CN201126790Y - Fixed contact apparatus of high voltage earthed switch - Google Patents

Abstract

The utility module discloses a static contact device of a high voltage grounding switch. The brackets are respectively arranged with two contacts and two guiding boards. The eight-shaped opening direction of two contacts is vertical to the eight-shaped opening direction of the guiding board; the outer side of the two contacts is respectively arranged wit ha plate-shaped spring; the upper end of the plate-shaped spring is fixed on the bracket; the lower end is contacted to the contact in flexible way; the insulating mat is arranged between the plate-shaped spring and the contact. The middle part of the plate-shaped spring is an arc surface; two ends are both planes with pores; the insulating mat is made from the polyfluortetraethylene; the shape is rivet; the utility model has a rational design, simple structure, great security and low cost; at the same time the utility model satisfies the request of the users for the ability of sensing current of the grounding switch, which is easy to popularize. The utility model has great social and economical benefits.

Description

The static contact head device of high voltage ground switch

One, technical field:

The utility model relates to the switchgear that a kind of high voltage power transmission and transforming station is used, and especially relates to a kind of static contact head device of high voltage ground switch.

Two, background technology:

The structure of existing earthed switch fixed contact mostly is that the fingertip pressing plate is equipped with in the fingertip outside, helical spring (stage clip) is housed between each fingertip and fingertip pressing plate, each spring is by guide pillar (graphite material) location, and assembling process is more loaded down with trivial details, and production efficiency is not high; Simultaneously, cylindrical spring corrosion obscission taking place repeatedly, thereby has influence on the product safety reliability.Secondly, have the structure of high voltage ground switch now, do not possess the ability of opening and closing induction current, can not satisfy the requirement of power consumer.

Three, summary of the invention:

Technical problem to be solved in the utility model is: overcome the deficiencies in the prior art, provide a kind of reasonable in design, simple in structure, security performance is good and the static contact head device of lower-cost high voltage ground switch.

The technical solution of the utility model is: a kind of static contact head device of high voltage ground switch, comprise support 1, be separately installed with 4,5 and two guide plates 6,7 of two fingertips on the described support 1, the splayed opening direction that described two fingertips 4,5 form and two splayed opening directions that guide plate 6,7 forms, the outside of described two fingertips 4,5 is provided with a plate shape spring 2 respectively, described plate shape spring 2 upper ends are fixed on support 1, its lower end and fingertip 4,5 Elastic Contact are provided with insulation cushion 3 between described plate shape spring 2 and the fingertip 4,5.

The centre of described plate shape spring 2 is an arc surface, and two ends are the plane and have the hole, and its upper end is fixedly mounted on support 1 together by bolt and fingertip 4,5, and its lower end is connected with insulation cushion 3.

Described insulation cushion 3 is made by polytetrafluoroethylene, and it is shaped as rivet-like, fixes in the hole on 2 times transverse planes of described plate shape spring.

The beneficial effects of the utility model are:

1, the utility model is reasonable in design, adopts plate shape spring to replace the cylindrical spring of original structure, has avoided the corrosion of cylindrical spring to come off, thereby has guaranteed the long-term safety of product; Satisfied the user has the ability of opening and closing induction current to earthed switch requirement simultaneously.

2, the utility model simplifies the structure, and is easy to assembly, effectively raises production efficiency, greatly reduces maintenance cost simultaneously.

3, the utility model insulation cushion adopts rivet shape, easy accessibility.In addition, it is applied widely, is easy to promote, and has good society and economic benefit.

Four, description of drawings:

Fig. 1 is the structural representation of the static contact head device of high voltage ground switch;

Fig. 2 is a B-B cut-away view among Fig. 1;

A is to diagrammatic sketch among Fig. 3 Fig. 1.

Five, embodiment:

Embodiment: referring to Fig. 1, Fig. 2, among the figure, 1-support, 2-plate shape spring, 3-insulated rivet, fingertip before the 4-, fingertip behind the 5-, 6-left side guide plate, the right guide plate of 7-.

The centre of plate shape spring 2 is an arc surface, two ends are the plane and have the hole, and its upper end is fixedly mounted on the support 1 together by bolt and preceding fingertip 4, back fingertip 5, and insulation cushion 3 is made by polytetrafluoroethylene, it is shaped as rivet-like, fixes in the hole on 2 times transverse planes of plate shape spring.Support 1 also is equipped with left guide plate 6, right guide plate 7, and the splayed opening direction that front and back fingertip 4,5 forms is vertical with the splayed opening direction that left and right sides guide plate 6,7 forms, the inner end of insulation cushion 3 and front and back fingertip 4,5 Elastic Contact.

During use, rotate conducting rod, the auxiliary fingertip of conducting rod at first contacts with right guide plate 7 with left guide plate 6, thereby plays the effect of opening and closing induction current, and guide effect is arranged again simultaneously.Be rotated further conducting rod, this moment, the conducting rod assembling changed ascending motion (approximate straight line motion) into, between the fingertip 4,5, finished making process before and after plug-in strip inserts; Its clamping force passes to fingertip 4,5 by plate shape spring 2 through insulation rivet 2, thereby clamps plug-in strip, satisfies the product long-term safety and uses.

The connected mode that changes the planform of plate shape spring, the planform that changes insulation cushion and change plate shape spring and support and insulation cushion can be formed a plurality of embodiment, is common excursion of the present utility model, does not describe in detail one by one at this.

Claims (3)

1, a kind of static contact head device of high voltage ground switch, comprise support (1), be separately installed with two fingertips (4 on the described support (1), 5) and two guide plates (6,7), described two fingertips (4,5) the splayed opening direction of Xing Chenging and two guide plates (6,7) the splayed opening direction of Xing Chenging, it is characterized in that: described two fingertips (4,5) the outside is provided with a plate shape spring (2) respectively, described plate shape spring (2) upper end is fixed on support (1), its lower end and fingertip (4,5) Elastic Contact, described plate shape spring (2) and fingertip (4,5) be provided with insulation cushion (3) between.

2, the static contact head device of high voltage ground switch according to claim 1, it is characterized in that: the centre of described plate shape spring (2) is an arc surface, two ends are the plane and have the hole, its upper end is fixedly mounted on support (1) together by bolt and fingertip (4,5), and its lower end is connected with insulation cushion (3).

3, the static contact head device of high voltage ground switch according to claim 2 is characterized in that: described insulation cushion (3) is made by polytetrafluoroethylene, and it is shaped as rivet-like, fixes in the hole on the following transverse plane of described plate shape spring (2).

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