CN105552583A - Continuing metal ware of overhead line - Google Patents
Continuing metal ware of overhead line Download PDFInfo
- Publication number
- CN105552583A CN105552583A CN201610096532.9A CN201610096532A CN105552583A CN 105552583 A CN105552583 A CN 105552583A CN 201610096532 A CN201610096532 A CN 201610096532A CN 105552583 A CN105552583 A CN 105552583A
- Authority
- CN
- China
- Prior art keywords
- core pipe
- paw
- crimp
- plane
- plate portion
- 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- Withdrawn
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/28—Clamped connections, spring connections
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/24—Connections using contact members penetrating or cutting insulation or cable strands
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/28—Clamped connections, spring connections
- H01R4/38—Clamped connections, spring connections utilising a clamping member acted on by screw or nut
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G7/00—Overhead installations of electric lines or cables
Landscapes
- Laying Of Electric Cables Or Lines Outside (AREA)
Abstract
The invention discloses a continuing metal ware of an overhead line, comprising a core tube, two set of pressing jaw assemblies and two plane nuts; press-connection lug bosses are arranged on the inner peripheral wall of the core tube; radial limiting slide holes are arranged on the tube wall of the core tube; a baffle table is arranged on the inner peripheral wall of the core tube; every set of pressing jaw assembly comprises multiple pressing jaws; the two plane nuts are rotationally arranged in the tube cavity of the core tube; the two plane nuts are respectively located at two sides of the baffle table; every plane nut comprises a fastening part and a plane threaded part fitting with every pressing jaw in a corresponding set of pressing jaw assembly; every plane nut drives the plane threaded part to carry out reciprocating rotation so as to drive every pressing jaw in a corresponding set of pressing jaw assembly to being close to or being away from the center of the core tube. The continuing metal ware of the invention has excellent anti-loose effect.
Description
Technical field
The invention belongs to overhead transmission line electric armour clamp technical field, be specifically related to a kind of overhead transmission line splicing fitting.
Background technology
In the construction of overhead power line, when cable Xu Zuo branch or when continuing, need with power circuit splicing fitting, two insulated conductors to be linked together.Power circuit splicing fitting 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 splicing fitting to do cable branch, comprehensive benefit is obvious, and cost performance is better than conventional coupling arrangement in the past.
Traditional power circuit splicing fitting 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 splicing fitting 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, overhead transmission line splicing fitting stable and reliable for performance.
The technical scheme realizing the object of the invention is: a kind of overhead transmission line splicing fitting, comprises a core pipe, two casing pressure claw assemblies, two plane nuts and at least one crimp; The tube wall of core pipe is provided with radial spacing slide opening; 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; Each casing pressure claw 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; Each plane nut rotation is arranged in core pipe tube chamber; Each plane nut comprises the flat thread portion of engaging adaptation with the driving threaded portion of paw in corresponding a set of paw assembly; Each plane nut drives its flat thread portion reciprocating rotation, so drive paw in corresponding a set of 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.(2) the present invention adopts two casing pressure claw assemblies to be clamped on same cable, has the effect of dual fail-safe, in use goes wrong even if wherein a set of, also has its service behaviour of another set of guarantee.
Accompanying drawing explanation
Fig. 1 is a kind of perspective view of the first structure of the present invention;
A kind of front view that Fig. 2 is gold utensil shown in Fig. 1;
Fig. 3 partly cuts open structural representation for the one of gold utensil shown in Fig. 1;
A kind of explosive view that Fig. 4 is gold utensil shown in Fig. 1;
Fig. 5 is a kind of perspective view of the second structure of the present invention;
A kind of front view that Fig. 6 is gold utensil shown in Fig. 5;
Fig. 7 partly cuts open structural representation for the one of gold utensil shown in Fig. 5.
Embodiment
(embodiment 1)
The present embodiment is a kind of overhead transmission line splicing fitting, sees shown in Fig. 1 to Fig. 4, comprises a core pipe 2, two casing pressure claw assembly 3, two plane nuts 4 and two cover crimp assemblies.
The tube wall of core pipe is provided with six 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.In the present embodiment, six radial spacing holes are divided into two groups, and three radial spacing holes in each group are used for and corresponding a set of paw assembly adaptation.
Each cover crimp assemblies is used for and corresponding a set of paw assembly adaptation, and each cover crimp assemblies includes three crimps 1; 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 each post plate axially extends along core pipe, and 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 three for installing the anticreep chute 24 of 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.
In concrete practice, also two crimps axially adjacent along core pipe can be made of one part, then two cover crimp assemblies in the present embodiment just unite two into one and become a set of crimp assemblies.
Each casing pressure claw assembly comprises for being combined to form three paws 5 in clamp hole with crimp; 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 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, in each casing pressure claw assembly, the quantity of 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.
Two plane nut rotations are arranged in core pipe tube chamber, and are positioned at the both sides of annular gear platform; Each plane nut comprises the fastening part 42 of to engage adaptive flat thread portion 41 with the driving threaded portion of paw in corresponding a set of paw assembly and being positioned at plane nut center: the side that each plane nut adjoins paw assembly arranges flat thread portion, and another side of each plane nut and core pipe gear platform slide adjacent; The periphery wall of each 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. 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.
In the present embodiment, the fastening part of each plane 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.
Each plane nut is in reciprocating rotation, drive its flat thread portion reciprocating rotation, and then by driving the paw in corresponding a set of paw assembly to the driving threaded portion of its engagement adaptation, 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 paw in corresponding a set of paw assembly be close to each other towards core tube hub or away from, thus unclamp or clamp the electric power cable being arranged in 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.In addition, because crimp is arranged on core pipe by sliding or crimping mode, 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.Finally, the present invention, owing to have employed two casing pressure claw assemblies for clamping electric power cable, also has the technique effect of dual fail-safe.
(embodiment 2)
The present embodiment is substantially identical with embodiment 1, and difference is: see shown in Fig. 5 to Fig. 7, 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 overhead transmission line splicing fitting, is characterized in that: comprise a core pipe, two casing pressure claw assemblies, two plane nuts and at least one crimp; The tube wall of core pipe is provided with radial spacing slide opening; 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; Each casing pressure claw 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; Each plane nut rotation is arranged in core pipe tube chamber; Each plane nut comprises the flat thread portion of engaging adaptation with the driving threaded portion of paw in corresponding a set of paw assembly; Each plane nut drives its flat thread portion reciprocating rotation, so drive paw in corresponding a set of paw assembly towards core tube hub near or away from, thus unclamp or clamp the electric power cable being arranged in clamp hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610096532.9A CN105552583A (en) | 2016-01-15 | 2016-01-15 | Continuing metal ware of overhead line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610096532.9A CN105552583A (en) | 2016-01-15 | 2016-01-15 | Continuing metal ware of overhead line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105552583A true CN105552583A (en) | 2016-05-04 |
Family
ID=55831627
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610096532.9A Withdrawn CN105552583A (en) | 2016-01-15 | 2016-01-15 | Continuing metal ware of overhead line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105552583A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113224553A (en) * | 2021-05-25 | 2021-08-06 | 孙优军 | Cable conductive clamp and using method thereof |
Citations (4)
| 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 |
-
2016
- 2016-01-15 CN CN201610096532.9A patent/CN105552583A/en not_active Withdrawn
Patent Citations (4)
| 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 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113224553A (en) * | 2021-05-25 | 2021-08-06 | 孙优军 | Cable conductive clamp and using method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20160504 |
|
| WW01 | Invention patent application withdrawn after publication |