CN105552802A - Continuing wire clamp of power transmission and distribution line - Google Patents

Continuing wire clamp of power transmission and distribution line Download PDF

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Publication number
CN105552802A
CN105552802A CN201610095971.8A CN201610095971A CN105552802A CN 105552802 A CN105552802 A CN 105552802A CN 201610095971 A CN201610095971 A CN 201610095971A CN 105552802 A CN105552802 A CN 105552802A
Authority
CN
China
Prior art keywords
core pipe
paw
crimp
core tube
anticreep
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
CN201610095971.8A
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Chinese (zh)
Inventor
胡妍
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN201610095971.8A priority Critical patent/CN105552802A/en
Publication of CN105552802A publication Critical patent/CN105552802A/en
Withdrawn legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02GINSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G7/00Overhead installations of electric lines or cables

Abstract

The invention discloses a continuing wire clamp of a power transmission and distribution line, comprising a core tube, a set of pressing jaw assembly, a panel nut and a pressure welding element; the pressure welding element is equipped with a pressing plate part and an anti-drop connecting part; the pressure welding element is detachably arranged on the core tube through the anti-drop connecting part; the pressing plate part is located at outer side of the core tube; radial limiting slide holes are arranged on the tube wall of the core tube; the pressing jaw assembly comprises a pressing jaw for forming a wire clamping hole together with the pressure welding element; the pressing jaw comprises a top plate part, a guide slide block part and a drive thread part; the top plate part is located at the outer side of the core tube; the guide slide block part is inserted in a corresponding radial limiting slide hole on the core tube; the drive thread part stretches into the tube cavity of the core tube; the panel nut is rotationally arranged in the tube cavity of the core tube; the panel nut comprises a panel thread part in engaged fit with the drive thread part of the pressing jaw; the panel nut drives the pressing jaw to be close to or be away from the center of the core tube. The zero-sequence current power transformer has excellent anti-loose effect.

Description

A kind of electric line connecting clip
Technical field
The invention belongs to overhead transmission line electric armour clamp technical field, be specifically related to a kind of electric line connecting clip.
Background technology
In the construction of overhead power line, when cable Xu Zuo branch or when continuing, need with electric line connecting clip, two insulated conductors to be linked together.Power circuit connecting clip has simple installation, low cost, safe and reliable non-maintaining feature.Without the need to blocking leader cable, can doing cable branch without the need to the insulating barrier peelling off cable, joint insulate completely, can live line working, can do on-the-spot branch in cable optional position; Do not need to use termination rack, coupling box; And joint warp resistance, shockproof, waterproof, anticorrosion are aging; Use insulating power circuit connecting clip to do cable branch, comprehensive benefit is obvious, and cost performance is better than conventional coupling arrangement in the past.
Traditional power circuit connecting clip is primarily of enhancing housing, piercing blade, waterproof silicone grease, high-strength bolt and nut composition, and the preferred torque nut of its nut, its structure is comparatively ripe, also obtains applying comparatively widely.But conventional electric power circuit connecting clip also Shortcomings part, the pressure of clamp relies on the pressure of plain bolt assembly, and its fastness is poor, easily loosens.
Summary of the invention
The object of this invention is to provide one and there is better anti-loosening effect, effectively ensure fastness to be installed, electric line connecting clip stable and reliable for performance.
The technical scheme realizing the object of the invention is: a kind of electric line connecting clip, comprises a core pipe, a set of paw assembly, a plane nut and at least one crimp; Crimp is provided with pressing plate portion and anticreep connecting portion; Crimp is arranged on core pipe by anticreep connecting portion is dismountable, and pressing plate portion is positioned at outside core pipe; The tube wall of core pipe is provided with radial spacing slide opening; Paw assembly comprises for being combined to form the paw in clamp hole with crimp; Paw comprises top plate portion, from the inwall of top plate portion to the guide runner portion of projecting inward formation and the driving threaded portion that is arranged on guide runner portion; Top plate portion is positioned at outside core pipe, and the pressing plate portion clamping of top plate portion and a corresponding crimp forms one for clamping the clamp hole of electric power cable; Guide runner portion inserts on core pipe in a corresponding spacing slide opening of radial direction, drives threaded portion to stretch in the tube chamber of core pipe; Plane nut rotation is arranged in core pipe tube chamber; Plane nut comprises and to drive with paw threaded portion to engage adaptive flat thread portion; The periphery wall of core pipe is provided with vertically the anticreep chute for installing location crimp; Anticreep chute and anticreep connecting portion are all axially arranged along core pipe; Anticreep connecting portion slips into a corresponding anticreep chute along core pipe axial direction from a side of anticreep chute; The periphery wall of core pipe arranges multiple draw-in groove, and pressing plate is provided with the clamping support column outstanding towards core pipe direction or clamping supporting bracket, and each clamping support column or clamping supporting bracket snap in a corresponding draw-in groove; Plane nut drives its flat thread portion reciprocating rotation, so drive paw in paw assembly towards core tube hub near or away from, thus unclamp or clamp the electric power cable being arranged in clamp hole.
The present invention has positive effect: (1) the present invention drives paw clamping electric power cable by flat thread portion, compare with by traditional bolt assembly clamping electric power cable, larger pressure can be applied, and there is excellent anti-loosening effect, effectively ensure the reliability of long-term work.
Accompanying drawing explanation
Fig. 1 is a kind of perspective view of the first structure of the present invention;
Fig. 2 is for wire clamp shown in Fig. 1 is from a kind of perspective view during another angle views;
A kind of front view that Fig. 3 is wire clamp shown in Fig. 1;
Fig. 4 partly cuts open structural representation for the one of wire clamp shown in Fig. 1;
A kind of explosive view that Fig. 5 is wire clamp shown in Fig. 1;
Fig. 6 is for wire clamp shown in Fig. 1 is from a kind of explosive view during another angle views;
Fig. 7 is a kind of perspective view of the second structure of the present invention;
Fig. 8 is for wire clamp shown in Fig. 7 is from a kind of perspective view during another angle views;
A kind of front view that Fig. 9 is wire clamp shown in Fig. 7;
Figure 10 partly cuts open structural representation for the one of wire clamp shown in Fig. 7.
Embodiment
(embodiment 1)
The present embodiment is a kind of electric line connecting clip, sees shown in Fig. 1 to Fig. 6, comprises a core pipe 2, a set of paw assembly 3, plane nut 4 and three crimps 1.
The tube wall of core pipe is provided with three spacing slide openings 22 of radial direction, and the spacing slide opening of each radial direction all runs through core tube wall along the radial direction of core pipe; The spacing slide opening of each radial direction is positioned at core tubular axis middle part upwards, and the radial cross-sectional shape of each radial spacing hole is I-shaped; The internal perisporium of core pipe is provided with the annular gear platform 23 to projecting inward formation.
Each crimp is provided with pressing plate portion 11 and anticreep connecting portion 12; Crimp is arranged on core pipe by anticreep connecting portion is dismountable; Pressing plate portion 11 axially extends along core pipe, and the inwall in pressing plate portion is provided with deep-slotted chip breaker 13, and the periphery wall in pressing plate portion is circular arc; Anticreep connecting portion is that the radial cross-sectional shape of each post plate is L shape from pressing plate portion two side ends inwardly outstanding two the post plates formed; In the present embodiment, two L shape post plates are oppositely arranged;
The periphery wall of core pipe is provided with vertically multiple anticreep chute 24 for installing location crimp; Each anticreep chute comprises the mounting groove 241 that two radial sections are L shapes; In the present embodiment, two adjacent anticreep chutes are oppositely arranged; Each mounting groove and corresponding post plate adaptation; The anticreep connecting portion of each crimp slips into a corresponding anticreep chute along core pipe axial direction from a side of anticreep chute; In concrete practice, anticreep connecting portion can select other shape, as long as make the anticreep connecting portion of crimp can not shift out along core caliber to from anticreep chute; In concrete practice, also can select the mode of clamping that fixing crimp is installed; Such as multiple draw-in groove is set on the periphery wall of core pipe, each pressing plate arranges inwardly outstanding clamping support column or clamping supporting bracket, each clamping support column or clamping supporting bracket are directly snapped in a corresponding draw-in groove, also can prevent shackle member from shifting out core pipe along core pipe radial direction, this structure is also feasible.
The spacing slide opening of each radial direction is just arranged the inwall of a corresponding crimp.
Paw assembly comprises for being combined to form the paw in clamp hole with crimp; In the present embodiment, paw assembly comprises three paws 5, and each paw comprises top plate portion 51, from the inwall of top plate portion to the guide runner portion 52 of projecting inward formation and the driving threaded portion 53 that is arranged on guide runner portion; Top plate portion axially extends along core pipe, and guide runner portion is along core caliber to extension; The outer wall of each paw top plate portion is provided with arc clip slot 511; Each paw top plate portion is positioned at outside core pipe, and just arranges the pressing plate portion of a corresponding crimp; Each guide runner portion inserts on core pipe in a corresponding spacing slide opening of radial direction, and each threaded portion that drives stretches in the tube chamber of core pipe; Each paw reciprocatingly slides along the radial direction of core pipe under the guide and limit effect of the spacing slide opening of radial direction; The radial cross-sectional shape in each guide runner portion is I-shaped with radial spacing hole adaptation.
In the present embodiment, crimp is identical with the quantity of paw, and in concrete practice, the quantity of crimp and paw can be select between one to five, and the present embodiment selects three.
The arc clip slot of each paw top plate portion is just arranged the deep-slotted chip breaker in a corresponding crimp pressing plate portion, and this arc clip slot and this deep-slotted chip breaker clamping form a clamp hole 6, and each clamp hole is for clamping an electric power cable.The present embodiment forms three clamp holes altogether, for clamping three electric power cables.In concrete practice, the size of each crimp can be different, and such as, distance between the deep-slotted chip breaker in each pressing plate portion and core tube wall is different, thus can form the clamp hole varied in size, for clamping the cable of different thicknesses.
Plane nut is arranged in core pipe tube chamber, and between the driving threaded portion of each paw and core pipe gear platform; Plane nut comprises and to drive with each paw threaded portion to engage adaptive flat thread portion 41 and be positioned at the fastening part 42 of plane nut center, the side that plane nut adjoins paw assembly arranges flat thread portion, and another side of plane nut and core pipe gear platform slide adjacent; The periphery wall of plane nut and core inside pipe wall slide adjacent; Flat thread portion is annular, and flat thread portion is provided with archimedean spiral groove, and the driving threaded portion of paw assembly is provided with and the thread groove of this archimedean spiral groove adaptation, each side driving threaded portion to be arranged on guide runner portion, place adjacent flat nut.
The present embodiment, in order to connect electricity from insulating power cable, is also provided with multiple puncture 7 in each deep-slotted chip breaker and each arc clip slot; Specifically, respectively puncture along core caliber to protrusion.The existence of puncture, can not carry out peeling process to insulating power cable, effectively can connect electricity.In concrete practice, if what will clamp is bare wire, then can not puncture be set.
In the present embodiment, each paw is the integral piece made by casting forming, and each crimp is also the integral piece made by casting forming, and each puncture is made when casting forming; In concrete practice, puncture also can adopt alternate manner to make; Such as in each deep-slotted chip breaker and each arc clip slot, be provided with multiple installation draw-in groove, then installed in draw-in groove be inlaid in corresponding one by the die-cut puncture sheet made, puncture sheet comprises installation portion and thorn blade, and installation portion is inlaid in be installed in draw-in groove, and thorn blade then exposes installing card groove and forms puncture.The benefit of this structure is that puncture sheet can adopt the material different with paw to make, and especially selects and treats that clamp cable same material used is made, being conducive to obtaining better electrical gas performance.
The fastening part of the present embodiment midplane nut is interior hexagonal shape fastener hole or interior hexagonal shape binding groove, and it is twisted operation and adopts inner hexagon spanner; In concrete practice, described fastening part just can adopt other shape, and such as square or in-line or quincunx, all can select.
Plane nut is in reciprocating rotation, drive its flat thread portion reciprocating rotation, and then drive each paw by the driving threaded portion of engaging adaptation with it, because each paw can only move back and forth along the radial direction of core pipe under the guide and limit effect of the spacing slide opening of radial direction, thus make the move mode of each paw be close to each other towards core tube hub or away from, thus unclamp or clamp the electric power cable being arranged in each clamp hole.
When the present embodiment is on the overhead power line of high-altitude, be conducive to alleviating vibration; In addition, the present embodiment drives paw clamping electric power cable by flat thread portion, compares with by traditional bolt assembly clamping electric power cable, particularly excellent in anti-loosening effect, effectively ensures the reliability of long-term work.The present embodiment is be arranged on core pipe by sliding or snap fit due to crimp, first cable can be placed in the arc clip slot of each paw, more corresponding crimp is loaded in corresponding anticreep chute, corresponding electric power cable can be placed in clamp hole; This structure makes to clamp the easy to operation of electric power cable.
(embodiment 2)
The present embodiment is substantially identical with embodiment 1, and difference is: see shown in Fig. 7 to Figure 10, in the present embodiment each crimp periphery wall on be also sheathedly fixed with current transformer 8; This current transformer 8 comprises annular matrix 81 and intelligent control module 82, intelligent control module can comprise wireless transmit/receive units, when there being leakage current in three electric power cables, annular matrix will induce secondary current, and intelligent control module sends distance host by wireless transmit/receive units to this secondary current information; Intelligent control module is arranged on and is enclosed in the region that formed by annular matrix inwall, core tube wall and crimp outer wall, thus makes full use of space, is conducive to overall small-sized and integrated.
The present embodiment entirety can use as high pressure zero sequence current mutual inductor, for detecting the existence of leakage current, and Timeliness coverage leak current fault.
Obviously, the above embodiment of the present invention is only for example of the present invention is clearly described, and is not the restriction to embodiments of the present invention.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all execution modes.And these belong to connotation of the present invention the apparent change of extending out or variation still belong to protection scope of the present invention.

Claims (1)

1. an electric line connecting clip, is characterized in that: comprise a core pipe, a set of paw assembly, a plane nut and at least one crimp; Crimp is provided with pressing plate portion and anticreep connecting portion; Crimp is arranged on core pipe by anticreep connecting portion is dismountable, and pressing plate portion is positioned at outside core pipe; The tube wall of core pipe is provided with radial spacing slide opening; Paw assembly comprises for being combined to form the paw in clamp hole with crimp; Paw comprises top plate portion, from the inwall of top plate portion to the guide runner portion of projecting inward formation and the driving threaded portion that is arranged on guide runner portion; Top plate portion is positioned at outside core pipe, and the pressing plate portion clamping of top plate portion and a corresponding crimp forms one for clamping the clamp hole of electric power cable; Guide runner portion inserts on core pipe in a corresponding spacing slide opening of radial direction, drives threaded portion to stretch in the tube chamber of core pipe; Plane nut rotation is arranged in core pipe tube chamber; Plane nut comprises and to drive with paw threaded portion to engage adaptive flat thread portion; The periphery wall of core pipe is provided with vertically the anticreep chute for installing location crimp; Anticreep chute and anticreep connecting portion are all axially arranged along core pipe; Anticreep connecting portion slips into a corresponding anticreep chute along core pipe axial direction from a side of anticreep chute; The periphery wall of core pipe arranges multiple draw-in groove, and pressing plate is provided with the clamping support column outstanding towards core pipe direction or clamping supporting bracket, and each clamping support column or clamping supporting bracket snap in a corresponding draw-in groove; Plane nut drives its flat thread portion reciprocating rotation, so drive paw in paw assembly towards core tube hub near or away from, thus unclamp or clamp the electric power cable being arranged in clamp hole.
CN201610095971.8A 2016-01-15 2016-01-15 Continuing wire clamp of power transmission and distribution line Withdrawn CN105552802A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610095971.8A CN105552802A (en) 2016-01-15 2016-01-15 Continuing wire clamp of power transmission and distribution line

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610095971.8A CN105552802A (en) 2016-01-15 2016-01-15 Continuing wire clamp of power transmission and distribution line

Publications (1)

Publication Number Publication Date
CN105552802A true CN105552802A (en) 2016-05-04

Family

ID=55831821

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610095971.8A Withdrawn CN105552802A (en) 2016-01-15 2016-01-15 Continuing wire clamp of power transmission and distribution line

Country Status (1)

Country Link
CN (1) CN105552802A (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2793486Y (en) * 2005-03-28 2006-07-05 郑春开 Clasp cable device
CN202917711U (en) * 2012-11-13 2013-05-01 北京振兴计量测试研究所 Fastening fixture for tail cover of electric connector
CN204276947U (en) * 2014-12-01 2015-04-22 温岭市深澳机床厂(普通合伙) Scroll chuck
CN204578044U (en) * 2015-05-20 2015-08-19 科都电气有限公司 A kind of strain relief clamp connection device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2793486Y (en) * 2005-03-28 2006-07-05 郑春开 Clasp cable device
CN202917711U (en) * 2012-11-13 2013-05-01 北京振兴计量测试研究所 Fastening fixture for tail cover of electric connector
CN204276947U (en) * 2014-12-01 2015-04-22 温岭市深澳机床厂(普通合伙) Scroll chuck
CN204578044U (en) * 2015-05-20 2015-08-19 科都电气有限公司 A kind of strain relief clamp connection device

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Application publication date: 20160504