CN2517131Y

CN2517131Y - Cable terminal binding post

Info

Publication number: CN2517131Y
Application number: CN 01269899
Authority: CN
Inventors: 张建华
Original assignee: ZHEJIANG JIULI FIRE-RESISTANT CABLE Co Ltd
Current assignee: ZHEJIANG JIULI FIRE-RESISTANT CABLE Co Ltd
Priority date: 2001-12-31
Filing date: 2001-12-31
Publication date: 2002-10-16
Anticipated expiration: 2011-12-31

Abstract

The utility model relates to a spiral pressing cable terminal wiring terminal, comprising a main body (1), a press-loading nut (8) and an active taper sleeve (6) arranged in the cavity (16) of the main body (1), the utility model has a frustum shape, the two ends of the top surface (18) and the bottom surface (12) of the frustum are in open air, the frustum has a hollow, a permeable joint (9) from the top surface (18) to the bottom surface (12) of the frustum is arranged on the surface of the frustum, the end side of the press-loading nut (8) has an end surface for make the movable taper sleeve (6) move along axial direction. The utility model has the advantages of stable wiring, shortcut and convenient operation, good contact, repeated use of the wiring terminal.

Description

The cable termination binding post

Technical field

The utility model relates to a kind of terminal jockey of lv power cable, and it belongs to a kind of spiral and press-fits the type binding post.

Background technology

Common existing power cable connecting terminal is a hydraulic tongs compression joint type splicing ear, adopt hydraulic tongs confined pressure mode, i.e. special die by hydraulic tongs is under action of hydraulic force, make the crimping position compression of binding post, thereby the conductor wire core of cable and binding post are linked together.The other end of binding post is connected with binding post, terminal board or the electric power earial drainage row of power consumption equipment with screw or bolt.In electrical power transmission system, though use the compression joint type binding post can reach the purpose of electric power transfer, but because its connection need be finished with hydraulic tongs, and different conductor wire core cross sections needs different pressing molds, and specific purpose tool, technological equipment is more, operation is numerous and diverse, trouble is installed, operating efficiency is lower.Secondly, adopt compression joint type binding post and cable conduction core, after particularly the sub-thread conductor wire core connects, because terminal is different with lead material, and the difference on the physical property occurs, the contact performance between the connector is good inadequately, can produce bigger contact resistance at connecting portion, heating obviously and after using a period of time, gets loose, conducts electricity the electric property of bad reduction power circuit thereby be easy to generate at connecting portion during energising.

Summary of the invention

The purpose of this utility model is to overcome the shortcoming that exists in the above-mentioned prior art, and a kind of connection and easy for installation, cable termination binding post efficiently are provided.

The utility model solves the problems of the technologies described above the technical scheme that is adopted: a kind of spiral press-fits the type binding post, it includes terminal body, movable tapered sleeve and press-fits nut, described body one end be cable fixedly ear climb, it is the round of flat hollow, can pass through bolt, nut and is connected with guiding device such as bus-bar, its end opposite is a cable incoming end of being with external screw thread and internal taper hole.Described cable incoming end has the die cavity of taper type, be the awl point inwardly, the awl end outwardly disposed.Be furnished with a movable tapered sleeve in described taper type die cavity, described movable tapered sleeve also is taper type, all smooth mouthful of its end face and bottom surface, inner hollow.Described press-fit processed on the nut inner wall connecting thread arranged, its side has one to be used for promotion activity tapered sleeve and to make axially movable end wall.

The movable tapered sleeve of described taper type can be watt to be put together by polylith (preferably three) awl, the loop wire groove of processed indent is embedded with elastic thread within it the described awl of polylith watt elasticity is bundled into one on the awl wall at the place, the nearly frustum of stub end bottom surface of the movable tapered sleeve of the taper type that is put together.Described elastica preferably is the elastic wire of " C " font.

The movable tapered sleeve of described taper type also can be all-in-one-piece movable tapered sleeve, and just need not offer indent loop wire groove this moment on the conical surface.Have the saturating seam that runs through from frustum item face to frustum bottom surface on its conical surface, described seam can be that the generatrix direction along circular cone is opened on the conical surface, also can along with element of cone mutually the direction of oblique offer.

Description of drawings

Fig. 1 is the exploded perspective view of first embodiment of the present utility model;

Fig. 2 is the user mode (press-fiting nut is screwed) of Fig. 1 embodiment;

Fig. 3 is the cut-away view of Fig. 1 embodiment main part;

Fig. 4 is the stereogram of the movable tapered sleeve (many lobe awl watt split types) of Fig. 1 embodiment;

Fig. 5 is the stereogram of the movable tapered sleeve of the utility model second embodiment (integral type);

Fig. 6 is the stereogram of the movable tapered sleeve of the utility model the 3rd embodiment (integral type).

Embodiment

Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.

To have showed first embodiment of the present utility model among Fig. 1 to Fig. 4, spiral press-fits the ear of a flat hollow circular ring shape of an end of type cable splicing ear main body (1) and climbs (29), is used for being fixedly connected with electric power bus-bar (10).The part of the other end of main body (1) for admitting cable socket to insert, its inner hollow has taper type chamber (16), and processed connection external screw thread (2) on its outer surface, described chamber (16) are the awl point inwardly, awl end layout outside.In described chamber (16), is furnished with the movable tapered sleeve (6) of a frustum type, it is made up of three lobes awl watt (a 17) amalgamation that evenly divides vertically, offer the loop wire groove (7) of indent at described awl watt stub end, have an elastic steel traveler (3) that is " C " font to be entrenched in the described loop wire groove (7) three lobes awls watt (17) are flexibly to be bundled in one.When installing and using, cable (23) is penetrated from press-fiting nut (8) center, pass described movable tapered sleeve (6) again, extend into the bottom of main body (1) inner chamber (16), then the screw thread (2) on nut (8) and the main body (1) is spirally connected firmly mutually, this has just finished installation.

Fig. 5 is second embodiment of the present utility model, its main body (1), nut (8) are all identical with first embodiment, difference is that its movable tapered sleeve is all-in-one-piece, and it is the saturating groove of leaving along the cone generatrices direction (9), from frustum end face (18) running through at the bottom of the frustum.

Fig. 6 is the 3rd embodiment of the present utility model, its main body (1) is all identical with first embodiment with nut (8), difference is that its movable tapered sleeve is all-in-one-piece, its saturating groove (20) is along becoming the direction of oblique to leave with cone generatrices, running through mutually from frustum end face (21) to frustum bottom surface (22).

Effect of the present utility model be to adopt screw thread spin, simple and convenient, cable radially is subjected to uniformly entad tightening force along with moving axially constantly in cone-shaped cavity in press-fiting process, like this, the long-pending increase of conductive contact surfaces, contact resistance reduce, and conductivity improves.

When operation, only need use common spanner just can finish the work.Destructive distortion can not occur in addition in installation process, it is reusable that this spiral compresses dress cable splicing ear, so can repeatedly use.Again on the one hand, it connects closely, reliable operation.

Claims

1. cable termination binding post, it includes terminal body (1), movable tapered sleeve (6) and press-fits nut (8), it is characterized in that: there are the inner chamber (16) of a taper type, processed connection external screw thread (2) on its outer surface in the slotting porch of the described body of a. (1) admittance cable; B. described inner chamber (16) lining is furnished with a movable tapered sleeve (6), described movable tapered sleeve (6) is taper type, have the saturating seam (9) that runs through from frustum end face (18) to frustum bottom surface (12) on its sidewall, described taper type inner chamber (16) be awl point inwardly, awl end direction outwardly arranges, described press-fit processed on nut (8) internal perisporium interior connecting thread (11) arranged, it is distolateral to have one to be used for promotion activity tapered sleeve (6) and to make axially movable end wall (13).

2. cable termination binding post as claimed in claim 1, it is characterized in that: described movable tapered sleeve (6) is to be put together by polylith awl watt (17), processed on the awl wall of locating in the nearly frustum of the stub end bottom surface (12) of the movable tapered sleeve of the taper type that is put together, the loop wire groove (7) of indent is embedded with elastic thread within it polylith awl watt (17) elasticity is bundled into one.

3. cable termination binding post as claimed in claim 1 is characterized in that: the elastica (3) that is embedded in the described indent loop wire groove (7) is the elastic wire that is " C " font.

4. cable termination binding post as claimed in claim 1 is characterized in that: described movable tapered sleeve (6) is an all-in-one-piece tapered sleeve, has the saturating seam (19) that runs through from frustum item face (18) to frustum bottom surface (12) on its conical surface.

5. cable termination binding post as claimed in claim 1 is characterized in that: described seam (19) is that the generatrix direction along cone is opened on the conical surface.

6. cable termination binding post as claimed in claim 1 is characterized in that: described seam (22) is that the edge is opened on the conical surface with the direction that the cone bus is oblique.