JPH11313423A - Piping installation carriage device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a piping installation carriage device with which it is not necessary to lay rails in a sheath pipe, the inclination of a carriage including pipes can be avoided, savings of a material cost and an installation cost and the reduction in the installation lead time can be realized and the installation work is facilitated, when pipes for wiring cables are pulled into the sheath pipe embedded in the ground for the installation. SOLUTION: A carriage 11 which is loaded with pipes 6 for wiring cables and transferred, when the pipes 6 are pulled into a sheath pipe 1 embedded in the ground, has ball wheels 24 which enable the free rotation of the carriage 11. A pendulum function which makes the carriage 11 horizontal in a direction perpendicular to a progressing direction is added to the carrier 11. The pendulum function suppresses the rotating moment in a direction perpendicular to the advancing direction of the carriage 11. With this constitution, the inclination of the carriage 11 including the pipes 6 can be avoided, when the pipes 6 are pulled into the sheath pipe 1, so that a group of pipes 6 can be installed horizontally in the longitudinal direction in the sheath pipe 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bogie device for installing pipes, which is used to draw and install a pipe for cable wiring into a sheath pipe buried underground.

[0002]

2. Description of the Related Art In laying a power cable, a method of laying a cable under a road surface instead of an overhead line is to bury a sheath pipe 1 such as a fume pipe in the ground as shown in FIG. A piping pipe for cable wiring is drawn in and installed between the starting shaft 2 and the reaching shaft 3, and thereafter a cable is wired in the piping pipe.

In order to install a pipe for cable wiring in the above-mentioned sheath tube 1, as shown in FIGS.
A plurality of piping pipes 6 each having a predetermined length are fixed on a carriage 5 which can be moved by a lower wheel 4 by holding the spacers 7 and tightening a band 8. 5 is inserted into the sheath tube 1 from the starting shaft 2 and is pulled in from the reaching shaft 3 side. The pipes 6 are sequentially connected by the joints and moved by the trolley 5 to continue the drawing. It is set up to reach.

[0004] By using a bogie 5 which can be moved in the traveling direction of the sheath tube 1 by the wheels 4 and installing the piping pipes 6 in the sheath tube 1 for a long distance, the piping pipes 6 and the joints are connected. Due to the distortion, the resistance of the inner wall of the sheath tube 1 and the imbalance of the force required for inserting the bogie 5 into the sheath tube 1, the rotational moment in the direction perpendicular to the traveling direction (the roll direction with respect to the sheath tube 1) is increased. Then, the carriage 5 including the pipe 6 is tilted, and the pipe 6 cannot be arranged in a straight line.

Conventionally, as shown in FIGS. 6 to 8, a rail 9 is laid along a longitudinal direction at a lower portion in a sheath tube 1 to prevent the above-described inclination from occurring. A guide member 10 sandwiching the rail 9 is provided at a lower portion, and the occurrence of the inclination of the moving carriage 5 is prevented by the rail 9 and the guide member 10.

[0006]

However, the sheath tube 1
The method of laying the rail 9 along the length direction at the lower part of the inside requires the generation of the amount of the rail material, the laying cost, the extension of the construction period due to the laying of the rail 9, and the work of laying the rail in the sheath tube 1. Is quite hard work.

In addition, since a space for the rail 9 and the guide member 10 is required in the sheath pipe 1 in addition to the space for the pipe pipe 6, the space for the pipe pipe 6 is reduced, and the diameter of the sheath pipe 1 is increased. This not only increases the material cost and the construction cost, but also causes an extension of the construction period.

Therefore, an object of the present invention is to prevent a truck including a piping pipe from inclining without laying a rail in a sheath pipe, to reduce material and construction costs, to shorten the construction period, and to reduce the work time. It is an object of the present invention to provide a piping installation cart device capable of facilitating the installation.

[0009]

Means for Solving the Problems In order to solve the above-mentioned problems, the invention according to claim 1 is directed to a case where a piping pipe for cable wiring is drawn and installed in a sheath pipe buried underground. A configuration in which a bogie that can be freely rotated is provided on a bogie that moves in the sheath tube while being mounted and fixed, and a pendulum function with a restoring force that becomes horizontal in the direction perpendicular to the traveling direction is added to this bogie. Is adopted.

According to a second aspect of the present invention, in the first aspect of the present invention, the pendulum function is formed so that the weight distribution of the spacer provided on the carriage becomes heavy at the lower portion in order to mount and fix the pipe pipe on the carriage. It adopts the configuration described.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. Note that the same reference numerals are used for the same portions as those in the conventional technology shown in FIGS.

As shown in the drawing, a group of pipes 6 for cable wiring is provided with a plurality of carts 1 to draw and install the pipes 6 for cable wiring in a sheath pipe 1 buried underground.
1 and a spacer 12 and a band 13 are fixed on the sheath tube 1 under the condition of being accommodated in the sheath tube 1.
4 is used.

First, the leading bogie 14 includes an outer cylindrical portion 15 having a cylindrical shape having an outer diameter to be accommodated in the sheath tube 1, an outer peripheral portion at both front and rear ends of the outer cylindrical portion 15, and an inner peripheral surface of the sheath tube 1. A large number of wheels 1 mounted in a radial arrangement so as to abut and roll in the forward direction
6 and a pendulum part 17 incorporated in the outer cylinder part 15, and the sheath tube 1 is winched by a winch via a wire 19 connected to a connection part 18 provided at the lower end of the outer cylinder part 15.
When the leading bogie 14 is moved inside the sheath tube 1, the wheel 16 prevents the outer cylindrical portion 15 from contacting the inner peripheral surface of the sheath tube 1.

The pendulum 17 is filled with a heavy object 21 such as concrete or sand into a container 20 having an outer diameter and a substantially semi-cylindrical cross-section to be accommodated in the outer cylindrical portion 15. The upper position of the front and rear ends is pivotally attached to the front and rear end walls of the outer cylinder portion so as to be swingable in a direction perpendicular to the traveling direction of the leading bogie 14 in a hanging manner, or the outer cylinder portion 15 Between the inner surface of the container 20 and a large number of free balls and rollers.
And is movable in a direction perpendicular to the traveling direction of the leading truck 14.

The center of gravity of the pendulum portion 17 is positioned below by the support capable of being suspended and swinging with respect to the outer cylinder portion 15, so that the direction perpendicular to the traveling direction of the leading bogie 14 is achieved. Will have horizontal restoring force.

Next, the bogie 11 has a leg 23 fixed in the moving direction at both ends of a support base 22 which is formed in an arc shape along the inner circumferential direction of the sheath tube 1. The bogie 11 is formed by providing ball wheels 24 capable of free rotation on the lower surfaces at both ends thereof, and the carriage 11 can freely move in the sheath tube 1, and a plurality of pipe pipes having a predetermined length on the support base 22. 6 is fixed by holding the predetermined arrangement by the spacer 12 and tightening the band 13, and the bogie 11 is provided with a pendulum function having a restoring force to be horizontal in a direction perpendicular to the traveling direction.

In the illustrated embodiment, the spacer 12 installed on the support base 22 of the carriage 11 is a lower spacer 1 in the illustrated embodiment.
2a, the intermediate spacer 12b, and the upper spacer 12c are divided into three parts.
Four division, five division, and the like can be appropriately selected. The upper and lower edges of these spacers provide arcuate recesses for supporting the pipes 6 in a predetermined arrangement, the spacers are stacked with the pipes 6 interposed, and the pipes 13 are fixed to the carriage 11 by tightening the band 13. The addition of the pendulum function to the cart 11
2, the lower spacer 12a is formed by adding or filling with sand or concrete to make the intermediate spacer 12b and the upper spacer 12c lighter.

That is, if the weight distribution of the spacers 12 fixed on the carriage 11 and supporting the pipe 6 is set so that the lower part is heavy and the upper part is light, the center of gravity of the carriage 11 is located below. As a result, the bogie 11 has a restoring force that is horizontal in a direction perpendicular to the traveling direction, and the bogie 11 including the pipe 6 is connected to the sheath tube 1 by the freedom of movement of the ball wheels 24. Will always try to return to the lowest position.

The pendulum portion 17 and the bogie 11 of the leading bogie 14 are connected by a connecting member 25 which projects rearward from the rear end of the container 20 of the pendulum portion 17 and the leg member 23 of the bogie 11 to the rear. The horizontal restoring force of the pendulum portion 17 is transmitted to the carriage 11 via the connecting member 25. In addition, the following front and rear carriages 11 are also leg members 23.
Are sequentially connected via the connecting rod 26.

The connecting member 25 transmits the pulling force of the leading bogie 14 to the succeeding bogie 11 and at the same time
7 and the trolley 11 are integrally moved in the swinging direction of the pendulum 17, and the connecting rod 26 is also adapted to integrally move the front and rear trolleys 11 in the swinging direction of the pendulum 17.

The leading bogie according to the present invention is configured as described above. In order to install the pipe 6 for cable wiring in the sheath pipe 1 buried underground, the bogie 1 is positioned at the forefront.
The front bogie 14 is connected to the front of the vehicle 1 via a connecting member 25, and the front and rear bogies 11 are also connected via connecting rods 26. A plurality of piping pipes 6 having a predetermined length Is mounted and fixed by the holding of the spacer 12 and the tightening of the band 13, and the leading truck 17 and the group of pipes 6 are inserted into the sheath tube 1 from the starting shaft 2 together with the truck 11.

A winch wire 19 provided on the arrival shaft 3 is connected to the connection portion 18, and the leading bogie 14 and the group of piping pipes 6 are drawn into the sheath tube 1 by the winch. At the end, the next pipe pipe mounted and fixed on the trolley 11 is connected with a joint, and the pipe pipe 6 is installed so that the leading end of the pipe pipe 6 reaches the reaching shaft 3 by repeating the drawing and the connection extension of the pipe pipe 6.

When the group of piping pipes 6 is retracted, the leading bogie 14 guides the leading end of the piping pipe 6 to be retracted in the longitudinal direction of the sheath pipe 1, but the outer cylindrical portion 15 is sheathed by the wheels 16 at the front and rear ends. To move in the pipe 1, the pipe 6
The joint may be distorted, the resistance of the inner wall of the sheath tube 1 and the imbalance in the force required to insert the bogie 11 into the sheath tube 1 may generate a rotational moment in a direction perpendicular to the traveling direction.

However, the pendulum 17 inside the outer cylinder 15 has a restoring force that is horizontal in a direction perpendicular to the traveling direction of the leading bogie 14, and the outer cylinder 15 is rotated. The pendulum 17 is also kept horizontal.

A cart 11 for supporting a group of piping pipes 6
The bogie 11 itself has a restoring force that is horizontal in a direction perpendicular to the traveling direction, and therefore, the subsequent bogie 11 connected to the pendulum portion 17 via the connecting member 25 is a ball wheel 24 that can freely rotate. Because of the movement, the horizontal restoring force of the pendulum portion 17 is transmitted, and the horizontal restoring force of the pendulum portion 17 suppresses the bogie 11 from generating a rotational moment in a direction perpendicular to the traveling direction. At the time of retraction, the carriage 11 including the pipe 6 does not tilt, and the group of pipes 6 can be installed horizontally in the longitudinal direction in the sheath pipe.

In the above embodiment, the leading bogie 14 having a pendulum function having a restoring force horizontal to the direction perpendicular to the traveling direction and the bogie 11 having the same pendulum function are used in combination. The use of the leading truck 14 may be omitted, or a vehicle having no pendulum function may be used, and only the pendulum function of the truck 11 may be used alone to prevent the truck 11 from tilting.

[0027]

As described above, according to the present invention, a bogie that can move freely in a sheath pipe by mounting and fixing a pipe pipe is provided with a ball wheel that can freely rotate, and this bogie is perpendicular to the traveling direction. A pendulum function with a restoring force that is horizontal in the direction of the cable is added, so when installing cable wiring in a sheath pipe buried underground, the pendulum function of the bogie
There is no inclination of the bogie including the piping pipe when the piping pipe is pulled in, and the piping pipe group can be installed horizontally in the length direction in the sheath pipe.

In addition, since the bogie including the piping pipes can be prevented from being inclined without installing rails or the like in the sheath pipe, the inside of the sheath pipe can be effectively used for the space of the piping pipe, and only the material cost and the construction cost can be reduced. In addition, the construction period can be shortened, and the work in the sheath tube can be reduced.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional side view showing a use state of a leading bogie.

FIG. 2 is a rear view of the leading bogie.

FIG. 3 is a longitudinal sectional side view showing the structure of a bogie and piping pipes.

FIG. 4 is a plan view of a cart.

FIG. 5 is a longitudinal sectional side view showing an embedded state of a sheath tube.

FIG. 6 is a longitudinal sectional side view showing a use state of a conventional bogie.

FIG. 7 is a longitudinal sectional side view showing the structure of a conventional bogie and piping pipes.

FIG. 8 is a plan view of a cart.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Sheath tube 11 Dolly 14 Leading dolly 15 Outer cylinder part 16 Wheel 17 Pendulum part 18 Spacer 20 Container 21 Heavy object 25 Connection member

Claims (2)

[Claims] When a piping pipe for cable wiring is drawn and installed in a sheath pipe buried underground, a ball wheel capable of freely rotating on a bogie that moves inside the sheath pipe by mounting and fixing the pipe pipe. And a bogie device for piping installation in which the bogie is provided with a pendulum function having a restoring force to be horizontal in a direction perpendicular to the traveling direction. 2. The piping installation according to claim 1, wherein the pendulum function is formed so that the weight distribution of the spacer provided on the carriage becomes heavy at the lower part in order to place and fix the piping pipe on the carriage. Dolly equipment.