CN105846148A - Improved electric power fitting - Google Patents
Improved electric power fitting Download PDFInfo
- Publication number
- CN105846148A CN105846148A CN201610099023.1A CN201610099023A CN105846148A CN 105846148 A CN105846148 A CN 105846148A CN 201610099023 A CN201610099023 A CN 201610099023A CN 105846148 A CN105846148 A CN 105846148A
- Authority
- CN
- China
- Prior art keywords
- core pipe
- paw
- tube
- plate portion
- pressing plate
- 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.)
- Pending
Links
Classifications
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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
- 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
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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
- 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
- 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
-
- 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
- Insulating Bodies (AREA)
Abstract
The invention discloses an improved electric power fitting, which includes a base tube, a core tube, two crimping pieces and two pressing claw assembly sets. The inner circumferential wall of the base tube is provided with a plurality of wire clamping bosses. The core tube is located in a cavity of the base tube. Two groups of guide holes are disposed in the wall of the core tube. Each group of guide holes comprises a plurality of radial limit slide holes. Two internal thread regions are disposed on the inner wall of the core tube. Each pressing claw assembly set comprises a plurality of pressing claws. Each pressing claw comprises a pressing plate portion, a guide slider portion and a drive surface. Each crimping piece comprises a body, an external thread region on the outer circumferential wall of the body and a crimping boss disposed on the inner side end of the cylindrical body. The external thread regions of the crimping pieces are adaptive to the internal thread regions of the core tube. The drive surface of each pressing claw is adaptive to the outer circumferential wall of each crimping boss. When each crimping piece rotates along a preset direction, the pressing plate portion of each pressing claw is pushed to move outward along a radial direction of the core tube. The improved electric power fitting has a new structure, and is firm, stable and reliable in mounting.
Description
Technical field
The invention belongs to electric armour clamp technical field, be specifically related to a kind of modified model electric armour clamp.
Background technology
In the construction of overhead power line, when cable Xu Zuo branch or when continuing, need to be linked together by two insulated conductors with gold utensil.Gold utensil has simple installation, low cost, safe and reliable non-maintaining feature.Without blocking leader cable, can do cable branch without peelling off the insulating barrier of cable, joint is completely insulated, can 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, anticorrosion is 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 the most 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, easily loosens.
Summary of the invention
It is an object of the invention to provide a kind of brand new, the modified model electric armour clamp that fastness is reliable and stable is installed.
The technical scheme realizing the object of the invention is: a kind of modified model electric armour clamp, including a base tube, a core pipe, two crimps and two casing pressure claw assemblies；The internal perisporium of base tube is provided with multiple clamp boss；Core pipe is positioned in base tube tube chamber；The tube wall of core pipe is provided with two groups of pilot holes, and each group pilot hole includes the spacing slide opening of multiple radial direction；The inwall of core pipe is provided with two internal threaded regions；Each casing pressure claw assembly all includes multiple paw；Each paw includes pressing plate portion, protrudes the guide runner portion formed and the drive surface being arranged on guide runner portion from pressing plate portion；Each guide runner portion inserts on core pipe in a corresponding spacing slide opening of radial direction, and each drive surface stretches in the tube chamber of core pipe, and each pressing plate portion is positioned between base tube inwall and core tube wall；Pressing plate portion and a corresponding clamp boss clamping of each paw form one for the clamp hole clamping electric power cable；Each crimp includes body, be arranged on body peripheral wall external screw thread district and the crimping boss being arranged on cylindrical body medial extremity, the external screw thread district of crimp and the internal threaded regions of core pipe are adaptive；The periphery wall of the drive surface of each paw and crimping boss is adaptive；Each crimp along preset direction rotate time, crimping boss is driven to rotate while advancing in core pipe tube chamber, crimping boss promotes each paw by pushing the drive surface in corresponding a set of paw assembly, pressing plate portion in corresponding a set of paw assembly is moved radially outward along core pipe, thus clamping is positioned at the electric power cable in clamp hole.
The present invention has positive effect: (1) crimp and core pipe connect threadably, and is pushed the drive surface of each paw by crimping boss, and then promotes each paw to move along core pipe radial direction；Its operation is the most laborsaving, and has preferable anti-loosening effect.(2) present invention uses two casing pressure claw assemblies to be clamped on same cable, the clamp operation of each casing pressure claw assembly can individually be carried out, this structure has the effect of double shield, in use goes wrong even if the most a set of, its service behaviour of the most another set of guarantee.
Accompanying drawing explanation
Fig. 1 is a kind of perspective view of the first structure of the present invention；
Fig. 2 is that shown in Fig. 1, the one of gold utensil faces structural representation；
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 after gold utensil shown in Fig. 1 removes base tube and crimp；
Fig. 6 is that the one of the second structure of the present invention partly cuts open structural representation；
Fig. 7 is that the one of the third structure of the present invention partly cuts open structural representation；
Fig. 8 is that shown in Fig. 7, the one of gold utensil faces structural representation.
Detailed description of the invention
(embodiment 1)
The present embodiment is a kind of modified model electric armour clamp, as shown in Fig. 1 to Fig. 5, including a base tube 2, two crimps of 1, core pipe 3 and two casing pressure claw assemblies 8.
The internal perisporium of base tube is provided with four clamp boss 11, and the inwall of each clamp boss is provided with arcuate groove 111, and each clamp boss and arcuate groove are all axially extending along base tube.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 core pipe is positioned in base tube tube chamber；The periphery wall of core pipe is provided with four support flanges 21 extended along base tube radially protruding, and 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 tube wall of core pipe is provided with two groups of pilot holes, and each group pilot hole and a set of paw assembly are adaptive；Each group pilot hole includes four spacing slide openings of radial direction 22, and these four spacing slide openings of radial direction are evenly distributed on core tube wall along core pipe circumference；Each radially spacing slide opening all extends radially through core tube wall along base tube；Each radially spacing slide opening be positioned at core pipe axially on middle part, the cross sectional shape of each radially spacing slide opening is I-shaped.The inwall of core pipe is provided with two internal threaded regions 23, and two groups of pilot holes are between two internal threaded regions；In the present embodiment, two internal threaded regions are arranged on the inwall at core pipe two side ends adjacent openings.
In concrete practice, the cross sectional shape guiding slide opening may be used without other shape, the most circular, square, rhombus, is all feasible.
Each casing pressure claw assembly 8 includes four paws 4；Each paw includes pressing plate portion 41, the guide runner portion 42 of the inwardly projecting formation of inwall from pressing plate portion and the drive surface 43 being arranged on guide runner portion；Pressing plate portion is axially extending along base tube, and guide runner portion radially extends along base tube；The outer wall in each paw pressing plate portion is provided with arc clip slot 411；Each guide runner portion inserts on core pipe in a corresponding spacing slide opening of radial direction, and each drive surface stretches in the tube chamber of core pipe, and each pressing plate portion is positioned between base tube inwall and core tube wall；Each paw radial direction along base tube under the guide and limit effect of radially spacing slide opening reciprocatingly slides；The cross sectional shape in each guide runner portion is adaptive with radially spacing slide opening I-shaped.
A corresponding clamp boss clamping in each pressing plate portion and base tube forms one for the clamp hole 5 clamping electric power cable；In the present embodiment, the arc clip slot in each pressing plate portion and the arcuate groove clamping of a corresponding clamp boss form the clamp hole 5 for clamping electric power cable；The present embodiment forms four clamp holes altogether.
Each crimp 3 includes cylindrical body 31, the external screw thread district 32 being arranged on cylindrical body periphery wall, the fastening part 33 being arranged on cylindrical body outboard end and the crimping boss 34 being arranged on cylindrical body medial extremity, crimping boss be shaped as circular cone shape；The external screw thread district of each crimp and the internal threaded regions of core pipe are adaptive；Crimping axially extending along base tube of boss, 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 crimping boss periphery wall adaptation, and in concrete practice, this drive surface also can be selected for inclined-plane.
In the present embodiment, in each casing pressure claw assembly, the quantity of paw is identical with the quantity guiding slide opening in each group of pilot hole, can select between two to five.
The present embodiment, in order to connect electricity on insulating power cable or promote chuck strength, is also provided with multiple puncture 6 in each arc clip slot and arcuate groove；Specifically, each puncture is along the radially protruding of core pipe.The existence punctured, can effectively connect electricity without insulating power cable is carried out peeling process.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 draw-in groove, then installs in draw-in groove being 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 used to make, and especially selects and treats that same material used by clamp cable is made, being conducive to obtaining preferable 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.
Each crimp along preset direction rotate time, crimping boss is driven to rotate while advancing in core pipe tube chamber, each crimping boss promotes paw by pushing the drive surface in corresponding a set of paw assembly, each pressing plate portion in corresponding a set of paw assembly is moved radially outward along core pipe, thus clamping is positioned at the electric power cable in each clamp hole.
The present embodiment has following Advantageous Effects: (1) crimp and core pipe connect threadably, and is pushed the drive surface of each paw by crimping boss, and then promotes each paw to move along core pipe radial direction；Its operation is the most laborsaving, and has preferable anti-loosening effect.(2) present invention uses two casing pressure claw assemblies to be clamped on same cable, the clamp operation of each casing pressure claw assembly can individually be carried out, this structure has the effect of double shield, in use goes wrong even if the most a set of, its service behaviour of the most another set of guarantee.
(embodiment 2)
The present embodiment and embodiment 1 are essentially identical, and difference is: as shown in Figure 6, 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, and annular perception sensing body and intelligent control module are arranged side by side combination and form annular, on the overall sheathed periphery wall being fixed on base tube of current transformer.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 positioned in the vestibule of toroidal inductive body, namely has only to so that cable passes the vestibule of toroidal inductive body.
Intelligent control module can include wireless transmit/receive units, and the leakage current signal that intelligent control module is sensed annular base tube by wireless transmit/receive units sends distance host to, to realize accurate long-range no worker monitor, 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, and difference is: as shown in Fig. 7 to Fig. 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, on the annular perception sensing sheathed periphery wall being fixed on base tube of body；The periphery wall of base tube is provided with the routing hole 13 extending radially through tube wall；Base tube inwall, core tube wall, clamp outer wall of boss, support between flange outer wall, paw pressing plate portion outer wall clamping form multiple containing cavity 73, intelligent control module is arranged in containing cavity；Electric connection line between toroidal inductive body and intelligent control module passes described routing hole.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 annular base tube by wireless transmit/receive units sends distance host to, to realize accurate long-range no worker monitor, 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 obvious 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. a modified model electric armour clamp, it is characterised in that: include a base tube, a core pipe, two crimps and
Two casing pressure claw assemblies；The internal perisporium of base tube is provided with multiple clamp boss；Core pipe is positioned in base tube tube chamber；On the tube wall of core pipe
Being provided with two groups of pilot holes, each group pilot hole includes the spacing slide opening of multiple radial direction；The inwall of core pipe is provided with two internal threaded regions；
Each casing pressure claw assembly all includes multiple paw；Each paw include pressing plate portion, from pressing plate portion protrude formed guide runner portion and
It is arranged on the drive surface in guide runner portion；Each guide runner portion inserts on core pipe in a corresponding spacing slide opening of radial direction, respectively
Drive surface stretches in the tube chamber of core pipe, and each pressing plate portion is positioned between base tube inwall and core tube wall；The pressing plate portion of each paw
One is formed for the clamp hole clamping electric power cable with a corresponding clamp boss clamping；Each crimp includes body, sets
Put the external screw thread district on body peripheral wall and the crimping boss being arranged on cylindrical body medial extremity, the external screw thread of crimp
The internal threaded regions of district and core pipe is adaptive；The periphery wall of the drive surface of each paw and crimping boss is adaptive；Each crimp is along presetting
When direction rotates, driving crimping boss to rotate and advance in core pipe tube chamber, crimping boss is corresponding by pushing
Drive surface in a set of paw assembly promotes each paw so that the pressing plate portion in corresponding a set of paw assembly along core caliber to
Outer movement, thus clamping is positioned at the electric power cable in clamp hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610099023.1A CN105846148A (en) | 2016-01-15 | 2016-01-15 | Improved electric power fitting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610099023.1A CN105846148A (en) | 2016-01-15 | 2016-01-15 | Improved electric power fitting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105846148A true CN105846148A (en) | 2016-08-10 |
Family
ID=56588089
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610099023.1A Pending CN105846148A (en) | 2016-01-15 | 2016-01-15 | Improved electric power fitting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105846148A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104607681A (en) * | 2013-11-03 | 2015-05-13 | 西安志越机电科技有限公司 | Thin-wall round pipe turning and clamping device |
-
2016
- 2016-01-15 CN CN201610099023.1A patent/CN105846148A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104607681A (en) * | 2013-11-03 | 2015-05-13 | 西安志越机电科技有限公司 | Thin-wall round pipe turning and clamping device |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160810 |