8, the inspection unit 9 includes an operation unit 26 for adjusting the amount of the water extraction hose 2 that is fed out from the drum 3 and a power supply device 27. The inspection unit 9 and the connection terminal 25 are connected to each other. They are connected by a cable 28.
The inspection unit 9 and the connection terminal 25 are connected by a sufficiently long connection cable 28 so that the connection cable 28 is not strongly twisted regardless of the rotation of the drum 3.
[0011]
Accordingly, the water extraction hose 2 and the transmission cable 5 are fixed at two positions with their distal ends fixed to each other via the camera head 7 and their rear ends fixed to each other via the drum 3 so that they are separated in the longitudinal direction. The length of the extraction hose 2 that is assembled to the outside between the fixed locations of the extraction hose 2 and the transmission cable 5 is the length of the transmission cable 5 that is assembled to the inside thereof. The transmission cable 5 is assembled with a sufficient slack so as to be shorter than that, and can be easily wound around the drum 3.
[0012]
[Second Embodiment]
FIG. 8 shows an embodiment in which the extraction hose 2 and the transmission cable 5 are assembled in a state in which the extraction hose 2 enters the inside of the transmission cable 5 formed in a cylindrical shape with a gap in the radial direction. The transmission cable 5 is inserted into a protective outer tube 29 having flexibility at a radial interval.
The transmission cable 5 is configured by embedding a data transmission conductor 31 in a flexible cylindrical covering material 30 made of a hard resin, and the cylindrical covering material 30 includes a data transmission wire 30. In addition to the conducting wire 31, an electric wire 31 for power feeding and the like is embedded.
The leading end sides of the extraction hose 2 and the transmission cable 5 are fixed to each other, the rear end sides are fixed to each other, and the extraction hose 2 and the transmission cable 5 are assembled to the outside between the fixed portions. The extraction hose 2 is assembled with a sufficient slack so that the length of the transmission cable 5 is shorter than the length of the extraction hose 2 assembled on the inside thereof, and can be easily wound around the drum 3. It is like that.
[0013]
[Other Embodiments]
1. In the in-pipe water extraction apparatus according to the present invention, the water extraction hose and the transmission cable may be fixed to each other at an intermediate position other than their end portions.
2. In the pipe extraction device according to the present invention, the transmission cable or the extraction hose to be assembled on the inside is formed in a spiral shape, and one of the lengths assembled on the outside is fixed between the other fixed portions. It may be assembled to be shorter than the length of.
3. In the in-pipe extraction apparatus according to the present invention, the suction portion may be provided integrally on the leading end side of the extraction hose.
4). In the in-pipe extraction apparatus according to the present invention, the suction portion may be provided so as to be swingable up and down with respect to the distal end side of the extraction hose.
5. The in-pipe water extraction apparatus according to the present invention may be provided so as to be detachable from the camera head 7 by integrally forming the suction part 1 and the water extraction pipe 15 shown in the embodiment.
6). The in-pipe water extraction apparatus according to the present invention forms a suction portion by forming a large number of suction holes in the tube wall on the front end side of the water extraction tube 15 shown in the embodiment, and an elbow or the like is formed at the front end portion of the water extraction tube 15. A spherical body for guiding the traveling direction of the in-pipe water extraction apparatus passing through the bent pipe may be provided so as to be swingable up and down and left and right.
7). In the in-pipe extraction apparatus according to the present invention, an image capturing head in which a lens is provided at the tip of an optical fiber bundle for image transfer as a transmission cable may be provided as a camera for in-pipe shooting.
8). The in-pipe water extraction apparatus according to the present invention may be provided with a camera driven by a battery. 9. The pipe extraction apparatus according to the present invention may extract water in various pipes other than the city gas supply pipe.
[Brief description of the drawings]
[Fig. 1] Schematic side view of pipe extraction device [Fig. 2] Cross section of main part [Fig. 3] Front view of main part [Figure 4] Cross section of main part [Figure 5] Cross section of main part [Figure 6] ] Plan view of the main part [FIG. 7] Partial cross-sectional view of the main part [FIG. 8] Cross-sectional view of the main part showing the second embodiment [FIG. 9] Side view of the main part of a conventional in-pipe water extraction apparatus [Explanation of symbols] ]
DESCRIPTION OF SYMBOLS 1 Suction part 2 Extraction hose 3 Drum 5 Transmission cable 6 Camera 7 Camera head A pipe

Claims (2)

A suction part for sucking water in the pipe is provided on the distal end side of the flexible extraction hose, and the water sucked by the suction part is configured to be discharged outside the pipe through the extraction hose.
An in-tube photographing camera connected to a flexible transmission cable is provided on the distal end side of the extraction hose so that image data photographed by the camera is transmitted outside the tube through the transmission cable. To configure
The extraction hose and the transmission cable are assembled inside the extraction hose formed in a cylindrical shape in a state where the transmission cable enters in a radial direction at an interval, and is provided so as to be rewound and unwound on a drum. In-pipe water extraction device,
Wherein the emergent hose while end etc. fix the bovine each other after the transmission cable, by integrally fixing the camera head to the tip portion of the emergent hose, together-edge throat bovine of the transmission cable and the emergent hose Fixed,
The extraction hose and the transmission cable are assembled so that the length of the extraction hose assembled on the outside is shorter than the length of the transmission cable assembled on the inside between the fixed portions , In- pipe water extraction device with slack in the transmission cable . The emergent hose resin molded to Aru claim 1 Symbol placing the tube emergent device.

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