JPH1020161A - Pipe cable connection device and pipe cable connection method - Google Patents

Abstract

(57) [Problem] To provide a pipe cable connection device which has a good connection work efficiency and can be significantly reduced in size. SOLUTION: This is a pipe cable connector for mutually connecting pipe cables 1a, 1b accommodating pipes 2a, 2b for optical fiber transmission. Pipes 2a, 2b
Are connected to each other using a connection pipe 9 having pipe connectors 8a and 8b at both ends. The cylindrical straight sleeves 4a and 4b and the T-shaped branch sleeve joint 6 cover and protect the pipe cable connection. The fastening members 3a, 3b and the gaskets 7a, 7b are inserted into the ends of the linear sleeves 4a, 4b, and
a, 1b are attached to the linear sleeves 4a, 4b. A plurality of pipes 2a are exposed inside the straight sleeve 4a.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a pipe cable connecting device and a pipe cable connecting method. This pipe cable connection device is used, for example, as a closure for connecting pipes for transmitting an optical fiber cable for pneumatic transmission and protecting the connection.

[0002]

2. Description of the Related Art Generally, it is desirable to lay an optical fiber cable in a long length in order to reduce transmission loss by reducing the number of connection points of the optical fiber and to reduce construction costs. On the other hand, the optical wiring of the part branched from the optical trunk network and reaching the subscriber's terminal, and the light L in the building and on the canvas
In the AN, there is a demand for an economical wiring configuration that can freely set the wiring configuration, can flexibly cope with future changes in the wiring configuration, and is economical.

[0003] When an optical fiber cable for pneumatic feeding is used, a pipe cable having an optical fiber insertion pipe is laid in a short length for each section, and the optical fiber insertion pipes of adjacent sections are connected to each other according to the wiring configuration. After doing
A long optical fiber cable can be laid in a continuous length by sending compressed air.

[0004] When connecting such a pipe cable, conventionally, as a pipe cable connecting device, Noriyuki Suzuki and five others, "Development of air blown fiber system",
Sumitomo Electric, 136, (1990-3), p. 124-1
A junction box or closure as described at 31 was used.

FIG. 17 is a side view for explaining an example of a conventional standard closure. In the drawing, 91 is a half sleeve, 92 is an end plate, 93 is a band fastener, 94 and
95 is a pipe cable inlet, and 96 is a fastening screw.
Although only the side surface of the closure is shown in the drawing, the entire closure has a substantially columnar shape that extends long along the longitudinal direction of the cable.

The half-split sleeve 91 has a structure in which two sheets are formed as a set and are superimposed on each other to form a cylindrical sleeve. The half-split sleeve 91 is divided during the connection operation. The end plate 92 is provided with pipe cable inlets 94 and 95. The end plate 92 is divided into three parts, and in a divided state, the pipe cable is inserted into the pipe cable inlet 94 and the pipe cable inlet 95 is integrated with a fastening screw 96 with an obstruction plug interposed therebetween. It is divided when working. The closing plug is provided at the lower pipe cable inlet 95, and is used to close when there is no other pipe cable to be introduced.

The features of the closure will be described by describing an example of a connection work procedure. However, it is not meant to be limited to this procedure. Inside the closure (not shown), the outer jacket of the end of the pipe cable introduced from the pipe cable inlet 94 is gripped by the grip metal. The end of the tension member protruding from the end of the jacket is fixed to the bottom of the closure with a gripping metal, and a plurality of pipes are inserted one by one into the pipe connector. Fixed. The pipes of the pipe cables introduced from the left and right sides of the closure are connected via this pipe connector. Also, in the case where the pipes of two pipe cables are not connected to each other, but a general multi-core optical unit is branched into a pipe cable from an optical cable or the like in which a plurality of units are housed, a fusion splicing part of an optical fiber core is used. Equipped with extra storage tray.

After connection of all the pipes is completed, the end face plate 92 is attached, the half sleeve 91 is overlapped on both ends thereof with the end face plate 92 interposed therebetween, and a band (not shown) is wound around a plurality of locations on the outer periphery to fasten the band. The connection work is completed by fastening with the tool 93. The inside of the closure is provided with water resistance and airtightness by means of an end plate gasket, an end plate seal member, an air tight tape or the like, such as providing a sleeve sealing material at the joint of the sleeve.

In the closure using the half sleeve 91 described above, the internal fitting is often modified by diverting a normal optical cable closure, and a grip for gripping the end of the tension member and a pipe connector mounting bracket are used. Installed inside. Since the half sleeve 91 is sealed with a sealing material, the thickness of the sleeve cannot be reduced. In the case of branching the pipe cable, the branch pipe cable is removed from the end plate 92 on both sides or one side of the closure, and drawn into the pipe cable inlet 95 in a direction parallel to the main cable. For this reason, there is a problem that it is difficult to reduce the size of the closure, and the installation place of the closure is limited.

[0010] Since the position of the pipe connector is fixed in advance, it is necessary to adjust the pipe outlet length of the two pipe cables connecting the pipe to the pipe connector from both sides. Requires precise management of pipe length. Work such as seaming of the half sleeve 91, sealing of the end face plate 92, fixing of the tension member, and the like are troublesome, so that the operation of assembling the closure is complicated. In addition, some parts such as a sealing material cannot be reused at the time of reassembly such as after branching.

FIG. 18 is a side view of the prior art of the pipe cable connecting device, in which a portion of the connecting portion protection member is cut away. In the figure, 1a and 1b are pipe cables, 2a and 2b are pipes, 101a and 101b are connecting portion protection members, 102a and 102b are pipe connectors, 1
03a and 103b are pipe connector mounting members, 104 is a fitting nut, and 105a and 105b are waterproof admixtures.
This pipe cable connection device is filed as Japanese Patent Application No. 7-9854. Pipe connectors 102a and 102b are attached to the ends of the pipes 2a and 2b in advance so that a plurality of pipes can be connected and detached at a time.

In this prior art, the pipe cable 1
For example, seven pipes 2a and 2b for transmitting optical fibers are accommodated in a and 1b, respectively, and the pipe cable connecting device can connect these seven pipes 2a and 2b simultaneously. The ends of the pipes 2a and 2b are attached to pipe connectors 102a and 102b, respectively. The pipe connectors 102a and 102b are attached to the pipe connector attachment members 103a and 103b, respectively, and are protected by the connection part protection members 101a and 102b.

[0013] Pipe connector mounting members 103a, 103
b, all pipes 2a and 2
b are connected collectively. Thereafter, the fitting nut 104 provided on one of the connection portion protection members 101b is screwed into a screw portion formed on the outer peripheral surface of the other connection portion protection member 101a to fix both connection portions.

In this prior art, the connecting portion protection member 101 is provided.
a, 102b is equal to the outer diameter of the pipes 2a, 2b.
As a result, the size of the connection device can be reduced to about 80% in outer diameter and about 50% in overall length, as compared with the case where a conventional closure is used. In addition, pipe cable 1
By attaching the connecting portions to the terminals a and 1b in advance and filling the inside with the waterproof mixture 105a and 105b, the work process at the site becomes two processes of fitting of the connecting portion and fixing with the fitting nut. be able to. Therefore, no special skills are required for the on-site work, and the on-site work time is short and the work efficiency is improved. In addition, by connecting the connecting portions to the pipe cables 1a and 1b in advance at the factory, a highly reliable connection can be made.

However, even in this prior art, the pipe connector mounting members 103a and 103b are required, and it is desired to further reduce the size. Further, the structure is not intended to secure airtightness and watertightness, and the waterproof mixture 10
Although 5a and 105b are filled, it is necessary to cover the whole with a heat-shrinkable tube depending on the use environment. Further, if this state is left as it is, no branching can be performed, so that it is limited to the use of straight connection.

[0016]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned circumstances, and does not require special skills for on-site work. It is an object of the present invention to provide a pipe cable connection device and a pipe cable connection method that can be significantly reduced in size.

[0017]

According to a first aspect of the present invention, there is provided a pipe cable connecting apparatus for interconnecting a plurality of pipe cables each having at least one pipe, the pipe having a corresponding end portion. Pipe connecting means, a tubular member surrounding the pipe connecting means, and an insertion hole for inserting the pipe cable, the pipe cable being inserted into an end of the tubular member and connecting the pipe cable to the tubular member. Characterized in that it has an attaching means for attaching to the.

According to a second aspect of the present invention, in the pipe cable connecting device according to the first aspect, the attaching means presses an outer periphery of the pipe cable and holds the pipe cable inside the tubular member. Characterized in that it has compression gripping means for performing the compression.

According to a third aspect of the present invention, in the pipe cable connecting device according to the second aspect, the attaching means is configured to release the compression gripping means when the attaching means is inserted into an end of the tubular member. It has a fastening means for pressing and fastening.

According to a fourth aspect of the present invention, in the pipe cable connecting device according to the second or third aspect,
The cylindrical member has a stepped portion on an inner wall of the cylindrical member for regulating an insertion depth of the compression gripping means.

According to a fifth aspect of the present invention, in the pipe cable connecting device according to any one of the first to fourth aspects, the tubular member includes a plurality of tubular members for gripping a cable and the cable gripping member. And at least one joint tubular member for connecting the tubular members.

According to a sixth aspect of the present invention, in the pipe cable connecting device according to the fifth aspect, at least the cable gripping device is provided near a connecting portion between the cable gripping tubular member and the joint tubular member. It has a seal member for sealing the cylindrical member side.

According to a seventh aspect of the present invention, in the pipe cable connecting device according to the fifth or sixth aspect,
The joint tubular member has a tubular branch portion on an outer peripheral surface to which the cable grasping tubular member is connected.

According to the invention described in claim 8, in the pipe cable connecting device according to any one of claims 1 to 7, the pipe connecting means includes a connecting pipe and two ends of the connecting pipe. It has a pipe connector attached.

According to a ninth aspect of the present invention, in the pipe cable connecting device according to the eighth aspect, the pipe connecting means includes a plurality of connecting pipes and a plurality of connecting pipes attached to both ends of the connecting pipe. A plurality of pipe connectors, and the plurality of pipe connectors are integrated at each end.

According to a tenth aspect of the present invention, in the pipe cable connecting device according to any one of the first to ninth aspects, the pipe cable has a strength member, and opposite ends of the strength member. The parts are connected via at least one cylindrical connection member.

[0027] In the pipe cable connecting method for connecting a plurality of pipe cables having at least one pipe, the required number of the mounting means and the cylindrical member may be reduced by the required number of the plurality of pipe cables. The pipe cable is inserted through a pipe cable, ends of the pipes to be connected are connected to each other through a pipe connecting means, the tubular member is moved, and the attaching means is inserted into an end of the tubular member. Is attached to the tubular member.

According to a twelfth aspect of the present invention, in the pipe cable connecting method for connecting a plurality of pipe cables having at least one pipe, the attaching means and the cable holding tubular member are provided for each of the pipe cables. At the same time, the pipe connecting means is inserted into the joint tubular member, the ends of the pipes to be connected are connected to each other via the pipe connecting means, and the cable gripping tubular member is moved to move the joint tubular member. And connecting the pipe cable to the cable holding tubular member by inserting the attaching means into an end of the cable holding tubular member.

According to a thirteenth aspect of the present invention, in the pipe cable connecting method according to the eleventh or twelfth aspect, the pipe connecting means includes a connecting pipe and a pipe connector attached to both ends of the connecting pipe. And being inserted into the joint tubular member with a seal member attached near the pipe connector.

According to the present invention, a desired pipe of the first and second pipe cables having a plurality of pipes is connected to at least one pipe via a pipe cable connecting device having a cylindrical branch portion. In the pipe cable connecting method of branching and connecting to a desired pipe of the third pipe cable having the following, the attaching means and the cylindrical member are inserted into the third pipe cable to connect the desired pipe of the first and second pipe cables. The end and the end of the desired pipe of the third pipe cable are connected via pipe connection means, the cylindrical member is moved and connected to the cylindrical branch, and the mounting means is connected to the cylindrical pipe. A third pipe cable is inserted into the end of the member and attached to the tubular member.

According to a fifteenth aspect of the present invention, in the pipe cable connecting method according to the fourteenth aspect, at least the side of the tubular member is sealed in the vicinity of the connection between the tubular branch portion and the tubular member. After the sealing member is provided, a desired pipe end of the first pipe cable and a desired pipe end of the second pipe cable are connected via pipe connection means. .

According to a sixteenth aspect of the present invention, in the pipe cable connecting method according to the fourteenth or fifteenth aspect, the sealing process is performed on an end of the pipe having no mating pipe to be connected by branch connection. It is a feature.

According to a seventeenth aspect of the present invention, in the pipe cable connecting method according to any one of the fourteenth to sixteenth aspects, the pipe cable connecting device comprises:
A joint tubular member having a tubular branch portion, wherein the tubular branch portion is in a sealed state in an unbranched state, and is opened at the time of branch connection to connect the tubular member. Things.

In the invention according to claim 18, in the pipe cable connection method according to any one of claims 14 to 17, the pipe connection means has a branch connection pipe, and The end of the desired pipe of the first pipe cable and the end of the desired pipe of the second pipe cable are connected to each end of the pipe by a pipe connector.

[0035]

FIG. 1 is a sectional view for explaining a first embodiment of a pipe cable connecting device according to the present invention. In the figure, the same parts as those in FIG. 18 are denoted by the same reference numerals, and description thereof will be omitted. 3a and 3b are fastening members, 4a and 4b are linear sleeves, 5a and 5b are gaskets, 6 is a T-shaped branch sleeve joint, 7a and 7b are gaskets, 8a and 8b.
Is a pipe connector, 9 is a connection pipe, and 10 is a cap.

The pipe cable connecting device of this embodiment is a pipe cable connecting connector for mutually connecting two pipe cables 1a and 1b accommodating the optical fiber transmission pipes 2a and 2b, respectively. Pipe 2a,
As a member for connecting corresponding ends of 2b, a connecting pipe 9 having pipe connectors 8a and 8b at both ends is used. Linear sleeves 4a and 4b and a T-shaped branch sleeve joint 6 are used as tubular members for covering and protecting the pipe cable connection. The fastening members 3a, 3b and the gaskets 7a, 7b have insertion holes through which the pipe cables 1a, 1b are inserted, and are inserted into the ends of the linear sleeves 4a, 4b to connect the pipe cables 1a, 1b to the linear sleeve 4.
a, 4b.

The pipe cable 1a includes a fastening member 3a, a gasket 5a, and washers 11a, 1 described later with reference to FIG.
A plurality of pipes 2a are inserted through the insertion hole 2a, and are exposed inside the cylindrical linear sleeve 4a. Depending on the pipe cable 1a, 1b to be used, a tensile strength member (tension member) such as a coated steel wire or a coated steel wire is accommodated together with a plurality of pipes 2a, 2b. In this case, the tensile strength member is also exposed. Have been.

The linear sleeve 4a is connected to a cylindrical T-shaped branch sleeve joint 6, and a gasket 7a is attached to a connecting portion, and a plurality of pipe connectors 8a are attached while being partially buried in the gasket 7a. The ends of the plurality of pipes 2a are inserted into one connection port of the pipe connector 8a. The same applies to the pipe cable 1b side, and the straight sleeve 4b is connected to the other side of the cylindrical T-shaped branch sleeve joint 6, and the ends of the plurality of pipes 2b are connected to one connection port of the pipe connector 8b. Plugged in. The pipe connector 8a and the pipe connector 8b are connected by a plurality of connection pipes 9 in the T-shaped branch sleeve joint 6. The connection pipe 9 is inserted into the other connection port of the pipe connectors 8a and 8b.

One example of the pipe connectors 8a and 8b has a hole that linearly communicates between the connection ports at both ends into which the pipe is inserted, and the connection port is provided with a pipe preventing member and an airtight seal member. It is. When pulling out the pipe, when the claw detaching member is pushed in from the connection port, the pull-out preventing claw is removed from the pipe, whereby the pipe can be pulled out. The plurality of pipe connectors 8a are provided with a connector support plate (not shown),
It can be integrated by attaching it to this support plate at once. The same applies to a plurality of pipe connectors 8b. A plurality of connection pipes 9 can also be integrated by, for example, housing them together in one pipe.

On the outer peripheral surface at the center of the T-shaped branch sleeve joint 6, a short cylindrical branch connection portion is provided so as to protrude therefrom.
In a state where no branch connection is made, the cap is sealed by the cap 10. A plurality of branch connection portions may be provided on the outer peripheral surface.

FIG. 2 is an exploded view of a fastening member and a gasket for holding a pipe cable inside a straight sleeve. In the figure, the same parts as those in FIG. 11a and 12a are washers, 13 is a first step, and 14 is a second step.

The fastening member 3a is provided with a threaded portion, and is screwed into the end opening of the linear sleeve 4a and inserted. The end face of the threaded portion contacts the gasket 5a with the washer 11a interposed therebetween, and the gasket 5a contacts the first step portion 13 formed on the inner wall of the linear sleeve 4a via the washer 12a to reduce the insertion depth. Position is regulated. Pipe cable 1a
Is inserted through the respective insertion holes of the fastening member 3a, the washer 11a, the gasket 5a, and the washer 12a, and is introduced into the linear sleeve 4a. The second step portion 14 is provided to regulate the position of the gasket 7a as described with reference to FIG. Although the fastening member 3a has been described, the fastening member 3b side is also symmetric and similar.

FIGS. 3A and 3B are views for explaining the operation of the fastening member and the gasket. FIG. 3A is a partially enlarged view of a turning start state, and FIG. In the figure,
The same parts as those in FIG. 2 are denoted by the same reference numerals, and description thereof will be omitted. As shown in FIG. 3A, when the fastening member 3a is inserted into the straight sleeve 4a by turning it around, the gasket 5a is pressed via the washer 11a. As shown in FIG. 3B, the gasket 5a includes a washer 11a and a first stepped portion 1a.
3 is pressed between the washer 12a and the washer 12a, the insertion of the fastening member 3a exerts an effect of pressing the outer periphery of the pipe cable 1a and holding the pipe cable 1a on the inner wall surface of the linear sleeve 4a. As a result, the pipe cable 1a
Is detachably fixed to the linear sleeve 4a,
The cable inlet has a hermetic structure, ensuring watertightness and airtightness.

FIG. 4 is an exploded view for explaining the connection between the sleeves and the sealing structure. FIG. 4 (A) is an exploded view of the first embodiment shown in FIG. 1, and FIG. 4 (B). Is an exploded view in a modified example. In the figure, the same parts as those in FIG. 21a, 21
b, 22a and 22b are washers, 23a and 23b are gaskets, and 24a, 24b, 25a and 25b are washers.

In FIG. 4A, a connecting pipe 9 is inserted into the T-shaped branch sleeve joint 6 in advance, and pipe connectors 8a and 8b are attached to both ends of the connecting pipe 9. A gasket 7a is attached between the pipe connector 8a and the end of the T-shaped branch sleeve joint 6. The pipe connector 8a is partially embedded in the gasket 7a, and is loosely attached to the end of the T-shaped branch sleeve joint 6. The both ends of the gasket 7a are provided with washers 21a, 22a.
Is provided. The same applies to the pipe connector 8b side, in which a gasket 7b and washers 21b and 22b are attached.

A thread groove is formed inside the straight sleeve 4a and outside the T-shaped branch sleeve joint 6, and when both are screwed together, a washer 21a is provided on the second step portion 14 on the inner wall of the straight sleeve 4a. When the gasket 7a is pressed against the inner wall of the straight sleeve 4a at the connection portion, the gasket 7a is pressed against the inner wall of the straight sleeve 4a, and the inside of the straight sleeve 4a and the inside of the pipe cable 1a communicating therewith are hermetically sealed. This prevents water from entering the inside of the pipe cable 1a.

In FIG. 4B, the pipe connector 8
This is an example using gaskets 23a and 23b in which a and 8b are not embedded. The gaskets 23a and 23b are provided with holes for inserting the connection pipe 9 (not shown). At both ends of the gasket 23a, washers 24a are provided.
25a are provided, and washers 24b and 25b are provided at both ends of the gasket 23b.

FIG. 5 is an explanatory diagram of the end processing of the tensile strength member. 31a and 31b are tensile members, 32 is a cylindrical connecting fitting,
33 is a fastening screw. When the pipe cables 1a and 1b shown in FIG. 1 contain the strength members 31a and 31b such as a coated steel wire and a coated steel wire, the terminal treatment of the strength members is required. The coverings of the opposite ends of the strength members 31a and 31b are removed, and the strength members 31a and 31b are inserted into the holes of the cylindrical connection fitting 32.
The connection is fixed by being held down by the fastening screw 33. Alternatively, a short but similar strength member provided with such connection fittings at both ends is used, and through this, the strength members 31a and 31b are used.
May be connected. In FIG. 1, the outer circumferences of the pipe cables 1a and 1b are pressed by the gaskets 5a and 5b, and the strength members 31a and 31b are also pressed. In addition to this, the tensile members 31a, 31
By connecting b, the tensile strength members 31a and 31b can be prevented from moving when the pipe cables 1a and 1b are pulled or pushed.

As will be described later with reference to FIG.
In the case where branch connection is performed, if the pipe cable on the branch connection side also has a tensile strength member, it is preferable to use a tensile strength member having a short branch line and having a connection fitting at each end including the branch line. It is.

In the above description, the structure of the pipe cable connecting device according to the first embodiment of the present invention has been described. However, the present invention is not necessarily limited to the above-described structure, and various modifications are possible. The member that covers and protects the connection portion does not need to be cylindrical, and may be cylindrical. Further, as shown in FIG. 1, it is not necessary to use three parts including the linear sleeves 4a and 4b to which the pipe cables 1a and 1b are attached and the T-shaped branching sleeve joint 6 connecting these. For example, one straight sleeve 4a may be integrated with the T-shaped branch sleeve joint 6. In this case, the pipe connector 8a, the gasket 7a, the connection tube 9
The pipe 2a may be connected to the pipe 2b at the pipe connector 8b. Furthermore,
Inside one straight sleeve, pipe cable 1
The pipe cable 1a may be attached at one end and the pipe cable 1b may be attached at the other end so that a and 1b are connected by a pipe connector.

The T-shaped branch sleeve joint 6 is not only for the T-shaped branch, but also has a function of connecting the linear sleeves 4a and 4b. Therefore, a sleeve joint without a connecting portion for branching may be used. Among the sleeve joints of various lengths prepared in advance, the outlet length of the pipes 2a and 2b and the distance between the ends of the pipes 2a and 2b. Can be selected. Further, even if the length of the sleeve joint is constant, it is possible to add the sleeve joint to each other.
It can be made to correspond to the lead length of 2b. In the case of the T-shaped branch sleeve joint 6 as well, the selection of the length and the addition of a sleeve joint having no branch connection portion are possible.

The gaskets 7a and 7b can be omitted when no sealing of the connection is required. In addition,
Although the gaskets 5a and 5b are each provided with two washers, the washers are not necessarily required depending on the shape and structure of the mating partner, the material of the gasket, and the like. Gasket 5
The positions of a, 5b, 7a, 7b were regulated by the first and second steps 13, 14, but the inner wall surfaces of the linear sleeves 4a, 4b were tapered to gradually reduce the inner diameter. It is also possible to press the gaskets 5a, 5b, 7a, 7b. If the outer diameters of the gaskets 5a, 5b are made larger in advance than the inner diameters of the inner wall surfaces of the linear sleeves 4a, 4b and tapered, the gaskets 5a, 5b can be pushed by hand without using the fastening members 3a, 3b. It is also possible to be in a compressed state. Gasket 7a, 7
The same applies to b.

The fastening members 3a and 3b are
Although the method of screwing into a and 4b was adopted, it is also possible to fit by press fitting. The same applies to the connection between the straight sleeves 4a, 4b and the T-shaped branch sleeve joint 6.

FIG. 6 is a sectional view for explaining a second embodiment of the pipe cable connection device of the present invention. In the figure, the same parts as those in FIG. 1c is a pipe cable, 2c is a pipe, 3c is a fastening member, 4c is a straight sleeve, 5c is a gasket, 7c
Is a gasket, 8c is a pipe connector, 41a, 41b
Is a branch connection pipe. In this embodiment, the pipe cable connection device in the unbranched state described with reference to FIG. 1 is opened by removing the cap 10 of the branch connection portion at the time of branch connection, and connecting the straight sleeve 4c to the pipe connector 1c. Branch connection.

The straight sleeve 4c and its internal structure are as follows:
It is almost the same as the straight sleeve 4a, and includes a fastening member 3c, a gasket 5c, a gasket 7c, a pipe connector 8c,
A washer is provided. In the pipe connector 8a, the connection pipe 9 is pulled out from the pipe connector to which the one to be branched and connected in the pipe 2a is connected.
The branch connection pipe 41a is connected, and the branch connection pipe 4 is connected.
The other end of 1a is connected to the pipe connector 8c. When there is a pipe to be connected from the branch portion to the pipe 2b,
In the pipe connector 8c, another pipe connector to the pipe connector 8b are connected by a branch connection pipe 41b. The gasket 7c includes a branch connection pipe 41a,
Although only 41b is inserted, the pipe connector 8c is not embedded. When there is a pipe having no connection partner, it is desirable to perform a sealing process on the end of the pipe directly or via a pipe connector.

FIG. 7 is a sectional view for explaining a third embodiment of the pipe cable connection device of the present invention. In the figure, the same parts as those in FIG. Reference numeral 51 denotes a Y-shaped branch sleeve joint. This embodiment uses a Y-type branch sleeve joint 51 instead of the T-type branch sleeve joint 6 of the pipe cable connection device described with reference to FIG. for that reason,
The connection pipe 9 is inserted into the Y-shaped branch sleeve joint 51 in a smoothly curved state. The cylindrical branch connection is sealed by a cap 10. It is also possible to provide a sleeve joint for connecting the linear sleeves 4a and 4b at an arbitrary predetermined angle without providing the branch connection portion.

FIG. 8 is a sectional view for explaining a fourth embodiment of the pipe cable connection device of the present invention. In the figure, the same parts as those in FIGS. 7 and 6 are denoted by the same reference numerals, and description thereof will be omitted. In this embodiment, the cap 10 of the unbranched pipe cable connection device described with reference to FIG.
Is opened, the straight sleeve 4c is connected, and the branch is connected to the pipe 2c on the pipe connector 1c side.

The pipe cable 1c on the side of the straight sleeve 4c
The branch connection method is the same as that in the case of using the T-type branch sleeve joint 6 described with reference to FIG.
The pipe connectors 8a, 8b are connected to the branch connection pipes 41a,
The respective pipe connectors 8c are connected to each other via 41b.

FIG. 9 is a sectional view for explaining a fifth embodiment of the pipe cable connection device of the present invention. In the figure, the same parts as those in FIG. 6 are denoted by the same reference numerals, and description thereof will be omitted. 1d is a pipe cable, 2d is a pipe, 4d is a straight sleeve, 8d is a pipe connector, 61 is a sleeve joint, and 62 is a connecting pipe. In this embodiment,
By combining the T-shaped branch sleeve joint 6 shown in FIG.
A branch connection portion is provided at two places, and two T-shaped branch sleeve joints 6 are connected to each other by a sleeve joint 61 having a connection pipe 62, and between the pipe cables 1a and 1b, the pipe cables 1c and 1c are connected. 1d is a branch connection.

The straight sleeve 4d, its internal structure, and the branch connection method are the same as those of the straight sleeve 4c.
Sleeve joint 61 for T-shaped branch sleeve joint 6
Is replaced with the straight sleeve 4b shown in FIG. 1, and a gasket 7 is provided on the sleeve joint 61 side between the left T-shaped branch sleeve joint 6 and the sleeve joint 61.
b is inserted, and a first step portion is provided on the inner wall of the sleeve joint 61. In contrast, a gasket 7a is inserted into the sleeve joint 61 between the sleeve joint 61 and the right T-shaped branch sleeve joint 6, and a second step is provided on the inner wall of the sleeve joint 61. Have been. The pipe connector 8 b and the pipe connector 8 a in the sleeve joint 61 are connected by a connection pipe 62.

The sleeve joint 61 and the connecting pipe 6
In order to connect the two, for example, the connection pipe 62 is connected to the pipe connector 8b of the left T-shaped branch sleeve joint 6, and the pipe connector 8a of the right T-shaped branch sleeve joint 6 is connected thereto. After connecting the connection pipe 9 and the branch connection pipe 41a to this, the sleeve joint 6
1, the gasket 7a and the T-shaped branch sleeve joint 6 may be connected in this order.

FIG. 10 is a sectional view for explaining a sixth embodiment of the pipe cable connection device of the present invention.
In the figure, the same parts as those in FIGS. 9 and 7 are denoted by the same reference numerals, and description thereof will be omitted. This embodiment combines the T-type branch sleeve joint 6 shown in FIG. 1 with the Y-type branch sleeve joint 51 shown in FIGS. 7 and 8 to provide two branch connection portions. , The T-type branch sleeve joint 6 and the Y-type branch sleeve joint 51 are connected by a sleeve joint 61 having a connecting pipe 62, and the left pipe cable 1a is connected.
The pipe cables 1c, 1c are branched and connected between the lower right pipe cable 1b. The branch connection method is the same as that of the pipe cable connection device described with reference to FIG. 9, except that the pipe cable 1a side of the pipe cable connection device of the fourth embodiment shown in FIG. 8 is removed. Is shown.

FIG. 11 is an explanatory view of the first step of the method for assembling the pipe cable connection device of the present invention. In the figure, the same parts as those in FIGS. 1 and 2 are denoted by the same reference numerals, and description thereof is omitted. An example in which the gaskets 7a and 7b are not used will be described.
Reference numerals 71a and 71b denote linear sleeves, which are substantially the same as the linear sleeves 4a and 4b shown in FIG. 1, but have the gaskets 7a and 7b and the washers 21a, 22a and 21 shown in FIG.
The depth to the second step is reduced by the amount of b and 22b. 11b and 12b are washers. First,
Next, the pipe cables 1a and 1b, the pipes 2a and 2b, and the like are measured. Assuming that the pipes 2a and 2b are inserted into the respective connection ports of the pipe connectors 8a and 8b for a predetermined length, the outlet lengths of the pipes 2a and 2b are set as prescribed.
The jackets of the pipe cables 1a and 1b are removed. The tensile strength members 31a and 31b shown in FIG. 5 are also cut in consideration of the length of the cylindrical connection fitting 32. Fastening members 3a, 3b,
Washers 11a, 11b, gaskets 5a, 5b, washers 11
b, 12b are linear sleeves 71a,
It is preferable to store the cable in the opening at the end of the pipe 71b, but remove it when connecting the pipe cables 1a and 1b.

FIG. 12 is an explanatory view of the second step of the method for assembling the pipe cable connection device of the present invention. FIG.
FIG. 12A is an assembly view of the straight sleeve 71a side, and FIG.
(B) is an assembly drawing of the T-shaped branch sleeve joint 6 side.
In the figure, the same parts as those in FIG. In FIG. 12A, the pipe cable 1a
Is passed through insertion holes provided in the fastening member 3a, the washer 11a, the gasket 5a, and the washer 12a, and the straight sleeve 71a
Also pass through. The same applies to the pipe cable 1b side. In FIG. 12B, pipe connectors 8 are provided at both ends.
The connecting tube 9 to which the a and 8b are connected is inserted into the T-shaped branch sleeve joint 6.

FIG. 13 is an explanatory view of the third and fourth steps of the method for assembling the pipe cable connection device of the present invention. FIG.
3A is an explanatory view of the third step, and FIG. 13B is an explanatory view of the fourth step. In the figure, the same parts as those in FIG. In FIG. 13A, the pipe 2a on the pipe cable 1a side is connected to the pipe connector 8a, and the pipe 2a on the pipe cable 1b side is connected.
b to the pipe connector 8b. In FIG. 13B, the washer 12a and the gasket 5a are
a, and the straight sleeve 71a and the T-shaped branch sleeve joint 6 are connected. Washer 12b and fastening member 3a
Is moved and screwed into the end opening of the linear sleeve 71a and inserted, and the pipe cable 1a is attached to the linear sleeve 71a via the gasket 5a. Pipe cable 1
Similarly, the assembly of the pipe cable connection device in the initial state is completed on the b side. The cable introduction portion is sealed by the gaskets 5a and 5b.

In the above description, the gaskets 7a, 7b
However, when the gaskets 7a and 7b are attached, they can be assembled in the same manner using the linear sleeves 4a and 4b. In this case, the pipe cable connecting device as shown in FIG. Can be assembled.

In the above description, the T-shaped branch sleeve joint 6 as shown in FIG. 1 is used as an example. However, one straight sleeve 71a is connected to the T-shaped branch sleeve joint 6. In the case of being integrated, the fastening member 3a, the washer 11a, the gasket 5a, the washer 12a, the straight sleeve 71a and the T-shaped branching sleeve joint 6 may be passed through the pipe cable 1a side. .

FIG. 14 is an explanatory view of the first and second steps of the branch connection method of the pipe cable connection device according to the present invention.
FIG. 14A is an explanatory diagram of the first step, and FIG.
(B) is an explanatory view of the second step. In the figure, the same parts as those in FIG. 81a,
81b is a straight sleeve, 82 is a T-shaped branch sleeve joint, and 83 is a cap. In the description of the branch connection method, a pipe cable connection device having a slightly different structure from that described with reference to FIG. 1 will be described as an example.

FIG. 14A shows an initial assembled state. 1, the pipe 2a is connected to the pipe 2b via the pipe connector 8a, the connecting pipe 9, and the pipe connector 8b between the pipe tubes 1a and 1b. Although the linear sleeves 81a and 81b are functionally similar to the linear sleeves 1a and 1b shown in FIG. 1, the linear sleeves 81a and 81b have only a first step portion.
This outer peripheral surface and the inner peripheral surface of the T-shaped branch sleeve joint 82 are screwed together. They may be connected by fitting. Therefore, the inside diameter of the end opening of the T-shaped branch sleeve joint 82 is larger than the inside diameter of the T-shaped branch sleeve joint 6 shown in FIG. The same applies to the side where the cap 83 is attached and the side of the branch connection port. Fastening member 3
The gaskets a and 3b and the gaskets 5a and 5b are the same as those shown in FIG. 1, but the gaskets 7a and 7b for sealing the connection shown in FIG. 1 are not used.

In FIG. 14B, the fastening members 3a,
3b to loosen the cable introduction portion, and tighten the fastening members 3a,
3b is removed from the linear sleeves 81a, 81b. Next, the straight sleeves 81a and 81b are turned and loosened, and removed from the T-shaped branch sleeve joint. Sleeve Joint for T Type Branch 82
Remove the cap 83 from the branch connection port.

FIG. 15 is an explanatory view of a third step of the branch connection method of the pipe cable connection device according to the present invention. In the figure,
14 and 6 are denoted by the same reference numerals, and description thereof will be omitted. 81c is a linear sleeve similar to 81a and 81b. 11c and 12c are 11a, 11b, 12a,
The washer is similar to 12b. Branch side pipe cable 1
The fastening member 3c, the washer 11c, the gasket 5c, the washer 12c, and the linear sleeve 81c are inserted through c. In the connection pipe 9, one connected to the pipe to be branched and connected among the pipes 2a and 2b is removed, and one end of the branch connection pipe 41a and 41b is connected to the connection port of the pipe connector 8a and 8b, respectively. At the same time, the other end is connected to the pipe connector 2c on the branch connection side. The straight sleeves 81a and 81b are turned to connect to the T-shaped branch sleeve joint 82. The fastening members 3a, 3b are screwed into the end openings of the linear sleeves 81a, 81b, and the pipe cables 1a, 1b are attached to the linear sleeves 81a, 81b via the gaskets 5a, 5b, thereby sealing the cable introduction portion on the main line side.

FIG. 16 is an explanatory view of a fourth step of the branch connection method of the pipe cable connection device according to the present invention. In the figure,
Parts similar to those in FIG. 15 are denoted by the same reference numerals, and description thereof is omitted. The straight sleeve 81c is connected to a T-shaped branch sleeve joint 82.
Screwed into the branch connection port. The tightening member 3c is moved and screwed into the end opening of the straight sleeve 81c, and the pipe cable 1c is attached to the straight sleeve 81c via the gasket 5c to seal the branch-side cable introduction portion.

In the above description, the straight sleeve 81a,
81b, 81c and the T-shaped branching sleeve joint 82 have been described, but the linear sleeves 1a, 1b, 1 shown in FIG.
The same applies to the case where the c and T type branching sleeve joint 6 is used, and the same applies to the case where the Y type branching sleeve joint 51 shown in FIG. 7 is used.

[0074]

As is apparent from the above description, according to the present invention, according to the first aspect of the present invention, pipe connecting means for connecting corresponding ends of pipes, and this pipe connecting means are provided. Since the cylindrical member to be wrapped is used, no special skills are required for the on-site work, the on-site work time is short, the connection work efficiency is good, and the size can be significantly reduced. The tubular member protects the pipe connection part, and since it is not a half sleeve as in the conventional example, the hermetic reliability is improved, and there is an effect that the half sleeves need not be joined or a sealing work at the joint is unnecessary.

Since there is provided an insertion hole for inserting the pipe cable and an attaching means for inserting the pipe cable into the end of the tubular member and attaching the pipe cable to the tubular member, an independent gripping portion of the pipe cable is provided inside the tubular member. No need to prepare. As a result, it is possible to reduce the size, which is advantageous for laying in a small-diameter conduit, and if the cylindrical member is sufficiently longer than the connecting member,
There is an effect that it is not necessary to accurately adjust the length of the pipe so that workability is improved.

If detachable means such as screwing or fitting is used as the attaching means, the assembly and disassembly of the pipe cable connecting device can be repeated, and the members can be reused. It is economical because the number of parts and types of parts are small and all parts can be reused.

According to the second aspect of the present invention, since the attaching means has the pressing and holding means for pressing the outer periphery of the pipe cable and holding the pipe cable inside the tubular member,
This has the effect of improving the airtightness and watertightness of the pipe cable inlet.

According to the third aspect of the present invention, since the mounting means has the tightening means for pressing and tightening the compression gripping means when the mounting means is inserted into the end of the tubular member, the mounting means can be inserted. The operation has an effect that the pipe cable can be easily attached to the tubular member.

According to the fourth aspect of the present invention, since the cylindrical member has the step on the inner wall of the cylindrical member for regulating the insertion depth of the compression gripping means, the compression gripping means can be easily pressed. There is an effect that can be.

According to the fifth aspect of the present invention, since the tubular member has a plurality of tubular members for gripping cables and at least one tubular member for joints connecting the tubular members for gripping cables. In addition, it is possible to separate the cable holding tubular member and the joint tubular member, and to select the joint tubular member. When the connection length between the pipes is long, it can be dealt with by selecting a joint tubular member or adding a pipe. Also,
When the need for branch connection arises, the joint tubular member for branch connection can be used, and pipe reconnection can be performed within the tubular member for joint for branch connection to cope with the branch connection.
Furthermore, various connection forms and branch forms can be supported by combining a plurality of types of joint tubular members. If a T-type or Y-type joint tubular member is used, a T-type or Y-type
It becomes easy to lay in the mold pipeline.

According to the sixth aspect of the present invention, since a seal member for sealing at least the cable holding tubular member side is provided in the vicinity of the connection portion between the cable holding tubular member and the joint tubular member. When water tightness or air tightness is required, there is an effect that the cable inlet side can be easily formed into a closed structure at a connection portion between the cable holding tubular member and the joint tubular member.

According to the seventh aspect of the present invention, since the joint tubular member has a tubular branch portion to which the cable grip tubular member is connected on the outer peripheral surface, the branch connection including the rear branch is provided. There is an effect that it is possible. The branch pipe cable can be drawn in from a direction different from the straight line direction of the main pipe cable, and there is an effect that a branch connection device suitable for a T-type or Y-type pipeline can be provided.
The radius of curvature between the main line pipe cable and the branch pipe cable can be regulated by the pipe cable connection device. When used for the transmission of an optical fiber cable for pneumatic transmission, it is possible to prevent the optical fiber transmitted through the pipe cable from being subjected to excessive running resistance or being caught at a small radius of curvature so that pneumatic transmission cannot be performed. be able to.

According to the eighth aspect of the present invention, since the pipe connecting means has the connecting pipe and the pipe connectors attached to both ends of the connecting pipe, the connection with the pipe on the pipe cable side is easy. There is an effect that is. There is an effect that the length of the connecting pipe can be changed according to the length between the pipes facing each other on the pipe cable side. Also, by bending the connecting pipe, it is possible to cope with any of the T-type and Y-type joint tubular members.

According to the ninth aspect of the present invention, the pipe connecting means includes a plurality of connecting pipes and a plurality of pipe connectors attached to both ends of the connecting pipe.
Since a plurality of pipe connectors are integrated at each end, the pipe connection means can be handled as an integrated one, and there is an effect that the handleability is improved.

According to the tenth aspect of the present invention, the pipe cable has a tensile member, and the opposite ends of the tensile member are connected via at least one cylindrical connecting member. In addition to the pressing at the end of the tubular member, there is an effect that the movement of the tensile strength member against the pulling and pushing of the pipe cable can be prevented. Since a tensile strength body gripping part is not required, miniaturization is possible.

According to the eleventh aspect of the present invention, the required number of mounting means and cylindrical members are inserted into the plurality of pipe cables, and the ends of the pipes to be connected are connected via the pipe connecting means. Connecting, moving the tubular member, inserting the mounting means into the end of the tubular member and attaching the pipe cable to the tubular member, no special skills are required for on-site work, and the connection work efficiency is good There is an effect that is.

According to the twelfth aspect of the present invention, the fitting means and the cable holding tubular member are inserted for each pipe cable, and the pipe connecting means is inserted through the joint tubular member to connect the end of the pipe to be connected. The parts are connected to each other via a pipe connecting means, the tubular member for gripping the cable is moved and connected to the tubular member for fitting, and the attaching means is inserted into the end of the tubular member for gripping the cable to connect the pipe cable to the cable. Since it is attached to the gripping tubular member, the same effect as the invention according to claim 11 can be obtained, and by selecting the joint tubular member, it is possible to cope with various connection forms. .

According to the thirteenth aspect of the present invention, the pipe connecting means has the connecting pipe and the pipe connectors attached to both ends of the connecting pipe, and the joint is provided with the seal member attached near the pipe connector. Since it is inserted into the tubular member for use, there is an effect that the sealing operation of the connecting portion between the tubular member for cable gripping and the tubular member for joint can be easily performed.

According to the fourteenth aspect of the present invention, the attachment means and the cylindrical member are inserted into the third pipe cable,
The end of the desired pipe of the second pipe cable and the end of the desired pipe of the third pipe cable are connected via pipe connecting means, and the tubular member is moved to connect to the tubular branch. Since the attaching means is inserted into the end of the tubular member and the third pipe cable is attached to the tubular member, there is an effect that special skills are not required for on-site work and branch connection work efficiency is good. .

According to the fifteenth aspect of the present invention, after a seal member for sealing at least the cylindrical member side is provided in the vicinity of the connecting portion between the cylindrical branch portion and the cylindrical member, the first pipe cable is desirably formed. Since the end of the pipe and the end of the desired pipe of the second pipe cable are connected via the pipe connecting means, the work of sealing the connection between the pipe cable connecting device and the tubular member can be easily performed. There is an effect that can be.

According to the sixteenth aspect of the present invention, since the processing is performed on the end of the pipe having no partner pipe to be connected by branch connection, even if the pipe does not need to be connected for the time being, There is an effect that this pipe can be used without any trouble at the time of future connection replacement by preventing water or the like from inadvertently entering the pipe. In addition, there is an effect that it is possible to easily determine that the pipe is in an unconnected state when testing the connected state of the pipe.

According to the seventeenth aspect of the present invention, the pipe cable connecting device is a joint tubular member having a tubular branch portion, and the tubular branch portion is in a sealed state in an unbranched state. Since the tubular member is opened by unsealing at the time of connection, it is possible to prevent water or the like from inadvertently invading in the unbranched state, and there is an effect that the pipe cable connection device can be branched and connected without any trouble.

According to the eighteenth aspect of the present invention, the pipe connection means has a branch connection pipe, and each end of the branch connection pipe is connected to a desired pipe end of the first pipe cable and a second pipe. Since the desired pipe end of the second pipe cable is connected to the end of the pipe by the pipe connector, there is an effect that the on-site branch connection operation is simple, the operation time is short, and the operation efficiency is improved.

[Brief description of the drawings]

FIG. 1 is a sectional view for explaining a first embodiment of a pipe cable connection device of the present invention.

FIG. 2 is an exploded view of a fastening member and a gasket for holding a pipe cable inside a straight sleeve.

3 (A) is a view for explaining the operation of a fastening member and a gasket, and FIG.
(B) is a partial enlarged view of a mounted state.

FIG. 4 is an exploded view for explaining a connection between the sleeves and a sealing structure, wherein FIG. 4A is an exploded view of the first embodiment shown in FIG. 1, and FIG. FIG.

FIG. 5 is an explanatory diagram of end processing of a tensile strength member.

FIG. 6 is a sectional view for explaining a second embodiment of the pipe cable connection device of the present invention.

FIG. 7 is a sectional view for explaining a third embodiment of the pipe cable connection device of the present invention.

FIG. 8 is a cross-sectional view for explaining a fourth embodiment of the pipe cable connection device of the present invention.

FIG. 9 is a cross-sectional view for explaining a fifth embodiment of the pipe cable connection device of the present invention.

FIG. 10 is a sectional view for explaining a sixth embodiment of the pipe cable connection device of the present invention.

FIG. 11 is an explanatory view of a first step of the method for assembling the pipe cable connection device of the present invention.

FIG. 12 is an explanatory view of a second step of the method for assembling the pipe cable connection device of the present invention.

FIG. 13 is an explanatory diagram of the third and fourth steps of the method for assembling the pipe cable connection device of the present invention.

FIG. 14 is an explanatory diagram of first and second steps of the branch connection method of the pipe cable connection device of the present invention.

FIG. 15 is an explanatory diagram of a third step of the branch connection method of the pipe cable connection device according to the present invention.

FIG. 16 is an explanatory diagram of a fourth step of the branch connection method of the pipe cable connection device according to the present invention.

FIG. 17 is a side view for explaining an example of a conventional standard closure.

FIG. 18 is a side view for explaining a prior art of the pipe cable connecting device, in which a part of a connecting portion protection member is cut away.

[Explanation of symbols]

1a-1d: pipe cable, 2a-2d: pipe, 3
a to 3c: fastening members, 4a to 4d: linear sleeves, 5a
... 5c, 23a, 23b ... gasket, 6 ... T-shaped branch sleeve joint, 7a-7c ... gasket, 8a-8d ...
Pipe connector, 9, 62 ... connecting pipe, 11a-1
1c, 12a to 12c, 21a, 21b, 22a, 22
b, 24a, 24b, 25a, 25b: washer, 13: first stepped part, 14: second stepped part, 31a, 31b: tensile strength member, 32: cylindrical connecting fitting, 41a, 41b: branch connection pipe , 51 are Y-shaped branch sleeve joints, 61 ...
Sleeve joint, 71a, 71b ... linear sleeve, 81
a to 81c: straight sleeve, 82: sleeve joint for T type branch.

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Toshio Kaneko 1-3-1 Uchisaiwaicho, Chiyoda-ku, Tokyo Tokyo Electric Power Company (72) Inventor Shigeharu Niwa 1-3-1 Uchisaiwaicho, Chiyoda-ku, Tokyo East Kyo Electric Power Company

Claims (18)

[Claims] 1. A pipe cable connecting device for interconnecting a plurality of pipe cables each having at least one pipe, comprising: pipe connecting means for connecting corresponding ends of the pipes; A pipe cable connection, comprising: a tubular member to be covered; and an attaching means having an insertion hole through which the pipe cable is inserted, and being attached to an end of the tubular member and attaching the pipe cable to the tubular member. apparatus. 2. The pipe cable connection according to claim 1, wherein said attachment means has compression holding means for pressing an outer periphery of said pipe cable and holding said pipe cable inside said tubular member. apparatus. 3. The fixing device according to claim 2, wherein said mounting means includes a tightening means for pressing and tightening said compression gripping means when said mounting means is inserted into an end of said tubular member.
A pipe cable connection device according to item 1. 4. The pipe cable connection device according to claim 2, wherein the tubular member has a stepped portion on an inner wall of the tubular member for regulating an insertion depth of the compression gripping means. . 5. The tubular member according to claim 1, wherein said tubular member has a plurality of tubular members for gripping cables and at least one tubular member for joint for connecting said tubular members for gripping cables. 5. The pipe cable connection device according to any one of 4. 6. The apparatus according to claim 5, further comprising a seal member that seals at least a side of the cable holding tubular member near a connecting portion between the cable holding tubular member and the joint tubular member. The pipe cable connection device according to the above. 7. The pipe cable connecting device according to claim 5, wherein the joint tubular member has a tubular branch portion on an outer peripheral surface to which the cable grip tubular member is connected. . 8. The pipe cable according to claim 1, wherein the pipe connecting means includes a connecting pipe and pipe connectors attached to both ends of the connecting pipe. Connection device. 9. The pipe connecting means has a plurality of connecting pipes and a plurality of pipe connectors attached to both ends of the connecting pipe, and the plurality of pipe connectors are integrated at each end. The pipe cable connection device according to claim 8, wherein the pipe cable connection device is used. 10. The pipe cable according to claim 1, wherein the pipe cable has a strength member, and opposite ends of the strength member are connected via at least one cylindrical connecting member.
10. The pipe cable connection device according to any one of claims 9 to 9. 11. A pipe cable connection method for connecting between a plurality of pipe cables having at least one pipe, wherein a required number of mounting means and cylindrical members are inserted through the plurality of pipe cables and connected. Connecting the ends of the pipes to be connected via pipe connecting means, moving the tubular member, inserting the attaching means into the end of the tubular member, and attaching the pipe cable to the tubular member. A pipe cable connection method. 12. A pipe cable connecting method for connecting a plurality of pipe cables having at least one pipe, wherein a mounting means and a tubular member for holding a cable are inserted for each pipe cable, and the pipe connecting means is connected to a joint. End of the pipe to be connected to each other through the pipe connection means, and the cable gripping tubular member is moved and connected to the joint tubular member, and the mounting is performed. A method for connecting a pipe cable, characterized in that a means is inserted into an end of the cable gripping tubular member and the pipe cable is attached to the cable gripping tubular member. 13. The pipe connecting means has a connection pipe and pipe connectors attached to both ends of the connection pipe, and a pipe member for the joint is provided with a seal member attached near the pipe connector. The pipe cable connection method according to claim 11, wherein the pipe cable is inserted. 14. A first pipe cable having a plurality of pipes and a desired pipe of the second pipe cable is connected to a third pipe cable having at least one pipe via a pipe cable connecting device having a cylindrical branch portion. In a pipe cable connection method for branch connection to a desired pipe, an attaching means and a cylindrical member are inserted into a third pipe cable, and a desired pipe end of the first and second pipe cables is connected to the third pipe cable. The end of the desired pipe is connected to the end of the tubular member by connecting the end of the tubular member by moving the tubular member and connecting to the tubular branch portion by moving the tubular member. 3. A pipe cable connection method according to claim 3, wherein the pipe cable is attached to the tubular member. 15. After a seal member for sealing at least the cylindrical member side is provided in the vicinity of a connecting portion between the cylindrical branch portion and the cylindrical member, a desired pipe end of the first pipe cable is provided. 15. The pipe cable connection method according to claim 14, wherein a desired pipe end of the second pipe cable is connected via pipe connection means. 16. The pipe cable connection method according to claim 14, wherein a sealing process is performed on an end of the pipe having no other pipe to be connected by branch connection. 17. The pipe cable connection device is a joint tubular member having a tubular branch portion, wherein the tubular branch portion is in a sealed state in an unbranched state, and is opened at the time of branch connection. The pipe cable connection method according to any one of claims 14 to 16, wherein the tubular members are connected. 18. The pipe connecting means has a branch connection pipe, and a desired pipe end of the first pipe cable and a desired pipe end of the second pipe cable are provided at each end of the branch connection pipe. 18. The pipe cable connection method according to claim 14, wherein an end of the pipe is connected by a pipe connector.