CN102658534A

CN102658534A - Bundled movable contact flaring dedicated tool

Info

Publication number: CN102658534A
Application number: CN201210102752XA
Authority: CN
Inventors: 周建明
Original assignee: ZHEJIANG SINOERA ELECTRIC POWER AUTOMATION TECHNOLOGY Co Ltd
Current assignee: ZHEJIANG SINOERA ELECTRIC POWER AUTOMATION TECHNOLOGY Co Ltd
Priority date: 2012-04-10
Filing date: 2012-04-10
Publication date: 2012-09-12

Abstract

A bundled movable contact flaring dedicated tool has a rack and a toothed base for receiving the rack, wherein the toothed base rides on the rack via a ratchet and can move to the front end of the rack under the cooperation of handle control and a pawl and a stopper. The bundled movable contact flaring dedicated tool also has a roller wheel base fixed at the front end of the rack, and a roller wheel is arranged in each of accommodating chambers at two sides of the fixation position of the roller wheel base and the rack. The bundled movable contact flaring dedicated tool further has a traction rope wound on the two roller wheels, the rope body of the traction rope forms a ring in front of the front end of the rack, and two ends of the rope are adjustably fixed on the toothed base. The inventive tool adopts a rack-ratchet cooperation structure to control the working ring size. As a result, in application, the working ring is adjusted in size according to movable contacts of different diameters and then fitted on a workpiece, and a handle is operated to conveniently realize movable contact flaring operation, so as to achieve convenient loading/unloading of the contact and a contact arm.

Description

Bundling type moveable contact enlarging specific purpose tool

[technical field]

The present invention relates to a kind of specific purpose tool, relate in particular to the bundling type moveable contact enlarging specific purpose tool that belongs to a kind of primary cut-out.

[background technology]

In the handcart type high-voltage switch cabinet, breaker access galvanic circle is that the bundling type moveable contact (being commonly called as the quincunx moving contact) through circle is realized with contacting of static contact.The moving contact that is installed on the handcart is formed by contact and the butt joint of contact arm two parts; For guaranteeing that the contact inner chamber contacts with the effective of contact arm end; Contact blade anchor ring two ends at contact are bundling two very tight extension springs respectively, and therefore, the actual loading, unloading difficulty of contact and contact arm is very big.

For addressing the above problem, ZL200610053505X discloses a kind of " circuit-breaker bundling type moveable contact special mounting tool ".It is made up of spring clip, extrusion cup and Handleset three parts, and the shape of spring clip is the lampshade shape, and the outer shape of its lumen port shape and the first end of movable contact is complementary, and the cover wall is provided with the convergent-divergent clearance groove to the cover top opening.Said extrusion cup is nested with the periphery at spring clip, and the spring clip bottom has the gap apart from the extrusion cup bottom; Spring clip and extrusion cup are cascaded by a pull bar, and the other end and the Handleset of pull bar link, and the change in location of handle can make spring clip in the chamber of extrusion cup, make axial stretching, causes the convergent-divergent of spring clip convergent-divergent clearance groove.During use, the lumen port of spring clip is put at the back of contact, under the Handleset effect, the rim of a cup of extrusion cup applies the power that contracts in one to spring clip, makes the positive enlarging of contact, thereby realizes the loading and unloading of contact arm.But; The specific purpose tool of this structure; In practical application, have following problem: 1, different electric current level breaker have the moving contact of different-diameter, and the bundling type moveable contact that a kind of specific purpose tool can only corresponding a kind of diameter has brought difficulty to practical application.Moreover it is heavy especially that the bundling type moveable contact that corresponding diameter is excessive, this instrument not only seem, and operation is also relatively more difficult.

[summary of the invention]

For solving the problems referred to above that prior art exists; The present invention aims to provide a kind of bundling type moveable contact enlarging specific purpose tool of novel structure; This instrument not only can be realized the enlarging operation to the bundling type moveable contact of different-diameter, but also has simple in structure, easy to operate advantage.

For realizing above-mentioned purpose, the present invention has adopted following technical scheme: this bundling type moveable contact enlarging specific purpose tool is characterized in that:

Have a tooth bar and be used to admit the toothholder of this tooth bar; This toothholder rides on the said tooth bar through a ratchet, and this toothholder can move towards the front end of said tooth bar under one handle control and a ratchet, stop block cooperation;

Have a roller mount, this roller mount is fixedly installed on the front end of said tooth bar, in the containing cavity of this roller mount and said tooth bar bearing both sides, is respectively equipped with a roller;

Have a pull rope, this pull rope is wrapped on described two rollers, and the rope of this pull rope forms a ring in the place ahead of said tooth bar front end, and the two ends adjustable of this rope is fixed on the said toothholder.

As preferably, during practical implementation, on said ring, be provided with a plurality of balls.

As preferably, during practical implementation, the front end of said handle is the matrix under shed, and two arms and the said ratchet of this matrix are located by bearing pin, and ratchet is matched with the flank of tooth of tooth bar.

As preferably, during practical implementation, said ratchet is positioned at the said matrix top that is to the under shed handle.

As preferably, during practical implementation, have the projection that extends to both sides at the front end of said toothholder, on this both sides projection, be respectively equipped with lock rope assembly, said lock rope assembly is made up of U font screw bolt and nut.

Beneficial effect: compared with prior art; The present invention adopts tooth bar and ratchet fit structure to control the size of said ring, therefore, and in use; As long as adjust the size of ring according to the contact of different-diameter; It is enclosed within on the workpiece, and actuating handle contractile ring just can be realized contact enlarging operation easily then.

For deepening that understanding of the present invention is made further detailed description below in conjunction with accompanying drawing through embodiment.

[description of drawings]

Fig. 1 is the perspective view of one embodiment of the invention.

Among the figure: toothholder 1, lock rope assembly 11, stop block 12, spring 121, tooth bar 2, tooth 21, handle 3, handle free bearing 31, ratchet 4, ratchet shaft 41, ratchet 5, pull rope 6, left side rope 6a, right rope 6b, ball 61, tail of rope 62, roller mount 7, bearing pin 71.

[specific embodiment]

Referring to Fig. 1.The Control Component that the enlarging specific purpose tool of present embodiment is made up of tooth bar 2, toothholder 1, ratchet 4 and handle 3, and center on the associated components formation that pull rope 6 is provided with, associated components comprises lock rope assembly 11.On the flank of tooth 21 of tooth bar 2, ratchet 4 is set, ratchet 4 is arranged on the toothholder 1 through the handle free bearing 31 of ratchet shaft 41, bearing and handle 3 matrixs two arms.Be complementary with ratchet 4, the hinged ratchet 5 that is provided with at the matrix top of handle free bearing 31, ratchet 5 is resetted by torsion spring control.At the front end of toothholder 1, ratchet 4 is provided with stop block 12 and spring 121 thereof relatively.

The above-mentioned associated components that is provided with around pull rope 6 comprises: roller mount 7, and the roller that is positioned at roller mount 7 containing cavities, lock rope assembly 11 etc.This roller mount 7 is fixedly installed on the front end of said tooth bar 2, in the containing cavity of this roller mount 7 and said tooth bar 2 bearing both sides, a level is set to the roller of installing respectively.Lock rope assembly 11 is arranged on the projection of toothholder 1 front end both sides, and lock rope assembly 11 can adopt U font screw bolt and nut, realizes the purpose of locking pull rope 6.Under the original state; Pull rope 6 is wrapped on two rollers; Rope forms a ring in the place aheads of said tooth bar 2 front ends, use as the building ring of admitting workpiece, and this building ring is by the left side 6a that restricts among the figure; Constitute after right rope 6b intersects, the big I of building ring is by the lock rope position adjustment of the lock rope assembly 11 of both sides.

A string ball 61 is set on said building ring; The diameter of ball 61 should be complementary with the spacing of two extension springs on the moving contact; Guarantee that pull rope 6 is when the butt joint bundling type moveable contact; The deflation anchor ring that can make building ring is perpendicular to moving contact, thereby makes constrictive force that building ring produces with respect to not run-off the straight of contact, otherwise the enlarging effect can differ from.

For understanding the present invention better, the use of specific purpose tool is once described again below in conjunction with accompanying drawing:

Hold handle 3 and lift counterclockwise, make ratchet 5, stop block 12 break away from ratchets 4, but this moment move left and right toothholder 1, adjust the building ring size.Then, the front end of contact is put into building ring, through lock rope assembly 11 locking left side rope 6a, right rope 6b; Swing handle 3; Make toothholder 1 along with the continuous rolling of ratchet 4 on the flank of tooth 21 moves right, at this moment, building ring tightens gradually and diminishes; After the contact blade around the contact receiving compartment port opens the realization enlarging fully, can carry out the loading, unloading operation of contact and contact arm.

Claims

1. bundling type moveable contact enlarging specific purpose tool is characterized in that:

Have a tooth bar (2) and be used to admit the toothholder (1) of this tooth bar (2); This toothholder (1) rides on the said tooth bar (2) through a ratchet (4), and this toothholder (1) can move towards the front end of said tooth bar (2) under one handle (3) control and a ratchet (5), a stop block (12) cooperation;

Have a roller mount (7), this roller mount (7) is fixedly installed on the front end of said tooth bar (2), in the containing cavity of this roller mount (7) and said tooth bar (2) bearing both sides, is respectively equipped with a roller;

Have a pull rope (6), this pull rope (6) is wrapped on described two rollers, and the rope of this pull rope (6) forms a ring in the place ahead of said tooth bar (2) front end, and the two ends adjustable of this rope is fixed on the said toothholder (1).

2. enlarging specific purpose tool as claimed in claim 1 is characterized in that: on said ring, be provided with a plurality of balls (61).

3. enlarging specific purpose tool as claimed in claim 1 is characterized in that: the front end of said handle (3) is the matrix under shed, and two arms of this matrix and said ratchet (4) make ratchet (4) match with the flank of tooth (21) of tooth bar (2) by bearing pin (41) location.

4. enlarging specific purpose tool as claimed in claim 1 is characterized in that: said ratchet (5) is positioned at the said matrix top that is under shed handle (3).

5. enlarging specific purpose tool as claimed in claim 1 is characterized in that: the front end at said toothholder (1) has the projection that extends to both sides, on this both sides projection, is respectively equipped with lock rope assembly (11), and said lock rope assembly (11) is made up of U font screw bolt and nut.