CN105914496A - High voltage electricity connection metal fitting with good line clamping fastness - Google Patents

High voltage electricity connection metal fitting with good line clamping fastness Download PDF

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Publication number
CN105914496A
CN105914496A CN201610289470.3A CN201610289470A CN105914496A CN 105914496 A CN105914496 A CN 105914496A CN 201610289470 A CN201610289470 A CN 201610289470A CN 105914496 A CN105914496 A CN 105914496A
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CN
China
Prior art keywords
core
tube
heat
hub axis
base tube
Prior art date
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Withdrawn
Application number
CN201610289470.3A
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Chinese (zh)
Inventor
申清章
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Individual
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Individual
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Application filed by Individual filed Critical Individual
Priority to CN201610289470.3A priority Critical patent/CN105914496A/en
Publication of CN105914496A publication Critical patent/CN105914496A/en
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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
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G7/00—Overhead installations of electric lines or cables
    • H02G7/05—Suspension arrangements or devices for electric cables or lines
    • 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 present invention discloses a high voltage electricity connection metal fitting with good line clamping fastness. The fitting comprises a base tube, a core tube, two press claw assemblies and a planar nut. A crimping boss is arranged at the internal perisporium of the base tube, and a radial spacing sliding hole is arranged at the wall of the core tube; each press claw assembly includes a plurality of press claws; each press plate part and a corresponding crimping boss are clamped to form a line clamping hole; the planar nut rotatingly arranged in the core tube cavity; planar screw parts are arranged at two side ends of the planar nut upwards along the core tube shaft, and a fastening part is located at the center of the planar nut; each planar screw part and the driving screw part of each press claw in the corresponding press claw assembly are engaged and adapted; the base tube is provided with an installation screw penetrating the base tube wall body in the radial direction; and an installation screw of a built-in temperature sensing device is arranged in the base tube. The high voltage electricity connection metal fitting with the good line clamping fastness has a good anti-loosening effect.

Description

There is the high-tension electricity splicing fitting of preferable clamp fastness
Technical field
The invention belongs to overhead transmission line electric armour clamp technical field, be specifically related to a kind of high pressure with preferable clamp fastness Electric power splicing fitting.
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 having preferably of preferable anti-loosening effect and real time temperature monitoring function The high-tension electricity splicing fitting of clamp fastness.
The technical scheme realizing the object of the invention is: a kind of high-tension electricity splicing fitting with preferable clamp fastness, its It is characterised by: include a base tube, core pipe, two casing pressure claw assemblies and a plane nut；The internal perisporium of base tube is provided with pressure Connecing boss, the tube wall of core pipe is provided with radially spacing slide opening；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；Respectively Pressing plate portion is positioned between base tube inwall and core tube wall, and each guide runner portion inserts a corresponding spacing slide opening of radial direction on core pipe In, 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；Plane nut rotation is arranged in core pipe tube chamber；Plane nut along core pipe axially on two side ends be respectively provided with a plane spiral shell Line portion, the center of plane nut is provided with fastening part；The driving of each paw in each flat thread portion and corresponding a set of paw assembly Threaded portion engagement adaptation；The internal perisporium of base tube is axially additionally provided with multiple positioning runner along base tube；The periphery wall of core pipe is provided with many The individual support flange extended along core pipe radially protruding, 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 periphery wall of each plane nut and core inside pipe wall slide adjacent；Each set paw group Driving threaded portion in part all stretches in core pipe tube chamber, and the driving threaded portion in each casing pressure claw assembly is all connected to corresponding one In individual flat thread portion；
Base tube is provided with the installation screw of built-in temperature sensing device；Having that temperature sensing device includes that metal material makes is accommodating The metal shell of groove, the temperature sensor being arranged in storage tank, for temperature sensor is crimped on storage tank diapire Spring, 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 external diameter 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.
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 synchronizes to drive two casing pressure claw assemblies to press from both sides by a plane nut Tight electric power cable, compares with by traditional bolt assembly clamping electric power cable, can apply bigger pressure, and have excellence Anti-loosening effect, is effectively ensured the reliability of long-term work.(2) present invention is by being arranged on power circuit cable clamping The center of splicing fitting, its gravity centre distribution is relatively reasonable, when on the overhead power line of high-altitude, is conducive to alleviating and shakes Dynamic.(3) present invention uses two casing pressure claw assemblies to be clamped on same cable, has the effect of dual fail-safe, even if wherein one being enclosed within Go wrong in using, its service behaviour of the most another set of guarantee.(4) pressure pipe portion wall is extended radially through owing to base tube is provided with along base tube The installation screw of body, is fixed with temperature sensing device in installation screw；So the present invention also has real time temperature monitoring 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 high-tension electricity splicing fitting with preferable clamp fastness, as shown in Fig. 1 to Fig. 5, including one 1, core pipe 2, two casing pressure claw assembly 3 of base tube and a plane nut 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 deep-slotted chip breaker 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 pipe In chamber；The periphery wall of core pipe is provided with multiple support flange 21 extended along core pipe radially protruding, each outboard end supporting flange It 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 multiple The most spacing slide opening 22, each radially spacing slide opening all extends radially through core tube wall along core pipe.
Each casing pressure claw assembly includes multiple paw 5, in the most each casing pressure claw assembly the quantity of paw can one to Selecting as required between four, 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 that pressing plate portion 51, inwall from pressing plate portion are inwardly projecting The guide runner portion 52 formed and the driving threaded portion 53 being arranged in guide runner portion；Pressing plate portion is axially extending along base tube, leads Radially extend along core pipe to slide section；The outer wall in each paw pressing plate portion is provided with arc clip slot 511；Each pressing plate portion is positioned at base tube Between wall and core tube wall, each guide runner portion inserts on core pipe in a corresponding spacing slide opening of radial direction, and each driving threaded portion is stretched Enter to the tube chamber of 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, the radial section in each guide runner portion Shape is adaptive with radial direction spacing hole I-shaped；In concrete practice, radially spacing hole and the radial section in guide runner portion Shape 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 deep-slotted chip breaker 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 deep-slotted chip breaker clamping formed a clamp hole 6, each clamp hole for clamping one power line Cable.In the present embodiment, the size in each clamp hole can be different, for clamping the cable of different thicknesses.
Plane nut rotation is arranged in core pipe tube chamber；The periphery wall of plane nut and core inside pipe wall slide adjacent, plane Nut along core pipe axially on two side ends be respectively provided with a flat thread portion 41, the center of plane nut is provided with fastening part 42； The driving threaded portion engagement adaptation of each paw in each flat thread portion and corresponding a set of paw assembly；Driving in each casing pressure claw assembly Dynamic threaded portion all stretches in core pipe tube chamber, and the driving threaded portion in each casing pressure claw assembly is all connected to a corresponding plane spiral shell In line portion；Each flat thread portion is annular, and flat thread portion is provided with archimedean spiral groove；The driving screw thread of each paw assembly The thread groove that portion is provided with and this archimedean spiral groove is adaptive, it is adjacent flat that each driving threaded portion is arranged on guide runner portion, place One side of face nut.
In the present embodiment, the direction of rotation in the flat thread portion of plane nut one side is forward, the plane of another side The direction of rotation of threaded portion is reverse, and the direction of rotation driving screw thread on each paw is and the flat thread adjacent with this paw The direction that portion is adaptive.When this structure makes plane nut rotation, by the two of its two side ends flat thread portions, synchronize to drive Two casing pressure claw assemblies realize clamping or unclamp the cable being positioned in clamp hole.
The present embodiment, in order to connect electricity on insulating power cable, is also provided with multiple wearing in each deep-slotted chip breaker 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 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 deep-slotted chip breaker 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 plum blossom Shape, 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, plane nut, when reciprocating rotation, drives two flat thread portion reciprocating rotations, so by with In the corresponding a set of paw assembly of driving threaded portion driving that the engagement of each flat thread portion is adaptive, each paw moves, owing to each paw exists Under the guide and limit effect of the most spacing slide opening, the radial direction only along core pipe 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 being positioned in each clamp hole Cable.The present embodiment achieves and synchronizes to drive each paw in two casing pressure claw assemblies be clamped and unclamp line with a plane nut The action of cable.
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 power line Cable is compared, particularly excellent in anti-loosening effect, and the reliability of long-term work is effectively ensured.It addition, the present embodiment passes through Same cable is used two casing pressure claw assembly clampings, there is the effect of dual fail-safe, in use go wrong even if the most a set of, Also has its service behaviour of 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 and extends radially through 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 8, in the present embodiment on the periphery wall of base tube 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 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.
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.
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. a high-tension electricity splicing fitting with preferable clamp fastness, it is characterised in that: include a base tube, a core Pipe, two casing pressure claw assemblies and a plane nut；The internal perisporium of base tube is provided with crimping boss, and the tube wall of core pipe is provided with radially limit Position slide opening；Each casing pressure claw assembly includes that multiple paw, each paw include pressing plate portion, the inwardly projecting formation of inwall from pressing plate portion Guide runner portion and the driving threaded portion being arranged in guide runner portion；Each pressing plate portion be positioned at base tube inwall and core tube wall it Between, each guide runner portion inserts on core pipe in a corresponding spacing slide opening of radial direction, each tube chamber driving threaded portion to stretch to core pipe In；Each pressing plate portion and a corresponding crimping boss clamping form a clamp hole；Plane nut rotation is arranged in core pipe tube chamber； Plane nut along core pipe axially on two side ends be respectively provided with a flat thread portion, the center of plane nut is provided with fastening part； The driving threaded portion engagement adaptation of each paw in each flat thread portion and corresponding a set of paw assembly；The internal perisporium of base tube is along base tube Axially it is additionally provided with multiple positioning runner；The periphery wall of core pipe is provided with multiple support flange extended along core pipe radially protruding, respectively The 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；Each flat The periphery wall of face nut and core inside pipe wall slide adjacent；Driving threaded portion in each casing pressure claw assembly all stretches to core pipe tube chamber In, and the driving threaded portion in each casing pressure claw assembly is all connected in a corresponding flat thread portion；
Base tube is provided with the installation screw of built-in temperature sensing device；Having that temperature sensing device includes that metal material makes is accommodating The metal shell of groove, the temperature sensor being arranged in storage tank, for temperature sensor is crimped on storage tank diapire Spring, 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 external diameter 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 high-tension electricity splicing fitting with preferable clamp fastness the most according to claim 1, it is characterised in that: heat conduction is convex Platform is to protrude the sharp tooth boss formed close to one end of core tube hub axis from metal shell.
CN201610289470.3A 2016-05-02 2016-05-02 High voltage electricity connection metal fitting with good line clamping fastness Withdrawn CN105914496A (en)

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Application Number Priority Date Filing Date Title
CN201610289470.3A CN105914496A (en) 2016-05-02 2016-05-02 High voltage electricity connection metal fitting with good line clamping fastness

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Application Number Priority Date Filing Date Title
CN201610289470.3A CN105914496A (en) 2016-05-02 2016-05-02 High voltage electricity connection metal fitting with good line clamping fastness

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112582812A (en) * 2020-11-27 2021-03-30 林大锡 Prevent not hard up portable protection mechanism of cable interface

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112582812A (en) * 2020-11-27 2021-03-30 林大锡 Prevent not hard up portable protection mechanism of cable interface

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