CN105846139A - Splicing fitting for overhead line - Google Patents

Splicing fitting for overhead line Download PDF

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Publication number
CN105846139A
CN105846139A CN201610098537.5A CN201610098537A CN105846139A CN 105846139 A CN105846139 A CN 105846139A CN 201610098537 A CN201610098537 A CN 201610098537A CN 105846139 A CN105846139 A CN 105846139A
Authority
CN
China
Prior art keywords
core pipe
paw
plate portion
crimp
pressing plate
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Withdrawn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
CN201610098537.5A
Other languages
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 CN201610098537.5A priority Critical patent/CN105846139A/en
Publication of CN105846139A publication Critical patent/CN105846139A/en
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/06—Mounting, supporting or suspending transformers, reactors or choke coils not being of the signal type
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F38/00—Adaptations of transformers or inductances for specific applications or functions
    • H01F38/20—Instruments transformers
    • H01F38/22—Instruments transformers for single phase ac
    • H01F38/28—Current transformers
    • H01F38/30—Constructions
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
    • H01R11/01—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts characterised by the form or arrangement of the conductive interconnection between the connecting locations
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
    • H01R11/03—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts characterised by the relationship between the connecting locations
    • H01R11/09—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts characterised by the relationship between the connecting locations the connecting locations being identical
    • 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
    • H01R4/2404—Connections using contact members penetrating or cutting insulation or cable strands the contact members having teeth, prongs, pins or needles penetrating the insulation
    • H01R4/2408—Connections using contact members penetrating or cutting insulation or cable strands the contact members having teeth, prongs, pins or needles penetrating the insulation actuated by clamping screws
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F38/00—Adaptations of transformers or inductances for specific applications or functions
    • H01F38/20—Instruments transformers
    • H01F38/22—Instruments transformers for single phase ac
    • H01F38/28—Current transformers
    • H01F38/30—Constructions
    • H01F2038/305—Constructions with toroidal magnetic core

Abstract

The invention discloses a splicing fitting for an overhead line, and the splicing fitting comprises a core tube, two pressure jaw assembly sets and two flat nuts. The inner circumferential wall of the core tube is provided with crimping bosses, radial limit slide holes are disposed in the wall of the core tube, and a blocking table is disposed on the inner circumferential wall of the core tube. Each pressure jaw assembly set comprises a plurality of pressure jaws. The two flat nuts are both disposed in a cavity of the core tube rotatably and respectively disposed at two sides of the blocking table. Each flat nut comprises a fastening portion and flat thread portions matching the pressure jaws in the corresponding pressure jaw assembly set. Each flat nut drives the flat thread portions to rotate in a reciprocating manner, thus driving the pressure jaws in the corresponding pressure jaw assembly set to stay close to or far from one another toward the center of the core tube. The invention has an excellent anti-loosening effect.

Description

Overhead transmission line splicing fitting
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, needing will with power circuit splicing fitting Two insulated conductors link together.Power circuit splicing fitting has a simple installation, and low cost is safe and reliable non-maintaining Feature.Without blocking leader cable, can do cable branch without peelling off the insulating barrier of cable, joint is completely insulated, can Livewire work, can make on-the-spot branch in cable optional position；It is not required to use termination rack, coupling box；And joint warp resistance, Shockproof, waterproof, anticorrosion is aging；Using insulating power circuit splicing fitting to do cable branch, comprehensive benefit is obvious, property The conventional coupling arrangement that valency is more conventional than being better than.
Traditional power circuit splicing fitting is mainly by strengthening housing, piercing blade, waterproof silicone grease, high-strength bolt and spiral shell Female composition, the preferred torque nut of its nut, its structure is the most ripe, also obtains relatively broad application.But tradition electricity Line of force road splicing fitting there is also weak point, and the pressure of clamp relies on the pressure of plain bolt assembly, and its fastness is poor, Easily loosen.
Summary of the invention
It is an object of the invention to provide one and there is preferable anti-loosening effect, installation fastness is effectively ensured, stable and reliable for performance Overhead transmission line splicing fitting.
The technical scheme realizing the object of the invention is: a kind of overhead transmission line splicing fitting, including a core pipe, two casing pressures Claw assembly, two plane nuts and at least one crimp；The tube wall of core pipe is provided with radially spacing slide opening；Crimp sets There are 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 core Outside pipe；Each casing pressure claw assembly includes the paw for forming clamp hole with crimp combination；Paw include top plate portion, from The guide runner portion of the inwardly projecting formation of inwall of top plate portion and the driving threaded portion being arranged in guide runner portion；Top plate portion Being positioned at outside core pipe, the pressing plate portion clamping of top plate portion and a corresponding crimp forms one for the folder clamping electric power cable String holes；Guide runner portion inserts on core pipe in a corresponding spacing slide opening of radial direction, drives threaded portion to stretch to the tube chamber of core pipe In；Each plane nut rotation is arranged in core pipe tube chamber；Each plane nut includes and paw in corresponding a set of paw assembly Drive the flat thread portion that threaded portion engagement is adaptive；The most spacing slide opening all extends radially through core tube wall along core pipe；Guide Slide section radially extends along core pipe；Each paw radial direction along core pipe under the guide and limit effect of radially spacing slide opening is back and forth slided Dynamic；The pressing plate portion of a corresponding crimp is just arranged by each radially spacing slide opening；The outer wall of paw top plate portion is provided with arc Clip slot；The inwall in pressing plate portion is provided with arcuate groove；The arc clip slot of paw top plate portion is just to a corresponding crimp pressing plate portion Arcuate groove is arranged, and this arc clip slot and this arcuate groove clamping form a clamp hole；Each plane nut drives its flat thread Portion's reciprocating rotation, so drive paw in corresponding a set of paw assembly towards core tube hub closer or far from, thus unclamp Or clamping is positioned at the electric power cable in clamp hole.
The present invention has positive effect: (1) present invention drives paw clamping electric power cable by flat thread portion, and logical Cross traditional bolt assembly clamping electric power cable to compare, bigger pressure can be applied, and there is excellent anti-loosening effect, The reliability of long-term work is effectively ensured.(2) present invention uses two casing pressure claw assemblies to be clamped on same cable, tool There is the effect of dual fail-safe, in use go wrong even if the most a set of, its service behaviour of the most another set of guarantee.
Accompanying drawing explanation
Fig. 1 is a kind of perspective view of the first structure of the present invention；
Fig. 2 is a kind of front view of gold utensil shown in Fig. 1；
Fig. 3 is that shown in Fig. 1, the one of gold utensil partly cuts open structural representation；
Fig. 4 is a kind of explosive view of gold utensil shown in Fig. 1；
Fig. 5 is a kind of perspective view of the second structure of the present invention；
Fig. 6 is a kind of front view of gold utensil shown in Fig. 5；
Fig. 7 is that shown in Fig. 5, the one of gold utensil partly cuts open structural representation.
Detailed description of the invention
(embodiment 1)
The present embodiment is a kind of overhead transmission line splicing fitting, as shown in Fig. 1 to Fig. 4, including a core pipe 2, two set 3, two plane nuts of paw assembly 4 and two set crimp assemblies.
The tube wall of core pipe is provided with six spacing slide openings of radial direction 22, and each radially spacing slide opening all extends radially through core pipe along core pipe Tube wall；Each radially spacing slide opening be positioned at core pipe axially on middle part, the radial cross-sectional shape of each radially spacing hole is I-shaped； The internal perisporium of core pipe is provided with the annular gear platform 23 of inwardly projecting formation.In the present embodiment, six radial direction spacing holes are divided into two Group, the radially spacing hole of three in each group is for adaptive with corresponding a set of paw assembly.
Each set crimp assemblies is for adaptive with corresponding a set of paw assembly, and each set crimp assemblies all 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 On；Pressing plate portion 11 is axially extending along core pipe, and the inwall in pressing plate portion is provided with arcuate groove 13, and the periphery wall in pressing plate portion is circular arc Shape；Anticreep connecting portion is two the post plates protruding inwardly from formation from pressing plate portion two side ends, and each post plate is axially extending along core pipe, The radial cross-sectional shape of each post plate is L-shaped；In the present embodiment, two L-shaped post plates are oppositely arranged；
Three it are provided with vertically for the anticreep chute 24 installing location crimp on the periphery wall of core pipe；Each anticreep chute bag Include the mounting groove 241 that two radial sections are L-shaped；In the present embodiment, two adjacent anticreep chutes are oppositely arranged；Respectively Mounting groove and a corresponding post plate are adaptive；The anticreep connecting portion of each crimp along core pipe axial direction from the side of anticreep chute End slips in a corresponding anticreep chute；In concrete practice, anticreep connecting portion can select other shape, as long as making The anticreep connecting portion obtaining crimp can not remove along core caliber to from anticreep chute；In concrete practice, it is possible to choosing By the mode of clamping, fixing crimp is installed；Multiple draw-in groove is such as set on the periphery wall of core pipe, each pressing plate is arranged The clamping support column protruded inwardly from or clamping gripper shoe, directly snap in corresponding one by each clamping support column or clamping gripper shoe In draw-in groove, also can prevent shackle member from removing core pipe along core pipe radial direction, this structure is also feasible.
The inwall of a corresponding crimp is just arranged by each radially spacing slide opening.
In concrete practice, also two crimps axially adjacent along core pipe can be made of one part, then in the present embodiment Two set crimp assemblies just unite two into one and become a set of crimp assemblies.
Each casing pressure claw assembly includes three paws 5 for forming clamp hole with crimp combination；Each paw includes top plate portion 51, from the guide runner portion 52 of the inwardly projecting formation of the inwall of top plate portion and the driving screw thread that is arranged on guide runner portion Portion 53；Top plate portion is axially extending along core pipe, and guide runner portion radially extends along core pipe；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；Respectively Guide runner portion inserts on core pipe in a corresponding spacing slide opening of radial direction, in each tube chamber driving threaded portion to stretch to core pipe； Each paw radial direction along core pipe under the guide and limit effect of radially spacing slide opening reciprocatingly slides；The radial direction in each guide runner portion Cross sectional shape is adaptive with radial direction spacing hole I-shaped.
In the present embodiment, crimp is identical with the quantity of paw, in concrete practice, and the number of paw in each casing pressure claw assembly Amount can be to select between one to five, and the present embodiment selects three.
The arcuate groove in a corresponding crimp pressing plate portion is just arranged by the arc clip slot of each paw top plate portion, this arc clip slot and This arcuate groove clamping forms a clamp hole 6, and each clamp hole is for one electric power cable of clamping.The present embodiment forms three altogether Individual clamp hole, for three electric power cables of clamping.In concrete practice, the size of each crimp can be different, respectively Distance between arcuate groove and the core tube wall in pressing plate portion is different, such that it is able to form the clamp hole varied in size, is used for pressing from both sides The cable of tight 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 include with In corresponding a set of paw assembly, the threaded portion that drives of paw is engaged adaptive flat thread portion 41 and is positioned in plane nut Fastening part 42 at the heart；Each plane nut adjoins the flat thread portion that arranges on a side of paw assembly, each plane nut Another side and core pipe gear platform slide adjacent；The periphery wall of each plane nut and core inside pipe wall slide adjacent；Flat thread portion For annular, flat thread portion is provided with archimedean spiral groove, and the driving threaded portion of paw assembly is provided with and this A Ji meter The thread groove that moral helicla flute is adaptive, each side driving threaded portion to be arranged on guide runner portion, place adjacent flat nut.
The present embodiment, in order to connect electricity on insulating power cable, is also provided with multiple puncture in each arcuate groove and each arc clip slot 7；Specifically, respectively puncture along core pipe radially protruding.The existence punctured, can not shell insulating power cable Skin processes, and can effectively connect electricity.In concrete practice, if to be clamped is bare wire, then can be not provided with puncturing.
In the present embodiment, each paw is the integral piece made by casting forming, and each crimp is also by casting forming system The integral piece become, each puncture is made when casting forming；In concrete practice, puncture may be used without alternate manner and makes； In each arcuate groove and each arc clip slot, such as it is provided with multiple installation draw-in groove, then being embedded in by the die-cut puncture sheet made Installing in draw-in groove at corresponding one, puncture sheet and include installation portion and thorn blade, installation portion is inlaid in installation draw-in groove, stings sword Portion then exposes installation draw-in groove and forms puncture.The benefit of this structure is to puncture sheet to use the material system different with paw Become, especially select and treat that same material used by clamp cable is made, being conducive to obtaining preferable electric property.
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 twists operation Use inner hexagon spanner；In concrete practice, described fastening part just can use other shape, the most square or in-line or Quincunx, all can select.
Each plane nut, in reciprocating rotation, drives its flat thread portion reciprocating rotation, and then by engaging adaptation Threaded portion is driven to drive the paw in corresponding a set of paw assembly, owing to each paw is made at the guide and limit of radially spacing slide opening Under with, the radial direction only along core pipe moves back and forth so that in corresponding a set of paw assembly the move mode of paw be to Core tube hub close to each other or away from, thus unclamp or clamp the electric power cable being positioned in clamp hole.
When the present embodiment is on the overhead power line of high-altitude, be conducive to alleviating vibration；It addition, the present embodiment passes through plane Threaded portion drives paw clamping electric power cable, compares, in anti-loosening effect with by traditional bolt assembly clamping electric power cable On fruit particularly excellent, the reliability of long-term work is effectively ensured.Additionally, due to crimp is by sliding or crimping Mode is arranged on core pipe, can first cable be placed in the arc clip slot of each paw, more corresponding crimp is loaded phase In the anticreep chute answered, corresponding electric power cable can be placed in clamp hole；This structure makes to clamp electric power cable Easy to operation.Finally, due to the fact that and have employed two casing pressure claw assemblies for clamping electric power cable that also there is double guarantor The technique effect of danger.
(embodiment 2)
The present embodiment and embodiment 1 are essentially identical, and difference is: as shown in Fig. 5 to Fig. 7, each in the present embodiment The most sheathed on the periphery wall of crimp it is fixed with current transformer 8；This current transformer 8 includes annular matrix 81 and intelligence Control module 82, intelligent control module can include wireless transmit/receive units, when three electric power cables have leakage current, Annular matrix will induce secondary current, and intelligent control module is sent to this secondary current information by wireless transmit/receive units Distance host；Intelligent control module is arranged on and is enclosed, by annular matrix inwall, core tube wall and crimp outer wall, the district formed In territory, thus make full use of space, be conducive to the small-sized and integrated of entirety.
The present embodiment entirety can use as high pressure zero sequence current mutual inductor, for detecting the existence of leakage current, in time Find leak current fault.
Obviously, the above embodiment of the present invention is only for clearly demonstrating example of the present invention, and is not to this The restriction of the embodiment of invention.For those of ordinary skill in the field, the most also may be used To make other changes in different forms.Here without also cannot all of embodiment be given exhaustive.And this Belong to obvious change that the connotation of the present invention extended out a bit or variation still falls within protection scope of the present invention.

Claims (1)

1. an overhead transmission line splicing fitting, it is characterised in that: include a core pipe, two casing pressure claw assemblies, two Plane nut and at least one crimp；The tube wall of core pipe is provided with radially spacing slide opening；Crimp is provided with pressing plate portion and prevents De-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 set Paw assembly includes the paw for forming clamp hole with crimp combination；Paw includes top plate portion, from the inwall of top plate portion The guide runner portion of inwardly projecting formation and the driving threaded portion being arranged in guide runner portion；Top plate portion is positioned at outside core pipe Side, the pressing plate portion clamping of top plate portion and a corresponding crimp forms one for the clamp hole clamping electric power cable；Guide Slide section is inserted 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 includes and the driving threaded portion of paw in corresponding a set of paw assembly The flat thread portion that engagement is adaptive: the most spacing slide opening all extends radially through core tube wall along core pipe；Guide runner portion is along core Pipe radially extends: each paw radial direction along core pipe under the guide and limit effect of radially spacing slide opening reciprocatingly slides；Each radial direction The pressing plate portion of a corresponding crimp is just arranged by spacing slide opening；The outer wall of paw top plate portion is provided with arc clip slot；Pressing plate The inwall in portion is provided with arcuate groove；The arcuate groove in a corresponding crimp pressing plate portion is just set by the arc clip slot of paw top plate portion Putting, this arc clip slot and this arcuate groove clamping form a clamp hole；Each plane nut drives its flat thread portion reciprocating rotary Dynamic, so drive paw in corresponding a set of paw assembly towards core tube hub closer or far from, thus unclamp or clamp position Electric power cable in clamp hole.
CN201610098537.5A 2016-01-15 2016-01-15 Splicing fitting for overhead line Withdrawn CN105846139A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610098537.5A CN105846139A (en) 2016-01-15 2016-01-15 Splicing fitting for overhead line

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610098537.5A CN105846139A (en) 2016-01-15 2016-01-15 Splicing fitting for overhead line

Publications (1)

Publication Number Publication Date
CN105846139A true CN105846139A (en) 2016-08-10

Family

ID=56586936

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610098537.5A Withdrawn CN105846139A (en) 2016-01-15 2016-01-15 Splicing fitting for overhead line

Country Status (1)

Country Link
CN (1) CN105846139A (en)

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Application publication date: 20160810