CN105633653A - Electric power wire-clamping fitting capable of preventing cable from loosening - Google Patents
Electric power wire-clamping fitting capable of preventing cable from loosening Download PDFInfo
- Publication number
- CN105633653A CN105633653A CN201610099017.6A CN201610099017A CN105633653A CN 105633653 A CN105633653 A CN 105633653A CN 201610099017 A CN201610099017 A CN 201610099017A CN 105633653 A CN105633653 A CN 105633653A
- Authority
- CN
- China
- Prior art keywords
- core pipe
- plate portion
- paw
- crimp
- electric power
- 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- Withdrawn
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
- H01R11/01—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts characterised by the form or arrangement of the conductive interconnection between the connecting locations
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
- H01R11/03—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts characterised by the relationship between the connecting locations
- H01R11/09—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts characterised by the relationship between the connecting locations the connecting locations being identical
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/24—Connections using contact members penetrating or cutting insulation or cable strands
- 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
Landscapes
- Clamps And Clips (AREA)
Abstract
The invention discloses an electric power wire-clamping fitting capable of preventing a cable from loosening. The fitting comprises a thrust bolt, a core tube, a crimping assembly and a pressing claw assembly, wherein radial guiding sliding holes are formed in the tube wall of the core tube; an internal threaded region is arranged in the core tube cavity; the crimping assembly comprises multiple crimping parts; each crimping part is provided with a plate pressing part and an anti-dropping connecting part; the crimping parts are detachably arranged on the core tube through the anti-dropping connecting parts; the pressing claw assembly comprises multiple pressing claws; each pressing claw comprises a top plate part, a guiding sliding block part and a driving surface; each guiding sliding block part is inserted into one corresponding radial guiding sliding hole; the thrust bolt comprises a body, an external threaded region and a top-pressing lug boss; the top-pressing lug boss adopts a circular cone table shape; the external threaded region of the thrust bolt is adapted with the internal threaded region of the core tube; the driving surface of each pressing claw is adapted with the outer circumferential wall of the corresponding top-pressing lug boss; and when the thrust bolt rotates along a preset direction, the thrust bolt pushes each top plate part to move outwardly along the radial direction of the core tube. The electric power wire-clamping fitting is firm to mount, stable and reliable.
Description
Technical field
The invention belongs to electric armour clamp technical field, be specifically related to a kind of electric power clamp gold utensil preventing cable from getting loose.
Background technology
In the construction of overhead power line, when cable Xu Zuo branch or when continuing, it is necessary to gold utensil, two insulated conductors are linked together. Gold utensil has simple installation, low cost, safe and reliable non-maintaining feature. Without blocking leader cable, insulating barrier without peelling off cable can do cable branch, and joint is completely insulated, can livewire work, it is possible to make on-the-spot branch in cable optional position; Do not need to use termination rack, coupling box; And joint warp resistance, shockproof, waterproof, anticorrosion are aging; Using insulation fitting to do 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, and the preferred torque nut of its nut, its structure is comparatively ripe, also obtains relatively broad application. But tradition gold utensil there is also weak point, and the pressure of clamp relies on the pressure of plain bolt assembly, and its fastness is poor, it is easy to loosens.
Summary of the invention
It is an object of the invention to provide a kind of brand new, the electric power clamp gold utensil preventing cable from getting loose that fastness is reliable and stable is installed.
The technical scheme realizing the object of the invention is: a kind of electric power clamp gold utensil preventing cable from getting loose, including a top pressure 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, and this group pilot hole includes multiple radially-directed slide opening; 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 connecting 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; Each guide runner portion inserts on core pipe in a corresponding radially-directed slide opening, and each drive surface stretches in the tube chamber of core pipe, and each top plate portion is 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, and this top plate portion and this pressing plate portion clamping form a clamp hole for clamping electric power cable; Top pressure bolt includes body, the external screw thread district that is arranged on body peripheral wall and the top belling platform being arranged on body medial extremity, top 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; Drive surface and a corresponding top belling platform periphery wall of each paw are adaptive; Top pressure bolt also includes the fastening part being arranged on outer body end; This fastening part is hexagonal shape fastener head; Top axially extending along core pipe of belling platform, and it is arranged in core pipe tube chamber; The drive surface of each paw is one and pushes up the adaptive curved surface of belling platform periphery wall or inclined-plane; Each anticreep connecting portion slips in this group anticreep chute along core pipe axial direction; Top pressure bolt along preset direction rotate time, top belling platform is driven to rotate while advancing in core pipe tube chamber, top belling platform presses each drive surface to promote each paw by pushing up so that each top plate portion is moved radially outward along core pipe, thus clamping is arranged in the electric power cable in each clamp hole.
The present invention has positive effect: (1) top pressure bolt and core pipe connect threadably, and makes it clamp electric power cable by the taper electrolysis each paw of crimping, and its operation is comparatively laborsaving, and has good anti-loosening effect; (2) by cable clamping is arranged on core tube hub place so that overall gravity centre distribution is relatively reasonable, when on the overhead power line of high-altitude, is conducive to alleviating vibration.
Accompanying drawing explanation
Fig. 1 is a kind of perspective view of the first structure of the present invention;
Fig. 2 be gold utensil shown in Fig. 1 from another angle observe time a kind of perspective view;
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 be gold utensil shown in Fig. 1 from another angle observe time a kind of explosive view;
Fig. 7 is a kind of explosive view after gold utensil shown in Fig. 1 removes crimp and top pressure bolt;
The one that Fig. 8 is the second structure of the present invention partly cuts open structural representation;
The one that Fig. 9 is the third structure of the present invention partly cuts open structural representation;
Figure 10 is a kind of structural representation of gold utensil shown in Fig. 9.
Detailed description of the invention
(embodiment 1)
The present embodiment is a kind of electric power clamp gold utensil preventing cable from getting loose, and sees shown in Fig. 1 to Fig. 7, including top pressure 1, core pipe 2 of bolt, a set of crimp assemblies 3 and a set of paw assembly 8.
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, and these four radially-directed slide openings are evenly distributed on core tube wall along core pipe circumference; Each radially-directed slide opening all extends radially through core tube wall along core pipe; Each radially-directed slide opening is positioned at core pipe middle part axially, and 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 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 arcuate groove 313, and the periphery wall in pressing plate portion is circular arc; Anticreep connecting portion is two the post plates 314 protruding inwardly from formation from pressing plate portion two side ends, and 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.
The periphery wall of core pipe is provided with four groups of anticreep chutes 21 for installing location crimp vertically; Each group anticreep chute includes the axial slide 211 that two radial sections are L-shaped; In the present embodiment, two adjacent axial slides are oppositely arranged; Each axial slide and a corresponding post plate are adaptive; The anticreep connecting portion of each crimp slips into this group anticreep chute along core pipe axial direction from a side of corresponding set of anticreep chute; In concrete practice, anticreep connecting portion can select other shape, as long as making the anticreep connecting portion of crimp can not remove along core caliber to from anticreep chute; In concrete practice, it is possible to select snap fit that fixing each crimp is installed; Multiple draw-in groove is such as set on the periphery wall of core pipe, each pressing plate arranges the clamping support column or clamping gripper shoe that protrude inwardly from, each clamping support column or clamping gripper shoe are directly snapped in a corresponding draw-in groove, also preventing 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, for instance circular, square, rhombus, is all feasible.
Paw assembly 8 includes four paws 4; Each paw includes top plate portion 41, from the guide runner portion 42 of the inwardly projecting formation of the inwall of top plate portion and the drive surface 43 that is arranged on guide runner portion; Top plate portion is axially extending along core pipe, and guide runner portion radially extends 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 in a corresponding radially-directed slide opening, and each drive surface stretches in the tube chamber of core pipe, and each top plate portion is between core inside pipe wall and core tube wall; Each paw reciprocatingly slides along the radial direction of core pipe under the guide and limit effect of radially-directed slide opening; The cross sectional shape in each guide runner portion 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, and this arc clip slot and this arcuate groove clamping form a clamp hole 5, and each clamp hole is used for clamping an electric power cable. The present embodiment forms four clamp holes altogether, it is possible to clamp four electric power cables. In concrete practice, the size of each crimp can be different, for instance the distance between arcuate groove and the core tube wall in each pressing plate portion is different, such that it is able to form the clamp hole varied in size, for clamping the cable of different thicknesses.
Top pressure bolt 1 includes body 11, the external screw thread district 12 being arranged on body peripheral wall, the fastening part 13 being arranged on outer body end and the top belling platform 14 being arranged on body medial extremity, top 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; Top axially extending along core pipe of belling platform, and it is arranged in core pipe tube chamber.
In the present embodiment, the drive surface of each paw is the curved surface of and top belling platform periphery wall adaptation, and in concrete practice, 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, in order to connect electricity from insulating power cable or promote chuck strength, is also provided with multiple puncture 6 in each arc clip slot and arcuate groove; Specifically, the radially protruding along core pipe is respectively punctured. The existence punctured, it is possible to without insulating power cable is carried out peeling process, can effectively connect electricity. In concrete practice, if what to clamp 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, be such as provided with multiple installation draw-in groove, then install in draw-in groove be inlaid in corresponding one by the die-cut puncture sheet made; Puncturing sheet include installation portion and sting blade, installation portion is inlaid in installation draw-in groove, and thorn blade then exposes installation draw-in groove and forms puncture. The benefit of this structure is to puncture sheet the material different with paw can be adopted to make, and especially selects and treats that same material used by clamp cable is made, being conducive to obtaining preferably electric property. In concrete practice, it is also possible to adopt 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, top belling platform is driven to rotate while advancing in core pipe tube chamber, top belling platform presses each drive surface to promote each paw by pushing up so that each top plate portion is moved radially outward along core pipe, thus clamping is arranged in the electric power cable in each clamp hole.
The present embodiment has following Advantageous Effects: (1) top pressure bolt and core pipe connect threadably, and push the drive surface of each paw by pushing up belling platform, and then promote each paw to move along core pipe radial direction; Its operation is comparatively laborsaving, and has good anti-loosening effect. (2) owing to crimp is to be arranged on core pipe by sliding, it is possible to first cable is placed in the arc clip slot of each paw, more corresponding crimp is loaded in corresponding anticreep chute, corresponding electric power cable can be placed in clamp hole; This structure makes the easy to operation of clamping electric power cable.
(embodiment 2)
The present embodiment and embodiment 1 are essentially identical, are different in that: as shown in Figure 8, and the present embodiment also includes current transformer 7; This current transformer includes toroidal inductive body 71 and intelligent control module 72; In the present embodiment, intelligent control module 72 is made has the ring-type of onesize vestibule with toroidal inductive body, annular perception sensing body and intelligent control module are arranged side by side combination and form annular, on the overall sheathed outer wall being fixed on pressing plate portion of current transformer, namely crimp assemblies is arranged in the vestibule that current transformer is overall. In concrete practice, current transformer also can be fixedly installed on the tube wall of core pipe, as long as making all clamp holes be arranged in the vestibule of toroidal inductive body, namely has only to so that the vestibule of cable traverse toroidal inductive body.
Intelligent control module can include wireless transmit/receive units, and the leakage current signal that intelligent control module is sensed toroidal inductive body by wireless transmit/receive units sends distance host to, to realize the long-range no worker monitor of precision, finds leak current fault in time.
The present embodiment can use as a zero sequence current mutual inductor.
(embodiment 3)
The present embodiment and embodiment 1 are essentially identical, are different in that: see shown in Fig. 9 to Figure 10, and the present embodiment also includes current transformer 7; This current transformer includes toroidal inductive body 71 and intelligent control module 72; In the present embodiment, on the annular perception sensing sheathed periphery wall being fixed on pressing plate portion of body; Between core tube wall, crimp and toroidal inductive body, clamping forms multiple containing cavity 73, and intelligent control module is arranged in containing cavity. This structure can make full use of space, is conducive to the small-sized and integrated of entirety.
Intelligent control module can include wireless transmit/receive units, and the leakage current signal that intelligent control module is sensed toroidal inductive body by wireless transmit/receive units sends distance host to, to realize the long-range no worker monitor of precision, finds leak current fault in time.
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 the restriction to embodiments of the present invention. For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description. Here without also cannot all of embodiment be given exhaustive. And the apparent change that these connotations belonging to the present invention are extended out or variation still fall within protection scope of the present invention.
Claims (1)
1. the electric power clamp gold utensil that a kind prevents cable from getting loose, it is characterised in that: include a top pressure 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, and this group pilot hole includes multiple radially-directed slide opening; 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 connecting 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; Each guide runner portion inserts on core pipe in a corresponding radially-directed slide opening, and each drive surface stretches in the tube chamber of core pipe, and each top plate portion is 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, and this top plate portion and this pressing plate portion clamping form a clamp hole for clamping electric power cable; Top pressure bolt includes body, the external screw thread district that is arranged on body peripheral wall and the top belling platform being arranged on body medial extremity, top 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; Drive surface and a corresponding top belling platform periphery wall of each paw are adaptive; Top pressure bolt also includes the fastening part being arranged on outer body end; This fastening part is hexagonal shape fastener head; Top axially extending along core pipe of belling platform, and it is arranged in core pipe tube chamber; The drive surface of each paw is one and pushes up the adaptive curved surface of belling platform periphery wall or inclined-plane; Each anticreep connecting portion slips in this group anticreep chute along core pipe axial direction; Top pressure bolt along preset direction rotate time, top belling platform is driven to rotate while advancing in core pipe tube chamber, top belling platform presses each drive surface to promote each paw by pushing up so that each top plate portion is moved radially outward along core pipe, thus clamping is arranged in the electric power cable in each clamp hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610099017.6A CN105633653A (en) | 2016-01-15 | 2016-01-15 | Electric power wire-clamping fitting capable of preventing cable from loosening |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610099017.6A CN105633653A (en) | 2016-01-15 | 2016-01-15 | Electric power wire-clamping fitting capable of preventing cable from loosening |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105633653A true CN105633653A (en) | 2016-06-01 |
Family
ID=56048344
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610099017.6A Withdrawn CN105633653A (en) | 2016-01-15 | 2016-01-15 | Electric power wire-clamping fitting capable of preventing cable from loosening |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105633653A (en) |
-
2016
- 2016-01-15 CN CN201610099017.6A patent/CN105633653A/en not_active Withdrawn
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20160601 |
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| WW01 | Invention patent application withdrawn after publication |