JP5024612B2 - Airtight holding type movable wiring device - Google Patents

Description

  In the present invention, a linear member such as a power cable or a fiber cable, which is provided by being inserted from the outside into a through hole formed in the outer body, is maintained in the isolation area partitioned by the outer body, and the airtightness of the isolated area is maintained. The present invention relates to an airtight holding type movable wiring device for installation in a state where it can be pulled into the isolation area from the outside and pulled out from the isolation area to the outside.

  Conventionally, for example, the removal work of asbestos, which is a toxic substance and has high scattering properties, is performed in an isolated space (work chamber, isolation area) so that asbestos does not scatter in the external environment. At this time, for example, the inside air of the work chamber is sucked using a dust collector, for example, asbestos (dust) scattered in the work chamber is collected and the inside is kept in a negative pressure state, and the asbestos to the outside (outside) is collected. Is reliably prevented (see, for example, FIG. 9 of Patent Document 1 and Patent Document 2).

On the other hand, in such asbestos removal work, for example, devices such as a monitoring camera and a high-pressure water jet device (water jet) for stripping off asbestos are installed in the work chamber. And at this time, cables (power supply cables, fiber cables, etc.) and wiring (linear members) such as supply hoses for supplying high-pressure water to the ejection nozzle are formed on the wall (outer body) of the work chamber. Are inserted into the holes (through holes) and drawn into the work chamber from the outside to be connected to the devices (see, for example, FIG. 2 of Patent Document 2).
JP 2002-121906 A JP-A-8-28026

  However, in order to draw wiring such as cables and hoses into the working chamber, the through hole formed in the wall of the working chamber is made the minimum size necessary, and the gap with the inserted wiring is filled with sealing material etc. However, the airtightness in the working chamber is likely to be reduced, and in particular, in a working chamber that handles asbestos (hazardous substances), there is a risk that asbestos leaks to the outside from this through hole.

  Also, when removing asbestos, high-pressure water jets and surveillance cameras are used while moving in the work room. Therefore, wiring such as power cables and high-pressure water supply hoses connected to this type of mobile equipment is required. Depending on the situation, it is necessary to draw into the working chamber from the outside or to pull out from the working chamber to the outside. For this reason, wiring is movably inserted into the through hole, and the risk of internal air leaking from the through hole to the outside increases.

  In view of the above circumstances, the present invention draws the wiring (linear member) drawn from the outside into the isolation area where airtightness needs to be secured, and draws and isolates the isolation area from the outside while maintaining the airtightness of the isolation area. An object of the present invention is to provide an airtight holding type movable wiring device that can be freely pulled out from an area.

  In order to achieve the above object, the present invention provides the following means.

The airtight holding type movable wiring device of the present invention maintains the airtightness of the isolation area by providing a linear member inserted into the isolation area partitioned by the outer body through the through hole formed in the outer body from the outside. In this state, an airtight holding type movable wiring device for being installed so as to be retractable from the outside into the isolation area and pulled out from the isolation area to the outside, with one end connected to the through hole and the An insertion path that communicates with the isolation area and that opens at the other end and communicates with the outside and through which the linear member outside the outer body extends from the one end to the outside through the other end is provided. In addition, the insertion path is provided with a water-sealed trap that blocks the insertion path with water and prevents the air in the isolation area from circulating to the outside, and the water-sealed trap is water that contains the water. Sealed tiger A main body, a partition plate that divides the interior of the water seal trap body into one chamber and another chamber, a communication port that is formed below the water surface of the water and communicates the one chamber with the other chamber, A first through-hole and a second through-hole formed through the water-sealed trap main body above the water surface and in the one chamber side and the other chamber side, respectively, and a water level for confirming the water level The first through hole formed on the one chamber side is connected to the through hole through a pipe member .
In the present invention, “the state in which the airtightness of the isolation area is maintained” is not limited to the state where there is no air flow between the isolation area and the outside, and the isolation is performed while the air is distributed between the isolation area and the outside. This includes a state where the area is held at a negative pressure with respect to the outside.

  In the present invention, the isolation area and the outside communicate with each other through an insertion path whose one end is connected to the through hole and the other end opens to the outside, and the linear member is continuously connected from the isolation area to the outside by being inserted through the insertion path. By moving the linear member along the insertion path, drawing from the outside to the isolation area and drawing from the isolation area to the outside can be performed. At this time, a water-sealed trap is provided in the insertion path, and a part of the insertion path is blocked by the water of the water-sealed trap, so that the linear member is installed to be movable through the water. On the other hand, the air in the isolation area is not circulated to the outside by water, and the linear member can be installed so as to be able to be pulled in and pulled out in a state in which the airtightness of the isolation area is reliably maintained.

Further , the isolation area communicates with the inside of the pipe member through the through hole, the inside of the pipe member communicates with one chamber of the water seal trap through the first through-hole, and this one chamber communicates with the other chamber through the communication port, Furthermore, the other chamber communicates with the outside through the second through-hole, and an insertion path for inserting the linear member is formed. Since the communication port is formed below the water surface, part of the insertion path is blocked by water, and the air in the isolation area led out from the through hole to the inside of the pipe member is the water contained in one chamber. Is blocked at the water surface. Thereby, it becomes possible to install the linear member so that it can be pulled in and pulled out in a state in which the airtightness of the isolation area is securely maintained without the air in the isolation area circulating outside.
Furthermore, when the isolation area is a work room for removing asbestos, for example, the isolation area is brought into a negative pressure state with respect to the outside, and the water level of the water seal trap is determined according to the magnitude of the negative pressure. Changes. That is, the range from one end connected to the through hole of the insertion path to the water surface of the water-sealed trap communicates with the isolation area, and since air in the isolation area is introduced, the isolation area is in a negative pressure state, The water surface moves to the isolation area according to the magnitude of this negative pressure. For this reason, for example, the water-sealed trap is formed with a transparent member (water level confirmation means) such as acrylic or glass so that the water (water surface) contained in the water-sealed trap can be seen from the outside (external), In addition, the transparent member is provided with a scale (water level confirmation means) for measuring the position (water level) of the water surface or a sensor (water level confirmation means) for measuring the water level, thereby reducing the negative pressure state in the isolation area. It becomes possible to manage. As a result, it is possible to reliably prevent harmful substances such as asbestos from leaking to the outside and perform the work safely.

  Furthermore, in the hermetic holding type movable wiring device of the present invention, the water sealing trap may be provided with ultrasonic oscillation means for oscillating ultrasonic waves in the water.

  In the present invention, the linear member disposed in the water in the water-sealed trap can be cleaned by oscillating ultrasonic waves into the water by the ultrasonic oscillating means. As a result, for example, even when harmful substances such as asbestos are handled in the isolation area and the harmful substances are attached to the linear members drawn from the isolation area, the harmful substances are surely passed through the water seal trap. It is possible to remove the linear member that has been cleaned from the insertion path. Therefore, it is possible to reliably prevent harmful substances from leaking outside.

  According to the hermetic holding type movable wiring device of the present invention, the linear member drawn from the outside into the isolation area where the airtightness needs to be secured can be reliably transferred from the outside to the isolation area while maintaining the airtightness of the isolation area. It can be installed so that it can be pulled out from the pull-in and isolation area. Thereby, for example, even when the asbestos removal operation is performed in the isolation area, it is possible to reliably prevent the asbestos from leaking from the through hole.

  Hereinafter, with reference to FIG.1 and FIG.2, the airtight holding type | mold movable wiring apparatus which concerns on one Embodiment of this invention is demonstrated. In the present embodiment, a power cable, a high-pressure water supply hose, and the like are drawn in from outside and connected to a moving device such as a high-pressure water jetting device or a surveillance camera disposed in a work chamber that performs asbestos removal work. The present invention relates to an airtight holding type movable wiring device. In the present embodiment, description will be made assuming that the wiring (linear member) is a power cable.

  First, as shown in FIG. 1, the working chamber 1 of the present embodiment isolates (divides) the inside (isolation area 3) from the outside 4 by a wall, ceiling, or the like (outer body 2), thereby improving airtightness. It is formed to hold. In addition, the working chamber 1 is provided with a dust collector (not shown). The dust collector sucks the internal air, collects the asbestos (dust) scattered in the interior 3, and the interior 3 is in a negative pressure state with respect to the exterior 4. It is configured to prevent leakage of asbestos to the outside 4 by being held at the top. Further, a through hole 5 is formed through the wall 2 of the work chamber 1, and a wire (linear member 6) is drawn from the outside 4 into the inside 3 of the work chamber 1 through the through hole 5. It is connected to a moving device 7 such as a high-pressure water jetting device or a monitoring camera arranged in the interior 3 of the chamber 1.

  Here, a power supply connection portion is provided inside the wall 2 of the work chamber 1, and a power supply cable 6 connected to the mobile device 7 is connected to the power supply connection portion provided in this manner, so that a through hole 5 for the power supply cable is provided. It is possible to make it unnecessary. However, when the asbestos removal operation is performed in the interior 3 of the work chamber 1 as in this embodiment, a large amount of water is used in a high-pressure water jetting device, which increases the risk of electric leakage. End up. For this reason, conventionally, in the work chamber 1 where asbestos removal work is performed, as shown in FIG. 1, the power cable 6 connected to the mobile device 7 is connected to the outside 4 from the through-hole 5 formed in the wall 2 of the work chamber 1. It is extended and connected to the power supply connection part 8 of the external 4 so as to prevent the occurrence of electric leakage.

  As shown in FIGS. 1 and 2, the hermetic holding type movable wiring apparatus A of the present embodiment is connected to the through hole 5 formed in the wall 2 of the work chamber 1 at one end 10 a side, and is connected to the outside 4 of the work chamber 1. An extended duct (tube member 10) and a water seal trap 11 connected to the other end of the duct 10 are provided.

  The duct 10 is a bellows duct, and is attached by fixing the flange 10b provided on the one end 10a side to the wall surface of the work chamber 1, and in such a state that the one end 10a is attached to the wall surface of the work chamber 1, 5 communicates with the interior 3 of the working chamber 1. At this time, the duct 10 is attached to the working chamber from between the flange 10b and the wall surface of the working chamber 1 by applying a curing tape or applying a sealing material to the flange 10b or the wall surface to which the flange 10b is attached. 1 internal air is provided so as not to leak to the outside 4.

  On the other hand, the water-sealed trap 11 of the present embodiment is formed in a rectangular box shape, and a water-sealed trap body 12 that contains water W in its interior 12a, and the interior 12a of this water-sealed trap body 12 is divided into a chamber 12b and others. And a partition plate 13 that is partitioned into two chambers 12c.

  The partition plate 13 is provided substantially in the center in the width direction of the water seal trap body 12, a pair of sides on which the upper end is disposed on the inner surface of the upper portion of the water seal trap body 12, and both side ends are opposed to the water seal trap body 12. It connects with the inner surface of the part, and is extended in the up-down direction. Further, at this time, the lower end of the partition plate 13 is disposed above the bottom surface of the water seal trap body 12, and the chamber 12 b and others are separated by a gap between the lower end of the partition plate 13 and the bottom surface of the water seal trap body 12. A communication port 14 for communicating the chamber 12c is formed. And this communication port 14 is formed so that it may always be located below the water surfaces W1 and W2 of the water W accommodated in the one chamber 12b and the other chamber 12c of the water seal trap body 12.

  Further, the water seal trap main body 12 has a first through hole 15 and a second through hole 16 at the upper part of the water seal trap main body 12 so as to be always above the water levels W1 and W2 of the water W stored. The first through-hole 15 is formed on the one chamber 12b side, the second through-hole 16 is formed on the other chamber 12c side, and the outside 4 and the inside 12a of the water-sealed trap body 12 (one chamber 12b, another chamber 12c). Are formed so as to pass through.

  Further, the water seal trap main body 12 is formed at least on the side using a transparent member (water level confirmation means) such as acrylic or glass, and from the outside 4 to the inside 12a of the one chamber 12b and the other chamber 12c. It is formed so that the water surfaces W1 and W2 of the water W accommodated can be seen. Further, in order to measure the water level of the water W in each of the interiors 12a of the one chamber 12b and the other chamber 12c (confirm the positions of the water surfaces W1 and W2), a scale (water level confirmation means) is provided on the side portion. In addition, it is possible to make it easy to check the water levels by floating the water W in the one chamber 12b and the other chamber 12c. Further, the water level confirmation means may be a water level sensor.

  The water seal trap body 12 (water seal trap 11) is provided by connecting the other end of the duct 10 to the first through-hole 15. As a result, the interior 3 of the work chamber 1 communicates with the interior of the duct 10 through the through-hole 5, and the interior of the duct 10 communicates with the one chamber 12 b of the water seal trap body 12 through the first through-hole 15. 12 b communicates with the other chamber 12 c through the communication port 14, and the other chamber 12 b communicates with the outside 4 through the second through port 16. In this way, a series of insertion paths is formed in which one end 10 a communicates with the interior 3 of the work chamber 1 and the other end (second through-hole 16) opens to communicate with the exterior 4.

  Further, the water seal trap 11 is provided with a first pulley 17 that is provided at the lower end side of the partition plate 13 with a rotation axis in the horizontal direction along the partition plate 13 and supported rotatably around the rotation axis. Yes. The first pulley 17 is supported by the partition plate 13 such that the lower end thereof is disposed between the lower end of the partition plate 13 and the bottom surface of the water seal trap body 12, that is, between the communication port 14. Further, a second pulley 18 having a rotation axis parallel to the rotation axis of the first pulley 17 is provided near the second through-hole 16. The second pulley 18 has a lower end connected to the upper part of the water seal trap body 12 and is supported by a support member extending upward. It is provided rotatably.

  Further, the water-sealed trap 11 of the present embodiment is provided with ultrasonic oscillation means 20 that oscillates ultrasonic waves in the water W, and vibrates by an electric signal sent from the ultrasonic oscillator 20a of the external 4 to emit ultrasonic waves. The vibrator 20 b is disposed in the interior 12 a on the side of the chamber 12 b of the water seal trap body 12.

  Further, the wiring 6 that is drawn into the interior 3 of the work chamber 1 from the outside 4 through the through-hole 5 formed in the wall 2 of the work chamber 1 and is connected to the mobile device 7 is wound around the wiring drum 21 arranged in the exterior 4. It is provided by turning. The wiring drum 21 is configured to feed the wiring 6 and rewind the fed wiring 6 by forward and reverse rotation. Further, in this embodiment, the power supply connecting portion 8 is provided in the wiring drum 21, and power is supplied from the wiring 6 to the mobile device 7 by connecting an external power source to the power connecting portion 8. By providing the power supply connection portion 8 in the outside 4 of the work chamber 1 as described above, even when a large amount of water is used in the inside 3 of the work chamber 1, the occurrence of electric leakage is reliably prevented.

  In the airtight holding type movable wiring device A of the present embodiment configured as described above, the wiring 6 sent out from the wiring drum 21 is wound around the second pulley 18 of the water seal trap 11 and the second through hole 16. Is extended to the other chamber 12c, is wound around the first pulley 17 and extends to the one chamber 12b through the communication port 14, and is installed in the interior 3 of the work chamber 1 through the first through port 15 and the duct 10. . One end of the wiring 6 arranged in the interior 3 of the work chamber 1 is connected to the mobile device 7. That is, the wiring 6 drawn out from the through hole 5 formed in the wall 2 of the working chamber 1 to the outside 4 is inserted along the insertion path of the hermetic holding movable wiring device A. At this time, the water seal trap 11 It extends to the outside 4 through the water W accommodated in the water.

  Next, operations and effects of the airtight holding type movable wiring device A of the present embodiment configured as described above will be described.

  First, the internal air of the working chamber 1 that performs asbestos removal work is inserted through the through hole 5 of the wall 2 toward the second through-hole 16 of the water seal trap 11 that opens from the inside of the duct 10 to the outside 4. To be derived. At this time, since the communication port 14 forming the insertion path is formed below the water surfaces W1 and W2 of the water W accommodated in the water-sealed trap body 12, a part of the insertion path is blocked by the water W. . For this reason, the internal air of the working chamber 1 led out to the inside of the duct 10 from the through-hole 5 is blocked by the water surface W1 of the water W accommodated in the one chamber 12b. Distribution to the outside 4 through the second through-hole 16 is prevented. As a result, even when the through-hole 5 is formed in the wall 2 of the work chamber 1, leakage of the internal air of the work chamber 1 and the asbestos scattered in the interior 3 of the work chamber 1 to the outside 4 is reliably prevented. Thus, the airtightness of the interior 3 of the working chamber 1 is always reliably maintained.

  Further, the internal air of the working chamber 1 is sucked by a dust collector, the inside 3 is brought into a negative pressure state with respect to the outside 4, and the water level of the water W accommodated in the water-sealed trap 11 according to the magnitude of the negative pressure. Changes. That is, the range from the one end 10a connected to the through-hole 5 of the insertion path to the water surface W1 of the water W accommodated in the one chamber 12b of the water-sealed trap 11 communicates with the interior 3 of the work chamber 1 and the internal air is introduced. Therefore, the working chamber 1 is brought into a negative pressure state, the water W in the other chamber 12c flows into the one chamber 12b from the communication port 14, the water surface W1 in the one chamber 12b rises, and the water surface in the other chamber 12c rises. W2 goes down. The negative pressure in the interior 3 of the work chamber 1 is maintained at a desired pressure, and the water W in the one chamber 12b and the water W in the other chamber 12c are each stabilized at a predetermined water level. At this time, in this embodiment, the water-seal trap body 12 is formed using a transparent member (water level confirmation unit), and a scale (water level confirmation unit) is provided on the transparent member. As a result, the water level W1 in the one chamber 12b and the other chamber 12c is confirmed from the outside 4 by looking at the water surfaces W1 and W2 of the one chamber 12b and the other chamber 12c. The size can be grasped, and the negative pressure in the work chamber 1 can be managed.

  Next, when the work chamber 1 is brought into a predetermined negative pressure state in this manner, asbestos removal work is started, and when the moving device 7 is moved so as to draw the wiring 6 into the interior 3 of the work chamber 1, As the mobile device 7 moves, the wiring 6 is pulled, the wiring drum 21 rotates, and the wiring 6 is sent out from the wiring drum 21. And while sending out the wiring 6 from the wiring drum 21 in this way, the wiring 6 is sent into the other chamber 12c of the water seal trap 11 from the 2nd through-hole 16 by rotation of the 2nd pulley 18, and in the other chamber 12c. Inserted into the water W. Further, by rotation of the first pulley 17 supported by the partition plate 13, the first pulley 17 is sent into the one chamber 12 b from the communication port 14, drawn out from the water W in the one chamber 12 b, and from the first through port 15 through the duct 10. It is drawn into the interior 3 of the work chamber 1. Thus, when drawing the wiring 6 from the outside 4 to the inside 3 of the work chamber 1, in this embodiment, a water-sealed trap 11 that closes a part of the insertion path and blocks the internal air of the work chamber 1. Since the wiring 6 moves in the water W, the wiring 6 is drawn from the outside 4 to the inside 3 of the working chamber 1 while the airtightness of the working chamber 1 is reliably maintained.

  On the other hand, when the mobile device 7 is moved and the wiring 6 is pulled out from the work chamber 1 to the outside 4, the wiring drum 21 is rotated along with the movement of the mobile device 7 to rewind the wiring 6. In this case, contrary to the case where the wiring 6 is drawn into the interior 3 of the work chamber 1 from the outside 4, the other chamber passes from the inside of the duct 10 into the water W of one chamber 12b of the water seal trap 11. 12c and is drawn out from the second through-hole 16 to the outside 4. Thus, the state in which the airtightness of the work chamber 1 is reliably maintained by moving the wiring 6 in the water W of the water-sealed trap 11 blocking the internal air of the work chamber 1 along the insertion path. Thus, the wiring 6 is pulled out from the inside 3 to the outside 4 of the work chamber 1.

  Here, when the wiring 6 is pulled out from the work chamber 1 to the outside 4, there is a possibility that the asbestos scattered in the inside 3 of the work chamber 1 is attached to the wiring 6. Pulling out to the outside 4 may cause asbestos to leak to the outside 4.

  On the other hand, since the water-sealed trap 11 of the present embodiment is provided with ultrasonic oscillating means 20 for oscillating ultrasonic waves in the water W, asbestos adheres to the wiring 6 drawn out from the inside 3 of the work chamber 1. Even in such a case, the asbestos is surely removed by passing through the water W of the water-sealed trap 11 and being cleaned by ultrasonic waves. Will be drawn to. Thereby, the leakage of asbestos to the outside 4 is reliably prevented. Note that when the wiring 6 simply passes through the water W of the water-sealed trap 11 and the attached asbestos can be removed, the ultrasonic oscillating means 20 may not be provided.

  Therefore, in the hermetic holding type movable wiring device A of the present embodiment, the inside 3 and the outside 4 of the work chamber 1 communicate with each other through an insertion path having one end connected to the through hole 5 and the other end opened to the outside 4. The wiring 6 can be continuously arranged from the inside 3 of the work chamber 1 to the outside 4 by being inserted into the insertion path, and by moving the wiring 6 along the insertion path, the wiring 4 can be transferred from the outside 4 to the inside 3. It is possible to freely draw and pull from the inside 3 to the outside 4. At this time, the water sealing trap 11 is provided in the insertion path, and a part of the insertion path is blocked by the water W. Therefore, the work chamber is connected to the wiring 6 that can freely move through the water W. The internal air 1 is blocked by the water W. As a result, it is possible to install the wiring 6 so that it can be pulled in and pulled out in a state in which the airtightness of the work chamber 1 is securely maintained. Therefore, even when the through hole 5 is formed in the wall 2 of the working chamber 1 where the asbestos removal work is performed, the asbestos can be reliably prevented from leaking to the outside 4 from the through hole 5.

  Further, since the ultrasonic oscillation means 20 is provided in the water-sealed trap 11, even when asbestos is attached to the wiring 6 drawn out from the working chamber 1, the water-sealed trap 11 passes through and reliably. Asbestos can be removed, and the cleaned wiring 6 can be pulled out from the insertion path to the outside 4. Thereby, it can prevent more reliably that asbestos leaks to the exterior 4.

  Furthermore, by providing a water level confirmation means (transparent member, scale, sensor) for confirming the water level of the water W stored in the water seal trap 11, the inside 3 of the working chamber 1 is brought into a negative pressure state. The water level of the water W in the water-sealed trap 11 that changes according to the magnitude of this negative pressure can be easily confirmed. As a result, the hermetic movable movable wiring device A of the present embodiment can be applied to the negative pressure management of the work chamber 1.

  As mentioned above, although one embodiment of the airtight holding type movable wiring device according to the present invention has been described, the present invention is not limited to the above-mentioned one embodiment, and can be appropriately changed without departing from the gist thereof. For example, in the present embodiment, the wiring (linear member) 6 that is drawn from the outside 4 to the inside (isolation area) 3 of the work chamber 1 is described as being a power cable. The type movable wiring device is inserted into the through hole 5 of the outer body 2 that partitions the isolation area 3 such as a fiber cable or a supply hose of a high-pressure water jetting device, and is drawn into the isolation area 3 from the outside 4 If it is a linear member which requires, it can apply, without limiting the linear member 6 in particular.

  In the present embodiment, the isolation area is described as the work chamber 1 (the inside 3 of the work chamber 1) in which asbestos is removed. However, the present invention is isolated from the outside 4 and is airtight. As long as it is an isolation area that is required to maintain its properties, it can be applied without being limited to the working room 1 that handles harmful substances such as asbestos.

It is a figure which shows the state which installed the airtight holding | maintenance movable wiring apparatus which concerns on one Embodiment of this invention in the working chamber (outer body). It is an enlarged view of the airtight holding type movable wiring device shown in FIG.

Explanation of symbols

1 Work room 2 Wall (outer body)
3 Inside the work room (isolation area)
4 External 5 Wire hole 6 Wiring (Linear member)
7 Mobile equipment 8 Power connection 10 Duct (tube member)
10a one end 11 water seal trap 12 water seal trap body 12a inside 12b one chamber 12c other chamber 13 partition plate 14 communication port 15 first through port 16 second through port (other end)
17 First pulley 18 Second pulley 20 Ultrasonic oscillating means 20a Ultrasonic oscillator 20b Vibrator 21 Wiring drum A Airtight holding type movable wiring device W Water W1 Water surface W2 Water surface

Claims (3)

A linear member inserted into the isolation area partitioned by the outer body from the outside through a through-hole formed in the outer body is provided from the outside to the isolation area while maintaining the airtightness of the isolation area. A hermetic holding type movable wiring device for installation in such a manner that it can be pulled in and pulled out from the isolation area to the outside,
One end is connected to the wire hole and communicates with the isolation area, and the other end opens and communicates with the outside, and the linear member outside the outer body passes from the one end to the outside through the other end. With an insertion path that extends so as to extend,
The insertion path is provided with a water seal trap that blocks the insertion path with water and prevents the air in the isolation area from circulating to the outside .
The water seal trap is formed below the water surface with a water seal trap main body that contains the water, a partition plate that divides the inside of the water seal trap main body into one chamber and another chamber, and the water seal trap. A communication port that communicates the chamber with the other chamber, and a first through-hole and a second through-portion that are formed through the water-sealed trap main body above the water surface of the water and on the one chamber side and the other chamber side, respectively. And a water level confirmation means for confirming the water level of the water, wherein the first through-hole formed in the one-chamber side is connected to the through hole through a pipe member. Airtight holding type movable wiring device. In the airtight holding type movable wiring device according to claim 1,
An airtight holding type movable wiring device , wherein the water level confirmation means is formed by forming at least a side portion of the water seal trap body from a transparent member . In the airtight holding type movable wiring device according to claim 1 or 2,
An airtight holding type movable wiring device, wherein the water sealing trap is provided with ultrasonic oscillating means for oscillating ultrasonic waves in the water.

Images