JPH11285136A - Suspension pipe for cable and sheath tube - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a suspension pipe with a simple construction for a cable and a sheath tube, whose hooks can be attached easily from the outside of the pipe, even if the diameter of the pipe is too small for an operator to reach the hook positions, and which enables cost reduction of components. SOLUTION: A shaft 3 to which an inner plate 4, a middle plate 5 and a hook 2 are attached are inserted integrally into a through-hole 1d formed in a pipe wall 1a. The shaft 3 is turned to press the inner plate 4 against the inner wall 1b of a pipe 1, and at the same time, fits the middle plate 5 to the through-hole 1d. An outer plate 6 is put on the shaft 3 and pressed against the outer wall 1c of the pipe 1. A nut which is a retaining member 7 is screwed onto the bolt part of the shaft 3 from the outside of the outer plate 6 to fix the pipe wall 1a, the inner plate 4, the outer plate 6 and the shaft 3 to each other integrally. A space defined by the middle plate 5 and the wall of the through-hole 1d is constituted so as to a fill filling material 9 through a gap 8.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a communication and power cable or a sheath tube for accommodating the communication and power cable, which is suspended and laid in a pipe for water supply and sewerage buried in the ground. The present invention relates to a suspension tube for a cable and a sheath tube.

[0002]

2. Description of the Related Art Conventionally, when an optical fiber cable is suspended in a pipe for water supply and sewerage buried in the ground, a bolt 51 is previously embedded in a pipe wall 50 as shown in FIG. Received by the saddle 53 and the saddle 53
A bolt 51 is inserted into a hole provided in the bolt, and a nut 54 is screwed and fastened to the bolt 51 for suspension.

[0003] In addition, in the case of a small-diameter pipe, a robot that travels inside the pipe is employed instead of an operator. After the robot drills a pilot hole 50a in the pipe wall 50 as shown in FIG. Optical fiber cable 52 with J-shaped anchor
A plunger pin 62 which is received by 61 and slidable with respect to the main body of the anchor 61 abuts against the bottom surface of the prepared hole 50a, and the main body of the anchor 61 is inserted into the prepared hole 50a (see FIG. 8B).

[0004] An adhesive 63 is accommodated between the plunger pin 62 and the anchor 61 main body.
When the adhesive slides into the anchor 61 body
63 is pushed by the plunger pin 62 and the plunger pin
Overflow along 62, anchor 61 outer periphery and pilot hole 50
The anchor 61 and the tube wall 50 are permeated between the wall surfaces of FIG. 8A and adhered and fixed (see FIG. 8C).

[0005]

However, in the above-mentioned conventional example, as shown in FIG. 7, the optical fiber cable 52 is supported using the saddle 53, and the nut 54 is mounted on the bolt 51 previously embedded in the tube wall 50. When suspending by screwing together,
Since the saddle 53 and the nut 54 are separate bodies, it is necessary to screw the nut 54 to the bolt 51 while supporting the saddle 53, so the mounting workability is poor. However, a small-diameter pipe makes it difficult to screw the nut 54 with the robot, so that the robot must be equipped with a complicated mechanism, which leads to an increase in cost and a long time for the mounting operation.

When an optical fiber cable 52 is supported by using an anchor 61 having a plunger pin 62 slidably incorporated therein as shown in FIG. 8, although the work can be carried out by a robot even with a small-diameter pipe, the structure of the anchor 61 itself is also possible. However, there is a problem that the fixing of the anchoring portion of the anchor 61 must be more reliably performed.

[0007] The present invention is to solve the above-mentioned problems,
The aim is to provide a cable and sheath tube that can easily attach the hook from the outside of the tube even if the worker cannot reach it with a small diameter tube, the structure is simple and the parts cost can be reduced. It will not be provided.

[0008]

According to the present invention, there is provided a cable for connecting a cable and a sheath pipe for communication and electric power in a pipe for water supply and sewerage buried in the ground. Alternatively, in a cable for suspending and laying a sheath tube for accommodating the communication and power cables, a suspension tube for the sheath tube is inserted into a through hole formed in the tube wall at one end from the outside of the tube to the inside of the tube. A shaft having a hook for suspending the cable or the sheath tube, and a through hole formed integrally with the shaft in the tube wall, inserted through the inside of the tube from the outside of the tube, and An inner plate that rotates integrally with the shaft and abuts against the inner wall surface of the tube wall, and has a shape corresponding to an opening of a through hole formed in the tube wall, and is formed on the tube wall integrally with the shaft. Is inserted from the outside of the tube into the through hole, and is inserted into the position of the inner wall surface of the tube wall of the through hole. And an outer plate which is inserted into the shaft and abuts against the outer wall surface of the tube wall, and which engages with the shaft from outside the outer plate and connects the shaft, the inner plate and the outer plate to the tube wall. An engaging member for fixing the outer wall of the outer wall with the opening of the through hole formed in the pipe wall from outside the pipe in a space formed by the wall surface of the through hole formed in the pipe wall and the intermediate plate. The hook is fixed to the tube wall with a filler filled through a gap between the hooks.

According to the above-mentioned structure, even when a large-diameter pipe or a small-diameter pipe is not reachable by an operator, a hook can be easily attached from the outside of the pipe, and a cable having a simple structure and a reduced component cost can be provided. A suspension tube for a sheath tube can be provided.

That is, a shaft having a hook at one end from the outside of the tube, an intermediate plate and an inner plate are integrally inserted into a through hole formed in the tube wall, and the inner plate is rotated around the shaft to rotate the tube. Make contact with the inner wall of the wall. At this time, an intermediate plate having a shape corresponding to the opening of the through hole formed in the tube wall is fitted into the position of the inner wall surface of the through hole.

Then, an outer plate is inserted into the shaft to abut against the outer wall surface of the tube wall, and an engaging member is engaged with the shaft from outside the outer plate to connect the shaft, the inner plate and the outer plate. To the tube wall,
Filling the space formed by the wall surface of the through hole formed in the pipe wall and the middle plate through the gap between the opening of the through hole formed in the tube wall and the outer plate from the outside of the pipe. Thus, the hook can be fixed to the tube wall.

It is preferable that the inner plate and the middle plate are integrally formed because the number of parts and the number of assembling steps can be reduced.

When the shaft is formed by a bolt and the engaging member is formed by a nut which can be screwed to the bolt, the shaft, the inner plate and the outer plate are easily fixed to the tube wall by bolt connection. You can do it.

When the hook has a ring-shaped suspension, the cable and the sheath tube can be reliably and easily suspended on the ring-shaped suspension.

When the hook and the shaft are formed of I-bolts having a ring-shaped suspension, a commercially available hook and shaft having a simple structure can be used.
Parts cost can be reduced.

When the ring-shaped suspension portion of the hook is configured to be openable and closable, the suspension portion can be opened and the cable or the sheath tube can be easily suspended on the hook. It can be closed to securely support the cable or sheath tube on the hook.

The hook may have a flat or rod-shaped suspension, and if the flat suspension is configured to be housed near the inner wall surface of the pipe, no cable or sheath tube is suspended. Sometimes, the flat-shaped suspension portion is stored at a position near the inner wall surface of the pipe so that the flow of rainwater or the like flowing through the pipe is not hindered. The cable and the sheath can be suspended from the suspension by projecting the suspension from the position near the inner wall surface of the tube toward the inside of the tube.

[0018]

BRIEF DESCRIPTION OF THE DRAWINGS FIG.
One embodiment of a sheath tube suspension tube will be specifically described. FIG.
(A), (b) is a diagram showing the configuration of a first embodiment of a cable and a sheath tube suspension tube according to the present invention, and FIGS.
FIG. 3 is a diagram showing a configuration of a main part of the first embodiment, FIG. 3 is a diagram showing a configuration of a cable and a sheath tube according to a second embodiment of the present invention, and FIGS. A cable according to the invention,
FIG. 5 is a view showing a configuration of a third embodiment of a suspension tube for a sheath tube, FIG.
(A), (b) and FIGS. 6 (a), (b) are diagrams showing a configuration of a fourth embodiment of a cable and a sheath tube suspension tube according to the present invention.

First, the configuration of a first embodiment of a cable and a sheath tube suspension tube according to the present invention will be described with reference to FIGS. 1 (a) and 1 (b), reference numeral 1 denotes a fume pipe, a hard vinyl chloride pipe, an FRP (fiber reinforced pipe),
It is a cable composed of steel pipes and the like, buried in the ground and constituting a pipeline for water supply and sewage, etc.It is a suspension pipe of a sheath pipe, and in each of the figures shown below, an example of a round pipe is shown. Alternatively, the present invention can be applied to a cable formed of a tube having an elliptical cross section, an oval tube, or a square tube, or a suspension tube of a sheath tube.

In the pipe 1, an optical fiber cable for communication, a cable for electric power, or a sheath tube for accommodating the cable for communication and electric power can be suspended and laid by the hook 2.

At one end of a hook 2 for suspending a cable or a sheath tube (not shown), a shaft 3 having a dimension longer than the thickness of the tube wall 1a of the tube 1 is provided as shown in the figure. A through hole 1d having a predetermined shape through which the hook 2 can be inserted from outside to inside of the tube 1 is formed in the tube wall 1a.

On the hook 2 side of the shaft 3, a through hole 1 d formed in the tube wall 1 a integrally with the shaft 3 is inserted into the inside of the tube 1 from the outside of the tube 1. An inner plate 4 that can rotate integrally with the inner wall surface 1b of the tube wall 1a and abut on the inner wall surface 1b is fixed by welding or the like.

The inner plate 4 and the shaft 3 may be fixed by bolting or the like in addition to being fixed by welding. Further, the inner plate 4 and the shaft 3 may be fixed to the end of the shaft 3 or the hook 2 (not shown). The engaging portion and an engaging portion (not shown) provided on the inner plate 4 may be configured to be engaged with each other and locked. In this case, the shaft 3 is inserted into a hole formed at a substantially central portion of the inner plate 4, and the engaging portions are engaged with each other to fix the inner plate 4 to the shaft 3.

Further, it has a shape corresponding to the opening of the through hole 1d formed in the tube wall 1a, and is rotatably fitted to the shaft 3 to be fitted into the through hole 1d. Is provided at the position of the inner wall surface 1b.

The middle plate 5 may be fixed to the shaft 3 by welding, bolting or other fixing means, or the middle plate 5 and the inner plate 4 may be integrally formed as one part. May be done. In this case, the number of parts can be reduced, so that the parts cost and the number of assembling steps can be reduced, which is preferable.

An outer plate 6 is provided which is inserted into the shaft 3 from outside the middle plate 5 and abuts against the outer wall surface 1c of the tube wall 1a. The shaft 3, the inner plate 4, and the outer plate 6 are engaged with each other to fix the shaft 3 to the tube wall 1a.

As shown in FIG. 2C, a flat surface 1e corresponding to the outer shape of the outer plate 6 is formed at a position corresponding to the outer plate 6 on the outer wall surface 1c of the tube 1. , Outer plate 6
Can be stably fixed to the flat surface 1 e formed on the outer wall surface 1 c of the tube 1.

The outer peripheral surface of the portion of the shaft 3 on the hook 2 side is formed in a flat cylindrical shape, and a chamfered portion 3a is formed in the portion of the shaft 3 opposite to the hook 2 in the longitudinal direction of the outer peripheral surface. Have been. The chamfered portion 3a has a function of defining the direction of the hook 2 attached to the inside of the tube 1. In the present embodiment, the direction of drawing in the cable or the sheath tube suspended on the hook 2 (see FIG. (2) Two chamfered portions 3a each having a surface orthogonal to (left and right directions) are formed on the outer peripheral surface of the shaft 3 at positions facing each other.

According to the above configuration, by disposing the chamfered portion 3a of the shaft 3 in a direction perpendicular to the longitudinal direction of the tube 1 when viewed from the outside of the tube 1, the hook 2 cannot be seen inside the tube 1. Therefore, the direction of the hook 2 can be surely arranged at the posture position shown in FIGS. 1B and 2B, and further, by forming the chamfered portion 3a, The rotation of the shaft 3 when rotating the inner plate 4 can be easily performed by easily gripping the inner plate 4.

The chamfered portion 3a may be formed at two locations on the outer peripheral surface of the shaft 3 at right angles to each other, or may be formed at one location on the outer peripheral surface of the shaft 3. Further, as another configuration for defining the direction of the hook 2 attached to the inside of the pipe 1, a mark may be provided on an upper surface or an outer peripheral surface of the shaft 3.

In this embodiment, the shaft 3 is connected to the hook 2 of the shaft 3.
The engaging member 7 is formed by a nut which is screwed and fastened to the bolt.

The through hole 1d formed in the tube wall 1a of the tube 1 has an opening formed by an oval hole as shown in FIG. 2 (c). It is formed in substantially the same shape as a circle, and can fit into the through hole 1d. The middle plate 5 is configured to be rotatable with respect to the shaft 3 by inserting a hole formed at a substantially central portion thereof into the shaft 3.

As shown in FIG. 2, the inner plate 4 is formed in a rectangular shape through which the oblong through hole 1d can be inserted, and the length L1 of the long side thereof is set to the short side direction of the oval through hole 1d. Is formed with a dimension larger than the width W1. The inner plate 4 may be a rectangular flat plate, or the inner wall surface 1 of the pipe 1 may extend in the longitudinal direction of the inner plate 4.
A curved plate having a curvature corresponding to the curvature of b may be used.

The outer plate 6 is also formed in a rectangular shape, the length L2 of the long side thereof is larger than the width W1 of the through hole 1d in the short direction of the oval, and the short side of the outer plate 6 is The length L3 is formed to be smaller than the width W2 of the through hole 1d in the longitudinal direction of the oval. In this embodiment, since the flat surface 1e is formed on the outer wall surface 1c of the tube 1, the outer plate 6 is formed of a rectangular flat plate. However, when the flat surface 1e is not formed on the outer wall surface 1c of the tube 1, May be constituted by a curved plate having a curvature corresponding to the curvature of the outer wall surface 1c of the tube 1 in the longitudinal direction of the outer plate 6.

The direction of the hook 2 fixed to the shaft 3 and the inner plate 4 is perpendicular to the drawing direction of the cable or sheath tube suspended on the hook 2 (the left-right direction in FIG. 2A). Are arranged in the longitudinal direction.

In the above configuration, when the hook 2 is attached to the tube wall 1a of the tube 1, as shown in FIG.
The hook 3 and the inner plate 4 are integrally fixed to the ends. The shaft 3 is formed on the tube wall 1a in a state where the middle plate 5 is inserted through a hole formed at a substantially central portion of the middle plate 5. The hook 2, the inner plate 4, and the middle plate 5 are inserted into the through hole 1d from the outside of the pipe 1 integrally with the shaft 3 in a direction in which the longitudinal direction of the through hole 1d matches the longitudinal direction of the inner plate 4 and the middle plate 5. I do.

At this time, the cable of the hook 2, the insertion opening of the sheath tube, and the chamfered portion 3 a of the shaft 3 are oriented in a direction orthogonal to the longitudinal direction of the tube 1.

Then, the shaft 3 is rotated by 90 degrees at a position where the inner plate 4 is inserted into the inside of the tube 1 rather than the inner wall surface 1b of the tube wall 1a, and the middle plate 5 is restricted by the wall surface of the through hole 1d. The intermediate plate 5 rotatable with respect to the shaft 3 is abutted and locked on the wall surface of the through hole 1d to restrict rotation, and only the inner plate 4 and the hook 2 fixed to the shaft 3 are fixed to the shaft. 9 with 3
Rotate 0 degrees.

At this time, the cable of the hook 2, the insertion opening of the sheath tube, and the chamfered portion 3 a of the shaft 3 are oriented in the longitudinal direction of the tube 1. Thereby, the direction of the hook 2 which cannot be seen inside the tube 1 can be confirmed by visually observing the direction of the chamfered portion 3 a formed on the shaft 3.

By rotating the inner plate 4 by 90 degrees together with the shaft 3, the inner plate 4 can be brought into contact with the inner wall surface 1b around the through hole 1d and locked as shown in FIG. In a state where the inner plate 4 is in contact with the inner wall surface 1b, the outer plate 6 is inserted into the shaft 3 through a hole formed at a substantially central portion of the outer plate 6, and FIG.
As shown in (c), a through hole 1d formed in the tube wall 1a
After being disposed in a direction where the longitudinal direction of the outer plate 6 intersects the longitudinal direction of the outer plate 6 and abutting against the outer wall surface 1c around the through hole 1d, the engaging member 7 composed of a nut is screwed into the bolt portion of the shaft 3. By tightening, the shaft 3, the inner plate 4, and the outer plate 6 are integrally fixed to the tube wall 1a.

The total length of the screw thread of the bolt portion formed on the shaft 3 is determined by calculating the thickness of the inner plate 4 and the outer plate 6 and the tube wall 1a from the total length of the shaft 3.
Is formed to have a length larger than the size obtained by subtracting the thickness of the second member.

With the above construction, the lower surface of the through hole 1d is closed by the middle plate 5 mounted and supported on the inner plate 4, and the upper surface of the through hole 1d is in the longitudinal direction of the through hole 1d and the outer plate 6 A gap 8 is formed between the opening of the through hole 1d and the outer plate 6 by being disposed so as to intersect the longitudinal direction.

Then, the space formed by the wall surface of the through hole 1d and the middle plate 5 is filled with the filler 9 from the outside of the tube 1 via the gap 8. When the pipe 1 is a fume pipe, the filler 9 is filled with mortar or the like in such an amount as to substantially fill the through hole 1d.

When the pipe 1 is a resin-based pipe such as a hard vinyl chloride pipe, a filler 9 such as an epoxy resin is filled. The filler 9 such as an epoxy resin is applicable even when the pipe 1 is a fume pipe, FRP (fiber reinforced pipe), or steel pipe.

In this embodiment, the hook 2 and the shaft 3 are formed by I-bolts having a ring-shaped suspension. A flange 2a is provided at a position corresponding to the end of the shaft 3 of the hook 2 made of an I-bolt, and the inner plate 4 can be stably supported and fixed by the flange 2a.

In the above configuration, when a cable for communication and power or a sheath tube for accommodating the cable for communication and power is suspended and laid in the pipe 1, the pipe 1 must be formed in advance in a factory or the like. After the through-hole 1d and the flat surface 1e are formed in the pipe 1 and the hooks 2 are attached thereto as described above, the pipes 1 are connected and laid so that the positions of the hooks 2 are substantially continuous. A cable for communication and power or a sheath tube containing the cable for communication and power is inserted and suspended and laid.

The hook 2 can be attached from the outside of the pipe 1 even when the pipe 1 is a small-diameter pipe and a worker cannot enter the pipe 1 and even if it cannot be reached by humans. The cable or the sheath tube can be easily inserted into and suspended from the hook 2 by a robot or the like traveling in the tube 1.

Further, the cable can be easily inserted into the sheath tube by air or the like while the sheath tube is suspended on the hook 2.

The through hole 1 formed in the tube wall 1a of the tube 1
Although the shape of the opening portion d and the shapes of the inner plate 4, the middle plate 5, and the outer plate 6 are configured to be oval or rectangular, other configurations such as elliptical or triangular may be used. However, the present invention is not limited to this embodiment.

For example, radially around the axis 3 in the radial direction
The opening of each through-hole 1d, the inner plate 4, and the middle plate 5 are formed in a predetermined shape arranged in one direction or another direction, and the inner plate 4 and the middle plate 5 are inserted into the through-hole 1d from outside the pipe 1. After that, the shaft 3 is rotated by a predetermined angle to move the inner plate 4 to the inner wall surface 1b of the tube wall 1a.
And the outer plate 6 is brought into contact with the outer wall surface 1c of the tube wall 1a so that a gap is formed between the outer plate 6 and the opening of the through hole 1d. Tube wall 1a, inner plate 4,
What is necessary is just to fix the shaft 3 and the outer plate 6 integrally and fill the filler 9 from the gap.

When the inner plate 4 and the middle plate 5 are integrally formed, the shaft 3, the inner plate 4 and the middle plate 5 can be inserted obliquely through the through hole 1d from outside the pipe 1. The shaft 3 is rotated while the inner plate 4 and the middle plate 5 pass through the inner wall surface 1b of the tube wall 1a, and the inner plate 4 is brought into contact with and locked to the inner wall surface 1b of the tube wall 1a. It fits into the position of the inner wall surface 1b of the tube wall 1a of the through hole 1d.

According to the above configuration, even when a large-diameter pipe or a small-diameter pipe cannot be reached by an operator, the hook 2 can be easily attached from the outside of the pipe 1, the structure is simple, and the cost of parts can be reduced. Cable and sheath tube suspension tubes can be provided.

When the inner plate 4 and the middle plate 5 are integrally formed, the number of parts can be reduced, so that the number of working steps and the cost of parts can be reduced.

When the shaft 3 is a bolt and the engaging member 7 is a nut which can be screwed to the bolt, the shaft 3, the inner plate 4 and the outer plate 6 are connected to the tube wall 1a by bolt connection. And can be easily fixed.

When the hook 2 has a ring-shaped suspension, the cable and the sheath tube can be reliably and easily suspended on the ring-shaped suspension.

When the hook 2 and the shaft 3 are integrally formed by an I-bolt having a ring-shaped suspension portion, the hook 2 and the shaft 3 have a simple structure, and a commercially available one can be used. Parts cost can be reduced.

Next, the cable according to the present invention will be described with reference to FIG.
The configuration of the second embodiment of the suspension tube of the sheath tube will be described. The same components as those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted.

In the first embodiment, the hook 2 is constituted by a ring-shaped closed suspension portion. However, in the present embodiment, the work for suspending the communication and power cables or the sheath tube for accommodating the communication and power cables is performed. In order to facilitate the above, a part of the ring-shaped suspension portion of the hook 2 is configured to be openable and closable.

In FIG. 3, a part of the ring-shaped suspension portion of the hook 2 is opened, and a cover member 2c rotatable about a shaft 2b is always attached in the direction of arrow a in FIG. The lid member 2c is held by the end 2d of the hook 2 and is held in the state shown in FIG.

When suspending the communication / power cable or the sheath tube for accommodating the communication / power cable on the hook 2, the lid member 2 c is attached through the opening of the ring-shaped suspension portion of the hook 2. Pushing around the shaft 2b in the direction opposite to the arrow a in FIG. 3 to suspend the cable or sheath tube on the hook 2, the lid member 2c rotates about the shaft 2b in the direction of the arrow a in FIG. The lid member 2c is locked to the end 2d of the hook 2 and is held in the state shown in FIG.

According to the above configuration, the ring-shaped suspension portion of the hook 2 is configured to be openable and closable, so that the suspension portion can be opened and a cable or a sheath tube can be easily suspended on the hook 2. In the suspension work of the embodiment, it is necessary to insert a cable or a sheath tube into the hook 2, but in the present embodiment, the suspension can be performed only by fitting the cable or the sheath tube through the opening of the hook 2, so that the workability is improved. After the suspension, the suspension portion of the hook 2 can be closed to reliably support the cable and the sheath tube on the hook 2.

In the above embodiment, the cover 2c is connected to the shaft 2b.
The hook 2 which turns into a ring-shaped suspension part by opening and closing is opened and closed. However, as another configuration, a part of the hook 2 slides along the hook 2 and expands and contracts, thereby forming a ring-shaped suspension. Can be configured to open and close the hook 2 serving as a suspension portion of the vehicle, and various other configurations of the opening and closing portion are conceivable. Other configurations are the same as those of the first embodiment, and similar effects can be obtained.

Next, the cable according to the present invention will be described with reference to FIG.
The configuration of the third embodiment of the suspension tube of the sheath tube will be described. The same components as those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted.

In this embodiment, the hook 2 has a flat or rod-shaped suspension, and FIG. 4 shows an example of a flat suspension. The hook 2 shown in FIGS. 4 (a) and 4 (b) accommodates the inner plate 4 arranged in contact with the inner wall surface 1b of the tube wall 1a, and a communication / power cable or the communication / power cable. Flat plate 2e for suspending the sheath tube
Are fixed by welding or the like. In the present embodiment, the flat plate 2e is made of a rigid material.

In place of the flat plate 2e, a rod-shaped suspension portion such as a reinforcing bar may be fixed to the inner plate 4 by welding or the like. Other configurations are configured in the same manner as in the first embodiment, and similar effects can be obtained.

Next, referring to FIGS. 5 and 6, the construction of a fourth embodiment of the cable and sheath tube suspension tube according to the present invention will be described. The same components as those in the first and third embodiments are denoted by the same reference numerals, and description thereof is omitted.

In the present embodiment, the third type shown in FIG.
The flat plate 2e of the embodiment is constituted by a leaf spring 2f having elasticity, and the leaf spring 2f is configured to be housed in a position near the inner wall surface 1b of the tube 1. The leaf spring 2f and the inner plate 4 are connected and joined by a pin 2g.

When a cable for communication and power or a sheath tube for accommodating the cable for communication and power is suspended from the hook 2, as shown in FIGS.
6 (a) and 6 (b), the leaf spring 2f accommodated in the vicinity of the inner plate 4 is bent back against its elastic force.
The cable or the sheath tube can be inserted into a suspension portion provided between the cable spring and the leaf spring 2f and suspended.

When the cable or the sheath tube is not suspended, the leaf spring 2f, which protrudes from the inner wall surface 1b of the tube 1 to the inside of the tube 1 as shown in FIGS. 5 (a) and 5 (b), the leaf spring 2f is bent back, and the leaf spring 2f is stored in a position near the inner wall surface 1b of the pipe 1 to prevent rainwater or the like flowing through the pipe. Without hindering the flow, if necessary, as described above, when suspending the cable or the sheath tube, the leaf spring 2f is protruded from a position near the inner wall surface 1b of the tube 1 toward the inside of the tube 1 so that the cable or the sheath tube is protruded. Can be suspended on a leaf spring 2f serving as a suspension portion.

Other configurations are the same as those of the first and third embodiments, and similar effects can be obtained.

[0071]

Since the present invention has the above-described structure and operation, even when a small-diameter pipe cannot be reached by an operator, the hook can be easily attached from the outside of the pipe, and the structure is simple and the parts are simple. It is possible to provide a cable for reducing costs and a tube for suspending a sheath tube.

[Brief description of the drawings]

FIGS. 1A and 1B are diagrams showing a configuration of a first embodiment of a cable and a sheath tube suspension tube according to the present invention.

FIGS. 2A to 2C are diagrams showing a configuration of a main part of the first embodiment.

FIG. 3 shows a second embodiment of a suspension tube for a cable and a sheath tube according to the present invention.
It is a figure showing composition of an embodiment.

FIGS. 4A and 4B are diagrams showing a configuration of a third embodiment of a cable and a sheath tube suspension tube according to the present invention.

FIGS. 5A and 5B are diagrams showing a configuration of a fourth embodiment of a cable and a sheath tube suspension tube according to the present invention.

FIGS. 6 (a) and (b) are diagrams showing a configuration of a fourth embodiment of a cable and sheath tube suspension tube according to the present invention.

FIG. 7 is a diagram illustrating a conventional example.

FIG. 8 is a diagram illustrating a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Pipe 1a ... Pipe wall 1b ... Inner wall surface 1c ... Outer wall surface 1d ... Through-hole 1e ... Flat surface 2 ... Hook 2a ... Flange part 2b ... Shaft 2c ... Lid member 2d ... End part 2e ... Flat plate 2f ... Leaf spring 2g ... Pin 3 ... Shaft 3a ... Chamfered part 4 ... Inner plate 5 ... Middle plate 6 ... Outer plate 7 ... Engaging member 8 ... Gap 9 ... Filling material

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor: Yu Murase 1-22-2, Nishi-Shinjuku, Shinjuku-ku, Tokyo Haneda Hume Kanko Co., Ltd. (72) Inventor: Akira Nobunaga 1-22-2, Nishishinjuku, Shinjuku-ku, Tokyo No. Haneda Hume Kan Co., Ltd. (72) Inventor Yoshiaki Ishii 5-33-11, Shimbashi, Minato-ku, Tokyo Japan Hume Kanko Co., Ltd. (72) Inventor Masaaki Nishiwaki 5-33-11, Shimbashi, Minato-ku, Tokyo No. Nippon Hummer Tube Co., Ltd.

Claims (8)

[Claims] 1. A cable for suspending and laying a cable for communication and power or a sheath for accommodating the cable for communication and power in a pipeline for water supply and sewerage buried in the ground. A pipe having a hook which can be inserted into a through hole formed in a pipe wall at one end from the outside of the pipe to the inside of the pipe, and which has a hook for suspending the cable or the sheath pipe; An inner plate that is inserted through the through hole formed in the wall from the outside of the tube to the inside of the tube, rotates integrally with the shaft around the shaft, and abuts on the inner wall surface of the tube wall; And has a shape corresponding to the opening of the through hole, and is inserted into the through hole formed in the tube wall integrally with the shaft from the outside of the tube, and fitted into the position of the inner wall surface of the tube wall of the through hole. A middle plate, an outer plate fitted into the shaft and abutting against an outer wall surface of the tube wall, An engaging member that engages with a shaft to fix the shaft, the inner plate and the outer plate to the tube wall; and a space formed by the wall surface of the through hole formed in the tube wall and the middle plate. And a filler filled from the outside of the pipe through an opening between a through hole formed in the pipe wall and the outer plate, and the hook is fixed to the pipe wall. Cable and sheath tube for suspension. 2. The suspension tube for a cable and a sheath tube according to claim 1, wherein the inner plate and the middle plate are integrally formed. 3. The cable or sheath tube suspension according to claim 1, wherein the shaft is a bolt, and the engaging member is formed of a nut that can be screwed to the bolt. tube. 4. The suspension tube for a cable or a sheath tube according to claim 1, wherein the hook has a ring-shaped suspension portion. 5. The device according to claim 4, wherein the hook and the shaft are I bolts having a ring-shaped suspension.
4. The suspension tube of the cable and the sheath tube according to 1. 6. The suspension tube for a cable or a sheath tube according to claim 4, wherein the ring-shaped suspension portion of the hook is configured to be openable and closable. 7. The hook according to claim 1, wherein the hook has a flat or rod-shaped suspension portion.
The cable or sheath tube according to the above item. 8. The cable and sheath tube suspension tube according to claim 7, wherein the flat suspension portion is configured to be housed in a position near an inner wall surface of the tube.