JP3963577B2 - Pipe extraction device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an in-pipe water extraction apparatus for extracting accumulated water in a pipe, and more specifically, a water suction port for sucking water from the inside of the pipe is attached to one end of a flexible extraction hose, and the other end is connected to the water absorption The present invention relates to an in-pipe extraction device attached to a water suction device that sucks and discharges water sucked from a mouth portion.
[0002]
[Prior art]
Conventionally, in order to extract water in a pipe buried in the ground, first, an endoscope camera that can visually observe the inside of the pipe is inserted into the pipe, and the position of the water accumulated in the pipe by the inserted camera is determined. After confirming and pulling out the camera from the inside of the pipe, the extraction hose is inserted into the pipe, and when the extraction head at the tip thereof reaches the position of the confirmed pooled water, The inside of the hose is sucked and the accumulated water in the pipe is sucked and discharged. For this purpose, the camera was provided separately from the extraction hose.
[0003]
[Problems to be solved by the invention]
In the above-described conventional configuration, the operation of confirming the position of the accumulated water to be extracted in the pipe and the operation of inserting the extraction hose into the pipe up to the confirmed accumulated water position and extracting water by the water suction device are performed separately. It was necessary to reconfirm the situation in the pipe after extraction. For this reason, both of the above operations had to be repeated. In order to cope with this, the applicant has previously proposed an in-pipe water extraction apparatus that allows a water extraction hose to be inserted at the same time as checking the position of the water accumulated in the pipe, as shown in FIG. (See Japanese Patent Application No. 5-69702). That is, in the proposed in-pipe water extraction apparatus, the camera head 20 is attached to the tip of the water extraction head 10 as shown in FIG. Accordingly, the water extraction hose 2 is inserted into the pipe, the water extraction head 10 is inserted up to the water extraction location L, that is, the location of the accumulated water W, and the accumulated water W is sucked by the suction port 1a of the water intake port portion 1. Can be performed without hindrance because the camera provided in the camera head 20 is visually observed inside the tube. However, in the above proposal, the purpose is to determine the insertion position when the extraction hose is inserted. Therefore, the state of the accumulated water can be visually recognized from the situation in front of the extraction head 10, so that the extraction head No consideration was given to the situation of water extraction at 10, that is, the suction state at the suction port 1a. In addition, since the camera head 20 is provided, when the camera head 20 does not reach the accumulated water, the extraction head 10 is in front of the water and cannot be extracted, so the camera head 20 is immersed in the accumulated water. In some cases, labor is required for maintenance, and in the case of a small-diameter pipe or the like, the extraction head 10 is so large that it is difficult to use and cannot be applied to any buried pipe. In such a case, the conventional configuration must be used, and it still takes time and effort.
[0004]
Then, this invention exists in the point which provides the water extraction apparatus in a pipe | tube which enables observation of a water extraction condition, while being able to guide | invade a water extraction hose while observing the inside of a pipe | tube.
[0005]
[Means for Solving the Problems]
[Characteristic configuration of the present invention]
Characteristic feature of the pipe emergent device of the present invention according to claim 1, the rear of the water inlet portion, provided with visible camera tube, a camera head and a universal camera mounting portion mounting said camera, said water The mouth portion is smaller in diameter than the camera head, and the water suction port portion and the camera head are connected to each other by a flexible water extraction pipe .
[0006]
According to a second aspect of the present invention, there is provided a characteristic configuration of the in-pipe water extraction apparatus according to the first aspect , wherein the flexible extraction pipe and the flexible support linear body are the flexible ones. It is accommodated in the water injection hose, and the flexible support linear body is provided along the flexible extraction pipe .
[0007]
[Operation and effect of feature composition]
According to the characteristic configuration of the in-pipe water extraction apparatus according to the first aspect of the present invention, it can be confirmed that the water intake port is inserted into the water at the water extraction site, and thereafter the state of water extraction at the water intake port is monitored. Water extraction work is possible. That is, the water extraction operation can be performed in one process. More specifically, since the water inlet is arranged in front of the camera mounting portion, the water inlet can also be visually recognized in the visual field for monitoring the inside of the pipe with the camera. If the water reaches the accumulated water to be extracted, and then the water suction device is operated to extract water, the inside of the extraction hose is not empty. In addition, since it is possible to monitor the state in which the accumulated water is sucked from the water suction port, it is possible to perform a water extraction operation without waste.
[0008]
Furthermore, according to the characterizing feature of the tube emergent device according to the invention described in claim 1, accumulated water in front of the bent tube portion which can not pass through the cameras will be able emergent. In other words, for example, when water collected in a small-diameter pipe is extracted, even if there is water accumulated below the falling curved pipe part through which the camera mounting part cannot pass, flexible water is placed in front of the camera mounting part . Since the water suction port portion connected in communication with the bleed pipe hangs down, the water suction port portion can be accumulated and reach the water.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an example of an in-pipe water extraction apparatus according to the present invention will be described with reference to the drawings. FIG. 1 is a configuration explanatory view showing an example of an in-pipe water extraction apparatus according to the present invention, and FIG. 2 is a configuration explanatory view showing an example of the configuration of a water inlet and a camera mounting portion. The same elements as those shown in FIGS. 6 and 7 used in the description of the prior art or elements having the same functions are denoted by the same or related reference numerals, and a part of the detailed description. Is omitted.
[0010]
As shown in FIG. 1, the in-pipe water extraction apparatus is formed with a water suction port portion 1 at which one end of a soft plastic water extraction tube 14, i.e., a front end portion, can suck accumulated water into the water extraction tube 14. The other end, that is, the base end is connected to the water suction device 5 constituted by a suction pump through the camera cable branching portion 6.
[0011]
The suction pump constituting the water suction device 5 is a pneumatic pump diaphragm, and the water suction device 5 includes an air compressor 5a as a drive source.
[0012]
The flexible extraction pipe 14 and the camera cable 7 for connecting the camera 4 and the monitor 8 together with the flexible support linear body 16 are accommodated in a soft plastic tube-shaped covering body 15 to extract water. A hose 2 is formed (see FIG. 3), and a camera attachment portion 3 is provided at the distal end portion of the covering body 15, and a proximal end portion is connected to the camera cable branch portion 6. And the said water extraction pipe | tube 14 is extended to the front of the said camera attachment part 3, and provides the spherical part in the front-end | tip part, and perforates the several suction port 1a in the spherical part, As mentioned above, It is formed in the water inlet 1.
[0013]
As shown in FIG. 2, the camera mounting portion 3 is formed by forming a drain pipe connecting portion 11 made of a hard tube so that the camera 4 can be freely attached, and a small CCD camera 4 </ b> A is attached to the camera mounting portion 3. is there. The camera mounting portion 3 and the camera 4 are covered with a waterproof cover 21 and are watertightly connected to the covering 15 to form the camera head 20. The camera head 20 includes a small floodlight 22 that illuminates the front. Therefore, the extraction hose 2 also accommodates a power cable for the small floodlight 22.
[0014]
With the above configuration, for example, even when the camera head 20 is supported by the curved pipe portion of the pipe P and cannot pass therethrough, the water suction port portion 1 positioned in front of the camera head 20 is more than the camera head 20. Since it has a small diameter and the extraction pipe 14 is flexible, it can pass through the curved pipe portion and reach the accumulated water (see FIG. 4). Moreover, as shown in the drawing, the camera head 20 can extract water without getting wet in front of the accumulated water in a state where the water suction port 1 is visible.
[0015]
The flexible support linear body 16 is used to insert both the water suction port 1 and the camera head 20 into a pipe. The water extraction pipe 14, the camera cable 7, the covering body 15, and the like. In order to make it easier to insert than simply pressing, the wire is made of a wire that is flexible and hard in the length direction. Since the flexible support linear body 16 is placed along the extraction pipe 14 and the camera cable 7, it is possible to cause the flexible support linear body 16 to bear the pushing force, and the pushing force. Is transmitted to the camera head 20 (see FIG. 3).
[0016]
A monitor 8 is provided separately from the extraction hose 2 in order to view the image captured by the CCD camera 4A for monitoring inside the tube. The monitor 8 is connected to a camera cable 7 drawn from the camera cable branching section 6 (see FIG. 1). With this configuration, the operator can monitor and observe the inside of the pipe while maintaining a natural posture even when the extraction hose 2 is extended along with the insertion into the pipe.
[0017]
[Another embodiment]
<1> In the above embodiment, the extraction pipe 14 is described as being made of a soft plastic, but the material thereof is arbitrary, and it is only necessary to have soft flexibility. For example, a flexible tube including a metal bellows may be used. When the extraction pipe 14 is formed of a metal bellows pipe, it has flexibility and has a hardness in the length direction, and therefore the flexible support linear body 16 is provided in the extraction hose 2. Even if not, the water inlet 1 can be sufficiently inserted into the predetermined position together with the camera head 20.
[0018]
<2> In the above-described embodiment, the water suction port portion 1 is formed in the water suction port portion 1 by providing a spherical portion at the distal end portion of the extraction pipe 14 and drilling a plurality of suction ports 1a in the spherical portion. As shown in FIG. 5, for example, as shown in FIG. 5, a plurality of the water intake ports 1 are provided on the leading end side of the water extraction head 10 formed in a hollow oval shape or a hollow oval shape over the entire circumference. A drain pipe connecting portion 11 is provided on the base end side, and a partition wall 12 is provided between the through hole 10a and the drain pipe connecting portion 11 in the drawing head 10, A suction pipe connection hole 12a is formed at the center of the partition wall 12, and a suction pipe 13 made of a short pipe is watertightly connected to the suction pipe connection hole 12a so as to be swingable in the forward direction. Good. If the water suction port 1 is configured in this way, even if the water suction port 1 rotates around its long axis and changes its posture, the suction port 1a at the tip of the suction pipe 13 always moves downward. Since the posture is taken, the suction port 1a can be prevented from floating in the air and emptying.
[0019]
<3> In the above embodiment, an example in which the small CCD camera 4A is attached as the camera 4 to the camera attachment portion 3 is illustrated and described. However, the camera 4 may be another camera, for example, image transmission It may be an image capturing head in which a lens is formed at the tip of an optical fiber bundle for use. In this case, the above-described monitor 8 serves as a screen for imaging the image light transmitted through the optical fiber bundle.
[0020]
<4> In the above embodiment, the example in which the camera mounting portion 3 is provided with the small projection lamp 22 together with the camera 4 is illustrated and described. However, the small projection lamp 22 may be a separate one. Good. That is, you may make it insert an illumination means in the piping P separately.
[0021]
<5> In the above embodiment, an example in which a pneumatic-driven diaphragm pump is used as the suction pump constituting the water suction device 5 has been described. However, any suction pump can be used as a piston pump. Examples thereof include a centrifugal pump, a turbo pump, and an ejector pump. The driving source is not limited to air pressure, and may be hydraulically driven or electrically driven.
[Brief description of the drawings]
FIG. 1 is a structural explanatory diagram showing an example of an in-pipe water extraction apparatus according to the present invention. FIG. 2 is a main part configuration diagram for explaining a main part of the example shown in FIG. Fig. 4 is an explanatory view showing an example of a water extraction state. Fig. 5 is a main portion vertical cross section showing another example of the water extraction head. Fig. 6 is an example of a conventional water extraction head. Fig. 7 is a longitudinal sectional view showing the structure of the conventional pipe drawing device.
DESCRIPTION OF SYMBOLS 1 Water intake part 2 Extraction hose 3 Camera mounting part 4 Water suction device

Claims (2)

A water extraction port for sucking water from the inside of the pipe is attached to one end of the flexible water extraction hose, and the other end is attached to a water suction device for sucking and discharging the water sucked from the water suction port. A device,
A camera head provided with a camera that allows the inside of a tube to be visually observed and a camera mounting portion to which the camera can be attached is provided behind the water suction port portion, the water suction port portion having a smaller diameter than the camera head, and the water suction port An in- pipe extraction apparatus in which a flexible extraction pipe is used for communication between the unit and the camera head . The flexible drain pipe and the flexible support linear body are accommodated in the flexible water injection hose, and the flexible support linear body is connected to the flexible drain pipe. The in-pipe water extraction apparatus according to claim 1, which is provided along the pipe.

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