JPH0114645B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an insulating support device, and more particularly to a device for insulating and supporting a load such as a bus bar in an electrical device on a vertical surface such as a wall surface.

Conventionally, in order to insulate and support objects such as busbars in electrical equipment such as switchboards or bus ducts to a grounding system such as a panel wall, as shown in Fig. 1,
At both ends of the cylindrical support body 1 made of synthetic resin,
An insulating insulator (insulation support device) constructed by embedding a plurality of mounting brackets 2 such that their extension directions are the same is connected to a fixture (such as a bolt) screwed into the mounting brackets 2. This is done by vertically fixing it to a grounding fixation system via a cable (not shown).

However, when insulating and supporting a supported object with an insulating support insulator, the insulating support insulator may be attached to a grounding and fixing system due to the electrical relationship of the supported object to the grounding and fixing system or due to the arrangement structure of the supported object in electrical equipment. In some cases, it becomes difficult to fix the insulating support insulator vertically to the ground fixing system, and the insulating support insulator must be fixed to the grounding fixing system with its longitudinal direction horizontal.

In such a case, the shear stress of the synthetic resin is about 1/10 of the vertical (compressive, tensile) stress, so it is recommended to increase the outer diameter of the insulator or install more mounting brackets. This has led to an increase in the size of the mold and the weight of the product due to its production.

The present invention was made in view of the above-mentioned problems, and its purpose is to make it possible to insulate and support a supported object and fix it to a vertical ground fixing system while utilizing the stress characteristics of synthetic resin. To provide an insulating support device. Hereinafter, embodiments of the present invention will be described in detail using the drawings from FIG. 2 onwards.

As shown in FIG. 2, FIG. 3, and FIG. 4, the insulating support device according to the present invention has a cylindrical support body 3 made of synthetic resin, which is provided on the outer periphery near both ends in a direction perpendicular to its longitudinal direction. The legs 3a are integrally protruded with a width comparable to the outer diameter thereof, and two mounting brackets 4 having screw holes 4a in the protruding direction are embedded in each leg 3a. It is composed of

Incidentally, a mounting fitting (both not shown) for mounting and fixing a supported object such as a bus bar is embedded in one end surface of the support body 3. Furthermore, the number of mounting brackets 4 buried in each leg 3a is not limited to two, but one.
Of course, the number may be three or more. Furthermore, in FIGS. 2 and 4, 5 indicates a vertical grounding system such as a side wall or bulkhead of electrical equipment;
In addition, in FIGS. 3 and 4, 6 indicates each leg portion 3a.
This is an escape groove provided on the mounting surface of the

5 and 6 are a front sectional view and a bottom view of a second embodiment of the insulating support device according to the present invention. While the support body 3 supporting the is solid,
A support body 7 for supporting an object to be supported is provided in a hollow shape.

That is, the insulating support device of the second embodiment stores an object to be supported, such as a vacuum interrupter, and insulates and supports it on a vertical grounding system (both not shown), and includes a support body 7 made of synthetic resin. are formed into a cylindrical shape with a bottom, and integrally protrude from the outer periphery near both ends of the support body 7 in a direction perpendicular to the longitudinal direction and with a width appropriately smaller than the outer diameter. and a screw hole 8a in the same direction as the protruding direction of each leg 7a.
It is constructed by embedding two mounting fittings 8 each having a diameter.

In addition, in FIGS. 5 and 6, 9 and 10 are terminal mounting brackets embedded in flange portions 7b and 7b formed by thickening the outer periphery near both ends of the support body 7, and are used to connect the support body 7 to the vacuum This is for attaching and fixing the terminal conductor of the interrupter, and screw holes 9a and 10a into which fixing tools such as bolts are screwed are provided, respectively. Reference numeral 11 denotes a hole provided in the bottom 7c of the support body 7, through which the movable electrode rod of the vacuum interrupter is inserted.

As described above, in the present invention, legs are integrally protruded from the outer periphery near both ends of a cylindrical or bottomed cylindrical support body made of synthetic resin, and at least one mounting bracket is embedded in each leg. Because it is a synthetic resin, the stress characteristics of the synthetic resin can be effectively utilized without increasing its weight, and supported objects such as busbars in electrical equipment can be easily insulated and supported in a vertical grounding system. It has the following effects:

[Brief explanation of drawings]

Figure 1 is a front cross-sectional view of a conventional insulating support device;
3 and 4 are respectively a front view, a side view and a bottom view of a first embodiment of an insulating support device according to the present invention, and FIGS. 5 and 6 are respectively a front view, a side view and a bottom view of a first embodiment of an insulating support device according to the present invention. FIG. 7 is a front sectional view and a bottom view of the second embodiment. 3...Support body, 3a...Legs, 4...Mounting metal fittings, 7...Supporting body, 7a...Legs, 8...Mounting metal fittings.

Claims (1)

[Claims] 1. An insulation characterized by having legs protruding integrally from the outer periphery near both ends of a cylindrical or bottomed cylindrical support body made of synthetic resin, and at least one mounting fitting embedded in each leg. Support device.