JPH11243631A - Power-supply pole - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a power-supply pole in which a power-supply cable can be housed easily, in which an appliance body can be attached simply to a pole and whose construction property is enhanced,by a method wherein the tension stop part of the powersupply cable is formed near the tip of the pole which is erected and installed in such a way that its lower part is buried in the ground. SOLUTION: A power-supply pole 1 is constituted while a pole 2 which is erected and installed in such a way that its lower part is buried in the ground G, and an appliance body 3 which is installed at the tip of the pole 2, are contained. In addition, the appliance body 3 is constituted while a base 4 and a casing 5 which is installed at the upper part of the base 4 are contained. The pole 2 is a cylindrical steel pipe, and its upper end part is provided with a tension-stop fixation plate 20 which protrudes from the inside. In addition, a power-supply line or the like is wired through a corrugated rigid sysnthetic resin pipe F when it is buried in the ground so as to be wired. In the pole 20, a through hole which is used to attach and mount the tension-stop fixation plate 20 and a hole which is used to place the base 4 so as to be attached and mounted are bored and formed. As a result, when the appliance body 3 is attached to the pole 2, the power-supply line is housed easily, the appliance body 3 can be attached to the pole 2 simply, and the construction property of the power-supply pole 1 is excellent.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power pole installed outdoors.

[0002]

2. Description of the Related Art Conventionally, when electrical appliances are installed or temporarily used outdoors, power is taken from a waterproof outlet provided on the outer wall of a building or a distribution board installed outdoors. Was. However, since the waterproof outlet can be provided only on the outer wall of the building, it is difficult to take power at an arbitrary place such as a place away from the building. In order to solve the above-mentioned problem, Japanese Patent Application No. 9-028100 has been proposed. However, this device has the following problems.

That is, in a conventional power pole,
At night, when trying to use an electric appliance outdoors, it is difficult to insert the power plug from the electric appliance into the outlet provided on the power pole, and it is difficult to insert it into the outlet provided on the power pole. In many cases, a power source of a nighttime outdoor lighting device such as a lamp is connected, and there is a problem that a power pole that can easily attach the outdoor lighting device as needed is desired.

Therefore, the present inventors have developed a prototype power supply pole 1 as shown in FIG. 9 which can easily attach an outdoor lighting fixture 8 as needed. The power pole 1 includes a pole 2 buried and buried underground G, and a pole 2
And an appliance main body 3 provided at an upper portion of the appliance main body, and one or more outlets are disposed in the appliance main body 3. In addition,
More specifically, the device main body 3 is obtained by integrally assembling a casing 5 on an upper portion of a base 4 attachable to an upper portion of the pole 2, and one or a plurality of outlets are disposed in the casing 5.

Prior to commercialization, the present inventors conducted trial installation and construction of the power pole 1 and examined its workability and assemblability. It was found that there was a problem like this.

[0006]

That is, first, the pole 2 is buried in the underground G and erected, and then the instrument body 3 is mounted on the pole 2. But before that, with respect to the power cable W _out feed and the input power cable W _in which drawn through inside the pole 2 performs underground wiring work, tension stop fixing plates provided in the lower portion of the instrument body 3 The tension is stopped by using a tension stop 24 at 20. Then, the power supply from the position that was anchorage of the fixture body 3 side cable W _in, W
The outer sheath of “ _out” is peeled off, and the core wire covered with the thin and separated inner insulating coating is processed to be electrically connected to the instrument body 3.

[0007] The tension stop is a pressing process performed to prevent a power supply line from being disconnected from a connection portion due to a tensile force applied to the power supply line, thereby causing a short circuit accident or a ground fault accident.

After that, the power cable W having been tension-stopped
_in, while accommodating W _out, as shown in FIG. 10, although attaching the instrument body 3 to the distal end of the pole 2, the power cable W _in, W _out is thick because it is a cable having a thick outer sheath, the power cable W _in, storage of W _out there has been a problem that is difficult.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object of the present invention is to carry out underground wiring work and to provide a tension stop to a power cable drawn through a pole. Another object of the present invention is to provide a power pole excellent in workability, in which the power cable can be easily stored when the instrument body to which the power cable is connected is attached to the pole, and the instrument body can be easily attached to the pole.

[0010]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention relates to a power pole having a pole buried in the ground with its lower part erected and an instrument body provided at the tip of the pole. A power cable tension stop is provided near the tip of the pole.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of a power pole according to the present invention will be described below in detail with reference to FIGS. 1A and 1B are schematic views illustrating a power pole according to the present invention. FIG. 1A is a front view of the power pole, and FIG. 1B is a front view illustrating a manner in which a main body of the power pole is attached to the pole. It is. FIG. 2 is an exploded perspective view showing a pole of the power pole, FIG. 3 is an exploded perspective view showing a base of a main body of the power pole, and FIG. 4 is an exploded perspective view showing an internal unit incorporated in the main body of the power pole. , FIG. 5 is an exploded perspective view showing a casing main body of the power pole instrument body, FIG. 6 is an exploded perspective view showing a casing lid of the power pole instrument body,
7 is a circuit diagram showing an internal circuit of the power pole, FIG. 8 is a perspective view showing an outdoor lighting fixture attached to the power pole, and FIG. 9 is a schematic view showing a state where the outdoor lighting fixture is attached to the power pole. is there.

As shown in FIG. 1, a power pole 1 includes a pole 2 erected with its lower part buried underground G, and an instrument body 3 provided at the tip of the pole 2. Further, the device main body 3 includes a base 4 and a casing 5 provided on an upper portion of the base 4.

The pole 2 has an outer diameter of 120φ and a length of 500 m.
m, and is provided with a tension fixing plate 20 protruding from the inside at the upper end. In the case of underground wiring, a power supply line and the like are wired through a corrugated hard synthetic resin pipe F. As shown in detail in FIG. 2, the pole 2 has through holes 22, 22 for attaching a tension fixing plate 20 near the upper end,
Through holes 23, 23 for placing and attaching the base 4 are formed. The tension stop fixing plate 20 is a substantially rectangular plate-shaped metal plate, and includes a bent pole attachment portion 20a for attachment to the pole 1 and screw holes 20b, 20b for screwing the tension stopper 24. Prepare. The tension stopper 24 is a metal plate shaped like a U-shaped leg that is further bent and opened.

As shown in FIG. 3, the base 4 is made of, for example, aluminum die-casting and has an outer diameter of 120.phi. Like the pole 2, and the lower part is made one step thinner so that it can be fitted into the upper end of the pole 2. A fitting step portion 40 is formed. Screw holes 40a, 40a corresponding to the through holes 23, 23 provided near the upper end of the pole 2 are formed in the fitting step 40. A mounting step 41 for mounting the casing 5 and a fitting rib 42 having a complicated shape functioning as positioning and draining when fitting and mounting the casing 5 are provided on the upper end of the base 4. Are formed.

On the upper surface of the fitting rib 42, there are provided four screw holes 44 for attaching a semi-circular waterproof packing 43.
And screw holes 45 for fixing the casing 5. Further, on the side of the base 4 below the waterproof packing 43, cable extraction grooves 46, 46 for extracting a cabtire cable or the like connected to an outlet are formed. The lower end of the cable outlet groove 46 is formed as a downward curved surface that bends gently outward so that rainwater or the like easily flows out and that an excessive bending force is not applied to the cable. The waterproof packing 43 is made of rubber, and has cuts 43a for cutting out the cable.

The casing 5 comprises a casing body A shown in FIG. 5, a casing cap C shown in FIG. 5, and a casing lid B shown in FIG. Casing body A
Is made of die-cast aluminum, for example, and is integrally formed including the top part A1, the bottom part A2, and the side parts A3.

The top part A1 has an outer diameter of 1 like the pole 2.
20φ. On the upper surface of the top part A1, a mounting step A10 on which the casing cap C is mounted and mounted, and a ring-shaped fitting rib A11 having both a positioning function and a draining function when mounting and mounting the casing cap C. Are formed. Screw holes A101, A101 for screwing the casing cap C are drilled in the fitting rib A11.

On the top surface of the top portion A1 surrounded by the fitting rib A11, an intermediate connection terminal A13 attached with a mounting bracket A12 is fixed, and ground wires E, E are connected with earth screws A14, A14. A substantially semicircular opening A12 is provided for passage. Intermediate connection terminal A13
Is provided with a ground wire quick connection terminal hole A131 and power supply wire quick connection terminal holes A132, A132 on the front, and a ground wire E and a power supply wire quick connection terminal hole A132 corresponding to the ground wire quick connection terminal hole A131 from the rear. , a power supply line L ₁ L ₂ corresponding to A132 are drawn respectively.

When the outdoor lighting fixture 8 as shown in FIG. 8 is attached to the top of the power pole 1 as required, the ground wire 80 drawn from the outdoor lighting fixture 8 is connected to the ground wire quick connection terminal hole A131. The power lines 81, 81 drawn from the outdoor lighting fixture 8 are power line quick connection terminal holes A13.
2 and A132, respectively.

When the casing 5 is placed on the base 4, the bottom A 2 is provided at a position slightly raised from the lower end of the casing 5 to secure a space in which the fitting rib 42 of the base 4 can be fitted. I have. Bottom A2
Is formed in a substantially semi-disc shape, and has a notch A2 for screwing.
0, A20 and a power line insertion notch A21. The screw notches A20, A20 are for fixing the casing 5 on the base 4 and fixing the screws with screws, and are provided at positions corresponding to the screw holes 45, 45 provided on the upper surface of the fitting rib 42. ing. The power supply line insertion notch A21 is for inserting and inserting a power supply line buried underground and drawn from the lower end of the pole 2.

The side portion A3 is formed in a semi-cylindrical shape, and convex locking metal fittings A30, A3 are provided near both ends of one side portion.
0 is attached, and a lock pin A31 is attached in the vicinity of immediately above the lower convex locking member A30.
Although not shown, bearings (not shown) are formed near both ends of the other side to rotatably support the rotating shaft of the casing lid B.

By the way, an inner unit block 6 as shown in FIG. 4 is mounted inside the side part A3. A panel 60 formed of a synthetic resin into a substantially box shape includes mounting screws 61,
61 attaches to the inside of the side part A3. The panel 60 is provided with a recess 60a in substantially the lower half, and a pair of outlets 62a, 62b in the remaining upper half.
And an automatic flasher socket 63a for mounting an automatic flasher 63 that turns on the switch when the ambient illuminance is sensed and darkens, connectors 64, 64, 64, and an earth leakage breaker (not shown) are housed. . Flasher socket 6
3a is fixed to the inner surface of the panel 60 by fixing screws 65,65.

A through hole (not shown) is provided on the upper wall surface of the recess 60a, and a rectangular mounting frame 66 is mounted around the through hole from inside by mounting screws 67,67. A pair of outlets 62 are attached to the mounting frame 66.
a, 62b are attached side by side, and a pair of outlets 6
The blade insertion openings 62 a ₁ and 62 b _{1 of the} 2 a and 62 b are exposed on the front side of the panel 60. Outlet 6 of the present embodiment
2a and 62b are so-called retaining outlets with ground electrodes, but are not limited thereto, and may be other types of outlets. A rectangular exposure hole 68 for exposing an operation lever of an earth leakage breaker (not shown) and an automatic blinker insertion hole for attaching the automatic blinker 63 to the automatic blinker socket 63a are formed on the upper front surface of the panel 60. 69 are provided.

An earth leakage breaker (not shown) is connected to a power supply line drawn in underground wiring. The outlets 62a and 62b, the automatic blinker socket 63a, and the intermediate connection terminal A13 are connected to a connector 6 having a quick connection terminal structure.
4, 64, 64 are connected to an earth leakage breaker (not shown). The power pole 1 has an internal circuit as shown in FIG.
b of each connected to a ground electrode of the ground electrode and intermediate connection terminals A13, remaining power lines L _1, L ₂ are outlets 62a,
62b, flasher socket 63a, and intermediate connection terminal A1
3 respectively.

Therefore, in the power pole 1, the power line drawn from the underground G is first connected to an earth leakage breaker (not shown), and each of the outlets 62a and 62b is Since power is supplied to the automatic blinker socket 63a and the intermediate connection terminal A13, a leakage accident can be prevented, and safety can be improved. As shown in FIG. 5, a flat insulating sheet A32 is attached to the inside of the side portion A3 with mounting screws, and the outlets 62a and 62b and the automatic blinker socket 63a housed in the panel 60 are provided. Insulation for a charged part such as a power supply and a ground leakage breaker (not shown) is achieved. Further, an earth terminal screw 70 is attached to the bottom of the recess 60a of the panel 60. Even if a ground wire is connected to the earth terminal screw 70, grounding can be performed.

As shown in FIG. 6, the casing lid B is a semi-cylindrical member made of aluminum die-cast, and is combined with the semi-cylindrical side portion A3 of the casing body A to form a substantially cylindrical shape. At the vicinity of both ends of one side of the casing lid B, concave fittings B10 are respectively attached. Further, the convex portion of the convex locking member A30 can be detachably inserted into the concave locking member B10. Further, in the vicinity immediately above the lower concave locking metal fitting B10, a locking metal fitting B11 is provided.
It is rotatably attached to the through hole B13 via the ring B12.

The lock fitting B11 comprises a cylindrical head and a cylindrical foot portion smaller than the head portion, a split groove is formed on the end face of the head portion, and a hook fitting B14 is attached to the end face of the foot portion. You. The lock fitting B11 is configured such that when a slotted screwdriver is inserted into a split groove formed on the end face of the head and turned, the hook fitting B14 is hooked on the lock pin A31 of the casing body A, and the casing lid B is closed. I try not to open it carelessly.

A packing insertion portion B152 is provided in the vicinity of the other side of the casing lid B in the vertical direction, and a packing insertion portion B151 is provided in the vicinity of the upper end of the casing lid B in an arc shape in the horizontal direction. I have. The cross sections of the packing insertion portion B151 and the packing insertion portion B152 are each formed in a U-shaped groove shape. And this packing insertion part B
An elongated packing B17 having a rectangular cross section is inserted into the packing 151 and the packing inserting portion B152 while exposing about half of the packing. The packing B17 is made of sponge rubber.

When the casing lid B is covered on the casing body A, the packing B17 inserted into the packing insertion portion B151 is rubbed against the lower surface of the top part A1 of the casing body A, and is brought into contact therewith. The packing B17 inserted into the insertion portion B152 is rubbed against the outer surface of the side portion A3 of the casing main body A and is brought into contact with the packing B17. . Moreover, a gutter-shaped groove B16 is formed between the inner surface of the casing lid B and the packing insertion portion B151, and the groove B16 serves as a path through which rainwater that has been prevented from entering the casing 5 flows. Drain rainwater out like a gutter.

An opening window B18 as a circular lighting window is provided on the upper front surface of the casing lid B. A curved disk-shaped open window cover B180 made of transparent acrylic resin is attached to the open window B18 with mounting screws.
The external light inserted from the opening window B18 strikes the automatic blinker 63.

A pair of bearings B21, B21 having a shaft insertion hole B20 through which the shaft B19 is inserted are protruded from both ends of the other side of the casing lid B. Then, the upper end of the shaft B19 inserted into the shaft insertion holes B20, B20 of the bearings B21, B21 is supported by the periphery of the top portion A1 of the casing main body A, and the lower end of the shaft B19 is connected to the bottom of the casing main body A. By pivotally supporting the periphery of A2, the casing lid B is pivotally attached to the casing body A so as to be freely opened and closed.

Here, a pair of coil springs B22, B22 are inserted through the shaft B19, and both ends B220 of the coil springs B22, B22 are locked to the casing lid B, and the coil springs B22, B22
Is locked to the casing body A, and the coil springs B22, B22 urge the casing lid B elastically in the opening direction. The casing lid B can be elastically biased in a direction to close the casing body A as necessary.

As shown in FIG. 5, the casing cap C is made of flat, substantially cylindrical aluminum die-cast aluminum, and has step holes C1 and C1 on the side surfaces. The casing cap C is mounted on the mounting step A10 formed on the top A1 of the casing body A, and is fixed to the screw holes A101, A101 via the step holes C1, C1 by the set screws C2, C2.

Accordingly, the above-mentioned power pole 1 comprises a pole 2 erected with its lower part buried underground G, a base 4 provided on the upper part of the pole 2, and a casing 5 provided on the upper part of the base 4. When assembled, it will be as shown in FIG.

When there is a request to install the outdoor lighting fixture 8 at night, first, the fixing screws C2 and C2 are removed, and the casing cap C is removed from the top A1 of the casing 5. Then, the fitting rib A11 formed on the top part A1 is formed.
And the intermediate connection terminal A13 disposed inside the portion surrounded by the fitting rib A11 is exposed. Therefore, for example, a pole head type outdoor lighting fixture 8 as shown in FIG. 8 is prepared, and the ground wire 80 drawn from the lower part of the outdoor lighting fixture 8 is connected to the ground wire quick connection terminal hole A13 of the intermediate connection terminal A13.
1, the power supply lines 81, 81 are connected to the power supply line quick connection terminal holes A132,
A132 is inserted and connected.

Then, the ground wire 80 and the power supply wires 81, 81 are satisfactorily stored in the cylindrical mounting base 82 of the outdoor lighting fixture 8, and the mounting base 82 is fitted to the top part A1 of the casing 5. The fitting holes A11 are fitted in the fitting ribs A11, and the step holes 82a, 82a provided in the mounting base 82 are aligned with the screw holes A101, A101 formed in the fitting ribs A11. Then, the stop screws 83, 83 are screwed into the screw holes A101, A101 via the step holes 82a, 82a, so that
The outdoor lighting fixture 8 can be fixed to the upper part of the casing 5, that is, the top of the power pole 1, so that the appearance as shown in FIG. 9 is obtained.

In the outdoor lighting fixture 8 attached in this way, the operation of the automatic flasher 63 turns on and illuminates the surroundings only at dark nighttime, so that there is no waste of electric power, and at night, outdoor. To use appliances in
When the power plug from the electric appliance is inserted into the outlets 62a and 62b provided on the power pole 1, the outlets of the outlets 62a and 62b are bright and clearly visible, and the condition is good.

Further, in the above-described power pole 1, since the tension stop fixing plate 20 is provided so as to protrude from the tip of the pole 2, the casing 5 is mounted on the base 4 as shown in FIG. an instrument body 3 of the mounting state, before mounting to a pole 2 was erected and buried in the ground G, the input power cable W _in the feeding power cable W drawn out through the inside pole 2 performs underground wiring work _out can be stopped at the position of the tension stop fixing plate 20 at the tip of the pole 2.

[0039] Therefore, the only destination from a position subjected to anchorage, is stripped top side power cable W _in, thick outer sheath of W _out of the surplus length Q in the thin core wire portion suffered only the internal insulating coating was loosened Then, the tip of the extra length Q is processed to make an electrical connection to the inner unit 6 of the appliance main body 3, and then the appliance main body 3 is attached to the upper end of the pole 2 while storing the extra length Q. Since the power line in the portion of the extra length Q does not have a thick outer sheath and is thin, the portion of the extra length Q is easy to be bent without bulkiness and is easily stored.

That is, in the power pole 1 described above,
Underground wiring work power cable W _in which drawn through inside the pole 2 by performing, a W _out, together can be subjected to tension stop from the top of the outer sheath at the distal end near the pole 2, made the connection of the power line When the instrument main body is mounted on the pole, the power line can be easily stored, and the instrument main body can be easily mounted on the pole, resulting in excellent workability.

It should be noted that the present invention is not limited to the above embodiment, and the shapes and mechanisms of the tension stopper fixing plate 20 and the tension stopper 24 can be appropriately changed. Instead of providing the power cable with a tension stopping portion on the appliance body side, a tension stopping portion for stopping the power cable tension is provided on the tip end side of the pole. Also,
It goes without saying that the device body may be anything as long as it requires a power source, whether it is an outlet-mounted device or a lighting device.

[0042]

According to the present invention, in a power pole comprising a pole erected with its lower part buried in the ground and an instrument body provided at the tip of the pole, a tension of a power cable is provided near the tip of the pole. Since a stop is provided, the power cable pulled out through the pole by performing underground wiring work can be tension-stopped from above the outer sheath, and the instrument body that connected the power line to the pole When the power supply pole is attached, the power supply line can be easily stored, and the appliance body can be easily attached to the pole, so that a power pole excellent in workability can be provided.

[Brief description of the drawings]

FIG. 1 is a schematic diagram illustrating a power pole according to an embodiment of the present invention.

FIG. 2 is an exploded perspective view showing a pole of the power pole.

FIG. 3 is an exploded perspective view showing a base of a main body of the power pole.

FIG. 4 is an exploded perspective view showing an internal unit incorporated in the main body of the power pole.

FIG. 5 is an exploded perspective view showing a casing main body of the instrument main body of the power pole.

FIG. 6 is an exploded perspective view showing a casing lid of the instrument body of the power pole.

FIG. 7 is a circuit diagram showing an internal circuit of the power pole.

FIG. 8 is a perspective view showing an outdoor lighting fixture attached to the power pole.

FIG. 9 is a schematic diagram showing a state where an outdoor lighting device is attached to the power pole.

FIG. 10 is a schematic diagram illustrating a conventional power pole.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Power pole 2 Pole 20 Tension stop 24 Tension stop 3 Instrument body G Underground

Claims (1)

[Claims] 1. A power pole comprising a pole erected with its lower part buried in the ground and an instrument body provided at the tip of the pole, wherein a tension stopper for a power cable is provided near the tip of the pole. Power pole.