Ring main unit switch isolation crank arm

Abstract

A ring main unit switch isolation crank arm is provided with a crank arm and an assembly part, the crank arm is provided with a left installation plate and a right installation plate, a middle assembly support is arranged between the left installation plate and the right installation plate, the middle assembly support is provided with an assembly hole, and the assembly part is provided with a through hole. The left mounting plate and the right mounting plate can be matched with each other to form a mounting space, the middle assembling support is arranged on the left mounting plate and the right mounting plate, assembling between the left mounting plate and the right mounting plate can be more stable through the middle assembling support, and the assembling plates are arranged on the left mounting plate and the right mounting plate, so that the assembling efficiency is improved. The isolation hanging wall and other parts in the ring main unit can be conveniently and well assembled by means of the assembly plate, and the assembly efficiency is further improved.

Description

Technical Field

[0001] The utility model relates to a switch fitting, in particular to an isolating toggle arm for a ring main unit switch. Background Art

[0002] Nowadays, many ring main units are filled with insulating and environment-friendly gases. The use of insulating and environment-friendly gases enables the components inside the ring main unit to operate more smoothly. A circuit breaker in a ring main unit uses sulfur hexafluoride gas as an arc extinguishing medium and an insulating medium. A circuit breaker is a commonly used auxiliary equipment for power facilities. During the use of a circuit breaker, an auxiliary switch is usually configured as an electrical accessory of the circuit breaker. For the circuit breaker switch, an insulating toggle arm is often required for support and installation. The opening and closing operations of the circuit breaker are realized by the contact and separation of a moving contact and a static contact, and the movement of the moving contact is transmitted through a toggle arm.

[0003] In the prior art: CN202020933870.5, an insulating toggle arm for an SF6 circuit breaker. The utility model discloses an insulating toggle arm for an SF6 circuit breaker, which includes a first toggle arm, a second toggle arm and a connecting pipe; the left sides of the first toggle arm and the second toggle arm are set as left connecting ends, a connecting pipe is arranged between the left connecting ends, a connecting inner sleeve is arranged inside the connecting pipe, a limiting convex block is arranged on the inner wall of the connecting inner sleeve, the cavity of the connecting inner sleeve is set as an installation hole, a connecting column is arranged on the outer side of the connecting pipe, and both ends of the connecting column are respectively connected with the first toggle arm and the second toggle arm. The right sides of the first toggle arm and the second toggle arm are set as right connecting ends; the right connecting end is of a V-shaped structure, the upper part of the right connecting end is set as a first connecting arm, and the lower part of the right connecting end is set as a second connecting arm.

[0004] Although the structure in the prior art is novel in design, easy to install, convenient for angle adjustment and has high practicability, there is also a problem that good bottom assembly cannot be carried out, resulting in poor assembly effect of the toggle arm. Summary of the Utility Model

[0005] In order to overcome the deficiencies of the prior art, the utility model provides an isolating toggle arm for a ring main unit switch.

[0006] The utility model is realized by adopting the following technical scheme: an isolating toggle arm for a ring main unit switch is provided with a toggle arm and an assembly component. Left and right mounting plates are arranged on the toggle arm. An intermediate assembly bracket is arranged between the left and right mounting plates. Assembly holes are arranged on the intermediate assembly bracket. The assembly holes on the left and right mounting plates and the intermediate assembly bracket are fixed by screws. The assembly component is an assembly connection module. An assembly plate is arranged on the assembly connection module. The assembly plate is connected to the left and right mounting plates by welding. Assembly holes are arranged on the left and right mounting plates.

[0007] An assembly space is provided on one side of the described assembly hole, and a locking component is arranged in the assembly space. The locking component is a locking pin shaft.

[0008] An assembly round hole is provided on the assembly space. A locking pin shaft is arranged in the assembly round hole, and an abutting piece is arranged on the locking pin shaft.

[0009] Front protruding blocks are provided on the left mounting plate and the right mounting plate. An arc-shaped plate is provided on the front protruding blocks, and a front covering cover is arranged between the arc-shaped plates.

[0010] Compared with the prior art, when the utility model is in use, an installation space can be formed by the mutual cooperation of the left mounting plate and the right mounting plate. An intermediate assembly bracket is arranged on the left mounting plate and the right mounting plate. By using the intermediate assembly bracket, the assembly between the left mounting plate and the right mounting plate can be made more stable. Assembly plates are arranged on the left mounting plate and the right mounting plate. Relying on the assembly plates, it is convenient to isolate the wall-mounted part from other components in the ring main unit for good assembly, and the assembly efficiency is further improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 is a schematic structural diagram of the utility model;

[0012] Figure 2 is a schematic structural diagram of the utility model;

[0013] Figure 3 is a schematic structural diagram of the utility model;

[0014] In the figure: 1 is the left mounting plate, 2 is the right mounting plate, 3 is the intermediate assembly bracket, 4 is the screw, 5 is the assembly plate, 6 is the assembly hole, 7 is the locking pin shaft, 8 is the assembly round hole, 9 is the abutting piece, 10 is the front protruding block, 11 is the arc-shaped plate, and 12 is the front covering cover. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0015] Next, in combination with the drawings and specific embodiments, the present utility model will be further described. It should be noted that on the premise of no conflict, the following described embodiments or technical features can be combined arbitrarily to form new embodiments.

[0016] A switch isolation crank arm for a ring main unit is provided with a crank arm and an assembly component. The crank arm is provided with a left mounting plate 1 and a right mounting plate 2. A middle assembly bracket 3 is arranged between the left mounting plate 1 and the right mounting plate 2. The middle assembly bracket 3 is provided with assembly holes. The assembly holes on the left mounting plate, the right mounting plate and the middle assembly bracket are fixed by screws 4. The assembly component is an assembly connection module. The assembly connection module is provided with an assembly plate 5. The assembly plate 5 is connected to the left mounting plate 1 and the right mounting plate 2 by welding. The left mounting plate 1 and the right mounting plate 2 are provided with assembly holes 6.

[0017] It is necessary to further strengthen the strength inside the crank arm. A middle assembly bracket 3 is arranged between the left mounting plate 1 and the right mounting plate 2. By relying on the middle assembly bracket 3, the strength inside the crank arm can be further improved. At the same time, the left mounting plate 1 and the right mounting plate 2 are provided with assembly holes 6. An assembly space is arranged on one side of the assembly hole 6. A locking component is arranged in the assembly space. The locking component is a locking pin shaft 7.

[0018] When the crank arm needs to be further assembled with parts, the parts can be inserted into the assembly space. Then, in order to make the assembly of the parts and the crank arm more stable, the locking pin shaft 7 can be relied on to further press against the parts. An assembly round hole 8 is arranged on the assembly space. A locking pin shaft 8 is arranged in the assembly round hole 8. A contact piece 9 is arranged on the locking pin shaft 8.

[0019] The left mounting plate 1 and the right mounting plate 2 are provided with front convex blocks 10. An arc plate 11 is arranged on the front convex blocks 10. A front cover 12 is arranged between the arc plates 11. When the crank arm needs to be further operated, the front cover 12 can be used to facilitate the operator to further operate the crank arm. During the operation, since the front cover 12 is arranged on the crank arm, the operation of the crank arm is made safer by using the front cover 12.

[0020] The above embodiments are only the preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and substitutions made by those skilled in the art on the basis of the present invention belong to the scope of protection required by the present invention.

Claims

1. A switch isolation toggle arm for a ring main unit, provided with a toggle arm and an assembly component, characterized in that: The swing arm is provided with a left mounting plate and a right mounting plate. An intermediate assembly bracket is arranged between the left mounting plate and the right mounting plate. The intermediate assembly bracket is provided with assembly holes. The assembly holes on the left mounting plate, the right mounting plate and the intermediate assembly bracket are fixed by screws. The assembly component is an assembly connection module. An assembly plate is arranged on the assembly connection module. The assembly plate is connected to the left mounting plate and the right mounting plate by welding. The left mounting plate and the right mounting plate are provided with assembly holes.

2. The isolating toggle arm of the ring main unit switch according to claim 1, characterized in that: An assembly space is arranged on one side of the assembly hole. A locking component is arranged in the assembly space. The locking component is a locking pin shaft.

3. The isolating toggle arm of the ring main unit switch according to claim 2, characterized in that: An assembly round hole is arranged on the assembly space. A locking pin shaft is arranged in the assembly round hole. A butting piece is arranged on the locking pin shaft.

4. A switch isolation toggle arm for a ring main unit, characterized in that: The left mounting plate and the right mounting plate are provided with front convex blocks. An arc-shaped plate is arranged on the front convex blocks. A front cover is arranged between the arc-shaped plates.

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