CN105896114A - Power line clamp for overhead line - Google Patents

Power line clamp for overhead line Download PDF

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Publication number
CN105896114A
CN105896114A CN201610286270.2A CN201610286270A CN105896114A CN 105896114 A CN105896114 A CN 105896114A CN 201610286270 A CN201610286270 A CN 201610286270A CN 105896114 A CN105896114 A CN 105896114A
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CN
China
Prior art keywords
core
heat
core tube
conducting block
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Withdrawn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
CN201610286270.2A
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Chinese (zh)
Inventor
申清章
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Individual
Original Assignee
Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN201610286270.2A priority Critical patent/CN105896114A/en
Publication of CN105896114A publication Critical patent/CN105896114A/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Withdrawn legal-status Critical Current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 a power line clamp for an overhead line. The power line clamp comprises a base tube, a core tube, a set of pressing claw assembly and a plane nut, wherein the inner circumferential wall of the base tube is equipped with a pressing boss, a radial limiting slide hole is formed in the tube wall of the core tube, and the inner circumferential wall of the core tube is equipped with an annular blocking table; the pressing claw assembly comprises multiple pressing claws, and each pressing claw comprises a pressing plate part, a guide slide block part and a driving threaded part; the plane nut is disposed in the tube chamber of the core tube in a rotatable manner; the plane nut comprises a plane threaded part which is meshed and fit with the driving threaded part of each pressing claw; and an installation screw hole equipped with a built-in temperature sensing device is formed in the base tube. The power line clamp disclosed by the invention can effectively prevent loosening.

Description

Overhead transmission line power line 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 power line clamp.
Background technology
In the construction of overhead power line, when cable Xu Zuo branch or when continuing, needing will with overhead transmission line power line clamp Two insulated conductors link together.Overhead transmission line electric lines of force fixture 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 charged make Industry, 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 insulated over-head line power line clamp to do cable branch, comprehensive benefit is obvious, and cost performance is better than conventional Conventional coupling arrangement.
Traditional overhead transmission line power line clamp mainly by strengthen housing, piercing blade, waterproof silicone grease, high-strength bolt and Nut forms, and the preferred torque nut of its nut, its structure is the most ripe, also obtains relatively broad application.But conventional overhead Circuit power line clamp there is also weak point, and the pressure of clamp relies on the pressure of plain bolt assembly, and its fastness is poor, holds Easily loosen.
Summary of the invention
It is an object of the invention to provide a kind of overhead transmission line power line clamp with real time temperature control function.
The technical scheme realizing the object of the invention is: a kind of overhead transmission line power line clamp, it is characterised in that: include one Base tube, core pipe, a set of paw assembly and a plane nut；The internal perisporium of base tube is provided with crimping boss, the tube wall of core pipe Being provided with radially spacing slide opening, the internal perisporium of core pipe is provided with the annular gear platform of inwardly projecting formation；Paw assembly includes multiple Paw, each paw includes pressing plate portion, the guide runner portion of the inwardly projecting formation of inwall from pressing plate portion and is arranged on guide runner Driving threaded portion in portion；Each guide runner portion inserts on core pipe in a corresponding spacing slide opening of radial direction, and each driving threaded portion is stretched Entering to the tube chamber of core pipe, each pressing plate portion is positioned between base tube inwall and core tube wall；Each pressing plate portion and a corresponding crimping are convex Platform clamping forms a clamp hole；Plane nut rotation is arranged in core pipe tube chamber, and be positioned at each paw driving threaded portion and Between core pipe gear platform；Plane nut includes driving threaded portion engage the flat thread portion of adaptation and be positioned at plane spiral shell with each paw The fastening part of female center；The periphery wall of plane nut and core inside pipe wall slide adjacent；Plane nut adjoins a side of gear platform Slide adjacent with gear platform；Plane nut arranges flat thread portion away from another side of gear platform；Flat thread portion is annular, plane Threaded portion is provided with archimedean spiral groove, and the driving threaded portion of each paw assembly is provided with and this archimedean spiral groove is adaptive Thread groove, each side driving threaded portion to be arranged on guide runner portion, place adjacent flat nut；Base tube is provided with built-in temperature The installation screw of degree sensing device；Temperature sensing device includes that what metal material made has the metal shell of storage tank, setting Temperature sensor in storage tank, for the spring that temperature sensor is crimped on storage tank diapire, be used for limit spring Screwed pipe plug；Metal shell is provided with heat conduction boss close to one end of core tube hub axis, and metal shell is away from core tube hub axle One end of line 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, storage tank Internal perisporium be provided with internal threaded regions；Temperature sensor includes the heat-conducting block using heat conductive insulating elastomeric material to make, is arranged on U-shaped thermo-sensitive resistor in heat-conducting block, two be arranged on heat-conducting block connect electric mortiser post；Heat-conducting block can be at the storage tank of metal shell In reciprocatingly 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 and protrude It is arranged on the heat-conducting block other end away from core tube hub axis；Heat-conducting block away from the other end of core tube hub axis external diameter and Enclosing formation cannelure between the internal perisporium of storage tank, spring is positioned in this cannelure and is set in heat-conducting block away from core tube hub On one end of axis；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 Adaptive with the internal threaded regions of metal shell；Screwed pipe plug is provided with outer-hexagonal away from the periphery wall of one end of core tube hub axis and twists Transfer part；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 connects One end of nearly core tube hub axis is connected on heat-conducting block, and spring is connected to screwed pipe plug away from the other end of core tube hub axis On；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, and logical Cross traditional bolt assembly clamping electric power cable to compare, bigger pressure can be applied, and there is excellent anti-loosening effect, effectively Ensure the reliability of long-term work.(2) present invention is by being arranged on cable clamping in overhead transmission line power line clamp At the heart, its gravity centre distribution is relatively reasonable, when on the overhead power line of high-altitude, is conducive to alleviating vibration.(3) due to base tube It is provided with the installation screw extending radially through pressure pipe portion wall body along base tube, installation screw is fixed with temperature sensing device；So this 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 perspective view when another angle is observed of the wire clamp shown in Fig. 1；
Fig. 3 is a kind of front view of wire clamp shown in Fig. 1；
Fig. 4 is that shown in Fig. 1, the one of wire clamp partly cuts open structural representation；
Fig. 5 is a kind of explosive view of wire clamp shown in Fig. 1；
Fig. 6 is a kind of explosive view during observation of another angle of wire clamp shape shown in Fig. 1；
Fig. 7 is the explosive view that wire clamp shown in Fig. 6 decomposes further；
Fig. 8 is a kind of perspective view of wire clamp midplane nut shown in Fig. 1；
Fig. 9 is that the one of the second structure of the present invention partly cuts open structural representation；
Figure 10 is the close-up schematic view in Fig. 9 at B；
Figure 11 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 power line clamp, as shown in Fig. 1 to Fig. 8,
Including 1, core pipe 2 of a base tube, a set of paw assembly 3 and a plane nut 4；The internal perisporium of base tube is along base tube axle To being provided with multiple crimping boss 11, the inwall of each crimping boss is provided with arcuate groove 111；The internal perisporium of base tube the most also sets along base tube There is multiple positioning runner 12；The periphery wall of core pipe is provided with multiple support flange 21 extended along base tube radially protruding, respectively supports The outboard end of flange is positioned in a corresponding positioning runner, thus core pipe is supported in the tube chamber being positioned at base tube；Core pipe and base Pipe is arranged concentrically and is positioned at base tube tube chamber；The tube wall of core pipe is provided with the spacing slide opening of multiple radial direction 22, each radially spacing slide opening All extend radially through core tube wall along base tube；Each radially spacing slide opening be positioned at core pipe axially on middle part, each radially spacing hole Radial cross-sectional shape is I-shaped；The internal perisporium of core pipe is provided with the annular gear platform 23 of inwardly projecting formation；Paw assembly includes Multiple paws 5, each paw includes pressing plate portion 51, the guide runner portion 52 of the inwardly projecting formation of inwall from pressing plate portion and is arranged on Driving threaded portion 53 in guide runner portion；Pressing plate portion is axially extending along base tube, and guide runner portion radially extends along base tube；Each pressure The outer wall in pawl pressing plate portion is provided with arc clip slot 511.
Each guide runner portion inserts on core pipe in a corresponding spacing slide opening of radial direction, and each driving threaded portion stretches to core pipe In tube chamber, each pressing plate portion is positioned between base tube inwall and core tube wall；Each paw is in the guide and limit effect of radially spacing slide opening The lower radial direction along base tube reciprocatingly slides；The radial cross-sectional shape in each guide runner portion is adaptive with radial direction spacing hole I-shaped.
In the present embodiment, the arcuate groove of a corresponding crimping boss is just arranged by the arc clip slot of each paw, and this paw Arc clip slot and this crimping boss arcuate groove clamping formed a clamp hole 6, each clamp hole for clamping one electric lines of force Cable.In the present embodiment, the size in each clamp hole can be different, for clamping the cable of different thicknesses.
Plane nut is arranged in core pipe tube chamber, and keeps off between platform in the driving threaded portion of each paw and core pipe；Plane Nut includes driving threaded portion engage the flat thread portion 41 of adaptation and be positioned at the fastening of plane nut center with each paw Portion 42, plane nut adjoins the flat thread portion that arranges on a side of paw assembly, another side of plane nut and core pipe gear Platform slides adjacent；The periphery wall of plane nut and core inside pipe wall slide adjacent；Flat thread portion is annular, and flat thread sets in portion There is 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 wearing in each arcuate groove and each arc clip slot Thorn 7；Specifically, respectively puncture along base tube 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 crimping boss and base tube are by watering Casting the integral piece that shape is made, each puncture is made when casting forming；In concrete practice, puncture and may be used without alternate manner system Become；In each arcuate groove and each arc clip slot, such as it is provided with multiple installation draw-in groove, then embedding by the die-cut puncture sheet made Being contained in corresponding one and install in draw-in groove, puncture sheet and include installation portion and thorn blade, installation portion is inlaid in installation draw-in groove, stings blade Then expose installation draw-in groove and form puncture.The benefit of this structure is to puncture sheet the material different with paw can be used to make, especially It is to select and treat that same material used by clamp cable is made, and is 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 twists operation Use inner hexagon spanner；In concrete practice, described fastening part just can use other shape, the most square or in-line or Flos Mume Shape, all can select.
In the present embodiment, the quantity of crimping boss and paw is identical, is all four, therefore the present embodiment can form four Individual clamp hole, is especially suited as branch connection wire clamp and uses.
In concrete practice, crimping boss and the quantity of paw can select according to actual needs, such as two or three Deng, it is all feasible.
Plane nut, in reciprocating rotation, drives its flat thread portion reciprocating rotation, and then by engaging adaptation Threaded portion is driven to drive each paw, due to each paw footpath only along base tube under the guide and limit effect of radially spacing slide opening To moving back and forth so that the move mode of each paw be close to each other towards base tube center or away from, thus unclamp or press from both sides Tightly it is positioned at the electric power cable in 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；Separately Outward, the present embodiment drives paw clamping electric power cable by flat thread portion, and by traditional bolt assembly clamping electric lines of force Cable is compared, particularly excellent in anti-loosening effect, and the reliability of long-term work is effectively ensured.
(embodiment 2)
The present embodiment and embodiment 1 are essentially identical, and difference is: as shown in Fig. 9 and Figure 10, and base tube 1 is provided with and radially passes through Wear the installation screw 15 of base tube wall body；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 cannelure between external diameter and the internal perisporium of storage tank away from the other end of core tube hub axis 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 metal The internal threaded regions 817 of housing 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 abuts away from the other end of core tube hub axis 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, multiple installation screw and temperature sensing device can be set on base tube, for each Cable and the temperature with base tube junction monitor in real time, thus realize the further intellectuality that power network monitoring runs.
(embodiment 3)
The present embodiment and embodiment 2 are essentially identical, and difference is: as shown in Figure 11, the periphery wall of base tube in the present embodiment Upper the most sheathed being fixed with current transformer 9, this current transformer 9 includes toroidal inductive body 91 and intelligent control module 92；Intelligence The monnolithic case of energy control module is also annular；Toroidal inductive body 91 and intelligent control module 92 are arranged side by side.
When the quantity of the crimping boss in the present embodiment and paw all selects three, the present embodiment can form three folders String holes, for three phase cables of clamping, now the present embodiment entirety can use as high pressure zero sequence current mutual inductor, is used for examining Survey the existence of leakage current, to find leak current fault in time.
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.
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 (2)

1. an overhead transmission line power line clamp, it is characterised in that: include a base tube, core pipe, a set of paw assembly and One plane nut；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, the inner circumferential of core pipe Wall is provided with the annular gear platform of inwardly projecting formation；Paw assembly includes that multiple paw, each paw include pressing plate portion, from pressing plate portion The guide runner portion of the inwardly projecting formation of inwall and the driving threaded portion that is arranged in guide runner portion；Each guide runner portion inserts Entering 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 is positioned at base Between inside pipe wall and core tube wall；Each pressing plate portion and a corresponding crimping boss clamping form a clamp hole；Plane nut turns Move and be arranged in core pipe tube chamber, and keep off between platform in the driving threaded portion of each paw and core pipe；Plane nut includes and each pressure Pawl drives the flat thread portion of threaded portion engagement adaptation and is positioned at the fastening part of plane nut center；The periphery of plane nut Wall and core inside pipe wall slide adjacent；Plane nut adjoins a side of gear platform and slides adjacent with gear platform；Plane nut is away from gear platform Another side flat thread portion is set；Flat thread portion is annular, and flat thread portion is provided with archimedean spiral groove, respectively presses The thread groove that driving threaded portion is provided with and this archimedean spiral groove is adaptive of claw assembly, each driving threaded portion is arranged on place One side of guide runner portion adjacent flat nut；Base tube is provided with the installation screw of built-in temperature sensing device；Temperature sensing fills Put the metal shell with storage tank including metal material and making, the temperature sensor being arranged in storage tank, for by temperature Degree sensor is crimped on the spring on storage tank diapire, screwed pipe plug for limit spring；Metal shell is close to core tube hub One end of axis is provided with heat conduction boss, and metal shell is provided with interior hexagonal away from one end of core tube hub axis and twists groove；Metal-back The periphery wall of body 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 sensing Device includes the heat-conducting block, the U-shaped thermo-sensitive resistor being arranged in heat-conducting block that use heat conductive insulating elastomeric material to make, is arranged on heat conduction Two on block connect electric mortiser post；Heat-conducting block can reciprocatingly slide in the storage tank of metal shell；Heat-conducting block is close to core tube hub axle One end of line is connected on the diapire of storage tank；Two connect electric mortiser post and protrude and be arranged on another away from core tube hub axis of heat-conducting block On one end；Heat-conducting block encloses formation annular between external diameter and the internal perisporium of storage tank away from the other end of core tube hub axis Groove, 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 close to core pipe The periphery wall of one end of central axis is provided with external screw thread district, 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 pipe Chamber；Screwed pipe plug is fixedly installed in cannelure by its external screw thread district；Spring is connected to close to one end of core tube hub axis On heat-conducting block, spring is connected on screwed pipe plug away from the other end of core tube hub axis；Two on heat-conducting block connect electric mortiser post It is positioned in the tube chamber of screwed pipe plug.
Overhead transmission line power line clamp the most according to claim 1, it is characterised in that: heat conduction boss is to connect from metal shell The sharp tooth boss formed is protruded in one end of nearly core tube hub axis.
CN201610286270.2A 2016-05-02 2016-05-02 Power line clamp for overhead line Withdrawn CN105896114A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610286270.2A CN105896114A (en) 2016-05-02 2016-05-02 Power line clamp for overhead line

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610286270.2A CN105896114A (en) 2016-05-02 2016-05-02 Power line clamp for overhead line

Publications (1)

Publication Number Publication Date
CN105896114A true CN105896114A (en) 2016-08-24

Family

ID=56703138

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610286270.2A Withdrawn CN105896114A (en) 2016-05-02 2016-05-02 Power line clamp for overhead line

Country Status (1)

Country Link
CN (1) CN105896114A (en)

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Application publication date: 20160824

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