CN105846172A - Improved electric power fitting used for overhead line - Google Patents

Improved electric power fitting used for overhead line Download PDF

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Publication number
CN105846172A
CN105846172A CN201610294245.9A CN201610294245A CN105846172A CN 105846172 A CN105846172 A CN 105846172A CN 201610294245 A CN201610294245 A CN 201610294245A CN 105846172 A CN105846172 A CN 105846172A
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CN
China
Prior art keywords
tube
core
heat
conducting block
core tube
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Withdrawn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
CN201610294245.9A
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Chinese (zh)
Inventor
钱才英
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Individual
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Individual
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Filing date
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Application filed by Individual filed Critical Individual
Priority to CN201610294245.9A priority Critical patent/CN105846172A/en
Publication of CN105846172A publication Critical patent/CN105846172A/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Withdrawn legal-status Critical Current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

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Clamps And Clips (AREA)

Abstract

The invention discloses an improved electric power fitting used for an overhead line. The improved electric power fitting comprises a base tube, a core tube, two sets of pressing claw components and two plane nuts. The internal circumferential wall of the base tube is provided with crimping bosses. The tube wall of the core tube is provided with radial limiting slide holes. The internal circumferential wall of the core tube is provided with a blocking stand. Each set of pressing claw component comprises multiple pressing claws. The two plane nuts are rotatably arranged in the tube cavity of the core tube. The two plane nuts are respectively arranged at the two sides of the blocking stand. Each plane nut comprises a fastening part and a plane thread part which is adaptive to each pressing claw of one corresponding set of pressing claw component. The base tube is provided with installing screw holes which penetrate through the wall body of the base tube along a radial direction. The base tube is provided with the installing screw holes which are internally provided with a temperature sensing device. The improved electric power fitting used for the overhead line has an excellent anti-loosening effect.

Description

Overhead transmission line modified model 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 modified model electric armour clamp.
Background technology
In the construction of overhead power line, when cable Xu Zuo branch or when continuing, need to be linked together by two insulated conductors with power circuit splicing fitting.Power circuit splicing fitting has simple installation, low cost, 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, 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, anticorrosion is aging；Using insulating power circuit splicing fitting to do cable branch, comprehensive benefit is obvious, and cost performance is better than conventional conventional coupling arrangement.
Traditional power circuit splicing fitting is mainly made up of enhancing housing, piercing blade, waterproof silicone grease, high-strength bolt and nut, and the preferred torque nut of its nut, its structure is the most ripe, also obtains relatively broad application.But conventional electric power circuit splicing fitting there is also weak point, the pressure of clamp relies on the pressure of plain bolt assembly, and its fastness is poor, easily loosens.
Summary of the invention
It is an object of the invention to provide a kind of overhead transmission line modified model electric armour clamp with real time temperature control function.
The technical scheme realizing the object of the invention is: a kind of overhead transmission line modified model electric armour clamp, including a base tube, core pipe, two casing pressure claw assemblies and two plane nuts；The internal perisporium of base tube is provided with crimping boss, and the tube wall of core pipe is provided with radially spacing slide opening, and the internal perisporium of core pipe is provided with gear platform；Each casing pressure claw assembly includes that multiple paw, each paw include pressing plate portion, the guide runner portion of the inwardly projecting formation of inwall from pressing plate portion and the driving threaded portion being arranged on guide runner portion；Each pressing plate portion is positioned between base tube inwall and core tube wall, and each 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 pressing plate portion and a corresponding crimping boss clamping form a clamp hole；Two plane nuts all rotate and are arranged in core pipe tube chamber, the both sides of two plane nut separation gear platforms；The threaded portion that drives in each casing pressure claw assembly is respectively positioned on the corresponding plane nut side away from gear platform；Each plane nut includes fastening part and engages the flat thread portion of adaptation with the threaded portion that drives of each paw in corresponding a set of paw assembly；Core pipe and base tube are arranged concentrically and are positioned at base tube tube chamber；Each radially spacing slide opening all extends radially through core tube wall along core pipe；The radial cross-sectional shape of each radially spacing hole is I-shaped, and the radial cross-sectional shape in each guide runner portion is adaptive with radial direction spacing hole I-shaped；
Base tube is provided with the installation screw of built-in temperature sensing device；Temperature sensing device include the metal shell with storage tank that metal material makes, the temperature sensor being arranged in storage tank, for spring temperature sensor being crimped on storage tank diapire, the screwed pipe plug that is used for limit spring；Metal shell is provided with heat conduction boss close to one end of core tube hub axis, and metal shell is provided with interior hexagonal away from one end of core tube hub axis and twists groove；The periphery wall of metal shell is provided with the external screw thread adaptive with installation screw, and the internal perisporium of storage tank is provided with internal threaded regions；Temperature sensor include the heat-conducting block using heat conductive insulating elastomeric material to make, the U-shaped thermo-sensitive resistor being arranged in heat-conducting block, be arranged on heat-conducting block two connect electric mortiser post；Heat-conducting block can reciprocatingly slide in the storage tank of metal shell；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 the heat-conducting block other end away from core tube hub axis；Heat-conducting block encloses formation cannelure between external diameter and the internal perisporium of storage tank away from the other end of core tube hub axis, and 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 close to the periphery wall of one end of core tube hub axis, and the internal threaded regions of this external screw thread district and 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 and twists portion；The center of screwed pipe plug is provided with tube chamber；Screwed pipe plug is fixedly installed in cannelure by its external screw thread district；Spring is connected on heat-conducting block close to one end of core tube hub axis, and spring is connected on screwed pipe plug away from the other end of core tube hub axis；Two on heat-conducting block connect in the tube chamber that electric mortiser post is positioned at screwed pipe plug.
Heat conduction boss is to protrude the sharp tooth boss formed close to one end of core tube hub axis from metal shell.
The present invention has positive effect: (1) present invention drives paw clamping electric power cable by flat thread portion, compare with by traditional bolt assembly clamping electric power cable, bigger pressure can be applied, and there is excellent anti-loosening effect, the reliability of long-term work is effectively ensured.(2) present invention is by being arranged on cable clamping the center of power circuit splicing fitting, and its gravity centre distribution is relatively reasonable, when on the overhead power line of high-altitude, is conducive to alleviating vibration.(3) present invention uses two casing pressure claw assemblies to be clamped on same cable, has the effect of dual fail-safe, in use goes wrong even if the most a set of, its service behaviour of the most another set of guarantee.(4) extend radially through the installation screw of pressure pipe portion wall body along base tube owing to base tube is provided with, installation screw is fixed with temperature sensing device；So 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 a kind of explosive view when removing base tube of the gold utensil shown in Fig. 4；
Fig. 6 is that the one of the second structure of the present invention partly cuts open structural representation；
Fig. 7 is the close-up schematic view in Fig. 6 at B；
Fig. 8 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 modified model electric armour clamp, as shown in Fig. 1 to Fig. 5, including 1, core pipe 2, two casing pressure claw assembly 3 of a base tube and two plane nuts 4；The internal perisporium of base tube is axially arranged with multiple crimping boss 11 along base tube, and the inwall of each crimping boss is provided with arcuate groove 111；The internal perisporium of base tube is axially additionally provided with multiple positioning runner 12 along base tube；Core pipe and base tube are arranged concentrically and are positioned at base tube tube chamber；The periphery wall of core pipe is provided with multiple support flange 21 extended along core pipe radially protruding, and each outboard end supporting flange is positioned in a corresponding positioning runner, thus core pipe is supported in the tube chamber being positioned at base tube；The tube wall of core pipe is provided with the spacing slide opening of multiple radial direction 22, and each radially spacing slide opening all extends radially through core tube wall along core pipe；The internal perisporium of core pipe is provided with the annular gear platform 23 of inwardly projecting formation.
Each casing pressure claw assembly includes multiple paw 5, and in the most each casing pressure claw assembly, the quantity of paw can select between one to four as required, and the quantity of the most spacing slide opening is then identical with the total quantity of paw, and the present embodiment selects four；Every casing pressure claw assembly and a corresponding plane nut are adaptive；Each paw includes pressing plate portion 51, the guide runner portion 52 of the inwardly projecting formation of inwall from pressing plate portion and the driving threaded portion 53 being arranged on guide runner portion；Pressing plate portion is axially extending along base tube, and guide runner portion radially extends along core pipe；The outer wall in each paw pressing plate portion is provided with arc clip slot 511；Each pressing plate portion is positioned between base tube inwall and core tube wall, and each 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.
In the present embodiment, the radial cross-sectional shape of each radially spacing hole is I-shaped, and the radial cross-sectional shape in each guide runner portion is adaptive with radial direction spacing hole I-shaped；In concrete practice, radially the radial cross-sectional shape in spacing hole and guide runner portion also can be selected for other shape, such as circle, rectangle, square, as long as having radially-directed and limit effect.
In the present embodiment, the arcuate groove of a corresponding crimping boss is just arranged by the arc clip slot of each paw, and the arcuate groove clamping of the arc clip slot of this paw and this crimping boss forms a clamp hole 6, and each clamp hole is for one electric power cable of clamping.In the present embodiment, the size in each clamp hole can be different, for clamping the cable of different thicknesses.
Two plane nuts all rotate and are arranged in core pipe tube chamber, the both sides of two plane nut separation annular gear platforms；The periphery wall of each plane nut and core inside pipe wall slide adjacent, and the center of each plane nut is provided with fastening part 42；One side of each plane nut and annular gear platform slide adjacent, and another side is provided with and engages the flat thread portion 41 of adaptation with the threaded portion that drives of each paw in corresponding a set of paw assembly；Flat thread portion is annular, and flat thread portion is provided with archimedean spiral groove；The thread groove that driving threaded portion is provided with and this archimedean spiral groove is adaptive of each paw assembly, 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 7 in each arcuate groove and each arc clip slot；Specifically, respectively puncture along core pipe radially protruding.The existence punctured, can not carry out peeling process to insulating power cable, 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 crimping boss and base tube are the integral pieces made by casting forming, and each puncture is made when casting forming；In concrete practice, puncture may be used without alternate manner and makes；Such as in each arcuate groove and each arc clip slot, it is 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, puncturing sheet include installation portion and sting blade, installation portion is inlaid in installation draw-in groove, and thorn blade then exposes installation draw-in groove 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 and treats that same material used by clamp cable is made, being conducive to obtaining preferable electric property.
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 uses 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.
The present embodiment can form four clamp holes, is especially suited as branch connection gold utensil and uses.
In the present embodiment, each plane nut is when reciprocating rotation, drive its flat thread portion reciprocating rotation, and then drive each paw in corresponding a set of paw assembly to move by the driving threaded portion adaptive to the engagement of this flat thread portion, owing to each paw radial direction only along core pipe under the guide and limit effect of radially spacing slide opening moves back and forth, so that in each casing pressure claw assembly the move mode of paw be close to each other towards core tube hub or away from, thus unclamp or clamp the electric power cable being positioned in each clamp hole.
The present embodiment gravity centre distribution is relatively reasonable, when on the overhead power line of high-altitude, is conducive to alleviating vibration；It addition, the present embodiment drives paw clamping electric power cable by flat thread portion, compare with by traditional bolt assembly clamping electric power cable, particularly excellent in anti-loosening effect, the reliability of long-term work is effectively ensured.It addition, the present embodiment is by using same cable two casing pressure claw assemblies to clamp, 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.
(embodiment 2)
The present embodiment and embodiment 1 are essentially identical, and difference is: as shown in Fig. 6 and Fig. 7, and base tube 1 is provided with the installation screw 15 extending radially through base tube wall body；This installation screw is fixed with a temperature sensing device 8.
Temperature sensing device 8 include the metal shell 81 with storage tank 811 that metal material makes, the temperature sensor 82 being arranged in storage tank, for the spring 83 temperature sensor being crimped on storage tank diapire, the screwed pipe plug 84 that is used for limit spring.
Metal shell is provided with as puncturing the heat conduction boss 813 used close to one end 812 of core tube hub axis, and metal shell 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 the external screw thread 816 adaptive with installation screw, and the internal perisporium of storage tank is provided with internal threaded regions 817；Heat conduction boss is to protrude the sharp tooth boss formed close to one end 812 of core tube hub axis from metal shell.
Temperature sensor include the heat-conducting block 821 using heat conductive insulating elastomeric material to make, the U-shaped thermo-sensitive resistor 822 being arranged in heat-conducting block, be arranged on heat-conducting block two connect electric mortiser post 823；Heat-conducting block can reciprocatingly slide in the storage tank of metal shell；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 the heat-conducting block other end away from core tube hub axis；
Heat-conducting block encloses formation cannelure 100 between external diameter and the internal perisporium of storage tank away from the other end of core tube hub axis, 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, and the internal threaded regions 817 of this external screw thread district and 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 and twists portion 842；The center of screwed pipe plug is provided with tube chamber 843；Screwed pipe plug is fixedly installed in cannelure by its external screw thread district；
Spring is connected on heat-conducting block close to one end of core tube hub axis, and spring is connected on screwed pipe plug away from the other end of core tube hub axis；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, and owing to metal shell is easily deformed when extruding cable, the heat-conducting block of extrusion temperature sensor, if heat-conducting block does not has mobile space, then easily pressurized deformation damages；Heat-conducting block, by arranging spring, can be crimped on the diapire of metal shell storage tank by the present embodiment so that it is can correctly predict cable and the real time temperature of junction, pressing plate pressing plate portion；Can also be when, after metal shell compressive deformation, reserving mobile space to heat-conducting block, thus prevent heat-conducting block by fail in compression；This structure has preferably Practical Performance.
In concrete practice, multiple installation screw and temperature sensing device can be set on base tube, for each cable and and the temperature of base tube junction monitor in real time, thus realize that power network monitoring runs further intelligent.
(embodiment 3)
The present embodiment and embodiment 2 are essentially identical, and difference is: as shown in Figure 8, the most sheathed on the periphery wall of base tube in the present embodiment are fixed with current transformer 9, and 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), and each electrical connector socket inserts corresponding one and connects in electric bushing, so that temperature sensor is connected with the middle control circuit in intelligent control module.
When the quantity of the crimping boss in the present embodiment and paw all selects three, the present embodiment can form three clamp holes, for three phase cables of clamping, now the present embodiment entirety can use as high pressure zero sequence current mutual inductor, 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 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 without also cannot all of embodiment be given exhaustive.And the obvious change that these connotations belonging to the present invention are extended out or variation still fall within protection scope of the present invention.

Claims (1)

1. an overhead transmission line modified model electric armour clamp, it is characterised in that: include a base tube, core pipe, two Casing pressure claw assembly and two plane nuts；The internal perisporium of base tube is provided with crimping boss, and the tube wall of core pipe is provided with the most spacing Slide opening, the internal perisporium of core pipe is provided with gear platform；Each casing pressure claw assembly include multiple paw, each paw include pressing plate portion, from The guide runner portion of the inwardly projecting formation of inwall in pressing plate portion and the driving threaded portion being arranged in guide runner portion；Each pressing plate Portion is positioned between base tube inwall and core tube wall, and each 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 pressing plate portion and a corresponding crimping boss clamping form a clamp Hole；Two plane nuts all rotate and are arranged in core pipe tube chamber, the both sides of two plane nut separation gear platforms；Respectively overlap paw The threaded portion that drives in assembly is respectively positioned on the corresponding plane nut side away from gear platform；Each plane nut includes fastening part And engage the flat thread portion of adaptation with the threaded portion that drives of each paw in corresponding a set of paw assembly；Core pipe and base tube are same The heart arranges and is positioned at base tube tube chamber；Each radially spacing slide opening all extends radially through core tube wall along core pipe；Each the most spacing The radial cross-sectional shape in hole is I-shaped, and the radial cross-sectional shape in each guide runner portion is the I-shaped adaptive with radial direction spacing hole Shape；
Base tube is provided with the installation screw of built-in temperature sensing device；Temperature sensing device includes that what metal material made has appearance Put the metal shell of groove, the temperature sensor being arranged in storage tank, for temperature sensor being crimped on storage tank diapire On spring, for the screwed pipe plug of 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 the one of core tube hub axis End is provided with interior hexagonal and twists groove；The external screw thread that the periphery wall of metal shell is provided with and installation screw is adaptive, storage tank interior Perisporium is provided with internal threaded regions；Temperature sensor includes the heat-conducting block using heat conductive insulating elastomeric material to make, is arranged on and leads U-shaped thermo-sensitive resistor in hot block, two be arranged on heat-conducting block connect electric mortiser post；Heat-conducting block can housing at metal shell Groove reciprocatingly slides；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 Protrude and be arranged on the heat-conducting block other end away from core tube hub axis；Heat-conducting block is away from the other end of core tube hub axis Enclose formation cannelure between external diameter and the internal perisporium of storage tank, spring be positioned in this cannelure and be set in heat-conducting block away from On one end of core tube hub axis；Screwed pipe plug is provided with external screw thread district close to the periphery wall of one end of core tube hub axis, The internal threaded regions of this external screw thread district and metal shell is adaptive；On the screwed pipe plug periphery wall away from one end of core tube hub axis It is provided with outer-hexagonal and twists portion；The center of screwed pipe plug is provided with tube chamber；Screwed pipe plug is fixedly installed on by its external screw thread district In cannelure；Spring is connected on heat-conducting block close to one end of core tube hub axis, and spring is another away from core tube hub axis One end is connected on screwed pipe plug；Two on heat-conducting block connect in the tube chamber that electric mortiser post is positioned at screwed pipe plug.
CN201610294245.9A 2016-05-02 2016-05-02 Improved electric power fitting used for overhead line Withdrawn CN105846172A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610294245.9A CN105846172A (en) 2016-05-02 2016-05-02 Improved electric power fitting used for overhead line

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610294245.9A CN105846172A (en) 2016-05-02 2016-05-02 Improved electric power fitting used for overhead line

Publications (1)

Publication Number Publication Date
CN105846172A true CN105846172A (en) 2016-08-10

Family

ID=56592145

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610294245.9A Withdrawn CN105846172A (en) 2016-05-02 2016-05-02 Improved electric power fitting used for overhead line

Country Status (1)

Country Link
CN (1) CN105846172A (en)

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Application publication date: 20160810