CN114597817A - Ultra-high voltage transmission line jumper climbing device and application method thereof - Google Patents
Ultra-high voltage transmission line jumper climbing device and application method thereof Download PDFInfo
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- CN114597817A CN114597817A CN202210253780.5A CN202210253780A CN114597817A CN 114597817 A CN114597817 A CN 114597817A CN 202210253780 A CN202210253780 A CN 202210253780A CN 114597817 A CN114597817 A CN 114597817A
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- clamp
- jumper
- climbing device
- climbing
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/02—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for overhead lines or cables
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C7/00—Component parts, supporting parts, or accessories
- E06C7/08—Special construction of longitudinal members, or rungs or other treads
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- Mechanical Engineering (AREA)
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Abstract
The invention discloses an extra-high voltage transmission line jumper climbing device and an application method thereof. The cross bar is telescopic, so that the locking devices at the two ends of the device can be locked on two jumper wires with different intervals, and the device has universality. After the locking device is buckled at the bottom of the jumper through the fixing clamp, the movable clamp is buckled with the movable clamp to lock the jumper through the automatic locking assembly, and an operator can operate the movable clamp with one hand, so that the movable clamp is buckled with the fixing frame to enable the locking device to quickly lock the jumper to prevent the jumper from sliding, and the operator can safely climb. In the actual operation of wide-angle wire jumper, through installation climbing device, can greatly reduced operation personnel physical demands, promote the operation security. The cross rod can be folded at the middle joint and then placed in a tool bag, so that the tool bag is convenient for operators to carry.
Description
Technical Field
The invention belongs to the field of live working tools of power transmission lines, and particularly relates to a jumper climbing device for an ultra-high voltage power transmission line and an application method thereof.
Background
The ultra-high voltage line has large transmission capacity and high reliability requirement and does not have the condition of temporary power failure. Once critical defects occur, emergency treatment by live working is required.
The extra-high voltage live working can ensure that the defects can be eliminated in time when the line has defects or even faults, ensure the reliable operation of the extra-high voltage transmission line and provide a solid energy guarantee for the development of the economy and the society.
In the live-line maintenance work of the ultra-high voltage transmission line, the condition that the jumper wire of the ultra-high voltage transmission line has defects (such as strand loosening, heating, bolt loss and the like) can be met. If the defect appears near jumper wire and wire handing-over position, because the jumper wire angle of dangling is bigger, the maintainer lacks the foot and steps on the impetus, need lean on self arm strength climbing, this is very big examination to operation personnel's arm strength. In case of a fault, the operator is very likely to slide off from the jumper, so that the operation is very dangerous, and the difficulty of the maintenance is very high.
In addition, when the tower is a tension tower, the distance between strings of the tension insulator string is large, the length of the string is long, and equipotential operators cannot enter an electric field by a method of 'two-short-three crossing' on the insulator string. At present usually, get into the electric field from the wire jumper department earlier, then climb to wire department through the wire jumper and carry out live working's mode, need the operation personnel to lean on self arm power to climb to wire department when nevertheless climbing the wire jumper, it is dangerous relatively.
And the current extra-high voltage live working stage lacks the corresponding auxiliary device who gets into the operation point position through climbing the wire jumper, and the tradition is climbed the line and is brought the great difficulty for eliminating lack of operation, greatly influences the efficiency and the security of operation.
Disclosure of Invention
The invention aims to provide an ultra-high voltage transmission line jumper climbing device and an application method thereof, wherein the ultra-high voltage transmission line jumper climbing device can guarantee operation safety and improve operation efficiency.
The invention provides an extra-high voltage transmission line jumper climbing device which comprises a telescopic cross rod and locking devices, wherein the locking devices are symmetrically connected with two ends of the telescopic cross rod and comprise a fixed clamp, a movable clamp hinged with the fixed clamp and an automatic locking assembly connected to the fixed clamp and used for limiting the movable clamp.
In an embodiment of the above device, one lateral side of the fixing clip is provided with an inward concave arc-shaped groove along the longitudinal direction, the other lateral side is provided with a locking assembly mounting groove along the longitudinal direction, and a longitudinal communication groove is arranged between the inner side of the inward concave arc-shaped groove and the locking assembly mounting groove.
In one embodiment of the above device, one side of the movable clamp is a hinged side, the other side of the movable clamp is a locking side, the movable clamp is hinged to the inner concave arc groove side of the fixed clamp through a pin shaft in a rotatable manner, and the outer wall of the locking side is provided with a ratchet.
In an embodiment of the above device, an elastic pull rod is hinged between the concave arc groove side of the fixing clamp and the hinge side of the movable clamp, the elastic pull rod comprises a pull rod and a pressure spring, the pull rod comprises a large-diameter section and a small-diameter section which can stretch out and draw back relative to the large-diameter section, two ends of the large-diameter section and two ends of the small diameter are respectively provided with a hinge joint, and two ends of the pressure spring are respectively fixed with the hinge joints.
In an embodiment of the above device, the hinged joints at the two ends of the pull rod are rotatably hinged with the fixed clamp and the movable clamp respectively through pin shafts.
In one embodiment of the above device, the locking side of the movable clamp is inserted into a communication channel on the stationary clamp.
In one embodiment of the above apparatus, the automatic locking assembly includes a stabilizer, a locking tongue, a radial compression spring, an axial compression spring, and a limiting seat; the stabilizing frame comprises a rectangular body and a moving shaft, wherein a longitudinal groove is formed in the rectangular body from one end of the rectangular body, and the moving shaft is fixed at the other end of the rectangular body; the lock tongue is arranged in a longitudinal groove of the rectangular body, the middle part of the lock tongue is rotatably hinged with the rectangular body through a pin shaft, and the outer wall of the inner end section of the lock tongue is provided with a ratchet matched with the movable clamp; the radial pressure spring is fixed between the outer wall of the inner end section of the lock tongue and the rectangular body, and a fixing column GDZ for mounting the radial pressure spring is respectively arranged on the outer wall of the inner end section of the lock tongue and the inner wall of a longitudinal groove of the rectangular body; the moving shaft is sleeved with an axial pressure spring and then penetrates through the limiting seat, the nut is screwed on, and two ends of the axial pressure spring are limited by the rectangular body and the limiting seat.
In an embodiment of the above apparatus, when the locking assembly is assembled with the fixing clip, the stabilizing frame is disposed in the longitudinal mounting groove of the fixing clip, the limiting seat is fixed to the bottom of the longitudinal groove of the rectangular body through a fastening member, and the movable shaft passes through the limiting seat and then is locked by the connecting nut.
In one embodiment of the above device, the cross bar comprises a middle joint and telescopic rods symmetrically connected with two ends of the middle joint; the connector is a rectangular body, insertion grooves along the central plane in the thickness direction are symmetrically formed in two ends in the length direction of the connector, long circular holes in the length direction are symmetrically formed in the inner end sections of two side walls of each insertion groove, and rectangular holes are formed in the outer end sections of the insertion grooves; the inner end of the telescopic rod is provided with a plug-in connector which is embedded with an elastic fixture block component; when the telescopic rod is assembled with the connector, the plug-in connector of the telescopic rod is inserted into the plug-in groove of the connector and then is hinged through the bolt penetrating through the long round hole, and the clamping block of the elastic clamping block assembly is popped into the rectangular hole of the connector.
The application method of the jumper climbing device disclosed by the embodiment comprises the following steps:
(1) the number of the jumper climbing devices required to be carried is determined by an operator according to the line characteristics;
(2) an operator carries the climbing device to the mother position of the jumper tube, and whether the climbing device is installed for assisting in climbing or not can be determined according to the inclination angle of the jumper in the climbing process;
(3) the proper length of the cross rod is adjusted according to the distance between the jumper wires;
(4) the movable clamp is opened to enable the fixed clamp to buckle the jumper from bottom to top, then the movable clamp is buckled with the fixed clamp, and the spring bolt of the locking assembly automatically locks the movable clamp to enable the locking device to be fixed on the jumper;
(5) the operator steps on the cross bar of the climbing device to continue climbing, and the climbing device is installed at intervals according to the step pitch until climbing to a lead;
(6) the operator exits from the lead side after completing the operation, firstly climbs down along the climbing device, sequentially removes the climbing device from the guide end to the pipe terminal, and finally exits from the electric field; when the climbing device is dismounted, the outer end section of the lock tongue is pulled, the inner end section of the lock tongue rotates outwards to loosen the movable clamp, and the climbing device is taken down after the movable clamp is opened.
The cross rod of the device is telescopic, so that the locking devices at two ends of the device can be locked on two jumper wires with different intervals, and the device has universality. After the locking device is buckled at the bottom of the jumper through the fixing clamp, the movable clamp is buckled with the movable clamp to lock the jumper through the automatic locking assembly, and an operator can operate the movable clamp with one hand, so that the movable clamp is buckled with the fixing frame to enable the locking device to quickly lock the jumper to prevent the jumper from sliding, and the operator can safely climb. In the actual operation of wide-angle wire jumper, through installation climbing device, can greatly reduced operation personnel physical demands, promote the operation security.
Drawings
Fig. 1 is a schematic diagram of an axis measurement structure according to an embodiment of the present invention.
Fig. 2 is a schematic view of an axial structure in another direction of the present embodiment.
Fig. 3 is an enlarged schematic view of a portion a in fig. 1.
Fig. 4 is an enlarged schematic structural view of the mid-coupling in fig. 3.
Fig. 5 is an enlarged connection view of the connection-peg of the telescopic rod of fig. 3.
Fig. 6 is an enlarged schematic view of the resilient block assembly of fig. 5.
Fig. 7 is an enlarged schematic view of a portion B in fig. 1.
Fig. 8 is an enlarged structural view of the fixing frame in fig. 7.
Fig. 9 is an enlarged schematic view of the portion C in fig. 2.
Fig. 10 is an enlarged schematic view of fig. 7 with the retaining clip removed.
Fig. 11 is an enlarged schematic view of the stabilizer of fig. 10.
Fig. 12 is an enlarged structural schematic view of the latch bolt in fig. 10.
Detailed Description
As shown in fig. 1 and fig. 2, the jumper climbing device for the ultra-high voltage transmission line disclosed in this embodiment includes a middle joint 1, telescopic rods 2 and a locking device 3, wherein the two ends of the middle joint 1 are symmetrically connected to the telescopic rods 2, and the outer ends of the two telescopic rods 2 are symmetrically connected to the locking device 3.
As can be seen from fig. 1 to 4, the middle joint 1 is a rectangular body, two ends of the length direction of the middle joint are symmetrically provided with inserting grooves along the central plane of the thickness direction, the inner end sections of the two side walls of each inserting groove are symmetrically provided with long circular holes along the length direction, and the outer end sections of the inserting grooves are provided with rectangular holes.
As can be seen from fig. 1 to 6, the telescopic rod 2 includes an internal thread sleeve 21 and a screw 22 sleeved inside and outside, an outer end of the internal thread sleeve 21 is connected with a plug 23, a front portion of the plug is a plug board, and a rear portion of the plug is embedded with an elastic clamping block assembly 24.
The elastic latch assembly 24 includes a rectangular box 241, a latch 242, and a compression spring, the compression spring is located in the inner cavity of the rectangular box 241, and two ends of the compression spring are symmetrically connected to the latch 242. When the compression spring is in the initial length, the boss of the fixture block 242 extends out of the rectangular box 241, and the front side of the boss of the fixture block is a rear inclined plane. The rear side of the rectangular box 241 is provided with an ear plate. In order to facilitate the installation of the rectangular box 241, the rectangular box is designed to be a structure with front and rear halves fastened together.
When the elastic clamping block component 241 is assembled with the plug 23, the rectangular box 241 is arranged in the mounting groove at the rear part of the plug and is hinged through a bolt.
When the telescopic rod 2 is assembled with the middle joint 1, the plug 23 is inserted into the plug groove and is hinged through a bolt penetrating through the front end of the plug and a long circular hole in the middle joint, and the fixture block 242 is bounced into rectangular holes in two sides of the plug groove and is guided through a rear inclined plane in the front side of the fixture block during insertion.
After the two telescopic rods and the middle joint are assembled into a cross rod, the telescopic rods can be locked with the device joint through the elastic clamping blocks embedded in the plug-in connectors and can also move along the length direction through the long round holes of the middle joint and the hinged bolts. When the device is used, the cross rod is locked by the elastic clamping block, so that the cross rod is a stable straight rod. When the folding telescopic rod is folded, the elastic clamping block is pressed into the rectangular box, then the telescopic rod is pulled outwards along the long round hole, and then the folding telescopic rod is rotated.
As can be seen in conjunction with fig. 1, 2 and 7 to 12:
the locking device 3 comprises a fixed clamp 31, a movable clamp 32, a stabilizing frame 33, a bolt 34, a limiting seat 35, a radial pressure spring, an axial pressure spring and an elastic pull rod.
The horizontal one side of fixation clamp 31 is provided with along fore-and-aft interior concave arc wall, and the opposite side is provided with vertical mounting groove, is provided with vertical intercommunication groove between the inboard of interior concave arc wall and the vertical groove.
One side of the movable clamp 32 is a hinged side, the other side is a locking side, the side of the inner concave arc groove hinged on the fixed clamp 31 is rotatably hinged through a bolt, and the outer wall of the locking side is provided with a ratchet. Rubber gaskets are adhered to the forehead inner walls of the fixed clamp and the movable clamp so as to increase the friction force between the fixed clamp and the movable clamp and the jumper wire.
The stabilizer 33 includes a rectangular body 331 and a moving shaft 332, the rectangular body 331 is provided with a longitudinal groove from one end, and the moving shaft 332 is fixed to the other end of the rectangular body.
The locking bolt 34 is arranged in a longitudinal groove of the rectangular body 331, the middle part of the locking bolt is rotatably hinged with the rectangular body 331 through a pin shaft, and the outer wall of the inner end section of the locking bolt 33 is provided with a ratchet matched with the movable clamp 32.
The radial pressure spring is fixed between the outer wall of the inner end section of the lock tongue 34 and the rectangular body 331, and fixing columns GDZ for mounting the radial pressure spring are respectively arranged on the outer wall of the inner end section of the lock tongue and the inner wall of the longitudinal mounting groove of the rectangular body 331.
The moving shaft 332 is sleeved with an axial pressure spring and then penetrates through the limiting seat 35, a nut is screwed on, and two ends of the axial pressure spring are limited by the rectangular body 331 and the limiting seat 35. After the nuts are screwed on, the stabilizer 33 is stably fixed in the longitudinal grooves of the fixing clip 31.
The elastic pull rod comprises a telescopic pull rod 36 and a pressure spring sleeved outside the telescopic pull rod, two ends of a large-diameter section and a small-diameter section of the pull rod 36 are hinged with the fixed clamp and the movable clamp through a hinge joint and a bolt respectively, as shown in fig. 9, the lower end of the pressure spring is fixed with the large-diameter section of the pull rod, the upper end of the pressure spring is fixed with an end face plate of the small-diameter section of the pull rod, and the pressure spring is not shown in the figure.
The assembly process of the locking device is as follows:
firstly assembling a stabilizing frame, a lock tongue and a radial pressure spring into an integral piece, ensuring that the lock tongue can rotate around a hinge joint, ensuring that the radial pressure spring is in an initial length, and extending the inner end section of the lock tongue out of a rectangular body;
placing the limiting seat at the bottom of the longitudinal groove on the fixing clamp and fixing the limiting seat through a fastening piece;
the hinged side of the movable clamp is hinged with the inner concave arc-shaped groove side of the fixed clamp through a bolt, and an elastic pull rod is arranged between the outer wall of the hinged side of the movable clamp and the fixed clamp. When the movable clamp is buckled with the fixed clamp, the length of a pressure spring of the elastic pull rod is the initial length; the movable clamp is installed and opened, and a pressure spring of the elastic pull rod is in a compressed energy storage state;
the integral part of the stabilizing frame, the lock tongue and the radial pressure spring is arranged in a longitudinal groove on the fixing clamp, the moving shaft penetrates through the limiting seat and then extends out of the fixing clamp, and the extending section is screwed with a nut to provide certain pre-tightening force for the axial pressure spring so as to ensure the stable installation of the stabilizing frame;
the movable clamp is buckled with the fixed clamp, and the inner end section of the lock tongue locks the locking side of the movable clamp;
the lock tongue is pulled to enable the inner end section of the lock tongue to release the locking side of the movable clamp, and the movable clamp is opened.
The cross rods of the device can be stretched, centered and folded, and can be stretched, so that the device can be suitable for mounting and locking jumpers with different intervals, and has universality. The cross bar is small in foldable size and convenient to carry by operators. When the fixed clamp and the movable clamp of the locking device buckle the jumper wire, the automatic locking assembly can quickly lock the movable clamp, so that the device is fixed on the jumper wire. When the operating personnel is buckled with the fixed frame, the locking side of the movable clamp only needs to be inserted into the longitudinal mounting groove on the fixed clamp by a single hand, and the spring bolt of the automatic assembly can lock the movable clamp under the action of the pressure spring. When the movable clamp is buckled, the movable clamp can automatically fall under the action of the pressure spring and can be buckled with the fixed clamp only by pushing the hinged side of the movable clamp. The whole installation and fixation operation of the locking device on the jumper wire is simple and quick.
When the device is carried in operation to climb the jumper, the required number of the climbing devices is determined by line parameters (the position with the overlarge inclination angle of the jumper), the number of jumper spacers and the stride of personnel (taking 600mm as a standard). When the climbing device is carried, the cross rod can be folded at the middle joint to be placed in the tool bag in a reduced size.
The operation personnel carry the climbing device to climb to the female pipe of wire jumper department, and the climbing in-process is in the supplementary climbing of the local mountable climbing device that the angle is great, the climbing difficulty.
When the climbing device is installed, the cross rods are adjusted to be proper in length according to the distance between the jumper wires, the movable frame is opened, then the fixed frame of the locking device is buckled with the bottom of the jumper wires from bottom to bottom, the hinged side of the movable clamp is pushed, the movable clamp automatically falls down under the action of the elastic pull rod pressure spring to be buckled with the fixed clamp, and when the movable clamp is buckled, the inner end section of the lock tongue of the automatic locking assembly is meshed with the locking side of the movable clamp through the ratchet under the action of the radial pressure spring to be locked.
After the first climbing device of installation, the horizontal pole is stepped on to the operation personnel, and the supplementary climbing of a climbing stick of every 600mm installation is simultaneously according to the stride until climbing to wire.
When the operation personnel withdrawed from the wire side, climb down along climbing device earlier, demolish the climbing device in proper order to the pipe box end by the wire end again, when demolising, also can put into the instrument bag after the fifty percent discount of the well joint department of device, withdraw from the electric field at last.
Claims (10)
1. The utility model provides an extra-high voltage transmission line jumper climbing device which characterized in that: the locking device comprises a telescopic cross rod and locking devices, wherein the two ends of the telescopic cross rod are symmetrically connected with each other, each locking device comprises a fixed clamp and a movable clamp hinged with the fixed clamp, and an automatic locking assembly, which is connected to the fixed clamp and enables the movable clamp to limit.
2. The extra-high voltage transmission line jumper climbing device of claim 1, characterized in that: the horizontal one side of fixation clamp is provided with along fore-and-aft indent arc wall, and horizontal opposite side is provided with along fore-and-aft locking Assembly mounting groove, is provided with vertical intercommunication groove between the inboard of indent arc wall and the locking Assembly mounting groove.
3. The extra-high voltage transmission line jumper climbing device of claim 2, characterized in that: one side of the movable wire clamp is a hinged side, the other side of the movable wire clamp is a locking side, the movable wire clamp is hinged with the side of the inner concave arc-shaped groove in the fixed clamp in a rotatable mode through a pin shaft, and ratchets are arranged on the outer wall of the locking side.
4. The extra-high voltage transmission line jumper climbing device of claim 3, characterized in that: the utility model discloses a flexible cable clamp, including the movable clamp, the fixed clamp is fixed on the movable clamp, the fixed clamp's indent arc groove side with it has the elasticity pull rod to articulate between the articulated side of movable clamp, and the elasticity pull rod includes pull rod and pressure spring, and the pull rod includes big footpath section and the flexible path section of big footpath section relatively, and the both ends of big footpath section and path are provided with the articulated joint respectively, and the both ends of pressure spring are fixed with the articulated joint respectively.
5. The extra-high voltage transmission line jumper climbing device of claim 3, characterized in that: the hinged joints at the two ends of the pull rod are rotatably hinged with the fixed clamp and the movable wire clamp through pin shafts respectively.
6. The ultra-high voltage transmission line jumper climbing device of claim 4, characterized in that: the locking side of the movable wire clamp is inserted into the communicating groove on the fixed clamp.
7. The extra-high voltage transmission line jumper climbing device of claim 3, characterized in that:
the automatic locking assembly comprises a stabilizing frame, a lock tongue, a radial pressure spring, an axial pressure spring and a limiting seat;
the stabilizing frame comprises a rectangular body and a moving shaft, wherein a longitudinal groove is formed in the rectangular body from one end of the rectangular body, and the moving shaft is fixed to the other end of the rectangular body;
the lock tongue is arranged in a longitudinal groove of the rectangular body, the middle part of the lock tongue is rotatably hinged with the rectangular body through a pin shaft, and the outer wall of the inner end section of the lock tongue is provided with a ratchet matched with the movable clamp;
the radial pressure spring is fixed between the outer wall of the inner end section of the lock tongue and the rectangular body, and a fixing column GDZ for mounting the radial pressure spring is respectively arranged on the outer wall of the inner end section of the lock tongue and the inner wall of a longitudinal groove of the rectangular body;
the moving shaft is sleeved with an axial pressure spring and then penetrates through the limiting seat, the nut is screwed on, and two ends of the axial pressure spring are limited by the rectangular body and the limiting seat.
8. The extra-high voltage transmission line jumper climbing device of claim 7, characterized in that: when the locking assembly is assembled with the fixing clamp, the stabilizing frame is arranged in a longitudinal installation groove on the fixing clamp, the limiting seat is fixed at the bottom of the longitudinal groove on the rectangular body through a fastening piece, and the movable shaft penetrates through the limiting seat and then is locked by a connecting nut.
9. The extra-high voltage transmission line jumper climbing device of claim 1, characterized in that: the cross rod comprises a middle joint and telescopic rods symmetrically connected with the two ends of the middle joint; the connector is a rectangular body, inserting grooves along the central plane of the thickness direction are symmetrically formed in the two ends of the connector in the length direction, long round holes in the length direction are symmetrically formed in the inner end sections of the two side walls of each inserting groove, and rectangular holes are formed in the outer end sections of the two side walls of each inserting groove; the inner end of the telescopic rod is provided with a plug-in connector which is embedded with an elastic fixture block component; when the telescopic rod is assembled with the connector, the plug-in connector of the telescopic rod is inserted into the plug-in groove of the connector and then is hinged through the bolt penetrating through the long round hole, and the clamping block of the elastic clamping block assembly is popped into the rectangular hole of the connector.
10. The method for applying the jumper climbing device according to claim 1, comprising the steps of:
(1) the number of the jumper climbing devices required to be carried is determined by an operator according to the line characteristics;
(2) an operator carries the climbing device to the mother position of the jumper tube, and whether the climbing device is installed for assisting in climbing or not can be determined according to the inclination angle of the jumper in the climbing process;
(3) the proper length of the cross rod is adjusted according to the distance between the jumper wires;
(4) the movable clamp is opened to enable the fixed clamp to buckle the jumper from bottom to top, then the movable clamp is buckled with the fixed clamp, and the spring bolt of the locking assembly automatically locks the movable clamp to enable the locking device to be fixed on the jumper;
(5) the operator steps on the cross bar of the climbing device to continue climbing, and the climbing device is installed at intervals according to the step pitch until climbing to a lead;
(6) the operating personnel quits from the wire side after completing the operation, firstly climbs down along the climbing device, sequentially removes the climbing device from the guide end to the pipe header end, and finally quits the electric field; when the climbing device is dismantled, the outer end section of the lock tongue is pulled, the inner end section of the lock tongue is rotated outwards to loosen the movable clamp, and the climbing device is taken down after the movable clamp is opened.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210253780.5A CN114597817B (en) | 2022-03-15 | 2022-03-15 | Jumper climbing device for extra-high voltage transmission line and application method of jumper climbing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210253780.5A CN114597817B (en) | 2022-03-15 | 2022-03-15 | Jumper climbing device for extra-high voltage transmission line and application method of jumper climbing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114597817A true CN114597817A (en) | 2022-06-07 |
| CN114597817B CN114597817B (en) | 2023-08-15 |
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|---|---|---|---|
| CN202210253780.5A Active CN114597817B (en) | 2022-03-15 | 2022-03-15 | Jumper climbing device for extra-high voltage transmission line and application method of jumper climbing device |
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| CN (1) | CN114597817B (en) |
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