CN111834765A - Short circuit grounding mechanism - Google Patents
Short circuit grounding mechanism Download PDFInfo
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- CN111834765A CN111834765A CN202010696474.XA CN202010696474A CN111834765A CN 111834765 A CN111834765 A CN 111834765A CN 202010696474 A CN202010696474 A CN 202010696474A CN 111834765 A CN111834765 A CN 111834765A
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- sleeve
- circuit grounding
- short circuit
- short
- grounding
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- 230000007246 mechanism Effects 0.000 title claims abstract description 14
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 47
- 239000010959 steel Substances 0.000 claims abstract description 47
- 210000000078 claw Anatomy 0.000 claims abstract description 39
- 230000007935 neutral effect Effects 0.000 claims abstract description 7
- 239000002184 metal Substances 0.000 claims abstract description 4
- 238000007514 turning Methods 0.000 claims description 23
- 238000000926 separation method Methods 0.000 claims description 18
- 230000033001 locomotion Effects 0.000 claims description 6
- 230000007547 defect Effects 0.000 abstract description 4
- 238000010276 construction Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 5
- 230000005611 electricity Effects 0.000 description 4
- 230000006872 improvement Effects 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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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
- H01R11/22—End pieces terminating in a spring clip
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/145—Indicating the presence of current or voltage
- G01R19/155—Indicating the presence of voltage
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/46—Bases; Cases
- H01R13/514—Bases; Cases composed as a modular blocks or assembly, i.e. composed of co-operating parts provided with contact members or holding contact members between them
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/58—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation characterised by the form or material of the contacting members
- H01R4/66—Connections with the terrestrial mass, e.g. earth plate, earth pin
Abstract
The invention discloses a short circuit grounding mechanism, which comprises a telescopic fixing frame fixed on a wire tower and a short circuit grounding device detachably connected with the telescopic fixing frame, and is characterized in that: the telescopic fixing frame comprises a mechanical frame movably and fixedly connected with the wire tower; the telescopic fixing frame also comprises a telescopic sleeve which is adjustably connected to the mechanical frame; the end part of the telescopic sleeve can be detachably connected with the short circuit grounding device; the short circuit grounding device comprises a concave grounding seat, a steel claw is arranged at the end part of the concave grounding seat, the steel claw is arranged at the end part of the grounding seat through an elastic spring and a hinged piece, and the elastic spring enables the steel claw to keep a neutral position under the condition of no stress; and a grounding wire is arranged at the metal part of the grounding seat. The invention has the advantages of overcoming the defect of manual wiring of the short-circuit grounding device in the prior art and canceling the handle end of the short-circuit grounding device. The condition that the wire end clamp automatically drops can not be generated because a plurality of wire end clamps are carried manually is reduced.
Description
Technical Field
The invention relates to equipment for overhauling electric power, in particular to a short circuit grounding mechanism.
Background
The existing short circuit grounding device is a safety tool for temporarily grounding power equipment which has been powered off when the power equipment is overhauled, and aims to release residual electric charges of the power equipment, prevent the influence of an induced electricity generated by a sudden power supply or adjacent live equipment and lines and prevent the occurrence of electric shock accidents of workers.
Later, a new short circuit grounding device was invented, as in application No.: CN200820201388, abstract: a short circuit grounding device is used for a safety tool or an appliance used when electric equipment is overhauled and comprises a wire end clamp and an electricity testing device, wherein the wire end clamp comprises a pair of clamping plates which are rotatably connected by virtue of a rotating shaft and provided with arc-shaped occlusion ports at the upper parts, the upper end of one clamping plate is a convex plate, and the upper end of the other clamping plate is a concave plate matched with the convex plate; the inner side wall of the lower part of the two clamping plates is provided with a pair of modules, the opposite surfaces of the two modules are symmetrically provided with a T-shaped groove, the front end of the electricity testing device is provided with an extension rod matched with the T-shaped groove combined with the two modules, but the short circuit grounding device is easily removed when people do not notice the feet during operation, so that accidents are caused, and therefore, the existing technology is replaced by the short circuit grounding device manually fastening the wires according to the regulations in the power transformation system.
In addition, the existing wire end clamp has the following defects:
1. the existing short circuit grounding device is long due to the fact that the wire end clamp has the handle end, and workers are troublesome in carrying at least the wire tower end;
2. since the height of the wire tower is high, when performing an operation, since the short-circuit grounding device is heavy, the operation is very difficult when performing an end-connection of the electric wire, and when a person is in a horizontal position with the electric wire, the operation is difficult.
There is a need for a comprehensive short-circuit grounding mechanism to solve the above problems.
Disclosure of Invention
Aiming at the defects of inconvenient carrying and poor operability in the short circuit grounding device in the prior art, the invention provides a short circuit grounding mechanism which is changed from the original manual short circuit grounding mode to a mechanical directional grounding mode so as to solve the problems.
The scheme of the invention is realized by the following steps: constructing a short circuit grounding mechanism, which comprises a telescopic fixed frame fixed on a wire tower and a short circuit grounding device detachably connected with the telescopic fixed frame, wherein the telescopic fixed frame comprises a mechanical frame movably and fixedly connected with the wire tower; the telescopic fixing frame also comprises a telescopic sleeve which is adjustably connected to the mechanical frame;
the end part of the telescopic sleeve can be detachably connected with the short circuit grounding device; the short circuit grounding device comprises a concave grounding seat, a steel claw is arranged at the end part of the concave grounding seat, the steel claw is arranged at the end part of the grounding seat through an elastic spring and a hinged piece, and the elastic spring enables the steel claw to keep a neutral position under the condition of no stress; and a grounding wire is arranged at the metal part of the grounding seat.
The technical principle of the scheme of the invention is as follows: the mode that adopts the manual work to carry out the short circuit ground connection operation in the past is changed, but adopts flexible mount and short circuit ground device to make up to realize short circuit ground connection's whole process, promptly: fix at wire tower tip through flexible mount, adjust telescopic position and make it aim at the electric wire, then fix short circuit earthing device detachable in telescopic sleeve, make short circuit earthing device finally can contact with the electric wire through telescopic sleeve's linear motion, break off the contact of short circuit earthing device and electric wire at last, and insulating part can be as required, sets up insulating material at the telescopic sleeve external source of manually operation's telescopic mount.
In the invention, as a further improvement, the telescopic sleeve comprises a main sleeve and a propelling sleeve, and the propelling sleeve is connected in the main sleeve in a sliding fit manner and can be stretched in the main sleeve; a concave hole is formed in the top of the propelling sleeve; the bottom of the short circuit grounding device is provided with a connecting rod, and the connecting rod is provided with an elastic bulge; the connecting rod and the propelling sleeve can be mutually matched and connected, and when the connecting rod and the propelling sleeve are completely connected, the concave hole and the protrusion are mutually matched and fastened. The concave hole and the protrusion are matched with each other, so that the short-circuit grounding device and the pushing sleeve are matched, and the short-circuit grounding device can move in the telescopic sleeve.
In the invention, as a further improvement, a separation sleeve is further arranged in the propelling sleeve, and the separation sleeve is connected with the propelling sleeve through threads; when shrinkage pool and arch matched each other the fastening, through the threaded connection who loosens separation sleeve and propelling sleeve, with separation sleeve jack-up, can press the search with the arch for shrinkage pool and arch separation. The separation sleeve sets up inside advancing the sleeve, and the position can threaded connection with advancing the sleeve near the bottom, and its tip position wall thickness is very thin, and when the separation sleeve separated with advancing the sleeve, the separation sleeve jack-up that makes progress can be so that to have elastic arch to retrieve in the connecting rod to make short circuit grounding device and telescope tube separate.
According to the invention, as a further improvement, the steel claws are arranged in two groups and are arranged oppositely, each group is provided with at least one steel claw, the middle position of each steel claw is connected with a turning half ring, the central position of each turning half ring is provided with a hinge column and a return spring, and when the turning half rings are not stressed, the turning half rings keep a neutral position as the steel claws; the turning semi-ring is connected with a pull rope, and when the pull rope pulls, the turning semi-ring rotates by taking the hinge column as a circle center and drives the steel claw to do arc motion by taking the hinge piece as the circle center. In the prior art, one pull rope is used, but in the invention, two pairs of steel claws are arranged, and the rotation of the turning semi-ring is controlled by the pull rope, so that the steel claws can realize the arc motion with a circle center.
In the invention, as a further improvement, the bottom of the concave grounding seat is provided with a balancing weight to ensure that the short circuit grounding device always keeps a positive position in a wire hanging state.
The specific installation method of the product is as follows: firstly, a telescopic fixing frame is adopted to be installed on a support part of a wire tower to be fixed, the telescopic fixing frame is connected with a main sleeve through a connecting piece, the through hole in the telescopic sleeve is aligned with a wire pole, the position of the sleeve is corrected, and finally, the main sleeve, a pushing sleeve and a separating sleeve are installed. The propelling sleeve can slide in the main sleeve, and the main sleeve is provided with a limiting device, so that the propelling sleeve cannot be separated from the main sleeve.
The outstanding substantive features and remarkable progress of the invention are as follows:
1. the invention has the advantages of overcoming the defect of manual wiring of the short-circuit grounding device in the prior art and canceling the handle end of the short-circuit grounding device. The condition that the wire end clamp automatically drops can not be generated because a plurality of wire end clamps are carried manually is reduced.
2. The invention has simple and convenient operation, and the operation of grounding circuits can be carried out only by mounting the telescopic fixing frame on each wire tower in advance and carrying the short-circuit grounding device for each time of short-circuit grounding maintenance.
3. The invention has simple structure and low manufacturing cost, changes the prior use mode and is convenient for wide popularization and application of the power system.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the product of the present invention;
FIG. 2 is a schematic view of the construction of the telescopic sleeve of the present invention;
FIG. 3 is a schematic diagram showing the deformation of the steel claw when the short-circuit grounding device is in contact with the wire;
FIG. 4 is a schematic view of the short-circuit grounding device of the present invention in a configuration in which contact with the electric wire is completed;
FIG. 5 is a schematic structural view of the short-circuit grounding device of the present invention when it is separated from the retractable fixing frame;
FIG. 6 is a schematic structural view of the telescopic bracket of the present invention when the short-circuit grounding device is not connected;
FIG. 7 is a schematic view of the construction of the propulsion sleeve of the present invention;
FIG. 8 is a schematic view of the construction of the machine frame of the present invention;
fig. 9 is a schematic view of the short-circuit grounding device according to the present invention, which is released from contact with the electric wire 16;
part names and serial numbers in the figure:
the device comprises a mechanical frame 1, a main sleeve 2, a propelling sleeve 3, a separating sleeve 4, a knob disc 5, a pull rope 6, a concave hole 7, a protrusion 8, a return spring 9, a hinge column 10, a hinge piece 11, a steel claw 12, a turning semi-ring 13, the turning semi-ring 13, a grounding seat 14 and a balancing weight 15; wires 16, wire towers 17;
the device comprises a telescopic rod 1.1, a steel frame 1.2, a rotary column 1.3, an adjusting and mounting rod 1.4 and a cross rod 1.5;
a telescopic fixing frame A and a short circuit grounding device B.
Detailed Description
The short-circuit grounding device of the present invention is described below with reference to the accompanying drawings and embodiments.
Example 1:
as shown in fig. 1-9, the short-circuit grounding mechanism of the present invention includes two parts, namely, a telescopic fixing frame a fixed on a wire tower 17, and a short-circuit grounding device B detachably connected with the telescopic fixing frame, wherein the short-circuit grounding device B is detachably connected with the telescopic fixing frame a through a connecting mechanism. The telescopic fixing frame A comprises a mechanical frame 1 movably and fixedly connected with the wire tower, the mechanical frame 1 comprises telescopic rods 1.1 respectively, the telescopic rods 1.1 are installed in a steel frame 1.2 and can be moved in a telescopic manner in the steel frame 1.2, a rotary column 1.3 is arranged at one end of the steel frame 1.2, a cross rod 1.4 is connected with the telescopic rods 1.1, and an adjusting installation rod 1.4 is arranged at the middle position of the rotary column 1.3;
the telescopic fixing frame A further comprises a telescopic sleeve, the telescopic sleeve is connected to the rotary column 1.3 through the adjusting mounting rod 1.4, and the position of the telescopic sleeve can be adjusted through adjusting the position relation between the rotary column 1.3 and the adjusting mounting rod 1.4. The telescopic sleeve includes main sleeve 2 and propulsion sleeve 3, and 3 sliding fit of propulsion sleeve connect in main sleeve 2 and can stretch out and draw back at main sleeve, and the propulsion sleeve top is equipped with shrinkage pool 7, and the inside separation sleeve 4 that still is equipped with of propulsion sleeve 3, separation sleeve 4 and propulsion sleeve 3 are connected through the screw thread, and separation sleeve 4 bottom is equipped with knob dish 5.
The short circuit grounding device B comprises a concave grounding seat 14, the end part 14 of the concave grounding seat is provided with a steel claw 12, the number of the steel claws 12 is 2, and each group of the two steel claws is arranged oppositely. The steel claw 12 is mounted at the end of the grounding seat 14 through an elastic spring and a hinge 11, and the elastic spring enables the steel claw 12 to keep a neutral position under the condition of no stress, namely a pressing state shown in fig. 1; the middle position of the steel claw 12 is connected with a turning half ring 13, one end of the turning half ring 13 is connected with the steel claw 12, the center position of the turning half ring 13 is provided with a hinge column 10 and a return spring 9 which keep a neutral position like the steel claw 12, the pull rope 6 is connected on the turning half ring 13, when the pull rope 6 is pulled downwards, the turning half ring 12 rotates by taking the hinge column 10 as a circle center and drives the steel claw 12 to do arc motion by taking the hinge piece 11 as the circle center, and after the pull rope 6 is loosened, the turning half ring 13 and the steel claw 12 are restored to the original state to the position shown in fig. 1. The bottom of the concave grounding seat 14 is also provided with a balancing weight 15, the balancing weight 15 can ensure that the balancing weight 15 is at the lower position when the steel claw 12 is hung on the electric wire 16, and the installation position of the grounding wire is not given in detail in the invention, because the grounding wire can be fixed at any position of the concave grounding seat 14 or any position of the metal capable of being electrified after being perforated.
The following are methods of installation and use of the apparatus of the present invention:
1. the machining 1 is installed. The machine frame 1 is first mounted on the wire tower 17, as shown in fig. 6; on the steel frame construction of steelframe 1.2 card income wire tower 17 earlier, the width distance of steelframe 1.2 can be according to wire tower 17 steel frame construction's standard design in advance, and its installation distance also can be according to telescopic sleeve maximum length design to guarantee that telescopic sleeve finally can drive short circuit earthing device B and can touch the electric wire, back adjustment horizontal pole 1.5, make the length of adjustment telescopic link 1.1 guarantee that whole machinery frame 1 card goes into the electricity
And the wire tower 17 is fixed and stable on a steel frame.
2. And installing a telescopic sleeve. Aim at the screw hole of 2 sides of main sleeve and twist soon horizontal pole 1.5 and twist closely, at this moment with the propulsion sleeve 3 of separation sleeve 4 in with main sleeve 2 again and twist closely, propulsion sleeve 3 can slide in main sleeve 2, adjust this moment through column spinner 1.3 and horizontal pole 1.5 for electric wire 16 is aimed at to the through-hole in the telescope tube, and it is fixed the completion through common mounting such as screw with column spinner 1.3 and horizontal pole 1.5 at last, and whole flexible mount A setting is accomplished this moment.
3. When the short circuit grounding device is needed to be grounded, the short circuit grounding device B is connected into the propelling sleeve 3, and the short circuit grounding device B is connected into the propelling sleeve 3 mainly through the matching of the elastic bulge 8 on the connecting rod at the bottom of the short circuit grounding device B and the concave hole on the propelling sleeve.
4. Then the pushing sleeve 3 is pushed to make the short circuit grounding device B move integrally, when the steel claw 12 contacts the electric wire 16, the short circuit grounding device B is deformed as shown in figure 3, and when the steel claw 12 is deformed, the electric wire 16 enters the closed space formed by the steel claw 12 and the grounding seat 14.
5. The threaded connection between the pushing sleeve 3 and the release sleeve 4 is then disconnected, controlling the upward movement of the release sleeve 4, allowing the thin wall on the release sleeve 4 to come into contact with the protrusion 8, which retracts into the connecting rod because of its elasticity. At this time, the separation sleeve 4 is pulled back, and the short-circuit grounding device B is completely separated from the telescopic sleeve.
6. At this time, the state of the short-circuiting earthing device B is as shown in fig. 5, at which time the worker can perform the maintenance. When the maintenance is completed, the pulling ropes 6 at the two ends of the steel claw 12 are pulled simultaneously, and at this time, the steel claw 12 starts to move upwards in an arc around the hinge post 10 by means of the pushing force on the wire 16 and the pulling force of the rope applied to the turning half ring 13, as shown in fig. 9, and finally, the short-circuit grounding device B can be detached from the wire 16. The entire operation is completed.
Example 2:
the difference from embodiment 1 is that, when the steel frame 1.2 is installed, it can be connected to the tower 17 of the electric wire tower in a welding manner, so as to ensure the stability of the whole equipment. In addition, the column spinner 1.3 and horizontal pole 1.5 in this application can adopt the form of screw thread with the external screw cap, and it can also fix at last under the condition of angle of adjustment, and after the fixed completion of the angle of telescopic sleeve of column spinner 1.3 and horizontal pole 1.5, can adopt the welded form to die the fixed position of column spinner 1.3 and horizontal pole 1.5.
Finally, it should be noted that: it should be understood that the above-mentioned embodiments are only examples for clearly illustrating the present invention, and are not to be construed as limiting the implementation. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. This list is not intended to be exhaustive or exhaustive of all embodiments. And obvious variations or modifications of the invention may be made without departing from the scope of the invention.
Claims (6)
1. The utility model provides a short circuit grounding mechanism, is including fixing the flexible mount on the wire tower and can dismantle the short circuit grounding device of being connected with flexible mount, its characterized in that:
the telescopic fixing frame comprises a mechanical frame movably and fixedly connected with the wire tower;
the telescopic fixing frame also comprises a telescopic sleeve which is adjustably connected to the mechanical frame;
the end part of the telescopic sleeve can be detachably connected with the short circuit grounding device;
the short circuit grounding device comprises a concave grounding seat, a steel claw is arranged at the end part of the concave grounding seat, the steel claw is arranged at the end part of the grounding seat through an elastic spring and a hinged piece, and the elastic spring enables the steel claw to keep a neutral position under the condition of no stress;
and a grounding wire is arranged at the metal part of the grounding seat.
2. The short-circuit grounding mechanism according to claim 1, wherein: the telescopic sleeve comprises a main sleeve and a propelling sleeve, and the propelling sleeve is connected in the main sleeve in a sliding fit manner and can be stretched in the main sleeve;
a concave hole is formed in the top of the propelling sleeve;
the bottom of the short circuit grounding device is provided with a connecting rod, and the connecting rod is provided with an elastic bulge;
the connecting rod and the propelling sleeve can be mutually matched and connected, and when the connecting rod and the propelling sleeve are completely connected, the concave hole and the protrusion are mutually matched and fastened.
3. The short-circuit grounding mechanism according to claim 2, wherein: a separation sleeve is further arranged inside the propelling sleeve, and the separation sleeve is connected with the propelling sleeve through threads;
when shrinkage pool and arch matched each other the fastening, through the threaded connection who loosens separation sleeve and propelling sleeve, with separation sleeve jack-up, can press the search with the arch for shrinkage pool and arch separation.
4. The short-circuit grounding mechanism according to claim 1, wherein: the turning semi-ring is characterized in that the steel claws are arranged in two groups and are arranged oppositely, each group is provided with at least one steel claw, the middle position of each steel claw is connected with a turning semi-ring, the central position of each turning semi-ring is provided with a hinge column and a return spring, and when the turning semi-ring is not stressed, the turning semi-ring keeps a neutral position as the steel claws; the turning semi-ring is connected with a pull rope, and when the pull rope pulls, the turning semi-ring rotates by taking the hinge column as a circle center and drives the steel claw to do arc motion by taking the hinge piece as the circle center.
5. The short-circuit grounding mechanism according to claim 1, wherein: the bottom of the concave grounding seat is provided with a balancing weight to ensure that the short circuit grounding device always keeps right position in a wire hanging state.
6. The luxury rental car park vehicle-searching system according to claim 1, wherein: the luxurious flashing light system is connected with the master control system, and the flashing of the luxurious flashing light system is controlled by the master control system; the luxurious flashing light system comprises a plurality of flashing lights and electrical components.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010696474.XA CN111834765B (en) | 2020-07-20 | 2020-07-20 | Short circuit grounding mechanism |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010696474.XA CN111834765B (en) | 2020-07-20 | 2020-07-20 | Short circuit grounding mechanism |
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| CN111834765A true CN111834765A (en) | 2020-10-27 |
| CN111834765B CN111834765B (en) | 2021-07-13 |
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| CN202010696474.XA Active CN111834765B (en) | 2020-07-20 | 2020-07-20 | Short circuit grounding mechanism |
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| CN208986215U (en) * | 2018-11-23 | 2019-06-14 | 国网河南省电力公司南阳供电公司 | A kind of earthing clamp |
| CN110098501A (en) * | 2018-12-06 | 2019-08-06 | 贵州电网有限责任公司 | A kind of semi-automatic rapid-assembling/disassembling grounding hook and its operating method |
| CN210142745U (en) * | 2019-09-16 | 2020-03-13 | 河北天创电气材料制造有限公司 | Anti-oxidation high-voltage grounding rod |
| CN111193120A (en) * | 2020-03-17 | 2020-05-22 | 刘啟宝 | Device for hanging detachable head of grounding wire to high-altitude cable |
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| CN111834765B (en) | 2021-07-13 |
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Effective date of registration: 20240401 Address after: 423000 dormitory in Sizhou Township, Guiyang County, Chenzhou City, Hunan Province Patentee after: Long Zhiguo Country or region after: China Address before: No. 235, 2nd Floor, 2 #, No. 29 Liuxin Avenue, Liunan District, Liuzhou City, Guangxi Zhuang Autonomous Region, 545005 Patentee before: Liuzhou Dashang Technology Development Co.,Ltd. Country or region before: China |