CN105428847A - Power line earthing apparatus - Google Patents
Power line earthing apparatus Download PDFInfo
- Publication number
- CN105428847A CN105428847A CN201510850252.8A CN201510850252A CN105428847A CN 105428847 A CN105428847 A CN 105428847A CN 201510850252 A CN201510850252 A CN 201510850252A CN 105428847 A CN105428847 A CN 105428847A
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- CN
- China
- Prior art keywords
- layer
- earthing device
- power circuit
- bar
- corrosion
- 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.)
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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
- H01R11/11—End pieces or tapping pieces for wires, supported by the wire and for facilitating electrical connection to some other wire, terminal or conductive member
- H01R11/12—End pieces terminating in an eye, hook, or fork
- H01R11/14—End pieces terminating in an eye, hook, or fork the hook being adapted for hanging on overhead or other suspended lines, e.g. hot line clamp
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/02—Contact members
- H01R13/03—Contact members characterised by the material, e.g. plating, or coating materials
Abstract
The present invention discloses a power line earthing apparatus. The power line earthing apparatus comprises an insulated operating rod, a metal hook and a connector. The connector comprises a screw and a U-shaped upper mounting seat that are connected with each other. The lower screw coaxially extends into the insulated operating rod, and is screw-connected to the insulated operating rod. The metal hook is connected with the upper mounting seat. An anti-corrosion composite layer is disposed on both an outer surface of the metal hook and an outer surface of the connector, the anti-corrosion composite layer comprises a transition layer, an anti-corrosion inner layer, and an anti-corrosion outer layer arranged from inside to outside. The transition layer is a titanium metal layer. The anti-corrosion inner layer is formed by a composition of zirconium tungstate and aluminum oxynitride through vapor deposition, wherein a mass percentage of zirconium tungstate in the composition is 18% to 32%, and zirconium tungstate fills the space between aluminum oxynitride particles in the anti-corrosion inner layer. The power line earthing apparatus provided by the present invention has better anti-corrosion performance, so that corrosion caused by the external environment is effectively prevented, the currency leakage can be better guided, and the thermal checking and electric checking of an earthing apparatus can be passed.
Description
Technical field
The present invention relates to a kind of power equipment, particularly a kind of power circuit earthing device.
Background technology
Earthing device is connected on the position such as electrical appliance enclosure, high-voltage conducting wires in time by line unit that unsafe electric charge of producing because of a variety of causes or leakage current are derived; In the maintenance process of transmission line, produce electrostatic induction electric shock, necessary connecting earthing device after line outage for preventing closing on electrified body; Existing earthing device generally comprises insulating bar and metal grab, and metal grab is connected with insulating bar; In many cases, the use residing for earthing device, Conservation environment may be not ideal, and such as under corrosive environment, metal grab is easily etched and damages, thus cannot guide current leakage better, do not meet the heat verification of earthing device and electrically verify.
Therefore, just need a kind of power circuit earthing device, make it have stronger Corrosion Protection, effectively avoid the erosion of external environment, current leakage can be guided better, meet the heat verification of earthing device and electrically verify.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of power circuit earthing device, make it have stronger Corrosion Protection, effectively avoid the erosion of external environment, current leakage can be guided better, meet the heat verification of earthing device and electrically verify.
Power circuit earthing device of the present invention, comprise insulating bar, metal grab and the joint for connecting insulating bar and metal grab, described joint comprises the lower screw rod that is connected and the upper mount pad in " recessed " font, described lower screw coaxial stretches into insulating bar and is threaded, and described metal grab is connected to mount pad; The outer surface of described metal grab and joint is equipped with anticorrosion combination layer, and described anticorrosion combination layer comprises from the interior transition zone, anticorrosion internal layer and the asepticised outer layer that set gradually outward; Described transition zone is layer of titanium metal; Described anticorrosion internal layer is formed by vapour deposition by the composition of tungsten wire array and aluminum oxynitride, and in described composition, the mass percentage of tungsten wire array is 18%-32%, and in described anticorrosion internal layer, tungsten wire array fills up the space between aluminum oxynitride particulate; Described asepticised outer layer is phosphorization membrane, and the Phosphating Solution forming this phosphorization membrane is made up of following raw material by weight: zinc nitrate 180-250 part, zinc dihydrogen phosphate 110-150 part, zinc oxide 20-30 part, calcium nitrate 50-70 part, nickel nitrate 5-8 part, citric acid 5-8 part, sodium fluoride 2-5 part.
Further, in described composition, the mass percentage of tungsten wire array is 24%-26%.
Further, the Phosphating Solution forming this phosphorization membrane is made up of following raw material by weight: zinc nitrate 210-230 part, zinc dihydrogen phosphate 120-130 part, zinc oxide 23-26 part, calcium nitrate 58-64 part, nickel nitrate 6-7 part, citric acid 6-7 part, sodium fluoride 3-4 part.
Further, the thickness of described transition zone is 0.3 μm-0.8 μm, and the thickness of described anticorrosion internal layer is 1.2 μm-2.0 μm, and the thickness of described asepticised outer layer is 0.5 μm-1.5 μm.
Further, described metal grab is articulated with mount pad.
Further, described insulating bar is adjustable length telescopic structure.
Further, described insulating bar comprises outer bar and is socketed in the interior bar in described outer bar, the lower end of described interior bar has radial location hole, " convex " font alignment pin and stage clip is provided with in described location hole, described stage clip is located at bottom described location hole and between described alignment pin afterbody, the bar wall of described outer bar is evenly provided with at least two positioning jacks for passing for described alignment pin head.
Further, described metal grab is " J " shape and the double tongue type spring clip be provided with for clamping wire.
Further, described metal grab is connected with audible-visual annunciator; Described audible-visual annunciator comprises acoustic alarm part and light warning member, and the outside of described acoustic alarm part is provided with vocal hole, and the outside of described smooth warning member is provided with LED photoflash lamp.
Further, the bottom of described insulating bar is connected with rubber handle.
Beneficial effect of the present invention: power circuit earthing device of the present invention, the outer surface of metal grab and joint is equipped with anticorrosion combination layer, transition zone in anticorrosion combination layer can improve the adhesive force of anticorrosion internal layer, anticorrosion internal layer has finer and close structure, the infiltration that effectively can delay corrosive substance is corroded, improve corrosion resistance, phosphorization membrane can be formed at normal temperatures, operation is simple, labour intensity is low, the adhesive force of the anticorrosion internal layer of further enhancing, there is provided clean, evenly, without the surface of grease and non-corroding, this structure makes the present invention have stronger Corrosion Protection, effectively avoid the erosion of external environment, current leakage can be guided better, meet the heat verification of earthing device and electrically verify.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described:
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of anticorrosion combination layer of the present invention;
Fig. 3 is A direction view in Fig. 1;
Fig. 4 is B place enlarged drawing in Fig. 1.
Embodiment
Embodiment one
As shown in the figure: the power circuit earthing device of the present embodiment, comprise insulating bar 1, metal grab 2, and for connecting the joint of insulating bar 1 and metal grab 2, described joint comprises the lower screw rod 31 that is connected and the upper mount pad 32 in " recessed " font, described lower screw rod 31 coaxially stretches into insulating bar 1 and is threaded, described metal grab 2 is connected to mount pad 32, and lower screw rod 31 is connected with upper mount pad 32; The outer surface of described metal grab 2 and joint is equipped with anticorrosion combination layer, and described anticorrosion combination layer comprises from interior the transition zone 9a, the anticorrosion internal layer 9b and asepticised outer layer 9c that set gradually outward; Described transition zone 9a is layer of titanium metal; Described anticorrosion internal layer 9b is formed by vapour deposition by the composition of tungsten wire array and aluminum oxynitride, and in described composition, the mass percentage of tungsten wire array is 18%, and in described anticorrosion internal layer 9b, tungsten wire array fills up the space between aluminum oxynitride particulate; Described asepticised outer layer 9c is phosphorization membrane, and the Phosphating Solution forming this phosphorization membrane is made up of following raw material by weight: zinc nitrate 180 parts, zinc dihydrogen phosphate 110 parts, 20 parts, zinc oxide, 50 parts, calcium nitrate, nickel nitrate 5 parts, citric acid 5 parts, sodium fluoride 2 parts; Wherein, the thickness of transition zone 9a is 0.3 μm, and the thickness of anticorrosion internal layer 9b is 1.2 μm, and the thickness of described asepticised outer layer 9c is 0.5 μm; Refer to that wherein transition zone 9a is the most near this outer surface from the outer surface near metal grab 2 or joint to away from its outer surface outward from interior; Certainly, the setting of anticorrosion combination layer also needs the electric conductivity ensureing this device metal grab 2, i.e. the conducting surface of metal grab 2 can not arrange anticorrosion combination layer, even if or anticorrosion combination layer is set, also need to arrange conducting end simultaneously.
In the present embodiment, described metal grab 2 is articulated with mount pad 32; Metal grab 2 is " J " shape and the double tongue type spring clip 21 be provided with for clamping wire; The lower end of metal grab 2 is stretched into the dead slot position of mount pad 32 and connects by bolt, nut, realizes hinged with this; The top of insulating bar 1 is provided with the screw matched with lower screw rod 31; Metal grab 2 is hinged with joint, metal grab 2 can offset the axis side-to-side movement of insulating bar 1, when metal grab 2 is with inclination wire vertical connection, insulating bar 1 can relatively rotate adjustment and remain the state with horizontal plane, ensure metal grab 2 and connect wire that there is enough contacts area, to guide current leakage better, meet the heat verification of earth connection and electrically verify.
In the present embodiment, described insulating bar 1 is adjustable length telescopic structure; Different length can be adjusted to for different electric pressures, both easy to use, be also convenient to storage, transport, the maintenance requirement of different electric pressure can be applicable to; In the present embodiment, the interior bar 12 that described insulating bar 1 comprises outer bar 11 and is socketed in described outer bar 11, the lower end of described interior bar 12 has radial location hole 12a, " convex " font alignment pin 41 and stage clip 42 is provided with in described location hole 12a, described stage clip 42 is located at bottom described location hole 12a and between described alignment pin 41 afterbody, the bar wall of described outer bar 11 is evenly provided with at least two positioning jack 11a for passing for described alignment pin 41 head; Alignment pin matches with positioning jack, and in realizing, bar 12 and the location of outer bar 11, make insulating bar 1 have different length; This structure is simple, be easy to realize, and meets the detection of differing heights, strengthens the versatility of this device.
In the present embodiment, described metal grab 2 is connected with audible-visual annunciator 5; Described audible-visual annunciator 5 comprises acoustic alarm part 51 and light warning member 52, and the outside of described acoustic alarm part 51 is provided with vocal hole 51a, and the outside of described smooth warning member 52 is provided with LED photoflash lamp 52a; Audible-visual annunciator 5 can carry out real-time electrical verification to high-tension line, and sends acoustic alarm and light warning simultaneously, prevents the security incident of staff's live earth connection, improves safety in utilization; As shown in Figure 2, acoustic alarm part 51 is positioned at upside, light warning member 52 is positioned at downside, and after equipment live being detected, acoustic alarm part 51 is sounded a buzzer, and starts LED photoflash lamp carry out compartment flicker, fully to warn operating personnel with time warning member 52.
In the present embodiment, the bottom of described insulating bar 1 is connected with rubber handle 6; Rubber handle can ensure the safety of staff better, and strengthens the comfortableness of operation; In addition, the shaft of described insulating bar 1 can arrange luminescent coating (not shown); Luminescent coating is preferably fluorescent material, can send fluorescence under night-environment, is convenient to position, state that staff identifies earth lead.
Carry out 35 DEG C of neutral salt spray (NaCl concentration is 5%) test to the earthing device of the present embodiment, found that, it had corrosion phenomenon after 145.5 hours.
Embodiment two
The present embodiment is substantially identical with the structure of embodiment one, and its difference is only the structure of anticorrosion combination layer; In the present embodiment, in described composition, the mass percentage of tungsten wire array is 32%, and in described anticorrosion internal layer 9b, tungsten wire array fills up the space between aluminum oxynitride particulate; Described asepticised outer layer 9c is phosphorization membrane, and the Phosphating Solution forming this phosphorization membrane is made up of following raw material by weight: zinc nitrate 250 parts, zinc dihydrogen phosphate 150 parts, 30 parts, zinc oxide, 70 parts, calcium nitrate, nickel nitrate 8 parts, citric acid 8 parts, sodium fluoride 5 parts; Wherein, the thickness of transition zone 9a is 0.4 μm, and the thickness of anticorrosion internal layer 9b is 1.3 μm, and the thickness of described asepticised outer layer 9c is 0.6 μm.
Carry out 35 DEG C of neutral salt spray (NaCl concentration is 5%) test to the earthing device of the present embodiment, found that, it had corrosion phenomenon after 152.0 hours.
Embodiment three
The present embodiment is substantially identical with the structure of embodiment one, and its difference is only the structure of anticorrosion combination layer; In the present embodiment, in described composition, the mass percentage of tungsten wire array is 26%, and in described anticorrosion internal layer 9b, tungsten wire array fills up the space between aluminum oxynitride particulate; Described asepticised outer layer 9c is phosphorization membrane, and the Phosphating Solution forming this phosphorization membrane is made up of following raw material by weight: zinc nitrate 230 parts, zinc dihydrogen phosphate 130 parts, 26 parts, zinc oxide, 64 parts, calcium nitrate, nickel nitrate 7 parts, citric acid 7 parts, sodium fluoride 4 parts; Wherein, the thickness of transition zone 9a is 0.5 μm, and the thickness of anticorrosion internal layer 9b is 1.5 μm, and the thickness of described asepticised outer layer 9c is 0.7 μm.
Carry out 35 DEG C of neutral salt spray (NaCl concentration is 5%) test to the earthing device of the present embodiment, found that, it had corrosion phenomenon after 160.5 hours.
Embodiment four
The present embodiment is substantially identical with the structure of embodiment one, and its difference is only the structure of anticorrosion combination layer; In the present embodiment, in described composition, the mass percentage of tungsten wire array is 26%, and in described anticorrosion internal layer 9b, tungsten wire array fills up the space between aluminum oxynitride particulate; Described asepticised outer layer 9c is phosphorization membrane, and the Phosphating Solution forming this phosphorization membrane is made up of following raw material by weight: zinc nitrate 230 parts, zinc dihydrogen phosphate 130 parts, 26 parts, zinc oxide, 64 parts, calcium nitrate, nickel nitrate 7 parts, citric acid 7 parts, sodium fluoride 4 parts; Wherein, the thickness of transition zone 9a is 0.8 μm, and the thickness of anticorrosion internal layer 9b is 2.0 μm, and the thickness of described asepticised outer layer 9c is 1.5 μm.
Carry out 35 DEG C of neutral salt spray (NaCl concentration is 5%) test to the earthing device of the present embodiment, found that, it had corrosion phenomenon after 155.0 hours.
What finally illustrate is, above embodiment is only in order to illustrate technical scheme of the present invention and unrestricted, although with reference to preferred embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that, can modify to technical scheme of the present invention or equivalent replacement, and not departing from aim and the scope of technical solution of the present invention, it all should be encompassed in the middle of right of the present invention.
Claims (10)
1. a power circuit earthing device, comprise insulating bar, metal grab and the joint for connecting insulating bar and metal grab, described joint comprises the lower screw rod that is connected and the upper mount pad in " recessed " font, described lower screw coaxial stretches into insulating bar and is threaded, and described metal grab is connected to mount pad; It is characterized in that: the outer surface of described metal grab and joint is equipped with anticorrosion combination layer, described anticorrosion combination layer comprises from the interior transition zone, anticorrosion internal layer and the asepticised outer layer that set gradually outward; Described transition zone is layer of titanium metal; Described anticorrosion internal layer is formed by vapour deposition by the composition of tungsten wire array and aluminum oxynitride, and in described composition, the mass percentage of tungsten wire array is 18%-32%, and in described anticorrosion internal layer, tungsten wire array fills up the space between aluminum oxynitride particulate; Described asepticised outer layer is phosphorization membrane, and the Phosphating Solution forming this phosphorization membrane is made up of following raw material by weight: zinc nitrate 180-250 part, zinc dihydrogen phosphate 110-150 part, zinc oxide 20-30 part, calcium nitrate 50-70 part, nickel nitrate 5-8 part, citric acid 5-8 part, sodium fluoride 2-5 part.
2. power circuit earthing device according to claim 1, is characterized in that: in described composition, the mass percentage of tungsten wire array is 24%-26%.
3. power circuit earthing device according to claim 2, is characterized in that: the Phosphating Solution forming this phosphorization membrane is made up of following raw material by weight: zinc nitrate 210-230 part, zinc dihydrogen phosphate 120-130 part, zinc oxide 23-26 part, calcium nitrate 58-64 part, nickel nitrate 6-7 part, citric acid 6-7 part, sodium fluoride 3-4 part.
4. power circuit earthing device according to claim 3, is characterized in that: the thickness of described transition zone is 0.3 μm-0.8 μm, and the thickness of described anticorrosion internal layer is 1.2 μm-2.0 μm, and the thickness of described asepticised outer layer is 0.5 μm-1.5 μm.
5. power circuit earthing device according to claim 4, is characterized in that: described metal grab is articulated with mount pad.
6. power circuit earthing device according to claim 5, is characterized in that: described insulating bar is adjustable length telescopic structure.
7. power circuit earthing device according to claim 6, it is characterized in that: described insulating bar comprises outer bar and is socketed in the interior bar in described outer bar, the lower end of described interior bar has radial location hole, " convex " font alignment pin and stage clip is provided with in described location hole, described stage clip is located at bottom described location hole and between described alignment pin afterbody, the bar wall of described outer bar is evenly provided with at least two positioning jacks for passing for described alignment pin head.
8. power circuit earthing device according to claim 7, is characterized in that: described metal grab is " J " shape and the double tongue type spring clip be provided with for clamping wire.
9. power circuit earthing device according to claim 8, is characterized in that: described metal grab is connected with audible-visual annunciator; Described audible-visual annunciator comprises acoustic alarm part and light warning member, and the outside of described acoustic alarm part is provided with vocal hole, and the outside of described smooth warning member is provided with LED photoflash lamp.
10. power circuit earthing device according to claim 9, is characterized in that: the bottom of described insulating bar is connected with rubber handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510850252.8A CN105428847B (en) | 2015-11-27 | 2015-11-27 | Power circuit earthing or grounding means |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510850252.8A CN105428847B (en) | 2015-11-27 | 2015-11-27 | Power circuit earthing or grounding means |
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| Publication Number | Publication Date |
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| CN105428847A true CN105428847A (en) | 2016-03-23 |
| CN105428847B CN105428847B (en) | 2018-01-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510850252.8A Active CN105428847B (en) | 2015-11-27 | 2015-11-27 | Power circuit earthing or grounding means |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5321379U (en) * | 1976-08-03 | 1978-02-23 | ||
| JPS608497Y2 (en) * | 1980-06-06 | 1985-03-26 | 関西電力株式会社 | Wire grounding equipment |
| CN102586730A (en) * | 2011-01-17 | 2012-07-18 | 鸿富锦精密工业（深圳）有限公司 | Film-coated part and preparation method thereof |
| CN103296500A (en) * | 2013-05-29 | 2013-09-11 | 国家电网公司 | Single-hook double-tongue tightening earthing clamp |
| CN203491409U (en) * | 2013-10-15 | 2014-03-19 | 国家电网公司 | Telescopic alarm grounding device |
| CN203631771U (en) * | 2013-11-16 | 2014-06-04 | 国家电网公司 | Angle-adjustable ground wire device |
| CN204497406U (en) * | 2015-04-13 | 2015-07-22 | 国家电网公司 | High-tension overhead line protective earthing line |
-
2015
- 2015-11-27 CN CN201510850252.8A patent/CN105428847B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5321379U (en) * | 1976-08-03 | 1978-02-23 | ||
| JPS608497Y2 (en) * | 1980-06-06 | 1985-03-26 | 関西電力株式会社 | Wire grounding equipment |
| CN102586730A (en) * | 2011-01-17 | 2012-07-18 | 鸿富锦精密工业（深圳）有限公司 | Film-coated part and preparation method thereof |
| CN103296500A (en) * | 2013-05-29 | 2013-09-11 | 国家电网公司 | Single-hook double-tongue tightening earthing clamp |
| CN203491409U (en) * | 2013-10-15 | 2014-03-19 | 国家电网公司 | Telescopic alarm grounding device |
| CN203631771U (en) * | 2013-11-16 | 2014-06-04 | 国家电网公司 | Angle-adjustable ground wire device |
| CN204497406U (en) * | 2015-04-13 | 2015-07-22 | 国家电网公司 | High-tension overhead line protective earthing line |
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| Publication number | Publication date |
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| CN105428847B (en) | 2018-01-12 |
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Inventor after: Wang Weibo Inventor after: Xie Bing Inventor after: Wu Fuping Inventor after: Xu Xiaochuan Inventor after: Hao Haiquan Inventor before: Wang Weibo Inventor before: Xie Bing Inventor before: Wu Fuping Inventor before: Xu Xiaochuan |
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