CN2349712Y

CN2349712Y - Automatic resetting wobbler contact

Info

Publication number: CN2349712Y
Application number: CN 97249000
Authority: CN
Inventors: 王恩林; 董克贤
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-12-10
Filing date: 1997-12-10
Publication date: 1999-11-17
Anticipated expiration: 2007-12-10

Abstract

The utility model relates to an automatic resetting plum blossom contact. A plum blossom moving contact head is composed of a plum blossom moving contact stylus, a pressing spring, and an annular stylus frame, a plum blossom moving contact conductive rod, a resetting device which is arranged on a combination part of the plum blossom moving contact head and the conductive rod. The utility model has the advantages that after a static contact is drawn out, the plum blossom moving contact stylus can restore to the position which is appressed with the inner part of the annular groove of the conductive rod under the action of the resetting device. The problem that the plum blossom moving contact head drops is overcome. Automatic resetting is realized, and the safety in operation of a handcart type high voltage switch cabinet is ensured.

Description

Mume flower contact automatically resets

The utility model belongs to the High-Voltage Electrical Appliances field, and particularly a kind of is the supporting Mume flower contact that automatically resets of handcart type high-voltage switch cabinet.

Existing Mume flower contact is formed (figure eight) by fingertip (2), the stage clip (3) of plum blossom moving contact fingertip (2), plum blossom moving contact annular finger mount (4), the plum blossom moving contact conducting rod (5) of columniform fixed contact (1), plum blossom moving contact circular array.Because the error in switch cubicle manufacturing and the assembling, the plum blossom moving contact head that fixed contact (1) and plum blossom moving contact they (2), (3), (4) are made up is difficult in and docks insertion on the same axis, therefore in the embedding contact site of plum blossom moving contact fingertip (2) with the cannelure of plum blossom moving contact conducting rod (5), certain swing gap must be arranged, and it is sagging to produce the plum blossom moving contact head deadweight that plum blossom moving contact they (2), (3), (4) made up thus.When the swing excesssive gap sag of chain of promptly conducting oneself with dignity excessive, when the plum blossom moving contact head of fixed contact (1) and plum blossom moving contact they (2), (3), (4) combination closes the car insertion, very easily hit the fault of plum blossom moving contact fingertip (2), be unfavorable for the safe operation of high-tension switch cabinet.

The purpose of this utility model is to overcome the deficiencies in the prior art, adds a resetting means on existing plum blossom moving contact, and a kind of Mume flower contact that automatically resets is provided.

The utility model is achieved in that

It has a plum blossom moving contact conducting rod, and plum blossom moving contact fingertip contacted with it, that arrange is in the form of a ring arranged in the cannelure of this conducting rod, on this plum blossom moving contact fingertip stage clip is housed, and embeds in the lump in the annular finger mount.In the end of plum blossom moving contact fingertip, a fixed contact with matching is arranged, adorn a resetting means at plum blossom moving contact fingertip and plum blossom moving contact conducting rod cannelure contact site.

Described resetting means have the moving-coil (6) of a tubular and cooperate with it decide circle (7), in the annulus of moving-coil (6) and fixed circle (7), stage clip (8) is housed, fixed circle (7) and conducting rod (5) are with fixed screw (9) fixing (figure one).The middle part of the inside and outside circle of moving-coil (6) is wide circle footpath design for 2mm; The X taper design that interior circle launches in oriented both sides, two ends, 2mm circle footpath; Cylindrical has from the inboard X taper design of launching of the radially fixed circle of 2mm circle, and D-D4 decides (figure seven) according to the conducting rod of different current classes.

Under the free state, the afterbody of plum blossom moving contact fingertip (2) is close to the cannelure interior (figure two) of conducting rod (5) under the effect of compression spring (8), moving-coil (6).When inserting fixed contact (1), plum blossom moving contact fingertip (2) afterbody promotes to move behind the moving-coil (6), and compression spring (8) is compressed and energy storage (figure one); After extracting fixed contact (1), compression spring (8) promotes moving-coil (6) reach, and plum blossom moving contact fingertip (2) afterbody returns to again and promptly automatically resets to free state in the cannelure of being close to conducting rod (5), shown in figure two.

The utility model compared with prior art has following advantage:

1, in the fingertip (2) of plum blossom moving contact, stage clip (3), the plum blossom moving contact head of annular finger mount (4) combination and the joint portion of conducting rod (5), adorn a resetting means of forming by moving-coil (6), fixed circle (7), compression spring (8), fixed screw (9), after fixed contact (1) is extracted, plum blossom moving contact fingertip (2) is under the effect of this resetting means, return in the cannelure of being close to conducting rod (5), overcome plum blossom moving contact head deadweight sagging problem, eliminated free clearance, realized automatically reseting.When the journal offset of plum blossom moving contact conducting rod and fixed contact≤4mm, also can guarantee reliable plug, avoid mispluging fault.

2, simple in structure, be easy to make, only need adorn a resetting means can reach the purpose that automatically resets, and guarantees the safe operation of handcart type high-voltage switch cabinet.

Description of drawings:

Figure one is a structural representation of the present utility model;

Figure two is figure one view after fixed contact is extracted;

Figure three is that the utility model is offset the insertion view on fixed contact;

Figure four is the utility model view after skew on the fixed contact is extracted;

Figure five is that the utility model is offset the insertion view under fixed contact;

Figure six is that the utility model is offset the view after extracting under fixed contact;

Figure seven is the utility model resetting means moving-coil (6) schematic diagrames;

Figure eight is prior art constructions schematic diagrames.

Provide embodiment of the present utility model below in conjunction with accompanying drawing:

As shown in Figure 1, the utility model has a plum blossom moving contact conducting rod (5), the one plum blossom moving contact head by plum blossom moving contact fingertip (2), stage clip (3), annular finger mount (4) combination that assembles is mutually with it arranged on this conducting rod, adorn a resetting means in the joint portion of this head and conducting rod (5).Described resetting means is made up of moving-coil (6), fixed circle (7), stage clip (8), fixed screw (9).After fixed contact (1) is extracted, guarantee that plum blossom moving contact fingertip (2) resets under the effect of stage clip (8) the promotion moving-coil (6) of resetting means, shown in figure two.When skew in fixed contact (1) appearance or following skew≤4m, plum blossom moving contact contact of the present utility model (2) still can keep good the contact with plum blossom moving contact conducting rod (5) and fixed contact (1), shown in figure three, five.After fixed contact (1) was extracted, plum blossom moving contact fingertip (2) can reset under the stage clip (8) of resetting means promotes the effect of moving-coil (6), shown in figure four, six, inserts to guarantee that fixed contact (1) is reliable.

Claims

1, a kind of Mume flower contact that automatically resets, it has a plum blossom moving contact conducting rod (5), side at this conducting rod (5) has plum blossom moving contact fingertip contacted with it (2), stage clip (3) is housed on plum blossom moving contact fingertip (2), plum blossom moving contact they (2), (3) are inlaid in the plum blossom moving contact annular finger mount (4) in the lump, end at plum blossom moving contact fingertip (2), fixed contact with matching (1) is arranged, adorn a resetting means in plum blossom moving contact they (2), (3), the plum blossom moving contact head of (4) combination and the joint portion of conducting rod (5).Described resetting means is made up of fixed circle (6), moving-coil (7), compression spring (8), fixed screw (9).It is characterized in that: after fixed contact (1) was extracted, the compression spring of resetting means (8) promoted moving-coil (7), and plum blossom moving contact fingertip (2) is returned in the cannelure of being close to plum blossom moving contact conducting rod (5), realizes automatically reseting.