CN208489502U - A kind of cable elbow-shaped head grounding wire device - Google Patents
A kind of cable elbow-shaped head grounding wire device Download PDFInfo
- Publication number
- CN208489502U CN208489502U CN201821094278.XU CN201821094278U CN208489502U CN 208489502 U CN208489502 U CN 208489502U CN 201821094278 U CN201821094278 U CN 201821094278U CN 208489502 U CN208489502 U CN 208489502U
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- grounding
- sealing cover
- cable elbow
- pressure spring
- wire
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Links
- 238000007789 sealing Methods 0.000 claims abstract description 52
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 15
- 229910052802 copper Inorganic materials 0.000 claims description 15
- 239000010949 copper Substances 0.000 claims description 15
- 230000001681 protective effect Effects 0.000 claims description 6
- 238000012423 maintenance Methods 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 2
- 229910000906 Bronze Inorganic materials 0.000 abstract 2
- 239000010974 bronze Substances 0.000 abstract 2
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 abstract 2
- 239000004020 conductor Substances 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 10
- 230000006835 compression Effects 0.000 description 6
- 238000007906 compression Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 239000011241 protective layer Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
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Abstract
The embodiment of the present application discloses a kind of cable elbow-shaped head grounding wire device, including sealing cover, ground line and ground connection bronze medal；Wherein, one end of ground line is connect with sealing cover；The other end of ground line is connect with ground connection bronze medal；Sealing cover is that a rounded bottom surface and a cylindrical surface connect the columnar structured of composition；The inner wall on cylindrical surface is equipped with soft spongy layer；Pressure spring and earthing contact are equipped with inside sealing cover；Pressure spring is located at rounded bottom surface center, and one end of pressure spring is fixed on rounded bottom surface, and the other end of pressure spring is connect with earthing contact.A kind of cable elbow-shaped head grounding wire device provided by the embodiments of the present application loads onto the sealing cover of corresponding size by covering in cable elbow-shaped head end, and cable elbow-shaped head effective grounding is made by the ground line that sealing cover connects, avoiding the problem that generating when separate line needs interruption maintenance cable branch box can not hanging earthing conductor, and the apparatus structure of the application is simple, easy to operate, and ground connection is high-efficient, effect is good.
Description
Technical Field
The embodiment of the application relates to the field of operation and maintenance of power equipment of a power system, in particular to a cable elbow type head grounding wire device suitable for a ring main unit.
Background
The Ring Main Unit (Ring Main Unit) is a group of electric equipment (high-voltage switch equipment) which is arranged in a metal or nonmetal insulating cabinet body or is made into an assembled interval Ring Main power supply Unit, and the core part of the Ring Main Unit adopts a load switch and a fuse, so that the Ring Main Unit has the advantages of simple structure, small volume, low price, capability of improving power supply parameters and performance, power supply safety and the like. The transformer substation is widely applied to distribution stations and box-type substations of load centers of urban residential districts, high-rise buildings, large public buildings, factory enterprises and the like. The cable elbow type head is the most commonly used structure that constitutes looped netowrk cabinet cable junction at present, and it has light in weight, simple to operate, connects characteristics such as stable, and the wide application is in the looped netowrk cabinet in each field.
At present, in the process of maintenance of the ring main unit, in order to guarantee the safety of the maintenance process and reduce the difficulty of maintenance work, the ring main unit is generally required to be connected with a ground wire, however, when individual cable branch boxes of the ring main unit need to be maintained, because each branch box in the ring main unit can not be independently grounded, the whole ring main unit is required to be powered off on a large scale, the normal power supply of a system is influenced, and meanwhile, the function of the ring main unit is greatly reduced.
SUMMERY OF THE UTILITY MODEL
The application provides a cable elbow type head earth connection device to after solving among the prior art a large amount of cable run and dropping into the operation, when the maintenance need have a power failure to individual circuit, the problem of cable branch box can't articulate the ground wire, and the earth connection device simple structure, convenient operation, the safety and stability that this application provided.
The application provides a cable elbow type head grounding wire device which comprises a sealing cover, a grounding wire and a grounding copper plate; wherein,
one end of the grounding wire is connected with the sealing cover;
the other end of the grounding wire is connected with the grounding copper plate;
the sealing cover is a cylindrical structure formed by connecting a circular bottom surface and a cylindrical surface; the inner wall of the cylindrical surface is provided with a soft sponge layer;
a pressure spring and a grounding contact are arranged in the sealing cover; the pressure spring is located in the center of the circular bottom surface, one end of the pressure spring is fixed on the circular bottom surface, and the other end of the pressure spring is connected with the grounding contact.
Optionally, the number of the sealing covers is three; one end of the grounding wire comprises three same grounding branch wires, and each grounding branch wire is connected with one sealing cover.
Optionally, an insulating layer is disposed on the outer side of the sealing cover.
Optionally, the cylindrical surface is sleeved outside the end of the cable elbow head.
Optionally, a bolt hole is formed in the center of the grounding copper plate, and a fixing bolt is arranged in the bolt hole.
Optionally, a wire end protective sleeve is arranged below the sealing cover, and the wire end protective sleeve is sleeved at the tail end of the grounding branch.
According to the technology, the application provides a cable elbow type head grounding wire device which comprises a sealing cover, a grounding wire and a grounding copper plate; one end of the grounding wire is connected with the sealing cover; the other end of the grounding wire is connected with the grounding copper plate; the sealing cover is a cylindrical structure formed by connecting a circular bottom surface and a cylindrical surface; the inner wall of the cylindrical surface is provided with a soft sponge layer; a pressure spring and a grounding contact are arranged in the sealing cover; the pressure spring is located in the center of the circular bottom surface, one end of the pressure spring is fixed on the circular bottom surface, and the other end of the pressure spring is connected with the grounding contact. The utility model provides a cable elbow type head earth connection device is through the sealed lid of corresponding size on cable elbow type head end suit to earth connection through sealed lid connection makes cable elbow type head effective ground connection, avoids producing the problem that cable branch box can not articulate the ground wire when individual circuit need have a power failure to overhaul, and the device simple structure of this application, easy and simple to handle, ground connection efficiency is high, effectual.
Drawings
In order to more clearly explain the technical solution of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious to those skilled in the art that other drawings can be obtained according to the drawings without any creative effort.
Fig. 1 is a schematic structural view of a cable elbow type head ground wire device according to the present application;
fig. 2 is an internal structure view of a sealing cap in a cable elbow type head ground wire device according to the present application;
the device comprises a sealing cover 1, a circular bottom surface 11, a cylindrical surface 12, a grounding wire 2, a grounding branch 21, a wire end protective sleeve 211, a soft sponge layer 3, a pressure spring 4, a grounding contact 5, a grounding copper plate 6, a bolt hole 61 and a fixing bolt 62.
Detailed Description
Example one
Referring to fig. 1, a schematic structural diagram of a cable elbow type head grounding wire device according to the present application is shown;
referring to fig. 2, it is an internal structure diagram of a cable elbow type head grounding wire device according to the present application;
as can be seen from fig. 1 and 2, the present invention provides a cable elbow type head grounding device, which includes a sealing cover 1, a grounding wire 2 and a grounding copper plate 6; the sealing cover 1 is used for being connected and fixed with the tail end of a cable elbow-shaped head, the grounding wire 2 is used for providing a current grounding line, and the grounding copper plate 6 is used for connecting and fixing the grounding wire 2 with a grounding end;
one end of the grounding wire 2 is connected with the sealing cover 1;
the other end of the grounding wire 2 is connected with the grounding copper plate 6;
the sealing cover 1 is a cylindrical structure formed by connecting a circular bottom surface 11 and a cylindrical surface 12; the inner wall of the cylindrical surface 12 is provided with a soft sponge layer 3;
furthermore, in the embodiment, the shape of the sealing cover 1 is designed to conform to the shape of the tail end of the cable elbow-shaped head, and since the tail end of the cable elbow-shaped head which is common in the market at present is cylindrical, the sealing cover 1 with a cylindrical structure is arranged, so that after the protective layer at the tail end of the cable elbow-shaped head is detached, the sealing cover 1 can be sleeved on the tail end of the cable elbow-shaped head and has high fastening performance; meanwhile, the soft sponge layer 3 is arranged on the contact surface of the sealing cover 1 and the cable elbow-shaped head, so that when the sealing cover 1 and the cable elbow-shaped head are combined, the soft sponge layer 3 is extruded, certain elasticity is provided, the sealing performance of the sealing cover 1 is guaranteed, and the sealing cover 1 is not easy to fall off.
A pressure spring 4 and a grounding contact 5 are arranged in the sealing cover 1; the compression spring 4 is positioned in the center of the circular bottom surface 11, one end of the compression spring 4 is fixed on the circular bottom surface 11, and the other end of the compression spring 4 is connected with the grounding contact 5;
furthermore, in this embodiment, the grounding contact 5 is used as a contact position of a grounding wire and a cable elbow-shaped head, and is required to provide good and stable contact, and the grounding contact 5 is connected with the compression spring 4 to provide flexible contact, so that on one hand, the grounding contact 5 is prevented from being in staggered contact with the tail end of the cable elbow-shaped head, and the cable is prevented from being damaged or poorly contacted; on the other hand, the compression of the compression spring 4 can provide the pre-tightening force of the grounding electric shock 5 towards the cable elbow-shaped head direction, and the stable and continuous contact is ensured.
According to the technical scheme, the application method of the cable elbow type head grounding wire device provided by the embodiment of the application comprises the following steps:
firstly, before grounding a cable elbow-shaped head, removing a protective layer positioned at the tail end of the cable elbow-shaped head to enable the protective layer to leak out of a metal tail end;
secondly, the sealing cover 1 is held by hand, the sealing cover 1 is inserted into the tail end of the cable elbow-shaped head until the sealing cover cannot be inserted continuously, and the grounding contact 5 is ensured to be conducted with the cable elbow-shaped head by means of the elasticity of the pressure spring 4;
and thirdly, fastening the grounding copper plate 6 at the other end of the grounding wire 2 to the grounding end.
Furthermore, when the device in this embodiment is used, the order of the second step and the third step may be changed to achieve the same grounding effect.
Optionally, the number of the sealing covers 1 is three; one end of the grounding wire 2 comprises three same grounding branch wires 21, and each grounding branch wire 21 is connected with one sealing cover 1. The three grounding branch lines 21 respectively ground one of the three phases of electricity without mutual influence, so that the three-phase power distribution system is safer and more reliable in the maintenance process.
Optionally, an insulating layer is arranged on the outer side of the sealing cover 1; the insulating layer can increase the safety of the hand-held operation of the operator.
Optionally, the cylindrical surface 12 is sleeved outside the tail end of the elbow-shaped head of the cable; in this embodiment, the cylindrical surface 12 is designed to be naturally matched with the end of the elbow-shaped head of the cable, so as to ensure a certain bonding strength on the premise of convenient plugging.
Optionally, a bolt hole 61 is formed in the center of the grounding copper plate 6, and a fixing bolt 62 is arranged in the bolt hole 61. Adopt the mode of bolt fastening, under the prerequisite of guaranteeing joint strength, it is convenient to dismantle when overhauing the completion.
Optionally, a wire end protecting sleeve 211 is arranged below the sealing cover 1, and the wire end protecting sleeve 211 is sleeved on the tail end of the grounding branch 21. Because the earth connection device need often make a round trip to pull out and insert between different feeder pillar, adopt terminal protective sheath 211 can provide the protection to earth connection end and sealed lid hookup location, prevent that the earth connection often buckles and lead to opening circuit.
According to the technical scheme, the application provides a cable elbow type head grounding wire device which comprises a sealing cover, a grounding wire and a grounding copper plate; one end of the grounding wire is connected with the sealing cover; the other end of the grounding wire is connected with the grounding copper plate; the sealing cover is a cylindrical structure formed by connecting a circular bottom surface and a cylindrical surface; the inner wall of the cylindrical surface is provided with a soft sponge layer; a pressure spring and a grounding contact are arranged in the sealing cover; the pressure spring is located in the center of the circular bottom surface, one end of the pressure spring is fixed on the circular bottom surface, and the other end of the pressure spring is connected with the grounding contact. The utility model provides a cable elbow type head earth connection device is through the sealed lid of corresponding size on cable elbow type head end suit to earth connection through sealed lid connection makes cable elbow type head effective ground connection, avoids producing the problem that cable branch box can not articulate the ground wire when individual circuit need have a power failure to overhaul, and the device simple structure of this application, easy and simple to handle, ground connection efficiency is high, effectual.
Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.
It will be understood that the invention is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.
Claims (6)
1. The cable elbow type head grounding wire device is characterized by comprising a sealing cover (1), a grounding wire (2) and a grounding copper plate (6); wherein,
one end of the grounding wire (2) is connected with the sealing cover (1);
the other end of the grounding wire (2) is connected with the grounding copper plate (6);
the sealing cover (1) is a cylindrical structure formed by connecting a circular bottom surface (11) and a cylindrical surface (12); the inner wall of the cylindrical surface (12) is provided with a soft sponge layer (3);
a pressure spring (4) and a grounding contact (5) are arranged in the sealing cover (1); the pressure spring (4) is located in the center of the circular bottom surface (11), one end of the pressure spring (4) is fixed on the circular bottom surface (11), and the other end of the pressure spring (4) is connected with the grounding contact (5).
2. A cable elbow type head earth lug arrangement according to claim 1, characterised in that the number of said sealing caps (1) is three; one end of the grounding wire (2) comprises three same grounding branch wires (21), and each grounding branch wire (21) is connected with one sealing cover (1).
3. A cable elbow type head earth lug according to claim 1, characterised in that the outside of the sealing cover (1) is provided with an insulating layer.
4. A cable elbow termination according to claim 1, wherein the cylindrical surface (12) is located externally of the end of the cable elbow.
5. A cable elbow type head earth lug device according to claim 1, wherein the earthing lug (6) is provided with a bolt hole (61) at the center, and a fixing bolt (62) is provided in the bolt hole (61).
6. The cable elbow type head grounding device according to claim 2, wherein a wire end protective sleeve (211) is arranged below the sealing cover (1), and the wire end protective sleeve (211) is sleeved on the tail end of the grounding branch line (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821094278.XU CN208489502U (en) | 2018-07-11 | 2018-07-11 | A kind of cable elbow-shaped head grounding wire device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821094278.XU CN208489502U (en) | 2018-07-11 | 2018-07-11 | A kind of cable elbow-shaped head grounding wire device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208489502U true CN208489502U (en) | 2019-02-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821094278.XU Active CN208489502U (en) | 2018-07-11 | 2018-07-11 | A kind of cable elbow-shaped head grounding wire device |
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| Country | Link |
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| CN (1) | CN208489502U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112133538A (en) * | 2020-09-23 | 2020-12-25 | 国网山东省电力公司临沂供电公司 | General type transformer low pressure short circuit opening copper tablet |
| CN113972535A (en) * | 2021-11-05 | 2022-01-25 | 国网河南省电力公司济源供电公司 | Elbow type head-mounted ground wire auxiliary device |
-
2018
- 2018-07-11 CN CN201821094278.XU patent/CN208489502U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112133538A (en) * | 2020-09-23 | 2020-12-25 | 国网山东省电力公司临沂供电公司 | General type transformer low pressure short circuit opening copper tablet |
| CN113972535A (en) * | 2021-11-05 | 2022-01-25 | 国网河南省电力公司济源供电公司 | Elbow type head-mounted ground wire auxiliary device |
| CN113972535B (en) * | 2021-11-05 | 2023-08-22 | 国网河南省电力公司济源供电公司 | Elbow type head hanging ground wire auxiliary device |
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