JPH0811009Y2 - Control box for switch - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a switch operating box in which a box is installed on a pedestal and a connecting mechanism crankcase is present on the box.

[Prior Art] In a conventional operation box for a switch of this type, a box body 2 is installed on a pedestal 1 as shown in FIGS. 4 and 5.
In the box body 2, an operation device, electric components, gas piping, etc. are housed. A connecting mechanism crankcase 3 is present on the box body 2, and the box body 2 is attached to the connecting mechanism crankcase 3 by tightening bolts 4.

In such a switch operation box, the height h of the connecting mechanism crankcase 3 is determined by the height of the gantry 1. On the other hand, for the convenience of manufacturing parts, a space L is provided between the gantry 1 and the connecting mechanism crankcase 3. (See FIG. 5) fluctuates, so that there is a gap S between the box body 2 and the coupling mechanism crankcase 3 (see FIG. 5). Therefore, the pedestal 1 and the coupling mechanism crankcase 3 are separated from each other. It is necessary to adjust the height of the box body 2 when the box body 2 is fitted in between. In this case, since the upper surface of the box body 2 is conventionally fixed to the coupling mechanism crankcase 3 by bolts 4, the height adjusting spacer 5 is inserted between the gantry 1 and the box body 2 so that The height was adjusted (see Fig. 4). Further, since no water is allowed to enter the box body 2, the sealant 6 is applied to the joint between the box body 2 and the coupling mechanism crankcase 3 (see FIG. 4). In addition, 7 is a current transformer.

[Problems to be Solved by the Invention] Conventionally, in order to cope with a variation in the distance L between the gantry 1 and the coupling mechanism crankcase 3, the heavy box body 2 is lifted by a crane to mount the height adjustment spacer 5 on the gantry 1. Since it has to be inserted between the box body 2 and the box body 2, the height adjustment work becomes large-scaled, the work takes time, and the workability is poor. In addition, the sealant 6 needs to be applied for waterproofing, which requires a lot of man-hours. Further, waterproofing only the sealant 6 has a problem that the reliability of waterproofing is low.

An object of the present invention is to provide an operation box for a switch which can easily adjust a gap between a gantry and a crankcase of a connecting mechanism.

[Means for Solving the Problems] The structure of the present invention for achieving the above object will be described. In the present invention, a box in which an operating device is housed is installed on a pedestal, and the box is installed on the box. In a switch operating box having a connecting mechanism crankcase, an annular height adjusting spacer is interposed between the box body and the connecting mechanism crankcase, and a drive shaft extends from the connecting mechanism crankcase to the annular height. A waterproof ring is attached through the hole of the adjustment spacer to the inside of the box, and surrounds the lower portion of the connecting mechanism crankcase and the height adjusting spacer, and a waterproof ring is attached to the waterproof ring. The O-ring that seals between the box body and the O-ring that seals between the box body is fitted, and the box body and the coupling mechanism crankcase are fastened with bolts. To.

[Operation] In the present invention, the height adjustment spacer is inserted between the box body and the connection mechanism crankcase to adjust the distance between the gantry and the connection mechanism crankcase as described above. The work of hoisting the box is unnecessary, the number of work steps is small, the work time is short, and the work can be performed efficiently.

In addition, since the waterproof ring and the O-ring seal the portion where the drive shaft is led from the coupling mechanism crankcase to the box body between the box body and the coupling mechanism crankcase, application of sealant is unnecessary. The number of steps is reduced, and the reliability of waterproofing can be improved.

[Embodiment] Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings. The parts corresponding to those in FIGS. 4 and 5 described above are designated by the same reference numerals.

As shown in FIGS. 1 to 3 (A) and (B), in the operation box for a switch of the present embodiment, the box body 2 and the pedestal 1 are fixed, and the box body 2 and the connecting mechanism crankcase 3 are fixed. The distance L between the gantry 1 and the coupling mechanism crankcase 3 is adjusted between the and. That is, an annular height adjusting spacer 8 made of, for example, brass is interposed between the box body 2 and the coupling mechanism crankcase 3. The height adjusting spacer 8
Is composed of two flat plate ring bodies as shown in FIG. The drive shaft 3a is led out of the connecting mechanism crankcase 3 into the box body 2 through the hole of the annular height adjusting spacer 8. At the bottom of the connecting mechanism crankcase 3,
A waterproof ring 9 is fitted around the lower part of the coupling mechanism crankcase 3 and the height adjusting spacer 8. As shown in FIGS. 3A and 3B, the waterproof ring 9 has a structure in which O-ring fitting grooves 9a and 9b are provided on the inner peripheral surface and the lower surface. Also, a bolt hole 9c is formed on the lower surface of the waterproof ring 9.
Is provided. The waterproof ring 9 and the coupling mechanism crankcase 3 are sealed with an O-ring 10, and the waterproof ring 9 and the box body 2 are sealed with a bolt 12 via an O-ring 11.

In such a switch operation box, the O-ring 10,1
With the waterproof ring 9 added with 1 being floated, the height adjusting spacer 8 having several thicknesses is adjusted so that there is no gap between the box body 2 and the coupling mechanism crankcase 3. After adjustment, lower the waterproof ring 9 and bolt to the box body 2 side.
Secure with 12 screws.

[Advantage of the Invention] As described above, in the switch operating box according to the present invention, the space between the frame and the connecting mechanism crankcase is adjusted between the box body and the connecting mechanism crankcase. Since the work of lifting a heavy box is unnecessary, the number of work steps is small, the work time is short, and the work can be performed efficiently. Also, since it is not necessary to hang the box,
You can see the exact gap and adjust the height accurately. Furthermore, between the box body and the coupling mechanism crankcase,
Since the waterproof ring and the O-ring seal the part where the drive shaft is led out from the coupling mechanism crankcase to the box,
The application of sealant is unnecessary, the number of steps is reduced, and the reliability of waterproofing can be improved.

[Brief description of drawings]

FIG. 1 is a vertical sectional view of an embodiment of a switch operating box according to the present invention, FIG. 2 is a perspective view of a height adjusting spacer used in this embodiment, and FIGS. 3 (A) and (B) are A vertical cross-sectional view and a bottom view of the waterproof ring used in this embodiment, and FIGS. 4 and 5 are a vertical cross-sectional view and a side view of a conventional switch operating box. 1 ... Stand, 2 ... Box, 3 ... Connection mechanism crankcase, 3a ... Drive shaft, 4 ... Bolt, 6 ... Sealant,
8: Height adjustment spacer, 9: Waterproof ring, 10, 11 ...
… O-rings, 12… bolts.

Claims (1)

[Scope of utility model registration request] 1. A switch operation box in which a box housing an operating device and the like is installed on a frame, and a connecting mechanism crankcase is present on the box, wherein the box and the connecting mechanism crankcase are provided. An annular height adjusting spacer is interposed between the driving mechanism and the drive mechanism, and the drive shaft is led out of the coupling mechanism crankcase into the box through the hole of the annular height adjusting spacer. A waterproof ring is attached to surround the height adjusting spacer, and an O ring that seals between the coupling mechanism crankcase and an O ring that seals between the box body is fitted to the waterproof ring. An operating box for a switch, wherein the box body and the connecting mechanism crankcase are fastened together by bolts.