JPS603568Y2 - Floor transformer fixing device - Google Patents

Description

[Detailed explanation of the idea] This proposal relates to a fixing device for a transformer installed on the floor.

In general, indoor power distribution transformers are installed on the floor with anti-vibration rubber in order to prevent minute vibrations generated by the transformer from being transmitted to the floor.

However, it does not serve as earthquake resistance.

In view of the above points, the present invention aims to provide a device for seismically fixing a floor-mounted transformer.

That is, the transformer 2 installed on the floor F via the vibration absorbing member 1
Two adjacent pillars 3 of the four vertical pillars 3a to 3d erected around the
A cross beam 4.4 is installed between a, 3b, 3c, and aci so as to be movable up and down, and a transformer support arm 5 is installed between the left and right cross beams 4.4.
, the cross beam 4 was attached via the vibration absorbing members 6a and 6b, and the transformer support arm 5 was attached to the connecting fitting 8 attached between the existing upper and lower hanger seats 7, 7 of the transformer 2. This is the summary.

In the illustrated example, transformers 2a and 2b of different capacities are arranged in a row on a floor F with a vibration isolating rubber 1 interposed therebetween, and steel pipe vertical columns 3a to 3d are attached to the four corners around the transformer 2a with clamps 9 at the lower ends of the floor F. Stand on your face.

A steel pipe cross beam 4 is attached between the vertical columns 3a, 3by 3cw 3ds using a right angle bracket 10 and a U-shaped bolt 11 so that the height can be adjusted freely.

In the illustrated example, the transformer support arm 5 is an angle, and the fifth
As shown in the figure, the bracket 12 is attached to the cross beam 4 with bolts and nuts so that it can move freely back and forth.

Numerals 14 and 15 are bolts and nuts for attaching the cross beam 4 to the arm support bracket 12.

Between the bracket 12 and the support arm 5, the bolt 14
Vibration absorbing members 6a and 6b are arranged around the arm 5 and the washer 13 so that slight vibrations of the transformer 2a are absorbed by the vertical column 3a.
(3b, 3c, 3d) to prevent it from being transmitted to the floor F.

The vibration absorbing members 6a, 6b may be provided between the support arm 5 and the connecting fitting 8 in the same manner as described above.

In addition, in order to prevent unevenness in work by installing a split pin 18 and having the worker tighten the rubber too much or not enough on site, tightening the nut until it reaches the pin hole will result in proper tightening, and the characteristics of the anti-vibration rubber will be improved. It also works to prevent the nut from loosening.

The above-mentioned arm support bracket 12 consists of two split pieces that hold the horizontal beam 4, and the solid line in FIG. 5 indicates the left end vertical column 3a in FIG.
, 3b, and the chain lines indicate the brackets on both sides attached to the crossbeam 4 between the central vertical columns 3cy3d in FIG.

Insert arm tie 16 into the lower tightening part, and arm tie 1
6 is attached to the arm tie band 17 attached to the vertical column 3a (3b=3C, 3d).

By moving the support arm 5 back and forth with respect to the cross beam 4, the connecting fitting 8 is attached.
By connecting the brackets 12 to the cross beams 4, the transformer 2a is supported by the four pillars, and is able to withstand a considerable amount of earthquake vibration.

When several large and small transformers 2a and 2b are installed on the floor F by providing several mounting holes 8a in the connecting fitting 8, each transformer can be supported by selecting the long holes 8a. Arm 5
If the mounting heights are made the same, a common cross beam 4 will suffice, and the number of cross beams can be reduced.

Further, as shown in the illustrated example, each component can be easily assembled using only a spanner by connecting each component with bolts and nuts.

Since the present invention is constructed as described above, the rear side of the transformer is fixed to the vertical column with metal fittings as shown in Fig. 3, and it is safe because it will not fall during an earthquake.

[Brief explanation of the drawing]

Figure 1 is a rear view of the proposed device, Figure 2 is its side view, and Figure 3 is a rear view of the proposed device.
The figure is a plan view, FIG. 4 is an exploded perspective view of various parts constituting the present invention, and FIG. 5 is a sectional view of the arm support bracket. 1.6a, 6b are vibration absorbing members, 2 is a transformer, 3a to 3
b is the vertical column, 4 is the horizontal beam, 5 is the transformer support arm, 7 is the hanger seat, 8 is the connecting fitting, and F is the floor.

Claims (1)

[Scope of utility model registration request] A horizontal beam is attached so that it can move up and down between two adjacent two of the four vertical columns erected around the transformer installed on the floor via a vibration absorbing member, and the transformer support arms are attached to the left and right cross beams using the vibration absorbing member. The above-mentioned transformer support arm is attached to the connecting fittings installed between the existing upper and lower hanger seats on the transformer.