CN2340542Y

CN2340542Y - Power forceps for cutting electric cables

Info

Publication number: CN2340542Y
Application number: CN 97225710
Authority: CN
Inventors: 吕存智
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-09-04
Filing date: 1997-09-04
Publication date: 1999-09-29
Anticipated expiration: 2007-09-04

Abstract

The utility model relates to power forceps for cutting electric cables, which is especially suitable for cutting thick wires, such as copper or aluminium cables, steel cables, etc. The power forceps for cutting electric cables comprise a dual gear mass which is pivoted on the edge of the forceps and is integrated into integration by coaxial connection of a big gear and a pinion gear; the over hang rack of the big gear and an eccentric pendulum ring are engaged mutually; the pinion gear is engaged with the outer margin rack of the edge of a pair of adjustable forceps; stop buttons are arranged on a moving handle; a flanged edge which is corresponding to the stop button is arranged on the eccentric pendulum ring; one end of a convex lug is protruded inwardly on the end head of the swinging arm of a ratchet pawl, thereby, the cut off has the advantage of labor saving and the opening of the adjustable forceps is convenient.

Description

The reinforcement cable cutter

The utility model relates to a kind of cable cutter, is particularly suited for cutting off heavy wires such as copper, aluminium cable and steel wire rope.

At present, the operative clamp edge of universal cordage excising forceps is direct rack drives on a handgrip and clamp and cut off cable or steel wire, section is big for cutting off, the cable or the steel wire of intensity big (as: thicker wire) are very hard, often must not increase the handgrip brachium, could cut off, therefore, cause the size of pincers, weight excessive, and the occasion operation is very inconvenient maybe can't use in narrow, high-altitude etc.; In addition, need additional move to draw back to be engaged in tooth bar and ratchet on the operative clamp edge marginal tooth, operative clamp edge just can open, and obviously brings many troubles.

In view of this, the purpose of this utility model is to carry a kind of reinforcement cable cutter of arch, not increasing substantially under the pincers size situation, can reach reinforcement and cut off cable or steel wire, can also allow operative clamp edge open easily simultaneously.

The purpose of this utility model is achieved in that it comprises fixing pincers sword, operative clamp edge, fixing handle, movable handle, eccentric pendulum circle and ratchet, it is characterized in that: on fixing pincers sword, be pivoted by the overhanging tooth bar engagement of gear wheel and the coaxial dual gear piece that fuses of pinion and gear wheel and eccentric pendulum circle, the marginal tooth engagement of pinion and operative clamp edge; On movable handle, be provided with banking pin, and on off-centre pendulum circle, be provided with, inwardly stretch out an end lug in the swing arm termination of ratchet with the corresponding outward flange of banking pin.

Owing to adopt such scheme: laborsaving during cut-out, operative clamp edge opens also convenient.

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 the utility model exemplary embodiments schematic diagram.

Present embodiment comprise fixing pincers sword 1, operative clamp edge 2, fixing 3, dual gear piece 4, movable handle 5, eccentric pendulum enclose 6 and ratchet 7, as shown in Figure 1, wherein:

Fixing pincers sword 1 and operative clamp edge 2 all are the plate bodys that its inner rim has blade, and operative clamp edge 2 outer rims have marginal tooth 21, and its both corresponding terminations articulate with pivot 11, and the plane shear swing that can do to interlace belongs to prior art; The appropriate location of fixing pincers sword 1 is provided with rotating spacer pin 12, and its revealed section is a semicylinder, rises movable handle 5 wobbling action position-limiting actions; Also be provided with a pivot 13 thereon, as the axle center of movable handle 5 swings.

Fixing being fixedly connected on 3 fixed the lower end of clamping sword 1, holds use for rotating operative clamp edge 2, belongs to prior art; The projection that movable handle 5 terminations have a band eccentric orfice 514 is looked into pylon 51 and is fitted over eccentric orfice 511 slip caps on the pivot 13 of fixing pincers sword 1, makes this movable handle 5 belong to prior art around pivot 13 swings; In addition, on movable handle 5, also set firmly a banking pin 52.

Eccentric pendulum circle 6 has and the projection pylon 51 of the movable handle 5 overhanging tooth bar 62 on the centre bore 61 that matches and the outer rim thereof that slides, and promptly eccentric pendulum circle 6 is nested with on the projection pylon 51 of movable handle 5, belongs to prior art; Than outside, be provided with banking pin 52 corresponding outward flanges 63 with movable handle 5 outside relatively on the opposite side outer rim of tooth bar 62 at this off-centre pendulum circle 6.

Dual gear piece 4 is axially concentric fixedly connected gear wheel 41 and pinion 42 all-in-one-piece combination block, and be articulated on the fixing pincers sword 1 with pivot 43, wherein gear wheel 41 meshes with overhanging tooth bar 62, pinion 42 and marginal tooth 21 engagements, be move (tangentially the moving) of overhanging tooth bar 62, drive gear wheel 41 and rotate that the rotation of pinion 42 simultaneously drives marginal tooth 21 and rotates along gear wheel 41, play making 2 pairs of cables of operative clamp edge or steel wire boosting function, promptly increase cut-out power.

Ratchet 7 is by the pawl arm 72 of band edge pawl and swing arm 73 constitutes and be articulated in fixing the pincers on the sword 1 with pivot 71 around the corner, is provided with a stretching spring 74 and its other end in swing arm 73 inboards near pivot 71 and is connected on eccentric pendulum circle 6 edges genus prior art; Twoly stretch out an end lug 731 to the inside in swing arm 73 terminations, the elastic force of stretching spring 74 make pawl arm 72 and overhanging tooth bar 62 with in gear 41 engagements; Spacer pin 12 is articulated on the fixing pincers sword 1; End lug 731 remains on after movable handle 5 runs into spacer pin 12 outer rims to the right, still do not contact with end lug 731, when having only the plane of rotary spacing pin 12 semicylinders inside, movable handle 5 just can touch end lug 731, and the pawl that makes pawl arm 72 is thrown off the teeth groove of gear wheel 41, simultaneously, banking pin 52 remains on movable handle 5 and turns right after the outer rim of spacer pin 12, still can not contact with the outward flange 63 of off-centre pendulum circle 6, when having only the plane of rotary spacing pin 12 semicylinders inside, the banking pin 52 of movable handle 5 just can touch the outward flange 63 of eccentric pendulum circle 6, and the overhanging tooth bar 62 that makes eccentric pendulum circle 6 is thrown off gear wheel 41, at this moment operative clamp edge 2 just can open by relative fixed pincers sword 1, and promptly cutting edge is opened.

Present embodiment operating principle as follows:

At first, open movable handle 5 to the right, this moment, overhanging tooth bar 62 slipped over gear wheel 41 flank of tooth, towards left plate movable handle 5, when eccentric pendulum circle 6 was made eccentric rotary one angle, overhanging tooth bar 62 moved for one section at the tangential work of gear wheel 41 wheel rims, drive gear wheel 41 and turn over a tooth, the marginal tooth 21 that drives operative clamp edges 2 through pinion 42 turns right and draws close fixing pincers sword 1, repeats by above-mentioned action, and operative clamp edge 2 progressively clamps and cut off cable or steel wire with fixing pincers sword 1;

When cable or steel wire cut off finish after, earlier 180 ° of spacer pin 12 rotations, the plane that makes semicolumn inwardly, when pulling movable handle 5 to the right again, banking pin 52 on it promotes the outward flange 63 of eccentric pendulum circle 6, eccentric pendulum circle 6 is also turned right throw off gear wheel 41, the right hand edge of movable handle 5 touches the end lug 731 of ratchet 7 simultaneously, makes ratchet 7 swings, pawl arm 72 end pawls are thrown off the teeth groove of gear wheel 41, so the operative clamp edge 2 that can turn left opens cutting edge.

Claims

1, a kind of reinforcement cable cutter comprises fixing pincers sword (1), operative clamp edge (2), fixing (3), movable handle (5), eccentric pendulum circle (5) and ratchet (7), it is characterized in that: on fixing pincers swords (1), be pivoted by gear wheel (41) and the coaxial dual gear piece that fuses of last pinion (42) (overhanging tooth bar (62) engagement of (4) and gear wheel (41) and eccentric pendulum circle (6), marginal tooth (21) engagement of pinion (42) and operative clamp edge (2); On movable handle (5), be provided with banking pin (52), and be provided with on the off-centre pendulum circle (6) with the corresponding outward flange of banking pin (52) (63), swing arm (73) end noon in ratchet (7) in stretch out an end lug (731).