JPS62160437U

JPS62160437U -

Info

Publication number: JPS62160437U
Application number: JP3250986U
Authority: JP
Priority date: 1985-12-20
Filing date: 1986-03-06
Publication date: 1987-10-12
Also published as: JPH0334820Y2

Description

[Brief explanation of the drawing]

第１図はこの考案を具体化した第１実施例の限
流ヒユーズを省略した投入状態の開閉器の正面図
、第２図は限流ヒユーズを装着した投入状態の側
面図、第３図は同じく開閉器の投入状態における
接地用開閉駆動機構の側面図、第４図は同じく要
部部分正面図、第５図は接地用開閉駆動機構の投
入防止解除状態を示す側面図。第６図は同じく投
入防止状態を示す側面図、第７図は接触刃の接地
状態を示す要部側面図、第８図は同じくメガーテ
スト状態を示す側面図、第９図は第２実施例の接
地用開閉駆動機構の側面図、第１０図は同じく作
用を示す側面図、第１１図は第３実施例の接地用
開閉駆動機構の要部側面図、第１２図は同じく作
用を示す要部側面図、第１３図は第４実施例の限
流ヒユーズを省略した投入状態の開閉器の正面図
、第１４図は限流ヒユーズを装着した投入状態の
側面図、第１５図は第５実施例の開閉器の投入状
態における接地用開閉駆動機構の側面図、第１６
図は同じく要部部分正面図、第１７図は同じく開
閉器の開放状態における接地用開閉駆動機構の側
面図である。１……取付ベース、２，３……固定フレーム、
４……上部支持碍子、６……下部支持碍子、９…
…固定挾入電極、１１……ヒユーズ支持台、１２
……上部ヒユーズ挾持金具、１３……下部ヒユー
ズ挾持金具、１６……可動接触刃、１９……押上
げ棒、２１……操作軸、２２……操作ハンドル、
２７……接地用回動軸、３０……接地用可動電極
、３１……作動レバー、３２……駆動レバー、３
３……リンク、３５……投入防止レバー、３７…
…引張りバネ、４０……ロツク板、５２……連係
リンク、５４……駆動杆、５５……バネ掛止板、
５７……引張りバネ、５８……作動レバー、６１
……引張りバネ、６２，６３……係合突片、６４
……係合溝、６８……摺動孔、６９……摺動軸、
７１……ラツチ、７３……フツク、７７……係合
解除部材、Ａ，Ｂ，Ｃ……接地用開閉駆動機構、
Ｋ……機枠。 Figure 1 is a front view of the switch in the closed state with the current limiting fuse omitted according to the first embodiment embodying this invention, Figure 2 is a side view of the switch in the closed state with the current limiting fuse installed, and Figure 3 is a Similarly, FIG. 4 is a side view of the grounding opening/closing drive mechanism in the closing state of the switch, FIG. 4 is a front view of a main part thereof, and FIG. 5 is a side view showing the closing prevention release state of the grounding opening/closing drive mechanism. Fig. 6 is a side view similarly showing the closing prevention state, Fig. 7 is a side view of the main part showing the contact blade in the grounding state, Fig. 8 is a side view similarly showing the megger test state, and Fig. 9 is the second embodiment. FIG. 10 is a side view of the grounding opening/closing drive mechanism of the third embodiment, FIG. 11 is a side view of the main parts of the grounding opening/closing drive mechanism of the third embodiment, and FIG. 12 is a side view of the same operation. FIG. 13 is a front view of the switch in the closed state without the current limiting fuse of the fourth embodiment, FIG. 14 is a side view of the switch in the closed state with the current limiting fuse installed, and FIG. Side view of the grounding switching drive mechanism in the closed state of the switch of the embodiment, No. 16
17 is a front view of the main part, and FIG. 17 is a side view of the grounding opening/closing drive mechanism in the open state of the switch. 1... Mounting base, 2, 3... Fixed frame,
4... Upper support insulator, 6... Lower support insulator, 9...
... Fixed clamping electrode, 11 ... Fuse support, 12
...Upper fuse clamping fitting, 13...Lower fuse clamping fitting, 16...Movable contact blade, 19...Pushing rod, 21...Operation shaft, 22...Operation handle,
27... Rotating shaft for grounding, 30... Movable electrode for grounding, 31... Operating lever, 32... Drive lever, 3
3... Link, 35... Closing prevention lever, 37...
... Tension spring, 40 ... Lock plate, 52 ... Interlocking link, 54 ... Drive rod, 55 ... Spring retaining plate,
57... tension spring, 58... operating lever, 61
...Tension spring, 62, 63...Engaging protrusion, 64
...Engagement groove, 68...Sliding hole, 69...Sliding shaft,
71... Latch, 73... Hook, 77... Engagement release member, A, B, C... Grounding opening/closing drive mechanism,
K...Machine frame.

Claims

[Scope of Claim for Utility Model Registration] 1. A pair of upper and lower support insulators is fixed to a mounting base constituting the machine frame, a fixed electrode is provided on the upper support insulator, and both ends of a current limiting fuse are provided on the lower support insulator. A fuse supporting stand is provided with upper and lower fuse clamping fittings for attaching the current limiting fuse, and a movable contact blade electrically connected to the current limiting fuse is adapted to be able to come into contact with and separate from the fixed electrode. In the machine, a fixed grounding electrode is provided on the load-side connection terminal connected to the lower fuse clamp, and the grounding opening/closing drive mechanism drives the grounding opening/closing drive mechanism to open and close an insulating support plate provided at the bottom of the machine frame. An air switch with a current-limiting fuse, characterized in that a grounding rotational shaft is rotatably constructed, and the grounding rotational shaft is provided with a movable grounding electrode that connects and separates from the fixed earthing electrode. . 2. The air switch with current-limiting fuse according to claim 1, wherein the grounding opening/closing drive mechanism is linked to an operating shaft constituting the opening/closing mechanism of the switch.