CN213366836U - Hand throwing formula earth connection connecting device - Google Patents
Hand throwing formula earth connection connecting device Download PDFInfo
- Publication number
- CN213366836U CN213366836U CN202022289803.7U CN202022289803U CN213366836U CN 213366836 U CN213366836 U CN 213366836U CN 202022289803 U CN202022289803 U CN 202022289803U CN 213366836 U CN213366836 U CN 213366836U
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- CN
- China
- Prior art keywords
- grounding wire
- wire head
- connection unit
- switching connection
- grounding
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- 239000011324 bead Substances 0.000 claims description 18
- 230000005540 biological transmission Effects 0.000 abstract description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 229910052802 copper Inorganic materials 0.000 description 5
- 239000010949 copper Substances 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- JRBRVDCKNXZZGH-UHFFFAOYSA-N alumane;copper Chemical compound [AlH3].[Cu] JRBRVDCKNXZZGH-UHFFFAOYSA-N 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
Images
Abstract
The utility model relates to an electric power system transmission line field specifically relates to a formula earth connection connecting device is thrown to hand, include: a ground terminal having a U-shape as a whole; the lead clamping unit is arranged at the bent pipe of the grounding wire head; the switching connection unit is provided with a groove for inserting the support arm at one side of the grounding wire head, and the grounding wire head can rotate around a hinge shaft which is positioned in the groove of the switching connection unit; the fixing piece is used for locking and fixing the switching connection unit to keep the switching connection unit and the support arm of the grounding wire head in a flat state; and one end of the insulating rope is fixed on the outer side of the bent pipe of the grounding wire head, passes through the fixing piece connecting ring and extends to the grounding end of the grounding wire. The utility model provides a formula earth connection connecting device is thrown to hand can realize the remote dismouting earth connection in tens of meters high altitude around the operation, has improved security and the operating efficiency that superhigh pressure or extra-high voltage line overhauld.
Description
Technical Field
The utility model relates to an electric power system transmission line field specifically relates to a formula earth connection connecting device is thrown to hand.
Background
The grounding wire is a safety tool used by power workers during power failure operation, when power failure maintenance is carried out, the grounding wire is prevented from being arranged on each side where power is possibly supplied, the workers connect electrical equipment with a grounding body, the working place is always protected by ground potential, and damage to the power failure workers caused by induced charges and residual charges can be prevented. The grounding wire is divided into three parts, namely a grounding end, a grounding head and a grounding rod (copper wire), wherein the grounding rod is generally composed of a glass fiber epoxy resin rod (commonly called glass fiber reinforced plastic), and has the characteristics of high strength, good corrosion resistance and excellent insulating property; the grounding rod head is a cast aluminum (copper) piece; the outside of the grounding wire is wrapped by a transparent insulating material, and the red copper inner core has high conductivity and better ductility and corrosion resistance.
In the repair grounding of 500kV and above extra-high voltage lines, a soft copper grounding wire is generally used, one end of the soft copper grounding wire is connected with a power transmission tower body cross arm grounding body, and the other end of the soft copper grounding wire is vertically connected with a lower lead. When a large corner (more than 30 degrees) appears in the advancing direction of a power transmission line, a wire (jumper wire) on the inner corner side of the corner tower extends outwards in a direction perpendicular to the line direction, and particularly for the corner tower without the jumper wire string, an operator stands on the top end of the cross arm, the distance from the jumper wire is long, the wire end is difficult to be hooked, and the phenomenon is more obvious when the turning angle of the line is larger. The rod type grounding wire is provided with the insulating support rod during design, so that an operator can theoretically hold the bottom end of the support rod by hand and stretch out a grounding wire head to a wire end to complete hanging connection. However, the insulation combination of the 500kV and above ultra (extra) high-voltage line is long, generally more than 5m, the rod type grounding wire is heavy as a whole, the hanging connection at a height of tens of meters is difficult, and the falling risk is high during operation.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the problem that prior art exists, provide a formula earth connection connecting device is thrown to hand, this formula earth connection connecting device is thrown to hand has weight lighter, simple structure, and the operation is safe, the characteristics of the operation personnel of being convenient for operate.
In order to achieve the above object, the utility model provides a formula earth connection connecting device is thrown to hand, include:
a ground terminal having a U-shape as a whole;
the lead clamping unit is arranged at the bent pipe of the grounding wire head and used for clamping and fixing the lead to be grounded;
the switching connection unit is provided with a groove for inserting the support arm at one side of the grounding wire head, and the grounding wire head can rotate around a hinge shaft which is positioned in the groove of the switching connection unit;
the fixing piece is arranged on the switching connection unit and used for locking and fixing the switching connection unit to keep the switching connection unit and the support arm of the grounding wire head in a flat state;
one end of the insulating rope is fixed on the outer side of the bent pipe of the grounding wire head, and the other end of the insulating rope freely extends after the fixing piece is fixed on the rope body of the insulating rope;
the fixing piece can fix the switching connection unit to enable the switching connection unit and the support arm of the grounding wire head to be in a horizontal working position, or the fixing piece is released from a fixed state when the insulating rope is stretched, and the grounding wire head is separated from the clamped wire when the insulating rope is continuously pulled.
Preferably, the hand-throwing type ground wire connecting device further comprises: and the adapter ring is arranged at one end of the adapter connecting unit far away from the groove.
Preferably, the wire clamping unit is a set of spring clips, and the direction of the opening of each spring clip is consistent with the direction of the opening of the grounding wire head.
Preferably, the top end of the grounding wire head is welded with a hanging ring for connecting and fixing the insulating rope.
Preferably, the fixing piece is a single-steel-bead quick-release bolt, a ring connected with the insulating rope and a single-steel-bead elastic bulge are arranged on the single-steel-bead quick-release bolt, and a first pin hole which is obliquely arranged is arranged on a supporting arm at one side of the grounding wire head, which is hinged with the switching connection unit; a protrusion is arranged at the top end of the groove of the adapter connector, and a second pin hole which is obliquely arranged is arranged on the protrusion; the single-steel-bead quick-release bolt can be sequentially inserted into the second pin hole and the first pin hole, and after the single-steel-bead quick-release bolt is inserted in place, a steel bead of the single-steel-bead quick-release bolt is popped out to enable the switching connection unit and the support arm of the grounding wire end to be kept in a horizontal working state.
Through the technical scheme, the utility model discloses following technological effect has:
the utility model provides a formula earth connection connecting device is thrown to hand can realize remote upset around the operation, realizes remote dismouting earth connection when carrying out high altitude construction on tens of meters or even higher transmission line shaft towers, and the device need not support the insulator spindle, has reduced the dead weight of earth connection, simple structure, and the flexible operation is fit for using with any angle corner tower of superhigh pressure or extra-high voltage line transmission line, has improved the security and the operating efficiency that superhigh pressure or extra-high voltage line overhauld.
Drawings
Fig. 1 is a schematic structural view of a hand-throwing type ground wire connection device according to an embodiment of the present invention;
fig. 2 is a side view of a hand-thrown ground connection device according to an embodiment of the present invention;
fig. 3 is a schematic structural view of a hand-throwing type ground wire connecting device according to an embodiment of the present invention in an operating state;
fig. 4 is a schematic structural view of a single steel bead quick release latch according to an embodiment of the present invention.
Description of the reference numerals
1 hanging ring 2 earthing wire end
3 wire clamping unit 4 pin hole
41 first pin hole 42 second pin hole
5 hinged shaft 6 fixing piece
7 switching connection unit 8 switching ring
9 insulating rope 10 first rotating shaft hole
11 second rotating shaft hole 12 bulge
61 connecting ring 62 single steel ball elastic projection
Detailed Description
The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings. It is to be understood that the description of the embodiments herein is for purposes of illustration and explanation only and is not intended to limit the invention.
Fig. 1 is a schematic structural view of a hand-throwing type ground wire connection device according to an embodiment of the present invention; fig. 2 is a side view of a hand-thrown ground connection device according to an embodiment of the present invention; fig. 3 is a schematic structural diagram of a hand-throwing type ground wire connecting device according to an embodiment of the present invention in an operating state. As shown in fig. 1-3, the utility model provides a formula earth connection connecting device is thrown to hand, include: a ground terminal 2 having a U-shape as a whole;
the lead clamping unit 3 is arranged at the bent pipe of the grounding wire head 2 and used for clamping and fixing the lead to be grounded;
the switching connection unit 7 is provided with a groove for inserting one side support arm of the grounding wire head 2, and the grounding wire head 2 can rotate around a hinge shaft 5 which is positioned in the groove with the switching connection unit;
the fixing piece 6 is arranged on the switching connection unit 7 and used for locking and fixing the switching connection unit 7 to keep the switching connection unit 7 and the support arm of the grounding wire head 2 in a flat state;
one end of an insulating rope 9 is fixed on the outer side of the bent pipe of the grounding wire head 2 and passes through a fixing piece connecting ring, and the other end of the insulating rope 9 freely extends after the fixing piece 6 is fixed on the rope body of the insulating rope 9;
the fixing piece 6 can fix the switching connection unit 7 to enable the switching connection unit and the support arm of the grounding wire head 2 to be in a horizontal working position, or the fixing piece 6 is released from a fixed state when the insulating rope 9 is stretched, and the grounding wire head 2 is separated from a clamped wire when the insulating rope is continuously pulled.
The utility model discloses in, formula earth connection connecting device is thrown to hand's working process does: (1) inserting the hinge shaft 5 into the second pivot hole 11 on the ground terminal 2 and the first pivot hole 10 on the transfer connecting unit 7 to hinge the ground terminal 2 and the transfer connecting unit 7 so that the ground terminal 2 can flexibly rotate (the rotation angle is more than or equal to 150 °) relative to the transfer connecting unit 7 in a plane perpendicular to the hinge shaft 5, then passing the insulating rope 9 through the fixing member 6, and fixing the transfer connecting unit 7 with the fixing member 6 so that the transfer connecting unit 7 is in a horizontal working position with the support arm of the ground terminal 2; and then the insulating rope 9 is fixed on the grounding wire head 2, the grounding wire is fixed on the switching connection unit 7, and the modified grounding wire device head is connected. (2) When the device is used, after the circuit is determined to be uncharged by experience, the grounding end of the grounding wire is connected, the wire coil and the grounding wire head 2 are drawn in, the grounding wire head is thrown out to the outer side of the wire on the inner corner side, the wire is clamped by the wire clamping unit 3 after the wire is hooked reversely, the grounding wire is tightened, the insulating rope 9 is fixed at the grounding end, and the circuit maintenance is started. (3) After the line maintenance is finished, the edge rope 9 is pulled forcefully to pull out the fixing piece 6, so that the grounding wire head 2 is recovered to rotate freely on the vertical plane, then the edge rope 9 is pulled continuously to enable the grounding wire head 2 to be separated from the clamped wire after being overturned for about 150 degrees along the articulated shaft 5 in the plane vertical to the articulated shaft 5, the wire end is removed, then the grounding end and the grounding wire are removed, and the removal work is finished.
As shown in fig. 1 and 3, in a preferred embodiment of the present invention, the hand-throwing type ground wire connection device further includes: and the adapter ring 8 is arranged at one end of the adapter connecting unit 7, which is far away from the groove, so that the adapter ring can be connected with soft copper grounding wires with different sections, and the application range of the adapter ring is expanded.
As shown in fig. 1 and 3, in a preferred embodiment of the present invention, the wire clamping unit 3 is a set of spring clips, and the opening directions of the spring clips are consistent with the opening directions of the ground terminal 2.
As shown in fig. 1 and 3, in a preferred embodiment of the present invention, a hanging ring 1 is welded to the top end of the ground connection terminal 2 for connecting and fixing the insulating rope 9.
As shown in fig. 1, 3 and 4, in a preferred embodiment of the present invention, the fixing member 6 is a single steel ball quick release pin, and the retractable positioning pin is provided with a ring 61 connected to the insulating rope and an elastic steel ball protrusion 62; a first pin hole 41 which is obliquely arranged and matched with the telescopic positioning pin for use is formed in a supporting arm at one side, hinged with the switching connection unit 7, of the grounding wire head 2; a protrusion 12 is arranged at the top end of the groove of the adaptor connector 7, and a second pin hole 42 which is obliquely arranged and is matched with the telescopic positioning pin for use is arranged on the protrusion 12; the single-steel-bead quick-release bolt can be sequentially inserted into the second pin hole 41 and the first pin hole 42, and after the single-steel-bead quick-release bolt is inserted in place, a steel ball of the single-steel-bead quick-release bolt is ejected out, so that the transfer connection unit and the support arm of the grounding wire head are kept in a horizontal working state. Further preferably, the pin is obliquely inserted to the ground terminal pin hole at 45 °.
The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited thereto. The technical scheme of the utility model in the technical conception scope, can be right carry out multiple simple variant. Including each of the specific features, are combined in any suitable manner. In order to avoid unnecessary repetition, the present invention does not separately describe various possible combinations. These simple variations and combinations should also be considered as disclosed in the present invention, all falling within the scope of protection of the present invention.
Claims (5)
1. A hand-thrown ground wire connection device, comprising:
a ground terminal having a U-shape as a whole;
the lead clamping unit is arranged at the bent pipe of the grounding wire head and used for clamping and fixing the lead to be grounded;
the switching connection unit is provided with a groove for inserting the support arm at one side of the grounding wire head, and the grounding wire head can rotate around a hinge shaft which is positioned in the groove of the switching connection unit;
the fixing piece is arranged on the switching connection unit and used for locking and fixing the switching connection unit to keep the switching connection unit and the support arm of the grounding wire head in a flat state;
one end of the insulating rope is fixed on the outer side of the bent pipe of the grounding wire head, and the other end of the insulating rope freely extends after the fixing piece is fixed on the rope body of the insulating rope;
the fixing piece can fix the switching connection unit to enable the switching connection unit and the support arm of the grounding wire head to be in a flat working position, or the fixing piece is released from a fixed state when the insulating rope is stretched, and the grounding wire head is separated from the clamped lead when the insulating rope is continuously pulled.
2. The hand-thrown ground cord connection device as claimed in claim 1, further comprising:
and the adapter ring is arranged at one end of the adapter connecting unit far away from the groove.
3. The hand-throwing type ground wire connecting device as claimed in claim 1, wherein the wire clamping unit is a set of spring clips, and the opening directions of the spring clips are consistent with the opening direction of the ground wire head.
4. The hand-throwing type ground wire connecting device as claimed in claim 1, wherein a hanging ring is welded at the top end of the ground wire head for connecting and fixing the insulating rope.
5. The hand-throwing type ground wire connecting device as claimed in claim 1, wherein the fixing member is a single-steel-bead quick-release bolt, and a ring and a single-steel-bead elastic projection connected with the insulating rope are arranged on the single-steel-bead quick-release bolt;
a first pin hole which is obliquely arranged is formed in a supporting arm at one side of the grounding wire head, which is hinged with the switching connection unit;
a protrusion is arranged at the top end of the groove of the switching connection unit, and a second pin hole which is obliquely arranged is arranged on the protrusion; the single-steel-bead quick-release bolt can be sequentially inserted into the second pin hole and the first pin hole, and after the single-steel-bead quick-release bolt is inserted in place, the single-steel-bead elastic bulge of the single-steel-bead quick-release bolt pops up to enable the switching connection unit and the support arm of the grounding wire head to be kept in a flat state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022289803.7U CN213366836U (en) | 2020-10-13 | 2020-10-13 | Hand throwing formula earth connection connecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022289803.7U CN213366836U (en) | 2020-10-13 | 2020-10-13 | Hand throwing formula earth connection connecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213366836U true CN213366836U (en) | 2021-06-04 |
Family
ID=76128099
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022289803.7U Active CN213366836U (en) | 2020-10-13 | 2020-10-13 | Hand throwing formula earth connection connecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213366836U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113922112A (en) * | 2021-09-15 | 2022-01-11 | 国网安徽省电力有限公司检修分公司 | Wire clamping device for short circuit grounding of power transmission line |
-
2020
- 2020-10-13 CN CN202022289803.7U patent/CN213366836U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113922112A (en) * | 2021-09-15 | 2022-01-11 | 国网安徽省电力有限公司检修分公司 | Wire clamping device for short circuit grounding of power transmission line |
| CN113922112B (en) * | 2021-09-15 | 2023-12-05 | 国网安徽省电力有限公司超高压分公司 | Wire clamping device for short circuit grounding of power transmission line |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No. 397, Tongcheng South Road, Baohe District, Hefei City, Anhui Province 230061 Patentee after: Super high voltage branch of State Grid Anhui Electric Power Co.,Ltd. Address before: No. 397, Tongcheng South Road, Baohe District, Hefei City, Anhui Province 230061 Patentee before: STATE GRID ANHUI POWER SUPPLY COMPANY OVERHAUL BRANCH |
|
| CP01 | Change in the name or title of a patent holder |