CN105990710A - Electric power fitting for preventing cable loosening - Google Patents

Electric power fitting for preventing cable loosening Download PDF

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Publication number
CN105990710A
CN105990710A CN201610285935.8A CN201610285935A CN105990710A CN 105990710 A CN105990710 A CN 105990710A CN 201610285935 A CN201610285935 A CN 201610285935A CN 105990710 A CN105990710 A CN 105990710A
Authority
CN
China
Prior art keywords
core pipe
paw
plate portion
crimp
core
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Withdrawn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
CN201610285935.8A
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Chinese (zh)
Inventor
不公告发明人
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN201610285935.8A priority Critical patent/CN105990710A/en
Publication of CN105990710A publication Critical patent/CN105990710A/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Withdrawn legal-status Critical Current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
    • H01R4/50—Clamped connections, spring connections utilising a cam, wedge, cone or ball also combined with a screw
    • H01R4/5016—Clamped connections, spring connections utilising a cam, wedge, cone or ball also combined with a screw using a cone
    • 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)
  • Laying Of Electric Cables Or Lines Outside (AREA)

Abstract

The invention discloses an electric power fitting for preventing cable loosening. The electric power fitting comprises an abutting bolt, a core tube, a crimping component and a pressing claw component. The tube wall of the core tube is provided with radial guide slide holes. The tube cavity of the core tube is provided with an internal thread area. The crimping component comprises multiple crimping members. Each crimping member is provided with a pressing plate part and anti-loosening connecting parts. The crimping members are detachably arranged on the core tube through the anti-loosening connecting parts. The pressing claw component comprises multiple pressing claws. Each pressing claw comprises a top plate part, a guide slide block part and a driving surface. Each guide slide block part is inserted into one corresponding radial guide slide hole. The abutting bolt comprises a body, an external thread area and an abutting boss. The shape of the abutting boss is a cone frustum. The external thread area of the abutting bolt is adaptive to the internal thread area of the core tube. The driving surface of each pressing claw is adaptive to the external circumferential wall of one corresponding abutting boss. At least one crimping member is provided with an installing screw hole with a built-in temperature sensing device. The electric power fitting for preventing cable loosening is stable and reliable in installing fastness.

Description

A kind of electric armour clamp preventing cable from getting loose
Technical field
The invention belongs to electric armour clamp technical field, be specifically related to a kind of electric armour clamp preventing cable from getting loose.
Background technology
In the construction of overhead power line, when cable Xu Zuo branch or when continuing, need with gold utensil by two insulated conductors even It is connected together.Gold utensil has simple installation, low cost, safe and reliable non-maintaining feature.Without blocking leader cable, without peelling off The insulating barrier of cable can do cable branch, and joint is completely insulated, can livewire work, can cable optional position make scene point ?；It is not required to use termination rack, coupling box；And joint warp resistance, shockproof, waterproof, anticorrosion is aging；Insulation fitting is used to make cable Branch, comprehensive benefit is obvious, and cost performance is better than conventional conventional coupling arrangement.
Traditional gold utensil is mainly made up of enhancing housing, piercing blade, waterproof silicone grease, high-strength bolt and nut, its spiral shell Female preferably torque nut, its structure is the most ripe, also obtains relatively broad application.But tradition gold utensil there is also deficiency Place, 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 and have real time temperature control function, install fastness reliable and stable prevent line The electric armour clamp that cable gets loose.
The technical scheme realizing the object of the invention is: a kind of electric armour clamp preventing cable from getting loose, including a top pressure spiral shell Bolt, core pipe, a set of crimp assemblies and a set of paw assembly；The tube wall of core pipe is provided with one group of pilot hole, this group pilot hole Including multiple radially-directed slide openings；Core pipe tube chamber is provided with internal threaded regions；Crimp assemblies includes multiple crimp；Each crimp sets There are pressing plate portion and anticreep connecting portion；Crimp is arranged on core pipe by anticreep connecting portion is dismountable；Paw assembly includes many Individual paw；Each paw includes top plate portion, from the guide runner portion of the inwardly projecting formation of the inwall of top plate portion with to be arranged on guiding sliding Drive surface in block portion；Each guide runner portion inserts on core pipe in a corresponding radially-directed slide opening, and each drive surface stretches to core In the tube chamber of pipe, each top plate portion is between core inside pipe wall and core tube wall；The top plate portion of each paw is just to a corresponding crimping Part pressing plate portion is arranged, and this top plate portion and this pressing plate portion clamping form one for the clamp hole clamping electric power cable；Top pressure bolt The external screw thread district including body, being arranged on body peripheral wall and the top belling platform being arranged on body medial extremity, push up belling platform Be shaped as circular cone shape；The external screw thread district of top pressure bolt and the internal threaded regions of core pipe are adaptive；The drive surface of each paw is with corresponding One top belling platform periphery wall is adaptive；Multiple draw-in groove is set on the periphery wall of core pipe；The clamping protruded inwardly from is set on each pressing plate Support column or clamping gripper shoe, each clamping support column or clamping gripper shoe directly snap in a corresponding draw-in groove；Each shackle member is led to Cross snap fit to be arranged on core pipe；The top plate portion of each paw is axially extending along core pipe, and the guide runner portion of each paw is along core pipe Radially extend；Top pressure bolt along preset direction rotate time, drive top belling platform to rotate in core pipe tube chamber traveling, Top belling platform presses each drive surface to promote each paw by top so that each top plate portion is moved radially outward along core pipe, thus clamps position Electric power cable in each clamp hole；At least one crimp 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 will Temperature sensor is crimped on the spring on storage tank diapire and the screwed pipe plug for limit spring.
The present invention has positive effect: (1) top pressure bolt and core pipe connect threadably, and by taper electrolysis Crimping each paw makes it clamp electric power cable, and its operation is the most laborsaving, and has preferable anti-loosening effect；(2) by line Cable clip is tightly arranged at core tube hub so that overall gravity centre distribution is relatively reasonable, when on the overhead power line of high-altitude, Be conducive to alleviating vibration.(3) installation screw in pressing plate portion is extended radially through along core pipe owing to crimp is provided with, fixing in installation screw It is provided 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 perspective view when another angle is observed of the gold utensil shown in Fig. 1；
Fig. 3 is that shown in Fig. 1, the one of gold utensil faces structural representation；
Fig. 4 is that shown in Fig. 1, the one of gold utensil partly cuts open structural representation；
Fig. 5 is a kind of explosive view of gold utensil shown in Fig. 1；
Fig. 6 is a kind of explosive view when another angle is observed of the gold utensil shown in Fig. 1；
Fig. 7 is a kind of explosive view after gold utensil shown in Fig. 1 removes crimp and top pressure bolt；
Fig. 8 is that the one of the second structure of the present invention partly cuts open structural representation；
Fig. 9 is the close-up schematic view in Fig. 8 at B；
Figure 10 is that the one of the third structure of the present invention partly cuts open structural representation；
Figure 11 is that the one of the 4th kind of structure of the present invention partly cuts open structural representation；
Figure 12 is a kind of structural representation of gold utensil shown in Figure 11.
Detailed description of the invention
(embodiment 1)
The present embodiment is a kind of electric armour clamp preventing cable from getting loose, as shown in Fig. 1 to Fig. 7, including a top pressure bolt 1, Individual core pipe 2, a set of crimp assemblies 3 and a set of paw assembly 9.
The tube wall of core pipe is provided with one group of pilot hole, and this group pilot hole includes four radially-directed slide openings 22, these four footpaths It is evenly distributed on core tube wall along core pipe circumference to guiding slide opening；Each radially-directed slide opening all extends radially through core pipe along core pipe Tube wall；Each radially-directed slide opening be positioned at core pipe axially on middle part, the cross sectional shape of each radially-directed slide opening is I-shaped.Core pipe Tube chamber is provided with internal threaded regions 23.
Crimp assemblies 3 includes four crimps 31；Each crimp is provided with pressing plate portion 311 and anticreep connecting portion 312；Crimp It is arranged on core pipe by anticreep connecting portion is dismountable；Pressing plate portion is axially extending along core pipe, and the inwall in pressing plate portion is provided with arc Groove 313, the periphery wall in pressing plate portion is circular arc；Anticreep connecting portion is two the post plates protruding inwardly from formation from pressing plate portion two side ends 314, the radial cross-sectional shape of each post plate is L-shaped；In the present embodiment, two L-shaped post plates are oppositely arranged.
The inwall of a corresponding crimp is just arranged by each radially-directed slide opening.
Four groups it are provided with vertically for the anticreep chute 21 installing location crimp on the periphery wall of core pipe；Respectively organize anti-skid Groove includes that two radial sections are the axial slides 211 of L-shaped；In the present embodiment, two adjacent axial slides are oppositely arranged；Respectively Axial slide and a corresponding post plate are adaptive；The anticreep connecting portion of each crimp along core pipe axial direction from corresponding set of anti-skid One side of groove slips in this group anticreep chute；In concrete practice, anticreep connecting portion can select other shape, as long as making The anticreep connecting portion obtaining crimp can not remove along core caliber to from anticreep chute；In concrete practice, it is possible to select Snap fit installs fixing each crimp；Multiple draw-in groove is such as set on the periphery wall of core pipe, each pressing plate is arranged inwardly Prominent clamping support column or clamping gripper shoe, directly snap in a corresponding draw-in groove by each clamping support column or clamping gripper shoe In, also can prevent shackle member from removing core pipe along core pipe radial direction, this structure is also feasible.
In the present embodiment, crimp is identical with the quantity of paw.
In concrete practice, the cross sectional shape of radially-directed slide opening may be used without other shape, the most circular, square, Pedicellus et Pericarpium Trapae Shape, is all feasible.
Paw assembly 9 includes four paws 4；Each paw includes top plate portion 41, from the inwardly projecting formation of the inwall of top plate portion Guide runner portion 42 and the drive surface 43 that is arranged in guide runner portion；Top plate portion is axially extending along core pipe, guide runner portion Radially extend along core pipe；The outer wall of each paw top plate portion is provided with arc clip slot 411；Each guide runner portion inserts on core pipe corresponding In one radially-directed slide opening, each drive surface stretches in the tube chamber of core pipe, and each top plate portion is positioned at core inside pipe wall and core tube wall Between；Each paw reciprocatingly slides along the radial direction of core pipe under the guide and limit effect of radially-directed slide opening；Each guide runner portion Cross sectional shape is adaptive with radially-directed slide opening I-shaped.
The arcuate groove in a corresponding crimp pressing plate portion is just arranged by the arc clip slot of each paw top plate portion, this arc clip slot Forming a clamp hole 5 with this arcuate groove clamping, each clamp hole is for one electric power cable of clamping.The present embodiment forms four altogether Clamp hole, can clamp four electric power cables.In concrete practice, the size of each crimp can be different, the most each pressing plate portion Arcuate groove and core tube wall between distance different, such that it is able to form the clamp hole varied in size, be used for clamping different thick Thin cable.
Top pressure bolt 1 includes body 11, the external screw thread district 12 that is arranged on body peripheral wall, be arranged on outer body end Fastening part 13 and the top belling platform 14 being arranged on body medial extremity, that pushes up belling platform is shaped as circular cone shape；Top pressure bolt The internal threaded regions of external screw thread district and core pipe is adaptive；Top axially extending along core pipe of belling platform, and be positioned in core pipe tube chamber.
In the present embodiment, the drive surface of each paw is one and the curved surface of top belling platform periphery wall adaptation, at concrete practice In, this drive surface also can be selected for inclined-plane.
In the present embodiment, in paw assembly, the quantity of paw is identical with the quantity of radially-directed slide opening in each group of pilot hole, can Select between two to five.
The present embodiment is in order to connect electricity or promote chuck strength, also at each arc clip slot and arcuate groove on insulating power cable In be provided with multiple puncture 6；Specifically, each puncture is along the radially protruding of core pipe.The existence punctured, can be without to insulating power Cable carries out peeling process, 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 puncture is made when casting forming；? In concrete practice, puncture may be used without alternate manner and makes；In each arc clip slot and arcuate groove, such as it is provided with multiple installation block Groove, then installs in draw-in groove being inlaid in corresponding one by the die-cut puncture sheet made；Puncture sheet and include installation portion and thorn sword Portion, 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, especially select and treat that same material used by clamp cable is made, be conducive to obtaining Preferably electric property.In concrete practice, it is also possible to use in the mode being threaded in each arc clip slot and arcuate groove, also Can improving clamping sigma compactness energy.
Top pressure bolt along preset direction rotate time, drive top belling platform to rotate in core pipe tube chamber traveling, Top belling platform presses each drive surface to promote each paw by top so that each top plate portion is moved radially outward along core pipe, thus clamps position Electric power cable in each clamp hole.
The present embodiment has following Advantageous Effects: (1) top pressure bolt and core pipe connect threadably, and by top Belling platform pushes the drive surface of each paw, and then promotes each paw to move along core pipe radial direction；Its operation is the most laborsaving, and There is preferable anti-loosening effect.(2) it is to be arranged on core pipe by sliding due to crimp, first cable can be placed in each pressure In the arc clip slot of pawl, more corresponding crimp is loaded in corresponding anticreep chute, corresponding electric power cable can be placed in In clamp hole；This structure makes to clamp the easy to operation of electric power cable.
(embodiment 2)
The present embodiment and embodiment 1 are essentially identical, and difference is: as shown in Fig. 8 to Fig. 9, and at least one crimp 31 sets There is the installation screw 315 extending radially through pressing plate portion 311 wall body along core pipe；This installation screw is fixed with a temperature sensing dress Put 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, at least one installation screw and a temperature sensing dress can be respectively provided with on each crimp Put, for each cable and and the temperature of crimp junction monitor in real time, thus realize what power network monitoring ran The most intelligent.
(embodiment 3)
The present embodiment and embodiment 2 are essentially identical, and difference is: as shown in Figure 10, and the present embodiment also includes Current Mutual Inductance Device 7；This current transformer includes toroidal inductive body 71 and intelligent control module 72；In the present embodiment, intelligent control module 72 Making and have the ring-type of onesize vestibule with toroidal inductive body, annular perception sensing body and intelligent control module set side by side Put combination and form annular, on the overall sheathed outer wall being fixed on pressing plate portion of current transformer, namely crimp assemblies to be positioned at electric current mutual In the vestibule that sensor is overall.In concrete practice, current transformer also can be fixedly installed on the tube wall of core pipe, as long as making institute There is clamp hole to be positioned in the vestibule of toroidal inductive body, namely have only to so that cable passes the vestibule of toroidal inductive body ?.
Intelligent control module can include wireless transmit/receive units, and intelligent control module is felt annular by wireless transmit/receive units The leakage current signal answering body to sense sends distance host to, to realize accurate long-range no worker monitor, finds in time Lou Electric fault.
The internal perisporium of intelligent control module 72 is provided with inwardly projecting two and connects electric bushing (being not drawn on figure), respectively connects electricity Socket inserts corresponding one and connects in electric bushing, so that temperature sensor is connected with the middle control circuit in intelligent control module.
The present embodiment can use as a zero sequence current mutual inductor.
(embodiment 4)
The present embodiment and embodiment 2 are essentially identical, and difference is: as shown in Figure 11 to Figure 12, and the present embodiment also includes electricity Current transformer 7；This current transformer includes toroidal inductive body 71 and intelligent control module 72；In the present embodiment, annular perception On the sensing sheathed periphery wall being fixed on pressing plate portion of body；Between core tube wall, crimp and toroidal inductive body, clamping is formed Multiple containing cavities 73, intelligent control module is arranged in containing cavity.This structure can make full use of space, is conducive to entirety Small-sized and integrated.
Intelligent control module can include wireless transmit/receive units, and intelligent control module is felt annular by wireless transmit/receive units The leakage current signal answering body to sense sends distance host to, to realize accurate long-range no worker monitor, finds in time Lou Electric fault.
The present embodiment can use as a zero sequence current mutual inductor.
Obviously, the above embodiment of the present invention is only for clearly demonstrating example of the present invention, and is not right The restriction of embodiments of the present invention.For those of ordinary skill in the field, the most also may be used To make other changes in different forms.Here without also cannot all of embodiment be given exhaustive.And these Belong to obvious change that the connotation of the present invention extended out or variation still falls within protection scope of the present invention.

Claims (1)

1. the electric armour clamp preventing cable from getting loose, it is characterised in that: include top pressure bolt, core pipe, a casing pressure Connected components and a set of paw assembly；The tube wall of core pipe is provided with one group of pilot hole, and this group pilot hole includes that multiple radially-directed is sliding Hole；Core pipe tube chamber is provided with internal threaded regions；Crimp assemblies includes multiple crimp；Each crimp is provided with pressing plate portion and anticreep connects Portion；Crimp is arranged on core pipe by anticreep connecting portion is dismountable；Paw assembly includes multiple paw；Each paw includes top Plate portion, from the guide runner portion of the inwardly projecting formation of the inwall of top plate portion and the drive surface that is arranged on guide runner portion；Respectively lead Inserting on core pipe in a corresponding radially-directed slide opening to slide section, each drive surface stretches in the tube chamber of core pipe, each top plate portion Between core inside pipe wall and core tube wall；A corresponding crimp pressing plate portion is just arranged by the top plate portion of each paw, this top board Portion and this pressing plate portion clamping form one for the clamp hole clamping electric power cable；Top pressure bolt includes body, is arranged on body External screw thread district on periphery wall and the top belling platform being arranged on body medial extremity, that pushes up belling platform is shaped as circular cone shape；Top The external screw thread district of pressure bolt and the internal threaded regions of core pipe are adaptive；Drive surface and a corresponding top belling platform periphery wall of each paw are fitted Join；Multiple draw-in groove is set on the periphery wall of core pipe；The clamping support column or clamping gripper shoe protruded inwardly from is set on each pressing plate, respectively Clamping support column or clamping gripper shoe directly snap in a corresponding draw-in groove；Each shackle member is arranged on core pipe by snap fit On；The top plate portion of each paw is axially extending along core pipe, and the guide runner portion of each paw radially extends along core pipe；Top pressure bolt is along pre- When set direction rotates, driving top belling platform to rotate and advance in core pipe tube chamber, top belling platform is pressed by top and is respectively driven Dynamic face promotes each paw so that each top plate portion is moved radially outward along core pipe, thus clamping is positioned at the electric lines of force in each clamp hole Cable；At least one crimp is provided with the installation screw of built-in temperature sensing device；Temperature sensing device includes that metal material is made The metal shell with storage tank, the temperature sensor being arranged in storage tank, accommodating for temperature sensor is crimped on Spring in groove bottom wall and the screwed pipe plug for limit spring.
CN201610285935.8A 2016-05-02 2016-05-02 Electric power fitting for preventing cable loosening Withdrawn CN105990710A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610285935.8A CN105990710A (en) 2016-05-02 2016-05-02 Electric power fitting for preventing cable loosening

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610285935.8A CN105990710A (en) 2016-05-02 2016-05-02 Electric power fitting for preventing cable loosening

Publications (1)

Publication Number Publication Date
CN105990710A true CN105990710A (en) 2016-10-05

Family

ID=57044308

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610285935.8A Withdrawn CN105990710A (en) 2016-05-02 2016-05-02 Electric power fitting for preventing cable loosening

Country Status (1)

Country Link
CN (1) CN105990710A (en)

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