CN109216950A - A kind of power engineering earthing or grounding means - Google Patents

A kind of power engineering earthing or grounding means Download PDF

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Publication number
CN109216950A
CN109216950A CN201811114615.1A CN201811114615A CN109216950A CN 109216950 A CN109216950 A CN 109216950A CN 201811114615 A CN201811114615 A CN 201811114615A CN 109216950 A CN109216950 A CN 109216950A
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CN
China
Prior art keywords
pressure cap
nut
lead wire
groove
stud
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Granted
Application number
CN201811114615.1A
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Chinese (zh)
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CN109216950B (en
Inventor
黄欢
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Sichuan Zhi Chuang Intellectual Property Operation Co Ltd
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Sichuan Zhi Chuang Intellectual Property Operation Co Ltd
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Priority to CN201811114615.1A priority Critical patent/CN109216950B/en
Publication of CN109216950A publication Critical patent/CN109216950A/en
Application granted granted Critical
Publication of CN109216950B publication Critical patent/CN109216950B/en
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00Electrically-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
    • H01R4/28Clamped connections, spring connections
    • H01R4/30Clamped connections, spring connections utilising a screw or nut clamping member
    • H01R4/304Clamped connections, spring connections utilising a screw or nut clamping member having means for improving contact
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R11/00Individual 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
    • H01R11/11End pieces or tapping pieces for wires, supported by the wire and for facilitating electrical connection to some other wire, terminal or conductive member
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00Electrically-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
    • H01R4/58Electrically-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 characterised by the form or material of the contacting members
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00Electrically-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
    • H01R4/58Electrically-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 characterised by the form or material of the contacting members
    • H01R4/66Connections with the terrestrial mass, e.g. earth plate, earth pin

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  • Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)

Abstract

The invention discloses a kind of power engineering earthing or grounding means, including ground anchor pole and wire connecting portion, the wire connecting portion includes terminal plate and wire portion, and it further includes pressure cap that the wire portion, which includes stud, nut and lead wire,;The pressure cap is set on stud, and pressure cap is between the connector lug and nut;A plurality of axial groove in a strip shape is additionally provided on the outside of the pressure cap, one end of the axial groove connects with one end of pressure cap, and the other end of axial groove connects with the other end of pressure cap;A plurality of axial groove is circular layout on the lateral surface of pressure cap;It further include lantern ring, the lantern ring is set on pressure cap;Ring set is additionally provided with shelves edge annular in shape on one end of nut, and the shelves edge forms step surface annular in shape on the lateral surface of lantern ring;The end face of the nut is in contact with the end face of pressure cap, and the end face of lantern ring is located at the outside of nut end face.The connection of this earthing or grounding means lead wire is reliable, the readily available guarantee of lead wire link position electric conductivity.

Description

A kind of power engineering earthing or grounding means
Technical field
The present invention relates to electric electric power project engineering fields, more particularly to a kind of power engineering earthing or grounding means.
Background technique
Existing electric system and rear end electrical equipment generally require to add earthing or grounding means during operation and maintenance with reality Existing system earth connection, equipment ground electrical connection.Such as: in carrying out cable maintenance process, for the person peace for ensureing service personnel Entirely, it is desirable that corresponding maintenance route is grounded before maintenance, to avoid because misdelivery supplies electricity to service personnel and causes electric injury Evil;When electrical appliance is checked and overhauled in use, also there is the case where temporary grounding.
Temporary grounding earth anchor may be embedded near grounding point, for this in the prior art for corresponding earthing or grounding means Occasion connects ground connection earth anchor with corresponding such as cable or equipment using electric connection line.But in most cases, especially for electric power Wired earth, scene generally do not have pre-buried ground connection anchor, in this case, general anchor into the earth using provisionally anchor pole, by drawing Corresponding conducting by maintenance route and the earth is completed in wiring connection.
The structure design for advanced optimizing earthing or grounding means, is those skilled in the art to optimize the electric conductivity of earthing or grounding means Member institute urgent problem to be solved.
Summary of the invention
For the structure design for advanced optimizing earthing or grounding means set forth above, to optimize the electric conductivity of earthing or grounding means, The problem of being those skilled in the art institute urgent problem to be solved, the present invention provides a kind of power engineering earthing or grounding means, originally connect Device lead wire connection in ground is reliable, the readily available guarantee of lead wire link position electric conductivity.
A kind of power engineering earthing or grounding means, including ground anchor pole and the wire connecting portion being installed on ground anchor pole, the wire connecting portion packet Terminal plate and wire portion are included, the wire portion includes stud, nut and lead wire, and the terminal plate is electrically connected with ground anchor pole, spiral shell One end of column is welded on terminal plate, and nut is threadedly connected on stud, and the connector lug of the lead wire is held in terminal plate Further include pressure cap between nut, the material of the pressure cap is copper or aluminium, the stud, nut material be carbon steel, pressure cap shape Shape is annular in shape;
The pressure cap is set on stud, and pressure cap is between the connector lug and nut;
It is additionally provided with a plurality of axial groove in a strip shape on the outside of the pressure cap, one end of the axial groove and pressure cap One end connects, and the other end of axial groove connects with the other end of pressure cap;
A plurality of axial groove is circular layout on the lateral surface of pressure cap;
It further include lantern ring, the lantern ring is set on pressure cap;
Ring set is additionally provided with shelves edge annular in shape on one end of nut, and the shelves edge is formed on the lateral surface of lantern ring Step surface annular in shape;
The end face of the nut is in contact with the end face of pressure cap, and the end face of lantern ring is located at the outside of nut end face.
In the prior art, for the electric power grounding device being temporarily arranged, general using ground anchor pole anchorage, lead wire is as ground Anchor pole and the corresponding electric connection line by between maintenance route, the device being grounded.In view of ground anchor pole anchorage Convenience, being traditionally arranged to be the connection relationship between ground anchor pole and lead wire is to be detachably connected relationship: on ground, anchor pole anchors into ground Before face, lead wire and ground anchor pole are detached from, and are caused during anchoring into and avoid ground anchor pole to anchor into easily anchor pole to lead wire It destroys;The separation of lead wire and ground anchor pole is completed, first before the extraction of ground anchor pole to facilitate extraction ground anchor pole and avoid ground anchor pole Lead wire is damaged in withdrawal process.
However in the prior art, is wiring is arranged in the connection type of the terminal plate and lead wire that generally use on terminal plate Seat, the junction block include the plug wire cylinder in quarter bend shape, and plug wire cylinder is fixedly connected with terminal plate, on plug wire cylinder connection one or More line pressing bolts, by real for lead wire application pressure by line pressing bolt after the terminals of lead wire are inserted into plug wire cylinder Existing lead wire is fixedly connected with junction block.In the above connection type, due to the diameter of line pressing bolt should not be arranged it is too much, therefore The diameter of actually line pressing bolt defines the area between lead wire and plug wire cylinder, line pressing bolt with normal pressure, so that drawing The connection reliability of wiring and junction block is poor, and link position resistance value of the lead wire on earthing or grounding means is larger, not only unfavorable In the safety that earthing or grounding means uses, while being unfavorable for the ground connection performance of earthing or grounding means.
In the present solution, the wire portion on the terminal plate is the interconnecting piece on terminal plate for being electrically connected with lead wire, Such as by the end of lead wire, i.e., terminals coiling one around the lantern ring of stud, directly by the end bifurcated of lead wire simultaneously So that stud is located in the prong of lead wire, is directly inserted into the end of lead wire in the gap of pressure cap and terminal plate, then pass through Nut adjusts position of the pressure cap on stud axis, being electrically connected by pressure cap and terminal plate realization lead wire and terminal plate It connects.
Be set as by rotating the nut, nut and terminal plate close to during, by the terminals folder of lead wire It holds between nut and terminal plate.Meanwhile being set as further including pressure cap, the pressure cap is set on stud, and pressure cap is located at wiring Head nut between, while be set as pressure cap material be copper or aluminium, the stud, nut material be carbon steel, in this way, in spiral shell During cap squeezes pressure cap, may make pressure cap to generate plastic deformation with increase pressure cap and lead wire, pressure cap and stud, pressure cap with Contact area between nut is to improve the electric conductivity between lead wire and terminal plate.
Due to pressure cap deform under the action of nut rear pressing cap can be adhered on stud or with stud formed tight fit Relationship, the removal of above bonding and tight fit relationship affect connector lug and Stud connection relationship, therefore being set as further includes being set to A plurality of axial groove on the outside of pressure cap passes through pincers worker flat chisel, pincers worker crowbar when the above axial groove is separated for connector lug with stud Equal tools, destroy pressure cap make it become non-close ring and easily by pressure cap by being removed on stud.In the present solution, being set as axis Be to slot it is multiple, and annular spread on pressure cap, aloow operator by facilitating the angle of operation to destroy pressure cap or side Pressure cap being destroyed for muti-piece just.
As described above, this programme needs to squeeze pressure cap by nut when in use so that it generates plastic deformation optimization The electrical connection performance of lead wire and ground anchor pole, while including axial groove on the pressure cap, to avoid nut from squeezing pressure cap mistake The full circle ring structure of pressure cap is destroyed and is influenced the electrical connection performance of lead wire and stud in journey, in the present solution, being set as It further include lantern ring, the above lantern ring is the hoop being sheathed on on the outside of pressure cap, for providing constraint for pressure cap radial deformation, to protect Hold the integrity that nut squeezes pressure cap full circle ring structure during pressure cap.
As noted previously, as the connection relationship for finally removing lead wire and stud needs to destroy the pressure cap, and pressure cap becomes Tight fit relationship is formed after shape between lantern ring and pressure cap, therefore is also set up on one end of nut in the present solution, being set as ring set There is shelves edge annular in shape, the shelves edge forms step surface annular in shape on the lateral surface of lantern ring.In this way, destroy pressure cap it Before, the step surface is tapped to complete the separation of lantern ring and pressure cap by percussion tool first, the percussion power side such as tapped above To the axis direction along stud and the free end towards stud, pressure cap is carried out again after lantern ring is separated with pressure cap and is abolished.I.e. with The upper lantern ring scheme including shelves edge is easy to implement the separation of pressure cap and lantern ring.
Further technical solution are as follows:
The pressure cap is provided with multiple grooves on the end face of one end of terminal plate, and each groove is equal are as follows: one end of groove Connect with the centre bore on pressure cap, connects on the outside of the other end and pressure cap of groove;
The grove shaped circumferential is arranged on the end face of pressure cap;
The lead wire is twisted wire.In the present solution, the twisted wire is stranded conductor, being set as lead wire is twisted wire, no Only facilitate earthing or grounding means according to actual environment definitely anchor pole anchorage position using the flexibility of twisted wire, meanwhile, quilt on lead wire The shape of the paragraph that pressure cap is clamped with earth plate is prone to deform when being pressurized, and can reach in this way and improves lead wire and pressure cap, draws The purpose of wiring and terminal plate contact area;Be set as pressure cap also has groove on one end of terminal plate, not with upper groove The contact area of pressure cap corresponding end end and lead wire can only be expanded, while the position by limiting each groove both ends, multiple recessed Arrangement state of the slot in pressure cap end connects not removing pressure cap to drawing after lead wire compression is deformed locally embedding groove In the case that wire clamp is tight, can avoid lead wire in dragging with terminal plate Joint failure.
To sum up, due to including groove on pressure cap, lead wire has the characteristics that connection is reliable on this earthing or grounding means;Due to we Lead wire directly can be contacted directly with terminal plate, pressure cap and stud in case, simultaneously as including groove on pressure cap, lead wire connects It connects position and obtains bigger contact area due to being easier to, aloow the electric conductivity of earthing or grounding means using the above structure more For readily available guarantee.
Being preferably arranged to the lead wire is by strand copper wire twisted wire, in this way, can be optimized using the characteristics of copper wire mutability Lead wire and terminal plate, stud, the electrical connection properties between pressure cap three.
To avoid pressure cap during squeezing lead wire, composition lead wire is caused because lead wire local pressure is excessive Solid conductor be cut off and influence lead wire and ground anchor pole electrical connection quality, setting are as follows: the groove face and pressure cap of the groove End face smoothly transit.
As a kind of implementation easy to process, setting are as follows: the groove is strip groove, and the length side of each groove To the radial direction for being respectively positioned on pressure cap.
To enable pressure cap that there is bigger contact area close to one end of lead wire and lead wire, while making pressure cap One end close to terminal plate is under the action of nut, radial direction in pressure cap end, between pressure cap end each point and lead wire More uniform pressure is all had to obtain lead wire and the bigger conductive area of pressure cap, is arranged are as follows: the pressure cap is set in middle part It is equipped with the circular cone shape of centre bore, the biggish one end of pressure cap face area is towards terminal plate.Preferably, it is outer for being set as lantern ring also Shape is in circular cone shape, meanwhile, the length of lantern ring and the equal length of pressure cap, the size of lantern ring are as follows: after pressure cap and lantern ring cooperation, set The medial surface of ring and the lateral surface of pressure cap are all affixed, in this way, the deformation of pressure cap each point can be constrained as far as possible by lantern ring.It is excellent Choosing, the bottom for being set as the axial groove has top, the i.e. section triangular shape of axial groove, in this way, deforming in pressure cap In the process, it is concentrated using the stress of the above top position, so that pressure cap cracks and facilitates subsequent pressure cap by stud It abolishes and separates.
To make as that can be conducive to draw connect by packing carbon powder in the gap between lead wire and pressure cap, terminal plate, stud Electrical connection properties between line and ground anchor pole, the wire portion further include cartridge, and the cartridge is fixedly connected with terminal plate, The stud, pressure cap are respectively positioned in cartridge.This programme when in use, is used to contain carbon dust in the cartridge.
Wire portion be it is multiple, each cartridge is in the container-like of direction that be open, and is provided in the box wall of each cartridge Connecting groove;
Communicating passage of the connecting groove as cartridge medial and lateral, the lead wire on each wire portion is by corresponding to connecting groove It introduces in cartridge, the upper end of cartridge where the notch end of each connecting groove is respectively positioned on;
The connecting position for opening up position and being respectively positioned on each cartridge and terminal plate of connecting groove on each cartridge.In the present solution, Be set as the wire portion be it is multiple, in this way, convenient for multiple lead wire tie points are obtained on terminal plate with realize ground anchor pole with By maintenance route, by the device of carry out electrical test, lightning conducter, be implemented the equipment of leakage protection and drawn by more and connect Line is connected;With realize ground anchor pole with more or it is multiple by maintenance route, by the device of carry out electrical test, lightning conducter, The equipment for being implemented leakage protection is connected by single or more lead wire, while may make what each lead wire was connect with ground anchor pole Terminals without influence, are easy to implement each lead wire and connect with the ground equal high quality of anchor pole between each other.
It is embedded into earth's surface following certain depth to enable ground anchor pole more easily to pass through hard ground, is arranged Are as follows: spiral spiral cord is additionally provided on the side on the downside of described ground anchor pole;
Turning handle is further fixed on the upside of described ground anchor pole;
The lower end of described ground anchor pole is tip.In the present solution, applying torque on ground anchor pole by the turning handle, may make Ground anchor pole is guided from spiral cord in the course of rotation and is easily embedded in underground;Ground anchor pole insertion can be reduced with upper prong Resistance in the process.
As a kind of connection scheme being easily achieved and can guarantee electrical connection properties, setting are as follows: the terminal plate passes through weldering It connects and is connected with ground anchor pole in succession.
During making rotating screw cap, pressure cap is avoided to influence between pressure cap and lead wire with cap rotation as far as possible Electrical connection properties destroy lead wire, setting are as follows: the end face of one end on the pressure cap for connecting with nut is shiny surface.
Preferably, the material for being set as pressure cap is copper, i.e., the described pressure cap is copper ring.
The invention has the following advantages:
In the present solution, be set as by rotating the nut, nut and terminal plate close to during, by lead wire Terminals are clamped between nut and terminal plate.Meanwhile being set as further including pressure cap, the pressure cap is set on stud, pressure cap Between connector lug and nut, at the same be set as pressure cap material be copper or aluminium, the stud, nut material be carbon steel, In this way, may make pressure cap to generate plastic deformation to increase pressure cap and lead wire, pressure cap and spiral shell during nut squeezes pressure cap Contact area between column, pressure cap and nut is to improve the electric conductivity between lead wire and terminal plate.
Due to pressure cap deform under the action of nut rear pressing cap can be adhered on stud or with stud formed tight fit Relationship, the removal of above bonding and tight fit relationship affect connector lug and Stud connection relationship, therefore being set as further includes being set to A plurality of axial groove on the outside of pressure cap passes through pincers worker flat chisel, pincers worker crowbar when the above axial groove is separated for connector lug with stud Equal tools, destroy pressure cap make it become non-close ring and easily by pressure cap by being removed on stud.In the present solution, being set as axis Be to slot it is multiple, and annular spread on pressure cap, aloow operator by facilitating the angle of operation to destroy pressure cap or side Pressure cap being destroyed for muti-piece just.
As described above, this programme needs to squeeze pressure cap by nut when in use so that it generates plastic deformation optimization The electrical connection performance of lead wire and ground anchor pole, while including axial groove on the pressure cap, to avoid nut from squeezing pressure cap mistake The full circle ring structure of pressure cap is destroyed and is influenced the electrical connection performance of lead wire and stud in journey, in the present solution, being set as It further include lantern ring, the above lantern ring is the hoop being sheathed on on the outside of pressure cap, for providing constraint for pressure cap radial deformation, to protect Hold the integrity that nut squeezes pressure cap full circle ring structure during pressure cap.
As noted previously, as the connection relationship for finally removing lead wire and stud needs to destroy the pressure cap, and pressure cap becomes Tight fit relationship is formed after shape between lantern ring and pressure cap, therefore is also set up on one end of nut in the present solution, being set as ring set There is shelves edge annular in shape, the shelves edge forms step surface annular in shape on the lateral surface of lantern ring.In this way, destroy pressure cap it Before, the step surface is tapped to complete the separation of lantern ring and pressure cap by percussion tool first, the percussion power side such as tapped above To the axis direction along stud and the free end towards stud, pressure cap is carried out again after lantern ring is separated with pressure cap and is abolished.I.e. with The upper lantern ring scheme including shelves edge is easy to implement the separation of pressure cap and lantern ring.
Detailed description of the invention
Fig. 1 is to reflect pressure cap, lantern ring two in one specific embodiment of a kind of power engineering earthing or grounding means of the present invention The partial schematic diagram of both person's structure and pressure cap, lantern ring matching relationship, the schematic diagram are explosive view;
Fig. 2 is a kind of partial schematic diagram of one specific embodiment of power engineering earthing or grounding means of the present invention, the office The structure and wire portion and terminal plate connection relationship of portion's schematic diagram reflection wire portion;
Fig. 3 is a kind of structural schematic diagram of one specific embodiment of power engineering earthing or grounding means of the present invention;
Fig. 4 is the side view of lantern ring in one specific embodiment of a kind of power engineering earthing or grounding means of the present invention.Figure In appended drawing reference successively are as follows: 1, pressure cap, 11, groove, 12, axial groove, 2, lead wire, 3, terminal plate, 4, cartridge, 41, connect Wire casing, 5, nut, 6, lantern ring, 61, shelves edge, 7, stud, 8, anchor pole, 9, turning handle, 10, spiral cord.
Specific embodiment
Below with reference to embodiment, the present invention is described in further detail, but structure of the invention be not limited only to it is following Embodiment.
Embodiment 1:
As shown in Figures 1 to 4, a kind of power engineering earthing or grounding means including ground anchor pole 8 and is installed on connecing on ground anchor pole 8 Line portion, the wire connecting portion include terminal plate 3 and wire portion, and the wire portion includes stud 7, nut 5 and lead wire 2, described to connect Line plate 3 is electrically connected with ground anchor pole 8, and one end of stud 7 is welded on terminal plate 3, and nut 5 is threadedly connected on stud 7, described to draw The connector lug of wiring 2 is held between terminal plate 3 and nut 5, further includes pressure cap 1, and the material of the pressure cap 1 is copper or aluminium, The stud 7, nut 5 material be carbon steel, 1 shape of pressure cap is annular in shape;
The pressure cap 1 is set on stud 7, and pressure cap 1 is between the connector lug and nut 5;
Be additionally provided with a plurality of axial groove 12 in a strip shape on the outside of the pressure cap 1, one end of the axial groove 12 with One end of pressure cap 1 connects, and the other end of axial groove 12 connects with the other end of pressure cap 1;
A plurality of axial groove 12 is circular layout on the lateral surface of pressure cap 1;
It further include lantern ring 6, the lantern ring 6 is set on pressure cap 1;
Ring set is additionally provided with shelves annular in shape along 61 on one end of nut 5, the shelves along 61 lantern ring 6 lateral surface It is upper to form step surface annular in shape;
The end face of the nut 5 is in contact with the end face of pressure cap 1, and the end face of lantern ring 6 is located at the outside of 5 end face of nut.
In the prior art, general using ground 8 anchorage of anchor pole, 2 conduct of lead wire for the electric power grounding device being temporarily arranged Ground anchor pole 8 and the corresponding electric connection line by between maintenance route, the device being grounded.In view of 8 anchor of ground anchor pole The convenience on ground, being traditionally arranged to be the connection relationship between ground anchor pole 8 and lead wire 2 is to be detachably connected relationship: the anchor pole 8 on ground It anchors into before ground, lead wire 2 and ground anchor pole 8 are detached from, right during anchoring into and avoid ground anchor pole 8 to anchor into easily anchor pole 8 Lead wire 2 damages;The separation of lead wire 2 and ground anchor pole 8 is completed, first before the extraction of ground anchor pole 8 to facilitate extraction earth anchor Bar 8 and avoid ground 8 withdrawal process of anchor pole in lead wire 2 is damaged.
However in the prior art, the connection type of the terminal plate 3 generally used and lead wire 2 is is arranged on terminal plate 3 Junction block, the junction block include the plug wire cylinder in quarter bend shape, and plug wire cylinder is fixedly connected with terminal plate 3, connects on plug wire cylinder One or more line pressing bolts, by being applied after the terminals of lead wire 2 are inserted into plug wire cylinder by line pressing bolt for lead wire 2 Plus-pressure realization lead wire 2 is fixedly connected with junction block.In the above connection type, since the diameter of line pressing bolt should not be arranged It is too much, therefore the diameter of actually line pressing bolt defines the face between lead wire 2 and plug wire cylinder, line pressing bolt with normal pressure Product so that lead wire 2 and the connection reliability of junction block are poor, link position resistance value of the lead wire 2 on earthing or grounding means compared with Greatly, the safety used not only bad for earthing or grounding means, while being unfavorable for the ground connection performance of earthing or grounding means.
In the present solution, the wire portion on the terminal plate 3 is the connection on terminal plate 3 for being electrically connected with lead wire 2 Portion, such as by the way that in the end of lead wire 2, i.e., terminals coiling one surround the lantern ring 6 of stud 7, directly by the end of lead wire 2 Bifurcated and stud 7 is located in the prong of lead wire 2, directly will be between the end insertion pressure cap 1 and terminal plate 3 of lead wire 2 In gap, then the position by the adjustment pressure cap 1 of nut 5 on 7 axis of stud, pressure cap 1 can be passed through and terminal plate 3 realizes lead wire 2 are electrically connected with terminal plate 3.
Be set as by rotating the nut 5, nut 5 and terminal plate 3 close to during, by the wiring of lead wire 2 End is clamped between nut 5 and terminal plate 3.Meanwhile being set as further including pressure cap 1, the pressure cap 1 is set on stud 7, pressure cap 1 between connector lug and nut 5, at the same be set as pressure cap 1 material be copper or aluminium, the stud 7, nut 5 material be Carbon steel, in this way, may make pressure cap 1 to generate plastic deformation to increase pressure cap 1 and lead wire during nut 5 squeezes pressure cap 1 2, the contact area between pressure cap 1 and stud 7, pressure cap 1 and nut 5 is to improve the electric conductivity between lead wire 2 and terminal plate 3 Energy.
Since the rear pressing cap 1 that deforms under the action of nut 5 of pressure cap 1 can be adhered on stud 7 or be formed tightly with stud 7 Matching relationship, the removal of above bonding and tight fit relationship affect connector lug and 7 connection relationship of stud, therefore being set as further includes setting The a plurality of axial groove 12 being placed on 1 outside of pressure cap, it is flat by pincers worker when the above axial groove 12 is separated for connector lug with stud 7 The tools such as shovel, pincers worker crowbar, destroy pressure cap 1 make it become non-close ring and easily by pressure cap 1 by being removed on stud 7.This In scheme, be set as axial groove 12 be it is multiple, and annular spread on pressure cap 1, aloow operator by facilitate operation Angle destroy and pressure cap 1 or easily destroy pressure cap 1 for muti-piece.
As described above, this programme needs to squeeze pressure cap 1 by nut 5 when in use so that its generation plastic deformation is excellent Change the electrical connection performance of lead wire 2 and ground anchor pole 8, while including axial groove 12 on the pressure cap 1, to avoid nut 5 from squeezing The full circle ring structure of pressure cap 1 is destroyed and is influenced the electrical connection performance of lead wire 2 Yu stud 7, we during pressure pressure cap 1 It in case, is set as further including lantern ring 6, the above lantern ring 6 is the hoop being sheathed on 1 outside of pressure cap, for becoming for pressure cap 1 is radial Shape provide constraint, with keep nut 5 squeeze pressure cap 1 during 1 full circle ring structure of pressure cap integrity.
As noted previously, as the connection relationship for finally removing lead wire 2 and stud 7 needs to destroy the pressure cap 1, and pressure cap Tight fit relationship is formed between lantern ring 6 and pressure cap 1 after 1 deformation, therefore in the present solution, is set as ring set on one end of nut 5 Shelves annular in shape are additionally provided with along 61, the shelves form step surface annular in shape along 61 on the lateral surface of lantern ring 6.In this way, It destroys before pressure cap 1, the step surface is tapped to complete the separation of lantern ring 6 Yu pressure cap 1 by percussion tool first, is such as struck above The percussion power direction hit along the axis direction of stud 7 and towards the free end of stud 7, after lantern ring 6 is separated with pressure cap 1 again into Row pressure cap 1 is abolished.It is i.e. above to be easy to implement the separation of pressure cap 1 Yu lantern ring 6 along 61 6 scheme of lantern ring including shelves.
Preferably, the material for being set as pressure cap 1 is copper, i.e., the described pressure cap 1 is copper ring.
Embodiment 2:
As shown in Figures 1 to 4, the present embodiment is further qualified on the basis of embodiment 1: the pressure cap 1 leans on proximity Multiple grooves 11 are provided on the end face of one end of line plate 3, each groove 11 is are as follows: one end and the center on pressure cap 1 of groove 11 Hole connects, and the other end of groove 11 connects with the outside of pressure cap 1;
The groove 11 is circular layout on the end face of pressure cap 1;
The lead wire 2 is twisted wire.In the present solution, the twisted wire is stranded conductor, being set as lead wire 2 is twisted wire, Not only facilitate earthing or grounding means according to actual environment definitely 8 anchorage position of anchor pole using the flexibility of twisted wire, meanwhile, lead wire 2 On be prone to deform when being pressurized by the shape of paragraph that pressure cap 1 is clamped with earth plate, can reach improve lead wire 2 and pressure in this way The purpose of cap 1, lead wire 2 and 3 contact area of terminal plate;Be set as pressure cap 1 also has groove on one end of terminal plate 3 11, it can not only expand the contact area of 1 corresponding end end and lead wire 2 of pressure cap with upper groove 11, while by limiting each groove It is recessed to be deformed locally embedding in the compression of lead wire 2 in the arrangement state of 1 end of pressure cap for the position at 11 both ends, multiple grooves 11 After slot 11, do not remove pressure cap 1 to lead wire 2 clamp in the case where, can avoid lead wire 2 in dragging with terminal plate 3 Joint failure.
To sum up, due to including groove 11 on pressure cap 1, lead wire 2 has the characteristics that connection is reliable on this earthing or grounding means;Due to Lead wire 2 directly can be contacted directly with terminal plate 3, pressure cap 1 and stud 7 in this programme, simultaneously as including groove on pressure cap 1 11,2 link position of lead wire obtains bigger contact area due to being easier to, and may make leading for earthing or grounding means using the above structure Electrical property can be more susceptible to be guaranteed.
Being preferably arranged to the lead wire 2 is by strand copper wire twisted wire, in this way, can be optimized using the characteristics of copper wire mutability Lead wire 2 and terminal plate 3, stud 7, the electrical connection properties between 1 three of pressure cap.
To avoid pressure cap 1 during squeezing lead wire 2, composition is caused to draw because 2 local pressure of lead wire is excessive The solid conductor of wiring 2 is cut off and influences the electrical connection quality of lead wire 2 and ground anchor pole 8, setting are as follows: the slot of the groove 11 Face and the end face of pressure cap 1 smoothly transit.
As a kind of implementation easy to process, setting are as follows: the groove 11 is strip groove, and the length of each groove 11 Degree direction is respectively positioned on the radial direction of pressure cap 1.
To enable pressure cap 1 that there is bigger contact area close to one end of lead wire 2 and lead wire 2, make simultaneously Pressure cap 1 close to one end of terminal plate 3 under the action of nut 5, radial direction in 1 end of pressure cap, 1 end each point of pressure cap with draw More uniform pressure is all had between wiring 2 to obtain lead wire 2 and the bigger conductive area of pressure cap 1, is arranged are as follows: the pressure Cap 1 is provided with the circular cone shape of centre bore in middle part, and the biggish one end of 1 face area of pressure cap is towards terminal plate 3.Preferably, if Being set to lantern ring 6 also is shape in circular cone shape, meanwhile, the length of lantern ring 6 and the equal length of pressure cap 1, the size of lantern ring 6 are as follows: After pressure cap 1 and lantern ring 6 cooperate, the medial surface of lantern ring 6 is all affixed with the lateral surface of pressure cap 1, in this way, can to the greatest extent may be used by lantern ring 6 The deformation of 1 each point of pressure cap can be constrained.Preferably, be set as the axial groove 12 bottom have it is top, i.e., axial groove 12 cut Face triangular shape, in this way, being concentrated in 1 deformation process of pressure cap using the stress of the above top position, so that pressure cap 1 produces It gives birth to crackle and subsequent pressure cap 1 is facilitated to be separated by abolishing on stud 7.
To make as that can be conducive to by packing carbon powder in the gap between lead wire 2 and pressure cap 1, terminal plate 3, stud 7 Electrical connection properties between lead wire 2 and ground anchor pole 8, the wire portion further include cartridge 4, the cartridge 4 and terminal plate 3 It is fixedly connected, the stud 7, pressure cap 1 are respectively positioned in cartridge 4.This programme when in use, is used to contain in the cartridge 4 Carbon dust.
Wire portion be it is multiple, each cartridge 4 in the container-like of opening direction, and is respectively provided in the box wall of each cartridge 4 There is connecting groove 41;
Communicating passage of the connecting groove 41 as 4 medial and lateral of cartridge, the lead wire 2 on each wire portion are connect by correspondence Wire casing 41 introduces in cartridge 4, the upper end of cartridge 4 where the notch end of each connecting groove 41 is respectively positioned on;
The connecting position for opening up position and being respectively positioned on each cartridge 4 and terminal plate 3 of connecting groove 41 on each cartridge 4.We In case, it is multiple for being set as the wire portion, in this way, convenient for obtaining multiple 2 tie points of lead wire on terminal plate 3 to realize ground Anchor pole 8 passes through with by maintenance route, by the device of carry out electrical test, lightning conducter, the equipment for being implemented leakage protection More lead wires 2 are connected;With realize ground anchor pole 8 with more or it is multiple by maintenance route, by the equipment or dress of carry out electrical test Set, lightning conducter, be implemented the equipment of leakage protection and be connected by single or more lead wire 2, at the same may make each lead wire 2 with The terminals that ground anchor pole 8 connects without influence, are easy to implement each lead wire 2 and connect with the ground equal high quality of anchor pole 8 between each other.
It is embedded into earth's surface following certain depth to enable ground anchor pole 8 more easily to pass through hard ground, is arranged Are as follows: spiral spiral cord 10 is additionally provided on the side of 8 downside of described ground anchor pole;
Turning handle 9 is further fixed on the upside of described ground anchor pole 8;
The lower end of described ground anchor pole 8 is tip.In the present solution, torque is applied on ground anchor pole 8 by the turning handle 9, it can So that ground anchor pole 8 is guided from spiral cord 10 in the course of rotation and is easily embedded in underground;It can reduce ground with upper prong Resistance in 8 telescopiny of anchor pole.
As a kind of connection scheme being easily achieved and can guarantee electrical connection properties, setting are as follows: the terminal plate 3 passes through It is welded to connect and is connected with ground anchor pole 8.
During making rotating screw cap 5, pressure cap 1 is avoided to rotate with nut 5 and influence pressure cap 1 and lead wire 2 as far as possible Between electrical connection properties or destroy lead wire 2, setting are as follows: the end face of one end on the pressure cap 1 for connecting with nut 5 is Shiny surface.
The above content is combine specific preferred embodiment to the further description of the invention made, and it cannot be said that originally The specific embodiment of invention is only limited to these instructions.For those of ordinary skill in the art to which the present invention belongs, The other embodiments obtained in the case where not departing from technical solution of the present invention should be included in the protection scope of corresponding invention.

Claims (10)

1. a kind of power engineering earthing or grounding means, including ground anchor pole (8) and the wire connecting portion being installed on ground anchor pole (8), the wiring Portion includes terminal plate (3) and wire portion, and the wire portion includes stud (7), nut (5) and lead wire (2), the terminal plate (3) it is electrically connected with ground anchor pole (8), one end of stud (7) is welded on terminal plate (3), and nut (5) is threadedly connected to stud (7) On, the connector lug of the lead wire (2) is held between terminal plate (3) and nut (5), which is characterized in that further includes pressure cap (1), the material of the pressure cap (1) be copper or aluminium, the stud (7), nut (5) material be carbon steel, pressure cap (1) shape be in ring Shape;
The pressure cap (1) is set on stud (7), and pressure cap (1) is between the connector lug and nut (5);
A plurality of axial groove in a strip shape (12), one end of the axial groove (12) are additionally provided on the outside of the pressure cap (1) Connect with one end of pressure cap (1), the other end of axial groove (12) connects with the other end of pressure cap (1);
A plurality of axial groove (12) is circular layout on the lateral surface of pressure cap (1);
It further include lantern ring (6), the lantern ring (6) is set on pressure cap (1);
Ring set (6) is additionally provided with shelves annular in shape along (61) on the one end of nut (5), and the shelves are along (61) in lantern ring (6) Lateral surface on form step surface annular in shape;
The end face of the nut (5) is in contact with the end face of pressure cap (1), and the end face of lantern ring (6) is located at the outer of nut (5) end face Side.
2. a kind of power engineering earthing or grounding means according to claim 1, which is characterized in that the pressure cap (1) is close to wiring It is provided on the end face of one end of plate (3) multiple grooves (11), each groove (11) is equal are as follows: one end and pressure cap (1) of groove (11) On centre bore connect, connect on the outside of the other end of groove (11) and pressure cap (1);
The groove (11) is circular layout on the end face of pressure cap (1);
The lead wire (2) is twisted wire.
3. a kind of power engineering earthing or grounding means according to claim 2, which is characterized in that the groove face of the groove (11) with The end face of pressure cap (1) smoothly transits.
4. a kind of power engineering earthing or grounding means according to claim 2, which is characterized in that the groove (11) is bar shaped Slot, and the length direction of each groove (11) is respectively positioned on the radial direction of pressure cap (1).
5. a kind of power engineering earthing or grounding means according to claim 1, which is characterized in that the pressure cap (1) sets in middle part It is equipped with the circular cone shape of centre bore, pressure cap (1) biggish one end of face area is towards terminal plate (3).
6. a kind of power engineering earthing or grounding means according to claim 1, which is characterized in that the wire portion further includes carbon dust Box (4), the cartridge (4) are fixedly connected with terminal plate (3), and the stud (7), pressure cap (1) are respectively positioned in cartridge (4).
7. a kind of power engineering earthing or grounding means according to claim 6, which is characterized in that wire portion is multiple, each carbon dust Box (4) is provided with connecting groove (41) in the container-like of opening direction in the box wall of each cartridge (1);
Communicating passage of the connecting groove (41) as cartridge (4) medial and lateral, the lead wire (2) on each wire portion is by corresponding to Connecting groove (41) introduces in cartridge (4), the upper end of cartridge (4) where the notch end of each connecting groove (41) is respectively positioned on;
The connecting position for opening up position and being respectively positioned on each cartridge (4) Yu terminal plate (3) of connecting groove (41) on each cartridge (4).
8. according to right want any one of 1 to 7 described in a kind of power engineering earthing or grounding means, which is characterized in that the earth anchor Spiral spiral cord (10) is additionally provided on side on the downside of bar (8);
Turning handle (9) are further fixed on the upside of described ground anchor pole (8);
The lower end of described ground anchor pole (8) is tip.
9. according to right want any one of 1 to 7 described in a kind of power engineering earthing or grounding means, which is characterized in that the wiring Plate (3) is connected by being welded to connect with ground anchor pole (8).
10. according to right want any one of 1 to 7 described in a kind of power engineering earthing or grounding means, which is characterized in that the pressure cap (1) end face of one end on for connecting with nut (5) is shiny surface.
CN201811114615.1A 2018-09-25 2018-09-25 Electric power engineering earthing device Expired - Fee Related CN109216950B (en)

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CN111755955A (en) * 2020-07-02 2020-10-09 上海市计量测试技术研究院 High-tension electricity cabinet ground protection device

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KR100866933B1 (en) * 2008-04-23 2008-11-04 (주)와이즈산전 Ground rod having screw-formed base
CN201496365U (en) * 2009-09-06 2010-06-02 宁波置信非晶科技发展有限公司 Bolt device with toothed flange faces
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CN109217164A (en) * 2018-09-25 2019-01-15 四川知创知识产权运营有限公司 A kind of outdoor electric construction appliance
CN111755955A (en) * 2020-07-02 2020-10-09 上海市计量测试技术研究院 High-tension electricity cabinet ground protection device

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