CN208848808U - A kind of isolation switch contact device - Google Patents

Abstract

The utility model discloses a kind of isolation switch contact devices of disconnecting switch technical field, including static contact, the bottom of static contact is bolted with elastic piece, the bottom of elastic piece is bolted with moving contact, the top fixing sleeve of moving contact is connected to sheath, the inner surface of moving contact is equipped with positioning seat by guider screw, and the face center of positioning seat is welded with intermediate touch base, is welded with attachment base at the top of the left and right sides of sheath；The utility model passes through when moving contact is protruding, since the inner wall of attachment base and intermediate touch base is slidably connected, so that sheath moves out compressed spring with moving contact, L-type sliding block is slided in the inner cavity of fixture block, moving contact is avoided to contact intermediate touch base, prevent the outside of moving contact from offseting downward under the effect of gravity, switch regular event, enhancing switch sensitivity.

Description

A kind of isolation switch contact device

Technical field

The utility model relates to disconnecting switch technical fields, and in particular to a kind of isolation switch contact device.

Background technique

Disconnecting switch is that one kind is mainly used for " isolated power supply, grid switching operation, to be connected to and cut off low current circuit ", nothing The switching device of arc-suppression function.Disconnecting switch has the insulation distance for meeting prescribed requirement and apparent when quartile is set between contact Disconnect mark；When coincidence is set, electric current under normal loop condition can be carried and exceptional condition is (such as short at the appointed time Road) under electric current switchgear.As patent CN201320633759.4 discloses a kind of isolation switch contact device, including it is upper Static contact, moving contact, lower static contact, insulated pull rod, operating shaft.Moving contact is by contact supporting, movable touch knife piece, touch spring group At contact supporting has two rows of parallel shelfs, and 4 movable touch knife pieces of arranging on each framed bent, the blade on two rows of shelfs is two-by-two It is opposed, 4 pairs of sub- contacts are formed altogether, in the top and bottom of each pair of sub- contact, are connected respectively by two pairs of touch springs, touching is provided Head pressure.Due to providing the contact pressure of moving contact by upper and lower each 8 touch springs, so the moving contact of this disconnecting switch Contact pressure be the 1/4 of 2 contact contact system contact pressures, be the 1/2 of 4 contact contact system contact pressures, significantly Reduce the operating work of operating mechanism.The reduction of contact pressure also reduces the frictional force of contact, improves the mechanical longevity of contact Life.But moving contact moves by partially on axis and realizes disconnecting switch or the movement that earthing switch closes a floodgate.Due to dynamic touching Head partially leaves intermediate touch base, one end that moving contact leaves is offset downward under the effect of gravity, shadow in making process Concentricity is rung, when combined floodgate is easy to withstand with static contact seat be isolated or is grounded static contact seat, and causing to switch cannot be operating normally.It is based on This, the utility model devises a kind of isolation switch contact device, to solve the above problems.

Utility model content

The purpose of this utility model is to provide a kind of isolation switch contact devices, to solve to propose in above-mentioned background technique Existing apparatus switch on of moving contact when be easy the problem of contacting with intermediate touch base.

To achieve the above object, the utility model provides the following technical solutions: a kind of isolation switch contact device, including quiet Contact, the bottom of the static contact are bolted with elastic piece, and the bottom of the elastic piece is bolted with moving contact, the top of the moving contact Portion's fixing sleeve is connected to sheath, and the inner surface of the moving contact is equipped with positioning seat by guider screw, in the surface of the positioning seat Centre is welded with intermediate touch base, is welded with attachment base at the top of the left and right sides of the sheath, attachment base described in two groups is respectively in Between touch base the connection of left and right sides inner wall top slide, the left and right sides inner wall bottom of the intermediate touch base passes through spring base difference Spring is fixed between the two groups of attachment bases in left and right, the top left side of the intermediate touch base, which runs through, is equipped with sliding slot, the centre The top right side of touch base is welded with card slot, L-type sliding block is welded at the top of the sheath, the top of the L-type sliding block is through cunning Slot and the outside for extending to intermediate touch base, the right-side slide bar of the L-type sliding block and the inner cavity of card slot are slidably connected, and the L-type is sliding The right end of the right-side slide bar of block is welded with fixture block, and the fixture block is corresponding with the right side bead of card slot.

Preferably, organic block is fixed on the static contact.

Preferably, the inner cavity of the moving contact is equipped with heat-conducting layer, is socketed with insulating layer on the outside of the heat-conducting layer.

Preferably, the intracavity bottom of the intermediate touch base is welded with guide rail, the bottom of the moving contact and the sliding of guide rail Connection.

Preferably, the inner wall of the card slot is equipped with lubricant coating.

Compared with prior art, the utility model has the beneficial effects that the utility model by static contact and moving contact it Between be connected with elastic piece, when moving contact and static contact cooperate, the elastic force of elastic piece forms moving contact and static contact Bigger active force, is completely embedded, when moving contact moves out intermediate touch base, when moving contact is protruding, due to The inner wall of attachment base and intermediate touch base is slidably connected, so that sheath moves out compressed spring with moving contact, L-type sliding block is in card The inner cavity of block is slided, and moving contact is avoided to contact intermediate touch base, prevents the outside of moving contact downward bias under the effect of gravity It moves, switch regular event, enhancing switch sensitivity.

Detailed description of the invention

In order to illustrate more clearly of the technical solution of the utility model embodiment, make required for being described below to embodiment Attached drawing is briefly described, it should be apparent that, the drawings in the following description are merely some embodiments of the present invention, For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings Other attached drawings.

FIG. 1 is a schematic structural view of the utility model.

Fig. 2 is touch base and contact connection structure schematic diagram among the utility model.

In attached drawing, parts list represented by the reference numerals are as follows:

Static contact 1, elastic piece 2, moving contact 3, sheath 4, positioning seat 5, intermediate touch base 6, attachment base 7, spring 8, sliding slot 9, Card slot 10, L-type sliding block 11, fixture block 12.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without creative efforts All other embodiment obtained, fall within the protection scope of the utility model.

The utility model provides a kind of technical solution referring to FIG. 1-2: a kind of isolation switch contact device, including stationary contact First 1, the bottom of static contact 1 is bolted with elastic piece 2, and the bottom of elastic piece 2 is bolted with moving contact 3, the top fixing sleeve of moving contact 3 It is connected to sheath 4, the inner surface of moving contact 3 is equipped with positioning seat 5 by guider screw, and the face center of positioning seat 5 is welded with centre Touch base 6, is welded with attachment base 7 at the top of the left and right sides of sheath 6, two groups of attachment bases 7 left and right sides with intermediate touch base 6 respectively The connection of inner wall top slide, the left and right sides inner wall bottom of intermediate touch base 6 by spring base respectively with two groups of left and right attachment bases 7 it Between be fixed with spring 8, the top left side of intermediate touch base 6, which runs through, is equipped with sliding slot 9, and the top right side of intermediate touch base 6 is welded with card Slot 10, the top of sheath 4 are welded with L-type sliding block 11, and the top of L-type sliding block 11 through sliding slot 9 and extends to the outer of intermediate touch base 6 The inner cavity in portion, the right-side slide bar and card slot 10 of L-type sliding block 11 is slidably connected, and the right end of the right-side slide bar of L-type sliding block 11 is welded with Fixture block 12, fixture block 12 are corresponding with the right side bead of card slot 10.

Wherein, organic block is fixed on static contact 1, so that static contact 1 is fixedly connected with base, the inner cavity of moving contact 3 is equipped with Heat-conducting layer, is socketed with insulating layer on the outside of heat-conducting layer, and effective while avoids Heat Conduction Material conductive, intermediate touch base 6 it is interior Bottom of chamber portion is welded with guide rail, the bottom of moving contact 3 and being slidably connected for guide rail, and moving contact 3 is avoided to contact the interior of intermediate touch base 6 The inner wall of wall, card slot 10 is equipped with lubricant coating, convenient for sliding.

One concrete application of the present embodiment are as follows: elastic piece 2 is connected between static contact 1 and moving contact 3, when moving contact 3 When cooperation with static contact 1, the elastic force of elastic piece 2 makes moving contact 3 and static contact 1 forms bigger active force, and connection is tight It is close, when moving contact 3 moves out intermediate touch base 6, when moving contact 3 is protruding, due to attachment base 7 and intermediate touch base 6 inner wall is slidably connected, so that sheath 4 moves out compressed spring 8 with moving contact 3, L-type sliding block 11 is in the inner cavity of fixture block 12 Sliding, avoids moving contact 3 from contacting intermediate touch base 6, prevents the outside of moving contact 3 from offseting downward under the effect of gravity, open Close regular event, enhancing switch sensitivity.

In the description of this specification, the description of reference term " one embodiment ", " example ", " specific example " etc. means Particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained at least one of the utility model In embodiment or example.In the present specification, schematic expression of the above terms be not necessarily referring to identical embodiment or Example.Moreover, particular features, structures, materials, or characteristics described can be in any one or more embodiment or examples In can be combined in any suitable manner.

The preferred embodiment in the utility model disclosed above is only intended to help to illustrate the utility model.Preferred embodiment is simultaneously There is no the details that detailed descriptionthe is all, also not limiting the utility model is only the specific embodiment.Obviously, according to this theory The content of bright book can make many modifications and variations.These embodiments are chosen and specifically described to this specification, is in order to preferably The principles of the present invention and practical application are explained, so that skilled artisan be enable to better understand and utilize this Utility model.The utility model is limited only by the claims and their full scope and equivalents.

Claims (5)

1. a kind of isolation switch contact device, including static contact (1), it is characterised in that: the bottom of the static contact (1) is bolted with The bottom of elastic piece (2), the elastic piece (2) is bolted with moving contact (3), and the top fixing sleeve of the moving contact (3) is connected to shield It covers (4), the inner surface of the moving contact (3) is equipped with positioning seat (5) by guider screw, the face center of the positioning seat (5) It is welded with intermediate touch base (6), is welded with attachment base (7), attachment base described in two groups at the top of the left and right sides of the sheath (4) (7) it is connect respectively with the left and right sides inner wall top slide of intermediate touch base (6), the left and right sides inner wall of the intermediate touch base (6) Bottom is fixed with spring (8) between the two groups of attachment bases (7) in left and right respectively by spring base, the top of the intermediate touch base (6) Through sliding slot (9) are equipped on the left of portion, the top right side of the intermediate touch base (6) is welded with card slot (10), the top of the sheath (4) Portion is welded with L-type sliding block (11), and the top of the L-type sliding block (11) through sliding slot (9) and extends to the outer of intermediate touch base (6) The inner cavity in portion, the right-side slide bar and card slot (10) of the L-type sliding block (11) is slidably connected, and the right side of the L-type sliding block (11) is sliding The right end of bar is welded with fixture block (12), and the fixture block (12) is corresponding with the right side bead of card slot (10).

2. a kind of isolation switch contact device according to claim 1, it is characterised in that: fixed on the static contact (1) Organic block.

3. a kind of isolation switch contact device according to claim 1, it is characterised in that: the inner cavity of the moving contact (3) Equipped with heat-conducting layer, insulating layer is socketed on the outside of the heat-conducting layer.

4. a kind of isolation switch contact device according to claim 1, it is characterised in that: the intermediate touch base (6) it is interior Bottom of chamber portion is welded with guide rail, the bottom of the moving contact (3) and being slidably connected for guide rail.

5. a kind of isolation switch contact device according to claim 1, it is characterised in that: the inner wall of the card slot (10) is set There is lubricant coating.