JPH0474927B2 - - Google Patents

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention provides a method for attaching a bar body made of barrier bars to the shape of an installation location such as the top of a steel tower for high-voltage power transmission and distribution. This invention relates to a bird damage prevention device configured so that the angle can be set and maintained at will.

[Conventional technology]

2. Description of the Related Art Bird damage preventers have been known in the past, which are used to prevent birds from flying into and coming into contact with lightning arresters installed at the tops of steel towers for high-voltage power transmission and distribution, thereby causing problems such as malfunctions.

[Problem to be solved by the invention]

However, although this type of lightning arrester can be installed in any position, such as vertically, horizontally, or deflected vertically, horizontally, or vertically, conventional bird damage arresters consider the installation angle of the barrier rod. Because the barrier rod is often installed in a fixed state without being fixed, the barrier rod often separates from the arrester during use, making it impossible to obtain the desired effect even though it is installed.
A serious issue has arisen.

Therefore, an object of the present invention is to provide a bird damage prevention device that solves these problems.

[Means to solve the problem]

In the bird damage prevention device of the present invention, a holding stand is removably attached to a base that is attached to a cross arm of a power transmission and distribution tower, and a pair of long support rods on the left and right sides of the holding stand are equipped with barrier rods. The proximal ends of the bar bodies are rotatably supported, and the support rods are fixedly maintained at arbitrary swing angles, and a single barrier bar is mounted on the upper surface of the holding table. It is composed of a plurality of radially arranged radially from each other.

[Effect]

Each rod body is supported by a retainer in pairs on the left and right and its base end is rotatably supported.The retainer and base are carried together or separated from each other with the support rods upright, and the base is attached to the steel tower. Install it next to the lightning arrester installed at the top, and attach the retainer to this base. Then, by one-touch operation, change the swing angle of each support rod so that it follows the surface of the lightning arrester, and when it is fixed, each barrier rod can be used while maintaining the optimal spacing relative to the lightning arrester. be able to.

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings. In the figure, reference numeral 1 denotes a barrier rod that is used as a single unit and has a sharpened tip and is shaped like a needle bar.

Reference numeral 2 denotes a rod body in which a plurality of barrier rods 4 are stood on a support rod 3 at different angles, and the barrier rods 4 are smaller than the barrier rods 1.

A cylindrical horizontal shaft 5 is fixed to the base end of the support rod 3. The horizontal shaft 5 has one end shaped like an arc, an uneven surface 6a on the outer periphery near the other end, and a support pin 7 protruding from the center of the other end.

8 is a bearing member having a shaft hole 9 in the center for pivoting the horizontal shaft 5, and is a half body 8 obtained by dividing a cylindrical body into two parts.
Dowels 10, 10 are placed near one end of the split end faces of a and 8b.
and dowel holes 11, 11 are provided oppositely, and are combined by fitting these together. The shaft hole 9 penetrates through one half body 8a, and has a blind hole shape with a lid on the arcuate side in the other half body 8b, and an uneven surface 6b that engages with the uneven surface 6a is formed on the inner peripheral surface of the hole. Furthermore, a pin hole 13 through which the support pin 7 is inserted is passed through the center of the blind lid part 12.

A notch 1 is provided on the divided end face side of the halves 8a and 8b, through which the support rod 3 can freely rotate and which regulates the maximum angle.
4 will be provided. Furthermore, a notch 15 into which a key 28 (to be described later) is inserted is formed on the outer peripheral surface of the half body 8a.

16 denotes each barrier bar 1 and each bar body 2,
2, that is, a holding base that can support the bearing members 8, 8, and is formed by being divided into an upper mold 16a and a lower mold 16b. Reference numeral 17 designates a base that is attached and fixed to a steel tower cross arm or the like to removably attach and support the holding base 16, and has tightening bolts (not shown) on the bottom surface.
A mounting plate 18 with a groove for sandwiching is vertically protruded, and a dovetail groove 19 that crosses in one direction is provided on the upper surface.

On the lower surface of the lower mold 16b of the holding table 16, a stand portion 20 that is inserted into the dovetail groove 19 is provided protrudingly, and on the upper surface, circular recessed portions 21 that support the lower portions of the left and right bearing members 8, 8 are provided. .
The bottoms of 1 and 21 are cut off to provide open cuts 24 and 24 through which the support rods 3 and 3 are interposed.

On the other hand, spaces 25, 25 corresponding to the recessed portions 21, 21 are provided in the lower part of the upper mold 16a of the holding table 16, and the notches 2 are provided on the upper surface and left and right side surfaces of the upper mold 16a.
Open cuts 26, 26 and 27, 27 with support rods 3, 3 interposed therebetween are provided in a communicating manner opposite to 4, 24. Furthermore, a key 28 is provided on the top surface of the upper mold 16a.
Arc-shaped grooves 29, 29 are formed into which the parts are movably inserted. The outer wall surfaces of these arcuate grooves 29, 29 have the same diameter as the side walls 22, 22 of the groove portions 21, 21, and have an uneven surface 3 similar to the uneven surfaces 23a, 23a.
0a, 30a, and these uneven surfaces 30a, 3
Support walls 31, 31 are vertically provided in the same arc shape along the lower end of 0a.

Then, uneven surfaces 23b and 30b are formed on both upper and lower ends of the outer surface of the key 28 to engage with the uneven surfaces 23a and 30a, respectively.

Furthermore, a total of seven insertion holes 32 into which the base end portion of the barrier bar 1 is inserted are provided on the upper surface of the upper mold 16a. As shown in FIG. 4, these insertion holes 32 are made to communicate with a shaft portion 32a protruding from the lower surface of the upper mold 16a and are inclined so that the seven barrier rods 1 are arranged radially with respect to each other. .

The upper mold 16a and the lower mold 16b are provided with screw holes 33, 33a in communication at the four corners, and screws 34 are inserted through these holes to connect them integrally.

Also, the dovetail groove 19 of the base 17 is inserted from the upper surface of the upper mold 16a to the lower mold 16b from the mounting plate 18.
A straight hole 35 is drilled to connect the holding table 16 and the base 17 by inserting and removably inserting a connecting pin 36 into the hole 35, and by pulling out the connecting pin 36, the holding table 16 can be handled independently. I'm trying to make it frog.

Next, an example of use of the bird damage prevention device of the present invention formed in this manner will be explained.

First, the holding stand 16 and the base 17 are separated, and the holding stand 16 is separated from the upper mold 16a and the lower mold 16b, and each concave portion 21, 2 of the lower mold 16b is separated.
1, insert the lower surfaces of the bearing members 8, 8 of each bar body 2, 2, cover with the upper die 16a, and screw each screw hole 33, 33.
A screw 34 is inserted into the hole and tightened to integrally connect the upper mold 16a and the lower mold 16b. In this state, the horizontal shafts 5, 5 at the base end of each bar body 2, 2 are freely pivoted in the shaft hole 9, and the support rod 3 is in the notch 1.
4 and the full width of the notches 26 and 27, the angle can be changed up and down, left and right, as if shaking the head.

Therefore, by positioning these support rods 3 while swinging them at a desired angle, and pushing down the key 28 facing the arcuate groove 29 from the chain line position in FIG. 6 to the solid line position, the key 28 will be The end surface formed in an arc shape of the horizontal shaft 5 is slid into contact with and pressed, and the horizontal shaft 5 is moved from the chain line to the position shown by the solid line in FIG. and support rod 3
The upper and lower opening angles of the key 28 are fixed at the set elevation, horizontal, or depression angles, and at the same time, the uneven surfaces 23b and 30b provided on the upper and lower ends of the back side of the key 28 are engaged with the opposing uneven surfaces 23a and 30a, respectively. Support rod 3
Make sure that the front-back direction of the machine is fixed as set.

In this way, the angles of the support rods 3, 3 for each bar body 2, 2 are determined according to the usage conditions, and then the barrier bar 1 is inserted into each insertion hole 32 provided on the upper surface of the holding table 16, respectively. , and further connect the connecting pin 3 to the straight hole 35.
6, the assembly is completed as shown in FIG.

When carrying or lifting onto the tower, each barrier bar should be
Once removed, the rod members 2, 2 are fixed with the support rods 3, 3 in an upright position, so that the protruding parts are small and easy to handle.

Figure 8 and subsequent figures show examples of actual usage conditions.
The mounting plate 18 of the base 17 is fixed and attached by bolting or the like, and each bar body 2 is attached to a long trunk insulator C with supporting rods 3, 3 horizontally arranged on the top of the steel tower A in a pair on the left and right. , C near the center of each arc phone D,
Set each support rod 3, 3 at a slightly elevated angle, and also at different angles in the front-rear direction on the left and right sides, so as to roughly follow the curve of D, and adjust to suit the usage conditions. It has been done.

In addition, the one shown in Fig. 9 is an example of use in which the long insulators C and C are arranged at an obtuse angle on the left and right sides, and the base 17 is attached to the double yoke E arranged at the top of the center. The mounting plates 18 of the long-stem insulators C, C are clamped and fixed, and each of the bar bodies 2, 2 forms an angle of depression so that the support rods 3, 3 follow the installation angle of the long-stem insulators C, C, respectively. It is adjusted so that it is parallel to the top surface of.

Furthermore, in the case shown in Fig. 10, the steel tower mounting bracket F is mounted on the top of the vertically installed long insulator C.
Fix the mounting plate 18 of the base 17 to each bar body 2,
2 is adjusted so that the support rods 3, 3 follow the arc horns D, D, which are arranged in an approximately eight-shape shape on the top of the long insulator C, by adjusting the depression angle so that they form two sides of an isosceles triangle, and This is an example of use in which arc horns D and D protruding from each other are kept at a predetermined distance and at parallel angles.

As is clear from these usage examples, in the bird damage prevention device according to the present invention, each rod body 2, 2 can be freely moved vertically and horizontally depending on the usage environment by supporting rods 3, 3. You can use it by changing the angle and adjusting it to the optimal condition.

In addition, under these conditions of use, for example, when performing maintenance and inspection of the lightning arrester or other construction work, the retainer 16 can be removed by removing the connecting pin 36 from the retainer 16.
Since the retainer 16 can be removed from the base 17, the retainer 16 can be temporarily removed while the bar bodies 2, 2 are opened at a predetermined angle, allowing construction work to be carried out without any hindrance, and reinstallation after the work is completed. It can be easily done with one touch, and the efficiency of construction work can be significantly improved.

〔Effect of the invention〕

As described above, the bird damage prevention device of the present invention has a bar body mainly consisting of a support rod having a forest of barrier bars supported on a holding base on a pair of left and right sides. Since the angle can be changed and it can be used in situations that match the installation environment of the lightning arrester, etc., it is possible to completely prevent accidents caused by birds flying into or coming into contact with the lightning arrester, etc. can.

Furthermore, since the holding stand is configured to be detachably attached to the base, installation on the steel tower and removal after installation can be done extremely easily, significantly improving ease of handling. It has the advantage of being able to

[Brief explanation of the drawing]

The figures relate to one embodiment of the present invention, and Fig. 1 is a perspective view, Fig. 2 is an enlarged perspective view of main parts, Fig. 3 is an exploded perspective view, and Fig. 4 is a bottom view of the mold on the holding table. Figure 5 is a vertical sectional view of the main parts, Figure 6 is an explanatory diagram of the action centered on the horizontal axis of the base of the bar body, Figure 7 is a perspective view of each support rod in an upright state, and Figures 8 to 8. FIG. 10 is an explanatory diagram of the usage state. 1, 4... Barrier bar material, 2, 2... Bar material body,
3, 3... Support rod, 16... Holding stand, 17... Base, 35... Straight hole, 36... Connecting pin, A...
Power transmission and distribution tower, B...arm.

Claims (1)

[Scope of Claims] 1. A holding stand is removably attached to a base that is attached to a cross arm of a power transmission and distribution tower, and a pair of long support rods on the left and right sides of the holding stand are lined with barrier rods. The base ends of the bar bodies are rotatably supported, and these bar bodies keep the support rods fixed at arbitrary swing angles, and a plurality of individual barrier bars are mounted on the upper surface of the holding table. A bird damage prevention device characterized by being provided radially from each other. 2. The bird damage prevention device according to claim 1, wherein a straight hole is formed extending from the upper surface of the holding stand to the base, and a connecting pin is removably inserted into the straight hole.