JP2575976Y2 - Seismic devices such as transformers - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an anti-seismic device such as a transformer or a shunt reactor, and more particularly to an anti-seismic device suitable for connecting a main body of a transformer or the like to a soundproof wall during transportation of the transformer or the like.

[0002]

2. Description of the Related Art A seismic device for a transformer or a shunt reactor (hereinafter, abbreviated as a transformer or the like) includes a transformer or the like with a vibration isolator interposed between the main body of the transformer and a soundproof wall. A fixing plate provided on the body of a vessel or the like is fitted into a bolt implanted in a soundproof wall, the fixing plate is fixed to the bolt during transportation, and a gap is provided between the bolt and the fixing plate during installation. And
This shields vibration during operation of a transformer or the like, and allows some shaking during an earthquake.

FIG. 2 is an explanatory view showing a transformer seismic device disclosed in Japanese Utility Model Publication No. 57-8171. FIG. 2 (a) shows a state at the time of transportation. In FIG. And a bolt 4 to which the fixing member 3 with the bottom 3A facing upward is screwed, and 4 is a main body such as a transformer placed between the soundproof wall 2 and the soundproof wall 5 through the transformer. The bolt 1 is fitted into a bolt hole 6A formed in a fixing plate 6 provided in a main body 4 of a container or the like. Reference numeral 7 denotes a second fixing member which has a bottom 7A at a position sandwiching the fixing plate 6 with the bottom 3A of the fixing member 3 and is screwed to the bolt 1, and one surface of the bottom 7A is connected to the bolt hole 6A. It has a boss portion 7B that fits without a gap and has an axial length shorter than the plate thickness of the fixing plate 6. The other surface of the bottom portion 7A is fitted with a gap into the bolt hole 6A with a gap. 6 has a boss 7C having an axial length longer than the plate thickness. 8 is a lock nut.

At the time of transportation, as shown in FIG. 2A, a boss portion 7B of a second fixing member 7 is fitted into a bolt hole 6A of a fixing plate 6, and is fixed by the second fixing member 7 and the fixing member 3. The body 6 such as a transformer is fixed to the soundproof wall 2 via the bolts 1 by tightening the plate 6.

At the time of installation, as shown in FIG. 2 (b), the fixing member 3 is lowered, and the boss 7C of the second fixing member 7 is fitted into the bolt hole 6A of the fixing plate 6 and tightened. A gap can be provided between the bolt and the bolt 1 in the vertical and horizontal directions.

As shown in FIG. 2A, the fixing member 3 and the second
With the fixing member 7, the fixing plate 6 is sandwiched between the bolts 1 or the second fixing member 7 is pulled out from the bolt 1, and the second fixing member 7 is turned upside down as shown in FIG. Although not shown in the drawings, the boss portion of the fixing member 3 is screwed into the bolt 1 and fastened to the lowered fixing member 3.
The bosses 7B and 7C of the second fixing member 7 are provided with four or six wrench hooks, respectively. FIG. 3 shows the boss 7B and the bolt hole 6 when the wrench is formed on four sides.
FIG.

[0007]

The fixing member and the second fixing member are both screw-processed, and the boss portion is formed with four or six wrench portions so that it is expensive. In addition, since a spanner hook is provided, the contact area between the fixing plate and the bolt hole is reduced, and the fixing plate is easily deformed.

The present invention provides an inexpensive and easy-to-operate transformer seismic device which does not reduce the contact area between the bolt hole of the fixing plate and the fixing member, and eliminates the screw processing and the processing of the spanner hook. The purpose is to provide.

[0009]

Means for solving the above-mentioned problems in the present invention are as follows. A main body such as a transformer is mounted on a soundproof wall via a vibration isolator, and a fixing plate provided on the main body is provided. In a seismic isolation device such as a transformer in which a bolt implanted in the soundproof wall is fitted and connected to a bolt hole, a fixing member screwed to the bolt with a washer welded to a nut on an upper side, and a very small A seat portion is provided at a position where the fixing plate is sandwiched between the washer of the fixing member and the washer of the fixing member, and one surface of the seat portion is fitted into a bolt hole of the fixing plate without a gap. A boss portion having an axial length shorter than the plate thickness of the fixing plate, and a boss having an axial length longer than the plate thickness of the fixing plate, the other surface being fitted into the bolt hole of the fixing plate with a gap. A second fixing member having a portion, and a nut for tightening the second fixing member. It is intended to comprise.

[0010]

In the transportation, a washer of a fixing member screwed to the bolt and a boss having an axial length shorter than the plate thickness of the fixing plate are fitted into the bolt hole of the fixing plate without any gap while being inserted into the bolt. The fixing plate is sandwiched between the fixing member and the seat of the second fixing member, and the fixing plate is fastened with a nut to fix the main body of the transformer or the like to the soundproof wall via bolts.

At the time of installation, the fixing member screwed to the bolt is lowered and loosely inserted into the bolt, and a boss having an axial length longer than the thickness of the fixing plate is provided with a gap in the bolt hole of the fixing plate. The fitted second fixing member is fastened to the fixing member with a nut, and the transformer main body and the soundproof wall are connected to each other with an appropriate gap in the vertical and horizontal directions.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to an embodiment shown in the drawings. The same parts as those in FIG. 2 are denoted by the same reference numerals, and description thereof will be omitted.

FIG. 1 shows an embodiment of the present invention, in which (a) is a partial sectional view at the time of transportation and (b) is a partial sectional view at the time of installation. In these figures, 9 is a washer welded to a standard nut 9A. A fixing member screwed to the bolt 1 with 9B facing up,
Reference numeral 10 denotes a second fixing member which is inserted into the bolt 1 with a slight gap, and a seat 10A is provided at a position sandwiching the fixing plate 6 with the washer 9B, and is fixed to one surface of the seat 10A. It is fitted into the bolt hole 6A of the plate 6 without any gap, and
A boss portion 10B having an axial length shorter than the plate thickness of the fixing plate 6, the other surface is fitted into the bolt hole 6A of the fixing plate 6 with an appropriate gap, and the axial length is longer than the plate thickness of the fixing plate 6. Boss part 1
0C is provided. Reference numeral 11 denotes a fastening nut.

At the time of transportation, the boss 10 of the second fixing member 10 is inserted into the bolt hole 6A of the fixing plate 6 as shown in FIG.
B, the fixing plate 6 is sandwiched between the seat 10A of the second fixing member 10 and the washer 9B of the fixing member 9, and the nut 11
, The main body 4 such as a transformer is fixed to the soundproof wall 2 via the bolt 1.

At the time of installation, as shown in FIG. 1B, the fixing member 9 is lowered, the boss portion 10C of the second fixing member 10 is inserted into the bolt hole 6A of the fixing plate 6, and the nut 11 is tightened. A gap can be provided between the fixing plate 6 and the bolt 1 in the up, down, front, rear, right and left directions, and the main body 4 such as a transformer is connected to the soundproof wall 2 while allowing a proper swing in all directions.

[0016]

[Effects of the Invention] The transformer anti-seismic device according to the present invention achieves complete fixation during transportation only by a simple operation of moving the fixing member up and down and reversing the fitting direction of the second fixing member. At the time of installation, it is possible to install an earthquake-resistant structure, to cut off vibration during operation, and to reduce the cost by eliminating the need for screw machining and machining of the spanner hooks. Various practical effects such as an improvement in workability can be achieved without omitting the screw of the second fixing member without reducing the contact area with the second fixing member.

[Brief description of the drawings]

FIG. 1 is an explanatory view of an embodiment of the present invention. (A) is a partial sectional view at the time of transportation. (B) is a partial sectional view at the time of installation.

FIG. 2 is an explanatory view of a conventional example. (A) is a partial sectional view at the time of transportation. (B) is a partial sectional view at the time of installation.

FIG. 3 is a sectional view taken along line AA of FIG. 2 (b).

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Bolt 2 ... Soundproof wall 4 ... Main body of transformer etc. 5 ... Vibration isolator 6 ... Fixing plate 6A ... Bolt hole 8 ... Lock nut 9 ... Fixing member 9A ... Standard nut 9B ... Washer 10 ... Second fixing member 10A: Seat 10B, 10C: Boss 11: Tightening nut

Claims (1)

(57) [Scope of request for utility model registration] 1. A body such as a transformer is mounted on a soundproof wall via a vibration isolator, and a bolt implanted in the soundproof wall is fitted into a bolt hole of a fixing plate provided on the body and connected. In a seismic device such as a transformer, the fixing member is screwed into the bolt with a washer welded to a nut on the upper side, and the bolt is fitted and inserted with a very small gap, and the washer of the fixing member is fixed by the washer. A seat portion is provided at a position sandwiching the plate, and one surface of the seat portion has a boss portion having an axial length shorter than the plate thickness of the fixed plate while being fitted into the bolt hole of the fixed plate without a gap, and A second fixing member comprising a boss portion having an axial length longer than the plate thickness of the fixing plate, the second fixing member being fitted into the bolt hole of the fixing plate with a gap on the surface thereof. An earthquake-resistant device such as a transformer, comprising a nut to be tightened.