JPH026576Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a mounting bracket for insulator horns, which is used to detachably attach insulator horns such as lightning horns in which a current limiting element is connected to an arcing horn to a blocking device. It is something.

In order to prevent disconnection accidents due to follow-up arcs during lightning flashes, insulator devices are often equipped with horns for insulators, such as lightning horns with a current limiting element connected to an arcing horn. The development of mounting brackets for insulator horns, which enable accurate and easy attachment of horns to ground-side supports, is delayed, and the installation process is currently labor-intensive.

The present invention was developed in view of the current situation in order to easily attach horns for insulators to base metal fittings of electric wire supporting insulators.

That is, as shown in the illustrated embodiment, the present invention has a pair of semi-annular straps 3, 3' connected by hinge parts 4, 4' so as to be freely openable and closable, each extending outward from the other end. The pieces 1 and 1' are formed facing each other, and a claw part 7 is formed in a curved manner at the tip of one of the projecting pieces 1.
The bolt 10, the head of which is pivotally locked by the claw portion 7, is annularly tightened and fixed to the base metal fitting 27 of the wire support insulator 26. Further, one of the straps 3, 3' is provided with an arm portion 5 for supporting horns, and one of the annular edges of the straps 3, 3' is connected to the circular shape at the bottom of the base metal fitting 27, respectively. Inwardly curved edges 2, 2' are provided to substantially match the arcuate surfaces of the edges. Furthermore, the bolt 10 is provided with a guide arc surface 9 on its head, which is formed to substantially match the concave curved surface 8 of the claw portion 7.

In addition, 6 is a long hole for the bolt 10 formed in the claw part 7, 11 is a notch for engaging and disengaging the bolt 10 formed in the other overhanging piece 1', and 12 is a nut screwed onto the bolt 10. , 13 are attached to the bolt 10 in order to prevent the nut 12 from being separated from the bolt 10.
A retaining part 14 is provided at the tip of the overhanging piece 1, 1' on the side where the notch 11 is provided. Claw portion formed as necessary, 15,1
Reference numeral 5' indicates a through hole provided as necessary to reduce the weight of the straps 3, 3', and 16 indicates a washer.

In this structure, an insulator horn 23 such as a lightning horn with an arcing horn 21 connected to an intermediate electrode 22 at its upper end is connected to an arm 5 for supporting the horns by holding a ground electrode 24 at its lower end. If it is attached to the attachment hole 17 provided at the distal end, one of the semi-annular straps 3' on which the arm portion 5 is provided.
and the other band 3 are connected to each other by hinge parts 4, 4' so that they can be opened and closed, so that the parts together with the insulator horns 23 can be easily lifted onto the column without fear of accidentally dropping the parts. In addition, when installing the electric wire support insulator 26 on the pole, without assembling the straps, both the straps 3, 3' are opened freely from the hinge parts 4, 4', and then the third Figure, 4th
As shown in the figure, connect the straps 3, 3' to the ground arm 25.
The base metal fitting 2 to which the wire support insulator 26 is attached
7, so that the inwardly curved edges 2, 2' formed at the lower ends of both straps 3, 3' come into contact with the arcuate surface of the circular edge of the bottom of the base metal fitting 27 so as to be hooked thereon. When the legs are opened, the straps 3 and 3' will hold the base metal fitting 27, so if the bolt 10 located at the position shown by the dashed line in FIG. 5 is pivoted toward the notch 11, the bolt 10 is not only inserted through a long hole 6 provided at the front end of one of the straps 3 and 3' to reach the outward claw part 7, but also has a claw part 7 on its head. Since a guide arc surface 9 corresponding to the concave curved surface 8 of the base is formed, it moves smoothly and can be easily inserted into the notch 11. Therefore, the nut 1 threaded onto the bolt 10
The installation work can be completed easily by simply rotating the bolt 2, and since the washer 16 is locked to the claw part 7, the bolt 10 will not shift sideways or be pulled out even if external force is applied, and it can be installed accurately. A suitable mounting condition can be obtained.

Furthermore, the straps 3, 3' have curved edges 2, 3' at their lower ends.
2' is attached to the curved end of the lower end of the base metal fitting 27 and hooked, so the positioning is automatically performed and the holding force of the straps 3 and 3' to the base metal fitting 27 is slightly reduced. Even if it becomes loose, it will remain in a fixed position without sliding vertically or tilting, so you can omit the work of adjusting the aerial gap and maintain the aerial gap stably. There are also advantages. Therefore, when replacing the insulator horns, etc., if you want to replace the mounting bracket of the insulator horns of the present invention, the nut 1
2 is loosened and the bolt 10 is pivoted outward, the bolt 10, which was loosely inserted into the elongated hole 6 and engaged with the notch 11, will move so that the guide arc surface 9 of the head is aligned with the base of the claw part 7. Since it corresponds to the concave curved surface 8, the bolt 10 smoothly disengages from the notch 11 under the sliding movement of the concave curved surface 8 and the guide arc surface 9, and the slight screwing of the nut 12 is prevented. Since the bolt 10 can be engaged and detached at the same time, the removal work is also extremely easy.

Therefore, the present invention enables the installation of insulator horns on unstable pillars to be carried out safely in a short time, and also improves the accuracy of the installation. Coupled with the advantage that it can be provided at a low cost as it is lightweight, it has extremely great practical value.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway perspective view showing a first embodiment of the present invention, Fig. 2 is a partially cutaway perspective view showing a different aspect, and Fig. 3 is a part of an insulator device using the present invention. 4 is a partially cutaway side view, FIG. 5 is a partially cutaway plan view of the main part, and FIG. 6 is a partially cutaway plan view showing a second embodiment of the present invention. 1, 1': Overhanging piece part, 2, 2': Curved edge part, 3,
3': Strap, 5: Arm, 7: Claw, 8: Concave curved surface,
9: Guide arc surface, 10: Bolt, 26: Wire support insulator, 27: Base metal fitting.

Claims (1)

[Scope of utility model registration request] A pair of semi-annular straps 3, 3' are connected at one end so as to be openable and closable with hinge parts 4, 4', and projecting piece parts 1, 1' are formed facing outward at the other ends of the belts 3, 3', respectively.
It is a mounting bracket that is tightened and fixed in an annular manner to a base metal fitting 27 of a wire support insulator 26 by a bolt 10 whose head is pivotably locked by forming a claw portion 7 in a curved manner at the tip of one of the overhanging pieces 1. and said straps 3, 3'
An arm portion 5 for supporting horns is provided on one side, and one of the annular edges of the straps 3 and 3' is formed approximately in line with the arcuate surface of the circular edge of the bottom of the base metal fitting 27, respectively. and inwardly curved edges 2, 2'
The bolt 10 has the claw portion 7 on its head.
A mounting bracket for an insulator horn or the like, characterized in that a guide arc surface 9 is formed to substantially match the concave curved surface 8 of the insulator horn.