JPH0733548Y2 - Flying bird prevention equipment - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a flying bird prevention device, and more specifically, more easily and reliably for an overhead line such as a ground line of a high-voltage transmission tower, for example. The present invention relates to a flying bird prevention device capable of attaching a bird damage prevention wire.

[Conventional technology]

Overhead line of high-voltage power transmission tower, in particular, ground line (overhead ground line)
Since it is installed on the top of a steel tower for lightning protection, it becomes a good stopping place for birds such as starlings, and in particular, it often stops at the ground line near the steel tower where the ground line does not sway.

However, there is no problem as long as it stops, but the bird that stopped does not matter, it does not matter where it is, so the dung adheres to the high voltage transmission line stretched below. There are problems that the power transmission line is insulated and the tower is dirty, the laundry hanging on the private house under the line and the parked car are dirty, and the rain gutter of the private house is clogged.

Therefore, in recent years, in order to solve this problem, a bird damage prevention thin wire has been stretched slightly above the ground line in parallel with the ground line. According to this means, the thin wire is literally too thin to be grasped by the feet of birds and cannot be stopped, and eventually it cannot be stopped on the ground line either, thereby preventing the above-mentioned power transmission accident or contamination of the tower. You can do it.

And, the means for stretching the above-mentioned thin wire for bird damage prevention is usually a worker who rides on a gondola hung on the lower transmission line and attaches to the ground wire at regular intervals or in pairs, for attaching the thin wire. The thin wire for bird damage prevention was stretched by such means as fixing the fixing metal of No. 2 and stretching the thin wire through the protrusion of the fixing metal (see Japanese Utility Model Publication No. 62-14924).

[Problems to be solved by the invention]

However, the conventional method of laying a thin wire for bird damage prevention is a method of directly fixing the metal fittings for laying the thin wire to the ground wire, so after the worker hangs the gondola on the power transmission line,
Riding on the gondola, fixing the metal fittings one by one, and then manually laying thin wires, the tensioning work is not only troublesome, but also the power transmission must be stopped during the work. There is.

Therefore, the present invention was devised in response to the above-mentioned problems, and the purpose thereof is to abolish the means for fixing the metal fittings for arranging the thin wire to the overhead wire such as the ground wire,
It is an object of the present invention to provide a flying bird prevention device capable of easily and surely laying a bird damage prevention line above an overhead line from a steel tower and performing a work of tensioning the line while transmitting power.

[Means for solving problems]

Further, the flying bird prevention device of the present invention as a means for achieving the above object is a flying bird prevention device for preventing birds from flying to an overhead line such as a ground line of a high-voltage power transmission tower. It has a plurality of openable and closable ring-shaped bodies for mounting, which are swingably and laterally movably mounted to each other. If a thin wire for preventing bird damage is stretched between the upper and lower parts of the mounting openable and closable ring, the thin wire for preventing bird damage can be protected by an external force such as a bird when no external force is applied to the bird. When the thin wire is positioned above the overhead wire due to the weight of the weight bar and a bird flies to the overhead wire and an external force is applied to the bird damage prevention thin wire, the bird damage prevention thin wire is attached to the overhead wire. It is configured to swing relative to.

[Action]

A plurality of the flying bird prevention devices of the present invention are prepared, and the worker carries them up to the overhead wire portion such as the ground wire of the steel tower, and first, the overhead wire is attached to the openable and closable annular body at one end of the weight rod. Then, the openable ring-shaped body for mounting on the other end side is similarly opened to insert the catenary into the ring-shaped body by the mounting means, and then the ring-shaped body is made into a closed ring. Then, the annular body is in a non-fixed state to the catenary wire, retains a loosely attached state, and the weight bar hangs in parallel to the catenary wire through the closed rings at both ends, The bird damage prevention line stretched between the protrusions on the upper part of the closed ring is also stretched in parallel with the ground line at the upper position of the overhead line.

Therefore, the operator manually pushes the device slightly forward of the overhead wire to move it, and then other devices are operated in the same manner as above.
You can hang it on the overhead wire and push it forward,
It is possible to sequentially attach a plurality of the appliances to the overhead wire in the same manner as above. In general, one end of the rope is fixed to the first device and the rope is passed through the openable ring for attachment each time a plurality of devices are attached to the overhead wire. The rope is pulled toward you so that the last device is brought into contact with the overhead line attachment part of the tower.

As described above, when this device is mounted on the overhead wire, when a bird flies down in order to stop on the overhead wire, the device with the bird damage prevention wire rotates and becomes unstable, eventually,
It acts so that it cannot stop on the overhead line. Also,
After the bird escapes, the gravity of the weight bar naturally restores the original condition.
As described above, it works so that the work can be performed while sitting on the steel tower portion to which the overhead wire is attached.

〔Example〕

Embodiments embodying the present invention will be described below with reference to the drawings.

Here, FIGS. 1 to 4 show an embodiment of the present invention, FIG. 1 is a front view in which the device of the present invention is attached to a ground wire, FIG. 2 is a side view of FIG. 1, and FIG. 2 is an enlarged side view of portion A in FIG. 2, and FIG. 4 is an enlarged plan view of portion B in FIG.

The flying bird prevention device in the present embodiment is a specific example when used as a bird damage prevention device in a high voltage transmission tower,
It is roughly divided into a weight bar 1, an openable / closable annular body 2 for mounting, and a bird damage prevention thin wire (bird damage prevention wire) 3.

The weight rod 1 is made of metal and is an ordinary square bar having a length of about 1 m and a weight of about 400 g, and has bolt holes 1a at both ends thereof.

The mounting openable / closable annular body 2 is provided in a pair at both ends of the weight rod 1, and the annular body 2 is a rectangular plate halfway,
The members 2a and 2b formed in a semi-arcuate shape are tied together at both ends of the weight rod 1 from both sides, and the members 2a and 2b are joined by bolts and nuts 4 with the weight rod 1 interposed therein. In addition, the upper tie plate portion 2d is also joined by the bolts and nuts 4 to form the ring 2c. One member 2b of the members 2a and 2b extends further upward from the interlocking flat plate portion 2d to form a projecting piece 5, and the projecting piece 5 is also provided with a bolt hole.

The bird damage prevention thin wire 3 is a wire having terminals 7 having holes 6 as shown in FIG. 4 at both ends, and the surface is protected by a vinyl tube. The thin wire 3 for preventing bird damage is fixed and stretched between the projecting pieces 5 and 5 of the member 2b of the openable ring 2 via the terminals 7 and 7 at both ends with bolts and nuts, respectively. The thin wire also includes a linear material (linear body).

And the flying bird prevention device of this embodiment, in total weight,
Since it weighs about 550 g, putting 20 to 30 pieces on the back does not burden the operator. Therefore,
Carry this device on your back, carry 20 to 30 pieces in the back, carry it to the ground line part at the top of the tower, and tie the flat plate part 2d of the members 2a, 2b of the openable ring 2 of the weight bar 1 with bolts and nuts. 4, remove ring 4, open ring 2c, insert ground wire 8,
After that, the members 2a and 2b are again tyed together, tightened and joined with the bolts and nuts 4 to form the ring 2c, and then the other annular body 2 is opened in the same manner as described above and the ground wire 8 is inserted.
2a and 2b are rehugged, and bolts and nuts 4 are tightened and joined to form ring 2c. Then, the weight bar 1 hangs on the ground line 8 via the rings 2c, 2c at both ends in parallel with the ground line 8 and is stretched between the projecting pieces 5, 6 at the upper position of the ring 2. Fine wire 3 also ground wire 8
At the upper position, it is stretched in parallel with the ground line 8. The annular body 2 is attached to the ground wire 8 in a non-fixed state.

Since the annular body 2 is attached to the ground wire 8 in a non-fixed state and can be moved left and right along the ground wire 8, the operator can move the device by pushing a little in front of the ground wire 8 by hand. . Next, another device is attached to the ground wire 8 by hanging in the same manner as above, and pushed forward, and a plurality of this device is sequentially attached to the ground wire 8 in the same manner as described above. In a typical embodiment, to the left and right of the tower
About 50 pieces are sequentially installed, that is, the ground wire 8 acts so as to protect birds from damage by the thin wire 3 near 50 m near the steel tower.

One end of a Kevlar rope (not shown, a normal rope may be used) is fixed to the first device, and each time a plurality of devices are sequentially attached to the ground wire 8, the Kevlar rope is placed inside the annular body 2. Finally, pull the Kevlar rope toward you and tie it to the steel tower. Then, the final device is brought into contact with the ground wire mounting portion of the steel tower, and the device does not move along the ground wire 8 due to external force. If any of the devices breaks down or needs to be removed, the Kevlar rope is pulled to the hand so that the broken device can be collected.

When the thin wire 3 is stretched on the ground wire 8 as described above, a bird that descends to stop at the ground wire 8 will grasp the thin wire 3 with its foot, and when it stops, the openable ring 2 will
It is attached so that it can rotate and rotate around the ground wire 8,
The device itself rotates along the ground line 8 and eventually acts so that it cannot stop. At this time, the instrument swings due to the external force of the bird's feet, but after a few degrees of swinging, it naturally recovers to its original state due to the gravity of the weight rod 1 (if it is firmly tightened by the rope, it will shake. There is little movement). Further, even if the wind blows, there are many openings, so that the increase in wind pressure is reduced. As described above, it is possible to perform the mounting work while sitting at the steel tower portion to which the ground wire 8 is attached.

It should be noted that the present invention is not limited to the above-described embodiments, and it is obvious that the present invention can be modified and implemented without changing the gist of the present invention. By the way, the openable ring body for mounting is
For example, it may be an annular body having a clip-like shape. In addition, a ring body or the like may be interposed in the middle portion of the bird damage prevention wire. Furthermore, in the above-described embodiment, the case where the device is used as a bird damage prevention device in a high-voltage power transmission tower has been described, but it is obvious that it can be used as a bird damage prevention device in other various overhead lines.

[Effect of device]

As is apparent from the above description, according to the flying bird prevention device of the present invention, the openable / closable mounting annular body to be mounted on the overhead wire such as the ground wire is connected by the weight bar parallel to the overhead wire.
Since the annular body is rotatable (swingable) around the overhead wire and can be moved left and right along the overhead wire, it is not necessary to fix the annular body to the overhead wire, and work is carried on a gondola or the like. There is no need, you can easily and reliably lay a thin wire above the overhead line while sitting on the tower, and there is no need to stop power transmission, and the gondola itself is not necessary. . In addition, it also has an effect that the danger such as an electric accident can be realized. Further, it has an effect that the attaching work can be easily performed even in a place where people cannot go.

[Brief description of drawings]

1 to 4 show an embodiment of the present invention, FIG. 1 is a front view of the ground wire with the device of the present invention attached, FIG. 2 is a side view of FIG. 1, and FIG. An enlarged side view of part A in the figure,
FIG. 4 is an explanatory view of the connecting structure between the bird damage preventing fine wire and the projecting piece, and is a plan view in which the portion B in FIG. 1 is enlarged. 1 ... Weight rod, 2 ... Openable ring for mounting, 3 ... Fine wire for bird damage prevention, 2a, 2b ... Member, 2c ... Ring, 2d ...
Tying flat plate part, 4 ... Bolts, nuts, 5 ... Projection pieces, 8 ... Ground wire (overhead wire)

Claims (1)

[Scope of utility model registration request] 1. A flying bird prevention device for preventing birds from flying into an overhead line such as a ground line of a high-voltage power transmission tower, wherein a plurality of mounting openings for swinging and left-right movement are attached to the overhead line. A flexible annular body, with the annular parts of the mounting openable ring-shaped body facing each other, the lower parts thereof are connected by weight rods parallel to the overhead wire, and the upper part of the mounting openable ring-shaped object is connected. When a thin wire for preventing bird damage is stretched over the wire, and when external force such as a bird is not applied to the thin wire for preventing bird damage, the thin wire for preventing bird damage is located above the overhead wire due to the weight of the weight rod. A flying bird prevention device characterized in that, when a bird flies to the overhead wire and an external force is applied to the bird damage prevention thin wire, the bird damage prevention thin wire swings with respect to the overhead wire.