CN109326897A - A grounding bolt and grounding device - Google Patents

A grounding bolt and grounding device Download PDF

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Publication number
CN109326897A
CN109326897A CN201811311673.3A CN201811311673A CN109326897A CN 109326897 A CN109326897 A CN 109326897A CN 201811311673 A CN201811311673 A CN 201811311673A CN 109326897 A CN109326897 A CN 109326897A
Authority
CN
China
Prior art keywords
parts
screw rod
nut
jack
earth
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
Application number
CN201811311673.3A
Other languages
Chinese (zh)
Inventor
刘建国
周阳
王小寒
龙川
王西米
陈志吉
黄显
王哲旭
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
State Grid Sichuan Electric Power Co Ltd
Original Assignee
State Grid Sichuan Electric Power Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by State Grid Sichuan Electric Power Co Ltd filed Critical State Grid Sichuan Electric Power Co Ltd
Priority to CN201811311673.3A priority Critical patent/CN109326897A/en
Publication of CN109326897A publication Critical patent/CN109326897A/en
Pending legal-status Critical Current

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Classifications

    • 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
    • H01R4/32Conductive members located in slot or hole in screw
    • 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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  • Powder Metallurgy (AREA)

Abstract

The invention discloses a kind of earth stud, including bolt body, the bolt body includes nut and screw rod, and jack is provided on the screw rod, and one end of the screw rod is fixedly connected with nut;One end that screw rod is used to connect with nut is connecting pin, and the jack has aperture on the connecting pin;The jack is circular hole, and the axis collinear of the axis of jack and nut, the aperture of jack are less than the internal diameter of nut.It can not only enable ground line easy to connect with this configuration, it is firm, the contact area of ground line and earth stud can also be increased, reach good ground connection power effect.

Description

A kind of earth stud and earthing or grounding means
Technical field
The present invention relates to electrical test earth stud and earthing or grounding means processing preparation field more particularly to a kind of ground connection spiral shells The structure of bolt designs.
Background technique
In current power industry system, the safe and stable operation of all power equipments all be unable to do without electrical test work.Electricity In gas experiment work, safe and reliable ground connection is guarantee test personnel's personal safety, and testing equipment, tested device are safe and full The important link and technological means of sufficient test specification and accuracy.Field or other there is no the place of good earth point When carrying out electrical test, it is necessary to which good, convenient grounding point is provided using temporary earthing device.
But existing for example common grounding pin of ground connection makeshift device etc. all only provides one or two ground connection leading point, Bu Nengman Numerous needs such as equipment, test item ground connection and equipment electric discharge in foot test;And leading point is grounded using plain bolt or is twined Around mode and ground line connect, connect it is inconvenient and not firm, cause working site ground line it is in disorder, T node is excessive, existing Terminals on earth plate are easy to be corroded, and influence the electric conductivity of conducting wire and earthing or grounding means.
Summary of the invention
For solve existing earthing or grounding means ground line be grounded leading point and connect inconvenient and not firm, cause working site to connect Ground wire is in disorder and T node is excessive, and the technological deficiency that Wiring port is easily corroded on earth plate, the present invention provides a kind of electrical grounding Test grounding pin, the connection of solution leading point is inconvenient and not firm, and the technological deficiency being easily corroded reaches easy to connect and firm The technology leaned on, it is ensured that the technical effect of testing crew personal safety.
To reach above-mentioned technical effect, it is achieved by following technical solution:
A kind of earth stud, including bolt body, the bolt body include nut and screw rod, are provided on the screw rod One end of jack, the screw rod is fixedly connected with nut;
One end that screw rod is used to connect with nut is connecting pin, and the jack has aperture on the connecting pin;
The jack is circular hole, and the axis collinear of the axis of jack and nut, the aperture of jack are less than the internal diameter of nut.
Preferably, one end of the screw rod is connected through a screw thread with nut.
Preferably, the screw rod comprising following parts by weight ingredient by forming: 5-15 parts of iron boride, 1-5 parts of silicon carbide, and carbonization It is 3-9 parts of tungsten, 0.5-1.5 parts of titanium oxide, 5-15 parts of copper, 0.5-1.5 parts of nickel, 1.5-3 parts of graphite, 1-10 parts silver-colored.
Preferably, the screw rod comprising following parts by weight ingredient by forming: 5-10 parts of iron boride, 3-5 parts of silicon carbide, and carbonization It is 6-9 parts of tungsten, 0.5-1 parts of titanium oxide, 5-10 parts of copper, 0.5-1 parts of nickel, 2-3 parts of graphite, 5-8 parts silver-colored.
Preferably, the screw rod comprising following parts by weight ingredient by forming: 6 parts of iron boride, 4 parts of silicon carbide, and tungsten carbide 7 Part, 0.8 part of titanium oxide, 8 parts of copper, 6 parts of nickel, 2.6 parts of graphite, 6 parts of silver.
The preparation method of the screw rod includes following preparation step:
1) mold prepares: needing to choose tubing according to the length of screw rod to be produced, processes inner hole of pipe, makes respective mode Tool;
2) raw material configures: taking raw material powder to be uniformly mixed according to component needed for nut stem material, initial powder is made;
3) it suppresses blank: manufactured initial powder being filled up to vacant mold cavity, and is sufficiently compacted, and to mould type Chamber forvacuum, vacuum degree are 0.5 × 10-3~1.0 × 10-4Pa keeps higher vacuum state, is made and is pre-sintered blank;
4) green body is made: pre-sintering blank is made and is sintered, screw rod green body is made;
5) 1-2 normalized treatment normalized treatment: is carried out to screw rod green body obtained;
6) machine-shaping: removal mold, after being ground outer circle to required size to the screw rod green body after normalized treatment, finally Subsequent working process is carried out to the undressed part of green body, screw rod finished product is made.
A kind of earthing or grounding means, including earth plate further include any earth stud described above, the other end of the screw rod It is fixedly connected with earth plate.
A kind of electrical test grounding pin, including earthing pole further include earthing or grounding means described in claim, ground connection dress It sets and is fixedly connected with earthing pole.
Preferably, earth plate and earthing pole are bonded and are integral by welding or integrally formed mode.
Preferably, handle is installed between the earthing pole and earth plate.
Preferably, the ground connection extremely sharp cylindrical round steel in one end.
Earthing pole top is hammered when work is implanted into it in the earth soil, and handle is used for the implantation of auxiliary earth pole and tears open It removes, on the different Special grounding bolts that a plurality of different ground lines can be connected on earth plate.Have on ground line and ground connection spiral shell The corresponding screw thread of bolt is fixed on earth stud for that will be grounded.
The utility model has the advantages that
Earth stud has unique design in the present invention, is equipped with screw rod on nut, and after conductor wire insertion, line is twisted Tightly on nut, the installation method is easy, firm, and ground line is inserted into screw rod, increases contact of the ground line with screw rod Area, the electric conductivity of lifting device.
In the present invention, screw rod using alloy material prepare, have excellent electric conductivity, anticorrosion feature, avoid due to Interface corrosion, influences the electric conductivity of grounding pin.
Detailed description of the invention
The structural schematic diagram of one specific embodiment of Fig. 1 grounding pin;
The structural schematic diagram of one specific embodiment of Fig. 2 earthing or grounding means;
The cross-sectional view of one specific embodiment of Fig. 3 earth stud;
Description of symbols: handle 1, earthing pole 2, earth plate 3, earth stud 4, ground connection nut 41, screw rod 42, jack 43。
Specific embodiment
A kind of earth stud of embodiment 1
A kind of earth stud, including bolt body 4, the bolt body 4 include nut 41 and screw rod 42, the screw rod 42 On be provided with jack 43, one end of the screw rod 42 is fixedly connected with nut 41;
One end that screw rod 42 is used to connect with nut 41 is connecting pin, and the jack 43 has hole on the connecting pin Mouthful;
The jack 43 is circular hole, and the axis collinear of the axis of jack 43 and nut 41, the aperture of jack 43 are less than spiral shell The internal diameter of cap 41.
One end of the screw rod 42 is connected through a screw thread with nut 41.
The screw rod 42 is prepared by common iron.
A kind of earth stud of embodiment 2
A kind of earth stud, including bolt body 4, the bolt body 4 include nut 41 and screw rod 42, the screw rod 42 On be provided with jack 43, one end of the screw rod 42 is fixedly connected with nut 41;
One end that screw rod 42 is used to connect with nut 41 is connecting pin, and the jack 43 has hole on the connecting pin Mouthful;
The jack 43 is circular hole, and the axis collinear of the axis of jack 43 and nut 41, the aperture of jack 43 are less than spiral shell The internal diameter of cap 41.
One end of the screw rod 42 and nut 41 pass through welded connecting.
The screw rod 42 is made of following parts by weight ingredient: 5 parts of iron boride, 1 part of silicon carbide, and 3 parts of tungsten carbide, titanium oxide 0.5 part, 5 parts of copper, 0.5 part of nickel, 1.5 parts of graphite, 1 part of silver.
The preparation method of the screw rod 42 includes following preparation step:
1) mold prepares: needing to choose tubing according to the length of screw rod to be produced, processes inner hole of pipe, makes respective mode Tool;
2) raw material configures: taking raw material powder to be uniformly mixed according to component needed for nut stem material, initial powder is made;
3) it suppresses blank: manufactured initial powder being filled up to vacant mold cavity, and is sufficiently compacted, and to mould type Chamber forvacuum, vacuum degree are 0.5 × 10-3Higher vacuum state is kept, is made and is pre-sintered blank;
4) green body is made: pre-sintering blank is made and is sintered, screw rod green body is made;
5) 1 normalized treatment normalized treatment: is carried out to screw rod green body obtained;
6) machine-shaping: removal mold, after being ground outer circle to required size to the screw rod green body after normalized treatment, finally Subsequent working process is carried out to the undressed part of green body, screw rod finished product is made.
A kind of earth stud of embodiment 3
A kind of earth stud, including bolt body 4, the bolt body 4 include nut 41 and screw rod 42, the screw rod 42 On be provided with jack 43, one end of the screw rod 42 is fixedly connected with nut 41;
One end that screw rod 42 is used to connect with nut 41 is connecting pin, and the jack 43 has hole on the connecting pin Mouthful;
The jack 43 is circular hole, and the axis collinear of the axis of jack 43 and nut 41, the aperture of jack 43 are less than spiral shell The internal diameter of cap 41.
One end of the screw rod 42 is connected through a screw thread with nut 41.
The screw rod 42 is made of following parts by weight ingredient: 6 parts of iron boride, 4 parts of silicon carbide, and 7 parts of tungsten carbide, titanium oxide 0.8 part, 8 parts of copper, 6 parts of nickel, 2.6 parts of graphite, 6 parts of silver.
The preparation method of the screw rod 42 includes following preparation step:
1) mold prepares: needing to choose tubing according to the length of screw rod to be produced, processes inner hole of pipe, makes respective mode Tool;
2) raw material configures: taking raw material powder to be uniformly mixed according to component needed for nut stem material, initial powder is made;
3) it suppresses blank: manufactured initial powder being filled up to vacant mold cavity, and is sufficiently compacted, and to mould type Chamber forvacuum, vacuum degree are 5 × 10-3Higher vacuum state is kept, is made and is pre-sintered blank;
4) green body is made: pre-sintering blank is made and is sintered, screw rod green body is made;
5) 2 normalized treatments normalized treatment: are carried out to screw rod green body obtained;
6) machine-shaping: removal mold, after being ground outer circle to required size to the screw rod green body after normalized treatment, finally Subsequent working process is carried out to the undressed part of green body, screw rod finished product is made.
Embodiment 4
A kind of earth stud
A kind of earth stud, including bolt body 4, the bolt body 4 include nut 41 and screw rod 42, the screw rod 42 On be provided with jack 43, one end of the screw rod 42 is fixedly connected with nut 41;
One end that screw rod 42 is used to connect with nut 41 is connecting pin, and the jack 43 has hole on the connecting pin Mouthful;
The jack 43 is circular hole, and the axis collinear of the axis of jack 43 and nut 41, the aperture of jack 43 are less than spiral shell The internal diameter of cap 41.
One end of the screw rod 42 is connected through a screw thread with nut 41.
The screw rod 42 is formed comprising following parts by weight ingredient: 15 parts of iron boride, 5 parts of silicon carbide, and 9 parts of tungsten carbide, oxidation 1.5 parts of titanium, 15 parts of copper, 1.5 parts of nickel, 3 parts of graphite, 10 parts of silver.
The preparation method of the screw rod 42 includes following preparation step:
1) mold prepares: needing to choose tubing according to the length of screw rod to be produced, processes inner hole of pipe, makes respective mode Tool;
2) raw material configures: taking raw material powder to be uniformly mixed according to component needed for nut stem material, initial powder is made;
3) it suppresses blank: manufactured initial powder being filled up to vacant mold cavity, and is sufficiently compacted, and to mould type Chamber forvacuum, vacuum degree are 0.5 × 10-3~1.0 × 10-4Pa keeps higher vacuum state, is made and is pre-sintered blank;
4) green body is made: pre-sintering blank is made and is sintered, screw rod green body is made;
5) 1-2 normalized treatment normalized treatment: is carried out to screw rod green body obtained;
6) machine-shaping: removal mold, after being ground outer circle to required size to the screw rod green body after normalized treatment, finally Subsequent working process is carried out to the undressed part of green body, screw rod finished product is made.
A kind of earthing or grounding means of embodiment 5
A kind of earthing or grounding means, including earth plate 3 further include any earth stud of embodiment 1-4, the screw rod 42 One end is connect with nut, and the other end is fixedly connected with earth plate.
A kind of electrical test grounding pin of embodiment 6
A kind of electrical test grounding pin, including earthing pole 2 further include earthing or grounding means described in embodiment 5, ground connection dress It sets and is fixedly connected by welding with earthing pole 2, handle 1 is installed between the earthing pole 2 and earth plate 3, the earthing pole 2 is The sharp cylindrical round steel in one end.
A kind of electrical test grounding pin of embodiment 7
A kind of electrical test grounding pin, including earthing pole 2 further include earthing or grounding means described in embodiment 5, ground connection dress It sets and is fixedly connected with earthing pole 2 by integrally formed mode, handle 1, institute are installed between the earthing pole 2 and earth plate 3 Stating earthing pole 2 is the sharp cylindrical round steel in one end.
Performance detection:
1. screw rod Corrosion Protection
Alloy screw sample and steel as matrix material are taken, the test comparison of the corrosion resistance of different condition is carried out, it is each to survey Test result is as follows:
At room temperature, the case where alloy sample is corroded in 65% nitric acid to 65h respectively with steel as matrix material compares Such as table 1:
Table 1
Antiseptic property
Embodiment 1 Canescence is presented in most surfaces, and about 40% region forms red dotted rust staining.
Embodiment 2 Surface is by slight erosion, and about 1% region is by pitting corrosion at reddish brown rusty scale.
Embodiment 3 There is not pitting corrosion phenomenon by slight erosion in surface.
Embodiment 4 Surface is by slight erosion, and about 2% region is by pitting corrosion at reddish brown rusty scale.
As shown in Table 1, the screw rod of the alloy material preparation used in the present invention has extraordinary corrosion resistance, is significantly better than Common iron.
2. screw rod electric conductivity
Table 2:
Detect screw rod electric conductivity, from the data in table 2, it can be seen that screw rod prepared by alloy material used in the present invention have than Common just better conductivity.
The above is only to be not intended to limit the scope of the present invention to presently preferred embodiments of the present invention, therefore do not taking off Under the premise of design spirit of the present invention, this field ordinary engineering and technical personnel is to structure, feature and principle of the present invention The equivalence changes or decoration made, should all fall into the protection scope of the present patent application patent.

Claims (10)

1. a kind of earth stud, including bolt body (4), the bolt body (4) includes nut (41) and screw rod (42), spy Sign is, is provided with jack (43) on the screw rod (42), and one end of the screw rod (42) is fixedly connected with nut (41);
One end that screw rod (42) is used to connect with nut (41) is connecting pin, and the jack (43) has hole on the connecting pin Mouthful;
The jack (43) is circular hole, and the axis collinear of the axis of jack (43) and nut (41), the aperture of jack (43) are small Internal diameter in nut (41).
2. earth stud according to claim 1, which is characterized in that one end of the screw rod (42) passes through with nut (41) It is threadedly coupled.
3. earth stud according to claim 1, which is characterized in that the screw rod (42) is by including following parts by weight ingredient group At: 5-15 parts of iron boride, 1-5 parts of silicon carbide, 3-9 parts of tungsten carbide, 0.5-1.5 parts of titanium oxide, 5-15 parts of copper, 0.5-1.5 parts of nickel, It is 1.5-3 parts of graphite, 1-10 parts silver-colored.
4. earth stud according to claim 1, which is characterized in that the screw rod (42) is by including following parts by weight ingredient group At: 5-10 parts of iron boride, 3-5 parts of silicon carbide, 6-9 parts of tungsten carbide, 0.5-1 parts of titanium oxide, 5-10 parts of copper, 0.5-1 parts of nickel, graphite It is 2-3 parts, 5-8 parts silver-colored.
5. earth stud according to claim 1, which is characterized in that the screw rod (42) is by including following parts by weight ingredient Composition: 6 parts of iron boride, 4 parts of silicon carbide, 7 parts of tungsten carbide, 0.8 part of titanium oxide, 8 parts of copper, 6 parts of nickel, 2.6 parts of graphite, 6 parts of silver.
6. a kind of earthing or grounding means, including earth plate (3), which is characterized in that further include the ground connection as described in claim 1-6 is any The other end of bolt, the screw rod (42) is fixedly connected with earth plate (3).
7. a kind of electrical test grounding pin, including earthing pole (2), which is characterized in that further include ground connection as claimed in claim 6 Device, the earthing or grounding means are fixedly connected with earthing pole (2).
8. grounding pin according to claim 7, which is characterized in that earth plate (3) and earthing pole (2) pass through welding or one Molding mode, which is bonded, to be integral.
9. grounding pin according to claim 7, which is characterized in that be equipped between the earthing pole (2) and earth plate (3) Handle (1).
10. grounding pin according to claim 7, which is characterized in that the earthing pole (2) is the sharp cylinder circle in one end Steel.
CN201811311673.3A 2018-11-06 2018-11-06 A grounding bolt and grounding device Pending CN109326897A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811311673.3A CN109326897A (en) 2018-11-06 2018-11-06 A grounding bolt and grounding device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811311673.3A CN109326897A (en) 2018-11-06 2018-11-06 A grounding bolt and grounding device

Publications (1)

Publication Number Publication Date
CN109326897A true CN109326897A (en) 2019-02-12

Family

ID=65259296

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201811311673.3A Pending CN109326897A (en) 2018-11-06 2018-11-06 A grounding bolt and grounding device

Country Status (1)

Country Link
CN (1) CN109326897A (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2035535U (en) * 1988-06-15 1989-04-05 柳建国 High efficient connector for conductor and electric appliances by hand operation
CN2174788Y (en) * 1993-12-02 1994-08-17 黄水艳 Electric connector with screw
CN201233970Y (en) * 2008-01-04 2009-05-06 孙永春 Fastening connector for grounding wire
CN203553381U (en) * 2013-11-25 2014-04-16 国家电网公司 Grounding device ensuring good electric contact
CN103774054A (en) * 2012-10-24 2014-05-07 邓俊杰 Alloy screw material and production technology of screws by adopting material

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2035535U (en) * 1988-06-15 1989-04-05 柳建国 High efficient connector for conductor and electric appliances by hand operation
CN2174788Y (en) * 1993-12-02 1994-08-17 黄水艳 Electric connector with screw
CN201233970Y (en) * 2008-01-04 2009-05-06 孙永春 Fastening connector for grounding wire
CN103774054A (en) * 2012-10-24 2014-05-07 邓俊杰 Alloy screw material and production technology of screws by adopting material
CN203553381U (en) * 2013-11-25 2014-04-16 国家电网公司 Grounding device ensuring good electric contact

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Application publication date: 20190212

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