JP7488174B2 - Containment vessel - Google Patents

Description

The present invention relates to a container for storing cables and electrical equipment.

Conventionally, containers are known that house sensors for detecting conditions inside the container or electrical devices such as communication devices together with cables (see, for example, Patent Document 1).

The container that houses the electrical equipment together with the cable has the electrical equipment attached to the back of the manhole cover that is connected to the cable storage space.

JP 2006-030129 A

In conventional storage containers, equipment connection cables such as power lines and signal lines inside the container are connected to electrical equipment attached to the back side of the manhole cover. For this reason, when opening the cover during maintenance and inspection work inside the container, handling the equipment connection cables becomes cumbersome, and there is a risk of reduced work efficiency during maintenance and inspection work that involves opening and closing multiple manhole covers. In addition, if the electrical equipment to be stored inside the container is placed adjacent to the cables on the bottom side inside the container without being attached to the back side of the manhole cover, there is a risk that cable routing work will be hindered and the storage space for the cables will be reduced.

The object of the present invention is to provide a storage container that improves the efficiency of maintenance and inspection work and ensures storage space for cables.

The storage container according to the present invention has a storage space in which cables and electrical equipment are stored, and an opening provided at the top of the storage space is closed by a lid, and the electrical equipment is stored in an equipment storage box, and the equipment storage box is engaged with a locking portion arranged on the upper side of a side wall located to the side of the storage space, and the locking portion is arranged in a number of different portions on the upper side of the side wall.

The storage container according to the present invention further includes a cable support member that supports an equipment connection cable that is connected to the electrical equipment, and the cable support member is engaged with one of the locking parts disposed in the plurality of portions other than the locking part to which the equipment storage box is engaged.

The storage container according to the present invention further includes a container body that surrounds the bottom and side surfaces of the storage space, and a spacer that is provided between the upper end of the container body and the lid and adjusts the height position of the lid relative to the container body, and the locking portion is provided on the spacer.

In addition, in the storage container according to the present invention, the equipment storage box is engaged with the engaging portion via a bracket.

In addition, the storage container according to the present invention is equipped with a vibration-damping structure that attenuates vibrations transmitted to the equipment storage box.

According to the present invention, the electrical equipment can be housed in the storage space without being attached to the lid, which makes it easier to open and close the lid and improves the efficiency of maintenance and inspection work. In addition, the electrical equipment can be housed in the upper part of the storage space, so cable routing work is not hindered and the storage space for cables in the storage space is not limited by the electrical equipment.

1 is a schematic diagram of a storage container showing a first embodiment of the present invention. FIG. 2 is a cross-sectional view of a storage container according to the first embodiment. FIG. 2 is a perspective view of a spacer according to the first embodiment. FIG. 4 is a perspective view illustrating a state in which a cable support member is attached to a spacer according to the first embodiment. FIG. 11 is a cross-sectional view illustrating an installation state of a storage box according to a second embodiment of the present invention. 11 is a cross-sectional view illustrating a vibration damping structure for a storage box according to a third embodiment of the present invention. FIG.

First Embodiment
1 to 4 show a first embodiment of the present invention, in which Fig. 1 is a schematic diagram of a container, Fig. 2 is a cross-sectional view of the container, Fig. 3 is a perspective view of a spacer, and Fig. 4 is a perspective view for explaining the attachment state of a cable support member to the spacer.

As shown in FIG. 1, the storage container 1 of this embodiment is for storing a cable 2 and an electrical device 3. In this embodiment, the cable 2 stored in the storage container 1 is a power line 2a, such as a transmission line or distribution line, that transmits power supplied from a power plant to each demand facility, and a communication line 2b for transmitting signals transmitted and received between multiple wireless base station devices and a switching center. In addition, the electrical device 3 stored in the storage container 1 in this embodiment may be, for example, a sensor for detecting the state inside and outside the storage container 1, a wireless base station device, a power supply unit for road lighting, a terminal block, etc.

In this embodiment, the storage space 1a that houses the cable 2 and the electrical equipment 3 extends along the extension direction of the road on which the vehicle travels, and is formed underground below the road surface G. The present invention is not limited to storage space 1a extending along the extension direction of the road, and is not limited to storage space 1a formed underground. Storage space 1a may be formed on land where no road is formed, for example, along a railroad track or a site boundary, and storage space 1a may be formed above the ground G.

As shown in FIG. 2, the storage container 1 has an opening 10 on the top surface, and is equipped with a number of container bodies 11 that divide the lower and lateral sides of the storage space 1a, a number of lid bodies 12 for closing the openings 10, and a number of spacers 13 for adjusting the height position of the lid bodies 12 relative to the container body 11 to make the top surface of the lid bodies 12 approximately flush with the road surface G.

The container body 11 has a bottom surface 11a and a pair of widthwise side portions 11b that extend upward from both sides of the bottom surface 11a in the width direction, and is a member that extends linearly in the front-rear direction. In other words, the container body 11 is a so-called U-shaped gutter with a U-shaped cross section. The multiple container bodies 11 are lined up without gaps with the front-rear direction facing the extension direction of the road, forming a storage space 1a inside. The multiple container bodies 11 are each buried in the ground so that the height of the opening 10 is located near the ground G. In addition, a pair of L-shaped angles 11c are fixed to the upper end surfaces of the pair of side portions 11b of the container body 11, which extend horizontally along the upper end surfaces of the side portions 11b and extend upward from the outer ends in the width direction. The L-shaped angles 11c are made of a metal member such as stainless steel.

The lid body 12 is a resin plate-shaped member whose width and front-rear dimensions are the same as those of the container body 11. The lid bodies 12 are arranged in the road extension direction without gaps by being spanned across the upper ends of the container bodies 11, which are arranged in the road extension direction, via spacers 13. The lid bodies 12 are fixed to the spacers 13 by fastening members such as special screws that can be attached and detached using only special tools.

The spacer 13 is a rectangular cylindrical member made of a metal such as stainless steel. The spacer 13 is arranged along the upper end of each of the pair of side portions 11b of the container body 11 via the L-shaped angle 11c. The spacer 13 is fixed to the container body 11 by fastening it to the L-shaped angle 11c with a fastening member such as a bolt (not shown). In addition, the spacer 13 has a plurality of locking portions 13a arranged on the inner side in the width direction when attached to the container body 11, which can lock an equipment storage box (described later) or a cable support member (described later).

The locking portions 13a are a pair of screw holes arranged in the longitudinal direction of the spacer 13. As shown in FIG. 3, the locking portions 13a are arranged at each of one end side, the other end side, and the center side of the spacer 13 in the longitudinal direction, and at different portions of one end side, the other end side, and the center side in the lateral direction. In other words, the spacer 13 can lock an equipment storage box or a cable support member at either one end side, the other end side, or the center side in the longitudinal direction, and at either one end side, the other end side, or the center side in the lateral direction.

The electrical equipment 3 contained in the storage container 1 is stored in an equipment storage box 20. The equipment storage box 20 containing the electrical equipment 3 is locked to a locking portion 13a provided on a side wall (spacer 13) located on the side of the storage space 1a.

As shown in FIG. 2, the equipment storage box 20 has a main body 21 with an opening on the top and a lid 22 that closes the opening. The equipment storage box 20 may have a waterproof structure to prevent water from entering the internal space when the opening of the main body 21 is closed by the lid 22. The equipment storage box 20 is engaged with the engaging portion 13a via the bracket 23.

The underside of the main body 21 is provided with an attachment piece 21a that is formed to protrude laterally from the outer surface and has a screw hole formed therein. The main body 21 is fixed to one end of the bracket 23 by fixing the attachment piece 21a to the bracket 23 with a fastening member 21b such as a bolt. In addition, a cable through hole 21c is provided on the side of the main body 21 for passing an equipment connection cable 3a for supplying power or transmitting signals to the electric equipment 3 stored in the equipment storage box 20. The equipment connection cable 3a passes through the cable through hole 21c and is connected to the electric equipment 3 stored in the equipment storage box 20.

The lid portion 22 is fixed to the main body portion 21 by fastening members such as bolts (not shown).

As shown in FIG. 2, the bracket 23 is a metal plate-like member formed into an L-shape by bending one end at a substantially right angle to the other end. The bracket 23 has one end fixed to the main body 21 of the equipment storage box 20 by a fastening member 21b, and the other end fixed to the locking portion 13a of the spacer 13 by a fastening member 23a such as a bolt.

Here, the equipment storage box 20, which is engaged with the engaging portion 13a of the spacer 13 via the bracket 23, is in a position in which the opening located on the upper surface of the main body portion 21 is closed by the lid portion 22. The mounting height of the equipment storage box 20 engaged with the engaging portion 13a is adjusted so that a predetermined gap is formed between the upper surface of the lid portion 22 and the lower surface of the lid body 12 in a state in which the opening 10 of the container body 11 is closed. The predetermined gap is a gap in which the lid body 12 and the lid portion 22 do not come into contact with each other when the weight of a person or the like acts on the lid body 12 in a state in which the opening 10 of the container body 11 is closed, due to bending of the lid body 12.

As shown in FIG. 4, the device connection cable 3a is supported by a cable support member 30 that is engaged with the engaging portion 13a, and extends in parallel to the direction in which the other cables 2 extend at the upper side of the storage space 1a.

The cable support member 30 is a metal plate-like member formed into a U-shape by bending one end side and the other end side at approximately right angles in the same direction relative to the center side. The cable support member 30 is oriented with one end side and the other end side facing upward relative to the center side, and one end side is fixed to the locking portion 13a by a fastening member 30a such as a bolt. The cable support member 30 supports the device connection cable 3a on the upper surface of the center side and between the one end side and the other end side.

When storing the electrical equipment 3 in the storage space 1a in the storage container 1 configured as above, first, the electrical equipment 3 is stored in the equipment storage box 20, and then the equipment storage box 20 storing the electrical equipment 3 is engaged with the engaging portion 13a of the spacer 13 via the bracket 23. As a result, the equipment storage box 20 storing the electrical equipment 3 is attached to the upper side of the side wall located to the side of the storage space 1a.

In addition, the side of the spacer 13 has locking portions 13a at multiple different positions in the longitudinal and lateral directions, so that by selecting one of the multiple locking portions 13a to lock the equipment storage box 20 to, it is possible to adjust the mounting position of the equipment storage box 20 in the storage space 1a.

Furthermore, among the locking portions 13a arranged in multiple portions on the side portion of the spacer 13, a cable support member 30 is engaged with any of the locking portions 13a other than the locking portion 13a to which the equipment storage box 20 is engaged. As a result, the equipment connection cable 3a connected to the electrical equipment 3 is supported by the cable support member 30 engaged with the locking portion 13a, and is positioned on the upper side of the storage space 1a in the extension direction.

Thus, according to the storage container 1 of this embodiment, the storage container 1 has a storage space 1a in which the cable 2 and the electrical device 3 are stored, and an opening 10 provided at the top of the storage space 1a is closed by a lid 12, and the electrical device 3 is stored in an equipment storage box 20, and the equipment storage box 20 is engaged with a locking portion 13a arranged on the upper side of a side wall located to the side of the storage space 1a, and the locking portion 13a is arranged in multiple different parts on the wall surface on the upper side of the side wall located to the side of the storage space 1a.

As a result, the electrical equipment 3 can be accommodated in the storage space 1a without being attached to the lid 12, which makes it easier to open and close the lid 12 and improves the efficiency of maintenance and inspection work. In addition, the electrical equipment 3 can be accommodated in the upper part of the storage space 1a, so that the installation work of the cable 2 is not hindered, and the storage space of the cable 2 in the storage space 1a is not limited by the electrical equipment 3. Furthermore, the equipment storage box 20 containing the electrical equipment 3 can be locked at any position by selecting from a plurality of locking parts 13a, so that the installation position can be determined according to the electrical equipment 3 to be installed or according to the size of the equipment storage box 20, and various electrical equipment 3 can be accommodated in the storage space 1a.

It is also preferable that the device further includes a cable support member 30 that supports the device connection cable 3a that is connected to the electrical device 3, and that the cable support member 30 is engaged with the engaging portions 13a other than the engaging portion 13a to which the device storage box 20 is engaged, among the engaging portions 13a arranged in multiple portions.

As a result, the device connection cable 3a connected to the electrical device 3 can be placed at the top of the storage space 1a and stored in the storage space 1a separately from the other cables 2, which can further improve the efficiency of maintenance and inspection work.

It is also preferable that the container further comprises a container body 11 that divides the lower and lateral sides of the storage space 1a, and a spacer 13 that is provided between the upper end of the container body 11 and the lid body and adjusts the height position of the lid body 12 relative to the container body 11, and that the locking portion 13a is provided on the spacer 13.

This allows the device storage box 20 to be securely positioned at the top of the storage space 1a, making it possible to secure a larger storage space for the cable 2.

It is also preferable that the equipment storage box 20 is engaged with the engaging portion 13a via the bracket 23.

As a result, by changing only the bracket 23, it is possible to lock equipment storage boxes 20 of different sizes to the locking portion 13a without changing the locking portion 13a, making it possible to use the same type of spacer 13 and reducing manufacturing costs.

Second Embodiment
FIG. 5 shows a second embodiment of the present invention and is a cross-sectional view illustrating an attachment state of an equipment storage box.

In this embodiment, the equipment storage box 20 is engaged with the engaging portion 13a via a bracket 24 made of a flat metal plate member.

The bracket 24 is fixed at one end to the main body 21 of the equipment storage box 20 by a fastening member 24a such as a bolt, and at the other end to the locking portion 13a of the spacer 13 by a fastening member such as a bolt (not shown).

Here, the equipment storage box 20 that is engaged with the engaging portion 13a of the spacer 13 via the bracket 24 is in a position where the opening of the main body portion 21 faces to the side, and the opening facing to the side is closed by the lid portion 22. The mounting height of the equipment storage box 20 that is engaged with the engaging portion 13a is adjusted so that a predetermined gap is formed between the surface facing the top of the equipment storage box 20 and the underside of the lid body 12 when the opening 10 of the container body 11 is closed.

As described above, according to the storage container 1 of this embodiment, as in the first embodiment, the electrical equipment 3 can be stored in the storage space 1a without being attached to the lid 12, which makes it easier to open and close the lid 12, and improves the efficiency of maintenance and inspection work. In addition, since the electrical equipment 3 can be stored in the upper part of the storage space 1a, the installation work of the cable 2 is not hindered, and the storage space of the cable 2 in the storage space 1a is not limited by the electrical equipment 3. Furthermore, since the equipment storage box 20 storing the electrical equipment 3 can be locked at any position by selecting from a plurality of locking parts 13a, it is possible to determine the installation position according to the electrical equipment 3 to be installed or the size of the equipment storage box 20, and it is possible to store various electrical equipment 3 in the storage space 1a.

Third Embodiment
FIG. 6 shows a third embodiment of the present invention, and is a cross-sectional view illustrating a vibration-damping structure of a storage box.

In this embodiment, the equipment storage box 20 is secured to the locking portion 13a via a bracket 25 that has a vibration-damping structure for attenuating vibrations transmitted to the equipment storage box 20 from a vehicle traveling on a road.

The bracket 25 is made of a metal plate-shaped member, and its upper end is fixed to the locking portion 13a of the spacer 13 by a fastening member 25a such as a bolt, and the equipment storage box 20 is fixed below the part fixed to the locking portion 13a by a fastening member such as a bolt.

The bracket 25 also has a vibration damping section 25c for damping vibrations transmitted to the bracket 25. The vibration damping section 25c is configured by extending the lower end side of the bracket 25 close to the bottom surface 11a of the container body 11 and bending it at a substantially right angle, and abutting the lower surface of the bent part against the bottom surface 11a of the container body 11 via an elastic member 25b made of an elastic body such as a rubber plate.

In the storage container 1 configured as described above, the equipment storage box 20 storing the electrical equipment 3 is attached to the upper wall surface of the storage space 1a via the bracket 25.

The lower end of the bracket 25 abuts against the bottom surface 11a of the container body 11 via the elastic member 25b, so that when vibrations caused by the vehicle's movement are transmitted to the bracket 25 via the container body 11 or the lid 12, the vibrations are damped by the elastic member 25b. This suppresses the transmission of vibrations to the equipment storage box 20 fixed to the bracket 25.

As described above, according to the storage container 1 of this embodiment, as in the first embodiment, the electrical equipment 3 can be stored in the storage space 1a without being attached to the lid 12, which makes it easier to open and close the lid 12, and improves the efficiency of maintenance and inspection work. In addition, since the electrical equipment 3 can be stored in the upper part of the storage space 1a, the installation work of the cable 2 is not hindered, and the storage space of the cable 2 in the storage space 1a is not limited by the electrical equipment 3. Furthermore, since the equipment storage box 20 storing the electrical equipment 3 can be locked at any position by selecting from a plurality of locking parts 13a, it is possible to determine the installation position according to the electrical equipment 3 to be installed or the size of the equipment storage box 20, and it is possible to store various electrical equipment 3 in the storage space 1a.

It is also preferable that the device further includes a vibration damping structure that attenuates vibrations transmitted to the device storage box 20.

This makes it possible to attenuate vibrations transmitted to the electrical equipment 3 stored in the equipment storage box 20, thereby making it possible to prevent malfunctions such as breakdowns of the electrical equipment 3.

In the third embodiment, the lower end of the bracket 25 is provided with a vibration damping portion 25c that abuts against the bottom surface 11a of the container body 11 via an elastic member 25b, but this is not limited to the above. As a damping structure for damping vibrations transmitted to the bracket to which the equipment storage box 20 is attached, for example, an elastic member may be interposed between the locking portion and the bracket. Also, an elastic member may be interposed between the bracket and the equipment storage box to dampen vibrations transmitted to the equipment storage box.

In addition, in the first to third embodiments, the spacer 13 for adjusting the height position of the lid 12 relative to the container body 11 is provided with a locking portion 13a for locking the equipment storage box 20, but this is not limited to the above. The locking portion for locking the equipment storage box may be provided on the upper side of the side wall located to the side of the storage space 1a, or may be provided on the inner surface of the side portion 11b of the container body 11.

In the first to third embodiments, a pair of screw holes are shown as the locking portion 13a, but this is not limited thereto. As long as it is possible to lock the equipment storage box, one or three or more screw holes may be used. In addition, as long as it is possible to lock the equipment storage box, the locking portion may be, for example, a hole without a female thread that can lock a hook-shaped portion provided on the equipment storage box, or a protrusion that can lock the equipment storage box.

In addition, the device storage box is shown to be engaged with the engaging portion 13a via brackets 23, 24, and 25, but this is not limited to this. If it is possible to engage the device storage box with the engaging portion, the device storage box may be engaged directly with the engaging portion.

REFERENCE SIGNS LIST 1 Storage container 1a Storage space 2 Cable 3 Electrical device 10 Opening 11 Container body 11a Bottom surface 11b Side surface 12 Lid 13 Spacer 13a Locking portion 20 Device storage box 21 Body 22 Lid 23 Bracket 24 Bracket 25 Bracket 30 Cable support member

Claims (5)

A container having a storage space in which cables and electrical equipment are stored, and an opening provided at an upper portion of the storage space is closed by a lid,
The electrical device is stored in an equipment storage box,
The equipment storage box is engaged with a locking portion provided on an upper side of a side wall located on a side of the storage space,
The container, wherein the locking portions are disposed at a plurality of different portions on the upper side of the side wall. a cable support member for supporting a device connection cable connected to the electrical device,
The container according to claim 1 , wherein the cable support member is engaged with one of the locking portions disposed in the plurality of portions other than the locking portion to which the equipment storage box is engaged. A container body that defines a lower side and a lateral side of the storage space;
a spacer provided between an upper end of the container body and the lid body to adjust a height position of the lid body relative to the container body,
The container according to claim 1 , wherein the locking portion is provided on the spacer. The container according to claim 1 , wherein the equipment storage box is engaged with the engaging portion via a bracket. The container according to claim 1 , further comprising a vibration damping structure that damps vibrations transmitted to the equipment storage box.

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