CN115799864A - Power-generating car fastener device that is incorporated into power networks - Google Patents
Power-generating car fastener device that is incorporated into power networks Download PDFInfo
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- CN115799864A CN115799864A CN202211623963.8A CN202211623963A CN115799864A CN 115799864 A CN115799864 A CN 115799864A CN 202211623963 A CN202211623963 A CN 202211623963A CN 115799864 A CN115799864 A CN 115799864A
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- 230000007246 mechanism Effects 0.000 claims abstract description 52
- 230000005540 biological transmission Effects 0.000 claims abstract description 48
- 230000000670 limiting effect Effects 0.000 claims abstract description 14
- 238000010248 power generation Methods 0.000 claims description 12
- 239000012212 insulator Substances 0.000 claims description 8
- 238000004891 communication Methods 0.000 claims description 2
- 238000002679 ablation Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 4
- 230000008569 process Effects 0.000 abstract description 4
- 230000009471 action Effects 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 2
- 235000011613 Pinus brutia Nutrition 0.000 description 2
- 241000018646 Pinus brutia Species 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
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Abstract
The invention discloses a grid-connected wire clamp device of a generator car, which comprises a clamping head, a gate switch, a doubling cable, a transmission mechanism and an insulating rod, wherein the clamping head is connected with one end of the gate switch, the doubling cable is connected with the other end of the gate switch, the gate switch is used for disconnecting or communicating the clamping head and the doubling cable, the gate switch comprises a first contact, a second contact, a knife switch, a rotating shaft, a one-way transmission mechanism and a torsional spring, the first contact is connected with the clamping head, the second contact is rotatably connected with the knife switch, the rotating shaft penetrates through the second contact and the knife switch, the rotating shaft is provided with two one-way transmission mechanisms, the two one-way transmission mechanisms are respectively provided with the torsional spring, the knife switch is driven to rotate by different one-way transmission mechanisms and torsional springs when the rotating shaft rotates forwards and backwards, the guide rod is provided with an elastic rod, the elastic rod is provided with a limiting clamping protrusion, and the knife switch is driven to pass through the clamping protrusion to be in contact with or separated from the first contact when the elasticity of the torsional spring is greater than a preset value. The invention has the advantages of rapid movement of the knife switch in the switching process, reduced ablation of the contact and convenient operation.
Description
Technical Field
The invention relates to the technical field of grid connection, in particular to a grid connection wire clamp device of a power generation vehicle.
Background
Along with the construction of self-trade harbors in Hainan province, the power failure time index of a user is lower and lower, and in order to avoid social influence brought by power failure, 10kV line power generation operation is more and more. However, before the generator car is connected to the line, the 10kV line and the generator car are connected through live working, and in order to improve the connection efficiency, in the prior art, a chuck mechanism is arranged on an insulating rod and connected with a connecting line, and the chuck mechanism is connected with a grid-connected connecting part through the insulating rod to realize grid connection. However, the chuck mechanism is slowly contacted with the grid-connected connecting part in the clamping process, the resistance value is large when the chuck mechanism is not tightly contacted, flashover is easy to occur to ablate the contact part, and the connecting part is damaged.
Disclosure of Invention
Aiming at the prior art, the invention provides a grid-connected wire clamp device of a power generation vehicle, wherein a switch blade moves rapidly in the switching process, and the ablation of a contact can be reduced; and the insulating rod that the tight and unclamping of operation centre gripping head was pressed from both sides also can operate the gate closure simultaneously and unclamp convenient operation.
The technical scheme of the invention is realized as follows:
the utility model provides a generator car fastener device that is incorporated into power networks, includes holding head, gate switch, doubling cable, drive mechanism and insulator spindle, the holding head is connected with gate switch's one end, the doubling cable is connected with gate switch's the other end, gate switch is used for the disconnection or feeds through holding head and doubling cable, the holding head includes chuck, lower chuck, guide bar, slide bar and screw rod, it fixes to go up the chuck the top of guide bar, the slide bar with guide bar sliding connection, lower chuck with slide bar fixed connection, the slide bar with the screw rod rotates to be connected, the screw rod with guide bar threaded connection, the screw rod with insulator spindle fixed connection, gate switch includes first contact, second contact, pivot, one-way transmission mechanism and torsional spring, first contact with the connecting of positive and negative rotation, the second contact rotates and is connected with the plug-type broach, the pivot is passed the second contact with the plug-type broach, be equipped with in the pivot be equipped with two one-way transmission mechanism, two one-way transmission mechanism are equipped with the torsional spring rotation drive plug-type switch mechanism and the plug-type switch-type pole drives the plug-type switch-type pole through the elastic force and the preset value, the plug-type switch is equipped with the elastic drive mechanism, the plug-type switch is greater than the elastic force and drives the elastic force.
Furthermore, the transmission mechanism comprises a first bevel gear, a second bevel gear, a third bevel gear, fourth bevel gears, fifth bevel gears and a transmission shaft, the first bevel gear is connected with the screw rod, the second bevel gear is rotatably connected to the guide rod, the third bevel gear is arranged on the second bevel gear, the fourth bevel gears are respectively arranged at two ends of the transmission shaft, the fifth bevel gear is arranged on the rotating shaft, the first bevel gear is meshed with the second bevel gear, and the two fourth bevel gears are respectively meshed with the third bevel gear and the fifth bevel gear.
Furthermore, the one-way transmission mechanism is a one-way bearing, and the rotating shaft drives one-way bearing to rotate when rotating positively and drives the other one-way bearing to rotate when rotating negatively.
Further, the plug-in strip is equipped with the arc wall, the arc wall with spacing card protruding mutually supporting.
Furthermore, be equipped with first mount pad on the guide bar, the pivot with first mount pad rotates to be connected.
Furthermore, the guide rod is provided with a second mounting seat, and the transmission shaft is rotatably connected with the second mounting seat.
Furthermore, the lower end of the screw rod is provided with a sliding groove, the first bevel gear is provided with a sliding block which slides along the sliding groove, and the screw rod is provided with a spring which pushes the first bevel gear to move upwards.
Furthermore, the lower end of the screw rod is square, and the top of the insulating rod is movably inserted into the screw rod.
The invention has the beneficial effects that: make the quick direction to closing a floodgate of plug-in strip remove under the effect of elasticity, the gate is closed fast, shortens closing time, and the area of contact of the closed initial stage of plug-in strip is little, and the resistance value of contact leads to the contact point ablation greatly easily, has shortened closing time through quick closing a floodgate, improves the protective properties to plug-in strip and first contact. When the gate switch is disconnected and the clamping head is loosened, the knife switch overcomes the obstruction of the limit clamp after the accumulated force reaches the preset value to drive the knife switch to rotate, so that the gate is quickly disconnected, the time for disconnecting the gate is shortened, the contact area of the final stage of disconnecting the gate is small, the resistance value of contact is large, contact points are easy to ablate, and the switching-off time shortened by the quick disconnecting knife switch is used for improving the protective performance of the knife switch and the first contact head. The gate and the clamping head are operated through the same insulating rod, so that the worker is far away from the power transmission line through the operation of the insulating rod, and the safety is improved. The operation actions of clamping and closing are consistent, and the operation of loosening and opening are also consistent, so that the operation is more convenient. In the operation of closing a floodgate and switching off, need not promote the gate hard, operate through the mode of rotatory insulator spindle, the centre gripping of holding head is more stable, avoids external force to strike and leads to the holding head pine to take off.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the description below are only preferred embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive labor.
FIG. 1 is a perspective view of a power generation vehicle grid connection clamp device of the present invention;
FIG. 2 is a structural diagram of a connecting part of a knife switch of the grid-connected wire clamp device of the generator car;
FIG. 3 is a cross-sectional view of a grid-connected wire clamp device of a generator car of the present invention;
in the figure, 1 a clamping head, 2 a gate switch, 3 a parallel cable, 4 transmission mechanisms, 5 insulating rods, 6 upper clamping heads, 7 lower clamping heads, 8 guide rods, 9 sliding rods, 10 screw rods, 11 first contacts, 12 second contacts, 13 knife switches, 14 rotating shafts, 15 one-way transmission mechanisms, 16 torsion springs, 17 elastic rods, 18 limiting clamping protrusions, 19 first bevel gears, 20 second bevel gears, 21 third bevel gears, 22 fourth bevel gears, 23 fifth bevel gears, 24 transmission shafts, 25 arc-shaped grooves, 26 first installation seats, 27 second installation seats, 28 sliding grooves and 29 springs.
Detailed Description
For a better understanding of the technical content of the present invention, the following detailed description is provided in conjunction with the accompanying drawings for further explanation of the present invention.
Referring to fig. 1-3, the grid-connected wire clamp device of the power generation vehicle comprises a clamping head 1, a gate switch 2, a parallel cable 3, a transmission mechanism 4 and an insulating rod 5, the clamping head 1 is connected with one end of the gate switch 2, the doubling cable 3 is connected with the other end of the gate switch 2, the gate switch 2 is used for disconnecting or connecting the clamping head 1 and the parallel cable 3, the clamping head 1 comprises an upper clamping head 6, a lower clamping head 7, a guide rod 8, a sliding rod 9 and a screw rod 10, the upper clamping head 6 is fixed at the top of the guide rod 8, the sliding rod 9 is connected with the guide rod 8 in a sliding way, the lower chuck 7 is fixedly connected with the sliding rod 9, the sliding rod 9 is rotationally connected with the screw 10, the screw rod 10 is in threaded connection with the guide rod 8, the screw rod 10 is fixedly connected with the insulating rod 5, the gate switch 2 comprises a first contact 11, a second contact 12, a knife switch 13, a rotating shaft 14, a one-way transmission mechanism 15 and a torsion spring 16, the first contact 11 is connected with the clamping head 1, the second contact 12 is rotatably connected with the knife switch 13, the rotating shaft 14 penetrates through the second contact 12 and the switch blade 13, two one-way transmission mechanisms 15 are arranged on the rotating shaft 14, torsion springs 16 are respectively arranged on the two one-way transmission mechanisms 15, when the rotating shaft 14 rotates forward and backward, the switch blade 13 is driven to rotate by the different one-way transmission mechanisms 15 and the torsion springs 16, the guide rod 8 is provided with an elastic rod 17, the elastic rod 17 is provided with a limiting clamping protrusion 18, when the elasticity of the torsion spring 16 is larger than a preset value, the switch blade 13 is driven to cross the clamping protrusion to contact with or separate from the first contact 11, and the screw rod 10 drives the rotating shaft 14 to rotate positively and negatively through the transmission mechanism 4.
The guide rod 8 is made of an insulating material, or one side of the guide rod 8, which is connected with the clamping head 1, is made of an insulating material. The lower end of the doubling cable 3 is connected with the output end of the power generation car, and the upper end of the doubling cable 3 is connected with the gate switch 2. The sliding rod 9 is connected with the guide rod 8 in a sliding mode, the lower chuck 7 is fixedly connected with the sliding rod 9, the sliding rod 9 is connected with the screw rod 10 in a rotating mode, the upper end of the insulating rod 5 is connected with the screw rod 10, the screw rod 10 is connected with the guide rod 8 in a threaded mode, and the screw rod 10 is driven to rotate when the insulating rod 5 is rotated. The upper chuck 6 hooks a grid-connected connector, the insulating rod 5 is rotated to drive the screw rod 10 to rotate, and therefore the guide rod 8 and the lower chuck 7 are pushed upwards, and the grid-connected connector is clamped by the lower chuck 7 and the upper chuck 6. The first contact 11 is connected to the gripping head 1, the first contact 11 being in communication with the gripping head 1. The second contact 12 is rotatably connected with the switch blade 13, the grid-connected cable is connected with the second contact 12 or the switch blade 13, and the grid-connected cable, the second contact 12 and the switch blade 13 are communicated with each other. In the process that the screw rod 10 rotates to enable the clamping head 1 to be clamped tightly, the screw rod 10 also drives the rotating shaft 14 to rotate through the transmission mechanism 4, the rotating shaft 14 rotates forwards to drive the first one-way transmission mechanism 15 to rotate, the first one-way transmission mechanism 15 drives the first one the torsion spring 16 rotates, the first one the two ends of the torsion spring 16 are respectively connected with the switch blade 13 and the first one the one-way transmission mechanism 15, and therefore the switch blade 13 is driven to rotate. When the rotating shaft 14 rotates reversely, the second one-way transmission mechanism 15 is driven to rotate, the second one-way transmission mechanism 15 drives the second torsion spring 16 to rotate, and two ends of the second torsion spring 16 are connected with the knife switch 13 and the second one-way transmission mechanism 15, so that the gate is driven to rotate.
When the screw 10 moves upwards, the rotating direction of the rotating shaft 14 is driven to be positive rotation, when the rotating shaft 14 rotates positively, one of the one-way transmission mechanisms 15 is driven to rotate, the one-way transmission mechanism 15 drives the torsion spring 16 to rotate to accumulate force, the torsion spring 29 firstly drives the switch blade 13 to rotate towards the closing direction in the force accumulation process until the switch blade 13 is in contact with the limiting clamping protrusion 18 on the elastic rod 17, the limiting clamping protrusion 18 blocks the switch blade 13 to rotate, the one-way transmission rod mechanism continuously rotates under the driving of the rotating shaft 14, so that the torsion spring 16 continuously accumulates force, when the accumulated force reaches a preset value, the switch blade 13 pushes the elastic rod 17 to deform, the limiting effect of the limiting clamping protrusion 18 is overcome, at the moment, the elastic potential energy of the torsion spring 16 is released, the switch blade 13 rapidly moves towards the closing direction under the action of the elastic force, the gate is rapidly closed, the closing time is shortened, the contact area of the switch blade 13 at the initial closing stage is small, the contact resistance value is large, the contact point ablation is easily caused, the rapid closing time is shortened, and the protection performance on the switch blade 13 and the first contact head is improved.
When the gate switch 2 is disconnected and the clamping head 1 is loosened, the insulating rod 5 rotates reversely, the insulating rod 5 drives the screw rod 10 to rotate, the screw rod 10 drives the rotating shaft 14 to rotate reversely through the transmission mechanism 4, the rotating shaft 14 drives the other one-way transmission mechanism 15 to rotate, and the other one-way transmission mechanism 15 stores force, after the stored force reaches a preset value, the knife switch 13 overcomes the obstruction of the limiting clamping protrusion 18 to drive the knife switch 13 to rotate, so that the gate is disconnected quickly, the time for disconnecting the gate is shortened, the contact area of the final stage of disconnecting the gate is small, the contact resistance value of contact is large, contact ablation is easy to cause, the switching-off time shortened by the quick switching-off knife switch 13 is shortened, and the protective performance of the knife switch 13 and the first contact head is improved.
Gate and holding head 1 are through same insulator spindle 5 operations, make the staff keep away from the power transmission line through insulator spindle 5 operations, have improved the security. The operation actions of clamping and switching on are continuous, and the operation of loosening and switching off are also continuous, so that the operation is more convenient. In the operation of closing a floodgate and switching off, need not promote the gate hard, operate through the mode of rotatory insulator spindle 5, the centre gripping of clamping head 1 is more stable, avoids external force to strike and leads to the clamping head 1 pine to take off.
Optionally, the guide bar 8 is an elastic telescopic bar, the telescopic elastic telescopic bar comprises a telescopic bar and a spring 29, the spring 29 is arranged in the telescopic bar, the telescopic spring 29 is used for pushing the telescopic bar to extend, and the telescopic bar is shortened by overcoming the force of the spring 29 when the lower chuck 7 is clamped tightly.
Specifically, the transmission mechanism 4 includes a first bevel gear 19, a second bevel gear 20, a third bevel gear 21, a fourth bevel gear 22, a fifth bevel gear 23, and a transmission shaft 24, the first bevel gear 19 is connected to the screw 10, the second bevel gear 20 is rotatably connected to the guide rod 8, the second bevel gear 20 is provided with the third bevel gear 21, two ends of the transmission shaft 24 are respectively provided with the fourth bevel gear 22, the rotating shaft 14 is provided with the fifth bevel gear 23, the first bevel gear 19 is engaged with the second bevel gear 20, and the two fourth bevel gears 22 are respectively engaged with the third bevel gear 21 and the fifth bevel gear 23. When the screw 10 moves upward to a certain distance, the first bevel gear 19 on the screw 10 is engaged with the second bevel gear 20, and the screw 10 rotates to drive the second bevel gear 20 to rotate, so as to drive the fifth bevel gear 23 to rotate through the third bevel gear 21, the fourth bevel gear 22 and the transmission shaft 24. The fifth bevel gear 23 is connected to the rotating shaft 14, thereby rotating the rotating shaft 14. The invention can drive the rotating shaft 14 to rotate only after the clamping head 1 approaches the clamping state, and reduces the rotating stroke when the rotating shaft 14 is driven to rotate to realize switching on and switching off.
Specifically, the one-way transmission mechanism 15 is a one-way bearing, and the rotating shaft 14 drives one-way bearing to rotate when rotating forward and drives the other one-way bearing to rotate when rotating backward. When the rotating shaft 14 rotates forwards, the first one-way bearing is driven to rotate, and the second one-way bearing is not driven to rotate. When the rotating shaft 14 rotates reversely, the second one-way bearing is driven to rotate, and the first one-way bearing is not driven to rotate. The angle of the first torsion spring 16 driven by the rotating shaft 14 when the driving switch blade 13 is closed is different from the angle of the second torsion spring 16 driven by the rotating shaft 14 when the driving switch blade 13 is opened, so that the torsion springs 16 with different stiffness coefficients can be arranged, the clamping head 1 is clamped and then switched on, and the clamping head 1 is released after the gate is released.
Specifically, the knife switch 13 is provided with an arc-shaped groove 25, and the arc-shaped groove 25 is matched with the limiting clamping protrusion 18. When the switch is opened and closed, the limiting clamping convex 18 slides in the arc-shaped groove 25, and the limiting effect of the limiting clamping convex 18 on the switch blade 13 is stable.
Specifically, a first mounting seat 26 is arranged on the guide rod 8, and the rotating shaft 14 is rotatably connected with the first mounting seat 26. The mounting stability of the rotary shaft 14 is improved.
Specifically, the guide rod 8 is provided with a second mounting seat 27, and the transmission shaft 24 is rotatably connected with the second mounting seat 27. The mounting stability of the propeller shaft 24 is improved.
Specifically, the lower end of the screw 10 is provided with a sliding groove 28, the first bevel gear 19 is provided with a sliding block sliding along the sliding groove 28, and the screw 10 is provided with a spring 29 pushing the first bevel gear 19 to move upwards. The first bevel gear 19 has a moving space in the axial direction of the screw 10, so that the first bevel gear 19 is engaged with the third bevel gear 21.
Specifically, the lower end of the screw rod 10 is square, and the top of the insulating rod 5 is movably inserted into the screw rod 10. The insulating rod 5 is inserted at the lower end of the screw rod 10, the screw rod 10 is driven to rotate when the insulating rod 5 is rotated, and the insulating rod 5 can be separated from the screw rod 10 after the clamping head 1 is clamped.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (8)
1. The utility model provides a generator car clamping device that is incorporated into power networks, a serial communication port, including holding head, gate switch, doubling cable, drive mechanism and insulator spindle, the holding head is connected with the one end of gate switch, the doubling cable is connected with the other end of gate switch, the gate switch is used for disconnection or intercommunication holding head and doubling cable, the holding head includes chuck, lower chuck, guide bar, slide bar and screw rod, it fixes to go up the chuck the top of guide bar, the slide bar with guide bar sliding connection, lower chuck with slide bar fixed connection, the slide bar with the screw rod rotates to be connected, the screw rod with guide bar threaded connection, the screw rod with insulator spindle fixed connection, gate switch includes first contact, second contact, plug-in strip, pivot, one-way drive mechanism and torsional spring, first contact with the holding head is connected with the plug-in is rotated, the pivot is passed the second contact with the plug-in strip, be equipped with in the pivot one-way drive mechanism, two one-way drive mechanism is equipped with the positive and the torsional spring is equipped with the protruding contact of torsional spring drives the plug-in contact mechanism, the pivot is equipped with the protruding contact of torsional spring drives the plug-in contact mechanism and the elastic force drives the plug-in contact mechanism, the reverse rotation of torsional spring and the plug-in the rotation of torsional spring is equipped with the elastic contact mechanism, the plug-in contact mechanism, the elastic contact mechanism drives the plug-strip drives the plug-in the reverse rotation.
2. A power-generating car grid-connected wire clamp device as claimed in claim 1, wherein said transmission mechanism comprises a first bevel gear, a second bevel gear, a third bevel gear, a fourth bevel gear, a fifth bevel gear and a transmission shaft, said first bevel gear is connected with said screw, said second bevel gear is rotatably connected with a guide bar, said second bevel gear is provided with a third bevel gear, said transmission shaft is provided with said fourth bevel gear at both ends thereof, said rotation shaft is provided with said fifth bevel gear, said first bevel gear is engaged with said second bevel gear, and two of said fourth bevel gears are engaged with said third bevel gear and said fifth bevel gear.
3. A power generation vehicle grid-connected wire clamp device as claimed in claim 1, wherein the one-way transmission mechanism is a one-way bearing, and the rotating shaft drives one of the one-way bearings to rotate when rotating in the forward direction and drives the other one of the one-way bearings to rotate when rotating in the reverse direction.
4. A power generation vehicle grid-connected wire clamp device according to claim 1, wherein the switch blade is provided with an arc-shaped groove, and the arc-shaped groove is matched with the limiting clamping protrusion.
5. A grid-connected wire clamp device for a power generation vehicle as claimed in claim 1, wherein the guide rod is provided with a first mounting seat, and the rotating shaft is rotatably connected with the first mounting seat.
6. A generator car grid-connection wire clamp device according to claim 1, characterized in that the guide bar is provided with a second mounting seat, and the transmission shaft is rotatably connected with the second mounting seat.
7. A grid-connected wire clamp device for a power generation vehicle as claimed in claim 1, wherein the lower end of the screw rod is provided with a sliding groove, the first bevel gear is provided with a sliding block sliding along the sliding groove, and the screw rod is provided with a spring pushing the first bevel gear to move upwards.
8. A power generation vehicle grid connection wire clamp device according to claim 1, wherein the lower end of the screw rod is square, and the top of the insulating rod is movably inserted into the screw rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211623963.8A CN115799864B (en) | 2022-12-15 | 2022-12-15 | Grid-connected wire clamp device of power generation vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211623963.8A CN115799864B (en) | 2022-12-15 | 2022-12-15 | Grid-connected wire clamp device of power generation vehicle |
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| Publication Number | Publication Date |
|---|---|
| CN115799864A true CN115799864A (en) | 2023-03-14 |
| CN115799864B CN115799864B (en) | 2023-11-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202211623963.8A Active CN115799864B (en) | 2022-12-15 | 2022-12-15 | Grid-connected wire clamp device of power generation vehicle |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001294074A (en) * | 2000-02-10 | 2001-10-23 | Shin Meiwa Ind Co Ltd | Rear gate door opening and closing device |
| JP2005261109A (en) * | 2004-03-12 | 2005-09-22 | Chugoku Electric Power Co Inc:The | Holder |
| CN203983848U (en) * | 2014-07-04 | 2014-12-03 | 国家电网公司 | For changing the device of conductor spacer in UHV transmission line |
| CN107887836A (en) * | 2017-10-23 | 2018-04-06 | 国网辽宁省电力有限公司本溪供电公司 | Tangent tower overhead-groundwire lifter and its aerial earth wire method for improving, power construction implementation |
| CN114893368A (en) * | 2022-05-05 | 2022-08-12 | 王慧 | Voice warning system for locomotive |
| CN115384387A (en) * | 2022-10-28 | 2022-11-25 | 国网浙江慈溪市供电有限公司 | Low-voltage uninterrupted operation method and comprehensive maintenance vehicle |
-
2022
- 2022-12-15 CN CN202211623963.8A patent/CN115799864B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001294074A (en) * | 2000-02-10 | 2001-10-23 | Shin Meiwa Ind Co Ltd | Rear gate door opening and closing device |
| JP2005261109A (en) * | 2004-03-12 | 2005-09-22 | Chugoku Electric Power Co Inc:The | Holder |
| CN203983848U (en) * | 2014-07-04 | 2014-12-03 | 国家电网公司 | For changing the device of conductor spacer in UHV transmission line |
| CN107887836A (en) * | 2017-10-23 | 2018-04-06 | 国网辽宁省电力有限公司本溪供电公司 | Tangent tower overhead-groundwire lifter and its aerial earth wire method for improving, power construction implementation |
| CN114893368A (en) * | 2022-05-05 | 2022-08-12 | 王慧 | Voice warning system for locomotive |
| CN115384387A (en) * | 2022-10-28 | 2022-11-25 | 国网浙江慈溪市供电有限公司 | Low-voltage uninterrupted operation method and comprehensive maintenance vehicle |
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| CN115799864B (en) | 2023-11-03 |
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