JP2000002394A - Device for extracting water in pipe - Google Patents

Abstract

PROBLEM TO BE SOLVED: To guide a water extracting hose while observing the inside of a pipe so as to allow observation of a water extracting condition by arranging a camera mounting part, to which a camera allowing a visual check of the pipe inside can be installed freely, in the back of a water suction port part. SOLUTION: A water extracting hose 2 is constructed by housing a flexible water extracting pipe 14 and a camera cable 7 connecting a camera 4 and a monitor 8 together in the inside of a tubular covering body 15 made of soft plastic with a flexible supporting wire body 16, and a camera mounting part 3 is arranged in the tip part of the covering body 15. A water suction port part 1 having a plurality of suction ports 1a is arranged in a spherical part at the tip of the water extracting pipe 14. Therefore, the water suction port part 1 can be also visually checked in a view field for monitoring the inside of the pipe by a camera 4, as the water suction port part 1 is arranged in front of the camera mounting part 3. Consequently, a visual check can be carried out until the water suction port part 1 reaches accumulated water to be extracted when the water extracting hose 2 is inserted, so that the inside of the water extracting hose 2 is prevented from being sucked emptily, and water extraction can be carried out without any waste of work.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an in-pipe water extraction device for extracting accumulated water in a pipe, and more particularly, to an end of a flexible water extraction hose having a water suction port for sucking water from the inside of the pipe. The present invention relates to an in-pipe water extraction device, the other end of which is attached to a water suction device for sucking and discharging water sucked from the water suction port.

[0002]

2. Description of the Related Art Conventionally, in order to extract water in a pipe buried underground, an endoscope camera capable of visually observing the inside of a pipe is first inserted into the pipe, and the inserted camera collects in the pipe. After confirming the position of the collected water and pulling out the camera from the inside of the pipe, a water extraction hose was inserted into the pipe, and when the water extraction head at the tip thereof reached the above-described position of the accumulated water, the water was discharged. The inside of the water extraction hose is sucked by a suction device, and the accumulated water in the pipe is sucked and discharged. For this purpose, the camera was provided separately from the water hose.

[0003]

In the above-mentioned conventional structure, the operation of confirming the position of the pool water to be extracted in the pipe and the operation of inserting the water extraction hose into the pipe up to the confirmed location of the pool water are described. The operation of extracting water by the suction device had to be performed separately, and the situation in the pipe after the extraction of water had to be reconfirmed. For this purpose, both operations have to be repeated. In order to cope with this, the applicant has previously proposed an in-pipe water extraction device which allows a water extraction hose to be inserted at the same time as checking the position of water accumulated in the pipe, as shown in FIG. Yes (Jpn.
No. 2). That is, in the above proposed in-pipe water extraction device, the camera head 20 is attached to the tip of the water extraction head 10 as shown in FIG. Therefore, the water extraction hose 2 is inserted into the pipe, the water extraction head 10 is inserted to the water extraction location L, that is, the location of the pool water W, and the pool water W is sucked at the suction port 1a of the water suction port 1. Can be performed without any trouble because the inside of the tube is visually observed by the camera provided in the camera head 20. However,
In the above proposal, since the purpose was to determine the insertion position when inserting the water extraction hose, the state of the accumulated water can be visually recognized from the state in front of the water extraction head 10, so that the water extraction head 10 It was not considered necessary to monitor the state of water extraction, that is, the state of suction at the suction port 1a. In addition, since the camera head 20 is provided, when the camera head 20 does not reach the pool water, the water extraction head 10 is located in front of the head and the water cannot be extracted, so that the camera head 20 is immersed in the pool water. In some cases, maintenance is troublesome, and in the case of a small-diameter pipe or the like, it is difficult to use the water-drawing head 10 due to the large size of the water-drawing head 10, and it is not applicable to any buried pipe. In such a case, the above-described conventional configuration must be used, which still requires time and effort.

Accordingly, an object of the present invention is to provide an in-pipe water extraction apparatus that can guide a water extraction hose while observing the inside of a pipe, and also enables observation of a water extraction state.

[0005]

Means for Solving the Problems [Characteristic structure of the present invention] The characteristic structure of the in-pipe water extraction device according to the first aspect of the present invention is that a camera capable of visually observing the inside of the pipe can be attached behind the water inlet. The point is that an attachment portion is provided.

According to a second aspect of the present invention, there is provided an in-pipe water extraction device according to the first aspect of the present invention, wherein a flexible pipe is used to communicate between the camera mounting portion and the water suction port in the in-pipe water extraction device according to the first aspect. At the point where they are connected.

[Function and Effect of Characteristic Configuration] The above-mentioned claim 1
According to the characteristic configuration of the in-pipe water extraction device according to the invention described in the above, it is possible to confirm that the water suction port is inserted into the water at the water extraction place, and thereafter, the water extraction operation is performed while monitoring the state of water extraction at the water suction port. it can. That is, the water extraction operation can be performed in one step. More specifically, since the water inlet is disposed in front of the camera mounting portion, the water inlet can be visually recognized in the field of view for monitoring the inside of the pipe with a camera. Can be confirmed up to the point where the water reaches the pool water to be extracted, and then the water suction device is operated to extract water, so that the inside of the extraction hose is not pulled out. In addition, since the state in which the accumulated water is being sucked from the water inlet can be monitored, it is possible to perform a water extraction operation without waste.

According to the characteristic structure of the in-pipe water extracting device according to the second aspect of the present invention, in addition to the operation and effect of the characteristic structure according to the first aspect, the accumulated water in front of the curved pipe portion through which the camera cannot pass. Will be able to extract water. In other words, for example, in the case of extracting the pooled water in the small-diameter pipe, even if there is pooled water below the falling curved pipe section that cannot pass through the camera mounting section, a flexible pipe is provided in front of the camera mounting section. Because the water-absorbing port that is connected with the connection hangs down,
It becomes possible to make the said water inlet port accumulate and reach water.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an example of an in-pipe water extraction device according to the present invention will be described with reference to the drawings. FIG. 1 is a structural explanatory view showing an example of the in-pipe water extraction device according to the present invention, and FIG. 2 is a structural explanatory view showing an example of the structure of a water suction port and a camera mounting portion. Elements that perform the same or similar functions as those shown in FIGS. 6 and 7 used in the description of the above-described conventional technology are given the same or related reference numerals, and a part of the detailed description. Is omitted.

As shown in FIG. 1, the in-pipe water extraction device is provided at one end of a soft plastic water extraction pipe 14, that is, at a tip end thereof.
A water suction port 1 capable of freely sucking accumulated water is formed in the water extraction pipe 14, and the other end, that is, a base end, is connected to a camera cable branching section 6, and is provided with a water suction device 5 constituted by a suction pump.
Connected to

As the suction pump constituting the water suction device 5, an air pressure driven diaphragm pump is used, and the water suction device 5 is provided with an air compressor 5a as a driving source.

The flexible drain pipe 14 and the camera cable 7 for connecting the camera 4 and the monitor 8 together with the flexible supporting linear body 16 are placed in a soft plastic tubular covering 15. The water extraction hose 2 is formed in the housing (see FIG. 3). A camera mounting portion 3 is provided at a distal end portion of the covering body 15, and a base end portion is connected to the camera cable branch portion 6. Then, the drain pipe 14 extends to the front of the camera mounting section 3, a spherical section is provided at the tip thereof, and a plurality of suction ports 1 a are perforated in the spherical section, and as described above, It is formed in the water inlet 1.

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 thereto, and the camera mounting portion 3 has a small CCD camera 4A. Is attached. A waterproof cover 21 is provided on the entire camera mounting portion 3 and the camera 4.
And is watertightly connected to the cover 15 to form a camera head 20. The camera head 20 is provided with a small floodlight lamp 22 for illuminating the front. Therefore, the small-size floodlight 22 is connected to the water extraction hose 2.
Power cable is also housed.

With the above arrangement, 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 1 located in front of the camera head 20 can be connected to the camera head 20 by the camera head 20. Smaller in diameter than 20,
Since the water extraction pipe 14 is flexible, it can pass through the bent pipe section 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 while the extraction head 10 is visible.

The flexible supporting linear member 16 is used to insert both the water suction port 1 and the camera head 20 into a pipe. In order to make it easier to insert the body 15 than to simply push it, it is made of a wire which is flexible but hard in the length direction. Since the flexible supporting linear body 16 is arranged along the water extraction pipe 14 and the camera cable 7, the pushing force can be applied to the flexible supporting linear body 16. Is transmitted to the camera head 20 (see FIG. 3).

CCD camera 4A for monitoring the inside of the pipe
A monitor 8 is provided separately from the water extraction hose 2 in order to view the image taken by the user. The monitor 8 is connected to the camera cable 7 drawn from the camera cable branch 6 (see FIG. 1). With this configuration, the worker can monitor and observe the inside of the pipe while maintaining a natural posture even when the water extraction hose 2 is extended along with the insertion into the pipe.

[Alternative Embodiment] <1> In the above-described embodiment, the water extraction pipe 14 has been described as being made of a soft plastic. Good. For example,
It may be a flexible tube with a metal bellows. Bleed pipe 14
Is formed with a metal bellows tube, since it has flexibility and has hardness in the length direction, the flexible supporting linear body 16 is not provided in the water extraction hose 2. However, the water inlet 1 can be sufficiently inserted together with the camera head 20 to a predetermined position.

<2> In the above embodiment, the water suction port 1 is provided with a spherical portion at the tip of the water extraction pipe 14, and a plurality of suction ports 1a are pierced in the spherical portion, and the water suction port 1 is formed. Although the illustrated example has been described, the water-absorbing port 1 is provided with a water extraction head 10 formed in a hollow oval or hollow ellipsoidal sphere, for example, as shown in FIG. A plurality of through-holes 10a are formed around the circumference, and a drainage pipe connection part 11 is provided on the base end side, and a partition wall 12 is provided between the through-hole 10a in the water extraction head 10 and the water extraction pipe connection part 11. The suction pipe connection hole 12a is formed in the center of the partition wall 12, and the suction pipe 13 formed of a short pipe is water-tightly connected to the suction pipe connection hole 12a so as to swing forward. There may be. If the water suction port 1 is configured in this manner, even if the water suction port 1 rotates around its long axis and changes its posture, the suction port 1a at the distal end of the suction pipe 13 always faces downward. As a result, the suction port 1a can be prevented from floating in the air and pulling out.

<3> In the above embodiment, an example in which the small CCD camera 4A is attached to the camera attachment portion 3 as the camera 4 is shown and described. However, the camera 4 may be another camera. Alternatively, an image capturing head in which a lens is formed at the tip of an optical fiber bundle for image transmission may be used. In this case, the aforementioned monitor 8
Is a screen for forming an image of the image light transmitted through the optical fiber bundle.

<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.
2 may be separate. That is, the illumination means may be separately inserted into the pipe P.

<5> In the above embodiment, an example was described in which a pneumatically driven diaphragm pump was used as the suction pump constituting the water suction device 5, but any suction pump can be used. , A piston pump, a centrifugal pump, a turbo pump, an ejector pump, and the like. The drive source is not limited to air pressure, and may be hydraulically driven or electrically driven.

[Brief description of the drawings]

FIG. 1 is a configuration explanatory view showing an example of an in-pipe water extraction device according to the present invention.

FIG. 2 is a main part configuration diagram for explaining main parts of the example shown in FIG. 1;

FIG. 3 is a cross-sectional view of a main part illustrating a configuration example of the water extraction hose shown in FIG. 1;

FIG. 4 is an explanatory diagram showing an example of a water extraction state.

FIG. 5 is a vertical sectional view of a main part showing another example of the water extraction head.

FIG. 6 is a longitudinal sectional view showing an example of a conventional water extraction head.

FIG. 7 is a configuration explanatory view showing an example of use of a conventional in-pipe water extraction device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Water suction port 2 Water extraction hose 3 Camera mounting part 4 Water suction device

Claims (2)

[Claims] 1. A water suction device for suctioning water from inside a pipe is attached to one end of a flexible water extraction hose, and the other end is connected to a water suction device for sucking and discharging the water sucked from the water suction port. An in-pipe water extraction device, wherein an in-pipe water extraction device is provided, and a camera attachment portion to which a camera capable of visually observing the inside of the pipe can be attached is provided behind the water suction port. 2. The in-pipe water extraction device according to claim 1, wherein the camera mounting section and the water suction port are connected to each other by a flexible pipe.