CN203690525U - Ground clamp - Google Patents

Ground clamp Download PDF

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Publication number
CN203690525U
CN203690525U CN201420062112.5U CN201420062112U CN203690525U CN 203690525 U CN203690525 U CN 203690525U CN 201420062112 U CN201420062112 U CN 201420062112U CN 203690525 U CN203690525 U CN 203690525U
Authority
CN
China
Prior art keywords
clamping part
semicylindrical
long screw
clamp
connecting portion
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.)
Expired - Fee Related
Application number
CN201420062112.5U
Other languages
Chinese (zh)
Inventor
林富洪
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 Corp of China SGCC
State Grid Fujian Electric Power Co Ltd
Putian Power Supply Co of State Grid Fujian Electric Power Co Ltd
Original Assignee
State Grid Corp of China SGCC
State Grid Fujian Electric Power Co Ltd
Putian Power Supply Co of State Grid Fujian 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 Corp of China SGCC, State Grid Fujian Electric Power Co Ltd, Putian Power Supply Co of State Grid Fujian Electric Power Co Ltd filed Critical State Grid Corp of China SGCC
Priority to CN201420062112.5U priority Critical patent/CN203690525U/en
Application granted granted Critical
Publication of CN203690525U publication Critical patent/CN203690525U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses a ground clamp comprising two movable arms, an articulated shaft, a long screw and a fastening nut. Each movable arm comprises a clamping part and a connecting part which are connected together. The connecting part is provided with a long through hole. An inner surface of the clamping part is provided with three semi-cylindrical holes of different diameters. The long screw is connected on an outer surface of the clamping part of one movable arm. The fastening nut can be screwed in and out and is in bolt joint with the long screw. Free ends of the clamping parts of the two movable arms are hinged to each other through the articulated shaft. When the connecting parts of the two movable arms are overlapped together, the three semi-cylindrical holes in one movable arm and the three semi-cylindrical holes in the other movable arm form three cylindrical through holes of different diameters respectively. The ground clamp is simple in structure, convenient to install and dismount and low in cost, and can reliably clamp cylindrical grounding conductors of different sizes, so that reliable connection between a transformer and a grounding conductor is achieved, and reliable discharge of the transformer is ensured.

Description

A kind of earthing clamp
Technical field
The utility model relates to a kind of power equipment Work tool, specifically relates to a kind of earthing clamp that adapts to different size earthing conductor.
Background technology
In transformer station, each converting equipment below is all provided with earthing conductor, due to each interval in transformer station, asynchronism(-nization) puts into operation, the earthing conductor size of different interval is also different, existing earthing clamp size is single, only has a kind of size, with the earthing conductor of the existing earthing clamp clamping connection different size of single size, easily occur that clamping connection is not tight, even occur earthing clamp and earthing conductor appearance to seem contact and inner there is no effective virtual connection phenomenon being connected, virtual connection phenomenon makes the converting equipment residual charge of interruption maintenance and induced electricity cannot effectively import substation grounding electrical network, when staff works on converting equipment, can be wounded to fall by residual charge and induced electricity and cause loss of life or personal injury, serious threat substation equipment maintenance and repair personnel personal safety.Therefore, development is a kind of installs, removes conveniently, cost is low, the reliably cylinder earthing conductor of clamping connection different size, realize converting equipment and be connected with the reliable of earthing conductor, guarantee that the earthing clamp of the adapted to different size earthing conductor of the reliable electric discharge of converting equipment has very important engineering practical value.
Utility model content
The utility model provides a kind of the purpose of this utility model to be to overcome the deficiencies in the prior art part, provide a kind of and install, remove conveniently, cost is low, the reliably cylinder earthing conductor of clamping connection different size, realize converting equipment and be connected with the reliable of earthing conductor, guarantee the earthing clamp of the adapted to different size earthing conductor of the reliable electric discharge of converting equipment.The utility model solves the technical scheme that its technical problem adopts:
A kind of earthing clamp, is characterized in that: comprise two lever arms, a jointed shaft, a long screw and a clamp nut;
This lever arm comprises the clamping part and the connecting portion that link together, this connecting portion is provided with rectangular through hole, the inner surface of this clamping part is provided with three semicylindrical openings that diameter is different, three semicylindrical opening parallel interval arrange, the axis of described semicylindrical opening is consistent with the Width of described clamping part, the diameter maximum of the semicylindrical opening of close this connecting portion, the diameter minimum of the free-ended semicylindrical opening of close this clamping part;
This long screw is connected on the outer surface of clamping part of a lever arm, and this clamp nut can precession, screw out and this long screw is spirally connected;
The free end of the clamping part of described two lever arms is hinged by this jointed shaft, when the connecting portion of described two lever arms is folded while being close together, three semicylindrical openings on a lever arm respectively with another lever arm on three semicylindrical openings surround the cylindrical hole of three different-diameters.
The technical program is compared with background technology, and its tool has the following advantages:
When use, wire one end is connected with converting equipment, the wire other end is wrapped on long screw, then screw clamp nut, the fastened nut of the wire other end and lever arm reliably clamp.Earthing conductor is put in corresponding semicylindrical opening, and the connecting portion of two lever arms is folded to be close together, and through the rectangular through hole of two lever arms, the two is linked together with bolt, can realize the utility model and be connected with the reliable of earthing conductor.The utility model is simple in structure, and it is convenient to install, remove, and cost is low, and reliably the cylinder earthing conductor of clamping connection different size, realizes converting equipment and be connected with the reliable of earthing conductor, guarantees that converting equipment reliably discharges.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Fig. 1 has illustrated the schematic perspective view of a kind of earthing clamp of the utility model.
The master that Fig. 2 has illustrated a kind of earthing clamp shown in Fig. 1 looks schematic diagram.
Embodiment
Please refer to Fig. 1, a kind of earthing clamp of the present utility model, comprises two lever arms 10, a jointed shaft 20, a long screw and a clamp nut 30.
This lever arm 10 comprises the clamping part 12 and the connecting portion 14 that link together.This connecting portion 14 is provided with rectangular through hole 142.The inner surface of this clamping part 12 is provided with three semicylindrical openings 122 that diameter is different.Three semicylindrical opening 122 parallel interval settings, the axis of described semicylindrical opening 122 is consistent with the Width of described clamping part 12, the diameter maximum of the semicylindrical opening 122 of close this connecting portion 14, the diameter minimum of the free-ended semicylindrical opening 122 of close this clamping part 12.
This long screw is connected on the outer surface of clamping part 12 of a lever arm 10.This clamp nut 30 can precession, screw out and this long screw is spirally connected.The free end of the clamping part 12 of described two lever arms 10 is hinged by this jointed shaft 20.
Please refer to Fig. 2, in the time of folded being close together of connecting portion 14 of described two lever arms 10, three semicylindrical openings 122 on a lever arm 10 respectively with another lever arm 10 on three semicylindrical openings 122 surround cylindrical hole 40a, 40b, the 40c of three different-diameters.Described three cylindrical hole 40a, 40b, 40c are for clamping the cylinder earthing conductor of different size.
The above, it is only the utility model preferred embodiment, therefore can not limit according to this scope that the utility model is implemented, the equivalence of doing according to the utility model the scope of the claims and description changes and modifies, and all should still belong in the scope that the utility model contains.

Claims (1)

1. an earthing clamp, is characterized in that: comprise two lever arms, a jointed shaft, a long screw and a clamp nut;
This lever arm comprises the clamping part and the connecting portion that link together, this connecting portion is provided with rectangular through hole, the inner surface of this clamping part is provided with three semicylindrical openings that diameter is different, three semicylindrical opening parallel interval arrange, the axis of described semicylindrical opening is consistent with the Width of described clamping part, the diameter maximum of the semicylindrical opening of close this connecting portion, the diameter minimum of the free-ended semicylindrical opening of close this clamping part;
This long screw is connected on the outer surface of clamping part of a lever arm, and this clamp nut can precession, screw out and this long screw is spirally connected;
The free end of the clamping part of described two lever arms is hinged by this jointed shaft, when the connecting portion of described two lever arms is folded while being close together, three semicylindrical openings on a lever arm respectively with another lever arm on three semicylindrical openings surround the cylindrical hole of three different-diameters.
CN201420062112.5U 2014-02-11 2014-02-11 Ground clamp Expired - Fee Related CN203690525U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420062112.5U CN203690525U (en) 2014-02-11 2014-02-11 Ground clamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420062112.5U CN203690525U (en) 2014-02-11 2014-02-11 Ground clamp

Publications (1)

Publication Number Publication Date
CN203690525U true CN203690525U (en) 2014-07-02

Family

ID=51012396

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420062112.5U Expired - Fee Related CN203690525U (en) 2014-02-11 2014-02-11 Ground clamp

Country Status (1)

Country Link
CN (1) CN203690525U (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104134879A (en) * 2014-08-13 2014-11-05 国家电网公司 Novel through-current experiment jointing clamp
CN104201490A (en) * 2014-08-01 2014-12-10 国家电网公司 Throwing and hanging type grounding wire clamp of high-voltage line
CN105896392A (en) * 2014-10-27 2016-08-24 无锡市神力通信工程有限公司 Cable holding clamp support frame
CN107248629A (en) * 2017-07-12 2017-10-13 国家电网公司 A kind of multi-purpose earthing clamp
CN110492261A (en) * 2019-08-30 2019-11-22 华勤通讯技术有限公司 Connector assembly and comprising its electronic equipment, connector assembly assemble method

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104201490A (en) * 2014-08-01 2014-12-10 国家电网公司 Throwing and hanging type grounding wire clamp of high-voltage line
CN104134879A (en) * 2014-08-13 2014-11-05 国家电网公司 Novel through-current experiment jointing clamp
CN105896392A (en) * 2014-10-27 2016-08-24 无锡市神力通信工程有限公司 Cable holding clamp support frame
CN107248629A (en) * 2017-07-12 2017-10-13 国家电网公司 A kind of multi-purpose earthing clamp
CN110492261A (en) * 2019-08-30 2019-11-22 华勤通讯技术有限公司 Connector assembly and comprising its electronic equipment, connector assembly assemble method

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20140702

Termination date: 20220211