JPH0595014U - Stopper device for transportation of electric equipment and stopper device for earthquake resistance - Google Patents

Abstract

(57) [Summary] (Correction) [Purpose] To simplify the installation and removal of transportation and seismic stopper devices. [Structure] A stopper device is provided near the anti-vibration rubber 1.
The stopper device forms a bolt 4 on the clamp 2 by passing a washer arranged on the lower surface of the base 3, a round hole 5 formed on the base 3, and a nut 7 arranged between the lower surface of the clamp 2 and the upper surface of the base 3 respectively. It is screwed into the screw hole portion 6. Tighten the nut 7 to the base 3 side for transportation, and conversely tighten it to the clamp 2 side for earthquake resistance.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a stopper device for transportation and seismic resistance of electric equipment.

[0002]

[Prior Art]

 For example, the transportation structure in the state of a dry type transformer with vibration proof rubber attached is shown in Figures 3 (a) and 3 (b). When the anti-vibration rubber 1 is transported with it attached to the dry type transformer body (hereinafter referred to as the transformer body), the transformer body will be horizontal and vertical due to the flexibility (elasticity) of the anti-vibration rubber 1 and the transportation acceleration. Receive the power of. At this time, the anti-vibration rubber 1 attached between the clamp 2 of the transformer main body and the base 3 installed on the floor has a tensile force or a compression force due to the overturning moment with the anti-vibration rubber 1 attachment surface of the base 3 as a fulcrum. Moreover, shear force is applied by the force in the horizontal direction. These external forces applied to the anti-vibration rubber 1 are much larger than the external forces that the anti-vibration rubber 1 receives during an earthquake, so there is a risk of damage, and the external forces applied to the anti-vibration rubber 1 cause the transformer itself to tilt. However, there is a risk of falling. In order to prevent these, a stopper device for transportation is provided in the vicinity of the anti-vibration rubber 1. This stopper device is composed of a hexagon bolt with washer 4 and a spacer 8. By inserting the hexagon bolt with washer 4 through the clamp 2 and the spacer 8 and screwing it into the screw hole portion 6 of the base 3, the bolt is tightened. The structure in which the clamp 2 and the base 3 are integrated so that an external force is not applied to the anti-vibration rubber 1 is adopted.

[0003]

[Problems to be solved by the device]

 However, in order to integrate the clamp 2 and the base 3, it is necessary to completely insert the spacer 8 into the space between them and completely eliminate the flexibility of the vibration isolating rubber 1. The amount of deflection of the anti-vibration rubber 1 is determined by its static spring constant and the weight of the transformer, but since both of them change variously, the amount of deflection of the anti-vibration rubber 1 does not become constant, so the clamp 2 The gap between the base 3 and the base 3 also changes each time, and the thickness of the spacer 8 cannot be fixed. Therefore, although a plurality of thin spacers 8 are used in combination, there is a problem in that it is very difficult to insert the spacers 8 without a gap. Also, the spacer 8 must be removed when the transformer is installed on site and configured for earthquake resistance, and if the compression force applied to the anti-vibration rubber 1 causes fatigue, the spacer 8 must be removed. However, there is a problem that the transformer's own weight is added and it takes a lot of time to remove it.

The present invention has been made to solve the above-mentioned drawbacks, and an object thereof is to simplify the work of mounting and removing the transportation and seismic stopper devices in an electric device equipped with a vibration-proof rubber. .

[0005]

[Means for Solving the Problems]

 The transportation stopper device of the present invention is one in which a vibration-proof rubber is inserted between the clamp of the electric equipment body and the base installed on the floor surface, and the transportation stopper device is provided in the vicinity of this vibration-proof rubber. A bolt was formed on the clamp by passing a washer arranged on the lower surface of the base, a round hole formed on the base, and a nut arranged between the lower surface of the clamp and the upper surface of the base, respectively, through the transport stopper device. It is characterized in that it is screwed into a screw hole portion and the base is fixed by the head of the bolt and the nut. Also, the nut is located apart from the upper surface of the base to form a seismic resistant stopper device.

[0006]

[Action]

 In the transport stopper device of the present invention, the clamp and the base are integrated with each other by screwing the bolt into the screw hole of the clamp until the flat washer and the base come into close contact, and then tightening the nut to the base. It As a result, the external force generated during transportation can be received by the stopper device.

[0007]

【Example】

 An embodiment of the present invention will be described below with reference to FIGS. 1 (a) and 1 (b) and FIGS. 2 (a) and 2 (b).

In FIG. 1, reference numeral 1 denotes an anti-vibration rubber, which is inserted between the lower surface of the clamp 2 of the transformer body and the upper surface of the base 3 installed on the floor. A hexagonal bolt 4 with a washer having a flat washer 4a fixed to the inside of the bolt head by welding has a round hole 5 provided on the upper surface of the base 3, a screw hole 6 on the lower surface of the clamp 2, and the clamp 2 and the base 3. The hexagon bolts 4 with washers are detachably attached to each of the nuts 7 arranged between them. The bolt tip ends penetrate from the upper surface of the base 3 to the lower surface of the clamp 2.

In the above structure, in order to function as a stopper device for transporting the transformer, the hexagon bolt with washer 4 is screwed in until the upper surface of the washer comes into close contact with the lower surface of the upper surface of the base 3, and then the nut 7 is attached. By tightening on the upper surface of the base 3, the clamp 2, the hexagon bolt 4 with washer, the hexagon bolt 4 with washer, the nut 7, and the base 3 are screwed together, so that the clamp 2 and the base 3 are integrated. As a result, the external force generated during transportation can be received by the stopper device.

On the other hand, in order to install the transformer on site and make it function as an earthquake-proof stopper device for the transformer, as shown in FIG. 2, after loosening the nut 7, loosen the hexagon bolt 4 with washer, A gap of about 2 to 3 is provided between the upper surface of the washer and the lower surface of the upper surface of the base 3. In this state, by tightening the nut 7 to the lower surface of the lower surface of the clamp 2, there is no metal contact portion between the clamp 2 and the base 3, and the elastic coupling is achieved through the vibration isolating rubber 1.

As described above, according to this embodiment, since it is not necessary to interpose a spacer between the clamp of the transformer body and the base as in the conventional case, the work of fixing and releasing the clamp and the base is easy. Moreover, it is possible to easily change from a stopper device for transportation to a stopper device for earthquake resistance.

[0012]

[Effect of the device]

 Since the transport and seismic stopper device of the present invention has a structure in which the spacer and other inclusions are not brought into close contact with the clamp of the electric device body and the base, it has the effect of facilitating its mounting and dismounting operations.

[Brief description of drawings]

FIG. 1 shows an embodiment of a stopper device for transportation of electric equipment according to the present invention, (a) is a front view of a transportation state,
(B) Side view

2A and 2B show an embodiment of a seismic resistant stopper device for an electric device according to the present invention, in which FIG. 2A is a front view and FIG.

FIG. 3 shows a conventional transportation stopper device for electric equipment,
(A) is a front view of the transportation state, (b) is a side view thereof

[Explanation of symbols]

1 is an anti-vibration rubber, 2 is a clamp, 3 is a base, 4 is a hexagon bolt with a washer, 4a is a washer, 5 is a round hole, 6 is a screw hole portion, 7
Is a nut, and 8 is a spacer.

Claims (3)

[Scope of utility model registration request] 1. A transportation stopper device comprising a vibration-proof rubber inserted between a clamp of an electric device body and a base installed on a floor surface, and a transportation stopper device provided near the vibration-proof rubber. Through a washer arranged on the lower surface of the base, a round hole formed in the base, and a nut arranged between the lower surface of the clamp and the upper surface of the base, and the bolt is screwed into the screw hole portion formed in the clamp. A stopper device for transporting electric equipment, characterized in that the base of the bolt is fixed to the base by the nut. 2. A transportation stopper device in which a vibration-proof rubber is inserted between a clamp of an electric device main body and a base installed on a floor surface, and a vibration-proof stopper device is provided in the vicinity of the vibration-proof rubber. Through a washer arranged on the lower surface of the base, a round hole formed in the base, and a nut arranged between the lower surface of the clamp and the upper surface of the base, and the bolt is screwed into the screw hole portion formed in the clamp. A seismic stopper device for an electric device, wherein the nut is located away from the upper surface of the base. 3. A transport stopper device and an earthquake resistant stopper device for an electric device according to claim 1, wherein a washer is fixed to a head portion of the bolt.