JP4926731B2 - Extension-compatible telephone pole - Google Patents

Description

  The present invention relates to a power pole (power pole, communication pole) with a power line or a communication line attached thereto, and more particularly, to an expansion-compatible power pole capable of adding base station equipment and the like.

With the installation of electrical equipment, grounding work may be required, and this grounding work requires excavating the ground to form a buried hole and embedding a ground electrode in the ground. And the ground electrode for simplifying such burial work is known (for example, refer to patent documents 1). The ground electrode is formed by bending a copper plate into a cylindrical shape and mounting it around the buried portion (lower end) of the utility pole. By installing the utility pole on the ground, the ground electrode is buried in the ground. For this reason, it is not necessary to separately perform a burying work for burying the ground electrode in the ground.
JP 2005-78855 A

  By the way, in mobile phone communication or the like, base station equipment may be installed (added) on an existing telephone pole as a countermeasure for a dead zone where communication (call) is impossible or difficult. This base station equipment has a role of performing wireless communication with a terminal such as a mobile phone and relaying communication between the terminal and the telephone network, and mainly includes an antenna and a radio (transceiver). And it took much labor and time to install such base station equipment on an existing utility pole.

  That is, a protective pipe is attached to the utility pole, and the pole transformer and the radio equipment of the base station equipment are connected by a power line. In addition, a long and narrow pipe with an earth wire inserted is installed along the power pole, and the ground is excavated to embed one end of the earth wire in the ground and connect the other end to the radio to ground the radio. To do. Furthermore, in order to attach the antenna, it is necessary to secure an installation space by attaching an arm or the like to the utility pole. Furthermore, in order to connect the antenna and the wireless device, it is necessary to attach a protective tube to the utility pole, lay a feeder line, and connect the antenna and the wireless device. And the necessity of such installation work was the same also in the utility pole provided with the ground electrode as described in the said patent document 1. FIG.

  Therefore, an object of the present invention is to provide an extension-compatible power pole that can easily add a radio device or an antenna of a base station facility even after being installed on the ground.

In order to achieve the above object, an invention according to claim 1 includes a utility pole body, a ground box, and a ground wire, wherein the ground box is connected to the ground terminal, and the ground terminal is electrically connected to the ground terminal. And a device terminal to which a device ground wire of an external device such as a radio can be connected, and is disposed on a side wall of the ground portion of the utility pole body, and the ground wire extends in the axial direction of the utility pole body. The lower end of the power pole body is located in the underground buried portion, the upper end is connected to the earth terminal of the earth box, and the lead-in wire from the pole transformer is connected to the earth box. An extension-compatible power pole comprising: a possible power receiving terminal; and a power feeding terminal electrically connected to the power receiving terminal and capable of connecting a power line from the external device .
(Function)
When the underground portion of the utility pole body is embedded in the ground, the lower end portion of the ground wire is also embedded in the ground, and the ground wire is grounded. Then, for example, the base station equipment radio is mounted near the ground box and the radio equipment ground wire is connected to the equipment terminal of the ground box, so that the radio is grounded via the ground terminal and the ground wire. . In addition, by connecting the lead-in wire of the pole transformer to the power receiving terminal and connecting the power line of the radio device to the power supply terminal, power can be supplied from the pole transformer to the radio device.

  According to a second aspect of the present invention, in the extension-compatible electric pole according to the first aspect, a mounting space for mounting an antenna is secured at an upper end portion of the electric pole main body.

  The invention according to claim 3 is the extension-compatible electric pole according to any one of claims 1 and 2, wherein the electric pole main body has a hollow portion along the axial direction, and the ground portion of the electric pole main body A through hole communicating with the hollow portion is formed in the side wall of the power source, the ground box is disposed in the vicinity of the through hole, the ground wire is disposed in the hollow portion of the utility pole body, and an upper end portion thereof Is connected to the ground terminal of the ground box through the through hole.

According to a fourth aspect of the present invention, in the extension-compatible electric pole according to the third aspect, a second through hole communicating with the hollow portion is formed in the vicinity of the through hole on the side wall of the ground portion of the main pole body. A third through hole communicating with the hollow portion is formed in the upper end portion of the utility pole body.
(Function)
For example, the antenna of the base station equipment is attached to the mounting space at the upper end of the utility pole body, and the radio of the base station equipment is attached near the second through hole. Then, the feeder line is arranged in the hollow portion of the utility pole body, the feeder line is connected to the radio from the second through hole, and the feeder line is connected to the antenna from the third through hole, so that the feeder line is The wireless device and the antenna are communicably connected via each other.

  According to the first aspect of the present invention, the ground wire is grounded by burying the underground burying portion of the utility pole body in the ground, that is, by installing the extension-supporting utility pole on the ground. And if you want to add radio equipment for base station equipment after installing this extension-compatible power pole, you can easily ground the radio equipment etc. by connecting the radio equipment to the equipment terminal of the earth box . In other words, as in the past, an elongated pipe with an earth wire inserted into the existing utility pole is installed along the utility pole, or a buried hole is newly excavated to bury the lower end of the earth wire in the ground There is no need to do. As a result, it is possible to easily add a radio device or the like even after installing the utility pole on the ground.

  According to the second aspect of the present invention, since the installation space is secured at the upper end of the utility pole body, the antenna for the base station equipment, etc. is installed after the extension-type utility pole is installed on the ground. Also, the antenna can be mounted in the mounting space. Therefore, it is not necessary to secure an installation space by attaching an arm or the like for attaching the antenna to the utility pole as in the conventional case, and the antenna can be easily added even after the utility pole is installed on the ground. .

  According to the third aspect of the present invention, the ground wire is disposed in the hollow portion of the utility pole body, and the upper end portion thereof is connected to the ground terminal of the ground box through the through hole. It is possible to easily and orderly arrange equipment and devices on the main body of the utility pole without being exposed to the outside of the side wall. Further, since the ground wire is not exposed, damage to the ground wire can be suppressed.

  According to the fourth aspect of the invention, since the second through hole and the third through hole are formed in the power pole main body in advance, when connecting the radio device disposed in the power pole main body to the antenna or the like. In addition, it is not necessary to attach a protective pipe to a utility pole and lay a feeder line as in the conventional case. For this reason, even after installing this utility pole on the ground, it is possible to easily add radio equipment, antennas, and the like. In addition, when laying a feeder line as in the conventional case, it is dangerous because it is performed in the vicinity of the high-voltage equipment, but according to the present invention, the feeder line is installed in the hollow portion of the utility pole (in the utility pole). Because it is laid, dangerous work can be avoided.

Further, according to the first aspect of the present invention, since the grounding box is provided with the power receiving terminal and the power feeding terminal, when the radio equipment of the base station equipment is disposed on the power pole body, the lead-in wire of the pole transformer is provided. The power from the pole transformer can be supplied to the wireless device or the like simply by connecting to the power receiving terminal and connecting the power line of the wireless device to the power supply terminal . For this reason, even after installing this utility pole on the ground, it is possible to easily add radio equipment and the like.

  The present invention will be described below based on the illustrated embodiments.

(Embodiment 1)
FIG. 1 is a front view showing an extension-compatible electric pole 1 according to this embodiment. The extension-compatible power pole 1 is provided with a power pole body 11, a ground box 12, and a ground wire 13 in advance before being installed on the ground G.

  The utility pole body 11 is a concrete hollow type (tubular type), and has a hollow portion 11a along the axial direction as shown in FIG. In addition, on the side wall of the ground portion 11b located on the ground side when installed on the ground G, the ground box 12 is disposed at the first insertion hole (through hole, second hole) communicating with the hollow portion 11a. A through-hole) 11c is formed. The size of the through hole 11c is set so that the ground wire 13 and a power supply line 16 to be described later can be inserted. Here, the position where the earth box 12 is disposed (the position where the first insertion hole 11c is formed) is set to a position range in which additional equipment and devices such as a wireless device 14 described later can be disposed.

  A mounting space 11 d for mounting an antenna 15 described later is secured at the upper end of the utility pole body 11. That is, no other equipment / device is arranged in the mounting space 11d. Furthermore, when the hollow portion 11a reaches the upper end of the utility pole body 11, an upper opening (third through hole) 11e is formed. A cap (not shown) is attached to the upper opening 11e. Further, a second insertion hole 11g communicating with the hollow portion 11a is formed in the side wall of the underground portion 11f located on the underground side when installed on the ground G.

  As shown in FIG. 3, the ground box 12 has an insertion window 12b having the same diameter as the first insertion hole 11c of the utility pole body 11 formed on the bottom plate of the box-shaped body case 12a. The earth box 12 is attached to the utility pole body 11 so that the insertion hole 11c is concentric. The main body case 12a of the earth box 12 is provided with an earth terminal 12c for connecting the earth wire 13 and an equipment terminal 12d electrically connected to the earth terminal 12c. Further, a cable hole 12e is formed in the upper wall of the main body case 12a so that a power supply line 16 and a radio ground wire 14a, which will be described later, can be inserted. A cap (not shown) is attached to the cable hole 12e, and a seal member (not shown) is disposed between the main body case 12a and the lid 12f to ensure water tightness. .

  The ground wire 13 is disposed along the axial direction in the hollow portion 11a of the utility pole body 11, and the lower end portion 13a reaches the underground buried portion 11f of the utility pole body. That is, even if it goes out of the utility pole body 11 through the second insertion hole 11g and is separated from the utility pole body 11 by a predetermined distance, the lower end of the ground wire 13 is positioned at the same level as the lower end of the underground buried portion 11f. In addition, a length (depth) is set. On the other hand, the upper end portion 13 b of the ground wire 13 is connected to the ground terminal 12 c of the ground box 12 through the first insertion hole 11 c of the utility pole body 11 and the insertion window 12 b of the ground box 12.

  Next, the operation of the extension-compatible electric pole 1 having such a configuration will be described.

  First, the extension-compatible electric pole 1 is installed on the ground G. That is, a buried hole is excavated in the ground G, the underground buried portion 11f of the utility pole body 11 is buried in the ground, a copper plate or the like is attached to the lower end portion 13a of the ground wire 13, and the lower end portion 13a and the copper plate are Is buried in the ground. Thereby, the ground wire 13 is grounded. Next, the installation is completed by installing facilities / equipment such as pole transformers (pillar transformers) on the extension-compatible electric pole 1 and arranging distribution lines, service lines, and the like.

  After installing the extension-compatible electric pole 1 in this way, for example, in order to add base station equipment such as cellular phone communication, the following may be performed. First, as shown in FIG. 4, the radio 14 of the base station equipment is attached in the vicinity of the upper side of the ground box 12. Subsequently, the cap of the cable hole 12e of the ground box 12 is removed, and the radio ground wire 14a of the radio 14 is positioned in the ground box 12 via the cable hole 12e as shown in FIG. 14a is connected to the equipment terminal 12d. Thereby, the radio device 14 is grounded via the ground terminal 12 c and the ground wire 13.

  Next, the antenna 15 of the base station equipment is attached to the installation space 11 d of the utility pole body 11. Here, FIG. 4 shows a case where the antenna 15 has a ring-shaped base 15a, and the antenna 15 can be mounted by mounting the base 15a in the mounting space 11d. There may be. Then, the feeder line 16 is disposed in the hollow portion 11a of the utility pole body 11, and the lower end portion 16a thereof is passed through the first insertion hole 11c of the utility pole body 11 and the insertion window 12b of the earth box 12 into the earth box 12. Position. Further, the lower end portion 16a of the feeder line 16 is connected to the radio device 14 through the cable hole 12e. Here, by arranging a preliminary line such as a wire in the hollow portion 11 a of the utility pole body 11 in advance, the feeding line 16 may be easily arranged.

  On the other hand, the cap of the upper opening 11e of the utility pole body 11 is removed, and the upper end 16b of the feeder 16 is pulled out of the utility pole body 11 from the upper opening 11e and connected to the antenna 15 as shown in FIG. Thereby, the radio device 14 and the antenna 15 are connected via the feeder line 16 so as to be communicable. Then, by connecting the pole transformer and the radio device 14 and supplying power to the radio device 14 from the pole transformer, the extension of the base station facility is completed.

  As described above, according to this extension-compatible electric pole 1, the earth wire 13 can also be grounded when the underground buried portion 11 f of the utility pole body 11 is buried in the ground. Then, when it is desired to add base station equipment after installing the extension-type power pole 1, simply connecting the radio ground wire 14 a of the radio 14 to the equipment terminal 12 d of the ground box 12 makes the radio 14 easy. Can be grounded. In other words, as in the past, an elongated pipe with an earth wire inserted into the existing utility pole is installed along the utility pole, or a buried hole is newly excavated to bury the lower end of the earth wire in the ground There is no need to do.

  Moreover, since the attachment space 11d is secured at the upper end of the utility pole body 11, it is not necessary to secure the attachment space by attaching an arm or the like for attaching the antenna to the utility pole as in the prior art. Furthermore, since the first insertion hole 11c and the upper opening 11e are formed in the power pole body 11 in advance, when connecting the radio device 14 and the antenna 15 with the feeder line 16, the power pole is connected to the power pole as in the past. There is no need to install protective pipes and lay feeders.

  As a result of the above, it is possible to easily add the radio device 14 and the antenna 15 even after the extension-type power pole 1 is installed on the ground G. Such an effect is not limited to the case where base station equipment is added to the existing extension-ready utility pole 1, but for example, this extension-ready utility pole 1 is installed between the existing conventional utility pole and the utility pole, This is also demonstrated when installing base station equipment. In other words, when installing a new utility pole between existing utility poles and installing a base station facility, install the extension-type utility pole 1 between the existing utility pole and Equipment can be installed easily.

  Furthermore, since the ground wire 13 is disposed in the hollow portion 11a of the utility pole body 11, the ground wire 13 is not exposed to the outside of the side wall of the utility pole body 11, and facilities and equipment are arranged on the utility pole body 11 easily and orderly. Can be installed. Further, since the ground wire 11 is not exposed, damage to the ground wire 11 can be suppressed.

(Embodiment 2)
FIG. 6 is a partially enlarged view showing the extension-compatible electric pole 2 according to this embodiment. The same components as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted. The extension-compatible power pole 2 is provided with a power pole body 11, a distribution board (distribution board) 22, and a ground wire 13 in advance before being installed on the ground G.

  The distribution board 22 receives power from a pole transformer attached to the utility pole body 11 and distributes the power to an external device (external). An insertion window 22b having the same diameter as the first insertion hole 11c of the utility pole body 11 is formed on the bottom plate of the box-shaped main body case 22a of the distribution board 22, and the insertion window 22b and the first insertion hole 11c Are attached to the utility pole body 11 so that they are concentric. The main body case 22a is provided with a ground terminal 22c for connecting the ground wire 13 and a device terminal 22d electrically connected to the ground terminal 22c. The ground terminal 22c includes the first embodiment. Similarly, the upper end portion 13b of the ground wire 13 is connected. Thus, distribution board 22 has the function of earth box 12 in the first embodiment.

  Further, the main body case 22a of the distribution board 22 is provided with a power receiving terminal 22e and a plurality of branch circuit power feeding terminals 22f electrically connected to the power receiving terminal 22e. On the other hand, a cable hole (not shown) is formed in the wall (upper wall) on the power receiving terminal 22e side and the wall (lower wall) on the power supply terminal 22f side of the main body case 12a. 17 and the power supply line 14b can be inserted. Here, the distribution board 22 may be provided with a breaker or a transformer as necessary. In addition, a seal member is disposed between the main body case 22a and the lid 22g to ensure water tightness.

  Next, an operation and the like of the extension-compatible electric pole 2 having such a configuration will be described.

  First, in the same manner as in the first embodiment, the extension-compatible electric pole 2 is installed on the ground G, and the ground wire 13 is grounded. Next, the installation is completed by arranging facilities and equipment such as pole transformers on the extension-compatible electric pole 2 and arranging distribution lines, service lines, and the like.

  In order to add the base station equipment after installing the extension-compatible electric pole 2 in this way, the following may be performed. First, as shown in FIG. 7, the radio 14 of the base station equipment is attached near the lower side of the distribution board 22. Subsequently, the radio ground wire 14a of the radio 14 is positioned in the distribution board 22 through the cable hole, and the radio ground wire 14a is connected to the device terminal 22d. As a result, the wireless device 14 is grounded via the ground terminal 22 c and the ground wire 13.

  Next, as in the first embodiment, the antenna 15 of the base station equipment is attached to the attachment space 11 d of the utility pole body 11, and the radio device 14 and the antenna 15 are connected by the feeder line 16. Subsequently, the lead-in wire 17 connected to the pole transformer is connected to the power receiving terminal 22e of the distribution board 22 through the cable hole, and the power supply line 14b from the radio unit 14 is connected to the distribution board through the cable hole. 22 is connected to the power supply terminal 22f. Thereby, the pole transformer and the radio device 14 are connected via the distribution board 22, and power can be supplied from the pole transformer to the radio device 14.

  As described above, according to this extension-compatible power pole 2, the distribution board 22 is preliminarily disposed on the power pole body 11. Therefore, when the base station equipment radio 14 is disposed on the power pole body 11, By simply connecting the lead-in wire 17 of the pole transformer to the power receiving terminal 22e and connecting the power line 14b of the radio device 14 to the power supply terminal 22f, power can be supplied from the pole transformer to the radio device 14. For this reason, even after the extension-type power pole 2 is installed on the ground G, it is possible to more easily add the radio device 14 (base station equipment).

  As mentioned above, although Embodiment 1 and 2 of this invention were demonstrated, a concrete structure is not restricted to these Embodiment, There exists a change of the design etc. of the range which does not deviate from the summary of this invention. Are also included in the present invention. For example, in the first embodiment, the earth box 12 is disposed in the vicinity of the first insertion hole (through hole) 11c so that the first insertion hole 11c and the insertion window 12b are concentric. Depending on the location of the wireless device 14 and the like, it may be as follows. That is, without providing the insertion window 12b, the ground box 12 is disposed near the first insertion hole 11c and the upper end portion 13b of the ground wire 13 drawn from the first insertion hole 11c is connected to the ground box 12. The surface opening may be connected to the ground terminal 12c.

  In the first embodiment, the first insertion hole 11c serves as both the through hole and the second through hole. However, the ground wire 13 is inserted according to the position and size of the wireless device 14. You may make it provide the through-hole which inserts and the 2nd through-hole which inserts the feeder 16 separately. Further, the upper opening 11e is formed as a third through hole by the hollow portion 11a of the utility pole body 11 reaching the upper end. However, depending on the shape of the utility pole body 11 and the method of attaching the antenna 15, the utility pole A third through hole communicating with the hollow portion 11 a may be formed on the side wall of the upper end portion of the main body 11. Moreover, although the case where the base station equipment is added has been described, it is needless to say that the present invention can be applied to the case where equipment / equipment other than the base station equipment is added.

  Furthermore, an outlet may be provided instead of the power supply terminal 22f in the second embodiment, and an earthed outlet may be provided instead of the ground device terminal 22d and the power supply terminal 22f. Thereby, the radio device 14 can be easily arranged without affecting the power supply side. Moreover, by making the distribution board 22 lockable, unauthorized construction and power theft are prevented, and the owner of the utility pole 2 passes the key of the distribution board 22 to the radio installer, thereby making the installation work more It becomes possible to carry out smoothly.

It is a front view which shows the extension corresponding | compatible type | system | group electric pole which concerns on Embodiment 1 of this invention. It is the upper part enlarged view of the utility pole main body of the extension corresponding | compatible telephone pole of FIG. It is a front view which shows the state which opened the earth box of the extension corresponding | compatible electric pole of FIG. It is a top front view which shows the state which added the radio | wireless machine and antenna of base station equipment to the extension corresponding | compatible electric pole of FIG. It is a front view which shows the state which opened the earth box of the extension corresponding | compatible electric pole of FIG. 1, and expanded the radio | wireless machine of base station equipment. It is a front view which shows the state corresponding to the extension corresponding | compatible electric pole which concerns on Embodiment 2 of this invention, and opened the distribution board. It is a front view which shows the state which opened the distribution board of the extension corresponding | compatible type | mold utility pole of FIG. 6, and expanded the radio | wireless machine of base station equipment.

Explanation of symbols

1, 2 Extension-compatible electric pole 11 Electric pole body 11a Hollow part 11b Ground part 11c First insertion hole (through hole, second through hole)
11d Mounting space 11e Upper opening (third through hole)
11f Underground buried portion 11g Second insertion hole 12 Ground box 12a Main body case 12b Insertion window 12c Ground terminal 12d Equipment terminal 12e Cable hole 13 Ground wire 13a Lower end portion 13b Upper end portion 14 Radio unit 14a Radio unit ground wire 14b Power line 15 Antenna 16 Feed line 17 Lead-in line 22 Distribution panel (distribution panel, ground box)
22a Main unit case 22b Insertion window 22c Ground terminal 22d Equipment terminal 22e Power receiving terminal 22f Power feeding terminal G Ground

Claims (4)

It is equipped with a power pole body, a ground box, and a ground wire.
The ground box includes a ground terminal for connecting the ground wire, and a device terminal that is electrically connected to the ground terminal and can be connected to a device ground wire of an external device such as a radio device. Arranged on the side wall of the part,
The ground wire is disposed along the axial direction of the utility pole body, its lower end is located in the underground buried portion of the utility pole body, and its upper end is connected to the ground terminal of the earth box ,
The ground box includes a power receiving terminal capable of connecting a lead-in wire from a pole transformer, and a power feeding terminal electrically connected to the power receiving terminal and capable of connecting a power line from the external device. An extension-compatible telephone pole.   The extension-compatible electric pole according to claim 1, wherein an installation space for attaching an antenna is secured at an upper end portion of the electric pole main body. The electric pole body has a hollow portion along the axial direction;
A through hole communicating with the hollow portion is formed on the side wall of the ground portion of the utility pole body,
The ground box is disposed in the vicinity of the through hole;
The ground wire is disposed in a hollow portion of the utility pole body, and an upper end portion thereof is connected to a ground terminal of the ground box through the through hole. The extension type utility pole as described in item 1. A second through hole that communicates with the hollow portion is formed in the vicinity of the through hole on the side wall of the ground portion of the utility pole body, and a third through hole that communicates with the hollow portion at the upper end portion of the utility pole body. The extension-compatible electric pole according to claim 3, wherein:

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