CN213845563U - Improved grounding wire device - Google Patents
Improved grounding wire device Download PDFInfo
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- CN213845563U CN213845563U CN202023115055.7U CN202023115055U CN213845563U CN 213845563 U CN213845563 U CN 213845563U CN 202023115055 U CN202023115055 U CN 202023115055U CN 213845563 U CN213845563 U CN 213845563U
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Abstract
The utility model relates to an improved generation earth connection device is applied to on the transmission and distribution lines, and it constitutes including insulator spindle, the stranded annealed copper line and the earth clamp of taking transparent sheath, can adjust into 0 and 90 angles through the function conversion between earth clamp and the insulator spindle, be used in carrying out the hanging of earth connection under the condition that transmission and distribution electric wire and ground become the contained angle and roughly 0 and 90. The angle between the ground wire and the ground wire can be adjusted according to the actual condition of the included angle formed by the on-site power transmission and distribution wire and the ground during hanging operation, so that the vertical angle between the ground wire clamp and the power transmission and distribution wire can be ensured when the ground wire is hung, and the wire can smoothly enter the jaw of the ground wire clamp and clamp the ground wire clamp. The utility model discloses simple structure, it is with low costs, the practicality is strong, has great spreading value.
Description
Technical Field
The utility model belongs to the electrical equipment field, concretely relates to improved generation earth connection device.
Background
An overhead power line is a power device for electric energy transmission, is mostly made of steel-cored aluminum stranded wires, and has a cross section ranging from 35 mm to 630mm2And when the device is not equal, the device needs to be grounded through a grounding device during maintenance. During grounding operation, a grounding wire device (hereinafter referred to as a grounding wire) with an insulating rod is needed, and the grounding wire consists of the insulating rod, a plurality of strands of annealed copper wires with transparent sheaths and a grounding wire clamp.
The aerial power line and the ground plane form different included angles due to different positions, and the included angles are different from 0 to 90 degrees. When the ground wire is hung, an operator needs to climb up a tower or use an operation platform and keep a certain safe distance with a line, then the grounding end of the ground wire is firstly grounded (namely, a wire clamp of the grounding end is fixed on an iron tower angle iron or a grounding down-lead of a cement pole), then the insulating rod is lifted to lift the ground wire clamp upwards, a lead enters a jaw (a port between a fixed part and a movable part) of the ground wire clamp, the insulating rod is rotated, and the transmission device enables the movable part of the ground wire clamp to move upwards, so that the ground wire clamp clamps the lead.
Because the earth clamp is adorned in insulator spindle one end (be the upper end), what operating personnel picked up during the operation is the other end (be the lower extreme) of insulator spindle, because the voltage grade is different, the insulator spindle can have 1.5 meters to 3 meters long, lift the earth connection and can be very hard, under the condition that satisfies the service function, the volume of earth clamp is less, light more is better more than light, therefore the earth connection presss from both sides the mouth and can not open up too big. When the wires of the power line are clamped into the jaws, the jaws must be parallel to the wires, i.e. the plane of the long side of the ground clamp must be perpendicular to the wires. If the long-edge plane is not perpendicular to the wire, on one hand, the operation is very laborious, and the wire can not enter the wire clamp jaw; on the other hand, the wire may be hung in the wire clamp jaw, but the hanging is not firm, so that the hung grounding wire falls off or the contact is poor, if the circuit suddenly comes in or the induction current on the circuit is too large, the electric shock casualties of the operating personnel on the circuit can be caused, and the serious production safety accidents are caused.
Because the reason above, consequently the job site needs the earth connection of 0 and 90 contained angles between an insulator spindle and the fastener respectively to satisfy the different requirements of erectting the condition of job site overhead wire, the utility model discloses unite two into one two kinds of functions through the functional transformation on the basis of above-mentioned earth connection, formed the novel earth connection device of contained angle adjustable.
SUMMERY OF THE UTILITY MODEL
For overcoming the defect of background art, the utility model provides an improved generation earth connection device is realized through following technical scheme.
The improved grounding wire device consists of an insulating rod, a plurality of strands of annealed copper wires with transparent sheaths and a grounding wire clamp, wherein the grounding wire clamp and the insulating rod can be adjusted to form angles of 0 degree and 90 degrees, and the relative parts are controlled to be fixed or rotated by adjusting the screwed depth of 2 adjusting bolts so as to perform corresponding function conversion and be used for hooking a grounding wire under the condition that the included angles of 0 degree and 90 degrees are formed between a power transmission and distribution wire and the ground.
The grounding wire clamp is further characterized in that the fixed part and the moving part of the grounding wire clamp are respectively provided with 1 adjusting bolt, 2 adjusting rods which can be coaxially connected with the insulating rod are arranged, the 2 adjusting rods are mutually vertical and are driven by the bevel gears, the insulating rod is connected with different adjusting rods during working, and the grounding wire clamp can form an angle of 0 degree and an angle of 90 degrees with the insulating rod and is used for hanging the grounding wire under the condition that the power transmission and distribution wire and the ground form an angle of 0 degree and an angle of 90 degrees approximately.
Further, it is characterized in that different adjusting rods are connected through the insulating rod, and the screwing depth of 2 adjusting bolts is adjusted to control the related parts to be fixed or rotated, so as to form 2 transmission combinations for function conversion:
(1) combination 1: the insulating rod is connected with the first adjusting rod, the first adjusting bolt is screwed out until the adjusting rod can rotate relative to the movable part, the second adjusting bolt is screwed in until the hollow shaft bevel gear cannot rotate relative to the L-shaped angle iron, at the moment, the ground wire clamp and the insulating rod form an angle of 0 degree, the insulating rod is rotated in the forward direction or the reverse direction, and the movable part of the ground wire clamp moves upwards or downwards to clamp or loosen the electric wire, so that the function of the device is realized.
(2) And (3) combination 2: the insulating rod is connected with a second adjusting rod, the second adjusting bolt is screwed out until the hollow shaft bevel gear can rotate relative to the L-shaped angle iron, the first adjusting bolt is screwed in until the corresponding adjusting rod cannot rotate relative to the movable part, at the moment, the grounding wire clamp and the insulating rod form an angle of 90 degrees, the insulating rod is rotated in the forward direction or the reverse direction, the movable part of the grounding wire clamp moves upwards or downwards to clamp or loosen the electric wire, and therefore the function of the device is achieved.
The control (adjusting) bolt is added on the basis of the working principle of the universal (i.e. the universal grounding wire sold in the market) grounding wire, and the hollow shaft bevel gear and the screw rod can rotate or can not rotate relative to the associated parts through the screwing-in depth of the adjusting bolt, so that the original structure of the universal grounding wire is changed, one set of equipment has the functions of two sets of equipment, meanwhile, the grounding wire clamp can reliably clamp the conducting wire, and the occurrence of electric power production safety accidents caused by the fact that the grounding wire is not firmly connected is effectively prevented. Therefore, the utility model has the advantages that: the utility model discloses simple structure, it is with low costs, the practicality is strong, has great spreading value.
Drawings
Fig. 1 is a schematic perspective view of a ground wire device according to an embodiment of the present invention.
Fig. 2 is a side sectional view of the ground wire device according to the embodiment of the present invention.
Fig. 3 is a front sectional view of a ground wire device according to an embodiment of the present invention.
Fig. 4 is a schematic diagram of the application of the embodiment of the present invention on a 110kV line, where 4-1 is the application where the wire forms an angle of 90 ° with the ground, and 4-2 is the application where the wire forms an angle of 0 ° with the ground.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
As shown in fig. 1-4, an improved grounding wire device for power transmission and distribution lines comprises an insulating rod 14, which can be coupled with adjusting rods (5, 9) (the insulating rod 14 is not shown in fig. 1, 2 and 3), a transparent sheathed stranded soft copper wire 8 (containing a bolt) and a grounding wire clamp 1.
The adjustment bars comprise a first adjustment bar 5 and a second adjustment bar 9.
Fixed part 1 of ground clamp: generally made of aluminum alloy by casting, and is a bracket for a wire clamp jaw. The movable part 2 of the ground wire clamp and the fixed part 1 form a wire clamp jaw which is U-shaped, the movable part 2 can slide up and down along a sliding groove on the fixed part 1, the insulating rod 14 is rotated to drive the adjusting rods (5 and 9), the rotary motion is converted into linear motion through the screw rod, and the screw rod 5 moves up and down to drive the movable part 2 to clamp or loosen the wire.
The fixing part consists of a wire hook and an L-shaped angle iron, the wire hook and the L-shaped angle iron are integrated through a casting mode, 2 holes with the diameter of phi 25mm are drilled in the L-shaped angle iron, the centers of the holes are mutually vertical and are in the same plane, a solid shaft with an umbrella-shaped gear and a hollow shaft with the shaft outer diameter of phi 25-0.1mm are respectively penetrated into the holes, and two ends of the shaft are fixed by clamp springs so that the shaft can rotate in the holes.
The movable portion 2: the movable part of the ground clamp is provided with a circular boss protruding from the lower part of the movable part and drilled with a blind hole with the diameter of 20mm, one end of a screw rod is arranged in the blind hole, the outer diameter of the blind hole is 20-0.1mm, the top end of the blind hole is drilled with a screw hole of M6 concentric with the shaft, and a bolt 11 arranged in the blind hole is connected with the movable part 2 of the ground clamp in a rotatable mode. 1M 6 bolt holes are drilled perpendicular to the circular boss, the holes penetrate through the boss wall and enter the adjusting rod for 4mm, the adjusting bolt of M6 is installed, the screwing depth is adjusted, the adjusting rod can be rotated or not rotated in the boss, and therefore function conversion is achieved, and the function of the movable part 2 is described in the previous description. The movable part 2 also has the function of limiting the rotation of the screw 5, so that the rotary motion of the hollow shaft bevel gear 3 is converted into the linear motion of the screw 5.
Hollow shaft bevel gear 3: the outer diameter is embedded in the L-shaped angle iron of the fixed part and can rotate, the inner diameter is provided with M20 internal threads, and the inner part is penetrated with an adjusting rod 5 provided with M20 external threads. And 1M 6 bolt holes are drilled at the position vertical to the axle center of the bevel gear 3, the holes penetrate through the L-shaped angle iron wall and enter the hollow shaft bevel gear by 2mm, and an M6 adjusting bolt 7 is arranged in the holes to adjust the screwing depth of the holes, so that the hollow shaft bevel gear can rotate or can not rotate in the L-shaped angle iron wall, and the function conversion is realized. The hollow shaft bevel gear 3 is rotated clockwise or counterclockwise, so that the screw 5 can move up and down, and the movable part 2 is driven to move up and down. The insulating rod 14 can also be rotated (connected with the adjusting rod 9), the power is transmitted to the hollow shaft bevel gear 3 through the solid shaft bevel gear 4, the hollow shaft bevel gear 3 rotates to enable the screw rod 5 and the component 2 to move up and down, the movable part 2 moves upwards to clamp the conducting wire, and the conducting wire is loosened when the movable part moves downwards.
The solid shaft bevel gear 4 is arranged at the top end of the second adjusting rod 9, the shaft center of the solid shaft bevel gear 4 is vertical to and meshed with the shaft of the hollow shaft bevel gear 3, and the function of the solid shaft bevel gear 4 is shown in the description of the hollow shaft bevel gear 3 and the solid shaft bevel gear 4.
First adjusting rod 5 (i.e. screw) coupled with the insulating rod: the lower end of which may be coupled with an insulating rod.
The adjusting bolt comprises a first adjusting bolt 6 and a second adjusting bolt 7.
First adjusting bolt 6: screwed into a threaded hole in a circular boss on the active part 2 of the earth clamp, which functions as part of the adjusting bolt 6 described for the part 2 of the earth clamp.
Second adjusting bolt 7: screwed into threaded holes in the walls of the L-shaped angle-bars, the function of which is described above.
Fixing bolt (stranded annealed copper wire) 8: the flexible copper wire fixing device is arranged on the side edge of the fixing part 1 of the grounding wire clamp, and one end of a plurality of strands of flexible copper wires with transparent sheaths is fixed on the fixing part 1 of the grounding wire clamp. The multi-strand annealed copper wire with the transparent sheath has one end fixed on the component 1 and the other end fixed on the grounding wire clamp (namely clamped on the grounding down lead part of the iron tower angle iron or the cement pole).
The second adjusting lever 9: the lower end of the insulating rod can be connected with the insulating rod, the top end of the insulating rod is provided with an umbrella-shaped gear 4, and the rotating insulating rod can drive the movable part 2 to clamp or loosen the electric wire.
L-shaped angle iron 10: the ground wire clamp is integrated with the fixed part 1 of the ground wire clamp, is a framework of the whole wire clamp, and is drilled with a hole for fixing an adjusting rod 9, an umbrella-shaped gear 3, an adjusting bolt 7 and a fixing bolt 8.
Bolt 11: the adjustment lever 5 is fixed to the movable part 2 of the earth clamp and can be rotated relative thereto, as seen in the bolt 11 portion described for the part 2 of the earth clamp.
The elastic snap ring 12: the hollow shaft bevel gear 3 is fixed, and the bevel gear 3 can rotate in the hole of the L-shaped angle iron.
Elastic snap ring 13: plays the role of fixing the adjusting rod 9 and ensures that the adjusting rod 9 can rotate in the hole of the L-shaped angle iron.
Insulating rod 14 (not shown in fig. 1, 2, 3): the detachable wire clamp is coaxially connected with the bottom ends of the adjusting rods 5 and 9, plays a role in supporting and operating the whole wire clamp, is different in working voltage grade, is about 1.5-3 meters in length, and is made of insulating materials.
The size marked by the device is reference data, and the size data can be any size data which can effectively realize the functions. The embodiment of the present invention is shown in fig. 4, and the arc-shaped object is an overhead electric (conductive) wire.
The earthing clamp can be adjusted into 0 and 90 angle with the insulator spindle, and the rethread adjusting bolt carries out the function conversion, consequently this device can conveniently hang into on the power transmission and distribution electric wire that becomes arbitrary contained angle with ground (during the operation operating personnel make the insulator spindle have certain gradient in order to adapt to the wire inclination), labour saving and time saving during the operation guarantees that the contact is good, can prevent effectively that the earth connection from articulating insecure or contact failure and causing great production incident. Therefore, the utility model relates to an earth connection device simple structure, low cost, practicality are strong, have great spreading value.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. An improved grounding wire device is applied to a power transmission and distribution line and comprises an insulating rod, a plurality of strands of soft copper wires with transparent sheaths and a grounding wire clamp; the ground wire device is characterized in that the fixed part and the movable part of the ground wire clamp are respectively provided with an adjusting bolt, the ground wire clamp is also provided with adjusting rods which are perpendicular to each other and are connected with an insulating rod, bevel gears which are associated with the adjusting rods are mutually meshed and can be used for transmission, the insulating rod is connected with different adjusting rods, the ground wire clamp and the insulating rod can form an angle of 0 degree and an angle of 90 degrees, and the ground wire device is used for hanging and connecting a ground wire under the condition that a power transmission and distribution wire and the ground form an angle of 0 degree and an angle of 90 degrees.
2. The improved grounding device as claimed in claim 1, wherein the grounding device comprises a hollow shaft umbrella gear, the outer diameter of the hollow shaft umbrella gear is embedded in the L-shaped angle iron of the fixed part and can rotate, the inner diameter of the hollow shaft umbrella gear is provided with an internal thread, the internal thread is used for penetrating into an adjusting rod which is matched with the hollow shaft and has an external thread, the top end of the adjusting rod is provided with a screw hole which is concentric with the shaft, and a bolt is arranged in the screw hole and is connected with the movable part of the grounding clamp in a rotatable mode.
3. The improved ground wire device as claimed in claim 2, wherein a bolt hole is provided at a position perpendicular to the axial center of the screw, said bolt hole penetrating the wall of the movable portion of the wire clamp and entering the screw, for effecting the function change by adjusting the depth of screwing of the bolt for making the screw rotatable or non-rotatable in the movable portion of the wire clamp.
4. The improved ground wire device as claimed in claim 2, wherein a bolt hole is formed in a portion perpendicular to the axis of the hollow shaft bevel gear, the bolt hole penetrates through the L-shaped angle iron wall and enters the bevel gear, and the function switching is performed by adjusting the screwing depth of the bolt so that the bevel gear can be rotated or not rotated in the L-shaped angle iron wall.
5. The improved grounding wire assembly of claim 1, wherein said grounding clip is made of a material comprising steel, copper, or aluminum metal.
6. The improved ground wire assembly of claim 1 wherein said insulating rod is a hollow or solid rod made of an insulating material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023115055.7U CN213845563U (en) | 2020-12-22 | 2020-12-22 | Improved grounding wire device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023115055.7U CN213845563U (en) | 2020-12-22 | 2020-12-22 | Improved grounding wire device |
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| Publication Number | Publication Date |
|---|---|
| CN213845563U true CN213845563U (en) | 2021-07-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023115055.7U Active CN213845563U (en) | 2020-12-22 | 2020-12-22 | Improved grounding wire device |
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| CN (1) | CN213845563U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114171940A (en) * | 2021-12-02 | 2022-03-11 | 贵州电网有限责任公司 | Device and method for preventing short circuit of low-voltage line |
| CN114792894A (en) * | 2022-05-17 | 2022-07-26 | 中国南方电网有限责任公司超高压输电公司南宁局 | Grounding wire clamping device |
-
2020
- 2020-12-22 CN CN202023115055.7U patent/CN213845563U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114171940A (en) * | 2021-12-02 | 2022-03-11 | 贵州电网有限责任公司 | Device and method for preventing short circuit of low-voltage line |
| CN114792894A (en) * | 2022-05-17 | 2022-07-26 | 中国南方电网有限责任公司超高压输电公司南宁局 | Grounding wire clamping device |
| CN114792894B (en) * | 2022-05-17 | 2024-04-02 | 中国南方电网有限责任公司超高压输电公司南宁局 | Grounding wire clamping device |
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