CN110556640A - Special earth connection of block terminal - Google Patents
Special earth connection of block terminal Download PDFInfo
- Publication number
- CN110556640A CN110556640A CN201910899656.4A CN201910899656A CN110556640A CN 110556640 A CN110556640 A CN 110556640A CN 201910899656 A CN201910899656 A CN 201910899656A CN 110556640 A CN110556640 A CN 110556640A
- Authority
- CN
- China
- Prior art keywords
- clamping plate
- movable
- wire
- block terminal
- earth connection
- 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
-
- 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
- H01R11/22—End pieces terminating in a spring clip
Abstract
The utility model provides a special earth connection of block terminal, includes: the universal joint comprises an insulating rod, a universal joint, a movable wire clamp and a grounding wire, wherein one end of the universal joint is connected with one end of the insulating rod through a longitudinal pin, and the insulating rod can rotate by taking the longitudinal pin as a shaft; the other end of the universal joint is connected with the movable wire clamp through a transverse pin, and the movable wire clamp can rotate by taking the transverse pin as a shaft; one end of the grounding wire is wound on the bolt on one side of the movable wire clamp, and the other end of the grounding wire is grounded when the grounding wire is installed on the distribution box. When the power equipment is overhauled and constructed, a modified special grounding wire is arranged in the distribution box, and the rectangular movable clamping plate enables the conductor end to be reliably contacted with the conductive aluminum plate; the insulating rod and the wire clamp which can rotate 360 degrees solve the defect of narrow space in the distribution box, and the operation can be flexible and convenient; short and small portable insulating rods and optimally designed wire clamps can prevent the mistaken touch of adjacent live busbars and terminals, so that personal safety and equipment safety are ensured.
Description
Technical Field
the invention relates to the field of electric power equipment maintenance and engineering construction safety, in particular to a special grounding wire for a distribution box, which can prevent safety accidents such as poor grounding, mistaken touch of electrified equipment and the like in the process of arranging the grounding wire in the distribution box.
Background
The installation of the grounding wire is a technical measure for protecting the working personnel, so that the grounding wire must be installed on each possible incoming call side to ensure the personal safety of the working personnel during the maintenance of the power equipment. When a common grounding wire is arranged in a distribution box at present, the contact area between a working head of the grounding wire and a conductor is small, the connection is not firm and the grounding wire is easy to fall off due to the limitation of the installation position; the operation rod and the fixed wire clamp of the insulating structure are limited by space and cannot rotate when being suspended, so that the operation difficulty and time are increased; too big metal fastener of block terminal is apart from generating line row or terminal interval undersize relatively, easily takes place the mistake and touches electrified equipment and cause alternate short circuit, and the insulator spindle of overlength makes the block terminal door unable closing, forms the potential safety hazard. In order to ensure safe and reliable operation in the process of installing the grounding wire in the distribution box, a special grounding wire for the distribution box is needed, namely, the grounding wire is realized by connecting a movable wire clamp on an insulating rod.
At present, equipment maintenance and engineering construction tasks are heavy, power failure operation is frequent, a grounding wire special for a distribution box is used, safety and reliable grounding are guaranteed, operation is simple and convenient, and installation difficulty and time of workers are reduced.
Disclosure of Invention
the invention provides technical support for solving unsafe factors such as insecure connection, difficulty in suspension, mistaken touch on electrified equipment and the like in the process of installing the grounding wire in the distribution box, provides a special grounding wire for the distribution box for ensuring personal safety and equipment safety, and has the advantages of simple and convenient operation, safety and high efficiency.
The invention adopts the following technical scheme:
the utility model provides a special earth connection of block terminal, includes: insulator spindle, universal joint, activity fastener and earth conductor, its characterized in that:
One end of the universal joint is connected with one end of the insulating rod through a longitudinal pin, and the insulating rod can rotate for 360 degrees by taking the longitudinal pin as a shaft;
The other end of the universal joint is connected with the movable wire clamp through a transverse pin, and the movable wire clamp can rotate 360 degrees by taking the transverse pin as a shaft;
One end of the grounding wire is wound on the bolt on one side of the movable wire clamp, and the other end of the grounding wire is grounded when the grounding wire is installed on the distribution box.
The invention further adopts the following technical scheme:
The upper clamping plate is a rectangular metal fixing clamping plate;
the lower clamping plate is an iron plate with a hollow middle part and is designed into an I shape;
The movable clamping plate is made of aluminum materials, and the movable wire clamp is provided with a U-shaped notch;
The movable clamping plate is connected with the upper clamping plate through a spring and is in surface contact with the lower clamping plate;
A frame-shaped iron wire is welded on the movable clamping plate and is sleeved on the wire clamp body;
Through the spring and the frame-shaped iron wire, the movable clamping plate can move up and down
The thickness of the movable clamping plate is larger than that of the upper clamping plate and the lower clamping plate.
the outer end of the movable clamping plate is bent towards the upper clamping plate by an angle of 20-40 degrees, preferably 30 degrees.
The distance between the upper splint and the movable splint is 1.5-4 cm, preferably 2.5 cm.
the distance between the two plates of the lower clamping plate is in the range of 1 to 2 cm, preferably 1.5 cm.
The invention has the following technical effects:
Compared with the prior art, the invention can realize safe and reliable operation in the process of installing the grounding wire of the distribution box, effectively prevent the grounding wire from falling off, mistakenly touching electrified equipment, difficult operation and the like, and control slight damage and obstacles, thereby effectively improving the working efficiency.
Drawings
Fig. 1 is a schematic diagram of a grounding wire dedicated to a distribution box.
Fig. 2 is a schematic view of a universal joint of a ground wire dedicated to a distribution box.
Fig. 3 is a schematic view of a movable wire clamp of a ground wire special for a distribution box.
Detailed Description
the grounding wire special for the distribution box is described in detail below according to the attached drawings.
as shown in fig. 1, the ground wire dedicated for the distribution box of the present invention includes: the universal joint comprises an insulating rod 1, a universal joint 2, a movable wire clamp 3 and a grounding wire 4. One end of the universal joint 2 is connected with one end of the insulating rod 1; the other end of the universal joint 2 is connected with the movable wire clamp 3, one end of the grounding wire 4 is wound on the bolt on one side of the movable wire clamp 3, and the other end of the grounding wire is connected with the grounding rod. The special grounding wire for the distribution box disclosed by the invention can be matched with the movable wire clamp 3 through the universal joint 2, so that safe and reliable operation in the process of installing the special grounding wire for the distribution box can be realized. And, the insulator spindle 1 is made by epoxy glass fiber, and it is short and small light, easily carries.
As shown in fig. 2, one end of the universal joint 2 is connected with one end of the insulating rod 1 through a longitudinal pin 6, so that the insulating rod 1 can rotate 360 degrees around the longitudinal pin 6; the other end of the universal joint 2 is connected with the movable wire clamp 3 through a transverse pin 5, so that the movable wire clamp 3 can rotate for 360 degrees by taking the transverse pin 5 as a shaft; thereby can satisfy the narrow and small requirement of block terminal inner space, realized the nimble operation of staff when the earth connection is established to the block terminal.
as shown in fig. 3, the movable wire clamp 3 includes an upper clamping plate 7, a movable clamping plate 8 and a lower clamping plate 9, and each clamping plate is a rectangular metal body engaged with the conductive aluminum plate of the distribution box, so that the clamping opening can be fully contacted with the conductor.
The upper clamping plate 7 is a fixed clamping plate processed by iron materials and is arranged above the movable wire clamp 3. The lower splint 9 is also a fixed splint processed from an iron material. Wherein, in order to enhance the toughness of the lower splint 9 and relieve the bending deformation after long-time stress, the lower splint 9 is designed into an I shape. Meanwhile, the lower clamping plate 9 is not a complete plate, the middle part of the lower clamping plate is hollow, the contact area is small, and the stress capacity is weak, so that the lower clamping plate 9 is designed into an I-shaped structure, the lower clamping plate 9 and the wire clamp body can be welded together in a double-layer mode, the reliable connection is guaranteed, the lower clamping plate is not easy to fall off, and the distance between the two plates of the lower clamping plate 9 ranges from 1 cm to 2 cm, preferably 1.5 cm.
The movable clamp plate 8 is made of aluminum so that the movable clamp plate 8 can rapidly and completely introduce the residual charge into the ground after being in contact with the conductor which is just powered off. The movable clamping plate 8 has a U-shaped cut-out to enable a closer contact with the aluminum plate. The movable clamping plate 8 is connected with the upper clamping plate 7 through a spring 10; the movable clamping plate 8 is in surface contact with the lower clamping plate 9 to ensure the reliable contact of the clamping plate and the electric conductor. The movable clamping plate 8 is connected with the movable clamping plate of the wire clamp body through a frame-shaped iron wire, the frame-shaped iron wire is formed by bending the iron wire, is welded with the movable clamping plate 8 and is sleeved on the wire clamp body, and therefore the movable clamping plate 8 can move up and down. And because the frame-shaped iron wire is welded with the movable clamping plate 8, the thickness of the movable clamping plate 8 is thicker than that of the upper clamping plate 7 and the lower clamping plate 9. In addition, the frame-shaped iron wire is directly welded to the movable clamping plate 8, so that reliable connection can be guaranteed, and the movable clamping plate 8 is prevented from falling off from the iron wire after being stressed for a long time. The one end of the movable clamping plate 8 is bent in the direction of the upper clamping plate 7 by an angle ranging from 20 to 40 degrees, preferably 30 degrees, so that the movable clamping plate 8 can smoothly clamp the aluminum plate. And the distance between the movable clamp plate 8 and the upper clamp plate 7 is in the range of 1.5 to 4 cm, preferably 2.5 cm.
In the invention, the size of the whole movable wire clamp 3 is designed according to the space between the distribution box and the adjacent bus bar, thereby avoiding the occurrence of safety accidents caused by mistaken touch on the live equipment.
The grounding wire special for the distribution box can realize safe and reliable operation in the process of installing the grounding wire of the distribution box, effectively prevents the grounding wire from falling off, mistakenly touches electrified equipment, is difficult to operate and the like, controls slight damage and obstacles, and thus effectively improves the working efficiency.
While the best mode for carrying out the invention has been described in detail and illustrated in the accompanying drawings, it is to be understood that the same is by way of illustration and example only and is not to be taken by way of limitation, the scope of the invention should be determined by the appended claims and any changes or modifications which fall within the true spirit and scope of the invention should be construed as broadly described herein.
Claims (9)
1. the utility model provides a special earth connection of block terminal, includes: insulator spindle, universal joint, activity fastener and earth conductor, its characterized in that:
one end of the universal joint is connected with one end of the insulating rod through a longitudinal pin, and the insulating rod can rotate for 360 degrees by taking the longitudinal pin as a shaft;
The other end of the universal joint is connected with the movable wire clamp through a transverse pin, and the movable wire clamp can rotate 360 degrees by taking the transverse pin as a shaft;
One end of the grounding wire is wound on the bolt on one side of the movable wire clamp, and the other end of the grounding wire is grounded when the grounding wire is installed on the distribution box.
2. The special earth connection of block terminal of claim 1, characterized in that:
The upper clamping plate is a rectangular metal fixing clamping plate;
the lower clamping plate is an iron plate with a hollow middle part and is designed into an I shape;
the movable clamping plate is made of aluminum materials, and the movable wire clamp is provided with a U-shaped notch;
The movable clamping plate is connected with the upper clamping plate through a spring and is in surface contact with the lower clamping plate;
a frame-shaped iron wire is welded on the movable clamping plate and is sleeved on the wire clamp body;
Through the spring with the frame shape iron wire, movable clamp plate can reciprocate.
3. The special earth connection of block terminal of claim 2, characterized in that:
The thickness of the movable clamping plate is larger than that of the upper clamping plate and the lower clamping plate.
4. the special earth connection of block terminal of claim 2, characterized in that:
The angle of the outer end of the movable clamping plate bending to the direction of the upper clamping plate is 20-40 degrees.
5. The special earth connection of block terminal of claim 4, characterized in that:
The angle of the outer end of the movable clamping plate bending towards the upper clamping plate is 30 degrees.
6. The special earth connection of block terminal of claim 2, characterized in that:
The distance range between the upper splint and the movable splint is 1.5-4 cm.
7. The special earth connection of block terminal of claim 6, characterized in that:
The distance between the upper clamping plate and the movable clamping plate is 2.5 cm.
8. The special earth connection of block terminal of claim 2, characterized in that:
The distance between the two plates of the lower clamping plate ranges from 1 to 2 centimeters.
9. the special earth connection of block terminal of claim 8, characterized in that:
The distance between the two plates of the lower clamping plate is preferably 1.5 cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910899656.4A CN110556640B (en) | 2019-09-23 | 2019-09-23 | Special earth connection of block terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910899656.4A CN110556640B (en) | 2019-09-23 | 2019-09-23 | Special earth connection of block terminal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110556640A true CN110556640A (en) | 2019-12-10 |
| CN110556640B CN110556640B (en) | 2021-01-29 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910899656.4A Active CN110556640B (en) | 2019-09-23 | 2019-09-23 | Special earth connection of block terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110556640B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080009156A1 (en) * | 2006-07-10 | 2008-01-10 | Malin Glen K | System and method for bonding coaxial cable |
| CN203326127U (en) * | 2013-06-28 | 2013-12-04 | 国家电网公司 | Spacing-adjustable ground wire clamp |
| CN205488635U (en) * | 2016-04-11 | 2016-08-17 | 国家电网公司 | Power distribution station is with high -pressure short to ground stick |
| CN205565041U (en) * | 2016-03-28 | 2016-09-07 | 国网天津市电力公司 | Special earth connection of female row in duckbilled formula cabinet |
| CN205985410U (en) * | 2016-08-31 | 2017-02-22 | 国网河南许昌县供电公司 | Meet ground wire device in a flexible way |
| CN107611640A (en) * | 2017-09-11 | 2018-01-19 | 国网浙江省电力公司宁波供电公司 | Cable grounding line |
| CN207883930U (en) * | 2018-03-22 | 2018-09-18 | 国家电网公司 | A kind of earthing or grounding means for American cable elbow head |
| CN208444971U (en) * | 2018-07-04 | 2019-01-29 | 国网湖北省电力有限公司黄石供电公司 | A kind of switch cabinet bus row ground line |
| CN110190413A (en) * | 2019-06-06 | 2019-08-30 | 国网山东省电力公司烟台供电公司 | A kind of anti-dismounted Multifunctional grounding wire |
-
2019
- 2019-09-23 CN CN201910899656.4A patent/CN110556640B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080009156A1 (en) * | 2006-07-10 | 2008-01-10 | Malin Glen K | System and method for bonding coaxial cable |
| CN203326127U (en) * | 2013-06-28 | 2013-12-04 | 国家电网公司 | Spacing-adjustable ground wire clamp |
| CN205565041U (en) * | 2016-03-28 | 2016-09-07 | 国网天津市电力公司 | Special earth connection of female row in duckbilled formula cabinet |
| CN205488635U (en) * | 2016-04-11 | 2016-08-17 | 国家电网公司 | Power distribution station is with high -pressure short to ground stick |
| CN205985410U (en) * | 2016-08-31 | 2017-02-22 | 国网河南许昌县供电公司 | Meet ground wire device in a flexible way |
| CN107611640A (en) * | 2017-09-11 | 2018-01-19 | 国网浙江省电力公司宁波供电公司 | Cable grounding line |
| CN207883930U (en) * | 2018-03-22 | 2018-09-18 | 国家电网公司 | A kind of earthing or grounding means for American cable elbow head |
| CN208444971U (en) * | 2018-07-04 | 2019-01-29 | 国网湖北省电力有限公司黄石供电公司 | A kind of switch cabinet bus row ground line |
| CN110190413A (en) * | 2019-06-06 | 2019-08-30 | 国网山东省电力公司烟台供电公司 | A kind of anti-dismounted Multifunctional grounding wire |
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| Publication number | Publication date |
|---|---|
| CN110556640B (en) | 2021-01-29 |
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