JP2006006029A - Cable connecting chamber - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cable connecting chamber that can easily perform the connection of terminals of part cables irrespective of the position of a tank. <P>SOLUTION: The cable connecting chamber 1 connects the terminals A1, A2, B1 or the like of the part cables A, B, C or the like that are dividedly stored in a plurality of storage vessels 62a, 62b in a prescribed working atmosphere in order to lay a long-length cable on the seabed or the like. In the cable connecting chamber, rails 2a, 2b are laid in vicinities of the plurality of storage vessels 62a, 62b, and a connecting chamber body 3 is movably arranged on the laid rails 2a, 2b in conformity with terminal positions of the part cables A, B, C or the like that should be connected. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a cable connection chamber used when laying a cable having a long overall length, particularly a submarine cable.

  Submarine cables are used to connect the landing points that are far apart via the sea, but if the distance between the landing points is long, it is difficult to cover with a single cable. For this reason, for example, as shown in FIG. 5, in order to install a long submarine cable 51 between landing points g1 and g2, a plurality of parts cables C1, C2,. In many cases, the landing terminals 52 and 53 are connected by connecting them at the connecting portions J1, J2,.

  However, until the completed part cables C1, C2,... Cn + 1 are shipped and shipped, it is extremely difficult to store them in a drum or turntable in a state where all of them are connected.

  Therefore, a method is adopted in which only the part cables C1, C2,... Cn + 1 before connection are manufactured in advance and stored in a dedicated storage container (tank), and then the part cables C1, C2,. At this time, both ends of each of the part cables C1, C2,... Cn + 1 are pulled out to the outside of the tank so as not to hinder the connection work.

  By the way, in connection work of each of the part cables C1, C2,... Cn + 1, it may be necessary to perform the work in a work environment in which temperature, humidity, cleanliness, etc. are maintained and managed at a certain level or higher. In this case, the inside of the cable connection chamber that performs the connection work needs to satisfy the above-described work environment.

  As shown in FIG. 6, in the cylindrical tank 62, each of the part cables A, B, C... Obtained by dividing the long cable is sequentially wound in a coil shape and stored vertically. A2, B1, B2,... Are drawn out to the outside of the tank 62 in advance.

  The cable connection chamber 61 basically has a sealed structure with gypsum board or the like in order to maintain the indoor work environment, and the terminals A1, A2, B1, B2,. A slit 64 to be carried out or a similar one is provided. The connection chamber 61 is directly fixed or placed in the vicinity of the tank 62.

  In the connection chamber 61, the terminals A1, A2, B1, B2... Are drawn into the slit 64, and the terminals A1, A2, B1, B2. By connecting the terminal B1, and the terminal B2 and the terminal C1), a connecting portion is formed to perform the connection work.

  The prior art document information related to the invention of this application includes the following.

JP 2003-279784 A JP-A-8-168621

  As described above, when the cable length of the submarine cable is very long, all necessary part cables are often divided and stored in a plurality of tanks.

  However, as shown in FIG. 7, the conventional cable connection chamber 61 is directly fixed or placed in the vicinity of one tank 62a. Therefore, when the plurality of tanks 62a and 62b are provided at positions separated from each other, the terminals D1, D2, E1, E2... Of the respective part cables D, E, F. It is necessary to draw it out to the outside of the tank 62b until it reaches the length of 61.

  Therefore, the length L from the tank 62b to the tip e of the terminals D1, D2, E1, E2... Becomes very long, and the temporary placement place of the terminals D1, D2, E1, E2. When securing or carrying the terminals D1, D2, E1, E2,... Into the connection chamber 61, there is a problem that a crane or other transport equipment or a lot of manpower is required.

  In addition, since the connection chamber 61 has a sealed structure, a crane or other transport device must be used when the connection portion is carried out of the connection chamber 61. Therefore, an unexpected impact or the like may be applied to the connection portion, which may adversely affect the performance or long-term reliability of the connection portion.

  Furthermore, since the inside of the connection chamber 61 cannot be seen from the outside, there is a problem in safety and hygiene management such that the situation of indoor workers engaged in connection work cannot be confirmed.

  SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a cable connection chamber that facilitates connection work between the ends of part cables regardless of the position of the tank.

  The present invention was devised in order to achieve the above object, and the invention of claim 1 is characterized in that the ends of parts cables divided and stored in a plurality of storage containers are installed in order to lay a long cable on the seabed or the like. In a cable connection room for connection under a predetermined work environment, a rail is laid in the vicinity of the plurality of storage containers, and the connection room is adapted to the terminal position of the part cable to be connected on the laid rail. This is a cable connection chamber in which the main body is movably provided.

  In the invention of claim 2, the connection chamber body is provided with wheels for traveling on the rails, an anchoring portion is provided, a hooked wire is hooked on the anchoring portion, and the hooked wire with the hook is taken up by a winding means. The cable connection chamber according to claim 1, wherein the connection chamber body is wound and moved.

  The invention according to claim 3 is the cable connection chamber according to claim 1 or 2, wherein the inside and outside of the connection chamber main body are partitioned by a transparent partition member.

  Invention of Claim 4 is a cable connection chamber in any one of Claims 1-3 provided with the conveyance means which conveys the terminal of the said parts cable, and the connection member which connects the terminals of the said part cable. .

  According to the present invention, it is possible to easily perform the connection work between the ends of the part cables regardless of the position of the tank.

  Preferred embodiments of the present invention will be described below with reference to the accompanying drawings.

  FIG. 1 is a perspective view of a cable connection chamber showing a preferred embodiment of the present invention.

  As shown in FIG. 1, the cable connection chamber 1 according to the present embodiment is provided in a laying ship used for laying a long cable, a factory for connecting a long cable, or the like. In the following description, an example in which a submarine cable is used as a long cable will be described.

  In the tank 62a as a cylindrical or long cylindrical storage container, each of the part cables A, B, C... Obtained by dividing the long cable is wound in a coil shape in order and stored vertically, and each terminal A1. , A2, B1,... Are drawn out of the tank 62a in advance. A tank 62b similar to the tank 62a is disposed at a position away from the tank 62a. Each part cable is also stored in the tank 62b, and each terminal is drawn out to the outside of the tank 62b by a predetermined length in advance.

  Each part cable is obtained by dividing a long cable into predetermined lengths. When all the part cables are connected, a long cable is formed.

  The cable connection chamber 1 has terminals A1, A2, B1... Of each of the part cables A, B, C... Stored in a plurality of tanks 62a, 62b in order to lay a long cable on the seabed (FIG. 1). Then, the terminal A2 and the terminal B1) are connected to each other under a predetermined work environment.

  In the vicinity of the plurality of tanks 62a and 62b, a set of two rails 2a and 2b are laid at a certain distance from each other. On the laid rails 2a, 2b, the connection chamber body 3 is movably provided in accordance with the terminal positions of the respective part cables A, B, C.

  The tanks 62a and 62b and the rails 2a and 2b are provided on the same plane. As the rails 2a and 2b, for example, a flat bottom rail or a grooved rail is used.

  The connection chamber body 3 is formed in a substantially box shape, and a work space is provided therein. The work space is a space for indoor workers to perform connection work in the connection chamber body 3. Wheels 4 (four in FIG. 1) for traveling on the rails 2a and 2b are attached to the lower part of the connection chamber body 3. A tire may be attached to each wheel 4.

  At the front end and the rear end of the connection chamber body 3, a substantially U-shaped anchoring portion 5 is provided. A hooked wire 7 having a hook 6 attached to one end is hooked on the mooring portion 5. Between the rails 2a and 2b, winches 8 as winding means for winding the wire 7 with hooks are provided at predetermined intervals along the length direction of the rails 2a and 2b.

  The boundary between the connection chamber body 3 and the outside, more specifically, one side surface 3L on the tank 62a, 62b side of the connection chamber body 3, and a part of the front surface 3f and the rear surface 3b of the connection chamber body 3 are A curtain 9 is provided as a transparent partition member that partitions the inside of the connection chamber body 3 from the outside. As a material of the curtain 9, a transparent resin such as flexible transparent vinyl is desirable.

  More specifically, as shown in FIG. 2, the curtain 9 includes, for example, two curtains 9 f and 9 b that are slidably attached to the connection chamber body 3. One curtain 9f is attached from one side surface 3L of the connection chamber body 3 to a part of the front surface 3f, and is slidable toward the front surface 3f side of the connection chamber body 3. The other curtain 9b is attached from one side surface 3L of the connection chamber body 3 to a part of the rear surface 3b, and is slidable to the rear surface 3b side of the connection chamber body 3. The mating surfaces of the curtains 9f and 9b are attached with hook-and-loop fasteners and can be opened and closed.

  Moreover, the cable connection chamber 1 is equipped with wheels as a transport means for transporting the terminals of each part cable (terminal A2 and terminal B1 in FIG. 2) and the connection member 65 that connects the terminals of each part cable. A work carriage 10 is provided.

  The work cart 10 includes a work table 11 on which terminals of each part cable and a connection member 65 are placed, four support legs 12 that support the work table 11, and wheels 13 that are attached to the support legs 12. . The work cart 10 is mounted in the connection chamber main body 3, for example.

  The work carriage 10 carries the parts cable terminals and the connection member 65 into the connection chamber body 3 before the connection work, and connects the parts cable terminals via the connection member 65 after the connection work. The connecting portion is carried out from the inside of the connection chamber body 3. In order to facilitate the movement (carry-in / carry-out) of the work carriage 10, it is preferable to provide a trap plate or lift (not shown) that can be opened and closed at the lower part of one side surface of the connection chamber body 3.

  The operation of the present embodiment will be described.

  For example, as shown in FIG. 1, a case will be described in which the terminals of the respective part cables stored in tanks 62a and 62b provided at two locations are connected to each other.

  First, an outdoor worker hooks the hook 6 of the hooked wire 7 on the mooring portion 5 of the connection chamber body 3, winds up the hooked wire 7 with the winch 8, and on the rails 2a and 2b in the vicinity of the tank 62a. The connection chamber body 3 is moved and stopped. That is, the connection chamber body 3 is moved and stopped in accordance with the terminal position of each part cable to be connected.

  Here, as shown in FIG. 2, the curtains 9 f and 9 b are opened, and the terminals A <b> 2 and B <b> 1 of each part cable and the connection member 65 are carried into the connection chamber body 3 by the work carriage 10. After carrying in, the curtains 9f and 9b are closed, and depending on the type of cable, it is confirmed that the temperature, humidity, cleanliness, etc. in the connection chamber body 3 are maintained and managed at a certain level or higher.

  And an indoor worker connects terminal A2, B1 of each part cable via the connection member 65, forms a connection part and performs a connection operation | work. After the connection work, the curtains 9f and 9b are opened, and the work carriage 10 is moved in the direction of the arrow L, whereby the connection portion is carried out from the connection chamber body 3. Thereafter, the terminals of other parts cables are similarly connected.

  Next, returning to FIG. 1, after performing the connection work related to the tank 62a, the wire 7 with hook is again wound up by the winch 8, and the connection chamber main body 3 is moved in the direction of arrow F in the vicinity of the tank 62b to be stopped. . Thereby, the connection work regarding the tank 62b can be continued.

  Thus, the cable connection chamber 1 is installed on the rails 2a and 2b laid near the tanks 62a and 62b so that the connection chamber main body 3 can be moved by the wheels 4 or the like, so that the rails 2a and 2b can be freely moved. Can move to. For this reason, regardless of the position of the tanks 62a and 62b, the connection work between the terminals of the respective part cables can be easily and efficiently performed in a limited space.

  That is, in both tanks 62a and 62b, the terminal lead length of each part cable extends from the tank to the vicinity of the rails 2a and 2b, so that the terminal cable lead length of the part cable from the tank can be minimized.

  Moreover, the curtains 9f and 9b can be easily slid and opened / closed, and the work carriage 10 allows the terminal of each part cable and the connection member 65 to be carried into the connection chamber body 3, and the connection portion to be carried out from the connection chamber body 3. Therefore, there is no need to use a crane or other transport equipment. Therefore, the terminal of each part cable and the connection member 65 can be easily carried into the connection chamber main body 3 with a minimum of labor, and the connection portion can be easily carried out from the connection chamber main body 3.

  In addition, when carrying in and out, the impact of the crane operation or the like is not applied to the terminal of each part cable, the connecting member 65, and the connecting portion, so that the performance and long-term reliability of the connecting portion are not impaired. .

  Furthermore, since the curtains 9f and 9b are transparent, the inside of the connection chamber body 3 can be confirmed from the outside, and safety and hygiene management for indoor workers can be easily performed from outside the room.

  Since the connection chamber 1 has the mooring portions 5 attached to both ends of the connection chamber main body 3, by selecting the winch 8 to be used, the connection chamber 1 can be moved in the direction opposite to the F direction and can be moved in both directions. It is.

  As described above, when it is necessary to maintain and manage the temperature, humidity, cleanliness, etc. in the connection chamber body 3 in a working environment of a certain level or more, for example, to satisfy these in the connection chamber body 3 By providing an air conditioner, an air shower, etc., and making the curtains 9f and 9b into double partitions, the sealing performance against the outside air can be improved.

  Next, application examples and other embodiments of the present invention will be described.

  In the above embodiment, the winch 8 is operated by an outdoor worker. For example, the connection chamber 1 is moved by remote control of the winch 8 or an operation from the cab provided in the connection chamber main body 3. As a result, the labor of the outdoor worker accompanying the movement can be reduced.

  Further, as shown in FIG. 3, the present invention connects terminals of each part cable stored in a plurality of tanks installed in a plurality of rows, for example, four tanks 32a to 32d similar to the tank 62a in FIG. It can also cope with the case.

  In this case, two or more sets of rails, for example, two sets of rails 33a and 33b and rails 33c and 33d similar to the rails 2a and 2b in FIG. 1 are crossed in the vicinity of the tanks 32a to 32d. A turntable 34 that changes the moving direction of the cable connection chamber 41 may be provided at the intersection c. Thereby, the connection chamber 41 can be moved to each position of 41b, 41c, 41d shown with the dashed-dotted line in FIG. 3 in the vicinity of all the tanks 32a-32d.

  In the connection chamber 41 according to another embodiment, as shown in FIG. 4, curtains 9L and 9R similar to the curtain 9 in FIG. 1 are attached to both side surfaces 43L and 43R facing each other of the connection chamber main body 43. Is. According to this cable connection chamber 41, it is possible to correspond to the tanks 32 a to 32 d of FIG. 3 arranged in a plurality of rows, and each part stored in the tanks 32 a and 32 b arranged on both sides of the connection chamber 41. Cable terminals can be connected simultaneously.

  In the above embodiment, the description has been made with a focus on the use for submarine cables. However, the present invention requires connection processing or terminal processing in the middle or terminal of a long cable, and the connection / terminal work. It can also be applied as a connection room or terminal work room for all wires and cables such as underground, land, and aerial that sometimes require some environmental maintenance.

  Furthermore, when using resin curtains, work that requires strict anti-static measures by attaching a grounding terminal in the connection chamber body and applying a resin curtain with an antistatic function. For example, the present invention can also be applied to a connection work between terminals of each part cable constituting an optical submarine cable and an optical repeater as a connection member.

It is a perspective view of a cable connection room showing a preferred embodiment of the present invention. It is an expansion perspective view of the cable connection chamber shown in FIG. It is a top view which shows an example of the installation of a rail. It is a perspective view which shows other embodiment of this invention. It is the schematic which shows the laying condition of a submarine cable. It is a perspective view which shows an example of the cable connection room of a background art, and its connection condition. It is a perspective view which shows an example of the connection condition in the cable connection room of background art.

Explanation of symbols

1 Cable connection chamber 2a, 2b Rail 3 Connection chamber body 62a, 62b Tank (storage container)
A, B, C ... Parts cable A1, A2, B1 ... Terminal

Claims (4)

  In order to lay long cables on the seabed etc., in the cable connection room for connecting parts cable terminals divided and stored in multiple storage containers under a predetermined work environment, close to the multiple storage containers A cable connection chamber characterized in that a rail is laid and a connection chamber body is movably provided on the laid rail in accordance with the terminal position of the part cable to be connected.   The connection chamber main body is provided with wheels for running on the rails, a mooring portion is provided, a hooked wire is hooked on the mooring portion, and the hooked wire is wound by a winding means, and the connection chamber main body is wound. The cable connection chamber according to claim 1, wherein the cable is moved.   The cable connection chamber according to claim 1 or 2, wherein the inside of the connection chamber main body and the outside are partitioned by a transparent partition member. The cable connection chamber according to any one of claims 1 to 3, further comprising conveying means for conveying the terminals of the part cables and a connecting member for connecting the terminals of the part cables.

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