CN105846131A - Power fitting used for overhead line - Google Patents

Power fitting used for overhead line Download PDF

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Publication number
CN105846131A
CN105846131A CN201610285990.7A CN201610285990A CN105846131A CN 105846131 A CN105846131 A CN 105846131A CN 201610285990 A CN201610285990 A CN 201610285990A CN 105846131 A CN105846131 A CN 105846131A
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CN
China
Prior art keywords
core
core pipe
heat
plate portion
crimp
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Withdrawn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
CN201610285990.7A
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Chinese (zh)
Inventor
申俊
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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 CN201610285990.7A priority Critical patent/CN105846131A/en
Publication of CN105846131A publication Critical patent/CN105846131A/en
Withdrawn legal-status Critical Current

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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
    • 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
    • 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
    • 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
    • H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member

Landscapes

  • Laying Of Electric Cables Or Lines Outside (AREA)

Abstract

The invention discloses a piece of power fitting used for an overhead line. The power fitting includes a core pipe, two sets of pressing claw assemblies and two planar nuts. A crimping boss is arranged on the inner peripheral wall of the core pipe. Radial limiting slide holes are arranged in the pipe wall of the core pipe. A blocking table is arranged on the inner peripheral wall of the core pipe. Each pressing claw assembly includes a plurality of pressing claws. The two planar nuts are both arranged in the pipe cavity of the pipe core in a rotary manner and arranged on two sides of the blocking table. Each planar nut includes a fastening part and a planar thread part fitting with different pressing claws of the corresponding pressing claw assembly. At least one crimping piece is provided with a mounting screw hole provided with a built-in temperature sensor. The power fitting has a real time temperature monitoring function.

Description

Overhead transmission line electric armour clamp
Technical field
The invention belongs to overhead transmission line electric armour clamp technical field, be specifically related to a kind of overhead transmission line electric armour clamp.
Background technology
In the construction of overhead power line, when cable Xu Zuo branch or when continuing, need two with power circuit splicing fitting Root insulated conductor links together.Power circuit splicing fitting has simple installation, low cost, safe and reliable non-maintaining spy Point.Without blocking leader cable, can do cable branch without peelling off the insulating barrier of cable, joint is completely insulated, can livewire work, On-the-spot branch can be made in cable optional position；It is not required to use termination rack, coupling box；And joint warp resistance, shockproof, waterproof, anti- Corrosion and ageing；Using insulating power circuit splicing fitting to do cable branch, comprehensive benefit is obvious, and cost performance is better than conventional tradition Connected mode.
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 conventional powerline 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 pine Dynamic.
Summary of the invention
It is an object of the invention to provide and a kind of there is preferable anti-loosening effect and there is the built on stilts of real time temperature control function Circuit electric armour clamp.
The technical scheme realizing the object of the invention is: a kind of overhead transmission line electric armour clamp, it is characterised in that: include one Core pipe, two casing pressure claw assemblies, two plane nuts 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 anticreep connecting portion；Crimp is arranged on core pipe by anticreep connecting portion is dismountable, pressing plate portion It is positioned at outside core 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 the inwall of top plate portion and the driving threaded portion being arranged on 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 clamp clamping electric power cable Hole；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；Respectively Plane nut rotation is arranged in core pipe tube chamber；Each plane nut includes and the driving screw thread of paw in corresponding a set of paw assembly The flat thread portion that portion's engagement is adaptive；The most spacing slide opening be positioned at core pipe axially on middle part, the radially radial section of spacing hole Shape is I-shaped, and the radial cross-sectional shape in guide runner portion is adaptive with radial direction spacing hole I-shaped；Top plate portion is along core pipe Axially extending, pressing plate portion is axially extending along core pipe；It is provided with vertically on the periphery wall of core pipe for installing the anti-of location crimp Trying to shirk responsibility groove, anticreep chute includes two mounting grooves；Anticreep connecting portion is two posts protruding inwardly from formation from pressing plate portion two side ends Plate；Each post plate is arranged in a corresponding mounting groove；At least one crimp is provided with the installation screw of built-in temperature sensing device； Temperature sensing device include having the metal shell of storage tank, the temperature sensor being arranged in storage tank, for temperature is passed Spring that sensor is crimped in storage tank and the screwed pipe plug for limit spring；
Metal shell is provided with heat conduction boss close to one end of core tube hub axis, and metal shell is away from one end of core tube hub axis It is provided with interior hexagonal and twists groove；The periphery wall of metal shell is provided with the external screw thread adaptive with installation screw, the internal perisporium of storage tank It is provided with internal threaded regions；Temperature sensor includes the heat-conducting block using heat conductive insulating elastomeric material to make, is arranged in heat-conducting block U-shaped thermo-sensitive resistor, be arranged on heat-conducting block two connect electric mortiser post；Heat-conducting block back and forth can be slided in the storage tank of metal shell Dynamic；Heat-conducting block is connected on the diapire of storage tank close to one end of core tube hub axis；Two connect electric mortiser post and protrude and be arranged on and lead On the hot block other end away from core tube hub axis；Heat-conducting block is away from the outer wall of the other end of core tube hub axis and storage tank Enclosing formation cannelure between internal perisporium, spring is positioned in this cannelure and is set in heat-conducting block away from the one of core tube hub axis On end；Screwed pipe plug is provided with external screw thread district close to the periphery wall of one end of core tube hub axis, this external screw thread district and metal-back The internal threaded regions of body is adaptive；Screwed pipe plug is provided with outer-hexagonal away from the periphery wall of one end of core tube hub axis and twists portion；Spiral shell The center of pipe plug is provided with tube chamber；Screwed pipe plug is fixedly installed in cannelure by its external screw thread district；Spring is close to core pipe One end of central axis is connected on heat-conducting block, and spring is connected on screwed pipe plug away from the other end of core tube hub axis；Lead Two on hot block connect in the tube chamber that electric mortiser post is positioned at screwed pipe plug.
The present invention has positive effect: (1) present invention drives paw clamping electric power cable by flat thread portion, and by passing The bolt assembly clamping electric power cable of system is compared, and can apply bigger pressure, and have excellent anti-loosening effect, be effectively ensured The reliability of long-term work.(2) present invention uses two casing pressure claw assemblies to be clamped on same cable, has the effect of dual fail-safe Really, in use go wrong even if the most a set of, its service behaviour of the most another set of guarantee.(3) crimp due at least one Part is provided with the installation screw of built-in temperature sensing device, therefore the present invention also has real time temperature control function.
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 that the one of the second structure of the present invention partly cuts open structural representation；
Fig. 6 is the close-up schematic view in Fig. 5 at B；
Fig. 7 is that the one of the third structure of the present invention partly cuts open structural representation.
Detailed description of the invention
(embodiment 1)
The present embodiment is a kind of overhead transmission line electric armour clamp, as shown in Fig. 1 to Fig. 4, overlaps paw group including a core pipe 2, two 3, two plane nuts of part 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 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 groups, In each group three radially spacing hole 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； 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；Anticreep is even The portion of connecing 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 direction of each post plate Cross sectional shape 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 includes Two radial sections are the mounting grooves 241 of L-shaped；In the present embodiment, two adjacent anticreep chutes are oppositely arranged；Each mounting groove and A corresponding post plate is adaptive；The anticreep connecting portion of each crimp slips into along core pipe axial direction from a side of anticreep chute accordingly In one anticreep chute；In concrete practice, anticreep connecting portion can select other shape, as long as making the anticreep of crimp Connecting portion can not remove along core caliber to from anticreep chute；In concrete practice, it is possible to select the mode of clamping to install Fixing crimp；Multiple draw-in groove is such as set on the periphery wall of core pipe, each pressing plate arranges the clamping protruded inwardly from and supports Post or clamping gripper shoe, directly snap in each clamping support column or clamping gripper shoe in a corresponding draw-in groove, also can prevent clamping Part removes core pipe along core pipe radial direction, and 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 board Portion 51, from the guide runner portion 52 of the inwardly projecting formation of the inwall of top plate portion and the driving threaded portion that is arranged on guide runner 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 folder Groove 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 Insert 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 is radially Under the guide and limit effect of spacing slide opening, the radial direction along core pipe reciprocatingly slides；The radial cross-sectional shape in each guide runner portion is and footpath To adaptive I-shaped of spacing hole.
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 A clamp hole 6 is formed with this arcuate groove clamping；Being filled with insulation oils and fats in clamp hole, each clamp hole is for one electric power of clamping Cable.The present embodiment forms three clamp holes altogether, for three electric power cables of clamping.In concrete practice, each crimp big Little can be different, the distance between arcuate groove and the core tube wall in the most each pressing plate portion is different, varies in size such that it is able to formed Clamp hole, 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 includes Engage the flat thread portion 41 of adaptation with the threaded portion that drives of paw in corresponding a set of paw assembly and be 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 One 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 is ring Shape, flat thread portion is provided with archimedean spiral groove, and the driving threaded portion of paw assembly is provided with and this Archimedian screw The thread groove that groove 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 wearing in each arcuate groove and each arc clip slot Thorn 7；Specifically, respectively puncture along core pipe radially protruding.The existence punctured, can not carried out at peeling insulating power cable Reason, 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 to pass through casting forming The integral piece made, each puncture is made when casting forming；In concrete practice, puncture may be used without alternate manner and makes；Example As being provided with multiple installation draw-in groove in each arcuate groove and each arc clip slot, then being inlaid in phase by the die-cut puncture sheet made Answering one to install in draw-in groove, puncture sheet and include installation portion and thorn blade, installation portion is inlaid in installation draw-in groove, and thorn blade then exposes Draw-in groove is installed and forms puncture.The benefit of this structure is to puncture sheet the material different with paw can be used to make, and especially selects With with treat that same material used by clamp cable is made, be 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 behaviour Make to use inner hexagon spanner；In concrete practice, described fastening part just can use other shape, the most square or in-line or prunus mume (sieb.) sieb.et zucc. Flower-shape, all can select.
Each plane nut, in reciprocating rotation, drives its flat thread portion reciprocating rotation, and then by engaging adaptation The threaded portion that drives 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 towards 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 particularly excellent, the reliability of long-term work is effectively ensured.Additionally, due to crimp is to be pacified by sliding or crimping mode It is contained on core pipe, can first cable be placed in the arc clip slot of each paw, more corresponding crimp is loaded corresponding anticreep In chute, corresponding electric power cable can be placed in clamp hole；This structure make clamp electric power cable easy and simple to handle easily OK.Finally, due to the fact that and have employed two casing pressure claw assemblies for clamping electric power cable, also there is the technique effect of dual fail-safe.
(embodiment 2)
The present embodiment and above-described embodiment 1 are essentially identical, and difference is: as shown in Fig. 5 and Fig. 6, at least one crimp 1 It is provided with the installation screw 15 extending radially through pressing plate portion along core pipe；This installation screw is fixed with a temperature sensing device 8.
Temperature sensing device 8 includes the metal shell 81 with storage tank 811 that metal material makes, is arranged on storage tank In temperature sensor 82, the spring 83 for temperature sensor is crimped on storage tank diapire, the spiral shell that is used for limit spring Pipe plug 84.
Metal shell is provided with as puncturing the heat conduction boss 813 used, metal-back close to one end 812 of core tube hub axis Body is provided with interior hexagonal away from one end 814 of core tube hub axis and twists groove 815；The periphery wall of metal shell is provided with and installs spiral shell The external screw thread 816 that hole is adaptive, the internal perisporium of storage tank is provided with internal threaded regions 817；Heat conduction boss is close to core from metal shell The sharp tooth boss formed is protruded in one end 812 of tube hub axis.
Temperature sensor includes using the heat-conducting block 821 that heat conductive insulating elastomeric material is made, the U-shaped being arranged in heat-conducting block Thermo-sensitive resistor 822, two be arranged on heat-conducting block connect electric mortiser post 823；Heat-conducting block can be reciprocal in the storage tank of metal shell Slide；Heat-conducting block is connected on the diapire of storage tank close to one end of core tube hub axis；Two connect electric mortiser post protrusion and are arranged on On the heat-conducting block other end away from core tube hub axis.
Heat-conducting block encloses formation annular between outer wall and the internal perisporium of storage tank away from the other end of core tube hub axis Groove 100, spring is positioned in this cannelure and is set on heat-conducting block one end away from core tube hub axis.
Screwed pipe plug is provided with external screw thread district 841 close to the periphery wall of one end of core tube hub axis, this external screw thread district and The internal threaded regions 817 of metal shell is adaptive；Screwed pipe plug is provided with outer-hexagonal away from the periphery wall of one end of core tube hub axis Twist portion 842；The center of screwed pipe plug is provided with tube chamber 843；Screwed pipe plug is fixedly installed on cannelure by its external screw thread district In.
Spring is connected on heat-conducting block close to one end of core tube hub axis, and spring is away from the other end of core tube hub axis It is connected on screwed pipe plug；On heat-conducting block two connect electric mortiser post and are positioned in the tube chamber 843 of screwed pipe plug.
This structure has the following advantages, owing to metal shell is easily deformed when extruding cable, and extrusion temperature sensor Heat-conducting block, if heat-conducting block does not has mobile space, then easily pressurized deformation damages；The present embodiment, can by arranging spring Heat-conducting block is crimped on the diapire of metal shell storage tank so that it is can correctly predict cable and junction, pressing plate pressing plate portion Real time temperature；Can also be when, after metal shell compressive deformation, reserving mobile space to heat-conducting block, thus prevent heat-conducting block by pressurized Damage；This structure has preferably Practical Performance.
In concrete practice, an installation screw can be respectively provided with on each crimp and one be built in this installation screw In temperature sensing device, for each cable and and the temperature of crimp junction monitor in real time, thus realize It is further intelligent that power network monitoring runs.
(embodiment 3)
The present embodiment and above-described embodiment 2 are essentially identical, and difference is: as shown in Figure 7, in the present embodiment outside crimp The most sheathed on perisporium being fixed with current transformer 9, this current transformer 9 includes toroidal inductive body 91 and intelligent control module 92；The monnolithic case of intelligent control module is also annular；Toroidal inductive body 91 and intelligent control module 92 are arranged side by side.
The internal perisporium of intelligent control module 92 is provided with inwardly projecting two and connects electric bushing (being not drawn on figure), respectively connects electricity Socket inserts corresponding one and connects in electric bushing, so that temperature sensor is connected with the middle control circuit in intelligent control module.
The present embodiment can be used in clamping three phase cables, and now the present embodiment entirety can be mutual as high pressure zero-sequence current Sensor uses, for detecting the existence of leakage current, to find leak current fault in time.
Obviously, the above embodiment of the present invention is only for clearly demonstrating example of the present invention, and is not right The restriction of embodiments of the present 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 these Belong to obvious change that the connotation of the present invention extended out or variation still falls within protection scope of the present invention.

Claims (1)

1. an overhead transmission line electric armour clamp, it is characterised in that: include a core pipe, two casing pressure claw assemblies, two plane spiral shells Mother 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 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 includes For forming the paw in clamp hole with crimp combination；Paw includes top plate portion, from the inwardly projecting formation of the inwall of top plate portion Guide runner portion and the driving threaded portion being arranged in guide runner portion；Top plate portion is positioned at outside core pipe, top plate portion and corresponding one The pressing plate portion clamping of individual crimp forms one for the clamp hole clamping electric power cable；Guide runner portion inserts on core pipe corresponding In one spacing slide opening of radial direction, threaded portion is driven to stretch in the tube chamber of core pipe；Each plane nut rotation is arranged on core pipe tube chamber In；Each plane nut includes engaging the flat thread portion of adaptation with the threaded portion that drives of paw in corresponding a set of paw assembly；Footpath To spacing slide opening be positioned at core pipe axially on middle part, radially the radial cross-sectional shape of spacing hole is I-shaped, guide runner portion Radial cross-sectional shape is adaptive with radial direction spacing hole I-shaped；Top plate portion is axially extending along core pipe, and pressing plate portion is axial along core pipe Extend；Being provided with the anticreep chute for installing location crimp on the periphery wall of core pipe vertically, anticreep chute includes two peaces Tankage；Anticreep connecting portion is two the post plates protruding inwardly from formation from pressing plate portion two side ends；Each post plate is arranged on a corresponding peace In tankage；At least one crimp is provided with the installation screw of built-in temperature sensing device；Temperature sensing device includes having accommodating The metal shell of groove, the temperature sensor being arranged in storage tank, for the spring that temperature sensor is crimped in storage tank And the screwed pipe plug for limit spring；
Metal shell is provided with heat conduction boss close to one end of core tube hub axis, and metal shell is away from one end of core tube hub axis It is provided with interior hexagonal and twists groove；The periphery wall of metal shell is provided with the external screw thread adaptive with installation screw, the internal perisporium of storage tank It is provided with internal threaded regions；Temperature sensor includes the heat-conducting block using heat conductive insulating elastomeric material to make, is arranged in heat-conducting block U-shaped thermo-sensitive resistor, be arranged on heat-conducting block two connect electric mortiser post；Heat-conducting block back and forth can be slided in the storage tank of metal shell Dynamic；Heat-conducting block is connected on the diapire of storage tank close to one end of core tube hub axis；Two connect electric mortiser post and protrude and be arranged on and lead On the hot block other end away from core tube hub axis；Heat-conducting block is away from the outer wall of the other end of core tube hub axis and storage tank Enclosing formation cannelure between internal perisporium, spring is positioned in this cannelure and is set in heat-conducting block away from the one of core tube hub axis On end；Screwed pipe plug is provided with external screw thread district close to the periphery wall of one end of core tube hub axis, this external screw thread district and metal-back The internal threaded regions of body is adaptive；Screwed pipe plug is provided with outer-hexagonal away from the periphery wall of one end of core tube hub axis and twists portion；Spiral shell The center of pipe plug is provided with tube chamber；Screwed pipe plug is fixedly installed in cannelure by its external screw thread district；Spring is close to core pipe One end of central axis is connected on heat-conducting block, and spring is connected on screwed pipe plug away from the other end of core tube hub axis；Lead Two on hot block connect in the tube chamber that electric mortiser post is positioned at screwed pipe plug.
CN201610285990.7A 2016-05-02 2016-05-02 Power fitting used for overhead line Withdrawn CN105846131A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610285990.7A CN105846131A (en) 2016-05-02 2016-05-02 Power fitting used for overhead line

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610285990.7A CN105846131A (en) 2016-05-02 2016-05-02 Power fitting used for overhead line

Publications (1)

Publication Number Publication Date
CN105846131A true CN105846131A (en) 2016-08-10

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610285990.7A Withdrawn CN105846131A (en) 2016-05-02 2016-05-02 Power fitting used for overhead line

Country Status (1)

Country Link
CN (1) CN105846131A (en)

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Application publication date: 20160810