CN105680184A - Wire clamp for splicing overhead line - Google Patents
Wire clamp for splicing overhead line Download PDFInfo
- Publication number
- CN105680184A CN105680184A CN201610096217.6A CN201610096217A CN105680184A CN 105680184 A CN105680184 A CN 105680184A CN 201610096217 A CN201610096217 A CN 201610096217A CN 105680184 A CN105680184 A CN 105680184A
- Authority
- CN
- China
- Prior art keywords
- core pipe
- paw
- crimp
- plate portion
- core tube
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
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
- 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
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- 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
-
- 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
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- 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
Landscapes
- Clamps And Clips (AREA)
Abstract
The invention discloses a wire clamp for splicing an overhead line. The wire clamp comprises a base tube, a set of pressing claw assembly, a planar nut and a crimping part, wherein the crimping part is provided with a plate pressing part and an anti-dropping connecting part; the crimping part is detachably arranged on the core tube through the anti-dropping connecting part; the plate pressing part is positioned outside the core tube; radial limiting sliding holes are formed in the tube wall of the core tube; the pressing claw assembly comprises pressing claws that are combined with the crimping part to form cable-clamping holes; each pressing claw comprises a top plate part, a guiding sliding block part and a driving threaded part; the top plate part is positioned outside the core tube; each guiding sliding block part is inserted into one corresponding radial limiting sliding hole of the core tube; each driving threaded part extends to the tube cavity of the core tube; the planar nut is rotationally arranged in the tube cavity of the core tube; the planar nut comprises a planar threaded part that is meshed and adapted with the driving threaded part of each pressing claw; and the planar nut drives the pressing claws to move to be close to each other towards the center of the core tube or far away from each other. The wire clamp has an excellent anti-loosening effect.
Description
Technical field
The invention belongs to overhead transmission line electric armour clamp technical field, be specifically related to a kind of overhead transmission line connecting clip.
Background technology
In the construction of overhead power line, when cable Xu Zuo branch or when continuing, it is necessary to overhead transmission line connecting clip, two insulated conductors are linked together. Overhead transmission line connecting clip 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 insulated over-head line connecting clip to do cable branch, comprehensive benefit is obvious, and cost performance is better than conventional conventional coupling arrangement.
Traditional overhead transmission line connecting clip 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 conventional overhead circuit connecting clip there is also weak point, the pressure of clamp relies on the pressure of plain bolt assembly, and its fastness is poor, it is easy to loosen.
Summary of the invention
It is an object of the invention to provide one and there is better anti-loosening effect, be effectively ensured installation fastness, overhead transmission line connecting clip stable and reliable for performance.
The technical scheme realizing the object of the invention is: a kind of overhead transmission line connecting clip, including a core pipe, a set of paw assembly, a plane nut and at least one crimp; Crimp is provided with pressing plate portion and anticreep connecting portion; Crimp is arranged on core pipe by anticreep connecting portion is dismountable, and pressing plate portion is positioned at outside core pipe; The tube wall of core pipe is provided with radially spacing slide opening; Paw assembly includes the paw for forming clamp hole with crimp combination; Paw includes top plate portion, from the guide runner portion of the inwardly projecting formation of the inwall of top plate portion and the driving threaded portion that is arranged on guide runner portion; Top plate portion is positioned at outside core pipe, and the pressing plate portion clamping of top plate portion and a corresponding crimp forms a clamp hole for clamping electric power cable; Guide runner portion inserts on core pipe in a corresponding spacing slide opening of radial direction, drives threaded portion to stretch in the tube chamber of core pipe; Plane nut rotation is arranged in core pipe tube chamber; Plane nut includes driving threaded portion to engage the flat thread portion of adaptation with paw; Plane nut drives its flat thread portion reciprocating rotation, so the paw in driving pressure claw assembly towards core tube hub closer or far from, thus unclamping or clamping the electric power cable being arranged in clamp hole.
The present invention has positive effect: (1) present invention drives paw clamping electric power cable by flat thread portion, compare with by traditional bolt assembly clamping electric power cable, bigger pressure can be applied, and there is excellent anti-loosening effect, it is effectively ensured the reliability of long-term work.
Accompanying drawing explanation
Fig. 1 is a kind of perspective view of the first structure of the present invention;
Fig. 2 be wire clamp shown in Fig. 1 from another angle observe time a kind of perspective view;
Fig. 3 is a kind of front view of wire clamp shown in Fig. 1;
Fig. 4 is that shown in Fig. 1, the one of wire clamp partly cuts open structural representation;
Fig. 5 is a kind of explosive view of wire clamp shown in Fig. 1;
Fig. 6 be wire clamp shown in Fig. 1 from another angle observe time a kind of explosive view;
Fig. 7 is a kind of perspective view of the second structure of the present invention;
Fig. 8 be wire clamp shown in Fig. 7 from another angle observe time a kind of perspective view;
Fig. 9 is a kind of front view of wire clamp shown in Fig. 7;
Figure 10 is that shown in Fig. 7, the one of wire clamp partly cuts open structural representation.
Detailed description of the invention
(embodiment 1)
The present embodiment is a kind of overhead transmission line connecting clip, sees shown in Fig. 1 to Fig. 6, including a core pipe 2,3, plane nut 4 of a set of paw assembly and three crimps 1.
The tube wall of core pipe is provided with three spacing slide openings 22 of radial direction, and each radially spacing slide opening all extends radially through core tube wall along core pipe; Each radially spacing slide opening is positioned at core pipe middle part axially, and the radial cross-sectional shape of each radially spacing hole is I-shaped; The internal perisporium of core pipe is provided with the annular gear platform 23 of inwardly projecting formation.
Each crimp is provided with pressing plate portion 11 and anticreep connecting portion 12; Crimp is arranged on core pipe by anticreep connecting portion is dismountable; Pressing plate portion 11 is axially extending along core pipe, and the inwall in pressing plate portion is provided with arcuate groove 13, and 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, 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 periphery wall of core pipe is provided with multiple anticreep chute 24 for installing location crimp vertically; Each anticreep chute includes the mounting groove 241 that two radial sections are L-shaped; In the present embodiment, two adjacent anticreep chutes are oppositely arranged; Each mounting groove and a corresponding post plate are adaptive; The anticreep connecting portion of each crimp slips into a corresponding anticreep chute along core pipe axial direction from a side 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 the mode of clamping that fixing 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.
The inwall of a corresponding crimp is just arranged by each radially spacing slide opening.
Paw assembly includes the paw for forming clamp hole with crimp combination; In the present embodiment, paw assembly includes three paws 5, and each paw includes top plate portion 51, from the guide runner portion 52 of the inwardly projecting formation of the inwall of top plate portion and the driving threaded portion 53 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 511; Each paw top plate portion is positioned at outside core pipe, and just the pressing plate portion of a corresponding crimp is arranged; Each guide runner portion inserts on core pipe in a corresponding spacing slide opening of radial direction, in each tube chamber driving threaded portion to stretch to core pipe;Each paw reciprocatingly slides along the radial direction of core pipe under the guide and limit effect of radially spacing slide opening; The radial cross-sectional shape in each guide runner portion is adaptive with radial direction spacing hole I-shaped.
In the present embodiment, crimp is identical with the quantity of paw, and in concrete practice, the quantity of crimp and paw can be select between one to five, and the present embodiment selects three.
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 6, and each clamp hole is used for clamping an electric power cable. The present embodiment forms three clamp holes altogether, is used for clamping three 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.
Plane nut is arranged in core pipe tube chamber, and keeps off between platform in the driving threaded portion of each paw and core pipe; Plane nut includes driving threaded portion engage the flat thread portion 41 of adaptation and be positioned at the fastening part 42 of plane nut center with each paw, arranging flat thread portion on one side of the adjacent paw assembly of plane nut, another side of plane nut and core pipe gear platform slide adjacent; The periphery wall of plane nut and core inside pipe wall slide adjacent; Flat thread portion is annular, and flat thread portion is provided with archimedean spiral groove, the thread groove that driving threaded portion is provided with and this archimedean spiral groove is adaptive of paw assembly, each side driving threaded portion to be arranged on guide runner portion, place adjacent flat nut.
The present embodiment, in order to connect electricity from insulating power cable, is also provided with multiple puncture 7 in each arcuate groove and each arc clip slot; Specifically, respectively puncture along core pipe radially protruding. The existence punctured, it is possible to insulating power cable is not being 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 crimp is also 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; Such as in each arcuate groove and each arc clip slot, it is provided with multiple installation draw-in groove, then installed in draw-in groove be inlaid in corresponding one by the die-cut puncture sheet made, puncturing sheet include installation portion and sting blade, installation portion is inlaid in installation draw-in groove, and thorn blade then exposes installation draw-in groove and forms puncture. The benefit of this structure is to puncture sheet the material different with paw can be adopted to make, and especially selects and treats that same material used by clamp cable is made, being conducive to obtaining preferably electric property.
The fastening part of the present embodiment midplane nut is interior hexagonal shape fastener hole or interior hexagonal shape binding groove, and it is twisted operation and adopts inner hexagon spanner; In concrete practice, described fastening part just can adopt other shape, for instance square or in-line or quincunx, all can select.
Plane nut is in reciprocating rotation, drive its flat thread portion reciprocating rotation, and then drive each paw by engaging the driving threaded portion of adaptation, owing to each paw radial direction only along core pipe under the guide and limit effect of radially spacing slide opening moves back and forth, so that the move mode of each paw be close to each other towards core tube hub or away from, thus unclamping or clamping the electric power cable being arranged in each clamp hole.
When the present embodiment is on the overhead power line of high-altitude, be conducive to alleviating vibration;It addition, the present embodiment drives paw clamping electric power cable by flat thread portion, compare with by traditional bolt assembly clamping electric power cable, particularly excellent in anti-loosening effect, it is effectively ensured the reliability of long-term work. The present embodiment is be arranged on core pipe by sliding or snap fit due to crimp, 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: see shown in Fig. 7 to Figure 10, also sheathed on the periphery wall of each crimp in the present embodiment are fixed with current transformer 8; This current transformer 8 includes annular matrix 81 and intelligent control module 82, intelligent control module can include wireless transmit/receive units, when three electric power cables have leakage current, annular matrix will induce secondary current, and intelligent control module sends distance host by wireless transmit/receive units to this secondary current information; Intelligent control module is arranged on and is enclosed in the region formed by annular matrix inwall, core tube wall and crimp outer wall, thus making full use of space, is conducive to the small-sized and integrated of entirety.
The present embodiment entirety can use as high pressure zero sequence current mutual inductor, for detecting the existence of leakage current, finds leak current fault in time.
Obviously, the above embodiment of the present invention is only for clearly demonstrating example of the present invention, and is not the restriction to embodiments of the present invention. For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description. Here without also cannot all of embodiment be given exhaustive. And the 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. an overhead transmission line connecting clip, it is characterised in that: include a core pipe, a set of paw assembly, a plane nut and at least one crimp; Crimp is provided with pressing plate portion and anticreep connecting portion; Crimp is arranged on core pipe by anticreep connecting portion is dismountable, and pressing plate portion is positioned at outside core pipe; The tube wall of core pipe is provided with radially spacing slide opening; Paw assembly includes the paw for forming clamp hole with crimp combination; Paw includes top plate portion, from the guide runner portion of the inwardly projecting formation of the inwall of top plate portion and the driving threaded portion that is arranged on guide runner portion; Top plate portion is positioned at outside core pipe, and the pressing plate portion clamping of top plate portion and a corresponding crimp forms a clamp hole for clamping electric power cable; Guide runner portion inserts on core pipe in a corresponding spacing slide opening of radial direction, drives threaded portion to stretch in the tube chamber of core pipe; Plane nut rotation is arranged in core pipe tube chamber; Plane nut includes driving threaded portion to engage the flat thread portion of adaptation with paw; Plane nut drives its flat thread portion reciprocating rotation, so the paw in driving pressure claw assembly towards core tube hub closer or far from, thus unclamping or clamping the electric power cable being arranged in clamp hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610096217.6A CN105680184A (en) | 2016-01-15 | 2016-01-15 | Wire clamp for splicing overhead line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610096217.6A CN105680184A (en) | 2016-01-15 | 2016-01-15 | Wire clamp for splicing overhead line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105680184A true CN105680184A (en) | 2016-06-15 |
Family
ID=56305691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610096217.6A Withdrawn CN105680184A (en) | 2016-01-15 | 2016-01-15 | Wire clamp for splicing overhead line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105680184A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2793486Y (en) * | 2005-03-28 | 2006-07-05 | 郑春开 | Clasp cable device |
| CN202917711U (en) * | 2012-11-13 | 2013-05-01 | 北京振兴计量测试研究所 | Fastening fixture for tail cover of electric connector |
| CN204276947U (en) * | 2014-12-01 | 2015-04-22 | 温岭市深澳机床厂(普通合伙) | Scroll chuck |
| CN204578044U (en) * | 2015-05-20 | 2015-08-19 | 科都电气有限公司 | A kind of strain relief clamp connection device |
-
2016
- 2016-01-15 CN CN201610096217.6A patent/CN105680184A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2793486Y (en) * | 2005-03-28 | 2006-07-05 | 郑春开 | Clasp cable device |
| CN202917711U (en) * | 2012-11-13 | 2013-05-01 | 北京振兴计量测试研究所 | Fastening fixture for tail cover of electric connector |
| CN204276947U (en) * | 2014-12-01 | 2015-04-22 | 温岭市深澳机床厂(普通合伙) | Scroll chuck |
| CN204578044U (en) * | 2015-05-20 | 2015-08-19 | 科都电气有限公司 | A kind of strain relief clamp connection device |
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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 | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20160615 |