JPS6345800Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improvement of a damper used by being attached to an overhead power transmission line.

As shown in Fig. 1, the conventional damper has a support rod 21 or a steel stranded wire fixed to the base end, weights 22, 22 attached to both ends, and a hinge pin 2 at the tip of the curved part.
4, the clamp body 20 is formed by rotatably connecting the clamp cap 23. The armarod 26 is wound around the overhead power transmission line C, and the curved part of the clamp body 20 is placed on the armourod 26, and the clamp body 20 is held by the cap 23. The free end was tightened to the main body 20 with bolts 25 and suspended from the power transmission line C. However, the clamp main body 20, which weighs several kilograms to several tens of kilograms, was hooked onto the power transmission line C, and the clamp cap 23 was suspended. Until the power line is gripped by the curved part and the bolts are tightened, the clamp body must be supported by hand, which not only makes working at height extremely difficult and dangerous, but also requires the use of heavy weights 22, 22. There were drawbacks such as corona being easily generated from both ends of the tube.

The present invention has been made for the purpose of eliminating the above-mentioned drawbacks, and an embodiment illustrating the same will be described below. In Figs. 2 to 4, 1 is a clamp body, and the base end thereof has a bolt insertion hole. As shown in FIG. 4, a clamp cap 4 is rotatably connected by a hinge pin 5 to the tip of a curved portion having a locking groove 2 and a locking groove 2, and is hooked onto a power transmission line C. As shown in FIG. Reference numeral 6 denotes a tightening bolt for tightening and fixing the free end of the clamp cap 4, which is rotatably fixed to the clamp body 1, to the body 1. Tighten the overhead power transmission line C held by the 7, 7 is an aluminum or iron hook with a vibration-proof rubber 8 fitted to the curved end of the tip to be hooked to the power transmission line C, and a bolt insertion hole 9 drilled at the base end; 10 is a locking plate having a bolt insertion hole 12; 11 is an upright spherical weight, 13 and 14 are bolts and nuts, and the bolts 13 and nuts 14 fit the locking plate 11 into the locking groove 2 and the hooks 7, 7 that abut on both sides of the clamp body 1. The attached spherical weight 10 is fixed to the clamp body, and the tip of the bolt 13 is crimped to the nut 14 to prevent loosening. Note that 1a is a V-shaped groove formed at the base end of the clamp body 1, and 7a is a V-shaped protrusion protruding from the base end of the hooks 7, 7, which is provided for positioning the hooks 7, 7 on the clamp body 1. It is something that To attach the damper of the present invention constructed in this way to the overhead power transmission line C, loosen the tightening bolt 6 and remove the clamp cap 4 which is fixed to the main body 1.
After hanging the clamp body 1 by hooking the curved parts of the hooks 7, 7 onto the overhead power transmission line C in the open state,
As shown in FIG. 2, close the clamp cap 4, grip the power transmission line C between its curved part and the curved part of the main body 1, and screw the bolt 6 threaded into the free end of the cap 4 into the screw hole of the main body 1. and attach it to power transmission line C. By installing in this way, the hooks 7, 7
is fixed to the overhead power transmission line C in a state in which vibration isolating rubbers 8, 8 fitted to the curved portion are in close contact with the overhead power transmission line C. Therefore, according to the present invention, the above-mentioned clamp body 1 may be attached to the armarod wrapped around the overhead power transmission line C;
By fitting the anti-vibration rubber 8 to the hooks 7, 7, the vibration stress generated in the clamp body 1 can be reduced and alleviated, so it is also possible to attach it directly to the overhead power transmission line C without winding the Armarod. .

The present invention is as described above, and includes a bolt insertion hole 3 and a locking groove 2 at the base end, and a clamp cap 4 connected to the tip of the curved part by a hinge pin 5 on both sides of the clamp body 1 and the locking groove 2. A bolt 13 is attached to a hook 7, 7 having a vibration-proofing rubber 8 fitted to the curved portion and having a bolt insertion hole 9 bored at the base end, and a spherical weight 10 having a locking plate 11 having a bolt insertion hole 12 erected thereon. By fixing it with the nut 14 to form a damper, after hooking the hooks 7, 7 to the overhead power transmission line C and suspending the clamp body 1, the curved part of the body 1 and the clamp cap 4 connect the electric wire C. By grasping the cap and tightening the free end of the cap 4 to the main body 1 via the bolt 6, it can be easily fixed to the overhead power transmission line C, making installation work at high places easy and safe. Moreover, since the weight 10 is spherical, not only can the generation of corona be effectively prevented, but also the vibration stress generated in the clamp body 1 is reduced and alleviated by fitting the vibration isolating rubber 8 to the hooks 7, 7. It has excellent practical effects such as being able to directly attach Armarod to the overhead power transmission line C without winding it.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram showing a conventional damper, FIG. 2 is an explanatory diagram showing an embodiment of the present invention, FIG. 3 is an exploded explanatory diagram, and FIG. 4 is an enlarged explanatory diagram of the clamp body. 1... Clamp body, 2... Locking groove, 3... Bolt insertion hole, 4... Clamp cap, 5... Hinge pin, 6... Bolt, 7... Hook, 8...
Anti-vibration rubber, 9... Bolt insertion hole, 10... Spherical weight, 11... Locking plate, 12... Bolt insertion hole, 1
3...Boruto, 14...Natsuto.

Claims (1)

[Scope of utility model registration request] A clamp body 1 has a clamp cap 4 connected to the end of the curved part to be hooked to a power transmission line by a hinge pin 5, and a bolt insertion hole 3 and a locking groove 2 provided at the base end.
, a pair of hooks 7, 7, each having a vibration-proofing rubber 8 fitted to the curved portion to be hooked to a power transmission line and having a bolt insertion hole 9 drilled at the base end, and a locking plate 1 having a bolt insertion hole 12.
The hooks 7, 7 that abut on both sides of the clamp body 1 and the locking plate 11 of the spherical weight 10 fitted in the locking groove 2 are connected to bolts 13. A damper characterized in that it is tightened and fixed with a nut 14.