JP2022024344A - Collapse prevention structure of on-road apparatus - Google Patents

Abstract

To prevent an on-road apparatus from being collapsed.SOLUTION: A collapse prevention structure of on-road apparatus, preventing an on-road apparatus 3 installed on a hand hole 2 formed under the ground from being collapsed, includes reinforcement wires 41, 42 which are of slender linear shape, arranged in the on-road apparatus 3 and the hand hole 2 and has one end part fixed on the on-road apparatus 3 and the other end fixed on the hand hole 2. The reinforcement wires 41. 42 are arranged so that the on-road apparatus 3 is not collapsed by being stretched when the on-road apparatus 3 receives an impact.SELECTED DRAWING: Figure 1

Description

The present invention relates to a collapse prevention structure for road equipment that prevents / suppresses the collapse of road equipment.

In recent years, undergrounding of electric wires for arranging cables such as power lines and communication lines in the ground has been promoted, and road equipment (road transformers, etc.) is installed along with the undergrounding. This road equipment accommodates electrical equipment such as transformers, switches, and branching devices installed on utility poles in cabinets and storage boxes, and is installed on the sidewalk sidewalk. At this time, the road equipment is installed on the hand hole made of concrete or the like in the ground, and the cable laid in the hand hole is introduced into the road equipment from the bottom of the road equipment, and the electrical equipment and the electrical equipment are installed. Connected to.

By the way, since the road equipment is installed on the road side of the sidewalk, there is a possibility that the vehicle collides with the road equipment and the road equipment collapses or falls. In this case, not only the road equipment and cables are damaged, but also if the road equipment falls to the sidewalk side, there is a risk of damage and harmful effects to people and things around.

On the other hand, there is known a hand hole that can be easily repaired even if a vehicle collides with a road device and an impact is applied to the hand hole (see, for example, Patent Document 1). This hand hole is provided with a pedestal portion that protrudes from the road surface and supports road equipment, and this pedestal portion is composed of an upper pedestal portion composed of a plurality of parts and a frame-shaped lower pedestal portion. The lower pedestal portion and the upper pedestal portion are connected by a connecting member so that the impact applied to the upper pedestal portion is not transmitted to the lower pedestal portion.

Japanese Unexamined Patent Publication No. 2007-14048

However, in the technique described in Patent Document 1, when a vehicle collides with a road device and an impact is applied to the hand hole, the hand hole can be easily repaired, but the road device is prevented or suppressed from collapsing. It is not possible. Therefore, it is not possible to prevent or suppress the road equipment from falling to the sidewalk side and damaging or damaging surrounding people or things.

Therefore, an object of the present invention is to provide a collapse prevention structure for road equipment that can prevent the road equipment from collapsing or falling.

In order to solve the above problems, the invention of claim 1 is an elongated structure for preventing the collapse of road equipment installed on a hand hole formed in the ground, which prevents the road equipment from collapsing. A reinforcing wire is linearly arranged in the road device and in the hand hole, one end of which is fixed to the road device and the other end of which is fixed to the hand hole, and the reinforcing wire is provided on the road. It is characterized in that the road equipment is arranged so as not to be stretched and the road equipment to fall when the equipment is impacted.

The invention of claim 2 is characterized in that, in the collapse prevention structure of the road device according to claim 1, the reinforcing wire is arranged so that the road device does not fall in a predetermined direction.

The invention of claim 3 is the collapse prevention structure of the road device according to claim 1 or 2, wherein one end of the reinforcing wire is passed through a screw hole for a hanging bolt provided in the road device. It is characterized by being fixed to.

According to a fourth aspect of the present invention, in the collapse prevention structure for road equipment according to claims 1 to 3, the other end of the reinforcing wire is fixed to the handhole via an implant bolt provided in the handhole. It is characterized by the fact that it is.

According to the first aspect of the present invention, when a vehicle collides with a road device and the road device is impacted, a reinforcing wire having one end fixed to the road device and the other end fixed to a hand hole is stretched. Since the road equipment is supported by the hand hole via the reinforcing wire (tightened), it is possible to prevent or prevent the road equipment from collapsing or falling. In addition, since only elongated linear reinforcing wires are arranged, the configuration is simple, and it interferes with the arrangement and inspection work of electrical equipment in road equipment and cables in handholes. There are few things. In other words, it is possible to prevent the road equipment from collapsing by arranging the reinforcing wire at the desired / arbitrary position without disturbing the arrangement of electrical equipment and inspection work (without limitation). , High degree of freedom of arrangement. Moreover, since the reinforcing wires are arranged in the cabinet and the hand hole of the road equipment and are not exposed to the outside, not only the appearance is good, but also the reinforcing wires are not deteriorated by being exposed to wind and rain.

According to the second aspect of the present invention, since the reinforcing wire is arranged so that the road device does not fall in a predetermined direction, for example, so as not to fall on the sidewalk side, the road device falls and the surroundings are surrounded. It is possible to prevent and suppress damage and harmful effects to people and things.

According to the third aspect of the present invention, one end of the reinforcing wire is fixed to the road equipment via a screw hole for a hanging bolt provided in the road equipment. That is, since the reinforcing wire is fixed by utilizing the screw hole provided for the hanging bolt, it is not necessary to provide a screw hole or the like only for fixing the reinforcing wire in the road equipment. Further, the reinforcing wire can be fixed to the existing road equipment having a screw hole for the hanging bolt without any additional work. That is, the collapse prevention structure can be easily and quickly applied to the existing road equipment.

According to the invention of claim 4, since the other end of the reinforcing wire is fixed to the hand hole via the implant bolt provided in the hand hole, the reinforcing wire is firmly fixed to the hand hole. .. Therefore, the road equipment can be firmly supported by the hand hole via the reinforcing wire, and the road equipment can be further prevented or suppressed from collapsing or falling.

It is a schematic block diagram which shows the collapse prevention structure of the road device which concerns on embodiment of this invention, (a) shows the normal state, (b) shows the state which the road device is slightly tilted, (c). ) Indicates a state in which the road equipment is slightly tilted. It is a front view (a), a plan view (b), and a side view (c) which show the road device in the collapse prevention structure of FIG. It is a top view which shows the foundation base of the road equipment of FIG. It is sectional drawing (partial side view) which shows the road equipment and a hand hole in the collapse prevention structure of FIG. It is a figure which shows the fixing method of the one end part of the 1st reinforcement wire in the collapse prevention structure of FIG. It is a figure which shows the fixing method of the other end of the 1st and 2nd reinforcing wires in the collapse prevention structure of FIG. It is a figure which shows the fixing method of the one end part of the 2nd reinforcing wire in the collapse prevention structure of FIG.

Hereinafter, the present invention will be described based on the illustrated embodiment.

1 to 7 show an embodiment of the present invention, and FIG. 1 is an outline showing a collapse prevention structure (hereinafter, appropriately referred to as “collapse prevention structure”) 1 of the road device 3 according to the embodiment of the present invention. In the block diagram, (a) shows a normal state, (b) shows a state in which the road device 3 is slightly tilted, and (c) shows a state in which the road device 3 is slightly tilted. The collapse prevention structure 1 is a structure for preventing / suppressing the collapse of the road device 3 installed on the hand hole 2 formed in the ground, and the hand hole 2 and the road device 3 are reinforced wires 41. , 42 are connected.

Since the hand hole 2 and the road device 3 have the same basic configuration as the existing / existing ones, the details are omitted, but the configuration is roughly as follows.

The hand hole 2 is a hole / hole formed of concrete or the like in the ground, and is formed so as to extend vertically downward from the ground G and then substantially horizontally. Further, on the ground G side, a pedestal portion 21 for installing the road device 3 in a square frame shape and a manhole 22 for people to enter and exit are formed in a frame shape, and the manhole 22 is provided with a manhole cover 23. ing.

The road equipment 3 has a box-shaped cabinet / storage box 31 as shown in FIG. 2, in which electrical equipment such as a transformer, a switch, and a branching device is housed, and has a square frame shape on the bottom side as shown in FIG. The base 32 is arranged. Then, as shown in FIG. 4, the road equipment 3 is installed on the hand hole 2 so that the foundation base 32 overlaps the pedestal portion 21, and the cables such as power lines and communication lines laid in the hand hole 2 are installed. Is introduced into the cabinet 31 from the pedestal portion 21 and the foundation base 32, and is electrically connected to the electrical equipment.

Here, the foundation pedestal 32 and the pedestal portion 21, that is, the road device 3 and the hand hole 2 are connected by anchor bolts via anchor holes 32a formed on the four corners of the foundation pedestal 32 as shown in FIG. Has been done. Further, in this embodiment, as shown in FIGS. 1 and 4, the road device 3 is installed on the road side of the sidewalk, and the front side of the road device 3 faces the sidewalk side (manhole cover 23 side). do.

The reinforcing wires 41 and 42 are metal elongated linear wires, and their outer diameters and strengths are arranged as described later, so that even if a vehicle or the like collides with the road device 3, the road device It is set to support 3 so that the road device 3 does not collapse or fall. The reinforcing wires 41 and 42 are arranged in the cabinet 31 of the road equipment 3 and in the hand hole 2, one end thereof is fixed and connected to the cabinet 31, and the other end is fixed to the hand hole 2. Further, the reinforcing wires 41 and 42 are arranged so as to be taut when the road device 3 is impacted (tilted) so that the road device 3 does not fall toward the sidewalk (predetermined direction).

Specifically, as shown in FIG. 4, the first reinforcing wire 41 extends from the upper part of the road device 3 to the upper part of the hand hole 2, and is arranged so as to extend straight along the back side of the road device 3. There is. Further, one end portion and the upper end portion thereof are fixed to the cabinet 31 via a screw hole 31a for a hanging bolt provided in the top plate 311 of the cabinet 31. That is, as shown in FIG. 5, screw holes 31a for attaching hanging bolts for lifting the road equipment 3 and attaching the waterproof cap 33 are formed at substantially four corners of the top plate 311 of the cabinet 31. A fixing cap 5 is attached to the screw hole 31a on the back surface side, and one end of the first reinforcing wire 41 is fixed.

The fixing cap 5 includes a fixing bolt 50 in which a male screw portion 51 screwed into the screw hole 31a and a hexagon head 52 are integrally formed concentrically, and is waterproof between the hexagon head 52 and the top plate 311. A ring 53, a shock absorbing plate 54, and a holding plate 55 are arranged. That is, the waterproof ring 53 is a packing made of rubber or the like, and is arranged in a ring shape on the upper surface of the top plate 311 to prevent rainwater or the like from entering the cabinet 31. The shock absorbing plate 54 is arranged in the ring of the waterproof ring 53 and has a disk shape made of rubber or a spring to absorb the impact, and a hole for inserting the male screw portion 51 is formed in the central portion. Has been done. The holding plate 55 has a disk shape arranged on the upper surface of the waterproof ring 53 and the shock absorbing plate 54, and presses the waterproof ring 53 and the shock absorbing plate 54, and is for inserting the male screw portion 51 into the central portion. Hole is formed. Then, the fixing bolts 50 are tightened to the screw holes 31a, so that they are attached as an integral fixing cap 5. Here, the holding plate 55 may be arranged up to the adjacent screw hole 31a.

Further, a wire insertion hole 50a penetrating the center of the fixing bolt 50 is formed, and one end of the first reinforcing wire 41 is inserted into the wire insertion hole 50a. Then, by attaching the clasp 411 to the tip of one end, one end of the first reinforcing wire 41 is fixed to the fixing cap 5, that is, the upper part of the cabinet 31.

On the other hand, the other end and the lower end of the first reinforcing wire 41 are fixed to the hand hole 2 via the implant bolt 61 provided in the hand hole 2. That is, as shown in FIG. 6, two implant bolts (anchor bolts and the like) 61 are arranged in parallel in the horizontal direction on the upper side wall of the hand hole 2, and a support pin 62 is arranged between the implant bolts 61. It is set up. Here, the implant bolt 61 and the support pin 62 may be provided at the time of forming the hand hole 2, or may be provided by post-processing / additional machining on the existing hand hole 2.

Further, a first mounting plate 63 having a substantially rectangular plate shape, having bolt insertion holes 63a formed at both ends and a pin insertion hole 63b formed between the bolt insertion holes 63a is provided. Then, with the other end of the first reinforcing wire 41 bent so as to wrap around the support pin 62, the support pin 62 is inserted into the pin insertion hole 63b of the first mounting plate 63, and the implant bolt 61 is bolted. It is inserted into the insertion hole 63a, the other end of the first reinforcing wire 41 is pressed by the first mounting plate 63, and the nut 64 is tightened. In this way, the other end of the first reinforcing wire 41 is fixed to the implant bolt 61, that is, the upper part of the hand hole 2.

Further, the second reinforcing wire 42 extends from the lower part of the road device 3 to the upper part of the hand hole 2, and extends straight in parallel with the first reinforcing wire 41 (along the back side of the road device 3). Has been done. Further, one end portion and the upper end portion thereof are fixed to the foundation base 32 of the road device 3. That is, in this embodiment, as shown in FIG. 7, the cabinet 31 and the foundation base 32 are fixed by using the connecting bolts 321 and the like connecting the cabinet 31 and the base 32, and their insertion holes. Specifically, it includes a second mounting plate 7 which is disk-shaped and has a bolt insertion hole 7a formed in the center.

Then, in a state where one end of the second reinforcing wire 42 is bent so as to be wound around the male screw portion of the connecting bolt 321, the male screw portion of the connecting bolt 321 is inserted into the bolt insertion hole 7a, and the second mounting is performed. One end of the second reinforcing wire 42 is pressed by the plate 7, and the nut 322 is tightened. In this way, one end of the second reinforcing wire 42 is fixed to the connecting bolt 321 that is, the foundation base 32 of the road equipment 3. Here, in the case where the second reinforcing wire 42 is arranged on the existing road equipment 3, when the length of the existing connecting bolt 321 is short, it is replaced with the long connecting bolt 321 to reinforce the second. Allows one end of the wire 42 to be pinched.

On the other hand, the other end and the lower end of the second reinforcing wire 42 are fixed to the hand hole 2 via the implant bolt 61, similarly to the other end of the first reinforcing wire 41.

Such reinforcing wires 41 and 42 are arranged one on each side when viewed from the front of the road device 3. That is, two first reinforcing wires 41 are arranged on the left and right sides of the road device 3, and two second reinforcing wires 42 are also arranged on the left and right sides of the road device 3. Here, if the road device 3 can be effectively supported so as not to collapse, the first reinforcing wire 41 and the second reinforcing wire 42 may be arranged so as to overlap each other, or may be arranged so as not to overlap each other. May be good. Further, more reinforcing wires 41 and 42 may be arranged according to the weight and size of the road device 3, or a plurality of reinforcing wires 41 and 42 may be arranged together (bunched). May be good.

Further, in this embodiment, when the road device 3 is impacted from the road side due to a vehicle collision or the like, first, as shown in FIG. 1 (b), the road device 3 is slightly tilted. The reinforcing wire 41 of 1 is taut and absorbs the impact. Further, as shown in FIG. 1 (c), in a state where the road device 3 is further slightly tilted, the second reinforcing wire 42 is also taut to absorb the impact, and the road device 3 is supported by both the reinforcing wires 41 and 42. Reinforcing wires 41 and 42 are arranged so that the road device 3 does not collapse or fall on the sidewalk side.

Here, the fact that the road device 3 does not collapse or fall means that the road device 3 does not tilt (does not fall) at all, or does not tilt more than a predetermined angle, and the predetermined angle means that the surrounding people or things do not. It is an angle that does not cause damage, harm, or damage the electric equipment, cables, or the like in the road equipment 3. Therefore, the state of FIGS. 1 (b) and 1 (c) in which the reinforcing wires 41 and 42 are taut is a state in which the road device 3 is tilted below a predetermined angle or is not tilted at all, and FIG. 1 (a) is shown. The reinforcing wires 41 and 42 may be arranged in a taut state from the normal state shown in (1) (before receiving an impact).

As described above, according to the collapse prevention structure 1, one end is fixed to the cabinet 31 and the other end is fixed to the hand hole 2 when the road device 3 is impacted by a vehicle collision or the like. Since the reinforcing wires 41 and 42 are taut and the road equipment 3 is supported by the hand hole 2 via the reinforcing wires 41 and 42, it is possible to prevent and suppress the road equipment 3 from collapsing or falling. Further, since only the elongated linear reinforcing wires 41 and 42 are arranged, the configuration is simple, and the electric equipment in the road equipment 3 and the cables in the hand hole 2 are arranged and inspected. It is less likely to get in the way. In other words, reinforcing wires 41 and 42 are arranged at desired and arbitrary positions without disturbing (without restrictions) the arrangement of electrical equipment and inspection work to prevent the road equipment 3 from collapsing. It is possible and the degree of freedom of arrangement is high. Moreover, since the reinforcing wires 41 and 42 are arranged in the cabinet 31 of the road equipment 3 and in the hand hole 2 and are not exposed to the outside, not only the appearance is good, but also the reinforcing wires 41 and 42 are exposed to wind and rain. It is not exposed and deteriorates.

Further, in this embodiment, the reinforcing wires 41 and 42 are arranged so that the road device 3 does not fall in a predetermined direction, so that the reinforcing wires 41 and 42 are arranged so as not to fall on the sidewalk side. It is possible to prevent and suppress damage and harmful effects to people and things.

Further, one end of the first reinforcing wire 41 is fixed to the cabinet 31 via a screw hole 31a for a hanging bolt provided in the cabinet 31. That is, since the first reinforcing wire 41 is fixed by utilizing the screw hole 31a provided for the hanging bolt, the cabinet 31 is provided with a screw hole or the like only for fixing the first reinforcing wire 41. There is no need. Further, the first reinforcing wire 41 can be fixed to the existing cabinet 31 having the screw holes 31a for the hanging bolts without any additional work. That is, the collapse prevention structure 1 can be easily and quickly applied to the existing cabinet 31, that is, the road device 3.

Further, since the other ends of the reinforcing wires 41 and 42 are fixed to the hand hole 2 via the implant bolt 61 provided in the hand hole 2, the reinforcing wires 41 and 42 are firmly fixed to the hand hole 2. The wire. Therefore, the road device 3 is firmly supported by the hand hole 2 via the reinforcing wires 41 and 42, and it is possible to further prevent / suppress the road device 3 from collapsing or falling.

Although the embodiment of the present invention has been described above, the specific configuration is not limited to the above-described embodiment, and even if there is a design change or the like within a range that does not deviate from the gist of the present invention. Included in the invention. For example, the fixing position / fixing method of the ends of the reinforcing wires 41 and 42 may be other than the above method. For example, one end of the second reinforcing wire 42 is fixed via the connecting bolt 321. However, one end of the second reinforcing wire 42 is wound around the member of the base 32 and fixed with a clasp. It is also good. Alternatively, a hook may be provided at the end of the reinforcing wires 41 and 42, and the hook may be locked and fixed to a member of the cabinet 31 or the base 32. Further, the ends of the reinforcing wires 41 and 42 may be fixed to the ring of the hanging bolt. Alternatively, it may be fixed to an existing cable lead-in hook or the like in the hand hole 2.

Further, the arrangement position and arrangement direction of the reinforcing wires 41 and 42 may be other than the above. For example, the reinforcing wires 41 and 42 may be arranged along the front (front) side of the cabinet 31, or may be arranged so as to extend diagonally from the back side to the front side of the cabinet 31.

By the way, when the collapse prevention structure 1 is applied to the existing road equipment 3, a partition member for partitioning the hand hole 2 and the road equipment 3 through a cable may be arranged on the base 32. In this case, the reinforcing wires 41 and 42 are arranged by forming holes in the partition member and passing the reinforcing wires 41 and 42 through the partition member, or by passing the reinforcing wires 41 and 42 through a gap between the foundation base 32 and the partition member. It will be possible to set up.

1 Road equipment collapse prevention structure 2 Hand hole 3 Road equipment 31 Cabinet 31a Screw holes for hanging bolts 32 Foundation base 321 Connecting bolts 41 First reinforcing wire (reinforcing wire)
42 Second reinforcing wire (reinforcing wire)
5 Fixing cap 61 Implanting bolt 63 First mounting plate 7 Second mounting plate G Ground

Claims (4)

It is a collapse prevention structure for road equipment that prevents the road equipment installed on the hand hole formed in the ground from collapsing.
It is provided with a reinforcing wire which is arranged in the road device and the hand hole in an elongated line shape, one end of which is fixed to the road device, and the other end of which is fixed to the hand hole.
The reinforcing wire is arranged so as to be stretched so that the road equipment does not fall when the road equipment is impacted.
A collapse prevention structure for road equipment that is characterized by this. The reinforcing wire is arranged so that the road device does not fall in a predetermined direction.
The collapse prevention structure for road equipment according to claim 1. One end of the reinforcing wire is fixed to the road device via a screw hole for a hanging bolt provided in the road device.
The collapse prevention structure for road equipment according to any one of claims 1 or 2. The other end of the reinforcing wire is fixed to the hand hole via an implant bolt provided in the hand hole.
The collapse prevention structure for road equipment according to any one of claims 1 to 3, characterized in that.

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