JPH08214434A - Cable accessory structure - Google Patents

Abstract

PURPOSE: To provide a cable accessory structure, which completely prevents a contact from the outside, in which an operator can conduct the maintenance work of a cable by himself, which can be executed easily at low cost even in a narrow ground area and by which the protection and safety of the cable are improved. CONSTITUTION: A drainage canal 15, an air suction-exhaust path 17 for emergency and a path 18 for an emergency member are partitioned and installed on the inside, path pipes having structure, in which floor materials 4, in which rails 5 having rack surfaces are mounted on top faces, are set up integrally on the undersides of cylindrical bodies, in which a plurality of retaining tools 3 are formed to the top faces of inner walls, are inserted into a connecting cylinder 23 from the opposite directions so as to be abutted in the connecting cylinder 23, and the abutted path pipes 2 are connected continuously with adhesives 27 injected from communicating holes 25, thus forming an underground cable path 1. A self-advancing repair rolley 6, in which the wheels of gears are fitted to the underside of a bench, on which an operator 29 lies, is made to travel on the rails 5, and the cable 28 is retained to the retaining tools 3.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cable installation structure for installing a telephone line, an electric wire, an optical fiber, a cable for cable television, a power line, etc. (collectively referred to as a cable in this specification) in the ground.

[0002]

2. Description of the Related Art In a conventional cable laying structure in which a cable is installed in the ground, a plurality of U-shaped blocks are continuously arranged so that the upper opening surface of the U-shaped blocks is an extension of the ground surface. A buried underground cableway was formed at the side edge. The cable was housed in this passage, and a concrete lid plate was placed on the upper opening surface of the U-shaped block to attach the cable underground. In addition, in addition, a tube body with a diameter that humans cannot enter is embedded in the underground under the road etc. in a continuous state to form an underground cable path, and a cable is attached to this tube through the cable. . In addition to this, an underground passage is provided in the basement of a road, which is large enough for an operator to stand up, and a cable is laid on the inner wall surface of the underground passage.
In the cable attachment structure where the underground cable path is formed by the above U-shaped block, even if an outside person can easily touch the cable by opening the lid plate placed on the U-shaped block, the protection and safety of the cable can be improved. It was lacking.
In addition, in the cable attachment structure in which the underground cable path is formed by a cylinder with a diameter that humans cannot enter, when performing maintenance work such as when the cable laid inside the buried cylinder is disconnected midway, remove the cable from the cylinder once. Unless it was pulled out, maintenance work could not be performed, which was very troublesome. If the underground passage is an underground cable route, the underground passage must be constructed underground, and construction can only be done in a place where a wide land can be secured, such as under a road. It was expensive.

[0003]

SUMMARY OF THE INVENTION The problems to be solved by the present invention are to solve these problems of the prior art, to reliably prevent external contact, and to allow the operator to perform maintenance work on the cable by himself. Another object of the present invention is to provide a cable attachment structure that can be easily and inexpensively constructed even in a small land area and improves cable protection and safety.

[0004]

Means for Solving the Problems The constitution of the present invention which has solved the above problems is as follows: 1) A passage tube provided with a locking tool for locking a cable on the upper surface of an inner wall with a diameter enough for a worker in a recumbent state to enter. A plurality of underground cables are embedded in the ground by connecting means to form an underground cable path, and there is a workbench for placing the operator in a recumbent state, and the operator moves inside the underground cable path. A self-propelled work vehicle is provided in the underground cable path, an entrance for a worker is provided in the underground cable path, and the cable is attached to the inner wall of the underground cable path by locking the cable to the locking tool. 2) A cable attachment structure characterized by: 2) A plurality of annular grooves, which are partially closed, are provided on the inner peripheral surface of a short tubular body fitted outside the abutting portion of the passage pipe, and both sides of the closed portion of the annular groove are provided. Connection with a structure in which a communication hole that communicates with the outside of the cylinder is provided in each groove The passage pipes to be connected to the inside are fitted in mutually opposite directions, the adhesive is injected into the annular groove from one of the communication holes to integrally connect the two passage pipes and the connecting cylinder, and the passage pipes are continuously provided. 1) in which the connection means is
Cable attachment structure described 3) Drainage channel for discharging condensed water, rainwater, and groundwater generated in the underground cable channel, and an emergency intake / exhaust channel for sending air to workers in the underground cable channel in an emergency. The emergency member passage for accommodating emergency members such as a power supply line for a fire and a water supply pipe for extinguishing fire is provided below the floor surface of an underground cable path on which a self-propelled work vehicle travels, and the above 1) or 2 is provided. ) Any cable attachment structure 4) A rail is attached to the floor surface in the underground cable path, and the rail is caused to travel by the wheels provided on the lower surface of the work table on which a worker in a recumbent state is placed, The cable attachment structure according to any one of 1) to 3) above, wherein a self-propelled work vehicle in which the worker drives the wheels with a provided drive motor is movable in the underground cable path. 5) Use the wheels of the self-propelled work vehicle as pinion The cable attachment structure according to 4) above, in which the upper surface of the rack is a rack surface that meshes with the same pinion 6) Any of the above 1) to 5) in which a control section is provided for the operator to operate the self-propelled work vehicle with his / her feet It has the cable attachment structure described above. It should be noted that the self-propelled work vehicle is not limited to the one that moves on the rail, and the case where the wheels of the self-propelled work vehicle are brought into direct contact with the inner wall of the underground cable road and the self-propelled work vehicle is moved to the ground. It may be slid into the middle cableway and moved. The power of the drive motor that drives the wheels is transmitted from a battery loaded in the self-propelled work vehicle or transmitted via a rail.

[0005]

According to the present invention, the worker enters the underground cable path formed by connecting a plurality of passage pipes from the ground through the doorway. In addition, this worker lies on the upper surface of the workbench of the self-propelled work vehicle moving in the underground cable path, and the operator himself operates the self-propelled work vehicle to lie in the underground cable path on its back. Move as it is. To lay the cable in the underground cable route, keep the worker moving in the underground cable route on his / her back on the locking tool provided on the upper surface of the inner wall of the passage pipe forming the underground cable route. Work on and lock the cable by yourself. In this way, the worker can move in the underground cable path, so that the cables can be connected to each other in the underground cable path, and the maintenance work of the installed cable can be done with the cable installed in the underground cable path. Moreover, even when a plurality of types of cables are laid in the underground cable path, the cables can be laid in an orderly manner, which facilitates maintenance work. By laying the cable in the underground cable path, it prevents interference from the ground and improves protection and safety. The self-propelled work vehicle may be always placed in the underground cable path, or may be brought in by the operator when entering the underground cable path. In addition, an operator in a recumbent state in the underground cable path can reach and reach for the cable to be laid by locking the cable to the locking tool on the upper surface of the inner wall of the passage tube. Since the passage pipe has a diameter that allows maintenance work of the installed cable,
When burying passage pipes, burying work can be performed on a small land area, and construction can be performed easily and at low cost.

According to the connecting means as set forth in claim 2,
A passage pipe connected to the inside of a connecting cylinder having a plurality of annular grooves, a closed portion, and a communicating hole on the inner peripheral surface is inserted from mutually opposite directions, and the passage pipes are butted against each other in the connecting cylinder. By injecting the adhesive, the annular groove on the inner peripheral surface of the connecting cylinder is filled with the adhesive, and the passage pipe and the connecting cylinder are bonded by this adhesive, and the abutted passage pipes are continuously provided. For this reason, the passage pipes are continuously provided without being displaced, and an underground cable path without a step or a gap can be formed. The other communication hole of the closed portion of the annular groove serves as an air exhaust hole for the annular groove by the injected adhesive, and the injected adhesive is discharged from this communicating hole to fill the annular groove. Is to understand. Claim 3
As described, if a drainage channel, an emergency intake / exhaust channel, and an emergency member channel are provided below the floor on which the self-propelled vehicle travels, the worker is moving or working in the underground cable route. In the event of an emergency such as a fire, air can be supplied to the worker from the emergency intake / exhaust passage, and with emergency members such as the emergency power supply line and fire extinguisher water pipe in the emergency member passage. Therefore, the worker is protected safely from an emergency. According to claim 5, a self-propelled work vehicle having a pinion that meshes with the rack surface on a rail whose top surface attached to the floor in the underground cable path is a rack surface is allowed to travel. For example, the self-propelled work vehicle can move without slipping even in a place where the underground cable path is inclined. If the control part of the self-propelled work vehicle that can be operated by the operator's feet is provided as described in claim 6, the operator's hand can move in the underground cable path while continuing the workability. Will be better.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. 1 is a vertical sectional view showing the present embodiment, FIG. 2 is a plan view showing the present embodiment, FIG. 3 is a sectional view taken along the line AA in FIG. 2, and FIG.
5 is a sectional view taken along line BB in FIG. 5, FIG. 5 is an explanatory view showing the self-propelled work vehicle in this embodiment, FIG. 6 is a plan view showing the self-propelled work vehicle in this embodiment, and FIG. 8 is a plan view of the connecting cylinder in the present embodiment, and FIG. 9 is C- in FIG.
C sectional view, FIG. 10 is a DD sectional view in FIG. 7.

This embodiment (see FIGS. 1 to 10) FIG. 1 is a longitudinal sectional view showing this embodiment, FIG. 2 is an explanatory view showing a plane state of this embodiment, and FIG. 3 is A-A in FIG. Sectional view, Figure 4
2 is a sectional view taken along line BB in FIG. 2, FIG. 5 is an explanatory view showing the self-propelled work vehicle in this embodiment, FIG. 6 is a plan view showing the self-propelled work vehicle in this embodiment, and FIG. 7 is a passage pipe. And FIG. 8 is a plan view of the connecting cylinder in the present embodiment, FIG. 9 is a sectional view taken along line CC of FIG. 8, and FIG. 10 is a sectional view taken along line DD of FIG. Is. In the figure, 1 is an underground cable path formed by connecting a plurality of passage tubes 2 in series, and 2 is a drainage path 15, an emergency intake / exhaust path 17, and an emergency member path 18 which are provided inside to form an upper surface. A flooring 4 having a drainage hole 16 communicating with the drainage channel 15 and a pair of rails 5 having an upper surface of a rack surface is made of vinyl chloride, and a cylindrical body having a diameter of about 800 mm in which a plurality of locking members 3 are provided on the upper surface of the inner wall. A passage tube with a structure integrally attached to the lower surface of the
An optical fiber cable, a locking tool for locking a cable 28 such as a cable for TV, 4 is a floor material, 5 is a rail, and 6 is a gear wheel 8 driven by a drive motor 9 with a speed reducer provided on a work table 7. Self-propelled work vehicles in which the four corners of the lower surface of the work table 7 are meshed with the rack surface of the upper surface of the rail 5,
Is the workbench of the self-propelled work vehicle 6, 8 is the wheel of the self-propelled work vehicle 6,
Reference numeral 9 is a drive motor, 10 is a battery which is a power source of the drive motor 9, 11 is a drive gear which is attached to the rotation shaft of the drive motor 9 and meshes with the wheels 8 to transmit the power of the drive motor 9 to the wheels 8, 12 is an operator A forward foot lever that tilts upright on the workbench 7 at the position of the foot 29 and rotates the drive motor 9 forward to move the self-propelled work vehicle 6 forward, 13 is an operator 29
A retreat foot lever that tilts upright on the workbench 7 at the foot position and reversely rotates the drive motor 9 to retract the self-propelled work vehicle 6, and 14 is tiltable on the workbench 7 at the foot position of the worker 29 A stop foot lever to stop the drive motor 9 to stop the self-propelled work vehicle 6, a drainage channel 15; a drainage channel 16 for introducing rainwater, condensed water, and groundwater to the drainage channel 15; Exhaust passage, 18 is an emergency member passage accommodating an emergency power supply line 19 and a fire extinguishing water supply pipe 20, 19 is an emergency power supply line, 20 is a fire extinguishing water supply pipe, 21 is a floor surface, and 23 is partially closed A communication hole 2 in which six annular grooves 24 each having a portion are provided on the inner wall, and the grooves on both sides of the closed portion 26 communicate with the outside respectively.
5 is a connecting cylinder having a structure, 24 is an annular groove of the connecting cylinder 23,
Reference numeral 25 is a communication hole of the connecting cylinder 23, 26 is a closed portion of the connecting cylinder 23, 27 is an adhesive for the connecting cylinder 23, 28 is a telephone line, an electric wire, or the like.
Cables such as optical fiber cables and cables for televisions, 29 is an operator, 30 is an entrance / exit, 31 is a road, 32 is a manhole, 33 is a step, 34 is underground, 35 is ballas, 36 is air into the underground cable path 1. It is a ventilator that forcibly sends in.

In the present embodiment, in order to connect a plurality of passage pipes 2 in series, the passage pipes 2 are fitted in the connecting pipes 23 from opposite directions, and the two passage pipes 2 are abutted in the connecting pipe 23. ,
The adhesive 27 is injected from one of the communication holes 25 to connect the connecting cylinder 23.
The annular groove 24 is filled with the adhesive 27, the connecting tube 23 and the passage tube 2 fitted in the connecting tube 23 are connected, and a plurality of passage tubes 2 are connected in series. The other communication hole 25 functions as a discharge hole for discharging the air inside when the adhesive 27 is filled, and the adhesive 27 is discharged from the other communication hole 25 so that the adhesive 27 is completely filled. Let me know.
In this way, no step is formed in the continuous portion of the passage pipe 2 continuously provided, and the underground cable path 1 having no step can be formed. The plurality of passage pipes 2 connected to each other are buried in the underground 34 about 2000 mm below the road 31,
To form. A ballast 35 is laid under the buried passage pipe 2. In addition, the upper wall of a part of the passage pipe 2 is opened and the road 3
An entrance 30 communicating with the upper surface 1 is provided, and the worker 29 enters and exits through the entrance 30 through step 33. The doorway 30 is normally closed by a manhole 32. For the movement in the underground cable path 1, the worker 29 always moves by the self-propelled work vehicle 6 (about 6 km / h) provided in the underground cable path 1. When the worker 29 enters the underground cable path 1, the ventilation device 36 forces air from the ground to constantly perform ventilation. Further, the worker 29 who enters the underground cable path 1 carries a wireless communication device and communicates with a worker on the ground. The operator lies on the workbench 7 of the self-propelled work vehicle 6 on his / her back, puts his left foot on the stop foot lever 14, and puts his right foot on the forward foot lever 12 or the backward foot lever 13 to tilt the foot levers 12, 13, 14 to drive motors. 9 forward rotation, reverse rotation, stop,
The operator operates the self-propelled work vehicle 6 with his / her feet to move it. Since the wheels 8 of the self-propelled work vehicle 6 are meshed with the rails 5, even if the midway of the underground cable path 1 is an inclined surface, the wheels 8
The self-propelled work vehicle 6 can move without slipping. Therefore, in order to lay the cable 28 in the underground cable path 1, the operator 29 moves the cable 28 brought in from the entrance 30 while moving in the underground cable path 1 using the self-propelled work vehicle 6. The cable 28 to be laid is locked to the stopper 3 so that the cable 28 of a plurality of types is laid.
Even if it is 8, it can be laid in order in the underground cable path 1. Further, it is possible to easily connect the cables 28 to each other in the underground cable path 1. When the cable 28 is laid in the passage pipe 2 having the entrance 30 open, in order to secure the entrance 30, the cable 28 is laid sideways and locked to the locking tool 3, and the cable 28 interferes with the entrance and exit of the worker 29. Install so that it does not become The maintenance work of the laid cable 28 may be performed by using the self-propelled work vehicle 6 along the cable 28 laid by the worker 29 himself. or,
When the damaged portion of the cable 28 is found, the worker 29 can perform the repair work by himself / herself in the laid state, so that the trouble of pulling out and repairing all the damaged cables 28 can be saved. Further, since the cable 28 is attached to the underground 34, it is protected from external interference and the protection and safety are improved. Condensed water, groundwater, rainwater, etc. generated in the underground cable path 1 flow down to the floor surface 21 and flow into the drainage path 15 through the drainage holes 16 provided in the floor material 4 to be drained.

If the battery 10 of the self-propelled work vehicle 6 goes up during the work in the underground cable path 1, the emergency power line 19 in the emergency member passage 18 inside the flooring 4 is used for the battery. Can charge 10 and self-propelled work vehicle 6
Can be safely moved to the entrance / exit 30. In the event that a worker 29 enters the underground cable path 1 and a fire occurs in the underground cable path 1, the operator 29 is immediately notified from the emergency intake / exhaust path 17 inside the floor material 4. Air is supplied and water is jetted from the fire extinguishing water supply pipe 20 in the emergency member passage 18 to quickly extinguish the fire and rescue the worker. In this way, the worker 29 can be safely rescued even if an emergency occurs during the work of the worker 29 in the underground cable path 1. As described above, the battery 10 of the self-propelled work vehicle 6 can be charged at any time by using the emergency power supply line 19, and the air supplied to the worker 29 is secured by using the emergency intake / exhaust passage 17 even in an emergency. Underground cable route 1
The entrances / exits 30 provided in the building can be provided at intervals of several kilometers, and may be provided at longer intervals between cities.

To move the self-propelled work vehicle 6 in the underground cable path 1, the wheels 8 of the gears provided on the lower surface of the work table 7 are laid in the underground cable path 1 so that the upper surface is along the rail 5 having the rack surface. The flat rail 5 is not limited to sliding
There are cases where the wheel 8 slides on the top with a smooth circumference, and cases where the wheel 8 moves while directly contacting the inner wall of the passage tube 2. In addition, when the distance of the underground cable path 1 is short, the emergency intake / exhaust path 1 is installed in the underground cable path 1.
7 and the emergency member passage 18 may not be provided. The diameter of the passage tube 2 is not limited to 800 mm, but 600 mm to 80 mm.
In some cases, the passage tube 2 having a diameter of 0 mm is used. Further, the depth of burying the passage pipe 2 is not limited to 2000 mm, and the depth of burying can be changed according to the situation.

[0012]

As described above, according to the present invention, it is possible to bury underground a plurality of passage pipes having a diameter large enough for an operator in a recumbent state to continuously bury them underground. Since the medium cable path can be formed, the construction period can be shortened and the construction cost can be greatly reduced. In addition, a self-propelled work vehicle that moves a recumbent worker on a workbench in the underground cable path allows the operator to easily and reliably move in the underground cable path by his / her own operation. You can lay cables in the underground cable route with your own hands, you can quickly and reliably perform cable connection and maintenance work, prevent buried cables from being disturbed from the outside, safety and security It will improve the sex. In addition, even if there are multiple types of cables, they can be laid in an orderly manner, maintenance work can be performed easily, and safety and security can be improved.

If a plurality of passage pipes are connected by the connecting means according to the second aspect of the present invention, the abutted passage pipes can be connected by the connecting cylinder without causing a step difference, and an underground cable path without a step difference. Can be easily, quickly and surely formed. According to the third aspect, since the drainage channel, the emergency intake / exhaust channel, and the emergency member channel are provided below the floor surface on which the self-propelled work vehicle travels, the self-propelled work vehicle and the worker's There is no hindrance to the work, air can be reliably supplied to the worker in an emergency such as a fire, and the fire can be extinguished with water supplied from the fire extinguishing water supply pipe in the emergency member passage, This will improve the safety of workers in underground cableways. As described in claim 5, if the wheel of the pinion of the self-propelled work vehicle is engaged with the rail whose upper surface is the rack surface, even if there is an inclined surface in the underground cable path, the inclined surface can be swiftly and surely provided. The self-propelled work vehicle will be able to travel, and it will be possible to reliably move and work in the underground cable route. If the operator is provided with an operation section that is operated by his / her feet as in claim 6, the operator's hand can be devoted to the work, and the operator does not have to take his / her hand every movement of the self-propelled work vehicle. Workers can concentrate and perform continuous work regardless of movement, resulting in excellent workability.

[Brief description of drawings]

FIG. 1 is a vertical sectional view showing the present embodiment.

FIG. 2 is an explanatory diagram showing a planar state of the present embodiment.

3 is a cross-sectional view taken along the line AA in FIG.

4 is a sectional view taken along line BB in FIG.

FIG. 5 is an explanatory diagram showing a self-propelled work vehicle in the present embodiment.

FIG. 6 is a plan view showing a self-propelled work vehicle in the present embodiment.

FIG. 7 is an explanatory view showing connecting means for connecting passage pipes in series.

FIG. 8 is a plan view of a connecting cylinder in the present embodiment.

9 is a sectional view taken along line CC of FIG.

10 is a sectional view taken along line DD in FIG.

[Explanation of symbols]

 1 underground cable path 2 passage pipe 3 locking tool 4 floor material 5 rail 6 self-propelled work vehicle 7 workbench 8 wheels 9 drive motor 10 battery 11 drive gear 12 forward foot lever 13 reverse foot lever 14 stop foot lever 15 drainage channel 16 Drainage hole 17 Emergency intake / exhaust passage 18 Emergency member passage 19 Emergency power supply line 20 Fire extinguishing water supply pipe 21 Floor surface 22 Missing number 23 Connection tube 24 Annular groove 25 Communication hole 26 Closure part 27 Adhesive 28 Cable 29 Worker 30 Doorways 31 Roads 32 Manholes 33 Steps 34 Underground 35 Balas 36 Ventilators

Claims (6)

[Claims] 1. A ground pipe is constructed by burying a plurality of passage pipes, each having a locking tool for locking a cable on an upper surface of an inner wall thereof, in a diameter such that a worker in a recumbent position can insert the same into a continuous state by connecting means. A self-propelled working vehicle that forms a cable path and has a work table on which an operator is placed in a recumbent state and that moves in the underground cable path by the operator's own operation is provided in the underground cable path, A cable attachment structure characterized in that an entrance and exit for a worker is provided in the middle cable path, and the cable is attached to the inner wall of the underground cable path by locking the cable to the locking tool. 2. A plurality of annular grooves, a part of which is closed, are provided on the inner peripheral surface of a short tubular body fitted outside the abutting portion of the passage pipe, and groove portions on both sides of the closed portion of the annular groove are provided. A passage pipe connected to the inside of the connecting cylinder having a communication hole that communicates with the outside of the cylinder is inserted from opposite directions, and adhesive is injected into the annular groove from one communication hole to connect with the two passage pipes. The cable attachment structure according to claim 1, wherein the connecting means is formed by integrally connecting the tube and connecting the passage pipes. 3. A drainage channel for discharging dew condensation water, rainwater, and groundwater generated in the underground cable channel, an emergency intake / exhaust channel for sending air to workers in the underground cable channel in an emergency, and an emergency power source. The emergency member passage for accommodating an emergency member such as a wire or a water supply pipe for fire extinguishing is provided below the floor surface of an underground cable path on which a self-propelled vehicle travels. Cable attachment structure described. 4. A rail is attached to the floor surface in the underground cable path, and the rail is caused to travel by the wheels provided on the lower surface of the work table on which a worker in a recumbent position is placed, and a drive motor provided on the work table is used. The cable installation structure according to any one of claims 1 to 3, wherein the self-propelled work vehicle is configured so that the worker drives the wheels, and is movable in the underground cable path. 5. The wheel of the self-propelled work vehicle is a pinion, and the upper surface of the rail is a rack surface that meshes with the pinion.
Cable attachment structure described. 6. The cable attachment structure according to claim 1, further comprising a control section which is operated by an operator with his / her feet to drive the self-propelled work vehicle.