CN218384979U

CN218384979U - Rotary type solid-sealed polar pole

Info

Publication number: CN218384979U
Application number: CN202221616907.7U
Authority: CN
Inventors: 韩强; 宁鹏; 李峰
Original assignee: Xiamen Breaker Electric Co
Current assignee: Xiamen Breaker Electric Co
Priority date: 2022-06-27
Filing date: 2022-06-27
Publication date: 2023-01-24
Anticipated expiration: 2032-06-27

Abstract

The utility model discloses a rotary type solid-sealed polar pole, wherein a spindle hole for installing a rotary spindle is arranged on the solid-sealed polar pole, and an insulating pull rod is arranged in an insulating body and a vacuum arc extinguish chamber side by side; after the scheme is adopted, the utility model discloses utilize the rotation operations of utmost point post, be equivalent to as isolator's switch to utmost point post, realized tribit isolation earthing switch's function, owing to saved isolator, place vacuum interrupter and insulating pull rod side by side simultaneously, seal the third of utmost point post height saving admittedly, so whole aerify the cabinet volume and accomplish very little.

Description

Rotary type solid-sealed polar pole

Technical Field

The utility model relates to an electrical equipment refers in particular to an inflatable cabinet.

Background

At present, most of the solid-sealed polar columns with common structures are adopted at home and abroad as alternate insulating media of vacuum arc-extinguishing chambers in the inflatable cabinet, the occupied space of the inflatable cabinet is large, and if the size of the inflatable cabinet is reduced, an electric field in the cabinet body is overlarge, the distribution of the electric field is concentrated, flashover, corona and the like are easy to occur, so that the performance and the service life of the inflatable cabinet are reduced; the problem of temperature rise is also a great problem which puzzles the gas-filled cabinet, the insulation performance of the gas-filled cabinet is influenced by the temperature rise, and the breaking capacity of the vacuum arc-extinguishing chamber is reduced; the sealing problem is another difficult problem for the gas-filled cabinet, and if the sealing effect is not good, sulfur hexafluoride gas leakage can cause environmental pollution and gas-filled cabinet failure or even circuit failure. .

Chinese patent CN 101770892B relates to an annular rotary pole type vacuum switch, in which an incoming line static contact, an outgoing line static contact and a grounding static contact are distributed on an annular insulating frame, a rotary fulcrum of a rotary pole is arranged at an annular center of the annular insulating frame and rotates along an annular ring of the annular insulating frame, the rotary pole is composed of a vacuum arc-extinguishing chamber and a copper conductor connected with the vacuum arc-extinguishing chamber, moving contacts are respectively arranged at end portions of the rotary pole, and during the rotation of the rotary pole, the two moving contacts are respectively inserted into the incoming line static contact, the outgoing line static contact and the grounding static contact on the annular insulating frame. Although this structure has used the rotatory rotary post who has vacuum interrupter to close with closing of explosion chamber or breaking corresponding cooperation to different positions, nevertheless because rotary post adopts the V-arrangement, the direct copper conductor that links to each other of vacuum interrupter, electric clearance and creepage distance are not enough, and the explosion chamber moves the end when separating brake and has the risk of reverse power transmission, if have reverse power transmission, the explosion chamber moves end and screw thread conflict cover electrified, because of insulation distance is not enough to ground, has the potential safety hazard.

Contents of utility model

An object of the utility model is to provide a rotatory utmost point post that seals admittedly that the size is little, do not use solitary isolator, safe and reliable.

In order to achieve the above object, the utility model relates to a rotary embedded pole, wherein a vacuum arc-extinguishing chamber and an insulating pull rod are arranged in an insulating body of the embedded pole, a spindle hole for installing a rotary spindle is arranged on the embedded pole, an upper conductive contact is extended out of the vacuum arc-extinguishing chamber above the insulating body, and the end part of the upper conductive contact is provided with at least two pairs of upper conductive contact fingers which are oppositely arranged; the lower part of the vacuum arc extinguish chamber is provided with a movable conducting rod, and the conducting rod is in flexible connection with a lower conducting contact arranged on the outer side below the insulating body to realize conduction; an insulating pull rod is arranged in the insulating body side by side with the vacuum arc extinguish chamber, a conductive rod below the insulating pull rod and at the lower part of the vacuum arc extinguish chamber are connected through a transmission lever, and a connector at the upper end of the insulating pull rod extends upwards and is arranged outside the insulating body.

After the scheme is adopted, the utility model discloses utilize the rotation operations of utmost point post, be equivalent to as isolator's switch to utmost point post, realized tribit isolation earthing switch's function, owing to saved isolator, place vacuum interrupter and insulating pull rod side by side simultaneously, seal the third of utmost point post height saving admittedly, so whole aerify the cabinet volume and accomplish very little.

Drawings

FIG. 1 is a schematic view of the structure of the present invention;

FIG. 2 is a schematic view of the present invention;

FIG. 3 is a sectional view of the structure of the present invention;

fig. 4 is a schematic structural diagram of the grounding state in the use state of the present invention.

Description of the reference symbols:

1. a circuit breaker mechanism; 2. a plenum chamber; 3. the upper tool bit is supported in an insulating way; 4. an upper cutter head; 5. solid-sealing the pole; 51. an insulating body; 52. an upper conductive contact; 521. an upper conductive contact finger; 53. an insulating pull rod; 53. an insulated pull rod connector; 54. a lower conductive contact; 541. a lower conductive contact finger; 55. a spindle hole; 56 a small reversing mechanism; 57. vacuum arc-extinguishing chamber 58, soft connection; 59. a transmission lever; 6, a main shaft; 7. an upper cutter head; 8. the upper tool bit is supported in an insulating way; 9. a ground copper bar; 91. the earth copper bar tool bit.

Detailed Description

In order to explain the technical contents, structural features, objects and effects of the present invention in detail, the following description is made in conjunction with the embodiments and the accompanying drawings.

As shown in fig. 1, the utility model relates to an inflatable cabinet with rotary switch structure, plenum chamber 2 is equipped with and circuit breaker 1 (other structures are not related to the present case and are not marked), plenum chamber 2 is equipped with the inlet wire sleeve pipe above the outside, plenum chamber outside is equipped with the wire sleeve pipe, be equipped with in plenum chamber 2 and establish the upper knife head 4 that establishes in upper knife head insulating support 3 and establish in the lower knife head insulating support 8 lower knife head 7, as shown in fig. 2, 3, gu seal utmost point post 5 erects on rotating spindle 6 through spindle hole 55, vacuum interrupter 57 that establishes in gu seal utmost point post 5 insulator 51 stretches out upper conductive contact 52 to insulator 51 top, upper conductive contact 52 tip is equipped with at least two pairs of upper conductive contact fingers 521 that set up relatively; a movable conducting rod is arranged at the lower part of the vacuum arc extinguish chamber 57, and the conducting rod is electrically connected with a lower conducting contact 54 arranged at the lower outer side of the insulating body 51 through a flexible connection 58; an insulating pull rod 53 is arranged in the insulating body 51 and the vacuum arc-extinguishing chamber 57 in parallel, a conductive rod at the lower part of the vacuum arc-extinguishing chamber 57 is connected below the insulating pull rod 53 through a transmission lever 59, and a connector 531 at the upper end of the insulating pull rod 53 extends outside the insulating body 51 and is clamped on the small reversing mechanism 56 to be connected with the rotating main shaft; the connector 531 at the upper end of the insulating pull rod 53 can move up and down under the clamping of the small reversing mechanism 56 (linked with the main shaft). The upper part of the plenum chamber 2 is transversely provided with a grounding copper bar 9, as shown in fig. 4, a grounding copper bar cutter head on the grounding copper bar 9 can be inserted on the conductive contact head on the solid-sealed polar pole in a grounding state.

Because insulating pull rod is important component part among the switch utmost point post, insulating pull rod mainly plays high pressure (main electric component, support, transmission connecting lever and connecting rod etc.) and the insulating effect between ground (insulator erection frame and mounting bolt head) to will guarantee that the switch divides, closes safe electric clearance and the creepage distance of high pressure to ground under two states, the utility model discloses change insulating pull rod into and vacuum interrupter side by side, will seal utmost point post can form three stations with last tool bit, lower tool bit, ground connection copper bar respectively under the rotatory main shaft drives admittedly and be connected, its control mechanism should be field knowledge.

The above-mentioned only be the embodiment of the present invention, not consequently the restriction of the patent scope of the present invention, all utilize the equivalent shape or the structure transform made of the content of the specification and the attached drawings, or directly or indirectly use in other relevant technical fields, all including in the same way the patent protection scope of the present invention.

Claims

1. The utility model provides a rotation type seals utmost point post admittedly, is equipped with vacuum interrupter and insulating pull rod in the insulator body who seals utmost point post admittedly, its characterized in that: the solid-sealed polar pole is provided with a main shaft hole for installing a rotating main shaft, the vacuum arc-extinguishing chamber extends to the upper part of the insulating body to form an upper conductive contact, and the end part of the upper conductive contact is provided with at least two pairs of upper conductive contact fingers which are oppositely arranged; the lower part of the vacuum arc extinguish chamber is provided with a movable conducting rod which is in flexible connection with a lower conducting contact arranged on the outer side below the insulating body to realize conduction; an insulating pull rod is arranged in the insulating body side by side with the vacuum arc extinguish chamber, a conductive rod below the insulating pull rod and at the lower part of the vacuum arc extinguish chamber are connected through a transmission lever, and a connector at the upper end of the insulating pull rod extends upwards and is arranged outside the insulating body.